31 br_netif_receive_skb(struct net *net, struct sock *sk, struct sk_buff *skb)  in br_netif_receive_skb()  argument
33 	br_drop_fake_rtable(skb);  in br_netif_receive_skb()
34 	return netif_receive_skb(skb);  in br_netif_receive_skb()
37 static int br_pass_frame_up(struct sk_buff *skb)  in br_pass_frame_up()  argument
39 	struct net_device *indev, *brdev = BR_INPUT_SKB_CB(skb)->brdev;  in br_pass_frame_up()
46 	brstats->rx_bytes += skb->len;  in br_pass_frame_up()
55 	    !br_allowed_egress(vg, skb)) {  in br_pass_frame_up()
56 		kfree_skb(skb);  in br_pass_frame_up()
60 	indev = skb->dev;  in br_pass_frame_up()
61 	skb->dev = brdev;  in br_pass_frame_up()
62 	skb = br_handle_vlan(br, NULL, vg, skb);  in br_pass_frame_up()
63 	if (!skb)  in br_pass_frame_up()
66 	br_multicast_count(br, NULL, skb, br_multicast_igmp_type(skb),  in br_pass_frame_up()
70 		       dev_net(indev), NULL, skb, indev, NULL,  in br_pass_frame_up()
75 int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb)  in br_handle_frame_finish()  argument
77 	struct net_bridge_port *p = br_port_get_rcu(skb->dev);  in br_handle_frame_finish()
89 	if (!br_allowed_ingress(p->br, nbp_vlan_group_rcu(p), skb, &vid))  in br_handle_frame_finish()
92 	nbp_switchdev_frame_mark(p, skb);  in br_handle_frame_finish()
97 		br_fdb_update(br, p, eth_hdr(skb)->h_source, vid, false);  in br_handle_frame_finish()
100 	dest = eth_hdr(skb)->h_dest;  in br_handle_frame_finish()
108 			if (br_multicast_rcv(br, p, skb, vid))  in br_handle_frame_finish()
116 	BR_INPUT_SKB_CB(skb)->brdev = br->dev;  in br_handle_frame_finish()
117 	BR_INPUT_SKB_CB(skb)->src_port_isolated = !!(p->flags & BR_ISOLATED);  in br_handle_frame_finish()
120 	    (skb->protocol == htons(ETH_P_ARP) ||  in br_handle_frame_finish()
121 	     skb->protocol == htons(ETH_P_RARP))) {  in br_handle_frame_finish()
122 		br_do_proxy_suppress_arp(skb, br, vid, p);  in br_handle_frame_finish()
124 		   skb->protocol == htons(ETH_P_IPV6) &&  in br_handle_frame_finish()
126 		   pskb_may_pull(skb, sizeof(struct ipv6hdr) +  in br_handle_frame_finish()
128 		   ipv6_hdr(skb)->nexthdr == IPPROTO_ICMPV6) {  in br_handle_frame_finish()
131 			msg = br_is_nd_neigh_msg(skb, &_msg);  in br_handle_frame_finish()
133 				br_do_suppress_nd(skb, br, vid, p, msg);  in br_handle_frame_finish()
138 		mdst = br_mdb_get(br, skb, vid);  in br_handle_frame_finish()
139 		if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) &&  in br_handle_frame_finish()
140 		    br_multicast_querier_exists(br, eth_hdr(skb))) {  in br_handle_frame_finish()
162 			return br_pass_frame_up(skb);  in br_handle_frame_finish()
166 		br_forward(dst->dst, skb, local_rcv, false);  in br_handle_frame_finish()
169 			br_flood(br, skb, pkt_type, local_rcv, false);  in br_handle_frame_finish()
171 			br_multicast_flood(mdst, skb, local_rcv, false);  in br_handle_frame_finish()
175 		return br_pass_frame_up(skb);  in br_handle_frame_finish()
180 	kfree_skb(skb);  in br_handle_frame_finish()
185 static void __br_handle_local_finish(struct sk_buff *skb)  in __br_handle_local_finish()  argument
187 	struct net_bridge_port *p = br_port_get_rcu(skb->dev);  in __br_handle_local_finish()
191 	if (p->flags & BR_LEARNING && br_should_learn(p, skb, &vid))  in __br_handle_local_finish()
192 		br_fdb_update(p->br, p, eth_hdr(skb)->h_source, vid, false);  in __br_handle_local_finish()
196 static int br_handle_local_finish(struct net *net, struct sock *sk, struct sk_buff *skb)  in br_handle_local_finish()  argument
198 	struct net_bridge_port *p = br_port_get_rcu(skb->dev);  in br_handle_local_finish()
200 	__br_handle_local_finish(skb);  in br_handle_local_finish()
202 	BR_INPUT_SKB_CB(skb)->brdev = p->br->dev;  in br_handle_local_finish()
203 	br_pass_frame_up(skb);  in br_handle_local_finish()
214 	struct sk_buff *skb = *pskb;  in br_handle_frame()  local
215 	const unsigned char *dest = eth_hdr(skb)->h_dest;  in br_handle_frame()
218 	if (unlikely(skb->pkt_type == PACKET_LOOPBACK))  in br_handle_frame()
221 	if (!is_valid_ether_addr(eth_hdr(skb)->h_source))  in br_handle_frame()
224 	skb = skb_share_check(skb, GFP_ATOMIC);  in br_handle_frame()
225 	if (!skb)  in br_handle_frame()
228 	p = br_port_get_rcu(skb->dev);  in br_handle_frame()
230 		if (br_handle_ingress_vlan_tunnel(skb, p,  in br_handle_frame()
259 			*pskb = skb;  in br_handle_frame()
260 			__br_handle_local_finish(skb);  in br_handle_frame()
270 			*pskb = skb;  in br_handle_frame()
271 			__br_handle_local_finish(skb);  in br_handle_frame()
282 		NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, dev_net(skb->dev),  in br_handle_frame()
283 			NULL, skb, skb->dev, NULL, br_handle_local_finish);  in br_handle_frame()
292 			if ((*rhook)(skb)) {  in br_handle_frame()
293 				*pskb = skb;  in br_handle_frame()
296 			dest = eth_hdr(skb)->h_dest;  in br_handle_frame()
301 			skb->pkt_type = PACKET_HOST;  in br_handle_frame()
304 			dev_net(skb->dev), NULL, skb, skb->dev, NULL,  in br_handle_frame()
309 		kfree_skb(skb);  in br_handle_frame()