--- /dev/null
+#
+# Copyright (C) 2007 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+# $Id: Makefile 7440 2007-06-02 02:22:01Z nbd $
+
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/kernel.mk
+
+PKG_NAME:=mac80211
+PKG_RELEASE:=1
+
+PKG_BUILD_DIR:=$(KERNEL_BUILD_DIR)/$(PKG_NAME)
+
+include $(INCLUDE_DIR)/package.mk
+
+define KernelPackage/mac80211
+ SUBMENU:=Wireless Drivers
+ TITLE:=DeviceScape 802.11 Wireless Networking Stack
+ DEPENDS:=@LINUX_2_6 +kmod-ieee80211
+ DESCRIPTION:=\
+ This package contains the DeviceScape 80211 wireless stack.
+ VERSION:=$(PKG_RELEASE)+$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)
+ 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_lowest rc80211_simple)
+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/* $(PKG_BUILD_DIR)/wireless/
+endef
+
+MAKE_OPTS:=-C "$(LINUX_DIR)" \
+ CROSS_COMPILE="$(TARGET_CROSS)" \
+ ARCH="$(LINUX_KARCH)" \
+ EXTRA_CFLAGS="$(BUILDFLAGS)"
+
+define Build/Compile
+ $(MAKE) $(MAKE_OPTS) SUBDIRS="$(PKG_BUILD_DIR)/wireless" modules
+ $(MAKE) $(MAKE_OPTS) SUBDIRS="$(PKG_BUILD_DIR)/mac80211" modules
+endef
+
+#define Build/InstallDev
+# mkdir -p $(STAGING_DIR)/usr/include/madwifi
+# $(CP) $(PKG_BUILD_DIR)/include $(STAGING_DIR)/usr/include/madwifi/
+# mkdir -p $(STAGING_DIR)/usr/include/madwifi/net80211
+# $(CP) $(PKG_BUILD_DIR)/net80211/*.h $(STAGING_DIR)/usr/include/madwifi/net80211/
+#endef
+
+#define Build/UninstallDev
+# rm -rf $(STAGING_DIR)/usr/include/madwifi
+#endef
+
+$(eval $(call KernelPackage,mac80211))
--- /dev/null
+config MAC80211
+ tristate "Generic IEEE 802.11 Networking Stack (mac80211)"
+ depends on EXPERIMENTAL
+ select CRYPTO
+ select CRYPTO_ECB
+ select CRYPTO_ARC4
+ select CRYPTO_AES
+ select CRC32
+ select WIRELESS_EXT
+ select CFG80211
+ select NET_SCH_FIFO
+ ---help---
+ This option enables the hardware independent IEEE 802.11
+ networking stack.
+
+config MAC80211_LEDS
+ bool "Enable LED triggers"
+ depends on MAC80211 && LEDS_TRIGGERS
+ ---help---
+ This option enables a few LED triggers for different
+ packet receive/transmit events.
+
+config MAC80211_DEBUGFS
+ bool "Export mac80211 internals in DebugFS"
+ depends on MAC80211 && DEBUG_FS
+ ---help---
+ Select this to see extensive information about
+ the internal state of mac80211 in debugfs.
+
+ Say N unless you know you need this.
+
+config MAC80211_DEBUG
+ bool "Enable debugging output"
+ depends on MAC80211
+ ---help---
+ This option will enable debug tracing output for the
+ ieee80211 network stack.
+
+ If you are not trying to debug or develop the ieee80211
+ subsystem, you most likely want to say N here.
+
+config MAC80211_VERBOSE_DEBUG
+ bool "Verbose debugging output"
+ depends on MAC80211_DEBUG
+
+config MAC80211_LOWTX_FRAME_DUMP
+ bool "Debug frame dumping"
+ depends on MAC80211_DEBUG
+ ---help---
+ Selecting this option will cause the stack to
+ print a message for each frame that is handed
+ to the lowlevel driver for transmission. This
+ message includes all MAC addresses and the
+ frame control field.
+
+ If unsure, say N and insert the debugging code
+ you require into the driver you are debugging.
+
+config TKIP_DEBUG
+ bool "TKIP debugging"
+ depends on MAC80211_DEBUG
+
+config MAC80211_DEBUG_COUNTERS
+ 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
+ ---help---
+ Say Y here if you intend to debug the IBSS code.
+
+config MAC80211_VERBOSE_PS_DEBUG
+ bool "Verbose powersave mode debugging"
+ depends on MAC80211_DEBUG
+ ---help---
+ Say Y here to print out verbose powersave
+ mode debug messages.
--- /dev/null
+obj-$(CONFIG_MAC80211) += mac80211.o rc80211_simple.o rc80211_lowest.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 := \
+ ieee80211.o \
+ ieee80211_ioctl.o \
+ sta_info.o \
+ wep.o \
+ wpa.o \
+ ieee80211_sta.o \
+ ieee80211_iface.o \
+ ieee80211_rate.o \
+ michael.o \
+ tkip.o \
+ aes_ccm.o \
+ wme.o \
+ ieee80211_cfg.o \
+ $(mac80211-objs-y)
--- /dev/null
+/*
+ * Copyright 2003-2004, Instant802 Networks, Inc.
+ * Copyright 2005-2006, 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.
+ */
+
+#include <linux/types.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <asm/scatterlist.h>
+
+#include <net/mac80211.h>
+#include "ieee80211_key.h"
+#include "aes_ccm.h"
+
+
+static void ieee80211_aes_encrypt(struct crypto_cipher *tfm,
+ const u8 pt[16], u8 ct[16])
+{
+ crypto_cipher_encrypt_one(tfm, ct, pt);
+}
+
+
+static inline void aes_ccm_prepare(struct crypto_cipher *tfm, u8 *b_0, u8 *aad,
+ u8 *b, u8 *s_0, u8 *a)
+{
+ int i;
+
+ ieee80211_aes_encrypt(tfm, b_0, b);
+
+ /* Extra Authenticate-only data (always two AES blocks) */
+ for (i = 0; i < AES_BLOCK_LEN; i++)
+ aad[i] ^= b[i];
+ ieee80211_aes_encrypt(tfm, aad, b);
+
+ aad += AES_BLOCK_LEN;
+
+ for (i = 0; i < AES_BLOCK_LEN; i++)
+ aad[i] ^= b[i];
+ ieee80211_aes_encrypt(tfm, aad, a);
+
+ /* Mask out bits from auth-only-b_0 */
+ b_0[0] &= 0x07;
+
+ /* S_0 is used to encrypt T (= MIC) */
+ b_0[14] = 0;
+ b_0[15] = 0;
+ ieee80211_aes_encrypt(tfm, b_0, s_0);
+}
+
+
+void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
+ u8 *b_0, u8 *aad, u8 *data, size_t data_len,
+ u8 *cdata, u8 *mic)
+{
+ int i, j, last_len, num_blocks;
+ u8 *pos, *cpos, *b, *s_0, *e;
+
+ b = scratch;
+ s_0 = scratch + AES_BLOCK_LEN;
+ e = scratch + 2 * AES_BLOCK_LEN;
+
+ num_blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN;
+ last_len = data_len % AES_BLOCK_LEN;
+ aes_ccm_prepare(tfm, b_0, aad, b, s_0, b);
+
+ /* Process payload blocks */
+ pos = data;
+ cpos = cdata;
+ for (j = 1; j <= num_blocks; j++) {
+ int blen = (j == num_blocks && last_len) ?
+ last_len : AES_BLOCK_LEN;
+
+ /* Authentication followed by encryption */
+ for (i = 0; i < blen; i++)
+ b[i] ^= pos[i];
+ ieee80211_aes_encrypt(tfm, b, b);
+
+ b_0[14] = (j >> 8) & 0xff;
+ b_0[15] = j & 0xff;
+ ieee80211_aes_encrypt(tfm, b_0, e);
+ for (i = 0; i < blen; i++)
+ *cpos++ = *pos++ ^ e[i];
+ }
+
+ for (i = 0; i < CCMP_MIC_LEN; i++)
+ mic[i] = b[i] ^ s_0[i];
+}
+
+
+int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
+ u8 *b_0, u8 *aad, u8 *cdata, size_t data_len,
+ u8 *mic, u8 *data)
+{
+ int i, j, last_len, num_blocks;
+ u8 *pos, *cpos, *b, *s_0, *a;
+
+ b = scratch;
+ s_0 = scratch + AES_BLOCK_LEN;
+ a = scratch + 2 * AES_BLOCK_LEN;
+
+ num_blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN;
+ last_len = data_len % AES_BLOCK_LEN;
+ aes_ccm_prepare(tfm, b_0, aad, b, s_0, a);
+
+ /* Process payload blocks */
+ cpos = cdata;
+ pos = data;
+ for (j = 1; j <= num_blocks; j++) {
+ int blen = (j == num_blocks && last_len) ?
+ last_len : AES_BLOCK_LEN;
+
+ /* Decryption followed by authentication */
+ b_0[14] = (j >> 8) & 0xff;
+ b_0[15] = j & 0xff;
+ ieee80211_aes_encrypt(tfm, b_0, b);
+ for (i = 0; i < blen; i++) {
+ *pos = *cpos++ ^ b[i];
+ a[i] ^= *pos++;
+ }
+
+ ieee80211_aes_encrypt(tfm, a, a);
+ }
+
+ for (i = 0; i < CCMP_MIC_LEN; i++) {
+ if ((mic[i] ^ s_0[i]) != a[i])
+ return -1;
+ }
+
+ return 0;
+}
+
+
+struct crypto_cipher * ieee80211_aes_key_setup_encrypt(const u8 key[])
+{
+ struct crypto_cipher *tfm;
+
+ tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
+ if (IS_ERR(tfm))
+ return NULL;
+
+ crypto_cipher_setkey(tfm, key, ALG_CCMP_KEY_LEN);
+
+ return tfm;
+}
+
+
+void ieee80211_aes_key_free(struct crypto_cipher *tfm)
+{
+ if (tfm)
+ crypto_free_cipher(tfm);
+}
--- /dev/null
+/*
+ * Copyright 2003-2004, Instant802 Networks, Inc.
+ * Copyright 2006, 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 AES_CCM_H
+#define AES_CCM_H
+
+#include <linux/crypto.h>
+
+#define AES_BLOCK_LEN 16
+
+struct crypto_cipher * ieee80211_aes_key_setup_encrypt(const u8 key[]);
+void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
+ u8 *b_0, u8 *aad, u8 *data, size_t data_len,
+ u8 *cdata, u8 *mic);
+int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
+ u8 *b_0, u8 *aad, u8 *cdata, size_t data_len,
+ u8 *mic, u8 *data);
+void ieee80211_aes_key_free(struct crypto_cipher *tfm);
+
+#endif /* AES_CCM_H */
--- /dev/null
+/*
+ * mac80211 debugfs for wireless PHYs
+ *
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * GPLv2
+ *
+ */
+
+#include <linux/debugfs.h>
+#include <linux/rtnetlink.h>
+#include "ieee80211_i.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 0;
+}
+
+static const char *ieee80211_mode_str(int mode)
+{
+ switch (mode) {
+ case MODE_IEEE80211A:
+ return "IEEE 802.11a";
+ case MODE_IEEE80211B:
+ return "IEEE 802.11b";
+ case MODE_IEEE80211G:
+ return "IEEE 802.11g";
+ case MODE_ATHEROS_TURBO:
+ return "Atheros Turbo (5 GHz)";
+ default:
+ return "UNKNOWN";
+ }
+}
+
+static ssize_t modes_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ struct ieee80211_hw_mode *mode;
+ char buf[150], *p = buf;
+
+ /* FIXME: locking! */
+ list_for_each_entry(mode, &local->modes_list, list) {
+ p += scnprintf(p, sizeof(buf)+buf-p,
+ "%s\n", ieee80211_mode_str(mode->mode));
+ }
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
+}
+
+static const struct file_operations modes_ops = {
+ .read = modes_read,
+ .open = mac80211_open_file_generic,
+};
+
+#define DEBUGFS_READ(name, buflen, fmt, value...) \
+static ssize_t name## _read(struct file *file, char __user *userbuf, \
+ size_t count, loff_t *ppos) \
+{ \
+ struct ieee80211_local *local = file->private_data; \
+ char buf[buflen]; \
+ int res; \
+ \
+ 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, \
+ 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;
+
+
+DEBUGFS_READONLY_FILE(channel, 20, "%d",
+ 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",
+ local->fragmentation_threshold);
+DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d",
+ local->short_retry_limit);
+DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
+ local->long_retry_limit);
+DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
+ local->total_ps_buffered);
+DEBUGFS_READONLY_FILE(mode, 20, "%s",
+ 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_READ(rate_ctrl_alg, 100, "%s",
+ local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>");
+
+static ssize_t rate_ctrl_alg_write(struct file *file, const char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ 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;
+}
+
+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)
+
+static ssize_t format_devstat_counter(struct ieee80211_local *local,
+ char __user *userbuf,
+ size_t count, loff_t *ppos,
+ int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
+ int buflen))
+{
+ struct ieee80211_low_level_stats stats;
+ char buf[20];
+ int res;
+
+ if (!local->ops->get_stats)
+ return -EOPNOTSUPP;
+
+ res = rtnl_lock_local(local);
+ if (res)
+ return res;
+
+ res = local->ops->get_stats(local_to_hw(local), &stats);
+ rtnl_unlock();
+ if (!res)
+ res = printvalue(&stats, buf, sizeof(buf));
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+
+#define DEBUGFS_DEVSTATS_FILE(name) \
+static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
+ char *buf, int buflen) \
+{ \
+ return scnprintf(buf, buflen, "%u\n", stats->name); \
+} \
+static ssize_t stats_ ##name## _read(struct file *file, \
+ char __user *userbuf, \
+ size_t count, loff_t *ppos) \
+{ \
+ return format_devstat_counter(file->private_data, \
+ userbuf, \
+ count, \
+ ppos, \
+ print_devstats_##name); \
+} \
+ \
+static const struct file_operations stats_ ##name## _ops = { \
+ .read = stats_ ##name## _read, \
+ .open = mac80211_open_file_generic, \
+};
+
+#define DEBUGFS_STATS_ADD(name) \
+ local->debugfs.stats.name = debugfs_create_file(#name, 0444, statsd,\
+ local, &stats_ ##name## _ops);
+
+#define DEBUGFS_STATS_DEL(name) \
+ debugfs_remove(local->debugfs.stats.name); \
+ local->debugfs.stats.name = NULL;
+
+DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u",
+ local->dot11TransmittedFragmentCount);
+DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u",
+ local->dot11MulticastTransmittedFrameCount);
+DEBUGFS_STATS_FILE(failed_count, 20, "%u",
+ local->dot11FailedCount);
+DEBUGFS_STATS_FILE(retry_count, 20, "%u",
+ local->dot11RetryCount);
+DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u",
+ local->dot11MultipleRetryCount);
+DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u",
+ local->dot11FrameDuplicateCount);
+DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u",
+ local->dot11ReceivedFragmentCount);
+DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u",
+ local->dot11MulticastReceivedFrameCount);
+DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u",
+ local->dot11TransmittedFrameCount);
+DEBUGFS_STATS_FILE(wep_undecryptable_count, 20, "%u",
+ local->dot11WEPUndecryptableCount);
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u",
+ local->tx_handlers_drop);
+DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u",
+ local->tx_handlers_queued);
+DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u",
+ local->tx_handlers_drop_unencrypted);
+DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u",
+ local->tx_handlers_drop_fragment);
+DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u",
+ local->tx_handlers_drop_wep);
+DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u",
+ local->tx_handlers_drop_not_assoc);
+DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u",
+ local->tx_handlers_drop_unauth_port);
+DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u",
+ local->rx_handlers_drop);
+DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u",
+ local->rx_handlers_queued);
+DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u",
+ local->rx_handlers_drop_nullfunc);
+DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u",
+ local->rx_handlers_drop_defrag);
+DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u",
+ local->rx_handlers_drop_short);
+DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u",
+ local->rx_handlers_drop_passive_scan);
+DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u",
+ local->tx_expand_skb_head);
+DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u",
+ local->tx_expand_skb_head_cloned);
+DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u",
+ local->rx_expand_skb_head);
+DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u",
+ local->rx_expand_skb_head2);
+DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u",
+ local->rx_handlers_fragments);
+DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u",
+ local->tx_status_drop);
+
+static ssize_t stats_wme_rx_queue_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ char buf[NUM_RX_DATA_QUEUES*15], *p = buf;
+ int i;
+
+ for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+ p += scnprintf(p, sizeof(buf)+buf-p,
+ "%u\n", local->wme_rx_queue[i]);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
+}
+
+static const struct file_operations stats_wme_rx_queue_ops = {
+ .read = stats_wme_rx_queue_read,
+ .open = mac80211_open_file_generic,
+};
+
+static ssize_t stats_wme_tx_queue_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ char buf[NUM_TX_DATA_QUEUES*15], *p = buf;
+ int i;
+
+ for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
+ p += scnprintf(p, sizeof(buf)+buf-p,
+ "%u\n", local->wme_tx_queue[i]);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
+}
+
+static const struct file_operations stats_wme_tx_queue_ops = {
+ .read = stats_wme_tx_queue_read,
+ .open = mac80211_open_file_generic,
+};
+#endif
+
+DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
+DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
+DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
+DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
+
+
+void debugfs_hw_add(struct ieee80211_local *local)
+{
+ struct dentry *phyd = local->hw.wiphy->debugfsdir;
+ struct dentry *statsd;
+
+ if (!phyd)
+ return;
+
+ local->debugfs.stations = debugfs_create_dir("stations", phyd);
+ local->debugfs.keys = debugfs_create_dir("keys", phyd);
+
+ 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(long_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);
+ local->debugfs.statistics = statsd;
+
+ /* if the dir failed, don't put all the other things into the root! */
+ if (!statsd)
+ return;
+
+ DEBUGFS_STATS_ADD(transmitted_fragment_count);
+ DEBUGFS_STATS_ADD(multicast_transmitted_frame_count);
+ DEBUGFS_STATS_ADD(failed_count);
+ DEBUGFS_STATS_ADD(retry_count);
+ DEBUGFS_STATS_ADD(multiple_retry_count);
+ DEBUGFS_STATS_ADD(frame_duplicate_count);
+ DEBUGFS_STATS_ADD(received_fragment_count);
+ DEBUGFS_STATS_ADD(multicast_received_frame_count);
+ DEBUGFS_STATS_ADD(transmitted_frame_count);
+ DEBUGFS_STATS_ADD(wep_undecryptable_count);
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+ DEBUGFS_STATS_ADD(tx_handlers_drop);
+ DEBUGFS_STATS_ADD(tx_handlers_queued);
+ DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted);
+ DEBUGFS_STATS_ADD(tx_handlers_drop_fragment);
+ DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
+ DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
+ DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
+ DEBUGFS_STATS_ADD(rx_handlers_drop);
+ DEBUGFS_STATS_ADD(rx_handlers_queued);
+ DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
+ DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
+ DEBUGFS_STATS_ADD(rx_handlers_drop_short);
+ DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan);
+ DEBUGFS_STATS_ADD(tx_expand_skb_head);
+ DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
+ DEBUGFS_STATS_ADD(rx_expand_skb_head);
+ DEBUGFS_STATS_ADD(rx_expand_skb_head2);
+ DEBUGFS_STATS_ADD(rx_handlers_fragments);
+ DEBUGFS_STATS_ADD(tx_status_drop);
+ DEBUGFS_STATS_ADD(wme_tx_queue);
+ DEBUGFS_STATS_ADD(wme_rx_queue);
+#endif
+ DEBUGFS_STATS_ADD(dot11ACKFailureCount);
+ DEBUGFS_STATS_ADD(dot11RTSFailureCount);
+ DEBUGFS_STATS_ADD(dot11FCSErrorCount);
+ DEBUGFS_STATS_ADD(dot11RTSSuccessCount);
+}
+
+void debugfs_hw_del(struct ieee80211_local *local)
+{
+ 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(long_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);
+ DEBUGFS_STATS_DEL(multicast_transmitted_frame_count);
+ DEBUGFS_STATS_DEL(failed_count);
+ DEBUGFS_STATS_DEL(retry_count);
+ DEBUGFS_STATS_DEL(multiple_retry_count);
+ DEBUGFS_STATS_DEL(frame_duplicate_count);
+ DEBUGFS_STATS_DEL(received_fragment_count);
+ DEBUGFS_STATS_DEL(multicast_received_frame_count);
+ DEBUGFS_STATS_DEL(transmitted_frame_count);
+ DEBUGFS_STATS_DEL(wep_undecryptable_count);
+ DEBUGFS_STATS_DEL(num_scans);
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+ DEBUGFS_STATS_DEL(tx_handlers_drop);
+ DEBUGFS_STATS_DEL(tx_handlers_queued);
+ DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted);
+ DEBUGFS_STATS_DEL(tx_handlers_drop_fragment);
+ DEBUGFS_STATS_DEL(tx_handlers_drop_wep);
+ DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc);
+ DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port);
+ DEBUGFS_STATS_DEL(rx_handlers_drop);
+ DEBUGFS_STATS_DEL(rx_handlers_queued);
+ DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc);
+ DEBUGFS_STATS_DEL(rx_handlers_drop_defrag);
+ DEBUGFS_STATS_DEL(rx_handlers_drop_short);
+ DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan);
+ DEBUGFS_STATS_DEL(tx_expand_skb_head);
+ DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned);
+ DEBUGFS_STATS_DEL(rx_expand_skb_head);
+ DEBUGFS_STATS_DEL(rx_expand_skb_head2);
+ DEBUGFS_STATS_DEL(rx_handlers_fragments);
+ DEBUGFS_STATS_DEL(tx_status_drop);
+ DEBUGFS_STATS_DEL(wme_tx_queue);
+ DEBUGFS_STATS_DEL(wme_rx_queue);
+#endif
+ DEBUGFS_STATS_DEL(dot11ACKFailureCount);
+ DEBUGFS_STATS_DEL(dot11RTSFailureCount);
+ DEBUGFS_STATS_DEL(dot11FCSErrorCount);
+ DEBUGFS_STATS_DEL(dot11RTSSuccessCount);
+
+ debugfs_remove(local->debugfs.statistics);
+ local->debugfs.statistics = NULL;
+ debugfs_remove(local->debugfs.stations);
+ local->debugfs.stations = NULL;
+ debugfs_remove(local->debugfs.keys);
+ local->debugfs.keys = NULL;
+}
--- /dev/null
+#ifndef __MAC80211_DEBUGFS_H
+#define __MAC80211_DEBUGFS_H
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+extern void debugfs_hw_add(struct ieee80211_local *local);
+extern void debugfs_hw_del(struct ieee80211_local *local);
+extern int mac80211_open_file_generic(struct inode *inode, struct file *file);
+#else
+static inline void debugfs_hw_add(struct ieee80211_local *local)
+{
+ return;
+}
+static inline void debugfs_hw_del(struct ieee80211_local *local) {}
+#endif
+
+#endif /* __MAC80211_DEBUGFS_H */
--- /dev/null
+/*
+ * Copyright 2003-2005 Devicescape Software, Inc.
+ * Copyright (c) 2006 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/kobject.h>
+#include "ieee80211_i.h"
+#include "ieee80211_key.h"
+#include "debugfs.h"
+#include "debugfs_key.h"
+
+#define KEY_READ(name, 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); \
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
+}
+#define KEY_READ_D(name) KEY_READ(name, 20, "%d\n")
+
+#define KEY_OPS(name) \
+static const struct file_operations key_ ##name## _ops = { \
+ .read = key_##name##_read, \
+ .open = mac80211_open_file_generic, \
+}
+
+#define KEY_FILE(name, format) \
+ 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);
+KEY_FILE(tx_rx_count, D);
+
+static ssize_t key_algorithm_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char *alg;
+ struct ieee80211_key *key = file->private_data;
+
+ switch (key->alg) {
+ case ALG_WEP:
+ alg = "WEP\n";
+ break;
+ case ALG_TKIP:
+ alg = "TKIP\n";
+ break;
+ case ALG_CCMP:
+ alg = "CCMP\n";
+ break;
+ default:
+ return 0;
+ }
+ return simple_read_from_buffer(userbuf, count, ppos, alg, strlen(alg));
+}
+KEY_OPS(algorithm);
+
+static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ const u8 *tpn;
+ char buf[20];
+ int len;
+ struct ieee80211_key *key = file->private_data;
+
+ switch (key->alg) {
+ case ALG_WEP:
+ len = scnprintf(buf, sizeof(buf), "\n");
+ case ALG_TKIP:
+ len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
+ key->u.tkip.iv32,
+ key->u.tkip.iv16);
+ 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]);
+ default:
+ return 0;
+ }
+ return simple_read_from_buffer(userbuf, count, ppos, buf, len);
+}
+KEY_OPS(tx_spec);
+
+static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_key *key = file->private_data;
+ char buf[14*NUM_RX_DATA_QUEUES+1], *p = buf;
+ int i, len;
+ const u8 *rpn;
+
+ switch (key->alg) {
+ case ALG_WEP:
+ len = scnprintf(buf, sizeof(buf), "\n");
+ case ALG_TKIP:
+ for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+ p += scnprintf(p, sizeof(buf)+buf-p,
+ "%08x %04x\n",
+ key->u.tkip.iv32_rx[i],
+ key->u.tkip.iv16_rx[i]);
+ len = p - buf;
+ case ALG_CCMP:
+ for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
+ rpn = key->u.ccmp.rx_pn[i];
+ p += scnprintf(p, sizeof(buf)+buf-p,
+ "%02x%02x%02x%02x%02x%02x\n",
+ rpn[0], rpn[1], rpn[2],
+ rpn[3], rpn[4], rpn[5]);
+ }
+ len = p - buf;
+ default:
+ return 0;
+ }
+ return simple_read_from_buffer(userbuf, count, ppos, buf, len);
+}
+KEY_OPS(rx_spec);
+
+static ssize_t key_replays_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_key *key = file->private_data;
+ char buf[20];
+ int len;
+
+ if (key->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);
+}
+KEY_OPS(replays);
+
+static ssize_t key_key_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_key *key = file->private_data;
+ int i, res, bufsize = 2*key->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]);
+ p += scnprintf(p, bufsize+buf-p, "\n");
+ res = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
+ kfree(buf);
+ return res;
+}
+KEY_OPS(key);
+
+#define DEBUGFS_ADD(name) \
+ key->debugfs.name = debugfs_create_file(#name, 0400,\
+ key->debugfs.dir, key, &key_##name##_ops);
+
+void ieee80211_debugfs_key_add(struct ieee80211_local *local,
+ struct ieee80211_key *key)
+{
+ char buf[20];
+
+ if (!local->debugfs.keys)
+ return;
+
+ sprintf(buf, "%d", key->keyidx);
+ key->debugfs.dir = debugfs_create_dir(buf,
+ local->debugfs.keys);
+
+ if (!key->debugfs.dir)
+ return;
+
+ DEBUGFS_ADD(keylen);
+ DEBUGFS_ADD(force_sw_encrypt);
+ DEBUGFS_ADD(keyidx);
+ DEBUGFS_ADD(hw_key_idx);
+ DEBUGFS_ADD(tx_rx_count);
+ DEBUGFS_ADD(algorithm);
+ DEBUGFS_ADD(tx_spec);
+ DEBUGFS_ADD(rx_spec);
+ DEBUGFS_ADD(replays);
+ DEBUGFS_ADD(key);
+};
+
+#define DEBUGFS_DEL(name) \
+ debugfs_remove(key->debugfs.name); key->debugfs.name = NULL;
+
+void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
+{
+ if (!key)
+ return;
+
+ DEBUGFS_DEL(keylen);
+ DEBUGFS_DEL(force_sw_encrypt);
+ DEBUGFS_DEL(keyidx);
+ DEBUGFS_DEL(hw_key_idx);
+ DEBUGFS_DEL(tx_rx_count);
+ DEBUGFS_DEL(algorithm);
+ DEBUGFS_DEL(tx_spec);
+ DEBUGFS_DEL(rx_spec);
+ DEBUGFS_DEL(replays);
+ DEBUGFS_DEL(key);
+
+ debugfs_remove(key->debugfs.stalink);
+ key->debugfs.stalink = NULL;
+ debugfs_remove(key->debugfs.dir);
+ key->debugfs.dir = NULL;
+}
+void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata)
+{
+ char buf[50];
+
+ if (!sdata->debugfsdir)
+ return;
+
+ sprintf(buf, "../keys/%d", sdata->default_key->keyidx);
+ sdata->debugfs.default_key =
+ debugfs_create_symlink("default_key", sdata->debugfsdir, buf);
+}
+void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata)
+{
+ if (!sdata)
+ return;
+
+ debugfs_remove(sdata->debugfs.default_key);
+ sdata->debugfs.default_key = NULL;
+}
+void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key,
+ struct sta_info *sta)
+{
+ char buf[50];
+
+ if (!key->debugfs.dir)
+ return;
+
+ sprintf(buf, "../sta/" MAC_FMT, MAC_ARG(sta->addr));
+ key->debugfs.stalink =
+ debugfs_create_symlink("station", key->debugfs.dir, buf);
+}
+
+void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
+ struct sta_info *sta)
+{
+ debugfs_remove(key->debugfs.stalink);
+ key->debugfs.stalink = NULL;
+}
--- /dev/null
+#ifndef __MAC80211_DEBUGFS_KEY_H
+#define __MAC80211_DEBUGFS_KEY_H
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+void ieee80211_debugfs_key_add(struct ieee80211_local *local,
+ struct ieee80211_key *key);
+void ieee80211_debugfs_key_remove(struct ieee80211_key *key);
+void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata);
+void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata);
+void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key,
+ struct sta_info *sta);
+void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
+ struct sta_info *sta);
+#else
+static inline void ieee80211_debugfs_key_add(struct ieee80211_local *local,
+ struct ieee80211_key *key)
+{}
+static inline void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
+{}
+static inline void ieee80211_debugfs_key_add_default(
+ struct ieee80211_sub_if_data *sdata)
+{}
+static inline void ieee80211_debugfs_key_remove_default(
+ struct ieee80211_sub_if_data *sdata)
+{}
+static inline void ieee80211_debugfs_key_sta_link(
+ struct ieee80211_key *key, struct sta_info *sta)
+{}
+static inline void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
+ struct sta_info *sta)
+{}
+#endif
+
+#endif /* __MAC80211_DEBUGFS_KEY_H */
--- /dev/null
+/*
+ * Copyright (c) 2006 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/device.h>
+#include <linux/if.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/rtnetlink.h>
+#include <linux/notifier.h>
+#include <net/mac80211.h>
+#include <net/cfg80211.h>
+#include "ieee80211_i.h"
+#include "ieee80211_rate.h"
+#include "debugfs.h"
+#include "debugfs_netdev.h"
+
+static ssize_t ieee80211_if_read(
+ struct ieee80211_sub_if_data *sdata,
+ char __user *userbuf,
+ size_t count, loff_t *ppos,
+ ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int))
+{
+ char buf[70];
+ ssize_t ret = -EINVAL;
+
+ read_lock(&dev_base_lock);
+ if (sdata->dev->reg_state == NETREG_REGISTERED) {
+ ret = (*format)(sdata, buf, sizeof(buf));
+ ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
+ }
+ read_unlock(&dev_base_lock);
+ return ret;
+}
+
+#define IEEE80211_IF_FMT(name, field, format_string) \
+static ssize_t ieee80211_if_fmt_##name( \
+ const struct ieee80211_sub_if_data *sdata, char *buf, \
+ int buflen) \
+{ \
+ return scnprintf(buf, buflen, format_string, sdata->field); \
+}
+#define IEEE80211_IF_FMT_DEC(name, field) \
+ IEEE80211_IF_FMT(name, field, "%d\n")
+#define IEEE80211_IF_FMT_HEX(name, field) \
+ IEEE80211_IF_FMT(name, field, "%#x\n")
+#define IEEE80211_IF_FMT_SIZE(name, field) \
+ IEEE80211_IF_FMT(name, field, "%zd\n")
+
+#define IEEE80211_IF_FMT_ATOMIC(name, field) \
+static ssize_t ieee80211_if_fmt_##name( \
+ const struct ieee80211_sub_if_data *sdata, \
+ char *buf, int buflen) \
+{ \
+ return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
+}
+
+#define IEEE80211_IF_FMT_MAC(name, field) \
+static ssize_t ieee80211_if_fmt_##name( \
+ const struct ieee80211_sub_if_data *sdata, char *buf, \
+ int buflen) \
+{ \
+ return scnprintf(buf, buflen, MAC_FMT "\n", MAC_ARG(sdata->field));\
+}
+
+#define __IEEE80211_IF_FILE(name) \
+static ssize_t ieee80211_if_read_##name(struct file *file, \
+ char __user *userbuf, \
+ size_t count, loff_t *ppos) \
+{ \
+ return ieee80211_if_read(file->private_data, \
+ userbuf, count, ppos, \
+ ieee80211_if_fmt_##name); \
+} \
+static const struct file_operations name##_ops = { \
+ .read = ieee80211_if_read_##name, \
+ .open = mac80211_open_file_generic, \
+}
+
+#define IEEE80211_IF_FILE(name, field, format) \
+ IEEE80211_IF_FMT_##format(name, field) \
+ __IEEE80211_IF_FILE(name)
+
+static struct ieee80211_elem_tspec _tspec = {
+ .nominal_msdu_size = 200,
+ .inactivity_interval = 40,
+ .mean_data_rate = 40000,
+ .min_phy_rate = 6000000,
+ .surplus_band_allow = 8192,
+ .medium_time = 30,
+};
+static u8 _dls_mac[ETH_ALEN];
+
+#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, &_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(_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(_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, _dls_mac, 0);
+ break;
+ case 2:
+ ieee80211_send_dls_teardown(sdata->dev, &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]; \
+ int res = scnprintf(buf, count, "%u\n", \
+ IEEE80211_TSINFO_## _name (_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; \
+ \
+ 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)) { \
+ struct ieee80211_sub_if_data *sdata = file->private_data;\
+ printk(KERN_ERR "%s: set value (%u) out of range " \
+ "[%u, %u]\n",sdata->dev->name,val,min_val,max_val);\
+ return -EINVAL; \
+ } \
+ SET_TSINFO_ ##_name (_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) \
+static ssize_t tspec_ ##name## _read(struct file *file, \
+ char __user *userbuf, \
+ size_t count, loff_t *ppos) \
+{ \
+ char buf[20]; \
+ int res = scnprintf(buf, count, "%u\n", _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; \
+ \
+ size = min(sizeof(buf) - 1, count); \
+ buf[size] = '\0'; \
+ if (copy_from_user(buf, userbuf, size)) \
+ return -EFAULT; \
+ \
+ _tspec.name = 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);
+DEBUGFS_TSPEC_FILE(max_msdu_size);
+DEBUGFS_TSPEC_FILE(min_service_interval);
+DEBUGFS_TSPEC_FILE(max_service_interval);
+DEBUGFS_TSPEC_FILE(inactivity_interval);
+DEBUGFS_TSPEC_FILE(suspension_interval);
+DEBUGFS_TSPEC_FILE(service_start_time);
+DEBUGFS_TSPEC_FILE(min_data_rate);
+DEBUGFS_TSPEC_FILE(mean_data_rate);
+DEBUGFS_TSPEC_FILE(peak_data_rate);
+DEBUGFS_TSPEC_FILE(burst_size);
+DEBUGFS_TSPEC_FILE(delay_bound);
+DEBUGFS_TSPEC_FILE(min_phy_rate);
+DEBUGFS_TSPEC_FILE(surplus_band_allow);
+DEBUGFS_TSPEC_FILE(medium_time);
+
+
+/* common attributes */
+IEEE80211_IF_FILE(channel_use, channel_use, DEC);
+IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
+IEEE80211_IF_FILE(eapol, eapol, DEC);
+IEEE80211_IF_FILE(ieee8021_x, ieee802_1x, DEC);
+
+/* STA/IBSS attributes */
+IEEE80211_IF_FILE(state, u.sta.state, DEC);
+IEEE80211_IF_FILE(bssid, u.sta.bssid, MAC);
+IEEE80211_IF_FILE(prev_bssid, u.sta.prev_bssid, MAC);
+IEEE80211_IF_FILE(ssid_len, u.sta.ssid_len, SIZE);
+IEEE80211_IF_FILE(aid, u.sta.aid, DEC);
+IEEE80211_IF_FILE(ap_capab, u.sta.ap_capab, HEX);
+IEEE80211_IF_FILE(capab, u.sta.capab, HEX);
+IEEE80211_IF_FILE(extra_ie_len, u.sta.extra_ie_len, SIZE);
+IEEE80211_IF_FILE(auth_tries, u.sta.auth_tries, DEC);
+IEEE80211_IF_FILE(assoc_tries, u.sta.assoc_tries, DEC);
+IEEE80211_IF_FILE(auth_algs, u.sta.auth_algs, HEX);
+IEEE80211_IF_FILE(auth_alg, u.sta.auth_alg, DEC);
+IEEE80211_IF_FILE(auth_transaction, u.sta.auth_transaction, DEC);
+
+static ssize_t ieee80211_if_fmt_flags(
+ 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" : "");
+}
+__IEEE80211_IF_FILE(flags);
+
+/* AP attributes */
+IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
+IEEE80211_IF_FILE(dtim_period, u.ap.dtim_period, DEC);
+IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
+IEEE80211_IF_FILE(num_beacons, u.ap.num_beacons, DEC);
+IEEE80211_IF_FILE(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC);
+IEEE80211_IF_FILE(max_ratectrl_rateidx, u.ap.max_ratectrl_rateidx, DEC);
+
+static ssize_t ieee80211_if_fmt_num_buffered_multicast(
+ const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
+{
+ return scnprintf(buf, buflen, "%u\n",
+ skb_queue_len(&sdata->u.ap.ps_bc_buf));
+}
+__IEEE80211_IF_FILE(num_buffered_multicast);
+
+static ssize_t ieee80211_if_fmt_beacon_head_len(
+ const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
+{
+ if (sdata->u.ap.beacon_head)
+ return scnprintf(buf, buflen, "%d\n",
+ sdata->u.ap.beacon_head_len);
+ return scnprintf(buf, buflen, "\n");
+}
+__IEEE80211_IF_FILE(beacon_head_len);
+
+static ssize_t ieee80211_if_fmt_beacon_tail_len(
+ const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
+{
+ if (sdata->u.ap.beacon_tail)
+ return scnprintf(buf, buflen, "%d\n",
+ sdata->u.ap.beacon_tail_len);
+ return scnprintf(buf, buflen, "\n");
+}
+__IEEE80211_IF_FILE(beacon_tail_len);
+
+/* 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(ieee8021_x, sta);
+ DEBUGFS_ADD(state, sta);
+ DEBUGFS_ADD(bssid, sta);
+ DEBUGFS_ADD(prev_bssid, sta);
+ DEBUGFS_ADD(ssid_len, sta);
+ DEBUGFS_ADD(aid, sta);
+ DEBUGFS_ADD(ap_capab, sta);
+ DEBUGFS_ADD(capab, sta);
+ DEBUGFS_ADD(extra_ie_len, sta);
+ DEBUGFS_ADD(auth_tries, sta);
+ DEBUGFS_ADD(assoc_tries, sta);
+ DEBUGFS_ADD(auth_algs, 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(channel_use, ap);
+ DEBUGFS_ADD(drop_unencrypted, ap);
+ DEBUGFS_ADD(eapol, ap);
+ DEBUGFS_ADD(ieee8021_x, ap);
+ DEBUGFS_ADD(num_sta_ps, ap);
+ DEBUGFS_ADD(dtim_period, ap);
+ DEBUGFS_ADD(dtim_count, ap);
+ DEBUGFS_ADD(num_beacons, ap);
+ DEBUGFS_ADD(force_unicast_rateidx, ap);
+ DEBUGFS_ADD(max_ratectrl_rateidx, ap);
+ DEBUGFS_ADD(num_buffered_multicast, ap);
+ DEBUGFS_ADD(beacon_head_len, ap);
+ DEBUGFS_ADD(beacon_tail_len, ap);
+}
+
+static void add_wds_files(struct ieee80211_sub_if_data *sdata)
+{
+ DEBUGFS_ADD(channel_use, wds);
+ DEBUGFS_ADD(drop_unencrypted, wds);
+ DEBUGFS_ADD(eapol, wds);
+ DEBUGFS_ADD(ieee8021_x, wds);
+ DEBUGFS_ADD(peer, wds);
+}
+
+static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
+{
+ DEBUGFS_ADD(channel_use, vlan);
+ 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)
+{
+ if (!sdata->debugfsdir)
+ return;
+
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ add_sta_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_AP:
+ add_ap_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_WDS:
+ add_wds_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ add_monitor_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_VLAN:
+ add_vlan_files(sdata);
+ break;
+ default:
+ break;
+ }
+}
+
+#define DEBUGFS_DEL(name, type) \
+ do { \
+ debugfs_remove(sdata->debugfs.type.name); \
+ sdata->debugfs.type.name = NULL; \
+ } while (0)
+
+static void del_sta_files(struct ieee80211_sub_if_data *sdata)
+{
+ DEBUGFS_DEL(channel_use, sta);
+ DEBUGFS_DEL(drop_unencrypted, sta);
+ DEBUGFS_DEL(eapol, sta);
+ DEBUGFS_DEL(ieee8021_x, sta);
+ DEBUGFS_DEL(state, sta);
+ DEBUGFS_DEL(bssid, sta);
+ DEBUGFS_DEL(prev_bssid, sta);
+ DEBUGFS_DEL(ssid_len, sta);
+ DEBUGFS_DEL(aid, sta);
+ DEBUGFS_DEL(ap_capab, sta);
+ DEBUGFS_DEL(capab, sta);
+ DEBUGFS_DEL(extra_ie_len, sta);
+ DEBUGFS_DEL(auth_tries, sta);
+ DEBUGFS_DEL(assoc_tries, sta);
+ DEBUGFS_DEL(auth_algs, sta);
+ 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(channel_use, ap);
+ DEBUGFS_DEL(drop_unencrypted, ap);
+ DEBUGFS_DEL(eapol, ap);
+ DEBUGFS_DEL(ieee8021_x, ap);
+ DEBUGFS_DEL(num_sta_ps, ap);
+ DEBUGFS_DEL(dtim_period, ap);
+ DEBUGFS_DEL(dtim_count, ap);
+ DEBUGFS_DEL(num_beacons, ap);
+ DEBUGFS_DEL(force_unicast_rateidx, ap);
+ DEBUGFS_DEL(max_ratectrl_rateidx, ap);
+ DEBUGFS_DEL(num_buffered_multicast, ap);
+ DEBUGFS_DEL(beacon_head_len, ap);
+ DEBUGFS_DEL(beacon_tail_len, ap);
+}
+
+static void del_wds_files(struct ieee80211_sub_if_data *sdata)
+{
+ DEBUGFS_DEL(channel_use, wds);
+ DEBUGFS_DEL(drop_unencrypted, wds);
+ DEBUGFS_DEL(eapol, wds);
+ DEBUGFS_DEL(ieee8021_x, wds);
+ DEBUGFS_DEL(peer, wds);
+}
+
+static void del_vlan_files(struct ieee80211_sub_if_data *sdata)
+{
+ DEBUGFS_DEL(channel_use, vlan);
+ 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)
+{
+ if (!sdata->debugfsdir)
+ return;
+
+ switch (type) {
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ del_sta_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_AP:
+ del_ap_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_WDS:
+ del_wds_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ del_monitor_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_VLAN:
+ del_vlan_files(sdata);
+ break;
+ default:
+ break;
+ }
+}
+
+static int notif_registered;
+
+void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
+{
+ char buf[10+IFNAMSIZ];
+
+ if (!notif_registered)
+ return;
+
+ sprintf(buf, "netdev:%s", sdata->dev->name);
+ sdata->debugfsdir = debugfs_create_dir(buf,
+ sdata->local->hw.wiphy->debugfsdir);
+}
+
+void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
+{
+ del_files(sdata, sdata->type);
+ debugfs_remove(sdata->debugfsdir);
+ sdata->debugfsdir = NULL;
+}
+
+void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
+ int oldtype)
+{
+ del_files(sdata, oldtype);
+ add_files(sdata);
+}
+
+static int netdev_notify(struct notifier_block * nb,
+ unsigned long state,
+ void *ndev)
+{
+ struct net_device *dev = ndev;
+ char buf[10+IFNAMSIZ];
+
+ if (state != NETDEV_CHANGENAME)
+ return 0;
+
+ if (!dev->ieee80211_ptr || !dev->ieee80211_ptr->wiphy)
+ 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);
+ */
+
+ return 0;
+}
+
+static struct notifier_block mac80211_debugfs_netdev_notifier = {
+ .notifier_call = netdev_notify,
+};
+
+void ieee80211_debugfs_netdev_init(void)
+{
+ int err;
+
+ err = register_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
+ if (err) {
+ printk(KERN_ERR
+ "mac80211: failed to install netdev notifier,"
+ " disabling per-netdev debugfs!\n");
+ } else
+ notif_registered = 1;
+}
+
+void ieee80211_debugfs_netdev_exit(void)
+{
+ unregister_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
+ notif_registered = 0;
+}
--- /dev/null
+/* routines exported for debugfs handling */
+
+#ifndef __IEEE80211_DEBUGFS_NETDEV_H
+#define __IEEE80211_DEBUGFS_NETDEV_H
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata);
+void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata);
+void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
+ int oldtype);
+void ieee80211_debugfs_netdev_init(void);
+void ieee80211_debugfs_netdev_exit(void);
+#else
+static inline void ieee80211_debugfs_add_netdev(
+ struct ieee80211_sub_if_data *sdata)
+{}
+static inline void ieee80211_debugfs_remove_netdev(
+ struct ieee80211_sub_if_data *sdata)
+{}
+static inline void ieee80211_debugfs_change_if_type(
+ struct ieee80211_sub_if_data *sdata, int oldtype)
+{}
+static inline void ieee80211_debugfs_netdev_init(void)
+{}
+
+static inline void ieee80211_debugfs_netdev_exit(void)
+{}
+#endif
+
+#endif /* __IEEE80211_DEBUGFS_NETDEV_H */
--- /dev/null
+/*
+ * Copyright 2003-2005 Devicescape Software, Inc.
+ * Copyright (c) 2006 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/debugfs.h>
+#include <linux/ieee80211.h>
+#include "ieee80211_i.h"
+#include "debugfs.h"
+#include "debugfs_sta.h"
+#include "sta_info.h"
+
+/* sta attributtes */
+
+#define STA_READ(name, buflen, field, format_string) \
+static ssize_t sta_ ##name## _read(struct file *file, \
+ char __user *userbuf, \
+ size_t count, loff_t *ppos) \
+{ \
+ int res; \
+ struct sta_info *sta = file->private_data; \
+ char buf[buflen]; \
+ res = scnprintf(buf, buflen, format_string, sta->field); \
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
+}
+#define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n")
+#define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n")
+#define STA_READ_LU(name, field) STA_READ(name, 20, field, "%lu\n")
+#define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n")
+
+#define STA_READ_RATE(name, field) \
+static ssize_t sta_##name##_read(struct file *file, \
+ char __user *userbuf, \
+ size_t count, loff_t *ppos) \
+{ \
+ struct sta_info *sta = file->private_data; \
+ struct ieee80211_local *local = wdev_priv(sta->dev->ieee80211_ptr);\
+ struct ieee80211_hw_mode *mode = local->oper_hw_mode; \
+ char buf[20]; \
+ int res = scnprintf(buf, sizeof(buf), "%d\n", \
+ (sta->field >= 0 && \
+ sta->field < mode->num_rates) ? \
+ mode->rates[sta->field].rate : -1); \
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
+}
+
+#define STA_OPS(name) \
+static const struct file_operations sta_ ##name## _ops = { \
+ .read = sta_##name##_read, \
+ .open = mac80211_open_file_generic, \
+}
+
+#define STA_FILE(name, field, format) \
+ STA_READ_##format(name, field) \
+ 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);
+STA_FILE(tx_bytes, tx_bytes, LU);
+STA_FILE(rx_duplicates, num_duplicates, LU);
+STA_FILE(rx_fragments, rx_fragments, LU);
+STA_FILE(rx_dropped, rx_dropped, LU);
+STA_FILE(tx_fragments, tx_fragments, LU);
+STA_FILE(tx_filtered, tx_filtered_count, LU);
+STA_FILE(txrate, txrate, RATE);
+STA_FILE(last_txrate, last_txrate, RATE);
+STA_FILE(tx_retry_failed, tx_retry_failed, LU);
+STA_FILE(tx_retry_count, tx_retry_count, LU);
+STA_FILE(last_rssi, last_rssi, D);
+STA_FILE(last_signal, last_signal, D);
+STA_FILE(last_noise, last_noise, D);
+STA_FILE(channel_use, channel_use, D);
+STA_FILE(wep_weak_iv_count, wep_weak_iv_count, D);
+
+static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ 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",
+ 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_TIM ? "TIM\n" : "",
+ sta->flags & WLAN_STA_PERM ? "PERM\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);
+}
+STA_OPS(flags);
+
+static ssize_t sta_num_ps_buf_frames_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[20];
+ struct sta_info *sta = file->private_data;
+ int res = scnprintf(buf, sizeof(buf), "%u\n",
+ skb_queue_len(&sta->ps_tx_buf));
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+STA_OPS(num_ps_buf_frames);
+
+static ssize_t sta_last_ack_rssi_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[100];
+ struct sta_info *sta = file->private_data;
+ int res = scnprintf(buf, sizeof(buf), "%d %d %d\n",
+ sta->last_ack_rssi[0],
+ sta->last_ack_rssi[1],
+ sta->last_ack_rssi[2]);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+STA_OPS(last_ack_rssi);
+
+static ssize_t sta_last_ack_ms_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[20];
+ struct sta_info *sta = file->private_data;
+ int res = scnprintf(buf, sizeof(buf), "%d\n",
+ sta->last_ack ?
+ jiffies_to_msecs(jiffies - sta->last_ack) : -1);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+STA_OPS(last_ack_ms);
+
+static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[20];
+ struct sta_info *sta = file->private_data;
+ int res = scnprintf(buf, sizeof(buf), "%d\n",
+ jiffies_to_msecs(jiffies - sta->last_rx));
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+STA_OPS(inactive_ms);
+
+static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
+ int i;
+ struct sta_info *sta = file->private_data;
+ for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+ p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
+ sta->last_seq_ctrl[i]);
+ p += scnprintf(p, sizeof(buf)+buf-p, "\n");
+ return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
+}
+STA_OPS(last_seq_ctrl);
+
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+static ssize_t sta_wme_rx_queue_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
+ int i;
+ struct sta_info *sta = file->private_data;
+ for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+ p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
+ sta->wme_rx_queue[i]);
+ p += scnprintf(p, sizeof(buf)+buf-p, "\n");
+ return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
+}
+STA_OPS(wme_rx_queue);
+
+static ssize_t sta_wme_tx_queue_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[15*NUM_TX_DATA_QUEUES], *p = buf;
+ int i;
+ struct sta_info *sta = file->private_data;
+ for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
+ p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
+ sta->wme_tx_queue[i]);
+ p += scnprintf(p, sizeof(buf)+buf-p, "\n");
+ return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
+}
+STA_OPS(wme_tx_queue);
+#endif
+
+#define DEBUGFS_ADD(name) \
+ sta->debugfs.name = debugfs_create_file(#name, 0444, \
+ sta->debugfs.dir, sta, &sta_ ##name## _ops);
+
+#define DEBUGFS_DEL(name) \
+ debugfs_remove(sta->debugfs.name);\
+ sta->debugfs.name = NULL;
+
+
+void ieee80211_sta_debugfs_add(struct sta_info *sta)
+{
+ char buf[3*6];
+ struct dentry *stations_dir = sta->local->debugfs.stations;
+
+ if (!stations_dir)
+ return;
+
+ sprintf(buf, MAC_FMT, MAC_ARG(sta->addr));
+
+ sta->debugfs.dir = debugfs_create_dir(buf, stations_dir);
+ if (!sta->debugfs.dir)
+ return;
+
+ DEBUGFS_ADD(flags);
+ DEBUGFS_ADD(num_ps_buf_frames);
+ DEBUGFS_ADD(last_ack_rssi);
+ DEBUGFS_ADD(last_ack_ms);
+ DEBUGFS_ADD(inactive_ms);
+ DEBUGFS_ADD(last_seq_ctrl);
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+ DEBUGFS_ADD(wme_rx_queue);
+ DEBUGFS_ADD(wme_tx_queue);
+#endif
+}
+
+void ieee80211_sta_debugfs_remove(struct sta_info *sta)
+{
+ DEBUGFS_DEL(flags);
+ DEBUGFS_DEL(num_ps_buf_frames);
+ DEBUGFS_DEL(last_ack_rssi);
+ DEBUGFS_DEL(last_ack_ms);
+ DEBUGFS_DEL(inactive_ms);
+ DEBUGFS_DEL(last_seq_ctrl);
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+ DEBUGFS_DEL(wme_rx_queue);
+ DEBUGFS_DEL(wme_tx_queue);
+#endif
+
+ debugfs_remove(sta->debugfs.dir);
+ sta->debugfs.dir = NULL;
+}
--- /dev/null
+#ifndef __MAC80211_DEBUGFS_STA_H
+#define __MAC80211_DEBUGFS_STA_H
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+void ieee80211_sta_debugfs_add(struct sta_info *sta);
+void ieee80211_sta_debugfs_remove(struct sta_info *sta);
+#else
+static inline void ieee80211_sta_debugfs_add(struct sta_info *sta) {}
+static inline void ieee80211_sta_debugfs_remove(struct sta_info *sta) {}
+#endif
+
+#endif /* __MAC80211_DEBUGFS_STA_H */
--- /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 */
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 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 <net/mac80211.h>
+#include <net/ieee80211_radiotap.h>
+#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/etherdevice.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 "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);
+
+ /* Increase the sequence number. */
+ sdata->sequence = (sdata->sequence + 0x10) & IEEE80211_SCTL_SEQ;
+}
+
+struct ieee80211_key_conf *
+ieee80211_key_data2conf(struct ieee80211_local *local,
+ const struct ieee80211_key *data)
+{
+ 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;
+}
+
+struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
+ int idx, size_t key_len, gfp_t flags)
+{
+ struct ieee80211_key *key;
+
+ key = kzalloc(sizeof(struct ieee80211_key) + key_len, flags);
+ if (!key)
+ return NULL;
+ kref_init(&key->kref);
+ return key;
+}
+
+static void ieee80211_key_release(struct kref *kref)
+{
+ struct ieee80211_key *key;
+
+ 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);
+}
+
+void ieee80211_key_free(struct ieee80211_key *key)
+{
+ if (key)
+ kref_put(&key->kref, ieee80211_key_release);
+}
+
+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_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;
+ }
+
+ /* 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;
+ break;
+ }
+ if (ieee80211_is_erp_rate(mode->mode, rate->rate))
+ rate->flags |= IEEE80211_RATE_ERP;
+ }
+}
+
+
+static void ieee80211_key_threshold_notify(struct net_device *dev,
+ struct ieee80211_key *key,
+ struct sta_info *sta)
+{
+ 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;
+
+ 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);
+
+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);
+}
+
+#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 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;
+}
+
+
+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;
+ }
+ 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;
+ }
+
+ return TXRX_CONTINUE;
+}
+
+
+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);
+ }
+ }
+
+ 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->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;
+ }
+ 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 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;
+}
+
+
+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);
+ }
+ }
+}
+
+
+static ieee80211_txrx_result
+ieee80211_tx_h_wep_encrypt(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
+ u16 fc;
+
+ fc = le16_to_cpu(hdr->frame_control);
+
+ 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;
+
+ tx->u.tx.control->iv_len = WEP_IV_LEN;
+ tx->u.tx.control->icv_len = WEP_ICV_LEN;
+ ieee80211_tx_set_iswep(tx);
+
+ 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;
+}
+
+
+static 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 ||
+ 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 {
+ /*
+ * 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,
+ 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);
+
+
+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,
+ 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);
+ }
+
+ end:
+ if (sta)
+ sta_info_put(sta);
+}
+EXPORT_SYMBOL(__ieee80211_rx);
+
+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_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;
+ }
+ }
+
+ /* 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;
+}
+
+
+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_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;
+
+ 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;
+ if (rx->sta)
+ rx->sta->channel_use_raw += load;
+ rx->u.rx.load = load;
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_if_stats(struct ieee80211_txrx_data *rx)
+{
+ rx->sdata->channel_use_raw += rx->u.rx.load;
+ return TXRX_CONTINUE;
+}
+
+static void ieee80211_stat_refresh(unsigned long data)
+{
+ struct ieee80211_local *local = (struct ieee80211_local *) data;
+ struct sta_info *sta;
+ struct ieee80211_sub_if_data *sdata;
+
+ if (!local->stat_time)
+ return;
+
+ /* 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;
+ }
+ 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;
+ }
+ read_unlock(&local->sub_if_lock);
+
+ /* hardware interface */
+ local->channel_use = (local->channel_use_raw /
+ local->stat_time) / CHAN_UTIL_PER_10MS;
+ local->channel_use_raw = 0;
+
+ local->stat_timer.expires = jiffies + HZ * local->stat_time / 100;
+ add_timer(&local->stat_timer);
+}
+
+
+/* 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);
+
+void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
+ struct sk_buff *skb,
+ struct ieee80211_tx_status *status)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_tx_status *saved;
+ int tmp;
+
+ skb->dev = local->mdev;
+ saved = kmalloc(sizeof(struct ieee80211_tx_status), GFP_ATOMIC);
+ if (unlikely(!saved)) {
+ if (net_ratelimit())
+ printk(KERN_WARNING "%s: Not enough memory, "
+ "dropping tx status", skb->dev->name);
+ /* should be dev_kfree_skb_irq, but due to this function being
+ * named _irqsafe instead of just _irq we can't be sure that
+ * people won't call it from non-irq contexts */
+ dev_kfree_skb_any(skb);
+ return;
+ }
+ memcpy(saved, status, sizeof(struct ieee80211_tx_status));
+ /* copy pointer to saved status into skb->cb for use by tasklet */
+ memcpy(skb->cb, &saved, sizeof(saved));
+
+ skb->pkt_type = IEEE80211_TX_STATUS_MSG;
+ skb_queue_tail(status->control.flags & IEEE80211_TXCTL_REQ_TX_STATUS ?
+ &local->skb_queue : &local->skb_queue_unreliable, skb);
+ tmp = skb_queue_len(&local->skb_queue) +
+ skb_queue_len(&local->skb_queue_unreliable);
+ while (tmp > IEEE80211_IRQSAFE_QUEUE_LIMIT &&
+ (skb = skb_dequeue(&local->skb_queue_unreliable))) {
+ memcpy(&saved, skb->cb, sizeof(saved));
+ kfree(saved);
+ dev_kfree_skb_irq(skb);
+ tmp--;
+ I802_DEBUG_INC(local->tx_status_drop);
+ }
+ tasklet_schedule(&local->tasklet);
+}
+EXPORT_SYMBOL(ieee80211_tx_status_irqsafe);
+
+static void ieee80211_tasklet_handler(unsigned long data)
+{
+ struct ieee80211_local *local = (struct ieee80211_local *) data;
+ struct sk_buff *skb;
+ struct ieee80211_rx_status rx_status;
+ struct ieee80211_tx_status *tx_status;
+
+ while ((skb = skb_dequeue(&local->skb_queue)) ||
+ (skb = skb_dequeue(&local->skb_queue_unreliable))) {
+ switch (skb->pkt_type) {
+ case IEEE80211_RX_MSG:
+ /* status is in skb->cb */
+ memcpy(&rx_status, skb->cb, sizeof(rx_status));
+ /* Clear skb->type in order to not confuse kernel
+ * netstack. */
+ skb->pkt_type = 0;
+ __ieee80211_rx(local_to_hw(local), skb, &rx_status);
+ break;
+ case IEEE80211_TX_STATUS_MSG:
+ /* get pointer to saved status out of skb->cb */
+ memcpy(&tx_status, skb->cb, sizeof(tx_status));
+ skb->pkt_type = 0;
+ ieee80211_tx_status(local_to_hw(local),
+ skb, tx_status);
+ kfree(tx_status);
+ break;
+ default: /* should never get here! */
+ printk(KERN_ERR "%s: Unknown message type (%d)\n",
+ local->mdev->name, 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.
+ * Also, tx_packet_data in cb is restored from tx_control. */
+static void ieee80211_remove_tx_extra(struct ieee80211_local *local,
+ struct ieee80211_key *key,
+ struct sk_buff *skb,
+ struct ieee80211_tx_control *control)
+{
+ int hdrlen, iv_len, mic_len;
+ struct ieee80211_tx_packet_data *pkt_data;
+
+ 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->queue = control->queue;
+
+ hdrlen = ieee80211_get_hdrlen_from_skb(skb);
+
+ if (!key)
+ goto no_key;
+
+ switch (key->alg) {
+ case ALG_WEP:
+ iv_len = WEP_IV_LEN;
+ mic_len = WEP_ICV_LEN;
+ break;
+ case ALG_TKIP:
+ iv_len = TKIP_IV_LEN;
+ mic_len = TKIP_ICV_LEN;
+ break;
+ case ALG_CCMP:
+ iv_len = CCMP_HDR_LEN;
+ mic_len = CCMP_MIC_LEN;
+ break;
+ default:
+ goto no_key;
+ }
+
+ if (skb->len >= mic_len && key->force_sw_encrypt)
+ skb_trim(skb, skb->len - mic_len);
+ if (skb->len >= iv_len && skb->len > hdrlen) {
+ memmove(skb->data + iv_len, skb->data, hdrlen);
+ skb_pull(skb, iv_len);
+ }
+
+no_key:
+ {
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ u16 fc = le16_to_cpu(hdr->frame_control);
+ if ((fc & 0x8C) == 0x88) /* QoS Control Field */ {
+ fc &= ~IEEE80211_STYPE_QOS_DATA;
+ hdr->frame_control = cpu_to_le16(fc);
+ memmove(skb->data + 2, skb->data, hdrlen - 2);
+ skb_pull(skb, 2);
+ }
+ }
+}
+
+
+void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_tx_status *status)
+{
+ struct sk_buff *skb2;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_local *local = hw_to_local(hw);
+ u16 frag, type;
+ u32 msg_type;
+
+ if (!status) {
+ printk(KERN_ERR
+ "%s: ieee80211_tx_status called with NULL status\n",
+ local->mdev->name);
+ dev_kfree_skb(skb);
+ return;
+ }
+
+ if (status->excessive_retries) {
+ struct sta_info *sta;
+ sta = sta_info_get(local, hdr->addr1);
+ if (sta) {
+ if (sta->flags & WLAN_STA_PS) {
+ /* The STA is in power save mode, so assume
+ * that this TX packet failed because of that.
+ */
+ status->excessive_retries = 0;
+ status->flags |= IEEE80211_TX_STATUS_TX_FILTERED;
+ }
+ sta_info_put(sta);
+ }
+ }
+
+ if (status->flags & IEEE80211_TX_STATUS_TX_FILTERED) {
+ struct sta_info *sta;
+ sta = sta_info_get(local, hdr->addr1);
+ if (sta) {
+ sta->tx_filtered_count++;
+
+ /* Clear the TX filter mask for this STA when sending
+ * the next packet. If the STA went to power save mode,
+ * this will happen when it is waking up for the next
+ * time. */
+ sta->clear_dst_mask = 1;
+
+ /* TODO: Is the WLAN_STA_PS flag always set here or is
+ * the race between RX and TX status causing some
+ * packets to be filtered out before 80211.o gets an
+ * update for PS status? This seems to be the case, so
+ * no changes are likely to be needed. */
+ if (sta->flags & WLAN_STA_PS &&
+ skb_queue_len(&sta->tx_filtered) <
+ STA_MAX_TX_BUFFER) {
+ ieee80211_remove_tx_extra(local, sta->key,
+ skb,
+ &status->control);
+ skb_queue_tail(&sta->tx_filtered, skb);
+ } else if (!(sta->flags & WLAN_STA_PS) &&
+ !(status->control.flags & IEEE80211_TXCTL_REQUEUE)) {
+ /* Software retry the packet once */
+ status->control.flags |= IEEE80211_TXCTL_REQUEUE;
+ ieee80211_remove_tx_extra(local, sta->key,
+ skb,
+ &status->control);
+ dev_queue_xmit(skb);
+ } else {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: dropped TX "
+ "filtered frame queue_len=%d "
+ "PS=%d @%lu\n",
+ local->mdev->name,
+ skb_queue_len(
+ &sta->tx_filtered),
+ !!(sta->flags & WLAN_STA_PS),
+ jiffies);
+ }
+ dev_kfree_skb(skb);
+ }
+ sta_info_put(sta);
+ return;
+ }
+ } else {
+ /* FIXME: STUPID to call this with both local and local->mdev */
+ rate_control_tx_status(local, local->mdev, skb, status);
+ }
+
+ ieee80211_led_tx(local, 0);
+
+ /* SNMP counters
+ * Fragments are passed to low-level drivers as separate skbs, so these
+ * are actually fragments, not frames. Update frame counters only for
+ * the first fragment of the frame. */
+
+ frag = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG;
+ type = le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_FTYPE;
+
+ if (status->flags & IEEE80211_TX_STATUS_ACK) {
+ if (frag == 0) {
+ local->dot11TransmittedFrameCount++;
+ if (is_multicast_ether_addr(hdr->addr1))
+ local->dot11MulticastTransmittedFrameCount++;
+ if (status->retry_count > 0)
+ local->dot11RetryCount++;
+ if (status->retry_count > 1)
+ local->dot11MultipleRetryCount++;
+ }
+
+ /* This counter shall be incremented for an acknowledged MPDU
+ * with an individual address in the address 1 field or an MPDU
+ * with a multicast address in the address 1 field of type Data
+ * or Management. */
+ if (!is_multicast_ether_addr(hdr->addr1) ||
+ type == IEEE80211_FTYPE_DATA ||
+ type == IEEE80211_FTYPE_MGMT)
+ local->dot11TransmittedFragmentCount++;
+ } else {
+ if (frag == 0)
+ local->dot11FailedCount++;
+ }
+
+ if (!(status->control.flags & IEEE80211_TXCTL_REQ_TX_STATUS)
+ || unlikely(!local->apdev)) {
+ dev_kfree_skb(skb);
+ return;
+ }
+
+ msg_type = (status->flags & IEEE80211_TX_STATUS_ACK) ?
+ ieee80211_msg_tx_callback_ack : ieee80211_msg_tx_callback_fail;
+
+ /* 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) {
+ 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));
+ }
+
+ /* Update WDS link data */
+ memcpy(&sdata->u.wds.remote_addr, remote_addr, ETH_ALEN);
+
+ return 0;
+}
+
+/* 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;
+}
+
+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;
+}
+
+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;
+ }
+
+ 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", 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);
+}
+
+struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
+ const struct ieee80211_ops *ops)
+{
+ struct net_device *mdev;
+ struct ieee80211_local *local;
+ struct ieee80211_sub_if_data *sdata;
+ int priv_size;
+ struct wiphy *wiphy;
+
+ /* Ensure 32-byte alignment of our private data and hw private data.
+ * We use the wiphy priv data for both our ieee80211_local and for
+ * the driver's private data
+ *
+ * In memory it'll be like this:
+ *
+ * +-------------------------+
+ * | struct wiphy |
+ * +-------------------------+
+ * | struct ieee80211_local |
+ * +-------------------------+
+ * | driver's private data |
+ * +-------------------------+
+ *
+ */
+ priv_size = ((sizeof(struct ieee80211_local) +
+ NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST) +
+ priv_data_len;
+
+ wiphy = wiphy_new(&mac80211_config_ops, priv_size);
+
+ if (!wiphy)
+ return NULL;
+
+ wiphy->privid = mac80211_wiphy_privid;
+
+ local = wiphy_priv(wiphy);
+ local->hw.wiphy = wiphy;
+
+ local->hw.priv = (char *)local +
+ ((sizeof(struct ieee80211_local) +
+ NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);
+
+ local->ops = ops;
+
+ /* for now, mdev needs sub_if_data :/ */
+ mdev = alloc_netdev(sizeof(struct ieee80211_sub_if_data),
+ "wmaster%d", ether_setup);
+ if (!mdev) {
+ wiphy_free(wiphy);
+ return NULL;
+ }
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(mdev);
+ mdev->ieee80211_ptr = &sdata->wdev;
+ sdata->wdev.wiphy = wiphy;
+
+ local->hw.queues = 1; /* default */
+
+ local->mdev = mdev;
+ local->rx_pre_handlers = ieee80211_rx_pre_handlers;
+ local->rx_handlers = ieee80211_rx_handlers;
+ local->tx_handlers = ieee80211_tx_handlers;
+
+ local->bridge_packets = 1;
+
+ local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
+ local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
+ 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;
+
+ INIT_LIST_HEAD(&local->modes_list);
+
+ rwlock_init(&local->sub_if_lock);
+ INIT_LIST_HEAD(&local->sub_if_list);
+
+ 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->hard_start_xmit = ieee80211_master_start_xmit;
+ mdev->open = ieee80211_master_open;
+ mdev->stop = ieee80211_master_stop;
+ mdev->type = ARPHRD_IEEE80211;
+ mdev->hard_header_parse = header_parse_80211;
+
+ sdata->type = IEEE80211_IF_TYPE_AP;
+ sdata->dev = mdev;
+ sdata->local = local;
+ 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);
+
+ tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
+ (unsigned long)local);
+ tasklet_disable(&local->tx_pending_tasklet);
+
+ tasklet_init(&local->tasklet,
+ ieee80211_tasklet_handler,
+ (unsigned long) local);
+ tasklet_disable(&local->tasklet);
+
+ skb_queue_head_init(&local->skb_queue);
+ skb_queue_head_init(&local->skb_queue_unreliable);
+
+ return local_to_hw(local);
+}
+EXPORT_SYMBOL(ieee80211_alloc_hw);
+
+int ieee80211_register_hw(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ const char *name;
+ int result;
+
+ result = wiphy_register(local->hw.wiphy);
+ if (result < 0)
+ return result;
+
+ name = wiphy_dev(local->hw.wiphy)->driver->name;
+ local->hw.workqueue = create_singlethread_workqueue(name);
+ if (!local->hw.workqueue) {
+ result = -ENOMEM;
+ goto fail_workqueue;
+ }
+
+ debugfs_hw_add(local);
+
+ local->hw.conf.beacon_int = 1000;
+
+ local->wstats_flags |= local->hw.max_rssi ?
+ IW_QUAL_LEVEL_UPDATED : IW_QUAL_LEVEL_INVALID;
+ local->wstats_flags |= local->hw.max_signal ?
+ IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID;
+ local->wstats_flags |= local->hw.max_noise ?
+ IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID;
+ if (local->hw.max_rssi < 0 || local->hw.max_noise < 0)
+ local->wstats_flags |= IW_QUAL_DBM;
+
+ result = sta_info_start(local);
+ if (result < 0)
+ goto fail_sta_info;
+
+ rtnl_lock();
+ result = dev_alloc_name(local->mdev, local->mdev->name);
+ if (result < 0)
+ goto fail_dev;
+
+ memcpy(local->mdev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
+ SET_NETDEV_DEV(local->mdev, wiphy_dev(local->hw.wiphy));
+
+ result = register_netdevice(local->mdev);
+ if (result < 0)
+ goto fail_dev;
+
+ ieee80211_debugfs_add_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
+
+ 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);
+ goto fail_rate;
+ }
+
+ result = ieee80211_wep_init(local);
+
+ if (result < 0) {
+ printk(KERN_DEBUG "%s: Failed to initialize wep\n",
+ local->mdev->name);
+ goto fail_wep;
+ }
+
+ ieee80211_install_qdisc(local->mdev);
+
+ /* add one default STA interface */
+ result = ieee80211_if_add(local->mdev, "wlan%d", NULL,
+ IEEE80211_IF_TYPE_STA);
+ if (result)
+ printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
+ local->mdev->name);
+
+ local->reg_state = IEEE80211_DEV_REGISTERED;
+ rtnl_unlock();
+
+ ieee80211_led_init(local);
+
+ return 0;
+
+fail_wep:
+ rate_control_deinitialize(local);
+fail_rate:
+ ieee80211_debugfs_remove_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
+ unregister_netdevice(local->mdev);
+fail_dev:
+ rtnl_unlock();
+ sta_info_stop(local);
+fail_sta_info:
+ debugfs_hw_del(local);
+ destroy_workqueue(local->hw.workqueue);
+fail_workqueue:
+ wiphy_unregister(local->hw.wiphy);
+ return result;
+}
+EXPORT_SYMBOL(ieee80211_register_hw);
+
+int ieee80211_register_hwmode(struct ieee80211_hw *hw,
+ struct ieee80211_hw_mode *mode)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_rate *rate;
+ int i;
+
+ INIT_LIST_HEAD(&mode->list);
+ list_add_tail(&mode->list, &local->modes_list);
+
+ local->hw_modes |= (1 << mode->mode);
+ for (i = 0; i < mode->num_rates; i++) {
+ rate = &(mode->rates[i]);
+ rate->rate_inv = CHAN_UTIL_RATE_LCM / rate->rate;
+ }
+ ieee80211_prepare_rates(local, mode);
+
+ if (!local->oper_hw_mode) {
+ /* Default to this mode */
+ local->hw.conf.phymode = mode->mode;
+ local->oper_hw_mode = local->scan_hw_mode = mode;
+ local->oper_channel = local->scan_channel = &mode->channels[0];
+ local->hw.conf.mode = local->oper_hw_mode;
+ local->hw.conf.chan = local->oper_channel;
+ }
+
+ if (!(hw->flags & IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED))
+ ieee80211_init_client(local->mdev);
+
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_register_hwmode);
+
+void ieee80211_unregister_hw(struct ieee80211_hw *hw)
+{
+ 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);
+ tasklet_kill(&local->tasklet);
+
+ rtnl_lock();
+
+ 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);
+
+ list_for_each_entry_safe(sdata, tmp, &tmp_list, list)
+ __ieee80211_if_del(local, sdata);
+
+ rtnl_unlock();
+
+ if (local->stat_time)
+ del_timer_sync(&local->stat_timer);
+
+ ieee80211_rx_bss_list_deinit(local->mdev);
+ ieee80211_clear_tx_pending(local);
+ sta_info_stop(local);
+ rate_control_deinitialize(local);
+ debugfs_hw_del(local);
+
+ for (i = 0; i < NUM_IEEE80211_MODES; i++) {
+ kfree(local->supp_rates[i]);
+ kfree(local->basic_rates[i]);
+ }
+
+ 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);
+ skb_queue_purge(&local->skb_queue);
+ skb_queue_purge(&local->skb_queue_unreliable);
+
+ destroy_workqueue(local->hw.workqueue);
+ wiphy_unregister(local->hw.wiphy);
+ ieee80211_wep_free(local);
+ ieee80211_led_exit(local);
+}
+EXPORT_SYMBOL(ieee80211_unregister_hw);
+
+void ieee80211_free_hw(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ ieee80211_if_free(local->mdev);
+ wiphy_free(local->hw.wiphy);
+}
+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;
+ int ret;
+
+ BUILD_BUG_ON(sizeof(struct ieee80211_tx_packet_data) > sizeof(skb->cb));
+
+ ret = ieee80211_wme_register();
+ if (ret) {
+ printk(KERN_DEBUG "ieee80211_init: failed to "
+ "initialize WME (err=%d)\n", ret);
+ return ret;
+ }
+
+ ieee80211_debugfs_netdev_init();
+
+ return 0;
+}
+
+
+static void __exit ieee80211_exit(void)
+{
+ ieee80211_wme_unregister();
+ ieee80211_debugfs_netdev_exit();
+}
+
+
+module_init(ieee80211_init);
+module_exit(ieee80211_exit);
+
+MODULE_DESCRIPTION("IEEE 802.11 subsystem");
+MODULE_LICENSE("GPL");
--- /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,
+ unsigned int 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 */
--- /dev/null
+/*
+ * IEEE 802.11 driver (80211.o) -- hostapd interface
+ * Copyright 2002-2004, Instant802 Networks, 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 IEEE80211_COMMON_H
+#define IEEE80211_COMMON_H
+
+#include <linux/types.h>
+
+/*
+ * This is common header information with user space. It is used on all
+ * frames sent to wlan#ap interface.
+ */
+
+#define IEEE80211_FI_VERSION 0x80211001
+
+struct ieee80211_frame_info {
+ __be32 version;
+ __be32 length;
+ __be64 mactime;
+ __be64 hosttime;
+ __be32 phytype;
+ __be32 channel;
+ __be32 datarate;
+ __be32 antenna;
+ __be32 priority;
+ __be32 ssi_type;
+ __be32 ssi_signal;
+ __be32 ssi_noise;
+ __be32 preamble;
+ __be32 encoding;
+
+ /* Note: this structure is otherwise identical to capture format used
+ * in linux-wlan-ng, but this additional field is used to provide meta
+ * data about the frame to hostapd. This was the easiest method for
+ * providing this information, but this might change in the future. */
+ __be32 msg_type;
+} __attribute__ ((packed));
+
+
+enum ieee80211_msg_type {
+ 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,
+ 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;
+};
+
+struct ieee80211_msg_key_notification {
+ int tx_rx_count;
+ char ifname[IFNAMSIZ];
+ u8 addr[ETH_ALEN]; /* ff:ff:ff:ff:ff:ff for broadcast keys */
+};
+
+
+enum ieee80211_phytype {
+ ieee80211_phytype_fhss_dot11_97 = 1,
+ ieee80211_phytype_dsss_dot11_97 = 2,
+ ieee80211_phytype_irbaseband = 3,
+ ieee80211_phytype_dsss_dot11_b = 4,
+ ieee80211_phytype_pbcc_dot11_b = 5,
+ 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 {
+ ieee80211_ssi_none = 0,
+ ieee80211_ssi_norm = 1, /* normalized, 0-1000 */
+ ieee80211_ssi_dbm = 2,
+ ieee80211_ssi_raw = 3, /* raw SSI */
+};
+
+struct ieee80211_radar_info {
+ int channel;
+ int radar;
+ int radar_type;
+};
+
+#endif /* IEEE80211_COMMON_H */
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005, Devicescape Software, Inc.
+ * Copyright 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.
+ */
+
+#ifndef IEEE80211_I_H
+#define IEEE80211_I_H
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/if_ether.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/workqueue.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <net/wireless.h>
+#include "ieee80211_key.h"
+#include "sta_info.h"
+
+/* ieee80211.o internal definitions, etc. These are not included into
+ * low-level drivers. */
+
+#ifndef ETH_P_PAE
+#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
+#endif /* ETH_P_PAE */
+
+#define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
+
+struct ieee80211_local;
+
+#define BIT(x) (1 << (x))
+
+#define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3)
+
+/* Maximum number of broadcast/multicast frames to buffer when some of the
+ * associated stations are using power saving. */
+#define AP_MAX_BC_BUFFER 128
+
+/* Maximum number of frames buffered to all STAs, including multicast frames.
+ * Note: increasing this limit increases the potential memory requirement. Each
+ * frame can be up to about 2 kB long. */
+#define TOTAL_MAX_TX_BUFFER 512
+
+/* Required encryption head and tailroom */
+#define IEEE80211_ENCRYPT_HEADROOM 8
+#define IEEE80211_ENCRYPT_TAILROOM 12
+
+/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
+ * reception of at least three fragmented frames. This limit can be increased
+ * by changing this define, at the cost of slower frame reassembly and
+ * 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;
+ unsigned int rx_queue;
+ unsigned int last_frag;
+ unsigned int extra_len;
+ struct sk_buff_head skb_list;
+ int ccmp; /* Whether fragments were encrypted with CCMP */
+ u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
+};
+
+
+struct ieee80211_sta_bss {
+ struct list_head list;
+ struct ieee80211_sta_bss *hnext;
+ atomic_t users;
+
+ u8 bssid[ETH_ALEN];
+ u8 ssid[IEEE80211_MAX_SSID_LEN];
+ size_t ssid_len;
+ u16 capability; /* host byte order */
+ int hw_mode;
+ int channel;
+ int freq;
+ int rssi, signal, noise;
+ u8 *wpa_ie;
+ size_t wpa_ie_len;
+ u8 *rsn_ie;
+ 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 beacon_int;
+ u64 timestamp;
+
+ int probe_resp;
+ unsigned long last_update;
+
+};
+
+
+typedef enum {
+ TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED
+} ieee80211_txrx_result;
+
+struct ieee80211_txrx_data {
+ struct sk_buff *skb;
+ struct net_device *dev;
+ struct ieee80211_local *local;
+ struct ieee80211_sub_if_data *sdata;
+ struct sta_info *sta;
+ u16 fc, ethertype;
+ struct ieee80211_key *key;
+ unsigned int fragmented:1; /* whether the MSDU was fragmented */
+ 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
+ * be set to lower rate for the first fragments, e.g.,
+ * 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 num_extra_frag;
+ struct sk_buff **extra_frag;
+ } tx;
+ struct {
+ struct ieee80211_rx_status *status;
+ 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;
+ } rx;
+ } u;
+#ifdef CONFIG_HOSTAPD_WPA_TESTING
+ int wpa_test;
+#endif /* CONFIG_HOSTAPD_WPA_TESTING */
+};
+
+/* 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;
+};
+
+struct ieee80211_tx_stored_packet {
+ struct ieee80211_tx_control control;
+ struct sk_buff *skb;
+ int num_extra_frag;
+ struct sk_buff **extra_frag;
+ 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;
+};
+
+typedef ieee80211_txrx_result (*ieee80211_tx_handler)
+(struct ieee80211_txrx_data *tx);
+
+typedef ieee80211_txrx_result (*ieee80211_rx_handler)
+(struct ieee80211_txrx_data *rx);
+
+struct ieee80211_if_ap {
+ u8 *beacon_head, *beacon_tail;
+ int beacon_head_len, beacon_tail_len;
+
+ 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 :)
+ * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
+ u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
+ atomic_t num_sta_ps; /* number of stations in PS mode */
+ struct sk_buff_head ps_bc_buf;
+ int dtim_period, dtim_count;
+ int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
+ int max_ratectrl_rateidx; /* max TX rateidx for rate control */
+ int num_beacons; /* number of TXed beacon frames for this BSS */
+};
+
+struct ieee80211_if_wds {
+ u8 remote_addr[ETH_ALEN];
+ struct sta_info *sta;
+};
+
+struct ieee80211_if_vlan {
+ u8 id;
+};
+
+struct ieee80211_if_sta {
+ enum {
+ IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
+ IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
+ IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
+ } 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;
+ u16 aid;
+ u16 ap_capab, capab;
+ u8 *extra_ie; /* to be added to the end of AssocReq */
+ size_t extra_ie_len;
+
+ /* The last AssocReq/Resp IEs */
+ u8 *assocreq_ies, *assocresp_ies;
+ size_t assocreq_ies_len, assocresp_ies_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;
+#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;
+ unsigned long last_probe;
+
+#define IEEE80211_AUTH_ALG_OPEN BIT(0)
+#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
+#define IEEE80211_AUTH_ALG_LEAP BIT(2)
+ unsigned int auth_algs; /* bitfield of allowed auth algs */
+ int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
+ int auth_transaction;
+
+ unsigned long ibss_join_req;
+ struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
+ 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];
+};
+
+
+struct ieee80211_sub_if_data {
+ struct list_head list;
+ unsigned int type;
+
+ struct wireless_dev wdev;
+
+ struct net_device *dev;
+ struct ieee80211_local *local;
+
+ int mc_count;
+ unsigned int allmulti:1;
+ unsigned int promisc:1;
+
+ 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
+ * (default) */
+ int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized
+ * port */
+
+ u16 sequence;
+
+ /* Fragment table for host-based reassembly */
+ struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
+ unsigned int fragment_next;
+
+#define NUM_DEFAULT_KEYS 4
+ struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
+ struct ieee80211_key *default_key;
+
+ struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
+
+ union {
+ struct ieee80211_if_ap ap;
+ struct ieee80211_if_wds wds;
+ struct ieee80211_if_vlan vlan;
+ struct ieee80211_if_sta sta;
+ } u;
+ int channel_use;
+ int channel_use_raw;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct dentry *debugfsdir;
+ union {
+ struct {
+ struct dentry *channel_use;
+ struct dentry *drop_unencrypted;
+ struct dentry *eapol;
+ struct dentry *ieee8021_x;
+ struct dentry *state;
+ struct dentry *bssid;
+ struct dentry *prev_bssid;
+ struct dentry *ssid_len;
+ struct dentry *aid;
+ struct dentry *ap_capab;
+ struct dentry *capab;
+ struct dentry *extra_ie_len;
+ struct dentry *auth_tries;
+ struct dentry *assoc_tries;
+ struct dentry *auth_algs;
+ 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 *num_sta_ps;
+ struct dentry *dtim_period;
+ struct dentry *dtim_count;
+ struct dentry *num_beacons;
+ struct dentry *force_unicast_rateidx;
+ struct dentry *max_ratectrl_rateidx;
+ struct dentry *num_buffered_multicast;
+ struct dentry *beacon_head_len;
+ struct dentry *beacon_tail_len;
+ } ap;
+ struct {
+ struct dentry *channel_use;
+ struct dentry *drop_unencrypted;
+ struct dentry *eapol;
+ struct dentry *ieee8021_x;
+ struct dentry *peer;
+ } wds;
+ 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;
+ } monitor;
+ struct dentry *default_key;
+ } debugfs;
+#endif
+};
+
+#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
+
+enum {
+ IEEE80211_RX_MSG = 1,
+ IEEE80211_TX_STATUS_MSG = 2,
+};
+
+struct ieee80211_local {
+ /* embed the driver visible part.
+ * don't cast (use the static inlines below), but we keep
+ * it first anyway so they become a no-op */
+ struct ieee80211_hw hw;
+
+ const struct ieee80211_ops *ops;
+
+ /* List of registered struct ieee80211_hw_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;
+ struct iw_statistics wstats;
+ u8 wstats_flags;
+
+ enum {
+ IEEE80211_DEV_UNINITIALIZED = 0,
+ IEEE80211_DEV_REGISTERED,
+ IEEE80211_DEV_UNREGISTERED,
+ } reg_state;
+
+ /* Tasklet and skb queue to process calls from IRQ mode. All frames
+ * added to skb_queue will be processed, but frames in
+ * skb_queue_unreliable may be dropped if the total length of these
+ * queues increases over the limit. */
+#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
+ struct tasklet_struct tasklet;
+ struct sk_buff_head skb_queue;
+ struct sk_buff_head skb_queue_unreliable;
+
+ /* Station data structures */
+ spinlock_t sta_lock; /* mutex for 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;
+
+ unsigned long state[NUM_TX_DATA_QUEUES];
+ 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 */
+
+ 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
+ * media and to the local net stack */
+
+ ieee80211_rx_handler *rx_pre_handlers;
+ 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;
+ int sta_scanning;
+ int scan_channel_idx;
+ enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
+ unsigned long last_scan_completed;
+ struct delayed_work scan_work;
+ struct net_device *scan_dev;
+ struct ieee80211_channel *oper_channel, *scan_channel;
+ struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
+ u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
+ size_t scan_ssid_len;
+ struct list_head sta_bss_list;
+ struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
+ spinlock_t sta_bss_lock;
+#define IEEE80211_SCAN_MATCH_SSID BIT(0)
+#define IEEE80211_SCAN_WPA_ONLY BIT(1)
+#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;
+ u32 dot11MulticastTransmittedFrameCount;
+ u32 dot11FailedCount;
+ u32 dot11RetryCount;
+ u32 dot11MultipleRetryCount;
+ u32 dot11FrameDuplicateCount;
+ u32 dot11ReceivedFragmentCount;
+ u32 dot11MulticastReceivedFrameCount;
+ u32 dot11TransmittedFrameCount;
+ u32 dot11WEPUndecryptableCount;
+
+#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];
+#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;
+ unsigned int tx_handlers_queued;
+ unsigned int tx_handlers_drop_unencrypted;
+ unsigned int tx_handlers_drop_fragment;
+ unsigned int tx_handlers_drop_wep;
+ unsigned int tx_handlers_drop_not_assoc;
+ unsigned int tx_handlers_drop_unauth_port;
+ unsigned int rx_handlers_drop;
+ unsigned int rx_handlers_queued;
+ unsigned int rx_handlers_drop_nullfunc;
+ unsigned int rx_handlers_drop_defrag;
+ unsigned int rx_handlers_drop_short;
+ unsigned int rx_handlers_drop_passive_scan;
+ unsigned int tx_expand_skb_head;
+ unsigned int tx_expand_skb_head_cloned;
+ unsigned int rx_expand_skb_head;
+ unsigned int rx_expand_skb_head2;
+ unsigned int rx_handlers_fragments;
+ unsigned int tx_status_drop;
+ unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
+ unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
+#define I802_DEBUG_INC(c) (c)++
+#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
+#define I802_DEBUG_INC(c) do { } while (0)
+#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 enabled_modes; /* bitfield of allowed modes;
+ * (1 << MODE_*) */
+ 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 *long_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 {
+ struct dentry *transmitted_fragment_count;
+ struct dentry *multicast_transmitted_frame_count;
+ struct dentry *failed_count;
+ struct dentry *retry_count;
+ struct dentry *multiple_retry_count;
+ struct dentry *frame_duplicate_count;
+ struct dentry *received_fragment_count;
+ struct dentry *multicast_received_frame_count;
+ struct dentry *transmitted_frame_count;
+ struct dentry *wep_undecryptable_count;
+ struct dentry *num_scans;
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+ struct dentry *tx_handlers_drop;
+ struct dentry *tx_handlers_queued;
+ struct dentry *tx_handlers_drop_unencrypted;
+ struct dentry *tx_handlers_drop_fragment;
+ struct dentry *tx_handlers_drop_wep;
+ struct dentry *tx_handlers_drop_not_assoc;
+ struct dentry *tx_handlers_drop_unauth_port;
+ struct dentry *rx_handlers_drop;
+ struct dentry *rx_handlers_queued;
+ struct dentry *rx_handlers_drop_nullfunc;
+ struct dentry *rx_handlers_drop_defrag;
+ struct dentry *rx_handlers_drop_short;
+ struct dentry *rx_handlers_drop_passive_scan;
+ struct dentry *tx_expand_skb_head;
+ struct dentry *tx_expand_skb_head_cloned;
+ struct dentry *rx_expand_skb_head;
+ struct dentry *rx_expand_skb_head2;
+ struct dentry *rx_handlers_fragments;
+ struct dentry *tx_status_drop;
+ struct dentry *wme_tx_queue;
+ struct dentry *wme_rx_queue;
+#endif
+ struct dentry *dot11ACKFailureCount;
+ struct dentry *dot11RTSFailureCount;
+ struct dentry *dot11FCSErrorCount;
+ struct dentry *dot11RTSSuccessCount;
+ } stats;
+ struct dentry *stations;
+ struct dentry *keys;
+ } debugfs;
+#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)
+{
+ return container_of(hw, struct ieee80211_local, hw);
+}
+
+static inline struct ieee80211_hw *local_to_hw(
+ struct ieee80211_local *local)
+{
+ return &local->hw;
+}
+
+enum ieee80211_link_state_t {
+ IEEE80211_LINK_STATE_XOFF = 0,
+ IEEE80211_LINK_STATE_PENDING,
+};
+
+struct sta_attribute {
+ struct attribute attr;
+ ssize_t (*show)(const struct sta_info *, char *buf);
+ 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)
+{
+ /*
+ * This format has ben 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);
+}
+
+static inline void bss_tim_set(struct ieee80211_local *local,
+ struct ieee80211_if_ap *bss, int aid)
+{
+ spin_lock_bh(&local->sta_lock);
+ __bss_tim_set(bss, aid);
+ spin_unlock_bh(&local->sta_lock);
+}
+
+static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, int aid)
+{
+ /*
+ * This format has ben 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));
+}
+
+static inline void bss_tim_clear(struct ieee80211_local *local,
+ struct ieee80211_if_ap *bss, int aid)
+{
+ spin_lock_bh(&local->sta_lock);
+ __bss_tim_clear(bss, aid);
+ spin_unlock_bh(&local->sta_lock);
+}
+
+/**
+ * ieee80211_is_erp_rate - Check if a rate is an ERP rate
+ * @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
+ * @rate: Transmission rate to check, in 100 kbps
+ *
+ * Check if a given rate is an Extended Rate PHY (ERP) rate.
+ */
+static inline int ieee80211_is_erp_rate(int phymode, int rate)
+{
+ if (phymode == MODE_IEEE80211G) {
+ if (rate != 10 && rate != 20 &&
+ rate != 55 && rate != 110)
+ return 1;
+ }
+ return 0;
+}
+
+/* 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);
+
+/* 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. */
+#define CHAN_UTIL_RATE_LCM 95040
+/* 1 usec is 1/8 * (95040/10) = 1188 */
+#define CHAN_UTIL_PER_USEC 1188
+/* Amount of bits to shift the result right to scale the total utilization
+ * to values that will not wrap around 32-bit integers. */
+#define CHAN_UTIL_SHIFT 9
+/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
+ * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
+ * raw value with about 23 should give utilization in 10th of a percentage
+ * (1/1000). However, utilization is only estimated and not all intervals
+ * between frames etc. are calculated. 18 seems to give numbers that are closer
+ * to the real maximum. */
+#define CHAN_UTIL_PER_10MS 18
+#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
+#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
+
+
+/* ieee80211_ioctl.c */
+int ieee80211_set_compression(struct ieee80211_local *local,
+ struct net_device *dev, struct sta_info *sta);
+int ieee80211_init_client(struct net_device *dev);
+int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
+/* 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);
+int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
+int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
+int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
+int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
+void ieee80211_sta_req_auth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta);
+int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
+void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
+ struct ieee80211_rx_status *rx_status);
+void ieee80211_rx_bss_list_init(struct net_device *dev);
+void ieee80211_rx_bss_list_deinit(struct net_device *dev);
+int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
+struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
+ struct sk_buff *skb, u8 *bssid,
+ 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, u32 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);
+
+/* ieee80211_iface.c */
+int ieee80211_if_add(struct net_device *dev, const char *name,
+ struct net_device **new_dev, int type);
+void ieee80211_if_set_type(struct net_device *dev, int type);
+void ieee80211_if_reinit(struct net_device *dev);
+void __ieee80211_if_del(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata);
+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);
+
+/* for wiphy privid */
+extern void *mac80211_wiphy_privid;
+
+#endif /* IEEE80211_I_H */
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright (c) 2006 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/kernel.h>
+#include <linux/if_arp.h>
+#include <linux/netdevice.h>
+#include <linux/rtnetlink.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "sta_info.h"
+#include "debugfs_netdev.h"
+
+void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata)
+{
+ int i;
+
+ /* Default values for sub-interface parameters */
+ sdata->drop_unencrypted = 0;
+ sdata->eapol = 1;
+ for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
+ skb_queue_head_init(&sdata->fragments[i].skb_list);
+}
+
+static void ieee80211_if_sdata_deinit(struct ieee80211_sub_if_data *sdata)
+{
+ int i;
+
+ for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) {
+ __skb_queue_purge(&sdata->fragments[i].skb_list);
+ }
+}
+
+/* Must be called with rtnl lock held. */
+int ieee80211_if_add(struct net_device *dev, const char *name,
+ struct net_device **new_dev, int type)
+{
+ struct net_device *ndev;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = NULL;
+ int ret;
+
+ ASSERT_RTNL();
+ ndev = alloc_netdev(sizeof(struct ieee80211_sub_if_data),
+ name, ieee80211_if_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);
+ ndev->base_addr = dev->base_addr;
+ ndev->irq = dev->irq;
+ ndev->mem_start = dev->mem_start;
+ ndev->mem_end = dev->mem_end;
+ SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy));
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(ndev);
+ ndev->ieee80211_ptr = &sdata->wdev;
+ sdata->wdev.wiphy = local->hw.wiphy;
+ sdata->type = IEEE80211_IF_TYPE_AP;
+ sdata->dev = ndev;
+ sdata->local = local;
+ ieee80211_if_sdata_init(sdata);
+
+ ret = register_netdevice(ndev);
+ if (ret)
+ goto fail;
+
+ ieee80211_debugfs_add_netdev(sdata);
+ ieee80211_if_set_type(ndev, type);
+
+ write_lock_bh(&local->sub_if_lock);
+ 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);
+ if (new_dev)
+ *new_dev = ndev;
+ write_unlock_bh(&local->sub_if_lock);
+
+ ieee80211_update_default_wep_only(local);
+
+ return 0;
+
+fail:
+ free_netdev(ndev);
+ 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;
+
+ sdata->type = type;
+ switch (type) {
+ case IEEE80211_IF_TYPE_WDS:
+ sdata->bss = NULL;
+ break;
+ case IEEE80211_IF_TYPE_VLAN:
+ break;
+ case IEEE80211_IF_TYPE_AP:
+ sdata->u.ap.dtim_period = 2;
+ sdata->u.ap.force_unicast_rateidx = -1;
+ sdata->u.ap.max_ratectrl_rateidx = -1;
+ skb_queue_head_init(&sdata->u.ap.ps_bc_buf);
+ sdata->bss = &sdata->u.ap;
+ break;
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS: {
+ struct ieee80211_sub_if_data *msdata;
+ struct ieee80211_if_sta *ifsta;
+
+ ifsta = &sdata->u.sta;
+ INIT_WORK(&ifsta->work, ieee80211_sta_work);
+ setup_timer(&ifsta->timer, ieee80211_sta_timer,
+ (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;
+
+ msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev);
+ sdata->bss = &msdata->u.ap;
+ break;
+ }
+ case IEEE80211_IF_TYPE_MNTR:
+ dev->type = ARPHRD_IEEE80211_RADIOTAP;
+ 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. */
+void ieee80211_if_reinit(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);
+ struct sta_info *sta;
+ int i;
+
+ ASSERT_RTNL();
+ 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_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) {
+ 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);
+ }
+ }
+ 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);
+ }
+ }
+
+ break;
+ }
+ case IEEE80211_IF_TYPE_WDS:
+ sta = sta_info_get(local, sdata->u.wds.remote_addr);
+ if (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 "
+ "entry for the WDS link\n", dev->name);
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+ }
+ break;
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ kfree(sdata->u.sta.extra_ie);
+ sdata->u.sta.extra_ie = NULL;
+ kfree(sdata->u.sta.assocreq_ies);
+ sdata->u.sta.assocreq_ies = NULL;
+ kfree(sdata->u.sta.assocresp_ies);
+ sdata->u.sta.assocresp_ies = NULL;
+ if (sdata->u.sta.probe_resp) {
+ dev_kfree_skb(sdata->u.sta.probe_resp);
+ sdata->u.sta.probe_resp = NULL;
+ }
+
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ dev->type = ARPHRD_ETHER;
+ break;
+ }
+
+ /* remove all STAs that are bound to this virtual interface */
+ sta_info_flush(local, dev);
+
+ memset(&sdata->u, 0, sizeof(sdata->u));
+ ieee80211_if_sdata_init(sdata);
+}
+
+/* Must be called with rtnl lock held. */
+void __ieee80211_if_del(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata)
+{
+ struct net_device *dev = sdata->dev;
+
+ ieee80211_debugfs_remove_netdev(sdata);
+ unregister_netdevice(dev);
+ /* Except master interface, the net_device will be freed by
+ * net_device->destructor (i. e. ieee80211_if_free). */
+}
+
+/* Must be called with rtnl lock held. */
+int ieee80211_if_remove(struct net_device *dev, const char *name, int id)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata, *n;
+
+ ASSERT_RTNL();
+
+ write_lock_bh(&local->sub_if_lock);
+ list_for_each_entry_safe(sdata, n, &local->sub_if_list, 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);
+ __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);
+}
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, 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.
+ */
+
+#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/etherdevice.h>
+#include <linux/if_arp.h>
+#include <linux/wireless.h>
+#include <net/iw_handler.h>
+#include <asm/uaccess.h>
+
+#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_regdom = 0x10; /* FCC */
+module_param(ieee80211_regdom, int, 0444);
+MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain; 64=MKK");
+
+/*
+ * If firmware is upgraded by the vendor, additional channels can be used based
+ * on the new Japanese regulatory rules. This is indicated by setting
+ * ieee80211_japan_5ghz module parameter to one when loading the 80211 kernel
+ * module.
+ */
+static int ieee80211_japan_5ghz /* = 0 */;
+module_param(ieee80211_japan_5ghz, int, 0444);
+MODULE_PARM_DESC(ieee80211_japan_5ghz, "Vendor-updated firmware for 5 GHz");
+
+
+static int ieee80211_ioctl_set_beacon(struct net_device *dev,
+ struct prism2_hostapd_param *param,
+ int param_len,
+ int flag)
+{
+ 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);
+ return -EINVAL;
+ }
+
+ kfree(*b_head);
+ kfree(*b_tail);
+ *b_head = NULL;
+ *b_tail = NULL;
+
+ *b_head_len = param->u.beacon.head_len;
+ *b_tail_len = param->u.beacon.tail_len;
+
+ *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;
+ }
+
+ 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;
+ }
+ }
+
+ return ieee80211_if_config_beacon(dev);
+}
+
+
+static int ieee80211_ioctl_get_hw_features(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.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;
+
+ 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;
+
+ 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;
+
+ 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;
+ }
+
+ return 0;
+}
+
+static int ieee80211_ioctl_flush(struct net_device *dev,
+ struct prism2_hostapd_param *param)
+{
+ 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));
+
+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);
+}
+
+
+static int ieee80211_ioctl_add_sta(struct net_device *dev,
+ struct prism2_hostapd_param *param)
+{
+ 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;
+
+ /* Prevent a race with changing the rate control algorithm */
+ if (!netif_running(dev))
+ return -ENETDOWN;
+
+ sta = sta_info_get(local, param->sta_addr);
+
+ if (!sta) {
+ sta = sta_info_add(local, dev, param->sta_addr, GFP_KERNEL);
+ if (!sta)
+ return -ENOMEM;
+ }
+
+ 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);
+ }
+
+ /* 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);
+ }
+
+ }
+ sta->supp_rates = rates;
+
+ rate_control_rate_init(sta, local);
+
+ 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;
+ }
+ }
+
+ 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);
+
+ return 0;
+}
+
+
+static int ieee80211_ioctl_remove_sta(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) {
+ sta_info_put(sta);
+ sta_info_free(sta, 0);
+ }
+
+ return sta ? 0 : -ENOENT;
+}
+
+
+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;
+
+ return 0;
+}
+
+
+static int ieee80211_ioctl_get_info_sta(struct net_device *dev,
+ struct prism2_hostapd_param *param)
+{
+ 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;
+
+ 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;
+ }
+
+ 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)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
+
+ 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);
+ }
+
+ 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;
+
+ }
+ }
+ kfree(keyconf);
+
+ return rc;
+}
+
+
+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)
+{
+ 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;
+
+ 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];
+
+ /* 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. */
+ } else {
+ set_tx_key = 0;
+ if (idx != 0) {
+ 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) {
+ 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;
+ }
+
+ /* 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;
+ }
+
+ 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;
+ }
+
+ 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;
+ }
+ }
+ }
+
+ 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;
+ }
+
+ /* 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;
+ }
+ }
+
+ if (set_tx_key || sdata->default_key == old_key) {
+ ieee80211_debugfs_key_remove_default(sdata);
+ sdata->default_key = NULL;
+ }
+ ieee80211_debugfs_key_remove(old_key);
+ if (sta)
+ sta->key = key;
+ 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;
+ }
+ }
+
+ 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 (sta)
+ sta_info_put(sta);
+
+ return 0;
+
+err_free:
+ ieee80211_key_free(key);
+err_out:
+ if (sta)
+ sta_info_put(sta);
+ return ret;
+}
+
+
+static int ieee80211_ioctl_set_encryption(struct net_device *dev,
+ struct prism2_hostapd_param *param,
+ int param_len)
+{
+ int alg;
+
+ param->u.crypt.err = 0;
+ param->u.crypt.alg[HOSTAP_CRYPT_ALG_NAME_LEN - 1] = '\0';
+
+ 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;
+ }
+
+ 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;
+ }
+
+ 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);
+}
+
+
+static int ieee80211_ioctl_get_encryption(struct net_device *dev,
+ struct prism2_hostapd_param *param,
+ int param_len)
+{
+ 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;
+ 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 (sta)
+ sta_info_put(sta);
+
+ return ret;
+}
+
+
+#ifdef CONFIG_HOSTAPD_WPA_TESTING
+static int ieee80211_ioctl_wpa_trigger(struct net_device *dev,
+ struct prism2_hostapd_param *param)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
+
+ if (is_broadcast_ether_addr(param->sta_addr)) {
+ local->wpa_trigger = param->u.wpa_trigger.trigger;
+ 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;
+}
+#endif /* CONFIG_HOSTAPD_WPA_TESTING */
+
+
+static int ieee80211_ioctl_set_rate_sets(struct net_device *dev,
+ struct prism2_hostapd_param *param,
+ int param_len)
+{
+ 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;
+
+ if (num_supp == 0) {
+ kfree(supp);
+ supp = NULL;
+ }
+
+ if (num_basic == 0) {
+ kfree(basic);
+ basic = NULL;
+ }
+
+ prev = local->supp_rates[mode];
+ local->supp_rates[mode] = supp;
+ kfree(prev);
+
+ prev = local->basic_rates[mode];
+ local->basic_rates[mode] = basic;
+ kfree(prev);
+
+ /* 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;
+}
+
+
+struct ieee80211_channel_range {
+ short start_freq;
+ short end_freq;
+ unsigned char power_level;
+ unsigned char antenna_max;
+};
+
+static const struct ieee80211_channel_range ieee80211_fcc_channels[] = {
+ { 2412, 2462, 27, 6 } /* IEEE 802.11b/g, channels 1..11 */,
+ { 5180, 5240, 17, 6 } /* IEEE 802.11a, channels 36..48 */,
+ { 5260, 5320, 23, 6 } /* IEEE 802.11a, channels 52..64 */,
+ { 5745, 5825, 30, 6 } /* IEEE 802.11a, channels 149..165, outdoor */,
+ { 0 }
+};
+
+static const struct ieee80211_channel_range ieee80211_mkk_channels[] = {
+ { 2412, 2472, 20, 6 } /* IEEE 802.11b/g, channels 1..13 */,
+ { 5170, 5240, 20, 6 } /* IEEE 802.11a, channels 34..48 */,
+ { 5260, 5320, 20, 6 } /* IEEE 802.11a, channels 52..64 */,
+ { 0 }
+};
+
+
+static const struct ieee80211_channel_range *channel_range =
+ ieee80211_fcc_channels;
+
+
+static void ieee80211_unmask_channel(struct net_device *dev, int mode,
+ struct ieee80211_channel *chan)
+{
+ int i;
+
+ 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) {
+ if (ieee80211_regdom == 64 && !ieee80211_japan_5ghz &&
+ chan->freq >= 5260 && chan->freq <= 5320) {
+ /*
+ * Skip new channels in Japan since the
+ * firmware was not marked having been upgraded
+ * by the vendor.
+ */
+ continue;
+ }
+
+ if (ieee80211_regdom == 0x10 &&
+ (chan->freq == 5190 || chan->freq == 5210 ||
+ chan->freq == 5230)) {
+ /* Skip MKK channels when in FCC domain. */
+ continue;
+ }
+
+ chan->flag |= IEEE80211_CHAN_W_SCAN |
+ IEEE80211_CHAN_W_ACTIVE_SCAN |
+ IEEE80211_CHAN_W_IBSS;
+ chan->power_level = r->power_level;
+ chan->antenna_max = r->antenna_max;
+
+ if (ieee80211_regdom == 64 &&
+ (chan->freq == 5170 || chan->freq == 5190 ||
+ chan->freq == 5210 || chan->freq == 5230)) {
+ /*
+ * New regulatory rules in Japan have backwards
+ * compatibility with old channels in 5.15-5.25
+ * GHz band, but the station is not allowed to
+ * use active scan on these old channels.
+ */
+ chan->flag &= ~IEEE80211_CHAN_W_ACTIVE_SCAN;
+ }
+
+ if (ieee80211_regdom == 64 &&
+ (chan->freq == 5260 || chan->freq == 5280 ||
+ chan->freq == 5300 || chan->freq == 5320)) {
+ /*
+ * IBSS is not allowed on 5.25-5.35 GHz band
+ * due to radar detection requirements.
+ */
+ chan->flag &= ~IEEE80211_CHAN_W_IBSS;
+ }
+
+ break;
+ }
+ }
+}
+
+
+static int ieee80211_unmask_channels(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hw_mode *mode;
+ int c;
+
+ list_for_each_entry(mode, &local->modes_list, list) {
+ for (c = 0; c < mode->num_channels; c++) {
+ ieee80211_unmask_channel(dev, mode->mode,
+ &mode->channels[c]);
+ }
+ }
+ return 0;
+}
+
+
+int ieee80211_init_client(struct net_device *dev)
+{
+ if (ieee80211_regdom == 0x40)
+ channel_range = ieee80211_mkk_channels;
+ ieee80211_unmask_channels(dev);
+ 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,
+ 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 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;
+ return 0;
+ }
+
+ 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;
+ }
+
+ return ret;
+}
+
+
+static int ieee80211_ioctl_get_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 *param = (int *) extra;
+ int ret = 0;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ switch (*param) {
+ case PRISM2_PARAM_BEACON_INT:
+ *param = local->hw.conf.beacon_int;
+ break;
+
+ case PRISM2_PARAM_AP_BRIDGE_PACKETS:
+ *param = local->bridge_packets;
+ break;
+
+ 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;
+
+ case PRISM2_PARAM_DTIM_PERIOD:
+ if (sdata->type != IEEE80211_IF_TYPE_AP)
+ ret = -ENOENT;
+ else
+ *param = sdata->u.ap.dtim_period;
+ break;
+
+ case PRISM2_PARAM_IEEE_802_1X:
+ *param = sdata->ieee802_1x;
+ break;
+
+ case PRISM2_PARAM_ANTSEL_TX:
+ *param = local->hw.conf.antenna_sel_tx;
+ break;
+
+ case PRISM2_PARAM_ANTSEL_RX:
+ *param = local->hw.conf.antenna_sel_rx;
+ break;
+
+ case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
+ *param = local->cts_protect_erp_frames;
+ break;
+
+ case PRISM2_PARAM_DROP_UNENCRYPTED:
+ *param = sdata->drop_unencrypted;
+ break;
+
+ case PRISM2_PARAM_PREAMBLE:
+ *param = local->short_preamble;
+ break;
+
+ 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;
+
+ case PRISM2_PARAM_NEXT_MODE:
+ *param = local->next_mode;
+ break;
+
+ case PRISM2_PARAM_ANTENNA_MODE:
+ *param = local->hw.conf.antenna_mode;
+ break;
+
+ case PRISM2_PARAM_BROADCAST_SSID:
+ *param = !!(local->hw.conf.flags & IEEE80211_CONF_SSID_HIDDEN);
+ break;
+
+ case PRISM2_PARAM_STA_ANTENNA_SEL:
+ *param = local->sta_antenna_sel;
+ break;
+
+ 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;
+
+ case PRISM2_PARAM_TX_POWER_REDUCTION:
+ *param = local->hw.conf.tx_power_reduction;
+ break;
+
+ case PRISM2_PARAM_EAPOL:
+ *param = sdata->eapol;
+ break;
+
+ case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
+ *param = local->key_tx_rx_threshold;
+ break;
+
+ 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;
+
+ case PRISM2_PARAM_DEFAULT_WEP_ONLY:
+ *param = local->default_wep_only;
+ break;
+
+ case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
+ *param = local->wifi_wme_noack_test;
+ break;
+
+ case PRISM2_PARAM_ALLOW_BROADCAST_ALWAYS:
+ *param = local->allow_broadcast_always;
+ break;
+
+ case PRISM2_PARAM_SCAN_FLAGS:
+ *param = local->scan_flags;
+ break;
+
+ case PRISM2_PARAM_HW_MODES:
+ *param = local->enabled_modes;
+ break;
+
+ case PRISM2_PARAM_CREATE_IBSS:
+ if (sdata->type != IEEE80211_IF_TYPE_IBSS)
+ ret = -EINVAL;
+ else
+ *param = !!sdata->u.sta.create_ibss;
+ break;
+
+ 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;
+
+ 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;
+
+ default:
+ ret = -EOPNOTSUPP;
+ break;
+ }
+
+ return ret;
+}
+
+static int ieee80211_ioctl_siwmlme(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct iw_mlme *mlme = (struct iw_mlme *) extra;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type != IEEE80211_IF_TYPE_STA &&
+ sdata->type != IEEE80211_IF_TYPE_IBSS)
+ return -EINVAL;
+
+ switch (mlme->cmd) {
+ case IW_MLME_DEAUTH:
+ /* TODO: mlme->addr.sa_data */
+ return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
+ case IW_MLME_DISASSOC:
+ /* TODO: mlme->addr.sa_data */
+ return ieee80211_sta_disassociate(dev, mlme->reason_code);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+
+static int ieee80211_ioctl_siwencode(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *erq, char *keybuf)
+{
+ struct ieee80211_sub_if_data *sdata;
+ int idx, i, alg = ALG_WEP;
+ u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ idx = erq->flags & IW_ENCODE_INDEX;
+ if (idx == 0) {
+ if (sdata->default_key)
+ for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
+ if (sdata->default_key == sdata->keys[i]) {
+ idx = i;
+ break;
+ }
+ }
+ } else if (idx < 1 || idx > 4)
+ return -EINVAL;
+ else
+ idx--;
+
+ if (erq->flags & IW_ENCODE_DISABLED)
+ alg = ALG_NONE;
+ 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);
+ }
+ return 0;
+ }
+
+ return ieee80211_set_encryption(
+ dev, bcaddr,
+ idx, alg,
+ !sdata->default_key,
+ NULL, keybuf, erq->length);
+}
+
+
+static int ieee80211_ioctl_giwencode(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *erq, char *key)
+{
+ struct ieee80211_sub_if_data *sdata;
+ int idx, i;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ idx = erq->flags & IW_ENCODE_INDEX;
+ if (idx < 1 || idx > 4) {
+ idx = -1;
+ if (!sdata->default_key)
+ idx = 0;
+ else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
+ if (sdata->default_key == sdata->keys[i]) {
+ idx = i;
+ break;
+ }
+ }
+ if (idx < 0)
+ return -EINVAL;
+ } else
+ idx--;
+
+ erq->flags = idx + 1;
+
+ if (!sdata->keys[idx]) {
+ erq->length = 0;
+ erq->flags |= IW_ENCODE_DISABLED;
+ return 0;
+ }
+
+ memcpy(key, sdata->keys[idx]->key,
+ min((int)erq->length, sdata->keys[idx]->keylen));
+ erq->length = sdata->keys[idx]->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)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int ret = 0;
+
+ switch (data->flags & IW_AUTH_INDEX) {
+ case IW_AUTH_WPA_VERSION:
+ case IW_AUTH_CIPHER_PAIRWISE:
+ case IW_AUTH_CIPHER_GROUP:
+ case IW_AUTH_WPA_ENABLED:
+ case IW_AUTH_RX_UNENCRYPTED_EAPOL:
+ break;
+ case IW_AUTH_KEY_MGMT:
+ if (sdata->type != IEEE80211_IF_TYPE_STA)
+ 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.
+ */
+ 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;
+ }
+ }
+ break;
+ case IW_AUTH_80211_AUTH_ALG:
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS)
+ sdata->u.sta.auth_algs = data->value;
+ else
+ ret = -EOPNOTSUPP;
+ break;
+ case IW_AUTH_PRIVACY_INVOKED:
+ if (local->ops->set_privacy_invoked)
+ ret = local->ops->set_privacy_invoked(
+ local_to_hw(local), data->value);
+ break;
+ default:
+ ret = -EOPNOTSUPP;
+ break;
+ }
+ return ret;
+}
+
+/* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
+static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct iw_statistics *wstats = &local->wstats;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct sta_info *sta = NULL;
+
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS)
+ sta = sta_info_get(local, sdata->u.sta.bssid);
+ if (!sta) {
+ wstats->discard.fragment = 0;
+ wstats->discard.misc = 0;
+ wstats->qual.qual = 0;
+ wstats->qual.level = 0;
+ wstats->qual.noise = 0;
+ wstats->qual.updated = IW_QUAL_ALL_INVALID;
+ } else {
+ wstats->qual.level = sta->last_rssi;
+ wstats->qual.qual = sta->last_signal;
+ wstats->qual.noise = sta->last_noise;
+ wstats->qual.updated = local->wstats_flags;
+ sta_info_put(sta);
+ }
+ return wstats;
+}
+
+static int ieee80211_ioctl_giwauth(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *data, char *extra)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int ret = 0;
+
+ switch (data->flags & IW_AUTH_INDEX) {
+ case IW_AUTH_80211_AUTH_ALG:
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS)
+ data->value = sdata->u.sta.auth_algs;
+ else
+ ret = -EOPNOTSUPP;
+ break;
+ default:
+ ret = -EOPNOTSUPP;
+ break;
+ }
+ return ret;
+}
+
+
+static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *erq, char *extra)
+{
+ 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;
+
+ switch (ext->alg) {
+ case IW_ENCODE_ALG_NONE:
+ alg = ALG_NONE;
+ break;
+ case IW_ENCODE_ALG_WEP:
+ alg = ALG_WEP;
+ break;
+ case IW_ENCODE_ALG_TKIP:
+ alg = ALG_TKIP;
+ break;
+ case IW_ENCODE_ALG_CCMP:
+ alg = ALG_CCMP;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ if (erq->flags & IW_ENCODE_DISABLED)
+ alg = ALG_NONE;
+
+ idx = erq->flags & IW_ENCODE_INDEX;
+ if (idx < 1 || idx > 4) {
+ idx = -1;
+ if (!sdata->default_key)
+ idx = 0;
+ else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
+ if (sdata->default_key == sdata->keys[i]) {
+ idx = i;
+ break;
+ }
+ }
+ if (idx < 0)
+ return -EINVAL;
+ } else
+ idx--;
+
+ return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
+ 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;
+}
+
+
+/* Structures to export the Wireless Handlers */
+
+static const iw_handler ieee80211_handler[] =
+{
+ (iw_handler) NULL, /* SIOCSIWCOMMIT */
+ (iw_handler) ieee80211_ioctl_giwname, /* SIOCGIWNAME */
+ (iw_handler) NULL, /* SIOCSIWNWID */
+ (iw_handler) NULL, /* SIOCGIWNWID */
+ (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */
+ (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */
+ (iw_handler) ieee80211_ioctl_siwmode, /* SIOCSIWMODE */
+ (iw_handler) ieee80211_ioctl_giwmode, /* SIOCGIWMODE */
+ (iw_handler) NULL, /* SIOCSIWSENS */
+ (iw_handler) NULL, /* SIOCGIWSENS */
+ (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
+ (iw_handler) ieee80211_ioctl_giwrange, /* SIOCGIWRANGE */
+ (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
+ (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) ieee80211_ioctl_siwap, /* SIOCSIWAP */
+ (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
+ (iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */
+ (iw_handler) NULL, /* SIOCGIWAPLIST */
+ (iw_handler) ieee80211_ioctl_siwscan, /* SIOCSIWSCAN */
+ (iw_handler) ieee80211_ioctl_giwscan, /* SIOCGIWSCAN */
+ (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */
+ (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */
+ (iw_handler) NULL, /* SIOCSIWNICKN */
+ (iw_handler) NULL, /* SIOCGIWNICKN */
+ (iw_handler) NULL, /* -- hole -- */
+ (iw_handler) NULL, /* -- hole -- */
+ (iw_handler) NULL, /* 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_siwretry, /* SIOCSIWRETRY */
+ (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */
+ (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */
+ (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */
+ (iw_handler) NULL, /* SIOCSIWPOWER */
+ (iw_handler) NULL, /* SIOCGIWPOWER */
+ (iw_handler) NULL, /* -- hole -- */
+ (iw_handler) NULL, /* -- hole -- */
+ (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */
+ (iw_handler) NULL, /* SIOCGIWGENIE */
+ (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */
+ (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */
+ (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */
+ (iw_handler) NULL, /* SIOCGIWENCODEEXT */
+ (iw_handler) NULL, /* SIOCSIWPMKSA */
+ (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,
+};
--- /dev/null
+/*
+ * 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 IEEE80211_KEY_H
+#define IEEE80211_KEY_H
+
+#include <linux/types.h>
+#include <linux/kref.h>
+#include <linux/crypto.h>
+#include <net/mac80211.h>
+
+/* ALG_TKIP
+ * struct ieee80211_key::key is encoded as a 256-bit (32 byte) data block:
+ * Temporal Encryption Key (128 bits)
+ * Temporal Authenticator Tx MIC Key (64 bits)
+ * Temporal Authenticator Rx MIC Key (64 bits)
+ */
+
+#define WEP_IV_LEN 4
+#define WEP_ICV_LEN 4
+
+#define ALG_TKIP_KEY_LEN 32
+/* Starting offsets for each key */
+#define ALG_TKIP_TEMP_ENCR_KEY 0
+#define ALG_TKIP_TEMP_AUTH_TX_MIC_KEY 16
+#define ALG_TKIP_TEMP_AUTH_RX_MIC_KEY 24
+#define TKIP_IV_LEN 8
+#define TKIP_ICV_LEN 4
+
+#define ALG_CCMP_KEY_LEN 16
+#define CCMP_HDR_LEN 8
+#define CCMP_MIC_LEN 8
+#define CCMP_TK_LEN 16
+#define CCMP_PN_LEN 6
+
+#define NUM_RX_DATA_QUEUES 17
+
+struct ieee80211_key {
+ struct kref kref;
+
+ int hw_key_idx; /* filled and used by low-level driver */
+ ieee80211_key_alg alg;
+ union {
+ struct {
+ /* last used TSC */
+ u32 iv32;
+ u16 iv16;
+ u16 p1k[5];
+ int tx_initialized;
+
+ /* last received RSC */
+ u32 iv32_rx[NUM_RX_DATA_QUEUES];
+ u16 iv16_rx[NUM_RX_DATA_QUEUES];
+ u16 p1k_rx[NUM_RX_DATA_QUEUES][5];
+ int rx_initialized[NUM_RX_DATA_QUEUES];
+ } tkip;
+ struct {
+ u8 tx_pn[6];
+ u8 rx_pn[NUM_RX_DATA_QUEUES][6];
+ struct crypto_cipher *tfm;
+ u32 replays; /* dot11RSNAStatsCCMPReplays */
+ /* scratch buffers for virt_to_page() (crypto API) */
+#ifndef AES_BLOCK_LEN
+#define AES_BLOCK_LEN 16
+#endif
+ u8 tx_crypto_buf[6 * AES_BLOCK_LEN];
+ 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 */
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct {
+ struct dentry *stalink;
+ struct dentry *dir;
+ struct dentry *keylen;
+ struct dentry *force_sw_encrypt;
+ struct dentry *keyidx;
+ struct dentry *hw_key_idx;
+ struct dentry *tx_rx_count;
+ struct dentry *algorithm;
+ struct dentry *tx_spec;
+ struct dentry *rx_spec;
+ struct dentry *replays;
+ struct dentry *key;
+ } debugfs;
+#endif
+
+ u8 key[0];
+};
+
+#endif /* IEEE80211_KEY_H */
--- /dev/null
+/*
+ * Copyright 2006, 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.
+ */
+
+/* just for IFNAMSIZ */
+#include <linux/if.h>
+#include "ieee80211_led.h"
+
+void ieee80211_led_rx(struct ieee80211_local *local)
+{
+ if (unlikely(!local->rx_led))
+ return;
+ if (local->rx_led_counter++ % 2 == 0)
+ led_trigger_event(local->rx_led, LED_OFF);
+ else
+ led_trigger_event(local->rx_led, LED_FULL);
+}
+
+/* q is 1 if a packet was enqueued, 0 if it has been transmitted */
+void ieee80211_led_tx(struct ieee80211_local *local, int q)
+{
+ if (unlikely(!local->tx_led))
+ return;
+ /* not sure how this is supposed to work ... */
+ local->tx_led_counter += 2*q-1;
+ if (local->tx_led_counter % 2 == 0)
+ led_trigger_event(local->tx_led, LED_OFF);
+ else
+ led_trigger_event(local->tx_led, LED_FULL);
+}
+
+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;
+ }
+
+ 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;
+ }
+}
+
+void ieee80211_led_exit(struct ieee80211_local *local)
+{
+ if (local->tx_led) {
+ led_trigger_unregister(local->tx_led);
+ kfree(local->tx_led);
+ }
+ if (local->rx_led) {
+ led_trigger_unregister(local->rx_led);
+ kfree(local->rx_led);
+ }
+}
+
+char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ if (local->tx_led)
+ return local->tx_led_name;
+ return NULL;
+}
+EXPORT_SYMBOL(__ieee80211_get_tx_led_name);
+
+char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ if (local->rx_led)
+ return local->rx_led_name;
+ return NULL;
+}
+EXPORT_SYMBOL(__ieee80211_get_rx_led_name);
--- /dev/null
+/*
+ * Copyright 2006, 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/list.h>
+#include <linux/spinlock.h>
+#include <linux/leds.h>
+#include "ieee80211_i.h"
+
+#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_init(struct ieee80211_local *local);
+extern void ieee80211_led_exit(struct ieee80211_local *local);
+#else
+static inline void ieee80211_led_rx(struct ieee80211_local *local)
+{
+}
+static inline void ieee80211_led_tx(struct ieee80211_local *local, int q)
+{
+}
+static inline void ieee80211_led_init(struct ieee80211_local *local)
+{
+}
+static inline void ieee80211_led_exit(struct ieee80211_local *local)
+{
+}
+#endif
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright (c) 2006 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/kernel.h>
+#include "ieee80211_rate.h"
+#include "ieee80211_i.h"
+
+struct rate_control_alg {
+ struct list_head list;
+ struct rate_control_ops *ops;
+};
+
+static LIST_HEAD(rate_ctrl_algs);
+static DEFINE_MUTEX(rate_ctrl_mutex);
+
+int ieee80211_rate_control_register(struct rate_control_ops *ops)
+{
+ struct rate_control_alg *alg;
+
+ alg = kmalloc(sizeof(*alg), GFP_KERNEL);
+ if (alg == NULL) {
+ return -ENOMEM;
+ }
+ memset(alg, 0, sizeof(*alg));
+ alg->ops = ops;
+
+ mutex_lock(&rate_ctrl_mutex);
+ list_add_tail(&alg->list, &rate_ctrl_algs);
+ mutex_unlock(&rate_ctrl_mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_rate_control_register);
+
+void ieee80211_rate_control_unregister(struct rate_control_ops *ops)
+{
+ struct rate_control_alg *alg;
+
+ mutex_lock(&rate_ctrl_mutex);
+ list_for_each_entry(alg, &rate_ctrl_algs, list) {
+ if (alg->ops == ops) {
+ list_del(&alg->list);
+ break;
+ }
+ }
+ mutex_unlock(&rate_ctrl_mutex);
+ kfree(alg);
+}
+EXPORT_SYMBOL(ieee80211_rate_control_unregister);
+
+static struct rate_control_ops *
+ieee80211_try_rate_control_ops_get(const char *name)
+{
+ struct rate_control_alg *alg;
+ struct rate_control_ops *ops = NULL;
+
+ mutex_lock(&rate_ctrl_mutex);
+ list_for_each_entry(alg, &rate_ctrl_algs, list) {
+ if (!name || !strcmp(alg->ops->name, name))
+ if (try_module_get(alg->ops->module)) {
+ ops = alg->ops;
+ break;
+ }
+ }
+ mutex_unlock(&rate_ctrl_mutex);
+ return ops;
+}
+
+/* Get the rate control algorithm. If `name' is NULL, get the first
+ * available algorithm. */
+static struct rate_control_ops *
+ieee80211_rate_control_ops_get(const char *name)
+{
+ struct rate_control_ops *ops;
+
+ ops = ieee80211_try_rate_control_ops_get(name);
+ if (!ops) {
+ request_module("rc80211_%s", name ? name : "default");
+ ops = ieee80211_try_rate_control_ops_get(name);
+ }
+ return ops;
+}
+
+static void ieee80211_rate_control_ops_put(struct rate_control_ops *ops)
+{
+ module_put(ops->module);
+}
+
+struct rate_control_ref *rate_control_alloc(const char *name,
+ struct ieee80211_local *local)
+{
+ struct rate_control_ref *ref;
+
+ ref = kmalloc(sizeof(struct rate_control_ref), GFP_KERNEL);
+ if (!ref)
+ goto fail_ref;
+ kref_init(&ref->kref);
+ ref->ops = ieee80211_rate_control_ops_get(name);
+ if (!ref->ops)
+ goto fail_ops;
+ ref->priv = ref->ops->alloc(local);
+ if (!ref->priv)
+ goto fail_priv;
+ return ref;
+
+fail_priv:
+ ieee80211_rate_control_ops_put(ref->ops);
+fail_ops:
+ kfree(ref);
+fail_ref:
+ return NULL;
+}
+
+static void rate_control_release(struct kref *kref)
+{
+ struct rate_control_ref *ctrl_ref;
+
+ ctrl_ref = container_of(kref, struct rate_control_ref, kref);
+ ctrl_ref->ops->free(ctrl_ref->priv);
+ ieee80211_rate_control_ops_put(ctrl_ref->ops);
+ kfree(ctrl_ref);
+}
+
+struct rate_control_ref *rate_control_get(struct rate_control_ref *ref)
+{
+ kref_get(&ref->kref);
+ return ref;
+}
+
+void rate_control_put(struct rate_control_ref *ref)
+{
+ kref_put(&ref->kref, rate_control_release);
+}
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005, Devicescape Software, Inc.
+ * Copyright (c) 2006 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.
+ */
+
+#ifndef IEEE80211_RATE_H
+#define IEEE80211_RATE_H
+
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/types.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "sta_info.h"
+
+#define RATE_CONTROL_NUM_DOWN 20
+#define RATE_CONTROL_NUM_UP 15
+
+
+struct rate_control_extra {
+ /* values from rate_control_get_rate() to the caller: */
+ struct ieee80211_rate *probe; /* probe with this rate, or NULL for no
+ * probing */
+ struct ieee80211_rate *nonerp;
+
+ /* 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;
+};
+
+
+struct rate_control_ops {
+ struct module *module;
+ const char *name;
+ void (*tx_status)(void *priv, struct net_device *dev,
+ struct sk_buff *skb,
+ struct ieee80211_tx_status *status);
+ struct ieee80211_rate *(*get_rate)(void *priv, struct net_device *dev,
+ struct sk_buff *skb,
+ struct rate_control_extra *extra);
+ void (*rate_init)(void *priv, void *priv_sta,
+ struct ieee80211_local *local, struct sta_info *sta);
+ void (*clear)(void *priv);
+
+ void *(*alloc)(struct ieee80211_local *local);
+ void (*free)(void *priv);
+ void *(*alloc_sta)(void *priv, gfp_t gfp);
+ void (*free_sta)(void *priv, void *priv_sta);
+
+ int (*add_attrs)(void *priv, struct kobject *kobj);
+ void (*remove_attrs)(void *priv, struct kobject *kobj);
+ void (*add_sta_debugfs)(void *priv, void *priv_sta,
+ struct dentry *dir);
+ void (*remove_sta_debugfs)(void *priv, void *priv_sta);
+};
+
+struct rate_control_ref {
+ struct rate_control_ops *ops;
+ void *priv;
+ struct kref kref;
+};
+
+int ieee80211_rate_control_register(struct rate_control_ops *ops);
+void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
+
+/* Get a reference to the rate control algorithm. If `name' is NULL, get the
+ * first available algorithm. */
+struct rate_control_ref *rate_control_alloc(const char *name,
+ struct ieee80211_local *local);
+struct rate_control_ref *rate_control_get(struct rate_control_ref *ref);
+void rate_control_put(struct rate_control_ref *ref);
+
+static inline void rate_control_tx_status(struct ieee80211_local *local,
+ struct net_device *dev,
+ struct sk_buff *skb,
+ struct ieee80211_tx_status *status)
+{
+ struct rate_control_ref *ref = local->rate_ctrl;
+ ref->ops->tx_status(ref->priv, dev, skb, status);
+}
+
+
+static inline struct ieee80211_rate *
+rate_control_get_rate(struct ieee80211_local *local, struct net_device *dev,
+ struct sk_buff *skb, struct rate_control_extra *extra)
+{
+ struct rate_control_ref *ref = local->rate_ctrl;
+ return ref->ops->get_rate(ref->priv, dev, skb, extra);
+}
+
+
+static inline void rate_control_rate_init(struct sta_info *sta,
+ struct ieee80211_local *local)
+{
+ struct rate_control_ref *ref = sta->rate_ctrl;
+ ref->ops->rate_init(ref->priv, sta->rate_ctrl_priv, local, sta);
+}
+
+
+static inline void rate_control_clear(struct ieee80211_local *local)
+{
+ struct rate_control_ref *ref = local->rate_ctrl;
+ ref->ops->clear(ref->priv);
+}
+
+static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
+ gfp_t gfp)
+{
+ return ref->ops->alloc_sta(ref->priv, gfp);
+}
+
+static inline void rate_control_free_sta(struct rate_control_ref *ref,
+ void *priv)
+{
+ ref->ops->free_sta(ref->priv, priv);
+}
+
+static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
+{
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct rate_control_ref *ref = sta->rate_ctrl;
+ if (sta->debugfs.dir && ref->ops->add_sta_debugfs)
+ ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv,
+ sta->debugfs.dir);
+#endif
+}
+
+static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
+{
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct rate_control_ref *ref = sta->rate_ctrl;
+ if (ref->ops->remove_sta_debugfs)
+ ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv);
+#endif
+}
+
+#endif /* IEEE80211_RATE_H */
--- /dev/null
+/*
+ * BSS client mode implementation
+ * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright 2004, Instant802 Networks, Inc.
+ * Copyright 2005, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007, 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.
+ */
+
+/* TODO:
+ * BSS table: use <BSSID,SSID> as the key to support multi-SSID APs
+ * order BSS list by RSSI(?) ("quality of AP")
+ * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE,
+ * SSID)
+ */
+#include <linux/delay.h>
+#include <linux/if_ether.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/if_arp.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"
+
+#define IEEE80211_AUTH_TIMEOUT (HZ / 5)
+#define IEEE80211_AUTH_MAX_TRIES 3
+#define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
+#define IEEE80211_ASSOC_MAX_TRIES 3
+#define IEEE80211_MONITORING_INTERVAL (2 * HZ)
+#define IEEE80211_PROBE_INTERVAL (60 * HZ)
+#define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
+#define IEEE80211_SCAN_INTERVAL (2 * HZ)
+#define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ)
+#define IEEE80211_IBSS_JOIN_TIMEOUT (20 * HZ)
+
+#define IEEE80211_PROBE_DELAY (HZ / 33)
+#define IEEE80211_CHANNEL_TIME (HZ / 33)
+#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5)
+#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
+#define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
+#define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ)
+
+#define IEEE80211_IBSS_MAX_STA_ENTRIES 128
+
+
+#define IEEE80211_FC(type, stype) cpu_to_le16(type | stype)
+
+#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 *
+ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid);
+static void ieee80211_rx_bss_put(struct net_device *dev,
+ struct ieee80211_sta_bss *bss);
+static int ieee80211_sta_find_ibss(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta);
+static int ieee80211_sta_wep_configured(struct net_device *dev);
+static int ieee80211_sta_start_scan(struct net_device *dev,
+ u8 *ssid, size_t ssid_len);
+static int ieee80211_sta_config_auth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta);
+
+
+/* Parsed Information Elements */
+struct ieee802_11_elems {
+ 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;
+ u8 wmm_param_len;
+ u8 *tspec;
+ u8 tspec_len;
+};
+
+typedef enum { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 } ParseRes;
+
+
+static ParseRes ieee802_11_parse_elems(u8 *start, size_t len,
+ struct ieee802_11_elems *elems)
+{
+ size_t left = len;
+ u8 *pos = start;
+ int unknown = 0;
+
+ memset(elems, 0, sizeof(*elems));
+
+ while (left >= 2) {
+ u8 id, elen;
+
+ id = *pos++;
+ elen = *pos++;
+ left -= 2;
+
+ if (elen > left) {
+#if 0
+ if (net_ratelimit())
+ printk(KERN_DEBUG "IEEE 802.11 element parse "
+ "failed (id=%d elen=%d left=%d)\n",
+ id, elen, left);
+#endif
+ return ParseFailed;
+ }
+
+ switch (id) {
+ case WLAN_EID_SSID:
+ elems->ssid = pos;
+ elems->ssid_len = elen;
+ break;
+ case WLAN_EID_SUPP_RATES:
+ elems->supp_rates = pos;
+ elems->supp_rates_len = elen;
+ break;
+ case WLAN_EID_FH_PARAMS:
+ elems->fh_params = pos;
+ elems->fh_params_len = elen;
+ break;
+ case WLAN_EID_DS_PARAMS:
+ elems->ds_params = pos;
+ elems->ds_params_len = elen;
+ break;
+ case WLAN_EID_CF_PARAMS:
+ elems->cf_params = pos;
+ elems->cf_params_len = elen;
+ break;
+ case WLAN_EID_TIM:
+ elems->tim = pos;
+ elems->tim_len = elen;
+ break;
+ case WLAN_EID_IBSS_PARAMS:
+ elems->ibss_params = pos;
+ elems->ibss_params_len = elen;
+ break;
+ case WLAN_EID_CHALLENGE:
+ elems->challenge = pos;
+ elems->challenge_len = elen;
+ break;
+ case WLAN_EID_WPA:
+ if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
+ pos[2] == 0xf2) {
+ /* Microsoft OUI (00:50:F2) */
+ if (pos[3] == WIFI_OUI_TYPE_WPA) {
+ /* 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:
+ elems->wmm_info = pos;
+ elems->wmm_info_len = elen;
+ break;
+ case WIFI_OUI_STYPE_WMM_PARAM:
+ 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;
+ }
+ }
+ }
+ break;
+ case WLAN_EID_RSN:
+ elems->rsn = pos;
+ elems->rsn_len = elen;
+ break;
+ case WLAN_EID_ERP_INFO:
+ elems->erp_info = pos;
+ elems->erp_info_len = elen;
+ break;
+ case WLAN_EID_EXT_SUPP_RATES:
+ 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 "
+ "unknown element (id=%d elen=%d)\n",
+ id, elen);
+#endif
+ unknown++;
+ break;
+ }
+
+ left -= elen;
+ pos += elen;
+ }
+
+ /* Do not trigger error if left == 1 as Apple Airport base stations
+ * send AssocResps that are one spurious byte too long. */
+
+ return unknown ? ParseUnknown : ParseOK;
+}
+
+
+
+
+static int ecw2cw(int ecw)
+{
+ int cw = 1;
+ while (ecw > 0) {
+ cw <<= 1;
+ ecw--;
+ }
+ return cw - 1;
+}
+
+static void ieee80211_sta_wmm_params(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ u8 *wmm_param, size_t wmm_param_len)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_tx_queue_params params;
+ size_t left;
+ int count;
+ u8 *pos;
+
+ if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1)
+ return;
+ count = wmm_param[6] & 0x0f;
+ if (count == ifsta->wmm_last_param_set)
+ return;
+ ifsta->wmm_last_param_set = count;
+
+ pos = wmm_param + 8;
+ left = wmm_param_len - 8;
+
+ memset(¶ms, 0, sizeof(params));
+
+ if (!local->ops->conf_tx)
+ return;
+
+ local->wmm_acm = 0;
+ for (; left >= 4; left -= 4, pos += 4) {
+ int aci = (pos[0] >> 5) & 0x03;
+ int acm = (pos[0] >> 4) & 0x01;
+ int queue;
+
+ switch (aci) {
+ case 1:
+ queue = IEEE80211_TX_QUEUE_DATA3;
+ if (acm) {
+ local->wmm_acm |= BIT(0) | BIT(3);
+ }
+ break;
+ case 2:
+ queue = IEEE80211_TX_QUEUE_DATA1;
+ if (acm) {
+ local->wmm_acm |= BIT(4) | BIT(5);
+ }
+ break;
+ case 3:
+ queue = IEEE80211_TX_QUEUE_DATA0;
+ if (acm) {
+ local->wmm_acm |= BIT(6) | BIT(7);
+ }
+ break;
+ case 0:
+ default:
+ queue = IEEE80211_TX_QUEUE_DATA2;
+ if (acm) {
+ local->wmm_acm |= BIT(1) | BIT(2);
+ }
+ break;
+ }
+
+ params.aifs = pos[0] & 0x0f;
+ params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4);
+ params.cw_min = ecw2cw(pos[1] & 0x0f);
+ /* TXOP is in units of 32 usec; burst_time in 0.1 ms */
+ params.burst_time = (pos[2] | (pos[3] << 8)) * 32 / 100;
+ printk(KERN_DEBUG "%s: WMM queue=%d aci=%d acm=%d aifs=%d "
+ "cWmin=%d cWmax=%d burst=%d\n",
+ dev->name, queue, aci, acm, params.aifs, params.cw_min,
+ params.cw_max, params.burst_time);
+ /* TODO: handle ACM (block TX, fallback to next lowest allowed
+ * AC for now) */
+ if (local->ops->conf_tx(local_to_hw(local), queue, ¶ms)) {
+ printk(KERN_DEBUG "%s: failed to set TX queue "
+ "parameters for queue %d\n", dev->name, queue);
+ }
+ }
+}
+
+
+static void ieee80211_sta_send_associnfo(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ char *buf;
+ size_t len;
+ int i;
+ union iwreq_data wrqu;
+
+ if (!ifsta->assocreq_ies && !ifsta->assocresp_ies)
+ return;
+
+ buf = kmalloc(50 + 2 * (ifsta->assocreq_ies_len +
+ ifsta->assocresp_ies_len), GFP_ATOMIC);
+ if (!buf)
+ return;
+
+ len = sprintf(buf, "ASSOCINFO(");
+ if (ifsta->assocreq_ies) {
+ len += sprintf(buf + len, "ReqIEs=");
+ for (i = 0; i < ifsta->assocreq_ies_len; i++) {
+ len += sprintf(buf + len, "%02x",
+ ifsta->assocreq_ies[i]);
+ }
+ }
+ if (ifsta->assocresp_ies) {
+ if (ifsta->assocreq_ies)
+ len += sprintf(buf + len, " ");
+ len += sprintf(buf + len, "RespIEs=");
+ for (i = 0; i < ifsta->assocresp_ies_len; i++) {
+ len += sprintf(buf + len, "%02x",
+ ifsta->assocresp_ies[i]);
+ }
+ }
+ len += sprintf(buf + len, ")");
+
+ if (len > IW_CUSTOM_MAX) {
+ len = sprintf(buf, "ASSOCRESPIE=");
+ for (i = 0; i < ifsta->assocresp_ies_len; i++) {
+ len += sprintf(buf + len, "%02x",
+ ifsta->assocresp_ies[i]);
+ }
+ }
+
+ memset(&wrqu, 0, sizeof(wrqu));
+ wrqu.data.length = len;
+ wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
+
+ kfree(buf);
+}
+
+
+static void ieee80211_set_associated(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta, int assoc)
+{
+ union iwreq_data wrqu;
+
+ if (ifsta->associated == assoc)
+ return;
+
+ ifsta->associated = assoc;
+
+ if (assoc) {
+ struct ieee80211_sub_if_data *sdata;
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type != IEEE80211_IF_TYPE_STA)
+ return;
+ netif_carrier_on(dev);
+ ifsta->prev_bssid_set = 1;
+ 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 {
+ netif_carrier_off(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;
+}
+
+static void ieee80211_set_disassoc(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta, int deauth)
+{
+ if (deauth)
+ ifsta->auth_tries = 0;
+ ifsta->assoc_tries = 0;
+ ieee80211_set_associated(dev, ifsta, 0);
+}
+
+static void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
+ int encrypt)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_tx_packet_data *pkt_data;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ skb->dev = sdata->local->mdev;
+ skb_set_mac_header(skb, 0);
+ skb_set_network_header(skb, 0);
+ skb_set_transport_header(skb, 0);
+
+ 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;
+
+ dev_queue_xmit(skb);
+}
+
+
+static void ieee80211_send_auth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ int transaction, u8 *extra, size_t extra_len,
+ int encrypt)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom +
+ sizeof(*mgmt) + 6 + extra_len);
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
+ "frame\n", dev->name);
+ return;
+ }
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6);
+ memset(mgmt, 0, 24 + 6);
+ mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_AUTH);
+ if (encrypt)
+ mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
+ memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
+ memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+ mgmt->u.auth.auth_alg = cpu_to_le16(ifsta->auth_alg);
+ mgmt->u.auth.auth_transaction = cpu_to_le16(transaction);
+ ifsta->auth_transaction = transaction + 1;
+ mgmt->u.auth.status_code = cpu_to_le16(0);
+ if (extra)
+ memcpy(skb_put(skb, extra_len), extra, extra_len);
+
+ ieee80211_sta_tx(dev, skb, encrypt);
+}
+
+
+static void ieee80211_authenticate(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ ifsta->auth_tries++;
+ if (ifsta->auth_tries > IEEE80211_AUTH_MAX_TRIES) {
+ printk(KERN_DEBUG "%s: authentication with AP " MAC_FMT
+ " timed out\n",
+ dev->name, MAC_ARG(ifsta->bssid));
+ ifsta->state = IEEE80211_DISABLED;
+ return;
+ }
+
+ ifsta->state = IEEE80211_AUTHENTICATE;
+ printk(KERN_DEBUG "%s: authenticate with AP " MAC_FMT "\n",
+ dev->name, MAC_ARG(ifsta->bssid));
+
+ ieee80211_send_auth(dev, ifsta, 1, NULL, 0, 0);
+
+ mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
+}
+
+
+static void ieee80211_send_assoc(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hw_mode *mode;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+ u8 *pos, *ies;
+ int i, len;
+ 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 +
+ ifsta->ssid_len);
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
+ "frame\n", dev->name);
+ return;
+ }
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ mode = local->oper_hw_mode;
+ capab = ifsta->capab;
+ if (mode->mode == MODE_IEEE80211G) {
+ capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME |
+ WLAN_CAPABILITY_SHORT_PREAMBLE;
+ }
+ bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
+ if (bss) {
+ if (bss->capability & WLAN_CAPABILITY_PRIVACY)
+ capab |= WLAN_CAPABILITY_PRIVACY;
+ if (bss->wmm_ie) {
+ wmm = 1;
+
+ ht_enabled = 1;
+ }
+ ieee80211_rx_bss_put(dev, bss);
+ }
+
+ 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);
+
+ if (ifsta->prev_bssid_set) {
+ skb_put(skb, 10);
+ mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_REASSOC_REQ);
+ mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab);
+ mgmt->u.reassoc_req.listen_interval = cpu_to_le16(1);
+ memcpy(mgmt->u.reassoc_req.current_ap, ifsta->prev_bssid,
+ ETH_ALEN);
+ } else {
+ skb_put(skb, 4);
+ mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_ASSOC_REQ);
+ mgmt->u.assoc_req.capab_info = cpu_to_le16(capab);
+ mgmt->u.assoc_req.listen_interval = cpu_to_le16(1);
+ }
+
+ /* SSID */
+ ies = pos = skb_put(skb, 2 + ifsta->ssid_len);
+ *pos++ = WLAN_EID_SSID;
+ *pos++ = ifsta->ssid_len;
+ memcpy(pos, ifsta->ssid, ifsta->ssid_len);
+
+ len = mode->num_rates;
+ if (len > 8)
+ len = 8;
+ pos = skb_put(skb, len + 2);
+ *pos++ = WLAN_EID_SUPP_RATES;
+ *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);
+ }
+
+ if (mode->num_rates > len) {
+ pos = skb_put(skb, mode->num_rates - len + 2);
+ *pos++ = WLAN_EID_EXT_SUPP_RATES;
+ *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);
+ }
+ }
+
+ if (ifsta->extra_ie) {
+ pos = skb_put(skb, ifsta->extra_ie_len);
+ memcpy(pos, ifsta->extra_ie, ifsta->extra_ie_len);
+ }
+
+ if (wmm && ifsta->wmm_enabled) {
+ pos = skb_put(skb, 9);
+ *pos++ = WLAN_EID_VENDOR_SPECIFIC;
+ *pos++ = 7; /* len */
+ *pos++ = 0x00; /* Microsoft OUI 00:50:F2 */
+ *pos++ = 0x50;
+ *pos++ = 0xf2;
+ *pos++ = 2; /* WME */
+ *pos++ = 0; /* WME info */
+ *pos++ = 1; /* WME ver */
+ *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);
+ if (ifsta->assocreq_ies)
+ memcpy(ifsta->assocreq_ies, ies, ifsta->assocreq_ies_len);
+
+ ieee80211_sta_tx(dev, skb, 0);
+}
+
+
+static void ieee80211_send_deauth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta, u16 reason)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer for deauth "
+ "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_DEAUTH);
+ skb_put(skb, 2);
+ mgmt->u.deauth.reason_code = cpu_to_le16(reason);
+
+ ieee80211_sta_tx(dev, skb, 0);
+}
+
+
+static void ieee80211_send_disassoc(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta, u16 reason)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer for disassoc "
+ "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_DISASSOC);
+ skb_put(skb, 2);
+ mgmt->u.disassoc.reason_code = cpu_to_le16(reason);
+
+ ieee80211_sta_tx(dev, skb, 0);
+}
+
+
+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);
+ u32 medium_time = tp->medium_time;
+ u8 index = ieee80211_ts_index(direction);
+
+ if (ifsta->ts_data[tsid][index].status == TS_STATUS_UNUSED) {
+ printk(KERN_DEBUG "%s: Tring 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));
+
+ SET_TSINFO_TSID(tp->ts_info, tsid);
+ SET_TSINFO_DIR(tp->ts_info, direction);
+ SET_TSINFO_POLICY(tp->ts_info, WLAN_TSINFO_EDCA);
+ SET_TSINFO_APSD(tp->ts_info, WLAN_TSINFO_PSB_LEGACY);
+ 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);
+ u32 medium_time = 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));
+
+ SET_TSINFO_TSID(tspec->ts_info, tsid);
+ SET_TSINFO_DIR(tspec->ts_info, direction);
+ SET_TSINFO_POLICY(tspec->ts_info, WLAN_TSINFO_EDCA);
+ SET_TSINFO_APSD(tspec->ts_info, WLAN_TSINFO_PSB_LEGACY);
+ 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, u32 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 = 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)
+ return 0;
+
+ bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
+ if (!bss)
+ return 0;
+
+ if (ieee80211_sta_wep_configured(dev) !=
+ !!(bss->capability & WLAN_CAPABILITY_PRIVACY))
+ res = 1;
+
+ ieee80211_rx_bss_put(dev, bss);
+
+ return res;
+}
+
+
+static void ieee80211_associate(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ ifsta->assoc_tries++;
+ if (ifsta->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
+ printk(KERN_DEBUG "%s: association with AP " MAC_FMT
+ " timed out\n",
+ dev->name, MAC_ARG(ifsta->bssid));
+ ifsta->state = IEEE80211_DISABLED;
+ return;
+ }
+
+ ifsta->state = IEEE80211_ASSOCIATE;
+ printk(KERN_DEBUG "%s: associate with AP " MAC_FMT "\n",
+ dev->name, MAC_ARG(ifsta->bssid));
+ if (ieee80211_privacy_mismatch(dev, ifsta)) {
+ printk(KERN_DEBUG "%s: mismatch in privacy configuration and "
+ "mixed-cell disabled - abort association\n", dev->name);
+ ifsta->state = IEEE80211_DISABLED;
+ return;
+ }
+
+ ieee80211_send_assoc(dev, ifsta);
+
+ mod_timer(&ifsta->timer, jiffies + IEEE80211_ASSOC_TIMEOUT);
+}
+
+
+static void ieee80211_associated(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
+ int disassoc;
+
+ /* TODO: start monitoring current AP signal quality and number of
+ * missed beacons. Scan other channels every now and then and search
+ * for better APs. */
+ /* TODO: remove expired BSSes */
+
+ ifsta->state = IEEE80211_ASSOCIATED;
+
+ sta = sta_info_get(local, ifsta->bssid);
+ if (!sta) {
+ printk(KERN_DEBUG "%s: No STA entry for own AP " MAC_FMT "\n",
+ dev->name, MAC_ARG(ifsta->bssid));
+ disassoc = 1;
+ } else {
+ disassoc = 0;
+ if (time_after(jiffies,
+ sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
+ if (ifsta->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 {
+ ieee80211_send_probe_req(dev, ifsta->bssid,
+ local->scan_ssid,
+ local->scan_ssid_len);
+ ifsta->probereq_poll = 1;
+ }
+ } else {
+ ifsta->probereq_poll = 0;
+ if (time_after(jiffies, ifsta->last_probe +
+ IEEE80211_PROBE_INTERVAL)) {
+ ifsta->last_probe = jiffies;
+ ieee80211_send_probe_req(dev, ifsta->bssid,
+ ifsta->ssid,
+ ifsta->ssid_len);
+ }
+ }
+ sta_info_put(sta);
+ }
+ if (disassoc) {
+ union iwreq_data wrqu;
+ memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
+ wrqu.ap_addr.sa_family = ARPHRD_ETHER;
+ wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
+ mod_timer(&ifsta->timer, jiffies +
+ IEEE80211_MONITORING_INTERVAL + 30 * HZ);
+ } else {
+ mod_timer(&ifsta->timer, jiffies +
+ IEEE80211_MONITORING_INTERVAL);
+ }
+}
+
+
+static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
+ u8 *ssid, size_t ssid_len)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hw_mode *mode;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+ u8 *pos, *supp_rates, *esupp_rates = NULL;
+ int i;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200);
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
+ "request\n", dev->name);
+ return;
+ }
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+ memset(mgmt, 0, 24);
+ mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_PROBE_REQ);
+ memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ if (dst) {
+ memcpy(mgmt->da, dst, ETH_ALEN);
+ memcpy(mgmt->bssid, dst, ETH_ALEN);
+ } else {
+ memset(mgmt->da, 0xff, ETH_ALEN);
+ memset(mgmt->bssid, 0xff, ETH_ALEN);
+ }
+ pos = skb_put(skb, 2 + ssid_len);
+ *pos++ = WLAN_EID_SSID;
+ *pos++ = ssid_len;
+ memcpy(pos, ssid, ssid_len);
+
+ 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 (mode->mode == MODE_ATHEROS_TURBO)
+ *pos = rate->rate / 10;
+ else
+ *pos = rate->rate / 5;
+ }
+
+ ieee80211_sta_tx(dev, skb, 0);
+}
+
+
+static int ieee80211_sta_wep_configured(struct net_device *dev)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (!sdata || !sdata->default_key ||
+ sdata->default_key->alg != ALG_WEP)
+ return 0;
+ return 1;
+}
+
+
+static void ieee80211_auth_completed(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ printk(KERN_DEBUG "%s: authenticated\n", dev->name);
+ ifsta->authenticated = 1;
+ ieee80211_associate(dev, ifsta);
+}
+
+
+static void ieee80211_auth_challenge(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len)
+{
+ u8 *pos;
+ struct ieee802_11_elems elems;
+
+ printk(KERN_DEBUG "%s: replying to auth challenge\n", dev->name);
+ pos = mgmt->u.auth.variable;
+ if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems)
+ == ParseFailed) {
+ printk(KERN_DEBUG "%s: failed to parse Auth(challenge)\n",
+ dev->name);
+ return;
+ }
+ if (!elems.challenge) {
+ printk(KERN_DEBUG "%s: no challenge IE in shared key auth "
+ "frame\n", dev->name);
+ return;
+ }
+ ieee80211_send_auth(dev, ifsta, 3, elems.challenge - 2,
+ elems.challenge_len + 2, 1);
+}
+
+
+static void ieee80211_rx_mgmt_auth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ u16 auth_alg, auth_transaction, status_code;
+
+ if (ifsta->state != IEEE80211_AUTHENTICATE &&
+ sdata->type != IEEE80211_IF_TYPE_IBSS) {
+ printk(KERN_DEBUG "%s: authentication frame received from "
+ MAC_FMT ", but not in authenticate state - ignored\n",
+ dev->name, MAC_ARG(mgmt->sa));
+ return;
+ }
+
+ if (len < 24 + 6) {
+ printk(KERN_DEBUG "%s: too short (%zd) authentication frame "
+ "received from " MAC_FMT " - ignored\n",
+ dev->name, len, MAC_ARG(mgmt->sa));
+ return;
+ }
+
+ if (sdata->type != IEEE80211_IF_TYPE_IBSS &&
+ memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
+ printk(KERN_DEBUG "%s: authentication frame received from "
+ "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
+ "ignored\n", dev->name, MAC_ARG(mgmt->sa),
+ MAC_ARG(mgmt->bssid));
+ return;
+ }
+
+ if (sdata->type != IEEE80211_IF_TYPE_IBSS &&
+ memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0) {
+ printk(KERN_DEBUG "%s: authentication frame received from "
+ "unknown BSSID (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
+ "ignored\n", dev->name, MAC_ARG(mgmt->sa),
+ MAC_ARG(mgmt->bssid));
+ return;
+ }
+
+ auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg);
+ auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction);
+ status_code = le16_to_cpu(mgmt->u.auth.status_code);
+
+ printk(KERN_DEBUG "%s: RX authentication from " MAC_FMT " (alg=%d "
+ "transaction=%d status=%d)\n",
+ dev->name, MAC_ARG(mgmt->sa), auth_alg,
+ auth_transaction, status_code);
+
+ if (sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ /* IEEE 802.11 standard does not require authentication in IBSS
+ * networks and most implementations do not seem to use it.
+ * However, try to reply to authentication attempts if someone
+ * has actually implemented this.
+ * TODO: Could implement shared key authentication. */
+ if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1) {
+ printk(KERN_DEBUG "%s: unexpected IBSS authentication "
+ "frame (alg=%d transaction=%d)\n",
+ dev->name, auth_alg, auth_transaction);
+ return;
+ }
+ ieee80211_send_auth(dev, ifsta, 2, NULL, 0, 0);
+ }
+
+ if (auth_alg != ifsta->auth_alg ||
+ auth_transaction != ifsta->auth_transaction) {
+ printk(KERN_DEBUG "%s: unexpected authentication frame "
+ "(alg=%d transaction=%d)\n",
+ dev->name, auth_alg, auth_transaction);
+ return;
+ }
+
+ if (status_code != WLAN_STATUS_SUCCESS) {
+ printk(KERN_DEBUG "%s: AP denied authentication (auth_alg=%d "
+ "code=%d)\n", dev->name, ifsta->auth_alg, status_code);
+ if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) {
+ u8 algs[3];
+ const int num_algs = ARRAY_SIZE(algs);
+ int i, pos;
+ algs[0] = algs[1] = algs[2] = 0xff;
+ if (ifsta->auth_algs & IEEE80211_AUTH_ALG_OPEN)
+ algs[0] = WLAN_AUTH_OPEN;
+ if (ifsta->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
+ algs[1] = WLAN_AUTH_SHARED_KEY;
+ if (ifsta->auth_algs & IEEE80211_AUTH_ALG_LEAP)
+ algs[2] = WLAN_AUTH_LEAP;
+ if (ifsta->auth_alg == WLAN_AUTH_OPEN)
+ pos = 0;
+ else if (ifsta->auth_alg == WLAN_AUTH_SHARED_KEY)
+ pos = 1;
+ else
+ pos = 2;
+ for (i = 0; i < num_algs; i++) {
+ pos++;
+ if (pos >= num_algs)
+ pos = 0;
+ if (algs[pos] == ifsta->auth_alg ||
+ algs[pos] == 0xff)
+ continue;
+ if (algs[pos] == WLAN_AUTH_SHARED_KEY &&
+ !ieee80211_sta_wep_configured(dev))
+ continue;
+ ifsta->auth_alg = algs[pos];
+ printk(KERN_DEBUG "%s: set auth_alg=%d for "
+ "next try\n",
+ dev->name, ifsta->auth_alg);
+ break;
+ }
+ }
+ return;
+ }
+
+ switch (ifsta->auth_alg) {
+ case WLAN_AUTH_OPEN:
+ case WLAN_AUTH_LEAP:
+ ieee80211_auth_completed(dev, ifsta);
+ break;
+ case WLAN_AUTH_SHARED_KEY:
+ if (ifsta->auth_transaction == 4)
+ ieee80211_auth_completed(dev, ifsta);
+ else
+ ieee80211_auth_challenge(dev, ifsta, mgmt, len);
+ break;
+ }
+}
+
+
+static void ieee80211_rx_mgmt_deauth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len)
+{
+ u16 reason_code;
+
+ if (len < 24 + 2) {
+ printk(KERN_DEBUG "%s: too short (%zd) deauthentication frame "
+ "received from " MAC_FMT " - ignored\n",
+ dev->name, len, MAC_ARG(mgmt->sa));
+ return;
+ }
+
+ if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
+ printk(KERN_DEBUG "%s: deauthentication frame received from "
+ "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
+ "ignored\n", dev->name, MAC_ARG(mgmt->sa),
+ MAC_ARG(mgmt->bssid));
+ return;
+ }
+
+ reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
+
+ printk(KERN_DEBUG "%s: RX deauthentication from " MAC_FMT
+ " (reason=%d)\n",
+ dev->name, MAC_ARG(mgmt->sa), reason_code);
+
+ if (ifsta->authenticated) {
+ printk(KERN_DEBUG "%s: deauthenticated\n", dev->name);
+ }
+
+ if (ifsta->state == IEEE80211_AUTHENTICATE ||
+ ifsta->state == IEEE80211_ASSOCIATE ||
+ ifsta->state == IEEE80211_ASSOCIATED) {
+ ifsta->state = IEEE80211_AUTHENTICATE;
+ mod_timer(&ifsta->timer, jiffies +
+ IEEE80211_RETRY_AUTH_INTERVAL);
+ }
+
+ ieee80211_set_disassoc(dev, ifsta, 1);
+ ifsta->authenticated = 0;
+}
+
+
+static void ieee80211_rx_mgmt_disassoc(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len)
+{
+ u16 reason_code;
+
+ if (len < 24 + 2) {
+ printk(KERN_DEBUG "%s: too short (%zd) disassociation frame "
+ "received from " MAC_FMT " - ignored\n",
+ dev->name, len, MAC_ARG(mgmt->sa));
+ return;
+ }
+
+ if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
+ printk(KERN_DEBUG "%s: disassociation frame received from "
+ "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
+ "ignored\n", dev->name, MAC_ARG(mgmt->sa),
+ MAC_ARG(mgmt->bssid));
+ return;
+ }
+
+ reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
+
+ printk(KERN_DEBUG "%s: RX disassociation from " MAC_FMT
+ " (reason=%d)\n",
+ dev->name, MAC_ARG(mgmt->sa), reason_code);
+
+ if (ifsta->associated)
+ printk(KERN_DEBUG "%s: disassociated\n", dev->name);
+
+ if (ifsta->state == IEEE80211_ASSOCIATED) {
+ ifsta->state = IEEE80211_ASSOCIATE;
+ mod_timer(&ifsta->timer, jiffies +
+ IEEE80211_RETRY_AUTH_INTERVAL);
+ }
+
+ ieee80211_set_disassoc(dev, ifsta, 0);
+}
+
+
+static void ieee80211_rx_mgmt_assoc_resp(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len,
+ int reassoc)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hw_mode *mode;
+ struct sta_info *sta;
+ u32 rates;
+ u16 capab_info, status_code, aid;
+ struct ieee802_11_elems elems;
+ u8 *pos;
+ int i, j;
+
+ /* AssocResp and ReassocResp have identical structure, so process both
+ * of them in this function. */
+
+ if (ifsta->state != IEEE80211_ASSOCIATE) {
+ printk(KERN_DEBUG "%s: association frame received from "
+ MAC_FMT ", but not in associate state - ignored\n",
+ dev->name, MAC_ARG(mgmt->sa));
+ return;
+ }
+
+ if (len < 24 + 6) {
+ printk(KERN_DEBUG "%s: too short (%zd) association frame "
+ "received from " MAC_FMT " - ignored\n",
+ dev->name, len, MAC_ARG(mgmt->sa));
+ return;
+ }
+
+ if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
+ printk(KERN_DEBUG "%s: association frame received from "
+ "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
+ "ignored\n", dev->name, MAC_ARG(mgmt->sa),
+ MAC_ARG(mgmt->bssid));
+ return;
+ }
+
+ capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info);
+ status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
+ aid = le16_to_cpu(mgmt->u.assoc_resp.aid);
+ if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14)))
+ printk(KERN_DEBUG "%s: invalid aid value %d; bits 15:14 not "
+ "set\n", dev->name, aid);
+ aid &= ~(BIT(15) | BIT(14));
+
+ printk(KERN_DEBUG "%s: RX %sssocResp from " MAC_FMT " (capab=0x%x "
+ "status=%d aid=%d)\n",
+ dev->name, reassoc ? "Rea" : "A", MAC_ARG(mgmt->sa),
+ capab_info, status_code, aid);
+
+ 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;
+ return;
+ }
+
+ pos = mgmt->u.assoc_resp.variable;
+ if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems)
+ == ParseFailed) {
+ printk(KERN_DEBUG "%s: failed to parse AssocResp\n",
+ dev->name);
+ return;
+ }
+
+ if (!elems.supp_rates) {
+ printk(KERN_DEBUG "%s: no SuppRates element in AssocResp\n",
+ dev->name);
+ return;
+ }
+
+ 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);
+ if (ifsta->assocresp_ies)
+ memcpy(ifsta->assocresp_ies, pos, ifsta->assocresp_ies_len);
+
+ ieee80211_set_associated(dev, ifsta, 1);
+
+ /* Add STA entry for the AP */
+ sta = sta_info_get(local, ifsta->bssid);
+ if (!sta) {
+ struct ieee80211_sta_bss *bss;
+ sta = sta_info_add(local, dev, ifsta->bssid, GFP_ATOMIC);
+ if (!sta) {
+ printk(KERN_DEBUG "%s: failed to add STA entry for the"
+ " AP\n", dev->name);
+ return;
+ }
+ bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
+ if (bss) {
+ sta->last_rssi = bss->rssi;
+ sta->last_signal = bss->signal;
+ sta->last_noise = bss->noise;
+ ieee80211_rx_bss_put(dev, bss);
+ }
+ }
+
+ sta->dev = dev;
+ sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
+ sta->assoc_ap = 1;
+
+ 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) {
+ sta->flags |= WLAN_STA_WME;
+ ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
+ elems.wmm_param_len);
+ }
+
+
+ sta_info_put(sta);
+
+ 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_sta_bss *bss)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ bss->hnext = local->sta_bss_hash[STA_HASH(bss->bssid)];
+ local->sta_bss_hash[STA_HASH(bss->bssid)] = bss;
+}
+
+
+/* Caller must hold local->sta_bss_lock */
+static void __ieee80211_rx_bss_hash_del(struct net_device *dev,
+ struct ieee80211_sta_bss *bss)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *b, *prev = NULL;
+ b = local->sta_bss_hash[STA_HASH(bss->bssid)];
+ while (b) {
+ if (b == bss) {
+ if (!prev)
+ local->sta_bss_hash[STA_HASH(bss->bssid)] =
+ bss->hnext;
+ else
+ prev->hnext = bss->hnext;
+ break;
+ }
+ prev = b;
+ b = b->hnext;
+ }
+}
+
+
+static struct ieee80211_sta_bss *
+ieee80211_rx_bss_add(struct net_device *dev, u8 *bssid)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss;
+
+ bss = kmalloc(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);
+
+ spin_lock_bh(&local->sta_bss_lock);
+ /* TODO: order by RSSI? */
+ list_add_tail(&bss->list, &local->sta_bss_list);
+ __ieee80211_rx_bss_hash_add(dev, bss);
+ spin_unlock_bh(&local->sta_bss_lock);
+ return bss;
+}
+
+
+static struct ieee80211_sta_bss *
+ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss;
+
+ spin_lock_bh(&local->sta_bss_lock);
+ bss = local->sta_bss_hash[STA_HASH(bssid)];
+ while (bss) {
+ if (memcmp(bss->bssid, bssid, ETH_ALEN) == 0) {
+ atomic_inc(&bss->users);
+ break;
+ }
+ bss = bss->hnext;
+ }
+ spin_unlock_bh(&local->sta_bss_lock);
+ return bss;
+}
+
+
+static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss)
+{
+ kfree(bss->wpa_ie);
+ kfree(bss->rsn_ie);
+ kfree(bss->wmm_ie);
+ kfree(bss->ht_ie);
+ kfree(bss);
+}
+
+
+static void ieee80211_rx_bss_put(struct net_device *dev,
+ struct ieee80211_sta_bss *bss)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ if (!atomic_dec_and_test(&bss->users))
+ return;
+
+ spin_lock_bh(&local->sta_bss_lock);
+ __ieee80211_rx_bss_hash_del(dev, bss);
+ list_del(&bss->list);
+ spin_unlock_bh(&local->sta_bss_lock);
+ ieee80211_rx_bss_free(bss);
+}
+
+
+void ieee80211_rx_bss_list_init(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ spin_lock_init(&local->sta_bss_lock);
+ INIT_LIST_HEAD(&local->sta_bss_list);
+}
+
+
+void ieee80211_rx_bss_list_deinit(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss, *tmp;
+
+ list_for_each_entry_safe(bss, tmp, &local->sta_bss_list, list)
+ ieee80211_rx_bss_put(dev, bss);
+}
+
+
+static void ieee80211_rx_bss_info(struct net_device *dev,
+ struct ieee80211_mgmt *mgmt,
+ size_t len,
+ struct ieee80211_rx_status *rx_status,
+ int beacon)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee802_11_elems elems;
+ size_t baselen;
+ int channel, invalid = 0, clen;
+ struct ieee80211_sta_bss *bss;
+ struct sta_info *sta;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ u64 timestamp;
+
+ if (!beacon && memcmp(mgmt->da, dev->dev_addr, ETH_ALEN))
+ return; /* ignore ProbeResp to foreign address */
+
+#if 0
+ printk(KERN_DEBUG "%s: RX %s from " MAC_FMT " to " MAC_FMT "\n",
+ dev->name, beacon ? "Beacon" : "Probe Response",
+ MAC_ARG(mgmt->sa), MAC_ARG(mgmt->da));
+#endif
+
+ baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
+ if (baselen > len)
+ return;
+
+ timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
+
+ if (sdata->type == IEEE80211_IF_TYPE_IBSS && beacon &&
+ memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) {
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ static unsigned long last_tsf_debug = 0;
+ u64 tsf;
+ if (local->ops->get_tsf)
+ tsf = local->ops->get_tsf(local_to_hw(local));
+ else
+ tsf = -1LLU;
+ if (time_after(jiffies, last_tsf_debug + 5 * HZ)) {
+ printk(KERN_DEBUG "RX beacon SA=" MAC_FMT " BSSID="
+ MAC_FMT " TSF=0x%llx BCN=0x%llx diff=%lld "
+ "@%lu\n",
+ MAC_ARG(mgmt->sa), MAC_ARG(mgmt->bssid),
+ (unsigned long long)tsf,
+ (unsigned long long)timestamp,
+ (unsigned long long)(tsf - timestamp),
+ jiffies);
+ last_tsf_debug = jiffies;
+ }
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+ }
+
+ if (ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen,
+ &elems) == ParseFailed)
+ invalid = 1;
+
+ if (sdata->type == IEEE80211_IF_TYPE_IBSS && elems.supp_rates &&
+ memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0 &&
+ (sta = sta_info_get(local, mgmt->sa))) {
+ struct ieee80211_hw_mode *mode;
+ struct ieee80211_rate *rates;
+ size_t num_rates;
+ u32 supp_rates, prev_rates;
+ int i, j;
+
+ mode = local->sta_scanning ?
+ local->scan_hw_mode : local->oper_hw_mode;
+ rates = mode->rates;
+ num_rates = mode->num_rates;
+
+ supp_rates = 0;
+ for (i = 0; i < elems.supp_rates_len +
+ elems.ext_supp_rates_len; i++) {
+ u8 rate = 0;
+ int own_rate;
+ 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];
+ 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);
+ }
+
+ prev_rates = sta->supp_rates;
+ sta->supp_rates &= supp_rates;
+ if (sta->supp_rates == 0) {
+ /* No matching rates - this should not really happen.
+ * Make sure that at least one rate is marked
+ * supported to avoid issues with TX rate ctrl. */
+ sta->supp_rates = sdata->u.sta.supp_rates_bits;
+ }
+ if (sta->supp_rates != prev_rates) {
+ printk(KERN_DEBUG "%s: updated supp_rates set for "
+ MAC_FMT " based on beacon info (0x%x & 0x%x -> "
+ "0x%x)\n",
+ dev->name, MAC_ARG(sta->addr), prev_rates,
+ supp_rates, sta->supp_rates);
+ }
+ sta_info_put(sta);
+ }
+
+ if (!elems.ssid)
+ return;
+
+ if (elems.ds_params && elems.ds_params_len == 1)
+ channel = elems.ds_params[0];
+ else
+ channel = rx_status->channel;
+
+ bss = ieee80211_rx_bss_get(dev, mgmt->bssid);
+ if (!bss) {
+ bss = ieee80211_rx_bss_add(dev, mgmt->bssid);
+ if (!bss)
+ return;
+ } else {
+#if 0
+ /* TODO: order by RSSI? */
+ spin_lock_bh(&local->sta_bss_lock);
+ list_move_tail(&bss->list, &local->sta_bss_list);
+ spin_unlock_bh(&local->sta_bss_lock);
+#endif
+ }
+
+ if (bss->probe_resp && beacon) {
+ /* Do not allow beacon to override data from Probe Response. */
+ ieee80211_rx_bss_put(dev, bss);
+ return;
+ }
+
+ 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) {
+ memcpy(bss->ssid, elems.ssid, elems.ssid_len);
+ bss->ssid_len = elems.ssid_len;
+ }
+
+ bss->supp_rates_len = 0;
+ if (elems.supp_rates) {
+ clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
+ if (clen > elems.supp_rates_len)
+ clen = elems.supp_rates_len;
+ memcpy(&bss->supp_rates[bss->supp_rates_len], elems.supp_rates,
+ clen);
+ bss->supp_rates_len += clen;
+ }
+ if (elems.ext_supp_rates) {
+ clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
+ if (clen > elems.ext_supp_rates_len)
+ clen = elems.ext_supp_rates_len;
+ memcpy(&bss->supp_rates[bss->supp_rates_len],
+ elems.ext_supp_rates, clen);
+ bss->supp_rates_len += clen;
+ }
+
+ if (elems.wpa &&
+ (!bss->wpa_ie || bss->wpa_ie_len != elems.wpa_len ||
+ memcmp(bss->wpa_ie, elems.wpa, elems.wpa_len))) {
+ kfree(bss->wpa_ie);
+ bss->wpa_ie = kmalloc(elems.wpa_len + 2, GFP_ATOMIC);
+ if (bss->wpa_ie) {
+ memcpy(bss->wpa_ie, elems.wpa - 2, elems.wpa_len + 2);
+ bss->wpa_ie_len = elems.wpa_len + 2;
+ } else
+ bss->wpa_ie_len = 0;
+ } else if (!elems.wpa && bss->wpa_ie) {
+ kfree(bss->wpa_ie);
+ bss->wpa_ie = NULL;
+ bss->wpa_ie_len = 0;
+ }
+
+ if (elems.rsn &&
+ (!bss->rsn_ie || bss->rsn_ie_len != elems.rsn_len ||
+ memcmp(bss->rsn_ie, elems.rsn, elems.rsn_len))) {
+ kfree(bss->rsn_ie);
+ bss->rsn_ie = kmalloc(elems.rsn_len + 2, GFP_ATOMIC);
+ if (bss->rsn_ie) {
+ memcpy(bss->rsn_ie, elems.rsn - 2, elems.rsn_len + 2);
+ bss->rsn_ie_len = elems.rsn_len + 2;
+ } else
+ bss->rsn_ie_len = 0;
+ } else if (!elems.rsn && bss->rsn_ie) {
+ kfree(bss->rsn_ie);
+ bss->rsn_ie = NULL;
+ bss->rsn_ie_len = 0;
+ }
+
+ if (elems.wmm_param &&
+ (!bss->wmm_ie || bss->wmm_ie_len != elems.wmm_param_len ||
+ memcmp(bss->wmm_ie, elems.wmm_param, elems.wmm_param_len))) {
+ kfree(bss->wmm_ie);
+ bss->wmm_ie = kmalloc(elems.wmm_param_len + 2, GFP_ATOMIC);
+ if (bss->wmm_ie) {
+ memcpy(bss->wmm_ie, elems.wmm_param - 2,
+ elems.wmm_param_len + 2);
+ bss->wmm_ie_len = elems.wmm_param_len + 2;
+ } else
+ bss->wmm_ie_len = 0;
+ } else if (!elems.wmm_param && bss->wmm_ie) {
+ kfree(bss->wmm_ie);
+ bss->wmm_ie = NULL;
+ 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;
+ bss->freq = rx_status->freq;
+ if (channel != rx_status->channel &&
+ (bss->hw_mode == MODE_IEEE80211G ||
+ bss->hw_mode == MODE_IEEE80211B) &&
+ channel >= 1 && channel <= 14) {
+ static const int freq_list[] = {
+ 2412, 2417, 2422, 2427, 2432, 2437, 2442,
+ 2447, 2452, 2457, 2462, 2467, 2472, 2484
+ };
+ /* IEEE 802.11g/b mode can receive packets from neighboring
+ * channels, so map the channel into frequency. */
+ bss->freq = freq_list[channel - 1];
+ }
+ bss->timestamp = timestamp;
+ bss->last_update = jiffies;
+ bss->rssi = rx_status->ssi;
+ bss->signal = rx_status->signal;
+ bss->noise = rx_status->noise;
+ if (!beacon)
+ bss->probe_resp++;
+ ieee80211_rx_bss_put(dev, bss);
+}
+
+
+static void ieee80211_rx_mgmt_probe_resp(struct net_device *dev,
+ struct ieee80211_mgmt *mgmt,
+ size_t len,
+ struct ieee80211_rx_status *rx_status)
+{
+ ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 0);
+}
+
+
+static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
+ struct ieee80211_mgmt *mgmt,
+ 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;
+
+ ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 1);
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type != IEEE80211_IF_TYPE_STA)
+ return;
+ ifsta = &sdata->u.sta;
+
+ if (!ifsta->associated ||
+ memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0)
+ return;
+
+ /* Process beacon from the current BSS */
+ baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
+ if (baselen > len)
+ return;
+
+ if (ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen,
+ &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.wmm_param && ifsta->wmm_enabled) {
+ ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
+ elems.wmm_param_len);
+ }
+}
+
+
+static void ieee80211_rx_mgmt_probe_req(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len,
+ struct ieee80211_rx_status *rx_status)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int tx_last_beacon;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *resp;
+ u8 *pos, *end;
+
+ if (sdata->type != IEEE80211_IF_TYPE_IBSS ||
+ ifsta->state != IEEE80211_IBSS_JOINED ||
+ len < 24 + 2 || !ifsta->probe_resp)
+ return;
+
+ if (local->ops->tx_last_beacon)
+ tx_last_beacon = local->ops->tx_last_beacon(local_to_hw(local));
+ else
+ tx_last_beacon = 1;
+
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ printk(KERN_DEBUG "%s: RX ProbeReq SA=" MAC_FMT " DA=" MAC_FMT " BSSID="
+ MAC_FMT " (tx_last_beacon=%d)\n",
+ dev->name, MAC_ARG(mgmt->sa), MAC_ARG(mgmt->da),
+ MAC_ARG(mgmt->bssid), tx_last_beacon);
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+
+ if (!tx_last_beacon)
+ return;
+
+ if (memcmp(mgmt->bssid, ifsta->bssid, ETH_ALEN) != 0 &&
+ memcmp(mgmt->bssid, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
+ return;
+
+ end = ((u8 *) mgmt) + len;
+ pos = mgmt->u.probe_req.variable;
+ if (pos[0] != WLAN_EID_SSID ||
+ pos + 2 + pos[1] > end) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: Invalid SSID IE in ProbeReq "
+ "from " MAC_FMT "\n",
+ dev->name, MAC_ARG(mgmt->sa));
+ }
+ return;
+ }
+ if (pos[1] != 0 &&
+ (pos[1] != ifsta->ssid_len ||
+ memcmp(pos + 2, ifsta->ssid, ifsta->ssid_len) != 0)) {
+ /* Ignore ProbeReq for foreign SSID */
+ return;
+ }
+
+ /* Reply with ProbeResp */
+ skb = skb_copy(ifsta->probe_resp, GFP_ATOMIC);
+ if (!skb)
+ return;
+
+ resp = (struct ieee80211_mgmt *) skb->data;
+ memcpy(resp->da, mgmt->sa, ETH_ALEN);
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ printk(KERN_DEBUG "%s: Sending ProbeResp to " MAC_FMT "\n",
+ dev->name, MAC_ARG(resp->da));
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+ 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)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_if_sta *ifsta;
+ struct ieee80211_mgmt *mgmt;
+ u16 fc;
+
+ if (skb->len < 24)
+ goto fail;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ ifsta = &sdata->u.sta;
+
+ mgmt = (struct ieee80211_mgmt *) skb->data;
+ fc = le16_to_cpu(mgmt->frame_control);
+
+ switch (fc & IEEE80211_FCTL_STYPE) {
+ case IEEE80211_STYPE_PROBE_REQ:
+ case IEEE80211_STYPE_PROBE_RESP:
+ case IEEE80211_STYPE_BEACON:
+ memcpy(skb->cb, rx_status, sizeof(*rx_status));
+ case IEEE80211_STYPE_AUTH:
+ case IEEE80211_STYPE_ASSOC_RESP:
+ 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;
+ default:
+ printk(KERN_DEBUG "%s: received unknown management frame - "
+ "stype=%d\n", dev->name,
+ (fc & IEEE80211_FCTL_STYPE) >> 4);
+ break;
+ }
+
+ fail:
+ kfree_skb(skb);
+}
+
+
+static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev,
+ struct sk_buff *skb)
+{
+ struct ieee80211_rx_status *rx_status;
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_if_sta *ifsta;
+ struct ieee80211_mgmt *mgmt;
+ u16 fc;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ ifsta = &sdata->u.sta;
+
+ rx_status = (struct ieee80211_rx_status *) skb->cb;
+ mgmt = (struct ieee80211_mgmt *) skb->data;
+ fc = le16_to_cpu(mgmt->frame_control);
+
+ switch (fc & IEEE80211_FCTL_STYPE) {
+ case IEEE80211_STYPE_PROBE_REQ:
+ ieee80211_rx_mgmt_probe_req(dev, ifsta, mgmt, skb->len,
+ rx_status);
+ break;
+ case IEEE80211_STYPE_PROBE_RESP:
+ ieee80211_rx_mgmt_probe_resp(dev, mgmt, skb->len, rx_status);
+ break;
+ case IEEE80211_STYPE_BEACON:
+ ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len, rx_status);
+ break;
+ case IEEE80211_STYPE_AUTH:
+ ieee80211_rx_mgmt_auth(dev, ifsta, mgmt, skb->len);
+ break;
+ case IEEE80211_STYPE_ASSOC_RESP:
+ ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len, 0);
+ break;
+ case IEEE80211_STYPE_REASSOC_RESP:
+ ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len, 1);
+ break;
+ case IEEE80211_STYPE_DEAUTH:
+ ieee80211_rx_mgmt_deauth(dev, ifsta, mgmt, skb->len);
+ break;
+ 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);
+}
+
+
+void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
+ struct ieee80211_rx_status *rx_status)
+{
+ struct ieee80211_mgmt *mgmt;
+ u16 fc;
+
+ if (skb->len < 24) {
+ dev_kfree_skb(skb);
+ return;
+ }
+
+ mgmt = (struct ieee80211_mgmt *) skb->data;
+ fc = le16_to_cpu(mgmt->frame_control);
+
+ if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
+ if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP) {
+ ieee80211_rx_mgmt_probe_resp(dev, mgmt,
+ skb->len, rx_status);
+ } else if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON) {
+ ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len,
+ rx_status);
+ }
+ }
+
+ dev_kfree_skb(skb);
+}
+
+
+static int ieee80211_sta_active_ibss(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ int active = 0;
+ struct sta_info *sta;
+
+ spin_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,
+ jiffies)) {
+ active++;
+ break;
+ }
+ }
+ spin_unlock_bh(&local->sta_lock);
+
+ return active;
+}
+
+
+static void ieee80211_sta_expire(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta, *tmp;
+
+ spin_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);
+ }
+ spin_unlock_bh(&local->sta_lock);
+}
+
+
+static void ieee80211_sta_merge_ibss(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
+
+ ieee80211_sta_expire(dev);
+ if (ieee80211_sta_active_ibss(dev))
+ return;
+
+ printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
+ "IBSS networks with same SSID (merge)\n", dev->name);
+ ieee80211_sta_req_scan(dev, ifsta->ssid, ifsta->ssid_len);
+}
+
+
+void ieee80211_sta_timer(unsigned long data)
+{
+ struct ieee80211_sub_if_data *sdata =
+ (struct ieee80211_sub_if_data *) data;
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ struct ieee80211_local *local = wdev_priv(&sdata->wdev);
+
+ set_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
+ queue_work(local->hw.workqueue, &ifsta->work);
+}
+
+
+void ieee80211_sta_work(struct work_struct *work)
+{
+ struct ieee80211_sub_if_data *sdata =
+ container_of(work, struct ieee80211_sub_if_data, u.sta.work);
+ struct net_device *dev = sdata->dev;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_if_sta *ifsta;
+ struct sk_buff *skb;
+
+ if (!netif_running(dev))
+ return;
+
+ if (local->sta_scanning)
+ return;
+
+ if (sdata->type != IEEE80211_IF_TYPE_STA &&
+ sdata->type != IEEE80211_IF_TYPE_IBSS) {
+ printk(KERN_DEBUG "%s: ieee80211_sta_work: non-STA interface "
+ "(type=%d)\n", dev->name, sdata->type);
+ return;
+ }
+ ifsta = &sdata->u.sta;
+
+ while ((skb = skb_dequeue(&ifsta->skb_queue)))
+ ieee80211_sta_rx_queued_mgmt(dev, skb);
+
+ if (ifsta->state != IEEE80211_AUTHENTICATE &&
+ ifsta->state != IEEE80211_ASSOCIATE &&
+ test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
+ ieee80211_sta_start_scan(dev, NULL, 0);
+ return;
+ }
+
+ if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request)) {
+ if (ieee80211_sta_config_auth(dev, ifsta))
+ return;
+ clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
+ } else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request))
+ return;
+
+ switch (ifsta->state) {
+ case IEEE80211_DISABLED:
+ break;
+ case IEEE80211_AUTHENTICATE:
+ ieee80211_authenticate(dev, ifsta);
+ break;
+ case IEEE80211_ASSOCIATE:
+ ieee80211_associate(dev, ifsta);
+ break;
+ case IEEE80211_ASSOCIATED:
+ ieee80211_associated(dev, ifsta);
+ break;
+ case IEEE80211_IBSS_SEARCH:
+ ieee80211_sta_find_ibss(dev, ifsta);
+ break;
+ case IEEE80211_IBSS_JOINED:
+ ieee80211_sta_merge_ibss(dev, ifsta);
+ break;
+ default:
+ printk(KERN_DEBUG "ieee80211_sta_work: Unknown state %d\n",
+ ifsta->state);
+ break;
+ }
+
+ if (ieee80211_privacy_mismatch(dev, ifsta)) {
+ printk(KERN_DEBUG "%s: privacy configuration mismatch and "
+ "mixed-cell disabled - disassociate\n", dev->name);
+
+ ieee80211_send_disassoc(dev, ifsta, WLAN_REASON_UNSPECIFIED);
+ ieee80211_set_disassoc(dev, ifsta, 0);
+ }
+}
+
+
+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)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ if (local->ops->reset_tsf) {
+ /* Reset own TSF to allow time synchronization work. */
+ local->ops->reset_tsf(local_to_hw(local));
+ }
+
+ ifsta->wmm_last_param_set = -1; /* allow any WMM update */
+
+
+ if (ifsta->auth_algs & IEEE80211_AUTH_ALG_OPEN)
+ ifsta->auth_alg = WLAN_AUTH_OPEN;
+ else if (ifsta->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
+ ifsta->auth_alg = WLAN_AUTH_SHARED_KEY;
+ else if (ifsta->auth_algs & IEEE80211_AUTH_ALG_LEAP)
+ ifsta->auth_alg = WLAN_AUTH_LEAP;
+ else
+ ifsta->auth_alg = WLAN_AUTH_OPEN;
+ 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;
+ netif_carrier_off(dev);
+}
+
+
+void ieee80211_sta_req_auth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ 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)
+ return;
+
+ if ((ifsta->bssid_set || ifsta->auto_bssid_sel) &&
+ (ifsta->ssid_set || ifsta->auto_ssid_sel)) {
+ set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
+ queue_work(local->hw.workqueue, &ifsta->work);
+ }
+}
+
+static int ieee80211_sta_match_ssid(struct ieee80211_if_sta *ifsta,
+ const char *ssid, int ssid_len)
+{
+ int tmp, hidden_ssid;
+
+ if (!memcmp(ifsta->ssid, ssid, ssid_len))
+ return 1;
+
+ if (ifsta->auto_bssid_sel)
+ return 0;
+
+ hidden_ssid = 1;
+ tmp = ssid_len;
+ while (tmp--) {
+ if (ssid[tmp] != '\0') {
+ hidden_ssid = 0;
+ break;
+ }
+ }
+
+ if (hidden_ssid && ifsta->ssid_len == ssid_len)
+ return 1;
+
+ if (ssid_len == 1 && ssid[0] == ' ')
+ return 1;
+
+ return 0;
+}
+
+static int ieee80211_sta_config_auth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ 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) {
+ ifsta->state = IEEE80211_AUTHENTICATE;
+ rtnl_unlock();
+ ieee80211_sta_reset_auth(dev, ifsta);
+ return 0;
+ }
+
+ spin_lock_bh(&local->sta_bss_lock);
+ freq = local->oper_channel->freq;
+ list_for_each_entry(bss, &local->sta_bss_list, list) {
+ if (!(bss->capability & WLAN_CAPABILITY_ESS))
+ continue;
+
+ if (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^
+ !!sdata->default_key)
+ continue;
+
+ if (!ifsta->auto_channel_sel && bss->freq != freq)
+ continue;
+
+ if (!ifsta->auto_bssid_sel &&
+ memcmp(bss->bssid, ifsta->bssid, ETH_ALEN))
+ continue;
+
+ if (!ifsta->auto_ssid_sel &&
+ !ieee80211_sta_match_ssid(ifsta, bss->ssid, bss->ssid_len))
+ continue;
+
+ if (!selected || top_rssi < bss->rssi) {
+ selected = bss;
+ top_rssi = bss->rssi;
+ }
+ }
+ if (selected)
+ atomic_inc(&selected->users);
+ spin_unlock_bh(&local->sta_bss_lock);
+
+ if (selected) {
+ ieee80211_set_channel(local, -1, selected->freq);
+ if (!ifsta->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);
+ ifsta->state = IEEE80211_AUTHENTICATE;
+ set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
+ } else
+ ifsta->state = IEEE80211_DISABLED;
+ }
+ rtnl_unlock();
+ return -1;
+}
+
+static int ieee80211_sta_join_ibss(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_sta_bss *bss)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ int res, rates, i, j;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+ struct ieee80211_tx_control control;
+ struct ieee80211_rate *rate;
+ struct ieee80211_hw_mode *mode;
+ struct rate_control_extra extra;
+ u8 *pos;
+ struct ieee80211_sub_if_data *sdata;
+
+ /* Remove possible STA entries from other IBSS networks. */
+ sta_info_flush(local, NULL);
+
+ if (local->ops->reset_tsf) {
+ /* Reset own TSF to allow time synchronization work. */
+ local->ops->reset_tsf(local_to_hw(local));
+ }
+ memcpy(ifsta->bssid, bss->bssid, ETH_ALEN);
+ res = ieee80211_if_config(dev);
+ if (res)
+ return res;
+
+ local->hw.conf.beacon_int = bss->beacon_int >= 10 ? bss->beacon_int : 10;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ sdata->drop_unencrypted = bss->capability &
+ WLAN_CAPABILITY_PRIVACY ? 1 : 0;
+
+ res = ieee80211_set_channel(local, -1, bss->freq);
+
+ if (!(local->oper_channel->flag & IEEE80211_CHAN_W_IBSS)) {
+ printk(KERN_DEBUG "%s: IBSS not allowed on channel %d "
+ "(%d MHz)\n", dev->name, local->hw.conf.channel,
+ local->hw.conf.freq);
+ return -1;
+ }
+
+ /* Set beacon template based on scan results */
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
+ do {
+ if (!skb)
+ break;
+
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ mgmt = (struct ieee80211_mgmt *)
+ skb_put(skb, 24 + sizeof(mgmt->u.beacon));
+ memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
+ mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_BEACON);
+ memset(mgmt->da, 0xff, ETH_ALEN);
+ memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+ mgmt->u.beacon.beacon_int =
+ cpu_to_le16(local->hw.conf.beacon_int);
+ mgmt->u.beacon.capab_info = cpu_to_le16(bss->capability);
+
+ pos = skb_put(skb, 2 + ifsta->ssid_len);
+ *pos++ = WLAN_EID_SSID;
+ *pos++ = ifsta->ssid_len;
+ memcpy(pos, ifsta->ssid, ifsta->ssid_len);
+
+ rates = bss->supp_rates_len;
+ if (rates > 8)
+ rates = 8;
+ pos = skb_put(skb, 2 + rates);
+ *pos++ = WLAN_EID_SUPP_RATES;
+ *pos++ = rates;
+ memcpy(pos, bss->supp_rates, rates);
+
+ pos = skb_put(skb, 2 + 1);
+ *pos++ = WLAN_EID_DS_PARAMS;
+ *pos++ = 1;
+ *pos++ = bss->channel;
+
+ pos = skb_put(skb, 2 + 2);
+ *pos++ = WLAN_EID_IBSS_PARAMS;
+ *pos++ = 2;
+ /* FIX: set ATIM window based on scan results */
+ *pos++ = 0;
+ *pos++ = 0;
+
+ if (bss->supp_rates_len > 8) {
+ rates = bss->supp_rates_len - 8;
+ pos = skb_put(skb, 2 + rates);
+ *pos++ = WLAN_EID_EXT_SUPP_RATES;
+ *pos++ = rates;
+ memcpy(pos, &bss->supp_rates[8], rates);
+ }
+
+ memset(&control, 0, sizeof(control));
+ memset(&extra, 0, sizeof(extra));
+ extra.mode = local->oper_hw_mode;
+ rate = rate_control_get_rate(local, dev, skb, &extra);
+ if (!rate) {
+ printk(KERN_DEBUG "%s: Failed to determine TX rate "
+ "for IBSS beacon\n", dev->name);
+ break;
+ }
+ 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;
+
+ ifsta->probe_resp = skb_copy(skb, GFP_ATOMIC);
+ if (ifsta->probe_resp) {
+ mgmt = (struct ieee80211_mgmt *)
+ ifsta->probe_resp->data;
+ mgmt->frame_control =
+ IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_PROBE_RESP);
+ } else {
+ printk(KERN_DEBUG "%s: Could not allocate ProbeResp "
+ "template for IBSS\n", dev->name);
+ }
+
+ if (local->ops->beacon_update &&
+ local->ops->beacon_update(local_to_hw(local),
+ skb, &control) == 0) {
+ printk(KERN_DEBUG "%s: Configured IBSS beacon "
+ "template based on scan results\n", dev->name);
+ skb = NULL;
+ }
+
+ rates = 0;
+ 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);
+ }
+ ifsta->supp_rates_bits = rates;
+ } while (0);
+
+ if (skb) {
+ printk(KERN_DEBUG "%s: Failed to configure IBSS beacon "
+ "template\n", dev->name);
+ dev_kfree_skb(skb);
+ }
+
+ ifsta->state = IEEE80211_IBSS_JOINED;
+ mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
+
+ ieee80211_rx_bss_put(dev, bss);
+
+ return res;
+}
+
+
+static int ieee80211_sta_create_ibss(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss;
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_hw_mode *mode;
+ u8 bssid[ETH_ALEN], *pos;
+ int i;
+
+#if 0
+ /* Easier testing, use fixed BSSID. */
+ memset(bssid, 0xfe, ETH_ALEN);
+#else
+ /* Generate random, not broadcast, locally administered BSSID. Mix in
+ * own MAC address to make sure that devices that do not have proper
+ * random number generator get different BSSID. */
+ get_random_bytes(bssid, ETH_ALEN);
+ for (i = 0; i < ETH_ALEN; i++)
+ bssid[i] ^= dev->dev_addr[i];
+ bssid[0] &= ~0x01;
+ bssid[0] |= 0x02;
+#endif
+
+ printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID " MAC_FMT "\n",
+ dev->name, MAC_ARG(bssid));
+
+ bss = ieee80211_rx_bss_add(dev, bssid);
+ if (!bss)
+ return -ENOMEM;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ mode = local->oper_hw_mode;
+
+ if (local->hw.conf.beacon_int == 0)
+ local->hw.conf.beacon_int = 100;
+ bss->beacon_int = local->hw.conf.beacon_int;
+ bss->hw_mode = local->hw.conf.phymode;
+ bss->channel = local->hw.conf.channel;
+ bss->freq = local->hw.conf.freq;
+ bss->last_update = jiffies;
+ bss->capability = WLAN_CAPABILITY_IBSS;
+ if (sdata->default_key) {
+ bss->capability |= WLAN_CAPABILITY_PRIVACY;
+ } else
+ sdata->drop_unencrypted = 0;
+ bss->supp_rates_len = mode->num_rates;
+ 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);
+ }
+
+ return ieee80211_sta_join_ibss(dev, ifsta, bss);
+}
+
+
+static int ieee80211_sta_find_ibss(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss;
+ int found = 0;
+ u8 bssid[ETH_ALEN];
+ int active_ibss;
+
+ if (ifsta->ssid_len == 0)
+ return -EINVAL;
+
+ active_ibss = ieee80211_sta_active_ibss(dev);
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n",
+ dev->name, active_ibss);
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+ spin_lock_bh(&local->sta_bss_lock);
+ list_for_each_entry(bss, &local->sta_bss_list, list) {
+ if (ifsta->ssid_len != bss->ssid_len ||
+ memcmp(ifsta->ssid, bss->ssid, bss->ssid_len) != 0
+ || !(bss->capability & WLAN_CAPABILITY_IBSS))
+ continue;
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ printk(KERN_DEBUG " bssid=" MAC_FMT " found\n",
+ MAC_ARG(bss->bssid));
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+ memcpy(bssid, bss->bssid, ETH_ALEN);
+ found = 1;
+ if (active_ibss || memcmp(bssid, ifsta->bssid, ETH_ALEN) != 0)
+ break;
+ }
+ spin_unlock_bh(&local->sta_bss_lock);
+
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ printk(KERN_DEBUG " sta_find_ibss: selected " MAC_FMT " current "
+ MAC_FMT "\n", MAC_ARG(bssid), MAC_ARG(ifsta->bssid));
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+ if (found && memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0 &&
+ (bss = ieee80211_rx_bss_get(dev, bssid))) {
+ printk(KERN_DEBUG "%s: Selected IBSS BSSID " MAC_FMT
+ " based on configured SSID\n",
+ dev->name, MAC_ARG(bssid));
+ return ieee80211_sta_join_ibss(dev, ifsta, bss);
+ }
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ printk(KERN_DEBUG " did not try to join ibss\n");
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+
+ /* Selected IBSS not found in current scan results - try to scan */
+ if (ifsta->state == IEEE80211_IBSS_JOINED &&
+ !ieee80211_sta_active_ibss(dev)) {
+ mod_timer(&ifsta->timer, jiffies +
+ IEEE80211_IBSS_MERGE_INTERVAL);
+ } else if (time_after(jiffies, local->last_scan_completed +
+ IEEE80211_SCAN_INTERVAL)) {
+ printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
+ "join\n", dev->name);
+ return ieee80211_sta_req_scan(dev, ifsta->ssid,
+ ifsta->ssid_len);
+ } else if (ifsta->state != IEEE80211_IBSS_JOINED) {
+ int interval = IEEE80211_SCAN_INTERVAL;
+
+ if (time_after(jiffies, ifsta->ibss_join_req +
+ IEEE80211_IBSS_JOIN_TIMEOUT)) {
+ if (ifsta->create_ibss &&
+ local->oper_channel->flag & IEEE80211_CHAN_W_IBSS)
+ return ieee80211_sta_create_ibss(dev, ifsta);
+ if (ifsta->create_ibss) {
+ printk(KERN_DEBUG "%s: IBSS not allowed on the"
+ " configured channel %d (%d MHz)\n",
+ dev->name, local->hw.conf.channel,
+ local->hw.conf.freq);
+ }
+
+ /* No IBSS found - decrease scan interval and continue
+ * scanning. */
+ interval = IEEE80211_SCAN_INTERVAL_SLOW;
+ }
+
+ ifsta->state = IEEE80211_IBSS_SEARCH;
+ mod_timer(&ifsta->timer, jiffies + interval);
+ return 0;
+ }
+
+ return 0;
+}
+
+
+int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_if_sta *ifsta;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ if (len > IEEE80211_MAX_SSID_LEN)
+ return -EINVAL;
+
+ /* TODO: This should always be done for IBSS, even if IEEE80211_QOS is
+ * not defined. */
+ if (local->ops->conf_tx) {
+ struct ieee80211_tx_queue_params qparam;
+ int i;
+
+ memset(&qparam, 0, sizeof(qparam));
+ /* TODO: are these ok defaults for all hw_modes? */
+ qparam.aifs = 2;
+ qparam.cw_min =
+ local->hw.conf.phymode == MODE_IEEE80211B ? 31 : 15;
+ qparam.cw_max = 1023;
+ qparam.burst_time = 0;
+ for (i = IEEE80211_TX_QUEUE_DATA0; i < NUM_TX_DATA_QUEUES; i++)
+ {
+ local->ops->conf_tx(local_to_hw(local),
+ i + IEEE80211_TX_QUEUE_DATA0,
+ &qparam);
+ }
+ /* IBSS uses different parameters for Beacon sending */
+ qparam.cw_min++;
+ qparam.cw_min *= 2;
+ qparam.cw_min--;
+ local->ops->conf_tx(local_to_hw(local),
+ IEEE80211_TX_QUEUE_BEACON, &qparam);
+ }
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ ifsta = &sdata->u.sta;
+
+ if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0)
+ ifsta->prev_bssid_set = 0;
+ 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) {
+ ifsta->ibss_join_req = jiffies;
+ ifsta->state = IEEE80211_IBSS_SEARCH;
+ return ieee80211_sta_find_ibss(dev, ifsta);
+ }
+ return 0;
+}
+
+
+int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ memcpy(ssid, ifsta->ssid, ifsta->ssid_len);
+ *len = ifsta->ssid_len;
+ return 0;
+}
+
+
+int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_if_sta *ifsta;
+ int res;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ ifsta = &sdata->u.sta;
+
+ if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) {
+ memcpy(ifsta->bssid, bssid, ETH_ALEN);
+ res = ieee80211_if_config(dev);
+ if (res) {
+ printk(KERN_DEBUG "%s: Failed to config new BSSID to "
+ "the low-level driver\n", dev->name);
+ return res;
+ }
+ }
+
+ if (!is_valid_ether_addr(bssid))
+ ifsta->bssid_set = 0;
+ else
+ ifsta->bssid_set = 1;
+ return 0;
+}
+
+
+static void ieee80211_send_nullfunc(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ int powersave)
+{
+ struct sk_buff *skb;
+ struct ieee80211_hdr *nullfunc;
+ u16 fc;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
+ "frame\n", sdata->dev->name);
+ return;
+ }
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
+ memset(nullfunc, 0, 24);
+ fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
+ IEEE80211_FCTL_TODS;
+ if (powersave)
+ fc |= IEEE80211_FCTL_PM;
+ nullfunc->frame_control = cpu_to_le16(fc);
+ memcpy(nullfunc->addr1, sdata->u.sta.bssid, ETH_ALEN);
+ memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
+ memcpy(nullfunc->addr3, sdata->u.sta.bssid, ETH_ALEN);
+
+ ieee80211_sta_tx(sdata->dev, skb, 0);
+}
+
+
+void ieee80211_scan_completed(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct net_device *dev = local->scan_dev;
+ struct ieee80211_sub_if_data *sdata;
+ union iwreq_data wrqu;
+
+ local->last_scan_completed = jiffies;
+ wmb();
+ local->sta_scanning = 0;
+
+ if (ieee80211_hw_config(local))
+ 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);
+
+ 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) {
+
+ /* 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)
+ ieee80211_send_nullfunc(local, sdata, 0);
+ ieee80211_sta_timer((unsigned long)sdata);
+ }
+
+ netif_wake_queue(sdata->dev);
+ }
+ read_unlock(&local->sub_if_lock);
+
+ 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 ||
+ (!ifsta->state == IEEE80211_IBSS_JOINED &&
+ !ieee80211_sta_active_ibss(dev)))
+ ieee80211_sta_find_ibss(dev, ifsta);
+ }
+}
+EXPORT_SYMBOL(ieee80211_scan_completed);
+
+void ieee80211_sta_scan_work(struct work_struct *work)
+{
+ struct ieee80211_local *local =
+ container_of(work, struct ieee80211_local, scan_work.work);
+ struct net_device *dev = local->scan_dev;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_hw_mode *mode;
+ struct ieee80211_channel *chan;
+ int skip;
+ unsigned long next_delay = 0;
+
+ if (!local->sta_scanning)
+ return;
+
+ switch (local->scan_state) {
+ case SCAN_SET_CHANNEL:
+ mode = local->scan_hw_mode;
+ if (local->scan_hw_mode->list.next == &local->modes_list &&
+ local->scan_channel_idx >= mode->num_channels) {
+ ieee80211_scan_completed(local_to_hw(local));
+ return;
+ }
+ skip = !(local->enabled_modes & (1 << mode->mode));
+ chan = &mode->channels[local->scan_channel_idx];
+ if (!(chan->flag & IEEE80211_CHAN_W_SCAN) ||
+ (sdata->type == IEEE80211_IF_TYPE_IBSS &&
+ !(chan->flag & IEEE80211_CHAN_W_IBSS)) ||
+ (local->hw_modes & local->enabled_modes &
+ (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
+ skip = 1;
+
+ if (!skip) {
+#if 0
+ printk(KERN_DEBUG "%s: scan channel %d (%d MHz)\n",
+ dev->name, chan->chan, chan->freq);
+#endif
+
+ local->scan_channel = chan;
+ if (ieee80211_hw_config(local)) {
+ printk(KERN_DEBUG "%s: failed to set channel "
+ "%d (%d MHz) for scan\n", dev->name,
+ chan->chan, chan->freq);
+ skip = 1;
+ }
+ }
+
+ local->scan_channel_idx++;
+ if (local->scan_channel_idx >= local->scan_hw_mode->num_channels) {
+ if (local->scan_hw_mode->list.next != &local->modes_list) {
+ local->scan_hw_mode = list_entry(local->scan_hw_mode->list.next,
+ struct ieee80211_hw_mode,
+ list);
+ local->scan_channel_idx = 0;
+ }
+ }
+
+ if (skip)
+ break;
+
+ next_delay = IEEE80211_PROBE_DELAY +
+ usecs_to_jiffies(local->hw.channel_change_time);
+ local->scan_state = SCAN_SEND_PROBE;
+ break;
+ case SCAN_SEND_PROBE:
+ if (local->scan_channel->flag & IEEE80211_CHAN_W_ACTIVE_SCAN) {
+ ieee80211_send_probe_req(dev, NULL, local->scan_ssid,
+ local->scan_ssid_len);
+ next_delay = IEEE80211_CHANNEL_TIME;
+ } else
+ next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
+ local->scan_state = SCAN_SET_CHANNEL;
+ break;
+ }
+
+ if (local->sta_scanning)
+ queue_delayed_work(local->hw.workqueue, &local->scan_work,
+ next_delay);
+}
+
+
+static int ieee80211_sta_start_scan(struct net_device *dev,
+ u8 *ssid, size_t ssid_len)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata;
+
+ if (ssid_len > IEEE80211_MAX_SSID_LEN)
+ return -EINVAL;
+
+ /* MLME-SCAN.request (page 118) page 144 (11.1.3.1)
+ * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS
+ * BSSID: MACAddress
+ * SSID
+ * ScanType: ACTIVE, PASSIVE
+ * ProbeDelay: delay (in microseconds) to be used prior to transmitting
+ * a Probe frame during active scanning
+ * ChannelList
+ * MinChannelTime (>= ProbeDelay), in TU
+ * MaxChannelTime: (>= MinChannelTime), in TU
+ */
+
+ /* MLME-SCAN.confirm
+ * BSSDescriptionSet
+ * ResultCode: SUCCESS, INVALID_PARAMETERS
+ */
+
+ if (local->sta_scanning) {
+ if (local->scan_dev == dev)
+ return 0;
+ return -EBUSY;
+ }
+
+ if (local->ops->hw_scan) {
+ int rc = local->ops->hw_scan(local_to_hw(local),
+ ssid, ssid_len);
+ if (!rc) {
+ local->sta_scanning = 1;
+ local->scan_dev = dev;
+ }
+ return rc;
+ }
+
+ local->sta_scanning = 1;
+
+ read_lock(&local->sub_if_lock);
+ list_for_each_entry(sdata, &local->sub_if_list, list) {
+
+ /* Don't stop the master interface, otherwise we can't transmit
+ * probes! */
+ if (sdata->dev == local->mdev)
+ continue;
+
+ netif_stop_queue(sdata->dev);
+ if (sdata->type == IEEE80211_IF_TYPE_STA &&
+ sdata->u.sta.associated)
+ ieee80211_send_nullfunc(local, sdata, 1);
+ }
+ read_unlock(&local->sub_if_lock);
+
+ if (ssid) {
+ local->scan_ssid_len = ssid_len;
+ memcpy(local->scan_ssid, ssid, ssid_len);
+ } else
+ local->scan_ssid_len = 0;
+ local->scan_state = SCAN_SET_CHANNEL;
+ local->scan_hw_mode = list_entry(local->modes_list.next,
+ struct ieee80211_hw_mode,
+ list);
+ 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);
+
+ /* TODO: start scan as soon as all nullfunc frames are ACKed */
+ queue_delayed_work(local->hw.workqueue, &local->scan_work,
+ IEEE80211_CHANNEL_TIME);
+
+ return 0;
+}
+
+
+int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len)
+{
+ 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);
+
+ if (sdata->type != IEEE80211_IF_TYPE_STA)
+ return ieee80211_sta_start_scan(dev, ssid, ssid_len);
+
+ if (local->sta_scanning) {
+ if (local->scan_dev == dev)
+ return 0;
+ return -EBUSY;
+ }
+
+ set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request);
+ queue_work(local->hw.workqueue, &ifsta->work);
+ return 0;
+}
+
+static char *
+ieee80211_sta_scan_result(struct net_device *dev,
+ struct ieee80211_sta_bss *bss,
+ char *current_ev, char *end_buf)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct iw_event iwe;
+
+ if (time_after(jiffies,
+ bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE))
+ return current_ev;
+
+ if (!(local->enabled_modes & (1 << bss->hw_mode)))
+ return current_ev;
+
+ if (local->scan_flags & IEEE80211_SCAN_WPA_ONLY &&
+ !bss->wpa_ie && !bss->rsn_ie)
+ return current_ev;
+
+ if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID &&
+ (local->scan_ssid_len != bss->ssid_len ||
+ memcmp(local->scan_ssid, bss->ssid, bss->ssid_len) != 0))
+ return current_ev;
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWAP;
+ iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
+ memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN);
+ current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
+ IW_EV_ADDR_LEN);
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWESSID;
+ iwe.u.data.length = bss->ssid_len;
+ iwe.u.data.flags = 1;
+ current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
+ bss->ssid);
+
+ if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWMODE;
+ if (bss->capability & WLAN_CAPABILITY_ESS)
+ iwe.u.mode = IW_MODE_MASTER;
+ else
+ iwe.u.mode = IW_MODE_ADHOC;
+ current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
+ IW_EV_UINT_LEN);
+ }
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWFREQ;
+ iwe.u.freq.m = bss->channel;
+ iwe.u.freq.e = 0;
+ current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
+ IW_EV_FREQ_LEN);
+ iwe.u.freq.m = bss->freq * 100000;
+ iwe.u.freq.e = 1;
+ current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
+ IW_EV_FREQ_LEN);
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVQUAL;
+ iwe.u.qual.qual = bss->signal;
+ iwe.u.qual.level = bss->rssi;
+ iwe.u.qual.noise = bss->noise;
+ iwe.u.qual.updated = local->wstats_flags;
+ current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
+ IW_EV_QUAL_LEN);
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWENCODE;
+ if (bss->capability & WLAN_CAPABILITY_PRIVACY)
+ iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
+ else
+ iwe.u.data.flags = IW_ENCODE_DISABLED;
+ iwe.u.data.length = 0;
+ current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, "");
+
+ if (bss && bss->wpa_ie) {
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVGENIE;
+ iwe.u.data.length = bss->wpa_ie_len;
+ current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
+ bss->wpa_ie);
+ }
+
+ if (bss && bss->rsn_ie) {
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVGENIE;
+ iwe.u.data.length = bss->rsn_ie_len;
+ current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
+ bss->rsn_ie);
+ }
+
+ if (bss && bss->supp_rates_len > 0) {
+ /* display all supported rates in readable format */
+ char *p = current_ev + IW_EV_LCP_LEN;
+ int i;
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWRATE;
+ /* Those two flags are ignored... */
+ iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
+
+ for (i = 0; i < bss->supp_rates_len; i++) {
+ iwe.u.bitrate.value = ((bss->supp_rates[i] &
+ 0x7f) * 500000);
+ p = iwe_stream_add_value(current_ev, p,
+ end_buf, &iwe, IW_EV_PARAM_LEN);
+ }
+ current_ev = p;
+ }
+
+ if (bss) {
+ char *buf;
+ buf = kmalloc(30, GFP_ATOMIC);
+ if (buf) {
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVCUSTOM;
+ sprintf(buf, "tsf=%016llx", (unsigned long long)(bss->timestamp));
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(current_ev, end_buf,
+ &iwe, buf);
+ kfree(buf);
+ }
+ }
+
+ do {
+ char *buf;
+
+ if (!(local->scan_flags & IEEE80211_SCAN_EXTRA_INFO))
+ break;
+
+ buf = kmalloc(100, GFP_ATOMIC);
+ if (!buf)
+ break;
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVCUSTOM;
+ sprintf(buf, "bcn_int=%d", bss->beacon_int);
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
+ buf);
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVCUSTOM;
+ sprintf(buf, "capab=0x%04x", bss->capability);
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
+ buf);
+
+ kfree(buf);
+ break;
+ } while (0);
+
+ return current_ev;
+}
+
+
+int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ char *current_ev = buf;
+ char *end_buf = buf + len;
+ struct ieee80211_sta_bss *bss;
+
+ spin_lock_bh(&local->sta_bss_lock);
+ list_for_each_entry(bss, &local->sta_bss_list, list) {
+ if (buf + len - current_ev <= IW_EV_ADDR_LEN) {
+ spin_unlock_bh(&local->sta_bss_lock);
+ return -E2BIG;
+ }
+ current_ev = ieee80211_sta_scan_result(dev, bss, current_ev,
+ end_buf);
+ }
+ spin_unlock_bh(&local->sta_bss_lock);
+ return current_ev - buf;
+}
+
+
+int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ kfree(ifsta->extra_ie);
+ if (len == 0) {
+ ifsta->extra_ie = NULL;
+ ifsta->extra_ie_len = 0;
+ return 0;
+ }
+ ifsta->extra_ie = kmalloc(len, GFP_KERNEL);
+ if (!ifsta->extra_ie) {
+ ifsta->extra_ie_len = 0;
+ return -ENOMEM;
+ }
+ memcpy(ifsta->extra_ie, ie, len);
+ ifsta->extra_ie_len = len;
+ return 0;
+}
+
+
+struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
+ struct sk_buff *skb, u8 *bssid,
+ u8 *addr)
+{
+ 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);
+
+ /* TODO: Could consider removing the least recently used entry and
+ * allow new one to be added. */
+ if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: No room for a new IBSS STA "
+ "entry " MAC_FMT "\n", dev->name, MAC_ARG(addr));
+ }
+ return NULL;
+ }
+
+ printk(KERN_DEBUG "%s: Adding new IBSS station " MAC_FMT " (dev=%s)\n",
+ local->mdev->name, MAC_ARG(addr), dev->name);
+
+ sta = sta_info_add(local, dev, addr, GFP_ATOMIC);
+ if (!sta)
+ return NULL;
+
+ sta->supp_rates = sdata->u.sta.supp_rates_bits;
+
+ rate_control_rate_init(sta, local);
+
+ return sta; /* caller will call sta_info_put() */
+}
+
+
+int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+
+ printk(KERN_DEBUG "%s: deauthenticate(reason=%d)\n",
+ dev->name, reason);
+
+ if (sdata->type != IEEE80211_IF_TYPE_STA &&
+ sdata->type != IEEE80211_IF_TYPE_IBSS)
+ return -EINVAL;
+
+ ieee80211_send_deauth(dev, ifsta, reason);
+ ieee80211_set_disassoc(dev, ifsta, 1);
+ return 0;
+}
+
+
+int ieee80211_sta_disassociate(struct net_device *dev, u16 reason)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+
+ printk(KERN_DEBUG "%s: disassociate(reason=%d)\n",
+ dev->name, reason);
+
+ if (sdata->type != IEEE80211_IF_TYPE_STA)
+ return -EINVAL;
+
+ if (!ifsta->associated)
+ return -1;
+
+ ieee80211_send_disassoc(dev, ifsta, reason);
+ ieee80211_set_disassoc(dev, ifsta, 0);
+ return 0;
+}
--- /dev/null
+/*
+ * Michael MIC implementation - optimized for TKIP MIC operations
+ * Copyright 2002-2003, Instant802 Networks, 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.
+ */
+
+#include <linux/types.h>
+
+#include "michael.h"
+
+static inline u32 rotr(u32 val, int bits)
+{
+ return (val >> bits) | (val << (32 - bits));
+}
+
+
+static inline u32 rotl(u32 val, int bits)
+{
+ return (val << bits) | (val >> (32 - bits));
+}
+
+
+static inline u32 xswap(u32 val)
+{
+ return ((val & 0xff00ff00) >> 8) | ((val & 0x00ff00ff) << 8);
+}
+
+
+#define michael_block(l, r) \
+do { \
+ r ^= rotl(l, 17); \
+ l += r; \
+ r ^= xswap(l); \
+ l += r; \
+ r ^= rotl(l, 3); \
+ l += r; \
+ r ^= rotr(l, 2); \
+ l += r; \
+} while (0)
+
+
+static inline u32 michael_get32(u8 *data)
+{
+ return data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
+}
+
+
+static inline void michael_put32(u32 val, u8 *data)
+{
+ data[0] = val & 0xff;
+ data[1] = (val >> 8) & 0xff;
+ data[2] = (val >> 16) & 0xff;
+ data[3] = (val >> 24) & 0xff;
+}
+
+
+void michael_mic(u8 *key, u8 *da, u8 *sa, u8 priority,
+ u8 *data, size_t data_len, u8 *mic)
+{
+ u32 l, r, val;
+ size_t block, blocks, left;
+
+ l = michael_get32(key);
+ r = michael_get32(key + 4);
+
+ /* A pseudo header (DA, SA, Priority, 0, 0, 0) is used in Michael MIC
+ * calculation, but it is _not_ transmitted */
+ l ^= michael_get32(da);
+ michael_block(l, r);
+ l ^= da[4] | (da[5] << 8) | (sa[0] << 16) | (sa[1] << 24);
+ michael_block(l, r);
+ l ^= michael_get32(&sa[2]);
+ michael_block(l, r);
+ l ^= priority;
+ michael_block(l, r);
+
+ /* Real data */
+ blocks = data_len / 4;
+ left = data_len % 4;
+
+ for (block = 0; block < blocks; block++) {
+ l ^= michael_get32(&data[block * 4]);
+ michael_block(l, r);
+ }
+
+ /* Partial block of 0..3 bytes and padding: 0x5a + 4..7 zeros to make
+ * total length a multiple of 4. */
+ val = 0x5a;
+ while (left > 0) {
+ val <<= 8;
+ left--;
+ val |= data[blocks * 4 + left];
+ }
+ l ^= val;
+ michael_block(l, r);
+ /* last block is zero, so l ^ 0 = l */
+ michael_block(l, r);
+
+ michael_put32(l, mic);
+ michael_put32(r, mic + 4);
+}
--- /dev/null
+/*
+ * Michael MIC implementation - optimized for TKIP MIC operations
+ * Copyright 2002-2003, Instant802 Networks, 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 MICHAEL_H
+#define MICHAEL_H
+
+#include <linux/types.h>
+
+#define MICHAEL_MIC_LEN 8
+
+void michael_mic(u8 *key, u8 *da, u8 *sa, u8 priority,
+ u8 *data, size_t data_len, u8 *mic);
+
+#endif /* MICHAEL_H */
--- /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");
+
--- /dev/null
+/*
+ * Copyright 2002-2005, 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.
+ */
+
+#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"
+
+
+/* This is a minimal implementation of TX rate controlling that can be used
+ * as the default when no improved mechanisms are available. */
+
+
+#define RATE_CONTROL_EMERG_DEC 2
+#define RATE_CONTROL_INTERVAL (HZ / 20)
+#define RATE_CONTROL_MIN_TX 10
+
+MODULE_ALIAS("rc80211_default");
+
+static void rate_control_rate_inc(struct ieee80211_local *local,
+ struct sta_info *sta)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_hw_mode *mode;
+ int i = sta->txrate;
+ int maxrate;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+ if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
+ /* forced unicast rate - do not change STA rate */
+ return;
+ }
+
+ mode = local->oper_hw_mode;
+ maxrate = sdata->bss ? sdata->bss->max_ratectrl_rateidx : -1;
+
+ if (i > mode->num_rates)
+ i = mode->num_rates - 2;
+
+ while (i + 1 < mode->num_rates) {
+ i++;
+ if (sta->supp_rates & BIT(i) &&
+ mode->rates[i].flags & IEEE80211_RATE_SUPPORTED &&
+ (maxrate < 0 || i <= maxrate)) {
+ sta->txrate = i;
+ break;
+ }
+ }
+}
+
+
+static void rate_control_rate_dec(struct ieee80211_local *local,
+ struct sta_info *sta)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_hw_mode *mode;
+ int i = sta->txrate;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+ if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
+ /* forced unicast rate - do not change STA rate */
+ return;
+ }
+
+ mode = local->oper_hw_mode;
+ if (i > mode->num_rates)
+ i = mode->num_rates;
+
+ while (i > 0) {
+ i--;
+ if (sta->supp_rates & BIT(i) &&
+ mode->rates[i].flags & IEEE80211_RATE_SUPPORTED) {
+ sta->txrate = i;
+ break;
+ }
+ }
+}
+
+
+static struct ieee80211_rate *
+rate_control_lowest_rate(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];
+
+ if (rate->flags & IEEE80211_RATE_SUPPORTED)
+ return rate;
+ }
+
+ printk(KERN_DEBUG "rate_control_lowest_rate - no supported rates "
+ "found\n");
+ return &mode->rates[0];
+}
+
+
+struct global_rate_control {
+ int dummy;
+};
+
+struct sta_rate_control {
+ unsigned long last_rate_change;
+ u32 tx_num_failures;
+ u32 tx_num_xmit;
+
+ unsigned long avg_rate_update;
+ u32 tx_avg_rate_sum;
+ u32 tx_avg_rate_num;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct dentry *tx_avg_rate_sum_dentry;
+ struct dentry *tx_avg_rate_num_dentry;
+#endif
+};
+
+
+static void rate_control_simple_tx_status(void *priv, struct net_device *dev,
+ struct sk_buff *skb,
+ struct ieee80211_tx_status *status)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct sta_info *sta;
+ struct sta_rate_control *srctrl;
+
+ sta = sta_info_get(local, hdr->addr1);
+
+ if (!sta)
+ return;
+
+ 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++;
+ sta->tx_num_mpdu_fail++;
+ } else {
+ sta->last_ack_rssi[0] = sta->last_ack_rssi[1];
+ sta->last_ack_rssi[1] = sta->last_ack_rssi[2];
+ sta->last_ack_rssi[2] = status->ack_signal;
+ sta->tx_num_consecutive_failures = 0;
+ sta->tx_num_mpdu_ok++;
+ }
+ sta->tx_retry_count += status->retry_count;
+ sta->tx_num_mpdu_fail += status->retry_count;
+
+ if (time_after(jiffies,
+ srctrl->last_rate_change + RATE_CONTROL_INTERVAL) &&
+ srctrl->tx_num_xmit > RATE_CONTROL_MIN_TX) {
+ u32 per_failed;
+ srctrl->last_rate_change = jiffies;
+
+ per_failed = (100 * sta->tx_num_mpdu_fail) /
+ (sta->tx_num_mpdu_fail + sta->tx_num_mpdu_ok);
+ /* TODO: calculate average per_failed to make adjusting
+ * parameters easier */
+#if 0
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "MPDU fail=%d ok=%d per_failed=%d\n",
+ sta->tx_num_mpdu_fail, sta->tx_num_mpdu_ok,
+ per_failed);
+ }
+#endif
+
+ if (per_failed > local->rate_ctrl_num_down) {
+ rate_control_rate_dec(local, sta);
+ } else if (per_failed < local->rate_ctrl_num_up) {
+ rate_control_rate_inc(local, sta);
+ }
+ srctrl->tx_avg_rate_sum += status->control.rate->rate;
+ srctrl->tx_avg_rate_num++;
+ srctrl->tx_num_failures = 0;
+ srctrl->tx_num_xmit = 0;
+ } else if (sta->tx_num_consecutive_failures >=
+ RATE_CONTROL_EMERG_DEC) {
+ rate_control_rate_dec(local, sta);
+ }
+
+ if (srctrl->avg_rate_update + 60 * HZ < jiffies) {
+ srctrl->avg_rate_update = jiffies;
+ if (srctrl->tx_avg_rate_num > 0) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: STA " MAC_FMT " Average rate: "
+ "%d (%d/%d)\n",
+ dev->name, MAC_ARG(sta->addr),
+ srctrl->tx_avg_rate_sum /
+ srctrl->tx_avg_rate_num,
+ srctrl->tx_avg_rate_sum,
+ srctrl->tx_avg_rate_num);
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+ srctrl->tx_avg_rate_sum = 0;
+ srctrl->tx_avg_rate_num = 0;
+ }
+ }
+
+ sta_info_put(sta);
+}
+
+
+static struct ieee80211_rate *
+rate_control_simple_get_rate(void *priv, struct net_device *dev,
+ struct sk_buff *skb,
+ struct rate_control_extra *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_hw_mode *mode = extra->mode;
+ struct sta_info *sta;
+ int rateidx, nonerp_idx;
+ u16 fc;
+
+ memset(extra, 0, sizeof(*extra));
+
+ fc = le16_to_cpu(hdr->frame_control);
+ if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
+ (hdr->addr1[0] & 0x01)) {
+ /* Send management frames and broadcast/multicast data using
+ * lowest rate. */
+ /* TODO: this could probably be improved.. */
+ return rate_control_lowest_rate(local, mode);
+ }
+
+ sta = sta_info_get(local, hdr->addr1);
+
+ if (!sta)
+ return rate_control_lowest_rate(local, mode);
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->bss && sdata->bss->force_unicast_rateidx > -1)
+ sta->txrate = sdata->bss->force_unicast_rateidx;
+
+ rateidx = sta->txrate;
+
+ if (rateidx >= mode->num_rates)
+ rateidx = mode->num_rates - 1;
+
+ sta->last_txrate = rateidx;
+ nonerp_idx = rateidx;
+ while (nonerp_idx > 0 &&
+ ((mode->rates[nonerp_idx].flags & IEEE80211_RATE_ERP) ||
+ !(mode->rates[nonerp_idx].flags & IEEE80211_RATE_SUPPORTED) ||
+ !(sta->supp_rates & BIT(nonerp_idx))))
+ nonerp_idx--;
+ extra->nonerp = &mode->rates[nonerp_idx];
+
+ sta_info_put(sta);
+
+ return &mode->rates[rateidx];
+}
+
+
+static void rate_control_simple_rate_init(void *priv, void *priv_sta,
+ struct ieee80211_local *local,
+ struct sta_info *sta)
+{
+ struct ieee80211_hw_mode *mode;
+ int i;
+ sta->txrate = 0;
+ mode = local->oper_hw_mode;
+ /* TODO: This routine should consider using RSSI from previous packets
+ * as we need to have IEEE 802.1X auth succeed immediately after assoc..
+ * Until that method is implemented, we will use the lowest supported rate
+ * as a workaround, */
+ for (i = 0; i < mode->num_rates; i++) {
+ if ((sta->supp_rates & BIT(i)) &&
+ (mode->rates[i].flags & IEEE80211_RATE_SUPPORTED))
+ sta->txrate = i;
+ break;
+ }
+}
+
+
+static void * rate_control_simple_alloc(struct ieee80211_local *local)
+{
+ struct global_rate_control *rctrl;
+
+ rctrl = kzalloc(sizeof(*rctrl), GFP_ATOMIC);
+
+ return rctrl;
+}
+
+
+static void rate_control_simple_free(void *priv)
+{
+ struct global_rate_control *rctrl = priv;
+ kfree(rctrl);
+}
+
+
+static void rate_control_simple_clear(void *priv)
+{
+}
+
+
+static void * rate_control_simple_alloc_sta(void *priv, gfp_t gfp)
+{
+ struct sta_rate_control *rctrl;
+
+ rctrl = kzalloc(sizeof(*rctrl), gfp);
+
+ return rctrl;
+}
+
+
+static void rate_control_simple_free_sta(void *priv, void *priv_sta)
+{
+ struct sta_rate_control *rctrl = priv_sta;
+ kfree(rctrl);
+}
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+
+static int open_file_generic(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+static ssize_t sta_tx_avg_rate_sum_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct sta_rate_control *srctrl = file->private_data;
+ char buf[20];
+
+ sprintf(buf, "%d\n", srctrl->tx_avg_rate_sum);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
+}
+
+static const struct file_operations sta_tx_avg_rate_sum_ops = {
+ .read = sta_tx_avg_rate_sum_read,
+ .open = open_file_generic,
+};
+
+static ssize_t sta_tx_avg_rate_num_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct sta_rate_control *srctrl = file->private_data;
+ char buf[20];
+
+ sprintf(buf, "%d\n", srctrl->tx_avg_rate_num);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
+}
+
+static const struct file_operations sta_tx_avg_rate_num_ops = {
+ .read = sta_tx_avg_rate_num_read,
+ .open = open_file_generic,
+};
+
+static void rate_control_simple_add_sta_debugfs(void *priv, void *priv_sta,
+ struct dentry *dir)
+{
+ struct sta_rate_control *srctrl = priv_sta;
+
+ srctrl->tx_avg_rate_num_dentry =
+ debugfs_create_file("rc_simple_sta_tx_avg_rate_num", 0400,
+ dir, srctrl, &sta_tx_avg_rate_num_ops);
+ srctrl->tx_avg_rate_sum_dentry =
+ debugfs_create_file("rc_simple_sta_tx_avg_rate_sum", 0400,
+ dir, srctrl, &sta_tx_avg_rate_sum_ops);
+}
+
+static void rate_control_simple_remove_sta_debugfs(void *priv, void *priv_sta)
+{
+ struct sta_rate_control *srctrl = priv_sta;
+
+ debugfs_remove(srctrl->tx_avg_rate_sum_dentry);
+ debugfs_remove(srctrl->tx_avg_rate_num_dentry);
+}
+#endif
+
+static struct rate_control_ops rate_control_simple = {
+ .module = THIS_MODULE,
+ .name = "simple",
+ .tx_status = rate_control_simple_tx_status,
+ .get_rate = rate_control_simple_get_rate,
+ .rate_init = rate_control_simple_rate_init,
+ .clear = rate_control_simple_clear,
+ .alloc = rate_control_simple_alloc,
+ .free = rate_control_simple_free,
+ .alloc_sta = rate_control_simple_alloc_sta,
+ .free_sta = rate_control_simple_free_sta,
+#ifdef CONFIG_MAC80211_DEBUGFS
+ .add_sta_debugfs = rate_control_simple_add_sta_debugfs,
+ .remove_sta_debugfs = rate_control_simple_remove_sta_debugfs,
+#endif
+};
+
+
+static int __init rate_control_simple_init(void)
+{
+ return ieee80211_rate_control_register(&rate_control_simple);
+}
+
+
+static void __exit rate_control_simple_exit(void)
+{
+ ieee80211_rate_control_unregister(&rate_control_simple);
+}
+
+
+module_init(rate_control_simple_init);
+module_exit(rate_control_simple_exit);
+
+MODULE_DESCRIPTION("Simple rate control algorithm for ieee80211");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 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/if_arp.h>
+
+#include <net/mac80211.h>
+#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 */
+static void sta_info_hash_add(struct ieee80211_local *local,
+ struct sta_info *sta)
+{
+ sta->hnext = local->sta_hash[STA_HASH(sta->addr)];
+ local->sta_hash[STA_HASH(sta->addr)] = sta;
+}
+
+
+/* Caller must hold local->sta_lock */
+static void sta_info_hash_del(struct ieee80211_local *local,
+ struct sta_info *sta, int dls)
+{
+ 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;
+ local->sta_hash[STA_HASH(sta->addr)] = s->hnext;
+ return;
+ }
+
+ while (s->hnext && memcmp(s->hnext->addr, sta->addr, ETH_ALEN) != 0)
+ 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));
+}
+
+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)
+{
+ 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) {
+ __sta_info_get(sta);
+ break;
+ }
+ sta = sta->hnext;
+ }
+ spin_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;
+ struct ieee80211_hw_mode *mode;
+ int min_txrate = 9999999;
+ int i;
+
+ spin_lock_bh(&local->sta_lock);
+ mode = local->oper_hw_mode;
+ for (i = 0; i < STA_HASH_SIZE; i++) {
+ sta = local->sta_hash[i];
+ while (sta) {
+ if (sta->txrate < min_txrate)
+ min_txrate = sta->txrate;
+ sta = sta->hnext;
+ }
+ }
+ spin_unlock_bh(&local->sta_lock);
+ if (min_txrate == 9999999)
+ min_txrate = 0;
+
+ return mode->rates[min_txrate].rate;
+}
+
+
+static void sta_info_release(struct kref *kref)
+{
+ struct sta_info *sta = container_of(kref, struct sta_info, kref);
+ struct ieee80211_local *local = sta->local;
+ struct sk_buff *skb;
+
+ /* free sta structure; it has already been removed from
+ * hash table etc. external structures. Make sure that all
+ * buffered frames are release (one might have been added
+ * after sta_info_free() was called). */
+ while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
+ local->total_ps_buffered--;
+ dev_kfree_skb_any(skb);
+ }
+ while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
+ dev_kfree_skb_any(skb);
+ }
+ 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);
+}
+
+
+void sta_info_put(struct sta_info *sta)
+{
+ kref_put(&sta->kref, sta_info_release);
+}
+EXPORT_SYMBOL(sta_info_put);
+
+
+struct sta_info * sta_info_add(struct ieee80211_local *local,
+ struct net_device *dev, u8 *addr, gfp_t gfp)
+{
+ struct sta_info *sta;
+
+ sta = kzalloc(sizeof(*sta), gfp);
+ if (!sta)
+ return NULL;
+
+ kref_init(&sta->kref);
+
+ sta->rate_ctrl = rate_control_get(local->rate_ctrl);
+ 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;
+ }
+
+ memcpy(sta->addr, addr, ETH_ALEN);
+ sta->local = local;
+ sta->dev = dev;
+ skb_queue_head_init(&sta->ps_tx_buf);
+ 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);
+ 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;
+
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: Added STA " MAC_FMT "\n",
+ local->mdev->name, 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);
+ }
+#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)
+{
+ struct ieee80211_local *local = sta->local;
+ struct ieee80211_sub_if_data *sdata;
+
+ sta_info_hash_del(local, sta, 0);
+ list_del(&sta->list);
+ sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+ if (sta->flags & WLAN_STA_PS) {
+ sta->flags &= ~WLAN_STA_PS;
+ if (sdata->bss)
+ atomic_dec(&sdata->bss->num_sta_ps);
+ }
+ local->num_sta--;
+ sta_info_remove_aid_ptr(sta);
+}
+
+void sta_info_free(struct sta_info *sta, int locked)
+{
+ 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);
+
+ while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
+ local->total_ps_buffered--;
+ dev_kfree_skb_any(skb);
+ }
+ while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
+ dev_kfree_skb_any(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_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);
+}
+
+
+static inline int sta_info_buffer_expired(struct ieee80211_local *local,
+ struct sta_info *sta,
+ struct sk_buff *skb)
+{
+ struct ieee80211_tx_packet_data *pkt_data;
+ int timeout;
+
+ if (!skb)
+ return 0;
+
+ pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
+
+ /* Timeout: (2 * listen_interval * beacon_int * 1024 / 1000000) sec */
+ timeout = (sta->listen_interval * local->hw.conf.beacon_int * 32 /
+ 15625) * HZ;
+ if (timeout < STA_TX_BUFFER_EXPIRE)
+ timeout = STA_TX_BUFFER_EXPIRE;
+ return time_after(jiffies, pkt_data->jiffies + timeout);
+}
+
+
+static void sta_info_cleanup_expire_buffered(struct ieee80211_local *local,
+ struct sta_info *sta)
+{
+ unsigned long flags;
+ struct sk_buff *skb;
+
+ if (skb_queue_empty(&sta->ps_tx_buf))
+ return;
+
+ for (;;) {
+ spin_lock_irqsave(&sta->ps_tx_buf.lock, flags);
+ skb = skb_peek(&sta->ps_tx_buf);
+ if (sta_info_buffer_expired(local, sta, skb)) {
+ skb = __skb_dequeue(&sta->ps_tx_buf);
+ if (skb_queue_empty(&sta->ps_tx_buf))
+ sta->flags &= ~WLAN_STA_TIM;
+ } else
+ skb = NULL;
+ spin_unlock_irqrestore(&sta->ps_tx_buf.lock, flags);
+
+ if (skb) {
+ local->total_ps_buffered--;
+ printk(KERN_DEBUG "Buffered frame expired (STA "
+ MAC_FMT ")\n", MAC_ARG(sta->addr));
+ dev_kfree_skb(skb);
+ } else
+ break;
+ }
+}
+
+
+static void sta_info_cleanup(unsigned long data)
+{
+ struct ieee80211_local *local = (struct ieee80211_local *) data;
+ struct sta_info *sta;
+
+ spin_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);
+
+ local->sta_cleanup.expires = jiffies + STA_INFO_CLEANUP_INTERVAL;
+ add_timer(&local->sta_cleanup);
+}
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+static void sta_info_debugfs_add_task(struct work_struct *work)
+{
+ struct ieee80211_local *local =
+ 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);
+ list_for_each_entry(tmp, &local->sta_list, list) {
+ if (!tmp->debugfs_registered) {
+ sta = tmp;
+ __sta_info_get(sta);
+ break;
+ }
+ }
+ spin_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);
+ }
+}
+#endif
+
+void sta_info_init(struct ieee80211_local *local)
+{
+ spin_lock_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;
+ local->sta_cleanup.data = (unsigned long) local;
+ local->sta_cleanup.function = sta_info_cleanup;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ INIT_WORK(&local->sta_debugfs_add, sta_info_debugfs_add_task);
+#endif
+}
+
+int sta_info_start(struct ieee80211_local *local)
+{
+ add_timer(&local->sta_cleanup);
+ return 0;
+}
+
+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);
+ }
+}
+
+void sta_info_remove_aid_ptr(struct sta_info *sta)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ if (sta->aid <= 0)
+ return;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+
+ if (sdata->local->ops->set_tim)
+ sdata->local->ops->set_tim(local_to_hw(sdata->local),
+ sta->aid, 0);
+ if (sdata->bss)
+ __bss_tim_clear(sdata->bss, sta->aid);
+}
+
+
+/**
+ * sta_info_flush - flush matching STA entries from the STA table
+ * @local: local interface data
+ * @dev: matching rule for the net device (sta->dev) or %NULL to match all STAs
+ */
+void sta_info_flush(struct ieee80211_local *local, struct net_device *dev)
+{
+ struct sta_info *sta, *tmp;
+
+ spin_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);
+}
--- /dev/null
+/*
+ * Copyright 2002-2005, 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 STA_INFO_H
+#define STA_INFO_H
+
+#include <linux/list.h>
+#include <linux/types.h>
+#include <linux/if_ether.h>
+#include <linux/kref.h>
+#include "ieee80211_key.h"
+
+/* Stations flags (struct sta_info::flags) */
+#define WLAN_STA_AUTH BIT(0)
+#define WLAN_STA_ASSOC BIT(1)
+#define WLAN_STA_PS BIT(2)
+#define WLAN_STA_TIM BIT(3) /* TIM bit is on for PS stations */
+#define WLAN_STA_PERM BIT(4) /* permanent; do not remove entry on expiration */
+#define WLAN_STA_AUTHORIZED BIT(5) /* If 802.1X is used, this flag is
+ * controlling whether STA is authorized to
+ * send and receive non-IEEE 802.1X frames
+ */
+#define WLAN_STA_SHORT_PREAMBLE BIT(7)
+#define WLAN_STA_WME BIT(9)
+#define WLAN_STA_HT BIT(10)
+#define WLAN_STA_WDS BIT(27)
+
+
+struct sta_info {
+ struct kref kref;
+ struct list_head list;
+ struct sta_info *hnext; /* next entry in hash table list */
+
+ struct ieee80211_local *local;
+
+ u8 addr[ETH_ALEN];
+ u16 aid; /* STA's unique AID (1..2007), 0 = not yet assigned */
+ u32 flags; /* WLAN_STA_ */
+
+ struct sk_buff_head ps_tx_buf; /* buffer of TX frames for station in
+ * power saving state */
+ int pspoll; /* whether STA has send a PS Poll frame */
+ struct sk_buff_head tx_filtered; /* buffer of TX frames that were
+ * already given to low-level driver,
+ * but were filtered */
+ int clear_dst_mask;
+
+ unsigned long rx_packets, tx_packets; /* number of RX/TX MSDUs */
+ unsigned long rx_bytes, tx_bytes;
+ unsigned long tx_retry_failed, tx_retry_count;
+ unsigned long tx_filtered_count;
+
+ unsigned int wep_weak_iv_count; /* number of RX frames with weak IV */
+
+ unsigned long last_rx;
+ u32 supp_rates; /* bitmap of supported rates in local->curr_rates */
+ int txrate; /* index in local->curr_rates */
+ int last_txrate; /* last rate used to send a frame to this STA */
+ int last_nonerp_idx;
+
+ struct net_device *dev; /* which net device is this station associated
+ * to */
+
+ struct ieee80211_key *key;
+
+ u32 tx_num_consecutive_failures;
+ u32 tx_num_mpdu_ok;
+ u32 tx_num_mpdu_fail;
+
+ struct rate_control_ref *rate_ctrl;
+ void *rate_ctrl_priv;
+
+ /* last received seq/frag number from this STA (per RX queue) */
+ __le16 last_seq_ctrl[NUM_RX_DATA_QUEUES];
+ unsigned long num_duplicates; /* number of duplicate frames received
+ * from this STA */
+ unsigned long tx_fragments; /* number of transmitted MPDUs */
+ unsigned long rx_fragments; /* number of received MPDUs */
+ unsigned long rx_dropped; /* number of dropped MPDUs from this STA */
+
+ int last_rssi; /* RSSI of last received frame from this STA */
+ int last_signal; /* signal of last received frame from this STA */
+ int last_noise; /* noise of last received frame from this STA */
+ int last_ack_rssi[3]; /* RSSI of last received ACKs from this STA */
+ unsigned long last_ack;
+ 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
+ struct sta_info_debugfsdentries {
+ struct dentry *dir;
+ struct dentry *flags;
+ struct dentry *num_ps_buf_frames;
+ struct dentry *last_ack_rssi;
+ struct dentry *last_ack_ms;
+ struct dentry *inactive_ms;
+ struct dentry *last_seq_ctrl;
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+ struct dentry *wme_rx_queue;
+ struct dentry *wme_tx_queue;
+#endif
+ } debugfs;
+#endif
+};
+
+
+/* Maximum number of concurrently registered stations */
+#define MAX_STA_COUNT 2007
+
+#define STA_HASH_SIZE 256
+#define STA_HASH(sta) (sta[5])
+
+
+/* Maximum number of frames to buffer per power saving station */
+#define STA_MAX_TX_BUFFER 128
+
+/* Minimum buffered frame expiry time. If STA uses listen interval that is
+ * smaller than this value, the minimum value here is used instead. */
+#define STA_TX_BUFFER_EXPIRE (10 * HZ)
+
+/* How often station data is cleaned up (e.g., expiration of buffered frames)
+ */
+#define STA_INFO_CLEANUP_INTERVAL (10 * HZ)
+
+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_init(struct ieee80211_local *local);
+int sta_info_start(struct ieee80211_local *local);
+void sta_info_stop(struct ieee80211_local *local);
+void sta_info_remove_aid_ptr(struct sta_info *sta);
+void sta_info_flush(struct ieee80211_local *local, struct net_device *dev);
+
+#endif /* STA_INFO_H */
--- /dev/null
+/*
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/netdevice.h>
+
+#include <net/mac80211.h>
+#include "ieee80211_key.h"
+#include "tkip.h"
+#include "wep.h"
+
+
+/* TKIP key mixing functions */
+
+
+#define PHASE1_LOOP_COUNT 8
+
+
+/* 2-byte by 2-byte subset of the full AES S-box table; second part of this
+ * table is identical to first part but byte-swapped */
+static const u16 tkip_sbox[256] =
+{
+ 0xC6A5, 0xF884, 0xEE99, 0xF68D, 0xFF0D, 0xD6BD, 0xDEB1, 0x9154,
+ 0x6050, 0x0203, 0xCEA9, 0x567D, 0xE719, 0xB562, 0x4DE6, 0xEC9A,
+ 0x8F45, 0x1F9D, 0x8940, 0xFA87, 0xEF15, 0xB2EB, 0x8EC9, 0xFB0B,
+ 0x41EC, 0xB367, 0x5FFD, 0x45EA, 0x23BF, 0x53F7, 0xE496, 0x9B5B,
+ 0x75C2, 0xE11C, 0x3DAE, 0x4C6A, 0x6C5A, 0x7E41, 0xF502, 0x834F,
+ 0x685C, 0x51F4, 0xD134, 0xF908, 0xE293, 0xAB73, 0x6253, 0x2A3F,
+ 0x080C, 0x9552, 0x4665, 0x9D5E, 0x3028, 0x37A1, 0x0A0F, 0x2FB5,
+ 0x0E09, 0x2436, 0x1B9B, 0xDF3D, 0xCD26, 0x4E69, 0x7FCD, 0xEA9F,
+ 0x121B, 0x1D9E, 0x5874, 0x342E, 0x362D, 0xDCB2, 0xB4EE, 0x5BFB,
+ 0xA4F6, 0x764D, 0xB761, 0x7DCE, 0x527B, 0xDD3E, 0x5E71, 0x1397,
+ 0xA6F5, 0xB968, 0x0000, 0xC12C, 0x4060, 0xE31F, 0x79C8, 0xB6ED,
+ 0xD4BE, 0x8D46, 0x67D9, 0x724B, 0x94DE, 0x98D4, 0xB0E8, 0x854A,
+ 0xBB6B, 0xC52A, 0x4FE5, 0xED16, 0x86C5, 0x9AD7, 0x6655, 0x1194,
+ 0x8ACF, 0xE910, 0x0406, 0xFE81, 0xA0F0, 0x7844, 0x25BA, 0x4BE3,
+ 0xA2F3, 0x5DFE, 0x80C0, 0x058A, 0x3FAD, 0x21BC, 0x7048, 0xF104,
+ 0x63DF, 0x77C1, 0xAF75, 0x4263, 0x2030, 0xE51A, 0xFD0E, 0xBF6D,
+ 0x814C, 0x1814, 0x2635, 0xC32F, 0xBEE1, 0x35A2, 0x88CC, 0x2E39,
+ 0x9357, 0x55F2, 0xFC82, 0x7A47, 0xC8AC, 0xBAE7, 0x322B, 0xE695,
+ 0xC0A0, 0x1998, 0x9ED1, 0xA37F, 0x4466, 0x547E, 0x3BAB, 0x0B83,
+ 0x8CCA, 0xC729, 0x6BD3, 0x283C, 0xA779, 0xBCE2, 0x161D, 0xAD76,
+ 0xDB3B, 0x6456, 0x744E, 0x141E, 0x92DB, 0x0C0A, 0x486C, 0xB8E4,
+ 0x9F5D, 0xBD6E, 0x43EF, 0xC4A6, 0x39A8, 0x31A4, 0xD337, 0xF28B,
+ 0xD532, 0x8B43, 0x6E59, 0xDAB7, 0x018C, 0xB164, 0x9CD2, 0x49E0,
+ 0xD8B4, 0xACFA, 0xF307, 0xCF25, 0xCAAF, 0xF48E, 0x47E9, 0x1018,
+ 0x6FD5, 0xF088, 0x4A6F, 0x5C72, 0x3824, 0x57F1, 0x73C7, 0x9751,
+ 0xCB23, 0xA17C, 0xE89C, 0x3E21, 0x96DD, 0x61DC, 0x0D86, 0x0F85,
+ 0xE090, 0x7C42, 0x71C4, 0xCCAA, 0x90D8, 0x0605, 0xF701, 0x1C12,
+ 0xC2A3, 0x6A5F, 0xAEF9, 0x69D0, 0x1791, 0x9958, 0x3A27, 0x27B9,
+ 0xD938, 0xEB13, 0x2BB3, 0x2233, 0xD2BB, 0xA970, 0x0789, 0x33A7,
+ 0x2DB6, 0x3C22, 0x1592, 0xC920, 0x8749, 0xAAFF, 0x5078, 0xA57A,
+ 0x038F, 0x59F8, 0x0980, 0x1A17, 0x65DA, 0xD731, 0x84C6, 0xD0B8,
+ 0x82C3, 0x29B0, 0x5A77, 0x1E11, 0x7BCB, 0xA8FC, 0x6DD6, 0x2C3A,
+};
+
+
+static inline u16 Mk16(u8 x, u8 y)
+{
+ return ((u16) x << 8) | (u16) y;
+}
+
+
+static inline u8 Hi8(u16 v)
+{
+ return v >> 8;
+}
+
+
+static inline u8 Lo8(u16 v)
+{
+ return v & 0xff;
+}
+
+
+static inline u16 Hi16(u32 v)
+{
+ return v >> 16;
+}
+
+
+static inline u16 Lo16(u32 v)
+{
+ return v & 0xffff;
+}
+
+
+static inline u16 RotR1(u16 v)
+{
+ return (v >> 1) | ((v & 0x0001) << 15);
+}
+
+
+static inline u16 tkip_S(u16 val)
+{
+ u16 a = tkip_sbox[Hi8(val)];
+
+ return tkip_sbox[Lo8(val)] ^ Hi8(a) ^ (Lo8(a) << 8);
+}
+
+
+
+/* P1K := Phase1(TA, TK, TSC)
+ * TA = transmitter address (48 bits)
+ * TK = dot11DefaultKeyValue or dot11KeyMappingValue (128 bits)
+ * TSC = TKIP sequence counter (48 bits, only 32 msb bits used)
+ * P1K: 80 bits
+ */
+static void tkip_mixing_phase1(const u8 *ta, const u8 *tk, u32 tsc_IV32,
+ u16 *p1k)
+{
+ int i, j;
+
+ p1k[0] = Lo16(tsc_IV32);
+ p1k[1] = Hi16(tsc_IV32);
+ p1k[2] = Mk16(ta[1], ta[0]);
+ p1k[3] = Mk16(ta[3], ta[2]);
+ p1k[4] = Mk16(ta[5], ta[4]);
+
+ for (i = 0; i < PHASE1_LOOP_COUNT; i++) {
+ j = 2 * (i & 1);
+ p1k[0] += tkip_S(p1k[4] ^ Mk16(tk[ 1 + j], tk[ 0 + j]));
+ p1k[1] += tkip_S(p1k[0] ^ Mk16(tk[ 5 + j], tk[ 4 + j]));
+ p1k[2] += tkip_S(p1k[1] ^ Mk16(tk[ 9 + j], tk[ 8 + j]));
+ p1k[3] += tkip_S(p1k[2] ^ Mk16(tk[13 + j], tk[12 + j]));
+ p1k[4] += tkip_S(p1k[3] ^ Mk16(tk[ 1 + j], tk[ 0 + j])) + i;
+ }
+}
+
+
+static void tkip_mixing_phase2(const u16 *p1k, const u8 *tk, u16 tsc_IV16,
+ u8 *rc4key)
+{
+ u16 ppk[6];
+ int i;
+
+ ppk[0] = p1k[0];
+ ppk[1] = p1k[1];
+ ppk[2] = p1k[2];
+ ppk[3] = p1k[3];
+ ppk[4] = p1k[4];
+ ppk[5] = p1k[4] + tsc_IV16;
+
+ ppk[0] += tkip_S(ppk[5] ^ Mk16(tk[ 1], tk[ 0]));
+ ppk[1] += tkip_S(ppk[0] ^ Mk16(tk[ 3], tk[ 2]));
+ ppk[2] += tkip_S(ppk[1] ^ Mk16(tk[ 5], tk[ 4]));
+ ppk[3] += tkip_S(ppk[2] ^ Mk16(tk[ 7], tk[ 6]));
+ ppk[4] += tkip_S(ppk[3] ^ Mk16(tk[ 9], tk[ 8]));
+ ppk[5] += tkip_S(ppk[4] ^ Mk16(tk[11], tk[10]));
+ ppk[0] += RotR1(ppk[5] ^ Mk16(tk[13], tk[12]));
+ ppk[1] += RotR1(ppk[0] ^ Mk16(tk[15], tk[14]));
+ ppk[2] += RotR1(ppk[1]);
+ ppk[3] += RotR1(ppk[2]);
+ ppk[4] += RotR1(ppk[3]);
+ ppk[5] += RotR1(ppk[4]);
+
+ rc4key[0] = Hi8(tsc_IV16);
+ rc4key[1] = (Hi8(tsc_IV16) | 0x20) & 0x7f;
+ rc4key[2] = Lo8(tsc_IV16);
+ rc4key[3] = Lo8((ppk[5] ^ Mk16(tk[1], tk[0])) >> 1);
+
+ for (i = 0; i < 6; i++) {
+ rc4key[4 + 2 * i] = Lo8(ppk[i]);
+ rc4key[5 + 2 * i] = Hi8(ppk[i]);
+ }
+}
+
+
+/* Add TKIP IV and Ext. IV at @pos. @iv0, @iv1, and @iv2 are the first octets
+ * of the IV. Returns pointer to the octet following IVs (i.e., beginning of
+ * the packet payload). */
+u8 * ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key,
+ u8 iv0, u8 iv1, u8 iv2)
+{
+ *pos++ = iv0;
+ *pos++ = iv1;
+ *pos++ = iv2;
+ *pos++ = (key->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;
+ *pos++ = (key->u.tkip.iv32 >> 24) & 0xff;
+ return pos;
+}
+
+
+void ieee80211_tkip_gen_phase1key(struct ieee80211_key *key, u8 *ta,
+ u16 *phase1key)
+{
+ tkip_mixing_phase1(ta, &key->key[ALG_TKIP_TEMP_ENCR_KEY],
+ key->u.tkip.iv32, phase1key);
+}
+
+void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta,
+ u8 *rc4key)
+{
+ /* 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],
+ 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],
+ key->u.tkip.iv16, rc4key);
+}
+
+/* Encrypt packet payload with TKIP using @key. @pos is a pointer to the
+ * beginning of the buffer containing payload. This payload must include
+ * headroom of eight octets for IV and Ext. IV and taildroom of four octets
+ * for ICV. @payload_len is the length of payload (_not_ including extra
+ * headroom and tailroom). @ta is the transmitter addresses. */
+void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm,
+ struct ieee80211_key *key,
+ u8 *pos, size_t payload_len, u8 *ta)
+{
+ u8 rc4key[16];
+
+ ieee80211_tkip_gen_rc4key(key, ta, rc4key);
+ pos = ieee80211_tkip_add_iv(pos, key, rc4key[0], rc4key[1], rc4key[2]);
+ ieee80211_wep_encrypt_data(tfm, rc4key, 16, pos, payload_len);
+}
+
+
+/* Decrypt packet payload with TKIP using @key. @pos is a pointer to the
+ * beginning of the buffer containing IEEE 802.11 header payload, i.e.,
+ * including IV, Ext. IV, real data, Michael MIC, ICV. @payload_len is the
+ * length of payload, including IV, Ext. IV, MIC, ICV. */
+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)
+{
+ u32 iv32;
+ u32 iv16;
+ u8 rc4key[16], keyid, *pos = payload;
+ int res;
+
+ if (payload_len < 12)
+ return -1;
+
+ iv16 = (pos[0] << 8) | pos[2];
+ keyid = pos[3];
+ iv32 = pos[4] | (pos[5] << 8) | (pos[6] << 16) | (pos[7] << 24);
+ pos += 8;
+#ifdef CONFIG_TKIP_DEBUG
+ {
+ int i;
+ printk(KERN_DEBUG "TKIP decrypt: data(len=%zd)", payload_len);
+ for (i = 0; i < payload_len; i++)
+ printk(" %02x", payload[i]);
+ printk("\n");
+ printk(KERN_DEBUG "TKIP decrypt: iv16=%04x iv32=%08x\n",
+ iv16, iv32);
+ }
+#endif /* CONFIG_TKIP_DEBUG */
+
+ if (!(keyid & (1 << 5)))
+ return TKIP_DECRYPT_NO_EXT_IV;
+
+ if ((keyid >> 6) != key->keyidx)
+ return TKIP_DECRYPT_INVALID_KEYIDX;
+
+ if (key->u.tkip.rx_initialized[queue] &&
+ (iv32 < key->u.tkip.iv32_rx[queue] ||
+ (iv32 == key->u.tkip.iv32_rx[queue] &&
+ iv16 <= key->u.tkip.iv16_rx[queue]))) {
+#ifdef CONFIG_TKIP_DEBUG
+ printk(KERN_DEBUG "TKIP replay detected for RX frame from "
+ MAC_FMT " (RX IV (%04x,%02x) <= prev. IV (%04x,%02x)\n",
+ MAC_ARG(ta),
+ iv32, iv16, key->u.tkip.iv32_rx[queue],
+ key->u.tkip.iv16_rx[queue]);
+#endif /* CONFIG_TKIP_DEBUG */
+ return TKIP_DECRYPT_REPLAY;
+ }
+
+ if (only_iv) {
+ res = TKIP_DECRYPT_OK;
+ key->u.tkip.rx_initialized[queue] = 1;
+ goto done;
+ }
+
+ 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],
+ iv32, key->u.tkip.p1k_rx[queue]);
+#ifdef CONFIG_TKIP_DEBUG
+ {
+ int i;
+ printk(KERN_DEBUG "TKIP decrypt: Phase1 TA=" MAC_FMT
+ " TK=", MAC_ARG(ta));
+ for (i = 0; i < 16; i++)
+ printk("%02x ",
+ key->key[ALG_TKIP_TEMP_ENCR_KEY + i]);
+ printk("\n");
+ printk(KERN_DEBUG "TKIP decrypt: P1K=");
+ for (i = 0; i < 5; i++)
+ printk("%04x ", key->u.tkip.p1k_rx[queue][i]);
+ printk("\n");
+ }
+#endif /* CONFIG_TKIP_DEBUG */
+ }
+
+ tkip_mixing_phase2(key->u.tkip.p1k_rx[queue],
+ &key->key[ALG_TKIP_TEMP_ENCR_KEY],
+ iv16, rc4key);
+#ifdef CONFIG_TKIP_DEBUG
+ {
+ int i;
+ printk(KERN_DEBUG "TKIP decrypt: Phase2 rc4key=");
+ for (i = 0; i < 16; i++)
+ printk("%02x ", rc4key[i]);
+ printk("\n");
+ }
+#endif /* 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;
+ }
+
+ return res;
+}
+
+
--- /dev/null
+/*
+ * Copyright 2002-2004, Instant802 Networks, 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 TKIP_H
+#define TKIP_H
+
+#include <linux/types.h>
+#include <linux/crypto.h>
+#include "ieee80211_key.h"
+
+u8 * ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key,
+ u8 iv0, u8 iv1, u8 iv2);
+void ieee80211_tkip_gen_phase1key(struct ieee80211_key *key, u8 *ta,
+ u16 *phase1key);
+void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta,
+ u8 *rc4key);
+void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm,
+ struct ieee80211_key *key,
+ u8 *pos, size_t payload_len, u8 *ta);
+enum {
+ TKIP_DECRYPT_OK = 0,
+ TKIP_DECRYPT_NO_EXT_IV = -1,
+ TKIP_DECRYPT_INVALID_KEYIDX = -2,
+ TKIP_DECRYPT_REPLAY = -3,
+};
+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);
+
+#endif /* TKIP_H */
--- /dev/null
+/*
+ * Software WEP encryption implementation
+ * Copyright 2002, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright 2003, Instant802 Networks, 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.
+ */
+
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/random.h>
+#include <linux/compiler.h>
+#include <linux/crc32.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <linux/mm.h>
+#include <asm/scatterlist.h>
+
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "wep.h"
+
+
+int ieee80211_wep_init(struct ieee80211_local *local)
+{
+ /* start WEP IV from a random value */
+ get_random_bytes(&local->wep_iv, WEP_IV_LEN);
+
+ local->wep_tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0,
+ CRYPTO_ALG_ASYNC);
+ if (IS_ERR(local->wep_tx_tfm))
+ return -ENOMEM;
+
+ local->wep_rx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0,
+ CRYPTO_ALG_ASYNC);
+ if (IS_ERR(local->wep_rx_tfm)) {
+ crypto_free_blkcipher(local->wep_tx_tfm);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+void ieee80211_wep_free(struct ieee80211_local *local)
+{
+ crypto_free_blkcipher(local->wep_tx_tfm);
+ crypto_free_blkcipher(local->wep_rx_tfm);
+}
+
+static inline int ieee80211_wep_weak_iv(u32 iv, int keylen)
+{
+ /* Fluhrer, Mantin, and Shamir have reported weaknesses in the
+ * key scheduling algorithm of RC4. At least IVs (KeyByte + 3,
+ * 0xff, N) can be used to speedup attacks, so avoid using them. */
+ if ((iv & 0xff00) == 0xff00) {
+ u8 B = (iv >> 16) & 0xff;
+ if (B >= 3 && B < 3 + keylen)
+ return 1;
+ }
+ return 0;
+}
+
+
+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))
+ local->wep_iv += 0x0100;
+
+ if (!iv)
+ return;
+
+ *iv++ = (local->wep_iv >> 16) & 0xff;
+ *iv++ = (local->wep_iv >> 8) & 0xff;
+ *iv++ = local->wep_iv & 0xff;
+ *iv++ = key->keyidx << 6;
+}
+
+
+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;
+ int hdrlen;
+ u8 *newhdr;
+
+ fc = le16_to_cpu(hdr->frame_control);
+ fc |= IEEE80211_FCTL_PROTECTED;
+ hdr->frame_control = cpu_to_le16(fc);
+
+ if ((skb_headroom(skb) < WEP_IV_LEN ||
+ skb_tailroom(skb) < WEP_ICV_LEN)) {
+ I802_DEBUG_INC(local->tx_expand_skb_head);
+ if (unlikely(pskb_expand_head(skb, WEP_IV_LEN, WEP_ICV_LEN,
+ GFP_ATOMIC)))
+ return NULL;
+ }
+
+ hdrlen = ieee80211_get_hdrlen(fc);
+ newhdr = skb_push(skb, WEP_IV_LEN);
+ memmove(newhdr, newhdr + WEP_IV_LEN, hdrlen);
+ ieee80211_wep_get_iv(local, key, newhdr + hdrlen);
+ return newhdr + hdrlen;
+}
+
+
+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;
+ int hdrlen;
+
+ fc = le16_to_cpu(hdr->frame_control);
+ hdrlen = ieee80211_get_hdrlen(fc);
+ memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen);
+ skb_pull(skb, WEP_IV_LEN);
+}
+
+
+/* Perform WEP encryption using given key. data buffer must have tailroom
+ * for 4-byte ICV. data_len must not include this ICV. Note: this function
+ * does _not_ add IV. data = RC4(data | CRC32(data)) */
+void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
+ size_t klen, u8 *data, size_t data_len)
+{
+ struct blkcipher_desc desc = { .tfm = tfm };
+ struct scatterlist sg;
+ __le32 *icv;
+
+ icv = (__le32 *)(data + data_len);
+ *icv = cpu_to_le32(~crc32_le(~0, data, data_len));
+
+ crypto_blkcipher_setkey(tfm, rc4key, klen);
+ sg.page = virt_to_page(data);
+ sg.offset = offset_in_page(data);
+ sg.length = data_len + WEP_ICV_LEN;
+ crypto_blkcipher_encrypt(&desc, &sg, &sg, sg.length);
+}
+
+
+/* Perform WEP encryption on given skb. 4 bytes of extra space (IV) in the
+ * beginning of the buffer 4 bytes of extra space (ICV) in the end of the
+ * buffer will be added. Both IV and ICV will be transmitted, so the
+ * payload length increases with 8 bytes.
+ *
+ * WEP frame payload: IV + TX key idx, RC4(data), ICV = RC4(CRC32(data))
+ */
+int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb,
+ struct ieee80211_key *key)
+{
+ u32 klen;
+ u8 *rc4key, *iv;
+ size_t len;
+
+ if (!key || key->alg != ALG_WEP)
+ return -1;
+
+ klen = 3 + key->keylen;
+ rc4key = kmalloc(klen, GFP_ATOMIC);
+ if (!rc4key)
+ return -1;
+
+ iv = ieee80211_wep_add_iv(local, skb, key);
+ if (!iv) {
+ kfree(rc4key);
+ return -1;
+ }
+
+ len = skb->len - (iv + WEP_IV_LEN - skb->data);
+
+ /* Prepend 24-bit IV to RC4 key */
+ memcpy(rc4key, iv, 3);
+
+ /* Copy rest of the WEP key (the secret part) */
+ memcpy(rc4key + 3, key->key, key->keylen);
+
+ /* Add room for ICV */
+ skb_put(skb, WEP_ICV_LEN);
+
+ ieee80211_wep_encrypt_data(local->wep_tx_tfm, rc4key, klen,
+ iv + WEP_IV_LEN, len);
+
+ kfree(rc4key);
+
+ return 0;
+}
+
+
+/* Perform WEP decryption using given key. data buffer includes encrypted
+ * payload, including 4-byte ICV, but _not_ IV. data_len must not include ICV.
+ * Return 0 on success and -1 on ICV mismatch. */
+int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
+ size_t klen, u8 *data, size_t data_len)
+{
+ struct blkcipher_desc desc = { .tfm = tfm };
+ struct scatterlist sg;
+ __le32 crc;
+
+ crypto_blkcipher_setkey(tfm, rc4key, klen);
+ sg.page = virt_to_page(data);
+ sg.offset = offset_in_page(data);
+ sg.length = data_len + WEP_ICV_LEN;
+ crypto_blkcipher_decrypt(&desc, &sg, &sg, sg.length);
+
+ crc = cpu_to_le32(~crc32_le(~0, data, data_len));
+ if (memcmp(&crc, data + data_len, WEP_ICV_LEN) != 0)
+ /* ICV mismatch */
+ return -1;
+
+ return 0;
+}
+
+
+/* Perform WEP decryption on given skb. Buffer includes whole WEP part of
+ * the frame: IV (4 bytes), encrypted payload (including SNAP header),
+ * ICV (4 bytes). skb->len includes both IV and ICV.
+ *
+ * Returns 0 if frame was decrypted successfully and ICV was correct and -1 on
+ * failure. If frame is OK, IV and ICV will be removed, i.e., decrypted payload
+ * is moved to the beginning of the skb and skb length will be reduced.
+ */
+int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb,
+ struct ieee80211_key *key)
+{
+ u32 klen;
+ u8 *rc4key;
+ u8 keyidx;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ u16 fc;
+ int hdrlen;
+ size_t len;
+ int ret = 0;
+
+ fc = le16_to_cpu(hdr->frame_control);
+ if (!(fc & IEEE80211_FCTL_PROTECTED))
+ return -1;
+
+ hdrlen = ieee80211_get_hdrlen(fc);
+
+ if (skb->len < 8 + hdrlen)
+ return -1;
+
+ len = skb->len - hdrlen - 8;
+
+ keyidx = skb->data[hdrlen + 3] >> 6;
+
+ if (!key || keyidx != key->keyidx || key->alg != ALG_WEP)
+ return -1;
+
+ klen = 3 + key->keylen;
+
+ rc4key = kmalloc(klen, GFP_ATOMIC);
+ if (!rc4key)
+ return -1;
+
+ /* Prepend 24-bit IV to RC4 key */
+ memcpy(rc4key, skb->data + hdrlen, 3);
+
+ /* Copy rest of the WEP key (the secret part) */
+ memcpy(rc4key + 3, key->key, key->keylen);
+
+ if (ieee80211_wep_decrypt_data(local->wep_rx_tfm, rc4key, klen,
+ skb->data + hdrlen + WEP_IV_LEN,
+ len)) {
+ printk(KERN_DEBUG "WEP decrypt failed (ICV)\n");
+ ret = -1;
+ }
+
+ kfree(rc4key);
+
+ /* Trim ICV */
+ skb_trim(skb, skb->len - WEP_ICV_LEN);
+
+ /* Remove IV */
+ memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen);
+ skb_pull(skb, WEP_IV_LEN);
+
+ return ret;
+}
+
+
+int ieee80211_wep_get_keyidx(struct sk_buff *skb)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ u16 fc;
+ int hdrlen;
+
+ fc = le16_to_cpu(hdr->frame_control);
+ if (!(fc & IEEE80211_FCTL_PROTECTED))
+ return -1;
+
+ hdrlen = ieee80211_get_hdrlen(fc);
+
+ if (skb->len < 8 + hdrlen)
+ return -1;
+
+ return skb->data[hdrlen + 3] >> 6;
+}
+
+
+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 NULL;
+
+ hdrlen = ieee80211_get_hdrlen(fc);
+ ivpos = skb->data + hdrlen;
+ iv = (ivpos[0] << 16) | (ivpos[1] << 8) | ivpos[2];
+
+ if (ieee80211_wep_weak_iv(iv, key->keylen))
+ return ivpos;
+
+ return NULL;
+}
--- /dev/null
+/*
+ * Software WEP encryption implementation
+ * Copyright 2002, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright 2003, Instant802 Networks, 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 WEP_H
+#define WEP_H
+
+#include <linux/skbuff.h>
+#include <linux/types.h>
+#include "ieee80211_i.h"
+#include "ieee80211_key.h"
+
+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,
+ size_t klen, u8 *data, size_t data_len);
+int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb,
+ 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);
+
+#endif /* WEP_H */
--- /dev/null
+/*
+ * Copyright 2004, Instant802 Networks, 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.
+ */
+
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/module.h>
+#include <linux/if_arp.h>
+#include <linux/types.h>
+#include <net/ip.h>
+#include <net/pkt_sched.h>
+
+#include <net/mac80211.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
+
+struct ieee80211_sched_data
+{
+ struct tcf_proto *filter_list;
+ struct Qdisc *queues[TC_80211_MAX_QUEUES];
+ struct sk_buff_head requeued[TC_80211_MAX_QUEUES];
+};
+
+
+/* given a data frame determine the 802.1p/1d tag to use */
+static inline unsigned classify_1d(struct sk_buff *skb, struct Qdisc *qd)
+{
+ struct iphdr *ip;
+ int dscp;
+ int offset;
+
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct tcf_result res = { -1, 0 };
+
+ /* if there is a user set filter list, call out to that */
+ if (q->filter_list) {
+ tc_classify(skb, q->filter_list, &res);
+ if (res.class != -1)
+ return res.class;
+ }
+
+ /* skb->priority values from 256->263 are magic values to
+ * directly indicate a specific 802.1d priority.
+ * This is used to allow 802.1d priority to be passed directly in
+ * from VLAN tags, etc. */
+ if (skb->priority >= 256 && skb->priority <= 263)
+ return skb->priority - 256;
+
+ /* check there is a valid IP header present */
+ offset = ieee80211_get_hdrlen_from_skb(skb) + 8 /* LLC + proto */;
+ if (skb->protocol != __constant_htons(ETH_P_IP) ||
+ skb->len < offset + sizeof(*ip))
+ return 0;
+
+ ip = (struct iphdr *) (skb->data + offset);
+
+ dscp = ip->tos & 0xfc;
+ if (dscp & 0x1c)
+ return 0;
+ return dscp >> 5;
+}
+
+
+static inline int wme_downgrade_ac(struct sk_buff *skb)
+{
+ switch (skb->priority) {
+ case 6:
+ case 7:
+ skb->priority = 5; /* VO -> VI */
+ return 0;
+ case 4:
+ case 5:
+ skb->priority = 3; /* VI -> BE */
+ return 0;
+ case 0:
+ case 3:
+ skb->priority = 2; /* BE -> BK */
+ return 0;
+ default:
+ return -1;
+ }
+}
+
+
+/* positive return value indicates which queue to use
+ * negative return value indicates to drop the frame */
+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;
+ const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 };
+
+ /* see if frame is data or non data frame */
+ if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)) {
+ /* management frames go on AC_VO queue, but are sent
+ * without QoS control fields */
+ 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];
+ }
+
+ /* is this a QoS frame? */
+ qos = fc & IEEE80211_STYPE_QOS_DATA;
+
+ if (!qos) {
+ skb->priority = 0; /* required for correct WPA/11i MIC */
+ return ieee802_1d_to_ac[skb->priority];
+ }
+
+ /* 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))) {
+ if (wme_downgrade_ac(skb)) {
+ /* No AC with lower priority has acm=0, drop packet. */
+ return -1;
+ }
+ }
+
+ /* look up which queue to use for frames with this 1d tag */
+ return ieee802_1d_to_ac[skb->priority];
+}
+
+
+static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
+{
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ 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);
+ struct Qdisc *qdisc;
+ int err, queue;
+
+ if (pkt_data->requeue) {
+ skb_queue_tail(&q->requeued[pkt_data->queue], skb);
+ qd->q.qlen++;
+ return 0;
+ }
+
+ queue = classify80211(skb, qd);
+
+ /* now we know the 1d priority, fill in the QoS header if there is one
+ */
+ if (WLAN_FC_IS_QOS_DATA(fc)) {
+ u8 *p = skb->data + ieee80211_get_hdrlen(fc) - 2;
+ u8 qos_hdr = skb->priority & QOS_CONTROL_TAG1D_MASK;
+ if (local->wifi_wme_noack_test)
+ qos_hdr |= QOS_CONTROL_ACK_POLICY_NOACK <<
+ QOS_CONTROL_ACK_POLICY_SHIFT;
+ /* qos header is 2 bytes, second reserved */
+ *p = qos_hdr;
+ p++;
+ *p = 0;
+ }
+
+ if (unlikely(queue >= local->hw.queues)) {
+#if 0
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s - queue=%d (hw does not "
+ "support) -> %d\n",
+ __func__, queue, local->hw.queues - 1);
+ }
+#endif
+ queue = local->hw.queues - 1;
+ }
+
+ if (unlikely(queue < 0)) {
+ kfree_skb(skb);
+ err = NET_XMIT_DROP;
+ } else {
+ pkt_data->queue = (unsigned int) queue;
+ qdisc = q->queues[queue];
+ err = qdisc->enqueue(skb, qdisc);
+ if (err == NET_XMIT_SUCCESS) {
+ qd->q.qlen++;
+ qd->bstats.bytes += skb->len;
+ qd->bstats.packets++;
+ return NET_XMIT_SUCCESS;
+ }
+ }
+ qd->qstats.drops++;
+ return err;
+}
+
+
+/* TODO: clean up the cases where master_hard_start_xmit
+ * returns non 0 - it shouldn't ever do that. Once done we
+ * can remove this function */
+static int wme_qdiscop_requeue(struct sk_buff *skb, struct Qdisc* qd)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct ieee80211_tx_packet_data *pkt_data =
+ (struct ieee80211_tx_packet_data *) skb->cb;
+ struct Qdisc *qdisc;
+ int err;
+
+ /* we recorded which queue to use earlier! */
+ qdisc = q->queues[pkt_data->queue];
+
+ if ((err = qdisc->ops->requeue(skb, qdisc)) == 0) {
+ qd->q.qlen++;
+ return 0;
+ }
+ qd->qstats.drops++;
+ return err;
+}
+
+
+static struct sk_buff *wme_qdiscop_dequeue(struct Qdisc* qd)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct net_device *dev = qd->dev;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ struct sk_buff *skb;
+ struct Qdisc *qdisc;
+ int queue;
+
+ /* check all the h/w queues in numeric/priority order */
+ for (queue = 0; queue < hw->queues; queue++) {
+ /* see if there is room in this hardware queue */
+ if (test_bit(IEEE80211_LINK_STATE_XOFF,
+ &local->state[queue]) ||
+ test_bit(IEEE80211_LINK_STATE_PENDING,
+ &local->state[queue]))
+ continue;
+
+ /* there is space - try and get a frame */
+ skb = skb_dequeue(&q->requeued[queue]);
+ if (skb) {
+ qd->q.qlen--;
+ return skb;
+ }
+
+ qdisc = q->queues[queue];
+ skb = qdisc->dequeue(qdisc);
+ if (skb) {
+ qd->q.qlen--;
+ return skb;
+ }
+ }
+ /* returning a NULL here when all the h/w queues are full means we
+ * never need to call netif_stop_queue in the driver */
+ return NULL;
+}
+
+
+static void wme_qdiscop_reset(struct Qdisc* qd)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ int queue;
+
+ /* QUESTION: should we have some hardware flush functionality here? */
+
+ for (queue = 0; queue < hw->queues; queue++) {
+ skb_queue_purge(&q->requeued[queue]);
+ qdisc_reset(q->queues[queue]);
+ }
+ qd->q.qlen = 0;
+}
+
+
+static void wme_qdiscop_destroy(struct Qdisc* qd)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ int queue;
+
+ tcf_destroy_chain(q->filter_list);
+ q->filter_list = NULL;
+
+ for (queue=0; queue < hw->queues; queue++) {
+ skb_queue_purge(&q->requeued[queue]);
+ qdisc_destroy(q->queues[queue]);
+ q->queues[queue] = &noop_qdisc;
+ }
+}
+
+
+/* called whenever parameters are updated on existing qdisc */
+static int wme_qdiscop_tune(struct Qdisc *qd, struct rtattr *opt)
+{
+/* struct ieee80211_sched_data *q = qdisc_priv(qd);
+*/
+ /* check our options block is the right size */
+ /* copy any options to our local structure */
+/* Ignore options block for now - always use static mapping
+ struct tc_ieee80211_qopt *qopt = RTA_DATA(opt);
+
+ if (opt->rta_len < RTA_LENGTH(sizeof(*qopt)))
+ return -EINVAL;
+ memcpy(q->tag2queue, qopt->tag2queue, sizeof(qopt->tag2queue));
+*/
+ return 0;
+}
+
+
+/* called during initial creation of qdisc on device */
+static int wme_qdiscop_init(struct Qdisc *qd, struct rtattr *opt)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct net_device *dev = qd->dev;
+ struct ieee80211_local *local;
+ int queues;
+ int err = 0, i;
+
+ /* check that device is a mac80211 device */
+ if (!dev->ieee80211_ptr ||
+ dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
+ return -EINVAL;
+
+ /* check this device is an ieee80211 master type device */
+ if (dev->type != ARPHRD_IEEE80211)
+ return -EINVAL;
+
+ /* check that there is no qdisc currently attached to device
+ * this ensures that we will be the root qdisc. (I can't find a better
+ * way to test this explicitly) */
+ if (dev->qdisc_sleeping != &noop_qdisc)
+ return -EINVAL;
+
+ if (qd->flags & TCQ_F_INGRESS)
+ return -EINVAL;
+
+ local = wdev_priv(dev->ieee80211_ptr);
+ queues = local->hw.queues;
+
+ /* if options were passed in, set them */
+ if (opt) {
+ err = wme_qdiscop_tune(qd, opt);
+ }
+
+ /* create child queues */
+ for (i = 0; i < queues; i++) {
+ 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) {
+ q->queues[i] = &noop_qdisc;
+ printk(KERN_ERR "%s child qdisc %i creation failed", dev->name, i);
+ }
+ }
+
+ return err;
+}
+
+static int wme_qdiscop_dump(struct Qdisc *qd, struct sk_buff *skb)
+{
+/* struct ieee80211_sched_data *q = qdisc_priv(qd);
+ unsigned char *p = skb->tail;
+ struct tc_ieee80211_qopt opt;
+
+ memcpy(&opt.tag2queue, q->tag2queue, TC_80211_MAX_TAG + 1);
+ RTA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
+*/ return skb->len;
+/*
+rtattr_failure:
+ skb_trim(skb, p - skb->data);*/
+ return -1;
+}
+
+
+static int wme_classop_graft(struct Qdisc *qd, unsigned long arg,
+ struct Qdisc *new, struct Qdisc **old)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ unsigned long queue = arg - 1;
+
+ if (queue >= hw->queues)
+ return -EINVAL;
+
+ if (!new)
+ new = &noop_qdisc;
+
+ sch_tree_lock(qd);
+ *old = q->queues[queue];
+ q->queues[queue] = new;
+ qdisc_reset(*old);
+ sch_tree_unlock(qd);
+
+ return 0;
+}
+
+
+static struct Qdisc *
+wme_classop_leaf(struct Qdisc *qd, unsigned long arg)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ unsigned long queue = arg - 1;
+
+ if (queue >= hw->queues)
+ return NULL;
+
+ return q->queues[queue];
+}
+
+
+static unsigned long wme_classop_get(struct Qdisc *qd, u32 classid)
+{
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ unsigned long queue = TC_H_MIN(classid);
+
+ if (queue - 1 >= hw->queues)
+ return 0;
+
+ return queue;
+}
+
+
+static unsigned long wme_classop_bind(struct Qdisc *qd, unsigned long parent,
+ u32 classid)
+{
+ return wme_classop_get(qd, classid);
+}
+
+
+static void wme_classop_put(struct Qdisc *q, unsigned long cl)
+{
+}
+
+
+static int wme_classop_change(struct Qdisc *qd, u32 handle, u32 parent,
+ struct rtattr **tca, unsigned long *arg)
+{
+ unsigned long cl = *arg;
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+
+ if (cl - 1 > hw->queues)
+ return -ENOENT;
+
+ /* TODO: put code to program hardware queue parameters here,
+ * to allow programming from tc command line */
+
+ return 0;
+}
+
+
+/* we don't support deleting hardware queues
+ * when we add WMM-SA support - TSPECs may be deleted here */
+static int wme_classop_delete(struct Qdisc *qd, unsigned long cl)
+{
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+
+ if (cl - 1 > hw->queues)
+ return -ENOENT;
+ return 0;
+}
+
+
+static int wme_classop_dump_class(struct Qdisc *qd, unsigned long cl,
+ struct sk_buff *skb, struct tcmsg *tcm)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+
+ if (cl - 1 > hw->queues)
+ return -ENOENT;
+ tcm->tcm_handle = TC_H_MIN(cl);
+ tcm->tcm_parent = qd->handle;
+ tcm->tcm_info = q->queues[cl-1]->handle; /* do we need this? */
+ return 0;
+}
+
+
+static void wme_classop_walk(struct Qdisc *qd, struct qdisc_walker *arg)
+{
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ int queue;
+
+ if (arg->stop)
+ return;
+
+ for (queue = 0; queue < hw->queues; queue++) {
+ if (arg->count < arg->skip) {
+ arg->count++;
+ continue;
+ }
+ /* we should return classids for our internal queues here
+ * as well as the external ones */
+ if (arg->fn(qd, queue+1, arg) < 0) {
+ arg->stop = 1;
+ break;
+ }
+ arg->count++;
+ }
+}
+
+
+static struct tcf_proto ** wme_classop_find_tcf(struct Qdisc *qd,
+ unsigned long cl)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+
+ if (cl)
+ return NULL;
+
+ return &q->filter_list;
+}
+
+
+/* this qdisc is classful (i.e. has classes, some of which may have leaf qdiscs attached)
+ * - these are the operations on the classes */
+static struct Qdisc_class_ops class_ops =
+{
+ .graft = wme_classop_graft,
+ .leaf = wme_classop_leaf,
+
+ .get = wme_classop_get,
+ .put = wme_classop_put,
+ .change = wme_classop_change,
+ .delete = wme_classop_delete,
+ .walk = wme_classop_walk,
+
+ .tcf_chain = wme_classop_find_tcf,
+ .bind_tcf = wme_classop_bind,
+ .unbind_tcf = wme_classop_put,
+
+ .dump = wme_classop_dump_class,
+};
+
+
+/* queueing discipline operations */
+static struct Qdisc_ops wme_qdisc_ops =
+{
+ .next = NULL,
+ .cl_ops = &class_ops,
+ .id = "ieee80211",
+ .priv_size = sizeof(struct ieee80211_sched_data),
+
+ .enqueue = wme_qdiscop_enqueue,
+ .dequeue = wme_qdiscop_dequeue,
+ .requeue = wme_qdiscop_requeue,
+ .drop = NULL, /* drop not needed since we are always the root qdisc */
+
+ .init = wme_qdiscop_init,
+ .reset = wme_qdiscop_reset,
+ .destroy = wme_qdiscop_destroy,
+ .change = wme_qdiscop_tune,
+
+ .dump = wme_qdiscop_dump,
+};
+
+
+void ieee80211_install_qdisc(struct net_device *dev)
+{
+ struct Qdisc *qdisc;
+
+ qdisc = qdisc_create_dflt(dev, &wme_qdisc_ops, TC_H_ROOT);
+ if (!qdisc) {
+ printk(KERN_ERR "%s: qdisc installation failed\n", dev->name);
+ return;
+ }
+
+ /* same handle as would be allocated by qdisc_alloc_handle() */
+ qdisc->handle = 0x80010000;
+
+ qdisc_lock_tree(dev);
+ list_add_tail(&qdisc->list, &dev->qdisc_list);
+ dev->qdisc_sleeping = qdisc;
+ qdisc_unlock_tree(dev);
+}
+
+
+int ieee80211_qdisc_installed(struct net_device *dev)
+{
+ return dev->qdisc_sleeping->ops == &wme_qdisc_ops;
+}
+
+
+int ieee80211_wme_register(void)
+{
+ return register_qdisc(&wme_qdisc_ops);
+}
+
+
+void ieee80211_wme_unregister(void)
+{
+ unregister_qdisc(&wme_qdisc_ops);
+}
+#endif /* CONFIG_NET_SCHED */
--- /dev/null
+/*
+ * IEEE 802.11 driver (80211.o) - QoS datatypes
+ * Copyright 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 _WME_H
+#define _WME_H
+
+#include <linux/netdevice.h>
+#include "ieee80211_i.h"
+
+#define QOS_CONTROL_LEN 2
+
+#define QOS_CONTROL_ACK_POLICY_NORMAL 0
+#define QOS_CONTROL_ACK_POLICY_NOACK 1
+
+#define QOS_CONTROL_TID_MASK 0x0f
+#define QOS_CONTROL_ACK_POLICY_SHIFT 5
+
+#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);
+
+#ifdef CONFIG_NET_SCHED
+void ieee80211_install_qdisc(struct net_device *dev);
+int ieee80211_qdisc_installed(struct net_device *dev);
+
+int ieee80211_wme_register(void);
+void ieee80211_wme_unregister(void);
+#else
+static inline void ieee80211_install_qdisc(struct net_device *dev)
+{
+}
+static inline int ieee80211_qdisc_installed(struct net_device *dev)
+{
+ return 0;
+}
+
+static inline int ieee80211_wme_register(void)
+{
+ return 0;
+}
+static inline void ieee80211_wme_unregister(void)
+{
+}
+#endif /* CONFIG_NET_SCHED */
+
+#endif /* _WME_H */
--- /dev/null
+/*
+ * Copyright 2002-2004, Instant802 Networks, 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.
+ */
+
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#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)
+{
+ struct ieee80211_hdr *hdr;
+ size_t hdrlen;
+ u16 fc;
+ int a4_included;
+ u8 *pos;
+
+ hdr = (struct ieee80211_hdr *) skb->data;
+ fc = le16_to_cpu(hdr->frame_control);
+
+ hdrlen = 24;
+ if ((fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) ==
+ (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
+ hdrlen += ETH_ALEN;
+ *sa = hdr->addr4;
+ *da = hdr->addr3;
+ } else if (fc & IEEE80211_FCTL_FROMDS) {
+ *sa = hdr->addr3;
+ *da = hdr->addr1;
+ } else if (fc & IEEE80211_FCTL_TODS) {
+ *sa = hdr->addr2;
+ *da = hdr->addr3;
+ } else {
+ *sa = hdr->addr2;
+ *da = hdr->addr1;
+ }
+
+ if (fc & 0x80)
+ hdrlen += 2;
+
+ *data = skb->data + hdrlen;
+ *data_len = skb->len - hdrlen;
+
+ a4_included = (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
+ (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
+ if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
+ fc & IEEE80211_STYPE_QOS_DATA) {
+ pos = (u8 *) &hdr->addr4;
+ if (a4_included)
+ pos += 6;
+ *qos_tid = pos[0] & 0x0f;
+ *qos_tid |= 0x80; /* qos_included flag */
+ } else
+ *qos_tid = 0;
+
+ return skb->len < hdrlen ? -1 : 0;
+}
+
+
+ieee80211_txrx_result
+ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx)
+{
+ u8 *data, *sa, *da, *key, *mic, qos_tid;
+ size_t data_len;
+ u16 fc;
+ struct sk_buff *skb = tx->skb;
+ int authenticator;
+ int wpa_test = 0;
+
+ fc = tx->fc;
+
+ if (!tx->key || tx->key->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) &&
+ !wpa_test) {
+ /* hwaccel - with no need for preallocated room for Michael MIC
+ */
+ return TXRX_CONTINUE;
+ }
+
+ if (skb_tailroom(skb) < MICHAEL_MIC_LEN) {
+ I802_DEBUG_INC(tx->local->tx_expand_skb_head);
+ if (unlikely(pskb_expand_head(skb, TKIP_IV_LEN,
+ MICHAEL_MIC_LEN + TKIP_ICV_LEN,
+ GFP_ATOMIC))) {
+ printk(KERN_DEBUG "%s: failed to allocate more memory "
+ "for Michael MIC\n", tx->dev->name);
+ return TXRX_DROP;
+ }
+ }
+
+#if 0
+ authenticator = fc & IEEE80211_FCTL_FROMDS; /* FIX */
+#else
+ authenticator = 1;
+#endif
+ key = &tx->key->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;
+}
+
+
+ieee80211_txrx_result
+ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx)
+{
+ u8 *data, *sa, *da, *key = NULL, qos_tid;
+ size_t data_len;
+ u16 fc;
+ u8 mic[MICHAEL_MIC_LEN];
+ struct sk_buff *skb = rx->skb;
+ int authenticator = 1, wpa_test = 0;
+
+ 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))
+ return TXRX_CONTINUE;
+
+ if (!rx->key || rx->key->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;
+
+ data_len -= MICHAEL_MIC_LEN;
+
+#if 0
+ authenticator = fc & IEEE80211_FCTL_TODS; /* FIX */
+#else
+ authenticator = 1;
+#endif
+ key = &rx->key->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)
+ 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;
+ }
+
+ remove_mic:
+ /* remove Michael MIC from payload */
+ skb_trim(skb, skb->len - MICHAEL_MIC_LEN);
+
+ return TXRX_CONTINUE;
+}
+
+
+static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx,
+ struct sk_buff *skb, int test)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_key *key = tx->key;
+ int hdrlen, len, tailneed;
+ u16 fc;
+ u8 *pos;
+
+ fc = le16_to_cpu(hdr->frame_control);
+ hdrlen = ieee80211_get_hdrlen(fc);
+ len = skb->len - hdrlen;
+
+ tailneed = !tx->key->force_sw_encrypt ? 0 : TKIP_ICV_LEN;
+ if ((skb_headroom(skb) < TKIP_IV_LEN ||
+ skb_tailroom(skb) < tailneed)) {
+ I802_DEBUG_INC(tx->local->tx_expand_skb_head);
+ if (unlikely(pskb_expand_head(skb, TKIP_IV_LEN, tailneed,
+ GFP_ATOMIC)))
+ return -1;
+ }
+
+ pos = skb_push(skb, TKIP_IV_LEN);
+ 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;
+ hdr = (struct ieee80211_hdr *)skb->data;
+
+ /* hwaccel - with preallocated room for IV */
+ ieee80211_tkip_add_iv(pos, key,
+ (u8) (key->u.tkip.iv16 >> 8),
+ (u8) (((key->u.tkip.iv16 >> 8) | 0x20) &
+ 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;
+ return 0;
+ }
+
+ /* Add room for ICV */
+ skb_put(skb, TKIP_ICV_LEN);
+
+ hdr = (struct ieee80211_hdr *) skb->data;
+ ieee80211_tkip_encrypt_data(tx->local->wep_tx_tfm,
+ key, pos, len, hdr->addr2);
+ return 0;
+}
+
+
+ieee80211_txrx_result
+ieee80211_tx_h_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))
+ 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) &&
+ !wpa_test) {
+ /* hwaccel - with no need for preallocated room for IV/ICV */
+ tx->u.tx.control->key_idx = tx->key->hw_key_idx;
+ return TXRX_CONTINUE;
+ }
+
+ if (tkip_encrypt_skb(tx, skb, test) < 0)
+ return TXRX_DROP;
+
+ 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)
+ return TXRX_DROP;
+ }
+ }
+
+#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)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
+ u16 fc;
+ int hdrlen, res, hwaccel = 0, wpa_test = 0;
+ struct ieee80211_key *key = rx->key;
+ struct sk_buff *skb = rx->skb;
+
+ 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)
+ 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. */
+ return TXRX_CONTINUE;
+ }
+
+ /* let TKIP code verify IV, but skip decryption */
+ hwaccel = 1;
+ }
+
+ 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);
+ if (res != TKIP_DECRYPT_OK || wpa_test) {
+ printk(KERN_DEBUG "%s: TKIP decrypt failed for RX frame from "
+ MAC_FMT " (res=%d)\n",
+ rx->dev->name, MAC_ARG(rx->sta->addr), res);
+ return TXRX_DROP;
+ }
+
+ /* Trim ICV */
+ skb_trim(skb, skb->len - TKIP_ICV_LEN);
+
+ /* Remove IV */
+ memmove(skb->data + TKIP_IV_LEN, skb->data, hdrlen);
+ skb_pull(skb, TKIP_IV_LEN);
+
+ return TXRX_CONTINUE;
+}
+
+
+static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *b_0, u8 *aad,
+ int encrypted)
+{
+ u16 fc;
+ int a4_included, qos_included;
+ u8 qos_tid, *fc_pos, *data, *sa, *da;
+ int len_a;
+ size_t data_len;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+
+ fc_pos = (u8 *) &hdr->frame_control;
+ fc = fc_pos[0] ^ (fc_pos[1] << 8);
+ a4_included = (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
+ (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
+
+ ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len);
+ data_len -= CCMP_HDR_LEN + (encrypted ? CCMP_MIC_LEN : 0);
+ if (qos_tid & 0x80) {
+ qos_included = 1;
+ qos_tid &= 0x0f;
+ } else
+ qos_included = 0;
+ /* First block, b_0 */
+
+ b_0[0] = 0x59; /* flags: Adata: 1, M: 011, L: 001 */
+ /* Nonce: QoS Priority | A2 | PN */
+ b_0[1] = qos_tid;
+ memcpy(&b_0[2], hdr->addr2, 6);
+ memcpy(&b_0[8], pn, CCMP_PN_LEN);
+ /* l(m) */
+ b_0[14] = (data_len >> 8) & 0xff;
+ b_0[15] = data_len & 0xff;
+
+
+ /* AAD (extra authenticate-only data) / masked 802.11 header
+ * FC | A1 | A2 | A3 | SC | [A4] | [QC] */
+
+ len_a = a4_included ? 28 : 22;
+ if (qos_included)
+ len_a += 2;
+
+ aad[0] = 0; /* (len_a >> 8) & 0xff; */
+ aad[1] = len_a & 0xff;
+ /* Mask FC: zero subtype b4 b5 b6 */
+ aad[2] = fc_pos[0] & ~(BIT(4) | BIT(5) | BIT(6));
+ /* Retry, PwrMgt, MoreData; set Protected */
+ aad[3] = (fc_pos[1] & ~(BIT(3) | BIT(4) | BIT(5))) | BIT(6);
+ memcpy(&aad[4], &hdr->addr1, 18);
+
+ /* Mask Seq#, leave Frag# */
+ aad[22] = *((u8 *) &hdr->seq_ctrl) & 0x0f;
+ aad[23] = 0;
+ if (a4_included) {
+ memcpy(&aad[24], hdr->addr4, 6);
+ aad[30] = 0;
+ aad[31] = 0;
+ } else
+ memset(&aad[24], 0, 8);
+ if (qos_included) {
+ u8 *dpos = &aad[a4_included ? 30 : 24];
+
+ /* Mask QoS Control field */
+ dpos[0] = qos_tid;
+ dpos[1] = 0;
+ }
+}
+
+
+static inline void ccmp_pn2hdr(u8 *hdr, u8 *pn, int key_id)
+{
+ hdr[0] = pn[5];
+ hdr[1] = pn[4];
+ hdr[2] = 0;
+ hdr[3] = 0x20 | (key_id << 6);
+ hdr[4] = pn[3];
+ hdr[5] = pn[2];
+ hdr[6] = pn[1];
+ hdr[7] = pn[0];
+}
+
+
+static inline int ccmp_hdr2pn(u8 *pn, u8 *hdr)
+{
+ pn[0] = hdr[7];
+ pn[1] = hdr[6];
+ pn[2] = hdr[5];
+ pn[3] = hdr[4];
+ pn[4] = hdr[1];
+ pn[5] = hdr[0];
+ return (hdr[3] >> 6) & 0x03;
+}
+
+
+static int ccmp_encrypt_skb(struct ieee80211_txrx_data *tx,
+ struct sk_buff *skb, int test)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_key *key = tx->key;
+ int hdrlen, len, tailneed;
+ u16 fc;
+ u8 *pos, *pn, *b_0, *aad, *scratch;
+ int i;
+
+ scratch = key->u.ccmp.tx_crypto_buf;
+ b_0 = scratch + 3 * AES_BLOCK_LEN;
+ aad = scratch + 4 * AES_BLOCK_LEN;
+
+ fc = le16_to_cpu(hdr->frame_control);
+ hdrlen = ieee80211_get_hdrlen(fc);
+ len = skb->len - hdrlen;
+
+ tailneed = !key->force_sw_encrypt ? 0 : CCMP_MIC_LEN;
+
+ if ((skb_headroom(skb) < CCMP_HDR_LEN ||
+ skb_tailroom(skb) < tailneed)) {
+ I802_DEBUG_INC(tx->local->tx_expand_skb_head);
+ if (unlikely(pskb_expand_head(skb, CCMP_HDR_LEN, tailneed,
+ GFP_ATOMIC)))
+ return -1;
+ }
+
+ pos = skb_push(skb, CCMP_HDR_LEN);
+ memmove(pos, pos + CCMP_HDR_LEN, hdrlen);
+ hdr = (struct ieee80211_hdr *) pos;
+ pos += hdrlen;
+
+ /* 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);
+
+ if (!key->force_sw_encrypt) {
+ /* hwaccel - with preallocated room for CCMP header */
+ tx->u.tx.control->key_idx = key->hw_key_idx;
+ return 0;
+ }
+
+ pos += CCMP_HDR_LEN;
+ ccmp_special_blocks(skb, pn, b_0, aad, 0);
+ ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, scratch, b_0, aad, pos, len,
+ pos, skb_put(skb, CCMP_MIC_LEN));
+
+ return 0;
+}
+
+
+ieee80211_txrx_result
+ieee80211_tx_h_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))
+ 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)) {
+ /* hwaccel - with no need for preallocated room for CCMP "
+ * header or MIC fields */
+ tx->u.tx.control->key_idx = tx->key->hw_key_idx;
+ return TXRX_CONTINUE;
+ }
+
+ if (ccmp_encrypt_skb(tx, skb, test) < 0)
+ return TXRX_DROP;
+
+ 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)
+ return TXRX_DROP;
+ }
+ }
+
+ return TXRX_CONTINUE;
+}
+
+
+ieee80211_txrx_result
+ieee80211_rx_h_ccmp_decrypt(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
+ u16 fc;
+ int hdrlen;
+ struct ieee80211_key *key = rx->key;
+ struct sk_buff *skb = rx->skb;
+ u8 pn[CCMP_PN_LEN];
+ int data_len;
+
+ 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)
+ return TXRX_CONTINUE;
+
+ data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN;
+ if (!rx->sta || data_len < 0)
+ 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))
+ return TXRX_CONTINUE;
+
+ (void) ccmp_hdr2pn(pn, skb->data + hdrlen);
+
+ if (memcmp(pn, key->u.ccmp.rx_pn[rx->u.rx.queue], CCMP_PN_LEN) <= 0) {
+#ifdef CONFIG_MAC80211_DEBUG
+ u8 *ppn = key->u.ccmp.rx_pn[rx->u.rx.queue];
+ printk(KERN_DEBUG "%s: CCMP replay detected for RX frame from "
+ MAC_FMT " (RX PN %02x%02x%02x%02x%02x%02x <= prev. PN "
+ "%02x%02x%02x%02x%02x%02x)\n", rx->dev->name,
+ MAC_ARG(rx->sta->addr),
+ pn[0], pn[1], pn[2], pn[3], pn[4], pn[5],
+ ppn[0], ppn[1], ppn[2], ppn[3], ppn[4], ppn[5]);
+#endif /* CONFIG_MAC80211_DEBUG */
+ key->u.ccmp.replays++;
+ 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 {
+ u8 *scratch, *b_0, *aad;
+
+ scratch = key->u.ccmp.rx_crypto_buf;
+ b_0 = scratch + 3 * AES_BLOCK_LEN;
+ aad = scratch + 4 * AES_BLOCK_LEN;
+
+ ccmp_special_blocks(skb, pn, b_0, aad, 1);
+
+ if (ieee80211_aes_ccm_decrypt(
+ key->u.ccmp.tfm, scratch, b_0, aad,
+ skb->data + hdrlen + CCMP_HDR_LEN, data_len,
+ skb->data + skb->len - CCMP_MIC_LEN,
+ skb->data + hdrlen + CCMP_HDR_LEN)) {
+ printk(KERN_DEBUG "%s: CCMP decrypt failed for RX "
+ "frame from " MAC_FMT "\n", rx->dev->name,
+ MAC_ARG(rx->sta->addr));
+ return TXRX_DROP;
+ }
+ }
+
+ memcpy(key->u.ccmp.rx_pn[rx->u.rx.queue], pn, CCMP_PN_LEN);
+
+ /* Remove CCMP header and MIC */
+ skb_trim(skb, skb->len - CCMP_MIC_LEN);
+ memmove(skb->data + CCMP_HDR_LEN, skb->data, hdrlen);
+ skb_pull(skb, CCMP_HDR_LEN);
+
+ return TXRX_CONTINUE;
+}
+
--- /dev/null
+/*
+ * Copyright 2002-2004, Instant802 Networks, 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 WPA_H
+#define WPA_H
+
+#include <linux/skbuff.h>
+#include <linux/types.h>
+#include "ieee80211_i.h"
+
+ieee80211_txrx_result
+ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx);
+ieee80211_txrx_result
+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_txrx_result
+ieee80211_rx_h_tkip_decrypt(struct ieee80211_txrx_data *rx);
+
+ieee80211_txrx_result
+ieee80211_tx_h_ccmp_encrypt(struct ieee80211_txrx_data *tx);
+ieee80211_txrx_result
+ieee80211_rx_h_ccmp_decrypt(struct ieee80211_txrx_data *rx);
+
+#endif /* WPA_H */
--- /dev/null
+config CFG80211
+ tristate "Improved wireless configuration API"
+
+config NL80211
+ bool "nl80211 new netlink interface support"
+ depends CFG80211
+ default y
+ ---help---
+ This option turns on the new netlink interface
+ (nl80211) support in cfg80211.
+
+ If =n, drivers using mac80211 will be configured via
+ wireless extension support provided by that subsystem.
+
+ If unsure, say Y.
+
+config WIRELESS_EXT
+ bool "Wireless extensions"
+ default n
+ ---help---
+ This option enables the legacy wireless extensions
+ (wireless network interface configuration via ioctls.)
+
+ Wireless extensions will be replaced by cfg80211 and
+ will be required only by legacy drivers that implement
+ wireless extension handlers. This option does not
+ affect the wireless-extension backward compatibility
+ code in cfg80211.
+
+ Say N (if you can) unless you know you need wireless
+ extensions for external modules.
--- /dev/null
+obj-$(CONFIG_WIRELESS_EXT) += wext.o
+obj-$(CONFIG_CFG80211) += cfg80211.o
+
+cfg80211-y += core.o sysfs.o
+cfg80211-$(CONFIG_NL80211) += nl80211.o
--- /dev/null
+/*
+ * This is the linux wireless configuration interface.
+ *
+ * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ */
+
+#include <linux/if.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/nl80211.h>
+#include <linux/debugfs.h>
+#include <linux/notifier.h>
+#include <linux/device.h>
+#include <net/genetlink.h>
+#include <net/cfg80211.h>
+#include <net/wireless.h>
+#include "nl80211.h"
+#include "core.h"
+#include "sysfs.h"
+
+/* name for sysfs, %d is appended */
+#define PHY_NAME "phy"
+
+MODULE_AUTHOR("Johannes Berg");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("wireless configuration support");
+
+/* RCU might be appropriate here since we usually
+ * only read the list, and that can happen quite
+ * often because we need to do it for each command */
+LIST_HEAD(cfg80211_drv_list);
+DEFINE_MUTEX(cfg80211_drv_mutex);
+static int wiphy_counter;
+
+/* for debugfs */
+static struct dentry *ieee80211_debugfs_dir;
+
+/* requires cfg80211_drv_mutex to be held! */
+static struct cfg80211_registered_device *cfg80211_drv_by_wiphy(int wiphy)
+{
+ struct cfg80211_registered_device *result = NULL, *drv;
+
+ list_for_each_entry(drv, &cfg80211_drv_list, list) {
+ if (drv->idx == wiphy) {
+ result = drv;
+ break;
+ }
+ }
+
+ return result;
+}
+
+/* requires cfg80211_drv_mutex to be held! */
+static struct cfg80211_registered_device *
+__cfg80211_drv_from_info(struct genl_info *info)
+{
+ int ifindex;
+ struct cfg80211_registered_device *bywiphy = NULL, *byifidx = NULL;
+ struct net_device *dev;
+ int err = -EINVAL;
+
+ if (info->attrs[NL80211_ATTR_WIPHY]) {
+ bywiphy = cfg80211_drv_by_wiphy(
+ nla_get_u32(info->attrs[NL80211_ATTR_WIPHY]));
+ err = -ENODEV;
+ }
+
+ if (info->attrs[NL80211_ATTR_IFINDEX]) {
+ ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
+ dev = dev_get_by_index(ifindex);
+ if (dev) {
+ if (dev->ieee80211_ptr)
+ byifidx =
+ wiphy_to_dev(dev->ieee80211_ptr->wiphy);
+ dev_put(dev);
+ }
+ err = -ENODEV;
+ }
+
+ if (bywiphy && byifidx) {
+ if (bywiphy != byifidx)
+ return ERR_PTR(-EINVAL);
+ else
+ return bywiphy; /* == byifidx */
+ }
+ if (bywiphy)
+ return bywiphy;
+
+ if (byifidx)
+ return byifidx;
+
+ return ERR_PTR(err);
+}
+
+struct cfg80211_registered_device *
+cfg80211_get_dev_from_info(struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+
+ mutex_lock(&cfg80211_drv_mutex);
+ drv = __cfg80211_drv_from_info(info);
+
+ /* if it is not an error we grab the lock on
+ * it to assure it won't be going away while
+ * we operate on it */
+ if (!IS_ERR(drv))
+ mutex_lock(&drv->mtx);
+
+ mutex_unlock(&cfg80211_drv_mutex);
+
+ return drv;
+}
+
+struct cfg80211_registered_device *
+cfg80211_get_dev_from_ifindex(int ifindex)
+{
+ struct cfg80211_registered_device *drv = ERR_PTR(-ENODEV);
+ struct net_device *dev;
+
+ mutex_lock(&cfg80211_drv_mutex);
+ dev = dev_get_by_index(ifindex);
+ if (!dev)
+ goto out;
+ if (dev->ieee80211_ptr) {
+ drv = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
+ mutex_lock(&drv->mtx);
+ } else
+ drv = ERR_PTR(-ENODEV);
+ dev_put(dev);
+ out:
+ mutex_unlock(&cfg80211_drv_mutex);
+ return drv;
+}
+
+void cfg80211_put_dev(struct cfg80211_registered_device *drv)
+{
+ BUG_ON(IS_ERR(drv));
+ mutex_unlock(&drv->mtx);
+}
+
+int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
+ char *newname)
+{
+ int idx, taken = -1, result, digits;
+
+ /* prohibit calling the thing phy%d when %d is not its number */
+ sscanf(newname, PHY_NAME "%d%n", &idx, &taken);
+ if (taken == strlen(newname) && idx != rdev->idx) {
+ /* count number of places needed to print idx */
+ digits = 1;
+ while (idx /= 10)
+ digits++;
+ /*
+ * deny the name if it is phy<idx> where <idx> is printed
+ * without leading zeroes. taken == strlen(newname) here
+ */
+ if (taken == strlen(PHY_NAME) + digits)
+ return -EINVAL;
+ }
+
+ /* this will check for collisions */
+ result = device_rename(&rdev->wiphy.dev, newname);
+ if (!result)
+ return result;
+
+ /* TODO: do debugfs rename! */
+
+ nl80211_notify_dev_rename(rdev);
+
+ return 0;
+}
+
+/* exported functions */
+
+struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv)
+{
+ struct cfg80211_registered_device *drv;
+ int alloc_size;
+
+ alloc_size = sizeof(*drv) + sizeof_priv;
+
+ drv = kzalloc(alloc_size, GFP_KERNEL);
+ if (!drv)
+ return NULL;
+
+ drv->ops = ops;
+
+ mutex_lock(&cfg80211_drv_mutex);
+
+ drv->idx = wiphy_counter;
+
+ /* now increase counter for the next device unless
+ * it has wrapped previously */
+ if (wiphy_counter >= 0)
+ wiphy_counter++;
+
+ mutex_unlock(&cfg80211_drv_mutex);
+
+ if (unlikely(drv->idx < 0)) {
+ /* ugh, wrapped! */
+ kfree(drv);
+ return NULL;
+ }
+
+ /* give it a proper name */
+ snprintf(drv->wiphy.dev.bus_id, BUS_ID_SIZE,
+ PHY_NAME "%d", drv->idx);
+
+ mutex_init(&drv->mtx);
+ mutex_init(&drv->devlist_mtx);
+ INIT_LIST_HEAD(&drv->netdev_list);
+
+ device_initialize(&drv->wiphy.dev);
+ drv->wiphy.dev.class = &ieee80211_class;
+ drv->wiphy.dev.platform_data = drv;
+
+ return &drv->wiphy;
+}
+EXPORT_SYMBOL(wiphy_new);
+
+int wiphy_register(struct wiphy *wiphy)
+{
+ struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
+ int res;
+
+ mutex_lock(&cfg80211_drv_mutex);
+
+ res = device_add(&drv->wiphy.dev);
+ if (res)
+ goto out_unlock;
+
+ list_add(&drv->list, &cfg80211_drv_list);
+
+ /* add to debugfs */
+ drv->wiphy.debugfsdir =
+ debugfs_create_dir(wiphy_name(&drv->wiphy),
+ ieee80211_debugfs_dir);
+
+ res = 0;
+out_unlock:
+ mutex_unlock(&cfg80211_drv_mutex);
+ return res;
+}
+EXPORT_SYMBOL(wiphy_register);
+
+void wiphy_unregister(struct wiphy *wiphy)
+{
+ struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
+
+ /* protect the device list */
+ mutex_lock(&cfg80211_drv_mutex);
+
+ BUG_ON(!list_empty(&drv->netdev_list));
+
+ /*
+ * Try to grab drv->mtx. If a command is still in progress,
+ * hopefully the driver will refuse it since it's tearing
+ * down the device already. We wait for this command to complete
+ * before unlinking the item from the list.
+ * Note: as codified by the BUG_ON above we cannot get here if
+ * a virtual interface is still associated. Hence, we can only
+ * get to lock contention here if userspace issues a command
+ * that identified the hardware by wiphy index.
+ */
+ mutex_lock(&drv->mtx);
+ /* unlock again before freeing */
+ mutex_unlock(&drv->mtx);
+
+ list_del(&drv->list);
+ device_del(&drv->wiphy.dev);
+ debugfs_remove(drv->wiphy.debugfsdir);
+
+ mutex_unlock(&cfg80211_drv_mutex);
+}
+EXPORT_SYMBOL(wiphy_unregister);
+
+void cfg80211_dev_free(struct cfg80211_registered_device *drv)
+{
+ mutex_destroy(&drv->mtx);
+ mutex_destroy(&drv->devlist_mtx);
+ kfree(drv);
+}
+
+void wiphy_free(struct wiphy *wiphy)
+{
+ put_device(&wiphy->dev);
+}
+EXPORT_SYMBOL(wiphy_free);
+
+static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
+ unsigned long state,
+ void *ndev)
+{
+ struct net_device *dev = ndev;
+ struct cfg80211_registered_device *rdev;
+
+ if (!dev->ieee80211_ptr)
+ return 0;
+
+ rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
+
+ switch (state) {
+ case NETDEV_REGISTER:
+ mutex_lock(&rdev->devlist_mtx);
+ list_add(&dev->ieee80211_ptr->list, &rdev->netdev_list);
+ if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj,
+ "phy80211")) {
+ printk(KERN_ERR "wireless: failed to add phy80211 "
+ "symlink to netdev!\n");
+ }
+ dev->ieee80211_ptr->netdev = dev;
+ mutex_unlock(&rdev->devlist_mtx);
+ break;
+ case NETDEV_UNREGISTER:
+ mutex_lock(&rdev->devlist_mtx);
+ if (!list_empty(&dev->ieee80211_ptr->list)) {
+ sysfs_remove_link(&dev->dev.kobj, "phy80211");
+ list_del_init(&dev->ieee80211_ptr->list);
+ }
+ mutex_unlock(&rdev->devlist_mtx);
+ break;
+ }
+
+ return 0;
+}
+
+static struct notifier_block cfg80211_netdev_notifier = {
+ .notifier_call = cfg80211_netdev_notifier_call,
+};
+
+static int cfg80211_init(void)
+{
+ int err = wiphy_sysfs_init();
+ if (err)
+ goto out_fail_sysfs;
+
+ err = register_netdevice_notifier(&cfg80211_netdev_notifier);
+ if (err)
+ goto out_fail_notifier;
+
+ err = nl80211_init();
+ if (err)
+ goto out_fail_nl80211;
+
+ ieee80211_debugfs_dir = debugfs_create_dir("ieee80211", NULL);
+
+ return 0;
+
+out_fail_nl80211:
+ unregister_netdevice_notifier(&cfg80211_netdev_notifier);
+out_fail_notifier:
+ wiphy_sysfs_exit();
+out_fail_sysfs:
+ return err;
+}
+module_init(cfg80211_init);
+
+static void cfg80211_exit(void)
+{
+ debugfs_remove(ieee80211_debugfs_dir);
+ nl80211_exit();
+ unregister_netdevice_notifier(&cfg80211_netdev_notifier);
+ wiphy_sysfs_exit();
+}
+module_exit(cfg80211_exit);
--- /dev/null
+/*
+ * Wireless configuration interface internals.
+ *
+ * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ */
+#ifndef __NET_WIRELESS_CORE_H
+#define __NET_WIRELESS_CORE_H
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <net/genetlink.h>
+#include <net/wireless.h>
+#include <net/cfg80211.h>
+
+struct cfg80211_registered_device {
+ struct cfg80211_ops *ops;
+ struct list_head list;
+ /* we hold this mutex during any call so that
+ * we cannot do multiple calls at once, and also
+ * to avoid the deregister call to proceed while
+ * any call is in progress */
+ struct mutex mtx;
+
+ /* wiphy index, internal only */
+ int idx;
+
+ /* associate netdev list */
+ struct mutex devlist_mtx;
+ struct list_head netdev_list;
+
+ /* must be last because of the way we do wiphy_priv(),
+ * and it should at least be aligned to NETDEV_ALIGN */
+ struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
+};
+
+static inline
+struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
+{
+ BUG_ON(!wiphy);
+ return container_of(wiphy, struct cfg80211_registered_device, wiphy);
+}
+
+extern struct mutex cfg80211_drv_mutex;
+extern struct list_head cfg80211_drv_list;
+
+/*
+ * This function returns a pointer to the driver
+ * that the genl_info item that is passed refers to.
+ * If successful, it returns non-NULL and also locks
+ * the driver's mutex!
+ *
+ * This means that you need to call cfg80211_put_dev()
+ * before being allowed to acquire &cfg80211_drv_mutex!
+ *
+ * This is necessary because we need to lock the global
+ * mutex to get an item off the list safely, and then
+ * we lock the drv mutex so it doesn't go away under us.
+ *
+ * We don't want to keep cfg80211_drv_mutex locked
+ * for all the time in order to allow requests on
+ * other interfaces to go through at the same time.
+ *
+ * The result of this can be a PTR_ERR and hence must
+ * be checked with IS_ERR() for errors.
+ */
+extern struct cfg80211_registered_device *
+cfg80211_get_dev_from_info(struct genl_info *info);
+
+/* identical to cfg80211_get_dev_from_info but only operate on ifindex */
+extern struct cfg80211_registered_device *
+cfg80211_get_dev_from_ifindex(int ifindex);
+
+extern void cfg80211_put_dev(struct cfg80211_registered_device *drv);
+
+/* free object */
+extern void cfg80211_dev_free(struct cfg80211_registered_device *drv);
+
+extern int cfg80211_dev_rename(struct cfg80211_registered_device *drv,
+ char *newname);
+
+#endif /* __NET_WIRELESS_CORE_H */
--- /dev/null
+/*
+ * This is the new netlink-based wireless configuration interface.
+ *
+ * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
+ */
+
+#include <linux/if.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/if_ether.h>
+#include <linux/ieee80211.h>
+#include <linux/nl80211.h>
+#include <linux/rtnetlink.h>
+#include <net/genetlink.h>
+#include <net/cfg80211.h>
+#include "core.h"
+#include "nl80211.h"
+
+/* the netlink family */
+static struct genl_family nl80211_fam = {
+ .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
+ .name = "nl80211", /* have users key off the name instead */
+ .hdrsize = 0, /* no private header */
+ .version = 1, /* no particular meaning now */
+ .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,
+ struct net_device **dev)
+{
+ int ifindex;
+
+ if (!info->attrs[NL80211_ATTR_IFINDEX])
+ return -EINVAL;
+
+ ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
+ *dev = dev_get_by_index(ifindex);
+ if (!dev)
+ return -ENODEV;
+
+ *drv = cfg80211_get_dev_from_ifindex(ifindex);
+ if (IS_ERR(*drv)) {
+ dev_put(*dev);
+ return PTR_ERR(*drv);
+ }
+
+ return 0;
+}
+
+/* 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 },
+};
+
+/* netlink command implementations */
+
+#define CHECK_CMD(ptr, cmd) \
+ if (drv->ops->ptr) \
+ NLA_PUT_FLAG(msg, NL80211_CMD_##cmd);
+
+static int nl80211_get_cmdlist(struct sk_buff *skb, struct genl_info *info)
+{
+ 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;
+ }
+
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, drv->idx);
+
+ 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_nest_end(msg, start);
+
+ genlmsg_end(msg, hdr);
+
+ err = genlmsg_unicast(msg, info->snd_pid);
+ goto put_drv;
+
+ nla_put_failure:
+ err = -ENOBUFS;
+ nlmsg_free(msg);
+ put_drv:
+ cfg80211_put_dev(drv);
+ return err;
+}
+#undef CHECK_CMD
+
+static int nl80211_get_wiphys(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);
+
+ start = nla_nest_start(msg, NL80211_ATTR_WIPHY_LIST);
+ if (!start)
+ goto nla_outer_nest_failure;
+
+ 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);
+
+ nla_nest_end(msg, start);
+
+ genlmsg_end(msg, hdr);
+
+ return genlmsg_unicast(msg, info->snd_pid);
+
+ nla_put_failure:
+ mutex_unlock(&cfg80211_drv_mutex);
+ nla_outer_nest_failure:
+ nlmsg_free(msg);
+ return -ENOBUFS;
+}
+
+static int addifidx(struct net_device *dev, struct sk_buff *skb, int *idx)
+{
+ int err = -ENOBUFS;
+ struct nlattr *start;
+
+ dev_hold(dev);
+
+ start = nla_nest_start(skb, *idx++);
+ if (!start)
+ goto nla_put_failure;
+
+ NLA_PUT_U32(skb, NL80211_ATTR_IFINDEX, dev->ifindex);
+ NLA_PUT_STRING(skb, NL80211_ATTR_IFNAME, dev->name);
+
+ nla_nest_end(skb, start);
+ err = 0;
+
+ nla_put_failure:
+ dev_put(dev);
+ return err;
+}
+
+static int nl80211_get_intfs(struct sk_buff *skb, struct genl_info *info)
+{
+ 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);
+
+ 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_failure:
+ err = -ENOBUFS;
+ msg_free:
+ nlmsg_free(msg);
+ put_drv:
+ cfg80211_put_dev(drv);
+ return err;
+}
+
+static int nl80211_add_virt_intf(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+ int err;
+ unsigned int type = NL80211_IFTYPE_UNSPECIFIED;
+
+ if (!info->attrs[NL80211_ATTR_IFNAME])
+ return -EINVAL;
+
+ if (info->attrs[NL80211_ATTR_IFTYPE]) {
+ type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
+ if (type > NL80211_IFTYPE_MAX)
+ return -EINVAL;
+ }
+
+ 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;
+ }
+
+ 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;
+}
+
+static int nl80211_del_virt_intf(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+ int ifindex, err;
+ struct net_device *dev;
+
+ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
+ if (err)
+ return err;
+ ifindex = dev->ifindex;
+ dev_put(dev);
+
+ if (!drv->ops->del_virtual_intf) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ rtnl_lock();
+ err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
+ rtnl_unlock();
+
+ out:
+ cfg80211_put_dev(drv);
+ return err;
+}
+
+static int nl80211_change_virt_intf(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+ int err, ifindex;
+ unsigned int type;
+ struct net_device *dev;
+
+ if (info->attrs[NL80211_ATTR_IFTYPE]) {
+ type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
+ if (type > NL80211_IFTYPE_MAX)
+ return -EINVAL;
+ } else
+ return -EINVAL;
+
+ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
+ if (err)
+ return err;
+ ifindex = dev->ifindex;
+ dev_put(dev);
+
+ if (!drv->ops->change_virtual_intf) {
+ err = -EOPNOTSUPP;
+ goto unlock;
+ }
+
+ rtnl_lock();
+ err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, type);
+ rtnl_unlock();
+
+ unlock:
+ cfg80211_put_dev(drv);
+ return err;
+}
+
+static int nl80211_get_association(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;
+ }
+
+ if (!info->attrs[NL80211_ATTR_SSID])
+ 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;
+ }
+
+ 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;
+
+ if (!drv->ops->get_auth_list) {
+ 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;
+ }
+
+ cb.skb = msg;
+ cb.idx = 1;
+ rtnl_lock();
+ err = drv->ops->get_auth_list(&drv->wiphy, dev, &cb, add_bssid);
+ 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:
+ cfg80211_put_dev(drv);
+ dev_put(dev);
+ return err;
+}
+
+static int nl80211_initiate_scan(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+ int 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);
+ 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) {
+ 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);
+ 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,
+ .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,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_GET_ASSOCIATION,
+ .doit = nl80211_get_association,
+ .policy = nl80211_policy,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = NL80211_CMD_ASSOCIATE,
+ .doit = nl80211_associate,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_DISASSOCIATE,
+ .doit = nl80211_disassoc_deauth,
+ .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,
+ .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);
+
+/* 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))
+ 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;
+
+ nla_put_failure:
+ nlmsg_free(msg);
+}
+
+/* initialisation/exit functions */
+
+int nl80211_init(void)
+{
+ int err, i;
+
+ err = genl_register_family(&nl80211_fam);
+ if (err)
+ return err;
+
+ for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
+ err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
+ if (err)
+ goto err_out;
+ }
+ return 0;
+ err_out:
+ genl_unregister_family(&nl80211_fam);
+ return err;
+}
+
+void nl80211_exit(void)
+{
+ genl_unregister_family(&nl80211_fam);
+}
--- /dev/null
+#ifndef __NET_WIRELESS_NL80211_H
+#define __NET_WIRELESS_NL80211_H
+
+#include "core.h"
+
+#ifdef CONFIG_NL80211
+extern int nl80211_init(void);
+extern void nl80211_exit(void);
+extern void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev);
+#else
+static inline int nl80211_init(void)
+{
+ return 0;
+}
+static inline void nl80211_exit(void)
+{
+}
+static inline void nl80211_notify_dev_rename(
+ struct cfg80211_registered_device *rdev)
+{
+}
+#endif /* CONFIG_NL80211 */
+
+#endif /* __NET_WIRELESS_NL80211_H */
--- /dev/null
+/*
+ * This file provides /sys/class/ieee80211/<wiphy name>/
+ * and some default attributes.
+ *
+ * Copyright 2005-2006 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This file is GPLv2 as found in COPYING.
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/nl80211.h>
+#include <linux/rtnetlink.h>
+#include <net/cfg80211.h>
+#include "sysfs.h"
+#include "core.h"
+
+static inline struct cfg80211_registered_device *dev_to_rdev(
+ struct device *dev)
+{
+ return container_of(dev, struct cfg80211_registered_device, wiphy.dev);
+}
+
+static ssize_t _show_index(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%d\n", dev_to_rdev(dev)->idx);
+}
+
+static ssize_t _show_permaddr(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned char *addr = dev_to_rdev(dev)->wiphy.perm_addr;
+
+ return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
+ 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),
+ {}
+};
+
+static void wiphy_dev_release(struct device *dev)
+{
+ struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
+
+ cfg80211_dev_free(rdev);
+}
+
+static int wiphy_uevent(struct device *dev, char **envp,
+ int num_envp, char *buf, int size)
+{
+ /* TODO, we probably need stuff here */
+ return 0;
+}
+
+struct class ieee80211_class = {
+ .name = "ieee80211",
+ .owner = THIS_MODULE,
+ .dev_release = wiphy_dev_release,
+ .dev_attrs = ieee80211_dev_attrs,
+#ifdef CONFIG_HOTPLUG
+ .dev_uevent = wiphy_uevent,
+#endif
+};
+
+int wiphy_sysfs_init(void)
+{
+ return class_register(&ieee80211_class);
+}
+
+void wiphy_sysfs_exit(void)
+{
+ class_unregister(&ieee80211_class);
+}
--- /dev/null
+#ifndef __WIRELESS_SYSFS_H
+#define __WIRELESS_SYSFS_H
+
+extern int wiphy_sysfs_init(void);
+extern void wiphy_sysfs_exit(void);
+
+extern struct class ieee80211_class;
+
+#endif /* __WIRELESS_SYSFS_H */
--- /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 / wigyori.git / commitdiff