mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
70 lines
2.6 KiB
C
70 lines
2.6 KiB
C
/* $FreeBSD$ */
|
|
/* $KAME: pim6.h,v 1.3 2000/03/25 07:23:58 sumikawa Exp $ */
|
|
|
|
/*-
|
|
* Copyright (C) 1998 WIDE Project.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the project nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
/*
|
|
* Protocol Independent Multicast (PIM) definitions
|
|
*
|
|
* Written by Ahmed Helmy, SGI, July 1996
|
|
*
|
|
* MULTICAST
|
|
*/
|
|
|
|
/*
|
|
* PIM packet header
|
|
*/
|
|
#define PIM_VERSION 2
|
|
struct pim {
|
|
#if defined(BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN)
|
|
u_char pim_type:4, /* the PIM message type, currently they are:
|
|
* Hello, Register, Register-Stop, Join/Prune,
|
|
* Bootstrap, Assert, Graft (PIM-DM only),
|
|
* Graft-Ack (PIM-DM only), C-RP-Adv
|
|
*/
|
|
pim_ver:4; /* PIM version number; 2 for PIMv2 */
|
|
#else
|
|
u_char pim_ver:4, /* PIM version */
|
|
pim_type:4; /* PIM type */
|
|
#endif
|
|
u_char pim_rsv; /* Reserved */
|
|
u_short pim_cksum; /* IP style check sum */
|
|
};
|
|
|
|
#define PIM_MINLEN 8 /* The header min. length is 8 */
|
|
#define PIM6_REG_MINLEN (PIM_MINLEN+40) /* Register message + inner IP6 header */
|
|
|
|
/*
|
|
* Message types
|
|
*/
|
|
#define PIM_REGISTER 1 /* PIM Register type is 1 */
|
|
|
|
/* second bit in reg_head is the null bit */
|
|
#define PIM_NULL_REGISTER 0x40000000
|