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, 61 insertions, 1 deletions

diff --git a/net/mac80211/ieee80211_iface.c b/net/mac80211/ieee80211_iface.c
index 9523aeb71032..c2f92b78bfc9 100644
--- a/net/mac80211/ieee80211_iface.c
+++ b/net/mac80211/ieee80211_iface.c
@@ -15,6 +15,9 @@
 #include "ieee80211_i.h"
 #include "sta_info.h"
 #include "debugfs_netdev.h"
+#ifdef CONFIG_MAC80211_MESH
+#include "mesh.h"
+#endif
 
 void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata)
 {
@@ -39,7 +42,8 @@ static void ieee80211_if_sdata_deinit(struct ieee80211_sub_if_data *sdata)
 
 /* 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 **new_dev, int type,
+                     struct vif_params *params)
 {
         struct net_device *ndev;
         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
@@ -78,6 +82,15 @@ int ieee80211_if_add(struct net_device *dev, const char *name,
         ieee80211_debugfs_add_netdev(sdata);
         ieee80211_if_set_type(ndev, type);
 
+#ifdef CONFIG_MAC80211_MESH
+        if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT &&
+            params && params->mesh_id_len) {
+                sdata->u.sta.mesh_id_len = params->mesh_id_len;
+                memcpy(sdata->u.sta.mesh_id, params->mesh_id,
+                       params->mesh_id_len);
+        }
+#endif
+
         /* we're under RTNL so all this is fine */
         if (unlikely(local->reg_state == IEEE80211_DEV_UNREGISTERED)) {
                 __ieee80211_if_del(local, sdata);
@@ -134,6 +147,7 @@ void ieee80211_if_set_type(struct net_device *dev, int type)
                 sdata->bss = &sdata->u.ap;
                 INIT_LIST_HEAD(&sdata->u.ap.vlans);
                 break;
+        case IEEE80211_IF_TYPE_MESH_POINT:
         case IEEE80211_IF_TYPE_STA:
         case IEEE80211_IF_TYPE_IBSS: {
                 struct ieee80211_sub_if_data *msdata;
@@ -155,6 +169,48 @@ void ieee80211_if_set_type(struct net_device *dev, int type)
 
                 msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev);
                 sdata->bss = &msdata->u.ap;
+
+#ifdef CONFIG_MAC80211_MESH
+                if (type == IEEE80211_IF_TYPE_MESH_POINT) {
+                        ifsta->mshcfg.dot11MeshRetryTimeout = MESH_RET_T;
+                        ifsta->mshcfg.dot11MeshConfirmTimeout = MESH_CONF_T;
+                        ifsta->mshcfg.dot11MeshHoldingTimeout = MESH_HOLD_T;
+                        ifsta->mshcfg.dot11MeshMaxRetries = MESH_MAX_RETR;
+                        ifsta->mshcfg.dot11MeshTTL = MESH_TTL;
+                        ifsta->mshcfg.auto_open_plinks = true;
+                        ifsta->mshcfg.dot11MeshMaxPeerLinks =
+                                MESH_MAX_ESTAB_PLINKS;
+                        ifsta->mshcfg.dot11MeshHWMPactivePathTimeout =
+                                MESH_PATH_TIMEOUT;
+                        ifsta->mshcfg.dot11MeshHWMPpreqMinInterval =
+                                MESH_PREQ_MIN_INT;
+                        ifsta->mshcfg.dot11MeshHWMPnetDiameterTraversalTime =
+                                MESH_DIAM_TRAVERSAL_TIME;
+                        ifsta->mshcfg.dot11MeshHWMPmaxPREQretries =
+                                MESH_MAX_PREQ_RETRIES;
+                        ifsta->mshcfg.path_refresh_time =
+                                MESH_PATH_REFRESH_TIME;
+                        ifsta->mshcfg.min_discovery_timeout =
+                                MESH_MIN_DISCOVERY_TIMEOUT;
+                        ifsta->accepting_plinks = true;
+                        ifsta->preq_id = 0;
+                        ifsta->dsn = 0;
+                        atomic_set(&ifsta->mpaths, 0);
+                        mesh_rmc_init(dev);
+                        ifsta->last_preq = jiffies;
+                        /* Allocate all mesh structures when creating the first
+                         * mesh interface.
+                         */
+                        if (!mesh_allocated)
+                                ieee80211s_init();
+                        mesh_ids_set_default(ifsta);
+                        setup_timer(&ifsta->mesh_path_timer,
+                                    ieee80211_mesh_path_timer,
+                                    (unsigned long) sdata);
+                        INIT_LIST_HEAD(&ifsta->preq_queue.list);
+                        spin_lock_init(&ifsta->mesh_preq_queue_lock);
+                }
+#endif
                 break;
         }
         case IEEE80211_IF_TYPE_MNTR:
@@ -236,6 +292,10 @@ void ieee80211_if_reinit(struct net_device *dev)
                 }
                 break;
         case IEEE80211_IF_TYPE_MESH_POINT:
+#ifdef CONFIG_MAC80211_MESH
+                mesh_rmc_free(dev);
+#endif
+                /* fall through */
         case IEEE80211_IF_TYPE_STA:
         case IEEE80211_IF_TYPE_IBSS:
                 kfree(sdata->u.sta.extra_ie);