newlib/libc/sys/rtems/include/netinet6/in6.h

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the project nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  *      $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $
  32  */
  33
  34 /*-
  35  * Copyright (c) 1982, 1986, 1990, 1993
  36  *      The Regents of the University of California.  All rights reserved.
  37  *
  38  * Redistribution and use in source and binary forms, with or without
  39  * modification, are permitted provided that the following conditions
  40  * are met:
  41  * 1. Redistributions of source code must retain the above copyright
  42  *    notice, this list of conditions and the following disclaimer.
  43  * 2. Redistributions in binary form must reproduce the above copyright
  44  *    notice, this list of conditions and the following disclaimer in the
  45  *    documentation and/or other materials provided with the distribution.
  46  * 3. Neither the name of the University nor the names of its contributors
  47  *    may be used to endorse or promote products derived from this software
  48  *    without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  51  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  52  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  53  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  54  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  55  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  56  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  57  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  58  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  59  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  60  * SUCH DAMAGE.
  61  *
  62  *      @(#)in.h        8.3 (Berkeley) 1/3/94
  63  * $FreeBSD$
  64  */
  65
  66 #ifndef __KAME_NETINET_IN_H_INCLUDED_
  67 #error "do not include netinet6/in6.h directly, include netinet/in.h.  see RFC2553"
  68 #endif
  69
  70 #ifndef _NETINET6_IN6_H_
  71 #define _NETINET6_IN6_H_
  72
  73 /*
  74  * Identification of the network protocol stack
  75  * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
  76  * has the table of implementation/integration differences.
  77  */
  78 #define __KAME__
  79 #define __KAME_VERSION          "FreeBSD"
  80
  81 /*
  82  * IPv6 port allocation rules should mirror the IPv4 rules and are controlled
  83  * by the net.inet.ip.portrange sysctl tree. The following defines exist
  84  * for compatibility with userland applications that need them.
  85  */
  86 #if __BSD_VISIBLE
  87 #define IPV6PORT_RESERVED       1024
  88 #define IPV6PORT_ANONMIN        49152
  89 #define IPV6PORT_ANONMAX        65535
  90 #define IPV6PORT_RESERVEDMIN    600
  91 #define IPV6PORT_RESERVEDMAX    (IPV6PORT_RESERVED-1)
  92 #endif
  93
  94 /*
  95  * IPv6 address
  96  */
  97 struct in6_addr {
  98         union {
  99                 uint8_t         __u6_addr8[16];
 100                 uint16_t        __u6_addr16[8];
 101                 uint32_t        __u6_addr32[4];
 102         } __u6_addr;                    /* 128-bit IP6 address */
 103 };
 104
 105 #define s6_addr   __u6_addr.__u6_addr8
 106
 107 #define INET6_ADDRSTRLEN        46
 108
 109 /*
 110  * XXX missing POSIX.1-2001 macro IPPROTO_IPV6.
 111  */
 112
 113 /*
 114  * Socket address for IPv6
 115  */
 116 #if __BSD_VISIBLE
 117 #define SIN6_LEN
 118 #endif
 119
 120 struct sockaddr_in6 {
 121         uint8_t         sin6_len;       /* length of this struct */
 122         sa_family_t     sin6_family;    /* AF_INET6 */
 123         in_port_t       sin6_port;      /* Transport layer port # */
 124         uint32_t        sin6_flowinfo;  /* IP6 flow information */
 125         struct in6_addr sin6_addr;      /* IP6 address */
 126         uint32_t        sin6_scope_id;  /* scope zone index */
 127 };
 128
 129 /*
 130  * Definition of some useful macros to handle IP6 addresses
 131  */
 132 #if __BSD_VISIBLE
 133 #define IN6ADDR_ANY_INIT \
 134         {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
 135             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
 136 #define IN6ADDR_LOOPBACK_INIT \
 137         {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
 138             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
 139 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \
 140         {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
 141             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
 142 #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \
 143         {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
 144             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
 145 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
 146         {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
 147             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
 148 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
 149         {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
 150             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
 151 #define IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT \
 152         {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
 153             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16 }}}
 154 #endif
 155
 156 extern const struct in6_addr in6addr_any;
 157 extern const struct in6_addr in6addr_loopback;
 158 #if __BSD_VISIBLE
 159 extern const struct in6_addr in6addr_nodelocal_allnodes;
 160 extern const struct in6_addr in6addr_linklocal_allnodes;
 161 extern const struct in6_addr in6addr_linklocal_allrouters;
 162 extern const struct in6_addr in6addr_linklocal_allv2routers;
 163 #endif
 164
 165 /*
 166  * Equality
 167  * NOTE: Some of kernel programming environment (for example, openbsd/sparc)
 168  * does not supply memcmp().  For userland memcmp() is preferred as it is
 169  * in ANSI standard.
 170  */
 171 #if __BSD_VISIBLE
 172 #define IN6_ARE_ADDR_EQUAL(a, b)                        \
 173     (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
 174 #endif
 175
 176 /*
 177  * Unspecified
 178  */
 179 #define IN6_IS_ADDR_UNSPECIFIED(a)      \
 180         ((a)->__u6_addr.__u6_addr32[0] == 0 &&  \
 181          (a)->__u6_addr.__u6_addr32[1] == 0 &&  \
 182          (a)->__u6_addr.__u6_addr32[2] == 0 &&  \
 183          (a)->__u6_addr.__u6_addr32[3] == 0)
 184
 185 /*
 186  * Loopback
 187  */
 188 #define IN6_IS_ADDR_LOOPBACK(a)         \
 189         ((a)->__u6_addr.__u6_addr32[0] == 0 &&  \
 190          (a)->__u6_addr.__u6_addr32[1] == 0 &&  \
 191          (a)->__u6_addr.__u6_addr32[2] == 0 &&  \
 192          (a)->__u6_addr.__u6_addr32[3] == ntohl(1))
 193
 194 /*
 195  * IPv4 compatible
 196  */
 197 #define IN6_IS_ADDR_V4COMPAT(a)         \
 198         ((a)->__u6_addr.__u6_addr32[0] == 0 &&  \
 199          (a)->__u6_addr.__u6_addr32[1] == 0 &&  \
 200          (a)->__u6_addr.__u6_addr32[2] == 0 &&  \
 201          (a)->__u6_addr.__u6_addr32[3] != 0 &&  \
 202          (a)->__u6_addr.__u6_addr32[3] != ntohl(1))
 203
 204 /*
 205  * Mapped
 206  */
 207 #define IN6_IS_ADDR_V4MAPPED(a)               \
 208         ((a)->__u6_addr.__u6_addr32[0] == 0 &&  \
 209          (a)->__u6_addr.__u6_addr32[1] == 0 &&  \
 210          (a)->__u6_addr.__u6_addr32[2] == ntohl(0x0000ffff))
 211
 212 /*
 213  * KAME Scope Values
 214  */
 215
 216 #ifndef _KERNEL
 217 #define __IPV6_ADDR_SCOPE_NODELOCAL     0x01
 218 #define __IPV6_ADDR_SCOPE_INTFACELOCAL  0x01
 219 #define __IPV6_ADDR_SCOPE_LINKLOCAL     0x02
 220 #define __IPV6_ADDR_SCOPE_SITELOCAL     0x05
 221 #define __IPV6_ADDR_SCOPE_ORGLOCAL      0x08    /* just used in this file */
 222 #define __IPV6_ADDR_SCOPE_GLOBAL        0x0e
 223 #endif
 224
 225 /*
 226  * Unicast Scope
 227  * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
 228  */
 229 #define IN6_IS_ADDR_LINKLOCAL(a)        \
 230         (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
 231 #define IN6_IS_ADDR_SITELOCAL(a)        \
 232         (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
 233
 234 /*
 235  * Multicast
 236  */
 237 #define IN6_IS_ADDR_MULTICAST(a)        ((a)->s6_addr[0] == 0xff)
 238
 239 #ifndef _KERNEL
 240 #define __IPV6_ADDR_MC_SCOPE(a)         ((a)->s6_addr[1] & 0x0f)
 241 #endif
 242
 243 /*
 244  * Multicast Scope
 245  */
 246 #ifndef _KERNEL
 247 #define IN6_IS_ADDR_MC_NODELOCAL(a)     \
 248         (IN6_IS_ADDR_MULTICAST(a) &&    \
 249          (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
 250 #define IN6_IS_ADDR_MC_LINKLOCAL(a)     \
 251         (IN6_IS_ADDR_MULTICAST(a) &&    \
 252          (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
 253 #define IN6_IS_ADDR_MC_SITELOCAL(a)     \
 254         (IN6_IS_ADDR_MULTICAST(a) &&    \
 255          (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
 256 #define IN6_IS_ADDR_MC_ORGLOCAL(a)      \
 257         (IN6_IS_ADDR_MULTICAST(a) &&    \
 258          (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
 259 #define IN6_IS_ADDR_MC_GLOBAL(a)        \
 260         (IN6_IS_ADDR_MULTICAST(a) &&    \
 261          (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
 262 #endif
 263
 264 /*
 265  * IP6 route structure
 266  */
 267 #if __BSD_VISIBLE
 268 struct nhop_object;
 269 struct route_in6 {
 270 #if __FreeBSD_version >= 1300092
 271         struct nhop_object *ro_nh;
 272 #else
 273         struct  rtentry *ro_rt;
 274 #endif
 275         struct  llentry *ro_lle;
 276         /*
 277          * ro_prepend and ro_plen are only used for bpf to pass in a
 278          * preformed header.  They are not cacheable.
 279          */
 280         char            *ro_prepend;
 281         uint16_t        ro_plen;
 282         uint16_t        ro_flags;
 283         uint16_t        ro_mtu; /* saved ro_rt mtu */
 284         uint16_t        spare;
 285         struct  sockaddr_in6 ro_dst;
 286 };
 287 #endif
 288
 289 /*
 290  * Options for use with [gs]etsockopt at the IPV6 level.
 291  * First word of comment is data type; bool is stored in int.
 292  */
 293 /* no hdrincl */
 294 #if 0 /* the followings are relic in IPv4 and hence are disabled */
 295 #define IPV6_OPTIONS            1  /* buf/ip6_opts; set/get IP6 options */
 296 #define IPV6_RECVOPTS           5  /* bool; receive all IP6 opts w/dgram */
 297 #define IPV6_RECVRETOPTS        6  /* bool; receive IP6 opts for response */
 298 #define IPV6_RECVDSTADDR        7  /* bool; receive IP6 dst addr w/dgram */
 299 #define IPV6_RETOPTS            8  /* ip6_opts; set/get IP6 options */
 300 #endif
 301 #define IPV6_SOCKOPT_RESERVED1  3  /* reserved for future use */
 302 #define IPV6_UNICAST_HOPS       4  /* int; IP6 hops */
 303 #define IPV6_MULTICAST_IF       9  /* u_int; set/get IP6 multicast i/f  */
 304 #define IPV6_MULTICAST_HOPS     10 /* int; set/get IP6 multicast hops */
 305 #define IPV6_MULTICAST_LOOP     11 /* u_int; set/get IP6 multicast loopback */
 306 #define IPV6_JOIN_GROUP         12 /* ipv6_mreq; join a group membership */
 307 #define IPV6_LEAVE_GROUP        13 /* ipv6_mreq; leave a group membership */
 308 #define IPV6_PORTRANGE          14 /* int; range to choose for unspec port */
 309 #define ICMP6_FILTER            18 /* icmp6_filter; icmp6 filter */
 310
 311 #define IPV6_CHECKSUM           26 /* int; checksum offset for raw socket */
 312 #define IPV6_V6ONLY             27 /* bool; make AF_INET6 sockets v6 only */
 313 #ifndef _KERNEL
 314 #define IPV6_BINDV6ONLY         IPV6_V6ONLY
 315 #endif
 316
 317 #define IPV6_IPSEC_POLICY       28 /* struct; get/set security policy */
 318                                    /* 29; unused; was IPV6_FAITH */
 319 #if 1 /* IPV6FIREWALL */
 320 #define IPV6_FW_ADD             30 /* add a firewall rule to chain */
 321 #define IPV6_FW_DEL             31 /* delete a firewall rule from chain */
 322 #define IPV6_FW_FLUSH           32 /* flush firewall rule chain */
 323 #define IPV6_FW_ZERO            33 /* clear single/all firewall counter(s) */
 324 #define IPV6_FW_GET             34 /* get entire firewall rule chain */
 325 #endif
 326
 327 /* new socket options introduced in RFC3542 */
 328 #define IPV6_RTHDRDSTOPTS       35 /* ip6_dest; send dst option before rthdr */
 329
 330 #define IPV6_RECVPKTINFO        36 /* bool; recv if, dst addr */
 331 #define IPV6_RECVHOPLIMIT       37 /* bool; recv hop limit */
 332 #define IPV6_RECVRTHDR          38 /* bool; recv routing header */
 333 #define IPV6_RECVHOPOPTS        39 /* bool; recv hop-by-hop option */
 334 #define IPV6_RECVDSTOPTS        40 /* bool; recv dst option after rthdr */
 335
 336 #define IPV6_USE_MIN_MTU        42 /* bool; send packets at the minimum MTU */
 337 #define IPV6_RECVPATHMTU        43 /* bool; notify an according MTU */
 338
 339 #define IPV6_PATHMTU            44 /* mtuinfo; get the current path MTU (sopt),
 340                                       4 bytes int; MTU notification (cmsg) */
 341 #if 0 /*obsoleted during 2292bis -> 3542*/
 342 #define IPV6_REACHCONF          45 /* no data; ND reachability confirm
 343                                       (cmsg only/not in of RFC3542) */
 344 #endif
 345
 346 /* more new socket options introduced in RFC3542 */
 347 #define IPV6_PKTINFO            46 /* in6_pktinfo; send if, src addr */
 348 #define IPV6_HOPLIMIT           47 /* int; send hop limit */
 349 #define IPV6_NEXTHOP            48 /* sockaddr; next hop addr */
 350 #define IPV6_HOPOPTS            49 /* ip6_hbh; send hop-by-hop option */
 351 #define IPV6_DSTOPTS            50 /* ip6_dest; send dst option befor rthdr */
 352 #define IPV6_RTHDR              51 /* ip6_rthdr; send routing header */
 353 #if 0
 354 #define IPV6_PKTOPTIONS         52 /* buf/cmsghdr; set/get IPv6 options */
 355                                    /* obsoleted by RFC3542 */
 356 #endif
 357
 358 #define IPV6_RECVTCLASS         57 /* bool; recv traffic class values */
 359
 360 #define IPV6_AUTOFLOWLABEL      59 /* bool; attach flowlabel automagically */
 361
 362 #define IPV6_TCLASS             61 /* int; send traffic class value */
 363 #define IPV6_DONTFRAG           62 /* bool; disable IPv6 fragmentation */
 364
 365 #define IPV6_PREFER_TEMPADDR    63 /* int; prefer temporary addresses as
 366                                     * the source address.
 367                                     */
 368
 369 #define IPV6_BINDANY            64 /* bool: allow bind to any address */
 370
 371 #define IPV6_BINDMULTI          65 /* bool; allow multibind to same addr/port */
 372 #define IPV6_RSS_LISTEN_BUCKET  66 /* int; set RSS listen bucket */
 373 #define IPV6_FLOWID             67 /* int; flowid of given socket */
 374 #define IPV6_FLOWTYPE           68 /* int; flowtype of given socket */
 375 #define IPV6_RSSBUCKETID        69 /* int; RSS bucket ID of given socket */
 376 #define IPV6_RECVFLOWID         70 /* bool; receive IP6 flowid/flowtype w/ datagram */
 377 #define IPV6_RECVRSSBUCKETID    71 /* bool; receive IP6 RSS bucket id w/ datagram */
 378
 379 #define IPV6_ORIGDSTADDR        72 /* bool: allow getting dstaddr /port info */
 380 #define IPV6_RECVORIGDSTADDR    IPV6_ORIGDSTADDR
 381
 382 /*
 383  * The following option is private; do not use it from user applications.
 384  * It is deliberately defined to the same value as IP_MSFILTER.
 385  */
 386 #define IPV6_MSFILTER           74 /* struct __msfilterreq;
 387                                     * set/get multicast source filter list.
 388                                     */
 389
 390 /* The following option deals with the 802.1Q Ethernet Priority Code Point */
 391 #define IPV6_VLAN_PCP           75  /* int; set/get PCP used for packet, */
 392                                     /*      -1 use interface default */
 393
 394 /* to define items, should talk with KAME guys first, for *BSD compatibility */
 395
 396 #define IPV6_RTHDR_LOOSE     0 /* this hop need not be a neighbor. XXX old spec */
 397 #define IPV6_RTHDR_STRICT    1 /* this hop must be a neighbor. XXX old spec */
 398 #define IPV6_RTHDR_TYPE_0    0 /* IPv6 routing header type 0 */
 399
 400 /*
 401  * Defaults and limits for options
 402  */
 403 #define IPV6_DEFAULT_MULTICAST_HOPS 1   /* normally limit m'casts to 1 hop */
 404 #define IPV6_DEFAULT_MULTICAST_LOOP 1   /* normally hear sends if a member */
 405
 406 /*
 407  * Limit for IPv6 multicast memberships
 408  */
 409 #define IPV6_MAX_MEMBERSHIPS    4095
 410
 411 /*
 412  * Default resource limits for IPv6 multicast source filtering.
 413  * These may be modified by sysctl.
 414  */
 415 #define IPV6_MAX_GROUP_SRC_FILTER       512     /* sources per group */
 416 #define IPV6_MAX_SOCK_SRC_FILTER        128     /* sources per socket/group */
 417
 418 /*
 419  * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
 420  */
 421 struct ipv6_mreq {
 422         struct in6_addr ipv6mr_multiaddr;
 423         unsigned int    ipv6mr_interface;
 424 };
 425
 426 /*
 427  * IPV6_PKTINFO: Packet information(RFC2292 sec 5)
 428  */
 429 struct in6_pktinfo {
 430         struct in6_addr ipi6_addr;      /* src/dst IPv6 address */
 431         unsigned int    ipi6_ifindex;   /* send/recv interface index */
 432 };
 433
 434 /*
 435  * Control structure for IPV6_RECVPATHMTU socket option.
 436  */
 437 struct ip6_mtuinfo {
 438         struct sockaddr_in6 ip6m_addr;  /* or sockaddr_storage? */
 439         uint32_t ip6m_mtu;
 440 };
 441
 442 /*
 443  * Argument for IPV6_PORTRANGE:
 444  * - which range to search when port is unspecified at bind() or connect()
 445  */
 446 #define IPV6_PORTRANGE_DEFAULT  0       /* default range */
 447 #define IPV6_PORTRANGE_HIGH     1       /* "high" - request firewall bypass */
 448 #define IPV6_PORTRANGE_LOW      2       /* "low" - vouchsafe security */
 449
 450 #if __BSD_VISIBLE
 451 /*
 452  * Definitions for inet6 sysctl operations.
 453  *
 454  * Third level is protocol number.
 455  * Fourth level is desired variable within that protocol.
 456  */
 457 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1)       /* don't list to IPV6PROTO_MAX */
 458
 459 /*
 460  * Names for IP sysctl objects
 461  */
 462 #define IPV6CTL_FORWARDING      1       /* act as router */
 463 #define IPV6CTL_SENDREDIRECTS   2       /* may send redirects when forwarding*/
 464 #define IPV6CTL_DEFHLIM         3       /* default Hop-Limit */
 465 #ifdef notyet
 466 #define IPV6CTL_DEFMTU          4       /* default MTU */
 467 #endif
 468 #define IPV6CTL_FORWSRCRT       5       /* forward source-routed dgrams */
 469 #define IPV6CTL_STATS           6       /* stats */
 470 #define IPV6CTL_MRTSTATS        7       /* multicast forwarding stats */
 471 #define IPV6CTL_MRTPROTO        8       /* multicast routing protocol */
 472 #define IPV6CTL_MAXFRAGPACKETS  9       /* max packets reassembly queue */
 473 #define IPV6CTL_SOURCECHECK     10      /* verify source route and intf */
 474 #define IPV6CTL_SOURCECHECK_LOGINT 11   /* minimume logging interval */
 475 #define IPV6CTL_ACCEPT_RTADV    12
 476                                         /* 13; unused; was: IPV6CTL_KEEPFAITH */
 477 #define IPV6CTL_LOG_INTERVAL    14
 478 #define IPV6CTL_HDRNESTLIMIT    15
 479 #define IPV6CTL_DAD_COUNT       16
 480 #define IPV6CTL_AUTO_FLOWLABEL  17
 481 #define IPV6CTL_DEFMCASTHLIM    18
 482 #define IPV6CTL_GIF_HLIM        19      /* default HLIM for gif encap packet */
 483 #define IPV6CTL_KAME_VERSION    20
 484 #define IPV6CTL_USE_DEPRECATED  21      /* use deprecated addr (RFC2462 5.5.4) */
 485 #define IPV6CTL_RR_PRUNE        22      /* walk timer for router renumbering */
 486 #if 0   /* obsolete */
 487 #define IPV6CTL_MAPPED_ADDR     23
 488 #endif
 489 #define IPV6CTL_V6ONLY          24
 490 /*      IPV6CTL_RTEXPIRE        25      deprecated */
 491 /*      IPV6CTL_RTMINEXPIRE     26      deprecated */
 492 /*      IPV6CTL_RTMAXCACHE      27      deprecated */
 493
 494 #define IPV6CTL_USETEMPADDR     32      /* use temporary addresses (RFC3041) */
 495 #define IPV6CTL_TEMPPLTIME      33      /* preferred lifetime for tmpaddrs */
 496 #define IPV6CTL_TEMPVLTIME      34      /* valid lifetime for tmpaddrs */
 497 #define IPV6CTL_AUTO_LINKLOCAL  35      /* automatic link-local addr assign */
 498 #define IPV6CTL_RIP6STATS       36      /* raw_ip6 stats */
 499 #define IPV6CTL_PREFER_TEMPADDR 37      /* prefer temporary addr as src */
 500 #define IPV6CTL_ADDRCTLPOLICY   38      /* get/set address selection policy */
 501 #define IPV6CTL_USE_DEFAULTZONE 39      /* use default scope zone */
 502
 503 #define IPV6CTL_MAXFRAGS        41      /* max fragments */
 504 #if 0
 505 #define IPV6CTL_IFQ             42      /* ip6intrq node */
 506 #define IPV6CTL_ISATAPRTR       43      /* isatap router */
 507 #endif
 508 #define IPV6CTL_MCAST_PMTU      44      /* enable pMTU discovery for multicast? */
 509
 510 /* New entries should be added here from current IPV6CTL_MAXID value. */
 511 /* to define items, should talk with KAME guys first, for *BSD compatibility */
 512 #define IPV6CTL_STEALTH         45
 513
 514 #define ICMPV6CTL_ND6_ONLINKNSRFC4861   47
 515 #define IPV6CTL_NO_RADR         48      /* No defroute from RA */
 516 #define IPV6CTL_NORBIT_RAIF     49      /* Disable R-bit in NA on RA
 517                                          * receiving IF. */
 518 #define IPV6CTL_RFC6204W3       50      /* Accept defroute even when forwarding
 519                                            enabled */
 520 #define IPV6CTL_INTRQMAXLEN     51      /* max length of IPv6 netisr queue */
 521 #define IPV6CTL_INTRDQMAXLEN    52      /* max length of direct IPv6 netisr
 522                                          * queue */
 523 #define IPV6CTL_MAXFRAGSPERPACKET       53 /* Max fragments per packet */
 524 #define IPV6CTL_MAXFRAGBUCKETSIZE       54 /* Max reassembly queues per bucket */
 525 #define IPV6CTL_MAXID           55
 526 #endif /* __BSD_VISIBLE */
 527
 528 /*
 529  * Since both netinet/ and netinet6/ call into netipsec/ and netpfil/,
 530  * the protocol specific mbuf flags are shared between them.
 531  */
 532 #define M_FASTFWD_OURS          M_PROTO1        /* changed dst to local */
 533 #define M_IP6_NEXTHOP           M_PROTO2        /* explicit ip nexthop */
 534 #define M_IP_NEXTHOP            M_PROTO2        /* explicit ip nexthop */
 535 #define M_SKIP_FIREWALL         M_PROTO3        /* skip firewall processing */
 536 #define M_AUTHIPHDR             M_PROTO4
 537 #define M_DECRYPTED             M_PROTO5
 538 #define M_LOOP                  M_PROTO6
 539 #define M_AUTHIPDGM             M_PROTO7
 540 #define M_RTALERT_MLD           M_PROTO8
 541 #define M_FRAGMENTED            M_PROTO9        /* contained fragment header */
 542
 543 #ifndef _SIZE_T_DECLARED
 544 typedef __size_t        size_t;
 545 #define _SIZE_T_DECLARED
 546 #endif
 547
 548 #ifndef _SOCKLEN_T_DECLARED
 549 typedef __socklen_t     socklen_t;
 550 #define _SOCKLEN_T_DECLARED
 551 #endif
 552
 553 #if __BSD_VISIBLE
 554
 555 __BEGIN_DECLS
 556 struct cmsghdr;
 557
 558 extern int inet6_option_space(int);
 559 extern int inet6_option_init(void *, struct cmsghdr **, int);
 560 extern int inet6_option_append(struct cmsghdr *, const uint8_t *,
 561         int, int);
 562 extern uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int);
 563 extern int inet6_option_next(const struct cmsghdr *, uint8_t **);
 564 extern int inet6_option_find(const struct cmsghdr *, uint8_t **, int);
 565
 566 extern size_t inet6_rthdr_space(int, int);
 567 extern struct cmsghdr *inet6_rthdr_init(void *, int);
 568 extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *,
 569         unsigned int);
 570 extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int);
 571 #if 0 /* not implemented yet */
 572 extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *);
 573 #endif
 574 extern int inet6_rthdr_segments(const struct cmsghdr *);
 575 extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int);
 576 extern int inet6_rthdr_getflags(const struct cmsghdr *, int);
 577
 578 extern int inet6_opt_init(void *, socklen_t);
 579 extern int inet6_opt_append(void *, socklen_t, int, uint8_t, socklen_t,
 580         uint8_t, void **);
 581 extern int inet6_opt_finish(void *, socklen_t, int);
 582 extern int inet6_opt_set_val(void *, int, void *, socklen_t);
 583
 584 extern int inet6_opt_next(void *, socklen_t, int, uint8_t *, socklen_t *,
 585         void **);
 586 extern int inet6_opt_find(void *, socklen_t, int, uint8_t, socklen_t *,
 587         void **);
 588 extern int inet6_opt_get_val(void *, int, void *, socklen_t);
 589 extern socklen_t inet6_rth_space(int, int);
 590 extern void *inet6_rth_init(void *, socklen_t, int, int);
 591 extern int inet6_rth_add(void *, const struct in6_addr *);
 592 extern int inet6_rth_reverse(const void *, void *);
 593 extern int inet6_rth_segments(const void *);
 594 extern struct in6_addr *inet6_rth_getaddr(const void *, int);
 595 __END_DECLS
 596
 597 #endif /* __BSD_VISIBLE */
 598
 599 #ifdef _KERNEL
 600 /* Header file provided outside of Newlib */
 601 #include <machine/_kernel_in6.h>
 602 #endif
 603 #endif /* !_NETINET6_IN6_H_ */