1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)socket.h 8.4 (Berkeley) 2/21/94 32 * $FreeBSD$ 33 */ 34 35 #ifndef _COMPAT_SYS_SOCKET_H_ 36 #define _COMPAT_SYS_SOCKET_H_ 37 38 #include <sys/cdefs.h> 39 #include <sys/_types.h> 40 #include <sys/_iovec.h> 41 42 /* 43 * Definitions related to sockets: types, address families, options. 44 */ 45 46 /* 47 * Data types. 48 */ 49 #if __BSD_VISIBLE 50 #ifndef _GID_T_DECLARED 51 typedef __gid_t gid_t; 52 #define _GID_T_DECLARED 53 #endif 54 55 #ifndef _OFF_T_DECLARED 56 typedef __off_t off_t; 57 #define _OFF_T_DECLARED 58 #endif 59 60 #ifndef _PID_T_DECLARED 61 typedef __pid_t pid_t; 62 #define _PID_T_DECLARED 63 #endif 64 #endif 65 66 #ifndef _SA_FAMILY_T_DECLARED 67 typedef __sa_family_t sa_family_t; 68 #define _SA_FAMILY_T_DECLARED 69 #endif 70 71 #ifndef _SOCKLEN_T_DECLARED 72 typedef __socklen_t socklen_t; 73 #define _SOCKLEN_T_DECLARED 74 #endif 75 76 #ifndef _SSIZE_T_DECLARED 77 typedef __ssize_t ssize_t; 78 #define _SSIZE_T_DECLARED 79 #endif 80 81 #if __BSD_VISIBLE 82 #ifndef _UID_T_DECLARED 83 typedef __uid_t uid_t; 84 #define _UID_T_DECLARED 85 #endif 86 #endif 87 88 #ifndef _UINT32_T_DECLARED 89 typedef __uint32_t uint32_t; 90 #define _UINT32_T_DECLARED 91 #endif 92 93 /* 94 * Types 95 */ 96 #define SOCK_STREAM 1 /* stream socket */ 97 #define SOCK_DGRAM 2 /* datagram socket */ 98 #define SOCK_RAW 3 /* raw-protocol interface */ 99 #if __BSD_VISIBLE 100 #define SOCK_RDM 4 /* reliably-delivered message */ 101 #endif 102 #define SOCK_SEQPACKET 5 /* sequenced packet stream */ 103 104 #if __BSD_VISIBLE 105 /* 106 * Creation flags, OR'ed into socket() and socketpair() type argument. 107 */ 108 #define SOCK_CLOEXEC 0x10000000 109 #define SOCK_NONBLOCK 0x20000000 110 #ifdef _KERNEL 111 /* 112 * Flags for accept1(), kern_accept4() and solisten_dequeue, in addition 113 * to SOCK_CLOEXEC and SOCK_NONBLOCK. 114 */ 115 #define ACCEPT4_INHERIT 0x1 116 #define ACCEPT4_COMPAT 0x2 117 #endif /* _KERNEL */ 118 #endif /* __BSD_VISIBLE */ 119 120 /* 121 * Option flags per-socket. 122 */ 123 #define SO_DEBUG 0x00000001 /* turn on debugging info recording */ 124 #define SO_ACCEPTCONN 0x00000002 /* socket has had listen() */ 125 #define SO_REUSEADDR 0x00000004 /* allow local address reuse */ 126 #define SO_KEEPALIVE 0x00000008 /* keep connections alive */ 127 #define SO_DONTROUTE 0x00000010 /* just use interface addresses */ 128 #define SO_BROADCAST 0x00000020 /* permit sending of broadcast msgs */ 129 #if __BSD_VISIBLE 130 #define SO_USELOOPBACK 0x00000040 /* bypass hardware when possible */ 131 #endif 132 #define SO_LINGER 0x00000080 /* linger on close if data present */ 133 #define SO_OOBINLINE 0x00000100 /* leave received OOB data in line */ 134 #if __BSD_VISIBLE 135 #define SO_REUSEPORT 0x00000200 /* allow local address & port reuse */ 136 #define SO_TIMESTAMP 0x00000400 /* timestamp received dgram traffic */ 137 #define SO_NOSIGPIPE 0x00000800 /* no SIGPIPE from EPIPE */ 138 #define SO_ACCEPTFILTER 0x00001000 /* there is an accept filter */ 139 #define SO_BINTIME 0x00002000 /* timestamp received dgram traffic */ 140 #endif 141 #define SO_NO_OFFLOAD 0x00004000 /* socket cannot be offloaded */ 142 #define SO_NO_DDP 0x00008000 /* disable direct data placement */ 143 #define SO_REUSEPORT_LB 0x00010000 /* reuse with load balancing */ 144 145 /* 146 * Additional options, not kept in so_options. 147 */ 148 #define SO_SNDBUF 0x1001 /* send buffer size */ 149 #define SO_RCVBUF 0x1002 /* receive buffer size */ 150 #define SO_SNDLOWAT 0x1003 /* send low-water mark */ 151 #define SO_RCVLOWAT 0x1004 /* receive low-water mark */ 152 #define SO_SNDTIMEO 0x1005 /* send timeout */ 153 #define SO_RCVTIMEO 0x1006 /* receive timeout */ 154 #define SO_ERROR 0x1007 /* get error status and clear */ 155 #define SO_TYPE 0x1008 /* get socket type */ 156 #if __BSD_VISIBLE 157 #define SO_LABEL 0x1009 /* socket's MAC label */ 158 #define SO_PEERLABEL 0x1010 /* socket's peer's MAC label */ 159 #define SO_LISTENQLIMIT 0x1011 /* socket's backlog limit */ 160 #define SO_LISTENQLEN 0x1012 /* socket's complete queue length */ 161 #define SO_LISTENINCQLEN 0x1013 /* socket's incomplete queue length */ 162 #define SO_SETFIB 0x1014 /* use this FIB to route */ 163 #define SO_USER_COOKIE 0x1015 /* user cookie (dummynet etc.) */ 164 #define SO_PROTOCOL 0x1016 /* get socket protocol (Linux name) */ 165 #define SO_PROTOTYPE SO_PROTOCOL /* alias for SO_PROTOCOL (SunOS name) */ 166 #define SO_TS_CLOCK 0x1017 /* clock type used for SO_TIMESTAMP */ 167 #define SO_MAX_PACING_RATE 0x1018 /* socket's max TX pacing rate (Linux name) */ 168 #define SO_DOMAIN 0x1019 /* get socket domain */ 169 #endif 170 171 #if __BSD_VISIBLE 172 #define SO_TS_REALTIME_MICRO 0 /* microsecond resolution, realtime */ 173 #define SO_TS_BINTIME 1 /* sub-nanosecond resolution, realtime */ 174 #define SO_TS_REALTIME 2 /* nanosecond resolution, realtime */ 175 #define SO_TS_MONOTONIC 3 /* nanosecond resolution, monotonic */ 176 #define SO_TS_DEFAULT SO_TS_REALTIME_MICRO 177 #define SO_TS_CLOCK_MAX SO_TS_MONOTONIC 178 #endif 179 180 /* 181 * Space reserved for new socket options added by third-party vendors. 182 * This range applies to all socket option levels. New socket options 183 * in FreeBSD should always use an option value less than SO_VENDOR. 184 */ 185 #if __BSD_VISIBLE 186 #define SO_VENDOR 0x80000000 187 #endif 188 189 /* 190 * Structure used for manipulating linger option. 191 */ 192 struct linger { 193 int l_onoff; /* option on/off */ 194 int l_linger; /* linger time */ 195 }; 196 197 #if __BSD_VISIBLE 198 struct accept_filter_arg { 199 char af_name[16]; 200 char af_arg[256-16]; 201 }; 202 #endif 203 204 /* 205 * Level number for (get/set)sockopt() to apply to socket itself. 206 */ 207 #define SOL_SOCKET 0xffff /* options for socket level */ 208 209 /* 210 * Address families. 211 */ 212 #define AF_UNSPEC 0 /* unspecified */ 213 #if __BSD_VISIBLE 214 #define AF_LOCAL AF_UNIX /* local to host (pipes, portals) */ 215 #endif 216 #define AF_UNIX 1 /* standardized name for AF_LOCAL */ 217 #define AF_INET 2 /* internetwork: UDP, TCP, etc. */ 218 #if __BSD_VISIBLE 219 #define AF_IMPLINK 3 /* arpanet imp addresses */ 220 #define AF_PUP 4 /* pup protocols: e.g. BSP */ 221 #define AF_CHAOS 5 /* mit CHAOS protocols */ 222 #define AF_NETBIOS 6 /* SMB protocols */ 223 #define AF_ISO 7 /* ISO protocols */ 224 #define AF_OSI AF_ISO 225 #define AF_ECMA 8 /* European computer manufacturers */ 226 #define AF_DATAKIT 9 /* datakit protocols */ 227 #define AF_CCITT 10 /* CCITT protocols, X.25 etc */ 228 #define AF_SNA 11 /* IBM SNA */ 229 #define AF_DECnet 12 /* DECnet */ 230 #define AF_DLI 13 /* DEC Direct data link interface */ 231 #define AF_LAT 14 /* LAT */ 232 #define AF_HYLINK 15 /* NSC Hyperchannel */ 233 #define AF_APPLETALK 16 /* Apple Talk */ 234 #define AF_ROUTE 17 /* Internal Routing Protocol */ 235 #define AF_LINK 18 /* Link layer interface */ 236 #define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */ 237 #define AF_COIP 20 /* connection-oriented IP, aka ST II */ 238 #define AF_CNT 21 /* Computer Network Technology */ 239 #define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */ 240 #define AF_IPX 23 /* Novell Internet Protocol */ 241 #define AF_SIP 24 /* Simple Internet Protocol */ 242 #define pseudo_AF_PIP 25 /* Help Identify PIP packets */ 243 #define AF_ISDN 26 /* Integrated Services Digital Network*/ 244 #define AF_E164 AF_ISDN /* CCITT E.164 recommendation */ 245 #define pseudo_AF_KEY 27 /* Internal key-management function */ 246 #endif 247 #define AF_INET6 28 /* IPv6 */ 248 #if __BSD_VISIBLE 249 #define AF_NATM 29 /* native ATM access */ 250 #define AF_ATM 30 /* ATM */ 251 #define pseudo_AF_HDRCMPLT 31 /* Used by BPF to not rewrite headers 252 * in interface output routine 253 */ 254 #define AF_NETGRAPH 32 /* Netgraph sockets */ 255 #define AF_SLOW 33 /* 802.3ad slow protocol */ 256 #define AF_SCLUSTER 34 /* Sitara cluster protocol */ 257 #define AF_ARP 35 258 #define AF_BLUETOOTH 36 /* Bluetooth sockets */ 259 #define AF_IEEE80211 37 /* IEEE 802.11 protocol */ 260 #define AF_INET_SDP 40 /* OFED Socket Direct Protocol ipv4 */ 261 #define AF_INET6_SDP 42 /* OFED Socket Direct Protocol ipv6 */ 262 #define AF_HYPERV 43 /* HyperV sockets */ 263 #define AF_MAX 43 264 /* 265 * When allocating a new AF_ constant, please only allocate 266 * even numbered constants for FreeBSD until 134 as odd numbered AF_ 267 * constants 39-133 are now reserved for vendors. 268 */ 269 #define AF_VENDOR00 39 270 #define AF_VENDOR01 41 271 #define AF_VENDOR03 45 272 #define AF_VENDOR04 47 273 #define AF_VENDOR05 49 274 #define AF_VENDOR06 51 275 #define AF_VENDOR07 53 276 #define AF_VENDOR08 55 277 #define AF_VENDOR09 57 278 #define AF_VENDOR10 59 279 #define AF_VENDOR11 61 280 #define AF_VENDOR12 63 281 #define AF_VENDOR13 65 282 #define AF_VENDOR14 67 283 #define AF_VENDOR15 69 284 #define AF_VENDOR16 71 285 #define AF_VENDOR17 73 286 #define AF_VENDOR18 75 287 #define AF_VENDOR19 77 288 #define AF_VENDOR20 79 289 #define AF_VENDOR21 81 290 #define AF_VENDOR22 83 291 #define AF_VENDOR23 85 292 #define AF_VENDOR24 87 293 #define AF_VENDOR25 89 294 #define AF_VENDOR26 91 295 #define AF_VENDOR27 93 296 #define AF_VENDOR28 95 297 #define AF_VENDOR29 97 298 #define AF_VENDOR30 99 299 #define AF_VENDOR31 101 300 #define AF_VENDOR32 103 301 #define AF_VENDOR33 105 302 #define AF_VENDOR34 107 303 #define AF_VENDOR35 109 304 #define AF_VENDOR36 111 305 #define AF_VENDOR37 113 306 #define AF_VENDOR38 115 307 #define AF_VENDOR39 117 308 #define AF_VENDOR40 119 309 #define AF_VENDOR41 121 310 #define AF_VENDOR42 123 311 #define AF_VENDOR43 125 312 #define AF_VENDOR44 127 313 #define AF_VENDOR45 129 314 #define AF_VENDOR46 131 315 #define AF_VENDOR47 133 316 #endif 317 318 /* 319 * Structure used by kernel to store most 320 * addresses. 321 */ 322 struct sockaddr { 323 unsigned char sa_len; /* total length */ 324 sa_family_t sa_family; /* address family */ 325 char sa_data[14]; /* actually longer; address value */ 326 }; 327 #if __BSD_VISIBLE 328 #define SOCK_MAXADDRLEN 255 /* longest possible addresses */ 329 330 /* 331 * Structure used by kernel to pass protocol 332 * information in raw sockets. 333 */ 334 struct sockproto { 335 unsigned short sp_family; /* address family */ 336 unsigned short sp_protocol; /* protocol */ 337 }; 338 #endif 339 340 #include <sys/_sockaddr_storage.h> 341 342 #if __BSD_VISIBLE 343 /* 344 * Protocol families, same as address families for now. 345 */ 346 #define PF_UNSPEC AF_UNSPEC 347 #define PF_LOCAL AF_LOCAL 348 #define PF_UNIX PF_LOCAL /* backward compatibility */ 349 #define PF_INET AF_INET 350 #define PF_IMPLINK AF_IMPLINK 351 #define PF_PUP AF_PUP 352 #define PF_CHAOS AF_CHAOS 353 #define PF_NETBIOS AF_NETBIOS 354 #define PF_ISO AF_ISO 355 #define PF_OSI AF_ISO 356 #define PF_ECMA AF_ECMA 357 #define PF_DATAKIT AF_DATAKIT 358 #define PF_CCITT AF_CCITT 359 #define PF_SNA AF_SNA 360 #define PF_DECnet AF_DECnet 361 #define PF_DLI AF_DLI 362 #define PF_LAT AF_LAT 363 #define PF_HYLINK AF_HYLINK 364 #define PF_APPLETALK AF_APPLETALK 365 #define PF_ROUTE AF_ROUTE 366 #define PF_LINK AF_LINK 367 #define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */ 368 #define PF_COIP AF_COIP 369 #define PF_CNT AF_CNT 370 #define PF_SIP AF_SIP 371 #define PF_IPX AF_IPX 372 #define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */ 373 #define PF_PIP pseudo_AF_PIP 374 #define PF_ISDN AF_ISDN 375 #define PF_KEY pseudo_AF_KEY 376 #define PF_INET6 AF_INET6 377 #define PF_NATM AF_NATM 378 #define PF_ATM AF_ATM 379 #define PF_NETGRAPH AF_NETGRAPH 380 #define PF_SLOW AF_SLOW 381 #define PF_SCLUSTER AF_SCLUSTER 382 #define PF_ARP AF_ARP 383 #define PF_BLUETOOTH AF_BLUETOOTH 384 #define PF_IEEE80211 AF_IEEE80211 385 #define PF_INET_SDP AF_INET_SDP 386 #define PF_INET6_SDP AF_INET6_SDP 387 388 #define PF_MAX AF_MAX 389 390 /* 391 * Definitions for network related sysctl, CTL_NET. 392 * 393 * Second level is protocol family. 394 * Third level is protocol number. 395 * 396 * Further levels are defined by the individual families. 397 */ 398 399 /* 400 * PF_ROUTE - Routing table 401 * 402 * Three additional levels are defined: 403 * Fourth: address family, 0 is wildcard 404 * Fifth: type of info, defined below 405 * Sixth: flag(s) to mask with for NET_RT_FLAGS 406 */ 407 #define NET_RT_DUMP 1 /* dump; may limit to a.f. */ 408 #define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */ 409 #define NET_RT_IFLIST 3 /* survey interface list */ 410 #define NET_RT_IFMALIST 4 /* return multicast address list */ 411 #define NET_RT_IFLISTL 5 /* Survey interface list, using 'l'en 412 * versions of msghdr structs. */ 413 #define NET_RT_NHOP 6 /* dump routing nexthops */ 414 #define NET_RT_NHGRP 7 /* dump routing nexthop groups */ 415 #endif /* __BSD_VISIBLE */ 416 417 /* 418 * Maximum queue length specifiable by listen. 419 */ 420 #define SOMAXCONN 128 421 422 /* 423 * Message header for recvmsg and sendmsg calls. 424 * Used value-result for recvmsg, value only for sendmsg. 425 */ 426 struct msghdr { 427 void *msg_name; /* optional address */ 428 socklen_t msg_namelen; /* size of address */ 429 struct iovec *msg_iov; /* scatter/gather array */ 430 int msg_iovlen; /* # elements in msg_iov */ 431 void *msg_control; /* ancillary data, see below */ 432 socklen_t msg_controllen; /* ancillary data buffer len */ 433 int msg_flags; /* flags on received message */ 434 }; 435 436 #define MSG_OOB 0x00000001 /* process out-of-band data */ 437 #define MSG_PEEK 0x00000002 /* peek at incoming message */ 438 #define MSG_DONTROUTE 0x00000004 /* send without using routing tables */ 439 #define MSG_EOR 0x00000008 /* data completes record */ 440 #define MSG_TRUNC 0x00000010 /* data discarded before delivery */ 441 #define MSG_CTRUNC 0x00000020 /* control data lost before delivery */ 442 #define MSG_WAITALL 0x00000040 /* wait for full request or error */ 443 #if __BSD_VISIBLE 444 #define MSG_DONTWAIT 0x00000080 /* this message should be nonblocking */ 445 #define MSG_EOF 0x00000100 /* data completes connection */ 446 /* 0x00000200 unused */ 447 /* 0x00000400 unused */ 448 /* 0x00000800 unused */ 449 /* 0x00001000 unused */ 450 #define MSG_NOTIFICATION 0x00002000 /* SCTP notification */ 451 #define MSG_NBIO 0x00004000 /* FIONBIO mode, used by fifofs */ 452 #define MSG_COMPAT 0x00008000 /* used in sendit() */ 453 #endif 454 #ifdef _KERNEL 455 #define MSG_SOCALLBCK 0x00010000 /* for use by socket callbacks - soreceive (TCP) */ 456 #endif 457 #if __POSIX_VISIBLE >= 200809 458 #define MSG_NOSIGNAL 0x00020000 /* do not generate SIGPIPE on EOF */ 459 #endif 460 #if __BSD_VISIBLE 461 #define MSG_CMSG_CLOEXEC 0x00040000 /* make received fds close-on-exec */ 462 #define MSG_WAITFORONE 0x00080000 /* for recvmmsg() */ 463 #endif 464 #ifdef _KERNEL 465 #define MSG_MORETOCOME 0x00100000 /* additional data pending */ 466 #define MSG_TLSAPPDATA 0x00200000 /* only soreceive() app. data (TLS) */ 467 #endif 468 469 /* 470 * Header for ancillary data objects in msg_control buffer. 471 * Used for additional information with/about a datagram 472 * not expressible by flags. The format is a sequence 473 * of message elements headed by cmsghdr structures. 474 */ 475 struct cmsghdr { 476 socklen_t cmsg_len; /* data byte count, including hdr */ 477 int cmsg_level; /* originating protocol */ 478 int cmsg_type; /* protocol-specific type */ 479 /* followed by u_char cmsg_data[]; */ 480 }; 481 482 #if __BSD_VISIBLE 483 /* 484 * While we may have more groups than this, the cmsgcred struct must 485 * be able to fit in an mbuf and we have historically supported a 486 * maximum of 16 groups. 487 */ 488 #define CMGROUP_MAX 16 489 490 /* 491 * Credentials structure, used to verify the identity of a peer 492 * process that has sent us a message. This is allocated by the 493 * peer process but filled in by the kernel. This prevents the 494 * peer from lying about its identity. (Note that cmcred_groups[0] 495 * is the effective GID.) 496 */ 497 struct cmsgcred { 498 pid_t cmcred_pid; /* PID of sending process */ 499 uid_t cmcred_uid; /* real UID of sending process */ 500 uid_t cmcred_euid; /* effective UID of sending process */ 501 gid_t cmcred_gid; /* real GID of sending process */ 502 short cmcred_ngroups; /* number or groups */ 503 gid_t cmcred_groups[CMGROUP_MAX]; /* groups */ 504 }; 505 506 /* 507 * Socket credentials (LOCAL_CREDS). 508 */ 509 struct sockcred { 510 uid_t sc_uid; /* real user id */ 511 uid_t sc_euid; /* effective user id */ 512 gid_t sc_gid; /* real group id */ 513 gid_t sc_egid; /* effective group id */ 514 int sc_ngroups; /* number of supplemental groups */ 515 gid_t sc_groups[1]; /* variable length */ 516 }; 517 518 /* 519 * Compute size of a sockcred structure with groups. 520 */ 521 #define SOCKCREDSIZE(ngrps) \ 522 (sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1))) 523 524 /* 525 * Socket credentials (LOCAL_CREDS_PERSISTENT). 526 */ 527 struct sockcred2 { 528 int sc_version; /* version of this structure */ 529 pid_t sc_pid; /* PID of sending process */ 530 uid_t sc_uid; /* real user id */ 531 uid_t sc_euid; /* effective user id */ 532 gid_t sc_gid; /* real group id */ 533 gid_t sc_egid; /* effective group id */ 534 int sc_ngroups; /* number of supplemental groups */ 535 gid_t sc_groups[1]; /* variable length */ 536 }; 537 #define SOCKCRED2SIZE(ngrps) \ 538 (sizeof(struct sockcred2) + (sizeof(gid_t) * ((ngrps) - 1))) 539 540 #endif /* __BSD_VISIBLE */ 541 542 /* given pointer to struct cmsghdr, return pointer to data */ 543 #define CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 544 _ALIGN(sizeof(struct cmsghdr))) 545 546 /* given pointer to struct cmsghdr, return pointer to next cmsghdr */ 547 #define CMSG_NXTHDR(mhdr, cmsg) \ 548 ((char *)(cmsg) == (char *)0 ? CMSG_FIRSTHDR(mhdr) : \ 549 ((char *)(cmsg) + _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len) + \ 550 _ALIGN(sizeof(struct cmsghdr)) > \ 551 (char *)(mhdr)->msg_control + (mhdr)->msg_controllen) ? \ 552 (struct cmsghdr *)0 : \ 553 (struct cmsghdr *)(void *)((char *)(cmsg) + \ 554 _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len))) 555 556 /* 557 * RFC 2292 requires to check msg_controllen, in case that the kernel returns 558 * an empty list for some reasons. 559 */ 560 #define CMSG_FIRSTHDR(mhdr) \ 561 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \ 562 (struct cmsghdr *)(mhdr)->msg_control : \ 563 (struct cmsghdr *)0) 564 565 #if __BSD_VISIBLE 566 /* RFC 2292 additions */ 567 #define CMSG_SPACE(l) (_ALIGN(sizeof(struct cmsghdr)) + _ALIGN(l)) 568 #define CMSG_LEN(l) (_ALIGN(sizeof(struct cmsghdr)) + (l)) 569 #endif 570 571 #ifdef _KERNEL 572 #define CMSG_ALIGN(n) _ALIGN(n) 573 #endif 574 575 /* "Socket"-level control message types: */ 576 #define SCM_RIGHTS 0x01 /* access rights (array of int) */ 577 #if __BSD_VISIBLE 578 #define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */ 579 #define SCM_CREDS 0x03 /* process creds (struct cmsgcred) */ 580 #define SCM_BINTIME 0x04 /* timestamp (struct bintime) */ 581 #define SCM_REALTIME 0x05 /* timestamp (struct timespec) */ 582 #define SCM_MONOTONIC 0x06 /* timestamp (struct timespec) */ 583 #define SCM_TIME_INFO 0x07 /* timestamp info */ 584 #define SCM_CREDS2 0x08 /* process creds (struct sockcred2) */ 585 586 struct sock_timestamp_info { 587 __uint32_t st_info_flags; 588 __uint32_t st_info_pad0; 589 __uint64_t st_info_rsv[7]; 590 }; 591 592 #define ST_INFO_HW 0x0001 /* SCM_TIMESTAMP was hw */ 593 #define ST_INFO_HW_HPREC 0x0002 /* SCM_TIMESTAMP was hw-assisted 594 on entrance */ 595 #endif 596 597 #if __BSD_VISIBLE 598 /* 599 * 4.3 compat sockaddr, move to compat file later 600 */ 601 struct osockaddr { 602 unsigned short sa_family; /* address family */ 603 char sa_data[14]; /* up to 14 bytes of direct address */ 604 }; 605 606 /* 607 * 4.3-compat message header (move to compat file later). 608 */ 609 struct omsghdr { 610 char *msg_name; /* optional address */ 611 int msg_namelen; /* size of address */ 612 struct iovec *msg_iov; /* scatter/gather array */ 613 int msg_iovlen; /* # elements in msg_iov */ 614 char *msg_accrights; /* access rights sent/received */ 615 int msg_accrightslen; 616 }; 617 #endif 618 619 /* 620 * howto arguments for shutdown(2), specified by Posix.1g. 621 */ 622 #define SHUT_RD 0 /* shut down the reading side */ 623 #define SHUT_WR 1 /* shut down the writing side */ 624 #define SHUT_RDWR 2 /* shut down both sides */ 625 626 #if __BSD_VISIBLE 627 /* for SCTP */ 628 /* we cheat and use the SHUT_XX defines for these */ 629 #define PRU_FLUSH_RD SHUT_RD 630 #define PRU_FLUSH_WR SHUT_WR 631 #define PRU_FLUSH_RDWR SHUT_RDWR 632 #endif 633 634 #if __BSD_VISIBLE 635 /* 636 * sendfile(2) header/trailer struct 637 */ 638 struct sf_hdtr { 639 struct iovec *headers; /* pointer to an array of header struct iovec's */ 640 int hdr_cnt; /* number of header iovec's */ 641 struct iovec *trailers; /* pointer to an array of trailer struct iovec's */ 642 int trl_cnt; /* number of trailer iovec's */ 643 }; 644 645 /* 646 * Sendfile-specific flag(s) 647 */ 648 #define SF_NODISKIO 0x00000001 649 #define SF_MNOWAIT 0x00000002 /* obsolete */ 650 #define SF_SYNC 0x00000004 651 #define SF_USER_READAHEAD 0x00000008 652 #define SF_NOCACHE 0x00000010 653 #define SF_FLAGS(rh, flags) (((rh) << 16) | (flags)) 654 655 #ifdef _KERNEL 656 #define SF_READAHEAD(flags) ((flags) >> 16) 657 #endif /* _KERNEL */ 658 659 /* 660 * Sendmmsg/recvmmsg specific structure(s) 661 */ 662 struct mmsghdr { 663 struct msghdr msg_hdr; /* message header */ 664 ssize_t msg_len; /* message length */ 665 }; 666 #endif /* __BSD_VISIBLE */ 667 668 #ifndef _KERNEL 669 670 #include <sys/cdefs.h> 671 672 __BEGIN_DECLS 673 int accept(int, struct sockaddr * __restrict, socklen_t * __restrict); 674 int bind(int, const struct sockaddr *, socklen_t); 675 int connect(int, const struct sockaddr *, socklen_t); 676 #if __BSD_VISIBLE 677 int accept4(int, struct sockaddr * __restrict, socklen_t * __restrict, int); 678 int bindat(int, int, const struct sockaddr *, socklen_t); 679 int connectat(int, int, const struct sockaddr *, socklen_t); 680 #endif 681 int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict); 682 int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict); 683 int getsockopt(int, int, int, void * __restrict, socklen_t * __restrict); 684 int listen(int, int); 685 ssize_t recv(int, void *, size_t, int); 686 ssize_t recvfrom(int, void *, size_t, int, struct sockaddr * __restrict, socklen_t * __restrict); 687 ssize_t recvmsg(int, struct msghdr *, int); 688 #if __BSD_VISIBLE 689 struct timespec; 690 ssize_t recvmmsg(int, struct mmsghdr * __restrict, size_t, int, 691 const struct timespec * __restrict); 692 #endif 693 ssize_t send(int, const void *, size_t, int); 694 ssize_t sendto(int, const void *, 695 size_t, int, const struct sockaddr *, socklen_t); 696 ssize_t sendmsg(int, const struct msghdr *, int); 697 #if __BSD_VISIBLE 698 int sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int); 699 ssize_t sendmmsg(int, struct mmsghdr * __restrict, size_t, int); 700 int setfib(int); 701 #endif 702 int setsockopt(int, int, int, const void *, socklen_t); 703 int shutdown(int, int); 704 int sockatmark(int); 705 int socket(int, int, int); 706 int socketpair(int, int, int, int *); 707 __END_DECLS 708 709 #endif /* !_KERNEL */ 710 711 #endif /* !_COMPAT_SYS_SOCKET_H_ */ 712