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Pravin B Shelar012a5722013-08-19 11:23:07 -07001#ifndef __NET_VXLAN_H
2#define __NET_VXLAN_H 1
3
4#include <linux/skbuff.h>
5#include <linux/netdevice.h>
6#include <linux/udp.h>
7
8#define VNI_HASH_BITS 10
9#define VNI_HASH_SIZE (1<<VNI_HASH_BITS)
10
11struct vxlan_sock;
12typedef void (vxlan_rcv_t)(struct vxlan_sock *vh, struct sk_buff *skb, __be32 key);
13
14/* per UDP socket information */
15struct vxlan_sock {
16 struct hlist_node hlist;
17 vxlan_rcv_t *rcv;
18 void *data;
19 struct work_struct del_work;
20 struct socket *sock;
21 struct rcu_head rcu;
22 struct hlist_head vni_list[VNI_HASH_SIZE];
23 atomic_t refcnt;
Or Gerlitzdc01e7d2014-01-20 13:59:21 +020024 struct udp_offload udp_offloads;
Pravin B Shelar012a5722013-08-19 11:23:07 -070025};
26
27struct vxlan_sock *vxlan_sock_add(struct net *net, __be16 port,
28 vxlan_rcv_t *rcv, void *data,
Cong Wange4c7ed42013-08-31 13:44:33 +080029 bool no_share, bool ipv6);
Pravin B Shelar012a5722013-08-19 11:23:07 -070030
31void vxlan_sock_release(struct vxlan_sock *vs);
Pravin B Shelar49560532013-08-19 11:23:17 -070032
Nicolas Dichtel11796182013-09-02 15:34:55 +020033int vxlan_xmit_skb(struct vxlan_sock *vs,
Pravin B Shelar49560532013-08-19 11:23:17 -070034 struct rtable *rt, struct sk_buff *skb,
35 __be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df,
36 __be16 src_port, __be16 dst_port, __be32 vni);
37
38__be16 vxlan_src_port(__u16 port_min, __u16 port_max, struct sk_buff *skb);
39
Joseph Gasparakise6cd9882013-10-24 06:27:10 +000040/* IP header + UDP + VXLAN + Ethernet header */
41#define VXLAN_HEADROOM (20 + 8 + 8 + 14)
42/* IPv6 header + UDP + VXLAN + Ethernet header */
43#define VXLAN6_HEADROOM (40 + 8 + 8 + 14)
44
45#if IS_ENABLED(CONFIG_VXLAN)
Joseph Gasparakis53cf52752013-09-04 02:13:38 -070046void vxlan_get_rx_port(struct net_device *netdev);
Joseph Gasparakise6cd9882013-10-24 06:27:10 +000047#else
48static inline void vxlan_get_rx_port(struct net_device *netdev)
49{
50}
51#endif
Pravin B Shelar012a5722013-08-19 11:23:07 -070052#endif