icmp6.h

vxworks 6.x 的全部头文件

/* icmp6.h - ICMPv6 header file */

/*
 * Copyright (c) 2001-2005 Wind River Systems, Inc.
 *
 * The right to copy, distribute, modify or otherwise make use
 * of this software may be licensed only pursuant to the terms
 * of an applicable Wind River license agreement.
 */

/*	$KAME: icmp6.h,v 1.97 2005/04/01 07:31:01 suz Exp $	*/
/*	$KAME: icmp6.h,v 1.94 2004/07/09 14:13:59 suz Exp $	*/
/*	$FreeBSD: src/sys/netinet/icmp6.h,v 1.2.2.5 2002/06/29 18:31:11 ume Exp $	*/
/*	$KAME: icmp6.h,v 1.46 2001/04/27 15:09:48 itojun Exp $	*/

/*
 * Copyright (c) 2002 INRIA. All rights reserved.
 *
 * Implementation of Multicast Listener Discovery, Version 2.
 * Developed by Hitoshi Asaeda, INRIA, February 2002.
 *
 * 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 INRIA 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 INSTITUTE 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 INSTITUTE 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.
 */

/*
 * Copyright (C) 1995, 1996, 1997, and 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.
 */

/*
 * Copyright (c) 1982, 1986, 1993
 *	The Regents of the University of California.  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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
 *
 *	@(#)ip_icmp.h	8.1 (Berkeley) 6/10/93
 */

/*
modification history
--------------------
01l,19jun05,dlk  Modify prototype for icmp6_mtudisc_update() (SPR #110450).
01k,30may05,dlk  Avoid compiler warnings and improve efficiency in kernel
                 versions of ICMP6_FILTER_SETBLOCKALL/SETPASSALL.
01j,09may05,rp   merged from kame v1.97
01i,19apr05,rp   merged from comp_wn_ipv6_mld_interim-dev
01h,07feb05,vvv  _KERNEL cleanup
01g,14jan05,vvv  osdep.h cleanup
01f,20nov03,niq  Remove copyright_wrs.h file inclusion
01e,07aug03,nee  Merging from ACCORDION_BASE6_MERGE_BASELINE label in
                 Accordion to Base6
01d,29apr03,syy  Added #ifdef for __cplusplus
01c,01feb03,pas  merge from FreeBSD 4.7 - changed MLD6* to MLD*
01b,23oct02,ppp  removed __attribute__((__packed__)) from some of the
		 structures in order to fix alignment issues with some of
		 the architectures such as mips and sh
01a,06sep01,qli  1st round of porting and compiles
*/

#ifndef _NETINET_ICMP6_H_
#define _NETINET_ICMP6_H_

#ifdef __cplusplus
extern "C" {
#endif

#define ICMPV6_PLD_MAXLEN	1232	/* IPV6_MMTU - sizeof(struct ip6_hdr)
					   - sizeof(struct icmp6_hdr) */

struct icmp6_hdr {
	u_int8_t	icmp6_type;	/* type field */
	u_int8_t	icmp6_code;	/* code field */
	u_int16_t	icmp6_cksum;	/* checksum field */
	union {
		u_int32_t	icmp6_un_data32[1]; /* type-specific field */
		u_int16_t	icmp6_un_data16[2]; /* type-specific field */
		u_int8_t	icmp6_un_data8[4];  /* type-specific field */
	} icmp6_dataun;
};

#define icmp6_data32	icmp6_dataun.icmp6_un_data32
#define icmp6_data16	icmp6_dataun.icmp6_un_data16
#define icmp6_data8	icmp6_dataun.icmp6_un_data8
#define icmp6_pptr	icmp6_data32[0]		/* parameter prob */
#define icmp6_mtu	icmp6_data32[0]		/* packet too big */
#define icmp6_id	icmp6_data16[0]		/* echo request/reply */
#define icmp6_seq	icmp6_data16[1]		/* echo request/reply */
#define icmp6_maxdelay	icmp6_data16[0]		/* mcast group membership */

#define ICMP6_DST_UNREACH		1	/* dest unreachable, codes: */
#define ICMP6_PACKET_TOO_BIG		2	/* packet too big */
#define ICMP6_TIME_EXCEEDED		3	/* time exceeded, code: */
#define ICMP6_PARAM_PROB		4	/* ip6 header bad */

#define ICMP6_ECHO_REQUEST		128	/* echo service */
#define ICMP6_ECHO_REPLY		129	/* echo reply */
#define MLD_LISTENER_QUERY		130 	/* multicast listener query */
#define MLD_LISTENER_REPORT		131	/* multicast listener report */
#define MLD_LISTENER_DONE		132	/* multicast listener done */
#define MLD_LISTENER_REDUCTION MLD_LISTENER_DONE /* RFC3542 definition */

/* RFC2292 decls */
#define ICMP6_MEMBERSHIP_QUERY		130	/* group membership query */
#define ICMP6_MEMBERSHIP_REPORT		131	/* group membership report */
#define ICMP6_MEMBERSHIP_REDUCTION	132	/* group membership termination */

/* the followings are for backward compatibility to old KAME apps. */

#define MLD6_LISTENER_QUERY	MLD_LISTENER_QUERY
#define MLD6_LISTENER_REPORT	MLD_LISTENER_REPORT
#define MLD6_LISTENER_DONE	MLD_LISTENER_DONE

#define ND_ROUTER_SOLICIT		133	/* router solicitation */
#define ND_ROUTER_ADVERT		134	/* router advertisement */
#define ND_NEIGHBOR_SOLICIT		135	/* neighbor solicitation */
#define ND_NEIGHBOR_ADVERT		136	/* neighbor advertisement */
#define ND_REDIRECT			137	/* redirect */

#define ICMP6_ROUTER_RENUMBERING	138	/* router renumbering */

#define ICMP6_WRUREQUEST		139	/* who are you request */
#define ICMP6_WRUREPLY			140	/* who are you reply */
#define ICMP6_FQDN_QUERY		139	/* FQDN query */
#define ICMP6_FQDN_REPLY		140	/* FQDN reply */
#define ICMP6_NI_QUERY			139	/* node information request */
#define ICMP6_NI_REPLY			140	/* node information reply */

/* The belows are not yet defined in 2292bis. They will be renamed */
#define IND_SOLICIT			141	/* inverse neighbor solicitation */
#define IND_ADVERT			142	/* inverse neighbor advertisement */
#define MLDV2_LISTENER_REPORT		143	/* MLDv2 report */

/* Folloing numbers are defined in the mobile-ip draft. */
#define MIP6_HA_DISCOVERY_REQUEST	144	/* home agent address discovery request */
#define MIP6_HA_DISCOVERY_REPLY		145	/* home agent address discovery reply */
#define MIP6_PREFIX_SOLICIT		146	/* mobile prefix solicitation */
#define MIP6_PREFIX_ADVERT		147	/* mobile prefix advertisement */

/* The definitions below are experimental. TBA */
#define MLD_MTRACE_RESP			200	/* mtrace resp (to sender) */
#define MLD_MTRACE			201	/* mtrace messages */

/* backward compatibility for applications using old macro names */
#define MLD6_MTRACE_RESP	MLD_MTRACE_RESP
#define MLD6_MTRACE		MLD_MTRACE
#define MLD6V2_LISTENER_REPORT	MLDV2_LISTENER_REPORT

#define ICMP6_MAXTYPE			201

#define ICMP6_DST_UNREACH_NOROUTE	0	/* no route to destination */
#define ICMP6_DST_UNREACH_ADMIN	 	1	/* administratively prohibited */
#define ICMP6_DST_UNREACH_NOTNEIGHBOR	2	/* not a neighbor(obsolete) */
#define ICMP6_DST_UNREACH_BEYONDSCOPE	2	/* beyond scope of source address */
#define ICMP6_DST_UNREACH_ADDR		3	/* address unreachable */
#define ICMP6_DST_UNREACH_NOPORT	4	/* port unreachable */

#define ICMP6_TIME_EXCEED_TRANSIT 	0	/* ttl==0 in transit */
#define ICMP6_TIME_EXCEED_REASSEMBLY	1	/* ttl==0 in reass */

#define ICMP6_PARAMPROB_HEADER 	 	0	/* erroneous header field */
#define ICMP6_PARAMPROB_NEXTHEADER	1	/* unrecognized next header */
#define ICMP6_PARAMPROB_OPTION		2	/* unrecognized option */

#define ICMP6_INFOMSG_MASK		0x80	/* all informational messages */

#define ICMP6_NI_SUBJ_IPV6	0	/* Query Subject is an IPv6 address */
#define ICMP6_NI_SUBJ_FQDN	1	/* Query Subject is a Domain name */
#define ICMP6_NI_SUBJ_IPV4	2	/* Query Subject is an IPv4 address */

#define ICMP6_NI_SUCCESS	0	/* node information successful reply */
#define ICMP6_NI_REFUSED	1	/* node information request is refused */
#define ICMP6_NI_UNKNOWN	2	/* unknown Qtype */

#define ICMP6_ROUTER_RENUMBERING_COMMAND  0	/* rr command */
#define ICMP6_ROUTER_RENUMBERING_RESULT   1	/* rr result */
#define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET   255	/* rr seq num reset */

/* Used in kernel only */
#define ND_REDIRECT_ONLINK	0	/* redirect to an on-link node */
#define ND_REDIRECT_ROUTER	1	/* redirect to a better router */

/*
 * Multicast Listener Discovery
 */
struct mld_hdr {
	struct icmp6_hdr	mld_icmp6_hdr;
	struct in6_addr		mld_addr; /* multicast address */
};

/* definitions to provide backward compatibility to old KAME applications */

#define mld6_hdr	mld_hdr
#define mld6_type	mld_type
#define mld6_code	mld_code
#define mld6_cksum	mld_cksum
#define mld6_maxdelay	mld_maxdelay
#define mld6_reserved	mld_reserved
#define mld6_addr	mld_addr

/* shortcut macro definitions */
#define mld_type	mld_icmp6_hdr.icmp6_type
#define mld_code	mld_icmp6_hdr.icmp6_code
#define mld_cksum	mld_icmp6_hdr.icmp6_cksum
#define mld_maxdelay	mld_icmp6_hdr.icmp6_data16[0]
#define mld_reserved	mld_icmp6_hdr.icmp6_data16[1]

/*
 * Multicast Listener Discovery Version 2
 */
struct mldv2_hdr {
	struct icmp6_hdr	mld_icmp6_hdr;
	struct in6_addr		mld_addr;	/* multicast address */
	u_int8_t		mld_rtval;	/* Reserved, S Flag and QRV */
	u_int8_t	 	mld_qqi;	/* querier's query interval (QQI) */
	u_int16_t		mld_numsrc;	/* number of sources (0 for general */
						/* and group-specific queries) */
	struct in6_addr		mld_src[1];	/* source address list */	
};

#define MLD_MRC_EXP(x)	((ntohs(x) >> 12) & 0x0007)
#define MLD_MRC_MANT(x)	(ntohs(x) & 0x0fff)
#define MLD_QQIC_EXP(x)	(((x) >> 4) & 0x07)
#define MLD_QQIC_MANT(x)	((x) & 0x0f)
#define MLD_QRESV(x)	(((x) >> 4) & 0x0f)
#define MLD_SFLAG(x)	(((x) >> 3) & 0x01)
#define MLD_QRV(x)	((x) & 0x07)	/* querier's robustness variable   */

/*
 * MLDv2 Membership Report Message header.
 */
struct mld_report_hdr {
	struct icmp6_hdr	mld_icmp6_hdr;	/* version & type of MLD message */
};

/* shortcut macro definition */
#define mld_grpnum	mld_icmp6_hdr.icmp6_data16[1]

/*
 * MLDv2 Group Record header.
 */
struct mld_group_record_hdr {
	u_int8_t	record_type;	/* record types for membership report */
	u_int8_t	auxlen;		/* aux data length (must be zero)     */
	u_int16_t               numsrc;         /* number of sources        */
        struct in6_addr         group;          /* group address            */
        struct in6_addr         src[1];         /* source address list      */
};

#define MLD_V1_QUERY			0
#define MLD_V2_GENERAL_QUERY		1
#define MLD_V2_GROUP_QUERY		2
#define MLD_V2_GROUP_SOURCE_QUERY	3

#define MLD_MINLEN			24
#define MLD_V2_QUERY_MINLEN		28


/*
 * Group Record Types in the MLD Membership Report
 */
#define MODE_IS_INCLUDE                 1
#define MODE_IS_EXCLUDE                 2
#define CHANGE_TO_INCLUDE_MODE          3
#define CHANGE_TO_EXCLUDE_MODE          4
#define ALLOW_NEW_SOURCES               5
#define BLOCK_OLD_SOURCES               6