26 				 const struct sk_buff *skb)  in should_deliver()  argument
31 	return ((p->flags & BR_HAIRPIN_MODE) || skb->dev != p->dev) &&  in should_deliver()
32 		br_allowed_egress(vg, skb) && p->state == BR_STATE_FORWARDING &&  in should_deliver()
33 		nbp_switchdev_allowed_egress(p, skb) &&  in should_deliver()
34 		!br_skb_isolated(p, skb);  in should_deliver()
37 int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb)  in br_dev_queue_push_xmit()  argument
39 	if (!is_skb_forwardable(skb->dev, skb))  in br_dev_queue_push_xmit()
42 	skb_push(skb, ETH_HLEN);  in br_dev_queue_push_xmit()
43 	br_drop_fake_rtable(skb);  in br_dev_queue_push_xmit()
45 	if (skb->ip_summed == CHECKSUM_PARTIAL &&  in br_dev_queue_push_xmit()
46 	    (skb->protocol == htons(ETH_P_8021Q) ||  in br_dev_queue_push_xmit()
47 	     skb->protocol == htons(ETH_P_8021AD))) {  in br_dev_queue_push_xmit()
50 		if (!__vlan_get_protocol(skb, skb->protocol, &depth))  in br_dev_queue_push_xmit()
53 		skb_set_network_header(skb, depth);  in br_dev_queue_push_xmit()
56 	dev_queue_xmit(skb);  in br_dev_queue_push_xmit()
61 	kfree_skb(skb);  in br_dev_queue_push_xmit()
66 int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb)  in br_forward_finish()  argument
69 		       net, sk, skb, NULL, skb->dev,  in br_forward_finish()
76 			 struct sk_buff *skb, bool local_orig)  in __br_forward()  argument
84 	skb = br_handle_vlan(to->br, to, vg, skb);  in __br_forward()
85 	if (!skb)  in __br_forward()
88 	indev = skb->dev;  in __br_forward()
89 	skb->dev = to->dev;  in __br_forward()
91 		if (skb_warn_if_lro(skb)) {  in __br_forward()
92 			kfree_skb(skb);  in __br_forward()
96 		skb_forward_csum(skb);  in __br_forward()
100 			if (!is_skb_forwardable(skb->dev, skb)) {  in __br_forward()
101 				kfree_skb(skb);  in __br_forward()
103 				skb_push(skb, ETH_HLEN);  in __br_forward()
104 				br_netpoll_send_skb(to, skb);  in __br_forward()
109 		net = dev_net(skb->dev);  in __br_forward()
114 		net, NULL, skb, indev, skb->dev,  in __br_forward()
119 			 struct sk_buff *skb, bool local_orig)  in deliver_clone()  argument
121 	struct net_device *dev = BR_INPUT_SKB_CB(skb)->brdev;  in deliver_clone()
123 	skb = skb_clone(skb, GFP_ATOMIC);  in deliver_clone()
124 	if (!skb) {  in deliver_clone()
129 	__br_forward(prev, skb, local_orig);  in deliver_clone()
143 		struct sk_buff *skb, bool local_rcv, bool local_orig)  in br_forward()  argument
158 	if (should_deliver(to, skb)) {  in br_forward()
160 			deliver_clone(to, skb, local_orig);  in br_forward()
162 			__br_forward(to, skb, local_orig);  in br_forward()
168 		kfree_skb(skb);  in br_forward()
174 	struct sk_buff *skb, bool local_orig)  in maybe_deliver()  argument
178 	if (!should_deliver(p, skb))  in maybe_deliver()
184 	err = deliver_clone(prev, skb, local_orig);  in maybe_deliver()
193 void br_flood(struct net_bridge *br, struct sk_buff *skb,  in br_flood()  argument
196 	u8 igmp_type = br_multicast_igmp_type(skb);  in br_flood()
210 			if (!(p->flags & BR_MCAST_FLOOD) && skb->dev != br->dev)  in br_flood()
214 			if (!(p->flags & BR_BCAST_FLOOD) && skb->dev != br->dev)  in br_flood()
223 		    BR_INPUT_SKB_CB(skb)->proxyarp_replied)  in br_flood()
226 		prev = maybe_deliver(prev, p, skb, local_orig);  in br_flood()
230 			br_multicast_count(p->br, p, skb, igmp_type,  in br_flood()
238 		deliver_clone(prev, skb, local_orig);  in br_flood()
240 		__br_forward(prev, skb, local_orig);  in br_flood()
245 		kfree_skb(skb);  in br_flood()
249 static void maybe_deliver_addr(struct net_bridge_port *p, struct sk_buff *skb,  in maybe_deliver_addr()  argument
252 	struct net_device *dev = BR_INPUT_SKB_CB(skb)->brdev;  in maybe_deliver_addr()
253 	const unsigned char *src = eth_hdr(skb)->h_source;  in maybe_deliver_addr()
255 	if (!should_deliver(p, skb))  in maybe_deliver_addr()
259 	if (skb->dev == p->dev && ether_addr_equal(src, addr))  in maybe_deliver_addr()
262 	skb = skb_copy(skb, GFP_ATOMIC);  in maybe_deliver_addr()
263 	if (!skb) {  in maybe_deliver_addr()
269 		memcpy(eth_hdr(skb)->h_dest, addr, ETH_ALEN);  in maybe_deliver_addr()
271 	__br_forward(p, skb, local_orig);  in maybe_deliver_addr()
276 			struct sk_buff *skb,  in br_multicast_flood()  argument
279 	struct net_device *dev = BR_INPUT_SKB_CB(skb)->brdev;  in br_multicast_flood()
280 	u8 igmp_type = br_multicast_igmp_type(skb);  in br_multicast_flood()
298 				maybe_deliver_addr(lport, skb, p->eth_addr,  in br_multicast_flood()
306 		prev = maybe_deliver(prev, port, skb, local_orig);  in br_multicast_flood()
311 			br_multicast_count(port->br, port, skb, igmp_type,  in br_multicast_flood()
324 		deliver_clone(prev, skb, local_orig);  in br_multicast_flood()
326 		__br_forward(prev, skb, local_orig);  in br_multicast_flood()
331 		kfree_skb(skb);  in br_multicast_flood()