linux-stable.git/net/wireless/chan.c, branch linux-4.0.y

cfg80211: Fix 160 MHz channels with 80+80 and 160 MHz drivers

2014-12-12T11:18:47+00:00

The VHT supported channel width field is a two bit integer, not a
bitfield. cfg80211_chandef_usable() was interpreting it incorrectly and
ended up rejecting 160 MHz channel width if the driver indicated support
for both 160 and 80+80 MHz channels.

Cc: stable@vger.kernel.org (3.16+)
Fixes: 3d9d1d6656a73 ("nl80211/cfg80211: support VHT channel configuration")
       (however, no real drivers had 160 MHz support it until 3.16)
Signed-off-by: Jouni Malinen 
Signed-off-by: Johannes Berg

cfg80211: 802.11p OCB mode handling

2014-11-04T12:18:17+00:00

This patch adds new iface type (NL80211_IFTYPE_OCB) representing
the OCB (Outside the Context of a BSS) mode.
When establishing a connection to the network a cfg80211_join_ocb
function is called (particular nl80211_command is added as well).
A mandatory parameters during the ocb_join operation are 'center
frequency' and 'channel width (5/10 MHz)'.

Changes done in mac80211 are minimal possible required to avoid
many warnings (warning: enumeration value 'NL80211_IFTYPE_OCB'
not handled in switch) during compilation. Full functionality
(where needed) is added in the following patch.

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

cfg80211: fix integer signedness in chandef_primary_freqs()

2014-10-29T17:42:51+00:00

The helper function can't ever create negative values, so use
u32 pointers as the function arguments as the caller does.

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

cfg80211: pass the actual iftype when calling cfg80211_chandef_dfs_required()

2014-05-15T12:50:34+00:00

There is no need to pass NL80211_IFTYPE_UNSPECIFIED when calling
cfg80211_chandef_dfs_required() since we always already have the
interface type.  So, pass the actual interface type instead.

Additionally, have cfg80211_chandef_dfs_required() WARN if the passed
interface type is NL80211_IFTYPE_UNSPECIFIED, so we can detect
problems more easily.

Tested-by: Janusz Dziedzic 
Reported-by: Eliad Peller 
Signed-off-by: Luciano Coelho 
Signed-off-by: Johannes Berg

cfg80211: fix start_radar_detection issue

2014-05-14T14:42:22+00:00

After patch:
cfg80211/mac80211: refactor cfg80211_chandef_dfs_required()

start_radar_detection always fail with -EINVAL.

Acked-by: Luciano Coelho 
Signed-off-by: Janusz Dziedzic 
Signed-off-by: Johannes Berg

cfg80211: Add attributes describing prohibited channel bandwidth

2014-04-25T15:38:23+00:00

Since there are frequency bands (e.g. 5.9GHz) allowing channels
with only 10 or 5 MHz bandwidth, this patch adds attributes that
allow keeping track about this information.

When channel attributes are reported to user-space, make sure to
not break old tools, i.e. if the 'split wiphy dump' is enabled,
report the extra attributes (if present) describing the bandwidth
restrictions.  If the 'split wiphy dump' is not enabled,
completely omit those channels that have flags set to either
IEEE80211_CHAN_NO_10MHZ or IEEE80211_CHAN_NO_20MHZ.

Add the check for new bandwidth restriction flags in
cfg80211_chandef_usable() to comply with the restrictions.

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

cfg80211: change wiphy_to_dev function name

2014-04-25T15:33:04+00:00

Name wiphy_to_rdev is more accurate to describe what the function
does, i.e., return a pointer pointing to struct
cfg80211_registered_device.

Signed-off-by: Zhao, Gang 
Signed-off-by: Johannes Berg

cfg80211: Fix GO Concurrent relaxation on UNII-3

2014-04-25T14:47:33+00:00

At some locations, channels 149-165 are considered a single
bundle, while at some other locations, e.g., Indonesia, channels
149-161 are considered a single bundle, while channel 165 belongs
to a different bundle. This means that:

1. A station interface connection to an AP on channel 165 allows
   the instantiation of a P2P GO on channels 149-165.
2. A station interface connection to an AP on channels 149-161
   does NOT allow the instantiation of a P2P GO on channel 165.

Fix this.

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

cfg80211/mac80211: refactor cfg80211_chandef_dfs_required()

2014-04-09T08:55:41+00:00

Some interface types don't require DFS (such as STATION, P2P_CLIENT
etc).  In order to centralize these decisions, make
cfg80211_chandef_dfs_required() take the iftype into consideration.

Signed-off-by: Luciano Coelho 
Signed-off-by: Johannes Berg