1 /* 2 * Copyright (c) 2000-2022 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 <sys/constrained_ctypes.h> 78 #include <machine/_param.h> 79 #include <net/net_kev.h> 80 81 #ifdef PRIVATE 82 #include <sys/param.h> 83 #include <uuid/uuid.h> 84 #endif /* PRIVATE */ 85 86 #ifdef XNU_KERNEL_PRIVATE 87 #include <kern/assert.h> 88 #include <kern/kalloc.h> 89 #endif /* XNU_KERNEL_PRIVATE */ 90 91 #ifndef KERNEL 92 #include <Availability.h> 93 #endif 94 95 /* 96 * Definitions related to sockets: types, address families, options. 97 */ 98 99 /* 100 * Data types. 101 */ 102 103 #include <sys/_types/_gid_t.h> 104 #include <sys/_types/_off_t.h> 105 #include <sys/_types/_pid_t.h> 106 #include <sys/_types/_sa_family_t.h> 107 #include <sys/_types/_socklen_t.h> 108 109 /* XXX Not explicitly defined by POSIX, but function return types are */ 110 #include <sys/_types/_size_t.h> 111 112 /* XXX Not explicitly defined by POSIX, but function return types are */ 113 #include <sys/_types/_ssize_t.h> 114 115 /* 116 * [XSI] The iovec structure shall be defined as described in <sys/uio.h>. 117 */ 118 #include <sys/_types/_iovec_t.h> 119 120 /* 121 * Types 122 */ 123 #define SOCK_STREAM 1 /* stream socket */ 124 #define SOCK_DGRAM 2 /* datagram socket */ 125 #define SOCK_RAW 3 /* raw-protocol interface */ 126 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 127 #define SOCK_RDM 4 /* reliably-delivered message */ 128 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 129 #define SOCK_SEQPACKET 5 /* sequenced packet stream */ 130 131 /* 132 * Option flags per-socket. 133 */ 134 #define SO_DEBUG 0x0001 /* turn on debugging info recording */ 135 #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ 136 #define SO_REUSEADDR 0x0004 /* allow local address reuse */ 137 #define SO_KEEPALIVE 0x0008 /* keep connections alive */ 138 #define SO_DONTROUTE 0x0010 /* just use interface addresses */ 139 #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */ 140 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 141 #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */ 142 #define SO_LINGER 0x0080 /* linger on close if data present (in ticks) */ 143 #define SO_LINGER_SEC 0x1080 /* linger on close if data present (in seconds) */ 144 #else 145 #define SO_LINGER 0x1080 /* linger on close if data present (in seconds) */ 146 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 147 #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */ 148 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 149 #define SO_REUSEPORT 0x0200 /* allow local address & port reuse */ 150 #define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */ 151 #define SO_TIMESTAMP_MONOTONIC 0x0800 /* Monotonically increasing timestamp on rcvd dgram */ 152 #ifndef __APPLE__ 153 #define SO_ACCEPTFILTER 0x1000 /* there is an accept filter */ 154 #else 155 #define SO_DONTTRUNC 0x2000 /* APPLE: Retain unread data */ 156 /* (ATOMIC proto) */ 157 #define SO_WANTMORE 0x4000 /* APPLE: Give hint when more data ready */ 158 #define SO_WANTOOBFLAG 0x8000 /* APPLE: Want OOB in MSG_FLAG on receive */ 159 160 #ifdef PRIVATE 161 #define SO_NOWAKEFROMSLEEP 0x10000 /* Don't wake for traffic to this socket */ 162 #define SO_NOAPNFALLBK 0x20000 /* Don't attempt APN fallback for the socket */ 163 #define SO_TIMESTAMP_CONTINUOUS 0x40000 /* Continuous monotonic timestamp on rcvd dgram */ 164 #endif 165 166 #endif /* (!__APPLE__) */ 167 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 168 169 /* 170 * Additional options, not kept in so_options. 171 */ 172 #define SO_SNDBUF 0x1001 /* send buffer size */ 173 #define SO_RCVBUF 0x1002 /* receive buffer size */ 174 #define SO_SNDLOWAT 0x1003 /* send low-water mark */ 175 #define SO_RCVLOWAT 0x1004 /* receive low-water mark */ 176 #define SO_SNDTIMEO 0x1005 /* send timeout */ 177 #define SO_RCVTIMEO 0x1006 /* receive timeout */ 178 #define SO_ERROR 0x1007 /* get error status and clear */ 179 #define SO_TYPE 0x1008 /* get socket type */ 180 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 181 #define SO_LABEL 0x1010 /* deprecated */ 182 #define SO_PEERLABEL 0x1011 /* deprecated */ 183 #ifdef __APPLE__ 184 #define SO_NREAD 0x1020 /* APPLE: get 1st-packet byte count */ 185 #define SO_NKE 0x1021 /* APPLE: Install socket-level NKE */ 186 #define SO_NOSIGPIPE 0x1022 /* APPLE: No SIGPIPE on EPIPE */ 187 #define SO_NOADDRERR 0x1023 /* APPLE: Returns EADDRNOTAVAIL when src is not available anymore */ 188 #define SO_NWRITE 0x1024 /* APPLE: Get number of bytes currently in send socket buffer */ 189 #define SO_REUSESHAREUID 0x1025 /* APPLE: Allow reuse of port/socket by different userids */ 190 #ifdef __APPLE_API_PRIVATE 191 #define SO_NOTIFYCONFLICT 0x1026 /* APPLE: send notification if there is a bind on a port which is already in use */ 192 #define SO_UPCALLCLOSEWAIT 0x1027 /* APPLE: block on close until an upcall returns */ 193 #endif 194 #ifdef PRIVATE 195 #define SO_RESTRICTIONS 0x1081 /* APPLE: deny flag set */ 196 #define SO_RESTRICT_DENY_IN 0x1 /* deny inbound (trapdoor) */ 197 #define SO_RESTRICT_DENY_OUT 0x2 /* deny outbound (trapdoor) */ 198 #define SO_RESTRICT_DENY_CELLULAR 0x4 /* deny use of cellular (trapdoor) */ 199 #define SO_RESTRICT_DENY_EXPENSIVE 0x8 /* deny use of expensive if (trapdoor) */ 200 #define SO_RESTRICT_DENY_CONSTRAINED 0x10 /* deny use of expensive if (trapdoor) */ 201 #endif /* PRIVATE */ 202 #define SO_RANDOMPORT 0x1082 /* APPLE: request local port randomization */ 203 #define SO_NP_EXTENSIONS 0x1083 /* To turn off some POSIX behavior */ 204 #endif 205 206 #ifdef PRIVATE 207 #define SO_EXECPATH 0x1085 /* Application Firewall Socket option */ 208 209 /* 210 * Traffic service class definitions (lowest to highest): 211 * 212 * SO_TC_BK_SYS 213 * "Background System-Initiated", high delay tolerant, high loss 214 * tolerant, elastic flow, variable size & long-lived. E.g: system- 215 * initiated iCloud synching or Time Capsule backup, for which there 216 * is no progress feedbacks. 217 * 218 * SO_TC_BK 219 * "Background", user-initiated, high delay tolerant, high loss tolerant, 220 * elastic flow, variable size. E.g. user-initiated iCloud synching or 221 * Time Capsule backup; or traffics of background applications, for which 222 * there is some progress feedbacks. 223 * 224 * SO_TC_BE 225 * "Best Effort", unclassified/standard. This is the default service 226 * class; pretty much a mix of everything. 227 * 228 * SO_TC_RD 229 * "Responsive Data", a notch higher than "Best Effort", medium delay 230 * tolerant, elastic & inelastic flow, bursty, long-lived. E.g. email, 231 * instant messaging, for which there is a sense of interactivity and 232 * urgency (user waiting for output). 233 * 234 * SO_TC_OAM 235 * "Operations, Administration, and Management", medium delay tolerant, 236 * low-medium loss tolerant, elastic & inelastic flows, variable size. 237 * E.g. VPN tunnels. 238 * 239 * SO_TC_AV 240 * "Multimedia Audio/Video Streaming", medium delay tolerant, low-medium 241 * loss tolerant, elastic flow, constant packet interval, variable rate & 242 * size. E.g. AirPlay playback (both video and audio). 243 * 244 * SO_TC_RV 245 * "Responsive Multimedia Audio/Video", low delay tolerant, low-medium 246 * loss tolerant, elastic flow, variable packet interval, rate and size. 247 * E.g. AirPlay mirroring, screen sharing. 248 * 249 * SO_TC_VI 250 * "Interactive Video", low delay tolerant, low-medium loss tolerant, 251 * elastic flow, constant packet interval, variable rate & size. E.g. 252 * FaceTime video. 253 * 254 * SO_TC_VO 255 * "Interactive Voice", low delay tolerant, low loss tolerant, inelastic 256 * flow, constant packet rate, somewhat fixed size. E.g. VoIP including 257 * FaceTime audio. 258 * 259 * SO_TC_CTL 260 * "Network Control", low delay tolerant, low loss tolerant, inelastic 261 * flow, rate is bursty but short, variable size. E.g. DNS queries; 262 * certain types of locally-originated ICMP, ICMPv6; IGMP/MLD join/leave, 263 * ARP. 264 */ 265 #define SO_TRAFFIC_CLASS 0x1086 /* Traffic service class (int) */ 266 #define SO_TC_BK_SYS 100 /* lowest class */ 267 #define SO_TC_BK 200 268 #define SO_TC_BE 0 269 #define SO_TC_RD 300 270 #define SO_TC_OAM 400 271 #define SO_TC_AV 500 272 #define SO_TC_RV 600 273 #define SO_TC_VI 700 274 #define SO_TC_VO 800 275 #define SO_TC_CTL 900 /* highest class */ 276 #define SO_TC_MAX 10 /* Total # of traffic classes */ 277 #ifdef XNU_KERNEL_PRIVATE 278 #define _SO_TC_BK 1 /* deprecated */ 279 #define _SO_TC_VI 2 /* deprecated */ 280 #define _SO_TC_VO 3 /* deprecated */ 281 #define _SO_TC_MAX 4 /* deprecated */ 282 283 #define SO_VALID_TC(c) \ 284 (c == SO_TC_BK_SYS || c == SO_TC_BK || c == SO_TC_BE || \ 285 c == SO_TC_RD || c == SO_TC_OAM || c == SO_TC_AV || \ 286 c == SO_TC_RV || c == SO_TC_VI || c == SO_TC_VO || \ 287 c == SO_TC_CTL || c == SO_TC_NETSVC_SIG) 288 289 #define SO_TC_UNSPEC ((int)-1) /* Traffic class not specified */ 290 291 #define SO_TC_SIG SO_TC_VI /* to be removed XXX */ 292 293 #define SOTCIX_BK_SYS 0 294 #define SOTCIX_BK 1 295 #define SOTCIX_BE 2 296 #define SOTCIX_RD 3 297 #define SOTCIX_OAM 4 298 #define SOTCIX_AV 5 299 #define SOTCIX_RV 6 300 #define SOTCIX_VI 7 301 #define SOTCIX_VO 8 302 #define SOTCIX_CTL 9 303 #endif /* XNU_KERNEL_PRIVATE */ 304 305 /* Background socket configuration flags */ 306 #define TRAFFIC_MGT_SO_BACKGROUND 0x0001 /* background socket */ 307 #define TRAFFIC_MGT_TCP_RECVBG 0x0002 /* Only TCP sockets, receiver throttling */ 308 309 #define SO_RECV_TRAFFIC_CLASS 0x1087 /* Receive traffic class (bool) */ 310 #define SO_TRAFFIC_CLASS_DBG 0x1088 /* Debug traffic class (struct so_tcdbg) */ 311 #define SO_OPTION_UNUSED_0 0x1089 /* Traffic class statistics */ 312 #define SO_PRIVILEGED_TRAFFIC_CLASS 0x1090 /* Privileged traffic class (bool) */ 313 #define SO_DEFUNCTIT 0x1091 /* Defunct a socket (only in internal builds) */ 314 #define SO_DEFUNCTOK 0x1100 /* can be defunct'd */ 315 #define SO_ISDEFUNCT 0x1101 /* get defunct status */ 316 317 #define SO_OPPORTUNISTIC 0x1102 /* deprecated; use SO_TRAFFIC_CLASS */ 318 319 /* 320 * SO_FLUSH flushes any unsent data generated by a given socket. It takes 321 * an integer parameter, which can be any of the SO_TC traffic class values, 322 * or the special SO_TC_ALL value. 323 */ 324 #define SO_FLUSH 0x1103 /* flush unsent data (int) */ 325 #define SO_TC_ALL (-1) 326 327 #define SO_RECV_ANYIF 0x1104 /* unrestricted inbound processing */ 328 #define SO_TRAFFIC_MGT_BACKGROUND 0x1105 /* Background traffic management */ 329 330 #define SO_FLOW_DIVERT_TOKEN 0x1106 /* flow divert token */ 331 332 #define SO_DELEGATED 0x1107 /* set socket as delegate (pid_t) */ 333 #define SO_DELEGATED_UUID 0x1108 /* set socket as delegate (uuid_t) */ 334 #define SO_NECP_ATTRIBUTES 0x1109 /* NECP socket attributes (domain, account, etc.) */ 335 #define SO_CFIL_SOCK_ID 0x1110 /* get content filter socket ID (cfil_sock_id_t) */ 336 #define SO_NECP_CLIENTUUID 0x1111 /* NECP Client uuid */ 337 #endif /* PRIVATE */ 338 #define SO_NUMRCVPKT 0x1112 /* number of datagrams in receive socket buffer */ 339 #ifdef PRIVATE 340 #define SO_AWDL_UNRESTRICTED 0x1113 /* try to use AWDL in restricted mode */ 341 #define SO_EXTENDED_BK_IDLE 0x1114 /* extended time to keep socket idle after app is suspended (int) */ 342 #define SO_MARK_CELLFALLBACK 0x1115 /* Mark as initiated by cell fallback */ 343 #endif /* PRIVATE */ 344 #define SO_NET_SERVICE_TYPE 0x1116 /* Network service type */ 345 346 #ifdef PRIVATE 347 #define SO_QOSMARKING_POLICY_OVERRIDE 0x1117 /* int */ 348 #define SO_INTCOPROC_ALLOW 0x1118 /* Try to use internal co-processor interfaces. */ 349 #endif /* PRIVATE */ 350 351 #define SO_NETSVC_MARKING_LEVEL 0x1119 /* Get QoS marking in effect for socket */ 352 353 #ifdef PRIVATE 354 #define SO_NECP_LISTENUUID 0x1120 /* NECP client UUID for listener */ 355 #define SO_MPKL_SEND_INFO 0x1122 /* (struct so_mpkl_send_info) */ 356 #define SO_STATISTICS_EVENT 0x1123 /* int64 argument, an event in statistics collection */ 357 #define SO_WANT_KEV_SOCKET_CLOSED 0x1124 /* want delivery of KEV_SOCKET_CLOSED (int) */ 358 #define SO_MARK_KNOWN_TRACKER 0x1125 /* Mark as a connection to a known tracker */ 359 #define SO_MARK_KNOWN_TRACKER_NON_APP_INITIATED 0x1126 /* Mark tracker connection to be non-app initiated */ 360 #define SO_MARK_WAKE_PKT 0x1127 /* Mark next packet as a wake packet, one shot (int) */ 361 #define SO_RECV_WAKE_PKT 0x1128 /* Receive wake packet indication as ancillary data (int) */ 362 #define SO_MARK_APPROVED_APP_DOMAIN 0x1129 /* Mark connection as being for an approved associated app domain */ 363 #define SO_FALLBACK_MODE 0x1130 /* Indicates the mode of fallback used */ 364 #endif /* PRIVATE */ 365 366 #define SO_RESOLVER_SIGNATURE 0x1131 /* A signed data blob from the system resolver */ 367 #ifdef PRIVATE 368 #define SO_MARK_CELLFALLBACK_UUID 0x1132 /* Mark as initiated by cell fallback using UUID of the connection */ 369 #define SO_APPLICATION_ID 0x1133 /* ID of attributing app - so_application_id_t */ 370 371 struct so_mark_cellfallback_uuid_args { 372 uuid_t flow_uuid; 373 int flow_cellfallback; 374 }; 375 376 typedef struct { 377 uid_t uid; 378 uuid_t effective_uuid; 379 uid_t persona_id; 380 } so_application_id_t; 381 382 #endif 383 384 385 /* When adding new socket-options, you need to make sure MPTCP supports these as well! */ 386 387 /* 388 * Network Service Type for option SO_NET_SERVICE_TYPE 389 * 390 * The vast majority of sockets should use Best Effort that is the default 391 * Network Service Type. Other Network Service Types have to be used only if 392 * the traffic actually matches the description of the Network Service Type. 393 * 394 * Network Service Types do not represent priorities but rather describe 395 * different categories of delay, jitter and loss parameters. 396 * Those parameters may influence protocols from layer 4 protocols like TCP 397 * to layer 2 protocols like Wi-Fi. The Network Service Type can determine 398 * how the traffic is queued and scheduled by the host networking stack and 399 * by other entities on the network like switches and routers. For example 400 * for Wi-Fi, the Network Service Type can select the marking of the 401 * layer 2 packet with the appropriate WMM Access Category. 402 * 403 * There is no point in attempting to game the system and use 404 * a Network Service Type that does not correspond to the actual 405 * traffic characteristic but one that seems to have a higher precedence. 406 * The reason is that for service classes that have lower tolerance 407 * for delay and jitter, the queues size is lower than for service 408 * classes that are more tolerant to delay and jitter. 409 * 410 * For example using a voice service type for bulk data transfer will lead 411 * to disastrous results as soon as congestion happens because the voice 412 * queue overflows and packets get dropped. This is not only bad for the bulk 413 * data transfer but it is also bad for VoIP apps that legitimately are using 414 * the voice service type. 415 * 416 * The characteristics of the Network Service Types are based on the service 417 * classes defined in RFC 4594 "Configuration Guidelines for DiffServ Service 418 * Classes" 419 * 420 * When system detects the outgoing interface belongs to a DiffServ domain 421 * that follows the recommendation of the IETF draft "Guidelines for DiffServ to 422 * IEEE 802.11 Mapping", the packet will marked at layer 3 with a DSCP value 423 * that corresponds to Network Service Type. 424 * 425 * NET_SERVICE_TYPE_BE 426 * "Best Effort", unclassified/standard. This is the default service 427 * class and cover the majority of the traffic. 428 * 429 * NET_SERVICE_TYPE_BK 430 * "Background", high delay tolerant, loss tolerant. elastic flow, 431 * variable size & long-lived. E.g: non-interactive network bulk transfer 432 * like synching or backup. 433 * 434 * NET_SERVICE_TYPE_RD 435 * "Responsive Data", a notch higher than "Best Effort", medium delay 436 * tolerant, elastic & inelastic flow, bursty, long-lived. E.g. email, 437 * instant messaging, for which there is a sense of interactivity and 438 * urgency (user waiting for output). 439 * 440 * NET_SERVICE_TYPE_OAM 441 * "Operations, Administration, and Management", medium delay tolerant, 442 * low-medium loss tolerant, elastic & inelastic flows, variable size. 443 * E.g. VPN tunnels. 444 * 445 * NET_SERVICE_TYPE_AV 446 * "Multimedia Audio/Video Streaming", medium delay tolerant, low-medium 447 * loss tolerant, elastic flow, constant packet interval, variable rate 448 * and size. E.g. video and audio playback with buffering. 449 * 450 * NET_SERVICE_TYPE_RV 451 * "Responsive Multimedia Audio/Video", low delay tolerant, low-medium 452 * loss tolerant, elastic flow, variable packet interval, rate and size. 453 * E.g. screen sharing. 454 * 455 * NET_SERVICE_TYPE_VI 456 * "Interactive Video", low delay tolerant, low-medium loss tolerant, 457 * elastic flow, constant packet interval, variable rate & size. E.g. 458 * video telephony. 459 * 460 * NET_SERVICE_TYPE_SIG 461 * "Signaling", low delay tolerant, low loss tolerant, inelastic flow, 462 * jitter tolerant, rate is bursty but short, variable size. E.g. SIP. 463 * 464 * NET_SERVICE_TYPE_VO 465 * "Interactive Voice", very low delay tolerant, very low loss tolerant, 466 * inelastic flow, constant packet rate, somewhat fixed size. 467 * E.g. VoIP. 468 */ 469 470 #define NET_SERVICE_TYPE_BE 0 /* Best effort */ 471 #define NET_SERVICE_TYPE_BK 1 /* Background system initiated */ 472 #define NET_SERVICE_TYPE_SIG 2 /* Signaling */ 473 #define NET_SERVICE_TYPE_VI 3 /* Interactive Video */ 474 #define NET_SERVICE_TYPE_VO 4 /* Interactive Voice */ 475 #define NET_SERVICE_TYPE_RV 5 /* Responsive Multimedia Audio/Video */ 476 #define NET_SERVICE_TYPE_AV 6 /* Multimedia Audio/Video Streaming */ 477 #define NET_SERVICE_TYPE_OAM 7 /* Operations, Administration, and Management */ 478 #define NET_SERVICE_TYPE_RD 8 /* Responsive Data */ 479 480 #if PRIVATE 481 #define _NET_SERVICE_TYPE_COUNT 9 482 #define _NET_SERVICE_TYPE_UNSPEC ((int)-1) 483 484 #define IS_VALID_NET_SERVICE_TYPE(c) \ 485 (c >= NET_SERVICE_TYPE_BE && c <= NET_SERVICE_TYPE_RD) 486 487 extern const int sotc_by_netservicetype[_NET_SERVICE_TYPE_COUNT]; 488 489 /* 490 * Facility to pass Network Service Type values using SO_TRAFFIC_CLASS 491 * Mostly useful to simplify implementation of frameworks to adopt the new 492 * Network Service Type values for Signaling. 493 */ 494 #define SO_TC_NET_SERVICE_OFFSET 10000 495 #define SO_TC_NETSVC_SIG (SO_TC_NET_SERVICE_OFFSET + NET_SERVICE_TYPE_SIG) 496 #endif /* PRIVATE */ 497 498 /* These are supported values for SO_NETSVC_MARKING_LEVEL */ 499 #define NETSVC_MRKNG_UNKNOWN 0 /* The outgoing network interface is not known */ 500 #define NETSVC_MRKNG_LVL_L2 1 /* Default marking at layer 2 (for example Wi-Fi WMM) */ 501 #define NETSVC_MRKNG_LVL_L3L2_ALL 2 /* Layer 3 DSCP marking and layer 2 marking for all Network Service Types */ 502 #define NETSVC_MRKNG_LVL_L3L2_BK 3 /* The system policy limits layer 3 DSCP marking and layer 2 marking 503 * to background Network Service Types */ 504 505 506 typedef __uint32_t sae_associd_t; 507 #define SAE_ASSOCID_ANY 0 508 #define SAE_ASSOCID_ALL ((sae_associd_t)(-1ULL)) 509 510 typedef __uint32_t sae_connid_t; 511 #define SAE_CONNID_ANY 0 512 #define SAE_CONNID_ALL ((sae_connid_t)(-1ULL)) 513 514 /* connectx() flag parameters */ 515 #define CONNECT_RESUME_ON_READ_WRITE 0x1 /* resume connect() on read/write */ 516 #define CONNECT_DATA_IDEMPOTENT 0x2 /* data is idempotent */ 517 #define CONNECT_DATA_AUTHENTICATED 0x4 /* data includes security that replaces the TFO-cookie */ 518 519 /* sockaddr endpoints */ 520 typedef struct sa_endpoints { 521 unsigned int sae_srcif; /* optional source interface */ 522 const struct sockaddr *sae_srcaddr; /* optional source address */ 523 socklen_t sae_srcaddrlen; /* size of source address */ 524 const struct sockaddr *sae_dstaddr; /* destination address */ 525 socklen_t sae_dstaddrlen; /* size of destination address */ 526 } sa_endpoints_t; 527 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 528 529 /* 530 * Structure used for manipulating linger option. 531 */ 532 struct linger { 533 int l_onoff; /* option on/off */ 534 int l_linger; /* linger time */ 535 }; 536 537 #ifndef __APPLE__ 538 struct accept_filter_arg { 539 char af_name[16]; 540 char af_arg[256 - 16]; 541 }; 542 #endif 543 544 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 545 #ifdef __APPLE__ 546 547 /* 548 * Structure to control non-portable Sockets extension to POSIX 549 */ 550 struct so_np_extensions { 551 u_int32_t npx_flags; 552 u_int32_t npx_mask; 553 }; 554 555 #define SONPX_SETOPTSHUT 0x000000001 /* flag for allowing setsockopt after shutdown */ 556 557 558 #ifdef KERNEL_PRIVATE 559 #define SONPX_MASK_VALID (SONPX_SETOPTSHUT) 560 #define IS_SO_TC_BACKGROUND(_tc_) ((_tc_) == SO_TC_BK || (_tc_) == SO_TC_BK_SYS) 561 #define IS_SO_TC_BACKGROUNDSYSTEM(_tc_) ((_tc_) == SO_TC_BK_SYS) 562 #endif /* KERNEL_PRIVATE */ 563 564 #endif 565 #endif 566 567 /* 568 * Level number for (get/set)sockopt() to apply to socket itself. 569 */ 570 #define SOL_SOCKET 0xffff /* options for socket level */ 571 572 573 /* 574 * Address families. 575 */ 576 #define AF_UNSPEC 0 /* unspecified */ 577 #define AF_UNIX 1 /* local to host (pipes) */ 578 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 579 #define AF_LOCAL AF_UNIX /* backward compatibility */ 580 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 581 #define AF_INET 2 /* internetwork: UDP, TCP, etc. */ 582 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 583 #define AF_IMPLINK 3 /* arpanet imp addresses */ 584 #define AF_PUP 4 /* pup protocols: e.g. BSP */ 585 #define AF_CHAOS 5 /* mit CHAOS protocols */ 586 #define AF_NS 6 /* XEROX NS protocols */ 587 #define AF_ISO 7 /* ISO protocols */ 588 #define AF_OSI AF_ISO 589 #define AF_ECMA 8 /* European computer manufacturers */ 590 #define AF_DATAKIT 9 /* datakit protocols */ 591 #define AF_CCITT 10 /* CCITT protocols, X.25 etc */ 592 #define AF_SNA 11 /* IBM SNA */ 593 #define AF_DECnet 12 /* DECnet */ 594 #define AF_DLI 13 /* DEC Direct data link interface */ 595 #define AF_LAT 14 /* LAT */ 596 #define AF_HYLINK 15 /* NSC Hyperchannel */ 597 #define AF_APPLETALK 16 /* Apple Talk */ 598 #define AF_ROUTE 17 /* Internal Routing Protocol */ 599 #define AF_LINK 18 /* Link layer interface */ 600 #define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */ 601 #define AF_COIP 20 /* connection-oriented IP, aka ST II */ 602 #define AF_CNT 21 /* Computer Network Technology */ 603 #define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */ 604 #define AF_IPX 23 /* Novell Internet Protocol */ 605 #define AF_SIP 24 /* Simple Internet Protocol */ 606 #define pseudo_AF_PIP 25 /* Help Identify PIP packets */ 607 #define AF_NDRV 27 /* Network Driver 'raw' access */ 608 #define AF_ISDN 28 /* Integrated Services Digital Network */ 609 #define AF_E164 AF_ISDN /* CCITT E.164 recommendation */ 610 #define pseudo_AF_KEY 29 /* Internal key-management function */ 611 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 612 #define AF_INET6 30 /* IPv6 */ 613 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 614 #define AF_NATM 31 /* native ATM access */ 615 #define AF_SYSTEM 32 /* Kernel event messages */ 616 #define AF_NETBIOS 33 /* NetBIOS */ 617 #define AF_PPP 34 /* PPP communication protocol */ 618 #define pseudo_AF_HDRCMPLT 35 /* Used by BPF to not rewrite headers 619 * in interface output routine */ 620 #ifdef PRIVATE 621 #define AF_AFP 36 /* Used by AFP */ 622 #else 623 #define AF_RESERVED_36 36 /* Reserved for internal usage */ 624 #endif 625 #define AF_IEEE80211 37 /* IEEE 802.11 protocol */ 626 #define AF_UTUN 38 627 #ifdef PRIVATE 628 #define AF_MULTIPATH 39 629 #endif /* PRIVATE */ 630 #define AF_VSOCK 40 /* VM Sockets */ 631 #define AF_MAX 41 632 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 633 634 /* 635 * [XSI] Structure used by kernel to store most addresses. 636 */ 637 struct sockaddr { 638 __uint8_t sa_len; /* total length */ 639 sa_family_t sa_family; /* [XSI] address family */ 640 char sa_data[14]; /* [XSI] addr value */ 641 }; 642 __CCT_DECLARE_CONSTRAINED_PTR_TYPES(struct sockaddr, sockaddr); 643 644 /* 645 * Least amount of information that a sockaddr requires. 646 * Sockaddr_header is a compatible prefix structure of 647 * all sockaddr objects. 648 */ 649 struct __sockaddr_header { 650 __uint8_t sa_len; 651 sa_family_t sa_family; 652 }; 653 654 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 655 #define SOCK_MAXADDRLEN 255 /* longest possible addresses */ 656 657 /* 658 * Structure used by kernel to pass protocol 659 * information in raw sockets. 660 */ 661 struct sockproto { 662 __uint16_t sp_family; /* address family */ 663 __uint16_t sp_protocol; /* protocol */ 664 }; 665 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 666 667 /* 668 * RFC 2553: protocol-independent placeholder for socket addresses 669 */ 670 #define _SS_MAXSIZE 128 671 #define _SS_ALIGNSIZE (sizeof(__int64_t)) 672 #define _SS_PAD1SIZE \ 673 (_SS_ALIGNSIZE - sizeof(__uint8_t) - sizeof(sa_family_t)) 674 #define _SS_PAD2SIZE \ 675 (_SS_MAXSIZE - sizeof(__uint8_t) - sizeof(sa_family_t) - \ 676 _SS_PAD1SIZE - _SS_ALIGNSIZE) 677 678 /* 679 * [XSI] sockaddr_storage 680 */ 681 struct sockaddr_storage { 682 __uint8_t ss_len; /* address length */ 683 sa_family_t ss_family; /* [XSI] address family */ 684 char __ss_pad1[_SS_PAD1SIZE]; 685 __int64_t __ss_align; /* force structure storage alignment */ 686 char __ss_pad2[_SS_PAD2SIZE]; 687 }; 688 __CCT_DECLARE_CONSTRAINED_PTR_TYPES(struct sockaddr_storage, sockaddr_storage); 689 690 /* 691 * Protocol families, same as address families for now. 692 */ 693 #define PF_UNSPEC AF_UNSPEC 694 #define PF_LOCAL AF_LOCAL 695 #define PF_UNIX PF_LOCAL /* backward compatibility */ 696 #define PF_INET AF_INET 697 #define PF_IMPLINK AF_IMPLINK 698 #define PF_PUP AF_PUP 699 #define PF_CHAOS AF_CHAOS 700 #define PF_NS AF_NS 701 #define PF_ISO AF_ISO 702 #define PF_OSI AF_ISO 703 #define PF_ECMA AF_ECMA 704 #define PF_DATAKIT AF_DATAKIT 705 #define PF_CCITT AF_CCITT 706 #define PF_SNA AF_SNA 707 #define PF_DECnet AF_DECnet 708 #define PF_DLI AF_DLI 709 #define PF_LAT AF_LAT 710 #define PF_HYLINK AF_HYLINK 711 #define PF_APPLETALK AF_APPLETALK 712 #define PF_ROUTE AF_ROUTE 713 #define PF_LINK AF_LINK 714 #define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */ 715 #define PF_COIP AF_COIP 716 #define PF_CNT AF_CNT 717 #define PF_SIP AF_SIP 718 #define PF_IPX AF_IPX /* same format as AF_NS */ 719 #define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */ 720 #define PF_PIP pseudo_AF_PIP 721 #define PF_NDRV AF_NDRV 722 #define PF_ISDN AF_ISDN 723 #define PF_KEY pseudo_AF_KEY 724 #define PF_INET6 AF_INET6 725 #define PF_NATM AF_NATM 726 #define PF_SYSTEM AF_SYSTEM 727 #define PF_NETBIOS AF_NETBIOS 728 #define PF_PPP AF_PPP 729 #ifdef PRIVATE 730 #define PF_AFP AF_AFP 731 #else 732 #define PF_RESERVED_36 AF_RESERVED_36 733 #endif 734 #define PF_UTUN AF_UTUN 735 #ifdef PRIVATE 736 #define PF_MULTIPATH AF_MULTIPATH 737 #endif /* PRIVATE */ 738 #define PF_VSOCK AF_VSOCK 739 #define PF_MAX AF_MAX 740 741 /* 742 * These do not have socket-layer support: 743 */ 744 #define PF_VLAN ((uint32_t)0x766c616e) /* 'vlan' */ 745 #define PF_BOND ((uint32_t)0x626f6e64) /* 'bond' */ 746 #ifdef KERNEL_PRIVATE 747 #define PF_BRIDGE ((uint32_t)0x62726467) /* 'brdg' */ 748 #define PF_NULL ((uint32_t)0x6e756c6c) /* 'null' */ 749 #endif /* KERNEL_PRIVATE */ 750 751 /* 752 * Definitions for network related sysctl, CTL_NET. 753 * 754 * Second level is protocol family. 755 * Third level is protocol number. 756 * 757 * Further levels are defined by the individual families below. 758 */ 759 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 760 #define NET_MAXID AF_MAX 761 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 762 763 #ifdef KERNEL_PRIVATE 764 #define CTL_NET_NAMES { \ 765 { 0, 0 }, \ 766 { "local", CTLTYPE_NODE }, \ 767 { "inet", CTLTYPE_NODE }, \ 768 { "implink", CTLTYPE_NODE }, \ 769 { "pup", CTLTYPE_NODE }, \ 770 { "chaos", CTLTYPE_NODE }, \ 771 { "xerox_ns", CTLTYPE_NODE }, \ 772 { "iso", CTLTYPE_NODE }, \ 773 { "emca", CTLTYPE_NODE }, \ 774 { "datakit", CTLTYPE_NODE }, \ 775 { "ccitt", CTLTYPE_NODE }, \ 776 { "ibm_sna", CTLTYPE_NODE }, \ 777 { "decnet", CTLTYPE_NODE }, \ 778 { "dec_dli", CTLTYPE_NODE }, \ 779 { "lat", CTLTYPE_NODE }, \ 780 { "hylink", CTLTYPE_NODE }, \ 781 { "appletalk", CTLTYPE_NODE }, \ 782 { "route", CTLTYPE_NODE }, \ 783 { "link_layer", CTLTYPE_NODE }, \ 784 { "xtp", CTLTYPE_NODE }, \ 785 { "coip", CTLTYPE_NODE }, \ 786 { "cnt", CTLTYPE_NODE }, \ 787 { "rtip", CTLTYPE_NODE }, \ 788 { "ipx", CTLTYPE_NODE }, \ 789 { "sip", CTLTYPE_NODE }, \ 790 { "pip", CTLTYPE_NODE }, \ 791 { 0, 0 }, \ 792 { "ndrv", CTLTYPE_NODE }, \ 793 { "isdn", CTLTYPE_NODE }, \ 794 { "key", CTLTYPE_NODE }, \ 795 { "inet6", CTLTYPE_NODE }, \ 796 { "natm", CTLTYPE_NODE }, \ 797 { "sys", CTLTYPE_NODE }, \ 798 { "netbios", CTLTYPE_NODE }, \ 799 { "ppp", CTLTYPE_NODE }, \ 800 { "hdrcomplete", CTLTYPE_NODE }, \ 801 { "vsock", CTLTYPE_NODE }, \ 802 } 803 #endif /* KERNEL_PRIVATE */ 804 805 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 806 /* 807 * PF_ROUTE - Routing table 808 * 809 * Three additional levels are defined: 810 * Fourth: address family, 0 is wildcard 811 * Fifth: type of info, defined below 812 * Sixth: flag(s) to mask with for NET_RT_FLAGS 813 */ 814 #define NET_RT_DUMP 1 /* dump; may limit to a.f. */ 815 #define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */ 816 #define NET_RT_IFLIST 3 /* survey interface list */ 817 #define NET_RT_STAT 4 /* routing statistics */ 818 #define NET_RT_TRASH 5 /* routes not in table but not freed */ 819 #define NET_RT_IFLIST2 6 /* interface list with addresses */ 820 #define NET_RT_DUMP2 7 /* dump; may limit to a.f. */ 821 #ifdef PRIVATE 822 #define NET_RT_DUMPX 8 /* private */ 823 #define NET_RT_DUMPX_FLAGS 9 /* private */ 824 #endif /* PRIVATE */ 825 /* 826 * Allows read access non-local host's MAC address 827 * if the process has neighbor cache entitlement. 828 */ 829 #define NET_RT_FLAGS_PRIV 10 830 #define NET_RT_MAXID 11 831 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 832 833 #ifdef PRIVATE 834 /* These are supported values for SO_STATISTICS_EVENT */ 835 #define SO_STATISTICS_EVENT_ENTER_CELLFALLBACK (1 << 0) 836 #define SO_STATISTICS_EVENT_EXIT_CELLFALLBACK (1 << 1) 837 #define SO_STATISTICS_EVENT_ATTRIBUTION_CHANGE (1 << 2) 838 #define SO_STATISTICS_EVENT_RESERVED_2 (1 << 3) 839 #endif /* PRIVATE */ 840 841 842 #ifdef KERNEL_PRIVATE 843 #define CTL_NET_RT_NAMES { \ 844 { 0, 0 }, \ 845 { "dump", CTLTYPE_STRUCT }, \ 846 { "flags", CTLTYPE_STRUCT }, \ 847 { "iflist", CTLTYPE_STRUCT }, \ 848 { "stat", CTLTYPE_STRUCT }, \ 849 { "trash", CTLTYPE_INT }, \ 850 { "iflist2", CTLTYPE_STRUCT }, \ 851 { "dump2", CTLTYPE_STRUCT }, \ 852 { "dumpx", CTLTYPE_STRUCT }, \ 853 { "dumpx_flags", CTLTYPE_STRUCT }, \ 854 } 855 856 #endif /* KERNEL_PRIVATE */ 857 858 /* 859 * Maximum queue length specifiable by listen. 860 */ 861 #define SOMAXCONN 128 862 863 /* 864 * [XSI] Message header for recvmsg and sendmsg calls. 865 * Used value-result for recvmsg, value only for sendmsg. 866 */ 867 struct msghdr { 868 void *msg_name; /* [XSI] optional address */ 869 socklen_t msg_namelen; /* [XSI] size of address */ 870 struct iovec *msg_iov; /* [XSI] scatter/gather array */ 871 int msg_iovlen; /* [XSI] # elements in msg_iov */ 872 void *msg_control; /* [XSI] ancillary data, see below */ 873 socklen_t msg_controllen; /* [XSI] ancillary data buffer len */ 874 int msg_flags; /* [XSI] flags on received message */ 875 }; 876 877 #ifdef PRIVATE 878 /* 879 * Extended version for sendmsg_x() and recvmsg_x() calls 880 * 881 * For recvmsg_x(), the size of the data received is given by the field 882 * msg_datalen. 883 * 884 * For sendmsg_x(), the size of the data to send is given by the length of 885 * the iovec array -- like sendmsg(). The field msg_datalen is ignored. 886 */ 887 struct msghdr_x { 888 void *msg_name; /* optional address */ 889 socklen_t msg_namelen; /* size of address */ 890 struct iovec *msg_iov; /* scatter/gather array */ 891 int msg_iovlen; /* # elements in msg_iov */ 892 void *msg_control; /* ancillary data, see below */ 893 socklen_t msg_controllen; /* ancillary data buffer len */ 894 int msg_flags; /* flags on received message */ 895 size_t msg_datalen; /* byte length of buffer in msg_iov */ 896 }; 897 #endif /* PRIVATE */ 898 899 #ifdef XNU_KERNEL_PRIVATE 900 /* 901 * In-kernel representation of "struct msghdr" from 902 * userspace. Has enough precision for 32-bit or 903 * 64-bit clients, but does not need to be packed. 904 */ 905 906 struct user_msghdr { 907 user_addr_t msg_name; /* optional address */ 908 socklen_t msg_namelen; /* size of address */ 909 vm_address_t msg_iov; /* scatter/gather array */ 910 int msg_iovlen; /* # elements in msg_iov */ 911 user_addr_t msg_control; /* ancillary data, see below */ 912 socklen_t msg_controllen; /* ancillary data buffer len */ 913 int msg_flags; /* flags on received message */ 914 }; 915 __CCT_DECLARE_CONSTRAINED_PTR_TYPES(struct user_msghdr, user_msghdr); 916 917 /* 918 * LP64 user version of struct msghdr. 919 * WARNING - keep in sync with struct msghdr 920 */ 921 922 struct user64_msghdr { 923 user64_addr_t msg_name; /* optional address */ 924 socklen_t msg_namelen; /* size of address */ 925 user64_addr_t msg_iov; /* scatter/gather array */ 926 int msg_iovlen; /* # elements in msg_iov */ 927 user64_addr_t msg_control; /* ancillary data, see below */ 928 socklen_t msg_controllen; /* ancillary data buffer len */ 929 int msg_flags; /* flags on received message */ 930 }; 931 __CCT_DECLARE_CONSTRAINED_PTR_TYPES(struct user64_msghdr, user64_msghdr); 932 933 /* 934 * ILP32 user version of struct msghdr. 935 * WARNING - keep in sync with struct msghdr 936 */ 937 938 struct user32_msghdr { 939 user32_addr_t msg_name; /* optional address */ 940 socklen_t msg_namelen; /* size of address */ 941 user32_addr_t msg_iov; /* scatter/gather array */ 942 int msg_iovlen; /* # elements in msg_iov */ 943 user32_addr_t msg_control; /* ancillary data, see below */ 944 socklen_t msg_controllen; /* ancillary data buffer len */ 945 int msg_flags; /* flags on received message */ 946 }; 947 __CCT_DECLARE_CONSTRAINED_PTR_TYPES(struct user32_msghdr, user32_msghdr); 948 949 /* 950 * In-kernel representation of "struct msghdr_x" from 951 * userspace. Has enough precision for 32-bit or 952 * 64-bit clients, but does not need to be packed. 953 */ 954 955 struct user_msghdr_x { 956 user_addr_t msg_name; /* optional address */ 957 socklen_t msg_namelen; /* size of address */ 958 vm_address_t msg_iov; /* scatter/gather array */ 959 int msg_iovlen; /* # elements in msg_iov */ 960 user_addr_t msg_control; /* ancillary data, see below */ 961 socklen_t msg_controllen; /* ancillary data buffer len */ 962 int msg_flags; /* flags on received message */ 963 size_t msg_datalen; /* byte length of buffer in msg_iov */ 964 }; 965 __CCT_DECLARE_CONSTRAINED_PTR_TYPES(struct user_msghdr_x, user_msghdr_x); 966 967 968 /* 969 * LP64 user version of struct msghdr_x 970 * WARNING - keep in sync with struct msghdr_x 971 */ 972 973 struct user64_msghdr_x { 974 user64_addr_t msg_name; /* optional address */ 975 socklen_t msg_namelen; /* size of address */ 976 user64_addr_t msg_iov; /* scatter/gather array */ 977 int msg_iovlen; /* # elements in msg_iov */ 978 user64_addr_t msg_control; /* ancillary data, see below */ 979 socklen_t msg_controllen; /* ancillary data buffer len */ 980 int msg_flags; /* flags on received message */ 981 user64_size_t msg_datalen; /* byte length of buffer in msg_iov */ 982 }; 983 __CCT_DECLARE_CONSTRAINED_PTR_TYPES(struct user64_msghdr_x, user64_msghdr_x); 984 985 /* 986 * ILP32 user version of struct msghdr_x 987 * WARNING - keep in sync with struct msghdr_x 988 */ 989 990 struct user32_msghdr_x { 991 user32_addr_t msg_name; /* optional address */ 992 socklen_t msg_namelen; /* size of address */ 993 user32_addr_t msg_iov; /* scatter/gather array */ 994 int msg_iovlen; /* # elements in msg_iov */ 995 user32_addr_t msg_control; /* ancillary data, see below */ 996 socklen_t msg_controllen; /* ancillary data buffer len */ 997 int msg_flags; /* flags on received message */ 998 user32_size_t msg_datalen; /* byte length of buffer in msg_iov */ 999 }; 1000 __CCT_DECLARE_CONSTRAINED_PTR_TYPES(struct user32_msghdr_x, user32_msghdr_x); 1001 1002 /* 1003 * In-kernel representation of "struct sa_endpoints" from 1004 * userspace. Has enough precision for 32-bit or 1005 * 64-bit clients, but does not need to be packed. 1006 */ 1007 1008 struct user_sa_endpoints { 1009 unsigned int sae_srcif; /* optional source interface */ 1010 user_addr_t sae_srcaddr; /* optional source address */ 1011 socklen_t sae_srcaddrlen; /* size of source address */ 1012 user_addr_t sae_dstaddr; /* destination address */ 1013 socklen_t sae_dstaddrlen; /* size of destination address */ 1014 }; 1015 1016 /* 1017 * LP64 user version of struct sa_endpoints 1018 * WARNING - keep in sync with struct sa_endpoints 1019 */ 1020 1021 struct user64_sa_endpoints { 1022 unsigned int sae_srcif; /* optional source interface */ 1023 user64_addr_t sae_srcaddr; /* optional source address */ 1024 socklen_t sae_srcaddrlen; /* size of source address */ 1025 user64_addr_t sae_dstaddr; /* destination address */ 1026 socklen_t sae_dstaddrlen; /* size of destination address */ 1027 }; 1028 1029 /* 1030 * ILP32 user version of struct sa_endpoints 1031 * WARNING - keep in sync with struct sa_endpoints 1032 */ 1033 1034 struct user32_sa_endpoints { 1035 unsigned int sae_srcif; /* optional source interface */ 1036 user32_addr_t sae_srcaddr; /* optional source address */ 1037 socklen_t sae_srcaddrlen; /* size of source address */ 1038 user32_addr_t sae_dstaddr; /* destination address */ 1039 socklen_t sae_dstaddrlen; /* size of destination address */ 1040 }; 1041 1042 #endif /* XNU_KERNEL_PRIVATE */ 1043 1044 #define MSG_OOB 0x1 /* process out-of-band data */ 1045 #define MSG_PEEK 0x2 /* peek at incoming message */ 1046 #define MSG_DONTROUTE 0x4 /* send without using routing tables */ 1047 #define MSG_EOR 0x8 /* data completes record */ 1048 #define MSG_TRUNC 0x10 /* data discarded before delivery */ 1049 #define MSG_CTRUNC 0x20 /* control data lost before delivery */ 1050 #define MSG_WAITALL 0x40 /* wait for full request or error */ 1051 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1052 #define MSG_DONTWAIT 0x80 /* this message should be nonblocking */ 1053 #define MSG_EOF 0x100 /* data completes connection */ 1054 #ifdef __APPLE__ 1055 #ifndef PRIVATE 1056 #ifdef __APPLE_API_OBSOLETE 1057 #define MSG_WAITSTREAM 0x200 /* wait up to full request.. may return partial */ 1058 #endif 1059 #else 1060 #define MSG_WAITSTREAM 0x200 /* wait up to full request.. may return partial */ 1061 #endif 1062 #define MSG_FLUSH 0x400 /* Start of 'hold' seq; dump so_temp, deprecated */ 1063 #define MSG_HOLD 0x800 /* Hold frag in so_temp, deprecated */ 1064 #define MSG_SEND 0x1000 /* Send the packet in so_temp, deprecated */ 1065 #define MSG_HAVEMORE 0x2000 /* Data ready to be read */ 1066 #define MSG_RCVMORE 0x4000 /* Data remains in current pkt */ 1067 #endif 1068 #ifdef KERNEL_PRIVATE 1069 #define MSG_COMPAT 0x8000 /* deprecated */ 1070 #endif /* KERNEL_PRIVATE */ 1071 #define MSG_NEEDSA 0x10000 /* Fail receive if socket address cannot be allocated */ 1072 #ifdef KERNEL_PRIVATE 1073 #define MSG_NBIO 0x20000 /* FIONBIO mode, used by fifofs */ 1074 #define MSG_SKIPCFIL 0x40000 /* skip pass content filter */ 1075 #endif 1076 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1077 1078 #if __DARWIN_C_LEVEL >= 200809L 1079 #define MSG_NOSIGNAL 0x80000 /* do not generate SIGPIPE on EOF */ 1080 #endif /* __DARWIN_C_LEVEL */ 1081 1082 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1083 #ifdef KERNEL 1084 #define MSG_USEUPCALL 0x80000000 /* Inherit upcall in sock_accept */ 1085 #endif 1086 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1087 1088 /* 1089 * Header for ancillary data objects in msg_control buffer. 1090 * Used for additional information with/about a datagram 1091 * not expressible by flags. The format is a sequence 1092 * of message elements headed by cmsghdr structures. 1093 */ 1094 struct cmsghdr { 1095 socklen_t cmsg_len; /* [XSI] data byte count, including hdr */ 1096 int cmsg_level; /* [XSI] originating protocol */ 1097 int cmsg_type; /* [XSI] protocol-specific type */ 1098 /* followed by unsigned char cmsg_data[]; */ 1099 }; 1100 1101 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1102 #ifndef __APPLE__ 1103 /* 1104 * While we may have more groups than this, the cmsgcred struct must 1105 * be able to fit in an mbuf, and NGROUPS_MAX is too large to allow 1106 * this. 1107 */ 1108 #define CMGROUP_MAX 16 1109 1110 /* 1111 * Credentials structure, used to verify the identity of a peer 1112 * process that has sent us a message. This is allocated by the 1113 * peer process but filled in by the kernel. This prevents the 1114 * peer from lying about its identity. (Note that cmcred_groups[0] 1115 * is the effective GID.) 1116 */ 1117 struct cmsgcred { 1118 pid_t cmcred_pid; /* PID of sending process */ 1119 uid_t cmcred_uid; /* real UID of sending process */ 1120 uid_t cmcred_euid; /* effective UID of sending process */ 1121 gid_t cmcred_gid; /* real GID of sending process */ 1122 short cmcred_ngroups; /* number or groups */ 1123 gid_t cmcred_groups[CMGROUP_MAX]; /* groups */ 1124 }; 1125 #endif 1126 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1127 1128 /* given pointer to struct cmsghdr, return pointer to data */ 1129 #define CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 1130 __DARWIN_ALIGN32(sizeof(struct cmsghdr))) 1131 1132 /* 1133 * RFC 2292 requires to check msg_controllen, in case that the kernel returns 1134 * an empty list for some reasons. 1135 */ 1136 #define CMSG_FIRSTHDR(mhdr) \ 1137 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \ 1138 (struct cmsghdr *)(mhdr)->msg_control : \ 1139 (struct cmsghdr *)0L) 1140 1141 1142 /* 1143 * Given pointer to struct cmsghdr, return pointer to next cmsghdr 1144 * RFC 2292 says that CMSG_NXTHDR(mhdr, NULL) is equivalent to CMSG_FIRSTHDR(mhdr) 1145 */ 1146 #define CMSG_NXTHDR(mhdr, cmsg) \ 1147 ((char *)(cmsg) == (char *)0L ? CMSG_FIRSTHDR(mhdr) : \ 1148 ((((unsigned char *)(cmsg) + \ 1149 __DARWIN_ALIGN32((__uint32_t)(cmsg)->cmsg_len) + \ 1150 __DARWIN_ALIGN32(sizeof(struct cmsghdr))) > \ 1151 ((unsigned char *)(mhdr)->msg_control + \ 1152 (mhdr)->msg_controllen)) ? \ 1153 (struct cmsghdr *)0L /* NULL */ : \ 1154 (struct cmsghdr *)(void *)((unsigned char *)(cmsg) + \ 1155 __DARWIN_ALIGN32((__uint32_t)(cmsg)->cmsg_len)))) 1156 1157 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1158 /* RFC 2292 additions */ 1159 #define CMSG_SPACE(l) (__DARWIN_ALIGN32(sizeof(struct cmsghdr)) + __DARWIN_ALIGN32(l)) 1160 #define CMSG_LEN(l) (__DARWIN_ALIGN32(sizeof(struct cmsghdr)) + (l)) 1161 1162 #ifdef KERNEL 1163 #define CMSG_ALIGN(n) ((typeof(n))__DARWIN_ALIGN32(n)) 1164 #endif 1165 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1166 1167 /* "Socket"-level control message types: */ 1168 #define SCM_RIGHTS 0x01 /* access rights (array of int) */ 1169 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1170 #define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */ 1171 #define SCM_CREDS 0x03 /* process creds (struct cmsgcred) */ 1172 #define SCM_TIMESTAMP_MONOTONIC 0x04 /* timestamp (uint64_t) */ 1173 1174 #ifdef PRIVATE 1175 #define SCM_TIMESTAMP_CONTINUOUS 0x07 /* timestamp (uint64_t) */ 1176 #define SCM_MPKL_SEND_INFO 0x08 /* send info for multi-layer packet logging (struct so_mpkl_send_info) */ 1177 #define SCM_MPKL_RECV_INFO 0x09 /* receive info for multi-layer packet logging (struct so_mpkl_recv_info */ 1178 #endif /* PRIVATE */ 1179 1180 #ifdef KERNEL_PRIVATE 1181 /* 1182 * 4.3 compat sockaddr (deprecated) 1183 */ 1184 struct osockaddr { 1185 __uint16_t sa_family; /* address family */ 1186 char sa_data[14]; /* up to 14 bytes of direct address */ 1187 }; 1188 1189 /* 1190 * 4.3-compat message header (deprecated) 1191 */ 1192 struct omsghdr { 1193 void *msg_name; /* optional address */ 1194 socklen_t msg_namelen; /* size of address */ 1195 struct iovec *msg_iov; /* scatter/gather array */ 1196 int msg_iovlen; /* # elements in msg_iov */ 1197 void *msg_accrights; /* access rights sent/rcvd */ 1198 int msg_accrightslen; 1199 }; 1200 1201 #define SA(s) ((struct sockaddr *)(void *)(s)) 1202 #endif /* KERNEL_PRIVATE */ 1203 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1204 1205 /* 1206 * howto arguments for shutdown(2), specified by Posix.1g. 1207 */ 1208 #define SHUT_RD 0 /* shut down the reading side */ 1209 #define SHUT_WR 1 /* shut down the writing side */ 1210 #define SHUT_RDWR 2 /* shut down both sides */ 1211 1212 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1213 /* 1214 * sendfile(2) header/trailer struct 1215 */ 1216 struct sf_hdtr { 1217 struct iovec *headers; /* pointer to an array of header struct iovec's */ 1218 int hdr_cnt; /* number of header iovec's */ 1219 struct iovec *trailers; /* pointer to an array of trailer struct iovec's */ 1220 int trl_cnt; /* number of trailer iovec's */ 1221 }; 1222 1223 #ifdef KERNEL 1224 1225 /* In-kernel representation */ 1226 struct user_sf_hdtr { 1227 user_addr_t headers; /* pointer to an array of header struct iovec's */ 1228 int hdr_cnt; /* number of header iovec's */ 1229 user_addr_t trailers; /* pointer to an array of trailer struct iovec's */ 1230 int trl_cnt; /* number of trailer iovec's */ 1231 }; 1232 1233 /* LP64 user version of struct sf_hdtr */ 1234 struct user64_sf_hdtr { 1235 user64_addr_t headers; /* pointer to an array of header struct iovec's */ 1236 int hdr_cnt; /* number of header iovec's */ 1237 user64_addr_t trailers; /* pointer to an array of trailer struct iovec's */ 1238 int trl_cnt; /* number of trailer iovec's */ 1239 }; 1240 1241 /* ILP32 user version of struct sf_hdtr */ 1242 struct user32_sf_hdtr { 1243 user32_addr_t headers; /* pointer to an array of header struct iovec's */ 1244 int hdr_cnt; /* number of header iovec's */ 1245 user32_addr_t trailers; /* pointer to an array of trailer struct iovec's */ 1246 int trl_cnt; /* number of trailer iovec's */ 1247 }; 1248 1249 #endif /* KERNEL */ 1250 1251 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1252 1253 #ifdef PRIVATE 1254 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1255 1256 /* 1257 * Structure for SIOCGASSOCIDS 1258 */ 1259 struct so_aidreq { 1260 __uint32_t sar_cnt; /* number of associations */ 1261 sae_associd_t *sar_aidp; /* array of association IDs */ 1262 }; 1263 1264 #ifdef BSD_KERNEL_PRIVATE 1265 struct so_aidreq32 { 1266 __uint32_t sar_cnt; 1267 user32_addr_t sar_aidp; 1268 }; 1269 1270 struct so_aidreq64 { 1271 __uint32_t sar_cnt; 1272 user64_addr_t sar_aidp __attribute__((aligned(8))); 1273 }; 1274 #endif /* BSD_KERNEL_PRIVATE */ 1275 1276 /* 1277 * Structure for SIOCGCONNIDS 1278 */ 1279 struct so_cidreq { 1280 sae_associd_t scr_aid; /* association ID */ 1281 __uint32_t scr_cnt; /* number of connections */ 1282 sae_connid_t *scr_cidp; /* array of connection IDs */ 1283 }; 1284 1285 #ifdef BSD_KERNEL_PRIVATE 1286 struct so_cidreq32 { 1287 sae_associd_t scr_aid; 1288 __uint32_t scr_cnt; 1289 user32_addr_t scr_cidp; 1290 }; 1291 1292 struct so_cidreq64 { 1293 sae_associd_t scr_aid; 1294 __uint32_t scr_cnt; 1295 user64_addr_t scr_cidp __attribute__((aligned(8))); 1296 }; 1297 #endif /* BSD_KERNEL_PRIVATE */ 1298 1299 /* 1300 * Structure for SIOCGCONNINFO 1301 */ 1302 struct so_cinforeq { 1303 sae_connid_t scir_cid; /* connection ID */ 1304 __uint32_t scir_flags; /* see flags below */ 1305 __uint32_t scir_ifindex; /* (last) outbound interface */ 1306 __int32_t scir_error; /* most recent error */ 1307 struct sockaddr *scir_src; /* source address */ 1308 socklen_t scir_src_len; /* source address len */ 1309 struct sockaddr *scir_dst; /* destination address */ 1310 socklen_t scir_dst_len; /* destination address len */ 1311 __uint32_t scir_aux_type; /* aux data type (CIAUX) */ 1312 void *scir_aux_data; /* aux data */ 1313 __uint32_t scir_aux_len; /* aux data len */ 1314 }; 1315 1316 #ifdef BSD_KERNEL_PRIVATE 1317 struct so_cinforeq32 { 1318 sae_connid_t scir_cid; 1319 __uint32_t scir_flags; 1320 __uint32_t scir_ifindex; 1321 __int32_t scir_error; 1322 user32_addr_t scir_src; 1323 socklen_t scir_src_len; 1324 user32_addr_t scir_dst; 1325 socklen_t scir_dst_len; 1326 __uint32_t scir_aux_type; 1327 user32_addr_t scir_aux_data; 1328 __uint32_t scir_aux_len; 1329 }; 1330 1331 struct so_cinforeq64 { 1332 sae_connid_t scir_cid; 1333 __uint32_t scir_flags; 1334 __uint32_t scir_ifindex; 1335 __int32_t scir_error; 1336 user64_addr_t scir_src __attribute__((aligned(8))); 1337 socklen_t scir_src_len; 1338 user64_addr_t scir_dst __attribute__((aligned(8))); 1339 socklen_t scir_dst_len; 1340 __uint32_t scir_aux_type; 1341 user64_addr_t scir_aux_data __attribute__((aligned(8))); 1342 __uint32_t scir_aux_len; 1343 }; 1344 #endif /* BSD_KERNEL_PRIVATE */ 1345 1346 /* valid connection info flags */ 1347 #define CIF_CONNECTING 0x1 /* connection was attempted */ 1348 #define CIF_CONNECTED 0x2 /* connection is established */ 1349 #define CIF_DISCONNECTING 0x4 /* disconnection was attempted */ 1350 #define CIF_DISCONNECTED 0x8 /* has been disconnected */ 1351 #define CIF_BOUND_IF 0x10 /* bound to an interface */ 1352 #define CIF_BOUND_IP 0x20 /* bound to a src address */ 1353 #define CIF_BOUND_PORT 0x40 /* bound to a src port */ 1354 #define CIF_PREFERRED 0x80 /* connection is primary/preferred */ 1355 #define CIF_MP_CAPABLE 0x100 /* supports multipath protocol */ 1356 #define CIF_MP_READY 0x200 /* multipath protocol confirmed */ 1357 #define CIF_MP_DEGRADED 0x400 /* has lost its multipath capability */ 1358 #define CIF_MP_ACTIVE 0x800 /* this is the active subflow */ 1359 #define CIF_MP_V1 0x1000 /* MPTCP v1 is used */ 1360 1361 /* valid connection info auxiliary data types */ 1362 #define CIAUX_TCP 0x1 /* TCP auxiliary data (conninfo_tcp_t) */ 1363 #define CIAUX_MPTCP 0x2 /* MPTCP auxiliary data (conninfo_multipathtcp) */ 1364 1365 /* 1366 * Structure for SIOC{S,G}CONNORDER 1367 */ 1368 struct so_cordreq { 1369 sae_connid_t sco_cid; /* connection ID */ 1370 __uint32_t sco_rank; /* rank (0 means unspecified) */ 1371 }; 1372 1373 /* 1374 * Common structure for KEV_NETPOLICY_SUBCLASS 1375 */ 1376 struct netpolicy_event_data { 1377 __uint64_t eupid; /* effective unique PID */ 1378 __uint64_t epid; /* effective PID */ 1379 uuid_t euuid; /* effective UUID */ 1380 }; 1381 1382 /* 1383 * NETPOLICY_IFDENIED event structure 1384 */ 1385 struct kev_netpolicy_ifdenied { 1386 struct netpolicy_event_data ev_data; 1387 __uint32_t ev_if_functional_type; 1388 }; 1389 1390 /* 1391 * KEV_NETPOLICY_NETDENIED event structure 1392 */ 1393 struct kev_netpolicy_netdenied { 1394 struct netpolicy_event_data ev_data; 1395 __uint32_t ev_network_type; 1396 }; 1397 1398 /* 1399 * Network Service Type to DiffServ Code Point mapping 1400 */ 1401 struct netsvctype_dscp_map { 1402 int netsvctype; 1403 u_int8_t dscp; /* 6 bits diffserv code point */ 1404 }; 1405 1406 /* 1407 * Multi-layer packet logging require SO_MPK_LOG to be set 1408 */ 1409 struct so_mpkl_send_info { 1410 uuid_t mpkl_uuid; 1411 __uint8_t mpkl_proto; /* see net/multi_layer_pkt_log.h */ 1412 }; 1413 1414 struct so_mpkl_recv_info { 1415 __uint32_t mpkl_seq; 1416 __uint8_t mpkl_proto; /* see net/multi_layer_pkt_log.h */ 1417 }; 1418 1419 #ifndef KERNEL 1420 __BEGIN_DECLS 1421 1422 extern int peeloff(int s, sae_associd_t); 1423 extern int socket_delegate(int, int, int, pid_t); 1424 1425 /* 1426 * recvmsg_x() is a system call similar to recvmsg(2) to receive 1427 * several datagrams at once in the array of message headers "msgp". 1428 * 1429 * recvmsg_x() can be used only with protocols handlers that have been specially 1430 * modified to support sending and receiving several datagrams at once. 1431 * 1432 * The size of the array "msgp" is given by the argument "cnt". 1433 * 1434 * The "flags" arguments supports only the value MSG_DONTWAIT. 1435 * 1436 * Each member of "msgp" array is of type "struct msghdr_x". 1437 * 1438 * The "msg_iov" and "msg_iovlen" are input parameters that describe where to 1439 * store a datagram in a scatter gather locations of buffers -- see recvmsg(2). 1440 * On output the field "msg_datalen" gives the length of the received datagram. 1441 * 1442 * The field "msg_flags" must be set to zero on input. On output, "msg_flags" 1443 * may have MSG_TRUNC set to indicate the trailing portion of the datagram was 1444 * discarded because the datagram was larger than the buffer supplied. 1445 * recvmsg_x() returns as soon as a datagram is truncated. 1446 * 1447 * recvmsg_x() may return with less than "cnt" datagrams received based on 1448 * the low water mark and the amount of data pending in the socket buffer. 1449 * 1450 * recvmsg_x() returns the number of datagrams that have been received, 1451 * or -1 if an error occurred. 1452 * 1453 * NOTE: This a private system call, the API is subject to change. 1454 */ 1455 ssize_t recvmsg_x(int s, const struct msghdr_x *msgp, u_int cnt, int flags); 1456 1457 /* 1458 * sendmsg_x() is a system call similar to send(2) to send 1459 * several datagrams at once in the array of message headers "msgp". 1460 * 1461 * sendmsg_x() can be used only with protocols handlers that have been specially 1462 * modified to support sending and receiving several datagrams at once. 1463 * 1464 * The size of the array "msgp" is given by the argument "cnt". 1465 * 1466 * The "flags" arguments supports only the value MSG_DONTWAIT. 1467 * 1468 * Each member of "msgp" array is of type "struct msghdr_x". 1469 * 1470 * The "msg_iov" and "msg_iovlen" are input parameters that specify the 1471 * data to be sent in a scatter gather locations of buffers -- see sendmsg(2). 1472 * 1473 * sendmsg_x() fails with EMSGSIZE if the sum of the length of the datagrams 1474 * is greater than the high water mark. 1475 * 1476 * Address and ancillary data are not supported so the following fields 1477 * must be set to zero on input: 1478 * "msg_name", "msg_namelen", "msg_control" and "msg_controllen". 1479 * 1480 * The field "msg_flags" and "msg_datalen" must be set to zero on input. 1481 * 1482 * sendmsg_x() returns the number of datagrams that have been sent, 1483 * or -1 if an error occurred. 1484 * 1485 * NOTE: This a private system call, the API is subject to change. 1486 */ 1487 ssize_t sendmsg_x(int s, const struct msghdr_x *msgp, u_int cnt, int flags); 1488 __END_DECLS 1489 #endif /* !KERNEL */ 1490 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1491 #endif /* PRIVATE */ 1492 1493 #ifndef KERNEL 1494 __BEGIN_DECLS 1495 1496 int accept(int, struct sockaddr * __restrict, socklen_t * __restrict) 1497 __DARWIN_ALIAS_C(accept); 1498 int bind(int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS(bind); 1499 int connect(int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS_C(connect); 1500 int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict) 1501 __DARWIN_ALIAS(getpeername); 1502 int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict) 1503 __DARWIN_ALIAS(getsockname); 1504 int getsockopt(int, int, int, void * __restrict, socklen_t * __restrict); 1505 int listen(int, int) __DARWIN_ALIAS(listen); 1506 ssize_t recv(int, void *, size_t, int) __DARWIN_ALIAS_C(recv); 1507 ssize_t recvfrom(int, void *, size_t, int, struct sockaddr * __restrict, 1508 socklen_t * __restrict) __DARWIN_ALIAS_C(recvfrom); 1509 ssize_t recvmsg(int, struct msghdr *, int) __DARWIN_ALIAS_C(recvmsg); 1510 ssize_t send(int, const void *, size_t, int) __DARWIN_ALIAS_C(send); 1511 ssize_t sendmsg(int, const struct msghdr *, int) __DARWIN_ALIAS_C(sendmsg); 1512 ssize_t sendto(int, const void *, size_t, 1513 int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS_C(sendto); 1514 int setsockopt(int, int, int, const void *, socklen_t); 1515 int shutdown(int, int); 1516 int sockatmark(int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0); 1517 int socket(int, int, int); 1518 int socketpair(int, int, int, int *) __DARWIN_ALIAS(socketpair); 1519 1520 #if !defined(_POSIX_C_SOURCE) 1521 int sendfile(int, int, off_t, off_t *, struct sf_hdtr *, int); 1522 #endif /* !_POSIX_C_SOURCE */ 1523 1524 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 1525 void pfctlinput(int, struct sockaddr *); 1526 1527 __API_AVAILABLE(macosx(10.11), ios(9.0), tvos(9.0), watchos(2.0)) 1528 int connectx(int, const sa_endpoints_t *, sae_associd_t, unsigned int, 1529 const struct iovec *, unsigned int, size_t *, sae_connid_t *); 1530 1531 __API_AVAILABLE(macosx(10.11), ios(9.0), tvos(9.0), watchos(2.0)) 1532 int disconnectx(int, sae_associd_t, sae_connid_t); 1533 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 1534 __END_DECLS 1535 #endif /* !KERNEL */ 1536 1537 #ifdef KERNEL 1538 #include <sys/kpi_socket.h> 1539 #endif 1540 1541 #endif /* !_SYS_SOCKET_H_ */ 1542