61 static int vxlan_sock_add(struct vxlan_dev *vxlan);
63 static void vxlan_vs_del_dev(struct vxlan_dev *vxlan);
108 		if (!node->vxlan)  in vxlan_vs_find_vni()
111 		if (node->vxlan->cfg.flags & VXLAN_F_VNIFILTER) {  in vxlan_vs_find_vni()
112 			vnode = vxlan_vnifilter_lookup(node->vxlan, vni);  in vxlan_vs_find_vni()
115 		} else if (node->vxlan->default_dst.remote_vni != vni) {  in vxlan_vs_find_vni()
120 			const struct vxlan_config *cfg = &node->vxlan->cfg;  in vxlan_vs_find_vni()
129 		return node->vxlan;  in vxlan_vs_find_vni()
150 static int vxlan_fdb_info(struct sk_buff *skb, struct vxlan_dev *vxlan,  in vxlan_fdb_info()  argument
192 	ndm->ndm_ifindex = vxlan->dev->ifindex;  in vxlan_fdb_info()
198 	if (!net_eq(dev_net(vxlan->dev), vxlan->net) &&  in vxlan_fdb_info()
200 			peernet2id(dev_net(vxlan->dev), vxlan->net)))  in vxlan_fdb_info()
214 		    rdst->remote_port != vxlan->cfg.dst_port &&  in vxlan_fdb_info()
217 		if (rdst->remote_vni != vxlan->default_dst.remote_vni &&  in vxlan_fdb_info()
225 	if ((vxlan->cfg.flags & VXLAN_F_COLLECT_METADATA) && fdb->vni &&  in vxlan_fdb_info()
258 static void __vxlan_fdb_notify(struct vxlan_dev *vxlan, struct vxlan_fdb *fdb,  in __vxlan_fdb_notify()  argument
261 	struct net *net = dev_net(vxlan->dev);  in __vxlan_fdb_notify()
269 	err = vxlan_fdb_info(skb, vxlan, fdb, 0, 0, type, 0, rd);  in __vxlan_fdb_notify()
284 static void vxlan_fdb_switchdev_notifier_info(const struct vxlan_dev *vxlan,  in vxlan_fdb_switchdev_notifier_info()  argument
290 	fdb_info->info.dev = vxlan->dev;  in vxlan_fdb_switchdev_notifier_info()
302 static int vxlan_fdb_switchdev_call_notifiers(struct vxlan_dev *vxlan,  in vxlan_fdb_switchdev_call_notifiers()  argument
317 	vxlan_fdb_switchdev_notifier_info(vxlan, fdb, rd, NULL, &info);  in vxlan_fdb_switchdev_call_notifiers()
318 	ret = call_switchdev_notifiers(notifier_type, vxlan->dev,  in vxlan_fdb_switchdev_call_notifiers()
323 static int vxlan_fdb_notify(struct vxlan_dev *vxlan, struct vxlan_fdb *fdb,  in vxlan_fdb_notify()  argument
332 			err = vxlan_fdb_switchdev_call_notifiers(vxlan, fdb, rd,  in vxlan_fdb_notify()
338 			vxlan_fdb_switchdev_call_notifiers(vxlan, fdb, rd,  in vxlan_fdb_notify()
344 	__vxlan_fdb_notify(vxlan, fdb, rd, type);  in vxlan_fdb_notify()
350 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_ip_miss()  local
359 	vxlan_fdb_notify(vxlan, &f, &remote, RTM_GETNEIGH, true, NULL);  in vxlan_ip_miss()
362 static void vxlan_fdb_miss(struct vxlan_dev *vxlan, const u8 eth_addr[ETH_ALEN])  in vxlan_fdb_miss()  argument
371 	vxlan_fdb_notify(vxlan, &f, &remote, RTM_GETNEIGH, true, NULL);  in vxlan_fdb_miss()
396 u32 fdb_head_index(struct vxlan_dev *vxlan, const u8 *mac, __be32 vni)  in fdb_head_index()  argument
398 	if (vxlan->cfg.flags & VXLAN_F_COLLECT_METADATA)  in fdb_head_index()
405 static inline struct hlist_head *vxlan_fdb_head(struct vxlan_dev *vxlan,  in vxlan_fdb_head()  argument
408 	return &vxlan->fdb_head[fdb_head_index(vxlan, mac, vni)];  in vxlan_fdb_head()
412 static struct vxlan_fdb *__vxlan_find_mac(struct vxlan_dev *vxlan,  in __vxlan_find_mac()  argument
415 	struct hlist_head *head = vxlan_fdb_head(vxlan, mac, vni);  in __vxlan_find_mac()
420 			if (vxlan->cfg.flags & VXLAN_F_COLLECT_METADATA) {  in __vxlan_find_mac()
432 static struct vxlan_fdb *vxlan_find_mac(struct vxlan_dev *vxlan,  in vxlan_find_mac()  argument
437 	f = __vxlan_find_mac(vxlan, mac, vni);  in vxlan_find_mac()
465 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_fdb_find_uc()  local
479 	f = __vxlan_find_mac(vxlan, eth_addr, vni);  in vxlan_fdb_find_uc()
486 	vxlan_fdb_switchdev_notifier_info(vxlan, f, rdst, NULL, fdb_info);  in vxlan_fdb_find_uc()
495 				const struct vxlan_dev *vxlan,  in vxlan_fdb_notify_one()  argument
503 	vxlan_fdb_switchdev_notifier_info(vxlan, f, rdst, extack, &fdb_info);  in vxlan_fdb_notify_one()
513 	struct vxlan_dev *vxlan;  in vxlan_fdb_replay()  local
521 	vxlan = netdev_priv(dev);  in vxlan_fdb_replay()
524 		spin_lock_bh(&vxlan->hash_lock[h]);  in vxlan_fdb_replay()
525 		hlist_for_each_entry(f, &vxlan->fdb_head[h], hlist) {  in vxlan_fdb_replay()
528 					rc = vxlan_fdb_notify_one(nb, vxlan,  in vxlan_fdb_replay()
536 		spin_unlock_bh(&vxlan->hash_lock[h]);  in vxlan_fdb_replay()
541 	spin_unlock_bh(&vxlan->hash_lock[h]);  in vxlan_fdb_replay()
548 	struct vxlan_dev *vxlan;  in vxlan_fdb_clear_offload()  local
555 	vxlan = netdev_priv(dev);  in vxlan_fdb_clear_offload()
558 		spin_lock_bh(&vxlan->hash_lock[h]);  in vxlan_fdb_clear_offload()
559 		hlist_for_each_entry(f, &vxlan->fdb_head[h], hlist)  in vxlan_fdb_clear_offload()
563 		spin_unlock_bh(&vxlan->hash_lock[h]);  in vxlan_fdb_clear_offload()
793 static struct vxlan_fdb *vxlan_fdb_alloc(struct vxlan_dev *vxlan, const u8 *mac,  in vxlan_fdb_alloc()  argument
807 	RCU_INIT_POINTER(f->vdev, vxlan);  in vxlan_fdb_alloc()
815 static void vxlan_fdb_insert(struct vxlan_dev *vxlan, const u8 *mac,  in vxlan_fdb_insert()  argument
818 	++vxlan->addrcnt;  in vxlan_fdb_insert()
820 			   vxlan_fdb_head(vxlan, mac, src_vni));  in vxlan_fdb_insert()
823 static int vxlan_fdb_nh_update(struct vxlan_dev *vxlan, struct vxlan_fdb *fdb,  in vxlan_fdb_nh_update()  argument
833 	nh = nexthop_find_by_id(vxlan->net, nhid);  in vxlan_fdb_nh_update()
855 	switch (vxlan->default_dst.remote_ip.sa.sa_family) {  in vxlan_fdb_nh_update()
885 int vxlan_fdb_create(struct vxlan_dev *vxlan,  in vxlan_fdb_create()  argument
896 	if (vxlan->cfg.addrmax &&  in vxlan_fdb_create()
897 	    vxlan->addrcnt >= vxlan->cfg.addrmax)  in vxlan_fdb_create()
900 	netdev_dbg(vxlan->dev, "add %pM -> %pIS\n", mac, ip);  in vxlan_fdb_create()
901 	f = vxlan_fdb_alloc(vxlan, mac, state, src_vni, ndm_flags);  in vxlan_fdb_create()
906 		rc = vxlan_fdb_nh_update(vxlan, f, nhid, extack);  in vxlan_fdb_create()
947 static void vxlan_fdb_destroy(struct vxlan_dev *vxlan, struct vxlan_fdb *f,  in vxlan_fdb_destroy()  argument
952 	netdev_dbg(vxlan->dev, "delete %pM\n", f->eth_addr);  in vxlan_fdb_destroy()
954 	--vxlan->addrcnt;  in vxlan_fdb_destroy()
957 			vxlan_fdb_notify(vxlan, f, NULL, RTM_DELNEIGH,  in vxlan_fdb_destroy()
961 				vxlan_fdb_notify(vxlan, f, rd, RTM_DELNEIGH,  in vxlan_fdb_destroy()
978 static int vxlan_fdb_update_existing(struct vxlan_dev *vxlan,  in vxlan_fdb_update_existing()  argument
1028 				rc = vxlan_fdb_nh_update(vxlan, f, nhid, extack);  in vxlan_fdb_update_existing()
1058 		err = vxlan_fdb_notify(vxlan, f, rd, RTM_NEWNEIGH,  in vxlan_fdb_update_existing()
1078 static int vxlan_fdb_update_create(struct vxlan_dev *vxlan,  in vxlan_fdb_update_create()  argument
1095 	netdev_dbg(vxlan->dev, "add %pM -> %pIS\n", mac, ip);  in vxlan_fdb_update_create()
1096 	rc = vxlan_fdb_create(vxlan, mac, ip, state, port, src_vni,  in vxlan_fdb_update_create()
1101 	vxlan_fdb_insert(vxlan, mac, src_vni, f);  in vxlan_fdb_update_create()
1102 	rc = vxlan_fdb_notify(vxlan, f, first_remote_rtnl(f), RTM_NEWNEIGH,  in vxlan_fdb_update_create()
1110 	vxlan_fdb_destroy(vxlan, f, false, false);  in vxlan_fdb_update_create()
1115 int vxlan_fdb_update(struct vxlan_dev *vxlan,  in vxlan_fdb_update()  argument
1125 	f = __vxlan_find_mac(vxlan, mac, src_vni);  in vxlan_fdb_update()
1128 			netdev_dbg(vxlan->dev,  in vxlan_fdb_update()
1133 		return vxlan_fdb_update_existing(vxlan, ip, state, flags, port,  in vxlan_fdb_update()
1140 		return vxlan_fdb_update_create(vxlan, mac, ip, state, flags,  in vxlan_fdb_update()
1147 static void vxlan_fdb_dst_destroy(struct vxlan_dev *vxlan, struct vxlan_fdb *f,  in vxlan_fdb_dst_destroy()  argument
1151 	vxlan_fdb_notify(vxlan, f, rd, RTM_DELNEIGH, swdev_notify, NULL);  in vxlan_fdb_dst_destroy()
1155 static int vxlan_fdb_parse(struct nlattr *tb[], struct vxlan_dev *vxlan,  in vxlan_fdb_parse()  argument
1160 	struct net *net = dev_net(vxlan->dev);  in vxlan_fdb_parse()
1176 		union vxlan_addr *remote = &vxlan->default_dst.remote_ip;  in vxlan_fdb_parse()
1196 		*port = vxlan->cfg.dst_port;  in vxlan_fdb_parse()
1206 		*vni = vxlan->default_dst.remote_vni;  in vxlan_fdb_parse()
1216 		*src_vni = vxlan->default_dst.remote_vni;  in vxlan_fdb_parse()
1250 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_fdb_add()  local
1268 	err = vxlan_fdb_parse(tb, vxlan, &ip, &port, &src_vni, &vni, &ifindex,  in vxlan_fdb_add()
1273 	if (vxlan->default_dst.remote_ip.sa.sa_family != ip.sa.sa_family)  in vxlan_fdb_add()
1276 	hash_index = fdb_head_index(vxlan, addr, src_vni);  in vxlan_fdb_add()
1277 	spin_lock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_fdb_add()
1278 	err = vxlan_fdb_update(vxlan, addr, &ip, ndm->ndm_state, flags,  in vxlan_fdb_add()
1282 	spin_unlock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_fdb_add()
1287 int __vxlan_fdb_delete(struct vxlan_dev *vxlan,  in __vxlan_fdb_delete()  argument
1296 	f = vxlan_find_mac(vxlan, addr, src_vni);  in __vxlan_fdb_delete()
1310 		vxlan_fdb_dst_destroy(vxlan, f, rd, swdev_notify);  in __vxlan_fdb_delete()
1314 	vxlan_fdb_destroy(vxlan, f, true, swdev_notify);  in __vxlan_fdb_delete()
1326 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_fdb_delete()  local
1334 	err = vxlan_fdb_parse(tb, vxlan, &ip, &port, &src_vni, &vni, &ifindex,  in vxlan_fdb_delete()
1339 	hash_index = fdb_head_index(vxlan, addr, src_vni);  in vxlan_fdb_delete()
1340 	spin_lock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_fdb_delete()
1341 	err = __vxlan_fdb_delete(vxlan, addr, ip, port, src_vni, vni, ifindex,  in vxlan_fdb_delete()
1343 	spin_unlock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_fdb_delete()
1353 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_fdb_dump()  local
1361 		hlist_for_each_entry_rcu(f, &vxlan->fdb_head[h], hlist) {  in vxlan_fdb_dump()
1367 				err = vxlan_fdb_info(skb, vxlan, f,  in vxlan_fdb_dump()
1385 				err = vxlan_fdb_info(skb, vxlan, f,  in vxlan_fdb_dump()
1411 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_fdb_get()  local
1419 		vni = vxlan->default_dst.remote_vni;  in vxlan_fdb_get()
1423 	f = __vxlan_find_mac(vxlan, addr, vni);  in vxlan_fdb_get()
1430 	err = vxlan_fdb_info(skb, vxlan, f, portid, seq,  in vxlan_fdb_get()
1445 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_snoop()  local
1455 	f = vxlan_find_mac(vxlan, src_mac, vni);  in vxlan_snoop()
1478 		vxlan_fdb_notify(vxlan, f, rdst, RTM_NEWNEIGH, true, NULL);  in vxlan_snoop()
1480 		u32 hash_index = fdb_head_index(vxlan, src_mac, vni);  in vxlan_snoop()
1483 		spin_lock(&vxlan->hash_lock[hash_index]);  in vxlan_snoop()
1487 			vxlan_fdb_update(vxlan, src_mac, src_ip,  in vxlan_snoop()
1490 					 vxlan->cfg.dst_port,  in vxlan_snoop()
1492 					 vxlan->default_dst.remote_vni,  in vxlan_snoop()
1494 		spin_unlock(&vxlan->hash_lock[hash_index]);  in vxlan_snoop()
1521 static void vxlan_sock_release(struct vxlan_dev *vxlan)  in vxlan_sock_release()  argument
1523 	struct vxlan_sock *sock4 = rtnl_dereference(vxlan->vn4_sock);  in vxlan_sock_release()
1525 	struct vxlan_sock *sock6 = rtnl_dereference(vxlan->vn6_sock);  in vxlan_sock_release()
1527 	RCU_INIT_POINTER(vxlan->vn6_sock, NULL);  in vxlan_sock_release()
1530 	RCU_INIT_POINTER(vxlan->vn4_sock, NULL);  in vxlan_sock_release()
1533 	if (vxlan->cfg.flags & VXLAN_F_VNIFILTER)  in vxlan_sock_release()
1534 		vxlan_vs_del_vnigrp(vxlan);  in vxlan_sock_release()
1536 		vxlan_vs_del_dev(vxlan);  in vxlan_sock_release()
1603 static bool vxlan_set_mac(struct vxlan_dev *vxlan,  in vxlan_set_mac()  argument
1611 	skb->protocol = eth_type_trans(skb, vxlan->dev);  in vxlan_set_mac()
1615 	if (ether_addr_equal(eth_hdr(skb)->h_source, vxlan->dev->dev_addr))  in vxlan_set_mac()
1629 	if ((vxlan->cfg.flags & VXLAN_F_LEARN) &&  in vxlan_set_mac()
1664 	struct vxlan_dev *vxlan;  in vxlan_rcv()  local
1696 	vxlan = vxlan_vs_find_vni(vs, skb->dev->ifindex, vni, &vninode);  in vxlan_rcv()
1697 	if (!vxlan)  in vxlan_rcv()
1711 				   !net_eq(vxlan->net, dev_net(vxlan->dev))))  in vxlan_rcv()
1753 		if (!vxlan_set_mac(vxlan, vs, skb, vni))  in vxlan_rcv()
1757 		skb->dev = vxlan->dev;  in vxlan_rcv()
1765 		++vxlan->dev->stats.rx_frame_errors;  in vxlan_rcv()
1766 		++vxlan->dev->stats.rx_errors;  in vxlan_rcv()
1767 		vxlan_vnifilter_count(vxlan, vni, vninode,  in vxlan_rcv()
1774 	if (unlikely(!(vxlan->dev->flags & IFF_UP))) {  in vxlan_rcv()
1776 		dev_core_stats_rx_dropped_inc(vxlan->dev);  in vxlan_rcv()
1777 		vxlan_vnifilter_count(vxlan, vni, vninode,  in vxlan_rcv()
1782 	dev_sw_netstats_rx_add(vxlan->dev, skb->len);  in vxlan_rcv()
1783 	vxlan_vnifilter_count(vxlan, vni, vninode, VXLAN_VNI_STATS_RX, skb->len);  in vxlan_rcv()
1784 	gro_cells_receive(&vxlan->gro_cells, skb);  in vxlan_rcv()
1799 	struct vxlan_dev *vxlan;  in vxlan_err_lookup()  local
1817 	vxlan = vxlan_vs_find_vni(vs, skb->dev->ifindex, vni, NULL);  in vxlan_err_lookup()
1818 	if (!vxlan)  in vxlan_err_lookup()
1826 	struct vxlan_dev *vxlan = netdev_priv(dev);  in arp_reduce()  local
1871 		f = vxlan_find_mac(vxlan, n->ha, vni);  in arp_reduce()
1893 			vxlan_vnifilter_count(vxlan, vni, NULL,  in arp_reduce()
1897 	} else if (vxlan->cfg.flags & VXLAN_F_L3MISS) {  in arp_reduce()
2004 	struct vxlan_dev *vxlan = netdev_priv(dev);  in neigh_reduce()  local
2035 		f = vxlan_find_mac(vxlan, n->ha, vni);  in neigh_reduce()
2052 			vxlan_vnifilter_count(vxlan, vni, NULL,  in neigh_reduce()
2055 	} else if (vxlan->cfg.flags & VXLAN_F_L3MISS) {  in neigh_reduce()
2073 	struct vxlan_dev *vxlan = netdev_priv(dev);  in route_shortcircuit()  local
2089 		if (!n && (vxlan->cfg.flags & VXLAN_F_L3MISS)) {  in route_shortcircuit()
2110 		if (!n && (vxlan->cfg.flags & VXLAN_F_L3MISS)) {  in route_shortcircuit()
2218 static struct rtable *vxlan_get_route(struct vxlan_dev *vxlan, struct net_device *dev,  in vxlan_get_route()  argument
2251 	rt = ip_route_output_key(vxlan->net, &fl4);  in vxlan_get_route()
2270 static struct dst_entry *vxlan6_get_route(struct vxlan_dev *vxlan,  in vxlan6_get_route()  argument
2306 	ndst = ipv6_stub->ipv6_dst_lookup_flow(vxlan->net, sock6->sock->sk,  in vxlan6_get_route()
2378 				 struct vxlan_dev *vxlan,  in encap_bypass_if_local()  argument
2394 	    vxlan->cfg.flags & VXLAN_F_LOCALBYPASS) {  in encap_bypass_if_local()
2398 		dst_vxlan = vxlan_find_vni(vxlan->net, dst_ifindex, vni,  in encap_bypass_if_local()
2400 					   vxlan->cfg.flags);  in encap_bypass_if_local()
2403 			vxlan_vnifilter_count(vxlan, vni, NULL,  in encap_bypass_if_local()
2409 		vxlan_encap_bypass(skb, vxlan, dst_vxlan, vni, true);  in encap_bypass_if_local()
2421 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_xmit_one()  local
2433 	u32 flags = vxlan->cfg.flags;  in vxlan_xmit_one()
2435 	bool xnet = !net_eq(vxlan->net, dev_net(vxlan->dev));  in vxlan_xmit_one()
2448 				vxlan_encap_bypass(skb, vxlan, vxlan,  in vxlan_xmit_one()
2455 		dst_port = rdst->remote_port ? rdst->remote_port : vxlan->cfg.dst_port;  in vxlan_xmit_one()
2458 		local_ip = vxlan->cfg.saddr;  in vxlan_xmit_one()
2464 			ttl = vxlan->cfg.ttl;  in vxlan_xmit_one()
2469 		tos = vxlan->cfg.tos;  in vxlan_xmit_one()
2478 		label = vxlan->cfg.label;  in vxlan_xmit_one()
2495 		dst_port = info->key.tp_dst ? : vxlan->cfg.dst_port;  in vxlan_xmit_one()
2512 	src_port = udp_flow_src_port(dev_net(dev), skb, vxlan->cfg.port_min,  in vxlan_xmit_one()
2513 				     vxlan->cfg.port_max, true);  in vxlan_xmit_one()
2517 		struct vxlan_sock *sock4 = rcu_dereference(vxlan->vn4_sock);  in vxlan_xmit_one()
2524 		rt = vxlan_get_route(vxlan, dev, sock4, skb, ifindex, tos,  in vxlan_xmit_one()
2536 			err = encap_bypass_if_local(skb, dev, vxlan, dst,  in vxlan_xmit_one()
2542 			if (vxlan->cfg.df == VXLAN_DF_SET) {  in vxlan_xmit_one()
2544 			} else if (vxlan->cfg.df == VXLAN_DF_INHERIT) {  in vxlan_xmit_one()
2575 			vxlan_encap_bypass(skb, vxlan, vxlan, vni, false);  in vxlan_xmit_one()
2592 		struct vxlan_sock *sock6 = rcu_dereference(vxlan->vn6_sock);  in vxlan_xmit_one()
2597 		ndst = vxlan6_get_route(vxlan, dev, sock6, skb, ifindex, tos,  in vxlan_xmit_one()
2611 			err = encap_bypass_if_local(skb, dev, vxlan, dst,  in vxlan_xmit_one()
2638 			vxlan_encap_bypass(skb, vxlan, vxlan, vni, false);  in vxlan_xmit_one()
2657 	vxlan_vnifilter_count(vxlan, vni, NULL, VXLAN_VNI_STATS_TX, pkt_len);  in vxlan_xmit_one()
2664 	vxlan_vnifilter_count(vxlan, vni, NULL, VXLAN_VNI_STATS_TX_DROPS, 0);  in vxlan_xmit_one()
2676 	vxlan_vnifilter_count(vxlan, vni, NULL, VXLAN_VNI_STATS_TX_ERRORS, 0);  in vxlan_xmit_one()
2717 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_xmit_nhid()  local
2735 	if (vxlan->cfg.saddr.sa.sa_family != nh_rdst.remote_ip.sa.sa_family)  in vxlan_xmit_nhid()
2761 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_xmit()  local
2774 	if (vxlan->cfg.flags & VXLAN_F_COLLECT_METADATA) {  in vxlan_xmit()
2788 	if (vxlan->cfg.flags & VXLAN_F_PROXY) {  in vxlan_xmit()
2809 	if (vxlan->cfg.flags & VXLAN_F_MDB) {  in vxlan_xmit()
2813 		mdb_entry = vxlan_mdb_entry_skb_get(vxlan, skb, vni);  in vxlan_xmit()
2817 			ret = vxlan_mdb_xmit(vxlan, mdb_entry, skb);  in vxlan_xmit()
2825 	f = vxlan_find_mac(vxlan, eth->h_dest, vni);  in vxlan_xmit()
2828 	if (f && (f->flags & NTF_ROUTER) && (vxlan->cfg.flags & VXLAN_F_RSC) &&  in vxlan_xmit()
2833 			f = vxlan_find_mac(vxlan, eth->h_dest, vni);  in vxlan_xmit()
2837 		f = vxlan_find_mac(vxlan, all_zeros_mac, vni);  in vxlan_xmit()
2839 			if ((vxlan->cfg.flags & VXLAN_F_L2MISS) &&  in vxlan_xmit()
2841 				vxlan_fdb_miss(vxlan, eth->h_dest);  in vxlan_xmit()
2844 			vxlan_vnifilter_count(vxlan, vni, NULL,  in vxlan_xmit()
2853 			      (vni ? : vxlan->default_dst.remote_vni), did_rsc);  in vxlan_xmit()
2878 	struct vxlan_dev *vxlan = from_timer(vxlan, t, age_timer);  in vxlan_cleanup()  local
2882 	if (!netif_running(vxlan->dev))  in vxlan_cleanup()
2888 		spin_lock(&vxlan->hash_lock[h]);  in vxlan_cleanup()
2889 		hlist_for_each_safe(p, n, &vxlan->fdb_head[h]) {  in vxlan_cleanup()
2900 			timeout = f->used + vxlan->cfg.age_interval * HZ;  in vxlan_cleanup()
2902 				netdev_dbg(vxlan->dev,  in vxlan_cleanup()
2906 				vxlan_fdb_destroy(vxlan, f, true, true);  in vxlan_cleanup()
2910 		spin_unlock(&vxlan->hash_lock[h]);  in vxlan_cleanup()
2913 	mod_timer(&vxlan->age_timer, next_timer);  in vxlan_cleanup()
2916 static void vxlan_vs_del_dev(struct vxlan_dev *vxlan)  in vxlan_vs_del_dev()  argument
2918 	struct vxlan_net *vn = net_generic(vxlan->net, vxlan_net_id);  in vxlan_vs_del_dev()
2921 	hlist_del_init_rcu(&vxlan->hlist4.hlist);  in vxlan_vs_del_dev()
2923 	hlist_del_init_rcu(&vxlan->hlist6.hlist);  in vxlan_vs_del_dev()
2928 static void vxlan_vs_add_dev(struct vxlan_sock *vs, struct vxlan_dev *vxlan,  in vxlan_vs_add_dev()  argument
2931 	struct vxlan_net *vn = net_generic(vxlan->net, vxlan_net_id);  in vxlan_vs_add_dev()
2932 	__be32 vni = vxlan->default_dst.remote_vni;  in vxlan_vs_add_dev()
2934 	node->vxlan = vxlan;  in vxlan_vs_add_dev()
2943 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_init()  local
2946 	if (vxlan->cfg.flags & VXLAN_F_VNIFILTER)  in vxlan_init()
2947 		vxlan_vnigroup_init(vxlan);  in vxlan_init()
2955 	err = gro_cells_init(&vxlan->gro_cells, dev);  in vxlan_init()
2959 	err = vxlan_mdb_init(vxlan);  in vxlan_init()
2966 	gro_cells_destroy(&vxlan->gro_cells);  in vxlan_init()
2970 	if (vxlan->cfg.flags & VXLAN_F_VNIFILTER)  in vxlan_init()
2971 		vxlan_vnigroup_uninit(vxlan);  in vxlan_init()
2975 static void vxlan_fdb_delete_default(struct vxlan_dev *vxlan, __be32 vni)  in vxlan_fdb_delete_default()  argument
2978 	u32 hash_index = fdb_head_index(vxlan, all_zeros_mac, vni);  in vxlan_fdb_delete_default()
2980 	spin_lock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_fdb_delete_default()
2981 	f = __vxlan_find_mac(vxlan, all_zeros_mac, vni);  in vxlan_fdb_delete_default()
2983 		vxlan_fdb_destroy(vxlan, f, true, true);  in vxlan_fdb_delete_default()
2984 	spin_unlock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_fdb_delete_default()
2989 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_uninit()  local
2991 	vxlan_mdb_fini(vxlan);  in vxlan_uninit()
2993 	if (vxlan->cfg.flags & VXLAN_F_VNIFILTER)  in vxlan_uninit()
2994 		vxlan_vnigroup_uninit(vxlan);  in vxlan_uninit()
2996 	gro_cells_destroy(&vxlan->gro_cells);  in vxlan_uninit()
2998 	vxlan_fdb_delete_default(vxlan, vxlan->cfg.vni);  in vxlan_uninit()
3006 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_open()  local
3009 	ret = vxlan_sock_add(vxlan);  in vxlan_open()
3013 	ret = vxlan_multicast_join(vxlan);  in vxlan_open()
3015 		vxlan_sock_release(vxlan);  in vxlan_open()
3019 	if (vxlan->cfg.age_interval)  in vxlan_open()
3020 		mod_timer(&vxlan->age_timer, jiffies + FDB_AGE_INTERVAL);  in vxlan_open()
3026 static void vxlan_flush(struct vxlan_dev *vxlan, bool do_all)  in vxlan_flush()  argument
3033 		spin_lock_bh(&vxlan->hash_lock[h]);  in vxlan_flush()
3034 		hlist_for_each_safe(p, n, &vxlan->fdb_head[h]) {  in vxlan_flush()
3041 			    f->vni == vxlan->cfg.vni)  in vxlan_flush()
3043 			vxlan_fdb_destroy(vxlan, f, true, true);  in vxlan_flush()
3045 		spin_unlock_bh(&vxlan->hash_lock[h]);  in vxlan_flush()
3052 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_stop()  local
3054 	vxlan_multicast_leave(vxlan);  in vxlan_stop()
3056 	del_timer_sync(&vxlan->age_timer);  in vxlan_stop()
3058 	vxlan_flush(vxlan, false);  in vxlan_stop()
3059 	vxlan_sock_release(vxlan);  in vxlan_stop()
3071 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_change_mtu()  local
3072 	struct vxlan_rdst *dst = &vxlan->default_dst;  in vxlan_change_mtu()
3073 	struct net_device *lowerdev = __dev_get_by_index(vxlan->net,  in vxlan_change_mtu()
3080 		int max_mtu = lowerdev->mtu - vxlan_headroom(vxlan->cfg.flags);  in vxlan_change_mtu()
3091 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_fill_metadata_dst()  local
3095 	sport = udp_flow_src_port(dev_net(dev), skb, vxlan->cfg.port_min,  in vxlan_fill_metadata_dst()
3096 				  vxlan->cfg.port_max, true);  in vxlan_fill_metadata_dst()
3097 	dport = info->key.tp_dst ? : vxlan->cfg.dst_port;  in vxlan_fill_metadata_dst()
3100 		struct vxlan_sock *sock4 = rcu_dereference(vxlan->vn4_sock);  in vxlan_fill_metadata_dst()
3103 		rt = vxlan_get_route(vxlan, dev, sock4, skb, 0, info->key.tos,  in vxlan_fill_metadata_dst()
3113 		struct vxlan_sock *sock6 = rcu_dereference(vxlan->vn6_sock);  in vxlan_fill_metadata_dst()
3116 		ndst = vxlan6_get_route(vxlan, dev, sock6, skb, 0, info->key.tos,  in vxlan_fill_metadata_dst()
3202 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_setup()  local
3227 	INIT_LIST_HEAD(&vxlan->next);  in vxlan_setup()
3229 	timer_setup(&vxlan->age_timer, vxlan_cleanup, TIMER_DEFERRABLE);  in vxlan_setup()
3231 	vxlan->dev = dev;  in vxlan_setup()
3234 		spin_lock_init(&vxlan->hash_lock[h]);  in vxlan_setup()
3235 		INIT_HLIST_HEAD(&vxlan->fdb_head[h]);  in vxlan_setup()
3368 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_get_link_ksettings()  local
3369 	struct vxlan_rdst *dst = &vxlan->default_dst;  in vxlan_get_link_ksettings()
3370 	struct net_device *lowerdev = __dev_get_by_index(vxlan->net,  in vxlan_get_link_ksettings()
3476 static int __vxlan_sock_add(struct vxlan_dev *vxlan, bool ipv6)  in __vxlan_sock_add()  argument
3478 	struct vxlan_net *vn = net_generic(vxlan->net, vxlan_net_id);  in __vxlan_sock_add()
3479 	bool metadata = vxlan->cfg.flags & VXLAN_F_COLLECT_METADATA;  in __vxlan_sock_add()
3484 	if (vxlan->cfg.remote_ifindex)  in __vxlan_sock_add()
3486 			vxlan->net, vxlan->cfg.remote_ifindex);  in __vxlan_sock_add()
3488 	if (!vxlan->cfg.no_share) {  in __vxlan_sock_add()
3490 		vs = vxlan_find_sock(vxlan->net, ipv6 ? AF_INET6 : AF_INET,  in __vxlan_sock_add()
3491 				     vxlan->cfg.dst_port, vxlan->cfg.flags,  in __vxlan_sock_add()
3500 		vs = vxlan_socket_create(vxlan->net, ipv6,  in __vxlan_sock_add()
3501 					 vxlan->cfg.dst_port, vxlan->cfg.flags,  in __vxlan_sock_add()
3507 		rcu_assign_pointer(vxlan->vn6_sock, vs);  in __vxlan_sock_add()
3508 		node = &vxlan->hlist6;  in __vxlan_sock_add()
3512 		rcu_assign_pointer(vxlan->vn4_sock, vs);  in __vxlan_sock_add()
3513 		node = &vxlan->hlist4;  in __vxlan_sock_add()
3516 	if (metadata && (vxlan->cfg.flags & VXLAN_F_VNIFILTER))  in __vxlan_sock_add()
3517 		vxlan_vs_add_vnigrp(vxlan, vs, ipv6);  in __vxlan_sock_add()
3519 		vxlan_vs_add_dev(vs, vxlan, node);  in __vxlan_sock_add()
3524 static int vxlan_sock_add(struct vxlan_dev *vxlan)  in vxlan_sock_add()  argument
3526 	bool metadata = vxlan->cfg.flags & VXLAN_F_COLLECT_METADATA;  in vxlan_sock_add()
3527 	bool ipv6 = vxlan->cfg.flags & VXLAN_F_IPV6 || metadata;  in vxlan_sock_add()
3531 	RCU_INIT_POINTER(vxlan->vn4_sock, NULL);  in vxlan_sock_add()
3533 	RCU_INIT_POINTER(vxlan->vn6_sock, NULL);  in vxlan_sock_add()
3535 		ret = __vxlan_sock_add(vxlan, true);  in vxlan_sock_add()
3541 		ret = __vxlan_sock_add(vxlan, false);  in vxlan_sock_add()
3543 		vxlan_sock_release(vxlan);  in vxlan_sock_add()
3547 int vxlan_vni_in_use(struct net *src_net, struct vxlan_dev *vxlan,  in vxlan_vni_in_use()  argument
3554 		if (tmp == vxlan)  in vxlan_vni_in_use()
3730 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_config_apply()  local
3731 	struct vxlan_rdst *dst = &vxlan->default_dst;  in vxlan_config_apply()
3745 		vxlan->net = src_net;  in vxlan_config_apply()
3778 	memcpy(&vxlan->cfg, conf, sizeof(*conf));  in vxlan_config_apply()
3785 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_dev_configure()  local
3789 	ret = vxlan_config_validate(src_net, conf, &lowerdev, vxlan, extack);  in vxlan_dev_configure()
3803 	struct vxlan_dev *vxlan = netdev_priv(dev);  in __vxlan_dev_create()  local
3810 	dst = &vxlan->default_dst;  in __vxlan_dev_create()
3819 		err = vxlan_fdb_create(vxlan, all_zeros_mac,  in __vxlan_dev_create()
3822 				       vxlan->cfg.dst_port,  in __vxlan_dev_create()
3853 		vxlan_fdb_insert(vxlan, all_zeros_mac, dst->remote_vni, f);  in __vxlan_dev_create()
3856 		err = vxlan_fdb_notify(vxlan, f, first_remote_rtnl(f),  in __vxlan_dev_create()
3859 			vxlan_fdb_destroy(vxlan, f, false, false);  in __vxlan_dev_create()
3866 	list_add(&vxlan->next, &vn->vxlan_list);  in __vxlan_dev_create()
3918 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_nl2conf()  local
3925 		memcpy(conf, &vxlan->cfg, sizeof(*conf));  in vxlan_nl2conf()
4215 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_changelink()  local
4221 	dst = &vxlan->default_dst;  in vxlan_changelink()
4226 	err = vxlan_config_validate(vxlan->net, &conf, &lowerdev,  in vxlan_changelink()
4227 				    vxlan, extack);  in vxlan_changelink()
4241 		u32 hash_index = fdb_head_index(vxlan, all_zeros_mac, conf.vni);  in vxlan_changelink()
4243 		spin_lock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_changelink()
4245 			err = vxlan_fdb_update(vxlan, all_zeros_mac,  in vxlan_changelink()
4249 					       vxlan->cfg.dst_port,  in vxlan_changelink()
4254 				spin_unlock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_changelink()
4261 			__vxlan_fdb_delete(vxlan, all_zeros_mac,  in vxlan_changelink()
4263 					   vxlan->cfg.dst_port,  in vxlan_changelink()
4268 		spin_unlock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_changelink()
4273 		if (vxlan->cfg.flags & VXLAN_F_VNIFILTER) {  in vxlan_changelink()
4274 			err = vxlan_vnilist_update_group(vxlan, &dst->remote_ip,  in vxlan_changelink()
4284 	if (conf.age_interval != vxlan->cfg.age_interval)  in vxlan_changelink()
4285 		mod_timer(&vxlan->age_timer, jiffies);  in vxlan_changelink()
4290 	vxlan_config_apply(dev, &conf, lowerdev, vxlan->net, true);  in vxlan_changelink()
4296 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_dellink()  local
4298 	vxlan_flush(vxlan, true);  in vxlan_dellink()
4300 	list_del(&vxlan->next);  in vxlan_dellink()
4302 	if (vxlan->default_dst.remote_dev)  in vxlan_dellink()
4303 		netdev_upper_dev_unlink(vxlan->default_dst.remote_dev, dev);  in vxlan_dellink()
4343 	const struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_fill_info()  local
4344 	const struct vxlan_rdst *dst = &vxlan->default_dst;  in vxlan_fill_info()
4346 		.low =  htons(vxlan->cfg.port_min),  in vxlan_fill_info()
4347 		.high = htons(vxlan->cfg.port_max),  in vxlan_fill_info()
4370 	if (!vxlan_addr_any(&vxlan->cfg.saddr)) {  in vxlan_fill_info()
4371 		if (vxlan->cfg.saddr.sa.sa_family == AF_INET) {  in vxlan_fill_info()
4373 					    vxlan->cfg.saddr.sin.sin_addr.s_addr))  in vxlan_fill_info()
4378 					     &vxlan->cfg.saddr.sin6.sin6_addr))  in vxlan_fill_info()
4384 	if (nla_put_u8(skb, IFLA_VXLAN_TTL, vxlan->cfg.ttl) ||  in vxlan_fill_info()
4386 		       !!(vxlan->cfg.flags & VXLAN_F_TTL_INHERIT)) ||  in vxlan_fill_info()
4387 	    nla_put_u8(skb, IFLA_VXLAN_TOS, vxlan->cfg.tos) ||  in vxlan_fill_info()
4388 	    nla_put_u8(skb, IFLA_VXLAN_DF, vxlan->cfg.df) ||  in vxlan_fill_info()
4389 	    nla_put_be32(skb, IFLA_VXLAN_LABEL, vxlan->cfg.label) ||  in vxlan_fill_info()
4391 		       !!(vxlan->cfg.flags & VXLAN_F_LEARN)) ||  in vxlan_fill_info()
4393 		       !!(vxlan->cfg.flags & VXLAN_F_PROXY)) ||  in vxlan_fill_info()
4395 		       !!(vxlan->cfg.flags & VXLAN_F_RSC)) ||  in vxlan_fill_info()
4397 		       !!(vxlan->cfg.flags & VXLAN_F_L2MISS)) ||  in vxlan_fill_info()
4399 		       !!(vxlan->cfg.flags & VXLAN_F_L3MISS)) ||  in vxlan_fill_info()
4401 		       !!(vxlan->cfg.flags & VXLAN_F_COLLECT_METADATA)) ||  in vxlan_fill_info()
4402 	    nla_put_u32(skb, IFLA_VXLAN_AGEING, vxlan->cfg.age_interval) ||  in vxlan_fill_info()
4403 	    nla_put_u32(skb, IFLA_VXLAN_LIMIT, vxlan->cfg.addrmax) ||  in vxlan_fill_info()
4404 	    nla_put_be16(skb, IFLA_VXLAN_PORT, vxlan->cfg.dst_port) ||  in vxlan_fill_info()
4406 		       !(vxlan->cfg.flags & VXLAN_F_UDP_ZERO_CSUM_TX)) ||  in vxlan_fill_info()
4408 		       !!(vxlan->cfg.flags & VXLAN_F_UDP_ZERO_CSUM6_TX)) ||  in vxlan_fill_info()
4410 		       !!(vxlan->cfg.flags & VXLAN_F_UDP_ZERO_CSUM6_RX)) ||  in vxlan_fill_info()
4412 		       !!(vxlan->cfg.flags & VXLAN_F_REMCSUM_TX)) ||  in vxlan_fill_info()
4414 		       !!(vxlan->cfg.flags & VXLAN_F_REMCSUM_RX)) ||  in vxlan_fill_info()
4416 		       !!(vxlan->cfg.flags & VXLAN_F_LOCALBYPASS)))  in vxlan_fill_info()
4422 	if (vxlan->cfg.flags & VXLAN_F_GBP &&  in vxlan_fill_info()
4426 	if (vxlan->cfg.flags & VXLAN_F_GPE &&  in vxlan_fill_info()
4430 	if (vxlan->cfg.flags & VXLAN_F_REMCSUM_NOPARTIAL &&  in vxlan_fill_info()
4434 	if (vxlan->cfg.flags & VXLAN_F_VNIFILTER &&  in vxlan_fill_info()
4436 		       !!(vxlan->cfg.flags & VXLAN_F_VNIFILTER)))  in vxlan_fill_info()
4447 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_get_link_net()  local
4449 	return vxlan->net;  in vxlan_get_link_net()
4504 	struct vxlan_dev *vxlan, *next;  in vxlan_handle_lowerdev_unregister()  local
4507 	list_for_each_entry_safe(vxlan, next, &vn->vxlan_list, next) {  in vxlan_handle_lowerdev_unregister()
4508 		struct vxlan_rdst *dst = &vxlan->default_dst;  in vxlan_handle_lowerdev_unregister()
4517 			vxlan_dellink(vxlan->dev, &list_kill);  in vxlan_handle_lowerdev_unregister()
4547 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_fdb_offloaded_set()  local
4552 	hash_index = fdb_head_index(vxlan, fdb_info->eth_addr, fdb_info->vni);  in vxlan_fdb_offloaded_set()
4554 	spin_lock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_fdb_offloaded_set()
4556 	f = vxlan_find_mac(vxlan, fdb_info->eth_addr, fdb_info->vni);  in vxlan_fdb_offloaded_set()
4570 	spin_unlock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_fdb_offloaded_set()
4577 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_fdb_external_learn_add()  local
4582 	hash_index = fdb_head_index(vxlan, fdb_info->eth_addr, fdb_info->vni);  in vxlan_fdb_external_learn_add()
4585 	spin_lock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_fdb_external_learn_add()
4586 	err = vxlan_fdb_update(vxlan, fdb_info->eth_addr, &fdb_info->remote_ip,  in vxlan_fdb_external_learn_add()
4595 	spin_unlock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_fdb_external_learn_add()
4604 	struct vxlan_dev *vxlan = netdev_priv(dev);  in vxlan_fdb_external_learn_del()  local
4609 	hash_index = fdb_head_index(vxlan, fdb_info->eth_addr, fdb_info->vni);  in vxlan_fdb_external_learn_del()
4610 	spin_lock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_fdb_external_learn_del()
4612 	f = vxlan_find_mac(vxlan, fdb_info->eth_addr, fdb_info->vni);  in vxlan_fdb_external_learn_del()
4616 		err = __vxlan_fdb_delete(vxlan, fdb_info->eth_addr,  in vxlan_fdb_external_learn_del()
4624 	spin_unlock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_fdb_external_learn_del()
4672 	struct vxlan_dev *vxlan;  in vxlan_fdb_nh_flush()  local
4677 		vxlan = rcu_dereference(fdb->vdev);  in vxlan_fdb_nh_flush()
4678 		WARN_ON(!vxlan);  in vxlan_fdb_nh_flush()
4679 		hash_index = fdb_head_index(vxlan, fdb->eth_addr,  in vxlan_fdb_nh_flush()
4680 					    vxlan->default_dst.remote_vni);  in vxlan_fdb_nh_flush()
4681 		spin_lock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_fdb_nh_flush()
4683 			vxlan_fdb_destroy(vxlan, fdb, false, false);  in vxlan_fdb_nh_flush()
4684 		spin_unlock_bh(&vxlan->hash_lock[hash_index]);  in vxlan_fdb_nh_flush()
4726 	struct vxlan_dev *vxlan, *next;  in vxlan_destroy_tunnels()  local
4733 	list_for_each_entry_safe(vxlan, next, &vn->vxlan_list, next) {  in vxlan_destroy_tunnels()
4737 		if (!net_eq(dev_net(vxlan->dev), net))  in vxlan_destroy_tunnels()
4738 			unregister_netdevice_queue(vxlan->dev, head);  in vxlan_destroy_tunnels()