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* cfg80211: fix page refcount issue in A-MSDU decapFelix Fietkau2020-01-231-1/+1
| | | | | | | | | | | | | | | | | commit 81c044fc3bdc5b7be967cd3682528ea94b58c06a upstream. The fragments attached to a skb can be part of a compound page. In that case, page_ref_inc will increment the refcount for the wrong page. Fix this by using get_page instead, which calls page_ref_inc on the compound head and also checks for overflow. Fixes: 2b67f944f88c ("cfg80211: reuse existing page fragments in A-MSDU rx") Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@nbd.name> Link: https://lore.kernel.org/r/20200113182107.20461-1-nbd@nbd.name Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* cfg80211/mac80211: make ieee80211_send_layer2_update a public functionDedy Lansky2020-01-231-0/+45
| | | | | | | | | | | | | | | | commit 30ca1aa536211f5ac3de0173513a7a99a98a97f3 upstream. Make ieee80211_send_layer2_update() a common function so other drivers can re-use it. Signed-off-by: Dedy Lansky <dlansky@codeaurora.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com> [bwh: Backported to 4.9 as dependency of commit 3e493173b784 "mac80211: Do not send Layer 2 Update frame before authorization": - Retain type-casting of skb_put() return value - Adjust context] Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* cfg80211: Purge frame registrations on iftype changeDenis Kenzior2019-10-051-0/+1
| | | | | | | | | | | | | | | | | | | | | | | commit c1d3ad84eae35414b6b334790048406bd6301b12 upstream. Currently frame registrations are not purged, even when changing the interface type. This can lead to potentially weird situations where frames possibly not allowed on a given interface type remain registered due to the type switching happening after registration. The kernel currently relies on userspace apps to actually purge the registrations themselves, this is not something that the kernel should rely on. Add a call to cfg80211_mlme_purge_registrations() to forcefully remove any registrations left over prior to switching the iftype. Cc: stable@vger.kernel.org Signed-off-by: Denis Kenzior <denkenz@gmail.com> Link: https://lore.kernel.org/r/20190828211110.15005-1-denkenz@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* cfg80211: fix a type issue in ieee80211_chandef_to_operating_class()Dan Carpenter2018-10-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | [ Upstream commit 8442938c3a2177ba16043b3a935f2c78266ad399 ] The "chandef->center_freq1" variable is a u32 but "freq" is a u16 so we are truncating away the high bits. I noticed this bug because in commit 9cf0a0b4b64a ("cfg80211: Add support for 60GHz band channels 5 and 6") we made "freq <= 56160 + 2160 * 6" a valid requency when before it was only "freq <= 56160 + 2160 * 4" that was valid. It introduces a static checker warning: net/wireless/util.c:1571 ieee80211_chandef_to_operating_class() warn: always true condition '(freq <= 56160 + 2160 * 6) => (0-u16max <= 69120)' But really we probably shouldn't have been truncating the high bits away to begin with. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* cfg80211: Fix array-bounds warning in fragment copyMatthias Kaehlcke2018-04-081-3/+3
| | | | | | | | | | | | | | | | | commit aa1702dd162f420bf85ecef0c77686ef0dbc1496 upstream. __ieee80211_amsdu_copy_frag intentionally initializes a pointer to array[-1] to increment it later to valid values. clang rightfully generates an array-bounds warning on the initialization statement. Initialize the pointer to array[0] and change the algorithm from increment before to increment after consume. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Cc: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mac80211: strictly check mesh address extension modeRajkumar Manoharan2017-06-241-4/+6
| | | | | | | | | | | | | | | | | | | | | commit 5667c86acf021e6dcf02584408b4484a273ac68f upstream. Mesh forwarding path checks for address extension mode to fetch appropriate proxied address and MPP address. Existing condition that looks for 6 address format is not strict enough so that frames with improper values are processed and invalid entries are added into MPP table. Fix that by adding a stricter check before processing the packet. Per IEEE Std 802.11s-2011 spec. Table 7-6g1 lists address extension mode 0x3 as reserved one. And also Table Table 9-13 does not specify 0x3 as valid address field. Fixes: 9b395bc3be1c ("mac80211: verify that skb data is present") Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* cfg80211: add bitrate for 20MHz MCS 9Pedersen, Thomas2016-11-151-1/+2
| | | | | | | | | | | Some drivers (ath10k) report MCS 9 @ 20MHz, which technically isn't defined. To get more meaningful value than 0 out of this however, just extrapolate a bitrate from ratio of MCS 7 and 9 in channels where it is allowed. Signed-off-by: Thomas Pedersen <twp@qca.qualcomm.com> [add a comment about it in the code] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: add ability to check DA/SA in A-MSDU decapsulationJohannes Berg2016-10-121-2/+12
| | | | | | | | | | | We should not accept arbitrary DA/SA inside A-MSDUs, it could be used to circumvent protections, like allowing a station to send frames and make them seem to come from somewhere else. Add the necessary infrastructure in cfg80211 to allow such checks, in further patches we'll start using them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: let ieee80211_amsdu_to_8023s() take only header-less SKBJohannes Berg2016-10-121-19/+5
| | | | | | | | | There's only a single case where has_80211_header is passed as true, which is in mac80211. Given that there's only simple code that needs to be done before calling it, export that function from cfg80211 instead and let mac80211 call it itself. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: add add_nan_func / del_nan_funcAyala Beker2016-09-301-0/+22
| | | | | | | | | | | | | | A NAN function can be either publish, subscribe or follow up. Make all the necessary verifications and just pass the request to the driver. Allow the user space application that starts NAN to forbid any other socket to add or remove functions. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> 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>
* cfg80211: add start / stop NAN commandsAyala Beker2016-09-301-2/+4
| | | | | | | | | | | | | | | | | 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: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: Add support for static WEP in the driverDavid Spinadel2016-09-301-1/+1
| | | | | | | | | 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: David Spinadel <david.spinadel@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: reduce connect key caching struct sizeJohannes Berg2016-09-131-4/+1
| | | | | | | | | 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: Johannes Berg <johannes.berg@intel.com>
* cfg80211: validate key index betterJohannes Berg2016-09-131-1/+7
| | | | | | | | | Don't accept it if a key_idx < 0 snuck through, reject WEP keys with key index 4 and 5 (which are used for IGTKs) and don't allow IGTKs with key indices other than 4 and 5. This makes the key data match expectations better. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: identically validate beacon interval for AP/MESH/IBSSPurushottam Kushwaha2016-08-111-1/+1
| | | | | | | | | | | | Beacon interval interface combinations validation was missing for MESH/IBSS join, add those. Johannes: also move the beacon interval check disallowing really tiny and really big intervals into the common function, which adds it for AP mode. Signed-off-by: Purushottam Kushwaha <pkushwah@qti.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: handle failed skb allocationGregory Greenman2016-07-061-0/+2
| | | | | | | | | | Handle the case when dev_alloc_skb returns NULL. Cc: stable@vger.kernel.org Fixes: 2b67f944f88c2 ("cfg80211: reuse existing page fragments in A-MSDU rx") Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
* cfg80211: fix proto in ieee80211_data_to_8023 for frames without LLC headerFelix Fietkau2016-06-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | The PDU length of incoming LLC frames is set to the total skb payload size in __ieee80211_data_to_8023() of net/wireless/util.c which incorrectly includes the length of the IEEE 802.11 header. The resulting LLC frame header has a too large PDU length, causing the llc_fixup_skb() function of net/llc/llc_input.c to reject the incoming skb, effectively breaking STP. Solve the problem by properly substracting the IEEE 802.11 frame header size from the PDU length, allowing the LLC processor to pick up the incoming control messages. Special thanks to Gerry Rozema for tracking down the regression and proposing a suitable patch. Fixes: 2d1c304cb2d5 ("cfg80211: add function for 802.3 conversion with separate output buffer") Cc: stable@vger.kernel.org Reported-by: Gerry Rozema <gerryr@rozeware.com> Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
* mm/page_ref: use page_ref helper instead of direct modification of _countJoonsoo Kim2016-05-191-1/+1
| | | | | | | | | | | | | | | | page_reference manipulation functions are introduced to track down reference count change of the page. Use it instead of direct modification of _count. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Hugh Dickins <hughd@google.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Sunil Goutham <sgoutham@cavium.com> Cc: Chris Metcalf <cmetcalf@mellanox.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* cfg80211: make wdev_list accessible to driversJohannes Berg2016-05-121-2/+2
| | | | | | | | 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: Johannes Berg <johannes.berg@intel.com>
* cfg80211: Add option to report the bss entry in connect resultKanchanapally, Vidyullatha2016-04-261-1/+1
| | | | | | | | | | | | | | | | | | | 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: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Vidyullatha Kanchanapally <vkanchan@qti.qualcomm.com> Signed-off-by: Sunil Dutt <usdutt@qti.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: remove enum ieee80211_bandJohannes Berg2016-04-121-20/+20
| | | | | | | | | This enum is already perfectly aliased to enum nl80211_band, and the only reason for it is that we get IEEE80211_NUM_BANDS out of it. There's no really good reason to not declare the number of bands in nl80211 though, so do that and remove the cfg80211 one. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* wireless: use reset to set mac headerZhang Shengju2016-03-041-1/+1
| | | | | | | | | Since offset is zero, it's not necessary to use set function. Reset function is straightforward, and will remove the unnecessary add operation in set function. Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* cfg80211: reuse existing page fragments in A-MSDU rxFelix Fietkau2016-02-241-5/+77
| | | | | | | This massively reduces data copying and thus improves rx performance Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: fix faulty variable initialization in ieee80211_amsdu_to_8023sFelix Fietkau2016-02-241-1/+1
| | | | | | | | reuse_skb is set to true if the code decides to use the last segment. Fixes a memory leak Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: add support for non-linear skbs in ieee80211_amsdu_to_8023sFelix Fietkau2016-02-241-51/+49
| | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: add function for 802.3 conversion with separate output bufferFelix Fietkau2016-02-241-53/+53
| | | | | | | 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>
* mac80211: move A-MSDU skb_linearize call to ieee80211_amsdu_to_8023sFelix Fietkau2016-02-241-0/+3
| | | | | | | 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>
* cfg80211: Remove unused cfg80211_can_use_iftype_chan()Michal Sojka2015-12-041-114/+0
| | | | | | | | 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>
* cfg80211: replace ieee80211_ie_split() with an inlineJohannes Berg2015-12-041-7/+0
| | | | | | | | | 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>
* cfg80211: ignore netif running state when changing iftypeMichal Kazior2015-05-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It was possible for mac80211 to be coerced into an unexpected flow causing sdata union to become corrupted. Station pointer was put into sdata->u.vlan.sta memory location while it was really master AP's sdata->u.ap.next_beacon. This led to station entry being later freed as next_beacon before __sta_info_flush() in ieee80211_stop_ap() and a subsequent invalid pointer dereference crash. The problem was that ieee80211_ptr->use_4addr wasn't cleared on interface type changes. This could be reproduced with the following steps: # host A and host B have just booted; no # wpa_s/hostapd running; all vifs are down host A> iw wlan0 set type station host A> iw wlan0 set 4addr on host A> printf 'interface=wlan0\nssid=4addrcrash\nchannel=1\nwds_sta=1' > /tmp/hconf host A> hostapd -B /tmp/conf host B> iw wlan0 set 4addr on host B> ifconfig wlan0 up host B> iw wlan0 connect -w hostAssid host A> pkill hostapd # host A crashed: [ 127.928192] BUG: unable to handle kernel NULL pointer dereference at 00000000000006c8 [ 127.929014] IP: [<ffffffff816f4f32>] __sta_info_flush+0xac/0x158 ... [ 127.934578] [<ffffffff8170789e>] ieee80211_stop_ap+0x139/0x26c [ 127.934578] [<ffffffff8100498f>] ? dump_trace+0x279/0x28a [ 127.934578] [<ffffffff816dc661>] __cfg80211_stop_ap+0x84/0x191 [ 127.934578] [<ffffffff816dc7ad>] cfg80211_stop_ap+0x3f/0x58 [ 127.934578] [<ffffffff816c5ad6>] nl80211_stop_ap+0x1b/0x1d [ 127.934578] [<ffffffff815e53f8>] genl_family_rcv_msg+0x259/0x2b5 Note: This isn't a revert of f8cdddb8d61d ("cfg80211: check iface combinations only when iface is running") as far as functionality is considered because b6a550156bc ("cfg80211/mac80211: move more combination checks to mac80211") moved the logic somewhere else already. Fixes: f8cdddb8d61d ("cfg80211: check iface combinations only when iface is running") Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: properly send NL80211_ATTR_DISCONNECTED_BY_AP in disconnectJohannes Berg2015-05-261-1/+2
| | | | | | | | | | | | | | | | | | | | 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: Matthieu Mauger <matthieux.mauger@intel.com> Tested-by: Matthieu Mauger <matthieux.mauger@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: move IE split utilities here from mac80211Johannes Berg2015-04-071-0/+41
| | | | | | | As the next patch will require the IE splitting utility functions in cfg80211, move them there from mac80211. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg/mac80211: add regulatory classes IE during TDLS setupArik Nemtsov2015-03-301-0/+129
| | | | | | | | | | | | | | Seems Broadcom TDLS peers (Nexus 5, Xperia Z3) refuse to allow TDLS connection when channel-switching is supported but the regulatory classes IE is missing from the setup request. Add a chandef to reg-class translation function to cfg80211 and use it to add the required IE during setup. For now add only the current regulatory class as supported - it is enough to resolve the compatibility issue. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: add operating classes 128-130Eliad Peller2015-03-031-0/+1
| | | | | | | | | | | Operating classes 128-130 are defined in the 11ac spec for the 5GHz band. Update ieee80211_operating_class_to_band() to support them. Signed-off-by: Eliad Peller <eliadx.peller@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* Merge tag 'mac80211-next-for-davem-2015-02-03' of ↵David S. Miller2015-02-041-12/+56
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * cfg80211: Add new GCMP, CCMP-256, BIP-GMAC, BIP-CMAC-256 ciphersJouni Malinen2015-01-271-0/+36
| | | | | | | | | | | | | | | | | | This makes cfg80211 aware of the GCMP, GCMP-256, CCMP-256, BIP-GMAC-128, BIP-GMAC-256, and BIP-CMAC-256 cipher suites. These new cipher suites were defined in IEEE Std 802.11ac-2013. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * cfg80211: Fix BIP (AES-CMAC) cipher validationJouni Malinen2015-01-271-12/+20
| | | | | | | | | | | | | | | | | | | | | | This cipher can be used only as a group management frame cipher and as such, there is no point in validating that it is not used with non-zero key-index. Instead, verify that it is not used as a pairwise cipher regardless of the key index. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> [change code to use switch statement which is easier to extend] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2015-01-271-0/+6
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | mac80211: correct header length calculationFred Chou2015-01-231-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | HT Control field may also be present in management frames, as defined in 8.2.4.1.10 of 802.11-2012. Account for this in calculation of header length. Signed-off-by: Fred Chou <fred.chou.nd@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | | Merge tag 'mac80211-next-for-davem-2015-01-19' of ↵David S. Miller2015-01-191-6/+19
|\ \ \ | | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: change bandwidth reporting to explicit fieldJohannes Berg2015-01-151-5/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Berg2015-01-151-2/+1
| |/ | | | | | | | | | | | | | | | | | | | | 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>
* / net: rename vlan_tx_* helpers since "tx" is misleading thereJiri Pirko2015-01-131-2/+2
|/ | | | | | | The same macros are used for rx as well. So rename it. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* cfg80211: 802.11p OCB mode handlingRostislav Lisovy2014-11-041-1/+4
| | | | | | | | | | | | | | | | | 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: clear connect keys when freeing themJohannes Berg2014-09-111-1/+1
| | | | | | | When freeing the connect keys, clear the memory to avoid having the key material stick around in memory "forever". Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: add Intel Mobile Communications copyrightJohannes Berg2014-09-051-0/+1
| | | | | | | | | | | | | Our legal structure changed at some point (see wikipedia), but we forgot to immediately switch over to the new copyright notice. For files that we have modified in the time since the change, add the proper copyright notice now. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: implement cfg80211_get_station cfg80211 APIAntonio Quartulli2014-05-211-0/+18
| | | | | | | | | | | | Implement and export the new cfg80211_get_station() API. This utility can be used by other kernel modules to obtain detailed information about a given wireless station. It will be in particular useful to batman-adv which will implement a wireless rate based metric. Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: constify more pointers in the cfg80211 APIJohannes Berg2014-05-191-1/+2
| | | | | | | | | | This also propagates through the drivers. The orinoco driver uses the cfg80211 API structs for internal bookkeeping, and so needs a (void *) cast that removes the const - but that's OK because it allocates those pointers. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: allow restricting supported dfs regionsFelix Fietkau2014-05-131-0/+14
| | | | | | | | | | | At the moment, the ath9k/ath10k DFS module only supports detecting ETSI radar patterns. Add a bitmap in the interface combinations, indicating which DFS regions are supported by the detector. If unset, support for all regions is assumed. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: export interface stopping functionMichal Kazior2014-05-061-0/+3
| | | | | | | | | | | | | | 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: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-21 08:24:53 +0000