27 static int br_pass_frame_up(struct sk_buff *skb)  in br_pass_frame_up()  argument
29 	struct net_device *indev, *brdev = BR_INPUT_SKB_CB(skb)->brdev;  in br_pass_frame_up()
36 	brstats->rx_bytes += skb->len;  in br_pass_frame_up()
45 	    !br_allowed_egress(br, pv, skb)) {  in br_pass_frame_up()
46 		kfree_skb(skb);  in br_pass_frame_up()
50 	indev = skb->dev;  in br_pass_frame_up()
51 	skb->dev = brdev;  in br_pass_frame_up()
52 	skb = br_handle_vlan(br, pv, skb);  in br_pass_frame_up()
53 	if (!skb)  in br_pass_frame_up()
56 	return NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, skb, indev, NULL,  in br_pass_frame_up()
61 int br_handle_frame_finish(struct sk_buff *skb)  in br_handle_frame_finish()  argument
63 	const unsigned char *dest = eth_hdr(skb)->h_dest;  in br_handle_frame_finish()
64 	struct net_bridge_port *p = br_port_get_rcu(skb->dev);  in br_handle_frame_finish()
75 	if (!br_allowed_ingress(p->br, nbp_get_vlan_info(p), skb, &vid))  in br_handle_frame_finish()
81 		br_fdb_update(br, p, eth_hdr(skb)->h_source, vid, false);  in br_handle_frame_finish()
84 	    br_multicast_rcv(br, p, skb, vid))  in br_handle_frame_finish()
90 	BR_INPUT_SKB_CB(skb)->brdev = br->dev;  in br_handle_frame_finish()
96 		skb2 = skb;  in br_handle_frame_finish()
101 		skb2 = skb;  in br_handle_frame_finish()
104 		mdst = br_mdb_get(br, skb, vid);  in br_handle_frame_finish()
105 		if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) &&  in br_handle_frame_finish()
106 		    br_multicast_querier_exists(br, eth_hdr(skb))) {  in br_handle_frame_finish()
109 				skb2 = skb;  in br_handle_frame_finish()
110 			br_multicast_forward(mdst, skb, skb2);  in br_handle_frame_finish()
111 			skb = NULL;  in br_handle_frame_finish()
115 			skb2 = skb;  in br_handle_frame_finish()
121 		skb2 = skb;  in br_handle_frame_finish()
123 		skb = NULL;  in br_handle_frame_finish()
126 	if (skb) {  in br_handle_frame_finish()
129 			br_forward(dst->dst, skb, skb2);  in br_handle_frame_finish()
131 			br_flood_forward(br, skb, skb2, unicast);  in br_handle_frame_finish()
140 	kfree_skb(skb);  in br_handle_frame_finish()
146 static int br_handle_local_finish(struct sk_buff *skb)  in br_handle_local_finish()  argument
148 	struct net_bridge_port *p = br_port_get_rcu(skb->dev);  in br_handle_local_finish()
152 	if (p->flags & BR_LEARNING && br_should_learn(p, skb, &vid))  in br_handle_local_finish()
153 		br_fdb_update(p->br, p, eth_hdr(skb)->h_source, vid, false);  in br_handle_local_finish()
164 	struct sk_buff *skb = *pskb;  in br_handle_frame()  local
165 	const unsigned char *dest = eth_hdr(skb)->h_dest;  in br_handle_frame()
168 	if (unlikely(skb->pkt_type == PACKET_LOOPBACK))  in br_handle_frame()
171 	if (!is_valid_ether_addr(eth_hdr(skb)->h_source))  in br_handle_frame()
174 	skb = skb_share_check(skb, GFP_ATOMIC);  in br_handle_frame()
175 	if (!skb)  in br_handle_frame()
178 	p = br_port_get_rcu(skb->dev);  in br_handle_frame()
216 		if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, skb, skb->dev,  in br_handle_frame()
220 			*pskb = skb;  in br_handle_frame()
230 			if ((*rhook)(skb)) {  in br_handle_frame()
231 				*pskb = skb;  in br_handle_frame()
234 			dest = eth_hdr(skb)->h_dest;  in br_handle_frame()
239 			skb->pkt_type = PACKET_HOST;  in br_handle_frame()
241 		NF_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,  in br_handle_frame()
246 		kfree_skb(skb);  in br_handle_frame()