pim6.h revision 1.1.2.1
1 1.1.2.1 itojun /* 2 1.1.2.1 itojun * Copyright (C) 1998 WIDE Project. 3 1.1.2.1 itojun * All rights reserved. 4 1.1.2.1 itojun * 5 1.1.2.1 itojun * Redistribution and use in source and binary forms, with or without 6 1.1.2.1 itojun * modification, are permitted provided that the following conditions 7 1.1.2.1 itojun * are met: 8 1.1.2.1 itojun * 1. Redistributions of source code must retain the above copyright 9 1.1.2.1 itojun * notice, this list of conditions and the following disclaimer. 10 1.1.2.1 itojun * 2. Redistributions in binary form must reproduce the above copyright 11 1.1.2.1 itojun * notice, this list of conditions and the following disclaimer in the 12 1.1.2.1 itojun * documentation and/or other materials provided with the distribution. 13 1.1.2.1 itojun * 3. Neither the name of the project nor the names of its contributors 14 1.1.2.1 itojun * may be used to endorse or promote products derived from this software 15 1.1.2.1 itojun * without specific prior written permission. 16 1.1.2.1 itojun * 17 1.1.2.1 itojun * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 18 1.1.2.1 itojun * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 1.1.2.1 itojun * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 1.1.2.1 itojun * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 21 1.1.2.1 itojun * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 1.1.2.1 itojun * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 1.1.2.1 itojun * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 1.1.2.1 itojun * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 1.1.2.1 itojun * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 1.1.2.1 itojun * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 1.1.2.1 itojun * SUCH DAMAGE. 28 1.1.2.1 itojun */ 29 1.1.2.1 itojun /* 30 1.1.2.1 itojun * Protocol Independent Multicast (PIM) definitions 31 1.1.2.1 itojun * 32 1.1.2.1 itojun * Written by Ahmed Helmy, SGI, July 1996 33 1.1.2.1 itojun * 34 1.1.2.1 itojun * MULTICAST 35 1.1.2.1 itojun */ 36 1.1.2.1 itojun 37 1.1.2.1 itojun /* 38 1.1.2.1 itojun * PIM packet header 39 1.1.2.1 itojun */ 40 1.1.2.1 itojun #define PIM_VERSION 2 41 1.1.2.1 itojun struct pim { 42 1.1.2.1 itojun #if defined(BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN) 43 1.1.2.1 itojun u_char pim_type:4, /* the PIM message type, currently they are: 44 1.1.2.1 itojun * Hello, Register, Register-Stop, Join/Prune, 45 1.1.2.1 itojun * Bootstrap, Assert, Graft (PIM-DM only), 46 1.1.2.1 itojun * Graft-Ack (PIM-DM only), C-RP-Adv 47 1.1.2.1 itojun */ 48 1.1.2.1 itojun pim_ver:4; /* PIM version number; 2 for PIMv2 */ 49 1.1.2.1 itojun #else 50 1.1.2.1 itojun u_char pim_ver:4, /* PIM version */ 51 1.1.2.1 itojun pim_type:4; /* PIM type */ 52 1.1.2.1 itojun #endif 53 1.1.2.1 itojun u_char pim_rsv; /* Reserved */ 54 1.1.2.1 itojun u_short pim_cksum; /* IP style check sum */ 55 1.1.2.1 itojun }; 56 1.1.2.1 itojun 57 1.1.2.1 itojun #define PIM_MINLEN 8 /* The header min. length is 8 */ 58 1.1.2.1 itojun #define PIM6_REG_MINLEN (PIM_MINLEN+40) /* Register message + inner IP6 header */ 59 1.1.2.1 itojun 60 1.1.2.1 itojun /* 61 1.1.2.1 itojun * Message types 62 1.1.2.1 itojun */ 63 1.1.2.1 itojun #define PIM_REGISTER 1 /* PIM Register type is 1 */ 64 1.1.2.1 itojun 65 1.1.2.1 itojun /* second bit in reg_head is the null bit */ 66 1.1.2.1 itojun #define PIM_NULL_REGISTER 0x40000000 67
Indexes created Sun Oct 12 09:09:55 GMT 2025