1/* $OpenBSD: in.h,v 1.148 2024/02/13 12:22:09 bluhm Exp $ */ 2/* $NetBSD: in.h,v 1.20 1996/02/13 23:41:47 christos Exp $ */ 3 4/* 5 * Copyright (c) 1982, 1986, 1990, 1993 6 * The Regents of the University of California. 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 University 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 REGENTS 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 REGENTS 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 * Constants and structures defined by the internet system, 35 * Per RFC 790, September 1981, and numerous additions. 36 */ 37 38#ifndef _NETINET_IN_H_ 39#define _NETINET_IN_H_ 40 41#include <sys/cdefs.h> 42 43#ifndef _KERNEL 44#include <sys/types.h> 45 46/* <sys/_endian.h> is pulled in by <sys/types.h> */ 47#ifndef htons 48#define htons(x) __htobe16(x) 49#define htonl(x) __htobe32(x) 50#define ntohs(x) __htobe16(x) 51#define ntohl(x) __htobe32(x) 52#endif 53 54#endif /* _KERNEL */ 55 56#ifndef _SA_FAMILY_T_DEFINED_ 57#define _SA_FAMILY_T_DEFINED_ 58typedef __sa_family_t sa_family_t; /* sockaddr address family type */ 59#endif /* _SA_FAMILY_T_DEFINED_ */ 60 61#ifndef _IN_TYPES_DEFINED_ 62#define _IN_TYPES_DEFINED_ 63typedef __in_addr_t in_addr_t; /* base type for internet address */ 64typedef __in_port_t in_port_t; /* IP port type */ 65#endif 66 67/* 68 * Protocols 69 */ 70#define IPPROTO_IP 0 /* dummy for IP */ 71#define IPPROTO_HOPOPTS IPPROTO_IP /* Hop-by-hop option header */ 72#define IPPROTO_ICMP 1 /* control message protocol */ 73#define IPPROTO_IGMP 2 /* group mgmt protocol */ 74#define IPPROTO_GGP 3 /* gateway^2 (deprecated) */ 75#define IPPROTO_IPIP 4 /* IP inside IP */ 76#define IPPROTO_IPV4 IPPROTO_IPIP /* IP inside IP */ 77#define IPPROTO_TCP 6 /* tcp */ 78#define IPPROTO_EGP 8 /* exterior gateway protocol */ 79#define IPPROTO_PUP 12 /* pup */ 80#define IPPROTO_UDP 17 /* user datagram protocol */ 81#define IPPROTO_IDP 22 /* xns idp */ 82#define IPPROTO_TP 29 /* tp-4 w/ class negotiation */ 83#define IPPROTO_IPV6 41 /* IPv6 in IPv6 */ 84#define IPPROTO_ROUTING 43 /* Routing header */ 85#define IPPROTO_FRAGMENT 44 /* Fragmentation/reassembly header */ 86#define IPPROTO_RSVP 46 /* resource reservation */ 87#define IPPROTO_GRE 47 /* GRE encap, RFCs 1701/1702 */ 88#define IPPROTO_ESP 50 /* Encap. Security Payload */ 89#define IPPROTO_AH 51 /* Authentication header */ 90#define IPPROTO_MOBILE 55 /* IP Mobility, RFC 2004 */ 91#define IPPROTO_ICMPV6 58 /* ICMP for IPv6 */ 92#define IPPROTO_NONE 59 /* No next header */ 93#define IPPROTO_DSTOPTS 60 /* Destination options header */ 94#define IPPROTO_EON 80 /* ISO cnlp */ 95#define IPPROTO_ETHERIP 97 /* Ethernet in IPv4 */ 96#define IPPROTO_ENCAP 98 /* encapsulation header */ 97#define IPPROTO_PIM 103 /* Protocol indep. multicast */ 98#define IPPROTO_IPCOMP 108 /* IP Payload Comp. Protocol */ 99#define IPPROTO_CARP 112 /* CARP */ 100#define IPPROTO_SCTP 132 /* SCTP, RFC 4960 */ 101#define IPPROTO_UDPLITE 136 /* UDP-Lite, RFC 3828 */ 102#define IPPROTO_MPLS 137 /* unicast MPLS packet */ 103#define IPPROTO_PFSYNC 240 /* PFSYNC */ 104#define IPPROTO_RAW 255 /* raw IP packet */ 105 106#define IPPROTO_MAX 256 107 108/* Only used internally, so it can be outside the range of valid IP protocols */ 109#define IPPROTO_DIVERT 258 /* Divert sockets */ 110 111/* 112 * From FreeBSD: 113 * 114 * Local port number conventions: 115 * 116 * When a user does a bind(2) or connect(2) with a port number of zero, 117 * a non-conflicting local port address is chosen. 118 * The default range is IPPORT_RESERVED through 119 * IPPORT_USERRESERVED, although that is settable by sysctl. 120 * 121 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 122 * default assignment range. 123 * 124 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 125 * 126 * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers 127 * into the "high" range. These are reserved for client outbound connections 128 * which do not want to be filtered by any firewalls. 129 * 130 * The value IP_PORTRANGE_LOW changes the range to the "low" are 131 * that is (by convention) restricted to privileged processes. This 132 * convention is based on "vouchsafe" principles only. It is only secure 133 * if you trust the remote host to restrict these ports. 134 * 135 * The default range of ports and the high range can be changed by 136 * sysctl(3). (net.inet.ip.port{hi}{first,last}) 137 * 138 * Changing those values has bad security implications if you are 139 * using a stateless firewall that is allowing packets outside of that 140 * range in order to allow transparent outgoing connections. 141 * 142 * Such a firewall configuration will generally depend on the use of these 143 * default values. If you change them, you may find your Security 144 * Administrator looking for you with a heavy object. 145 */ 146 147/* 148 * Ports < IPPORT_RESERVED are reserved for 149 * privileged processes (e.g. root). 150 * Ports > IPPORT_USERRESERVED are reserved 151 * for servers, not necessarily privileged. 152 */ 153#define IPPORT_RESERVED 1024 154#define IPPORT_USERRESERVED 49151 155 156/* 157 * Default local port range to use by setting IP_PORTRANGE_HIGH 158 */ 159#define IPPORT_HIFIRSTAUTO 49152 160#define IPPORT_HILASTAUTO 65535 161 162#ifndef _IN_ADDR_DECLARED 163#define _IN_ADDR_DECLARED 164/* 165 * IP Version 4 Internet address (a structure for historical reasons) 166 */ 167struct in_addr { 168 in_addr_t s_addr; 169}; 170#endif /* _IN_ADDR_DECLARED */ 171 172/* last return value of *_input(), meaning "all job for this pkt is done". */ 173#define IPPROTO_DONE 257 174 175/* 176 * Definitions of bits in internet address integers. 177 * On subnets, the decomposition of addresses to host and net parts 178 * is done according to subnet mask, not the masks here. 179 * 180 * By byte-swapping the constants, we avoid ever having to byte-swap IP 181 * addresses inside the kernel. Unfortunately, user-level programs rely 182 * on these macros not doing byte-swapping. 183 */ 184#ifdef _KERNEL 185#define __IPADDR(x) ((u_int32_t) htonl((u_int32_t)(x))) 186#else 187#define __IPADDR(x) ((u_int32_t)(x)) 188#endif /* _KERNEL */ 189 190#define IN_CLASSA(i) (((u_int32_t)(i) & __IPADDR(0x80000000)) == \ 191 __IPADDR(0x00000000)) 192#define IN_CLASSA_NET __IPADDR(0xff000000) 193#define IN_CLASSA_NSHIFT 24 194#define IN_CLASSA_HOST __IPADDR(0x00ffffff) 195#define IN_CLASSA_MAX 128 196 197#define IN_CLASSB(i) (((u_int32_t)(i) & __IPADDR(0xc0000000)) == \ 198 __IPADDR(0x80000000)) 199#define IN_CLASSB_NET __IPADDR(0xffff0000) 200#define IN_CLASSB_NSHIFT 16 201#define IN_CLASSB_HOST __IPADDR(0x0000ffff) 202#define IN_CLASSB_MAX 65536 203 204#define IN_CLASSC(i) (((u_int32_t)(i) & __IPADDR(0xe0000000)) == \ 205 __IPADDR(0xc0000000)) 206#define IN_CLASSC_NET __IPADDR(0xffffff00) 207#define IN_CLASSC_NSHIFT 8 208#define IN_CLASSC_HOST __IPADDR(0x000000ff) 209 210#define IN_CLASSD(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \ 211 __IPADDR(0xe0000000)) 212/* These ones aren't really net and host fields, but routing needn't know. */ 213#define IN_CLASSD_NET __IPADDR(0xf0000000) 214#define IN_CLASSD_NSHIFT 28 215#define IN_CLASSD_HOST __IPADDR(0x0fffffff) 216#define IN_MULTICAST(i) IN_CLASSD(i) 217 218#define IN_RFC3021_NET __IPADDR(0xfffffffe) 219#define IN_RFC3021_NSHIFT 31 220#define IN_RFC3021_HOST __IPADDR(0x00000001) 221#define IN_RFC3021_SUBNET(n) (((u_int32_t)(n) & IN_RFC3021_NET) == \ 222 IN_RFC3021_NET) 223 224#define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \ 225 __IPADDR(0xf0000000)) 226#define IN_BADCLASS(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \ 227 __IPADDR(0xf0000000)) 228 229#define IN_LOCAL_GROUP(i) (((u_int32_t)(i) & __IPADDR(0xffffff00)) == \ 230 __IPADDR(0xe0000000)) 231 232#ifdef _KERNEL 233#define IN_CLASSFULBROADCAST(i, b) \ 234 ((IN_CLASSC(b) && (b | IN_CLASSC_HOST) == i) || \ 235 (IN_CLASSB(b) && (b | IN_CLASSB_HOST) == i) || \ 236 (IN_CLASSA(b) && (b | IN_CLASSA_HOST) == i)) 237#endif /* _KERNEL */ 238 239#define INADDR_ANY __IPADDR(0x00000000) 240#define INADDR_LOOPBACK __IPADDR(0x7f000001) 241#define INADDR_BROADCAST __IPADDR(0xffffffff) /* must be masked */ 242#ifndef _KERNEL 243#define INADDR_NONE __IPADDR(0xffffffff) /* -1 return */ 244#endif /* _KERNEL */ 245 246#define INADDR_UNSPEC_GROUP __IPADDR(0xe0000000) /* 224.0.0.0 */ 247#define INADDR_ALLHOSTS_GROUP __IPADDR(0xe0000001) /* 224.0.0.1 */ 248#define INADDR_ALLROUTERS_GROUP __IPADDR(0xe0000002) /* 224.0.0.2 */ 249#define INADDR_CARP_GROUP __IPADDR(0xe0000012) /* 224.0.0.18 */ 250#define INADDR_PFSYNC_GROUP __IPADDR(0xe00000f0) /* 224.0.0.240 */ 251#define INADDR_MAX_LOCAL_GROUP __IPADDR(0xe00000ff) /* 224.0.0.255 */ 252 253#define IN_LOOPBACKNET 127 /* official! */ 254 255/* 256 * IP Version 4 socket address. 257 */ 258struct sockaddr_in { 259 u_int8_t sin_len; 260 sa_family_t sin_family; 261 in_port_t sin_port; 262 struct in_addr sin_addr; 263 int8_t sin_zero[8]; 264}; 265 266/* 267 * Structure used to describe IP options. 268 * Used to store options internally, to pass them to a process, 269 * or to restore options retrieved earlier. 270 * The ip_dst is used for the first-hop gateway when using a source route 271 * (this gets put into the header proper). 272 */ 273struct ip_opts { 274 struct in_addr ip_dst; /* first hop, 0 w/o src rt */ 275#if defined(__cplusplus) 276 int8_t Ip_opts[40]; /* cannot have same name as class */ 277#else 278 int8_t ip_opts[40]; /* actually variable in size */ 279#endif /* defined(__cplusplus) */ 280}; 281 282/* 283 * Options for use with [gs]etsockopt at the IP level. 284 * First word of comment is data type; bool is stored in int. 285 */ 286#define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ 287#define IP_HDRINCL 2 /* int; header is included with data */ 288#define IP_TOS 3 /* int; IP type of service and preced. */ 289#define IP_TTL 4 /* int; IP time to live */ 290#define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ 291#define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ 292#define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ 293#define IP_RETOPTS 8 /* ip_opts; set/get IP options */ 294#define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */ 295#define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ 296#define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */ 297#define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ 298#define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ 299#define IP_PORTRANGE 19 /* int; range to choose for unspec port */ 300#define IP_AUTH_LEVEL 20 /* int; authentication used */ 301#define IP_ESP_TRANS_LEVEL 21 /* int; transport encryption */ 302#define IP_ESP_NETWORK_LEVEL 22 /* int; full-packet encryption */ 303#define IP_IPSEC_LOCAL_ID 23 /* buf; IPsec local ID */ 304#define IP_IPSEC_REMOTE_ID 24 /* buf; IPsec remote ID */ 305#define IP_IPSEC_LOCAL_CRED 25 /* buf; was: IPsec local credentials */ 306#define IP_IPSEC_REMOTE_CRED 26 /* buf; was: IPsec remote credentials */ 307#define IP_IPSEC_LOCAL_AUTH 27 /* buf; was: IPsec local auth material */ 308#define IP_IPSEC_REMOTE_AUTH 28 /* buf; was: IPsec remote auth material */ 309#define IP_IPCOMP_LEVEL 29 /* int; compression used */ 310#define IP_RECVIF 30 /* bool; receive reception if w/dgram */ 311#define IP_RECVTTL 31 /* bool; receive IP TTL w/dgram */ 312#define IP_MINTTL 32 /* minimum TTL for packet or drop */ 313#define IP_RECVDSTPORT 33 /* bool; receive IP dst port w/dgram */ 314#define IP_PIPEX 34 /* bool; using PIPEX */ 315#define IP_RECVRTABLE 35 /* bool; receive rdomain w/dgram */ 316#define IP_IPSECFLOWINFO 36 /* bool; IPsec flow info for dgram */ 317#define IP_IPDEFTTL 37 /* int; IP TTL system default */ 318#define IP_SENDSRCADDR IP_RECVDSTADDR /* struct in_addr; */ 319 /* source address to use */ 320 321#define IP_RTABLE 0x1021 /* int; routing table, see SO_RTABLE */ 322 323#if __BSD_VISIBLE 324/* 325 * Security levels - IPsec, not IPSO 326 */ 327 328#define IPSEC_LEVEL_BYPASS 0x00 /* Bypass policy altogether */ 329#define IPSEC_LEVEL_NONE 0x00 /* Send clear, accept any */ 330#define IPSEC_LEVEL_AVAIL 0x01 /* Send secure if SA available */ 331#define IPSEC_LEVEL_USE 0x02 /* Send secure, accept any */ 332#define IPSEC_LEVEL_REQUIRE 0x03 /* Require secure inbound, also use */ 333#define IPSEC_LEVEL_UNIQUE 0x04 /* Use outbound SA that is unique */ 334#define IPSEC_LEVEL_DEFAULT IPSEC_LEVEL_AVAIL 335 336#define IPSEC_AUTH_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 337#define IPSEC_ESP_TRANS_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 338#define IPSEC_ESP_NETWORK_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 339#define IPSEC_IPCOMP_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 340 341#endif /* __BSD_VISIBLE */ 342 343/* 344 * Defaults and limits for options 345 */ 346#define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */ 347#define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 348/* 349 * The imo_membership vector for each socket starts at IP_MIN_MEMBERSHIPS 350 * and is dynamically allocated at run-time, bounded by IP_MAX_MEMBERSHIPS, 351 * and is reallocated when needed, sized according to a power-of-two increment. 352 */ 353#define IP_MIN_MEMBERSHIPS 15 354#define IP_MAX_MEMBERSHIPS 4095 355 356/* 357 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. 358 */ 359struct ip_mreq { 360 struct in_addr imr_multiaddr; /* IP multicast address of group */ 361 struct in_addr imr_interface; /* local IP address of interface */ 362}; 363 364struct ip_mreqn { 365 struct in_addr imr_multiaddr; /* IP multicast address of group */ 366 struct in_addr imr_address; /* local IP address of interface */ 367 int imr_ifindex; /* interface index */ 368}; 369 370/* 371 * Argument for IP_PORTRANGE: 372 * - which range to search when port is unspecified at bind() or connect() 373 */ 374#define IP_PORTRANGE_DEFAULT 0 /* default range */ 375#define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 376#define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 377 378/* 379 * Buffer lengths for strings containing printable IP addresses 380 */ 381#ifndef INET_ADDRSTRLEN 382#define INET_ADDRSTRLEN 16 383#endif /* INET_ADDRSTRLEN */ 384 385 386#if __BSD_VISIBLE 387/* 388 * Definitions for inet sysctl operations. 389 * 390 * Third level is protocol number. 391 * Fourth level is desired variable within that protocol. 392 */ 393#define IPPROTO_MAXID (IPPROTO_DIVERT + 1) /* don't list to IPPROTO_MAX */ 394 395#define CTL_IPPROTO_NAMES { \ 396 { "ip", CTLTYPE_NODE }, \ 397 { "icmp", CTLTYPE_NODE }, \ 398 { "igmp", CTLTYPE_NODE }, \ 399 { "ggp", CTLTYPE_NODE }, \ 400 { "ipip", CTLTYPE_NODE }, \ 401 { 0, 0 }, \ 402 { "tcp", CTLTYPE_NODE }, \ 403 { 0, 0 }, \ 404 { "egp", CTLTYPE_NODE }, \ 405 { 0, 0 }, \ 406 { 0, 0 }, \ 407 { 0, 0 }, \ 408 { "pup", CTLTYPE_NODE }, \ 409 { 0, 0 }, \ 410 { 0, 0 }, \ 411 { 0, 0 }, \ 412 { 0, 0 }, \ 413 { "udp", CTLTYPE_NODE }, \ 414 { 0, 0 }, \ 415 { 0, 0 }, \ 416 { 0, 0 }, \ 417 { 0, 0 }, \ 418 { 0, 0 }, \ 419 { 0, 0 }, \ 420 { 0, 0 }, \ 421 { 0, 0 }, \ 422 { 0, 0 }, \ 423 { 0, 0 }, \ 424 { 0, 0 }, \ 425 { 0, 0 }, \ 426 { 0, 0 }, \ 427 { 0, 0 }, \ 428 { 0, 0 }, \ 429 { 0, 0 }, \ 430 { 0, 0 }, \ 431 { 0, 0 }, \ 432 { 0, 0 }, \ 433 { 0, 0 }, \ 434 { 0, 0 }, \ 435 { 0, 0 }, \ 436 { 0, 0 }, \ 437 { 0, 0 }, \ 438 { 0, 0 }, \ 439 { 0, 0 }, \ 440 { 0, 0 }, \ 441 { 0, 0 }, \ 442 { 0, 0 }, \ 443 { "gre", CTLTYPE_NODE }, \ 444 { 0, 0 }, \ 445 { 0, 0 }, \ 446 { "esp", CTLTYPE_NODE }, \ 447 { "ah", CTLTYPE_NODE }, \ 448 { 0, 0 }, \ 449 { 0, 0 }, \ 450 { 0, 0 }, \ 451 { 0, 0 }, \ 452 { 0, 0 }, \ 453 { 0, 0 }, \ 454 { 0, 0 }, \ 455 { 0, 0 }, \ 456 { 0, 0 }, \ 457 { 0, 0 }, \ 458 { 0, 0 }, \ 459 { 0, 0 }, \ 460 { 0, 0 }, \ 461 { 0, 0 }, \ 462 { 0, 0 }, \ 463 { 0, 0 }, \ 464 { 0, 0 }, \ 465 { 0, 0 }, \ 466 { 0, 0 }, \ 467 { 0, 0 }, \ 468 { 0, 0 }, \ 469 { 0, 0 }, \ 470 { 0, 0 }, \ 471 { 0, 0 }, \ 472 { 0, 0 }, \ 473 { 0, 0 }, \ 474 { 0, 0 }, \ 475 { 0, 0 }, \ 476 { 0, 0 }, \ 477 { 0, 0 }, \ 478 { 0, 0 }, \ 479 { 0, 0 }, \ 480 { 0, 0 }, \ 481 { 0, 0 }, \ 482 { 0, 0 }, \ 483 { 0, 0 }, \ 484 { 0, 0 }, \ 485 { 0, 0 }, \ 486 { 0, 0 }, \ 487 { 0, 0 }, \ 488 { 0, 0 }, \ 489 { 0, 0 }, \ 490 { 0, 0 }, \ 491 { 0, 0 }, \ 492 { 0, 0 }, \ 493 { "etherip", CTLTYPE_NODE }, \ 494 { 0, 0 }, \ 495 { 0, 0 }, \ 496 { 0, 0 }, \ 497 { 0, 0 }, \ 498 { 0, 0 }, \ 499 { 0, 0 }, \ 500 { 0, 0 }, \ 501 { 0, 0 }, \ 502 { 0, 0 }, \ 503 { 0, 0 }, \ 504 { "ipcomp", CTLTYPE_NODE }, \ 505 { 0, 0 }, \ 506 { 0, 0 }, \ 507 { 0, 0 }, \ 508 { "carp", CTLTYPE_NODE }, \ 509 { 0, 0 }, \ 510 { 0, 0 }, \ 511 { 0, 0 }, \ 512 { 0, 0 }, \ 513 { 0, 0 }, \ 514 { 0, 0 }, \ 515 { 0, 0 }, \ 516 { 0, 0 }, \ 517 { 0, 0 }, \ 518 { 0, 0 }, \ 519 { 0, 0 }, \ 520 { 0, 0 }, \ 521 { 0, 0 }, \ 522 { 0, 0 }, \ 523 { 0, 0 }, \ 524 { 0, 0 }, \ 525 { 0, 0 }, \ 526 { 0, 0 }, \ 527 { 0, 0 }, \ 528 { 0, 0 }, \ 529 { 0, 0 }, \ 530 { 0, 0 }, \ 531 { 0, 0 }, \ 532 { 0, 0 }, \ 533 { 0, 0 }, \ 534 { 0, 0 }, \ 535 { 0, 0 }, \ 536 { 0, 0 }, \ 537 { 0, 0 }, \ 538 { 0, 0 }, \ 539 { 0, 0 }, \ 540 { 0, 0 }, \ 541 { 0, 0 }, \ 542 { 0, 0 }, \ 543 { 0, 0 }, \ 544 { 0, 0 }, \ 545 { 0, 0 }, \ 546 { 0, 0 }, \ 547 { 0, 0 }, \ 548 { 0, 0 }, \ 549 { 0, 0 }, \ 550 { 0, 0 }, \ 551 { 0, 0 }, \ 552 { 0, 0 }, \ 553 { 0, 0 }, \ 554 { 0, 0 }, \ 555 { 0, 0 }, \ 556 { 0, 0 }, \ 557 { 0, 0 }, \ 558 { 0, 0 }, \ 559 { 0, 0 }, \ 560 { 0, 0 }, \ 561 { 0, 0 }, \ 562 { 0, 0 }, \ 563 { 0, 0 }, \ 564 { 0, 0 }, \ 565 { 0, 0 }, \ 566 { 0, 0 }, \ 567 { 0, 0 }, \ 568 { 0, 0 }, \ 569 { 0, 0 }, \ 570 { 0, 0 }, \ 571 { 0, 0 }, \ 572 { 0, 0 }, \ 573 { 0, 0 }, \ 574 { 0, 0 }, \ 575 { 0, 0 }, \ 576 { 0, 0 }, \ 577 { 0, 0 }, \ 578 { 0, 0 }, \ 579 { 0, 0 }, \ 580 { 0, 0 }, \ 581 { 0, 0 }, \ 582 { 0, 0 }, \ 583 { 0, 0 }, \ 584 { 0, 0 }, \ 585 { 0, 0 }, \ 586 { 0, 0 }, \ 587 { 0, 0 }, \ 588 { 0, 0 }, \ 589 { 0, 0 }, \ 590 { 0, 0 }, \ 591 { 0, 0 }, \ 592 { 0, 0 }, \ 593 { 0, 0 }, \ 594 { 0, 0 }, \ 595 { 0, 0 }, \ 596 { 0, 0 }, \ 597 { 0, 0 }, \ 598 { 0, 0 }, \ 599 { 0, 0 }, \ 600 { 0, 0 }, \ 601 { 0, 0 }, \ 602 { 0, 0 }, \ 603 { 0, 0 }, \ 604 { 0, 0 }, \ 605 { 0, 0 }, \ 606 { 0, 0 }, \ 607 { 0, 0 }, \ 608 { 0, 0 }, \ 609 { 0, 0 }, \ 610 { 0, 0 }, \ 611 { 0, 0 }, \ 612 { 0, 0 }, \ 613 { 0, 0 }, \ 614 { 0, 0 }, \ 615 { 0, 0 }, \ 616 { 0, 0 }, \ 617 { 0, 0 }, \ 618 { 0, 0 }, \ 619 { 0, 0 }, \ 620 { 0, 0 }, \ 621 { 0, 0 }, \ 622 { 0, 0 }, \ 623 { 0, 0 }, \ 624 { 0, 0 }, \ 625 { 0, 0 }, \ 626 { 0, 0 }, \ 627 { 0, 0 }, \ 628 { 0, 0 }, \ 629 { 0, 0 }, \ 630 { 0, 0 }, \ 631 { 0, 0 }, \ 632 { 0, 0 }, \ 633 { 0, 0 }, \ 634 { 0, 0 }, \ 635 { 0, 0 }, \ 636 { "pfsync", CTLTYPE_NODE }, \ 637 { 0, 0 }, \ 638 { 0, 0 }, \ 639 { 0, 0 }, \ 640 { 0, 0 }, \ 641 { 0, 0 }, \ 642 { 0, 0 }, \ 643 { 0, 0 }, \ 644 { 0, 0 }, \ 645 { 0, 0 }, \ 646 { 0, 0 }, \ 647 { 0, 0 }, \ 648 { 0, 0 }, \ 649 { 0, 0 }, \ 650 { 0, 0 }, \ 651 { 0, 0 }, \ 652 { 0, 0 }, \ 653 { 0, 0 }, \ 654 { "divert", CTLTYPE_NODE }, \ 655} 656 657/* 658 * Names for IP sysctl objects 659 */ 660#define IPCTL_FORWARDING 1 /* act as router */ 661#define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */ 662#define IPCTL_DEFTTL 3 /* default TTL */ 663#define IPCTL_SOURCEROUTE 5 /* may perform source routes */ 664#define IPCTL_DIRECTEDBCAST 6 /* default broadcast behavior */ 665#define IPCTL_IPPORT_FIRSTAUTO 7 666#define IPCTL_IPPORT_LASTAUTO 8 667#define IPCTL_IPPORT_HIFIRSTAUTO 9 668#define IPCTL_IPPORT_HILASTAUTO 10 669#define IPCTL_IPPORT_MAXQUEUE 11 670#define IPCTL_ENCDEBUG 12 671#define IPCTL_IPSEC_STATS 13 672#define IPCTL_IPSEC_EXPIRE_ACQUIRE 14 /* How long to wait for key mgmt. */ 673#define IPCTL_IPSEC_EMBRYONIC_SA_TIMEOUT 15 /* new SA lifetime */ 674#define IPCTL_IPSEC_REQUIRE_PFS 16 675#define IPCTL_IPSEC_SOFT_ALLOCATIONS 17 676#define IPCTL_IPSEC_ALLOCATIONS 18 677#define IPCTL_IPSEC_SOFT_BYTES 19 678#define IPCTL_IPSEC_BYTES 20 679#define IPCTL_IPSEC_TIMEOUT 21 680#define IPCTL_IPSEC_SOFT_TIMEOUT 22 681#define IPCTL_IPSEC_SOFT_FIRSTUSE 23 682#define IPCTL_IPSEC_FIRSTUSE 24 683#define IPCTL_IPSEC_ENC_ALGORITHM 25 684#define IPCTL_IPSEC_AUTH_ALGORITHM 26 685#define IPCTL_MTUDISC 27 /* allow path MTU discovery */ 686#define IPCTL_MTUDISCTIMEOUT 28 /* allow path MTU discovery */ 687#define IPCTL_IPSEC_IPCOMP_ALGORITHM 29 688#define IPCTL_IFQUEUE 30 689#define IPCTL_MFORWARDING 31 690#define IPCTL_MULTIPATH 32 691#define IPCTL_STATS 33 /* IP statistics */ 692#define IPCTL_MRTPROTO 34 /* type of multicast */ 693#define IPCTL_MRTSTATS 35 694#define IPCTL_ARPQUEUED 36 695#define IPCTL_MRTMFC 37 696#define IPCTL_MRTVIF 38 697#define IPCTL_ARPTIMEOUT 39 698#define IPCTL_ARPDOWN 40 699#define IPCTL_ARPQUEUE 41 700#define IPCTL_MAXID 42 701 702#define IPCTL_NAMES { \ 703 { 0, 0 }, \ 704 { "forwarding", CTLTYPE_INT }, \ 705 { "redirect", CTLTYPE_INT }, \ 706 { "ttl", CTLTYPE_INT }, \ 707 /* { "mtu", CTLTYPE_INT }, */ { 0, 0 }, \ 708 { "sourceroute", CTLTYPE_INT }, \ 709 { "directed-broadcast", CTLTYPE_INT }, \ 710 { "portfirst", CTLTYPE_INT }, \ 711 { "portlast", CTLTYPE_INT }, \ 712 { "porthifirst", CTLTYPE_INT }, \ 713 { "porthilast", CTLTYPE_INT }, \ 714 { "maxqueue", CTLTYPE_INT }, \ 715 { "encdebug", CTLTYPE_INT }, \ 716 { 0, 0 /* ipsecstat */ }, \ 717 { "ipsec-expire-acquire", CTLTYPE_INT }, \ 718 { "ipsec-invalid-life", CTLTYPE_INT }, \ 719 { "ipsec-pfs", CTLTYPE_INT }, \ 720 { "ipsec-soft-allocs", CTLTYPE_INT }, \ 721 { "ipsec-allocs", CTLTYPE_INT }, \ 722 { "ipsec-soft-bytes", CTLTYPE_INT }, \ 723 { "ipsec-bytes", CTLTYPE_INT }, \ 724 { "ipsec-timeout", CTLTYPE_INT }, \ 725 { "ipsec-soft-timeout", CTLTYPE_INT }, \ 726 { "ipsec-soft-firstuse", CTLTYPE_INT }, \ 727 { "ipsec-firstuse", CTLTYPE_INT }, \ 728 { "ipsec-enc-alg", CTLTYPE_STRING }, \ 729 { "ipsec-auth-alg", CTLTYPE_STRING }, \ 730 { "mtudisc", CTLTYPE_INT }, \ 731 { "mtudisctimeout", CTLTYPE_INT }, \ 732 { "ipsec-comp-alg", CTLTYPE_STRING }, \ 733 { "ifq", CTLTYPE_NODE }, \ 734 { "mforwarding", CTLTYPE_INT }, \ 735 { "multipath", CTLTYPE_INT }, \ 736 { "stats", CTLTYPE_STRUCT }, \ 737 { "mrtproto", CTLTYPE_INT }, \ 738 { "mrtstats", CTLTYPE_STRUCT }, \ 739 { "arpqueued", CTLTYPE_INT }, \ 740 { "mrtmfc", CTLTYPE_STRUCT }, \ 741 { "mrtvif", CTLTYPE_STRUCT }, \ 742 { "arptimeout", CTLTYPE_INT }, \ 743 { "arpdown", CTLTYPE_INT }, \ 744 { "arpq", CTLTYPE_NODE }, \ 745} 746 747#endif /* __BSD_VISIBLE */ 748 749/* INET6 stuff */ 750#define __KAME_NETINET_IN_H_INCLUDED_ 751#include <netinet6/in6.h> 752#undef __KAME_NETINET_IN_H_INCLUDED_ 753 754#ifndef _KERNEL 755#if __BSD_VISIBLE 756__BEGIN_DECLS 757int bindresvport(int, struct sockaddr_in *); 758struct sockaddr; 759int bindresvport_sa(int, struct sockaddr *); 760__END_DECLS 761#endif /* __BSD_VISIBLE */ 762#endif /* !_KERNEL */ 763 764#ifdef _KERNEL 765extern const u_char inetctlerrmap[]; 766extern const struct in_addr zeroin_addr; 767 768struct mbuf; 769struct sockaddr; 770struct sockaddr_in; 771struct ifaddr; 772struct in_ifaddr; 773struct route; 774 775void ipv4_input(struct ifnet *, struct mbuf *); 776struct mbuf * 777 ipv4_check(struct ifnet *, struct mbuf *); 778 779int in_broadcast(struct in_addr, u_int); 780int in_canforward(struct in_addr); 781int in_cksum(struct mbuf *, int); 782int in4_cksum(struct mbuf *, u_int8_t, int, int); 783void in_hdr_cksum_out(struct mbuf *, struct ifnet *); 784void in_proto_cksum_out(struct mbuf *, struct ifnet *); 785int in_ifcap_cksum(struct mbuf *, struct ifnet *, int); 786void in_ifdetach(struct ifnet *); 787int in_mask2len(struct in_addr *); 788void in_len2mask(struct in_addr *, int); 789int in_nam2sin(const struct mbuf *, struct sockaddr_in **); 790int in_sa2sin(struct sockaddr *, struct sockaddr_in **); 791 792char *inet_ntoa(struct in_addr); 793int inet_nat64(int, const void *, void *, const void *, u_int8_t); 794int inet_nat46(int, const void *, void *, const void *, u_int8_t); 795 796const char *inet_ntop(int, const void *, char *, socklen_t); 797const char *sockaddr_ntop(struct sockaddr *, char *, size_t); 798 799#define in_hosteq(s,t) ((s).s_addr == (t).s_addr) 800#define in_nullhost(x) ((x).s_addr == INADDR_ANY) 801 802/* 803 * Convert between address family specific and general structs. 804 * Inline functions check the source type and are stricter than 805 * casts or defines. 806 */ 807 808static inline struct sockaddr_in * 809satosin(struct sockaddr *sa) 810{ 811 return ((struct sockaddr_in *)(sa)); 812} 813 814static inline const struct sockaddr_in * 815satosin_const(const struct sockaddr *sa) 816{ 817 return ((const struct sockaddr_in *)(sa)); 818} 819 820static inline struct sockaddr * 821sintosa(struct sockaddr_in *sin) 822{ 823 return ((struct sockaddr *)(sin)); 824} 825 826static inline struct in_ifaddr * 827ifatoia(struct ifaddr *ifa) 828{ 829 return ((struct in_ifaddr *)(ifa)); 830} 831#endif /* _KERNEL */ 832#endif /* _NETINET_IN_H_ */ 833