[444] | 1 | /* $FreeBSD: src/sys/netinet6/in6.h,v 1.19 2002/04/19 04:46:22 suz Exp $ */ |
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| 2 | /* $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ */ |
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| 3 | |
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| 4 | /* |
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| 5 | * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
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| 6 | * All rights reserved. |
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| 7 | * |
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| 8 | * Redistribution and use in source and binary forms, with or without |
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| 9 | * modification, are permitted provided that the following conditions |
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| 10 | * are met: |
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| 11 | * 1. Redistributions of source code must retain the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer. |
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| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 14 | * notice, this list of conditions and the following disclaimer in the |
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| 15 | * documentation and/or other materials provided with the distribution. |
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| 16 | * 3. Neither the name of the project nor the names of its contributors |
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| 17 | * may be used to endorse or promote products derived from this software |
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| 18 | * without specific prior written permission. |
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| 19 | * |
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| 20 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
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| 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
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| 24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 30 | * SUCH DAMAGE. |
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| 31 | */ |
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| 32 | |
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| 33 | /* |
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| 34 | * Copyright (c) 1982, 1986, 1990, 1993 |
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| 35 | * The Regents of the University of California. All rights reserved. |
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| 36 | * |
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| 37 | * Redistribution and use in source and binary forms, with or without |
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| 38 | * modification, are permitted provided that the following conditions |
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| 39 | * are met: |
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| 40 | * 1. Redistributions of source code must retain the above copyright |
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| 41 | * notice, this list of conditions and the following disclaimer. |
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| 42 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 43 | * notice, this list of conditions and the following disclaimer in the |
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| 44 | * documentation and/or other materials provided with the distribution. |
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| 45 | * 3. All advertising materials mentioning features or use of this software |
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| 46 | * must display the following acknowledgement: |
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| 47 | * This product includes software developed by the University of |
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| 48 | * California, Berkeley and its contributors. |
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| 49 | * 4. Neither the name of the University nor the names of its contributors |
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| 50 | * may be used to endorse or promote products derived from this software |
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| 51 | * without specific prior written permission. |
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| 52 | * |
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| 53 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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| 54 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 55 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 56 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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| 57 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 58 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 59 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 60 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 61 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 62 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 63 | * SUCH DAMAGE. |
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| 64 | * |
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| 65 | * @(#)in.h 8.3 (Berkeley) 1/3/94 |
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| 66 | */ |
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| 67 | |
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| 68 | #ifndef __KAME_NETINET_IN_H_INCLUDED_ |
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| 69 | #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" |
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| 70 | #endif |
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| 71 | |
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| 72 | #ifndef _NETINET6_IN6_H_ |
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| 73 | #define _NETINET6_IN6_H_ |
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| 74 | |
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| 75 | #include <sys/types.h> |
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| 76 | |
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| 77 | /* |
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| 78 | * Identification of the network protocol stack |
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| 79 | * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE |
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| 80 | * has the table of implementation/integration differences. |
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| 81 | */ |
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| 82 | #define __KAME__ |
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| 83 | #define __KAME_VERSION "20010528/FreeBSD" |
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| 84 | |
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| 85 | /* |
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| 86 | * Local port number conventions: |
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| 87 | * |
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| 88 | * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), |
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| 89 | * unless a kernel is compiled with IPNOPRIVPORTS defined. |
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| 90 | * |
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| 91 | * When a user does a bind(2) or connect(2) with a port number of zero, |
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| 92 | * a non-conflicting local port address is chosen. |
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| 93 | * |
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| 94 | * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although |
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| 95 | * that is settable by sysctl(3); net.inet.ip.anonportmin and |
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| 96 | * net.inet.ip.anonportmax respectively. |
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| 97 | * |
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| 98 | * A user may set the IPPROTO_IP option IP_PORTRANGE to change this |
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| 99 | * default assignment range. |
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| 100 | * |
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| 101 | * The value IP_PORTRANGE_DEFAULT causes the default behavior. |
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| 102 | * |
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| 103 | * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, |
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| 104 | * and exists only for FreeBSD compatibility purposes. |
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| 105 | * |
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| 106 | * The value IP_PORTRANGE_LOW changes the range to the "low" are |
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| 107 | * that is (by convention) restricted to privileged processes. |
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| 108 | * This convention is based on "vouchsafe" principles only. |
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| 109 | * It is only secure if you trust the remote host to restrict these ports. |
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| 110 | * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. |
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| 111 | */ |
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| 112 | |
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| 113 | #define IPV6PORT_RESERVED 1024 |
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| 114 | #define IPV6PORT_ANONMIN 49152 |
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| 115 | #define IPV6PORT_ANONMAX 65535 |
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| 116 | #define IPV6PORT_RESERVEDMIN 600 |
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| 117 | #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) |
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| 118 | |
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| 119 | /* |
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| 120 | * IPv6 address |
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| 121 | */ |
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| 122 | struct in6_addr { |
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| 123 | union { |
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| 124 | uint8_t __u6_addr8[16]; |
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| 125 | uint16_t __u6_addr16[8]; |
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| 126 | uint32_t __u6_addr32[4]; |
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| 127 | } __u6_addr; /* 128-bit IP6 address */ |
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| 128 | }; |
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| 129 | |
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| 130 | #define s6_addr __u6_addr.__u6_addr8 |
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| 131 | #ifdef _KERNEL /* XXX nonstandard */ |
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| 132 | #define s6_addr8 __u6_addr.__u6_addr8 |
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| 133 | #define s6_addr16 __u6_addr.__u6_addr16 |
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| 134 | #define s6_addr32 __u6_addr.__u6_addr32 |
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| 135 | #endif |
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| 136 | |
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| 137 | #define INET6_ADDRSTRLEN 46 |
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| 138 | |
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| 139 | /* |
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| 140 | * Socket address for IPv6 |
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| 141 | */ |
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| 142 | #ifndef _XOPEN_SOURCE |
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| 143 | #define SIN6_LEN |
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| 144 | #endif |
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| 145 | struct sockaddr_in6 { |
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| 146 | uint8_t sin6_family; /* AF_INET6 (sa_family_t) */ |
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| 147 | uint16_t sin6_port; /* Transport layer port # (in_port_t)*/ |
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| 148 | uint32_t sin6_flowinfo; /* IP6 flow information */ |
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| 149 | struct in6_addr sin6_addr; /* IP6 address */ |
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| 150 | uint32_t sin6_scope_id; /* scope zone index */ |
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| 151 | }; |
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| 152 | |
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| 153 | /* |
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| 154 | * Local definition for masks |
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| 155 | */ |
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| 156 | #ifdef _KERNEL /* XXX nonstandard */ |
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| 157 | #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} |
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| 158 | #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ |
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| 159 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} |
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| 160 | #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ |
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| 161 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} |
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| 162 | #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ |
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| 163 | 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} |
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| 164 | #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ |
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| 165 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} |
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| 166 | #endif |
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| 167 | |
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| 168 | #ifdef _KERNEL |
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| 169 | extern const struct sockaddr_in6 sa6_any; |
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| 170 | |
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| 171 | extern const struct in6_addr in6mask0; |
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| 172 | extern const struct in6_addr in6mask32; |
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| 173 | extern const struct in6_addr in6mask64; |
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| 174 | extern const struct in6_addr in6mask96; |
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| 175 | extern const struct in6_addr in6mask128; |
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| 176 | #endif /* _KERNEL */ |
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| 177 | |
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| 178 | /* |
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| 179 | * Macros started with IPV6_ADDR is KAME local |
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| 180 | */ |
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| 181 | #ifdef _KERNEL /* XXX nonstandard */ |
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| 182 | #if BYTE_ORDER == BIG_ENDIAN |
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| 183 | #define IPV6_ADDR_INT32_ONE 1 |
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| 184 | #define IPV6_ADDR_INT32_TWO 2 |
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| 185 | #define IPV6_ADDR_INT32_MNL 0xff010000 |
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| 186 | #define IPV6_ADDR_INT32_MLL 0xff020000 |
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| 187 | #define IPV6_ADDR_INT32_SMP 0x0000ffff |
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| 188 | #define IPV6_ADDR_INT16_ULL 0xfe80 |
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| 189 | #define IPV6_ADDR_INT16_USL 0xfec0 |
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| 190 | #define IPV6_ADDR_INT16_MLL 0xff02 |
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| 191 | #elif BYTE_ORDER == LITTLE_ENDIAN |
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| 192 | #define IPV6_ADDR_INT32_ONE 0x01000000 |
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| 193 | #define IPV6_ADDR_INT32_TWO 0x02000000 |
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| 194 | #define IPV6_ADDR_INT32_MNL 0x000001ff |
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| 195 | #define IPV6_ADDR_INT32_MLL 0x000002ff |
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| 196 | #define IPV6_ADDR_INT32_SMP 0xffff0000 |
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| 197 | #define IPV6_ADDR_INT16_ULL 0x80fe |
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| 198 | #define IPV6_ADDR_INT16_USL 0xc0fe |
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| 199 | #define IPV6_ADDR_INT16_MLL 0x02ff |
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| 200 | #endif |
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| 201 | #endif |
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| 202 | |
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| 203 | /* |
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| 204 | * Definition of some useful macros to handle IP6 addresses |
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| 205 | */ |
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| 206 | #define IN6ADDR_ANY_INIT \ |
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| 207 | {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ |
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| 208 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} |
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| 209 | #define IN6ADDR_LOOPBACK_INIT \ |
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| 210 | {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ |
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| 211 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} |
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| 212 | #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ |
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| 213 | {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ |
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| 214 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} |
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| 215 | #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ |
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| 216 | {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ |
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| 217 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} |
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| 218 | #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ |
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| 219 | {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ |
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| 220 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} |
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| 221 | |
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| 222 | extern const struct in6_addr in6addr_any; |
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| 223 | extern const struct in6_addr in6addr_loopback; |
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| 224 | extern const struct in6_addr in6addr_nodelocal_allnodes; |
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| 225 | extern const struct in6_addr in6addr_linklocal_allnodes; |
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| 226 | extern const struct in6_addr in6addr_linklocal_allrouters; |
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| 227 | |
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| 228 | /* |
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| 229 | * Equality |
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| 230 | * NOTE: Some of kernel programming environment (for example, openbsd/sparc) |
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| 231 | * does not supply memcmp(). For userland memcmp() is preferred as it is |
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| 232 | * in ANSI standard. |
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| 233 | */ |
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| 234 | #ifdef _KERNEL |
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| 235 | #define IN6_ARE_ADDR_EQUAL(a, b) \ |
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| 236 | (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) |
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| 237 | #else |
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| 238 | #define IN6_ARE_ADDR_EQUAL(a, b) \ |
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| 239 | (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) |
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| 240 | #endif |
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| 241 | |
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| 242 | #ifdef _KERNEL /* non standard */ |
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| 243 | /* see if two addresses are equal in a scope-conscious manner. */ |
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| 244 | #define SA6_ARE_ADDR_EQUAL(a, b) \ |
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| 245 | (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ |
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| 246 | ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \ |
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| 247 | (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) |
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| 248 | #endif |
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| 249 | |
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| 250 | /* |
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| 251 | * Unspecified |
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| 252 | */ |
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| 253 | #define IN6_IS_ADDR_UNSPECIFIED(a) \ |
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| 254 | ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ |
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| 255 | (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ |
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| 256 | (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ |
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| 257 | (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) |
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| 258 | |
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| 259 | /* |
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| 260 | * Loopback |
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| 261 | */ |
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| 262 | #define IN6_IS_ADDR_LOOPBACK(a) \ |
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| 263 | ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ |
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| 264 | (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ |
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| 265 | (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ |
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| 266 | (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) |
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| 267 | |
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| 268 | /* |
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| 269 | * IPv4 compatible |
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| 270 | */ |
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| 271 | #define IN6_IS_ADDR_V4COMPAT(a) \ |
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| 272 | ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ |
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| 273 | (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ |
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| 274 | (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ |
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| 275 | (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ |
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| 276 | (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) |
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| 277 | |
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| 278 | /* |
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| 279 | * Mapped |
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| 280 | */ |
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| 281 | #define IN6_IS_ADDR_V4MAPPED(a) \ |
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| 282 | ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ |
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| 283 | (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ |
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| 284 | (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) |
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| 285 | |
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| 286 | /* |
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| 287 | * KAME Scope Values |
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| 288 | */ |
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| 289 | |
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| 290 | #ifdef _KERNEL /* XXX nonstandard */ |
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| 291 | #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 |
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| 292 | #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 |
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| 293 | #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 |
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| 294 | #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ |
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| 295 | #define IPV6_ADDR_SCOPE_GLOBAL 0x0e |
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| 296 | #else |
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| 297 | #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 |
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| 298 | #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 |
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| 299 | #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 |
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| 300 | #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ |
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| 301 | #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e |
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| 302 | #endif |
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| 303 | |
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| 304 | /* |
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| 305 | * Unicast Scope |
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| 306 | * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). |
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| 307 | */ |
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| 308 | #define IN6_IS_ADDR_LINKLOCAL(a) \ |
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| 309 | (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) |
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| 310 | #define IN6_IS_ADDR_SITELOCAL(a) \ |
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| 311 | (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) |
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| 312 | |
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| 313 | /* |
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| 314 | * Multicast |
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| 315 | */ |
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| 316 | #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) |
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| 317 | |
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| 318 | #ifdef _KERNEL /* XXX nonstandard */ |
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| 319 | #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) |
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| 320 | #else |
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| 321 | #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) |
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| 322 | #endif |
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| 323 | |
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| 324 | /* |
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| 325 | * Multicast Scope |
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| 326 | */ |
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| 327 | #ifdef _KERNEL /* refers nonstandard items */ |
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| 328 | #define IN6_IS_ADDR_MC_NODELOCAL(a) \ |
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| 329 | (IN6_IS_ADDR_MULTICAST(a) && \ |
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| 330 | (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) |
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| 331 | #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ |
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| 332 | (IN6_IS_ADDR_MULTICAST(a) && \ |
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| 333 | (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) |
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| 334 | #define IN6_IS_ADDR_MC_SITELOCAL(a) \ |
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| 335 | (IN6_IS_ADDR_MULTICAST(a) && \ |
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| 336 | (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) |
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| 337 | #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ |
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| 338 | (IN6_IS_ADDR_MULTICAST(a) && \ |
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| 339 | (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) |
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| 340 | #define IN6_IS_ADDR_MC_GLOBAL(a) \ |
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| 341 | (IN6_IS_ADDR_MULTICAST(a) && \ |
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| 342 | (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) |
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| 343 | #else |
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| 344 | #define IN6_IS_ADDR_MC_NODELOCAL(a) \ |
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| 345 | (IN6_IS_ADDR_MULTICAST(a) && \ |
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| 346 | (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) |
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| 347 | #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ |
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| 348 | (IN6_IS_ADDR_MULTICAST(a) && \ |
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| 349 | (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) |
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| 350 | #define IN6_IS_ADDR_MC_SITELOCAL(a) \ |
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| 351 | (IN6_IS_ADDR_MULTICAST(a) && \ |
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| 352 | (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) |
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| 353 | #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ |
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| 354 | (IN6_IS_ADDR_MULTICAST(a) && \ |
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| 355 | (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) |
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| 356 | #define IN6_IS_ADDR_MC_GLOBAL(a) \ |
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| 357 | (IN6_IS_ADDR_MULTICAST(a) && \ |
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| 358 | (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) |
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| 359 | #endif |
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| 360 | |
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| 361 | #ifdef _KERNEL /* nonstandard */ |
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| 362 | /* |
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| 363 | * KAME Scope |
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| 364 | */ |
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| 365 | #define IN6_IS_SCOPE_LINKLOCAL(a) \ |
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| 366 | ((IN6_IS_ADDR_LINKLOCAL(a)) || \ |
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| 367 | (IN6_IS_ADDR_MC_LINKLOCAL(a))) |
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| 368 | |
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| 369 | #define IFA6_IS_DEPRECATED(a) \ |
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| 370 | ((a)->ia6_lifetime.ia6t_preferred != 0 && \ |
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| 371 | (a)->ia6_lifetime.ia6t_preferred < time_second) |
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| 372 | #define IFA6_IS_INVALID(a) \ |
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| 373 | ((a)->ia6_lifetime.ia6t_expire != 0 && \ |
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| 374 | (a)->ia6_lifetime.ia6t_expire < time_second) |
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| 375 | #endif /* _KERNEL */ |
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| 376 | |
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| 377 | /* |
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| 378 | * IP6 route structure |
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| 379 | */ |
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| 380 | #ifndef _XOPEN_SOURCE |
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| 381 | struct route_in6 { |
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| 382 | struct rtentry *ro_rt; |
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| 383 | struct sockaddr_in6 ro_dst; |
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| 384 | }; |
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| 385 | #endif |
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| 386 | |
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| 387 | /* |
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| 388 | * Options for use with [gs]etsockopt at the IPV6 level. |
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| 389 | * First word of comment is data type; bool is stored in int. |
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| 390 | */ |
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| 391 | /* no hdrincl */ |
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| 392 | #if 0 /* the followings are relic in IPv4 and hence are disabled */ |
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| 393 | #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ |
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| 394 | #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ |
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| 395 | #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ |
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| 396 | #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ |
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| 397 | #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ |
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| 398 | #endif |
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| 399 | #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ |
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| 400 | #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ |
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| 401 | #define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */ |
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| 402 | #define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */ |
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| 403 | #define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */ |
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| 404 | #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ |
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| 405 | #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ |
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| 406 | #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ |
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| 407 | #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ |
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| 408 | /* RFC2292 options */ |
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| 409 | #define IPV6_PKTINFO 19 /* bool; send/recv if, src/dst addr */ |
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| 410 | #define IPV6_HOPLIMIT 20 /* bool; hop limit */ |
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| 411 | #define IPV6_NEXTHOP 21 /* bool; next hop addr */ |
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| 412 | #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ |
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| 413 | #define IPV6_DSTOPTS 23 /* bool; destination option */ |
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| 414 | #define IPV6_RTHDR 24 /* bool; routing header */ |
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| 415 | #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ |
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| 416 | |
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| 417 | #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ |
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| 418 | #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ |
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| 419 | #ifndef _KERNEL |
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| 420 | #define IPV6_BINDV6ONLY IPV6_V6ONLY |
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| 421 | #endif |
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| 422 | |
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| 423 | #if 1 /* IPSEC */ |
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| 424 | #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ |
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| 425 | #endif |
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| 426 | #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ |
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| 427 | |
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| 428 | #if 1 /* IPV6FIREWALL */ |
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| 429 | #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ |
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| 430 | #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ |
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| 431 | #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ |
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| 432 | #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ |
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| 433 | #define IPV6_FW_GET 34 /* get entire firewall rule chain */ |
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| 434 | #endif |
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| 435 | |
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| 436 | /* to define items, should talk with KAME guys first, for *BSD compatibility */ |
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| 437 | |
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| 438 | #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ |
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| 439 | #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ |
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| 440 | #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ |
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| 441 | |
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| 442 | /* |
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| 443 | * Defaults and limits for options |
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| 444 | */ |
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| 445 | #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ |
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| 446 | #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ |
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| 447 | |
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| 448 | /* |
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| 449 | * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. |
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| 450 | */ |
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| 451 | struct ipv6_mreq { |
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| 452 | struct in6_addr ipv6mr_multiaddr; |
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| 453 | unsigned int ipv6mr_interface; |
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| 454 | }; |
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| 455 | |
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| 456 | /* |
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| 457 | * IPV6_PKTINFO: Packet information(RFC2292 sec 5) |
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| 458 | */ |
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| 459 | struct in6_pktinfo { |
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| 460 | struct in6_addr ipi6_addr; /* src/dst IPv6 address */ |
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| 461 | unsigned int ipi6_ifindex; /* send/recv interface index */ |
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| 462 | }; |
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| 463 | |
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| 464 | /* |
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| 465 | * Argument for IPV6_PORTRANGE: |
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| 466 | * - which range to search when port is unspecified at bind() or connect() |
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| 467 | */ |
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| 468 | #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ |
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| 469 | #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ |
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| 470 | #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ |
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| 471 | |
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| 472 | #ifndef _XOPEN_SOURCE |
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| 473 | /* |
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| 474 | * Definitions for inet6 sysctl operations. |
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| 475 | * |
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| 476 | * Third level is protocol number. |
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| 477 | * Fourth level is desired variable within that protocol. |
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| 478 | */ |
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| 479 | #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ |
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| 480 | |
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| 481 | #define CTL_IPV6PROTO_NAMES { \ |
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| 482 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ |
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| 483 | { 0, 0 }, \ |
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| 484 | { "tcp6", CTLTYPE_NODE }, \ |
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| 485 | { 0, 0 }, \ |
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| 486 | { 0, 0 }, \ |
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| 487 | { 0, 0 }, \ |
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| 488 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ |
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| 489 | { 0, 0 }, \ |
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| 490 | { 0, 0 }, \ |
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| 491 | { "udp6", CTLTYPE_NODE }, \ |
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| 492 | { 0, 0 }, \ |
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| 493 | { 0, 0 }, \ |
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| 494 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ |
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| 495 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ |
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| 496 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ |
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| 497 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ |
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| 498 | { 0, 0 }, \ |
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| 499 | { "ip6", CTLTYPE_NODE }, \ |
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| 500 | { 0, 0 }, \ |
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| 501 | { 0, 0 }, \ |
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| 502 | { 0, 0 }, \ |
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| 503 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ |
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| 504 | { 0, 0 }, \ |
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| 505 | { "ipsec6", CTLTYPE_NODE }, \ |
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| 506 | { 0, 0 }, \ |
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| 507 | { 0, 0 }, \ |
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| 508 | { 0, 0 }, \ |
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| 509 | { 0, 0 }, \ |
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| 510 | { 0, 0 }, \ |
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| 511 | { 0, 0 }, \ |
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| 512 | { "icmp6", CTLTYPE_NODE }, \ |
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| 513 | { 0, 0 }, \ |
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| 514 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ |
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| 515 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ |
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| 516 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ |
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| 517 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ |
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| 518 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ |
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| 519 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ |
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| 520 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ |
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| 521 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ |
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| 522 | { 0, 0 }, \ |
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| 523 | { 0, 0 }, \ |
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| 524 | { 0, 0 }, \ |
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| 525 | { "pim6", CTLTYPE_NODE }, \ |
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| 526 | } |
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| 527 | |
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| 528 | /* |
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| 529 | * Names for IP sysctl objects |
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| 530 | */ |
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| 531 | #define IPV6CTL_FORWARDING 1 /* act as router */ |
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| 532 | #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ |
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| 533 | #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ |
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| 534 | #ifdef notyet |
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| 535 | #define IPV6CTL_DEFMTU 4 /* default MTU */ |
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| 536 | #endif |
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| 537 | #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ |
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| 538 | #define IPV6CTL_STATS 6 /* stats */ |
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| 539 | #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ |
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| 540 | #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ |
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| 541 | #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ |
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| 542 | #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ |
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| 543 | #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ |
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| 544 | #define IPV6CTL_ACCEPT_RTADV 12 |
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| 545 | #define IPV6CTL_KEEPFAITH 13 |
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| 546 | #define IPV6CTL_LOG_INTERVAL 14 |
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| 547 | #define IPV6CTL_HDRNESTLIMIT 15 |
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| 548 | #define IPV6CTL_DAD_COUNT 16 |
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| 549 | #define IPV6CTL_AUTO_FLOWLABEL 17 |
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| 550 | #define IPV6CTL_DEFMCASTHLIM 18 |
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| 551 | #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ |
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| 552 | #define IPV6CTL_KAME_VERSION 20 |
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| 553 | #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ |
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| 554 | #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ |
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| 555 | #if 0 /* obsolete */ |
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| 556 | #define IPV6CTL_MAPPED_ADDR 23 |
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| 557 | #endif |
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| 558 | #define IPV6CTL_V6ONLY 24 |
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| 559 | #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ |
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| 560 | #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ |
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| 561 | #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ |
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| 562 | |
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| 563 | #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ |
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| 564 | #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ |
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| 565 | #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ |
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| 566 | #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ |
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| 567 | #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ |
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| 568 | |
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| 569 | /* New entries should be added here from current IPV6CTL_MAXID value. */ |
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| 570 | /* to define items, should talk with KAME guys first, for *BSD compatibility */ |
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| 571 | #define IPV6CTL_MAXID 37 |
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| 572 | |
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| 573 | #endif /* !_XOPEN_SOURCE */ |
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| 574 | |
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| 575 | /* |
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| 576 | * Redefinition of mbuf flags |
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| 577 | */ |
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| 578 | #define M_AUTHIPHDR M_PROTO2 |
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| 579 | #define M_DECRYPTED M_PROTO3 |
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| 580 | #define M_LOOP M_PROTO4 |
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| 581 | #define M_AUTHIPDGM M_PROTO5 |
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| 582 | |
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| 583 | #ifdef _KERNEL |
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| 584 | struct cmsghdr; |
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| 585 | |
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| 586 | int in6_cksum __P((struct mbuf *, uint8_t, uint32_t, uint32_t)); |
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| 587 | int in6_localaddr __P((struct in6_addr *)); |
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| 588 | int in6_addrscope __P((struct in6_addr *)); |
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| 589 | struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); |
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| 590 | struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); |
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| 591 | extern void in6_if_up __P((struct ifnet *)); |
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| 592 | struct sockaddr; |
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| 593 | extern u_char ip6_protox[]; |
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| 594 | |
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| 595 | void in6_sin6_2_sin __P((struct sockaddr_in *sin, |
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| 596 | struct sockaddr_in6 *sin6)); |
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| 597 | void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, |
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| 598 | struct sockaddr_in6 *sin6)); |
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| 599 | void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); |
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| 600 | void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); |
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| 601 | |
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| 602 | #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) |
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| 603 | #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) |
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| 604 | #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) |
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| 605 | |
---|
| 606 | extern int (*faithprefix_p)(struct in6_addr *); |
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| 607 | #endif /* _KERNEL */ |
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| 608 | |
---|
| 609 | __BEGIN_DECLS |
---|
| 610 | struct cmsghdr; |
---|
| 611 | |
---|
| 612 | extern int inet6_option_space __P((int)); |
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| 613 | extern int inet6_option_init __P((void *, struct cmsghdr **, int)); |
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| 614 | extern int inet6_option_append __P((struct cmsghdr *, const uint8_t *, |
---|
| 615 | int, int)); |
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| 616 | extern uint8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); |
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| 617 | extern int inet6_option_next __P((const struct cmsghdr *, uint8_t **)); |
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| 618 | extern int inet6_option_find __P((const struct cmsghdr *, uint8_t **, int)); |
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| 619 | |
---|
| 620 | extern size_t inet6_rthdr_space __P((int, int)); |
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| 621 | extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); |
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| 622 | extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, |
---|
| 623 | unsigned int)); |
---|
| 624 | extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); |
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| 625 | #if 0 /* not implemented yet */ |
---|
| 626 | extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); |
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| 627 | #endif |
---|
| 628 | extern int inet6_rthdr_segments __P((const struct cmsghdr *)); |
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| 629 | extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); |
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| 630 | extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); |
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| 631 | |
---|
| 632 | extern int inet6_opt_init __P((void *, size_t)); |
---|
| 633 | extern int inet6_opt_append __P((void *, size_t, int, uint8_t, |
---|
| 634 | size_t, uint8_t, void **)); |
---|
| 635 | extern int inet6_opt_finish __P((void *, size_t, int)); |
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| 636 | extern int inet6_opt_set_val __P((void *, size_t, void *, int)); |
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| 637 | |
---|
| 638 | extern int inet6_opt_next __P((void *, size_t, int, uint8_t *, |
---|
| 639 | size_t *, void **)); |
---|
| 640 | extern int inet6_opt_find __P((void *, size_t, int, uint8_t, |
---|
| 641 | size_t *, void **)); |
---|
| 642 | extern int inet6_opt_get_val __P((void *, size_t, void *, int)); |
---|
| 643 | extern size_t inet6_rth_space __P((int, int)); |
---|
| 644 | extern void *inet6_rth_init __P((void *, int, int, int)); |
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| 645 | extern int inet6_rth_add __P((void *, const struct in6_addr *)); |
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| 646 | extern int inet6_rth_reverse __P((const void *, void *)); |
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| 647 | extern int inet6_rth_segments __P((const void *)); |
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| 648 | extern struct in6_addr *inet6_rth_getaddr __P((const void *, int)); |
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| 649 | __END_DECLS |
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| 650 | |
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| 651 | #endif /* !_NETINET6_IN6_H_ */ |
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