From: Javier Cardona <javier@cozybit.com>
To: "John W. Linville" <linville@tuxdriver.com>
Cc: Javier Cardona <javier@cozybit.com>,
Thomas Pedersen <thomas@cozybit.com>,
devel@lists.open80211s.org,
Johannes Berg <johannes@sipsolutions.net>,
linux-wireless@vger.kernel.org, jlopex@gmail.com
Subject: [PATCH] mac80211: Fix regression that allowed mpaths between non-peers.
Date: Thu, 6 Oct 2011 14:54:22 -0700 [thread overview]
Message-ID: <1317938062-1226-1-git-send-email-javier@cozybit.com> (raw)
Mesh paths should only exist over established peer links.
Signed-off-by: Javier Cardona <javier@cozybit.com>
---
net/mac80211/mesh_hwmp.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 6df7913..174040a 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -789,11 +789,20 @@ void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
struct ieee802_11_elems elems;
size_t baselen;
u32 last_hop_metric;
+ struct sta_info *sta;
/* need action_code */
if (len < IEEE80211_MIN_ACTION_SIZE + 1)
return;
+ rcu_read_lock();
+ sta = sta_info_get(sdata, mgmt->sa);
+ if (!sta || sta->plink_state != NL80211_PLINK_ESTAB) {
+ rcu_read_unlock();
+ return;
+ }
+ rcu_read_unlock();
+
baselen = (u8 *) mgmt->u.action.u.mesh_action.variable - (u8 *) mgmt;
ieee802_11_parse_elems(mgmt->u.action.u.mesh_action.variable,
len - baselen, &elems);
--
1.7.6
next reply other threads:[~2011-10-06 21:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-06 21:54 Javier Cardona [this message]
2011-10-07 7:50 ` [PATCH] mac80211: Fix regression that allowed mpaths between non-peers Johannes Berg
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