32 static void libipw_monitor_rx(struct libipw_device *ieee,  in libipw_monitor_rx()  argument
39 	skb->dev = ieee->dev;  in libipw_monitor_rx()
51 							      *ieee,  in libipw_frag_cache_find()
61 		entry = &ieee->frag_cache[i];  in libipw_frag_cache_find()
82 static struct sk_buff *libipw_frag_cache_get(struct libipw_device *ieee,  in libipw_frag_cache_get()  argument
96 		skb = dev_alloc_skb(ieee->dev->mtu +  in libipw_frag_cache_get()
104 		entry = &ieee->frag_cache[ieee->frag_next_idx];  in libipw_frag_cache_get()
105 		ieee->frag_next_idx++;  in libipw_frag_cache_get()
106 		if (ieee->frag_next_idx >= LIBIPW_FRAG_CACHE_LEN)  in libipw_frag_cache_get()
107 			ieee->frag_next_idx = 0;  in libipw_frag_cache_get()
121 		entry = libipw_frag_cache_find(ieee, seq, frag, hdr->addr2,  in libipw_frag_cache_get()
133 static int libipw_frag_cache_invalidate(struct libipw_device *ieee,  in libipw_frag_cache_invalidate()  argument
143 	entry = libipw_frag_cache_find(ieee, seq, -1, hdr->addr2,  in libipw_frag_cache_invalidate()
163 libipw_rx_frame_mgmt(struct libipw_device *ieee, struct sk_buff *skb,  in libipw_rx_frame_mgmt()  argument
167 	if (ieee->iw_mode == IW_MODE_MASTER) {  in libipw_rx_frame_mgmt()
169 		       ieee->dev->name);  in libipw_rx_frame_mgmt()
172   hostap_update_sta_ps(ieee, (struct hostap_libipw_hdr_4addr *)  in libipw_rx_frame_mgmt()
176 	if (ieee->hostapd && type == WLAN_FC_TYPE_MGMT) {  in libipw_rx_frame_mgmt()
178 		    ieee->iw_mode == IW_MODE_MASTER) {  in libipw_rx_frame_mgmt()
189 		ieee->apdevstats.rx_packets++;  in libipw_rx_frame_mgmt()
190 		ieee->apdevstats.rx_bytes += skb->len;  in libipw_rx_frame_mgmt()
191 		prism2_rx_80211(ieee->apdev, skb, rx_stats, PRISM2_RX_MGMT);  in libipw_rx_frame_mgmt()
195 	if (ieee->iw_mode == IW_MODE_MASTER) {  in libipw_rx_frame_mgmt()
213 /* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
224 static int libipw_is_eapol_frame(struct libipw_device *ieee,  in libipw_is_eapol_frame()  argument
227 	struct net_device *dev = ieee->dev;  in libipw_is_eapol_frame()
265 libipw_rx_frame_decrypt(struct libipw_device *ieee, struct sk_buff *skb,  in libipw_rx_frame_decrypt()  argument
287 		ieee->ieee_stats.rx_discards_undecryptable++;  in libipw_rx_frame_decrypt()
296 libipw_rx_frame_decrypt_msdu(struct libipw_device *ieee,  in libipw_rx_frame_decrypt_msdu()  argument
314 		       " (SA=%pM keyidx=%d)\n", ieee->dev->name, hdr->addr2,  in libipw_rx_frame_decrypt_msdu()
323  * IEEE 802.11 format, i.e., in the format it was sent over air.
325 int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb,  in libipw_rx()  argument
328 	struct net_device *dev = ieee->dev;  in libipw_rx()
373 	if (ieee->spy_data.spy_number > 0) {  in libipw_rx()
396 		libipw_spy_update(ieee->dev, hdr->addr2, &wstats);  in libipw_rx()
405 	if (ieee->iw_mode == IW_MODE_MONITOR) {  in libipw_rx()
408 		libipw_monitor_rx(ieee, skb, rx_stats);  in libipw_rx()
414 	    ieee->host_mc_decrypt : ieee->host_decrypt;  in libipw_rx()
422 		/* ieee->crypt[] is WEP_KEY (4) in length.  Given that keyidx  in libipw_rx()
426 		crypt = ieee->crypt_info.crypt[keyidx];  in libipw_rx()
434 		 * even with broad/multicast targets (this is against IEEE  in libipw_rx()
456 			ieee->ieee_stats.rx_discards_undecryptable++;  in libipw_rx()
463 		    fc & IEEE80211_FCTL_PROTECTED && ieee->host_decrypt &&  in libipw_rx()
464 		    (keyidx = hostap_rx_frame_decrypt(ieee, skb, crypt)) < 0) {  in libipw_rx()
472 		if (libipw_rx_frame_mgmt(ieee, skb, rx_stats, type, stype))  in libipw_rx()
478 	/* drop duplicate 802.11 retransmissions (IEEE 802.11 Chap. 9.29) */  in libipw_rx()
479 	if (sc == ieee->prev_seq_ctl)  in libipw_rx()
482 		ieee->prev_seq_ctl = sc;  in libipw_rx()
510 	if (hostap_rx_frame_wds(ieee, hdr, fc, &wds))  in libipw_rx()
517 	if (ieee->iw_mode == IW_MODE_MASTER && !wds &&  in libipw_rx()
519 	    IEEE80211_FCTL_FROMDS && ieee->stadev &&  in libipw_rx()
520 	    ether_addr_equal(hdr->addr2, ieee->assoc_ap_addr)) {  in libipw_rx()
522 		skb->dev = dev = ieee->stadev;  in libipw_rx()
529 	if ((ieee->iw_mode == IW_MODE_MASTER ||  in libipw_rx()
530 	     ieee->iw_mode == IW_MODE_REPEAT) && !from_assoc_ap) {  in libipw_rx()
531 		switch (hostap_handle_sta_rx(ieee, dev, skb, rx_stats,  in libipw_rx()
567 	    (keyidx = libipw_rx_frame_decrypt(ieee, skb, crypt)) < 0)  in libipw_rx()
574 	// ieee->host_decrypt && (fc & IEEE80211_FCTL_PROTECTED) &&  in libipw_rx()
577 		struct sk_buff *frag_skb = libipw_frag_cache_get(ieee, hdr);  in libipw_rx()
597 			libipw_frag_cache_invalidate(ieee, hdr);  in libipw_rx()
625 		libipw_frag_cache_invalidate(ieee, hdr);  in libipw_rx()
631 	    libipw_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt))  in libipw_rx()
635 	if (crypt && !(fc & IEEE80211_FCTL_PROTECTED) && !ieee->open_wep) {  in libipw_rx()
636 		if (		/*ieee->ieee802_1x && */  in libipw_rx()
637 			   libipw_is_eapol_frame(ieee, skb)) {  in libipw_rx()
648 	if (crypt && !(fc & IEEE80211_FCTL_PROTECTED) && !ieee->open_wep &&  in libipw_rx()
649 	    !libipw_is_eapol_frame(ieee, skb)) {  in libipw_rx()
659 	    ieee->host_strip_iv_icv) {  in libipw_rx()
671 		switch (ieee->sec.encode_alg[keyidx]) {  in libipw_rx()
707 	/* If IEEE 802.1X is used, check whether the port is authorized to send  in libipw_rx()
709 	if (ieee->ieee802_1x && ieee->iw_mode == IW_MODE_MASTER) {  in libipw_rx()
711 			printk(KERN_DEBUG "%s: RX: IEEE 802.1X frame\n",  in libipw_rx()
713 			if (ieee->hostapd && ieee->apdev) {  in libipw_rx()
714 				/* Send IEEE 802.1X frames to the user  in libipw_rx()
716 				prism2_rx_80211(ieee->apdev, skb, rx_stats,  in libipw_rx()
718 				ieee->apdevstats.rx_packets++;  in libipw_rx()
719 				ieee->apdevstats.rx_bytes += skb->len;  in libipw_rx()
724 			       "unauthorized port (IEEE 802.1X): "  in libipw_rx()
767 	if (ieee->iw_mode == IW_MODE_MASTER && !wds && ieee->ap->bridge_packets) {  in libipw_rx()
771 			ieee->ap->bridged_multicast++;  in libipw_rx()
776 		} else if (hostap_is_sta_assoc(ieee->ap, dst)) {  in libipw_rx()
779 			ieee->ap->bridged_unicast++;  in libipw_rx()
829 void libipw_rx_any(struct libipw_device *ieee,  in libipw_rx_any()  argument
836 	if (ieee->iw_mode == IW_MODE_MONITOR) {  in libipw_rx_any()
837 		if (!libipw_rx(ieee, skb, stats))  in libipw_rx_any()
855 		libipw_rx_mgt(ieee, hdr, stats);  in libipw_rx_any()
867 	switch (ieee->iw_mode) {  in libipw_rx_any()
870 		if (ether_addr_equal(hdr->addr3, ieee->bssid) &&  in libipw_rx_any()
873 			if (ieee->dev->flags & IFF_PROMISC)  in libipw_rx_any()
876 			else if (ether_addr_equal(hdr->addr1, ieee->dev->dev_addr))  in libipw_rx_any()
885 		if (ether_addr_equal(hdr->addr2, ieee->bssid) &&  in libipw_rx_any()
888 			if (ieee->dev->flags & IFF_PROMISC)  in libipw_rx_any()
891 			else if (ether_addr_equal(hdr->addr1, ieee->dev->dev_addr))  in libipw_rx_any()
896 				if (!ether_addr_equal(hdr->addr3, ieee->dev->dev_addr))  in libipw_rx_any()
907 		if (!libipw_rx(ieee, skb, stats))  in libipw_rx_any()
913 	ieee->dev->stats.rx_dropped++;  in libipw_rx_any()
1295 static int libipw_handle_assoc_resp(struct libipw_device *ieee, struct libipw_assoc_response  in libipw_handle_assoc_resp()  argument
1300 	struct net_device *dev = ieee->dev;  in libipw_handle_assoc_resp()
1345 	if (ieee->handle_assoc_response != NULL)  in libipw_handle_assoc_resp()
1346 		ieee->handle_assoc_response(dev, frame, network);  in libipw_handle_assoc_resp()
1353 static int libipw_network_init(struct libipw_device *ieee, struct libipw_probe_response  in libipw_network_init()  argument
1500 						    *ieee, struct  in libipw_process_probe_response()
1505 	struct net_device *dev = ieee->dev;  in libipw_process_probe_response()
1534 	if (libipw_network_init(ieee, beacon, &network, stats)) {  in libipw_process_probe_response()
1553 	spin_lock_irqsave(&ieee->lock, flags);  in libipw_process_probe_response()
1555 	list_for_each_entry(target, &ieee->network_list, list) {  in libipw_process_probe_response()
1566 	if (&target->list == &ieee->network_list) {  in libipw_process_probe_response()
1567 		if (list_empty(&ieee->network_free_list)) {  in libipw_process_probe_response()
1576 			target = list_entry(ieee->network_free_list.next,  in libipw_process_probe_response()
1578 			list_del(ieee->network_free_list.next);  in libipw_process_probe_response()
1589 		list_add_tail(&target->list, &ieee->network_list);  in libipw_process_probe_response()
1599 	spin_unlock_irqrestore(&ieee->lock, flags);  in libipw_process_probe_response()
1602 		if (ieee->handle_beacon != NULL)  in libipw_process_probe_response()
1603 			ieee->handle_beacon(dev, beacon, target);  in libipw_process_probe_response()
1605 		if (ieee->handle_probe_response != NULL)  in libipw_process_probe_response()
1606 			ieee->handle_probe_response(dev, beacon, target);  in libipw_process_probe_response()
1610 void libipw_rx_mgt(struct libipw_device *ieee,  in libipw_rx_mgt()  argument
1619 		libipw_handle_assoc_resp(ieee,  in libipw_rx_mgt()
1635 		if (ieee->handle_probe_request != NULL)  in libipw_rx_mgt()
1636 			ieee->handle_probe_request(ieee->dev,  in libipw_rx_mgt()
1647 		libipw_process_probe_response(ieee,  in libipw_rx_mgt()
1658 		libipw_process_probe_response(ieee,  in libipw_rx_mgt()
1669 		if (ieee->handle_auth != NULL)  in libipw_rx_mgt()
1670 			ieee->handle_auth(ieee->dev,  in libipw_rx_mgt()
1675 		if (ieee->handle_disassoc != NULL)  in libipw_rx_mgt()
1676 			ieee->handle_disassoc(ieee->dev,  in libipw_rx_mgt()
1683 		if (ieee->handle_action)  in libipw_rx_mgt()
1684 			ieee->handle_action(ieee->dev,  in libipw_rx_mgt()
1695 				     ieee->dev->name);  in libipw_rx_mgt()
1696 		if (ieee->handle_reassoc_request != NULL)  in libipw_rx_mgt()
1697 			ieee->handle_reassoc_request(ieee->dev,  in libipw_rx_mgt()
1708 				     ieee->dev->name);  in libipw_rx_mgt()
1709 		if (ieee->handle_assoc_request != NULL)  in libipw_rx_mgt()
1710 			ieee->handle_assoc_request(ieee->dev);  in libipw_rx_mgt()
1715 		if (ieee->handle_deauth != NULL)  in libipw_rx_mgt()
1716 			ieee->handle_deauth(ieee->dev,  in libipw_rx_mgt()
1725 				     ieee->dev->name,  in libipw_rx_mgt()