usr/src/lib/libvrrpadm/common/netinet/vrrp.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _VRRP_H
  28 #define _VRRP_H
  29
  30 #include <stdint.h>
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 typedef struct vrrp_pkt_s {
  37         uint8_t         vp_vers_type;
  38         uint8_t         vp_vrid;
  39         uint8_t         vp_prio;
  40         uint8_t         vp_ipnum;
  41         uint16_t        vp_rsvd_adver_int;
  42         uint16_t        vp_chksum;
  43         /* then follows <vp_ipnum> IPvX addresses */
  44         /* then follows NO authentification data */
  45 } vrrp_pkt_t;
  46
  47 #define IPPROTO_VRRP            112     /* IP protocol number */
  48 #define VRRP_AUTH_LEN           0       /* XXX length of a chunk of Auth Data */
  49
  50 #define VRRP_IP_TTL             255     /* IPv4 TTL, IPv6 hop limit */
  51 #define VRRP_VERSION            3       /* current version */
  52 #define VRRP_PKT_ADVERT         1       /* packet type */
  53 #define VRRP_VER_MASK           0xf0    /* version mask */
  54 #define VRRP_TYPE_MASK          0x0f    /* packet type mask */
  55
  56 #define VRRP_PRI_OWNER          255     /* priority of IP address owner */
  57 #define VRRP_PRI_MIN            1       /* minimum priority */
  58 #define VRRP_PRIO_ZERO          0       /* stop participating VRRP */
  59 #define VRRP_PRI_DEFAULT        VRRP_PRI_OWNER  /* default priority */
  60
  61 #define VRRP_VRID_NONE          0
  62 #define VRRP_VRID_MIN           1
  63 #define VRRP_VRID_MAX           255
  64
  65 #define CENTISEC2MSEC(centisec) ((centisec) * 10)
  66 #define MSEC2CENTISEC(msec)     ((msec) / 10)
  67
  68 /* Max advertisement interval, in msec */
  69 #define VRRP_MAX_ADVER_INT_MIN  CENTISEC2MSEC(1)
  70 #define VRRP_MAX_ADVER_INT_MAX  CENTISEC2MSEC(4095)     /* (2^12 -1) */
  71 #define VRRP_MAX_ADVER_INT_DFLT CENTISEC2MSEC(100)      /* 1 sec */
  72
  73 #ifdef __cplusplus
  74 }
  75 #endif
  76
  77 #endif  /* _VRRP_H */