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authorJavier Cardona <javier@cozybit.com>2009-10-15 18:10:51 -0700
committerJohn W. Linville <linville@tuxdriver.com>2009-10-27 16:48:22 -0400
commit43b7b314f606b64f8645e4ec1a59df8a97a79b5a (patch)
treeff424a90e3b06b6cfd99d48e8a8b94a4aec8fa5d
parenta9b3a9f7214b3acc56330c2257aeaa5fa85bf520 (diff)
mac80211: Learn about mesh portals from multicast traffic
Mesh portals proxy traffic for nodes external to the mesh. When a proxied frame is received by a mesh interface, it should update its mesh portal table. This was only happening for unicast frames. With this change we also learn about mesh portals from proxied multicast frames. Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--net/mac80211/rx.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 7170bf4565a..5c385e3c1d1 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1504,19 +1504,28 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
/* illegal frame */
return RX_DROP_MONITOR;
- if (!is_multicast_ether_addr(hdr->addr1) &&
- (mesh_hdr->flags & MESH_FLAGS_AE_A5_A6)) {
+ if (mesh_hdr->flags & MESH_FLAGS_AE) {
struct mesh_path *mppath;
+ char *proxied_addr;
+ char *mpp_addr;
+
+ if (is_multicast_ether_addr(hdr->addr1)) {
+ mpp_addr = hdr->addr3;
+ proxied_addr = mesh_hdr->eaddr1;
+ } else {
+ mpp_addr = hdr->addr4;
+ proxied_addr = mesh_hdr->eaddr2;
+ }
rcu_read_lock();
- mppath = mpp_path_lookup(mesh_hdr->eaddr2, sdata);
+ mppath = mpp_path_lookup(proxied_addr, sdata);
if (!mppath) {
- mpp_path_add(mesh_hdr->eaddr2, hdr->addr4, sdata);
+ mpp_path_add(proxied_addr, mpp_addr, 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);
+ if (compare_ether_addr(mppath->mpp, mpp_addr) != 0)
+ memcpy(mppath->mpp, mpp_addr, ETH_ALEN);
spin_unlock_bh(&mppath->state_lock);
}
rcu_read_unlock();