- 25 7月, 2009 14 次提交
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由 Johannes Berg 提交于
With the internal 'pending' queue system in place, we can simply put packets there instead of pushing them off to the master dev, getting rid of the master interface completely. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Christian Lamparter 提交于
This patch fixes the following errors: driver-trace.h:148:1: error: cannot size expression driver-trace.h:148:1: error: cannot size expression [...] driver-trace.h:222:1: error: cannot size expression driver-trace.h:71:1: error: incompatible types for operation (<) driver-trace.h:71:1: left side has type void *<noident> driver-trace.h:71:1: right side has type int driver-trace.h:99:1: error: incompatible types for operation (<) driver-trace.h:99:1: left side has type void *<noident> driver-trace.h:99:1: right side has type int driver-trace.h:148:1: error: incompatible types for operation (<) driver-trace.h:148:1: left side has type void *<noident> driver-trace.h:148:1: right side has type int driver-trace.h:222:1: error: cannot size expression driver-trace.h:248:1: error: incompatible types for operation (<) driver-trace.h:248:1: left side has type void *<noident> driver-trace.h:248:1: right side has type int driver-trace.h:446:1: error: incompatible types for operation (<) driver-trace.h:446:1: left side has type void *<noident> driver-trace.h:446:1: right side has type int Signed-off-by: NChristian Lamparter <chunkeey@web.de> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Christian Lamparter 提交于
mac80211 constantly monitors the connection to the associated AP in order to check if it is out of reach/dead. This is absolutely fine most of the time. Except when there is a scheduled scan for the whole neighborhood. After all this path could trigger while scanning on different channel. Or even worse: this AP probing triggers a WARN_ON in rate_lowest_index when the scan code did a band transition! ( http://www.kerneloops.org/raw.php?rawid=449304 ) Reported-by: NLarry Finger <Larry.Finger@lwfinger.net> Signed-off-by: NChristian Lamparter <chunkeey@web.de> Tested-by: NLarry Finger <Larry.Finger@lwfinger.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Luis R. Rodriguez 提交于
All current rate control algorithms agree to send management and no-ack frames at the lowest rate. They also agree to do this when sta and the private rate control data is NULL. We add a hlper to mac80211 for this and simplify the rate control algorithm code. Developers wishing to make enhancements to rate control algorithms are for broadcast/multicast can opt to not use this in their gate_rate() mac80211 callback. Cc: Zhu Yi <yi.zhu@intel.com> Acked-by: NReinette Chatre <reinette.chatre@intel.com> Cc: ipw3945-devel@lists.sourceforge.net Cc: Gabor Juhos <juhosg@openwrt.org> Acked-by: NFelix Fietkau <nbd@openwrt.org> Cc: Derek Smithies <derek@indranet.co.nz> Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com> Signed-off-by: NLuis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Luis R. Rodriguez 提交于
Cc: Felix Fietkau <nbd@openwrt.org> Cc: Derek Smithies <derek@indranet.co.nz> Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com> Signed-off-by: NLuis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Luis R. Rodriguez 提交于
When we're associated we should be able to send data to target sta. If we cannot we may be trying to use the incorrect band to talk to the sta. Lets catch any such cases, warn, and drop the frames to not invalidate assumptions being made on rate control algorithms when they have a valid sta to communicate with. Any such cases should be handled and fixed. Signed-off-by: NLuis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
In "mac80211: monitor the connection" I forgot to add code to cancel the new timers & work when the interface is brought down, which isn't a problem if you just bring it down, but _is_ a problem when you destroy the interface. Correct this lapse. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
1) there's a spin_lock() that needs to be spin_lock_bh() 2) action frames of size 24 might cause an out-of-bounds memory access (for the 25th byte only, so no big deal) Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
With the recent MLME rework I accidentally removed the connection monitoring code. In order to add it back, this patch will add new code to monitor both for beacon loss and for the connection actually working, with possibly separate triggers. When no unicast frames have been received from the AP for (currently) two seconds, we will send the AP a probe request. Also, when we don't see beacons from the AP for two seconds, we do the same (but those times need not be the same due to the way the code is now written). Additionally, clean up the parameters to the ieee80211_set_disassoc() function that I need here, those are all useless except sdata. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
We have, sometimes, multiple things that want to run but don't have their own timer. Introduce a new function to mac80211's mlme run_again() that makes sure that the timer will run again at the _first_ needed time, use that function and also properly reprogram the timer once it fired. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
This reworks the key operation in cfg80211, and now only allows, from userspace, configuring keys (via nl80211) after the connection has been established (in managed mode), the IBSS been joined (in IBSS mode), at any time (in AP[_VLAN] modes) or never for all the other modes. In order to do shared key authentication correctly, it is now possible to give a WEP key to the AUTH command. To configure static WEP keys, these are given to the CONNECT or IBSS_JOIN command directly, for a userspace SME it is assumed it will configure it properly after the connection has been established. Since mac80211 used to check the default key in IBSS mode to see whether or not the network is protected, it needs an update in that area, as well as an update to make use of the WEP key passed to auth() for shared key authentication. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Javier Cardona 提交于
Assign next hop address to pending mesh frames once the path is resolved. Regression. Frames transmitted when a mesh path was wating to be resolved were being transmitted with an invalid Receiver Address. [Changes since v1] Suggested by Johannes: - Improved frame_queue traversal - Narower RCU scope Signed-off-by: NJavier Cardona <javier@cozybit.com> Signed-off-by: NAndrey Yurovsky <andrey@cozybit.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
This makes mac80211 use the event tracing framework to log all operations as given to the driver. This will need to be extended with more information, but as a start it should be good. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
ieee80211_testmode_cmd can very well be static. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 22 7月, 2009 3 次提交
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由 Javier Cardona 提交于
For forwarded frames, we save the precursor address in addr1 in case it needs to be used to send a Path Error. mesh_path_discard_frame, however, was using addr2 instead of addr1 to send Path Error frames, so correct that and also make the comment regarding this more clear. Signed-off-by: NAndrey Yurovsky <andrey@cozybit.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Pavel Roskin 提交于
The location of the 802.11 header is calculated incorrectly due to a wrong placement of parentheses. Found by kmemcheck. Signed-off-by: NPavel Roskin <proski@gnu.org> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
My kvm instance was complaining a lot about sleeping in atomic contexts in the mesh code, and it turns out that both mesh_path_add() and mpp_path_add() need to be able to sleep (they even use synchronize_rcu()!). I put in a might_sleep() to annotate that, but I see no way, at least right now, of actually making sure those functions are only called from process context since they are both called during TX and RX and the mesh code itself even calls them with rcu_read_lock() "held". Therefore, let's disable it completely for now. It's possible that I'm only seeing this because the hwsim's beaconing is broken and thus the peers aren't discovered right away, but it is possible that this happens even if beaconing is working, for a peer that doesn't exist or so. It should be possible to solve this by deferring the freeing of the tables to call_rcu() instead of using synchronize_rcu(), and also using atomic allocations, but maybe it makes more sense to rework the code to not call these from atomic contexts and defer more of the work to the workqueue. Right now, I can't work on either of those solutions though. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 11 7月, 2009 23 次提交
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由 Johannes Berg 提交于
Over time, a lot of locking issues have crept into the smarts of cfg80211, so e.g. scan completion can race against a new scan, IBSS join can race against leaving an IBSS, etc. Introduce a new per-interface lock that protects most of the per-interface data that we need to keep track of, and sprinkle assertions about that lock everywhere. Some things now need to be offloaded to work structs so that we don't require being able to sleep in functions the drivers call. The exception to that are the MLME callbacks (rx_auth etc.) that currently only mac80211 calls because it was easier to do that there instead of in cfg80211, and future drivers implementing those calls will, if they ever exist, probably need to use a similar scheme like mac80211 anyway... In order to be able to handle _deauth and _disassoc properly, introduce a cookie passed to it that will determine locking requirements. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
After the mac80211 mlme cleanup, we can require that the MLME functions in cfg80211 can sleep. This will simplify future work in cfg80211 a lot. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
The new key work for cfg80211 will only give us the WEP key for shared auth to do that authentication, and not via the regular key settings, so we need to be able to encrypt a single frame in software, and that without a key struct. Thus, refactor the WEP code to not require a key structure but use the key, len and idx directly. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
Sit tight. This shakes up the world as you know it. Let go of your spaghetti tongs, they will no longer be required, the horrible statemachine in net/mac80211/mlme.c is no more... With the cfg80211 SME mac80211 now has much less to keep track of, but, on the other hand, for FT it needs to be able to keep track of at least one authentication being in progress while associated. So convert from a single state machine to having small ones for all the different things we need to do. For real FT it will still need work wrt. PS, but this should be a good step. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
The ap_capab and last_probe struct members are unused. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
Since we don't really know that well in the kernel, let's let the SME control whether it wants to use reassociation or not, by allowing it to give the previous BSSID in the associate() parameters. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Helmut Schaa 提交于
mac80211's software scan implementation uses a passive dwell time of (HZ / 5) which means we stay 200ms on each passive channel. Compared to iwlwifi's hw scan and the old ipw* drivers which use values around 120ms this is quite long. Reducing the passive dwell time from 200ms to 125ms should save us something around a second on cards capable of 11a and we should still be able to catch beacons from most access points (assuming a ~100ms beacon interval). Signed-off-by: NHelmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
In order to avoid problems with BSS structs going away while they're in use, I've long wanted to make cfg80211 keep track of them. Without the SME, that wasn't doable but now that we have the SME we can do this too. It can keep track of up to four separate authentications and one association, regardless of whether it's controlled by the cfg80211 SME or the userspace SME. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
This function from mac80211 seems generally useful, and I will need it in cfg80211 soon. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
With mac80211 now always controlled by an external SME, a lot of code is dead -- SSID, BSSID, channel selection is always done externally, etc. Additionally, rename IEEE80211_STA_TKIP_WEP_USED to IEEE80211_STA_DISABLE_11N and clean up the code a bit. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
The automatic auth algorithm issue is now solved in cfg80211, so mac80211 no longer needs code to try different algorithms -- just using whatever cfg80211 asked for is good. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
The IEEE80211_STA_TKIP_WEP_USED flag is used internally to disable HT when WEP or TKIP are used. Now that cfg80211 is giving us the required information, we can set the flag appropriately again. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
By dropping the noise reporting, we can implement wireless stats in cfg80211. We also make the handler return NULL if we have no information, which is possible thanks to the recent wext change. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
For now, let's implement that using a very hackish way: simply mirror the wext API in the cfg80211 API. This will have to be changed later when we implement proper bitrate API. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
This implements siocsiwap/giwap for WDS mode. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
Just on/off and timeout, and with a hacky cfg80211 method until we figure out what we want, though this is probably sufficient as we want to use pm_qos for wifi everywhere. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
This adds code to make it possible to use the cfg80211 connect() API with wireless extensions, and because the previous patch added emulation of that API with auth() and assoc(), by extension also supports wext on that. At the same time, removes code from mac80211 for wext, but doesn't yet clean up mac80211's mlme code more. Signed-off-by: NSamuel Ortiz <samuel.ortiz@intel.com> Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Samuel Ortiz 提交于
This patch introduces the cfg80211 connect/disconnect API. The goal here is to run the AUTH and ASSOC steps in one call. This is needed for some fullmac cards that run both steps directly from the target, after the host driver sends a connect command. Additionally, all the new crypto parameters for connect() are now also valid for associate() -- although associate requires the IEs to be used, the information can be useful for drivers and should be given. Signed-off-by: NSamuel Ortiz <samuel.ortiz@intel.com> Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
The ieee80211_scan_results function hasn't existed for a long time now, so its declaration should be removed as well. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
This introduces a new NL80211_CMD_TESTMODE for testing and calibration use with nl80211. There's no multiplexing like like iwpriv had, and the command is not available by default, it needs to be explicitly enabled in Kconfig and shouldn't be enabled in most kernels. The command requires a wiphy index or interface index to identify the device to operate on, and the new TESTDATA attribute. There also is API for sending replies to the command, and testmode multicast messages (on a testmode multicast group). I've also updated mac80211 to be able to pass through the command to the driver, since it itself doesn't implement the testmode command. Additionally, to give people an idea of how to use the command, I've added a little code to hwsim that makes use of the new command to set the powersave mode, this is currently done via debugfs and should remain there, and the testmode command only serves as an example of how to use this best -- with nested netlink attributes in the TESTDATA attribute. A hwsim testmode tool can be found at http://git.sipsolutions.net/hwsim.git/. This tool is BSD licensed so people can easily use it as a basis for their own internal fabrication and validation tools. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
When the auth algorithm is rejected, but we don't have another one to try, we will eventually retry but that isn't useful -- we'll then do it again and again until we eventually give up. Instead, we should let the SME know and go into disabled state. The same applies for situations where the AP rejects with any other status code. Additionally, when trying the next auth algorithm, we should reset the auth_tries so that just a single lost frame doesn't lead to us giving up on the third auth algorithm. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
Instead of hardcoding GFP_ATOMIC everywhere, add a new function parameter that gets the flags from the caller. Obviously then I need to update all callers (all of them in mac80211), and it turns out that now it's ok to use GFP_KERNEL in almost all places. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
The key todo lock can be taken from different locks that require it to be _bh to avoid lock inversion due to (soft)irqs. This should fix the two problems reported by Bob and Gabor: http://mid.gmane.org/20090619113049.GB18956@hash.localnet http://mid.gmane.org/4A3FA376.8020307@openwrt.orgSigned-off-by: NJohannes Berg <johannes@sipsolutions.net> Cc: Bob Copeland <me@bobcopeland.com> Cc: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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