cfg80211/mac80211: report signal strength for mgmt frames

Add the signal strength (in dBm only for now) to
frames that are received via nl80211's various
frame APIs.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Conflicts:

	drivers/net/wireless/ath/ath6kl/wmi.c
	include/linux/nl80211.h
	net/mac80211/rx.c

Change-Id: I86cccf6b308a3515c645b2b64f399957de9b6664
cfg80211: Add background scan period attribute.

Receive background scan period as part of connect
command and pass the same to the driver.

Signed-off-by: Bala Shanmugam <bkamatch@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Conflicts:

	include/linux/nl80211.h

Change-Id: I6551dada46dc576f0662071e48c46030ce862d13
net/wireless: Support to disable CCK rate for management frame

Provision to distinguish the P2P scan and the normal scan
with no_cck flag and thus disable the 11b rates for
p2p scan.

Change-Id: Ia4073a5f926c6ac97dffdee99f54ba53535fea85
Signed-off-by: Sunil Dutt Undekari<duttus@codeaurora.org>

Conflicts:

	include/linux/nl80211.h
	net/wireless/nl80211.c
	net/wireless/util.c
net/wireless: Check for number of sub bands

WiFi Drivers can advertize the number of bands dynamically.
A check has been added to see if the band information is
present and only then the values are extracted.
Without this check, a kernel crash shall occur as we would
extract the band information though the driver does not
advertize.

Change-Id: Ia726a692a3c2dcef2fcff0a59363053524c5f806
Signed-off-by: Sunil Dutt Undekari<duttus@codeaurora.org>
cfg80211: allow CFG80211_SIGNAL_TYPE_UNSPEC in station_info

The station_info struct had demanded dBm signal values, but the
cfg80211 wireless extensions implementation was also accepting
"unspecified" (i.e. RSSI) unit values while the nl80211 code was
completely unaware of them.  Resolve this by formally allowing the
"unspecified" units while making nl80211 ignore them.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
cfg80211: expose cfg80211_calculate_bitrate()

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Conflicts:

	include/net/cfg80211.h

Change-Id: I2e68210ed821f5a6308d9b8c4c04a2df6fa560f2
cfg80211: Add TDLS event to allow drivers to request operations

The NL80211_CMD_TDLS_OPER command was previously used only for userspace
request for the kernel code to perform TDLS operations. However, there
are also cases where the driver may need to request operations from
userspace, e.g., when using security on the AP path. Add a new cfg80211
function for generating a TDLS operation event for drivers to request a
new link to be set up (NL80211_TDLS_SETUP) or an existing link to be
torn down (NL80211_TDLS_TEARDOWN). Drivers can optionally use these
events, e.g., based on noticing data traffic being sent to a peer
station that is seen with good signal strength.

Change-Id: I778f5136fc4518bedcaed14a5412de4be6c85cf3
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Ng Chilam <chilamng@qca.qualcomm.com>
[Madan Mohan Koyyalamudi <mkoyya@codeaurora.org>: move changes from
include/uapi/linux/nl80211.h to include/linux/nl80211.h, remove trace.h,
remove trace_cfg80211_tdls_oper_request() in nl80211.c ]
Signed-off-by: Madan Mohan Koyyalamudi <mkoyya@codeaurora.org>
cfg80211: allow advertising VHT capabilities

Allow drivers to advertise their VHT capabilities
and export them to userspace via nl80211.

Change-Id: I2d2825a09dfddccca1bd3edacd7fc382d765bea5
CRs-fixed: 452921

Signed-off-by: Mahesh Palivela <maheshp@posedge.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
{nl,cfg}80211: Peer STA VHT caps

To save STAs VHT caps in AP mode

Change-Id: I1930ec05a3e079733c00837c93bda615289fceda
CRs-fixed: 452921

Signed-off-by: Mahesh Palivela <maheshp@posedge.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

Conflicts:

	include/linux/nl80211.h
	include/net/cfg80211.h
cfg80211: Pass station (extended) capability info to kernel

The information of the peer's capabilities and extended capabilities are
required for the driver to perform TDLS Peer UAPSD operations and off
channel operations. This information of the peer is passed from user space
using NL80211_CMD_SET_STATION command. This commit enhances
the function nl80211_set_station to pass the capability information of
the peer to the driver.

Similarly, there may be need for capability information for other modes,
so allow this to be provided with both add_station and change_station.

Change-Id: I1e626512a0f849ae05bbbd24c4e262d303b8f8ea
CRs-fixed: 452921

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

Conflicts:

	include/linux/nl80211.h
cfg80211: Pass TDLS peer's QoS/HT/VHT information during set_station

The information of the peer's capabilities is required for the driver
to perform TDLS Peer UAPSD operations. This information of the peer is
passed by the supplicant using NL80211_CMD_SET_STATION command. This
commit enhances the function nl80211_set_station to pass this
information of the peer to the driver in case this command is used
with the TDLS peer STA.

In addition, make the HT/VHT capability configuration handled more
consistently for other STA cases (reject both instead of just HT).

Change-Id: I08635df14f49711b04dfdad0daf8f874a340b5b7
CRs-fixed: 452921

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

Conflicts:

	net/mac80211/cfg.c
	net/wireless/nl80211.c
cfg80211: fix station change if TDLS isn't supported

Larry noticed (and bisected) that commit df881293c6ba9a12868491a717b25
"cfg80211: Pass TDLS peer's QoS/HT/VHT information during set_station"
broke secure connections. This is is the case only for drivers that
don't support TDLS, where any kind of change, even just the change of
authorized flag that is required for normal operation, was rejected
now. To fix this, remove the checks. I have some patches that will add
proper verification for all the different cases later.

Change-Id: Ieaf0f8a8ab922d42bccdb4957c55b8c3d9463a3f
CRs-fixed: 452921

Cc: Jouni Malinen <j@w1.fi>
Bisected-by: Larry Finger <Larry.Finger@lwfinger.net>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
cfg80211: enable TDLS on P2P client interfaces

There's no reason TDLS should be prevented on P2P client
interfaces, and most of the code already handles it, so
allow adding stations for it.

CRs-fixed: 458139
Change-Id: Id5bdde87aa6988731c91176cb5d54ffde975577c

Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
cfg80211: Extend support for IEEE 802.11r Fast BSS Transition

Add NL80211_CMD_UPDATE_FT_IES to support update of FT IEs to the
WLAN driver and NL80211_CMD_FT_EVENT to send FT events from the
WLAN driver. This will carry the target AP's MAC address along
cfg80211: Extend support for IEEE 802.11r Fast BSS Transition

Add NL80211_CMD_UPDATE_FT_IES to support update of FT IEs to the
WLAN driver and NL80211_CMD_FT_EVENT to send FT events from the
WLAN driver. This will carry the target AP's MAC address along
with the relevant Information Elements. This event is used to
report received FT IEs (MDIE, FTIE, RSN IE, TIE, RICIE). These
changes allow FT to be supported with drivers that use an internal
SME instead of user space option (like FT implementation in
wpa_supplicant with mac80211-based drivers).

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Git-commit: 355199e02b831fd4f652c34d6c7673d973da1369
Git-repo: http://git.kernel.org/cgit/linux/kernel/git/linville/
wireless-testing.git/
Change-Id: I439155b3d7bf4df9c45087a4deb6ec0cd7577225
CRs-fixed: 434525
[duttus@codeaurora.org: backport to 3.4-This commit includes the
changes from following commits to compile for jb_2.5.
5314526b1743e8e8614293db7d86e480b4fe9824 : cfg80211: add channel
switch notify event
98104fdeda63d57631c9f89e90a7b83b58fcee40 : cfg80211: add P2P
Device abstraction
f4e583c8935c6f52f9385ee7cfbea8f65c66a737 : nl/cfg80211: add the
NL80211_CMD_SET_MCAST_RATE command
ed44a951c72ab409f932b1c15914488308e86da2 : cfg80211/nl80211: Notify
connection request failure in AP mode
77765eaf5cfb6b8dd98ec8b54b411d74ff6095f1 : cfg80211/nl80211: add
API for MAC address ACLs.
04f39047af2a6df64b763ea5a271db24879d0391 : nl80211/cfg80211: add
radar detection command/event.
3713b4e364effef4b170c97d54528b1cdb16aa6b : nl80211: allow splitting
wiphy information in dumps.
ee2aca343c9aa64d277a75a5df043299dc84cfd9 : cfg80211: add ability
to override VHT capabilities.
355199e02b831fd4f652c34d6c7673d973da1369 : cfg80211: Extend
support for IEEE 802.11r Fast BSS Transition.]
Signed-off-by: Sunil Dutt <duttus@codeaurora.org>

Conflicts:

	include/linux/nl80211.h
	include/net/cfg80211.h
	net/wireless/nl80211.c
nl80211/cfg80211: add VHT MCS support

Add support for reporting and calculating VHT MCSes.

Note that I'm not completely sure that the bitrate
calculations are correct, nor that they can't be
simplified.

Change-Id: Id4c132850a85ff59f0fc16396763ed717689bec0
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Git-commit: db9c64cf8d9d3fcbc34b09d037f266d1fc9f928c
Git-repo:
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Sameer Thalappil <sameert@codeaurora.org>
cfg80211: Allow TDLS peer AID to be configured for VHT

VHT uses peer AID in the PARTIAL_AID field in TDLS frames. The
current design for TDLS is to first add a dummy STA entry before
completing TDLS Setup and then update information on this STA
entry based on what was received from the peer during the setup
exchange.

In theory, this could use NL80211_ATTR_STA_AID to set
the peer AID just like this is used in AP mode to set the AID
of an association station. However, existing cfg80211 validation
rules prevent this attribute from being used with set_station
operation. To avoid interoperability issues between different
kernel and user space version combinations, introduce a new
nl80211 attribute for the purpose of setting TDLS peer AID.
This attribute can be used in both the new_station and set_station
operations. It is not supposed to be allowed to change the AID
value during the lifetime of the STA entry, but that validation
is left for drivers to do in the change_station callback.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Git-commit: 5e4b6f5698421d94226cc2f80eae6d613c9acef8
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git
Change-Id: I1d2f6d2f5a291f91858b45ad004de66a0080f1d2
CRs-fixed: 483290
[duttus@codeaurora.org: backport to 3.4-This commit includes the
changes from following commits in include/linux/nl80211.h to compile
for msm-3.4.
5de17984898c5758fc6ebe08eccea9f4b6548914 :
cfg80211: introduce critical protocol indication from user-space.]
Signed-off-by: Sunil Dutt <duttus@codeaurora.org>

Conflicts:

	include/linux/nl80211.h
cfg80211: fix VHT TDLS peer AID verification

I (Johannes) accidentally applied the first version of the patch
("Allow TDLS peer AID to be configured for VHT"). Now apply just
the changes between v1 and v2 to get the AID verification and
prefer the new attribute over the old one.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Git-commit: 3d124ea27ae2fc895f81725f0b4c7f3d9c733df4
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git
Change-Id: I72b465fff381f7c3f6faa3731a5c43375887077c
CRs-fixed: 483290
Signed-off-by: Sunil Dutt <duttus@codeaurora.org>
cfg80211: Reset beacon interval when stop AP fails

When SSR happens at WLAN driver, the cfg80211 stop AP can fail at driver.
Make sure that the beacon interval is reset, even when this API fails.

Change-Id: I459f55ce5f4bc44c4d0e20170bd50a83c2d609b4
Signed-off-by: Sameer Thalappil <sameert@codeaurora.org>
cfg80211: pass DFS region to drivers through reg_notifier()

This grants drivers access to the DFS region that a
regulatory domain belongs to.

Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
wireless: add VHT (802.11ac) definitions

Add the VHT definitions to be used by drivers supporting it.

Change-Id: Ia301cf72940cef19767f4f485a09c9afc12ae514
CRs-fixed: 452921

Signed-off-by: Mahesh Palivela <maheshp@posedge.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>