45 static u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,  in ieee80211_get_bssid()  argument
48 	__le16 fc = hdr->frame_control;  in ieee80211_get_bssid()
57 			return hdr->addr1;  in ieee80211_get_bssid()
59 			return hdr->addr2;  in ieee80211_get_bssid()
61 		return hdr->addr3;  in ieee80211_get_bssid()
67 		return hdr->addr3;  in ieee80211_get_bssid()
72 			return hdr->addr1;  in ieee80211_get_bssid()
77 				return hdr->addr2;  in ieee80211_get_bssid()
80 				return hdr->addr1;  in ieee80211_get_bssid()
120 	struct ieee80211_hdr *hdr;  in should_drop_frame()  local
122 	hdr = (void *)(skb->data + rtap_vendor_space);  in should_drop_frame()
131 	if (ieee80211_is_ctl(hdr->frame_control) &&  in should_drop_frame()
132 	    !ieee80211_is_pspoll(hdr->frame_control) &&  in should_drop_frame()
133 	    !ieee80211_is_back_req(hdr->frame_control))  in should_drop_frame()
596 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;  in ieee80211_parse_qos()  local
601 	if (ieee80211_is_data_qos(hdr->frame_control)) {  in ieee80211_parse_qos()
602 		u8 *qc = ieee80211_get_qos_ctl(hdr);  in ieee80211_parse_qos()
624 		if (ieee80211_is_mgmt(hdr->frame_control))  in ieee80211_parse_qos()
674 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;  in ieee80211_is_unicast_robust_mgmt_frame()  local
676 	if (is_multicast_ether_addr(hdr->addr1))  in ieee80211_is_unicast_robust_mgmt_frame()
685 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;  in ieee80211_is_multicast_robust_mgmt_frame()  local
687 	if (!is_multicast_ether_addr(hdr->addr1))  in ieee80211_is_multicast_robust_mgmt_frame()
697 	struct ieee80211_mgmt *hdr = (struct ieee80211_mgmt *) skb->data;  in ieee80211_get_mmie_keyidx()  local
701 	if (skb->len < 24 + sizeof(*mmie) || !is_multicast_ether_addr(hdr->da))  in ieee80211_get_mmie_keyidx()
726 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;  in iwl80211_get_cs_keyid()  local
731 	fc = hdr->frame_control;  in iwl80211_get_cs_keyid()
746 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;  in ieee80211_rx_mesh_check()  local
749 	if (ieee80211_is_data(hdr->frame_control)) {  in ieee80211_rx_mesh_check()
750 		if (is_multicast_ether_addr(hdr->addr1)) {  in ieee80211_rx_mesh_check()
751 			if (ieee80211_has_tods(hdr->frame_control) ||  in ieee80211_rx_mesh_check()
752 			    !ieee80211_has_fromds(hdr->frame_control))  in ieee80211_rx_mesh_check()
754 			if (ether_addr_equal(hdr->addr3, dev_addr))  in ieee80211_rx_mesh_check()
757 			if (!ieee80211_has_a4(hdr->frame_control))  in ieee80211_rx_mesh_check()
759 			if (ether_addr_equal(hdr->addr4, dev_addr))  in ieee80211_rx_mesh_check()
771 		if (!ieee80211_is_mgmt(hdr->frame_control))  in ieee80211_rx_mesh_check()
774 		if (ieee80211_is_action(hdr->frame_control)) {  in ieee80211_rx_mesh_check()
781 			mgmt = (struct ieee80211_mgmt *)hdr;  in ieee80211_rx_mesh_check()
789 		if (ieee80211_is_probe_req(hdr->frame_control) ||  in ieee80211_rx_mesh_check()
790 		    ieee80211_is_probe_resp(hdr->frame_control) ||  in ieee80211_rx_mesh_check()
791 		    ieee80211_is_beacon(hdr->frame_control) ||  in ieee80211_rx_mesh_check()
792 		    ieee80211_is_auth(hdr->frame_control))  in ieee80211_rx_mesh_check()
944 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;  in ieee80211_sta_manage_reorder_buf()  local
946 	u16 sc = le16_to_cpu(hdr->seq_ctrl);  in ieee80211_sta_manage_reorder_buf()
1032 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;  in ieee80211_rx_reorder_ampdu()  local
1038 	if (!ieee80211_is_data_qos(hdr->frame_control) ||  in ieee80211_rx_reorder_ampdu()
1039 	    is_multicast_ether_addr(hdr->addr1))  in ieee80211_rx_reorder_ampdu()
1050 	ack_policy = *ieee80211_get_qos_ctl(hdr) &  in ieee80211_rx_reorder_ampdu()
1052 	tid = *ieee80211_get_qos_ctl(hdr) & IEEE80211_QOS_CTL_TID_MASK;  in ieee80211_rx_reorder_ampdu()
1059 	if (unlikely(hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_NULLFUNC)))  in ieee80211_rx_reorder_ampdu()
1074 	sc = le16_to_cpu(hdr->seq_ctrl);  in ieee80211_rx_reorder_ampdu()
1100 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;  in ieee80211_rx_h_check_dup()  local
1111 	if (ieee80211_is_ctl(hdr->frame_control) ||  in ieee80211_rx_h_check_dup()
1112 	    ieee80211_is_qos_nullfunc(hdr->frame_control) ||  in ieee80211_rx_h_check_dup()
1113 	    is_multicast_ether_addr(hdr->addr1))  in ieee80211_rx_h_check_dup()
1119 	if (unlikely(ieee80211_has_retry(hdr->frame_control) &&  in ieee80211_rx_h_check_dup()
1120 		     rx->sta->last_seq_ctrl[rx->seqno_idx] == hdr->seq_ctrl)) {  in ieee80211_rx_h_check_dup()
1125 		rx->sta->last_seq_ctrl[rx->seqno_idx] = hdr->seq_ctrl;  in ieee80211_rx_h_check_dup()
1134 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;  in ieee80211_rx_h_check()  local
1148 	if (unlikely((ieee80211_is_data(hdr->frame_control) ||  in ieee80211_rx_h_check()
1149 		      ieee80211_is_pspoll(hdr->frame_control)) &&  in ieee80211_rx_h_check()
1160 		    ieee80211_is_data_present(hdr->frame_control)) {  in ieee80211_rx_h_check()
1164 			hdrlen = ieee80211_hdrlen(hdr->frame_control);  in ieee80211_rx_h_check()
1176 					       hdr->addr2,  in ieee80211_rx_h_check()
1191 	struct ieee80211_hdr *hdr;  in ieee80211_rx_h_check_more_data()  local
1196 	hdr = (struct ieee80211_hdr *) skb->data;  in ieee80211_rx_h_check_more_data()
1201 	if (!ieee80211_has_fromds(hdr->frame_control))  in ieee80211_rx_h_check_more_data()
1205 	if (!ieee80211_is_data(hdr->frame_control))  in ieee80211_rx_h_check_more_data()
1208 	if (!ieee80211_has_moredata(hdr->frame_control)) {  in ieee80211_rx_h_check_more_data()
1303 	struct ieee80211_hdr *hdr = (void *)rx->skb->data;  in ieee80211_rx_h_uapsd_and_pspoll()  local
1330 	if (unlikely(ieee80211_is_pspoll(hdr->frame_control))) {  in ieee80211_rx_h_uapsd_and_pspoll()
1343 	} else if (!ieee80211_has_morefrags(hdr->frame_control) &&  in ieee80211_rx_h_uapsd_and_pspoll()
1345 		   ieee80211_has_pm(hdr->frame_control) &&  in ieee80211_rx_h_uapsd_and_pspoll()
1346 		   (ieee80211_is_data_qos(hdr->frame_control) ||  in ieee80211_rx_h_uapsd_and_pspoll()
1347 		    ieee80211_is_qos_nullfunc(hdr->frame_control))) {  in ieee80211_rx_h_uapsd_and_pspoll()
1348 		tid = *ieee80211_get_qos_ctl(hdr) & IEEE80211_QOS_CTL_TID_MASK;  in ieee80211_rx_h_uapsd_and_pspoll()
1380 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;  in ieee80211_rx_h_sta_process()  local
1395 		u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len,  in ieee80211_rx_h_sta_process()
1400 			if (ieee80211_is_data(hdr->frame_control) &&  in ieee80211_rx_h_sta_process()
1401 			    !is_multicast_ether_addr(hdr->addr1)) {  in ieee80211_rx_h_sta_process()
1414 	} else if (!is_multicast_ether_addr(hdr->addr1)) {  in ieee80211_rx_h_sta_process()
1420 		if (ieee80211_is_data(hdr->frame_control)) {  in ieee80211_rx_h_sta_process()
1429 		ieee80211_sta_rx_notify(rx->sdata, hdr);  in ieee80211_rx_h_sta_process()
1457 	    !ieee80211_has_morefrags(hdr->frame_control) &&  in ieee80211_rx_h_sta_process()
1465 	    (!ieee80211_is_mgmt(hdr->frame_control) ||  in ieee80211_rx_h_sta_process()
1466 	     ieee80211_is_bufferable_mmpdu(hdr->frame_control))) {  in ieee80211_rx_h_sta_process()
1468 			if (!ieee80211_has_pm(hdr->frame_control))  in ieee80211_rx_h_sta_process()
1471 			if (ieee80211_has_pm(hdr->frame_control))  in ieee80211_rx_h_sta_process()
1478 		ieee80211_mps_rx_h_sta_process(sta, hdr);  in ieee80211_rx_h_sta_process()
1484 	if (ieee80211_is_nullfunc(hdr->frame_control) ||  in ieee80211_rx_h_sta_process()
1485 	    ieee80211_is_qos_nullfunc(hdr->frame_control)) {  in ieee80211_rx_h_sta_process()
1494 		if (ieee80211_has_a4(hdr->frame_control) &&  in ieee80211_rx_h_sta_process()
1521 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;  in ieee80211_rx_h_decrypt()  local
1559 	fc = hdr->frame_control;  in ieee80211_rx_h_decrypt()
1576 	if (!is_multicast_ether_addr(hdr->addr1) && sta_ptk) {  in ieee80211_rx_h_decrypt()
1609 		    is_multicast_ether_addr(hdr->addr1) &&  in ieee80211_rx_h_decrypt()
1666 		if (is_multicast_ether_addr(hdr->addr1) && rx->sta)  in ieee80211_rx_h_decrypt()
1681 			    !is_multicast_ether_addr(hdr->addr1))  in ieee80211_rx_h_decrypt()
1766 			  int rx_queue, struct ieee80211_hdr *hdr)  in ieee80211_reassemble_find()  argument
1790 		if (((hdr->frame_control ^ f_hdr->frame_control) &  in ieee80211_reassemble_find()
1792 		    !ether_addr_equal(hdr->addr1, f_hdr->addr1) ||  in ieee80211_reassemble_find()
1793 		    !ether_addr_equal(hdr->addr2, f_hdr->addr2))  in ieee80211_reassemble_find()
1809 	struct ieee80211_hdr *hdr;  in ieee80211_rx_h_defragment()  local
1817 	hdr = (struct ieee80211_hdr *)rx->skb->data;  in ieee80211_rx_h_defragment()
1818 	fc = hdr->frame_control;  in ieee80211_rx_h_defragment()
1823 	sc = le16_to_cpu(hdr->seq_ctrl);  in ieee80211_rx_h_defragment()
1826 	if (is_multicast_ether_addr(hdr->addr1)) {  in ieee80211_rx_h_defragment()
1844 	hdr = (struct ieee80211_hdr *)rx->skb->data;  in ieee80211_rx_h_defragment()
1882 					  rx->seqno_idx, hdr);  in ieee80211_rx_h_defragment()
1983 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;  in ieee80211_drop_unencrypted_mgmt()  local
1985 	__le16 fc = hdr->frame_control;  in ieee80211_drop_unencrypted_mgmt()
2031 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;  in __ieee80211_data_to_8023()  local
2037 	if (ieee80211_has_a4(hdr->frame_control) &&  in __ieee80211_data_to_8023()
2042 	    !!sdata->u.mgd.use_4addr != !!ieee80211_has_a4(hdr->frame_control)) {  in __ieee80211_data_to_8023()
2050 	if (is_multicast_ether_addr(hdr->addr1) &&  in __ieee80211_data_to_8023()
2192 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;  in ieee80211_rx_h_amsdu()  local
2193 	__le16 fc = hdr->frame_control;  in ieee80211_rx_h_amsdu()
2206 	if (ieee80211_has_a4(hdr->frame_control) &&  in ieee80211_rx_h_amsdu()
2211 	if (is_multicast_ether_addr(hdr->addr1) &&  in ieee80211_rx_h_amsdu()
2246 	struct ieee80211_hdr *fwd_hdr, *hdr;  in ieee80211_rx_h_mesh_fwding()  local
2255 	hdr = (struct ieee80211_hdr *) skb->data;  in ieee80211_rx_h_mesh_fwding()
2256 	hdrlen = ieee80211_hdrlen(hdr->frame_control);  in ieee80211_rx_h_mesh_fwding()
2270 	hdr = (struct ieee80211_hdr *) skb->data;  in ieee80211_rx_h_mesh_fwding()
2273 	if (ieee80211_drop_unencrypted(rx, hdr->frame_control))  in ieee80211_rx_h_mesh_fwding()
2277 	if (ieee80211_is_data(hdr->frame_control) &&  in ieee80211_rx_h_mesh_fwding()
2278 	    is_multicast_ether_addr(hdr->addr1) &&  in ieee80211_rx_h_mesh_fwding()
2279 	    mesh_rmc_check(rx->sdata, hdr->addr3, mesh_hdr))  in ieee80211_rx_h_mesh_fwding()
2282 	if (!ieee80211_is_data(hdr->frame_control))  in ieee80211_rx_h_mesh_fwding()
2293 		if (is_multicast_ether_addr(hdr->addr1)) {  in ieee80211_rx_h_mesh_fwding()
2294 			mpp_addr = hdr->addr3;  in ieee80211_rx_h_mesh_fwding()
2298 			mpp_addr = hdr->addr4;  in ieee80211_rx_h_mesh_fwding()
2318 	if (!is_multicast_ether_addr(hdr->addr1) &&  in ieee80211_rx_h_mesh_fwding()
2319 	    ether_addr_equal(sdata->vif.addr, hdr->addr3))  in ieee80211_rx_h_mesh_fwding()
2322 	ac = ieee80211_select_queue_80211(sdata, skb, hdr);  in ieee80211_rx_h_mesh_fwding()
2374 	if (is_multicast_ether_addr(hdr->addr1))  in ieee80211_rx_h_mesh_fwding()
2386 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;  in ieee80211_rx_h_data()  local
2387 	__le16 fc = hdr->frame_control;  in ieee80211_rx_h_data()
2391 	if (unlikely(!ieee80211_is_data(hdr->frame_control)))  in ieee80211_rx_h_data()
2394 	if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))  in ieee80211_rx_h_data()
2410 	if (ieee80211_has_a4(hdr->frame_control) &&  in ieee80211_rx_h_data()
3304 	struct ieee80211_hdr *hdr = (void *)skb->data;  in ieee80211_accept_frame()  local
3306 	u8 *bssid = ieee80211_get_bssid(hdr, skb->len, sdata->vif.type);  in ieee80211_accept_frame()
3307 	int multicast = is_multicast_ether_addr(hdr->addr1);  in ieee80211_accept_frame()
3315 		return ether_addr_equal(sdata->vif.addr, hdr->addr1);  in ieee80211_accept_frame()
3319 		if (ether_addr_equal(sdata->vif.addr, hdr->addr2) ||  in ieee80211_accept_frame()
3320 		    ether_addr_equal(sdata->u.ibss.bssid, hdr->addr2))  in ieee80211_accept_frame()
3322 		if (ieee80211_is_beacon(hdr->frame_control))  in ieee80211_accept_frame()
3327 		    !ether_addr_equal(sdata->vif.addr, hdr->addr1))  in ieee80211_accept_frame()
3335 			ieee80211_ibss_rx_no_sta(sdata, bssid, hdr->addr2,  in ieee80211_accept_frame()
3342 		if (!ieee80211_is_data_present(hdr->frame_control))  in ieee80211_accept_frame()
3347 		    !ether_addr_equal(sdata->dev->dev_addr, hdr->addr1))  in ieee80211_accept_frame()
3355 			ieee80211_ocb_rx_no_sta(sdata, bssid, hdr->addr2,  in ieee80211_accept_frame()
3362 		return ether_addr_equal(sdata->vif.addr, hdr->addr1);  in ieee80211_accept_frame()
3366 			return ether_addr_equal(sdata->vif.addr, hdr->addr1);  in ieee80211_accept_frame()
3376 			    !ether_addr_equal(sdata->vif.addr, hdr->addr1))  in ieee80211_accept_frame()
3378 			if (ieee80211_is_public_action(hdr, skb->len))  in ieee80211_accept_frame()
3380 			return ieee80211_is_beacon(hdr->frame_control);  in ieee80211_accept_frame()
3383 		if (!ieee80211_has_tods(hdr->frame_control)) {  in ieee80211_accept_frame()
3385 			if (ieee80211_is_data(hdr->frame_control))  in ieee80211_accept_frame()
3388 			if (ieee80211_is_action(hdr->frame_control) &&  in ieee80211_accept_frame()
3390 			    !ether_addr_equal(bssid, hdr->addr1))  in ieee80211_accept_frame()
3395 		if (bssid || !ieee80211_is_data(hdr->frame_control))  in ieee80211_accept_frame()
3397 		return ether_addr_equal(sdata->u.wds.remote_addr, hdr->addr2);  in ieee80211_accept_frame()
3399 		return ieee80211_is_public_action(hdr, skb->len) ||  in ieee80211_accept_frame()
3400 		       ieee80211_is_probe_req(hdr->frame_control) ||  in ieee80211_accept_frame()
3401 		       ieee80211_is_probe_resp(hdr->frame_control) ||  in ieee80211_accept_frame()
3402 		       ieee80211_is_beacon(hdr->frame_control);  in ieee80211_accept_frame()
3455 	struct ieee80211_hdr *hdr;  in __ieee80211_rx_handle_packet()  local
3487 	hdr = (struct ieee80211_hdr *)skb->data;  in __ieee80211_rx_handle_packet()
3491 	if (unlikely(ieee80211_is_probe_resp(hdr->frame_control) ||  in __ieee80211_rx_handle_packet()
3492 		     ieee80211_is_beacon(hdr->frame_control)))  in __ieee80211_rx_handle_packet()
3502 		for_each_sta_info(local, tbl, hdr->addr2, sta, tmp) {  in __ieee80211_rx_handle_packet()
3546 		rx.sta = sta_info_get_bss(prev, hdr->addr2);  in __ieee80211_rx_handle_packet()
3554 		rx.sta = sta_info_get_bss(prev, hdr->addr2);  in __ieee80211_rx_handle_packet()