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mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-04 20:19:47 +08:00
Commit Graph

1017 Commits

Author SHA1 Message Date
Johannes Berg
b5c1622762 wifi: cfg80211: expose cfg80211_chandef_get_width()
This can be just a trivial inline, to simplify some code.
Expose it, and also use it in util.c where it wasn't
previously available.

Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250311122534.c5c3b4af9a74.Ib25cf60f634dc359961182113214e5cdc3504e9c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-12 09:50:24 +01:00
Ilan Peer
e16caea706 wifi: cfg80211: Update the link address when a link is added
When links are added, update the wireless device link addresses based
on the information provided by the driver.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250308225541.d694a9125aba.I79b010ea9aab47893e4f22c266362fde30b7f9ac@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-11 10:53:10 +01:00
Johannes Berg
cf12d3d71e wifi: cfg80211: improve supported_selector documentation
Improve the documentation for supported BSS selectors to make it more
precise.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250308225541.ba402ff47314.I502b56111b62ea0be174ae76bd03684ae1d4aefb@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-11 10:53:10 +01:00
Anjaneyulu
cf4bd16088 wifi: cfg80211: allow IR in 20 MHz configurations
Some regulatory bodies doesn't allow IR (initiate radioation) on a
specific subband, but allows it for channels with a bandwidth of 20 MHz.
Add a channel flag that indicates that, and consider it in
cfg80211_reg_check_beaconing.

While on it, fix the kernel doc of enum nl80211_reg_rule_flags and
change it to use BIT().

Signed-off-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Co-developed-by: Somashekhar Puttagangaiah <somashekhar.puttagangaiah@intel.com>
Signed-off-by: Somashekhar Puttagangaiah <somashekhar.puttagangaiah@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250308225541.d3ab352a73ff.I8a8f79e1c9eb74936929463960ee2a324712fe51@changeid
[fix typo]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-11 10:53:01 +01:00
Johannes Berg
969241371f wifi: cfg80211: allow setting extended MLD capa/ops
Some extended MLD capabilities and operations bits (currently
the "BTM MLD Recommendataion For Multiple APs Support" bit)
may depend on userspace capabilities. Allow userspace to pass
the values for this field that it supports to the association
and link reconfiguration operations.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Link: https://patch.msgid.link/20250308225541.bd52078b5f65.I4dd8f53b0030db7ea87a2e0920989e7e2c7b5345@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-11 10:51:59 +01:00
Johannes Berg
a096a8602f wifi: cfg80211: move link reconfig parameters into a struct
Add a new struct cfg80211_ml_reconf_req to collect the link
reconfiguration parameters.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250308225541.0cf299c1fdd0.Id1a3b1092dc52d0d3731a8798522fdf2e052bf0b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-11 10:51:58 +01:00
Sarika Sharma
23ff5f6f23 wifi: cfg80211: reorg sinfo structure elements for mesh
Currently, as multi-link operation(MLO) is not supported for mesh,
reorganize the sinfo structure for mesh-specific fields and embed
mesh related NL attributes together in organized view.
This will allow for the simplified reorganization of sinfo structure
for link level in a subsequent patch to add support for MLO station
statistics.
No functionality changes added.

Pahole summary before the reorg of sinfo structure:
 - size: 256, cachelines: 4, members: 50
 - sum members: 239, holes: 4, sum holes: 17
 - paddings: 2, sum paddings: 2
 - forced alignments: 1, forced holes: 1, sum forced holes: 1

Pahole summary after the reorg of sinfo structure:
 - size: 248, cachelines: 4, members: 50
 - sum members: 239, holes: 4, sum holes: 9
 - paddings: 2, sum paddings: 2
 - forced alignments: 1, last cacheline: 56 bytes

Signed-off-by: Sarika Sharma <quic_sarishar@quicinc.com>
Link: https://patch.msgid.link/20250213171632.1646538-2-quic_sarishar@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-02-28 14:08:59 +01:00
Benjamin Berg
ceaad3c435 wifi: cfg80211: expose update timestamp to drivers
This information is exposed to userspace but not drivers. Make this
field public so that drivers are also able to access it. The information
is for example useful for link selection to determine whether the BSS
corresponding to an MLO link has been seen in a recent scan.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250212082137.b682ee7aebc8.I0f7cca9effa2b1cee79f4f2eb8b549c99b4e0571@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-02-26 15:48:54 +01:00
Alexander Wetzel
be22179cfb wifi: nl80211/cfg80211: Stop supporting cooked monitor
Unconditionally start to refuse creating cooked monitor interfaces to
phase them out.

There is no feature flag for drivers to opt-in for cooked monitor and
all known users are using/preferring the modern API since the hostapd
release 1.0 in May 2012.

Signed-off-by: Alexander Wetzel <Alexander@wetzel-home.de>
Link: https://patch.msgid.link/20250204111352.7004-1-Alexander@wetzel-home.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-02-11 11:58:17 +01:00
Ilan Peer
904c277342 wifi: cfg80211: Add support for controlling EPCS
Add support for configuring Emergency Preparedness Communication
Services (EPCS) for station mode.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250102161730.ea54ac94445c.I11d750188bc0871e13e86146a3b5cc048d853e69@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-01-13 15:34:09 +01:00
Ilan Peer
65c1c04179 wifi: cfg80211: Add support for dynamic addition/removal of links
Add support for requesting dynamic addition/removal of links to the
current MLO association.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250102161730.cef23352f2a2.I79c849974c494cb1cbf9e1b22a5d2d37395ff5ac@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-01-13 15:34:08 +01:00
Benjamin Berg
f6d2e5abf1 wifi: nl80211: permit userspace to pass supported selectors
Currently the SAE_H2E selector already exists, which needs to be
implemented by the SME. As new such selectors might be added in the
future, add a feature to permit userspace to report a selector as
supported.

If not given, the kernel should assume that userspace does support
SAE_H2E.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250101070249.fe67b871cc39.Ieb98390328927e998e612345a58b6dbc00b0e3a2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-01-13 15:26:45 +01:00
Jakub Kicinski
e8f3323805 wireless-next patches for v6.14
Multi-Link Operation implementation continues, both in stack and in
 drivers. Otherwise it has been relatively quiet.
 
 Major changes:
 
 cfg80211/mac80211
 
 * define wiphy guard
 
 * get TX power per link
 
 * EHT 320 MHz channel support for mesh
 
 ath11k
 
 * QCA6698AQ support
 
 ath9k
 
 * RX inactivity detection
 
 rtl8xxxu
 
 * add more USB device IDs
 
 rtw88
 
 * add more USB device IDs
 
 * enable USB RX aggregation and USB 3 to improve performance
 
 rtw89
 
 * PowerSave flow for Multi-Link Operation
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Merge tag 'wireless-next-2024-12-19' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next

Kalle Valo says:

====================
wireless-next patches for v6.14

Multi-Link Operation implementation continues, both in stack and in
drivers. Otherwise it has been relatively quiet.

Major changes:

cfg80211/mac80211
 - define wiphy guard
 - get TX power per link
 - EHT 320 MHz channel support for mesh

ath11k
 - QCA6698AQ support

ath9k
 - RX inactivity detection

rtl8xxxu
 - add more USB device IDs

rtw88
 - add more USB device IDs
 - enable USB RX aggregation and USB 3 to improve performance

rtw89
 - PowerSave flow for Multi-Link Operation

* tag 'wireless-next-2024-12-19' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (121 commits)
  wifi: wlcore: sysfs: constify 'struct bin_attribute'
  wifi: brcmfmac: clarify unmodifiable headroom log message
  wifi: brcmfmac: add missing header include for brcmf_dbg
  wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy()
  wifi: qtnfmac: fix spelling error in core.h
  wifi: rtw89: phy: add dummy C2H event handler for report of TAS power
  wifi: rtw89: 8851b: rfk: remove unnecessary assignment of return value of _dpk_dgain_read()
  wifi: rtw89: 8852c: rfk: refine target channel calculation in _rx_dck_channel_calc()
  wifi: rtlwifi: pci: wait for firmware loading before releasing memory
  wifi: rtlwifi: fix memory leaks and invalid access at probe error path
  wifi: rtlwifi: destroy workqueue at rtl_deinit_core
  wifi: rtlwifi: remove unused check_buddy_priv
  wifi: rtw89: 8922a: update format of RFK pre-notify H2C command v2
  wifi: rtw89: regd: update regulatory map to R68-R51
  wifi: rtw89: 8852c: disable ER SU when 4x HE-LTF and 0.8 GI capability differ
  wifi: rtw89: disable firmware training HE GI and LTF
  wifi: rtw89: ps: update data for firmware and settings for hardware before/after PS
  wifi: rtw89: ps: refactor channel info to firmware before entering PS
  wifi: rtw89: ps: refactor PS flow to support MLO
  wifi: mwifiex: decrease timeout waiting for host sleep from 10s to 5s
  ...
====================

Link: https://patch.msgid.link/20241219185709.774EDC4CECE@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-19 18:54:07 -08:00
Jakub Kicinski
3f330db306 net: reformat kdoc return statements
kernel-doc -Wall warns about missing Return: statement for non-void
functions. We have a number of kdocs in our headers which are missing
the colon, IOW they use
 * Return some value
or
 * Returns some value

Having the colon makes some sense, it should help kdoc parser avoid
false positives. So add them. This is mostly done with a sed script,
and removing the unnecessary cases (mostly the comments which aren't
kdoc).

Acked-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Acked-by: Alexandra Winter <wintera@linux.ibm.com>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Link: https://patch.msgid.link/20241205165914.1071102-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-12-09 14:44:59 -08:00
Rameshkumar Sundaram
7a53af85d3 wifi: cfg80211: send MLO links tx power info in GET_INTERFACE
Currently, TX power is reported on interface/wdev level as
part of NL80211_CMD_GET_INTERFACE. With MLO, Multiple links
can be part of an interface/wdev and hence its necessary to
report the TX power of each link.

Add support to send tx power for all valid links of an MLD as
part of NL80211_CMD_GET_INTERFACE request.

As far as userspace is concerned, there is no behavioral change
for Non-ML Interfaces. For ML interfaces, userspace should fetch
TX power that is nested inside NL80211_ATTR_MLO_LINKS, similar to
how channel info(NL80211_ATTR_WIPHY_FREQ) is fetched.

Co-developed-by: Aaradhana Sahu <quic_aarasahu@quicinc.com>
Signed-off-by: Aaradhana Sahu <quic_aarasahu@quicinc.com>
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Link: https://patch.msgid.link/20241125083217.216095-2-quic_ramess@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-12-04 16:14:46 +01:00
Johannes Berg
f42d22d3f7 wifi: cfg80211: define and use wiphy guard
Define a guard for the wiphy mutex, and use it in
most code in cfg80211, though not all due to some
interaction with RTNL and/or indentation.

Suggested-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20241122094225.88765cbaab65.I610c9b14f36902e75e1d13f0db29f8bef2298804@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-12-04 16:10:52 +01:00
Jakub Kicinski
5b1c965956 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.12-rc6).

Conflicts:

drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c
  cbe84e9ad5 ("wifi: iwlwifi: mvm: really send iwl_txpower_constraints_cmd")
  188a1bf894 ("wifi: mac80211: re-order assigning channel in activate links")
https://lore.kernel.org/all/20241028123621.7bbb131b@canb.auug.org.au/

net/mac80211/cfg.c
  c4382d5ca1 ("wifi: mac80211: update the right link for tx power")
  8dd0498983 ("wifi: mac80211: Fix setting txpower with emulate_chanctx")

drivers/net/ethernet/intel/ice/ice_ptp_hw.h
  6e58c33106 ("ice: fix crash on probe for DPLL enabled E810 LOM")
  e4291b64e1 ("ice: Align E810T GPIO to other products")
  ebb2693f8f ("ice: Read SDP section from NVM for pin definitions")
  ac532f4f42 ("ice: Cleanup unused declarations")
https://lore.kernel.org/all/20241030120524.1ee1af18@canb.auug.org.au/

No adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-10-31 18:10:07 -07:00
Felix Fietkau
a77e527b47 wifi: cfg80211: add monitor SKIP_TX flag
This can be used to indicate that the user is not interested in receiving
locally sent packets on the monitor interface.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/f0c20f832eadd36c71fba9a2a16ba57d78389b6c.1728462320.git-series.nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-10-23 16:46:06 +02:00
Felix Fietkau
9c4f830927 wifi: cfg80211: pass net_device to .set_monitor_channel
Preparation for allowing multiple monitor interfaces with different channels
on a multi-radio wiphy.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/35fa652dbfebf93343f8b9a08fdef0467a2a02dc.1728462320.git-series.nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-10-23 16:45:35 +02:00
Felix Fietkau
ebda716ea4 wifi: cfg80211: report per wiphy radio antenna mask
With multi-radio devices, each radio typically gets a fixed set of antennas.
In order to be able to disable specific antennas for some radios, user space
needs to know which antenna mask bits are assigned to which radio.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/e0a26afa2c88eaa188ec96ec6d17ecac4e827641.1728462320.git-series.nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-10-23 16:45:03 +02:00
Felix Fietkau
3607798ad9 wifi: cfg80211: add option for vif allowed radios
This allows users to prevent a vif from affecting radios other than the
configured ones. This can be useful in cases where e.g. an AP is running
on one radio, and triggering a scan on another radio should not disturb it.

Changing the allowed radios list for a vif is supported, but only while
it is down.

While it is possible to achieve the same by always explicitly specifying
a frequency list for scan requests and ensuring that the wrong channel/band
is never accidentally set on an unrelated interface, this change makes
multi-radio wiphy setups a lot easier to deal with for CLI users.

By itself, this patch only enforces the radio mask for scanning requests
and remain-on-channel. Follow-up changes build on this to limit configured
frequencies.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/eefcb218780f71a1549875d149f1196486762756.1728462320.git-series.nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-10-23 16:44:10 +02:00
Johannes Berg
62262dd00c wifi: cfg80211: disallow SMPS in AP mode
In practice, userspace hasn't been able to set this for many
years, and mac80211 has already rejected it (which is now no
longer needed), so reject SMPS mode (other than "OFF" to be
a bit more compatible) in AP mode. Also remove the parameter
from the AP settings struct.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241007144851.fe1fc46484cf.I8676fb52b818a4bedeb9c25b901e1396277ffc0b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-10-23 16:43:03 +02:00
Remi Pommarel
68d0021fe7 wifi: cfg80211: Add wiphy_delayed_work_pending()
Add wiphy_delayed_work_pending() to check if any delayed work timer is
pending, that can be used to be sure that wiphy_delayed_work_queue()
won't postpone an already pending delayed work.

Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Link: https://patch.msgid.link/20240924192805.13859-2-repk@triplefau.lt
[fix return value kernel-doc]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-10-08 21:24:00 +02:00
Johannes Berg
4e1b558605 wifi: cfg80211: fix kernel-doc for per-link data
There cannot be brackets in kernel-doc, remove them.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 62c16f219a ("wifi: cfg80211: move DFS related members to links[] in wireless_dev")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-09-09 11:04:25 +02:00
Aditya Kumar Singh
81f67d60eb wifi: cfg80211: handle DFS per link
Currently, during starting a radar detection, no link id information is
parsed and passed down. In order to support starting radar detection
during Multi Link Operation, it is required to pass link id as well.

Add changes to first parse and then pass link id in the start radar
detection path.

Additionally, update notification APIs to allow drivers/mac80211 to
pass the link ID.

However, everything is handled at link 0 only until all API's are ready to
handle it per link.

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://patch.msgid.link/20240906064426.2101315-6-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-09-06 13:01:05 +02:00
Aditya Kumar Singh
62c16f219a wifi: cfg80211: move DFS related members to links[] in wireless_dev
A few members related to DFS handling are currently under per wireless
device data structure. However, in order to support DFS with MLO, there is
a need to have them on a per-link manner.

Hence, as a preliminary step, move members cac_started, cac_start_time
and cac_time_ms to be on a per-link basis.

Since currently, link ID is not known at all places, use default value of
0 for now.

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://patch.msgid.link/20240906064426.2101315-5-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-09-06 13:01:05 +02:00
Felix Fietkau
510dba80ed wifi: cfg80211: add helper for checking if a chandef is valid on a radio
Check if the full channel width is in the radio's frequency range.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/7c8ea146feb6f37cee62e5ba6be5370403695797.1720514221.git-series.nbd@nbd.name
[add missing Return: documentation]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-07-09 11:36:00 +02:00
Felix Fietkau
abb4cfe366 wifi: cfg80211: extend interface combination check for multi-radio
Add a field in struct iface_combination_params to check per-radio
interface combinations instead of per-wiphy ones.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/32b28da89c2d759b0324deeefe2be4cee91de18e.1720514221.git-series.nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-07-09 11:29:59 +02:00
Felix Fietkau
e6c06ca8f2 wifi: cfg80211: add support for advertising multiple radios belonging to a wiphy
The prerequisite for MLO support in cfg80211/mac80211 is that all the links
participating in MLO must be from the same wiphy/ieee80211_hw. To meet this
expectation, some drivers may need to group multiple discrete hardware each
acting as a link in MLO under single wiphy.

With this change, supported frequencies and interface combinations of each
individual radio are reported to user space. This allows user space to figure
out the limitations of what combination of channels can be used concurrently.

Even for non-MLO devices, this improves support for devices capable of
running on multiple channels at the same time.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/18a88f9ce82b1c9f7c12f1672430eaf2bb0be295.1720514221.git-series.nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-07-09 11:29:59 +02:00
Johannes Berg
c1d8bd8d77 wifi: cfg80211: add regulatory flag to allow VLP AP operation
Add a regulatory flag to allow VLP AP operation even on
channels otherwise marked NO_IR, which may be possible
in some regulatory domains/countries.

Note that this requires checking also when the beacon is
changed, since that may change the regulatory power type.

Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://msgid.link/20240523120945.63792ce19790.Ie2a02750d283b78fbf3c686b10565fb0388889e2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-06-12 13:04:25 +02:00
Johannes Berg
9fd171a71b wifi: cfg80211: refactor regulatory beaconing checking
There are two functions exported now, with different settings,
refactor to just export a single function that take a struct
with different settings. This will make it easier to add more
parameters.

Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://msgid.link/20240523120945.d44c34dadfc2.I59b4403108e0dbf7fc6ae8f7522e1af520cffb1c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-06-12 13:04:25 +02:00
Johannes Berg
0a9314ad5f wifi: cfg80211: move enum ieee80211_ap_reg_power to cfg80211
This really shouldn't have been in ieee80211.h, since it
doesn't directly represent the spec. Move it to cfg80211
rather than mac80211 since upcoming changes will use it
there.

Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://msgid.link/20240523120945.962b16c831cd.I5745962525b1b176c5b90d37b3720fc100eee406@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-06-12 13:04:25 +02:00
Johannes Berg
8682ad3687 wifi: cfg80211: use BIT() for flag enums
Use BIT(x) instead of 1<<x, in part because it's mostly
missing spaces anyway, in part because it reads nicer.

Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://msgid.link/20240523120945.c21598fbf49c.Ib8f26c5e9f508aee19fdfa1fd4b5995f084c46d4@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-06-12 13:04:25 +02:00
Johannes Berg
8526f8c877 wifi: nl80211: clean up coalescing rule handling
There's no need to allocate a tiny struct and then
an array again, just allocate the two together and
use __counted_by(). Also unify the freeing.

Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240523120213.48a40cfb96f9.Ia02bf8f8fefbf533c64c5fa26175848d4a3a7899@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-05-29 10:38:53 +02:00
Dmitry Antipov
aa4ec06c45 wifi: cfg80211: use __counted_by where appropriate
Annotate 'sub_specs' of 'struct cfg80211_sar_specs', 'channels'
of 'struct cfg80211_sched_scan_request', 'channels' of 'struct
cfg80211_wowlan_nd_match', and 'matches' of 'struct
cfg80211_wowlan_nd_info' with '__counted_by' attribute. Briefly
tested with clang 18.1.1 and CONFIG_UBSAN_BOUNDS running iwlwifi.

Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Link: https://msgid.link/20240517153332.18271-1-dmantipov@yandex.ru
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-05-23 11:32:05 +02:00
Aditya Kumar Singh
91d2b6ee13 wifi: cfg80211: handle color change per link
Currently, during color change, no link id information is passed down.
In order to support color change during Multi Link Operation, it is
required to pass link id as well.
Additionally, update notification APIs to allow drivers/mac80211 to
pass the link ID.

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240422053412.2024075-2-quic_adisi@quicinc.com
Link: https://msgid.link/20240422053412.2024075-3-quic_adisi@quicinc.com
[squash, actually only pass 0 from mac80211]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-05-03 10:18:03 +02:00
Jeff Johnson
62cc206cb1 wifi: cfg80211: fix cfg80211 function kernel-doc
Running "scripts/kernel-doc -Wall -Werror -none include/net/cfg80211.h"
produces many warnings of the form "warning: No description found for
return value of <function>", so make sure all of them have a Return:
clause. In some instances also add a Context: clause.

Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://msgid.link/20240417-cfg80211-kdoc-v1-1-d54cb7143417@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-04-19 10:17:16 +02:00
Johannes Berg
be23b2d7c3 wifi: cfg80211: add a flag to disable wireless extensions
Wireless extensions are already disabled if MLO is enabled,
given that we cannot support MLO there with all the hard-
coded assumptions about BSSID etc.

However, the WiFi7 ecosystem is still stabilizing, and some
devices may need MLO disabled while that happens. In that
case, we might end up with a device that supports wext (but
not MLO) in one kernel, and then breaks wext in the future
(by enabling MLO), which is not desirable.

Add a flag to let such drivers/devices disable wext even if
MLO isn't yet enabled.

Cc: stable@vger.kernel.org
Link: https://msgid.link/20240314110951.b50f1dc4ec21.I656ddd8178eedb49dc5c6c0e70f8ce5807afb54f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-25 15:23:06 +01:00
Johannes Berg
8ade3356b2 wifi: cfg80211: allow cfg80211_defragment_element() without output
If we just want to determine the length of the fragmented
data, we basically need the same logic, and really we want
it to be _literally_ the same logic, so it cannot be out
of sync in any way.

Allow calling cfg80211_defragment_element() without an output
buffer, where it then just returns the required output size.

Also add this to the tests, just to exercise it, using the
pre-calculated length to really do the defragmentation, which
checks that this is sufficient.

Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Benjamin Berg <benjamin.berg@intel.com>
Link: https://msgid.link/20240228095718.6d6565b9e3f2.Ib441903f4b8644ba04b1c766f90580ee6f54fc66@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04 14:33:51 +01:00
Johannes Berg
22667035e5 wifi: cfg80211: expose cfg80211_iter_rnr() to drivers
In mac80211 we'll need to look at reduced neighbor report
entries for channel switch purposes, so export the iteration
function to make that simpler.

Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240228095718.0954809964ef.I53e95c017aa71f14e8d1057afbbc75982ddb43df@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04 14:33:49 +01:00
Johannes Berg
7e899c1d6f wifi: cfg80211: clean up cfg80211_inform_bss_frame_data()
Make cfg80211_inform_bss_frame_data() call the existing
cfg80211_inform_bss_data() after parsing the frame in the
appropriate way, so we have less code duplication. This
required introducing a new CFG80211_BSS_FTYPE_S1G_BEACON,
but that can be used by other drivers as well.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240216135047.874aed1eff5f.Ib7d88d126eec50c64763251a78cb432bb5df14df@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-21 15:19:04 +01:00
Johannes Berg
414532d8aa wifi: cfg80211: use IEEE80211_MAX_MESH_ID_LEN appropriately
Even if that's the same as IEEE80211_MAX_SSID_LEN, we really
should just use IEEE80211_MAX_MESH_ID_LEN for mesh, rather
than having the BUILD_BUG_ON()s.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-15 10:59:08 +01:00
Shaul Triebitz
a64be8296e wifi: cfg80211: report unprotected deauth/disassoc in wowlan
Add to cfg80211_wowlan_wakeup another wakeup reason -
unprot_deauth_disassoc.
To be set to true if the woke up was due to an
unprotected deauth or disassoc frame in MFP.
In that case report WOWLAN_TRIG_UNPROTECTED_DEAUTH_DISASSOC.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206164849.a3d739850d03.I8f52a21c4f36d1af1f8068bed79e2f9cbf8289ef@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-12 21:22:48 +01:00
Johannes Berg
a110a3b791 wifi: cfg80211: optionally support monitor on disabled channels
If the hardware supports a disabled channel, it may in
some cases be possible to use monitor mode (without any
transmit) on it when it's otherwise disabled. Add a new
channel flag IEEE80211_CHAN_CAN_MONITOR that makes it
possible for a driver to indicate such a thing.

Make it per channel so drivers could have a choice with
it, perhaps it's only possible on some channels, perhaps
some channels are not supported at all, but still there
and marked disabled.

In _nl80211_parse_chandef() simplify the code and check
only for an unknown channel, _cfg80211_chandef_usable()
will later check for IEEE80211_CHAN_DISABLED anyway.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206164849.87fad3a21a09.I9116b2fdc2e2c9fd59a9273a64db7fcb41fc0328@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-12 21:22:48 +01:00
Johannes Berg
7b5e25b8ba wifi: cfg80211: rename UHB to 6 GHz
UHB stands for "Ultra High Band", but this term doesn't really
exist in the spec. Rename all occurrences to "6 GHz", but keep
a few defines for userspace API compatibility.

Link: https://msgid.link/20240206164849.c9cfb9400839.I153db3b951934a1d84409c17fbe1f1d1782543fa@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-12 21:22:46 +01:00
Aditya Kumar Singh
f6ca96aa51 wifi: cfg80211: add support for link id attribute in NL80211_CMD_DEL_STATION
Currently whenever NL80211_CMD_DEL_STATION command is called without any
MAC address, all stations present on that interface are flushed.
However with MLO there is a need to flush such stations only which are
using at least a particular link from the AP MLD interface.

For example - 2 GHz and 5 GHz are part of an AP MLD.
To this interface, following stations are connected -
   1. One non-EHT STA on 2 GHz link.
   2. One non-EHT STA on 5 GHz link.
   3. One Multi-Link STA having 2 GHz and 5 GHz as active links.

Now if currently, NL80211_CMD_DEL_STATION is issued by the 2 GHz link
without any MAC address, it would flush all station entries. However,
flushing of station entry #2 at least is not desireable since it
is connected to 5 GHz link alone.

Hence, add an option to pass link ID as well in the command so that if link
ID is passed, stations using that passed link ID alone would be flushed
and others will not.

So after this, station entries #1 and #3 alone would be flushed and #2 will
remain as it is.

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240205162952.1697646-2-quic_adisi@quicinc.com
[clarify documentation]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-12 21:11:24 +01:00
Johannes Berg
d4655db0a1 wifi: cfg80211: fix kernel-doc for cfg80211_chandef_primary
This was still referring to cfg80211_chandef_primary_freq(),
fix it.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: b82730bf57 ("wifi: cfg80211/mac80211: move puncturing into chandef")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-09 08:04:59 +01:00
Aditya Kumar Singh
4ace04c0bd wifi: cfg80211: send link id in channel_switch ops
Currently, during channel switch, no link id information is passed down.
In order to support channel switch during Multi Link Operation, it is
required to pass link id as well.

Add changes to pass link id in the channel_switch cfg80211_ops.

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240130140918.1172387-2-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08 15:00:45 +01:00
Michael-CY Lee
68de13028b wifi: cfg80211: Add utility for converting op_class into chandef
This utility is used in STA CSA handling. The op_class in the ECSA
Element can be converted into chandef.

Co-developed-by: Money Wang <money.wang@mediatek.com>
Signed-off-by: Michael-CY Lee <michael-cy.lee@mediatek.com>
Link: https://msgid.link/20231222010914.6521-2-michael-cy.lee@mediatek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08 15:00:44 +01:00
Johannes Berg
b82730bf57 wifi: cfg80211/mac80211: move puncturing into chandef
Aloka originally suggested that puncturing should be part of
the chandef, so that it's treated correctly. At the time, I
disagreed and it ended up not part of the chandef, but I've
now realized that this was wrong. Even for clients, the RX,
and perhaps more importantly, CCA configuration needs to take
puncturing into account.

Move puncturing into the chandef, and adjust all the code
accordingly. Also add a few tests for puncturing in chandef
compatibility checking.

Link: https://lore.kernel.org/linux-wireless/20220214223051.3610-1-quic_alokad@quicinc.com/
Suggested-by: Aloka Dixit <quic_alokad@quicinc.com>
Link: https://msgid.link/20240129194108.307183a5d2e5.I4d7fe2f126b2366c1312010e2900dfb2abffa0f6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08 15:00:39 +01:00