From 53e805111b69d55834f4e1ed0a31a97ea0b9e425 Mon Sep 17 00:00:00 2001 From: Javier Cardona Date: Thu, 7 Apr 2011 15:08:32 -0700 Subject: [PATCH] mac80211: ignore peer link requests from unauthenticated stations. Signed-off-by: Javier Cardona Signed-off-by: John W. Linville --- net/mac80211/mesh_plink.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index bafe25594e09..5d0dd9217e5f 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -372,6 +372,9 @@ int mesh_plink_open(struct sta_info *sta) __le16 llid; struct ieee80211_sub_if_data *sdata = sta->sdata; + if (!test_sta_flags(sta, WLAN_STA_AUTH)) + return -EPERM; + spin_lock_bh(&sta->lock); get_random_bytes(&llid, 2); sta->llid = llid; @@ -484,6 +487,12 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m return; } + if (sta && !test_sta_flags(sta, WLAN_STA_AUTH)) { + mpl_dbg("Mesh plink: Action frame from non-authed peer\n"); + rcu_read_unlock(); + return; + } + if (sta && sta->plink_state == PLINK_BLOCKED) { rcu_read_unlock(); return; -- GitLab