22 				 const struct sk_buff *skb)  in should_deliver()  argument
27 	return ((p->flags & BR_HAIRPIN_MODE) || skb->dev != p->dev) &&  in should_deliver()
28 		p->state == BR_STATE_FORWARDING && br_allowed_egress(vg, skb) &&  in should_deliver()
29 		nbp_switchdev_allowed_egress(p, skb) &&  in should_deliver()
30 		!br_skb_isolated(p, skb);  in should_deliver()
33 int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb)  in br_dev_queue_push_xmit()  argument
35 	skb_push(skb, ETH_HLEN);  in br_dev_queue_push_xmit()
36 	if (!is_skb_forwardable(skb->dev, skb))  in br_dev_queue_push_xmit()
39 	br_drop_fake_rtable(skb);  in br_dev_queue_push_xmit()
41 	if (skb->ip_summed == CHECKSUM_PARTIAL &&  in br_dev_queue_push_xmit()
42 	    eth_type_vlan(skb->protocol)) {  in br_dev_queue_push_xmit()
45 		if (!vlan_get_protocol_and_depth(skb, skb->protocol, &depth))  in br_dev_queue_push_xmit()
48 		skb_set_network_header(skb, depth);  in br_dev_queue_push_xmit()
51 	br_switchdev_frame_set_offload_fwd_mark(skb);  in br_dev_queue_push_xmit()
53 	dev_queue_xmit(skb);  in br_dev_queue_push_xmit()
58 	kfree_skb(skb);  in br_dev_queue_push_xmit()
63 int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb)  in br_forward_finish()  argument
65 	skb_clear_tstamp(skb);  in br_forward_finish()
67 		       net, sk, skb, NULL, skb->dev,  in br_forward_finish()
74 			 struct sk_buff *skb, bool local_orig)  in __br_forward()  argument
84 	nbp_switchdev_frame_mark_tx_fwd_offload(to, skb);  in __br_forward()
87 	skb = br_handle_vlan(to->br, to, vg, skb);  in __br_forward()
88 	if (!skb)  in __br_forward()
91 	indev = skb->dev;  in __br_forward()
92 	skb->dev = to->dev;  in __br_forward()
94 		if (skb_warn_if_lro(skb)) {  in __br_forward()
95 			kfree_skb(skb);  in __br_forward()
99 		skb_forward_csum(skb);  in __br_forward()
103 			skb_push(skb, ETH_HLEN);  in __br_forward()
104 			if (!is_skb_forwardable(skb->dev, skb))  in __br_forward()
105 				kfree_skb(skb);  in __br_forward()
107 				br_netpoll_send_skb(to, skb);  in __br_forward()
111 		net = dev_net(skb->dev);  in __br_forward()
116 		net, NULL, skb, indev, skb->dev,  in __br_forward()
121 			 struct sk_buff *skb, bool local_orig)  in deliver_clone()  argument
123 	struct net_device *dev = BR_INPUT_SKB_CB(skb)->brdev;  in deliver_clone()
125 	skb = skb_clone(skb, GFP_ATOMIC);  in deliver_clone()
126 	if (!skb) {  in deliver_clone()
131 	__br_forward(prev, skb, local_orig);  in deliver_clone()
145 		struct sk_buff *skb, bool local_rcv, bool local_orig)  in br_forward()  argument
157 		BR_INPUT_SKB_CB(skb)->backup_nhid = READ_ONCE(to->backup_nhid);  in br_forward()
161 	if (should_deliver(to, skb)) {  in br_forward()
163 			deliver_clone(to, skb, local_orig);  in br_forward()
165 			__br_forward(to, skb, local_orig);  in br_forward()
171 		kfree_skb(skb);  in br_forward()
177 	struct sk_buff *skb, bool local_orig)  in maybe_deliver()  argument
179 	u8 igmp_type = br_multicast_igmp_type(skb);  in maybe_deliver()
182 	if (!should_deliver(p, skb))  in maybe_deliver()
185 	nbp_switchdev_frame_mark_tx_fwd_to_hwdom(p, skb);  in maybe_deliver()
190 	err = deliver_clone(prev, skb, local_orig);  in maybe_deliver()
194 	br_multicast_count(p->br, p, skb, igmp_type, BR_MCAST_DIR_TX);  in maybe_deliver()
200 void br_flood(struct net_bridge *br, struct sk_buff *skb,  in br_flood()  argument
207 	br_tc_skb_miss_set(skb, pkt_type != BR_PKT_BROADCAST);  in br_flood()
219 			if (!(p->flags & BR_MCAST_FLOOD) && skb->dev != br->dev)  in br_flood()
223 			if (!(p->flags & BR_BCAST_FLOOD) && skb->dev != br->dev)  in br_flood()
231 		if (BR_INPUT_SKB_CB(skb)->proxyarp_replied &&  in br_flood()
236 		prev = maybe_deliver(prev, p, skb, local_orig);  in br_flood()
245 		deliver_clone(prev, skb, local_orig);  in br_flood()
247 		__br_forward(prev, skb, local_orig);  in br_flood()
252 		kfree_skb(skb);  in br_flood()
256 static void maybe_deliver_addr(struct net_bridge_port *p, struct sk_buff *skb,  in maybe_deliver_addr()  argument
259 	struct net_device *dev = BR_INPUT_SKB_CB(skb)->brdev;  in maybe_deliver_addr()
260 	const unsigned char *src = eth_hdr(skb)->h_source;  in maybe_deliver_addr()
262 	if (!should_deliver(p, skb))  in maybe_deliver_addr()
266 	if (skb->dev == p->dev && ether_addr_equal(src, addr))  in maybe_deliver_addr()
269 	skb = skb_copy(skb, GFP_ATOMIC);  in maybe_deliver_addr()
270 	if (!skb) {  in maybe_deliver_addr()
276 		memcpy(eth_hdr(skb)->h_dest, addr, ETH_ALEN);  in maybe_deliver_addr()
278 	__br_forward(p, skb, local_orig);  in maybe_deliver_addr()
283 			struct sk_buff *skb,  in br_multicast_flood()  argument
292 	rp = br_multicast_get_first_rport_node(brmctx, skb);  in br_multicast_flood()
301 		br_tc_skb_miss_set(skb, true);  in br_multicast_flood()
308 		rport = br_multicast_rport_from_node_skb(rp, skb);  in br_multicast_flood()
314 				maybe_deliver_addr(lport, skb, p->eth_addr,  in br_multicast_flood()
326 		prev = maybe_deliver(prev, port, skb, local_orig);  in br_multicast_flood()
340 		deliver_clone(prev, skb, local_orig);  in br_multicast_flood()
342 		__br_forward(prev, skb, local_orig);  in br_multicast_flood()
347 		kfree_skb(skb);  in br_multicast_flood()