Jakub Konka 5b813f1a2a Set macOS/iPhoneOS/tvOS/watchOS ABI to none (unspecified) by default
Prior to this change we would assume the ABI for Apple targets to
be GNU which could result in subtle errors in LLVM emitting calls
to non-existent system libc provided functions such as `_sincosf`
which is a GNU extension and as such is not provided by macOS for example.
This would result in linker errors where the linker would not be
able to find the said symbol in `libSystem.tbd`.

With this change, we now correctly identify macOS (and other Apple
platforms) as having ABI `unknown` which translates to unspecified
in LLVM under-the-hood:

```
// main.ll
target triple = "aarch64-unknown-macos-unknown"
```

Note however that we never suffix the target OS with target version
such as `macos11` or `macos12` which means we fail to instruct LLVM
of potential optimisations provided by the OS such as the availability
of function `___sincosf_stret`. I suggest we investigate that in a
follow-up commit.
2022-05-22 17:45:02 +02:00

667 lines
26 KiB
C
Vendored

/*
* Copyright (c) 2008-2018 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 __KAME_NETINET_IN_H_INCLUDED_
#error "do not include netinet6/in6.h directly, include netinet/in.h. " \
" see RFC2553"
#endif
#ifndef _NETINET6_IN6_H_
#define _NETINET6_IN6_H_
#include <sys/appleapiopts.h>
#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
#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 */
};
/*
* 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 }}}
#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.
*/
#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) */
/*
* 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
*/
#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
/*
* 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)
/*
* 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))
#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
/*
* Multicast Scope
*/
#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_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))
/*
* 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.
*/
#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 /* __uint8_t; set/get IP6 multicast i/f */
#define IPV6_MULTICAST_HOPS 10 /* __uint8_t; set/get IP6 multicast hops */
#define IPV6_MULTICAST_LOOP 11 /* __uint8_t; 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)
#define IPV6_BINDV6ONLY IPV6_V6ONLY
#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 */
#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
/* 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
__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 /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
#endif /* !_NETINET6_IN6_H_ */