From: Felix Fietkau <nbd@nbd.name>
Date: Tue, 12 Sep 2023 10:57:52 +0000 (+0200)
Subject: hostapd: fix applying gratuitous ARP settings with bridge-vlan
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=36a9f8449c8c892dada8d313af4fcfc38a1ba08b;p=openwrt%2Fstaging%2Fblogic.git

hostapd: fix applying gratuitous ARP settings with bridge-vlan

The arp_accept setting needs to be applied to the snoop_iface

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

diff --git a/package/network/services/hostapd/patches/740-snoop_iface.patch b/package/network/services/hostapd/patches/740-snoop_iface.patch
index 6b6cc0fad799..004b8a0d392a 100644
--- a/package/network/services/hostapd/patches/740-snoop_iface.patch
+++ b/package/network/services/hostapd/patches/740-snoop_iface.patch
@@ -10,7 +10,7 @@
  	int bridge_hairpin; /* hairpin_mode on bridge members */
 --- a/src/ap/x_snoop.c
 +++ b/src/ap/x_snoop.c
-@@ -33,14 +33,16 @@ int x_snoop_init(struct hostapd_data *ha
+@@ -33,28 +33,31 @@ int x_snoop_init(struct hostapd_data *ha
  
  	hapd->x_snoop_initialized = true;
  
@@ -29,13 +29,20 @@
  		wpa_printf(MSG_DEBUG,
  			   "x_snoop: Failed to enable proxyarp on the bridge port");
  		return -1;
-@@ -54,7 +56,8 @@ int x_snoop_init(struct hostapd_data *ha
+ 	}
+ 
+ 	if (hostapd_drv_br_set_net_param(hapd, DRV_BR_NET_PARAM_GARP_ACCEPT,
+-					 1)) {
++					 conf->snoop_iface[0] ? conf->snoop_iface : NULL, 1)) {
+ 		wpa_printf(MSG_DEBUG,
+ 			   "x_snoop: Failed to enable accepting gratuitous ARP on the bridge");
+ 		return -1;
  	}
  
  #ifdef CONFIG_IPV6
 -	if (hostapd_drv_br_set_net_param(hapd, DRV_BR_MULTICAST_SNOOPING, 1)) {
 +	if (!conf->snoop_iface[0] &&
-+	    hostapd_drv_br_set_net_param(hapd, DRV_BR_MULTICAST_SNOOPING, 1)) {
++	    hostapd_drv_br_set_net_param(hapd, DRV_BR_MULTICAST_SNOOPING, NULL, 1)) {
  		wpa_printf(MSG_DEBUG,
  			   "x_snoop: Failed to enable multicast snooping on the bridge");
  		return -1;
@@ -44,15 +51,29 @@
  	struct hostapd_bss_config *conf = hapd->conf;
  	struct l2_packet_data *l2;
 +	const char *ifname = conf->bridge;
- 
--	l2 = l2_packet_init(conf->bridge, NULL, ETH_P_ALL, handler, hapd, 1);
++
 +	if (conf->snoop_iface[0])
 +		ifname = conf->snoop_iface;
-+
+ 
+-	l2 = l2_packet_init(conf->bridge, NULL, ETH_P_ALL, handler, hapd, 1);
 +	l2 = l2_packet_init(ifname, NULL, ETH_P_ALL, handler, hapd, 1);
  	if (l2 == NULL) {
  		wpa_printf(MSG_DEBUG,
  			   "x_snoop: Failed to initialize L2 packet processing %s",
+@@ -127,9 +134,12 @@ void x_snoop_mcast_to_ucast_convert_send
+ 
+ void x_snoop_deinit(struct hostapd_data *hapd)
+ {
++	struct hostapd_bss_config *conf = hapd->conf;
++
+ 	if (!hapd->x_snoop_initialized)
+ 		return;
+-	hostapd_drv_br_set_net_param(hapd, DRV_BR_NET_PARAM_GARP_ACCEPT, 0);
++	hostapd_drv_br_set_net_param(hapd, DRV_BR_NET_PARAM_GARP_ACCEPT,
++				     conf->snoop_iface[0] ? conf->snoop_iface : NULL, 0);
+ 	hostapd_drv_br_port_set_attr(hapd, DRV_BR_PORT_ATTR_PROXYARP, 0);
+ 	hostapd_drv_br_port_set_attr(hapd, DRV_BR_PORT_ATTR_HAIRPIN_MODE, 0);
+ 	hapd->x_snoop_initialized = false;
 --- a/hostapd/config_file.c
 +++ b/hostapd/config_file.c
 @@ -2322,6 +2322,8 @@ static int hostapd_config_fill(struct ho
@@ -64,3 +85,55 @@
  	} else if (os_strcmp(buf, "vlan_bridge") == 0) {
  		os_strlcpy(bss->vlan_bridge, pos, sizeof(bss->vlan_bridge));
  	} else if (os_strcmp(buf, "wds_bridge") == 0) {
+--- a/src/ap/ap_drv_ops.h
++++ b/src/ap/ap_drv_ops.h
+@@ -366,12 +366,12 @@ static inline int hostapd_drv_br_port_se
+ 
+ static inline int hostapd_drv_br_set_net_param(struct hostapd_data *hapd,
+ 					       enum drv_br_net_param param,
+-					       unsigned int val)
++					       const char *ifname, unsigned int val)
+ {
+ 	if (hapd->driver == NULL || hapd->drv_priv == NULL ||
+ 	    hapd->driver->br_set_net_param == NULL)
+ 		return -1;
+-	return hapd->driver->br_set_net_param(hapd->drv_priv, param, val);
++	return hapd->driver->br_set_net_param(hapd->drv_priv, param, ifname, val);
+ }
+ 
+ static inline int hostapd_drv_vendor_cmd(struct hostapd_data *hapd,
+--- a/src/drivers/driver.h
++++ b/src/drivers/driver.h
+@@ -4206,7 +4206,7 @@ struct wpa_driver_ops {
+ 	 * Returns: 0 on success, negative (<0) on failure
+ 	 */
+ 	int (*br_set_net_param)(void *priv, enum drv_br_net_param param,
+-				unsigned int val);
++				const char *ifname, unsigned int val);
+ 
+ 	/**
+ 	 * get_wowlan - Get wake-on-wireless status
+--- a/src/drivers/driver_nl80211.c
++++ b/src/drivers/driver_nl80211.c
+@@ -12127,7 +12127,7 @@ static const char * drv_br_net_param_str
+ 
+ 
+ static int wpa_driver_br_set_net_param(void *priv, enum drv_br_net_param param,
+-				       unsigned int val)
++				       const char *ifname, unsigned int val)
+ {
+ 	struct i802_bss *bss = priv;
+ 	char path[128];
+@@ -12153,8 +12153,11 @@ static int wpa_driver_br_set_net_param(v
+ 			return -EINVAL;
+ 	}
+ 
++	if (!ifname)
++		ifname = bss->brname;
++
+ 	os_snprintf(path, sizeof(path), "/proc/sys/net/ipv%d/conf/%s/%s",
+-		    ip_version, bss->brname, param_txt);
++		    ip_version, ifname, param_txt);
+ 
+ set_val:
+ 	if (linux_write_system_file(path, val))