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| * | nl80211: fix memory leak in monitor flags parsingJohannes Berg2015-02-241-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | If monitor flags parsing results in active monitor but that isn't supported, the already allocated message is leaked. Fix this by moving the allocation after this check. Reported-by: Christian Engelmayer <cengelma@gmx.at> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | nl80211: use loop index as type for net detect frequency resultsSamuel Tan2015-02-241-3/+1Star
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently add nested members of the NL80211_ATTR_SCAN_FREQUENCIES as NLA_U32 attributes of type NL80211_ATTR_WIPHY_FREQ in cfg80211_net_detect_results. However, since there can be an arbitrary number of frequency results, we should use the loop index of the loop used to add the frequency results to NL80211_ATTR_SCAN_FREQUENCIES as the type (i.e. nla_type) for each result attribute, rather than a fixed type. This change is in line with how nested members are added to NL80211_ATTR_SCAN_FREQUENCIES in the functions nl80211_send_wowlan_nd and nl80211_add_scan_req. Signed-off-by: Samuel Tan <samueltan@chromium.org> Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* / wireless: Use eth_<foo>_addr instead of memsetJoe Perches2015-03-031-2/+2
|/ | | | | | | Use the built-in function instead of memset. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'mac80211-next-for-davem-2015-02-03' of ↵David S. Miller2015-02-041-10/+21
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Last round of updates for net-next: * revert a patch that caused a regression with mesh userspace (Bob) * fix a number of suspend/resume related races (from Emmanuel, Luca and myself - we'll look at backporting later) * add software implementations for new ciphers (Jouni) * add a new ACPI ID for Broadcom's rfkill (Mika) * allow using netns FD for wireless (Vadim) * some other cleanups (various) Signed-off-by: David S. Miller <davem@davemloft.net>
| * nl80211: suppress smatch warningsJohannes Berg2015-01-231-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | smatch warns that we once checked request->ssids in two functions and then unconditionally used it later again. This is actually fine, because the code has a relationship between attrs[NL80211_ATTR_SCAN_SSIDS], n_ssids and request->ssids, but smatch isn't smart enough to realize that. Suppress the warnings by always checking just n_ssids - that way smatch won't know that request->ssids could be NULL, and since it is only NULL when n_ssids is 0 we still check everything correctly. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * nl80211: add an attribute to allow delaying the first scheduled scan cycleLuciano Coelho2015-01-231-0/+5
| | | | | | | | | | | | | | | | | | | | The userspace may want to delay the the first scheduled scan or net-detect cycle. Add an optional attribute to the scheduled scan configuration to pass the delay to be (optionally) used by the driver. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> [add the attribute to the policy to validate it] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * nl80211: Allow set network namespace by fdVadim Kochan2015-01-231-5/+11
| | | | | | | | | | | | | | | | Added new NL80211_ATTR_NETNS_FD which allows to set namespace via nl80211 by fd. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2015-01-281-5/+4Star
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/arm/boot/dts/imx6sx-sdb.dts net/sched/cls_bpf.c Two simple sets of overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | nl80211: fix per-station group key get/del and memory leakJohannes Berg2015-01-231-5/+4Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case userspace attempts to obtain key information for or delete a unicast key, this is currently erroneously rejected unless the driver sets the WIPHY_FLAG_IBSS_RSN flag. Apparently enough drivers do so it was never noticed. Fix that, and while at it fix a potential memory leak: the error path in the get_key() function was placed after allocating a message but didn't free it - move it to a better place. Luckily admin permissions are needed to call this operation. Cc: stable@vger.kernel.org Fixes: e31b82136d1ad ("cfg80211/mac80211: allow per-station GTKs") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | | Merge tag 'mac80211-next-for-davem-2015-01-19' of ↵David S. Miller2015-01-191-16/+29
|\ \ \ | | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Some further updates for net-next: * fix network-manager which was broken by the previous changes * fix delete-station events, which were broken by me making the genlmsg_end() mistake * fix a timer left running during suspend in some race conditions that would cause an annoying (but harmless) warning * (less important, but in the tree already) remove 80+80 MHz rate reporting since the spec doesn't distinguish it from 160 MHz; as the bitrate they're both 160 MHz bandwidth Signed-off-by: David S. Miller <davem@davemloft.net>
| * | cfg80211: fix checking nl80211_send_station() return valueJohannes Berg2015-01-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The return value from nl80211_send_station() is the length of the skb, or a negative error, so abort sending the message only when the return value was negative. This fixes the ibss_rsn wpa_supplicant test case. Reported-by: Jouni Malinen <j@w1.fi> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | cfg80211: change bandwidth reporting to explicit fieldJohannes Berg2015-01-151-12/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For some reason, we made the bandwidth separate flags, which is rather confusing - a single rate cannot have different bandwidths at the same time. Change this to no longer be flags but use a separate field for the bandwidth ('bw') instead. While at it, add support for 5 and 10 MHz rates - these are reported as regular legacy rates with their real bitrate, but tagged as 5/10 now to make it easier to distinguish them. In the nl80211 API, the flags are preserved, but the code now can also clearly only set a single one of the flags. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * | cfg80211: remove 80+80 MHz rate reportingJohannes Berg2015-01-151-3/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These rates are treated the same as 160 MHz in the spec, so it makes no sense to distinguish them. As no driver uses them yet, this is also not a problem, just remove them. In the userspace API the field remains reserved to preserve API and ABI. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | | netlink: make nlmsg_end() and genlmsg_end() voidJohannes Berg2015-01-181-9/+18
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | nl80211: send netdetect configuration info in NL80211_CMD_GET_WOWLANLuciano Coelho2015-01-141-0/+52
| | | | | | | | | | | | | | | | | | | | | | | | Send the netdetect configuration information in the response to NL8021_CMD_GET_WOWLAN commands. This includes the scan interval, SSIDs to match and frequencies to scan. Additionally, add the NL80211_WOWLAN_TRIG_NET_DETECT with NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | nl80211: support per-TID station statisticsJohannes Berg2015-01-081-0/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The base for the current statistics is pretty mixed up, support exporting RX/TX statistics for MSDUs per TID. This (currently) covers received MSDUs, transmitted MSDUs and retries/failures thereof. Doing it per TID for MSDUs makes more sense than say only per AC because it's symmetric - we could export per-AC statistics for all frames (which AC we used for transmission can be determined also for management frames) but per TID is better and usually data frames are really the ones we care about. Also, on RX we can't determine the AC - but we do know the TID for any QoS MPDU we received. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | cfg80211: add nl80211 beacon-only statisticsJohannes Berg2015-01-081-0/+2
| | | | | | | | | | | | | | | | | | | | Add these two values: * BEACON_RX: number of beacons received from this peer * BEACON_SIGNAL_AVG: signal strength average for beacons only These can then be used for Android Lollipop's statistics request. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | cfg80211: remove enum station_info_flagsJohannes Berg2015-01-081-85/+48Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This is really just duplicating the list of information that's already available in the nl80211 attribute, so remove the list. Two small changes are needed: * remove STATION_INFO_ASSOC_REQ_IES complete, but the length (assoc_req_ies_len) can be used instead * add NL80211_STA_INFO_RX_DROP_MISC which exists internally but not in nl80211 yet This gets rid of the duplicate maintenance of the two lists. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | cfg80211: allow including station info in delete eventJohannes Berg2015-01-081-22/+16Star
| | | | | | | | | | | | | | | | | | | | | | | | | | When a station is removed, its statistics may be interesting to userspace, for example for further aggregation of statistics of all stations that ever connected to an AP. Introduce a new cfg80211_del_sta_sinfo() function (and make the cfg80211_del_sta() a static inline calling it) to allow passing a struct station_info along with this, and send the data in the nl80211 event message. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | cfg80211: add scan time to survey dataJohannes Berg2015-01-081-0/+4
| | | | | | | | | | | | | | Add the time spent scanning to the survey data so it can be reported by drivers that collect such information. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | cfg80211: allow survey data to return global dataJohannes Berg2015-01-081-13/+18
| | | | | | | | | | | | | | | | | | Not all devices are able to report survey data (particularly time spent for various operations) per channel. As all these statistics already exist in survey data, allow such devices to report them (if userspace requested it) Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | cfg80211: remove "channel" from survey namesJohannes Berg2015-01-081-15/+15
| | | | | | | | | | | | | | | | | | All of the survey data is (currently) per channel anyway, so having the word "channel" in the name does nothing. In the next patch I'll introduce global data to the survey, where the word "channel" is actually confusing. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | Merge branch 'mac80211' into mac80211-nextJohannes Berg2015-01-071-1/+1
|\| | | | | | | | | | | | | Merge mac80211.git to get some changes that would otherwise cause conflicts with new changes coming here. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * nl80211: check matches array length before acessing itLuciano Coelho2014-12-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the userspace passes a malformed sched scan request (or a net detect wowlan configuration) by adding a NL80211_ATTR_SCHED_SCAN_MATCH attribute without any nested matchsets, a NULL pointer dereference will occur. Fix this by checking that we do have matchsets in our array before trying to access it. BUG: unable to handle kernel NULL pointer dereference at 0000000000000024 IP: [<ffffffffa002fd69>] nl80211_parse_sched_scan.part.67+0x6e9/0x900 [cfg80211] PGD 865c067 PUD 865b067 PMD 0 Oops: 0002 [#1] SMP Modules linked in: iwlmvm(O) iwlwifi(O) mac80211(O) cfg80211(O) compat(O) [last unloaded: compat] CPU: 2 PID: 2442 Comm: iw Tainted: G O 3.17.2 #31 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 task: ffff880013800790 ti: ffff880008d80000 task.ti: ffff880008d80000 RIP: 0010:[<ffffffffa002fd69>] [<ffffffffa002fd69>] nl80211_parse_sched_scan.part.67+0x6e9/0x900 [cfg80211] RSP: 0018:ffff880008d838d0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 000000000000143c RSI: 0000000000000000 RDI: ffff880008ee8dd0 RBP: ffff880008d83948 R08: 0000000000000002 R09: 0000000000000019 R10: ffff88001d1b3c40 R11: 0000000000000002 R12: ffff880019e85e00 R13: 00000000fffffed4 R14: ffff880009757800 R15: 0000000000001388 FS: 00007fa3b6d13700(0000) GS:ffff88003e200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000024 CR3: 0000000008670000 CR4: 00000000000006e0 Stack: ffff880009757800 ffff880000000001 0000000000000000 ffff880008ee84e0 0000000000000000 ffff880009757800 00000000fffffed4 ffff880008d83948 ffffffff814689c9 ffff880009757800 ffff880008ee8000 0000000000000000 Call Trace: [<ffffffff814689c9>] ? nla_parse+0xb9/0x120 [<ffffffffa00306de>] nl80211_set_wowlan+0x75e/0x960 [cfg80211] [<ffffffff810bf3d5>] ? mark_held_locks+0x75/0xa0 [<ffffffff8161a77b>] genl_family_rcv_msg+0x18b/0x360 [<ffffffff810bf66d>] ? trace_hardirqs_on+0xd/0x10 [<ffffffff8161a9d4>] genl_rcv_msg+0x84/0xc0 [<ffffffff8161a950>] ? genl_family_rcv_msg+0x360/0x360 [<ffffffff81618e79>] netlink_rcv_skb+0xa9/0xd0 [<ffffffff81619458>] genl_rcv+0x28/0x40 [<ffffffff816184a5>] netlink_unicast+0x105/0x180 [<ffffffff8161886f>] netlink_sendmsg+0x34f/0x7a0 [<ffffffff8105a097>] ? kvm_clock_read+0x27/0x40 [<ffffffff815c644d>] sock_sendmsg+0x8d/0xc0 [<ffffffff811a75c9>] ? might_fault+0xb9/0xc0 [<ffffffff811a756e>] ? might_fault+0x5e/0xc0 [<ffffffff815d5d26>] ? verify_iovec+0x56/0xe0 [<ffffffff815c73e0>] ___sys_sendmsg+0x3d0/0x3e0 [<ffffffff810a7be8>] ? sched_clock_cpu+0x98/0xd0 [<ffffffff810611b4>] ? __do_page_fault+0x254/0x580 [<ffffffff810bb39f>] ? up_read+0x1f/0x40 [<ffffffff810611b4>] ? __do_page_fault+0x254/0x580 [<ffffffff812146ed>] ? __fget_light+0x13d/0x160 [<ffffffff815c7b02>] __sys_sendmsg+0x42/0x80 [<ffffffff815c7b52>] SyS_sendmsg+0x12/0x20 [<ffffffff81751f69>] system_call_fastpath+0x16/0x1b Fixes: ea73cbce4e1f ("nl80211: fix scheduled scan RSSI matchset attribute confusion") Cc: stable@vger.kernel.org [3.15+] Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | nl80211: define multicast group names in headerJohannes Berg2015-01-061-6/+6
| | | | | | | | | | | | | | | | | | Put the group names into the userspace API header file so that userspace clients can use symbolic names from there instead of hardcoding the actual names. This doesn't really change much, but seems somewhat cleaner. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | cfg80211: add extensible feature flag attributeGautam Kumar Shukla2015-01-061-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | With the wiphy::features flag being used up this patch adds a new field wiphy::ext_features. Considering extensibility this new field is declared as a byte array. This extensible flag is exposed to user-space by NL80211_ATTR_EXT_FEATURES. Cc: Avinash Patil <patila@marvell.com> Signed-off-by: Gautam (Gautam Kumar) Shukla <gautams@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | nl80211: Stop scheduled scan if netlink client disappearsJukka Rissanen2014-12-181-0/+16
| | | | | | | | | | | | | | | | | | 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: Jukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | nl80211: Convert sched_scan_req pointer to RCU pointerJukka Rissanen2014-12-181-8/+11
| | | | | | | | | | | | | | | | Because of possible races when accessing sched_scan_req pointer in rdev, the sched_scan_req is converted to RCU pointer. Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | cfg80211: return private regdom for self-managed devicesArik Nemtsov2014-12-171-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | If a device has self-managed regulatory, insist on returning the wiphy specific regdomain if a wiphy-idx is specified. The global regdomain is meaningless for such devices. Also add an attribute for self-managed devices, so usermode can distinguish them as such. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Reviewed-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | cfg80211: allow wiphy specific regdomain managementJonathan Doron2014-12-171-18/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Jonathan Doron <jonathanx.doron@intel.com> Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Reviewed-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | cfg80211: allow usermode to query wiphy specific regdomArik Nemtsov2014-12-171-33/+140
|/ | | | | | | | | | | | | | | If a wiphy-idx is specified, the kernel will return the wiphy specific regdomain, if such exists. Otherwise return the global regdom. When no wiphy-idx is specified, return the global regdomain as well as all wiphy-specific regulatory domains in the system, via a new nested list of attributes. Add a new attribute for each wiphy-specific regdomain, for usermode to identify it as such. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: remove unneeded initialisations in nl80211_set_regJohannes Berg2014-11-281-3/+3
| | | | | | | Some variables are assigned unconditionally, remove their initialisations to help avoid introducing errors later. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* nl80211: don't crash sending invalid chandefJohannes Berg2014-11-271-1/+2
| | | | | | | | | One of the cases for an invalid channel definition is that the channel pointer is NULL, in which case the warning is a bit late since we'll dereference the pointer. Bail out of the function upon warning about this. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: clean up beacon loss CQM eventJohannes Berg2014-11-261-0/+23
| | | | | | | | | | Having it as a sub-event for RSSI thresholds is very ugly, but luckily no userspace actually uses the events yet. Move the event to its own function call internally and to its own event attribute in nl80211. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: refactor the various CQM event sending codeJohannes Berg2014-11-261-123/+99Star
| | | | | | | | | Much of the code can be shared by moving it into helper functions for the CQM event sending. Also move the code closer together, even in the header file. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: remove pointless channel lookup in survey codeJohannes Berg2014-11-251-5/+1Star
| | | | | | | | | | We have a channel pointer, and we use its center frequency to look up a channel pointer - which will thus be exactly the same as the original pointer. Remove that pointless lookup and just use the pointer. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* nl80211: Broadcast CMD_NEW_INTERFACE and CMD_DEL_INTERFACETomasz Bursztyka2014-11-191-7/+41
| | | | | | | | | Let the other listeners being notified when a new or del interface command has been issued, thus reducing later necessary request to be in sync with current context. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* nl80211: Replace interface socket owner attribute with more generic oneJukka Rissanen2014-11-191-2/+2
| | | | | | | | | Replace NL80211_ATTR_IFACE_SOCKET_OWNER attribute with more generic NL80211_ATTR_SOCKET_OWNER that can be used with other commands that interface creation. Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: protect fools returning NULL in add_virtual_intfRafał Miłecki2014-11-191-1/+4
| | | | | | | | | Callback add_virtual_intf is supposed to return ERR_PTR and trying to return NULL results in some "Unable to handle kernel paging request", etc. As it may be complicated to debug & trace, let's catch it (WARN). Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: allow drivers to support random MAC addresses for scanJohannes Berg2014-11-191-3/+83
| | | | | | | | | | | | | | Add the necessary feature flags and a scan flag to support using random MAC addresses for scan while unassociated. The configuration for this supports an arbitrary MAC address value and mask, so that any kind of configuration (e.g. fixed OUI or full 46-bit random) can be requested. Full 46-bit random is the default when no other configuration is passed. Also add a small helper function to use the addr/mask correctly. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: add wowlan net-detect supportLuciano Coelho2014-11-191-1/+110
| | | | | | | | | | | | | | 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: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: refactor nl80211_start_sched_scan so it can be reusedLuciano Coelho2014-11-191-58/+72
| | | | | | | | | For net detect, we will need to reuse most of the scheduled scan parsing function, but not all, so split out the attributes parsing part out of the main start sched_scan function. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: introduce TDLS channel switch commandsArik Nemtsov2014-11-191-0/+108
| | | | | | | | | | | | | Introduce commands to initiate and cancel TDLS channel-switching. Once TDLS channel-switching is started, the lower level driver is responsible for continually initiating channel-switch operations and returning to the base (AP) channel to listen for beacons from time to time. Upon cancellation of the channel-switch all communication between the relevant TDLS peers will continue on the base channel. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211/mac80211: allow any interface to send channel switch notificationsLuciano Coelho2014-11-101-6/+0Star
| | | | | | | | | | | | | | For multi-vif channel switches, we want to send NL80211_CMD_CH_SWITCH_NOTIFY to the userspace to let it decide whether other interfaces need to be moved as well. This is needed when we want a P2P GO interface to follow the channel of a station, for example. Modify the code so that all interfaces can send CSA notifications. Additionally, send notifications for STA CSA as well. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: add channel switch started notificationLuciano Coelho2014-11-101-3/+25
| | | | | | | | | | | | | | | | Add a new NL80211_CH_SWITCH_STARTED_NOTIFY message that can be sent to the userspace when a channel switch process has started. This allows userspace to take action, for instance, by requesting other interfaces to switch channel as necessary. This patch introduces a function that allows the drivers to send this notification. It should be used when the driver starts processing a channel switch initiated by a remote device (eg. when a STA receives a CSA from the AP) and when it successfully starts a userspace-triggered channel switch (eg. when hostapd triggers a channel swith in the AP). Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: fix nl80211 cmd id in nl80211_send_mpath()Henning Rogge2014-11-041-1/+1
| | | | | | | Netlink command for nl80211_send_mpath() should be NL80211_CMD_NEW_MPATH. Signed-off-by: Henning Rogge <henning.rogge@fkie.fraunhofer.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: 802.11p OCB mode handlingRostislav Lisovy2014-11-041-0/+39
| | | | | | | | | | | | | | | | | 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: Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: avoid using default in interface type switchJohannes Berg2014-10-311-1/+5
| | | | | | | | | Most code avoids having a default case in interface type switch statements already, to make it easier to find places that need to be extended. Change the code in the __cfg80211_leave() and nl80211_key_allowed() functions to not have a default case. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: fix set but not used warning in nl80211_channel_switch()Fabian Frederick2014-10-291-4/+1Star
| | | | | | | | radar_detect_width is unused since commit 97dc94f1d933 ("cfg80211: remove channel_switch combination check") Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: support configuring vif mac addr on createBen Greear2014-10-271-1/+3
| | | | | | | | | | | This is useful when creating virtual interfaces. Keeps udev from mucking with things it shouldn't, since the default MAC is never seen by udev when specified on the cmd-line during creation. Signed-off-by: Ben Greear <greearb@candelatech.com> [check for feature flag in nl80211 to force drivers to set it] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-16 19:15:56 +0200