hostapd: Fix WDS/WEP usage

WEP in WDS is currently broken in hostapd. Add a patch
to fix the issue.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>

SVN-Revision: 37733

package/network/services/hostapd/patches/710-wds-wep-fix.patch

@@ -0,0 +1,156 @@
+--- a/src/ap/ap_drv_ops.c
++++ b/src/ap/ap_drv_ops.c
+@@ -296,19 +296,19 @@ int hostapd_vlan_if_remove(struct hostap
+ }
+ 
+ 
+-int hostapd_set_wds_sta(struct hostapd_data *hapd, const u8 *addr, int aid,
+-			int val)
++int hostapd_set_wds_sta(struct hostapd_data *hapd, char *ifname_wds,
++			const u8 *addr, int aid, int val)
+ {
+ 	const char *bridge = NULL;
+ 
+ 	if (hapd->driver == NULL || hapd->driver->set_wds_sta == NULL)
+-		return 0;
++		return -1;
+ 	if (hapd->conf->wds_bridge[0])
+ 		bridge = hapd->conf->wds_bridge;
+ 	else if (hapd->conf->bridge[0])
+ 		bridge = hapd->conf->bridge;
+ 	return hapd->driver->set_wds_sta(hapd->drv_priv, addr, aid, val,
+-					 bridge);
++					 bridge, ifname_wds);
+ }
+ 
+ 
+--- a/src/ap/ap_drv_ops.h
++++ b/src/ap/ap_drv_ops.h
+@@ -31,8 +31,8 @@ int hostapd_set_drv_ieee8021x(struct hos
+ 			      int enabled);
+ int hostapd_vlan_if_add(struct hostapd_data *hapd, const char *ifname);
+ int hostapd_vlan_if_remove(struct hostapd_data *hapd, const char *ifname);
+-int hostapd_set_wds_sta(struct hostapd_data *hapd, const u8 *addr, int aid,
+-			int val);
++int hostapd_set_wds_sta(struct hostapd_data *hapd, char *ifname_wds,
++			const u8 *addr, int aid, int val);
+ int hostapd_sta_add(struct hostapd_data *hapd,
+ 		    const u8 *addr, u16 aid, u16 capability,
+ 		    const u8 *supp_rates, size_t supp_rates_len,
+--- a/src/ap/ieee802_11.c
++++ b/src/ap/ieee802_11.c
+@@ -1846,6 +1846,29 @@ static void handle_auth_cb(struct hostap
+ 	}
+ }
+ 
++static void hostapd_set_wds_encryption(struct hostapd_data *hapd,
++				       struct sta_info *sta,
++				       char *ifname_wds)
++{
++	int i, idx;
++	struct hostapd_ssid *ssid = sta->ssid;
++
++	if (hapd->conf->ieee802_1x || hapd->conf->wpa)
++		return;
++
++	for (i = 0; i < 4; i++) {
++		if (ssid->wep.key[i] &&
++		    hostapd_drv_set_key(ifname_wds, hapd, WPA_ALG_WEP, NULL, i,
++					i == ssid->wep.idx, NULL, 0,
++					ssid->wep.key[i],
++					ssid->wep.len[i])) {
++			wpa_printf(MSG_WARNING,
++				   "Could not set WEP keys for WDS interface; %s",
++				   ifname_wds);
++			break;
++		}
++	}
++}
+ 
+ static void handle_assoc_cb(struct hostapd_data *hapd,
+ 			    const struct ieee80211_mgmt *mgmt,
+@@ -1949,8 +1972,15 @@ static void handle_assoc_cb(struct hosta
+ 		goto fail;
+ 	}
+ 
+-	if (sta->flags & WLAN_STA_WDS)
+-		hostapd_set_wds_sta(hapd, sta->addr, sta->aid, 1);
++	if (sta->flags & WLAN_STA_WDS) {
++		int ret;
++		char ifname_wds[IFNAMSIZ + 1];
++
++		ret = hostapd_set_wds_sta(hapd, ifname_wds, sta->addr,
++					  sta->aid, 1);
++		if (!ret)
++			hostapd_set_wds_encryption(hapd, sta, ifname_wds);
++	}
+ 
+ 	if (sta->eapol_sm == NULL) {
+ 		/*
+@@ -2191,11 +2221,18 @@ void ieee802_11_rx_from_unknown(struct h
+ 			return;
+ 
+ 		if (wds && !(sta->flags & WLAN_STA_WDS)) {
++			int ret;
++			char ifname_wds[IFNAMSIZ + 1];
++
+ 			wpa_printf(MSG_DEBUG, "Enable 4-address WDS mode for "
+ 				   "STA " MACSTR " (aid %u)",
+ 				   MAC2STR(sta->addr), sta->aid);
+ 			sta->flags |= WLAN_STA_WDS;
+-			hostapd_set_wds_sta(hapd, sta->addr, sta->aid, 1);
++			ret = hostapd_set_wds_sta(hapd, ifname_wds,
++						  sta->addr, sta->aid, 1);
++			if (!ret)
++				hostapd_set_wds_encryption(hapd, sta,
++							   ifname_wds);
+ 		}
+ 		return;
+ 	}
+--- a/src/ap/sta_info.c
++++ b/src/ap/sta_info.c
+@@ -129,7 +129,7 @@ void ap_free_sta(struct hostapd_data *ha
+ 	ap_sta_set_authorized(hapd, sta, 0);
+ 
+ 	if (sta->flags & WLAN_STA_WDS)
+-		hostapd_set_wds_sta(hapd, sta->addr, sta->aid, 0);
++		hostapd_set_wds_sta(hapd, NULL, sta->addr, sta->aid, 0);
+ 
+ 	if (!(sta->flags & WLAN_STA_PREAUTH))
+ 		hostapd_drv_sta_remove(hapd, sta->addr);
+--- a/src/drivers/driver.h
++++ b/src/drivers/driver.h
+@@ -2057,10 +2057,12 @@ struct wpa_driver_ops {
+ 	 * @val: 1 = bind to 4-address WDS; 0 = unbind
+ 	 * @bridge_ifname: Bridge interface to use for the WDS station or %NULL
+ 	 *	to indicate that bridge is not to be used
++	 * @ifname_wds: Buffer to return the interface name for the new WDS
++	 *	station.
+ 	 * Returns: 0 on success, -1 on failure
+ 	 */
+ 	int (*set_wds_sta)(void *priv, const u8 *addr, int aid, int val,
+-	                   const char *bridge_ifname);
++	                   const char *bridge_ifname, char *ifname_wds);
+ 
+ 	/**
+ 	 * send_action - Transmit an Action frame
+--- a/src/drivers/driver_nl80211.c
++++ b/src/drivers/driver_nl80211.c
+@@ -8744,13 +8744,16 @@ static int have_ifidx(struct wpa_driver_
+ 
+ 
+ static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
+-                            const char *bridge_ifname)
++                            const char *bridge_ifname, char *ifname_wds)
+ {
+ 	struct i802_bss *bss = priv;
+ 	struct wpa_driver_nl80211_data *drv = bss->drv;
+ 	char name[IFNAMSIZ + 1];
+ 
+ 	os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
++	if (ifname_wds)
++		os_strlcpy(ifname_wds, name, IFNAMSIZ + 1);
++
+ 	wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
+ 		   " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
+ 	if (val) {