mac80211: various wds related fixes

SVN-Revision: 19076

diff --git a/package/mac80211/patches/550-wds_assoc_dummyframe.patch b/package/mac80211/patches/550-wds_assoc_dummyframe.patch
new file mode 100644 (file)
index 0000000..9efb3ac
--- /dev/null
+++ b/package/mac80211/patches/550-wds_assoc_dummyframe.patch
@@ -0,0 +1,76 @@
+--- a/net/mac80211/mlme.c
++++ b/net/mac80211/mlme.c
+@@ -312,6 +312,38 @@ void ieee80211_send_nullfunc(struct ieee
+       ieee80211_tx_skb(sdata, skb);
+ }
+ 
++static void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
++                                        struct ieee80211_sub_if_data *sdata)
++{
++      struct sk_buff *skb;
++      struct ieee80211_hdr *nullfunc;
++      __le16 fc;
++
++      if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
++              return;
++
++      skb = dev_alloc_skb(local->hw.extra_tx_headroom + 30);
++      if (!skb) {
++              printk(KERN_DEBUG "%s: failed to allocate buffer for 4addr "
++                     "nullfunc frame\n", sdata->name);
++              return;
++      }
++      skb_reserve(skb, local->hw.extra_tx_headroom);
++
++      nullfunc = (struct ieee80211_hdr *) skb_put(skb, 30);
++      memset(nullfunc, 0, 30);
++      fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
++                       IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
++      nullfunc->frame_control = fc;
++      memcpy(nullfunc->addr1, sdata->u.mgd.bssid, ETH_ALEN);
++      memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
++      memcpy(nullfunc->addr3, sdata->u.mgd.bssid, ETH_ALEN);
++      memcpy(nullfunc->addr4, sdata->vif.addr, ETH_ALEN);
++
++      IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
++      ieee80211_tx_skb(sdata, skb);
++}
++
+ /* spectrum management related things */
+ static void ieee80211_chswitch_work(struct work_struct *work)
+ {
+@@ -1120,6 +1152,13 @@ static bool ieee80211_assoc_success(stru
+       ieee80211_set_associated(sdata, cbss, changed);
+ 
+       /*
++       * If we're using 4-addr mode, let the AP know that we're
++       * doing so, so that it can create the STA VLAN on its side
++       */
++      if (ifmgd->use_4addr)
++              ieee80211_send_4addr_nullfunc(local, sdata);
++
++      /*
+        * Start timer to probe the connection to the AP now.
+        * Also start the timer that will detect beacon loss.
+        */
+--- a/net/mac80211/rx.c
++++ b/net/mac80211/rx.c
+@@ -1111,6 +1111,18 @@ ieee80211_rx_h_sta_process(struct ieee80
+       if (ieee80211_is_nullfunc(hdr->frame_control) ||
+           ieee80211_is_qos_nullfunc(hdr->frame_control)) {
+               I802_DEBUG_INC(rx->local->rx_handlers_drop_nullfunc);
++
++              /*
++               * If we receive a 4-addr nullfunc frame from a STA
++               * that was not moved to a 4-addr STA vlan yet, drop
++               * the frame to the monitor interface, to make sure
++               * that hostapd sees it
++               */
++              if (ieee80211_has_a4(hdr->frame_control) &&
++                  (rx->sdata->vif.type == NL80211_IFTYPE_AP ||
++                   (rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
++                    !rx->sdata->u.vlan.sta)))
++                      return RX_DROP_MONITOR;
+               /*
+                * Update counter and free packet here to avoid
+                * counting this as a dropped packed.

diff --git a/package/mac80211/patches/560-vlan_sta_lookup.patch b/package/mac80211/patches/560-vlan_sta_lookup.patch
new file mode 100644 (file)
index 0000000..ad15ca9
--- /dev/null
+++ b/package/mac80211/patches/560-vlan_sta_lookup.patch
@@ -0,0 +1,98 @@
+--- a/net/mac80211/sta_info.c
++++ b/net/mac80211/sta_info.c
+@@ -119,6 +119,27 @@ struct sta_info *sta_info_get(struct iee
+       return sta;
+ }
+ 
++/*
++ * Get sta info either from the specified interface
++ * or from one of its vlans
++ */
++struct sta_info *sta_info_get_bss(struct ieee80211_sub_if_data *sdata,
++                                const u8 *addr)
++{
++      struct ieee80211_local *local = sdata->local;
++      struct sta_info *sta;
++
++      sta = rcu_dereference(local->sta_hash[STA_HASH(addr)]);
++      while (sta) {
++              if ((sta->sdata == sdata ||
++                   sta->sdata->bss == sdata->bss) &&
++                  memcmp(sta->sta.addr, addr, ETH_ALEN) == 0)
++                      break;
++              sta = rcu_dereference(sta->hnext);
++      }
++      return sta;
++}
++
+ struct sta_info *sta_info_get_by_idx(struct ieee80211_sub_if_data *sdata,
+                                    int idx)
+ {
+--- a/net/mac80211/sta_info.h
++++ b/net/mac80211/sta_info.h
+@@ -408,6 +408,9 @@ static inline u32 get_sta_flags(struct s
+ struct sta_info *sta_info_get(struct ieee80211_sub_if_data *sdata,
+                             const u8 *addr);
+ 
++struct sta_info *sta_info_get_bss(struct ieee80211_sub_if_data *sdata,
++                                const u8 *addr);
++
+ static inline
+ void for_each_sta_info_type_check(struct ieee80211_local *local,
+                                 const u8 *addr,
+--- a/net/mac80211/cfg.c
++++ b/net/mac80211/cfg.c
+@@ -148,7 +148,7 @@ static int ieee80211_add_key(struct wiph
+       rcu_read_lock();
+ 
+       if (mac_addr) {
+-              sta = sta_info_get(sdata, mac_addr);
++              sta = sta_info_get_bss(sdata, mac_addr);
+               if (!sta) {
+                       ieee80211_key_free(key);
+                       err = -ENOENT;
+@@ -179,7 +179,7 @@ static int ieee80211_del_key(struct wiph
+       if (mac_addr) {
+               ret = -ENOENT;
+ 
+-              sta = sta_info_get(sdata, mac_addr);
++              sta = sta_info_get_bss(sdata, mac_addr);
+               if (!sta)
+                       goto out_unlock;
+ 
+@@ -226,7 +226,7 @@ static int ieee80211_get_key(struct wiph
+       rcu_read_lock();
+ 
+       if (mac_addr) {
+-              sta = sta_info_get(sdata, mac_addr);
++              sta = sta_info_get_bss(sdata, mac_addr);
+               if (!sta)
+                       goto out;
+ 
+@@ -419,7 +419,7 @@ static int ieee80211_get_station(struct 
+ 
+       rcu_read_lock();
+ 
+-      sta = sta_info_get(sdata, mac);
++      sta = sta_info_get_bss(sdata, mac);
+       if (sta) {
+               ret = 0;
+               sta_set_sinfo(sta, sinfo);
+@@ -775,7 +775,7 @@ static int ieee80211_del_station(struct 
+       if (mac) {
+               rcu_read_lock();
+ 
+-              sta = sta_info_get(sdata, mac);
++              sta = sta_info_get_bss(sdata, mac);
+               if (!sta) {
+                       rcu_read_unlock();
+                       return -ENOENT;
+@@ -803,7 +803,7 @@ static int ieee80211_change_station(stru
+ 
+       rcu_read_lock();
+ 
+-      sta = sta_info_get(sdata, mac);
++      sta = sta_info_get_bss(sdata, mac);
+       if (!sta) {
+               rcu_read_unlock();
+               return -ENOENT;

diff --git a/package/mac80211/patches/570-4addr_vlan_check.patch b/package/mac80211/patches/570-4addr_vlan_check.patch
new file mode 100644 (file)
index 0000000..7079957
--- /dev/null
+++ b/package/mac80211/patches/570-4addr_vlan_check.patch
@@ -0,0 +1,15 @@
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -1051,8 +1051,11 @@ ieee80211_tx_prepare(struct ieee80211_su
+ 
+       hdr = (struct ieee80211_hdr *) skb->data;
+ 
+-      if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
++      if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
+               tx->sta = rcu_dereference(sdata->u.vlan.sta);
++              if (!tx->sta && sdata->dev->ieee80211_ptr->use_4addr)
++                      return TX_DROP;
++      }
+       if (!tx->sta)
+               tx->sta = sta_info_get(sdata, hdr->addr1);
+