425 lines
17 KiB
C
425 lines
17 KiB
C
/* $FreeBSD: src/sys/netinet6/in6.h,v 1.19 2002/04/19 04:46:22 suz Exp $ */
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/* $KAME: in6.h,v 1.89 2001/05/27 13:28:35 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, 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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/* Copied from Linux, modified for Phoenix-RTOS. */
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#ifndef _NETINET6_IN6_H
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#define _NETINET6_IN6_H
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#include <phoenix/netinet6.h>
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#include <sys/types.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 "20010528/FreeBSD"
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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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#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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/* Socket address for IPv6 */
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#ifndef _XOPEN_SOURCE
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#define SIN6_LEN
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#endif
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/* Definition of some useful macros to handle IP6 addresses */
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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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/*
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* Equality
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* NOTE: Some of kernel programming environment (for example, openbsd/sparc)
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* does not supply memcmp(). For userland memcmp() is preferred as it is
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* in ANSI standard.
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*/
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#define IN6_ARE_ADDR_EQUAL(a, b) (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
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/* Unspecified */
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#define IN6_IS_ADDR_UNSPECIFIED(a) \
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((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
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/* Loopback */
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#define IN6_IS_ADDR_LOOPBACK(a) \
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((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1)))
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/* IPv4 compatible */
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#define IN6_IS_ADDR_V4COMPAT(a) \
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((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1)))
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/* Mapped */
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#define IN6_IS_ADDR_V4MAPPED(a) \
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((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
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(*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
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/* KAME Scope Values */
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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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/*
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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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/* Multicast */
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#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
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#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
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/* Multicast Scope */
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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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/* IP6 route structure */
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#ifndef _XOPEN_SOURCE
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struct route_in6 {
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struct rtentry *ro_rt;
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struct sockaddr_in6 ro_dst;
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};
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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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#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_char; set/get IP6 multicast i/f */
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#define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */
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#define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */
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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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#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
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/* RFC2292 options */
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#define IPV6_PKTINFO 19 /* bool; send/recv if, src/dst addr */
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#define IPV6_HOPLIMIT 20 /* bool; hop limit */
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#define IPV6_NEXTHOP 21 /* bool; next hop addr */
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#define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */
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#define IPV6_DSTOPTS 23 /* bool; destination option */
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#define IPV6_RTHDR 24 /* bool; routing header */
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#define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
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#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
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#define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */
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#define IPV6_BINDV6ONLY IPV6_V6ONLY
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#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */
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#define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */
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#define IPV6_FW_ADD 30 /* add a firewall rule to chain */
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#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */
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#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */
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#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */
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#define IPV6_FW_GET 34 /* get entire firewall rule chain */
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/* to define items, should talk with KAME guys first, for *BSD compatibility */
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#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */
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#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */
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#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
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/* Defaults and limits for options */
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#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */
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#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
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/* Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. */
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struct ipv6_mreq {
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struct in6_addr ipv6mr_multiaddr;
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unsigned int ipv6mr_interface;
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};
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/* IPV6_PKTINFO: Packet information(RFC2292 sec 5) */
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struct in6_pktinfo {
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struct in6_addr ipi6_addr; /* src/dst IPv6 address */
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unsigned int ipi6_ifindex; /* send/recv interface index */
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};
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/*
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* Argument for IPV6_PORTRANGE:
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* - which range to search when port is unspecified at bind() or connect()
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*/
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#define IPV6_PORTRANGE_DEFAULT 0 /* default range */
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#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
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#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
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#ifndef _XOPEN_SOURCE
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/*
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* Definitions for inet6 sysctl operations.
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*
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* Third level is protocol number.
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* Fourth level is desired variable within that protocol.
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*/
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#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
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#define CTL_IPV6PROTO_NAMES { \
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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{ 0, 0 }, \
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{ "tcp6", CTLTYPE_NODE }, \
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{ 0, 0 }, \
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{ 0, 0 }, \
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{ 0, 0 }, \
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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{ 0, 0 }, \
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{ 0, 0 }, \
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{ "udp6", CTLTYPE_NODE }, \
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{ 0, 0 }, \
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{ 0, 0 }, \
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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{ 0, 0 }, \
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{ "ip6", CTLTYPE_NODE }, \
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{ 0, 0 }, \
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{ 0, 0 }, \
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{ 0, 0 }, \
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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{ 0, 0 }, \
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{ "ipsec6", CTLTYPE_NODE }, \
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{ 0, 0 }, \
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{ 0, 0 }, \
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{ 0, 0 }, \
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{ 0, 0 }, \
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{ 0, 0 }, \
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{ 0, 0 }, \
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{ "icmp6", CTLTYPE_NODE }, \
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{ 0, 0 }, \
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
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{ 0, 0 }, \
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{ 0, 0 }, \
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{ 0, 0 }, \
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{ "pim6", CTLTYPE_NODE }, \
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}
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/*
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* Names for IP sysctl objects
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*/
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#define IPV6CTL_FORWARDING 1 /* act as router */
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#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding */
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#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
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#ifdef notyet
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#define IPV6CTL_DEFMTU 4 /* default MTU */
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#endif
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#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
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#define IPV6CTL_STATS 6 /* stats */
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#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
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#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
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#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
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#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
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#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
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#define IPV6CTL_ACCEPT_RTADV 12
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#define IPV6CTL_KEEPFAITH 13
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#define IPV6CTL_LOG_INTERVAL 14
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#define IPV6CTL_HDRNESTLIMIT 15
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#define IPV6CTL_DAD_COUNT 16
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#define IPV6CTL_AUTO_FLOWLABEL 17
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#define IPV6CTL_DEFMCASTHLIM 18
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#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
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#define IPV6CTL_KAME_VERSION 20
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#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */
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#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
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#define IPV6CTL_V6ONLY 24
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#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */
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#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */
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#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */
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#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */
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#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */
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#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */
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#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */
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#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */
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/* New entries should be added here from current IPV6CTL_MAXID value. */
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/* to define items, should talk with KAME guys first, for *BSD compatibility */
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#define IPV6CTL_MAXID 37
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#endif /* !_XOPEN_SOURCE */
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/* Redefinition of mbuf flags */
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#define M_AUTHIPHDR M_PROTO2
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#define M_DECRYPTED M_PROTO3
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#define M_LOOP M_PROTO4
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#define M_AUTHIPDGM M_PROTO5
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struct cmsghdr;
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int inet6_option_space(int);
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int inet6_option_init(void *, struct cmsghdr **, int);
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int inet6_option_append(struct cmsghdr *, const uint8_t *, int, int);
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uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int);
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int inet6_option_next(const struct cmsghdr *, uint8_t **);
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int inet6_option_find(const struct cmsghdr *, uint8_t **, int);
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size_t inet6_rthdr_space(int, int);
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struct cmsghdr *inet6_rthdr_init(void *, int);
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int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *, unsigned int);
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int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int);
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int inet6_rthdr_segments(const struct cmsghdr *);
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struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int);
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|
int inet6_rthdr_getflags(const struct cmsghdr *, int);
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int inet6_opt_init(void *, size_t);
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int inet6_opt_append(void *, size_t, int, uint8_t, size_t, uint8_t, void **);
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|
int inet6_opt_finish(void *, size_t, int);
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|
int inet6_opt_set_val(void *, size_t, void *, int);
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int inet6_opt_next(void *, size_t, int, uint8_t *, size_t *, void **);
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int inet6_opt_find(void *, size_t, int, uint8_t, size_t *, void **);
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int inet6_opt_get_val(void *, size_t, void *, int);
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|
size_t inet6_rth_space(int, int);
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void *inet6_rth_init(void *, int, int, int);
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int inet6_rth_add(void *, const struct in6_addr *);
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int inet6_rth_reverse(const void *, void *);
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|
int inet6_rth_segments(const void *);
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struct in6_addr *inet6_rth_getaddr(const void *, int);
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#endif
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