- 28 Oct, 2013 19 commits
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Chun-Yeow Yeoh authored
Trigger the mesh channel switching procedure if the mesh STA happens to miss the CSA action frame but able to receive the beacon containing the CSA and MCSP elements from its peer mesh STAs. Signed-off-by:
Chun-Yeow Yeoh <yeohchunyeow@cozybit.com> [fix locking in ieee80211_mesh_process_chnswitch()] Signed-off-by:
Johannes Berg <johannes.berg@intel.com>
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Chun-Yeow Yeoh authored
Implement the required procedures for mesh channel switching as defined in the IEEE Std 802.11-2012 section 10.9.8.4.3 and also handle the CSA and MCSP elements as followed: * Add the function for updating the beacon and probe response frames with CSA and MCSP elements during the period of switching to the new channel. Both CSA and MCSP elements must be included in beacon and probe response frames until the intended channel switch time. * The ifmsh->csa_settings is set to NULL and the CSA and MCSP elements will then be removed from the beacon or probe response frames once the new channel is switched to. Signed-off-by:
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Chun-Yeow Yeoh authored
Allow the triggering of CSA frame using mesh interface. The rules are more or less same with IBSS, such as not allowed to change between the band and channel width has to be same from the previous mode. Also, move the ieee80211_send_action_csa to a common space so that it can be re-used by mesh interface. Signed-off-by:
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Chun-Yeow Yeoh authored
Process the CSA frame according to the procedures define in IEEE Std 802.11-2012 section 10.9.8.4.3 as follow: * The mesh channel switch parameters element (MCSP) must be availabe. * If the MCSP's TTL is 1, drop the frame but still process the CSA. * If the MCSP's precedence value is less than or equal to the current precedence value, drop the frame and do not process the CSA. * The CSA frame is forwarded after TTL is decremented by 1 and the initiator field is set to 0. Transmit restrict field and others are maintained as is. * No beacon or probe response frame are handled here. Also, introduce the debug message used for mesh CSA purpose. Signed-off-by:
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Chun-Yeow Yeoh authored
Refactor the channel switch IE parsing to reduce the number of function parameters. Signed-off-by:
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Felix Fietkau authored
This can be used by a driver to prepare skbs for transmission, which were obtained via functions such as ieee80211_probereq_get or ieee80211_nullfunc_get. This is useful for drivers that want to send those frames directly, but need rate control information to be prepared first. Signed-off-by:
Felix Fietkau <nbd@openwrt.org> Signed-off-by:
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Luis R. Rodriguez authored
Drivers can now use this to parse the regulatory request and be more verbose when needed. Signed-off-by:
Luis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by:
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Marco Porsch authored
This patch fixes errors in the mesh powersave logic which cause that remote peers do not get peer power mode change notifications and mesh peer service periods (MPSPs) got stuck. When closing a peer link, set the (now invalid) peer-specific power mode to 'unknown'. Avoid overhead when local power mode is unchanged. Reliably clear MPSP flags on peering status update. Avoid MPSP flags getting stuck by not requesting a further MPSP ownership if we already are an MPSP owner. Signed-off-by:
Marco Porsch <marco@cozybit.com> Signed-off-by:
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Seth Forshee authored
6c17b77b ensures that a device's mac80211 queues will remain stopped while offchannel. Since the vif can no longer be offchannel when the queues wake it's not necessary to check for this before waking its netdev queues. Signed-off-by:
Seth Forshee <seth.forshee@canonical.com> Signed-off-by:
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Heikki Krogerus authored
Including ACPI ID for Broadcom GPS receiver BCM4752. Signed-off-by:
Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by:
Rhyland Klein <rklein@nvidia.com> Reviewed-by:
Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
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Heikki Krogerus authored
This will add the relevant values like the gpios and the type in rfkill_gpio_platform_data to the rfkill_gpio_data structure. It will allow those values to be easily picked from DT and ACPI tables later. Signed-off-by:
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Heikki Krogerus authored
This sets the direction of the gpio once when it's requested, and uses the spinlock-safe gpio_set_state() to change the state. Signed-off-by:
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Heikki Krogerus authored
Use a simple flag to see the state of the clock, and make the clock available even without a name. Also, get rid of HAVE_CLK dependency. Signed-off-by:
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Heikki Krogerus authored
And remove now unneeded resource freeing. Signed-off-by:
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Johannes Berg authored
Two functions were changed but their references weren't updated in the docbook template, propagate the change. Signed-off-by: -
Johannes Berg authored
Document the IEEE80211_HW_SUPPORTS_HT_CCK_RATES flag. Reported-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
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Simon Wunderlich authored
Allow changing to DFS channels if the channel is available for beaconing and userspace controls DFS operation. Channel switch announcement from other stations on DFS channels will be interpreted as radar event. These channels will then be marked as unvailable. Signed-off-by:
Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by:
Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> Signed-off-by:
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Simon Wunderlich authored
To use DFS in IBSS mode, userspace is required to react to radar events. It can inform nl80211 that it is capable of doing so by adding a NL80211_ATTR_HANDLE_DFS attribute when joining the IBSS. This attribute is supplied to let the kernelspace know that the userspace application can and will handle radar events, e.g. by intiating channel switches to a valid channel. DFS channels may only be used if this attribute is supplied and the driver supports it. Driver support will be checked even if a channel without DFS will be initially joined, as a DFS channel may be chosen later. Signed-off-by:
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Emmanuel Grumbach authored
When the driver requests to move to STATIC or DYNAMIC SMPS, we send an action frame to each associated station and reconfigure the channel context / driver. Of course, non-MIMO stations are ignored. The beacon isn't updated. The association response will include the original capabilities. Stations that associate while in non-OFF SMPS mode will get an action frame right after association to inform them about our current state. Note that we wait until the end of the EAPOL. Sending an action frame before the EAPOL is finished can be an issue for a few clients. Clients aren't likely to send EAPOL frames in MIMO anyway. When the SMPS configuration gets more permissive (e.g. STATIC -> OFF), we don't wake up stations that are asleep We remember that they don't know about the change and send the action frame when they wake up. When the SMPS configuration gets more restrictive (e.g. OFF -> STATIC), we set the TIM bit for every sleeping STA. uAPSD stations might send MIMO until they poll the action frame, but this is for a short period of time. Signed-off-by:
Emmanuel Grumbach <emmanuel.grumbach@intel.com> [fix vht streams loop, initialisation] Signed-off-by:
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- 11 Oct, 2013 4 commits
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Ard Biesheuvel authored
Use the generic CCM aead chaining mode driver rather than a local implementation that sits right on top of the core AES cipher. This allows the use of accelerated implementations of either CCM as a whole or the CTR mode which it encapsulates. Signed-off-by:
Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by:
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Luis R. Rodriguez authored
This makes it easier to read. Cc: smihir@qti.qualcomm.com Cc: tushnimb@qca.qualcomm.com Signed-off-by:
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Luis R. Rodriguez authored
If we have a wiphy with an ISO3166-alpha2 regulatory domain programmed with the strict flag set we wait until the wiphy gets its wiphy->regd programmed before allowing regulatory domains hints other than country IE hints from processing on the wiphy. The existing check however discards the possibility of custom regulatory domains having also used the strict flag and these will not have the wiphy->regd set. Custom strict regulatory domains never set the wiphy->regd though as such currently all regulatory hints other than country IE hints are being ignored on these wiphys. All custom strict regulatory domains set the wiphy with the WIPHY_FLAG_CUSTOM_REGULATORY and use wiphy_apply_custom_regulatory(). Enhance the check for the strict ISO3166-alpha2 regulatory domain case by exempting the WIPHY_FLAG_CUSTOM_REGULATORY case. This will enable other regulatory hints to be processed now for these strict custom regulatory domains. Cc: smihir@qti.qualcomm.com Cc: tushnimb@qca.qualcomm.com Signed-off-by:
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Sunil Dutt authored
The information of the peer's supported channels and supported operating classes are required for the driver to perform TDLS off channel operations. This commit enhances the function nl80211_(new)set_station to pass this information of the peer to the driver. Signed-off-by:
Sunil Dutt <c_duttus@qti.qualcomm.com> [return errors for malformed tuples] Signed-off-by:
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- 09 Oct, 2013 1 commit
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Luis R. Rodriguez authored
It is incorrect to refer to this as 11d as 802.11d was just a proposed amendment, 802.11d was merged to the standard so use proper terminology. Signed-off-by:
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- 08 Oct, 2013 1 commit
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Luis R. Rodriguez authored
The names are prefixed incorrectly on the documentation. Signed-off-by:
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- 02 Oct, 2013 2 commits
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Arik Nemtsov authored
Limit the current implementation to a single channel context used by a single vif, thereby avoiding multi-vif/channel complexities. Reuse the main function from AP CSA code, but move a portion out in order to fit the STA scenario. Add a new mac80211 HW flag so we don't break devices that don't support channel switch with channel-contexts. The new behavior will be opt-in. Signed-off-by:
Arik Nemtsov <arik@wizery.com> Signed-off-by:
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cedric Voncken authored
If the VLAN tci is set in skb->vlan_tci use the priority field to determine the WMM priority. Signed-off-by:
cedric Voncken <cedric.voncken@acksys.fr> Signed-off-by:
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- 01 Oct, 2013 9 commits
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Johannes Berg authored
If allowed in a country, these channels typically require DFS so mark them as such. Channel 144 is a bit special, it's coming into use now to allow more VHT 80 channels, but world roaming with passive scanning is acceptable anyway. It seems fairly unlikely that it'll be used as the control channel for a VHT AP, but it needs to be present to allow a full VHT connection to an AP that uses it as one of the secondary channels. Also enable VHT 160 on these channels, and also for channels 36-48 to be able to use VHT 160 there. Signed-off-by: -
Simon Wunderlich authored
A CAC should fail if it is triggered while the interface is already running. Signed-off-by:
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Fred Zhou authored
Move the default setting for WMM parameters outside the for loop to avoid redundant assignment multiple times. Signed-off-by:
Fred Zhou <fred.zy@gmail.com> Signed-off-by:
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Michal Kazior authored
Some devices may not be able to report A-MSDUs in single buffers. Drivers for such devices were forced to re-assemble A-MSDUs which would then be eventually disassembled by mac80211. This could lead to CPU cache thrashing and poor performance. Since A-MSDU has a single sequence number all subframes share it. This was in conflict with retransmission/duplication recovery (IEEE802.11-2012: 9.3.2.10). Patch introduces a new flag that is meant to be set for all individually reported A-MSDU subframes except the last one. This ensures the last_seq_ctrl is updated after the last subframe is processed. If an A-MSDU is actually a duplicate transmission all reported subframes will be properly discarded. Signed-off-by:
Michal Kazior <michal.kazior@tieto.com> [johannes: add braces that were missing even before] Signed-off-by:
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Fred Zhou authored
The authentication frame has a fixied size of 30 bytes (including header, algo num, trans seq num, and status) followed by a variable challenge text. Allocate using exact size, instead of over-allocation by sizeof(ieee80211_mgmt). Signed-off-by:
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Janusz Dziedzic authored
Add support for parsing and setting the dfs region (ETSI, FCC, JP) when the internal regulatory database is used. Before this the DFS region was being ignored even if present on the used db.txt Signed-off-by:
Janusz Dziedzic <janusz.dziedzic@tieto.com> Reviewed-by:
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Johannes Berg authored
This can be useful for drivers if they have any failure cases when joining an IBSS. Also move setting the queue parameters to before this new call, in case the new driver op needs them already. Signed-off-by: -
Eliad Peller authored
VHT_CAP_BEAMFORMER_ANTENNAS cap is actually defined in the draft as VHT_CAP_BEAMFORMEE_STS_MAX, and its size is 3 bits long. VHT_CAP_SOUNDING_DIMENSIONS is also 3 bits long. Fix the definitions and change the cap masking accordingly. Signed-off-by:
Eliad Peller <eliad@wizery.com> Signed-off-by:
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Eliad Peller authored
In some debugfs related functions snprintf was used while scnprintf should have been used instead. (blindly adding the return value of snprintf and supplying it to the next snprintf might result in buffer overflow when the input is too big) Signed-off-by:
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- 26 Sep, 2013 4 commits
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Simon Wunderlich authored
Signed-off-by:
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Simon Wunderlich authored
IBSS members may not immediately be able to send out their beacon when performing CSA, therefore also send a CSA action frame. Signed-off-by:
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Simon Wunderlich authored
This function adds the channel switch announcement implementation for the IBSS code. It is triggered by userspace (mac80211/cfg) or by external channel switch announcement, which have to be adopted. Both CSAs in beacons and action frames are supported. As for AP mode, the channel switch is applied after some time. However in IBSS mode, the channel switch IEs are generated in the kernel. Signed-off-by:
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Simon Wunderlich authored
IBSS CSA will require to disconnect if a channel switch fails, but mac80211 should search and re-connect after this disconnect. To allow such usage, split off the ibss disconnect process in a separate function which only performs the disconnect without overwriting nl80211-supplied parameters. Signed-off-by:
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