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gems-kernel/source/THIRDPARTY/xnu/bsd/netinet6/in6.h

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add darwin/xnu functionality
2024-06-03 11:29:39 -05:00
/*
* Copyright (c) 2008-2020 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Copyright (c) 1982, 1986, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)in.h 8.3 (Berkeley) 1/3/94
*/
#ifndef DRIVERKIT
#ifndef __KAME_NETINET_IN_H_INCLUDED_
#error "do not include netinet6/in6.h directly, include netinet/in.h. " \
" see RFC2553"
#endif
#endif /* DRIVERKIT */
#ifndef _NETINET6_IN6_H_
#define _NETINET6_IN6_H_
#ifndef DRIVERKIT
#include <sys/appleapiopts.h>
#else
#include <sys/_types/_in_port_t.h>
#endif /* DRIVERKIT */
#include <sys/_types.h>
#include <sys/_types/_sa_family_t.h>
/*
* Identification of the network protocol stack
* for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
* has the table of implementation/integration differences.
*/
#define __KAME__
#define __KAME_VERSION "2009/apple-darwin"
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
/*
* Local port number conventions:
*
* Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
* unless a kernel is compiled with IPNOPRIVPORTS defined.
*
* When a user does a bind(2) or connect(2) with a port number of zero,
* a non-conflicting local port address is chosen.
*
* The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
* that is settable by sysctl(3); net.inet.ip.anonportmin and
* net.inet.ip.anonportmax respectively.
*
* A user may set the IPPROTO_IP option IP_PORTRANGE to change this
* default assignment range.
*
* The value IP_PORTRANGE_DEFAULT causes the default behavior.
*
* The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
* and exists only for FreeBSD compatibility purposes.
*
* The value IP_PORTRANGE_LOW changes the range to the "low" are
* that is (by convention) restricted to privileged processes.
* This convention is based on "vouchsafe" principles only.
* It is only secure if you trust the remote host to restrict these ports.
* The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
*/
#define IPV6PORT_RESERVED 1024
#define IPV6PORT_ANONMIN 49152
#define IPV6PORT_ANONMAX 65535
#define IPV6PORT_RESERVEDMIN 600
#define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1)
#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
/*
* IPv6 address
*/
typedef struct in6_addr {
union {
__uint8_t __u6_addr8[16];
__uint16_t __u6_addr16[8];
__uint32_t __u6_addr32[4];
} __u6_addr; /* 128-bit IP6 address */
} in6_addr_t;
#define s6_addr __u6_addr.__u6_addr8
#ifdef KERNEL /* XXX nonstandard */
#define s6_addr8 __u6_addr.__u6_addr8
#define s6_addr16 __u6_addr.__u6_addr16
#define s6_addr32 __u6_addr.__u6_addr32
#endif
#define INET6_ADDRSTRLEN 46
/*
* Socket address for IPv6
*/
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define SIN6_LEN
#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
struct sockaddr_in6 {
__uint8_t sin6_len; /* length of this struct(sa_family_t) */
sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */
in_port_t sin6_port; /* Transport layer port # (in_port_t) */
__uint32_t sin6_flowinfo; /* IP6 flow information */
struct in6_addr sin6_addr; /* IP6 address */
__uint32_t sin6_scope_id; /* scope zone index */
};
#ifdef KERNEL /* XXX nonstandard */
/*
* Local definition for masks
*/
#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
#define IN6MASK7 {{{ 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
#define IN6MASK8 {{{ 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
#define IN6MASK16 {{{ 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
#endif
#ifndef XNU_PLATFORM_DriverKit
#ifdef KERNEL /* XXX nonstandard */
/*
* Macros started with IPV6_ADDR is KAME local
*/
#if BYTE_ORDER == BIG_ENDIAN
#define IPV6_ADDR_INT32_ONE 1
#define IPV6_ADDR_INT32_TWO 2
#define IPV6_ADDR_INT32_MNL 0xff010000
#define IPV6_ADDR_INT32_MLL 0xff020000
#define IPV6_ADDR_INT32_SMP 0x0000ffff
#define IPV6_ADDR_INT16_ULL 0xfe80
#define IPV6_ADDR_INT16_USL 0xfec0
#define IPV6_ADDR_INT16_MLL 0xff02
#elif BYTE_ORDER == LITTLE_ENDIAN
#define IPV6_ADDR_INT32_ONE 0x01000000
#define IPV6_ADDR_INT32_TWO 0x02000000
#define IPV6_ADDR_INT32_MNL 0x000001ff
#define IPV6_ADDR_INT32_MLL 0x000002ff
#define IPV6_ADDR_INT32_SMP 0xffff0000
#define IPV6_ADDR_INT16_ULL 0x80fe
#define IPV6_ADDR_INT16_USL 0xc0fe
#define IPV6_ADDR_INT16_MLL 0x02ff
#endif
#endif
/*
* Definition of some useful macros to handle IP6 addresses
*/
#define IN6ADDR_ANY_INIT \
{{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
#define IN6ADDR_LOOPBACK_INIT \
{{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define IN6ADDR_NODELOCAL_ALLNODES_INIT \
{{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
#define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \
{{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
{{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
{{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
#define IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT \
{{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16 }}}
#define IN6ADDR_V4MAPPED_INIT \
{{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
#define IN6ADDR_MULTICAST_PREFIX IN6MASK8
#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
extern const struct in6_addr in6addr_any;
extern const struct in6_addr in6addr_loopback;
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
extern const struct in6_addr in6addr_nodelocal_allnodes;
extern const struct in6_addr in6addr_linklocal_allnodes;
extern const struct in6_addr in6addr_linklocal_allrouters;
extern const struct in6_addr in6addr_linklocal_allv2routers;
#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
/*
* Equality
* NOTE: Some of kernel programming environment (for example, openbsd/sparc)
* does not supply memcmp(). For userland memcmp() is preferred as it is
* in ANSI standard.
*/
#ifdef KERNEL
#define IN6_ARE_ADDR_EQUAL(a, b) \
(bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], \
sizeof (struct in6_addr)) == 0)
#else
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define IN6_ARE_ADDR_EQUAL(a, b) \
(memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof (struct in6_addr)) \
== 0)
#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
#endif
#ifdef KERNEL /* non standard */
/* see if two addresses are equal in a scope-conscious manner. */
#define SA6_ARE_ADDR_EQUAL(a, b) \
(((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \
((a)->sin6_scope_id == (b)->sin6_scope_id)) && \
(bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof (struct in6_addr)) == 0))
#endif
/*
* Unspecified
*/
#define IN6_IS_ADDR_UNSPECIFIED(a) \
((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
(*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
(*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
(*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
/*
* Loopback
*/
#define IN6_IS_ADDR_LOOPBACK(a) \
((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
(*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
(*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
(*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1)))
/*
* IPv4 compatible
*/
#define IN6_IS_ADDR_V4COMPAT(a) \
((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
(*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
(*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
(*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \
(*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1)))
/*
* Mapped
*/
#define IN6_IS_ADDR_V4MAPPED(a) \
((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
(*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
(*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == \
ntohl(0x0000ffff)))
/*
* 6to4
*/
#define IN6_IS_ADDR_6TO4(x) (ntohs((x)->s6_addr16[0]) == 0x2002)
/*
* KAME Scope Values
*/
#ifdef KERNEL /* XXX nonstandard */
#define IPV6_ADDR_SCOPE_NODELOCAL 0x01
#define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
#define IPV6_ADDR_SCOPE_SITELOCAL 0x05
#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
#define IPV6_ADDR_SCOPE_GLOBAL 0x0e
#else
#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
#define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02
#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05
#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e
#endif
/*
* Unicast Scope
* Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
*/
#define IN6_IS_ADDR_LINKLOCAL(a) \
(((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
#define IN6_IS_ADDR_SITELOCAL(a) \
(((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
/*
* Multicast
*/
#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
#define IPV6_ADDR_MC_FLAGS(a) ((a)->s6_addr[1] & 0xf0)
#define IPV6_ADDR_MC_FLAGS_TRANSIENT 0x10
#define IPV6_ADDR_MC_FLAGS_PREFIX 0x20
#define IPV6_ADDR_MC_FLAGS_UNICAST_BASED (IPV6_ADDR_MC_FLAGS_TRANSIENT | IPV6_ADDR_MC_FLAGS_PREFIX)
#define IN6_IS_ADDR_UNICAST_BASED_MULTICAST(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(IPV6_ADDR_MC_FLAGS(a) == IPV6_ADDR_MC_FLAGS_UNICAST_BASED))
/*
* Unique Local IPv6 Unicast Addresses (per RFC 4193)
*/
#define IN6_IS_ADDR_UNIQUE_LOCAL(a) \
(((a)->s6_addr[0] == 0xfc) || ((a)->s6_addr[0] == 0xfd))
#ifdef KERNEL /* XXX nonstandard */
#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
#else
#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
#endif
/*
* Multicast Scope
*/
#ifdef KERNEL /* refers nonstandard items */
#define IN6_IS_ADDR_MC_UNICAST_BASED_LINKLOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(IPV6_ADDR_MC_FLAGS(a) == IPV6_ADDR_MC_FLAGS_UNICAST_BASED) && \
(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
#define IN6_IS_ADDR_MC_NODELOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
#define IN6_IS_ADDR_MC_INTFACELOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL))
#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(IPV6_ADDR_MC_FLAGS(a) != IPV6_ADDR_MC_FLAGS_UNICAST_BASED) && \
(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
#define IN6_IS_ADDR_MC_SITELOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
#define IN6_IS_ADDR_MC_GLOBAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
#else
#define IN6_IS_ADDR_MC_NODELOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(IPV6_ADDR_MC_FLAGS(a) != IPV6_ADDR_MC_FLAGS_UNICAST_BASED) && \
(__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
#define IN6_IS_ADDR_MC_SITELOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
#define IN6_IS_ADDR_MC_GLOBAL(a) \
(IN6_IS_ADDR_MULTICAST(a) && \
(__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
#endif
#ifdef KERNEL /* nonstandard */
/*
* KAME Scope
*/
#define IN6_IS_SCOPE_LINKLOCAL(a) \
((IN6_IS_ADDR_LINKLOCAL(a)) || \
(IN6_IS_ADDR_MC_LINKLOCAL(a)))
#define IN6_IS_SCOPE_EMBED(a) \
((IN6_IS_ADDR_LINKLOCAL(a)) || \
(IN6_IS_ADDR_MC_LINKLOCAL(a)) || \
(IN6_IS_ADDR_MC_INTFACELOCAL(a)))
#define IFA6_IS_DEPRECATED(a, t) \
((a)->ia6_lifetime.ia6ti_preferred != 0 && \
(a)->ia6_lifetime.ia6ti_preferred < (t))
#define IFA6_IS_INVALID(a, t) \
((a)->ia6_lifetime.ia6ti_expire != 0 && \
(a)->ia6_lifetime.ia6ti_expire < (t))
#endif /* KERNEL */
/*
* Options for use with [gs]etsockopt at the IPV6 level.
* First word of comment is data type; bool is stored in int.
*/
/* no hdrincl */
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
/*
* RFC 3542 define the following socket options in a manner incompatible
* with RFC 2292:
* IPV6_PKTINFO
* IPV6_HOPLIMIT
* IPV6_NEXTHOP
* IPV6_HOPOPTS
* IPV6_DSTOPTS
* IPV6_RTHDR
*
* To use the new IPv6 Sockets options introduced by RFC 3542
* the constant __APPLE_USE_RFC_3542 must be defined before
* including <netinet/in.h>
*
* To use the old IPv6 Sockets options from RFC 2292
* the constant __APPLE_USE_RFC_2292 must be defined before
* including <netinet/in.h>
*
* Note that eventually RFC 3542 is going to be the
* default and RFC 2292 will be obsolete.
*/
#ifdef BSD_KERNEL_PRIVATE
#define __APPLE_USE_RFC_3542 1
#endif /* BSD_KERNEL_PRIVATE */
#if defined(__APPLE_USE_RFC_3542) && defined(__APPLE_USE_RFC_2292)
#error "__APPLE_USE_RFC_3542 and __APPLE_USE_RFC_2292 cannot be both defined"
#endif
#if 0 /* the followings are relic in IPv4 and hence are disabled */
#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */
#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */
#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */
#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */
#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */
#endif /* 0 */
#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */
#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */
#define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */
#define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */
#define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 mcast loopback */
#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */
#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */
#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
#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; destinaion option */
#define IPV6_2292RTHDR 24 /* ip6_rthdr: routing header */
/* buf/cmsghdr; set/get IPv6 options [obsoleted by RFC3542] */
#define IPV6_2292PKTOPTIONS 25
#ifdef __APPLE_USE_RFC_2292
#define IPV6_PKTINFO IPV6_2292PKTINFO
#define IPV6_HOPLIMIT IPV6_2292HOPLIMIT
#define IPV6_NEXTHOP IPV6_2292NEXTHOP
#define IPV6_HOPOPTS IPV6_2292HOPOPTS
#define IPV6_DSTOPTS IPV6_2292DSTOPTS
#define IPV6_RTHDR IPV6_2292RTHDR
#define IPV6_PKTOPTIONS IPV6_2292PKTOPTIONS
#endif /* __APPLE_USE_RFC_2292 */
#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
#define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#ifndef KERNEL
#define IPV6_BINDV6ONLY IPV6_V6ONLY
#endif /* KERNEL */
#if 1 /* IPSEC */
#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */
#endif /* 1 */
#define IPV6_FAITH 29 /* deprecated */
#if 1 /* IPV6FIREWALL */
#define IPV6_FW_ADD 30 /* add a firewall rule to chain */
#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */
#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */
#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */
#define IPV6_FW_GET 34 /* get entire firewall rule chain */
#endif /* 1 */
/*
* APPLE: NOTE the value of those 2 options is kept unchanged from
* previous version of darwin/OS X for binary compatibility reasons
* and differ from FreeBSD (values 57 and 61). See below.
*/
#define IPV6_RECVTCLASS 35 /* bool; recv traffic class values */
#define IPV6_TCLASS 36 /* int; send traffic class value */
#ifdef __APPLE_USE_RFC_3542
/* new socket options introduced in RFC3542 */
/*
* ip6_dest; send dst option before rthdr
* APPLE: Value purposely different than FreeBSD (35) to avoid
* collision with definition of IPV6_RECVTCLASS in previous
* darwin implementations
*/
#define IPV6_RTHDRDSTOPTS 57
/*
* bool; recv if, dst addr
* APPLE: Value purposely different than FreeBSD(36) to avoid
* collision with definition of IPV6_TCLASS in previous
* darwin implementations
*/
#define IPV6_RECVPKTINFO 61
#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 */
/*
* mtuinfo; get the current path MTU (sopt), 4 bytes int;
* MTU notification (cmsg)
*/
#define IPV6_PATHMTU 44
#if 0 /* obsoleted during 2292bis -> 3542 */
/* no data; ND reachability confirm (cmsg only/not in of RFC3542) */
#define IPV6_REACHCONF 45
#endif
/* more new socket options introduced in RFC3542 */
#define IPV6_3542PKTINFO 46 /* in6_pktinfo; send if, src addr */
#define IPV6_3542HOPLIMIT 47 /* int; send hop limit */
#define IPV6_3542NEXTHOP 48 /* sockaddr; next hop addr */
#define IPV6_3542HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */
#define IPV6_3542DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */
#define IPV6_3542RTHDR 51 /* ip6_rthdr; send routing header */
#define IPV6_PKTINFO IPV6_3542PKTINFO
#define IPV6_HOPLIMIT IPV6_3542HOPLIMIT
#define IPV6_NEXTHOP IPV6_3542NEXTHOP
#define IPV6_HOPOPTS IPV6_3542HOPOPTS
#define IPV6_DSTOPTS IPV6_3542DSTOPTS
#define IPV6_RTHDR IPV6_3542RTHDR
#define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */
#define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */
/* int; prefer temporary addresses as the source address. */
#define IPV6_PREFER_TEMPADDR 63
/*
* The following option is private; do not use it from user applications.
* It is deliberately defined to the same value as IP_MSFILTER.
*/
#define IPV6_MSFILTER 74 /* struct __msfilterreq; */
#endif /* __APPLE_USE_RFC_3542 */
#define IPV6_BOUND_IF 125 /* int; set/get bound interface */
/* to define items, should talk with KAME guys first, for *BSD compatibility */
#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. */
#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. */
#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 */
/*
* The im6o_membership vector for each socket is now dynamically allocated at
* run-time, bounded by USHRT_MAX, and is reallocated when needed, sized
* according to a power-of-two increment.
*/
#define IPV6_MIN_MEMBERSHIPS 31
#define IPV6_MAX_MEMBERSHIPS 4095
/*
* Default resource limits for IPv6 multicast source filtering.
* These may be modified by sysctl.
*/
#define IPV6_MAX_GROUP_SRC_FILTER 512 /* sources per group */
#define IPV6_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */
/*
* Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
*/
struct ipv6_mreq {
struct in6_addr ipv6mr_multiaddr;
unsigned int ipv6mr_interface;
};
/*
* IPV6_2292PKTINFO: 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 */
/*
* 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 */
/*
* 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 /* deprecated */
#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 deprec addr (RFC2462 5.5.4) */
#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
#if 0 /* obsolete */
#define IPV6CTL_MAPPED_ADDR 23
#endif
#define IPV6CTL_V6ONLY 24
#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */
#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */
#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */
#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses [RFC 4941] */
#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */
#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */
#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */
#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */
#define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */
#define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */
#define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */
#define IPV6CTL_MAXFRAGS 41 /* max fragments */
#define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for mcast? */
#define IPV6CTL_NEIGHBORGCTHRESH 46
#define IPV6CTL_MAXIFPREFIXES 47
#define IPV6CTL_MAXIFDEFROUTERS 48
#define IPV6CTL_MAXDYNROUTES 49
#define ICMPV6CTL_ND6_ONLINKNSRFC4861 50
#define IPV6CTL_ULA_USETEMPADDR 51
/* 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 51
#ifndef KERNEL
__BEGIN_DECLS
struct cmsghdr;
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, socklen_t *,
void **);
extern int inet6_opt_get_val(void *, int, void *, socklen_t);
extern socklen_t inet6_rth_space(int, int);
extern void *inet6_rth_init(void *, socklen_t, int, int);
extern int inet6_rth_add(void *, const struct in6_addr *);
extern int inet6_rth_reverse(const void *, void *);
extern int inet6_rth_segments(const void *);
extern struct in6_addr *inet6_rth_getaddr(const void *, int);
__END_DECLS
#endif /* !KERNEL */
#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
#endif /* XNU_PLATFORM_DriverKit */
#endif /* !_NETINET6_IN6_H_ */
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