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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)in.h 8.3 (Berkeley) 1/3/94 30 * $FreeBSD: stable/11/sys/netinet/in.h 317083 2017-04-18 09:27:26Z ae $ 31 */ 32 33#ifndef _NETINET_IN_H_ 34#define _NETINET_IN_H_ 35 36#include <sys/cdefs.h> 37#include <sys/_types.h> 38#include <machine/endian.h> 39 40/* Protocols common to RFC 1700, POSIX, and X/Open. */ 41#define IPPROTO_IP 0 /* dummy for IP */ 42#define IPPROTO_ICMP 1 /* control message protocol */ 43#define IPPROTO_TCP 6 /* tcp */ 44#define IPPROTO_UDP 17 /* user datagram protocol */ 45 46#define INADDR_ANY ((in_addr_t)0x00000000) 47#define INADDR_BROADCAST ((in_addr_t)0xffffffff) /* must be masked */ 48 49#ifndef _UINT8_T_DECLARED 50typedef __uint8_t uint8_t; 51#define _UINT8_T_DECLARED 52#endif 53 54#ifndef _UINT16_T_DECLARED 55typedef __uint16_t uint16_t; 56#define _UINT16_T_DECLARED 57#endif 58 59#ifndef _UINT32_T_DECLARED 60typedef __uint32_t uint32_t; 61#define _UINT32_T_DECLARED 62#endif 63 64#ifndef _IN_ADDR_T_DECLARED 65typedef uint32_t in_addr_t; 66#define _IN_ADDR_T_DECLARED 67#endif 68 69#ifndef _IN_PORT_T_DECLARED 70typedef uint16_t in_port_t; 71#define _IN_PORT_T_DECLARED 72#endif 73 74#ifndef _SA_FAMILY_T_DECLARED 75typedef __sa_family_t sa_family_t; 76#define _SA_FAMILY_T_DECLARED 77#endif 78 79/* Internet address (a structure for historical reasons). */ 80#ifndef _STRUCT_IN_ADDR_DECLARED 81struct in_addr { 82 in_addr_t s_addr; 83}; 84#define _STRUCT_IN_ADDR_DECLARED 85#endif 86 87#ifndef _SOCKLEN_T_DECLARED 88typedef __socklen_t socklen_t; 89#define _SOCKLEN_T_DECLARED 90#endif 91 92#include <sys/_sockaddr_storage.h> 93 94/* Socket address, internet style. */ 95struct sockaddr_in { 96 uint8_t sin_len; 97 sa_family_t sin_family; 98 in_port_t sin_port; 99 struct in_addr sin_addr; 100 char sin_zero[8]; 101}; 102 103#if !defined(_KERNEL) && __POSIX_VISIBLE >= 200112 104 105#ifndef _BYTEORDER_PROTOTYPED 106#define _BYTEORDER_PROTOTYPED 107__BEGIN_DECLS 108uint32_t htonl(uint32_t); 109uint16_t htons(uint16_t); 110uint32_t ntohl(uint32_t); 111uint16_t ntohs(uint16_t); 112__END_DECLS 113#endif 114 115#ifndef _BYTEORDER_FUNC_DEFINED 116#define _BYTEORDER_FUNC_DEFINED 117#define htonl(x) __htonl(x) 118#define htons(x) __htons(x) 119#define ntohl(x) __ntohl(x) 120#define ntohs(x) __ntohs(x) 121#endif 122 123#endif /* !_KERNEL && __POSIX_VISIBLE >= 200112 */ 124 125#if __POSIX_VISIBLE >= 200112 126#define IPPROTO_IPV6 41 /* IP6 header */ 127#define IPPROTO_RAW 255 /* raw IP packet */ 128#define INET_ADDRSTRLEN 16 129#endif 130 131#if __BSD_VISIBLE 132/* 133 * Constants and structures defined by the internet system, 134 * Per RFC 790, September 1981, and numerous additions. 135 */ 136 137/* 138 * Protocols (RFC 1700) 139 */ 140#define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */ 141#define IPPROTO_IGMP 2 /* group mgmt protocol */ 142#define IPPROTO_GGP 3 /* gateway^2 (deprecated) */ 143#define IPPROTO_IPV4 4 /* IPv4 encapsulation */ 144#define IPPROTO_IPIP IPPROTO_IPV4 /* for compatibility */ 145#define IPPROTO_ST 7 /* Stream protocol II */ 146#define IPPROTO_EGP 8 /* exterior gateway protocol */ 147#define IPPROTO_PIGP 9 /* private interior gateway */ 148#define IPPROTO_RCCMON 10 /* BBN RCC Monitoring */ 149#define IPPROTO_NVPII 11 /* network voice protocol*/ 150#define IPPROTO_PUP 12 /* pup */ 151#define IPPROTO_ARGUS 13 /* Argus */ 152#define IPPROTO_EMCON 14 /* EMCON */ 153#define IPPROTO_XNET 15 /* Cross Net Debugger */ 154#define IPPROTO_CHAOS 16 /* Chaos*/ 155#define IPPROTO_MUX 18 /* Multiplexing */ 156#define IPPROTO_MEAS 19 /* DCN Measurement Subsystems */ 157#define IPPROTO_HMP 20 /* Host Monitoring */ 158#define IPPROTO_PRM 21 /* Packet Radio Measurement */ 159#define IPPROTO_IDP 22 /* xns idp */ 160#define IPPROTO_TRUNK1 23 /* Trunk-1 */ 161#define IPPROTO_TRUNK2 24 /* Trunk-2 */ 162#define IPPROTO_LEAF1 25 /* Leaf-1 */ 163#define IPPROTO_LEAF2 26 /* Leaf-2 */ 164#define IPPROTO_RDP 27 /* Reliable Data */ 165#define IPPROTO_IRTP 28 /* Reliable Transaction */ 166#define IPPROTO_TP 29 /* tp-4 w/ class negotiation */ 167#define IPPROTO_BLT 30 /* Bulk Data Transfer */ 168#define IPPROTO_NSP 31 /* Network Services */ 169#define IPPROTO_INP 32 /* Merit Internodal */ 170#define IPPROTO_SEP 33 /* Sequential Exchange */ 171#define IPPROTO_3PC 34 /* Third Party Connect */ 172#define IPPROTO_IDPR 35 /* InterDomain Policy Routing */ 173#define IPPROTO_XTP 36 /* XTP */ 174#define IPPROTO_DDP 37 /* Datagram Delivery */ 175#define IPPROTO_CMTP 38 /* Control Message Transport */ 176#define IPPROTO_TPXX 39 /* TP++ Transport */ 177#define IPPROTO_IL 40 /* IL transport protocol */ 178#define IPPROTO_SDRP 42 /* Source Demand Routing */ 179#define IPPROTO_ROUTING 43 /* IP6 routing header */ 180#define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */ 181#define IPPROTO_IDRP 45 /* InterDomain Routing*/ 182#define IPPROTO_RSVP 46 /* resource reservation */ 183#define IPPROTO_GRE 47 /* General Routing Encap. */ 184#define IPPROTO_MHRP 48 /* Mobile Host Routing */ 185#define IPPROTO_BHA 49 /* BHA */ 186#define IPPROTO_ESP 50 /* IP6 Encap Sec. Payload */ 187#define IPPROTO_AH 51 /* IP6 Auth Header */ 188#define IPPROTO_INLSP 52 /* Integ. Net Layer Security */ 189#define IPPROTO_SWIPE 53 /* IP with encryption */ 190#define IPPROTO_NHRP 54 /* Next Hop Resolution */ 191#define IPPROTO_MOBILE 55 /* IP Mobility */ 192#define IPPROTO_TLSP 56 /* Transport Layer Security */ 193#define IPPROTO_SKIP 57 /* SKIP */ 194#define IPPROTO_ICMPV6 58 /* ICMP6 */ 195#define IPPROTO_NONE 59 /* IP6 no next header */ 196#define IPPROTO_DSTOPTS 60 /* IP6 destination option */ 197#define IPPROTO_AHIP 61 /* any host internal protocol */ 198#define IPPROTO_CFTP 62 /* CFTP */ 199#define IPPROTO_HELLO 63 /* "hello" routing protocol */ 200#define IPPROTO_SATEXPAK 64 /* SATNET/Backroom EXPAK */ 201#define IPPROTO_KRYPTOLAN 65 /* Kryptolan */ 202#define IPPROTO_RVD 66 /* Remote Virtual Disk */ 203#define IPPROTO_IPPC 67 /* Pluribus Packet Core */ 204#define IPPROTO_ADFS 68 /* Any distributed FS */ 205#define IPPROTO_SATMON 69 /* Satnet Monitoring */ 206#define IPPROTO_VISA 70 /* VISA Protocol */ 207#define IPPROTO_IPCV 71 /* Packet Core Utility */ 208#define IPPROTO_CPNX 72 /* Comp. Prot. Net. Executive */ 209#define IPPROTO_CPHB 73 /* Comp. Prot. HeartBeat */ 210#define IPPROTO_WSN 74 /* Wang Span Network */ 211#define IPPROTO_PVP 75 /* Packet Video Protocol */ 212#define IPPROTO_BRSATMON 76 /* BackRoom SATNET Monitoring */ 213#define IPPROTO_ND 77 /* Sun net disk proto (temp.) */ 214#define IPPROTO_WBMON 78 /* WIDEBAND Monitoring */ 215#define IPPROTO_WBEXPAK 79 /* WIDEBAND EXPAK */ 216#define IPPROTO_EON 80 /* ISO cnlp */ 217#define IPPROTO_VMTP 81 /* VMTP */ 218#define IPPROTO_SVMTP 82 /* Secure VMTP */ 219#define IPPROTO_VINES 83 /* Banyon VINES */ 220#define IPPROTO_TTP 84 /* TTP */ 221#define IPPROTO_IGP 85 /* NSFNET-IGP */ 222#define IPPROTO_DGP 86 /* dissimilar gateway prot. */ 223#define IPPROTO_TCF 87 /* TCF */ 224#define IPPROTO_IGRP 88 /* Cisco/GXS IGRP */ 225#define IPPROTO_OSPFIGP 89 /* OSPFIGP */ 226#define IPPROTO_SRPC 90 /* Strite RPC protocol */ 227#define IPPROTO_LARP 91 /* Locus Address Resoloution */ 228#define IPPROTO_MTP 92 /* Multicast Transport */ 229#define IPPROTO_AX25 93 /* AX.25 Frames */ 230#define IPPROTO_IPEIP 94 /* IP encapsulated in IP */ 231#define IPPROTO_MICP 95 /* Mobile Int.ing control */ 232#define IPPROTO_SCCSP 96 /* Semaphore Comm. security */ 233#define IPPROTO_ETHERIP 97 /* Ethernet IP encapsulation */ 234#define IPPROTO_ENCAP 98 /* encapsulation header */ 235#define IPPROTO_APES 99 /* any private encr. scheme */ 236#define IPPROTO_GMTP 100 /* GMTP*/ 237#define IPPROTO_IPCOMP 108 /* payload compression (IPComp) */ 238#define IPPROTO_SCTP 132 /* SCTP */ 239#define IPPROTO_MH 135 /* IPv6 Mobility Header */ 240#define IPPROTO_UDPLITE 136 /* UDP-Lite */ 241#define IPPROTO_HIP 139 /* IP6 Host Identity Protocol */ 242#define IPPROTO_SHIM6 140 /* IP6 Shim6 Protocol */ 243/* 101-254: Partly Unassigned */ 244#define IPPROTO_PIM 103 /* Protocol Independent Mcast */ 245#define IPPROTO_CARP 112 /* CARP */ 246#define IPPROTO_PGM 113 /* PGM */ 247#define IPPROTO_MPLS 137 /* MPLS-in-IP */ 248#define IPPROTO_PFSYNC 240 /* PFSYNC */ 249#define IPPROTO_RESERVED_253 253 /* Reserved */ 250#define IPPROTO_RESERVED_254 254 /* Reserved */ 251/* 255: Reserved */ 252/* BSD Private, local use, namespace incursion, no longer used */ 253#define IPPROTO_OLD_DIVERT 254 /* OLD divert pseudo-proto */ 254#define IPPROTO_MAX 256 255 256/* last return value of *_input(), meaning "all job for this pkt is done". */ 257#define IPPROTO_DONE 257 258 259/* Only used internally, so can be outside the range of valid IP protocols. */ 260#define IPPROTO_DIVERT 258 /* divert pseudo-protocol */ 261#define IPPROTO_SEND 259 /* SeND pseudo-protocol */ 262 263/* 264 * Defined to avoid confusion. The master value is defined by 265 * PROTO_SPACER in sys/protosw.h. 266 */ 267#define IPPROTO_SPACER 32767 /* spacer for loadable protos */ 268 269/* 270 * Local port number conventions: 271 * 272 * When a user does a bind(2) or connect(2) with a port number of zero, 273 * a non-conflicting local port address is chosen. 274 * The default range is IPPORT_HIFIRSTAUTO through 275 * IPPORT_HILASTAUTO, although that is settable by sysctl. 276 * 277 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 278 * default assignment range. 279 * 280 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 281 * 282 * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers 283 * into the "high" range. These are reserved for client outbound connections 284 * which do not want to be filtered by any firewalls. 285 * 286 * The value IP_PORTRANGE_LOW changes the range to the "low" are 287 * that is (by convention) restricted to privileged processes. This 288 * convention is based on "vouchsafe" principles only. It is only secure 289 * if you trust the remote host to restrict these ports. 290 * 291 * The default range of ports and the high range can be changed by 292 * sysctl(3). (net.inet.ip.port{hi,low}{first,last}_auto) 293 * 294 * Changing those values has bad security implications if you are 295 * using a stateless firewall that is allowing packets outside of that 296 * range in order to allow transparent outgoing connections. 297 * 298 * Such a firewall configuration will generally depend on the use of these 299 * default values. If you change them, you may find your Security 300 * Administrator looking for you with a heavy object. 301 * 302 * For a slightly more orthodox text view on this: 303 * 304 * ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers 305 * 306 * port numbers are divided into three ranges: 307 * 308 * 0 - 1023 Well Known Ports 309 * 1024 - 49151 Registered Ports 310 * 49152 - 65535 Dynamic and/or Private Ports 311 * 312 */ 313 314/* 315 * Ports < IPPORT_RESERVED are reserved for 316 * privileged processes (e.g. root). (IP_PORTRANGE_LOW) 317 */ 318#define IPPORT_RESERVED 1024 319 320/* 321 * Default local port range, used by IP_PORTRANGE_DEFAULT 322 */ 323#define IPPORT_EPHEMERALFIRST 10000 324#define IPPORT_EPHEMERALLAST 65535 325 326/* 327 * Dynamic port range, used by IP_PORTRANGE_HIGH. 328 */ 329#define IPPORT_HIFIRSTAUTO 49152 330#define IPPORT_HILASTAUTO 65535 331 332/* 333 * Scanning for a free reserved port return a value below IPPORT_RESERVED, 334 * but higher than IPPORT_RESERVEDSTART. Traditionally the start value was 335 * 512, but that conflicts with some well-known-services that firewalls may 336 * have a fit if we use. 337 */ 338#define IPPORT_RESERVEDSTART 600 339 340#define IPPORT_MAX 65535 341 342/* 343 * Definitions of bits in internet address integers. 344 * On subnets, the decomposition of addresses to host and net parts 345 * is done according to subnet mask, not the masks here. 346 */ 347#define IN_CLASSA(i) (((in_addr_t)(i) & 0x80000000) == 0) 348#define IN_CLASSA_NET 0xff000000 349#define IN_CLASSA_NSHIFT 24 350#define IN_CLASSA_HOST 0x00ffffff 351#define IN_CLASSA_MAX 128 352 353#define IN_CLASSB(i) (((in_addr_t)(i) & 0xc0000000) == 0x80000000) 354#define IN_CLASSB_NET 0xffff0000 355#define IN_CLASSB_NSHIFT 16 356#define IN_CLASSB_HOST 0x0000ffff 357#define IN_CLASSB_MAX 65536 358 359#define IN_CLASSC(i) (((in_addr_t)(i) & 0xe0000000) == 0xc0000000) 360#define IN_CLASSC_NET 0xffffff00 361#define IN_CLASSC_NSHIFT 8 362#define IN_CLASSC_HOST 0x000000ff 363 364#define IN_CLASSD(i) (((in_addr_t)(i) & 0xf0000000) == 0xe0000000) 365#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */ 366#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */ 367#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */ 368#define IN_MULTICAST(i) IN_CLASSD(i) 369 370#define IN_EXPERIMENTAL(i) (((in_addr_t)(i) & 0xf0000000) == 0xf0000000) 371#define IN_BADCLASS(i) (((in_addr_t)(i) & 0xf0000000) == 0xf0000000) 372 373#define IN_LINKLOCAL(i) (((in_addr_t)(i) & 0xffff0000) == 0xa9fe0000) 374#define IN_LOOPBACK(i) (((in_addr_t)(i) & 0xff000000) == 0x7f000000) 375#define IN_ZERONET(i) (((in_addr_t)(i) & 0xff000000) == 0) 376 377#define IN_PRIVATE(i) ((((in_addr_t)(i) & 0xff000000) == 0x0a000000) || \ 378 (((in_addr_t)(i) & 0xfff00000) == 0xac100000) || \ 379 (((in_addr_t)(i) & 0xffff0000) == 0xc0a80000)) 380 381#define IN_LOCAL_GROUP(i) (((in_addr_t)(i) & 0xffffff00) == 0xe0000000) 382 383#define IN_ANY_LOCAL(i) (IN_LINKLOCAL(i) || IN_LOCAL_GROUP(i)) 384 385#define INADDR_LOOPBACK ((in_addr_t)0x7f000001) 386#ifndef _KERNEL 387#define INADDR_NONE ((in_addr_t)0xffffffff) /* -1 return */ 388#endif 389 390#define INADDR_UNSPEC_GROUP ((in_addr_t)0xe0000000) /* 224.0.0.0 */ 391#define INADDR_ALLHOSTS_GROUP ((in_addr_t)0xe0000001) /* 224.0.0.1 */ 392#define INADDR_ALLRTRS_GROUP ((in_addr_t)0xe0000002) /* 224.0.0.2 */ 393#define INADDR_ALLRPTS_GROUP ((in_addr_t)0xe0000016) /* 224.0.0.22, IGMPv3 */ 394#define INADDR_CARP_GROUP ((in_addr_t)0xe0000012) /* 224.0.0.18 */ 395#define INADDR_PFSYNC_GROUP ((in_addr_t)0xe00000f0) /* 224.0.0.240 */ 396#define INADDR_ALLMDNS_GROUP ((in_addr_t)0xe00000fb) /* 224.0.0.251 */ 397#define INADDR_MAX_LOCAL_GROUP ((in_addr_t)0xe00000ff) /* 224.0.0.255 */ 398 399#define IN_LOOPBACKNET 127 /* official! */ 400 401#define IN_RFC3021_MASK ((in_addr_t)0xfffffffe) 402 403/* 404 * Options for use with [gs]etsockopt at the IP level. 405 * First word of comment is data type; bool is stored in int. 406 */ 407#define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ 408#define IP_HDRINCL 2 /* int; header is included with data */ 409#define IP_TOS 3 /* int; IP type of service and preced. */ 410#define IP_TTL 4 /* int; IP time to live */ 411#define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ 412#define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ 413#define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ 414#define IP_SENDSRCADDR IP_RECVDSTADDR /* cmsg_type to set src addr */ 415#define IP_RETOPTS 8 /* ip_opts; set/get IP options */ 416#define IP_MULTICAST_IF 9 /* struct in_addr *or* struct ip_mreqn; 417 * set/get IP multicast i/f */ 418#define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ 419#define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */ 420#define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ 421#define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ 422#define IP_MULTICAST_VIF 14 /* set/get IP mcast virt. iface */ 423#define IP_RSVP_ON 15 /* enable RSVP in kernel */ 424#define IP_RSVP_OFF 16 /* disable RSVP in kernel */ 425#define IP_RSVP_VIF_ON 17 /* set RSVP per-vif socket */ 426#define IP_RSVP_VIF_OFF 18 /* unset RSVP per-vif socket */ 427#define IP_PORTRANGE 19 /* int; range to choose for unspec port */ 428#define IP_RECVIF 20 /* bool; receive reception if w/dgram */ 429/* for IPSEC */ 430#define IP_IPSEC_POLICY 21 /* int; set/get security policy */ 431 /* unused; was IP_FAITH */ 432#define IP_ONESBCAST 23 /* bool: send all-ones broadcast */ 433#define IP_BINDANY 24 /* bool: allow bind to any address */ 434#define IP_BINDMULTI 25 /* bool: allow multiple listeners on a tuple */ 435#define IP_RSS_LISTEN_BUCKET 26 /* int; set RSS listen bucket */ 436 437/* 438 * Options for controlling the firewall and dummynet. 439 * Historical options (from 40 to 64) will eventually be 440 * replaced by only two options, IP_FW3 and IP_DUMMYNET3. 441 */ 442#define IP_FW_TABLE_ADD 40 /* add entry */ 443#define IP_FW_TABLE_DEL 41 /* delete entry */ 444#define IP_FW_TABLE_FLUSH 42 /* flush table */ 445#define IP_FW_TABLE_GETSIZE 43 /* get table size */ 446#define IP_FW_TABLE_LIST 44 /* list table contents */ 447 448#define IP_FW3 48 /* generic ipfw v.3 sockopts */ 449#define IP_DUMMYNET3 49 /* generic dummynet v.3 sockopts */ 450 451#define IP_FW_ADD 50 /* add a firewall rule to chain */ 452#define IP_FW_DEL 51 /* delete a firewall rule from chain */ 453#define IP_FW_FLUSH 52 /* flush firewall rule chain */ 454#define IP_FW_ZERO 53 /* clear single/all firewall counter(s) */ 455#define IP_FW_GET 54 /* get entire firewall rule chain */ 456#define IP_FW_RESETLOG 55 /* reset logging counters */ 457 458#define IP_FW_NAT_CFG 56 /* add/config a nat rule */ 459#define IP_FW_NAT_DEL 57 /* delete a nat rule */ 460#define IP_FW_NAT_GET_CONFIG 58 /* get configuration of a nat rule */ 461#define IP_FW_NAT_GET_LOG 59 /* get log of a nat rule */ 462 463#define IP_DUMMYNET_CONFIGURE 60 /* add/configure a dummynet pipe */ 464#define IP_DUMMYNET_DEL 61 /* delete a dummynet pipe from chain */ 465#define IP_DUMMYNET_FLUSH 62 /* flush dummynet */ 466#define IP_DUMMYNET_GET 64 /* get entire dummynet pipes */ 467 468#define IP_RECVTTL 65 /* bool; receive IP TTL w/dgram */ 469#define IP_MINTTL 66 /* minimum TTL for packet or drop */ 470#define IP_DONTFRAG 67 /* don't fragment packet */ 471#define IP_RECVTOS 68 /* bool; receive IP TOS w/dgram */ 472 473/* IPv4 Source Filter Multicast API [RFC3678] */ 474#define IP_ADD_SOURCE_MEMBERSHIP 70 /* join a source-specific group */ 475#define IP_DROP_SOURCE_MEMBERSHIP 71 /* drop a single source */ 476#define IP_BLOCK_SOURCE 72 /* block a source */ 477#define IP_UNBLOCK_SOURCE 73 /* unblock a source */ 478 479/* The following option is private; do not use it from user applications. */ 480#define IP_MSFILTER 74 /* set/get filter list */ 481 482/* Protocol Independent Multicast API [RFC3678] */ 483#define MCAST_JOIN_GROUP 80 /* join an any-source group */ 484#define MCAST_LEAVE_GROUP 81 /* leave all sources for group */ 485#define MCAST_JOIN_SOURCE_GROUP 82 /* join a source-specific group */ 486#define MCAST_LEAVE_SOURCE_GROUP 83 /* leave a single source */ 487#define MCAST_BLOCK_SOURCE 84 /* block a source */ 488#define MCAST_UNBLOCK_SOURCE 85 /* unblock a source */ 489 490/* Flow and RSS definitions */ 491#define IP_FLOWID 90 /* get flow id for the given socket/inp */ 492#define IP_FLOWTYPE 91 /* get flow type (M_HASHTYPE) */ 493#define IP_RSSBUCKETID 92 /* get RSS flowid -> bucket mapping */ 494#define IP_RECVFLOWID 93 /* bool; receive IP flowid/flowtype w/ datagram */ 495#define IP_RECVRSSBUCKETID 94 /* bool; receive IP RSS bucket id w/ datagram */ 496 497/* 498 * Defaults and limits for options 499 */ 500#define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */ 501#define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 502 503/* 504 * The imo_membership vector for each socket is now dynamically allocated at 505 * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized 506 * according to a power-of-two increment. 507 */ 508#define IP_MIN_MEMBERSHIPS 31 509#define IP_MAX_MEMBERSHIPS 4095 510#define IP_MAX_SOURCE_FILTER 1024 /* XXX to be unused */ 511 512/* 513 * Default resource limits for IPv4 multicast source filtering. 514 * These may be modified by sysctl. 515 */ 516#define IP_MAX_GROUP_SRC_FILTER 512 /* sources per group */ 517#define IP_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */ 518#define IP_MAX_SOCK_MUTE_FILTER 128 /* XXX no longer used */ 519 520/* 521 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. 522 */ 523struct ip_mreq { 524 struct in_addr imr_multiaddr; /* IP multicast address of group */ 525 struct in_addr imr_interface; /* local IP address of interface */ 526}; 527 528/* 529 * Modified argument structure for IP_MULTICAST_IF, obtained from Linux. 530 * This is used to specify an interface index for multicast sends, as 531 * the IPv4 legacy APIs do not support this (unless IP_SENDIF is available). 532 */ 533struct ip_mreqn { 534 struct in_addr imr_multiaddr; /* IP multicast address of group */ 535 struct in_addr imr_address; /* local IP address of interface */ 536 int imr_ifindex; /* Interface index; cast to uint32_t */ 537}; 538 539/* 540 * Argument structure for IPv4 Multicast Source Filter APIs. [RFC3678] 541 */ 542struct ip_mreq_source { 543 struct in_addr imr_multiaddr; /* IP multicast address of group */ 544 struct in_addr imr_sourceaddr; /* IP address of source */ 545 struct in_addr imr_interface; /* local IP address of interface */ 546}; 547 548/* 549 * Argument structures for Protocol-Independent Multicast Source 550 * Filter APIs. [RFC3678] 551 */ 552struct group_req { 553 uint32_t gr_interface; /* interface index */ 554 struct sockaddr_storage gr_group; /* group address */ 555}; 556 557struct group_source_req { 558 uint32_t gsr_interface; /* interface index */ 559 struct sockaddr_storage gsr_group; /* group address */ 560 struct sockaddr_storage gsr_source; /* source address */ 561}; 562 563#ifndef __MSFILTERREQ_DEFINED 564#define __MSFILTERREQ_DEFINED 565/* 566 * The following structure is private; do not use it from user applications. 567 * It is used to communicate IP_MSFILTER/IPV6_MSFILTER information between 568 * the RFC 3678 libc functions and the kernel. 569 */ 570struct __msfilterreq { 571 uint32_t msfr_ifindex; /* interface index */ 572 uint32_t msfr_fmode; /* filter mode for group */ 573 uint32_t msfr_nsrcs; /* # of sources in msfr_srcs */ 574 struct sockaddr_storage msfr_group; /* group address */ 575 struct sockaddr_storage *msfr_srcs; /* pointer to the first member 576 * of a contiguous array of 577 * sources to filter in full. 578 */ 579}; 580#endif 581 582struct sockaddr; 583 584/* 585 * Advanced (Full-state) APIs [RFC3678] 586 * The RFC specifies uint_t for the 6th argument to [sg]etsourcefilter(). 587 * We use uint32_t here to be consistent. 588 */ 589int setipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t, 590 uint32_t, struct in_addr *); 591int getipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t *, 592 uint32_t *, struct in_addr *); 593int setsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, 594 uint32_t, uint32_t, struct sockaddr_storage *); 595int getsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, 596 uint32_t *, uint32_t *, struct sockaddr_storage *); 597 598/* 599 * Filter modes; also used to represent per-socket filter mode internally. 600 */ 601#define MCAST_UNDEFINED 0 /* fmode: not yet defined */ 602#define MCAST_INCLUDE 1 /* fmode: include these source(s) */ 603#define MCAST_EXCLUDE 2 /* fmode: exclude these source(s) */ 604 605/* 606 * Argument for IP_PORTRANGE: 607 * - which range to search when port is unspecified at bind() or connect() 608 */ 609#define IP_PORTRANGE_DEFAULT 0 /* default range */ 610#define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 611#define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 612 613/* 614 * Identifiers for IP sysctl nodes 615 */ 616#define IPCTL_FORWARDING 1 /* act as router */ 617#define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */ 618#define IPCTL_DEFTTL 3 /* default TTL */ 619#ifdef notyet 620#define IPCTL_DEFMTU 4 /* default MTU */ 621#endif 622/* IPCTL_RTEXPIRE 5 deprecated */ 623/* IPCTL_RTMINEXPIRE 6 deprecated */ 624/* IPCTL_RTMAXCACHE 7 deprecated */ 625#define IPCTL_SOURCEROUTE 8 /* may perform source routes */ 626#define IPCTL_DIRECTEDBROADCAST 9 /* may re-broadcast received packets */ 627#define IPCTL_INTRQMAXLEN 10 /* max length of netisr queue */ 628#define IPCTL_INTRQDROPS 11 /* number of netisr q drops */ 629#define IPCTL_STATS 12 /* ipstat structure */ 630#define IPCTL_ACCEPTSOURCEROUTE 13 /* may accept source routed packets */ 631#define IPCTL_FASTFORWARDING 14 /* use fast IP forwarding code */ 632 /* 15, unused, was: IPCTL_KEEPFAITH */ 633#define IPCTL_GIF_TTL 16 /* default TTL for gif encap packet */ 634#define IPCTL_INTRDQMAXLEN 17 /* max length of direct netisr queue */ 635#define IPCTL_INTRDQDROPS 18 /* number of direct netisr q drops */ 636 637#endif /* __BSD_VISIBLE */ 638 639#ifdef _KERNEL 640 641struct ifnet; struct mbuf; /* forward declarations for Standard C */ 642 643int in_broadcast(struct in_addr, struct ifnet *); 644int in_canforward(struct in_addr); 645int in_localaddr(struct in_addr); 646int in_localip(struct in_addr); 647int in_ifhasaddr(struct ifnet *, struct in_addr); 648int inet_aton(const char *, struct in_addr *); /* in libkern */ 649char *inet_ntoa(struct in_addr); /* in libkern */ 650char *inet_ntoa_r(struct in_addr ina, char *buf); /* in libkern */ 651char *inet_ntop(int, const void *, char *, socklen_t); /* in libkern */ 652int inet_pton(int af, const char *, void *); /* in libkern */ 653void in_ifdetach(struct ifnet *); 654 655#define in_hosteq(s, t) ((s).s_addr == (t).s_addr) 656#define in_nullhost(x) ((x).s_addr == INADDR_ANY) 657#define in_allhosts(x) ((x).s_addr == htonl(INADDR_ALLHOSTS_GROUP)) 658 659#define satosin(sa) ((struct sockaddr_in *)(sa)) 660#define sintosa(sin) ((struct sockaddr *)(sin)) 661#define ifatoia(ifa) ((struct in_ifaddr *)(ifa)) 662#endif /* _KERNEL */ 663 664/* INET6 stuff */ 665#if __POSIX_VISIBLE >= 200112 666#define __KAME_NETINET_IN_H_INCLUDED_ 667#include <netinet6/in6.h> 668#undef __KAME_NETINET_IN_H_INCLUDED_ 669#endif 670 671#endif /* !_NETINET_IN_H_*/ 672