120 lines
4.2 KiB
C
120 lines
4.2 KiB
C
/*-
|
|
* Copyright (c) 1996-2000
|
|
* University of Southern California/Information Sciences Institute.
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _NETINET_PIM_H_
|
|
#define _NETINET_PIM_H_
|
|
|
|
/*
|
|
* Protocol Independent Multicast (PIM) definitions.
|
|
* RFC 2362, June 1998.
|
|
*
|
|
* Written by Ahmed Helmy, USC/SGI, July 1996.
|
|
* Modified by George Edmond Eddy (Rusty), ISI, February 1998.
|
|
* Modified by Pavlin Radoslavov, USC/ISI, May 1998, October 2000.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
|
|
#ifndef _PIM_VT
|
|
#ifndef BYTE_ORDER
|
|
# error BYTE_ORDER is not defined!
|
|
#endif
|
|
#if (BYTE_ORDER != BIG_ENDIAN) && (BYTE_ORDER != LITTLE_ENDIAN)
|
|
# error BYTE_ORDER must be defined to either BIG_ENDIAN or LITTLE_ENDIAN
|
|
#endif
|
|
#endif /* ! _PIM_VT */
|
|
|
|
/*
|
|
* PIM packet header
|
|
*/
|
|
struct pim {
|
|
#ifdef _PIM_VT
|
|
uint8_t pim_vt; /* PIM version and message type */
|
|
#else /* ! _PIM_VT */
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
u_int pim_vers:4, /* PIM protocol version */
|
|
pim_type:4; /* PIM message type */
|
|
#endif
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
u_int pim_type:4, /* PIM message type */
|
|
pim_vers:4; /* PIM protocol version */
|
|
#endif
|
|
#endif /* ! _PIM_VT */
|
|
uint8_t pim_reserved; /* Reserved */
|
|
uint16_t pim_cksum; /* IP-style checksum */
|
|
};
|
|
/* KAME-related name backward compatibility */
|
|
#define pim_ver pim_vers
|
|
#define pim_rsv pim_reserved
|
|
|
|
#ifdef _PIM_VT
|
|
#define PIM_MAKE_VT(v, t) (0xff & (((v) << 4) | (0x0f & (t))))
|
|
#define PIM_VT_V(x) (((x) >> 4) & 0x0f)
|
|
#define PIM_VT_T(x) ((x) & 0x0f)
|
|
#endif /* _PIM_VT */
|
|
|
|
#define PIM_VERSION 2
|
|
#define PIM_MINLEN 8 /* PIM message min. length */
|
|
#define PIM_REG_MINLEN (PIM_MINLEN+20) /* PIM Register hdr + inner IPv4 hdr */
|
|
#define PIM6_REG_MINLEN (PIM_MINLEN+40) /* PIM Register hdr + inner IPv6 hdr */
|
|
|
|
/*
|
|
* PIM message types
|
|
*/
|
|
#define PIM_HELLO 0x0 /* PIM-SM and PIM-DM */
|
|
#define PIM_REGISTER 0x1 /* PIM-SM only */
|
|
#define PIM_REGISTER_STOP 0x2 /* PIM-SM only */
|
|
#define PIM_JOIN_PRUNE 0x3 /* PIM-SM and PIM-DM */
|
|
#define PIM_BOOTSTRAP 0x4 /* PIM-SM only */
|
|
#define PIM_ASSERT 0x5 /* PIM-SM and PIM-DM */
|
|
#define PIM_GRAFT 0x6 /* PIM-DM only */
|
|
#define PIM_GRAFT_ACK 0x7 /* PIM-DM only */
|
|
#define PIM_CAND_RP_ADV 0x8 /* PIM-SM only */
|
|
#define PIM_ALL_DF_ELECTION 0xa /* Bidir-PIM-SM only */
|
|
|
|
/*
|
|
* PIM-Register message flags
|
|
*/
|
|
#define PIM_BORDER_REGISTER 0x80000000U /* The Border bit (host-order) */
|
|
#define PIM_NULL_REGISTER 0x40000000U /* The Null-Register bit (host-order)*/
|
|
|
|
/*
|
|
* All-PIM-Routers IPv4 and IPv6 multicast addresses
|
|
*/
|
|
#define INADDR_ALLPIM_ROUTERS_GROUP (uint32_t)0xe000000dU /* 224.0.0.13 */
|
|
#define IN6ADDR_LINKLOCAL_ALLPIM_ROUTERS "ff02::d"
|
|
#define IN6ADDR_LINKLOCAL_ALLPIM_ROUTERS_INIT \
|
|
{{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0d }}}
|
|
|
|
#endif /* _NETINET_PIM_H_ */
|