0,0 → 1,73 |
/*!\file netinet6/pim6.h |
* |
*/ |
|
/* $FreeBSD: src/sys/netinet6/pim6.h,v 1.2 2000/07/04 16:35:10 itojun Exp $ */ |
/* $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 |