Arend van Spriel [Thu, 20 Nov 2014 21:26:59 +0000 (22:26 +0100)]
brcmfmac: fix static checker warning in pmklist handling
The patch fixes a static checker warning:
drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c:2965
brcmf_cfg80211_set_pmksa()
warn: can 'pmkid_len' be negative?
The answer to the question above is likely no so changing its
type to unsigned is sufficient.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
John W. Linville [Mon, 24 Nov 2014 18:59:37 +0000 (13:59 -0500)]
Merge tag 'iwlwifi-next-for-john-2014-11-24' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
Emmanuel Grumbach <egrumbach@gmail.com> says:
"Major works are CSA and TDLS. On top of that I have a new
firmware API for scan and a few rate control improvements.
Johannes find a few tricks to improve our CPU utilization
and adds support for a new spin of 7265 called 7265D.
Along with this a few random things that don't stand out."
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Eyal Shapira [Tue, 18 Nov 2014 14:43:55 +0000 (16:43 +0200)]
iwlwifi: mvm: declare support for VHT BF info in radiotap
The driver knows whether an rx frame was beamformed and marks
it in the radiotap VHT flags. However it should also declare
that it knows to extract this info otherwise this gets discarded
by sniffers like Wireshark.
Luciano Coelho [Thu, 20 Nov 2014 06:59:51 +0000 (08:59 +0200)]
iwlwifi: mvm: treat netdetect wake up separately
When the device wakes up due to netdetect, we need to query different
things from the firmware than when it wakes up with a normal WoWLAN.
To make this easier, separate the netdetect wake up handling from the
rest. For now, we don't send netdetect as a wake up reason, treating
it as a non-wireless wake up.
Refactor the iwl_mvm_query_wakeup_reasons() function to split the part
that gets the firmware status from the part that sets up the WoWLAN
status. This will allow netdetect to reuse the code.
Luciano Coelho [Wed, 19 Nov 2014 20:35:37 +0000 (22:35 +0200)]
iwlwifi: mvm: refactor wowlan and netdetect configuration when suspending
We need to send a WOWLAN_CONFIGURATION command also for netdetect and
configure the rfkill release trigger if needed. To do so, refactor
the code that configures wowlan and netdetect when suspending and send
the WOWLAN_CONFIGURATION command also for net_detect.
Luciano Coelho [Fri, 24 Oct 2014 07:39:51 +0000 (10:39 +0300)]
iwlwifi: mvm: add support for net detect
Add the net detect WoWLAN flag to indicate support and use the
nd_config from the WoWLAN configuration to start net detect, if it is
set. The WoWLAN configuration takes precedence over the debugfs
configuration.
Luciano Coelho [Mon, 10 Nov 2014 09:10:21 +0000 (11:10 +0200)]
iwlwifi: mvm: protect session during CSA
When another vif is also running during a channel switch, we need to
use a session protection when we move to the new channel, so that we
don't miss the beacons. Without this, sometimes the other vif
repeatedly gets time exactly when we should be hearing the beacons,
preventing channel switch from completing. Adding a session
protection that lasts from the moment the channel changes until 2
TBTTs later, ensures that we will hear the beacons on the destination
channel.
Luciano Coelho [Mon, 10 Nov 2014 09:10:20 +0000 (11:10 +0200)]
iwlwifi: mvm: clear TE data if CSA time event fails to start
If setting the CSA time event fails, we must clear the TE data,
otherwise we'll try to remove it when, for instance, a disconnection
occurs, causing a SYSASSERT.
Luciano Coelho [Mon, 10 Nov 2014 09:10:18 +0000 (11:10 +0200)]
iwlwifi: mvm: disable beacon filtering during CSA
After a channel switch, transmission on the new channel is only
started once we see a beacon on it. Thus, beacon filtering needs to
be disabled during channel switch so that mac80211 receives this
beacon and finishes the process.
Luciano Coelho [Mon, 10 Nov 2014 09:10:17 +0000 (11:10 +0200)]
iwlwifi: mvm: add a channel_switch op to bypass mac80211 timer
We need to call ieee80211_chswitch_done() ourselves just when the
absence TE started, so we perform the actual context switch early
enough. To do so, add a dummy channel_switch op, which will cause
mac80211 to skip the countdown timer and allow us to call
ieee80211_chswitch_done() to complete the operation.
Luciano Coelho [Mon, 10 Nov 2014 09:10:16 +0000 (11:10 +0200)]
iwlwifi: mvm: finalize on post_switch instead of unassign
Now that mac80211 waits for the first beacon on the new channel before
calling post_channel_switch, the reconfiguration of the firmware
should be done in the post_channel_switch operation instead of when
assigning the vif to the new context.
Luciano Coelho [Mon, 10 Nov 2014 09:10:15 +0000 (11:10 +0200)]
iwlwifi: mvm: schedule CSA time event a bit before beacon 1
Instead of using a hardcoded number of TUs before beacon 0 as the time
to start the absence and actual channel switch, calculate it in
relation to the beacon interval. We use 10 TUs + beacon interval
before beacon 0 to target a bit before beacon 1. This gives us enough
time to switch to the new channel before the AP/GO switches.
Luciano Coelho [Mon, 10 Nov 2014 09:10:14 +0000 (11:10 +0200)]
iwlwifi: mvm: add CSA absent time event for clients
Add an absent time event when pre_channel_switch is called and use the
time event started indication to set the disable_tx bit instead of
doing it in unassign_vif(). This is done so that the firmware queues
are stopped before the actual switch takes place to avoid losing
packets while the AP/GO is performing its actual switch.
Luciano Coelho [Mon, 10 Nov 2014 09:10:13 +0000 (11:10 +0200)]
iwlwifi: mvm: use switching_chanctx argument instead of csa_active
Now that all CSA flows are using the switch_vif_chanctx op, we can
rely on the switching_chanctx boolean that is passed to the
__iwl_mvm_assign_vif_chanctx() and __iwl_mvm_unassign_vif_chanctx()
functions to decide whether the context switch flows need to be
executed. In this way we make the chanctx switch flow more generic,
without having to rely on the csa_active flag being set.
iwlwifi: mvm: Handle failed beacon transmissions during CSA
The spec requires to decrement the CSA counters based on TBTT,
regardless if the beacon was actually transmitted. Previously, the fw
would send beacon notifications only for successfully transmitted
beacons. This behavior resulted in inaccurate CSA countdown. In order
to address this issue, the fw was changed to send beacon
notifications also for not transmitted beacons. Such notifications
have TX_STATUS_INTERNAL_ABORT (0x92).
Don't start the CSA countdown before first successfully transmitted
beacon, in order to guarantee that the CSA is announced for a
required period.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Luciano Coelho [Mon, 10 Nov 2014 09:10:10 +0000 (11:10 +0200)]
iwlwifi: mvm: return the actual error code when switch_vif_chanctx fails
We have code to recover and go back to the original channel context if
something fails in the middle of switch_vif_chanctx, but we return the
error code of the recover calls instead of the original code, so if
the recovery succeeds, we will return 0 (success). Fix this by not
assigning the return value of the recovery calls to ret.
Luciano Coelho [Mon, 10 Nov 2014 09:10:09 +0000 (11:10 +0200)]
iwlwifi: mvm: add support for CHANCTX_SWMODE_REASSIGN_VIF
Add support to reassign vif in switch_vif_chanctx. This is similar to
the existing CHANCTX_SWMODE_SWAP_CONTEXTS mode, but doesn't delete the
old context nor creates a new one, doing to switch between two
existing contexts.
Luciano Coelho [Mon, 10 Nov 2014 09:10:08 +0000 (11:10 +0200)]
iwlwifi: mvm: refactor iwl_mvm_switch_vif_chanctx to support other modes
Currently we only support the CHANCTX_SWMODE_SWAP_CONTEXTS mode, but
we need to support other modes as well. Spin a new function off in
order to make it easier to support other modes.
Luciano Coelho [Mon, 10 Nov 2014 09:10:07 +0000 (11:10 +0200)]
iwlwifi: mvm: only save csa_vif in AP/GO mode
We only need the csa_vif in AP/GO modes, and assigning for other
interfaces may cause problems, because csa_vif is never cleared. To
prevent this, only assign the value if the iftype is
NL80211_IFTYPE_AP. Use a switch to do this, even though, for now,
only the AP interface type is handled, because soon other interface
types will be added as well.
Additionally, convert the WARN() in the error case when a
channel-switch is already running to WARN_ONCE().
Maintain a TDLS channel-switch state and update it according to
notifications from FW and timeouts. Explicitly check all state
transitions are valid.
When switching is initiated by mac80211, use a delayed work to
periodically reschedule it from iwlwifi.
Give the FW mac80211 generated TDLS channel-switch request/response
templates. It will change appropriate values (switch timings) and Tx
them at appropriate times.
Enable the channel switch wiphy capability bit when the FW supports it.
iwlwifi: mvm: use private TFD queues for TDLS stations
When adding a TDLS station, allocate 4 new queues for it. Configure them
to FW and enable them. On station removal, drain the queues if needed
and disable them when empty.
Make sure to flush all packets in the private queues of TDLS stations in
the mac80211 flush() callback.
When TDLS peers are present the FW will send packets on a dedicated
TID vs. the peer when performing TDLS channel-switches. The driver
configures the TID on connection to the peer and the FW is responsible
for maintaining the state of QoS seqno and PN/IV for encryption.
If the FW asserts, the driver cannot correctly reconfigure the starting
seqno/PN to the reloaded FW, thus forcing us to reconnect the peer.
TDLS stations will have private queues, so consider them as well when
allocating a new one. Consolidate the HW-queue iterating code into
a single exported function, to be used by the TDLS code in the future.
Send a dedicated TDLS_CONFIG command when a TDLS peer joins/leaves. The
fields for the command are mostly place-holders, as most of the FW
functionality is not implemented. In the future the dedicated FW TID
will be used for channel-switching and buffer-sta functionality.
Johannes Berg [Thu, 13 Nov 2014 10:06:43 +0000 (11:06 +0100)]
iwlwifi: mvm: pull SNAP header into skb->head
When we pre-populate the skb->head for the stack, we only pull
in the 802.11 header including crypto (assuming the packet isn't
short enough to be in there completely.) This is fine, but in
ieee80211_data_to_8023() we later unconditionally pull 8 more
bytes for the SNAP header and ethertype field (except for mesh
or 4-addr, where it's even more, but we don't care as much about
them).
Avoid the additional later pull by pulling in those 8 bytes here.
Johannes Berg [Wed, 12 Nov 2014 16:12:05 +0000 (17:12 +0100)]
iwlwifi: mvm: pull crypto header into skb->head
When we pre-populate the skb->head for the stack, we only pull
in the 802.11 header (assuming the packet isn't short enough to
be in there completely.) This is fine, but in many cases we'll
pull in the crypto headers pretty much immediately afterwards,
so to avoid that pull in the crypto header early.
Johannes Berg [Wed, 12 Nov 2014 22:54:48 +0000 (23:54 +0100)]
iwlwifi: mvm: add WEP RX hardware offload support
In the original driver, we decided to not implement WEP RX hardware
offload because of a quirk with the firmware API - it allows setting
global WEP keys that then get used for all virtual interfaces, which
is clearly wrong if more than one exists, and it allows setting per-
station keys but then separates multicast and unicast keys.
In order to implement WEP RX hardware offload, work around these
limitations by uploading each WEP key twice, once as multicast and
once as unicast, but point them both to the same key slot (offset)
and use the same key material so the slot overwrite on the second
upload doesn't actually change anything. Upon removal, also remove
the key twice so the station no longer references it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Matti Gottlieb [Sun, 16 Nov 2014 08:25:12 +0000 (10:25 +0200)]
iwlwifi: mvm: add remove flow for AUX ROC time events
Add a flow that handles the requests to cancel the roc time event,
that has been triggered via the aux framework.
The roc for bss is different than the roc for p2p devices, and is done
via the aux framework using the aux queue, thus requires a different flow
to cancel the time event.
Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Johannes Berg [Tue, 18 Nov 2014 14:39:51 +0000 (15:39 +0100)]
iwlwifi: pcie: support 7265-D devices
Identify 7265-D devices using the hardware revision (they have the
same PCI IDs as 7265) and change the configuration for them taking
the differences (currently only the firmware image) into account.
Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
We were toggling the wrong bit when we reset the device,
fix that. Moreover, since the reset can take time, we need
to wait before we set the rfkill interrupt. Not doing so
can be racy since the driver is enabling the rfkill
interrupt while the device is resetting which will clear
all the registers including the CSR_INT_MASK.
This can basically lead to a situation where we don't
enable the rfkill interrupt. If that happens, the user will
not be able to re-enable the device when de-asserting
rfkill.
This scenario happened to the submitter of:
https://bugzilla.kernel.org/show_bug.cgi?id=87191
Johannes Berg [Tue, 18 Nov 2014 16:21:19 +0000 (17:21 +0100)]
iwlwifi: mvm: support random MAC address for scanning
For background and scheduled scan, using the new unified scan API,
support random MAC address scanning.
Unfortunately, the firmware right now doesn't support randomising
itself, so for now do it on the host - we'll change this once the
firmware supports randomising the address for each scan iteration
using the address/mask.
Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
The TTC and RRC features are supported by the newer
firmwares. It allows to reach better overall WiFi and BT
performance. When the RRC is enabled, we don't need to force
the AP to send SISO frames, but it can keeps sending MIMO
frames.
Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
David Spinadel [Tue, 20 May 2014 09:46:37 +0000 (12:46 +0300)]
iwlwifi: mvm: implement UMAC scan API
This API uses second CPU scan commands, and can support multiple
simultaneous scans.
Adding the new API, and adding new mechanisms to deal with up to
8 simultaneous scans instead of the old scan status.
New scan API requires scan configuration for default scan parameters,
adding it in _up flow. Also updating scan configuration after updating
valid scan antennas via debugfs.
Signed-off-by: David Spinadel <david.spinadel@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Avri Altman [Tue, 11 Nov 2014 05:29:59 +0000 (07:29 +0200)]
iwlwifi: mvm: Fix the keep_alive calculation
The driver must set the keep alive period regardless of power
management state. The keep alive period must be greater or equal to
both the NIC's maximum sleep period, and the listen interval.
However, we were confusing time units (TU) and msec, so fix that.
Avri Altman [Thu, 2 Oct 2014 17:46:16 +0000 (19:46 +0200)]
iwlwifi: mvm: New skip over dtim policy
Our firmware scheduler suffers from false wake-up on 500 time units.
that is if the dtim interval exceeds 500 time units, the fw wakes up,
understands that the next wake-up event is still ahead, and if this event
is more than 10msec in the future - goes back to sleep, otherwise - stay
awake. For example, say that the beacon interval is 101 and the dtim
period is 5, the dtim interval is 101 x 5 = 505, and we will stay awake
for those extra 5msec.
So on the one hand the dtim interval should be congruent to the beacon
interval times the dtim period, and on the other should minimize
the false wake-ups event.
This change applies only to D0/D3 power modes.
After the corresponding mac80211 patch, we can now report the airtime
used for each transmitted packet and mac80211 will be able to implement
WMM-AC with that information.
To support WMM-AC in the driver then, report the airtime and advertise
support.
Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Eran Harary [Tue, 30 Sep 2014 04:42:06 +0000 (06:42 +0200)]
iwlwifi: change max HT and VHT A-MPDU exponent
Add two new parameters to iwl_cfg:
max_ht_ampdu_exponent and max_vht_ampdu_exponent.
These parameters, if set, will set new values to the maximum of
HT and VHT A-MPDU exponent for the A-MPDU length exponent.
Signed-off-by: Eran Harary <eran.harary@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwlwifi: mvm: Insert DS Parameter Set placeholder in probes
Since it's too complicated for the fw to insert a DS Parameter Set
element in the middle of the frame, it was decided that it should be
done by the host. The fw will only parse the frame and update the
current channel field.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Kristian Evensen [Thu, 20 Nov 2014 15:52:58 +0000 (16:52 +0100)]
mwifiex: Add USB8766 support
Adds new VID/PID for the Marvell 88W8766. The kernel currently only supports
the device as PCI, but it is also available using USB. An example of a device
delivered with the 88W8766 as USB is the Globalscale Mirabox.
TX buffer size is set to driver default (2K), as we do not know the firmware
requirement.
Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Markus Elfring [Thu, 20 Nov 2014 15:42:51 +0000 (16:42 +0100)]
net: brcm80211: Deletion of unnecessary checks before two function calls
The functions brcmu_pkt_buf_free_skb() and release_firmware() test whether
their argument is NULL and then return immediately. Thus the test around
the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
John W. Linville [Thu, 20 Nov 2014 21:09:30 +0000 (16:09 -0500)]
Merge tag 'mac80211-next-for-john-2014-11-20' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg <johannes@sipsolutions.net> says:
"It has been a while since my last pull request, so we accumulated
another relatively large set of changes:
* TDLS off-channel support set from Arik/Liad, with some support
patches I did
* custom regulatory fixes from Arik
* minstrel VHT fix (and a small optimisation) from Felix
* add back radiotap vendor namespace support (myself)
* random MAC address scanning for cfg80211/mac80211/hwsim (myself)
* CSA improvements (Luca)
* WoWLAN Net Detect (wake on network found) support (Luca)
* and lots of other smaller changes from many people"
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Tue, 18 Nov 2014 23:10:42 +0000 (00:10 +0100)]
mac80211: notify drivers on sta rate table changes
This allows drivers with a firmware or chip-based rate lookup table to
use the most recent default rate selection without having to get it from
per-packet data or explicit ieee80211_get_tx_rate calls
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Tomasz Bursztyka [Wed, 12 Nov 2014 14:26:45 +0000 (16:26 +0200)]
nl80211: Broadcast CMD_NEW_INTERFACE and CMD_DEL_INTERFACE
Let the other listeners being notified when a new or del interface
command has been issued, thus reducing later necessary request to be in
sync with current context.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Patrik Flykt [Wed, 12 Nov 2014 14:42:40 +0000 (16:42 +0200)]
mac80211-hwsim: Add HWSIM_CMD_GET_RADIO command
HWSIM_CMD_GET_RADIO returns information about a specific radio id or
all of them in response to a dump. Create the netlink skb or use the
one provided by the dump functionality. Use the existing attribute
appending function to fill in the same attributes when creating a
new hwsim radio.
Save alpha2 and struct ieee80211_regdomain in the hwsim data or else
they will be lost in the depths of regulatory infrastructure.
Signed-off-by: Patrik Flykt <patrik.flykt@linux.intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Jukka Rissanen [Thu, 13 Nov 2014 15:25:14 +0000 (17:25 +0200)]
nl80211: Replace interface socket owner attribute with more generic one
Replace NL80211_ATTR_IFACE_SOCKET_OWNER attribute with more generic
NL80211_ATTR_SOCKET_OWNER that can be used with other commands
that interface creation.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 19 Nov 2014 17:51:55 +0000 (18:51 +0100)]
mac80211-hwsim: remove unnecessary hwname check
The hwname will always be set if idx is negative (as it's
a u32 read into an s64 it can't overflow either) so we can
remove the unnecessary check for hwname being non-NULL.
This was reported by smatch.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Rafał Miłecki [Fri, 14 Nov 2014 17:43:28 +0000 (18:43 +0100)]
cfg80211: protect fools returning NULL in add_virtual_intf
Callback add_virtual_intf is supposed to return ERR_PTR and trying to
return NULL results in some "Unable to handle kernel paging request",
etc. As it may be complicated to debug & trace, let's catch it (WARN).
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Arik Nemtsov [Sun, 16 Nov 2014 14:37:47 +0000 (16:37 +0200)]
cfg80211: explicitly initialize some fields in custom reg path
Explicitly initialize the DFS state and beacon found state when handling
channels in the custom regulatory path.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Acked-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Arik Nemtsov [Sun, 16 Nov 2014 14:37:46 +0000 (16:37 +0200)]
cfg80211: update missing fields in custom regulatory path
Some channels fields were not being updated in the custom regulatory
path. Update them according to the code in handle_channel().
Signed-off-by: Jonathan Doron <jonathanx.doron@intel.com> Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Acked-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Felix Fietkau [Sat, 15 Nov 2014 02:48:54 +0000 (03:48 +0100)]
mac80211: skip legacy rate mask handling for VHT rates
The rate mask code currently assumes that a rate is legacy if
IEEE80211_TX_RC_MCS is not set. This might be the cause of bogus VHT
rates being reported with minstrel_ht.
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 12 Jun 2014 20:24:31 +0000 (22:24 +0200)]
mac80211: allow drivers to support NL80211_SCAN_FLAG_RANDOM_ADDR
Allow drivers to support NL80211_SCAN_FLAG_RANDOM_ADDR with software
based scanning and generate a random MAC address for them for every
scan request with the flag.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 12 Jun 2014 19:39:05 +0000 (21:39 +0200)]
cfg80211: allow drivers to support random MAC addresses for scan
Add the necessary feature flags and a scan flag to support using
random MAC addresses for scan while unassociated.
The configuration for this supports an arbitrary MAC address
value and mask, so that any kind of configuration (e.g. fixed
OUI or full 46-bit random) can be requested. Full 46-bit random
is the default when no other configuration is passed.
Also add a small helper function to use the addr/mask correctly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add a new WoWLAN API to enable net-detect as a wake up trigger.
Net-detect allows the device to scan in the background while the
host is asleep to wake up the host system when a matching network
is found.
Reuse the scheduled scan attributes to specify how the scan is
performed while suspended and the matches that will trigger a
wake event.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Luciano Coelho [Mon, 10 Nov 2014 14:13:46 +0000 (16:13 +0200)]
cfg80211: refactor nl80211_start_sched_scan so it can be reused
For net detect, we will need to reuse most of the scheduled scan
parsing function, but not all, so split out the attributes parsing
part out of the main start sched_scan function.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Liad Kaufman [Wed, 19 Nov 2014 11:47:38 +0000 (13:47 +0200)]
mac80211: synchronously reserve TID per station
In TDLS (e.g., TDLS off-channel) there is a requirement for
some drivers to supply an unused TID between the AP and the
device to the FW, to allow sending PTI requests and to allow
the FW to aggregate on a specific TID for better throughput.
To ensure that the allocated TID is indeed unused, this patch
introduces an API for blocking the driver from TXing on that
TID.
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Arik Nemtsov [Sun, 9 Nov 2014 16:50:20 +0000 (18:50 +0200)]
mac80211: add TDLS channel-switch Rx flow
When receiving a TDLS channel switch request or response, parse the frame
and call a new tdls_recv_channel_switch op in the low level driver with
the parsed data.
Arik Nemtsov [Sun, 9 Nov 2014 16:50:19 +0000 (18:50 +0200)]
mac80211: introduce TDLS channel switch ops
Implement the cfg80211 TDLS channel switch ops and introduce new mac80211
ones for low-level drivers.
Verify low-level driver support for the new ops when using the relevant
wiphy feature bit. Also verify the peer supports channel switching before
passing the command down.
Add a new STA flag to track the off-channel state with the TDLS peer and
make sure to cancel the channel-switch if the peer STA is unexpectedly
removed.
Arik Nemtsov [Wed, 19 Nov 2014 10:54:26 +0000 (12:54 +0200)]
cfg80211: introduce TDLS channel switch commands
Introduce commands to initiate and cancel TDLS channel-switching. Once
TDLS channel-switching is started, the lower level driver is responsible
for continually initiating channel-switch operations and returning to
the base (AP) channel to listen for beacons from time to time.
Upon cancellation of the channel-switch all communication between the
relevant TDLS peers will continue on the base channel.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Arik Nemtsov [Sun, 9 Nov 2014 16:50:16 +0000 (18:50 +0200)]
mac80211: prepare TDLS mgmt code for channel-switch templates
Split the data-generating from the Tx-sending functionality, as we do
not want to send templates to the lower driver. Also add an optional
chandef argument to the data-generating portion. It will be used for
channel-switch templates.
Arik Nemtsov [Sun, 9 Nov 2014 16:50:15 +0000 (18:50 +0200)]
mac80211: track AP and peer STA TDLS chan-switch support
The AP or peer can prohibit TDLS channel switch via a bit in the
extended capabilities IE. Parse the IE and track this bit. Set an
appropriate STA flag if both the AP and peer STA support TDLS
channel-switching.
Add the new STA flag and the missing TDLS_INITIATOR to debugfs.
Arik Nemtsov [Sun, 9 Nov 2014 16:50:12 +0000 (18:50 +0200)]
mac80211: add supported channels IE during TDLS setup
This information element is mandatory in case TDLS channel-switching is to
be supported. The channels given are ones supported and allowed to be
active in the current regulatory setting.
Johannes Berg [Sun, 9 Nov 2014 16:50:11 +0000 (18:50 +0200)]
mac80211: add function to create data frame template including key
For some TDLS channel switch implementations data frames need to be
sent by the firmware based on a template. This template should be
created by mac80211, and thus needs to properly be built from an
802.3 frame into an 802.11 frame. In addition, the device will need
the key information so the select_key handler needs to be run.
However, the driver/device will be responsible for all of the crypto
encapsulation, as the sequence numbers etc. cannot be built by the
host anyway in this case since it's a template to be used multiple
times.
Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
projects / linux-beck.git / log