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18890d4b89
linux/net/mac80211
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Helmut Schaa 18890d4b89 mac80211: Disable hw crypto for GTKs on AP VLAN interfaces 
When using AP VLAN interfaces, each VLAN interface should be in its own
broadcast domain. Hostapd achieves this by assigning different GTKs to
different AP VLAN interfaces.

However, mac80211 drivers are not aware of AP VLAN interfaces and as
such mac80211 sends the GTK to the driver in the context of the base AP
mode interface. This causes problems when multiple AP VLAN interfaces
are used since the driver will use the same key slot for the different
GTKs (there's no way for the driver to distinguish the different GTKs
from different AP VLAN interfaces). Thus, only the clients associated
to one AP VLAN interface (the one that was created last) can actually
use broadcast traffic.

Fix this by not programming any GTKs for AP VLAN interfaces into the hw
but fall back to using software crypto. The GTK for the underlying AP
interface is still sent to the driver.

That means, broadcast traffic to stations associated to an AP VLAN
interface is encrypted in software whereas broadcast traffic to
stations associated to the non-VLAN AP interface is encrypted in
hardware.

Cc: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-22 15:48:51 -05:00
..
aes_ccm.c mac80211: Remove redundant checks for NULL before calls to crypto_free_cipher() 2010-11-15 13:26:11 -05:00
aes_ccm.h
aes_cmac.c mac80211: Remove redundant checks for NULL before calls to crypto_free_cipher() 2010-11-15 13:26:11 -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: avoid transmitting delBA to old AP 2010-10-06 16:30:40 -04:00
agg-tx.c mac80211: avoid transmitting delBA to old AP 2010-10-06 16:30:40 -04:00
cfg.c nl80211/mac80211: Report signal average 2010-11-18 14:22:20 -05:00
cfg.h
chan.c cfg80211/mac80211: use lockdep_assert_held 2010-09-16 15:46:00 -04:00
debugfs_key.c mac80211: refactor debugfs function generation code 2010-11-15 13:24:48 -05:00
debugfs_key.h mac80211: 802.11w - Use BIP (AES-128-CMAC) 2009-01-29 16:00:03 -05:00
debugfs_netdev.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-10-23 11:47:02 -07:00
debugfs_netdev.h mac80211: reduce reliance on netdev 2009-12-21 18:38:52 -05:00
debugfs_sta.c mac80211: refactor debugfs function generation code 2010-11-15 13:24:48 -05:00
debugfs_sta.h
debugfs.c mac80211: refactor debugfs function generation code 2010-11-15 13:24:48 -05:00
debugfs.h mac80211: refactor debugfs function generation code 2010-11-15 13:24:48 -05:00
driver-ops.h mac80211: Add antenna configuration 2010-11-16 16:37:05 -05:00
driver-trace.c mac80211: fix sparse warnings/errors 2009-08-04 16:43:25 -04:00
driver-trace.h mac80211: Add antenna configuration 2010-11-16 16:37:05 -05:00
event.c cfg80211: use proper allocation flags 2009-07-10 15:01:49 -04:00
ht.c mac80211: fix SMPS request 2010-10-13 15:45:23 -04:00
ibss.c mac80211: add support for setting the ad-hoc multicast rate 2010-11-16 16:39:08 -05:00
ieee80211_i.h mac80211: fix powersaving clients races 2010-11-17 16:19:33 -05:00
iface.c mac80211: add probe request filter flag 2010-10-13 15:45:22 -04:00
Kconfig nl80211/mac80211: Report signal average 2010-11-18 14:22:20 -05:00
key.c mac80211: Disable hw crypto for GTKs on AP VLAN interfaces 2010-11-22 15:48:51 -05:00
key.h cfg80211/mac80211: allow per-station GTKs 2010-10-06 16:30:40 -04:00
led.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
led.h
main.c mac80211: Fix scan_ies_len to include DS Params 2010-10-27 15:46:51 -04:00
Makefile mac80211: add the minstrel_ht rate control algorithm 2010-06-02 16:12:59 -04:00
mesh_hwmp.c mac80211: use common work struct 2010-06-14 15:38:17 -04:00
mesh_pathtbl.c mac80211: use common work struct 2010-06-14 15:38:17 -04:00
mesh_plink.c mac80211: fix possible null-pointer de-reference 2010-10-11 15:04:20 -04:00
mesh.c mac80211: pull mgmt frame rx into rx handler 2010-06-14 15:39:26 -04:00
mesh.h Fix spelling fuction -> function in comments 2010-08-09 11:22:49 +02:00
michael.c
michael.h
mlme.c mac80211: Add function to get probe request template for current AP 2010-11-16 16:37:08 -05:00
offchannel.c mac80211: disable beacon monitor while going offchannel 2010-09-16 15:46:17 -04:00
pm.c mac80211: assure we also cancel deferred scan request 2010-10-06 16:30:42 -04:00
rate.c mac80211: add support for setting the ad-hoc multicast rate 2010-11-16 16:39:08 -05:00
rate.h mac80211: add the minstrel_ht rate control algorithm 2010-06-02 16:12:59 -04:00
rc80211_minstrel_debugfs.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
rc80211_minstrel_ht_debugfs.c mac80211: disallow seeks in minstrel debug code 2010-09-16 10:33:17 +02:00
rc80211_minstrel_ht.c mac80211: minstrel_ht - reduce the overhead of rate sampling 2010-11-15 13:24:21 -05:00
rc80211_minstrel_ht.h minstrel_ht: move minstrel_mcs_groups declaration to header file 2010-06-24 15:42:18 -04:00
rc80211_minstrel.c minstrel: don't complain about feedback for unrequested rates 2010-07-26 15:09:04 -04:00
rc80211_minstrel.h minstrel: make the rate control ops reusable from another rc implementation 2010-03-10 17:44:23 -05:00
rc80211_pid_algo.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
rc80211_pid_debugfs.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-10-23 11:47:02 -07:00
rc80211_pid.h mac80211/drivers: rewrite the rate control API 2008-10-31 19:00:23 -04:00
rx.c nl80211/mac80211: Report signal average 2010-11-18 14:22:20 -05:00
scan.c mac80211: fix sw scan locking 2010-10-07 14:41:27 -04:00
spectmgmt.c mac80211: reduce reliance on netdev 2009-12-21 18:38:52 -05:00
sta_info.c nl80211/mac80211: Report signal average 2010-11-18 14:22:20 -05:00
sta_info.h nl80211/mac80211: Report signal average 2010-11-18 14:22:20 -05:00
status.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-10-07 14:39:03 -04:00
tkip.c mac80211: remove wep dependency 2010-07-08 16:35:50 -04:00
tkip.h mac80211: remove wep dependency 2010-07-08 16:35:50 -04:00
tx.c mac80211: add support for setting the ad-hoc multicast rate 2010-11-16 16:39:08 -05:00
util.c mac80211: fix powersaving clients races 2010-11-17 16:19:33 -05:00
wep.c mac80211: don't kmalloc 16 bytes 2010-10-11 15:04:23 -04:00
wep.h mac80211: remove wep dependency 2010-07-08 16:35:50 -04:00
wme.c mac80211: defines for AC numbers 2010-11-17 16:19:31 -05:00
wme.h mac80211: fix skb buffering issue 2010-01-05 16:21:40 -05:00
work.c mac80211: per interface idle notification 2010-08-16 15:26:40 -04:00
wpa.c mac80211: move packet flags into packet 2010-09-27 15:57:54 -04:00
wpa.h mac80211: 802.11w - Add BIP (AES-128-CMAC) 2009-01-29 16:00:02 -05:00