/* * 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 #else #include #endif /* DRIVERKIT */ #include #include /* * 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 * * To use the old IPv6 Sockets options from RFC 2292 * the constant __APPLE_USE_RFC_2292 must be defined before * including * * 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_ */