mac80211: handle TDLS high-level commands and frames

Register and implement the TDLS cfg80211 callback functions.

Internally prepare and send TDLS management frames. We incorporate
local STA capabilities and supported rates with extra IEs given by
usermode. The resulting packet is either encapsulated in a data frame,
or assembled as an action frame. It is transmitted either directly or
through the AP, as mandated by the TDLS specification.

Declare support for the TDLS external setup wiphy capability. This
tells usermode to handle link setup and discovery on its own, and use the
kernel driver for sending TDLS mgmt packets.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

cfg80211: add cfg80211_find_vendor_ie() function

Add function to find vendor-specific ie (along with
vendor-specific ie struct definition and P2P OUI values)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

mac80211: Mesh data frames must have the QoS header

Per sec 7.1.3.5 of draft 12.0 of 802.11s, mesh frames indicate the
presence of the mesh control header in their QoS header.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

mac80211: mesh gate implementation

In this implementation, a mesh gate is a root node with a certain bit
set in its RANN flags. The mpath to this root node is marked as a path
to a gate, and added to our list of known gates for this if_mesh. Once a
path discovery process fails, we forward the unresolved frames to a
known gate. Thanks to Luis Rodriguez for refactoring and bug fix help.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

mac80211: update mesh path selection frame format

Make mesh path selection frames Mesh Action category, remove outdated
Mesh Path Selection category and defines, use updated reason codes, add
mesh_action_is_path_sel for readability, and update/correct path
selection IEs.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

ieee80211: add mesh action codes

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

mac80211: update mesh peering frame format

This patch updates the mesh peering frames to the format specified in
the recently ratified 802.11s standard. Several changes took place to
make this happen:

- Change RX path to handle new self-protected frames
- Add new Peering management IE
- Remove old Peer Link IE
- Remove old plink_action field in ieee80211_mgmt header

These changes by themselves would either break peering, or work by
coincidence, so squash them all into this patch.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

ieee80211: introduce Self Protected Action codes

802.11s introduces a new action frame category, add action codes as well
as an entry in ieee80211_mgmt.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

wireless: Introduce defines for BAR TID_INFO & MULTI_TID fields

While at it also fix the indention of the other IEEE80211_BAR_CTRL_ defines.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

config: fix __enabled_ macros definition for invisible and un-selected symbols

__enabled_<sym-name> are only generated on visible or selected entries, do not
reflect the purpose of its introduction.

Fix this by always generating these entries for named symbol.

Reported-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

config: factor code in menu_get_ext_help()

Cc: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

config: Fix help text not displayed in choice option.

Help text under choice menu is never displayed because it does not have
symbol name associated with it, however many kconfigs have help text
under choice, assuming that it will be displayed when user selects help.
for example in Kconfig if we have:
choice
        prompt "Choice"
        ---help---
           HELP TEXT ...

config A
        bool "A"

config B
        bool "B"

endchoice

Without this patch "HELP TEXT" is not displayed when user selects help
option when "Choice" is highlighted from menuconfig or xconfig or
gconfig.

This patch changes the logic in menu_get_ext_help to display help for
cases which dont have symbol names like choice.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Reviewed-by: Stuart Menefy <stuart.menefy@st.com>
Reviewed-by: Arnaud Lacombe <lacombar@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: remove wol #ifdef leftovers

Thanks to the aggressive cflags, the compiler will
optimize the check away if wol is not enabled.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: toolchain binutils 2.22

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: refactoring wlan_tx_ampdu

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: move wowlan routines into separate files

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firwmare: toolchain gcc 4.6.2

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

config: import latest kconfig

commit 2a11c8ea20bf850b3a2c60db8c2e7497d28aba99
Subject: "kconfig: Introduce IS_ENABLED(), IS_BUILTIN() and IS_MODULE()"

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: add missing out-of-bound check in WoWLAN code

src/wlan.c: In function ‘wlan_rx_wol_probe_ssid’:
src/wlan.c:830:30: error: variable ‘end’ set but not used

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: checkpatch/style fixes

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

ieee80211: add few wmm tspec values

These are needed by ath6kl for parsing tspec status from an IE.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

wireless: unify QoS control field definitions

Move all that mac80211 has into the generic
ieee80211.h header file and use them. At the
same time move them from mask+shift to just
bits and rename them for consistent names.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

cfg80211: don't drop p2p probe responses

Commit 0a35d36 ("cfg80211: Use capability info to detect mesh beacons")
assumed that probe response with both ESS and IBSS bits cleared
means that the frame was sent by a mesh sta.

However, these capabilities are also being used in the p2p_find phase,
and the mesh-validation broke it.

Rename the WLAN_CAPABILITY_IS_MBSS macro, and verify that mesh ies
exist before assuming this frame was sent by a mesh sta.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: install firmware without execute permissions

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: add BCN_HT1 and BCN_HT2 definitions

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: correct use of memset

I noticed something that may be a bug in wlan.c, in
wlan_wol_connection_monitor():

memset(nullf, 0, sizeof(nullf));

Should be:

memset(nullf, 0, sizeof(*nullf));

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: shared register file update

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: fix use of uninitialized value

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: improve site survey data

Luis' automatic channel selection needs tx_time in
order to work. Trouble is, the documentation does
not mention such a counter, so a software solution
is needed.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: drop timer1

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: report device tallies

 - channel active counter
 - main channel clear counter
 - ext channel clear counter

 - rx total counter
 - rx overrun counter

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: update version to 1.9.4

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: use udivsi3 to divide integers

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: remove noisy debug messages

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: enable 5GHZ PSM

The issue with 5GHZ PSM has been identified and fixed in
the previous commit (carl9170 firmware: fix time accouting).

Introduce a new feature flag, so the driver can check
for it.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: fix time accouting

This patch tries to partially fix the old issue with
the inaccurate clocks.

Note: It also adds a Timer1, which goes off every msec
on the clock.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: fix clock_set parameter mixup

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: enable -fmodulo-sched

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

Merge branch 'master' of git://git./linux/kernel/git/chr/carl9170fw

carl9170 firmware: add more compiler flags voodoo

"Link Time Optimization (LTO) gives GCC the capability of
dumping its internal representation (GIMPLE) to disk, so
that all the different compilation units that make up a
single executable can be optimized as a single module.

This expands the scope of inter-procedural optimizations to
encompass the whole program (or, rather, everything that is
visible at link time)."

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firwmare: toolchain gcc 4.6.1 and binutils 2.20.1

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: fixup const volatile register access

Due to heavy usage of all sorts of different optimitations
option, the compiler tries to optimize repeated reads of
const type * away if they are not marked as volatile.
Unfortunately, this breaks the code in several places, as it
causes infinite loops while waiting for hardware to update
BUSY registers.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

Merge git://git./linux/kernel/git/chr/carl9170fw into wol

mac80211: Self-protected management frames are not robust

They may contain encrypted information elements (as AMPE frames do)
but they are not encrypted.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

cfg80211: Use capability info to detect mesh beacons.

Mesh beacons no longer use all-zeroes BSSID.  Beacon frames for MBSS,
infrastructure BSS, or IBSS are differentiated by the Capability
Information field in the Beacon frame.  A mesh STA sets the ESS and IBSS
subfields to 0 in transmitted Beacon or Probe Response management
frames.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

mac80211: Drop MESH_PLINK category and use new ANA-approved MESH_ACTION

Note: This breaks compatibility with previous mesh protocol instances.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: update readme

Add instructions on how to install firmware images.

Reported-by: Marius Ladegaard Meyer <marius.l.meyer@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: add cmake helpers

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: update build system to accommodate for new cmake config

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: replace makefile with cmake

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: initial WoWLAN support

Unlike the previous proof-of-concept implementation, this
one supports nl80211's magic packet & disconnect wakeup
triggers. Furthermore, the trigger can be enabled from
userspace with "iw", so there's no need for a custom
firmware anymore.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: put CAB flush into a sub procedure

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: general purpose desc for internal use

the new fw_desc can be used by any service routine
within the firmware to generate frames within the
firmware.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: remove unnecessary initializations

carl9170 firmware: enable BA REQ responder by default

This feature is mandatory in the 802.11n standard.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 tools: fix error code propagation

eeprom_fix.c: In function ‘get_addr’:
eeprom_fix.c:44:6: warning: variable ‘err’ set but not us

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

ieee80211: add HT extended capabilities masks

IEEE Std 802.11n, Oct. 29, 2009:
7.3.2.56.5 HT Extended Capabilities field

Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firwmare: toolchain gcc 4.4.6

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware build: mkdir include/generated when not present

Quote from Marius L. Meyer:
I discovered what the problem was. The directory include/generated does not
exist and does not get created anywhere in the process. So when
configure/conf tries to rename .tmpconfig.h to include/generated/autoconf.h,
it fails. The problem is solved by simply creating the directory before
running autogen.sh.

Reported-by: Marius Ladegaard Meyer
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: put _start into the .boot section

Without this change, the _start entry is not placed
at the correct position and as a result the firmware
boot fails.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firwmare: toolchain gcc 4.6.0

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: fix gcc-4.6 compiler warnings

include/timer.h:87:20: warning: inlining failed in call to \
‘clock_set’: call is unlikely and code size would grow [-Winline]

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: fix uninitialized txfail variable

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

ieee80211: add IEEE80211_COUNTRY_STRING_LEN definition

Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

Merge carl9170fw

Conflicts:
carlfw/Kconfig
carlfw/include/wl.h
carlfw/src/wlan.c

carl9170 firmware: simplify BACKREQ pool handling

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: more useful tx_queue hw registers names

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: optimize tx_status hot-path

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: drop failed frames faster

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: handle download queue exceptions

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: add option to silence MAC RESET notifications

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: update feature descriptor

 * CARL9170FW_PSM depends on RF

 * bump OTAR header revision

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: rework parts of dma_put & dma_reclaim

Not that it would fix anything.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: reverse QoS queue mapping

This seems to work much better than the mapping
from Atheros original source.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: update version to 1.9.3

carl9170 firmware: remove outdated defconfig

There's no need for it anyway, the "default"
options are already specified by the Kconfig
files.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: merge CARL9170FW_PSM with the standard RF code

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: always enable HW watchdog

Ultimately, this is a mandatory feature and
must be activated.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: integrate TX_AMPDU & DELAYED_TX

This patch fixes a few outstanding issues with the
two options and integrates the features into the
default build.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

Merge git./pub/scm/linux/kernel/git/chr/carl9170fw

carl9170 firmware: fix ProbeReq WOL Kconfig selection

The config option CARL9170FW_WOL_CHECK was renamed
to CARL9170FW_WOL.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

Merge branch 'master' of git://git./linux/kernel/git/chr/carl9170fw

carl9170 firmware: integrate TX_AMPDU & DELAYED_TX

This patch fixes a few outstanding issues with the
two options and integrates the features into the
default build.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

Merge branch 'master' of git://git./linux/kernel/git/chr/carl9170fw

carlu: fix error code propagation

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: update copyright boilerplate

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: various small updates

 * remove outdated Kconfig option

 * fix carlu firmware location

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware build: simplify build process

Several users tried to use the generated carl9170.fw
without applying the firmware descriptor first. This
will obviously not work... Now cmake takes care of
this step as well and I have to say that it now looks
less confusing than before ;).

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carlu: fix hexdump formatting

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

ieee80211: correct IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK macro

It is defined in include/linux/ieee80211.h. As per IEEE spec.
bit6 to bit15 in block ack parameter represents buffer size.
So the bitmask should be 0xFFC0.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Cc: stable@kernel.org
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: Wake-up on rx'ed Probe Request

This option allows the firmware to wakeup the host,
when it receives a probe request for a given SSID.

The advantage of this solution is that it works with
almost all client devices and various operating
systems. No special injection or [unencrypted] network
setup is required, just "active scan".

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: optimize carl9170_tx_superframe access

Setting __aligned allows gcc to produce more compact
binaries.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: fix gcc alignment warnings

warning: cast increases required alignment of target type.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware tools: show number of generated frames

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: per-vif tx sequence counter

mac80211 will properly assign sequence numbers to QoS-data frames
but cannot do so correctly for non-QoS-data and management frames
because beacons need them from that counter as well and mac80211
cannot guarantee proper sequencing.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: reorder SUSPEND/RESUME/WOL paths

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware tools: wol stop after inject error

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware tools: sample WOL packet generator

Generates a MAGIC WOL packet.

- Note -

Monitor interfaces [with injection] can be easily created by "iw".
<http://wireless.kernel.org/en/users/Documentation/iw#Adding_interfaces_with_iw>

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: Wake-on-LAN support

With this feature enabled, the device will stay
active while the host goes into System Standby
[Suspend to RAM!].

Furthermore, it scans all incoming 802.11 data frames
for a MAGIC WOL pattern and - when found - propagates
the wake-up call to the USB Host.

Notes/Limitations:
* Your host has to support USB remote wake-up.
  [In some cases, /proc/acpi/wakeup has to be
   configured as well - see Google for more
   details]

* The MAC address is taken from the device EEPROM.
  [so, ifconfig dev hw ether overrides don't
   work (yet)]

* The magic pattern has to be within the first
  320 bytes of the data frame.

* The magic frames has to be send unencrypted.
  Therefore the WOL initiator has to support
  frame injection [not a problem for most
  mac80211-based drivers].

* The initatior need to be in range and on the
  same channel as well.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

carl9170 firmware: update headers for WOL

This patch adds a few definitions for wake up on LAN.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>