proxyarp: Try multicast-to-unicast conversion only for authorized STAs

There is no point in trying to send the unicast converted version to a
STA that is not in authorized state since the driver would be expected
to drop normal TX Data frames in such state.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

src/ap/dhcp_snoop.c

@@ -130,9 +130,12 @@ static void handle_dhcp(void *ctx, const u8 *src_addr, const u8 *buf,
 	}
 
 	if (hapd->conf->disable_dgaf && is_broadcast_ether_addr(buf)) {
-		for (sta = hapd->sta_list; sta; sta = sta->next)
+		for (sta = hapd->sta_list; sta; sta = sta->next) {
+			if (!(sta->flags & WLAN_STA_AUTHORIZED))
+				continue;
 			x_snoop_mcast_to_ucast_convert_send(hapd, sta,
 							    (u8 *) buf, len);
+		}
 	}
 }
 

src/ap/ndisc_snoop.c

@@ -136,6 +136,8 @@ static void handle_ndisc(void *ctx, const u8 *src_addr, const u8 *buf,
 		/* fall through */
 	case NEIGHBOR_ADVERTISEMENT:
 		for (sta = hapd->sta_list; sta; sta = sta->next) {
+			if (!(sta->flags & WLAN_STA_AUTHORIZED))
+				continue;
 			x_snoop_mcast_to_ucast_convert_send(hapd, sta,
 							    (u8 *) buf, len);
 		}