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2016-02-24cfg80211: add support for non-linear skbs in ieee80211_amsdu_to_8023sFelix Fietkau
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24cfg80211: add function for 802.3 conversion with separate output bufferFelix Fietkau
Use skb_copy_bits in preparation for allowing fragmented skbs Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: move A-MSDU skb_linearize call to ieee80211_amsdu_to_8023sFelix Fietkau
Prepararation for zero-copy A-MSDU support with page fragment SKBs Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24cfg80211: Fix some linguistics in KconfigOla Olsson
Signed-off-by: Ola Olsson <ola.olsson@sonymobile.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24cfg80211: add more warnings for inconsistent opsOla Olsson
Print a warning whenever an expected callback function lacks implementation. Signed-off-by: Ola Olsson <ola.olsson@sonymobile.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-23cfg80211: stop critical protocol session upon disconnect eventArend van Spriel
When user-space has started a critical protocol session and a disconnect event occurs, the rdev::crit_prot_nlportid remains set. This caused a subsequent NL80211_CMD_CRIT_PROTO_START to fail (-EBUSY). Fix this by clearing the rdev attribute and call .crit_proto_stop() callback upon disconnect event. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-23nl80211: Zero out the connection keys memory when freeing them.Ola Olsson
The connection keys are zeroed out in all other cases except this one. Let's fix the last one as well. Signed-off-by: Ola Olsson <ola.olsson@sonymobile.com> Reviewed-by: Julian Calaby <julian.calaby@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-29cfg80211/wext: fix message orderingJohannes Berg
Since cfg80211 frequently takes actions from its netdev notifier call, wireless extensions messages could still be ordered badly since the wext netdev notifier, since wext is built into the kernel, runs before the cfg80211 netdev notifier. For example, the following can happen: 5: wlan1: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default link/ether 02:00:00:00:01:00 brd ff:ff:ff:ff:ff:ff 5: wlan1: <BROADCAST,MULTICAST,UP> link/ether when setting the interface down causes the wext message. To also fix this, export the wireless_nlevent_flush() function and also call it from the cfg80211 notifier. Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-29wext: fix message delay/orderingJohannes Berg
Beniamino reported that he was getting an RTM_NEWLINK message for a given interface, after the RTM_DELLINK for it. It turns out that the message is a wireless extensions message, which was sent because the interface had been connected and disconnection while it was deleted caused a wext message. For its netlink messages, wext uses RTM_NEWLINK, but the message is without all the regular rtnetlink attributes, so "ip monitor link" prints just rudimentary information: 5: wlan1: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default link/ether 02:00:00:00:01:00 brd ff:ff:ff:ff:ff:ff Deleted 5: wlan1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default link/ether 02:00:00:00:01:00 brd ff:ff:ff:ff:ff:ff 5: wlan1: <BROADCAST,MULTICAST,UP> link/ether (from my hwsim reproduction) This can cause userspace to get confused since it doesn't expect an RTM_NEWLINK message after RTM_DELLINK. The reason for this is that wext schedules a worker to send out the messages, and the scheduling delay can cause the messages to get out to userspace in different order. To fix this, have wext register a netdevice notifier and flush out any pending messages when netdevice state changes. This fixes any ordering whenever the original message wasn't sent by a notifier itself. Cc: stable@vger.kernel.org Reported-by: Beniamino Galvani <bgalvani@redhat.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-27lib80211: Use skcipher and ahashHerbert Xu
This patch replaces uses of blkcipher with skcipher and the long obsolete hash interface with ahash. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-01-14cfg80211/mac80211: use to_delayed_workGeliang Tang
Use to_delayed_work() instead of open-coding it. Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-14cfg80211: remove CFG80211_REG_DEBUGJohannes Berg
Instead of having this Kconfig option, which just *floods* the kernel log, * remove the per-channel prints that are fairly useless anyway * convert the conditional printing to pr_debug() Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-14regulatory: fix world regulatory domain dataJohannes Berg
The rule definitions here aren't really valid, they would be rejected if it came from userspace due to the bandwidth specified being bigger than the rule's width. This is fairly much inconsequential since the other rules around them do enable the bandwidth, but express that better using the NL80211_RRF_AUTO_BW flag. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-14wireless: change cfg80211 regulatory domain info as debug messagesDave Young
cfg80211 module prints a lot of messages like below. Actually printing once is acceptable but sometimes it will print again and again, it looks very annoying. It is better to change these detail messages to debugging only. cfg80211: World regulatory domain updated: cfg80211: DFS Master region: unset cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time) cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A) cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A) cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A) cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A) cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s) cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s) cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A) cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A) The changes in this patch is to replace pr_info with pr_debug in function print_rd_rules and print_regdomain_info Signed-off-by: Dave Young <dyoung@redhat.com> [change some pr_err() statements to at least keep the alpha2] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/geneve.c Here we had an overlapping change, where in 'net' the extraneous stats bump was being removed whilst in 'net-next' the final argument to udp_tunnel6_xmit_skb() was being changed. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15nl80211: Fix potential memory leak in nl80211_connectOla Olsson
Free cached keys if the last early return path is taken. Signed-off-by: Ola Olsson <ola.olsson@sonymobile.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-15nl80211: Fix potential memory leak in nl80211_set_wowlanOla Olsson
Compared to cfg80211_rdev_free_wowlan in core.h, the error goto label lacks the freeing of nd_config. Fix that. Signed-off-by: Ola Olsson <ola.olsson@sonymobile.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-15nl80211: fix a few memory leaks in reg.cOla Olsson
The first leak occurs when entering the default case in the switch for the initiator in set_regdom. The second leaks a platform_device struct if the platform registration in regulatory_init succeeds but the sub sequent regulatory hint fails due to no memory. Signed-off-by: Ola Olsson <ola.olsson@sonymobile.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04cfg80211: reg: Refactor calculation of bandwidth flagsMichal Sojka
The same piece of code appears at two places. Make a function from it. Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04cfg80211: handle add_station auth/assoc flag quirksJohannes Berg
When a new station is added to AP/GO interfaces the default behaviour is for it to be added authenticated and associated, due to backwards compatibility. To prevent that, the driver must be able to do that (setting the NL80211_FEATURE_FULL_AP_CLIENT_STATE feature flag) and userspace must set the flag mask to auth|assoc and clear the set. Handle this quirk in the API entirely in nl80211, and always push the full flags to the drivers. NL80211_FEATURE_FULL_AP_CLIENT_STATE is still required for userspace to be allowed to set the mask including those bits, but after checking that add both flags to the mask and set in case userspace didn't set them otherwise. This obsoletes the mac80211 code handling this difference, no other driver is currently using these flags. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04cfg80211: use NL80211_ATTR_STA_AID in nl82011_set_stationAyala Beker
Fix nl80211_set_station() to use the value of NL80211_ATTR_STA_AID attribute instead of NL80211_ATTR_PEER_AID attribute. Signed-off-by: Ayala Beker <ayala.beker@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04cfg80211: Add support for aborting an ongoing scanVidyullatha Kanchanapally
Implement new functionality for aborting an ongoing scan. Add NL80211_CMD_ABORT_SCAN to the nl80211 interface. After aborting the scan, driver shall provide the scan status by calling cfg80211_scan_done(). Reviewed-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Vidyullatha Kanchanapally <vkanchan@qti.qualcomm.com> Signed-off-by: Sunil Dutt <usdutt@qti.qualcomm.com> [change command to take wdev instead of netdev so that it can be used on p2p-device scans] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04cfg80211: Remove unused cfg80211_can_use_iftype_chan()Michal Sojka
Last caller of this function was removed in 3.17 in commit 97dc94f1d933c9df2c0b327066ea130c0e92083f. Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04cfg80211: reg: Remove unused function parameterMichal Sojka
Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04cfg80211: ocb: Fix null pointer deref if join_ocb is unimplementedOla Olsson
Signed-off-by: Ola Olsson <ola.olsson@sonymobile.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04lib80211: ratelimit key index mismatchJohannes Berg
This indicates a driver key selection issue, but even then there's no point in printing it all the time, so ratelimit it. Also remove the priv pointer from it -- people debugging will only have a single device anyway and it's useless as anything but a cookie. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04cfg80211: replace ieee80211_ie_split() with an inlineJohannes Berg
The function is a very simple wrapper around another one, just adds a few default parameters, so replace it with a static inline instead of using EXPORT_SYMBOL, reducing the module size slightly. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04cfg80211: add complete data to station add/change tracingJohannes Berg
Complete the tracepoint with the missing data - it's not printed by default (a lot of it is dynamic arrays) but will be recorded and be available during post-processing. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04cfg80211: Add missing tracing to cfg80211Ilan Peer
Add missing tracing for: 1. start_radar_detection() 2. set_mcast_rates() 3. set_coalesce() Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-11-03cfg80211: allow AID/listen interval changes for unassociated stationAyala Beker
Currently, cfg80211 rejects updates of AID and listen interval parameters for existing entries. This information is known only at association stage and as a result it's impossible to update entries that were added unassociated. Fix this by allowing updates of these properies for stations that the driver (or mac80211) assigned unassociated state. This then fixes mac80211's use of NL80211_FEATURE_FULL_AP_CLIENT_STATE. Signed-off-by: Ayala Beker <ayala.beker@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-11-03nl80211: Fix potential memory leak from parse_acl_dataOla Olsson
If parse_acl_data succeeds but the subsequent parsing of smps attributes fails, there will be a memory leak due to early returns. Fix that by moving the ACL parsing later. Cc: stable@vger.kernel.org Fixes: 18998c381b19b ("cfg80211: allow requesting SMPS mode on ap start") Signed-off-by: Ola Olsson <ola.olsson@sonymobile.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16cfg80211: reg: fix reg_ignore_cell_hint return typeJohannes Berg
The return type should be enum reg_request_treatment for both branches of the #ifdef. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16cfg80211: reg: reduce chan_reg_rule_print_dbg() ifdefJohannes Berg
The function is void and static, so just ifdef its contents instead of duplicating the declaration. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16cfg80211: reg: fix antenna gain in chan_reg_rule_print_dbg()Johannes Berg
Printing "N/A mBi" is strange - print just "N/A" instead. Also add a missing opening parenthesis. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16cfg80211: reg: centralize freeing ignored requestsJohannes Berg
Instead of having a lot of places that free ignored requests and then return REG_REQ_OK, make reg_process_hint() process REG_REQ_IGNORE by freeing the request, and let functions it calls return that instead of freeing. This also fixes a leak when a second (different) country IE hint was ignored. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16cfg80211: reg: clarify 'treatment' handling in reg_process_hint()Johannes Berg
This function can only deal with treatment values OK and ALREADY_SET so make the callees not return anything else and warn if they do. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16cfg80211: reg: rename reg_regdb_query() to reg_query_builtin()Johannes Berg
The new name better reflects the functionality. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-16cfg80211: reg: make CRDA support optionalJohannes Berg
If there's a built-in regulatory database, there may be little point in also calling out to CRDA and failing if the system is configured that way. Allow removing CRDA support to save ~1K kernel size. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-15cfg80211: reg: remove useless reg_timeout schedulingJohannes Berg
When the functions reg_set_rd_driver() and reg_set_rd_country_ie() return with an error, the calling function already restores data by calling restore_regulatory_settings(), so there's no need to also schedule a timeout (which would lead to other side effects such as indicating CRDA failed, which clearly isn't true.) Remove the scheduling. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-15cfg80211: reg: search built-in database directlyJohannes Berg
Instead of searching the built-in database only in the worker, search it directly and return an error if the entry cannot be found (or memory cannot be allocated.) This means that builtin database queries no longer rely on the timeout. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-15cfg80211: reg: rename reg_call_crda to reg_query_databaseJohannes Berg
The new name is more appropriate since in the case of a built-in database it may not really rely on CRDA. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-15cfg80211: reg: fix reg_call_crda() return value bugJohannes Berg
The function reg_call_crda() can't actually validly return REG_REQ_IGNORE as it does now when calling CRDA fails since that return value isn't handled properly. Fix that. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-15cfg80211: reg: remove useless non-NULL checkJohannes Berg
There's no way that the alpha2 pointer can be NULL, so no point in checking that it isn't. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-15cfg80211: fix gHz to GHzJohannes Berg
There's no "g" prefix, only "G" (1e9) that was clearly intended here. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-13cfg80211: Add multiple scan plans for scheduled scanAvraham Stern
Add the option to configure multiple 'scan plans' for scheduled scan. Each 'scan plan' defines the number of scan cycles and the interval between scans. The scan plans are executed in the order they were configured. The last scan plan will always run infinitely and thus defines only the interval between scans. The maximum number of scan plans supported by the device and the maximum number of iterations in a single scan plan are advertised to userspace so it can configure the scan plans appropriately. When scheduled scan results are received there is no way to know which scan plan is being currently executed, so there is no way to know when the next scan iteration will start. This is not a problem, however. The scan start timestamp is only used for flushing old scan results, and there is no difference between flushing all results received until the end of the previous iteration or the start of the current one, since no results will be received in between. Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-13nl80211: allow BSS data to include CLOCK_BOOTTIME timestampDmitry Shmidt
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: Dmitry Shmidt <dimitrysh@google.com> [modified to use struct, inlines] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-10-07Merge tag 'mac80211-next-for-davem-2015-10-05' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Johannes Berg says: ==================== For the current cycle, we have the following right now: * many internal fixes, API improvements, cleanups, etc. * full AP client state tracking in cfg80211/mac80211 from Ayala * VHT support (in mac80211) for mesh * some A-MSDU in A-MPDU support from Emmanuel * show current TX power to userspace (from Rafał) * support for netlink dump in vendor commands (myself) ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29cfg80211: allow changing station capabilities for unassociated stationsAyala Beker
Currently, cfg80211 rejects capability updates for existing entries and as a result it's impossible to update entries that were added unassociated, but that is necessary to go through the full station states from userspace, adding a station before authentication etc. Fix this by allowing updates to capabilities for stations that the driver (or mac80211) assigned unassociated state. Drivers setting the full station state support flag must use the new station type for proper operation. Signed-off-by: Ayala Beker <ayala.beker@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-09-29net/wireless: enable wiphy device to suspend/resume asynchronouslyFu, Zhonghui
Now, PM core supports asynchronous suspend/resume mode for devices during system suspend/resume, and the power state transition of one device may be completed in separate kernel thread. PM core ensures all power state transition timing dependency between devices. This patch enables wiphy device to suspend/resume asynchronously. This can take advantage of multicore and improve system suspend/resume speed. Signed-off-by: Zhonghui Fu <zhonghui.fu@linux.intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-09-22nl80211: put current TX power in interface infoRafał Miłecki
Many drivers implement reading current TX power (using either cfg80211 or ieee80211 op) but userspace can't get it using nl80211. Right now the only way to access it is to call some wext ioctl. Let's put TX power in interface info reply (callback is wdev specific) just like we do with current channel. To be consistent (e.g. NL80211_CMD_SET_WIPHY) let's use mBm as na unit. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>