socket.h revision 330897
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 * 4. 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: stable/11/sys/sys/socket.h 330897 2018-03-14 03:19:51Z eadler $ 33 */ 34 35#ifndef _SYS_SOCKET_H_ 36#define _SYS_SOCKET_H_ 37 38#include <sys/cdefs.h> 39#include <sys/_types.h> 40#include <sys/_iovec.h> 41#include <machine/_align.h> 42 43/* 44 * Definitions related to sockets: types, address families, options. 45 */ 46 47/* 48 * Data types. 49 */ 50#if __BSD_VISIBLE 51#ifndef _GID_T_DECLARED 52typedef __gid_t gid_t; 53#define _GID_T_DECLARED 54#endif 55 56#ifndef _OFF_T_DECLARED 57typedef __off_t off_t; 58#define _OFF_T_DECLARED 59#endif 60 61#ifndef _PID_T_DECLARED 62typedef __pid_t pid_t; 63#define _PID_T_DECLARED 64#endif 65#endif 66 67#ifndef _SA_FAMILY_T_DECLARED 68typedef __sa_family_t sa_family_t; 69#define _SA_FAMILY_T_DECLARED 70#endif 71 72#ifndef _SOCKLEN_T_DECLARED 73typedef __socklen_t socklen_t; 74#define _SOCKLEN_T_DECLARED 75#endif 76 77#ifndef _SSIZE_T_DECLARED 78typedef __ssize_t ssize_t; 79#define _SSIZE_T_DECLARED 80#endif 81 82#if __BSD_VISIBLE 83#ifndef _UID_T_DECLARED 84typedef __uid_t uid_t; 85#define _UID_T_DECLARED 86#endif 87#endif 88 89#ifndef _UINT32_T_DECLARED 90typedef __uint32_t uint32_t; 91#define _UINT32_T_DECLARED 92#endif 93 94#ifndef _UINTPTR_T_DECLARED 95typedef __uintptr_t uintptr_t; 96#define _UINTPTR_T_DECLARED 97#endif 98 99/* 100 * Types 101 */ 102#define SOCK_STREAM 1 /* stream socket */ 103#define SOCK_DGRAM 2 /* datagram socket */ 104#define SOCK_RAW 3 /* raw-protocol interface */ 105#if __BSD_VISIBLE 106#define SOCK_RDM 4 /* reliably-delivered message */ 107#endif 108#define SOCK_SEQPACKET 5 /* sequenced packet stream */ 109 110#if __BSD_VISIBLE 111/* 112 * Creation flags, OR'ed into socket() and socketpair() type argument. 113 */ 114#define SOCK_CLOEXEC 0x10000000 115#define SOCK_NONBLOCK 0x20000000 116#endif 117 118/* 119 * Option flags per-socket. 120 */ 121#define SO_DEBUG 0x0001 /* turn on debugging info recording */ 122#define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ 123#define SO_REUSEADDR 0x0004 /* allow local address reuse */ 124#define SO_KEEPALIVE 0x0008 /* keep connections alive */ 125#define SO_DONTROUTE 0x0010 /* just use interface addresses */ 126#define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */ 127#if __BSD_VISIBLE 128#define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */ 129#endif 130#define SO_LINGER 0x0080 /* linger on close if data present */ 131#define SO_OOBINLINE 0x0100 /* leave received OOB data in line */ 132#if __BSD_VISIBLE 133#define SO_REUSEPORT 0x0200 /* allow local address & port reuse */ 134#define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */ 135#define SO_NOSIGPIPE 0x0800 /* no SIGPIPE from EPIPE */ 136#define SO_ACCEPTFILTER 0x1000 /* there is an accept filter */ 137#define SO_BINTIME 0x2000 /* timestamp received dgram traffic */ 138#endif 139#define SO_NO_OFFLOAD 0x4000 /* socket cannot be offloaded */ 140#define SO_NO_DDP 0x8000 /* disable direct data placement */ 141 142/* 143 * Additional options, not kept in so_options. 144 */ 145#define SO_SNDBUF 0x1001 /* send buffer size */ 146#define SO_RCVBUF 0x1002 /* receive buffer size */ 147#define SO_SNDLOWAT 0x1003 /* send low-water mark */ 148#define SO_RCVLOWAT 0x1004 /* receive low-water mark */ 149#define SO_SNDTIMEO 0x1005 /* send timeout */ 150#define SO_RCVTIMEO 0x1006 /* receive timeout */ 151#define SO_ERROR 0x1007 /* get error status and clear */ 152#define SO_TYPE 0x1008 /* get socket type */ 153#if __BSD_VISIBLE 154#define SO_LABEL 0x1009 /* socket's MAC label */ 155#define SO_PEERLABEL 0x1010 /* socket's peer's MAC label */ 156#define SO_LISTENQLIMIT 0x1011 /* socket's backlog limit */ 157#define SO_LISTENQLEN 0x1012 /* socket's complete queue length */ 158#define SO_LISTENINCQLEN 0x1013 /* socket's incomplete queue length */ 159#define SO_SETFIB 0x1014 /* use this FIB to route */ 160#define SO_USER_COOKIE 0x1015 /* user cookie (dummynet etc.) */ 161#define SO_PROTOCOL 0x1016 /* get socket protocol (Linux name) */ 162#define SO_PROTOTYPE SO_PROTOCOL /* alias for SO_PROTOCOL (SunOS name) */ 163#endif 164 165/* 166 * Space reserved for new socket options added by third-party vendors. 167 * This range applies to all socket option levels. New socket options 168 * in FreeBSD should always use an option value less than SO_VENDOR. 169 */ 170#if __BSD_VISIBLE 171#define SO_VENDOR 0x80000000 172#endif 173 174/* 175 * Structure used for manipulating linger option. 176 */ 177struct linger { 178 int l_onoff; /* option on/off */ 179 int l_linger; /* linger time */ 180}; 181 182#if __BSD_VISIBLE 183struct accept_filter_arg { 184 char af_name[16]; 185 char af_arg[256-16]; 186}; 187#endif 188 189/* 190 * Level number for (get/set)sockopt() to apply to socket itself. 191 */ 192#define SOL_SOCKET 0xffff /* options for socket level */ 193 194/* 195 * Address families. 196 */ 197#define AF_UNSPEC 0 /* unspecified */ 198#if __BSD_VISIBLE 199#define AF_LOCAL AF_UNIX /* local to host (pipes, portals) */ 200#endif 201#define AF_UNIX 1 /* standardized name for AF_LOCAL */ 202#define AF_INET 2 /* internetwork: UDP, TCP, etc. */ 203#if __BSD_VISIBLE 204#define AF_IMPLINK 3 /* arpanet imp addresses */ 205#define AF_PUP 4 /* pup protocols: e.g. BSP */ 206#define AF_CHAOS 5 /* mit CHAOS protocols */ 207#define AF_NETBIOS 6 /* SMB protocols */ 208#define AF_ISO 7 /* ISO protocols */ 209#define AF_OSI AF_ISO 210#define AF_ECMA 8 /* European computer manufacturers */ 211#define AF_DATAKIT 9 /* datakit protocols */ 212#define AF_CCITT 10 /* CCITT protocols, X.25 etc */ 213#define AF_SNA 11 /* IBM SNA */ 214#define AF_DECnet 12 /* DECnet */ 215#define AF_DLI 13 /* DEC Direct data link interface */ 216#define AF_LAT 14 /* LAT */ 217#define AF_HYLINK 15 /* NSC Hyperchannel */ 218#define AF_APPLETALK 16 /* Apple Talk */ 219#define AF_ROUTE 17 /* Internal Routing Protocol */ 220#define AF_LINK 18 /* Link layer interface */ 221#define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */ 222#define AF_COIP 20 /* connection-oriented IP, aka ST II */ 223#define AF_CNT 21 /* Computer Network Technology */ 224#define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */ 225#define AF_IPX 23 /* Novell Internet Protocol */ 226#define AF_SIP 24 /* Simple Internet Protocol */ 227#define pseudo_AF_PIP 25 /* Help Identify PIP packets */ 228#define AF_ISDN 26 /* Integrated Services Digital Network*/ 229#define AF_E164 AF_ISDN /* CCITT E.164 recommendation */ 230#define pseudo_AF_KEY 27 /* Internal key-management function */ 231#endif 232#define AF_INET6 28 /* IPv6 */ 233#if __BSD_VISIBLE 234#define AF_NATM 29 /* native ATM access */ 235#define AF_ATM 30 /* ATM */ 236#define pseudo_AF_HDRCMPLT 31 /* Used by BPF to not rewrite headers 237 * in interface output routine 238 */ 239#define AF_NETGRAPH 32 /* Netgraph sockets */ 240#define AF_SLOW 33 /* 802.3ad slow protocol */ 241#define AF_SCLUSTER 34 /* Sitara cluster protocol */ 242#define AF_ARP 35 243#define AF_BLUETOOTH 36 /* Bluetooth sockets */ 244#define AF_IEEE80211 37 /* IEEE 802.11 protocol */ 245#define AF_INET_SDP 40 /* OFED Socket Direct Protocol ipv4 */ 246#define AF_INET6_SDP 42 /* OFED Socket Direct Protocol ipv6 */ 247#define AF_MAX 42 248/* 249 * When allocating a new AF_ constant, please only allocate 250 * even numbered constants for FreeBSD until 134 as odd numbered AF_ 251 * constants 39-133 are now reserved for vendors. 252 */ 253#define AF_VENDOR00 39 254#define AF_VENDOR01 41 255#define AF_VENDOR02 43 256#define AF_VENDOR03 45 257#define AF_VENDOR04 47 258#define AF_VENDOR05 49 259#define AF_VENDOR06 51 260#define AF_VENDOR07 53 261#define AF_VENDOR08 55 262#define AF_VENDOR09 57 263#define AF_VENDOR10 59 264#define AF_VENDOR11 61 265#define AF_VENDOR12 63 266#define AF_VENDOR13 65 267#define AF_VENDOR14 67 268#define AF_VENDOR15 69 269#define AF_VENDOR16 71 270#define AF_VENDOR17 73 271#define AF_VENDOR18 75 272#define AF_VENDOR19 77 273#define AF_VENDOR20 79 274#define AF_VENDOR21 81 275#define AF_VENDOR22 83 276#define AF_VENDOR23 85 277#define AF_VENDOR24 87 278#define AF_VENDOR25 89 279#define AF_VENDOR26 91 280#define AF_VENDOR27 93 281#define AF_VENDOR28 95 282#define AF_VENDOR29 97 283#define AF_VENDOR30 99 284#define AF_VENDOR31 101 285#define AF_VENDOR32 103 286#define AF_VENDOR33 105 287#define AF_VENDOR34 107 288#define AF_VENDOR35 109 289#define AF_VENDOR36 111 290#define AF_VENDOR37 113 291#define AF_VENDOR38 115 292#define AF_VENDOR39 117 293#define AF_VENDOR40 119 294#define AF_VENDOR41 121 295#define AF_VENDOR42 123 296#define AF_VENDOR43 125 297#define AF_VENDOR44 127 298#define AF_VENDOR45 129 299#define AF_VENDOR46 131 300#define AF_VENDOR47 133 301#endif 302 303/* 304 * Structure used by kernel to store most 305 * addresses. 306 */ 307struct sockaddr { 308 unsigned char sa_len; /* total length */ 309 sa_family_t sa_family; /* address family */ 310 char sa_data[14]; /* actually longer; address value */ 311}; 312#if __BSD_VISIBLE 313#define SOCK_MAXADDRLEN 255 /* longest possible addresses */ 314 315/* 316 * Structure used by kernel to pass protocol 317 * information in raw sockets. 318 */ 319struct sockproto { 320 unsigned short sp_family; /* address family */ 321 unsigned short sp_protocol; /* protocol */ 322}; 323#endif 324 325#include <sys/_sockaddr_storage.h> 326 327#if __BSD_VISIBLE 328/* 329 * Protocol families, same as address families for now. 330 */ 331#define PF_UNSPEC AF_UNSPEC 332#define PF_LOCAL AF_LOCAL 333#define PF_UNIX PF_LOCAL /* backward compatibility */ 334#define PF_INET AF_INET 335#define PF_IMPLINK AF_IMPLINK 336#define PF_PUP AF_PUP 337#define PF_CHAOS AF_CHAOS 338#define PF_NETBIOS AF_NETBIOS 339#define PF_ISO AF_ISO 340#define PF_OSI AF_ISO 341#define PF_ECMA AF_ECMA 342#define PF_DATAKIT AF_DATAKIT 343#define PF_CCITT AF_CCITT 344#define PF_SNA AF_SNA 345#define PF_DECnet AF_DECnet 346#define PF_DLI AF_DLI 347#define PF_LAT AF_LAT 348#define PF_HYLINK AF_HYLINK 349#define PF_APPLETALK AF_APPLETALK 350#define PF_ROUTE AF_ROUTE 351#define PF_LINK AF_LINK 352#define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */ 353#define PF_COIP AF_COIP 354#define PF_CNT AF_CNT 355#define PF_SIP AF_SIP 356#define PF_IPX AF_IPX 357#define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */ 358#define PF_PIP pseudo_AF_PIP 359#define PF_ISDN AF_ISDN 360#define PF_KEY pseudo_AF_KEY 361#define PF_INET6 AF_INET6 362#define PF_NATM AF_NATM 363#define PF_ATM AF_ATM 364#define PF_NETGRAPH AF_NETGRAPH 365#define PF_SLOW AF_SLOW 366#define PF_SCLUSTER AF_SCLUSTER 367#define PF_ARP AF_ARP 368#define PF_BLUETOOTH AF_BLUETOOTH 369#define PF_IEEE80211 AF_IEEE80211 370#define PF_INET_SDP AF_INET_SDP 371#define PF_INET6_SDP AF_INET6_SDP 372 373#define PF_MAX AF_MAX 374 375/* 376 * Definitions for network related sysctl, CTL_NET. 377 * 378 * Second level is protocol family. 379 * Third level is protocol number. 380 * 381 * Further levels are defined by the individual families. 382 */ 383 384/* 385 * PF_ROUTE - Routing table 386 * 387 * Three additional levels are defined: 388 * Fourth: address family, 0 is wildcard 389 * Fifth: type of info, defined below 390 * Sixth: flag(s) to mask with for NET_RT_FLAGS 391 */ 392#define NET_RT_DUMP 1 /* dump; may limit to a.f. */ 393#define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */ 394#define NET_RT_IFLIST 3 /* survey interface list */ 395#define NET_RT_IFMALIST 4 /* return multicast address list */ 396#define NET_RT_IFLISTL 5 /* Survey interface list, using 'l'en 397 * versions of msghdr structs. */ 398#endif /* __BSD_VISIBLE */ 399 400/* 401 * Maximum queue length specifiable by listen. 402 */ 403#define SOMAXCONN 128 404 405/* 406 * Message header for recvmsg and sendmsg calls. 407 * Used value-result for recvmsg, value only for sendmsg. 408 */ 409struct msghdr { 410 void *msg_name; /* optional address */ 411 socklen_t msg_namelen; /* size of address */ 412 struct iovec *msg_iov; /* scatter/gather array */ 413 int msg_iovlen; /* # elements in msg_iov */ 414 void *msg_control; /* ancillary data, see below */ 415 socklen_t msg_controllen; /* ancillary data buffer len */ 416 int msg_flags; /* flags on received message */ 417}; 418 419#define MSG_OOB 0x1 /* process out-of-band data */ 420#define MSG_PEEK 0x2 /* peek at incoming message */ 421#define MSG_DONTROUTE 0x4 /* send without using routing tables */ 422#define MSG_EOR 0x8 /* data completes record */ 423#define MSG_TRUNC 0x10 /* data discarded before delivery */ 424#define MSG_CTRUNC 0x20 /* control data lost before delivery */ 425#define MSG_WAITALL 0x40 /* wait for full request or error */ 426#if __POSIX_VISIBLE >= 200809 427#define MSG_NOSIGNAL 0x20000 /* do not generate SIGPIPE on EOF */ 428#endif 429#if __BSD_VISIBLE 430#define MSG_DONTWAIT 0x80 /* this message should be nonblocking */ 431#define MSG_EOF 0x100 /* data completes connection */ 432#define MSG_NOTIFICATION 0x2000 /* SCTP notification */ 433#define MSG_NBIO 0x4000 /* FIONBIO mode, used by fifofs */ 434#define MSG_COMPAT 0x8000 /* used in sendit() */ 435#define MSG_CMSG_CLOEXEC 0x40000 /* make received fds close-on-exec */ 436#define MSG_WAITFORONE 0x80000 /* for recvmmsg() */ 437#endif 438#ifdef _KERNEL 439#define MSG_SOCALLBCK 0x10000 /* for use by socket callbacks - soreceive (TCP) */ 440#define MSG_MORETOCOME 0x100000 /* additional data pending */ 441#endif 442 443/* 444 * Header for ancillary data objects in msg_control buffer. 445 * Used for additional information with/about a datagram 446 * not expressible by flags. The format is a sequence 447 * of message elements headed by cmsghdr structures. 448 */ 449struct cmsghdr { 450 socklen_t cmsg_len; /* data byte count, including hdr */ 451 int cmsg_level; /* originating protocol */ 452 int cmsg_type; /* protocol-specific type */ 453/* followed by u_char cmsg_data[]; */ 454}; 455 456#if __BSD_VISIBLE 457/* 458 * While we may have more groups than this, the cmsgcred struct must 459 * be able to fit in an mbuf and we have historically supported a 460 * maximum of 16 groups. 461*/ 462#define CMGROUP_MAX 16 463 464/* 465 * Credentials structure, used to verify the identity of a peer 466 * process that has sent us a message. This is allocated by the 467 * peer process but filled in by the kernel. This prevents the 468 * peer from lying about its identity. (Note that cmcred_groups[0] 469 * is the effective GID.) 470 */ 471struct cmsgcred { 472 pid_t cmcred_pid; /* PID of sending process */ 473 uid_t cmcred_uid; /* real UID of sending process */ 474 uid_t cmcred_euid; /* effective UID of sending process */ 475 gid_t cmcred_gid; /* real GID of sending process */ 476 short cmcred_ngroups; /* number or groups */ 477 gid_t cmcred_groups[CMGROUP_MAX]; /* groups */ 478}; 479 480/* 481 * Socket credentials. 482 */ 483struct sockcred { 484 uid_t sc_uid; /* real user id */ 485 uid_t sc_euid; /* effective user id */ 486 gid_t sc_gid; /* real group id */ 487 gid_t sc_egid; /* effective group id */ 488 int sc_ngroups; /* number of supplemental groups */ 489 gid_t sc_groups[1]; /* variable length */ 490}; 491 492/* 493 * Compute size of a sockcred structure with groups. 494 */ 495#define SOCKCREDSIZE(ngrps) \ 496 (sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1))) 497 498#endif /* __BSD_VISIBLE */ 499 500/* given pointer to struct cmsghdr, return pointer to data */ 501#define CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 502 _ALIGN(sizeof(struct cmsghdr))) 503 504/* given pointer to struct cmsghdr, return pointer to next cmsghdr */ 505#define CMSG_NXTHDR(mhdr, cmsg) \ 506 ((char *)(cmsg) == (char *)0 ? CMSG_FIRSTHDR(mhdr) : \ 507 ((char *)(cmsg) + _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len) + \ 508 _ALIGN(sizeof(struct cmsghdr)) > \ 509 (char *)(mhdr)->msg_control + (mhdr)->msg_controllen) ? \ 510 (struct cmsghdr *)0 : \ 511 (struct cmsghdr *)(void *)((char *)(cmsg) + \ 512 _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len))) 513 514/* 515 * RFC 2292 requires to check msg_controllen, in case that the kernel returns 516 * an empty list for some reasons. 517 */ 518#define CMSG_FIRSTHDR(mhdr) \ 519 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \ 520 (struct cmsghdr *)(mhdr)->msg_control : \ 521 (struct cmsghdr *)0) 522 523#if __BSD_VISIBLE 524/* RFC 2292 additions */ 525#define CMSG_SPACE(l) (_ALIGN(sizeof(struct cmsghdr)) + _ALIGN(l)) 526#define CMSG_LEN(l) (_ALIGN(sizeof(struct cmsghdr)) + (l)) 527#endif 528 529#ifdef _KERNEL 530#define CMSG_ALIGN(n) _ALIGN(n) 531#endif 532 533/* "Socket"-level control message types: */ 534#define SCM_RIGHTS 0x01 /* access rights (array of int) */ 535#if __BSD_VISIBLE 536#define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */ 537#define SCM_CREDS 0x03 /* process creds (struct cmsgcred) */ 538#define SCM_BINTIME 0x04 /* timestamp (struct bintime) */ 539#endif 540 541#if __BSD_VISIBLE 542/* 543 * 4.3 compat sockaddr, move to compat file later 544 */ 545struct osockaddr { 546 unsigned short sa_family; /* address family */ 547 char sa_data[14]; /* up to 14 bytes of direct address */ 548}; 549 550/* 551 * 4.3-compat message header (move to compat file later). 552 */ 553struct omsghdr { 554 char *msg_name; /* optional address */ 555 int msg_namelen; /* size of address */ 556 struct iovec *msg_iov; /* scatter/gather array */ 557 int msg_iovlen; /* # elements in msg_iov */ 558 char *msg_accrights; /* access rights sent/received */ 559 int msg_accrightslen; 560}; 561#endif 562 563/* 564 * howto arguments for shutdown(2), specified by Posix.1g. 565 */ 566#define SHUT_RD 0 /* shut down the reading side */ 567#define SHUT_WR 1 /* shut down the writing side */ 568#define SHUT_RDWR 2 /* shut down both sides */ 569 570#if __BSD_VISIBLE 571/* for SCTP */ 572/* we cheat and use the SHUT_XX defines for these */ 573#define PRU_FLUSH_RD SHUT_RD 574#define PRU_FLUSH_WR SHUT_WR 575#define PRU_FLUSH_RDWR SHUT_RDWR 576#endif 577 578 579#if __BSD_VISIBLE 580/* 581 * sendfile(2) header/trailer struct 582 */ 583struct sf_hdtr { 584 struct iovec *headers; /* pointer to an array of header struct iovec's */ 585 int hdr_cnt; /* number of header iovec's */ 586 struct iovec *trailers; /* pointer to an array of trailer struct iovec's */ 587 int trl_cnt; /* number of trailer iovec's */ 588}; 589 590/* 591 * Sendfile-specific flag(s) 592 */ 593#define SF_NODISKIO 0x00000001 594#define SF_MNOWAIT 0x00000002 /* obsolete */ 595#define SF_SYNC 0x00000004 596#define SF_NOCACHE 0x00000010 597#define SF_FLAGS(rh, flags) (((rh) << 16) | (flags)) 598 599#ifdef _KERNEL 600#define SF_READAHEAD(flags) ((flags) >> 16) 601#endif /* _KERNEL */ 602 603/* 604 * Sendmmsg/recvmmsg specific structure(s) 605 */ 606struct mmsghdr { 607 struct msghdr msg_hdr; /* message header */ 608 ssize_t msg_len; /* message length */ 609}; 610#endif /* __BSD_VISIBLE */ 611 612#ifndef _KERNEL 613 614#include <sys/cdefs.h> 615 616__BEGIN_DECLS 617int accept(int, struct sockaddr * __restrict, socklen_t * __restrict); 618int bind(int, const struct sockaddr *, socklen_t); 619int connect(int, const struct sockaddr *, socklen_t); 620#if __BSD_VISIBLE 621int accept4(int, struct sockaddr * __restrict, socklen_t * __restrict, int); 622int bindat(int, int, const struct sockaddr *, socklen_t); 623int connectat(int, int, const struct sockaddr *, socklen_t); 624#endif 625int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict); 626int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict); 627int getsockopt(int, int, int, void * __restrict, socklen_t * __restrict); 628int listen(int, int); 629ssize_t recv(int, void *, size_t, int); 630ssize_t recvfrom(int, void *, size_t, int, struct sockaddr * __restrict, socklen_t * __restrict); 631ssize_t recvmsg(int, struct msghdr *, int); 632#if __BSD_VISIBLE 633struct timespec; 634ssize_t recvmmsg(int, struct mmsghdr * __restrict, size_t, int, 635 const struct timespec * __restrict); 636#endif 637ssize_t send(int, const void *, size_t, int); 638ssize_t sendto(int, const void *, 639 size_t, int, const struct sockaddr *, socklen_t); 640ssize_t sendmsg(int, const struct msghdr *, int); 641#if __BSD_VISIBLE 642int sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int); 643ssize_t sendmmsg(int, struct mmsghdr * __restrict, size_t, int); 644int setfib(int); 645#endif 646int setsockopt(int, int, int, const void *, socklen_t); 647int shutdown(int, int); 648int sockatmark(int); 649int socket(int, int, int); 650int socketpair(int, int, int, int *); 651__END_DECLS 652 653#endif /* !_KERNEL */ 654 655#ifdef _KERNEL 656struct socket; 657 658struct tcpcb *so_sototcpcb(struct socket *so); 659struct inpcb *so_sotoinpcb(struct socket *so); 660struct sockbuf *so_sockbuf_snd(struct socket *); 661struct sockbuf *so_sockbuf_rcv(struct socket *); 662 663int so_state_get(const struct socket *); 664void so_state_set(struct socket *, int); 665 666int so_options_get(const struct socket *); 667void so_options_set(struct socket *, int); 668 669int so_error_get(const struct socket *); 670void so_error_set(struct socket *, int); 671 672int so_linger_get(const struct socket *); 673void so_linger_set(struct socket *, int); 674 675struct protosw *so_protosw_get(const struct socket *); 676void so_protosw_set(struct socket *, struct protosw *); 677 678void so_sorwakeup_locked(struct socket *so); 679void so_sowwakeup_locked(struct socket *so); 680 681void so_sorwakeup(struct socket *so); 682void so_sowwakeup(struct socket *so); 683 684void so_lock(struct socket *so); 685void so_unlock(struct socket *so); 686 687void so_listeners_apply_all(struct socket *so, void (*func)(struct socket *, void *), void *arg); 688 689#endif 690 691 692#endif /* !_SYS_SOCKET_H_ */ 693