49 static int batadv_route_unicast_packet(struct sk_buff *skb,
174 bool batadv_check_management_packet(struct sk_buff *skb,  in batadv_check_management_packet()  argument
181 	if (unlikely(!pskb_may_pull(skb, header_len)))  in batadv_check_management_packet()
184 	ethhdr = eth_hdr(skb);  in batadv_check_management_packet()
195 	if (skb_cow(skb, 0) < 0)  in batadv_check_management_packet()
199 	if (skb_linearize(skb) < 0)  in batadv_check_management_packet()
214 				      struct sk_buff *skb)  in batadv_recv_my_icmp_packet()  argument
221 	icmph = (struct batadv_icmp_header *)skb->data;  in batadv_recv_my_icmp_packet()
228 		if (skb_linearize(skb) < 0)  in batadv_recv_my_icmp_packet()
231 		batadv_socket_receive_packet(icmph, skb->len);  in batadv_recv_my_icmp_packet()
245 		if (skb_cow(skb, ETH_HLEN) < 0)  in batadv_recv_my_icmp_packet()
248 		icmph = (struct batadv_icmp_header *)skb->data;  in batadv_recv_my_icmp_packet()
255 		res = batadv_send_skb_to_orig(skb, orig_node, NULL);  in batadv_recv_my_icmp_packet()
273 					 struct sk_buff *skb)  in batadv_recv_icmp_ttl_exceeded()  argument
280 	icmp_packet = (struct batadv_icmp_packet *)skb->data;  in batadv_recv_icmp_ttl_exceeded()
299 	if (skb_cow(skb, ETH_HLEN) < 0)  in batadv_recv_icmp_ttl_exceeded()
302 	icmp_packet = (struct batadv_icmp_packet *)skb->data;  in batadv_recv_icmp_ttl_exceeded()
309 	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)  in batadv_recv_icmp_ttl_exceeded()
320 int batadv_recv_icmp_packet(struct sk_buff *skb,  in batadv_recv_icmp_packet()  argument
332 	if (unlikely(!pskb_may_pull(skb, hdr_size)))  in batadv_recv_icmp_packet()
335 	ethhdr = eth_hdr(skb);  in batadv_recv_icmp_packet()
349 	icmph = (struct batadv_icmp_header *)skb->data;  in batadv_recv_icmp_packet()
354 	    (skb->len >= sizeof(struct batadv_icmp_packet_rr))) {  in batadv_recv_icmp_packet()
355 		if (skb_linearize(skb) < 0)  in batadv_recv_icmp_packet()
359 		if (skb_cow(skb, ETH_HLEN) < 0)  in batadv_recv_icmp_packet()
362 		icmph = (struct batadv_icmp_header *)skb->data;  in batadv_recv_icmp_packet()
374 		return batadv_recv_my_icmp_packet(bat_priv, skb);  in batadv_recv_icmp_packet()
378 		return batadv_recv_icmp_ttl_exceeded(bat_priv, skb);  in batadv_recv_icmp_packet()
386 	if (skb_cow(skb, ETH_HLEN) < 0)  in batadv_recv_icmp_packet()
389 	icmph = (struct batadv_icmp_header *)skb->data;  in batadv_recv_icmp_packet()
395 	if (batadv_send_skb_to_orig(skb, orig_node, recv_if) != NET_XMIT_DROP)  in batadv_recv_icmp_packet()
416 				       struct sk_buff *skb, int hdr_size)  in batadv_check_unicast_packet()  argument
421 	if (unlikely(!pskb_may_pull(skb, hdr_size)))  in batadv_check_unicast_packet()
424 	ethhdr = eth_hdr(skb);  in batadv_check_unicast_packet()
580 static int batadv_route_unicast_packet(struct sk_buff *skb,  in batadv_route_unicast_packet()  argument
586 	struct ethhdr *ethhdr = eth_hdr(skb);  in batadv_route_unicast_packet()
589 	unicast_packet = (struct batadv_unicast_packet *)skb->data;  in batadv_route_unicast_packet()
605 	if (skb_cow(skb, ETH_HLEN) < 0)  in batadv_route_unicast_packet()
609 	unicast_packet = (struct batadv_unicast_packet *)skb->data;  in batadv_route_unicast_packet()
626 		batadv_skb_set_priority(skb, hdr_len);  in batadv_route_unicast_packet()
628 	res = batadv_send_skb_to_orig(skb, orig_node, recv_if);  in batadv_route_unicast_packet()
635 				   skb->len + ETH_HLEN);  in batadv_route_unicast_packet()
706 				     struct sk_buff *skb, int hdr_len) {  in batadv_check_unicast_ttvn()  argument
716 	if (!pskb_may_pull(skb, hdr_len + ETH_HLEN))  in batadv_check_unicast_ttvn()
720 	if (skb_cow(skb, sizeof(*unicast_packet)) < 0)  in batadv_check_unicast_ttvn()
723 	unicast_packet = (struct batadv_unicast_packet *)skb->data;  in batadv_check_unicast_ttvn()
724 	vid = batadv_get_vid(skb, hdr_len);  in batadv_check_unicast_ttvn()
725 	ethhdr = (struct ethhdr *)(skb->data + hdr_len);  in batadv_check_unicast_ttvn()
820 int batadv_recv_unhandled_unicast_packet(struct sk_buff *skb,  in batadv_recv_unhandled_unicast_packet()  argument
827 	check = batadv_check_unicast_packet(bat_priv, skb, hdr_size);  in batadv_recv_unhandled_unicast_packet()
832 	unicast_packet = (struct batadv_unicast_packet *)skb->data;  in batadv_recv_unhandled_unicast_packet()
836 	return batadv_route_unicast_packet(skb, recv_if);  in batadv_recv_unhandled_unicast_packet()
839 int batadv_recv_unicast_packet(struct sk_buff *skb,  in batadv_recv_unicast_packet()  argument
851 	unicast_packet = (struct batadv_unicast_packet *)skb->data;  in batadv_recv_unicast_packet()
852 	unicast_4addr_packet = (struct batadv_unicast_4addr_packet *)skb->data;  in batadv_recv_unicast_packet()
860 	check = batadv_check_unicast_packet(bat_priv, skb, hdr_size);  in batadv_recv_unicast_packet()
866 		batadv_nc_skb_store_sniffed_unicast(bat_priv, skb);  in batadv_recv_unicast_packet()
870 	if (!batadv_check_unicast_ttvn(bat_priv, skb, hdr_size))  in batadv_recv_unicast_packet()
892 		if (batadv_dat_snoop_incoming_arp_request(bat_priv, skb,  in batadv_recv_unicast_packet()
895 		if (batadv_dat_snoop_incoming_arp_reply(bat_priv, skb,  in batadv_recv_unicast_packet()
899 		batadv_interface_rx(recv_if->soft_iface, skb, recv_if, hdr_size,  in batadv_recv_unicast_packet()
909 	return batadv_route_unicast_packet(skb, recv_if);  in batadv_recv_unicast_packet()
921 int batadv_recv_unicast_tvlv(struct sk_buff *skb,  in batadv_recv_unicast_tvlv()  argument
931 	if (batadv_check_unicast_packet(bat_priv, skb, hdr_size) < 0)  in batadv_recv_unicast_tvlv()
935 	if (skb_cow(skb, hdr_size) < 0)  in batadv_recv_unicast_tvlv()
939 	if (skb_linearize(skb) < 0)  in batadv_recv_unicast_tvlv()
942 	unicast_tvlv_packet = (struct batadv_unicast_tvlv_packet *)skb->data;  in batadv_recv_unicast_tvlv()
944 	tvlv_buff = (unsigned char *)(skb->data + hdr_size);  in batadv_recv_unicast_tvlv()
947 	if (tvlv_buff_len > skb->len - hdr_size)  in batadv_recv_unicast_tvlv()
956 		ret = batadv_route_unicast_packet(skb, recv_if);  in batadv_recv_unicast_tvlv()
958 		consume_skb(skb);  in batadv_recv_unicast_tvlv()
974 int batadv_recv_frag_packet(struct sk_buff *skb,  in batadv_recv_frag_packet()  argument
982 	if (batadv_check_unicast_packet(bat_priv, skb,  in batadv_recv_frag_packet()
986 	frag_packet = (struct batadv_frag_packet *)skb->data;  in batadv_recv_frag_packet()
993 	    batadv_frag_skb_fwd(skb, recv_if, orig_node_src)) {  in batadv_recv_frag_packet()
999 	batadv_add_counter(bat_priv, BATADV_CNT_FRAG_RX_BYTES, skb->len);  in batadv_recv_frag_packet()
1002 	if (!batadv_frag_skb_buffer(&skb, orig_node_src))  in batadv_recv_frag_packet()
1008 	if (skb)  in batadv_recv_frag_packet()
1009 		batadv_batman_skb_recv(skb, recv_if->net_dev,  in batadv_recv_frag_packet()
1021 int batadv_recv_bcast_packet(struct sk_buff *skb,  in batadv_recv_bcast_packet()  argument
1034 	if (unlikely(!pskb_may_pull(skb, hdr_size)))  in batadv_recv_bcast_packet()
1037 	ethhdr = eth_hdr(skb);  in batadv_recv_bcast_packet()
1051 	bcast_packet = (struct batadv_bcast_packet *)skb->data;  in batadv_recv_bcast_packet()
1089 	if (batadv_bla_check_bcast_duplist(bat_priv, skb))  in batadv_recv_bcast_packet()
1092 	batadv_skb_set_priority(skb, sizeof(struct batadv_bcast_packet));  in batadv_recv_bcast_packet()
1095 	batadv_add_bcast_packet_to_list(bat_priv, skb, 1);  in batadv_recv_bcast_packet()
1100 	if (batadv_bla_is_backbone_gw(skb, orig_node, hdr_size))  in batadv_recv_bcast_packet()
1103 	if (batadv_dat_snoop_incoming_arp_request(bat_priv, skb, hdr_size))  in batadv_recv_bcast_packet()
1105 	if (batadv_dat_snoop_incoming_arp_reply(bat_priv, skb, hdr_size))  in batadv_recv_bcast_packet()
1109 	batadv_interface_rx(recv_if->soft_iface, skb, recv_if, hdr_size,  in batadv_recv_bcast_packet()