- 26 3月, 2013 1 次提交
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由 Karl Beldan 提交于
Drivers that don't use chanctxes cannot perform VHT association because they still use a "backward compatibility" pair of {ieee80211_channel, nl80211_channel_type} in ieee80211_conf and ieee80211_local. Signed-off-by: NKarl Beldan <karl.beldan@rivierawaves.com> [fix kernel-doc] Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 25 3月, 2013 1 次提交
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由 Johannes Berg 提交于
Instead of having an SKB all the time, use a beacon_data struct with just the information required. This also allows removing a synchronize_rcu() and using kfree_rcu() instead. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 19 3月, 2013 1 次提交
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由 Johannes Berg 提交于
Sometimes queues are flushed in the middle of operation, which can lead to driver issues. Stop queues temporarily, while flushing, to avoid transmitting new packets while they are being flushed. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 07 3月, 2013 1 次提交
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由 Johannes Berg 提交于
Make the TX bytes/packets counters race-free by keeping them per AC so concurrent TX on queues can't cause lost or wrong updates. This works since each station belongs to a single interface. While at it also make the bytes counters 64-bit. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 01 3月, 2013 1 次提交
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由 Marco Porsch 提交于
Introduced with de74a1d9 "mac80211: fix WPA with VLAN on AP side with ps-sta". Apparently overwrites the sdata pointer with non-valid data in the case of mesh. Fix this by checking for IFTYPE_AP_VLAN. Signed-off-by: NMarco Porsch <marco@cozybit.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 28 2月, 2013 1 次提交
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由 Tejun Heo 提交于
Convert to the much saner new idr interface. Signed-off-by: NTejun Heo <tj@kernel.org> Acked-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 27 2月, 2013 1 次提交
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由 Seth Forshee 提交于
Commit 6c17b77b (mac80211: Fix tx queue handling during scans) contains a bug that causes off-channel frames to get queued when they should be handed down to the driver for transmit. Prevent this from happening. Reported-by: NFabio Rossi <rossi.f@inwind.it> Signed-off-by: NSeth Forshee <seth.forshee@canonical.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 26 2月, 2013 2 次提交
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由 Chun-Yeow Yeoh 提交于
Unicast frame with unknown forwarding information always trigger the path discovery assuming destination is always located inside the MBSS. This patch allows the forwarding to look for mesh gate if path discovery inside the MBSS has failed. Reported-by: NCedric Voncken <cedric.voncken@acksys.fr> Signed-off-by: NChun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
The ieee80211_beacon_add_tim() function might be called by drivers with BHs enabled, which causes a potential deadlock if TX happens at the same time and attempts to lock the tim_lock as well. Use spin_lock_bh to fix it. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 15 2月, 2013 5 次提交
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由 Johannes Berg 提交于
There's various code with strange indentation, questionable loop and locking constructs, etc. The bigger change is moving the "sdata" argument to the first argument of all functions, like all other mac80211 functions that have one. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Thomas Pedersen 提交于
Previously, the entire mesh beacon would be generated each time the beacon timer fired. Instead generate a beacon head and tail (so the TIM can easily be inserted when mesh power save is on) when starting a mesh or the MBSS parameters change. Also add a mutex for protecting beacon updates and preventing leaks. Signed-off-by: NThomas Pedersen <thomas@cozybit.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
There's no need to use _irqsave() as the lock is never used in interrupt context. This also fixes a problem in the iwlwifi MVM driver that calls spin_unlock_bh() within its set_tim() callback. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
In my commit 1672c0e3 ("mac80211: start auth/assoc timeout on frame status") I broke auth/assoc timeout handling: in case we wait for the TX status, it now leaves the timeout field set to 0, which is a valid time and can compare as being before now ("jiffies"). Thus, if the work struct runs for some other reason, the auth/assoc is treated as having timed out. Fix this by introducing a separate "timeout_started" variable that tracks whether the timeout has started and is checked before timing out. Additionally, for proper TX status handling the change requires that the skb->dev pointer is set up for all the frames, so set it up for all frames in mac80211. Reported-by: NWojciech Dubowik <Wojciech.Dubowik@neratec.com> Tested-by: NWojciech Dubowik <Wojciech.Dubowik@neratec.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Michael Braun 提交于
When sending a broadcast while at least on of the connected stations is sleeping, it gets queued and send after a DTIM beacon is sent. If the packet was to be sent on a vlan interface, the vif used for dequeing from the per-bss queue does not hold the per-vlan sdata. The correct sdata is required to use the correct per-vlan broadcast/multicast key. This patch fixes this by restoring the per-vlan sdata using the skb->dev entry. Signed-off-by: NMichael Braun <michael-dev@fami-braun.de> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 12 2月, 2013 1 次提交
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由 Seth Forshee 提交于
Scans currently work by stopping the netdev tx queues but leaving the mac80211 queues active. This stops the flow of incoming packets while still allowing mac80211 to transmit nullfunc and probe request frames to facilitate scanning. However, the driver may try to wake the mac80211 queues while in this state, which will also wake the netdev queues. To prevent this, add a new queue stop reason, IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL, to be used when stopping the tx queues for off-channel operation. This prevents the netdev queues from waking when a driver wakes the mac80211 queues. This also stops all frames from being transmitted, even those meant to be sent off-channel. Add a new tx control flag, IEEE80211_TX_CTL_OFFCHAN_TX_OK, which allows frames to be transmitted when the queues are stopped only for the off-channel stop reason. Update all locations transmitting off-channel frames to use this flag. Signed-off-by: NSeth Forshee <seth.forshee@canonical.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 05 2月, 2013 2 次提交
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由 Marco Porsch 提交于
Add routines to - maintain a PS mode for each peer and a non-peer PS mode - indicate own PS mode in transmitted frames - track neighbor STAs power modes - buffer frames when neighbors are in PS mode - add TIM and Awake Window IE to beacons - release frames in Mesh Peer Service Periods Add local_pm to sta_info to represent the link-specific power mode at this station towards the remote station. When a peer link is established, use the default power mode stored in mesh config. Update the PS status if the peering status of a neighbor changes. Maintain a mesh power mode for non-peer mesh STAs. Set the non-peer power mode to active mode during peering. Authenticated mesh peering is currently not working when either node is configured to be in power save mode. Indicate the current power mode in transmitted frames. Use QoS Nulls to indicate mesh power mode transitions. For performance reasons, calls to the function setting the frame flags are placed in HWMP routing routines, as there the STA pointer is already available. Add peer_pm to sta_info to represent the peer's link-specific power mode towards the local station. Add nonpeer_pm to represent the peer's power mode towards all non-peer stations. Track power modes based on received frames. Add the ps_data structure to ieee80211_if_mesh (for TIM map, PS neighbor counter and group-addressed frame buffer). Set WLAN_STA_PS flag for STA in PS mode to use the unicast frame buffering routines in the tx path. Update num_sta_ps to buffer and release group-addressed frames after DTIM beacons. Announce the awake window duration in beacons if in light or deep sleep mode towards any peer or non-peer. Create a TIM IE similarly to AP mode and add it to mesh beacons. Parse received Awake Window IEs and check TIM IEs for buffered frames. Release frames towards peers in mesh Peer Service Periods. Use the corresponding trigger frames and monitor the MPSP status. Append a QoS Null as trigger frame if neccessary to properly end the MPSP. Currently, in HT channels MPSPs behave imperfectly and show large delay spikes and frame losses. Signed-off-by: NMarco Porsch <marco@cozybit.com> Signed-off-by: NIvan Bezyazychnyy <ivan.bezyazychnyy@gmail.com> Signed-off-by: NMike Krinkin <krinkin.m.u@gmail.com> Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
When we had a connection for WoWLAN and after resume it needed to be disconnected, the previous commit enabled sending a deauth frame to the AP. This frame would not go through on MFP-enabled networks as the key for it is marked tainted before the frame is transmitted. Allow a tainted key to be used for deauth frames. Worst case, we'll use a wrong key because the PTK was rekeyed while suspended, but more likely the PTK is still fine and the taint flag really only applies to the GTK(s). Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 25 1月, 2013 1 次提交
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由 Arnd Bergmann 提交于
gcc cannot prove that the value of sdata->vif.type does not change between the switch() statement and the second comparison to NL80211_IFTYPE_AP, causing a harmless warning. Slightly reordering the code makes the warning go away with no functional change. Without this patch, building ARM at91sam9g45_defconfig with gcc-4.6 results in: net/mac80211/tx.c: In function 'ieee80211_subif_start_xmit': net/mac80211/tx.c:1797:22: warning: 'chanctx_conf' may be used uninitialized in this function [-Wuninitialized] Signed-off-by: NArnd Bergmann <arnd@arndb.de> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 17 1月, 2013 1 次提交
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由 Marco Porsch 提交于
This functions will be used for mesh beacons, too. Signed-off-by: NMarco Porsch <marco@cozybit.com> [some formatting fixes] Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 16 1月, 2013 1 次提交
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由 Felix Fietkau 提交于
Channel contexts are not always used with monitor interfaces. If no channel context is set, use the oper channel, otherwise tx fails. Signed-off-by: NFelix Fietkau <nbd@openwrt.org> [check local->use_chanctx] Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 30 11月, 2012 1 次提交
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由 Johannes Berg 提交于
Instead of allocating a temporary buffer to build IEs build them right into the SKB. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 26 11月, 2012 1 次提交
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由 Johannes Berg 提交于
Convert mac80211 (and where necessary, some drivers a little bit) to the new channel definition struct. This will allow extending mac80211 for VHT, which is currently restricted to channel contexts since there are no drivers using that which makes it easier. As I also don't care about VHT for drivers not using the channel context API, I won't convert the previous API to VHT support. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 11 11月, 2012 1 次提交
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由 Felix Fietkau 提交于
Fixes more wifi status skb leaks, leading to hostapd/wpa_supplicant hangs. Signed-off-by: NFelix Fietkau <nbd@openwrt.org> Cc: stable@vger.kernel.org Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 08 11月, 2012 1 次提交
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由 Johannes Berg 提交于
One error path in ieee80211_subif_start_xmit() will double-free the SKB. Set it to NULL to prevent that. This issue was introduced by my channel context changes. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 19 10月, 2012 1 次提交
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由 Marco Porsch 提交于
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: NMarco Porsch <marco.porsch@etit.tu-chemnitz.de> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 18 10月, 2012 1 次提交
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由 Johannes Berg 提交于
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: NJohannes Berg <johannes.berg@intel.com>
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- 17 10月, 2012 1 次提交
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由 Johannes Berg 提交于
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: NEliad Peller <eliad@wizery.com> Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 09 10月, 2012 1 次提交
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由 Felix Fietkau 提交于
A few places free skbs using dev_kfree_skb even though they're called after ieee80211_subif_start_xmit might have cloned it for tracking tx status. Use ieee80211_free_txskb here to prevent skb leaks. Signed-off-by: NFelix Fietkau <nbd@openwrt.org> Cc: stable@vger.kernel.org Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 10 9月, 2012 1 次提交
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由 Johannes Berg 提交于
Mark keys that might be used to receive management frames so drivers can fall back on software crypto for them if they don't support hardware offload. As the new flag is only set correctly for RX keys and the existing IEEE80211_KEY_FLAG_SW_MGMT flag can only affect TX, also rename the latter to IEEE80211_KEY_FLAG_SW_MGMT_TX. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 22 8月, 2012 1 次提交
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由 Thomas Pedersen 提交于
The destination address of unicast frames forwarded through a mesh gate was being replaced with the broadcast address. Instead leave the original destination address as the mesh DA. If the nexthop address is not in the mpath table it will be resolved. If that fails, the frame will be forwarded to known mesh gates. Reported-by: NCedric Voncken <cedric.voncken@acksys.fr> Signed-off-by: NThomas Pedersen <thomas@cozybit.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 20 8月, 2012 3 次提交
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由 Johannes Berg 提交于
There's no need to carry around a return value that is always NETDEV_TX_OK anyway. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
In ieee80211_beacon_get_tim() we can use the txrc.sband instead of a separate local variable. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Eyal Shapira 提交于
This could take a while (100ms+) and may delay sending assoc resp in AP mode with WPS or P2P GO (as setting the probe resp takes place there). We've encountered situations where the delay was big enough to cause connection problems with devices like Galaxy Nexus. Switch to using call_rcu with a free handler. [Arik - rework to use plain buffer and instead of skb] Signed-off-by: NEyal Shapira <eyal@wizery.com> Signed-off-by: NArik Nemtsov <arik@wizery.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 31 7月, 2012 4 次提交
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由 Johannes Berg 提交于
Instead of memset(). Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Since we only need the band, remove the channel pointer from struct ieee80211_tx_data and also assign it properly, depending on context, to the correct operating or current channel. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
When sending probe requests, e.g. during software scanning, these will go out on the *current* channel, so their IEs need to be built from the current channel. At other times, e.g. for beacons or probe request templates, the IEs will be used on the *operating* channel and using the current channel instead might result in errors. Add the appropriate parameters to respect the difference. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Thomas Huehn 提交于
Remove the control.sta pointer from ieee80211_tx_info to free up sufficient space in the TX skb control buffer for the upcoming Transmit Power Control (TPC). Instead, the pointer is now on the stack in a new control struct that is passed as a function parameter to the drivers' tx method. Signed-off-by: NThomas Huehn <thomas@net.t-labs.tu-berlin.de> Signed-off-by: NAlina Friedrichsen <x-alina@gmx.net> Signed-off-by: NFelix Fietkau <nbd@openwrt.org> [reworded commit message] Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 12 7月, 2012 3 次提交
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由 Nicolas Cavallari 提交于
When drop_unencrypted is enabled and MFP is disabled, non-robust management frames for not-yet associated STA are dropped. This isn't visible as many management frames sent from the kernel have TX_INTFL_DONT_ENCRYPT set and management frames injected from a monitor vif have TX_CTL_INJECTED so aren't dropped. But management frames sent from userspace via NL80211_CMD_FRAME do not have this flag set, so are dropped. This patch make it always accept non-robust management frames. Signed-off-by: NNicolas Cavallari <cavallar@lri.fr> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
The "no key" case in key selection that decides whether to drop the frame or not is impossible to understand, restructure the code. Signed-off-by: NJohannes Berg <johannes.berg@intel.com> [cavallar@lri.fr: removed blank line and restructured action frame clause] Signed-off-by: NNicolas Cavallari <cavallar@lri.fr>
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由 Chun-Yeow Yeoh 提交于
This patch fixes the problem of unreachable mesh STA from Distribution System (DS) due to the introduction of previous patch solving the mesh STA joining from one MBSS to another MBSS. Reported-by: NGeorgiewskiy Yuriy <bottleman@icf.org.ru> Signed-off-by: NChun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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