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wifi: cfg80211/nl80211: add STA-mode peer probing

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Add NL80211_EXT_FEATURE_PROBE_AP to allow drivers to advertise
support for probing the associated AP from STA/P2P-client mode.

Extend nl80211_probe_peer() to accept STA/P2P-client interfaces
when the driver advertises NL80211_EXT_FEATURE_PROBE_AP; in that
case the MAC attribute must be omitted (the peer is implied by
the association).

Update cfg80211_probe_status() to accept an optional peer address
and a link_id parameter (-1 for non-MLO), and include
NL80211_ATTR_MLO_LINK_ID in the event when link_id >= 0.
Update all callers.

Signed-off-by: Priyansha Tiwari <priyansha.tiwari@oss.qualcomm.com>
Link: https://patch.msgid.link/20260611062225.2144241-3-pritiwa@qti.qualcomm.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Priyansha Tiwari
2026-06-11 11:52:23 +05:30
committed by Johannes Berg
parent 4ab9b637b9
commit 010e955c20
5 changed files with 59 additions and 31 deletions
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20
include/uapi/linux/nl80211.h
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@@ -922,13 +922,15 @@
* and wasn't already in a 4-addr VLAN. The event will be sent similarly
* to the %NL80211_CMD_UNEXPECTED_FRAME event, to the same listener.
*
* @NL80211_CMD_PROBE_PEER: Probe an associated station on an AP interface
* by sending a null data frame to it and reporting when the frame is
* acknowledged. This is used to allow timing out inactive clients. Uses
* %NL80211_ATTR_IFINDEX and %NL80211_ATTR_MAC. The command returns a
* direct reply with an %NL80211_ATTR_COOKIE that is later used to match
* up the event with the request. The event includes the same data and
* has %NL80211_ATTR_ACK set if the frame was ACKed.
* @NL80211_CMD_PROBE_PEER: Probe a connected peer by sending a null data
* frame and reporting when the frame is acknowledged.
* In AP/GO mode, %NL80211_ATTR_MAC is required to identify the client.
* In STA/P2P-client mode, %NL80211_ATTR_MAC must be omitted (the AP is
* implied); the driver must advertise %NL80211_EXT_FEATURE_PROBE_AP.
* The command returns a direct reply with an %NL80211_ATTR_COOKIE that
* is later used to match up the event with the request. The event
* includes the same data and has %NL80211_ATTR_ACK set if the frame
* was ACKed.
*
* @NL80211_CMD_REGISTER_BEACONS: Register this socket to receive beacons from
* other BSSes when any interfaces are in AP mode. This helps implement
@@ -7086,6 +7088,9 @@ enum nl80211_feature_flags {
* LTF key seed via %NL80211_KEY_LTF_SEED. The seed is used to generate
* secure LTF keys for secure LTF measurement sessions.
*
* @NL80211_EXT_FEATURE_PROBE_AP: Driver supports probing the associated AP
* in STA mode using @NL80211_CMD_PROBE_PEER.
*
* @NUM_NL80211_EXT_FEATURES: number of extended features.
* @MAX_NL80211_EXT_FEATURES: highest extended feature index.
*/
@@ -7167,6 +7172,7 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_IEEE8021X_AUTH,
NL80211_EXT_FEATURE_ROC_ADDR_FILTER,
NL80211_EXT_FEATURE_SET_KEY_LTF_SEED,
NL80211_EXT_FEATURE_PROBE_AP,
/* add new features before the definition below */
NUM_NL80211_EXT_FEATURES,