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| author |   James Prestwood <prestwoj@gmail.com> | 2022-08-26 10:00:31 -0700 |
|---|---|---|
| committer |   Johannes Berg <johannes.berg@intel.com> | 2022-09-03 16:58:41 +0200 |
| commit | a36c421690b3e5dee38fc12abfcabda742f00064 (patch) | |
| tree | 6aa5ce5b713c7d109fff63b1b35518a1d1ce2836 | |
| parent | wifi: mac80211: prevent 4-addr use on MLDs (diff) | |
| download | linux-dev-a36c421690b3e5dee38fc12abfcabda742f00064.tar.xz linux-dev-a36c421690b3e5dee38fc12abfcabda742f00064.zip | |
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: James Prestwood <prestwoj@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | include/uapi/linux/nl80211.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 573db20403dc..a00a23840c57 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -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, |