master
1/*-
2 * Copyright (c) 2014, Bryan Venteicher <bryanv@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
10 * disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#ifndef _NET_IF_VXLAN_H_
28#define _NET_IF_VXLAN_H_
29
30#include <sys/types.h>
31#include <sys/socket.h>
32#include <net/ethernet.h>
33#include <net/if.h>
34#include <netinet/in.h>
35
36struct vxlan_header {
37 uint32_t vxlh_flags;
38 uint32_t vxlh_vni;
39};
40
41#define VXLAN_HDR_FLAGS_VALID_VNI 0x08000000
42#define VXLAN_HDR_VNI_SHIFT 8
43
44#define VXLAN_VNI_MAX (1 << 24)
45#define VXLAN_VNI_MASK (VXLAN_VNI_MAX - 1)
46
47/*
48 * The port assigned by IANA is 4789, but some early implementations
49 * (like Linux) use 8472 instead. If not specified, we default to
50 * the IANA port.
51 */
52#define VXLAN_PORT 4789
53#define VXLAN_LEGACY_PORT 8472
54
55union vxlan_sockaddr {
56 struct sockaddr sa;
57 struct sockaddr_in in4;
58 struct sockaddr_in6 in6;
59};
60
61struct ifvxlanparam {
62 uint64_t vxlp_with;
63
64#define VXLAN_PARAM_WITH_VNI 0x0001
65#define VXLAN_PARAM_WITH_LOCAL_ADDR4 0x0002
66#define VXLAN_PARAM_WITH_LOCAL_ADDR6 0x0004
67#define VXLAN_PARAM_WITH_REMOTE_ADDR4 0x0008
68#define VXLAN_PARAM_WITH_REMOTE_ADDR6 0x0010
69#define VXLAN_PARAM_WITH_LOCAL_PORT 0x0020
70#define VXLAN_PARAM_WITH_REMOTE_PORT 0x0040
71#define VXLAN_PARAM_WITH_PORT_RANGE 0x0080
72#define VXLAN_PARAM_WITH_FTABLE_TIMEOUT 0x0100
73#define VXLAN_PARAM_WITH_FTABLE_MAX 0x0200
74#define VXLAN_PARAM_WITH_MULTICAST_IF 0x0400
75#define VXLAN_PARAM_WITH_TTL 0x0800
76#define VXLAN_PARAM_WITH_LEARN 0x1000
77
78 uint32_t vxlp_vni;
79 union vxlan_sockaddr vxlp_local_sa;
80 union vxlan_sockaddr vxlp_remote_sa;
81 uint16_t vxlp_local_port;
82 uint16_t vxlp_remote_port;
83 uint16_t vxlp_min_port;
84 uint16_t vxlp_max_port;
85 char vxlp_mc_ifname[IFNAMSIZ];
86 uint32_t vxlp_ftable_timeout;
87 uint32_t vxlp_ftable_max;
88 uint8_t vxlp_ttl;
89 uint8_t vxlp_learn;
90};
91
92#define VXLAN_SOCKADDR_IS_IPV4(_vxsin) ((_vxsin)->sa.sa_family == AF_INET)
93#define VXLAN_SOCKADDR_IS_IPV6(_vxsin) ((_vxsin)->sa.sa_family == AF_INET6)
94#define VXLAN_SOCKADDR_IS_IPV46(_vxsin) \
95 (VXLAN_SOCKADDR_IS_IPV4(_vxsin) || VXLAN_SOCKADDR_IS_IPV6(_vxsin))
96
97#define VXLAN_CMD_GET_CONFIG 0
98#define VXLAN_CMD_SET_VNI 1
99#define VXLAN_CMD_SET_LOCAL_ADDR 2
100#define VXLAN_CMD_SET_REMOTE_ADDR 4
101#define VXLAN_CMD_SET_LOCAL_PORT 5
102#define VXLAN_CMD_SET_REMOTE_PORT 6
103#define VXLAN_CMD_SET_PORT_RANGE 7
104#define VXLAN_CMD_SET_FTABLE_TIMEOUT 8
105#define VXLAN_CMD_SET_FTABLE_MAX 9
106#define VXLAN_CMD_SET_MULTICAST_IF 10
107#define VXLAN_CMD_SET_TTL 11
108#define VXLAN_CMD_SET_LEARN 12
109#define VXLAN_CMD_FTABLE_ENTRY_ADD 13
110#define VXLAN_CMD_FTABLE_ENTRY_REM 14
111#define VXLAN_CMD_FLUSH 15
112
113struct ifvxlancfg {
114 uint32_t vxlc_vni;
115 union vxlan_sockaddr vxlc_local_sa;
116 union vxlan_sockaddr vxlc_remote_sa;
117 uint32_t vxlc_mc_ifindex;
118 uint32_t vxlc_ftable_cnt;
119 uint32_t vxlc_ftable_max;
120 uint32_t vxlc_ftable_timeout;
121 uint16_t vxlc_port_min;
122 uint16_t vxlc_port_max;
123 uint8_t vxlc_learn;
124 uint8_t vxlc_ttl;
125};
126
127struct ifvxlancmd {
128 uint32_t vxlcmd_flags;
129#define VXLAN_CMD_FLAG_FLUSH_ALL 0x0001
130#define VXLAN_CMD_FLAG_LEARN 0x0002
131
132 uint32_t vxlcmd_vni;
133 uint32_t vxlcmd_ftable_timeout;
134 uint32_t vxlcmd_ftable_max;
135 uint16_t vxlcmd_port;
136 uint16_t vxlcmd_port_min;
137 uint16_t vxlcmd_port_max;
138 uint8_t vxlcmd_mac[ETHER_ADDR_LEN];
139 uint8_t vxlcmd_ttl;
140 union vxlan_sockaddr vxlcmd_sa;
141 char vxlcmd_ifname[IFNAMSIZ];
142};
143
144#ifdef _KERNEL
145typedef void (*vxlan_event_handler_t)(void *, struct ifnet *, sa_family_t,
146 u_int);
147EVENTHANDLER_DECLARE(vxlan_start, vxlan_event_handler_t);
148EVENTHANDLER_DECLARE(vxlan_stop, vxlan_event_handler_t);
149#endif
150
151#endif /* _NET_IF_VXLAN_H_ */