diff options
| author | Javier Cardona <javier@cozybit.com> | 2009-07-14 02:00:10 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-07-21 18:07:40 +0200 |
| commit | 35946a571099a50d2595c8866f07617d29558f53 (patch) | |
| tree | 6ebcff064919ba40cef1fab8b42c17efc4c37e2d /net/mac80211/mesh_pathtbl.c | |
| parent | mac80211_hwsim: fix use after free (diff) | |
| download | linux-35946a571099a50d2595c8866f07617d29558f53.tar.xz linux-35946a571099a50d2595c8866f07617d29558f53.zip | |
mac80211: use correct address for mesh Path Error
For forwarded frames, we save the precursor address in addr1 in case it
needs to be used to send a Path Error. mesh_path_discard_frame,
however, was using addr2 instead of addr1 to send Path Error frames, so
correct that and also make the comment regarding this more clear.
Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/mesh_pathtbl.c')
| -rw-r--r-- | net/mac80211/mesh_pathtbl.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index 02f8709a181e..479597e88583 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -494,8 +494,10 @@ void mesh_path_tx_pending(struct mesh_path *mpath) * @skb: frame to discard * @sdata: network subif the frame was to be sent through * - * If the frame was beign forwarded from another MP, a PERR frame will be sent - * to the precursor. + * If the frame was being forwarded from another MP, a PERR frame will be sent + * to the precursor. The precursor's address (i.e. the previous hop) was saved + * in addr1 of the frame-to-be-forwarded, and would only be overwritten once + * the destination is successfully resolved. * * Locking: the function must me called within a rcu_read_lock region */ @@ -510,7 +512,7 @@ void mesh_path_discard_frame(struct sk_buff *skb, u8 *ra, *da; da = hdr->addr3; - ra = hdr->addr2; + ra = hdr->addr1; mpath = mesh_path_lookup(da, sdata); if (mpath) dsn = ++mpath->dsn; |