Annotation of sys/netinet6/in6.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: in6.h,v 1.44 2007/01/22 06:12:18 miod Exp $ */
! 2: /* $KAME: in6.h,v 1.83 2001/03/29 02:55:07 jinmei Exp $ */
! 3:
! 4: /*
! 5: * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
! 6: * All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. Neither the name of the project nor the names of its contributors
! 17: * may be used to endorse or promote products derived from this software
! 18: * without specific prior written permission.
! 19: *
! 20: * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
! 21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 23: * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
! 24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 30: * SUCH DAMAGE.
! 31: */
! 32:
! 33: /*
! 34: * Copyright (c) 1982, 1986, 1990, 1993
! 35: * The Regents of the University of California. All rights reserved.
! 36: *
! 37: * Redistribution and use in source and binary forms, with or without
! 38: * modification, are permitted provided that the following conditions
! 39: * are met:
! 40: * 1. Redistributions of source code must retain the above copyright
! 41: * notice, this list of conditions and the following disclaimer.
! 42: * 2. Redistributions in binary form must reproduce the above copyright
! 43: * notice, this list of conditions and the following disclaimer in the
! 44: * documentation and/or other materials provided with the distribution.
! 45: * 3. Neither the name of the University nor the names of its contributors
! 46: * may be used to endorse or promote products derived from this software
! 47: * without specific prior written permission.
! 48: *
! 49: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 50: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 51: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 52: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 53: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 54: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 55: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 56: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 57: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 58: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 59: * SUCH DAMAGE.
! 60: *
! 61: * @(#)in.h 8.3 (Berkeley) 1/3/94
! 62: */
! 63:
! 64: #ifndef __KAME_NETINET_IN_H_INCLUDED_
! 65: #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553"
! 66: #endif
! 67:
! 68: #ifndef _NETINET6_IN6_H_
! 69: #define _NETINET6_IN6_H_
! 70:
! 71: /*
! 72: * Identification of the network protocol stack
! 73: * for *BSD-current/release: http://www.kame.net/dev/cvsweb2.cgi/kame/COVERAGE
! 74: * has the table of implementation/integration differences.
! 75: */
! 76: #define __KAME__
! 77: #define __KAME_VERSION "OpenBSD-current"
! 78:
! 79: /*
! 80: * Local port number conventions:
! 81: *
! 82: * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
! 83: * unless a kernel is compiled with IPNOPRIVPORTS defined.
! 84: *
! 85: * When a user does a bind(2) or connect(2) with a port number of zero,
! 86: * a non-conflicting local port address is chosen.
! 87: *
! 88: * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
! 89: * that is settable by sysctl(3); net.inet.ip.anonportmin and
! 90: * net.inet.ip.anonportmax respectively.
! 91: *
! 92: * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
! 93: * default assignment range.
! 94: *
! 95: * The value IP_PORTRANGE_DEFAULT causes the default behavior.
! 96: *
! 97: * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
! 98: * and exists only for FreeBSD compatibility purposes.
! 99: *
! 100: * The value IP_PORTRANGE_LOW changes the range to the "low" are
! 101: * that is (by convention) restricted to privileged processes.
! 102: * This convention is based on "vouchsafe" principles only.
! 103: * It is only secure if you trust the remote host to restrict these ports.
! 104: * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
! 105: */
! 106:
! 107: #define IPV6PORT_RESERVED 1024
! 108: #define IPV6PORT_ANONMIN 49152
! 109: #define IPV6PORT_ANONMAX 65535
! 110: #define IPV6PORT_RESERVEDMIN 600
! 111: #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1)
! 112:
! 113: /*
! 114: * IPv6 address
! 115: */
! 116: struct in6_addr {
! 117: union {
! 118: u_int8_t __u6_addr8[16];
! 119: u_int16_t __u6_addr16[8];
! 120: u_int32_t __u6_addr32[4];
! 121: } __u6_addr; /* 128-bit IP6 address */
! 122: };
! 123:
! 124: #define s6_addr __u6_addr.__u6_addr8
! 125: #ifdef _KERNEL /* XXX nonstandard */
! 126: #define s6_addr8 __u6_addr.__u6_addr8
! 127: #define s6_addr16 __u6_addr.__u6_addr16
! 128: #define s6_addr32 __u6_addr.__u6_addr32
! 129: #endif
! 130:
! 131: #define INET6_ADDRSTRLEN 46
! 132:
! 133: /*
! 134: * Socket address for IPv6
! 135: */
! 136: #if __BSD_VISIBLE
! 137: #define SIN6_LEN
! 138: #endif
! 139: struct sockaddr_in6 {
! 140: u_int8_t sin6_len; /* length of this struct(sa_family_t)*/
! 141: sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */
! 142: in_port_t sin6_port; /* Transport layer port # (in_port_t)*/
! 143: u_int32_t sin6_flowinfo; /* IP6 flow information */
! 144: struct in6_addr sin6_addr; /* IP6 address */
! 145: u_int32_t sin6_scope_id; /* intface scope id */
! 146: };
! 147:
! 148: /*
! 149: * Local definition for masks
! 150: */
! 151: #ifdef _KERNEL /* XXX nonstandard */
! 152: #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
! 153: #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
! 154: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
! 155: #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
! 156: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
! 157: #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
! 158: 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
! 159: #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
! 160: 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
! 161: #endif
! 162:
! 163: #ifdef _KERNEL
! 164: extern const struct sockaddr_in6 sa6_any;
! 165:
! 166: extern const struct in6_addr in6mask0;
! 167: extern const struct in6_addr in6mask32;
! 168: extern const struct in6_addr in6mask64;
! 169: extern const struct in6_addr in6mask96;
! 170: extern const struct in6_addr in6mask128;
! 171: #endif /* _KERNEL */
! 172:
! 173: /*
! 174: * Macros started with IPV6_ADDR is KAME local
! 175: */
! 176: #ifdef _KERNEL /* XXX nonstandard */
! 177: #if BYTE_ORDER == BIG_ENDIAN
! 178: #define IPV6_ADDR_INT32_ONE 1
! 179: #define IPV6_ADDR_INT32_TWO 2
! 180: #define IPV6_ADDR_INT32_MNL 0xff010000
! 181: #define IPV6_ADDR_INT32_MLL 0xff020000
! 182: #define IPV6_ADDR_INT32_SMP 0x0000ffff
! 183: #define IPV6_ADDR_INT16_ULL 0xfe80
! 184: #define IPV6_ADDR_INT16_USL 0xfec0
! 185: #define IPV6_ADDR_INT16_MLL 0xff02
! 186: #elif BYTE_ORDER == LITTLE_ENDIAN
! 187: #define IPV6_ADDR_INT32_ONE 0x01000000
! 188: #define IPV6_ADDR_INT32_TWO 0x02000000
! 189: #define IPV6_ADDR_INT32_MNL 0x000001ff
! 190: #define IPV6_ADDR_INT32_MLL 0x000002ff
! 191: #define IPV6_ADDR_INT32_SMP 0xffff0000
! 192: #define IPV6_ADDR_INT16_ULL 0x80fe
! 193: #define IPV6_ADDR_INT16_USL 0xc0fe
! 194: #define IPV6_ADDR_INT16_MLL 0x02ff
! 195: #endif
! 196: #endif
! 197:
! 198: /*
! 199: * Definition of some useful macros to handle IP6 addresses
! 200: */
! 201: #if __BSD_VISIBLE
! 202: #define IN6ADDR_ANY_INIT \
! 203: {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
! 204: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
! 205: #define IN6ADDR_LOOPBACK_INIT \
! 206: {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
! 207: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
! 208: #define IN6ADDR_NODELOCAL_ALLNODES_INIT \
! 209: {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
! 210: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
! 211: #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \
! 212: {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
! 213: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
! 214: #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
! 215: {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
! 216: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
! 217: #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
! 218: {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
! 219: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
! 220: #endif
! 221:
! 222: extern const struct in6_addr in6addr_any;
! 223: extern const struct in6_addr in6addr_loopback;
! 224: #if __BSD_VISIBLE
! 225: extern const struct in6_addr in6addr_intfacelocal_allnodes;
! 226: extern const struct in6_addr in6addr_linklocal_allnodes;
! 227: extern const struct in6_addr in6addr_linklocal_allrouters;
! 228: #endif
! 229:
! 230: /*
! 231: * Equality
! 232: * NOTE: Some of kernel programming environment (for example, openbsd/sparc)
! 233: * does not supply memcmp(). For userland memcmp() is preferred as it is
! 234: * in ANSI standard.
! 235: */
! 236: #ifdef _KERNEL
! 237: #define IN6_ARE_ADDR_EQUAL(a, b) \
! 238: (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
! 239: #else
! 240: #if __BSD_VISIBLE
! 241: #define IN6_ARE_ADDR_EQUAL(a, b) \
! 242: (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
! 243: #endif
! 244: #endif
! 245:
! 246: /*
! 247: * Unspecified
! 248: */
! 249: #define IN6_IS_ADDR_UNSPECIFIED(a) \
! 250: ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
! 251: (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
! 252: (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
! 253: (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
! 254:
! 255: /*
! 256: * Loopback
! 257: */
! 258: #define IN6_IS_ADDR_LOOPBACK(a) \
! 259: ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
! 260: (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
! 261: (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
! 262: (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1)))
! 263:
! 264: /*
! 265: * IPv4 compatible
! 266: */
! 267: #define IN6_IS_ADDR_V4COMPAT(a) \
! 268: ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
! 269: (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
! 270: (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
! 271: (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \
! 272: (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1)))
! 273:
! 274: /*
! 275: * Mapped
! 276: */
! 277: #define IN6_IS_ADDR_V4MAPPED(a) \
! 278: ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
! 279: (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
! 280: (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
! 281:
! 282: /*
! 283: * KAME Scope Values
! 284: */
! 285:
! 286: #ifdef _KERNEL /* XXX nonstandard */
! 287: #define IPV6_ADDR_SCOPE_NODELOCAL 0x01
! 288: #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
! 289: #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02
! 290: #define IPV6_ADDR_SCOPE_SITELOCAL 0x05
! 291: #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
! 292: #define IPV6_ADDR_SCOPE_GLOBAL 0x0e
! 293: #else
! 294: #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01
! 295: #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01
! 296: #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02
! 297: #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05
! 298: #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */
! 299: #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e
! 300: #endif
! 301:
! 302: /*
! 303: * Unicast Scope
! 304: * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
! 305: */
! 306: #define IN6_IS_ADDR_LINKLOCAL(a) \
! 307: (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
! 308: #define IN6_IS_ADDR_SITELOCAL(a) \
! 309: (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
! 310:
! 311: /*
! 312: * Multicast
! 313: */
! 314: #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff)
! 315:
! 316: #ifdef _KERNEL /* XXX nonstandard */
! 317: #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
! 318: #else
! 319: #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f)
! 320: #endif
! 321:
! 322: /*
! 323: * Multicast Scope
! 324: */
! 325: #ifdef _KERNEL /* refers nonstandard items */
! 326: #define IN6_IS_ADDR_MC_NODELOCAL(a) \
! 327: (IN6_IS_ADDR_MULTICAST(a) && \
! 328: (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
! 329: #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \
! 330: (IN6_IS_ADDR_MULTICAST(a) && \
! 331: (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL))
! 332: #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
! 333: (IN6_IS_ADDR_MULTICAST(a) && \
! 334: (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
! 335: #define IN6_IS_ADDR_MC_SITELOCAL(a) \
! 336: (IN6_IS_ADDR_MULTICAST(a) && \
! 337: (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
! 338: #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
! 339: (IN6_IS_ADDR_MULTICAST(a) && \
! 340: (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
! 341: #define IN6_IS_ADDR_MC_GLOBAL(a) \
! 342: (IN6_IS_ADDR_MULTICAST(a) && \
! 343: (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
! 344: #else
! 345: #define IN6_IS_ADDR_MC_NODELOCAL(a) \
! 346: (IN6_IS_ADDR_MULTICAST(a) && \
! 347: (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
! 348: #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \
! 349: (IN6_IS_ADDR_MULTICAST(a) && \
! 350: (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_INTFACELOCAL))
! 351: #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
! 352: (IN6_IS_ADDR_MULTICAST(a) && \
! 353: (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
! 354: #define IN6_IS_ADDR_MC_SITELOCAL(a) \
! 355: (IN6_IS_ADDR_MULTICAST(a) && \
! 356: (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
! 357: #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
! 358: (IN6_IS_ADDR_MULTICAST(a) && \
! 359: (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
! 360: #define IN6_IS_ADDR_MC_GLOBAL(a) \
! 361: (IN6_IS_ADDR_MULTICAST(a) && \
! 362: (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
! 363: #endif
! 364:
! 365: #ifdef _KERNEL /* nonstandard */
! 366: /*
! 367: * KAME Scope
! 368: */
! 369: #define IN6_IS_SCOPE_LINKLOCAL(a) \
! 370: ((IN6_IS_ADDR_LINKLOCAL(a)) || \
! 371: (IN6_IS_ADDR_MC_LINKLOCAL(a)))
! 372: #define IN6_IS_SCOPE_EMBED(a) \
! 373: ((IN6_IS_ADDR_LINKLOCAL(a)) || \
! 374: (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \
! 375: (IN6_IS_ADDR_MC_INTFACELOCAL(a)))
! 376:
! 377: #define IFA6_IS_DEPRECATED(a) \
! 378: ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \
! 379: (u_int32_t)((time_second - (a)->ia6_updatetime)) > \
! 380: (a)->ia6_lifetime.ia6t_pltime)
! 381: #define IFA6_IS_INVALID(a) \
! 382: ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \
! 383: (u_int32_t)((time_second - (a)->ia6_updatetime)) > \
! 384: (a)->ia6_lifetime.ia6t_vltime)
! 385: #endif
! 386:
! 387: /*
! 388: * IP6 route structure
! 389: */
! 390: #if __BSD_VISIBLE
! 391: struct route_in6 {
! 392: struct rtentry *ro_rt;
! 393: struct sockaddr_in6 ro_dst;
! 394: };
! 395: #endif
! 396:
! 397: /*
! 398: * Options for use with [gs]etsockopt at the IPV6 level.
! 399: * First word of comment is data type; bool is stored in int.
! 400: */
! 401: #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */
! 402: /* no hdrincl */
! 403: #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */
! 404: #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */
! 405: #if 0 /* the followings are relic in IPv4 and hence are disabled */
! 406: #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */
! 407: #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */
! 408: #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */
! 409: #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */
! 410: #endif
! 411: #define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */
! 412: #define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */
! 413: #define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */
! 414: #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */
! 415: #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */
! 416: #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */
! 417: #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */
! 418:
! 419: /* RFC2292 options */
! 420: #ifdef _KERNEL
! 421: #define IPV6_2292PKTINFO 19 /* bool; send/rcv if, src/dst addr */
! 422: #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */
! 423: #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */
! 424: #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */
! 425: #define IPV6_2292DSTOPTS 23 /* bool; destination option */
! 426: #define IPV6_2292RTHDR 24 /* bool; routing header */
! 427: #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */
! 428: #endif
! 429:
! 430: #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */
! 431: #define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */
! 432:
! 433: #if 0 /*KAME IPSEC*/
! 434: #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */
! 435: #endif
! 436: #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */
! 437:
! 438: /* 30-34: reserved */
! 439:
! 440: /* new socket options introduced in RFC3542 */
! 441: #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */
! 442:
! 443: #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */
! 444: #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */
! 445: #define IPV6_RECVRTHDR 38 /* bool; recv routing header */
! 446: #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */
! 447: #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */
! 448: #ifdef _KERNEL
! 449: #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */
! 450: #endif
! 451:
! 452: #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */
! 453: #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */
! 454:
! 455: #define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt),
! 456: 4 bytes int; MTU notification (cmsg) */
! 457:
! 458: /* 45: reserved */
! 459:
! 460: /* more new socket options introduced in RFC3542 */
! 461: #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */
! 462: #define IPV6_HOPLIMIT 47 /* int; send hop limit */
! 463: #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */
! 464: #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */
! 465: #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */
! 466: #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */
! 467:
! 468: /* 52: reserved */
! 469: #define IPV6_AUTH_LEVEL 53 /* int; authentication used */
! 470: #define IPV6_ESP_TRANS_LEVEL 54 /* int; transport encryption */
! 471: #define IPV6_ESP_NETWORK_LEVEL 55 /* int; full-packet encryption */
! 472: #define IPSEC6_OUTSA 56 /* set the outbound SA for a socket */
! 473: #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */
! 474: /* 58: reserved */
! 475: #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */
! 476: #define IPV6_IPCOMP_LEVEL 60 /* int; compression */
! 477:
! 478: #define IPV6_TCLASS 61 /* int; send traffic class value */
! 479: #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */
! 480:
! 481: /* to define items, should talk with KAME guys first, for *BSD compatibility */
! 482:
! 483: #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */
! 484: #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */
! 485: #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */
! 486:
! 487: /*
! 488: * Defaults and limits for options
! 489: */
! 490: #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */
! 491: #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
! 492:
! 493: /*
! 494: * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
! 495: */
! 496: struct ipv6_mreq {
! 497: struct in6_addr ipv6mr_multiaddr;
! 498: unsigned int ipv6mr_interface;
! 499: };
! 500:
! 501: /*
! 502: * IPV6_PKTINFO: Packet information(RFC2292 sec 5)
! 503: */
! 504: struct in6_pktinfo {
! 505: struct in6_addr ipi6_addr; /* src/dst IPv6 address */
! 506: unsigned int ipi6_ifindex; /* send/recv interface index */
! 507: };
! 508:
! 509: /*
! 510: * Control structure for IPV6_RECVPATHMTU socket option.
! 511: */
! 512: struct ip6_mtuinfo {
! 513: struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */
! 514: u_int32_t ip6m_mtu;
! 515: };
! 516:
! 517: /*
! 518: * Argument for IPV6_PORTRANGE:
! 519: * - which range to search when port is unspecified at bind() or connect()
! 520: */
! 521: #define IPV6_PORTRANGE_DEFAULT 0 /* default range */
! 522: #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
! 523: #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
! 524:
! 525: #if __BSD_VISIBLE
! 526: /*
! 527: * Definitions for inet6 sysctl operations.
! 528: *
! 529: * Third level is protocol number.
! 530: * Fourth level is desired variable within that protocol.
! 531: */
! 532: #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */
! 533:
! 534: #define CTL_IPV6PROTO_NAMES { \
! 535: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
! 536: { 0, 0 }, \
! 537: { "tcp6", CTLTYPE_NODE }, \
! 538: { 0, 0 }, \
! 539: { 0, 0 }, \
! 540: { 0, 0 }, \
! 541: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
! 542: { 0, 0 }, \
! 543: { 0, 0 }, \
! 544: { "udp6", CTLTYPE_NODE }, \
! 545: { 0, 0 }, \
! 546: { 0, 0 }, \
! 547: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
! 548: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
! 549: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
! 550: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
! 551: { 0, 0 }, \
! 552: { "ip6", CTLTYPE_NODE }, \
! 553: { 0, 0 }, \
! 554: { 0, 0 }, \
! 555: { 0, 0 }, \
! 556: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
! 557: { 0, 0 }, \
! 558: { "ipsec6", CTLTYPE_NODE }, \
! 559: { 0, 0 }, \
! 560: { 0, 0 }, \
! 561: { 0, 0 }, \
! 562: { 0, 0 }, \
! 563: { 0, 0 }, \
! 564: { 0, 0 }, \
! 565: { "icmp6", CTLTYPE_NODE }, \
! 566: { 0, 0 }, \
! 567: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
! 568: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
! 569: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
! 570: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
! 571: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
! 572: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
! 573: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
! 574: { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
! 575: { 0, 0 }, \
! 576: { 0, 0 }, \
! 577: { 0, 0 }, \
! 578: { "pim6", CTLTYPE_NODE }, \
! 579: }
! 580:
! 581: /*
! 582: * Names for IP sysctl objects
! 583: */
! 584: #define IPV6CTL_FORWARDING 1 /* act as router */
! 585: #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/
! 586: #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */
! 587: #ifdef notyet
! 588: #define IPV6CTL_DEFMTU 4 /* default MTU */
! 589: #endif
! 590: #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */
! 591: #define IPV6CTL_STATS 6 /* stats */
! 592: #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */
! 593: #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */
! 594: #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */
! 595: #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */
! 596: #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */
! 597: #define IPV6CTL_ACCEPT_RTADV 12
! 598: #define IPV6CTL_KEEPFAITH 13
! 599: #define IPV6CTL_LOG_INTERVAL 14
! 600: #define IPV6CTL_HDRNESTLIMIT 15
! 601: #define IPV6CTL_DAD_COUNT 16
! 602: #define IPV6CTL_AUTO_FLOWLABEL 17
! 603: #define IPV6CTL_DEFMCASTHLIM 18
! 604: #ifdef notdef /* obsolete */
! 605: #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */
! 606: #endif
! 607: #define IPV6CTL_KAME_VERSION 20
! 608: #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */
! 609: #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */
! 610: /*#define IPV6CTL_MAPPED_ADDR 23 not for openbsd */
! 611: #define IPV6CTL_V6ONLY 24
! 612: /* 25 to 40: resrved */
! 613: #define IPV6CTL_MAXFRAGS 41 /* max fragments */
! 614: #define IPV6CTL_MFORWARDING 42
! 615: #define IPV6CTL_MULTIPATH 43
! 616: #define IPV6CTL_MCAST_PMTU 44 /* path MTU discovery for multicast */
! 617: #define IPV6CTL_MAXID 45
! 618: /* New entries should be added here from current IPV6CTL_MAXID value. */
! 619: /* to define items, should talk with KAME guys first, for *BSD compatibility */
! 620:
! 621: #define IPV6CTL_NAMES { \
! 622: { 0, 0 }, \
! 623: { "forwarding", CTLTYPE_INT }, \
! 624: { "redirect", CTLTYPE_INT }, \
! 625: { "hlim", CTLTYPE_INT }, \
! 626: { "mtu", CTLTYPE_INT }, \
! 627: { "forwsrcrt", CTLTYPE_INT }, \
! 628: { 0, 0 }, \
! 629: { 0, 0 }, \
! 630: { "mrtproto", CTLTYPE_INT }, \
! 631: { "maxfragpackets", CTLTYPE_INT }, \
! 632: { "sourcecheck", CTLTYPE_INT }, \
! 633: { "sourcecheck_logint", CTLTYPE_INT }, \
! 634: { "accept_rtadv", CTLTYPE_INT }, \
! 635: { "keepfaith", CTLTYPE_INT }, \
! 636: { "log_interval", CTLTYPE_INT }, \
! 637: { "hdrnestlimit", CTLTYPE_INT }, \
! 638: { "dad_count", CTLTYPE_INT }, \
! 639: { "auto_flowlabel", CTLTYPE_INT }, \
! 640: { "defmcasthlim", CTLTYPE_INT }, \
! 641: { 0, 0 }, \
! 642: { "kame_version", CTLTYPE_STRING }, \
! 643: { "use_deprecated", CTLTYPE_INT }, \
! 644: { "rr_prune", CTLTYPE_INT }, \
! 645: { 0, 0 }, \
! 646: { "v6only", CTLTYPE_INT }, \
! 647: { 0, 0 }, \
! 648: { 0, 0 }, \
! 649: { 0, 0 }, \
! 650: { 0, 0 }, \
! 651: { 0, 0 }, \
! 652: { 0, 0 }, \
! 653: { 0, 0 }, \
! 654: { 0, 0 }, \
! 655: { 0, 0 }, \
! 656: { 0, 0 }, \
! 657: { 0, 0 }, \
! 658: { 0, 0 }, \
! 659: { 0, 0 }, \
! 660: { 0, 0 }, \
! 661: { 0, 0 }, \
! 662: { 0, 0 }, \
! 663: { "maxfrags", CTLTYPE_INT }, \
! 664: { "mforwarding", CTLTYPE_INT }, \
! 665: { "multipath", CTLTYPE_INT }, \
! 666: { "multicast_mtudisc", CTLTYPE_INT }, \
! 667: }
! 668:
! 669: #define IPV6CTL_VARS { \
! 670: NULL, \
! 671: &ip6_forwarding, \
! 672: &ip6_sendredirects, \
! 673: &ip6_defhlim, \
! 674: NULL, \
! 675: NULL, \
! 676: NULL, \
! 677: NULL, \
! 678: NULL, \
! 679: &ip6_maxfragpackets, \
! 680: NULL, \
! 681: NULL, \
! 682: &ip6_accept_rtadv, \
! 683: &ip6_keepfaith, \
! 684: &ip6_log_interval, \
! 685: &ip6_hdrnestlimit, \
! 686: &ip6_dad_count, \
! 687: &ip6_auto_flowlabel, \
! 688: &ip6_defmcasthlim, \
! 689: NULL, \
! 690: NULL, \
! 691: &ip6_use_deprecated, \
! 692: &ip6_rr_prune, \
! 693: NULL, \
! 694: NULL, \
! 695: NULL, \
! 696: NULL, \
! 697: NULL, \
! 698: NULL, \
! 699: NULL, \
! 700: NULL, \
! 701: NULL, \
! 702: NULL, \
! 703: NULL, \
! 704: NULL, \
! 705: NULL, \
! 706: NULL, \
! 707: NULL, \
! 708: NULL, \
! 709: NULL, \
! 710: NULL, \
! 711: &ip6_maxfrags, \
! 712: &ip6_mforwarding, \
! 713: &ip6_multipath, \
! 714: &ip6_mcast_pmtu, \
! 715: }
! 716:
! 717: #endif /* __BSD_VISIBLE */
! 718:
! 719: #ifdef _KERNEL
! 720: struct cmsghdr;
! 721:
! 722: int in6_cksum(struct mbuf *, u_int8_t, u_int32_t, u_int32_t);
! 723: int in6_localaddr(struct in6_addr *);
! 724: int in6_addrscope(struct in6_addr *);
! 725: struct in6_ifaddr *in6_ifawithscope(struct ifnet *, struct in6_addr *);
! 726: struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *);
! 727: extern void in6_if_up(struct ifnet *);
! 728:
! 729: #define satosin6(sa) ((struct sockaddr_in6 *)(sa))
! 730: #define sin6tosa(sin6) ((struct sockaddr *)(sin6))
! 731: #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
! 732: #endif /* _KERNEL */
! 733:
! 734: __BEGIN_DECLS
! 735: struct cmsghdr;
! 736:
! 737: extern int inet6_option_space(int);
! 738: extern int inet6_option_init(void *, struct cmsghdr **, int);
! 739: extern int inet6_option_append(struct cmsghdr *, const u_int8_t *,
! 740: int, int);
! 741: extern u_int8_t *inet6_option_alloc(struct cmsghdr *, int, int, int);
! 742: extern int inet6_option_next(const struct cmsghdr *, u_int8_t **);
! 743: extern int inet6_option_find(const struct cmsghdr *, u_int8_t **, int);
! 744:
! 745: extern size_t inet6_rthdr_space(int, int);
! 746: extern struct cmsghdr *inet6_rthdr_init(void *, int);
! 747: extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *,
! 748: unsigned int);
! 749: extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int);
! 750: #if 0 /* not implemented yet */
! 751: extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *);
! 752: #endif
! 753: extern int inet6_rthdr_segments(const struct cmsghdr *);
! 754: extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int);
! 755: extern int inet6_rthdr_getflags(const struct cmsghdr *, int);
! 756:
! 757: extern int inet6_opt_init(void *, socklen_t);
! 758: extern int inet6_opt_append(void *, socklen_t, int, u_int8_t,
! 759: socklen_t, u_int8_t, void **);
! 760: extern int inet6_opt_finish(void *, socklen_t, int);
! 761: extern int inet6_opt_set_val(void *, int, void *, socklen_t);
! 762:
! 763: extern int inet6_opt_next(void *, socklen_t, int, u_int8_t *,
! 764: socklen_t *, void **);
! 765: extern int inet6_opt_find(void *, socklen_t, int, u_int8_t,
! 766: socklen_t *, void **);
! 767: extern int inet6_opt_get_val(void *, int, void *, socklen_t);
! 768:
! 769: extern socklen_t inet6_rth_space(int, int);
! 770: extern void *inet6_rth_init(void *, socklen_t, int, int);
! 771: extern int inet6_rth_add(void *, const struct in6_addr *);
! 772: extern int inet6_rth_reverse(const void *, void *);
! 773: extern int inet6_rth_segments(const void *);
! 774: extern struct in6_addr *inet6_rth_getaddr(const void *, int);
! 775: __END_DECLS
! 776:
! 777: #endif /* !_NETINET6_IN6_H_ */
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