ieee80211_do_stop() removes AP_VLAN packets from the parent AP
ps->bc_buf while holding ps->bc_buf.lock with IRQs disabled. It then
calls ieee80211_free_txskb() before dropping the lock.
ieee80211_free_txskb() is not just a passive SKB release. For SKBs with
TX status state it can report a dropped frame through cfg80211/nl80211,
and that path can reach netlink tap transmit. This is the same reason
the pending queue cleanup in ieee80211_do_stop() already unlinks SKBs
under the queue lock and frees them after IRQ state is restored.
The buggy scenario involves two paths, with each column showing the
order within that path:
AP_VLAN management TX: AP_VLAN stop:
1. attach ACK-status state 1. clear the running state
2. queue a multicast SKB on 2. take ps->bc_buf.lock with IRQs
parent ps->bc_buf disabled
3. unlink the AP_VLAN SKB
4. call ieee80211_free_txskb()
Unlink matching AP_VLAN SKBs from ps->bc_buf under the existing lock,
but move them to a local free queue. Drop the lock and restore IRQ state
before calling ieee80211_free_txskb().
WARNING: kernel/softirq.c:430 at __local_bh_enable_ip
Fixes: 397a7a24ef ("mac80211: free ps->bc_buf skbs on vlan device stop")
Assisted-by: Codex:gpt-5.5
Signed-off-by: Cen Zhang <zzzccc427@gmail.com>
Link: https://patch.msgid.link/20260706140841.581566-1-zzzccc427@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The interface frame queue processing code currently
differentiates many frame types and below those the
interface types, but then falls through to per-type
processing. Move this code to the per-type functions,
creating a new ap.c file that gets relevant code, and
this way reduce the number of non-static symbols.
This also helps with adding more cases for UHR later.
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260428103649.c00059e68a07.I2269130278390f534d6051fac424402a854a54aa@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add a new wdev-only interface type NL80211_IFTYPE_PD to support
Proximity Detection (PD) operations such as PASN and peer measurement
operations. This interface type operates without a netdev, similar to
P2P_DEVICE and NAN interfaces.
Implement support across cfg80211 and mac80211 layers with PD-specific
checks gated by the NL80211_EXT_FEATURE_SECURE_RTT feature flag,
management frame registration and transmission capabilities, and proper
channel context handling where PD interfaces are excluded from bandwidth
calculations. Update mac80211 to recognize the new interface type in the
relevant paths for this management-only interface.
PD discovery can be performed on any available interface, such as
NL80211_IFTYPE_STATION.
If PD/PMSR uses the MAC address of an existing interface type, such as
NL80211_IFTYPE_STATION, then pairing and measurement shall use that
same interface. If PD/PMSR uses a different MAC address, such as a
random MAC address, then pairing and measurement can be performed on a
new NL80211_IFTYPE_PD interface created with that random MAC address.
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
Link: https://patch.msgid.link/20260420090856.2152905-4-peddolla.reddy@oss.qualcomm.com
[fix comment style]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Allow setting the interface MAC address for NAN Device interfaces
and P2P Device interfaces on interface creation.
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/20260504101829.d268b245037b.I351e16270c34ee734fed98da25db848211ab7cc2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The current code does not support establishing MLO connections for
interfaces operating in 4-address AP_VLAN mode.
MLO bringup is blocked by sanity checks in cfg.c, iface.c, and mlme.c,
which prevent MLD initialization when use_4addr is enabled.
Remove these restrictions to allow 4-address AP_VLAN interfaces to
initialize as part of an MLD and successfully participate in MLO
connections. This patch series also adds the necessary changes to
support WDS operation in MLO, making these modifications valid.
Allow 4-address mode interfaces to:
- Proceed with MLD initialization during interface setup
- Add MLO links dynamically via ieee80211_add_intf_link()
- Establish associations with MLO-capable access points
- Support AP_VLAN interfaces with MLO parent APs
Signed-off-by: Tamizh Chelvam Raja <tamizh.raja@oss.qualcomm.com>
Link: https://patch.msgid.link/20260326164723.553927-4-tamizh.raja@oss.qualcomm.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add support for both NMI and NDI stations.
The NDI station will be linked to the NMI station of the NAN peer for
which the NDI station is added.
A peer can choose to reuse its NMI address as the NDI address.
Since different keys might be in use for NAN management and for data
frames, we will have 2 different stations, even if they'll have the same
address.
Even though there are no links in NAN, sta->deflink will still be used
to store the one set of capabilities and SMPS mode.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260326121156.9fdd37b8e755.I7a7bd6e8e751cab49c329419485839afd209cfc6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Support opening and closing a NAN_DATA interface.
Track the NAN (NMI) interface, for convenience.
Allow opening an NAN_DATA interface only if the NAN interface is running
(NAN has started).
When closing the NAN interface, make sure all NAN_DATA interfaces are
closed first, and warn if this is not the case.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260326121156.a19de68119e5.Ia6724dac6a0e17cb69989dd714d14f4df1c69bef@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
A NAN local schedule consist of a list of NAN channels, and an array
that maps time slots to the channel it is scheduled to (or NULL to indicate
unscheduled).
A NAN channel is the configuration of a channel which is used for NAN
operations. It is a new type of chanctx user (before, the only user is a
link). A NAN channel may not have a chanctx assigned if it is ULWed out.
A NAN channel may or may not be scheduled (for example, user space
may want to prepare the resources before the actual schedule is
configured).
Add management of the NAN local schedule.
Since we introduce a new chanctx user, also adjust the different
for_each_chanctx_user_* macros to visit also the NAN channels and take
those into account.
Co-developed-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260326121156.03350fd40630.Id158f815cfc9b5ab1ebdb8ee608bda426e4d7474@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
NAN DE (Discovery Engine) may be handled in the device or in user space.
When handled in user space, all the NAN func management code should not
run. Moreover, devices with user space DE should not provide the
add/del_nan_func callbaks. For such devices, ieee80211_reconfig_nan will
always fail.
Make it clear what parts of ieee80211_if_nan are relevant to DE
management, and touch those only when DE is offloaded.
Add a check that makes sure that a driver doesn't register with
add_del/nan_func callbacks if DE is in user space.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260326121156.6665f64865cd.Iee24bef3bae2e1d502216192e760c1e699d271c9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Currently there is no TXQ for non-data frames. Add a new txq_mgmt for
this purpose and create one of these on NAN devices. On NAN devices,
these frames may only be transmitted during the discovery window and it
is therefore helpful to schedule them using a queue.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260326121156.32eddd986bd2.Iee95758287c276155fbd7779d3f263339308e083@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This new interface type represents a NAN data interface (NDI).
It is used for data communication with NAN peers.
Note that the existing NL80211_IFTYPE_NAN interface, which is the NAN
Management Interface (NMI), is used for management communication.
An NDI interface is started when a new NAN data path is about to
be established, and is stopped after the NAN data path is terminated.
- An NDI interface can only be started if the NMI is running, and NAN is
started.
- Before the NMI is stopped, the NDI interfaces will be stopped.
Add the new interface type, handle add/remove operations for it,
and makes sure of the conditions above.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260219114327.0d681335c2e2.I92973483e927820ae2297853c141842fdb262747@changeid
Link: https://patch.msgid.link/20260318123926.206536-4-miriam.rachel.korenblit@intel.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If we failed on drv_start, we currently cleanup AP_VLAN reference to
bss.
But this is not needed, since AP_VLAN must be tied to a pre-existing AP
interface, so open_count cannot be 0, so we will never call drv_start
for AP_VLAN interfaces.
Remove these cleanup and return immediately instead.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260325154742.3c532a9132c3.Idac5c38d5ad7ce97782a8c05ae72bb0c689c4fa9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In case of an error in ieee80211_add_virtual_monitor,
SDATA_STATE_RUNNING should be cleared as it was set in this function.
Do it there instead of in the error path of ieee80211_do_open.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260320141312.5546126313b1.I689dba2f54069b259702e8d246cedf79a73b82c6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The action code actually serves to identify the type of action
frame, so it really isn't part of the per-type structure. Pull
it out and have it in the general action frame format.
In theory, whether or not the action code is present in this
way is up to each category, but all categories that are defined
right now all have that value.
While at it, and since this change requires changing all users,
remove the 'u' and make it an anonymous union in this case, so
that all code using this changes.
Change IEEE80211_MIN_ACTION_SIZE to take an argument which says
how much of the frame is needed, e.g. category, action_code or
the specific frame type that's defined in the union. Again this
also ensures that all code is updated.
In some cases, fix bugs where the SKB length was checked after
having accessed beyond the checked length, in particular in FTM
code, e.g. ieee80211_is_ftm().
Link: https://patch.msgid.link/20260226183607.67e71846b59e.I9a24328e3ffcaae179466a935f1c3345029f9961@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Introduce support in AP mode for parsing of the Operating Mode Notification
frame sent by the client to enable/disable MLO eMLSR or eMLMR if supported
by both the AP and the client.
Add drv_set_eml_op_mode mac80211 callback in order to configure underlay
driver with eMLSR/eMLMR info.
Tested-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20260129-mac80211-emlsr-v4-1-14bdadf57380@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Prior initiating communication in a DFS channel, there should be a
monitoring of RADAR in that channel for a minimum of 600 seconds if it
is a Weather RADAR channel and 60 seconds for other DFS channels. This
Channel Availability Check(CAC) is currently implemented by scheduling
a work item for execution with a delay equal to an appropriate timeout.
But this work item is observed to take more delay than specified
(4-5 seconds in regular DFS channels and 25-30 seconds in Weather RADAR
channels). Even though this delay is expected in case of delayed work
queue as there is no guarantee that the work will be scheduled exactly
after the specified delay, a delay of more than 20 seconds is too much
for the AP to be in non-operational state.
Recently commit 7ceba45a66 ("wifi: cfg80211: add an hrtimer based
delayed work item") added an infrastructure to overcome this issue by
supporting high resolution timers for mac80211 delayed work, which do not
have this timeout latency. Switch the CAC timeout to use this
infrastructure, so the CAC completion handling is triggered with tighter
timing and reduced latency.
Signed-off-by: Amith A <amith.a@oss.qualcomm.com>
Link: https://patch.msgid.link/20260130035511.2328713-1-amith.a@oss.qualcomm.com
[fix delay handling]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
- cfg80211/mac80211
- most of EPPKE/802.1X over auth frames support
- additional FTM capabilities
- split up drop reasons better, removing generic RX_DROP
- NAN cleanups/fixes
- ath11k:
- support for Channel Frequency Response measurement
- ath12k:
- support for the QCC2072 chipset
- iwlwifi:
- partial NAN support
- UNII-9 support
- some UHR/802.11bn FW APIs
- remove most of MLO/EHT from iwlmvm
(such devices use iwlmld)
- rtw89:
- preparations for RTL8922DE support
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Merge tag 'wireless-next-2026-01-29' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Johannes Berg says:
====================
Another fairly large set of changes, notably:
- cfg80211/mac80211
- most of EPPKE/802.1X over auth frames support
- additional FTM capabilities
- split up drop reasons better, removing generic RX_DROP
- NAN cleanups/fixes
- ath11k:
- support for Channel Frequency Response measurement
- ath12k:
- support for the QCC2072 chipset
- iwlwifi:
- partial NAN support
- UNII-9 support
- some UHR/802.11bn FW APIs
- remove most of MLO/EHT from iwlmvm
(such devices use iwlmld)
- rtw89:
- preparations for RTL8922DE support
* tag 'wireless-next-2026-01-29' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (184 commits)
wifi: iwlegacy: add missing mutex protection in il4965_store_tx_power()
wifi: iwlegacy: add missing mutex protection in il3945_store_measurement()
wifi: mac80211: use u64_stats_t with u64_stats_sync properly
wifi: p54: Fix memory leak in p54_beacon_update()
wifi: cfg80211: treat deprecated INDOOR_SP_AP_OLD control value as LPI mode
wifi: rtw88: sdio: Migrate to use sdio specific shutdown function
wifi: rsi: sdio: Migrate to use sdio specific shutdown function
sdio: Provide a bustype shutdown function
wifi: nl80211/cfg80211: support operating as RSTA in PMSR FTM request
wifi: nl80211/cfg80211: add negotiated burst period to FTM result
wifi: nl80211/cfg80211: clarify periodic FTM parameters for non-EDCA based ranging
wifi: nl80211/cfg80211: add new FTM capabilities
wifi: iwlwifi: rename struct iwl_mcc_allowed_ap_type_cmd::offset_map
wifi: iwlwifi: mvm: Remove link_id from time_events
wifi: iwlwifi: mld: change cluster_id type to u8 array
wifi: iwlwifi: support V13 of iwl_lari_config_change_cmd
wifi: iwlwifi: split bios_value_u32 to separate the header
wifi: iwlwifi: uefi: cache the DSM functions
wifi: iwlwifi: acpi: cache the DSM functions
wifi: iwlwifi: mvm: Cleanup MLO code
...
====================
Link: https://patch.msgid.link/20260129110136.176980-39-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We are not adding an interface if an existing one is doing CSA.
But the check won't work for MLO station interfaces, since for those,
vif->bss_conf is zeroed out.
Fix this by checking if any link of the vif has an active CSA.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260111191912.7ceff62fc561.Ia38d27f42684d1cfd82d930d232bd5dea6ab9282@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Cross-merge networking fixes after downstream PR (net-6.18-rc6).
No conflicts, adjacent changes in:
drivers/net/phy/micrel.c
96a9178a29 ("net: phy: micrel: lan8814 fix reset of the QSGMII interface")
61b7ade9ba ("net: phy: micrel: Add support for non PTP SKUs for lan8814")
and a trivial one in tools/testing/selftests/drivers/net/Makefile.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
For monitoring, userspace will try to configure the VIF sdata, while the
driver may see the monitor_sdata that is created when only monitor
interfaces are up. This causes the odd situation that it may not be
possible to store the MU-MIMO configuration on monitor_sdata.
Fix this by storing that information on the VIF sdata and updating the
monitor_sdata when available and the interface is up. Also, adjust the
code that adds monitor_sdata so that it will configure MU-MIMO based on
the newly added interface or one of the existing ones.
This should give a mostly consistent behaviour when configuring MU-MIMO
on sniffer interfaces. Should the user configure MU-MIMO on multiple
sniffer interfaces, then mac80211 will simply select one of the
configurations. This behaviour should be good enough and avoids breaking
user expectations in the common scenarios.
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/20251110141514.677915f8f6bb.If4e04a57052f9ca763562a67248b06fd80d0c2c1@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
While connecting, the MAC address can already no longer be
changed. The change is already rejected if netif_carrier_ok(),
but of course that's not true yet while connecting. Check for
auth_data or assoc_data, so the MAC address cannot be changed.
Also more comprehensively check that there are no stations on
the interface being changed - if any peer station is added it
will know about our address already, so we cannot change it.
Cc: stable@vger.kernel.org
Fixes: 3c06e91b40 ("wifi: mac80211: Support POWERED_ADDR_CHANGE feature")
Link: https://patch.msgid.link/20251105154119.f9f6c1df81bb.I9bb3760ede650fb96588be0d09a5a7bdec21b217@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The function ieee80211_sdata_from_skb() always returned the P2P Device
interface in case the skb was not associated with a netdev and didn't
consider the possibility that an NAN Device interface is also enabled.
To support configurations where both P2P Device and a NAN Device
interface are active, extend the function to match the correct
interface based on address 2 in the 802.11 MAC header.
Since the 'p2p_sdata' field in struct ieee80211_local is no longer
needed, remove it.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Andrei Otcheretianski <andrei.otcheretianski@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/20250908140015.5252d2579a49.Id4576531c6b2ad83c9498b708dc0ade6b0214fa8@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In case that NAN is started, mark the device as non idle,
and set LED triggering similar to scan and ROC. Set the
device to idle once NAN is stopped.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Andrei Otcheretianski <andrei.otcheretianski@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/20250908140015.2711d62fce22.I9b9f826490e50967a66788d713b0eba985879873@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If this action frame, with the value of IEEE80211_HT_CHANWIDTH_ANY,
arrives right after a beacon that changed the operational bandwidth from
20 MHz to 40 MHz, then updating the rate control bandwidth to 40 can
race with updating the chanctx width (that happens in the beacon
proccesing) back to 40 MHz:
cpu0 cpu1
ieee80211_rx_mgmt_beacon
ieee80211_config_bw
ieee80211_link_change_chanreq
(*)ieee80211_link_update_chanreq
ieee80211_rx_h_action
(**)ieee80211_sta_cur_vht_bw
(***) ieee80211_recalc_chanctx_chantype
in (**), the maximum between the capability width and the bss width is
returned. But the bss width was just updated to 40 in (*),
so the action frame handling code will increase the width of the rate
control before the chanctx was increased (in ***), leading to a FW error
(at least in iwlwifi driver. But this is wrong regardless).
Fix this by simply handling the action frame async, so it won't race
with the beacon proccessing.
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218632
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250709233537.bb9dc6f36c35.I39782d6077424e075974c3bee4277761494a1527@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Cross-merge networking fixes after downstream PR (net-6.16-rc6-2).
No conflicts.
Adjacent changes:
drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
c701574c54 ("wifi: mt76: mt7925: fix invalid array index in ssid assignment during hw scan")
b3a431fe2e ("wifi: mt76: mt7925: fix off by one in mt7925_mcu_hw_scan()")
drivers/net/wireless/mediatek/mt76/mt7996/mac.c
62da647a2b ("wifi: mt76: mt7996: Add MLO support to mt7996_tx_check_aggr()")
dc66a129ad ("wifi: mt76: add a wrapper for wcid access with validation")
drivers/net/wireless/mediatek/mt76/mt7996/main.c
3dd6f67c66 ("wifi: mt76: Move RCU section in mt7996_mcu_add_rate_ctrl()")
8989d8e90f ("wifi: mt76: mt7996: Do not set wcid.sta to 1 in mt7996_mac_sta_event()")
net/mac80211/cfg.c
58fcb1b428 ("wifi: mac80211: reject VHT opmode for unsupported channel widths")
037dc18ac3 ("wifi: mac80211: add support for storing station S1G capabilities")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This is currently not initialized for a virtual monitor, leading to a
NULL pointer dereference when - for example - iterating over all the
keys of all the vifs.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250709233400.8dcefe578497.I4c90a00ae3256520e063199d7f6f2580d5451acf@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Currently, per-radio attributes are set on per-phy basis, i.e., all the
radios present in a wiphy will take attributes values sent from user. But
each radio in a wiphy can get different values from userspace based on
its requirement.
To extend support to set per-radio attributes, add support to get radio
index from userspace. Add an NL attribute - NL80211_ATTR_WIPHY_RADIO_INDEX,
to get user specified radio index for which attributes should be changed.
Pass this to individual drivers, so that the drivers can use this radio
index to change per-radio attributes when necessary. Currently, per-radio
attributes identified are:
NL80211_ATTR_WIPHY_TX_POWER_LEVEL
NL80211_ATTR_WIPHY_ANTENNA_TX
NL80211_ATTR_WIPHY_ANTENNA_RX
NL80211_ATTR_WIPHY_RETRY_SHORT
NL80211_ATTR_WIPHY_RETRY_LONG
NL80211_ATTR_WIPHY_FRAG_THRESHOLD
NL80211_ATTR_WIPHY_RTS_THRESHOLD
NL80211_ATTR_WIPHY_COVERAGE_CLASS
NL80211_ATTR_TXQ_LIMIT
NL80211_ATTR_TXQ_MEMORY_LIMIT
NL80211_ATTR_TXQ_QUANTUM
By default, the radio index is set to -1. This means the attribute should
be treated as a global configuration. If the user has not specified any
index, then the radio index passed to individual drivers would be -1. This
would indicate that the attribute applies to all radios in that wiphy.
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Link: https://patch.msgid.link/20250615082312.619639-2-quic_rdevanat@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
For MBSSID, each vif (struct ieee80211_vif) stores another vif
pointer for the transmitting profile of MBSSID set. This won't
suffice for MLO as there may be multiple links, each of which can
be part of different MBSSID sets. Hence the information needs to
be stored per-link. Additionally, the transmitted profile itself
may be part of an MLD hence storing vif will not suffice either.
Fix MLO by storing an instance of struct ieee80211_bss_conf
for each link.
Modify following operations to reflect the above structure updates:
- channel switch completion
- BSS color change completion
- Removing nontransmitted links in ieee80211_stop_mbssid()
- drivers retrieving the transmitted link for beacon templates.
Signed-off-by: Rameshkumar Sundaram <rameshkumar.sundaram@oss.qualcomm.com>
Co-developed-by: Muna Sinada <muna.sinada@oss.qualcomm.com>
Signed-off-by: Muna Sinada <muna.sinada@oss.qualcomm.com>
Co-developed-by: Aloka Dixit <aloka.dixit@oss.qualcomm.com>
Signed-off-by: Aloka Dixit <aloka.dixit@oss.qualcomm.com>
Link: https://patch.msgid.link/20250408184501.3715887-3-aloka.dixit@oss.qualcomm.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Currently, MLD links for an AP_VLAN interface type is not fully
supported.
Add allocation of separate links for each VLAN interface and copy
chanctx and chandef of AP bss to VLAN where necessary. Separate
links are created because for Dynamic VLAN each link will have its own
default_multicast_key.
Signed-off-by: Muna Sinada <muna.sinada@oss.qualcomm.com>
Link: https://patch.msgid.link/20250325213125.1509362-3-muna.sinada@oss.qualcomm.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
- iwlwifi: various build warning fixes (e.g. PM_SLEEP)
- iwlwifi: fix operation when FW reset handshake times out
- mac80211: drop pending frames on interface down
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Merge tag 'wireless-2025-04-11' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
Just a handful of fixes, notably
- iwlwifi: various build warning fixes (e.g. PM_SLEEP)
- iwlwifi: fix operation when FW reset handshake times out
- mac80211: drop pending frames on interface down
* tag 'wireless-2025-04-11' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
Revert "wifi: mac80211: Update skb's control block key in ieee80211_tx_dequeue()"
wifi: iwlwifi: mld: Restart firmware on iwl_mld_no_wowlan_resume() error
wifi: iwlwifi: pcie: set state to no-FW before reset handshake
wifi: wl1251: fix memory leak in wl1251_tx_work
wifi: brcmfmac: fix memory leak in brcmf_get_module_param
wifi: iwlwifi: mld: silence uninitialized variable warning
wifi: mac80211: Purge vif txq in ieee80211_do_stop()
wifi: mac80211: Update skb's control block key in ieee80211_tx_dequeue()
wifi: at76c50x: fix use after free access in at76_disconnect
wifi: add wireless list to MAINTAINERS
iwlwifi: mld: fix building with CONFIG_PM_SLEEP disabled
wifi: iwlwifi: mld: fix PM_SLEEP -Wundef warning
wifi: iwlwifi: mld: reduce scope for uninitialized variable
====================
Link: https://patch.msgid.link/20250411142354.24419-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree
over and remove the historical wrapper inlines.
Conversion was done with coccinelle plus manual fixups where necessary.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
After ieee80211_do_stop() SKB from vif's txq could still be processed.
Indeed another concurrent vif schedule_and_wake_txq call could cause
those packets to be dequeued (see ieee80211_handle_wake_tx_queue())
without checking the sdata current state.
Because vif.drv_priv is now cleared in this function, this could lead to
driver crash.
For example in ath12k, ahvif is store in vif.drv_priv. Thus if
ath12k_mac_op_tx() is called after ieee80211_do_stop(), ahvif->ah can be
NULL, leading the ath12k_warn(ahvif->ah,...) call in this function to
trigger the NULL deref below.
Unable to handle kernel paging request at virtual address dfffffc000000001
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
batman_adv: bat0: Interface deactivated: brbh1337
Mem abort info:
ESR = 0x0000000096000004
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x04: level 0 translation fault
Data abort info:
ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
CM = 0, WnR = 0, TnD = 0, TagAccess = 0
GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[dfffffc000000001] address between user and kernel address ranges
Internal error: Oops: 0000000096000004 [#1] SMP
CPU: 1 UID: 0 PID: 978 Comm: lbd Not tainted 6.13.0-g633f875b8f1e #114
Hardware name: HW (DT)
pstate: 10000005 (nzcV daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : ath12k_mac_op_tx+0x6cc/0x29b8 [ath12k]
lr : ath12k_mac_op_tx+0x174/0x29b8 [ath12k]
sp : ffffffc086ace450
x29: ffffffc086ace450 x28: 0000000000000000 x27: 1ffffff810d59ca4
x26: ffffff801d05f7c0 x25: 0000000000000000 x24: 000000004000001e
x23: ffffff8009ce4926 x22: ffffff801f9c0800 x21: ffffff801d05f7f0
x20: ffffff8034a19f40 x19: 0000000000000000 x18: ffffff801f9c0958
x17: ffffff800bc0a504 x16: dfffffc000000000 x15: ffffffc086ace4f8
x14: ffffff801d05f83c x13: 0000000000000000 x12: ffffffb003a0bf03
x11: 0000000000000000 x10: ffffffb003a0bf02 x9 : ffffff8034a19f40
x8 : ffffff801d05f818 x7 : 1ffffff0069433dc x6 : ffffff8034a19ee0
x5 : ffffff801d05f7f0 x4 : 0000000000000000 x3 : 0000000000000001
x2 : 0000000000000000 x1 : dfffffc000000000 x0 : 0000000000000008
Call trace:
ath12k_mac_op_tx+0x6cc/0x29b8 [ath12k] (P)
ieee80211_handle_wake_tx_queue+0x16c/0x260
ieee80211_queue_skb+0xeec/0x1d20
ieee80211_tx+0x200/0x2c8
ieee80211_xmit+0x22c/0x338
__ieee80211_subif_start_xmit+0x7e8/0xc60
ieee80211_subif_start_xmit+0xc4/0xee0
__ieee80211_subif_start_xmit_8023.isra.0+0x854/0x17a0
ieee80211_subif_start_xmit_8023+0x124/0x488
dev_hard_start_xmit+0x160/0x5a8
__dev_queue_xmit+0x6f8/0x3120
br_dev_queue_push_xmit+0x120/0x4a8
__br_forward+0xe4/0x2b0
deliver_clone+0x5c/0xd0
br_flood+0x398/0x580
br_dev_xmit+0x454/0x9f8
dev_hard_start_xmit+0x160/0x5a8
__dev_queue_xmit+0x6f8/0x3120
ip6_finish_output2+0xc28/0x1b60
__ip6_finish_output+0x38c/0x638
ip6_output+0x1b4/0x338
ip6_local_out+0x7c/0xa8
ip6_send_skb+0x7c/0x1b0
ip6_push_pending_frames+0x94/0xd0
rawv6_sendmsg+0x1a98/0x2898
inet_sendmsg+0x94/0xe0
__sys_sendto+0x1e4/0x308
__arm64_sys_sendto+0xc4/0x140
do_el0_svc+0x110/0x280
el0_svc+0x20/0x60
el0t_64_sync_handler+0x104/0x138
el0t_64_sync+0x154/0x158
To avoid that, empty vif's txq at ieee80211_do_stop() so no packet could
be dequeued after ieee80211_do_stop() (new packets cannot be queued
because SDATA_STATE_RUNNING is cleared at this point).
Fixes: ba8c3d6f16 ("mac80211: add an intermediate software queue implementation")
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Link: https://patch.msgid.link/ff7849e268562456274213c0476e09481a48f489.1742833382.git.repk@triplefau.lt
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Cross-merge networking fixes after downstream PR (net-6.14-rc6).
Conflicts:
net/ethtool/cabletest.c
2bcf4772e4 ("net: ethtool: try to protect all callback with netdev instance lock")
637399bf7e ("net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device")
No Adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Count open monitor interfaces regardless of the monitor interface type.
The new counter virt_monitors takes over counting interfaces depending
on the virtual monitor interface while monitors is used for all active
monitor interfaces.
This fixes monitor packet mirroring when using MONITOR_FLAG_ACTIVE or
NO_VIRTUAL_MONITOR interfaces.
Fixes: 286e696770 ("wifi: mac80211: Drop cooked monitor support")
Reported-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Closes: https://lore.kernel.org/r/cc715114-4e3b-619a-49dc-a4878075e1dc@quicinc.com
Signed-off-by: Alexander Wetzel <Alexander@wetzel-home.de>
Tested-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Link: https://patch.msgid.link/20250220094139.61459-1-Alexander@wetzel-home.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Don't call ieee80211_debugfs_recreate_netdev() for virtual monitor
interface when deleting it.
The virtual monitor interface shouldn't have debugfs entries and trying
to update them will *create* them on deletion.
And when the virtual monitor interface is created/destroyed multiple
times we'll get warnings about debugfs name conflicts.
Signed-off-by: Alexander Wetzel <Alexander@wetzel-home.de>
Link: https://patch.msgid.link/20250204164240.370153-1-Alexander@wetzel-home.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This wiphy work is canceled when the iface is stopped,
and shouldn't be queued for a non-running iface.
If it happens to be queued for a non-running iface (due to a bug)
it can cause a corruption of wiphy_work_list when ieee80211_setup_sdata
is called. Make sure to cancel it in this case and warn on.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20250205110958.99204c767c10.I84ce27a239059f6009cee197b252549a11426046@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add processing of negotiated TTLM tear down frame.
Handle this frame similar to the way a locally initiated
tear down is handled.
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/20250205110958.860691076786.I32df71182c25c5f84e4534f40efe1316926b8249@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add support for configuring EPCS state:
- When EPCS is enabled, send an EPCS enable request action frame
to the AP. When the AP replies with EPCS enable response, enable
EPCS by applying the QoS parameters provided by the AP. Do so for
all the valid MLD links. Once EPCS is enabled, support processing
of unsolicited EPCS enable response frames.
- When EPCS is disabled, send an EPCS teardown request to the AP
and apply the QoS parameters as obtained from the last received
beacons. Do so for all the valid links.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250205110958.7a90afd7e140.I3f602d65f5c1fd849d6c70b12307dda33aa91ccb@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Hostapd switched from cooked monitor interfaces to nl80211 Dec 2011.
Drop support for the outdated cooked monitor interfaces and fix
creating the virtual monitor interfaces in the following cases:
1) We have one non-monitor and one monitor interface with
%MONITOR_FLAG_ACTIVE enabled and then delete the non-monitor
interface.
2) We only have monitor interfaces enabled on resume while at least one
has %MONITOR_FLAG_ACTIVE set.
Signed-off-by: Alexander Wetzel <Alexander@wetzel-home.de>
Link: https://patch.msgid.link/20250204111352.7004-2-Alexander@wetzel-home.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add support for adding and removing station links:
- Adding links is done asynchronously, i.e., first
an ML reconfiguration action frame is sent to the AP
requesting to add links, and only when the AP replies,
links which were added successfully by the AP are added
locally.
- Removing links is done synchronously, i.e., the links
are removed before sending the ML reconfiguration
action frame to the AP (to avoid using this links after
the AP MLD removed them but before the station got the
ML reconfiguration response). In case the AP replies with a
status indicating that a link removal was not successful,
disconnect (as this should not happen an is an indication
that something might be wrong on the AP MLD).
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.ec0492a8dd21.I2869686642bbc0f86c40f284ebf7e6f644b551ab@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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>
Since adding support for opting out of virtual monitor support, a zero vif
addr was used to indicate passive vs active monitor to the driver.
This would break the vif->addr when changing the netdev mac address before
switching the interface from monitor to sta mode.
Fix the regression by adding a separate flag to indicate whether vif->addr
is valid.
Reported-by: syzbot+9ea265d998de25ac6a46@syzkaller.appspotmail.com
Fixes: 9d40f7e327 ("wifi: mac80211: add flag to opt out of virtual monitor support")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/20241115115850.37449-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If we got an unprotected action frame with CSA and then we heard the
beacon with the CSA IE, we'll block the queues with the CSA reason
twice. Since this reason is refcounted, we won't wake up the queues
since we wake them up only once and the ref count will never reach 0.
This led to blocked queues that prevented any activity (even
disconnection wouldn't reset the queue state and the only way to recover
would be to reload the kernel module.
Fix this by not refcounting the CSA reason.
It becomes now pointless to maintain the csa_blocked_queues state.
Remove it.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Fixes: 414e090bc4 ("wifi: mac80211: restrict public action ECSA frame handling")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219447
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241119173108.5ea90828c2cc.I4f89e58572fb71ae48e47a81e74595cac410fbac@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If changed is '0', then the ieee80211_hw_config takes no
action, so just remove the call in
__ieee809211_recalc_txpower()
Signed-off-by: Ben Greear <greearb@candelatech.com>
Link: https://patch.msgid.link/20241010204036.1219896-1-greearb@candelatech.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
