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path: root/net/mac80211/spectmgmt.c
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2014-12-17mac80211: remove unused variable in ieee80211_parse_ch_switch_ie()Luciano Coelho
The ht_oper variable is assigned a value, but never used in ieee80211_parse_ch_switch_ie(). Remove it. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-10-29mac80211: use secondary channel offset IE also beacons during CSALuciano Coelho
If we are switching from an HT40+ to an HT40- channel (or vice-versa), we need the secondary channel offset IE to specify what is the post-CSA offset to be used. This applies both to beacons and to probe responses. In ieee80211_parse_ch_switch_ie() we were ignoring this IE from beacons and using the *current* HT information IE instead. This was causing us to use the same offset as before the switch. Fix that by using the secondary channel offset IE also for beacons and don't ever use the pre-switch offset. Additionally, remove the "beacon" argument from ieee80211_parse_ch_switch_ie(), since it's not needed anymore. Cc: stable@vger.kernel.org Reported-by: Jouni Malinen <j@w1.fi> Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-11-25mac80211: fix the mesh channel switch supportChun-Yeow Yeoh
Mesh STA receiving the mesh CSA action frame is not able to trigger the mesh channel switch due to the incorrect handling and comparison of mesh channel switch parameters element (MCSP)'s TTL. Make sure the MCSP's TTL is updated accordingly before calling the ieee80211_mesh_process_chnswitch. Also, we update the beacon before forwarding the CSA action frame, so MCSP's precedence value and initiator flag need to be updated prior to this. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-28mac80211: process mesh channel switching using beaconChun-Yeow Yeoh
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>
2013-10-28mac80211: refactor the parsing of chan switch ieChun-Yeow Yeoh
Refactor the channel switch IE parsing to reduce the number of function parameters. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-09-26mac80211: split off channel switch parsing functionSimon Wunderlich
The channel switch parsing function can be re-used for the IBSS code, put the common part into an extra function. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [also move/rename chandef_downgrade] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2011-09-13mac80211: Remove unnecessary OOM logging messagesJoe Perches
Removing unnecessary messages saves code and text. Site specific OOM messages are duplications of a generic MM out of memory message and aren't really useful, so just delete them. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-12-21mac80211: reduce reliance on netdevJohannes Berg
For bluetooth 3, we will most likely not have a netdev for a virtual interface (sdata), so prepare for that by reducing the reliance on having a netdev. This patch moves the name and address fields into the sdata struct and uses them from there all over. Some work is needed to keep them sync'ed, but that's not a lot of work and in slow paths anyway. In doing so, this also reduces the number of pointer dereferences in many places, because of things like sdata->dev->dev_addr becoming sdata->vif.addr. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-11-18mac80211: remove encrypt parameter from ieee80211_tx_skbJohannes Berg
Since the flags moved into skb->cb, there's no longer a need to have the encrypt bool passed into the function, anyone who requires it set to 0 (false) can just set the flag directly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-05-20mac80211: move channel switch codeJohannes Berg
The channel switch code is currently in the spectrum management file, where arguably it belongs. However, it is for managed mode only and uses the structures for that mode only so having it in a more generic file can be confusing. Additionally, my next patch gets simpler with the code here. When/if we ever implement this for IBSS or mesh then we will need to rework the structures it uses anyway at which point we could move the code back. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-04-22cfg80211: clean up includesJohannes Berg
Trying to separate header files into net/wireless.h and net/cfg80211.h has been a source of confusion. Remove net/wireless.h (because there also is the linux/wireless.h) and subsume everything into net/cfg80211.h -- except the definitions for regulatory structures which get moved to a new header net/regulatory.h. The "new" net/cfg80211.h is now divided into sections. There are no real changes in this patch but code shuffling and some very minor documentation fixes. I have also, to make things reflect reality, put in a copyright line for Luis to net/regulatory.h since that is probably exclusively written by him but was formerly in a file that only had my copyright line. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-27mac80211: split IBSS/managed codeJohannes Berg
This patch splits out the ibss code and data from managed (station) mode. The reason to do this is to better separate the state machines, and have the code be contained better so it gets easier to determine what exactly a given change will affect, that in turn makes it easier to understand. This is quite some churn, especially because I split sdata->u.sta into sdata->u.mgd and sdata->u.ibss, but I think it's easier to maintain that way. I've also shuffled around some code -- null function sending is only applicable to managed interfaces so put that into that file, some other functions are needed from various places so put them into util, and also rearranged the prototypes in ieee80211_i.h accordingly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-02-13mac80211: use cfg80211s BSS infrastructureJohannes Berg
Remove all the code from mac80211 to keep track of BSSes and use the cfg80211-provided code completely. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29mac80211: Handle power constraint level advertised in 11d+h beaconVasanthakumar Thiagarajan
This patch uses power constraint level while determining the maximum transmit power, there by it makes sure that any power mitigation requirement for the channel in the current regulatory domain is met. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29mac80211: 802.11w - Do not force Action frames to disable encryptionJouni Malinen
When sending out Action frames, allow ieee80211_tx_skb() to send them without enforcing do_not_encrypt. These frames will be encrypted if MFP has been negotiated. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-01-29mac80211: Add 802.11h CSA supportSujith
Move to the advertised channel on reception of a CSA element. This is needed for 802.11h compliance. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-11mac80211: move frame TX functionJohannes Berg
The ieee80211_sta_tx function isn't MLME code any more, it's getting used by a lot of code. Move it to utils and rename it to ieee80211_tx_skb. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-11mac80211: move spectrum management code outJohannes Berg
Like the HT code, this doesn't depend on the STA-mode implementation and can be handled entirely independently. There's only stub code for now, but when it gets filled having it in its own file will be beneficial. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>