in.h revision 114258
1/* 2 * Copyright (c) 1982, 1986, 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)in.h 8.3 (Berkeley) 1/3/94 34 * $FreeBSD: head/sys/netinet/in.h 114258 2003-04-29 21:36:18Z mdodd $ 35 */ 36 37#ifndef _NETINET_IN_H_ 38#define _NETINET_IN_H_ 39 40#include <sys/cdefs.h> 41#include <sys/_types.h> 42#include <machine/endian.h> 43 44/* Protocols common to RFC 1700, POSIX, and X/Open. */ 45#define IPPROTO_IP 0 /* dummy for IP */ 46#define IPPROTO_ICMP 1 /* control message protocol */ 47#define IPPROTO_TCP 6 /* tcp */ 48#define IPPROTO_UDP 17 /* user datagram protocol */ 49 50#define INADDR_ANY (u_int32_t)0x00000000 51#define INADDR_BROADCAST (u_int32_t)0xffffffff /* must be masked */ 52 53#ifndef _UINT8_T_DECLARED 54typedef __uint8_t uint8_t; 55#define _UINT8_T_DECLARED 56#endif 57 58#ifndef _UINT16_T_DECLARED 59typedef __uint16_t uint16_t; 60#define _UINT16_T_DECLARED 61#endif 62 63#ifndef _UINT32_T_DECLARED 64typedef __uint32_t uint32_t; 65#define _UINT32_T_DECLARED 66#endif 67 68#ifndef _IN_ADDR_T_DECLARED 69typedef uint32_t in_addr_t; 70#define _IN_ADDR_T_DECLARED 71#endif 72 73#ifndef _IN_PORT_T_DECLARED 74typedef uint16_t in_port_t; 75#define _IN_PORT_T_DECLARED 76#endif 77 78#ifndef _SA_FAMILY_T_DECLARED 79typedef __sa_family_t sa_family_t; 80#define _SA_FAMILY_T_DECLARED 81#endif 82 83/* Internet address (a structure for historical reasons). */ 84#ifndef _STRUCT_IN_ADDR_DECLARED 85struct in_addr { 86 in_addr_t s_addr; 87}; 88#define _STRUCT_IN_ADDR_DECLARED 89#endif 90 91/* Socket address, internet style. */ 92struct sockaddr_in { 93 uint8_t sin_len; 94 sa_family_t sin_family; 95 in_port_t sin_port; 96 struct in_addr sin_addr; 97 char sin_zero[8]; 98}; 99 100#ifndef _KERNEL 101 102#ifndef _BYTEORDER_PROTOTYPED 103#define _BYTEORDER_PROTOTYPED 104__BEGIN_DECLS 105uint32_t htonl(uint32_t); 106uint16_t htons(uint16_t); 107uint32_t ntohl(uint32_t); 108uint16_t ntohs(uint16_t); 109__END_DECLS 110#endif 111 112#ifndef _BYTEORDER_FUNC_DEFINED 113#define _BYTEORDER_FUNC_DEFINED 114#define htonl(x) __htonl(x) 115#define htons(x) __htons(x) 116#define ntohl(x) __ntohl(x) 117#define ntohs(x) __ntohs(x) 118#endif 119 120#endif /* !_KERNEL */ 121 122#if __POSIX_VISIBLE >= 200112 123#define IPPROTO_RAW 255 /* raw IP packet */ 124#define INET_ADDRSTRLEN 16 125#endif 126 127#if __BSD_VISIBLE 128/* 129 * Constants and structures defined by the internet system, 130 * Per RFC 790, September 1981, and numerous additions. 131 */ 132 133/* 134 * Protocols (RFC 1700) 135 */ 136#define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */ 137#define IPPROTO_IGMP 2 /* group mgmt protocol */ 138#define IPPROTO_GGP 3 /* gateway^2 (deprecated) */ 139#define IPPROTO_IPV4 4 /* IPv4 encapsulation */ 140#define IPPROTO_IPIP IPPROTO_IPV4 /* for compatibility */ 141#define IPPROTO_ST 7 /* Stream protocol II */ 142#define IPPROTO_EGP 8 /* exterior gateway protocol */ 143#define IPPROTO_PIGP 9 /* private interior gateway */ 144#define IPPROTO_RCCMON 10 /* BBN RCC Monitoring */ 145#define IPPROTO_NVPII 11 /* network voice protocol*/ 146#define IPPROTO_PUP 12 /* pup */ 147#define IPPROTO_ARGUS 13 /* Argus */ 148#define IPPROTO_EMCON 14 /* EMCON */ 149#define IPPROTO_XNET 15 /* Cross Net Debugger */ 150#define IPPROTO_CHAOS 16 /* Chaos*/ 151#define IPPROTO_MUX 18 /* Multiplexing */ 152#define IPPROTO_MEAS 19 /* DCN Measurement Subsystems */ 153#define IPPROTO_HMP 20 /* Host Monitoring */ 154#define IPPROTO_PRM 21 /* Packet Radio Measurement */ 155#define IPPROTO_IDP 22 /* xns idp */ 156#define IPPROTO_TRUNK1 23 /* Trunk-1 */ 157#define IPPROTO_TRUNK2 24 /* Trunk-2 */ 158#define IPPROTO_LEAF1 25 /* Leaf-1 */ 159#define IPPROTO_LEAF2 26 /* Leaf-2 */ 160#define IPPROTO_RDP 27 /* Reliable Data */ 161#define IPPROTO_IRTP 28 /* Reliable Transaction */ 162#define IPPROTO_TP 29 /* tp-4 w/ class negotiation */ 163#define IPPROTO_BLT 30 /* Bulk Data Transfer */ 164#define IPPROTO_NSP 31 /* Network Services */ 165#define IPPROTO_INP 32 /* Merit Internodal */ 166#define IPPROTO_SEP 33 /* Sequential Exchange */ 167#define IPPROTO_3PC 34 /* Third Party Connect */ 168#define IPPROTO_IDPR 35 /* InterDomain Policy Routing */ 169#define IPPROTO_XTP 36 /* XTP */ 170#define IPPROTO_DDP 37 /* Datagram Delivery */ 171#define IPPROTO_CMTP 38 /* Control Message Transport */ 172#define IPPROTO_TPXX 39 /* TP++ Transport */ 173#define IPPROTO_IL 40 /* IL transport protocol */ 174#define IPPROTO_IPV6 41 /* IP6 header */ 175#define IPPROTO_SDRP 42 /* Source Demand Routing */ 176#define IPPROTO_ROUTING 43 /* IP6 routing header */ 177#define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */ 178#define IPPROTO_IDRP 45 /* InterDomain Routing*/ 179#define IPPROTO_RSVP 46 /* resource reservation */ 180#define IPPROTO_GRE 47 /* General Routing Encap. */ 181#define IPPROTO_MHRP 48 /* Mobile Host Routing */ 182#define IPPROTO_BHA 49 /* BHA */ 183#define IPPROTO_ESP 50 /* IP6 Encap Sec. Payload */ 184#define IPPROTO_AH 51 /* IP6 Auth Header */ 185#define IPPROTO_INLSP 52 /* Integ. Net Layer Security */ 186#define IPPROTO_SWIPE 53 /* IP with encryption */ 187#define IPPROTO_NHRP 54 /* Next Hop Resolution */ 188#define IPPROTO_MOBILE 55 /* IP Mobility */ 189#define IPPROTO_TLSP 56 /* Transport Layer Security */ 190#define IPPROTO_SKIP 57 /* SKIP */ 191#define IPPROTO_ICMPV6 58 /* ICMP6 */ 192#define IPPROTO_NONE 59 /* IP6 no next header */ 193#define IPPROTO_DSTOPTS 60 /* IP6 destination option */ 194#define IPPROTO_AHIP 61 /* any host internal protocol */ 195#define IPPROTO_CFTP 62 /* CFTP */ 196#define IPPROTO_HELLO 63 /* "hello" routing protocol */ 197#define IPPROTO_SATEXPAK 64 /* SATNET/Backroom EXPAK */ 198#define IPPROTO_KRYPTOLAN 65 /* Kryptolan */ 199#define IPPROTO_RVD 66 /* Remote Virtual Disk */ 200#define IPPROTO_IPPC 67 /* Pluribus Packet Core */ 201#define IPPROTO_ADFS 68 /* Any distributed FS */ 202#define IPPROTO_SATMON 69 /* Satnet Monitoring */ 203#define IPPROTO_VISA 70 /* VISA Protocol */ 204#define IPPROTO_IPCV 71 /* Packet Core Utility */ 205#define IPPROTO_CPNX 72 /* Comp. Prot. Net. Executive */ 206#define IPPROTO_CPHB 73 /* Comp. Prot. HeartBeat */ 207#define IPPROTO_WSN 74 /* Wang Span Network */ 208#define IPPROTO_PVP 75 /* Packet Video Protocol */ 209#define IPPROTO_BRSATMON 76 /* BackRoom SATNET Monitoring */ 210#define IPPROTO_ND 77 /* Sun net disk proto (temp.) */ 211#define IPPROTO_WBMON 78 /* WIDEBAND Monitoring */ 212#define IPPROTO_WBEXPAK 79 /* WIDEBAND EXPAK */ 213#define IPPROTO_EON 80 /* ISO cnlp */ 214#define IPPROTO_VMTP 81 /* VMTP */ 215#define IPPROTO_SVMTP 82 /* Secure VMTP */ 216#define IPPROTO_VINES 83 /* Banyon VINES */ 217#define IPPROTO_TTP 84 /* TTP */ 218#define IPPROTO_IGP 85 /* NSFNET-IGP */ 219#define IPPROTO_DGP 86 /* dissimilar gateway prot. */ 220#define IPPROTO_TCF 87 /* TCF */ 221#define IPPROTO_IGRP 88 /* Cisco/GXS IGRP */ 222#define IPPROTO_OSPFIGP 89 /* OSPFIGP */ 223#define IPPROTO_SRPC 90 /* Strite RPC protocol */ 224#define IPPROTO_LARP 91 /* Locus Address Resoloution */ 225#define IPPROTO_MTP 92 /* Multicast Transport */ 226#define IPPROTO_AX25 93 /* AX.25 Frames */ 227#define IPPROTO_IPEIP 94 /* IP encapsulated in IP */ 228#define IPPROTO_MICP 95 /* Mobile Int.ing control */ 229#define IPPROTO_SCCSP 96 /* Semaphore Comm. security */ 230#define IPPROTO_ETHERIP 97 /* Ethernet IP encapsulation */ 231#define IPPROTO_ENCAP 98 /* encapsulation header */ 232#define IPPROTO_APES 99 /* any private encr. scheme */ 233#define IPPROTO_GMTP 100 /* GMTP*/ 234#define IPPROTO_IPCOMP 108 /* payload compression (IPComp) */ 235/* 101-254: Partly Unassigned */ 236#define IPPROTO_PIM 103 /* Protocol Independent Mcast */ 237#define IPPROTO_PGM 113 /* PGM */ 238/* 255: Reserved */ 239/* BSD Private, local use, namespace incursion, no longer used */ 240#define IPPROTO_OLD_DIVERT 254 /* OLD divert pseudo-proto */ 241#define IPPROTO_MAX 256 242 243/* last return value of *_input(), meaning "all job for this pkt is done". */ 244#define IPPROTO_DONE 257 245 246/* Only used internally, so can be outside the range of valid IP protocols. */ 247#define IPPROTO_DIVERT 258 /* divert pseudo-protocol */ 248 249/* 250 * Local port number conventions: 251 * 252 * When a user does a bind(2) or connect(2) with a port number of zero, 253 * a non-conflicting local port address is chosen. 254 * The default range is IPPORT_HIFIRSTAUTO through 255 * IPPORT_HILASTAUTO, although that is settable by sysctl. 256 * 257 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 258 * default assignment range. 259 * 260 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 261 * 262 * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers 263 * into the "high" range. These are reserved for client outbound connections 264 * which do not want to be filtered by any firewalls. Note that by default 265 * this is the same as IP_PORTRANGE_DEFAULT. 266 * 267 * The value IP_PORTRANGE_LOW changes the range to the "low" are 268 * that is (by convention) restricted to privileged processes. This 269 * convention is based on "vouchsafe" principles only. It is only secure 270 * if you trust the remote host to restrict these ports. 271 * 272 * The default range of ports and the high range can be changed by 273 * sysctl(3). (net.inet.ip.port{hi,low}{first,last}_auto) 274 * 275 * Changing those values has bad security implications if you are 276 * using a stateless firewall that is allowing packets outside of that 277 * range in order to allow transparent outgoing connections. 278 * 279 * Such a firewall configuration will generally depend on the use of these 280 * default values. If you change them, you may find your Security 281 * Administrator looking for you with a heavy object. 282 * 283 * For a slightly more orthodox text view on this: 284 * 285 * ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers 286 * 287 * port numbers are divided into three ranges: 288 * 289 * 0 - 1023 Well Known Ports 290 * 1024 - 49151 Registered Ports 291 * 49152 - 65535 Dynamic and/or Private Ports 292 * 293 */ 294 295/* 296 * Ports < IPPORT_RESERVED are reserved for 297 * privileged processes (e.g. root). (IP_PORTRANGE_LOW) 298 */ 299#define IPPORT_RESERVED 1024 300 301/* 302 * Default local port range, used by both IP_PORTRANGE_DEFAULT 303 * and IP_PORTRANGE_HIGH. 304 */ 305#define IPPORT_HIFIRSTAUTO 49152 306#define IPPORT_HILASTAUTO 65535 307 308/* 309 * Scanning for a free reserved port return a value below IPPORT_RESERVED, 310 * but higher than IPPORT_RESERVEDSTART. Traditionally the start value was 311 * 512, but that conflicts with some well-known-services that firewalls may 312 * have a fit if we use. 313 */ 314#define IPPORT_RESERVEDSTART 600 315 316#define IPPORT_MAX 65535 317 318/* 319 * Definitions of bits in internet address integers. 320 * On subnets, the decomposition of addresses to host and net parts 321 * is done according to subnet mask, not the masks here. 322 */ 323#define IN_CLASSA(i) (((u_int32_t)(i) & 0x80000000) == 0) 324#define IN_CLASSA_NET 0xff000000 325#define IN_CLASSA_NSHIFT 24 326#define IN_CLASSA_HOST 0x00ffffff 327#define IN_CLASSA_MAX 128 328 329#define IN_CLASSB(i) (((u_int32_t)(i) & 0xc0000000) == 0x80000000) 330#define IN_CLASSB_NET 0xffff0000 331#define IN_CLASSB_NSHIFT 16 332#define IN_CLASSB_HOST 0x0000ffff 333#define IN_CLASSB_MAX 65536 334 335#define IN_CLASSC(i) (((u_int32_t)(i) & 0xe0000000) == 0xc0000000) 336#define IN_CLASSC_NET 0xffffff00 337#define IN_CLASSC_NSHIFT 8 338#define IN_CLASSC_HOST 0x000000ff 339 340#define IN_CLASSD(i) (((u_int32_t)(i) & 0xf0000000) == 0xe0000000) 341#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */ 342#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */ 343#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */ 344#define IN_MULTICAST(i) IN_CLASSD(i) 345 346#define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000) 347#define IN_BADCLASS(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000) 348 349#define INADDR_LOOPBACK (u_int32_t)0x7f000001 350#ifndef _KERNEL 351#define INADDR_NONE 0xffffffff /* -1 return */ 352#endif 353 354#define INADDR_UNSPEC_GROUP (u_int32_t)0xe0000000 /* 224.0.0.0 */ 355#define INADDR_ALLHOSTS_GROUP (u_int32_t)0xe0000001 /* 224.0.0.1 */ 356#define INADDR_ALLRTRS_GROUP (u_int32_t)0xe0000002 /* 224.0.0.2 */ 357#define INADDR_MAX_LOCAL_GROUP (u_int32_t)0xe00000ff /* 224.0.0.255 */ 358 359#define IN_LOOPBACKNET 127 /* official! */ 360 361/* 362 * Options for use with [gs]etsockopt at the IP level. 363 * First word of comment is data type; bool is stored in int. 364 */ 365#define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ 366#define IP_HDRINCL 2 /* int; header is included with data */ 367#define IP_TOS 3 /* int; IP type of service and preced. */ 368#define IP_TTL 4 /* int; IP time to live */ 369#define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ 370#define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ 371#define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ 372#define IP_SENDSRCADDR IP_RECVDSTADDR /* cmsg_type to set src addr */ 373#define IP_RETOPTS 8 /* ip_opts; set/get IP options */ 374#define IP_MULTICAST_IF 9 /* u_char; set/get IP multicast i/f */ 375#define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ 376#define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */ 377#define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ 378#define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ 379#define IP_MULTICAST_VIF 14 /* set/get IP mcast virt. iface */ 380#define IP_RSVP_ON 15 /* enable RSVP in kernel */ 381#define IP_RSVP_OFF 16 /* disable RSVP in kernel */ 382#define IP_RSVP_VIF_ON 17 /* set RSVP per-vif socket */ 383#define IP_RSVP_VIF_OFF 18 /* unset RSVP per-vif socket */ 384#define IP_PORTRANGE 19 /* int; range to choose for unspec port */ 385#define IP_RECVIF 20 /* bool; receive reception if w/dgram */ 386/* for IPSEC */ 387#define IP_IPSEC_POLICY 21 /* int; set/get security policy */ 388#define IP_FAITH 22 /* bool; accept FAITH'ed connections */ 389 390#define IP_FW_ADD 50 /* add a firewall rule to chain */ 391#define IP_FW_DEL 51 /* delete a firewall rule from chain */ 392#define IP_FW_FLUSH 52 /* flush firewall rule chain */ 393#define IP_FW_ZERO 53 /* clear single/all firewall counter(s) */ 394#define IP_FW_GET 54 /* get entire firewall rule chain */ 395#define IP_FW_RESETLOG 55 /* reset logging counters */ 396 397#define IP_DUMMYNET_CONFIGURE 60 /* add/configure a dummynet pipe */ 398#define IP_DUMMYNET_DEL 61 /* delete a dummynet pipe from chain */ 399#define IP_DUMMYNET_FLUSH 62 /* flush dummynet */ 400#define IP_DUMMYNET_GET 64 /* get entire dummynet pipes */ 401 402#define IP_RECVTTL 65 /* bool; receive IP TTL w/dgram */ 403 404/* 405 * Defaults and limits for options 406 */ 407#define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */ 408#define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 409#define IP_MAX_MEMBERSHIPS 20 /* per socket */ 410 411/* 412 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. 413 */ 414struct ip_mreq { 415 struct in_addr imr_multiaddr; /* IP multicast address of group */ 416 struct in_addr imr_interface; /* local IP address of interface */ 417}; 418 419/* 420 * Argument for IP_PORTRANGE: 421 * - which range to search when port is unspecified at bind() or connect() 422 */ 423#define IP_PORTRANGE_DEFAULT 0 /* default range */ 424#define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 425#define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 426 427/* 428 * Definitions for inet sysctl operations. 429 * 430 * Third level is protocol number. 431 * Fourth level is desired variable within that protocol. 432 */ 433#define IPPROTO_MAXID (IPPROTO_AH + 1) /* don't list to IPPROTO_MAX */ 434 435#define CTL_IPPROTO_NAMES { \ 436 { "ip", CTLTYPE_NODE }, \ 437 { "icmp", CTLTYPE_NODE }, \ 438 { "igmp", CTLTYPE_NODE }, \ 439 { "ggp", CTLTYPE_NODE }, \ 440 { 0, 0 }, \ 441 { 0, 0 }, \ 442 { "tcp", CTLTYPE_NODE }, \ 443 { 0, 0 }, \ 444 { "egp", CTLTYPE_NODE }, \ 445 { 0, 0 }, \ 446 { 0, 0 }, \ 447 { 0, 0 }, \ 448 { "pup", CTLTYPE_NODE }, \ 449 { 0, 0 }, \ 450 { 0, 0 }, \ 451 { 0, 0 }, \ 452 { 0, 0 }, \ 453 { "udp", CTLTYPE_NODE }, \ 454 { 0, 0 }, \ 455 { 0, 0 }, \ 456 { 0, 0 }, \ 457 { 0, 0 }, \ 458 { "idp", CTLTYPE_NODE }, \ 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 { "ipsec", CTLTYPE_NODE }, \ 488} 489 490/* 491 * Names for IP sysctl objects 492 */ 493#define IPCTL_FORWARDING 1 /* act as router */ 494#define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */ 495#define IPCTL_DEFTTL 3 /* default TTL */ 496#ifdef notyet 497#define IPCTL_DEFMTU 4 /* default MTU */ 498#endif 499#define IPCTL_RTEXPIRE 5 /* cloned route expiration time */ 500#define IPCTL_RTMINEXPIRE 6 /* min value for expiration time */ 501#define IPCTL_RTMAXCACHE 7 /* trigger level for dynamic expire */ 502#define IPCTL_SOURCEROUTE 8 /* may perform source routes */ 503#define IPCTL_DIRECTEDBROADCAST 9 /* may re-broadcast received packets */ 504#define IPCTL_INTRQMAXLEN 10 /* max length of netisr queue */ 505#define IPCTL_INTRQDROPS 11 /* number of netisr q drops */ 506#define IPCTL_STATS 12 /* ipstat structure */ 507#define IPCTL_ACCEPTSOURCEROUTE 13 /* may accept source routed packets */ 508#define IPCTL_FASTFORWARDING 14 /* use fast IP forwarding code */ 509#define IPCTL_KEEPFAITH 15 /* FAITH IPv4->IPv6 translater ctl */ 510#define IPCTL_GIF_TTL 16 /* default TTL for gif encap packet */ 511#define IPCTL_MAXID 17 512 513#define IPCTL_NAMES { \ 514 { 0, 0 }, \ 515 { "forwarding", CTLTYPE_INT }, \ 516 { "redirect", CTLTYPE_INT }, \ 517 { "ttl", CTLTYPE_INT }, \ 518 { "mtu", CTLTYPE_INT }, \ 519 { "rtexpire", CTLTYPE_INT }, \ 520 { "rtminexpire", CTLTYPE_INT }, \ 521 { "rtmaxcache", CTLTYPE_INT }, \ 522 { "sourceroute", CTLTYPE_INT }, \ 523 { "directed-broadcast", CTLTYPE_INT }, \ 524 { "intr-queue-maxlen", CTLTYPE_INT }, \ 525 { "intr-queue-drops", CTLTYPE_INT }, \ 526 { "stats", CTLTYPE_STRUCT }, \ 527 { "accept_sourceroute", CTLTYPE_INT }, \ 528 { "fastforwarding", CTLTYPE_INT }, \ 529} 530 531#endif /* __BSD_VISIBLE */ 532 533#ifdef _KERNEL 534 535struct ifnet; struct mbuf; /* forward declarations for Standard C */ 536 537int in_broadcast(struct in_addr, struct ifnet *); 538int in_canforward(struct in_addr); 539int in_localaddr(struct in_addr); 540char *inet_ntoa(struct in_addr); /* in libkern */ 541char *inet_ntoa_r(struct in_addr ina, char *buf); /* in libkern */ 542 543#define in_hosteq(s, t) ((s).s_addr == (t).s_addr) 544#define in_nullhost(x) ((x).s_addr == INADDR_ANY) 545 546#define satosin(sa) ((struct sockaddr_in *)(sa)) 547#define sintosa(sin) ((struct sockaddr *)(sin)) 548#define ifatoia(ifa) ((struct in_ifaddr *)(ifa)) 549 550#endif /* _KERNEL */ 551 552/* INET6 stuff */ 553#if __POSIX_VISIBLE >= 200112 554#define __KAME_NETINET_IN_H_INCLUDED_ 555#include <netinet6/in6.h> 556#undef __KAME_NETINET_IN_H_INCLUDED_ 557#endif 558 559#endif /* !_NETINET_IN_H_*/ 560