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authorJohannes Berg <johannes.berg@intel.com>2011-12-06 10:39:40 +0100
committerJohn W. Linville <linville@tuxdriver.com>2011-12-06 16:07:07 -0500
commit3df6eaea76a9e1351b539541c0314129a0e4b10c (patch)
treed5dcdafdcf236e3293eeca39db9715292389e88b /net/mac80211
parentaa5b549215f85cf48a7040bc9d33c4dae0c7d11a (diff)
downloadlinux-0-day-3df6eaea76a9e1351b539541c0314129a0e4b10c.tar.gz
linux-0-day-3df6eaea76a9e1351b539541c0314129a0e4b10c.tar.xz
mac80211: accept public action frames with mismatched BSSID
Arik's patch "mac80211: allow action frames with unknown BSSID in GO mode" allowed any action frames in P2P mode to go through, but only to cooked monitor interfaces as the IEEE80211_RX_RA_MATCH was still cleared. As a result my no-monitor patches broke invitation responses. Instead of allowing any action frames in P2P GO mode to go through with a wrong BSSID like that patch did, allow all public action frames. They will never be processed by mac80211, but can be reported via nl80211 then. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/rx.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 2a85fdfebde2c..7d226417ef462 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2797,10 +2797,17 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
return 0;
} else if (!ieee80211_bssid_match(bssid,
sdata->vif.addr)) {
+ /*
+ * Accept public action frames even when the
+ * BSSID doesn't match, this is used for P2P
+ * and location updates. Note that mac80211
+ * itself never looks at these frames.
+ */
+ if (!(status->rx_flags & IEEE80211_RX_IN_SCAN) &&
+ ieee80211_is_public_action(hdr, skb->len))
+ return 1;
if (!(status->rx_flags & IEEE80211_RX_IN_SCAN) &&
- !ieee80211_is_beacon(hdr->frame_control) &&
- !(ieee80211_is_action(hdr->frame_control) &&
- sdata->vif.p2p))
+ !ieee80211_is_beacon(hdr->frame_control))
return 0;
status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
}