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-rw-r--r--include/uapi/linux/nl80211.h6
-rw-r--r--net/wireless/mlme.c21
2 files changed, 25 insertions, 2 deletions
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 174f4b30e804..908886c83894 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -4699,6 +4699,10 @@ enum nl80211_feature_flags {
* configuration (AP/mesh) with VHT rates.
* @NL80211_EXT_FEATURE_FILS_STA: This driver supports Fast Initial Link Setup
* with user space SME (NL80211_CMD_AUTHENTICATE) in station mode.
+ * @NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA: This driver supports randomized TA
+ * in @NL80211_CMD_FRAME while not associated.
+ * @NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA_CONNECTED: This driver supports
+ * randomized TA in @NL80211_CMD_FRAME while associated.
*
* @NUM_NL80211_EXT_FEATURES: number of extended features.
* @MAX_NL80211_EXT_FEATURES: highest extended feature index.
@@ -4714,6 +4718,8 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_BEACON_RATE_HT,
NL80211_EXT_FEATURE_BEACON_RATE_VHT,
NL80211_EXT_FEATURE_FILS_STA,
+ NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA,
+ NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA_CONNECTED,
/* add new features before the definition below */
NUM_NL80211_EXT_FEATURES,
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 1c63a77aea34..b876f40c9dad 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -662,8 +662,25 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
return err;
}
- if (!ether_addr_equal(mgmt->sa, wdev_address(wdev)))
- return -EINVAL;
+ if (!ether_addr_equal(mgmt->sa, wdev_address(wdev))) {
+ /* Allow random TA to be used with Public Action frames if the
+ * driver has indicated support for this. Otherwise, only allow
+ * the local address to be used.
+ */
+ if (!ieee80211_is_action(mgmt->frame_control) ||
+ mgmt->u.action.category != WLAN_CATEGORY_PUBLIC)
+ return -EINVAL;
+ if (!wdev->current_bss &&
+ !wiphy_ext_feature_isset(
+ &rdev->wiphy,
+ NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA))
+ return -EINVAL;
+ if (wdev->current_bss &&
+ !wiphy_ext_feature_isset(
+ &rdev->wiphy,
+ NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA_CONNECTED))
+ return -EINVAL;
+ }
/* Transmit the Action frame as requested by user space */
return rdev_mgmt_tx(rdev, wdev, params, cookie);