- 24 Feb, 2016 40 commits
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Lorenzo Bianconi authored
Add IEEE80211_RADIOTAP_VHT entry to rtap_namespace_sizes array in order to define alignment and size of VHT info in tx radiotap Signed-off-by:
Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Signed-off-by:
Johannes Berg <johannes.berg@intel.com>
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Beni Lev authored
Today, the supplicant will add the RRM capabilities Information Element in the association request only if Quiet period is supported (NL80211_FEATURE_QUIET). Quiet is one of many RRM features, and there are other RRM features that are not related to Quiet (e.g. neighbor report). Therefore, requiring Quiet to enable RRM is too restrictive. Some of the features, like neighbor report, can be supported by user space without any help from the kernel. Hence adding the RRM capabilities IE to association request should be the sole user space's decision. Removing the RRM dependency on Quiet in the driver solves this problem, but using an old driver with a user space tool that would not require Quiet feature would be problematic: the user space would add NL80211_ATTR_USE_RRM in the association request even if the kernel doesn't advertize NL80211_FEATURE_QUIET and the association would be denied by the kernel. This solution adds a global RRM capability, that tells user space that it can request RRM capabilities IE publishment without any specific feature support in the kernel. Signed-off-by:
Beni Lev <beni.lev@intel.com> Signed-off-by:
Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by:
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Sara Sharon authored
Drivers may need to track which vif is using VHT MU-MIMO. Move the flag indicationg the ownership of MU_MIMO to ieee80211_vif. Signed-off-by:
Sara Sharon <sara.sharon@intel.com> Signed-off-by:
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Sara Sharon authored
Provide an interface to the lower level driver to set the VHT MU-MIMO data. This is needed for example when there is an update of the group data during low power state, where the management frame will not be passed to the host at all. Signed-off-by:
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Eliad Peller authored
Since the PNs of all the tx keys are now tracked in the public part of the key struct (with atomic counter), we no longer need these functions. dvm and vt665{5,6} are currently the only users of these functions, so update them accordingly. Signed-off-by:Eliad Peller <eliadx.peller@intel.com> Signed-off-by:
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Eliad Peller authored
If protocol offloading is configured, the fw might generate some frames (e.g. arp response) on its own during d3/d0i3. On d3/d0i3 exit the driver queries the updated PN (if relevant), and updates its keys (for the d0i3 case, this is done by iwl_mvm_d0i3_exit_work(), which is scheduled on d0i3 exit) While in d0i3, iwlmvm defers tx frames until d0i3 exit, and then continues their processing. This is problematic with TKIP, since the frame's PN has already been set at this stage (in contrast to CCMP, where the PN is being set only later on), so both the frame's PN and the upcoming PN update (from d0i3 exit work) might be wrong. Fix it by moving the TX PN assignment (for TKIP) to the driver, similarly to CCMP. Signed-off-by:
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Eliad Peller authored
Some drivers/devices might want to set the IVs by themselves (and still let mac80211 generate MMIC). Specifically, this is needed when the device does offloading at certain times, and the driver has to make sure that the IVs of new tx frames (from the host) are synchronized with IVs that were potentially used during the offloading. Similarly to CCMP, move the TX IVs of TKIP keys to the public part of the key struct, and export a function to add the IV right into the crypto header. The public tx_pn field is defined as atomic64, so define TKIP_PN_TO_IV16/32 helper macros to convert it to iv16/32 when needed. Since the iv32 used for the p1k cache is taken directly from the frame, we can safely remove iv16/32 from being protected by tkip.txlock. Signed-off-by:
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Lorenzo Bianconi authored
Fix wiphy supported_band access in tx radiotap parsing introduced in commit 5ec3aed9ba4c ("mac80211: Parse legacy and HT rate in injected frames"). In particular, info->band is always set to 0 (IEEE80211_BAND_2GHZ) since it has not assigned yet. This cause a kernel crash on 5GHz only devices. Move ieee80211_parse_tx_radiotap() after info->band assignment Signed-off-by: -
Felix Fietkau authored
This massively reduces data copying and thus improves rx performance Signed-off-by:
Felix Fietkau <nbd@openwrt.org> Signed-off-by:
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Felix Fietkau authored
reuse_skb is set to true if the code decides to use the last segment. Fixes a memory leak Signed-off-by:
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Sara Sharon authored
The source and destintation addresses in the memcpy arguments are flipped. Fix that. Fixes: 23a1f8d4("mac80211: process and save VHT MU-MIMO group frame") Signed-off-by:
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Henning Rogge authored
mpp_path_del() and mesh_path_del() are mostly the same function. Move common code into a new static function. Acked-by:
Bob Copeland <me@bobcopeland.com> Signed-off-by:
Henning Rogge <henning.rogge@fkie.fraunhofer.de> Signed-off-by:
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Henning Rogge authored
Remember the last time when a mpp table entry is used for rx or tx and remove them after MESH_PATH_EXPIRE time. Acked-by:
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Henning Rogge authored
Make the mesh_path_del() function remove all mpp table entries that are proxied by the removed mesh path. Acked-by:
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Lior David authored
PBSS (Personal Basic Service Set) is a new BSS type for DMG networks. It is similar to infrastructure BSS, having an AP-like entity called PCP (PBSS Control Point), but it has few differences. PBSS support is mandatory for 11ad devices. Add support for PBSS by introducing a new PBSS flag attribute. The PBSS flag is used in the START_AP command to request starting a PCP instead of an AP, and in the CONNECT command to request connecting to a PCP instead of an AP. Signed-off-by:
Lior David <liord@codeaurora.org> Signed-off-by:
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Felix Fietkau authored
Signed-off-by:
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Felix Fietkau authored
Use skb_copy_bits in preparation for allowing fragmented skbs Signed-off-by:
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Felix Fietkau authored
Prepararation for zero-copy A-MSDU support with page fragment SKBs Signed-off-by:
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Sudip Mukherjee authored
On error we jumped to the error label and returned the error code but we missed releasing sinfo. Fixes: 5fe74014172d ("mac80211: avoid excessive stack usage in sta_info") Reviewed-by:Julian Calaby <julian.calaby@gmail.com> Signed-off-by:
Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by:
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Jouni Malinen authored
Number of deployed 80 MHz capable VHT stations that do not support 80+80 and 160 MHz bandwidths seem to misbehave when trying to connect to an AP that advertises 80+80 or 160 MHz channel bandwidth in the VHT Operation element. To avoid such issues with deployed devices, modify the design based on recently accepted IEEE 802.11 standard changes (*). This allows poorly implemented VHT 80 MHz stations to connect with the AP in 80 MHz mode. 80+80 and 160 MHz capable stations need to support the new workaround mechanism to allow full bandwidth to be used. However, there are more or less no impacted station with 80+80/160 capability deployed. The rebased version of this patch is based on the updated version from Johannes Berg to take the HT/VHT chandef refactoring into account. (*) Changes in https://mentor.ieee.org/802.11/dcn/15/11-15-1530-04-000m-vht160-operation-signaling-through-non-zero-ccfs1.docx were accepted during the IEEE 802.11 January 2016 meeting. Signed-off-by:
Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by:
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Sara Sharon authored
If any frames are dropped that are part of a BA session, the reorder buffer will "indefinitely" (until the timeout) wait for them to come in (or a BAR moving the window) and won't release frames after them. This means it isn't possible to filter frames within a BA session in firmware. Introduce an API function that allows such filtering. Calling this function will move the BA window forward to the new SSN, and allows marking frames after the SSN as having been filtered, so any future reordering activity will release frames while skipping the holes. Signed-off-by:
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Johannes Berg authored
Clean up ieee80211_rx_reorder_ready() callers by passing the RX TID struct and the index, instead of the frames list. This will make it more extensible as well. While at it, move the inline to rx.c as it's only used there. Signed-off-by: -
Michal Kazior authored
This will allow drivers to make more educated decisions whether to defer transmission or not. Relying on wake_tx_queue() call count implicitly was not possible because it could be called without queued frame count actually changing on software tx aggregation start/stop code paths. It was also not possible to know how long byte-wise queue was without dequeueing. Signed-off-by:
Michal Kazior <michal.kazior@tieto.com> Signed-off-by:
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Sven Eckelmann authored
Drivers/devices without their own rate control algorithm can get the information what rates they should use from either the radiotap header of injected frames or from the rate control algorithm. But the parsing of the legacy rate information from the radiotap header was removed in commit e6a9854b ("mac80211/drivers: rewrite the rate control API"). The removal of this feature heavily reduced the usefulness of frame injection when wanting to simulate specific transmission behavior. Having rate parsing together with MCS rates and retry support allows a fine grained selection of the tx behavior of injected frames for these kind of tests. Signed-off-by:
Sven Eckelmann <sven@narfation.org> Cc: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by:
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Bob Copeland authored
The mean_chain_len field in struct mesh_table is copied whenever a new mesh table is allocated, but only ever has the value 2 and is never otherwise updated, so just remove it and use the related define instead. Signed-off-by:
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Arnd Bergmann authored
When CONFIG_OPTIMIZE_INLINING is set, the sta_info_insert_finish function consumes more stack than normally, exceeding the 1024 byte limit on ARM: net/mac80211/sta_info.c: In function 'sta_info_insert_finish': net/mac80211/sta_info.c:561:1: error: the frame size of 1080 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] It turns out that there are two functions that put a 'struct station_info' on the stack: __sta_info_destroy_part2 and sta_info_insert_finish, and this structure alone requires up to 792 bytes. Hoping that both are called rarely enough, this replaces the on-stack structure with a dynamic allocation, which unfortunately requires some suboptimal error handling for out-of-memory. The __sta_info_destroy_part2 function is actually affected by the stack usage twice because it calls cfg80211_del_sta_sinfo(), which has another instance of struct station_info on its stack. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Fixes: 98b62183 ("mac80211/cfg80211: add station events") Fixes: 6f7a8d26 ("mac80211: send statistics with delete station event") Signed-off-by:
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Johannes Berg authored
Make sure there's at least a debug message whenever the connection to the AP is terminated. Also change one message from wiphy_debug() to the common mlme_dbg(). Signed-off-by: -
Sara Sharon authored
When joining IBSS a full scan should be initiated in order to search for existing cell, unless the fixed_channel parameter was set. A default channel to create the IBSS on if no cell was found is provided as well. However - a scan is initiated only on the default channel provided regardless of whether ifibss->fixed_channel is set or not, with the obvious result of the cell not joining existing IBSS cell that is on another channel. Fixes: 76bed0f4 ("mac80211: IBSS fix scan request") Signed-off-by:
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Johannes Berg authored
The timestamp given by iwlwifi is at the beginning of the frame over the air, at (or during) the SYNC field. Allow such timestamps to be given to mac80211, at least (for now) for frames with non-HT/VHT preambles. Signed-off-by: -
Michal Kazior authored
The ieee80211_queue_stopped() expects hw queue number but it was given raw WMM AC number instead. This could cause frame drops and problems with traffic in some cases - most notably if driver doesn't map AC numbers to queue numbers 1:1 and uses ieee80211_stop_queues() and ieee80211_wake_queue() only without ever calling ieee80211_wake_queues(). On ath10k it was possible to hit this problem in the following case: 1. wlan0 uses queue 0 (ath10k maps queues per vif) 2. offchannel uses queue 15 3. queues 1-14 are unused 4. ieee80211_stop_queues() 5. ieee80211_wake_queue(q=0) 6. ieee80211_wake_queue(q=15) (other queues are not woken up because both driver and mac80211 know other queues are unused) 7. ieee80211_rx_h_mesh_fwding() 8. ieee80211_select_queue_80211() returns 2 9. ieee80211_queue_stopped(q=2) returns true 10. frame is dropped (oops!) Fixes: d3c1597b ("mac80211: fix forwarded mesh frame queue mapping") Signed-off-by: -
Michal Kazior authored
The driver can access the queue simultanously while mac80211 tears down the interface. Without spinlock protection this could lead to corrupting sk_buff_head and subsequently to an invalid pointer dereference. Fixes: ba8c3d6f ("mac80211: add an intermediate software queue implementation") Signed-off-by:
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Sunil Shahu authored
Remove unnecessory "if" statement and club it with previos "if" block. Signed-off-by:
Sunil Shahu <shshahu@gmail.com> Signed-off-by:
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João Paulo Rechi Vita authored
Add a note to userspace on the effect of RFKILL_OP_CHANGE_ALL also updating the default state for hotplugged devices. Signed-off-by:
João Paulo Rechi Vita <jprvita@endlessm.com> [reword a bit] Signed-off-by:
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João Paulo Rechi Vita authored
This was scheduled to be removed in 2012 by: commit 69c86373 Author: florian@mickler.org <florian@mickler.org> Date: Wed Feb 24 12:05:16 2010 +0100 Document the rfkill sysfs ABI This moves sysfs ABI info from Documentation/rfkill.txt to the ABI subfolder and reformats it. This also schedules the deprecated sysfs parts to be removed in 2012 (claim file) and 2014 (state file). Signed-off-by:
Florian Mickler <florian@mickler.org> Signed-off-by:
John W. Linville <linville@tuxdriver.com> Signed-off-by:
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João Paulo Rechi Vita authored
__rfkill_set_hw_state() is only one used in rfkill_set_hw_state(), and none of them are long or complicated, so merging the two makes the code easier to read. Signed-off-by:
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João Paulo Rechi Vita authored
RFKILL_BLOCK_SW value have just been saved to prev, no need to check it again in the if expression. This makes code a little bit easier to read. Signed-off-by:
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Ola Olsson authored
Signed-off-by:
Ola Olsson <ola.olsson@sonymobile.com> Signed-off-by:
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Johannes Berg authored
When suspended while polling is paused, polling will erroneously resume at resume time. Fix this by tracking pause and suspend in separate state variable and adding the necessary checks. Clarify the documentation on this as well. Signed-off-by: -
Johannes Berg authored
The function here already has a variable hdr that even contains the right thing, so the inner scope's hdr variable that's shadowing the outer one can just be removed. Signed-off-by: -
Bjorn Andersson authored
Make the addr parameter const in SET_IEEE80211_PERM_ADDR() to save clients from having to cast away a const qualifier. Signed-off-by:
Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by:
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