SUBMENU:=Wireless Drivers
TITLE:=Linux 802.11 Wireless Networking Stack
DEPENDS:=@LINUX_2_6 +kmod-crypto-arc4 +kmod-crypto-aes
- KCONFIG:=CONFIG_MAC80211
FILES:= \
$(PKG_BUILD_DIR)/mac80211/mac80211.$(LINUX_KMOD_SUFFIX) \
- $(PKG_BUILD_DIR)/mac80211/rc80211_lowest.$(LINUX_KMOD_SUFFIX) \
$(PKG_BUILD_DIR)/mac80211/rc80211_simple.$(LINUX_KMOD_SUFFIX) \
$(PKG_BUILD_DIR)/wireless/cfg80211.$(LINUX_KMOD_SUFFIX)
AUTOLOAD:=$(call AutoLoad,20,cfg80211 mac80211 rc80211_simple)
endef
define KernelPackage/mac80211/description
- This package contains the DeviceScape 80211 wireless stack.
+Linux 802.11 Wireless Networking Stack
endef
-define Build/Prepare
- mkdir -p $(PKG_BUILD_DIR)/mac80211
- $(CP) ./src/mac80211/* $(PKG_BUILD_DIR)/mac80211/
- mkdir -p $(PKG_BUILD_DIR)/wireless
- $(CP) ./src/wireless/* $(PKG_BUILD_DIR)/wireless/
-endef
+CONFOPTS:=MAC80211 CFG80211 NL80211
-ifneq ($(CONFIG_MAC80211),)
+BUILDFLAGS:= \
+ $(foreach opt,$(CONFOPTS),-DCONFIG_$(opt) ) \
+ $(if $(CONFIG_LEDS_TRIGGERS), -DCONFIG_MAC80211_LEDS -DCONFIG_LEDS_TRIGGERS)
- MAKE_OPTS:= \
+MAKE_OPTS:= \
CROSS_COMPILE="$(TARGET_CROSS)" \
ARCH="$(LINUX_KARCH)" \
- EXTRA_CFLAGS="$(BUILDFLAGS) -DCONFIG_MAC80211_LEDS -DCONFIG_LEDS_TRIGGERS" \
- CONFIG_MAC80211=m \
+ EXTRA_CFLAGS="$(BUILDFLAGS)" \
+ $(foreach opt,$(CONFOPTS),CONFIG_$(opt)=m) \
CONFIG_MAC80211_LEDS=$(CONFIG_LEDS_TRIGGERS) \
+ LINUXINCLUDE="-I${CURDIR}/src/include -I$(LINUX_DIR)/include -include linux/autoconf.h" \
+ V=1
+
+
+ifneq ($(findstring 2.6.23,$(LINUX_VERSION)),)
+ define Build/Prepare
+ mkdir -p $(PKG_BUILD_DIR)/mac80211
+ $(CP) ./src/mac80211/* $(PKG_BUILD_DIR)/mac80211/
+ mkdir -p $(PKG_BUILD_DIR)/wireless
+ $(CP) ./src/wireless/* $(PKG_BUILD_DIR)/wireless/
+ endef
- define Build/Compile/it
+ define Build/Compile
$(MAKE) -C "$(LINUX_DIR)" $(MAKE_OPTS) SUBDIRS="$(PKG_BUILD_DIR)/wireless" modules
$(MAKE) -C "$(LINUX_DIR)" $(MAKE_OPTS) SUBDIRS="$(PKG_BUILD_DIR)/mac80211" modules
endef
-endif
-
-define Build/Compile
- $(call Build/Compile/it)
-endef
-
-define Build/InstallDev
+ define Build/InstallDev
mkdir -p $(1)/usr/include/mac80211
- $(CP) $(PKG_BUILD_DIR)/mac80211/{hostapd_ioctl,ieee80211_common}.h $(1)/usr/include/mac80211/
-endef
+ $(CP) ./src/include $(1)/usr/include/mac80211/
+ endef
-define Build/UninstallDev
+ define Build/UninstallDev
rm -rf $(1)/usr/include/mac80211
-endef
+ endef
-define KernelPackage/mac80211/install
+ define KernelPackage/mac80211/install
$(INSTALL_DIR) $(1)/lib/wifi
$(INSTALL_DATA) ./files/lib/wifi/mac80211.sh $(1)/lib/wifi
-endef
+ endef
+endif
$(eval $(call KernelPackage,mac80211))
--- /dev/null
+/*
+ * IEEE 802.11 defines
+ *
+ * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
+ * <jkmaline@cc.hut.fi>
+ * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright (c) 2005, Devicescape Software, Inc.
+ * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef IEEE80211_H
+#define IEEE80211_H
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+
+#define FCS_LEN 4
+
+#define IEEE80211_FCTL_VERS 0x0003
+#define IEEE80211_FCTL_FTYPE 0x000c
+#define IEEE80211_FCTL_STYPE 0x00f0
+#define IEEE80211_FCTL_TODS 0x0100
+#define IEEE80211_FCTL_FROMDS 0x0200
+#define IEEE80211_FCTL_MOREFRAGS 0x0400
+#define IEEE80211_FCTL_RETRY 0x0800
+#define IEEE80211_FCTL_PM 0x1000
+#define IEEE80211_FCTL_MOREDATA 0x2000
+#define IEEE80211_FCTL_PROTECTED 0x4000
+#define IEEE80211_FCTL_ORDER 0x8000
+
+#define IEEE80211_SCTL_FRAG 0x000F
+#define IEEE80211_SCTL_SEQ 0xFFF0
+
+#define IEEE80211_FTYPE_MGMT 0x0000
+#define IEEE80211_FTYPE_CTL 0x0004
+#define IEEE80211_FTYPE_DATA 0x0008
+
+/* management */
+#define IEEE80211_STYPE_ASSOC_REQ 0x0000
+#define IEEE80211_STYPE_ASSOC_RESP 0x0010
+#define IEEE80211_STYPE_REASSOC_REQ 0x0020
+#define IEEE80211_STYPE_REASSOC_RESP 0x0030
+#define IEEE80211_STYPE_PROBE_REQ 0x0040
+#define IEEE80211_STYPE_PROBE_RESP 0x0050
+#define IEEE80211_STYPE_BEACON 0x0080
+#define IEEE80211_STYPE_ATIM 0x0090
+#define IEEE80211_STYPE_DISASSOC 0x00A0
+#define IEEE80211_STYPE_AUTH 0x00B0
+#define IEEE80211_STYPE_DEAUTH 0x00C0
+#define IEEE80211_STYPE_ACTION 0x00D0
+
+/* control */
+#define IEEE80211_STYPE_PSPOLL 0x00A0
+#define IEEE80211_STYPE_RTS 0x00B0
+#define IEEE80211_STYPE_CTS 0x00C0
+#define IEEE80211_STYPE_ACK 0x00D0
+#define IEEE80211_STYPE_CFEND 0x00E0
+#define IEEE80211_STYPE_CFENDACK 0x00F0
+
+/* data */
+#define IEEE80211_STYPE_DATA 0x0000
+#define IEEE80211_STYPE_DATA_CFACK 0x0010
+#define IEEE80211_STYPE_DATA_CFPOLL 0x0020
+#define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
+#define IEEE80211_STYPE_NULLFUNC 0x0040
+#define IEEE80211_STYPE_CFACK 0x0050
+#define IEEE80211_STYPE_CFPOLL 0x0060
+#define IEEE80211_STYPE_CFACKPOLL 0x0070
+#define IEEE80211_STYPE_QOS_DATA 0x0080
+#define IEEE80211_STYPE_QOS_DATA_CFACK 0x0090
+#define IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0
+#define IEEE80211_STYPE_QOS_DATA_CFACKPOLL 0x00B0
+#define IEEE80211_STYPE_QOS_NULLFUNC 0x00C0
+#define IEEE80211_STYPE_QOS_CFACK 0x00D0
+#define IEEE80211_STYPE_QOS_CFPOLL 0x00E0
+#define IEEE80211_STYPE_QOS_CFACKPOLL 0x00F0
+
+
+/* miscellaneous IEEE 802.11 constants */
+#define IEEE80211_MAX_FRAG_THRESHOLD 2346
+#define IEEE80211_MAX_RTS_THRESHOLD 2347
+#define IEEE80211_MAX_AID 2007
+#define IEEE80211_MAX_TIM_LEN 251
+#define IEEE80211_MAX_DATA_LEN 2304
+/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
+ 6.2.1.1.2.
+
+ The figure in section 7.1.2 suggests a body size of up to 2312
+ bytes is allowed, which is a bit confusing, I suspect this
+ represents the 2304 bytes of real data, plus a possible 8 bytes of
+ WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
+
+#define IEEE80211_MAX_SSID_LEN 32
+
+struct ieee80211_hdr {
+ __le16 frame_control;
+ __le16 duration_id;
+ u8 addr1[6];
+ u8 addr2[6];
+ u8 addr3[6];
+ __le16 seq_ctrl;
+ u8 addr4[6];
+} __attribute__ ((packed));
+
+
+struct ieee80211_mgmt {
+ __le16 frame_control;
+ __le16 duration;
+ u8 da[6];
+ u8 sa[6];
+ u8 bssid[6];
+ __le16 seq_ctrl;
+ union {
+ struct {
+ __le16 auth_alg;
+ __le16 auth_transaction;
+ __le16 status_code;
+ /* possibly followed by Challenge text */
+ u8 variable[0];
+ } __attribute__ ((packed)) auth;
+ struct {
+ __le16 reason_code;
+ } __attribute__ ((packed)) deauth;
+ struct {
+ __le16 capab_info;
+ __le16 listen_interval;
+ /* followed by SSID and Supported rates */
+ u8 variable[0];
+ } __attribute__ ((packed)) assoc_req;
+ struct {
+ __le16 capab_info;
+ __le16 status_code;
+ __le16 aid;
+ /* followed by Supported rates */
+ u8 variable[0];
+ } __attribute__ ((packed)) assoc_resp, reassoc_resp;
+ struct {
+ __le16 capab_info;
+ __le16 listen_interval;
+ u8 current_ap[6];
+ /* followed by SSID and Supported rates */
+ u8 variable[0];
+ } __attribute__ ((packed)) reassoc_req;
+ struct {
+ __le16 reason_code;
+ } __attribute__ ((packed)) disassoc;
+ struct {
+ __le64 timestamp;
+ __le16 beacon_int;
+ __le16 capab_info;
+ /* followed by some of SSID, Supported rates,
+ * FH Params, DS Params, CF Params, IBSS Params, TIM */
+ u8 variable[0];
+ } __attribute__ ((packed)) beacon;
+ struct {
+ /* only variable items: SSID, Supported rates */
+ u8 variable[0];
+ } __attribute__ ((packed)) probe_req;
+ struct {
+ __le64 timestamp;
+ __le16 beacon_int;
+ __le16 capab_info;
+ /* followed by some of SSID, Supported rates,
+ * FH Params, DS Params, CF Params, IBSS Params */
+ u8 variable[0];
+ } __attribute__ ((packed)) probe_resp;
+ struct {
+ u8 category;
+ union {
+ struct {
+ u8 action_code;
+ u8 dialog_token;
+ u8 status_code;
+ u8 variable[0];
+ } __attribute__ ((packed)) wme_action;
+ struct{
+ u8 action_code;
+ u8 element_id;
+ u8 length;
+ u8 switch_mode;
+ u8 new_chan;
+ u8 switch_count;
+ } __attribute__((packed)) chan_switch;
+ } u;
+ } __attribute__ ((packed)) action;
+ } u;
+} __attribute__ ((packed));
+
+
+/* Control frames */
+struct ieee80211_rts {
+ __le16 frame_control;
+ __le16 duration;
+ u8 ra[6];
+ u8 ta[6];
+} __attribute__ ((packed));
+
+struct ieee80211_cts {
+ __le16 frame_control;
+ __le16 duration;
+ u8 ra[6];
+} __attribute__ ((packed));
+
+
+/* Authentication algorithms */
+#define WLAN_AUTH_OPEN 0
+#define WLAN_AUTH_SHARED_KEY 1
+#define WLAN_AUTH_FAST_BSS_TRANSITION 2
+#define WLAN_AUTH_LEAP 128
+
+#define WLAN_AUTH_CHALLENGE_LEN 128
+
+#define WLAN_CAPABILITY_ESS (1<<0)
+#define WLAN_CAPABILITY_IBSS (1<<1)
+#define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
+#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
+#define WLAN_CAPABILITY_PRIVACY (1<<4)
+#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
+#define WLAN_CAPABILITY_PBCC (1<<6)
+#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
+/* 802.11h */
+#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
+#define WLAN_CAPABILITY_QOS (1<<9)
+#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
+#define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
+
+/* 802.11g ERP information element */
+#define WLAN_ERP_NON_ERP_PRESENT (1<<0)
+#define WLAN_ERP_USE_PROTECTION (1<<1)
+#define WLAN_ERP_BARKER_PREAMBLE (1<<2)
+
+/* WLAN_ERP_BARKER_PREAMBLE values */
+enum {
+ WLAN_ERP_PREAMBLE_SHORT = 0,
+ WLAN_ERP_PREAMBLE_LONG = 1,
+};
+
+/* Status codes */
+enum ieee80211_statuscode {
+ WLAN_STATUS_SUCCESS = 0,
+ WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
+ WLAN_STATUS_CAPS_UNSUPPORTED = 10,
+ WLAN_STATUS_REASSOC_NO_ASSOC = 11,
+ WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
+ WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
+ WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
+ WLAN_STATUS_CHALLENGE_FAIL = 15,
+ WLAN_STATUS_AUTH_TIMEOUT = 16,
+ WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
+ WLAN_STATUS_ASSOC_DENIED_RATES = 18,
+ /* 802.11b */
+ WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
+ WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
+ WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
+ /* 802.11h */
+ WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
+ WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
+ WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
+ /* 802.11g */
+ WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
+ WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
+ /* 802.11i */
+ WLAN_STATUS_INVALID_IE = 40,
+ WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
+ WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
+ WLAN_STATUS_INVALID_AKMP = 43,
+ WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
+ WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
+ WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
+};
+
+
+/* Reason codes */
+enum ieee80211_reasoncode {
+ WLAN_REASON_UNSPECIFIED = 1,
+ WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
+ WLAN_REASON_DEAUTH_LEAVING = 3,
+ WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
+ WLAN_REASON_DISASSOC_AP_BUSY = 5,
+ WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
+ WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
+ WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
+ WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
+ /* 802.11h */
+ WLAN_REASON_DISASSOC_BAD_POWER = 10,
+ WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
+ /* 802.11i */
+ WLAN_REASON_INVALID_IE = 13,
+ WLAN_REASON_MIC_FAILURE = 14,
+ WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
+ WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
+ WLAN_REASON_IE_DIFFERENT = 17,
+ WLAN_REASON_INVALID_GROUP_CIPHER = 18,
+ WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
+ WLAN_REASON_INVALID_AKMP = 20,
+ WLAN_REASON_UNSUPP_RSN_VERSION = 21,
+ WLAN_REASON_INVALID_RSN_IE_CAP = 22,
+ WLAN_REASON_IEEE8021X_FAILED = 23,
+ WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
+};
+
+
+/* Information Element IDs */
+enum ieee80211_eid {
+ WLAN_EID_SSID = 0,
+ WLAN_EID_SUPP_RATES = 1,
+ WLAN_EID_FH_PARAMS = 2,
+ WLAN_EID_DS_PARAMS = 3,
+ WLAN_EID_CF_PARAMS = 4,
+ WLAN_EID_TIM = 5,
+ WLAN_EID_IBSS_PARAMS = 6,
+ WLAN_EID_CHALLENGE = 16,
+ /* 802.11d */
+ WLAN_EID_COUNTRY = 7,
+ WLAN_EID_HP_PARAMS = 8,
+ WLAN_EID_HP_TABLE = 9,
+ WLAN_EID_REQUEST = 10,
+ /* 802.11h */
+ WLAN_EID_PWR_CONSTRAINT = 32,
+ WLAN_EID_PWR_CAPABILITY = 33,
+ WLAN_EID_TPC_REQUEST = 34,
+ WLAN_EID_TPC_REPORT = 35,
+ WLAN_EID_SUPPORTED_CHANNELS = 36,
+ WLAN_EID_CHANNEL_SWITCH = 37,
+ WLAN_EID_MEASURE_REQUEST = 38,
+ WLAN_EID_MEASURE_REPORT = 39,
+ WLAN_EID_QUIET = 40,
+ WLAN_EID_IBSS_DFS = 41,
+ /* 802.11g */
+ WLAN_EID_ERP_INFO = 42,
+ WLAN_EID_EXT_SUPP_RATES = 50,
+ /* 802.11i */
+ WLAN_EID_RSN = 48,
+ WLAN_EID_WPA = 221,
+ WLAN_EID_GENERIC = 221,
+ WLAN_EID_VENDOR_SPECIFIC = 221,
+ WLAN_EID_QOS_PARAMETER = 222
+};
+
+/* cipher suite selectors */
+#define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
+#define WLAN_CIPHER_SUITE_WEP40 0x000FAC01
+#define WLAN_CIPHER_SUITE_TKIP 0x000FAC02
+/* reserved: 0x000FAC03 */
+#define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
+#define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
+
+#define WLAN_MAX_KEY_LEN 32
+
+/**
+ * ieee80211_get_SA - get pointer to SA
+ *
+ * Given an 802.11 frame, this function returns the offset
+ * to the source address (SA). It does not verify that the
+ * header is long enough to contain the address, and the
+ * header must be long enough to contain the frame control
+ * field.
+ *
+ * @hdr: the frame
+ */
+static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
+{
+ u8 *raw = (u8 *) hdr;
+ u8 tofrom = (*(raw+1)) & 3; /* get the TODS and FROMDS bits */
+
+ switch (tofrom) {
+ case 2:
+ return hdr->addr3;
+ case 3:
+ return hdr->addr4;
+ }
+ return hdr->addr2;
+}
+
+/**
+ * ieee80211_get_DA - get pointer to DA
+ *
+ * Given an 802.11 frame, this function returns the offset
+ * to the destination address (DA). It does not verify that
+ * the header is long enough to contain the address, and the
+ * header must be long enough to contain the frame control
+ * field.
+ *
+ * @hdr: the frame
+ */
+static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
+{
+ u8 *raw = (u8 *) hdr;
+ u8 to_ds = (*(raw+1)) & 1; /* get the TODS bit */
+
+ if (to_ds)
+ return hdr->addr3;
+ return hdr->addr1;
+}
+
+/**
+ * ieee80211_get_morefrag - determine whether the MOREFRAGS bit is set
+ *
+ * This function determines whether the "more fragments" bit is set
+ * in the frame.
+ *
+ * @hdr: the frame
+ */
+static inline int ieee80211_get_morefrag(struct ieee80211_hdr *hdr)
+{
+ return (le16_to_cpu(hdr->frame_control) &
+ IEEE80211_FCTL_MOREFRAGS) != 0;
+}
+
+#endif /* IEEE80211_H */
--- /dev/null
+#ifndef __LINUX_NL80211_H
+#define __LINUX_NL80211_H
+/*
+ * 802.11 netlink interface public header
+ *
+ * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ */
+
+/**
+ * enum nl80211_commands - supported nl80211 commands
+ *
+ * @NL80211_CMD_UNSPEC: unspecified command to catch errors
+ *
+ * @NL80211_CMD_GET_WIPHY: request information about a wiphy or dump request
+ * to get a list of all present wiphys.
+ * @NL80211_CMD_SET_WIPHY: set wiphy name, needs %NL80211_ATTR_WIPHY and
+ * %NL80211_ATTR_WIPHY_NAME.
+ * @NL80211_CMD_NEW_WIPHY: Newly created wiphy, response to get request
+ * or rename notification. Has attributes %NL80211_ATTR_WIPHY and
+ * %NL80211_ATTR_WIPHY_NAME.
+ * @NL80211_CMD_DEL_WIPHY: Wiphy deleted. Has attributes
+ * %NL80211_ATTR_WIPHY and %NL80211_ATTR_WIPHY_NAME.
+ *
+ * @NL80211_CMD_GET_INTERFACE: Request an interface's configuration;
+ * either a dump request on a %NL80211_ATTR_WIPHY or a specific get
+ * on an %NL80211_ATTR_IFINDEX is supported.
+ * @NL80211_CMD_SET_INTERFACE: Set type of a virtual interface, requires
+ %NL80211_ATTR_IFINDEX and %NL80211_ATTR_IFTYPE.
+ * @NL80211_CMD_NEW_INTERFACE: Newly created virtual interface or response
+ * to %NL80211_CMD_GET_INTERFACE. Has %NL80211_ATTR_IFINDEX,
+ * %NL80211_ATTR_WIPHY and %NL80211_ATTR_IFTYPE attributes. Can also
+ * be sent from userspace to request creation of a new virtual interface,
+ * then requires attributes %NL80211_ATTR_WIPHY, %NL80211_ATTR_IFTYPE and
+ * %NL80211_ATTR_IFNAME.
+ * @NL80211_CMD_DEL_INTERFACE: Virtual interface was deleted, has attributes
+ * %NL80211_ATTR_IFINDEX and %NL80211_ATTR_WIPHY. Can also be sent from
+ * userspace to request deletion of a virtual interface, then requires
+ * attribute %NL80211_ATTR_IFINDEX.
+ *
+ * @NL80211_CMD_MAX: highest used command number
+ * @__NL80211_CMD_AFTER_LAST: internal use
+ */
+enum nl80211_commands {
+/* don't change the order or add anything inbetween, this is ABI! */
+ NL80211_CMD_UNSPEC,
+
+ NL80211_CMD_GET_WIPHY, /* can dump */
+ NL80211_CMD_SET_WIPHY,
+ NL80211_CMD_NEW_WIPHY,
+ NL80211_CMD_DEL_WIPHY,
+
+ NL80211_CMD_GET_INTERFACE, /* can dump */
+ NL80211_CMD_SET_INTERFACE,
+ NL80211_CMD_NEW_INTERFACE,
+ NL80211_CMD_DEL_INTERFACE,
+
+ /* add commands here */
+
+ /* used to define NL80211_CMD_MAX below */
+ __NL80211_CMD_AFTER_LAST,
+ NL80211_CMD_MAX = __NL80211_CMD_AFTER_LAST - 1
+};
+
+
+/**
+ * enum nl80211_attrs - nl80211 netlink attributes
+ *
+ * @NL80211_ATTR_UNSPEC: unspecified attribute to catch errors
+ *
+ * @NL80211_ATTR_WIPHY: index of wiphy to operate on, cf.
+ * /sys/class/ieee80211/<phyname>/index
+ * @NL80211_ATTR_WIPHY_NAME: wiphy name (used for renaming)
+ *
+ * @NL80211_ATTR_IFINDEX: network interface index of the device to operate on
+ * @NL80211_ATTR_IFNAME: network interface name
+ * @NL80211_ATTR_IFTYPE: type of virtual interface, see &enum nl80211_iftype
+ *
+ * @NL80211_ATTR_MAX: highest attribute number currently defined
+ * @__NL80211_ATTR_AFTER_LAST: internal use
+ */
+enum nl80211_attrs {
+/* don't change the order or add anything inbetween, this is ABI! */
+ NL80211_ATTR_UNSPEC,
+
+ NL80211_ATTR_WIPHY,
+ NL80211_ATTR_WIPHY_NAME,
+
+ NL80211_ATTR_IFINDEX,
+ NL80211_ATTR_IFNAME,
+ NL80211_ATTR_IFTYPE,
+
+ /* add attributes here, update the policy in nl80211.c */
+
+ __NL80211_ATTR_AFTER_LAST,
+ NL80211_ATTR_MAX = __NL80211_ATTR_AFTER_LAST - 1
+};
+
+/**
+ * enum nl80211_iftype - (virtual) interface types
+ *
+ * @NL80211_IFTYPE_UNSPECIFIED: unspecified type, driver decides
+ * @NL80211_IFTYPE_ADHOC: independent BSS member
+ * @NL80211_IFTYPE_STATION: managed BSS member
+ * @NL80211_IFTYPE_AP: access point
+ * @NL80211_IFTYPE_AP_VLAN: VLAN interface for access points
+ * @NL80211_IFTYPE_WDS: wireless distribution interface
+ * @NL80211_IFTYPE_MONITOR: monitor interface receiving all frames
+ * @NL80211_IFTYPE_MAX: highest interface type number currently defined
+ * @__NL80211_IFTYPE_AFTER_LAST: internal use
+ *
+ * These values are used with the %NL80211_ATTR_IFTYPE
+ * to set the type of an interface.
+ *
+ */
+enum nl80211_iftype {
+ NL80211_IFTYPE_UNSPECIFIED,
+ NL80211_IFTYPE_ADHOC,
+ NL80211_IFTYPE_STATION,
+ NL80211_IFTYPE_AP,
+ NL80211_IFTYPE_AP_VLAN,
+ NL80211_IFTYPE_WDS,
+ NL80211_IFTYPE_MONITOR,
+
+ /* keep last */
+ __NL80211_IFTYPE_AFTER_LAST,
+ NL80211_IFTYPE_MAX = __NL80211_IFTYPE_AFTER_LAST - 1
+};
+
+#endif /* __LINUX_NL80211_H */
--- /dev/null
+#ifndef __NET_CFG80211_H
+#define __NET_CFG80211_H
+
+#include <linux/netlink.h>
+#include <linux/skbuff.h>
+#include <linux/nl80211.h>
+#include <net/genetlink.h>
+
+/*
+ * 802.11 configuration in-kernel interface
+ *
+ * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ */
+
+/* Radiotap header iteration
+ * implemented in net/wireless/radiotap.c
+ * docs in Documentation/networking/radiotap-headers.txt
+ */
+/**
+ * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
+ * @rtheader: pointer to the radiotap header we are walking through
+ * @max_length: length of radiotap header in cpu byte ordering
+ * @this_arg_index: IEEE80211_RADIOTAP_... index of current arg
+ * @this_arg: pointer to current radiotap arg
+ * @arg_index: internal next argument index
+ * @arg: internal next argument pointer
+ * @next_bitmap: internal pointer to next present u32
+ * @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
+ */
+
+struct ieee80211_radiotap_iterator {
+ struct ieee80211_radiotap_header *rtheader;
+ int max_length;
+ int this_arg_index;
+ u8 *this_arg;
+
+ int arg_index;
+ u8 *arg;
+ __le32 *next_bitmap;
+ u32 bitmap_shifter;
+};
+
+extern int ieee80211_radiotap_iterator_init(
+ struct ieee80211_radiotap_iterator *iterator,
+ struct ieee80211_radiotap_header *radiotap_header,
+ int max_length);
+
+extern int ieee80211_radiotap_iterator_next(
+ struct ieee80211_radiotap_iterator *iterator);
+
+
+/* from net/wireless.h */
+struct wiphy;
+
+/**
+ * struct cfg80211_ops - backend description for wireless configuration
+ *
+ * This struct is registered by fullmac card drivers and/or wireless stacks
+ * in order to handle configuration requests on their interfaces.
+ *
+ * All callbacks except where otherwise noted should return 0
+ * on success or a negative error code.
+ *
+ * All operations are currently invoked under rtnl for consistency with the
+ * wireless extensions but this is subject to reevaluation as soon as this
+ * code is used more widely and we have a first user without wext.
+ *
+ * @add_virtual_intf: create a new virtual interface with the given name
+ *
+ * @del_virtual_intf: remove the virtual interface determined by ifindex.
+ *
+ * @change_virtual_intf: change type of virtual interface
+ *
+ */
+struct cfg80211_ops {
+ int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
+ enum nl80211_iftype type);
+ int (*del_virtual_intf)(struct wiphy *wiphy, int ifindex);
+ int (*change_virtual_intf)(struct wiphy *wiphy, int ifindex,
+ enum nl80211_iftype type);
+};
+
+#endif /* __NET_CFG80211_H */
--- /dev/null
+/* $FreeBSD: src/sys/net80211/ieee80211_radiotap.h,v 1.5 2005/01/22 20:12:05 sam Exp $ */
+/* $NetBSD: ieee80211_radiotap.h,v 1.11 2005/06/22 06:16:02 dyoung Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004 David Young. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of David Young may not be used to endorse or promote
+ * products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DAVID
+ * YOUNG BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ */
+
+/*
+ * Modifications to fit into the linux IEEE 802.11 stack,
+ * Mike Kershaw (dragorn@kismetwireless.net)
+ */
+
+#ifndef IEEE80211RADIOTAP_H
+#define IEEE80211RADIOTAP_H
+
+#include <linux/if_ether.h>
+#include <linux/kernel.h>
+#include <asm/unaligned.h>
+
+/* Radiotap header version (from official NetBSD feed) */
+#define IEEE80211RADIOTAP_VERSION "1.5"
+/* Base version of the radiotap packet header data */
+#define PKTHDR_RADIOTAP_VERSION 0
+
+/* A generic radio capture format is desirable. There is one for
+ * Linux, but it is neither rigidly defined (there were not even
+ * units given for some fields) nor easily extensible.
+ *
+ * I suggest the following extensible radio capture format. It is
+ * based on a bitmap indicating which fields are present.
+ *
+ * I am trying to describe precisely what the application programmer
+ * should expect in the following, and for that reason I tell the
+ * units and origin of each measurement (where it applies), or else I
+ * use sufficiently weaselly language ("is a monotonically nondecreasing
+ * function of...") that I cannot set false expectations for lawyerly
+ * readers.
+ */
+
+/* XXX tcpdump/libpcap do not tolerate variable-length headers,
+ * yet, so we pad every radiotap header to 64 bytes. Ugh.
+ */
+#define IEEE80211_RADIOTAP_HDRLEN 64
+
+/* The radio capture header precedes the 802.11 header.
+ * All data in the header is little endian on all platforms.
+ */
+struct ieee80211_radiotap_header {
+ u8 it_version; /* Version 0. Only increases
+ * for drastic changes,
+ * introduction of compatible
+ * new fields does not count.
+ */
+ u8 it_pad;
+ __le16 it_len; /* length of the whole
+ * header in bytes, including
+ * it_version, it_pad,
+ * it_len, and data fields.
+ */
+ __le32 it_present; /* A bitmap telling which
+ * fields are present. Set bit 31
+ * (0x80000000) to extend the
+ * bitmap by another 32 bits.
+ * Additional extensions are made
+ * by setting bit 31.
+ */
+};
+
+/* Name Data type Units
+ * ---- --------- -----
+ *
+ * IEEE80211_RADIOTAP_TSFT __le64 microseconds
+ *
+ * Value in microseconds of the MAC's 64-bit 802.11 Time
+ * Synchronization Function timer when the first bit of the
+ * MPDU arrived at the MAC. For received frames, only.
+ *
+ * IEEE80211_RADIOTAP_CHANNEL 2 x __le16 MHz, bitmap
+ *
+ * Tx/Rx frequency in MHz, followed by flags (see below).
+ *
+ * IEEE80211_RADIOTAP_FHSS __le16 see below
+ *
+ * For frequency-hopping radios, the hop set (first byte)
+ * and pattern (second byte).
+ *
+ * IEEE80211_RADIOTAP_RATE u8 500kb/s
+ *
+ * Tx/Rx data rate
+ *
+ * IEEE80211_RADIOTAP_DBM_ANTSIGNAL s8 decibels from
+ * one milliwatt (dBm)
+ *
+ * RF signal power at the antenna, decibel difference from
+ * one milliwatt.
+ *
+ * IEEE80211_RADIOTAP_DBM_ANTNOISE s8 decibels from
+ * one milliwatt (dBm)
+ *
+ * RF noise power at the antenna, decibel difference from one
+ * milliwatt.
+ *
+ * IEEE80211_RADIOTAP_DB_ANTSIGNAL u8 decibel (dB)
+ *
+ * RF signal power at the antenna, decibel difference from an
+ * arbitrary, fixed reference.
+ *
+ * IEEE80211_RADIOTAP_DB_ANTNOISE u8 decibel (dB)
+ *
+ * RF noise power at the antenna, decibel difference from an
+ * arbitrary, fixed reference point.
+ *
+ * IEEE80211_RADIOTAP_LOCK_QUALITY __le16 unitless
+ *
+ * Quality of Barker code lock. Unitless. Monotonically
+ * nondecreasing with "better" lock strength. Called "Signal
+ * Quality" in datasheets. (Is there a standard way to measure
+ * this?)
+ *
+ * IEEE80211_RADIOTAP_TX_ATTENUATION __le16 unitless
+ *
+ * Transmit power expressed as unitless distance from max
+ * power set at factory calibration. 0 is max power.
+ * Monotonically nondecreasing with lower power levels.
+ *
+ * IEEE80211_RADIOTAP_DB_TX_ATTENUATION __le16 decibels (dB)
+ *
+ * Transmit power expressed as decibel distance from max power
+ * set at factory calibration. 0 is max power. Monotonically
+ * nondecreasing with lower power levels.
+ *
+ * IEEE80211_RADIOTAP_DBM_TX_POWER s8 decibels from
+ * one milliwatt (dBm)
+ *
+ * Transmit power expressed as dBm (decibels from a 1 milliwatt
+ * reference). This is the absolute power level measured at
+ * the antenna port.
+ *
+ * IEEE80211_RADIOTAP_FLAGS u8 bitmap
+ *
+ * Properties of transmitted and received frames. See flags
+ * defined below.
+ *
+ * IEEE80211_RADIOTAP_ANTENNA u8 antenna index
+ *
+ * Unitless indication of the Rx/Tx antenna for this packet.
+ * The first antenna is antenna 0.
+ *
+ * IEEE80211_RADIOTAP_RX_FLAGS __le16 bitmap
+ *
+ * Properties of received frames. See flags defined below.
+ *
+ * IEEE80211_RADIOTAP_TX_FLAGS __le16 bitmap
+ *
+ * Properties of transmitted frames. See flags defined below.
+ *
+ * IEEE80211_RADIOTAP_RTS_RETRIES u8 data
+ *
+ * Number of rts retries a transmitted frame used.
+ *
+ * IEEE80211_RADIOTAP_DATA_RETRIES u8 data
+ *
+ * Number of unicast retries a transmitted frame used.
+ *
+ */
+enum ieee80211_radiotap_type {
+ IEEE80211_RADIOTAP_TSFT = 0,
+ IEEE80211_RADIOTAP_FLAGS = 1,
+ IEEE80211_RADIOTAP_RATE = 2,
+ IEEE80211_RADIOTAP_CHANNEL = 3,
+ IEEE80211_RADIOTAP_FHSS = 4,
+ IEEE80211_RADIOTAP_DBM_ANTSIGNAL = 5,
+ IEEE80211_RADIOTAP_DBM_ANTNOISE = 6,
+ IEEE80211_RADIOTAP_LOCK_QUALITY = 7,
+ IEEE80211_RADIOTAP_TX_ATTENUATION = 8,
+ IEEE80211_RADIOTAP_DB_TX_ATTENUATION = 9,
+ IEEE80211_RADIOTAP_DBM_TX_POWER = 10,
+ IEEE80211_RADIOTAP_ANTENNA = 11,
+ IEEE80211_RADIOTAP_DB_ANTSIGNAL = 12,
+ IEEE80211_RADIOTAP_DB_ANTNOISE = 13,
+ IEEE80211_RADIOTAP_RX_FLAGS = 14,
+ IEEE80211_RADIOTAP_TX_FLAGS = 15,
+ IEEE80211_RADIOTAP_RTS_RETRIES = 16,
+ IEEE80211_RADIOTAP_DATA_RETRIES = 17,
+ IEEE80211_RADIOTAP_EXT = 31
+};
+
+/* Channel flags. */
+#define IEEE80211_CHAN_TURBO 0x0010 /* Turbo channel */
+#define IEEE80211_CHAN_CCK 0x0020 /* CCK channel */
+#define IEEE80211_CHAN_OFDM 0x0040 /* OFDM channel */
+#define IEEE80211_CHAN_2GHZ 0x0080 /* 2 GHz spectrum channel. */
+#define IEEE80211_CHAN_5GHZ 0x0100 /* 5 GHz spectrum channel */
+#define IEEE80211_CHAN_PASSIVE 0x0200 /* Only passive scan allowed */
+#define IEEE80211_CHAN_DYN 0x0400 /* Dynamic CCK-OFDM channel */
+#define IEEE80211_CHAN_GFSK 0x0800 /* GFSK channel (FHSS PHY) */
+
+/* For IEEE80211_RADIOTAP_FLAGS */
+#define IEEE80211_RADIOTAP_F_CFP 0x01 /* sent/received
+ * during CFP
+ */
+#define IEEE80211_RADIOTAP_F_SHORTPRE 0x02 /* sent/received
+ * with short
+ * preamble
+ */
+#define IEEE80211_RADIOTAP_F_WEP 0x04 /* sent/received
+ * with WEP encryption
+ */
+#define IEEE80211_RADIOTAP_F_FRAG 0x08 /* sent/received
+ * with fragmentation
+ */
+#define IEEE80211_RADIOTAP_F_FCS 0x10 /* frame includes FCS */
+#define IEEE80211_RADIOTAP_F_DATAPAD 0x20 /* frame has padding between
+ * 802.11 header and payload
+ * (to 32-bit boundary)
+ */
+/* For IEEE80211_RADIOTAP_RX_FLAGS */
+#define IEEE80211_RADIOTAP_F_RX_BADFCS 0x0001 /* frame failed crc check */
+
+/* For IEEE80211_RADIOTAP_TX_FLAGS */
+#define IEEE80211_RADIOTAP_F_TX_FAIL 0x0001 /* failed due to excessive
+ * retries */
+#define IEEE80211_RADIOTAP_F_TX_CTS 0x0002 /* used cts 'protection' */
+#define IEEE80211_RADIOTAP_F_TX_RTS 0x0004 /* used rts/cts handshake */
+
+/* Ugly macro to convert literal channel numbers into their mhz equivalents
+ * There are certianly some conditions that will break this (like feeding it '30')
+ * but they shouldn't arise since nothing talks on channel 30. */
+#define ieee80211chan2mhz(x) \
+ (((x) <= 14) ? \
+ (((x) == 14) ? 2484 : ((x) * 5) + 2407) : \
+ ((x) + 1000) * 5)
+
+/* helpers */
+static inline int ieee80211_get_radiotap_len(unsigned char *data)
+{
+ struct ieee80211_radiotap_header *hdr =
+ (struct ieee80211_radiotap_header *)data;
+
+ return le16_to_cpu(get_unaligned(&hdr->it_len));
+}
+
+#endif /* IEEE80211_RADIOTAP_H */
--- /dev/null
+/*
+ * mac80211 <-> driver interface
+ *
+ * Copyright 2002-2005, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef MAC80211_H
+#define MAC80211_H
+
+#include <linux/kernel.h>
+#include <linux/if_ether.h>
+#include <linux/skbuff.h>
+#include <linux/wireless.h>
+#include <linux/device.h>
+#include <linux/ieee80211.h>
+#include <net/wireless.h>
+#include <net/cfg80211.h>
+
+/**
+ * DOC: Introduction
+ *
+ * mac80211 is the Linux stack for 802.11 hardware that implements
+ * only partial functionality in hard- or firmware. This document
+ * defines the interface between mac80211 and low-level hardware
+ * drivers.
+ */
+
+/**
+ * DOC: Calling mac80211 from interrupts
+ *
+ * Only ieee80211_tx_status_irqsafe() and ieee80211_rx_irqsafe() can be
+ * called in hardware interrupt context. The low-level driver must not call any
+ * other functions in hardware interrupt context. If there is a need for such
+ * call, the low-level driver should first ACK the interrupt and perform the
+ * IEEE 802.11 code call after this, e.g. from a scheduled workqueue function.
+ */
+
+/**
+ * DOC: Warning
+ *
+ * If you're reading this document and not the header file itself, it will
+ * be incomplete because not all documentation has been converted yet.
+ */
+
+/**
+ * DOC: Frame format
+ *
+ * As a general rule, when frames are passed between mac80211 and the driver,
+ * they start with the IEEE 802.11 header and include the same octets that are
+ * sent over the air except for the FCS which should be calculated by the
+ * hardware.
+ *
+ * There are, however, various exceptions to this rule for advanced features:
+ *
+ * The first exception is for hardware encryption and decryption offload
+ * where the IV/ICV may or may not be generated in hardware.
+ *
+ * Secondly, when the hardware handles fragmentation, the frame handed to
+ * the driver from mac80211 is the MSDU, not the MPDU.
+ *
+ * Finally, for received frames, the driver is able to indicate that it has
+ * filled a radiotap header and put that in front of the frame; if it does
+ * not do so then mac80211 may add this under certain circumstances.
+ */
+
+#define IEEE80211_CHAN_W_SCAN 0x00000001
+#define IEEE80211_CHAN_W_ACTIVE_SCAN 0x00000002
+#define IEEE80211_CHAN_W_IBSS 0x00000004
+
+/* Channel information structure. Low-level driver is expected to fill in chan,
+ * freq, and val fields. Other fields will be filled in by 80211.o based on
+ * hostapd information and low-level driver does not need to use them. The
+ * limits for each channel will be provided in 'struct ieee80211_conf' when
+ * configuring the low-level driver with hw->config callback. If a device has
+ * a default regulatory domain, IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED
+ * can be set to let the driver configure all fields */
+struct ieee80211_channel {
+ short chan; /* channel number (IEEE 802.11) */
+ short freq; /* frequency in MHz */
+ int val; /* hw specific value for the channel */
+ int flag; /* flag for hostapd use (IEEE80211_CHAN_*) */
+ unsigned char power_level;
+ unsigned char antenna_max;
+};
+
+#define IEEE80211_RATE_ERP 0x00000001
+#define IEEE80211_RATE_BASIC 0x00000002
+#define IEEE80211_RATE_PREAMBLE2 0x00000004
+#define IEEE80211_RATE_SUPPORTED 0x00000010
+#define IEEE80211_RATE_OFDM 0x00000020
+#define IEEE80211_RATE_CCK 0x00000040
+#define IEEE80211_RATE_MANDATORY 0x00000100
+
+#define IEEE80211_RATE_CCK_2 (IEEE80211_RATE_CCK | IEEE80211_RATE_PREAMBLE2)
+#define IEEE80211_RATE_MODULATION(f) \
+ (f & (IEEE80211_RATE_CCK | IEEE80211_RATE_OFDM))
+
+/* Low-level driver should set PREAMBLE2, OFDM and CCK flags.
+ * BASIC, SUPPORTED, ERP, and MANDATORY flags are set in 80211.o based on the
+ * configuration. */
+struct ieee80211_rate {
+ int rate; /* rate in 100 kbps */
+ int val; /* hw specific value for the rate */
+ int flags; /* IEEE80211_RATE_ flags */
+ int val2; /* hw specific value for the rate when using short preamble
+ * (only when IEEE80211_RATE_PREAMBLE2 flag is set, i.e., for
+ * 2, 5.5, and 11 Mbps) */
+ signed char min_rssi_ack;
+ unsigned char min_rssi_ack_delta;
+
+ /* following fields are set by 80211.o and need not be filled by the
+ * low-level driver */
+ int rate_inv; /* inverse of the rate (LCM(all rates) / rate) for
+ * optimizing channel utilization estimates */
+};
+
+/**
+ * enum ieee80211_phymode - PHY modes
+ *
+ * @MODE_IEEE80211A: 5GHz as defined by 802.11a/802.11h
+ * @MODE_IEEE80211B: 2.4 GHz as defined by 802.11b
+ * @MODE_IEEE80211G: 2.4 GHz as defined by 802.11g (with OFDM),
+ * backwards compatible with 11b mode
+ * @NUM_IEEE80211_MODES: internal
+ */
+enum ieee80211_phymode {
+ MODE_IEEE80211A,
+ MODE_IEEE80211B,
+ MODE_IEEE80211G,
+
+ /* keep last */
+ NUM_IEEE80211_MODES
+};
+
+/**
+ * struct ieee80211_hw_mode - PHY mode definition
+ *
+ * This structure describes the capabilities supported by the device
+ * in a single PHY mode.
+ *
+ * @mode: the PHY mode for this definition
+ * @num_channels: number of supported channels
+ * @channels: pointer to array of supported channels
+ * @num_rates: number of supported bitrates
+ * @rates: pointer to array of supported bitrates
+ * @list: internal
+ */
+struct ieee80211_hw_mode {
+ struct list_head list;
+ struct ieee80211_channel *channels;
+ struct ieee80211_rate *rates;
+ enum ieee80211_phymode mode;
+ int num_channels;
+ int num_rates;
+};
+
+/**
+ * struct ieee80211_tx_queue_params - transmit queue configuration
+ *
+ * The information provided in this structure is required for QoS
+ * transmit queue configuration.
+ *
+ * @aifs: arbitration interface space [0..255, -1: use default]
+ * @cw_min: minimum contention window [will be a value of the form
+ * 2^n-1 in the range 1..1023; 0: use default]
+ * @cw_max: maximum contention window [like @cw_min]
+ * @burst_time: maximum burst time in units of 0.1ms, 0 meaning disabled
+ */
+struct ieee80211_tx_queue_params {
+ int aifs;
+ int cw_min;
+ int cw_max;
+ int burst_time;
+};
+
+/**
+ * struct ieee80211_tx_queue_stats_data - transmit queue statistics
+ *
+ * @len: number of packets in queue
+ * @limit: queue length limit
+ * @count: number of frames sent
+ */
+struct ieee80211_tx_queue_stats_data {
+ unsigned int len;
+ unsigned int limit;
+ unsigned int count;
+};
+
+/**
+ * enum ieee80211_tx_queue - transmit queue number
+ *
+ * These constants are used with some callbacks that take a
+ * queue number to set parameters for a queue.
+ *
+ * @IEEE80211_TX_QUEUE_DATA0: data queue 0
+ * @IEEE80211_TX_QUEUE_DATA1: data queue 1
+ * @IEEE80211_TX_QUEUE_DATA2: data queue 2
+ * @IEEE80211_TX_QUEUE_DATA3: data queue 3
+ * @IEEE80211_TX_QUEUE_DATA4: data queue 4
+ * @IEEE80211_TX_QUEUE_SVP: ??
+ * @NUM_TX_DATA_QUEUES: number of data queues
+ * @IEEE80211_TX_QUEUE_AFTER_BEACON: transmit queue for frames to be
+ * sent after a beacon
+ * @IEEE80211_TX_QUEUE_BEACON: transmit queue for beacon frames
+ */
+enum ieee80211_tx_queue {
+ IEEE80211_TX_QUEUE_DATA0,
+ IEEE80211_TX_QUEUE_DATA1,
+ IEEE80211_TX_QUEUE_DATA2,
+ IEEE80211_TX_QUEUE_DATA3,
+ IEEE80211_TX_QUEUE_DATA4,
+ IEEE80211_TX_QUEUE_SVP,
+
+ NUM_TX_DATA_QUEUES,
+
+/* due to stupidity in the sub-ioctl userspace interface, the items in
+ * this struct need to have fixed values. As soon as it is removed, we can
+ * fix these entries. */
+ IEEE80211_TX_QUEUE_AFTER_BEACON = 6,
+ IEEE80211_TX_QUEUE_BEACON = 7
+};
+
+struct ieee80211_tx_queue_stats {
+ struct ieee80211_tx_queue_stats_data data[NUM_TX_DATA_QUEUES];
+};
+
+struct ieee80211_low_level_stats {
+ unsigned int dot11ACKFailureCount;
+ unsigned int dot11RTSFailureCount;
+ unsigned int dot11FCSErrorCount;
+ unsigned int dot11RTSSuccessCount;
+};
+
+/* Transmit control fields. This data structure is passed to low-level driver
+ * with each TX frame. The low-level driver is responsible for configuring
+ * the hardware to use given values (depending on what is supported). */
+
+struct ieee80211_tx_control {
+ int tx_rate; /* Transmit rate, given as the hw specific value for the
+ * rate (from struct ieee80211_rate) */
+ int rts_cts_rate; /* Transmit rate for RTS/CTS frame, given as the hw
+ * specific value for the rate (from
+ * struct ieee80211_rate) */
+
+#define IEEE80211_TXCTL_REQ_TX_STATUS (1<<0)/* request TX status callback for
+ * this frame */
+#define IEEE80211_TXCTL_DO_NOT_ENCRYPT (1<<1) /* send this frame without
+ * encryption; e.g., for EAPOL
+ * frames */
+#define IEEE80211_TXCTL_USE_RTS_CTS (1<<2) /* use RTS-CTS before sending
+ * frame */
+#define IEEE80211_TXCTL_USE_CTS_PROTECT (1<<3) /* use CTS protection for the
+ * frame (e.g., for combined
+ * 802.11g / 802.11b networks) */
+#define IEEE80211_TXCTL_NO_ACK (1<<4) /* tell the low level not to
+ * wait for an ack */
+#define IEEE80211_TXCTL_RATE_CTRL_PROBE (1<<5)
+#define IEEE80211_TXCTL_CLEAR_DST_MASK (1<<6)
+#define IEEE80211_TXCTL_REQUEUE (1<<7)
+#define IEEE80211_TXCTL_FIRST_FRAGMENT (1<<8) /* this is a first fragment of
+ * the frame */
+#define IEEE80211_TXCTL_LONG_RETRY_LIMIT (1<<10) /* this frame should be send
+ * using the through
+ * set_retry_limit configured
+ * long retry value */
+ u32 flags; /* tx control flags defined
+ * above */
+ u8 key_idx; /* keyidx from hw->set_key(), undefined if
+ * IEEE80211_TXCTL_DO_NOT_ENCRYPT is set */
+ u8 retry_limit; /* 1 = only first attempt, 2 = one retry, ..
+ * This could be used when set_retry_limit
+ * is not implemented by the driver */
+ u8 power_level; /* per-packet transmit power level, in dBm */
+ u8 antenna_sel_tx; /* 0 = default/diversity, 1 = Ant0, 2 = Ant1 */
+ u8 icv_len; /* length of the ICV/MIC field in octets */
+ u8 iv_len; /* length of the IV field in octets */
+ u8 queue; /* hardware queue to use for this frame;
+ * 0 = highest, hw->queues-1 = lowest */
+ struct ieee80211_rate *rate; /* internal 80211.o rate */
+ struct ieee80211_rate *rts_rate; /* internal 80211.o rate
+ * for RTS/CTS */
+ int alt_retry_rate; /* retry rate for the last retries, given as the
+ * hw specific value for the rate (from
+ * struct ieee80211_rate). To be used to limit
+ * packet dropping when probing higher rates, if hw
+ * supports multiple retry rates. -1 = not used */
+ int type; /* internal */
+ int ifindex; /* internal */
+};
+
+
+/**
+ * enum mac80211_rx_flags - receive flags
+ *
+ * These flags are used with the @flag member of &struct ieee80211_rx_status.
+ * @RX_FLAG_MMIC_ERROR: Michael MIC error was reported on this frame.
+ * Use together with %RX_FLAG_MMIC_STRIPPED.
+ * @RX_FLAG_DECRYPTED: This frame was decrypted in hardware.
+ * @RX_FLAG_RADIOTAP: This frame starts with a radiotap header.
+ * @RX_FLAG_MMIC_STRIPPED: the Michael MIC is stripped off this frame,
+ * verification has been done by the hardware.
+ * @RX_FLAG_IV_STRIPPED: The IV/ICV are stripped from this frame.
+ * If this flag is set, the stack cannot do any replay detection
+ * hence the driver or hardware will have to do that.
+ * @RX_FLAG_FAILED_FCS_CRC: Set this flag if the FCS check failed on
+ * the frame.
+ * @RX_FLAG_FAILED_PLCP_CRC: Set this flag if the PCLP check failed on
+ * the frame.
+ */
+enum mac80211_rx_flags {
+ RX_FLAG_MMIC_ERROR = 1<<0,
+ RX_FLAG_DECRYPTED = 1<<1,
+ RX_FLAG_RADIOTAP = 1<<2,
+ RX_FLAG_MMIC_STRIPPED = 1<<3,
+ RX_FLAG_IV_STRIPPED = 1<<4,
+ RX_FLAG_FAILED_FCS_CRC = 1<<5,
+ RX_FLAG_FAILED_PLCP_CRC = 1<<6,
+};
+
+/**
+ * struct ieee80211_rx_status - receive status
+ *
+ * The low-level driver should provide this information (the subset
+ * supported by hardware) to the 802.11 code with each received
+ * frame.
+ * @mactime: MAC timestamp as defined by 802.11
+ * @freq: frequency the radio was tuned to when receiving this frame, in MHz
+ * @channel: channel the radio was tuned to
+ * @phymode: active PHY mode
+ * @ssi: signal strength when receiving this frame
+ * @signal: used as 'qual' in statistics reporting
+ * @noise: PHY noise when receiving this frame
+ * @antenna: antenna used
+ * @rate: data rate
+ * @flag: %RX_FLAG_*
+ */
+struct ieee80211_rx_status {
+ u64 mactime;
+ int freq;
+ int channel;
+ enum ieee80211_phymode phymode;
+ int ssi;
+ int signal;
+ int noise;
+ int antenna;
+ int rate;
+ int flag;
+};
+
+/**
+ * enum ieee80211_tx_status_flags - transmit status flags
+ *
+ * Status flags to indicate various transmit conditions.
+ *
+ * @IEEE80211_TX_STATUS_TX_FILTERED: The frame was not transmitted
+ * because the destination STA was in powersave mode.
+ *
+ * @IEEE80211_TX_STATUS_ACK: Frame was acknowledged
+ */
+enum ieee80211_tx_status_flags {
+ IEEE80211_TX_STATUS_TX_FILTERED = 1<<0,
+ IEEE80211_TX_STATUS_ACK = 1<<1,
+};
+
+/**
+ * struct ieee80211_tx_status - transmit status
+ *
+ * As much information as possible should be provided for each transmitted
+ * frame with ieee80211_tx_status().
+ *
+ * @control: a copy of the &struct ieee80211_tx_control passed to the driver
+ * in the tx() callback.
+ *
+ * @flags: transmit status flags, defined above
+ *
+ * @ack_signal: signal strength of the ACK frame
+ *
+ * @excessive_retries: set to 1 if the frame was retried many times
+ * but not acknowledged
+ *
+ * @retry_count: number of retries
+ *
+ * @queue_length: ?? REMOVE
+ * @queue_number: ?? REMOVE
+ */
+struct ieee80211_tx_status {
+ struct ieee80211_tx_control control;
+ u8 flags;
+ bool excessive_retries;
+ u8 retry_count;
+ int ack_signal;
+ int queue_length;
+ int queue_number;
+};
+
+/**
+ * enum ieee80211_conf_flags - configuration flags
+ *
+ * Flags to define PHY configuration options
+ *
+ * @IEEE80211_CONF_SHORT_SLOT_TIME: use 802.11g short slot time
+ * @IEEE80211_CONF_RADIOTAP: add radiotap header at receive time (if supported)
+ *
+ */
+enum ieee80211_conf_flags {
+ IEEE80211_CONF_SHORT_SLOT_TIME = 1<<0,
+ IEEE80211_CONF_RADIOTAP = 1<<1,
+};
+
+/**
+ * struct ieee80211_conf - configuration of the device
+ *
+ * This struct indicates how the driver shall configure the hardware.
+ *
+ * @radio_enabled: when zero, driver is required to switch off the radio.
+ * TODO make a flag
+ * @channel: IEEE 802.11 channel number
+ * @freq: frequency in MHz
+ * @channel_val: hardware specific channel value for the channel
+ * @phymode: PHY mode to activate (REMOVE)
+ * @chan: channel to switch to, pointer to the channel information
+ * @mode: pointer to mode definition
+ * @regulatory_domain: ??
+ * @beacon_int: beacon interval (TODO make interface config)
+ * @flags: configuration flags defined above
+ * @power_level: transmit power limit for current regulatory domain in dBm
+ * @antenna_max: maximum antenna gain
+ * @antenna_sel_tx: transmit antenna selection, 0: default/diversity,
+ * 1/2: antenna 0/1
+ * @antenna_sel_rx: receive antenna selection, like @antenna_sel_tx
+ */
+struct ieee80211_conf {
+ int channel; /* IEEE 802.11 channel number */
+ int freq; /* MHz */
+ int channel_val; /* hw specific value for the channel */
+
+ enum ieee80211_phymode phymode;
+ struct ieee80211_channel *chan;
+ struct ieee80211_hw_mode *mode;
+ unsigned int regulatory_domain;
+ int radio_enabled;
+
+ int beacon_int;
+ u32 flags;
+ u8 power_level;
+ u8 antenna_max;
+ u8 antenna_sel_tx;
+ u8 antenna_sel_rx;
+};
+
+/**
+ * enum ieee80211_if_types - types of 802.11 network interfaces
+ *
+ * @IEEE80211_IF_TYPE_INVALID: invalid interface type, not used
+ * by mac80211 itself
+ * @IEEE80211_IF_TYPE_AP: interface in AP mode.
+ * @IEEE80211_IF_TYPE_MGMT: special interface for communication with hostap
+ * daemon. Drivers should never see this type.
+ * @IEEE80211_IF_TYPE_STA: interface in STA (client) mode.
+ * @IEEE80211_IF_TYPE_IBSS: interface in IBSS (ad-hoc) mode.
+ * @IEEE80211_IF_TYPE_MNTR: interface in monitor (rfmon) mode.
+ * @IEEE80211_IF_TYPE_WDS: interface in WDS mode.
+ * @IEEE80211_IF_TYPE_VLAN: VLAN interface bound to an AP, drivers
+ * will never see this type.
+ */
+enum ieee80211_if_types {
+ IEEE80211_IF_TYPE_INVALID,
+ IEEE80211_IF_TYPE_AP,
+ IEEE80211_IF_TYPE_STA,
+ IEEE80211_IF_TYPE_IBSS,
+ IEEE80211_IF_TYPE_MNTR,
+ IEEE80211_IF_TYPE_WDS,
+ IEEE80211_IF_TYPE_VLAN,
+};
+
+/**
+ * struct ieee80211_if_init_conf - initial configuration of an interface
+ *
+ * @if_id: internal interface ID. This number has no particular meaning to
+ * drivers and the only allowed usage is to pass it to
+ * ieee80211_beacon_get() and ieee80211_get_buffered_bc() functions.
+ * This field is not valid for monitor interfaces
+ * (interfaces of %IEEE80211_IF_TYPE_MNTR type).
+ * @type: one of &enum ieee80211_if_types constants. Determines the type of
+ * added/removed interface.
+ * @mac_addr: pointer to MAC address of the interface. This pointer is valid
+ * until the interface is removed (i.e. it cannot be used after
+ * remove_interface() callback was called for this interface).
+ *
+ * This structure is used in add_interface() and remove_interface()
+ * callbacks of &struct ieee80211_hw.
+ *
+ * When you allow multiple interfaces to be added to your PHY, take care
+ * that the hardware can actually handle multiple MAC addresses. However,
+ * also take care that when there's no interface left with mac_addr != %NULL
+ * you remove the MAC address from the device to avoid acknowledging packets
+ * in pure monitor mode.
+ */
+struct ieee80211_if_init_conf {
+ int if_id;
+ enum ieee80211_if_types type;
+ void *mac_addr;
+};
+
+/**
+ * struct ieee80211_if_conf - configuration of an interface
+ *
+ * @type: type of the interface. This is always the same as was specified in
+ * &struct ieee80211_if_init_conf. The type of an interface never changes
+ * during the life of the interface; this field is present only for
+ * convenience.
+ * @bssid: BSSID of the network we are associated to/creating.
+ * @ssid: used (together with @ssid_len) by drivers for hardware that
+ * generate beacons independently. The pointer is valid only during the
+ * config_interface() call, so copy the value somewhere if you need
+ * it.
+ * @ssid_len: length of the @ssid field.
+ * @beacon: beacon template. Valid only if @host_gen_beacon_template in
+ * &struct ieee80211_hw is set. The driver is responsible of freeing
+ * the sk_buff.
+ * @beacon_control: tx_control for the beacon template, this field is only
+ * valid when the @beacon field was set.
+ *
+ * This structure is passed to the config_interface() callback of
+ * &struct ieee80211_hw.
+ */
+struct ieee80211_if_conf {
+ int type;
+ u8 *bssid;
+ u8 *ssid;
+ size_t ssid_len;
+ struct sk_buff *beacon;
+ struct ieee80211_tx_control *beacon_control;
+};
+
+/**
+ * enum ieee80211_key_alg - key algorithm
+ * @ALG_WEP: WEP40 or WEP104
+ * @ALG_TKIP: TKIP
+ * @ALG_CCMP: CCMP (AES)
+ */
+enum ieee80211_key_alg {
+ ALG_WEP,
+ ALG_TKIP,
+ ALG_CCMP,
+};
+
+
+/**
+ * enum ieee80211_key_flags - key flags
+ *
+ * These flags are used for communication about keys between the driver
+ * and mac80211, with the @flags parameter of &struct ieee80211_key_conf.
+ *
+ * @IEEE80211_KEY_FLAG_WMM_STA: Set by mac80211, this flag indicates
+ * that the STA this key will be used with could be using QoS.
+ * @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the
+ * driver to indicate that it requires IV generation for this
+ * particular key.
+ * @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by
+ * the driver for a TKIP key if it requires Michael MIC
+ * generation in software.
+ */
+enum ieee80211_key_flags {
+ IEEE80211_KEY_FLAG_WMM_STA = 1<<0,
+ IEEE80211_KEY_FLAG_GENERATE_IV = 1<<1,
+ IEEE80211_KEY_FLAG_GENERATE_MMIC= 1<<2,
+};
+
+/**
+ * struct ieee80211_key_conf - key information
+ *
+ * This key information is given by mac80211 to the driver by
+ * the set_key() callback in &struct ieee80211_ops.
+ *
+ * @hw_key_idx: To be set by the driver, this is the key index the driver
+ * wants to be given when a frame is transmitted and needs to be
+ * encrypted in hardware.
+ * @alg: The key algorithm.
+ * @flags: key flags, see &enum ieee80211_key_flags.
+ * @keyidx: the key index (0-3)
+ * @keylen: key material length
+ * @key: key material
+ */
+struct ieee80211_key_conf {
+ enum ieee80211_key_alg alg;
+ u8 hw_key_idx;
+ u8 flags;
+ s8 keyidx;
+ u8 keylen;
+ u8 key[0];
+};
+
+#define IEEE80211_SEQ_COUNTER_RX 0
+#define IEEE80211_SEQ_COUNTER_TX 1
+
+/**
+ * enum set_key_cmd - key command
+ *
+ * Used with the set_key() callback in &struct ieee80211_ops, this
+ * indicates whether a key is being removed or added.
+ *
+ * @SET_KEY: a key is set
+ * @DISABLE_KEY: a key must be disabled
+ */
+enum set_key_cmd {
+ SET_KEY, DISABLE_KEY,
+};
+
+/**
+ * enum sta_notify_cmd - sta notify command
+ *
+ * Used with the sta_notify() callback in &struct ieee80211_ops, this
+ * indicates addition and removal of a station to station table
+ *
+ * @STA_NOTIFY_ADD: a station was added to the station table
+ * @STA_NOTIFY_REMOVE: a station being removed from the station table
+ */
+enum sta_notify_cmd {
+ STA_NOTIFY_ADD, STA_NOTIFY_REMOVE
+};
+
+/**
+ * enum ieee80211_hw_flags - hardware flags
+ *
+ * These flags are used to indicate hardware capabilities to
+ * the stack. Generally, flags here should have their meaning
+ * done in a way that the simplest hardware doesn't need setting
+ * any particular flags. There are some exceptions to this rule,
+ * however, so you are advised to review these flags carefully.
+ *
+ * @IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE:
+ * The device only needs to be supplied with a beacon template.
+ * If you need the host to generate each beacon then don't use
+ * this flag and call ieee80211_beacon_get() when you need the
+ * next beacon frame. Note that if you set this flag, you must
+ * implement the set_tim() callback for powersave mode to work
+ * properly.
+ * This flag is only relevant for access-point mode.
+ *
+ * @IEEE80211_HW_RX_INCLUDES_FCS:
+ * Indicates that received frames passed to the stack include
+ * the FCS at the end.
+ *
+ * @IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING:
+ * Some wireless LAN chipsets buffer broadcast/multicast frames
+ * for power saving stations in the hardware/firmware and others
+ * rely on the host system for such buffering. This option is used
+ * to configure the IEEE 802.11 upper layer to buffer broadcast and
+ * multicast frames when there are power saving stations so that
+ * the driver can fetch them with ieee80211_get_buffered_bc(). Note
+ * that not setting this flag works properly only when the
+ * %IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE is also not set because
+ * otherwise the stack will not know when the DTIM beacon was sent.
+ *
+ * @IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED:
+ * Channels are already configured to the default regulatory domain
+ * specified in the device's EEPROM
+ */
+enum ieee80211_hw_flags {
+ IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE = 1<<0,
+ IEEE80211_HW_RX_INCLUDES_FCS = 1<<1,
+ IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING = 1<<2,
+ IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED = 1<<3,
+};
+
+/**
+ * struct ieee80211_hw - hardware information and state
+ *
+ * This structure contains the configuration and hardware
+ * information for an 802.11 PHY.
+ *
+ * @wiphy: This points to the &struct wiphy allocated for this
+ * 802.11 PHY. You must fill in the @perm_addr and @dev
+ * members of this structure using SET_IEEE80211_DEV()
+ * and SET_IEEE80211_PERM_ADDR().
+ *
+ * @conf: &struct ieee80211_conf, device configuration, don't use.
+ *
+ * @workqueue: single threaded workqueue available for driver use,
+ * allocated by mac80211 on registration and flushed on
+ * unregistration.
+ *
+ * @priv: pointer to private area that was allocated for driver use
+ * along with this structure.
+ *
+ * @flags: hardware flags, see &enum ieee80211_hw_flags.
+ *
+ * @extra_tx_headroom: headroom to reserve in each transmit skb
+ * for use by the driver (e.g. for transmit headers.)
+ *
+ * @channel_change_time: time (in microseconds) it takes to change channels.
+ *
+ * @max_rssi: Maximum value for ssi in RX information, use
+ * negative numbers for dBm and 0 to indicate no support.
+ *
+ * @max_signal: like @max_rssi, but for the signal value.
+ *
+ * @max_noise: like @max_rssi, but for the noise value.
+ *
+ * @queues: number of available hardware transmit queues for
+ * data packets. WMM/QoS requires at least four.
+ */
+struct ieee80211_hw {
+ struct ieee80211_conf conf;
+ struct wiphy *wiphy;
+ struct workqueue_struct *workqueue;
+ void *priv;
+ u32 flags;
+ unsigned int extra_tx_headroom;
+ int channel_change_time;
+ u8 queues;
+ s8 max_rssi;
+ s8 max_signal;
+ s8 max_noise;
+};
+
+/**
+ * SET_IEEE80211_DEV - set device for 802.11 hardware
+ *
+ * @hw: the &struct ieee80211_hw to set the device for
+ * @dev: the &struct device of this 802.11 device
+ */
+static inline void SET_IEEE80211_DEV(struct ieee80211_hw *hw, struct device *dev)
+{
+ set_wiphy_dev(hw->wiphy, dev);
+}
+
+/**
+ * SET_IEEE80211_PERM_ADDR - set the permanenet MAC address for 802.11 hardware
+ *
+ * @hw: the &struct ieee80211_hw to set the MAC address for
+ * @addr: the address to set
+ */
+static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, u8 *addr)
+{
+ memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN);
+}
+
+/**
+ * DOC: Hardware crypto acceleration
+ *
+ * mac80211 is capable of taking advantage of many hardware
+ * acceleration designs for encryption and decryption operations.
+ *
+ * The set_key() callback in the &struct ieee80211_ops for a given
+ * device is called to enable hardware acceleration of encryption and
+ * decryption. The callback takes an @address parameter that will be
+ * the broadcast address for default keys, the other station's hardware
+ * address for individual keys or the zero address for keys that will
+ * be used only for transmission.
+ * Multiple transmission keys with the same key index may be used when
+ * VLANs are configured for an access point.
+ *
+ * The @local_address parameter will always be set to our own address,
+ * this is only relevant if you support multiple local addresses.
+ *
+ * When transmitting, the TX control data will use the @hw_key_idx
+ * selected by the driver by modifying the &struct ieee80211_key_conf
+ * pointed to by the @key parameter to the set_key() function.
+ *
+ * The set_key() call for the %SET_KEY command should return 0 if
+ * the key is now in use, -%EOPNOTSUPP or -%ENOSPC if it couldn't be
+ * added; if you return 0 then hw_key_idx must be assigned to the
+ * hardware key index, you are free to use the full u8 range.
+ *
+ * When the cmd is %DISABLE_KEY then it must succeed.
+ *
+ * Note that it is permissible to not decrypt a frame even if a key
+ * for it has been uploaded to hardware, the stack will not make any
+ * decision based on whether a key has been uploaded or not but rather
+ * based on the receive flags.
+ *
+ * The &struct ieee80211_key_conf structure pointed to by the @key
+ * parameter is guaranteed to be valid until another call to set_key()
+ * removes it, but it can only be used as a cookie to differentiate
+ * keys.
+ */
+
+/**
+ * DOC: Frame filtering
+ *
+ * mac80211 requires to see many management frames for proper
+ * operation, and users may want to see many more frames when
+ * in monitor mode. However, for best CPU usage and power consumption,
+ * having as few frames as possible percolate through the stack is
+ * desirable. Hence, the hardware should filter as much as possible.
+ *
+ * To achieve this, mac80211 uses filter flags (see below) to tell
+ * the driver's configure_filter() function which frames should be
+ * passed to mac80211 and which should be filtered out.
+ *
+ * The configure_filter() callback is invoked with the parameters
+ * @mc_count and @mc_list for the combined multicast address list
+ * of all virtual interfaces, @changed_flags telling which flags
+ * were changed and @total_flags with the new flag states.
+ *
+ * If your device has no multicast address filters your driver will
+ * need to check both the %FIF_ALLMULTI flag and the @mc_count
+ * parameter to see whether multicast frames should be accepted
+ * or dropped.
+ *
+ * All unsupported flags in @total_flags must be cleared, i.e. you
+ * should clear all bits except those you honoured.
+ */
+
+/**
+ * enum ieee80211_filter_flags - hardware filter flags
+ *
+ * These flags determine what the filter in hardware should be
+ * programmed to let through and what should not be passed to the
+ * stack. It is always safe to pass more frames than requested,
+ * but this has negative impact on power consumption.
+ *
+ * @FIF_PROMISC_IN_BSS: promiscuous mode within your BSS,
+ * think of the BSS as your network segment and then this corresponds
+ * to the regular ethernet device promiscuous mode.
+ *
+ * @FIF_ALLMULTI: pass all multicast frames, this is used if requested
+ * by the user or if the hardware is not capable of filtering by
+ * multicast address.
+ *
+ * @FIF_FCSFAIL: pass frames with failed FCS (but you need to set the
+ * %RX_FLAG_FAILED_FCS_CRC for them)
+ *
+ * @FIF_PLCPFAIL: pass frames with failed PLCP CRC (but you need to set
+ * the %RX_FLAG_FAILED_PLCP_CRC for them
+ *
+ * @FIF_BCN_PRBRESP_PROMISC: This flag is set during scanning to indicate
+ * to the hardware that it should not filter beacons or probe responses
+ * by BSSID. Filtering them can greatly reduce the amount of processing
+ * mac80211 needs to do and the amount of CPU wakeups, so you should
+ * honour this flag if possible.
+ *
+ * @FIF_CONTROL: pass control frames, if PROMISC_IN_BSS is not set then
+ * only those addressed to this station
+ *
+ * @FIF_OTHER_BSS: pass frames destined to other BSSes
+ */
+enum ieee80211_filter_flags {
+ FIF_PROMISC_IN_BSS = 1<<0,
+ FIF_ALLMULTI = 1<<1,
+ FIF_FCSFAIL = 1<<2,
+ FIF_PLCPFAIL = 1<<3,
+ FIF_BCN_PRBRESP_PROMISC = 1<<4,
+ FIF_CONTROL = 1<<5,
+ FIF_OTHER_BSS = 1<<6,
+};
+
+/**
+ * enum ieee80211_erp_change_flags - erp change flags
+ *
+ * These flags are used with the erp_ie_changed() callback in
+ * &struct ieee80211_ops to indicate which parameter(s) changed.
+ * @IEEE80211_ERP_CHANGE_PROTECTION: protection changed
+ * @IEEE80211_ERP_CHANGE_PREAMBLE: barker preamble mode changed
+ */
+enum ieee80211_erp_change_flags {
+ IEEE80211_ERP_CHANGE_PROTECTION = 1<<0,
+ IEEE80211_ERP_CHANGE_PREAMBLE = 1<<1,
+};
+
+
+/**
+ * struct ieee80211_ops - callbacks from mac80211 to the driver
+ *
+ * This structure contains various callbacks that the driver may
+ * handle or, in some cases, must handle, for example to configure
+ * the hardware to a new channel or to transmit a frame.
+ *
+ * @tx: Handler that 802.11 module calls for each transmitted frame.
+ * skb contains the buffer starting from the IEEE 802.11 header.
+ * The low-level driver should send the frame out based on
+ * configuration in the TX control data. Must be implemented and
+ * atomic.
+ *
+ * @start: Called before the first netdevice attached to the hardware
+ * is enabled. This should turn on the hardware and must turn on
+ * frame reception (for possibly enabled monitor interfaces.)
+ * Returns negative error codes, these may be seen in userspace,
+ * or zero.
+ * When the device is started it should not have a MAC address
+ * to avoid acknowledging frames before a non-monitor device
+ * is added.
+ * Must be implemented.
+ *
+ * @stop: Called after last netdevice attached to the hardware
+ * is disabled. This should turn off the hardware (at least
+ * it must turn off frame reception.)
+ * May be called right after add_interface if that rejects
+ * an interface.
+ * Must be implemented.
+ *
+ * @add_interface: Called when a netdevice attached to the hardware is
+ * enabled. Because it is not called for monitor mode devices, @open
+ * and @stop must be implemented.
+ * The driver should perform any initialization it needs before
+ * the device can be enabled. The initial configuration for the
+ * interface is given in the conf parameter.
+ * The callback may refuse to add an interface by returning a
+ * negative error code (which will be seen in userspace.)
+ * Must be implemented.
+ *
+ * @remove_interface: Notifies a driver that an interface is going down.
+ * The @stop callback is called after this if it is the last interface
+ * and no monitor interfaces are present.
+ * When all interfaces are removed, the MAC address in the hardware
+ * must be cleared so the device no longer acknowledges packets,
+ * the mac_addr member of the conf structure is, however, set to the
+ * MAC address of the device going away.
+ * Hence, this callback must be implemented.
+ *
+ * @config: Handler for configuration requests. IEEE 802.11 code calls this
+ * function to change hardware configuration, e.g., channel.
+ *
+ * @config_interface: Handler for configuration requests related to interfaces
+ * (e.g. BSSID changes.)
+ *
+ * @configure_filter: Configure the device's RX filter.
+ * See the section "Frame filtering" for more information.
+ * This callback must be implemented and atomic.
+ *
+ * @set_tim: Set TIM bit. If the hardware/firmware takes care of beacon
+ * generation (that is, %IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE is set)
+ * mac80211 calls this function when a TIM bit must be set or cleared
+ * for a given AID. Must be atomic.
+ *
+ * @set_key: See the section "Hardware crypto acceleration"
+ * This callback can sleep, and is only called between add_interface
+ * and remove_interface calls, i.e. while the interface with the
+ * given local_address is enabled.
+ *
+ * @set_ieee8021x: Enable/disable IEEE 802.1X. This item requests wlan card
+ * to pass unencrypted EAPOL-Key frames even when encryption is
+ * configured. If the wlan card does not require such a configuration,
+ * this function pointer can be set to NULL.
+ *
+ * @set_port_auth: Set port authorization state (IEEE 802.1X PAE) to be
+ * authorized (@authorized=1) or unauthorized (=0). This function can be
+ * used if the wlan hardware or low-level driver implements PAE.
+ * mac80211 will filter frames based on authorization state in any case,
+ * so this function pointer can be NULL if low-level driver does not
+ * require event notification about port state changes.
+ *
+ * @hw_scan: Ask the hardware to service the scan request, no need to start
+ * the scan state machine in stack.
+ *
+ * @get_stats: return low-level statistics
+ *
+ * @set_privacy_invoked: For devices that generate their own beacons and probe
+ * response or association responses this updates the state of privacy_invoked
+ * returns 0 for success or an error number.
+ *
+ * @get_sequence_counter: For devices that have internal sequence counters this
+ * callback allows mac80211 to access the current value of a counter.
+ * This callback seems not well-defined, tell us if you need it.
+ *
+ * @set_rts_threshold: Configuration of RTS threshold (if device needs it)
+ *
+ * @set_frag_threshold: Configuration of fragmentation threshold. Assign this if
+ * the device does fragmentation by itself; if this method is assigned then
+ * the stack will not do fragmentation.
+ *
+ * @set_retry_limit: Configuration of retry limits (if device needs it)
+ *
+ * @sta_notify: Notifies low level driver about addition or removal
+ * of assocaited station or AP.
+ *
+ * @erp_ie_changed: Handle ERP IE change notifications. Must be atomic.
+ *
+ * @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max),
+ * bursting) for a hardware TX queue. The @queue parameter uses the
+ * %IEEE80211_TX_QUEUE_* constants. Must be atomic.
+ *
+ * @get_tx_stats: Get statistics of the current TX queue status. This is used
+ * to get number of currently queued packets (queue length), maximum queue
+ * size (limit), and total number of packets sent using each TX queue
+ * (count). This information is used for WMM to find out which TX
+ * queues have room for more packets and by hostapd to provide
+ * statistics about the current queueing state to external programs.
+ *
+ * @get_tsf: Get the current TSF timer value from firmware/hardware. Currently,
+ * this is only used for IBSS mode debugging and, as such, is not a
+ * required function. Must be atomic.
+ *
+ * @reset_tsf: Reset the TSF timer and allow firmware/hardware to synchronize
+ * with other STAs in the IBSS. This is only used in IBSS mode. This
+ * function is optional if the firmware/hardware takes full care of
+ * TSF synchronization.
+ *
+ * @beacon_update: Setup beacon data for IBSS beacons. Unlike access point,
+ * IBSS uses a fixed beacon frame which is configured using this
+ * function.
+ * If the driver returns success (0) from this callback, it owns
+ * the skb. That means the driver is responsible to kfree_skb() it.
+ * The control structure is not dynamically allocated. That means the
+ * driver does not own the pointer and if it needs it somewhere
+ * outside of the context of this function, it must copy it
+ * somewhere else.
+ * This handler is required only for IBSS mode.
+ *
+ * @tx_last_beacon: Determine whether the last IBSS beacon was sent by us.
+ * This is needed only for IBSS mode and the result of this function is
+ * used to determine whether to reply to Probe Requests.
+ */
+struct ieee80211_ops {
+ int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_tx_control *control);
+ int (*start)(struct ieee80211_hw *hw);
+ void (*stop)(struct ieee80211_hw *hw);
+ int (*add_interface)(struct ieee80211_hw *hw,
+ struct ieee80211_if_init_conf *conf);
+ void (*remove_interface)(struct ieee80211_hw *hw,
+ struct ieee80211_if_init_conf *conf);
+ int (*config)(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
+ int (*config_interface)(struct ieee80211_hw *hw,
+ int if_id, struct ieee80211_if_conf *conf);
+ void (*configure_filter)(struct ieee80211_hw *hw,
+ unsigned int changed_flags,
+ unsigned int *total_flags,
+ int mc_count, struct dev_addr_list *mc_list);
+ int (*set_tim)(struct ieee80211_hw *hw, int aid, int set);
+ int (*set_key)(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+ const u8 *local_address, const u8 *address,
+ struct ieee80211_key_conf *key);
+ int (*set_ieee8021x)(struct ieee80211_hw *hw, int use_ieee8021x);
+ int (*set_port_auth)(struct ieee80211_hw *hw, u8 *addr,
+ int authorized);
+ int (*hw_scan)(struct ieee80211_hw *hw, u8 *ssid, size_t len);
+ int (*get_stats)(struct ieee80211_hw *hw,
+ struct ieee80211_low_level_stats *stats);
+ int (*set_privacy_invoked)(struct ieee80211_hw *hw,
+ int privacy_invoked);
+ int (*get_sequence_counter)(struct ieee80211_hw *hw,
+ u8* addr, u8 keyidx, u8 txrx,
+ u32* iv32, u16* iv16);
+ int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value);
+ int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value);
+ int (*set_retry_limit)(struct ieee80211_hw *hw,
+ u32 short_retry, u32 long_retr);
+ void (*sta_notify)(struct ieee80211_hw *hw, int if_id,
+ enum sta_notify_cmd, const u8 *addr);
+ void (*erp_ie_changed)(struct ieee80211_hw *hw, u8 changes,
+ int cts_protection, int preamble);
+ int (*conf_tx)(struct ieee80211_hw *hw, int queue,
+ const struct ieee80211_tx_queue_params *params);
+ int (*get_tx_stats)(struct ieee80211_hw *hw,
+ struct ieee80211_tx_queue_stats *stats);
+ u64 (*get_tsf)(struct ieee80211_hw *hw);
+ void (*reset_tsf)(struct ieee80211_hw *hw);
+ int (*beacon_update)(struct ieee80211_hw *hw,
+ struct sk_buff *skb,
+ struct ieee80211_tx_control *control);
+ int (*tx_last_beacon)(struct ieee80211_hw *hw);
+};
+
+/**
+ * ieee80211_alloc_hw - Allocate a new hardware device
+ *
+ * This must be called once for each hardware device. The returned pointer
+ * must be used to refer to this device when calling other functions.
+ * mac80211 allocates a private data area for the driver pointed to by
+ * @priv in &struct ieee80211_hw, the size of this area is given as
+ * @priv_data_len.
+ *
+ * @priv_data_len: length of private data
+ * @ops: callbacks for this device
+ */
+struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
+ const struct ieee80211_ops *ops);
+
+/**
+ * ieee80211_register_hw - Register hardware device
+ *
+ * You must call this function before any other functions
+ * except ieee80211_register_hwmode.
+ *
+ * @hw: the device to register as returned by ieee80211_alloc_hw()
+ */
+int ieee80211_register_hw(struct ieee80211_hw *hw);
+
+#ifdef CONFIG_MAC80211_LEDS
+extern char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw);
+extern char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw);
+extern char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw);
+#endif
+/**
+ * ieee80211_get_tx_led_name - get name of TX LED
+ *
+ * mac80211 creates a transmit LED trigger for each wireless hardware
+ * that can be used to drive LEDs if your driver registers a LED device.
+ * This function returns the name (or %NULL if not configured for LEDs)
+ * of the trigger so you can automatically link the LED device.
+ *
+ * @hw: the hardware to get the LED trigger name for
+ */
+static inline char *ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
+{
+#ifdef CONFIG_MAC80211_LEDS
+ return __ieee80211_get_tx_led_name(hw);
+#else
+ return NULL;
+#endif
+}
+
+/**
+ * ieee80211_get_rx_led_name - get name of RX LED
+ *
+ * mac80211 creates a receive LED trigger for each wireless hardware
+ * that can be used to drive LEDs if your driver registers a LED device.
+ * This function returns the name (or %NULL if not configured for LEDs)
+ * of the trigger so you can automatically link the LED device.
+ *
+ * @hw: the hardware to get the LED trigger name for
+ */
+static inline char *ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
+{
+#ifdef CONFIG_MAC80211_LEDS
+ return __ieee80211_get_rx_led_name(hw);
+#else
+ return NULL;
+#endif
+}
+
+static inline char *ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
+{
+#ifdef CONFIG_MAC80211_LEDS
+ return __ieee80211_get_assoc_led_name(hw);
+#else
+ return NULL;
+#endif
+}
+
+
+/* Register a new hardware PHYMODE capability to the stack. */
+int ieee80211_register_hwmode(struct ieee80211_hw *hw,
+ struct ieee80211_hw_mode *mode);
+
+/**
+ * ieee80211_unregister_hw - Unregister a hardware device
+ *
+ * This function instructs mac80211 to free allocated resources
+ * and unregister netdevices from the networking subsystem.
+ *
+ * @hw: the hardware to unregister
+ */
+void ieee80211_unregister_hw(struct ieee80211_hw *hw);
+
+/**
+ * ieee80211_free_hw - free hardware descriptor
+ *
+ * This function frees everything that was allocated, including the
+ * private data for the driver. You must call ieee80211_unregister_hw()
+ * before calling this function
+ *
+ * @hw: the hardware to free
+ */
+void ieee80211_free_hw(struct ieee80211_hw *hw);
+
+/* trick to avoid symbol clashes with the ieee80211 subsystem */
+void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_rx_status *status);
+
+/**
+ * ieee80211_rx - receive frame
+ *
+ * Use this function to hand received frames to mac80211. The receive
+ * buffer in @skb must start with an IEEE 802.11 header or a radiotap
+ * header if %RX_FLAG_RADIOTAP is set in the @status flags.
+ *
+ * This function may not be called in IRQ context.
+ *
+ * @hw: the hardware this frame came in on
+ * @skb: the buffer to receive, owned by mac80211 after this call
+ * @status: status of this frame; the status pointer need not be valid
+ * after this function returns
+ */
+static inline void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_rx_status *status)
+{
+ __ieee80211_rx(hw, skb, status);
+}
+
+/**
+ * ieee80211_rx_irqsafe - receive frame
+ *
+ * Like ieee80211_rx() but can be called in IRQ context
+ * (internally defers to a workqueue.)
+ *
+ * @hw: the hardware this frame came in on
+ * @skb: the buffer to receive, owned by mac80211 after this call
+ * @status: status of this frame; the status pointer need not be valid
+ * after this function returns and is not freed by mac80211,
+ * it is recommended that it points to a stack area
+ */
+void ieee80211_rx_irqsafe(struct ieee80211_hw *hw,
+ struct sk_buff *skb,
+ struct ieee80211_rx_status *status);
+
+/**
+ * ieee80211_tx_status - transmit status callback
+ *
+ * Call this function for all transmitted frames after they have been
+ * transmitted. It is permissible to not call this function for
+ * multicast frames but this can affect statistics.
+ *
+ * @hw: the hardware the frame was transmitted by
+ * @skb: the frame that was transmitted, owned by mac80211 after this call
+ * @status: status information for this frame; the status pointer need not
+ * be valid after this function returns and is not freed by mac80211,
+ * it is recommended that it points to a stack area
+ */
+void ieee80211_tx_status(struct ieee80211_hw *hw,
+ struct sk_buff *skb,
+ struct ieee80211_tx_status *status);
+void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
+ struct sk_buff *skb,
+ struct ieee80211_tx_status *status);
+
+/**
+ * ieee80211_beacon_get - beacon generation function
+ * @hw: pointer obtained from ieee80211_alloc_hw().
+ * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @control: will be filled with information needed to send this beacon.
+ *
+ * If the beacon frames are generated by the host system (i.e., not in
+ * hardware/firmware), the low-level driver uses this function to receive
+ * the next beacon frame from the 802.11 code. The low-level is responsible
+ * for calling this function before beacon data is needed (e.g., based on
+ * hardware interrupt). Returned skb is used only once and low-level driver
+ * is responsible of freeing it.
+ */
+struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
+ int if_id,
+ struct ieee80211_tx_control *control);
+
+/**
+ * ieee80211_rts_get - RTS frame generation function
+ * @hw: pointer obtained from ieee80211_alloc_hw().
+ * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @frame: pointer to the frame that is going to be protected by the RTS.
+ * @frame_len: the frame length (in octets).
+ * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ * @rts: The buffer where to store the RTS frame.
+ *
+ * If the RTS frames are generated by the host system (i.e., not in
+ * hardware/firmware), the low-level driver uses this function to receive
+ * the next RTS frame from the 802.11 code. The low-level is responsible
+ * for calling this function before and RTS frame is needed.
+ */
+void ieee80211_rts_get(struct ieee80211_hw *hw, int if_id,
+ const void *frame, size_t frame_len,
+ const struct ieee80211_tx_control *frame_txctl,
+ struct ieee80211_rts *rts);
+
+/**
+ * ieee80211_rts_duration - Get the duration field for an RTS frame
+ * @hw: pointer obtained from ieee80211_alloc_hw().
+ * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @frame_len: the length of the frame that is going to be protected by the RTS.
+ * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ *
+ * If the RTS is generated in firmware, but the host system must provide
+ * the duration field, the low-level driver uses this function to receive
+ * the duration field value in little-endian byteorder.
+ */
+__le16 ieee80211_rts_duration(struct ieee80211_hw *hw, int if_id,
+ size_t frame_len,
+ const struct ieee80211_tx_control *frame_txctl);
+
+/**
+ * ieee80211_ctstoself_get - CTS-to-self frame generation function
+ * @hw: pointer obtained from ieee80211_alloc_hw().
+ * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @frame: pointer to the frame that is going to be protected by the CTS-to-self.
+ * @frame_len: the frame length (in octets).
+ * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ * @cts: The buffer where to store the CTS-to-self frame.
+ *
+ * If the CTS-to-self frames are generated by the host system (i.e., not in
+ * hardware/firmware), the low-level driver uses this function to receive
+ * the next CTS-to-self frame from the 802.11 code. The low-level is responsible
+ * for calling this function before and CTS-to-self frame is needed.
+ */
+void ieee80211_ctstoself_get(struct ieee80211_hw *hw, int if_id,
+ const void *frame, size_t frame_len,
+ const struct ieee80211_tx_control *frame_txctl,
+ struct ieee80211_cts *cts);
+
+/**
+ * ieee80211_ctstoself_duration - Get the duration field for a CTS-to-self frame
+ * @hw: pointer obtained from ieee80211_alloc_hw().
+ * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @frame_len: the length of the frame that is going to be protected by the CTS-to-self.
+ * @frame_txctl: &struct ieee80211_tx_control of the frame.
+ *
+ * If the CTS-to-self is generated in firmware, but the host system must provide
+ * the duration field, the low-level driver uses this function to receive
+ * the duration field value in little-endian byteorder.
+ */
+__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, int if_id,
+ size_t frame_len,
+ const struct ieee80211_tx_control *frame_txctl);
+
+/**
+ * ieee80211_generic_frame_duration - Calculate the duration field for a frame
+ * @hw: pointer obtained from ieee80211_alloc_hw().
+ * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @frame_len: the length of the frame.
+ * @rate: the rate (in 100kbps) at which the frame is going to be transmitted.
+ *
+ * Calculate the duration field of some generic frame, given its
+ * length and transmission rate (in 100kbps).
+ */
+__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, int if_id,
+ size_t frame_len,
+ int rate);
+
+/**
+ * ieee80211_get_buffered_bc - accessing buffered broadcast and multicast frames
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ * @if_id: interface ID from &struct ieee80211_if_init_conf.
+ * @control: will be filled with information needed to send returned frame.
+ *
+ * Function for accessing buffered broadcast and multicast frames. If
+ * hardware/firmware does not implement buffering of broadcast/multicast
+ * frames when power saving is used, 802.11 code buffers them in the host
+ * memory. The low-level driver uses this function to fetch next buffered
+ * frame. In most cases, this is used when generating beacon frame. This
+ * function returns a pointer to the next buffered skb or NULL if no more
+ * buffered frames are available.
+ *
+ * Note: buffered frames are returned only after DTIM beacon frame was
+ * generated with ieee80211_beacon_get() and the low-level driver must thus
+ * call ieee80211_beacon_get() first. ieee80211_get_buffered_bc() returns
+ * NULL if the previous generated beacon was not DTIM, so the low-level driver
+ * does not need to check for DTIM beacons separately and should be able to
+ * use common code for all beacons.
+ */
+struct sk_buff *
+ieee80211_get_buffered_bc(struct ieee80211_hw *hw, int if_id,
+ struct ieee80211_tx_control *control);
+
+/**
+ * ieee80211_get_hdrlen_from_skb - get header length from data
+ *
+ * Given an skb with a raw 802.11 header at the data pointer this function
+ * returns the 802.11 header length in bytes (not including encryption
+ * headers). If the data in the sk_buff is too short to contain a valid 802.11
+ * header the function returns 0.
+ *
+ * @skb: the frame
+ */
+int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
+
+/**
+ * ieee80211_get_hdrlen - get header length from frame control
+ *
+ * This function returns the 802.11 header length in bytes (not including
+ * encryption headers.)
+ *
+ * @fc: the frame control field (in CPU endianness)
+ */
+int ieee80211_get_hdrlen(u16 fc);
+
+/**
+ * ieee80211_wake_queue - wake specific queue
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ * @queue: queue number (counted from zero).
+ *
+ * Drivers should use this function instead of netif_wake_queue.
+ */
+void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue);
+
+/**
+ * ieee80211_stop_queue - stop specific queue
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ * @queue: queue number (counted from zero).
+ *
+ * Drivers should use this function instead of netif_stop_queue.
+ */
+void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue);
+
+/**
+ * ieee80211_start_queues - start all queues
+ * @hw: pointer to as obtained from ieee80211_alloc_hw().
+ *
+ * Drivers should use this function instead of netif_start_queue.
+ */
+void ieee80211_start_queues(struct ieee80211_hw *hw);
+
+/**
+ * ieee80211_stop_queues - stop all queues
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ *
+ * Drivers should use this function instead of netif_stop_queue.
+ */
+void ieee80211_stop_queues(struct ieee80211_hw *hw);
+
+/**
+ * ieee80211_wake_queues - wake all queues
+ * @hw: pointer as obtained from ieee80211_alloc_hw().
+ *
+ * Drivers should use this function instead of netif_wake_queue.
+ */
+void ieee80211_wake_queues(struct ieee80211_hw *hw);
+
+/**
+ * ieee80211_scan_completed - completed hardware scan
+ *
+ * When hardware scan offload is used (i.e. the hw_scan() callback is
+ * assigned) this function needs to be called by the driver to notify
+ * mac80211 that the scan finished.
+ *
+ * @hw: the hardware that finished the scan
+ */
+void ieee80211_scan_completed(struct ieee80211_hw *hw);
+
+#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
+#define MAC_ARG(x) ((u8*)(x))[0], ((u8*)(x))[1], ((u8*)(x))[2], \
+ ((u8*)(x))[3], ((u8*)(x))[4], ((u8*)(x))[5]
+
+#endif /* MAC80211_H */
bool "Extra statistics for TX/RX debugging"
depends on MAC80211_DEBUG
-config HOSTAPD_WPA_TESTING
- bool "Support for TKIP countermeasures testing"
- depends on MAC80211_DEBUG
-
config MAC80211_IBSS_DEBUG
bool "Support for IBSS testing"
depends on MAC80211_DEBUG
-obj-$(CONFIG_MAC80211) += mac80211.o rc80211_simple.o rc80211_lowest.o
+obj-$(CONFIG_MAC80211) += mac80211.o rc80211_simple.o
mac80211-objs-$(CONFIG_MAC80211_LEDS) += ieee80211_led.o
mac80211-objs-$(CONFIG_MAC80211_DEBUGFS) += debugfs.o debugfs_sta.o debugfs_netdev.o debugfs_key.o
+mac80211-objs-$(CONFIG_NET_SCHED) += wme.o
mac80211-objs := \
ieee80211.o \
regdomain.o \
tkip.o \
aes_ccm.o \
- wme.o \
- ieee80211_cfg.o \
+ cfg.o \
+ rx.o \
+ tx.o \
+ key.o \
+ util.o \
+ event.o \
$(mac80211-objs-y)
--- /dev/null
+/*
+ * mac80211 configuration hooks for cfg80211
+ *
+ * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This file is GPLv2 as found in COPYING.
+ */
+
+#include <linux/nl80211.h>
+#include <linux/rtnetlink.h>
+#include <net/cfg80211.h>
+#include "ieee80211_i.h"
+#include "cfg.h"
+
+static enum ieee80211_if_types
+nl80211_type_to_mac80211_type(enum nl80211_iftype type)
+{
+ switch (type) {
+ case NL80211_IFTYPE_UNSPECIFIED:
+ return IEEE80211_IF_TYPE_STA;
+ case NL80211_IFTYPE_ADHOC:
+ return IEEE80211_IF_TYPE_IBSS;
+ case NL80211_IFTYPE_STATION:
+ return IEEE80211_IF_TYPE_STA;
+ case NL80211_IFTYPE_MONITOR:
+ return IEEE80211_IF_TYPE_MNTR;
+ default:
+ return IEEE80211_IF_TYPE_INVALID;
+ }
+}
+
+static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
+ enum nl80211_iftype type)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+ enum ieee80211_if_types itype;
+
+ if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
+ return -ENODEV;
+
+ itype = nl80211_type_to_mac80211_type(type);
+ if (itype == IEEE80211_IF_TYPE_INVALID)
+ return -EINVAL;
+
+ return ieee80211_if_add(local->mdev, name, NULL, itype);
+}
+
+static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+ struct net_device *dev;
+ char *name;
+
+ if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
+ return -ENODEV;
+
+ /* we're under RTNL */
+ dev = __dev_get_by_index(ifindex);
+ if (!dev)
+ return 0;
+
+ name = dev->name;
+
+ return ieee80211_if_remove(local->mdev, name, -1);
+}
+
+static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
+ enum nl80211_iftype type)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+ struct net_device *dev;
+ enum ieee80211_if_types itype;
+ struct ieee80211_sub_if_data *sdata;
+
+ if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
+ return -ENODEV;
+
+ /* we're under RTNL */
+ dev = __dev_get_by_index(ifindex);
+ if (!dev)
+ return -ENODEV;
+
+ if (netif_running(dev))
+ return -EBUSY;
+
+ itype = nl80211_type_to_mac80211_type(type);
+ if (itype == IEEE80211_IF_TYPE_INVALID)
+ return -EINVAL;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ if (sdata->type == IEEE80211_IF_TYPE_VLAN)
+ return -EOPNOTSUPP;
+
+ ieee80211_if_reinit(dev);
+ ieee80211_if_set_type(dev, itype);
+
+ return 0;
+}
+
+struct cfg80211_ops mac80211_config_ops = {
+ .add_virtual_intf = ieee80211_add_iface,
+ .del_virtual_intf = ieee80211_del_iface,
+ .change_virtual_intf = ieee80211_change_iface,
+};
--- /dev/null
+/*
+ * mac80211 configuration hooks for cfg80211
+ */
+#ifndef __CFG_H
+#define __CFG_H
+
+extern struct cfg80211_ops mac80211_config_ops;
+
+#endif /* __CFG_H */
#include "ieee80211_rate.h"
#include "debugfs.h"
-static inline int rtnl_lock_local(struct ieee80211_local *local)
-{
- rtnl_lock();
- if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) {
- rtnl_unlock();
- return -ENODEV;
- }
- return 0;
-}
-
int mac80211_open_file_generic(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return "IEEE 802.11b";
case MODE_IEEE80211G:
return "IEEE 802.11g";
- case MODE_ATHEROS_TURBO:
- return "Atheros Turbo (5 GHz)";
default:
return "UNKNOWN";
}
.open = mac80211_open_file_generic,
};
-#define DEBUGFS_READ(name, buflen, fmt, value...) \
+#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
static ssize_t name## _read(struct file *file, char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
res = scnprintf(buf, buflen, fmt "\n", ##value); \
return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
} \
-
-#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
-DEBUGFS_READ(name, buflen, fmt, ## value) \
+ \
static const struct file_operations name## _ops = { \
.read = name## _read, \
.open = mac80211_open_file_generic, \
};
-#define DEBUGFS_ADD_MODE(name, mode) \
- local->debugfs.name = debugfs_create_file(#name, mode, phyd, \
+#define DEBUGFS_ADD(name) \
+ local->debugfs.name = debugfs_create_file(#name, 0444, phyd, \
local, &name## _ops);
-#define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0444)
-
#define DEBUGFS_DEL(name) \
debugfs_remove(local->debugfs.name); \
local->debugfs.name = NULL;
local->hw.conf.channel);
DEBUGFS_READONLY_FILE(frequency, 20, "%d",
local->hw.conf.freq);
-DEBUGFS_READONLY_FILE(radar_detect, 20, "%d",
- local->hw.conf.radar_detect);
DEBUGFS_READONLY_FILE(antenna_sel_tx, 20, "%d",
local->hw.conf.antenna_sel_tx);
DEBUGFS_READONLY_FILE(antenna_sel_rx, 20, "%d",
local->hw.conf.antenna_sel_rx);
DEBUGFS_READONLY_FILE(bridge_packets, 20, "%d",
local->bridge_packets);
-DEBUGFS_READONLY_FILE(key_tx_rx_threshold, 20, "%d",
- local->key_tx_rx_threshold);
DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
local->rts_threshold);
DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
ieee80211_mode_str(local->hw.conf.phymode));
DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x",
local->wep_iv & 0xffffff);
-DEBUGFS_READONLY_FILE(tx_power_reduction, 20, "%d.%d dBm",
- local->hw.conf.tx_power_reduction / 10,
- local->hw.conf.tx_power_reduction & 10);
+DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
+ local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>");
-DEBUGFS_READ(rate_ctrl_alg, 100, "%s",
- local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>");
+/* statistics stuff */
-static ssize_t rate_ctrl_alg_write(struct file *file, const char __user *userbuf,
- size_t count, loff_t *ppos)
+static inline int rtnl_lock_local(struct ieee80211_local *local)
{
- struct ieee80211_local *local = file->private_data;
- char buf[64];
- ssize_t buf_size;
- int res;
-
- buf_size = min(count, ARRAY_SIZE(buf) - 1);
- if (copy_from_user(buf, userbuf, buf_size))
- return -EFAULT;
- buf[buf_size] = '\0';
- res = rtnl_lock_local(local);
- if (res)
- return res;
- res = ieee80211_init_rate_ctrl_alg(local, buf);
- rtnl_unlock();
- return res < 0 ? res : buf_size;
+ rtnl_lock();
+ if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) {
+ rtnl_unlock();
+ return -ENODEV;
+ }
+ return 0;
}
-static const struct file_operations rate_ctrl_alg_ops = {
- .read = rate_ctrl_alg_read,
- .write = rate_ctrl_alg_write,
- .open = mac80211_open_file_generic,
-};
-
-/* statistics stuff */
-
#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \
DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value)
DEBUGFS_ADD(channel);
DEBUGFS_ADD(frequency);
- DEBUGFS_ADD(radar_detect);
DEBUGFS_ADD(antenna_sel_tx);
DEBUGFS_ADD(antenna_sel_rx);
DEBUGFS_ADD(bridge_packets);
- DEBUGFS_ADD(key_tx_rx_threshold);
DEBUGFS_ADD(rts_threshold);
DEBUGFS_ADD(fragmentation_threshold);
DEBUGFS_ADD(short_retry_limit);
DEBUGFS_ADD(total_ps_buffered);
DEBUGFS_ADD(mode);
DEBUGFS_ADD(wep_iv);
- DEBUGFS_ADD(tx_power_reduction);
- DEBUGFS_ADD_MODE(rate_ctrl_alg, 0644);
DEBUGFS_ADD(modes);
statsd = debugfs_create_dir("statistics", phyd);
{
DEBUGFS_DEL(channel);
DEBUGFS_DEL(frequency);
- DEBUGFS_DEL(radar_detect);
DEBUGFS_DEL(antenna_sel_tx);
DEBUGFS_DEL(antenna_sel_rx);
DEBUGFS_DEL(bridge_packets);
- DEBUGFS_DEL(key_tx_rx_threshold);
DEBUGFS_DEL(rts_threshold);
DEBUGFS_DEL(fragmentation_threshold);
DEBUGFS_DEL(short_retry_limit);
DEBUGFS_DEL(total_ps_buffered);
DEBUGFS_DEL(mode);
DEBUGFS_DEL(wep_iv);
- DEBUGFS_DEL(tx_power_reduction);
- DEBUGFS_DEL(rate_ctrl_alg);
DEBUGFS_DEL(modes);
DEBUGFS_STATS_DEL(transmitted_fragment_count);
#include "debugfs.h"
#include "debugfs_key.h"
-#define KEY_READ(name, buflen, format_string) \
+#define KEY_READ(name, prop, buflen, format_string) \
static ssize_t key_##name##_read(struct file *file, \
char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
char buf[buflen]; \
struct ieee80211_key *key = file->private_data; \
- int res = scnprintf(buf, buflen, format_string, key->name); \
+ int res = scnprintf(buf, buflen, format_string, key->prop); \
return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
}
-#define KEY_READ_D(name) KEY_READ(name, 20, "%d\n")
+#define KEY_READ_D(name) KEY_READ(name, name, 20, "%d\n")
+#define KEY_READ_X(name) KEY_READ(name, name, 20, "0x%x\n")
#define KEY_OPS(name) \
static const struct file_operations key_ ##name## _ops = { \
KEY_READ_##format(name) \
KEY_OPS(name)
-KEY_FILE(keylen, D);
-KEY_FILE(force_sw_encrypt, D);
-KEY_FILE(keyidx, D);
-KEY_FILE(hw_key_idx, D);
+#define KEY_CONF_READ(name, buflen, format_string) \
+ KEY_READ(conf_##name, conf.name, buflen, format_string)
+#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, 20, "%d\n")
+
+#define KEY_CONF_OPS(name) \
+static const struct file_operations key_ ##name## _ops = { \
+ .read = key_conf_##name##_read, \
+ .open = mac80211_open_file_generic, \
+}
+
+#define KEY_CONF_FILE(name, format) \
+ KEY_CONF_READ_##format(name) \
+ KEY_CONF_OPS(name)
+
+KEY_CONF_FILE(keylen, D);
+KEY_CONF_FILE(keyidx, D);
+KEY_CONF_FILE(hw_key_idx, D);
+KEY_FILE(flags, X);
KEY_FILE(tx_rx_count, D);
+KEY_READ(ifindex, sdata->dev->ifindex, 20, "%d\n");
+KEY_OPS(ifindex);
static ssize_t key_algorithm_read(struct file *file,
char __user *userbuf,
char *alg;
struct ieee80211_key *key = file->private_data;
- switch (key->alg) {
+ switch (key->conf.alg) {
case ALG_WEP:
alg = "WEP\n";
break;
int len;
struct ieee80211_key *key = file->private_data;
- switch (key->alg) {
+ switch (key->conf.alg) {
case ALG_WEP:
len = scnprintf(buf, sizeof(buf), "\n");
+ break;
case ALG_TKIP:
len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
key->u.tkip.iv32,
key->u.tkip.iv16);
+ break;
case ALG_CCMP:
tpn = key->u.ccmp.tx_pn;
len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
tpn[0], tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]);
+ break;
default:
return 0;
}
int i, len;
const u8 *rpn;
- switch (key->alg) {
+ switch (key->conf.alg) {
case ALG_WEP:
len = scnprintf(buf, sizeof(buf), "\n");
+ break;
case ALG_TKIP:
for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
p += scnprintf(p, sizeof(buf)+buf-p,
key->u.tkip.iv32_rx[i],
key->u.tkip.iv16_rx[i]);
len = p - buf;
+ break;
case ALG_CCMP:
for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
rpn = key->u.ccmp.rx_pn[i];
rpn[3], rpn[4], rpn[5]);
}
len = p - buf;
+ break;
default:
return 0;
}
char buf[20];
int len;
- if (key->alg != ALG_CCMP)
+ if (key->conf.alg != ALG_CCMP)
return 0;
len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
return simple_read_from_buffer(userbuf, count, ppos, buf, len);
size_t count, loff_t *ppos)
{
struct ieee80211_key *key = file->private_data;
- int i, res, bufsize = 2*key->keylen+2;
+ int i, res, bufsize = 2 * key->conf.keylen + 2;
char *buf = kmalloc(bufsize, GFP_KERNEL);
char *p = buf;
- for (i = 0; i < key->keylen; i++)
- p += scnprintf(p, bufsize+buf-p, "%02x", key->key[i]);
+ for (i = 0; i < key->conf.keylen; i++)
+ p += scnprintf(p, bufsize + buf - p, "%02x", key->conf.key[i]);
p += scnprintf(p, bufsize+buf-p, "\n");
res = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
kfree(buf);
void ieee80211_debugfs_key_add(struct ieee80211_local *local,
struct ieee80211_key *key)
{
+ static int keycount;
char buf[20];
if (!local->debugfs.keys)
return;
- sprintf(buf, "%d", key->keyidx);
+ sprintf(buf, "%d", keycount);
+ keycount++;
key->debugfs.dir = debugfs_create_dir(buf,
local->debugfs.keys);
return;
DEBUGFS_ADD(keylen);
- DEBUGFS_ADD(force_sw_encrypt);
+ DEBUGFS_ADD(flags);
DEBUGFS_ADD(keyidx);
DEBUGFS_ADD(hw_key_idx);
DEBUGFS_ADD(tx_rx_count);
DEBUGFS_ADD(rx_spec);
DEBUGFS_ADD(replays);
DEBUGFS_ADD(key);
+ DEBUGFS_ADD(ifindex);
};
#define DEBUGFS_DEL(name) \
return;
DEBUGFS_DEL(keylen);
- DEBUGFS_DEL(force_sw_encrypt);
+ DEBUGFS_DEL(flags);
DEBUGFS_DEL(keyidx);
DEBUGFS_DEL(hw_key_idx);
DEBUGFS_DEL(tx_rx_count);
DEBUGFS_DEL(rx_spec);
DEBUGFS_DEL(replays);
DEBUGFS_DEL(key);
+ DEBUGFS_DEL(ifindex);
debugfs_remove(key->debugfs.stalink);
key->debugfs.stalink = NULL;
if (!sdata->debugfsdir)
return;
- sprintf(buf, "../keys/%d", sdata->default_key->keyidx);
+ sprintf(buf, "../keys/%d", sdata->default_key->conf.keyidx);
sdata->debugfs.default_key =
debugfs_create_symlink("default_key", sdata->debugfsdir, buf);
}
if (!key->debugfs.dir)
return;
- sprintf(buf, "../sta/" MAC_FMT, MAC_ARG(sta->addr));
+ sprintf(buf, "../../stations/" MAC_FMT, MAC_ARG(sta->addr));
key->debugfs.stalink =
debugfs_create_symlink("station", key->debugfs.dir, buf);
}
IEEE80211_IF_FMT_##format(name, field) \
__IEEE80211_IF_FILE(name)
-#define DEBUGFS_QOS_FILE(name, f) \
-static ssize_t qos_ ##name## _write(struct file *file, \
- const char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- struct ieee80211_sub_if_data *sdata = file->private_data; \
- \
- f(sdata->dev, &sdata->u.sta, &sdata->u.sta.tspec); \
- \
- return count; \
-} \
- \
-static const struct file_operations qos_ ##name## _ops = { \
- .write = qos_ ##name## _write, \
- .open = mac80211_open_file_generic, \
-};
-
-#define DEBUGFS_QOS_ADD(name) \
- sdata->debugfs.sta.qos.name = debugfs_create_file(#name, 0444, qosd,\
- sdata, &qos_ ##name## _ops);
-
-#define DEBUGFS_QOS_DEL(name) \
- do { \
- debugfs_remove(sdata->debugfs.sta.qos.name); \
- sdata->debugfs.sta.qos.name = NULL; \
- } while (0)
-
-DEBUGFS_QOS_FILE(addts_11e, ieee80211_send_addts);
-DEBUGFS_QOS_FILE(addts_wmm, wmm_send_addts);
-DEBUGFS_QOS_FILE(delts_11e, ieee80211_send_delts);
-DEBUGFS_QOS_FILE(delts_wmm, wmm_send_delts);
-
-static ssize_t qos_if_dls_mac(const struct ieee80211_sub_if_data *sdata,
- char *buf, int buflen)
-{
- return scnprintf(buf, buflen, MAC_FMT "\n",
- MAC_ARG(sdata->u.sta.dls_mac));
-}
-
-static ssize_t qos_dls_mac_read(struct file *file,
- char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- return ieee80211_if_read(file->private_data,
- userbuf, count, ppos,
- qos_if_dls_mac);
-}
-
-static ssize_t qos_dls_mac_write(struct file *file, const char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct ieee80211_sub_if_data *sdata = file->private_data;
- char buf[20];
- size_t size;
- u8 m[ETH_ALEN];
-
- size = min(sizeof(buf) - 1, count);
- buf[size] = '\0';
- if (copy_from_user(buf, userbuf, size))
- return -EFAULT;
-
- if (sscanf(buf, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
- &((u8*)(m))[0], &((u8*)(m))[1], &((u8*)(m))[2],
- &((u8*)(m))[3], &((u8*)(m))[4], &((u8*)(m))[5]) != ETH_ALEN){
- printk(KERN_ERR "%s: sscanf input error\n", sdata->dev->name);
- return -EINVAL;
- }
- memcpy(sdata->u.sta.dls_mac, m, ETH_ALEN);
- return count;
-}
-
-static const struct file_operations qos_dls_mac_ops = {
- .read = qos_dls_mac_read,
- .write = qos_dls_mac_write,
- .open = mac80211_open_file_generic,
-};
-
-static ssize_t qos_if_dls_op(const struct ieee80211_sub_if_data *sdata,
- char *buf, int buflen)
-{
- return scnprintf(buf, buflen,
- "DLS Operation: Setup = 1; Teardown = 2\n");
-}
-
-static ssize_t qos_dls_op_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- return ieee80211_if_read(file->private_data,
- userbuf, count, ppos,
- qos_if_dls_op);
-}
-
-static ssize_t qos_dls_op_write(struct file *file, const char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct ieee80211_sub_if_data *sdata = file->private_data;
- char buf[20];
- size_t size;
- unsigned int opt;
-
- size = min(sizeof(buf) - 1, count);
- buf[size] = '\0';
- if (copy_from_user(buf, userbuf, size))
- return -EFAULT;
-
- if (sscanf(buf, "%u", &opt) != 1) {
- printk(KERN_ERR "%s: sscanf input error\n", sdata->dev->name);
- return -EINVAL;
- }
- switch (opt) {
- case 1:
- ieee80211_send_dls_req(sdata->dev, &sdata->u.sta,
- sdata->u.sta.dls_mac, 0);
- break;
- case 2:
- ieee80211_send_dls_teardown(sdata->dev, &sdata->u.sta,
- sdata->u.sta.dls_mac,
- WLAN_REASON_QSTA_NOT_USE);
- break;
- default:
- printk(KERN_ERR "Unknown DLS Operation: %d\n", opt);
- break;
- }
- return count;
-}
-
-static const struct file_operations qos_dls_op_ops = {
- .read = qos_dls_op_read,
- .write = qos_dls_op_write,
- .open = mac80211_open_file_generic,
-};
-
-#define DEBUGFS_TSINFO_FILE(_name, min_val, max_val) \
-static ssize_t tsinfo_ ##_name## _read(struct file *file, \
- char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- char buf[20]; \
- struct ieee80211_sub_if_data *sdata = file->private_data; \
- int res = scnprintf(buf, count, "%u\n", \
- IEEE80211_TSINFO_## _name (sdata->u.sta.tspec.ts_info));\
- return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
-} \
- \
-static ssize_t tsinfo_ ##_name## _write(struct file *file, \
- const char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- char buf[20]; \
- size_t size; \
- int val; \
- struct ieee80211_sub_if_data *sdata = file->private_data; \
- \
- size = min(sizeof(buf) - 1, count); \
- buf[size] = '\0'; \
- if (copy_from_user(buf, userbuf, size)) \
- return -EFAULT; \
- \
- val = simple_strtoul(buf, NULL, 0); \
- if ((val < min_val) || (val > max_val)) { \
- printk(KERN_ERR "%s: set value (%u) out of range " \
- "[%u, %u]\n",sdata->dev->name,val,min_val,max_val);\
- return -EINVAL; \
- } \
- IEEE80211_SET_TSINFO_ ##_name (sdata->u.sta.tspec.ts_info, val);\
- return count; \
-} \
- \
-static const struct file_operations tsinfo_ ##_name## _ops = { \
- .read = tsinfo_ ##_name## _read, \
- .write = tsinfo_ ##_name## _write, \
- .open = mac80211_open_file_generic, \
-};
-
-#define DEBUGFS_TSINFO_ADD_TSID \
- sdata->debugfs.sta.tsinfo.tsid = \
- debugfs_create_file("tsid", 0444, tsinfod, \
- sdata, &tsinfo_TSID_ops);
-
-#define DEBUGFS_TSINFO_ADD_DIR \
- sdata->debugfs.sta.tsinfo.direction = \
- debugfs_create_file("direction", 0444, tsinfod, \
- sdata, &tsinfo_DIR_ops);
-
-#define DEBUGFS_TSINFO_ADD_UP \
- sdata->debugfs.sta.tsinfo.up = \
- debugfs_create_file("up", 0444, tsinfod, \
- sdata, &tsinfo_UP_ops);
-
-#define DEBUGFS_TSINFO_DEL(name) \
- do { \
- debugfs_remove(sdata->debugfs.sta.tsinfo.name); \
- sdata->debugfs.sta.tsinfo.name = NULL; \
- } while (0)
-
-DEBUGFS_TSINFO_FILE(TSID, 8, 15);
-DEBUGFS_TSINFO_FILE(DIR, 0, 3);
-DEBUGFS_TSINFO_FILE(UP, 0, 7);
-
-#define DEBUGFS_TSPEC_FILE(name, format_string, endian_f1, endian_f2) \
-static ssize_t tspec_ ##name## _read(struct file *file, \
- char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- char buf[20]; \
- struct ieee80211_sub_if_data *sdata = file->private_data; \
- int res = scnprintf(buf, count, format_string "\n", \
- endian_f1(sdata->u.sta.tspec.name)); \
- return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
-} \
- \
-static ssize_t tspec_ ##name## _write(struct file *file, \
- const char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- char buf[20]; \
- size_t size; \
- struct ieee80211_sub_if_data *sdata = file->private_data; \
- \
- size = min(sizeof(buf) - 1, count); \
- buf[size] = '\0'; \
- if (copy_from_user(buf, userbuf, size)) \
- return -EFAULT; \
- \
- sdata->u.sta.tspec.name = endian_f2(simple_strtoul(buf, NULL, 0));\
- return count; \
-} \
- \
-static const struct file_operations tspec_ ##name## _ops = { \
- .read = tspec_ ##name## _read, \
- .write = tspec_ ##name## _write, \
- .open = mac80211_open_file_generic, \
-};
-
-#define DEBUGFS_TSPEC_ADD(name) \
- sdata->debugfs.sta.tspec.name = debugfs_create_file(#name, \
- 0444, tspecd, sdata, &tspec_ ##name## _ops);
-
-#define DEBUGFS_TSPEC_DEL(name) \
- do { \
- debugfs_remove(sdata->debugfs.sta.tspec.name); \
- sdata->debugfs.sta.tspec.name = NULL; \
- } while (0)
-
-DEBUGFS_TSPEC_FILE(nominal_msdu_size, "%hu", le16_to_cpu, cpu_to_le16);
-DEBUGFS_TSPEC_FILE(max_msdu_size, "%hu", le16_to_cpu, cpu_to_le16);
-DEBUGFS_TSPEC_FILE(min_service_interval, "%u", le32_to_cpu, cpu_to_le32);
-DEBUGFS_TSPEC_FILE(max_service_interval, "%u", le32_to_cpu, cpu_to_le32);
-DEBUGFS_TSPEC_FILE(inactivity_interval, "%u", le32_to_cpu, cpu_to_le32);
-DEBUGFS_TSPEC_FILE(suspension_interval, "%u", le32_to_cpu, cpu_to_le32);
-DEBUGFS_TSPEC_FILE(service_start_time, "%u", le32_to_cpu, cpu_to_le32);
-DEBUGFS_TSPEC_FILE(min_data_rate, "%u", le32_to_cpu, cpu_to_le32);
-DEBUGFS_TSPEC_FILE(mean_data_rate, "%u", le32_to_cpu, cpu_to_le32);
-DEBUGFS_TSPEC_FILE(peak_data_rate, "%u", le32_to_cpu, cpu_to_le32);
-DEBUGFS_TSPEC_FILE(burst_size, "%u", le32_to_cpu, cpu_to_le32);
-DEBUGFS_TSPEC_FILE(delay_bound, "%u", le32_to_cpu, cpu_to_le32);
-DEBUGFS_TSPEC_FILE(min_phy_rate, "%u", le32_to_cpu, cpu_to_le32);
-DEBUGFS_TSPEC_FILE(surplus_band_allow, "%hu", le16_to_cpu, cpu_to_le16);
-DEBUGFS_TSPEC_FILE(medium_time, "%hu", le16_to_cpu, cpu_to_le16);
-
-
/* common attributes */
IEEE80211_IF_FILE(channel_use, channel_use, DEC);
IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
return scnprintf(buf, buflen, "%s%s%s%s%s%s%s\n",
- sdata->u.sta.ssid_set ? "SSID\n" : "",
- sdata->u.sta.bssid_set ? "BSSID\n" : "",
- sdata->u.sta.prev_bssid_set ? "prev BSSID\n" : "",
- sdata->u.sta.authenticated ? "AUTH\n" : "",
- sdata->u.sta.associated ? "ASSOC\n" : "",
- sdata->u.sta.probereq_poll ? "PROBEREQ POLL\n" : "",
- sdata->u.sta.use_protection ? "CTS prot\n" : "");
+ sdata->u.sta.flags & IEEE80211_STA_SSID_SET ? "SSID\n" : "",
+ sdata->u.sta.flags & IEEE80211_STA_BSSID_SET ? "BSSID\n" : "",
+ sdata->u.sta.flags & IEEE80211_STA_PREV_BSSID_SET ? "prev BSSID\n" : "",
+ sdata->u.sta.flags & IEEE80211_STA_AUTHENTICATED ? "AUTH\n" : "",
+ sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED ? "ASSOC\n" : "",
+ sdata->u.sta.flags & IEEE80211_STA_PROBEREQ_POLL ? "PROBEREQ POLL\n" : "",
+ sdata->flags & IEEE80211_SDATA_USE_PROTECTION ? "CTS prot\n" : "");
}
__IEEE80211_IF_FILE(flags);
/* WDS attributes */
IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
-/* VLAN attributes */
-IEEE80211_IF_FILE(vlan_id, u.vlan.id, DEC);
-
-/* MONITOR attributes */
-static ssize_t ieee80211_if_fmt_mode(
- const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
-{
- struct ieee80211_local *local = sdata->local;
-
- return scnprintf(buf, buflen, "%s\n",
- ((local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) ||
- local->open_count == local->monitors) ?
- "hard" : "soft");
-}
-__IEEE80211_IF_FILE(mode);
-
-
#define DEBUGFS_ADD(name, type)\
sdata->debugfs.type.name = debugfs_create_file(#name, 0444,\
sdata->debugfsdir, sdata, &name##_ops);
static void add_sta_files(struct ieee80211_sub_if_data *sdata)
{
- struct dentry *qosd;
- struct dentry *tsinfod;
- struct dentry *tspecd;
-
DEBUGFS_ADD(channel_use, sta);
DEBUGFS_ADD(drop_unencrypted, sta);
DEBUGFS_ADD(eapol, sta);
DEBUGFS_ADD(auth_alg, sta);
DEBUGFS_ADD(auth_transaction, sta);
DEBUGFS_ADD(flags, sta);
-
- qosd = debugfs_create_dir("qos", sdata->debugfsdir);
- sdata->debugfs.sta.qos_dir = qosd;
-
- DEBUGFS_QOS_ADD(addts_11e);
- DEBUGFS_QOS_ADD(addts_wmm);
- DEBUGFS_QOS_ADD(delts_11e);
- DEBUGFS_QOS_ADD(delts_wmm);
- DEBUGFS_QOS_ADD(dls_mac);
- DEBUGFS_QOS_ADD(dls_op);
-
- tsinfod = debugfs_create_dir("ts_info", qosd);
- sdata->debugfs.sta.tsinfo_dir = tsinfod;
-
- DEBUGFS_TSINFO_ADD_TSID;
- DEBUGFS_TSINFO_ADD_DIR;
- DEBUGFS_TSINFO_ADD_UP;
-
- tspecd = debugfs_create_dir("tspec", qosd);
- sdata->debugfs.sta.tspec_dir = tspecd;
-
- DEBUGFS_TSPEC_ADD(nominal_msdu_size);
- DEBUGFS_TSPEC_ADD(max_msdu_size);
- DEBUGFS_TSPEC_ADD(min_service_interval);
- DEBUGFS_TSPEC_ADD(max_service_interval);
- DEBUGFS_TSPEC_ADD(inactivity_interval);
- DEBUGFS_TSPEC_ADD(suspension_interval);
- DEBUGFS_TSPEC_ADD(service_start_time);
- DEBUGFS_TSPEC_ADD(min_data_rate);
- DEBUGFS_TSPEC_ADD(mean_data_rate);
- DEBUGFS_TSPEC_ADD(peak_data_rate);
- DEBUGFS_TSPEC_ADD(burst_size);
- DEBUGFS_TSPEC_ADD(delay_bound);
- DEBUGFS_TSPEC_ADD(min_phy_rate);
- DEBUGFS_TSPEC_ADD(surplus_band_allow);
- DEBUGFS_TSPEC_ADD(medium_time);
}
static void add_ap_files(struct ieee80211_sub_if_data *sdata)
DEBUGFS_ADD(drop_unencrypted, vlan);
DEBUGFS_ADD(eapol, vlan);
DEBUGFS_ADD(ieee8021_x, vlan);
- DEBUGFS_ADD(vlan_id, vlan);
}
static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
{
- DEBUGFS_ADD(mode, monitor);
}
static void add_files(struct ieee80211_sub_if_data *sdata)
DEBUGFS_DEL(auth_alg, sta);
DEBUGFS_DEL(auth_transaction, sta);
DEBUGFS_DEL(flags, sta);
-
- DEBUGFS_TSINFO_DEL(tsid);
- DEBUGFS_TSINFO_DEL(direction);
- DEBUGFS_TSINFO_DEL(up);
-
- DEBUGFS_TSPEC_DEL(nominal_msdu_size);
- DEBUGFS_TSPEC_DEL(max_msdu_size);
- DEBUGFS_TSPEC_DEL(min_service_interval);
- DEBUGFS_TSPEC_DEL(max_service_interval);
- DEBUGFS_TSPEC_DEL(inactivity_interval);
- DEBUGFS_TSPEC_DEL(suspension_interval);
- DEBUGFS_TSPEC_DEL(service_start_time);
- DEBUGFS_TSPEC_DEL(min_data_rate);
- DEBUGFS_TSPEC_DEL(mean_data_rate);
- DEBUGFS_TSPEC_DEL(peak_data_rate);
- DEBUGFS_TSPEC_DEL(burst_size);
- DEBUGFS_TSPEC_DEL(delay_bound);
- DEBUGFS_TSPEC_DEL(min_phy_rate);
- DEBUGFS_TSPEC_DEL(surplus_band_allow);
- DEBUGFS_TSPEC_DEL(medium_time);
-
- DEBUGFS_QOS_DEL(addts_11e);
- DEBUGFS_QOS_DEL(addts_wmm);
- DEBUGFS_QOS_DEL(delts_11e);
- DEBUGFS_QOS_DEL(delts_wmm);
- DEBUGFS_QOS_DEL(dls_mac);
- DEBUGFS_QOS_DEL(dls_op);
-
- debugfs_remove(sdata->debugfs.sta.tspec_dir);
- sdata->debugfs.sta.tspec_dir = NULL;
- debugfs_remove(sdata->debugfs.sta.tsinfo_dir);
- sdata->debugfs.sta.tsinfo_dir = NULL;
- debugfs_remove(sdata->debugfs.sta.qos_dir);
- sdata->debugfs.sta.qos_dir = NULL;
}
static void del_ap_files(struct ieee80211_sub_if_data *sdata)
DEBUGFS_DEL(drop_unencrypted, vlan);
DEBUGFS_DEL(eapol, vlan);
DEBUGFS_DEL(ieee8021_x, vlan);
- DEBUGFS_DEL(vlan_id, vlan);
}
static void del_monitor_files(struct ieee80211_sub_if_data *sdata)
{
- DEBUGFS_DEL(mode, monitor);
}
static void del_files(struct ieee80211_sub_if_data *sdata, int type)
void *ndev)
{
struct net_device *dev = ndev;
- /* TODO
+ struct dentry *dir;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
char buf[10+IFNAMSIZ];
- */
if (state != NETDEV_CHANGENAME)
return 0;
if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
return 0;
- /* TODO
sprintf(buf, "netdev:%s", dev->name);
- debugfs_rename(IEEE80211_DEV_TO_SUB_IF(dev)->debugfsdir, buf);
- */
+ dir = sdata->debugfsdir;
+ if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
+ printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs "
+ "dir to %s\n", buf);
return 0;
}
STA_OPS(name)
STA_FILE(aid, aid, D);
-STA_FILE(key_idx_compression, key_idx_compression, D);
STA_FILE(dev, dev->name, S);
-STA_FILE(vlan_id, vlan_id, D);
STA_FILE(rx_packets, rx_packets, LU);
STA_FILE(tx_packets, tx_packets, LU);
STA_FILE(rx_bytes, rx_bytes, LU);
{
char buf[100];
struct sta_info *sta = file->private_data;
- int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s%s",
+ int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s",
sta->flags & WLAN_STA_AUTH ? "AUTH\n" : "",
sta->flags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
sta->flags & WLAN_STA_PS ? "PS\n" : "",
sta->flags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
sta->flags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
sta->flags & WLAN_STA_WME ? "WME\n" : "",
- sta->flags & WLAN_STA_HT ? "HT\n" : "",
sta->flags & WLAN_STA_WDS ? "WDS\n" : "");
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
--- /dev/null
+/*
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * mac80211 - events
+ */
+
+#include <linux/netdevice.h>
+#include <net/iw_handler.h>
+#include "ieee80211_i.h"
+
+/*
+ * indicate a failed Michael MIC to userspace; the passed packet
+ * (in the variable hdr) must be long enough to extract the TKIP
+ * fields like TSC
+ */
+void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
+ struct ieee80211_hdr *hdr)
+{
+ union iwreq_data wrqu;
+ char *buf = kmalloc(128, GFP_ATOMIC);
+
+ if (buf) {
+ /* TODO: needed parameters: count, key type, TSC */
+ sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
+ "keyid=%d %scast addr=" MAC_FMT ")",
+ keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni",
+ MAC_ARG(hdr->addr2));
+ memset(&wrqu, 0, sizeof(wrqu));
+ wrqu.data.length = strlen(buf);
+ wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
+ kfree(buf);
+ }
+
+ /*
+ * TODO: re-add support for sending MIC failure indication
+ * with all info via nl80211
+ */
+}
+++ /dev/null
-/*
- * Host AP (software wireless LAN access point) user space daemon for
- * Host AP kernel driver
- * Copyright 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
- * Copyright 2002-2004, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef HOSTAPD_IOCTL_H
-#define HOSTAPD_IOCTL_H
-
-#ifdef __KERNEL__
-#include <linux/types.h>
-#endif /* __KERNEL__ */
-
-#define PRISM2_IOCTL_PRISM2_PARAM (SIOCIWFIRSTPRIV + 0)
-#define PRISM2_IOCTL_GET_PRISM2_PARAM (SIOCIWFIRSTPRIV + 1)
-#define PRISM2_IOCTL_HOSTAPD (SIOCIWFIRSTPRIV + 3)
-
-/* PRISM2_IOCTL_PRISM2_PARAM ioctl() subtypes:
- * This table is no longer added to, the whole sub-ioctl
- * mess shall be deleted completely. */
-enum {
- PRISM2_PARAM_BEACON_INT = 3,
- PRISM2_PARAM_AP_BRIDGE_PACKETS = 10,
- PRISM2_PARAM_DTIM_PERIOD = 11,
- PRISM2_PARAM_AP_AUTH_ALGS = 15,
- PRISM2_PARAM_HOST_ENCRYPT = 17,
- PRISM2_PARAM_HOST_DECRYPT = 18,
- PRISM2_PARAM_IEEE_802_1X = 23,
- PRISM2_PARAM_ANTSEL_TX = 24,
- PRISM2_PARAM_ANTSEL_RX = 25,
-
- /* Instant802 additions */
- PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES = 1001,
- PRISM2_PARAM_DROP_UNENCRYPTED = 1002,
- PRISM2_PARAM_PREAMBLE = 1003,
- PRISM2_PARAM_SHORT_SLOT_TIME = 1006,
- PRISM2_PARAM_NEXT_MODE = 1008,
- PRISM2_PARAM_CLEAR_KEYS = 1009,
- PRISM2_PARAM_RADIO_ENABLED = 1010,
- PRISM2_PARAM_ANTENNA_MODE = 1013,
- PRISM2_PARAM_PRIVACY_INVOKED = 1014,
- PRISM2_PARAM_BROADCAST_SSID = 1015,
- PRISM2_PARAM_STAT_TIME = 1016,
- PRISM2_PARAM_STA_ANTENNA_SEL = 1017,
- PRISM2_PARAM_FORCE_UNICAST_RATE = 1018,
- PRISM2_PARAM_RATE_CTRL_NUM_UP = 1019,
- PRISM2_PARAM_RATE_CTRL_NUM_DOWN = 1020,
- PRISM2_PARAM_MAX_RATECTRL_RATE = 1021,
- PRISM2_PARAM_TX_POWER_REDUCTION = 1022,
- PRISM2_PARAM_EAPOL = 1023,
- PRISM2_PARAM_KEY_TX_RX_THRESHOLD = 1024,
- PRISM2_PARAM_KEY_INDEX = 1025,
- PRISM2_PARAM_DEFAULT_WEP_ONLY = 1026,
- PRISM2_PARAM_WIFI_WME_NOACK_TEST = 1033,
- PRISM2_PARAM_ALLOW_BROADCAST_ALWAYS = 1034,
- PRISM2_PARAM_SCAN_FLAGS = 1035,
- PRISM2_PARAM_HW_MODES = 1036,
- PRISM2_PARAM_CREATE_IBSS = 1037,
- PRISM2_PARAM_WMM_ENABLED = 1038,
- PRISM2_PARAM_MIXED_CELL = 1039,
- PRISM2_PARAM_KEY_MGMT = 1040,
- PRISM2_PARAM_RADAR_DETECT = 1043,
- PRISM2_PARAM_SPECTRUM_MGMT = 1044,
- PRISM2_PARAM_USER_SPACE_MLME = 1045,
- PRISM2_PARAM_MGMT_IF = 1046,
-};
-
-/* PRISM2_IOCTL_HOSTAPD ioctl() cmd:
- * This table is no longer added to, the hostapd ioctl
- * shall be deleted completely. */
-enum {
- PRISM2_HOSTAPD_FLUSH = 1,
- PRISM2_HOSTAPD_ADD_STA = 2,
- PRISM2_HOSTAPD_REMOVE_STA = 3,
- PRISM2_HOSTAPD_GET_INFO_STA = 4,
- PRISM2_SET_ENCRYPTION = 6,
- PRISM2_GET_ENCRYPTION = 7,
- PRISM2_HOSTAPD_SET_FLAGS_STA = 8,
- PRISM2_HOSTAPD_MLME = 13,
-
- /* Instant802 additions */
- PRISM2_HOSTAPD_SET_BEACON = 1001,
- PRISM2_HOSTAPD_GET_HW_FEATURES = 1002,
- PRISM2_HOSTAPD_WPA_TRIGGER = 1004,
- PRISM2_HOSTAPD_SET_RATE_SETS = 1005,
- PRISM2_HOSTAPD_ADD_IF = 1006,
- PRISM2_HOSTAPD_REMOVE_IF = 1007,
- PRISM2_HOSTAPD_GET_DOT11COUNTERSTABLE = 1008,
- PRISM2_HOSTAPD_GET_LOAD_STATS = 1009,
- PRISM2_HOSTAPD_SET_STA_VLAN = 1010,
- PRISM2_HOSTAPD_SET_GENERIC_INFO_ELEM = 1011,
- PRISM2_HOSTAPD_SET_CHANNEL_FLAG = 1012,
- PRISM2_HOSTAPD_SET_REGULATORY_DOMAIN = 1013,
- PRISM2_HOSTAPD_SET_TX_QUEUE_PARAMS = 1014,
- PRISM2_HOSTAPD_GET_TX_STATS = 1016,
- PRISM2_HOSTAPD_UPDATE_IF = 1017,
- PRISM2_HOSTAPD_SCAN_REQ = 1019,
- PRISM2_STA_GET_STATE = 1020,
- PRISM2_HOSTAPD_FLUSH_IFS = 1021,
- PRISM2_HOSTAPD_SET_RADAR_PARAMS = 1023,
- PRISM2_HOSTAPD_SET_QUIET_PARAMS = 1024,
-};
-
-#define PRISM2_HOSTAPD_MAX_BUF_SIZE 2048
-#define HOSTAP_CRYPT_ALG_NAME_LEN 16
-
-#ifndef ALIGNED
-#define ALIGNED __attribute__ ((aligned))
-#endif
-
-struct prism2_hostapd_param {
- u32 cmd;
- u8 sta_addr[ETH_ALEN];
- u8 pad[2];
- union {
- struct {
- u16 aid;
- u16 capability;
- u8 supp_rates[32];
- u8 wds_flags;
-#define IEEE80211_STA_DYNAMIC_ENC BIT(0)
- u8 enc_flags;
- u16 listen_interval;
- } add_sta;
- struct {
- u32 inactive_msec;
- u32 rx_packets;
- u32 tx_packets;
- u32 rx_bytes;
- u32 tx_bytes;
- u32 current_tx_rate; /* in 100 kbps */
- u32 channel_use;
- u32 flags;
- u32 num_ps_buf_frames;
- u32 tx_retry_failed;
- u32 tx_retry_count;
- u32 last_rssi;
- u32 last_ack_rssi;
- } get_info_sta;
- struct {
- char alg[HOSTAP_CRYPT_ALG_NAME_LEN];
- u32 flags;
- u32 err;
- u8 idx;
-#define HOSTAP_SEQ_COUNTER_SIZE 8
- u8 seq_counter[HOSTAP_SEQ_COUNTER_SIZE];
- u16 key_len;
- u8 key[0] ALIGNED;
- } crypt;
- struct {
- u32 flags_and;
- u32 flags_or;
- } set_flags_sta;
- struct {
- u16 head_len;
- u16 tail_len;
- u8 data[0] ALIGNED; /* head_len + tail_len bytes */
- } beacon;
- struct {
- u16 num_modes;
- u16 flags;
- u8 data[0] ALIGNED; /* num_modes * feature data */
- } hw_features;
- struct {
- u8 now;
- s8 our_mode_only;
- s16 last_rx;
- u16 channel;
- s16 interval; /* seconds */
- s32 listen; /* microseconds */
- } scan;
- struct {
-#define WPA_TRIGGER_FAIL_TX_MIC BIT(0)
-#define WPA_TRIGGER_FAIL_TX_ICV BIT(1)
-#define WPA_TRIGGER_FAIL_RX_MIC BIT(2)
-#define WPA_TRIGGER_FAIL_RX_ICV BIT(3)
-#define WPA_TRIGGER_TX_REPLAY BIT(4)
-#define WPA_TRIGGER_TX_REPLAY_FRAG BIT(5)
-#define WPA_TRIGGER_TX_SKIP_SEQ BIT(6)
- u32 trigger;
- } wpa_trigger;
- struct {
- u16 mode; /* MODE_* */
- u16 num_supported_rates;
- u16 num_basic_rates;
- u8 data[0] ALIGNED; /* num_supported_rates * u16 +
- * num_basic_rates * u16 */
- } set_rate_sets;
- struct {
- u8 type; /* WDS, VLAN, etc */
- u8 name[IFNAMSIZ];
- u8 data[0] ALIGNED;
- } if_info;
- struct dot11_counters {
- u32 dot11TransmittedFragmentCount;
- u32 dot11MulticastTransmittedFrameCount;
- u32 dot11FailedCount;
- u32 dot11ReceivedFragmentCount;
- u32 dot11MulticastReceivedFrameCount;
- u32 dot11FCSErrorCount;
- u32 dot11TransmittedFrameCount;
- u32 dot11WEPUndecryptableCount;
- u32 dot11ACKFailureCount;
- u32 dot11RTSFailureCount;
- u32 dot11RTSSuccessCount;
- } dot11CountersTable;
- struct {
-#define LOAD_STATS_CLEAR BIT(1)
- u32 flags;
- u32 channel_use;
- } get_load_stats;
- struct {
- char vlan_name[IFNAMSIZ];
- int vlan_id;
- } set_sta_vlan;
- struct {
- u8 len;
- u8 data[0] ALIGNED;
- } set_generic_info_elem;
- struct {
- u16 mode; /* MODE_* */
- u16 chan;
- u32 flag;
- u8 power_level; /* regulatory limit in dBm */
- u8 antenna_max;
- } set_channel_flag;
- struct {
- u32 rd;
- } set_regulatory_domain;
- struct {
- u32 queue;
- s32 aifs;
- u32 cw_min;
- u32 cw_max;
- u32 burst_time; /* maximum burst time in 0.1 ms, i.e.,
- * 10 = 1 ms */
- } tx_queue_params;
- struct ieee80211_tx_stats {
- struct {
- unsigned int len; /* num packets in queue */
- unsigned int limit; /* queue len (soft) limit
- */
- unsigned int count; /* total num frames sent */
- } data[4];
- } get_tx_stats;
- struct {
- u8 ssid_len;
- u8 ssid[0] ALIGNED;
- } scan_req;
- struct {
- u32 state;
- } sta_get_state;
- struct {
-#define MLME_STA_DEAUTH 0
-#define MLME_STA_DISASSOC 1
- u16 cmd;
- u16 reason_code;
- } mlme;
- struct {
- u8 radar_firpwr_threshold;
- u8 radar_rssi_threshold;
- u8 pulse_height_threshold;
- u8 pulse_rssi_threshold;
- u8 pulse_inband_threshold;
- } radar;
- struct {
- unsigned int period;
- unsigned int offset;
- unsigned int duration;
- } quiet;
- struct {
- u8 dummy[80]; /* Make sizeof() this struct large enough
- * with some compiler versions. */
- } dummy;
- } u;
-};
-
-#define HOSTAP_CRYPT_FLAG_SET_TX_KEY BIT(0)
-#define HOSTAP_CRYPT_FLAG_PERMANENT BIT(1)
-
-#define HOSTAP_CRYPT_ERR_UNKNOWN_ALG 2
-#define HOSTAP_CRYPT_ERR_UNKNOWN_ADDR 3
-#define HOSTAP_CRYPT_ERR_CRYPT_INIT_FAILED 4
-#define HOSTAP_CRYPT_ERR_KEY_SET_FAILED 5
-#define HOSTAP_CRYPT_ERR_TX_KEY_SET_FAILED 6
-#define HOSTAP_CRYPT_ERR_CARD_CONF_FAILED 7
-
-#define HOSTAP_HW_FLAG_NULLFUNC_OK BIT(0)
-
-enum {
- IEEE80211_KEY_MGMT_NONE = 0,
- IEEE80211_KEY_MGMT_IEEE8021X = 1,
- IEEE80211_KEY_MGMT_WPA_PSK = 2,
- IEEE80211_KEY_MGMT_WPA_EAP = 3,
-};
-
-
-/* Data structures used for get_hw_features ioctl */
-struct hostapd_ioctl_hw_modes_hdr {
- int mode;
- int num_channels;
- int num_rates;
-};
-
-struct ieee80211_channel_data {
- short chan; /* channel number (IEEE 802.11) */
- short freq; /* frequency in MHz */
- int flag; /* flag for hostapd use (IEEE80211_CHAN_*) */
-};
-
-struct ieee80211_rate_data {
- int rate; /* rate in 100 kbps */
- int flags; /* IEEE80211_RATE_ flags */
-};
-
-
-/* ADD_IF, REMOVE_IF, and UPDATE_IF 'type' argument */
-enum {
- HOSTAP_IF_WDS = 1, HOSTAP_IF_VLAN = 2, HOSTAP_IF_BSS = 3,
- HOSTAP_IF_STA = 4
-};
-
-struct hostapd_if_wds {
- u8 remote_addr[ETH_ALEN];
-};
-
-struct hostapd_if_vlan {
- u8 id;
-};
-
-struct hostapd_if_bss {
- u8 bssid[ETH_ALEN];
-};
-
-struct hostapd_if_sta {
-};
-
-#endif /* HOSTAPD_IOCTL_H */
#include <linux/if_arp.h>
#include <linux/wireless.h>
#include <linux/rtnetlink.h>
-#include <net/iw_handler.h>
-#include <linux/compiler.h>
#include <linux/bitmap.h>
#include <net/cfg80211.h>
-#include "ieee80211_common.h"
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
#include "wep.h"
-#include "wpa.h"
-#include "tkip.h"
#include "wme.h"
#include "aes_ccm.h"
#include "ieee80211_led.h"
-#include "ieee80211_cfg.h"
+#include "cfg.h"
#include "debugfs.h"
#include "debugfs_netdev.h"
-#include "debugfs_key.h"
-/* privid for wiphys to determine whether they belong to us or not */
-void *mac80211_wiphy_privid = &mac80211_wiphy_privid;
-
-/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
-/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
-static const unsigned char rfc1042_header[] =
- { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
-
-/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
-static const unsigned char bridge_tunnel_header[] =
- { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
-
-/* No encapsulation header if EtherType < 0x600 (=length) */
-static const unsigned char eapol_header[] =
- { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00, 0x88, 0x8e };
-
-
-static inline void ieee80211_include_sequence(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_hdr *hdr)
-{
- /* Set the sequence number for this frame. */
- hdr->seq_ctrl = cpu_to_le16(sdata->sequence);
+/*
+ * For seeing transmitted packets on monitor interfaces
+ * we have a radiotap header too.
+ */
+struct ieee80211_tx_status_rtap_hdr {
+ struct ieee80211_radiotap_header hdr;
+ __le16 tx_flags;
+ u8 data_retries;
+} __attribute__ ((packed));
- /* Increase the sequence number. */
- sdata->sequence = (sdata->sequence + 0x10) & IEEE80211_SCTL_SEQ;
-}
+/* common interface routines */
-struct ieee80211_key_conf *
-ieee80211_key_data2conf(struct ieee80211_local *local,
- const struct ieee80211_key *data)
+static int header_parse_80211(struct sk_buff *skb, unsigned char *haddr)
{
- struct ieee80211_key_conf *conf;
-
- conf = kmalloc(sizeof(*conf) + data->keylen, GFP_ATOMIC);
- if (!conf)
- return NULL;
-
- conf->hw_key_idx = data->hw_key_idx;
- conf->alg = data->alg;
- conf->keylen = data->keylen;
- conf->flags = 0;
- if (data->force_sw_encrypt)
- conf->flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT;
- conf->keyidx = data->keyidx;
- if (data->default_tx_key)
- conf->flags |= IEEE80211_KEY_DEFAULT_TX_KEY;
- if (local->default_wep_only)
- conf->flags |= IEEE80211_KEY_DEFAULT_WEP_ONLY;
- memcpy(conf->key, data->key, data->keylen);
-
- return conf;
+ memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
+ return ETH_ALEN;
}
-struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
- int idx, size_t key_len, gfp_t flags)
+/* must be called under mdev tx lock */
+static void ieee80211_configure_filter(struct ieee80211_local *local)
{
- struct ieee80211_key *key;
+ unsigned int changed_flags;
+ unsigned int new_flags = 0;
- key = kzalloc(sizeof(struct ieee80211_key) + key_len, flags);
- if (!key)
- return NULL;
- kref_init(&key->kref);
- return key;
-}
+ if (atomic_read(&local->iff_promiscs))
+ new_flags |= FIF_PROMISC_IN_BSS;
-static void ieee80211_key_release(struct kref *kref)
-{
- struct ieee80211_key *key;
+ if (atomic_read(&local->iff_allmultis))
+ new_flags |= FIF_ALLMULTI;
- key = container_of(kref, struct ieee80211_key, kref);
- if (key->alg == ALG_CCMP)
- ieee80211_aes_key_free(key->u.ccmp.tfm);
- ieee80211_debugfs_key_remove(key);
- kfree(key);
-}
+ if (local->monitors)
+ new_flags |= FIF_CONTROL |
+ FIF_OTHER_BSS |
+ FIF_BCN_PRBRESP_PROMISC;
-void ieee80211_key_free(struct ieee80211_key *key)
-{
- if (key)
- kref_put(&key->kref, ieee80211_key_release);
-}
+ changed_flags = local->filter_flags ^ new_flags;
-static int rate_list_match(const int *rate_list, int rate)
-{
- int i;
+ /* be a bit nasty */
+ new_flags |= (1<<31);
- if (!rate_list)
- return 0;
+ local->ops->configure_filter(local_to_hw(local),
+ changed_flags, &new_flags,
+ local->mdev->mc_count,
+ local->mdev->mc_list);
- for (i = 0; rate_list[i] >= 0; i++)
- if (rate_list[i] == rate)
- return 1;
+ WARN_ON(new_flags & (1<<31));
- return 0;
+ local->filter_flags = new_flags & ~(1<<31);
}
+/* master interface */
-void ieee80211_prepare_rates(struct ieee80211_local *local,
- struct ieee80211_hw_mode *mode)
+static int ieee80211_master_open(struct net_device *dev)
{
- int i;
-
- for (i = 0; i < mode->num_rates; i++) {
- struct ieee80211_rate *rate = &mode->rates[i];
-
- rate->flags &= ~(IEEE80211_RATE_SUPPORTED |
- IEEE80211_RATE_BASIC);
-
- if (local->supp_rates[mode->mode]) {
- if (!rate_list_match(local->supp_rates[mode->mode],
- rate->rate))
- continue;
- }
-
- rate->flags |= IEEE80211_RATE_SUPPORTED;
-
- /* Use configured basic rate set if it is available. If not,
- * use defaults that are sane for most cases. */
- if (local->basic_rates[mode->mode]) {
- if (rate_list_match(local->basic_rates[mode->mode],
- rate->rate))
- rate->flags |= IEEE80211_RATE_BASIC;
- } else switch (mode->mode) {
- case MODE_IEEE80211A:
- if (rate->rate == 60 || rate->rate == 120 ||
- rate->rate == 240)
- rate->flags |= IEEE80211_RATE_BASIC;
- break;
- case MODE_IEEE80211B:
- if (rate->rate == 10 || rate->rate == 20)
- rate->flags |= IEEE80211_RATE_BASIC;
- break;
- case MODE_ATHEROS_TURBO:
- if (rate->rate == 120 || rate->rate == 240 ||
- rate->rate == 480)
- rate->flags |= IEEE80211_RATE_BASIC;
- break;
- case MODE_IEEE80211G:
- if (rate->rate == 10 || rate->rate == 20 ||
- rate->rate == 55 || rate->rate == 110)
- rate->flags |= IEEE80211_RATE_BASIC;
- break;
- }
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata;
+ int res = -EOPNOTSUPP;
- /* Set ERP and MANDATORY flags based on phymode */
- switch (mode->mode) {
- case MODE_IEEE80211A:
- if (rate->rate == 60 || rate->rate == 120 ||
- rate->rate == 240)
- rate->flags |= IEEE80211_RATE_MANDATORY;
- break;
- case MODE_IEEE80211B:
- if (rate->rate == 10)
- rate->flags |= IEEE80211_RATE_MANDATORY;
- break;
- case MODE_ATHEROS_TURBO:
- break;
- case MODE_IEEE80211G:
- if (rate->rate == 10 || rate->rate == 20 ||
- rate->rate == 55 || rate->rate == 110 ||
- rate->rate == 60 || rate->rate == 120 ||
- rate->rate == 240)
- rate->flags |= IEEE80211_RATE_MANDATORY;
+ /* we hold the RTNL here so can safely walk the list */
+ list_for_each_entry(sdata, &local->interfaces, list) {
+ if (sdata->dev != dev && netif_running(sdata->dev)) {
+ res = 0;
break;
}
- if (ieee80211_is_erp_rate(mode->mode, rate->rate))
- rate->flags |= IEEE80211_RATE_ERP;
}
+ return res;
}
-
-static void ieee80211_key_threshold_notify(struct net_device *dev,
- struct ieee80211_key *key,
- struct sta_info *sta)
+static int ieee80211_master_stop(struct net_device *dev)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- struct ieee80211_msg_key_notification *msg;
-
- /* if no one will get it anyway, don't even allocate it.
- * unlikely because this is only relevant for APs
- * where the device must be open... */
- if (unlikely(!local->apdev))
- return;
-
- skb = dev_alloc_skb(sizeof(struct ieee80211_frame_info) +
- sizeof(struct ieee80211_msg_key_notification));
- if (!skb)
- return;
-
- skb_reserve(skb, sizeof(struct ieee80211_frame_info));
- msg = (struct ieee80211_msg_key_notification *)
- skb_put(skb, sizeof(struct ieee80211_msg_key_notification));
- msg->tx_rx_count = key->tx_rx_count;
- memcpy(msg->ifname, dev->name, IFNAMSIZ);
- if (sta)
- memcpy(msg->addr, sta->addr, ETH_ALEN);
- else
- memset(msg->addr, 0xff, ETH_ALEN);
-
- key->tx_rx_count = 0;
-
- ieee80211_rx_mgmt(local, skb, NULL,
- ieee80211_msg_key_threshold_notification);
-}
-
-
-static u8 * ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len)
-{
- u16 fc;
-
- if (len < 24)
- return NULL;
-
- fc = le16_to_cpu(hdr->frame_control);
-
- switch (fc & IEEE80211_FCTL_FTYPE) {
- case IEEE80211_FTYPE_DATA:
- switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
- case IEEE80211_FCTL_TODS:
- return hdr->addr1;
- case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
- return NULL;
- case IEEE80211_FCTL_FROMDS:
- return hdr->addr2;
- case 0:
- return hdr->addr3;
- }
- break;
- case IEEE80211_FTYPE_MGMT:
- return hdr->addr3;
- case IEEE80211_FTYPE_CTL:
- if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)
- return hdr->addr1;
- else
- return NULL;
- }
-
- return NULL;
-}
-
-int ieee80211_get_hdrlen(u16 fc)
-{
- int hdrlen = 24;
+ struct ieee80211_sub_if_data *sdata;
- switch (fc & IEEE80211_FCTL_FTYPE) {
- case IEEE80211_FTYPE_DATA:
- if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
- hdrlen = 30; /* Addr4 */
- /*
- * The QoS Control field is two bytes and its presence is
- * indicated by the IEEE80211_STYPE_QOS_DATA bit. Add 2 to
- * hdrlen if that bit is set.
- * This works by masking out the bit and shifting it to
- * bit position 1 so the result has the value 0 or 2.
- */
- hdrlen += (fc & IEEE80211_STYPE_QOS_DATA)
- >> (ilog2(IEEE80211_STYPE_QOS_DATA)-1);
- break;
- case IEEE80211_FTYPE_CTL:
- /*
- * ACK and CTS are 10 bytes, all others 16. To see how
- * to get this condition consider
- * subtype mask: 0b0000000011110000 (0x00F0)
- * ACK subtype: 0b0000000011010000 (0x00D0)
- * CTS subtype: 0b0000000011000000 (0x00C0)
- * bits that matter: ^^^ (0x00E0)
- * value of those: 0b0000000011000000 (0x00C0)
- */
- if ((fc & 0xE0) == 0xC0)
- hdrlen = 10;
- else
- hdrlen = 16;
- break;
- }
+ /* we hold the RTNL here so can safely walk the list */
+ list_for_each_entry(sdata, &local->interfaces, list)
+ if (sdata->dev != dev && netif_running(sdata->dev))
+ dev_close(sdata->dev);
- return hdrlen;
+ return 0;
}
-EXPORT_SYMBOL(ieee80211_get_hdrlen);
-int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
+static void ieee80211_master_set_multicast_list(struct net_device *dev)
{
- const struct ieee80211_hdr *hdr = (const struct ieee80211_hdr *) skb->data;
- int hdrlen;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- if (unlikely(skb->len < 10))
- return 0;
- hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control));
- if (unlikely(hdrlen > skb->len))
- return 0;
- return hdrlen;
+ ieee80211_configure_filter(local);
}
-EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
-
-static int ieee80211_get_radiotap_len(struct sk_buff *skb)
-{
- struct ieee80211_radiotap_header *hdr =
- (struct ieee80211_radiotap_header *) skb->data;
- return le16_to_cpu(hdr->it_len);
-}
+/* regular interfaces */
-#ifdef CONFIG_MAC80211_LOWTX_FRAME_DUMP
-static void ieee80211_dump_frame(const char *ifname, const char *title,
- const struct sk_buff *skb)
+static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
{
- const struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc;
- int hdrlen;
-
- printk(KERN_DEBUG "%s: %s (len=%d)", ifname, title, skb->len);
- if (skb->len < 4) {
- printk("\n");
- return;
+ /* FIX: what would be proper limits for MTU?
+ * This interface uses 802.3 frames. */
+ if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6) {
+ printk(KERN_WARNING "%s: invalid MTU %d\n",
+ dev->name, new_mtu);
+ return -EINVAL;
}
- fc = le16_to_cpu(hdr->frame_control);
- hdrlen = ieee80211_get_hdrlen(fc);
- if (hdrlen > skb->len)
- hdrlen = skb->len;
- if (hdrlen >= 4)
- printk(" FC=0x%04x DUR=0x%04x",
- fc, le16_to_cpu(hdr->duration_id));
- if (hdrlen >= 10)
- printk(" A1=" MAC_FMT, MAC_ARG(hdr->addr1));
- if (hdrlen >= 16)
- printk(" A2=" MAC_FMT, MAC_ARG(hdr->addr2));
- if (hdrlen >= 24)
- printk(" A3=" MAC_FMT, MAC_ARG(hdr->addr3));
- if (hdrlen >= 30)
- printk(" A4=" MAC_FMT, MAC_ARG(hdr->addr4));
- printk("\n");
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu);
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+ dev->mtu = new_mtu;
+ return 0;
}
-#else /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
-static inline void ieee80211_dump_frame(const char *ifname, const char *title,
- struct sk_buff *skb)
+
+static inline int identical_mac_addr_allowed(int type1, int type2)
{
+ return (type1 == IEEE80211_IF_TYPE_MNTR ||
+ type2 == IEEE80211_IF_TYPE_MNTR ||
+ (type1 == IEEE80211_IF_TYPE_AP &&
+ type2 == IEEE80211_IF_TYPE_WDS) ||
+ (type1 == IEEE80211_IF_TYPE_WDS &&
+ (type2 == IEEE80211_IF_TYPE_WDS ||
+ type2 == IEEE80211_IF_TYPE_AP)) ||
+ (type1 == IEEE80211_IF_TYPE_AP &&
+ type2 == IEEE80211_IF_TYPE_VLAN) ||
+ (type1 == IEEE80211_IF_TYPE_VLAN &&
+ (type2 == IEEE80211_IF_TYPE_AP ||
+ type2 == IEEE80211_IF_TYPE_VLAN)));
}
-#endif /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
-
-static int ieee80211_is_eapol(const struct sk_buff *skb)
+static int ieee80211_open(struct net_device *dev)
{
- const struct ieee80211_hdr *hdr;
- u16 fc;
- int hdrlen;
-
- if (unlikely(skb->len < 10))
- return 0;
-
- hdr = (const struct ieee80211_hdr *) skb->data;
- fc = le16_to_cpu(hdr->frame_control);
-
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
- return 0;
-
- hdrlen = ieee80211_get_hdrlen(fc);
+ struct ieee80211_sub_if_data *sdata, *nsdata;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_if_init_conf conf;
+ int res;
- if (unlikely(skb->len >= hdrlen + sizeof(eapol_header) &&
- memcmp(skb->data + hdrlen, eapol_header,
- sizeof(eapol_header)) == 0))
- return 1;
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- return 0;
-}
+ /* we hold the RTNL here so can safely walk the list */
+ list_for_each_entry(nsdata, &local->interfaces, list) {
+ struct net_device *ndev = nsdata->dev;
+ if (ndev != dev && ndev != local->mdev && netif_running(ndev) &&
+ compare_ether_addr(dev->dev_addr, ndev->dev_addr) == 0) {
+ /*
+ * check whether it may have the same address
+ */
+ if (!identical_mac_addr_allowed(sdata->type,
+ nsdata->type))
+ return -ENOTUNIQ;
-static ieee80211_txrx_result
-ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
-{
- struct rate_control_extra extra;
-
- memset(&extra, 0, sizeof(extra));
- extra.mode = tx->u.tx.mode;
- extra.mgmt_data = tx->sdata &&
- tx->sdata->type == IEEE80211_IF_TYPE_MGMT;
- extra.ethertype = tx->ethertype;
-
- tx->u.tx.rate = rate_control_get_rate(tx->local, tx->dev, tx->skb,
- &extra);
- if (unlikely(extra.probe != NULL)) {
- tx->u.tx.control->flags |= IEEE80211_TXCTL_RATE_CTRL_PROBE;
- tx->u.tx.probe_last_frag = 1;
- tx->u.tx.control->alt_retry_rate = tx->u.tx.rate->val;
- tx->u.tx.rate = extra.probe;
- } else {
- tx->u.tx.control->alt_retry_rate = -1;
- }
- if (!tx->u.tx.rate)
- return TXRX_DROP;
- if (tx->u.tx.mode->mode == MODE_IEEE80211G &&
- tx->local->cts_protect_erp_frames && tx->fragmented &&
- extra.nonerp) {
- tx->u.tx.last_frag_rate = tx->u.tx.rate;
- tx->u.tx.probe_last_frag = extra.probe ? 1 : 0;
-
- tx->u.tx.rate = extra.nonerp;
- tx->u.tx.control->rate = extra.nonerp;
- tx->u.tx.control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
- } else {
- tx->u.tx.last_frag_rate = tx->u.tx.rate;
- tx->u.tx.control->rate = tx->u.tx.rate;
+ /*
+ * can only add VLANs to enabled APs
+ */
+ if (sdata->type == IEEE80211_IF_TYPE_VLAN &&
+ nsdata->type == IEEE80211_IF_TYPE_AP &&
+ netif_running(nsdata->dev))
+ sdata->u.vlan.ap = nsdata;
+ }
}
- tx->u.tx.control->tx_rate = tx->u.tx.rate->val;
- if ((tx->u.tx.rate->flags & IEEE80211_RATE_PREAMBLE2) &&
- tx->local->short_preamble &&
- (!tx->sta || (tx->sta->flags & WLAN_STA_SHORT_PREAMBLE))) {
- tx->u.tx.short_preamble = 1;
- tx->u.tx.control->tx_rate = tx->u.tx.rate->val2;
+
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_WDS:
+ if (is_zero_ether_addr(sdata->u.wds.remote_addr))
+ return -ENOLINK;
+ break;
+ case IEEE80211_IF_TYPE_VLAN:
+ if (!sdata->u.vlan.ap)
+ return -ENOLINK;
+ break;
+ case IEEE80211_IF_TYPE_AP:
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_MNTR:
+ case IEEE80211_IF_TYPE_IBSS:
+ /* no special treatment */
+ break;
+ case IEEE80211_IF_TYPE_INVALID:
+ /* cannot happen */
+ WARN_ON(1);
+ break;
}
- return TXRX_CONTINUE;
-}
+ if (local->open_count == 0) {
+ res = 0;
+ if (local->ops->start)
+ res = local->ops->start(local_to_hw(local));
+ if (res)
+ return res;
+ }
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_VLAN:
+ list_add(&sdata->u.vlan.list, &sdata->u.vlan.ap->u.ap.vlans);
+ /* no need to tell driver */
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ /* must be before the call to ieee80211_configure_filter */
+ local->monitors++;
+ if (local->monitors == 1) {
+ netif_tx_lock_bh(local->mdev);
+ ieee80211_configure_filter(local);
+ netif_tx_unlock_bh(local->mdev);
-static ieee80211_txrx_result
-ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx)
-{
- if (tx->sta)
- tx->u.tx.control->key_idx = tx->sta->key_idx_compression;
- else
- tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
-
- if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
- tx->key = NULL;
- else if (tx->sta && tx->sta->key)
- tx->key = tx->sta->key;
- else if (tx->sdata->default_key)
- tx->key = tx->sdata->default_key;
- else if (tx->sdata->drop_unencrypted &&
- !(tx->sdata->eapol && ieee80211_is_eapol(tx->skb))) {
- I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted);
- return TXRX_DROP;
- } else
- tx->key = NULL;
-
- if (tx->key) {
- tx->key->tx_rx_count++;
- if (unlikely(tx->local->key_tx_rx_threshold &&
- tx->key->tx_rx_count >
- tx->local->key_tx_rx_threshold)) {
- ieee80211_key_threshold_notify(tx->dev, tx->key,
- tx->sta);
+ local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
+ ieee80211_hw_config(local);
}
- }
-
- return TXRX_CONTINUE;
-}
+ break;
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ sdata->u.sta.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+ /* fall through */
+ default:
+ conf.if_id = dev->ifindex;
+ conf.type = sdata->type;
+ conf.mac_addr = dev->dev_addr;
+ res = local->ops->add_interface(local_to_hw(local), &conf);
+ if (res && !local->open_count && local->ops->stop)
+ local->ops->stop(local_to_hw(local));
+ if (res)
+ return res;
+ ieee80211_if_config(dev);
+ ieee80211_reset_erp_info(dev);
+ ieee80211_enable_keys(sdata);
-static ieee80211_txrx_result
-ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- size_t hdrlen, per_fragm, num_fragm, payload_len, left;
- struct sk_buff **frags, *first, *frag;
- int i;
- u16 seq;
- u8 *pos;
- int frag_threshold = tx->local->fragmentation_threshold;
-
- if (!tx->fragmented)
- return TXRX_CONTINUE;
-
- first = tx->skb;
-
- hdrlen = ieee80211_get_hdrlen(tx->fc);
- payload_len = first->len - hdrlen;
- per_fragm = frag_threshold - hdrlen - FCS_LEN;
- num_fragm = (payload_len + per_fragm - 1) / per_fragm;
-
- frags = kzalloc(num_fragm * sizeof(struct sk_buff *), GFP_ATOMIC);
- if (!frags)
- goto fail;
-
- hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREFRAGS);
- seq = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ;
- pos = first->data + hdrlen + per_fragm;
- left = payload_len - per_fragm;
- for (i = 0; i < num_fragm - 1; i++) {
- struct ieee80211_hdr *fhdr;
- size_t copylen;
-
- if (left <= 0)
- goto fail;
-
- /* reserve enough extra head and tail room for possible
- * encryption */
- frag = frags[i] =
- dev_alloc_skb(tx->local->hw.extra_tx_headroom +
- frag_threshold +
- IEEE80211_ENCRYPT_HEADROOM +
- IEEE80211_ENCRYPT_TAILROOM);
- if (!frag)
- goto fail;
- /* Make sure that all fragments use the same priority so
- * that they end up using the same TX queue */
- frag->priority = first->priority;
- skb_reserve(frag, tx->local->hw.extra_tx_headroom +
- IEEE80211_ENCRYPT_HEADROOM);
- fhdr = (struct ieee80211_hdr *) skb_put(frag, hdrlen);
- memcpy(fhdr, first->data, hdrlen);
- if (i == num_fragm - 2)
- fhdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREFRAGS);
- fhdr->seq_ctrl = cpu_to_le16(seq | ((i + 1) & IEEE80211_SCTL_FRAG));
- copylen = left > per_fragm ? per_fragm : left;
- memcpy(skb_put(frag, copylen), pos, copylen);
-
- pos += copylen;
- left -= copylen;
+ if (sdata->type == IEEE80211_IF_TYPE_STA &&
+ !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
+ netif_carrier_off(dev);
+ else
+ netif_carrier_on(dev);
}
- skb_trim(first, hdrlen + per_fragm);
-
- tx->u.tx.num_extra_frag = num_fragm - 1;
- tx->u.tx.extra_frag = frags;
- return TXRX_CONTINUE;
-
- fail:
- printk(KERN_DEBUG "%s: failed to fragment frame\n", tx->dev->name);
- if (frags) {
- for (i = 0; i < num_fragm - 1; i++)
- if (frags[i])
- dev_kfree_skb(frags[i]);
- kfree(frags);
+ if (local->open_count == 0) {
+ res = dev_open(local->mdev);
+ WARN_ON(res);
+ tasklet_enable(&local->tx_pending_tasklet);
+ tasklet_enable(&local->tasklet);
}
- I802_DEBUG_INC(tx->local->tx_handlers_drop_fragment);
- return TXRX_DROP;
-}
-
-static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb)
-{
- if (tx->key->force_sw_encrypt) {
- if (ieee80211_wep_encrypt(tx->local, skb, tx->key))
- return -1;
- } else {
- tx->u.tx.control->key_idx = tx->key->hw_key_idx;
- if (tx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) {
- if (ieee80211_wep_add_iv(tx->local, skb, tx->key) ==
- NULL)
- return -1;
- }
- }
- return 0;
-}
+ local->open_count++;
+ netif_start_queue(dev);
-void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
-
- hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
- if (tx->u.tx.extra_frag) {
- struct ieee80211_hdr *fhdr;
- int i;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- fhdr = (struct ieee80211_hdr *)
- tx->u.tx.extra_frag[i]->data;
- fhdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
- }
- }
+ return 0;
}
-
-static ieee80211_txrx_result
-ieee80211_tx_h_wep_encrypt(struct ieee80211_txrx_data *tx)
+static int ieee80211_stop(struct net_device *dev)
{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- u16 fc;
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_if_init_conf conf;
- fc = le16_to_cpu(hdr->frame_control);
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (!tx->key || tx->key->alg != ALG_WEP ||
- ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
- ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)))
- return TXRX_CONTINUE;
+ netif_stop_queue(dev);
- tx->u.tx.control->iv_len = WEP_IV_LEN;
- tx->u.tx.control->icv_len = WEP_ICV_LEN;
- ieee80211_tx_set_iswep(tx);
+ dev_mc_unsync(local->mdev, dev);
- if (wep_encrypt_skb(tx, tx->skb) < 0) {
- I802_DEBUG_INC(tx->local->tx_handlers_drop_wep);
- return TXRX_DROP;
- }
+ /* down all dependent devices, that is VLANs */
+ if (sdata->type == IEEE80211_IF_TYPE_AP) {
+ struct ieee80211_sub_if_data *vlan, *tmp;
- if (tx->u.tx.extra_frag) {
- int i;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- if (wep_encrypt_skb(tx, tx->u.tx.extra_frag[i]) < 0) {
- I802_DEBUG_INC(tx->local->
- tx_handlers_drop_wep);
- return TXRX_DROP;
- }
- }
+ list_for_each_entry_safe(vlan, tmp, &sdata->u.ap.vlans,
+ u.vlan.list)
+ dev_close(vlan->dev);
+ WARN_ON(!list_empty(&sdata->u.ap.vlans));
}
- return TXRX_CONTINUE;
-}
-
-
-static int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
- int rate, int erp, int short_preamble)
-{
- int dur;
+ local->open_count--;
- /* calculate duration (in microseconds, rounded up to next higher
- * integer if it includes a fractional microsecond) to send frame of
- * len bytes (does not include FCS) at the given rate. Duration will
- * also include SIFS.
- *
- * rate is in 100 kbps, so divident is multiplied by 10 in the
- * DIV_ROUND_UP() operations.
- */
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_VLAN:
+ list_del(&sdata->u.vlan.list);
+ sdata->u.vlan.ap = NULL;
+ /* no need to tell driver */
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ local->monitors--;
+ if (local->monitors == 0) {
+ netif_tx_lock_bh(local->mdev);
+ ieee80211_configure_filter(local);
+ netif_tx_unlock_bh(local->mdev);
- if (local->hw.conf.phymode == MODE_IEEE80211A || erp ||
- local->hw.conf.phymode == MODE_ATHEROS_TURBO) {
- /*
- * OFDM:
- *
- * N_DBPS = DATARATE x 4
- * N_SYM = Ceiling((16+8xLENGTH+6) / N_DBPS)
- * (16 = SIGNAL time, 6 = tail bits)
- * TXTIME = T_PREAMBLE + T_SIGNAL + T_SYM x N_SYM + Signal Ext
- *
- * T_SYM = 4 usec
- * 802.11a - 17.5.2: aSIFSTime = 16 usec
- * 802.11g - 19.8.4: aSIFSTime = 10 usec +
- * signal ext = 6 usec
- */
- /* FIX: Atheros Turbo may have different (shorter) duration? */
- dur = 16; /* SIFS + signal ext */
- dur += 16; /* 17.3.2.3: T_PREAMBLE = 16 usec */
- dur += 4; /* 17.3.2.3: T_SIGNAL = 4 usec */
- dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10,
- 4 * rate); /* T_SYM x N_SYM */
- } else {
+ local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
+ ieee80211_hw_config(local);
+ }
+ break;
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ sdata->u.sta.state = IEEE80211_DISABLED;
+ del_timer_sync(&sdata->u.sta.timer);
/*
- * 802.11b or 802.11g with 802.11b compatibility:
- * 18.3.4: TXTIME = PreambleLength + PLCPHeaderTime +
- * Ceiling(((LENGTH+PBCC)x8)/DATARATE). PBCC=0.
- *
- * 802.11 (DS): 15.3.3, 802.11b: 18.3.4
- * aSIFSTime = 10 usec
- * aPreambleLength = 144 usec or 72 usec with short preamble
- * aPLCPHeaderLength = 48 usec or 24 usec with short preamble
+ * When we get here, the interface is marked down.
+ * Call synchronize_rcu() to wait for the RX path
+ * should it be using the interface and enqueuing
+ * frames at this very time on another CPU.
*/
- dur = 10; /* aSIFSTime = 10 usec */
- dur += short_preamble ? (72 + 24) : (144 + 48);
+ synchronize_rcu();
+ skb_queue_purge(&sdata->u.sta.skb_queue);
- dur += DIV_ROUND_UP(8 * (len + 4) * 10, rate);
+ if (!local->ops->hw_scan &&
+ local->scan_dev == sdata->dev) {
+ local->sta_scanning = 0;
+ cancel_delayed_work(&local->scan_work);
+ }
+ flush_workqueue(local->hw.workqueue);
+ /* fall through */
+ default:
+ conf.if_id = dev->ifindex;
+ conf.type = sdata->type;
+ conf.mac_addr = dev->dev_addr;
+ /* disable all keys for as long as this netdev is down */
+ ieee80211_disable_keys(sdata);
+ local->ops->remove_interface(local_to_hw(local), &conf);
}
- return dur;
-}
-
-
-/* Exported duration function for driver use */
-__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw,
- size_t frame_len, int rate)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- u16 dur;
- int erp;
-
- erp = ieee80211_is_erp_rate(hw->conf.phymode, rate);
- dur = ieee80211_frame_duration(local, frame_len, rate,
- erp, local->short_preamble);
-
- return cpu_to_le16(dur);
-}
-EXPORT_SYMBOL(ieee80211_generic_frame_duration);
-
+ if (local->open_count == 0) {
+ if (netif_running(local->mdev))
+ dev_close(local->mdev);
-static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr,
- int next_frag_len)
-{
- int rate, mrate, erp, dur, i;
- struct ieee80211_rate *txrate = tx->u.tx.rate;
- struct ieee80211_local *local = tx->local;
- struct ieee80211_hw_mode *mode = tx->u.tx.mode;
+ if (local->ops->stop)
+ local->ops->stop(local_to_hw(local));
- erp = txrate->flags & IEEE80211_RATE_ERP;
-
- /*
- * data and mgmt (except PS Poll):
- * - during CFP: 32768
- * - during contention period:
- * if addr1 is group address: 0
- * if more fragments = 0 and addr1 is individual address: time to
- * transmit one ACK plus SIFS
- * if more fragments = 1 and addr1 is individual address: time to
- * transmit next fragment plus 2 x ACK plus 3 x SIFS
- *
- * IEEE 802.11, 9.6:
- * - control response frame (CTS or ACK) shall be transmitted using the
- * same rate as the immediately previous frame in the frame exchange
- * sequence, if this rate belongs to the PHY mandatory rates, or else
- * at the highest possible rate belonging to the PHY rates in the
- * BSSBasicRateSet
- */
-
- if ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) {
- /* TODO: These control frames are not currently sent by
- * 80211.o, but should they be implemented, this function
- * needs to be updated to support duration field calculation.
- *
- * RTS: time needed to transmit pending data/mgmt frame plus
- * one CTS frame plus one ACK frame plus 3 x SIFS
- * CTS: duration of immediately previous RTS minus time
- * required to transmit CTS and its SIFS
- * ACK: 0 if immediately previous directed data/mgmt had
- * more=0, with more=1 duration in ACK frame is duration
- * from previous frame minus time needed to transmit ACK
- * and its SIFS
- * PS Poll: BIT(15) | BIT(14) | aid
- */
- return 0;
- }
-
- /* data/mgmt */
- if (0 /* FIX: data/mgmt during CFP */)
- return 32768;
-
- if (group_addr) /* Group address as the destination - no ACK */
- return 0;
-
- /* Individual destination address:
- * IEEE 802.11, Ch. 9.6 (after IEEE 802.11g changes)
- * CTS and ACK frames shall be transmitted using the highest rate in
- * basic rate set that is less than or equal to the rate of the
- * immediately previous frame and that is using the same modulation
- * (CCK or OFDM). If no basic rate set matches with these requirements,
- * the highest mandatory rate of the PHY that is less than or equal to
- * the rate of the previous frame is used.
- * Mandatory rates for IEEE 802.11g PHY: 1, 2, 5.5, 11, 6, 12, 24 Mbps
- */
- rate = -1;
- mrate = 10; /* use 1 Mbps if everything fails */
- for (i = 0; i < mode->num_rates; i++) {
- struct ieee80211_rate *r = &mode->rates[i];
- if (r->rate > txrate->rate)
- break;
-
- if (IEEE80211_RATE_MODULATION(txrate->flags) !=
- IEEE80211_RATE_MODULATION(r->flags))
- continue;
-
- if (r->flags & IEEE80211_RATE_BASIC)
- rate = r->rate;
- else if (r->flags & IEEE80211_RATE_MANDATORY)
- mrate = r->rate;
- }
- if (rate == -1) {
- /* No matching basic rate found; use highest suitable mandatory
- * PHY rate */
- rate = mrate;
- }
-
- /* Time needed to transmit ACK
- * (10 bytes + 4-byte FCS = 112 bits) plus SIFS; rounded up
- * to closest integer */
-
- dur = ieee80211_frame_duration(local, 10, rate, erp,
- local->short_preamble);
-
- if (next_frag_len) {
- /* Frame is fragmented: duration increases with time needed to
- * transmit next fragment plus ACK and 2 x SIFS. */
- dur *= 2; /* ACK + SIFS */
- /* next fragment */
- dur += ieee80211_frame_duration(local, next_frag_len,
- txrate->rate, erp,
- local->short_preamble);
- }
-
- return dur;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- u16 dur;
- struct ieee80211_tx_control *control = tx->u.tx.control;
- struct ieee80211_hw_mode *mode = tx->u.tx.mode;
-
- if (!is_multicast_ether_addr(hdr->addr1)) {
- if (tx->skb->len + FCS_LEN > tx->local->rts_threshold &&
- tx->local->rts_threshold < IEEE80211_MAX_RTS_THRESHOLD) {
- control->flags |= IEEE80211_TXCTL_USE_RTS_CTS;
- control->retry_limit =
- tx->local->long_retry_limit;
- } else {
- control->retry_limit =
- tx->local->short_retry_limit;
- }
- } else {
- control->retry_limit = 1;
- }
-
- if (tx->fragmented) {
- /* Do not use multiple retry rates when sending fragmented
- * frames.
- * TODO: The last fragment could still use multiple retry
- * rates. */
- control->alt_retry_rate = -1;
- }
-
- /* Use CTS protection for unicast frames sent using extended rates if
- * there are associated non-ERP stations and RTS/CTS is not configured
- * for the frame. */
- if (mode->mode == MODE_IEEE80211G &&
- (tx->u.tx.rate->flags & IEEE80211_RATE_ERP) &&
- tx->u.tx.unicast &&
- tx->local->cts_protect_erp_frames &&
- !(control->flags & IEEE80211_TXCTL_USE_RTS_CTS))
- control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT;
-
- /* Setup duration field for the first fragment of the frame. Duration
- * for remaining fragments will be updated when they are being sent
- * to low-level driver in ieee80211_tx(). */
- dur = ieee80211_duration(tx, is_multicast_ether_addr(hdr->addr1),
- tx->fragmented ? tx->u.tx.extra_frag[0]->len :
- 0);
- hdr->duration_id = cpu_to_le16(dur);
-
- if ((control->flags & IEEE80211_TXCTL_USE_RTS_CTS) ||
- (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) {
- struct ieee80211_rate *rate;
-
- /* Do not use multiple retry rates when using RTS/CTS */
- control->alt_retry_rate = -1;
-
- /* Use min(data rate, max base rate) as CTS/RTS rate */
- rate = tx->u.tx.rate;
- while (rate > mode->rates &&
- !(rate->flags & IEEE80211_RATE_BASIC))
- rate--;
-
- control->rts_cts_rate = rate->val;
- control->rts_rate = rate;
- }
-
- if (tx->sta) {
- tx->sta->tx_packets++;
- tx->sta->tx_fragments++;
- tx->sta->tx_bytes += tx->skb->len;
- if (tx->u.tx.extra_frag) {
- int i;
- tx->sta->tx_fragments += tx->u.tx.num_extra_frag;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- tx->sta->tx_bytes +=
- tx->u.tx.extra_frag[i]->len;
- }
- }
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
-{
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- struct sk_buff *skb = tx->skb;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- u32 sta_flags;
-
- if (unlikely(tx->local->sta_scanning != 0) &&
- ((tx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (tx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PROBE_REQ))
- return TXRX_DROP;
-
- if (tx->u.tx.ps_buffered)
- return TXRX_CONTINUE;
-
- sta_flags = tx->sta ? tx->sta->flags : 0;
-
- if (likely(tx->u.tx.unicast)) {
- if (unlikely(!(sta_flags & WLAN_STA_ASSOC) &&
- tx->sdata->type != IEEE80211_IF_TYPE_IBSS &&
- (tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: dropped data frame to not "
- "associated station " MAC_FMT "\n",
- tx->dev->name, MAC_ARG(hdr->addr1));
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- I802_DEBUG_INC(tx->local->tx_handlers_drop_not_assoc);
- return TXRX_DROP;
- }
- } else {
- if (unlikely((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- tx->local->num_sta == 0 &&
- !tx->local->allow_broadcast_always &&
- tx->sdata->type != IEEE80211_IF_TYPE_IBSS)) {
- /*
- * No associated STAs - no need to send multicast
- * frames.
- */
- return TXRX_DROP;
- }
- return TXRX_CONTINUE;
- }
-
- if (unlikely(!tx->u.tx.mgmt_interface && tx->sdata->ieee802_1x &&
- !(sta_flags & WLAN_STA_AUTHORIZED))) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: dropped frame to " MAC_FMT
- " (unauthorized port)\n", tx->dev->name,
- MAC_ARG(hdr->addr1));
-#endif
- I802_DEBUG_INC(tx->local->tx_handlers_drop_unauth_port);
- return TXRX_DROP;
- }
-
- return TXRX_CONTINUE;
-}
-
-static ieee80211_txrx_result
-ieee80211_tx_h_sequence(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
-
- if (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control)) >= 24)
- ieee80211_include_sequence(tx->sdata, hdr);
-
- return TXRX_CONTINUE;
-}
-
-/* This function is called whenever the AP is about to exceed the maximum limit
- * of buffered frames for power saving STAs. This situation should not really
- * happen often during normal operation, so dropping the oldest buffered packet
- * from each queue should be OK to make some room for new frames. */
-static void purge_old_ps_buffers(struct ieee80211_local *local)
-{
- int total = 0, purged = 0;
- struct sk_buff *skb;
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
-
- read_lock(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list) {
- struct ieee80211_if_ap *ap;
- if (sdata->dev == local->mdev ||
- sdata->type != IEEE80211_IF_TYPE_AP)
- continue;
- ap = &sdata->u.ap;
- skb = skb_dequeue(&ap->ps_bc_buf);
- if (skb) {
- purged++;
- dev_kfree_skb(skb);
- }
- total += skb_queue_len(&ap->ps_bc_buf);
- }
- read_unlock(&local->sub_if_lock);
-
- spin_lock_bh(&local->sta_lock);
- list_for_each_entry(sta, &local->sta_list, list) {
- skb = skb_dequeue(&sta->ps_tx_buf);
- if (skb) {
- purged++;
- dev_kfree_skb(skb);
- }
- total += skb_queue_len(&sta->ps_tx_buf);
- }
- spin_unlock_bh(&local->sta_lock);
-
- local->total_ps_buffered = total;
- printk(KERN_DEBUG "%s: PS buffers full - purged %d frames\n",
- local->mdev->name, purged);
-}
-
-
-static inline ieee80211_txrx_result
-ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx)
-{
- /* broadcast/multicast frame */
- /* If any of the associated stations is in power save mode,
- * the frame is buffered to be sent after DTIM beacon frame */
- if ((tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) &&
- tx->sdata->type != IEEE80211_IF_TYPE_WDS &&
- tx->sdata->bss && atomic_read(&tx->sdata->bss->num_sta_ps) &&
- !(tx->fc & IEEE80211_FCTL_ORDER)) {
- if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
- purge_old_ps_buffers(tx->local);
- if (skb_queue_len(&tx->sdata->bss->ps_bc_buf) >=
- AP_MAX_BC_BUFFER) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: BC TX buffer full - "
- "dropping the oldest frame\n",
- tx->dev->name);
- }
- dev_kfree_skb(skb_dequeue(&tx->sdata->bss->ps_bc_buf));
- } else
- tx->local->total_ps_buffered++;
- skb_queue_tail(&tx->sdata->bss->ps_bc_buf, tx->skb);
- return TXRX_QUEUED;
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static inline ieee80211_txrx_result
-ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
-{
- struct sta_info *sta = tx->sta;
-
- if (unlikely(!sta ||
- ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT &&
- (tx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP)))
- return TXRX_CONTINUE;
-
- if (unlikely((sta->flags & WLAN_STA_PS) && !sta->pspoll)) {
- struct ieee80211_tx_packet_data *pkt_data;
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "STA " MAC_FMT " aid %d: PS buffer (entries "
- "before %d)\n",
- MAC_ARG(sta->addr), sta->aid,
- skb_queue_len(&sta->ps_tx_buf));
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
- sta->flags |= WLAN_STA_TIM;
- if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
- purge_old_ps_buffers(tx->local);
- if (skb_queue_len(&sta->ps_tx_buf) >= STA_MAX_TX_BUFFER) {
- struct sk_buff *old = skb_dequeue(&sta->ps_tx_buf);
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: STA " MAC_FMT " TX "
- "buffer full - dropping oldest frame\n",
- tx->dev->name, MAC_ARG(sta->addr));
- }
- dev_kfree_skb(old);
- } else
- tx->local->total_ps_buffered++;
- /* Queue frame to be sent after STA sends an PS Poll frame */
- if (skb_queue_empty(&sta->ps_tx_buf)) {
- if (tx->local->ops->set_tim)
- tx->local->ops->set_tim(local_to_hw(tx->local),
- sta->aid, 1);
- if (tx->sdata->bss)
- bss_tim_set(tx->local, tx->sdata->bss, sta->aid);
- }
- pkt_data = (struct ieee80211_tx_packet_data *)tx->skb->cb;
- pkt_data->jiffies = jiffies;
- skb_queue_tail(&sta->ps_tx_buf, tx->skb);
- return TXRX_QUEUED;
- }
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- else if (unlikely(sta->flags & WLAN_STA_PS)) {
- printk(KERN_DEBUG "%s: STA " MAC_FMT " in PS mode, but pspoll "
- "set -> send frame\n", tx->dev->name,
- MAC_ARG(sta->addr));
- }
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
- sta->pspoll = 0;
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx)
-{
- if (unlikely(tx->u.tx.ps_buffered))
- return TXRX_CONTINUE;
-
- if (tx->u.tx.unicast)
- return ieee80211_tx_h_unicast_ps_buf(tx);
- else
- return ieee80211_tx_h_multicast_ps_buf(tx);
-}
-
-
-static void inline
-__ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
- struct sk_buff *skb,
- struct net_device *dev,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- int hdrlen;
-
- memset(tx, 0, sizeof(*tx));
- tx->skb = skb;
- tx->dev = dev; /* use original interface */
- tx->local = local;
- tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- tx->sta = sta_info_get(local, hdr->addr1);
- tx->fc = le16_to_cpu(hdr->frame_control);
- control->power_level = local->hw.conf.power_level;
- tx->u.tx.control = control;
- tx->u.tx.unicast = !is_multicast_ether_addr(hdr->addr1);
- if (is_multicast_ether_addr(hdr->addr1))
- control->flags |= IEEE80211_TXCTL_NO_ACK;
- else
- control->flags &= ~IEEE80211_TXCTL_NO_ACK;
- tx->fragmented = local->fragmentation_threshold <
- IEEE80211_MAX_FRAG_THRESHOLD && tx->u.tx.unicast &&
- skb->len + FCS_LEN > local->fragmentation_threshold &&
- (!local->ops->set_frag_threshold);
- if (!tx->sta)
- control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
- else if (tx->sta->clear_dst_mask) {
- control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
- tx->sta->clear_dst_mask = 0;
- }
- control->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
- if (local->sta_antenna_sel != STA_ANTENNA_SEL_AUTO && tx->sta)
- control->antenna_sel_tx = tx->sta->antenna_sel_tx;
- hdrlen = ieee80211_get_hdrlen(tx->fc);
- if (skb->len > hdrlen + sizeof(rfc1042_header) + 2) {
- u8 *pos = &skb->data[hdrlen + sizeof(rfc1042_header)];
- tx->ethertype = (pos[0] << 8) | pos[1];
- }
- control->flags |= IEEE80211_TXCTL_FIRST_FRAGMENT;
-
-}
-
-static int inline is_ieee80211_device(struct net_device *dev,
- struct net_device *master)
-{
- return (wdev_priv(dev->ieee80211_ptr) ==
- wdev_priv(master->ieee80211_ptr));
-}
-
-/* Device in tx->dev has a reference added; use dev_put(tx->dev) when
- * finished with it. */
-static int inline ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
- struct sk_buff *skb,
- struct net_device *mdev,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_tx_packet_data *pkt_data;
- struct net_device *dev;
-
- pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
- dev = dev_get_by_index(pkt_data->ifindex);
- if (unlikely(dev && !is_ieee80211_device(dev, mdev))) {
- dev_put(dev);
- dev = NULL;
- }
- if (unlikely(!dev))
- return -ENODEV;
- __ieee80211_tx_prepare(tx, skb, dev, control);
- return 0;
-}
-
-static inline int __ieee80211_queue_stopped(const struct ieee80211_local *local,
- int queue)
-{
- return test_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]);
-}
-
-static inline int __ieee80211_queue_pending(const struct ieee80211_local *local,
- int queue)
-{
- return test_bit(IEEE80211_LINK_STATE_PENDING, &local->state[queue]);
-}
-
-#define IEEE80211_TX_OK 0
-#define IEEE80211_TX_AGAIN 1
-#define IEEE80211_TX_FRAG_AGAIN 2
-
-static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_tx_control *control = tx->u.tx.control;
- int ret, i;
-
- if (!ieee80211_qdisc_installed(local->mdev) &&
- __ieee80211_queue_stopped(local, 0)) {
- netif_stop_queue(local->mdev);
- return IEEE80211_TX_AGAIN;
- }
- if (skb) {
- ieee80211_dump_frame(local->mdev->name, "TX to low-level driver", skb);
- ret = local->ops->tx(local_to_hw(local), skb, control);
- if (ret)
- return IEEE80211_TX_AGAIN;
- local->mdev->trans_start = jiffies;
- ieee80211_led_tx(local, 1);
- }
- if (tx->u.tx.extra_frag) {
- control->flags &= ~(IEEE80211_TXCTL_USE_RTS_CTS |
- IEEE80211_TXCTL_USE_CTS_PROTECT |
- IEEE80211_TXCTL_CLEAR_DST_MASK |
- IEEE80211_TXCTL_FIRST_FRAGMENT);
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- if (!tx->u.tx.extra_frag[i])
- continue;
- if (__ieee80211_queue_stopped(local, control->queue))
- return IEEE80211_TX_FRAG_AGAIN;
- if (i == tx->u.tx.num_extra_frag) {
- control->tx_rate = tx->u.tx.last_frag_hwrate;
- control->rate = tx->u.tx.last_frag_rate;
- if (tx->u.tx.probe_last_frag)
- control->flags |=
- IEEE80211_TXCTL_RATE_CTRL_PROBE;
- else
- control->flags &=
- ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
- }
-
- ieee80211_dump_frame(local->mdev->name,
- "TX to low-level driver",
- tx->u.tx.extra_frag[i]);
- ret = local->ops->tx(local_to_hw(local),
- tx->u.tx.extra_frag[i],
- control);
- if (ret)
- return IEEE80211_TX_FRAG_AGAIN;
- local->mdev->trans_start = jiffies;
- ieee80211_led_tx(local, 1);
- tx->u.tx.extra_frag[i] = NULL;
- }
- kfree(tx->u.tx.extra_frag);
- tx->u.tx.extra_frag = NULL;
- }
- return IEEE80211_TX_OK;
-}
-
-static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_tx_control *control, int mgmt)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- ieee80211_tx_handler *handler;
- struct ieee80211_txrx_data tx;
- ieee80211_txrx_result res = TXRX_DROP;
- int ret, i;
-
- WARN_ON(__ieee80211_queue_pending(local, control->queue));
-
- if (unlikely(skb->len < 10)) {
- dev_kfree_skb(skb);
- return 0;
- }
-
- __ieee80211_tx_prepare(&tx, skb, dev, control);
- sta = tx.sta;
- tx.u.tx.mgmt_interface = mgmt;
- tx.u.tx.mode = local->hw.conf.mode;
-
- for (handler = local->tx_handlers; *handler != NULL; handler++) {
- res = (*handler)(&tx);
- if (res != TXRX_CONTINUE)
- break;
- }
-
- skb = tx.skb; /* handlers are allowed to change skb */
-
- if (sta)
- sta_info_put(sta);
-
- if (unlikely(res == TXRX_DROP)) {
- I802_DEBUG_INC(local->tx_handlers_drop);
- goto drop;
- }
-
- if (unlikely(res == TXRX_QUEUED)) {
- I802_DEBUG_INC(local->tx_handlers_queued);
- return 0;
- }
-
- if (tx.u.tx.extra_frag) {
- for (i = 0; i < tx.u.tx.num_extra_frag; i++) {
- int next_len, dur;
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *)
- tx.u.tx.extra_frag[i]->data;
-
- if (i + 1 < tx.u.tx.num_extra_frag) {
- next_len = tx.u.tx.extra_frag[i + 1]->len;
- } else {
- next_len = 0;
- tx.u.tx.rate = tx.u.tx.last_frag_rate;
- tx.u.tx.last_frag_hwrate = tx.u.tx.rate->val;
- }
- dur = ieee80211_duration(&tx, 0, next_len);
- hdr->duration_id = cpu_to_le16(dur);
- }
- }
-
-retry:
- ret = __ieee80211_tx(local, skb, &tx);
- if (ret) {
- struct ieee80211_tx_stored_packet *store =
- &local->pending_packet[control->queue];
-
- if (ret == IEEE80211_TX_FRAG_AGAIN)
- skb = NULL;
- set_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[control->queue]);
- smp_mb();
- /* When the driver gets out of buffers during sending of
- * fragments and calls ieee80211_stop_queue, there is
- * a small window between IEEE80211_LINK_STATE_XOFF and
- * IEEE80211_LINK_STATE_PENDING flags are set. If a buffer
- * gets available in that window (i.e. driver calls
- * ieee80211_wake_queue), we would end up with ieee80211_tx
- * called with IEEE80211_LINK_STATE_PENDING. Prevent this by
- * continuing transmitting here when that situation is
- * possible to have happened. */
- if (!__ieee80211_queue_stopped(local, control->queue)) {
- clear_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[control->queue]);
- goto retry;
- }
- memcpy(&store->control, control,
- sizeof(struct ieee80211_tx_control));
- store->skb = skb;
- store->extra_frag = tx.u.tx.extra_frag;
- store->num_extra_frag = tx.u.tx.num_extra_frag;
- store->last_frag_hwrate = tx.u.tx.last_frag_hwrate;
- store->last_frag_rate = tx.u.tx.last_frag_rate;
- store->last_frag_rate_ctrl_probe = tx.u.tx.probe_last_frag;
- }
- return 0;
-
- drop:
- if (skb)
- dev_kfree_skb(skb);
- for (i = 0; i < tx.u.tx.num_extra_frag; i++)
- if (tx.u.tx.extra_frag[i])
- dev_kfree_skb(tx.u.tx.extra_frag[i]);
- kfree(tx.u.tx.extra_frag);
- return 0;
-}
-
-static void ieee80211_tx_pending(unsigned long data)
-{
- struct ieee80211_local *local = (struct ieee80211_local *)data;
- struct net_device *dev = local->mdev;
- struct ieee80211_tx_stored_packet *store;
- struct ieee80211_txrx_data tx;
- int i, ret, reschedule = 0;
-
- netif_tx_lock_bh(dev);
- for (i = 0; i < local->hw.queues; i++) {
- if (__ieee80211_queue_stopped(local, i))
- continue;
- if (!__ieee80211_queue_pending(local, i)) {
- reschedule = 1;
- continue;
- }
- store = &local->pending_packet[i];
- tx.u.tx.control = &store->control;
- tx.u.tx.extra_frag = store->extra_frag;
- tx.u.tx.num_extra_frag = store->num_extra_frag;
- tx.u.tx.last_frag_hwrate = store->last_frag_hwrate;
- tx.u.tx.last_frag_rate = store->last_frag_rate;
- tx.u.tx.probe_last_frag = store->last_frag_rate_ctrl_probe;
- ret = __ieee80211_tx(local, store->skb, &tx);
- if (ret) {
- if (ret == IEEE80211_TX_FRAG_AGAIN)
- store->skb = NULL;
- } else {
- clear_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[i]);
- reschedule = 1;
- }
- }
- netif_tx_unlock_bh(dev);
- if (reschedule) {
- if (!ieee80211_qdisc_installed(dev)) {
- if (!__ieee80211_queue_stopped(local, 0))
- netif_wake_queue(dev);
- } else
- netif_schedule(dev);
- }
-}
-
-static void ieee80211_clear_tx_pending(struct ieee80211_local *local)
-{
- int i, j;
- struct ieee80211_tx_stored_packet *store;
-
- for (i = 0; i < local->hw.queues; i++) {
- if (!__ieee80211_queue_pending(local, i))
- continue;
- store = &local->pending_packet[i];
- kfree_skb(store->skb);
- for (j = 0; j < store->num_extra_frag; j++)
- kfree_skb(store->extra_frag[j]);
- kfree(store->extra_frag);
- clear_bit(IEEE80211_LINK_STATE_PENDING, &local->state[i]);
- }
-}
-
-static int ieee80211_master_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct ieee80211_tx_control control;
- struct ieee80211_tx_packet_data *pkt_data;
- struct net_device *odev = NULL;
- struct ieee80211_sub_if_data *osdata;
- int headroom;
- int ret;
-
- /*
- * copy control out of the skb so other people can use skb->cb
- */
- pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
- memset(&control, 0, sizeof(struct ieee80211_tx_control));
-
- if (pkt_data->ifindex)
- odev = dev_get_by_index(pkt_data->ifindex);
- if (unlikely(odev && !is_ieee80211_device(odev, dev))) {
- dev_put(odev);
- odev = NULL;
- }
- if (unlikely(!odev)) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Discarded packet with nonexistent "
- "originating device\n", dev->name);
-#endif
- dev_kfree_skb(skb);
- return 0;
- }
- osdata = IEEE80211_DEV_TO_SUB_IF(odev);
-
- headroom = osdata->local->hw.extra_tx_headroom +
- IEEE80211_ENCRYPT_HEADROOM;
- if (skb_headroom(skb) < headroom) {
- if (pskb_expand_head(skb, headroom, 0, GFP_ATOMIC)) {
- dev_kfree_skb(skb);
- return 0;
- }
- }
-
- control.ifindex = odev->ifindex;
- control.type = osdata->type;
- if (pkt_data->req_tx_status)
- control.flags |= IEEE80211_TXCTL_REQ_TX_STATUS;
- if (pkt_data->do_not_encrypt)
- control.flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
- if (pkt_data->requeue)
- control.flags |= IEEE80211_TXCTL_REQUEUE;
- control.queue = pkt_data->queue;
-
- ret = ieee80211_tx(odev, skb, &control,
- control.type == IEEE80211_IF_TYPE_MGMT);
- dev_put(odev);
-
- return ret;
-}
-
-
-/**
- * ieee80211_subif_start_xmit - netif start_xmit function for Ethernet-type
- * subinterfaces (wlan#, WDS, and VLAN interfaces)
- * @skb: packet to be sent
- * @dev: incoming interface
- *
- * Returns: 0 on success (and frees skb in this case) or 1 on failure (skb will
- * not be freed, and caller is responsible for either retrying later or freeing
- * skb).
- *
- * This function takes in an Ethernet header and encapsulates it with suitable
- * IEEE 802.11 header based on which interface the packet is coming in. The
- * encapsulated packet will then be passed to master interface, wlan#.11, for
- * transmission (through low-level driver).
- */
-static int ieee80211_subif_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_tx_packet_data *pkt_data;
- struct ieee80211_sub_if_data *sdata;
- int ret = 1, head_need;
- u16 ethertype, hdrlen, fc;
- struct ieee80211_hdr hdr;
- const u8 *encaps_data;
- int encaps_len, skip_header_bytes;
- int nh_pos, h_pos, no_encrypt = 0;
- struct sta_info *sta;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (unlikely(skb->len < ETH_HLEN)) {
- printk(KERN_DEBUG "%s: short skb (len=%d)\n",
- dev->name, skb->len);
- ret = 0;
- goto fail;
- }
-
- nh_pos = skb_network_header(skb) - skb->data;
- h_pos = skb_transport_header(skb) - skb->data;
-
- /* convert Ethernet header to proper 802.11 header (based on
- * operation mode) */
- ethertype = (skb->data[12] << 8) | skb->data[13];
- /* TODO: handling for 802.1x authorized/unauthorized port */
- fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA;
-
- if (likely(sdata->type == IEEE80211_IF_TYPE_AP ||
- sdata->type == IEEE80211_IF_TYPE_VLAN)) {
- fc |= IEEE80211_FCTL_FROMDS;
- /* DA BSSID SA */
- memcpy(hdr.addr1, skb->data, ETH_ALEN);
- memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
- memcpy(hdr.addr3, skb->data + ETH_ALEN, ETH_ALEN);
- hdrlen = 24;
- } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
- fc |= IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS;
- /* RA TA DA SA */
- memcpy(hdr.addr1, sdata->u.wds.remote_addr, ETH_ALEN);
- memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
- memcpy(hdr.addr3, skb->data, ETH_ALEN);
- memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
- hdrlen = 30;
- } else if (sdata->type == IEEE80211_IF_TYPE_STA) {
- if (dls_link_status(local, skb->data) == DLS_STATUS_OK) {
- /* DA SA BSSID */
- memcpy(hdr.addr1, skb->data, ETH_ALEN);
- memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
- memcpy(hdr.addr3, sdata->u.sta.bssid, ETH_ALEN);
- } else {
- fc |= IEEE80211_FCTL_TODS;
- /* BSSID SA DA */
- memcpy(hdr.addr1, sdata->u.sta.bssid, ETH_ALEN);
- memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
- memcpy(hdr.addr3, skb->data, ETH_ALEN);
- }
- hdrlen = 24;
- } else if (sdata->type == IEEE80211_IF_TYPE_IBSS) {
- /* DA SA BSSID */
- memcpy(hdr.addr1, skb->data, ETH_ALEN);
- memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
- memcpy(hdr.addr3, sdata->u.sta.bssid, ETH_ALEN);
- hdrlen = 24;
- } else {
- ret = 0;
- goto fail;
- }
-
- /* receiver is QoS enabled, use a QoS type frame */
- sta = sta_info_get(local, hdr.addr1);
- if (sta) {
- if (sta->flags & WLAN_STA_WME) {
- fc |= IEEE80211_STYPE_QOS_DATA;
- hdrlen += 2;
- }
- sta_info_put(sta);
- }
-
- hdr.frame_control = cpu_to_le16(fc);
- hdr.duration_id = 0;
- hdr.seq_ctrl = 0;
-
- skip_header_bytes = ETH_HLEN;
- if (ethertype == ETH_P_AARP || ethertype == ETH_P_IPX) {
- encaps_data = bridge_tunnel_header;
- encaps_len = sizeof(bridge_tunnel_header);
- skip_header_bytes -= 2;
- } else if (ethertype >= 0x600) {
- encaps_data = rfc1042_header;
- encaps_len = sizeof(rfc1042_header);
- skip_header_bytes -= 2;
- } else {
- encaps_data = NULL;
- encaps_len = 0;
- }
-
- skb_pull(skb, skip_header_bytes);
- nh_pos -= skip_header_bytes;
- h_pos -= skip_header_bytes;
-
- /* TODO: implement support for fragments so that there is no need to
- * reallocate and copy payload; it might be enough to support one
- * extra fragment that would be copied in the beginning of the frame
- * data.. anyway, it would be nice to include this into skb structure
- * somehow
- *
- * There are few options for this:
- * use skb->cb as an extra space for 802.11 header
- * allocate new buffer if not enough headroom
- * make sure that there is enough headroom in every skb by increasing
- * build in headroom in __dev_alloc_skb() (linux/skbuff.h) and
- * alloc_skb() (net/core/skbuff.c)
- */
- head_need = hdrlen + encaps_len + local->hw.extra_tx_headroom;
- head_need -= skb_headroom(skb);
-
- /* We are going to modify skb data, so make a copy of it if happens to
- * be cloned. This could happen, e.g., with Linux bridge code passing
- * us broadcast frames. */
-
- if (head_need > 0 || skb_cloned(skb)) {
-#if 0
- printk(KERN_DEBUG "%s: need to reallocate buffer for %d bytes "
- "of headroom\n", dev->name, head_need);
-#endif
-
- if (skb_cloned(skb))
- I802_DEBUG_INC(local->tx_expand_skb_head_cloned);
- else
- I802_DEBUG_INC(local->tx_expand_skb_head);
- /* Since we have to reallocate the buffer, make sure that there
- * is enough room for possible WEP IV/ICV and TKIP (8 bytes
- * before payload and 12 after). */
- if (pskb_expand_head(skb, (head_need > 0 ? head_need + 8 : 8),
- 12, GFP_ATOMIC)) {
- printk(KERN_DEBUG "%s: failed to reallocate TX buffer"
- "\n", dev->name);
- goto fail;
- }
- }
-
- if (encaps_data) {
- memcpy(skb_push(skb, encaps_len), encaps_data, encaps_len);
- nh_pos += encaps_len;
- h_pos += encaps_len;
- }
- memcpy(skb_push(skb, hdrlen), &hdr, hdrlen);
- nh_pos += hdrlen;
- h_pos += hdrlen;
-
- pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
- memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
- pkt_data->ifindex = sdata->dev->ifindex;
- pkt_data->mgmt_iface = (sdata->type == IEEE80211_IF_TYPE_MGMT);
- pkt_data->do_not_encrypt = no_encrypt;
-
- skb->dev = local->mdev;
- sdata->stats.tx_packets++;
- sdata->stats.tx_bytes += skb->len;
-
- /* Update skb pointers to various headers since this modified frame
- * is going to go through Linux networking code that may potentially
- * need things like pointer to IP header. */
- skb_set_mac_header(skb, 0);
- skb_set_network_header(skb, nh_pos);
- skb_set_transport_header(skb, h_pos);
-
- dev->trans_start = jiffies;
- dev_queue_xmit(skb);
-
- return 0;
-
- fail:
- if (!ret)
- dev_kfree_skb(skb);
-
- return ret;
-}
-
-
-/*
- * This is the transmit routine for the 802.11 type interfaces
- * called by upper layers of the linux networking
- * stack when it has a frame to transmit
- */
-static int
-ieee80211_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_tx_packet_data *pkt_data;
- struct ieee80211_hdr *hdr;
- u16 fc;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (skb->len < 10) {
- dev_kfree_skb(skb);
- return 0;
- }
-
- if (skb_headroom(skb) < sdata->local->hw.extra_tx_headroom) {
- if (pskb_expand_head(skb,
- sdata->local->hw.extra_tx_headroom, 0, GFP_ATOMIC)) {
- dev_kfree_skb(skb);
- return 0;
- }
- }
-
- hdr = (struct ieee80211_hdr *) skb->data;
- fc = le16_to_cpu(hdr->frame_control);
-
- pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
- memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
- pkt_data->ifindex = sdata->dev->ifindex;
- pkt_data->mgmt_iface = (sdata->type == IEEE80211_IF_TYPE_MGMT);
-
- skb->priority = 20; /* use hardcoded priority for mgmt TX queue */
- skb->dev = sdata->local->mdev;
-
- /*
- * We're using the protocol field of the the frame control header
- * to request TX callback for hostapd. BIT(1) is checked.
- */
- if ((fc & BIT(1)) == BIT(1)) {
- pkt_data->req_tx_status = 1;
- fc &= ~BIT(1);
- hdr->frame_control = cpu_to_le16(fc);
- }
-
- pkt_data->do_not_encrypt = !(fc & IEEE80211_FCTL_PROTECTED);
-
- sdata->stats.tx_packets++;
- sdata->stats.tx_bytes += skb->len;
-
- dev_queue_xmit(skb);
-
- return 0;
-}
-
-
-static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
- struct ieee80211_if_ap *bss,
- struct sk_buff *skb)
-{
- u8 *pos, *tim;
- int aid0 = 0;
- int i, have_bits = 0, n1, n2;
-
- /* Generate bitmap for TIM only if there are any STAs in power save
- * mode. */
- spin_lock_bh(&local->sta_lock);
- if (atomic_read(&bss->num_sta_ps) > 0)
- /* in the hope that this is faster than
- * checking byte-for-byte */
- have_bits = !bitmap_empty((unsigned long*)bss->tim,
- IEEE80211_MAX_AID+1);
-
- if (bss->dtim_count == 0)
- bss->dtim_count = bss->dtim_period - 1;
- else
- bss->dtim_count--;
-
- tim = pos = (u8 *) skb_put(skb, 6);
- *pos++ = WLAN_EID_TIM;
- *pos++ = 4;
- *pos++ = bss->dtim_count;
- *pos++ = bss->dtim_period;
-
- if (bss->dtim_count == 0 && !skb_queue_empty(&bss->ps_bc_buf))
- aid0 = 1;
-
- if (have_bits) {
- /* Find largest even number N1 so that bits numbered 1 through
- * (N1 x 8) - 1 in the bitmap are 0 and number N2 so that bits
- * (N2 + 1) x 8 through 2007 are 0. */
- n1 = 0;
- for (i = 0; i < IEEE80211_MAX_TIM_LEN; i++) {
- if (bss->tim[i]) {
- n1 = i & 0xfe;
- break;
- }
- }
- n2 = n1;
- for (i = IEEE80211_MAX_TIM_LEN - 1; i >= n1; i--) {
- if (bss->tim[i]) {
- n2 = i;
- break;
- }
- }
-
- /* Bitmap control */
- *pos++ = n1 | aid0;
- /* Part Virt Bitmap */
- memcpy(pos, bss->tim + n1, n2 - n1 + 1);
-
- tim[1] = n2 - n1 + 4;
- skb_put(skb, n2 - n1);
- } else {
- *pos++ = aid0; /* Bitmap control */
- *pos++ = 0; /* Part Virt Bitmap */
- }
- spin_unlock_bh(&local->sta_lock);
-}
-
-
-struct sk_buff * ieee80211_beacon_get(struct ieee80211_hw *hw, int if_id,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct sk_buff *skb;
- struct net_device *bdev;
- struct ieee80211_sub_if_data *sdata = NULL;
- struct ieee80211_if_ap *ap = NULL;
- struct ieee80211_rate *rate;
- struct rate_control_extra extra;
- u8 *b_head, *b_tail;
- int bh_len, bt_len;
-
- bdev = dev_get_by_index(if_id);
- if (bdev) {
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
- ap = &sdata->u.ap;
- dev_put(bdev);
- }
-
- if (!ap || sdata->type != IEEE80211_IF_TYPE_AP ||
- !ap->beacon_head) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "no beacon data avail for idx=%d "
- "(%s)\n", if_id, bdev ? bdev->name : "N/A");
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- return NULL;
- }
-
- /* Assume we are generating the normal beacon locally */
- b_head = ap->beacon_head;
- b_tail = ap->beacon_tail;
- bh_len = ap->beacon_head_len;
- bt_len = ap->beacon_tail_len;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom +
- bh_len + bt_len + 256 /* maximum TIM len */);
- if (!skb)
- return NULL;
-
- skb_reserve(skb, local->hw.extra_tx_headroom);
- memcpy(skb_put(skb, bh_len), b_head, bh_len);
-
- ieee80211_include_sequence(sdata, (struct ieee80211_hdr *)skb->data);
-
- ieee80211_beacon_add_tim(local, ap, skb);
-
- if (b_tail) {
- memcpy(skb_put(skb, bt_len), b_tail, bt_len);
- }
-
- if (control) {
- memset(&extra, 0, sizeof(extra));
- extra.mode = local->oper_hw_mode;
-
- rate = rate_control_get_rate(local, local->mdev, skb, &extra);
- if (!rate) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: ieee80211_beacon_get: no rate "
- "found\n", local->mdev->name);
- }
- dev_kfree_skb(skb);
- return NULL;
- }
-
- control->tx_rate = (local->short_preamble &&
- (rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
- rate->val2 : rate->val;
- control->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
- control->power_level = local->hw.conf.power_level;
- control->flags |= IEEE80211_TXCTL_NO_ACK;
- control->retry_limit = 1;
- control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
- }
-
- ap->num_beacons++;
- return skb;
-}
-EXPORT_SYMBOL(ieee80211_beacon_get);
-
-__le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
- size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_rate *rate;
- int short_preamble = local->short_preamble;
- int erp;
- u16 dur;
-
- rate = frame_txctl->rts_rate;
- erp = !!(rate->flags & IEEE80211_RATE_ERP);
-
- /* CTS duration */
- dur = ieee80211_frame_duration(local, 10, rate->rate,
- erp, short_preamble);
- /* Data frame duration */
- dur += ieee80211_frame_duration(local, frame_len, rate->rate,
- erp, short_preamble);
- /* ACK duration */
- dur += ieee80211_frame_duration(local, 10, rate->rate,
- erp, short_preamble);
-
- return cpu_to_le16(dur);
-}
-EXPORT_SYMBOL(ieee80211_rts_duration);
-
-
-__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
- size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_rate *rate;
- int short_preamble = local->short_preamble;
- int erp;
- u16 dur;
-
- rate = frame_txctl->rts_rate;
- erp = !!(rate->flags & IEEE80211_RATE_ERP);
-
- /* Data frame duration */
- dur = ieee80211_frame_duration(local, frame_len, rate->rate,
- erp, short_preamble);
- if (!(frame_txctl->flags & IEEE80211_TXCTL_NO_ACK)) {
- /* ACK duration */
- dur += ieee80211_frame_duration(local, 10, rate->rate,
- erp, short_preamble);
- }
-
- return cpu_to_le16(dur);
-}
-EXPORT_SYMBOL(ieee80211_ctstoself_duration);
-
-void ieee80211_rts_get(struct ieee80211_hw *hw,
- const void *frame, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl,
- struct ieee80211_rts *rts)
-{
- const struct ieee80211_hdr *hdr = frame;
- u16 fctl;
-
- fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS;
- rts->frame_control = cpu_to_le16(fctl);
- rts->duration = ieee80211_rts_duration(hw, frame_len, frame_txctl);
- memcpy(rts->ra, hdr->addr1, sizeof(rts->ra));
- memcpy(rts->ta, hdr->addr2, sizeof(rts->ta));
-}
-EXPORT_SYMBOL(ieee80211_rts_get);
-
-void ieee80211_ctstoself_get(struct ieee80211_hw *hw,
- const void *frame, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl,
- struct ieee80211_cts *cts)
-{
- const struct ieee80211_hdr *hdr = frame;
- u16 fctl;
-
- fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS;
- cts->frame_control = cpu_to_le16(fctl);
- cts->duration = ieee80211_ctstoself_duration(hw, frame_len, frame_txctl);
- memcpy(cts->ra, hdr->addr1, sizeof(cts->ra));
-}
-EXPORT_SYMBOL(ieee80211_ctstoself_get);
-
-struct sk_buff *
-ieee80211_get_buffered_bc(struct ieee80211_hw *hw, int if_id,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct sk_buff *skb;
- struct sta_info *sta;
- ieee80211_tx_handler *handler;
- struct ieee80211_txrx_data tx;
- ieee80211_txrx_result res = TXRX_DROP;
- struct net_device *bdev;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_ap *bss = NULL;
-
- bdev = dev_get_by_index(if_id);
- if (bdev) {
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
- bss = &sdata->u.ap;
- dev_put(bdev);
- }
- if (!bss || sdata->type != IEEE80211_IF_TYPE_AP || !bss->beacon_head)
- return NULL;
-
- if (bss->dtim_count != 0)
- return NULL; /* send buffered bc/mc only after DTIM beacon */
- memset(control, 0, sizeof(*control));
- while (1) {
- skb = skb_dequeue(&bss->ps_bc_buf);
- if (!skb)
- return NULL;
- local->total_ps_buffered--;
-
- if (!skb_queue_empty(&bss->ps_bc_buf) && skb->len >= 2) {
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *) skb->data;
- /* more buffered multicast/broadcast frames ==> set
- * MoreData flag in IEEE 802.11 header to inform PS
- * STAs */
- hdr->frame_control |=
- cpu_to_le16(IEEE80211_FCTL_MOREDATA);
- }
-
- if (ieee80211_tx_prepare(&tx, skb, local->mdev, control) == 0)
- break;
- dev_kfree_skb_any(skb);
- }
- sta = tx.sta;
- tx.u.tx.ps_buffered = 1;
-
- for (handler = local->tx_handlers; *handler != NULL; handler++) {
- res = (*handler)(&tx);
- if (res == TXRX_DROP || res == TXRX_QUEUED)
- break;
- }
- dev_put(tx.dev);
- skb = tx.skb; /* handlers are allowed to change skb */
-
- if (res == TXRX_DROP) {
- I802_DEBUG_INC(local->tx_handlers_drop);
- dev_kfree_skb(skb);
- skb = NULL;
- } else if (res == TXRX_QUEUED) {
- I802_DEBUG_INC(local->tx_handlers_queued);
- skb = NULL;
- }
-
- if (sta)
- sta_info_put(sta);
-
- return skb;
-}
-EXPORT_SYMBOL(ieee80211_get_buffered_bc);
-
-static int __ieee80211_if_config(struct net_device *dev,
- struct sk_buff *beacon,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_if_conf conf;
- static u8 scan_bssid[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
-
- if (!local->ops->config_interface || !netif_running(dev))
- return 0;
-
- memset(&conf, 0, sizeof(conf));
- conf.type = sdata->type;
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- if (local->sta_scanning &&
- local->scan_dev == dev)
- conf.bssid = scan_bssid;
- else
- conf.bssid = sdata->u.sta.bssid;
- conf.ssid = sdata->u.sta.ssid;
- conf.ssid_len = sdata->u.sta.ssid_len;
- conf.generic_elem = sdata->u.sta.extra_ie;
- conf.generic_elem_len = sdata->u.sta.extra_ie_len;
- } else if (sdata->type == IEEE80211_IF_TYPE_AP) {
- conf.ssid = sdata->u.ap.ssid;
- conf.ssid_len = sdata->u.ap.ssid_len;
- conf.generic_elem = sdata->u.ap.generic_elem;
- conf.generic_elem_len = sdata->u.ap.generic_elem_len;
- conf.beacon = beacon;
- conf.beacon_control = control;
- }
- return local->ops->config_interface(local_to_hw(local),
- dev->ifindex, &conf);
-}
-
-int ieee80211_if_config(struct net_device *dev)
-{
- return __ieee80211_if_config(dev, NULL, NULL);
-}
-
-int ieee80211_if_config_beacon(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_tx_control control;
- struct sk_buff *skb;
-
- if (!(local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE))
- return 0;
- skb = ieee80211_beacon_get(local_to_hw(local), dev->ifindex, &control);
- if (!skb)
- return -ENOMEM;
- return __ieee80211_if_config(dev, skb, &control);
-}
-
-int ieee80211_hw_config(struct ieee80211_local *local)
-{
- struct ieee80211_hw_mode *mode;
- struct ieee80211_channel *chan;
- int ret = 0;
-
- if (local->sta_scanning) {
- chan = local->scan_channel;
- mode = local->scan_hw_mode;
- } else {
- chan = local->oper_channel;
- mode = local->oper_hw_mode;
- }
-
- local->hw.conf.channel = chan->chan;
- local->hw.conf.channel_val = chan->val;
- local->hw.conf.power_level = chan->power_level;
- local->hw.conf.freq = chan->freq;
- local->hw.conf.phymode = mode->mode;
- local->hw.conf.antenna_max = chan->antenna_max;
- local->hw.conf.chan = chan;
- local->hw.conf.mode = mode;
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "HW CONFIG: channel=%d freq=%d "
- "phymode=%d\n", local->hw.conf.channel, local->hw.conf.freq,
- local->hw.conf.phymode);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
-
- if (local->ops->config)
- ret = local->ops->config(local_to_hw(local), &local->hw.conf);
-
- return ret;
-}
-
-
-static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
-{
- /* FIX: what would be proper limits for MTU?
- * This interface uses 802.3 frames. */
- if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6) {
- printk(KERN_WARNING "%s: invalid MTU %d\n",
- dev->name, new_mtu);
- return -EINVAL;
- }
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- dev->mtu = new_mtu;
- return 0;
-}
-
-
-static int ieee80211_change_mtu_apdev(struct net_device *dev, int new_mtu)
-{
- /* FIX: what would be proper limits for MTU?
- * This interface uses 802.11 frames. */
- if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN) {
- printk(KERN_WARNING "%s: invalid MTU %d\n",
- dev->name, new_mtu);
- return -EINVAL;
- }
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- dev->mtu = new_mtu;
- return 0;
-}
-
-enum netif_tx_lock_class {
- TX_LOCK_NORMAL,
- TX_LOCK_MASTER,
-};
-
-static inline void netif_tx_lock_nested(struct net_device *dev, int subclass)
-{
- spin_lock_nested(&dev->_xmit_lock, subclass);
- dev->xmit_lock_owner = smp_processor_id();
-}
-
-static void ieee80211_set_multicast_list(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- unsigned short flags;
-
- netif_tx_lock_nested(local->mdev, TX_LOCK_MASTER);
- if (((dev->flags & IFF_ALLMULTI) != 0) ^ (sdata->allmulti != 0)) {
- if (sdata->allmulti) {
- sdata->allmulti = 0;
- local->iff_allmultis--;
- } else {
- sdata->allmulti = 1;
- local->iff_allmultis++;
- }
- }
- if (((dev->flags & IFF_PROMISC) != 0) ^ (sdata->promisc != 0)) {
- if (sdata->promisc) {
- sdata->promisc = 0;
- local->iff_promiscs--;
- } else {
- sdata->promisc = 1;
- local->iff_promiscs++;
- }
- }
- if (dev->mc_count != sdata->mc_count) {
- local->mc_count = local->mc_count - sdata->mc_count +
- dev->mc_count;
- sdata->mc_count = dev->mc_count;
- }
- if (local->ops->set_multicast_list) {
- flags = local->mdev->flags;
- if (local->iff_allmultis)
- flags |= IFF_ALLMULTI;
- if (local->iff_promiscs)
- flags |= IFF_PROMISC;
- read_lock(&local->sub_if_lock);
- local->ops->set_multicast_list(local_to_hw(local), flags,
- local->mc_count);
- read_unlock(&local->sub_if_lock);
- }
- netif_tx_unlock(local->mdev);
-}
-
-struct dev_mc_list *ieee80211_get_mc_list_item(struct ieee80211_hw *hw,
- struct dev_mc_list *prev,
- void **ptr)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_sub_if_data *sdata = *ptr;
- struct dev_mc_list *mc;
-
- if (!prev) {
- WARN_ON(sdata);
- sdata = NULL;
- }
- if (!prev || !prev->next) {
- if (sdata)
- sdata = list_entry(sdata->list.next,
- struct ieee80211_sub_if_data, list);
- else
- sdata = list_entry(local->sub_if_list.next,
- struct ieee80211_sub_if_data, list);
- if (&sdata->list != &local->sub_if_list)
- mc = sdata->dev->mc_list;
- else
- mc = NULL;
- } else
- mc = prev->next;
-
- *ptr = sdata;
- return mc;
-}
-EXPORT_SYMBOL(ieee80211_get_mc_list_item);
-
-static struct net_device_stats *ieee80211_get_stats(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- return &(sdata->stats);
-}
-
-static void ieee80211_if_shutdown(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- ASSERT_RTNL();
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- sdata->u.sta.state = IEEE80211_DISABLED;
- del_timer_sync(&sdata->u.sta.timer);
- del_timer_sync(&sdata->u.sta.admit_timer);
- skb_queue_purge(&sdata->u.sta.skb_queue);
- if (!local->ops->hw_scan &&
- local->scan_dev == sdata->dev) {
- local->sta_scanning = 0;
- cancel_delayed_work(&local->scan_work);
- }
- flush_workqueue(local->hw.workqueue);
- break;
- }
-}
-
-static inline int identical_mac_addr_allowed(int type1, int type2)
-{
- return (type1 == IEEE80211_IF_TYPE_MNTR ||
- type2 == IEEE80211_IF_TYPE_MNTR ||
- (type1 == IEEE80211_IF_TYPE_AP &&
- type2 == IEEE80211_IF_TYPE_WDS) ||
- (type1 == IEEE80211_IF_TYPE_WDS &&
- (type2 == IEEE80211_IF_TYPE_WDS ||
- type2 == IEEE80211_IF_TYPE_AP)) ||
- (type1 == IEEE80211_IF_TYPE_AP &&
- type2 == IEEE80211_IF_TYPE_VLAN) ||
- (type1 == IEEE80211_IF_TYPE_VLAN &&
- (type2 == IEEE80211_IF_TYPE_AP ||
- type2 == IEEE80211_IF_TYPE_VLAN)));
-}
-
-static int ieee80211_master_open(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
- int res = -EOPNOTSUPP;
-
- read_lock(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list) {
- if (sdata->dev != dev && netif_running(sdata->dev)) {
- res = 0;
- break;
- }
- }
- read_unlock(&local->sub_if_lock);
- return res;
-}
-
-static int ieee80211_master_stop(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
-
- read_lock(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list)
- if (sdata->dev != dev && netif_running(sdata->dev))
- dev_close(sdata->dev);
- read_unlock(&local->sub_if_lock);
-
- return 0;
-}
-
-static int ieee80211_mgmt_open(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (!netif_running(local->mdev))
- return -EOPNOTSUPP;
- return 0;
-}
-
-static int ieee80211_mgmt_stop(struct net_device *dev)
-{
- return 0;
-}
-
-/* Check if running monitor interfaces should go to a "soft monitor" mode
- * and switch them if necessary. */
-static inline void ieee80211_start_soft_monitor(struct ieee80211_local *local)
-{
- struct ieee80211_if_init_conf conf;
-
- if (local->open_count && local->open_count == local->monitors &&
- !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) &&
- local->ops->remove_interface) {
- conf.if_id = -1;
- conf.type = IEEE80211_IF_TYPE_MNTR;
- conf.mac_addr = NULL;
- local->ops->remove_interface(local_to_hw(local), &conf);
- }
-}
-
-/* Check if running monitor interfaces should go to a "hard monitor" mode
- * and switch them if necessary. */
-static void ieee80211_start_hard_monitor(struct ieee80211_local *local)
-{
- struct ieee80211_if_init_conf conf;
-
- if (local->open_count && local->open_count == local->monitors &&
- !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) &&
- local->ops->add_interface) {
- conf.if_id = -1;
- conf.type = IEEE80211_IF_TYPE_MNTR;
- conf.mac_addr = NULL;
- local->ops->add_interface(local_to_hw(local), &conf);
- }
-}
-
-static int ieee80211_open(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata, *nsdata;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_if_init_conf conf;
- int res;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- read_lock(&local->sub_if_lock);
- list_for_each_entry(nsdata, &local->sub_if_list, list) {
- struct net_device *ndev = nsdata->dev;
-
- if (ndev != dev && ndev != local->mdev && netif_running(ndev) &&
- compare_ether_addr(dev->dev_addr, ndev->dev_addr) == 0 &&
- !identical_mac_addr_allowed(sdata->type, nsdata->type)) {
- read_unlock(&local->sub_if_lock);
- return -ENOTUNIQ;
- }
- }
- read_unlock(&local->sub_if_lock);
-
- if (sdata->type == IEEE80211_IF_TYPE_WDS &&
- is_zero_ether_addr(sdata->u.wds.remote_addr))
- return -ENOLINK;
-
- if (sdata->type == IEEE80211_IF_TYPE_MNTR && local->open_count &&
- !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER)) {
- /* run the interface in a "soft monitor" mode */
- local->monitors++;
- local->open_count++;
- local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
- return 0;
- }
- ieee80211_start_soft_monitor(local);
-
- if (local->ops->add_interface) {
- conf.if_id = dev->ifindex;
- conf.type = sdata->type;
- conf.mac_addr = dev->dev_addr;
- res = local->ops->add_interface(local_to_hw(local), &conf);
- if (res) {
- if (sdata->type == IEEE80211_IF_TYPE_MNTR)
- ieee80211_start_hard_monitor(local);
- return res;
- }
- } else {
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- return -EOPNOTSUPP;
- if (local->open_count > 0)
- return -ENOBUFS;
- }
-
- if (local->open_count == 0) {
- res = 0;
- tasklet_enable(&local->tx_pending_tasklet);
- tasklet_enable(&local->tasklet);
- if (local->ops->open)
- res = local->ops->open(local_to_hw(local));
- if (res == 0) {
- res = dev_open(local->mdev);
- if (res) {
- if (local->ops->stop)
- local->ops->stop(local_to_hw(local));
- } else {
- res = ieee80211_hw_config(local);
- if (res && local->ops->stop)
- local->ops->stop(local_to_hw(local));
- else if (!res && local->apdev)
- dev_open(local->apdev);
- }
- }
- if (res) {
- if (local->ops->remove_interface)
- local->ops->remove_interface(local_to_hw(local),
- &conf);
- return res;
- }
- }
- local->open_count++;
-
- if (sdata->type == IEEE80211_IF_TYPE_MNTR) {
- local->monitors++;
- local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
- } else
- ieee80211_if_config(dev);
-
- if (sdata->type == IEEE80211_IF_TYPE_STA &&
- !local->user_space_mlme)
- netif_carrier_off(dev);
- else
- netif_carrier_on(dev);
-
- netif_start_queue(dev);
- return 0;
-}
-
-
-static int ieee80211_stop(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sdata->type == IEEE80211_IF_TYPE_MNTR &&
- local->open_count > 1 &&
- !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER)) {
- /* remove "soft monitor" interface */
- local->open_count--;
- local->monitors--;
- if (!local->monitors)
- local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP;
- return 0;
- }
-
- netif_stop_queue(dev);
- ieee80211_if_shutdown(dev);
-
- if (sdata->type == IEEE80211_IF_TYPE_MNTR) {
- local->monitors--;
- if (!local->monitors)
- local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP;
- }
-
- local->open_count--;
- if (local->open_count == 0) {
- if (netif_running(local->mdev))
- dev_close(local->mdev);
- if (local->apdev)
- dev_close(local->apdev);
- if (local->ops->stop)
- local->ops->stop(local_to_hw(local));
- tasklet_disable(&local->tx_pending_tasklet);
- tasklet_disable(&local->tasklet);
- }
- if (local->ops->remove_interface) {
- struct ieee80211_if_init_conf conf;
-
- conf.if_id = dev->ifindex;
- conf.type = sdata->type;
- conf.mac_addr = dev->dev_addr;
- local->ops->remove_interface(local_to_hw(local), &conf);
- }
-
- ieee80211_start_hard_monitor(local);
-
- return 0;
-}
-
-
-static int header_parse_80211(struct sk_buff *skb, unsigned char *haddr)
-{
- memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
- return ETH_ALEN;
-}
-
-static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
-{
- return compare_ether_addr(raddr, addr) == 0 ||
- is_broadcast_ether_addr(raddr);
-}
-
-
-inline static unsigned int calc_pad_len(unsigned int len)
-{
- return ((4 - len) & 0x3);
-}
-
-static ieee80211_txrx_result
-ieee80211_rx_h_data_agg(struct ieee80211_txrx_data *rx)
-{
- struct net_device *dev = rx->dev;
- struct ieee80211_local *local = rx->local;
- u16 fc, hdrlen, ethertype;
- u8 *payload;
- struct sk_buff *skb = rx->skb, *skb2, *frame;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- const struct ethhdr* eth;
- int remaining;
-
- fc = rx->fc;
- if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
- return TXRX_CONTINUE;
-
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
- return TXRX_DROP;
-
- if (!rx->u.rx.is_agg_frame)
- return TXRX_CONTINUE;
-
- hdrlen = ieee80211_get_hdrlen(fc);
-
- payload = skb->data + hdrlen;
-
- if (unlikely((skb->len - hdrlen) < 8)) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: RX too short data frame "
- "payload\n", dev->name);
- return TXRX_DROP;
- }
-
- ethertype = (payload[6] << 8) | payload[7];
-
- if (likely((compare_ether_addr(payload, rfc1042_header) == 0 &&
- ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
- compare_ether_addr(payload, bridge_tunnel_header) == 0)) {
- /* remove RFC1042 or Bridge-Tunnel encapsulation and
- * replace EtherType */
- eth = (struct ethhdr*) (skb->data + hdrlen + 6);
- remaining = skb->len - (hdrlen + 6);
- } else {
- eth = (struct ethhdr*) (skb->data + hdrlen);
- remaining = skb->len - hdrlen;
- }
-
- while ((u8*)eth < skb->data + skb->len) {
- u8 padding;
- unsigned int subframe_len = sizeof(struct ethhdr) +
- ntohs(eth->h_proto);
-
- padding = calc_pad_len(subframe_len);
- /* the last MSDU has no padding */
- if (subframe_len > remaining)
- return TXRX_DROP;
-
- frame = dev_alloc_skb(local->hw.extra_tx_headroom +
- subframe_len);
-
- if (frame == NULL)
- return TXRX_DROP;
-
- memcpy(skb_put(frame, subframe_len), (u8*)eth, subframe_len);
- skb_set_mac_header(frame, 0);
- skb2 = NULL;
-
- sdata->stats.rx_packets++;
- sdata->stats.rx_bytes += frame->len;
-
- if (local->bridge_packets &&
- (sdata->type == IEEE80211_IF_TYPE_AP ||
- sdata->type == IEEE80211_IF_TYPE_VLAN) &&
- rx->u.rx.ra_match) {
- if (is_multicast_ether_addr(frame->data)) {
- /* send multicast frames both to higher layers
- * in local net stack and back to the wireless
- * media */
- skb2 = skb_copy(frame, GFP_ATOMIC);
- if (!skb2)
- printk(KERN_DEBUG "%s: failed to clone"
- " multicast frame\n", dev->name);
- } else {
- struct sta_info *dsta;
-
- dsta = sta_info_get(local, frame->data);
- if (dsta && !dsta->dev)
- printk(KERN_DEBUG "Station with null "
- "dev structure!\n");
- else if (dsta && dsta->dev == dev) {
- /* Destination station is associated
- * to this AP, so send the frame
- * directly to it and do not pass
- * the frame to local net stack.
- */
- skb2 = frame;
- frame = NULL;
- }
- if (dsta)
- sta_info_put(dsta);
- }
- }
- if (frame) {
- /* deliver to local stack */
- frame->protocol = eth_type_trans(frame, dev);
- frame->priority = skb->priority;
- frame->dev = dev;
- netif_rx(frame);
- }
-
- if (skb2) {
- /* send to wireless media */
- skb2->protocol = __constant_htons(ETH_P_802_3);
- skb_set_network_header(skb2, 0);
- skb_set_mac_header(skb2, 0);
- skb2->priority = skb->priority;
- skb2->dev = dev;
- dev_queue_xmit(skb2);
- }
-
- eth = (struct ethhdr*)((u8*)eth + subframe_len + padding);
-
- remaining -= (subframe_len + padding);
- }
-
- dev_kfree_skb(skb);
- return TXRX_QUEUED;
-}
-
-static ieee80211_txrx_result
-ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
-{
- struct net_device *dev = rx->dev;
- struct ieee80211_local *local = rx->local;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
- u16 fc, hdrlen, ethertype;
- u8 *payload;
- u8 dst[ETH_ALEN];
- u8 src[ETH_ALEN];
- struct sk_buff *skb = rx->skb, *skb2;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- fc = rx->fc;
- if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
- return TXRX_CONTINUE;
-
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
- return TXRX_DROP;
-
- hdrlen = ieee80211_get_hdrlen(fc);
-
- /* convert IEEE 802.11 header + possible LLC headers into Ethernet
- * header
- * IEEE 802.11 address fields:
- * ToDS FromDS Addr1 Addr2 Addr3 Addr4
- * 0 0 DA SA BSSID n/a
- * 0 1 DA BSSID SA n/a
- * 1 0 BSSID SA DA n/a
- * 1 1 RA TA DA SA
- */
-
- switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
- case IEEE80211_FCTL_TODS:
- /* BSSID SA DA */
- memcpy(dst, hdr->addr3, ETH_ALEN);
- memcpy(src, hdr->addr2, ETH_ALEN);
-
- if (unlikely(sdata->type != IEEE80211_IF_TYPE_AP &&
- sdata->type != IEEE80211_IF_TYPE_VLAN)) {
- printk(KERN_DEBUG "%s: dropped ToDS frame (BSSID="
- MAC_FMT " SA=" MAC_FMT " DA=" MAC_FMT ")\n",
- dev->name, MAC_ARG(hdr->addr1),
- MAC_ARG(hdr->addr2), MAC_ARG(hdr->addr3));
- return TXRX_DROP;
- }
- break;
- case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
- /* RA TA DA SA */
- memcpy(dst, hdr->addr3, ETH_ALEN);
- memcpy(src, hdr->addr4, ETH_ALEN);
-
- if (unlikely(sdata->type != IEEE80211_IF_TYPE_WDS)) {
- printk(KERN_DEBUG "%s: dropped FromDS&ToDS frame (RA="
- MAC_FMT " TA=" MAC_FMT " DA=" MAC_FMT " SA="
- MAC_FMT ")\n",
- rx->dev->name, MAC_ARG(hdr->addr1),
- MAC_ARG(hdr->addr2), MAC_ARG(hdr->addr3),
- MAC_ARG(hdr->addr4));
- return TXRX_DROP;
- }
- break;
- case IEEE80211_FCTL_FROMDS:
- /* DA BSSID SA */
- memcpy(dst, hdr->addr1, ETH_ALEN);
- memcpy(src, hdr->addr3, ETH_ALEN);
-
- if (sdata->type != IEEE80211_IF_TYPE_STA) {
- return TXRX_DROP;
- }
- break;
- case 0:
- /* DA SA BSSID */
- memcpy(dst, hdr->addr1, ETH_ALEN);
- memcpy(src, hdr->addr2, ETH_ALEN);
-
- if (sdata->type != IEEE80211_IF_TYPE_IBSS) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: dropped IBSS frame (DA="
- MAC_FMT " SA=" MAC_FMT " BSSID=" MAC_FMT
- ")\n",
- dev->name, MAC_ARG(hdr->addr1),
- MAC_ARG(hdr->addr2),
- MAC_ARG(hdr->addr3));
- }
- return TXRX_DROP;
- }
- break;
- }
-
- payload = skb->data + hdrlen;
-
- if (unlikely(skb->len - hdrlen < 8)) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: RX too short data frame "
- "payload\n", dev->name);
- }
- return TXRX_DROP;
- }
-
- ethertype = (payload[6] << 8) | payload[7];
-
- if (likely((compare_ether_addr(payload, rfc1042_header) == 0 &&
- ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
- compare_ether_addr(payload, bridge_tunnel_header) == 0)) {
- /* remove RFC1042 or Bridge-Tunnel encapsulation and
- * replace EtherType */
- skb_pull(skb, hdrlen + 6);
- memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN);
- memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN);
- } else {
- struct ethhdr *ehdr;
- __be16 len;
- skb_pull(skb, hdrlen);
- len = htons(skb->len);
- ehdr = (struct ethhdr *) skb_push(skb, sizeof(struct ethhdr));
- memcpy(ehdr->h_dest, dst, ETH_ALEN);
- memcpy(ehdr->h_source, src, ETH_ALEN);
- ehdr->h_proto = len;
- }
- skb->dev = dev;
-
- skb2 = NULL;
-
- sdata->stats.rx_packets++;
- sdata->stats.rx_bytes += skb->len;
-
- if (local->bridge_packets && (sdata->type == IEEE80211_IF_TYPE_AP
- || sdata->type == IEEE80211_IF_TYPE_VLAN) && rx->u.rx.ra_match) {
- if (is_multicast_ether_addr(skb->data)) {
- /* send multicast frames both to higher layers in
- * local net stack and back to the wireless media */
- skb2 = skb_copy(skb, GFP_ATOMIC);
- if (!skb2)
- printk(KERN_DEBUG "%s: failed to clone "
- "multicast frame\n", dev->name);
- } else {
- struct sta_info *dsta;
- dsta = sta_info_get(local, skb->data);
- if (dsta && !dsta->dev) {
- printk(KERN_DEBUG "Station with null dev "
- "structure!\n");
- } else if (dsta && dsta->dev == dev) {
- /* Destination station is associated to this
- * AP, so send the frame directly to it and
- * do not pass the frame to local net stack.
- */
- skb2 = skb;
- skb = NULL;
- }
- if (dsta)
- sta_info_put(dsta);
- }
- }
-
- if (skb) {
- /* deliver to local stack */
- skb->protocol = eth_type_trans(skb, dev);
- memset(skb->cb, 0, sizeof(skb->cb));
- netif_rx(skb);
- }
-
- if (skb2) {
- /* send to wireless media */
- skb2->protocol = __constant_htons(ETH_P_802_3);
- skb_set_network_header(skb2, 0);
- skb_set_mac_header(skb2, 0);
- dev_queue_xmit(skb2);
- }
-
- return TXRX_QUEUED;
-}
-
-
-static struct ieee80211_rate *
-ieee80211_get_rate(struct ieee80211_local *local, int phymode, int hw_rate)
-{
- struct ieee80211_hw_mode *mode;
- int r;
-
- list_for_each_entry(mode, &local->modes_list, list) {
- if (mode->mode != phymode)
- continue;
- for (r = 0; r < mode->num_rates; r++) {
- struct ieee80211_rate *rate = &mode->rates[r];
- if (rate->val == hw_rate ||
- (rate->flags & IEEE80211_RATE_PREAMBLE2 &&
- rate->val2 == hw_rate))
- return rate;
- }
- }
-
- return NULL;
-}
-
-static void
-ieee80211_fill_frame_info(struct ieee80211_local *local,
- struct ieee80211_frame_info *fi,
- struct ieee80211_rx_status *status)
-{
- if (status) {
- struct timespec ts;
- struct ieee80211_rate *rate;
-
- jiffies_to_timespec(jiffies, &ts);
- fi->hosttime = cpu_to_be64((u64) ts.tv_sec * 1000000 +
- ts.tv_nsec / 1000);
- fi->mactime = cpu_to_be64(status->mactime);
- switch (status->phymode) {
- case MODE_IEEE80211A:
- fi->phytype = htonl(ieee80211_phytype_ofdm_dot11_a);
- break;
- case MODE_IEEE80211B:
- fi->phytype = htonl(ieee80211_phytype_dsss_dot11_b);
- break;
- case MODE_IEEE80211G:
- fi->phytype = htonl(ieee80211_phytype_pbcc_dot11_g);
- break;
- case MODE_ATHEROS_TURBO:
- fi->phytype =
- htonl(ieee80211_phytype_dsss_dot11_turbo);
- break;
- default:
- fi->phytype = htonl(0xAAAAAAAA);
- break;
- }
- fi->channel = htonl(status->channel);
- rate = ieee80211_get_rate(local, status->phymode,
- status->rate);
- if (rate) {
- fi->datarate = htonl(rate->rate);
- if (rate->flags & IEEE80211_RATE_PREAMBLE2) {
- if (status->rate == rate->val)
- fi->preamble = htonl(2); /* long */
- else if (status->rate == rate->val2)
- fi->preamble = htonl(1); /* short */
- } else
- fi->preamble = htonl(0);
- } else {
- fi->datarate = htonl(0);
- fi->preamble = htonl(0);
- }
-
- fi->antenna = htonl(status->antenna);
- fi->priority = htonl(0xffffffff); /* no clue */
- fi->ssi_type = htonl(ieee80211_ssi_raw);
- fi->ssi_signal = htonl(status->ssi);
- fi->ssi_noise = 0x00000000;
- fi->encoding = 0;
- } else {
- /* clear everything because we really don't know.
- * the msg_type field isn't present on monitor frames
- * so we don't know whether it will be present or not,
- * but it's ok to not clear it since it'll be assigned
- * anyway */
- memset(fi, 0, sizeof(*fi) - sizeof(fi->msg_type));
-
- fi->ssi_type = htonl(ieee80211_ssi_none);
- }
- fi->version = htonl(IEEE80211_FI_VERSION);
- fi->length = cpu_to_be32(sizeof(*fi) - sizeof(fi->msg_type));
-}
-
-/* this routine is actually not just for this, but also
- * for pushing fake 'management' frames into userspace.
- * it shall be replaced by a netlink-based system. */
-void
-ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_rx_status *status, u32 msg_type)
-{
- struct ieee80211_frame_info *fi;
- const size_t hlen = sizeof(struct ieee80211_frame_info);
- struct ieee80211_sub_if_data *sdata;
-
- skb->dev = local->apdev;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(local->apdev);
-
- if (skb_headroom(skb) < hlen) {
- I802_DEBUG_INC(local->rx_expand_skb_head);
- if (pskb_expand_head(skb, hlen, 0, GFP_ATOMIC)) {
- dev_kfree_skb(skb);
- return;
- }
- }
-
- fi = (struct ieee80211_frame_info *) skb_push(skb, hlen);
-
- ieee80211_fill_frame_info(local, fi, status);
- fi->msg_type = htonl(msg_type);
-
- sdata->stats.rx_packets++;
- sdata->stats.rx_bytes += skb->len;
-
- skb_set_mac_header(skb, 0);
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- skb->pkt_type = PACKET_OTHERHOST;
- skb->protocol = htons(ETH_P_802_2);
- memset(skb->cb, 0, sizeof(skb->cb));
- netif_rx(skb);
-}
-
-static void
-ieee80211_rx_monitor(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_rx_status *status)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_rate *rate;
- struct ieee80211_rtap_hdr {
- struct ieee80211_radiotap_header hdr;
- u8 flags;
- u8 rate;
- __le16 chan_freq;
- __le16 chan_flags;
- u8 antsignal;
- } __attribute__ ((packed)) *rthdr;
-
- skb->dev = dev;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (status->flag & RX_FLAG_RADIOTAP)
- goto out;
-
- if (skb_headroom(skb) < sizeof(*rthdr)) {
- I802_DEBUG_INC(local->rx_expand_skb_head);
- if (pskb_expand_head(skb, sizeof(*rthdr), 0, GFP_ATOMIC)) {
- dev_kfree_skb(skb);
- return;
- }
- }
-
- rthdr = (struct ieee80211_rtap_hdr *) skb_push(skb, sizeof(*rthdr));
- memset(rthdr, 0, sizeof(*rthdr));
- rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr));
- rthdr->hdr.it_present =
- cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
- (1 << IEEE80211_RADIOTAP_RATE) |
- (1 << IEEE80211_RADIOTAP_CHANNEL) |
- (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL));
- rthdr->flags = local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS ?
- IEEE80211_RADIOTAP_F_FCS : 0;
- rate = ieee80211_get_rate(local, status->phymode, status->rate);
- if (rate)
- rthdr->rate = rate->rate / 5;
- rthdr->chan_freq = cpu_to_le16(status->freq);
- rthdr->chan_flags =
- status->phymode == MODE_IEEE80211A ?
- cpu_to_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ) :
- cpu_to_le16(IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ);
- rthdr->antsignal = status->ssi;
-
- out:
- sdata->stats.rx_packets++;
- sdata->stats.rx_bytes += skb->len;
-
- skb_set_mac_header(skb, 0);
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- skb->pkt_type = PACKET_OTHERHOST;
- skb->protocol = htons(ETH_P_802_2);
- memset(skb->cb, 0, sizeof(skb->cb));
- netif_rx(skb);
-}
-
-int ieee80211_radar_status(struct ieee80211_hw *hw, int channel,
- int radar, int radar_type)
-{
- struct sk_buff *skb;
- struct ieee80211_radar_info *msg;
- struct ieee80211_local *local = hw_to_local(hw);
-
- if (!local->apdev)
- return 0;
-
- skb = dev_alloc_skb(sizeof(struct ieee80211_frame_info) +
- sizeof(struct ieee80211_radar_info));
-
- if (!skb)
- return -ENOMEM;
- skb_reserve(skb, sizeof(struct ieee80211_frame_info));
-
- msg = (struct ieee80211_radar_info *)
- skb_put(skb, sizeof(struct ieee80211_radar_info));
- msg->channel = channel;
- msg->radar = radar;
- msg->radar_type = radar_type;
-
- ieee80211_rx_mgmt(local, skb, NULL, ieee80211_msg_radar);
- return 0;
-}
-EXPORT_SYMBOL(ieee80211_radar_status);
-
-int ieee80211_set_aid_for_sta(struct ieee80211_hw *hw, u8 *peer_address,
- u16 aid)
-{
- struct sk_buff *skb;
- struct ieee80211_msg_set_aid_for_sta *msg;
- struct ieee80211_local *local = hw_to_local(hw);
-
- /* unlikely because if this event only happens for APs,
- * which require an open ap device. */
- if (unlikely(!local->apdev))
- return 0;
-
- skb = dev_alloc_skb(sizeof(struct ieee80211_frame_info) +
- sizeof(struct ieee80211_msg_set_aid_for_sta));
-
- if (!skb)
- return -ENOMEM;
- skb_reserve(skb, sizeof(struct ieee80211_frame_info));
-
- msg = (struct ieee80211_msg_set_aid_for_sta *)
- skb_put(skb, sizeof(struct ieee80211_msg_set_aid_for_sta));
- memcpy(msg->sta_address, peer_address, ETH_ALEN);
- msg->aid = aid;
-
- ieee80211_rx_mgmt(local, skb, NULL, ieee80211_msg_set_aid_for_sta);
- return 0;
-}
-EXPORT_SYMBOL(ieee80211_set_aid_for_sta);
-
-static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta)
-{
- struct ieee80211_sub_if_data *sdata;
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
-
- if (sdata->bss)
- atomic_inc(&sdata->bss->num_sta_ps);
- sta->flags |= WLAN_STA_PS;
- sta->pspoll = 0;
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d enters power "
- "save mode\n", dev->name, MAC_ARG(sta->addr), sta->aid);
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-}
-
-
-static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- int sent = 0;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_tx_packet_data *pkt_data;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
- if (sdata->bss)
- atomic_dec(&sdata->bss->num_sta_ps);
- sta->flags &= ~(WLAN_STA_PS | WLAN_STA_TIM);
- sta->pspoll = 0;
- if (!skb_queue_empty(&sta->ps_tx_buf)) {
- if (local->ops->set_tim)
- local->ops->set_tim(local_to_hw(local), sta->aid, 0);
- if (sdata->bss)
- bss_tim_clear(local, sdata->bss, sta->aid);
- }
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d exits power "
- "save mode\n", dev->name, MAC_ARG(sta->addr), sta->aid);
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
- /* Send all buffered frames to the station */
- while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
- pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
- sent++;
- pkt_data->requeue = 1;
- dev_queue_xmit(skb);
- }
- while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
- pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
- local->total_ps_buffered--;
- sent++;
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d send PS frame "
- "since STA not sleeping anymore\n", dev->name,
- MAC_ARG(sta->addr), sta->aid);
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
- pkt_data->requeue = 1;
- dev_queue_xmit(skb);
- }
-
- return sent;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
-{
- struct sk_buff *skb;
- int no_pending_pkts;
-
- if (likely(!rx->sta ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL ||
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PSPOLL ||
- !rx->u.rx.ra_match))
- return TXRX_CONTINUE;
-
- skb = skb_dequeue(&rx->sta->tx_filtered);
- if (!skb) {
- skb = skb_dequeue(&rx->sta->ps_tx_buf);
- if (skb)
- rx->local->total_ps_buffered--;
- }
- no_pending_pkts = skb_queue_empty(&rx->sta->tx_filtered) &&
- skb_queue_empty(&rx->sta->ps_tx_buf);
-
- if (skb) {
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *) skb->data;
-
- /* tell TX path to send one frame even though the STA may
- * still remain is PS mode after this frame exchange */
- rx->sta->pspoll = 1;
-
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "STA " MAC_FMT " aid %d: PS Poll (entries "
- "after %d)\n",
- MAC_ARG(rx->sta->addr), rx->sta->aid,
- skb_queue_len(&rx->sta->ps_tx_buf));
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-
- /* Use MoreData flag to indicate whether there are more
- * buffered frames for this STA */
- if (no_pending_pkts) {
- hdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREDATA);
- rx->sta->flags &= ~WLAN_STA_TIM;
- } else
- hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA);
-
- dev_queue_xmit(skb);
-
- if (no_pending_pkts) {
- if (rx->local->ops->set_tim)
- rx->local->ops->set_tim(local_to_hw(rx->local),
- rx->sta->aid, 0);
- if (rx->sdata->bss)
- bss_tim_clear(rx->local, rx->sdata->bss, rx->sta->aid);
- }
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- } else if (!rx->u.rx.sent_ps_buffered) {
- printk(KERN_DEBUG "%s: STA " MAC_FMT " sent PS Poll even "
- "though there is no buffered frames for it\n",
- rx->dev->name, MAC_ARG(rx->sta->addr));
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-
- }
-
- /* Free PS Poll skb here instead of returning TXRX_DROP that would
- * count as an dropped frame. */
- dev_kfree_skb(rx->skb);
-
- return TXRX_QUEUED;
-}
-
-
-static inline struct ieee80211_fragment_entry *
-ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata,
- unsigned int frag, unsigned int seq, int rx_queue,
- struct sk_buff **skb)
-{
- struct ieee80211_fragment_entry *entry;
- int idx;
-
- idx = sdata->fragment_next;
- entry = &sdata->fragments[sdata->fragment_next++];
- if (sdata->fragment_next >= IEEE80211_FRAGMENT_MAX)
- sdata->fragment_next = 0;
-
- if (!skb_queue_empty(&entry->skb_list)) {
-#ifdef CONFIG_MAC80211_DEBUG
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *) entry->skb_list.next->data;
- printk(KERN_DEBUG "%s: RX reassembly removed oldest "
- "fragment entry (idx=%d age=%lu seq=%d last_frag=%d "
- "addr1=" MAC_FMT " addr2=" MAC_FMT "\n",
- sdata->dev->name, idx,
- jiffies - entry->first_frag_time, entry->seq,
- entry->last_frag, MAC_ARG(hdr->addr1),
- MAC_ARG(hdr->addr2));
-#endif /* CONFIG_MAC80211_DEBUG */
- __skb_queue_purge(&entry->skb_list);
- }
-
- __skb_queue_tail(&entry->skb_list, *skb); /* no need for locking */
- *skb = NULL;
- entry->first_frag_time = jiffies;
- entry->seq = seq;
- entry->rx_queue = rx_queue;
- entry->last_frag = frag;
- entry->ccmp = 0;
- entry->extra_len = 0;
-
- return entry;
-}
-
-
-static inline struct ieee80211_fragment_entry *
-ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata,
- u16 fc, unsigned int frag, unsigned int seq,
- int rx_queue, struct ieee80211_hdr *hdr)
-{
- struct ieee80211_fragment_entry *entry;
- int i, idx;
-
- idx = sdata->fragment_next;
- for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) {
- struct ieee80211_hdr *f_hdr;
- u16 f_fc;
-
- idx--;
- if (idx < 0)
- idx = IEEE80211_FRAGMENT_MAX - 1;
-
- entry = &sdata->fragments[idx];
- if (skb_queue_empty(&entry->skb_list) || entry->seq != seq ||
- entry->rx_queue != rx_queue ||
- entry->last_frag + 1 != frag)
- continue;
-
- f_hdr = (struct ieee80211_hdr *) entry->skb_list.next->data;
- f_fc = le16_to_cpu(f_hdr->frame_control);
-
- if ((fc & IEEE80211_FCTL_FTYPE) != (f_fc & IEEE80211_FCTL_FTYPE) ||
- compare_ether_addr(hdr->addr1, f_hdr->addr1) != 0 ||
- compare_ether_addr(hdr->addr2, f_hdr->addr2) != 0)
- continue;
-
- if (entry->first_frag_time + 2 * HZ < jiffies) {
- __skb_queue_purge(&entry->skb_list);
- continue;
- }
- return entry;
- }
-
- return NULL;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_hdr *hdr;
- u16 sc;
- unsigned int frag, seq;
- struct ieee80211_fragment_entry *entry;
- struct sk_buff *skb;
-
- hdr = (struct ieee80211_hdr *) rx->skb->data;
- sc = le16_to_cpu(hdr->seq_ctrl);
- frag = sc & IEEE80211_SCTL_FRAG;
-
- if (likely((!(rx->fc & IEEE80211_FCTL_MOREFRAGS) && frag == 0) ||
- (rx->skb)->len < 24 ||
- is_multicast_ether_addr(hdr->addr1))) {
- /* not fragmented */
- goto out;
- }
- I802_DEBUG_INC(rx->local->rx_handlers_fragments);
-
- seq = (sc & IEEE80211_SCTL_SEQ) >> 4;
-
- if (frag == 0) {
- /* This is the first fragment of a new frame. */
- entry = ieee80211_reassemble_add(rx->sdata, frag, seq,
- rx->u.rx.queue, &(rx->skb));
- if (rx->key && rx->key->alg == ALG_CCMP &&
- (rx->fc & IEEE80211_FCTL_PROTECTED)) {
- /* Store CCMP PN so that we can verify that the next
- * fragment has a sequential PN value. */
- entry->ccmp = 1;
- memcpy(entry->last_pn,
- rx->key->u.ccmp.rx_pn[rx->u.rx.queue],
- CCMP_PN_LEN);
- }
- return TXRX_QUEUED;
- }
-
- /* This is a fragment for a frame that should already be pending in
- * fragment cache. Add this fragment to the end of the pending entry.
- */
- entry = ieee80211_reassemble_find(rx->sdata, rx->fc, frag, seq,
- rx->u.rx.queue, hdr);
- if (!entry) {
- I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag);
- return TXRX_DROP;
- }
-
- /* Verify that MPDUs within one MSDU have sequential PN values.
- * (IEEE 802.11i, 8.3.3.4.5) */
- if (entry->ccmp) {
- int i;
- u8 pn[CCMP_PN_LEN], *rpn;
- if (!rx->key || rx->key->alg != ALG_CCMP)
- return TXRX_DROP;
- memcpy(pn, entry->last_pn, CCMP_PN_LEN);
- for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
- pn[i]++;
- if (pn[i])
- break;
- }
- rpn = rx->key->u.ccmp.rx_pn[rx->u.rx.queue];
- if (memcmp(pn, rpn, CCMP_PN_LEN) != 0) {
- printk(KERN_DEBUG "%s: defrag: CCMP PN not sequential"
- " A2=" MAC_FMT " PN=%02x%02x%02x%02x%02x%02x "
- "(expected %02x%02x%02x%02x%02x%02x)\n",
- rx->dev->name, MAC_ARG(hdr->addr2),
- rpn[0], rpn[1], rpn[2], rpn[3], rpn[4], rpn[5],
- pn[0], pn[1], pn[2], pn[3], pn[4], pn[5]);
- return TXRX_DROP;
- }
- memcpy(entry->last_pn, pn, CCMP_PN_LEN);
- }
-
- skb_pull(rx->skb, ieee80211_get_hdrlen(rx->fc));
- __skb_queue_tail(&entry->skb_list, rx->skb);
- entry->last_frag = frag;
- entry->extra_len += rx->skb->len;
- if (rx->fc & IEEE80211_FCTL_MOREFRAGS) {
- rx->skb = NULL;
- return TXRX_QUEUED;
- }
-
- rx->skb = __skb_dequeue(&entry->skb_list);
- if (skb_tailroom(rx->skb) < entry->extra_len) {
- I802_DEBUG_INC(rx->local->rx_expand_skb_head2);
- if (unlikely(pskb_expand_head(rx->skb, 0, entry->extra_len,
- GFP_ATOMIC))) {
- I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag);
- __skb_queue_purge(&entry->skb_list);
- return TXRX_DROP;
- }
- }
- while ((skb = __skb_dequeue(&entry->skb_list))) {
- memcpy(skb_put(rx->skb, skb->len), skb->data, skb->len);
- dev_kfree_skb(skb);
- }
-
- /* Complete frame has been reassembled - process it now */
- rx->fragmented = 1;
-
- out:
- if (rx->sta)
- rx->sta->rx_packets++;
- if (is_multicast_ether_addr(hdr->addr1))
- rx->local->dot11MulticastReceivedFrameCount++;
- else
- ieee80211_led_rx(rx->local);
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_monitor(struct ieee80211_txrx_data *rx)
-{
- if (rx->sdata->type == IEEE80211_IF_TYPE_MNTR) {
- ieee80211_rx_monitor(rx->dev, rx->skb, rx->u.rx.status);
- return TXRX_QUEUED;
- }
-
- if (rx->u.rx.status->flag & RX_FLAG_RADIOTAP)
- skb_pull(rx->skb, ieee80211_get_radiotap_len(rx->skb));
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_hdr *hdr;
- int always_sta_key;
- hdr = (struct ieee80211_hdr *) rx->skb->data;
-
- /* Drop duplicate 802.11 retransmissions (IEEE 802.11 Chap. 9.2.9) */
- if (rx->sta && !is_multicast_ether_addr(hdr->addr1)) {
- if (unlikely(rx->fc & IEEE80211_FCTL_RETRY &&
- rx->sta->last_seq_ctrl[rx->u.rx.queue] ==
- hdr->seq_ctrl)) {
- if (rx->u.rx.ra_match) {
- rx->local->dot11FrameDuplicateCount++;
- rx->sta->num_duplicates++;
- }
- return TXRX_DROP;
- } else
- rx->sta->last_seq_ctrl[rx->u.rx.queue] = hdr->seq_ctrl;
- }
-
- if ((rx->local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) &&
- rx->skb->len > FCS_LEN)
- skb_trim(rx->skb, rx->skb->len - FCS_LEN);
-
- if (unlikely(rx->skb->len < 16)) {
- I802_DEBUG_INC(rx->local->rx_handlers_drop_short);
- return TXRX_DROP;
- }
-
- if (!rx->u.rx.ra_match)
- rx->skb->pkt_type = PACKET_OTHERHOST;
- else if (compare_ether_addr(rx->dev->dev_addr, hdr->addr1) == 0)
- rx->skb->pkt_type = PACKET_HOST;
- else if (is_multicast_ether_addr(hdr->addr1)) {
- if (is_broadcast_ether_addr(hdr->addr1))
- rx->skb->pkt_type = PACKET_BROADCAST;
- else
- rx->skb->pkt_type = PACKET_MULTICAST;
- } else
- rx->skb->pkt_type = PACKET_OTHERHOST;
-
- /* Drop disallowed frame classes based on STA auth/assoc state;
- * IEEE 802.11, Chap 5.5.
- *
- * 80211.o does filtering only based on association state, i.e., it
- * drops Class 3 frames from not associated stations. hostapd sends
- * deauth/disassoc frames when needed. In addition, hostapd is
- * responsible for filtering on both auth and assoc states.
- */
- if (unlikely(((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA ||
- ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL &&
- (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)) &&
- rx->sdata->type != IEEE80211_IF_TYPE_IBSS &&
- (!rx->sta || !(rx->sta->flags & WLAN_STA_ASSOC)))) {
- if ((!(rx->fc & IEEE80211_FCTL_FROMDS) &&
- !(rx->fc & IEEE80211_FCTL_TODS) &&
- (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)
- || !rx->u.rx.ra_match) {
- /* Drop IBSS frames and frames for other hosts
- * silently. */
- return TXRX_DROP;
- }
-
- if (!rx->local->apdev)
- return TXRX_DROP;
-
- ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
- ieee80211_msg_sta_not_assoc);
- return TXRX_QUEUED;
- }
-
- if (rx->sdata->type == IEEE80211_IF_TYPE_STA)
- always_sta_key = 0;
- else
- always_sta_key = 1;
-
- if (rx->sta && rx->sta->key && always_sta_key) {
- rx->key = rx->sta->key;
- } else {
- if (rx->sta && rx->sta->key)
- rx->key = rx->sta->key;
- else
- rx->key = rx->sdata->default_key;
-
- if ((rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) &&
- rx->fc & IEEE80211_FCTL_PROTECTED) {
- int keyidx = ieee80211_wep_get_keyidx(rx->skb);
-
- if (keyidx >= 0 && keyidx < NUM_DEFAULT_KEYS &&
- (!rx->sta || !rx->sta->key || keyidx > 0))
- rx->key = rx->sdata->keys[keyidx];
-
- if (!rx->key) {
- if (!rx->u.rx.ra_match)
- return TXRX_DROP;
- printk(KERN_DEBUG "%s: RX WEP frame with "
- "unknown keyidx %d (A1=" MAC_FMT " A2="
- MAC_FMT " A3=" MAC_FMT ")\n",
- rx->dev->name, keyidx,
- MAC_ARG(hdr->addr1),
- MAC_ARG(hdr->addr2),
- MAC_ARG(hdr->addr3));
- if (!rx->local->apdev)
- return TXRX_DROP;
- ieee80211_rx_mgmt(
- rx->local, rx->skb, rx->u.rx.status,
- ieee80211_msg_wep_frame_unknown_key);
- return TXRX_QUEUED;
- }
- }
- }
-
- if (rx->fc & IEEE80211_FCTL_PROTECTED && rx->key && rx->u.rx.ra_match) {
- rx->key->tx_rx_count++;
- if (unlikely(rx->local->key_tx_rx_threshold &&
- rx->key->tx_rx_count >
- rx->local->key_tx_rx_threshold)) {
- ieee80211_key_threshold_notify(rx->dev, rx->key,
- rx->sta);
- }
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_sta_process(struct ieee80211_txrx_data *rx)
-{
- struct sta_info *sta = rx->sta;
- struct net_device *dev = rx->dev;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
-
- if (!sta)
- return TXRX_CONTINUE;
-
- /* Update last_rx only for IBSS packets which are for the current
- * BSSID to avoid keeping the current IBSS network alive in cases where
- * other STAs are using different BSSID. */
- if (rx->sdata->type == IEEE80211_IF_TYPE_IBSS) {
- u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len);
- if (compare_ether_addr(bssid, rx->sdata->u.sta.bssid) == 0)
- sta->last_rx = jiffies;
- } else
- if (!is_multicast_ether_addr(hdr->addr1) ||
- rx->sdata->type == IEEE80211_IF_TYPE_STA) {
- /* Update last_rx only for unicast frames in order to prevent
- * the Probe Request frames (the only broadcast frames from a
- * STA in infrastructure mode) from keeping a connection alive.
- */
- sta->last_rx = jiffies;
- }
-
- if (!rx->u.rx.ra_match)
- return TXRX_CONTINUE;
-
- sta->rx_fragments++;
- sta->rx_bytes += rx->skb->len;
- sta->last_rssi = (sta->last_rssi * 15 +
- rx->u.rx.status->ssi) / 16;
- sta->last_signal = (sta->last_signal * 15 +
- rx->u.rx.status->signal) / 16;
- sta->last_noise = (sta->last_noise * 15 +
- rx->u.rx.status->noise) / 16;
-
- if (!(rx->fc & IEEE80211_FCTL_MOREFRAGS)) {
- /* Change STA power saving mode only in the end of a frame
- * exchange sequence */
- if ((sta->flags & WLAN_STA_PS) && !(rx->fc & IEEE80211_FCTL_PM))
- rx->u.rx.sent_ps_buffered += ap_sta_ps_end(dev, sta);
- else if (!(sta->flags & WLAN_STA_PS) &&
- (rx->fc & IEEE80211_FCTL_PM))
- ap_sta_ps_start(dev, sta);
- }
-
- /* Drop data::nullfunc frames silently, since they are used only to
- * control station power saving mode. */
- if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_NULLFUNC) {
- I802_DEBUG_INC(rx->local->rx_handlers_drop_nullfunc);
- /* Update counter and free packet here to avoid counting this
- * as a dropped packed. */
- sta->rx_packets++;
- dev_kfree_skb(rx->skb);
- return TXRX_QUEUED;
- }
-
- return TXRX_CONTINUE;
-} /* ieee80211_rx_h_sta_process */
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_wep_weak_iv_detection(struct ieee80211_txrx_data *rx)
-{
- if (!rx->sta || !(rx->fc & IEEE80211_FCTL_PROTECTED) ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
- !rx->key || rx->key->alg != ALG_WEP || !rx->u.rx.ra_match)
- return TXRX_CONTINUE;
-
- /* Check for weak IVs, if hwaccel did not remove IV from the frame */
- if ((rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) ||
- rx->key->force_sw_encrypt) {
- u8 *iv = ieee80211_wep_is_weak_iv(rx->skb, rx->key);
- if (iv) {
- rx->sta->wep_weak_iv_count++;
- }
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_wep_decrypt(struct ieee80211_txrx_data *rx)
-{
- /* If the device handles decryption totally, skip this test */
- if (rx->local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP)
- return TXRX_CONTINUE;
-
- if ((rx->key && rx->key->alg != ALG_WEP) ||
- !(rx->fc & IEEE80211_FCTL_PROTECTED) ||
- ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
- ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)))
- return TXRX_CONTINUE;
-
- if (!rx->key) {
- printk(KERN_DEBUG "%s: RX WEP frame, but no key set\n",
- rx->dev->name);
- return TXRX_DROP;
- }
-
- if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED) ||
- rx->key->force_sw_encrypt) {
- if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key)) {
- printk(KERN_DEBUG "%s: RX WEP frame, decrypt "
- "failed\n", rx->dev->name);
- return TXRX_DROP;
- }
- } else if (rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) {
- ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key);
- /* remove ICV */
- skb_trim(rx->skb, rx->skb->len - 4);
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_802_1x_pae(struct ieee80211_txrx_data *rx)
-{
- if (rx->sdata->eapol && ieee80211_is_eapol(rx->skb) &&
- rx->sdata->type != IEEE80211_IF_TYPE_STA && rx->u.rx.ra_match) {
- /* Pass both encrypted and unencrypted EAPOL frames to user
- * space for processing. */
- if (!rx->local->apdev)
- return TXRX_DROP;
- ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
- ieee80211_msg_normal);
- return TXRX_QUEUED;
- }
-
- if (unlikely(rx->sdata->ieee802_1x &&
- (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
- (!rx->sta || !(rx->sta->flags & WLAN_STA_AUTHORIZED)) &&
- !ieee80211_is_eapol(rx->skb))) {
-#ifdef CONFIG_MAC80211_DEBUG
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *) rx->skb->data;
- printk(KERN_DEBUG "%s: dropped frame from " MAC_FMT
- " (unauthorized port)\n", rx->dev->name,
- MAC_ARG(hdr->addr2));
-#endif /* CONFIG_MAC80211_DEBUG */
- return TXRX_DROP;
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_drop_unencrypted(struct ieee80211_txrx_data *rx)
-{
- /* If the device handles decryption totally, skip this test */
- if (rx->local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP)
- return TXRX_CONTINUE;
-
- /* Drop unencrypted frames if key is set. */
- if (unlikely(!(rx->fc & IEEE80211_FCTL_PROTECTED) &&
- (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
- (rx->key || rx->sdata->drop_unencrypted) &&
- (rx->sdata->eapol == 0 ||
- !ieee80211_is_eapol(rx->skb)))) {
- printk(KERN_DEBUG "%s: RX non-WEP frame, but expected "
- "encryption\n", rx->dev->name);
- return TXRX_DROP;
- }
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_sub_if_data *sdata;
-
- if (!rx->u.rx.ra_match)
- return TXRX_DROP;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
- if ((sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) &&
- !rx->local->user_space_mlme) {
- ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->u.rx.status);
- } else {
- /* Management frames are sent to hostapd for processing */
- if (!rx->local->apdev)
- return TXRX_DROP;
- ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
- ieee80211_msg_normal);
- }
- return TXRX_QUEUED;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_passive_scan(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_local *local = rx->local;
- struct sk_buff *skb = rx->skb;
-
- if (unlikely(local->sta_scanning != 0)) {
- ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status);
- return TXRX_QUEUED;
- }
-
- if (unlikely(rx->u.rx.in_scan)) {
- /* scanning finished during invoking of handlers */
- I802_DEBUG_INC(local->rx_handlers_drop_passive_scan);
- return TXRX_DROP;
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static void ieee80211_rx_michael_mic_report(struct net_device *dev,
- struct ieee80211_hdr *hdr,
- struct sta_info *sta,
- struct ieee80211_txrx_data *rx)
-{
- int keyidx, hdrlen;
-
- hdrlen = ieee80211_get_hdrlen_from_skb(rx->skb);
- if (rx->skb->len >= hdrlen + 4)
- keyidx = rx->skb->data[hdrlen + 3] >> 6;
- else
- keyidx = -1;
-
- /* TODO: verify that this is not triggered by fragmented
- * frames (hw does not verify MIC for them). */
- printk(KERN_DEBUG "%s: TKIP hwaccel reported Michael MIC "
- "failure from " MAC_FMT " to " MAC_FMT " keyidx=%d\n",
- dev->name, MAC_ARG(hdr->addr2), MAC_ARG(hdr->addr1), keyidx);
-
- if (!sta) {
- /* Some hardware versions seem to generate incorrect
- * Michael MIC reports; ignore them to avoid triggering
- * countermeasures. */
- printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
- "error for unknown address " MAC_FMT "\n",
- dev->name, MAC_ARG(hdr->addr2));
- goto ignore;
- }
-
- if (!(rx->fc & IEEE80211_FCTL_PROTECTED)) {
- printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
- "error for a frame with no ISWEP flag (src "
- MAC_FMT ")\n", dev->name, MAC_ARG(hdr->addr2));
- goto ignore;
- }
-
- if ((rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) &&
- rx->sdata->type == IEEE80211_IF_TYPE_AP) {
- keyidx = ieee80211_wep_get_keyidx(rx->skb);
- /* AP with Pairwise keys support should never receive Michael
- * MIC errors for non-zero keyidx because these are reserved
- * for group keys and only the AP is sending real multicast
- * frames in BSS. */
- if (keyidx) {
- printk(KERN_DEBUG "%s: ignored Michael MIC error for "
- "a frame with non-zero keyidx (%d) (src " MAC_FMT
- ")\n", dev->name, keyidx, MAC_ARG(hdr->addr2));
- goto ignore;
- }
- }
-
- if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
- ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)) {
- printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
- "error for a frame that cannot be encrypted "
- "(fc=0x%04x) (src " MAC_FMT ")\n",
- dev->name, rx->fc, MAC_ARG(hdr->addr2));
- goto ignore;
- }
-
- do {
- union iwreq_data wrqu;
- char *buf = kmalloc(128, GFP_ATOMIC);
- if (!buf)
- break;
-
- /* TODO: needed parameters: count, key type, TSC */
- sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
- "keyid=%d %scast addr=" MAC_FMT ")",
- keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni",
- MAC_ARG(hdr->addr2));
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = strlen(buf);
- wireless_send_event(rx->dev, IWEVCUSTOM, &wrqu, buf);
- kfree(buf);
- } while (0);
-
- /* TODO: consider verifying the MIC error report with software
- * implementation if we get too many spurious reports from the
- * hardware. */
- if (!rx->local->apdev)
- goto ignore;
- ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
- ieee80211_msg_michael_mic_failure);
- return;
-
- ignore:
- dev_kfree_skb(rx->skb);
- rx->skb = NULL;
-}
-
-static inline ieee80211_txrx_result __ieee80211_invoke_rx_handlers(
- struct ieee80211_local *local,
- ieee80211_rx_handler *handlers,
- struct ieee80211_txrx_data *rx,
- struct sta_info *sta)
-{
- ieee80211_rx_handler *handler;
- ieee80211_txrx_result res = TXRX_DROP;
-
- for (handler = handlers; *handler != NULL; handler++) {
- res = (*handler)(rx);
- if (res != TXRX_CONTINUE) {
- if (res == TXRX_DROP) {
- I802_DEBUG_INC(local->rx_handlers_drop);
- if (sta)
- sta->rx_dropped++;
- }
- if (res == TXRX_QUEUED)
- I802_DEBUG_INC(local->rx_handlers_queued);
- break;
- }
- }
-
- if (res == TXRX_DROP) {
- dev_kfree_skb(rx->skb);
- }
- return res;
-}
-
-static inline void ieee80211_invoke_rx_handlers(struct ieee80211_local *local,
- ieee80211_rx_handler *handlers,
- struct ieee80211_txrx_data *rx,
- struct sta_info *sta)
-{
- if (__ieee80211_invoke_rx_handlers(local, handlers, rx, sta) ==
- TXRX_CONTINUE)
- dev_kfree_skb(rx->skb);
-}
-
-/*
- * This is the receive path handler. It is called by a low level driver when an
- * 802.11 MPDU is received from the hardware.
- */
-void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_rx_status *status)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
- struct ieee80211_hdr *hdr;
- struct ieee80211_txrx_data rx;
- u16 type;
- int multicast;
- int radiotap_len = 0;
-
- if (status->flag & RX_FLAG_RADIOTAP) {
- radiotap_len = ieee80211_get_radiotap_len(skb);
- skb_pull(skb, radiotap_len);
- }
-
- hdr = (struct ieee80211_hdr *) skb->data;
- memset(&rx, 0, sizeof(rx));
- rx.skb = skb;
- rx.local = local;
-
- rx.u.rx.status = status;
- rx.fc = skb->len >= 2 ? le16_to_cpu(hdr->frame_control) : 0;
- type = rx.fc & IEEE80211_FCTL_FTYPE;
- if (type == IEEE80211_FTYPE_DATA || type == IEEE80211_FTYPE_MGMT)
- local->dot11ReceivedFragmentCount++;
- multicast = is_multicast_ether_addr(hdr->addr1);
-
- if (skb->len >= 16)
- sta = rx.sta = sta_info_get(local, hdr->addr2);
- else
- sta = rx.sta = NULL;
-
- if (sta) {
- rx.dev = sta->dev;
- rx.sdata = IEEE80211_DEV_TO_SUB_IF(rx.dev);
- }
-
- if ((status->flag & RX_FLAG_MMIC_ERROR)) {
- ieee80211_rx_michael_mic_report(local->mdev, hdr, sta, &rx);
- goto end;
- }
-
- if (unlikely(local->sta_scanning))
- rx.u.rx.in_scan = 1;
-
- if (__ieee80211_invoke_rx_handlers(local, local->rx_pre_handlers, &rx,
- sta) != TXRX_CONTINUE)
- goto end;
- skb = rx.skb;
-
- skb_push(skb, radiotap_len);
- if (sta && !sta->assoc_ap && !(sta->flags & WLAN_STA_WDS) &&
- !local->iff_promiscs && !multicast) {
- rx.u.rx.ra_match = 1;
- ieee80211_invoke_rx_handlers(local, local->rx_handlers, &rx,
- sta);
- } else {
- struct ieee80211_sub_if_data *prev = NULL;
- struct sk_buff *skb_new;
- u8 *bssid = ieee80211_get_bssid(hdr, skb->len - radiotap_len);
-
- read_lock(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list) {
- rx.u.rx.ra_match = 1;
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_STA:
- if (!bssid)
- continue;
- if (!ieee80211_bssid_match(bssid,
- sdata->u.sta.bssid)) {
- if (!rx.u.rx.in_scan)
- continue;
- rx.u.rx.ra_match = 0;
- } else if (!multicast &&
- compare_ether_addr(sdata->dev->dev_addr,
- hdr->addr1) != 0) {
- if (!sdata->promisc)
- continue;
- rx.u.rx.ra_match = 0;
- }
- break;
- case IEEE80211_IF_TYPE_IBSS:
- if (!bssid)
- continue;
- if (!ieee80211_bssid_match(bssid,
- sdata->u.sta.bssid)) {
- if (!rx.u.rx.in_scan)
- continue;
- rx.u.rx.ra_match = 0;
- } else if (!multicast &&
- compare_ether_addr(sdata->dev->dev_addr,
- hdr->addr1) != 0) {
- if (!sdata->promisc)
- continue;
- rx.u.rx.ra_match = 0;
- } else if (!sta)
- sta = rx.sta =
- ieee80211_ibss_add_sta(sdata->dev,
- skb, bssid,
- hdr->addr2);
- break;
- case IEEE80211_IF_TYPE_AP:
- if (!bssid) {
- if (compare_ether_addr(sdata->dev->dev_addr,
- hdr->addr1) != 0)
- continue;
- } else if (!ieee80211_bssid_match(bssid,
- sdata->dev->dev_addr)) {
- if (!rx.u.rx.in_scan)
- continue;
- rx.u.rx.ra_match = 0;
- }
- if (sdata->dev == local->mdev &&
- !rx.u.rx.in_scan)
- /* do not receive anything via
- * master device when not scanning */
- continue;
- break;
- case IEEE80211_IF_TYPE_WDS:
- if (bssid ||
- (rx.fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
- continue;
- if (compare_ether_addr(sdata->u.wds.remote_addr,
- hdr->addr2) != 0)
- continue;
- break;
- }
-
- if (prev) {
- skb_new = skb_copy(skb, GFP_ATOMIC);
- if (!skb_new) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: failed to copy "
- "multicast frame for %s",
- local->mdev->name, prev->dev->name);
- continue;
- }
- rx.skb = skb_new;
- rx.dev = prev->dev;
- rx.sdata = prev;
- ieee80211_invoke_rx_handlers(local,
- local->rx_handlers,
- &rx, sta);
- }
- prev = sdata;
- }
- if (prev) {
- rx.skb = skb;
- rx.dev = prev->dev;
- rx.sdata = prev;
- ieee80211_invoke_rx_handlers(local, local->rx_handlers,
- &rx, sta);
- } else
- dev_kfree_skb(skb);
- read_unlock(&local->sub_if_lock);
+ tasklet_disable(&local->tx_pending_tasklet);
+ tasklet_disable(&local->tasklet);
}
- end:
- if (sta)
- sta_info_put(sta);
+ return 0;
}
-EXPORT_SYMBOL(__ieee80211_rx);
-static ieee80211_txrx_result
-ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx)
+static void ieee80211_set_multicast_list(struct net_device *dev)
{
- struct ieee80211_local *local = tx->local;
- struct ieee80211_hw_mode *mode = tx->u.tx.mode;
- struct sk_buff *skb = tx->skb;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u32 load = 0, hdrtime;
-
- /* TODO: this could be part of tx_status handling, so that the number
- * of retries would be known; TX rate should in that case be stored
- * somewhere with the packet */
-
- /* Estimate total channel use caused by this frame */
-
- /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values,
- * 1 usec = 1/8 * (1080 / 10) = 13.5 */
-
- if (mode->mode == MODE_IEEE80211A ||
- mode->mode == MODE_ATHEROS_TURBO ||
- mode->mode == MODE_ATHEROS_TURBOG ||
- (mode->mode == MODE_IEEE80211G &&
- tx->u.tx.rate->flags & IEEE80211_RATE_ERP))
- hdrtime = CHAN_UTIL_HDR_SHORT;
- else
- hdrtime = CHAN_UTIL_HDR_LONG;
-
- load = hdrtime;
- if (!is_multicast_ether_addr(hdr->addr1))
- load += hdrtime;
-
- if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_RTS_CTS)
- load += 2 * hdrtime;
- else if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
- load += hdrtime;
-
- load += skb->len * tx->u.tx.rate->rate_inv;
-
- if (tx->u.tx.extra_frag) {
- int i;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- load += 2 * hdrtime;
- load += tx->u.tx.extra_frag[i]->len *
- tx->u.tx.rate->rate;
- }
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int allmulti, promisc, sdata_allmulti, sdata_promisc;
+
+ allmulti = !!(dev->flags & IFF_ALLMULTI);
+ promisc = !!(dev->flags & IFF_PROMISC);
+ sdata_allmulti = sdata->flags & IEEE80211_SDATA_ALLMULTI;
+ sdata_promisc = sdata->flags & IEEE80211_SDATA_PROMISC;
+
+ if (allmulti != sdata_allmulti) {
+ if (dev->flags & IFF_ALLMULTI)
+ atomic_inc(&local->iff_allmultis);
+ else
+ atomic_dec(&local->iff_allmultis);
+ sdata->flags ^= IEEE80211_SDATA_ALLMULTI;
+ }
+
+ if (promisc != sdata_promisc) {
+ if (dev->flags & IFF_PROMISC)
+ atomic_inc(&local->iff_promiscs);
+ else
+ atomic_dec(&local->iff_promiscs);
+ sdata->flags ^= IEEE80211_SDATA_PROMISC;
}
- /* Divide channel_use by 8 to avoid wrapping around the counter */
- load >>= CHAN_UTIL_SHIFT;
- local->channel_use_raw += load;
- if (tx->sta)
- tx->sta->channel_use_raw += load;
- tx->sdata->channel_use_raw += load;
+ dev_mc_sync(local->mdev, dev);
+}
- return TXRX_CONTINUE;
+/* Must not be called for mdev */
+void ieee80211_if_setup(struct net_device *dev)
+{
+ ether_setup(dev);
+ dev->hard_start_xmit = ieee80211_subif_start_xmit;
+ dev->wireless_handlers = &ieee80211_iw_handler_def;
+ dev->set_multicast_list = ieee80211_set_multicast_list;
+ dev->change_mtu = ieee80211_change_mtu;
+ dev->open = ieee80211_open;
+ dev->stop = ieee80211_stop;
+ dev->destructor = ieee80211_if_free;
}
+/* WDS specialties */
-static ieee80211_txrx_result
-ieee80211_rx_h_load_stats(struct ieee80211_txrx_data *rx)
+int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr)
{
- struct ieee80211_local *local = rx->local;
- struct sk_buff *skb = rx->skb;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u32 load = 0, hdrtime;
- struct ieee80211_rate *rate;
- struct ieee80211_hw_mode *mode = local->hw.conf.mode;
- int i;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct sta_info *sta;
- /* Estimate total channel use caused by this frame */
+ if (compare_ether_addr(remote_addr, sdata->u.wds.remote_addr) == 0)
+ return 0;
- if (unlikely(mode->num_rates < 0))
- return TXRX_CONTINUE;
+ /* Create STA entry for the new peer */
+ sta = sta_info_add(local, dev, remote_addr, GFP_KERNEL);
+ if (!sta)
+ return -ENOMEM;
+ sta_info_put(sta);
- rate = &mode->rates[0];
- for (i = 0; i < mode->num_rates; i++) {
- if (mode->rates[i].val == rx->u.rx.status->rate) {
- rate = &mode->rates[i];
- break;
- }
+ /* Remove STA entry for the old peer */
+ sta = sta_info_get(local, sdata->u.wds.remote_addr);
+ if (sta) {
+ sta_info_free(sta);
+ sta_info_put(sta);
+ } else {
+ printk(KERN_DEBUG "%s: could not find STA entry for WDS link "
+ "peer " MAC_FMT "\n",
+ dev->name, MAC_ARG(sdata->u.wds.remote_addr));
}
- /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values,
- * 1 usec = 1/8 * (1080 / 10) = 13.5 */
+ /* Update WDS link data */
+ memcpy(&sdata->u.wds.remote_addr, remote_addr, ETH_ALEN);
- if (mode->mode == MODE_IEEE80211A ||
- mode->mode == MODE_ATHEROS_TURBO ||
- mode->mode == MODE_ATHEROS_TURBOG ||
- (mode->mode == MODE_IEEE80211G &&
- rate->flags & IEEE80211_RATE_ERP))
- hdrtime = CHAN_UTIL_HDR_SHORT;
- else
- hdrtime = CHAN_UTIL_HDR_LONG;
+ return 0;
+}
- load = hdrtime;
- if (!is_multicast_ether_addr(hdr->addr1))
- load += hdrtime;
+/* everything else */
- load += skb->len * rate->rate_inv;
+static int __ieee80211_if_config(struct net_device *dev,
+ struct sk_buff *beacon,
+ struct ieee80211_tx_control *control)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_if_conf conf;
- /* Divide channel_use by 8 to avoid wrapping around the counter */
- load >>= CHAN_UTIL_SHIFT;
- local->channel_use_raw += load;
- if (rx->sta)
- rx->sta->channel_use_raw += load;
- rx->u.rx.load = load;
+ if (!local->ops->config_interface || !netif_running(dev))
+ return 0;
- return TXRX_CONTINUE;
+ memset(&conf, 0, sizeof(conf));
+ conf.type = sdata->type;
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ conf.bssid = sdata->u.sta.bssid;
+ conf.ssid = sdata->u.sta.ssid;
+ conf.ssid_len = sdata->u.sta.ssid_len;
+ } else if (sdata->type == IEEE80211_IF_TYPE_AP) {
+ conf.ssid = sdata->u.ap.ssid;
+ conf.ssid_len = sdata->u.ap.ssid_len;
+ conf.beacon = beacon;
+ conf.beacon_control = control;
+ }
+ return local->ops->config_interface(local_to_hw(local),
+ dev->ifindex, &conf);
}
-static ieee80211_txrx_result
-ieee80211_rx_h_if_stats(struct ieee80211_txrx_data *rx)
+int ieee80211_if_config(struct net_device *dev)
{
- rx->sdata->channel_use_raw += rx->u.rx.load;
- return TXRX_CONTINUE;
+ return __ieee80211_if_config(dev, NULL, NULL);
}
-static void ieee80211_stat_refresh(unsigned long data)
+int ieee80211_if_config_beacon(struct net_device *dev)
{
- struct ieee80211_local *local = (struct ieee80211_local *) data;
- struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_tx_control control;
+ struct sk_buff *skb;
- if (!local->stat_time)
- return;
+ if (!(local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE))
+ return 0;
+ skb = ieee80211_beacon_get(local_to_hw(local), dev->ifindex, &control);
+ if (!skb)
+ return -ENOMEM;
+ return __ieee80211_if_config(dev, skb, &control);
+}
+
+int ieee80211_hw_config(struct ieee80211_local *local)
+{
+ struct ieee80211_hw_mode *mode;
+ struct ieee80211_channel *chan;
+ int ret = 0;
- /* go through all stations */
- spin_lock_bh(&local->sta_lock);
- list_for_each_entry(sta, &local->sta_list, list) {
- sta->channel_use = (sta->channel_use_raw / local->stat_time) /
- CHAN_UTIL_PER_10MS;
- sta->channel_use_raw = 0;
+ if (local->sta_scanning) {
+ chan = local->scan_channel;
+ mode = local->scan_hw_mode;
+ } else {
+ chan = local->oper_channel;
+ mode = local->oper_hw_mode;
}
- spin_unlock_bh(&local->sta_lock);
-
- /* go through all subinterfaces */
- read_lock(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list) {
- sdata->channel_use = (sdata->channel_use_raw /
- local->stat_time) / CHAN_UTIL_PER_10MS;
- sdata->channel_use_raw = 0;
+
+ local->hw.conf.channel = chan->chan;
+ local->hw.conf.channel_val = chan->val;
+ if (!local->hw.conf.power_level) {
+ local->hw.conf.power_level = chan->power_level;
+ } else {
+ local->hw.conf.power_level = min(chan->power_level,
+ local->hw.conf.power_level);
}
- read_unlock(&local->sub_if_lock);
+ local->hw.conf.freq = chan->freq;
+ local->hw.conf.phymode = mode->mode;
+ local->hw.conf.antenna_max = chan->antenna_max;
+ local->hw.conf.chan = chan;
+ local->hw.conf.mode = mode;
- /* hardware interface */
- local->channel_use = (local->channel_use_raw /
- local->stat_time) / CHAN_UTIL_PER_10MS;
- local->channel_use_raw = 0;
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "HW CONFIG: channel=%d freq=%d "
+ "phymode=%d\n", local->hw.conf.channel, local->hw.conf.freq,
+ local->hw.conf.phymode);
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- local->stat_timer.expires = jiffies + HZ * local->stat_time / 100;
- add_timer(&local->stat_timer);
-}
+ if (local->open_count)
+ ret = local->ops->config(local_to_hw(local), &local->hw.conf);
+ return ret;
+}
-/* This is a version of the rx handler that can be called from hard irq
- * context. Post the skb on the queue and schedule the tasklet */
-void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_rx_status *status)
+void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes)
{
- struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (local->ops->erp_ie_changed)
+ local->ops->erp_ie_changed(local_to_hw(local), changes,
+ !!(sdata->flags & IEEE80211_SDATA_USE_PROTECTION),
+ !(sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE));
+}
- BUILD_BUG_ON(sizeof(struct ieee80211_rx_status) > sizeof(skb->cb));
+void ieee80211_reset_erp_info(struct net_device *dev)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- skb->dev = local->mdev;
- /* copy status into skb->cb for use by tasklet */
- memcpy(skb->cb, status, sizeof(*status));
- skb->pkt_type = IEEE80211_RX_MSG;
- skb_queue_tail(&local->skb_queue, skb);
- tasklet_schedule(&local->tasklet);
+ sdata->flags &= ~(IEEE80211_SDATA_USE_PROTECTION |
+ IEEE80211_SDATA_SHORT_PREAMBLE);
+ ieee80211_erp_info_change_notify(dev,
+ IEEE80211_ERP_CHANGE_PROTECTION |
+ IEEE80211_ERP_CHANGE_PREAMBLE);
}
-EXPORT_SYMBOL(ieee80211_rx_irqsafe);
void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
struct sk_buff *skb,
break;
default: /* should never get here! */
printk(KERN_ERR "%s: Unknown message type (%d)\n",
- local->mdev->name, skb->pkt_type);
+ wiphy_name(local->hw.wiphy), skb->pkt_type);
dev_kfree_skb(skb);
break;
}
}
}
-
/* Remove added headers (e.g., QoS control), encryption header/MIC, etc. to
* make a prepared TX frame (one that has been given to hw) to look like brand
* new IEEE 802.11 frame that is ready to go through TX processing again.
pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
pkt_data->ifindex = control->ifindex;
- pkt_data->mgmt_iface = (control->type == IEEE80211_IF_TYPE_MGMT);
- pkt_data->req_tx_status = !!(control->flags & IEEE80211_TXCTL_REQ_TX_STATUS);
- pkt_data->do_not_encrypt = !!(control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT);
- pkt_data->requeue = !!(control->flags & IEEE80211_TXCTL_REQUEUE);
+ pkt_data->flags = 0;
+ if (control->flags & IEEE80211_TXCTL_REQ_TX_STATUS)
+ pkt_data->flags |= IEEE80211_TXPD_REQ_TX_STATUS;
+ if (control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)
+ pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
+ if (control->flags & IEEE80211_TXCTL_REQUEUE)
+ pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
pkt_data->queue = control->queue;
hdrlen = ieee80211_get_hdrlen_from_skb(skb);
if (!key)
goto no_key;
- switch (key->alg) {
+ switch (key->conf.alg) {
case ALG_WEP:
iv_len = WEP_IV_LEN;
mic_len = WEP_ICV_LEN;
goto no_key;
}
- if (skb->len >= mic_len && key->force_sw_encrypt)
+ if (skb->len >= mic_len &&
+ !(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
skb_trim(skb, skb->len - mic_len);
if (skb->len >= iv_len && skb->len > hdrlen) {
memmove(skb->data + iv_len, skb->data, hdrlen);
}
}
-
void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
struct ieee80211_tx_status *status)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_local *local = hw_to_local(hw);
u16 frag, type;
- u32 msg_type;
+ struct ieee80211_tx_status_rtap_hdr *rthdr;
+ struct ieee80211_sub_if_data *sdata;
+ int monitors;
if (!status) {
printk(KERN_ERR
"%s: ieee80211_tx_status called with NULL status\n",
- local->mdev->name);
+ wiphy_name(local->hw.wiphy));
dev_kfree_skb(skb);
return;
}
printk(KERN_DEBUG "%s: dropped TX "
"filtered frame queue_len=%d "
"PS=%d @%lu\n",
- local->mdev->name,
+ wiphy_name(local->hw.wiphy),
skb_queue_len(
&sta->tx_filtered),
!!(sta->flags & WLAN_STA_PS),
local->dot11FailedCount++;
}
- if (!(status->control.flags & IEEE80211_TXCTL_REQ_TX_STATUS)
- || unlikely(!local->apdev)) {
+ /* this was a transmitted frame, but now we want to reuse it */
+ skb_orphan(skb);
+
+ if (!local->monitors) {
dev_kfree_skb(skb);
return;
}
- msg_type = (status->flags & IEEE80211_TX_STATUS_ACK) ?
- ieee80211_msg_tx_callback_ack : ieee80211_msg_tx_callback_fail;
+ /* send frame to monitor interfaces now */
- /* skb was the original skb used for TX. Clone it and give the clone
- * to netif_rx(). Free original skb. */
- skb2 = skb_copy(skb, GFP_ATOMIC);
- if (!skb2) {
+ if (skb_headroom(skb) < sizeof(*rthdr)) {
+ printk(KERN_ERR "ieee80211_tx_status: headroom too small\n");
dev_kfree_skb(skb);
return;
}
- dev_kfree_skb(skb);
- skb = skb2;
-
- /* Send frame to hostapd */
- ieee80211_rx_mgmt(local, skb, NULL, msg_type);
-}
-EXPORT_SYMBOL(ieee80211_tx_status);
-
-/* TODO: implement register/unregister functions for adding TX/RX handlers
- * into ordered list */
-
-/* rx_pre handlers don't have dev and sdata fields available in
- * ieee80211_txrx_data */
-static ieee80211_rx_handler ieee80211_rx_pre_handlers[] =
-{
- ieee80211_rx_h_parse_qos,
- ieee80211_rx_h_load_stats,
- NULL
-};
-
-static ieee80211_rx_handler ieee80211_rx_handlers[] =
-{
- ieee80211_rx_h_if_stats,
- ieee80211_rx_h_monitor,
- ieee80211_rx_h_passive_scan,
- ieee80211_rx_h_check,
- ieee80211_rx_h_sta_process,
- ieee80211_rx_h_ccmp_decrypt,
- ieee80211_rx_h_tkip_decrypt,
- ieee80211_rx_h_wep_weak_iv_detection,
- ieee80211_rx_h_wep_decrypt,
- ieee80211_rx_h_defragment,
- ieee80211_rx_h_ps_poll,
- ieee80211_rx_h_michael_mic_verify,
- /* this must be after decryption - so header is counted in MPDU mic
- * must be before pae and data, so QOS_DATA format frames
- * are not passed to user space by these functions
- */
- ieee80211_rx_h_remove_qos_control,
- ieee80211_rx_h_802_1x_pae,
- ieee80211_rx_h_drop_unencrypted,
- ieee80211_rx_h_data_agg,
- ieee80211_rx_h_data,
- ieee80211_rx_h_mgmt,
- NULL
-};
-
-static ieee80211_tx_handler ieee80211_tx_handlers[] =
-{
- ieee80211_tx_h_check_assoc,
- ieee80211_tx_h_sequence,
- ieee80211_tx_h_ps_buf,
- ieee80211_tx_h_select_key,
- ieee80211_tx_h_michael_mic_add,
- ieee80211_tx_h_fragment,
- ieee80211_tx_h_tkip_encrypt,
- ieee80211_tx_h_ccmp_encrypt,
- ieee80211_tx_h_wep_encrypt,
- ieee80211_tx_h_rate_ctrl,
- ieee80211_tx_h_misc,
- ieee80211_tx_h_load_stats,
- NULL
-};
-
-
-int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct sta_info *sta;
-
- if (compare_ether_addr(remote_addr, sdata->u.wds.remote_addr) == 0)
- return 0;
-
- /* Create STA entry for the new peer */
- sta = sta_info_add(local, dev, remote_addr, GFP_KERNEL);
- if (!sta)
- return -ENOMEM;
- sta_info_put(sta);
- /* Remove STA entry for the old peer */
- sta = sta_info_get(local, sdata->u.wds.remote_addr);
- if (sta) {
- sta_info_put(sta);
- sta_info_free(sta, 0);
- } else {
- printk(KERN_DEBUG "%s: could not find STA entry for WDS link "
- "peer " MAC_FMT "\n",
- dev->name, MAC_ARG(sdata->u.wds.remote_addr));
- }
+ rthdr = (struct ieee80211_tx_status_rtap_hdr*)
+ skb_push(skb, sizeof(*rthdr));
- /* Update WDS link data */
- memcpy(&sdata->u.wds.remote_addr, remote_addr, ETH_ALEN);
+ memset(rthdr, 0, sizeof(*rthdr));
+ rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr));
+ rthdr->hdr.it_present =
+ cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) |
+ (1 << IEEE80211_RADIOTAP_DATA_RETRIES));
- return 0;
-}
+ if (!(status->flags & IEEE80211_TX_STATUS_ACK) &&
+ !is_multicast_ether_addr(hdr->addr1))
+ rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL);
-/* Must not be called for mdev and apdev */
-void ieee80211_if_setup(struct net_device *dev)
-{
- ether_setup(dev);
- dev->hard_start_xmit = ieee80211_subif_start_xmit;
- dev->wireless_handlers = &ieee80211_iw_handler_def;
- dev->do_ioctl = ieee80211_ioctl;
- dev->set_multicast_list = ieee80211_set_multicast_list;
- dev->change_mtu = ieee80211_change_mtu;
- dev->get_stats = ieee80211_get_stats;
- dev->open = ieee80211_open;
- dev->stop = ieee80211_stop;
- dev->uninit = ieee80211_if_reinit;
- dev->destructor = ieee80211_if_free;
-}
+ if ((status->control.flags & IEEE80211_TXCTL_USE_RTS_CTS) &&
+ (status->control.flags & IEEE80211_TXCTL_USE_CTS_PROTECT))
+ rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS);
+ else if (status->control.flags & IEEE80211_TXCTL_USE_RTS_CTS)
+ rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS);
-void ieee80211_if_mgmt_setup(struct net_device *dev)
-{
- ether_setup(dev);
- dev->hard_start_xmit = ieee80211_mgmt_start_xmit;
- dev->change_mtu = ieee80211_change_mtu_apdev;
- dev->get_stats = ieee80211_get_stats;
- dev->open = ieee80211_mgmt_open;
- dev->stop = ieee80211_mgmt_stop;
- dev->type = ARPHRD_IEEE80211_PRISM;
- dev->hard_header_parse = header_parse_80211;
- dev->uninit = ieee80211_if_reinit;
- dev->destructor = ieee80211_if_free;
-}
+ rthdr->data_retries = status->retry_count;
-int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
- const char *name)
-{
- struct rate_control_ref *ref, *old;
-
- ASSERT_RTNL();
- if (local->open_count || netif_running(local->mdev) ||
- (local->apdev && netif_running(local->apdev)))
- return -EBUSY;
-
- ref = rate_control_alloc(name, local);
- if (!ref) {
- printk(KERN_WARNING "%s: Failed to select rate control "
- "algorithm\n", local->mdev->name);
- return -ENOENT;
- }
+ rcu_read_lock();
+ monitors = local->monitors;
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ /*
+ * Using the monitors counter is possibly racy, but
+ * if the value is wrong we simply either clone the skb
+ * once too much or forget sending it to one monitor iface
+ * The latter case isn't nice but fixing the race is much
+ * more complicated.
+ */
+ if (!monitors || !skb)
+ goto out;
- old = local->rate_ctrl;
- local->rate_ctrl = ref;
- if (old) {
- rate_control_put(old);
- sta_info_flush(local, NULL);
+ if (sdata->type == IEEE80211_IF_TYPE_MNTR) {
+ if (!netif_running(sdata->dev))
+ continue;
+ monitors--;
+ if (monitors)
+ skb2 = skb_clone(skb, GFP_ATOMIC);
+ else
+ skb2 = NULL;
+ skb->dev = sdata->dev;
+ /* XXX: is this sufficient for BPF? */
+ skb_set_mac_header(skb, 0);
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb->pkt_type = PACKET_OTHERHOST;
+ skb->protocol = htons(ETH_P_802_2);
+ memset(skb->cb, 0, sizeof(skb->cb));
+ netif_rx(skb);
+ skb = skb2;
+ }
}
-
- printk(KERN_DEBUG "%s: Selected rate control "
- "algorithm '%s'\n", local->mdev->name,
- ref->ops->name);
-
-
- return 0;
-}
-
-static void rate_control_deinitialize(struct ieee80211_local *local)
-{
- struct rate_control_ref *ref;
-
- ref = local->rate_ctrl;
- local->rate_ctrl = NULL;
- rate_control_put(ref);
+ out:
+ rcu_read_unlock();
+ if (skb)
+ dev_kfree_skb(skb);
}
+EXPORT_SYMBOL(ieee80211_tx_status);
struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
const struct ieee80211_ops *ops)
((sizeof(struct ieee80211_local) +
NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);
+ BUG_ON(!ops->tx);
+ BUG_ON(!ops->start);
+ BUG_ON(!ops->stop);
+ BUG_ON(!ops->config);
+ BUG_ON(!ops->add_interface);
+ BUG_ON(!ops->remove_interface);
+ BUG_ON(!ops->configure_filter);
local->ops = ops;
/* for now, mdev needs sub_if_data :/ */
local->short_retry_limit = 7;
local->long_retry_limit = 4;
local->hw.conf.radio_enabled = 1;
- local->rate_ctrl_num_up = RATE_CONTROL_NUM_UP;
- local->rate_ctrl_num_down = RATE_CONTROL_NUM_DOWN;
- local->enabled_modes = (unsigned int) -1;
+ local->enabled_modes = ~0;
INIT_LIST_HEAD(&local->modes_list);
- rwlock_init(&local->sub_if_lock);
- INIT_LIST_HEAD(&local->sub_if_list);
+ INIT_LIST_HEAD(&local->interfaces);
INIT_DELAYED_WORK(&local->scan_work, ieee80211_sta_scan_work);
- init_timer(&local->stat_timer);
- local->stat_timer.function = ieee80211_stat_refresh;
- local->stat_timer.data = (unsigned long) local;
ieee80211_rx_bss_list_init(mdev);
sta_info_init(local);
mdev->stop = ieee80211_master_stop;
mdev->type = ARPHRD_IEEE80211;
mdev->hard_header_parse = header_parse_80211;
+ mdev->set_multicast_list = ieee80211_master_set_multicast_list;
sdata->type = IEEE80211_IF_TYPE_AP;
sdata->dev = mdev;
sdata->u.ap.force_unicast_rateidx = -1;
sdata->u.ap.max_ratectrl_rateidx = -1;
ieee80211_if_sdata_init(sdata);
- list_add_tail(&sdata->list, &local->sub_if_list);
+ /* no RCU needed since we're still during init phase */
+ list_add_tail(&sdata->list, &local->interfaces);
tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
(unsigned long)local);
goto fail_workqueue;
}
+ /*
+ * The hardware needs headroom for sending the frame,
+ * and we need some headroom for passing the frame to monitor
+ * interfaces, but never both at the same time.
+ */
+ local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom,
+ sizeof(struct ieee80211_tx_status_rtap_hdr));
+
debugfs_hw_add(local);
local->hw.conf.beacon_int = 1000;
goto fail_dev;
ieee80211_debugfs_add_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
+ ieee80211_if_set_type(local->mdev, IEEE80211_IF_TYPE_AP);
result = ieee80211_init_rate_ctrl_alg(local, NULL);
if (result < 0) {
printk(KERN_DEBUG "%s: Failed to initialize rate control "
- "algorithm\n", local->mdev->name);
+ "algorithm\n", wiphy_name(local->hw.wiphy));
goto fail_rate;
}
if (result < 0) {
printk(KERN_DEBUG "%s: Failed to initialize wep\n",
- local->mdev->name);
+ wiphy_name(local->hw.wiphy));
goto fail_wep;
}
IEEE80211_IF_TYPE_STA);
if (result)
printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
- local->mdev->name);
+ wiphy_name(local->hw.wiphy));
local->reg_state = IEEE80211_DEV_REGISTERED;
rtnl_unlock();
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_sub_if_data *sdata, *tmp;
- struct list_head tmp_list;
int i;
tasklet_kill(&local->tx_pending_tasklet);
BUG_ON(local->reg_state != IEEE80211_DEV_REGISTERED);
local->reg_state = IEEE80211_DEV_UNREGISTERED;
- if (local->apdev)
- ieee80211_if_del_mgmt(local);
- write_lock_bh(&local->sub_if_lock);
- list_replace_init(&local->sub_if_list, &tmp_list);
- write_unlock_bh(&local->sub_if_lock);
+ /*
+ * At this point, interface list manipulations are fine
+ * because the driver cannot be handing us frames any
+ * more and the tasklet is killed.
+ */
- list_for_each_entry_safe(sdata, tmp, &tmp_list, list)
+ /*
+ * First, we remove all non-master interfaces. Do this because they
+ * may have bss pointer dependency on the master, and when we free
+ * the master these would be freed as well, breaking our list
+ * iteration completely.
+ */
+ list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
+ if (sdata->dev == local->mdev)
+ continue;
+ list_del(&sdata->list);
__ieee80211_if_del(local, sdata);
+ }
- rtnl_unlock();
+ /* then, finally, remove the master interface */
+ __ieee80211_if_del(local, IEEE80211_DEV_TO_SUB_IF(local->mdev));
- if (local->stat_time)
- del_timer_sync(&local->stat_timer);
+ rtnl_unlock();
ieee80211_rx_bss_list_deinit(local->mdev);
ieee80211_clear_tx_pending(local);
if (skb_queue_len(&local->skb_queue)
|| skb_queue_len(&local->skb_queue_unreliable))
printk(KERN_WARNING "%s: skb_queue not empty\n",
- local->mdev->name);
+ wiphy_name(local->hw.wiphy));
skb_queue_purge(&local->skb_queue);
skb_queue_purge(&local->skb_queue_unreliable);
}
EXPORT_SYMBOL(ieee80211_free_hw);
-void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- if (test_and_clear_bit(IEEE80211_LINK_STATE_XOFF,
- &local->state[queue])) {
- if (test_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[queue]))
- tasklet_schedule(&local->tx_pending_tasklet);
- else
- if (!ieee80211_qdisc_installed(local->mdev)) {
- if (queue == 0)
- netif_wake_queue(local->mdev);
- } else
- __netif_schedule(local->mdev);
- }
-}
-EXPORT_SYMBOL(ieee80211_wake_queue);
-
-void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- if (!ieee80211_qdisc_installed(local->mdev) && queue == 0)
- netif_stop_queue(local->mdev);
- set_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]);
-}
-EXPORT_SYMBOL(ieee80211_stop_queue);
-
-void ieee80211_start_queues(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- int i;
-
- for (i = 0; i < local->hw.queues; i++)
- clear_bit(IEEE80211_LINK_STATE_XOFF, &local->state[i]);
- if (!ieee80211_qdisc_installed(local->mdev))
- netif_start_queue(local->mdev);
-}
-EXPORT_SYMBOL(ieee80211_start_queues);
-
-void ieee80211_stop_queues(struct ieee80211_hw *hw)
-{
- int i;
-
- for (i = 0; i < hw->queues; i++)
- ieee80211_stop_queue(hw, i);
-}
-EXPORT_SYMBOL(ieee80211_stop_queues);
-
-void ieee80211_wake_queues(struct ieee80211_hw *hw)
-{
- int i;
-
- for (i = 0; i < hw->queues; i++)
- ieee80211_wake_queue(hw, i);
-}
-EXPORT_SYMBOL(ieee80211_wake_queues);
-
-struct net_device_stats *ieee80211_dev_stats(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- return &sdata->stats;
-}
-
static int __init ieee80211_init(void)
{
struct sk_buff *skb;
return 0;
}
-
static void __exit ieee80211_exit(void)
{
ieee80211_wme_unregister();
}
-module_init(ieee80211_init);
+subsys_initcall(ieee80211_init);
module_exit(ieee80211_exit);
MODULE_DESCRIPTION("IEEE 802.11 subsystem");
+++ /dev/null
-/*
- * mac80211 configuration hooks for cfg80211
- *
- * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
- *
- * This file is GPLv2 as found in COPYING.
- */
-
-#include <linux/nl80211.h>
-#include <linux/rtnetlink.h>
-#include <net/cfg80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_cfg.h"
-
-static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
- enum nl80211_iftype type)
-{
- struct ieee80211_local *local = wiphy_priv(wiphy);
- int itype;
-
- if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
- return -ENODEV;
-
- switch (type) {
- case NL80211_IFTYPE_UNSPECIFIED:
- itype = IEEE80211_IF_TYPE_STA;
- break;
- case NL80211_IFTYPE_ADHOC:
- itype = IEEE80211_IF_TYPE_IBSS;
- break;
- case NL80211_IFTYPE_STATION:
- itype = IEEE80211_IF_TYPE_STA;
- break;
- case NL80211_IFTYPE_AP:
- itype = IEEE80211_IF_TYPE_AP;
- break;
- case NL80211_IFTYPE_WDS:
- itype = IEEE80211_IF_TYPE_WDS;
- break;
- case NL80211_IFTYPE_MONITOR:
- itype = IEEE80211_IF_TYPE_MNTR;
- break;
- default:
- return -EINVAL;
- }
-
- return ieee80211_if_add(local->mdev, name, NULL, itype);
-}
-
-static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
-{
- struct ieee80211_local *local = wiphy_priv(wiphy);
- struct net_device *dev;
- char *name;
-
- if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
- return -ENODEV;
-
- dev = dev_get_by_index(ifindex);
- if (!dev)
- return 0;
-
- name = dev->name;
- dev_put(dev);
-
- return ieee80211_if_remove(local->mdev, name, -1);
-}
-
-struct cfg80211_ops mac80211_config_ops = {
- .add_virtual_intf = ieee80211_add_iface,
- .del_virtual_intf = ieee80211_del_iface,
-};
+++ /dev/null
-/*
- * mac80211 configuration hooks for cfg80211
- */
-#ifndef __IEEE80211_CFG_H
-#define __IEEE80211_CFG_H
-
-extern struct cfg80211_ops mac80211_config_ops;
-
-#endif /* __IEEE80211_CFG_H */
ieee80211_msg_normal = 0,
ieee80211_msg_tx_callback_ack = 1,
ieee80211_msg_tx_callback_fail = 2,
- ieee80211_msg_passive_scan = 3,
- ieee80211_msg_wep_frame_unknown_key = 4,
+ /* hole at 3, was ieee80211_msg_passive_scan but unused */
+ /* hole at 4, was ieee80211_msg_wep_frame_unknown_key but now unused */
ieee80211_msg_michael_mic_failure = 5,
/* hole at 6, was monitor but never sent to userspace */
ieee80211_msg_sta_not_assoc = 7,
- ieee80211_msg_set_aid_for_sta = 8 /* used by Intersil MVC driver */,
- ieee80211_msg_key_threshold_notification = 9,
- ieee80211_msg_radar = 11,
-};
-
-struct ieee80211_msg_set_aid_for_sta {
- char sta_address[ETH_ALEN];
- u16 aid;
+ /* 8 was ieee80211_msg_set_aid_for_sta */
+ /* 9 was ieee80211_msg_key_threshold_notification */
+ /* 11 was ieee80211_msg_radar */
};
struct ieee80211_msg_key_notification {
ieee80211_phytype_ofdm_dot11_g = 6,
ieee80211_phytype_pbcc_dot11_g = 7,
ieee80211_phytype_ofdm_dot11_a = 8,
- ieee80211_phytype_dsss_dot11_turbog = 255,
- ieee80211_phytype_dsss_dot11_turbo = 256,
};
enum ieee80211_ssi_type {
#include <linux/workqueue.h>
#include <linux/types.h>
#include <linux/spinlock.h>
+#include <linux/etherdevice.h>
#include <net/wireless.h>
#include "ieee80211_key.h"
#include "sta_info.h"
* increased memory use (about 2 kB of RAM per entry). */
#define IEEE80211_FRAGMENT_MAX 4
-/* Minimum and Maximum TSID used by EDCA. EDCA uses 0~7; HCCA uses 8~15 */
-#define EDCA_TSID_MIN 0
-#define EDCA_TSID_MAX 7
-
struct ieee80211_fragment_entry {
unsigned long first_frag_time;
unsigned int seq;
size_t rsn_ie_len;
u8 *wmm_ie;
size_t wmm_ie_len;
- u8 *ht_ie;
- size_t ht_ie_len;
#define IEEE80211_MAX_SUPP_RATES 32
u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
size_t supp_rates_len;
int probe_resp;
unsigned long last_update;
+ /* during assocation, we save an ERP value from a probe response so
+ * that we can feed ERP info to the driver when handling the
+ * association completes. these fields probably won't be up-to-date
+ * otherwise, you probably don't want to use them. */
+ int has_erp_value;
+ u8 erp_value;
};
TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED
} ieee80211_txrx_result;
+/* flags used in struct ieee80211_txrx_data.flags */
+/* whether the MSDU was fragmented */
+#define IEEE80211_TXRXD_FRAGMENTED BIT(0)
+#define IEEE80211_TXRXD_TXUNICAST BIT(1)
+#define IEEE80211_TXRXD_TXPS_BUFFERED BIT(2)
+#define IEEE80211_TXRXD_TXPROBE_LAST_FRAG BIT(3)
+#define IEEE80211_TXRXD_RXIN_SCAN BIT(4)
+/* frame is destined to interface currently processed (incl. multicast frames) */
+#define IEEE80211_TXRXD_RXRA_MATCH BIT(5)
+#define IEEE80211_TXRXD_TX_INJECTED BIT(6)
struct ieee80211_txrx_data {
struct sk_buff *skb;
struct net_device *dev;
struct sta_info *sta;
u16 fc, ethertype;
struct ieee80211_key *key;
- unsigned int fragmented:1; /* whether the MSDU was fragmented */
+ unsigned int flags;
union {
struct {
struct ieee80211_tx_control *control;
- unsigned int unicast:1;
- unsigned int ps_buffered:1;
- unsigned int short_preamble:1;
- unsigned int probe_last_frag:1;
struct ieee80211_hw_mode *mode;
struct ieee80211_rate *rate;
/* use this rate (if set) for last fragment; rate can
* when using CTS protection with IEEE 802.11g. */
struct ieee80211_rate *last_frag_rate;
int last_frag_hwrate;
- int mgmt_interface;
/* Extra fragments (in addition to the first fragment
* in skb) */
int sent_ps_buffered;
int queue;
int load;
- u16 qos_control;
- unsigned int in_scan:1;
- /* frame is destined to interface currently processed
- * (including multicast frames) */
- unsigned int ra_match:1;
- unsigned int is_agg_frame:1;
+ u32 tkip_iv32;
+ u16 tkip_iv16;
} rx;
} u;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- int wpa_test;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
};
+/* flags used in struct ieee80211_tx_packet_data.flags */
+#define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
+#define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
+#define IEEE80211_TXPD_REQUEUE BIT(2)
/* Stored in sk_buff->cb */
struct ieee80211_tx_packet_data {
int ifindex;
unsigned long jiffies;
- unsigned int req_tx_status:1;
- unsigned int do_not_encrypt:1;
- unsigned int requeue:1;
- unsigned int mgmt_iface:1;
- unsigned int queue:4;
+ unsigned int flags;
+ u8 queue;
};
struct ieee80211_tx_stored_packet {
int last_frag_rateidx;
int last_frag_hwrate;
struct ieee80211_rate *last_frag_rate;
- unsigned int last_frag_rate_ctrl_probe:1;
-};
-
-struct sta_ts_data {
- enum {
- TS_STATUS_UNUSED = 0,
- TS_STATUS_ACTIVE = 1,
- TS_STATUS_INACTIVE = 2,
- TS_STATUS_THROTTLING = 3,
- } status;
- u8 dialog_token;
- u8 up;
- u32 admitted_time_usec;
- u32 used_time_usec;
+ unsigned int last_frag_rate_ctrl_probe;
};
typedef ieee80211_txrx_result (*ieee80211_tx_handler)
u8 *beacon_head, *beacon_tail;
int beacon_head_len, beacon_tail_len;
+ struct list_head vlans;
+
u8 ssid[IEEE80211_MAX_SSID_LEN];
size_t ssid_len;
- u8 *generic_elem;
- size_t generic_elem_len;
/* yes, this looks ugly, but guarantees that we can later use
* bitmap_empty :)
};
struct ieee80211_if_vlan {
- u8 id;
+ struct ieee80211_sub_if_data *ap;
+ struct list_head list;
};
+/* flags used in struct ieee80211_if_sta.flags */
+#define IEEE80211_STA_SSID_SET BIT(0)
+#define IEEE80211_STA_BSSID_SET BIT(1)
+#define IEEE80211_STA_PREV_BSSID_SET BIT(2)
+#define IEEE80211_STA_AUTHENTICATED BIT(3)
+#define IEEE80211_STA_ASSOCIATED BIT(4)
+#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
+#define IEEE80211_STA_CREATE_IBSS BIT(6)
+#define IEEE80211_STA_MIXED_CELL BIT(7)
+#define IEEE80211_STA_WMM_ENABLED BIT(8)
+#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
+#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
+#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
struct ieee80211_if_sta {
enum {
IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
} state;
struct timer_list timer;
struct work_struct work;
- struct timer_list admit_timer; /* Recompute EDCA admitted time */
u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
u8 ssid[IEEE80211_MAX_SSID_LEN];
size_t ssid_len;
int auth_tries, assoc_tries;
- unsigned int ssid_set:1;
- unsigned int bssid_set:1;
- unsigned int prev_bssid_set:1;
- unsigned int authenticated:1;
- unsigned int associated:1;
- unsigned int probereq_poll:1;
- unsigned int use_protection:1;
- unsigned int create_ibss:1;
- unsigned int mixed_cell:1;
- unsigned int wmm_enabled:1;
- unsigned int ht_enabled:1;
- unsigned int auto_ssid_sel:1;
- unsigned int auto_bssid_sel:1;
- unsigned int auto_channel_sel:1;
+ unsigned int flags;
#define IEEE80211_STA_REQ_SCAN 0
#define IEEE80211_STA_REQ_AUTH 1
#define IEEE80211_STA_REQ_RUN 2
unsigned long request;
struct sk_buff_head skb_queue;
- int key_mgmt;
+ int key_management_enabled;
unsigned long last_probe;
#define IEEE80211_AUTH_ALG_OPEN BIT(0)
u32 supp_rates_bits;
int wmm_last_param_set;
-
- u32 dot11EDCAAveragingPeriod;
- u32 MPDUExchangeTime;
-#define STA_TSID_NUM 16
-#define STA_TSDIR_NUM 2
- /* EDCA: 0~7, HCCA: 8~15 */
- struct sta_ts_data ts_data[STA_TSID_NUM][STA_TSDIR_NUM];
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct ieee80211_elem_tspec tspec;
- u8 dls_mac[ETH_ALEN];
-#endif
};
+/* flags used in struct ieee80211_sub_if_data.flags */
+#define IEEE80211_SDATA_ALLMULTI BIT(0)
+#define IEEE80211_SDATA_PROMISC BIT(1)
+#define IEEE80211_SDATA_USE_PROTECTION BIT(2) /* CTS protect ERP frames */
+/* use short preamble with IEEE 802.11b: this flag is set when the AP or beacon
+ * generator reports that there are no present stations that cannot support short
+ * preambles */
+#define IEEE80211_SDATA_SHORT_PREAMBLE BIT(3)
+#define IEEE80211_SDATA_USERSPACE_MLME BIT(4)
struct ieee80211_sub_if_data {
struct list_head list;
- unsigned int type;
+ enum ieee80211_if_types type;
struct wireless_dev wdev;
+ /* keys */
+ struct list_head key_list;
+
struct net_device *dev;
struct ieee80211_local *local;
- int mc_count;
- unsigned int allmulti:1;
- unsigned int promisc:1;
+ unsigned int flags;
- struct net_device_stats stats;
int drop_unencrypted;
int eapol; /* 0 = process EAPOL frames as normal data frames,
* 1 = send EAPOL frames through wlan#ap to hostapd
struct dentry *auth_alg;
struct dentry *auth_transaction;
struct dentry *flags;
- struct dentry *qos_dir;
- struct {
- struct dentry *addts_11e;
- struct dentry *addts_wmm;
- struct dentry *delts_11e;
- struct dentry *delts_wmm;
- struct dentry *dls_mac;
- struct dentry *dls_op;
- } qos;
- struct dentry *tsinfo_dir;
- struct {
- struct dentry *tsid;
- struct dentry *direction;
- struct dentry *up;
- } tsinfo;
- struct dentry *tspec_dir;
- struct {
- struct dentry *nominal_msdu_size;
- struct dentry *max_msdu_size;
- struct dentry *min_service_interval;
- struct dentry *max_service_interval;
- struct dentry *inactivity_interval;
- struct dentry *suspension_interval;
- struct dentry *service_start_time;
- struct dentry *min_data_rate;
- struct dentry *mean_data_rate;
- struct dentry *peak_data_rate;
- struct dentry *burst_size;
- struct dentry *delay_bound;
- struct dentry *min_phy_rate;
- struct dentry *surplus_band_allow;
- struct dentry *medium_time;
- } tspec;
} sta;
struct {
struct dentry *channel_use;
struct dentry *drop_unencrypted;
struct dentry *eapol;
struct dentry *ieee8021_x;
- struct dentry *vlan_id;
} vlan;
struct {
struct dentry *mode;
struct list_head modes_list;
struct net_device *mdev; /* wmaster# - "master" 802.11 device */
- struct net_device *apdev; /* wlan#ap - management frames (hostapd) */
int open_count;
int monitors;
+ unsigned int filter_flags; /* FIF_* */
struct iw_statistics wstats;
u8 wstats_flags;
+ int tx_headroom; /* required headroom for hardware/radiotap */
enum {
IEEE80211_DEV_UNINITIALIZED = 0,
struct sk_buff_head skb_queue_unreliable;
/* Station data structures */
- spinlock_t sta_lock; /* mutex for STA data structures */
+ rwlock_t sta_lock; /* protects STA data structures */
int num_sta; /* number of stations in sta_list */
struct list_head sta_list;
- struct list_head deleted_sta_list;
struct sta_info *sta_hash[STA_HASH_SIZE];
struct timer_list sta_cleanup;
struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
struct tasklet_struct tx_pending_tasklet;
- int mc_count; /* total count of multicast entries in all interfaces */
- int iff_allmultis, iff_promiscs;
- /* number of interfaces with corresponding IFF_ flags */
+ /* number of interfaces with corresponding IFF_ flags */
+ atomic_t iff_allmultis, iff_promiscs;
struct rate_control_ref *rate_ctrl;
- int next_mode; /* MODE_IEEE80211*
- * The mode preference for next channel change. This is
- * used to select .11g vs. .11b channels (or 4.9 GHz vs.
- * .11a) when the channel number is not unique. */
-
/* Supported and basic rate filters for different modes. These are
* pointers to -1 terminated lists and rates in 100 kbps units. */
int *supp_rates[NUM_IEEE80211_MODES];
int *basic_rates[NUM_IEEE80211_MODES];
int rts_threshold;
- int cts_protect_erp_frames;
int fragmentation_threshold;
int short_retry_limit; /* dot11ShortRetryLimit */
int long_retry_limit; /* dot11LongRetryLimit */
- int short_preamble; /* use short preamble with IEEE 802.11b */
struct crypto_blkcipher *wep_tx_tfm;
struct crypto_blkcipher *wep_rx_tfm;
u32 wep_iv;
- int key_tx_rx_threshold; /* number of times any key can be used in TX
- * or RX before generating a rekey
- * notification; 0 = notification disabled. */
int bridge_packets; /* bridge packets between associated stations and
* deliver multicast frames both back to wireless
ieee80211_rx_handler *rx_handlers;
ieee80211_tx_handler *tx_handlers;
- rwlock_t sub_if_lock; /* Protects sub_if_list. Cannot be taken under
- * sta_bss_lock or sta_lock. */
- struct list_head sub_if_list;
+ struct list_head interfaces;
+
int sta_scanning;
int scan_channel_idx;
enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
#define IEEE80211_SCAN_EXTRA_INFO BIT(2)
int scan_flags;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- u32 wpa_trigger;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
/* SNMP counters */
/* dot11CountersTable */
u32 dot11TransmittedFragmentCount;
#ifdef CONFIG_MAC80211_LEDS
int tx_led_counter, rx_led_counter;
- struct led_trigger *tx_led, *rx_led;
- char tx_led_name[32], rx_led_name[32];
+ struct led_trigger *tx_led, *rx_led, *assoc_led;
+ char tx_led_name[32], rx_led_name[32], assoc_led_name[32];
#endif
u32 channel_use;
u32 channel_use_raw;
- u32 stat_time;
- struct timer_list stat_timer;
#ifdef CONFIG_MAC80211_DEBUGFS
struct work_struct sta_debugfs_add;
#endif
- enum {
- STA_ANTENNA_SEL_AUTO = 0,
- STA_ANTENNA_SEL_SW_CTRL = 1,
- STA_ANTENNA_SEL_SW_CTRL_DEBUG = 2
- } sta_antenna_sel;
-
- int rate_ctrl_num_up, rate_ctrl_num_down;
-
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
/* TX/RX handler statistics */
unsigned int tx_handlers_drop;
#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
- int default_wep_only; /* only default WEP keys are used with this
- * interface; this is used to decide when hwaccel
- * can be used with default keys */
int total_ps_buffered; /* total number of all buffered unicast and
* multicast packets for power saving stations
*/
- int allow_broadcast_always; /* whether to allow TX of broadcast frames
- * even when there are no associated STAs
- */
-
int wifi_wme_noack_test;
unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
unsigned int hw_modes; /* bitfield of supported hardware modes;
* (1 << MODE_*) */
- int user_space_mlme;
-
#ifdef CONFIG_MAC80211_DEBUGFS
struct local_debugfsdentries {
struct dentry *channel;
struct dentry *frequency;
- struct dentry *radar_detect;
struct dentry *antenna_sel_tx;
struct dentry *antenna_sel_rx;
struct dentry *bridge_packets;
- struct dentry *key_tx_rx_threshold;
struct dentry *rts_threshold;
struct dentry *fragmentation_threshold;
struct dentry *short_retry_limit;
struct dentry *total_ps_buffered;
struct dentry *mode;
struct dentry *wep_iv;
- struct dentry *rate_ctrl_alg;
- struct dentry *tx_power_reduction;
struct dentry *modes;
struct dentry *statistics;
struct local_debugfsdentries_statsdentries {
#endif
};
-enum sta_link_direction {
- STA_TS_UPLINK = 0,
- STA_TS_DOWNLINK = 1,
-};
-
static inline struct ieee80211_local *hw_to_local(
struct ieee80211_hw *hw)
{
ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
};
-static inline void __bss_tim_set(struct ieee80211_if_ap *bss, int aid)
+static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
{
/*
- * This format has ben mandated by the IEEE specifications,
+ * This format has been mandated by the IEEE specifications,
* so this line may not be changed to use the __set_bit() format.
*/
- bss->tim[(aid)/8] |= 1<<((aid) % 8);
+ bss->tim[aid / 8] |= (1 << (aid % 8));
}
static inline void bss_tim_set(struct ieee80211_local *local,
- struct ieee80211_if_ap *bss, int aid)
+ struct ieee80211_if_ap *bss, u16 aid)
{
- spin_lock_bh(&local->sta_lock);
+ read_lock_bh(&local->sta_lock);
__bss_tim_set(bss, aid);
- spin_unlock_bh(&local->sta_lock);
+ read_unlock_bh(&local->sta_lock);
}
-static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, int aid)
+static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
{
/*
- * This format has ben mandated by the IEEE specifications,
+ * This format has been mandated by the IEEE specifications,
* so this line may not be changed to use the __clear_bit() format.
*/
- bss->tim[(aid)/8] &= !(1<<((aid) % 8));
+ bss->tim[aid / 8] &= ~(1 << (aid % 8));
}
static inline void bss_tim_clear(struct ieee80211_local *local,
- struct ieee80211_if_ap *bss, int aid)
+ struct ieee80211_if_ap *bss, u16 aid)
{
- spin_lock_bh(&local->sta_lock);
+ read_lock_bh(&local->sta_lock);
__bss_tim_clear(bss, aid);
- spin_unlock_bh(&local->sta_lock);
+ read_unlock_bh(&local->sta_lock);
}
/**
return 0;
}
+static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
+{
+ return compare_ether_addr(raddr, addr) == 0 ||
+ is_broadcast_ether_addr(raddr);
+}
+
+
/* ieee80211.c */
int ieee80211_hw_config(struct ieee80211_local *local);
int ieee80211_if_config(struct net_device *dev);
int ieee80211_if_config_beacon(struct net_device *dev);
-struct ieee80211_key_conf *
-ieee80211_key_data2conf(struct ieee80211_local *local,
- const struct ieee80211_key *data);
-struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
- int idx, size_t key_len, gfp_t flags);
-void ieee80211_key_free(struct ieee80211_key *key);
-void ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_rx_status *status, u32 msg_type);
void ieee80211_prepare_rates(struct ieee80211_local *local,
struct ieee80211_hw_mode *mode);
void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
void ieee80211_if_setup(struct net_device *dev);
-void ieee80211_if_mgmt_setup(struct net_device *dev);
-int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
- const char *name);
-struct net_device_stats *ieee80211_dev_stats(struct net_device *dev);
+struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
+ int phymode, int hwrate);
/* ieee80211_ioctl.c */
-int ieee80211_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
extern const struct iw_handler_def ieee80211_iw_handler_def;
-/* Set hw encryption from ieee80211 */
-int ieee80211_set_hw_encryption(struct net_device *dev,
- struct sta_info *sta, u8 addr[ETH_ALEN],
- struct ieee80211_key *key);
-void ieee80211_update_default_wep_only(struct ieee80211_local *local);
-
/* Least common multiple of the used rates (in 100 kbps). This is used to
* calculate rate_inv values for each rate so that only integers are needed. */
/* ieee80211_sta.c */
void ieee80211_sta_timer(unsigned long data);
void ieee80211_sta_work(struct work_struct *work);
-void ieee80211_admit_refresh(unsigned long ptr);
void ieee80211_sta_scan_work(struct work_struct *work);
void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
struct ieee80211_rx_status *rx_status);
u8 *addr);
int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
-void ieee80211_send_addts(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_elem_tspec *tspec);
-void wmm_send_addts(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_elem_tspec *tspec);
-void ieee80211_send_delts(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_elem_tspec *tp);
-void wmm_send_delts(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_elem_tspec *tp);
-void ieee80211_send_dls_req(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- u8 *addr, u16 timeout);
-void ieee80211_send_dls_teardown(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- u8 *mac, u16 reason);
-struct sta_info *dls_info_get(struct ieee80211_local *local, u8 *addr);
-void dls_info_add(struct ieee80211_if_sta *ifsta, struct sta_info *dls);
-void dls_info_stop(struct ieee80211_if_sta *ifsta);
-int dls_link_status(struct ieee80211_local *local, u8 *addr);
+void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes);
+void ieee80211_reset_erp_info(struct net_device *dev);
/* ieee80211_iface.c */
int ieee80211_if_add(struct net_device *dev, const char *name,
int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
void ieee80211_if_free(struct net_device *dev);
void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
-int ieee80211_if_add_mgmt(struct ieee80211_local *local);
-void ieee80211_if_del_mgmt(struct ieee80211_local *local);
/* regdomain.c */
void ieee80211_regdomain_init(void);
void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode);
-/* for wiphy privid */
-extern void *mac80211_wiphy_privid;
+/* rx handling */
+extern ieee80211_rx_handler ieee80211_rx_pre_handlers[];
+extern ieee80211_rx_handler ieee80211_rx_handlers[];
+
+/* tx handling */
+extern ieee80211_tx_handler ieee80211_tx_handlers[];
+void ieee80211_clear_tx_pending(struct ieee80211_local *local);
+void ieee80211_tx_pending(unsigned long data);
+int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
+int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
+int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
+
+/* utility functions/constants */
+extern void *mac80211_wiphy_privid; /* for wiphy privid */
+extern const unsigned char rfc1042_header[6];
+extern const unsigned char bridge_tunnel_header[6];
+u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len);
+int ieee80211_is_eapol(const struct sk_buff *skb);
+int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
+ int rate, int erp, int short_preamble);
+void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
+ struct ieee80211_hdr *hdr);
#endif /* IEEE80211_I_H */
sdata->eapol = 1;
for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
skb_queue_head_init(&sdata->fragments[i].skb_list);
+
+ INIT_LIST_HEAD(&sdata->key_list);
}
static void ieee80211_if_sdata_deinit(struct ieee80211_sub_if_data *sdata)
ieee80211_debugfs_add_netdev(sdata);
ieee80211_if_set_type(ndev, type);
- write_lock_bh(&local->sub_if_lock);
+ /* we're under RTNL so all this is fine */
if (unlikely(local->reg_state == IEEE80211_DEV_UNREGISTERED)) {
- write_unlock_bh(&local->sub_if_lock);
__ieee80211_if_del(local, sdata);
return -ENODEV;
}
- list_add(&sdata->list, &local->sub_if_list);
+ list_add_tail_rcu(&sdata->list, &local->interfaces);
+
if (new_dev)
*new_dev = ndev;
- write_unlock_bh(&local->sub_if_lock);
-
- ieee80211_update_default_wep_only(local);
return 0;
return ret;
}
-int ieee80211_if_add_mgmt(struct ieee80211_local *local)
-{
- struct net_device *ndev;
- struct ieee80211_sub_if_data *nsdata;
- int ret;
-
- ASSERT_RTNL();
-
- ndev = alloc_netdev(sizeof(struct ieee80211_sub_if_data), "wmgmt%d",
- ieee80211_if_mgmt_setup);
- if (!ndev)
- return -ENOMEM;
- ret = dev_alloc_name(ndev, ndev->name);
- if (ret < 0)
- goto fail;
-
- memcpy(ndev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
- SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy));
-
- nsdata = IEEE80211_DEV_TO_SUB_IF(ndev);
- ndev->ieee80211_ptr = &nsdata->wdev;
- nsdata->wdev.wiphy = local->hw.wiphy;
- nsdata->type = IEEE80211_IF_TYPE_MGMT;
- nsdata->dev = ndev;
- nsdata->local = local;
- ieee80211_if_sdata_init(nsdata);
-
- ret = register_netdevice(ndev);
- if (ret)
- goto fail;
-
- ieee80211_debugfs_add_netdev(nsdata);
-
- if (local->open_count > 0)
- dev_open(ndev);
- local->apdev = ndev;
- return 0;
-
-fail:
- free_netdev(ndev);
- return ret;
-}
-
-void ieee80211_if_del_mgmt(struct ieee80211_local *local)
-{
- struct net_device *apdev;
-
- ASSERT_RTNL();
- apdev = local->apdev;
- ieee80211_debugfs_remove_netdev(IEEE80211_DEV_TO_SUB_IF(apdev));
- local->apdev = NULL;
- unregister_netdevice(apdev);
-}
-
void ieee80211_if_set_type(struct net_device *dev, int type)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
int oldtype = sdata->type;
+ /*
+ * We need to call this function on the master interface
+ * which already has a hard_start_xmit routine assigned
+ * which must not be changed.
+ */
+ if (dev != sdata->local->mdev)
+ dev->hard_start_xmit = ieee80211_subif_start_xmit;
+
+ /*
+ * Called even when register_netdevice fails, it would
+ * oops if assigned before initialising the rest.
+ */
+ dev->uninit = ieee80211_if_reinit;
+
+ /* most have no BSS pointer */
+ sdata->bss = NULL;
sdata->type = type;
+
switch (type) {
case IEEE80211_IF_TYPE_WDS:
- sdata->bss = NULL;
+ /* nothing special */
break;
case IEEE80211_IF_TYPE_VLAN:
+ sdata->u.vlan.ap = NULL;
break;
case IEEE80211_IF_TYPE_AP:
sdata->u.ap.dtim_period = 2;
sdata->u.ap.max_ratectrl_rateidx = -1;
skb_queue_head_init(&sdata->u.ap.ps_bc_buf);
sdata->bss = &sdata->u.ap;
+ INIT_LIST_HEAD(&sdata->u.ap.vlans);
break;
case IEEE80211_IF_TYPE_STA:
case IEEE80211_IF_TYPE_IBSS: {
(unsigned long) sdata);
skb_queue_head_init(&ifsta->skb_queue);
- init_timer(&ifsta->admit_timer);
- ifsta->admit_timer.data = (unsigned long) dev;
- ifsta->admit_timer.function = ieee80211_admit_refresh;
-
ifsta->capab = WLAN_CAPABILITY_ESS;
ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN |
IEEE80211_AUTH_ALG_SHARED_KEY;
- ifsta->create_ibss = 1;
- ifsta->wmm_enabled = 1;
- ifsta->ht_enabled = 1;
- ifsta->auto_channel_sel = 1;
- ifsta->auto_bssid_sel = 1;
-
- /* Initialize non-AP QSTA QoS Params */
- ifsta->dot11EDCAAveragingPeriod = 5;
- ifsta->MPDUExchangeTime = 0;
-#ifdef CONFIG_MAC80211_DEBUGFS
- ifsta->tspec.nominal_msdu_size = cpu_to_le16(200),
- ifsta->tspec.inactivity_interval = cpu_to_le32(40),
- ifsta->tspec.mean_data_rate = cpu_to_le32(40000),
- ifsta->tspec.min_phy_rate = cpu_to_le32(6000000),
- ifsta->tspec.surplus_band_allow = cpu_to_le16(8192),
- ifsta->tspec.medium_time = cpu_to_le16(30),
-#endif
+ ifsta->flags |= IEEE80211_STA_CREATE_IBSS |
+ IEEE80211_STA_WMM_ENABLED |
+ IEEE80211_STA_AUTO_BSSID_SEL |
+ IEEE80211_STA_AUTO_CHANNEL_SEL;
msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev);
sdata->bss = &msdata->u.ap;
}
case IEEE80211_IF_TYPE_MNTR:
dev->type = ARPHRD_IEEE80211_RADIOTAP;
+ dev->hard_start_xmit = ieee80211_monitor_start_xmit;
break;
default:
printk(KERN_WARNING "%s: %s: Unknown interface type 0x%x",
dev->name, __FUNCTION__, type);
}
ieee80211_debugfs_change_if_type(sdata, oldtype);
- ieee80211_update_default_wep_only(local);
}
/* Must be called with rtnl lock held. */
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct sta_info *sta;
- int i;
+ struct sk_buff *skb;
ASSERT_RTNL();
+
+ ieee80211_free_keys(sdata);
+
ieee80211_if_sdata_deinit(sdata);
- for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
- if (!sdata->keys[i])
- continue;
-#if 0
- /* The interface is down at the moment, so there is not
- * really much point in disabling the keys at this point. */
- memset(addr, 0xff, ETH_ALEN);
- if (local->ops->set_key)
- local->ops->set_key(local_to_hw(local), DISABLE_KEY, addr,
- local->keys[i], 0);
-#endif
- ieee80211_key_free(sdata->keys[i]);
- sdata->keys[i] = NULL;
- }
switch (sdata->type) {
+ case IEEE80211_IF_TYPE_INVALID:
+ /* cannot happen */
+ WARN_ON(1);
+ break;
case IEEE80211_IF_TYPE_AP: {
/* Remove all virtual interfaces that use this BSS
* as their sdata->bss */
struct ieee80211_sub_if_data *tsdata, *n;
- LIST_HEAD(tmp_list);
- write_lock_bh(&local->sub_if_lock);
- list_for_each_entry_safe(tsdata, n, &local->sub_if_list, list) {
+ list_for_each_entry_safe(tsdata, n, &local->interfaces, list) {
if (tsdata != sdata && tsdata->bss == &sdata->u.ap) {
printk(KERN_DEBUG "%s: removing virtual "
"interface %s because its BSS interface"
" is being removed\n",
sdata->dev->name, tsdata->dev->name);
- list_move_tail(&tsdata->list, &tmp_list);
+ list_del_rcu(&tsdata->list);
+ /*
+ * We have lots of time and can afford
+ * to sync for each interface
+ */
+ synchronize_rcu();
+ __ieee80211_if_del(local, tsdata);
}
}
- write_unlock_bh(&local->sub_if_lock);
-
- list_for_each_entry_safe(tsdata, n, &tmp_list, list)
- __ieee80211_if_del(local, tsdata);
kfree(sdata->u.ap.beacon_head);
kfree(sdata->u.ap.beacon_tail);
- kfree(sdata->u.ap.generic_elem);
- if (dev != local->mdev) {
- struct sk_buff *skb;
- while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) {
- local->total_ps_buffered--;
- dev_kfree_skb(skb);
- }
+ while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) {
+ local->total_ps_buffered--;
+ dev_kfree_skb(skb);
}
break;
case IEEE80211_IF_TYPE_WDS:
sta = sta_info_get(local, sdata->u.wds.remote_addr);
if (sta) {
+ sta_info_free(sta);
sta_info_put(sta);
- sta_info_free(sta, 0);
} else {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: Someone had deleted my STA "
case IEEE80211_IF_TYPE_MNTR:
dev->type = ARPHRD_ETHER;
break;
+ case IEEE80211_IF_TYPE_VLAN:
+ sdata->u.vlan.ap = NULL;
+ break;
}
/* remove all STAs that are bound to this virtual interface */
ASSERT_RTNL();
- write_lock_bh(&local->sub_if_lock);
- list_for_each_entry_safe(sdata, n, &local->sub_if_list, list) {
+ list_for_each_entry_safe(sdata, n, &local->interfaces, list) {
if ((sdata->type == id || id == -1) &&
strcmp(name, sdata->dev->name) == 0 &&
sdata->dev != local->mdev) {
- list_del(&sdata->list);
- write_unlock_bh(&local->sub_if_lock);
+ list_del_rcu(&sdata->list);
+ synchronize_rcu();
__ieee80211_if_del(local, sdata);
- ieee80211_update_default_wep_only(local);
return 0;
}
}
- write_unlock_bh(&local->sub_if_lock);
return -ENODEV;
}
void ieee80211_if_free(struct net_device *dev)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- /* local->apdev must be NULL when freeing management interface */
- BUG_ON(dev == local->apdev);
ieee80211_if_sdata_deinit(sdata);
free_netdev(dev);
}
#include <net/mac80211.h>
#include "ieee80211_i.h"
-#include "hostapd_ioctl.h"
#include "ieee80211_rate.h"
#include "wpa.h"
#include "aes_ccm.h"
-#include "debugfs_key.h"
-static int ieee80211_ioctl_set_beacon(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len,
- int flag)
+static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
+ int idx, int alg, int remove,
+ int set_tx_key, const u8 *_key,
+ size_t key_len)
{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ int ret = 0;
+ struct sta_info *sta;
+ struct ieee80211_key *key;
struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_ap *ap;
- u8 **b_head, **b_tail;
- int *b_head_len, *b_tail_len;
- int len;
-
- len = ((char *) param->u.beacon.data - (char *) param) +
- param->u.beacon.head_len + param->u.beacon.tail_len;
-
- if (param_len > len)
- param_len = len;
- else if (param_len != len)
- return -EINVAL;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_AP)
- return -EINVAL;
- ap = &sdata->u.ap;
-
- switch (flag) {
- case 0:
- b_head = &ap->beacon_head;
- b_tail = &ap->beacon_tail;
- b_head_len = &ap->beacon_head_len;
- b_tail_len = &ap->beacon_tail_len;
- break;
- default:
- printk(KERN_DEBUG "%s: unknown beacon flag %d\n",
- dev->name, flag);
+
+ if (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
+ printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
+ dev->name, idx);
return -EINVAL;
}
- kfree(*b_head);
- kfree(*b_tail);
- *b_head = NULL;
- *b_tail = NULL;
+ if (is_broadcast_ether_addr(sta_addr)) {
+ sta = NULL;
+ key = sdata->keys[idx];
+ } else {
+ set_tx_key = 0;
+ /*
+ * According to the standard, the key index of a pairwise
+ * key must be zero. However, some AP are broken when it
+ * comes to WEP key indices, so we work around this.
+ */
+ if (idx != 0 && alg != ALG_WEP) {
+ printk(KERN_DEBUG "%s: set_encrypt - non-zero idx for "
+ "individual key\n", dev->name);
+ return -EINVAL;
+ }
+
+ sta = sta_info_get(local, sta_addr);
+ if (!sta) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: set_encrypt - unknown addr "
+ MAC_FMT "\n",
+ dev->name, MAC_ARG(sta_addr));
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- *b_head_len = param->u.beacon.head_len;
- *b_tail_len = param->u.beacon.tail_len;
+ return -ENOENT;
+ }
- *b_head = kmalloc(*b_head_len, GFP_KERNEL);
- if (*b_head)
- memcpy(*b_head, param->u.beacon.data, *b_head_len);
- else {
- printk(KERN_DEBUG "%s: failed to allocate beacon_head\n",
- dev->name);
- return -ENOMEM;
+ key = sta->key;
}
- if (*b_tail_len > 0) {
- *b_tail = kmalloc(*b_tail_len, GFP_KERNEL);
- if (*b_tail)
- memcpy(*b_tail, param->u.beacon.data + (*b_head_len),
- (*b_tail_len));
- else {
- printk(KERN_DEBUG "%s: failed to allocate "
- "beacon_tail\n", dev->name);
- return -ENOMEM;
+ if (remove) {
+ ieee80211_key_free(key);
+ key = NULL;
+ } else {
+ /*
+ * Automatically frees any old key if present.
+ */
+ key = ieee80211_key_alloc(sdata, sta, alg, idx, key_len, _key);
+ if (!key) {
+ ret = -ENOMEM;
+ goto err_out;
}
}
- return ieee80211_if_config_beacon(dev);
-}
+ if (set_tx_key || (!sta && !sdata->default_key && key))
+ ieee80211_set_default_key(sdata, idx);
+ ret = 0;
+ err_out:
+ if (sta)
+ sta_info_put(sta);
+ return ret;
+}
-static int ieee80211_ioctl_get_hw_features(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
+static int ieee80211_ioctl_siwgenie(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- u8 *pos = param->u.hw_features.data;
- int left = param_len - (pos - (u8 *) param);
- int i;
- struct hostapd_ioctl_hw_modes_hdr *hdr;
- struct ieee80211_rate_data *rate;
- struct ieee80211_channel_data *chan;
- struct ieee80211_hw_mode *mode;
+ struct ieee80211_sub_if_data *sdata;
- param->u.hw_features.flags = 0;
- if (local->hw.flags & IEEE80211_HW_DATA_NULLFUNC_ACK)
- param->u.hw_features.flags |= HOSTAP_HW_FLAG_NULLFUNC_OK;
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- param->u.hw_features.num_modes = 0;
- list_for_each_entry(mode, &local->modes_list, list) {
- int clen, rlen;
-
- param->u.hw_features.num_modes++;
- clen = mode->num_channels * sizeof(struct ieee80211_channel_data);
- rlen = mode->num_rates * sizeof(struct ieee80211_rate_data);
- if (left < sizeof(*hdr) + clen + rlen)
- return -E2BIG;
- left -= sizeof(*hdr) + clen + rlen;
-
- hdr = (struct hostapd_ioctl_hw_modes_hdr *) pos;
- hdr->mode = mode->mode;
- hdr->num_channels = mode->num_channels;
- hdr->num_rates = mode->num_rates;
-
- pos = (u8 *) (hdr + 1);
- chan = (struct ieee80211_channel_data *) pos;
- for (i = 0; i < mode->num_channels; i++) {
- chan[i].chan = mode->channels[i].chan;
- chan[i].freq = mode->channels[i].freq;
- chan[i].flag = mode->channels[i].flag;
- }
- pos += clen;
+ if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
+ return -EOPNOTSUPP;
- rate = (struct ieee80211_rate_data *) pos;
- for (i = 0; i < mode->num_rates; i++) {
- rate[i].rate = mode->rates[i].rate;
- rate[i].flags = mode->rates[i].flags;
- }
- pos += rlen;
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
+ if (ret)
+ return ret;
+ sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
+ ieee80211_sta_req_auth(dev, &sdata->u.sta);
+ return 0;
}
- return 0;
+ return -EOPNOTSUPP;
}
-static int ieee80211_ioctl_flush(struct net_device *dev,
- struct prism2_hostapd_param *param)
+static int ieee80211_ioctl_giwname(struct net_device *dev,
+ struct iw_request_info *info,
+ char *name, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- sta_info_flush(local, NULL);
- return 0;
-}
-
-/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
-struct iapp_layer2_update {
- u8 da[ETH_ALEN]; /* broadcast */
- u8 sa[ETH_ALEN]; /* STA addr */
- __be16 len; /* 6 */
- u8 dsap; /* 0 */
- u8 ssap; /* 0 */
- u8 control;
- u8 xid_info[3];
-} __attribute__ ((packed));
+ switch (local->hw.conf.phymode) {
+ case MODE_IEEE80211A:
+ strcpy(name, "IEEE 802.11a");
+ break;
+ case MODE_IEEE80211B:
+ strcpy(name, "IEEE 802.11b");
+ break;
+ case MODE_IEEE80211G:
+ strcpy(name, "IEEE 802.11g");
+ break;
+ default:
+ strcpy(name, "IEEE 802.11");
+ break;
+ }
-static void ieee80211_send_layer2_update(struct net_device *dev,
- const u8 *addr)
-{
- struct iapp_layer2_update *msg;
- struct sk_buff *skb;
-
- /* Send Level 2 Update Frame to update forwarding tables in layer 2
- * bridge devices */
-
- skb = dev_alloc_skb(sizeof(*msg));
- if (!skb)
- return;
- msg = (struct iapp_layer2_update *) skb_put(skb, sizeof(*msg));
-
- /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
- * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
-
- memset(msg->da, 0xff, ETH_ALEN);
- memcpy(msg->sa, addr, ETH_ALEN);
- msg->len = htons(6);
- msg->dsap = 0;
- msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
- msg->control = 0xaf; /* XID response lsb.1111F101.
- * F=0 (no poll command; unsolicited frame) */
- msg->xid_info[0] = 0x81; /* XID format identifier */
- msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
- msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
-
- skb->dev = dev;
- skb->protocol = eth_type_trans(skb, dev);
- memset(skb->cb, 0, sizeof(skb->cb));
- netif_rx(skb);
+ return 0;
}
-static int ieee80211_ioctl_add_sta(struct net_device *dev,
- struct prism2_hostapd_param *param)
+static int ieee80211_ioctl_giwrange(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- u32 rates;
- int i, j;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_hw_mode *mode;
- int add_key_entry = 1;
+ struct iw_range *range = (struct iw_range *) extra;
+ struct ieee80211_hw_mode *mode = NULL;
+ int c = 0;
- /* Prevent a race with changing the rate control algorithm */
- if (!netif_running(dev))
- return -ENETDOWN;
+ data->length = sizeof(struct iw_range);
+ memset(range, 0, sizeof(struct iw_range));
- sta = sta_info_get(local, param->sta_addr);
+ range->we_version_compiled = WIRELESS_EXT;
+ range->we_version_source = 21;
+ range->retry_capa = IW_RETRY_LIMIT;
+ range->retry_flags = IW_RETRY_LIMIT;
+ range->min_retry = 0;
+ range->max_retry = 255;
+ range->min_rts = 0;
+ range->max_rts = 2347;
+ range->min_frag = 256;
+ range->max_frag = 2346;
- if (!sta) {
- sta = sta_info_add(local, dev, param->sta_addr, GFP_KERNEL);
- if (!sta)
- return -ENOMEM;
- }
+ range->encoding_size[0] = 5;
+ range->encoding_size[1] = 13;
+ range->num_encoding_sizes = 2;
+ range->max_encoding_tokens = NUM_DEFAULT_KEYS;
- if (sta->dev != dev) {
- /* Binding STA to a new interface, so remove all references to
- * the old BSS. */
- spin_lock_bh(&local->sta_lock);
- sta_info_remove_aid_ptr(sta);
- spin_unlock_bh(&local->sta_lock);
- }
+ range->max_qual.qual = local->hw.max_signal;
+ range->max_qual.level = local->hw.max_rssi;
+ range->max_qual.noise = local->hw.max_noise;
+ range->max_qual.updated = local->wstats_flags;
- /* TODO
- * We "steal" the device in case someone owns it
- * This will hurt WDS links and such when we have a
- * WDS link and a client associating from the same station
- */
- sta->dev = dev;
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
-
- sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
- sta->aid = param->u.add_sta.aid;
- if (sta->aid > IEEE80211_MAX_AID)
- sta->aid = 0;
- sta->listen_interval = param->u.add_sta.listen_interval;
-
- rates = 0;
- mode = local->oper_hw_mode;
- for (i = 0; i < sizeof(param->u.add_sta.supp_rates); i++) {
- int rate = (param->u.add_sta.supp_rates[i] & 0x7f) * 5;
- if (mode->mode == MODE_ATHEROS_TURBO ||
- mode->mode == MODE_ATHEROS_TURBOG)
- rate *= 2;
- for (j = 0; j < mode->num_rates; j++) {
- if (mode->rates[j].rate == rate)
- rates |= BIT(j);
- }
+ range->avg_qual.qual = local->hw.max_signal/2;
+ range->avg_qual.level = 0;
+ range->avg_qual.noise = 0;
+ range->avg_qual.updated = local->wstats_flags;
- }
- sta->supp_rates = rates;
+ range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
+ IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
- rate_control_rate_init(sta, local);
+ list_for_each_entry(mode, &local->modes_list, list) {
+ int i = 0;
- if (param->u.add_sta.wds_flags & 0x01)
- sta->flags |= WLAN_STA_WDS;
- else
- sta->flags &= ~WLAN_STA_WDS;
-
- if (add_key_entry && !sta->key && !sdata->default_key &&
- local->ops->set_key) {
- struct ieee80211_key_conf conf;
- /* Add key cache entry with NULL key type because this may used
- * for TX filtering. */
- memset(&conf, 0, sizeof(conf));
- conf.hw_key_idx = HW_KEY_IDX_INVALID;
- conf.alg = ALG_NULL;
- conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT;
- if (local->ops->set_key(local_to_hw(local), SET_KEY,
- sta->addr, &conf, sta->aid)) {
- sta->key_idx_compression = HW_KEY_IDX_INVALID;
- } else {
- sta->key_idx_compression = conf.hw_key_idx;
+ if (!(local->enabled_modes & (1 << mode->mode)) ||
+ (local->hw_modes & local->enabled_modes &
+ (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
+ continue;
+
+ while (i < mode->num_channels && c < IW_MAX_FREQUENCIES) {
+ struct ieee80211_channel *chan = &mode->channels[i];
+
+ if (chan->flag & IEEE80211_CHAN_W_SCAN) {
+ range->freq[c].i = chan->chan;
+ range->freq[c].m = chan->freq * 100000;
+ range->freq[c].e = 1;
+ c++;
+ }
+ i++;
}
}
+ range->num_channels = c;
+ range->num_frequency = c;
- sta_info_put(sta);
-
- if (sdata->type == IEEE80211_IF_TYPE_AP ||
- sdata->type == IEEE80211_IF_TYPE_VLAN)
- ieee80211_send_layer2_update(dev, param->sta_addr);
+ IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
+ IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
+ IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
+ IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
return 0;
}
-static int ieee80211_ioctl_remove_sta(struct net_device *dev,
- struct prism2_hostapd_param *param)
+static int ieee80211_ioctl_siwmode(struct net_device *dev,
+ struct iw_request_info *info,
+ __u32 *mode, char *extra)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int type;
- sta = sta_info_get(local, param->sta_addr);
- if (sta) {
- sta_info_put(sta);
- sta_info_free(sta, 0);
- }
+ if (sdata->type == IEEE80211_IF_TYPE_VLAN)
+ return -EOPNOTSUPP;
- return sta ? 0 : -ENOENT;
-}
+ switch (*mode) {
+ case IW_MODE_INFRA:
+ type = IEEE80211_IF_TYPE_STA;
+ break;
+ case IW_MODE_ADHOC:
+ type = IEEE80211_IF_TYPE_IBSS;
+ break;
+ case IW_MODE_MONITOR:
+ type = IEEE80211_IF_TYPE_MNTR;
+ break;
+ default:
+ return -EINVAL;
+ }
+ if (type == sdata->type)
+ return 0;
+ if (netif_running(dev))
+ return -EBUSY;
-static int ieee80211_ioctl_get_dot11counterstable(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_low_level_stats stats;
-
- memset(&stats, 0, sizeof(stats));
- if (local->ops->get_stats)
- local->ops->get_stats(local_to_hw(local), &stats);
- param->u.dot11CountersTable.dot11TransmittedFragmentCount =
- local->dot11TransmittedFragmentCount;
- param->u.dot11CountersTable.dot11MulticastTransmittedFrameCount =
- local->dot11MulticastTransmittedFrameCount;
- param->u.dot11CountersTable.dot11ReceivedFragmentCount =
- local->dot11ReceivedFragmentCount;
- param->u.dot11CountersTable.dot11MulticastReceivedFrameCount =
- local->dot11MulticastReceivedFrameCount;
- param->u.dot11CountersTable.dot11TransmittedFrameCount =
- local->dot11TransmittedFrameCount;
- param->u.dot11CountersTable.dot11FCSErrorCount =
- stats.dot11FCSErrorCount;
- param->u.dot11CountersTable.dot11ACKFailureCount =
- stats.dot11ACKFailureCount;
- param->u.dot11CountersTable.dot11RTSFailureCount =
- stats.dot11RTSFailureCount;
- param->u.dot11CountersTable.dot11RTSSuccessCount =
- stats.dot11RTSSuccessCount;
+ ieee80211_if_reinit(dev);
+ ieee80211_if_set_type(dev, type);
return 0;
}
-static int ieee80211_ioctl_get_info_sta(struct net_device *dev,
- struct prism2_hostapd_param *param)
+static int ieee80211_ioctl_giwmode(struct net_device *dev,
+ struct iw_request_info *info,
+ __u32 *mode, char *extra)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw_mode *mode;
- struct sta_info *sta;
-
- if (is_broadcast_ether_addr(param->sta_addr)) {
- struct net_device_stats *stats;
+ struct ieee80211_sub_if_data *sdata;
- stats = ieee80211_dev_stats(local->mdev);
- param->u.get_info_sta.rx_bytes = stats->rx_bytes;
- param->u.get_info_sta.tx_bytes = stats->tx_bytes;
- /* go through all STAs and get STA with lowest max. rate */
- param->u.get_info_sta.current_tx_rate =
- sta_info_min_txrate_get(local);
- return 0;
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_AP:
+ *mode = IW_MODE_MASTER;
+ break;
+ case IEEE80211_IF_TYPE_STA:
+ *mode = IW_MODE_INFRA;
+ break;
+ case IEEE80211_IF_TYPE_IBSS:
+ *mode = IW_MODE_ADHOC;
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ *mode = IW_MODE_MONITOR;
+ break;
+ case IEEE80211_IF_TYPE_WDS:
+ *mode = IW_MODE_REPEAT;
+ break;
+ case IEEE80211_IF_TYPE_VLAN:
+ *mode = IW_MODE_SECOND; /* FIXME */
+ break;
+ default:
+ *mode = IW_MODE_AUTO;
+ break;
}
-
- sta = sta_info_get(local, param->sta_addr);
-
- if (!sta)
- return -ENOENT;
-
- param->u.get_info_sta.inactive_msec =
- jiffies_to_msecs(jiffies - sta->last_rx);
- param->u.get_info_sta.rx_packets = sta->rx_packets;
- param->u.get_info_sta.tx_packets = sta->tx_packets;
- param->u.get_info_sta.rx_bytes = sta->rx_bytes;
- param->u.get_info_sta.tx_bytes = sta->tx_bytes;
- param->u.get_info_sta.channel_use = sta->channel_use;
- param->u.get_info_sta.flags = sta->flags;
- mode = local->oper_hw_mode;
- if (sta->txrate >= 0 && sta->txrate < mode->num_rates)
- param->u.get_info_sta.current_tx_rate =
- mode->rates[sta->txrate].rate;
- param->u.get_info_sta.num_ps_buf_frames =
- skb_queue_len(&sta->ps_tx_buf);
- param->u.get_info_sta.tx_retry_failed = sta->tx_retry_failed;
- param->u.get_info_sta.tx_retry_count = sta->tx_retry_count;
- param->u.get_info_sta.last_rssi = sta->last_rssi;
- param->u.get_info_sta.last_ack_rssi = sta->last_ack_rssi[2];
-
- sta_info_put(sta);
-
return 0;
}
-
-static int ieee80211_ioctl_set_flags_sta(struct net_device *dev,
- struct prism2_hostapd_param *param)
+int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
+ struct ieee80211_hw_mode *mode;
+ int c, set = 0;
+ int ret = -EINVAL;
- sta = sta_info_get(local, param->sta_addr);
- if (sta) {
- sta->flags |= param->u.set_flags_sta.flags_or;
- sta->flags &= param->u.set_flags_sta.flags_and;
- if (local->ops->set_port_auth &&
- (param->u.set_flags_sta.flags_or & WLAN_STA_AUTHORIZED) &&
- local->ops->set_port_auth(local_to_hw(local), sta->addr, 1))
- printk(KERN_DEBUG "%s: failed to set low-level driver "
- "PAE state (authorized) for " MAC_FMT "\n",
- dev->name, MAC_ARG(sta->addr));
- if (local->ops->set_port_auth &&
- !(param->u.set_flags_sta.flags_and & WLAN_STA_AUTHORIZED) &&
- local->ops->set_port_auth(local_to_hw(local), sta->addr, 0))
- printk(KERN_DEBUG "%s: failed to set low-level driver "
- "PAE state (unauthorized) for " MAC_FMT "\n",
- dev->name, MAC_ARG(sta->addr));
- sta_info_put(sta);
+ list_for_each_entry(mode, &local->modes_list, list) {
+ if (!(local->enabled_modes & (1 << mode->mode)))
+ continue;
+ for (c = 0; c < mode->num_channels; c++) {
+ struct ieee80211_channel *chan = &mode->channels[c];
+ if (chan->flag & IEEE80211_CHAN_W_SCAN &&
+ ((chan->chan == channel) || (chan->freq == freq))) {
+ local->oper_channel = chan;
+ local->oper_hw_mode = mode;
+ set++;
+ }
+ }
}
- return sta ? 0 : -ENOENT;
-}
-
-
-int ieee80211_set_hw_encryption(struct net_device *dev,
- struct sta_info *sta, u8 addr[ETH_ALEN],
- struct ieee80211_key *key)
-{
- struct ieee80211_key_conf *keyconf = NULL;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- int rc = 0;
-
- /* default to sw encryption; this will be cleared by low-level
- * driver if the hw supports requested encryption */
- if (key)
- key->force_sw_encrypt = 1;
-
- if (key && local->ops->set_key &&
- (keyconf = ieee80211_key_data2conf(local, key))) {
- if (local->ops->set_key(local_to_hw(local), SET_KEY, addr,
- keyconf, sta ? sta->aid : 0)) {
- rc = HOSTAP_CRYPT_ERR_KEY_SET_FAILED;
- key->force_sw_encrypt = 1;
- key->hw_key_idx = HW_KEY_IDX_INVALID;
- } else {
- key->force_sw_encrypt =
- !!(keyconf->flags & IEEE80211_KEY_FORCE_SW_ENCRYPT);
- key->hw_key_idx =
- keyconf->hw_key_idx;
+ if (set) {
+ if (local->sta_scanning)
+ ret = 0;
+ else
+ ret = ieee80211_hw_config(local);
- }
+ rate_control_clear(local);
}
- kfree(keyconf);
- return rc;
+ return ret;
}
-
-static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
- int idx, int alg, int set_tx_key, u32 *err,
- const u8 *_key, size_t key_len)
+static int ieee80211_ioctl_siwfreq(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_freq *freq, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- int ret = 0;
- struct sta_info *sta;
- struct ieee80211_key *key, *old_key;
- int try_hwaccel = 1;
- struct ieee80211_key_conf *keyconf;
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (is_broadcast_ether_addr(sta_addr)) {
- sta = NULL;
- if (idx >= NUM_DEFAULT_KEYS) {
- printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
- dev->name, idx);
- return -EINVAL;
- }
- key = sdata->keys[idx];
+ if (sdata->type == IEEE80211_IF_TYPE_STA)
+ sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
- /* TODO: consider adding hwaccel support for these; at least
- * Atheros key cache should be able to handle this since AP is
- * only transmitting frames with default keys. */
- /* FIX: hw key cache can be used when only one virtual
- * STA is associated with each AP. If more than one STA
- * is associated to the same AP, software encryption
- * must be used. This should be done automatically
- * based on configured station devices. For the time
- * being, this can be only set at compile time. */
+ /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
+ if (freq->e == 0) {
+ if (freq->m < 0) {
+ if (sdata->type == IEEE80211_IF_TYPE_STA)
+ sdata->u.sta.flags |=
+ IEEE80211_STA_AUTO_CHANNEL_SEL;
+ return 0;
+ } else
+ return ieee80211_set_channel(local, freq->m, -1);
} else {
- set_tx_key = 0;
- if (idx != 0) {
- printk(KERN_DEBUG "%s: set_encrypt - non-zero idx for "
- "individual key\n", dev->name);
+ int i, div = 1000000;
+ for (i = 0; i < freq->e; i++)
+ div /= 10;
+ if (div > 0)
+ return ieee80211_set_channel(local, -1, freq->m / div);
+ else
return -EINVAL;
- }
-
- sta = sta_info_get(local, sta_addr);
- if (!sta) {
- if (err)
- *err = HOSTAP_CRYPT_ERR_UNKNOWN_ADDR;
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: set_encrypt - unknown addr "
- MAC_FMT "\n",
- dev->name, MAC_ARG(sta_addr));
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+ }
+}
- return -ENOENT;
- }
- key = sta->key;
- }
+static int ieee80211_ioctl_giwfreq(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_freq *freq, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- /* FIX:
- * Cannot configure default hwaccel keys with WEP algorithm, if
- * any of the virtual interfaces is using static WEP
- * configuration because hwaccel would otherwise try to decrypt
- * these frames.
- *
- * For now, just disable WEP hwaccel for broadcast when there is
- * possibility of conflict with default keys. This can maybe later be
- * optimized by using non-default keys (at least with Atheros ar521x).
- */
- if (!sta && alg == ALG_WEP && !local->default_wep_only &&
- sdata->type != IEEE80211_IF_TYPE_IBSS &&
- sdata->type != IEEE80211_IF_TYPE_AP) {
- try_hwaccel = 0;
- }
+ /* TODO: in station mode (Managed/Ad-hoc) might need to poll low-level
+ * driver for the current channel with firmware-based management */
- if (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP) {
- /* Software encryption cannot be used with devices that hide
- * encryption from the host system, so always try to use
- * hardware acceleration with such devices. */
- try_hwaccel = 1;
- }
+ freq->m = local->hw.conf.freq;
+ freq->e = 6;
- if ((local->hw.flags & IEEE80211_HW_NO_TKIP_WMM_HWACCEL) &&
- alg == ALG_TKIP) {
- if (sta && (sta->flags & WLAN_STA_WME)) {
- /* Hardware does not support hwaccel with TKIP when using WMM.
- */
- try_hwaccel = 0;
- }
- else if (sdata->type == IEEE80211_IF_TYPE_STA) {
- sta = sta_info_get(local, sdata->u.sta.bssid);
- if (sta) {
- if (sta->flags & WLAN_STA_WME) {
- try_hwaccel = 0;
- }
- sta_info_put(sta);
- sta = NULL;
- }
- }
- }
+ return 0;
+}
- if (alg == ALG_NONE) {
- keyconf = NULL;
- if (try_hwaccel && key &&
- key->hw_key_idx != HW_KEY_IDX_INVALID &&
- local->ops->set_key &&
- (keyconf = ieee80211_key_data2conf(local, key)) != NULL &&
- local->ops->set_key(local_to_hw(local), DISABLE_KEY,
- sta_addr, keyconf, sta ? sta->aid : 0)) {
- if (err)
- *err = HOSTAP_CRYPT_ERR_KEY_SET_FAILED;
- printk(KERN_DEBUG "%s: set_encrypt - low-level disable"
- " failed\n", dev->name);
- ret = -EINVAL;
- }
- kfree(keyconf);
- if (set_tx_key || sdata->default_key == key) {
- ieee80211_debugfs_key_remove_default(sdata);
- sdata->default_key = NULL;
- }
- ieee80211_debugfs_key_remove(key);
- if (sta)
- sta->key = NULL;
- else
- sdata->keys[idx] = NULL;
- ieee80211_key_free(key);
- key = NULL;
- } else {
- old_key = key;
- key = ieee80211_key_alloc(sta ? NULL : sdata, idx, key_len,
- GFP_KERNEL);
- if (!key) {
- ret = -ENOMEM;
- goto err_out;
- }
+static int ieee80211_ioctl_siwessid(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *ssid)
+{
+ struct ieee80211_sub_if_data *sdata;
+ size_t len = data->length;
- /* default to sw encryption; low-level driver sets these if the
- * requested encryption is supported */
- key->hw_key_idx = HW_KEY_IDX_INVALID;
- key->force_sw_encrypt = 1;
-
- key->alg = alg;
- key->keyidx = idx;
- key->keylen = key_len;
- memcpy(key->key, _key, key_len);
- if (set_tx_key)
- key->default_tx_key = 1;
-
- if (alg == ALG_CCMP) {
- /* Initialize AES key state here as an optimization
- * so that it does not need to be initialized for every
- * packet. */
- key->u.ccmp.tfm = ieee80211_aes_key_setup_encrypt(
- key->key);
- if (!key->u.ccmp.tfm) {
- ret = -ENOMEM;
- goto err_free;
- }
- }
+ /* iwconfig uses nul termination in SSID.. */
+ if (len > 0 && ssid[len - 1] == '\0')
+ len--;
- if (set_tx_key || sdata->default_key == old_key) {
- ieee80211_debugfs_key_remove_default(sdata);
- sdata->default_key = NULL;
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ int ret;
+ if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
+ if (len > IEEE80211_MAX_SSID_LEN)
+ return -EINVAL;
+ memcpy(sdata->u.sta.ssid, ssid, len);
+ sdata->u.sta.ssid_len = len;
+ return 0;
}
- ieee80211_debugfs_key_remove(old_key);
- if (sta)
- sta->key = key;
+ if (data->flags)
+ sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
else
- sdata->keys[idx] = key;
- ieee80211_key_free(old_key);
- ieee80211_debugfs_key_add(local, key);
- if (sta)
- ieee80211_debugfs_key_sta_link(key, sta);
-
- if (try_hwaccel &&
- (alg == ALG_WEP || alg == ALG_TKIP || alg == ALG_CCMP)) {
- int e = ieee80211_set_hw_encryption(dev, sta, sta_addr,
- key);
- if (err)
- *err = e;
- }
+ sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
+ ret = ieee80211_sta_set_ssid(dev, ssid, len);
+ if (ret)
+ return ret;
+ ieee80211_sta_req_auth(dev, &sdata->u.sta);
+ return 0;
}
- if (set_tx_key || (!sta && !sdata->default_key && key)) {
- sdata->default_key = key;
- if (key)
- ieee80211_debugfs_key_add_default(sdata);
-
- if (local->ops->set_key_idx &&
- local->ops->set_key_idx(local_to_hw(local), idx))
- printk(KERN_DEBUG "%s: failed to set TX key idx for "
- "low-level driver\n", dev->name);
+ if (sdata->type == IEEE80211_IF_TYPE_AP) {
+ memcpy(sdata->u.ap.ssid, ssid, len);
+ memset(sdata->u.ap.ssid + len, 0,
+ IEEE80211_MAX_SSID_LEN - len);
+ sdata->u.ap.ssid_len = len;
+ return ieee80211_if_config(dev);
}
-
- if (sta)
- sta_info_put(sta);
-
- return 0;
-
-err_free:
- ieee80211_key_free(key);
-err_out:
- if (sta)
- sta_info_put(sta);
- return ret;
+ return -EOPNOTSUPP;
}
-static int ieee80211_ioctl_set_encryption(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
+static int ieee80211_ioctl_giwessid(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *ssid)
{
- int alg;
-
- param->u.crypt.err = 0;
- param->u.crypt.alg[HOSTAP_CRYPT_ALG_NAME_LEN - 1] = '\0';
+ size_t len;
- if (param_len <
- (int) ((char *) param->u.crypt.key - (char *) param) +
- param->u.crypt.key_len) {
- printk(KERN_DEBUG "%s: set_encrypt - invalid param_lem\n",
- dev->name);
- return -EINVAL;
+ struct ieee80211_sub_if_data *sdata;
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ int res = ieee80211_sta_get_ssid(dev, ssid, &len);
+ if (res == 0) {
+ data->length = len;
+ data->flags = 1;
+ } else
+ data->flags = 0;
+ return res;
}
- if (strcmp(param->u.crypt.alg, "none") == 0)
- alg = ALG_NONE;
- else if (strcmp(param->u.crypt.alg, "WEP") == 0)
- alg = ALG_WEP;
- else if (strcmp(param->u.crypt.alg, "TKIP") == 0) {
- if (param->u.crypt.key_len != ALG_TKIP_KEY_LEN) {
- printk(KERN_DEBUG "%s: set_encrypt - invalid TKIP key "
- "length %d\n", dev->name,
- param->u.crypt.key_len);
- return -EINVAL;
- }
- alg = ALG_TKIP;
- } else if (strcmp(param->u.crypt.alg, "CCMP") == 0) {
- if (param->u.crypt.key_len != ALG_CCMP_KEY_LEN) {
- printk(KERN_DEBUG "%s: set_encrypt - invalid CCMP key "
- "length %d\n", dev->name,
- param->u.crypt.key_len);
- return -EINVAL;
- }
- alg = ALG_CCMP;
- } else {
- param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ALG;
- printk(KERN_DEBUG "%s: set_encrypt - unknown alg\n",
- dev->name);
- return -EINVAL;
+ if (sdata->type == IEEE80211_IF_TYPE_AP) {
+ len = sdata->u.ap.ssid_len;
+ if (len > IW_ESSID_MAX_SIZE)
+ len = IW_ESSID_MAX_SIZE;
+ memcpy(ssid, sdata->u.ap.ssid, len);
+ data->length = len;
+ data->flags = 1;
+ return 0;
}
-
- return ieee80211_set_encryption(
- dev, param->sta_addr,
- param->u.crypt.idx, alg,
- param->u.crypt.flags & HOSTAP_CRYPT_FLAG_SET_TX_KEY,
- ¶m->u.crypt.err, param->u.crypt.key,
- param->u.crypt.key_len);
+ return -EOPNOTSUPP;
}
-static int ieee80211_ioctl_get_encryption(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
+static int ieee80211_ioctl_siwap(struct net_device *dev,
+ struct iw_request_info *info,
+ struct sockaddr *ap_addr, char *extra)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- int ret = 0;
- struct sta_info *sta;
- struct ieee80211_key **key;
- int max_key_len;
struct ieee80211_sub_if_data *sdata;
- u8 *pos;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- param->u.crypt.err = 0;
-
- max_key_len = param_len -
- (int) ((char *) param->u.crypt.key - (char *) param);
- if (max_key_len < 0)
- return -EINVAL;
-
- if (is_broadcast_ether_addr(param->sta_addr)) {
- sta = NULL;
- if (param->u.crypt.idx >= NUM_DEFAULT_KEYS) {
- param->u.crypt.idx = sdata->default_key ?
- sdata->default_key->keyidx : 0;
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ int ret;
+ if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
+ memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
+ ETH_ALEN);
return 0;
- } else
- key = &sdata->keys[param->u.crypt.idx];
- } else {
- sta = sta_info_get(local, param->sta_addr);
- if (!sta) {
- param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ADDR;
- return -EINVAL;
- }
-
- key = &sta->key;
- }
-
- memset(param->u.crypt.seq_counter, 0, HOSTAP_SEQ_COUNTER_SIZE);
- if (!*key) {
- memcpy(param->u.crypt.alg, "none", 5);
- param->u.crypt.key_len = 0;
- param->u.crypt.idx = 0xff;
- } else {
- switch ((*key)->alg) {
- case ALG_WEP:
- memcpy(param->u.crypt.alg, "WEP", 4);
- break;
- case ALG_TKIP:
- {
- u32 iv32;
- u16 iv16;
-
- memcpy(param->u.crypt.alg, "TKIP", 5);
- if (local->ops->get_sequence_counter) {
- /* Get transmit counter from low level driver */
- if (local->ops->get_sequence_counter(
- local_to_hw(local),
- param->sta_addr,
- (*key)->keyidx,
- IEEE80211_SEQ_COUNTER_TX,
- &iv32,
- &iv16)) {
- /* Error getting value from device */
- return -EIO;
- }
- } else {
- /* Get it from our own local data */
- iv32 = (*key)->u.tkip.iv32;
- iv16 = (*key)->u.tkip.iv16;
- }
- pos = param->u.crypt.seq_counter;
- *pos++ = iv16 & 0xff;
- *pos++ = (iv16 >> 8) & 0xff;
- *pos++ = iv32 & 0xff;
- *pos++ = (iv32 >> 8) & 0xff;
- *pos++ = (iv32 >> 16) & 0xff;
- *pos++ = (iv32 >> 24) & 0xff;
- break;
- }
- case ALG_CCMP:
- {
- u8 *pn;
- memcpy(param->u.crypt.alg, "CCMP", 5);
- pos = param->u.crypt.seq_counter;
- pn = (*key)->u.ccmp.tx_pn;
- *pos++ = pn[5];
- *pos++ = pn[4];
- *pos++ = pn[3];
- *pos++ = pn[2];
- *pos++ = pn[1];
- *pos++ = pn[0];
- break;
- }
- default:
- memcpy(param->u.crypt.alg, "unknown", 8);
- break;
- }
-
- if (max_key_len < (*key)->keylen)
- ret = -E2BIG;
- else {
- param->u.crypt.key_len = (*key)->keylen;
- memcpy(param->u.crypt.key, (*key)->key,
- (*key)->keylen);
}
+ if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
+ sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
+ IEEE80211_STA_AUTO_CHANNEL_SEL;
+ else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
+ sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
+ else
+ sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
+ ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
+ if (ret)
+ return ret;
+ ieee80211_sta_req_auth(dev, &sdata->u.sta);
+ return 0;
+ } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
+ if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
+ ETH_ALEN) == 0)
+ return 0;
+ return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data);
}
- if (sta)
- sta_info_put(sta);
-
- return ret;
+ return -EOPNOTSUPP;
}
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-static int ieee80211_ioctl_wpa_trigger(struct net_device *dev,
- struct prism2_hostapd_param *param)
+static int ieee80211_ioctl_giwap(struct net_device *dev,
+ struct iw_request_info *info,
+ struct sockaddr *ap_addr, char *extra)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
+ struct ieee80211_sub_if_data *sdata;
- if (is_broadcast_ether_addr(param->sta_addr)) {
- local->wpa_trigger = param->u.wpa_trigger.trigger;
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ ap_addr->sa_family = ARPHRD_ETHER;
+ memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
+ return 0;
+ } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
+ ap_addr->sa_family = ARPHRD_ETHER;
+ memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
return 0;
}
- sta = sta_info_get(local, param->sta_addr);
- if (!sta) {
- printk(KERN_DEBUG "%s: wpa_trigger - unknown addr\n",
- dev->name);
- return -EINVAL;
- }
-
- sta->wpa_trigger = param->u.wpa_trigger.trigger;
-
- sta_info_put(sta);
- return 0;
+ return -EOPNOTSUPP;
}
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-static int ieee80211_ioctl_set_rate_sets(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
+static int ieee80211_ioctl_siwscan(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- u16 *pos = (u16 *) param->u.set_rate_sets.data;
- int left = param_len - ((u8 *) pos - (u8 *) param);
- int i, mode, num_supp, num_basic, *supp, *basic, *prev;
- struct ieee80211_hw_mode *hw_mode;
-
- mode = param->u.set_rate_sets.mode;
- num_supp = param->u.set_rate_sets.num_supported_rates;
- num_basic = param->u.set_rate_sets.num_basic_rates;
-
- if (left < (num_supp + num_basic) * 2) {
- printk(KERN_WARNING "%s: invalid length in hostapd set rate "
- "sets ioctl (%d != %d)\n", dev->name, left,
- (num_supp + num_basic) * 2);
- return -EINVAL;
- }
-
- supp = (int *) kmalloc((num_supp + 1) * sizeof(int), GFP_KERNEL);
- basic = (int *) kmalloc((num_basic + 1) * sizeof(int), GFP_KERNEL);
-
- if (!supp || !basic) {
- kfree(supp);
- kfree(basic);
- return -ENOMEM;
- }
-
- for (i = 0; i < num_supp; i++)
- supp[i] = *pos++;
- supp[i] = -1;
-
- for (i = 0; i < num_basic; i++)
- basic[i] = *pos++;
- basic[i] = -1;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ u8 *ssid = NULL;
+ size_t ssid_len = 0;
- if (num_supp == 0) {
- kfree(supp);
- supp = NULL;
- }
+ if (!netif_running(dev))
+ return -ENETDOWN;
- if (num_basic == 0) {
- kfree(basic);
- basic = NULL;
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
+ ssid = sdata->u.sta.ssid;
+ ssid_len = sdata->u.sta.ssid_len;
+ }
+ break;
+ case IEEE80211_IF_TYPE_AP:
+ if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
+ ssid = sdata->u.ap.ssid;
+ ssid_len = sdata->u.ap.ssid_len;
+ }
+ break;
+ default:
+ return -EOPNOTSUPP;
}
- prev = local->supp_rates[mode];
- local->supp_rates[mode] = supp;
- kfree(prev);
-
- prev = local->basic_rates[mode];
- local->basic_rates[mode] = basic;
- kfree(prev);
+ return ieee80211_sta_req_scan(dev, ssid, ssid_len);
+}
- /* TODO: should update STA TX rates and remove STAs if they
- * do not have any remaining supported rates after the change
- */
- list_for_each_entry(hw_mode, &local->modes_list, list)
- if (hw_mode->mode == mode)
- ieee80211_prepare_rates(local, hw_mode);
- return 0;
-}
-
-
-static int ieee80211_ioctl_add_if(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
-{
- u8 *pos = param->u.if_info.data;
- int left = param_len - ((u8 *) pos - (u8 *) param);
- struct net_device *new_dev;
- int res;
- struct hostapd_if_wds *wds;
- struct hostapd_if_bss *bss;
-
- printk(KERN_WARNING "PRISM2_HOSTAPD_ADD_IF ioctl is deprecated!");
- switch (param->u.if_info.type) {
- case HOSTAP_IF_WDS:
- wds = (struct hostapd_if_wds *) param->u.if_info.data;
-
- if (left < sizeof(struct hostapd_if_wds))
- return -EPROTO;
-
- res = ieee80211_if_add(dev, param->u.if_info.name, &new_dev,
- IEEE80211_IF_TYPE_WDS);
- if (res)
- return res;
- res = ieee80211_if_update_wds(new_dev, wds->remote_addr);
- if (unlikely(res)) {
- struct ieee80211_local *local =
- wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata =
- IEEE80211_DEV_TO_SUB_IF(new_dev);
- write_lock_bh(&local->sub_if_lock);
- list_del(&sdata->list);
- write_unlock_bh(&local->sub_if_lock);
- __ieee80211_if_del(local, sdata);
- }
- return res;
- case HOSTAP_IF_VLAN:
- if (left < sizeof(struct hostapd_if_vlan))
- return -EPROTO;
-
- res = ieee80211_if_add(dev, param->u.if_info.name, NULL,
- IEEE80211_IF_TYPE_VLAN);
- return res;
- case HOSTAP_IF_BSS:
- bss = (struct hostapd_if_bss *) param->u.if_info.data;
-
- if (left < sizeof(struct hostapd_if_bss))
- return -EPROTO;
-
- res = ieee80211_if_add(dev, param->u.if_info.name, &new_dev,
- IEEE80211_IF_TYPE_AP);
- if (res)
- return res;
- memcpy(new_dev->dev_addr, bss->bssid, ETH_ALEN);
- return 0;
- case HOSTAP_IF_STA:
- if (left < sizeof(struct hostapd_if_sta))
- return -EPROTO;
-
- res = ieee80211_if_add(dev, param->u.if_info.name, NULL,
- IEEE80211_IF_TYPE_STA);
- return res;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int ieee80211_ioctl_remove_if(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- unsigned int type;
-
- switch (param->u.if_info.type) {
- case HOSTAP_IF_WDS:
- type = IEEE80211_IF_TYPE_WDS;
- break;
- case HOSTAP_IF_VLAN:
- type = IEEE80211_IF_TYPE_VLAN;
- break;
- case HOSTAP_IF_BSS:
- type = IEEE80211_IF_TYPE_AP;
- break;
- case HOSTAP_IF_STA:
- type = IEEE80211_IF_TYPE_STA;
- break;
- default:
- return -EINVAL;
- }
-
- return ieee80211_if_remove(dev, param->u.if_info.name, type);
-}
-
-static int ieee80211_ioctl_update_if(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
-{
- u8 *pos = param->u.if_info.data;
- int left = param_len - ((u8 *) pos - (u8 *) param);
-
- if (param->u.if_info.type == HOSTAP_IF_WDS) {
- struct hostapd_if_wds *wds =
- (struct hostapd_if_wds *) param->u.if_info.data;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct net_device *wds_dev = NULL;
- struct ieee80211_sub_if_data *sdata;
-
- if (left < sizeof(struct ieee80211_if_wds))
- return -EPROTO;
-
- read_lock(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list) {
- if (strcmp(param->u.if_info.name,
- sdata->dev->name) == 0) {
- wds_dev = sdata->dev;
- break;
- }
- }
- read_unlock(&local->sub_if_lock);
-
- if (!wds_dev || sdata->type != IEEE80211_IF_TYPE_WDS)
- return -ENODEV;
-
- return ieee80211_if_update_wds(wds_dev, wds->remote_addr);
- } else {
- return -EOPNOTSUPP;
- }
-}
-
-
-static int ieee80211_ioctl_scan_req(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- u8 *pos = param->u.scan_req.ssid;
- int left = param_len - ((u8 *) pos - (u8 *) param);
- int len = param->u.scan_req.ssid_len;
-
- if (local->user_space_mlme)
- return -EOPNOTSUPP;
-
- if (!netif_running(dev))
- return -ENETDOWN;
-
- if (left < len || len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
-
- return ieee80211_sta_req_scan(dev, pos, len);
-}
-
-
-static int ieee80211_ioctl_sta_get_state(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
- return -EINVAL;
- param->u.sta_get_state.state = sdata->u.sta.state;
- return 0;
-}
-
-
-static int ieee80211_ioctl_mlme(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
-
- if (local->user_space_mlme)
- return -EOPNOTSUPP;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
- return -EINVAL;
- switch (param->u.mlme.cmd) {
- case MLME_STA_DEAUTH:
- return ieee80211_sta_deauthenticate(dev, param->u.mlme.reason_code);
- case MLME_STA_DISASSOC:
- return ieee80211_sta_disassociate(dev, param->u.mlme.reason_code);
- }
- return 0;
-}
-
-
-static int ieee80211_ioctl_get_load_stats(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- param->u.get_load_stats.channel_use = local->channel_use;
-/* if (param->u.get_load_stats.flags & LOAD_STATS_CLEAR)
- local->channel_use = 0; */ /* now it's not raw counter */
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_set_sta_vlan(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
-
- sta = sta_info_get(local, param->sta_addr);
- if (sta) {
- struct net_device *new_vlan_dev;
- new_vlan_dev =
- dev_get_by_name(param->u.set_sta_vlan.vlan_name);
- if (new_vlan_dev) {
-#if 0
- printk("%s: Station " MAC_FMT " moved to vlan: %s\n",
- dev->name, MAC_ARG(param->sta_addr),
- new_vlan_dev->name);
-#endif
- if (sta->dev != new_vlan_dev) {
- ieee80211_send_layer2_update(new_vlan_dev,
- sta->addr);
- }
- sta->dev = new_vlan_dev;
- sta->vlan_id = param->u.set_sta_vlan.vlan_id;
- dev_put(new_vlan_dev);
- }
- sta_info_put(sta);
- }
-
- return sta ? 0 : -ENOENT;
-}
-
-
-static int ieee80211_set_gen_ie(struct net_device *dev, u8 *ie, size_t len)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (local->user_space_mlme)
- return -EOPNOTSUPP;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- int ret = ieee80211_sta_set_extra_ie(dev, ie, len);
- if (ret)
- return ret;
- sdata->u.sta.auto_bssid_sel = 0;
- ieee80211_sta_req_auth(dev, &sdata->u.sta);
- return 0;
- }
-
- if (sdata->type == IEEE80211_IF_TYPE_AP) {
- kfree(sdata->u.ap.generic_elem);
- sdata->u.ap.generic_elem = kmalloc(len, GFP_KERNEL);
- if (!sdata->u.ap.generic_elem)
- return -ENOMEM;
- memcpy(sdata->u.ap.generic_elem, ie, len);
- sdata->u.ap.generic_elem_len = len;
- return ieee80211_if_config(dev);
- }
- return -EOPNOTSUPP;
-}
-
-
-static int
-ieee80211_ioctl_set_generic_info_elem(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
-{
- u8 *pos = param->u.set_generic_info_elem.data;
- int left = param_len - ((u8 *) pos - (u8 *) param);
- int len = param->u.set_generic_info_elem.len;
-
- if (left < len)
- return -EINVAL;
-
- return ieee80211_set_gen_ie(dev, pos, len);
-}
-
-
-static int ieee80211_ioctl_set_regulatory_domain(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_conf *conf = &local->hw.conf;
- conf->regulatory_domain = param->u.set_regulatory_domain.rd;
- return 0;
-}
-
-
-static int ieee80211_ioctl_set_radio_enabled(struct net_device *dev,
- int val)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_conf *conf = &local->hw.conf;
-
- conf->radio_enabled = val;
- return ieee80211_hw_config(wdev_priv(dev->ieee80211_ptr));
-}
-
-static int
-ieee80211_ioctl_set_tx_queue_params(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_tx_queue_params qparam;
-
- if (!local->ops->conf_tx) {
- printk(KERN_DEBUG "%s: low-level driver does not support TX "
- "queue configuration\n", dev->name);
- return -EOPNOTSUPP;
- }
-
- memset(&qparam, 0, sizeof(qparam));
- qparam.aifs = param->u.tx_queue_params.aifs;
- qparam.cw_min = param->u.tx_queue_params.cw_min;
- qparam.cw_max = param->u.tx_queue_params.cw_max;
- qparam.burst_time = param->u.tx_queue_params.burst_time;
-
- return local->ops->conf_tx(local_to_hw(local),
- param->u.tx_queue_params.queue,
- &qparam);
-}
-
-
-static int ieee80211_ioctl_get_tx_stats(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_tx_queue_stats stats;
- int ret, i;
-
- if (!local->ops->get_tx_stats)
- return -EOPNOTSUPP;
-
- memset(&stats, 0, sizeof(stats));
- ret = local->ops->get_tx_stats(local_to_hw(local), &stats);
- if (ret)
- return ret;
-
- for (i = 0; i < 4; i++) {
- param->u.get_tx_stats.data[i].len = stats.data[i].len;
- param->u.get_tx_stats.data[i].limit = stats.data[i].limit;
- param->u.get_tx_stats.data[i].count = stats.data[i].count;
- }
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_set_channel_flag(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw_mode *mode;
- struct ieee80211_channel *chan = NULL;
- int i;
-
- list_for_each_entry(mode, &local->modes_list, list) {
- if (mode->mode == param->u.set_channel_flag.mode)
- goto found;
- }
- return -ENOENT;
-found:
-
- for (i = 0; i < mode->num_channels; i++) {
- chan = &mode->channels[i];
- if (chan->chan == param->u.set_channel_flag.chan)
- break;
- chan = NULL;
- }
-
- if (!chan)
- return -ENOENT;
-
- chan->flag = param->u.set_channel_flag.flag;
- chan->power_level = param->u.set_channel_flag.power_level;
- chan->antenna_max = param->u.set_channel_flag.antenna_max;
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_set_quiet_params(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_conf *conf = &local->hw.conf;
-
- conf->quiet_duration = param->u.quiet.duration;
- conf->quiet_offset = param->u.quiet.offset;
- conf->quiet_period = param->u.quiet.period;
- return 0;
-}
-
-
-static int ieee80211_ioctl_set_radar_params(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_conf *conf = &local->hw.conf;
-
- conf->radar_firpwr_threshold = param->u.radar.radar_firpwr_threshold;
- conf->radar_rssi_threshold = param->u.radar.radar_rssi_threshold;
- conf->pulse_height_threshold = param->u.radar.pulse_height_threshold;
- conf->pulse_rssi_threshold = param->u.radar.pulse_rssi_threshold;
- conf->pulse_inband_threshold = param->u.radar.pulse_inband_threshold;
- return 0;
-}
-
-
-static int ieee80211_ioctl_priv_hostapd(struct net_device *dev,
- struct iw_point *p)
-{
- struct prism2_hostapd_param *param;
- int ret = 0;
-
- if (p->length < sizeof(struct prism2_hostapd_param) ||
- p->length > PRISM2_HOSTAPD_MAX_BUF_SIZE || !p->pointer) {
- printk(KERN_DEBUG "%s: hostapd ioctl: ptr=%p len=%d min=%d "
- "max=%d\n", dev->name, p->pointer, p->length,
- (int)sizeof(struct prism2_hostapd_param),
- PRISM2_HOSTAPD_MAX_BUF_SIZE);
- return -EINVAL;
- }
-
- param = (struct prism2_hostapd_param *) kmalloc(p->length, GFP_KERNEL);
- if (!param)
- return -ENOMEM;
-
- if (copy_from_user(param, p->pointer, p->length)) {
- ret = -EFAULT;
- goto out;
- }
-
- switch (param->cmd) {
- case PRISM2_HOSTAPD_FLUSH:
- ret = ieee80211_ioctl_flush(dev, param);
- break;
- case PRISM2_HOSTAPD_ADD_STA:
- ret = ieee80211_ioctl_add_sta(dev, param);
- break;
- case PRISM2_HOSTAPD_REMOVE_STA:
- ret = ieee80211_ioctl_remove_sta(dev, param);
- break;
- case PRISM2_HOSTAPD_GET_INFO_STA:
- ret = ieee80211_ioctl_get_info_sta(dev, param);
- break;
- case PRISM2_SET_ENCRYPTION:
- ret = ieee80211_ioctl_set_encryption(dev, param, p->length);
- break;
- case PRISM2_GET_ENCRYPTION:
- ret = ieee80211_ioctl_get_encryption(dev, param, p->length);
- break;
- case PRISM2_HOSTAPD_SET_FLAGS_STA:
- ret = ieee80211_ioctl_set_flags_sta(dev, param);
- break;
- case PRISM2_HOSTAPD_SET_BEACON:
- ret = ieee80211_ioctl_set_beacon(dev, param, p->length, 0);
- break;
- case PRISM2_HOSTAPD_GET_HW_FEATURES:
- ret = ieee80211_ioctl_get_hw_features(dev, param, p->length);
- break;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- case PRISM2_HOSTAPD_WPA_TRIGGER:
- ret = ieee80211_ioctl_wpa_trigger(dev, param);
- break;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
- case PRISM2_HOSTAPD_SET_RATE_SETS:
- ret = ieee80211_ioctl_set_rate_sets(dev, param, p->length);
- break;
- case PRISM2_HOSTAPD_ADD_IF:
- ret = ieee80211_ioctl_add_if(dev, param, p->length);
- break;
- case PRISM2_HOSTAPD_REMOVE_IF:
- ret = ieee80211_ioctl_remove_if(dev, param);
- break;
- case PRISM2_HOSTAPD_GET_DOT11COUNTERSTABLE:
- ret = ieee80211_ioctl_get_dot11counterstable(dev, param);
- break;
- case PRISM2_HOSTAPD_GET_LOAD_STATS:
- ret = ieee80211_ioctl_get_load_stats(dev, param);
- break;
- case PRISM2_HOSTAPD_SET_STA_VLAN:
- ret = ieee80211_ioctl_set_sta_vlan(dev, param);
- break;
- case PRISM2_HOSTAPD_SET_GENERIC_INFO_ELEM:
- ret = ieee80211_ioctl_set_generic_info_elem(dev, param,
- p->length);
- break;
- case PRISM2_HOSTAPD_SET_CHANNEL_FLAG:
- ret = ieee80211_ioctl_set_channel_flag(dev, param);
- break;
- case PRISM2_HOSTAPD_SET_REGULATORY_DOMAIN:
- ret = ieee80211_ioctl_set_regulatory_domain(dev, param);
- break;
- case PRISM2_HOSTAPD_SET_TX_QUEUE_PARAMS:
- ret = ieee80211_ioctl_set_tx_queue_params(dev, param);
- break;
- case PRISM2_HOSTAPD_GET_TX_STATS:
- ret = ieee80211_ioctl_get_tx_stats(dev, param);
- break;
- case PRISM2_HOSTAPD_UPDATE_IF:
- ret = ieee80211_ioctl_update_if(dev, param, p->length);
- break;
- case PRISM2_HOSTAPD_SCAN_REQ:
- ret = ieee80211_ioctl_scan_req(dev, param, p->length);
- break;
- case PRISM2_STA_GET_STATE:
- ret = ieee80211_ioctl_sta_get_state(dev, param);
- break;
- case PRISM2_HOSTAPD_MLME:
- ret = ieee80211_ioctl_mlme(dev, param);
- break;
- case PRISM2_HOSTAPD_SET_RADAR_PARAMS:
- ret = ieee80211_ioctl_set_radar_params(dev, param);
- break;
- case PRISM2_HOSTAPD_SET_QUIET_PARAMS:
- ret = ieee80211_ioctl_set_quiet_params(dev, param);
- break;
- default:
- ret = -EOPNOTSUPP;
- break;
- }
-
- if (copy_to_user(p->pointer, param, p->length))
- ret = -EFAULT;
-
- out:
- kfree(param);
-
- return ret;
-}
-
-
-static int ieee80211_ioctl_giwname(struct net_device *dev,
- struct iw_request_info *info,
- char *name, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- switch (local->hw.conf.phymode) {
- case MODE_IEEE80211A:
- strcpy(name, "IEEE 802.11a");
- break;
- case MODE_IEEE80211B:
- strcpy(name, "IEEE 802.11b");
- break;
- case MODE_IEEE80211G:
- strcpy(name, "IEEE 802.11g");
- break;
- case MODE_ATHEROS_TURBO:
- strcpy(name, "5GHz Turbo");
- break;
- default:
- strcpy(name, "IEEE 802.11");
- break;
- }
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_giwrange(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct iw_range *range = (struct iw_range *) extra;
-
- data->length = sizeof(struct iw_range);
- memset(range, 0, sizeof(struct iw_range));
-
- range->we_version_compiled = WIRELESS_EXT;
- range->we_version_source = 21;
- range->retry_capa = IW_RETRY_LIMIT;
- range->retry_flags = IW_RETRY_LIMIT;
- range->min_retry = 0;
- range->max_retry = 255;
- range->min_rts = 0;
- range->max_rts = 2347;
- range->min_frag = 256;
- range->max_frag = 2346;
-
- range->encoding_size[0] = 5;
- range->encoding_size[1] = 13;
- range->num_encoding_sizes = 2;
- range->max_encoding_tokens = NUM_DEFAULT_KEYS;
-
- range->max_qual.qual = local->hw.max_signal;
- range->max_qual.level = local->hw.max_rssi;
- range->max_qual.noise = local->hw.max_noise;
- range->max_qual.updated = local->wstats_flags;
-
- range->avg_qual.qual = local->hw.max_signal/2;
- range->avg_qual.level = 0;
- range->avg_qual.noise = 0;
- range->avg_qual.updated = local->wstats_flags;
-
- range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
- IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
-
- IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
- IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
- IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
- IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_siwmode(struct net_device *dev,
- struct iw_request_info *info,
- __u32 *mode, char *extra)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int type;
-
- if (sdata->type == IEEE80211_IF_TYPE_VLAN)
- return -EOPNOTSUPP;
-
- switch (*mode) {
- case IW_MODE_MASTER:
- type = IEEE80211_IF_TYPE_AP;
- break;
- case IW_MODE_INFRA:
- type = IEEE80211_IF_TYPE_STA;
- break;
- case IW_MODE_ADHOC:
- type = IEEE80211_IF_TYPE_IBSS;
- break;
- case IW_MODE_MONITOR:
- type = IEEE80211_IF_TYPE_MNTR;
- break;
- case IW_MODE_REPEAT:
- type = IEEE80211_IF_TYPE_WDS;
- break;
- default:
- return -EINVAL;
- }
-
- if (type == sdata->type)
- return 0;
- if (netif_running(dev))
- return -EBUSY;
-
- ieee80211_if_reinit(dev);
- ieee80211_if_set_type(dev, type);
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_giwmode(struct net_device *dev,
- struct iw_request_info *info,
- __u32 *mode, char *extra)
-{
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_AP:
- *mode = IW_MODE_MASTER;
- break;
- case IEEE80211_IF_TYPE_STA:
- *mode = IW_MODE_INFRA;
- break;
- case IEEE80211_IF_TYPE_IBSS:
- *mode = IW_MODE_ADHOC;
- break;
- case IEEE80211_IF_TYPE_MNTR:
- *mode = IW_MODE_MONITOR;
- break;
- case IEEE80211_IF_TYPE_WDS:
- *mode = IW_MODE_REPEAT;
- break;
- case IEEE80211_IF_TYPE_VLAN:
- *mode = IW_MODE_SECOND; /* FIXME */
- break;
- default:
- *mode = IW_MODE_AUTO;
- break;
- }
- return 0;
-}
-
-int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq)
-{
- struct ieee80211_hw_mode *mode;
- int c, set = 0;
- int ret = -EINVAL;
-
- list_for_each_entry(mode, &local->modes_list, list) {
- if (!(local->enabled_modes & (1 << mode->mode)))
- continue;
- for (c = 0; c < mode->num_channels; c++) {
- struct ieee80211_channel *chan = &mode->channels[c];
- if (chan->flag & IEEE80211_CHAN_W_SCAN &&
- ((chan->chan == channel) || (chan->freq == freq))) {
- /* Use next_mode as the mode preference to
- * resolve non-unique channel numbers. */
- if (set && mode->mode != local->next_mode)
- continue;
-
- local->oper_channel = chan;
- local->oper_hw_mode = mode;
- set++;
- }
- }
- }
-
- if (set) {
- if (local->sta_scanning)
- ret = 0;
- else
- ret = ieee80211_hw_config(local);
-
- rate_control_clear(local);
- }
-
- return ret;
-}
-
-static int ieee80211_ioctl_siwfreq(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_freq *freq, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sdata->type == IEEE80211_IF_TYPE_STA)
- sdata->u.sta.auto_channel_sel = 0;
-
- /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
- if (freq->e == 0) {
- if (freq->m < 0) {
- if (sdata->type == IEEE80211_IF_TYPE_STA)
- sdata->u.sta.auto_channel_sel = 1;
- return 0;
- } else
- return ieee80211_set_channel(local, freq->m, -1);
- } else {
- int i, div = 1000000;
- for (i = 0; i < freq->e; i++)
- div /= 10;
- if (div > 0)
- return ieee80211_set_channel(local, -1, freq->m / div);
- else
- return -EINVAL;
- }
-}
-
-
-static int ieee80211_ioctl_giwfreq(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_freq *freq, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- /* TODO: in station mode (Managed/Ad-hoc) might need to poll low-level
- * driver for the current channel with firmware-based management */
-
- freq->m = local->hw.conf.freq;
- freq->e = 6;
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_siwessid(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *ssid)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
- size_t len = data->length;
-
- /* iwconfig uses nul termination in SSID.. */
- if (len > 0 && ssid[len - 1] == '\0')
- len--;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- int ret;
- if (local->user_space_mlme) {
- if (len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
- memcpy(sdata->u.sta.ssid, ssid, len);
- sdata->u.sta.ssid_len = len;
- return 0;
- }
- sdata->u.sta.auto_ssid_sel = !data->flags;
- ret = ieee80211_sta_set_ssid(dev, ssid, len);
- if (ret)
- return ret;
- ieee80211_sta_req_auth(dev, &sdata->u.sta);
- return 0;
- }
-
- if (sdata->type == IEEE80211_IF_TYPE_AP) {
- memcpy(sdata->u.ap.ssid, ssid, len);
- memset(sdata->u.ap.ssid + len, 0,
- IEEE80211_MAX_SSID_LEN - len);
- sdata->u.ap.ssid_len = len;
- return ieee80211_if_config(dev);
- }
- return -EOPNOTSUPP;
-}
-
-
-static int ieee80211_ioctl_giwessid(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *ssid)
-{
- size_t len;
-
- struct ieee80211_sub_if_data *sdata;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- int res = ieee80211_sta_get_ssid(dev, ssid, &len);
- if (res == 0) {
- data->length = len;
- data->flags = 1;
- } else
- data->flags = 0;
- return res;
- }
-
- if (sdata->type == IEEE80211_IF_TYPE_AP) {
- len = sdata->u.ap.ssid_len;
- if (len > IW_ESSID_MAX_SIZE)
- len = IW_ESSID_MAX_SIZE;
- memcpy(ssid, sdata->u.ap.ssid, len);
- data->length = len;
- data->flags = 1;
- return 0;
- }
- return -EOPNOTSUPP;
-}
-
-
-static int ieee80211_ioctl_siwap(struct net_device *dev,
- struct iw_request_info *info,
- struct sockaddr *ap_addr, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- int ret;
- if (local->user_space_mlme) {
- memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
- ETH_ALEN);
- return 0;
- }
- if (is_zero_ether_addr((u8 *) &ap_addr->sa_data)) {
- sdata->u.sta.auto_bssid_sel = 1;
- sdata->u.sta.auto_channel_sel = 1;
- } else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
- sdata->u.sta.auto_bssid_sel = 1;
- else
- sdata->u.sta.auto_bssid_sel = 0;
- ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
- if (ret)
- return ret;
- ieee80211_sta_req_auth(dev, &sdata->u.sta);
- return 0;
- } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
- if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
- ETH_ALEN) == 0)
- return 0;
- return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data);
- }
-
- return -EOPNOTSUPP;
-}
-
-
-static int ieee80211_ioctl_giwap(struct net_device *dev,
- struct iw_request_info *info,
- struct sockaddr *ap_addr, char *extra)
-{
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- ap_addr->sa_family = ARPHRD_ETHER;
- memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
- return 0;
- } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
- ap_addr->sa_family = ARPHRD_ETHER;
- memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
- return 0;
- }
-
- return -EOPNOTSUPP;
-}
-
-
-static int ieee80211_ioctl_siwscan(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- u8 *ssid = NULL;
- size_t ssid_len = 0;
-
- if (!netif_running(dev))
- return -ENETDOWN;
-
- if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- ssid = sdata->u.sta.ssid;
- ssid_len = sdata->u.sta.ssid_len;
- } else if (sdata->type == IEEE80211_IF_TYPE_AP) {
- ssid = sdata->u.ap.ssid;
- ssid_len = sdata->u.ap.ssid_len;
- } else
- return -EINVAL;
- }
- return ieee80211_sta_req_scan(dev, ssid, ssid_len);
-}
-
-
-static int ieee80211_ioctl_giwscan(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- int res;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- if (local->sta_scanning)
- return -EAGAIN;
- res = ieee80211_sta_scan_results(dev, extra, data->length);
- if (res >= 0) {
- data->length = res;
- return 0;
- }
- data->length = 0;
- return res;
-}
-
-
-static int ieee80211_ioctl_giwrate(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *rate, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA)
- sta = sta_info_get(local, sdata->u.sta.bssid);
- else
- return -EOPNOTSUPP;
- if (!sta)
- return -ENODEV;
- if (sta->txrate < local->oper_hw_mode->num_rates)
- rate->value = local->oper_hw_mode->rates[sta->txrate].rate * 100000;
- else
- rate->value = 0;
- sta_info_put(sta);
- return 0;
-}
-
-static int ieee80211_ioctl_siwrts(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *rts, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (rts->disabled)
- local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
- else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
- return -EINVAL;
- else
- local->rts_threshold = rts->value;
-
- /* If the wlan card performs RTS/CTS in hardware/firmware,
- * configure it here */
-
- if (local->ops->set_rts_threshold)
- local->ops->set_rts_threshold(local_to_hw(local),
- local->rts_threshold);
-
- return 0;
-}
-
-static int ieee80211_ioctl_giwrts(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *rts, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- rts->value = local->rts_threshold;
- rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
- rts->fixed = 1;
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_siwfrag(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *frag, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (frag->disabled)
- local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
- else if (frag->value < 256 ||
- frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
- return -EINVAL;
- else {
- /* Fragment length must be even, so strip LSB. */
- local->fragmentation_threshold = frag->value & ~0x1;
- }
-
- /* If the wlan card performs fragmentation in hardware/firmware,
- * configure it here */
-
- if (local->ops->set_frag_threshold)
- local->ops->set_frag_threshold(
- local_to_hw(local),
- local->fragmentation_threshold);
-
- return 0;
-}
-
-static int ieee80211_ioctl_giwfrag(struct net_device *dev,
+static int ieee80211_ioctl_giwscan(struct net_device *dev,
struct iw_request_info *info,
- struct iw_param *frag, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- frag->value = local->fragmentation_threshold;
- frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
- frag->fixed = 1;
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_siwretry(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *retry, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (retry->disabled ||
- (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
- return -EINVAL;
-
- if (retry->flags & IW_RETRY_MAX)
- local->long_retry_limit = retry->value;
- else if (retry->flags & IW_RETRY_MIN)
- local->short_retry_limit = retry->value;
- else {
- local->long_retry_limit = retry->value;
- local->short_retry_limit = retry->value;
- }
-
- if (local->ops->set_retry_limit) {
- return local->ops->set_retry_limit(
- local_to_hw(local),
- local->short_retry_limit,
- local->long_retry_limit);
- }
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_giwretry(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *retry, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- retry->disabled = 0;
- if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
- /* first return min value, iwconfig will ask max value
- * later if needed */
- retry->flags |= IW_RETRY_LIMIT;
- retry->value = local->short_retry_limit;
- if (local->long_retry_limit != local->short_retry_limit)
- retry->flags |= IW_RETRY_MIN;
- return 0;
- }
- if (retry->flags & IW_RETRY_MAX) {
- retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
- retry->value = local->long_retry_limit;
- }
-
- return 0;
-}
-
-static int ieee80211_ioctl_clear_keys(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_key_conf key;
- int i;
- u8 addr[ETH_ALEN];
- struct ieee80211_key_conf *keyconf;
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
-
- memset(addr, 0xff, ETH_ALEN);
- read_lock(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list) {
- for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
- keyconf = NULL;
- if (sdata->keys[i] &&
- !sdata->keys[i]->force_sw_encrypt &&
- local->ops->set_key &&
- (keyconf = ieee80211_key_data2conf(local,
- sdata->keys[i])))
- local->ops->set_key(local_to_hw(local),
- DISABLE_KEY, addr,
- keyconf, 0);
- kfree(keyconf);
- ieee80211_key_free(sdata->keys[i]);
- sdata->keys[i] = NULL;
- }
- sdata->default_key = NULL;
- }
- read_unlock(&local->sub_if_lock);
-
- spin_lock_bh(&local->sta_lock);
- list_for_each_entry(sta, &local->sta_list, list) {
- keyconf = NULL;
- if (sta->key && !sta->key->force_sw_encrypt &&
- local->ops->set_key &&
- (keyconf = ieee80211_key_data2conf(local, sta->key)))
- local->ops->set_key(local_to_hw(local), DISABLE_KEY,
- sta->addr, keyconf, sta->aid);
- kfree(keyconf);
- ieee80211_key_free(sta->key);
- sta->key = NULL;
- }
- spin_unlock_bh(&local->sta_lock);
-
- memset(&key, 0, sizeof(key));
- if (local->ops->set_key &&
- local->ops->set_key(local_to_hw(local), REMOVE_ALL_KEYS,
- NULL, &key, 0))
- printk(KERN_DEBUG "%s: failed to remove hwaccel keys\n",
- dev->name);
-
- return 0;
-}
-
-
-static int
-ieee80211_ioctl_force_unicast_rate(struct net_device *dev,
- struct ieee80211_sub_if_data *sdata,
- int rate)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw_mode *mode;
- int i;
-
- if (sdata->type != IEEE80211_IF_TYPE_AP)
- return -ENOENT;
-
- if (rate == 0) {
- sdata->u.ap.force_unicast_rateidx = -1;
- return 0;
- }
-
- mode = local->oper_hw_mode;
- for (i = 0; i < mode->num_rates; i++) {
- if (mode->rates[i].rate == rate) {
- sdata->u.ap.force_unicast_rateidx = i;
- return 0;
- }
- }
- return -EINVAL;
-}
-
-
-static int
-ieee80211_ioctl_max_ratectrl_rate(struct net_device *dev,
- struct ieee80211_sub_if_data *sdata,
- int rate)
+ struct iw_point *data, char *extra)
{
+ int res;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw_mode *mode;
- int i;
-
- if (sdata->type != IEEE80211_IF_TYPE_AP)
- return -ENOENT;
-
- if (rate == 0) {
- sdata->u.ap.max_ratectrl_rateidx = -1;
+ if (local->sta_scanning)
+ return -EAGAIN;
+ res = ieee80211_sta_scan_results(dev, extra, data->length);
+ if (res >= 0) {
+ data->length = res;
return 0;
}
+ data->length = 0;
+ return res;
+}
- mode = local->oper_hw_mode;
- for (i = 0; i < mode->num_rates; i++) {
- if (mode->rates[i].rate == rate) {
- sdata->u.ap.max_ratectrl_rateidx = i;
- return 0;
- }
- }
- return -EINVAL;
-}
-
-
-static void ieee80211_key_enable_hwaccel(struct ieee80211_local *local,
- struct ieee80211_key *key)
-{
- struct ieee80211_key_conf *keyconf;
- u8 addr[ETH_ALEN];
-
- if (!key || key->alg != ALG_WEP || !key->force_sw_encrypt ||
- (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
- return;
-
- memset(addr, 0xff, ETH_ALEN);
- keyconf = ieee80211_key_data2conf(local, key);
- if (keyconf && local->ops->set_key &&
- local->ops->set_key(local_to_hw(local),
- SET_KEY, addr, keyconf, 0) == 0) {
- key->force_sw_encrypt =
- !!(keyconf->flags & IEEE80211_KEY_FORCE_SW_ENCRYPT);
- key->hw_key_idx = keyconf->hw_key_idx;
- }
- kfree(keyconf);
-}
-
-
-static void ieee80211_key_disable_hwaccel(struct ieee80211_local *local,
- struct ieee80211_key *key)
-{
- struct ieee80211_key_conf *keyconf;
- u8 addr[ETH_ALEN];
-
- if (!key || key->alg != ALG_WEP || key->force_sw_encrypt ||
- (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
- return;
-
- memset(addr, 0xff, ETH_ALEN);
- keyconf = ieee80211_key_data2conf(local, key);
- if (keyconf && local->ops->set_key)
- local->ops->set_key(local_to_hw(local), DISABLE_KEY,
- addr, keyconf, 0);
- kfree(keyconf);
- key->force_sw_encrypt = 1;
-}
-
-
-static int ieee80211_ioctl_default_wep_only(struct ieee80211_local *local,
- int value)
-{
- int i;
- struct ieee80211_sub_if_data *sdata;
-
- local->default_wep_only = value;
- read_lock(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list)
- for (i = 0; i < NUM_DEFAULT_KEYS; i++)
- if (value)
- ieee80211_key_enable_hwaccel(local,
- sdata->keys[i]);
- else
- ieee80211_key_disable_hwaccel(local,
- sdata->keys[i]);
- read_unlock(&local->sub_if_lock);
-
- return 0;
-}
-
-
-void ieee80211_update_default_wep_only(struct ieee80211_local *local)
-{
- int i = 0;
- struct ieee80211_sub_if_data *sdata;
-
- read_lock(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list) {
-
- if (sdata->dev == local->mdev)
- continue;
-
- /* If there is an AP interface then depend on userspace to
- set default_wep_only correctly. */
- if (sdata->type == IEEE80211_IF_TYPE_AP) {
- read_unlock(&local->sub_if_lock);
- return;
- }
-
- i++;
- }
-
- read_unlock(&local->sub_if_lock);
-
- if (i <= 1)
- ieee80211_ioctl_default_wep_only(local, 1);
- else
- ieee80211_ioctl_default_wep_only(local, 0);
-}
-
-
-static int ieee80211_ioctl_prism2_param(struct net_device *dev,
- struct iw_request_info *info,
- void *wrqu, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
- int *i = (int *) extra;
- int param = *i;
- int value = *(i + 1);
- int ret = 0;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- switch (param) {
- case PRISM2_PARAM_HOST_ENCRYPT:
- case PRISM2_PARAM_HOST_DECRYPT:
- /* TODO: implement these; return success now to prevent
- * hostapd from aborting */
- break;
-
- case PRISM2_PARAM_BEACON_INT:
- local->hw.conf.beacon_int = value;
- if (ieee80211_hw_config(local))
- ret = -EINVAL;
- break;
-
- case PRISM2_PARAM_AP_BRIDGE_PACKETS:
- local->bridge_packets = value;
- break;
-
- case PRISM2_PARAM_AP_AUTH_ALGS:
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- sdata->u.sta.auth_algs = value;
- } else
- ret = -EOPNOTSUPP;
- break;
-
- case PRISM2_PARAM_DTIM_PERIOD:
- if (value < 1)
- ret = -EINVAL;
- else if (sdata->type != IEEE80211_IF_TYPE_AP)
- ret = -ENOENT;
- else
- sdata->u.ap.dtim_period = value;
- break;
-
- case PRISM2_PARAM_IEEE_802_1X:
- if (local->ops->set_ieee8021x)
- ret = local->ops->set_ieee8021x(local_to_hw(local),
- value);
- if (ret)
- printk(KERN_DEBUG "%s: failed to set IEEE 802.1X (%d) "
- "for low-level driver\n", dev->name, value);
- else
- sdata->ieee802_1x = value;
- break;
-
- case PRISM2_PARAM_ANTSEL_TX:
- local->hw.conf.antenna_sel_tx = value;
- if (ieee80211_hw_config(local))
- ret = -EINVAL;
- break;
-
- case PRISM2_PARAM_ANTSEL_RX:
- local->hw.conf.antenna_sel_rx = value;
- if (ieee80211_hw_config(local))
- ret = -EINVAL;
- break;
-
- case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
- local->cts_protect_erp_frames = value;
- break;
-
- case PRISM2_PARAM_DROP_UNENCRYPTED:
- sdata->drop_unencrypted = value;
- break;
-
- case PRISM2_PARAM_PREAMBLE:
- local->short_preamble = value;
- break;
-
- case PRISM2_PARAM_STAT_TIME:
- if (!local->stat_time && value) {
- local->stat_timer.expires = jiffies + HZ * value / 100;
- add_timer(&local->stat_timer);
- } else if (local->stat_time && !value) {
- del_timer_sync(&local->stat_timer);
- }
- local->stat_time = value;
- break;
- case PRISM2_PARAM_SHORT_SLOT_TIME:
- if (value)
- local->hw.conf.flags |= IEEE80211_CONF_SHORT_SLOT_TIME;
- else
- local->hw.conf.flags &= ~IEEE80211_CONF_SHORT_SLOT_TIME;
- if (ieee80211_hw_config(local))
- ret = -EINVAL;
- break;
-
- case PRISM2_PARAM_PRIVACY_INVOKED:
- if (local->ops->set_privacy_invoked)
- ret = local->ops->set_privacy_invoked(
- local_to_hw(local), value);
- break;
-
- case PRISM2_PARAM_NEXT_MODE:
- local->next_mode = value;
- break;
-
- case PRISM2_PARAM_CLEAR_KEYS:
- ret = ieee80211_ioctl_clear_keys(dev);
- break;
-
- case PRISM2_PARAM_RADIO_ENABLED:
- ret = ieee80211_ioctl_set_radio_enabled(dev, value);
- break;
-
- case PRISM2_PARAM_ANTENNA_MODE:
- local->hw.conf.antenna_mode = value;
- if (ieee80211_hw_config(local))
- ret = -EINVAL;
- break;
-
- case PRISM2_PARAM_BROADCAST_SSID:
- if ((value < 0) || (value > 1))
- ret = -EINVAL;
- else if (value)
- local->hw.conf.flags |= IEEE80211_CONF_SSID_HIDDEN;
- else
- local->hw.conf.flags &= ~IEEE80211_CONF_SSID_HIDDEN;
- break;
-
- case PRISM2_PARAM_STA_ANTENNA_SEL:
- local->sta_antenna_sel = value;
- break;
-
- case PRISM2_PARAM_FORCE_UNICAST_RATE:
- ret = ieee80211_ioctl_force_unicast_rate(dev, sdata, value);
- break;
-
- case PRISM2_PARAM_MAX_RATECTRL_RATE:
- ret = ieee80211_ioctl_max_ratectrl_rate(dev, sdata, value);
- break;
-
- case PRISM2_PARAM_RATE_CTRL_NUM_UP:
- local->rate_ctrl_num_up = value;
- break;
-
- case PRISM2_PARAM_RATE_CTRL_NUM_DOWN:
- local->rate_ctrl_num_down = value;
- break;
-
- case PRISM2_PARAM_TX_POWER_REDUCTION:
- if (value < 0)
- ret = -EINVAL;
- else
- local->hw.conf.tx_power_reduction = value;
- break;
-
- case PRISM2_PARAM_EAPOL:
- sdata->eapol = value;
- break;
-
- case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
- local->key_tx_rx_threshold = value;
- break;
-
- case PRISM2_PARAM_KEY_INDEX:
- if (value < 0 || value >= NUM_DEFAULT_KEYS)
- ret = -EINVAL;
- else if (!sdata->keys[value])
- ret = -ENOENT;
- else
- sdata->default_key = sdata->keys[value];
- break;
-
- case PRISM2_PARAM_DEFAULT_WEP_ONLY:
- ret = ieee80211_ioctl_default_wep_only(local, value);
- break;
-
- case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
- local->wifi_wme_noack_test = value;
- break;
-
- case PRISM2_PARAM_ALLOW_BROADCAST_ALWAYS:
- local->allow_broadcast_always = value;
- break;
-
- case PRISM2_PARAM_SCAN_FLAGS:
- local->scan_flags = value;
- break;
-
- case PRISM2_PARAM_MIXED_CELL:
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
- ret = -EINVAL;
- else
- sdata->u.sta.mixed_cell = !!value;
- break;
-
- case PRISM2_PARAM_KEY_MGMT:
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- ret = -EINVAL;
- else
- sdata->u.sta.key_mgmt = value;
- break;
-
- case PRISM2_PARAM_HW_MODES:
- local->enabled_modes = value;
- break;
- case PRISM2_PARAM_CREATE_IBSS:
- if (sdata->type != IEEE80211_IF_TYPE_IBSS)
- ret = -EINVAL;
- else
- sdata->u.sta.create_ibss = !!value;
- break;
- case PRISM2_PARAM_WMM_ENABLED:
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
- ret = -EINVAL;
- else
- sdata->u.sta.wmm_enabled = !!value;
- break;
- case PRISM2_PARAM_RADAR_DETECT:
- local->hw.conf.radar_detect = value;
- break;
- case PRISM2_PARAM_SPECTRUM_MGMT:
- local->hw.conf.spect_mgmt = value;
- break;
- case PRISM2_PARAM_MGMT_IF:
- if (value == 1) {
- if (!local->apdev)
- ret = ieee80211_if_add_mgmt(local);
- } else if (value == 0) {
- if (local->apdev)
- ieee80211_if_del_mgmt(local);
- } else
- ret = -EINVAL;
- break;
- case PRISM2_PARAM_USER_SPACE_MLME:
- local->user_space_mlme = value;
- break;
- default:
- ret = -EOPNOTSUPP;
- break;
- }
+static int ieee80211_ioctl_siwrate(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *rate, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hw_mode *mode;
+ int i;
+ u32 target_rate = rate->value / 100000;
+ struct ieee80211_sub_if_data *sdata;
- return ret;
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (!sdata->bss)
+ return -ENODEV;
+ mode = local->oper_hw_mode;
+ /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
+ * target_rate = X, rate->fixed = 1 means only rate X
+ * target_rate = X, rate->fixed = 0 means all rates <= X */
+ sdata->bss->max_ratectrl_rateidx = -1;
+ sdata->bss->force_unicast_rateidx = -1;
+ if (rate->value < 0)
+ return 0;
+ for (i=0; i< mode->num_rates; i++) {
+ struct ieee80211_rate *rates = &mode->rates[i];
+ int this_rate = rates->rate;
+
+ if (target_rate == this_rate) {
+ sdata->bss->max_ratectrl_rateidx = i;
+ if (rate->fixed)
+ sdata->bss->force_unicast_rateidx = i;
+ break;
+ }
+ }
+ return 0;
}
-
-static int ieee80211_ioctl_get_prism2_param(struct net_device *dev,
- struct iw_request_info *info,
- void *wrqu, char *extra)
+static int ieee80211_ioctl_giwrate(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *rate, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
struct ieee80211_sub_if_data *sdata;
- int *param = (int *) extra;
- int ret = 0;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type == IEEE80211_IF_TYPE_STA)
+ sta = sta_info_get(local, sdata->u.sta.bssid);
+ else
+ return -EOPNOTSUPP;
+ if (!sta)
+ return -ENODEV;
+ if (sta->txrate < local->oper_hw_mode->num_rates)
+ rate->value = local->oper_hw_mode->rates[sta->txrate].rate * 100000;
+ else
+ rate->value = 0;
+ sta_info_put(sta);
+ return 0;
+}
- switch (*param) {
- case PRISM2_PARAM_BEACON_INT:
- *param = local->hw.conf.beacon_int;
- break;
+static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *data, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ bool need_reconfig = 0;
- case PRISM2_PARAM_AP_BRIDGE_PACKETS:
- *param = local->bridge_packets;
- break;
+ if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
+ return -EINVAL;
+ if (data->txpower.flags & IW_TXPOW_RANGE)
+ return -EINVAL;
+ if (!data->txpower.fixed)
+ return -EINVAL;
- case PRISM2_PARAM_AP_AUTH_ALGS:
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- *param = sdata->u.sta.auth_algs;
- } else
- ret = -EOPNOTSUPP;
- break;
+ if (local->hw.conf.power_level != data->txpower.value) {
+ local->hw.conf.power_level = data->txpower.value;
+ need_reconfig = 1;
+ }
+ if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
+ local->hw.conf.radio_enabled = !(data->txpower.disabled);
+ need_reconfig = 1;
+ }
+ if (need_reconfig) {
+ ieee80211_hw_config(local);
+ /* The return value of hw_config is not of big interest here,
+ * as it doesn't say that it failed because of _this_ config
+ * change or something else. Ignore it. */
+ }
- case PRISM2_PARAM_DTIM_PERIOD:
- if (sdata->type != IEEE80211_IF_TYPE_AP)
- ret = -ENOENT;
- else
- *param = sdata->u.ap.dtim_period;
- break;
+ return 0;
+}
- case PRISM2_PARAM_IEEE_802_1X:
- *param = sdata->ieee802_1x;
- break;
+static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *data, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- case PRISM2_PARAM_ANTSEL_TX:
- *param = local->hw.conf.antenna_sel_tx;
- break;
+ data->txpower.fixed = 1;
+ data->txpower.disabled = !(local->hw.conf.radio_enabled);
+ data->txpower.value = local->hw.conf.power_level;
+ data->txpower.flags = IW_TXPOW_DBM;
- case PRISM2_PARAM_ANTSEL_RX:
- *param = local->hw.conf.antenna_sel_rx;
- break;
+ return 0;
+}
- case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
- *param = local->cts_protect_erp_frames;
- break;
+static int ieee80211_ioctl_siwrts(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *rts, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- case PRISM2_PARAM_DROP_UNENCRYPTED:
- *param = sdata->drop_unencrypted;
- break;
+ if (rts->disabled)
+ local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
+ else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
+ return -EINVAL;
+ else
+ local->rts_threshold = rts->value;
- case PRISM2_PARAM_PREAMBLE:
- *param = local->short_preamble;
- break;
+ /* If the wlan card performs RTS/CTS in hardware/firmware,
+ * configure it here */
- case PRISM2_PARAM_STAT_TIME:
- *param = local->stat_time;
- break;
- case PRISM2_PARAM_SHORT_SLOT_TIME:
- *param = !!(local->hw.conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME);
- break;
+ if (local->ops->set_rts_threshold)
+ local->ops->set_rts_threshold(local_to_hw(local),
+ local->rts_threshold);
- case PRISM2_PARAM_NEXT_MODE:
- *param = local->next_mode;
- break;
+ return 0;
+}
- case PRISM2_PARAM_ANTENNA_MODE:
- *param = local->hw.conf.antenna_mode;
- break;
+static int ieee80211_ioctl_giwrts(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *rts, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- case PRISM2_PARAM_BROADCAST_SSID:
- *param = !!(local->hw.conf.flags & IEEE80211_CONF_SSID_HIDDEN);
- break;
+ rts->value = local->rts_threshold;
+ rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
+ rts->fixed = 1;
- case PRISM2_PARAM_STA_ANTENNA_SEL:
- *param = local->sta_antenna_sel;
- break;
+ return 0;
+}
- case PRISM2_PARAM_RATE_CTRL_NUM_UP:
- *param = local->rate_ctrl_num_up;
- break;
- case PRISM2_PARAM_RATE_CTRL_NUM_DOWN:
- *param = local->rate_ctrl_num_down;
- break;
+static int ieee80211_ioctl_siwfrag(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *frag, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- case PRISM2_PARAM_TX_POWER_REDUCTION:
- *param = local->hw.conf.tx_power_reduction;
- break;
+ if (frag->disabled)
+ local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
+ else if (frag->value < 256 ||
+ frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
+ return -EINVAL;
+ else {
+ /* Fragment length must be even, so strip LSB. */
+ local->fragmentation_threshold = frag->value & ~0x1;
+ }
- case PRISM2_PARAM_EAPOL:
- *param = sdata->eapol;
- break;
+ /* If the wlan card performs fragmentation in hardware/firmware,
+ * configure it here */
- case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
- *param = local->key_tx_rx_threshold;
- break;
+ if (local->ops->set_frag_threshold)
+ local->ops->set_frag_threshold(
+ local_to_hw(local),
+ local->fragmentation_threshold);
- case PRISM2_PARAM_KEY_INDEX:
- if (!sdata->default_key)
- ret = -ENOENT;
- else if (sdata->default_key == sdata->keys[0])
- *param = 0;
- else if (sdata->default_key == sdata->keys[1])
- *param = 1;
- else if (sdata->default_key == sdata->keys[2])
- *param = 2;
- else if (sdata->default_key == sdata->keys[3])
- *param = 3;
- else
- ret = -ENOENT;
- break;
+ return 0;
+}
- case PRISM2_PARAM_DEFAULT_WEP_ONLY:
- *param = local->default_wep_only;
- break;
+static int ieee80211_ioctl_giwfrag(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *frag, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
- *param = local->wifi_wme_noack_test;
- break;
+ frag->value = local->fragmentation_threshold;
+ frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
+ frag->fixed = 1;
- case PRISM2_PARAM_ALLOW_BROADCAST_ALWAYS:
- *param = local->allow_broadcast_always;
- break;
+ return 0;
+}
- case PRISM2_PARAM_SCAN_FLAGS:
- *param = local->scan_flags;
- break;
- case PRISM2_PARAM_HW_MODES:
- *param = local->enabled_modes;
- break;
+static int ieee80211_ioctl_siwretry(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *retry, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- case PRISM2_PARAM_CREATE_IBSS:
- if (sdata->type != IEEE80211_IF_TYPE_IBSS)
- ret = -EINVAL;
- else
- *param = !!sdata->u.sta.create_ibss;
- break;
+ if (retry->disabled ||
+ (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
+ return -EINVAL;
- case PRISM2_PARAM_MIXED_CELL:
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
- ret = -EINVAL;
- else
- *param = !!sdata->u.sta.mixed_cell;
- break;
+ if (retry->flags & IW_RETRY_MAX)
+ local->long_retry_limit = retry->value;
+ else if (retry->flags & IW_RETRY_MIN)
+ local->short_retry_limit = retry->value;
+ else {
+ local->long_retry_limit = retry->value;
+ local->short_retry_limit = retry->value;
+ }
- case PRISM2_PARAM_KEY_MGMT:
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- ret = -EINVAL;
- else
- *param = sdata->u.sta.key_mgmt;
- break;
- case PRISM2_PARAM_WMM_ENABLED:
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
- ret = -EINVAL;
- else
- *param = !!sdata->u.sta.wmm_enabled;
- break;
- case PRISM2_PARAM_MGMT_IF:
- if (local->apdev)
- *param = local->apdev->ifindex;
- else
- ret = -ENOENT;
- break;
- case PRISM2_PARAM_USER_SPACE_MLME:
- *param = local->user_space_mlme;
- break;
+ if (local->ops->set_retry_limit) {
+ return local->ops->set_retry_limit(
+ local_to_hw(local),
+ local->short_retry_limit,
+ local->long_retry_limit);
+ }
- default:
- ret = -EOPNOTSUPP;
- break;
+ return 0;
+}
+
+
+static int ieee80211_ioctl_giwretry(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *retry, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ retry->disabled = 0;
+ if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
+ /* first return min value, iwconfig will ask max value
+ * later if needed */
+ retry->flags |= IW_RETRY_LIMIT;
+ retry->value = local->short_retry_limit;
+ if (local->long_retry_limit != local->short_retry_limit)
+ retry->flags |= IW_RETRY_MIN;
+ return 0;
+ }
+ if (retry->flags & IW_RETRY_MAX) {
+ retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
+ retry->value = local->long_retry_limit;
}
- return ret;
+ return 0;
}
static int ieee80211_ioctl_siwmlme(struct net_device *dev,
struct ieee80211_sub_if_data *sdata;
int idx, i, alg = ALG_WEP;
u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+ int remove = 0;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
idx--;
if (erq->flags & IW_ENCODE_DISABLED)
- alg = ALG_NONE;
+ remove = 1;
else if (erq->length == 0) {
/* No key data - just set the default TX key index */
- if (sdata->default_key != sdata->keys[idx]) {
- ieee80211_debugfs_key_remove_default(sdata);
- sdata->default_key = sdata->keys[idx];
- if (sdata->default_key)
- ieee80211_debugfs_key_add_default(sdata);
- }
+ ieee80211_set_default_key(sdata, idx);
return 0;
}
return ieee80211_set_encryption(
dev, bcaddr,
- idx, alg,
+ idx, alg, remove,
!sdata->default_key,
- NULL, keybuf, erq->length);
+ keybuf, erq->length);
}
return 0;
}
- memcpy(key, sdata->keys[idx]->key,
- min((int)erq->length, sdata->keys[idx]->keylen));
- erq->length = sdata->keys[idx]->keylen;
+ memcpy(key, sdata->keys[idx]->conf.key,
+ min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
+ erq->length = sdata->keys[idx]->conf.keylen;
erq->flags |= IW_ENCODE_ENABLED;
return 0;
}
-
-static int ieee80211_ioctl_siwgenie(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- return ieee80211_set_gen_ie(dev, extra, data->length);
-}
-
-
static int ieee80211_ioctl_siwauth(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *data, char *extra)
ret = -EINVAL;
else {
/*
- * TODO: sdata->u.sta.key_mgmt does not match with WE18
- * value completely; could consider modifying this to
- * be closer to WE18. For now, this value is not really
- * used for anything else than Privacy matching, so the
- * current code here should be more or less OK.
+ * Key management was set by wpa_supplicant,
+ * we only need this to associate to a network
+ * that has privacy enabled regardless of not
+ * having a key.
*/
- if (data->value & IW_AUTH_KEY_MGMT_802_1X) {
- sdata->u.sta.key_mgmt =
- IEEE80211_KEY_MGMT_WPA_EAP;
- } else if (data->value & IW_AUTH_KEY_MGMT_PSK) {
- sdata->u.sta.key_mgmt =
- IEEE80211_KEY_MGMT_WPA_PSK;
- } else {
- sdata->u.sta.key_mgmt =
- IEEE80211_KEY_MGMT_NONE;
- }
+ sdata->u.sta.key_management_enabled = !!data->value;
}
break;
case IW_AUTH_80211_AUTH_ALG:
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
- int alg, idx, i;
+ int uninitialized_var(alg), idx, i, remove = 0;
switch (ext->alg) {
case IW_ENCODE_ALG_NONE:
- alg = ALG_NONE;
+ remove = 1;
break;
case IW_ENCODE_ALG_WEP:
alg = ALG_WEP;
}
if (erq->flags & IW_ENCODE_DISABLED)
- alg = ALG_NONE;
+ remove = 1;
idx = erq->flags & IW_ENCODE_INDEX;
if (idx < 1 || idx > 4) {
idx--;
return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
+ remove,
ext->ext_flags &
IW_ENCODE_EXT_SET_TX_KEY,
- NULL, ext->key, ext->key_len);
-}
-
-
-static const struct iw_priv_args ieee80211_ioctl_priv[] = {
- { PRISM2_IOCTL_PRISM2_PARAM,
- IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "param" },
- { PRISM2_IOCTL_GET_PRISM2_PARAM,
- IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
- IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_param" },
-};
-
-
-int ieee80211_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct iwreq *wrq = (struct iwreq *) rq;
- int ret = 0;
-
- switch (cmd) {
- /* Private ioctls (iwpriv) that have not yet been converted
- * into new wireless extensions API */
- case PRISM2_IOCTL_HOSTAPD:
- if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
- else ret = ieee80211_ioctl_priv_hostapd(dev, &wrq->u.data);
- break;
- default:
- ret = -EOPNOTSUPP;
- break;
- }
-
- return ret;
+ ext->key, ext->key_len);
}
(iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
(iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
(iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
- iw_handler_set_spy, /* SIOCSIWSPY */
- iw_handler_get_spy, /* SIOCGIWSPY */
- iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
- iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
+ (iw_handler) NULL, /* SIOCSIWSPY */
+ (iw_handler) NULL, /* SIOCGIWSPY */
+ (iw_handler) NULL, /* SIOCSIWTHRSPY */
+ (iw_handler) NULL, /* SIOCGIWTHRSPY */
(iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */
(iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
(iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */
(iw_handler) NULL, /* SIOCGIWNICKN */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* -- hole -- */
- (iw_handler) NULL, /* SIOCSIWRATE */
+ (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */
(iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */
(iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */
(iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */
(iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */
(iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */
- (iw_handler) NULL, /* SIOCSIWTXPOW */
- (iw_handler) NULL, /* SIOCGIWTXPOW */
+ (iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */
+ (iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */
(iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */
(iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */
(iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */
(iw_handler) NULL, /* -- hole -- */
};
-static const iw_handler ieee80211_private_handler[] =
-{ /* SIOCIWFIRSTPRIV + */
- (iw_handler) ieee80211_ioctl_prism2_param, /* 0 */
- (iw_handler) ieee80211_ioctl_get_prism2_param, /* 1 */
-};
-
const struct iw_handler_def ieee80211_iw_handler_def =
{
.num_standard = ARRAY_SIZE(ieee80211_handler),
- .num_private = ARRAY_SIZE(ieee80211_private_handler),
- .num_private_args = ARRAY_SIZE(ieee80211_ioctl_priv),
.standard = (iw_handler *) ieee80211_handler,
- .private = (iw_handler *) ieee80211_private_handler,
- .private_args = (struct iw_priv_args *) ieee80211_ioctl_priv,
.get_wireless_stats = ieee80211_get_wireless_stats,
};
#define IEEE80211_KEY_H
#include <linux/types.h>
-#include <linux/kref.h>
+#include <linux/list.h>
#include <linux/crypto.h>
#include <net/mac80211.h>
#define NUM_RX_DATA_QUEUES 17
+struct ieee80211_local;
+struct ieee80211_sub_if_data;
+struct sta_info;
+
+#define KEY_FLAG_UPLOADED_TO_HARDWARE (1<<0)
+
struct ieee80211_key {
- struct kref kref;
+ struct ieee80211_local *local;
+ struct ieee80211_sub_if_data *sdata;
+ struct sta_info *sta;
+
+ struct list_head list;
+
+ unsigned int flags;
- int hw_key_idx; /* filled and used by low-level driver */
- ieee80211_key_alg alg;
union {
struct {
/* last used TSC */
u8 rx_crypto_buf[6 * AES_BLOCK_LEN];
} ccmp;
} u;
- int tx_rx_count; /* number of times this key has been used */
- int keylen;
- /* if the low level driver can provide hardware acceleration it should
- * clear this flag */
- unsigned int force_sw_encrypt:1;
- unsigned int default_tx_key:1; /* This key is the new default TX key
- * (used only for broadcast keys). */
- s8 keyidx; /* WEP key index */
+ /* number of times this key has been used */
+ int tx_rx_count;
#ifdef CONFIG_MAC80211_DEBUGFS
struct {
struct dentry *stalink;
struct dentry *dir;
struct dentry *keylen;
- struct dentry *force_sw_encrypt;
+ struct dentry *flags;
struct dentry *keyidx;
struct dentry *hw_key_idx;
struct dentry *tx_rx_count;
struct dentry *rx_spec;
struct dentry *replays;
struct dentry *key;
+ struct dentry *ifindex;
} debugfs;
#endif
- u8 key[0];
+ /*
+ * key config, must be last because it contains key
+ * material as variable length member
+ */
+ struct ieee80211_key_conf conf;
};
+struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta,
+ enum ieee80211_key_alg alg,
+ int idx,
+ size_t key_len,
+ const u8 *key_data);
+void ieee80211_key_free(struct ieee80211_key *key);
+void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx);
+void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata);
+void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata);
+void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata);
+
#endif /* IEEE80211_KEY_H */
led_trigger_event(local->tx_led, LED_FULL);
}
+void ieee80211_led_assoc(struct ieee80211_local *local, bool associated)
+{
+ if (unlikely(!local->assoc_led))
+ return;
+ if (associated)
+ led_trigger_event(local->assoc_led, LED_FULL);
+ else
+ led_trigger_event(local->assoc_led, LED_OFF);
+}
+
void ieee80211_led_init(struct ieee80211_local *local)
{
local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
- if (!local->rx_led)
- return;
- snprintf(local->rx_led_name, sizeof(local->rx_led_name),
- "%srx", wiphy_name(local->hw.wiphy));
- local->rx_led->name = local->rx_led_name;
- if (led_trigger_register(local->rx_led)) {
- kfree(local->rx_led);
- local->rx_led = NULL;
+ if (local->rx_led) {
+ snprintf(local->rx_led_name, sizeof(local->rx_led_name),
+ "%srx", wiphy_name(local->hw.wiphy));
+ local->rx_led->name = local->rx_led_name;
+ if (led_trigger_register(local->rx_led)) {
+ kfree(local->rx_led);
+ local->rx_led = NULL;
+ }
}
local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
- if (!local->tx_led)
- return;
- snprintf(local->tx_led_name, sizeof(local->tx_led_name),
- "%stx", wiphy_name(local->hw.wiphy));
- local->tx_led->name = local->tx_led_name;
- if (led_trigger_register(local->tx_led)) {
- kfree(local->tx_led);
- local->tx_led = NULL;
+ if (local->tx_led) {
+ snprintf(local->tx_led_name, sizeof(local->tx_led_name),
+ "%stx", wiphy_name(local->hw.wiphy));
+ local->tx_led->name = local->tx_led_name;
+ if (led_trigger_register(local->tx_led)) {
+ kfree(local->tx_led);
+ local->tx_led = NULL;
+ }
+ }
+
+ local->assoc_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
+ if (local->assoc_led) {
+ snprintf(local->assoc_led_name, sizeof(local->assoc_led_name),
+ "%sassoc", wiphy_name(local->hw.wiphy));
+ local->assoc_led->name = local->assoc_led_name;
+ if (led_trigger_register(local->assoc_led)) {
+ kfree(local->assoc_led);
+ local->assoc_led = NULL;
+ }
}
}
void ieee80211_led_exit(struct ieee80211_local *local)
{
+ if (local->assoc_led) {
+ led_trigger_unregister(local->assoc_led);
+ kfree(local->assoc_led);
+ }
if (local->tx_led) {
led_trigger_unregister(local->tx_led);
kfree(local->tx_led);
}
}
+char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ if (local->assoc_led)
+ return local->assoc_led_name;
+ return NULL;
+}
+EXPORT_SYMBOL(__ieee80211_get_assoc_led_name);
+
char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
#ifdef CONFIG_MAC80211_LEDS
extern void ieee80211_led_rx(struct ieee80211_local *local);
extern void ieee80211_led_tx(struct ieee80211_local *local, int q);
+extern void ieee80211_led_assoc(struct ieee80211_local *local,
+ bool associated);
extern void ieee80211_led_init(struct ieee80211_local *local);
extern void ieee80211_led_exit(struct ieee80211_local *local);
#else
static inline void ieee80211_led_tx(struct ieee80211_local *local, int q)
{
}
+static inline void ieee80211_led_assoc(struct ieee80211_local *local,
+ bool associated)
+{
+}
static inline void ieee80211_led_init(struct ieee80211_local *local)
{
}
*/
#include <linux/kernel.h>
+#include <linux/rtnetlink.h>
#include "ieee80211_rate.h"
#include "ieee80211_i.h"
{
struct rate_control_alg *alg;
- alg = kmalloc(sizeof(*alg), GFP_KERNEL);
+ alg = kzalloc(sizeof(*alg), GFP_KERNEL);
if (alg == NULL) {
return -ENOMEM;
}
- memset(alg, 0, sizeof(*alg));
alg->ops = ops;
mutex_lock(&rate_ctrl_mutex);
{
kref_put(&ref->kref, rate_control_release);
}
+
+int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
+ const char *name)
+{
+ struct rate_control_ref *ref, *old;
+
+ ASSERT_RTNL();
+ if (local->open_count || netif_running(local->mdev))
+ return -EBUSY;
+
+ ref = rate_control_alloc(name, local);
+ if (!ref) {
+ printk(KERN_WARNING "%s: Failed to select rate control "
+ "algorithm\n", wiphy_name(local->hw.wiphy));
+ return -ENOENT;
+ }
+
+ old = local->rate_ctrl;
+ local->rate_ctrl = ref;
+ if (old) {
+ rate_control_put(old);
+ sta_info_flush(local, NULL);
+ }
+
+ printk(KERN_DEBUG "%s: Selected rate control "
+ "algorithm '%s'\n", wiphy_name(local->hw.wiphy),
+ ref->ops->name);
+
+
+ return 0;
+}
+
+void rate_control_deinitialize(struct ieee80211_local *local)
+{
+ struct rate_control_ref *ref;
+
+ ref = local->rate_ctrl;
+ local->rate_ctrl = NULL;
+ rate_control_put(ref);
+}
/* parameters from the caller to rate_control_get_rate(): */
struct ieee80211_hw_mode *mode;
- int mgmt_data; /* this is data frame that is used for management
- * (e.g., IEEE 802.1X EAPOL) */
u16 ethertype;
};
#endif
}
+
+/* functions for rate control related to a device */
+int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
+ const char *name);
+void rate_control_deinitialize(struct ieee80211_local *local);
+
#endif /* IEEE80211_RATE_H */
#include <linux/wireless.h>
#include <linux/random.h>
#include <linux/etherdevice.h>
-#include <linux/rtnetlink.h>
#include <net/iw_handler.h>
#include <asm/types.h>
#include <net/mac80211.h>
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
-#include "hostapd_ioctl.h"
+#include "ieee80211_led.h"
#define IEEE80211_AUTH_TIMEOUT (HZ / 5)
#define IEEE80211_AUTH_MAX_TRIES 3
#define ERP_INFO_USE_PROTECTION BIT(1)
-/* mgmt header + 1 byte action code */
-#define IEEE80211_MIN_ACTION_SIZE (24 + 1)
-
static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
u8 *ssid, size_t ssid_len);
static struct ieee80211_sta_bss *
/* Parsed Information Elements */
struct ieee802_11_elems {
+ /* pointers to IEs */
u8 *ssid;
- u8 ssid_len;
u8 *supp_rates;
- u8 supp_rates_len;
u8 *fh_params;
- u8 fh_params_len;
u8 *ds_params;
- u8 ds_params_len;
u8 *cf_params;
- u8 cf_params_len;
u8 *tim;
- u8 tim_len;
u8 *ibss_params;
- u8 ibss_params_len;
u8 *challenge;
- u8 challenge_len;
u8 *wpa;
- u8 wpa_len;
u8 *rsn;
- u8 rsn_len;
u8 *erp_info;
- u8 erp_info_len;
- u8 *ht_cap_param;
- u8 ht_cap_param_len;
- u8 *ht_extra_param;
- u8 ht_extra_param_len;
u8 *ext_supp_rates;
- u8 ext_supp_rates_len;
u8 *wmm_info;
- u8 wmm_info_len;
u8 *wmm_param;
+
+ /* length of them, respectively */
+ u8 ssid_len;
+ u8 supp_rates_len;
+ u8 fh_params_len;
+ u8 ds_params_len;
+ u8 cf_params_len;
+ u8 tim_len;
+ u8 ibss_params_len;
+ u8 challenge_len;
+ u8 wpa_len;
+ u8 rsn_len;
+ u8 erp_info_len;
+ u8 ext_supp_rates_len;
+ u8 wmm_info_len;
u8 wmm_param_len;
- u8 *tspec;
- u8 tspec_len;
};
-typedef enum { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 } ParseRes;
+enum ParseRes { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 };
-
-static ParseRes ieee802_11_parse_elems(u8 *start, size_t len,
- struct ieee802_11_elems *elems)
+static enum ParseRes ieee802_11_parse_elems(u8 *start, size_t len,
+ struct ieee802_11_elems *elems)
{
size_t left = len;
u8 *pos = start;
if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
pos[2] == 0xf2) {
/* Microsoft OUI (00:50:F2) */
- if (pos[3] == WIFI_OUI_TYPE_WPA) {
+ if (pos[3] == 1) {
/* OUI Type 1 - WPA IE */
elems->wpa = pos;
elems->wpa_len = elen;
- } else if (elen >= 5 &&
- pos[3] == WIFI_OUI_TYPE_WMM) {
- switch (pos[4]) {
- case WIFI_OUI_STYPE_WMM_INFO:
+ } else if (elen >= 5 && pos[3] == 2) {
+ if (pos[4] == 0) {
elems->wmm_info = pos;
elems->wmm_info_len = elen;
- break;
- case WIFI_OUI_STYPE_WMM_PARAM:
+ } else if (pos[4] == 1) {
elems->wmm_param = pos;
elems->wmm_param_len = elen;
- break;
- case WIFI_OUI_STYPE_WMM_TSPEC:
- if (elen != 61) {
- printk(KERN_ERR "Wrong "
- "TSPEC size.\n");
- break;
- }
- elems->tspec = pos + 6;
- elems->tspec_len = elen - 6;
- break;
- default:
- //printk(KERN_ERR "Unsupported "
- // "WiFi OUI %d\n", pos[4]);
- break;
}
}
}
elems->ext_supp_rates = pos;
elems->ext_supp_rates_len = elen;
break;
- case WLAN_EID_HT_CAPABILITY:
- elems->ht_cap_param = pos;
- elems->ht_cap_param_len = elen;
- break;
- case WLAN_EID_HT_EXTRA_INFO:
- elems->ht_extra_param = pos;
- elems->ht_extra_param_len = elen;
- break;
- case WLAN_EID_TSPEC:
- if (elen != 55) {
- printk(KERN_ERR "Wrong TSPEC size.\n");
- break;
- }
- elems->tspec = pos;
- elems->tspec_len = elen;
- break;
default:
#if 0
printk(KERN_DEBUG "IEEE 802.11 element parse ignored "
}
+static void ieee80211_handle_erp_ie(struct net_device *dev, u8 erp_value)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ int use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0;
+ int preamble_mode = (erp_value & WLAN_ERP_BARKER_PREAMBLE) != 0;
+ u8 changes = 0;
+
+ if (use_protection != !!(sdata->flags & IEEE80211_SDATA_USE_PROTECTION)) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: CTS protection %s (BSSID="
+ MAC_FMT ")\n",
+ dev->name,
+ use_protection ? "enabled" : "disabled",
+ MAC_ARG(ifsta->bssid));
+ }
+ if (use_protection)
+ sdata->flags |= IEEE80211_SDATA_USE_PROTECTION;
+ else
+ sdata->flags &= ~IEEE80211_SDATA_USE_PROTECTION;
+ changes |= IEEE80211_ERP_CHANGE_PROTECTION;
+ }
+
+ if (preamble_mode != !(sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE)) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: switched to %s barker preamble"
+ " (BSSID=" MAC_FMT ")\n",
+ dev->name,
+ (preamble_mode == WLAN_ERP_PREAMBLE_SHORT) ?
+ "short" : "long",
+ MAC_ARG(ifsta->bssid));
+ }
+ if (preamble_mode)
+ sdata->flags &= ~IEEE80211_SDATA_SHORT_PREAMBLE;
+ else
+ sdata->flags |= IEEE80211_SDATA_SHORT_PREAMBLE;
+ changes |= IEEE80211_ERP_CHANGE_PREAMBLE;
+ }
+
+ if (changes)
+ ieee80211_erp_info_change_notify(dev, changes);
+}
+
+
static void ieee80211_sta_send_associnfo(struct net_device *dev,
struct ieee80211_if_sta *ifsta)
{
return;
buf = kmalloc(50 + 2 * (ifsta->assocreq_ies_len +
- ifsta->assocresp_ies_len), GFP_ATOMIC);
+ ifsta->assocresp_ies_len), GFP_KERNEL);
if (!buf)
return;
static void ieee80211_set_associated(struct net_device *dev,
- struct ieee80211_if_sta *ifsta, int assoc)
+ struct ieee80211_if_sta *ifsta,
+ bool assoc)
{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
union iwreq_data wrqu;
- if (ifsta->associated == assoc)
+ if (!!(ifsta->flags & IEEE80211_STA_ASSOCIATED) == assoc)
return;
- ifsta->associated = assoc;
-
if (assoc) {
struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_sta_bss *bss;
+
+ ifsta->flags |= IEEE80211_STA_ASSOCIATED;
+
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->type != IEEE80211_IF_TYPE_STA)
return;
+
+ bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
+ if (bss) {
+ if (bss->has_erp_value)
+ ieee80211_handle_erp_ie(dev, bss->erp_value);
+ ieee80211_rx_bss_put(dev, bss);
+ }
+
netif_carrier_on(dev);
- ifsta->prev_bssid_set = 1;
+ ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN);
memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN);
ieee80211_sta_send_associnfo(dev, ifsta);
} else {
+ ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
+
netif_carrier_off(dev);
+ ieee80211_reset_erp_info(dev);
memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
}
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
ifsta->last_probe = jiffies;
+ ieee80211_led_assoc(local, assoc);
}
static void ieee80211_set_disassoc(struct net_device *dev,
pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
pkt_data->ifindex = sdata->dev->ifindex;
- pkt_data->mgmt_iface = (sdata->type == IEEE80211_IF_TYPE_MGMT);
- pkt_data->do_not_encrypt = !encrypt;
+ if (!encrypt)
+ pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
dev_queue_xmit(skb);
}
u16 capab;
struct ieee80211_sta_bss *bss;
int wmm = 0;
- int ht_enabled = 0;
skb = dev_alloc_skb(local->hw.extra_tx_headroom +
sizeof(*mgmt) + 200 + ifsta->extra_ie_len +
capab |= WLAN_CAPABILITY_PRIVACY;
if (bss->wmm_ie) {
wmm = 1;
-
- ht_enabled = 1;
}
ieee80211_rx_bss_put(dev, bss);
}
memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- if (ifsta->prev_bssid_set) {
+ if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) {
skb_put(skb, 10);
mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
IEEE80211_STYPE_REASSOC_REQ);
*pos++ = len;
for (i = 0; i < len; i++) {
int rate = mode->rates[i].rate;
- if (mode->mode == MODE_ATHEROS_TURBO)
- rate /= 2;
*pos++ = (u8) (rate / 5);
}
*pos++ = mode->num_rates - len;
for (i = len; i < mode->num_rates; i++) {
int rate = mode->rates[i].rate;
- if (mode->mode == MODE_ATHEROS_TURBO)
- rate /= 2;
*pos++ = (u8) (rate / 5);
}
}
memcpy(pos, ifsta->extra_ie, ifsta->extra_ie_len);
}
- if (wmm && ifsta->wmm_enabled) {
+ if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
pos = skb_put(skb, 9);
*pos++ = WLAN_EID_VENDOR_SPECIFIC;
*pos++ = 7; /* len */
*pos++ = 0;
}
- /* if low level driver supports 11n, fill in 11n IE */
- if (ht_enabled && ifsta->ht_enabled && local->ops->get_ht_capab) {
- pos = skb_put(skb, sizeof(struct ieee80211_ht_capability)+2);
- *pos++ = WLAN_EID_HT_CAPABILITY;
- *pos++ = sizeof(struct ieee80211_ht_capability);
- memset(pos, 0, sizeof(struct ieee80211_ht_capability));
- local->ops->get_ht_capab(local_to_hw(local),
- (struct ieee80211_ht_capability *)pos);
- }
-
kfree(ifsta->assocreq_ies);
ifsta->assocreq_ies_len = (skb->data + skb->len) - ies;
- ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_ATOMIC);
+ ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_KERNEL);
if (ifsta->assocreq_ies)
memcpy(ifsta->assocreq_ies, ies, ifsta->assocreq_ies_len);
}
-static int ieee80211_ts_index(u8 direction)
-{
- if (direction == WLAN_TSINFO_DOWNLINK ||
- direction == WLAN_TSINFO_DIRECTLINK)
- return STA_TS_DOWNLINK;
- return STA_TS_UPLINK; /* UP and Bidirectional LINK */
-}
-
-
-void ieee80211_send_addts(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_elem_tspec *tspec)
-{
- struct ieee80211_mgmt *mgmt;
- struct sk_buff *skb;
- static u8 token;
- struct ieee80211_elem_tspec *ptspec;
- u8 *pos;
-
- skb = dev_alloc_skb(sizeof(*mgmt) + sizeof(*tspec));
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for addts "
- "frame\n", dev->name);
- return;
- }
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
-
- skb_put(skb, 1 + sizeof(mgmt->u.action.u.addts_req));
- mgmt->u.action.category = WLAN_CATEGORY_QOS;
- mgmt->u.action.u.addts_req.action_code = WLAN_ACTION_QOS_ADDTS_REQ;
- mgmt->u.action.u.addts_req.dialog_token = ++token % 127;
-
- skb_put(skb, 2 + sizeof(*tspec));
- pos = mgmt->u.action.u.addts_req.variable;
- pos[0] = WLAN_EID_TSPEC;
- pos[1] = sizeof(*tspec);
- pos += 2;
- ptspec = (struct ieee80211_elem_tspec *)pos;
- memcpy(ptspec, tspec, sizeof(*tspec));
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-void wmm_send_addts(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_elem_tspec *tspec)
-{
- struct ieee80211_mgmt *mgmt;
- struct sk_buff *skb;
- static u8 token;
- struct ieee80211_elem_tspec *ptspec;
- u8 *pos;
-
- skb = dev_alloc_skb(sizeof(*mgmt) + 2 + 6 + sizeof(*tspec));
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for addts "
- "frame\n", dev->name);
- return;
- }
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
-
- skb_put(skb, 1 + sizeof(mgmt->u.action.u.wme_action));
- mgmt->u.action.category = WLAN_CATEGORY_WMM;
- mgmt->u.action.u.wme_action.action_code = WLAN_ACTION_QOS_ADDTS_REQ;
- mgmt->u.action.u.wme_action.dialog_token = ++token % 127;
- mgmt->u.action.u.wme_action.status_code = 0;
-
- skb_put(skb, 2 + 6 + sizeof(*tspec));
- pos = mgmt->u.action.u.wme_action.variable;
- pos[0] = WLAN_EID_GENERIC;
- pos[1] = 61;
- pos += 2;
- pos[0] = 0x00; pos[1] = 0x50; pos[2] = 0xf2; /* Wi-Fi OUI (00:50:F2)*/
- pos += 3;
- pos[0] = WIFI_OUI_TYPE_WMM;
- pos[1] = WIFI_OUI_STYPE_WMM_TSPEC;
- pos[2] = 1; /* Version */
- pos += 3;
- ptspec = (struct ieee80211_elem_tspec *)pos;
- memcpy(ptspec, tspec, sizeof(*tspec));
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-void ieee80211_send_delts(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_elem_tspec *tp)
-{
- struct ieee80211_mgmt *mgmt;
- struct sk_buff *skb;
- u8 tsid = IEEE80211_TSINFO_TSID(tp->ts_info);
- u8 direction = IEEE80211_TSINFO_DIR(tp->ts_info);
- u16 medium_time = le16_to_cpu(tp->medium_time);
- u8 index = ieee80211_ts_index(direction);
-
- if (ifsta->ts_data[tsid][index].status == TS_STATUS_UNUSED) {
- printk(KERN_DEBUG "%s: Trying to delete an ACM disabled TS "
- "(%u:%u)\n", dev->name, tsid, direction);
- return;
- }
- skb = dev_alloc_skb(sizeof(*mgmt));
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for delts "
- "frame\n", dev->name);
- return;
- }
-
- /* recompute admitted time */
- ifsta->ts_data[tsid][index].admitted_time_usec -=
- ifsta->dot11EDCAAveragingPeriod * medium_time * 32;
- if ((s32)(ifsta->ts_data[tsid][index].admitted_time_usec) < 0)
- ifsta->ts_data[tsid][index].admitted_time_usec = 0;
-
- ifsta->ts_data[tsid][index].status = TS_STATUS_INACTIVE;
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
- skb_put(skb, 1 + sizeof(mgmt->u.action.u.delts));
- mgmt->u.action.category = WLAN_CATEGORY_QOS;
- mgmt->u.action.u.delts.action_code = WLAN_ACTION_QOS_DELTS;
- mgmt->u.action.u.delts.reason_code = 0;
- memset(&mgmt->u.action.u.delts.ts_info, 0,
- sizeof(struct ieee80211_ts_info));
-
- IEEE80211_SET_TSINFO_TSID(tp->ts_info, tsid);
- IEEE80211_SET_TSINFO_DIR(tp->ts_info, direction);
- IEEE80211_SET_TSINFO_POLICY(tp->ts_info, WLAN_TSINFO_EDCA);
- IEEE80211_SET_TSINFO_APSD(tp->ts_info, WLAN_TSINFO_PSB_LEGACY);
- IEEE80211_SET_TSINFO_UP(tp->ts_info, ifsta->ts_data[tsid][index].up);
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-void wmm_send_delts(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_elem_tspec *tp)
-{
- struct ieee80211_mgmt *mgmt;
- struct ieee80211_elem_tspec *tspec;
- struct sk_buff *skb;
- u8 tsid = IEEE80211_TSINFO_TSID(tp->ts_info);
- u8 direction = IEEE80211_TSINFO_DIR(tp->ts_info);
- u16 medium_time = le16_to_cpu(tp->medium_time);
- u8 index = ieee80211_ts_index(direction);
- u8 *pos;
-
- if (ifsta->ts_data[tsid][index].status == TS_STATUS_UNUSED) {
- printk(KERN_DEBUG "%s: Tring to delete a non-Actived TS "
- "(%u %u)\n", dev->name, tsid, direction);
- return;
- }
- skb = dev_alloc_skb(sizeof(*mgmt) + 2 + 6 + sizeof(*tspec));
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for delts "
- "frame\n", dev->name);
- return;
- }
-
- /* recompute admitted time */
- ifsta->ts_data[tsid][index].admitted_time_usec -=
- ifsta->dot11EDCAAveragingPeriod * medium_time * 32;
- if ((s32)(ifsta->ts_data[tsid][index].admitted_time_usec < 0))
- ifsta->ts_data[tsid][index].admitted_time_usec = 0;
-
- ifsta->ts_data[tsid][index].status = TS_STATUS_INACTIVE;
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
-
- skb_put(skb, 1 + sizeof(mgmt->u.action.u.wme_action));
- mgmt->u.action.category = WLAN_CATEGORY_WMM;
- mgmt->u.action.u.wme_action.action_code = WLAN_ACTION_QOS_DELTS;
- mgmt->u.action.u.wme_action.dialog_token = 0;
- mgmt->u.action.u.wme_action.status_code = 0;
-
- skb_put(skb, 2 + 6 + sizeof(*tspec));
- pos = mgmt->u.action.u.wme_action.variable;
- pos[0] = WLAN_EID_GENERIC;
- pos[1] = 61;
- pos += 2;
- pos[0] = 0x00; pos[1] = 0x50; pos[2] = 0xf2; /* Wi-Fi OUI (00:50:F2)*/
- pos += 3;
- pos[0] = WIFI_OUI_TYPE_WMM;
- pos[1] = WIFI_OUI_STYPE_WMM_TSPEC;
- pos[2] = 1; /* Version */
- pos += 3;
- tspec = (struct ieee80211_elem_tspec *)pos;
- memset(tspec, 0, sizeof(*tspec));
-
- IEEE80211_SET_TSINFO_TSID(tspec->ts_info, tsid);
- IEEE80211_SET_TSINFO_DIR(tspec->ts_info, direction);
- IEEE80211_SET_TSINFO_POLICY(tspec->ts_info, WLAN_TSINFO_EDCA);
- IEEE80211_SET_TSINFO_APSD(tspec->ts_info, WLAN_TSINFO_PSB_LEGACY);
- IEEE80211_SET_TSINFO_UP(tspec->ts_info, ifsta->ts_data[tsid][index].up);
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-void ieee80211_send_dls_req(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- u8 *addr, u16 timeout)
-{
- struct ieee80211_hw_mode *mode;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- u8 *pos, *supp_rates, *esupp_rates = NULL;
- int i;
-
- skb = dev_alloc_skb(sizeof(*mgmt) + 200 /* rates + ext_rates Size */);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for DLS REQ "
- "frame\n", dev->name);
- return;
- }
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
-
- skb_put(skb, 1 + sizeof(mgmt->u.action.u.dls_req));
- mgmt->u.action.category = WLAN_CATEGORY_DLS;
- mgmt->u.action.u.dls_req.action_code = WLAN_ACTION_DLS_REQ;
- memcpy(mgmt->u.action.u.dls_req.dest, addr, ETH_ALEN);
- memcpy(mgmt->u.action.u.dls_req.src, dev->dev_addr, ETH_ALEN);
- mgmt->u.action.u.dls_req.capab_info = cpu_to_le16(ifsta->ap_capab);
- mgmt->u.action.u.dls_req.timeout = cpu_to_le16(timeout);
-
- /* Add supported rates and extended supported rates */
- supp_rates = skb_put(skb, 2);
- supp_rates[0] = WLAN_EID_SUPP_RATES;
- supp_rates[1] = 0;
- mode = local->oper_hw_mode;
- for (i = 0; i < mode->num_rates; i++) {
- struct ieee80211_rate *rate = &mode->rates[i];
- if (!(rate->flags & IEEE80211_RATE_SUPPORTED))
- continue;
- if (esupp_rates) {
- pos = skb_put(skb, 1);
- esupp_rates[1]++;
- } else if (supp_rates[1] == 8) {
- esupp_rates = skb_put(skb, 3);
- esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES;
- esupp_rates[1] = 1;
- pos = &esupp_rates[2];
- } else {
- pos = skb_put(skb, 1);
- supp_rates[1]++;
- }
- if (local->hw.conf.phymode == MODE_ATHEROS_TURBO)
- *pos = rate->rate / 10;
- else
- *pos = rate->rate / 5;
- }
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-static void ieee80211_send_dls_resp(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- u8 *mac_addr, u16 status)
-{
- struct ieee80211_hw_mode *mode;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- u8 *pos, *supp_rates, *esupp_rates = NULL;
- int i;
-
- skb = dev_alloc_skb(sizeof(*mgmt) + 200 /* rates + ext_rates Size */);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for dls resp "
- "frame\n", dev->name);
- return;
- }
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
-
- skb_put(skb, 1 + sizeof(mgmt->u.action.u.dls_resp));
- mgmt->u.action.category = WLAN_CATEGORY_DLS;
- mgmt->u.action.u.dls_resp.action_code = WLAN_ACTION_DLS_RESP;
- memcpy(mgmt->u.action.u.dls_resp.dest, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->u.action.u.dls_resp.src, mac_addr, ETH_ALEN);
- mgmt->u.action.u.dls_resp.status_code = cpu_to_le16(status);
-
- if (!mgmt->u.action.u.dls_resp.status_code) {
- ieee80211_sta_tx(dev, skb, 0);
- return;
- }
-
- /* Add capability information */
- pos = skb_put(skb, 2);
- *(__le16 *)pos = cpu_to_le16(ifsta->ap_capab);
-
- /* Add supported rates and extended supported rates */
- supp_rates = skb_put(skb, 2);
- supp_rates[0] = WLAN_EID_SUPP_RATES;
- supp_rates[1] = 0;
- mode = local->oper_hw_mode;
- for (i = 0; i < mode->num_rates; i++) {
- struct ieee80211_rate *rate = &mode->rates[i];
- if (!(rate->flags & IEEE80211_RATE_SUPPORTED))
- continue;
- if (esupp_rates) {
- pos = skb_put(skb, 1);
- esupp_rates[1]++;
- } else if (supp_rates[1] == 8) {
- esupp_rates = skb_put(skb, 3);
- esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES;
- esupp_rates[1] = 1;
- pos = &esupp_rates[2];
- } else {
- pos = skb_put(skb, 1);
- supp_rates[1]++;
- }
- if (local->hw.conf.phymode == MODE_ATHEROS_TURBO)
- *pos = rate->rate / 10;
- else
- *pos = rate->rate / 5;
- }
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-void ieee80211_send_dls_teardown(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- u8 *mac_addr, u16 reason)
-{
- struct ieee80211_mgmt *mgmt;
- struct sk_buff *skb;
-
- skb = dev_alloc_skb(sizeof(*mgmt));
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for DLS "
- "Teardown frame\n", dev->name);
- return;
- }
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
- skb_put(skb, 1 + sizeof(mgmt->u.action.u.dls_teardown));
- mgmt->u.action.category = WLAN_CATEGORY_DLS;
- mgmt->u.action.u.dls_teardown.action_code = WLAN_ACTION_DLS_TEARDOWN;
- memcpy(mgmt->u.action.u.dls_teardown.dest, mac_addr, ETH_ALEN);
- memcpy(mgmt->u.action.u.dls_teardown.src, dev->dev_addr, ETH_ALEN);
- mgmt->u.action.u.dls_teardown.reason_code = cpu_to_le16(reason);
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
static int ieee80211_privacy_mismatch(struct net_device *dev,
struct ieee80211_if_sta *ifsta)
{
struct ieee80211_sta_bss *bss;
int res = 0;
- if (!ifsta || ifsta->mixed_cell ||
- ifsta->key_mgmt != IEEE80211_KEY_MGMT_NONE)
+ if (!ifsta || (ifsta->flags & IEEE80211_STA_MIXED_CELL) ||
+ ifsta->key_management_enabled)
return 0;
bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
disassoc = 0;
if (time_after(jiffies,
sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
- if (ifsta->probereq_poll) {
+ if (ifsta->flags & IEEE80211_STA_PROBEREQ_POLL) {
printk(KERN_DEBUG "%s: No ProbeResp from "
"current AP " MAC_FMT " - assume out of "
"range\n",
dev->name, MAC_ARG(ifsta->bssid));
disassoc = 1;
- sta_info_free(sta, 0);
- ifsta->probereq_poll = 0;
- } else {
+ sta_info_free(sta);
+ } else
ieee80211_send_probe_req(dev, ifsta->bssid,
local->scan_ssid,
local->scan_ssid_len);
- ifsta->probereq_poll = 1;
- }
+ ifsta->flags ^= IEEE80211_STA_PROBEREQ_POLL;
} else {
- ifsta->probereq_poll = 0;
+ ifsta->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
if (time_after(jiffies, ifsta->last_probe +
IEEE80211_PROBE_INTERVAL)) {
ifsta->last_probe = jiffies;
pos = skb_put(skb, 1);
supp_rates[1]++;
}
- if (mode->mode == MODE_ATHEROS_TURBO)
- *pos = rate->rate / 10;
- else
- *pos = rate->rate / 5;
+ *pos = rate->rate / 5;
}
ieee80211_sta_tx(dev, skb, 0);
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (!sdata || !sdata->default_key ||
- sdata->default_key->alg != ALG_WEP)
+ sdata->default_key->conf.alg != ALG_WEP)
return 0;
return 1;
}
struct ieee80211_if_sta *ifsta)
{
printk(KERN_DEBUG "%s: authenticated\n", dev->name);
- ifsta->authenticated = 1;
+ ifsta->flags |= IEEE80211_STA_AUTHENTICATED;
ieee80211_associate(dev, ifsta);
}
" (reason=%d)\n",
dev->name, MAC_ARG(mgmt->sa), reason_code);
- if (ifsta->authenticated) {
+ if (ifsta->flags & IEEE80211_STA_AUTHENTICATED) {
printk(KERN_DEBUG "%s: deauthenticated\n", dev->name);
}
}
ieee80211_set_disassoc(dev, ifsta, 1);
- ifsta->authenticated = 0;
+ ifsta->flags &= ~IEEE80211_STA_AUTHENTICATED;
}
" (reason=%d)\n",
dev->name, MAC_ARG(mgmt->sa), reason_code);
- if (ifsta->associated)
+ if (ifsta->flags & IEEE80211_STA_ASSOCIATED)
printk(KERN_DEBUG "%s: disassociated\n", dev->name);
if (ifsta->state == IEEE80211_ASSOCIATED) {
if (status_code != WLAN_STATUS_SUCCESS) {
printk(KERN_DEBUG "%s: AP denied association (code=%d)\n",
dev->name, status_code);
- if (status_code == WLAN_STATUS_REASSOC_NO_ASSOC)
- ifsta->prev_bssid_set = 0;
+ /* if this was a reassociation, ensure we try a "full"
+ * association next time. This works around some broken APs
+ * which do not correctly reject reassociation requests. */
+ ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
return;
}
return;
}
+ /* it probably doesn't, but if the frame includes an ERP value then
+ * update our stored copy */
+ if (elems.erp_info && elems.erp_info_len >= 1) {
+ struct ieee80211_sta_bss *bss
+ = ieee80211_rx_bss_get(dev, ifsta->bssid);
+ if (bss) {
+ bss->erp_value = elems.erp_info[0];
+ bss->has_erp_value = 1;
+ ieee80211_rx_bss_put(dev, bss);
+ }
+ }
+
printk(KERN_DEBUG "%s: associated\n", dev->name);
ifsta->aid = aid;
ifsta->ap_capab = capab_info;
kfree(ifsta->assocresp_ies);
ifsta->assocresp_ies_len = len - (pos - (u8 *) mgmt);
- ifsta->assocresp_ies = kmalloc(ifsta->assocresp_ies_len, GFP_ATOMIC);
+ ifsta->assocresp_ies = kmalloc(ifsta->assocresp_ies_len, GFP_KERNEL);
if (ifsta->assocresp_ies)
memcpy(ifsta->assocresp_ies, pos, ifsta->assocresp_ies_len);
sta = sta_info_get(local, ifsta->bssid);
if (!sta) {
struct ieee80211_sta_bss *bss;
- sta = sta_info_add(local, dev, ifsta->bssid, GFP_ATOMIC);
+ sta = sta_info_add(local, dev, ifsta->bssid, GFP_KERNEL);
if (!sta) {
printk(KERN_DEBUG "%s: failed to add STA entry for the"
" AP\n", dev->name);
}
sta->dev = dev;
- sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
- sta->assoc_ap = 1;
+ sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_AP;
rates = 0;
mode = local->oper_hw_mode;
for (i = 0; i < elems.supp_rates_len; i++) {
int rate = (elems.supp_rates[i] & 0x7f) * 5;
- if (mode->mode == MODE_ATHEROS_TURBO)
- rate *= 2;
for (j = 0; j < mode->num_rates; j++)
if (mode->rates[j].rate == rate)
rates |= BIT(j);
}
for (i = 0; i < elems.ext_supp_rates_len; i++) {
int rate = (elems.ext_supp_rates[i] & 0x7f) * 5;
- if (mode->mode == MODE_ATHEROS_TURBO)
- rate *= 2;
for (j = 0; j < mode->num_rates; j++)
if (mode->rates[j].rate == rate)
rates |= BIT(j);
}
sta->supp_rates = rates;
- if (elems.ht_extra_param && elems.ht_cap_param && elems.wmm_param &&
- ifsta->ht_enabled && local->ops->conf_ht){
- int rc;
-
- rc = local->ops->conf_ht(local_to_hw(local),
- (struct ieee80211_ht_capability *)
- elems.ht_cap_param,
- (struct ieee80211_ht_additional_info *)
- elems.ht_extra_param);
- if (!rc)
- sta->flags |= WLAN_STA_HT;
- }
-
-
rate_control_rate_init(sta, local);
- if (elems.wmm_param && ifsta->wmm_enabled) {
+ if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
sta->flags |= WLAN_STA_WME;
ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
elems.wmm_param_len);
ieee80211_associated(dev, ifsta);
}
-static u32 calculate_mpdu_exchange_time(struct ieee80211_local *local,
- struct ieee80211_elem_tspec *tspec)
-{
- /*
- * FIXME: MPDUExchangeTime = duration(Nominal MSDU Size, Min PHY Rate) +
- * SIFS + ACK duration
- */
- int extra = 0; /* SIFS + ACK */
-
- switch (local->hw.conf.phymode) {
- case MODE_IEEE80211A:
- extra = 16 + 24;
- break;
- case MODE_IEEE80211B:
- extra = 10 + 203;
- break;
- case MODE_IEEE80211G:
- default:
- extra = 10 + 30;
- break;
- }
- return (tspec->nominal_msdu_size * 8) /
- (tspec->min_phy_rate / 1000000) + extra;
-}
-
-static void sta_update_tspec(struct ieee80211_local *local,
- struct ieee80211_if_sta *ifsta,
- int action, struct ieee80211_elem_tspec *tspec)
-{
- u8 tsid = IEEE80211_TSINFO_TSID(tspec->ts_info);
- u8 index = ieee80211_ts_index(IEEE80211_TSINFO_DIR(tspec->ts_info));
-
- switch (action) {
- case WLAN_ACTION_QOS_ADDTS_RESP:
- ifsta->ts_data[tsid][index].status = TS_STATUS_ACTIVE;
- ifsta->ts_data[tsid][index].up =
- IEEE80211_TSINFO_UP(tspec->ts_info);
- ifsta->ts_data[tsid][index].used_time_usec = 0;
- ifsta->ts_data[tsid][index].admitted_time_usec +=
- ifsta->dot11EDCAAveragingPeriod * tspec->medium_time * 32;
- ifsta->MPDUExchangeTime =
- calculate_mpdu_exchange_time(local, tspec);
- break;
- case WLAN_ACTION_QOS_DELTS:
- ifsta->ts_data[tsid][index].status = TS_STATUS_INACTIVE;
- ifsta->ts_data[tsid][index].used_time_usec = 0;
- ifsta->ts_data[tsid][index].admitted_time_usec -=
- ifsta->dot11EDCAAveragingPeriod * tspec->medium_time * 32;
- if (ifsta->ts_data[tsid][index].admitted_time_usec < 0)
- ifsta->ts_data[tsid][index].admitted_time_usec = 0;
- ifsta->MPDUExchangeTime = 0;
- break;
- default:
- printk(KERN_ERR "%s: invalid action type %d\n", __FUNCTION__,
- action);
- break;
- }
-}
-
-static void sta_parse_tspec(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt, size_t len, u8 prefix,
- struct ieee80211_elem_tspec *tspec)
-{
- struct ieee802_11_elems elems;
- u8 *pos;
-
- /*
- printk(KERN_DEBUG "Dialog_token: %d, TID: %u, Direction: %u, PSB: %d, "
- "UP: %d\n", mgmt->u.action.u.wme_action.dialog_token,
- IEEE80211_TSINFO_TSID(tspec->ts_info),
- IEEE80211_TSINFO_DIR(tspec->ts_info),
- IEEE80211_TSINFO_APSD(tspec->ts_info),
- IEEE80211_TSINFO_UP(tspec->ts_info));
- */
-
- if (mgmt->u.action.category == WLAN_CATEGORY_QOS)
- pos = mgmt->u.action.u.addts_resp.variable + prefix;
- else
- pos = mgmt->u.action.u.wme_action.variable + prefix;
-
- if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems)
- == ParseFailed) {
- printk(KERN_DEBUG "%s: failed to parse TSPEC\n", dev->name);
- return;
- }
- memcpy(tspec, elems.tspec, sizeof(*tspec));
-}
-
-int dls_link_status(struct ieee80211_local *local, u8 *addr)
-{
- struct sta_info *dls;
- int ret = DLS_STATUS_NOLINK;
-
- if ((dls = dls_info_get(local, addr)) != NULL) {
- ret = dls->dls_status;
- sta_info_put(dls);
- }
- return ret;
-}
-
-static void sta_process_dls_req(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt, size_t len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *dls;
- u8 *src = mgmt->u.action.u.dls_req.src;
- struct ieee802_11_elems elems;
- struct ieee80211_rate *rates;
- size_t baselen, num_rates;
- int i, j;
- struct ieee80211_hw_mode *mode;
- u32 supp_rates = 0;
-
- printk(KERN_DEBUG "Receive DLS request from "
- "%02X:%02X:%02X:%02X:%02X:%02X\n",
- src[0], src[1], src[2], src[3], src[4], src[5]);
-
- baselen = (u8 *)mgmt->u.action.u.dls_req.variable - (u8 *)mgmt;
- if (baselen > len)
- return;
-
- if (ieee802_11_parse_elems(mgmt->u.action.u.dls_req.variable,
- len - baselen, &elems) == ParseFailed) {
- printk(KERN_ERR "DLS Parse support rates failed.\n");
- return;
- }
- mode = local->sta_scanning ?
- local->scan_hw_mode : local->oper_hw_mode;
- rates = mode->rates;
- num_rates = mode->num_rates;
-
- for (i = 0; i < elems.supp_rates_len + elems.ext_supp_rates_len; i++) {
- u8 rate = 0;
- if (i < elems.supp_rates_len)
- rate = elems.supp_rates[i];
- else if (elems.ext_supp_rates)
- rate = elems.ext_supp_rates[i - elems.supp_rates_len];
- rate = 5 * (rate & 0x7f);
- if (mode->mode == MODE_ATHEROS_TURBO)
- rate *= 2;
- for (j = 0; j < num_rates; j++)
- if (rates[j].rate == rate)
- supp_rates |= BIT(j);
- }
- if (supp_rates == 0) {
- /* Send DLS failed Response to the peer because
- * the supported rates are mismatch */
- ieee80211_send_dls_resp(dev, ifsta, src,
- WLAN_REASON_QSTA_NOT_USE);
- return;
- }
-
- dls = dls_info_get(local, src);
- if (!dls)
- dls = sta_info_add(local, dev, src, GFP_ATOMIC);
- if (!dls)
- return;
-
- dls->dls_status = DLS_STATUS_OK;
- dls->dls_timeout = le16_to_cpu(mgmt->u.action.u.dls_req.timeout);
- dls->supp_rates = supp_rates;
-
- /* Send DLS successful Response to the peer */
- ieee80211_send_dls_resp(dev, ifsta, src, 0);
-}
-
-
-static void sta_process_dls_resp(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt, size_t len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *dls;
- u8 *src = mgmt->u.action.u.dls_resp.src;
- struct ieee802_11_elems elems;
- struct ieee80211_rate *rates;
- size_t baselen, num_rates;
- int i, j;
- struct ieee80211_hw_mode *mode;
- u32 supp_rates = 0;
-
- printk(KERN_DEBUG "Receive DLS response from "
- "%02X:%02X:%02X:%02X:%02X:%02X\n",
- src[0], src[1], src[2], src[3], src[4], src[5]);
-
- if (mgmt->u.action.u.dls_resp.status_code) {
- printk(KERN_ERR "DLS setup refused by peer. Reason %d\n",
- mgmt->u.action.u.dls_resp.status_code);
- return;
- }
-
- baselen = (u8 *)mgmt->u.action.u.dls_resp.variable - (u8 *)mgmt;
- if (baselen > len)
- return;
-
- if (ieee802_11_parse_elems(mgmt->u.action.u.dls_resp.variable,
- len - baselen, &elems) == ParseFailed) {
- printk(KERN_ERR "DLS Parse support rates failed.\n");
- return;
- }
- mode = local->sta_scanning ?
- local->scan_hw_mode : local->oper_hw_mode;
- rates = mode->rates;
- num_rates = mode->num_rates;
-
- for (i = 0; i < elems.supp_rates_len + elems.ext_supp_rates_len; i++) {
- u8 rate = 0;
- if (i < elems.supp_rates_len)
- rate = elems.supp_rates[i];
- else if (elems.ext_supp_rates)
- rate = elems.ext_supp_rates[i - elems.supp_rates_len];
- rate = 5 * (rate & 0x7f);
- if (mode->mode == MODE_ATHEROS_TURBO)
- rate *= 2;
- for (j = 0; j < num_rates; j++)
- if (rates[j].rate == rate)
- supp_rates |= BIT(j);
- }
-
- dls = dls_info_get(local, src);
- if (!dls)
- dls = sta_info_add(local, dev, src, GFP_ATOMIC);
- if (!dls)
- return;
-
- dls->supp_rates = supp_rates;
- dls->dls_status = DLS_STATUS_OK;
- sta_info_put(dls);
-}
-
-
-static void sta_process_dls_teardown(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt, size_t len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- u8 *src = mgmt->u.action.u.dls_teardown.src;
- struct sta_info *dls;
-
- printk(KERN_DEBUG "DLS Teardown received from "
- "%02X:%02X:%02X:%02X:%02X:%02X. Reason %d\n",
- src[0], src[1], src[2], src[3], src[4], src[5],
- mgmt->u.action.u.dls_teardown.reason_code);
-
- dls = dls_info_get(local, src);
- if (dls)
- sta_info_free(dls, 0);
- return;
-}
-
/* Caller must hold local->sta_bss_lock */
static void __ieee80211_rx_bss_hash_add(struct net_device *dev,
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sta_bss *bss;
- bss = kmalloc(sizeof(*bss), GFP_ATOMIC);
+ bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
if (!bss)
return NULL;
- memset(bss, 0, sizeof(*bss));
atomic_inc(&bss->users);
atomic_inc(&bss->users);
memcpy(bss->bssid, bssid, ETH_ALEN);
kfree(bss->wpa_ie);
kfree(bss->rsn_ie);
kfree(bss->wmm_ie);
- kfree(bss->ht_ie);
kfree(bss);
}
rate = elems.ext_supp_rates
[i - elems.supp_rates_len];
own_rate = 5 * (rate & 0x7f);
- if (mode->mode == MODE_ATHEROS_TURBO)
- own_rate *= 2;
for (j = 0; j < num_rates; j++)
if (rates[j].rate == own_rate)
supp_rates |= BIT(j);
return;
}
+ /* save the ERP value so that it is available at association time */
+ if (elems.erp_info && elems.erp_info_len >= 1) {
+ bss->erp_value = elems.erp_info[0];
+ bss->has_erp_value = 1;
+ }
+
bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int);
bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info);
if (elems.ssid && elems.ssid_len <= IEEE80211_MAX_SSID_LEN) {
bss->wmm_ie_len = 0;
}
- if (elems.ht_cap_param &&
- (!bss->ht_ie || bss->ht_ie_len != elems.ht_cap_param_len ||
- memcmp(bss->ht_ie, elems.ht_cap_param, elems.ht_cap_param_len))) {
- if (bss->ht_ie)
- kfree(bss->ht_ie);
- bss->ht_ie = kmalloc(elems.ht_cap_param_len + 2, GFP_ATOMIC);
- if (bss->ht_ie) {
- memcpy(bss->ht_ie, elems.ht_cap_param - 2,
- elems.ht_cap_param_len + 2);
- bss->ht_ie_len = elems.ht_cap_param_len + 2;
- } else
- bss->ht_ie_len = 0;
- } else if (!elems.ht_cap_param && bss->ht_ie) {
- kfree(bss->ht_ie);
- bss->ht_ie = NULL;
- bss->ht_ie_len = 0;
- }
bss->hw_mode = rx_status->phymode;
bss->channel = channel;
size_t len,
struct ieee80211_rx_status *rx_status)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata;
struct ieee80211_if_sta *ifsta;
- int use_protection;
size_t baselen;
struct ieee802_11_elems elems;
return;
ifsta = &sdata->u.sta;
- if (!ifsta->associated ||
+ if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED) ||
memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0)
return;
&elems) == ParseFailed)
return;
- use_protection = 0;
- if (elems.erp_info && elems.erp_info_len >= 1) {
- use_protection =
- (elems.erp_info[0] & ERP_INFO_USE_PROTECTION) != 0;
- }
-
- if (use_protection != !!ifsta->use_protection) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: CTS protection %s (BSSID="
- MAC_FMT ")\n",
- dev->name,
- use_protection ? "enabled" : "disabled",
- MAC_ARG(ifsta->bssid));
- }
- ifsta->use_protection = use_protection ? 1 : 0;
- local->cts_protect_erp_frames = use_protection;
- }
+ if (elems.erp_info && elems.erp_info_len >= 1)
+ ieee80211_handle_erp_ie(dev, elems.erp_info[0]);
- if (elems.wmm_param && ifsta->wmm_enabled) {
+ if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
elems.wmm_param_len);
}
}
/* Reply with ProbeResp */
- skb = skb_copy(ifsta->probe_resp, GFP_ATOMIC);
+ skb = skb_copy(ifsta->probe_resp, GFP_KERNEL);
if (!skb)
return;
ieee80211_sta_tx(dev, skb, 0);
}
-static void ieee80211_send_addba_resp(struct net_device *dev,
- struct ieee80211_mgmt *mgmt_src,
- size_t len,
- u16 status)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
-
- skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer "
- "for addba resp frame\n", dev->name);
- return;
- }
-
- skb_reserve(skb, local->hw.extra_tx_headroom);
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
-
- skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_resp));
- mgmt->u.action.category = WLAN_CATEGORY_BACK;
- mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP;
- mgmt->u.action.u.addba_resp.dialog_token =
- mgmt_src->u.action.u.addba_req.dialog_token;
- mgmt->u.action.u.addba_resp.capab =
- mgmt_src->u.action.u.addba_req.capab;
- mgmt->u.action.u.addba_resp.timeout =
- mgmt_src->u.action.u.addba_req.timeout;
- mgmt->u.action.u.addba_resp.status = cpu_to_le16(status);
-
- ieee80211_sta_tx(dev, skb, 0);
-
- return;
-}
-
-static void ieee80211_rx_mgmt_action(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len)
-{
- u8 prefix = 0;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_elem_tspec tspec;
-
- if (len < IEEE80211_MIN_ACTION_SIZE)
- return;
-
- switch (mgmt->u.action.category) {
- case WLAN_CATEGORY_QOS:
- case WLAN_CATEGORY_WMM:
- if (len < 24 + 4) {
- printk(KERN_DEBUG "%s: too short (%zd) QoS category "
- "frame received from " MAC_FMT " - ignored\n",
- dev->name, len, MAC_ARG(mgmt->sa));
- return;
- }
- switch (mgmt->u.action.u.wme_action.action_code) {
- case WLAN_ACTION_QOS_ADDTS_REQ:
- printk(KERN_DEBUG "%s: WLAN_ACTION_QOS_ADDTS_REQ "
- "received in Non-AP STA mode!\n", dev->name);
- return;
- case WLAN_ACTION_QOS_ADDTS_RESP:
- if (mgmt->u.action.u.wme_action.status_code == 47) {
- /* TODO: handle TS Delay */
- prefix = 6;
- }
- /* TODO: handle TCLAS, TCLAS Porcessing here */
-
- if (mgmt->u.action.u.wme_action.status_code == 0) {
- /* TODO: handle Schedule */
- sta_parse_tspec(dev, ifsta, mgmt, len,
- prefix, &tspec);
- sta_update_tspec(local, ifsta,
- WLAN_ACTION_QOS_ADDTS_RESP,
- &tspec);
- mod_timer(&ifsta->admit_timer, jiffies +
- ifsta->dot11EDCAAveragingPeriod * HZ);
- }
- break;
- case WLAN_ACTION_QOS_DELTS:
- sta_parse_tspec(dev, ifsta, mgmt, len, prefix, &tspec);
- sta_update_tspec(local, ifsta,
- WLAN_ACTION_QOS_DELTS, &tspec);
- break;
- default:
- printk(KERN_ERR "%s: unsupported QoS action code %d\n",
- dev->name,
- mgmt->u.action.u.wme_action.action_code);
- break;
- }
- break;
-
- case WLAN_CATEGORY_DLS:
- if (len < 24 + 16) {
- printk(KERN_DEBUG "%s: too short (%zd) DLS category "
- "frame received from " MAC_FMT " - ignored\n",
- dev->name, len, MAC_ARG(mgmt->sa));
- return;
- }
- switch (mgmt->u.action.u.dls_req.action_code) {
- case WLAN_ACTION_DLS_REQ:
- sta_process_dls_req(dev, ifsta, mgmt, len);
- break;
- case WLAN_ACTION_DLS_RESP:
- sta_process_dls_resp(dev, ifsta, mgmt, len);
- break;
- case WLAN_ACTION_DLS_TEARDOWN:
- sta_process_dls_teardown(dev, ifsta, mgmt, len);
- break;
- default:
- printk(KERN_ERR "%s: unsupported DLS action code %d\n",
- dev->name, mgmt->u.action.u.dls_req.action_code);
- break;
- }
- break;
-
- case WLAN_CATEGORY_BACK:
- switch (mgmt->u.action.u.addba_req.action_code) {
- case WLAN_ACTION_ADDBA_REQ:
- if (len < (IEEE80211_MIN_ACTION_SIZE +
- sizeof(mgmt->u.action.u.addba_req)))
- break;
- if (!local->ops->handle_ba_action ||
- (local->ops->handle_ba_action(local_to_hw(local),
- mgmt)))
- ieee80211_send_addba_resp(dev, mgmt, len,
- WLAN_STATUS_REQUEST_DECLINED);
- else
- ieee80211_send_addba_resp(dev, mgmt, len,
- WLAN_STATUS_SUCCESS);
- break;
- case WLAN_ACTION_ADDBA_RESP:
- if (len < (IEEE80211_MIN_ACTION_SIZE +
- sizeof(mgmt->u.action.u.addba_resp)))
- break;
- if (!local->ops->handle_ba_action)
- break;
- local->ops->handle_ba_action(local_to_hw(local), mgmt);
- break;
- case WLAN_ACTION_DELBA:
- if (len < (IEEE80211_MIN_ACTION_SIZE +
- sizeof(mgmt->u.action.u.delba)))
- break;
-
- if (!local->ops->handle_ba_action)
- break;
-
- local->ops->handle_ba_action(local_to_hw(local), mgmt);
- break;
- default:
- break;
- }
- break;
-
- default:
- break;
- }
-}
void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
struct ieee80211_rx_status *rx_status)
case IEEE80211_STYPE_REASSOC_RESP:
case IEEE80211_STYPE_DEAUTH:
case IEEE80211_STYPE_DISASSOC:
- case IEEE80211_STYPE_ACTION:
skb_queue_tail(&ifsta->skb_queue, skb);
queue_work(local->hw.workqueue, &ifsta->work);
return;
case IEEE80211_STYPE_DISASSOC:
ieee80211_rx_mgmt_disassoc(dev, ifsta, mgmt, skb->len);
break;
- case IEEE80211_STYPE_ACTION:
- ieee80211_rx_mgmt_action(dev, ifsta, mgmt, skb->len);
- break;
}
kfree_skb(skb);
int active = 0;
struct sta_info *sta;
- spin_lock_bh(&local->sta_lock);
+ read_lock_bh(&local->sta_lock);
list_for_each_entry(sta, &local->sta_list, list) {
if (sta->dev == dev &&
time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL,
break;
}
}
- spin_unlock_bh(&local->sta_lock);
+ read_unlock_bh(&local->sta_lock);
return active;
}
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct sta_info *sta, *tmp;
+ LIST_HEAD(tmp_list);
- spin_lock_bh(&local->sta_lock);
+ write_lock_bh(&local->sta_lock);
list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
if (time_after(jiffies, sta->last_rx +
IEEE80211_IBSS_INACTIVITY_LIMIT)) {
printk(KERN_DEBUG "%s: expiring inactive STA " MAC_FMT
"\n", dev->name, MAC_ARG(sta->addr));
- sta_info_free(sta, 1);
+ __sta_info_get(sta);
+ sta_info_remove(sta);
+ list_add(&sta->list, &tmp_list);
}
- spin_unlock_bh(&local->sta_lock);
+ write_unlock_bh(&local->sta_lock);
+
+ list_for_each_entry_safe(sta, tmp, &tmp_list, list) {
+ sta_info_free(sta);
+ sta_info_put(sta);
+ }
}
}
-void ieee80211_admit_refresh(unsigned long ptr)
-{
- struct net_device *dev;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_sta *ifsta;
- int i, j, find = 0;
-
- dev = (struct net_device *) ptr;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- ifsta = &sdata->u.sta;
-
- for (i = 0; i < STA_TSID_NUM; i++) {
- for (j = 0; j < STA_TSDIR_NUM; j++) {
- if ((ifsta->ts_data[i][j].status != TS_STATUS_ACTIVE) &&
- (ifsta->ts_data[i][j].status != TS_STATUS_THROTTLING))
- continue;
- find = 1;
-
- ifsta->ts_data[i][j].used_time_usec -=
- ifsta->ts_data[i][j].admitted_time_usec;
- if ((s32)(ifsta->ts_data[i][j].used_time_usec) < 0)
- ifsta->ts_data[i][j].used_time_usec = 0;
-
- ifsta->ts_data[i][j].status =
- (ifsta->ts_data[i][j].used_time_usec >=
- ifsta->ts_data[i][j].admitted_time_usec) ?
- TS_STATUS_THROTTLING :
- TS_STATUS_ACTIVE;
- }
- }
-
- if (find)
- mod_timer(&ifsta->admit_timer, jiffies +
- ifsta->dot11EDCAAveragingPeriod * HZ);
-}
-
-
static void ieee80211_sta_reset_auth(struct net_device *dev,
struct ieee80211_if_sta *ifsta)
{
printk(KERN_DEBUG "%s: Initial auth_alg=%d\n", dev->name,
ifsta->auth_alg);
ifsta->auth_transaction = -1;
- ifsta->associated = ifsta->auth_tries = ifsta->assoc_tries = 0;
+ ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
+ ifsta->auth_tries = ifsta->assoc_tries = 0;
netif_carrier_off(dev);
}
if (sdata->type != IEEE80211_IF_TYPE_STA)
return;
- if ((ifsta->bssid_set || ifsta->auto_bssid_sel) &&
- (ifsta->ssid_set || ifsta->auto_ssid_sel)) {
+ if ((ifsta->flags & (IEEE80211_STA_BSSID_SET |
+ IEEE80211_STA_AUTO_BSSID_SEL)) &&
+ (ifsta->flags & (IEEE80211_STA_SSID_SET |
+ IEEE80211_STA_AUTO_SSID_SEL))) {
set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
queue_work(local->hw.workqueue, &ifsta->work);
}
if (!memcmp(ifsta->ssid, ssid, ssid_len))
return 1;
- if (ifsta->auto_bssid_sel)
+ if (ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL)
return 0;
hidden_ssid = 1;
struct ieee80211_sta_bss *bss, *selected = NULL;
int top_rssi = 0, freq;
- rtnl_lock();
-
- if (!ifsta->auto_channel_sel && !ifsta->auto_bssid_sel &&
- !ifsta->auto_ssid_sel) {
+ if (!(ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL |
+ IEEE80211_STA_AUTO_BSSID_SEL | IEEE80211_STA_AUTO_CHANNEL_SEL))) {
ifsta->state = IEEE80211_AUTHENTICATE;
- rtnl_unlock();
ieee80211_sta_reset_auth(dev, ifsta);
return 0;
}
!!sdata->default_key)
continue;
- if (!ifsta->auto_channel_sel && bss->freq != freq)
+ if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) &&
+ bss->freq != freq)
continue;
- if (!ifsta->auto_bssid_sel &&
+ if (!(ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL) &&
memcmp(bss->bssid, ifsta->bssid, ETH_ALEN))
continue;
- if (!ifsta->auto_ssid_sel &&
+ if (!(ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) &&
!ieee80211_sta_match_ssid(ifsta, bss->ssid, bss->ssid_len))
continue;
if (selected) {
ieee80211_set_channel(local, -1, selected->freq);
- if (!ifsta->ssid_set)
+ if (!(ifsta->flags & IEEE80211_STA_SSID_SET))
ieee80211_sta_set_ssid(dev, selected->ssid,
selected->ssid_len);
ieee80211_sta_set_bssid(dev, selected->bssid);
ieee80211_rx_bss_put(dev, selected);
ifsta->state = IEEE80211_AUTHENTICATE;
- rtnl_unlock();
ieee80211_sta_reset_auth(dev, ifsta);
return 0;
} else {
if (ifsta->state != IEEE80211_AUTHENTICATE) {
- ieee80211_sta_start_scan(dev, NULL, 0);
+ if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL)
+ ieee80211_sta_start_scan(dev, NULL, 0);
+ else
+ ieee80211_sta_start_scan(dev, ifsta->ssid,
+ ifsta->ssid_len);
ifsta->state = IEEE80211_AUTHENTICATE;
set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
} else
ifsta->state = IEEE80211_DISABLED;
}
- rtnl_unlock();
return -1;
}
"for IBSS beacon\n", dev->name);
break;
}
- control.tx_rate = (local->short_preamble &&
- (rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
+ control.tx_rate =
+ ((sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
+ (rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
rate->val2 : rate->val;
control.antenna_sel_tx = local->hw.conf.antenna_sel_tx;
control.power_level = local->hw.conf.power_level;
mode = local->oper_hw_mode;
for (i = 0; i < bss->supp_rates_len; i++) {
int bitrate = (bss->supp_rates[i] & 0x7f) * 5;
- if (mode->mode == MODE_ATHEROS_TURBO)
- bitrate *= 2;
for (j = 0; j < mode->num_rates; j++)
if (mode->rates[j].rate == bitrate)
rates |= BIT(j);
pos = bss->supp_rates;
for (i = 0; i < mode->num_rates; i++) {
int rate = mode->rates[i].rate;
- if (mode->mode == MODE_ATHEROS_TURBO)
- rate /= 2;
*pos++ = (u8) (rate / 5);
}
if (time_after(jiffies, ifsta->ibss_join_req +
IEEE80211_IBSS_JOIN_TIMEOUT)) {
- if (ifsta->create_ibss &&
+ if ((ifsta->flags & IEEE80211_STA_CREATE_IBSS) &&
local->oper_channel->flag & IEEE80211_CHAN_W_IBSS)
return ieee80211_sta_create_ibss(dev, ifsta);
- if (ifsta->create_ibss) {
+ if (ifsta->flags & IEEE80211_STA_CREATE_IBSS) {
printk(KERN_DEBUG "%s: IBSS not allowed on the"
" configured channel %d (%d MHz)\n",
dev->name, local->hw.conf.channel,
ifsta = &sdata->u.sta;
if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0)
- ifsta->prev_bssid_set = 0;
+ ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
memcpy(ifsta->ssid, ssid, len);
memset(ifsta->ssid + len, 0, IEEE80211_MAX_SSID_LEN - len);
ifsta->ssid_len = len;
- ifsta->ssid_set = len ? 1 : 0;
- if (sdata->type == IEEE80211_IF_TYPE_IBSS && !ifsta->bssid_set) {
+ if (len)
+ ifsta->flags |= IEEE80211_STA_SSID_SET;
+ else
+ ifsta->flags &= ~IEEE80211_STA_SSID_SET;
+ if (sdata->type == IEEE80211_IF_TYPE_IBSS &&
+ !(ifsta->flags & IEEE80211_STA_BSSID_SET)) {
ifsta->ibss_join_req = jiffies;
ifsta->state = IEEE80211_IBSS_SEARCH;
return ieee80211_sta_find_ibss(dev, ifsta);
}
}
- if (!is_valid_ether_addr(bssid))
- ifsta->bssid_set = 0;
+ if (is_valid_ether_addr(bssid))
+ ifsta->flags |= IEEE80211_STA_BSSID_SET;
else
- ifsta->bssid_set = 1;
+ ifsta->flags &= ~IEEE80211_STA_BSSID_SET;
+
return 0;
}
printk(KERN_DEBUG "%s: failed to restore operational"
"channel after scan\n", dev->name);
- if (!(local->hw.flags & IEEE80211_HW_NO_PROBE_FILTERING) &&
- ieee80211_if_config(dev))
- printk(KERN_DEBUG "%s: failed to restore operational"
- "BSSID after scan\n", dev->name);
+
+ netif_tx_lock_bh(local->mdev);
+ local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC;
+ local->ops->configure_filter(local_to_hw(local),
+ FIF_BCN_PRBRESP_PROMISC,
+ &local->filter_flags,
+ local->mdev->mc_count,
+ local->mdev->mc_list);
+
+ netif_tx_unlock_bh(local->mdev);
memset(&wrqu, 0, sizeof(wrqu));
wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
- read_lock(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list) {
+ rcu_read_lock();
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
/* No need to wake the master device. */
if (sdata->dev == local->mdev)
continue;
if (sdata->type == IEEE80211_IF_TYPE_STA) {
- if (sdata->u.sta.associated)
+ if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)
ieee80211_send_nullfunc(local, sdata, 0);
ieee80211_sta_timer((unsigned long)sdata);
}
netif_wake_queue(sdata->dev);
}
- read_unlock(&local->sub_if_lock);
+ rcu_read_unlock();
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->type == IEEE80211_IF_TYPE_IBSS) {
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- if (!ifsta->bssid_set ||
+ if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) ||
(!ifsta->state == IEEE80211_IBSS_JOINED &&
!ieee80211_sta_active_ibss(dev)))
ieee80211_sta_find_ibss(dev, ifsta);
local->sta_scanning = 1;
- read_lock(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list) {
+ rcu_read_lock();
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
/* Don't stop the master interface, otherwise we can't transmit
* probes! */
netif_stop_queue(sdata->dev);
if (sdata->type == IEEE80211_IF_TYPE_STA &&
- sdata->u.sta.associated)
+ (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED))
ieee80211_send_nullfunc(local, sdata, 1);
}
- read_unlock(&local->sub_if_lock);
+ rcu_read_unlock();
if (ssid) {
local->scan_ssid_len = ssid_len;
local->scan_channel_idx = 0;
local->scan_dev = dev;
- if (!(local->hw.flags & IEEE80211_HW_NO_PROBE_FILTERING) &&
- ieee80211_if_config(dev))
- printk(KERN_DEBUG "%s: failed to set BSSID for scan\n",
- dev->name);
+ netif_tx_lock_bh(local->mdev);
+ local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
+ local->ops->configure_filter(local_to_hw(local),
+ FIF_BCN_PRBRESP_PROMISC,
+ &local->filter_flags,
+ local->mdev->mc_count,
+ local->mdev->mc_list);
+ netif_tx_unlock_bh(local->mdev);
/* TODO: start scan as soon as all nullfunc frames are ACKed */
queue_delayed_work(local->hw.workqueue, &local->scan_work,
}
printk(KERN_DEBUG "%s: Adding new IBSS station " MAC_FMT " (dev=%s)\n",
- local->mdev->name, MAC_ARG(addr), dev->name);
+ wiphy_name(local->hw.wiphy), MAC_ARG(addr), dev->name);
sta = sta_info_add(local, dev, addr, GFP_ATOMIC);
if (!sta)
if (sdata->type != IEEE80211_IF_TYPE_STA)
return -EINVAL;
- if (!ifsta->associated)
+ if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED))
return -1;
ieee80211_send_disassoc(dev, ifsta, reason);
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/if_ether.h>
+#include <linux/etherdevice.h>
+#include <linux/list.h>
+#include <linux/rcupdate.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "debugfs_key.h"
+#include "aes_ccm.h"
+
+
+/*
+ * Key handling basics
+ *
+ * Key handling in mac80211 is done based on per-interface (sub_if_data)
+ * keys and per-station keys. Since each station belongs to an interface,
+ * each station key also belongs to that interface.
+ *
+ * Hardware acceleration is done on a best-effort basis, for each key
+ * that is eligible the hardware is asked to enable that key but if
+ * it cannot do that they key is simply kept for software encryption.
+ * There is currently no way of knowing this except by looking into
+ * debugfs.
+ *
+ * All operations here are called under RTNL so no extra locking is
+ * required.
+ */
+
+static const u8 bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+static const u8 zero_addr[ETH_ALEN];
+
+static const u8 *get_mac_for_key(struct ieee80211_key *key)
+{
+ const u8 *addr = bcast_addr;
+
+ /*
+ * If we're an AP we won't ever receive frames with a non-WEP
+ * group key so we tell the driver that by using the zero MAC
+ * address to indicate a transmit-only key.
+ */
+ if (key->conf.alg != ALG_WEP &&
+ (key->sdata->type == IEEE80211_IF_TYPE_AP ||
+ key->sdata->type == IEEE80211_IF_TYPE_VLAN))
+ addr = zero_addr;
+
+ if (key->sta)
+ addr = key->sta->addr;
+
+ return addr;
+}
+
+static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
+{
+ const u8 *addr;
+ int ret;
+
+ if (!key->local->ops->set_key)
+ return;
+
+ addr = get_mac_for_key(key);
+
+ ret = key->local->ops->set_key(local_to_hw(key->local), SET_KEY,
+ key->sdata->dev->dev_addr, addr,
+ &key->conf);
+
+ if (!ret)
+ key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE;
+
+ if (ret && ret != -ENOSPC && ret != -EOPNOTSUPP)
+ printk(KERN_ERR "mac80211-%s: failed to set key "
+ "(%d, " MAC_FMT ") to hardware (%d)\n",
+ wiphy_name(key->local->hw.wiphy),
+ key->conf.keyidx, MAC_ARG(addr), ret);
+}
+
+static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
+{
+ const u8 *addr;
+ int ret;
+
+ if (!key->local->ops->set_key)
+ return;
+
+ if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
+ return;
+
+ addr = get_mac_for_key(key);
+
+ ret = key->local->ops->set_key(local_to_hw(key->local), DISABLE_KEY,
+ key->sdata->dev->dev_addr, addr,
+ &key->conf);
+
+ if (ret)
+ printk(KERN_ERR "mac80211-%s: failed to remove key "
+ "(%d, " MAC_FMT ") from hardware (%d)\n",
+ wiphy_name(key->local->hw.wiphy),
+ key->conf.keyidx, MAC_ARG(addr), ret);
+
+ key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE;
+}
+
+struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta,
+ enum ieee80211_key_alg alg,
+ int idx,
+ size_t key_len,
+ const u8 *key_data)
+{
+ struct ieee80211_key *key;
+
+ BUG_ON(idx < 0 || idx >= NUM_DEFAULT_KEYS);
+
+ key = kzalloc(sizeof(struct ieee80211_key) + key_len, GFP_KERNEL);
+ if (!key)
+ return NULL;
+
+ /*
+ * Default to software encryption; we'll later upload the
+ * key to the hardware if possible.
+ */
+ key->conf.flags = 0;
+ key->flags = 0;
+
+ key->conf.alg = alg;
+ key->conf.keyidx = idx;
+ key->conf.keylen = key_len;
+ memcpy(key->conf.key, key_data, key_len);
+
+ key->local = sdata->local;
+ key->sdata = sdata;
+ key->sta = sta;
+
+ if (alg == ALG_CCMP) {
+ /*
+ * Initialize AES key state here as an optimization so that
+ * it does not need to be initialized for every packet.
+ */
+ key->u.ccmp.tfm = ieee80211_aes_key_setup_encrypt(key_data);
+ if (!key->u.ccmp.tfm) {
+ ieee80211_key_free(key);
+ return NULL;
+ }
+ }
+
+ ieee80211_debugfs_key_add(key->local, key);
+
+ /* remove key first */
+ if (sta)
+ ieee80211_key_free(sta->key);
+ else
+ ieee80211_key_free(sdata->keys[idx]);
+
+ if (sta) {
+ ieee80211_debugfs_key_sta_link(key, sta);
+
+ /*
+ * some hardware cannot handle TKIP with QoS, so
+ * we indicate whether QoS could be in use.
+ */
+ if (sta->flags & WLAN_STA_WME)
+ key->conf.flags |= IEEE80211_KEY_FLAG_WMM_STA;
+ } else {
+ if (sdata->type == IEEE80211_IF_TYPE_STA) {
+ struct sta_info *ap;
+
+ /* same here, the AP could be using QoS */
+ ap = sta_info_get(key->local, key->sdata->u.sta.bssid);
+ if (ap) {
+ if (ap->flags & WLAN_STA_WME)
+ key->conf.flags |=
+ IEEE80211_KEY_FLAG_WMM_STA;
+ sta_info_put(ap);
+ }
+ }
+ }
+
+ /* enable hwaccel if appropriate */
+ if (netif_running(key->sdata->dev))
+ ieee80211_key_enable_hw_accel(key);
+
+ if (sta)
+ rcu_assign_pointer(sta->key, key);
+ else
+ rcu_assign_pointer(sdata->keys[idx], key);
+
+ list_add(&key->list, &sdata->key_list);
+
+ return key;
+}
+
+void ieee80211_key_free(struct ieee80211_key *key)
+{
+ if (!key)
+ return;
+
+ if (key->sta) {
+ rcu_assign_pointer(key->sta->key, NULL);
+ } else {
+ if (key->sdata->default_key == key)
+ ieee80211_set_default_key(key->sdata, -1);
+ if (key->conf.keyidx >= 0 &&
+ key->conf.keyidx < NUM_DEFAULT_KEYS)
+ rcu_assign_pointer(key->sdata->keys[key->conf.keyidx],
+ NULL);
+ else
+ WARN_ON(1);
+ }
+
+ /* wait for all key users to complete */
+ synchronize_rcu();
+
+ /* remove from hwaccel if appropriate */
+ ieee80211_key_disable_hw_accel(key);
+
+ if (key->conf.alg == ALG_CCMP)
+ ieee80211_aes_key_free(key->u.ccmp.tfm);
+ ieee80211_debugfs_key_remove(key);
+
+ list_del(&key->list);
+
+ kfree(key);
+}
+
+void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx)
+{
+ struct ieee80211_key *key = NULL;
+
+ if (idx >= 0 && idx < NUM_DEFAULT_KEYS)
+ key = sdata->keys[idx];
+
+ if (sdata->default_key != key) {
+ ieee80211_debugfs_key_remove_default(sdata);
+
+ rcu_assign_pointer(sdata->default_key, key);
+
+ if (sdata->default_key)
+ ieee80211_debugfs_key_add_default(sdata);
+ }
+}
+
+void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_key *key, *tmp;
+
+ list_for_each_entry_safe(key, tmp, &sdata->key_list, list)
+ ieee80211_key_free(key);
+}
+
+void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_key *key;
+
+ WARN_ON(!netif_running(sdata->dev));
+ if (!netif_running(sdata->dev))
+ return;
+
+ list_for_each_entry(key, &sdata->key_list, list)
+ ieee80211_key_enable_hw_accel(key);
+}
+
+void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_key *key;
+
+ list_for_each_entry(key, &sdata->key_list, list)
+ ieee80211_key_disable_hw_accel(key);
+}
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- * Copyright (c) 2006-2007 Jiri Benc <jbenc@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/compiler.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "debugfs.h"
-
-static void rate_control_lowest_tx_status(void *priv, struct net_device *dev,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status)
-{
-}
-
-static struct ieee80211_rate *
-rate_control_lowest_get_rate(void *priv, struct net_device *dev,
- struct sk_buff *skb,
- struct rate_control_extra *extra)
-{
- struct ieee80211_hw_mode *mode = extra->mode;
- int i;
-
- for (i = 0; i < mode->num_rates; i++) {
- struct ieee80211_rate *rate = &mode->rates[i];
-
- if (rate->flags & IEEE80211_RATE_SUPPORTED)
- return rate;
- }
- return &mode->rates[0];
-}
-
-static void rate_control_lowest_rate_init(void *priv, void *priv_sta,
- struct ieee80211_local *local,
- struct sta_info *sta)
-{
- sta->txrate = 0;
-}
-
-static void *rate_control_lowest_alloc(struct ieee80211_local *local)
-{
- return local;
-}
-
-static void rate_control_lowest_free(void *priv)
-{
-}
-
-static void rate_control_lowest_clear(void *priv)
-{
-}
-
-static void *rate_control_lowest_alloc_sta(void *priv, gfp_t gfp)
-{
- return priv;
-}
-
-static void rate_control_lowest_free_sta(void *priv, void *priv_sta)
-{
-}
-
-static struct rate_control_ops rate_control_lowest = {
- .module = THIS_MODULE,
- .name = "lowest",
- .tx_status = rate_control_lowest_tx_status,
- .get_rate = rate_control_lowest_get_rate,
- .rate_init = rate_control_lowest_rate_init,
- .clear = rate_control_lowest_clear,
- .alloc = rate_control_lowest_alloc,
- .free = rate_control_lowest_free,
- .alloc_sta = rate_control_lowest_alloc_sta,
- .free_sta = rate_control_lowest_free_sta,
-};
-
-static int __init rate_control_lowest_init(void)
-{
- return ieee80211_rate_control_register(&rate_control_lowest);
-}
-
-
-static void __exit rate_control_lowest_exit(void)
-{
- ieee80211_rate_control_unregister(&rate_control_lowest);
-}
-
-
-module_init(rate_control_lowest_init);
-module_exit(rate_control_lowest_exit);
-
-MODULE_DESCRIPTION("Forced 1 mbps rate control module for mac80211");
-MODULE_LICENSE("GPL");
-
srctrl = sta->rate_ctrl_priv;
srctrl->tx_num_xmit++;
if (status->excessive_retries) {
- sta->antenna_sel_tx = sta->antenna_sel_tx == 1 ? 2 : 1;
- sta->antenna_sel_rx = sta->antenna_sel_rx == 1 ? 2 : 1;
- if (local->sta_antenna_sel == STA_ANTENNA_SEL_SW_CTRL_DEBUG) {
- printk(KERN_DEBUG "%s: " MAC_FMT " TX antenna --> %d "
- "RX antenna --> %d (@%lu)\n",
- dev->name, MAC_ARG(hdr->addr1),
- sta->antenna_sel_tx, sta->antenna_sel_rx, jiffies);
- }
srctrl->tx_num_failures++;
sta->tx_retry_failed++;
sta->tx_num_consecutive_failures++;
}
#endif
- if (per_failed > local->rate_ctrl_num_down) {
+ /*
+ * XXX: Make these configurable once we have an
+ * interface to the rate control algorithms
+ */
+ if (per_failed > RATE_CONTROL_NUM_DOWN) {
rate_control_rate_dec(local, sta);
- } else if (per_failed < local->rate_ctrl_num_up) {
+ } else if (per_failed < RATE_CONTROL_NUM_UP) {
rate_control_rate_inc(local, sta);
}
srctrl->tx_avg_rate_sum += status->control.rate->rate;
}
-module_init(rate_control_simple_init);
+subsys_initcall(rate_control_simple_init);
module_exit(rate_control_simple_exit);
MODULE_DESCRIPTION("Simple rate control algorithm for ieee80211");
#include <linux/module.h>
#include <linux/netdevice.h>
#include <net/mac80211.h>
+#include "ieee80211_i.h"
static int ieee80211_regdom = 0x10; /* FCC */
module_param(ieee80211_regdom, int, 0444);
chan->flag = 0;
- if (ieee80211_regdom == 64 &&
- (mode == MODE_ATHEROS_TURBO || mode == MODE_ATHEROS_TURBOG)) {
- /* Do not allow Turbo modes in Japan. */
- return;
- }
-
for (i = 0; channel_range[i].start_freq; i++) {
const struct ieee80211_channel_range *r = &channel_range[i];
if (r->start_freq <= chan->freq && r->end_freq >= chan->freq) {
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/rcupdate.h>
+#include <net/mac80211.h>
+#include <net/ieee80211_radiotap.h>
+
+#include "ieee80211_i.h"
+#include "ieee80211_led.h"
+#include "wep.h"
+#include "wpa.h"
+#include "tkip.h"
+#include "wme.h"
+
+/*
+ * monitor mode reception
+ *
+ * This function cleans up the SKB, i.e. it removes all the stuff
+ * only useful for monitoring.
+ */
+static struct sk_buff *remove_monitor_info(struct ieee80211_local *local,
+ struct sk_buff *skb,
+ int rtap_len)
+{
+ skb_pull(skb, rtap_len);
+
+ if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) {
+ if (likely(skb->len > FCS_LEN))
+ skb_trim(skb, skb->len - FCS_LEN);
+ else {
+ /* driver bug */
+ WARN_ON(1);
+ dev_kfree_skb(skb);
+ skb = NULL;
+ }
+ }
+
+ return skb;
+}
+
+static inline int should_drop_frame(struct ieee80211_rx_status *status,
+ struct sk_buff *skb,
+ int present_fcs_len,
+ int radiotap_len)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+
+ if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
+ return 1;
+ if (unlikely(skb->len < 16 + present_fcs_len + radiotap_len))
+ return 1;
+ if ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_CTL))
+ return 1;
+ return 0;
+}
+
+/*
+ * This function copies a received frame to all monitor interfaces and
+ * returns a cleaned-up SKB that no longer includes the FCS nor the
+ * radiotap header the driver might have added.
+ */
+static struct sk_buff *
+ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
+ struct ieee80211_rx_status *status)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_rate *rate;
+ int needed_headroom = 0;
+ struct ieee80211_rtap_hdr {
+ struct ieee80211_radiotap_header hdr;
+ u8 flags;
+ u8 rate;
+ __le16 chan_freq;
+ __le16 chan_flags;
+ u8 antsignal;
+ u8 padding_for_rxflags;
+ __le16 rx_flags;
+ } __attribute__ ((packed)) *rthdr;
+ struct sk_buff *skb, *skb2;
+ struct net_device *prev_dev = NULL;
+ int present_fcs_len = 0;
+ int rtap_len = 0;
+
+ /*
+ * First, we may need to make a copy of the skb because
+ * (1) we need to modify it for radiotap (if not present), and
+ * (2) the other RX handlers will modify the skb we got.
+ *
+ * We don't need to, of course, if we aren't going to return
+ * the SKB because it has a bad FCS/PLCP checksum.
+ */
+ if (status->flag & RX_FLAG_RADIOTAP)
+ rtap_len = ieee80211_get_radiotap_len(origskb->data);
+ else
+ needed_headroom = sizeof(*rthdr);
+
+ if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
+ present_fcs_len = FCS_LEN;
+
+ if (!local->monitors) {
+ if (should_drop_frame(status, origskb, present_fcs_len,
+ rtap_len)) {
+ dev_kfree_skb(origskb);
+ return NULL;
+ }
+
+ return remove_monitor_info(local, origskb, rtap_len);
+ }
+
+ if (should_drop_frame(status, origskb, present_fcs_len, rtap_len)) {
+ /* only need to expand headroom if necessary */
+ skb = origskb;
+ origskb = NULL;
+
+ /*
+ * This shouldn't trigger often because most devices have an
+ * RX header they pull before we get here, and that should
+ * be big enough for our radiotap information. We should
+ * probably export the length to drivers so that we can have
+ * them allocate enough headroom to start with.
+ */
+ if (skb_headroom(skb) < needed_headroom &&
+ pskb_expand_head(skb, sizeof(*rthdr), 0, GFP_ATOMIC)) {
+ dev_kfree_skb(skb);
+ return NULL;
+ }
+ } else {
+ /*
+ * Need to make a copy and possibly remove radiotap header
+ * and FCS from the original.
+ */
+ skb = skb_copy_expand(origskb, needed_headroom, 0, GFP_ATOMIC);
+
+ origskb = remove_monitor_info(local, origskb, rtap_len);
+
+ if (!skb)
+ return origskb;
+ }
+
+ /* if necessary, prepend radiotap information */
+ if (!(status->flag & RX_FLAG_RADIOTAP)) {
+ rthdr = (void *) skb_push(skb, sizeof(*rthdr));
+ memset(rthdr, 0, sizeof(*rthdr));
+ rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr));
+ rthdr->hdr.it_present =
+ cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
+ (1 << IEEE80211_RADIOTAP_RATE) |
+ (1 << IEEE80211_RADIOTAP_CHANNEL) |
+ (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL) |
+ (1 << IEEE80211_RADIOTAP_RX_FLAGS));
+ rthdr->flags = local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS ?
+ IEEE80211_RADIOTAP_F_FCS : 0;
+
+ /* FIXME: when radiotap gets a 'bad PLCP' flag use it here */
+ rthdr->rx_flags = 0;
+ if (status->flag &
+ (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
+ rthdr->rx_flags |=
+ cpu_to_le16(IEEE80211_RADIOTAP_F_RX_BADFCS);
+
+ rate = ieee80211_get_rate(local, status->phymode,
+ status->rate);
+ if (rate)
+ rthdr->rate = rate->rate / 5;
+
+ rthdr->chan_freq = cpu_to_le16(status->freq);
+
+ if (status->phymode == MODE_IEEE80211A)
+ rthdr->chan_flags =
+ cpu_to_le16(IEEE80211_CHAN_OFDM |
+ IEEE80211_CHAN_5GHZ);
+ else
+ rthdr->chan_flags =
+ cpu_to_le16(IEEE80211_CHAN_DYN |
+ IEEE80211_CHAN_2GHZ);
+
+ rthdr->antsignal = status->ssi;
+ }
+
+ skb_set_mac_header(skb, 0);
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb->pkt_type = PACKET_OTHERHOST;
+ skb->protocol = htons(ETH_P_802_2);
+
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ if (!netif_running(sdata->dev))
+ continue;
+
+ if (sdata->type != IEEE80211_IF_TYPE_MNTR)
+ continue;
+
+ if (prev_dev) {
+ skb2 = skb_clone(skb, GFP_ATOMIC);
+ if (skb2) {
+ skb2->dev = prev_dev;
+ netif_rx(skb2);
+ }
+ }
+
+ prev_dev = sdata->dev;
+ sdata->dev->stats.rx_packets++;
+ sdata->dev->stats.rx_bytes += skb->len;
+ }
+
+ if (prev_dev) {
+ skb->dev = prev_dev;
+ netif_rx(skb);
+ } else
+ dev_kfree_skb(skb);
+
+ return origskb;
+}
+
+
+/* pre-rx handlers
+ *
+ * these don't have dev/sdata fields in the rx data
+ * The sta value should also not be used because it may
+ * be NULL even though a STA (in IBSS mode) will be added.
+ */
+
+static ieee80211_txrx_result
+ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx)
+{
+ u8 *data = rx->skb->data;
+ int tid;
+
+ /* does the frame have a qos control field? */
+ if (WLAN_FC_IS_QOS_DATA(rx->fc)) {
+ u8 *qc = data + ieee80211_get_hdrlen(rx->fc) - QOS_CONTROL_LEN;
+ /* frame has qos control */
+ tid = qc[0] & QOS_CONTROL_TID_MASK;
+ } else {
+ if (unlikely((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)) {
+ /* Separate TID for management frames */
+ tid = NUM_RX_DATA_QUEUES - 1;
+ } else {
+ /* no qos control present */
+ tid = 0; /* 802.1d - Best Effort */
+ }
+ }
+
+ I802_DEBUG_INC(rx->local->wme_rx_queue[tid]);
+ /* only a debug counter, sta might not be assigned properly yet */
+ if (rx->sta)
+ I802_DEBUG_INC(rx->sta->wme_rx_queue[tid]);
+
+ rx->u.rx.queue = tid;
+ /* Set skb->priority to 1d tag if highest order bit of TID is not set.
+ * For now, set skb->priority to 0 for other cases. */
+ rx->skb->priority = (tid > 7) ? 0 : tid;
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_load_stats(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_local *local = rx->local;
+ struct sk_buff *skb = rx->skb;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ u32 load = 0, hdrtime;
+ struct ieee80211_rate *rate;
+ struct ieee80211_hw_mode *mode = local->hw.conf.mode;
+ int i;
+
+ /* Estimate total channel use caused by this frame */
+
+ if (unlikely(mode->num_rates < 0))
+ return TXRX_CONTINUE;
+
+ rate = &mode->rates[0];
+ for (i = 0; i < mode->num_rates; i++) {
+ if (mode->rates[i].val == rx->u.rx.status->rate) {
+ rate = &mode->rates[i];
+ break;
+ }
+ }
+
+ /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values,
+ * 1 usec = 1/8 * (1080 / 10) = 13.5 */
+
+ if (mode->mode == MODE_IEEE80211A ||
+ (mode->mode == MODE_IEEE80211G &&
+ rate->flags & IEEE80211_RATE_ERP))
+ hdrtime = CHAN_UTIL_HDR_SHORT;
+ else
+ hdrtime = CHAN_UTIL_HDR_LONG;
+
+ load = hdrtime;
+ if (!is_multicast_ether_addr(hdr->addr1))
+ load += hdrtime;
+
+ load += skb->len * rate->rate_inv;
+
+ /* Divide channel_use by 8 to avoid wrapping around the counter */
+ load >>= CHAN_UTIL_SHIFT;
+ local->channel_use_raw += load;
+ rx->u.rx.load = load;
+
+ return TXRX_CONTINUE;
+}
+
+ieee80211_rx_handler ieee80211_rx_pre_handlers[] =
+{
+ ieee80211_rx_h_parse_qos,
+ ieee80211_rx_h_load_stats,
+ NULL
+};
+
+/* rx handlers */
+
+static ieee80211_txrx_result
+ieee80211_rx_h_if_stats(struct ieee80211_txrx_data *rx)
+{
+ if (rx->sta)
+ rx->sta->channel_use_raw += rx->u.rx.load;
+ rx->sdata->channel_use_raw += rx->u.rx.load;
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_passive_scan(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_local *local = rx->local;
+ struct sk_buff *skb = rx->skb;
+
+ if (unlikely(local->sta_scanning != 0)) {
+ ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status);
+ return TXRX_QUEUED;
+ }
+
+ if (unlikely(rx->flags & IEEE80211_TXRXD_RXIN_SCAN)) {
+ /* scanning finished during invoking of handlers */
+ I802_DEBUG_INC(local->rx_handlers_drop_passive_scan);
+ return TXRX_DROP;
+ }
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_hdr *hdr;
+ hdr = (struct ieee80211_hdr *) rx->skb->data;
+
+ /* Drop duplicate 802.11 retransmissions (IEEE 802.11 Chap. 9.2.9) */
+ if (rx->sta && !is_multicast_ether_addr(hdr->addr1)) {
+ if (unlikely(rx->fc & IEEE80211_FCTL_RETRY &&
+ rx->sta->last_seq_ctrl[rx->u.rx.queue] ==
+ hdr->seq_ctrl)) {
+ if (rx->flags & IEEE80211_TXRXD_RXRA_MATCH) {
+ rx->local->dot11FrameDuplicateCount++;
+ rx->sta->num_duplicates++;
+ }
+ return TXRX_DROP;
+ } else
+ rx->sta->last_seq_ctrl[rx->u.rx.queue] = hdr->seq_ctrl;
+ }
+
+ if (unlikely(rx->skb->len < 16)) {
+ I802_DEBUG_INC(rx->local->rx_handlers_drop_short);
+ return TXRX_DROP;
+ }
+
+ if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
+ rx->skb->pkt_type = PACKET_OTHERHOST;
+ else if (compare_ether_addr(rx->dev->dev_addr, hdr->addr1) == 0)
+ rx->skb->pkt_type = PACKET_HOST;
+ else if (is_multicast_ether_addr(hdr->addr1)) {
+ if (is_broadcast_ether_addr(hdr->addr1))
+ rx->skb->pkt_type = PACKET_BROADCAST;
+ else
+ rx->skb->pkt_type = PACKET_MULTICAST;
+ } else
+ rx->skb->pkt_type = PACKET_OTHERHOST;
+
+ /* Drop disallowed frame classes based on STA auth/assoc state;
+ * IEEE 802.11, Chap 5.5.
+ *
+ * 80211.o does filtering only based on association state, i.e., it
+ * drops Class 3 frames from not associated stations. hostapd sends
+ * deauth/disassoc frames when needed. In addition, hostapd is
+ * responsible for filtering on both auth and assoc states.
+ */
+ if (unlikely(((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA ||
+ ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL &&
+ (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)) &&
+ rx->sdata->type != IEEE80211_IF_TYPE_IBSS &&
+ (!rx->sta || !(rx->sta->flags & WLAN_STA_ASSOC)))) {
+ if ((!(rx->fc & IEEE80211_FCTL_FROMDS) &&
+ !(rx->fc & IEEE80211_FCTL_TODS) &&
+ (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)
+ || !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
+ /* Drop IBSS frames and frames for other hosts
+ * silently. */
+ return TXRX_DROP;
+ }
+
+ return TXRX_DROP;
+ }
+
+ return TXRX_CONTINUE;
+}
+
+
+static ieee80211_txrx_result
+ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
+ int keyidx;
+ int hdrlen;
+ ieee80211_txrx_result result = TXRX_DROP;
+ struct ieee80211_key *stakey = NULL;
+
+ /*
+ * Key selection 101
+ *
+ * There are three types of keys:
+ * - GTK (group keys)
+ * - PTK (pairwise keys)
+ * - STK (station-to-station pairwise keys)
+ *
+ * When selecting a key, we have to distinguish between multicast
+ * (including broadcast) and unicast frames, the latter can only
+ * use PTKs and STKs while the former always use GTKs. Unless, of
+ * course, actual WEP keys ("pre-RSNA") are used, then unicast
+ * frames can also use key indizes like GTKs. Hence, if we don't
+ * have a PTK/STK we check the key index for a WEP key.
+ *
+ * Note that in a regular BSS, multicast frames are sent by the
+ * AP only, associated stations unicast the frame to the AP first
+ * which then multicasts it on their behalf.
+ *
+ * There is also a slight problem in IBSS mode: GTKs are negotiated
+ * with each station, that is something we don't currently handle.
+ * The spec seems to expect that one negotiates the same key with
+ * every station but there's no such requirement; VLANs could be
+ * possible.
+ */
+
+ if (!(rx->fc & IEEE80211_FCTL_PROTECTED))
+ return TXRX_CONTINUE;
+
+ /*
+ * No point in finding a key and decrypting if the frame is neither
+ * addressed to us nor a multicast frame.
+ */
+ if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
+ return TXRX_CONTINUE;
+
+ if (rx->sta)
+ stakey = rcu_dereference(rx->sta->key);
+
+ if (!is_multicast_ether_addr(hdr->addr1) && stakey) {
+ rx->key = stakey;
+ } else {
+ /*
+ * The device doesn't give us the IV so we won't be
+ * able to look up the key. That's ok though, we
+ * don't need to decrypt the frame, we just won't
+ * be able to keep statistics accurate.
+ * Except for key threshold notifications, should
+ * we somehow allow the driver to tell us which key
+ * the hardware used if this flag is set?
+ */
+ if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
+ (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED))
+ return TXRX_CONTINUE;
+
+ hdrlen = ieee80211_get_hdrlen(rx->fc);
+
+ if (rx->skb->len < 8 + hdrlen)
+ return TXRX_DROP; /* TODO: count this? */
+
+ /*
+ * no need to call ieee80211_wep_get_keyidx,
+ * it verifies a bunch of things we've done already
+ */
+ keyidx = rx->skb->data[hdrlen + 3] >> 6;
+
+ rx->key = rcu_dereference(rx->sdata->keys[keyidx]);
+
+ /*
+ * RSNA-protected unicast frames should always be sent with
+ * pairwise or station-to-station keys, but for WEP we allow
+ * using a key index as well.
+ */
+ if (rx->key && rx->key->conf.alg != ALG_WEP &&
+ !is_multicast_ether_addr(hdr->addr1))
+ rx->key = NULL;
+ }
+
+ if (rx->key) {
+ rx->key->tx_rx_count++;
+ /* TODO: add threshold stuff again */
+ } else {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: RX protected frame,"
+ " but have no key\n", rx->dev->name);
+ return TXRX_DROP;
+ }
+
+ /* Check for weak IVs if possible */
+ if (rx->sta && rx->key->conf.alg == ALG_WEP &&
+ ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
+ (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED) ||
+ !(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) &&
+ ieee80211_wep_is_weak_iv(rx->skb, rx->key))
+ rx->sta->wep_weak_iv_count++;
+
+ switch (rx->key->conf.alg) {
+ case ALG_WEP:
+ result = ieee80211_crypto_wep_decrypt(rx);
+ break;
+ case ALG_TKIP:
+ result = ieee80211_crypto_tkip_decrypt(rx);
+ break;
+ case ALG_CCMP:
+ result = ieee80211_crypto_ccmp_decrypt(rx);
+ break;
+ }
+
+ /* either the frame has been decrypted or will be dropped */
+ rx->u.rx.status->flag |= RX_FLAG_DECRYPTED;
+
+ return result;
+}
+
+static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta)
+{
+ struct ieee80211_sub_if_data *sdata;
+ sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+
+ if (sdata->bss)
+ atomic_inc(&sdata->bss->num_sta_ps);
+ sta->flags |= WLAN_STA_PS;
+ sta->pspoll = 0;
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
+ printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d enters power "
+ "save mode\n", dev->name, MAC_ARG(sta->addr), sta->aid);
+#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
+}
+
+static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sk_buff *skb;
+ int sent = 0;
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_tx_packet_data *pkt_data;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+ if (sdata->bss)
+ atomic_dec(&sdata->bss->num_sta_ps);
+ sta->flags &= ~(WLAN_STA_PS | WLAN_STA_TIM);
+ sta->pspoll = 0;
+ if (!skb_queue_empty(&sta->ps_tx_buf)) {
+ if (local->ops->set_tim)
+ local->ops->set_tim(local_to_hw(local), sta->aid, 0);
+ if (sdata->bss)
+ bss_tim_clear(local, sdata->bss, sta->aid);
+ }
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
+ printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d exits power "
+ "save mode\n", dev->name, MAC_ARG(sta->addr), sta->aid);
+#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
+ /* Send all buffered frames to the station */
+ while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
+ pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
+ sent++;
+ pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
+ dev_queue_xmit(skb);
+ }
+ while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
+ pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
+ local->total_ps_buffered--;
+ sent++;
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
+ printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d send PS frame "
+ "since STA not sleeping anymore\n", dev->name,
+ MAC_ARG(sta->addr), sta->aid);
+#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
+ pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
+ dev_queue_xmit(skb);
+ }
+
+ return sent;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_sta_process(struct ieee80211_txrx_data *rx)
+{
+ struct sta_info *sta = rx->sta;
+ struct net_device *dev = rx->dev;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
+
+ if (!sta)
+ return TXRX_CONTINUE;
+
+ /* Update last_rx only for IBSS packets which are for the current
+ * BSSID to avoid keeping the current IBSS network alive in cases where
+ * other STAs are using different BSSID. */
+ if (rx->sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len);
+ if (compare_ether_addr(bssid, rx->sdata->u.sta.bssid) == 0)
+ sta->last_rx = jiffies;
+ } else
+ if (!is_multicast_ether_addr(hdr->addr1) ||
+ rx->sdata->type == IEEE80211_IF_TYPE_STA) {
+ /* Update last_rx only for unicast frames in order to prevent
+ * the Probe Request frames (the only broadcast frames from a
+ * STA in infrastructure mode) from keeping a connection alive.
+ */
+ sta->last_rx = jiffies;
+ }
+
+ if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
+ return TXRX_CONTINUE;
+
+ sta->rx_fragments++;
+ sta->rx_bytes += rx->skb->len;
+ sta->last_rssi = rx->u.rx.status->ssi;
+ sta->last_signal = rx->u.rx.status->signal;
+ sta->last_noise = rx->u.rx.status->noise;
+
+ if (!(rx->fc & IEEE80211_FCTL_MOREFRAGS)) {
+ /* Change STA power saving mode only in the end of a frame
+ * exchange sequence */
+ if ((sta->flags & WLAN_STA_PS) && !(rx->fc & IEEE80211_FCTL_PM))
+ rx->u.rx.sent_ps_buffered += ap_sta_ps_end(dev, sta);
+ else if (!(sta->flags & WLAN_STA_PS) &&
+ (rx->fc & IEEE80211_FCTL_PM))
+ ap_sta_ps_start(dev, sta);
+ }
+
+ /* Drop data::nullfunc frames silently, since they are used only to
+ * control station power saving mode. */
+ if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
+ (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_NULLFUNC) {
+ I802_DEBUG_INC(rx->local->rx_handlers_drop_nullfunc);
+ /* Update counter and free packet here to avoid counting this
+ * as a dropped packed. */
+ sta->rx_packets++;
+ dev_kfree_skb(rx->skb);
+ return TXRX_QUEUED;
+ }
+
+ return TXRX_CONTINUE;
+} /* ieee80211_rx_h_sta_process */
+
+static inline struct ieee80211_fragment_entry *
+ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata,
+ unsigned int frag, unsigned int seq, int rx_queue,
+ struct sk_buff **skb)
+{
+ struct ieee80211_fragment_entry *entry;
+ int idx;
+
+ idx = sdata->fragment_next;
+ entry = &sdata->fragments[sdata->fragment_next++];
+ if (sdata->fragment_next >= IEEE80211_FRAGMENT_MAX)
+ sdata->fragment_next = 0;
+
+ if (!skb_queue_empty(&entry->skb_list)) {
+#ifdef CONFIG_MAC80211_DEBUG
+ struct ieee80211_hdr *hdr =
+ (struct ieee80211_hdr *) entry->skb_list.next->data;
+ printk(KERN_DEBUG "%s: RX reassembly removed oldest "
+ "fragment entry (idx=%d age=%lu seq=%d last_frag=%d "
+ "addr1=" MAC_FMT " addr2=" MAC_FMT "\n",
+ sdata->dev->name, idx,
+ jiffies - entry->first_frag_time, entry->seq,
+ entry->last_frag, MAC_ARG(hdr->addr1),
+ MAC_ARG(hdr->addr2));
+#endif /* CONFIG_MAC80211_DEBUG */
+ __skb_queue_purge(&entry->skb_list);
+ }
+
+ __skb_queue_tail(&entry->skb_list, *skb); /* no need for locking */
+ *skb = NULL;
+ entry->first_frag_time = jiffies;
+ entry->seq = seq;
+ entry->rx_queue = rx_queue;
+ entry->last_frag = frag;
+ entry->ccmp = 0;
+ entry->extra_len = 0;
+
+ return entry;
+}
+
+static inline struct ieee80211_fragment_entry *
+ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata,
+ u16 fc, unsigned int frag, unsigned int seq,
+ int rx_queue, struct ieee80211_hdr *hdr)
+{
+ struct ieee80211_fragment_entry *entry;
+ int i, idx;
+
+ idx = sdata->fragment_next;
+ for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) {
+ struct ieee80211_hdr *f_hdr;
+ u16 f_fc;
+
+ idx--;
+ if (idx < 0)
+ idx = IEEE80211_FRAGMENT_MAX - 1;
+
+ entry = &sdata->fragments[idx];
+ if (skb_queue_empty(&entry->skb_list) || entry->seq != seq ||
+ entry->rx_queue != rx_queue ||
+ entry->last_frag + 1 != frag)
+ continue;
+
+ f_hdr = (struct ieee80211_hdr *) entry->skb_list.next->data;
+ f_fc = le16_to_cpu(f_hdr->frame_control);
+
+ if ((fc & IEEE80211_FCTL_FTYPE) != (f_fc & IEEE80211_FCTL_FTYPE) ||
+ compare_ether_addr(hdr->addr1, f_hdr->addr1) != 0 ||
+ compare_ether_addr(hdr->addr2, f_hdr->addr2) != 0)
+ continue;
+
+ if (entry->first_frag_time + 2 * HZ < jiffies) {
+ __skb_queue_purge(&entry->skb_list);
+ continue;
+ }
+ return entry;
+ }
+
+ return NULL;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_hdr *hdr;
+ u16 sc;
+ unsigned int frag, seq;
+ struct ieee80211_fragment_entry *entry;
+ struct sk_buff *skb;
+
+ hdr = (struct ieee80211_hdr *) rx->skb->data;
+ sc = le16_to_cpu(hdr->seq_ctrl);
+ frag = sc & IEEE80211_SCTL_FRAG;
+
+ if (likely((!(rx->fc & IEEE80211_FCTL_MOREFRAGS) && frag == 0) ||
+ (rx->skb)->len < 24 ||
+ is_multicast_ether_addr(hdr->addr1))) {
+ /* not fragmented */
+ goto out;
+ }
+ I802_DEBUG_INC(rx->local->rx_handlers_fragments);
+
+ seq = (sc & IEEE80211_SCTL_SEQ) >> 4;
+
+ if (frag == 0) {
+ /* This is the first fragment of a new frame. */
+ entry = ieee80211_reassemble_add(rx->sdata, frag, seq,
+ rx->u.rx.queue, &(rx->skb));
+ if (rx->key && rx->key->conf.alg == ALG_CCMP &&
+ (rx->fc & IEEE80211_FCTL_PROTECTED)) {
+ /* Store CCMP PN so that we can verify that the next
+ * fragment has a sequential PN value. */
+ entry->ccmp = 1;
+ memcpy(entry->last_pn,
+ rx->key->u.ccmp.rx_pn[rx->u.rx.queue],
+ CCMP_PN_LEN);
+ }
+ return TXRX_QUEUED;
+ }
+
+ /* This is a fragment for a frame that should already be pending in
+ * fragment cache. Add this fragment to the end of the pending entry.
+ */
+ entry = ieee80211_reassemble_find(rx->sdata, rx->fc, frag, seq,
+ rx->u.rx.queue, hdr);
+ if (!entry) {
+ I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag);
+ return TXRX_DROP;
+ }
+
+ /* Verify that MPDUs within one MSDU have sequential PN values.
+ * (IEEE 802.11i, 8.3.3.4.5) */
+ if (entry->ccmp) {
+ int i;
+ u8 pn[CCMP_PN_LEN], *rpn;
+ if (!rx->key || rx->key->conf.alg != ALG_CCMP)
+ return TXRX_DROP;
+ memcpy(pn, entry->last_pn, CCMP_PN_LEN);
+ for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
+ pn[i]++;
+ if (pn[i])
+ break;
+ }
+ rpn = rx->key->u.ccmp.rx_pn[rx->u.rx.queue];
+ if (memcmp(pn, rpn, CCMP_PN_LEN) != 0) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: defrag: CCMP PN not "
+ "sequential A2=" MAC_FMT
+ " PN=%02x%02x%02x%02x%02x%02x "
+ "(expected %02x%02x%02x%02x%02x%02x)\n",
+ rx->dev->name, MAC_ARG(hdr->addr2),
+ rpn[0], rpn[1], rpn[2], rpn[3], rpn[4],
+ rpn[5], pn[0], pn[1], pn[2], pn[3],
+ pn[4], pn[5]);
+ return TXRX_DROP;
+ }
+ memcpy(entry->last_pn, pn, CCMP_PN_LEN);
+ }
+
+ skb_pull(rx->skb, ieee80211_get_hdrlen(rx->fc));
+ __skb_queue_tail(&entry->skb_list, rx->skb);
+ entry->last_frag = frag;
+ entry->extra_len += rx->skb->len;
+ if (rx->fc & IEEE80211_FCTL_MOREFRAGS) {
+ rx->skb = NULL;
+ return TXRX_QUEUED;
+ }
+
+ rx->skb = __skb_dequeue(&entry->skb_list);
+ if (skb_tailroom(rx->skb) < entry->extra_len) {
+ I802_DEBUG_INC(rx->local->rx_expand_skb_head2);
+ if (unlikely(pskb_expand_head(rx->skb, 0, entry->extra_len,
+ GFP_ATOMIC))) {
+ I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag);
+ __skb_queue_purge(&entry->skb_list);
+ return TXRX_DROP;
+ }
+ }
+ while ((skb = __skb_dequeue(&entry->skb_list))) {
+ memcpy(skb_put(rx->skb, skb->len), skb->data, skb->len);
+ dev_kfree_skb(skb);
+ }
+
+ /* Complete frame has been reassembled - process it now */
+ rx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+
+ out:
+ if (rx->sta)
+ rx->sta->rx_packets++;
+ if (is_multicast_ether_addr(hdr->addr1))
+ rx->local->dot11MulticastReceivedFrameCount++;
+ else
+ ieee80211_led_rx(rx->local);
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
+{
+ struct sk_buff *skb;
+ int no_pending_pkts;
+
+ if (likely(!rx->sta ||
+ (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL ||
+ (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PSPOLL ||
+ !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)))
+ return TXRX_CONTINUE;
+
+ skb = skb_dequeue(&rx->sta->tx_filtered);
+ if (!skb) {
+ skb = skb_dequeue(&rx->sta->ps_tx_buf);
+ if (skb)
+ rx->local->total_ps_buffered--;
+ }
+ no_pending_pkts = skb_queue_empty(&rx->sta->tx_filtered) &&
+ skb_queue_empty(&rx->sta->ps_tx_buf);
+
+ if (skb) {
+ struct ieee80211_hdr *hdr =
+ (struct ieee80211_hdr *) skb->data;
+
+ /* tell TX path to send one frame even though the STA may
+ * still remain is PS mode after this frame exchange */
+ rx->sta->pspoll = 1;
+
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
+ printk(KERN_DEBUG "STA " MAC_FMT " aid %d: PS Poll (entries "
+ "after %d)\n",
+ MAC_ARG(rx->sta->addr), rx->sta->aid,
+ skb_queue_len(&rx->sta->ps_tx_buf));
+#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
+
+ /* Use MoreData flag to indicate whether there are more
+ * buffered frames for this STA */
+ if (no_pending_pkts) {
+ hdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREDATA);
+ rx->sta->flags &= ~WLAN_STA_TIM;
+ } else
+ hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA);
+
+ dev_queue_xmit(skb);
+
+ if (no_pending_pkts) {
+ if (rx->local->ops->set_tim)
+ rx->local->ops->set_tim(local_to_hw(rx->local),
+ rx->sta->aid, 0);
+ if (rx->sdata->bss)
+ bss_tim_clear(rx->local, rx->sdata->bss, rx->sta->aid);
+ }
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
+ } else if (!rx->u.rx.sent_ps_buffered) {
+ printk(KERN_DEBUG "%s: STA " MAC_FMT " sent PS Poll even "
+ "though there is no buffered frames for it\n",
+ rx->dev->name, MAC_ARG(rx->sta->addr));
+#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
+
+ }
+
+ /* Free PS Poll skb here instead of returning TXRX_DROP that would
+ * count as an dropped frame. */
+ dev_kfree_skb(rx->skb);
+
+ return TXRX_QUEUED;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx)
+{
+ u16 fc = rx->fc;
+ u8 *data = rx->skb->data;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) data;
+
+ if (!WLAN_FC_IS_QOS_DATA(fc))
+ return TXRX_CONTINUE;
+
+ /* remove the qos control field, update frame type and meta-data */
+ memmove(data + 2, data, ieee80211_get_hdrlen(fc) - 2);
+ hdr = (struct ieee80211_hdr *) skb_pull(rx->skb, 2);
+ /* change frame type to non QOS */
+ rx->fc = fc &= ~IEEE80211_STYPE_QOS_DATA;
+ hdr->frame_control = cpu_to_le16(fc);
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_802_1x_pae(struct ieee80211_txrx_data *rx)
+{
+ if (rx->sdata->eapol && ieee80211_is_eapol(rx->skb) &&
+ rx->sdata->type != IEEE80211_IF_TYPE_STA &&
+ (rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
+ return TXRX_CONTINUE;
+
+ if (unlikely(rx->sdata->ieee802_1x &&
+ (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
+ (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
+ (!rx->sta || !(rx->sta->flags & WLAN_STA_AUTHORIZED)) &&
+ !ieee80211_is_eapol(rx->skb))) {
+#ifdef CONFIG_MAC80211_DEBUG
+ struct ieee80211_hdr *hdr =
+ (struct ieee80211_hdr *) rx->skb->data;
+ printk(KERN_DEBUG "%s: dropped frame from " MAC_FMT
+ " (unauthorized port)\n", rx->dev->name,
+ MAC_ARG(hdr->addr2));
+#endif /* CONFIG_MAC80211_DEBUG */
+ return TXRX_DROP;
+ }
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_drop_unencrypted(struct ieee80211_txrx_data *rx)
+{
+ /*
+ * Pass through unencrypted frames if the hardware has
+ * decrypted them already.
+ */
+ if (rx->u.rx.status->flag & RX_FLAG_DECRYPTED)
+ return TXRX_CONTINUE;
+
+ /* Drop unencrypted frames if key is set. */
+ if (unlikely(!(rx->fc & IEEE80211_FCTL_PROTECTED) &&
+ (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
+ (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
+ rx->sdata->drop_unencrypted &&
+ (rx->sdata->eapol == 0 || !ieee80211_is_eapol(rx->skb)))) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: RX non-WEP frame, but expected "
+ "encryption\n", rx->dev->name);
+ return TXRX_DROP;
+ }
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
+{
+ struct net_device *dev = rx->dev;
+ struct ieee80211_local *local = rx->local;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
+ u16 fc, hdrlen, ethertype;
+ u8 *payload;
+ u8 dst[ETH_ALEN];
+ u8 src[ETH_ALEN];
+ struct sk_buff *skb = rx->skb, *skb2;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ fc = rx->fc;
+ if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
+ return TXRX_CONTINUE;
+
+ if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
+ return TXRX_DROP;
+
+ hdrlen = ieee80211_get_hdrlen(fc);
+
+ /* convert IEEE 802.11 header + possible LLC headers into Ethernet
+ * header
+ * IEEE 802.11 address fields:
+ * ToDS FromDS Addr1 Addr2 Addr3 Addr4
+ * 0 0 DA SA BSSID n/a
+ * 0 1 DA BSSID SA n/a
+ * 1 0 BSSID SA DA n/a
+ * 1 1 RA TA DA SA
+ */
+
+ switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
+ case IEEE80211_FCTL_TODS:
+ /* BSSID SA DA */
+ memcpy(dst, hdr->addr3, ETH_ALEN);
+ memcpy(src, hdr->addr2, ETH_ALEN);
+
+ if (unlikely(sdata->type != IEEE80211_IF_TYPE_AP &&
+ sdata->type != IEEE80211_IF_TYPE_VLAN)) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: dropped ToDS frame "
+ "(BSSID=" MAC_FMT
+ " SA=" MAC_FMT
+ " DA=" MAC_FMT ")\n",
+ dev->name,
+ MAC_ARG(hdr->addr1),
+ MAC_ARG(hdr->addr2),
+ MAC_ARG(hdr->addr3));
+ return TXRX_DROP;
+ }
+ break;
+ case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
+ /* RA TA DA SA */
+ memcpy(dst, hdr->addr3, ETH_ALEN);
+ memcpy(src, hdr->addr4, ETH_ALEN);
+
+ if (unlikely(sdata->type != IEEE80211_IF_TYPE_WDS)) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: dropped FromDS&ToDS "
+ "frame (RA=" MAC_FMT
+ " TA=" MAC_FMT " DA=" MAC_FMT
+ " SA=" MAC_FMT ")\n",
+ rx->dev->name,
+ MAC_ARG(hdr->addr1),
+ MAC_ARG(hdr->addr2),
+ MAC_ARG(hdr->addr3),
+ MAC_ARG(hdr->addr4));
+ return TXRX_DROP;
+ }
+ break;
+ case IEEE80211_FCTL_FROMDS:
+ /* DA BSSID SA */
+ memcpy(dst, hdr->addr1, ETH_ALEN);
+ memcpy(src, hdr->addr3, ETH_ALEN);
+
+ if (sdata->type != IEEE80211_IF_TYPE_STA ||
+ (is_multicast_ether_addr(dst) &&
+ !compare_ether_addr(src, dev->dev_addr)))
+ return TXRX_DROP;
+ break;
+ case 0:
+ /* DA SA BSSID */
+ memcpy(dst, hdr->addr1, ETH_ALEN);
+ memcpy(src, hdr->addr2, ETH_ALEN);
+
+ if (sdata->type != IEEE80211_IF_TYPE_IBSS) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: dropped IBSS frame (DA="
+ MAC_FMT " SA=" MAC_FMT " BSSID=" MAC_FMT
+ ")\n",
+ dev->name, MAC_ARG(hdr->addr1),
+ MAC_ARG(hdr->addr2),
+ MAC_ARG(hdr->addr3));
+ }
+ return TXRX_DROP;
+ }
+ break;
+ }
+
+ payload = skb->data + hdrlen;
+
+ if (unlikely(skb->len - hdrlen < 8)) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: RX too short data frame "
+ "payload\n", dev->name);
+ }
+ return TXRX_DROP;
+ }
+
+ ethertype = (payload[6] << 8) | payload[7];
+
+ if (likely((compare_ether_addr(payload, rfc1042_header) == 0 &&
+ ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
+ compare_ether_addr(payload, bridge_tunnel_header) == 0)) {
+ /* remove RFC1042 or Bridge-Tunnel encapsulation and
+ * replace EtherType */
+ skb_pull(skb, hdrlen + 6);
+ memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN);
+ memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN);
+ } else {
+ struct ethhdr *ehdr;
+ __be16 len;
+ skb_pull(skb, hdrlen);
+ len = htons(skb->len);
+ ehdr = (struct ethhdr *) skb_push(skb, sizeof(struct ethhdr));
+ memcpy(ehdr->h_dest, dst, ETH_ALEN);
+ memcpy(ehdr->h_source, src, ETH_ALEN);
+ ehdr->h_proto = len;
+ }
+ skb->dev = dev;
+
+ skb2 = NULL;
+
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += skb->len;
+
+ if (local->bridge_packets && (sdata->type == IEEE80211_IF_TYPE_AP
+ || sdata->type == IEEE80211_IF_TYPE_VLAN) &&
+ (rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
+ if (is_multicast_ether_addr(skb->data)) {
+ /* send multicast frames both to higher layers in
+ * local net stack and back to the wireless media */
+ skb2 = skb_copy(skb, GFP_ATOMIC);
+ if (!skb2 && net_ratelimit())
+ printk(KERN_DEBUG "%s: failed to clone "
+ "multicast frame\n", dev->name);
+ } else {
+ struct sta_info *dsta;
+ dsta = sta_info_get(local, skb->data);
+ if (dsta && !dsta->dev) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "Station with null "
+ "dev structure!\n");
+ } else if (dsta && dsta->dev == dev) {
+ /* Destination station is associated to this
+ * AP, so send the frame directly to it and
+ * do not pass the frame to local net stack.
+ */
+ skb2 = skb;
+ skb = NULL;
+ }
+ if (dsta)
+ sta_info_put(dsta);
+ }
+ }
+
+ if (skb) {
+ /* deliver to local stack */
+ skb->protocol = eth_type_trans(skb, dev);
+ memset(skb->cb, 0, sizeof(skb->cb));
+ netif_rx(skb);
+ }
+
+ if (skb2) {
+ /* send to wireless media */
+ skb2->protocol = __constant_htons(ETH_P_802_3);
+ skb_set_network_header(skb2, 0);
+ skb_set_mac_header(skb2, 0);
+ dev_queue_xmit(skb2);
+ }
+
+ return TXRX_QUEUED;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
+ return TXRX_DROP;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
+ if ((sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS) &&
+ !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
+ ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->u.rx.status);
+ else
+ return TXRX_DROP;
+
+ return TXRX_QUEUED;
+}
+
+static inline ieee80211_txrx_result __ieee80211_invoke_rx_handlers(
+ struct ieee80211_local *local,
+ ieee80211_rx_handler *handlers,
+ struct ieee80211_txrx_data *rx,
+ struct sta_info *sta)
+{
+ ieee80211_rx_handler *handler;
+ ieee80211_txrx_result res = TXRX_DROP;
+
+ for (handler = handlers; *handler != NULL; handler++) {
+ res = (*handler)(rx);
+
+ switch (res) {
+ case TXRX_CONTINUE:
+ continue;
+ case TXRX_DROP:
+ I802_DEBUG_INC(local->rx_handlers_drop);
+ if (sta)
+ sta->rx_dropped++;
+ break;
+ case TXRX_QUEUED:
+ I802_DEBUG_INC(local->rx_handlers_queued);
+ break;
+ }
+ break;
+ }
+
+ if (res == TXRX_DROP)
+ dev_kfree_skb(rx->skb);
+ return res;
+}
+
+static inline void ieee80211_invoke_rx_handlers(struct ieee80211_local *local,
+ ieee80211_rx_handler *handlers,
+ struct ieee80211_txrx_data *rx,
+ struct sta_info *sta)
+{
+ if (__ieee80211_invoke_rx_handlers(local, handlers, rx, sta) ==
+ TXRX_CONTINUE)
+ dev_kfree_skb(rx->skb);
+}
+
+static void ieee80211_rx_michael_mic_report(struct net_device *dev,
+ struct ieee80211_hdr *hdr,
+ struct sta_info *sta,
+ struct ieee80211_txrx_data *rx)
+{
+ int keyidx, hdrlen;
+
+ hdrlen = ieee80211_get_hdrlen_from_skb(rx->skb);
+ if (rx->skb->len >= hdrlen + 4)
+ keyidx = rx->skb->data[hdrlen + 3] >> 6;
+ else
+ keyidx = -1;
+
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: TKIP hwaccel reported Michael MIC "
+ "failure from " MAC_FMT " to " MAC_FMT " keyidx=%d\n",
+ dev->name, MAC_ARG(hdr->addr2), MAC_ARG(hdr->addr1),
+ keyidx);
+
+ if (!sta) {
+ /*
+ * Some hardware seem to generate incorrect Michael MIC
+ * reports; ignore them to avoid triggering countermeasures.
+ */
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
+ "error for unknown address " MAC_FMT "\n",
+ dev->name, MAC_ARG(hdr->addr2));
+ goto ignore;
+ }
+
+ if (!(rx->fc & IEEE80211_FCTL_PROTECTED)) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
+ "error for a frame with no PROTECTED flag (src "
+ MAC_FMT ")\n", dev->name, MAC_ARG(hdr->addr2));
+ goto ignore;
+ }
+
+ if (rx->sdata->type == IEEE80211_IF_TYPE_AP && keyidx) {
+ /*
+ * APs with pairwise keys should never receive Michael MIC
+ * errors for non-zero keyidx because these are reserved for
+ * group keys and only the AP is sending real multicast
+ * frames in the BSS.
+ */
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: ignored Michael MIC error for "
+ "a frame with non-zero keyidx (%d)"
+ " (src " MAC_FMT ")\n", dev->name, keyidx,
+ MAC_ARG(hdr->addr2));
+ goto ignore;
+ }
+
+ if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
+ ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
+ (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
+ "error for a frame that cannot be encrypted "
+ "(fc=0x%04x) (src " MAC_FMT ")\n",
+ dev->name, rx->fc, MAC_ARG(hdr->addr2));
+ goto ignore;
+ }
+
+ mac80211_ev_michael_mic_failure(rx->dev, keyidx, hdr);
+ ignore:
+ dev_kfree_skb(rx->skb);
+ rx->skb = NULL;
+}
+
+ieee80211_rx_handler ieee80211_rx_handlers[] =
+{
+ ieee80211_rx_h_if_stats,
+ ieee80211_rx_h_passive_scan,
+ ieee80211_rx_h_check,
+ ieee80211_rx_h_decrypt,
+ ieee80211_rx_h_sta_process,
+ ieee80211_rx_h_defragment,
+ ieee80211_rx_h_ps_poll,
+ ieee80211_rx_h_michael_mic_verify,
+ /* this must be after decryption - so header is counted in MPDU mic
+ * must be before pae and data, so QOS_DATA format frames
+ * are not passed to user space by these functions
+ */
+ ieee80211_rx_h_remove_qos_control,
+ ieee80211_rx_h_802_1x_pae,
+ ieee80211_rx_h_drop_unencrypted,
+ ieee80211_rx_h_data,
+ ieee80211_rx_h_mgmt,
+ NULL
+};
+
+/* main receive path */
+
+static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
+ u8 *bssid, struct ieee80211_txrx_data *rx,
+ struct ieee80211_hdr *hdr)
+{
+ int multicast = is_multicast_ether_addr(hdr->addr1);
+
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_STA:
+ if (!bssid)
+ return 0;
+ if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
+ if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
+ return 0;
+ rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+ } else if (!multicast &&
+ compare_ether_addr(sdata->dev->dev_addr,
+ hdr->addr1) != 0) {
+ if (!(sdata->dev->flags & IFF_PROMISC))
+ return 0;
+ rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+ }
+ break;
+ case IEEE80211_IF_TYPE_IBSS:
+ if (!bssid)
+ return 0;
+ if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
+ if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
+ return 0;
+ rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+ } else if (!multicast &&
+ compare_ether_addr(sdata->dev->dev_addr,
+ hdr->addr1) != 0) {
+ if (!(sdata->dev->flags & IFF_PROMISC))
+ return 0;
+ rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+ } else if (!rx->sta)
+ rx->sta = ieee80211_ibss_add_sta(sdata->dev, rx->skb,
+ bssid, hdr->addr2);
+ break;
+ case IEEE80211_IF_TYPE_VLAN:
+ case IEEE80211_IF_TYPE_AP:
+ if (!bssid) {
+ if (compare_ether_addr(sdata->dev->dev_addr,
+ hdr->addr1))
+ return 0;
+ } else if (!ieee80211_bssid_match(bssid,
+ sdata->dev->dev_addr)) {
+ if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
+ return 0;
+ rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+ }
+ if (sdata->dev == sdata->local->mdev &&
+ !(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
+ /* do not receive anything via
+ * master device when not scanning */
+ return 0;
+ break;
+ case IEEE80211_IF_TYPE_WDS:
+ if (bssid ||
+ (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
+ return 0;
+ if (compare_ether_addr(sdata->u.wds.remote_addr, hdr->addr2))
+ return 0;
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ /* take everything */
+ break;
+ case IEEE80211_IF_TYPE_INVALID:
+ /* should never get here */
+ WARN_ON(1);
+ break;
+ }
+
+ return 1;
+}
+
+/*
+ * This is the receive path handler. It is called by a low level driver when an
+ * 802.11 MPDU is received from the hardware.
+ */
+void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_rx_status *status)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_sub_if_data *sdata;
+ struct sta_info *sta;
+ struct ieee80211_hdr *hdr;
+ struct ieee80211_txrx_data rx;
+ u16 type;
+ int prepres;
+ struct ieee80211_sub_if_data *prev = NULL;
+ struct sk_buff *skb_new;
+ u8 *bssid;
+
+ /*
+ * key references and virtual interfaces are protected using RCU
+ * and this requires that we are in a read-side RCU section during
+ * receive processing
+ */
+ rcu_read_lock();
+
+ /*
+ * Frames with failed FCS/PLCP checksum are not returned,
+ * all other frames are returned without radiotap header
+ * if it was previously present.
+ * Also, frames with less than 16 bytes are dropped.
+ */
+ skb = ieee80211_rx_monitor(local, skb, status);
+ if (!skb) {
+ rcu_read_unlock();
+ return;
+ }
+
+ hdr = (struct ieee80211_hdr *) skb->data;
+ memset(&rx, 0, sizeof(rx));
+ rx.skb = skb;
+ rx.local = local;
+
+ rx.u.rx.status = status;
+ rx.fc = le16_to_cpu(hdr->frame_control);
+ type = rx.fc & IEEE80211_FCTL_FTYPE;
+
+ if (type == IEEE80211_FTYPE_DATA || type == IEEE80211_FTYPE_MGMT)
+ local->dot11ReceivedFragmentCount++;
+
+ sta = rx.sta = sta_info_get(local, hdr->addr2);
+ if (sta) {
+ rx.dev = rx.sta->dev;
+ rx.sdata = IEEE80211_DEV_TO_SUB_IF(rx.dev);
+ }
+
+ if ((status->flag & RX_FLAG_MMIC_ERROR)) {
+ ieee80211_rx_michael_mic_report(local->mdev, hdr, sta, &rx);
+ goto end;
+ }
+
+ if (unlikely(local->sta_scanning))
+ rx.flags |= IEEE80211_TXRXD_RXIN_SCAN;
+
+ if (__ieee80211_invoke_rx_handlers(local, local->rx_pre_handlers, &rx,
+ sta) != TXRX_CONTINUE)
+ goto end;
+ skb = rx.skb;
+
+ if (sta && !(sta->flags & (WLAN_STA_WDS | WLAN_STA_ASSOC_AP)) &&
+ !atomic_read(&local->iff_promiscs) &&
+ !is_multicast_ether_addr(hdr->addr1)) {
+ rx.flags |= IEEE80211_TXRXD_RXRA_MATCH;
+ ieee80211_invoke_rx_handlers(local, local->rx_handlers, &rx,
+ rx.sta);
+ sta_info_put(sta);
+ rcu_read_unlock();
+ return;
+ }
+
+ bssid = ieee80211_get_bssid(hdr, skb->len);
+
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ if (!netif_running(sdata->dev))
+ continue;
+
+ if (sdata->type == IEEE80211_IF_TYPE_MNTR)
+ continue;
+
+ rx.flags |= IEEE80211_TXRXD_RXRA_MATCH;
+ prepres = prepare_for_handlers(sdata, bssid, &rx, hdr);
+ /* prepare_for_handlers can change sta */
+ sta = rx.sta;
+
+ if (!prepres)
+ continue;
+
+ /*
+ * frame is destined for this interface, but if it's not
+ * also for the previous one we handle that after the
+ * loop to avoid copying the SKB once too much
+ */
+
+ if (!prev) {
+ prev = sdata;
+ continue;
+ }
+
+ /*
+ * frame was destined for the previous interface
+ * so invoke RX handlers for it
+ */
+
+ skb_new = skb_copy(skb, GFP_ATOMIC);
+ if (!skb_new) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: failed to copy "
+ "multicast frame for %s",
+ wiphy_name(local->hw.wiphy),
+ prev->dev->name);
+ continue;
+ }
+ rx.skb = skb_new;
+ rx.dev = prev->dev;
+ rx.sdata = prev;
+ ieee80211_invoke_rx_handlers(local, local->rx_handlers,
+ &rx, sta);
+ prev = sdata;
+ }
+ if (prev) {
+ rx.skb = skb;
+ rx.dev = prev->dev;
+ rx.sdata = prev;
+ ieee80211_invoke_rx_handlers(local, local->rx_handlers,
+ &rx, sta);
+ } else
+ dev_kfree_skb(skb);
+
+ end:
+ rcu_read_unlock();
+
+ if (sta)
+ sta_info_put(sta);
+}
+EXPORT_SYMBOL(__ieee80211_rx);
+
+/* This is a version of the rx handler that can be called from hard irq
+ * context. Post the skb on the queue and schedule the tasklet */
+void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_rx_status *status)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ BUILD_BUG_ON(sizeof(struct ieee80211_rx_status) > sizeof(skb->cb));
+
+ skb->dev = local->mdev;
+ /* copy status into skb->cb for use by tasklet */
+ memcpy(skb->cb, status, sizeof(*status));
+ skb->pkt_type = IEEE80211_RX_MSG;
+ skb_queue_tail(&local->skb_queue, skb);
+ tasklet_schedule(&local->tasklet);
+}
+EXPORT_SYMBOL(ieee80211_rx_irqsafe);
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
#include "sta_info.h"
-#include "debugfs_key.h"
#include "debugfs_sta.h"
/* Caller must hold local->sta_lock */
/* Caller must hold local->sta_lock */
-static void sta_info_hash_del(struct ieee80211_local *local,
- struct sta_info *sta, int dls)
+static int sta_info_hash_del(struct ieee80211_local *local,
+ struct sta_info *sta)
{
struct sta_info *s;
s = local->sta_hash[STA_HASH(sta->addr)];
if (!s)
- return;
- if (memcmp(s->addr, sta->addr, ETH_ALEN) == 0) {
- if (dls && !s->dls_sta)
- return;
+ return -ENOENT;
+ if (s == sta) {
local->sta_hash[STA_HASH(sta->addr)] = s->hnext;
- return;
+ return 0;
}
- while (s->hnext && memcmp(s->hnext->addr, sta->addr, ETH_ALEN) != 0)
+ while (s->hnext && s->hnext != sta)
s = s->hnext;
if (s->hnext) {
- if (dls && !s->hnext->dls_sta)
- return;
- s->hnext = s->hnext->hnext;
- } else
- printk(KERN_ERR "%s: could not remove STA " MAC_FMT " from "
- "hash table\n", local->mdev->name, MAC_ARG(sta->addr));
-}
+ s->hnext = sta->hnext;
+ return 0;
+ }
-static inline void __sta_info_get(struct sta_info *sta)
-{
- kref_get(&sta->kref);
+ return -ENOENT;
}
struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr)
{
struct sta_info *sta;
- spin_lock_bh(&local->sta_lock);
+ read_lock_bh(&local->sta_lock);
sta = local->sta_hash[STA_HASH(addr)];
while (sta) {
if (memcmp(sta->addr, addr, ETH_ALEN) == 0) {
}
sta = sta->hnext;
}
- spin_unlock_bh(&local->sta_lock);
+ read_unlock_bh(&local->sta_lock);
return sta;
}
EXPORT_SYMBOL(sta_info_get);
-struct sta_info *dls_info_get(struct ieee80211_local *local, u8 *addr)
-{
- struct sta_info *sta;
-
- spin_lock_bh(&local->sta_lock);
- sta = local->sta_hash[STA_HASH(addr)];
- while (sta) {
- if (memcmp(sta->addr, addr, ETH_ALEN) == 0) {
- if (!sta->dls_sta) {
- sta = NULL;
- break;
- }
- __sta_info_get(sta);
- break;
- }
- sta = sta->hnext;
- }
- spin_unlock_bh(&local->sta_lock);
-
- return sta;
-}
-
int sta_info_min_txrate_get(struct ieee80211_local *local)
{
struct sta_info *sta;
int min_txrate = 9999999;
int i;
- spin_lock_bh(&local->sta_lock);
+ read_lock_bh(&local->sta_lock);
mode = local->oper_hw_mode;
for (i = 0; i < STA_HASH_SIZE; i++) {
sta = local->sta_hash[i];
sta = sta->hnext;
}
}
- spin_unlock_bh(&local->sta_lock);
+ read_unlock_bh(&local->sta_lock);
if (min_txrate == 9999999)
min_txrate = 0;
}
rate_control_free_sta(sta->rate_ctrl, sta->rate_ctrl_priv);
rate_control_put(sta->rate_ctrl);
- if (sta->key)
- ieee80211_debugfs_key_sta_del(sta->key, sta);
kfree(sta);
}
sta->rate_ctrl_priv = rate_control_alloc_sta(sta->rate_ctrl, gfp);
if (!sta->rate_ctrl_priv) {
rate_control_put(sta->rate_ctrl);
- kref_put(&sta->kref, sta_info_release);
kfree(sta);
return NULL;
}
skb_queue_head_init(&sta->tx_filtered);
__sta_info_get(sta); /* sta used by caller, decremented by
* sta_info_put() */
- spin_lock_bh(&local->sta_lock);
+ write_lock_bh(&local->sta_lock);
list_add(&sta->list, &local->sta_list);
local->num_sta++;
sta_info_hash_add(local, sta);
- spin_unlock_bh(&local->sta_lock);
- if (local->ops->sta_table_notification)
- local->ops->sta_table_notification(local_to_hw(local),
- local->num_sta);
- sta->key_idx_compression = HW_KEY_IDX_INVALID;
+ if (local->ops->sta_notify)
+ local->ops->sta_notify(local_to_hw(local), dev->ifindex,
+ STA_NOTIFY_ADD, addr);
+ write_unlock_bh(&local->sta_lock);
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: Added STA " MAC_FMT "\n",
- local->mdev->name, MAC_ARG(addr));
+ wiphy_name(local->hw.wiphy), MAC_ARG(addr));
#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
#ifdef CONFIG_MAC80211_DEBUGFS
- if (!in_interrupt()) {
- sta->debugfs_registered = 1;
- ieee80211_sta_debugfs_add(sta);
- rate_control_add_sta_debugfs(sta);
- } else {
- /* debugfs entry adding might sleep, so schedule process
- * context task for adding entry for STAs that do not yet
- * have one. */
- queue_work(local->hw.workqueue, &local->sta_debugfs_add);
- }
+ /* debugfs entry adding might sleep, so schedule process
+ * context task for adding entry for STAs that do not yet
+ * have one. */
+ queue_work(local->hw.workqueue, &local->sta_debugfs_add);
#endif
return sta;
}
-static void finish_sta_info_free(struct ieee80211_local *local,
- struct sta_info *sta)
-{
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Removed STA " MAC_FMT "\n",
- local->mdev->name, MAC_ARG(sta->addr));
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
-
- if (sta->key) {
- ieee80211_debugfs_key_remove(sta->key);
- ieee80211_key_free(sta->key);
- sta->key = NULL;
- }
-
- rate_control_remove_sta_debugfs(sta);
- ieee80211_sta_debugfs_remove(sta);
-
- sta_info_put(sta);
-}
-
-static void sta_info_remove(struct sta_info *sta)
+/* Caller must hold local->sta_lock */
+void sta_info_remove(struct sta_info *sta)
{
struct ieee80211_local *local = sta->local;
struct ieee80211_sub_if_data *sdata;
- sta_info_hash_del(local, sta, 0);
+ /* don't do anything if we've been removed already */
+ if (sta_info_hash_del(local, sta))
+ return;
+
list_del(&sta->list);
sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
if (sta->flags & WLAN_STA_PS) {
}
local->num_sta--;
sta_info_remove_aid_ptr(sta);
+
}
-void sta_info_free(struct sta_info *sta, int locked)
+void sta_info_free(struct sta_info *sta)
{
struct sk_buff *skb;
struct ieee80211_local *local = sta->local;
- if (!locked) {
- spin_lock_bh(&local->sta_lock);
- sta_info_remove(sta);
- spin_unlock_bh(&local->sta_lock);
- } else {
- sta_info_remove(sta);
- }
- if (local->ops->sta_table_notification)
- local->ops->sta_table_notification(local_to_hw(local),
- local->num_sta);
+ might_sleep();
+
+ write_lock_bh(&local->sta_lock);
+ sta_info_remove(sta);
+ write_unlock_bh(&local->sta_lock);
while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
local->total_ps_buffered--;
- dev_kfree_skb_any(skb);
+ dev_kfree_skb(skb);
}
while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
- dev_kfree_skb_any(skb);
+ dev_kfree_skb(skb);
}
- if (sta->key) {
- if (local->ops->set_key) {
- struct ieee80211_key_conf *key;
- key = ieee80211_key_data2conf(local, sta->key);
- if (key) {
- local->ops->set_key(local_to_hw(local),
- DISABLE_KEY,
- sta->addr, key, sta->aid);
- kfree(key);
- }
- }
- } else if (sta->key_idx_compression != HW_KEY_IDX_INVALID) {
- struct ieee80211_key_conf conf;
- memset(&conf, 0, sizeof(conf));
- conf.hw_key_idx = sta->key_idx_compression;
- conf.alg = ALG_NULL;
- conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT;
- local->ops->set_key(local_to_hw(local), DISABLE_KEY,
- sta->addr, &conf, sta->aid);
- sta->key_idx_compression = HW_KEY_IDX_INVALID;
- }
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: Removed STA " MAC_FMT "\n",
+ wiphy_name(local->hw.wiphy), MAC_ARG(sta->addr));
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
-#ifdef CONFIG_MAC80211_DEBUGFS
- if (in_atomic()) {
- list_add(&sta->list, &local->deleted_sta_list);
- queue_work(local->hw.workqueue, &local->sta_debugfs_add);
- } else
-#endif
- finish_sta_info_free(local, sta);
+ ieee80211_key_free(sta->key);
+ sta->key = NULL;
+
+ if (local->ops->sta_notify)
+ local->ops->sta_notify(local_to_hw(local), sta->dev->ifindex,
+ STA_NOTIFY_REMOVE, sta->addr);
+
+ rate_control_remove_sta_debugfs(sta);
+ ieee80211_sta_debugfs_remove(sta);
+
+ sta_info_put(sta);
}
struct ieee80211_local *local = (struct ieee80211_local *) data;
struct sta_info *sta;
- spin_lock_bh(&local->sta_lock);
+ read_lock_bh(&local->sta_lock);
list_for_each_entry(sta, &local->sta_list, list) {
__sta_info_get(sta);
sta_info_cleanup_expire_buffered(local, sta);
sta_info_put(sta);
}
- spin_unlock_bh(&local->sta_lock);
+ read_unlock_bh(&local->sta_lock);
local->sta_cleanup.expires = jiffies + STA_INFO_CLEANUP_INTERVAL;
add_timer(&local->sta_cleanup);
container_of(work, struct ieee80211_local, sta_debugfs_add);
struct sta_info *sta, *tmp;
- while (1) {
- spin_lock_bh(&local->sta_lock);
- if (!list_empty(&local->deleted_sta_list)) {
- sta = list_entry(local->deleted_sta_list.next,
- struct sta_info, list);
- list_del(local->deleted_sta_list.next);
- } else
- sta = NULL;
- spin_unlock_bh(&local->sta_lock);
- if (!sta)
- break;
- finish_sta_info_free(local, sta);
- }
-
while (1) {
sta = NULL;
- spin_lock_bh(&local->sta_lock);
+ read_lock_bh(&local->sta_lock);
list_for_each_entry(tmp, &local->sta_list, list) {
- if (!tmp->debugfs_registered) {
+ if (!tmp->debugfs.dir) {
sta = tmp;
__sta_info_get(sta);
break;
}
}
- spin_unlock_bh(&local->sta_lock);
+ read_unlock_bh(&local->sta_lock);
if (!sta)
break;
- sta->debugfs_registered = 1;
ieee80211_sta_debugfs_add(sta);
rate_control_add_sta_debugfs(sta);
sta_info_put(sta);
void sta_info_init(struct ieee80211_local *local)
{
- spin_lock_init(&local->sta_lock);
+ rwlock_init(&local->sta_lock);
INIT_LIST_HEAD(&local->sta_list);
- INIT_LIST_HEAD(&local->deleted_sta_list);
init_timer(&local->sta_cleanup);
local->sta_cleanup.expires = jiffies + STA_INFO_CLEANUP_INTERVAL;
void sta_info_stop(struct ieee80211_local *local)
{
- struct sta_info *sta, *tmp;
-
del_timer(&local->sta_cleanup);
-
- list_for_each_entry_safe(sta, tmp, &local->sta_list, list) {
- /* sta_info_free must be called with 0 as the last
- * parameter to ensure all debugfs sta entries are
- * unregistered. We don't need locking at this
- * point. */
- sta_info_free(sta, 0);
- }
+ sta_info_flush(local, NULL);
}
void sta_info_remove_aid_ptr(struct sta_info *sta)
void sta_info_flush(struct ieee80211_local *local, struct net_device *dev)
{
struct sta_info *sta, *tmp;
+ LIST_HEAD(tmp_list);
- spin_lock_bh(&local->sta_lock);
+ write_lock_bh(&local->sta_lock);
list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
- if (!dev || dev == sta->dev)
- sta_info_free(sta, 1);
- spin_unlock_bh(&local->sta_lock);
+ if (!dev || dev == sta->dev) {
+ __sta_info_get(sta);
+ sta_info_remove(sta);
+ list_add_tail(&sta->list, &tmp_list);
+ }
+ write_unlock_bh(&local->sta_lock);
+
+ list_for_each_entry_safe(sta, tmp, &tmp_list, list) {
+ sta_info_free(sta);
+ sta_info_put(sta);
+ }
}
* send and receive non-IEEE 802.1X frames
*/
#define WLAN_STA_SHORT_PREAMBLE BIT(7)
+/* whether this is an AP that we are associated with as a client */
+#define WLAN_STA_ASSOC_AP BIT(8)
#define WLAN_STA_WME BIT(9)
-#define WLAN_STA_HT BIT(10)
#define WLAN_STA_WDS BIT(27)
int channel_use;
int channel_use_raw;
- u8 antenna_sel_tx;
- u8 antenna_sel_rx;
-
-
- int key_idx_compression; /* key table index for compression and TX
- * filtering; used only if sta->key is not
- * set */
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- int debugfs_registered;
-#endif
- unsigned int assoc_ap:1; /* whether this is an AP that we are
- * associated with as a client */
- unsigned int dls_sta:1; /* whether this stations is a DLS peer of us */
-
-#define DLS_STATUS_OK 0
-#define DLS_STATUS_NOLINK 1
- int dls_status;
- u32 dls_timeout;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- u32 wpa_trigger;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
- int vlan_id;
-
u16 listen_interval;
#ifdef CONFIG_MAC80211_DEBUGFS
*/
#define STA_INFO_CLEANUP_INTERVAL (10 * HZ)
+static inline void __sta_info_get(struct sta_info *sta)
+{
+ kref_get(&sta->kref);
+}
+
struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr);
int sta_info_min_txrate_get(struct ieee80211_local *local);
void sta_info_put(struct sta_info *sta);
struct sta_info * sta_info_add(struct ieee80211_local *local,
struct net_device *dev, u8 *addr, gfp_t gfp);
-void sta_info_free(struct sta_info *sta, int locked);
+void sta_info_remove(struct sta_info *sta);
+void sta_info_free(struct sta_info *sta);
void sta_info_init(struct ieee80211_local *local);
int sta_info_start(struct ieee80211_local *local);
void sta_info_stop(struct ieee80211_local *local);
*pos++ = iv0;
*pos++ = iv1;
*pos++ = iv2;
- *pos++ = (key->keyidx << 6) | (1 << 5) /* Ext IV */;
+ *pos++ = (key->conf.keyidx << 6) | (1 << 5) /* Ext IV */;
*pos++ = key->u.tkip.iv32 & 0xff;
*pos++ = (key->u.tkip.iv32 >> 8) & 0xff;
*pos++ = (key->u.tkip.iv32 >> 16) & 0xff;
void ieee80211_tkip_gen_phase1key(struct ieee80211_key *key, u8 *ta,
u16 *phase1key)
{
- tkip_mixing_phase1(ta, &key->key[ALG_TKIP_TEMP_ENCR_KEY],
+ tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
key->u.tkip.iv32, phase1key);
}
/* Calculate per-packet key */
if (key->u.tkip.iv16 == 0 || !key->u.tkip.tx_initialized) {
/* IV16 wrapped around - perform TKIP phase 1 */
- tkip_mixing_phase1(ta, &key->key[ALG_TKIP_TEMP_ENCR_KEY],
+ tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
key->u.tkip.iv32, key->u.tkip.p1k);
key->u.tkip.tx_initialized = 1;
}
- tkip_mixing_phase2(key->u.tkip.p1k, &key->key[ALG_TKIP_TEMP_ENCR_KEY],
+ tkip_mixing_phase2(key->u.tkip.p1k,
+ &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
key->u.tkip.iv16, rc4key);
}
int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
struct ieee80211_key *key,
u8 *payload, size_t payload_len, u8 *ta,
- int only_iv, int queue)
+ int only_iv, int queue,
+ u32 *out_iv32, u16 *out_iv16)
{
u32 iv32;
u32 iv16;
if (!(keyid & (1 << 5)))
return TKIP_DECRYPT_NO_EXT_IV;
- if ((keyid >> 6) != key->keyidx)
+ if ((keyid >> 6) != key->conf.keyidx)
return TKIP_DECRYPT_INVALID_KEYIDX;
if (key->u.tkip.rx_initialized[queue] &&
key->u.tkip.iv32_rx[queue] != iv32) {
key->u.tkip.rx_initialized[queue] = 1;
/* IV16 wrapped around - perform TKIP phase 1 */
- tkip_mixing_phase1(ta, &key->key[ALG_TKIP_TEMP_ENCR_KEY],
+ tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
iv32, key->u.tkip.p1k_rx[queue]);
#ifdef CONFIG_TKIP_DEBUG
{
" TK=", MAC_ARG(ta));
for (i = 0; i < 16; i++)
printk("%02x ",
- key->key[ALG_TKIP_TEMP_ENCR_KEY + i]);
+ key->conf.key[
+ ALG_TKIP_TEMP_ENCR_KEY + i]);
printk("\n");
printk(KERN_DEBUG "TKIP decrypt: P1K=");
for (i = 0; i < 5; i++)
}
tkip_mixing_phase2(key->u.tkip.p1k_rx[queue],
- &key->key[ALG_TKIP_TEMP_ENCR_KEY],
+ &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
iv16, rc4key);
#ifdef CONFIG_TKIP_DEBUG
{
res = ieee80211_wep_decrypt_data(tfm, rc4key, 16, pos, payload_len - 12);
done:
if (res == TKIP_DECRYPT_OK) {
- /* FIX: these should be updated only after Michael MIC has been
- * verified */
- /* Record previously received IV */
- key->u.tkip.iv32_rx[queue] = iv32;
- key->u.tkip.iv16_rx[queue] = iv16;
+ /*
+ * Record previously received IV, will be copied into the
+ * key information after MIC verification. It is possible
+ * that we don't catch replays of fragments but that's ok
+ * because the Michael MIC verication will then fail.
+ */
+ *out_iv32 = iv32;
+ *out_iv16 = iv16;
}
return res;
int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
struct ieee80211_key *key,
u8 *payload, size_t payload_len, u8 *ta,
- int only_iv, int queue);
+ int only_iv, int queue,
+ u32 *out_iv32, u16 *out_iv16);
#endif /* TKIP_H */
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *
+ * Transmit and frame generation functions.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/skbuff.h>
+#include <linux/etherdevice.h>
+#include <linux/bitmap.h>
+#include <linux/rcupdate.h>
+#include <net/ieee80211_radiotap.h>
+#include <net/cfg80211.h>
+#include <net/mac80211.h>
+#include <asm/unaligned.h>
+
+#include "ieee80211_i.h"
+#include "ieee80211_led.h"
+#include "wep.h"
+#include "wpa.h"
+#include "wme.h"
+#include "ieee80211_rate.h"
+
+#define IEEE80211_TX_OK 0
+#define IEEE80211_TX_AGAIN 1
+#define IEEE80211_TX_FRAG_AGAIN 2
+
+/* misc utils */
+
+static inline void ieee80211_include_sequence(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_hdr *hdr)
+{
+ /* Set the sequence number for this frame. */
+ hdr->seq_ctrl = cpu_to_le16(sdata->sequence);
+
+ /* Increase the sequence number. */
+ sdata->sequence = (sdata->sequence + 0x10) & IEEE80211_SCTL_SEQ;
+}
+
+#ifdef CONFIG_MAC80211_LOWTX_FRAME_DUMP
+static void ieee80211_dump_frame(const char *ifname, const char *title,
+ const struct sk_buff *skb)
+{
+ const struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ u16 fc;
+ int hdrlen;
+
+ printk(KERN_DEBUG "%s: %s (len=%d)", ifname, title, skb->len);
+ if (skb->len < 4) {
+ printk("\n");
+ return;
+ }
+
+ fc = le16_to_cpu(hdr->frame_control);
+ hdrlen = ieee80211_get_hdrlen(fc);
+ if (hdrlen > skb->len)
+ hdrlen = skb->len;
+ if (hdrlen >= 4)
+ printk(" FC=0x%04x DUR=0x%04x",
+ fc, le16_to_cpu(hdr->duration_id));
+ if (hdrlen >= 10)
+ printk(" A1=" MAC_FMT, MAC_ARG(hdr->addr1));
+ if (hdrlen >= 16)
+ printk(" A2=" MAC_FMT, MAC_ARG(hdr->addr2));
+ if (hdrlen >= 24)
+ printk(" A3=" MAC_FMT, MAC_ARG(hdr->addr3));
+ if (hdrlen >= 30)
+ printk(" A4=" MAC_FMT, MAC_ARG(hdr->addr4));
+ printk("\n");
+}
+#else /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
+static inline void ieee80211_dump_frame(const char *ifname, const char *title,
+ struct sk_buff *skb)
+{
+}
+#endif /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
+
+static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr,
+ int next_frag_len)
+{
+ int rate, mrate, erp, dur, i;
+ struct ieee80211_rate *txrate = tx->u.tx.rate;
+ struct ieee80211_local *local = tx->local;
+ struct ieee80211_hw_mode *mode = tx->u.tx.mode;
+
+ erp = txrate->flags & IEEE80211_RATE_ERP;
+
+ /*
+ * data and mgmt (except PS Poll):
+ * - during CFP: 32768
+ * - during contention period:
+ * if addr1 is group address: 0
+ * if more fragments = 0 and addr1 is individual address: time to
+ * transmit one ACK plus SIFS
+ * if more fragments = 1 and addr1 is individual address: time to
+ * transmit next fragment plus 2 x ACK plus 3 x SIFS
+ *
+ * IEEE 802.11, 9.6:
+ * - control response frame (CTS or ACK) shall be transmitted using the
+ * same rate as the immediately previous frame in the frame exchange
+ * sequence, if this rate belongs to the PHY mandatory rates, or else
+ * at the highest possible rate belonging to the PHY rates in the
+ * BSSBasicRateSet
+ */
+
+ if ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) {
+ /* TODO: These control frames are not currently sent by
+ * 80211.o, but should they be implemented, this function
+ * needs to be updated to support duration field calculation.
+ *
+ * RTS: time needed to transmit pending data/mgmt frame plus
+ * one CTS frame plus one ACK frame plus 3 x SIFS
+ * CTS: duration of immediately previous RTS minus time
+ * required to transmit CTS and its SIFS
+ * ACK: 0 if immediately previous directed data/mgmt had
+ * more=0, with more=1 duration in ACK frame is duration
+ * from previous frame minus time needed to transmit ACK
+ * and its SIFS
+ * PS Poll: BIT(15) | BIT(14) | aid
+ */
+ return 0;
+ }
+
+ /* data/mgmt */
+ if (0 /* FIX: data/mgmt during CFP */)
+ return 32768;
+
+ if (group_addr) /* Group address as the destination - no ACK */
+ return 0;
+
+ /* Individual destination address:
+ * IEEE 802.11, Ch. 9.6 (after IEEE 802.11g changes)
+ * CTS and ACK frames shall be transmitted using the highest rate in
+ * basic rate set that is less than or equal to the rate of the
+ * immediately previous frame and that is using the same modulation
+ * (CCK or OFDM). If no basic rate set matches with these requirements,
+ * the highest mandatory rate of the PHY that is less than or equal to
+ * the rate of the previous frame is used.
+ * Mandatory rates for IEEE 802.11g PHY: 1, 2, 5.5, 11, 6, 12, 24 Mbps
+ */
+ rate = -1;
+ mrate = 10; /* use 1 Mbps if everything fails */
+ for (i = 0; i < mode->num_rates; i++) {
+ struct ieee80211_rate *r = &mode->rates[i];
+ if (r->rate > txrate->rate)
+ break;
+
+ if (IEEE80211_RATE_MODULATION(txrate->flags) !=
+ IEEE80211_RATE_MODULATION(r->flags))
+ continue;
+
+ if (r->flags & IEEE80211_RATE_BASIC)
+ rate = r->rate;
+ else if (r->flags & IEEE80211_RATE_MANDATORY)
+ mrate = r->rate;
+ }
+ if (rate == -1) {
+ /* No matching basic rate found; use highest suitable mandatory
+ * PHY rate */
+ rate = mrate;
+ }
+
+ /* Time needed to transmit ACK
+ * (10 bytes + 4-byte FCS = 112 bits) plus SIFS; rounded up
+ * to closest integer */
+
+ dur = ieee80211_frame_duration(local, 10, rate, erp,
+ tx->sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE);
+
+ if (next_frag_len) {
+ /* Frame is fragmented: duration increases with time needed to
+ * transmit next fragment plus ACK and 2 x SIFS. */
+ dur *= 2; /* ACK + SIFS */
+ /* next fragment */
+ dur += ieee80211_frame_duration(local, next_frag_len,
+ txrate->rate, erp,
+ tx->sdata->flags &
+ IEEE80211_SDATA_SHORT_PREAMBLE);
+ }
+
+ return dur;
+}
+
+static inline int __ieee80211_queue_stopped(const struct ieee80211_local *local,
+ int queue)
+{
+ return test_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]);
+}
+
+static inline int __ieee80211_queue_pending(const struct ieee80211_local *local,
+ int queue)
+{
+ return test_bit(IEEE80211_LINK_STATE_PENDING, &local->state[queue]);
+}
+
+static int inline is_ieee80211_device(struct net_device *dev,
+ struct net_device *master)
+{
+ return (wdev_priv(dev->ieee80211_ptr) ==
+ wdev_priv(master->ieee80211_ptr));
+}
+
+/* tx handlers */
+
+static ieee80211_txrx_result
+ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
+{
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ struct sk_buff *skb = tx->skb;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+ u32 sta_flags;
+
+ if (unlikely(tx->flags & IEEE80211_TXRXD_TX_INJECTED))
+ return TXRX_CONTINUE;
+
+ if (unlikely(tx->local->sta_scanning != 0) &&
+ ((tx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
+ (tx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PROBE_REQ))
+ return TXRX_DROP;
+
+ if (tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED)
+ return TXRX_CONTINUE;
+
+ sta_flags = tx->sta ? tx->sta->flags : 0;
+
+ if (likely(tx->flags & IEEE80211_TXRXD_TXUNICAST)) {
+ if (unlikely(!(sta_flags & WLAN_STA_ASSOC) &&
+ tx->sdata->type != IEEE80211_IF_TYPE_IBSS &&
+ (tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: dropped data frame to not "
+ "associated station " MAC_FMT "\n",
+ tx->dev->name, MAC_ARG(hdr->addr1));
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+ I802_DEBUG_INC(tx->local->tx_handlers_drop_not_assoc);
+ return TXRX_DROP;
+ }
+ } else {
+ if (unlikely((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
+ tx->local->num_sta == 0 &&
+ tx->sdata->type != IEEE80211_IF_TYPE_IBSS)) {
+ /*
+ * No associated STAs - no need to send multicast
+ * frames.
+ */
+ return TXRX_DROP;
+ }
+ return TXRX_CONTINUE;
+ }
+
+ if (unlikely(/* !injected && */ tx->sdata->ieee802_1x &&
+ !(sta_flags & WLAN_STA_AUTHORIZED))) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: dropped frame to " MAC_FMT
+ " (unauthorized port)\n", tx->dev->name,
+ MAC_ARG(hdr->addr1));
+#endif
+ I802_DEBUG_INC(tx->local->tx_handlers_drop_unauth_port);
+ return TXRX_DROP;
+ }
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_tx_h_sequence(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
+
+ if (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control)) >= 24)
+ ieee80211_include_sequence(tx->sdata, hdr);
+
+ return TXRX_CONTINUE;
+}
+
+/* This function is called whenever the AP is about to exceed the maximum limit
+ * of buffered frames for power saving STAs. This situation should not really
+ * happen often during normal operation, so dropping the oldest buffered packet
+ * from each queue should be OK to make some room for new frames. */
+static void purge_old_ps_buffers(struct ieee80211_local *local)
+{
+ int total = 0, purged = 0;
+ struct sk_buff *skb;
+ struct ieee80211_sub_if_data *sdata;
+ struct sta_info *sta;
+
+ /*
+ * virtual interfaces are protected by RCU
+ */
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ struct ieee80211_if_ap *ap;
+ if (sdata->dev == local->mdev ||
+ sdata->type != IEEE80211_IF_TYPE_AP)
+ continue;
+ ap = &sdata->u.ap;
+ skb = skb_dequeue(&ap->ps_bc_buf);
+ if (skb) {
+ purged++;
+ dev_kfree_skb(skb);
+ }
+ total += skb_queue_len(&ap->ps_bc_buf);
+ }
+ rcu_read_unlock();
+
+ read_lock_bh(&local->sta_lock);
+ list_for_each_entry(sta, &local->sta_list, list) {
+ skb = skb_dequeue(&sta->ps_tx_buf);
+ if (skb) {
+ purged++;
+ dev_kfree_skb(skb);
+ }
+ total += skb_queue_len(&sta->ps_tx_buf);
+ }
+ read_unlock_bh(&local->sta_lock);
+
+ local->total_ps_buffered = total;
+ printk(KERN_DEBUG "%s: PS buffers full - purged %d frames\n",
+ wiphy_name(local->hw.wiphy), purged);
+}
+
+static inline ieee80211_txrx_result
+ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx)
+{
+ /* broadcast/multicast frame */
+ /* If any of the associated stations is in power save mode,
+ * the frame is buffered to be sent after DTIM beacon frame */
+ if ((tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) &&
+ tx->sdata->type != IEEE80211_IF_TYPE_WDS &&
+ tx->sdata->bss && atomic_read(&tx->sdata->bss->num_sta_ps) &&
+ !(tx->fc & IEEE80211_FCTL_ORDER)) {
+ if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
+ purge_old_ps_buffers(tx->local);
+ if (skb_queue_len(&tx->sdata->bss->ps_bc_buf) >=
+ AP_MAX_BC_BUFFER) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: BC TX buffer full - "
+ "dropping the oldest frame\n",
+ tx->dev->name);
+ }
+ dev_kfree_skb(skb_dequeue(&tx->sdata->bss->ps_bc_buf));
+ } else
+ tx->local->total_ps_buffered++;
+ skb_queue_tail(&tx->sdata->bss->ps_bc_buf, tx->skb);
+ return TXRX_QUEUED;
+ }
+
+ return TXRX_CONTINUE;
+}
+
+static inline ieee80211_txrx_result
+ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
+{
+ struct sta_info *sta = tx->sta;
+
+ if (unlikely(!sta ||
+ ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT &&
+ (tx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP)))
+ return TXRX_CONTINUE;
+
+ if (unlikely((sta->flags & WLAN_STA_PS) && !sta->pspoll)) {
+ struct ieee80211_tx_packet_data *pkt_data;
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
+ printk(KERN_DEBUG "STA " MAC_FMT " aid %d: PS buffer (entries "
+ "before %d)\n",
+ MAC_ARG(sta->addr), sta->aid,
+ skb_queue_len(&sta->ps_tx_buf));
+#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
+ sta->flags |= WLAN_STA_TIM;
+ if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
+ purge_old_ps_buffers(tx->local);
+ if (skb_queue_len(&sta->ps_tx_buf) >= STA_MAX_TX_BUFFER) {
+ struct sk_buff *old = skb_dequeue(&sta->ps_tx_buf);
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: STA " MAC_FMT " TX "
+ "buffer full - dropping oldest frame\n",
+ tx->dev->name, MAC_ARG(sta->addr));
+ }
+ dev_kfree_skb(old);
+ } else
+ tx->local->total_ps_buffered++;
+ /* Queue frame to be sent after STA sends an PS Poll frame */
+ if (skb_queue_empty(&sta->ps_tx_buf)) {
+ if (tx->local->ops->set_tim)
+ tx->local->ops->set_tim(local_to_hw(tx->local),
+ sta->aid, 1);
+ if (tx->sdata->bss)
+ bss_tim_set(tx->local, tx->sdata->bss, sta->aid);
+ }
+ pkt_data = (struct ieee80211_tx_packet_data *)tx->skb->cb;
+ pkt_data->jiffies = jiffies;
+ skb_queue_tail(&sta->ps_tx_buf, tx->skb);
+ return TXRX_QUEUED;
+ }
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
+ else if (unlikely(sta->flags & WLAN_STA_PS)) {
+ printk(KERN_DEBUG "%s: STA " MAC_FMT " in PS mode, but pspoll "
+ "set -> send frame\n", tx->dev->name,
+ MAC_ARG(sta->addr));
+ }
+#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
+ sta->pspoll = 0;
+
+ return TXRX_CONTINUE;
+}
+
+
+static ieee80211_txrx_result
+ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx)
+{
+ if (unlikely(tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED))
+ return TXRX_CONTINUE;
+
+ if (tx->flags & IEEE80211_TXRXD_TXUNICAST)
+ return ieee80211_tx_h_unicast_ps_buf(tx);
+ else
+ return ieee80211_tx_h_multicast_ps_buf(tx);
+}
+
+
+
+
+static ieee80211_txrx_result
+ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_key *key;
+
+ if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
+ tx->key = NULL;
+ else if (tx->sta && (key = rcu_dereference(tx->sta->key)))
+ tx->key = key;
+ else if ((key = rcu_dereference(tx->sdata->default_key)))
+ tx->key = key;
+ else if (tx->sdata->drop_unencrypted &&
+ !(tx->sdata->eapol && ieee80211_is_eapol(tx->skb))) {
+ I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted);
+ return TXRX_DROP;
+ } else {
+ tx->key = NULL;
+ tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+ }
+
+ if (tx->key) {
+ tx->key->tx_rx_count++;
+ /* TODO: add threshold stuff again */
+ }
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
+ size_t hdrlen, per_fragm, num_fragm, payload_len, left;
+ struct sk_buff **frags, *first, *frag;
+ int i;
+ u16 seq;
+ u8 *pos;
+ int frag_threshold = tx->local->fragmentation_threshold;
+
+ if (!(tx->flags & IEEE80211_TXRXD_FRAGMENTED))
+ return TXRX_CONTINUE;
+
+ first = tx->skb;
+
+ hdrlen = ieee80211_get_hdrlen(tx->fc);
+ payload_len = first->len - hdrlen;
+ per_fragm = frag_threshold - hdrlen - FCS_LEN;
+ num_fragm = (payload_len + per_fragm - 1) / per_fragm;
+
+ frags = kzalloc(num_fragm * sizeof(struct sk_buff *), GFP_ATOMIC);
+ if (!frags)
+ goto fail;
+
+ hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREFRAGS);
+ seq = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ;
+ pos = first->data + hdrlen + per_fragm;
+ left = payload_len - per_fragm;
+ for (i = 0; i < num_fragm - 1; i++) {
+ struct ieee80211_hdr *fhdr;
+ size_t copylen;
+
+ if (left <= 0)
+ goto fail;
+
+ /* reserve enough extra head and tail room for possible
+ * encryption */
+ frag = frags[i] =
+ dev_alloc_skb(tx->local->tx_headroom +
+ frag_threshold +
+ IEEE80211_ENCRYPT_HEADROOM +
+ IEEE80211_ENCRYPT_TAILROOM);
+ if (!frag)
+ goto fail;
+ /* Make sure that all fragments use the same priority so
+ * that they end up using the same TX queue */
+ frag->priority = first->priority;
+ skb_reserve(frag, tx->local->tx_headroom +
+ IEEE80211_ENCRYPT_HEADROOM);
+ fhdr = (struct ieee80211_hdr *) skb_put(frag, hdrlen);
+ memcpy(fhdr, first->data, hdrlen);
+ if (i == num_fragm - 2)
+ fhdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREFRAGS);
+ fhdr->seq_ctrl = cpu_to_le16(seq | ((i + 1) & IEEE80211_SCTL_FRAG));
+ copylen = left > per_fragm ? per_fragm : left;
+ memcpy(skb_put(frag, copylen), pos, copylen);
+
+ pos += copylen;
+ left -= copylen;
+ }
+ skb_trim(first, hdrlen + per_fragm);
+
+ tx->u.tx.num_extra_frag = num_fragm - 1;
+ tx->u.tx.extra_frag = frags;
+
+ return TXRX_CONTINUE;
+
+ fail:
+ printk(KERN_DEBUG "%s: failed to fragment frame\n", tx->dev->name);
+ if (frags) {
+ for (i = 0; i < num_fragm - 1; i++)
+ if (frags[i])
+ dev_kfree_skb(frags[i]);
+ kfree(frags);
+ }
+ I802_DEBUG_INC(tx->local->tx_handlers_drop_fragment);
+ return TXRX_DROP;
+}
+
+static ieee80211_txrx_result
+ieee80211_tx_h_encrypt(struct ieee80211_txrx_data *tx)
+{
+ if (!tx->key)
+ return TXRX_CONTINUE;
+
+ switch (tx->key->conf.alg) {
+ case ALG_WEP:
+ return ieee80211_crypto_wep_encrypt(tx);
+ case ALG_TKIP:
+ return ieee80211_crypto_tkip_encrypt(tx);
+ case ALG_CCMP:
+ return ieee80211_crypto_ccmp_encrypt(tx);
+ }
+
+ /* not reached */
+ WARN_ON(1);
+ return TXRX_DROP;
+}
+
+static ieee80211_txrx_result
+ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
+{
+ struct rate_control_extra extra;
+
+ if (likely(!tx->u.tx.rate)) {
+ memset(&extra, 0, sizeof(extra));
+ extra.mode = tx->u.tx.mode;
+ extra.ethertype = tx->ethertype;
+
+ tx->u.tx.rate = rate_control_get_rate(tx->local, tx->dev,
+ tx->skb, &extra);
+ if (unlikely(extra.probe != NULL)) {
+ tx->u.tx.control->flags |=
+ IEEE80211_TXCTL_RATE_CTRL_PROBE;
+ tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
+ tx->u.tx.control->alt_retry_rate = tx->u.tx.rate->val;
+ tx->u.tx.rate = extra.probe;
+ } else
+ tx->u.tx.control->alt_retry_rate = -1;
+
+ if (!tx->u.tx.rate)
+ return TXRX_DROP;
+ } else
+ tx->u.tx.control->alt_retry_rate = -1;
+
+ if (tx->u.tx.mode->mode == MODE_IEEE80211G &&
+ (tx->sdata->flags & IEEE80211_SDATA_USE_PROTECTION) &&
+ (tx->flags & IEEE80211_TXRXD_FRAGMENTED) && extra.nonerp) {
+ tx->u.tx.last_frag_rate = tx->u.tx.rate;
+ if (extra.probe)
+ tx->flags &= ~IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
+ else
+ tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
+ tx->u.tx.rate = extra.nonerp;
+ tx->u.tx.control->rate = extra.nonerp;
+ tx->u.tx.control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
+ } else {
+ tx->u.tx.last_frag_rate = tx->u.tx.rate;
+ tx->u.tx.control->rate = tx->u.tx.rate;
+ }
+ tx->u.tx.control->tx_rate = tx->u.tx.rate->val;
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
+ u16 fc = le16_to_cpu(hdr->frame_control);
+ u16 dur;
+ struct ieee80211_tx_control *control = tx->u.tx.control;
+ struct ieee80211_hw_mode *mode = tx->u.tx.mode;
+
+ if (!control->retry_limit) {
+ if (!is_multicast_ether_addr(hdr->addr1)) {
+ if (tx->skb->len + FCS_LEN > tx->local->rts_threshold
+ && tx->local->rts_threshold <
+ IEEE80211_MAX_RTS_THRESHOLD) {
+ control->flags |=
+ IEEE80211_TXCTL_USE_RTS_CTS;
+ control->flags |=
+ IEEE80211_TXCTL_LONG_RETRY_LIMIT;
+ control->retry_limit =
+ tx->local->long_retry_limit;
+ } else {
+ control->retry_limit =
+ tx->local->short_retry_limit;
+ }
+ } else {
+ control->retry_limit = 1;
+ }
+ }
+
+ if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) {
+ /* Do not use multiple retry rates when sending fragmented
+ * frames.
+ * TODO: The last fragment could still use multiple retry
+ * rates. */
+ control->alt_retry_rate = -1;
+ }
+
+ /* Use CTS protection for unicast frames sent using extended rates if
+ * there are associated non-ERP stations and RTS/CTS is not configured
+ * for the frame. */
+ if (mode->mode == MODE_IEEE80211G &&
+ (tx->u.tx.rate->flags & IEEE80211_RATE_ERP) &&
+ (tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
+ (tx->sdata->flags & IEEE80211_SDATA_USE_PROTECTION) &&
+ !(control->flags & IEEE80211_TXCTL_USE_RTS_CTS))
+ control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT;
+
+ /* Transmit data frames using short preambles if the driver supports
+ * short preambles at the selected rate and short preambles are
+ * available on the network at the current point in time. */
+ if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
+ (tx->u.tx.rate->flags & IEEE80211_RATE_PREAMBLE2) &&
+ (tx->sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
+ (!tx->sta || (tx->sta->flags & WLAN_STA_SHORT_PREAMBLE))) {
+ tx->u.tx.control->tx_rate = tx->u.tx.rate->val2;
+ }
+
+ /* Setup duration field for the first fragment of the frame. Duration
+ * for remaining fragments will be updated when they are being sent
+ * to low-level driver in ieee80211_tx(). */
+ dur = ieee80211_duration(tx, is_multicast_ether_addr(hdr->addr1),
+ (tx->flags & IEEE80211_TXRXD_FRAGMENTED) ?
+ tx->u.tx.extra_frag[0]->len : 0);
+ hdr->duration_id = cpu_to_le16(dur);
+
+ if ((control->flags & IEEE80211_TXCTL_USE_RTS_CTS) ||
+ (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) {
+ struct ieee80211_rate *rate;
+
+ /* Do not use multiple retry rates when using RTS/CTS */
+ control->alt_retry_rate = -1;
+
+ /* Use min(data rate, max base rate) as CTS/RTS rate */
+ rate = tx->u.tx.rate;
+ while (rate > mode->rates &&
+ !(rate->flags & IEEE80211_RATE_BASIC))
+ rate--;
+
+ control->rts_cts_rate = rate->val;
+ control->rts_rate = rate;
+ }
+
+ if (tx->sta) {
+ tx->sta->tx_packets++;
+ tx->sta->tx_fragments++;
+ tx->sta->tx_bytes += tx->skb->len;
+ if (tx->u.tx.extra_frag) {
+ int i;
+ tx->sta->tx_fragments += tx->u.tx.num_extra_frag;
+ for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
+ tx->sta->tx_bytes +=
+ tx->u.tx.extra_frag[i]->len;
+ }
+ }
+ }
+
+ /*
+ * Tell hardware to not encrypt when we had sw crypto.
+ * Because we use the same flag to internally indicate that
+ * no (software) encryption should be done, we have to set it
+ * after all crypto handlers.
+ */
+ if (tx->key && !(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
+ tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_local *local = tx->local;
+ struct ieee80211_hw_mode *mode = tx->u.tx.mode;
+ struct sk_buff *skb = tx->skb;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ u32 load = 0, hdrtime;
+
+ /* TODO: this could be part of tx_status handling, so that the number
+ * of retries would be known; TX rate should in that case be stored
+ * somewhere with the packet */
+
+ /* Estimate total channel use caused by this frame */
+
+ /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values,
+ * 1 usec = 1/8 * (1080 / 10) = 13.5 */
+
+ if (mode->mode == MODE_IEEE80211A ||
+ (mode->mode == MODE_IEEE80211G &&
+ tx->u.tx.rate->flags & IEEE80211_RATE_ERP))
+ hdrtime = CHAN_UTIL_HDR_SHORT;
+ else
+ hdrtime = CHAN_UTIL_HDR_LONG;
+
+ load = hdrtime;
+ if (!is_multicast_ether_addr(hdr->addr1))
+ load += hdrtime;
+
+ if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_RTS_CTS)
+ load += 2 * hdrtime;
+ else if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
+ load += hdrtime;
+
+ load += skb->len * tx->u.tx.rate->rate_inv;
+
+ if (tx->u.tx.extra_frag) {
+ int i;
+ for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
+ load += 2 * hdrtime;
+ load += tx->u.tx.extra_frag[i]->len *
+ tx->u.tx.rate->rate;
+ }
+ }
+
+ /* Divide channel_use by 8 to avoid wrapping around the counter */
+ load >>= CHAN_UTIL_SHIFT;
+ local->channel_use_raw += load;
+ if (tx->sta)
+ tx->sta->channel_use_raw += load;
+ tx->sdata->channel_use_raw += load;
+
+ return TXRX_CONTINUE;
+}
+
+/* TODO: implement register/unregister functions for adding TX/RX handlers
+ * into ordered list */
+
+ieee80211_tx_handler ieee80211_tx_handlers[] =
+{
+ ieee80211_tx_h_check_assoc,
+ ieee80211_tx_h_sequence,
+ ieee80211_tx_h_ps_buf,
+ ieee80211_tx_h_select_key,
+ ieee80211_tx_h_michael_mic_add,
+ ieee80211_tx_h_fragment,
+ ieee80211_tx_h_encrypt,
+ ieee80211_tx_h_rate_ctrl,
+ ieee80211_tx_h_misc,
+ ieee80211_tx_h_load_stats,
+ NULL
+};
+
+/* actual transmit path */
+
+/*
+ * deal with packet injection down monitor interface
+ * with Radiotap Header -- only called for monitor mode interface
+ */
+static ieee80211_txrx_result
+__ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
+ struct sk_buff *skb)
+{
+ /*
+ * this is the moment to interpret and discard the radiotap header that
+ * must be at the start of the packet injected in Monitor mode
+ *
+ * Need to take some care with endian-ness since radiotap
+ * args are little-endian
+ */
+
+ struct ieee80211_radiotap_iterator iterator;
+ struct ieee80211_radiotap_header *rthdr =
+ (struct ieee80211_radiotap_header *) skb->data;
+ struct ieee80211_hw_mode *mode = tx->local->hw.conf.mode;
+ int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len);
+ struct ieee80211_tx_control *control = tx->u.tx.control;
+
+ control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+ tx->flags |= IEEE80211_TXRXD_TX_INJECTED;
+ tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
+
+ /*
+ * for every radiotap entry that is present
+ * (ieee80211_radiotap_iterator_next returns -ENOENT when no more
+ * entries present, or -EINVAL on error)
+ */
+
+ while (!ret) {
+ int i, target_rate;
+
+ ret = ieee80211_radiotap_iterator_next(&iterator);
+
+ if (ret)
+ continue;
+
+ /* see if this argument is something we can use */
+ switch (iterator.this_arg_index) {
+ /*
+ * You must take care when dereferencing iterator.this_arg
+ * for multibyte types... the pointer is not aligned. Use
+ * get_unaligned((type *)iterator.this_arg) to dereference
+ * iterator.this_arg for type "type" safely on all arches.
+ */
+ case IEEE80211_RADIOTAP_RATE:
+ /*
+ * radiotap rate u8 is in 500kbps units eg, 0x02=1Mbps
+ * ieee80211 rate int is in 100kbps units eg, 0x0a=1Mbps
+ */
+ target_rate = (*iterator.this_arg) * 5;
+ for (i = 0; i < mode->num_rates; i++) {
+ struct ieee80211_rate *r = &mode->rates[i];
+
+ if (r->rate == target_rate) {
+ tx->u.tx.rate = r;
+ break;
+ }
+ }
+ break;
+
+ case IEEE80211_RADIOTAP_ANTENNA:
+ /*
+ * radiotap uses 0 for 1st ant, mac80211 is 1 for
+ * 1st ant
+ */
+ control->antenna_sel_tx = (*iterator.this_arg) + 1;
+ break;
+
+ case IEEE80211_RADIOTAP_DBM_TX_POWER:
+ control->power_level = *iterator.this_arg;
+ break;
+
+ case IEEE80211_RADIOTAP_FLAGS:
+ if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FCS) {
+ /*
+ * this indicates that the skb we have been
+ * handed has the 32-bit FCS CRC at the end...
+ * we should react to that by snipping it off
+ * because it will be recomputed and added
+ * on transmission
+ */
+ if (skb->len < (iterator.max_length + FCS_LEN))
+ return TXRX_DROP;
+
+ skb_trim(skb, skb->len - FCS_LEN);
+ }
+ if (*iterator.this_arg & IEEE80211_RADIOTAP_F_WEP)
+ control->flags &=
+ ~IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+ if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG)
+ tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+ break;
+
+ /*
+ * Please update the file
+ * Documentation/networking/mac80211-injection.txt
+ * when parsing new fields here.
+ */
+
+ default:
+ break;
+ }
+ }
+
+ if (ret != -ENOENT) /* ie, if we didn't simply run out of fields */
+ return TXRX_DROP;
+
+ /*
+ * remove the radiotap header
+ * iterator->max_length was sanity-checked against
+ * skb->len by iterator init
+ */
+ skb_pull(skb, iterator.max_length);
+
+ return TXRX_CONTINUE;
+}
+
+/*
+ * initialises @tx
+ */
+static ieee80211_txrx_result
+__ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
+ struct sk_buff *skb,
+ struct net_device *dev,
+ struct ieee80211_tx_control *control)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hdr *hdr;
+ struct ieee80211_sub_if_data *sdata;
+ ieee80211_txrx_result res = TXRX_CONTINUE;
+
+ int hdrlen;
+
+ memset(tx, 0, sizeof(*tx));
+ tx->skb = skb;
+ tx->dev = dev; /* use original interface */
+ tx->local = local;
+ tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ tx->u.tx.control = control;
+ /*
+ * Set this flag (used below to indicate "automatic fragmentation"),
+ * it will be cleared/left by radiotap as desired.
+ */
+ tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+
+ /* process and remove the injection radiotap header */
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (unlikely(sdata->type == IEEE80211_IF_TYPE_MNTR)) {
+ if (__ieee80211_parse_tx_radiotap(tx, skb) == TXRX_DROP)
+ return TXRX_DROP;
+
+ /*
+ * __ieee80211_parse_tx_radiotap has now removed
+ * the radiotap header that was present and pre-filled
+ * 'tx' with tx control information.
+ */
+ }
+
+ hdr = (struct ieee80211_hdr *) skb->data;
+
+ tx->sta = sta_info_get(local, hdr->addr1);
+ tx->fc = le16_to_cpu(hdr->frame_control);
+
+ if (is_multicast_ether_addr(hdr->addr1)) {
+ tx->flags &= ~IEEE80211_TXRXD_TXUNICAST;
+ control->flags |= IEEE80211_TXCTL_NO_ACK;
+ } else {
+ tx->flags |= IEEE80211_TXRXD_TXUNICAST;
+ control->flags &= ~IEEE80211_TXCTL_NO_ACK;
+ }
+
+ if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) {
+ if ((tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
+ skb->len + FCS_LEN > local->fragmentation_threshold &&
+ !local->ops->set_frag_threshold)
+ tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+ else
+ tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
+ }
+
+ if (!tx->sta)
+ control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
+ else if (tx->sta->clear_dst_mask) {
+ control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
+ tx->sta->clear_dst_mask = 0;
+ }
+
+ hdrlen = ieee80211_get_hdrlen(tx->fc);
+ if (skb->len > hdrlen + sizeof(rfc1042_header) + 2) {
+ u8 *pos = &skb->data[hdrlen + sizeof(rfc1042_header)];
+ tx->ethertype = (pos[0] << 8) | pos[1];
+ }
+ control->flags |= IEEE80211_TXCTL_FIRST_FRAGMENT;
+
+ return res;
+}
+
+/* Device in tx->dev has a reference added; use dev_put(tx->dev) when
+ * finished with it.
+ *
+ * NB: @tx is uninitialised when passed in here
+ */
+static int ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
+ struct sk_buff *skb,
+ struct net_device *mdev,
+ struct ieee80211_tx_control *control)
+{
+ struct ieee80211_tx_packet_data *pkt_data;
+ struct net_device *dev;
+
+ pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
+ dev = dev_get_by_index(pkt_data->ifindex);
+ if (unlikely(dev && !is_ieee80211_device(dev, mdev))) {
+ dev_put(dev);
+ dev = NULL;
+ }
+ if (unlikely(!dev))
+ return -ENODEV;
+ /* initialises tx with control */
+ __ieee80211_tx_prepare(tx, skb, dev, control);
+ return 0;
+}
+
+static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
+ struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_tx_control *control = tx->u.tx.control;
+ int ret, i;
+
+ if (!ieee80211_qdisc_installed(local->mdev) &&
+ __ieee80211_queue_stopped(local, 0)) {
+ netif_stop_queue(local->mdev);
+ return IEEE80211_TX_AGAIN;
+ }
+ if (skb) {
+ ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
+ "TX to low-level driver", skb);
+ ret = local->ops->tx(local_to_hw(local), skb, control);
+ if (ret)
+ return IEEE80211_TX_AGAIN;
+ local->mdev->trans_start = jiffies;
+ ieee80211_led_tx(local, 1);
+ }
+ if (tx->u.tx.extra_frag) {
+ control->flags &= ~(IEEE80211_TXCTL_USE_RTS_CTS |
+ IEEE80211_TXCTL_USE_CTS_PROTECT |
+ IEEE80211_TXCTL_CLEAR_DST_MASK |
+ IEEE80211_TXCTL_FIRST_FRAGMENT);
+ for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
+ if (!tx->u.tx.extra_frag[i])
+ continue;
+ if (__ieee80211_queue_stopped(local, control->queue))
+ return IEEE80211_TX_FRAG_AGAIN;
+ if (i == tx->u.tx.num_extra_frag) {
+ control->tx_rate = tx->u.tx.last_frag_hwrate;
+ control->rate = tx->u.tx.last_frag_rate;
+ if (tx->flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG)
+ control->flags |=
+ IEEE80211_TXCTL_RATE_CTRL_PROBE;
+ else
+ control->flags &=
+ ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
+ }
+
+ ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
+ "TX to low-level driver",
+ tx->u.tx.extra_frag[i]);
+ ret = local->ops->tx(local_to_hw(local),
+ tx->u.tx.extra_frag[i],
+ control);
+ if (ret)
+ return IEEE80211_TX_FRAG_AGAIN;
+ local->mdev->trans_start = jiffies;
+ ieee80211_led_tx(local, 1);
+ tx->u.tx.extra_frag[i] = NULL;
+ }
+ kfree(tx->u.tx.extra_frag);
+ tx->u.tx.extra_frag = NULL;
+ }
+ return IEEE80211_TX_OK;
+}
+
+static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
+ struct ieee80211_tx_control *control)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
+ ieee80211_tx_handler *handler;
+ struct ieee80211_txrx_data tx;
+ ieee80211_txrx_result res = TXRX_DROP, res_prepare;
+ int ret, i;
+
+ WARN_ON(__ieee80211_queue_pending(local, control->queue));
+
+ if (unlikely(skb->len < 10)) {
+ dev_kfree_skb(skb);
+ return 0;
+ }
+
+ /* initialises tx */
+ res_prepare = __ieee80211_tx_prepare(&tx, skb, dev, control);
+
+ if (res_prepare == TXRX_DROP) {
+ dev_kfree_skb(skb);
+ return 0;
+ }
+
+ /*
+ * key references are protected using RCU and this requires that
+ * we are in a read-site RCU section during receive processing
+ */
+ rcu_read_lock();
+
+ sta = tx.sta;
+ tx.u.tx.mode = local->hw.conf.mode;
+
+ for (handler = local->tx_handlers; *handler != NULL;
+ handler++) {
+ res = (*handler)(&tx);
+ if (res != TXRX_CONTINUE)
+ break;
+ }
+
+ skb = tx.skb; /* handlers are allowed to change skb */
+
+ if (sta)
+ sta_info_put(sta);
+
+ if (unlikely(res == TXRX_DROP)) {
+ I802_DEBUG_INC(local->tx_handlers_drop);
+ goto drop;
+ }
+
+ if (unlikely(res == TXRX_QUEUED)) {
+ I802_DEBUG_INC(local->tx_handlers_queued);
+ rcu_read_unlock();
+ return 0;
+ }
+
+ if (tx.u.tx.extra_frag) {
+ for (i = 0; i < tx.u.tx.num_extra_frag; i++) {
+ int next_len, dur;
+ struct ieee80211_hdr *hdr =
+ (struct ieee80211_hdr *)
+ tx.u.tx.extra_frag[i]->data;
+
+ if (i + 1 < tx.u.tx.num_extra_frag) {
+ next_len = tx.u.tx.extra_frag[i + 1]->len;
+ } else {
+ next_len = 0;
+ tx.u.tx.rate = tx.u.tx.last_frag_rate;
+ tx.u.tx.last_frag_hwrate = tx.u.tx.rate->val;
+ }
+ dur = ieee80211_duration(&tx, 0, next_len);
+ hdr->duration_id = cpu_to_le16(dur);
+ }
+ }
+
+retry:
+ ret = __ieee80211_tx(local, skb, &tx);
+ if (ret) {
+ struct ieee80211_tx_stored_packet *store =
+ &local->pending_packet[control->queue];
+
+ if (ret == IEEE80211_TX_FRAG_AGAIN)
+ skb = NULL;
+ set_bit(IEEE80211_LINK_STATE_PENDING,
+ &local->state[control->queue]);
+ smp_mb();
+ /* When the driver gets out of buffers during sending of
+ * fragments and calls ieee80211_stop_queue, there is
+ * a small window between IEEE80211_LINK_STATE_XOFF and
+ * IEEE80211_LINK_STATE_PENDING flags are set. If a buffer
+ * gets available in that window (i.e. driver calls
+ * ieee80211_wake_queue), we would end up with ieee80211_tx
+ * called with IEEE80211_LINK_STATE_PENDING. Prevent this by
+ * continuing transmitting here when that situation is
+ * possible to have happened. */
+ if (!__ieee80211_queue_stopped(local, control->queue)) {
+ clear_bit(IEEE80211_LINK_STATE_PENDING,
+ &local->state[control->queue]);
+ goto retry;
+ }
+ memcpy(&store->control, control,
+ sizeof(struct ieee80211_tx_control));
+ store->skb = skb;
+ store->extra_frag = tx.u.tx.extra_frag;
+ store->num_extra_frag = tx.u.tx.num_extra_frag;
+ store->last_frag_hwrate = tx.u.tx.last_frag_hwrate;
+ store->last_frag_rate = tx.u.tx.last_frag_rate;
+ store->last_frag_rate_ctrl_probe =
+ !!(tx.flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG);
+ }
+ rcu_read_unlock();
+ return 0;
+
+ drop:
+ if (skb)
+ dev_kfree_skb(skb);
+ for (i = 0; i < tx.u.tx.num_extra_frag; i++)
+ if (tx.u.tx.extra_frag[i])
+ dev_kfree_skb(tx.u.tx.extra_frag[i]);
+ kfree(tx.u.tx.extra_frag);
+ rcu_read_unlock();
+ return 0;
+}
+
+/* device xmit handlers */
+
+int ieee80211_master_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct ieee80211_tx_control control;
+ struct ieee80211_tx_packet_data *pkt_data;
+ struct net_device *odev = NULL;
+ struct ieee80211_sub_if_data *osdata;
+ int headroom;
+ int ret;
+
+ /*
+ * copy control out of the skb so other people can use skb->cb
+ */
+ pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
+ memset(&control, 0, sizeof(struct ieee80211_tx_control));
+
+ if (pkt_data->ifindex)
+ odev = dev_get_by_index(pkt_data->ifindex);
+ if (unlikely(odev && !is_ieee80211_device(odev, dev))) {
+ dev_put(odev);
+ odev = NULL;
+ }
+ if (unlikely(!odev)) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: Discarded packet with nonexistent "
+ "originating device\n", dev->name);
+#endif
+ dev_kfree_skb(skb);
+ return 0;
+ }
+ osdata = IEEE80211_DEV_TO_SUB_IF(odev);
+
+ headroom = osdata->local->tx_headroom + IEEE80211_ENCRYPT_HEADROOM;
+ if (skb_headroom(skb) < headroom) {
+ if (pskb_expand_head(skb, headroom, 0, GFP_ATOMIC)) {
+ dev_kfree_skb(skb);
+ dev_put(odev);
+ return 0;
+ }
+ }
+
+ control.ifindex = odev->ifindex;
+ control.type = osdata->type;
+ if (pkt_data->flags & IEEE80211_TXPD_REQ_TX_STATUS)
+ control.flags |= IEEE80211_TXCTL_REQ_TX_STATUS;
+ if (pkt_data->flags & IEEE80211_TXPD_DO_NOT_ENCRYPT)
+ control.flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+ if (pkt_data->flags & IEEE80211_TXPD_REQUEUE)
+ control.flags |= IEEE80211_TXCTL_REQUEUE;
+ control.queue = pkt_data->queue;
+
+ ret = ieee80211_tx(odev, skb, &control);
+ dev_put(odev);
+
+ return ret;
+}
+
+int ieee80211_monitor_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_tx_packet_data *pkt_data;
+ struct ieee80211_radiotap_header *prthdr =
+ (struct ieee80211_radiotap_header *)skb->data;
+ u16 len_rthdr;
+
+ /* check for not even having the fixed radiotap header part */
+ if (unlikely(skb->len < sizeof(struct ieee80211_radiotap_header)))
+ goto fail; /* too short to be possibly valid */
+
+ /* is it a header version we can trust to find length from? */
+ if (unlikely(prthdr->it_version))
+ goto fail; /* only version 0 is supported */
+
+ /* then there must be a radiotap header with a length we can use */
+ len_rthdr = ieee80211_get_radiotap_len(skb->data);
+
+ /* does the skb contain enough to deliver on the alleged length? */
+ if (unlikely(skb->len < len_rthdr))
+ goto fail; /* skb too short for claimed rt header extent */
+
+ skb->dev = local->mdev;
+
+ pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
+ memset(pkt_data, 0, sizeof(*pkt_data));
+ /* needed because we set skb device to master */
+ pkt_data->ifindex = dev->ifindex;
+
+ pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
+
+ /*
+ * fix up the pointers accounting for the radiotap
+ * header still being in there. We are being given
+ * a precooked IEEE80211 header so no need for
+ * normal processing
+ */
+ skb_set_mac_header(skb, len_rthdr);
+ /*
+ * these are just fixed to the end of the rt area since we
+ * don't have any better information and at this point, nobody cares
+ */
+ skb_set_network_header(skb, len_rthdr);
+ skb_set_transport_header(skb, len_rthdr);
+
+ /* pass the radiotap header up to the next stage intact */
+ dev_queue_xmit(skb);
+ return NETDEV_TX_OK;
+
+fail:
+ dev_kfree_skb(skb);
+ return NETDEV_TX_OK; /* meaning, we dealt with the skb */
+}
+
+/**
+ * ieee80211_subif_start_xmit - netif start_xmit function for Ethernet-type
+ * subinterfaces (wlan#, WDS, and VLAN interfaces)
+ * @skb: packet to be sent
+ * @dev: incoming interface
+ *
+ * Returns: 0 on success (and frees skb in this case) or 1 on failure (skb will
+ * not be freed, and caller is responsible for either retrying later or freeing
+ * skb).
+ *
+ * This function takes in an Ethernet header and encapsulates it with suitable
+ * IEEE 802.11 header based on which interface the packet is coming in. The
+ * encapsulated packet will then be passed to master interface, wlan#.11, for
+ * transmission (through low-level driver).
+ */
+int ieee80211_subif_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_tx_packet_data *pkt_data;
+ struct ieee80211_sub_if_data *sdata;
+ int ret = 1, head_need;
+ u16 ethertype, hdrlen, fc;
+ struct ieee80211_hdr hdr;
+ const u8 *encaps_data;
+ int encaps_len, skip_header_bytes;
+ int nh_pos, h_pos;
+ struct sta_info *sta;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (unlikely(skb->len < ETH_HLEN)) {
+ printk(KERN_DEBUG "%s: short skb (len=%d)\n",
+ dev->name, skb->len);
+ ret = 0;
+ goto fail;
+ }
+
+ nh_pos = skb_network_header(skb) - skb->data;
+ h_pos = skb_transport_header(skb) - skb->data;
+
+ /* convert Ethernet header to proper 802.11 header (based on
+ * operation mode) */
+ ethertype = (skb->data[12] << 8) | skb->data[13];
+ /* TODO: handling for 802.1x authorized/unauthorized port */
+ fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA;
+
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_AP:
+ case IEEE80211_IF_TYPE_VLAN:
+ fc |= IEEE80211_FCTL_FROMDS;
+ /* DA BSSID SA */
+ memcpy(hdr.addr1, skb->data, ETH_ALEN);
+ memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
+ memcpy(hdr.addr3, skb->data + ETH_ALEN, ETH_ALEN);
+ hdrlen = 24;
+ break;
+ case IEEE80211_IF_TYPE_WDS:
+ fc |= IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS;
+ /* RA TA DA SA */
+ memcpy(hdr.addr1, sdata->u.wds.remote_addr, ETH_ALEN);
+ memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
+ memcpy(hdr.addr3, skb->data, ETH_ALEN);
+ memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
+ hdrlen = 30;
+ break;
+ case IEEE80211_IF_TYPE_STA:
+ fc |= IEEE80211_FCTL_TODS;
+ /* BSSID SA DA */
+ memcpy(hdr.addr1, sdata->u.sta.bssid, ETH_ALEN);
+ memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
+ memcpy(hdr.addr3, skb->data, ETH_ALEN);
+ hdrlen = 24;
+ break;
+ case IEEE80211_IF_TYPE_IBSS:
+ /* DA SA BSSID */
+ memcpy(hdr.addr1, skb->data, ETH_ALEN);
+ memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
+ memcpy(hdr.addr3, sdata->u.sta.bssid, ETH_ALEN);
+ hdrlen = 24;
+ break;
+ default:
+ ret = 0;
+ goto fail;
+ }
+
+ /* receiver is QoS enabled, use a QoS type frame */
+ sta = sta_info_get(local, hdr.addr1);
+ if (sta) {
+ if (sta->flags & WLAN_STA_WME) {
+ fc |= IEEE80211_STYPE_QOS_DATA;
+ hdrlen += 2;
+ }
+ sta_info_put(sta);
+ }
+
+ hdr.frame_control = cpu_to_le16(fc);
+ hdr.duration_id = 0;
+ hdr.seq_ctrl = 0;
+
+ skip_header_bytes = ETH_HLEN;
+ if (ethertype == ETH_P_AARP || ethertype == ETH_P_IPX) {
+ encaps_data = bridge_tunnel_header;
+ encaps_len = sizeof(bridge_tunnel_header);
+ skip_header_bytes -= 2;
+ } else if (ethertype >= 0x600) {
+ encaps_data = rfc1042_header;
+ encaps_len = sizeof(rfc1042_header);
+ skip_header_bytes -= 2;
+ } else {
+ encaps_data = NULL;
+ encaps_len = 0;
+ }
+
+ skb_pull(skb, skip_header_bytes);
+ nh_pos -= skip_header_bytes;
+ h_pos -= skip_header_bytes;
+
+ /* TODO: implement support for fragments so that there is no need to
+ * reallocate and copy payload; it might be enough to support one
+ * extra fragment that would be copied in the beginning of the frame
+ * data.. anyway, it would be nice to include this into skb structure
+ * somehow
+ *
+ * There are few options for this:
+ * use skb->cb as an extra space for 802.11 header
+ * allocate new buffer if not enough headroom
+ * make sure that there is enough headroom in every skb by increasing
+ * build in headroom in __dev_alloc_skb() (linux/skbuff.h) and
+ * alloc_skb() (net/core/skbuff.c)
+ */
+ head_need = hdrlen + encaps_len + local->tx_headroom;
+ head_need -= skb_headroom(skb);
+
+ /* We are going to modify skb data, so make a copy of it if happens to
+ * be cloned. This could happen, e.g., with Linux bridge code passing
+ * us broadcast frames. */
+
+ if (head_need > 0 || skb_cloned(skb)) {
+#if 0
+ printk(KERN_DEBUG "%s: need to reallocate buffer for %d bytes "
+ "of headroom\n", dev->name, head_need);
+#endif
+
+ if (skb_cloned(skb))
+ I802_DEBUG_INC(local->tx_expand_skb_head_cloned);
+ else
+ I802_DEBUG_INC(local->tx_expand_skb_head);
+ /* Since we have to reallocate the buffer, make sure that there
+ * is enough room for possible WEP IV/ICV and TKIP (8 bytes
+ * before payload and 12 after). */
+ if (pskb_expand_head(skb, (head_need > 0 ? head_need + 8 : 8),
+ 12, GFP_ATOMIC)) {
+ printk(KERN_DEBUG "%s: failed to reallocate TX buffer"
+ "\n", dev->name);
+ goto fail;
+ }
+ }
+
+ if (encaps_data) {
+ memcpy(skb_push(skb, encaps_len), encaps_data, encaps_len);
+ nh_pos += encaps_len;
+ h_pos += encaps_len;
+ }
+
+ if (fc & IEEE80211_STYPE_QOS_DATA) {
+ __le16 *qos_control;
+
+ qos_control = (__le16*) skb_push(skb, 2);
+ memcpy(skb_push(skb, hdrlen - 2), &hdr, hdrlen - 2);
+ /*
+ * Maybe we could actually set some fields here, for now just
+ * initialise to zero to indicate no special operation.
+ */
+ *qos_control = 0;
+ } else
+ memcpy(skb_push(skb, hdrlen), &hdr, hdrlen);
+
+ nh_pos += hdrlen;
+ h_pos += hdrlen;
+
+ pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
+ memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
+ pkt_data->ifindex = dev->ifindex;
+
+ skb->dev = local->mdev;
+ dev->stats.tx_packets++;
+ dev->stats.tx_bytes += skb->len;
+
+ /* Update skb pointers to various headers since this modified frame
+ * is going to go through Linux networking code that may potentially
+ * need things like pointer to IP header. */
+ skb_set_mac_header(skb, 0);
+ skb_set_network_header(skb, nh_pos);
+ skb_set_transport_header(skb, h_pos);
+
+ dev->trans_start = jiffies;
+ dev_queue_xmit(skb);
+
+ return 0;
+
+ fail:
+ if (!ret)
+ dev_kfree_skb(skb);
+
+ return ret;
+}
+
+/*
+ * This is the transmit routine for the 802.11 type interfaces
+ * called by upper layers of the linux networking
+ * stack when it has a frame to transmit
+ */
+int ieee80211_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_tx_packet_data *pkt_data;
+ struct ieee80211_hdr *hdr;
+ u16 fc;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ if (skb->len < 10) {
+ dev_kfree_skb(skb);
+ return 0;
+ }
+
+ if (skb_headroom(skb) < sdata->local->tx_headroom) {
+ if (pskb_expand_head(skb, sdata->local->tx_headroom,
+ 0, GFP_ATOMIC)) {
+ dev_kfree_skb(skb);
+ return 0;
+ }
+ }
+
+ hdr = (struct ieee80211_hdr *) skb->data;
+ fc = le16_to_cpu(hdr->frame_control);
+
+ pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
+ memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
+ pkt_data->ifindex = sdata->dev->ifindex;
+
+ skb->priority = 20; /* use hardcoded priority for mgmt TX queue */
+ skb->dev = sdata->local->mdev;
+
+ /*
+ * We're using the protocol field of the the frame control header
+ * to request TX callback for hostapd. BIT(1) is checked.
+ */
+ if ((fc & BIT(1)) == BIT(1)) {
+ pkt_data->flags |= IEEE80211_TXPD_REQ_TX_STATUS;
+ fc &= ~BIT(1);
+ hdr->frame_control = cpu_to_le16(fc);
+ }
+
+ if (!(fc & IEEE80211_FCTL_PROTECTED))
+ pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
+
+ dev->stats.tx_packets++;
+ dev->stats.tx_bytes += skb->len;
+
+ dev_queue_xmit(skb);
+
+ return 0;
+}
+
+/* helper functions for pending packets for when queues are stopped */
+
+void ieee80211_clear_tx_pending(struct ieee80211_local *local)
+{
+ int i, j;
+ struct ieee80211_tx_stored_packet *store;
+
+ for (i = 0; i < local->hw.queues; i++) {
+ if (!__ieee80211_queue_pending(local, i))
+ continue;
+ store = &local->pending_packet[i];
+ kfree_skb(store->skb);
+ for (j = 0; j < store->num_extra_frag; j++)
+ kfree_skb(store->extra_frag[j]);
+ kfree(store->extra_frag);
+ clear_bit(IEEE80211_LINK_STATE_PENDING, &local->state[i]);
+ }
+}
+
+void ieee80211_tx_pending(unsigned long data)
+{
+ struct ieee80211_local *local = (struct ieee80211_local *)data;
+ struct net_device *dev = local->mdev;
+ struct ieee80211_tx_stored_packet *store;
+ struct ieee80211_txrx_data tx;
+ int i, ret, reschedule = 0;
+
+ netif_tx_lock_bh(dev);
+ for (i = 0; i < local->hw.queues; i++) {
+ if (__ieee80211_queue_stopped(local, i))
+ continue;
+ if (!__ieee80211_queue_pending(local, i)) {
+ reschedule = 1;
+ continue;
+ }
+ store = &local->pending_packet[i];
+ tx.u.tx.control = &store->control;
+ tx.u.tx.extra_frag = store->extra_frag;
+ tx.u.tx.num_extra_frag = store->num_extra_frag;
+ tx.u.tx.last_frag_hwrate = store->last_frag_hwrate;
+ tx.u.tx.last_frag_rate = store->last_frag_rate;
+ tx.flags = 0;
+ if (store->last_frag_rate_ctrl_probe)
+ tx.flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
+ ret = __ieee80211_tx(local, store->skb, &tx);
+ if (ret) {
+ if (ret == IEEE80211_TX_FRAG_AGAIN)
+ store->skb = NULL;
+ } else {
+ clear_bit(IEEE80211_LINK_STATE_PENDING,
+ &local->state[i]);
+ reschedule = 1;
+ }
+ }
+ netif_tx_unlock_bh(dev);
+ if (reschedule) {
+ if (!ieee80211_qdisc_installed(dev)) {
+ if (!__ieee80211_queue_stopped(local, 0))
+ netif_wake_queue(dev);
+ } else
+ netif_schedule(dev);
+ }
+}
+
+/* functions for drivers to get certain frames */
+
+static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
+ struct ieee80211_if_ap *bss,
+ struct sk_buff *skb)
+{
+ u8 *pos, *tim;
+ int aid0 = 0;
+ int i, have_bits = 0, n1, n2;
+
+ /* Generate bitmap for TIM only if there are any STAs in power save
+ * mode. */
+ read_lock_bh(&local->sta_lock);
+ if (atomic_read(&bss->num_sta_ps) > 0)
+ /* in the hope that this is faster than
+ * checking byte-for-byte */
+ have_bits = !bitmap_empty((unsigned long*)bss->tim,
+ IEEE80211_MAX_AID+1);
+
+ if (bss->dtim_count == 0)
+ bss->dtim_count = bss->dtim_period - 1;
+ else
+ bss->dtim_count--;
+
+ tim = pos = (u8 *) skb_put(skb, 6);
+ *pos++ = WLAN_EID_TIM;
+ *pos++ = 4;
+ *pos++ = bss->dtim_count;
+ *pos++ = bss->dtim_period;
+
+ if (bss->dtim_count == 0 && !skb_queue_empty(&bss->ps_bc_buf))
+ aid0 = 1;
+
+ if (have_bits) {
+ /* Find largest even number N1 so that bits numbered 1 through
+ * (N1 x 8) - 1 in the bitmap are 0 and number N2 so that bits
+ * (N2 + 1) x 8 through 2007 are 0. */
+ n1 = 0;
+ for (i = 0; i < IEEE80211_MAX_TIM_LEN; i++) {
+ if (bss->tim[i]) {
+ n1 = i & 0xfe;
+ break;
+ }
+ }
+ n2 = n1;
+ for (i = IEEE80211_MAX_TIM_LEN - 1; i >= n1; i--) {
+ if (bss->tim[i]) {
+ n2 = i;
+ break;
+ }
+ }
+
+ /* Bitmap control */
+ *pos++ = n1 | aid0;
+ /* Part Virt Bitmap */
+ memcpy(pos, bss->tim + n1, n2 - n1 + 1);
+
+ tim[1] = n2 - n1 + 4;
+ skb_put(skb, n2 - n1);
+ } else {
+ *pos++ = aid0; /* Bitmap control */
+ *pos++ = 0; /* Part Virt Bitmap */
+ }
+ read_unlock_bh(&local->sta_lock);
+}
+
+struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, int if_id,
+ struct ieee80211_tx_control *control)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct sk_buff *skb;
+ struct net_device *bdev;
+ struct ieee80211_sub_if_data *sdata = NULL;
+ struct ieee80211_if_ap *ap = NULL;
+ struct ieee80211_rate *rate;
+ struct rate_control_extra extra;
+ u8 *b_head, *b_tail;
+ int bh_len, bt_len;
+
+ bdev = dev_get_by_index(if_id);
+ if (bdev) {
+ sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
+ ap = &sdata->u.ap;
+ dev_put(bdev);
+ }
+
+ if (!ap || sdata->type != IEEE80211_IF_TYPE_AP ||
+ !ap->beacon_head) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ if (net_ratelimit())
+ printk(KERN_DEBUG "no beacon data avail for idx=%d "
+ "(%s)\n", if_id, bdev ? bdev->name : "N/A");
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+ return NULL;
+ }
+
+ /* Assume we are generating the normal beacon locally */
+ b_head = ap->beacon_head;
+ b_tail = ap->beacon_tail;
+ bh_len = ap->beacon_head_len;
+ bt_len = ap->beacon_tail_len;
+
+ skb = dev_alloc_skb(local->tx_headroom +
+ bh_len + bt_len + 256 /* maximum TIM len */);
+ if (!skb)
+ return NULL;
+
+ skb_reserve(skb, local->tx_headroom);
+ memcpy(skb_put(skb, bh_len), b_head, bh_len);
+
+ ieee80211_include_sequence(sdata, (struct ieee80211_hdr *)skb->data);
+
+ ieee80211_beacon_add_tim(local, ap, skb);
+
+ if (b_tail) {
+ memcpy(skb_put(skb, bt_len), b_tail, bt_len);
+ }
+
+ if (control) {
+ memset(&extra, 0, sizeof(extra));
+ extra.mode = local->oper_hw_mode;
+
+ rate = rate_control_get_rate(local, local->mdev, skb, &extra);
+ if (!rate) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: ieee80211_beacon_get: no rate "
+ "found\n", wiphy_name(local->hw.wiphy));
+ }
+ dev_kfree_skb(skb);
+ return NULL;
+ }
+
+ control->tx_rate =
+ ((sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
+ (rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
+ rate->val2 : rate->val;
+ control->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
+ control->power_level = local->hw.conf.power_level;
+ control->flags |= IEEE80211_TXCTL_NO_ACK;
+ control->retry_limit = 1;
+ control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
+ }
+
+ ap->num_beacons++;
+ return skb;
+}
+EXPORT_SYMBOL(ieee80211_beacon_get);
+
+void ieee80211_rts_get(struct ieee80211_hw *hw, int if_id,
+ const void *frame, size_t frame_len,
+ const struct ieee80211_tx_control *frame_txctl,
+ struct ieee80211_rts *rts)
+{
+ const struct ieee80211_hdr *hdr = frame;
+ u16 fctl;
+
+ fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS;
+ rts->frame_control = cpu_to_le16(fctl);
+ rts->duration = ieee80211_rts_duration(hw, if_id, frame_len, frame_txctl);
+ memcpy(rts->ra, hdr->addr1, sizeof(rts->ra));
+ memcpy(rts->ta, hdr->addr2, sizeof(rts->ta));
+}
+EXPORT_SYMBOL(ieee80211_rts_get);
+
+void ieee80211_ctstoself_get(struct ieee80211_hw *hw, int if_id,
+ const void *frame, size_t frame_len,
+ const struct ieee80211_tx_control *frame_txctl,
+ struct ieee80211_cts *cts)
+{
+ const struct ieee80211_hdr *hdr = frame;
+ u16 fctl;
+
+ fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS;
+ cts->frame_control = cpu_to_le16(fctl);
+ cts->duration = ieee80211_ctstoself_duration(hw, if_id, frame_len, frame_txctl);
+ memcpy(cts->ra, hdr->addr1, sizeof(cts->ra));
+}
+EXPORT_SYMBOL(ieee80211_ctstoself_get);
+
+struct sk_buff *
+ieee80211_get_buffered_bc(struct ieee80211_hw *hw, int if_id,
+ struct ieee80211_tx_control *control)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct sk_buff *skb;
+ struct sta_info *sta;
+ ieee80211_tx_handler *handler;
+ struct ieee80211_txrx_data tx;
+ ieee80211_txrx_result res = TXRX_DROP;
+ struct net_device *bdev;
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_if_ap *bss = NULL;
+
+ bdev = dev_get_by_index(if_id);
+ if (bdev) {
+ sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
+ bss = &sdata->u.ap;
+ dev_put(bdev);
+ }
+ if (!bss || sdata->type != IEEE80211_IF_TYPE_AP || !bss->beacon_head)
+ return NULL;
+
+ if (bss->dtim_count != 0)
+ return NULL; /* send buffered bc/mc only after DTIM beacon */
+ memset(control, 0, sizeof(*control));
+ while (1) {
+ skb = skb_dequeue(&bss->ps_bc_buf);
+ if (!skb)
+ return NULL;
+ local->total_ps_buffered--;
+
+ if (!skb_queue_empty(&bss->ps_bc_buf) && skb->len >= 2) {
+ struct ieee80211_hdr *hdr =
+ (struct ieee80211_hdr *) skb->data;
+ /* more buffered multicast/broadcast frames ==> set
+ * MoreData flag in IEEE 802.11 header to inform PS
+ * STAs */
+ hdr->frame_control |=
+ cpu_to_le16(IEEE80211_FCTL_MOREDATA);
+ }
+
+ if (!ieee80211_tx_prepare(&tx, skb, local->mdev, control))
+ break;
+ dev_kfree_skb_any(skb);
+ }
+ sta = tx.sta;
+ tx.flags |= IEEE80211_TXRXD_TXPS_BUFFERED;
+ tx.u.tx.mode = local->hw.conf.mode;
+
+ for (handler = local->tx_handlers; *handler != NULL; handler++) {
+ res = (*handler)(&tx);
+ if (res == TXRX_DROP || res == TXRX_QUEUED)
+ break;
+ }
+ dev_put(tx.dev);
+ skb = tx.skb; /* handlers are allowed to change skb */
+
+ if (res == TXRX_DROP) {
+ I802_DEBUG_INC(local->tx_handlers_drop);
+ dev_kfree_skb(skb);
+ skb = NULL;
+ } else if (res == TXRX_QUEUED) {
+ I802_DEBUG_INC(local->tx_handlers_queued);
+ skb = NULL;
+ }
+
+ if (sta)
+ sta_info_put(sta);
+
+ return skb;
+}
+EXPORT_SYMBOL(ieee80211_get_buffered_bc);
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * utilities for mac80211
+ */
+
+#include <net/mac80211.h>
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/skbuff.h>
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+#include <linux/wireless.h>
+#include <linux/bitmap.h>
+#include <net/cfg80211.h>
+
+#include "ieee80211_i.h"
+#include "ieee80211_rate.h"
+#include "wme.h"
+
+/* privid for wiphys to determine whether they belong to us or not */
+void *mac80211_wiphy_privid = &mac80211_wiphy_privid;
+
+/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
+/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
+const unsigned char rfc1042_header[] =
+ { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
+
+/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
+const unsigned char bridge_tunnel_header[] =
+ { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
+
+/* No encapsulation header if EtherType < 0x600 (=length) */
+static const unsigned char eapol_header[] =
+ { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00, 0x88, 0x8e };
+
+
+static int rate_list_match(const int *rate_list, int rate)
+{
+ int i;
+
+ if (!rate_list)
+ return 0;
+
+ for (i = 0; rate_list[i] >= 0; i++)
+ if (rate_list[i] == rate)
+ return 1;
+
+ return 0;
+}
+
+void ieee80211_prepare_rates(struct ieee80211_local *local,
+ struct ieee80211_hw_mode *mode)
+{
+ int i;
+
+ for (i = 0; i < mode->num_rates; i++) {
+ struct ieee80211_rate *rate = &mode->rates[i];
+
+ rate->flags &= ~(IEEE80211_RATE_SUPPORTED |
+ IEEE80211_RATE_BASIC);
+
+ if (local->supp_rates[mode->mode]) {
+ if (!rate_list_match(local->supp_rates[mode->mode],
+ rate->rate))
+ continue;
+ }
+
+ rate->flags |= IEEE80211_RATE_SUPPORTED;
+
+ /* Use configured basic rate set if it is available. If not,
+ * use defaults that are sane for most cases. */
+ if (local->basic_rates[mode->mode]) {
+ if (rate_list_match(local->basic_rates[mode->mode],
+ rate->rate))
+ rate->flags |= IEEE80211_RATE_BASIC;
+ } else switch (mode->mode) {
+ case MODE_IEEE80211A:
+ if (rate->rate == 60 || rate->rate == 120 ||
+ rate->rate == 240)
+ rate->flags |= IEEE80211_RATE_BASIC;
+ break;
+ case MODE_IEEE80211B:
+ if (rate->rate == 10 || rate->rate == 20)
+ rate->flags |= IEEE80211_RATE_BASIC;
+ break;
+ case MODE_IEEE80211G:
+ if (rate->rate == 10 || rate->rate == 20 ||
+ rate->rate == 55 || rate->rate == 110)
+ rate->flags |= IEEE80211_RATE_BASIC;
+ break;
+ case NUM_IEEE80211_MODES:
+ /* not useful */
+ break;
+ }
+
+ /* Set ERP and MANDATORY flags based on phymode */
+ switch (mode->mode) {
+ case MODE_IEEE80211A:
+ if (rate->rate == 60 || rate->rate == 120 ||
+ rate->rate == 240)
+ rate->flags |= IEEE80211_RATE_MANDATORY;
+ break;
+ case MODE_IEEE80211B:
+ if (rate->rate == 10)
+ rate->flags |= IEEE80211_RATE_MANDATORY;
+ break;
+ case MODE_IEEE80211G:
+ if (rate->rate == 10 || rate->rate == 20 ||
+ rate->rate == 55 || rate->rate == 110 ||
+ rate->rate == 60 || rate->rate == 120 ||
+ rate->rate == 240)
+ rate->flags |= IEEE80211_RATE_MANDATORY;
+ break;
+ case NUM_IEEE80211_MODES:
+ /* not useful */
+ break;
+ }
+ if (ieee80211_is_erp_rate(mode->mode, rate->rate))
+ rate->flags |= IEEE80211_RATE_ERP;
+ }
+}
+
+u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len)
+{
+ u16 fc;
+
+ if (len < 24)
+ return NULL;
+
+ fc = le16_to_cpu(hdr->frame_control);
+
+ switch (fc & IEEE80211_FCTL_FTYPE) {
+ case IEEE80211_FTYPE_DATA:
+ switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
+ case IEEE80211_FCTL_TODS:
+ return hdr->addr1;
+ case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
+ return NULL;
+ case IEEE80211_FCTL_FROMDS:
+ return hdr->addr2;
+ case 0:
+ return hdr->addr3;
+ }
+ break;
+ case IEEE80211_FTYPE_MGMT:
+ return hdr->addr3;
+ case IEEE80211_FTYPE_CTL:
+ if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)
+ return hdr->addr1;
+ else
+ return NULL;
+ }
+
+ return NULL;
+}
+
+int ieee80211_get_hdrlen(u16 fc)
+{
+ int hdrlen = 24;
+
+ switch (fc & IEEE80211_FCTL_FTYPE) {
+ case IEEE80211_FTYPE_DATA:
+ if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
+ hdrlen = 30; /* Addr4 */
+ /*
+ * The QoS Control field is two bytes and its presence is
+ * indicated by the IEEE80211_STYPE_QOS_DATA bit. Add 2 to
+ * hdrlen if that bit is set.
+ * This works by masking out the bit and shifting it to
+ * bit position 1 so the result has the value 0 or 2.
+ */
+ hdrlen += (fc & IEEE80211_STYPE_QOS_DATA)
+ >> (ilog2(IEEE80211_STYPE_QOS_DATA)-1);
+ break;
+ case IEEE80211_FTYPE_CTL:
+ /*
+ * ACK and CTS are 10 bytes, all others 16. To see how
+ * to get this condition consider
+ * subtype mask: 0b0000000011110000 (0x00F0)
+ * ACK subtype: 0b0000000011010000 (0x00D0)
+ * CTS subtype: 0b0000000011000000 (0x00C0)
+ * bits that matter: ^^^ (0x00E0)
+ * value of those: 0b0000000011000000 (0x00C0)
+ */
+ if ((fc & 0xE0) == 0xC0)
+ hdrlen = 10;
+ else
+ hdrlen = 16;
+ break;
+ }
+
+ return hdrlen;
+}
+EXPORT_SYMBOL(ieee80211_get_hdrlen);
+
+int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
+{
+ const struct ieee80211_hdr *hdr = (const struct ieee80211_hdr *) skb->data;
+ int hdrlen;
+
+ if (unlikely(skb->len < 10))
+ return 0;
+ hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control));
+ if (unlikely(hdrlen > skb->len))
+ return 0;
+ return hdrlen;
+}
+EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
+
+int ieee80211_is_eapol(const struct sk_buff *skb)
+{
+ const struct ieee80211_hdr *hdr;
+ u16 fc;
+ int hdrlen;
+
+ if (unlikely(skb->len < 10))
+ return 0;
+
+ hdr = (const struct ieee80211_hdr *) skb->data;
+ fc = le16_to_cpu(hdr->frame_control);
+
+ if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
+ return 0;
+
+ hdrlen = ieee80211_get_hdrlen(fc);
+
+ if (unlikely(skb->len >= hdrlen + sizeof(eapol_header) &&
+ memcmp(skb->data + hdrlen, eapol_header,
+ sizeof(eapol_header)) == 0))
+ return 1;
+
+ return 0;
+}
+
+void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
+
+ hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
+ if (tx->u.tx.extra_frag) {
+ struct ieee80211_hdr *fhdr;
+ int i;
+ for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
+ fhdr = (struct ieee80211_hdr *)
+ tx->u.tx.extra_frag[i]->data;
+ fhdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
+ }
+ }
+}
+
+int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
+ int rate, int erp, int short_preamble)
+{
+ int dur;
+
+ /* calculate duration (in microseconds, rounded up to next higher
+ * integer if it includes a fractional microsecond) to send frame of
+ * len bytes (does not include FCS) at the given rate. Duration will
+ * also include SIFS.
+ *
+ * rate is in 100 kbps, so divident is multiplied by 10 in the
+ * DIV_ROUND_UP() operations.
+ */
+
+ if (local->hw.conf.phymode == MODE_IEEE80211A || erp) {
+ /*
+ * OFDM:
+ *
+ * N_DBPS = DATARATE x 4
+ * N_SYM = Ceiling((16+8xLENGTH+6) / N_DBPS)
+ * (16 = SIGNAL time, 6 = tail bits)
+ * TXTIME = T_PREAMBLE + T_SIGNAL + T_SYM x N_SYM + Signal Ext
+ *
+ * T_SYM = 4 usec
+ * 802.11a - 17.5.2: aSIFSTime = 16 usec
+ * 802.11g - 19.8.4: aSIFSTime = 10 usec +
+ * signal ext = 6 usec
+ */
+ dur = 16; /* SIFS + signal ext */
+ dur += 16; /* 17.3.2.3: T_PREAMBLE = 16 usec */
+ dur += 4; /* 17.3.2.3: T_SIGNAL = 4 usec */
+ dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10,
+ 4 * rate); /* T_SYM x N_SYM */
+ } else {
+ /*
+ * 802.11b or 802.11g with 802.11b compatibility:
+ * 18.3.4: TXTIME = PreambleLength + PLCPHeaderTime +
+ * Ceiling(((LENGTH+PBCC)x8)/DATARATE). PBCC=0.
+ *
+ * 802.11 (DS): 15.3.3, 802.11b: 18.3.4
+ * aSIFSTime = 10 usec
+ * aPreambleLength = 144 usec or 72 usec with short preamble
+ * aPLCPHeaderLength = 48 usec or 24 usec with short preamble
+ */
+ dur = 10; /* aSIFSTime = 10 usec */
+ dur += short_preamble ? (72 + 24) : (144 + 48);
+
+ dur += DIV_ROUND_UP(8 * (len + 4) * 10, rate);
+ }
+
+ return dur;
+}
+
+/* Exported duration function for driver use */
+__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, int if_id,
+ size_t frame_len, int rate)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct net_device *bdev = dev_get_by_index(if_id);
+ struct ieee80211_sub_if_data *sdata;
+ u16 dur;
+ int erp;
+
+ if (unlikely(!bdev))
+ return 0;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
+ erp = ieee80211_is_erp_rate(hw->conf.phymode, rate);
+ dur = ieee80211_frame_duration(local, frame_len, rate,
+ erp, sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE);
+
+ dev_put(bdev);
+ return cpu_to_le16(dur);
+}
+EXPORT_SYMBOL(ieee80211_generic_frame_duration);
+
+__le16 ieee80211_rts_duration(struct ieee80211_hw *hw, int if_id,
+ size_t frame_len,
+ const struct ieee80211_tx_control *frame_txctl)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_rate *rate;
+ struct net_device *bdev = dev_get_by_index(if_id);
+ struct ieee80211_sub_if_data *sdata;
+ int short_preamble;
+ int erp;
+ u16 dur;
+
+ if (unlikely(!bdev))
+ return 0;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
+ short_preamble = sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE;
+
+ rate = frame_txctl->rts_rate;
+ erp = !!(rate->flags & IEEE80211_RATE_ERP);
+
+ /* CTS duration */
+ dur = ieee80211_frame_duration(local, 10, rate->rate,
+ erp, short_preamble);
+ /* Data frame duration */
+ dur += ieee80211_frame_duration(local, frame_len, rate->rate,
+ erp, short_preamble);
+ /* ACK duration */
+ dur += ieee80211_frame_duration(local, 10, rate->rate,
+ erp, short_preamble);
+
+ dev_put(bdev);
+ return cpu_to_le16(dur);
+}
+EXPORT_SYMBOL(ieee80211_rts_duration);
+
+__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, int if_id,
+ size_t frame_len,
+ const struct ieee80211_tx_control *frame_txctl)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_rate *rate;
+ struct net_device *bdev = dev_get_by_index(if_id);
+ struct ieee80211_sub_if_data *sdata;
+ int short_preamble;
+ int erp;
+ u16 dur;
+
+ if (unlikely(!bdev))
+ return 0;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
+ short_preamble = sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE;
+
+ rate = frame_txctl->rts_rate;
+ erp = !!(rate->flags & IEEE80211_RATE_ERP);
+
+ /* Data frame duration */
+ dur = ieee80211_frame_duration(local, frame_len, rate->rate,
+ erp, short_preamble);
+ if (!(frame_txctl->flags & IEEE80211_TXCTL_NO_ACK)) {
+ /* ACK duration */
+ dur += ieee80211_frame_duration(local, 10, rate->rate,
+ erp, short_preamble);
+ }
+
+ dev_put(bdev);
+ return cpu_to_le16(dur);
+}
+EXPORT_SYMBOL(ieee80211_ctstoself_duration);
+
+struct ieee80211_rate *
+ieee80211_get_rate(struct ieee80211_local *local, int phymode, int hw_rate)
+{
+ struct ieee80211_hw_mode *mode;
+ int r;
+
+ list_for_each_entry(mode, &local->modes_list, list) {
+ if (mode->mode != phymode)
+ continue;
+ for (r = 0; r < mode->num_rates; r++) {
+ struct ieee80211_rate *rate = &mode->rates[r];
+ if (rate->val == hw_rate ||
+ (rate->flags & IEEE80211_RATE_PREAMBLE2 &&
+ rate->val2 == hw_rate))
+ return rate;
+ }
+ }
+
+ return NULL;
+}
+
+void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ if (test_and_clear_bit(IEEE80211_LINK_STATE_XOFF,
+ &local->state[queue])) {
+ if (test_bit(IEEE80211_LINK_STATE_PENDING,
+ &local->state[queue]))
+ tasklet_schedule(&local->tx_pending_tasklet);
+ else
+ if (!ieee80211_qdisc_installed(local->mdev)) {
+ if (queue == 0)
+ netif_wake_queue(local->mdev);
+ } else
+ __netif_schedule(local->mdev);
+ }
+}
+EXPORT_SYMBOL(ieee80211_wake_queue);
+
+void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ if (!ieee80211_qdisc_installed(local->mdev) && queue == 0)
+ netif_stop_queue(local->mdev);
+ set_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]);
+}
+EXPORT_SYMBOL(ieee80211_stop_queue);
+
+void ieee80211_start_queues(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ int i;
+
+ for (i = 0; i < local->hw.queues; i++)
+ clear_bit(IEEE80211_LINK_STATE_XOFF, &local->state[i]);
+ if (!ieee80211_qdisc_installed(local->mdev))
+ netif_start_queue(local->mdev);
+}
+EXPORT_SYMBOL(ieee80211_start_queues);
+
+void ieee80211_stop_queues(struct ieee80211_hw *hw)
+{
+ int i;
+
+ for (i = 0; i < hw->queues; i++)
+ ieee80211_stop_queue(hw, i);
+}
+EXPORT_SYMBOL(ieee80211_stop_queues);
+
+void ieee80211_wake_queues(struct ieee80211_hw *hw)
+{
+ int i;
+
+ for (i = 0; i < hw->queues; i++)
+ ieee80211_wake_queue(hw, i);
+}
+EXPORT_SYMBOL(ieee80211_wake_queues);
}
-void ieee80211_wep_get_iv(struct ieee80211_local *local,
- struct ieee80211_key *key, u8 *iv)
+static void ieee80211_wep_get_iv(struct ieee80211_local *local,
+ struct ieee80211_key *key, u8 *iv)
{
local->wep_iv++;
- if (ieee80211_wep_weak_iv(local->wep_iv, key->keylen))
+ if (ieee80211_wep_weak_iv(local->wep_iv, key->conf.keylen))
local->wep_iv += 0x0100;
if (!iv)
*iv++ = (local->wep_iv >> 16) & 0xff;
*iv++ = (local->wep_iv >> 8) & 0xff;
*iv++ = local->wep_iv & 0xff;
- *iv++ = key->keyidx << 6;
+ *iv++ = key->conf.keyidx << 6;
}
-u8 * ieee80211_wep_add_iv(struct ieee80211_local *local,
- struct sk_buff *skb,
- struct ieee80211_key *key)
+static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local,
+ struct sk_buff *skb,
+ struct ieee80211_key *key)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u16 fc;
}
-void ieee80211_wep_remove_iv(struct ieee80211_local *local,
- struct sk_buff *skb,
- struct ieee80211_key *key)
+static void ieee80211_wep_remove_iv(struct ieee80211_local *local,
+ struct sk_buff *skb,
+ struct ieee80211_key *key)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u16 fc;
u8 *rc4key, *iv;
size_t len;
- if (!key || key->alg != ALG_WEP)
+ if (!key || key->conf.alg != ALG_WEP)
return -1;
- klen = 3 + key->keylen;
+ klen = 3 + key->conf.keylen;
rc4key = kmalloc(klen, GFP_ATOMIC);
if (!rc4key)
return -1;
memcpy(rc4key, iv, 3);
/* Copy rest of the WEP key (the secret part) */
- memcpy(rc4key + 3, key->key, key->keylen);
+ memcpy(rc4key + 3, key->conf.key, key->conf.keylen);
/* Add room for ICV */
skb_put(skb, WEP_ICV_LEN);
keyidx = skb->data[hdrlen + 3] >> 6;
- if (!key || keyidx != key->keyidx || key->alg != ALG_WEP)
+ if (!key || keyidx != key->conf.keyidx || key->conf.alg != ALG_WEP)
return -1;
- klen = 3 + key->keylen;
+ klen = 3 + key->conf.keylen;
rc4key = kmalloc(klen, GFP_ATOMIC);
if (!rc4key)
memcpy(rc4key, skb->data + hdrlen, 3);
/* Copy rest of the WEP key (the secret part) */
- memcpy(rc4key + 3, key->key, key->keylen);
+ memcpy(rc4key + 3, key->conf.key, key->conf.keylen);
if (ieee80211_wep_decrypt_data(local->wep_rx_tfm, rc4key, klen,
skb->data + hdrlen + WEP_IV_LEN,
}
-int ieee80211_wep_get_keyidx(struct sk_buff *skb)
+u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u16 fc;
int hdrlen;
+ u8 *ivpos;
+ u32 iv;
fc = le16_to_cpu(hdr->frame_control);
if (!(fc & IEEE80211_FCTL_PROTECTED))
- return -1;
+ return NULL;
hdrlen = ieee80211_get_hdrlen(fc);
+ ivpos = skb->data + hdrlen;
+ iv = (ivpos[0] << 16) | (ivpos[1] << 8) | ivpos[2];
- if (skb->len < 8 + hdrlen)
- return -1;
+ if (ieee80211_wep_weak_iv(iv, key->conf.keylen))
+ return ivpos;
- return skb->data[hdrlen + 3] >> 6;
+ return NULL;
}
+ieee80211_txrx_result
+ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx)
+{
+ if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
+ ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
+ (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH))
+ return TXRX_CONTINUE;
+
+ if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) {
+ if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key)) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: RX WEP frame, decrypt "
+ "failed\n", rx->dev->name);
+ return TXRX_DROP;
+ }
+ } else if (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED)) {
+ ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key);
+ /* remove ICV */
+ skb_trim(rx->skb, rx->skb->len - 4);
+ }
-u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key)
+ return TXRX_CONTINUE;
+}
+
+static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb)
{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ if (!(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) {
+ if (ieee80211_wep_encrypt(tx->local, skb, tx->key))
+ return -1;
+ } else {
+ tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
+ if (tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) {
+ if (!ieee80211_wep_add_iv(tx->local, skb, tx->key))
+ return -1;
+ }
+ }
+ return 0;
+}
+
+ieee80211_txrx_result
+ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
u16 fc;
- int hdrlen;
- u8 *ivpos;
- u32 iv;
fc = le16_to_cpu(hdr->frame_control);
- if (!(fc & IEEE80211_FCTL_PROTECTED))
- return NULL;
- hdrlen = ieee80211_get_hdrlen(fc);
- ivpos = skb->data + hdrlen;
- iv = (ivpos[0] << 16) | (ivpos[1] << 8) | ivpos[2];
+ if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
+ ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
+ (fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)))
+ return TXRX_CONTINUE;
- if (ieee80211_wep_weak_iv(iv, key->keylen))
- return ivpos;
+ tx->u.tx.control->iv_len = WEP_IV_LEN;
+ tx->u.tx.control->icv_len = WEP_ICV_LEN;
+ ieee80211_tx_set_iswep(tx);
- return NULL;
+ if (wep_encrypt_skb(tx, tx->skb) < 0) {
+ I802_DEBUG_INC(tx->local->tx_handlers_drop_wep);
+ return TXRX_DROP;
+ }
+
+ if (tx->u.tx.extra_frag) {
+ int i;
+ for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
+ if (wep_encrypt_skb(tx, tx->u.tx.extra_frag[i]) < 0) {
+ I802_DEBUG_INC(tx->local->
+ tx_handlers_drop_wep);
+ return TXRX_DROP;
+ }
+ }
+ }
+
+ return TXRX_CONTINUE;
}
int ieee80211_wep_init(struct ieee80211_local *local);
void ieee80211_wep_free(struct ieee80211_local *local);
-void ieee80211_wep_get_iv(struct ieee80211_local *local,
- struct ieee80211_key *key, u8 *iv);
-u8 * ieee80211_wep_add_iv(struct ieee80211_local *local,
- struct sk_buff *skb,
- struct ieee80211_key *key);
-void ieee80211_wep_remove_iv(struct ieee80211_local *local,
- struct sk_buff *skb,
- struct ieee80211_key *key);
void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
size_t klen, u8 *data, size_t data_len);
int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
struct ieee80211_key *key);
int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb,
struct ieee80211_key *key);
-int ieee80211_wep_get_keyidx(struct sk_buff *skb);
u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key);
+ieee80211_txrx_result
+ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx);
+ieee80211_txrx_result
+ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx);
+
#endif /* WEP_H */
#include "ieee80211_i.h"
#include "wme.h"
-static inline int WLAN_FC_IS_QOS_DATA(u16 fc)
-{
- return (fc & 0x8C) == 0x88;
-}
-
-
-ieee80211_txrx_result
-ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx)
-{
- u8 *data = rx->skb->data;
- int tid;
- unsigned int is_agg_frame = 0;
-
- /* does the frame have a qos control field? */
- if (WLAN_FC_IS_QOS_DATA(rx->fc)) {
- u8 *qc = data + ieee80211_get_hdrlen(rx->fc) - QOS_CONTROL_LEN;
-
- /* frame has qos control */
- rx->u.rx.qos_control = le16_to_cpu(*((__le16*)qc));
- tid = rx->u.rx.qos_control & QOS_CONTROL_TID_MASK;
- if (rx->u.rx.qos_control &
- IEEE80211_QOS_CONTROL_A_MSDU_PRESENT)
- is_agg_frame = 1;
- } else {
- if (unlikely((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)) {
- /* Separate TID for management frames */
- tid = NUM_RX_DATA_QUEUES - 1;
- } else {
- /* no qos control present */
- tid = 0; /* 802.1d - Best Effort */
- }
- rx->u.rx.qos_control = 0;
- }
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- I802_DEBUG_INC(rx->local->wme_rx_queue[tid]);
- if (rx->sta) {
- I802_DEBUG_INC(rx->sta->wme_rx_queue[tid]);
- }
-#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
-
- rx->u.rx.queue = tid;
- rx->u.rx.is_agg_frame = is_agg_frame;
- /* Set skb->priority to 1d tag if highest order bit of TID is not set.
- * For now, set skb->priority to 0 for other cases. */
- rx->skb->priority = (tid > 7) ? 0 : tid;
-
- return TXRX_CONTINUE;
-}
-
-
-ieee80211_txrx_result
-ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx)
-{
- u16 fc = rx->fc;
- u8 *data = rx->skb->data;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) data;
-
- if (!WLAN_FC_IS_QOS_DATA(fc))
- return TXRX_CONTINUE;
-
- /* remove the qos control field, update frame type and meta-data */
- memmove(data + 2, data, ieee80211_get_hdrlen(fc) - 2);
- hdr = (struct ieee80211_hdr *) skb_pull(rx->skb, 2);
- /* change frame type to non QOS */
- rx->fc = fc &= ~IEEE80211_STYPE_QOS_DATA;
- hdr->frame_control = cpu_to_le16(fc);
-
- return TXRX_CONTINUE;
-}
-
-
-#ifdef CONFIG_NET_SCHED
/* maximum number of hardware queues we support. */
#define TC_80211_MAX_QUEUES 8
static inline int classify80211(struct sk_buff *skb, struct Qdisc *qd)
{
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(qd->dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- struct ieee80211_tx_packet_data *pkt_data =
- (struct ieee80211_tx_packet_data *) skb->cb;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
unsigned short fc = le16_to_cpu(hdr->frame_control);
- int qos, tsid, dir;
+ int qos;
const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 };
/* see if frame is data or non data frame */
return IEEE80211_TX_QUEUE_DATA0;
}
- if (unlikely(pkt_data->mgmt_iface)) {
- /* Data frames from hostapd (mainly, EAPOL) use AC_VO
- * and they will include QoS control fields if
- * the target STA is using WME. */
- skb->priority = 7;
- return ieee802_1d_to_ac[skb->priority];
+ if (0 /* injected */) {
+ /* use AC from radiotap */
}
/* is this a QoS frame? */
/* use the data classifier to determine what 802.1d tag the
* data frame has */
skb->priority = classify_1d(skb, qd);
- tsid = 8 + skb->priority;
-
- /* FIXME: only uplink needs to be checked for Tx */
- dir = STA_TS_UPLINK;
-
- if ((sdata->type == IEEE80211_IF_TYPE_STA) &&
- (local->wmm_acm & BIT(skb->priority))) {
- switch (ifsta->ts_data[tsid][dir].status) {
- case TS_STATUS_ACTIVE:
- /* if TS Management is enabled, update used_time */
- ifsta->ts_data[tsid][dir].used_time_usec +=
- ifsta->MPDUExchangeTime;
- break;
- case TS_STATUS_THROTTLING:
- /* if admitted time is used up, refuse to send more */
- if (net_ratelimit())
- printk(KERN_DEBUG "QoS packet throttling\n");
- break;
- default:
- break;
- }
- }
/* in case we are a client verify acm is not set for this ac */
- while ((local->wmm_acm & BIT(skb->priority)) &&
- !((sdata->type == IEEE80211_IF_TYPE_STA) &&
- (ifsta->ts_data[skb->priority + EDCA_TSID_MIN][dir].status
- == TS_STATUS_ACTIVE))) {
+ while (unlikely(local->wmm_acm & BIT(skb->priority))) {
if (wme_downgrade_ac(skb)) {
/* No AC with lower priority has acm=0, drop packet. */
return -1;
struct Qdisc *qdisc;
int err, queue;
- if (pkt_data->requeue) {
+ if (pkt_data->flags & IEEE80211_TXPD_REQUEUE) {
skb_queue_tail(&q->requeued[pkt_data->queue], skb);
qd->q.qlen++;
return 0;
skb_queue_head_init(&q->requeued[i]);
q->queues[i] = qdisc_create_dflt(qd->dev, &pfifo_qdisc_ops,
qd->handle);
- if (q->queues[i] == 0) {
+ if (!q->queues[i]) {
q->queues[i] = &noop_qdisc;
printk(KERN_ERR "%s child qdisc %i creation failed", dev->name, i);
}
{
unregister_qdisc(&wme_qdisc_ops);
}
-#endif /* CONFIG_NET_SCHED */
#define QOS_CONTROL_TAG1D_MASK 0x07
-ieee80211_txrx_result
-ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx);
-
-ieee80211_txrx_result
-ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx);
+static inline int WLAN_FC_IS_QOS_DATA(u16 fc)
+{
+ return (fc & 0x8C) == 0x88;
+}
#ifdef CONFIG_NET_SCHED
void ieee80211_install_qdisc(struct net_device *dev);
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/compiler.h>
-#include <net/iw_handler.h>
-
#include <net/mac80211.h>
-#include "ieee80211_common.h"
+
#include "ieee80211_i.h"
#include "michael.h"
#include "tkip.h"
#include "aes_ccm.h"
#include "wpa.h"
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-#include "hostapd_ioctl.h"
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
static int ieee80211_get_hdr_info(const struct sk_buff *skb, u8 **sa, u8 **da,
u8 *qos_tid, u8 **data, size_t *data_len)
fc = tx->fc;
- if (!tx->key || tx->key->alg != ALG_TKIP || skb->len < 24 ||
+ if (!tx->key || tx->key->conf.alg != ALG_TKIP || skb->len < 24 ||
!WLAN_FC_DATA_PRESENT(fc))
return TXRX_CONTINUE;
if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len))
return TXRX_DROP;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if ((tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC) ||
- (!tx->u.tx.unicast &&
- tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC)) {
- wpa_test = 1;
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- if (!tx->key->force_sw_encrypt &&
- !tx->fragmented &&
- !(tx->local->hw.flags & IEEE80211_HW_TKIP_INCLUDE_MMIC) &&
+ if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
+ !(tx->flags & IEEE80211_TXRXD_FRAGMENTED) &&
+ !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) &&
!wpa_test) {
/* hwaccel - with no need for preallocated room for Michael MIC
*/
#else
authenticator = 1;
#endif
- key = &tx->key->key[authenticator ? ALG_TKIP_TEMP_AUTH_TX_MIC_KEY :
- ALG_TKIP_TEMP_AUTH_RX_MIC_KEY];
+ key = &tx->key->conf.key[authenticator ? ALG_TKIP_TEMP_AUTH_TX_MIC_KEY :
+ ALG_TKIP_TEMP_AUTH_RX_MIC_KEY];
mic = skb_put(skb, MICHAEL_MIC_LEN);
michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC) {
- printk(KERN_INFO "%s: WPA testing - corrupting TX Michael MIC "
- "for STA " MAC_FMT "\n",
- tx->dev->name, MAC_ARG(tx->sta->addr));
- tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
- tx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_MIC;
- tx->wpa_test = 1;
- mic[0]++;
- } else if (!tx->u.tx.unicast &&
- tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC) {
- printk(KERN_INFO "%s: WPA testing - corrupting TX Michael MIC "
- "for Group Key\n", tx->dev->name);
- tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
- tx->local->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_MIC;
- tx->wpa_test = 1;
- mic[0]++;
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
return TXRX_CONTINUE;
}
fc = rx->fc;
- /* If device handles decryption totally, skip this check */
- if ((rx->local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP) ||
- (rx->local->hw.flags & IEEE80211_HW_DEVICE_STRIPS_MIC))
+ /*
+ * No way to verify the MIC if the hardware stripped it
+ */
+ if (rx->u.rx.status->flag & RX_FLAG_MMIC_STRIPPED)
return TXRX_CONTINUE;
- if (!rx->key || rx->key->alg != ALG_TKIP ||
+ if (!rx->key || rx->key->conf.alg != ALG_TKIP ||
!(rx->fc & IEEE80211_FCTL_PROTECTED) || !WLAN_FC_DATA_PRESENT(fc))
return TXRX_CONTINUE;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (rx->sta && rx->sta->wpa_trigger & WPA_TRIGGER_FAIL_RX_MIC) {
- wpa_test = 1;
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
- !rx->key->force_sw_encrypt) {
- if (rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) {
- if (skb->len < MICHAEL_MIC_LEN)
- return TXRX_DROP;
- }
- /* Need to verify Michael MIC sometimes in software even when
- * hwaccel is used. Atheros ar5212: fragmented frames and QoS
- * frames. */
- if (!rx->fragmented && !wpa_test)
- goto remove_mic;
- }
-
if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len)
|| data_len < MICHAEL_MIC_LEN)
return TXRX_DROP;
#else
authenticator = 1;
#endif
- key = &rx->key->key[authenticator ? ALG_TKIP_TEMP_AUTH_RX_MIC_KEY :
- ALG_TKIP_TEMP_AUTH_TX_MIC_KEY];
+ key = &rx->key->conf.key[authenticator ? ALG_TKIP_TEMP_AUTH_RX_MIC_KEY :
+ ALG_TKIP_TEMP_AUTH_TX_MIC_KEY];
michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (rx->sta && rx->sta->wpa_trigger & WPA_TRIGGER_FAIL_RX_MIC) {
- printk(KERN_INFO "%s: WPA testing - corrupting RX Michael MIC "
- "for STA " MAC_FMT "\n",
- rx->dev->name, MAC_ARG(rx->sta->addr));
- rx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_RX_MIC;
- mic[0]++;
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0 || wpa_test) {
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- int i;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- if (!rx->u.rx.ra_match)
+ if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
return TXRX_DROP;
printk(KERN_DEBUG "%s: invalid Michael MIC in data frame from "
MAC_FMT "\n", rx->dev->name, MAC_ARG(sa));
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- printk(KERN_DEBUG " received");
- for (i = 0; i < MICHAEL_MIC_LEN; i++)
- printk(" %02x", data[data_len + i]);
- printk(" expected");
- for (i = 0; i < MICHAEL_MIC_LEN; i++)
- printk(" %02x", mic[i]);
- printk("\n");
- printk(KERN_DEBUG " SA=" MAC_FMT " DA=" MAC_FMT " key",
- MAC_ARG(sa), MAC_ARG(da));
- for (i = 0; i < 8; i++)
- printk(" %02x", key[i]);
- printk(" (%d)\n", authenticator);
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- do {
- struct ieee80211_hdr *hdr;
- union iwreq_data wrqu;
- char *buf = kmalloc(128, GFP_ATOMIC);
- if (!buf)
- break;
-
- /* TODO: needed parameters: count, key type, TSC */
- hdr = (struct ieee80211_hdr *) skb->data;
- sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
- "keyid=%d %scast addr=" MAC_FMT ")",
- rx->key->keyidx,
- hdr->addr1[0] & 0x01 ? "broad" : "uni",
- MAC_ARG(hdr->addr2));
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = strlen(buf);
- wireless_send_event(rx->dev, IWEVCUSTOM, &wrqu, buf);
- kfree(buf);
- } while (0);
-
- if (!rx->local->apdev)
- return TXRX_DROP;
- ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
- ieee80211_msg_michael_mic_failure);
-
- return TXRX_QUEUED;
+ mac80211_ev_michael_mic_failure(rx->dev, rx->key->conf.keyidx,
+ (void *) skb->data);
+ return TXRX_DROP;
}
- remove_mic:
/* remove Michael MIC from payload */
skb_trim(skb, skb->len - MICHAEL_MIC_LEN);
+ /* update IV in key information to be able to detect replays */
+ rx->key->u.tkip.iv32_rx[rx->u.rx.queue] = rx->u.rx.tkip_iv32;
+ rx->key->u.tkip.iv16_rx[rx->u.rx.queue] = rx->u.rx.tkip_iv16;
+
return TXRX_CONTINUE;
}
hdrlen = ieee80211_get_hdrlen(fc);
len = skb->len - hdrlen;
- tailneed = !tx->key->force_sw_encrypt ? 0 : TKIP_ICV_LEN;
+ if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
+ tailneed = 0;
+ else
+ tailneed = TKIP_ICV_LEN;
+
if ((skb_headroom(skb) < TKIP_IV_LEN ||
skb_tailroom(skb) < tailneed)) {
I802_DEBUG_INC(tx->local->tx_expand_skb_head);
memmove(pos, pos + TKIP_IV_LEN, hdrlen);
pos += hdrlen;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (test & WPA_TRIGGER_TX_REPLAY)
- goto skip_iv_inc;
-iv_inc:
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
/* Increase IV for the frame */
key->u.tkip.iv16++;
if (key->u.tkip.iv16 == 0)
key->u.tkip.iv32++;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (test & WPA_TRIGGER_TX_SKIP_SEQ) {
- test = 0;
- goto iv_inc;
- }
-skip_iv_inc:
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- if (!tx->key->force_sw_encrypt
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- && !tx->wpa_test
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
- ) {
- u32 flags = tx->local->hw.flags;
+ if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
hdr = (struct ieee80211_hdr *)skb->data;
/* hwaccel - with preallocated room for IV */
0x7f),
(u8) key->u.tkip.iv16);
- if (flags & IEEE80211_HW_TKIP_REQ_PHASE2_KEY)
- ieee80211_tkip_gen_rc4key(key, hdr->addr2,
- tx->u.tx.control->tkip_key);
- else if (flags & IEEE80211_HW_TKIP_REQ_PHASE1_KEY) {
- if (key->u.tkip.iv16 == 0 ||
- !key->u.tkip.tx_initialized) {
- ieee80211_tkip_gen_phase1key(key, hdr->addr2,
- (u16 *)tx->u.tx.control->tkip_key);
- key->u.tkip.tx_initialized = 1;
- tx->u.tx.control->flags |=
- IEEE80211_TXCTL_TKIP_NEW_PHASE1_KEY;
- } else
- tx->u.tx.control->flags &=
- ~IEEE80211_TXCTL_TKIP_NEW_PHASE1_KEY;
- }
-
- tx->u.tx.control->key_idx = tx->key->hw_key_idx;
+ tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
return 0;
}
ieee80211_txrx_result
-ieee80211_tx_h_tkip_encrypt(struct ieee80211_txrx_data *tx)
+ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
u16 fc;
- struct ieee80211_key *key = tx->key;
struct sk_buff *skb = tx->skb;
int wpa_test = 0, test = 0;
fc = le16_to_cpu(hdr->frame_control);
- if (!key || key->alg != ALG_TKIP || !WLAN_FC_DATA_PRESENT(fc))
+ if (!WLAN_FC_DATA_PRESENT(fc))
return TXRX_CONTINUE;
tx->u.tx.control->icv_len = TKIP_ICV_LEN;
tx->u.tx.control->iv_len = TKIP_IV_LEN;
ieee80211_tx_set_iswep(tx);
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if ((tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV) ||
- (!tx->u.tx.unicast &&
- tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV)) {
- wpa_test = 1;
- }
-
- if (tx->sta) {
- test = tx->sta->wpa_trigger;
- tx->sta->wpa_trigger &=
- ~(WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
- WPA_TRIGGER_TX_SKIP_SEQ);
- } else {
- test = tx->local->wpa_trigger;
- tx->local->wpa_trigger &=
- ~(WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
- WPA_TRIGGER_TX_SKIP_SEQ);
- }
- if (test &
- (WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
- WPA_TRIGGER_TX_SKIP_SEQ)) {
- printk(KERN_INFO "%s: WPA testing - TKIP TX packet number "
- "%s%s%s%s\n", tx->dev->name,
- tx->sta ? "[UNICAST]" : "[MULTICAST]",
- test & WPA_TRIGGER_TX_REPLAY ? "[REPLAY]" : "",
- test & WPA_TRIGGER_TX_REPLAY_FRAG ?
- "[REPLAY FRAG]" : "",
- test & WPA_TRIGGER_TX_SKIP_SEQ ? "[SKIP SEQ]" : "");
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- if (!tx->key->force_sw_encrypt &&
- !(tx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) &&
+ if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
+ !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) &&
!wpa_test) {
/* hwaccel - with no need for preallocated room for IV/ICV */
- tx->u.tx.control->key_idx = tx->key->hw_key_idx;
+ tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
return TXRX_CONTINUE;
}
if (tx->u.tx.extra_frag) {
int i;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (test & WPA_TRIGGER_TX_REPLAY_FRAG)
- test |= WPA_TRIGGER_TX_REPLAY;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
if (tkip_encrypt_skb(tx, tx->u.tx.extra_frag[i], test)
< 0)
}
}
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV) {
- printk(KERN_INFO "%s: WPA testing - corrupting TX TKIP ICV "
- "for STA " MAC_FMT "\n",
- tx->dev->name, MAC_ARG(tx->sta->addr));
- tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
- tx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_ICV;
- skb->data[skb->len - 1]++;
- } else if (!tx->u.tx.unicast &&
- tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV) {
- printk(KERN_INFO "%s: WPA testing - corrupting TX TKIP ICV "
- "for Group Key\n",
- tx->dev->name);
- tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
- tx->local->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_ICV;
- skb->data[skb->len - 1]++;
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
return TXRX_CONTINUE;
}
ieee80211_txrx_result
-ieee80211_rx_h_tkip_decrypt(struct ieee80211_txrx_data *rx)
+ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
u16 fc;
fc = le16_to_cpu(hdr->frame_control);
hdrlen = ieee80211_get_hdrlen(fc);
- if (!rx->key || rx->key->alg != ALG_TKIP ||
- !(rx->fc & IEEE80211_FCTL_PROTECTED) ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
+ if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
return TXRX_CONTINUE;
if (!rx->sta || skb->len - hdrlen < 12)
return TXRX_DROP;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (rx->sta && rx->sta->wpa_trigger & WPA_TRIGGER_FAIL_RX_ICV) {
- printk(KERN_INFO "%s: WPA testing - corrupting RX TKIP ICV "
- "for STA " MAC_FMT "\n",
- rx->dev->name, MAC_ARG(rx->sta->addr));
- rx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_RX_ICV;
- skb->data[skb->len - 1]++;
- wpa_test = 1;
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
- !rx->key->force_sw_encrypt) {
- if (!(rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV)) {
- /* Hardware takes care of all processing, including
- * replay protection, so no need to continue here. */
+ if (rx->u.rx.status->flag & RX_FLAG_DECRYPTED) {
+ if (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED) {
+ /*
+ * Hardware took care of all processing, including
+ * replay protection, and stripped the ICV/IV so
+ * we cannot do any checks here.
+ */
return TXRX_CONTINUE;
}
res = ieee80211_tkip_decrypt_data(rx->local->wep_rx_tfm,
key, skb->data + hdrlen,
skb->len - hdrlen, rx->sta->addr,
- hwaccel, rx->u.rx.queue);
+ hwaccel, rx->u.rx.queue,
+ &rx->u.rx.tkip_iv32,
+ &rx->u.rx.tkip_iv16);
if (res != TKIP_DECRYPT_OK || wpa_test) {
printk(KERN_DEBUG "%s: TKIP decrypt failed for RX frame from "
MAC_FMT " (res=%d)\n",
hdrlen = ieee80211_get_hdrlen(fc);
len = skb->len - hdrlen;
- tailneed = !key->force_sw_encrypt ? 0 : CCMP_MIC_LEN;
+ if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
+ tailneed = 0;
+ else
+ tailneed = CCMP_MIC_LEN;
if ((skb_headroom(skb) < CCMP_HDR_LEN ||
skb_tailroom(skb) < tailneed)) {
/* PN = PN + 1 */
pn = key->u.ccmp.tx_pn;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (test & WPA_TRIGGER_TX_REPLAY)
- goto skip_pn_inc;
-pn_inc:
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
pn[i]++;
if (pn[i])
break;
}
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (test & WPA_TRIGGER_TX_SKIP_SEQ) {
- test = 0;
- goto pn_inc;
- }
-skip_pn_inc:
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- ccmp_pn2hdr(pos, pn, key->keyidx);
+ ccmp_pn2hdr(pos, pn, key->conf.keyidx);
- if (!key->force_sw_encrypt) {
+ if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
/* hwaccel - with preallocated room for CCMP header */
- tx->u.tx.control->key_idx = key->hw_key_idx;
+ tx->u.tx.control->key_idx = key->conf.hw_key_idx;
return 0;
}
ieee80211_txrx_result
-ieee80211_tx_h_ccmp_encrypt(struct ieee80211_txrx_data *tx)
+ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- struct ieee80211_key *key = tx->key;
u16 fc;
struct sk_buff *skb = tx->skb;
int test = 0;
fc = le16_to_cpu(hdr->frame_control);
- if (!key || key->alg != ALG_CCMP || !WLAN_FC_DATA_PRESENT(fc))
+ if (!WLAN_FC_DATA_PRESENT(fc))
return TXRX_CONTINUE;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (tx->sta) {
- test = tx->sta->wpa_trigger;
- tx->sta->wpa_trigger = 0;
- } else {
- test = tx->local->wpa_trigger;
- tx->local->wpa_trigger = 0;
- }
- if (test &
- (WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
- WPA_TRIGGER_TX_SKIP_SEQ)) {
- printk(KERN_INFO "%s: WPA testing - CCMP TX packet number "
- "%s%s%s%s\n", tx->dev->name,
- tx->sta ? "[UNICAST]" : "[MULTICAST]",
- test & WPA_TRIGGER_TX_REPLAY ? "[REPLAY]" : "",
- test & WPA_TRIGGER_TX_REPLAY_FRAG ?
- "[REPLAY FRAG]" : "",
- test & WPA_TRIGGER_TX_SKIP_SEQ ? "[SKIP SEQ]" : "");
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
tx->u.tx.control->icv_len = CCMP_MIC_LEN;
tx->u.tx.control->iv_len = CCMP_HDR_LEN;
ieee80211_tx_set_iswep(tx);
- if (!tx->key->force_sw_encrypt &&
- !(tx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV)) {
+ if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
+ !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
/* hwaccel - with no need for preallocated room for CCMP "
* header or MIC fields */
- tx->u.tx.control->key_idx = tx->key->hw_key_idx;
+ tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
return TXRX_CONTINUE;
}
if (tx->u.tx.extra_frag) {
int i;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (test & WPA_TRIGGER_TX_REPLAY_FRAG)
- test |= WPA_TRIGGER_TX_REPLAY;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
if (ccmp_encrypt_skb(tx, tx->u.tx.extra_frag[i], test)
< 0)
ieee80211_txrx_result
-ieee80211_rx_h_ccmp_decrypt(struct ieee80211_txrx_data *rx)
+ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
u16 fc;
fc = le16_to_cpu(hdr->frame_control);
hdrlen = ieee80211_get_hdrlen(fc);
- if (!key || key->alg != ALG_CCMP ||
- !(rx->fc & IEEE80211_FCTL_PROTECTED) ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
+ if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
return TXRX_CONTINUE;
data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN;
return TXRX_DROP;
if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
- !key->force_sw_encrypt &&
- !(rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV))
+ (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED))
return TXRX_CONTINUE;
(void) ccmp_hdr2pn(pn, skb->data + hdrlen);
return TXRX_DROP;
}
- if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
- !key->force_sw_encrypt) {
- /* hwaccel has already decrypted frame and verified MIC */
- } else {
+ if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) {
+ /* hardware didn't decrypt/verify MIC */
u8 *scratch, *b_0, *aad;
scratch = key->u.ccmp.rx_crypto_buf;
ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx);
ieee80211_txrx_result
-ieee80211_tx_h_tkip_encrypt(struct ieee80211_txrx_data *tx);
+ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx);
ieee80211_txrx_result
-ieee80211_rx_h_tkip_decrypt(struct ieee80211_txrx_data *rx);
+ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx);
ieee80211_txrx_result
-ieee80211_tx_h_ccmp_encrypt(struct ieee80211_txrx_data *tx);
+ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx);
ieee80211_txrx_result
-ieee80211_rx_h_ccmp_decrypt(struct ieee80211_txrx_data *rx);
+ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx);
#endif /* WPA_H */
-obj-$(CONFIG_WIRELESS_EXT) += wext.o
obj-$(CONFIG_CFG80211) += cfg80211.o
-cfg80211-y += core.o sysfs.o
+cfg80211-y += core.o sysfs.o radiotap.o
cfg80211-$(CONFIG_NL80211) += nl80211.o
/* this will check for collisions */
result = device_rename(&rdev->wiphy.dev, newname);
- if (!result)
+ if (result)
return result;
- /* TODO: do debugfs rename! */
+ if (!debugfs_rename(rdev->wiphy.debugfsdir->d_parent,
+ rdev->wiphy.debugfsdir,
+ rdev->wiphy.debugfsdir->d_parent,
+ newname))
+ printk(KERN_ERR "cfg80211: failed to rename debugfs dir to %s!\n",
+ newname);
nl80211_notify_dev_rename(rdev);
out_fail_sysfs:
return err;
}
-module_init(cfg80211_init);
+subsys_initcall(cfg80211_init);
static void cfg80211_exit(void)
{
/*
* This is the new netlink-based wireless configuration interface.
*
- * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
*/
#include <linux/if.h>
#include <linux/ieee80211.h>
#include <linux/nl80211.h>
#include <linux/rtnetlink.h>
+#include <linux/netlink.h>
#include <net/genetlink.h>
#include <net/cfg80211.h>
#include "core.h"
.maxattr = NL80211_ATTR_MAX,
};
-/* internal helper: validate an information element attribute */
-static int check_information_element(struct nlattr *nla)
-{
- int len = nla_len(nla);
- u8 *data = nla_data(nla);
- int elementlen;
-
- while (len >= 2) {
- /* 1 byte ID, 1 byte len, `len' bytes data */
- elementlen = *(data+1) + 2;
- data += elementlen;
- len -= elementlen;
- }
- return len ? -EINVAL : 0;
-}
-
/* internal helper: get drv and dev */
static int get_drv_dev_by_info_ifindex(struct genl_info *info,
struct cfg80211_registered_device **drv,
ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
*dev = dev_get_by_index(ifindex);
- if (!dev)
+ if (!*dev)
return -ENODEV;
*drv = cfg80211_get_dev_from_ifindex(ifindex);
/* policy for the attributes */
static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
- [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
- [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
[NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
[NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
.len = BUS_ID_SIZE-1 },
+
[NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
- [NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
- [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
- .len = IEEE80211_MAX_SSID_LEN },
- [NL80211_ATTR_CHANNEL] = { .type = NLA_U32 },
- [NL80211_ATTR_PHYMODE] = { .type = NLA_U32 },
- [NL80211_ATTR_CHANNEL_LIST] = { .type = NLA_NESTED },
- [NL80211_ATTR_BSS_LIST] = { .type = NLA_NESTED },
- [NL80211_ATTR_BSSTYPE] = { .type = NLA_U32 },
- [NL80211_ATTR_BEACON_PERIOD] = { .type = NLA_U32 },
- [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
- [NL80211_ATTR_TIMESTAMP] = { .type = NLA_U64 },
- [NL80211_ATTR_IE] = { .type = NLA_BINARY, .len = NL80211_MAX_IE_LEN },
- [NL80211_ATTR_AUTH_ALGORITHM] = { .type = NLA_U32 },
- [NL80211_ATTR_TIMEOUT_TU] = { .type = NLA_U32 },
- [NL80211_ATTR_REASON_CODE] = { .type = NLA_U32 },
- [NL80211_ATTR_ASSOCIATION_ID] = { .type = NLA_U16 },
- [NL80211_ATTR_DEAUTHENTICATED] = { .type = NLA_FLAG },
- [NL80211_ATTR_RX_SENSITIVITY] = { .type = NLA_U32 },
- [NL80211_ATTR_TRANSMIT_POWER] = { .type = NLA_U32 },
- [NL80211_ATTR_FRAG_THRESHOLD] = { .type = NLA_U32 },
- [NL80211_ATTR_FLAG_SCAN_ACTIVE] = { .type = NLA_FLAG },
- [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY },
- [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY },
- [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
- .len = WLAN_MAX_KEY_LEN },
- [NL80211_ATTR_KEY_ID] = { .type = NLA_U32 },
- [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
- [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
- [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
+ [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
+ [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
};
-/* netlink command implementations */
+/* message building helper */
+static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
+ int flags, u8 cmd)
+{
+ /* since there is no private header just add the generic one */
+ return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
+}
-#define CHECK_CMD(ptr, cmd) \
- if (drv->ops->ptr) \
- NLA_PUT_FLAG(msg, NL80211_CMD_##cmd);
+/* netlink command implementations */
-static int nl80211_get_cmdlist(struct sk_buff *skb, struct genl_info *info)
+static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
+ struct cfg80211_registered_device *dev)
{
- struct cfg80211_registered_device *drv;
- struct sk_buff *msg;
void *hdr;
- int err;
- struct nlattr *start;
- drv = cfg80211_get_dev_from_info(info);
- if (IS_ERR(drv))
- return PTR_ERR(drv);
-
- hdr = nl80211msg_new(&msg, info->snd_pid, info->snd_seq, 0,
- NL80211_CMD_NEW_CMDLIST);
- if (IS_ERR(hdr)) {
- err = PTR_ERR(hdr);
- goto put_drv;
- }
+ hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
+ if (!hdr)
+ return -1;
- NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, drv->idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
+ NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
+ return genlmsg_end(msg, hdr);
- start = nla_nest_start(msg, NL80211_ATTR_CMDS);
- if (!start)
- goto nla_put_failure;
-
- /* unconditionally allow some common commands we handle centrally
- * or where we require the implementation */
- NLA_PUT_FLAG(msg, NL80211_CMD_GET_CMDLIST);
- NLA_PUT_FLAG(msg, NL80211_CMD_GET_WIPHYS);
- NLA_PUT_FLAG(msg, NL80211_CMD_GET_INTERFACES);
- NLA_PUT_FLAG(msg, NL80211_CMD_RENAME_WIPHY);
-
- CHECK_CMD(add_virtual_intf, ADD_VIRTUAL_INTERFACE);
- CHECK_CMD(del_virtual_intf, DEL_VIRTUAL_INTERFACE);
- CHECK_CMD(associate, ASSOCIATE);
- CHECK_CMD(disassociate, DISASSOCIATE);
- CHECK_CMD(deauth, DEAUTH);
- CHECK_CMD(initiate_scan, INITIATE_SCAN);
- CHECK_CMD(get_association, GET_ASSOCIATION);
- CHECK_CMD(get_auth_list, GET_AUTH_LIST);
- CHECK_CMD(add_key, ADD_KEY);
- CHECK_CMD(del_key, DEL_KEY);
+ nla_put_failure:
+ return genlmsg_cancel(msg, hdr);
+}
- nla_nest_end(msg, start);
+static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ int idx = 0;
+ int start = cb->args[0];
+ struct cfg80211_registered_device *dev;
- genlmsg_end(msg, hdr);
+ mutex_lock(&cfg80211_drv_mutex);
+ list_for_each_entry(dev, &cfg80211_drv_list, list) {
+ if (++idx < start)
+ continue;
+ if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq, NLM_F_MULTI,
+ dev) < 0)
+ break;
+ }
+ mutex_unlock(&cfg80211_drv_mutex);
- err = genlmsg_unicast(msg, info->snd_pid);
- goto put_drv;
+ cb->args[0] = idx;
- nla_put_failure:
- err = -ENOBUFS;
- nlmsg_free(msg);
- put_drv:
- cfg80211_put_dev(drv);
- return err;
+ return skb->len;
}
-#undef CHECK_CMD
-static int nl80211_get_wiphys(struct sk_buff *skb, struct genl_info *info)
+static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
{
struct sk_buff *msg;
- void *hdr;
- struct nlattr *start, *indexstart;
- struct cfg80211_registered_device *drv;
- int idx = 1;
-
- hdr = nl80211msg_new(&msg, info->snd_pid, info->snd_seq, 0,
- NL80211_CMD_NEW_WIPHYS);
- if (IS_ERR(hdr))
- return PTR_ERR(hdr);
+ struct cfg80211_registered_device *dev;
- start = nla_nest_start(msg, NL80211_ATTR_WIPHY_LIST);
- if (!start)
- goto nla_outer_nest_failure;
+ dev = cfg80211_get_dev_from_info(info);
+ if (IS_ERR(dev))
+ return PTR_ERR(dev);
- mutex_lock(&cfg80211_drv_mutex);
- list_for_each_entry(drv, &cfg80211_drv_list, list) {
- indexstart = nla_nest_start(msg, idx++);
- if (!indexstart)
- goto nla_put_failure;
- NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, drv->idx);
- nla_nest_end(msg, indexstart);
- }
- mutex_unlock(&cfg80211_drv_mutex);
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ goto out_err;
- nla_nest_end(msg, start);
+ if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
+ goto out_free;
- genlmsg_end(msg, hdr);
+ cfg80211_put_dev(dev);
return genlmsg_unicast(msg, info->snd_pid);
- nla_put_failure:
- mutex_unlock(&cfg80211_drv_mutex);
- nla_outer_nest_failure:
+ out_free:
nlmsg_free(msg);
+ out_err:
+ cfg80211_put_dev(dev);
return -ENOBUFS;
}
-static int addifidx(struct net_device *dev, struct sk_buff *skb, int *idx)
+static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
{
- int err = -ENOBUFS;
- struct nlattr *start;
-
- dev_hold(dev);
+ struct cfg80211_registered_device *rdev;
+ int result;
- start = nla_nest_start(skb, *idx++);
- if (!start)
- goto nla_put_failure;
+ if (!info->attrs[NL80211_ATTR_WIPHY_NAME])
+ return -EINVAL;
- NLA_PUT_U32(skb, NL80211_ATTR_IFINDEX, dev->ifindex);
- NLA_PUT_STRING(skb, NL80211_ATTR_IFNAME, dev->name);
+ rdev = cfg80211_get_dev_from_info(info);
+ if (IS_ERR(rdev))
+ return PTR_ERR(rdev);
- nla_nest_end(skb, start);
- err = 0;
+ result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
- nla_put_failure:
- dev_put(dev);
- return err;
+ cfg80211_put_dev(rdev);
+ return result;
}
-static int nl80211_get_intfs(struct sk_buff *skb, struct genl_info *info)
+
+static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
+ struct net_device *dev)
{
- struct cfg80211_registered_device *drv;
- struct sk_buff *msg;
void *hdr;
- int err, array_idx;
- struct nlattr *start;
- struct wireless_dev *wdev;
-
- drv = cfg80211_get_dev_from_info(info);
- if (IS_ERR(drv))
- return PTR_ERR(drv);
-
- hdr = nl80211msg_new(&msg, info->snd_pid, info->snd_seq, 0,
- NL80211_CMD_NEW_INTERFACES);
- if (IS_ERR(hdr)) {
- err = PTR_ERR(hdr);
- goto put_drv;
- }
- NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, drv->idx);
+ hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
+ if (!hdr)
+ return -1;
- start = nla_nest_start(msg, NL80211_ATTR_INTERFACE_LIST);
- if (!start) {
- err = -ENOBUFS;
- goto msg_free;
- }
-
- array_idx = 1;
- err = 0;
- mutex_lock(&drv->devlist_mtx);
- list_for_each_entry(wdev, &drv->netdev_list, list) {
- err = addifidx(wdev->netdev, msg, &array_idx);
- if (err)
- break;
- }
- mutex_unlock(&drv->devlist_mtx);
- if (err)
- goto msg_free;
-
- nla_nest_end(msg, start);
-
- genlmsg_end(msg, hdr);
-
- err = genlmsg_unicast(msg, info->snd_pid);
- goto put_drv;
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
+ NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
+ /* TODO: interface type */
+ return genlmsg_end(msg, hdr);
nla_put_failure:
- err = -ENOBUFS;
- msg_free:
- nlmsg_free(msg);
- put_drv:
- cfg80211_put_dev(drv);
- return err;
+ return genlmsg_cancel(msg, hdr);
}
-static int nl80211_add_virt_intf(struct sk_buff *skb, struct genl_info *info)
+static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
{
- struct cfg80211_registered_device *drv;
- int err;
- enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
-
- if (!info->attrs[NL80211_ATTR_IFNAME])
- return -EINVAL;
+ int wp_idx = 0;
+ int if_idx = 0;
+ int wp_start = cb->args[0];
+ int if_start = cb->args[1];
+ struct cfg80211_registered_device *dev;
+ struct wireless_dev *wdev;
- if (info->attrs[NL80211_ATTR_IFTYPE]) {
- type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
- if (type > NL80211_IFTYPE_MAX)
- return -EINVAL;
+ mutex_lock(&cfg80211_drv_mutex);
+ list_for_each_entry(dev, &cfg80211_drv_list, list) {
+ if (++wp_idx < wp_start)
+ continue;
+ if_idx = 0;
+
+ mutex_lock(&dev->devlist_mtx);
+ list_for_each_entry(wdev, &dev->netdev_list, list) {
+ if (++if_idx < if_start)
+ continue;
+ if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq, NLM_F_MULTI,
+ wdev->netdev) < 0)
+ break;
+ }
+ mutex_unlock(&dev->devlist_mtx);
}
+ mutex_unlock(&cfg80211_drv_mutex);
- drv = cfg80211_get_dev_from_info(info);
- if (IS_ERR(drv))
- return PTR_ERR(drv);
-
- if (!drv->ops->add_virtual_intf) {
- err = -EOPNOTSUPP;
- goto unlock;
- }
+ cb->args[0] = wp_idx;
+ cb->args[1] = if_idx;
- rtnl_lock();
- err = drv->ops->add_virtual_intf(&drv->wiphy,
- nla_data(info->attrs[NL80211_ATTR_IFNAME]), type);
- rtnl_unlock();
-
- unlock:
- cfg80211_put_dev(drv);
- return err;
+ return skb->len;
}
-static int nl80211_del_virt_intf(struct sk_buff *skb, struct genl_info *info)
+static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *drv;
- int ifindex, err;
- struct net_device *dev;
+ struct sk_buff *msg;
+ struct cfg80211_registered_device *dev;
+ struct net_device *netdev;
+ int err;
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
+ err = get_drv_dev_by_info_ifindex(info, &dev, &netdev);
if (err)
return err;
- ifindex = dev->ifindex;
- dev_put(dev);
- if (!drv->ops->del_virtual_intf) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ goto out_err;
- rtnl_lock();
- err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
- rtnl_unlock();
+ if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0)
+ goto out_free;
- out:
- cfg80211_put_dev(drv);
- return err;
+ dev_put(netdev);
+ cfg80211_put_dev(dev);
+
+ return genlmsg_unicast(msg, info->snd_pid);
+
+ out_free:
+ nlmsg_free(msg);
+ out_err:
+ dev_put(netdev);
+ cfg80211_put_dev(dev);
+ return -ENOBUFS;
}
-static int nl80211_change_virt_intf(struct sk_buff *skb, struct genl_info *info)
+static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
int err, ifindex;
return err;
}
-static int nl80211_get_association(struct sk_buff *skb, struct genl_info *info)
+static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
int err;
- struct net_device *dev;
- struct sk_buff *msg;
- void *hdr;
- u8 bssid[ETH_ALEN];
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
-
- if (!drv->ops->get_association) {
- err = -EOPNOTSUPP;
- goto out_put_drv;
- }
-
- rtnl_lock();
- err = drv->ops->get_association(&drv->wiphy, dev, bssid);
- rtnl_unlock();
- if (err < 0)
- goto out_put_drv;
-
- hdr = nl80211msg_new(&msg, info->snd_pid, info->snd_seq, 0,
- NL80211_CMD_ASSOCIATION_CHANGED);
-
- if (IS_ERR(hdr)) {
- err = PTR_ERR(hdr);
- goto out_put_drv;
- }
-
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
- if (err == 1)
- NLA_PUT(msg, NL80211_ATTR_BSSID, ETH_ALEN, bssid);
-
- genlmsg_end(msg, hdr);
- err = genlmsg_unicast(msg, info->snd_pid);
- goto out_put_drv;
-
- nla_put_failure:
- err = -ENOBUFS;
- nlmsg_free(msg);
- out_put_drv:
- cfg80211_put_dev(drv);
- dev_put(dev);
- return err;
-}
-
-static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err;
- struct net_device *dev;
- struct association_params assoc_params;
-
- memset(&assoc_params, 0, sizeof(assoc_params));
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
-
- if (!drv->ops->associate) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
- if (!info->attrs[NL80211_ATTR_SSID])
+ if (!info->attrs[NL80211_ATTR_IFNAME])
return -EINVAL;
- assoc_params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
- assoc_params.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
-
- if (info->attrs[NL80211_ATTR_BSSID])
- assoc_params.bssid = nla_data(info->attrs[NL80211_ATTR_BSSID]);
-
- if (info->attrs[NL80211_ATTR_IE]) {
- err = check_information_element(info->attrs[NL80211_ATTR_IE]);
- if (err)
- goto out;
- assoc_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
- assoc_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
- }
-
- if (info->attrs[NL80211_ATTR_TIMEOUT_TU]) {
- assoc_params.timeout =
- nla_get_u32(info->attrs[NL80211_ATTR_TIMEOUT_TU]);
- assoc_params.valid |= ASSOC_PARAMS_TIMEOUT;
- }
-
- rtnl_lock();
- err = drv->ops->associate(&drv->wiphy, dev, &assoc_params);
- rtnl_unlock();
-
- out:
- cfg80211_put_dev(drv);
- dev_put(dev);
- return err;
-}
-
-static int nl80211_disassoc_deauth(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err;
- struct net_device *dev;
- int (*act)(struct wiphy *wiphy, struct net_device *dev);
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
-
- switch (info->genlhdr->cmd) {
- case NL80211_CMD_DISASSOCIATE:
- act = drv->ops->disassociate;
- break;
- case NL80211_CMD_DEAUTH:
- act = drv->ops->deauth;
- break;
- default:
- act = NULL;
- }
-
- if (!act) {
- err = -EOPNOTSUPP;
- goto out;
+ if (info->attrs[NL80211_ATTR_IFTYPE]) {
+ type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
+ if (type > NL80211_IFTYPE_MAX)
+ return -EINVAL;
}
- rtnl_lock();
- err = act(&drv->wiphy, dev);
- rtnl_unlock();
- out:
- cfg80211_put_dev(drv);
- dev_put(dev);
- return err;
-}
-
-struct add_cb_data {
- int idx;
- struct sk_buff *skb;
-};
-
-static int add_bssid(void *data, u8 *bssid)
-{
- struct add_cb_data *cb = data;
- int err = -ENOBUFS;
- struct nlattr *start;
-
- start = nla_nest_start(cb->skb, cb->idx++);
- if (!start)
- goto nla_put_failure;
-
- NLA_PUT(cb->skb, NL80211_ATTR_BSSID, ETH_ALEN, bssid);
-
- nla_nest_end(cb->skb, start);
- err = 0;
-
- nla_put_failure:
- return err;
-}
-
-static int nl80211_get_auth_list(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- struct net_device *dev;
- struct sk_buff *msg;
- void *hdr;
- int err;
- struct nlattr *start;
- struct add_cb_data cb;
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
+ drv = cfg80211_get_dev_from_info(info);
+ if (IS_ERR(drv))
+ return PTR_ERR(drv);
- if (!drv->ops->get_auth_list) {
+ if (!drv->ops->add_virtual_intf) {
err = -EOPNOTSUPP;
- goto put_drv;
- }
-
- hdr = nl80211msg_new(&msg, info->snd_pid, info->snd_seq, 0,
- NL80211_CMD_NEW_AUTH_LIST);
- if (IS_ERR(hdr)) {
- err = PTR_ERR(hdr);
- goto put_drv;
- }
-
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
-
- start = nla_nest_start(msg, NL80211_ATTR_BSS_LIST);
- if (!start) {
- err = -ENOBUFS;
- goto msg_free;
+ goto unlock;
}
- cb.skb = msg;
- cb.idx = 1;
rtnl_lock();
- err = drv->ops->get_auth_list(&drv->wiphy, dev, &cb, add_bssid);
+ err = drv->ops->add_virtual_intf(&drv->wiphy,
+ nla_data(info->attrs[NL80211_ATTR_IFNAME]), type);
rtnl_unlock();
- if (err)
- goto msg_free;
-
- nla_nest_end(msg, start);
- genlmsg_end(msg, hdr);
-
- err = genlmsg_unicast(msg, info->snd_pid);
- goto put_drv;
-
- nla_put_failure:
- err = -ENOBUFS;
- msg_free:
- nlmsg_free(msg);
- put_drv:
+ unlock:
cfg80211_put_dev(drv);
- dev_put(dev);
return err;
}
-static int nl80211_initiate_scan(struct sk_buff *skb, struct genl_info *info)
+static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
- int err;
+ int ifindex, err;
struct net_device *dev;
- struct scan_params params;
- struct scan_channel *channels = NULL;
- int count = -1;
-
- if (info->attrs[NL80211_ATTR_PHYMODE])
- params.phymode = nla_get_u32(info->attrs[NL80211_ATTR_PHYMODE]);
-
- if (params.phymode > NL80211_PHYMODE_MAX)
- return -EINVAL;
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
if (err)
return err;
-
- if (!drv->ops->initiate_scan) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- params.active = nla_get_flag(info->attrs[NL80211_ATTR_FLAG_SCAN_ACTIVE]);
-
- if (info->attrs[NL80211_ATTR_CHANNEL_LIST]) {
- struct nlattr *attr = info->attrs[NL80211_ATTR_CHANNEL_LIST];
- struct nlattr *nla;
- int rem;
- struct nlattr **tb;
-
- /* let's count first */
- count = 0;
- nla_for_each_attr(nla, nla_data(attr), nla_len(attr), rem)
- count++;
-
- if (count == 0) {
- /* assume we should actually scan all channels,
- * scanning no channels make no sense */
- count = -1;
- goto done_channels;
- }
-
- if (count > NL80211_MAX_CHANNEL_LIST_ITEM) {
- err = -EINVAL;
- goto out;
- }
-
- channels = kmalloc(count * sizeof(struct scan_channel),
- GFP_KERNEL);
- tb = kmalloc((NL80211_ATTR_MAX+1) * sizeof(struct nlattr),
- GFP_KERNEL);
-
- count = 0;
- nla_for_each_attr(nla, nla_data(attr), nla_len(attr), rem) {
- err = nla_parse(tb, NL80211_ATTR_MAX, nla_data(nla),
- nla_len(nla), nl80211_policy);
-
- if (err || !tb[NL80211_ATTR_CHANNEL]) {
- err = -EINVAL;
- kfree(tb);
- kfree(channels);
- goto out;
- }
-
- channels[count].phymode = params.phymode;
-
- if (tb[NL80211_ATTR_PHYMODE])
- channels[count].phymode =
- nla_get_u32(tb[NL80211_ATTR_PHYMODE]);
-
- if (channels[count].phymode > NL80211_PHYMODE_MAX) {
- err = -EINVAL;
- kfree(tb);
- kfree(channels);
- goto out;
- }
-
- channels[count].channel =
- nla_get_u32(tb[NL80211_ATTR_CHANNEL]);
-
- channels[count].active =
- nla_get_flag(tb[NL80211_ATTR_FLAG_SCAN_ACTIVE]);
- count++;
- }
- kfree(tb);
- }
-
- done_channels:
- params.channels = channels;
- params.n_channels = count;
-
- rtnl_lock();
- err = drv->ops->initiate_scan(&drv->wiphy, dev, ¶ms);
- rtnl_unlock();
-
- kfree(channels);
- out:
- cfg80211_put_dev(drv);
+ ifindex = dev->ifindex;
dev_put(dev);
- return err;
-}
-
-static int nl80211_rename_wiphy(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *rdev;
- int result;
-
- if (!info->attrs[NL80211_ATTR_WIPHY_NAME])
- return -EINVAL;
-
- rdev = cfg80211_get_dev_from_info(info);
- if (IS_ERR(rdev))
- return PTR_ERR(rdev);
-
- result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
-
- cfg80211_put_dev(rdev);
- return result;
-}
-static int nl80211_key_cmd(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err, del;
- struct net_device *dev;
- struct key_params params;
- int (*act)(struct wiphy *wiphy, struct net_device *dev,
- struct key_params *params);
-
- memset(¶ms, 0, sizeof(params));
-
- if (!info->attrs[NL80211_ATTR_KEY_TYPE])
- return -EINVAL;
-
- if (!info->attrs[NL80211_ATTR_KEY_CIPHER])
- return -EINVAL;
-
- params.key_type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
- if (params.key_type > NL80211_KEYTYPE_MAX)
- return -EINVAL;
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
-
- switch (info->genlhdr->cmd) {
- case NL80211_CMD_ADD_KEY:
- act = drv->ops->add_key;
- del = 0;
- break;
- case NL80211_CMD_DEL_KEY:
- act = drv->ops->del_key;
- del = 1;
- break;
- default:
- act = NULL;
- }
-
- if (!act) {
+ if (!drv->ops->del_virtual_intf) {
err = -EOPNOTSUPP;
goto out;
}
- if (info->attrs[NL80211_ATTR_KEY_DATA]) {
- params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
- params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
- }
-
- if (info->attrs[NL80211_ATTR_KEY_ID]) {
- params.key_id = nla_get_u32(info->attrs[NL80211_ATTR_KEY_ID]);
- } else {
- params.key_id = -1;
- }
-
- params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
-
- if (info->attrs[NL80211_ATTR_MAC]) {
- params.macaddress = nla_data(info->attrs[NL80211_ATTR_MAC]);
- } else {
- params.macaddress = NULL;
- }
-
rtnl_lock();
- err = act(&drv->wiphy, dev, ¶ms);
+ err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
rtnl_unlock();
out:
cfg80211_put_dev(drv);
- dev_put(dev);
return err;
}
static struct genl_ops nl80211_ops[] = {
{
- .cmd = NL80211_CMD_RENAME_WIPHY,
- .doit = nl80211_rename_wiphy,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_GET_CMDLIST,
- .doit = nl80211_get_cmdlist,
- .policy = nl80211_policy,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = NL80211_CMD_ADD_VIRTUAL_INTERFACE,
- .doit = nl80211_add_virt_intf,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_DEL_VIRTUAL_INTERFACE,
- .doit = nl80211_del_virt_intf,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_CHANGE_VIRTUAL_INTERFACE,
- .doit = nl80211_change_virt_intf,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_GET_WIPHYS,
- .doit = nl80211_get_wiphys,
+ .cmd = NL80211_CMD_GET_WIPHY,
+ .doit = nl80211_get_wiphy,
+ .dumpit = nl80211_dump_wiphy,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
},
{
- .cmd = NL80211_CMD_GET_INTERFACES,
- .doit = nl80211_get_intfs,
- .policy = nl80211_policy,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = NL80211_CMD_INITIATE_SCAN,
- .doit = nl80211_initiate_scan,
+ .cmd = NL80211_CMD_SET_WIPHY,
+ .doit = nl80211_set_wiphy,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
- .cmd = NL80211_CMD_GET_ASSOCIATION,
- .doit = nl80211_get_association,
+ .cmd = NL80211_CMD_GET_INTERFACE,
+ .doit = nl80211_get_interface,
+ .dumpit = nl80211_dump_interface,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
},
{
- .cmd = NL80211_CMD_ASSOCIATE,
- .doit = nl80211_associate,
+ .cmd = NL80211_CMD_SET_INTERFACE,
+ .doit = nl80211_set_interface,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
- .cmd = NL80211_CMD_DISASSOCIATE,
- .doit = nl80211_disassoc_deauth,
+ .cmd = NL80211_CMD_NEW_INTERFACE,
+ .doit = nl80211_new_interface,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
{
- .cmd = NL80211_CMD_DEAUTH,
- .doit = nl80211_disassoc_deauth,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_GET_AUTH_LIST,
- .doit = nl80211_get_auth_list,
- .policy = nl80211_policy,
- /* can be retrieved by unprivileged users */
- },
-/*
- {
- .cmd = NL80211_CMD_AP_SET_BEACON,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_AP_ADD_STA,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_AP_UPDATE_STA,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_AP_GET_STA_INFO,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_AP_SET_RATESETS,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
-*/
- {
- .cmd = NL80211_CMD_ADD_KEY,
- .doit = nl80211_key_cmd,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_DEL_KEY,
- .doit = nl80211_key_cmd,
+ .cmd = NL80211_CMD_DEL_INTERFACE,
+ .doit = nl80211_del_interface,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
};
-
-/* exported functions */
-
-void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, int flags, u8 cmd)
-{
- /* since there is no private header just add the generic one */
- return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
-}
-EXPORT_SYMBOL_GPL(nl80211hdr_put);
-
-void *nl80211msg_new(struct sk_buff **skb, u32 pid, u32 seq, int flags, u8 cmd)
-{
- void *hdr;
-
- *skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!*skb)
- return ERR_PTR(-ENOBUFS);
-
- hdr = nl80211hdr_put(*skb, pid, seq, flags, cmd);
- if (!hdr) {
- nlmsg_free(*skb);
- return ERR_PTR(-ENOBUFS);
- }
-
- return hdr;
-}
-EXPORT_SYMBOL_GPL(nl80211msg_new);
+/* multicast groups */
+static struct genl_multicast_group nl80211_config_mcgrp = {
+ .name = "config",
+};
/* notification functions */
void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
{
struct sk_buff *msg;
- void *hdr;
- hdr = nl80211msg_new(&msg, 0, 0, 0, NL80211_CMD_WIPHY_NEWNAME);
- if (IS_ERR(hdr))
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
return;
- NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->idx);
- NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&rdev->wiphy));
-
- genlmsg_end(msg, hdr);
- genlmsg_multicast(msg, 0, NL80211_GROUP_CONFIG, GFP_KERNEL);
-
- return;
+ if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
+ nlmsg_free(msg);
+ return;
+ }
- nla_put_failure:
- nlmsg_free(msg);
+ genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
}
/* initialisation/exit functions */
if (err)
goto err_out;
}
+
+ err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
+ if (err)
+ goto err_out;
+
return 0;
err_out:
genl_unregister_family(&nl80211_fam);
--- /dev/null
+/*
+ * Radiotap parser
+ *
+ * Copyright 2007 Andy Green <andy@warmcat.com>
+ */
+
+#include <net/cfg80211.h>
+#include <net/ieee80211_radiotap.h>
+#include <asm/unaligned.h>
+
+/* function prototypes and related defs are in include/net/cfg80211.h */
+
+/**
+ * ieee80211_radiotap_iterator_init - radiotap parser iterator initialization
+ * @iterator: radiotap_iterator to initialize
+ * @radiotap_header: radiotap header to parse
+ * @max_length: total length we can parse into (eg, whole packet length)
+ *
+ * Returns: 0 or a negative error code if there is a problem.
+ *
+ * This function initializes an opaque iterator struct which can then
+ * be passed to ieee80211_radiotap_iterator_next() to visit every radiotap
+ * argument which is present in the header. It knows about extended
+ * present headers and handles them.
+ *
+ * How to use:
+ * call __ieee80211_radiotap_iterator_init() to init a semi-opaque iterator
+ * struct ieee80211_radiotap_iterator (no need to init the struct beforehand)
+ * checking for a good 0 return code. Then loop calling
+ * __ieee80211_radiotap_iterator_next()... it returns either 0,
+ * -ENOENT if there are no more args to parse, or -EINVAL if there is a problem.
+ * The iterator's @this_arg member points to the start of the argument
+ * associated with the current argument index that is present, which can be
+ * found in the iterator's @this_arg_index member. This arg index corresponds
+ * to the IEEE80211_RADIOTAP_... defines.
+ *
+ * Radiotap header length:
+ * You can find the CPU-endian total radiotap header length in
+ * iterator->max_length after executing ieee80211_radiotap_iterator_init()
+ * successfully.
+ *
+ * Alignment Gotcha:
+ * You must take care when dereferencing iterator.this_arg
+ * for multibyte types... the pointer is not aligned. Use
+ * get_unaligned((type *)iterator.this_arg) to dereference
+ * iterator.this_arg for type "type" safely on all arches.
+ *
+ * Example code:
+ * See Documentation/networking/radiotap-headers.txt
+ */
+
+int ieee80211_radiotap_iterator_init(
+ struct ieee80211_radiotap_iterator *iterator,
+ struct ieee80211_radiotap_header *radiotap_header,
+ int max_length)
+{
+ /* Linux only supports version 0 radiotap format */
+ if (radiotap_header->it_version)
+ return -EINVAL;
+
+ /* sanity check for allowed length and radiotap length field */
+ if (max_length < le16_to_cpu(get_unaligned(&radiotap_header->it_len)))
+ return -EINVAL;
+
+ iterator->rtheader = radiotap_header;
+ iterator->max_length = le16_to_cpu(get_unaligned(
+ &radiotap_header->it_len));
+ iterator->arg_index = 0;
+ iterator->bitmap_shifter = le32_to_cpu(get_unaligned(
+ &radiotap_header->it_present));
+ iterator->arg = (u8 *)radiotap_header + sizeof(*radiotap_header);
+ iterator->this_arg = NULL;
+
+ /* find payload start allowing for extended bitmap(s) */
+
+ if (unlikely(iterator->bitmap_shifter & (1<<IEEE80211_RADIOTAP_EXT))) {
+ while (le32_to_cpu(get_unaligned((__le32 *)iterator->arg)) &
+ (1<<IEEE80211_RADIOTAP_EXT)) {
+ iterator->arg += sizeof(u32);
+
+ /*
+ * check for insanity where the present bitmaps
+ * keep claiming to extend up to or even beyond the
+ * stated radiotap header length
+ */
+
+ if (((ulong)iterator->arg -
+ (ulong)iterator->rtheader) > iterator->max_length)
+ return -EINVAL;
+ }
+
+ iterator->arg += sizeof(u32);
+
+ /*
+ * no need to check again for blowing past stated radiotap
+ * header length, because ieee80211_radiotap_iterator_next
+ * checks it before it is dereferenced
+ */
+ }
+
+ /* we are all initialized happily */
+
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_radiotap_iterator_init);
+
+
+/**
+ * ieee80211_radiotap_iterator_next - return next radiotap parser iterator arg
+ * @iterator: radiotap_iterator to move to next arg (if any)
+ *
+ * Returns: 0 if there is an argument to handle,
+ * -ENOENT if there are no more args or -EINVAL
+ * if there is something else wrong.
+ *
+ * This function provides the next radiotap arg index (IEEE80211_RADIOTAP_*)
+ * in @this_arg_index and sets @this_arg to point to the
+ * payload for the field. It takes care of alignment handling and extended
+ * present fields. @this_arg can be changed by the caller (eg,
+ * incremented to move inside a compound argument like
+ * IEEE80211_RADIOTAP_CHANNEL). The args pointed to are in
+ * little-endian format whatever the endianess of your CPU.
+ *
+ * Alignment Gotcha:
+ * You must take care when dereferencing iterator.this_arg
+ * for multibyte types... the pointer is not aligned. Use
+ * get_unaligned((type *)iterator.this_arg) to dereference
+ * iterator.this_arg for type "type" safely on all arches.
+ */
+
+int ieee80211_radiotap_iterator_next(
+ struct ieee80211_radiotap_iterator *iterator)
+{
+
+ /*
+ * small length lookup table for all radiotap types we heard of
+ * starting from b0 in the bitmap, so we can walk the payload
+ * area of the radiotap header
+ *
+ * There is a requirement to pad args, so that args
+ * of a given length must begin at a boundary of that length
+ * -- but note that compound args are allowed (eg, 2 x u16
+ * for IEEE80211_RADIOTAP_CHANNEL) so total arg length is not
+ * a reliable indicator of alignment requirement.
+ *
+ * upper nybble: content alignment for arg
+ * lower nybble: content length for arg
+ */
+
+ static const u8 rt_sizes[] = {
+ [IEEE80211_RADIOTAP_TSFT] = 0x88,
+ [IEEE80211_RADIOTAP_FLAGS] = 0x11,
+ [IEEE80211_RADIOTAP_RATE] = 0x11,
+ [IEEE80211_RADIOTAP_CHANNEL] = 0x24,
+ [IEEE80211_RADIOTAP_FHSS] = 0x22,
+ [IEEE80211_RADIOTAP_DBM_ANTSIGNAL] = 0x11,
+ [IEEE80211_RADIOTAP_DBM_ANTNOISE] = 0x11,
+ [IEEE80211_RADIOTAP_LOCK_QUALITY] = 0x22,
+ [IEEE80211_RADIOTAP_TX_ATTENUATION] = 0x22,
+ [IEEE80211_RADIOTAP_DB_TX_ATTENUATION] = 0x22,
+ [IEEE80211_RADIOTAP_DBM_TX_POWER] = 0x11,
+ [IEEE80211_RADIOTAP_ANTENNA] = 0x11,
+ [IEEE80211_RADIOTAP_DB_ANTSIGNAL] = 0x11,
+ [IEEE80211_RADIOTAP_DB_ANTNOISE] = 0x11,
+ [IEEE80211_RADIOTAP_RX_FLAGS] = 0x22,
+ [IEEE80211_RADIOTAP_TX_FLAGS] = 0x22,
+ [IEEE80211_RADIOTAP_RTS_RETRIES] = 0x11,
+ [IEEE80211_RADIOTAP_DATA_RETRIES] = 0x11,
+ /*
+ * add more here as they are defined in
+ * include/net/ieee80211_radiotap.h
+ */
+ };
+
+ /*
+ * for every radiotap entry we can at
+ * least skip (by knowing the length)...
+ */
+
+ while (iterator->arg_index < sizeof(rt_sizes)) {
+ int hit = 0;
+ int pad;
+
+ if (!(iterator->bitmap_shifter & 1))
+ goto next_entry; /* arg not present */
+
+ /*
+ * arg is present, account for alignment padding
+ * 8-bit args can be at any alignment
+ * 16-bit args must start on 16-bit boundary
+ * 32-bit args must start on 32-bit boundary
+ * 64-bit args must start on 64-bit boundary
+ *
+ * note that total arg size can differ from alignment of
+ * elements inside arg, so we use upper nybble of length
+ * table to base alignment on
+ *
+ * also note: these alignments are ** relative to the
+ * start of the radiotap header **. There is no guarantee
+ * that the radiotap header itself is aligned on any
+ * kind of boundary.
+ *
+ * the above is why get_unaligned() is used to dereference
+ * multibyte elements from the radiotap area
+ */
+
+ pad = (((ulong)iterator->arg) -
+ ((ulong)iterator->rtheader)) &
+ ((rt_sizes[iterator->arg_index] >> 4) - 1);
+
+ if (pad)
+ iterator->arg +=
+ (rt_sizes[iterator->arg_index] >> 4) - pad;
+
+ /*
+ * this is what we will return to user, but we need to
+ * move on first so next call has something fresh to test
+ */
+ iterator->this_arg_index = iterator->arg_index;
+ iterator->this_arg = iterator->arg;
+ hit = 1;
+
+ /* internally move on the size of this arg */
+ iterator->arg += rt_sizes[iterator->arg_index] & 0x0f;
+
+ /*
+ * check for insanity where we are given a bitmap that
+ * claims to have more arg content than the length of the
+ * radiotap section. We will normally end up equalling this
+ * max_length on the last arg, never exceeding it.
+ */
+
+ if (((ulong)iterator->arg - (ulong)iterator->rtheader) >
+ iterator->max_length)
+ return -EINVAL;
+
+ next_entry:
+ iterator->arg_index++;
+ if (unlikely((iterator->arg_index & 31) == 0)) {
+ /* completed current u32 bitmap */
+ if (iterator->bitmap_shifter & 1) {
+ /* b31 was set, there is more */
+ /* move to next u32 bitmap */
+ iterator->bitmap_shifter = le32_to_cpu(
+ get_unaligned(iterator->next_bitmap));
+ iterator->next_bitmap++;
+ } else
+ /* no more bitmaps: end */
+ iterator->arg_index = sizeof(rt_sizes);
+ } else /* just try the next bit */
+ iterator->bitmap_shifter >>= 1;
+
+ /* if we found a valid arg earlier, return it now */
+ if (hit)
+ return 0;
+ }
+
+ /* we don't know how to handle any more args, we're done */
+ return -ENOENT;
+}
+EXPORT_SYMBOL(ieee80211_radiotap_iterator_next);
addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
}
-static ssize_t _store_add_iface(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
- int res;
-
- if (len > IFNAMSIZ)
- return -EINVAL;
-
- if (!rdev->ops->add_virtual_intf)
- return -ENOSYS;
-
- rtnl_lock();
- res = rdev->ops->add_virtual_intf(&rdev->wiphy, (char*)buf,
- NL80211_IFTYPE_UNSPECIFIED);
- rtnl_unlock();
-
- return res ? res : len;
-}
-
-static ssize_t _store_remove_iface(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
- int res, ifidx;
- struct net_device *netdev;
-
- if (len > IFNAMSIZ)
- return -EINVAL;
-
- if (!rdev->ops->del_virtual_intf)
- return -ENOSYS;
-
- netdev = dev_get_by_name(buf);
- if (!netdev)
- return -ENODEV;
- ifidx = netdev->ifindex;
- dev_put(netdev);
-
- rtnl_lock();
- res = rdev->ops->del_virtual_intf(&rdev->wiphy, ifidx);
- rtnl_unlock();
-
- return res ? res : len;
-}
-
static struct device_attribute ieee80211_dev_attrs[] = {
__ATTR(index, S_IRUGO, _show_index, NULL),
__ATTR(macaddress, S_IRUGO, _show_permaddr, NULL),
- __ATTR(add_iface, S_IWUGO, NULL, _store_add_iface),
- __ATTR(remove_iface, S_IWUGO, NULL, _store_remove_iface),
{}
};
cfg80211_dev_free(rdev);
}
+#ifdef CONFIG_HOTPLUG
static int wiphy_uevent(struct device *dev, char **envp,
int num_envp, char *buf, int size)
{
/* TODO, we probably need stuff here */
return 0;
}
+#endif
struct class ieee80211_class = {
.name = "ieee80211",
+++ /dev/null
-/*
- * This file implement the Wireless Extensions APIs.
- *
- * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
- * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
- *
- * (As all part of the Linux kernel, this file is GPL)
- */
-
-/************************** DOCUMENTATION **************************/
-/*
- * API definition :
- * --------------
- * See <linux/wireless.h> for details of the APIs and the rest.
- *
- * History :
- * -------
- *
- * v1 - 5.12.01 - Jean II
- * o Created this file.
- *
- * v2 - 13.12.01 - Jean II
- * o Move /proc/net/wireless stuff from net/core/dev.c to here
- * o Make Wireless Extension IOCTLs go through here
- * o Added iw_handler handling ;-)
- * o Added standard ioctl description
- * o Initial dumb commit strategy based on orinoco.c
- *
- * v3 - 19.12.01 - Jean II
- * o Make sure we don't go out of standard_ioctl[] in ioctl_standard_call
- * o Add event dispatcher function
- * o Add event description
- * o Propagate events as rtnetlink IFLA_WIRELESS option
- * o Generate event on selected SET requests
- *
- * v4 - 18.04.02 - Jean II
- * o Fix stupid off by one in iw_ioctl_description : IW_ESSID_MAX_SIZE + 1
- *
- * v5 - 21.06.02 - Jean II
- * o Add IW_PRIV_TYPE_ADDR in priv_type_size (+cleanup)
- * o Reshuffle IW_HEADER_TYPE_XXX to map IW_PRIV_TYPE_XXX changes
- * o Add IWEVCUSTOM for driver specific event/scanning token
- * o Turn on WE_STRICT_WRITE by default + kernel warning
- * o Fix WE_STRICT_WRITE in ioctl_export_private() (32 => iw_num)
- * o Fix off-by-one in test (extra_size <= IFNAMSIZ)
- *
- * v6 - 9.01.03 - Jean II
- * o Add common spy support : iw_handler_set_spy(), wireless_spy_update()
- * o Add enhanced spy support : iw_handler_set_thrspy() and event.
- * o Add WIRELESS_EXT version display in /proc/net/wireless
- *
- * v6 - 18.06.04 - Jean II
- * o Change get_spydata() method for added safety
- * o Remove spy #ifdef, they are always on -> cleaner code
- * o Allow any size GET request if user specifies length > max
- * and if request has IW_DESCR_FLAG_NOMAX flag or is SIOCGIWPRIV
- * o Start migrating get_wireless_stats to struct iw_handler_def
- * o Add wmb() in iw_handler_set_spy() for non-coherent archs/cpus
- * Based on patch from Pavel Roskin <proski@gnu.org> :
- * o Fix kernel data leak to user space in private handler handling
- *
- * v7 - 18.3.05 - Jean II
- * o Remove (struct iw_point *)->pointer from events and streams
- * o Remove spy_offset from struct iw_handler_def
- * o Start deprecating dev->get_wireless_stats, output a warning
- * o If IW_QUAL_DBM is set, show dBm values in /proc/net/wireless
- * o Don't loose INVALID/DBM flags when clearing UPDATED flags (iwstats)
- *
- * v8 - 17.02.06 - Jean II
- * o RtNetlink requests support (SET/GET)
- *
- * v8b - 03.08.06 - Herbert Xu
- * o Fix Wireless Event locking issues.
- *
- * v9 - 14.3.06 - Jean II
- * o Change length in ESSID and NICK to strlen() instead of strlen()+1
- * o Make standard_ioctl_num and standard_event_num unsigned
- * o Remove (struct net_device *)->get_wireless_stats()
- *
- * v10 - 16.3.07 - Jean II
- * o Prevent leaking of kernel space in stream on 64 bits.
- */
-
-/***************************** INCLUDES *****************************/
-
-#include <linux/module.h>
-#include <linux/types.h> /* off_t */
-#include <linux/netdevice.h> /* struct ifreq, dev_get_by_name() */
-#include <linux/proc_fs.h>
-#include <linux/rtnetlink.h> /* rtnetlink stuff */
-#include <linux/seq_file.h>
-#include <linux/init.h> /* for __init */
-#include <linux/if_arp.h> /* ARPHRD_ETHER */
-#include <linux/etherdevice.h> /* compare_ether_addr */
-#include <linux/interrupt.h>
-
-#include <linux/wireless.h> /* Pretty obvious */
-#include <net/iw_handler.h> /* New driver API */
-#include <net/netlink.h>
-#include <net/wext.h>
-
-#include <asm/uaccess.h> /* copy_to_user() */
-
-/************************* GLOBAL VARIABLES *************************/
-/*
- * You should not use global variables, because of re-entrancy.
- * On our case, it's only const, so it's OK...
- */
-/*
- * Meta-data about all the standard Wireless Extension request we
- * know about.
- */
-static const struct iw_ioctl_description standard_ioctl[] = {
- [SIOCSIWCOMMIT - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_NULL,
- },
- [SIOCGIWNAME - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_CHAR,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWNWID - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- .flags = IW_DESCR_FLAG_EVENT,
- },
- [SIOCGIWNWID - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWFREQ - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_FREQ,
- .flags = IW_DESCR_FLAG_EVENT,
- },
- [SIOCGIWFREQ - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_FREQ,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWMODE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_UINT,
- .flags = IW_DESCR_FLAG_EVENT,
- },
- [SIOCGIWMODE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_UINT,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWSENS - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWSENS - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWRANGE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_NULL,
- },
- [SIOCGIWRANGE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = sizeof(struct iw_range),
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWPRIV - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_NULL,
- },
- [SIOCGIWPRIV - SIOCIWFIRST] = { /* (handled directly by us) */
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct iw_priv_args),
- .max_tokens = 16,
- .flags = IW_DESCR_FLAG_NOMAX,
- },
- [SIOCSIWSTATS - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_NULL,
- },
- [SIOCGIWSTATS - SIOCIWFIRST] = { /* (handled directly by us) */
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = sizeof(struct iw_statistics),
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWSPY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct sockaddr),
- .max_tokens = IW_MAX_SPY,
- },
- [SIOCGIWSPY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct sockaddr) +
- sizeof(struct iw_quality),
- .max_tokens = IW_MAX_SPY,
- },
- [SIOCSIWTHRSPY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct iw_thrspy),
- .min_tokens = 1,
- .max_tokens = 1,
- },
- [SIOCGIWTHRSPY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct iw_thrspy),
- .min_tokens = 1,
- .max_tokens = 1,
- },
- [SIOCSIWAP - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_ADDR,
- },
- [SIOCGIWAP - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_ADDR,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWMLME - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .min_tokens = sizeof(struct iw_mlme),
- .max_tokens = sizeof(struct iw_mlme),
- },
- [SIOCGIWAPLIST - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct sockaddr) +
- sizeof(struct iw_quality),
- .max_tokens = IW_MAX_AP,
- .flags = IW_DESCR_FLAG_NOMAX,
- },
- [SIOCSIWSCAN - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .min_tokens = 0,
- .max_tokens = sizeof(struct iw_scan_req),
- },
- [SIOCGIWSCAN - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_SCAN_MAX_DATA,
- .flags = IW_DESCR_FLAG_NOMAX,
- },
- [SIOCSIWESSID - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ESSID_MAX_SIZE,
- .flags = IW_DESCR_FLAG_EVENT,
- },
- [SIOCGIWESSID - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ESSID_MAX_SIZE,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWNICKN - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ESSID_MAX_SIZE,
- },
- [SIOCGIWNICKN - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ESSID_MAX_SIZE,
- },
- [SIOCSIWRATE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWRATE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWRTS - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWRTS - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWFRAG - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWFRAG - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWTXPOW - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWTXPOW - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWRETRY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWRETRY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWENCODE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ENCODING_TOKEN_MAX,
- .flags = IW_DESCR_FLAG_EVENT | IW_DESCR_FLAG_RESTRICT,
- },
- [SIOCGIWENCODE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ENCODING_TOKEN_MAX,
- .flags = IW_DESCR_FLAG_DUMP | IW_DESCR_FLAG_RESTRICT,
- },
- [SIOCSIWPOWER - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWPOWER - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWGENIE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_GENERIC_IE_MAX,
- },
- [SIOCGIWGENIE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_GENERIC_IE_MAX,
- },
- [SIOCSIWAUTH - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWAUTH - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWENCODEEXT - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .min_tokens = sizeof(struct iw_encode_ext),
- .max_tokens = sizeof(struct iw_encode_ext) +
- IW_ENCODING_TOKEN_MAX,
- },
- [SIOCGIWENCODEEXT - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .min_tokens = sizeof(struct iw_encode_ext),
- .max_tokens = sizeof(struct iw_encode_ext) +
- IW_ENCODING_TOKEN_MAX,
- },
- [SIOCSIWPMKSA - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .min_tokens = sizeof(struct iw_pmksa),
- .max_tokens = sizeof(struct iw_pmksa),
- },
-};
-static const unsigned standard_ioctl_num = ARRAY_SIZE(standard_ioctl);
-
-/*
- * Meta-data about all the additional standard Wireless Extension events
- * we know about.
- */
-static const struct iw_ioctl_description standard_event[] = {
- [IWEVTXDROP - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_ADDR,
- },
- [IWEVQUAL - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_QUAL,
- },
- [IWEVCUSTOM - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_CUSTOM_MAX,
- },
- [IWEVREGISTERED - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_ADDR,
- },
- [IWEVEXPIRED - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_ADDR,
- },
- [IWEVGENIE - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_GENERIC_IE_MAX,
- },
- [IWEVMICHAELMICFAILURE - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = sizeof(struct iw_michaelmicfailure),
- },
- [IWEVASSOCREQIE - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_GENERIC_IE_MAX,
- },
- [IWEVASSOCRESPIE - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_GENERIC_IE_MAX,
- },
- [IWEVPMKIDCAND - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = sizeof(struct iw_pmkid_cand),
- },
-};
-static const unsigned standard_event_num = ARRAY_SIZE(standard_event);
-
-/* Size (in bytes) of the various private data types */
-static const char iw_priv_type_size[] = {
- 0, /* IW_PRIV_TYPE_NONE */
- 1, /* IW_PRIV_TYPE_BYTE */
- 1, /* IW_PRIV_TYPE_CHAR */
- 0, /* Not defined */
- sizeof(__u32), /* IW_PRIV_TYPE_INT */
- sizeof(struct iw_freq), /* IW_PRIV_TYPE_FLOAT */
- sizeof(struct sockaddr), /* IW_PRIV_TYPE_ADDR */
- 0, /* Not defined */
-};
-
-/* Size (in bytes) of various events */
-static const int event_type_size[] = {
- IW_EV_LCP_LEN, /* IW_HEADER_TYPE_NULL */
- 0,
- IW_EV_CHAR_LEN, /* IW_HEADER_TYPE_CHAR */
- 0,
- IW_EV_UINT_LEN, /* IW_HEADER_TYPE_UINT */
- IW_EV_FREQ_LEN, /* IW_HEADER_TYPE_FREQ */
- IW_EV_ADDR_LEN, /* IW_HEADER_TYPE_ADDR */
- 0,
- IW_EV_POINT_LEN, /* Without variable payload */
- IW_EV_PARAM_LEN, /* IW_HEADER_TYPE_PARAM */
- IW_EV_QUAL_LEN, /* IW_HEADER_TYPE_QUAL */
-};
-
-/* Size (in bytes) of various events, as packed */
-static const int event_type_pk_size[] = {
- IW_EV_LCP_PK_LEN, /* IW_HEADER_TYPE_NULL */
- 0,
- IW_EV_CHAR_PK_LEN, /* IW_HEADER_TYPE_CHAR */
- 0,
- IW_EV_UINT_PK_LEN, /* IW_HEADER_TYPE_UINT */
- IW_EV_FREQ_PK_LEN, /* IW_HEADER_TYPE_FREQ */
- IW_EV_ADDR_PK_LEN, /* IW_HEADER_TYPE_ADDR */
- 0,
- IW_EV_POINT_PK_LEN, /* Without variable payload */
- IW_EV_PARAM_PK_LEN, /* IW_HEADER_TYPE_PARAM */
- IW_EV_QUAL_PK_LEN, /* IW_HEADER_TYPE_QUAL */
-};
-
-/************************ COMMON SUBROUTINES ************************/
-/*
- * Stuff that may be used in various place or doesn't fit in one
- * of the section below.
- */
-
-/* ---------------------------------------------------------------- */
-/*
- * Return the driver handler associated with a specific Wireless Extension.
- */
-static iw_handler get_handler(struct net_device *dev, unsigned int cmd)
-{
- /* Don't "optimise" the following variable, it will crash */
- unsigned int index; /* *MUST* be unsigned */
-
- /* Check if we have some wireless handlers defined */
- if (dev->wireless_handlers == NULL)
- return NULL;
-
- /* Try as a standard command */
- index = cmd - SIOCIWFIRST;
- if (index < dev->wireless_handlers->num_standard)
- return dev->wireless_handlers->standard[index];
-
- /* Try as a private command */
- index = cmd - SIOCIWFIRSTPRIV;
- if (index < dev->wireless_handlers->num_private)
- return dev->wireless_handlers->private[index];
-
- /* Not found */
- return NULL;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Get statistics out of the driver
- */
-static struct iw_statistics *get_wireless_stats(struct net_device *dev)
-{
- /* New location */
- if ((dev->wireless_handlers != NULL) &&
- (dev->wireless_handlers->get_wireless_stats != NULL))
- return dev->wireless_handlers->get_wireless_stats(dev);
-
- /* Not found */
- return NULL;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Call the commit handler in the driver
- * (if exist and if conditions are right)
- *
- * Note : our current commit strategy is currently pretty dumb,
- * but we will be able to improve on that...
- * The goal is to try to agreagate as many changes as possible
- * before doing the commit. Drivers that will define a commit handler
- * are usually those that need a reset after changing parameters, so
- * we want to minimise the number of reset.
- * A cool idea is to use a timer : at each "set" command, we re-set the
- * timer, when the timer eventually fires, we call the driver.
- * Hopefully, more on that later.
- *
- * Also, I'm waiting to see how many people will complain about the
- * netif_running(dev) test. I'm open on that one...
- * Hopefully, the driver will remember to do a commit in "open()" ;-)
- */
-static int call_commit_handler(struct net_device *dev)
-{
- if ((netif_running(dev)) &&
- (dev->wireless_handlers->standard[0] != NULL))
- /* Call the commit handler on the driver */
- return dev->wireless_handlers->standard[0](dev, NULL,
- NULL, NULL);
- else
- return 0; /* Command completed successfully */
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Calculate size of private arguments
- */
-static inline int get_priv_size(__u16 args)
-{
- int num = args & IW_PRIV_SIZE_MASK;
- int type = (args & IW_PRIV_TYPE_MASK) >> 12;
-
- return num * iw_priv_type_size[type];
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Re-calculate the size of private arguments
- */
-static inline int adjust_priv_size(__u16 args,
- union iwreq_data * wrqu)
-{
- int num = wrqu->data.length;
- int max = args & IW_PRIV_SIZE_MASK;
- int type = (args & IW_PRIV_TYPE_MASK) >> 12;
-
- /* Make sure the driver doesn't goof up */
- if (max < num)
- num = max;
-
- return num * iw_priv_type_size[type];
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Standard Wireless Handler : get wireless stats
- * Allow programatic access to /proc/net/wireless even if /proc
- * doesn't exist... Also more efficient...
- */
-static int iw_handler_get_iwstats(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
-{
- /* Get stats from the driver */
- struct iw_statistics *stats;
-
- stats = get_wireless_stats(dev);
- if (stats) {
- /* Copy statistics to extra */
- memcpy(extra, stats, sizeof(struct iw_statistics));
- wrqu->data.length = sizeof(struct iw_statistics);
-
- /* Check if we need to clear the updated flag */
- if (wrqu->data.flags != 0)
- stats->qual.updated &= ~IW_QUAL_ALL_UPDATED;
- return 0;
- } else
- return -EOPNOTSUPP;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Standard Wireless Handler : get iwpriv definitions
- * Export the driver private handler definition
- * They will be picked up by tools like iwpriv...
- */
-static int iw_handler_get_private(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
-{
- /* Check if the driver has something to export */
- if ((dev->wireless_handlers->num_private_args == 0) ||
- (dev->wireless_handlers->private_args == NULL))
- return -EOPNOTSUPP;
-
- /* Check if there is enough buffer up there */
- if (wrqu->data.length < dev->wireless_handlers->num_private_args) {
- /* User space can't know in advance how large the buffer
- * needs to be. Give it a hint, so that we can support
- * any size buffer we want somewhat efficiently... */
- wrqu->data.length = dev->wireless_handlers->num_private_args;
- return -E2BIG;
- }
-
- /* Set the number of available ioctls. */
- wrqu->data.length = dev->wireless_handlers->num_private_args;
-
- /* Copy structure to the user buffer. */
- memcpy(extra, dev->wireless_handlers->private_args,
- sizeof(struct iw_priv_args) * wrqu->data.length);
-
- return 0;
-}
-
-
-/******************** /proc/net/wireless SUPPORT ********************/
-/*
- * The /proc/net/wireless file is a human readable user-space interface
- * exporting various wireless specific statistics from the wireless devices.
- * This is the most popular part of the Wireless Extensions ;-)
- *
- * This interface is a pure clone of /proc/net/dev (in net/core/dev.c).
- * The content of the file is basically the content of "struct iw_statistics".
- */
-
-#ifdef CONFIG_PROC_FS
-
-/* ---------------------------------------------------------------- */
-/*
- * Print one entry (line) of /proc/net/wireless
- */
-static void wireless_seq_printf_stats(struct seq_file *seq,
- struct net_device *dev)
-{
- /* Get stats from the driver */
- struct iw_statistics *stats = get_wireless_stats(dev);
-
- if (stats) {
- seq_printf(seq, "%6s: %04x %3d%c %3d%c %3d%c %6d %6d %6d "
- "%6d %6d %6d\n",
- dev->name, stats->status, stats->qual.qual,
- stats->qual.updated & IW_QUAL_QUAL_UPDATED
- ? '.' : ' ',
- ((__s32) stats->qual.level) -
- ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0),
- stats->qual.updated & IW_QUAL_LEVEL_UPDATED
- ? '.' : ' ',
- ((__s32) stats->qual.noise) -
- ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0),
- stats->qual.updated & IW_QUAL_NOISE_UPDATED
- ? '.' : ' ',
- stats->discard.nwid, stats->discard.code,
- stats->discard.fragment, stats->discard.retries,
- stats->discard.misc, stats->miss.beacon);
- stats->qual.updated &= ~IW_QUAL_ALL_UPDATED;
- }
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Print info for /proc/net/wireless (print all entries)
- */
-static int wireless_seq_show(struct seq_file *seq, void *v)
-{
- if (v == SEQ_START_TOKEN)
- seq_printf(seq, "Inter-| sta-| Quality | Discarded "
- "packets | Missed | WE\n"
- " face | tus | link level noise | nwid "
- "crypt frag retry misc | beacon | %d\n",
- WIRELESS_EXT);
- else
- wireless_seq_printf_stats(seq, v);
- return 0;
-}
-
-static const struct seq_operations wireless_seq_ops = {
- .start = dev_seq_start,
- .next = dev_seq_next,
- .stop = dev_seq_stop,
- .show = wireless_seq_show,
-};
-
-static int wireless_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &wireless_seq_ops);
-}
-
-static const struct file_operations wireless_seq_fops = {
- .owner = THIS_MODULE,
- .open = wireless_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-int __init wext_proc_init(void)
-{
- /* Create /proc/net/wireless entry */
- if (!proc_net_fops_create("wireless", S_IRUGO, &wireless_seq_fops))
- return -ENOMEM;
-
- return 0;
-}
-#endif /* CONFIG_PROC_FS */
-
-/************************** IOCTL SUPPORT **************************/
-/*
- * The original user space API to configure all those Wireless Extensions
- * is through IOCTLs.
- * In there, we check if we need to call the new driver API (iw_handler)
- * or just call the driver ioctl handler.
- */
-
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a standard Wireless Extension handler.
- * We do various checks and also take care of moving data between
- * user space and kernel space.
- */
-static int ioctl_standard_call(struct net_device * dev,
- struct ifreq * ifr,
- unsigned int cmd,
- iw_handler handler)
-{
- struct iwreq * iwr = (struct iwreq *) ifr;
- const struct iw_ioctl_description * descr;
- struct iw_request_info info;
- int ret = -EINVAL;
-
- /* Get the description of the IOCTL */
- if ((cmd - SIOCIWFIRST) >= standard_ioctl_num)
- return -EOPNOTSUPP;
- descr = &(standard_ioctl[cmd - SIOCIWFIRST]);
-
- /* Prepare the call */
- info.cmd = cmd;
- info.flags = 0;
-
- /* Check if we have a pointer to user space data or not */
- if (descr->header_type != IW_HEADER_TYPE_POINT) {
-
- /* No extra arguments. Trivial to handle */
- ret = handler(dev, &info, &(iwr->u), NULL);
-
- /* Generate an event to notify listeners of the change */
- if ((descr->flags & IW_DESCR_FLAG_EVENT) &&
- ((ret == 0) || (ret == -EIWCOMMIT)))
- wireless_send_event(dev, cmd, &(iwr->u), NULL);
- } else {
- char * extra;
- int extra_size;
- int user_length = 0;
- int err;
- int essid_compat = 0;
-
- /* Calculate space needed by arguments. Always allocate
- * for max space. Easier, and won't last long... */
- extra_size = descr->max_tokens * descr->token_size;
-
- /* Check need for ESSID compatibility for WE < 21 */
- switch (cmd) {
- case SIOCSIWESSID:
- case SIOCGIWESSID:
- case SIOCSIWNICKN:
- case SIOCGIWNICKN:
- if (iwr->u.data.length == descr->max_tokens + 1)
- essid_compat = 1;
- else if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) {
- char essid[IW_ESSID_MAX_SIZE + 1];
-
- err = copy_from_user(essid, iwr->u.data.pointer,
- iwr->u.data.length *
- descr->token_size);
- if (err)
- return -EFAULT;
-
- if (essid[iwr->u.data.length - 1] == '\0')
- essid_compat = 1;
- }
- break;
- default:
- break;
- }
-
- iwr->u.data.length -= essid_compat;
-
- /* Check what user space is giving us */
- if (IW_IS_SET(cmd)) {
- /* Check NULL pointer */
- if ((iwr->u.data.pointer == NULL) &&
- (iwr->u.data.length != 0))
- return -EFAULT;
- /* Check if number of token fits within bounds */
- if (iwr->u.data.length > descr->max_tokens)
- return -E2BIG;
- if (iwr->u.data.length < descr->min_tokens)
- return -EINVAL;
- } else {
- /* Check NULL pointer */
- if (iwr->u.data.pointer == NULL)
- return -EFAULT;
- /* Save user space buffer size for checking */
- user_length = iwr->u.data.length;
-
- /* Don't check if user_length > max to allow forward
- * compatibility. The test user_length < min is
- * implied by the test at the end. */
-
- /* Support for very large requests */
- if ((descr->flags & IW_DESCR_FLAG_NOMAX) &&
- (user_length > descr->max_tokens)) {
- /* Allow userspace to GET more than max so
- * we can support any size GET requests.
- * There is still a limit : -ENOMEM. */
- extra_size = user_length * descr->token_size;
- /* Note : user_length is originally a __u16,
- * and token_size is controlled by us,
- * so extra_size won't get negative and
- * won't overflow... */
- }
- }
-
- /* Create the kernel buffer */
- /* kzalloc ensures NULL-termination for essid_compat */
- extra = kzalloc(extra_size, GFP_KERNEL);
- if (extra == NULL)
- return -ENOMEM;
-
- /* If it is a SET, get all the extra data in here */
- if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) {
- err = copy_from_user(extra, iwr->u.data.pointer,
- iwr->u.data.length *
- descr->token_size);
- if (err) {
- kfree(extra);
- return -EFAULT;
- }
- }
-
- /* Call the handler */
- ret = handler(dev, &info, &(iwr->u), extra);
-
- iwr->u.data.length += essid_compat;
-
- /* If we have something to return to the user */
- if (!ret && IW_IS_GET(cmd)) {
- /* Check if there is enough buffer up there */
- if (user_length < iwr->u.data.length) {
- kfree(extra);
- return -E2BIG;
- }
-
- err = copy_to_user(iwr->u.data.pointer, extra,
- iwr->u.data.length *
- descr->token_size);
- if (err)
- ret = -EFAULT;
- }
-
- /* Generate an event to notify listeners of the change */
- if ((descr->flags & IW_DESCR_FLAG_EVENT) &&
- ((ret == 0) || (ret == -EIWCOMMIT))) {
- if (descr->flags & IW_DESCR_FLAG_RESTRICT)
- /* If the event is restricted, don't
- * export the payload */
- wireless_send_event(dev, cmd, &(iwr->u), NULL);
- else
- wireless_send_event(dev, cmd, &(iwr->u),
- extra);
- }
-
- /* Cleanup - I told you it wasn't that long ;-) */
- kfree(extra);
- }
-
- /* Call commit handler if needed and defined */
- if (ret == -EIWCOMMIT)
- ret = call_commit_handler(dev);
-
- /* Here, we will generate the appropriate event if needed */
-
- return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a private Wireless Extension handler.
- * We do various checks and also take care of moving data between
- * user space and kernel space.
- * It's not as nice and slimline as the standard wrapper. The cause
- * is struct iw_priv_args, which was not really designed for the
- * job we are going here.
- *
- * IMPORTANT : This function prevent to set and get data on the same
- * IOCTL and enforce the SET/GET convention. Not doing it would be
- * far too hairy...
- * If you need to set and get data at the same time, please don't use
- * a iw_handler but process it in your ioctl handler (i.e. use the
- * old driver API).
- */
-static int ioctl_private_call(struct net_device *dev, struct ifreq *ifr,
- unsigned int cmd, iw_handler handler)
-{
- struct iwreq * iwr = (struct iwreq *) ifr;
- const struct iw_priv_args * descr = NULL;
- struct iw_request_info info;
- int extra_size = 0;
- int i;
- int ret = -EINVAL;
-
- /* Get the description of the IOCTL */
- for (i = 0; i < dev->wireless_handlers->num_private_args; i++)
- if (cmd == dev->wireless_handlers->private_args[i].cmd) {
- descr = &(dev->wireless_handlers->private_args[i]);
- break;
- }
-
- /* Compute the size of the set/get arguments */
- if (descr != NULL) {
- if (IW_IS_SET(cmd)) {
- int offset = 0; /* For sub-ioctls */
- /* Check for sub-ioctl handler */
- if (descr->name[0] == '\0')
- /* Reserve one int for sub-ioctl index */
- offset = sizeof(__u32);
-
- /* Size of set arguments */
- extra_size = get_priv_size(descr->set_args);
-
- /* Does it fits in iwr ? */
- if ((descr->set_args & IW_PRIV_SIZE_FIXED) &&
- ((extra_size + offset) <= IFNAMSIZ))
- extra_size = 0;
- } else {
- /* Size of get arguments */
- extra_size = get_priv_size(descr->get_args);
-
- /* Does it fits in iwr ? */
- if ((descr->get_args & IW_PRIV_SIZE_FIXED) &&
- (extra_size <= IFNAMSIZ))
- extra_size = 0;
- }
- }
-
- /* Prepare the call */
- info.cmd = cmd;
- info.flags = 0;
-
- /* Check if we have a pointer to user space data or not. */
- if (extra_size == 0) {
- /* No extra arguments. Trivial to handle */
- ret = handler(dev, &info, &(iwr->u), (char *) &(iwr->u));
- } else {
- char * extra;
- int err;
-
- /* Check what user space is giving us */
- if (IW_IS_SET(cmd)) {
- /* Check NULL pointer */
- if ((iwr->u.data.pointer == NULL) &&
- (iwr->u.data.length != 0))
- return -EFAULT;
-
- /* Does it fits within bounds ? */
- if (iwr->u.data.length > (descr->set_args &
- IW_PRIV_SIZE_MASK))
- return -E2BIG;
- } else if (iwr->u.data.pointer == NULL)
- return -EFAULT;
-
- /* Always allocate for max space. Easier, and won't last
- * long... */
- extra = kmalloc(extra_size, GFP_KERNEL);
- if (extra == NULL)
- return -ENOMEM;
-
- /* If it is a SET, get all the extra data in here */
- if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) {
- err = copy_from_user(extra, iwr->u.data.pointer,
- extra_size);
- if (err) {
- kfree(extra);
- return -EFAULT;
- }
- }
-
- /* Call the handler */
- ret = handler(dev, &info, &(iwr->u), extra);
-
- /* If we have something to return to the user */
- if (!ret && IW_IS_GET(cmd)) {
-
- /* Adjust for the actual length if it's variable,
- * avoid leaking kernel bits outside. */
- if (!(descr->get_args & IW_PRIV_SIZE_FIXED)) {
- extra_size = adjust_priv_size(descr->get_args,
- &(iwr->u));
- }
-
- err = copy_to_user(iwr->u.data.pointer, extra,
- extra_size);
- if (err)
- ret = -EFAULT;
- }
-
- /* Cleanup - I told you it wasn't that long ;-) */
- kfree(extra);
- }
-
-
- /* Call commit handler if needed and defined */
- if (ret == -EIWCOMMIT)
- ret = call_commit_handler(dev);
-
- return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Main IOCTl dispatcher.
- * Check the type of IOCTL and call the appropriate wrapper...
- */
-static int wireless_process_ioctl(struct ifreq *ifr, unsigned int cmd)
-{
- struct net_device *dev;
- iw_handler handler;
-
- /* Permissions are already checked in dev_ioctl() before calling us.
- * The copy_to/from_user() of ifr is also dealt with in there */
-
- /* Make sure the device exist */
- if ((dev = __dev_get_by_name(ifr->ifr_name)) == NULL)
- return -ENODEV;
-
- /* A bunch of special cases, then the generic case...
- * Note that 'cmd' is already filtered in dev_ioctl() with
- * (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) */
- if (cmd == SIOCGIWSTATS)
- return ioctl_standard_call(dev, ifr, cmd,
- &iw_handler_get_iwstats);
-
- if (cmd == SIOCGIWPRIV && dev->wireless_handlers)
- return ioctl_standard_call(dev, ifr, cmd,
- &iw_handler_get_private);
-
- /* Basic check */
- if (!netif_device_present(dev))
- return -ENODEV;
-
- /* New driver API : try to find the handler */
- handler = get_handler(dev, cmd);
- if (handler) {
- /* Standard and private are not the same */
- if (cmd < SIOCIWFIRSTPRIV)
- return ioctl_standard_call(dev, ifr, cmd, handler);
- else
- return ioctl_private_call(dev, ifr, cmd, handler);
- }
- /* Old driver API : call driver ioctl handler */
- if (dev->do_ioctl)
- return dev->do_ioctl(dev, ifr, cmd);
- return -EOPNOTSUPP;
-}
-
-/* entry point from dev ioctl */
-int wext_handle_ioctl(struct ifreq *ifr, unsigned int cmd,
- void __user *arg)
-{
- int ret;
-
- /* If command is `set a parameter', or
- * `get the encoding parameters', check if
- * the user has the right to do it */
- if ((IW_IS_SET(cmd) || cmd == SIOCGIWENCODE || cmd == SIOCGIWENCODEEXT)
- && !capable(CAP_NET_ADMIN))
- return -EPERM;
-
- dev_load(ifr->ifr_name);
- rtnl_lock();
- ret = wireless_process_ioctl(ifr, cmd);
- rtnl_unlock();
- if (IW_IS_GET(cmd) && copy_to_user(arg, ifr, sizeof(struct ifreq)))
- return -EFAULT;
- return ret;
-}
-
-/************************* EVENT PROCESSING *************************/
-/*
- * Process events generated by the wireless layer or the driver.
- * Most often, the event will be propagated through rtnetlink
- */
-
-/* ---------------------------------------------------------------- */
-/*
- * Locking...
- * ----------
- *
- * Thanks to Herbert Xu <herbert@gondor.apana.org.au> for fixing
- * the locking issue in here and implementing this code !
- *
- * The issue : wireless_send_event() is often called in interrupt context,
- * while the Netlink layer can never be called in interrupt context.
- * The fully formed RtNetlink events are queued, and then a tasklet is run
- * to feed those to Netlink.
- * The skb_queue is interrupt safe, and its lock is not held while calling
- * Netlink, so there is no possibility of dealock.
- * Jean II
- */
-
-static struct sk_buff_head wireless_nlevent_queue;
-
-static int __init wireless_nlevent_init(void)
-{
- skb_queue_head_init(&wireless_nlevent_queue);
- return 0;
-}
-
-subsys_initcall(wireless_nlevent_init);
-
-static void wireless_nlevent_process(unsigned long data)
-{
- struct sk_buff *skb;
-
- while ((skb = skb_dequeue(&wireless_nlevent_queue)))
- rtnl_notify(skb, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
-}
-
-static DECLARE_TASKLET(wireless_nlevent_tasklet, wireless_nlevent_process, 0);
-
-/* ---------------------------------------------------------------- */
-/*
- * Fill a rtnetlink message with our event data.
- * Note that we propage only the specified event and don't dump the
- * current wireless config. Dumping the wireless config is far too
- * expensive (for each parameter, the driver need to query the hardware).
- */
-static int rtnetlink_fill_iwinfo(struct sk_buff *skb, struct net_device *dev,
- int type, char *event, int event_len)
-{
- struct ifinfomsg *r;
- struct nlmsghdr *nlh;
- unsigned char *b = skb_tail_pointer(skb);
-
- nlh = NLMSG_PUT(skb, 0, 0, type, sizeof(*r));
- r = NLMSG_DATA(nlh);
- r->ifi_family = AF_UNSPEC;
- r->__ifi_pad = 0;
- r->ifi_type = dev->type;
- r->ifi_index = dev->ifindex;
- r->ifi_flags = dev_get_flags(dev);
- r->ifi_change = 0; /* Wireless changes don't affect those flags */
-
- /* Add the wireless events in the netlink packet */
- RTA_PUT(skb, IFLA_WIRELESS, event_len, event);
-
- nlh->nlmsg_len = skb_tail_pointer(skb) - b;
- return skb->len;
-
-nlmsg_failure:
-rtattr_failure:
- nlmsg_trim(skb, b);
- return -1;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Create and broadcast and send it on the standard rtnetlink socket
- * This is a pure clone rtmsg_ifinfo() in net/core/rtnetlink.c
- * Andrzej Krzysztofowicz mandated that I used a IFLA_XXX field
- * within a RTM_NEWLINK event.
- */
-static void rtmsg_iwinfo(struct net_device *dev, char *event, int event_len)
-{
- struct sk_buff *skb;
- int size = NLMSG_GOODSIZE;
-
- skb = alloc_skb(size, GFP_ATOMIC);
- if (!skb)
- return;
-
- if (rtnetlink_fill_iwinfo(skb, dev, RTM_NEWLINK,
- event, event_len) < 0) {
- kfree_skb(skb);
- return;
- }
- NETLINK_CB(skb).dst_group = RTNLGRP_LINK;
- skb_queue_tail(&wireless_nlevent_queue, skb);
- tasklet_schedule(&wireless_nlevent_tasklet);
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Main event dispatcher. Called from other parts and drivers.
- * Send the event on the appropriate channels.
- * May be called from interrupt context.
- */
-void wireless_send_event(struct net_device * dev,
- unsigned int cmd,
- union iwreq_data * wrqu,
- char * extra)
-{
- const struct iw_ioctl_description * descr = NULL;
- int extra_len = 0;
- struct iw_event *event; /* Mallocated whole event */
- int event_len; /* Its size */
- int hdr_len; /* Size of the event header */
- int wrqu_off = 0; /* Offset in wrqu */
- /* Don't "optimise" the following variable, it will crash */
- unsigned cmd_index; /* *MUST* be unsigned */
-
- /* Get the description of the Event */
- if (cmd <= SIOCIWLAST) {
- cmd_index = cmd - SIOCIWFIRST;
- if (cmd_index < standard_ioctl_num)
- descr = &(standard_ioctl[cmd_index]);
- } else {
- cmd_index = cmd - IWEVFIRST;
- if (cmd_index < standard_event_num)
- descr = &(standard_event[cmd_index]);
- }
- /* Don't accept unknown events */
- if (descr == NULL) {
- /* Note : we don't return an error to the driver, because
- * the driver would not know what to do about it. It can't
- * return an error to the user, because the event is not
- * initiated by a user request.
- * The best the driver could do is to log an error message.
- * We will do it ourselves instead...
- */
- printk(KERN_ERR "%s (WE) : Invalid/Unknown Wireless Event (0x%04X)\n",
- dev->name, cmd);
- return;
- }
-
- /* Check extra parameters and set extra_len */
- if (descr->header_type == IW_HEADER_TYPE_POINT) {
- /* Check if number of token fits within bounds */
- if (wrqu->data.length > descr->max_tokens) {
- printk(KERN_ERR "%s (WE) : Wireless Event too big (%d)\n", dev->name, wrqu->data.length);
- return;
- }
- if (wrqu->data.length < descr->min_tokens) {
- printk(KERN_ERR "%s (WE) : Wireless Event too small (%d)\n", dev->name, wrqu->data.length);
- return;
- }
- /* Calculate extra_len - extra is NULL for restricted events */
- if (extra != NULL)
- extra_len = wrqu->data.length * descr->token_size;
- /* Always at an offset in wrqu */
- wrqu_off = IW_EV_POINT_OFF;
- }
-
- /* Total length of the event */
- hdr_len = event_type_size[descr->header_type];
- event_len = hdr_len + extra_len;
-
- /* Create temporary buffer to hold the event */
- event = kmalloc(event_len, GFP_ATOMIC);
- if (event == NULL)
- return;
-
- /* Fill event */
- event->len = event_len;
- event->cmd = cmd;
- memcpy(&event->u, ((char *) wrqu) + wrqu_off, hdr_len - IW_EV_LCP_LEN);
- if (extra)
- memcpy(((char *) event) + hdr_len, extra, extra_len);
-
- /* Send via the RtNetlink event channel */
- rtmsg_iwinfo(dev, (char *) event, event_len);
-
- /* Cleanup */
- kfree(event);
-
- return; /* Always success, I guess ;-) */
-}
-EXPORT_SYMBOL(wireless_send_event);
-
-/********************** ENHANCED IWSPY SUPPORT **********************/
-/*
- * In the old days, the driver was handling spy support all by itself.
- * Now, the driver can delegate this task to Wireless Extensions.
- * It needs to use those standard spy iw_handler in struct iw_handler_def,
- * push data to us via wireless_spy_update() and include struct iw_spy_data
- * in its private part (and export it in net_device->wireless_data->spy_data).
- * One of the main advantage of centralising spy support here is that
- * it becomes much easier to improve and extend it without having to touch
- * the drivers. One example is the addition of the Spy-Threshold events.
- */
-
-/* ---------------------------------------------------------------- */
-/*
- * Return the pointer to the spy data in the driver.
- * Because this is called on the Rx path via wireless_spy_update(),
- * we want it to be efficient...
- */
-static inline struct iw_spy_data *get_spydata(struct net_device *dev)
-{
- /* This is the new way */
- if (dev->wireless_data)
- return dev->wireless_data->spy_data;
- return NULL;
-}
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : set Spy List
- */
-int iw_handler_set_spy(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct sockaddr * address = (struct sockaddr *) extra;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- /* Disable spy collection while we copy the addresses.
- * While we copy addresses, any call to wireless_spy_update()
- * will NOP. This is OK, as anyway the addresses are changing. */
- spydata->spy_number = 0;
-
- /* We want to operate without locking, because wireless_spy_update()
- * most likely will happen in the interrupt handler, and therefore
- * have its own locking constraints and needs performance.
- * The rtnl_lock() make sure we don't race with the other iw_handlers.
- * This make sure wireless_spy_update() "see" that the spy list
- * is temporarily disabled. */
- smp_wmb();
-
- /* Are there are addresses to copy? */
- if (wrqu->data.length > 0) {
- int i;
-
- /* Copy addresses */
- for (i = 0; i < wrqu->data.length; i++)
- memcpy(spydata->spy_address[i], address[i].sa_data,
- ETH_ALEN);
- /* Reset stats */
- memset(spydata->spy_stat, 0,
- sizeof(struct iw_quality) * IW_MAX_SPY);
- }
-
- /* Make sure above is updated before re-enabling */
- smp_wmb();
-
- /* Enable addresses */
- spydata->spy_number = wrqu->data.length;
-
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_set_spy);
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : get Spy List
- */
-int iw_handler_get_spy(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct sockaddr * address = (struct sockaddr *) extra;
- int i;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- wrqu->data.length = spydata->spy_number;
-
- /* Copy addresses. */
- for (i = 0; i < spydata->spy_number; i++) {
- memcpy(address[i].sa_data, spydata->spy_address[i], ETH_ALEN);
- address[i].sa_family = AF_UNIX;
- }
- /* Copy stats to the user buffer (just after). */
- if (spydata->spy_number > 0)
- memcpy(extra + (sizeof(struct sockaddr) *spydata->spy_number),
- spydata->spy_stat,
- sizeof(struct iw_quality) * spydata->spy_number);
- /* Reset updated flags. */
- for (i = 0; i < spydata->spy_number; i++)
- spydata->spy_stat[i].updated &= ~IW_QUAL_ALL_UPDATED;
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_get_spy);
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : set spy threshold
- */
-int iw_handler_set_thrspy(struct net_device * dev,
- struct iw_request_info *info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- /* Just do it */
- memcpy(&(spydata->spy_thr_low), &(threshold->low),
- 2 * sizeof(struct iw_quality));
-
- /* Clear flag */
- memset(spydata->spy_thr_under, '\0', sizeof(spydata->spy_thr_under));
-
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_set_thrspy);
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : get spy threshold
- */
-int iw_handler_get_thrspy(struct net_device * dev,
- struct iw_request_info *info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- /* Just do it */
- memcpy(&(threshold->low), &(spydata->spy_thr_low),
- 2 * sizeof(struct iw_quality));
-
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_get_thrspy);
-
-/*------------------------------------------------------------------*/
-/*
- * Prepare and send a Spy Threshold event
- */
-static void iw_send_thrspy_event(struct net_device * dev,
- struct iw_spy_data * spydata,
- unsigned char * address,
- struct iw_quality * wstats)
-{
- union iwreq_data wrqu;
- struct iw_thrspy threshold;
-
- /* Init */
- wrqu.data.length = 1;
- wrqu.data.flags = 0;
- /* Copy address */
- memcpy(threshold.addr.sa_data, address, ETH_ALEN);
- threshold.addr.sa_family = ARPHRD_ETHER;
- /* Copy stats */
- memcpy(&(threshold.qual), wstats, sizeof(struct iw_quality));
- /* Copy also thresholds */
- memcpy(&(threshold.low), &(spydata->spy_thr_low),
- 2 * sizeof(struct iw_quality));
-
- /* Send event to user space */
- wireless_send_event(dev, SIOCGIWTHRSPY, &wrqu, (char *) &threshold);
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Call for the driver to update the spy data.
- * For now, the spy data is a simple array. As the size of the array is
- * small, this is good enough. If we wanted to support larger number of
- * spy addresses, we should use something more efficient...
- */
-void wireless_spy_update(struct net_device * dev,
- unsigned char * address,
- struct iw_quality * wstats)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- int i;
- int match = -1;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return;
-
- /* Update all records that match */
- for (i = 0; i < spydata->spy_number; i++)
- if (!compare_ether_addr(address, spydata->spy_address[i])) {
- memcpy(&(spydata->spy_stat[i]), wstats,
- sizeof(struct iw_quality));
- match = i;
- }
-
- /* Generate an event if we cross the spy threshold.
- * To avoid event storms, we have a simple hysteresis : we generate
- * event only when we go under the low threshold or above the
- * high threshold. */
- if (match >= 0) {
- if (spydata->spy_thr_under[match]) {
- if (wstats->level > spydata->spy_thr_high.level) {
- spydata->spy_thr_under[match] = 0;
- iw_send_thrspy_event(dev, spydata,
- address, wstats);
- }
- } else {
- if (wstats->level < spydata->spy_thr_low.level) {
- spydata->spy_thr_under[match] = 1;
- iw_send_thrspy_event(dev, spydata,
- address, wstats);
- }
- }
- }
-}
-EXPORT_SYMBOL(wireless_spy_update);
projects / openwrt / staging / ynezz.git / commitdiff