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| author | Javier Cardona <javier@cozybit.com> | 2009-07-09 14:42:16 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-07-24 15:05:07 -0400 |
| commit | 10c836d7896e9d7b683a76f3cac3c289d8da72ef (patch) | |
| tree | e68ed929565d3960f6d431d353fc41932f410fdf /net/mac80211 | |
| parent | 4bde0f7d1dca0a7d886997eb8dee3fb47a6484e4 (diff) | |
| download | kernel-crypto-10c836d7896e9d7b683a76f3cac3c289d8da72ef.tar.gz kernel-crypto-10c836d7896e9d7b683a76f3cac3c289d8da72ef.tar.xz kernel-crypto-10c836d7896e9d7b683a76f3cac3c289d8da72ef.zip | |
mac80211: Assign next hop address to pending mesh frames
Assign next hop address to pending mesh frames once the path is resolved.
Regression. Frames transmitted when a mesh path was wating to be resolved were
being transmitted with an invalid Receiver Address.
[Changes since v1]
Suggested by Johannes:
- Improved frame_queue traversal
- Narower RCU scope
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/mesh_pathtbl.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index 479597e8858..f0304bfdcdf 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -55,7 +55,25 @@ static DEFINE_RWLOCK(pathtbl_resize_lock); */ void mesh_path_assign_nexthop(struct mesh_path *mpath, struct sta_info *sta) { + struct sk_buff *skb; + struct ieee80211_hdr *hdr; + struct sk_buff_head tmpq; + unsigned long flags; + rcu_assign_pointer(mpath->next_hop, sta); + + __skb_queue_head_init(&tmpq); + + spin_lock_irqsave(&mpath->frame_queue.lock, flags); + + while ((skb = __skb_dequeue(&mpath->frame_queue)) != NULL) { + hdr = (struct ieee80211_hdr *) skb->data; + memcpy(hdr->addr1, sta->sta.addr, ETH_ALEN); + __skb_queue_tail(&tmpq, skb); + } + + skb_queue_splice(&tmpq, &mpath->frame_queue); + spin_unlock_irqrestore(&mpath->frame_queue.lock, flags); } |