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authorChun-Yeow Yeoh <yeohchunyeow@gmail.com>2013-02-19 10:04:50 +0800
committerJohannes Berg <johannes.berg@intel.com>2013-02-26 00:09:22 +0100
commit163df6cf292a1024277f500038fc0ed493635673 (patch)
tree0ec07ee68f2e69e1c1601c70460e92db2a1d5665 /net
parent162589f7b162b916ac377753c086e3ba76a9f33d (diff)
downloadlinux-163df6cf292a1024277f500038fc0ed493635673.tar.bz2
mac80211: fix the problem of forwarding from DS to DS in Mesh
Unicast frame with unknown forwarding information always trigger the path discovery assuming destination is always located inside the MBSS. This patch allows the forwarding to look for mesh gate if path discovery inside the MBSS has failed. Reported-by: Cedric Voncken <cedric.voncken@acksys.fr> Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/tx.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 5800c7a0d075..bb05a0f86034 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1844,9 +1844,24 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
}
if (!is_multicast_ether_addr(skb->data)) {
+ struct sta_info *next_hop;
+ bool mpp_lookup = true;
+
mpath = mesh_path_lookup(sdata, skb->data);
- if (!mpath)
+ if (mpath) {
+ mpp_lookup = false;
+ next_hop = rcu_dereference(mpath->next_hop);
+ if (!next_hop ||
+ !(mpath->flags & (MESH_PATH_ACTIVE |
+ MESH_PATH_RESOLVING)))
+ mpp_lookup = true;
+ }
+
+ if (mpp_lookup)
mppath = mpp_path_lookup(sdata, skb->data);
+
+ if (mppath && mpath)
+ mesh_path_del(mpath->sdata, mpath->dst);
}
/*