linux-stable.git/net/wireless, branch v5.1.9

mac80211/cfg80211: update bss channel on channel switch

2019-05-31T13:43:22+00:00

[ Upstream commit 5dc8cdce1d722c733f8c7af14c5fb595cfedbfa8 ]

FullMAC STAs have no way to update bss channel after CSA channel switch
completion. As a result, user-space tools may provide inconsistent
channel info. For instance, consider the following two commands:
$ sudo iw dev wlan0 link
$ sudo iw dev wlan0 info
The latter command gets channel info from the hardware, so most probably
its output will be correct. However the former command gets channel info
from scan cache, so its output will contain outdated channel info.
In fact, current bss channel info will not be updated until the
next [re-]connect.

Note that mac80211 STAs have a workaround for this, but it requires
access to internal cfg80211 data, see ieee80211_chswitch_work:

	/* XXX: shouldn't really modify cfg80211-owned data! */
	ifmgd->associated->channel = sdata->csa_chandef.chan;

This patch suggests to convert mac80211 workaround into cfg80211 behavior
and to update current bss channel in cfg80211_ch_switch_notify.

Signed-off-by: Sergey Matyukevich 
Signed-off-by: Johannes Berg 
Signed-off-by: Sasha Levin

cfg80211: Notify previous user request during self managed wiphy registration

2019-04-23T11:45:30+00:00

Commit c82c06ce43d3("cfg80211: Notify all User Hints To self managed wiphys")
notified all new user hints to self managed wiphy's after device registration.
But it didn't do this for anything other than cell base hints done before
registration.

This needs to be done during wiphy registration of a self managed device also,
so that the previous user settings are retained.

Fixes: c82c06ce43d3 ("cfg80211: Notify all User Hints To self managed wiphys")
Signed-off-by: Sriram R 
Signed-off-by: Johannes Berg

nl80211: Add NL80211_FLAG_CLEAR_SKB flag for other NL commands

2019-03-29T10:23:09+00:00

This commit adds NL80211_FLAG_CLEAR_SKB flag to other NL commands
that carry key data to ensure they do not stick around on heap
after the SKB is freed.

Also introduced this flag for NL80211_CMD_VENDOR as there are sub
commands which configure the keys.

Signed-off-by: Sunil Dutt 
Signed-off-by: Johannes Berg

cfg80211: Use kmemdup in cfg80211_gen_new_ie()

2019-03-29T10:22:55+00:00

Use kmemdup rather than duplicating its implementation

Signed-off-by: YueHaibing 
Signed-off-by: Johannes Berg

cfg80211: Change an 'else if' into an 'else' in cfg80211_calculate_bitrate_he

2019-03-29T10:22:23+00:00

When building with -Wsometimes-uninitialized, Clang warns:

net/wireless/util.c:1223:11: warning: variable 'result' is used
uninitialized whenever 'if' condition is false
[-Wsometimes-uninitialized]

Clang can't evaluate at this point that WARN(1, ...) always returns true
because __ret_warn_on is defined as !!(condition), which isn't
immediately evaluated as 1. Change this branch to else so that it's
clear to Clang that we intend to bail out here.

Link: https://github.com/ClangBuiltLinux/linux/issues/382
Suggested-by: Nick Desaulniers 
Signed-off-by: Nathan Chancellor 
Reviewed-by: Nick Desaulniers 
Reviewed-by: Arnd Bergmann 
Signed-off-by: Johannes Berg

cfg80211: Handle WMM rules in regulatory domain intersection

2019-03-29T10:20:58+00:00

The support added for regulatory WMM rules did not handle
the case of regulatory domain intersections. Fix it.

Signed-off-by: Ilan Peer 
Fixes: 230ebaa189af ("cfg80211: read wmm rules from regulatory database")
Signed-off-by: Luca Coelho 
Signed-off-by: Johannes Berg

Merge remote-tracking branch 'net-next/master' into mac80211-next

2019-02-22T12:48:13+00:00

Merge net-next to resolve a conflict and to get the mac80211
rhashtable fixes so further patches can be applied on top.

Signed-off-by: Johannes Berg

cfg80211: allow sending vendor events unicast

2019-02-22T12:46:43+00:00

Sometimes, we may want to transport higher bandwidth data
through vendor events, and in that case sending it multicast
is a bad idea. Allow vendor events to be unicast.

Signed-off-by: Johannes Berg

cfg80211: Report Association Request frame IEs in association events

2019-02-22T12:35:09+00:00

This extends the NL80211_CMD_ASSOCIATE event case to report
NL80211_ATTR_REQ_IE similarly to what is already done with the
NL80211_CMD_CONNECT events if the driver provides this information. In
practice, this adds (Re)Association Request frame information element
reporting to mac80211 drivers for the cases where user space SME is
used.

This provides more information for user space to figure out which
capabilities were negotiated for the association. For example, this can
be used to determine whether HT, VHT, or HE is used.

Signed-off-by: Jouni Malinen 
Signed-off-by: Johannes Berg

cfg80211: pmsr: use eth_broadcast_addr() to assign broadcast address

2019-02-22T12:34:30+00:00

This patch is to use eth_broadcast_addr() to assign broadcast address
insetad of memset().

Signed-off-by: Mao Wenan 
Signed-off-by: Johannes Berg