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* cfg80211: clarify timestamp in cfg80211_inform_bssJohannes Berg2012-03-131-4/+3
| | | | | | | | | | This is intended to be the timestamp sent by the peer in the beacon/probe response, not any form of host timestamp. Clarify the documentation and variable names. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: Add background scan period attribute.Bala Shanmugam2012-03-122-0/+11
| | | | | | | | 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>
* cfg80211: expose cfg80211_calculate_bitrate()Thomas Pedersen2012-03-061-0/+1
| | | | | | Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211/mac80211: report signal strength for mgmt framesJohannes Berg2012-03-063-6/+13
| | | | | | | | | | 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>
* cfg80211: Add an attribute to set inactivity timeout in AP modeVasanthakumar Thiagarajan2012-03-051-0/+8
| | | | | | | | | | | | | | | | This patch adds an attribute, NL80211_ATTR_INACTIVITY_TIMEOUT, to set the inactivity timeout which can be used to remove the station in AP mode. This can be passed in NL80211_CMD_START_AP and used by the drivers which have AP MLME in firmware but don't support get_station() properly. To disable inactivity timer in userspace, wpa_s for example, there is a new flag, NL80211_FEATURE_INACTIVITY_TIMER, in nl80211_feature_flags through which drivers can register their capability to use the inactivity timeout to free the stations. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* {nl,cfg,mac}80211: Implement RSSI threshold for mesh peeringAshok Nagarajan2012-03-052-0/+8
| | | | | | | | | | | | | | Mesh peer links are established only if average rssi of the peer candidate satisfies the threshold. This is not in 802.11s specification but was requested by David Fulgham, an open80211s user. This is a way to avoid marginal peer links with stations that are barely within range. This patch adds a new mesh configuration parameter, mesh_rssi_threshold. This feature is supported only for hardwares that report signal in dBm. Signed-off-by: Ashok Nagarajan <ashok@cozybit.com> Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: remove cookies from callbacksJohannes Berg2012-02-291-3/+3
| | | | | | | | | | In "cfg80211: no cookies in cfg80211_send_XXX()" Holger Schurig removed the cookies in the calls from mac80211 to cfg80211, but the ones in the other direction were left in. Remove them now. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: restructure AP/GO mode APIJohannes Berg2012-02-221-113/+142
| | | | | | | | | | | | | | | | | | | | | | | | The AP/GO mode API isn't very clearly defined, it has "set beacon" and "new beacon" etc. Modify the API to the following: * start AP -- all settings * change beacon -- new beacon data * stop AP -- stop AP mode operation This also reflects in the nl80211 API, rename the commands there correspondingly (but keep the old names for compatibility.) Overall, this makes it much clearer what's going on in the API. Kalle developed the ath6kl changes, I created the rest of the patch. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: off by one in mcs mask handlingDan Carpenter2012-02-061-1/+1
| | | | | | | | "ridx" is used as an index into the mcs_mask[] array which has IEEE80211_HT_MCS_MASK_LEN elements. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211/mac80211: userspace peer authorization in IBSSAntonio Quartulli2012-02-061-8/+12
| | | | | | | | If the IBSS network is RSN-protected, let userspace authorize the stations instead of adding them as AUTHORIZED by default. Signed-off-by: Antonio Quartulli <ordex@autistici.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: export cfg80211_ref_bssJohannes Berg2012-02-062-5/+12
| | | | | | | | | | This is needed by mac80211 to keep a reference to a BSS alive for the auth process. Remove the old version of cfg80211_ref_bss() since it's not actually used. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: stop tracking authenticated stateJohannes Berg2012-02-064-318/+72
| | | | | | | | | | | | | | | | | | | | | | | | | To track authenticated state seems to have been a design mistake in cfg80211. It is possible to have out of band authentication (FT), tracking multiple authentications caused more problems than it ever helped, and the implementation in mac80211 is too complex. Remove all this complexity, and let userspace do whatever it wants to, mac80211 can deal with that just fine. Association is still tracked of course, but authentication no longer is. Local auth state changes are thus no longer of value, so ignore them completely. This will also help implement SAE -- asking the driver to do an authentication is now almost equivalent to sending an authentication frame, with the exception of shared key authentication which is still handled completely. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: add support for mcs masksSimon Wunderlich2012-01-301-1/+60
| | | | | | | | | Allow to set mcs masks through nl80211. We also allow to set MCS rates but no legacy rates (and vice versa). Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* {nl,cfg,mac}80211: Add support of setting non-forwarding entity in MeshChun-Yeow Yeoh2012-01-272-0/+6
| | | | | | | | | A mesh node that joins the mesh network is by default a forwarding entity. This patch allows the mesh node to set as non-forwarding entity. Whenever dot11MeshForwarding is set to 0, the mesh node can prevent itself from forwarding the traffic which is not destined to him. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: fix a few -Wshadow warningsJohannes Berg2012-01-271-5/+3
| | | | | | | | It seems that -Wshadow is no longer default in sparse runs, but let's fix the warnings anyway. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wireless: Save original maximum regulatory transmission power for the ↵Hong Wu2012-01-241-17/+2
| | | | | | | | | | | | | | | | | | | | | | calucation of the local maximum transmit power The local maximum transmit power is the maximum power a wireless device allowed to transmit. If Power Constraint is presented, the local maximum power equals to the maximum allowed power defined in regulatory domain minus power constraint. The maximum transmit power is maximum power a wireless device capable of transmitting, and should be used in Power Capability element (7.3.2.16 IEEE802.11 2007). The transmit power from a wireless device should not greater than the local maximum transmit power. The maximum transmit power was not calculated correctly in the current Linux wireless/mac80211 when Power Constraint is presented. Signed-off-by: Hong Wu <hong.wu@dspg.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: fix old station flags compatibilityJohannes Berg2012-01-111-4/+30
| | | | | | | | | | | | | | | | | My patch to validate station flags broke compatibility with the old station flags setting where all flags are always set at once since it always set the mask as all possible flags which ended up being rejected later in the station add/modify code. Fix by parsing only the current flags in the old flags attribute -- new applications and new flags should use (and will now require) the new flags attribute where the mask is given by the application. Reported-and-tested-by: Thomas Hilber <ath9k-dev@toh.cx> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wireless: Treat IPv6 diffserv the same as IPv4 for 802.11eDave Täht2012-01-041-1/+5
| | | | | | | | | Wireless will select a different hardware queue based on the top 3 bits of the diffserv field, for ipv4. Extend that queue selection mechanism to ipv6, and make the calls orthogonal. Signed-off-by: Dave Täht <dave.taht@bufferbloat.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: relicense reg.c reg.h and genregdb.awk to ISCLuis R. Rodriguez2012-01-044-7/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Following the tradition we have had with ath5k, ath9k, CRDA, wireless-regdb I'd like to license this code under the permissive ISC license for the code sharing purposes with other OSes, it'd sure be nice to help the landscape in this area. Although I am %82.89 owner of the regulatory code I have asked every contributor to the regulatory code and have receieved positive Acked-bys from everyone except two deceased entities: o Frans Pop RIP 2010 [0] - Frans Pop <elendil@planet.nl> - Frans Pop <fjp@debian.org> o Nokia RIP February, 11, 2011 [1], [2] - ext-yuri.ershov@nokia.com - kalle.valo@nokia.com Frans Pop's contribution was a simple patch 55f98938, titled, "wireless: remove trailing space in messages" which just add a \n to some printk lines. I'm going to treat these additions as uncopyrightable. As for the contributions made by employees on behalf of Nokia my contact point was Petri Karhula <petri.karhula@nokia.com> but after one month he noted he had not been able to get traction from the legal department on this request, as such it I proceeded by replacing their contributions in previous patches. The end goal is to help a clean rewrite that starts in userspace that is shared under ISC license which currently is taking place with the regulatory simulator [3]. [0] http://lists.debian.org/debian-devel/2011/12/msg00263.html [1] http://press.nokia.com/2011/02/11/nokia-outlines-new-strategy-introduces-new-leadership-operational-structure/ [2] http://NokiaPlanB.com [3] git://github.com/mcgrof/regsim.git Acked-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Acked-by: Dan Carpenter <error27@gmail.com> Acked-by: Mihai Moldovan <ionic@ionic.de> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Sven Neumann <s.neumann@raumfeld.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Tomas Winkler <tomas.winkler@intel.com> Acked-by: Tony Vroon <tony@linx.net> Acked-by: Pavel Roskin <proski@gnu.org> Acked-by: Bob Copeland <me@bobcopeland.com> Acked-by: Lucas De Marchi <lucas.demarchi@profusion.mobi> Acked-by: Pat Erley <pat-lkml@erley.org> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: John W. Linville <linville@tuxdriver.com> Acked-by: Chris Wright <chrisw@sous-sol.org> Acked-by: Joe Perches <joe@perches.com> Acked-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: John Gordon <john@devicescape.com> Acked-by: Simon Barber <protocolmagic@gmail.com> Acked-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Acked-by: Jiri Benc <jbenc@upir.cz> Acked-by: Bruno Randolf <br1@einfach.org> Acked-by: Scott James Remnant <keybuk@google.com> Acked-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: replace reg.c Nokia commit 269ac5Luis R. Rodriguez2012-01-041-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nokia hasn't gotten back to me in over 1 month for a relicense change request. There are only a few changes that they contributed, so just reverting their changes but replacing with another set. This change replaces this commit: commit 269ac5fd2d75b118d76a2291e28796527db2f3f8 Author: Kalle Valo <kalle.valo@nokia.com> Date: Tue Dec 1 10:47:15 2009 +0200 cfg80211: indent regulatory messages with spaces The regulatory messages in syslog look weird: kernel: cfg80211: Regulatory domain: US kernel: ^I(start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) kernel: ^I(2402000 KHz - 2472000 KHz @ 40000 KHz), (600 mBi, 2700 mBm) kernel: ^I(5170000 KHz - 5190000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) kernel: ^I(5190000 KHz - 5210000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) kernel: ^I(5210000 KHz - 5230000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) kernel: ^I(5230000 KHz - 5330000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) kernel: ^I(5735000 KHz - 5835000 KHz @ 40000 KHz), (600 mBi, 3000 mBm) Indent them with four spaces instead of the tab character to get prettier output. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Cc: Petri Karhula <petri.karhula@nokia.com> Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: replace reg.c Nokia commit c4c32294Luis R. Rodriguez2012-01-041-6/+6
| | | | | | | | | | | | | | | | | | | | | | | Nokia hasn't gotten back to me in over 1 month for a relicense change request. There are only a few changes that they contributed, so just reverting their changes but replacing with another set. This change replaces this commit: commit c4c322941ce0d7e2b7b8794ad70683123d9cb26a Author: Yuri Ershov <ext-yuri.ershov@nokia.com> Date: Tue Jun 29 15:08:08 2010 +0400 cfg80211: Update of regulatory request initiator handling In some cases there could be possible dereferencing freed pointer. The update is intended to avoid this issue. Signed-off-by: Yuri Ershov <ext-yuri.ershov@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Cc: Petri Karhula <petri.karhula@nokia.com> Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wireless: Protect regdomain change by mutexDmitry Shmidt2012-01-041-1/+4
| | | | | Signed-off-by: Dmitry Shmidt <dimitrysh@google.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: Return beacon loss count in stationPaul Stewart2011-12-191-0/+3
| | | | | | | | If station info contains a beacon loss count, return it to userspace. Signed-off-by: Paul Stewart <pstew@chromium.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: Restore orig channel values upon disconnectRajkumar Manoharan2011-12-161-0/+26
| | | | | | | | | | | | | | | | | | | When we restore regulatory settings the world regulatory domain is properly reset on cfg80211 (or user prefered regulatory domain) but we were never setting back channel values for drivers that use WIPHY_FLAG_CUSTOM_REGULATORY. Set these values up again by using the orig_ channel parameters. This fixes restoring custom regulatory settings upon disconnect events. Cc: compat@orbit-lab.org Cc: Paul Stewart <pstew@google.com> Cc: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Cc: Senthilkumar Balasubramanian <senthilb@qca.qualcomm.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: allow following country IE power for custom regdom cardsLuis R. Rodriguez2011-12-161-4/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | By definition WIPHY_FLAG_STRICT_REGULATORY was intended to allow the wiphy to adjust itself to the country IE power information if the card had no regulatory data but we had no way to tell cfg80211 that if the card also had its own custom regulatory domain (these are typically custom world regulatory domains) that we want to follow the country IE's noted values for power for each channel. We add support for this and document it. This is not a critical fix but a performance optimization for cards with custom regulatory domains that associate to an AP with sends out country IEs with a higher EIRP than the one on the custom regulatory domain. In practice the only driver affected right now are the Atheros drivers as they are the only drivers using both WIPHY_FLAG_STRICT_REGULATORY and WIPHY_FLAG_CUSTOM_REGULATORY -- used on cards that have an Atheros world regulatory domain. Cards that have been programmed to follow a country specifically will not follow the country IE power. So although not a stable fix distributions should consider cherry picking this. Cc: compat@orbit-lab.org Cc: Paul Stewart <pstew@google.com> Cc: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Cc: Senthilkumar Balasubramanian <senthilb@qca.qualcomm.com> Reported-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: validate nl80211 station handling betterJohannes Berg2011-12-151-87/+112
| | | | | | | | | | | | | | The nl80211 station handling code is a bit messy and doesn't do a lot of validation. It seems like this could be an issue for drivers that don't use mac80211 to validate everything. As cfg80211 doesn't keep station state, move the validation of allowing supported_rates to change for TDLS only in station mode to mac80211. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: add TDLS peer flag to policyJohannes Berg2011-12-151-0/+1
| | | | | | | | This was evidently missed in the TDLS patch (07ba55d7). Cc: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: accept testmode dump with netdevJohannes Berg2011-12-141-19/+31
| | | | | | | | | | | | | | All nl80211 commands that need only the wiphy still allow identifying it by giving an interface index, except, as Kenny pointed out, the testmode dump support. Fix this by looking up the wiphy via the ifidx in this case as well. Tested-by: Kenny Hsu <kenny.hsu@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: notify core hints that helps to restore regd settingsRajkumar Manoharan2011-12-131-2/+14
| | | | | | | | | | | Regulatory updates set by CORE are ignored for custom regulatory cards. Let us notify the changes to the driver, as some drivers uses core hint to restore its orig_* reg domain setting. Cc: Paul Stewart <pstew@google.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: Fix race in bss timeoutVasanthakumar Thiagarajan2011-12-133-28/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is quite possible to run into a race in bss timeout where the drivers see the bss entry just before notifying cfg80211 of a roaming event but it got timed out by the time rdev->event_work got scehduled from cfg80211_wq. This would result in the following WARN-ON() along with the failure to notify the user space of the roaming. The other situation which is happening with ath6kl that runs into issue is when the driver reports roam to same AP event where the AP bss entry already got expired. To fix this, move cfg80211_get_bss() from __cfg80211_roamed() to cfg80211_roamed(). [158645.538384] WARNING: at net/wireless/sme.c:586 __cfg80211_roamed+0xc2/0x1b1() [158645.538810] Call Trace: [158645.538838] [<c1033527>] warn_slowpath_common+0x65/0x7a [158645.538917] [<c14cfacf>] ? __cfg80211_roamed+0xc2/0x1b1 [158645.538946] [<c103354b>] warn_slowpath_null+0xf/0x13 [158645.539055] [<c14cfacf>] __cfg80211_roamed+0xc2/0x1b1 [158645.539086] [<c14beb5b>] cfg80211_process_rdev_events+0x153/0x1cc [158645.539166] [<c14bd57b>] cfg80211_event_work+0x26/0x36 [158645.539195] [<c10482ae>] process_one_work+0x219/0x38b [158645.539273] [<c14bd555>] ? wiphy_new+0x419/0x419 [158645.539301] [<c10486cb>] worker_thread+0xf6/0x1bf [158645.539379] [<c10485d5>] ? rescuer_thread+0x1b5/0x1b5 [158645.539407] [<c104b3e2>] kthread+0x62/0x67 [158645.539484] [<c104b380>] ? __init_kthread_worker+0x42/0x42 [158645.539514] [<c151309a>] kernel_thread_helper+0x6/0xd Reported-by: Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wireless: disable wext sysfs by defaultJohannes Berg2011-12-071-3/+4
| | | | | | | | | | | | | This code has been on the list to remove for a long time, so disable it by default, add a warning to its Kconfig, and schedule it for removal in 3.5. The only known dependency, hal, has not required it since its 0.5.12 release, which was in early 2009 and hal has since been deprecated completely. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: Parse channel type attribute in an ibss join requestAlexander Simon2011-12-062-7/+37
| | | | | | | | | | | | | | | | | | | | | Prepare cfg80211 for IBSS HT: * extend cfg80211 ibss struct with channel_type * Check if extension channel can be used * Export can_beacon_sec_chan for use in mac80211 (will be called from ibss.c later). Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com> [siwu@hrz.tu-chemnitz.de: Updates] * fix cfg80211_can_beacon_ext_chan comment * remove implicit channel_type enum assumptions * remove radar channel flags check * add HT IBSS feature flag * reword commit message Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge branch 'master' of ↵John W. Linville2011-12-022-16/+36
|\ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless Conflicts: drivers/net/wireless/iwlwifi/iwl-agn.c drivers/net/wireless/libertas/cfg.c
| * cfg80211: amend regulatory NULL dereference fixLuis R. Rodriguez2011-11-301-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Johannes' patch for "cfg80211: fix regulatory NULL dereference" broke user regulaotry hints and it did not address the fact that last_request was left populated even if the previous regulatory hint was stale due to the wiphy disappearing. Fix user reguluatory hints by only bailing out if for those regulatory hints where a request_wiphy is expected. The stale last_request considerations are addressed through the previous fixes on last_request where we reset the last_request to a static world regdom request upon reset_regdomains(). In this case though we further enhance the effect by simply restoring reguluatory settings completely. Cc: stable@vger.kernel.org Cc: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * cfg80211: fix race on init and driver registrationLuis R. Rodriguez2011-11-301-16/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a theoretical race that if hit will trigger a crash. The race is between when we issue the first regulatory hint, regulatory_hint_core(), gets processed by the workqueue and between when the first device gets registered to the wireless core. This is not easy to reproduce but it was easy to do so through the regulatory simulator I have been working on. This is a port of the fix I implemented there [1]. [1] https://github.com/mcgrof/regsim/commit/a246ccf81f059cb662eee288aa13100f631e4cc8 Cc: stable@vger.kernel.org Cc: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * nl80211: fix MAC address validationEliad Peller2011-11-281-2/+2
| | | | | | | | | | | | | | | | | | | | MAC addresses have a fixed length. The current policy allows passing < ETH_ALEN bytes, which might result in reading beyond the buffer. Cc: stable@vger.kernel.org Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * cfg80211: fix regulatory NULL dereferenceJohannes Berg2011-11-211-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | By the time userspace returns with a response to the regulatory domain request, the wiphy causing the request might have gone away. If this is so, reject the update but mark the request as having been processed anyway. Cc: Luis R. Rodriguez <lrodriguez@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Cc: stable@vger.kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * cfg80211: fix bug on regulatory core exit on access to last_requestLuis R. Rodriguez2011-11-091-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 4d9d88d1 by Scott James Remnant <keybuk@google.com> added the .uevent() callback for the regulatory device used during the platform device registration. The change was done to account for queuing up udev change requests through udevadm triggers. The change also meant that upon regulatory core exit we will now send a uevent() but the uevent() callback, reg_device_uevent(), also accessed last_request. Right before commiting device suicide we free'd last_request but never set it to NULL so platform_device_unregister() would lead to bogus kernel paging request. Fix this and also simply supress uevents right before we commit suicide as they are pointless. This fix is required for kernels >= v2.6.39 $ git describe --contains 4d9d88d1 v2.6.39-rc1~468^2~25^2^2~21 The impact of not having this present is that a bogus paging access may occur (only read) upon cfg80211 unload time. You may also get this BUG complaint below. Although Johannes could not reproduce the issue this fix is theoretically correct. mac80211_hwsim: unregister radios mac80211_hwsim: closing netlink BUG: unable to handle kernel paging request at ffff88001a06b5ab IP: [<ffffffffa030df9a>] reg_device_uevent+0x1a/0x50 [cfg80211] PGD 1836063 PUD 183a063 PMD 1ffcb067 PTE 1a06b160 Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC CPU 0 Modules linked in: cfg80211(-) [last unloaded: mac80211] Pid: 2279, comm: rmmod Tainted: G W 3.1.0-wl+ #663 Bochs Bochs RIP: 0010:[<ffffffffa030df9a>] [<ffffffffa030df9a>] reg_device_uevent+0x1a/0x50 [cfg80211] RSP: 0000:ffff88001c5f9d58 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88001d2eda88 RCX: ffff88001c7468fc RDX: ffff88001a06b5a0 RSI: ffff88001c7467b0 RDI: ffff88001c7467b0 RBP: ffff88001c5f9d58 R08: 000000000000ffff R09: 000000000000ffff R10: 0000000000000000 R11: 0000000000000001 R12: ffff88001c7467b0 R13: ffff88001d2eda78 R14: ffffffff8164a840 R15: 0000000000000001 FS: 00007f8a91d8a6e0(0000) GS:ffff88001fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: ffff88001a06b5ab CR3: 000000001c62e000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process rmmod (pid: 2279, threadinfo ffff88001c5f8000, task ffff88000023c780) Stack: ffff88001c5f9d98 ffffffff812ff7e5 ffffffff8176ab3d ffff88001c7468c2 000000000000ffff ffff88001d2eda88 ffff88001c7467b0 ffff880000114820 ffff88001c5f9e38 ffffffff81241dc7 ffff88001c5f9db8 ffffffff81040189 Call Trace: [<ffffffff812ff7e5>] dev_uevent+0xc5/0x170 [<ffffffff81241dc7>] kobject_uevent_env+0x1f7/0x490 [<ffffffff81040189>] ? sub_preempt_count+0x29/0x60 [<ffffffff814cab1a>] ? _raw_spin_unlock_irqrestore+0x4a/0x90 [<ffffffff81305307>] ? devres_release_all+0x27/0x60 [<ffffffff8124206b>] kobject_uevent+0xb/0x10 [<ffffffff812fee27>] device_del+0x157/0x1b0 [<ffffffff8130377d>] platform_device_del+0x1d/0x90 [<ffffffff81303b76>] platform_device_unregister+0x16/0x30 [<ffffffffa030fffd>] regulatory_exit+0x5d/0x180 [cfg80211] [<ffffffffa032bec3>] cfg80211_exit+0x2b/0x45 [cfg80211] [<ffffffff8109a84c>] sys_delete_module+0x16c/0x220 [<ffffffff8108a23e>] ? trace_hardirqs_on_caller+0x7e/0x120 [<ffffffff814cba02>] system_call_fastpath+0x16/0x1b Code: <all your base are belong to me> RIP [<ffffffffa030df9a>] reg_device_uevent+0x1a/0x50 [cfg80211] RSP <ffff88001c5f9d58> CR2: ffff88001a06b5ab ---[ end trace 147c5099a411e8c0 ]--- Reported-by: Johannes Berg <johannes@sipsolutions.net> Cc: Scott James Remnant <keybuk@google.com> Cc: stable@vger.kernel.org Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | {nl,cfg,mac}80211: implement dot11MeshHWMPperrMinIntervalThomas Pedersen2011-11-282-0/+8
| | | | | | | | | | | | | | | | As per 802.11mb 13.9.11.3 Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | {nl,cfg,mac}80211: Allow Setting Multicast Rate in MeshChun-Yeow Yeoh2011-11-281-0/+5
| | | | | | | | | | | | Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | wireless: Add NoAck per tid supportSimon Wunderlich2011-11-281-0/+28
| | | | | | | | | | | | | | | | This patch contains the configuration changes in nl80211/cfg80211. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'master' of ↵John W. Linville2011-11-2210-0/+11
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux Conflicts: drivers/net/wireless/iwlegacy/iwl-debugfs.c drivers/net/wireless/iwlegacy/iwl-rx.c drivers/net/wireless/iwlegacy/iwl-scan.c drivers/net/wireless/iwlegacy/iwl-tx.c include/net/bluetooth/bluetooth.h
| * | net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modulesPaul Gortmaker2011-10-3110-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | These files are non modular, but need to export symbols using the macros now living in export.h -- call out the include so that things won't break when we remove the implicit presence of module.h from everywhere. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
| * | net: add moduleparam.h for users of module_param/MODULE_PARM_DESCPaul Gortmaker2011-10-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | These files were getting access to these two via the implicit presence of module.h everywhere. They aren't modules, so they don't need the full module.h inclusion though. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* | | cfg80211: work around a sparse issueJohannes Berg2011-11-211-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sparse reports: net/wireless/util.c:499:30: error: cannot size expression net/wireless/util.c:503:30: error: cannot size expression This is evidently due to the EXPORT_SYMBOL() of the bridge_tunnel_header and rfc1042 header variables. Move them to the end of the file to work around the sparse issue. The error itself from sparse can be ignored safely, but since sparse stops parsing at errors, other issues after this would go undetected. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | wireless: Support ht-capabilities over-rides.Ben Greear2011-11-214-7/+91
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows users to disable features such as HT, HT40, and to modify the MCS, AMPDU, and AMSDU settings for drivers that support it. The MCS, AMPDU, and AMSDU features that may be disabled are are reported in the phy-info netlink message as a mask. Attemping to disable features that are not supported will take no affect, but will not return errors. This is to aid backwards compatibility in user-space apps that may not be clever enough to deal with parsing the the capabilities mask. This patch only enables the infrastructure. An additional patch will enable the feature in mac80211. Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | cfg80211/mac80211: Revert "move information element parsing logic to cfg80211"Johannes Berg2011-11-211-168/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No other driver ever ended up using this, and the commit forgot to move the prototype so no driver could have used it. Revert it, if any driver shows up and needs it it can be moved again, but until then it's more efficient to have it in mac80211 where the only user is. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | nl80211: make get_vlan logic more commonJohannes Berg2011-11-211-23/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | get_vlan() sets the output parameter even if it returns an error, which is a bit odd. Instead, convert it to use ERR_PTR. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | cfg80211: add flags for off-channel capabilitiesJohannes Berg2011-11-211-5/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently mac80211 implements these for all devices, but given restrictions of some devices that isn't really true, so prepare for being able to remove the capability for some mac80211 devices. 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>
* | | nl80211: add testmode to the list of supported commandsKalle Valo2011-11-211-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | User space might want to test if driver supports testmode. Adding testmode to the list of supported commands makes this easier. I omitted testmode_dump() in purpose. I assume all drivers implementing testmode_dump() will also implement testmode_cmd(). Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-15 01:11:46 +0000