kernel/linux.git/include/net/mac80211.h, branch v5.17.9

mac80211: Add stations iterator where the iterator function may sleep

2022-01-04T14:47:15+00:00

ieee80211_iterate_active_interfaces() and ieee80211_iterate_active_interfaces_atomic() already exist, where the former allows the iterator function to sleep. Add ieee80211_iterate_stations() which is similar to ieee80211_iterate_stations_atomic() but allows the iterator to sleep. This is needed for adding SDIO support to the rtw88 driver. Some interators there are reading or writing registers. With the SDIO ops (sdio_readb, sdio_writeb and friends) this means that the iterator function may sleep. Signed-off-by: Martin Blumenstingl Link: https://lore.kernel.org/r/20211228211501.468981-2-martin.blumenstingl@googlemail.com Signed-off-by: Johannes Berg

cfg80211: rename offchannel_chain structs to background_chain to avoid confusion with ETSI standard

2021-12-20T09:37:36+00:00

ETSI standard defines "Offchannel CAC" as: "Off-Channel CAC is performed by a number of non-continuous checks spread over a period in time. This period, which is required to determine the presence of radar signals, is defined as the Off-Channel CAC Time.. Minimum Off-Channel CAC Time 6 minutes and Maximum Off-Channel CAC Time 4 hours..". mac80211 implementation refers to a dedicated hw chain used for continuous radar monitoring. Rename offchannel_* references to background_* in order to avoid confusion with ETSI standard. Signed-off-by: Lorenzo Bianconi Link: https://lore.kernel.org/r/4204cc1d648d76b44557981713231e030a3bd991.1638190762.git.lorenzo@kernel.org Signed-off-by: Johannes Berg

mac80211: introduce channel switch disconnect function

2021-12-20T09:36:51+00:00

Introduce a disconnect function that can be used when a channel switch error occurs. The channel switch can request to block the tx, and so, we need to make sure we do not send a deauth frame in this case. Signed-off-by: Nathan Errera Signed-off-by: Luca Coelho Link: https://lore.kernel.org/r/iwlwifi.20211129152938.cd2a615a0702.I9edb14785586344af17644b610ab5be109dcef00@changeid Signed-off-by: Johannes Berg

mac80211: Use memset_after() to clear tx status

2021-11-26T10:54:03+00:00

In preparation for FORTIFY_SOURCE performing compile-time and run-time field bounds checking for memset(), avoid intentionally writing across neighboring fields. Use memset_after() so memset() doesn't get confused about writing beyond the destination member that is intended to be the starting point of zeroing through the end of the struct. Additionally fix the common helper, ieee80211_tx_info_clear_status(), which was not clearing ack_signal, but the open-coded versions did. Johannes Berg points out this bug was introduced by commit e3e1a0bcb3f1 ("mac80211: reduce IEEE80211_TX_MAX_RATES") but was harmless. Also drops the associated unneeded BUILD_BUG_ON()s, and adds a note to carl9170 about usage. Signed-off-by: Kees Cook Tested-by: Christian Lamparter [both CARL9170+P54USB on real HW] Link: https://lore.kernel.org/r/20211118203839.1289276-1-keescook@chromium.org Signed-off-by: Johannes Berg

mac80211: add support for .ndo_fill_forward_path

2021-11-26T10:47:26+00:00

This allows drivers to provide a destination device + info for flow offload Only supported in combination with 802.3 encap offload Signed-off-by: Felix Fietkau Tested-by: Lorenzo Bianconi Link: https://lore.kernel.org/r/20211112112223.1209-1-nbd@nbd.name Signed-off-by: Johannes Berg

mac80211: introduce set_radar_offchan callback

2021-11-19T08:38:49+00:00

Similar to cfg80211, introduce set_radar_offchan callback in mac80211_ops in order to configure a dedicated offchannel chain available on some hw (e.g. mt7915) to perform offchannel CAC detection and avoid tx/rx downtime. Tested-by: Evelyn Tsai Signed-off-by: Lorenzo Bianconi Link: https://lore.kernel.org/r/201110606d4f3a7dfdf31440e351f2e2c375d4f0.1634979655.git.lorenzo@kernel.org Signed-off-by: Johannes Berg

Merge tag 'mac80211-next-for-net-next-2021-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

2021-10-22T17:20:56+00:00

Johannes Berg says: ==================== Quite a few changes: * the applicable eth_hw_addr_set() and const hw_addr changes * various code cleanups/refactorings * stack usage reductions across the wireless stack * some unstructured find_ie() -> structured find_element() changes * a few more pieces of multi-BSSID support * some 6 GHz regulatory support * 6 GHz support in hwsim, for testing userspace code * Light Communications (LC, 802.11bb) early band definitions to be able to add a first driver soon * tag 'mac80211-next-for-net-next-2021-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next: (35 commits) cfg80211: fix kernel-doc for MBSSID EMA mac80211: Prevent AP probing during suspend nl80211: Add LC placeholder band definition to nl80211_band ... ==================== Link: https://lore.kernel.org/r/20211021154953.134849-1-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski

mac80211: MBSSID support in interface handling

2021-09-28T12:22:18+00:00

Configure multiple BSSID and enhanced multi-BSSID advertisement (EMA) parameters in mac80211 for AP mode. For each interface, 'mbssid_tx_vif' points to the transmitting interface of the MBSSID set. The pointer is set to NULL if MBSSID is disabled. Function ieee80211_stop() is modified to always bring down all the non-transmitting interfaces first and the transmitting interface last. Signed-off-by: John Crispin Co-developed-by: Aloka Dixit Signed-off-by: Aloka Dixit Link: https://lore.kernel.org/r/20210916025437.29138-3-alokad@codeaurora.org [slightly change logic to be more obvious] Signed-off-by: Johannes Berg

mac80211: save transmit power envelope element and power constraint

2021-09-27T11:20:42+00:00

This is to save the transmit power envelope element and power constraint in struct ieee80211_bss_conf for 6 GHz. Lower driver will use this info to calculate the power limit. Signed-off-by: Wen Gong Link: https://lore.kernel.org/r/20210924100052.32029-7-wgong@codeaurora.org Signed-off-by: Johannes Berg

ieee80211: add power type definition for 6 GHz

2021-09-27T11:14:35+00:00

6 GHz regulatory domains introduces different modes for 6 GHz AP operations: Low Power Indoor (LPI), Standard Power (SP) and Very Low Power (VLP). 6 GHz STAs could be operated as either Regular or Subordinate clients. Define the flags for power type of AP and STATION mode. Signed-off-by: Wen Gong Link: https://lore.kernel.org/r/20210924100052.32029-2-wgong@codeaurora.org Signed-off-by: Johannes Berg