mac80211: mesh data structures and first mesh changes

Includes integration in struct sta_info of mesh peer link elements, previously
on their own mesh peer link table.

Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 39 insertions, 3 deletions

diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index e384e6632d97..1f3c9eb98500 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -21,6 +21,9 @@
 #include "ieee80211_rate.h"
 #include "sta_info.h"
 #include "debugfs_sta.h"
+#ifdef CONFIG_MAC80211_MESH
+#include "mesh.h"
+#endif
 
 /* Caller must hold local->sta_lock */
 static void sta_info_hash_add(struct ieee80211_local *local,
@@ -84,6 +87,27 @@ struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr)
 }
 EXPORT_SYMBOL(sta_info_get);
 
+struct sta_info *sta_info_get_by_idx(struct ieee80211_local *local, int idx,
+                                     struct net_device *dev)
+{
+        struct sta_info *sta;
+        int i = 0;
+
+        read_lock_bh(&local->sta_lock);
+        list_for_each_entry(sta, &local->sta_list, list) {
+                if (i < idx) {
+                        ++i;
+                        continue;
+                } else if (!dev || dev == sta->dev) {
+                        __sta_info_get(sta);
+                        read_unlock_bh(&local->sta_lock);
+                        return sta;
+                }
+        }
+        read_unlock_bh(&local->sta_lock);
+
+        return NULL;
+}
 
 static void sta_info_release(struct kref *kref)
 {
@@ -284,12 +308,19 @@ void sta_info_remove(struct sta_info *sta)
                 __sta_info_clear_tim_bit(sdata->bss, sta);
         }
         local->num_sta--;
+
+#ifdef CONFIG_MAC80211_MESH
+        if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
+                mesh_accept_plinks_update(sdata->dev);
+#endif
 }
 
 void sta_info_free(struct sta_info *sta)
 {
         struct sk_buff *skb;
         struct ieee80211_local *local = sta->local;
+        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+
         DECLARE_MAC_BUF(mac);
 
         might_sleep();
@@ -298,6 +329,14 @@ void sta_info_free(struct sta_info *sta)
         sta_info_remove(sta);
         write_unlock_bh(&local->sta_lock);
 
+#ifdef CONFIG_MAC80211_MESH
+        if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) {
+                spin_lock_bh(&sta->plink_lock);
+                mesh_plink_deactivate(sta);
+                spin_unlock_bh(&sta->plink_lock);
+        }
+#endif
+
         while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
                 local->total_ps_buffered--;
                 dev_kfree_skb(skb);
@@ -315,9 +354,6 @@ void sta_info_free(struct sta_info *sta)
         WARN_ON(sta->key);
 
         if (local->ops->sta_notify) {
-                struct ieee80211_sub_if_data *sdata;
-
-                sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
 
                 if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
                         sdata = sdata->u.vlan.ap;