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/* $NetBSD: icmp6.h,v 1.47 2013/07/01 12:43:15 christos Exp $ */
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/* $KAME: icmp6.h,v 1.84 2003/04/23 10:26:51 itojun Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ip_icmp.h 8.1 (Berkeley) 6/10/93
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*/
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#ifndef _NETINET_ICMP6_H_
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#define _NETINET_ICMP6_H_
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#define ICMPV6_PLD_MAXLEN 1232 /* IPV6_MMTU - sizeof(struct ip6_hdr) |
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- sizeof(struct icmp6_hdr) */
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struct icmp6_hdr {
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u_int8_t icmp6_type; /* type field */
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u_int8_t icmp6_code; /* code field */
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u_int16_t icmp6_cksum; /* checksum field */
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union {
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u_int32_t icmp6_un_data32[1]; /* type-specific field */ |
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u_int16_t icmp6_un_data16[2]; /* type-specific field */ |
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u_int8_t icmp6_un_data8[4]; /* type-specific field */ |
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} icmp6_dataun; |
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} __packed; |
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#define icmp6_data32 icmp6_dataun.icmp6_un_data32
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#define icmp6_data16 icmp6_dataun.icmp6_un_data16
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#define icmp6_data8 icmp6_dataun.icmp6_un_data8
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#define icmp6_pptr icmp6_data32[0] /* parameter prob */ |
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#define icmp6_mtu icmp6_data32[0] /* packet too big */ |
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#define icmp6_id icmp6_data16[0] /* echo request/reply */ |
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#define icmp6_seq icmp6_data16[1] /* echo request/reply */ |
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#define icmp6_maxdelay icmp6_data16[0] /* mcast group membership */ |
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#define ICMP6_DST_UNREACH 1 /* dest unreachable, codes: */ |
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#define ICMP6_PACKET_TOO_BIG 2 /* packet too big */ |
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#define ICMP6_TIME_EXCEEDED 3 /* time exceeded, code: */ |
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#define ICMP6_PARAM_PROB 4 /* ip6 header bad */ |
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#define ICMP6_ECHO_REQUEST 128 /* echo service */ |
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#define ICMP6_ECHO_REPLY 129 /* echo reply */ |
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#define MLD_LISTENER_QUERY 130 /* multicast listener query */ |
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#define MLD_LISTENER_REPORT 131 /* multicast listener report */ |
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#define MLD_LISTENER_DONE 132 /* multicast listener done */ |
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#define MLD_LISTENER_REDUCTION MLD_LISTENER_DONE /* RFC3542 definition */ |
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/* RFC2292 decls */
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#define ICMP6_MEMBERSHIP_QUERY 130 /* group membership query */ |
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#define ICMP6_MEMBERSHIP_REPORT 131 /* group membership report */ |
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#define ICMP6_MEMBERSHIP_REDUCTION 132 /* group membership termination */ |
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#ifndef _KERNEL
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/* the followings are for backward compatibility to old KAME apps. */
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#define MLD6_LISTENER_QUERY MLD_LISTENER_QUERY
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#define MLD6_LISTENER_REPORT MLD_LISTENER_REPORT
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#define MLD6_LISTENER_DONE MLD_LISTENER_DONE
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#endif
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#define ND_ROUTER_SOLICIT 133 /* router solicitation */ |
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#define ND_ROUTER_ADVERT 134 /* router advertisement */ |
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#define ND_NEIGHBOR_SOLICIT 135 /* neighbor solicitation */ |
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#define ND_NEIGHBOR_ADVERT 136 /* neighbor advertisement */ |
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#define ND_REDIRECT 137 /* redirect */ |
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#define ICMP6_ROUTER_RENUMBERING 138 /* router renumbering */ |
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#define ICMP6_WRUREQUEST 139 /* who are you request */ |
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#define ICMP6_WRUREPLY 140 /* who are you reply */ |
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#define ICMP6_FQDN_QUERY 139 /* FQDN query */ |
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#define ICMP6_FQDN_REPLY 140 /* FQDN reply */ |
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#define ICMP6_NI_QUERY 139 /* node information request */ |
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#define ICMP6_NI_REPLY 140 /* node information reply */ |
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#define MLDV2_LISTENER_REPORT 143 /* RFC3810 listener report */ |
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/* The definitions below are experimental. TBA */
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#define MLD_MTRACE_RESP 200 /* mtrace response(to sender) */ |
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#define MLD_MTRACE 201 /* mtrace messages */ |
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#ifndef _KERNEL
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/* the followings are for backward compatibility to old KAME apps. */
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#define MLD6_MTRACE_RESP MLD_MTRACE_RESP
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#define MLD6_MTRACE MLD_MTRACE
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#endif
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#define ICMP6_MAXTYPE 201 |
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#define ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */ |
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#define ICMP6_DST_UNREACH_ADMIN 1 /* administratively prohibited */ |
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#define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor(obsolete) */ |
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#define ICMP6_DST_UNREACH_BEYONDSCOPE 2 /* beyond scope of source address */ |
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#define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */ |
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#define ICMP6_DST_UNREACH_NOPORT 4 /* port unreachable */ |
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#define ICMP6_DST_UNREACH_POLICY 5 /* source address failed ingress/egress policy */ |
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#define ICMP6_DST_UNREACH_REJROUTE 6 /* reject route to destination */ |
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#define ICMP6_DST_UNREACH_SOURCERT 7 /* error in source routing header */ |
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#define ICMP6_TIME_EXCEED_TRANSIT 0 /* ttl==0 in transit */ |
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#define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* ttl==0 in reass */ |
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#define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */ |
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#define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */ |
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#define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */ |
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#define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */ |
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#define ICMP6_NI_SUBJ_IPV6 0 /* Query Subject is an IPv6 address */ |
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#define ICMP6_NI_SUBJ_FQDN 1 /* Query Subject is a Domain name */ |
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#define ICMP6_NI_SUBJ_IPV4 2 /* Query Subject is an IPv4 address */ |
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#define ICMP6_NI_SUCCESS 0 /* node information successful reply */ |
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#define ICMP6_NI_REFUSED 1 /* node information request is refused */ |
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#define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */ |
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#define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */ |
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#define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */ |
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#define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */ |
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/* Used in kernel only */
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#define ND_REDIRECT_ONLINK 0 /* redirect to an on-link node */ |
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#define ND_REDIRECT_ROUTER 1 /* redirect to a better router */ |
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/*
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* Multicast Listener Discovery
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*/
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struct mld_hdr {
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struct icmp6_hdr mld_icmp6_hdr;
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struct in6_addr mld_addr; /* multicast address */ |
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} __packed; |
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/* definitions to provide backward compatibility to old KAME applications */
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#ifndef _KERNEL
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#define mld6_hdr mld_hdr
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#define mld6_type mld_type
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#define mld6_code mld_code
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#define mld6_cksum mld_cksum
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#define mld6_maxdelay mld_maxdelay
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#define mld6_reserved mld_reserved
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#define mld6_addr mld_addr
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#endif
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/* shortcut macro definitions */
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#define mld_type mld_icmp6_hdr.icmp6_type
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#define mld_code mld_icmp6_hdr.icmp6_code
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#define mld_cksum mld_icmp6_hdr.icmp6_cksum
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#define mld_maxdelay mld_icmp6_hdr.icmp6_data16[0] |
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#define mld_reserved mld_icmp6_hdr.icmp6_data16[1] |
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#define MLD_MINLEN 24 |
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/*
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* Neighbor Discovery
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*/
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struct nd_router_solicit { /* router solicitation */ |
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struct icmp6_hdr nd_rs_hdr;
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/* could be followed by options */
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} __packed; |
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#define nd_rs_type nd_rs_hdr.icmp6_type
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#define nd_rs_code nd_rs_hdr.icmp6_code
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#define nd_rs_cksum nd_rs_hdr.icmp6_cksum
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#define nd_rs_reserved nd_rs_hdr.icmp6_data32[0] |
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struct nd_router_advert { /* router advertisement */ |
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struct icmp6_hdr nd_ra_hdr;
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u_int32_t nd_ra_reachable; /* reachable time */
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u_int32_t nd_ra_retransmit; /* retransmit timer */
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/* could be followed by options */
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} __packed; |
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#define nd_ra_type nd_ra_hdr.icmp6_type
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#define nd_ra_code nd_ra_hdr.icmp6_code
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#define nd_ra_cksum nd_ra_hdr.icmp6_cksum
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#define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0] |
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#define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1] |
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#define ND_RA_FLAG_MANAGED 0x80 |
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#define ND_RA_FLAG_OTHER 0x40 |
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#define ND_RA_FLAG_HOME_AGENT 0x20 |
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/*
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* Router preference values based on RFC4191.
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*/
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#define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */ |
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#define ND_RA_FLAG_RTPREF_HIGH 0x08 /* 00001000 */ |
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#define ND_RA_FLAG_RTPREF_MEDIUM 0x00 /* 00000000 */ |
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#define ND_RA_FLAG_RTPREF_LOW 0x18 /* 00011000 */ |
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#define ND_RA_FLAG_RTPREF_RSV 0x10 /* 00010000 */ |
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#define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1] |
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struct nd_neighbor_solicit { /* neighbor solicitation */ |
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struct icmp6_hdr nd_ns_hdr;
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struct in6_addr nd_ns_target; /*target address */ |
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/* could be followed by options */
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} __packed; |
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#define nd_ns_type nd_ns_hdr.icmp6_type
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#define nd_ns_code nd_ns_hdr.icmp6_code
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#define nd_ns_cksum nd_ns_hdr.icmp6_cksum
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#define nd_ns_reserved nd_ns_hdr.icmp6_data32[0] |
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struct nd_neighbor_advert { /* neighbor advertisement */ |
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struct icmp6_hdr nd_na_hdr;
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struct in6_addr nd_na_target; /* target address */ |
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/* could be followed by options */
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} __packed; |
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#define nd_na_type nd_na_hdr.icmp6_type
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#define nd_na_code nd_na_hdr.icmp6_code
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#define nd_na_cksum nd_na_hdr.icmp6_cksum
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#define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0] |
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#if BYTE_ORDER == BIG_ENDIAN
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#define ND_NA_FLAG_ROUTER 0x80000000 |
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#define ND_NA_FLAG_SOLICITED 0x40000000 |
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#define ND_NA_FLAG_OVERRIDE 0x20000000 |
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#else
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#if BYTE_ORDER == LITTLE_ENDIAN
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#define ND_NA_FLAG_ROUTER 0x80 |
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#define ND_NA_FLAG_SOLICITED 0x40 |
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#define ND_NA_FLAG_OVERRIDE 0x20 |
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#endif
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#endif
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struct nd_redirect { /* redirect */ |
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struct icmp6_hdr nd_rd_hdr;
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struct in6_addr nd_rd_target; /* target address */ |
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struct in6_addr nd_rd_dst; /* destination address */ |
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/* could be followed by options */
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} __packed; |
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#define nd_rd_type nd_rd_hdr.icmp6_type
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#define nd_rd_code nd_rd_hdr.icmp6_code
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#define nd_rd_cksum nd_rd_hdr.icmp6_cksum
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#define nd_rd_reserved nd_rd_hdr.icmp6_data32[0] |
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struct nd_opt_hdr { /* Neighbor discovery option header */ |
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u_int8_t nd_opt_type; |
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u_int8_t nd_opt_len; |
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/* followed by option specific data*/
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} __packed; |
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#define ND_OPT_SOURCE_LINKADDR 1 |
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#define ND_OPT_TARGET_LINKADDR 2 |
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#define ND_OPT_PREFIX_INFORMATION 3 |
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#define ND_OPT_REDIRECTED_HEADER 4 |
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#define ND_OPT_MTU 5 |
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#define ND_OPT_ADVINTERVAL 7 |
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#define ND_OPT_HOMEAGENT_INFO 8 |
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#define ND_OPT_SOURCE_ADDRLIST 9 |
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#define ND_OPT_TARGET_ADDRLIST 10 |
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#define ND_OPT_MAP 23 /* RFC 5380 */ |
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#define ND_OPT_ROUTE_INFO 24 /* RFC 4191 */ |
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#define ND_OPT_RDNSS 25 /* RFC 6016 */ |
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#define ND_OPT_DNSSL 31 /* RFC 6016 */ |
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struct nd_opt_route_info { /* route info */ |
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u_int8_t nd_opt_rti_type; |
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u_int8_t nd_opt_rti_len; |
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u_int8_t nd_opt_rti_prefixlen; |
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u_int8_t nd_opt_rti_flags; |
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u_int32_t nd_opt_rti_lifetime; |
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/* prefix follows */
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}; |
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struct nd_opt_prefix_info { /* prefix information */ |
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u_int8_t nd_opt_pi_type; |
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u_int8_t nd_opt_pi_len; |
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u_int8_t nd_opt_pi_prefix_len; |
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u_int8_t nd_opt_pi_flags_reserved; |
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u_int32_t nd_opt_pi_valid_time; |
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u_int32_t nd_opt_pi_preferred_time; |
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u_int32_t nd_opt_pi_reserved2; |
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struct in6_addr nd_opt_pi_prefix;
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} __packed; |
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#define ND_OPT_PI_FLAG_ONLINK 0x80 |
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#define ND_OPT_PI_FLAG_AUTO 0x40 |
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struct nd_opt_rd_hdr { /* redirected header */ |
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u_int8_t nd_opt_rh_type; |
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u_int8_t nd_opt_rh_len; |
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u_int16_t nd_opt_rh_reserved1; |
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u_int32_t nd_opt_rh_reserved2; |
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/* followed by IP header and data */
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} __packed; |
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struct nd_opt_mtu { /* MTU option */ |
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u_int8_t nd_opt_mtu_type; |
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u_int8_t nd_opt_mtu_len; |
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u_int16_t nd_opt_mtu_reserved; |
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u_int32_t nd_opt_mtu_mtu; |
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} __packed; |
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struct nd_opt_rdnss { /* RDNSS option RFC 6106 */ |
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u_int8_t nd_opt_rdnss_type; |
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u_int8_t nd_opt_rdnss_len; |
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u_int16_t nd_opt_rdnss_reserved; |
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u_int32_t nd_opt_rdnss_lifetime; |
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/* followed by list of IP prefixes */
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} __packed; |
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struct nd_opt_dnssl { /* DNSSL option RFC 6106 */ |
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u_int8_t nd_opt_dnssl_type; |
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u_int8_t nd_opt_dnssl_len; |
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u_int16_t nd_opt_dnssl_reserved; |
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u_int32_t nd_opt_dnssl_lifetime; |
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/* followed by list of IP prefixes */
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} __packed; |
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/*
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* icmp6 namelookup
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*/
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struct icmp6_namelookup {
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struct icmp6_hdr icmp6_nl_hdr;
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u_int8_t icmp6_nl_nonce[8];
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int32_t icmp6_nl_ttl; |
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#if 0
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u_int8_t icmp6_nl_len;
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u_int8_t icmp6_nl_name[3];
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#endif
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/* could be followed by options */
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} __packed; |
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/*
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* icmp6 node information
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*/
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struct icmp6_nodeinfo {
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struct icmp6_hdr icmp6_ni_hdr;
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u_int8_t icmp6_ni_nonce[8];
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/* could be followed by reply data */
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} __packed; |
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#define ni_type icmp6_ni_hdr.icmp6_type
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#define ni_code icmp6_ni_hdr.icmp6_code
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#define ni_cksum icmp6_ni_hdr.icmp6_cksum
|
| 394 |
#define ni_qtype icmp6_ni_hdr.icmp6_data16[0] |
| 395 |
#define ni_flags icmp6_ni_hdr.icmp6_data16[1] |
| 396 |
|
| 397 |
#define NI_QTYPE_NOOP 0 /* NOOP */ |
| 398 |
#define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */ |
| 399 |
#define NI_QTYPE_FQDN 2 /* FQDN (draft 04) */ |
| 400 |
#define NI_QTYPE_DNSNAME 2 /* DNS Name */ |
| 401 |
#define NI_QTYPE_NODEADDR 3 /* Node Addresses */ |
| 402 |
#define NI_QTYPE_IPV4ADDR 4 /* IPv4 Addresses */ |
| 403 |
|
| 404 |
#if BYTE_ORDER == BIG_ENDIAN
|
| 405 |
#define NI_SUPTYPE_FLAG_COMPRESS 0x1 |
| 406 |
#define NI_FQDN_FLAG_VALIDTTL 0x1 |
| 407 |
#elif BYTE_ORDER == LITTLE_ENDIAN
|
| 408 |
#define NI_SUPTYPE_FLAG_COMPRESS 0x0100 |
| 409 |
#define NI_FQDN_FLAG_VALIDTTL 0x0100 |
| 410 |
#endif
|
| 411 |
|
| 412 |
#ifdef NAME_LOOKUPS_04
|
| 413 |
#if BYTE_ORDER == BIG_ENDIAN
|
| 414 |
#define NI_NODEADDR_FLAG_LINKLOCAL 0x1 |
| 415 |
#define NI_NODEADDR_FLAG_SITELOCAL 0x2 |
| 416 |
#define NI_NODEADDR_FLAG_GLOBAL 0x4 |
| 417 |
#define NI_NODEADDR_FLAG_ALL 0x8 |
| 418 |
#define NI_NODEADDR_FLAG_TRUNCATE 0x10 |
| 419 |
#define NI_NODEADDR_FLAG_ANYCAST 0x20 /* just experimental. not in spec */ |
| 420 |
#elif BYTE_ORDER == LITTLE_ENDIAN
|
| 421 |
#define NI_NODEADDR_FLAG_LINKLOCAL 0x0100 |
| 422 |
#define NI_NODEADDR_FLAG_SITELOCAL 0x0200 |
| 423 |
#define NI_NODEADDR_FLAG_GLOBAL 0x0400 |
| 424 |
#define NI_NODEADDR_FLAG_ALL 0x0800 |
| 425 |
#define NI_NODEADDR_FLAG_TRUNCATE 0x1000 |
| 426 |
#define NI_NODEADDR_FLAG_ANYCAST 0x2000 /* just experimental. not in spec */ |
| 427 |
#endif
|
| 428 |
#else /* draft-ietf-ipngwg-icmp-name-lookups-05 (and later?) */ |
| 429 |
#if BYTE_ORDER == BIG_ENDIAN
|
| 430 |
#define NI_NODEADDR_FLAG_TRUNCATE 0x1 |
| 431 |
#define NI_NODEADDR_FLAG_ALL 0x2 |
| 432 |
#define NI_NODEADDR_FLAG_COMPAT 0x4 |
| 433 |
#define NI_NODEADDR_FLAG_LINKLOCAL 0x8 |
| 434 |
#define NI_NODEADDR_FLAG_SITELOCAL 0x10 |
| 435 |
#define NI_NODEADDR_FLAG_GLOBAL 0x20 |
| 436 |
#define NI_NODEADDR_FLAG_ANYCAST 0x40 /* just experimental. not in spec */ |
| 437 |
#elif BYTE_ORDER == LITTLE_ENDIAN
|
| 438 |
#define NI_NODEADDR_FLAG_TRUNCATE 0x0100 |
| 439 |
#define NI_NODEADDR_FLAG_ALL 0x0200 |
| 440 |
#define NI_NODEADDR_FLAG_COMPAT 0x0400 |
| 441 |
#define NI_NODEADDR_FLAG_LINKLOCAL 0x0800 |
| 442 |
#define NI_NODEADDR_FLAG_SITELOCAL 0x1000 |
| 443 |
#define NI_NODEADDR_FLAG_GLOBAL 0x2000 |
| 444 |
#define NI_NODEADDR_FLAG_ANYCAST 0x4000 /* just experimental. not in spec */ |
| 445 |
#endif
|
| 446 |
#endif
|
| 447 |
|
| 448 |
struct ni_reply_fqdn {
|
| 449 |
u_int32_t ni_fqdn_ttl; /* TTL */
|
| 450 |
u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */
|
| 451 |
u_int8_t ni_fqdn_name[3]; /* XXX: alignment */ |
| 452 |
} __packed; |
| 453 |
|
| 454 |
/*
|
| 455 |
* Router Renumbering. as router-renum-08.txt
|
| 456 |
*/
|
| 457 |
struct icmp6_router_renum { /* router renumbering header */ |
| 458 |
struct icmp6_hdr rr_hdr;
|
| 459 |
u_int8_t rr_segnum; |
| 460 |
u_int8_t rr_flags; |
| 461 |
u_int16_t rr_maxdelay; |
| 462 |
u_int32_t rr_reserved; |
| 463 |
} __packed; |
| 464 |
|
| 465 |
#define ICMP6_RR_FLAGS_TEST 0x80 |
| 466 |
#define ICMP6_RR_FLAGS_REQRESULT 0x40 |
| 467 |
#define ICMP6_RR_FLAGS_FORCEAPPLY 0x20 |
| 468 |
#define ICMP6_RR_FLAGS_SPECSITE 0x10 |
| 469 |
#define ICMP6_RR_FLAGS_PREVDONE 0x08 |
| 470 |
|
| 471 |
#define rr_type rr_hdr.icmp6_type
|
| 472 |
#define rr_code rr_hdr.icmp6_code
|
| 473 |
#define rr_cksum rr_hdr.icmp6_cksum
|
| 474 |
#define rr_seqnum rr_hdr.icmp6_data32[0] |
| 475 |
|
| 476 |
struct rr_pco_match { /* match prefix part */ |
| 477 |
u_int8_t rpm_code; |
| 478 |
u_int8_t rpm_len; |
| 479 |
u_int8_t rpm_ordinal; |
| 480 |
u_int8_t rpm_matchlen; |
| 481 |
u_int8_t rpm_minlen; |
| 482 |
u_int8_t rpm_maxlen; |
| 483 |
u_int16_t rpm_reserved; |
| 484 |
struct in6_addr rpm_prefix;
|
| 485 |
} __packed; |
| 486 |
|
| 487 |
#define RPM_PCO_ADD 1 |
| 488 |
#define RPM_PCO_CHANGE 2 |
| 489 |
#define RPM_PCO_SETGLOBAL 3 |
| 490 |
#define RPM_PCO_MAX 4 |
| 491 |
|
| 492 |
struct rr_pco_use { /* use prefix part */ |
| 493 |
u_int8_t rpu_uselen; |
| 494 |
u_int8_t rpu_keeplen; |
| 495 |
u_int8_t rpu_ramask; |
| 496 |
u_int8_t rpu_raflags; |
| 497 |
u_int32_t rpu_vltime; |
| 498 |
u_int32_t rpu_pltime; |
| 499 |
u_int32_t rpu_flags; |
| 500 |
struct in6_addr rpu_prefix;
|
| 501 |
} __packed; |
| 502 |
#define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK 0x80 |
| 503 |
#define ICMP6_RR_PCOUSE_RAFLAGS_AUTO 0x40 |
| 504 |
|
| 505 |
#if BYTE_ORDER == BIG_ENDIAN
|
| 506 |
#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000 |
| 507 |
#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000 |
| 508 |
#elif BYTE_ORDER == LITTLE_ENDIAN
|
| 509 |
#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80 |
| 510 |
#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40 |
| 511 |
#endif
|
| 512 |
|
| 513 |
struct rr_result { /* router renumbering result message */ |
| 514 |
u_int16_t rrr_flags; |
| 515 |
u_int8_t rrr_ordinal; |
| 516 |
u_int8_t rrr_matchedlen; |
| 517 |
u_int32_t rrr_ifid; |
| 518 |
struct in6_addr rrr_prefix;
|
| 519 |
} __packed; |
| 520 |
#if BYTE_ORDER == BIG_ENDIAN
|
| 521 |
#define ICMP6_RR_RESULT_FLAGS_OOB 0x0002 |
| 522 |
#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001 |
| 523 |
#elif BYTE_ORDER == LITTLE_ENDIAN
|
| 524 |
#define ICMP6_RR_RESULT_FLAGS_OOB 0x0200 |
| 525 |
#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0100 |
| 526 |
#endif
|
| 527 |
|
| 528 |
/*
|
| 529 |
* icmp6 filter structures.
|
| 530 |
*/
|
| 531 |
|
| 532 |
struct icmp6_filter {
|
| 533 |
u_int32_t icmp6_filt[8];
|
| 534 |
}; |
| 535 |
|
| 536 |
#define ICMP6_FILTER_SETPASSALL(filterp) \
|
| 537 |
(void)memset(filterp, 0xff, sizeof(struct icmp6_filter)) |
| 538 |
#define ICMP6_FILTER_SETBLOCKALL(filterp) \
|
| 539 |
(void)memset(filterp, 0x00, sizeof(struct icmp6_filter)) |
| 540 |
#define ICMP6_FILTER_SETPASS(type, filterp) \
|
| 541 |
(((filterp)->icmp6_filt[(type) >> 5]) |= (1 << ((type) & 31))) |
| 542 |
#define ICMP6_FILTER_SETBLOCK(type, filterp) \
|
| 543 |
(((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31))) |
| 544 |
#define ICMP6_FILTER_WILLPASS(type, filterp) \
|
| 545 |
((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0) |
| 546 |
#define ICMP6_FILTER_WILLBLOCK(type, filterp) \
|
| 547 |
((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0) |
| 548 |
|
| 549 |
/*
|
| 550 |
* Variables related to this implementation
|
| 551 |
* of the internet control message protocol version 6.
|
| 552 |
*/
|
| 553 |
|
| 554 |
/*
|
| 555 |
* IPv6 ICMP statistics.
|
| 556 |
* Each counter is an unsigned 64-bit value.
|
| 557 |
*/
|
| 558 |
#define ICMP6_STAT_ERROR 0 /* # of calls to icmp6_error */ |
| 559 |
#define ICMP6_STAT_CANTERROR 1 /* no error (old was icmp) */ |
| 560 |
#define ICMP6_STAT_TOOFREQ 2 /* no error (rate limitation) */ |
| 561 |
#define ICMP6_STAT_OUTHIST 3 /* # of output messages */ |
| 562 |
/* space for 256 counters */
|
| 563 |
#define ICMP6_STAT_BADCODE 259 /* icmp6_code out of range */ |
| 564 |
#define ICMP6_STAT_TOOSHORT 260 /* packet < sizeof(struct icmp6_hdr) */ |
| 565 |
#define ICMP6_STAT_CHECKSUM 261 /* bad checksum */ |
| 566 |
#define ICMP6_STAT_BADLEN 262 /* calculated bound mismatch */ |
| 567 |
/*
|
| 568 |
* number of responses; this member is inherited from the netinet code,
|
| 569 |
* but for netinet6 code, it is already available in outhist[].
|
| 570 |
*/
|
| 571 |
#define ICMP6_STAT_REFLECT 263 |
| 572 |
#define ICMP6_STAT_INHIST 264 /* # of input messages */ |
| 573 |
/* space for 256 counters */
|
| 574 |
#define ICMP6_STAT_ND_TOOMANYOPT 520 /* too many ND options */ |
| 575 |
#define ICMP6_STAT_OUTERRHIST 521 |
| 576 |
/* space for 13 counters */
|
| 577 |
#define ICMP6_STAT_PMTUCHG 534 /* path MTU changes */ |
| 578 |
#define ICMP6_STAT_ND_BADOPT 535 /* bad ND options */ |
| 579 |
#define ICMP6_STAT_BADNS 536 /* bad neighbor solicititation */ |
| 580 |
#define ICMP6_STAT_BADNA 537 /* bad neighbor advertisement */ |
| 581 |
#define ICMP6_STAT_BADRS 538 /* bad router solicitiation */ |
| 582 |
#define ICMP6_STAT_BADRA 539 /* bad router advertisement */ |
| 583 |
#define ICMP6_STAT_BADREDIRECT 540 /* bad redirect message */ |
| 584 |
#define ICMP6_STAT_DROPPED_RAROUTE 541 /* discarded routes from router advertisement */ |
| 585 |
|
| 586 |
#define ICMP6_NSTATS 542 |
| 587 |
|
| 588 |
#define ICMP6_ERRSTAT_DST_UNREACH_NOROUTE 0 |
| 589 |
#define ICMP6_ERRSTAT_DST_UNREACH_ADMIN 1 |
| 590 |
#define ICMP6_ERRSTAT_DST_UNREACH_BEYONDSCOPE 2 |
| 591 |
#define ICMP6_ERRSTAT_DST_UNREACH_ADDR 3 |
| 592 |
#define ICMP6_ERRSTAT_DST_UNREACH_NOPORT 4 |
| 593 |
#define ICMP6_ERRSTAT_PACKET_TOO_BIG 5 |
| 594 |
#define ICMP6_ERRSTAT_TIME_EXCEED_TRANSIT 6 |
| 595 |
#define ICMP6_ERRSTAT_TIME_EXCEED_REASSEMBLY 7 |
| 596 |
#define ICMP6_ERRSTAT_PARAMPROB_HEADER 8 |
| 597 |
#define ICMP6_ERRSTAT_PARAMPROB_NEXTHEADER 9 |
| 598 |
#define ICMP6_ERRSTAT_PARAMPROB_OPTION 10 |
| 599 |
#define ICMP6_ERRSTAT_REDIRECT 11 |
| 600 |
#define ICMP6_ERRSTAT_UNKNOWN 12 |
| 601 |
|
| 602 |
/*
|
| 603 |
* Names for ICMP sysctl objects
|
| 604 |
*/
|
| 605 |
#define ICMPV6CTL_STATS 1 |
| 606 |
#define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */ |
| 607 |
#define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */ |
| 608 |
#if 0 /*obsoleted*/
|
| 609 |
#define ICMPV6CTL_ERRRATELIMIT 5 /* ICMPv6 error rate limitation */
|
| 610 |
#endif
|
| 611 |
#define ICMPV6CTL_ND6_PRUNE 6 |
| 612 |
#define ICMPV6CTL_ND6_DELAY 8 |
| 613 |
#define ICMPV6CTL_ND6_UMAXTRIES 9 |
| 614 |
#define ICMPV6CTL_ND6_MMAXTRIES 10 |
| 615 |
#define ICMPV6CTL_ND6_USELOOPBACK 11 |
| 616 |
/*#define ICMPV6CTL_ND6_PROXYALL 12 obsoleted, do not reuse here */
|
| 617 |
#define ICMPV6CTL_NODEINFO 13 |
| 618 |
#define ICMPV6CTL_ERRPPSLIMIT 14 /* ICMPv6 error pps limitation */ |
| 619 |
#define ICMPV6CTL_ND6_MAXNUDHINT 15 |
| 620 |
#define ICMPV6CTL_MTUDISC_HIWAT 16 |
| 621 |
#define ICMPV6CTL_MTUDISC_LOWAT 17 |
| 622 |
#define ICMPV6CTL_ND6_DEBUG 18 |
| 623 |
#define ICMPV6CTL_ND6_DRLIST 19 |
| 624 |
#define ICMPV6CTL_ND6_PRLIST 20 |
| 625 |
#define ICMPV6CTL_ND6_MAXQLEN 24 |
| 626 |
#define ICMPV6CTL_MAXID 25 |
| 627 |
|
| 628 |
#define ICMPV6CTL_NAMES { \
|
| 629 |
{ 0, 0 }, \
|
| 630 |
{ 0, 0 }, \
|
| 631 |
{ "rediraccept", CTLTYPE_INT }, \
|
| 632 |
{ "redirtimeout", CTLTYPE_INT }, \
|
| 633 |
{ 0, 0 }, \
|
| 634 |
{ 0, 0 }, \
|
| 635 |
{ "nd6_prune", CTLTYPE_INT }, \
|
| 636 |
{ 0, 0 }, \
|
| 637 |
{ "nd6_delay", CTLTYPE_INT }, \
|
| 638 |
{ "nd6_umaxtries", CTLTYPE_INT }, \
|
| 639 |
{ "nd6_mmaxtries", CTLTYPE_INT }, \
|
| 640 |
{ "nd6_useloopback", CTLTYPE_INT }, \
|
| 641 |
{ 0, 0 }, \
|
| 642 |
{ "nodeinfo", CTLTYPE_INT }, \
|
| 643 |
{ "errppslimit", CTLTYPE_INT }, \
|
| 644 |
{ "nd6_maxnudhint", CTLTYPE_INT }, \
|
| 645 |
{ "mtudisc_hiwat", CTLTYPE_INT }, \
|
| 646 |
{ "mtudisc_lowat", CTLTYPE_INT }, \
|
| 647 |
{ "nd6_debug", CTLTYPE_INT }, \
|
| 648 |
{ 0, 0 }, \
|
| 649 |
{ 0, 0 }, \
|
| 650 |
{ 0, 0 }, \
|
| 651 |
{ 0, 0 }, \
|
| 652 |
{ 0, 0 }, \
|
| 653 |
{ "nd6_maxqueuelen", CTLTYPE_INT }, \
|
| 654 |
} |
| 655 |
|
| 656 |
#ifdef _KERNEL
|
| 657 |
struct rtentry;
|
| 658 |
struct rttimer;
|
| 659 |
struct in6_multi;
|
| 660 |
|
| 661 |
void icmp6_init(void); |
| 662 |
void icmp6_paramerror(struct mbuf *, int); |
| 663 |
void icmp6_error(struct mbuf *, int, int, int); |
| 664 |
void icmp6_error2(struct mbuf *, int, int, int, struct ifnet *); |
| 665 |
int icmp6_input(struct mbuf **, int *, int); |
| 666 |
void icmp6_fasttimo(void); |
| 667 |
void icmp6_reflect(struct mbuf *, size_t); |
| 668 |
void icmp6_prepare(struct mbuf *); |
| 669 |
void icmp6_redirect_input(struct mbuf *, int); |
| 670 |
void icmp6_redirect_output(struct mbuf *, struct rtentry *); |
| 671 |
int icmp6_sysctl(int *, u_int, void *, size_t *, void *, size_t); |
| 672 |
|
| 673 |
void icmp6_statinc(u_int);
|
| 674 |
|
| 675 |
struct ip6ctlparam;
|
| 676 |
void icmp6_mtudisc_update(struct ip6ctlparam *, int); |
| 677 |
void icmp6_mtudisc_callback_register(void (*)(struct in6_addr *)); |
| 678 |
|
| 679 |
/* XXX: is this the right place for these macros? */
|
| 680 |
#define icmp6_ifstat_inc(ifp, tag) \
|
| 681 |
do { \
|
| 682 |
if (ifp) \
|
| 683 |
((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->icmp6_ifstat->tag++; \
|
| 684 |
} while (/*CONSTCOND*/ 0) |
| 685 |
|
| 686 |
#define icmp6_ifoutstat_inc(ifp, type, code) \
|
| 687 |
do { \
|
| 688 |
icmp6_ifstat_inc(ifp, ifs6_out_msg); \ |
| 689 |
switch(type) { \
|
| 690 |
case ICMP6_DST_UNREACH: \
|
| 691 |
icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \ |
| 692 |
if (code == ICMP6_DST_UNREACH_ADMIN) \
|
| 693 |
icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \ |
| 694 |
break; \
|
| 695 |
case ICMP6_PACKET_TOO_BIG: \
|
| 696 |
icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \ |
| 697 |
break; \
|
| 698 |
case ICMP6_TIME_EXCEEDED: \
|
| 699 |
icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \ |
| 700 |
break; \
|
| 701 |
case ICMP6_PARAM_PROB: \
|
| 702 |
icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \ |
| 703 |
break; \
|
| 704 |
case ICMP6_ECHO_REQUEST: \
|
| 705 |
icmp6_ifstat_inc(ifp, ifs6_out_echo); \ |
| 706 |
break; \
|
| 707 |
case ICMP6_ECHO_REPLY: \
|
| 708 |
icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \ |
| 709 |
break; \
|
| 710 |
case MLD_LISTENER_QUERY: \
|
| 711 |
icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \ |
| 712 |
break; \
|
| 713 |
case MLD_LISTENER_REPORT: \
|
| 714 |
icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \ |
| 715 |
break; \
|
| 716 |
case MLD_LISTENER_DONE: \
|
| 717 |
icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \ |
| 718 |
break; \
|
| 719 |
case ND_ROUTER_SOLICIT: \
|
| 720 |
icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \ |
| 721 |
break; \
|
| 722 |
case ND_ROUTER_ADVERT: \
|
| 723 |
icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \ |
| 724 |
break; \
|
| 725 |
case ND_NEIGHBOR_SOLICIT: \
|
| 726 |
icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \ |
| 727 |
break; \
|
| 728 |
case ND_NEIGHBOR_ADVERT: \
|
| 729 |
icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \ |
| 730 |
break; \
|
| 731 |
case ND_REDIRECT: \
|
| 732 |
icmp6_ifstat_inc(ifp, ifs6_out_redirect); \ |
| 733 |
break; \
|
| 734 |
} \ |
| 735 |
} while (/*CONSTCOND*/ 0) |
| 736 |
|
| 737 |
extern int icmp6_rediraccept; /* accept/process redirects */ |
| 738 |
extern int icmp6_redirtimeout; /* cache time for redirect routes */ |
| 739 |
#endif /* _KERNEL */ |
| 740 |
|
| 741 |
#ifdef ICMP6_STRINGS
|
| 742 |
/* Info: http://www.iana.org/assignments/icmpv6-parameters */
|
| 743 |
|
| 744 |
static const char * const icmp6_type_err[] = { |
| 745 |
"reserved0", "unreach", "packet_too_big", "timxceed", "paramprob", |
| 746 |
NULL
|
| 747 |
}; |
| 748 |
|
| 749 |
static const char * const icmp6_type_info[] = { |
| 750 |
"echo", "echoreply", |
| 751 |
"mcastlistenq", "mcastlistenrep", "mcastlistendone", |
| 752 |
"rtsol", "rtadv", "neighsol", "neighadv", "redirect", |
| 753 |
"routerrenum", "nodeinfoq", "nodeinfor", "invneighsol", "invneighrep", |
| 754 |
"mcastlistenrep2", "haad_req", "haad_rep", |
| 755 |
"mobile_psol", "mobile_padv", "cga_sol", "cga_adv", |
| 756 |
"experimental150", "mcast_rtadv", "mcast_rtsol", "mcast_rtterm", |
| 757 |
"fmipv6_msg", "rpl_control", NULL |
| 758 |
}; |
| 759 |
|
| 760 |
static const char * const icmp6_code_none[] = { "none", NULL }; |
| 761 |
|
| 762 |
static const char * const icmp6_code_unreach[] = { |
| 763 |
"noroute", "admin", "beyondscope", "addr", "port", |
| 764 |
"srcaddr_policy", "reject_route", "source_route_err", NULL |
| 765 |
}; |
| 766 |
|
| 767 |
static const char * const icmp6_code_timxceed[] = { |
| 768 |
"intrans", "reass", NULL |
| 769 |
}; |
| 770 |
|
| 771 |
static const char * const icmp6_code_paramprob[] = { |
| 772 |
"hdr_field", "nxthdr_type", "option", NULL |
| 773 |
}; |
| 774 |
|
| 775 |
/* not all informational icmps that have codes have a names array */
|
| 776 |
#endif
|
| 777 |
|
| 778 |
#endif /* !_NETINET_ICMP6_H_ */ |