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/* $OpenBSD: if_vxlan.h,v 1.11 2016/09/03 13:46:57 reyk Exp $ */
/*
* Copyright (c) 2013 Reyk Floeter <reyk@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _NET_VXLAN_H
#define _NET_VXLAN_H
#define VXLANMTU 1492
#define VXLAN_HDRLEN 8
#define VXLAN_PORT 4789
struct vxlan_header {
u_int32_t vxlan_flags;
#define VXLAN_FLAGS_VNI 0x08000000
#define VXLAN_RESERVED1 0xf7ffffff
u_int32_t vxlan_id;
#define VXLAN_VNI 0xffffff00
#define VXLAN_VNI_S 8
#define VXLAN_RESERVED2 0x000000ff
} __packed;
#define VXLAN_VNI_MAX 0x00ffffff /* 24bit vnetid */
#define VXLAN_VNI_MIN 0x00000000 /* 24bit vnetid */
#define VXLAN_VNI_UNSET 0x01ffffff /* used internally */
#define VXLAN_VNI_ANY -1ULL /* -1 accept any vnetid */
struct vxlanudphdr {
struct udphdr vu_u;
struct vxlan_header vu_v;
} __packed;
#ifdef _KERNEL
extern int vxlan_enable;
int vxlan_lookup(struct mbuf *, struct udphdr *, int,
struct sockaddr *, struct sockaddr *);
struct sockaddr *vxlan_tag_find(struct mbuf *);
struct sockaddr *vxlan_tag_get(struct mbuf *, int);
void vxlan_tag_delete(struct mbuf *);
#endif /* _KERNEL */
#endif /* _NET_VXLAN_H */
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