/*-
* Copyright (c) 2014, Bryan Venteicher <bryanv@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _NET_IF_VXLAN_H_
#define _NET_IF_VXLAN_H_
#include <sys/types.h>
#include <sys/socket.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <netinet/in.h>
struct vxlan_header {
uint32_t vxlh_flags;
uint32_t vxlh_vni;
};
#define VXLAN_HDR_FLAGS_VALID_VNI 0x08000000
#define VXLAN_HDR_VNI_SHIFT 8
#define VXLAN_VNI_MAX (1 << 24)
#define VXLAN_VNI_MASK (VXLAN_VNI_MAX - 1)
/*
* The port assigned by IANA is 4789, but some early implementations
* (like Linux) use 8472 instead. If not specified, we default to
* the IANA port.
*/
#define VXLAN_PORT 4789
#define VXLAN_LEGACY_PORT 8472
union vxlan_sockaddr {
struct sockaddr sa;
struct sockaddr_in in4;
struct sockaddr_in6 in6;
};
struct ifvxlanparam {
uint64_t vxlp_with;
#define VXLAN_PARAM_WITH_VNI 0x0001
#define VXLAN_PARAM_WITH_LOCAL_ADDR4 0x0002
#define VXLAN_PARAM_WITH_LOCAL_ADDR6 0x0004
#define VXLAN_PARAM_WITH_REMOTE_ADDR4 0x0008
#define VXLAN_PARAM_WITH_REMOTE_ADDR6 0x0010
#define VXLAN_PARAM_WITH_LOCAL_PORT 0x0020
#define VXLAN_PARAM_WITH_REMOTE_PORT 0x0040
#define VXLAN_PARAM_WITH_PORT_RANGE 0x0080
#define VXLAN_PARAM_WITH_FTABLE_TIMEOUT 0x0100
#define VXLAN_PARAM_WITH_FTABLE_MAX 0x0200
#define VXLAN_PARAM_WITH_MULTICAST_IF 0x0400
#define VXLAN_PARAM_WITH_TTL 0x0800
#define VXLAN_PARAM_WITH_LEARN 0x1000
uint32_t vxlp_vni;
union vxlan_sockaddr vxlp_local_sa;
union vxlan_sockaddr vxlp_remote_sa;
uint16_t vxlp_local_port;
uint16_t vxlp_remote_port;
uint16_t vxlp_min_port;
uint16_t vxlp_max_port;
char vxlp_mc_ifname[IFNAMSIZ];
uint32_t vxlp_ftable_timeout;
uint32_t vxlp_ftable_max;
uint8_t vxlp_ttl;
uint8_t vxlp_learn;
};
#define VXLAN_SOCKADDR_IS_IPV4(_vxsin) ((_vxsin)->sa.sa_family == AF_INET)
#define VXLAN_SOCKADDR_IS_IPV6(_vxsin) ((_vxsin)->sa.sa_family == AF_INET6)
#define VXLAN_SOCKADDR_IS_IPV46(_vxsin) \
(VXLAN_SOCKADDR_IS_IPV4(_vxsin) || VXLAN_SOCKADDR_IS_IPV6(_vxsin))
#define VXLAN_CMD_GET_CONFIG 0
#define VXLAN_CMD_SET_VNI 1
#define VXLAN_CMD_SET_LOCAL_ADDR 2
#define VXLAN_CMD_SET_REMOTE_ADDR 4
#define VXLAN_CMD_SET_LOCAL_PORT 5
#define VXLAN_CMD_SET_REMOTE_PORT 6
#define VXLAN_CMD_SET_PORT_RANGE 7
#define VXLAN_CMD_SET_FTABLE_TIMEOUT 8
#define VXLAN_CMD_SET_FTABLE_MAX 9
#define VXLAN_CMD_SET_MULTICAST_IF 10
#define VXLAN_CMD_SET_TTL 11
#define VXLAN_CMD_SET_LEARN 12
#define VXLAN_CMD_FTABLE_ENTRY_ADD 13
#define VXLAN_CMD_FTABLE_ENTRY_REM 14
#define VXLAN_CMD_FLUSH 15
struct ifvxlancfg {
uint32_t vxlc_vni;
union vxlan_sockaddr vxlc_local_sa;
union vxlan_sockaddr vxlc_remote_sa;
uint32_t vxlc_mc_ifindex;
uint32_t vxlc_ftable_cnt;
uint32_t vxlc_ftable_max;
uint32_t vxlc_ftable_timeout;
uint16_t vxlc_port_min;
uint16_t vxlc_port_max;
uint8_t vxlc_learn;
uint8_t vxlc_ttl;
};
struct ifvxlancmd {
uint32_t vxlcmd_flags;
#define VXLAN_CMD_FLAG_FLUSH_ALL 0x0001
#define VXLAN_CMD_FLAG_LEARN 0x0002
uint32_t vxlcmd_vni;
uint32_t vxlcmd_ftable_timeout;
uint32_t vxlcmd_ftable_max;
uint16_t vxlcmd_port;
uint16_t vxlcmd_port_min;
uint16_t vxlcmd_port_max;
uint8_t vxlcmd_mac[ETHER_ADDR_LEN];
uint8_t vxlcmd_ttl;
union vxlan_sockaddr vxlcmd_sa;
char vxlcmd_ifname[IFNAMSIZ];
};
#ifdef _KERNEL
typedef void (*vxlan_event_handler_t)(void *, struct ifnet *, sa_family_t,
u_int);
EVENTHANDLER_DECLARE(vxlan_start, vxlan_event_handler_t);
EVENTHANDLER_DECLARE(vxlan_stop, vxlan_event_handler_t);
#endif
#endif /* _NET_IF_VXLAN_H_ */
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