pim6.h revision 1.2.2.3
1 1.2.2.3 thorpej /* $NetBSD: pim6.h,v 1.2.2.3 1999/08/02 22:36:07 thorpej Exp $ */ 2 1.2.2.3 thorpej 3 1.2.2.2 thorpej /* 4 1.2.2.2 thorpej * Copyright (C) 1998 WIDE Project. 5 1.2.2.2 thorpej * All rights reserved. 6 1.2.2.2 thorpej * 7 1.2.2.2 thorpej * Redistribution and use in source and binary forms, with or without 8 1.2.2.2 thorpej * modification, are permitted provided that the following conditions 9 1.2.2.2 thorpej * are met: 10 1.2.2.2 thorpej * 1. Redistributions of source code must retain the above copyright 11 1.2.2.2 thorpej * notice, this list of conditions and the following disclaimer. 12 1.2.2.2 thorpej * 2. Redistributions in binary form must reproduce the above copyright 13 1.2.2.2 thorpej * notice, this list of conditions and the following disclaimer in the 14 1.2.2.2 thorpej * documentation and/or other materials provided with the distribution. 15 1.2.2.2 thorpej * 3. Neither the name of the project nor the names of its contributors 16 1.2.2.2 thorpej * may be used to endorse or promote products derived from this software 17 1.2.2.2 thorpej * without specific prior written permission. 18 1.2.2.2 thorpej * 19 1.2.2.2 thorpej * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 1.2.2.2 thorpej * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 1.2.2.2 thorpej * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 1.2.2.2 thorpej * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 1.2.2.2 thorpej * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 1.2.2.2 thorpej * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 1.2.2.2 thorpej * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 1.2.2.2 thorpej * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 1.2.2.2 thorpej * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 1.2.2.2 thorpej * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 1.2.2.2 thorpej * SUCH DAMAGE. 30 1.2.2.2 thorpej */ 31 1.2.2.2 thorpej /* 32 1.2.2.2 thorpej * Protocol Independent Multicast (PIM) definitions 33 1.2.2.2 thorpej * 34 1.2.2.2 thorpej * Written by Ahmed Helmy, SGI, July 1996 35 1.2.2.2 thorpej * 36 1.2.2.2 thorpej * MULTICAST 37 1.2.2.2 thorpej */ 38 1.2.2.2 thorpej 39 1.2.2.2 thorpej /* 40 1.2.2.2 thorpej * PIM packet header 41 1.2.2.2 thorpej */ 42 1.2.2.2 thorpej #define PIM_VERSION 2 43 1.2.2.2 thorpej struct pim { 44 1.2.2.2 thorpej #if defined(BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN) 45 1.2.2.2 thorpej u_char pim_type:4, /* the PIM message type, currently they are: 46 1.2.2.2 thorpej * Hello, Register, Register-Stop, Join/Prune, 47 1.2.2.2 thorpej * Bootstrap, Assert, Graft (PIM-DM only), 48 1.2.2.2 thorpej * Graft-Ack (PIM-DM only), C-RP-Adv 49 1.2.2.2 thorpej */ 50 1.2.2.2 thorpej pim_ver:4; /* PIM version number; 2 for PIMv2 */ 51 1.2.2.2 thorpej #else 52 1.2.2.2 thorpej u_char pim_ver:4, /* PIM version */ 53 1.2.2.2 thorpej pim_type:4; /* PIM type */ 54 1.2.2.2 thorpej #endif 55 1.2.2.2 thorpej u_char pim_rsv; /* Reserved */ 56 1.2.2.2 thorpej u_short pim_cksum; /* IP style check sum */ 57 1.2.2.2 thorpej }; 58 1.2.2.2 thorpej 59 1.2.2.2 thorpej #define PIM_MINLEN 8 /* The header min. length is 8 */ 60 1.2.2.2 thorpej #define PIM6_REG_MINLEN (PIM_MINLEN+40) /* Register message + inner IP6 header */ 61 1.2.2.2 thorpej 62 1.2.2.2 thorpej /* 63 1.2.2.2 thorpej * Message types 64 1.2.2.2 thorpej */ 65 1.2.2.2 thorpej #define PIM_REGISTER 1 /* PIM Register type is 1 */ 66 1.2.2.2 thorpej 67 1.2.2.2 thorpej /* second bit in reg_head is the null bit */ 68 1.2.2.2 thorpej #define PIM_NULL_REGISTER 0x40000000 69
Indexes created Tue Oct 14 06:10:07 GMT 2025