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pim6.h revision 1.4.40.1
      1  1.4.40.1     yamt /*	$NetBSD: pim6.h,v 1.4.40.1 2006/06/21 15:11:09 yamt Exp $	*/
      2       1.4   itojun /*	$KAME: pim6.h,v 1.3 2000/03/25 07:23:58 sumikawa Exp $	*/
      3       1.3  thorpej 
      4       1.2   itojun /*
      5       1.2   itojun  * Copyright (C) 1998 WIDE Project.
      6       1.2   itojun  * All rights reserved.
      7       1.4   itojun  *
      8       1.2   itojun  * Redistribution and use in source and binary forms, with or without
      9       1.2   itojun  * modification, are permitted provided that the following conditions
     10       1.2   itojun  * are met:
     11       1.2   itojun  * 1. Redistributions of source code must retain the above copyright
     12       1.2   itojun  *    notice, this list of conditions and the following disclaimer.
     13       1.2   itojun  * 2. Redistributions in binary form must reproduce the above copyright
     14       1.2   itojun  *    notice, this list of conditions and the following disclaimer in the
     15       1.2   itojun  *    documentation and/or other materials provided with the distribution.
     16       1.2   itojun  * 3. Neither the name of the project nor the names of its contributors
     17       1.2   itojun  *    may be used to endorse or promote products derived from this software
     18       1.2   itojun  *    without specific prior written permission.
     19       1.4   itojun  *
     20       1.2   itojun  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     21       1.2   itojun  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     22       1.2   itojun  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     23       1.2   itojun  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     24       1.2   itojun  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     25       1.2   itojun  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     26       1.2   itojun  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     27       1.2   itojun  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     28       1.2   itojun  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     29       1.2   itojun  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     30       1.2   itojun  * SUCH DAMAGE.
     31       1.2   itojun  */
     32  1.4.40.1     yamt 
     33  1.4.40.1     yamt #ifndef _NETINET6_PIM6_H_
     34  1.4.40.1     yamt #define _NETINET6_PIM6_H_
     35  1.4.40.1     yamt 
     36       1.2   itojun /*
     37       1.2   itojun  * Protocol Independent Multicast (PIM) definitions
     38       1.2   itojun  *
     39       1.2   itojun  * Written by Ahmed Helmy, SGI, July 1996
     40       1.2   itojun  *
     41       1.2   itojun  * MULTICAST
     42       1.2   itojun  */
     43       1.2   itojun 
     44       1.2   itojun /*
     45       1.2   itojun  * PIM packet header
     46       1.2   itojun  */
     47       1.2   itojun #define PIM_VERSION	2
     48       1.2   itojun struct pim {
     49       1.2   itojun #if defined(BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN)
     50       1.2   itojun 	u_char	pim_type:4, /* the PIM message type, currently they are:
     51       1.2   itojun 			     * Hello, Register, Register-Stop, Join/Prune,
     52       1.2   itojun 			     * Bootstrap, Assert, Graft (PIM-DM only),
     53       1.2   itojun 			     * Graft-Ack (PIM-DM only), C-RP-Adv
     54       1.2   itojun 			     */
     55       1.2   itojun 		pim_ver:4;  /* PIM version number; 2 for PIMv2 */
     56       1.2   itojun #else
     57       1.2   itojun 	u_char	pim_ver:4,	/* PIM version */
     58       1.2   itojun 		pim_type:4;	/* PIM type    */
     59       1.2   itojun #endif
     60       1.2   itojun 	u_char  pim_rsv;	/* Reserved */
     61       1.2   itojun 	u_short	pim_cksum;	/* IP style check sum */
     62       1.2   itojun };
     63       1.2   itojun 
     64       1.2   itojun #define PIM_MINLEN	8		/* The header min. length is 8    */
     65       1.2   itojun #define PIM6_REG_MINLEN	(PIM_MINLEN+40)	/* Register message + inner IP6 header */
     66       1.2   itojun 
     67       1.4   itojun /*
     68       1.2   itojun  * Message types
     69       1.2   itojun  */
     70       1.2   itojun #define PIM_REGISTER	1	/* PIM Register type is 1 */
     71       1.2   itojun 
     72       1.2   itojun /* second bit in reg_head is the null bit */
     73       1.2   itojun #define PIM_NULL_REGISTER 0x40000000
     74  1.4.40.1     yamt 
     75  1.4.40.1     yamt #endif /* !_NETINET6_PIM6_H_ */
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