linux-stable.git/net/wireless/reg.c, branch v3.18

cfg80211: avoid duplicate entries on regdomain intersection

2014-09-05T11:52:08+00:00

The regdom intersection code simply tries intersecting
each rule of the source with each rule of the target.

Since the resulting intersections are not observed
as a whole, this can result in multiple overlapping/duplicate
entries.

Make the rule addition a bit more smarter, by looking
for rules that can be contained within other rules,
and adding only extended ones.

Signed-off-by: Eliad Peller 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

cfg80211: add Intel Mobile Communications copyright

2014-09-05T11:52:06+00:00

Our legal structure changed at some point (see wikipedia), but
we forgot to immediately switch over to the new copyright
notice.

For files that we have modified in the time since the change,
add the proper copyright notice now.

Signed-off-by: Johannes Berg 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

Revert "cfg80211: Use 5MHz bandwidth by default when checking usable channels"

2014-06-23T09:06:28+00:00

This reverts commit 8eca1fb692cc9557f386eddce75c300a3855d11a.

Felix notes that this broke regulatory, leaving channel 12 open for AP
operation in the US regulatory domain where it isn't permitted.

Link: http://mid.gmane.org/53A6C0FF.9090104@openwrt.org
Reported-by: Felix Fietkau 
Signed-off-by: Johannes Berg

cfg80211: don't set reg timeout for user-handled hint

2014-05-21T07:15:18+00:00

Otherwise every "indoor" setting by usermode will cause a regdomain reset.

Acked-by: Luis R. Rodriguez 
Signed-off-by: Arik Nemtsov 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

cfg80211: Use 5MHz bandwidth by default when checking usable channels

2014-04-25T15:39:32+00:00

Current code checks if the 20MHz bandwidth is allowed for
particular channel -- if it is not, the channel is disabled.
Since we need to use 5/10 MHz channels, this code is modified in
the way that the default bandwidth to check is 5MHz. If the
maximum bandwidth allowed by the channel is smaller than 5MHz,
the channel is disabled. Otherwise the channel is used and the
flags are set according to the bandwidth allowed by the channel.

Signed-off-by: Rostislav Lisovy 
Signed-off-by: Johannes Berg

cfg80211: fix processing world regdomain when non modular

2014-04-22T15:17:56+00:00

This allows processing of the last regulatory request when
we determine its still pending. Without this if a regulatory
request failed to get processed by userspace we wouldn't
be able to re-process it later. An example situation that can
lead to an unprocessed last_request is enabling cfg80211 to
be built-in to the kernel, not enabling CFG80211_INTERNAL_REGDB
and the CRDA binary not being available at the time the udev
rule that kicks of CRDA triggers.

In such a situation we want to let some cfg80211 triggers
eventually kick CRDA for us again. Without this if the first
cycle attempt to kick off CRDA failed we'd be stuck without
the ability to change process any further regulatory domains.

cfg80211 will trigger re-processing of the regulatory queue
whenever schedule_work(®_work) is called, currently this
happens when:

  * suspend / resume
  * disconnect
  * a beacon hint gets triggered (non DFS 5 GHz AP found)
  * a regulatory request gets added to the queue

We don't have any specific opportunistic late boot triggers
to address a late mount of where CRDA resides though, adding
that should be done separately through another patch.
Without an opportunistic fix then this fix relies at least
one of the triggeres above to happen.

Reported-by: Sander Eikelenboom 
Signed-off-by: Luis R. Rodriguez 
Signed-off-by: Johannes Berg

cfg80211: avoid freeing last_request while in flight

2014-04-22T15:12:55+00:00

Avoid freeing the last request while it is being processed. This can
happen in some cases if reg_work is kicked for some reason while the
currently pending request is in flight.

Cc: Sander Eikelenboom 
Tested-by: Eliad Peller 
Tested-by: Colleen Twitty 
Signed-off-by: Arik Nemtsov 
Signed-off-by: Luis R. Rodriguez 
Signed-off-by: Johannes Berg

cfg80211: reg: set DFS CAC time in case of custom regd

2014-04-11T08:00:10+00:00

Set DFS CAC time also in case of using custom
and strict regulatory from drivers. In other case
we could have unset DFS CAC time directly after
driver loaded and before issue regulatory set from
user mode.

Signed-off-by: Janusz Dziedzic 
Signed-off-by: Johannes Berg

cfg80211: Enable GO operation on indoor channels

2014-04-09T08:55:37+00:00

Allow GO operation on a channel marked with IEEE80211_CHAN_INDOOR_ONLY
iff there is a user hint indicating that the platform is operating in
an indoor environment, i.e., the platform is a printer or media center
device.

Signed-off-by: Ilan Peer 
Signed-off-by: Johannes Berg

cfg80211: Add an option to hint indoor operation

2014-04-09T08:55:35+00:00

Add the option to hint the wireless core that it is operating in an indoor
environment.

Signed-off-by: Ilan Peer 
Signed-off-by: Johannes Berg