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* mac80211: track master queue statusKalle Valo2008-12-19
| | | | | | | | | | | | | | This is a preparation for the dynamic power save support. In future there are two paths to stop the master queues and we need to track this properly to avoid starting queues incorrectly. Implement this by adding a status array for each queue. The original idea and design is from Johannes Berg, I just did the implementation based on his notes. All the bugs are mine, of course. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: enable IEEE80211_CONF_PS only when associatedKalle Valo2008-12-19
| | | | | | | | | | | | Also disable power save when disassociated. It makes no sense to have power save enabled while disassociated. iwlwifi seems to have this check in the driver, but it's better to do this in mac80211 instead. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: Fix HT channel selectionSujith2008-12-19
| | | | | | | | | | | | | HT management is done differently for AP and STA modes, unify to just the ->config() callback since HT is fundamentally a PHY property and cannot be per-BSS. Rename enum nl80211_sec_chan_offset as nl80211_channel_type to denote the channel type ( NO_HT, HT20, HT40+, HT40- ). Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: misc cleanupsRami Rosen2008-12-12
| | | | | | | | | | | | | | This patch removes unneeded member (skbuff) from ieee80211_ibss_add_sta() method in its declaration (in ieee80211_i.h) and its callers (in rx.c and mlme.c) This patch removes unneeded member from struct ieee80211_rx_data in ieee80211_i.h. (Originally posted as two patches. -- JWL) Signed-off-by: Rami Rosen <ramirose@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211: Add frequency configuration (including HT40)Jouni Malinen2008-12-05
| | | | | | | | | | This patch adds new NL80211_CMD_SET_WIPHY attributes NL80211_ATTR_WIPHY_FREQ and NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET to allow userspace to set the operating channel (e.g., hostapd for AP mode). 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>
* mac80211: remove SSID driver codeJohannes Berg2008-11-10
| | | | | | | | | | | | | Remove the SSID from the driver API since now there is no driver that requires knowing the SSID and I think it's unlikely that any hardware design that does require the SSID will play well with mac80211. This also removes support for setting the SSID in master mode which will require a patch to hostapd to not try. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Add nl80211 commands to get and set o11s mesh networking parameterscolin@cozybit.com2008-10-31
| | | | | | | | | | | | | | | | The two new commands are NL80211_CMD_GET_MESH_PARAMS and NL80211_CMD_SET_MESH_PARAMS. There is a new attribute enum, NL80211_ATTR_MESH_PARAMS, which enumerates the various mesh configuration parameters. Moved struct mesh_config from mac80211/ieee80211_i.h to net/cfg80211.h. nl80211_get_mesh_params and nl80211_set_mesh_params unpack the netlink messages and ask the driver to get or set the configuration. This is done via two new function stubs, get_mesh_params and set_mesh_params, in struct cfg80211_ops. Signed-off-by: Colin McCabe <colin@cozybit.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211/drivers: rewrite the rate control APIJohannes Berg2008-10-31
| | | | | | | | | | | | So after the previous changes we were still unhappy with how convoluted the API is and decided to make things simpler for everybody. This completely changes the rate control API, now taking into account 802.11n with MCS rates and more control, most drivers don't support that though. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: rewrite HT handlingJohannes Berg2008-10-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The HT handling has the following deficiencies, which I've (partially) fixed: * it always uses the AP info even if there is no AP, hence has no chance of working as an AP * it pretends to be HW config, but really is per-BSS * channel sanity checking is left to the drivers * it generally lets the driver control too much HT enabling is still wrong with this patch if you have more than one virtual STA mode interface, but that never happens currently. Once WDS, IBSS or AP/VLAN gets HT capabilities, it will also be wrong, see the comment in ieee80211_enable_ht(). Additionally, this fixes a number of bugs: * mac80211: ieee80211_set_disassoc doesn't notify the driver any more since the refactoring * iwl-agn-rs: always uses the HT capabilities from the wrong stuff mac80211 gives it rather than the actual peer STA * ath9k: a number of bugs resulting from the broken HT API I'm not entirely happy with putting the HT capabilities into struct ieee80211_sta as restricted to our own HT TX capabilities, but I see no cleaner solution for now. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: move bss_conf into vifJohannes Berg2008-10-31
| | | | | | | | | | Move bss_conf into the vif struct so that drivers can access it during ->tx without having to store it in the private data or similar. No driver updates because this is only for when they want to start using it. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: make retry limits part of hw configJohannes Berg2008-10-31
| | | | | | | | Instead of having a separate callback, use the HW config callback with a new flag to change retry limits. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: provide sequence numbersJohannes Berg2008-10-31
| | | | | | | | | | | | | | | I've come to think that not providing sequence numbers for the normal STA mode case was a mistake, at least two drivers now had to implement code they wouldn't otherwise need, and I believe at76_usb and adm8211 might be broken. This patch makes mac80211 assign a sequence number to all those frames that need one except beacons. That means that if a driver only implements modes that do not do beaconing it need not worry about the sequence number. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: introduce hw config change flagsJohannes Berg2008-10-31
| | | | | | | | | | | | | | This makes mac80211 notify the driver which configuration actually changed, e.g. channel etc. No driver changes, this is just plumbing, driver authors are expected to act on this if they want to. Also remove the HW CONFIG debug printk, it's incorrect, often we configure something else. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: kill hw.conf.antenna_sel_{rx,tx}Johannes Berg2008-10-31
| | | | | | | Never actually used. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* 802.11: clean up/fix HT supportJohannes Berg2008-10-31
| | | | | | | | | | | | | | | | | | | | This patch cleans up a number of things: * the unusable definition of the HT capabilities/HT information information elements * variable names that are hard to understand * mac80211: move ieee80211_handle_ht to ht.c and remove the unused enable_ht parameter * mac80211: fix bug with MCS rate 32 in ieee80211_handle_ht * mac80211: fix bug with casting the result of ieee80211_bss_get_ie to an information element _contents_ rather than the whole element, add size checking (another out-of-bounds access bug fixed!) * mac80211: remove some unused return values in favour of BUG_ON checking * a few minor other things Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: remove unused declaration of struct sta_attribute.Rami Rosen2008-10-31
| | | | | | | | | This patch removes unused definition of struct sta_attribute in net/mac80211/ieee80211_i.h. Signed-off-by: Rami Rosen <ramirose@gmail.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: fix HT information element parsingJohannes Berg2008-10-14
| | | | | | | | | | | There's no checking that the HT IEs are of the right length which can be used by an attacker to cause an out-of-bounds access by sending a too short HT information/capability IE. Fix it by simply pretending those IEs didn't exist when too short. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: clean up rate control APIJohannes Berg2008-09-24
| | | | | | | | | | | | | | | | | | Long awaited, hard work. This patch totally cleans up the rate control API to remove the requirement to include internal headers outside of net/mac80211/. There's one internal use in the PID algorithm left for mesh networking, we'll have to figure out a way to clean that one up and decide how to do the peer link evaluation, possibly independent of the rate control algorithm or via new API. Additionally, ath9k is left using the cross-inclusion hack for now, we will add new API where necessary to make this work properly, but right now I'm not expert enough to do it. It's still off better than before. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: make master iface not wirelessJohannes Berg2008-09-24
| | | | | | | | | | | | | | | | There's no need to register the master netdev with cfg80211, in fact, this is quite dangerous and lead to having to add checks for the master interface all over the config handlers. This patch removes the "ieee80211_ptr" from the master iface in favour of having a small netdev_priv() associated with the master interface that stores the ieee80211_local pointer. Because of this, a lot of code in the configuration handlers can go away. To make this patch easier to verify I have also removed a number of wiphy_priv() calls in favour of getting the sdata first and then the local pointer from that. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: remove beacon countersJohannes Berg2008-09-15
| | | | | | | | | | | | The beacon counters mac80211 keeps are only used for debugfs, unfortunately, they are incorrect for many hardware designs, namely any design that has a beacon template. Hence, remove the counters so we don't create the impression they are usable. This also allows removing the beacon MESH #ifdef again. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: move regular interface handlingJohannes Berg2008-09-15
| | | | | | | | Move the code to handle regular interfaces out of main.c and into iface.c, keep only the master interface stuff in main.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: use nl80211 interface typesJohannes Berg2008-09-15
| | | | | | | | | | There's really no reason for mac80211 to be using its own interface type defines. Use the nl80211 types and simplify the configuration code a bit: there's no need to translate them any more now. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: inform driver of basic ratesetJohannes Berg2008-09-15
| | | | | | | | Drivers need to know the basic rateset to be able to configure the ACK/CTS programming in hardware correctly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: clean up some commentsJohannes Berg2008-09-15
| | | | | | | | | Some comments refer to 80211.o or similar; also remove a comment about implementing fragments better, we really have better things to do. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: clean up scan namespaceJohannes Berg2008-09-15
| | | | | | | | | Most of the scan functions are called ieee80211_sta_scan_* or similar, make clean it up so they are all just called ieee80211_scan_*. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: make bridge_packets a virtual interface optionJohannes Berg2008-09-15
| | | | | | | | | | | | The bridge_packets configuration really should be per virtual interface (theoretically per AP/VLAN, but this is much easier); there currently is no way to set it yet though. Also invert the option to "NO_BRIDGE_PACKETS" so the default is to bridge. While at it, also document the flags properly. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: move ieee80211_set_freq to utilsJohannes Berg2008-09-15
| | | | | | | It really doesn't belong into the wireless extensions code. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: reorder MLME code moreJohannes Berg2008-09-15
| | | | | | | | | | This way all the utility functions are at the top, then the state machine and externally callable functions are moved to the bottom. Also clean up ieee80211_i.h a bit and add a few comments about which functions are called from where. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: split off mesh handling entirelyJohannes Berg2008-09-15
| | | | | | | | | | | | This patch splits off mesh handling from the STA/IBSS. Unfortunately it increases mesh code size a bit, but I think it makes things clearer. The patch also reduces per-interface run-time memory usage. Also clean up a few places where ifdef is not required. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: move frame TX functionJohannes Berg2008-09-11
| | | | | | | | | 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>
* mac80211: move spectrum management code outJohannes Berg2008-09-11
| | | | | | | | | | 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>
* mac80211: make BA session handling independent of STA modeJohannes Berg2008-09-11
| | | | | | | | | | | The aggregation handling isn't dependent on anything related to our STA-mode implementation, and doesn't need to depend on it for frame processing. This patch moves the relevant code to ht.c and adds a hook in rx.c. For now, the relevant action frames are only processed in STA/IBSS modes, but that's now something we can easily change. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: initialise queue QoS parameters at hw startJohannes Berg2008-09-11
| | | | | | | | | | When hardware is started it might be in a confused state with respect to queue QoS parameters. This patch changes mac80211 to set sane defaults right after the hardware is brought up. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: move BSS handling to scan codeJohannes Berg2008-09-11
| | | | | | | | | This moves all the BSS list handling out of mlme.c to scan.c, no further changes except fixing kzalloc/atomic_inc/atomic_inc to kzalloc/atomic_set(2). Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: refactor and move scan RX codeJohannes Berg2008-09-11
| | | | | | | | | | | | | | | This patch refactors some code and moves the scan RX function to scan.c. More importantly, however, it changes it so that the MLME's beacon/probe_resp functions aren't invoked when scanning so that we can remove a "if (scanning)" conditions from two places. There's a very slight behavioural change in this patch: now, when scanning, IBSS and mesh aren't updated even on the same channel. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: start moving scan code from mlmeJohannes Berg2008-09-11
| | | | | | | | | Here's a first patch to move some code from mlme.c to a new file called scan.c. The end result will hopefully be a more manageable mlme.c. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: use sdata pointer for scan interfaceJohannes Berg2008-09-11
| | | | | | | | | Since we now use sdata pointers most of the time, using a netdev pointer here is somewhat artificial, use an sdata pointer instead. Replace a netdev-prefix in a few messages by a wiphy-prefix. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge branch 'master' of ↵David S. Miller2008-09-08
|\ | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: net/mac80211/mlme.c
| * mac80211: Fix debugfs union misuse and pointer corruptionJouni Malinen2008-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | debugfs union in struct ieee80211_sub_if_data is misused by including a common default_key dentry as a union member. This ends occupying the same memory area with the first dentry in other union members (structures; usually drop_unencrypted). Consequently, debugfs operations on default_key symlinks and drop_unencrypted entry are using the same dentry pointer even though they are supposed to be separate ones. This can lead to removing entries incorrectly or potentially leaving something behind since one of the dentry pointers gets lost. Fix this by moving the default_key dentry to a new struct (common_debugfs) that contains dentries (more to be added in future) that are shared by all vif types. The debugfs union must only be used for vif type-specific entries to avoid this type of pointer corruption. 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>
* | Merge branch 'master' of ↵David S. Miller2008-08-30
|\| | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: net/mac80211/mlme.c
| * mac80211: Fix debugfs file add/del for netdevJouni Malinen2008-08-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previous version was using incorrect union structures for non-AP interfaces when adding and removing max_ratectrl_rateidx and force_unicast_rateidx entries. Depending on the vif type, this ended up in corrupting debugfs entries since the dentries inside different union structures ended up going being on top of eachother.. As the end result, debugfs files were being left behind with references to freed data (instant kernel oops on access) and directories were not removed properly when unloading mac80211 drivers. This patch fixes those issues by using only a single union structure based on the vif type. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: Handle scan result IEs in one blockJouni Malinen2008-08-29
| | | | | | | | | | | | | | | | | | | | | | | | Clean up and extend scan result processing by storing all the IEs from Beacon/Probe Response frames in a single block instead of allocating memory for each specific IE separately. This removes lot of unnecessary code and automatically supports reporting of new IEs (e.g., IEEE 802.11r) into user space without need to manually extend mac80211 scanning code whenever a new protocol adds IE(s). Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: add direct probe before associationRon Rindjunsky2008-08-22
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a direct probe request as first step in the association flow if data we have is not up to date. Motivation of this step is to make sure that the bss information we have is correct, since last scan could have been done a while ago, and beacons do not fully answer this need as there are potential differences between them and probe responses (e.g. WMM parameter element) Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: change number of pre-assoc scansRon Rindjunsky2008-08-22
| | | | | | | | | | | | | | | | | | | | | | | | This patch fixes noticed problem in noisy environments of 50+ APs that scan fails to find the requested AP on first try, which leads to connection refusal. second scan has empirically proven to fix this problem in almost all cases. Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com> Signed-off-by: Esti Kummer <ester.kummer@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: cleanup mlme state namespaceTomas Winkler2008-08-22
| | | | | | | | | | | | | | | | This patch move add STA_MLME to station mlme state defines. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | replace net_device arguments with ieee80211_{local,sub_if_data} as appropriateJasper Bryant-Greene2008-08-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch replaces net_device arguments to mac80211 internal functions with ieee80211_{local,sub_if_data} as appropriate. It also does the same for many 802.11s mesh functions, and changes the mesh path table to be indexed on sub_if_data rather than net_device. If the mesh part needs to be a separate patch let me know, but since mesh uses a lot of mac80211 functions which were being converted anyway, the changes go hand-in-hand somewhat. This patch probably does not convert all the functions which could be converted, but it is a large chunk and followup patches will be provided. Signed-off-by: Jasper Bryant-Greene <jasper@amiton.co.nz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | move ETH_P_PAE from ieee80211_i.h to if_ether.hJasper Bryant-Greene2008-08-22
| | | | | | | | | | | | | | | | | | ETH_P_PAE belongs in if_ether.h with the other ETH_P_* definitions. This patch moves it there. Signed-off-by: Jasper Bryant-Greene <jasper@amiton.co.nz> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: remove WLAN_FC_DATA_PRESENTHarvey Harrison2008-08-22
| | | | | | | | | | | | | | All users are gone now. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: remove rx/tx_data->fc memberHarvey Harrison2008-08-22
| | | | | | | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: remove IEEE80211_FC helperHarvey Harrison2008-08-22
|/ | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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