1 /* 2 * Copyright (c) 2000-2018 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 /* 29 * Copyright (c) 1982, 1986, 1990, 1993 30 * The Regents of the University of California. All rights reserved. 31 * 32 * Redistribution and use in source and binary forms, with or without 33 * modification, are permitted provided that the following conditions 34 * are met: 35 * 1. Redistributions of source code must retain the above copyright 36 * notice, this list of conditions and the following disclaimer. 37 * 2. Redistributions in binary form must reproduce the above copyright 38 * notice, this list of conditions and the following disclaimer in the 39 * documentation and/or other materials provided with the distribution. 40 * 3. All advertising materials mentioning features or use of this software 41 * must display the following acknowledgement: 42 * This product includes software developed by the University of 43 * California, Berkeley and its contributors. 44 * 4. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)in.h 8.3 (Berkeley) 1/3/94 61 * $FreeBSD: src/sys/netinet/in.h,v 1.48.2.2 2001/04/21 14:53:06 ume Exp $ 62 */ 63 64 #ifndef _NETINET_IN_H_ 65 #define _NETINET_IN_H_ 66 67 #ifndef DRIVERKIT 68 #include <sys/appleapiopts.h> 69 #include <stdint.h> /* uint(8|16|32)_t */ 70 71 #ifndef KERNEL 72 #include <Availability.h> 73 #endif 74 75 #else 76 #include <sys/_types.h> 77 #include <sys/_types/_sa_family_t.h> 78 #endif /* DRIVERKIT */ 79 80 #include <sys/_types/_in_addr_t.h> 81 #include <sys/_types/_in_port_t.h> 82 83 #ifndef DRIVERKIT 84 /* 85 * POSIX 1003.1-2003 86 * "Inclusion of the <netinet/in.h> header may also make visible all 87 * symbols from <inttypes.h> and <sys/socket.h>". 88 */ 89 #include <sys/socket.h> 90 #endif /* DRIVERKIT */ 91 92 /* 93 * The following two #includes insure htonl and family are defined 94 */ 95 #include <machine/endian.h> 96 #include <sys/_endian.h> 97 98 /* 99 * Constants and structures defined by the internet system, 100 * Per RFC 790, September 1981, and numerous additions. 101 */ 102 103 /* 104 * Protocols (RFC 1700) 105 */ 106 #define IPPROTO_IP 0 /* dummy for IP */ 107 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 108 #define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */ 109 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 110 #define IPPROTO_ICMP 1 /* control message protocol */ 111 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 112 #define IPPROTO_IGMP 2 /* group mgmt protocol */ 113 #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */ 114 #define IPPROTO_IPV4 4 /* IPv4 encapsulation */ 115 #define IPPROTO_IPIP IPPROTO_IPV4 /* for compatibility */ 116 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 117 #define IPPROTO_TCP 6 /* tcp */ 118 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 119 #define IPPROTO_ST 7 /* Stream protocol II */ 120 #define IPPROTO_EGP 8 /* exterior gateway protocol */ 121 #define IPPROTO_PIGP 9 /* private interior gateway */ 122 #define IPPROTO_RCCMON 10 /* BBN RCC Monitoring */ 123 #define IPPROTO_NVPII 11 /* network voice protocol*/ 124 #define IPPROTO_PUP 12 /* pup */ 125 #define IPPROTO_ARGUS 13 /* Argus */ 126 #define IPPROTO_EMCON 14 /* EMCON */ 127 #define IPPROTO_XNET 15 /* Cross Net Debugger */ 128 #define IPPROTO_CHAOS 16 /* Chaos*/ 129 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 130 #define IPPROTO_UDP 17 /* user datagram protocol */ 131 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 132 #define IPPROTO_MUX 18 /* Multiplexing */ 133 #define IPPROTO_MEAS 19 /* DCN Measurement Subsystems */ 134 #define IPPROTO_HMP 20 /* Host Monitoring */ 135 #define IPPROTO_PRM 21 /* Packet Radio Measurement */ 136 #define IPPROTO_IDP 22 /* xns idp */ 137 #define IPPROTO_TRUNK1 23 /* Trunk-1 */ 138 #define IPPROTO_TRUNK2 24 /* Trunk-2 */ 139 #define IPPROTO_LEAF1 25 /* Leaf-1 */ 140 #define IPPROTO_LEAF2 26 /* Leaf-2 */ 141 #define IPPROTO_RDP 27 /* Reliable Data */ 142 #define IPPROTO_IRTP 28 /* Reliable Transaction */ 143 #define IPPROTO_TP 29 /* tp-4 w/ class negotiation */ 144 #define IPPROTO_BLT 30 /* Bulk Data Transfer */ 145 #define IPPROTO_NSP 31 /* Network Services */ 146 #define IPPROTO_INP 32 /* Merit Internodal */ 147 #define IPPROTO_SEP 33 /* Sequential Exchange */ 148 #define IPPROTO_3PC 34 /* Third Party Connect */ 149 #define IPPROTO_IDPR 35 /* InterDomain Policy Routing */ 150 #define IPPROTO_XTP 36 /* XTP */ 151 #define IPPROTO_DDP 37 /* Datagram Delivery */ 152 #define IPPROTO_CMTP 38 /* Control Message Transport */ 153 #define IPPROTO_TPXX 39 /* TP++ Transport */ 154 #define IPPROTO_IL 40 /* IL transport protocol */ 155 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 156 #define IPPROTO_IPV6 41 /* IP6 header */ 157 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 158 #define IPPROTO_SDRP 42 /* Source Demand Routing */ 159 #define IPPROTO_ROUTING 43 /* IP6 routing header */ 160 #define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */ 161 #define IPPROTO_IDRP 45 /* InterDomain Routing*/ 162 #define IPPROTO_RSVP 46 /* resource reservation */ 163 #define IPPROTO_GRE 47 /* General Routing Encap. */ 164 #define IPPROTO_MHRP 48 /* Mobile Host Routing */ 165 #define IPPROTO_BHA 49 /* BHA */ 166 #define IPPROTO_ESP 50 /* IP6 Encap Sec. Payload */ 167 #define IPPROTO_AH 51 /* IP6 Auth Header */ 168 #define IPPROTO_INLSP 52 /* Integ. Net Layer Security */ 169 #define IPPROTO_SWIPE 53 /* IP with encryption */ 170 #define IPPROTO_NHRP 54 /* Next Hop Resolution */ 171 /* 55-57: Unassigned */ 172 #define IPPROTO_ICMPV6 58 /* ICMP6 */ 173 #define IPPROTO_NONE 59 /* IP6 no next header */ 174 #define IPPROTO_DSTOPTS 60 /* IP6 destination option */ 175 #define IPPROTO_AHIP 61 /* any host internal protocol */ 176 #define IPPROTO_CFTP 62 /* CFTP */ 177 #define IPPROTO_HELLO 63 /* "hello" routing protocol */ 178 #define IPPROTO_SATEXPAK 64 /* SATNET/Backroom EXPAK */ 179 #define IPPROTO_KRYPTOLAN 65 /* Kryptolan */ 180 #define IPPROTO_RVD 66 /* Remote Virtual Disk */ 181 #define IPPROTO_IPPC 67 /* Pluribus Packet Core */ 182 #define IPPROTO_ADFS 68 /* Any distributed FS */ 183 #define IPPROTO_SATMON 69 /* Satnet Monitoring */ 184 #define IPPROTO_VISA 70 /* VISA Protocol */ 185 #define IPPROTO_IPCV 71 /* Packet Core Utility */ 186 #define IPPROTO_CPNX 72 /* Comp. Prot. Net. Executive */ 187 #define IPPROTO_CPHB 73 /* Comp. Prot. HeartBeat */ 188 #define IPPROTO_WSN 74 /* Wang Span Network */ 189 #define IPPROTO_PVP 75 /* Packet Video Protocol */ 190 #define IPPROTO_BRSATMON 76 /* BackRoom SATNET Monitoring */ 191 #define IPPROTO_ND 77 /* Sun net disk proto (temp.) */ 192 #define IPPROTO_WBMON 78 /* WIDEBAND Monitoring */ 193 #define IPPROTO_WBEXPAK 79 /* WIDEBAND EXPAK */ 194 #define IPPROTO_EON 80 /* ISO cnlp */ 195 #define IPPROTO_VMTP 81 /* VMTP */ 196 #define IPPROTO_SVMTP 82 /* Secure VMTP */ 197 #define IPPROTO_VINES 83 /* Banyon VINES */ 198 #define IPPROTO_TTP 84 /* TTP */ 199 #define IPPROTO_IGP 85 /* NSFNET-IGP */ 200 #define IPPROTO_DGP 86 /* dissimilar gateway prot. */ 201 #define IPPROTO_TCF 87 /* TCF */ 202 #define IPPROTO_IGRP 88 /* Cisco/GXS IGRP */ 203 #define IPPROTO_OSPFIGP 89 /* OSPFIGP */ 204 #define IPPROTO_SRPC 90 /* Strite RPC protocol */ 205 #define IPPROTO_LARP 91 /* Locus Address Resoloution */ 206 #define IPPROTO_MTP 92 /* Multicast Transport */ 207 #define IPPROTO_AX25 93 /* AX.25 Frames */ 208 #define IPPROTO_IPEIP 94 /* IP encapsulated in IP */ 209 #define IPPROTO_MICP 95 /* Mobile Int.ing control */ 210 #define IPPROTO_SCCSP 96 /* Semaphore Comm. security */ 211 #define IPPROTO_ETHERIP 97 /* Ethernet IP encapsulation */ 212 #define IPPROTO_ENCAP 98 /* encapsulation header */ 213 #define IPPROTO_APES 99 /* any private encr. scheme */ 214 #define IPPROTO_GMTP 100 /* GMTP*/ 215 /* 101-252: Partly Unassigned */ 216 #define IPPROTO_PIM 103 /* Protocol Independent Mcast */ 217 #define IPPROTO_IPCOMP 108 /* payload compression (IPComp) */ 218 #define IPPROTO_PGM 113 /* PGM */ 219 #define IPPROTO_SCTP 132 /* SCTP */ 220 /* 253-254: Experimentation and testing; 255: Reserved (RFC3692) */ 221 /* BSD Private, local use, namespace incursion */ 222 #ifdef PRIVATE 223 #define IPPROTO_QUIC 253 /* QUIC protocol (Over UDP) */ 224 #endif /* PRIVATE */ 225 #define IPPROTO_DIVERT 254 /* divert pseudo-protocol */ 226 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 227 #define IPPROTO_RAW 255 /* raw IP packet */ 228 229 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 230 #define IPPROTO_MAX 256 231 232 /* last return value of *_input(), meaning "all job for this pkt is done". */ 233 #define IPPROTO_DONE 257 234 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 235 236 /* 237 * Local port number conventions: 238 * 239 * When a user does a bind(2) or connect(2) with a port number of zero, 240 * a non-conflicting local port address is chosen. 241 * The default range is IPPORT_RESERVED through 242 * IPPORT_USERRESERVED, although that is settable by sysctl. 243 * 244 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 245 * default assignment range. 246 * 247 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 248 * 249 * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers 250 * into the "high" range. These are reserved for client outbound connections 251 * which do not want to be filtered by any firewalls. 252 * 253 * The value IP_PORTRANGE_LOW changes the range to the "low" are 254 * that is (by convention) restricted to privileged processes. This 255 * convention is based on "vouchsafe" principles only. It is only secure 256 * if you trust the remote host to restrict these ports. 257 * 258 * The default range of ports and the high range can be changed by 259 * sysctl(3). (net.inet.ip.port{hi,low}{first,last}_auto) 260 * 261 * Changing those values has bad security implications if you are 262 * using a a stateless firewall that is allowing packets outside of that 263 * range in order to allow transparent outgoing connections. 264 * 265 * Such a firewall configuration will generally depend on the use of these 266 * default values. If you change them, you may find your Security 267 * Administrator looking for you with a heavy object. 268 * 269 * For a slightly more orthodox text view on this: 270 * 271 * ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers 272 * 273 * port numbers are divided into three ranges: 274 * 275 * 0 - 1023 Well Known Ports 276 * 1024 - 49151 Registered Ports 277 * 49152 - 65535 Dynamic and/or Private Ports 278 * 279 */ 280 281 #define __DARWIN_IPPORT_RESERVED 1024 282 283 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 284 /* 285 * Ports < IPPORT_RESERVED are reserved for 286 * privileged processes (e.g. root). (IP_PORTRANGE_LOW) 287 * Ports > IPPORT_USERRESERVED are reserved 288 * for servers, not necessarily privileged. (IP_PORTRANGE_DEFAULT) 289 */ 290 #ifndef IPPORT_RESERVED 291 #define IPPORT_RESERVED __DARWIN_IPPORT_RESERVED 292 #endif 293 #define IPPORT_USERRESERVED 5000 294 295 /* 296 * Default local port range to use by setting IP_PORTRANGE_HIGH 297 */ 298 #define IPPORT_HIFIRSTAUTO 49152 299 #define IPPORT_HILASTAUTO 65535 300 301 /* 302 * Scanning for a free reserved port return a value below IPPORT_RESERVED, 303 * but higher than IPPORT_RESERVEDSTART. Traditionally the start value was 304 * 512, but that conflicts with some well-known-services that firewalls may 305 * have a fit if we use. 306 */ 307 #define IPPORT_RESERVEDSTART 600 308 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 309 310 /* 311 * Internet address (a structure for historical reasons) 312 */ 313 struct in_addr { 314 in_addr_t s_addr; 315 }; 316 317 /* 318 * Definitions of bits in internet address integers. 319 * On subnets, the decomposition of addresses to host and net parts 320 * is done according to subnet mask, not the masks here. 321 */ 322 #define INADDR_ANY (u_int32_t)0x00000000 323 #define INADDR_BROADCAST (u_int32_t)0xffffffff /* must be masked */ 324 325 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 326 #define IN_CLASSA(i) (((u_int32_t)(i) & 0x80000000) == 0) 327 #define IN_CLASSA_NET 0xff000000 328 #define IN_CLASSA_NSHIFT 24 329 #define IN_CLASSA_HOST 0x00ffffff 330 #define IN_CLASSA_MAX 128 331 332 #define IN_CLASSB(i) (((u_int32_t)(i) & 0xc0000000) == 0x80000000) 333 #define IN_CLASSB_NET 0xffff0000 334 #define IN_CLASSB_NSHIFT 16 335 #define IN_CLASSB_HOST 0x0000ffff 336 #define IN_CLASSB_MAX 65536 337 338 #define IN_CLASSC(i) (((u_int32_t)(i) & 0xe0000000) == 0xc0000000) 339 #define IN_CLASSC_NET 0xffffff00 340 #define IN_CLASSC_NSHIFT 8 341 #define IN_CLASSC_HOST 0x000000ff 342 343 #define IN_CLASSD(i) (((u_int32_t)(i) & 0xf0000000) == 0xe0000000) 344 #define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */ 345 #define IN_CLASSD_NSHIFT 28 /* net and host fields, but */ 346 #define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */ 347 #define IN_MULTICAST(i) IN_CLASSD(i) 348 349 #define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000) 350 #define IN_BADCLASS(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000) 351 352 #define INADDR_LOOPBACK (u_int32_t)0x7f000001 353 354 #ifndef KERNEL 355 #define INADDR_NONE 0xffffffff /* -1 return */ 356 #endif 357 358 #define INADDR_UNSPEC_GROUP (u_int32_t)0xe0000000 /* 224.0.0.0 */ 359 #define INADDR_ALLHOSTS_GROUP (u_int32_t)0xe0000001 /* 224.0.0.1 */ 360 #define INADDR_ALLRTRS_GROUP (u_int32_t)0xe0000002 /* 224.0.0.2 */ 361 #define INADDR_ALLRPTS_GROUP (u_int32_t)0xe0000016 /* 224.0.0.22, IGMPv3 */ 362 #define INADDR_CARP_GROUP (u_int32_t)0xe0000012 /* 224.0.0.18 */ 363 #define INADDR_PFSYNC_GROUP (u_int32_t)0xe00000f0 /* 224.0.0.240 */ 364 #define INADDR_ALLMDNS_GROUP (u_int32_t)0xe00000fb /* 224.0.0.251 */ 365 #define INADDR_MAX_LOCAL_GROUP (u_int32_t)0xe00000ff /* 224.0.0.255 */ 366 367 #ifdef __APPLE__ 368 #define IN_LINKLOCALNETNUM (u_int32_t)0xA9FE0000 /* 169.254.0.0 */ 369 #define IN_LINKLOCAL(i) (((u_int32_t)(i) & IN_CLASSB_NET) == IN_LINKLOCALNETNUM) 370 #define IN_LOOPBACK(i) (((u_int32_t)(i) & 0xff000000) == 0x7f000000) 371 #define IN_ZERONET(i) (((u_int32_t)(i) & 0xff000000) == 0) 372 373 #define IN_PRIVATE(i) ((((u_int32_t)(i) & 0xff000000) == 0x0a000000) || \ 374 (((u_int32_t)(i) & 0xfff00000) == 0xac100000) || \ 375 (((u_int32_t)(i) & 0xffff0000) == 0xc0a80000)) 376 377 #ifdef PRIVATE 378 #define IN_SHARED_ADDRESS_SPACE(i) ((((u_int32_t)(i)) & (u_int32_t)0xffc00000) \ 379 == (u_int32_t)0x64400000) 380 381 #define IN_DS_LITE(i) ((((u_int32_t)(i)) & (u_int32_t)0xfffffff8) == (u_int32_t)0xc0000000) 382 383 #define IN_6TO4_RELAY_ANYCAST(i) ((((u_int32_t)(i)) & (u_int32_t)IN_CLASSC_NET) == (u_int32_t)0xc0586300) 384 #endif 385 386 #define IN_LOCAL_GROUP(i) (((u_int32_t)(i) & 0xffffff00) == 0xe0000000) 387 388 #define IN_ANY_LOCAL(i) (IN_LINKLOCAL(i) || IN_LOCAL_GROUP(i)) 389 #endif /* __APPLE__ */ 390 391 #define IN_LOOPBACKNET 127 /* official! */ 392 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 393 394 /* 395 * Socket address, internet style. 396 */ 397 struct sockaddr_in { 398 __uint8_t sin_len; 399 sa_family_t sin_family; 400 in_port_t sin_port; 401 struct in_addr sin_addr; 402 char sin_zero[8]; 403 }; 404 405 #define IN_ARE_ADDR_EQUAL(a, b) \ 406 (bcmp(&(a)->s_addr, &(b)->s_addr, \ 407 sizeof (struct in_addr)) == 0) 408 409 #ifdef PRIVATE 410 /* 411 * sockaddr_in with scope ID field; this is used internally to keep 412 * track of scoped route entries in the routing table. The fact that 413 * such a value is embedded in the structure is an artifact of the 414 * current implementation which could change in future. 415 */ 416 struct sockaddr_inifscope { 417 __uint8_t sin_len; 418 sa_family_t sin_family; 419 in_port_t sin_port; 420 struct in_addr sin_addr; 421 /* 422 * To avoid possible conflict with an overlaid sockaddr_inarp 423 * having sin_other set to SIN_PROXY, we use the first 4-bytes 424 * of sin_zero since sin_srcaddr is one of the unused fields 425 * in sockaddr_inarp. 426 */ 427 union { 428 char sin_zero[8]; 429 struct { 430 __uint32_t ifscope; 431 } _in_index; 432 } un; 433 #define sin_scope_id un._in_index.ifscope 434 }; 435 436 #endif /* PRIVATE */ 437 438 #define INET_ADDRSTRLEN 16 439 440 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 441 /* 442 * Structure used to describe IP options. 443 * Used to store options internally, to pass them to a process, 444 * or to restore options retrieved earlier. 445 * The ip_dst is used for the first-hop gateway when using a source route 446 * (this gets put into the header proper). 447 */ 448 struct ip_opts { 449 struct in_addr ip_dst; /* first hop, 0 w/o src rt */ 450 char ip_opts[40]; /* actually variable in size */ 451 }; 452 453 /* 454 * Options for use with [gs]etsockopt at the IP level. 455 * First word of comment is data type; bool is stored in int. 456 */ 457 #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ 458 #define IP_HDRINCL 2 /* int; header is included with data */ 459 #define IP_TOS 3 /* int; IP type of service and preced. */ 460 #define IP_TTL 4 /* int; IP time to live */ 461 #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ 462 #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ 463 #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ 464 #define IP_RETOPTS 8 /* ip_opts; set/get IP options */ 465 #define IP_MULTICAST_IF 9 /* u_char; set/get IP multicast i/f */ 466 #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ 467 #define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */ 468 #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ 469 #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ 470 #define IP_MULTICAST_VIF 14 /* set/get IP mcast virt. iface */ 471 #define IP_RSVP_ON 15 /* enable RSVP in kernel */ 472 #define IP_RSVP_OFF 16 /* disable RSVP in kernel */ 473 #define IP_RSVP_VIF_ON 17 /* set RSVP per-vif socket */ 474 #define IP_RSVP_VIF_OFF 18 /* unset RSVP per-vif socket */ 475 #define IP_PORTRANGE 19 /* int; range to choose for unspec port */ 476 #define IP_RECVIF 20 /* bool; receive reception if w/dgram */ 477 /* for IPSEC */ 478 #define IP_IPSEC_POLICY 21 /* int; set/get security policy */ 479 #define IP_FAITH 22 /* deprecated */ 480 #ifdef __APPLE__ 481 #define IP_STRIPHDR 23 /* bool: drop receive of raw IP header */ 482 #endif 483 #define IP_RECVTTL 24 /* bool; receive reception TTL w/dgram */ 484 #define IP_BOUND_IF 25 /* int; set/get bound interface */ 485 #define IP_PKTINFO 26 /* get pktinfo on recv socket, set src on sent dgram */ 486 #define IP_RECVPKTINFO IP_PKTINFO /* receive pktinfo w/dgram */ 487 #define IP_RECVTOS 27 /* bool; receive IP TOS w/dgram */ 488 #define IP_DONTFRAG 28 /* don't fragment packet */ 489 490 #define IP_FW_ADD 40 /* add a firewall rule to chain */ 491 #define IP_FW_DEL 41 /* delete a firewall rule from chain */ 492 #define IP_FW_FLUSH 42 /* flush firewall rule chain */ 493 #define IP_FW_ZERO 43 /* clear single/all firewall counter(s) */ 494 #define IP_FW_GET 44 /* get entire firewall rule chain */ 495 #define IP_FW_RESETLOG 45 /* reset logging counters */ 496 497 /* These older firewall socket option codes are maintained for backward compatibility. */ 498 #define IP_OLD_FW_ADD 50 /* add a firewall rule to chain */ 499 #define IP_OLD_FW_DEL 51 /* delete a firewall rule from chain */ 500 #define IP_OLD_FW_FLUSH 52 /* flush firewall rule chain */ 501 #define IP_OLD_FW_ZERO 53 /* clear single/all firewall counter(s) */ 502 #define IP_OLD_FW_GET 54 /* get entire firewall rule chain */ 503 #define IP_NAT__XXX 55 /* set/get NAT opts XXX Deprecated, do not use */ 504 #define IP_OLD_FW_RESETLOG 56 /* reset logging counters */ 505 506 #define IP_DUMMYNET_CONFIGURE 60 /* add/configure a dummynet pipe */ 507 #define IP_DUMMYNET_DEL 61 /* delete a dummynet pipe from chain */ 508 #define IP_DUMMYNET_FLUSH 62 /* flush dummynet */ 509 #define IP_DUMMYNET_GET 64 /* get entire dummynet pipes */ 510 511 #define IP_TRAFFIC_MGT_BACKGROUND 65 /* int*; get background IO flags; set background IO */ 512 #define IP_MULTICAST_IFINDEX 66 /* int*; set/get IP multicast i/f index */ 513 514 /* IPv4 Source Filter Multicast API [RFC3678] */ 515 #define IP_ADD_SOURCE_MEMBERSHIP 70 /* join a source-specific group */ 516 #define IP_DROP_SOURCE_MEMBERSHIP 71 /* drop a single source */ 517 #define IP_BLOCK_SOURCE 72 /* block a source */ 518 #define IP_UNBLOCK_SOURCE 73 /* unblock a source */ 519 520 /* The following option is private; do not use it from user applications. */ 521 #define IP_MSFILTER 74 /* set/get filter list */ 522 523 /* Protocol Independent Multicast API [RFC3678] */ 524 #define MCAST_JOIN_GROUP 80 /* join an any-source group */ 525 #define MCAST_LEAVE_GROUP 81 /* leave all sources for group */ 526 #define MCAST_JOIN_SOURCE_GROUP 82 /* join a source-specific group */ 527 #define MCAST_LEAVE_SOURCE_GROUP 83 /* leave a single source */ 528 #define MCAST_BLOCK_SOURCE 84 /* block a source */ 529 #define MCAST_UNBLOCK_SOURCE 85 /* unblock a source */ 530 531 #ifdef PRIVATE 532 #define IP_NO_IFT_CELLULAR 6969 /* for internal use only */ 533 #define IP_NO_IFT_PDP IP_NO_IFT_CELLULAR /* deprecated */ 534 #define IP_OUT_IF 9696 /* for internal use only */ 535 #endif /* PRIVATE */ 536 537 /* 538 * Defaults and limits for options 539 */ 540 #define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */ 541 #define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 542 543 /* 544 * The imo_membership vector for each socket is now dynamically allocated at 545 * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized 546 * according to a power-of-two increment. 547 */ 548 #define IP_MIN_MEMBERSHIPS 31 549 #define IP_MAX_MEMBERSHIPS 4095 550 551 /* 552 * Default resource limits for IPv4 multicast source filtering. 553 * These may be modified by sysctl. 554 */ 555 #define IP_MAX_GROUP_SRC_FILTER 512 /* sources per group */ 556 #define IP_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */ 557 #define IP_MAX_SOCK_MUTE_FILTER 128 /* XXX no longer used */ 558 559 #ifndef PLATFORM_DriverKit 560 /* 561 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. 562 */ 563 struct ip_mreq { 564 struct in_addr imr_multiaddr; /* IP multicast address of group */ 565 struct in_addr imr_interface; /* local IP address of interface */ 566 }; 567 568 /* 569 * Modified argument structure for IP_MULTICAST_IF, obtained from Linux. 570 * This is used to specify an interface index for multicast sends, as 571 * the IPv4 legacy APIs do not support this (unless IP_SENDIF is available). 572 */ 573 struct ip_mreqn { 574 struct in_addr imr_multiaddr; /* IP multicast address of group */ 575 struct in_addr imr_address; /* local IP address of interface */ 576 int imr_ifindex; /* Interface index; cast to uint32_t */ 577 }; 578 579 #pragma pack(4) 580 /* 581 * Argument structure for IPv4 Multicast Source Filter APIs. [RFC3678] 582 */ 583 struct ip_mreq_source { 584 struct in_addr imr_multiaddr; /* IP multicast address of group */ 585 struct in_addr imr_sourceaddr; /* IP address of source */ 586 struct in_addr imr_interface; /* local IP address of interface */ 587 }; 588 589 /* 590 * Argument structures for Protocol-Independent Multicast Source 591 * Filter APIs. [RFC3678] 592 */ 593 struct group_req { 594 uint32_t gr_interface; /* interface index */ 595 struct sockaddr_storage gr_group; /* group address */ 596 }; 597 598 struct group_source_req { 599 uint32_t gsr_interface; /* interface index */ 600 struct sockaddr_storage gsr_group; /* group address */ 601 struct sockaddr_storage gsr_source; /* source address */ 602 }; 603 604 #ifndef __MSFILTERREQ_DEFINED 605 #define __MSFILTERREQ_DEFINED 606 /* 607 * The following structure is private; do not use it from user applications. 608 * It is used to communicate IP_MSFILTER/IPV6_MSFILTER information between 609 * the RFC 3678 libc functions and the kernel. 610 */ 611 struct __msfilterreq { 612 uint32_t msfr_ifindex; /* interface index */ 613 uint32_t msfr_fmode; /* filter mode for group */ 614 uint32_t msfr_nsrcs; /* # of sources in msfr_srcs */ 615 uint32_t __msfr_align; 616 struct sockaddr_storage msfr_group; /* group address */ 617 struct sockaddr_storage *msfr_srcs; 618 }; 619 620 #ifdef BSD_KERNEL_PRIVATE 621 struct __msfilterreq32 { 622 uint32_t msfr_ifindex; /* interface index */ 623 uint32_t msfr_fmode; /* filter mode for group */ 624 uint32_t msfr_nsrcs; /* # of sources in msfr_srcs */ 625 uint32_t __msfr_align; 626 struct sockaddr_storage msfr_group; /* group address */ 627 user32_addr_t msfr_srcs; 628 }; 629 630 struct __msfilterreq64 { 631 uint32_t msfr_ifindex; /* interface index */ 632 uint32_t msfr_fmode; /* filter mode for group */ 633 uint32_t msfr_nsrcs; /* # of sources in msfr_srcs */ 634 uint32_t __msfr_align; 635 struct sockaddr_storage msfr_group; /* group address */ 636 user64_addr_t msfr_srcs; 637 }; 638 #endif /* BSD_KERNEL_PRIVATE */ 639 #endif /* __MSFILTERREQ_DEFINED */ 640 641 #pragma pack() 642 struct sockaddr; 643 644 #ifndef KERNEL 645 /* 646 * Advanced (Full-state) APIs [RFC3678] 647 * The RFC specifies uint_t for the 6th argument to [sg]etsourcefilter(). 648 * We use uint32_t here to be consistent. 649 */ 650 int setipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t, 651 uint32_t, struct in_addr *) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3); 652 int getipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t *, 653 uint32_t *, struct in_addr *) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3); 654 int setsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, 655 uint32_t, uint32_t, struct sockaddr_storage *) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3); 656 int getsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, 657 uint32_t *, uint32_t *, struct sockaddr_storage *) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3); 658 #endif 659 #endif /* PLATFORM_DriverKit */ 660 661 /* 662 * Filter modes; also used to represent per-socket filter mode internally. 663 */ 664 #define MCAST_UNDEFINED 0 /* fmode: not yet defined */ 665 #define MCAST_INCLUDE 1 /* fmode: include these source(s) */ 666 #define MCAST_EXCLUDE 2 /* fmode: exclude these source(s) */ 667 668 /* 669 * Argument for IP_PORTRANGE: 670 * - which range to search when port is unspecified at bind() or connect() 671 */ 672 #define IP_PORTRANGE_DEFAULT 0 /* default range */ 673 #define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 674 #define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 675 676 677 /* 678 * IP_PKTINFO: Packet information (equivalent to RFC2292 sec 5 for IPv4) 679 * This structure is used for 680 * 681 * 1) Receiving ancilliary data about the datagram if IP_PKTINFO sockopt is 682 * set on the socket. In this case ipi_ifindex will contain the interface 683 * index the datagram was received on, ipi_addr is the IP address the 684 * datagram was received to. 685 * 686 * 2) Sending a datagram using a specific interface or IP source address. 687 * if ipi_ifindex is set to non-zero when in_pktinfo is passed as 688 * ancilliary data of type IP_PKTINFO, this will be used as the source 689 * interface to send the datagram from. If ipi_ifindex is null, ip_spec_dst 690 * will be used for the source address. 691 * 692 * Note: if IP_BOUND_IF is set on the socket, ipi_ifindex in the ancillary 693 * IP_PKTINFO option silently overrides the bound interface when it is 694 * specified during send time. 695 */ 696 struct in_pktinfo { 697 unsigned int ipi_ifindex; /* send/recv interface index */ 698 struct in_addr ipi_spec_dst; /* Local address */ 699 struct in_addr ipi_addr; /* IP Header dst address */ 700 }; 701 702 /* 703 * Definitions for inet sysctl operations. 704 * 705 * Third level is protocol number. 706 * Fourth level is desired variable within that protocol. 707 */ 708 #define IPPROTO_MAXID (IPPROTO_AH + 1) /* don't list to IPPROTO_MAX */ 709 710 #ifdef BSD_KERNEL_PRIVATE 711 #define CTL_IPPROTO_NAMES { \ 712 { "ip", CTLTYPE_NODE }, \ 713 { "icmp", CTLTYPE_NODE }, \ 714 { "igmp", CTLTYPE_NODE }, \ 715 { "ggp", CTLTYPE_NODE }, \ 716 { 0, 0 }, \ 717 { 0, 0 }, \ 718 { "tcp", CTLTYPE_NODE }, \ 719 { 0, 0 }, \ 720 { "egp", CTLTYPE_NODE }, \ 721 { 0, 0 }, \ 722 { 0, 0 }, \ 723 { 0, 0 }, \ 724 { "pup", CTLTYPE_NODE }, \ 725 { 0, 0 }, \ 726 { 0, 0 }, \ 727 { 0, 0 }, \ 728 { 0, 0 }, \ 729 { "udp", CTLTYPE_NODE }, \ 730 { 0, 0 }, \ 731 { 0, 0 }, \ 732 { 0, 0 }, \ 733 { 0, 0 }, \ 734 { "idp", CTLTYPE_NODE }, \ 735 { 0, 0 }, \ 736 { 0, 0 }, \ 737 { 0, 0 }, \ 738 { 0, 0 }, \ 739 { 0, 0 }, \ 740 { 0, 0 }, \ 741 { 0, 0 }, \ 742 { 0, 0 }, \ 743 { 0, 0 }, \ 744 { 0, 0 }, \ 745 { 0, 0 }, \ 746 { 0, 0 }, \ 747 { 0, 0 }, \ 748 { 0, 0 }, \ 749 { 0, 0 }, \ 750 { 0, 0 }, \ 751 { 0, 0 }, \ 752 { 0, 0 }, \ 753 { 0, 0 }, \ 754 { 0, 0 }, \ 755 { 0, 0 }, \ 756 { 0, 0 }, \ 757 { 0, 0 }, \ 758 { 0, 0 }, \ 759 { 0, 0 }, \ 760 { 0, 0 }, \ 761 { 0, 0 }, \ 762 { 0, 0 }, \ 763 { "ipsec", CTLTYPE_NODE }, \ 764 } 765 #endif /* BSD_KERNEL_PRIVATE */ 766 767 /* 768 * Names for IP sysctl objects 769 */ 770 #define IPCTL_FORWARDING 1 /* act as router */ 771 #define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */ 772 #define IPCTL_DEFTTL 3 /* default TTL */ 773 #ifdef notyet 774 #define IPCTL_DEFMTU 4 /* default MTU */ 775 #endif 776 #define IPCTL_RTEXPIRE 5 /* cloned route expiration time */ 777 #define IPCTL_RTMINEXPIRE 6 /* min value for expiration time */ 778 #define IPCTL_RTMAXCACHE 7 /* trigger level for dynamic expire */ 779 #define IPCTL_SOURCEROUTE 8 /* may perform source routes */ 780 #define IPCTL_DIRECTEDBROADCAST 9 /* may re-broadcast received packets */ 781 #define IPCTL_INTRQMAXLEN 10 /* max length of netisr queue */ 782 #define IPCTL_INTRQDROPS 11 /* number of netisr q drops */ 783 #define IPCTL_STATS 12 /* ipstat structure */ 784 #define IPCTL_ACCEPTSOURCEROUTE 13 /* may accept source routed packets */ 785 #define IPCTL_FASTFORWARDING 14 /* use fast IP forwarding code */ 786 #define IPCTL_KEEPFAITH 15 /* deprecated */ 787 #define IPCTL_GIF_TTL 16 /* default TTL for gif encap packet */ 788 #define IPCTL_MAXID 17 789 790 #ifdef BSD_KERNEL_PRIVATE 791 792 #define IPCTL_NAMES { \ 793 { 0, 0 }, \ 794 { "forwarding", CTLTYPE_INT }, \ 795 { "redirect", CTLTYPE_INT }, \ 796 { "ttl", CTLTYPE_INT }, \ 797 { "mtu", CTLTYPE_INT }, \ 798 { "rtexpire", CTLTYPE_INT }, \ 799 { "rtminexpire", CTLTYPE_INT }, \ 800 { "rtmaxcache", CTLTYPE_INT }, \ 801 { "sourceroute", CTLTYPE_INT }, \ 802 { "directed-broadcast", CTLTYPE_INT }, \ 803 { "intr-queue-maxlen", CTLTYPE_INT }, \ 804 { "intr-queue-drops", CTLTYPE_INT }, \ 805 { "stats", CTLTYPE_STRUCT }, \ 806 { "accept_sourceroute", CTLTYPE_INT }, \ 807 { "fastforwarding", CTLTYPE_INT }, \ 808 { "keepfaith", CTLTYPE_INT }, \ 809 { "gifttl", CTLTYPE_INT }, \ 810 } 811 #endif /* BSD_KERNEL_PRIVATE */ 812 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 813 814 /* INET6 stuff */ 815 #define __KAME_NETINET_IN_H_INCLUDED_ 816 #include <netinet6/in6.h> 817 #undef __KAME_NETINET_IN_H_INCLUDED_ 818 819 #ifdef PRIVATE 820 /* 821 * Minimal sized structure to hold an IPv4 or IPv6 socket address 822 * as sockaddr_storage can waste memory 823 */ 824 union sockaddr_in_4_6 { 825 struct sockaddr sa; 826 struct sockaddr_in sin; 827 struct sockaddr_in6 sin6; 828 }; 829 #define CLAT46_HDR_EXPANSION_OVERHD (sizeof(struct ip6_hdr) - sizeof(struct ip)) 830 831 /* 832 * Recommended DiffServ Code Point values 833 */ 834 835 #define _DSCP_DF 0 /* RFC 2474 */ 836 837 #define _DSCP_CS0 0 /* RFC 2474 */ 838 #define _DSCP_CS1 8 /* RFC 2474 */ 839 #define _DSCP_CS2 16 /* RFC 2474 */ 840 #define _DSCP_CS3 24 /* RFC 2474 */ 841 #define _DSCP_CS4 32 /* RFC 2474 */ 842 #define _DSCP_CS5 40 /* RFC 2474 */ 843 #define _DSCP_CS6 48 /* RFC 2474 */ 844 #define _DSCP_CS7 56 /* RFC 2474 */ 845 846 #define _DSCP_EF 46 /* RFC 2474 */ 847 #define _DSCP_VA 44 /* RFC 5865 */ 848 849 #define _DSCP_AF11 10 /* RFC 2597 */ 850 #define _DSCP_AF12 12 /* RFC 2597 */ 851 #define _DSCP_AF13 14 /* RFC 2597 */ 852 #define _DSCP_AF21 18 /* RFC 2597 */ 853 #define _DSCP_AF22 20 /* RFC 2597 */ 854 #define _DSCP_AF23 22 /* RFC 2597 */ 855 #define _DSCP_AF31 26 /* RFC 2597 */ 856 #define _DSCP_AF32 28 /* RFC 2597 */ 857 #define _DSCP_AF33 30 /* RFC 2597 */ 858 #define _DSCP_AF41 34 /* RFC 2597 */ 859 #define _DSCP_AF42 36 /* RFC 2597 */ 860 #define _DSCP_AF43 38 /* RFC 2597 */ 861 862 #define _DSCP_52 52 /* Wi-Fi WMM Certification: Sigma */ 863 864 #define _MAX_DSCP 63 /* coded on 6 bits */ 865 866 #endif /* PRIVATE */ 867 868 #ifndef PLATFORM_DriverKit 869 #ifdef KERNEL 870 #ifdef BSD_KERNEL_PRIVATE 871 #include <mach/boolean.h> 872 873 struct ip; 874 struct ifnet; 875 struct mbuf; 876 877 extern boolean_t in_broadcast(struct in_addr, struct ifnet *); 878 extern boolean_t in_canforward(struct in_addr); 879 extern u_int32_t in_netof(struct in_addr); 880 881 extern uint32_t os_cpu_in_cksum_mbuf(struct mbuf *m, int len, int off, 882 uint32_t initial_sum); 883 884 extern uint16_t inet_cksum(struct mbuf *, uint32_t, uint32_t, uint32_t); 885 extern uint16_t inet_cksum_buffer(const void *, uint32_t, uint32_t, uint32_t); 886 extern uint16_t in_addword(uint16_t, uint16_t); 887 extern uint16_t in_pseudo(uint32_t, uint32_t, uint32_t); 888 extern uint16_t in_pseudo64(uint64_t, uint64_t, uint64_t); 889 extern uint16_t in_cksum_hdr_opt(const struct ip *); 890 extern uint16_t ip_cksum_hdr_dir(struct mbuf *, uint32_t, int); 891 extern uint16_t ip_cksum_hdr_dir_buffer(const void *, uint32_t, uint32_t, int); 892 extern uint32_t in_finalize_cksum(struct mbuf *, uint32_t, uint32_t); 893 extern uint16_t b_sum16(const void *buf, int len); 894 #if DEBUG || DEVELOPMENT 895 extern uint32_t in_cksum_mbuf_ref(struct mbuf *, int, int, uint32_t); 896 #endif /* DEBUG || DEVELOPMENT */ 897 898 extern int in_getconninfo(struct socket *, sae_connid_t, uint32_t *, 899 uint32_t *, int32_t *, user_addr_t, socklen_t *, user_addr_t, socklen_t *, 900 uint32_t *, user_addr_t, uint32_t *); 901 extern struct in_ifaddr * inifa_ifpwithflag(struct ifnet *, uint32_t); 902 extern struct in_ifaddr * inifa_ifpclatv4(struct ifnet *); 903 904 #define in_cksum(_m, _l) \ 905 inet_cksum(_m, 0, 0, _l) 906 #define in_cksum_buffer(_b, _l) \ 907 inet_cksum_buffer(_b, 0, 0, _l) 908 #define ip_cksum_hdr_in(_m, _l) \ 909 ip_cksum_hdr_dir(_m, _l, 0) 910 #define ip_cksum_hdr_out(_m, _l) \ 911 ip_cksum_hdr_dir(_m, _l, 1) 912 913 #define in_cksum_hdr(_ip) \ 914 (~b_sum16(_ip, sizeof (struct ip)) & 0xffff) 915 916 #define in_cksum_offset(_m, _o) \ 917 ((void) in_finalize_cksum(_m, _o, CSUM_DELAY_IP)) 918 #define in_delayed_cksum(_m) \ 919 ((void) in_finalize_cksum(_m, 0, CSUM_DELAY_DATA)) 920 #define in_delayed_cksum_offset(_m, _o) \ 921 ((void) in_finalize_cksum(_m, _o, CSUM_DELAY_DATA)) 922 923 #define in_hosteq(s, t) ((s).s_addr == (t).s_addr) 924 #define in_nullhost(x) ((x).s_addr == INADDR_ANY) 925 #define in_allhosts(x) ((x).s_addr == htonl(INADDR_ALLHOSTS_GROUP)) 926 927 #define SIN(s) ((struct sockaddr_in *)(void *)s) 928 #define satosin(sa) SIN(sa) 929 #define sintosa(sin) ((struct sockaddr *)(void *)(sin)) 930 #define SINIFSCOPE(s) ((struct sockaddr_inifscope *)(void *)(s)) 931 932 #define IPTOS_UNSPEC (-1) /* TOS byte not set */ 933 #define IPTOS_MASK 0xFF /* TOS byte mask */ 934 #endif /* BSD_KERNEL_PRIVATE */ 935 936 #ifdef KERNEL_PRIVATE 937 /* exported for ApplicationFirewall */ 938 extern int in_localaddr(struct in_addr); 939 extern int inaddr_local(struct in_addr); 940 941 extern char *inet_ntoa(struct in_addr); 942 extern char *inet_ntoa_r(struct in_addr ina, char *buf, 943 size_t buflen); 944 extern int inet_pton(int af, const char *, void *); 945 #endif /* KERNEL_PRIVATE */ 946 947 #define MAX_IPv4_STR_LEN 16 948 #define MAX_IPv6_STR_LEN 64 949 950 extern int inet_aton(const char *, struct in_addr *); /* in libkern */ 951 extern const char *inet_ntop(int, const void *, char *, socklen_t); /* in libkern*/ 952 #endif /* KERNEL */ 953 954 #ifndef KERNEL 955 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 956 __BEGIN_DECLS 957 int bindresvport(int, struct sockaddr_in *); 958 struct sockaddr; 959 int bindresvport_sa(int, struct sockaddr *); 960 __END_DECLS 961 #endif 962 #endif /* !KERNEL */ 963 #endif /* PLATFORM_DriverKit */ 964 #endif /* _NETINET_IN_H_ */ 965