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* mac80211: add A-MSDU tx supportFelix Fietkau2016-04-061-0/+3
| | | | | | | | | | | | | | | Requires software tx queueing and fast-xmit support. For good performance, drivers need frag_list support as well. This avoids the need for copying data of aggregated frames. Running without it is only supported for debugging purposes. To avoid performance and packet size issues, the rate control module or driver needs to limit the maximum A-MSDU size by setting max_rc_amsdu_len in struct ieee80211_sta. Signed-off-by: Felix Fietkau <nbd@openwrt.org> [fix locking issue] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add fast-rx pathJohannes Berg2016-04-061-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The regular RX path has a lot of code, but with a few assumptions on the hardware it's possible to reduce the amount of code significantly. Currently the assumptions on the driver are the following: * hardware/driver reordering buffer (if supporting aggregation) * hardware/driver decryption & PN checking (if using encryption) * hardware/driver did de-duplication * hardware/driver did A-MSDU deaggregation * AP_LINK_PS is used (in AP mode) * no client powersave handling in mac80211 (in client mode) of which some are actually checked per packet: * de-duplication * PN checking * decryption and additionally packets must * not be A-MSDU (have been deaggregated by driver/device) * be data packets * not be fragmented * be unicast * have RFC 1042 header Additionally dynamically we assume: * no encryption or CCMP/GCMP, TKIP/WEP/other not allowed * station must be authorized * 4-addr format not enabled Some data needed for the RX path is cached in a new per-station "fast_rx" structure, so that we only need to look at this and the packet, no other memory when processing packets on the fast RX path. After doing the above per-packet checks, the data path collapses down to a pretty simple conversion function taking advantage of the data cached in the small fast_rx struct. This should speed up the RX processing, and will make it easier to reason about parallelizing RX (for which statistics will need to be per-CPU still.) Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* ieee80211: support parsing Fine Timing Measurement action frameAvraham Stern2016-04-051-0/+11
| | | | | | | | | Add definition for Fine Timing Measurement (FTM) frame format as defined in IEEE802.11-REVmcD5.0 section 9.6.8.33 Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: limit the A-MSDU Tx based on peer's capabilitiesEmmanuel Grumbach2016-02-241-0/+19
| | | | | | | | | | | | | | | | In VHT, the specification allows to limit the number of MSDUs in an A-MSDU in the Extended Capabilities IE. There is also a limitation on the byte size in the VHT IE. In HT, the only limitation is on the byte size. Parse the capabilities from the peer and make them available to the driver. In HT, there is another limitation when a BA agreement is active: the byte size can't be greater than 4095. This is not enforced here. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: process and save VHT MU-MIMO group frameSara Sharon2016-01-141-0/+7
| | | | | | | | | | | | | The Group ID Management frame is an Action frame of category VHT. It is transmitted by the AP to assign or change the user position of a STA for one or more group IDs. Process and save the group membership data. Notify underlying driver of changes. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* wireless: add WNM action frame categoriesJohannes Berg2015-10-131-0/+3
| | | | | | | Add the WNM and unprotected WNM categories and mark the latter as not robust. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* wireless: update robust action frame listJohannes Berg2015-10-131-0/+2
| | | | | | | Unprotected DMG and VHT action frames are not protected, reflect that in the list. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* net/ieee80211: ieee80211_is_* can be booleanYaowei Bai2015-10-091-38/+38
| | | | | | | | | | | This patch makes ieee80211_is_* return bool to improve readability due to these particular functions only using either one or zero as their return value. No functional change. Signed-off-by: Yaowei Bai <bywxiaobai@163.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* wireless: mark element IDs 8 and 9 reservedJohannes Berg2015-09-221-2/+1
| | | | | | | These were never used in the tree, and are marked as reserved in the IEEE 802.11 documentation (ANA). Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: allow to transmit A-MSDU within A-MPDUEmmanuel Grumbach2015-09-221-0/+1
| | | | | | | | | Advertise the capability to send A-MSDU within A-MPDU in the AddBA request sent by mac80211. Let the driver know about the peer's capabilities. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: fix BIT position for TDLS WIDE extended capEmmanuel Grumbach2015-08-141-1/+1
| | | | | | | | | The bit was not according to ieee80211 specification. Fix that. Reviewed-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80111: Add BIP-CMAC-256 cipherJouni Malinen2015-01-271-0/+9
| | | | | | | | | This allows mac80211 to configure BIP-CMAC-256 to the driver and also use software-implementation within mac80211 when the driver does not support this with hardware accelaration. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: Add new GCMP, CCMP-256, BIP-GMAC, BIP-CMAC-256 ciphersJouni Malinen2015-01-271-0/+18
| | | | | | | | | 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>
* mac80211: add parsing of TDLS specific IEsArik Nemtsov2014-11-191-0/+15
| | | | | | | | These are used in TDLS channel switching code. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg/mac80211: define TDLS channel switch feature bitArik Nemtsov2014-11-191-0/+6
| | | | | | | | | | | | Define some related TDLS protocol constants and advertise channel switch support in the extended-capabilities IE when the feature bit is defined. Actually supporting TDLS channel-switching also requires support for some new nl80211 commands, to be introduced by future patches. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add BSS coex IE to TDLS setup framesArik Nemtsov2014-11-191-0/+3
| | | | | | | | | Add the BSS coex IE in case we support HT40 channels, as mandated by section 8.5.13 in IEEE802.11 2012. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: retransmit TDLS teardown packet through AP if not ACKedLiad Kaufman2014-11-191-0/+25
| | | | | | | | | | | Since the TDLS peer station might not receive the teardown packet (e.g., when in PS), this makes sure the packet is retransmitted - this time through the AP - if the TDLS peer didn't ACK the packet. Signed-off-by: Liad Kaufman <liad.kaufman@intel.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* ieee80211: add "max length of AMPDU" enum for VHTEran Harary2014-11-041-1/+16
| | | | | | | | | Maximum length of AMPDU that an STA can receive in VHT. length = 2 ^ (13 + max_ampdu_length_exp) - 1. Signed-off-by: Eran Harary <eran.harary@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add extended channel switching capability if the driver supports CSALuciano Coelho2014-10-091-0/+5
| | | | | | | | | | | | | The Extended Channel Switching capability bit in the extended capabilities element must be set if the driver supports CSA on non-beaconing interfaces. Since this capability needs to be set during driver registration, the extended_capabiliities global variable needs to be moved to the local structure so that it can be modified. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: add WMM traffic stream APIJohannes Berg2014-09-111-0/+4
| | | | | | | | | | | | | Add nl80211 and driver API to validate, add and delete traffic streams with appropriate settings. The API calls for userspace doing the action frame handshake with the peer, and then allows only to set up the parameters in the driver. To avoid setting up a session only to tear it down again, the validate API is provided, but the real usage later can still fail so userspace must be prepared for that. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: support DTPC IE (from Cisco Client eXtensions)Steinar H. Gunderson2014-09-081-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | Linux already supports 802.11h, where the access point can tell the client to reduce its transmission power. However, 802.11h is only defined for 5 GHz, where the need for this is much smaller than on 2.4 GHz. Cisco has their own solution, called DTPC (Dynamic Transmit Power Control). Cisco APs on a controller sometimes but not always send 802.11h; they always send DTPC, even on 2.4 GHz. This patch adds support for parsing and honoring the DTPC IE in addition to the 802.11h element (they do not always contain the same limits, so both must be honored); the format is not documented, but very simple. Tested (on top of wireless.git and on 3.16.1) against a Cisco Aironet 1142 joined to a Cisco 2504 WLC, by setting various transmit power levels for the given access points and observing the results. The Wireshark 802.11 dissector agrees with the interpretation of the element, except for negative numbers, which seem to never happen anyway. Signed-off-by: Steinar H. Gunderson <sgunderson@bigfoot.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
* 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>
* ieee80211: Support parsing TPC report element in action framesAndrei Otcheretianski2014-08-261-0/+65
| | | | | | | | | | | | TPC report element is contained in spectrum management's tpc report action frames and in radio measurement's link measurement report action frames. Add a function which checks whether an action frame contains this element. This may be needed by the drivers in order to set the correct tx power value in these frames. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add TDLS QoS param IE on setup-confirmArik Nemtsov2014-07-211-0/+20
| | | | | | | | | | | | | When TDLS QoS is supported by the the peer and the local card, add the WMM parameter IE to the setup-confirm frame. Take the QoS settings from the current AP, or if unsupported, use the default values from the specification. This behavior is mandated by IEEE802.11-2012 section 10.22.4. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Reviewed-by: Liad Kaufman <liad.kaufman@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add API to request TDLS operation from userspaceArik Nemtsov2014-06-231-0/+3
| | | | | | | | Write a mac80211 to the cfg80211 API for requesting a userspace TDLS operation. Define TDLS specific reason codes that can be used here. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* wireless: add missing WLAN_EID_BSS_INTOLERANT_CHL_REPORTJes Sorensen2014-05-281-0/+1
| | | | | Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* Merge branch 'for-john' of ↵John W. Linville2014-03-201-0/+4
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
| * wireless: max MSDU size for DMG networksVladimir Kondratiev2014-03-191-0/+4
| | | | | | | | | | | | | | | | | | In the 802.11ad, aka DMG (Dynamic Multi-Gigabit), aka 60Ghz spec, maximum MSDU size extended to 7920 bytes. add #define for this. Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | ieee80211: remove function ieee80211_{dsss_chan_to_freq, freq_to_dsss_chan}Zhao, Gang2014-02-281-36/+0
|/ | | | | | | | | | | Function ieee80211_{dsss_chan_to_freq, freq_to_dsss_chan} have been replaced with ieee80211_{channel_to_frequency, frequency_to_channel}. There should be no users of the two functions now. So remove them. Cc: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Zhao, Gang <gamerh2o@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wireless: sort and extend element ID listJohannes Berg2014-02-051-64/+106
| | | | | | | | | The element ID list is currently almost sorted by amendment or similar topic, but the order is difficult to maintain and not very transparent. Sort the list by ID instead, and add a lot of missing IDs. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: fix bufferable MMPDU RX handlingJohannes Berg2014-02-041-0/+14
| | | | | | | | | | | | | | | Action, disassoc and deauth frames are bufferable, and as such don't have the PM bit in the frame control field reserved which means we need to react to the bit when receiving in such a frame. Fix this by introducing a new helper ieee80211_is_bufferable_mmpdu() and using it for the RX path that currently ignores the PM bit in any non-data frames for doze->wake transitions, but listens to it in all frames for wake->doze transitions, both of which are wrong. Also use the new helper in the TX path to clean up the code. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add length check in ieee80211_is_robust_mgmt_frame()Johannes Berg2014-02-041-2/+13
| | | | | | | | | | | A few places weren't checking that the frame passed to the function actually has enough data even though the function clearly documents it must have a payload byte. Make this safer by changing the function to take an skb and checking the length inside. The old version is preserved for now as the rtl* drivers use it and don't have a correct skb. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* ieee80211: add definition for SMS4 key lenAvinash Patil2014-01-101-0/+1
| | | | | | | | | Add SMS4 key length definition to ieee80211_key_len enum. It's used by WAPI. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* ieee80211: add definition for TDLS wide band extended capabilityAvinash Patil2014-01-101-0/+1
| | | | | | | | | Seventh bit of 8th byte of extended capabilities specifies wide bandwidth support for TDLS links. Add this definition to ieee80211. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: enable easier manipulation of VHT beamforming capsEyal Shapira2013-11-251-2/+6
| | | | | | | | | | | Introduce shift and mask defines for beamformee STS cap and number of sounding dimensions cap as these can take any 3 bit value. While at it also cleanup an unrequired parenthesis. Signed-off-by: Eyal Shapira <eyal@wizery.com> Reviewed-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>
* mac80211: process the CSA frame for mesh accordinglyChun-Yeow Yeoh2013-10-281-0/+20
| | | | | | | | | | | | | | | | | | Process the CSA frame according to the procedures define in IEEE Std 802.11-2012 section 10.9.8.4.3 as follow: * The mesh channel switch parameters element (MCSP) must be availabe. * If the MCSP's TTL is 1, drop the frame but still process the CSA. * If the MCSP's precedence value is less than or equal to the current precedence value, drop the frame and do not process the CSA. * The CSA frame is forwarded after TTL is decremented by 1 and the initiator field is set to 0. Transmit restrict field and others are maintained as is. * No beacon or probe response frame are handled here. Also, introduce the debug message used for mesh CSA purpose. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* ieee80211: fix vht cap definitionsEliad Peller2013-10-011-2/+2
| | | | | | | | | | | | VHT_CAP_BEAMFORMER_ANTENNAS cap is actually defined in the draft as VHT_CAP_BEAMFORMEE_STS_MAX, and its size is 3 bits long. VHT_CAP_SOUNDING_DIMENSIONS is also 3 bits long. Fix the definitions and change the cap masking accordingly. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* Merge branch 'master' of ↵John W. Linville2013-08-291-0/+4
|\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem Conflicts: drivers/net/wireless/iwlwifi/pcie/trans.c
| * wireless: make TU conversion macros availableJohannes Berg2013-08-061-0/+4
| | | | | | | | | | | | | | | | A few places in the code (mac80211 and iwlmvm) use the same TU_TO_JIFFIES() macro and could use TU_TO_EXP_TIME() that mac80211 has. Make these available to everyone and use them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | Merge branch 'master' of ↵John W. Linville2013-08-121-0/+9
|\| | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem Conflicts: drivers/net/ethernet/broadcom/Kconfig
| * ieee80211: add definition for 802.11ac information elementsFred Zhou2013-08-011-0/+4
| | | | | | | | | | | | | | | | Add element IDs for Extended BSS Load, VHT TX Power Envelope, AID, and Quiet Channel. Signed-off-by: Fred Zhou <fred.zy@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| * ieee80211: add definition for interworking supportAvinash Patil2013-08-011-0/+5
| | | | | | | | | | | | | | | | | | | | IEEE802.11u interworking support is advertised via extended capabilities IE bit 31. This is 7th bit of 4th byte of extended capabilities. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | include: Convert ethernet mac address declarations to use ETH_ALENJoe Perches2013-08-021-29/+30
|/ | | | | | | | | | | | It's convenient to have ethernet mac addresses use ETH_ALEN to be able to grep for them a bit easier and also to ensure that the addresses are __aligned(2). Add #include <linux/if_ether.h> as necessary. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* mac80211: set mesh formation field properlyJacob Minshall2013-06-031-0/+1
| | | | | | | | | Cap max peerings at 63 in accordance with IEEE-2012 8.4.2.100.7. Triggers a beacon regeneration every time the number of peerings changes. Previously this would only happen if the "accepting peerings" bit changed. Signed-off-by: Jacob Minshall <jacob@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* wireless: move crypto constants to ieee80211.hJohannes Berg2013-05-161-0/+9
| | | | | | | | mac80211 and the Intel drivers all define crypto constants, move them to ieee80211.h instead. Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: parse VHT channel switch IEsJohannes Berg2013-04-161-0/+10
| | | | | | | | | | | | | | VHT introduces multiple IEs that need to be parsed for a wide bandwidth channel switch. Two are (currently) needed in mac80211: * wide bandwidth channel switch element * channel switch wrapper element The former is contained in the latter for beacons and probe responses, but not for the spectrum management action frames so the IE parser needs a new argument to differentiate them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: handle extended channel switch announcementJohannes Berg2013-04-161-0/+6
| | | | | | | | | Handle the (public) extended channel switch announcement action frames. Parts of the data in these frames isn't really in IEs, but put it into the elems struct anyway to simplify the handling. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: support secondary channel offset in CSAJohannes Berg2013-04-161-0/+11
| | | | | | | | | | | | | | | Add support for the secondary channel offset IE in channel switch announcements. This is necessary for proper handling of CSA on HT access points. For this to work it is also necessary to convert everything here to use chandef structs instead of just channels. The driver updates aren't really correct though. In particular, the TI wl18xx driver update can't possibly be right since it just ignores the new channel width for lack of firmware API. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: support extended channel switchJohannes Berg2013-04-161-0/+12
| | | | | | | | | Support extended channel switch when the operating class is one of the global operating classes as defined in Annex E of 802.11-2012. If it isn't, disconnect from the AP instead. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: unify CSA action frame/beacon processingJohannes Berg2013-04-161-3/+1
| | | | | | | | | CSA action frame content should be processed as variable IEs rather than fixed to make it extensible. Unify the code and process them just like CSA in beacons to make it easier to extend for HT/VHT. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 13:00:24 +0000