1 /* $OpenBSD: in.h,v 1.118 2016/08/16 22:21:17 vgross 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_ 58 typedef __sa_family_t sa_family_t; /* sockaddr address family type */ 59 #endif /* _SA_FAMILY_T_DEFINED_ */ 60 61 /* 62 * Protocols 63 */ 64 #define IPPROTO_IP 0 /* dummy for IP */ 65 #define IPPROTO_HOPOPTS IPPROTO_IP /* Hop-by-hop option header */ 66 #define IPPROTO_ICMP 1 /* control message protocol */ 67 #define IPPROTO_IGMP 2 /* group mgmt protocol */ 68 #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */ 69 #define IPPROTO_IPIP 4 /* IP inside IP */ 70 #define IPPROTO_IPV4 IPPROTO_IPIP /* IP inside IP */ 71 #define IPPROTO_TCP 6 /* tcp */ 72 #define IPPROTO_EGP 8 /* exterior gateway protocol */ 73 #define IPPROTO_PUP 12 /* pup */ 74 #define IPPROTO_UDP 17 /* user datagram protocol */ 75 #define IPPROTO_IDP 22 /* xns idp */ 76 #define IPPROTO_TP 29 /* tp-4 w/ class negotiation */ 77 #define IPPROTO_IPV6 41 /* IPv6 in IPv6 */ 78 #define IPPROTO_ROUTING 43 /* Routing header */ 79 #define IPPROTO_FRAGMENT 44 /* Fragmentation/reassembly header */ 80 #define IPPROTO_RSVP 46 /* resource reservation */ 81 #define IPPROTO_GRE 47 /* GRE encap, RFCs 1701/1702 */ 82 #define IPPROTO_ESP 50 /* Encap. Security Payload */ 83 #define IPPROTO_AH 51 /* Authentication header */ 84 #define IPPROTO_MOBILE 55 /* IP Mobility, RFC 2004 */ 85 #define IPPROTO_ICMPV6 58 /* ICMP for IPv6 */ 86 #define IPPROTO_NONE 59 /* No next header */ 87 #define IPPROTO_DSTOPTS 60 /* Destination options header */ 88 #define IPPROTO_EON 80 /* ISO cnlp */ 89 #define IPPROTO_ETHERIP 97 /* Ethernet in IPv4 */ 90 #define IPPROTO_ENCAP 98 /* encapsulation header */ 91 #define IPPROTO_PIM 103 /* Protocol indep. multicast */ 92 #define IPPROTO_IPCOMP 108 /* IP Payload Comp. Protocol */ 93 #define IPPROTO_CARP 112 /* CARP */ 94 #define IPPROTO_MPLS 137 /* unicast MPLS packet */ 95 #define IPPROTO_PFSYNC 240 /* PFSYNC */ 96 #define IPPROTO_RAW 255 /* raw IP packet */ 97 98 #define IPPROTO_MAX 256 99 100 /* Only used internally, so it can be outside the range of valid IP protocols */ 101 #define IPPROTO_DIVERT 258 /* Divert sockets */ 102 103 /* 104 * From FreeBSD: 105 * 106 * Local port number conventions: 107 * 108 * When a user does a bind(2) or connect(2) with a port number of zero, 109 * a non-conflicting local port address is chosen. 110 * The default range is IPPORT_RESERVED through 111 * IPPORT_USERRESERVED, although that is settable by sysctl. 112 * 113 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 114 * default assignment range. 115 * 116 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 117 * 118 * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers 119 * into the "high" range. These are reserved for client outbound connections 120 * which do not want to be filtered by any firewalls. 121 * 122 * The value IP_PORTRANGE_LOW changes the range to the "low" are 123 * that is (by convention) restricted to privileged processes. This 124 * convention is based on "vouchsafe" principles only. It is only secure 125 * if you trust the remote host to restrict these ports. 126 * 127 * The default range of ports and the high range can be changed by 128 * sysctl(3). (net.inet.ip.port{hi}{first,last}) 129 * 130 * Changing those values has bad security implications if you are 131 * using a a stateless firewall that is allowing packets outside of that 132 * range in order to allow transparent outgoing connections. 133 * 134 * Such a firewall configuration will generally depend on the use of these 135 * default values. If you change them, you may find your Security 136 * Administrator looking for you with a heavy object. 137 */ 138 139 /* 140 * Ports < IPPORT_RESERVED are reserved for 141 * privileged processes (e.g. root). 142 * Ports > IPPORT_USERRESERVED are reserved 143 * for servers, not necessarily privileged. 144 */ 145 #define IPPORT_RESERVED 1024 146 #define IPPORT_USERRESERVED 49151 147 148 /* 149 * Default local port range to use by setting IP_PORTRANGE_HIGH 150 */ 151 #define IPPORT_HIFIRSTAUTO 49152 152 #define IPPORT_HILASTAUTO 65535 153 154 #ifndef _IN_ADDR_DECLARED 155 #define _IN_ADDR_DECLARED 156 /* 157 * IP Version 4 Internet address (a structure for historical reasons) 158 */ 159 struct in_addr { 160 in_addr_t s_addr; 161 }; 162 #endif /* _IN_ADDR_DECLARED */ 163 164 /* last return value of *_input(), meaning "all job for this pkt is done". */ 165 #define IPPROTO_DONE 257 166 167 /* 168 * Definitions of bits in internet address integers. 169 * On subnets, the decomposition of addresses to host and net parts 170 * is done according to subnet mask, not the masks here. 171 * 172 * By byte-swapping the constants, we avoid ever having to byte-swap IP 173 * addresses inside the kernel. Unfortunately, user-level programs rely 174 * on these macros not doing byte-swapping. 175 */ 176 #ifdef _KERNEL 177 #define __IPADDR(x) ((u_int32_t) htonl((u_int32_t)(x))) 178 #else 179 #define __IPADDR(x) ((u_int32_t)(x)) 180 #endif /* _KERNEL */ 181 182 #define IN_CLASSA(i) (((u_int32_t)(i) & __IPADDR(0x80000000)) == \ 183 __IPADDR(0x00000000)) 184 #define IN_CLASSA_NET __IPADDR(0xff000000) 185 #define IN_CLASSA_NSHIFT 24 186 #define IN_CLASSA_HOST __IPADDR(0x00ffffff) 187 #define IN_CLASSA_MAX 128 188 189 #define IN_CLASSB(i) (((u_int32_t)(i) & __IPADDR(0xc0000000)) == \ 190 __IPADDR(0x80000000)) 191 #define IN_CLASSB_NET __IPADDR(0xffff0000) 192 #define IN_CLASSB_NSHIFT 16 193 #define IN_CLASSB_HOST __IPADDR(0x0000ffff) 194 #define IN_CLASSB_MAX 65536 195 196 #define IN_CLASSC(i) (((u_int32_t)(i) & __IPADDR(0xe0000000)) == \ 197 __IPADDR(0xc0000000)) 198 #define IN_CLASSC_NET __IPADDR(0xffffff00) 199 #define IN_CLASSC_NSHIFT 8 200 #define IN_CLASSC_HOST __IPADDR(0x000000ff) 201 202 #define IN_CLASSD(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \ 203 __IPADDR(0xe0000000)) 204 /* These ones aren't really net and host fields, but routing needn't know. */ 205 #define IN_CLASSD_NET __IPADDR(0xf0000000) 206 #define IN_CLASSD_NSHIFT 28 207 #define IN_CLASSD_HOST __IPADDR(0x0fffffff) 208 #define IN_MULTICAST(i) IN_CLASSD(i) 209 210 #define IN_RFC3021_NET __IPADDR(0xfffffffe) 211 #define IN_RFC3021_NSHIFT 31 212 #define IN_RFC3021_HOST __IPADDR(0x00000001) 213 #define IN_RFC3021_SUBNET(n) (((u_int32_t)(n) & IN_RFC3021_NET) == \ 214 IN_RFC3021_NET) 215 216 #define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \ 217 __IPADDR(0xf0000000)) 218 #define IN_BADCLASS(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \ 219 __IPADDR(0xf0000000)) 220 221 #define IN_LOCAL_GROUP(i) (((u_int32_t)(i) & __IPADDR(0xffffff00)) == \ 222 __IPADDR(0xe0000000)) 223 224 #ifdef _KERNEL 225 #define IN_CLASSFULBROADCAST(i, b) \ 226 ((IN_CLASSC(b) && (b | IN_CLASSC_HOST) == i) || \ 227 (IN_CLASSB(b) && (b | IN_CLASSB_HOST) == i) || \ 228 (IN_CLASSA(b) && (b | IN_CLASSA_HOST) == i)) 229 #endif /* _KERNEL */ 230 231 #define INADDR_ANY __IPADDR(0x00000000) 232 #define INADDR_LOOPBACK __IPADDR(0x7f000001) 233 #define INADDR_BROADCAST __IPADDR(0xffffffff) /* must be masked */ 234 #ifndef _KERNEL 235 #define INADDR_NONE __IPADDR(0xffffffff) /* -1 return */ 236 #endif /* _KERNEL */ 237 238 #define INADDR_UNSPEC_GROUP __IPADDR(0xe0000000) /* 224.0.0.0 */ 239 #define INADDR_ALLHOSTS_GROUP __IPADDR(0xe0000001) /* 224.0.0.1 */ 240 #define INADDR_ALLROUTERS_GROUP __IPADDR(0xe0000002) /* 224.0.0.2 */ 241 #define INADDR_CARP_GROUP __IPADDR(0xe0000012) /* 224.0.0.18 */ 242 #define INADDR_PFSYNC_GROUP __IPADDR(0xe00000f0) /* 224.0.0.240 */ 243 #define INADDR_MAX_LOCAL_GROUP __IPADDR(0xe00000ff) /* 224.0.0.255 */ 244 245 #define IN_LOOPBACKNET 127 /* official! */ 246 247 /* 248 * IP Version 4 socket address. 249 */ 250 struct sockaddr_in { 251 u_int8_t sin_len; 252 sa_family_t sin_family; 253 in_port_t sin_port; 254 struct in_addr sin_addr; 255 int8_t sin_zero[8]; 256 }; 257 258 /* 259 * Structure used to describe IP options. 260 * Used to store options internally, to pass them to a process, 261 * or to restore options retrieved earlier. 262 * The ip_dst is used for the first-hop gateway when using a source route 263 * (this gets put into the header proper). 264 */ 265 struct ip_opts { 266 struct in_addr ip_dst; /* first hop, 0 w/o src rt */ 267 #if defined(__cplusplus) 268 int8_t Ip_opts[40]; /* cannot have same name as class */ 269 #else 270 int8_t ip_opts[40]; /* actually variable in size */ 271 #endif /* defined(__cplusplus) */ 272 }; 273 274 /* 275 * Options for use with [gs]etsockopt at the IP level. 276 * First word of comment is data type; bool is stored in int. 277 */ 278 #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ 279 #define IP_HDRINCL 2 /* int; header is included with data */ 280 #define IP_TOS 3 /* int; IP type of service and preced. */ 281 #define IP_TTL 4 /* int; IP time to live */ 282 #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ 283 #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ 284 #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ 285 #define IP_RETOPTS 8 /* ip_opts; set/get IP options */ 286 #define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */ 287 #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ 288 #define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */ 289 #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ 290 #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ 291 #define IP_PORTRANGE 19 /* int; range to choose for unspec port */ 292 #define IP_AUTH_LEVEL 20 /* int; authentication used */ 293 #define IP_ESP_TRANS_LEVEL 21 /* int; transport encryption */ 294 #define IP_ESP_NETWORK_LEVEL 22 /* int; full-packet encryption */ 295 #define IP_IPSEC_LOCAL_ID 23 /* buf; IPsec local ID */ 296 #define IP_IPSEC_REMOTE_ID 24 /* buf; IPsec remote ID */ 297 #define IP_IPSEC_LOCAL_CRED 25 /* buf; was: IPsec local credentials */ 298 #define IP_IPSEC_REMOTE_CRED 26 /* buf; was: IPsec remote credentials */ 299 #define IP_IPSEC_LOCAL_AUTH 27 /* buf; was: IPsec local auth material */ 300 #define IP_IPSEC_REMOTE_AUTH 28 /* buf; was: IPsec remote auth material */ 301 #define IP_IPCOMP_LEVEL 29 /* int; compression used */ 302 #define IP_RECVIF 30 /* bool; receive reception if w/dgram */ 303 #define IP_RECVTTL 31 /* bool; receive IP TTL w/dgram */ 304 #define IP_MINTTL 32 /* minimum TTL for packet or drop */ 305 #define IP_RECVDSTPORT 33 /* bool; receive IP dst port w/dgram */ 306 #define IP_PIPEX 34 /* bool; using PIPEX */ 307 #define IP_RECVRTABLE 35 /* bool; receive rdomain w/dgram */ 308 #define IP_IPSECFLOWINFO 36 /* bool; IPsec flow info for dgram */ 309 #define IP_IPDEFTTL 37 /* int; IP TTL system default */ 310 #define IP_SENDSRCADDR IP_RECVDSTADDR /* struct in_addr; */ 311 /* source address to use */ 312 313 #define IP_RTABLE 0x1021 /* int; routing table, see SO_RTABLE */ 314 #define IP_DIVERTFL 0x1022 /* int; divert direction flag opt */ 315 316 /* Values used by IP_DIVERTFL socket option */ 317 #define IPPROTO_DIVERT_RESP 0x01 /* divert response packets */ 318 #define IPPROTO_DIVERT_INIT 0x02 /* divert packets initial direction */ 319 320 #if __BSD_VISIBLE 321 /* 322 * Security levels - IPsec, not IPSO 323 */ 324 325 #define IPSEC_LEVEL_BYPASS 0x00 /* Bypass policy altogether */ 326 #define IPSEC_LEVEL_NONE 0x00 /* Send clear, accept any */ 327 #define IPSEC_LEVEL_AVAIL 0x01 /* Send secure if SA available */ 328 #define IPSEC_LEVEL_USE 0x02 /* Send secure, accept any */ 329 #define IPSEC_LEVEL_REQUIRE 0x03 /* Require secure inbound, also use */ 330 #define IPSEC_LEVEL_UNIQUE 0x04 /* Use outbound SA that is unique */ 331 #define IPSEC_LEVEL_DEFAULT IPSEC_LEVEL_AVAIL 332 333 #define IPSEC_AUTH_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 334 #define IPSEC_ESP_TRANS_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 335 #define IPSEC_ESP_NETWORK_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 336 #define IPSEC_IPCOMP_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 337 338 #endif /* __BSD_VISIBLE */ 339 340 /* 341 * Defaults and limits for options 342 */ 343 #define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */ 344 #define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 345 /* 346 * The imo_membership vector for each socket starts at IP_MIN_MEMBERSHIPS 347 * and is dynamically allocated at run-time, bounded by IP_MAX_MEMBERSHIPS, 348 * and is reallocated when needed, sized according to a power-of-two increment. 349 */ 350 #define IP_MIN_MEMBERSHIPS 15 351 #define IP_MAX_MEMBERSHIPS 4095 352 353 /* 354 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. 355 */ 356 struct ip_mreq { 357 struct in_addr imr_multiaddr; /* IP multicast address of group */ 358 struct in_addr imr_interface; /* local IP address of interface */ 359 }; 360 361 /* 362 * Argument for IP_PORTRANGE: 363 * - which range to search when port is unspecified at bind() or connect() 364 */ 365 #define IP_PORTRANGE_DEFAULT 0 /* default range */ 366 #define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 367 #define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 368 369 /* 370 * Buffer lengths for strings containing printable IP addresses 371 */ 372 #ifndef INET_ADDRSTRLEN 373 #define INET_ADDRSTRLEN 16 374 #endif /* INET_ADDRSTRLEN */ 375 376 377 #if __BSD_VISIBLE 378 /* 379 * Definitions for inet sysctl operations. 380 * 381 * Third level is protocol number. 382 * Fourth level is desired variable within that protocol. 383 */ 384 #define IPPROTO_MAXID (IPPROTO_DIVERT + 1) /* don't list to IPPROTO_MAX */ 385 386 #define CTL_IPPROTO_NAMES { \ 387 { "ip", CTLTYPE_NODE }, \ 388 { "icmp", CTLTYPE_NODE }, \ 389 { "igmp", CTLTYPE_NODE }, \ 390 { "ggp", CTLTYPE_NODE }, \ 391 { "ipip", CTLTYPE_NODE }, \ 392 { 0, 0 }, \ 393 { "tcp", CTLTYPE_NODE }, \ 394 { 0, 0 }, \ 395 { "egp", CTLTYPE_NODE }, \ 396 { 0, 0 }, \ 397 { 0, 0 }, \ 398 { 0, 0 }, \ 399 { "pup", CTLTYPE_NODE }, \ 400 { 0, 0 }, \ 401 { 0, 0 }, \ 402 { 0, 0 }, \ 403 { 0, 0 }, \ 404 { "udp", CTLTYPE_NODE }, \ 405 { 0, 0 }, \ 406 { 0, 0 }, \ 407 { 0, 0 }, \ 408 { 0, 0 }, \ 409 { 0, 0 }, \ 410 { 0, 0 }, \ 411 { 0, 0 }, \ 412 { 0, 0 }, \ 413 { 0, 0 }, \ 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 { "gre", CTLTYPE_NODE }, \ 435 { 0, 0 }, \ 436 { 0, 0 }, \ 437 { "esp", CTLTYPE_NODE }, \ 438 { "ah", CTLTYPE_NODE }, \ 439 { 0, 0 }, \ 440 { 0, 0 }, \ 441 { 0, 0 }, \ 442 { "mobileip", CTLTYPE_NODE }, \ 443 { 0, 0 }, \ 444 { 0, 0 }, \ 445 { 0, 0 }, \ 446 { 0, 0 }, \ 447 { 0, 0 }, \ 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 { "etherip", CTLTYPE_NODE }, \ 485 { 0, 0 }, \ 486 { 0, 0 }, \ 487 { 0, 0 }, \ 488 { 0, 0 }, \ 489 { 0, 0 }, \ 490 { "pim", CTLTYPE_NODE }, \ 491 { 0, 0 }, \ 492 { 0, 0 }, \ 493 { 0, 0 }, \ 494 { 0, 0 }, \ 495 { "ipcomp", CTLTYPE_NODE }, \ 496 { 0, 0 }, \ 497 { 0, 0 }, \ 498 { 0, 0 }, \ 499 { "carp", CTLTYPE_NODE }, \ 500 { 0, 0 }, \ 501 { 0, 0 }, \ 502 { 0, 0 }, \ 503 { 0, 0 }, \ 504 { 0, 0 }, \ 505 { 0, 0 }, \ 506 { 0, 0 }, \ 507 { 0, 0 }, \ 508 { 0, 0 }, \ 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 { "pfsync", CTLTYPE_NODE }, \ 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 { 0, 0 }, \ 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 { "divert", CTLTYPE_NODE }, \ 646 } 647 648 /* 649 * Names for IP sysctl objects 650 */ 651 #define IPCTL_FORWARDING 1 /* act as router */ 652 #define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */ 653 #define IPCTL_DEFTTL 3 /* default TTL */ 654 #define IPCTL_SOURCEROUTE 5 /* may perform source routes */ 655 #define IPCTL_DIRECTEDBCAST 6 /* default broadcast behavior */ 656 #define IPCTL_IPPORT_FIRSTAUTO 7 657 #define IPCTL_IPPORT_LASTAUTO 8 658 #define IPCTL_IPPORT_HIFIRSTAUTO 9 659 #define IPCTL_IPPORT_HILASTAUTO 10 660 #define IPCTL_IPPORT_MAXQUEUE 11 661 #define IPCTL_ENCDEBUG 12 662 #define IPCTL_IPSEC_EXPIRE_ACQUIRE 14 /* How long to wait for key mgmt. */ 663 #define IPCTL_IPSEC_EMBRYONIC_SA_TIMEOUT 15 /* new SA lifetime */ 664 #define IPCTL_IPSEC_REQUIRE_PFS 16 665 #define IPCTL_IPSEC_SOFT_ALLOCATIONS 17 666 #define IPCTL_IPSEC_ALLOCATIONS 18 667 #define IPCTL_IPSEC_SOFT_BYTES 19 668 #define IPCTL_IPSEC_BYTES 20 669 #define IPCTL_IPSEC_TIMEOUT 21 670 #define IPCTL_IPSEC_SOFT_TIMEOUT 22 671 #define IPCTL_IPSEC_SOFT_FIRSTUSE 23 672 #define IPCTL_IPSEC_FIRSTUSE 24 673 #define IPCTL_IPSEC_ENC_ALGORITHM 25 674 #define IPCTL_IPSEC_AUTH_ALGORITHM 26 675 #define IPCTL_MTUDISC 27 /* allow path MTU discovery */ 676 #define IPCTL_MTUDISCTIMEOUT 28 /* allow path MTU discovery */ 677 #define IPCTL_IPSEC_IPCOMP_ALGORITHM 29 678 #define IPCTL_IFQUEUE 30 679 #define IPCTL_MFORWARDING 31 680 #define IPCTL_MULTIPATH 32 681 #define IPCTL_STATS 33 /* IP statistics */ 682 #define IPCTL_MRTPROTO 34 /* type of multicast */ 683 #define IPCTL_MRTSTATS 35 684 #define IPCTL_ARPQUEUED 36 685 #define IPCTL_MRTMFC 37 686 #define IPCTL_MRTVIF 38 687 #define IPCTL_ARPTIMEOUT 39 688 #define IPCTL_ARPDOWN 40 689 #define IPCTL_MAXID 41 690 691 #define IPCTL_NAMES { \ 692 { 0, 0 }, \ 693 { "forwarding", CTLTYPE_INT }, \ 694 { "redirect", CTLTYPE_INT }, \ 695 { "ttl", CTLTYPE_INT }, \ 696 /* { "mtu", CTLTYPE_INT }, */ { 0, 0 }, \ 697 { "sourceroute", CTLTYPE_INT }, \ 698 { "directed-broadcast", CTLTYPE_INT }, \ 699 { "portfirst", CTLTYPE_INT }, \ 700 { "portlast", CTLTYPE_INT }, \ 701 { "porthifirst", CTLTYPE_INT }, \ 702 { "porthilast", CTLTYPE_INT }, \ 703 { "maxqueue", CTLTYPE_INT }, \ 704 { "encdebug", CTLTYPE_INT }, \ 705 { 0, 0 }, \ 706 { "ipsec-expire-acquire", CTLTYPE_INT }, \ 707 { "ipsec-invalid-life", CTLTYPE_INT }, \ 708 { "ipsec-pfs", CTLTYPE_INT }, \ 709 { "ipsec-soft-allocs", CTLTYPE_INT }, \ 710 { "ipsec-allocs", CTLTYPE_INT }, \ 711 { "ipsec-soft-bytes", CTLTYPE_INT }, \ 712 { "ipsec-bytes", CTLTYPE_INT }, \ 713 { "ipsec-timeout", CTLTYPE_INT }, \ 714 { "ipsec-soft-timeout", CTLTYPE_INT }, \ 715 { "ipsec-soft-firstuse", CTLTYPE_INT }, \ 716 { "ipsec-firstuse", CTLTYPE_INT }, \ 717 { "ipsec-enc-alg", CTLTYPE_STRING }, \ 718 { "ipsec-auth-alg", CTLTYPE_STRING }, \ 719 { "mtudisc", CTLTYPE_INT }, \ 720 { "mtudisctimeout", CTLTYPE_INT }, \ 721 { "ipsec-comp-alg", CTLTYPE_STRING }, \ 722 { "ifq", CTLTYPE_NODE }, \ 723 { "mforwarding", CTLTYPE_INT }, \ 724 { "multipath", CTLTYPE_INT }, \ 725 { "stats", CTLTYPE_STRUCT }, \ 726 { "mrtproto", CTLTYPE_INT }, \ 727 { "mrtstats", CTLTYPE_STRUCT }, \ 728 { "arpqueued", CTLTYPE_INT }, \ 729 { "mrtmfc", CTLTYPE_STRUCT }, \ 730 { "mrtvif", CTLTYPE_STRUCT }, \ 731 { "arptimeout", CTLTYPE_INT }, \ 732 { "arpdown", CTLTYPE_INT }, \ 733 } 734 #define IPCTL_VARS { \ 735 NULL, \ 736 &ipforwarding, \ 737 &ipsendredirects, \ 738 &ip_defttl, \ 739 NULL, \ 740 NULL, \ 741 &ip_directedbcast, \ 742 &ipport_firstauto, \ 743 &ipport_lastauto, \ 744 &ipport_hifirstauto, \ 745 &ipport_hilastauto, \ 746 &ip_maxqueue, \ 747 &encdebug, \ 748 NULL, \ 749 &ipsec_expire_acquire, \ 750 &ipsec_keep_invalid, \ 751 &ipsec_require_pfs, \ 752 &ipsec_soft_allocations, \ 753 &ipsec_exp_allocations, \ 754 &ipsec_soft_bytes, \ 755 &ipsec_exp_bytes, \ 756 &ipsec_exp_timeout, \ 757 &ipsec_soft_timeout, \ 758 &ipsec_soft_first_use, \ 759 &ipsec_exp_first_use, \ 760 NULL, \ 761 NULL, \ 762 NULL, \ 763 NULL, \ 764 NULL, \ 765 NULL, \ 766 &ipmforwarding, \ 767 &ipmultipath, \ 768 NULL, \ 769 NULL, \ 770 NULL, \ 771 &la_hold_total, \ 772 NULL, \ 773 NULL, \ 774 &arpt_keep, \ 775 &arpt_down, \ 776 } 777 778 #endif /* __BSD_VISIBLE */ 779 780 /* INET6 stuff */ 781 #define __KAME_NETINET_IN_H_INCLUDED_ 782 #include <netinet6/in6.h> 783 #undef __KAME_NETINET_IN_H_INCLUDED_ 784 785 #ifndef _KERNEL 786 #if __BSD_VISIBLE 787 __BEGIN_DECLS 788 int bindresvport(int, struct sockaddr_in *); 789 struct sockaddr; 790 int bindresvport_sa(int, struct sockaddr *); 791 __END_DECLS 792 #endif /* __BSD_VISIBLE */ 793 #endif /* !_KERNEL */ 794 795 #ifdef _KERNEL 796 extern int inetctlerrmap[]; 797 extern struct niqueue ipintrq; /* ip packet input queue */ 798 extern struct in_addr zeroin_addr; 799 800 struct mbuf; 801 802 int in_broadcast(struct in_addr, u_int); 803 int in_canforward(struct in_addr); 804 int in_cksum(struct mbuf *, int); 805 int in4_cksum(struct mbuf *, u_int8_t, int, int); 806 void in_proto_cksum_out(struct mbuf *, struct ifnet *); 807 void in_ifdetach(struct ifnet *); 808 int in_mask2len(struct in_addr *); 809 void in_len2mask(struct in_addr *, int); 810 811 char *inet_ntoa(struct in_addr); 812 int inet_nat64(int, const void *, void *, const void *, u_int8_t); 813 int inet_nat46(int, const void *, void *, const void *, u_int8_t); 814 815 const char *inet_ntop(int, const void *, char *, socklen_t); 816 817 #define in_hosteq(s,t) ((s).s_addr == (t).s_addr) 818 #define in_nullhost(x) ((x).s_addr == INADDR_ANY) 819 820 struct sockaddr; 821 struct sockaddr_in; 822 struct ifaddr; 823 struct in_ifaddr; 824 825 /* 826 * Convert between address family specific and general structs. 827 * Inline functions check the source type and are stricter than 828 * casts or defines. 829 */ 830 831 static __inline struct sockaddr_in * 832 satosin(struct sockaddr *sa) 833 { 834 return ((struct sockaddr_in *)(sa)); 835 } 836 837 static __inline struct sockaddr * 838 sintosa(struct sockaddr_in *sin) 839 { 840 return ((struct sockaddr *)(sin)); 841 } 842 843 static __inline struct in_ifaddr * 844 ifatoia(struct ifaddr *ifa) 845 { 846 return ((struct in_ifaddr *)(ifa)); 847 } 848 #endif /* _KERNEL */ 849 #endif /* _NETINET_IN_H_ */ 850