FreeBSD/Linux Kernel Cross Reference
sys/net/if_vxlan.h
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 * $FreeBSD$
27 */
28
29 #ifndef _NET_IF_VXLAN_H_
30 #define _NET_IF_VXLAN_H_
31
32 #include <sys/types.h>
33 #include <sys/socket.h>
34 #include <net/ethernet.h>
35 #include <net/if.h>
36 #include <netinet/in.h>
37
38 struct vxlan_header {
39 uint32_t vxlh_flags;
40 uint32_t vxlh_vni;
41 };
42
43 #define VXLAN_HDR_FLAGS_VALID_VNI 0x08000000
44 #define VXLAN_HDR_VNI_SHIFT 8
45
46 #define VXLAN_VNI_MAX (1 << 24)
47 #define VXLAN_VNI_MASK (VXLAN_VNI_MAX - 1)
48
49 /*
50 * The port assigned by IANA is 4789, but some early implementations
51 * (like Linux) use 8472 instead. If not specified, we default to
52 * the IANA port.
53 */
54 #define VXLAN_PORT 4789
55 #define VXLAN_LEGACY_PORT 8472
56
57 union vxlan_sockaddr {
58 struct sockaddr sa;
59 struct sockaddr_in in4;
60 struct sockaddr_in6 in6;
61 };
62
63 struct ifvxlanparam {
64 uint64_t vxlp_with;
65
66 #define VXLAN_PARAM_WITH_VNI 0x0001
67 #define VXLAN_PARAM_WITH_LOCAL_ADDR4 0x0002
68 #define VXLAN_PARAM_WITH_LOCAL_ADDR6 0x0004
69 #define VXLAN_PARAM_WITH_REMOTE_ADDR4 0x0008
70 #define VXLAN_PARAM_WITH_REMOTE_ADDR6 0x0010
71 #define VXLAN_PARAM_WITH_LOCAL_PORT 0x0020
72 #define VXLAN_PARAM_WITH_REMOTE_PORT 0x0040
73 #define VXLAN_PARAM_WITH_PORT_RANGE 0x0080
74 #define VXLAN_PARAM_WITH_FTABLE_TIMEOUT 0x0100
75 #define VXLAN_PARAM_WITH_FTABLE_MAX 0x0200
76 #define VXLAN_PARAM_WITH_MULTICAST_IF 0x0400
77 #define VXLAN_PARAM_WITH_TTL 0x0800
78 #define VXLAN_PARAM_WITH_LEARN 0x1000
79
80 uint32_t vxlp_vni;
81 union vxlan_sockaddr vxlp_local_sa;
82 union vxlan_sockaddr vxlp_remote_sa;
83 uint16_t vxlp_local_port;
84 uint16_t vxlp_remote_port;
85 uint16_t vxlp_min_port;
86 uint16_t vxlp_max_port;
87 char vxlp_mc_ifname[IFNAMSIZ];
88 uint32_t vxlp_ftable_timeout;
89 uint32_t vxlp_ftable_max;
90 uint8_t vxlp_ttl;
91 uint8_t vxlp_learn;
92 };
93
94 #define VXLAN_SOCKADDR_IS_IPV4(_vxsin) ((_vxsin)->sa.sa_family == AF_INET)
95 #define VXLAN_SOCKADDR_IS_IPV6(_vxsin) ((_vxsin)->sa.sa_family == AF_INET6)
96 #define VXLAN_SOCKADDR_IS_IPV46(_vxsin) \
97 (VXLAN_SOCKADDR_IS_IPV4(_vxsin) || VXLAN_SOCKADDR_IS_IPV6(_vxsin))
98
99 #define VXLAN_CMD_GET_CONFIG 0
100 #define VXLAN_CMD_SET_VNI 1
101 #define VXLAN_CMD_SET_LOCAL_ADDR 2
102 #define VXLAN_CMD_SET_REMOTE_ADDR 4
103 #define VXLAN_CMD_SET_LOCAL_PORT 5
104 #define VXLAN_CMD_SET_REMOTE_PORT 6
105 #define VXLAN_CMD_SET_PORT_RANGE 7
106 #define VXLAN_CMD_SET_FTABLE_TIMEOUT 8
107 #define VXLAN_CMD_SET_FTABLE_MAX 9
108 #define VXLAN_CMD_SET_MULTICAST_IF 10
109 #define VXLAN_CMD_SET_TTL 11
110 #define VXLAN_CMD_SET_LEARN 12
111 #define VXLAN_CMD_FTABLE_ENTRY_ADD 13
112 #define VXLAN_CMD_FTABLE_ENTRY_REM 14
113 #define VXLAN_CMD_FLUSH 15
114
115 struct ifvxlancfg {
116 uint32_t vxlc_vni;
117 union vxlan_sockaddr vxlc_local_sa;
118 union vxlan_sockaddr vxlc_remote_sa;
119 uint32_t vxlc_mc_ifindex;
120 uint32_t vxlc_ftable_cnt;
121 uint32_t vxlc_ftable_max;
122 uint32_t vxlc_ftable_timeout;
123 uint16_t vxlc_port_min;
124 uint16_t vxlc_port_max;
125 uint8_t vxlc_learn;
126 uint8_t vxlc_ttl;
127 };
128
129 struct ifvxlancmd {
130 uint32_t vxlcmd_flags;
131 #define VXLAN_CMD_FLAG_FLUSH_ALL 0x0001
132 #define VXLAN_CMD_FLAG_LEARN 0x0002
133
134 uint32_t vxlcmd_vni;
135 uint32_t vxlcmd_ftable_timeout;
136 uint32_t vxlcmd_ftable_max;
137 uint16_t vxlcmd_port;
138 uint16_t vxlcmd_port_min;
139 uint16_t vxlcmd_port_max;
140 uint8_t vxlcmd_mac[ETHER_ADDR_LEN];
141 uint8_t vxlcmd_ttl;
142 union vxlan_sockaddr vxlcmd_sa;
143 char vxlcmd_ifname[IFNAMSIZ];
144 };
145
146 #ifdef _KERNEL
147 typedef void (*vxlan_event_handler_t)(void *, struct ifnet *, sa_family_t,
148 u_int);
149 EVENTHANDLER_DECLARE(vxlan_start, vxlan_event_handler_t);
150 EVENTHANDLER_DECLARE(vxlan_stop, vxlan_event_handler_t);
151 #endif
152
153 #endif /* _NET_IF_VXLAN_H_ */
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