- 04 1月, 2013 1 次提交
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由 Bob Copeland 提交于
One of the function names was wrong and some parameters were missing. Signed-off-by: NBob Copeland <me@bobcopeland.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 03 1月, 2013 39 次提交
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由 Johannes Berg 提交于
The following changes are invalid and should be disallowed when a station already exists: * supported rates changes, except for TDLS peers * listen interval changes * HT capability changes Disallow them and also update a mac80211 comment explaining how they would be racy. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
When an interface is configured to a 20 MHz channel and the device as well as the peer are 40 MHz capable the HT capabilities of the peer are not restricted to 20 MHz, even though they're supposed to be restricted to the currently possible capabilities. Unset the 40 MHz HT capability bits in this case. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Use __aligned(...) instead of __attribute__((aligned(...))) in mac80211 and cfg80211. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Support the HT notify channel width action frame to update the rate scaling about the bandwidth the peer can receive in. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Use __packed instead of __attribute__((packed)). Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
When TX aggregation is stopped, there are a few different cases: - connection with the peer was dropped - session stop was requested locally - session stop was requested by the peer - connection was dropped while a session is stopping The behaviour in these cases should be different, if the connection is dropped then the driver should drop all frames, otherwise the frames may continue to be transmitted, aggregated in the case of a locally requested session stop or unaggregated in the case of the peer requesting session stop. Split these different cases so that the driver can act accordingly; however, treat local and remote stop the same way and ask the driver to not send frames as aggregated packets any more. In the case of connection drop, the stop callback the driver is otherwise supposed to call is no longer required. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
To call it from ___ieee80211_stop_tx_ba_session, move the function and dependencies up. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Create the function ieee80211_remove_tid_tx to call it from ___ieee80211_stop_tx_ba_session later. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
The initiator/tx doesn't really identify why an aggregation session is stopped, give a reason for stopping that more clearly identifies what's going on. This will help tell the driver clearly what is expected of it. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Today, stations are added already associated. That is inefficient if, for example, the driver has no room for stations any more because then the station will go through the entire auth/assoc handshake, only to be kicked out afterwards. To address this a bit better, at least with drivers using the new station state callback, allow hostapd to add stations in unauthenticated mode, just after receiving the AUTH frame, before even replying. Thus if there's no more space at that point, it can send a negative auth frame back. It still needs to handle later state transition errors though, of course. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Some AP code ended up in mlme.c as ap.c didn't exist when it was written, move it now. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
In interoperability testing some APs showed bad behaviour if some of the VHT capabilities of the station are better than their own. Restrict the assoc request parameters - beamformee capabable, - RX STBC and - RX MCS set to the subset that the AP can support. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Luis R. Rodriguez 提交于
We should not add new beacon hints even if the wiphy is not world roaming. Without this we were always adding a beacon hint if not world roaming for every non world roaming wiphy interface. Tested-by: NBen Greear <greearb@candelatech.com> Reported-by: NBen Greear <greearb@candelatech.com> Reported-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> [fix locking] Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Luis R. Rodriguez 提交于
This will be used later by other code. This has no functional change. Tested-by: NBen Greear <greearb@candelatech.com> Reported-by: NBen Greear <greearb@candelatech.com> Reported-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Luis R. Rodriguez 提交于
Regulatory beacon hints are used to help with world roaming and as it is right now we learn from a beacon hint processed on one wiphy to all other wiphys. The processing of beacon hints however is scheduled and if we have a lot of interfaces we may hit the case that we'll queue a the same beacon hint many times until its processed. To avoid this do a lookup on the queued up beacon hints prior to adding a new beacon hint. If the beacon hint is removed from the pending reg beacon hint list then it would be processed and we'd ensure all wiphys would have learned from it, if its on the pending reg beacon list we'd now find it prior to it being processed. Tested-by: NBen Greear <greearb@candelatech.com> Reported-by: NBen Greear <greearb@candelatech.com> Reported-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Instead of checking every time bss_info_changed is called, assign the pointer once depending on the interface type and then leave it untouched until the interface type is changed. This makes the ieee80211_bss_info_change_notify() now a simple wrapper to call the driver only. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
The special case in the function isn't really needed, instead make the suspend code a bit better and also easier to understand and move the warning into the driver op wrapper inline. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
For AP/IBSS/mesh interfaces, call the driver to reconfigure bss_info_changed only if the interface was beaconing before suspend, otherwise we call the driver and it might interpret the change as going from enabled to disabled. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Instead of calculating in ieee80211_bss_info_change_notify() whether beaconing should be enabled or not, set it in the correct places in the callers. This simplifies the logic in this function at the expense of offchannel, but is also more robust. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
During suspend/resume channel contexts might be iterated even if they haven't been re-added to the driver, keep track of this and skip them in iteration. Also use the new status for sanity checks. Also clarify the fact that during HW restart all contexts are iterated over (thanks Eliad.) Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
When suspending, bss_info_changed() is called to disable beacons, but managed mode interfaces are simply removed (bss_info_changed() is called with "no change" only). This can lead to problems. To fix this and copy the BSS configuration, clear it during suspend and restore it on resume. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
It's a bit odd that there's a return value that only depends on the iftype, move that logic out of the function into the only caller that needs it. Also, since the quiescing could stop timers that trigger the sdata work, move the sdata work cancel into the function and after the actual quiesce. Finally, there's no need to call it on interfaces that are down, so don't. Change-Id: I1632d46d21ba3558ea713d035184f1939905f2f1 Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Emmanuel Grumbach 提交于
The probe response/beacon management frame RX code passes a bool parameter to differentiate beacons and probe responses. This is useless since we have the frame and can thus use its frame control field. Moreover it is buggy since there is one call to ieee80211_rx_bss_info with a beacon frame that is indicated as a probe response, which is also fixed by using the frame control field, so do that. Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
In that case, it's really a 160 MHz channel, so disallow this configuration. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
If there are VLANs, stopping an AP is inefficient as it calls rcu_barrier() once for each interface (the VLANs and the AP itself). Optimise this by moving rcu_barrier() out of the station cleanups and calling it only once for all interfaces combined. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Instead of returning an error and filling a pointer return the pointer and an ERR_PTR value in error cases. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
This will allow making freq_reg_info() lock-free. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
To simplify the locking and not require cfg80211_mutex (which nl80211 uses to access the global regdomain) and also to make it possible for drivers to access their wiphy->regd safely, use RCU to protect these pointers. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Instead of assigning after calling the function do it inside the function. This will later avoid a period of time where the pointer is NULL. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
The channel bandwidth handling isn't really quite right, it assumes that a 40 MHz channel is really two 20 MHz channels, which isn't strictly true. This is the way the regulatory database handling is defined right now though so remove the logic to handle other channel widths. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
There's a bug with the world regulatory domain, it can be updated any time which is different from all other regdomains that can only be updated once after a request for them. Fix this by adding a check for "processed" to the reg_is_valid_request() function and clear that when doing a request. While looking at this I also found another locking bug, last_request is protected by the reg_mutex not the cfg80211_mutex so the code in nl80211 is racy. Remove that code as it only tries to prevent an allocation in an error case, which isn't necessary. Then the function can also become static and locking in nl80211 can have a smaller scope. Also change __set_regdom() to do the checks earlier and not different for world/other regdomains. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
wiphy_apply_custom_regulatory() doesn't have to hold the regulatory mutex as it only modifies the given wiphy with the given regulatory domain, it doesn't access any global regulatory data. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Many places that currently check that cfg80211_mutex is held don't actually use any data protected by it. The functions that need to hold the cfg80211_mutex are the ones using the cfg80211_regdomain variable, so add the lock assertion to those and clarify this in the comments. The reason for this is that nl80211 uses the regdom without being able to hold reg_mutex. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
The function itself has dual-purpose: it can retrieve from a given regdomain or from the globally installed one. Change it to have a single purpose only: to look up from a given regdomain. Pass the correct regdomain in the freq_reg_info() function instead. This also changes the locking rules for it, no locking is required any more. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Even if it never happens and is hidden behind the debug config option, it's completely useless: the calltrace will only show module loading. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
toupper() only modifies lower-case letters, so the isalpha() check is redundant; remove it. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Use list_splice_tail_init() and also simplify the locking. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
This code is a bit too BUG_ON happy, remove all instances and while doing so make some code a bit smarter by passing the right pointer instead of indices into arrays. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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