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* cfg80211: fix wext-compat for getting retry valueUjjal Roy2014-01-061-2/+2
| | | | | | | | | | | | | | | While getting the retry limit, wext-compat returns the value without updating the flag for retry->flags is 0. Also in this case, it updates long retry flag when short and long retry value are unequal. So, iwconfig never showing "Retry short limit" and showing "Retry long limit" when both values are unequal. Updated the flags and corrected the condition properly. Signed-off-by: Ujjal Roy <royujjal@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: enable WME for peer mesh STAChun-Yeow Yeoh2014-01-061-0/+1
| | | | | | | | Enable the WME for peer mesh STA so that the driver, such as wcn36xx, will pick this up and enabling it in HW. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: fix memory leak in register_hw() error pathJohannes Berg2014-01-061-11/+11
| | | | | | | | | Move the internal scan request allocation below the last sanity check in ieee80211_register_hw() to avoid leaking memory if the sanity check actually triggers. Reported-by: ZHAO Gang <gamerh2o@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: handle station TX latency allocation errorsJohannes Berg2014-01-061-30/+40
| | | | | | | | | | | | When the station's TX latency data structures need to be allocated, handle failures properly and also free all the structures if there are any other problems. Move the allocation code up so that allocation failures don't trigger rate control algorithm calls. Reported-by: ZHAO Gang <gamerh2o@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: clean up netdev debugfs macros a bitJohannes Berg2014-01-061-27/+33
| | | | | | | | Clean up the file macros a bit and use that to remove the unnecessary format function for the tkip MIC test file that really is write-only. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* nl80211: move vendor/testmode event skb functions out of ifdefJohannes Berg2014-01-061-49/+49
| | | | | | | | The vendor/testmode event skb functions are needed outside the ifdef for vendor-specific events, so move them out. Reported-by: Jouni Malinen <j@w1.fi> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add tracing for ieee80211_sta_set_bufferedJohannes Berg2014-01-062-0/+29
| | | | | | | | This is useful for debugging issues with drivers using this function (erroneously), so add tracing for the API call. Change-Id: Ice9d7eabb8fecbac188f0a741920d3488de700ec Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211/mac80211: correct qos-map lockingJohannes Berg2013-12-302-1/+3
| | | | | | | | Since the RTNL can't always be held, use wdev/sdata locking for the qos-map dereference in mac80211. This requires cfg80211 to consistently lock it, which it was missing in one place. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: Add support for QoS mappingKyeyoon Park2013-12-193-1/+38
| | | | | | | | | Implement set_qos_map() handler for mac80211 to enable QoS mapping functionality. Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com> Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: Add support for QoS mappingKyeyoon Park2013-12-1913-5/+210
| | | | | | | | | | | | | | | | | This allows QoS mapping from external networks to be implemented as defined in IEEE Std 802.11-2012, 10.24.9. APs can use this to advertise DSCP ranges and exceptions for mapping frames to a specific UP over Wi-Fi. The payload of the QoS Map Set element (IEEE Std 802.11-2012, 8.4.2.97) is sent to the driver through the new NL80211_ATTR_QOS_MAP attribute to configure the local behavior either on the AP (based on local configuration) or on a station (based on information received from the AP). Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com> Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* nl80211: support vendor-specific eventsJohannes Berg2013-12-193-23/+143
| | | | | | | | | | In addition to vendor-specific commands, also support vendor-specific events. These must be registered with cfg80211 before they can be used. They're also advertised in nl80211 in the wiphy information so that userspace knows can be expected. The events themselves are sent on a new multicast group called "vendor". Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add helper functions for tracking P2P NoA stateFelix Fietkau2013-12-192-0/+187
| | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: fix iflist_mtx/mtx locking in radar detectionJohannes Berg2013-12-196-20/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The scan code creates an iflist_mtx -> mtx locking dependency, and a few other places, notably radar detection, were creating the opposite dependency, causing lockdep to complain. As scan and radar detection are mutually exclusive, the deadlock can't really happen in practice, but it's still bad form. A similar issue exists in the monitor mode code, but this is only used by channel-context drivers right now and those have to have hardware scan, so that also can't happen. Still, fix these issues by making some of the channel context code require the mtx to be held rather than acquiring it, thus allowing the monitor/radar callers to keep the iflist_mtx->mtx lock ordering. While at it, also fix access to the local->scanning variable in the radar code, and document that radar_detect_enabled is now properly protected by the mtx. All this would now introduce an ABBA deadlock between the DFS work cancelling and local->mtx, so change the locking there a bit to not need to use cancel_delayed_work_sync() but be able to just use cancel_delayed_work(). The work is also safely stopped/removed when the interface is stopped, so no extra changes are needed. Reported-by: Kalle Valo <kvalo@qca.qualcomm.com> Tested-by: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: remove unnecessary iflist_mtx lockingJohannes Berg2013-12-192-4/+0
| | | | | | | | | | | | | | The radar detection code changed a few times, and due to the changes some iflist_mtx locking stayed in that isn't actually necessary - remove it. One version of the code needed it because an AP interface's VLAN list was changed to use this, but then we moved the list handling outside of the chanctx handling and thus the locking was no longer needed. Tested-by: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: align struct ps_data.tim to unsigned longJoe Perches2013-12-191-1/+2
| | | | | | | | Its address is used as an unsigned long *, so make sure that the tim u8 array is properly aligned. Signed-off-by: Joe Perches <joe@perches.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: make ieee80211_recalc_radar_chanctx staticJohannes Berg2013-12-182-25/+23
| | | | | | | The function is only used in one file, so move it up a bit to avoid forward declarations and make it static. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: fix checkpatch errorsWeilong Chen2013-12-188-12/+12
| | | | | | | Fix a number of different checkpatch errors. Signed-off-by: Weilong Chen <chenweilong@huawei.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* nl80211: add VHT support for set_bitrate_maskJanusz Dziedzic2013-12-163-6/+99
| | | | | | | | | Add VHT MCS/NSS set support for nl80211_set_tx_bitrate_mask(). This should be used mainly for test purpose, to check different MCS/NSS VHT combinations. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: read station mgmt keys via get_key callMax Stepanov2013-12-161-1/+2
| | | | | | | | Allow to read management keys stored in a station's gtk key array with a get_key function. Signed-off-by: Max Stepanov <Max.Stepanov@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: check pairwise key_idx on get_key callMax Stepanov2013-12-161-2/+2
| | | | | | | | Verify that a pairwise key index value on ieee80211_get_key call doesn't exceed the boundaries of the pairwise key array. Signed-off-by: Max Stepanov <Max.Stepanov@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: align ieee80211_ibss_csa_beacon() with ieee80211_assign_beacon()Luciano Coelho2013-12-161-1/+4
| | | | | | | | | | | | | | The return value of ieee80211_ibss_csa_beacon is not aligned with the return value of ieee80211_assign_beacon(). For consistency and to be able to use both functions with similar code, change ieee80211_ibss_csa_beacon() not to send the bss changed notification itself, but return what has changed so the caller can send the notification instead. Tested by: Simon Wunderlich <sw@simonwunderlich.de> Acked by: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: refactor ieee80211_ibss_process_chanswitch()Luciano Coelho2013-12-163-50/+17
| | | | | | | | | | Refactor ieee80211_ibss_process_chanswitch() to use ieee80211_channel_switch() and avoid code duplication. Tested by: Simon Wunderlich <sw@simonwunderlich.de> Acked by: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: update adjusting TBTT bit in beaconThomas Pedersen2013-12-164-4/+22
| | | | | | | | | | | | | | | | | | | | | This regression was introduced in "mac80211: cache mesh beacon". mesh_sync_offset_adjust_tbtt() was assuming that the beacon would be rebuilt in every single pre-tbtt interrupt, but now the beacon update happens on the workqueue, and it must be ready for immediate delivery to the driver. Save a pointer to the meshconf IE in the beacon_data (this works because both the IE pointer and beacon buffer are protected by the same rcu_{dereference,assign_pointer}()) for quick updates during pre-tbtt. This is faster and a little prettier than iterating over the elements to find the meshconf IE every time. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: reschedule sched scan after HW restartDavid Spinadel2013-12-164-20/+68
| | | | | | | | | | Keep the sched scan req when starting sched scan, and reschedule it in case of HW restart during sched scan. The upper layer don't have to know about the restart. Signed-off-by: David Spinadel <david.spinadel@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: make ieee80211_assign_beacon() staticLuciano Coelho2013-12-162-4/+2
| | | | | | | | | This function is not used anywhere else than in cfg.c, so there's no need to export it. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: lock sdata in ieee80211_csa_connection_drop_work()Luciano Coelho2013-12-161-0/+4
| | | | | | | | | We call ieee80211_ibss_disconnect(), which requires sdata to be locked, so lock the sdata during ieee80211_csa_connection_drop_work(). Cc: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: let the driver reserve extra tailroom in beaconsFelix Fietkau2013-12-162-3/+10
| | | | | | | | Can be used to add extra IEs (such as P2P NoA) without having to reallocate the buffer. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: free all AP/VLAN keys at onceJohannes Berg2013-12-164-28/+43
| | | | | | | | | | When the AP interface is stopped, free all AP and VLAN keys at once to only require synchronize_net() once. Since that does synchronize_net(), also move two such calls into the function (using the new force_synchronize parameter) to avoid doing it twice. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: optimise mixed AP/VLAN station removalJohannes Berg2013-12-163-6/+14
| | | | | | | | | | | Teach sta_info_flush() to optionally also remove stations from all VLANs associated with an AP interface to optimise the station removal (in particular, synchronize_net().) To not have to add the vlans argument throughout, do some refactoring. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: optimise synchronize_net() for sta_info_flushJohannes Berg2013-12-162-4/+41
| | | | | | | | | | | There's no reason to have one synchronize_net() for each removed station, refactor the code slightly to have just a single synchronize_net() for all stations. Note that this is currently useless as hostapd removes stations one by one and this coalescing never happens. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: move synchronize_net() before sta key removalJohannes Berg2013-12-162-14/+5
| | | | | | | | | | | | There's no reason to do this inside the sta key removal since the keys can only be reached through the sta (and not by the driver at all) so once the sta can no longer be reached, the keys are safe. This will allow further optimisation opportunities with multiple stations. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: don't delay station destructionJohannes Berg2013-12-167-119/+12
| | | | | | | | | | | | If we can assume that stations are never referenced by the driver after sta_state returns (and this is true since the previous iwlmvm patch and for all other drivers) then we don't need to delay station destruction, and don't need to play tricks with rcu_barrier() etc. This should speed up some scenarios like hostapd shutdown. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: move 4-addr sta pointer clearing before synchronize_rcu()Johannes Berg2013-12-161-3/+4
| | | | | | | | | | | | | The pointer should be cleared before synchronize_rcu() so that the consequently dead station won't be found by any lookups in the TX or RX paths. Also check that the station is actually the one being removed, the check is not needed because each 4-addr VLAN can only have a single station and non-4-addr VLANs always have a NULL pointer there, but the code is clearer this way (and we avoid the memory write.) Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* iwlwifi: mvm: use pre-RCU-sync sta removal operationJohannes Berg2013-12-163-7/+40
| | | | | | | | | | | | | | | | | iwlmvm relies on the current mac80211 behaviour of allowing station pointers to be valid for an RCU grace period after returning from the sta_state() callback. To optimise these cases, this behaviour is going away, so make the driver use the new sta_pre_rcu_remove() method to clear the pointer in the fw_id_to_mac_id[] array. Since this may happen while the station is still present in the firmware, don't set the pointer to NULL but to -ENOENT to mark this particular case. In client mode, the station is kept even longer (until marking the MAC as unassociated) so the drain flow must take this new behavior into account. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add pre-RCU-sync sta removal driver operationJohannes Berg2013-12-164-21/+52
| | | | | | | | | | | | | | | | | | | | | | | Currently, mac80211 allows drivers to keep RCU-protected station references that are cleared when the station is removed from the driver and consequently needs to synchronize twice, once before removing the station from the driver (so it can guarantee that the station is no longer used in TX towards the driver) and once after the station is removed from the driver. Add a new pre-RCU-synchronisation station removal operation to the API to allow drivers to clear/invalidate their RCU-protected station pointers before the RCU synchronisation. This will allow removing the second synchronisation by changing the driver API so that the driver may no longer assume a valid RCU-protected pointer after sta_remove/sta_state returns. The alternative to this would be to synchronize_rcu() in all the drivers that currently rely on this behaviour (only iwlmvm) but that would defeat the purpose. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* Merge remote-tracking branch 'wireless-next/master' into mac80211-nextJohannes Berg2013-12-169168-218889/+384293
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| * ath9k: initialize retry chain flags in tx99 codeLorenzo Bianconi2013-12-111-1/+9
| | | | | | | | | | | | | | | | Initialize first chain flags in ath9k_build_tx99_skb() according to configured channel mode and channel width Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * MAINTAINERS: remove myself as maintainer of TI WiLink driversLuciano Coelho2013-12-111-2/+1
| | | | | | | | | | | | | | | | I don't have the time to maintain the TI WiLink WLAN drivers anymore. Remove my name and mark them as Orphan. Signed-off-by: Luciano Coelho <luca@coelho.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * ath5k: Reset Tx interrupt bits also on PISRNick Kossifidis2013-12-111-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | Some cards don't update the PISR properly when all SISR bits for Tx interrupts are being cleared and as a result we get interrupt storm. Since we handle all tx queues all together (so we don't really use the SISR bits to do per-queue interrupt handling), we can manualy update PISR by doing a write-to-clear on its Tx interrupt bits. Signed-off-by: Nick Kossifidis <mickflemm@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * nfc: Fix FSF address in file headersJeff Kirsher2013-12-1134-95/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: linux-wireless@vger.kernel.org CC: Lauro Ramos Venancio <lauro.venancio@openbossa.org> CC: Aloisio Almeida Jr <aloisio.almeida@openbossa.org> CC: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * rfkill: Fix FSF address in file headersJeff Kirsher2013-12-111-3/+1
| | | | | | | | | | | | | | | | | | | | | | Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: linux-wireless@vger.kernel.org Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * drivers/net/wireless: Fix FSF address in file headersJeff Kirsher2013-12-118-19/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: linux-wireless@vger.kernel.org CC: Simon Kelley <simon@thekelleys.org.uk> CC: Christian Lamparter <chunkeey@googlemail.com> CC: Jussi Kivilinna <jussi.kivilinna@iki.fi> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * prism54: Fix FSF address in file headersJeff Kirsher2013-12-1115-30/+15
| | | | | | | | | | | | | | | | | | | | | | | | Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: linux-wireless@vger.kernel.org CC: "Luis R. Rodriguez" <mcgrof@gmail.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * rt2x00: Fix FSF address in file headersJeff Kirsher2013-12-1144-132/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: linux-wireless@vger.kernel.org CC: Ivo van Doorn <IvDoorn@gmail.com> CC: Gertjan van Wingerde <gwingerde@gmail.com> CC: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * zd1211rw: Fix FSF address in file headersJeff Kirsher2013-12-1113-26/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: linux-wireless@vger.kernel.org CC: Daniel Drake <dsd@gentoo.org> CC: Ulrich Kunitz <kune@deine-taler.de> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * Merge branch 'for-upstream' of ↵John W. Linville2013-12-1110-73/+937
| |\ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
| | * Bluetooth: Fix handling of L2CAP Command Reject over LEJohan Hedberg2013-12-101-0/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we receive an L2CAP command reject message over LE we should take appropriate action on the corresponding channel. This is particularly important when trying to interact with a remote pre-4.1 system using LE CoC signaling messages. If we don't react to the command reject the corresponding socket would not be notified until a connection timeout occurs. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| | * Bluetooth: Use macros for connectionless slave broadcast featuresMarcel Holtmann2013-12-093-3/+15
| | | | | | | | | | | | | | | | | | | | | | | | Add the LMP feature constants for connectionless slave broadcast and use them for capability testing. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
| | * Bluetooth: Increase minor version of core moduleMarcel Holtmann2013-12-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the addition of L2CAP Connection Oriented Channels for Bluetooth Low Energy connections, it makes sense to increase the minor version of the Bluetooth core module. The module version is not used anywhere, but it gives a nice extra hint for debugging purposes. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
| | * Bluetooth: Fix valid LE PSM checkJohan Hedberg2013-12-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | The range of valid LE PSMs is 0x0001-0x00ff so the check should be for "less than or equal to" instead of "less than". Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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