1 files changed, 52 insertions, 13 deletions

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index bf7fe6cd9dfc..1be8c9d83d6a 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -576,6 +576,51 @@ ieee80211_tx_h_check_control_port_protocol(struct ieee80211_tx_data *tx)
 	return TX_CONTINUE;
 }
 
+static struct ieee80211_key *
+ieee80211_select_link_key(struct ieee80211_tx_data *tx)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+	enum {
+		USE_NONE,
+		USE_MGMT_KEY,
+		USE_MCAST_KEY,
+	} which_key = USE_NONE;
+	struct ieee80211_link_data *link;
+	unsigned int link_id;
+
+	if (ieee80211_is_group_privacy_action(tx->skb))
+		which_key = USE_MCAST_KEY;
+	else if (ieee80211_is_mgmt(hdr->frame_control) &&
+		 is_multicast_ether_addr(hdr->addr1) &&
+		 ieee80211_is_robust_mgmt_frame(tx->skb))
+		which_key = USE_MGMT_KEY;
+	else if (is_multicast_ether_addr(hdr->addr1))
+		which_key = USE_MCAST_KEY;
+	else
+		return NULL;
+
+	link_id = u32_get_bits(info->control.flags, IEEE80211_TX_CTRL_MLO_LINK);
+	if (link_id == IEEE80211_LINK_UNSPECIFIED) {
+		link = &tx->sdata->deflink;
+	} else {
+		link = rcu_dereference(tx->sdata->link[link_id]);
+		if (!link)
+			return NULL;
+	}
+
+	switch (which_key) {
+	case USE_NONE:
+		break;
+	case USE_MGMT_KEY:
+		return rcu_dereference(link->default_mgmt_key);
+	case USE_MCAST_KEY:
+		return rcu_dereference(link->default_multicast_key);
+	}
+
+	return NULL;
+}
+
 static ieee80211_tx_result debug_noinline
 ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
 {
@@ -591,16 +636,7 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
 	if (tx->sta &&
 	    (key = rcu_dereference(tx->sta->ptk[tx->sta->ptk_idx])))
 		tx->key = key;
-	else if (ieee80211_is_group_privacy_action(tx->skb) &&
-		(key = rcu_dereference(tx->sdata->deflink.default_multicast_key)))
-		tx->key = key;
-	else if (ieee80211_is_mgmt(hdr->frame_control) &&
-		 is_multicast_ether_addr(hdr->addr1) &&
-		 ieee80211_is_robust_mgmt_frame(tx->skb) &&
-		 (key = rcu_dereference(tx->sdata->deflink.default_mgmt_key)))
-		tx->key = key;
-	else if (is_multicast_ether_addr(hdr->addr1) &&
-		 (key = rcu_dereference(tx->sdata->deflink.default_multicast_key)))
+	else if ((key = ieee80211_select_link_key(tx)))
 		tx->key = key;
 	else if (!is_multicast_ether_addr(hdr->addr1) &&
 		 (key = rcu_dereference(tx->sdata->default_unicast_key)))
@@ -2640,7 +2676,8 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
 				goto free;
 			}
 			memcpy(hdr.addr2, link->conf->addr, ETH_ALEN);
-		} else if (link_id == IEEE80211_LINK_UNSPECIFIED) {
+		} else if (link_id == IEEE80211_LINK_UNSPECIFIED ||
+			   (sta && sta->sta.mlo)) {
 			memcpy(hdr.addr2, sdata->vif.addr, ETH_ALEN);
 		} else {
 			struct ieee80211_bss_conf *conf;
@@ -3735,8 +3772,8 @@ begin:
 			     !test_sta_flag(tx.sta, WLAN_STA_AUTHORIZED) &&
 			     (!(info->control.flags &
 				IEEE80211_TX_CTRL_PORT_CTRL_PROTO) ||
-			      !ether_addr_equal(tx.sdata->vif.addr,
-						hdr->addr2)))) {
+			      !ieee80211_is_our_addr(tx.sdata, hdr->addr2,
+						     NULL)))) {
 			I802_DEBUG_INC(local->tx_handlers_drop_unauth_port);
 			ieee80211_free_txskb(&local->hw, skb);
 			goto begin;
@@ -5061,6 +5098,8 @@ ieee80211_beacon_get_finish(struct ieee80211_hw *hw,
 	rate_control_get_rate(sdata, NULL, &txrc);
 
 	info->control.vif = vif;
+	info->control.flags |= u32_encode_bits(link->link_id,
+					       IEEE80211_TX_CTRL_MLO_LINK);
 	info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT |
 		       IEEE80211_TX_CTL_ASSIGN_SEQ |
 		       IEEE80211_TX_CTL_FIRST_FRAGMENT;