Commit a36c4216 authored by James Prestwood's avatar James Prestwood Committed by Johannes Berg
Browse files

wifi: nl80211: Add POWERED_ADDR_CHANGE feature 



Add a new extended feature bit signifying that the wireless hardware
supports changing the MAC address while the underlying net_device is
powered. Note that this has a different meaning from
IFF_LIVE_ADDR_CHANGE as additional restrictions might be imposed by
the hardware, such as:

 - No connection is active on this interface, carrier is off
 - No scan is in progress
 - No offchannel operations are in progress

Signed-off-by: default avatarJames Prestwood <prestwoj@gmail.com>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 90703ba9

include/uapi/linux/nl80211.h

+9 −0
Original line number Diff line number Diff line
@@ -6281,6 +6281,14 @@ enum nl80211_feature_flags { 
 * @NL80211_EXT_FEATURE_RADAR_BACKGROUND: Device supports background radar/CAC

 *	detection.

 *

 * @NL80211_EXT_FEATURE_POWERED_ADDR_CHANGE: Device can perform a MAC address

 *	change without having to bring the underlying network device down

 *	first. For example, in station mode this can be used to vary the

 *	origin MAC address prior to a connection to a new AP for privacy

 *	or other reasons. Note that certain driver specific restrictions

 *	might apply, e.g. no scans in progress, no offchannel operations

 *	in progress, and no active connections.

 *

 * @NUM_NL80211_EXT_FEATURES: number of extended features.

 * @MAX_NL80211_EXT_FEATURES: highest extended feature index.

 */
@@ -6348,6 +6356,7 @@ enum nl80211_ext_feature_index { 
	NL80211_EXT_FEATURE_BSS_COLOR,

	NL80211_EXT_FEATURE_FILS_CRYPTO_OFFLOAD,

	NL80211_EXT_FEATURE_RADAR_BACKGROUND,

	NL80211_EXT_FEATURE_POWERED_ADDR_CHANGE,



	/* add new features before the definition below */

	NUM_NL80211_EXT_FEATURES,