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linux-stable/net/mac80211
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Johannes Berg f3b85252f0 mac80211: fix scan races and rework scanning 
There are some places marked
	/* XXX maybe racy? */
and they really are racy because there's no locking.

This patch reworks much of the scan code, and introduces proper
locking for the scan request as well as the internal scanning
(which is necessary for IBSS/managed modes). Helper functions
are added to call the scanning code whenever necessary. The
scan deferring is changed to simply queue the scanning work
instead of trying to start the scan in place, the scanning work
will then take care of the rest.

Also, currently when internal scans are requested for an interface
that is trying to associate, we reject such scans. This was not
intended, the mlme code has provisions to scan twice when it can't
find the BSS to associate with right away; this has never worked
properly. Fix this by not rejecting internal scan requests for an
interface that is associating.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
 		2009-05-06 15:14:31 -04:00
..
Kconfig mac80211: enable PS by default 2009-04-22 16:57:16 -04:00
Makefile mac80211: split IBSS/managed code 2009-02-27 14:51:42 -05:00
aes_ccm.c mac80211: aes_ccm.c remove crypto wrapper and extra args 2008-07-08 14:16:02 -04:00
aes_ccm.h mac80211: pass scratch buffer directly, remove additional pointers 2008-07-08 14:16:02 -04:00
aes_cmac.c mac80211: 802.11w - Add BIP (AES-128-CMAC) 2009-01-29 16:00:02 -05:00
aes_cmac.h mac80211: 802.11w - Add BIP (AES-128-CMAC) 2009-01-29 16:00:02 -05:00
agg-rx.c mac80211: Tear down aggregation sessions for suspend/resume 2009-03-27 20:12:55 -04:00
agg-tx.c mac80211/iwlwifi: move virtual A-MDPU queue bookkeeping to iwlwifi 2009-03-27 20:13:23 -04:00
cfg.c nl80211: Add set/get for frag/rts threshold and retry limits 2009-04-22 16:57:17 -04:00
cfg.h
…
debugfs.c nl80211: Add set/get for frag/rts threshold and retry limits 2009-04-22 16:57:17 -04:00
debugfs.h
…
debugfs_key.c mac80211: 802.11w - Use BIP (AES-128-CMAC) 2009-01-29 16:00:03 -05:00
debugfs_key.h mac80211: 802.11w - Use BIP (AES-128-CMAC) 2009-01-29 16:00:03 -05:00
debugfs_netdev.c mac80211: split IBSS/managed code 2009-02-27 14:51:42 -05:00
debugfs_netdev.h mac80211: revamp virtual interface handling 2008-07-14 14:30:07 -04:00
debugfs_sta.c mac80211: 802.11w - STA flag for MFP 2009-01-29 16:00:00 -05:00
debugfs_sta.h mac80211: RCU-ify STA info structure access 2008-03-06 15:30:46 -05:00
event.c nl80211: Add Michael MIC failure event 2009-04-22 16:54:28 -04:00
ht.c cfg80211: clean up includes 2009-04-22 16:57:17 -04:00
ibss.c mac80211: fix scan races and rework scanning 2009-05-06 15:14:31 -04:00
ieee80211_i.h mac80211: fix scan races and rework scanning 2009-05-06 15:14:31 -04:00
iface.c mac80211: convert to cfg80211 IBSS API 2009-04-22 16:57:17 -04:00
key.c mac80211: split IBSS/managed code 2009-02-27 14:51:42 -05:00
key.h mac80211: 802.11w - Use BIP (AES-128-CMAC) 2009-01-29 16:00:03 -05:00
led.c mac80211: rename files 2008-04-08 16:44:45 -04:00
led.h mac80211: rename files 2008-04-08 16:44:45 -04:00
main.c mac80211: fix scan races and rework scanning 2009-05-06 15:14:31 -04:00
mesh.c mac80211: use cfg80211s BSS infrastructure 2009-02-13 13:45:58 -05:00
mesh.h mac80211: use cfg80211s BSS infrastructure 2009-02-13 13:45:58 -05:00
mesh_hwmp.c mac80211: fix RX aggregation timeouts 2009-02-13 13:45:32 -05:00
mesh_pathtbl.c mac80211: mesh portal functionality support 2008-09-24 16:18:02 -04:00
mesh_plink.c wireless: restrict to 32 legacy rates 2009-01-29 16:01:09 -05:00
michael.c mac80211: remove ieee80211_get_hdr_info 2008-07-08 14:16:01 -04:00
michael.h mac80211: remove ieee80211_get_hdr_info 2008-07-08 14:16:01 -04:00
mlme.c mac80211: fix scan races and rework scanning 2009-05-06 15:14:31 -04:00
pm.c mac80211: add hardware restart function 2009-04-22 16:57:14 -04:00
rate.c mac80211: rate control status only for controlled packets 2009-03-27 20:13:15 -04:00
rate.h mac80211: rate control status only for controlled packets 2009-03-27 20:13:15 -04:00
rc80211_minstrel.c minstrel: fix warning if lowest supported rate index is not 0 2009-01-12 14:24:55 -05:00
rc80211_minstrel.h minstrel: improve performance for non-MRR drivers 2008-10-31 19:00:36 -04:00
rc80211_minstrel_debugfs.c mac80211: correct warnings in minstrel rate control algorithm 2008-10-27 17:46:11 -04:00
rc80211_pid.h mac80211/drivers: rewrite the rate control API 2008-10-31 19:00:23 -04:00
rc80211_pid_algo.c mac80211: Fix pid rate-setting algorithm to allow rate changes 2008-11-26 09:47:20 -05:00
rc80211_pid_debugfs.c mac80211/drivers: rewrite the rate control API 2008-10-31 19:00:23 -04:00
rx.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 2009-04-25 16:36:46 -07:00
scan.c mac80211: fix scan races and rework scanning 2009-05-06 15:14:31 -04:00
spectmgmt.c cfg80211: clean up includes 2009-04-22 16:57:17 -04:00
sta_info.c mac80211: convert to cfg80211 IBSS API 2009-04-22 16:57:17 -04:00
sta_info.h mac80211: convert to cfg80211 IBSS API 2009-04-22 16:57:17 -04:00
tkip.c mac80211: convert to %pM away from print_mac 2008-10-27 17:06:16 -07:00
tkip.h mac80211: tkip.c consolidate tkip IV writing in helper 2008-06-14 12:18:13 -04:00
tx.c wireless: remove some (bogus?) 'may be used uninitialized' warnings 2009-04-24 15:41:41 -04:00
util.c mac80211: validate TIM IE length (redux) 2009-04-22 16:57:18 -04:00
wep.c mac80211: rewrite fragmentation 2009-03-27 20:13:21 -04:00
wep.h mac80211: minor code cleanups 2008-10-31 18:05:59 -04:00
wext.c mac80211: remove IEEE80211_CONF_CHANGE_DYNPS_TIMEOUT 2009-04-22 16:57:20 -04:00
wme.c mac80211: Fix WMM ACM parsing and AC downgrade operation 2009-03-16 18:09:27 -04:00
wme.h mac80211: fix aggregation for hardware with ampdu queues 2009-02-27 14:51:42 -05:00
wpa.c nl80211: Add Michael MIC failure event 2009-04-22 16:54:28 -04:00
wpa.h mac80211: 802.11w - Add BIP (AES-128-CMAC) 2009-01-29 16:00:02 -05:00