mac80211: complete the mesh (interface handling) code

This completes the mesh interface handling code and a few other
bits about the mac80211 module.

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, 27 insertions, 1 deletions

diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c
index 190917a74c3e..7106d651f4f9 100644
--- a/net/mac80211/ieee80211.c
+++ b/net/mac80211/ieee80211.c
@@ -26,6 +26,9 @@
 
 #include "ieee80211_i.h"
 #include "ieee80211_rate.h"
+#ifdef CONFIG_MAC80211_MESH
+#include "mesh.h"
+#endif
 #include "wep.h"
 #include "wme.h"
 #include "aes_ccm.h"
@@ -138,9 +141,15 @@ static void ieee80211_master_set_multicast_list(struct net_device *dev)
 
 static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
 {
+        int meshhdrlen;
+        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+        meshhdrlen = (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) ? 5 : 0;
+
         /* FIX: what would be proper limits for MTU?
          * This interface uses 802.3 frames. */
-        if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6) {
+        if (new_mtu < 256 ||
+                new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6 - meshhdrlen) {
                 printk(KERN_WARNING "%s: invalid MTU %d\n",
                        dev->name, new_mtu);
                 return -EINVAL;
@@ -441,6 +450,9 @@ static int ieee80211_stop(struct net_device *dev)
                 ieee80211_configure_filter(local);
                 netif_tx_unlock_bh(local->mdev);
                 break;
+        case IEEE80211_IF_TYPE_MESH_POINT:
+                sta_info_flush(local, dev);
+                /* fall through */
         case IEEE80211_IF_TYPE_STA:
         case IEEE80211_IF_TYPE_IBSS:
                 sdata->u.sta.state = IEEE80211_DISABLED;
@@ -926,6 +938,11 @@ static int __ieee80211_if_config(struct net_device *dev,
                 conf.bssid = sdata->u.sta.bssid;
                 conf.ssid = sdata->u.sta.ssid;
                 conf.ssid_len = sdata->u.sta.ssid_len;
+#ifdef CONFIG_MAC80211_MESH
+        } else if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) {
+                conf.beacon = beacon;
+                ieee80211_start_mesh(dev);
+#endif
         } else if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
                 conf.ssid = sdata->u.ap.ssid;
                 conf.ssid_len = sdata->u.ap.ssid_len;
@@ -938,6 +955,11 @@ static int __ieee80211_if_config(struct net_device *dev,
 
 int ieee80211_if_config(struct net_device *dev)
 {
+        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+        if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT &&
+            (local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE))
+                return ieee80211_if_config_beacon(dev);
         return __ieee80211_if_config(dev, NULL, NULL);
 }
 
@@ -1802,6 +1824,10 @@ static void __exit ieee80211_exit(void)
         rc80211_simple_exit();
         rc80211_pid_exit();
 
+#ifdef CONFIG_MAC80211_MESH
+        if (mesh_allocated)
+                ieee80211s_stop();
+#endif
         ieee80211_wme_unregister();
         ieee80211_debugfs_netdev_exit();
 }