kernel/git/stable/linux.git/net/mac80211/util.c, branch linux-3.6.y

mac80211: don't send null data packet when not associated

2012-11-26T20:14:05+00:00

commit 20f544eea03db4b498942558b882d463ce575c3e upstream. On resume or firmware recovery, mac80211 sends a null data packet to see if the AP is still around and hasn't disconnected us. However, it always does this even if it wasn't even connected before, leading to a warning in the new channel context code. Fix this by checking that it's associated. Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg Signed-off-by: Greg Kroah-Hartman

mac80211: use blacklist for duplicate IE check

2012-11-17T21:18:30+00:00

commit 9690fb169b433a66485c808e4fc352b8a0f8d866 upstream. Instead of the current whitelist which accepts duplicates only for the quiet and vendor IEs, use a blacklist of all IEs (that we currently parse) that can't be duplicated. This avoids detecting a beacon as corrupt in the future when new IEs are added that can be duplicated. Signed-off-by: Paul Stewart Signed-off-by: Johannes Berg Signed-off-by: Greg Kroah-Hartman

mac80211: use ieee80211_free_txskb in a few more places

2012-10-31T17:10:20+00:00

commit d4fa14cd62bd078c8e3ef39283b9f237e5b2ff0f upstream. Free tx status skbs when draining power save buffers, pending frames, or when tearing down a vif. Fixes remaining conditions that can lead to hostapd/wpa_supplicant hangs when running out of socket write memory. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville Signed-off-by: Greg Kroah-Hartman

mac80211: iterate the virtual monitor interface

2012-07-12T10:10:50+00:00

If the virtual monitor interface is requested by the driver, it should also be iterated over when the driver wants to iterate all active interfaces. To allow that protect it with the iflist_mtx. Change-Id: I58ac5de2f4ce93d12c5a98ecd2859f60158d5d69 Signed-off-by: Johannes Berg

mac80211: fix invalid band deref building preq IEs

2012-07-12T10:10:42+00:00

The function building probe-request IEs does not validate the band is supported before dereferencing it. This can result in a panic when all bands are traversed, as done during sched-scan start. Warn when this happens and return an empty probe request. Also fix sched-scan to not waste memory on unsupported bands. Signed-off-by: Arik Nemtsov Signed-off-by: Johannes Berg

mac80211: fix crash with single-queue drivers

2012-07-06T13:26:58+00:00

Larry (and some others I think) reported that with single-queue drivers mac80211 crashes when waking the queues. This happens because we allocate just a single queue for each virtual interface in case the driver doesn't have at least 4 queues, but the code stopping/waking the virtual interface queues wasn't taking this into account. Reported-by: Larry Finger Tested-by: Larry Finger Signed-off-by: Johannes Berg

mac80211: always set in_reconfig=false on wakeup

2012-07-06T06:33:05+00:00

If the interfaces were removed just before a restart work was started, open_count will be 0, and most of the reconfig work will be skipped, including the resetting of local->in_reconfig to false. Leaving local->inconfig = true will result in dropping any incoming packet. Fix it by always setting local->in_reconfig = false (even if there are no active interfaces). Signed-off-by: Eliad Peller Signed-off-by: Johannes Berg

mac80211: include VHT capability IE in probe requests

2012-07-02T13:13:09+00:00

Insert the VHT capability IE into probe requests. Signed-off-by: Mahesh Palivela Signed-off-by: Johannes Berg

mac80211: don't expose ieee80211_add_srates_ie()

2012-06-28T08:35:50+00:00

This and ieee80211_add_ext_srates_ie() aren't exported, so can't be used by drivers anyway, but there's also no reason that they should be so make them private to mac80211 and use sdata instead of vif arguments. Acked-by: Arik Nemtsov Signed-off-by: Johannes Berg

mac80211: stop Rx during HW reconfig

2012-06-18T17:18:53+00:00

While HW reconfig is in progress, drop all incoming Rx. This prevents incoming packets from changing the internal state of the driver or calling callbacks of the low level driver while it is in inconsistent state. Signed-off-by: Arik Nemtsov Signed-off-by: Johannes Berg