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authorYanBo <dreamfly281@gmail.com>2008-09-22 13:30:32 +0800
committerJohn W. Linville <linville@tuxdriver.com>2008-09-24 16:18:02 -0400
commit79617deeebb9cf089e2bc2aad19743b1209043f6 (patch)
tree52c93b45d07ce3cd5c78be743446068602e90234 /net/mac80211/rx.c
parent31e9ab2b180bccb3977b9a82ff357ac4c6ee3c83 (diff)
downloadop-kernel-dev-79617deeebb9cf089e2bc2aad19743b1209043f6.zip
op-kernel-dev-79617deeebb9cf089e2bc2aad19743b1209043f6.tar.gz
mac80211: mesh portal functionality support
Currently the mesh code doesn't support bridging mesh point interfaces with wired ethernet or AP to construct an MPP or MAP. This patch adds code to support the "6 address frame format packet" functionality to mesh point interfaces. Now the mesh network can be used as backhaul for end to end communication. Signed-off-by: Li YanBo <dreamfly281@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/rx.c')
-rw-r--r--net/mac80211/rx.c32
1 files changed, 28 insertions, 4 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 3ab9670..2efa4dd 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1107,10 +1107,6 @@ ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
hdrlen = ieee80211_hdrlen(hdr->frame_control);
- if (ieee80211_vif_is_mesh(&sdata->vif))
- hdrlen += ieee80211_get_mesh_hdrlen(
- (struct ieee80211s_hdr *) (skb->data + hdrlen));
-
/* convert IEEE 802.11 header + possible LLC headers into Ethernet
* header
* IEEE 802.11 address fields:
@@ -1134,6 +1130,15 @@ ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
if (unlikely(sdata->vif.type != NL80211_IFTYPE_WDS &&
sdata->vif.type != NL80211_IFTYPE_MESH_POINT))
return -1;
+ if (ieee80211_vif_is_mesh(&sdata->vif)) {
+ struct ieee80211s_hdr *meshdr = (struct ieee80211s_hdr *)
+ (skb->data + hdrlen);
+ hdrlen += ieee80211_get_mesh_hdrlen(meshdr);
+ if (meshdr->flags & MESH_FLAGS_AE_A5_A6) {
+ memcpy(dst, meshdr->eaddr1, ETH_ALEN);
+ memcpy(src, meshdr->eaddr2, ETH_ALEN);
+ }
+ }
break;
case __constant_cpu_to_le16(IEEE80211_FCTL_FROMDS):
if (sdata->vif.type != NL80211_IFTYPE_STATION ||
@@ -1393,6 +1398,25 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
/* illegal frame */
return RX_DROP_MONITOR;
+ if (mesh_hdr->flags & MESH_FLAGS_AE_A5_A6){
+ struct ieee80211_sub_if_data *sdata;
+ struct mesh_path *mppath;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
+ rcu_read_lock();
+ mppath = mpp_path_lookup(mesh_hdr->eaddr2, sdata);
+ if (!mppath) {
+ mpp_path_add(mesh_hdr->eaddr2, hdr->addr4, sdata);
+ } else {
+ spin_lock_bh(&mppath->state_lock);
+ mppath->exp_time = jiffies;
+ if (compare_ether_addr(mppath->mpp, hdr->addr4) != 0)
+ memcpy(mppath->mpp, hdr->addr4, ETH_ALEN);
+ spin_unlock_bh(&mppath->state_lock);
+ }
+ rcu_read_unlock();
+ }
+
if (compare_ether_addr(rx->dev->dev_addr, hdr->addr3) == 0)
return RX_CONTINUE;
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