26 br_netif_receive_skb(struct net *net, struct sock *sk, struct sk_buff *skb)  in br_netif_receive_skb()  argument
28 	br_drop_fake_rtable(skb);  in br_netif_receive_skb()
29 	return netif_receive_skb(skb);  in br_netif_receive_skb()
32 static int br_pass_frame_up(struct sk_buff *skb)  in br_pass_frame_up()  argument
34 	struct net_device *indev, *brdev = BR_INPUT_SKB_CB(skb)->brdev;  in br_pass_frame_up()
41 	brstats->rx_bytes += skb->len;  in br_pass_frame_up()
50 	    !br_allowed_egress(vg, skb)) {  in br_pass_frame_up()
51 		kfree_skb(skb);  in br_pass_frame_up()
55 	indev = skb->dev;  in br_pass_frame_up()
56 	skb->dev = brdev;  in br_pass_frame_up()
57 	skb = br_handle_vlan(br, NULL, vg, skb);  in br_pass_frame_up()
58 	if (!skb)  in br_pass_frame_up()
61 	br_multicast_count(br, NULL, skb, br_multicast_igmp_type(skb),  in br_pass_frame_up()
65 		       dev_net(indev), NULL, skb, indev, NULL,  in br_pass_frame_up()
70 int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb)  in br_handle_frame_finish()  argument
72 	struct net_bridge_port *p = br_port_get_rcu(skb->dev);  in br_handle_frame_finish()
83 	if (!br_allowed_ingress(p->br, nbp_vlan_group_rcu(p), skb, &vid))  in br_handle_frame_finish()
86 	nbp_switchdev_frame_mark(p, skb);  in br_handle_frame_finish()
91 		br_fdb_update(br, p, eth_hdr(skb)->h_source, vid, false);  in br_handle_frame_finish()
94 	if (is_multicast_ether_addr(eth_hdr(skb)->h_dest)) {  in br_handle_frame_finish()
96 		if (is_broadcast_ether_addr(eth_hdr(skb)->h_dest)) {  in br_handle_frame_finish()
101 			if (br_multicast_rcv(br, p, skb, vid))  in br_handle_frame_finish()
109 	BR_INPUT_SKB_CB(skb)->brdev = br->dev;  in br_handle_frame_finish()
110 	BR_INPUT_SKB_CB(skb)->src_port_isolated = !!(p->flags & BR_ISOLATED);  in br_handle_frame_finish()
113 	    (skb->protocol == htons(ETH_P_ARP) ||  in br_handle_frame_finish()
114 	     skb->protocol == htons(ETH_P_RARP))) {  in br_handle_frame_finish()
115 		br_do_proxy_suppress_arp(skb, br, vid, p);  in br_handle_frame_finish()
117 		   skb->protocol == htons(ETH_P_IPV6) &&  in br_handle_frame_finish()
119 		   pskb_may_pull(skb, sizeof(struct ipv6hdr) +  in br_handle_frame_finish()
121 		   ipv6_hdr(skb)->nexthdr == IPPROTO_ICMPV6) {  in br_handle_frame_finish()
124 			msg = br_is_nd_neigh_msg(skb, &_msg);  in br_handle_frame_finish()
126 				br_do_suppress_nd(skb, br, vid, p, msg);  in br_handle_frame_finish()
131 		mdst = br_mdb_get(br, skb, vid);  in br_handle_frame_finish()
132 		if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) &&  in br_handle_frame_finish()
133 		    br_multicast_querier_exists(br, eth_hdr(skb))) {  in br_handle_frame_finish()
146 		dst = br_fdb_find_rcu(br, eth_hdr(skb)->h_dest, vid);  in br_handle_frame_finish()
155 			return br_pass_frame_up(skb);  in br_handle_frame_finish()
159 		br_forward(dst->dst, skb, local_rcv, false);  in br_handle_frame_finish()
162 			br_flood(br, skb, pkt_type, local_rcv, false);  in br_handle_frame_finish()
164 			br_multicast_flood(mdst, skb, local_rcv, false);  in br_handle_frame_finish()
168 		return br_pass_frame_up(skb);  in br_handle_frame_finish()
173 	kfree_skb(skb);  in br_handle_frame_finish()
178 static void __br_handle_local_finish(struct sk_buff *skb)  in __br_handle_local_finish()  argument
180 	struct net_bridge_port *p = br_port_get_rcu(skb->dev);  in __br_handle_local_finish()
186 	    br_should_learn(p, skb, &vid))  in __br_handle_local_finish()
187 		br_fdb_update(p->br, p, eth_hdr(skb)->h_source, vid, false);  in __br_handle_local_finish()
191 static int br_handle_local_finish(struct net *net, struct sock *sk, struct sk_buff *skb)  in br_handle_local_finish()  argument
193 	__br_handle_local_finish(skb);  in br_handle_local_finish()
199 static int nf_hook_bridge_pre(struct sk_buff *skb, struct sk_buff **pskb)  in nf_hook_bridge_pre()  argument
208 	net = dev_net(skb->dev);  in nf_hook_bridge_pre()
219 			   NFPROTO_BRIDGE, skb->dev, NULL, NULL,  in nf_hook_bridge_pre()
223 		verdict = nf_hook_entry_hookfn(&e->hooks[i], skb, &state);  in nf_hook_bridge_pre()
226 			if (BR_INPUT_SKB_CB(skb)->br_netfilter_broute) {  in nf_hook_bridge_pre()
227 				*pskb = skb;  in nf_hook_bridge_pre()
232 			kfree_skb(skb);  in nf_hook_bridge_pre()
235 			ret = nf_queue(skb, &state, i, verdict);  in nf_hook_bridge_pre()
244 	net = dev_net(skb->dev);  in nf_hook_bridge_pre()
245 	br_handle_frame_finish(net, NULL, skb);  in nf_hook_bridge_pre()
247 	br_handle_frame_finish(dev_net(skb->dev), NULL, skb);  in nf_hook_bridge_pre()
259 	struct sk_buff *skb = *pskb;  in br_handle_frame()  local
260 	const unsigned char *dest = eth_hdr(skb)->h_dest;  in br_handle_frame()
262 	if (unlikely(skb->pkt_type == PACKET_LOOPBACK))  in br_handle_frame()
265 	if (!is_valid_ether_addr(eth_hdr(skb)->h_source))  in br_handle_frame()
268 	skb = skb_share_check(skb, GFP_ATOMIC);  in br_handle_frame()
269 	if (!skb)  in br_handle_frame()
272 	memset(skb->cb, 0, sizeof(struct br_input_skb_cb));  in br_handle_frame()
274 	p = br_port_get_rcu(skb->dev);  in br_handle_frame()
276 		if (br_handle_ingress_vlan_tunnel(skb, p,  in br_handle_frame()
305 			*pskb = skb;  in br_handle_frame()
306 			__br_handle_local_finish(skb);  in br_handle_frame()
316 			*pskb = skb;  in br_handle_frame()
317 			__br_handle_local_finish(skb);  in br_handle_frame()
333 			    dev_net(skb->dev), NULL, skb, skb->dev, NULL,  in br_handle_frame()
346 			skb->pkt_type = PACKET_HOST;  in br_handle_frame()
348 		return nf_hook_bridge_pre(skb, pskb);  in br_handle_frame()
351 		kfree_skb(skb);  in br_handle_frame()