if_vxlan.h

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    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_ */

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FreeBSD/Linux Kernel Cross Reference sys/net/if_vxlan.h

FreeBSD/Linux Kernel Cross Reference
sys/net/if_vxlan.h