Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#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;
24 struct udp_offload udp_offloads;
25};
26
27#define VXLAN_F_LEARN 0x01
28#define VXLAN_F_PROXY 0x02
29#define VXLAN_F_RSC 0x04
30#define VXLAN_F_L2MISS 0x08
31#define VXLAN_F_L3MISS 0x10
32#define VXLAN_F_IPV6 0x20
33#define VXLAN_F_UDP_CSUM 0x40
34#define VXLAN_F_UDP_ZERO_CSUM6_TX 0x80
35#define VXLAN_F_UDP_ZERO_CSUM6_RX 0x100
36
37struct vxlan_sock *vxlan_sock_add(struct net *net, __be16 port,
38 vxlan_rcv_t *rcv, void *data,
39 bool no_share, u32 flags);
40
41void vxlan_sock_release(struct vxlan_sock *vs);
42
43int vxlan_xmit_skb(struct vxlan_sock *vs,
44 struct rtable *rt, struct sk_buff *skb,
45 __be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df,
46 __be16 src_port, __be16 dst_port, __be32 vni, bool xnet);
47
48__be16 vxlan_src_port(__u16 port_min, __u16 port_max, struct sk_buff *skb);
49
50/* IP header + UDP + VXLAN + Ethernet header */
51#define VXLAN_HEADROOM (20 + 8 + 8 + 14)
52/* IPv6 header + UDP + VXLAN + Ethernet header */
53#define VXLAN6_HEADROOM (40 + 8 + 8 + 14)
54
55#if IS_ENABLED(CONFIG_VXLAN)
56void vxlan_get_rx_port(struct net_device *netdev);
57#else
58static inline void vxlan_get_rx_port(struct net_device *netdev)
59{
60}
61#endif
62#endif