376 lines
15 KiB
C
376 lines
15 KiB
C
/* $OpenBSD: in6_var.h,v 1.79 2024/04/21 17:32:11 florian Exp $ */
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/* $KAME: in6_var.h,v 1.55 2001/02/16 12:49:45 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) 1985, 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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* @(#)in_var.h 8.1 (Berkeley) 6/10/93
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*/
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#ifndef _NETINET6_IN6_VAR_H_
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#define _NETINET6_IN6_VAR_H_
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/*
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* Interface address, Internet version. One of these structures
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* is allocated for each interface with an Internet address.
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* The ifaddr structure contains the protocol-independent part
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* of the structure and is assumed to be first.
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*/
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/*
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* pltime/vltime are just for future reference (required to implements 2
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* hour rule for hosts). they should never be modified by nd6_timeout or
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* anywhere else.
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* userland -> kernel: accept pltime/vltime
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* kernel -> userland: throw up everything
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* in kernel: modify preferred/expire only
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*/
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struct in6_addrlifetime {
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time_t ia6t_expire; /* valid lifetime expiration time */
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time_t ia6t_preferred; /* preferred lifetime expiration time */
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u_int32_t ia6t_vltime; /* valid lifetime */
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u_int32_t ia6t_pltime; /* prefix lifetime */
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};
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#ifdef _KERNEL
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struct in6_ifaddr {
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struct ifaddr ia_ifa; /* protocol-independent info */
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#define ia_ifp ia_ifa.ifa_ifp
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#define ia_flags ia_ifa.ifa_flags
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struct sockaddr_in6 ia_addr; /* interface address */
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struct sockaddr_in6 ia_gwaddr; /* router we learned address from */
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struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
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struct sockaddr_in6 ia_prefixmask; /* prefix mask */
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TAILQ_ENTRY(in6_ifaddr) ia_list; /* list of IP6 addresses */
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int ia6_flags;
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struct in6_addrlifetime ia6_lifetime;
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time_t ia6_updatetime;
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/* multicast addresses joined from the kernel */
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LIST_HEAD(, in6_multi_mship) ia6_memberships;
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};
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#endif /* _KERNEL */
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/*
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* IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
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*/
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struct in6_ifstat {
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u_int64_t ifs6_in_receive; /* # of total input datagram */
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u_int64_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
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u_int64_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
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u_int64_t ifs6_in_noroute; /* # of datagrams with no route */
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u_int64_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
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u_int64_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
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/* NOTE: increment on final dst if */
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u_int64_t ifs6_in_truncated; /* # of truncated datagrams */
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u_int64_t ifs6_in_discard; /* # of discarded datagrams */
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/* NOTE: fragment timeout is not here */
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u_int64_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
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/* NOTE: increment on final dst if */
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u_int64_t ifs6_out_forward; /* # of datagrams forwarded */
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/* NOTE: increment on outgoing if */
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u_int64_t ifs6_out_request; /* # of outgoing datagrams from ULP */
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/* NOTE: does not include forwards */
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u_int64_t ifs6_out_discard; /* # of discarded datagrams */
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u_int64_t ifs6_out_fragok; /* # of datagrams fragmented */
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u_int64_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
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u_int64_t ifs6_out_fragcreat; /* # of fragment datagrams */
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/* NOTE: this is # after fragment */
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u_int64_t ifs6_reass_reqd; /* # of incoming fragmented packets */
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/* NOTE: increment on final dst if */
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u_int64_t ifs6_reass_ok; /* # of reassembled packets */
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/* NOTE: this is # after reass */
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/* NOTE: increment on final dst if */
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u_int64_t ifs6_reass_fail; /* # of reass failures */
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/* NOTE: may not be packet count */
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/* NOTE: increment on final dst if */
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u_int64_t ifs6_in_mcast; /* # of inbound multicast datagrams */
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u_int64_t ifs6_out_mcast; /* # of outbound multicast datagrams */
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};
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/*
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* ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
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* XXX: I'm not sure if this file is the right place for this structure...
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*/
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struct icmp6_ifstat {
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/*
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* Input statistics
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*/
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/* ipv6IfIcmpInMsgs, total # of input messages */
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u_int64_t ifs6_in_msg;
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/* ipv6IfIcmpInErrors, # of input error messages */
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u_int64_t ifs6_in_error;
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/* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
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u_int64_t ifs6_in_dstunreach;
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/* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
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u_int64_t ifs6_in_adminprohib;
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/* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
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u_int64_t ifs6_in_timeexceed;
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/* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
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u_int64_t ifs6_in_paramprob;
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/* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
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u_int64_t ifs6_in_pkttoobig;
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/* ipv6IfIcmpInEchos, # of input echo requests */
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u_int64_t ifs6_in_echo;
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/* ipv6IfIcmpInEchoReplies, # of input echo replies */
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u_int64_t ifs6_in_echoreply;
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/* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
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u_int64_t ifs6_in_routersolicit;
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/* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
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u_int64_t ifs6_in_routeradvert;
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/* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
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u_int64_t ifs6_in_neighborsolicit;
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/* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
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u_int64_t ifs6_in_neighboradvert;
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/* ipv6IfIcmpInRedirects, # of input redirects */
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u_int64_t ifs6_in_redirect;
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/* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
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u_int64_t ifs6_in_mldquery;
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/* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
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u_int64_t ifs6_in_mldreport;
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/* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
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u_int64_t ifs6_in_mlddone;
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/*
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* Output statistics. We should solve unresolved routing problem...
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*/
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/* ipv6IfIcmpOutMsgs, total # of output messages */
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u_int64_t ifs6_out_msg;
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/* ipv6IfIcmpOutErrors, # of output error messages */
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u_int64_t ifs6_out_error;
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/* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
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u_int64_t ifs6_out_dstunreach;
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/* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
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u_int64_t ifs6_out_adminprohib;
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/* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
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u_int64_t ifs6_out_timeexceed;
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/* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
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u_int64_t ifs6_out_paramprob;
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/* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
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u_int64_t ifs6_out_pkttoobig;
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/* ipv6IfIcmpOutEchos, # of output echo requests */
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u_int64_t ifs6_out_echo;
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/* ipv6IfIcmpOutEchoReplies, # of output echo replies */
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u_int64_t ifs6_out_echoreply;
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/* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
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u_int64_t ifs6_out_routersolicit;
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/* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
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u_int64_t ifs6_out_routeradvert;
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/* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
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u_int64_t ifs6_out_neighborsolicit;
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/* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
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u_int64_t ifs6_out_neighboradvert;
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/* ipv6IfIcmpOutRedirects, # of output redirects */
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u_int64_t ifs6_out_redirect;
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/* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
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u_int64_t ifs6_out_mldquery;
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/* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
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u_int64_t ifs6_out_mldreport;
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/* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
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u_int64_t ifs6_out_mlddone;
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};
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struct in6_ifreq {
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char ifr_name[IFNAMSIZ];
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union {
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struct sockaddr_in6 ifru_addr;
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struct sockaddr_in6 ifru_dstaddr;
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short ifru_flags;
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int ifru_flags6;
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int ifru_metric;
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caddr_t ifru_data;
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struct in6_addrlifetime ifru_lifetime;
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struct in6_ifstat ifru_stat;
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struct icmp6_ifstat ifru_icmp6stat;
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} ifr_ifru;
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};
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struct in6_aliasreq {
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char ifra_name[IFNAMSIZ];
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union {
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struct sockaddr_in6 ifrau_addr;
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int ifrau_align;
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} ifra_ifrau;
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#ifndef ifra_addr
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#define ifra_addr ifra_ifrau.ifrau_addr
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#endif
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struct sockaddr_in6 ifra_dstaddr;
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struct sockaddr_in6 ifra_prefixmask;
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int ifra_flags;
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struct in6_addrlifetime ifra_lifetime;
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};
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/*
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* Given a pointer to an in6_ifaddr (ifaddr),
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* return a pointer to the addr as a sockaddr_in6
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*/
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#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
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#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
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#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
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#define IA6_SIN6(ia) (&((ia)->ia_addr))
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#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
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#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
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#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
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#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
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#define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq)
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#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
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#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
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#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
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#define SIOCGIFINFO_IN6 _IOWR('i', 108, struct in6_ndireq)
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#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
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#define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq)
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#define SIOCGETSGCNT_IN6 _IOWR('u', 106, struct sioc_sg_req6)
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#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, struct sioc_mif_req6)
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#define IN6_IFF_ANYCAST 0x01 /* anycast address */
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#define IN6_IFF_TENTATIVE 0x02 /* tentative address */
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#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
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#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
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#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
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#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
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#define IN6_IFF_TEMPORARY 0x80 /* RFC 4941 temporary address */
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#ifdef _KERNEL
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#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
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(((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
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(((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
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(((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
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(((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
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#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
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#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
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/*
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* Multi-cast membership entry. One for each group/ifp that a PCB
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* belongs to.
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*/
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struct in6_multi_mship {
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struct in6_multi *i6mm_maddr; /* Multicast address pointer */
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LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
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};
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struct in6_multi {
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struct ifmaddr in6m_ifma; /* Protocol-independent info */
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#define in6m_refcnt in6m_ifma.ifma_refcnt
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#define in6m_ifidx in6m_ifma.ifma_ifidx
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struct sockaddr_in6 in6m_sin; /* IPv6 multicast address */
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#define in6m_addr in6m_sin.sin6_addr
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u_int in6m_state; /* state of membership */
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u_int in6m_timer; /* MLD6 membership report timer */
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};
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static __inline struct in6_multi *
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ifmatoin6m(struct ifmaddr *ifma)
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{
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return ((struct in6_multi *)(ifma));
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}
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/*
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* Macros for looking up the in6_multi record for a given IP6 multicast
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* address on a given interface. If no matching record is found, "in6m"
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* returns NULL.
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*/
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#define IN6_LOOKUP_MULTI(addr, ifp, in6m) \
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/* struct in6_addr addr; */ \
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/* struct ifnet *ifp; */ \
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/* struct in6_multi *in6m; */ \
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do { \
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struct ifmaddr *ifma; \
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\
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(in6m) = NULL; \
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TAILQ_FOREACH(ifma, &(ifp)->if_maddrlist, ifma_list) \
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if (ifma->ifma_addr->sa_family == AF_INET6 && \
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IN6_ARE_ADDR_EQUAL(&ifmatoin6m(ifma)->in6m_addr, \
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&(addr))) { \
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(in6m) = ifmatoin6m(ifma); \
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break; \
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} \
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} while (/* CONSTCOND */ 0)
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struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *, int *);
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void in6_delmulti(struct in6_multi *);
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int in6_hasmulti(struct in6_addr *, struct ifnet *);
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struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *, int *);
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void in6_leavegroup(struct in6_multi_mship *);
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int in6_control(struct socket *, u_long, caddr_t, struct ifnet *);
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int in6_ioctl(u_long, caddr_t, struct ifnet *, int);
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int in6_update_ifa(struct ifnet *, struct in6_aliasreq *,
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struct in6_ifaddr *);
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void in6_purgeaddr(struct ifaddr *);
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int in6if_do_dad(struct ifnet *);
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void *in6_domifattach(struct ifnet *);
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void in6_domifdetach(struct ifnet *, void *);
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struct in6_ifaddr *in6ifa_ifpforlinklocal(struct ifnet *, int);
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struct in6_ifaddr *in6ifa_ifpwithaddr(struct ifnet *, struct in6_addr *);
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int in6_addr2scopeid(unsigned int, struct in6_addr *);
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int in6_matchlen(struct in6_addr *, struct in6_addr *);
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void in6_prefixlen2mask(struct in6_addr *, int);
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void in6_purgeprefix(struct ifnet *);
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#endif /* _KERNEL */
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#endif /* _NETINET6_IN6_VAR_H_ */
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