linux-stable.git/net/wireless/scan.c, branch v3.12

wireless: scan: Remove comment to compare_ether_addr

2013-09-04T02:34:48+00:00

This function is being removed, so remove the reference to it.

Signed-off-by: Joe Perches 
Signed-off-by: David S. Miller

nl80211: add scan width to bss and scan request structs

2013-07-16T06:58:01+00:00

To allow scanning and working with 5 MHz and 10 MHz BSS, extend the
inform bss commands and add wrappers to take 5 and 10 MHz bss into
account.

Signed-off-by: Simon Wunderlich 
Signed-off-by: Mathias Kretschmer 
Signed-off-by: Johannes Berg

wireless: add comments about bss refcounting

2013-06-24T13:54:45+00:00

Should help the next person that tries to understand
the bss refcounting logic.

Signed-off-by: Ben Greear 
Signed-off-by: Johannes Berg

cfg80211: vastly simplify locking

2013-05-24T22:02:15+00:00

Virtually all code paths in cfg80211 already (need to) hold
the RTNL. As such, there's little point in having another
four mutexes for various parts of the code, they just cause
lock ordering issues (and much of the time, the RTNL and a
few of the others need thus be held.)

Simplify all this by getting rid of the extra four mutexes
and just use the RTNL throughout. Only a few code changes
were needed to do this and we can get rid of a work struct
for bonus points.

Signed-off-by: Johannes Berg

cfg80211: move cfg80211_get_dev_from_ifindex under wext

2013-05-24T22:02:13+00:00

The function is only used and needed by the wext code
for scanning, so move it there.

Signed-off-by: Johannes Berg

cfg80211: always check for scan end on P2P device

2013-03-24T10:15:58+00:00

If a P2P device wdev is removed while it has a scan, then the
scan completion might crash later as it is already freed by
that time. To avoid the crash always check the scan completion
when the P2P device is being removed for some reason. If the
driver already canceled it, don't want and free it, otherwise
warn and leak it to avoid later crashes.

In order to do this, locking needs to be changed away from the
rdev mutex (which can't always be guaranteed). For now, use
the sched_scan_mtx instead, I'll rename it to just scan_mtx in
a later patch.

Signed-off-by: Johannes Berg

cfg80211: fix potential BSS memory leak and update

2013-03-07T11:55:32+00:00

In the odd case that while updating information from a beacon,
a BSS was found that is part of a hidden group, we drop the
new information. In this case, however, we leak the IE buffer
from the update, and erroneously update the entry's timestamp
so it will never time out. Fix both these issues.

Cc: Larry Finger 
Signed-off-by: Johannes Berg

Merge remote-tracking branch 'mac80211/master' into HEAD

2013-02-15T08:41:21+00:00

nl80211/cfg80211: add radar detection command/event

2013-02-15T08:40:18+00:00

Add new NL80211_CMD_RADAR_DETECT, which starts the Channel
Availability Check (CAC). This command will also notify the
usermode about events (CAC finished, CAC aborted, radar
detected, NOP finished).
Once radar detection has started it should continuously
monitor for radars as long as the channel is active.

This patch enables DFS for AP mode in nl80211/cfg80211.

Based on original patch by Victor Goldenshtein 

Signed-off-by: Simon Wunderlich 
[remove WIPHY_FLAG_HAS_RADAR_DETECT again -- my mistake]
Signed-off-by: Johannes Berg

cfg80211: check vendor IE length to avoid overrun

2013-02-13T09:14:17+00:00

cfg80211_find_vendor_ie() was checking only that the vendor IE would
fit in the remaining IEs buffer.  If a corrupt includes a vendor IE
that is too small, we could potentially overrun the IEs buffer.

Fix this by checking that the vendor IE fits in the reported IE length
field and skip it otherwise.

Reported-by: Jouni Malinen 
Signed-off-by: Luciano Coelho 
[change BUILD_BUG_ON to != 1 (from >= 2)]
Signed-off-by: Johannes Berg