cfg80211: support an active monitor interface flag

An active monitor interface is one that is used for communication (via
injection). It is expected to ACK incoming unicast packets. This is
useful for running various 802.11 testing utilities that associate to an
AP via injection and manage the state in user space.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 32b060ea5266..5920715278c2 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2428,6 +2428,8 @@ enum nl80211_survey_info {
  * @NL80211_MNTR_FLAG_OTHER_BSS: disable BSSID filtering
  * @NL80211_MNTR_FLAG_COOK_FRAMES: report frames after processing.
  *      overrides all other flags.
+ * @NL80211_MNTR_FLAG_ACTIVE: use the configured MAC address
+ *      and ACK incoming unicast packets.
  *
  * @__NL80211_MNTR_FLAG_AFTER_LAST: internal use
  * @NL80211_MNTR_FLAG_MAX: highest possible monitor flag
@@ -2439,6 +2441,7 @@ enum nl80211_mntr_flags {
         NL80211_MNTR_FLAG_CONTROL,
         NL80211_MNTR_FLAG_OTHER_BSS,
         NL80211_MNTR_FLAG_COOK_FRAMES,
+        NL80211_MNTR_FLAG_ACTIVE,
 
         /* keep last */
         __NL80211_MNTR_FLAG_AFTER_LAST,
@@ -3595,6 +3598,7 @@ enum nl80211_feature_flags {
         NL80211_FEATURE_ADVERTISE_CHAN_LIMITS           = 1 << 14,
         NL80211_FEATURE_FULL_AP_CLIENT_STATE            = 1 << 15,
         NL80211_FEATURE_USERSPACE_MPM                   = 1 << 16,
+        NL80211_FEATURE_ACTIVE_MONITOR                  = 1 << 17,
 };
 
 /**