linux.git/net/wireless, branch v4.12-rc2

nl80211: correctly validate MU-MIMO groups

2017-05-08T09:24:34+00:00

Since groups 0 and 63 are invalid, we should check for those bits.
Note that the 802.11 spec specifies the *bit* order, but the CPU
doesn't care about bit order since it can't address bits, so it's
always treating BIT(0) as the lowest bit within a byte.

Reported-by: Jan Fuchs 
Signed-off-by: Johannes Berg

cfg80211: add request id to cfg80211_sched_scan_*() api

2017-04-28T12:51:43+00:00

Have proper request id filled in the SCHED_SCAN_RESULTS and
SCHED_SCAN_STOPPED notifications toward user-space by having the
driver provide it through the api.

Reviewed-by: Hante Meuleman 
Reviewed-by: Pieter-Paul Giesberts 
Reviewed-by: Franky Lin 
Signed-off-by: Arend van Spriel 
Signed-off-by: Johannes Berg

cfg80211: unify cfg80211_roamed() and cfg80211_roamed_bss()

2017-04-28T10:28:44+00:00

cfg80211_roamed() and cfg80211_roamed_bss() take the same arguments
except that cfg80211_roamed() requires the BSSID and
cfg80211_roamed_bss() requires the bss entry.

Unify the two functions by using a struct for driver initiated
roaming information so that either the BSSID or the bss entry can be
passed as an argument to the unified function.

Signed-off-by: Avraham Stern 
[modified the ath6k, brcm80211, rndis and wlan-ng drivers accordingly]
Signed-off-by: Luca Coelho 
[modify brcmfmac to remove the useless cast, spotted by Arend]
Signed-off-by: Johannes Berg

cfg80211: add request id parameter to .sched_scan_stop() signature

2017-04-26T21:17:40+00:00

For multiple scheduled scan support the driver needs to know which
scheduled scan request is being stopped. Pass the request id in the
.sched_scan_stop() callback.

Reviewed-by: Hante Meuleman 
Reviewed-by: Pieter-Paul Giesberts 
Reviewed-by: Franky Lin 
Signed-off-by: Arend van Spriel 
Signed-off-by: Johannes Berg

nl80211: add support for BSSIDs in scheduled scan matchsets

2017-04-26T21:17:39+00:00

This patch allows for the scheduled scan request to specify matchsets
for specific BSSIDs.

Reviewed-by: Hante Meuleman 
Reviewed-by: Pieter-Paul Giesberts 
Reviewed-by: Franky Lin 
Signed-off-by: Arend van Spriel 
[docs, netlink policy fix]
Signed-off-by: Johannes Berg

nl80211: allow multiple active scheduled scan requests

2017-04-26T21:17:38+00:00

This patch implements the idea to have multiple scheduled scan requests
running concurrently. It mainly illustrates how to deal with the incoming
request from user-space in terms of backward compatibility. In order to
use multiple scheduled scans user-space needs to provide a flag attribute
NL80211_ATTR_SCHED_SCAN_MULTI to indicate support. If not the request is
treated as a legacy scan.

Drivers currently supporting scheduled scan are now indicating they support
a single scheduled scan request. This obsoletes WIPHY_FLAG_SUPPORTS_SCHED_SCAN.

Reviewed-by: Hante Meuleman 
Reviewed-by: Pieter-Paul Giesberts 
Reviewed-by: Franky Lin 
Signed-off-by: Arend van Spriel 
[clean up netlink destroy path to avoid allocations, code cleanups]
Signed-off-by: Johannes Berg

cfg80211: simplify netlink socket owner interface deletion

2017-04-26T21:17:35+00:00

There's no need to allocate a portid structure and then, for
each of those, walk the interfaces - we can just add a flag
to each interface and walk those directly. Due to padding in
the struct, we can even do it without any memory cost, and
it even simplifies the code.

Signed-off-by: Johannes Berg

cfg80211: Fix dfs state propagation for non-DFS center channel

2017-04-25T19:42:52+00:00

When part of a bigger bandwidth (160 MHz) channel falls in DFS
channel range it is possible that the  center frequency may not
necessarily be a radar channel. Remove the sanity check on channel
flag for IEEE80211_CHAN_RADAR in regulatory_propagate_dfs_state(),
this should fix the dfs state propagation for non-DFS center freq
which has DFS channels in it's bandwidth, should also fix unnecessary
WARN_ON() spam in regulatory_propagate_dfs_state().

Fixes: 8976672736d6 ("cfg80211: Share Channel DFS state across wiphys of same DFS domain")
Reported-by: Johannes Berg 
Signed-off-by: Vasanthakumar Thiagarajan 
Signed-off-by: Johannes Berg

Merge tag 'mac80211-next-for-davem-2017-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

2017-04-20T17:54:40+00:00

Johannes Berg says:

====================
My last pull request has been a while, we now have:
 * connection quality monitoring with multiple thresholds
 * support for FILS shared key authentication offload
 * pre-CAC regulatory compliance - only ETSI allows this
 * sanity check for some rate confusion that hit ChromeOS
   (but nobody else uses it, evidently)
 * some documentation updates
 * lots of cleanups
====================

Signed-off-by: David S. Miller

nl80211: Fix enum type of variable in nl80211_put_sta_rate()

2017-04-18T09:03:03+00:00

rate_flg is of type 'enum nl80211_attrs', however it is assigned with
'enum nl80211_rate_info' values. Change the type of rate_flg accordingly.

Signed-off-by: Matthias Kaehlcke 
Signed-off-by: Johannes Berg