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2011-11-21wireless: Support ht-capabilities over-rides.Ben Greear
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>
2011-11-09cfg80211/mac80211: allow management TX to not wait for ACKJohannes Berg
For probe responses it can be useful to not wait for ACK to avoid retransmissions if the station that sent the probe is already on the next channel, so allow userspace to request not caring about the ACK with a new nl80211 flag. Since mac80211 needs to be updated for the new function prototype anyway implement it right away -- it's just a few lines of code. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-09cfg80211: add event for unexpected 4addr framesJohannes Berg
The frames are used by AP/STA WDS mode, and hostapd needs to know when such a frame was received to set up the VLAN appropriately to allow using it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-09nl80211: allow subscribing to unexpected class3 framesJohannes Berg
To implement AP mode without monitor interfaces we need to be able to send a deauth to stations that send frames without being associated. Enable this by adding a new nl80211 event for such frames that an application can subscribe to. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-27nl80211/cfg80211: Add support to disable CCK rate for management frameRajkumar Manoharan
Add a new nl80211 attribute to specify whether to send the management frames in CCK rate or not. As of now the wpa_supplicant is disabling CCK rate at P2P init itself. So this patch helps to send P2P probe request/probe response/action frames being sent at non CCK rate in 2GHz without disabling 11b rates. This attribute is used with NL80211_CMD_TRIGGER_SCAN and NL80211_CMD_FRAME commands to disable CCK rate for management frame transmission. Cc: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-09-19cfg80211/nl80211: Add PMKSA caching candidate eventJouni Malinen
When the driver (or most likely firmware) decides which AP to use for roaming based on internal scan result processing, user space needs to be notified of PMKSA caching candidates to allow RSN pre-authentication to be used. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-06cfg80211/nl80211: support GTK rekey offloadJohannes Berg
In certain circumstances, like WoWLAN scenarios, devices may implement (partial) GTK rekeying on the device to avoid waking up the host for it. In order to successfully go through GTK rekeying, the KEK, KCK and the replay counter are required. Add API to let the supplicant hand the parameters to the driver which may store it for future GTK rekey operations. Note that, of course, if GTK rekeying is done by the device, the EAP frame must not be passed up to userspace, instead a rekey event needs to be sent to let userspace update its replay counter. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-06-10cfg80211: Ignore downstream DEAUTH for authtry_bssesPaul Stewart
Downsteram DEAUTH messages do not refer to a current authentication attempt -- AUTH responses do. Therefore we should not allow DEAUTH from an AP to void state for an AUTH attempt in progress. Signed-off-by: Paul Stewart <pstew@chromium.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-05-11mac80211: Let userspace send action frames over mesh interfacesJavier Cardona
Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-03-30cfg80211: Add nl80211 event for deletion of a station entryJouni Malinen
Indicate an NL80211_CMD_DEL_STATION event when a station entry in mac80211 is deleted to match with the NL80211_CMD_NEW_STATION event that is used when the entry was added. This is needed, e.g., to allow user space to remove a peer from RSN IBSS Authenticator state machine to avoid re-authentication and re-keying delays when the peer is not reachable anymore. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-16nl80211: Add notification for dropped Deauth/DisassocJouni Malinen
Add a new notification to indicate that a received, unprotected Deauthentication or Disassociation frame was dropped due to management frame protection being in use. This notification is needed to allow user space (e.g., wpa_supplicant) to implement SA Query procedure to recover from association state mismatch between an AP and STA. This is needed to avoid getting stuck in non-working state when MFP (IEEE 802.11w) is used and a protected Deauthentication or Disassociation frame is dropped for any reason. After that, the station would silently discard any unprotected Deauthentication or Disassociation frame that could be indicating that the AP does not have association for the STA (when the Reason Code would be 6 or 7). IEEE Std 802.11w-2009, 11.13 describes this recovery mechanism. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-29nl80211/cfg80211: extend mgmt-tx API for off-channelJohannes Berg
With p2p, it is sometimes necessary to transmit a frame (typically an action frame) on another channel than the current channel. Enable this through the CMD_FRAME API, and allow it to wait for a response. A new command allows that wait to be aborted. However, allow userspace to specify whether or not it wants to allow off-channel TX, it may actually want to use the same channel only. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-24cfg80211: allow using CQM event to notify packet lossJohannes Berg
This adds the ability for drivers to use CQM events to notify about packet loss for specific stations (which could be the AP for the managed mode case). Since the threshold might be determined by the driver (it isn't passed in right now) it will be passed out of the driver to userspace in the event. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-10-13cfg80211: notify drivers about frame registrationsJohannes Berg
Drivers may need to adjust their filters according to frame registrations, so notify them about them. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-10-05cfg80211/mac80211: allow management frame TX in AP modeJohannes Berg
Enable management frame transmission and subscribing to management frames through nl80211 in both cfg80211 and mac80211. Also update a few places that I forgot to update for P2P-client mode previously, and fix a small bug with non-action frames in this API. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-16cfg80211/nl80211: introduce p2p device typesJohannes Berg
This adds P2P-STA and P2P-GO as device types so we can distinguish between those and normal STA or AP (respectively) type interfaces. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-24cfg80211/mac80211: extensible frame processingJohannes Berg
Allow userspace to register for more than just action frames by giving the frame subtype, and make it possible to use this in various modes as well. With some tweaks and some added functionality this will, in the future, also be usable in AP mode and be able to replace the cooked monitor interface currently used in that case. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-16cfg80211: deauth doesn't always imply disconnectJohannes Berg
When an AP sends a deauth frame, or we send one to an AP, that only means we lost our connection if we were actually connected to that AP. Check this to avoid sending spurious "disconnected" events and breaking "iw ... link" reporting. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-09cfg80211: fix locking in action frame TXJohannes Berg
Accesses to "wdev->current_bss" must be locked with the wdev lock, which action frame transmission is missing. Cc: stable@kernel.org [2.6.33+] Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-12cfg80211: ignore spurious deauthJohannes Berg
Ever since mac80211/drivers are no longer fully in charge of keeping track of the auth status, trying to make them do so will fail. Instead of warning and reporting the deauthentication to userspace, cfg80211 must simply ignore it so that spurious deauthentications, e.g. before starting authentication, aren't seen by userspace as actual deauthentications. Cc: stable@kernel.org Reported-by: Paul Stewart <pstew@google.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-14cfg80211/mac80211: allow action frame TX/RX in IBSSJohannes Berg
When in IBSS mode, currently action frame TX and RX cannot be used. Allow using it to talk to any peer, or for public action frames. Also, while at it, restructure the code in mac80211 to make it easier to add this for other interface types in the future. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-02cfg80211: make action channel type optionalJohannes Berg
When sending action frames, we want to verify that we do that on the correct channel. However, checking the channel type in addition can get in the way, since the channel type could change on the fly during an association, and it's not useful to have the channel type anyway since it has no effect on the transmission. Therefore, make it optional to specify so that if wanted, it can still be checked, but is not required. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-15Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: Documentation/feature-removal-schedule.txt drivers/net/wireless/ath/ath5k/phy.c drivers/net/wireless/wl12xx/wl1271_main.c
2010-04-11Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/stmmac/stmmac_main.c drivers/net/wireless/wl12xx/wl1271_cmd.c drivers/net/wireless/wl12xx/wl1271_main.c drivers/net/wireless/wl12xx/wl1271_spi.c net/core/ethtool.c net/mac80211/scan.c
2010-04-07cfg80211: Add local-state-change-only auth/deauth/disassocJouni Malinen
cfg80211 is quite strict on allowing authentication and association commands only in certain states. In order to meet these requirements, user space applications may need to clear authentication or association state in some cases. Currently, this can be done with deauth/disassoc command, but that ends up sending out Deauthentication or Disassociation frame unnecessarily. Add a new nl80211 attribute to allow this sending of the frame be skipped, but with all other deauth/disassoc operations being completed. Similar state change is also needed for IEEE 802.11r FT protocol in the FT-over-DS case which does not use Authentication frame exchange in a transition to another BSS. For this to work with cfg80211, an authentication entry needs to be created for the target BSS without sending out an Authentication frame. The nl80211 authentication command can be used for this purpose, too, with the new attribute to indicate that the command is only for changing local state. This enables wpa_supplicant to complete FT-over-DS transition successfully. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo
implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24cfg80211: Add connection quality monitoring support to nl80211Juuso Oikarinen
Add support for basic configuration of a connection quality monitoring to the nl80211 interface, and basic support for notifying about triggered monitoring events. Via this interface a user-space connection manager may configure and receive pre-warning events of deteriorating WLAN connection quality, and start preparing for roaming in advance, before the connection is already lost. An example usage of such a trigger is starting scanning for nearby AP's in an attempt to find one with better connection quality, and associate to it before the connection characteristics of the existing connection become too bad or the association is even lost, leading in a prolonged delay in connectivity. The interface currently supports only RSSI, but it could be later extended to include other parameters, such as signal-to-noise ratio, if need for that arises. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-15cfg80211/mac80211: allow registering for and sending action framesJouni Malinen
This implements a new command to register for action frames that userspace wants to handle instead of the in-kernel rejection. It is then responsible for rejecting ones that it decided not to handle. There is no unregistration, but the socket can be closed for that. Frames that are not registered for will not be forwarded to userspace and will be rejected by the kernel, the cfg80211 API helps implementing that. Additionally, this patch adds a new command that allows doing action frame transmission from userspace. It can be used either to exchange action frames on the current operational channel (e.g., with the AP with which we are currently associated) or to exchange off-channel Public Action frames with the remain-on-channel command. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6John W. Linville
Conflicts: drivers/net/wireless/libertas/scan.c
2009-12-28mac80211/cfg80211: add station eventsJohannes Berg
When, for instance, a new IBSS peer is found, userspace wants to be notified. Add events for all new stations that mac80211 learns about. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-28cfg80211: add remain-on-channel commandJouni Malinen
Add new commands for requesting the driver to remain awake on a specified channel for the specified amount of time (and another command to cancel such an operation). This can be used to implement userspace-controlled off-channel operations, like Public Action frame exchange on another channel than the operation channel. The off-channel operation should behave similarly to scan, i.e. the local station (if associated) moves into power save mode to request the AP to buffer frames for it and then moves to the other channel to allow the off-channel operation to be completed. The duration parameter can be used to request enough time to receive a response from the target station. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-28cfg80211: fix race between deauth and assoc responseJohannes Berg
Joseph Nahmias reported, in http://bugs.debian.org/562016, that he was getting the following warning (with some log around the issue): ath0: direct probe to AP 00:11:95:77:e0:b0 (try 1) ath0: direct probe responded ath0: authenticate with AP 00:11:95:77:e0:b0 (try 1) ath0: authenticated ath0: associate with AP 00:11:95:77:e0:b0 (try 1) ath0: deauthenticating from 00:11:95:77:e0:b0 by local choice (reason=3) ath0: direct probe to AP 00:11:95:77:e0:b0 (try 1) ath0: RX AssocResp from 00:11:95:77:e0:b0 (capab=0x421 status=0 aid=2) ath0: associated ------------[ cut here ]------------ WARNING: at net/wireless/mlme.c:97 cfg80211_send_rx_assoc+0x14d/0x152 [cfg80211]() Hardware name: 7658CTO ... Pid: 761, comm: phy0 Not tainted 2.6.32-trunk-686 #1 Call Trace: [<c1030a5d>] ? warn_slowpath_common+0x5e/0x8a [<c1030a93>] ? warn_slowpath_null+0xa/0xc [<f86cafc7>] ? cfg80211_send_rx_assoc+0x14d/0x152 ... ath0: link becomes ready ath0: deauthenticating from 00:11:95:77:e0:b0 by local choice (reason=3) ath0: no IPv6 routers present ath0: link is not ready ath0: direct probe to AP 00:11:95:77:e0:b0 (try 1) ath0: direct probe responded ath0: authenticate with AP 00:11:95:77:e0:b0 (try 1) ath0: authenticated ath0: associate with AP 00:11:95:77:e0:b0 (try 1) ath0: RX ReassocResp from 00:11:95:77:e0:b0 (capab=0x421 status=0 aid=2) ath0: associated It is not clear to me how the first "direct probe" here happens, but this seems to be a race condition, if the user requests to deauth after requesting assoc, but before the assoc response is received. In that case, it may happen that mac80211 tries to report the assoc success to cfg80211, but gets blocked on the wdev lock that is held because the user is requesting the deauth. The result is that we run into a warning. This is mostly harmless, but maybe cause an unexpected event to be sent to userspace; we'd send an assoc success event although userspace was no longer expecting that. To fix this, remove the warning and check whether the race happened and in that case abort processing. Reported-by: Joseph Nahmias <joe@nahmias.net> Cc: stable@kernel.org Cc: 562016-quiet@bugs.debian.org Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-22cfg80211: avoid sending spurious deauth to userspaceJohannes Berg
Before commit ca9034592823e8179511e48a78731f95bfdd766c Author: Holger Schurig <hs4233@mail.mn-solutions.de> Date: Tue Oct 13 13:45:28 2009 +0200 cfg80211: remove warning in deauth case we assumed that drivers never give us spurious deauth frames because they filter them out based on the auth state they keep track of. This turned out to be racy, because userspace might deauth while the AP is also sending a deauth frame, so the warning was removed. However, in that case we should not tell userspace about the AP's frame if it requested deauth "first", where "first" means it came to cfg80211 first. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-19mac80211: avoid spurious deauth frames/messagesJohannes Berg
With WEXT, it happens frequently that the SME requests an authentication but then deauthenticates right away because some new parameters came along. Every time this happens we print a deauth message and send a deauth frame, but both of that is rather confusing. Avoid it by aborting the authentication process silently, and telling cfg80211 about that. The patch looks larger than it really is: __cfg80211_auth_remove() is split out from cfg80211_send_auth_timeout(), there's no new code except __cfg80211_auth_canceled() (a one-liner) and the mac80211 bits (7 new lines of code). Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18cfg80211: Allow reassociation in associated stateJouni Malinen
cfg80211 rejects all association requests when in associated state. This prevents clean roaming within an ESS since one would first need to disassociate before being able to request reassociation. Accept the reassociation request and let the old association to be dropped when the new one is completed. This fixes nl80211-based roaming with the current snapshot version of wpa_supplicant (that has code for requesting reassociation explicitly withthe previous BSSID attribute). Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-04cfg80211: remove dead variableJohannes Berg
commit 211a4d12abf86fe0df4cd68fc6327cbb58f56f81 Author: Johannes Berg <johannes@sipsolutions.net> Date: Tue Oct 20 15:08:53 2009 +0900 cfg80211: sme: deauthenticate on assoc failure accidentally introduced a dead variable, I had changed the code to not need it while creating the patch and it looks like I forgot to remove the variable (and nobody else noticed either). Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-30Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2009-10-27cfg80211: remove warning in deauth caseHolger Schurig
It might be the case that __cfg80211_disconnected() has already cleaned up wdev->current_bss() for us. The old code didn't catch that situation and didn't warn needlessly. Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27cfg80211: no cookies in cfg80211_send_XXX()Holger Schurig
Get rid of cookies in cfg80211_send_XXX() functions. Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-27cfg80211: sme: deauthenticate on assoc failureJohannes Berg
When the in-kernel SME gets an association failure from the AP we don't deauthenticate, and thus get into a very confused state which will lead to warnings later on. Fix this by actually deauthenticating when the AP indicates an association failure. (Brought to you by the hacking session at Kernel Summit 2009 in Tokyo, Japan. -- JWL) Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-10-07wext: refactorJohannes Berg
Refactor wext to * split out iwpriv handling * split out iwspy handling * split out procfs support * allow cfg80211 to have wireless extensions compat code w/o CONFIG_WIRELESS_EXT After this, drivers need to - select WIRELESS_EXT - for wext support - select WEXT_PRIV - for iwpriv support - select WEXT_SPY - for iwspy support except cfg80211 -- which gets new hooks in wext-core.c and can then get wext handlers without CONFIG_WIRELESS_EXT. Wireless extensions procfs support is auto-selected based on PROC_FS and anything that requires the wext core (i.e. WIRELESS_EXT or CFG80211_WEXT). Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-20cfg80211: report userspace SME connected event properlyJohannes Berg
Instead of hacking the event reporting into the __cfg80211_connect_result() function which is also invoked by others, set up things correctly and then invoke that function, so that it can do more sanity checking. Also, it is currently not possible to get a ROAMED event from the userspace SME anyway since we send out a DISCONNECTED event when it disassociates and then a new CONNECTED event on the next association. Thanks to Zhu Yi for pointing out that the code is somewhat convoluted and doesn't warn when it should. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14cfg80211: use reassociation when possibleJohannes Berg
With the move of everything related to the SME from mac80211 to cfg80211, we lost the ability to send reassociation frames. This adds them back, but only for wireless extensions. With the userspace SME, it shall control assoc vs. reassoc (it already can do so with the nl80211 interface). I haven't touched the connect() implementation, so it is not possible to reassociate with the nl80211 connect primitive. I think that should be done with the NL80211_CMD_ROAM command, but we'll have to see how that can be handled in the future, especially with fullmac chips. This patch addresses only the immediate regression we had in mac80211, which previously sent reassoc. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14cfg80211: fix nl80211 disconnected eventsJohannes Berg
When reporting a disconnection to userspace, we try to report whether it was from the AP or by our own choice. However, we misreported a broadcast deauth or disassoc as being by own choice, which is wrong. Fix this by checking the sender address instead of the destination address. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-14cfg80211: fix disassociation warning due to misuse of wdev->current_bssPavel Roskin
WARN_ON was triggered at mlme.c:213 when dissociating from an AP. wdev->current_bss->pub.bssid should be used in place of wdev->current_bss for BSSID comparison. Signed-off-by: Pavel Roskin <proski@gnu.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-08-04cfg80211: keep track of current_bss for userspace SMEJohannes Berg
When a userspace SME is active, we're currently not keeping track of the BSS properly for reporting the current link and for internal use. Additionally, it looks like there is a possible BSS leak in that the BSS never gets removed from auth_bsses[]. To fix it, pass the BSS struct to __cfg80211_connect_result in this case. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-29cfg80211: self-contained wext handling where possibleJohannes Berg
Finally! This is what you've all been waiting for! This patch makes cfg80211 take care of wext emulation _completely_ by itself, drivers that don't need things cfg80211 doesn't do yet don't even need to be aware of wireless extensions. This means we can also clean up mac80211's and iwm's Kconfig and make it possible to build them w/o wext now! RIP wext. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-29cfg80211: fix disassoc while not associatedJohannes Berg
When trying to disassociate while not associated, the kernel would crash rather than refusing the operation, fix this; Reported-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24cfg80211: fix more bugs in mlme handlingJohannes Berg
The "what-was-I-thinking-if-anything" patch. Clearly, if cfg80211_send_disassoc() does wdev_lock() and then calls __cfg80211_send_disassoc(), the latter shouldn't lock again. And the sme_state test is ... no further comments. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-24cfg80211: rework key operationJohannes Berg
This reworks the key operation in cfg80211, and now only allows, from userspace, configuring keys (via nl80211) after the connection has been established (in managed mode), the IBSS been joined (in IBSS mode), at any time (in AP[_VLAN] modes) or never for all the other modes. In order to do shared key authentication correctly, it is now possible to give a WEP key to the AUTH command. To configure static WEP keys, these are given to the CONNECT or IBSS_JOIN command directly, for a userspace SME it is assumed it will configure it properly after the connection has been established. Since mac80211 used to check the default key in IBSS mode to see whether or not the network is protected, it needs an update in that area, as well as an update to make use of the WEP key passed to auth() for shared key authentication. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>