include/netinet6/in6.h
C Header | 808 lines | 535 code | 78 blank | 195 comment | 49 complexity | 35a24a912927f1c7deecf5610dd2f455 MD5 | raw file
Possible License(s): MIT, WTFPL, AGPL-1.0, BSD-3-Clause, GPL-3.0, LGPL-2.0, JSON, 0BSD
- /* $NetBSD: in6.h,v 1.68 2009/09/11 22:06:29 dyoung Exp $ */
- /* $KAME: in6.h,v 1.83 2001/03/29 02:55:07 jinmei Exp $ */
- /*
- * 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. 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 _NETINET6_IN6_H_
- #define _NETINET6_IN6_H_
- #ifndef __KAME_NETINET_IN_H_INCLUDED_
- #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553"
- #endif
- #include <sys/socket.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 "NetBSD-current"
- /*
- * 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.
- */
- #if defined(_NETBSD_SOURCE)
- #define IPV6PORT_RESERVED 1024
- #define IPV6PORT_ANONMIN 49152
- #define IPV6PORT_ANONMAX 65535
- #define IPV6PORT_RESERVEDMIN 600
- #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1)
- #endif
- /*
- * IPv6 address
- */
- 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 */
- };
- #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(_NETBSD_SOURCE)
- #define SIN6_LEN
- #endif
- struct sockaddr_in6 {
- #ifndef __minix
- uint8_t sin6_len; /* length of this struct(socklen_t)*/
- #endif /* !__minix */
- sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */
- in_port_t sin6_port; /* Transport layer port */
- uint32_t sin6_flowinfo; /* IP6 flow information */
- struct in6_addr sin6_addr; /* IP6 address */
- uint32_t sin6_scope_id; /* scope zone index */
- };
- #ifndef __minix
- /*
- * Local definition for masks
- */
- #ifdef _KERNEL /* XXX nonstandard */
- #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
- #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
- #ifdef _KERNEL
- extern const struct sockaddr_in6 sa6_any;
- extern const struct in6_addr in6mask0;
- extern const struct in6_addr in6mask32;
- extern const struct in6_addr in6mask64;
- extern const struct in6_addr in6mask96;
- extern const struct in6_addr in6mask128;
- #endif /* _KERNEL */
- /*
- * Macros started with IPV6_ADDR is KAME local
- */
- #ifdef _KERNEL /* XXX nonstandard */
- #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
- #endif /* !__minix */
- /*
- * 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 }}}
- #define IN6ADDR_NODELOCAL_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 }}}
- extern const struct in6_addr in6addr_any;
- extern const struct in6_addr in6addr_loopback;
- extern const struct in6_addr in6addr_nodelocal_allnodes;
- extern const struct in6_addr in6addr_linklocal_allnodes;
- extern const struct in6_addr in6addr_linklocal_allrouters;
- #define IN6_ARE_ADDR_EQUAL(a, b) \
- (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
- /*
- * Unspecified
- */
- #define IN6_IS_ADDR_UNSPECIFIED(a) \
- ((a)->__u6_addr.__u6_addr32[0] == 0 && \
- (a)->__u6_addr.__u6_addr32[1] == 0 && \
- (a)->__u6_addr.__u6_addr32[2] == 0 && \
- (a)->__u6_addr.__u6_addr32[3] == 0)
- /*
- * Loopback
- */
- #define IN6_IS_ADDR_LOOPBACK(a) \
- ((a)->__u6_addr.__u6_addr32[0] == 0 && \
- (a)->__u6_addr.__u6_addr32[1] == 0 && \
- (a)->__u6_addr.__u6_addr32[2] == 0 && \
- (a)->__u6_addr.__u6_addr32[3] == ntohl(1))
- /*
- * IPv4 compatible
- */
- #define IN6_IS_ADDR_V4COMPAT(a) \
- ((a)->__u6_addr.__u6_addr32[0] == 0 && \
- (a)->__u6_addr.__u6_addr32[1] == 0 && \
- (a)->__u6_addr.__u6_addr32[2] == 0 && \
- (a)->__u6_addr.__u6_addr32[3] != 0 && \
- (a)->__u6_addr.__u6_addr32[3] != ntohl(1))
- /*
- * Mapped
- */
- #define IN6_IS_ADDR_V4MAPPED(a) \
- ((a)->__u6_addr.__u6_addr32[0] == 0 && \
- (a)->__u6_addr.__u6_addr32[1] == 0 && \
- (a)->__u6_addr.__u6_addr32[2] == ntohl(0x0000ffff))
- /*
- * 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_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)
- #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_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_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_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_EMBEDDABLE(__a) \
- (IN6_IS_SCOPE_LINKLOCAL(__a) || IN6_IS_ADDR_MC_INTFACELOCAL(__a))
- #define IFA6_IS_DEPRECATED(a) \
- ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \
- (u_int32_t)((time_second - (a)->ia6_updatetime)) > \
- (a)->ia6_lifetime.ia6t_pltime)
- #define IFA6_IS_INVALID(a) \
- ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \
- (u_int32_t)((time_second - (a)->ia6_updatetime)) > \
- (a)->ia6_lifetime.ia6t_vltime)
- #endif
- #ifndef __minix
- /*
- * 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 0
- /* These are deprecated non-standard options which are no longer supported. */
- #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
- #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */
- #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 multicast loopback */
- #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */
- #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */
- #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */
- #if defined(_NETBSD_SOURCE)
- #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
- #endif
- /* RFC2292 options */
- #ifdef _KERNEL
- #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */
- #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */
- #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */
- #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */
- #define IPV6_2292DSTOPTS 23 /* bool; destination option */
- #define IPV6_2292RTHDR 24 /* bool; routing header */
- #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
- #endif
- #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
- #define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */
- #if 1 /* IPSEC */
- #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */
- #endif
- #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */
- /* new socket options introduced in RFC3542 */
- #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */
- #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */
- #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */
- #define IPV6_RECVRTHDR 38 /* bool; recv routing header */
- #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */
- #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */
- #ifdef _KERNEL
- #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */
- #endif
- #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */
- #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */
- #define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt),
- 4 bytes int; MTU notification (cmsg) */
- /* more new socket options introduced in RFC3542 */
- #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */
- #define IPV6_HOPLIMIT 47 /* int; send hop limit */
- #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */
- #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */
- #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */
- #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */
- #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */
- #ifdef _KERNEL
- #define IPV6_OTCLASS 58 /* u_int8_t; send traffic class value */
- #endif
- #define IPV6_TCLASS 61 /* int; send traffic class value */
- #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */
- /* to define items, should talk with KAME guys first, for *BSD compatibility */
- #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */
- #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */
- #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
- /*
- * Defaults and limits for options
- */
- #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */
- #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
- /*
- * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
- */
- struct ipv6_mreq {
- struct in6_addr ipv6mr_multiaddr;
- unsigned int ipv6mr_interface;
- };
- /*
- * IPV6_PKTINFO: Packet information(RFC2292 sec 5)
- */
- struct in6_pktinfo {
- struct in6_addr ipi6_addr; /* src/dst IPv6 address */
- unsigned int ipi6_ifindex; /* send/recv interface index */
- };
- /*
- * Control structure for IPV6_RECVPATHMTU socket option.
- */
- struct ip6_mtuinfo {
- struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */
- uint32_t ip6m_mtu;
- };
- /*
- * Argument for IPV6_PORTRANGE:
- * - which range to search when port is unspecified at bind() or connect()
- */
- #define IPV6_PORTRANGE_DEFAULT 0 /* default range */
- #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
- #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
- #if defined(_NETBSD_SOURCE)
- /*
- * Definitions for inet6 sysctl operations.
- *
- * Third level is protocol number.
- * Fourth level is desired variable within that protocol.
- */
- #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
- #define CTL_IPV6PROTO_NAMES { \
- { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
- { 0, 0 }, \
- { "tcp6", CTLTYPE_NODE }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { "udp6", CTLTYPE_NODE }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
- { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
- { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
- { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
- { 0, 0 }, \
- { "ip6", CTLTYPE_NODE }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
- { 0, 0 }, \
- { "ipsec6", CTLTYPE_NODE }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { "icmp6", CTLTYPE_NODE }, \
- { 0, 0 }, \
- { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
- { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
- { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
- { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
- { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
- { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
- { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
- { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { "pim6", CTLTYPE_NODE }, \
- }
- /*
- * Names for IP sysctl objects
- */
- #define IPV6CTL_FORWARDING 1 /* act as router */
- #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/
- #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
- #ifdef notyet
- #define IPV6CTL_DEFMTU 4 /* default MTU */
- #endif
- #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
- #define IPV6CTL_STATS 6 /* stats */
- #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
- #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
- #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
- #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
- #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
- #define IPV6CTL_ACCEPT_RTADV 12
- #define IPV6CTL_KEEPFAITH 13
- #define IPV6CTL_LOG_INTERVAL 14
- #define IPV6CTL_HDRNESTLIMIT 15
- #define IPV6CTL_DAD_COUNT 16
- #define IPV6CTL_AUTO_FLOWLABEL 17
- #define IPV6CTL_DEFMCASTHLIM 18
- #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
- #define IPV6CTL_KAME_VERSION 20
- #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */
- #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
- /* 23: reserved */
- #define IPV6CTL_V6ONLY 24
- /* 25 to 27: reserved */
- #define IPV6CTL_ANONPORTMIN 28 /* minimum ephemeral port */
- #define IPV6CTL_ANONPORTMAX 29 /* maximum ephemeral port */
- #define IPV6CTL_LOWPORTMIN 30 /* minimum reserved port */
- #define IPV6CTL_LOWPORTMAX 31 /* maximum reserved port */
- /* 32 to 38: reserved */
- #define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */
- /* 40: reserved */
- #define IPV6CTL_MAXFRAGS 41 /* max fragments */
- #define IPV6CTL_IFQ 42 /* ip6intrq node */
- /* 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 43
- #define IPV6CTL_NAMES { \
- { 0, 0 }, \
- { "forwarding", CTLTYPE_INT }, \
- { "redirect", CTLTYPE_INT }, \
- { "hlim", CTLTYPE_INT }, \
- { "mtu", CTLTYPE_INT }, \
- { "forwsrcrt", CTLTYPE_INT }, \
- { "stats", CTLTYPE_STRUCT }, \
- { 0, 0 }, \
- { "mrtproto", CTLTYPE_INT }, \
- { "maxfragpackets", CTLTYPE_INT }, \
- { "sourcecheck", CTLTYPE_INT }, \
- { "sourcecheck_logint", CTLTYPE_INT }, \
- { "accept_rtadv", CTLTYPE_INT }, \
- { "keepfaith", CTLTYPE_INT }, \
- { "log_interval", CTLTYPE_INT }, \
- { "hdrnestlimit", CTLTYPE_INT }, \
- { "dad_count", CTLTYPE_INT }, \
- { "auto_flowlabel", CTLTYPE_INT }, \
- { "defmcasthlim", CTLTYPE_INT }, \
- { "gifhlim", CTLTYPE_INT }, \
- { "kame_version", CTLTYPE_STRING }, \
- { "use_deprecated", CTLTYPE_INT }, \
- { "rr_prune", CTLTYPE_INT }, \
- { 0, 0 }, \
- { "v6only", CTLTYPE_INT }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { "anonportmin", CTLTYPE_INT }, \
- { "anonportmax", CTLTYPE_INT }, \
- { "lowportmin", CTLTYPE_INT }, \
- { "lowportmax", CTLTYPE_INT }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { 0, 0 }, \
- { "maxfrags", CTLTYPE_INT }, \
- { "ifq", CTLTYPE_NODE }, \
- }
- #endif /* _NETBSD_SOURCE */
- #ifdef _KERNEL
- struct cmsghdr;
- /*
- * in6_cksum_phdr:
- *
- * Compute significant parts of the IPv6 checksum pseudo-header
- * for use in a delayed TCP/UDP checksum calculation.
- *
- * Args:
- *
- * src Source IPv6 address
- * dst Destination IPv6 address
- * len htonl(proto-hdr-len)
- * nxt htonl(next-proto-number)
- *
- * NOTE: We expect the src and dst addresses to be 16-bit
- * aligned!
- */
- static __inline u_int16_t __unused
- in6_cksum_phdr(const struct in6_addr *src, const struct in6_addr *dst,
- u_int32_t len, u_int32_t nxt)
- {
- u_int32_t sum = 0;
- const u_int16_t *w;
- /*LINTED*/
- w = (const u_int16_t *) src;
- sum += w[0];
- if (!IN6_IS_SCOPE_LINKLOCAL(src))
- sum += w[1];
- sum += w[2]; sum += w[3]; sum += w[4]; sum += w[5];
- sum += w[6]; sum += w[7];
- /*LINTED*/
- w = (const u_int16_t *) dst;
- sum += w[0];
- if (!IN6_IS_SCOPE_LINKLOCAL(dst))
- sum += w[1];
- sum += w[2]; sum += w[3]; sum += w[4]; sum += w[5];
- sum += w[6]; sum += w[7];
- sum += (u_int16_t)(len >> 16) + (u_int16_t)(len /*& 0xffff*/);
- sum += (u_int16_t)(nxt >> 16) + (u_int16_t)(nxt /*& 0xffff*/);
- sum = (u_int16_t)(sum >> 16) + (u_int16_t)(sum /*& 0xffff*/);
- if (sum > 0xffff)
- sum -= 0xffff;
- return (sum);
- }
- struct mbuf;
- struct ifnet;
- int sockaddr_in6_cmp(const struct sockaddr *, const struct sockaddr *);
- struct sockaddr *sockaddr_in6_externalize(struct sockaddr *, socklen_t,
- const struct sockaddr *);
- int in6_cksum(struct mbuf *, u_int8_t, u_int32_t, u_int32_t);
- void in6_delayed_cksum(struct mbuf *);
- int in6_localaddr(const struct in6_addr *);
- int in6_addrscope(const struct in6_addr *);
- struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *);
- extern void in6_if_up(struct ifnet *);
- #ifndef __FreeBSD__
- extern int in6_src_sysctl(void *, size_t *, void *, size_t);
- #endif
- extern void addrsel_policy_init(void);
- extern u_char ip6_protox[];
- #define satosin6(sa) ((struct sockaddr_in6 *)(sa))
- #define satocsin6(sa) ((const struct sockaddr_in6 *)(sa))
- #define sin6tosa(sin6) ((struct sockaddr *)(sin6))
- #define sin6tocsa(sin6) ((const struct sockaddr *)(sin6))
- #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
- static inline void
- sockaddr_in6_init1(struct sockaddr_in6 *sin6, const struct in6_addr *addr,
- in_port_t port, uint32_t flowinfo, uint32_t scope_id)
- {
- sin6->sin6_port = port;
- sin6->sin6_flowinfo = flowinfo;
- sin6->sin6_addr = *addr;
- sin6->sin6_scope_id = scope_id;
- }
- static inline void
- sockaddr_in6_init(struct sockaddr_in6 *sin6, const struct in6_addr *addr,
- in_port_t port, uint32_t flowinfo, uint32_t scope_id)
- {
- sin6->sin6_family = AF_INET6;
- sin6->sin6_len = sizeof(*sin6);
- sockaddr_in6_init1(sin6, addr, port, flowinfo, scope_id);
- }
- static inline struct sockaddr *
- sockaddr_in6_alloc(const struct in6_addr *addr, in_port_t port,
- uint32_t flowinfo, uint32_t scope_id, int flags)
- {
- struct sockaddr *sa;
- if ((sa = sockaddr_alloc(AF_INET6, sizeof(struct sockaddr_in6),
- flags)) == NULL)
- return NULL;
- sockaddr_in6_init1(satosin6(sa), addr, port, flowinfo, scope_id);
- return sa;
- }
- #endif /* _KERNEL */
- #if defined(_NETBSD_SOURCE)
- #include <machine/ansi.h>
- #ifdef _BSD_SIZE_T_
- typedef _BSD_SIZE_T_ size_t;
- #define _SIZE_T
- #undef _BSD_SIZE_T_
- #endif
- #include <sys/cdefs.h>
- __BEGIN_DECLS
- struct cmsghdr;
- void in6_sin6_2_sin(struct sockaddr_in *, struct sockaddr_in6 *);
- void in6_sin_2_v4mapsin6(struct sockaddr_in *, struct sockaddr_in6 *);
- void in6_sin6_2_sin_in_sock(struct sockaddr *);
- void in6_sin_2_v4mapsin6_in_sock(struct sockaddr **);
- 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 /* _NETBSD_SOURCE */
- #endif /* !__minix */
- #endif /* !_NETINET6_IN6_H_ */