1 /* $OpenBSD: in.h,v 1.54 2001/07/05 08:40:12 angelos 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. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)in.h 8.3 (Berkeley) 1/3/94 37 */ 38 39 /* 40 * Constants and structures defined by the internet system, 41 * Per RFC 790, September 1981, and numerous additions. 42 */ 43 44 #ifndef _NETINET_IN_H_ 45 #define _NETINET_IN_H_ 46 47 /* 48 * Protocols 49 */ 50 #define IPPROTO_IP 0 /* dummy for IP */ 51 #define IPPROTO_HOPOPTS IPPROTO_IP /* Hop-by-hop option header */ 52 #define IPPROTO_ICMP 1 /* control message protocol */ 53 #define IPPROTO_IGMP 2 /* group mgmt protocol */ 54 #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */ 55 #define IPPROTO_IPIP 4 /* IP inside IP */ 56 #define IPPROTO_IPV4 IPPROTO_IPIP /* IP inside IP */ 57 #define IPPROTO_TCP 6 /* tcp */ 58 #define IPPROTO_EGP 8 /* exterior gateway protocol */ 59 #define IPPROTO_PUP 12 /* pup */ 60 #define IPPROTO_UDP 17 /* user datagram protocol */ 61 #define IPPROTO_IDP 22 /* xns idp */ 62 #define IPPROTO_TP 29 /* tp-4 w/ class negotiation */ 63 #define IPPROTO_IPV6 41 /* IPv6 in IPv6 */ 64 #define IPPROTO_ROUTING 43 /* Routing header */ 65 #define IPPROTO_FRAGMENT 44 /* Fragmentation/reassembly header */ 66 #define IPPROTO_RSVP 46 /* resource reservation */ 67 #define IPPROTO_GRE 47 /* GRE encap, RFCs 1701/1702 */ 68 #define IPPROTO_ESP 50 /* Encap. Security Payload */ 69 #define IPPROTO_AH 51 /* Authentication header */ 70 #define IPPROTO_MOBILE 55 /* IP Mobility, RFC 2004 */ 71 #define IPPROTO_ICMPV6 58 /* ICMP for IPv6 */ 72 #define IPPROTO_NONE 59 /* No next header */ 73 #define IPPROTO_DSTOPTS 60 /* Destination options header */ 74 #define IPPROTO_EON 80 /* ISO cnlp */ 75 #define IPPROTO_ETHERIP 97 /* Ethernet in IPv4 */ 76 #define IPPROTO_ENCAP 98 /* encapsulation header */ 77 #define IPPROTO_PIM 103 /* Protocol indep. multicast */ 78 #define IPPROTO_IPCOMP 108 /* IP Payload Comp. Protocol */ 79 #define IPPROTO_RAW 255 /* raw IP packet */ 80 81 #define IPPROTO_MAX 256 82 83 /* 84 * From FreeBSD: 85 * 86 * Local port number conventions: 87 * 88 * When a user does a bind(2) or connect(2) with a port number of zero, 89 * a non-conflicting local port address is chosen. 90 * The default range is IPPORT_RESERVED through 91 * IPPORT_USERRESERVED, although that is settable by sysctl. 92 * 93 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 94 * default assignment range. 95 * 96 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 97 * 98 * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers 99 * into the "high" range. These are reserved for client outbound connections 100 * which do not want to be filtered by any firewalls. 101 * 102 * The value IP_PORTRANGE_LOW changes the range to the "low" are 103 * that is (by convention) restricted to privileged processes. This 104 * convention is based on "vouchsafe" principles only. It is only secure 105 * if you trust the remote host to restrict these ports. 106 * 107 * The default range of ports and the high range can be changed by 108 * sysctl(3). (net.inet.ip.port{hi}{first,last}) 109 * 110 * Changing those values has bad security implications if you are 111 * using a a stateless firewall that is allowing packets outside of that 112 * range in order to allow transparent outgoing connections. 113 * 114 * Such a firewall configuration will generally depend on the use of these 115 * default values. If you change them, you may find your Security 116 * Administrator looking for you with a heavy object. 117 */ 118 119 /* 120 * Ports < IPPORT_RESERVED are reserved for 121 * privileged processes (e.g. root). 122 * Ports > IPPORT_USERRESERVED are reserved 123 * for servers, not necessarily privileged. 124 */ 125 #define IPPORT_RESERVED 1024 126 #define IPPORT_USERRESERVED 49151 127 128 /* 129 * Default local port range to use by setting IP_PORTRANGE_HIGH 130 */ 131 #define IPPORT_HIFIRSTAUTO 49152 132 #define IPPORT_HILASTAUTO 65535 133 134 /* 135 * IP Version 4 Internet address (a structure for historical reasons) 136 */ 137 struct in_addr { 138 in_addr_t s_addr; 139 }; 140 141 /* last return value of *_input(), meaning "all job for this pkt is done". */ 142 #define IPPROTO_DONE 257 143 144 /* 145 * Definitions of bits in internet address integers. 146 * On subnets, the decomposition of addresses to host and net parts 147 * is done according to subnet mask, not the masks here. 148 * 149 * By byte-swapping the constants, we avoid ever having to byte-swap IP 150 * addresses inside the kernel. Unfortunately, user-level programs rely 151 * on these macros not doing byte-swapping. 152 */ 153 #ifdef _KERNEL 154 #define __IPADDR(x) ((u_int32_t) htonl((u_int32_t)(x))) 155 #else 156 #define __IPADDR(x) ((u_int32_t)(x)) 157 #endif 158 159 #define IN_CLASSA(i) (((u_int32_t)(i) & __IPADDR(0x80000000)) == \ 160 __IPADDR(0x00000000)) 161 #define IN_CLASSA_NET __IPADDR(0xff000000) 162 #define IN_CLASSA_NSHIFT 24 163 #define IN_CLASSA_HOST __IPADDR(0x00ffffff) 164 #define IN_CLASSA_MAX 128 165 166 #define IN_CLASSB(i) (((u_int32_t)(i) & __IPADDR(0xc0000000)) == \ 167 __IPADDR(0x80000000)) 168 #define IN_CLASSB_NET __IPADDR(0xffff0000) 169 #define IN_CLASSB_NSHIFT 16 170 #define IN_CLASSB_HOST __IPADDR(0x0000ffff) 171 #define IN_CLASSB_MAX 65536 172 173 #define IN_CLASSC(i) (((u_int32_t)(i) & __IPADDR(0xe0000000)) == \ 174 __IPADDR(0xc0000000)) 175 #define IN_CLASSC_NET __IPADDR(0xffffff00) 176 #define IN_CLASSC_NSHIFT 8 177 #define IN_CLASSC_HOST __IPADDR(0x000000ff) 178 179 #define IN_CLASSD(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \ 180 __IPADDR(0xe0000000)) 181 /* These ones aren't really net and host fields, but routing needn't know. */ 182 #define IN_CLASSD_NET __IPADDR(0xf0000000) 183 #define IN_CLASSD_NSHIFT 28 184 #define IN_CLASSD_HOST __IPADDR(0x0fffffff) 185 #define IN_MULTICAST(i) IN_CLASSD(i) 186 187 #define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \ 188 __IPADDR(0xf0000000)) 189 #define IN_BADCLASS(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \ 190 __IPADDR(0xf0000000)) 191 192 #define IN_LOCAL_GROUP(i) (((u_int32_t)(i) & __IPADDR(0xffffff00)) == \ 193 __IPADDR(0xe0000000)) 194 195 #define INADDR_ANY __IPADDR(0x00000000) 196 #define INADDR_LOOPBACK __IPADDR(0x7f000001) 197 #define INADDR_BROADCAST __IPADDR(0xffffffff) /* must be masked */ 198 #ifndef _KERNEL 199 #define INADDR_NONE __IPADDR(0xffffffff) /* -1 return */ 200 #endif 201 202 #define INADDR_UNSPEC_GROUP __IPADDR(0xe0000000) /* 224.0.0.0 */ 203 #define INADDR_ALLHOSTS_GROUP __IPADDR(0xe0000001) /* 224.0.0.1 */ 204 #define INADDR_MAX_LOCAL_GROUP __IPADDR(0xe00000ff) /* 224.0.0.255 */ 205 206 #define IN_LOOPBACKNET 127 /* official! */ 207 208 /* 209 * IP Version 4 socket address. 210 */ 211 struct sockaddr_in { 212 u_int8_t sin_len; 213 sa_family_t sin_family; 214 in_port_t sin_port; 215 struct in_addr sin_addr; 216 int8_t sin_zero[8]; 217 }; 218 219 /* 220 * Structure used to describe IP options. 221 * Used to store options internally, to pass them to a process, 222 * or to restore options retrieved earlier. 223 * The ip_dst is used for the first-hop gateway when using a source route 224 * (this gets put into the header proper). 225 */ 226 struct ip_opts { 227 struct in_addr ip_dst; /* first hop, 0 w/o src rt */ 228 #if defined(__cplusplus) 229 int8_t Ip_opts[40]; /* cannot have same name as class */ 230 #else 231 int8_t ip_opts[40]; /* actually variable in size */ 232 #endif 233 }; 234 235 /* 236 * Options for use with [gs]etsockopt at the IP level. 237 * First word of comment is data type; bool is stored in int. 238 */ 239 #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ 240 #define IP_HDRINCL 2 /* int; header is included with data */ 241 #define IP_TOS 3 /* int; IP type of service and preced. */ 242 #define IP_TTL 4 /* int; IP time to live */ 243 #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ 244 #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ 245 #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ 246 #define IP_RETOPTS 8 /* ip_opts; set/get IP options */ 247 #define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */ 248 #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ 249 #define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */ 250 #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ 251 #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ 252 253 /* 14-17 left empty for future compatibility with FreeBSD */ 254 255 #define IP_PORTRANGE 19 /* int; range to choose for unspec port */ 256 #define IP_AUTH_LEVEL 20 /* int; authentication used */ 257 #define IP_ESP_TRANS_LEVEL 21 /* int; transport encryption */ 258 #define IP_ESP_NETWORK_LEVEL 22 /* int; full-packet encryption */ 259 #define IP_IPSEC_LOCAL_ID 23 /* buf; IPsec local ID */ 260 #define IP_IPSEC_REMOTE_ID 24 /* buf; IPsec remote ID */ 261 #define IP_IPSEC_LOCAL_CRED 25 /* buf; IPsec local credentials */ 262 #define IP_IPSEC_REMOTE_CRED 26 /* buf; IPsec remote credentials */ 263 #define IP_IPSEC_LOCAL_AUTH 27 /* buf; IPsec local auth material */ 264 #define IP_IPSEC_REMOTE_AUTH 28 /* buf; IPsec remote auth material */ 265 #define IP_IPCOMP_LEVEL 29 /* int; compression used */ 266 267 /* 268 * Security levels - IPsec, not IPSO 269 */ 270 271 #define IPSEC_LEVEL_BYPASS 0x00 /* Bypass policy altogether */ 272 #define IPSEC_LEVEL_NONE 0x00 /* Send clear, accept any */ 273 #define IPSEC_LEVEL_AVAIL 0x01 /* Send secure if SA available */ 274 #define IPSEC_LEVEL_USE 0x02 /* Send secure, accept any */ 275 #define IPSEC_LEVEL_REQUIRE 0x03 /* Require secure inbound, also use */ 276 #define IPSEC_LEVEL_UNIQUE 0x04 /* Use outbound SA that is unique */ 277 #define IPSEC_LEVEL_DEFAULT IPSEC_LEVEL_AVAIL 278 279 #define IPSEC_AUTH_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 280 #define IPSEC_ESP_TRANS_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 281 #define IPSEC_ESP_NETWORK_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 282 #define IPSEC_IPCOMP_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT 283 284 /* 285 * Defaults and limits for options 286 */ 287 #define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */ 288 #define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 289 #define IP_MAX_MEMBERSHIPS 20 /* per socket; must fit in one mbuf */ 290 291 /* 292 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. 293 */ 294 struct ip_mreq { 295 struct in_addr imr_multiaddr; /* IP multicast address of group */ 296 struct in_addr imr_interface; /* local IP address of interface */ 297 }; 298 299 /* 300 * Argument for IP_PORTRANGE: 301 * - which range to search when port is unspecified at bind() or connect() 302 */ 303 #define IP_PORTRANGE_DEFAULT 0 /* default range */ 304 #define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 305 #define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 306 307 /* 308 * Buffer lengths for strings containing printable IP addresses 309 */ 310 #define INET_ADDRSTRLEN 16 311 312 /* 313 * Definitions for inet sysctl operations. 314 * 315 * Third level is protocol number. 316 * Fourth level is desired variable within that protocol. 317 */ 318 #define IPPROTO_MAXID (IPPROTO_IPCOMP + 1) /* don't list to IPPROTO_MAX */ 319 320 #define CTL_IPPROTO_NAMES { \ 321 { "ip", CTLTYPE_NODE }, \ 322 { "icmp", CTLTYPE_NODE }, \ 323 { "igmp", CTLTYPE_NODE }, \ 324 { "ggp", CTLTYPE_NODE }, \ 325 { "ipip", CTLTYPE_NODE }, \ 326 { 0, 0 }, \ 327 { "tcp", CTLTYPE_NODE }, \ 328 { 0, 0 }, \ 329 { "egp", CTLTYPE_NODE }, \ 330 { 0, 0 }, \ 331 { 0, 0 }, \ 332 { 0, 0 }, \ 333 { "pup", CTLTYPE_NODE }, \ 334 { 0, 0 }, \ 335 { 0, 0 }, \ 336 { 0, 0 }, \ 337 { 0, 0 }, \ 338 { "udp", CTLTYPE_NODE }, \ 339 { 0, 0 }, \ 340 { 0, 0 }, \ 341 { 0, 0 }, \ 342 { 0, 0 }, \ 343 { 0, 0 }, \ 344 { 0, 0 }, \ 345 { 0, 0 }, \ 346 { 0, 0 }, \ 347 { 0, 0 }, \ 348 { 0, 0 }, \ 349 { 0, 0 }, \ 350 { 0, 0 }, \ 351 { 0, 0 }, \ 352 { 0, 0 }, \ 353 { 0, 0 }, \ 354 { 0, 0 }, \ 355 { 0, 0 }, \ 356 { 0, 0 }, \ 357 { 0, 0 }, \ 358 { 0, 0 }, \ 359 { 0, 0 }, \ 360 { 0, 0 }, \ 361 { 0, 0 }, \ 362 { 0, 0 }, \ 363 { 0, 0 }, \ 364 { 0, 0 }, \ 365 { 0, 0 }, \ 366 { 0, 0 }, \ 367 { 0, 0 }, \ 368 { "gre", CTLTYPE_NODE }, \ 369 { 0, 0 }, \ 370 { 0, 0 }, \ 371 { "esp", CTLTYPE_NODE }, \ 372 { "ah", CTLTYPE_NODE }, \ 373 { 0, 0 }, \ 374 { 0, 0 }, \ 375 { 0, 0 }, \ 376 { "mobileip", CTLTYPE_NODE }, \ 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 { 0, 0 }, \ 402 { 0, 0 }, \ 403 { 0, 0 }, \ 404 { 0, 0 }, \ 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 { "etherip", CTLTYPE_NODE }, \ 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 { "ipcomp", CTLTYPE_NODE }, \ 430 } 431 432 /* 433 * Names for IP sysctl objects 434 */ 435 #define IPCTL_FORWARDING 1 /* act as router */ 436 #define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */ 437 #define IPCTL_DEFTTL 3 /* default TTL */ 438 #ifdef notyet 439 #define IPCTL_DEFMTU 4 /* default MTU */ 440 #endif 441 #define IPCTL_SOURCEROUTE 5 /* may perform source routes */ 442 #define IPCTL_DIRECTEDBCAST 6 /* default broadcast behavior */ 443 #define IPCTL_IPPORT_FIRSTAUTO 7 444 #define IPCTL_IPPORT_LASTAUTO 8 445 #define IPCTL_IPPORT_HIFIRSTAUTO 9 446 #define IPCTL_IPPORT_HILASTAUTO 10 447 #define IPCTL_IPPORT_MAXQUEUE 11 448 #define IPCTL_ENCDEBUG 12 449 #ifdef notdef /*obsolete*/ 450 #define IPCTL_GIF_TTL 13 /* default TTL for gif encap packet */ 451 #endif 452 #define IPCTL_IPSEC_EXPIRE_ACQUIRE 14 /* How long to wait for key mgmt. */ 453 #define IPCTL_IPSEC_EMBRYONIC_SA_TIMEOUT 15 /* new SA lifetime */ 454 #define IPCTL_IPSEC_REQUIRE_PFS 16 455 #define IPCTL_IPSEC_SOFT_ALLOCATIONS 17 456 #define IPCTL_IPSEC_ALLOCATIONS 18 457 #define IPCTL_IPSEC_SOFT_BYTES 19 458 #define IPCTL_IPSEC_BYTES 20 459 #define IPCTL_IPSEC_TIMEOUT 21 460 #define IPCTL_IPSEC_SOFT_TIMEOUT 22 461 #define IPCTL_IPSEC_SOFT_FIRSTUSE 23 462 #define IPCTL_IPSEC_FIRSTUSE 24 463 #define IPCTL_IPSEC_ENC_ALGORITHM 25 464 #define IPCTL_IPSEC_AUTH_ALGORITHM 26 465 #define IPCTL_MTUDISC 27 /* allow path MTU discovery */ 466 #define IPCTL_MTUDISCTIMEOUT 28 /* allow path MTU discovery */ 467 #define IPCTL_IPSEC_IPCOMP_ALGORITHM 29 468 #define IPCTL_MAXID 30 469 470 #define IPCTL_NAMES { \ 471 { 0, 0 }, \ 472 { "forwarding", CTLTYPE_INT }, \ 473 { "redirect", CTLTYPE_INT }, \ 474 { "ttl", CTLTYPE_INT }, \ 475 /* { "mtu", CTLTYPE_INT }, */ { 0, 0 }, \ 476 { "sourceroute", CTLTYPE_INT }, \ 477 { "directed-broadcast", CTLTYPE_INT }, \ 478 { "portfirst", CTLTYPE_INT }, \ 479 { "portlast", CTLTYPE_INT }, \ 480 { "porthifirst", CTLTYPE_INT }, \ 481 { "porthilast", CTLTYPE_INT }, \ 482 { "maxqueue", CTLTYPE_INT }, \ 483 { "encdebug", CTLTYPE_INT }, \ 484 { 0, 0 }, \ 485 { "ipsec-expire-acquire", CTLTYPE_INT }, \ 486 { "ipsec-invalid-life", CTLTYPE_INT }, \ 487 { "ipsec-pfs", CTLTYPE_INT }, \ 488 { "ipsec-soft-allocs", CTLTYPE_INT }, \ 489 { "ipsec-allocs", CTLTYPE_INT }, \ 490 { "ipsec-soft-bytes", CTLTYPE_INT }, \ 491 { "ipsec-bytes", CTLTYPE_INT }, \ 492 { "ipsec-timeout", CTLTYPE_INT }, \ 493 { "ipsec-soft-timeout", CTLTYPE_INT }, \ 494 { "ipsec-soft-firstuse", CTLTYPE_INT }, \ 495 { "ipsec-firstuse", CTLTYPE_INT }, \ 496 { "ipsec-enc-alg", CTLTYPE_STRING }, \ 497 { "ipsec-auth-alg", CTLTYPE_STRING }, \ 498 { "mtudisc", CTLTYPE_INT }, \ 499 { "mtudisctimeout", CTLTYPE_INT }, \ 500 { "ipsec-comp-alg", CTLTYPE_STRING }, \ 501 } 502 503 /* INET6 stuff */ 504 #define __KAME_NETINET_IN_H_INCLUDED_ 505 #include <netinet6/in6.h> 506 #undef __KAME_NETINET_IN_H_INCLUDED_ 507 508 #ifndef _KERNEL 509 510 #include <sys/cdefs.h> 511 512 __BEGIN_DECLS 513 int bindresvport __P((int, struct sockaddr_in *)); 514 struct sockaddr; 515 int bindresvport_sa __P((int, struct sockaddr *)); 516 __END_DECLS 517 518 #else 519 /* 520 * in_cksum_phdr: 521 * 522 * Compute significant parts of the IPv4 checksum pseudo-header 523 * for use in a delayed TCP/UDP checksum calculation. 524 * 525 * Args: 526 * 527 * src Source IP address 528 * dst Destination IP address 529 * lenproto htons(proto-hdr-len + proto-number) 530 */ 531 static __inline u_int16_t __attribute__((__unused__)) 532 in_cksum_phdr(u_int32_t src, u_int32_t dst, u_int32_t lenproto) 533 { 534 u_int32_t sum; 535 536 sum = lenproto + 537 (u_int16_t)(src >> 16) + 538 (u_int16_t)(src /*& 0xffff*/) + 539 (u_int16_t)(dst >> 16) + 540 (u_int16_t)(dst /*& 0xffff*/); 541 542 sum = (u_int16_t)(sum >> 16) + (u_int16_t)(sum /*& 0xffff*/); 543 544 if (sum > 0xffff) 545 sum -= 0xffff; 546 547 return (sum); 548 } 549 550 /* 551 * in_cksum_addword: 552 * 553 * Add the two 16-bit network-order values, carry, and return. 554 */ 555 static __inline u_int16_t __attribute__((__unused__)) 556 in_cksum_addword(u_int16_t a, u_int16_t b) 557 { 558 u_int32_t sum = a + b; 559 560 if (sum > 0xffff) 561 sum -= 0xffff; 562 563 return (sum); 564 } 565 566 int in_broadcast __P((struct in_addr, struct ifnet *)); 567 int in_canforward __P((struct in_addr)); 568 int in_cksum __P((struct mbuf *, int)); 569 int in4_cksum __P((struct mbuf *, u_int8_t, int, int)); 570 void in_delayed_cksum __P((struct mbuf *)); 571 int in_localaddr __P((struct in_addr)); 572 void in_socktrim __P((struct sockaddr_in *)); 573 char *inet_ntoa __P((struct in_addr)); 574 575 #define in_hosteq(s,t) ((s).s_addr == (t).s_addr) 576 #define in_nullhost(x) ((x).s_addr == INADDR_ANY) 577 578 #define satosin(sa) ((struct sockaddr_in *)(sa)) 579 #define sintosa(sin) ((struct sockaddr *)(sin)) 580 #define ifatoia(ifa) ((struct in_ifaddr *)(ifa)) 581 #endif /* _KERNEL */ 582 #endif /* _NETINET_IN_H_ */ 583