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 #endif /* _NET_IF_VXLAN_H_ */ 147