- 13 1月, 2017 1 次提交
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由 Purushottam Kushwaha 提交于
This enhances the connect timeout API to also carry the reason for the timeout. These reason codes for the connect time out are represented by enum nl80211_timeout_reason and are passed to user space through a new attribute NL80211_ATTR_TIMEOUT_REASON (u32). Signed-off-by: NPurushottam Kushwaha <pkushwah@qti.qualcomm.com> Signed-off-by: NJouni Malinen <jouni@qca.qualcomm.com> [keep gfp_t argument last] Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 09 1月, 2017 1 次提交
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由 Andrzej Zaborowski 提交于
Disconnect or deauthenticate when the owning socket is closed if this flag is supplied to CMD_CONNECT or CMD_ASSOCIATE. This may be used to ensure userspace daemon doesn't leave an unmanaged connection behind. In some situations it would be possible to account for that, to some degree, in the deamon restart code or in the up/down scripts without the use of this attribute. But there will be systems where the daemon can go away for varying periods without a warning due to local resource management. Signed-off-by: NAndrew Zaborowski <andrew.zaborowski@intel.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 06 1月, 2017 1 次提交
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由 Rafał Miłecki 提交于
It is needed for another cfg80211 helper that will be out of reg.c so move it to common util.c file and make it non-static. Signed-off-by: NRafał Miłecki <rafal@milecki.pl> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 09 12月, 2016 1 次提交
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由 Johannes Berg 提交于
When mac80211 abandons an association attempt, it may free all the data structures, but inform cfg80211 and userspace about it only by sending the deauth frame it received, in which case cfg80211 has no link to the BSS struct that was used and will not cfg80211_unhold_bss() it. Fix this by providing a way to inform cfg80211 of this with the BSS entry passed, so that it can clean up properly, and use this ability in the appropriate places in mac80211. This isn't ideal: some code is more or less duplicated and tracing is missing. However, it's a fairly small change and it's thus easier to backport - cleanups can come later. Cc: stable@vger.kernel.org Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 18 11月, 2016 1 次提交
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由 Johannes Berg 提交于
It's possible to make scanning consume almost arbitrary amounts of memory, e.g. by sending beacon frames with random BSSIDs at high rates while somebody is scanning. Limit the number of BSS table entries we're willing to cache to 1000, limiting maximum memory usage to maybe 4-5MB, but lower in practice - that would be the case for having both full-sized beacon and probe response frames for each entry; this seems not possible in practice, so a limit of 1000 entries will likely be closer to 0.5 MB. Cc: stable@vger.kernel.org Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 27 10月, 2016 1 次提交
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由 Jouni Malinen 提交于
This adds defines and nl80211 extensions to allow FILS Authentication to be implemented similarly to SAE. FILS does not need the special rules for the Authentication transaction number and Status code fields, but it does need to add non-IE fields. The previously used NL80211_ATTR_SAE_DATA can be reused for this to avoid having to duplicate that implementation. Rename that attribute to more generic NL80211_ATTR_AUTH_DATA (with backwards compatibility define for NL80211_SAE_DATA). Also document the special rules related to the Authentication transaction number and Status code fiels. Signed-off-by: NJouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 13 10月, 2016 1 次提交
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由 Purushottam Kushwaha 提交于
This commit provides a mechanism for the host drivers to advertise the support for different beacon intervals among the respective interface combinations in a group, through NL80211_IFACE_COMB_BI_MIN_GCD (u32). This value will be compared against GCD of all beaconing interfaces of matching combinations. If the driver doesn't advertise this value, the old behaviour where all beacon intervals must be identical is retained. If it is specified, then any beacon interval for an interface in the interface combination as well as the GCD of all active beacon intervals in the combination must be greater or equal to this value. Signed-off-by: NPurushottam Kushwaha <pkushwah@qti.qualcomm.com> [change commit message, some variable names, small other things] Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 30 9月, 2016 2 次提交
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由 Ayala Beker 提交于
This allows user space to start/stop NAN interface. A NAN interface is like P2P device in a few aspects: it doesn't have a netdev associated to it. Add the new interface type and prevent operations that can't be executed on NAN interface like scan. Define several attributes that may be configured by user space when starting NAN functionality (master preference and dual band operation) Signed-off-by: NAndrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: NLuca Coelho <luciano.coelho@intel.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 David Spinadel 提交于
Add support for drivers that implement static WEP internally, i.e. expose connection keys to the driver in connect flow and don't upload the keys after the connection. Signed-off-by: NDavid Spinadel <david.spinadel@intel.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 14 9月, 2016 1 次提交
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由 Johannes Berg 提交于
After the previous patches, connect keys can only (correctly) be used for storing static WEP keys. Therefore, remove all the data for dealing with key index 4/5 and reduce the size of the key material to the maximum for WEP keys. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 06 7月, 2016 1 次提交
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由 Avraham Stern 提交于
Beacon report radio measurement requires reporting observed BSSs on the channels specified in the beacon request. If the measurement mode is set to passive or active, it requires actually performing a scan (passive or active, accordingly), and reporting the time that the scan was started and the time each beacon/probe was received (both in terms of TSF of the BSS of the requesting AP). If the request mode is table, this information is optional. In addition, the radio measurement request specifies the channel dwell time for the measurement. In order to use scan for beacon report when the mode is active or passive, add a parameter to scan request that specifies the channel dwell time, and add scan start time and beacon received time to scan results information. Supporting beacon report is required for Multi Band Operation (MBO). Signed-off-by: NAssaf Krauss <assaf.krauss@intel.com> Signed-off-by: NDavid Spinadel <david.spinadel@intel.com> Signed-off-by: NAvraham Stern <avraham.stern@intel.com> Signed-off-by: NLuca Coelho <luciano.coelho@intel.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 31 5月, 2016 1 次提交
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由 Jouni Malinen 提交于
Previously, the status parameter to cfg80211_connect_result() was documented as using WLAN_STATUS_UNSPECIFIED_FAILURE (1) when the real status code for the failure is not known. This value can be used by an AP (and often is) and as such, user space cannot distinguish between explicitly rejected authentication/association and not being able to even try to associate or not receiving a response from the AP. Add a new inline function, cfg80211_connect_timeout(), to be used when the driver knows that the connection attempt failed due to a reason where connection could not be attempt or no response was received from the AP. The internal functions now allow a negative status value (-1) to be used as an indication of this special case. This results in the NL80211_ATTR_TIMED_OUT to be added to the NL80211_CMD_CONNECT event to allow user space to determine this case was hit. For backwards compatibility, NL80211_STATUS_CODE with the value WLAN_STATUS_UNSPECIFIED_FAILURE is still indicated in the event in such a case. Signed-off-by: NJouni Malinen <jouni@qca.qualcomm.com> [johannes: fix cfg80211_connect_bss() prototype to use int for status, add cfg80211_connect_timeout() to docbook, fix docbook] Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 12 5月, 2016 2 次提交
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由 Johannes Berg 提交于
There's no harm in having drivers read the list, since they can use RCU protection or RTNL locking; allow this to not require each and every driver to also implement its own bookkeeping. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
The devlist_mtx mutex was removed about two years ago, in favour of just using RTNL/RCU protection. Remove the comment still referencing it. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 26 4月, 2016 1 次提交
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Since cfg80211 maintains separate BSS table entries for APs if the same BSSID, SSID pair is seen on multiple channels, it is possible that it can map the current_bss to a BSS entry on the wrong channel. This current_bss will not get flushed unless disconnected and cfg80211 reports a wrong channel as the associated channel. Fix this by introducing a new cfg80211_connect_bss() function which is similar to cfg80211_connect_result(), but it includes an additional parameter: the bss the STA is connected to. This allows drivers to provide the exact bss entry that matches the BSS to which the connection was completed. Reviewed-by: NJouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: NVidyullatha Kanchanapally <vkanchan@qti.qualcomm.com> Signed-off-by: NSunil Dutt <usdutt@qti.qualcomm.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 04 12月, 2015 1 次提交
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由 Michal Sojka 提交于
Last caller of this function was removed in 3.17 in commit 97dc94f1. Signed-off-by: NMichal Sojka <sojkam1@fel.cvut.cz> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 13 10月, 2015 1 次提交
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由 Dmitry Shmidt 提交于
For location and connectivity services, userspace would often like to know the time when the BSS was last seen. The current "last seen" value is calculated in a way that makes it less useful, especially if the system suspended in the meantime. Add the ability for the driver to report a real CLOCK_BOOTTIME stamp that can then be reported to userspace (if present). Drivers wishing to use this must be converted to the new API to call cfg80211_inform_bss_data() or cfg80211_inform_bss_frame_data(). They need to ensure the reported value is accurate enough even when the frame might have been buffered in the device (e.g. firmware.) Signed-off-by: NDmitry Shmidt <dimitrysh@google.com> [modified to use struct, inlines] Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 17 7月, 2015 1 次提交
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由 Johannes Berg 提交于
This callback is currently not allowed to sleep, which makes it more difficult to implement proper driver methods in mac80211 than it has to be. Instead of doing asynchronous work here in mac80211, make it possible for the callback to sleep by doing some asynchronous work in cfg80211. This also enables improvements to other drivers, like ath6kl, that would like to sleep in this callback. While at it, also fix the code to call the driver on the implicit unregistration when an interface is removed, and do that also when a P2P-Device wdev is destroyed (otherwise we leak the structs.) Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 26 5月, 2015 1 次提交
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由 Johannes Berg 提交于
When we disconnect from the AP, drivers call cfg80211_disconnect(). This doesn't know whether the disconnection was initiated locally or by the AP though, which can cause problems with the supplicant, for example with WPS. This issue obviously doesn't show up with any mac80211 based driver since mac80211 doesn't call this function. Fix this by requiring drivers to indicate whether the disconnect is locally generated or not. I've tried to update the drivers, but may not have gotten the values correct, and some drivers may currently not be able to report correct values. In case of doubt I left it at false, which is the current behaviour. For libertas, make adjustments as indicated by Dan Williams. Reported-by: NMatthieu Mauger <matthieux.mauger@intel.com> Tested-by: NMatthieu Mauger <matthieux.mauger@intel.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 18 12月, 2014 2 次提交
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由 Jukka Rissanen 提交于
An attribute NL80211_ATTR_SOCKET_OWNER can be set by the scan initiator. If present, the attribute will cause the scan to be stopped if the client dies. Signed-off-by: NJukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Jukka Rissanen 提交于
Because of possible races when accessing sched_scan_req pointer in rdev, the sched_scan_req is converted to RCU pointer. Signed-off-by: NJukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 17 12月, 2014 1 次提交
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由 Jonathan Doron 提交于
Add a new regulatory flag that allows a driver to manage regdomain changes/updates for its own wiphy. A self-managed wiphys only employs regulatory information obtained from the FW and driver and does not use other cfg80211 sources like beacon-hints, country-code IEs and hints from other devices on the same system. Conversely, a self-managed wiphy does not share its regulatory hints with other devices in the system. If a system contains several devices, one or more of which are self-managed, there might be contradictory regulatory settings between them. Usage of flag is generally discouraged. Only use it if the FW/driver is incompatible with non-locally originated hints. A new API lets the driver send a complete regdomain, to be applied on its wiphy only. After a wiphy-specific regdomain change takes place, usermode will get a new type of change notification. The regulatory core also takes care enforce regulatory restrictions, in case some interfaces are on forbidden channels. Signed-off-by: NJonathan Doron <jonathanx.doron@intel.com> Signed-off-by: NArik Nemtsov <arikx.nemtsov@intel.com> Reviewed-by: NLuis R. Rodriguez <mcgrof@suse.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 20 11月, 2014 1 次提交
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由 Luciano Coelho 提交于
Add a new WoWLAN API to enable net-detect as a wake up trigger. Net-detect allows the device to scan in the background while the host is asleep to wake up the host system when a matching network is found. Reuse the scheduled scan attributes to specify how the scan is performed while suspended and the matches that will trigger a wake event. Signed-off-by: NLuciano Coelho <luciano.coelho@intel.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 04 11月, 2014 1 次提交
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由 Rostislav Lisovy 提交于
This patch adds new iface type (NL80211_IFTYPE_OCB) representing the OCB (Outside the Context of a BSS) mode. When establishing a connection to the network a cfg80211_join_ocb function is called (particular nl80211_command is added as well). A mandatory parameters during the ocb_join operation are 'center frequency' and 'channel width (5/10 MHz)'. Changes done in mac80211 are minimal possible required to avoid many warnings (warning: enumeration value 'NL80211_IFTYPE_OCB' not handled in switch) during compilation. Full functionality (where needed) is added in the following patch. Signed-off-by: NRostislav Lisovy <rostislav.lisovy@fel.cvut.cz> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 23 6月, 2014 1 次提交
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由 Eliad Peller 提交于
MAX_JIFFY_OFFSET has no meaning when calculating the elapsed jiffies, as jiffies run out until ULONG_MAX. This miscalculation results in erroneous values in case of a wrap-around. Signed-off-by: NEliad Peller <eliad@wizery.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 06 5月, 2014 1 次提交
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由 Michal Kazior 提交于
This exports a new cfg80211_stop_iface() function. This is intended for driver internal interface combination management and channel switching. Due to locking issues (it re-enters driver) the call is asynchronous and uses cfg80211 event list/worker. Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 25 4月, 2014 2 次提交
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由 Zhao, Gang 提交于
Name wiphy_to_rdev is more accurate to describe what the function does, i.e., return a pointer pointing to struct cfg80211_registered_device. Signed-off-by: NZhao, Gang <gamerh2o@gmail.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Zhao, Gang 提交于
Name "dev" is too common and ambiguous, let all the pointer name pointing to struct cfg80211_registered_device be "rdev". This can improve code readability and consistency(since other places have already called it rdev). Signed-off-by: NZhao, Gang <gamerh2o@gmail.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 09 4月, 2014 3 次提交
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由 Luciano Coelho 提交于
Get rid of the cfg80211_can_add_interface() and cfg80211_can_change_interface() functions by moving that functionality to mac80211. With this patch all interface combination checks are now out of cfg80211 (except for the channel switch case which will be addressed in a future commit). Additionally, modify the ieee80211_check_combinations() function so that an undefined chandef can be passed, in order to use it before a channel is defined. Signed-off-by: NLuciano Coelho <luciano.coelho@intel.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Luciano Coelho 提交于
Move the counting part of the interface combination check from cfg80211 to mac80211. This is needed to simplify locking when the driver has to perform a combination check by itself (eg. with channel-switch). Signed-off-by: NLuciano Coelho <luciano.coelho@intel.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
When dynamically creating interfaces from userspace, e.g. for P2P usage, such interfaces are usually owned by the process that created them, i.e. wpa_supplicant. Should wpa_supplicant crash, such interfaces will often cease operating properly and cause problems on restarting the process. To avoid this problem, introduce an ownership concept for interfaces. If an interface is owned by a netlink socket, then it will be destroyed if the netlink socket is closed for any reason, including if the process it belongs to crashed. This gives us a race-free way to get rid of any such interfaces. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 20 3月, 2014 2 次提交
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由 Zhao, Gang 提交于
Macro ASSERT_RDEV_LOCK(rdev) is equal to ASSERT_RTNL(), so replace it with ASSERT_RTNL() and remove it. Signed-off-by: NZhao, Gang <gamerh2o@gmail.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Zhao, Gang 提交于
Function __cfg80211_join_ibss() is only used in net/wireless/ibss.c, so make it static. Signed-off-by: NZhao, Gang <gamerh2o@gmail.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 26 2月, 2014 2 次提交
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由 Ilan Peer 提交于
Commit "nl80211: send event when AP operation is stopped" added an event to notify user space that an AP interface has been stopped, to handle cases such as suspend etc. The event is sent regardless if the stop AP flow was triggered by user space or due to internal state change. This might cause issues with wpa_supplicant/hostapd flows that consider stop AP flow as a synchronous one, e.g., AP/GO channel change in the absence of CSA support. In such cases, the flow will restart the AP immediately after the stop AP flow is done, and only handle the stop AP event after the current flow is done, and as a result stop the AP again. Change the current implementation to only send the event in case the stop AP was triggered due to an internal reason. Signed-off-by: NIlan Peer <ilan.peer@intel.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Janusz Dziedzic 提交于
Send Channel Availability Check time as a parameter of start_radar_detection() callback. Get CAC time from regulatory database. Signed-off-by: NJanusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 06 2月, 2014 1 次提交
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由 Johannes Berg 提交于
Due to the previous commit, when a scan finishes, it is in theory possible to hit the following sequence: 1. interface starts being removed 2. scan is cancelled by driver and cfg80211 is notified 3. scan done work is scheduled 4. interface is removed completely, rdev->scan_req is freed, event sent to userspace but scan done work remains pending 5. new scan is requested on another virtual interface 6. scan done work runs, freeing the still-running scan To fix this situation, hang on to the scan done message and block new scans while that is the case, and only send the message from the work function, regardless of whether the scan_req is already freed from interface removal. This makes step 5 above impossible and changes step 6 to be 5. scan done work runs, sending the scan done message As this can't work for wext, so we send the message immediately, but this shouldn't be an issue since we still return -EBUSY. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 05 2月, 2014 2 次提交
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由 Michal Kazior 提交于
It was possible to break interface combinations in the following way: combo 1: iftype = AP, num_ifaces = 2, num_chans = 2, combo 2: iftype = AP, num_ifaces = 1, num_chans = 1, radar = HT20 With the above interface combinations it was possible to: step 1. start AP on DFS channel by matching combo 2 step 2. start AP on non-DFS channel by matching combo 1 This was possible beacuse (step 2) did not consider if other interfaces require radar detection. The patch changes how cfg80211 tracks channels - instead of channel itself now a complete chandef is stored. Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Antonio Quartulli 提交于
When receiving an IBSS_JOINED event select the BSS object based on the {bssid, channel} couple rather than the bssid only. With the current approach if another cell having the same BSSID (but using a different channel) exists then cfg80211 picks up the wrong BSS object. The result is a mismatching channel configuration between cfg80211 and the driver, that can lead to any sort of problem. The issue can be triggered by having an IBSS sitting on given channel and then asking the driver to create a new cell using the same BSSID but with a different frequency. By passing the channel to cfg80211_get_bss() we can solve this ambiguity and retrieve/create the correct BSS object. All the users of cfg80211_ibss_joined() have been changed accordingly. Moreover WARN when cfg80211_ibss_joined() gets a NULL channel as argument and remove a bogus call of the same function in ath6kl (it does not make sense to call cfg80211_ibss_joined() with a zero BSSID on ibss-leave). Cc: Kalle Valo <kvalo@qca.qualcomm.com> Cc: Arend van Spriel <arend@broadcom.com> Cc: Bing Zhao <bzhao@marvell.com> Cc: Jussi Kivilinna <jussi.kivilinna@iki.fi> Cc: libertas-dev@lists.infradead.org Acked-by: NKalle Valo <kvalo@qca.qualcomm.com> Signed-off-by: NAntonio Quartulli <antonio@open-mesh.com> [minor code cleanup in ath6kl] Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 06 12月, 2013 1 次提交
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由 Eliad Peller 提交于
___cfg80211_scan_done() can be called in some cases (e.g. on NETDEV_DOWN) before the low level driver notified scan completion (which is indicated by passing leak=true). Clearing rdev->scan_req in this case is buggy, as scan_done_wk might have already being queued/running (and can't be flushed as it takes rtnl()). If a new scan will be requested at this stage, the scan_done_wk will try freeing it (instead of the previous scan), and this will later result in a use after free. Simply remove the "leak" option, and replace it with a standard WARN_ON. An example backtrace after such crash: Unable to handle kernel paging request at virtual address fffffee5 pgd = c0004000 [fffffee5] *pgd=9fdf6821, *pte=00000000, *ppte=00000000 Internal error: Oops: 17 [#1] SMP ARM PC is at cfg80211_scan_done+0x28/0xc4 [cfg80211] LR is at __ieee80211_scan_completed+0xe4/0x2dc [mac80211] [<bf0077b0>] (cfg80211_scan_done+0x28/0xc4 [cfg80211]) [<bf0973d4>] (__ieee80211_scan_completed+0xe4/0x2dc [mac80211]) [<bf0982cc>] (ieee80211_scan_work+0x94/0x4f0 [mac80211]) [<c005fd10>] (process_one_work+0x1b0/0x4a8) [<c0060404>] (worker_thread+0x138/0x37c) [<c0066d70>] (kthread+0xa4/0xb0) Signed-off-by: NEliad Peller <eliad@wizery.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 03 12月, 2013 1 次提交
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由 Johannes Berg 提交于
Add support for vendor-specific commands to nl80211. This is intended to be used for really vendor-specific functionality that can't be implemented in a generic fashion for any reason. It's *NOT* intended to be used for any normal/generic feature or any optimisations that could be implemented across drivers. Currently, only vendor commands (with replies) are supported, no dump operations or vendor-specific notifications. Also add a function wdev_to_ieee80211_vif() to mac80211 which is needed for mac80211-based drivers wanting to implement any vendor commands. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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