830 lines
28 KiB
C
830 lines
28 KiB
C
/* $NetBSD: in6.h,v 1.83 2015/02/20 22:13:48 rjs Exp $ */
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/* $KAME: in6.h,v 1.83 2001/03/29 02:55:07 jinmei 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, 1990, 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.h 8.3 (Berkeley) 1/3/94
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*/
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#ifndef _NETINET6_IN6_H_
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#define _NETINET6_IN6_H_
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#include <sys/featuretest.h>
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#ifndef __KAME_NETINET_IN_H_INCLUDED_
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#error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553"
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#endif
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#include <sys/socket.h>
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/*
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* Identification of the network protocol stack
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* for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
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* has the table of implementation/integration differences.
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*/
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#define __KAME__
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#define __KAME_VERSION "NetBSD-current"
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/*
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* Local port number conventions:
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*
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* Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
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* unless a kernel is compiled with IPNOPRIVPORTS defined.
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*
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* When a user does a bind(2) or connect(2) with a port number of zero,
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* a non-conflicting local port address is chosen.
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*
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* The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
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* that is settable by sysctl(3); net.inet.ip.anonportmin and
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* net.inet.ip.anonportmax respectively.
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*
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* A user may set the IPPROTO_IP option IP_PORTRANGE to change this
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* default assignment range.
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*
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* The value IP_PORTRANGE_DEFAULT causes the default behavior.
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*
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* The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
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* and exists only for FreeBSD compatibility purposes.
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*
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* The value IP_PORTRANGE_LOW changes the range to the "low" are
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* that is (by convention) restricted to privileged processes.
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* This convention is based on "vouchsafe" principles only.
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* It is only secure if you trust the remote host to restrict these ports.
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* The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
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*/
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#if defined(_NETBSD_SOURCE)
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#define IPV6PORT_RESERVED 1024
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#define IPV6PORT_ANONMIN 49152
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#define IPV6PORT_ANONMAX 65535
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#define IPV6PORT_RESERVEDMIN 600
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#define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1)
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#endif
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/*
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* IPv6 address
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*/
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struct in6_addr {
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union {
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__uint8_t __u6_addr8[16];
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__uint16_t __u6_addr16[8];
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uint32_t __u6_addr32[4];
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} __u6_addr; /* 128-bit IP6 address */
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};
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#define s6_addr __u6_addr.__u6_addr8
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#ifdef _KERNEL /* XXX nonstandard */
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#define s6_addr8 __u6_addr.__u6_addr8
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#define s6_addr16 __u6_addr.__u6_addr16
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#define s6_addr32 __u6_addr.__u6_addr32
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#endif
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#define INET6_ADDRSTRLEN 46
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/*
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* Socket address for IPv6
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*/
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#if defined(_NETBSD_SOURCE)
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#define SIN6_LEN
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#endif
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struct sockaddr_in6 {
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uint8_t sin6_len; /* length of this struct(socklen_t)*/
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sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */
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in_port_t sin6_port; /* Transport layer port */
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uint32_t sin6_flowinfo; /* IP6 flow information */
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struct in6_addr sin6_addr; /* IP6 address */
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uint32_t sin6_scope_id; /* scope zone index */
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};
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/*
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* Local definition for masks
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*/
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#ifdef _KERNEL /* XXX nonstandard */
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#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
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#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
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#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
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#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
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0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
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#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
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#endif
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#ifdef _KERNEL
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extern const struct sockaddr_in6 sa6_any;
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extern const struct in6_addr in6mask0;
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extern const struct in6_addr in6mask32;
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extern const struct in6_addr in6mask64;
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extern const struct in6_addr in6mask96;
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extern const struct in6_addr in6mask128;
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#endif /* _KERNEL */
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/*
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* Macros started with IPV6_ADDR is KAME local
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*/
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#ifdef _KERNEL /* XXX nonstandard */
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#if BYTE_ORDER == BIG_ENDIAN
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#define IPV6_ADDR_INT32_ONE 1
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#define IPV6_ADDR_INT32_TWO 2
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#define IPV6_ADDR_INT32_MNL 0xff010000
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#define IPV6_ADDR_INT32_MLL 0xff020000
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#define IPV6_ADDR_INT32_SMP 0x0000ffff
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#define IPV6_ADDR_INT16_ULL 0xfe80
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#define IPV6_ADDR_INT16_USL 0xfec0
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#define IPV6_ADDR_INT16_MLL 0xff02
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#elif BYTE_ORDER == LITTLE_ENDIAN
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#define IPV6_ADDR_INT32_ONE 0x01000000
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#define IPV6_ADDR_INT32_TWO 0x02000000
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#define IPV6_ADDR_INT32_MNL 0x000001ff
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#define IPV6_ADDR_INT32_MLL 0x000002ff
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#define IPV6_ADDR_INT32_SMP 0xffff0000
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#define IPV6_ADDR_INT16_ULL 0x80fe
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#define IPV6_ADDR_INT16_USL 0xc0fe
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#define IPV6_ADDR_INT16_MLL 0x02ff
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#endif
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#endif
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/*
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* Definition of some useful macros to handle IP6 addresses
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*/
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#define IN6ADDR_ANY_INIT \
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{{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
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#define IN6ADDR_LOOPBACK_INIT \
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{{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
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#define IN6ADDR_NODELOCAL_ALLNODES_INIT \
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{{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
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#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
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{{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
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#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
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{{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
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extern const struct in6_addr in6addr_any;
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extern const struct in6_addr in6addr_loopback;
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extern const struct in6_addr in6addr_nodelocal_allnodes;
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extern const struct in6_addr in6addr_linklocal_allnodes;
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extern const struct in6_addr in6addr_linklocal_allrouters;
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#define IN6_ARE_ADDR_EQUAL(a, b) \
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(memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
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/*
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* Unspecified
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*/
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#define IN6_IS_ADDR_UNSPECIFIED(a) \
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((a)->__u6_addr.__u6_addr32[0] == 0 && \
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(a)->__u6_addr.__u6_addr32[1] == 0 && \
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(a)->__u6_addr.__u6_addr32[2] == 0 && \
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(a)->__u6_addr.__u6_addr32[3] == 0)
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/*
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* Loopback
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*/
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#define IN6_IS_ADDR_LOOPBACK(a) \
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((a)->__u6_addr.__u6_addr32[0] == 0 && \
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(a)->__u6_addr.__u6_addr32[1] == 0 && \
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(a)->__u6_addr.__u6_addr32[2] == 0 && \
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(a)->__u6_addr.__u6_addr32[3] == ntohl(1))
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/*
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* IPv4 compatible
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*/
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#define IN6_IS_ADDR_V4COMPAT(a) \
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((a)->__u6_addr.__u6_addr32[0] == 0 && \
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(a)->__u6_addr.__u6_addr32[1] == 0 && \
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(a)->__u6_addr.__u6_addr32[2] == 0 && \
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(a)->__u6_addr.__u6_addr32[3] != 0 && \
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(a)->__u6_addr.__u6_addr32[3] != ntohl(1))
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/*
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* Mapped
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*/
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#define IN6_IS_ADDR_V4MAPPED(a) \
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((a)->__u6_addr.__u6_addr32[0] == 0 && \
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(a)->__u6_addr.__u6_addr32[1] == 0 && \
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(a)->__u6_addr.__u6_addr32[2] == ntohl(0x0000ffff))
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/*
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* KAME Scope Values
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*/
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#ifdef _KERNEL /* XXX nonstandard */
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#define IPV6_ADDR_SCOPE_NODELOCAL 0x01
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#define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
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#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
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#define IPV6_ADDR_SCOPE_SITELOCAL 0x05
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#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
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#define IPV6_ADDR_SCOPE_GLOBAL 0x0e
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#else
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#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
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#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02
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#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05
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#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
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#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e
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#endif
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/*
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* Unicast Scope
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* Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
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*/
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#define IN6_IS_ADDR_LINKLOCAL(a) \
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(((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
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#define IN6_IS_ADDR_SITELOCAL(a) \
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(((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
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/*
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* Multicast
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*/
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#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
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#ifdef _KERNEL /* XXX nonstandard */
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#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
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#else
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#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
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#endif
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/*
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* Multicast Scope
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*/
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#ifdef _KERNEL /* refers nonstandard items */
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#define IN6_IS_ADDR_MC_NODELOCAL(a) \
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(IN6_IS_ADDR_MULTICAST(a) && \
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(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
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#define IN6_IS_ADDR_MC_INTFACELOCAL(a) \
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(IN6_IS_ADDR_MULTICAST(a) && \
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(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL))
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#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
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(IN6_IS_ADDR_MULTICAST(a) && \
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(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
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#define IN6_IS_ADDR_MC_SITELOCAL(a) \
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(IN6_IS_ADDR_MULTICAST(a) && \
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(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
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#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
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(IN6_IS_ADDR_MULTICAST(a) && \
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(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
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#define IN6_IS_ADDR_MC_GLOBAL(a) \
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(IN6_IS_ADDR_MULTICAST(a) && \
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(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
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#else
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#define IN6_IS_ADDR_MC_NODELOCAL(a) \
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(IN6_IS_ADDR_MULTICAST(a) && \
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(__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
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#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
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(IN6_IS_ADDR_MULTICAST(a) && \
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(__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
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#define IN6_IS_ADDR_MC_SITELOCAL(a) \
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(IN6_IS_ADDR_MULTICAST(a) && \
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(__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
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#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
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(IN6_IS_ADDR_MULTICAST(a) && \
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(__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
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#define IN6_IS_ADDR_MC_GLOBAL(a) \
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(IN6_IS_ADDR_MULTICAST(a) && \
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(__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
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#endif
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#ifdef _KERNEL /* nonstandard */
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/*
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* KAME Scope
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*/
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#define IN6_IS_SCOPE_LINKLOCAL(a) \
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((IN6_IS_ADDR_LINKLOCAL(a)) || \
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(IN6_IS_ADDR_MC_LINKLOCAL(a)))
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#define IN6_IS_SCOPE_EMBEDDABLE(__a) \
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(IN6_IS_SCOPE_LINKLOCAL(__a) || IN6_IS_ADDR_MC_INTFACELOCAL(__a))
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#define IFA6_IS_DEPRECATED(a) \
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((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \
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(u_int32_t)((time_second - (a)->ia6_updatetime)) > \
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(a)->ia6_lifetime.ia6t_pltime)
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#define IFA6_IS_INVALID(a) \
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((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \
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(u_int32_t)((time_second - (a)->ia6_updatetime)) > \
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(a)->ia6_lifetime.ia6t_vltime)
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#endif
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/*
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* Options for use with [gs]etsockopt at the IPV6 level.
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* First word of comment is data type; bool is stored in int.
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*/
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/* no hdrincl */
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#if 0
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/* These are deprecated non-standard options which are no longer supported. */
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#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */
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#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */
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#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */
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#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */
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#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */
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#endif
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#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */
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#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */
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#define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */
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#define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */
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#define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */
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/* The join and leave membership option numbers need to match with the v4 ones */
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#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */
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#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */
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#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */
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#if defined(_NETBSD_SOURCE)
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#define IPV6_PORTALGO 17 /* int; port selection algo (rfc6056) */
|
|
#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
|
|
#endif
|
|
/* RFC2292 options */
|
|
#ifdef _KERNEL
|
|
#define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */
|
|
#define IPV6_2292HOPLIMIT 20 /* bool; hop limit */
|
|
#define IPV6_2292NEXTHOP 21 /* bool; next hop addr */
|
|
#define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */
|
|
#define IPV6_2292DSTOPTS 23 /* bool; destination option */
|
|
#define IPV6_2292RTHDR 24 /* bool; routing header */
|
|
#define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
|
|
#endif
|
|
#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
|
|
#define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */
|
|
|
|
#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */
|
|
#define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */
|
|
|
|
/* new socket options introduced in RFC3542 */
|
|
#define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */
|
|
|
|
#define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */
|
|
#define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */
|
|
#define IPV6_RECVRTHDR 38 /* bool; recv routing header */
|
|
#define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */
|
|
#define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */
|
|
#ifdef _KERNEL
|
|
#define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */
|
|
#endif
|
|
#define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */
|
|
#define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */
|
|
#define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt),
|
|
4 bytes int; MTU notification (cmsg) */
|
|
|
|
/* more new socket options introduced in RFC3542 */
|
|
#define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */
|
|
#define IPV6_HOPLIMIT 47 /* int; send hop limit */
|
|
#define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */
|
|
#define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */
|
|
#define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */
|
|
#define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */
|
|
|
|
#define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */
|
|
#ifdef _KERNEL
|
|
#define IPV6_OTCLASS 58 /* u_int8_t; send traffic class value */
|
|
#endif
|
|
|
|
#define IPV6_TCLASS 61 /* int; send traffic class value */
|
|
#define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */
|
|
#define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary address as
|
|
* the sorce address */
|
|
/* to define items, should talk with KAME guys first, for *BSD compatibility */
|
|
|
|
#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */
|
|
#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */
|
|
#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
|
|
|
|
/*
|
|
* Defaults and limits for options
|
|
*/
|
|
#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */
|
|
#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
|
|
|
|
/*
|
|
* Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
|
|
*/
|
|
struct ipv6_mreq {
|
|
struct in6_addr ipv6mr_multiaddr;
|
|
unsigned int ipv6mr_interface;
|
|
};
|
|
|
|
/*
|
|
* IPV6_PKTINFO: Packet information(RFC2292 sec 5)
|
|
*/
|
|
struct in6_pktinfo {
|
|
struct in6_addr ipi6_addr; /* src/dst IPv6 address */
|
|
unsigned int ipi6_ifindex; /* send/recv interface index */
|
|
};
|
|
|
|
/*
|
|
* Control structure for IPV6_RECVPATHMTU socket option.
|
|
*/
|
|
struct ip6_mtuinfo {
|
|
struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */
|
|
uint32_t ip6m_mtu;
|
|
};
|
|
|
|
/*
|
|
* Argument for IPV6_PORTRANGE:
|
|
* - which range to search when port is unspecified at bind() or connect()
|
|
*/
|
|
#define IPV6_PORTRANGE_DEFAULT 0 /* default range */
|
|
#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
|
|
#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
|
|
|
|
#if defined(_NETBSD_SOURCE)
|
|
/*
|
|
* Definitions for inet6 sysctl operations.
|
|
*
|
|
* Third level is protocol number.
|
|
* Fourth level is desired variable within that protocol.
|
|
*/
|
|
#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
|
|
|
|
#define CTL_IPV6PROTO_NAMES { \
|
|
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ "tcp6", CTLTYPE_NODE }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ "udp6", CTLTYPE_NODE }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
|
|
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
|
|
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
|
|
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ "ip6", CTLTYPE_NODE }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ "ipsec6", CTLTYPE_NODE }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ "icmp6", CTLTYPE_NODE }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
|
|
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
|
|
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
|
|
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
|
|
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
|
|
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
|
|
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
|
|
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ "pim6", CTLTYPE_NODE }, \
|
|
}
|
|
|
|
/*
|
|
* Names for IP sysctl objects
|
|
*/
|
|
#define IPV6CTL_FORWARDING 1 /* act as router */
|
|
#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/
|
|
#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
|
|
#ifdef notyet
|
|
#define IPV6CTL_DEFMTU 4 /* default MTU */
|
|
#endif
|
|
#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
|
|
#define IPV6CTL_STATS 6 /* stats */
|
|
#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
|
|
#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
|
|
#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
|
|
#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
|
|
#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
|
|
#define IPV6CTL_ACCEPT_RTADV 12
|
|
#define IPV6CTL_KEEPFAITH 13
|
|
#define IPV6CTL_LOG_INTERVAL 14
|
|
#define IPV6CTL_HDRNESTLIMIT 15
|
|
#define IPV6CTL_DAD_COUNT 16
|
|
#define IPV6CTL_AUTO_FLOWLABEL 17
|
|
#define IPV6CTL_DEFMCASTHLIM 18
|
|
#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
|
|
#define IPV6CTL_KAME_VERSION 20
|
|
#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */
|
|
#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
|
|
/* 23: reserved */
|
|
#define IPV6CTL_V6ONLY 24
|
|
/* 25 to 27: reserved */
|
|
#define IPV6CTL_ANONPORTMIN 28 /* minimum ephemeral port */
|
|
#define IPV6CTL_ANONPORTMAX 29 /* maximum ephemeral port */
|
|
#define IPV6CTL_LOWPORTMIN 30 /* minimum reserved port */
|
|
#define IPV6CTL_LOWPORTMAX 31 /* maximum reserved port */
|
|
/* 32 to 34: reserved */
|
|
#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */
|
|
/* 36 to 38: reserved */
|
|
#define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */
|
|
/* 40: reserved */
|
|
#define IPV6CTL_MAXFRAGS 41 /* max fragments */
|
|
#define IPV6CTL_IFQ 42 /* IPv6 packet input queue */
|
|
#define IPV6CTL_RTADV_MAXROUTES 43 /* maximum number of routes */
|
|
/* via router advertisement */
|
|
#define IPV6CTL_RTADV_NUMROUTES 44 /* current number of routes */
|
|
/* via router advertisement */
|
|
/* New entries should be added here from current IPV6CTL_MAXID value. */
|
|
/* to define items, should talk with KAME guys first, for *BSD compatibility */
|
|
#define IPV6CTL_MAXID 45
|
|
|
|
#define IPV6CTL_NAMES { \
|
|
{ 0, 0 }, \
|
|
{ "forwarding", CTLTYPE_INT }, \
|
|
{ "redirect", CTLTYPE_INT }, \
|
|
{ "hlim", CTLTYPE_INT }, \
|
|
{ "mtu", CTLTYPE_INT }, \
|
|
{ "forwsrcrt", CTLTYPE_INT }, \
|
|
{ "stats", CTLTYPE_STRUCT }, \
|
|
{ 0, 0 }, \
|
|
{ "mrtproto", CTLTYPE_INT }, \
|
|
{ "maxfragpackets", CTLTYPE_INT }, \
|
|
{ "sourcecheck", CTLTYPE_INT }, \
|
|
{ "sourcecheck_logint", CTLTYPE_INT }, \
|
|
{ "accept_rtadv", CTLTYPE_INT }, \
|
|
{ "keepfaith", CTLTYPE_INT }, \
|
|
{ "log_interval", CTLTYPE_INT }, \
|
|
{ "hdrnestlimit", CTLTYPE_INT }, \
|
|
{ "dad_count", CTLTYPE_INT }, \
|
|
{ "auto_flowlabel", CTLTYPE_INT }, \
|
|
{ "defmcasthlim", CTLTYPE_INT }, \
|
|
{ "gifhlim", CTLTYPE_INT }, \
|
|
{ "kame_version", CTLTYPE_STRING }, \
|
|
{ "use_deprecated", CTLTYPE_INT }, \
|
|
{ "rr_prune", CTLTYPE_INT }, \
|
|
{ 0, 0 }, \
|
|
{ "v6only", CTLTYPE_INT }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ "anonportmin", CTLTYPE_INT }, \
|
|
{ "anonportmax", CTLTYPE_INT }, \
|
|
{ "lowportmin", CTLTYPE_INT }, \
|
|
{ "lowportmax", CTLTYPE_INT }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ 0, 0 }, \
|
|
{ "maxfrags", CTLTYPE_INT }, \
|
|
{ "ifq", CTLTYPE_NODE }, \
|
|
{ "rtadv_maxroutes", CTLTYPE_INT }, \
|
|
{ "rtadv_numroutes", CTLTYPE_INT }, \
|
|
}
|
|
|
|
#endif /* _NETBSD_SOURCE */
|
|
|
|
#ifdef _KERNEL
|
|
struct cmsghdr;
|
|
|
|
/*
|
|
* in6_cksum_phdr:
|
|
*
|
|
* Compute significant parts of the IPv6 checksum pseudo-header
|
|
* for use in a delayed TCP/UDP checksum calculation.
|
|
*
|
|
* Args:
|
|
*
|
|
* src Source IPv6 address
|
|
* dst Destination IPv6 address
|
|
* len htonl(proto-hdr-len)
|
|
* nxt htonl(next-proto-number)
|
|
*
|
|
* NOTE: We expect the src and dst addresses to be 16-bit
|
|
* aligned!
|
|
*/
|
|
static __inline u_int16_t __unused
|
|
in6_cksum_phdr(const struct in6_addr *src, const struct in6_addr *dst,
|
|
u_int32_t len, u_int32_t nxt)
|
|
{
|
|
u_int32_t sum = 0;
|
|
const u_int16_t *w;
|
|
|
|
/*LINTED*/
|
|
w = (const u_int16_t *) src;
|
|
sum += w[0];
|
|
if (!IN6_IS_SCOPE_LINKLOCAL(src))
|
|
sum += w[1];
|
|
sum += w[2]; sum += w[3]; sum += w[4]; sum += w[5];
|
|
sum += w[6]; sum += w[7];
|
|
|
|
/*LINTED*/
|
|
w = (const u_int16_t *) dst;
|
|
sum += w[0];
|
|
if (!IN6_IS_SCOPE_LINKLOCAL(dst))
|
|
sum += w[1];
|
|
sum += w[2]; sum += w[3]; sum += w[4]; sum += w[5];
|
|
sum += w[6]; sum += w[7];
|
|
|
|
sum += (u_int16_t)(len >> 16) + (u_int16_t)(len /*& 0xffff*/);
|
|
|
|
sum += (u_int16_t)(nxt >> 16) + (u_int16_t)(nxt /*& 0xffff*/);
|
|
|
|
sum = (u_int16_t)(sum >> 16) + (u_int16_t)(sum /*& 0xffff*/);
|
|
|
|
if (sum > 0xffff)
|
|
sum -= 0xffff;
|
|
|
|
return (sum);
|
|
}
|
|
|
|
struct mbuf;
|
|
struct ifnet;
|
|
int sockaddr_in6_cmp(const struct sockaddr *, const struct sockaddr *);
|
|
struct sockaddr *sockaddr_in6_externalize(struct sockaddr *, socklen_t,
|
|
const struct sockaddr *);
|
|
int in6_cksum(struct mbuf *, u_int8_t, u_int32_t, u_int32_t);
|
|
void in6_delayed_cksum(struct mbuf *);
|
|
int in6_localaddr(const struct in6_addr *);
|
|
int in6_addrscope(const struct in6_addr *);
|
|
struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *);
|
|
extern void in6_if_link_up(struct ifnet *);
|
|
extern void in6_if_link_down(struct ifnet *);
|
|
extern void in6_if_up(struct ifnet *);
|
|
extern void in6_if_down(struct ifnet *);
|
|
#ifndef __FreeBSD__
|
|
extern int in6_src_sysctl(void *, size_t *, void *, size_t);
|
|
#endif
|
|
extern void addrsel_policy_init(void);
|
|
extern u_char ip6_protox[];
|
|
|
|
#define satosin6(sa) ((struct sockaddr_in6 *)(sa))
|
|
#define satocsin6(sa) ((const struct sockaddr_in6 *)(sa))
|
|
#define sin6tosa(sin6) ((struct sockaddr *)(sin6))
|
|
#define sin6tocsa(sin6) ((const struct sockaddr *)(sin6))
|
|
#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
|
|
|
|
static inline void
|
|
sockaddr_in6_init1(struct sockaddr_in6 *sin6, const struct in6_addr *addr,
|
|
in_port_t port, uint32_t flowinfo, uint32_t scope_id)
|
|
{
|
|
sin6->sin6_port = port;
|
|
sin6->sin6_flowinfo = flowinfo;
|
|
sin6->sin6_addr = *addr;
|
|
sin6->sin6_scope_id = scope_id;
|
|
}
|
|
|
|
static inline void
|
|
sockaddr_in6_init(struct sockaddr_in6 *sin6, const struct in6_addr *addr,
|
|
in_port_t port, uint32_t flowinfo, uint32_t scope_id)
|
|
{
|
|
sin6->sin6_family = AF_INET6;
|
|
sin6->sin6_len = sizeof(*sin6);
|
|
sockaddr_in6_init1(sin6, addr, port, flowinfo, scope_id);
|
|
}
|
|
|
|
static inline struct sockaddr *
|
|
sockaddr_in6_alloc(const struct in6_addr *addr, in_port_t port,
|
|
uint32_t flowinfo, uint32_t scope_id, int flags)
|
|
{
|
|
struct sockaddr *sa;
|
|
|
|
if ((sa = sockaddr_alloc(AF_INET6, sizeof(struct sockaddr_in6),
|
|
flags)) == NULL)
|
|
return NULL;
|
|
|
|
sockaddr_in6_init1(satosin6(sa), addr, port, flowinfo, scope_id);
|
|
|
|
return sa;
|
|
}
|
|
#endif /* _KERNEL */
|
|
|
|
#if defined(_NETBSD_SOURCE)
|
|
|
|
#include <machine/ansi.h>
|
|
|
|
#ifdef _BSD_SIZE_T_
|
|
typedef _BSD_SIZE_T_ size_t;
|
|
#define _SIZE_T
|
|
#undef _BSD_SIZE_T_
|
|
#endif
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
__BEGIN_DECLS
|
|
struct cmsghdr;
|
|
|
|
void in6_sin6_2_sin(struct sockaddr_in *, struct sockaddr_in6 *);
|
|
void in6_sin_2_v4mapsin6(const struct sockaddr_in *, struct sockaddr_in6 *);
|
|
void in6_sin6_2_sin_in_sock(struct sockaddr *);
|
|
void in6_sin_2_v4mapsin6_in_sock(struct sockaddr **);
|
|
|
|
#define INET6_IS_ADDR_LINKLOCAL 1
|
|
#define INET6_IS_ADDR_MC_LINKLOCAL 2
|
|
#define INET6_IS_ADDR_SITELOCAL 4
|
|
void inet6_getscopeid(struct sockaddr_in6 *, int);
|
|
void inet6_putscopeid(struct sockaddr_in6 *, int);
|
|
|
|
extern int inet6_option_space(int);
|
|
extern int inet6_option_init(void *, struct cmsghdr **, int);
|
|
extern int inet6_option_append(struct cmsghdr *, const uint8_t *,
|
|
int, int);
|
|
extern uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int);
|
|
extern int inet6_option_next(const struct cmsghdr *, uint8_t **);
|
|
extern int inet6_option_find(const struct cmsghdr *, uint8_t **, int);
|
|
|
|
extern size_t inet6_rthdr_space(int, int);
|
|
extern struct cmsghdr *inet6_rthdr_init(void *, int);
|
|
extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *,
|
|
unsigned int);
|
|
extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int);
|
|
#if 0 /* not implemented yet */
|
|
extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *);
|
|
#endif
|
|
extern int inet6_rthdr_segments(const struct cmsghdr *);
|
|
extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int);
|
|
extern int inet6_rthdr_getflags(const struct cmsghdr *, int);
|
|
|
|
extern int inet6_opt_init(void *, socklen_t);
|
|
extern int inet6_opt_append(void *, socklen_t, int, uint8_t,
|
|
socklen_t, uint8_t, void **);
|
|
extern int inet6_opt_finish(void *, socklen_t, int);
|
|
extern int inet6_opt_set_val(void *, int, void *, socklen_t);
|
|
|
|
extern int inet6_opt_next(void *, socklen_t, int, uint8_t *,
|
|
socklen_t *, void **);
|
|
extern int inet6_opt_find(void *, socklen_t, int, uint8_t,
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socklen_t *, void **);
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extern int inet6_opt_get_val(void *, int, void *, socklen_t);
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extern socklen_t inet6_rth_space(int, int);
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extern void *inet6_rth_init(void *, socklen_t, int, int);
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extern int inet6_rth_add(void *, const struct in6_addr *);
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extern int inet6_rth_reverse(const void *, void *);
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extern int inet6_rth_segments(const void *);
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extern struct in6_addr *inet6_rth_getaddr(const void *, int);
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__END_DECLS
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#endif /* _NETBSD_SOURCE */
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#if defined(_KERNEL) || defined(_TEST)
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int in6_print(char *, size_t, const struct in6_addr *);
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#define IN6_PRINT(b, a) (in6_print((b), sizeof(b), (a)), (b))
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int sin6_print(char *, size_t, const void *);
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#endif
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#endif /* !_NETINET6_IN6_H_ */
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