1 /* 2 * Copyright (c) 2000-2019 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 /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */ 29 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ 30 /* 31 * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994 32 * The Regents of the University of California. All rights reserved. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 3. All advertising materials mentioning features or use of this software 43 * must display the following acknowledgement: 44 * This product includes software developed by the University of 45 * California, Berkeley and its contributors. 46 * 4. Neither the name of the University nor the names of its contributors 47 * may be used to endorse or promote products derived from this software 48 * without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 * 62 * @(#)socket.h 8.4 (Berkeley) 2/21/94 63 * $FreeBSD: src/sys/sys/socket.h,v 1.39.2.7 2001/07/03 11:02:01 ume Exp $ 64 */ 65 /* 66 * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce 67 * support for mandatory and extensible security protections. This notice 68 * is included in support of clause 2.2 (b) of the Apple Public License, 69 * Version 2.0. 70 */ 71 72 #ifndef _SYS_SOCKET_H_ 73 #define _SYS_SOCKET_H_ 74 75 #include <sys/types.h> 76 #include <sys/cdefs.h> 77 #include <machine/_param.h> 78 #include <net/net_kev.h> 79 80 #ifdef PRIVATE 81 #include <sys/param.h> 82 #include <uuid/uuid.h> 83 #endif /* PRIVATE */ 84 85 #ifdef XNU_KERNEL_PRIVATE 86 #include <kern/assert.h> 87 #include <kern/kalloc.h> 88 #endif /* XNU_KERNEL_PRIVATE */ 89 90 #ifndef KERNEL 91 #include <Availability.h> 92 #endif 93 94 /* 95 * Definitions related to sockets: types, address families, options. 96 */ 97 98 /* 99 * Data types. 100 */ 101 102 #include <sys/_types/_gid_t.h> 103 #include <sys/_types/_off_t.h> 104 #include <sys/_types/_pid_t.h> 105 #include <sys/_types/_sa_family_t.h> 106 #include <sys/_types/_socklen_t.h> 107 108 /* XXX Not explicitly defined by POSIX, but function return types are */ 109 #include <sys/_types/_size_t.h> 110 111 /* XXX Not explicitly defined by POSIX, but function return types are */ 112 #include <sys/_types/_ssize_t.h> 113 114 /* 115 * [XSI] The iovec structure shall be defined as described in <sys/uio.h>. 116 */ 117 #include <sys/_types/_iovec_t.h> 118 119 /* 120 * Types 121 */ 122 #define SOCK_STREAM 1 /* stream socket */ 123 #define SOCK_DGRAM 2 /* datagram socket */ 124 #define SOCK_RAW 3 /* raw-protocol interface */ 125 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 126 #define SOCK_RDM 4 /* reliably-delivered message */ 127 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 128 #define SOCK_SEQPACKET 5 /* sequenced packet stream */ 129 130 /* 131 * Option flags per-socket. 132 */ 133 #define SO_DEBUG 0x0001 /* turn on debugging info recording */ 134 #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ 135 #define SO_REUSEADDR 0x0004 /* allow local address reuse */ 136 #define SO_KEEPALIVE 0x0008 /* keep connections alive */ 137 #define SO_DONTROUTE 0x0010 /* just use interface addresses */ 138 #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */ 139 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 140 #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */ 141 #define SO_LINGER 0x0080 /* linger on close if data present (in ticks) */ 142 #else 143 #define SO_LINGER 0x1080 /* linger on close if data present (in seconds) */ 144 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 145 #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */ 146 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 147 #define SO_REUSEPORT 0x0200 /* allow local address & port reuse */ 148 #define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */ 149 #define SO_TIMESTAMP_MONOTONIC 0x0800 /* Monotonically increasing timestamp on rcvd dgram */ 150 #ifndef __APPLE__ 151 #define SO_ACCEPTFILTER 0x1000 /* there is an accept filter */ 152 #else 153 #define SO_DONTTRUNC 0x2000 /* APPLE: Retain unread data */ 154 /* (ATOMIC proto) */ 155 #define SO_WANTMORE 0x4000 /* APPLE: Give hint when more data ready */ 156 #define SO_WANTOOBFLAG 0x8000 /* APPLE: Want OOB in MSG_FLAG on receive */ 157 158 #ifdef PRIVATE 159 #define SO_NOWAKEFROMSLEEP 0x10000 /* Don't wake for traffic to this socket */ 160 #define SO_NOAPNFALLBK 0x20000 /* Don't attempt APN fallback for the socket */ 161 #define SO_TIMESTAMP_CONTINUOUS 0x40000 /* Continuous monotonic timestamp on rcvd dgram */ 162 #endif 163 164 #endif /* (!__APPLE__) */ 165 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 166 167 /* 168 * Additional options, not kept in so_options. 169 */ 170 #define SO_SNDBUF 0x1001 /* send buffer size */ 171 #define SO_RCVBUF 0x1002 /* receive buffer size */ 172 #define SO_SNDLOWAT 0x1003 /* send low-water mark */ 173 #define SO_RCVLOWAT 0x1004 /* receive low-water mark */ 174 #define SO_SNDTIMEO 0x1005 /* send timeout */ 175 #define SO_RCVTIMEO 0x1006 /* receive timeout */ 176 #define SO_ERROR 0x1007 /* get error status and clear */ 177 #define SO_TYPE 0x1008 /* get socket type */ 178 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 179 #define SO_LABEL 0x1010 /* deprecated */ 180 #define SO_PEERLABEL 0x1011 /* deprecated */ 181 #ifdef __APPLE__ 182 #define SO_NREAD 0x1020 /* APPLE: get 1st-packet byte count */ 183 #define SO_NKE 0x1021 /* APPLE: Install socket-level NKE */ 184 #define SO_NOSIGPIPE 0x1022 /* APPLE: No SIGPIPE on EPIPE */ 185 #define SO_NOADDRERR 0x1023 /* APPLE: Returns EADDRNOTAVAIL when src is not available anymore */ 186 #define SO_NWRITE 0x1024 /* APPLE: Get number of bytes currently in send socket buffer */ 187 #define SO_REUSESHAREUID 0x1025 /* APPLE: Allow reuse of port/socket by different userids */ 188 #ifdef __APPLE_API_PRIVATE 189 #define SO_NOTIFYCONFLICT 0x1026 /* APPLE: send notification if there is a bind on a port which is already in use */ 190 #define SO_UPCALLCLOSEWAIT 0x1027 /* APPLE: block on close until an upcall returns */ 191 #endif 192 #define SO_LINGER_SEC 0x1080 /* linger on close if data present (in seconds) */ 193 #ifdef PRIVATE 194 #define SO_RESTRICTIONS 0x1081 /* APPLE: deny flag set */ 195 #define SO_RESTRICT_DENY_IN 0x1 /* deny inbound (trapdoor) */ 196 #define SO_RESTRICT_DENY_OUT 0x2 /* deny outbound (trapdoor) */ 197 #define SO_RESTRICT_DENY_CELLULAR 0x4 /* deny use of cellular (trapdoor) */ 198 #define SO_RESTRICT_DENY_EXPENSIVE 0x8 /* deny use of expensive if (trapdoor) */ 199 #define SO_RESTRICT_DENY_CONSTRAINED 0x10 /* deny use of expensive if (trapdoor) */ 200 #endif /* PRIVATE */ 201 #define SO_RANDOMPORT 0x1082 /* APPLE: request local port randomization */ 202 #define SO_NP_EXTENSIONS 0x1083 /* To turn off some POSIX behavior */ 203 #endif 204 205 #ifdef PRIVATE 206 #define SO_EXECPATH 0x1085 /* Application Firewall Socket option */ 207 208 /* 209 * Traffic service class definitions (lowest to highest): 210 * 211 * SO_TC_BK_SYS 212 * "Background System-Initiated", high delay tolerant, high loss 213 * tolerant, elastic flow, variable size & long-lived. E.g: system- 214 * initiated iCloud synching or Time Capsule backup, for which there 215 * is no progress feedbacks. 216 * 217 * SO_TC_BK 218 * "Background", user-initiated, high delay tolerant, high loss tolerant, 219 * elastic flow, variable size. E.g. user-initiated iCloud synching or 220 * Time Capsule backup; or traffics of background applications, for which 221 * there is some progress feedbacks. 222 * 223 * SO_TC_BE 224 * "Best Effort", unclassified/standard. This is the default service 225 * class; pretty much a mix of everything. 226 * 227 * SO_TC_RD 228 * "Responsive Data", a notch higher than "Best Effort", medium delay 229 * tolerant, elastic & inelastic flow, bursty, long-lived. E.g. email, 230 * instant messaging, for which there is a sense of interactivity and 231 * urgency (user waiting for output). 232 * 233 * SO_TC_OAM 234 * "Operations, Administration, and Management", medium delay tolerant, 235 * low-medium loss tolerant, elastic & inelastic flows, variable size. 236 * E.g. VPN tunnels. 237 * 238 * SO_TC_AV 239 * "Multimedia Audio/Video Streaming", medium delay tolerant, low-medium 240 * loss tolerant, elastic flow, constant packet interval, variable rate & 241 * size. E.g. AirPlay playback (both video and audio). 242 * 243 * SO_TC_RV 244 * "Responsive Multimedia Audio/Video", low delay tolerant, low-medium 245 * loss tolerant, elastic flow, variable packet interval, rate and size. 246 * E.g. AirPlay mirroring, screen sharing. 247 * 248 * SO_TC_VI 249 * "Interactive Video", low delay tolerant, low-medium loss tolerant, 250 * elastic flow, constant packet interval, variable rate & size. E.g. 251 * FaceTime video. 252 * 253 * SO_TC_VO 254 * "Interactive Voice", low delay tolerant, low loss tolerant, inelastic 255 * flow, constant packet rate, somewhat fixed size. E.g. VoIP including 256 * FaceTime audio. 257 * 258 * SO_TC_CTL 259 * "Network Control", low delay tolerant, low loss tolerant, inelastic 260 * flow, rate is bursty but short, variable size. E.g. DNS queries; 261 * certain types of locally-originated ICMP, ICMPv6; IGMP/MLD join/leave, 262 * ARP. 263 */ 264 #define SO_TRAFFIC_CLASS 0x1086 /* Traffic service class (int) */ 265 #define SO_TC_BK_SYS 100 /* lowest class */ 266 #define SO_TC_BK 200 267 #define SO_TC_BE 0 268 #define SO_TC_RD 300 269 #define SO_TC_OAM 400 270 #define SO_TC_AV 500 271 #define SO_TC_RV 600 272 #define SO_TC_VI 700 273 #define SO_TC_VO 800 274 #define SO_TC_CTL 900 /* highest class */ 275 #define SO_TC_MAX 10 /* Total # of traffic classes */ 276 #ifdef XNU_KERNEL_PRIVATE 277 #define _SO_TC_BK 1 /* deprecated */ 278 #define _SO_TC_VI 2 /* deprecated */ 279 #define _SO_TC_VO 3 /* deprecated */ 280 #define _SO_TC_MAX 4 /* deprecated */ 281 282 #define SO_VALID_TC(c) \ 283 (c == SO_TC_BK_SYS || c == SO_TC_BK || c == SO_TC_BE || \ 284 c == SO_TC_RD || c == SO_TC_OAM || c == SO_TC_AV || \ 285 c == SO_TC_RV || c == SO_TC_VI || c == SO_TC_VO || \ 286 c == SO_TC_CTL || c == SO_TC_NETSVC_SIG) 287 288 #define SO_TC_UNSPEC ((int)-1) /* Traffic class not specified */ 289 290 #define SO_TC_SIG SO_TC_VI /* to be removed XXX */ 291 292 #define SOTCIX_BK_SYS 0 293 #define SOTCIX_BK 1 294 #define SOTCIX_BE 2 295 #define SOTCIX_RD 3 296 #define SOTCIX_OAM 4 297 #define SOTCIX_AV 5 298 #define SOTCIX_RV 6 299 #define SOTCIX_VI 7 300 #define SOTCIX_VO 8 301 #define SOTCIX_CTL 9 302 #endif /* XNU_KERNEL_PRIVATE */ 303 304 /* Background socket configuration flags */ 305 #define TRAFFIC_MGT_SO_BACKGROUND 0x0001 /* background socket */ 306 #define TRAFFIC_MGT_TCP_RECVBG 0x0002 /* Only TCP sockets, receiver throttling */ 307 308 #define SO_RECV_TRAFFIC_CLASS 0x1087 /* Receive traffic class (bool) */ 309 #define SO_TRAFFIC_CLASS_DBG 0x1088 /* Debug traffic class (struct so_tcdbg) */ 310 #define SO_OPTION_UNUSED_0 0x1089 /* Traffic class statistics */ 311 #define SO_PRIVILEGED_TRAFFIC_CLASS 0x1090 /* Privileged traffic class (bool) */ 312 #define SO_DEFUNCTIT 0x1091 /* Defunct a socket (only in internal builds) */ 313 #define SO_DEFUNCTOK 0x1100 /* can be defunct'd */ 314 #define SO_ISDEFUNCT 0x1101 /* get defunct status */ 315 316 #define SO_OPPORTUNISTIC 0x1102 /* deprecated; use SO_TRAFFIC_CLASS */ 317 318 /* 319 * SO_FLUSH flushes any unsent data generated by a given socket. It takes 320 * an integer parameter, which can be any of the SO_TC traffic class values, 321 * or the special SO_TC_ALL value. 322 */ 323 #define SO_FLUSH 0x1103 /* flush unsent data (int) */ 324 #define SO_TC_ALL (-1) 325 326 #define SO_RECV_ANYIF 0x1104 /* unrestricted inbound processing */ 327 #define SO_TRAFFIC_MGT_BACKGROUND 0x1105 /* Background traffic management */ 328 329 #define SO_FLOW_DIVERT_TOKEN 0x1106 /* flow divert token */ 330 331 #define SO_DELEGATED 0x1107 /* set socket as delegate (pid_t) */ 332 #define SO_DELEGATED_UUID 0x1108 /* set socket as delegate (uuid_t) */ 333 #define SO_NECP_ATTRIBUTES 0x1109 /* NECP socket attributes (domain, account, etc.) */ 334 #define SO_CFIL_SOCK_ID 0x1110 /* get content filter socket ID (cfil_sock_id_t) */ 335 #define SO_NECP_CLIENTUUID 0x1111 /* NECP Client uuid */ 336 #endif /* PRIVATE */ 337 #define SO_NUMRCVPKT 0x1112 /* number of datagrams in receive socket buffer */ 338 #ifdef PRIVATE 339 #define SO_AWDL_UNRESTRICTED 0x1113 /* try to use AWDL in restricted mode */ 340 #define SO_EXTENDED_BK_IDLE 0x1114 /* extended time to keep socket idle after app is suspended (int) */ 341 #define SO_MARK_CELLFALLBACK 0x1115 /* Mark as initiated by cell fallback */ 342 #endif /* PRIVATE */ 343 #define SO_NET_SERVICE_TYPE 0x1116 /* Network service type */ 344 345 #ifdef PRIVATE 346 #define SO_QOSMARKING_POLICY_OVERRIDE 0x1117 /* int */ 347 #define SO_INTCOPROC_ALLOW 0x1118 /* Try to use internal co-processor interfaces. */ 348 #endif /* PRIVATE */ 349 350 #define SO_NETSVC_MARKING_LEVEL 0x1119 /* Get QoS marking in effect for socket */ 351 352 #ifdef PRIVATE 353 #define SO_NECP_LISTENUUID 0x1120 /* NECP client UUID for listener */ 354 #define SO_MPKL_SEND_INFO 0x1122 /* (struct so_mpkl_send_info) */ 355 #define SO_STATISTICS_EVENT 0x1123 /* int64 argument, an event in statistics collection */ 356 #define SO_WANT_KEV_SOCKET_CLOSED 0x1124 /* want delivery of KEV_SOCKET_CLOSED (int) */ 357 #define SO_MARK_KNOWN_TRACKER 0x1125 /* Mark as a connection to a known tracker */ 358 #define SO_MARK_KNOWN_TRACKER_NON_APP_INITIATED 0x1126 /* Mark tracker connection to be non-app initiated */ 359 #define SO_MARK_WAKE_PKT 0x1127 /* Mark next packet as a wake packet, one shot (int) */ 360 #define SO_RECV_WAKE_PKT 0x1128 /* Receive wake packet indication as ancillary data (int) */ 361 #define SO_MARK_APPROVED_APP_DOMAIN 0x1129 /* Mark connection as being for an approved associated app domain */ 362 #define SO_FALLBACK_MODE 0x1130 /* Indicates the mode of fallback used */ 363 #endif /* PRIVATE */ 364 365 /* When adding new socket-options, you need to make sure MPTCP supports these as well! */ 366 367 /* 368 * Network Service Type for option SO_NET_SERVICE_TYPE 369 * 370 * The vast majority of sockets should use Best Effort that is the default 371 * Network Service Type. Other Network Service Types have to be used only if 372 * the traffic actually matches the description of the Network Service Type. 373 * 374 * Network Service Types do not represent priorities but rather describe 375 * different categories of delay, jitter and loss parameters. 376 * Those parameters may influence protocols from layer 4 protocols like TCP 377 * to layer 2 protocols like Wi-Fi. The Network Service Type can determine 378 * how the traffic is queued and scheduled by the host networking stack and 379 * by other entities on the network like switches and routers. For example 380 * for Wi-Fi, the Network Service Type can select the marking of the 381 * layer 2 packet with the appropriate WMM Access Category. 382 * 383 * There is no point in attempting to game the system and use 384 * a Network Service Type that does not correspond to the actual 385 * traffic characteristic but one that seems to have a higher precedence. 386 * The reason is that for service classes that have lower tolerance 387 * for delay and jitter, the queues size is lower than for service 388 * classes that are more tolerant to delay and jitter. 389 * 390 * For example using a voice service type for bulk data transfer will lead 391 * to disastrous results as soon as congestion happens because the voice 392 * queue overflows and packets get dropped. This is not only bad for the bulk 393 * data transfer but it is also bad for VoIP apps that legitimately are using 394 * the voice service type. 395 * 396 * The characteristics of the Network Service Types are based on the service 397 * classes defined in RFC 4594 "Configuration Guidelines for DiffServ Service 398 * Classes" 399 * 400 * When system detects the outgoing interface belongs to a DiffServ domain 401 * that follows the recommendation of the IETF draft "Guidelines for DiffServ to 402 * IEEE 802.11 Mapping", the packet will marked at layer 3 with a DSCP value 403 * that corresponds to Network Service Type. 404 * 405 * NET_SERVICE_TYPE_BE 406 * "Best Effort", unclassified/standard. This is the default service 407 * class and cover the majority of the traffic. 408 * 409 * NET_SERVICE_TYPE_BK 410 * "Background", high delay tolerant, loss tolerant. elastic flow, 411 * variable size & long-lived. E.g: non-interactive network bulk transfer 412 * like synching or backup. 413 * 414 * NET_SERVICE_TYPE_RD 415 * "Responsive Data", a notch higher than "Best Effort", medium delay 416 * tolerant, elastic & inelastic flow, bursty, long-lived. E.g. email, 417 * instant messaging, for which there is a sense of interactivity and 418 * urgency (user waiting for output). 419 * 420 * NET_SERVICE_TYPE_OAM 421 * "Operations, Administration, and Management", medium delay tolerant, 422 * low-medium loss tolerant, elastic & inelastic flows, variable size. 423 * E.g. VPN tunnels. 424 * 425 * NET_SERVICE_TYPE_AV 426 * "Multimedia Audio/Video Streaming", medium delay tolerant, low-medium 427 * loss tolerant, elastic flow, constant packet interval, variable rate 428 * and size. E.g. video and audio playback with buffering. 429 * 430 * NET_SERVICE_TYPE_RV 431 * "Responsive Multimedia Audio/Video", low delay tolerant, low-medium 432 * loss tolerant, elastic flow, variable packet interval, rate and size. 433 * E.g. screen sharing. 434 * 435 * NET_SERVICE_TYPE_VI 436 * "Interactive Video", low delay tolerant, low-medium loss tolerant, 437 * elastic flow, constant packet interval, variable rate & size. E.g. 438 * video telephony. 439 * 440 * NET_SERVICE_TYPE_SIG 441 * "Signaling", low delay tolerant, low loss tolerant, inelastic flow, 442 * jitter tolerant, rate is bursty but short, variable size. E.g. SIP. 443 * 444 * NET_SERVICE_TYPE_VO 445 * "Interactive Voice", very low delay tolerant, very low loss tolerant, 446 * inelastic flow, constant packet rate, somewhat fixed size. 447 * E.g. VoIP. 448 */ 449 450 #define NET_SERVICE_TYPE_BE 0 /* Best effort */ 451 #define NET_SERVICE_TYPE_BK 1 /* Background system initiated */ 452 #define NET_SERVICE_TYPE_SIG 2 /* Signaling */ 453 #define NET_SERVICE_TYPE_VI 3 /* Interactive Video */ 454 #define NET_SERVICE_TYPE_VO 4 /* Interactive Voice */ 455 #define NET_SERVICE_TYPE_RV 5 /* Responsive Multimedia Audio/Video */ 456 #define NET_SERVICE_TYPE_AV 6 /* Multimedia Audio/Video Streaming */ 457 #define NET_SERVICE_TYPE_OAM 7 /* Operations, Administration, and Management */ 458 #define NET_SERVICE_TYPE_RD 8 /* Responsive Data */ 459 460 #if PRIVATE 461 #define _NET_SERVICE_TYPE_COUNT 9 462 #define _NET_SERVICE_TYPE_UNSPEC ((int)-1) 463 464 #define IS_VALID_NET_SERVICE_TYPE(c) \ 465 (c >= NET_SERVICE_TYPE_BE && c <= NET_SERVICE_TYPE_RD) 466 467 extern const int sotc_by_netservicetype[_NET_SERVICE_TYPE_COUNT]; 468 469 /* 470 * Facility to pass Network Service Type values using SO_TRAFFIC_CLASS 471 * Mostly useful to simplify implementation of frameworks to adopt the new 472 * Network Service Type values for Signaling. 473 */ 474 #define SO_TC_NET_SERVICE_OFFSET 10000 475 #define SO_TC_NETSVC_SIG (SO_TC_NET_SERVICE_OFFSET + NET_SERVICE_TYPE_SIG) 476 #endif /* PRIVATE */ 477 478 /* These are supported values for SO_NETSVC_MARKING_LEVEL */ 479 #define NETSVC_MRKNG_UNKNOWN 0 /* The outgoing network interface is not known */ 480 #define NETSVC_MRKNG_LVL_L2 1 /* Default marking at layer 2 (for example Wi-Fi WMM) */ 481 #define NETSVC_MRKNG_LVL_L3L2_ALL 2 /* Layer 3 DSCP marking and layer 2 marking for all Network Service Types */ 482 #define NETSVC_MRKNG_LVL_L3L2_BK 3 /* The system policy limits layer 3 DSCP marking and layer 2 marking 483 * to background Network Service Types */ 484 485 486 typedef __uint32_t sae_associd_t; 487 #define SAE_ASSOCID_ANY 0 488 #define SAE_ASSOCID_ALL ((sae_associd_t)(-1ULL)) 489 490 typedef __uint32_t sae_connid_t; 491 #define SAE_CONNID_ANY 0 492 #define SAE_CONNID_ALL ((sae_connid_t)(-1ULL)) 493 494 /* connectx() flag parameters */ 495 #define CONNECT_RESUME_ON_READ_WRITE 0x1 /* resume connect() on read/write */ 496 #define CONNECT_DATA_IDEMPOTENT 0x2 /* data is idempotent */ 497 #define CONNECT_DATA_AUTHENTICATED 0x4 /* data includes security that replaces the TFO-cookie */ 498 499 /* sockaddr endpoints */ 500 typedef struct sa_endpoints { 501 unsigned int sae_srcif; /* optional source interface */ 502 const struct sockaddr *sae_srcaddr; /* optional source address */ 503 socklen_t sae_srcaddrlen; /* size of source address */ 504 const struct sockaddr *sae_dstaddr; /* destination address */ 505 socklen_t sae_dstaddrlen; /* size of destination address */ 506 } sa_endpoints_t; 507 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 508 509 /* 510 * Structure used for manipulating linger option. 511 */ 512 struct linger { 513 int l_onoff; /* option on/off */ 514 int l_linger; /* linger time */ 515 }; 516 517 #ifndef __APPLE__ 518 struct accept_filter_arg { 519 char af_name[16]; 520 char af_arg[256 - 16]; 521 }; 522 #endif 523 524 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 525 #ifdef __APPLE__ 526 527 /* 528 * Structure to control non-portable Sockets extension to POSIX 529 */ 530 struct so_np_extensions { 531 u_int32_t npx_flags; 532 u_int32_t npx_mask; 533 }; 534 535 #define SONPX_SETOPTSHUT 0x000000001 /* flag for allowing setsockopt after shutdown */ 536 537 538 #ifdef KERNEL_PRIVATE 539 #define SONPX_MASK_VALID (SONPX_SETOPTSHUT) 540 #define IS_SO_TC_BACKGROUND(_tc_) ((_tc_) == SO_TC_BK || (_tc_) == SO_TC_BK_SYS) 541 #define IS_SO_TC_BACKGROUNDSYSTEM(_tc_) ((_tc_) == SO_TC_BK_SYS) 542 #endif /* KERNEL_PRIVATE */ 543 544 #endif 545 #endif 546 547 /* 548 * Level number for (get/set)sockopt() to apply to socket itself. 549 */ 550 #define SOL_SOCKET 0xffff /* options for socket level */ 551 552 553 /* 554 * Address families. 555 */ 556 #define AF_UNSPEC 0 /* unspecified */ 557 #define AF_UNIX 1 /* local to host (pipes) */ 558 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 559 #define AF_LOCAL AF_UNIX /* backward compatibility */ 560 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 561 #define AF_INET 2 /* internetwork: UDP, TCP, etc. */ 562 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 563 #define AF_IMPLINK 3 /* arpanet imp addresses */ 564 #define AF_PUP 4 /* pup protocols: e.g. BSP */ 565 #define AF_CHAOS 5 /* mit CHAOS protocols */ 566 #define AF_NS 6 /* XEROX NS protocols */ 567 #define AF_ISO 7 /* ISO protocols */ 568 #define AF_OSI AF_ISO 569 #define AF_ECMA 8 /* European computer manufacturers */ 570 #define AF_DATAKIT 9 /* datakit protocols */ 571 #define AF_CCITT 10 /* CCITT protocols, X.25 etc */ 572 #define AF_SNA 11 /* IBM SNA */ 573 #define AF_DECnet 12 /* DECnet */ 574 #define AF_DLI 13 /* DEC Direct data link interface */ 575 #define AF_LAT 14 /* LAT */ 576 #define AF_HYLINK 15 /* NSC Hyperchannel */ 577 #define AF_APPLETALK 16 /* Apple Talk */ 578 #define AF_ROUTE 17 /* Internal Routing Protocol */ 579 #define AF_LINK 18 /* Link layer interface */ 580 #define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */ 581 #define AF_COIP 20 /* connection-oriented IP, aka ST II */ 582 #define AF_CNT 21 /* Computer Network Technology */ 583 #define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */ 584 #define AF_IPX 23 /* Novell Internet Protocol */ 585 #define AF_SIP 24 /* Simple Internet Protocol */ 586 #define pseudo_AF_PIP 25 /* Help Identify PIP packets */ 587 #define AF_NDRV 27 /* Network Driver 'raw' access */ 588 #define AF_ISDN 28 /* Integrated Services Digital Network */ 589 #define AF_E164 AF_ISDN /* CCITT E.164 recommendation */ 590 #define pseudo_AF_KEY 29 /* Internal key-management function */ 591 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 592 #define AF_INET6 30 /* IPv6 */ 593 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 594 #define AF_NATM 31 /* native ATM access */ 595 #define AF_SYSTEM 32 /* Kernel event messages */ 596 #define AF_NETBIOS 33 /* NetBIOS */ 597 #define AF_PPP 34 /* PPP communication protocol */ 598 #define pseudo_AF_HDRCMPLT 35 /* Used by BPF to not rewrite headers 599 * in interface output routine */ 600 #ifdef PRIVATE 601 #define AF_AFP 36 /* Used by AFP */ 602 #else 603 #define AF_RESERVED_36 36 /* Reserved for internal usage */ 604 #endif 605 #define AF_IEEE80211 37 /* IEEE 802.11 protocol */ 606 #define AF_UTUN 38 607 #ifdef PRIVATE 608 #define AF_MULTIPATH 39 609 #endif /* PRIVATE */ 610 #define AF_VSOCK 40 /* VM Sockets */ 611 #define AF_MAX 41 612 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 613 614 /* 615 * [XSI] Structure used by kernel to store most addresses. 616 */ 617 struct sockaddr { 618 __uint8_t sa_len; /* total length */ 619 sa_family_t sa_family; /* [XSI] address family */ 620 char sa_data[14]; /* [XSI] addr value (actually larger) */ 621 }; 622 623 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 624 #define SOCK_MAXADDRLEN 255 /* longest possible addresses */ 625 626 /* 627 * Structure used by kernel to pass protocol 628 * information in raw sockets. 629 */ 630 struct sockproto { 631 __uint16_t sp_family; /* address family */ 632 __uint16_t sp_protocol; /* protocol */ 633 }; 634 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 635 636 /* 637 * RFC 2553: protocol-independent placeholder for socket addresses 638 */ 639 #define _SS_MAXSIZE 128 640 #define _SS_ALIGNSIZE (sizeof(__int64_t)) 641 #define _SS_PAD1SIZE \ 642 (_SS_ALIGNSIZE - sizeof(__uint8_t) - sizeof(sa_family_t)) 643 #define _SS_PAD2SIZE \ 644 (_SS_MAXSIZE - sizeof(__uint8_t) - sizeof(sa_family_t) - \ 645 _SS_PAD1SIZE - _SS_ALIGNSIZE) 646 647 /* 648 * [XSI] sockaddr_storage 649 */ 650 struct sockaddr_storage { 651 __uint8_t ss_len; /* address length */ 652 sa_family_t ss_family; /* [XSI] address family */ 653 char __ss_pad1[_SS_PAD1SIZE]; 654 __int64_t __ss_align; /* force structure storage alignment */ 655 char __ss_pad2[_SS_PAD2SIZE]; 656 }; 657 658 /* 659 * Protocol families, same as address families for now. 660 */ 661 #define PF_UNSPEC AF_UNSPEC 662 #define PF_LOCAL AF_LOCAL 663 #define PF_UNIX PF_LOCAL /* backward compatibility */ 664 #define PF_INET AF_INET 665 #define PF_IMPLINK AF_IMPLINK 666 #define PF_PUP AF_PUP 667 #define PF_CHAOS AF_CHAOS 668 #define PF_NS AF_NS 669 #define PF_ISO AF_ISO 670 #define PF_OSI AF_ISO 671 #define PF_ECMA AF_ECMA 672 #define PF_DATAKIT AF_DATAKIT 673 #define PF_CCITT AF_CCITT 674 #define PF_SNA AF_SNA 675 #define PF_DECnet AF_DECnet 676 #define PF_DLI AF_DLI 677 #define PF_LAT AF_LAT 678 #define PF_HYLINK AF_HYLINK 679 #define PF_APPLETALK AF_APPLETALK 680 #define PF_ROUTE AF_ROUTE 681 #define PF_LINK AF_LINK 682 #define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */ 683 #define PF_COIP AF_COIP 684 #define PF_CNT AF_CNT 685 #define PF_SIP AF_SIP 686 #define PF_IPX AF_IPX /* same format as AF_NS */ 687 #define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */ 688 #define PF_PIP pseudo_AF_PIP 689 #define PF_NDRV AF_NDRV 690 #define PF_ISDN AF_ISDN 691 #define PF_KEY pseudo_AF_KEY 692 #define PF_INET6 AF_INET6 693 #define PF_NATM AF_NATM 694 #define PF_SYSTEM AF_SYSTEM 695 #define PF_NETBIOS AF_NETBIOS 696 #define PF_PPP AF_PPP 697 #ifdef PRIVATE 698 #define PF_AFP AF_AFP 699 #else 700 #define PF_RESERVED_36 AF_RESERVED_36 701 #endif 702 #define PF_UTUN AF_UTUN 703 #ifdef PRIVATE 704 #define PF_MULTIPATH AF_MULTIPATH 705 #endif /* PRIVATE */ 706 #define PF_VSOCK AF_VSOCK 707 #define PF_MAX AF_MAX 708 709 /* 710 * These do not have socket-layer support: 711 */ 712 #define PF_VLAN ((uint32_t)0x766c616e) /* 'vlan' */ 713 #define PF_BOND ((uint32_t)0x626f6e64) /* 'bond' */ 714 #ifdef KERNEL_PRIVATE 715 #define PF_BRIDGE ((uint32_t)0x62726467) /* 'brdg' */ 716 #define PF_802154 ((uint32_t)0x38313534) /* '8154' */ 717 #endif /* KERNEL_PRIVATE */ 718 719 /* 720 * Definitions for network related sysctl, CTL_NET. 721 * 722 * Second level is protocol family. 723 * Third level is protocol number. 724 * 725 * Further levels are defined by the individual families below. 726 */ 727 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 728 #define NET_MAXID AF_MAX 729 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 730 731 #ifdef KERNEL_PRIVATE 732 #define CTL_NET_NAMES { \ 733 { 0, 0 }, \ 734 { "local", CTLTYPE_NODE }, \ 735 { "inet", CTLTYPE_NODE }, \ 736 { "implink", CTLTYPE_NODE }, \ 737 { "pup", CTLTYPE_NODE }, \ 738 { "chaos", CTLTYPE_NODE }, \ 739 { "xerox_ns", CTLTYPE_NODE }, \ 740 { "iso", CTLTYPE_NODE }, \ 741 { "emca", CTLTYPE_NODE }, \ 742 { "datakit", CTLTYPE_NODE }, \ 743 { "ccitt", CTLTYPE_NODE }, \ 744 { "ibm_sna", CTLTYPE_NODE }, \ 745 { "decnet", CTLTYPE_NODE }, \ 746 { "dec_dli", CTLTYPE_NODE }, \ 747 { "lat", CTLTYPE_NODE }, \ 748 { "hylink", CTLTYPE_NODE }, \ 749 { "appletalk", CTLTYPE_NODE }, \ 750 { "route", CTLTYPE_NODE }, \ 751 { "link_layer", CTLTYPE_NODE }, \ 752 { "xtp", CTLTYPE_NODE }, \ 753 { "coip", CTLTYPE_NODE }, \ 754 { "cnt", CTLTYPE_NODE }, \ 755 { "rtip", CTLTYPE_NODE }, \ 756 { "ipx", CTLTYPE_NODE }, \ 757 { "sip", CTLTYPE_NODE }, \ 758 { "pip", CTLTYPE_NODE }, \ 759 { 0, 0 }, \ 760 { "ndrv", CTLTYPE_NODE }, \ 761 { "isdn", CTLTYPE_NODE }, \ 762 { "key", CTLTYPE_NODE }, \ 763 { "inet6", CTLTYPE_NODE }, \ 764 { "natm", CTLTYPE_NODE }, \ 765 { "sys", CTLTYPE_NODE }, \ 766 { "netbios", CTLTYPE_NODE }, \ 767 { "ppp", CTLTYPE_NODE }, \ 768 { "hdrcomplete", CTLTYPE_NODE }, \ 769 { "vsock", CTLTYPE_NODE }, \ 770 } 771 #endif /* KERNEL_PRIVATE */ 772 773 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 774 /* 775 * PF_ROUTE - Routing table 776 * 777 * Three additional levels are defined: 778 * Fourth: address family, 0 is wildcard 779 * Fifth: type of info, defined below 780 * Sixth: flag(s) to mask with for NET_RT_FLAGS 781 */ 782 #define NET_RT_DUMP 1 /* dump; may limit to a.f. */ 783 #define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */ 784 #define NET_RT_IFLIST 3 /* survey interface list */ 785 #define NET_RT_STAT 4 /* routing statistics */ 786 #define NET_RT_TRASH 5 /* routes not in table but not freed */ 787 #define NET_RT_IFLIST2 6 /* interface list with addresses */ 788 #define NET_RT_DUMP2 7 /* dump; may limit to a.f. */ 789 #ifdef PRIVATE 790 #define NET_RT_DUMPX 8 /* private */ 791 #define NET_RT_DUMPX_FLAGS 9 /* private */ 792 #endif /* PRIVATE */ 793 /* 794 * Allows read access non-local host's MAC address 795 * if the process has neighbor cache entitlement. 796 */ 797 #define NET_RT_FLAGS_PRIV 10 798 #define NET_RT_MAXID 11 799 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 800 801 #ifdef PRIVATE 802 /* These are supported values for SO_STATISTICS_EVENT */ 803 #define SO_STATISTICS_EVENT_ENTER_CELLFALLBACK (1 << 0) 804 #define SO_STATISTICS_EVENT_EXIT_CELLFALLBACK (1 << 1) 805 #define SO_STATISTICS_EVENT_RESERVED_1 (1 << 2) 806 #define SO_STATISTICS_EVENT_RESERVED_2 (1 << 3) 807 #endif /* PRIVATE */ 808 809 810 #ifdef KERNEL_PRIVATE 811 #define CTL_NET_RT_NAMES { \ 812 { 0, 0 }, \ 813 { "dump", CTLTYPE_STRUCT }, \ 814 { "flags", CTLTYPE_STRUCT }, \ 815 { "iflist", CTLTYPE_STRUCT }, \ 816 { "stat", CTLTYPE_STRUCT }, \ 817 { "trash", CTLTYPE_INT }, \ 818 { "iflist2", CTLTYPE_STRUCT }, \ 819 { "dump2", CTLTYPE_STRUCT }, \ 820 { "dumpx", CTLTYPE_STRUCT }, \ 821 { "dumpx_flags", CTLTYPE_STRUCT }, \ 822 } 823 824 #endif /* KERNEL_PRIVATE */ 825 826 /* 827 * Maximum queue length specifiable by listen. 828 */ 829 #define SOMAXCONN 128 830 831 /* 832 * [XSI] Message header for recvmsg and sendmsg calls. 833 * Used value-result for recvmsg, value only for sendmsg. 834 */ 835 struct msghdr { 836 void *msg_name; /* [XSI] optional address */ 837 socklen_t msg_namelen; /* [XSI] size of address */ 838 struct iovec *msg_iov; /* [XSI] scatter/gather array */ 839 int msg_iovlen; /* [XSI] # elements in msg_iov */ 840 void *msg_control; /* [XSI] ancillary data, see below */ 841 socklen_t msg_controllen; /* [XSI] ancillary data buffer len */ 842 int msg_flags; /* [XSI] flags on received message */ 843 }; 844 845 #ifdef PRIVATE 846 /* 847 * Extended version for sendmsg_x() and recvmsg_x() calls 848 * 849 * For recvmsg_x(), the size of the data received is given by the field 850 * msg_datalen. 851 * 852 * For sendmsg_x(), the size of the data to send is given by the length of 853 * the iovec array -- like sendmsg(). The field msg_datalen is ignored. 854 */ 855 struct msghdr_x { 856 void *msg_name; /* optional address */ 857 socklen_t msg_namelen; /* size of address */ 858 struct iovec *msg_iov; /* scatter/gather array */ 859 int msg_iovlen; /* # elements in msg_iov */ 860 void *msg_control; /* ancillary data, see below */ 861 socklen_t msg_controllen; /* ancillary data buffer len */ 862 int msg_flags; /* flags on received message */ 863 size_t msg_datalen; /* byte length of buffer in msg_iov */ 864 }; 865 #endif /* PRIVATE */ 866 867 #ifdef XNU_KERNEL_PRIVATE 868 /* 869 * In-kernel representation of "struct msghdr" from 870 * userspace. Has enough precision for 32-bit or 871 * 64-bit clients, but does not need to be packed. 872 */ 873 874 struct user_msghdr { 875 user_addr_t msg_name; /* optional address */ 876 socklen_t msg_namelen; /* size of address */ 877 user_addr_t msg_iov; /* scatter/gather array */ 878 int msg_iovlen; /* # elements in msg_iov */ 879 user_addr_t msg_control; /* ancillary data, see below */ 880 socklen_t msg_controllen; /* ancillary data buffer len */ 881 int msg_flags; /* flags on received message */ 882 }; 883 884 /* 885 * LP64 user version of struct msghdr. 886 * WARNING - keep in sync with struct msghdr 887 */ 888 889 struct user64_msghdr { 890 user64_addr_t msg_name; /* optional address */ 891 socklen_t msg_namelen; /* size of address */ 892 user64_addr_t msg_iov; /* scatter/gather array */ 893 int msg_iovlen; /* # elements in msg_iov */ 894 user64_addr_t msg_control; /* ancillary data, see below */ 895 socklen_t msg_controllen; /* ancillary data buffer len */ 896 int msg_flags; /* flags on received message */ 897 }; 898 899 /* 900 * ILP32 user version of struct msghdr. 901 * WARNING - keep in sync with struct msghdr 902 */ 903 904 struct user32_msghdr { 905 user32_addr_t msg_name; /* optional address */ 906 socklen_t msg_namelen; /* size of address */ 907 user32_addr_t msg_iov; /* scatter/gather array */ 908 int msg_iovlen; /* # elements in msg_iov */ 909 user32_addr_t msg_control; /* ancillary data, see below */ 910 socklen_t msg_controllen; /* ancillary data buffer len */ 911 int msg_flags; /* flags on received message */ 912 }; 913 914 /* 915 * In-kernel representation of "struct msghdr_x" from 916 * userspace. Has enough precision for 32-bit or 917 * 64-bit clients, but does not need to be packed. 918 */ 919 920 struct user_msghdr_x { 921 user_addr_t msg_name; /* optional address */ 922 socklen_t msg_namelen; /* size of address */ 923 user_addr_t msg_iov; /* scatter/gather array */ 924 int msg_iovlen; /* # elements in msg_iov */ 925 user_addr_t msg_control; /* ancillary data, see below */ 926 socklen_t msg_controllen; /* ancillary data buffer len */ 927 int msg_flags; /* flags on received message */ 928 size_t msg_datalen; /* byte length of buffer in msg_iov */ 929 }; 930 931 /* 932 * LP64 user version of struct msghdr_x 933 * WARNING - keep in sync with struct msghdr_x 934 */ 935 936 struct user64_msghdr_x { 937 user64_addr_t msg_name; /* optional address */ 938 socklen_t msg_namelen; /* size of address */ 939 user64_addr_t msg_iov; /* scatter/gather array */ 940 int msg_iovlen; /* # elements in msg_iov */ 941 user64_addr_t msg_control; /* ancillary data, see below */ 942 socklen_t msg_controllen; /* ancillary data buffer len */ 943 int msg_flags; /* flags on received message */ 944 user64_size_t msg_datalen; /* byte length of buffer in msg_iov */ 945 }; 946 947 /* 948 * ILP32 user version of struct msghdr_x 949 * WARNING - keep in sync with struct msghdr_x 950 */ 951 952 struct user32_msghdr_x { 953 user32_addr_t msg_name; /* optional address */ 954 socklen_t msg_namelen; /* size of address */ 955 user32_addr_t msg_iov; /* scatter/gather array */ 956 int msg_iovlen; /* # elements in msg_iov */ 957 user32_addr_t msg_control; /* ancillary data, see below */ 958 socklen_t msg_controllen; /* ancillary data buffer len */ 959 int msg_flags; /* flags on received message */ 960 user32_size_t msg_datalen; /* byte length of buffer in msg_iov */ 961 }; 962 963 /* 964 * In-kernel representation of "struct sa_endpoints" from 965 * userspace. Has enough precision for 32-bit or 966 * 64-bit clients, but does not need to be packed. 967 */ 968 969 struct user_sa_endpoints { 970 unsigned int sae_srcif; /* optional source interface */ 971 user_addr_t sae_srcaddr; /* optional source address */ 972 socklen_t sae_srcaddrlen; /* size of source address */ 973 user_addr_t sae_dstaddr; /* destination address */ 974 socklen_t sae_dstaddrlen; /* size of destination address */ 975 }; 976 977 /* 978 * LP64 user version of struct sa_endpoints 979 * WARNING - keep in sync with struct sa_endpoints 980 */ 981 982 struct user64_sa_endpoints { 983 unsigned int sae_srcif; /* optional source interface */ 984 user64_addr_t sae_srcaddr; /* optional source address */ 985 socklen_t sae_srcaddrlen; /* size of source address */ 986 user64_addr_t sae_dstaddr; /* destination address */ 987 socklen_t sae_dstaddrlen; /* size of destination address */ 988 }; 989 990 /* 991 * ILP32 user version of struct sa_endpoints 992 * WARNING - keep in sync with struct sa_endpoints 993 */ 994 995 struct user32_sa_endpoints { 996 unsigned int sae_srcif; /* optional source interface */ 997 user32_addr_t sae_srcaddr; /* optional source address */ 998 socklen_t sae_srcaddrlen; /* size of source address */ 999 user32_addr_t sae_dstaddr; /* destination address */ 1000 socklen_t sae_dstaddrlen; /* size of destination address */ 1001 }; 1002 1003 #endif /* XNU_KERNEL_PRIVATE */ 1004 1005 #define MSG_OOB 0x1 /* process out-of-band data */ 1006 #define MSG_PEEK 0x2 /* peek at incoming message */ 1007 #define MSG_DONTROUTE 0x4 /* send without using routing tables */ 1008 #define MSG_EOR 0x8 /* data completes record */ 1009 #define MSG_TRUNC 0x10 /* data discarded before delivery */ 1010 #define MSG_CTRUNC 0x20 /* control data lost before delivery */ 1011 #define MSG_WAITALL 0x40 /* wait for full request or error */ 1012 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1013 #define MSG_DONTWAIT 0x80 /* this message should be nonblocking */ 1014 #define MSG_EOF 0x100 /* data completes connection */ 1015 #ifdef __APPLE__ 1016 #ifndef PRIVATE 1017 #ifdef __APPLE_API_OBSOLETE 1018 #define MSG_WAITSTREAM 0x200 /* wait up to full request.. may return partial */ 1019 #endif 1020 #else 1021 #define MSG_WAITSTREAM 0x200 /* wait up to full request.. may return partial */ 1022 #endif 1023 #define MSG_FLUSH 0x400 /* Start of 'hold' seq; dump so_temp, deprecated */ 1024 #define MSG_HOLD 0x800 /* Hold frag in so_temp, deprecated */ 1025 #define MSG_SEND 0x1000 /* Send the packet in so_temp, deprecated */ 1026 #define MSG_HAVEMORE 0x2000 /* Data ready to be read */ 1027 #define MSG_RCVMORE 0x4000 /* Data remains in current pkt */ 1028 #endif 1029 #ifdef KERNEL_PRIVATE 1030 #define MSG_COMPAT 0x8000 /* deprecated */ 1031 #endif /* KERNEL_PRIVATE */ 1032 #define MSG_NEEDSA 0x10000 /* Fail receive if socket address cannot be allocated */ 1033 #ifdef KERNEL_PRIVATE 1034 #define MSG_NBIO 0x20000 /* FIONBIO mode, used by fifofs */ 1035 #define MSG_SKIPCFIL 0x40000 /* skip pass content filter */ 1036 #endif 1037 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1038 1039 #if __DARWIN_C_LEVEL >= 200809L 1040 #define MSG_NOSIGNAL 0x80000 /* do not generate SIGPIPE on EOF */ 1041 #endif /* __DARWIN_C_LEVEL */ 1042 1043 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1044 #ifdef KERNEL 1045 #define MSG_USEUPCALL 0x80000000 /* Inherit upcall in sock_accept */ 1046 #endif 1047 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1048 1049 /* 1050 * Header for ancillary data objects in msg_control buffer. 1051 * Used for additional information with/about a datagram 1052 * not expressible by flags. The format is a sequence 1053 * of message elements headed by cmsghdr structures. 1054 */ 1055 struct cmsghdr { 1056 socklen_t cmsg_len; /* [XSI] data byte count, including hdr */ 1057 int cmsg_level; /* [XSI] originating protocol */ 1058 int cmsg_type; /* [XSI] protocol-specific type */ 1059 /* followed by unsigned char cmsg_data[]; */ 1060 }; 1061 1062 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1063 #ifndef __APPLE__ 1064 /* 1065 * While we may have more groups than this, the cmsgcred struct must 1066 * be able to fit in an mbuf, and NGROUPS_MAX is too large to allow 1067 * this. 1068 */ 1069 #define CMGROUP_MAX 16 1070 1071 /* 1072 * Credentials structure, used to verify the identity of a peer 1073 * process that has sent us a message. This is allocated by the 1074 * peer process but filled in by the kernel. This prevents the 1075 * peer from lying about its identity. (Note that cmcred_groups[0] 1076 * is the effective GID.) 1077 */ 1078 struct cmsgcred { 1079 pid_t cmcred_pid; /* PID of sending process */ 1080 uid_t cmcred_uid; /* real UID of sending process */ 1081 uid_t cmcred_euid; /* effective UID of sending process */ 1082 gid_t cmcred_gid; /* real GID of sending process */ 1083 short cmcred_ngroups; /* number or groups */ 1084 gid_t cmcred_groups[CMGROUP_MAX]; /* groups */ 1085 }; 1086 #endif 1087 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1088 1089 /* given pointer to struct cmsghdr, return pointer to data */ 1090 #define CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 1091 __DARWIN_ALIGN32(sizeof(struct cmsghdr))) 1092 1093 /* 1094 * RFC 2292 requires to check msg_controllen, in case that the kernel returns 1095 * an empty list for some reasons. 1096 */ 1097 #define CMSG_FIRSTHDR(mhdr) \ 1098 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \ 1099 (struct cmsghdr *)(mhdr)->msg_control : \ 1100 (struct cmsghdr *)0L) 1101 1102 1103 /* 1104 * Given pointer to struct cmsghdr, return pointer to next cmsghdr 1105 * RFC 2292 says that CMSG_NXTHDR(mhdr, NULL) is equivalent to CMSG_FIRSTHDR(mhdr) 1106 */ 1107 #define CMSG_NXTHDR(mhdr, cmsg) \ 1108 ((char *)(cmsg) == (char *)0L ? CMSG_FIRSTHDR(mhdr) : \ 1109 ((((unsigned char *)(cmsg) + \ 1110 __DARWIN_ALIGN32((__uint32_t)(cmsg)->cmsg_len) + \ 1111 __DARWIN_ALIGN32(sizeof(struct cmsghdr))) > \ 1112 ((unsigned char *)(mhdr)->msg_control + \ 1113 (mhdr)->msg_controllen)) ? \ 1114 (struct cmsghdr *)0L /* NULL */ : \ 1115 (struct cmsghdr *)(void *)((unsigned char *)(cmsg) + \ 1116 __DARWIN_ALIGN32((__uint32_t)(cmsg)->cmsg_len)))) 1117 1118 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1119 /* RFC 2292 additions */ 1120 #define CMSG_SPACE(l) (__DARWIN_ALIGN32(sizeof(struct cmsghdr)) + __DARWIN_ALIGN32(l)) 1121 #define CMSG_LEN(l) (__DARWIN_ALIGN32(sizeof(struct cmsghdr)) + (l)) 1122 1123 #ifdef KERNEL 1124 #define CMSG_ALIGN(n) ((typeof(n))__DARWIN_ALIGN32(n)) 1125 #endif 1126 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1127 1128 /* "Socket"-level control message types: */ 1129 #define SCM_RIGHTS 0x01 /* access rights (array of int) */ 1130 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1131 #define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */ 1132 #define SCM_CREDS 0x03 /* process creds (struct cmsgcred) */ 1133 #define SCM_TIMESTAMP_MONOTONIC 0x04 /* timestamp (uint64_t) */ 1134 1135 #ifdef PRIVATE 1136 #define SCM_TIMESTAMP_CONTINUOUS 0x07 /* timestamp (uint64_t) */ 1137 #define SCM_MPKL_SEND_INFO 0x08 /* send info for multi-layer packet logging (struct so_mpkl_send_info) */ 1138 #define SCM_MPKL_RECV_INFO 0x09 /* receive info for multi-layer packet logging (struct so_mpkl_recv_info */ 1139 #endif /* PRIVATE */ 1140 1141 #ifdef KERNEL_PRIVATE 1142 /* 1143 * 4.3 compat sockaddr (deprecated) 1144 */ 1145 struct osockaddr { 1146 __uint16_t sa_family; /* address family */ 1147 char sa_data[14]; /* up to 14 bytes of direct address */ 1148 }; 1149 1150 /* 1151 * 4.3-compat message header (deprecated) 1152 */ 1153 struct omsghdr { 1154 void *msg_name; /* optional address */ 1155 socklen_t msg_namelen; /* size of address */ 1156 struct iovec *msg_iov; /* scatter/gather array */ 1157 int msg_iovlen; /* # elements in msg_iov */ 1158 void *msg_accrights; /* access rights sent/rcvd */ 1159 int msg_accrightslen; 1160 }; 1161 1162 #define SA(s) ((struct sockaddr *)(void *)(s)) 1163 #endif /* KERNEL_PRIVATE */ 1164 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1165 1166 /* 1167 * howto arguments for shutdown(2), specified by Posix.1g. 1168 */ 1169 #define SHUT_RD 0 /* shut down the reading side */ 1170 #define SHUT_WR 1 /* shut down the writing side */ 1171 #define SHUT_RDWR 2 /* shut down both sides */ 1172 1173 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1174 /* 1175 * sendfile(2) header/trailer struct 1176 */ 1177 struct sf_hdtr { 1178 struct iovec *headers; /* pointer to an array of header struct iovec's */ 1179 int hdr_cnt; /* number of header iovec's */ 1180 struct iovec *trailers; /* pointer to an array of trailer struct iovec's */ 1181 int trl_cnt; /* number of trailer iovec's */ 1182 }; 1183 1184 #ifdef KERNEL 1185 1186 /* In-kernel representation */ 1187 struct user_sf_hdtr { 1188 user_addr_t headers; /* pointer to an array of header struct iovec's */ 1189 int hdr_cnt; /* number of header iovec's */ 1190 user_addr_t trailers; /* pointer to an array of trailer struct iovec's */ 1191 int trl_cnt; /* number of trailer iovec's */ 1192 }; 1193 1194 /* LP64 user version of struct sf_hdtr */ 1195 struct user64_sf_hdtr { 1196 user64_addr_t headers; /* pointer to an array of header struct iovec's */ 1197 int hdr_cnt; /* number of header iovec's */ 1198 user64_addr_t trailers; /* pointer to an array of trailer struct iovec's */ 1199 int trl_cnt; /* number of trailer iovec's */ 1200 }; 1201 1202 /* ILP32 user version of struct sf_hdtr */ 1203 struct user32_sf_hdtr { 1204 user32_addr_t headers; /* pointer to an array of header struct iovec's */ 1205 int hdr_cnt; /* number of header iovec's */ 1206 user32_addr_t trailers; /* pointer to an array of trailer struct iovec's */ 1207 int trl_cnt; /* number of trailer iovec's */ 1208 }; 1209 1210 #endif /* KERNEL */ 1211 1212 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1213 1214 #ifdef PRIVATE 1215 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1216 1217 /* 1218 * Structure for SIOCGASSOCIDS 1219 */ 1220 struct so_aidreq { 1221 __uint32_t sar_cnt; /* number of associations */ 1222 sae_associd_t *sar_aidp; /* array of association IDs */ 1223 }; 1224 1225 #ifdef BSD_KERNEL_PRIVATE 1226 struct so_aidreq32 { 1227 __uint32_t sar_cnt; 1228 user32_addr_t sar_aidp; 1229 }; 1230 1231 struct so_aidreq64 { 1232 __uint32_t sar_cnt; 1233 user64_addr_t sar_aidp __attribute__((aligned(8))); 1234 }; 1235 #endif /* BSD_KERNEL_PRIVATE */ 1236 1237 /* 1238 * Structure for SIOCGCONNIDS 1239 */ 1240 struct so_cidreq { 1241 sae_associd_t scr_aid; /* association ID */ 1242 __uint32_t scr_cnt; /* number of connections */ 1243 sae_connid_t *scr_cidp; /* array of connection IDs */ 1244 }; 1245 1246 #ifdef BSD_KERNEL_PRIVATE 1247 struct so_cidreq32 { 1248 sae_associd_t scr_aid; 1249 __uint32_t scr_cnt; 1250 user32_addr_t scr_cidp; 1251 }; 1252 1253 struct so_cidreq64 { 1254 sae_associd_t scr_aid; 1255 __uint32_t scr_cnt; 1256 user64_addr_t scr_cidp __attribute__((aligned(8))); 1257 }; 1258 #endif /* BSD_KERNEL_PRIVATE */ 1259 1260 /* 1261 * Structure for SIOCGCONNINFO 1262 */ 1263 struct so_cinforeq { 1264 sae_connid_t scir_cid; /* connection ID */ 1265 __uint32_t scir_flags; /* see flags below */ 1266 __uint32_t scir_ifindex; /* (last) outbound interface */ 1267 __int32_t scir_error; /* most recent error */ 1268 struct sockaddr *scir_src; /* source address */ 1269 socklen_t scir_src_len; /* source address len */ 1270 struct sockaddr *scir_dst; /* destination address */ 1271 socklen_t scir_dst_len; /* destination address len */ 1272 __uint32_t scir_aux_type; /* aux data type (CIAUX) */ 1273 void *scir_aux_data; /* aux data */ 1274 __uint32_t scir_aux_len; /* aux data len */ 1275 }; 1276 1277 #ifdef BSD_KERNEL_PRIVATE 1278 struct so_cinforeq32 { 1279 sae_connid_t scir_cid; 1280 __uint32_t scir_flags; 1281 __uint32_t scir_ifindex; 1282 __int32_t scir_error; 1283 user32_addr_t scir_src; 1284 socklen_t scir_src_len; 1285 user32_addr_t scir_dst; 1286 socklen_t scir_dst_len; 1287 __uint32_t scir_aux_type; 1288 user32_addr_t scir_aux_data; 1289 __uint32_t scir_aux_len; 1290 }; 1291 1292 struct so_cinforeq64 { 1293 sae_connid_t scir_cid; 1294 __uint32_t scir_flags; 1295 __uint32_t scir_ifindex; 1296 __int32_t scir_error; 1297 user64_addr_t scir_src __attribute__((aligned(8))); 1298 socklen_t scir_src_len; 1299 user64_addr_t scir_dst __attribute__((aligned(8))); 1300 socklen_t scir_dst_len; 1301 __uint32_t scir_aux_type; 1302 user64_addr_t scir_aux_data __attribute__((aligned(8))); 1303 __uint32_t scir_aux_len; 1304 }; 1305 #endif /* BSD_KERNEL_PRIVATE */ 1306 1307 /* valid connection info flags */ 1308 #define CIF_CONNECTING 0x1 /* connection was attempted */ 1309 #define CIF_CONNECTED 0x2 /* connection is established */ 1310 #define CIF_DISCONNECTING 0x4 /* disconnection was attempted */ 1311 #define CIF_DISCONNECTED 0x8 /* has been disconnected */ 1312 #define CIF_BOUND_IF 0x10 /* bound to an interface */ 1313 #define CIF_BOUND_IP 0x20 /* bound to a src address */ 1314 #define CIF_BOUND_PORT 0x40 /* bound to a src port */ 1315 #define CIF_PREFERRED 0x80 /* connection is primary/preferred */ 1316 #define CIF_MP_CAPABLE 0x100 /* supports multipath protocol */ 1317 #define CIF_MP_READY 0x200 /* multipath protocol confirmed */ 1318 #define CIF_MP_DEGRADED 0x400 /* has lost its multipath capability */ 1319 #define CIF_MP_ACTIVE 0x800 /* this is the active subflow */ 1320 1321 /* valid connection info auxiliary data types */ 1322 #define CIAUX_TCP 0x1 /* TCP auxiliary data (conninfo_tcp_t) */ 1323 #define CIAUX_MPTCP 0x2 /* MPTCP auxiliary data (conninfo_multipathtcp) */ 1324 1325 /* 1326 * Structure for SIOC{S,G}CONNORDER 1327 */ 1328 struct so_cordreq { 1329 sae_connid_t sco_cid; /* connection ID */ 1330 __uint32_t sco_rank; /* rank (0 means unspecified) */ 1331 }; 1332 1333 /* 1334 * Common structure for KEV_NETPOLICY_SUBCLASS 1335 */ 1336 struct netpolicy_event_data { 1337 __uint64_t eupid; /* effective unique PID */ 1338 __uint64_t epid; /* effective PID */ 1339 uuid_t euuid; /* effective UUID */ 1340 }; 1341 1342 /* 1343 * NETPOLICY_IFDENIED event structure 1344 */ 1345 struct kev_netpolicy_ifdenied { 1346 struct netpolicy_event_data ev_data; 1347 __uint32_t ev_if_functional_type; 1348 }; 1349 1350 /* 1351 * KEV_NETPOLICY_NETDENIED event structure 1352 */ 1353 struct kev_netpolicy_netdenied { 1354 struct netpolicy_event_data ev_data; 1355 __uint32_t ev_network_type; 1356 }; 1357 1358 /* 1359 * Network Service Type to DiffServ Code Point mapping 1360 */ 1361 struct netsvctype_dscp_map { 1362 int netsvctype; 1363 u_int8_t dscp; /* 6 bits diffserv code point */ 1364 }; 1365 1366 /* 1367 * Multi-layer packet logging require SO_MPK_LOG to be set 1368 */ 1369 struct so_mpkl_send_info { 1370 uuid_t mpkl_uuid; 1371 __uint8_t mpkl_proto; /* see net/multi_layer_pkt_log.h */ 1372 }; 1373 1374 struct so_mpkl_recv_info { 1375 __uint32_t mpkl_seq; 1376 __uint8_t mpkl_proto; /* see net/multi_layer_pkt_log.h */ 1377 }; 1378 1379 #ifndef KERNEL 1380 __BEGIN_DECLS 1381 1382 extern int peeloff(int s, sae_associd_t); 1383 extern int socket_delegate(int, int, int, pid_t); 1384 1385 /* 1386 * recvmsg_x() is a system call similar to recvmsg(2) to receive 1387 * several datagrams at once in the array of message headers "msgp". 1388 * 1389 * recvmsg_x() can be used only with protocols handlers that have been specially 1390 * modified to support sending and receiving several datagrams at once. 1391 * 1392 * The size of the array "msgp" is given by the argument "cnt". 1393 * 1394 * The "flags" arguments supports only the value MSG_DONTWAIT. 1395 * 1396 * Each member of "msgp" array is of type "struct msghdr_x". 1397 * 1398 * The "msg_iov" and "msg_iovlen" are input parameters that describe where to 1399 * store a datagram in a scatter gather locations of buffers -- see recvmsg(2). 1400 * On output the field "msg_datalen" gives the length of the received datagram. 1401 * 1402 * The field "msg_flags" must be set to zero on input. On output, "msg_flags" 1403 * may have MSG_TRUNC set to indicate the trailing portion of the datagram was 1404 * discarded because the datagram was larger than the buffer supplied. 1405 * recvmsg_x() returns as soon as a datagram is truncated. 1406 * 1407 * recvmsg_x() may return with less than "cnt" datagrams received based on 1408 * the low water mark and the amount of data pending in the socket buffer. 1409 * 1410 * recvmsg_x() returns the number of datagrams that have been received, 1411 * or -1 if an error occurred. 1412 * 1413 * NOTE: This a private system call, the API is subject to change. 1414 */ 1415 ssize_t recvmsg_x(int s, const struct msghdr_x *msgp, u_int cnt, int flags); 1416 1417 /* 1418 * sendmsg_x() is a system call similar to send(2) to send 1419 * several datagrams at once in the array of message headers "msgp". 1420 * 1421 * sendmsg_x() can be used only with protocols handlers that have been specially 1422 * modified to support sending and receiving several datagrams at once. 1423 * 1424 * The size of the array "msgp" is given by the argument "cnt". 1425 * 1426 * The "flags" arguments supports only the value MSG_DONTWAIT. 1427 * 1428 * Each member of "msgp" array is of type "struct msghdr_x". 1429 * 1430 * The "msg_iov" and "msg_iovlen" are input parameters that specify the 1431 * data to be sent in a scatter gather locations of buffers -- see sendmsg(2). 1432 * 1433 * sendmsg_x() fails with EMSGSIZE if the sum of the length of the datagrams 1434 * is greater than the high water mark. 1435 * 1436 * Address and ancillary data are not supported so the following fields 1437 * must be set to zero on input: 1438 * "msg_name", "msg_namelen", "msg_control" and "msg_controllen". 1439 * 1440 * The field "msg_flags" and "msg_datalen" must be set to zero on input. 1441 * 1442 * sendmsg_x() returns the number of datagrams that have been sent, 1443 * or -1 if an error occurred. 1444 * 1445 * NOTE: This a private system call, the API is subject to change. 1446 */ 1447 ssize_t sendmsg_x(int s, const struct msghdr_x *msgp, u_int cnt, int flags); 1448 __END_DECLS 1449 #endif /* !KERNEL */ 1450 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1451 #endif /* PRIVATE */ 1452 1453 #ifndef KERNEL 1454 __BEGIN_DECLS 1455 1456 int accept(int, struct sockaddr * __restrict, socklen_t * __restrict) 1457 __DARWIN_ALIAS_C(accept); 1458 int bind(int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS(bind); 1459 int connect(int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS_C(connect); 1460 int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict) 1461 __DARWIN_ALIAS(getpeername); 1462 int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict) 1463 __DARWIN_ALIAS(getsockname); 1464 int getsockopt(int, int, int, void * __restrict, socklen_t * __restrict); 1465 int listen(int, int) __DARWIN_ALIAS(listen); 1466 ssize_t recv(int, void *, size_t, int) __DARWIN_ALIAS_C(recv); 1467 ssize_t recvfrom(int, void *, size_t, int, struct sockaddr * __restrict, 1468 socklen_t * __restrict) __DARWIN_ALIAS_C(recvfrom); 1469 ssize_t recvmsg(int, struct msghdr *, int) __DARWIN_ALIAS_C(recvmsg); 1470 ssize_t send(int, const void *, size_t, int) __DARWIN_ALIAS_C(send); 1471 ssize_t sendmsg(int, const struct msghdr *, int) __DARWIN_ALIAS_C(sendmsg); 1472 ssize_t sendto(int, const void *, size_t, 1473 int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS_C(sendto); 1474 int setsockopt(int, int, int, const void *, socklen_t); 1475 int shutdown(int, int); 1476 int sockatmark(int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0); 1477 int socket(int, int, int); 1478 int socketpair(int, int, int, int *) __DARWIN_ALIAS(socketpair); 1479 1480 #if !defined(_POSIX_C_SOURCE) 1481 int sendfile(int, int, off_t, off_t *, struct sf_hdtr *, int); 1482 #endif /* !_POSIX_C_SOURCE */ 1483 1484 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1485 void pfctlinput(int, struct sockaddr *); 1486 1487 __API_AVAILABLE(macosx(10.11), ios(9.0), tvos(9.0), watchos(2.0)) 1488 int connectx(int, const sa_endpoints_t *, sae_associd_t, unsigned int, 1489 const struct iovec *, unsigned int, size_t *, sae_connid_t *); 1490 1491 __API_AVAILABLE(macosx(10.11), ios(9.0), tvos(9.0), watchos(2.0)) 1492 int disconnectx(int, sae_associd_t, sae_connid_t); 1493 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1494 __END_DECLS 1495 #endif /* !KERNEL */ 1496 1497 #ifdef KERNEL 1498 #include <sys/kpi_socket.h> 1499 #endif 1500 1501 #endif /* !_SYS_SOCKET_H_ */ 1502