1 /* $OpenBSD: in.h,v 1.90 2011/07/06 01:57:37 dlg 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 * @(#)in.h 8.3 (Berkeley) 1/3/94 33 */ 34 35 /* 36 * Constants and structures defined by the internet system, 37 * Per RFC 790, September 1981, and numerous additions. 38 */ 39 40 #ifndef _NETINET_IN_H_ 41 #define _NETINET_IN_H_ 42 43 /* 44 * Protocols 45 */ 46 #define IPPROTO_IP 0 /* dummy for IP */ 47 #define IPPROTO_HOPOPTS IPPROTO_IP /* Hop-by-hop option header */ 48 #define IPPROTO_ICMP 1 /* control message protocol */ 49 #define IPPROTO_IGMP 2 /* group mgmt protocol */ 50 #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */ 51 #define IPPROTO_IPIP 4 /* IP inside IP */ 52 #define IPPROTO_IPV4 IPPROTO_IPIP /* IP inside IP */ 53 #define IPPROTO_TCP 6 /* tcp */ 54 #define IPPROTO_EGP 8 /* exterior gateway protocol */ 55 #define IPPROTO_PUP 12 /* pup */ 56 #define IPPROTO_UDP 17 /* user datagram protocol */ 57 #define IPPROTO_IDP 22 /* xns idp */ 58 #define IPPROTO_TP 29 /* tp-4 w/ class negotiation */ 59 #define IPPROTO_IPV6 41 /* IPv6 in IPv6 */ 60 #define IPPROTO_ROUTING 43 /* Routing header */ 61 #define IPPROTO_FRAGMENT 44 /* Fragmentation/reassembly header */ 62 #define IPPROTO_RSVP 46 /* resource reservation */ 63 #define IPPROTO_GRE 47 /* GRE encap, RFCs 1701/1702 */ 64 #define IPPROTO_ESP 50 /* Encap. Security Payload */ 65 #define IPPROTO_AH 51 /* Authentication header */ 66 #define IPPROTO_MOBILE 55 /* IP Mobility, RFC 2004 */ 67 #define IPPROTO_ICMPV6 58 /* ICMP for IPv6 */ 68 #define IPPROTO_NONE 59 /* No next header */ 69 #define IPPROTO_DSTOPTS 60 /* Destination options header */ 70 #define IPPROTO_EON 80 /* ISO cnlp */ 71 #define IPPROTO_ETHERIP 97 /* Ethernet in IPv4 */ 72 #define IPPROTO_ENCAP 98 /* encapsulation header */ 73 #define IPPROTO_PIM 103 /* Protocol indep. multicast */ 74 #define IPPROTO_IPCOMP 108 /* IP Payload Comp. Protocol */ 75 #define IPPROTO_CARP 112 /* CARP */ 76 #define IPPROTO_MPLS 137 /* unicast MPLS packet */ 77 #define IPPROTO_PFSYNC 240 /* PFSYNC */ 78 #define IPPROTO_RAW 255 /* raw IP packet */ 79 80 #define IPPROTO_MAX 256 81 82 /* Only used internally, so it can be outside the range of valid IP protocols */ 83 #define IPPROTO_DIVERT 258 /* Divert sockets */ 84 85 86 /* 87 * From FreeBSD: 88 * 89 * Local port number conventions: 90 * 91 * When a user does a bind(2) or connect(2) with a port number of zero, 92 * a non-conflicting local port address is chosen. 93 * The default range is IPPORT_RESERVED through 94 * IPPORT_USERRESERVED, although that is settable by sysctl. 95 * 96 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 97 * default assignment range. 98 * 99 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 100 * 101 * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers 102 * into the "high" range. These are reserved for client outbound connections 103 * which do not want to be filtered by any firewalls. 104 * 105 * The value IP_PORTRANGE_LOW changes the range to the "low" are 106 * that is (by convention) restricted to privileged processes. This 107 * convention is based on "vouchsafe" principles only. It is only secure 108 * if you trust the remote host to restrict these ports. 109 * 110 * The default range of ports and the high range can be changed by 111 * sysctl(3). (net.inet.ip.port{hi}{first,last}) 112 * 113 * Changing those values has bad security implications if you are 114 * using a a stateless firewall that is allowing packets outside of that 115 * range in order to allow transparent outgoing connections. 116 * 117 * Such a firewall configuration will generally depend on the use of these 118 * default values. If you change them, you may find your Security 119 * Administrator looking for you with a heavy object. 120 */ 121 122 /* 123 * Ports < IPPORT_RESERVED are reserved for 124 * privileged processes (e.g. root). 125 * Ports > IPPORT_USERRESERVED are reserved 126 * for servers, not necessarily privileged. 127 */ 128 #define IPPORT_RESERVED 1024 129 #define IPPORT_USERRESERVED 49151 130 131 /* 132 * Default local port range to use by setting IP_PORTRANGE_HIGH 133 */ 134 #define IPPORT_HIFIRSTAUTO 49152 135 #define IPPORT_HILASTAUTO 65535 136 137 /* 138 * IP Version 4 Internet address (a structure for historical reasons) 139 */ 140 struct in_addr { 141 in_addr_t s_addr; 142 }; 143 144 /* last return value of *_input(), meaning "all job for this pkt is done". */ 145 #define IPPROTO_DONE 257 146 147 /* 148 * Definitions of bits in internet address integers. 149 * On subnets, the decomposition of addresses to host and net parts 150 * is done according to subnet mask, not the masks here. 151 * 152 * By byte-swapping the constants, we avoid ever having to byte-swap IP 153 * addresses inside the kernel. Unfortunately, user-level programs rely 154 * on these macros not doing byte-swapping. 155 */ 156 #ifdef _KERNEL 157 #define __IPADDR(x) ((u_int32_t) htonl((u_int32_t)(x))) 158 #else 159 #define __IPADDR(x) ((u_int32_t)(x)) 160 #endif 161 162 #define IN_CLASSA(i) (((u_int32_t)(i) & __IPADDR(0x80000000)) == \ 163 __IPADDR(0x00000000)) 164 #define IN_CLASSA_NET __IPADDR(0xff000000) 165 #define IN_CLASSA_NSHIFT 24 166 #define IN_CLASSA_HOST __IPADDR(0x00ffffff) 167 #define IN_CLASSA_MAX 128 168 169 #define IN_CLASSB(i) (((u_int32_t)(i) & __IPADDR(0xc0000000)) == \ 170 __IPADDR(0x80000000)) 171 #define IN_CLASSB_NET __IPADDR(0xffff0000) 172 #define IN_CLASSB_NSHIFT 16 173 #define IN_CLASSB_HOST __IPADDR(0x0000ffff) 174 #define IN_CLASSB_MAX 65536 175 176 #define IN_CLASSC(i) (((u_int32_t)(i) & __IPADDR(0xe0000000)) == \ 177 __IPADDR(0xc0000000)) 178 #define IN_CLASSC_NET __IPADDR(0xffffff00) 179 #define IN_CLASSC_NSHIFT 8 180 #define IN_CLASSC_HOST __IPADDR(0x000000ff) 181 182 #define IN_CLASSD(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \ 183 __IPADDR(0xe0000000)) 184 /* These ones aren't really net and host fields, but routing needn't know. */ 185 #define IN_CLASSD_NET __IPADDR(0xf0000000) 186 #define IN_CLASSD_NSHIFT 28 187 #define IN_CLASSD_HOST __IPADDR(0x0fffffff) 188 #define IN_MULTICAST(i) IN_CLASSD(i) 189 190 #define IN_RFC3021_NET __IPADDR(0xfffffffe) 191 #define IN_RFC3021_NSHIFT 31 192 #define IN_RFC3021_HOST __IPADDR(0x00000001) 193 #define IN_RFC3021_SUBNET(n) (((u_int32_t)(n) & IN_RFC3021_NET) == \ 194 IN_RFC3021_NET) 195 196 #define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \ 197 __IPADDR(0xf0000000)) 198 #define IN_BADCLASS(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \ 199 __IPADDR(0xf0000000)) 200 201 #define IN_LOCAL_GROUP(i) (((u_int32_t)(i) & __IPADDR(0xffffff00)) == \ 202 __IPADDR(0xe0000000)) 203 204 #ifdef _KERNEL 205 #define IN_CLASSFULBROADCAST(i, b) \ 206 ((IN_CLASSC(b) && (b | IN_CLASSC_HOST) == i) || \ 207 (IN_CLASSB(b) && (b | IN_CLASSB_HOST) == i) || \ 208 (IN_CLASSA(b) && (b | IN_CLASSA_HOST) == i)) 209 #endif /* _KERNEL */ 210 211 #define INADDR_ANY __IPADDR(0x00000000) 212 #define INADDR_LOOPBACK __IPADDR(0x7f000001) 213 #define INADDR_BROADCAST __IPADDR(0xffffffff) /* must be masked */ 214 #ifndef _KERNEL 215 #define INADDR_NONE __IPADDR(0xffffffff) /* -1 return */ 216 #endif 217 218 #define INADDR_UNSPEC_GROUP __IPADDR(0xe0000000) /* 224.0.0.0 */ 219 #define INADDR_ALLHOSTS_GROUP __IPADDR(0xe0000001) /* 224.0.0.1 */ 220 #define INADDR_ALLROUTERS_GROUP __IPADDR(0xe0000002) /* 224.0.0.2 */ 221 #define INADDR_CARP_GROUP __IPADDR(0xe0000012) /* 224.0.0.18 */ 222 #define INADDR_PFSYNC_GROUP __IPADDR(0xe00000f0) /* 224.0.0.240 */ 223 #define INADDR_MAX_LOCAL_GROUP __IPADDR(0xe00000ff) /* 224.0.0.255 */ 224 225 #define IN_LOOPBACKNET 127 /* official! */ 226 227 /* 228 * IP Version 4 socket address. 229 */ 230 struct sockaddr_in { 231 u_int8_t sin_len; 232 sa_family_t sin_family; 233 in_port_t sin_port; 234 struct in_addr sin_addr; 235 int8_t sin_zero[8]; 236 }; 237 238 /* 239 * Structure used to describe IP options. 240 * Used to store options internally, to pass them to a process, 241 * or to restore options retrieved earlier. 242 * The ip_dst is used for the first-hop gateway when using a source route 243 * (this gets put into the header proper). 244 */ 245 struct ip_opts { 246 struct in_addr ip_dst; /* first hop, 0 w/o src rt */ 247 #if defined(__cplusplus) 248 int8_t Ip_opts[40]; /* cannot have same name as class */ 249 #else 250 int8_t ip_opts[40]; /* actually variable in size */ 251 #endif 252 }; 253 254 /* 255 * Options for use with [gs]etsockopt at the IP level. 256 * First word of comment is data type; bool is stored in int. 257 */ 258 #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ 259 #define IP_HDRINCL 2 /* int; header is included with data */ 260 #define IP_TOS 3 /* int; IP type of service and preced. */ 261 #define IP_TTL 4 /* int; IP time to live */ 262 #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ 263 #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ 264 #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ 265 #define IP_RETOPTS 8 /* ip_opts; set/get IP options */ 266 #define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */ 267 #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ 268 #define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */ 269 #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ 270 #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ 271 272 /* 14-17 left empty for future compatibility with FreeBSD */ 273 274 #define IP_PORTRANGE 19 /* int; range to choose for unspec port */ 275 #define IP_AUTH_LEVEL 20 /* int; authentication used */ 276 #define IP_ESP_TRANS_LEVEL 21 /* int; transport encryption */ 277 #define IP_ESP_NETWORK_LEVEL 22 /* int; full-packet encryption */ 278 #define IP_IPSEC_LOCAL_ID 23 /* buf; IPsec local ID */ 279 #define IP_IPSEC_REMOTE_ID 24 /* buf; IPsec remote ID */ 280 #define IP_IPSEC_LOCAL_CRED 25 /* buf; IPsec local credentials */ 281 #define IP_IPSEC_REMOTE_CRED 26 /* buf; IPsec remote credentials */ 282 #define IP_IPSEC_LOCAL_AUTH 27 /* buf; IPsec local auth material */ 283 #define IP_IPSEC_REMOTE_AUTH 28 /* buf; IPsec remote auth material */ 284 #define IP_IPCOMP_LEVEL 29 /* int; compression used */ 285 #define IP_RECVIF 30 /* bool; receive reception if w/dgram */ 286 #define IP_RECVTTL 31 /* bool; receive IP TTL w/dgram */ 287 #define IP_MINTTL 32 /* minimum TTL for packet or drop */ 288 #define IP_RECVDSTPORT 33 /* bool; receive IP dst port w/dgram */ 289 #define IP_PIPEX 34 /* bool; using PIPEX */ 290 #define IP_RECVRTABLE 35 /* bool; receive rdomain w/dgram */ 291 292 #define IP_RTABLE 0x1021 /* int; routing table, see SO_RTABLE */ 293 294 /* 295 * Security levels - IPsec, not IPSO 296 */ 297 298 #define IPSEC_LEVEL_BYPASS 0x00 /* Bypass policy altogether */ 299 #define IPSEC_LEVEL_NONE 0x00 /* Send clear, accept any */ 300 #define IPSEC_LEVEL_AVAIL 0x01 /* Send secure if SA available */ 301 #define IPSEC_LEVEL_USE 0x02 /* Send secure, accept any */ 302 #define IPSEC_LEVEL_REQUIRE 0x03 /* Require secure inbound, also use */ 303 #define IPSEC_LEVEL_UNIQUE 0x04 /* Use outbound SA that is unique */ 304 #define IPSEC_LEVEL_DEFAULT IPSEC_LEVEL_AVAIL 305 306 #define IPSEC_AUTH_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 307 #define IPSEC_ESP_TRANS_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 308 #define IPSEC_ESP_NETWORK_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 309 #define IPSEC_IPCOMP_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 310 311 /* 312 * Defaults and limits for options 313 */ 314 #define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */ 315 #define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 316 /* 317 * The imo_membership vector for each socket starts at IP_MIN_MEMBERSHIPS 318 * and is dynamically allocated at run-time, bounded by IP_MAX_MEMBERSHIPS, 319 * and is reallocated when needed, sized according to a power-of-two increment. 320 */ 321 #define IP_MIN_MEMBERSHIPS 15 322 #define IP_MAX_MEMBERSHIPS 4095 323 324 /* 325 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. 326 */ 327 struct ip_mreq { 328 struct in_addr imr_multiaddr; /* IP multicast address of group */ 329 struct in_addr imr_interface; /* local IP address of interface */ 330 }; 331 332 /* 333 * Argument for IP_PORTRANGE: 334 * - which range to search when port is unspecified at bind() or connect() 335 */ 336 #define IP_PORTRANGE_DEFAULT 0 /* default range */ 337 #define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 338 #define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 339 340 /* 341 * Buffer lengths for strings containing printable IP addresses 342 */ 343 #define INET_ADDRSTRLEN 16 344 345 /* 346 * Definitions for inet sysctl operations. 347 * 348 * Third level is protocol number. 349 * Fourth level is desired variable within that protocol. 350 */ 351 #define IPPROTO_MAXID (IPPROTO_DIVERT + 1) /* don't list to IPPROTO_MAX */ 352 353 #define CTL_IPPROTO_NAMES { \ 354 { "ip", CTLTYPE_NODE }, \ 355 { "icmp", CTLTYPE_NODE }, \ 356 { "igmp", CTLTYPE_NODE }, \ 357 { "ggp", CTLTYPE_NODE }, \ 358 { "ipip", CTLTYPE_NODE }, \ 359 { 0, 0 }, \ 360 { "tcp", CTLTYPE_NODE }, \ 361 { 0, 0 }, \ 362 { "egp", CTLTYPE_NODE }, \ 363 { 0, 0 }, \ 364 { 0, 0 }, \ 365 { 0, 0 }, \ 366 { "pup", CTLTYPE_NODE }, \ 367 { 0, 0 }, \ 368 { 0, 0 }, \ 369 { 0, 0 }, \ 370 { 0, 0 }, \ 371 { "udp", CTLTYPE_NODE }, \ 372 { 0, 0 }, \ 373 { 0, 0 }, \ 374 { 0, 0 }, \ 375 { 0, 0 }, \ 376 { 0, 0 }, \ 377 { 0, 0 }, \ 378 { 0, 0 }, \ 379 { 0, 0 }, \ 380 { 0, 0 }, \ 381 { 0, 0 }, \ 382 { 0, 0 }, \ 383 { 0, 0 }, \ 384 { 0, 0 }, \ 385 { 0, 0 }, \ 386 { 0, 0 }, \ 387 { 0, 0 }, \ 388 { 0, 0 }, \ 389 { 0, 0 }, \ 390 { 0, 0 }, \ 391 { 0, 0 }, \ 392 { 0, 0 }, \ 393 { 0, 0 }, \ 394 { 0, 0 }, \ 395 { 0, 0 }, \ 396 { 0, 0 }, \ 397 { 0, 0 }, \ 398 { 0, 0 }, \ 399 { 0, 0 }, \ 400 { 0, 0 }, \ 401 { "gre", CTLTYPE_NODE }, \ 402 { 0, 0 }, \ 403 { 0, 0 }, \ 404 { "esp", CTLTYPE_NODE }, \ 405 { "ah", CTLTYPE_NODE }, \ 406 { 0, 0 }, \ 407 { 0, 0 }, \ 408 { 0, 0 }, \ 409 { "mobileip", CTLTYPE_NODE }, \ 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 { 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 { 0, 0 }, \ 444 { 0, 0 }, \ 445 { 0, 0 }, \ 446 { 0, 0 }, \ 447 { 0, 0 }, \ 448 { 0, 0 }, \ 449 { 0, 0 }, \ 450 { 0, 0 }, \ 451 { "etherip", CTLTYPE_NODE }, \ 452 { 0, 0 }, \ 453 { 0, 0 }, \ 454 { 0, 0 }, \ 455 { 0, 0 }, \ 456 { 0, 0 }, \ 457 { "pim", CTLTYPE_NODE }, \ 458 { 0, 0 }, \ 459 { 0, 0 }, \ 460 { 0, 0 }, \ 461 { 0, 0 }, \ 462 { "ipcomp", CTLTYPE_NODE }, \ 463 { 0, 0 }, \ 464 { 0, 0 }, \ 465 { 0, 0 }, \ 466 { "carp", CTLTYPE_NODE }, \ 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 { 0, 0 }, \ 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 { 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 { "pfsync", CTLTYPE_NODE }, \ 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 { "divert", CTLTYPE_NODE }, \ 613 } 614 615 /* 616 * Names for IP sysctl objects 617 */ 618 #define IPCTL_FORWARDING 1 /* act as router */ 619 #define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */ 620 #define IPCTL_DEFTTL 3 /* default TTL */ 621 #ifdef notyet 622 #define IPCTL_DEFMTU 4 /* default MTU */ 623 #endif 624 #define IPCTL_SOURCEROUTE 5 /* may perform source routes */ 625 #define IPCTL_DIRECTEDBCAST 6 /* default broadcast behavior */ 626 #define IPCTL_IPPORT_FIRSTAUTO 7 627 #define IPCTL_IPPORT_LASTAUTO 8 628 #define IPCTL_IPPORT_HIFIRSTAUTO 9 629 #define IPCTL_IPPORT_HILASTAUTO 10 630 #define IPCTL_IPPORT_MAXQUEUE 11 631 #define IPCTL_ENCDEBUG 12 632 #ifdef notdef /*obsolete*/ 633 #define IPCTL_GIF_TTL 13 /* default TTL for gif encap packet */ 634 #endif 635 #define IPCTL_IPSEC_EXPIRE_ACQUIRE 14 /* How long to wait for key mgmt. */ 636 #define IPCTL_IPSEC_EMBRYONIC_SA_TIMEOUT 15 /* new SA lifetime */ 637 #define IPCTL_IPSEC_REQUIRE_PFS 16 638 #define IPCTL_IPSEC_SOFT_ALLOCATIONS 17 639 #define IPCTL_IPSEC_ALLOCATIONS 18 640 #define IPCTL_IPSEC_SOFT_BYTES 19 641 #define IPCTL_IPSEC_BYTES 20 642 #define IPCTL_IPSEC_TIMEOUT 21 643 #define IPCTL_IPSEC_SOFT_TIMEOUT 22 644 #define IPCTL_IPSEC_SOFT_FIRSTUSE 23 645 #define IPCTL_IPSEC_FIRSTUSE 24 646 #define IPCTL_IPSEC_ENC_ALGORITHM 25 647 #define IPCTL_IPSEC_AUTH_ALGORITHM 26 648 #define IPCTL_MTUDISC 27 /* allow path MTU discovery */ 649 #define IPCTL_MTUDISCTIMEOUT 28 /* allow path MTU discovery */ 650 #define IPCTL_IPSEC_IPCOMP_ALGORITHM 29 651 #define IPCTL_IFQUEUE 30 652 #define IPCTL_MFORWARDING 31 653 #define IPCTL_MULTIPATH 32 654 #define IPCTL_STATS 33 /* IP statistics */ 655 #define IPCTL_MRTPROTO 34 /* type of multicast */ 656 #define IPCTL_MRTSTATS 35 657 #define IPCTL_ARPQUEUED 36 658 #define IPCTL_MAXID 37 659 660 #define IPCTL_NAMES { \ 661 { 0, 0 }, \ 662 { "forwarding", CTLTYPE_INT }, \ 663 { "redirect", CTLTYPE_INT }, \ 664 { "ttl", CTLTYPE_INT }, \ 665 /* { "mtu", CTLTYPE_INT }, */ { 0, 0 }, \ 666 { "sourceroute", CTLTYPE_INT }, \ 667 { "directed-broadcast", CTLTYPE_INT }, \ 668 { "portfirst", CTLTYPE_INT }, \ 669 { "portlast", CTLTYPE_INT }, \ 670 { "porthifirst", CTLTYPE_INT }, \ 671 { "porthilast", CTLTYPE_INT }, \ 672 { "maxqueue", CTLTYPE_INT }, \ 673 { "encdebug", CTLTYPE_INT }, \ 674 { 0, 0 }, \ 675 { "ipsec-expire-acquire", CTLTYPE_INT }, \ 676 { "ipsec-invalid-life", CTLTYPE_INT }, \ 677 { "ipsec-pfs", CTLTYPE_INT }, \ 678 { "ipsec-soft-allocs", CTLTYPE_INT }, \ 679 { "ipsec-allocs", CTLTYPE_INT }, \ 680 { "ipsec-soft-bytes", CTLTYPE_INT }, \ 681 { "ipsec-bytes", CTLTYPE_INT }, \ 682 { "ipsec-timeout", CTLTYPE_INT }, \ 683 { "ipsec-soft-timeout", CTLTYPE_INT }, \ 684 { "ipsec-soft-firstuse", CTLTYPE_INT }, \ 685 { "ipsec-firstuse", CTLTYPE_INT }, \ 686 { "ipsec-enc-alg", CTLTYPE_STRING }, \ 687 { "ipsec-auth-alg", CTLTYPE_STRING }, \ 688 { "mtudisc", CTLTYPE_INT }, \ 689 { "mtudisctimeout", CTLTYPE_INT }, \ 690 { "ipsec-comp-alg", CTLTYPE_STRING }, \ 691 { "ifq", CTLTYPE_NODE }, \ 692 { "mforwarding", CTLTYPE_INT }, \ 693 { "multipath", CTLTYPE_INT }, \ 694 { "stats", CTLTYPE_STRUCT }, \ 695 { "mrtproto", CTLTYPE_INT }, \ 696 { "mrtstats", CTLTYPE_STRUCT }, \ 697 { "arpqueued", CTLTYPE_INT }, \ 698 } 699 #define IPCTL_VARS { \ 700 NULL, \ 701 &ipforwarding, \ 702 &ipsendredirects, \ 703 &ip_defttl, \ 704 NULL, \ 705 NULL, \ 706 &ip_directedbcast, \ 707 &ipport_firstauto, \ 708 &ipport_lastauto, \ 709 &ipport_hifirstauto, \ 710 &ipport_hilastauto, \ 711 &ip_maxqueue, \ 712 &encdebug, \ 713 NULL, \ 714 &ipsec_expire_acquire, \ 715 &ipsec_keep_invalid, \ 716 &ipsec_require_pfs, \ 717 &ipsec_soft_allocations, \ 718 &ipsec_exp_allocations, \ 719 &ipsec_soft_bytes, \ 720 &ipsec_exp_bytes, \ 721 &ipsec_exp_timeout, \ 722 &ipsec_soft_timeout, \ 723 &ipsec_soft_first_use, \ 724 &ipsec_exp_first_use, \ 725 NULL, \ 726 NULL, \ 727 NULL, \ 728 NULL, \ 729 NULL, \ 730 NULL, \ 731 &ipmforwarding, \ 732 &ipmultipath, \ 733 NULL, \ 734 NULL, \ 735 NULL, \ 736 &la_hold_total \ 737 } 738 739 /* INET6 stuff */ 740 #define __KAME_NETINET_IN_H_INCLUDED_ 741 #include <netinet6/in6.h> 742 #undef __KAME_NETINET_IN_H_INCLUDED_ 743 744 #ifndef _KERNEL 745 746 #include <sys/cdefs.h> 747 748 __BEGIN_DECLS 749 int bindresvport(int, struct sockaddr_in *); 750 struct sockaddr; 751 int bindresvport_sa(int, struct sockaddr *); 752 __END_DECLS 753 754 #else 755 /* 756 * in_cksum_phdr: 757 * 758 * Compute significant parts of the IPv4 checksum pseudo-header 759 * for use in a delayed TCP/UDP checksum calculation. 760 * 761 * Args: 762 * 763 * src Source IP address 764 * dst Destination IP address 765 * lenproto htons(proto-hdr-len + proto-number) 766 */ 767 static __inline u_int16_t __attribute__((__unused__)) 768 in_cksum_phdr(u_int32_t src, u_int32_t dst, u_int32_t lenproto) 769 { 770 u_int32_t sum; 771 772 sum = lenproto + 773 (u_int16_t)(src >> 16) + 774 (u_int16_t)(src /*& 0xffff*/) + 775 (u_int16_t)(dst >> 16) + 776 (u_int16_t)(dst /*& 0xffff*/); 777 778 sum = (u_int16_t)(sum >> 16) + (u_int16_t)(sum /*& 0xffff*/); 779 780 if (sum > 0xffff) 781 sum -= 0xffff; 782 783 return (sum); 784 } 785 786 /* 787 * in_cksum_addword: 788 * 789 * Add the two 16-bit network-order values, carry, and return. 790 */ 791 static __inline u_int16_t __attribute__((__unused__)) 792 in_cksum_addword(u_int16_t a, u_int16_t b) 793 { 794 u_int32_t sum = a + b; 795 796 if (sum > 0xffff) 797 sum -= 0xffff; 798 799 return (sum); 800 } 801 802 extern struct in_addr zeroin_addr; 803 804 int in_broadcast(struct in_addr, struct ifnet *, u_int); 805 int in_canforward(struct in_addr); 806 int in_cksum(struct mbuf *, int); 807 int in4_cksum(struct mbuf *, u_int8_t, int, int); 808 void in_delayed_cksum(struct mbuf *); 809 int in_localaddr(struct in_addr, u_int); 810 void in_socktrim(struct sockaddr_in *); 811 char *inet_ntoa(struct in_addr); 812 void in_proto_cksum_out(struct mbuf *, struct ifnet *); 813 814 #define in_hosteq(s,t) ((s).s_addr == (t).s_addr) 815 #define in_nullhost(x) ((x).s_addr == INADDR_ANY) 816 817 #define satosin(sa) ((struct sockaddr_in *)(sa)) 818 #define sintosa(sin) ((struct sockaddr *)(sin)) 819 #define ifatoia(ifa) ((struct in_ifaddr *)(ifa)) 820 #endif /* _KERNEL */ 821 #endif /* _NETINET_IN_H_ */ 822