linux-stable.git/net/wireless/reg.c, branch linux-3.14.y

cfg80211: avoid mem leak on driver hint set

2015-01-27T16:18:54+00:00

commit 34f05f543f02350e920bddb7660ffdd4697aaf60 upstream.

In the already-set and intersect case of a driver-hint, the previous
wiphy regdomain was not freed before being reset with a copy of the
cfg80211 regdomain.

Signed-off-by: Arik Nemtsov 
Acked-by: Luis R. Rodriguez 
Signed-off-by: Johannes Berg 
Signed-off-by: Greg Kroah-Hartman

cfg80211: don't WARN about two consecutive Country IE hint

2015-01-27T16:18:54+00:00

commit 70dcec5a488a7b81779190ac8089475fe4b8b962 upstream.

This can happen and there is no point in added more
detection code lower in the stack. Catching these in one
single point (cfg80211) is enough. Stop WARNING about this
case.

This fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=89001

Fixes: 2f1c6c572d7b ("cfg80211: process non country IE conflicting first")
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg 
Signed-off-by: Greg Kroah-Hartman

cfg80211: fix few minor issues in reg_process_hint()

2014-06-07T17:28:10+00:00

commit 772f0389338cfcf96da1c178046dc7e1649ab554 upstream.

Fix the following issues in reg_process_hint():

1. Add verification that wiphy is valid before processing
   NL80211_REGDOMAIN_SET_BY_COUNTRY_IE.
2. Free the request in case of invalid initiator.
3. Remove WARN_ON check on reg_request->alpha2 as it is not a
   pointer.

Signed-off-by: Ilan Peer 
Signed-off-by: Johannes Berg 
Signed-off-by: Luis R. Rodriguez 
Signed-off-by: Greg Kroah-Hartman

cfg80211: regulatory: reset regdomain in case of error

2014-02-25T15:27:04+00:00

Reset regdomain to world regdomain in case
of errors in set_regdom() function.

This will fix a problem with such scenario:
- iw reg set US
- iw reg set 00
- iw reg set US
The last step always fail and we get deadlock
in kernel regulatory code. Next setting new
regulatory wasn't possible due to:

Pending regulatory request, waiting for it to be processed...

Signed-off-by: Janusz Dziedzic 
Acked-by: Luis R. Rodriguez 
Signed-off-by: Johannes Berg

cfg80211: bugfix in regulatory user hint process

2014-02-19T10:56:48+00:00

After processing hint_user, we would want to schedule the
timeout work only if we are actually waiting to CRDA. This happens
when the status is not "IGNORE" nor "ALREADY_SET".

Signed-off-by: Inbal Hacohen 
Signed-off-by: Johannes Berg

cfg80211: make regulatory_hint() remove REGULATORY_CUSTOM_REG

2014-01-13T19:46:58+00:00

The REGULATORY_CUSTOM_REG can be used during early init with
the goal of overriding the wiphy's default regulatory settings
in case the alpha2 of the device is not known. In the case that
the alpha2 becomes known lets avoid having drivers having to
clear the REGULATORY_CUSTOM_REG flag by doing it for them
when regulatory_hint() is used.

Cc: Sujith Manoharan 
Signed-off-by: Luis R. Rodriguez 
Signed-off-by: John W. Linville

cfg80211: add reg_get_dfs_region()

2013-12-03T12:53:40+00:00

This can be used outside of the regulatory context for any checks
on the DFS region. The central cfg80211 dfs_region is always used
and if it does not match with the wiphy a debug print is issued.

Signed-off-by: Luis R. Rodriguez 
Signed-off-by: Johannes Berg

cfg80211: replace print_dfs_region() with reg_dfs_region_str() helper

2013-11-25T19:52:18+00:00

This lets us later reuse the more generic reg_dfs_region_str().

Signed-off-by: Luis R. Rodriguez 
Signed-off-by: Johannes Berg

cfg80211: distinguish unset DFS region from unknown

2013-11-25T19:52:16+00:00

Signed-off-by: Luis R. Rodriguez 
Signed-off-by: Johannes Berg

cfg80211: intersection dfs regions when intersecting regdomains

2013-11-25T19:52:14+00:00

Only allow DFS to be set if the DFS regions agree.

Signed-off-by: Luis R. Rodriguez 
Signed-off-by: Johannes Berg