27 br_netif_receive_skb(struct net *net, struct sock *sk, struct sk_buff *skb)  in br_netif_receive_skb()  argument
29 	br_drop_fake_rtable(skb);  in br_netif_receive_skb()
30 	return netif_receive_skb(skb);  in br_netif_receive_skb()
33 static int br_pass_frame_up(struct sk_buff *skb)  in br_pass_frame_up()  argument
35 	struct net_device *indev, *brdev = BR_INPUT_SKB_CB(skb)->brdev;  in br_pass_frame_up()
42 	brstats->rx_bytes += skb->len;  in br_pass_frame_up()
51 	br_switchdev_frame_unmark(skb);  in br_pass_frame_up()
58 	    !br_allowed_egress(vg, skb)) {  in br_pass_frame_up()
59 		kfree_skb(skb);  in br_pass_frame_up()
63 	indev = skb->dev;  in br_pass_frame_up()
64 	skb->dev = brdev;  in br_pass_frame_up()
65 	skb = br_handle_vlan(br, NULL, vg, skb);  in br_pass_frame_up()
66 	if (!skb)  in br_pass_frame_up()
69 	br_multicast_count(br, NULL, skb, br_multicast_igmp_type(skb),  in br_pass_frame_up()
73 		       dev_net(indev), NULL, skb, indev, NULL,  in br_pass_frame_up()
78 int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb)  in br_handle_frame_finish()  argument
80 	struct net_bridge_port *p = br_port_get_rcu(skb->dev);  in br_handle_frame_finish()
93 	if (!br_allowed_ingress(p->br, nbp_vlan_group_rcu(p), skb, &vid,  in br_handle_frame_finish()
97 	nbp_switchdev_frame_mark(p, skb);  in br_handle_frame_finish()
102 		br_fdb_update(br, p, eth_hdr(skb)->h_source, vid, 0);  in br_handle_frame_finish()
105 	if (is_multicast_ether_addr(eth_hdr(skb)->h_dest)) {  in br_handle_frame_finish()
107 		if (is_broadcast_ether_addr(eth_hdr(skb)->h_dest)) {  in br_handle_frame_finish()
112 			if (br_multicast_rcv(br, p, skb, vid))  in br_handle_frame_finish()
120 	BR_INPUT_SKB_CB(skb)->brdev = br->dev;  in br_handle_frame_finish()
121 	BR_INPUT_SKB_CB(skb)->src_port_isolated = !!(p->flags & BR_ISOLATED);  in br_handle_frame_finish()
124 	    (skb->protocol == htons(ETH_P_ARP) ||  in br_handle_frame_finish()
125 	     skb->protocol == htons(ETH_P_RARP))) {  in br_handle_frame_finish()
126 		br_do_proxy_suppress_arp(skb, br, vid, p);  in br_handle_frame_finish()
128 		   skb->protocol == htons(ETH_P_IPV6) &&  in br_handle_frame_finish()
130 		   pskb_may_pull(skb, sizeof(struct ipv6hdr) +  in br_handle_frame_finish()
132 		   ipv6_hdr(skb)->nexthdr == IPPROTO_ICMPV6) {  in br_handle_frame_finish()
135 			msg = br_is_nd_neigh_msg(skb, &_msg);  in br_handle_frame_finish()
137 				br_do_suppress_nd(skb, br, vid, p, msg);  in br_handle_frame_finish()
142 		mdst = br_mdb_get(br, skb, vid);  in br_handle_frame_finish()
143 		if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) &&  in br_handle_frame_finish()
144 		    br_multicast_querier_exists(br, eth_hdr(skb))) {  in br_handle_frame_finish()
157 		dst = br_fdb_find_rcu(br, eth_hdr(skb)->h_dest, vid);  in br_handle_frame_finish()
166 			return br_pass_frame_up(skb);  in br_handle_frame_finish()
170 		br_forward(dst->dst, skb, local_rcv, false);  in br_handle_frame_finish()
173 			br_flood(br, skb, pkt_type, local_rcv, false);  in br_handle_frame_finish()
175 			br_multicast_flood(mdst, skb, local_rcv, false);  in br_handle_frame_finish()
179 		return br_pass_frame_up(skb);  in br_handle_frame_finish()
184 	kfree_skb(skb);  in br_handle_frame_finish()
189 static void __br_handle_local_finish(struct sk_buff *skb)  in __br_handle_local_finish()  argument
191 	struct net_bridge_port *p = br_port_get_rcu(skb->dev);  in __br_handle_local_finish()
198 	    br_should_learn(p, skb, &vid))  in __br_handle_local_finish()
199 		br_fdb_update(p->br, p, eth_hdr(skb)->h_source, vid, 0);  in __br_handle_local_finish()
203 static int br_handle_local_finish(struct net *net, struct sock *sk, struct sk_buff *skb)  in br_handle_local_finish()  argument
205 	__br_handle_local_finish(skb);  in br_handle_local_finish()
211 static int nf_hook_bridge_pre(struct sk_buff *skb, struct sk_buff **pskb)  in nf_hook_bridge_pre()  argument
220 	net = dev_net(skb->dev);  in nf_hook_bridge_pre()
231 			   NFPROTO_BRIDGE, skb->dev, NULL, NULL,  in nf_hook_bridge_pre()
235 		verdict = nf_hook_entry_hookfn(&e->hooks[i], skb, &state);  in nf_hook_bridge_pre()
238 			if (BR_INPUT_SKB_CB(skb)->br_netfilter_broute) {  in nf_hook_bridge_pre()
239 				*pskb = skb;  in nf_hook_bridge_pre()
244 			kfree_skb(skb);  in nf_hook_bridge_pre()
247 			ret = nf_queue(skb, &state, i, verdict);  in nf_hook_bridge_pre()
256 	net = dev_net(skb->dev);  in nf_hook_bridge_pre()
257 	br_handle_frame_finish(net, NULL, skb);  in nf_hook_bridge_pre()
259 	br_handle_frame_finish(dev_net(skb->dev), NULL, skb);  in nf_hook_bridge_pre()
271 	struct sk_buff *skb = *pskb;  in br_handle_frame()  local
272 	const unsigned char *dest = eth_hdr(skb)->h_dest;  in br_handle_frame()
274 	if (unlikely(skb->pkt_type == PACKET_LOOPBACK))  in br_handle_frame()
277 	if (!is_valid_ether_addr(eth_hdr(skb)->h_source))  in br_handle_frame()
280 	skb = skb_share_check(skb, GFP_ATOMIC);  in br_handle_frame()
281 	if (!skb)  in br_handle_frame()
284 	memset(skb->cb, 0, sizeof(struct br_input_skb_cb));  in br_handle_frame()
286 	p = br_port_get_rcu(skb->dev);  in br_handle_frame()
288 		if (br_handle_ingress_vlan_tunnel(skb, p,  in br_handle_frame()
317 			*pskb = skb;  in br_handle_frame()
318 			__br_handle_local_finish(skb);  in br_handle_frame()
328 			*pskb = skb;  in br_handle_frame()
329 			__br_handle_local_finish(skb);  in br_handle_frame()
345 			    dev_net(skb->dev), NULL, skb, skb->dev, NULL,  in br_handle_frame()
353 	if (unlikely(br_mrp_process(p, skb)))  in br_handle_frame()
361 			skb->pkt_type = PACKET_HOST;  in br_handle_frame()
363 		return nf_hook_bridge_pre(skb, pskb);  in br_handle_frame()
366 		kfree_skb(skb);  in br_handle_frame()