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2012-11-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller8-9/+35
Minor line offset auto-merges. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-14Merge branch 'for-john' of ↵John W. Linville8-9/+35
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
2012-11-10mac80211: call skb_dequeue/ieee80211_free_txskb instead of __skb_queue_purgeFelix Fietkau4-6/+20
Fixes more wifi status skb leaks, leading to hostapd/wpa_supplicant hangs. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-09mac80211: don't send null data packet when not associatedJohannes Berg1-0/+2
On resume or firmware recovery, mac80211 sends a null data packet to see if the AP is still around and hasn't disconnected us. However, it always does this even if it wasn't even connected before, leading to a warning in the new channel context code. Fix this by checking that it's associated. Cc: stable@vger.kernel.org Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-09mac80211: fix memory leak in device registration error pathJohannes Berg1-2/+4
If the cipher suites need to be allocated, but this allocation fails, this leaks the internal scan request. Fix that by going to the correct error handling label. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-05mac80211: sync acccess to tx_filtered/ps_tx_buf queuesArik Nemtsov1-0/+5
These are accessed without a lock when ending STA PSM. If the sta_cleanup timer accesses these lists at the same time, we might crash. This may fix some mysterious crashes we had during ieee80211_sta_ps_deliver_wakeup. Cc: stable@vger.kernel.org Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Ido Yariv <ido@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-31mac80211: init sched_scan_iesDavid Spinadel1-1/+1
In case that there is an unsupported band, the ie will be unallocated and the free will crash. Cc: stable@vger.kernel.org Signed-off-by: David Spinadel <david.spinadel@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-31mac80211: do not call ieee80211_configure_filter if no interfaces are upFelix Fietkau1-0/+3
Drivers are not expected to handle it before drv_start has been called. It will be called again after an interface has been brought up. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-29Merge branch 'master' of ↵John W. Linville3-26/+92
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless Conflicts: drivers/net/wireless/mwifiex/cfg80211.c
2012-10-29Merge branch 'for-john' of ↵John W. Linville6-14/+59
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
2012-10-29Merge branch 'for-john' of ↵John W. Linville3-26/+92
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
2012-10-26mac80211: make sure data is accessible in EAPOL checkJohannes Berg1-8/+10
The code to allow EAPOL frames even when the station isn't yet marked associated needs to check that the incoming frame is long enough and due to paged RX it also can't assume skb->data contains the right data, it must use skb_copy_bits(). Fix this to avoid using data that doesn't really exist. Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-26mac80211: verify that skb data is presentJohannes Berg1-1/+31
A number of places in the mesh code don't check that the frame data is present and in the skb header when trying to access. Add those checks and the necessary pskb_may_pull() calls. This prevents accessing data that doesn't actually exist. To do this, export ieee80211_get_mesh_hdrlen() to be able to use it in mac80211. Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-26mac80211: check management frame header lengthJohannes Berg1-4/+8
Due to pskb_may_pull() checking the skb length, all non-management frames are checked on input whether their 802.11 header is fully present. Also add that check for management frames and remove a check that is now duplicate. This prevents accessing skb data beyond the frame end. Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-26mac80211: fix SSID copy on IBSS JOINAntonio Quartulli1-1/+1
The 'ssid' field of the cfg80211_ibss_params is a u8 pointer and its length is likely to be less than IEEE80211_MAX_SSID_LEN most of the time. This patch fixes the ssid copy in ieee80211_ibss_join() by using the SSID length to prevent it from reading beyond the string. Cc: stable@vger.kernel.org Signed-off-by: Antonio Quartulli <ordex@autistici.org> [rewrapped commit message, small rewording] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-25mac80211: don't inspect Sequence Control field on control framesJavier Cardona1-0/+4
Per IEEE Std. 802.11-2012, Sec 8.2.4.4.1, the sequence Control field is not present in control frames. We noticed this problem when processing Block Ack Requests. Cc: stable@vger.kernel.org Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: Javier Lopez <jlopex@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-25mac80211: complete bss_info tracingJohannes Berg1-3/+31
Some fields have been added but were missed in tracing, add them now. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-25mac80211: use non-atomic bitmap operation for local variableJohannes Berg1-1/+1
For a local variable there's no need to use the atomic set_bit() operation, use __set_bit() instead. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-25mac80211: Don't drop frames received with mesh ttl == 1Javier Cardona1-1/+1
Prior this fix, those frames were not received, nor forwarded. Fix this to receive and not forward. Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-25mac80211: Only process mesh config header on frames that RA_MATCHJavier Cardona1-4/+2
Doing otherwise is wrong, and may wreak havoc on the mpp tables, specially if the frame is encrypted. Cc: stable@vger.kernel.org Reported-by: Chaoxing Lin <Chaoxing.Lin@ultra-3eti.com> Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-25mac80211: remove duplicate check in ieee80211_rx_mgmt_beaconRami Rosen1-5/+4
Remove a duplicate check in ieee80211_rx_mgmt_beacon, there is no need to make again the same check for the IEEE80211_HW_PS_NULLFUNC_STACK twice; the two ifs can be consolidated. Signed-off-by: Rami Rosen <ramirose@gmail.com> [reword commit message & break long lines and also clean up variable] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-24mac80211: use blacklist for duplicate IE checkJohannes Berg1-7/+35
Instead of the current whitelist which accepts duplicates only for the quiet and vendor IEs, use a blacklist of all IEs (that we currently parse) that can't be duplicated. This avoids detecting a beacon as corrupt in the future when new IEs are added that can be duplicated. Cc: stable@vger.kernel.org Signed-off-by: Paul Stewart <pstew@chromium.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-23mac80211: expose AES-CMAC subkey calculationAssaf Krauss1-0/+17
Expose a function for the AES-CMAC subkey calculation to drivers. This is the first step of the AES-CMAC cipher key setup and may be required for CMAC hardware offloading. Signed-off-by: Assaf Krauss <assaf.krauss@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-23mac80211: mesh STAs only process mesh beaconsThomas Pedersen1-4/+5
Before, a mesh STA would execute some code on behalf of AP or IBSS beacons. Since the mesh stack currently does not consider anything but other mesh STAs interesting, limit processing to just these and save a little overhead. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-23Merge branch 'master' of ↵John W. Linville5-20/+38
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless Conflicts: drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c net/mac80211/mlme.c
2012-10-22mac80211: fix WDS channel context testJohannes Berg1-1/+1
WDS is (currently) not allowed when channel contexts are *supported*, not when they're *not* supported. Fix the inverted test. Reported-by: Ronald <ronald645@gmail.com> Tested-by: Ronald <ronald645@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-19mac80211: make client powersave independent of interface typeMarco Porsch6-74/+122
This patch prepares mac80211 for a later implementation of mesh or ad-hoc powersave clients. The structures related to powersave (buffer, TIM map, counters) are moved from the AP-specific interface structure to a generic structure that can be embedded into any interface type. The functions related to powersave are prepared to allow easy extension with different interface types. For example with: + } else if (sta->sdata->vif.type == NL80211_IFTYPE_MESH_POINT) { + ps = &sdata->u.mesh.ps; Some references to the AP's beacon structure are removed where they were obviously not used. The patch compiles without warning and has been briefly tested as AP interface with one client in PS mode. Signed-off-by: Marco Porsch <marco.porsch@etit.tu-chemnitz.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-18nl/cfg80211: force scan using an AP vif if requestedAntonio Quartulli2-2/+13
If the user wants to scan using a vif configured as AP, cfg80211 must give him a chance to do it, even if this will disrupt the stations performance due to off-channel scanning. To do so, this patch adds a 'force' flag to the SCAN_TRIGGER command which tells cfg80211 to perform the scanning operation even if the vif is an AP and the beaconing has already started. Signed-off-by: Antonio Quartulli <ordex@autistici.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-18mac80211: fix copy-paste typo in KconfigMarco Porsch1-1/+1
Signed-off-by: Marco Porsch <marco.porsch@etit.tu-chemnitz.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-18mac80211: use __printf attribute in debugfsJohannes Berg1-3/+3
The internal function mac80211_format_buffer() has a printf-style argument list, so add the attribute to have gcc verify that list. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-18mac80211: remove some unused codeJohannes Berg4-18/+4
There are a number of unused variables that gcc pointed out (when building with W=1) as well as some conditions that can never be true due to the datatypes used: unsigned values can't be less than zero. Remove this code. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-18mac80211: remove unimplemented mesh vendor syncJohannes Berg3-54/+5
There's no vendor-specific mesh sync implemented and there don't need to be dummy handlers that only print messages, so remove that code. While at it, also constify the mesh sync ops. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-18mac80211: Notify new IBSS network creationSujith Manoharan1-3/+8
Initialization of beacon transmission in IBSS mode depends on whether a new BSS is being created or joined. When joining an existing IBSS network, beaconing has to start only after a TSF-sync has happened - this is explained in 11.1.4. Introduce a new parameter in the BSS information structure to indicate creator/joiner mode. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-18mac80211: add support for tx to abort low priority scan requestsSam Leffler3-4/+22
Use NL80211_SCAN_FLAG_LOW_PRIORITY flag in mac80211's scan state machine to prematurely terminate scan operations if outbound traffic collides. This is useful for marking background scans so they don't affect throughput. Signed-off-by: Sam Leffler <sleffler@chromium.org> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> [set feature flag only if software scan is used] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-18wireless: use OR operation to set wiphy featuresJohannes Berg1-3/+3
The next patch will introduce a flag that is set by default in cfg80211 so drivers and mac80211 need to use |= to set features they have so that they don't clear the already-set feature. We could set the flag in wiphy_register() instead of wiphy_new() to avoid this patch, but then the drivers couldn't *unset* flags they don't want to use even though the implementation is generic. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17Merge branch 'for-john' of ↵John W. Linville2-15/+31
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
2012-10-17mac80211: connect with HT20 if HT40 is not permittedJohannes Berg1-10/+20
Some changes to fix issues with HT40 APs in Korea and follow-up changes to allow using HT40 even if the local regulatory database disallows it caused issues with iwlwifi (and could cause issues with other devices); iwlwifi firmware would assert if you tried to connect to an AP that has an invalid configuration (e.g. using HT40- on channel 140.) Fix this, while avoiding the "Korean AP" issue by disabling HT40 and advertising HT20 to the AP when connecting. Cc: stable@vger.kernel.org [3.6] Reported-by: Florian Reitmeir <florian@reitmeir.org> Tested-by: Florian Reitmeir <florian@reitmeir.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17{nl,cfg}80211: Peer STA VHT capsMahesh Palivela1-0/+5
To save STAs VHT caps in AP mode Signed-off-by: Mahesh Palivela <maheshp@posedge.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17mac80211: VHT peer STA capsMahesh Palivela5-0/+60
Save the AP's VHT capabilities (in managed mode) and make them available to the driver in the station information. Unlike HT capabilities, they aren't restricted to the common capabilities, so drivers must be aware of their own capabilities. Signed-off-by: Mahesh Palivela <maheshp@posedge.com> [fix endian conversion bug ...] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17ieee80211: Rename VHT cap structMahesh Palivela3-5/+5
Rename struct ieee80211_vht_capabilities to ieee80211_vht_cap and renamed its member vht_capabilities_info to vht_cap_info. Signed-off-by: Mahesh Palivela <maheshp@posedge.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17mac80211: move out the non-statistics variable estab_plinks from mesh_statAshok Nagarajan5-6/+6
estab_plinks is not a statistics member. Hence move estab_plinks from struct mesh_stat to struct ieee80211_if_mesh Signed-off-by: Ashok Nagarajan <ashok@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17mac80211: Use appropriate debug wrapperMohammed Shafi Shajakhan1-2/+2
ieee80211_sta_expire will be called by both IBSS and mesh interfaces to account for inactive stations, so it would be more appropriate to use sta_dbg instead of ibss_dbg. Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17mac80211: Allow station mode SAE to be implemented in user spaceJouni Malinen3-7/+43
SAE uses two rounds of Authentication frames and both rounds require considerable calculation to be done. This commit extends the existing station mode authentication request to allow more control for user space programs to build the SAE fields and to run the authentication step ones. Only the second round with authentication transaction sequence 2 will result in moving to authenticated state. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17mac80211: Add debug print on unexpect authentication stateJouni Malinen1-1/+6
This is useful when debugging authentication process issues. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17mac80211: Take status code as parameter to ieee80211_send_authJouni Malinen4-7/+7
Non-zero status code may be needed for Authentication frames, e.g., when using SAE. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17mac80211: add channel context iteratorJohannes Berg1-2/+20
Drivers may need to iterate the active channel contexts, export an iterator function to allow that. To make it possible, use RCU-safe list functions. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17mac80211: track needed RX chains for channel contextsJohannes Berg11-91/+205
On each channel that the device is operating on, it may need to listen using one or more chains depending on the SMPS settings of the interfaces using it. The previous channel context changes completely removed this ability (before, it was available as the SMPS mode). Add per-context tracking of the required static and dynamic RX chains and notify the driver on changes. To achieve this, track the chains and SMPS mode used on each virtual interface and update the channel context whenever this changes. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17mac80211: use channel contextsJohannes Berg16-466/+586
Instead of operating on a single channel only, use the new channel context infrastructure in all mac80211 code. This enables drivers that want to use the new channel context infrastructure to use multiple channels, while nothing should change for all the other drivers that don't support it. Right now this disables both TX power settings and spatial multiplexing powersave. Both need to be re-enabled on a channel context basis. Additionally, when channel contexts are used drop the connection when channel switch is received rather than trying to handle it. This will have to be improved later. [With fixes from Eliad and Emmanuel incorporated] Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-16mac80211: track whether to use channel contextsJohannes Berg5-0/+37
Depending on the driver, channel contexts may be used or not. If they are used, the driver must have support for hardware scan and remain-on-channel; otherwise the driver must not advertise support for multiple channels. Also prohibit WDS type interfaces when channel contexts are to be used as there's no clear definition of which channel they use. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-16mac80211: check channel context methodsJohannes Berg1-0/+7
Verify that the channel context methods are all assigned by the driver or not used. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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