socket.h revision 295039
1/*- 2 * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)socket.h 8.4 (Berkeley) 2/21/94 30 * $FreeBSD: head/sys/sys/socket.h 295039 2016-01-29 14:12:12Z kib $ 31 */ 32 33#ifndef _SYS_SOCKET_H_ 34#define _SYS_SOCKET_H_ 35 36#include <sys/cdefs.h> 37#include <sys/_types.h> 38#include <sys/_iovec.h> 39#include <machine/_align.h> 40 41/* 42 * Definitions related to sockets: types, address families, options. 43 */ 44 45/* 46 * Data types. 47 */ 48#if __BSD_VISIBLE 49#ifndef _GID_T_DECLARED 50typedef __gid_t gid_t; 51#define _GID_T_DECLARED 52#endif 53 54#ifndef _OFF_T_DECLARED 55typedef __off_t off_t; 56#define _OFF_T_DECLARED 57#endif 58 59#ifndef _PID_T_DECLARED 60typedef __pid_t pid_t; 61#define _PID_T_DECLARED 62#endif 63#endif 64 65#ifndef _SA_FAMILY_T_DECLARED 66typedef __sa_family_t sa_family_t; 67#define _SA_FAMILY_T_DECLARED 68#endif 69 70#ifndef _SOCKLEN_T_DECLARED 71typedef __socklen_t socklen_t; 72#define _SOCKLEN_T_DECLARED 73#endif 74 75#ifndef _SSIZE_T_DECLARED 76typedef __ssize_t ssize_t; 77#define _SSIZE_T_DECLARED 78#endif 79 80#if __BSD_VISIBLE 81#ifndef _UID_T_DECLARED 82typedef __uid_t uid_t; 83#define _UID_T_DECLARED 84#endif 85#endif 86 87#ifndef _UINT32_T_DECLARED 88typedef __uint32_t uint32_t; 89#define _UINT32_T_DECLARED 90#endif 91 92#ifndef _UINTPTR_T_DECLARED 93typedef __uintptr_t uintptr_t; 94#define _UINTPTR_T_DECLARED 95#endif 96 97/* 98 * Types 99 */ 100#define SOCK_STREAM 1 /* stream socket */ 101#define SOCK_DGRAM 2 /* datagram socket */ 102#define SOCK_RAW 3 /* raw-protocol interface */ 103#if __BSD_VISIBLE 104#define SOCK_RDM 4 /* reliably-delivered message */ 105#endif 106#define SOCK_SEQPACKET 5 /* sequenced packet stream */ 107 108#if __BSD_VISIBLE 109/* 110 * Creation flags, OR'ed into socket() and socketpair() type argument. 111 */ 112#define SOCK_CLOEXEC 0x10000000 113#define SOCK_NONBLOCK 0x20000000 114#endif 115 116/* 117 * Option flags per-socket. 118 */ 119#define SO_DEBUG 0x0001 /* turn on debugging info recording */ 120#define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ 121#define SO_REUSEADDR 0x0004 /* allow local address reuse */ 122#define SO_KEEPALIVE 0x0008 /* keep connections alive */ 123#define SO_DONTROUTE 0x0010 /* just use interface addresses */ 124#define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */ 125#if __BSD_VISIBLE 126#define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */ 127#endif 128#define SO_LINGER 0x0080 /* linger on close if data present */ 129#define SO_OOBINLINE 0x0100 /* leave received OOB data in line */ 130#if __BSD_VISIBLE 131#define SO_REUSEPORT 0x0200 /* allow local address & port reuse */ 132#define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */ 133#define SO_NOSIGPIPE 0x0800 /* no SIGPIPE from EPIPE */ 134#define SO_ACCEPTFILTER 0x1000 /* there is an accept filter */ 135#define SO_BINTIME 0x2000 /* timestamp received dgram traffic */ 136#endif 137#define SO_NO_OFFLOAD 0x4000 /* socket cannot be offloaded */ 138#define SO_NO_DDP 0x8000 /* disable direct data placement */ 139 140/* 141 * Additional options, not kept in so_options. 142 */ 143#define SO_SNDBUF 0x1001 /* send buffer size */ 144#define SO_RCVBUF 0x1002 /* receive buffer size */ 145#define SO_SNDLOWAT 0x1003 /* send low-water mark */ 146#define SO_RCVLOWAT 0x1004 /* receive low-water mark */ 147#define SO_SNDTIMEO 0x1005 /* send timeout */ 148#define SO_RCVTIMEO 0x1006 /* receive timeout */ 149#define SO_ERROR 0x1007 /* get error status and clear */ 150#define SO_TYPE 0x1008 /* get socket type */ 151#if __BSD_VISIBLE 152#define SO_LABEL 0x1009 /* socket's MAC label */ 153#define SO_PEERLABEL 0x1010 /* socket's peer's MAC label */ 154#define SO_LISTENQLIMIT 0x1011 /* socket's backlog limit */ 155#define SO_LISTENQLEN 0x1012 /* socket's complete queue length */ 156#define SO_LISTENINCQLEN 0x1013 /* socket's incomplete queue length */ 157#define SO_SETFIB 0x1014 /* use this FIB to route */ 158#define SO_USER_COOKIE 0x1015 /* user cookie (dummynet etc.) */ 159#define SO_PROTOCOL 0x1016 /* get socket protocol (Linux name) */ 160#define SO_PROTOTYPE SO_PROTOCOL /* alias for SO_PROTOCOL (SunOS name) */ 161#endif 162 163/* 164 * Space reserved for new socket options added by third-party vendors. 165 * This range applies to all socket option levels. New socket options 166 * in FreeBSD should always use an option value less than SO_VENDOR. 167 */ 168#if __BSD_VISIBLE 169#define SO_VENDOR 0x80000000 170#endif 171 172/* 173 * Structure used for manipulating linger option. 174 */ 175struct linger { 176 int l_onoff; /* option on/off */ 177 int l_linger; /* linger time */ 178}; 179 180#if __BSD_VISIBLE 181struct accept_filter_arg { 182 char af_name[16]; 183 char af_arg[256-16]; 184}; 185#endif 186 187/* 188 * Level number for (get/set)sockopt() to apply to socket itself. 189 */ 190#define SOL_SOCKET 0xffff /* options for socket level */ 191 192/* 193 * Address families. 194 */ 195#define AF_UNSPEC 0 /* unspecified */ 196#if __BSD_VISIBLE 197#define AF_LOCAL AF_UNIX /* local to host (pipes, portals) */ 198#endif 199#define AF_UNIX 1 /* standardized name for AF_LOCAL */ 200#define AF_INET 2 /* internetwork: UDP, TCP, etc. */ 201#if __BSD_VISIBLE 202#define AF_IMPLINK 3 /* arpanet imp addresses */ 203#define AF_PUP 4 /* pup protocols: e.g. BSP */ 204#define AF_CHAOS 5 /* mit CHAOS protocols */ 205#define AF_NETBIOS 6 /* SMB protocols */ 206#define AF_ISO 7 /* ISO protocols */ 207#define AF_OSI AF_ISO 208#define AF_ECMA 8 /* European computer manufacturers */ 209#define AF_DATAKIT 9 /* datakit protocols */ 210#define AF_CCITT 10 /* CCITT protocols, X.25 etc */ 211#define AF_SNA 11 /* IBM SNA */ 212#define AF_DECnet 12 /* DECnet */ 213#define AF_DLI 13 /* DEC Direct data link interface */ 214#define AF_LAT 14 /* LAT */ 215#define AF_HYLINK 15 /* NSC Hyperchannel */ 216#define AF_APPLETALK 16 /* Apple Talk */ 217#define AF_ROUTE 17 /* Internal Routing Protocol */ 218#define AF_LINK 18 /* Link layer interface */ 219#define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */ 220#define AF_COIP 20 /* connection-oriented IP, aka ST II */ 221#define AF_CNT 21 /* Computer Network Technology */ 222#define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */ 223#define AF_IPX 23 /* Novell Internet Protocol */ 224#define AF_SIP 24 /* Simple Internet Protocol */ 225#define pseudo_AF_PIP 25 /* Help Identify PIP packets */ 226#define AF_ISDN 26 /* Integrated Services Digital Network*/ 227#define AF_E164 AF_ISDN /* CCITT E.164 recommendation */ 228#define pseudo_AF_KEY 27 /* Internal key-management function */ 229#endif 230#define AF_INET6 28 /* IPv6 */ 231#if __BSD_VISIBLE 232#define AF_NATM 29 /* native ATM access */ 233#define AF_ATM 30 /* ATM */ 234#define pseudo_AF_HDRCMPLT 31 /* Used by BPF to not rewrite headers 235 * in interface output routine 236 */ 237#define AF_NETGRAPH 32 /* Netgraph sockets */ 238#define AF_SLOW 33 /* 802.3ad slow protocol */ 239#define AF_SCLUSTER 34 /* Sitara cluster protocol */ 240#define AF_ARP 35 241#define AF_BLUETOOTH 36 /* Bluetooth sockets */ 242#define AF_IEEE80211 37 /* IEEE 802.11 protocol */ 243#define AF_INET_SDP 40 /* OFED Socket Direct Protocol ipv4 */ 244#define AF_INET6_SDP 42 /* OFED Socket Direct Protocol ipv6 */ 245#define AF_MAX 42 246/* 247 * When allocating a new AF_ constant, please only allocate 248 * even numbered constants for FreeBSD until 134 as odd numbered AF_ 249 * constants 39-133 are now reserved for vendors. 250 */ 251#define AF_VENDOR00 39 252#define AF_VENDOR01 41 253#define AF_VENDOR02 43 254#define AF_VENDOR03 45 255#define AF_VENDOR04 47 256#define AF_VENDOR05 49 257#define AF_VENDOR06 51 258#define AF_VENDOR07 53 259#define AF_VENDOR08 55 260#define AF_VENDOR09 57 261#define AF_VENDOR10 59 262#define AF_VENDOR11 61 263#define AF_VENDOR12 63 264#define AF_VENDOR13 65 265#define AF_VENDOR14 67 266#define AF_VENDOR15 69 267#define AF_VENDOR16 71 268#define AF_VENDOR17 73 269#define AF_VENDOR18 75 270#define AF_VENDOR19 77 271#define AF_VENDOR20 79 272#define AF_VENDOR21 81 273#define AF_VENDOR22 83 274#define AF_VENDOR23 85 275#define AF_VENDOR24 87 276#define AF_VENDOR25 89 277#define AF_VENDOR26 91 278#define AF_VENDOR27 93 279#define AF_VENDOR28 95 280#define AF_VENDOR29 97 281#define AF_VENDOR30 99 282#define AF_VENDOR31 101 283#define AF_VENDOR32 103 284#define AF_VENDOR33 105 285#define AF_VENDOR34 107 286#define AF_VENDOR35 109 287#define AF_VENDOR36 111 288#define AF_VENDOR37 113 289#define AF_VENDOR38 115 290#define AF_VENDOR39 117 291#define AF_VENDOR40 119 292#define AF_VENDOR41 121 293#define AF_VENDOR42 123 294#define AF_VENDOR43 125 295#define AF_VENDOR44 127 296#define AF_VENDOR45 129 297#define AF_VENDOR46 131 298#define AF_VENDOR47 133 299#endif 300 301/* 302 * Structure used by kernel to store most 303 * addresses. 304 */ 305struct sockaddr { 306 unsigned char sa_len; /* total length */ 307 sa_family_t sa_family; /* address family */ 308 char sa_data[14]; /* actually longer; address value */ 309}; 310#if __BSD_VISIBLE 311#define SOCK_MAXADDRLEN 255 /* longest possible addresses */ 312 313/* 314 * Structure used by kernel to pass protocol 315 * information in raw sockets. 316 */ 317struct sockproto { 318 unsigned short sp_family; /* address family */ 319 unsigned short sp_protocol; /* protocol */ 320}; 321#endif 322 323#include <sys/_sockaddr_storage.h> 324 325#if __BSD_VISIBLE 326/* 327 * Protocol families, same as address families for now. 328 */ 329#define PF_UNSPEC AF_UNSPEC 330#define PF_LOCAL AF_LOCAL 331#define PF_UNIX PF_LOCAL /* backward compatibility */ 332#define PF_INET AF_INET 333#define PF_IMPLINK AF_IMPLINK 334#define PF_PUP AF_PUP 335#define PF_CHAOS AF_CHAOS 336#define PF_NETBIOS AF_NETBIOS 337#define PF_ISO AF_ISO 338#define PF_OSI AF_ISO 339#define PF_ECMA AF_ECMA 340#define PF_DATAKIT AF_DATAKIT 341#define PF_CCITT AF_CCITT 342#define PF_SNA AF_SNA 343#define PF_DECnet AF_DECnet 344#define PF_DLI AF_DLI 345#define PF_LAT AF_LAT 346#define PF_HYLINK AF_HYLINK 347#define PF_APPLETALK AF_APPLETALK 348#define PF_ROUTE AF_ROUTE 349#define PF_LINK AF_LINK 350#define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */ 351#define PF_COIP AF_COIP 352#define PF_CNT AF_CNT 353#define PF_SIP AF_SIP 354#define PF_IPX AF_IPX 355#define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */ 356#define PF_PIP pseudo_AF_PIP 357#define PF_ISDN AF_ISDN 358#define PF_KEY pseudo_AF_KEY 359#define PF_INET6 AF_INET6 360#define PF_NATM AF_NATM 361#define PF_ATM AF_ATM 362#define PF_NETGRAPH AF_NETGRAPH 363#define PF_SLOW AF_SLOW 364#define PF_SCLUSTER AF_SCLUSTER 365#define PF_ARP AF_ARP 366#define PF_BLUETOOTH AF_BLUETOOTH 367#define PF_IEEE80211 AF_IEEE80211 368#define PF_INET_SDP AF_INET_SDP 369#define PF_INET6_SDP AF_INET6_SDP 370 371#define PF_MAX AF_MAX 372 373/* 374 * Definitions for network related sysctl, CTL_NET. 375 * 376 * Second level is protocol family. 377 * Third level is protocol number. 378 * 379 * Further levels are defined by the individual families. 380 */ 381 382/* 383 * PF_ROUTE - Routing table 384 * 385 * Three additional levels are defined: 386 * Fourth: address family, 0 is wildcard 387 * Fifth: type of info, defined below 388 * Sixth: flag(s) to mask with for NET_RT_FLAGS 389 */ 390#define NET_RT_DUMP 1 /* dump; may limit to a.f. */ 391#define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */ 392#define NET_RT_IFLIST 3 /* survey interface list */ 393#define NET_RT_IFMALIST 4 /* return multicast address list */ 394#define NET_RT_IFLISTL 5 /* Survey interface list, using 'l'en 395 * versions of msghdr structs. */ 396#endif /* __BSD_VISIBLE */ 397 398/* 399 * Maximum queue length specifiable by listen. 400 */ 401#define SOMAXCONN 128 402 403/* 404 * Message header for recvmsg and sendmsg calls. 405 * Used value-result for recvmsg, value only for sendmsg. 406 */ 407struct msghdr { 408 void *msg_name; /* optional address */ 409 socklen_t msg_namelen; /* size of address */ 410 struct iovec *msg_iov; /* scatter/gather array */ 411 int msg_iovlen; /* # elements in msg_iov */ 412 void *msg_control; /* ancillary data, see below */ 413 socklen_t msg_controllen; /* ancillary data buffer len */ 414 int msg_flags; /* flags on received message */ 415}; 416 417#define MSG_OOB 0x1 /* process out-of-band data */ 418#define MSG_PEEK 0x2 /* peek at incoming message */ 419#define MSG_DONTROUTE 0x4 /* send without using routing tables */ 420#define MSG_EOR 0x8 /* data completes record */ 421#define MSG_TRUNC 0x10 /* data discarded before delivery */ 422#define MSG_CTRUNC 0x20 /* control data lost before delivery */ 423#define MSG_WAITALL 0x40 /* wait for full request or error */ 424#if __POSIX_VISIBLE >= 200809 425#define MSG_NOSIGNAL 0x20000 /* do not generate SIGPIPE on EOF */ 426#endif 427#if __BSD_VISIBLE 428#define MSG_DONTWAIT 0x80 /* this message should be nonblocking */ 429#define MSG_EOF 0x100 /* data completes connection */ 430#define MSG_NOTIFICATION 0x2000 /* SCTP notification */ 431#define MSG_NBIO 0x4000 /* FIONBIO mode, used by fifofs */ 432#define MSG_COMPAT 0x8000 /* used in sendit() */ 433#define MSG_CMSG_CLOEXEC 0x40000 /* make received fds close-on-exec */ 434#define MSG_WAITFORONE 0x80000 /* for recvmmsg() */ 435#endif 436#ifdef _KERNEL 437#define MSG_SOCALLBCK 0x10000 /* for use by socket callbacks - soreceive (TCP) */ 438#endif 439 440/* 441 * Header for ancillary data objects in msg_control buffer. 442 * Used for additional information with/about a datagram 443 * not expressible by flags. The format is a sequence 444 * of message elements headed by cmsghdr structures. 445 */ 446struct cmsghdr { 447 socklen_t cmsg_len; /* data byte count, including hdr */ 448 int cmsg_level; /* originating protocol */ 449 int cmsg_type; /* protocol-specific type */ 450/* followed by u_char cmsg_data[]; */ 451}; 452 453#if __BSD_VISIBLE 454/* 455 * While we may have more groups than this, the cmsgcred struct must 456 * be able to fit in an mbuf and we have historically supported a 457 * maximum of 16 groups. 458*/ 459#define CMGROUP_MAX 16 460 461/* 462 * Credentials structure, used to verify the identity of a peer 463 * process that has sent us a message. This is allocated by the 464 * peer process but filled in by the kernel. This prevents the 465 * peer from lying about its identity. (Note that cmcred_groups[0] 466 * is the effective GID.) 467 */ 468struct cmsgcred { 469 pid_t cmcred_pid; /* PID of sending process */ 470 uid_t cmcred_uid; /* real UID of sending process */ 471 uid_t cmcred_euid; /* effective UID of sending process */ 472 gid_t cmcred_gid; /* real GID of sending process */ 473 short cmcred_ngroups; /* number or groups */ 474 gid_t cmcred_groups[CMGROUP_MAX]; /* groups */ 475}; 476 477/* 478 * Socket credentials. 479 */ 480struct sockcred { 481 uid_t sc_uid; /* real user id */ 482 uid_t sc_euid; /* effective user id */ 483 gid_t sc_gid; /* real group id */ 484 gid_t sc_egid; /* effective group id */ 485 int sc_ngroups; /* number of supplemental groups */ 486 gid_t sc_groups[1]; /* variable length */ 487}; 488 489/* 490 * Compute size of a sockcred structure with groups. 491 */ 492#define SOCKCREDSIZE(ngrps) \ 493 (sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1))) 494 495#endif /* __BSD_VISIBLE */ 496 497/* given pointer to struct cmsghdr, return pointer to data */ 498#define CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 499 _ALIGN(sizeof(struct cmsghdr))) 500 501/* given pointer to struct cmsghdr, return pointer to next cmsghdr */ 502#define CMSG_NXTHDR(mhdr, cmsg) \ 503 ((char *)(cmsg) == NULL ? CMSG_FIRSTHDR(mhdr) : \ 504 ((char *)(cmsg) + _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len) + \ 505 _ALIGN(sizeof(struct cmsghdr)) > \ 506 (char *)(mhdr)->msg_control + (mhdr)->msg_controllen) ? \ 507 (struct cmsghdr *)0 : \ 508 (struct cmsghdr *)(void *)((char *)(cmsg) + \ 509 _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len))) 510 511/* 512 * RFC 2292 requires to check msg_controllen, in case that the kernel returns 513 * an empty list for some reasons. 514 */ 515#define CMSG_FIRSTHDR(mhdr) \ 516 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \ 517 (struct cmsghdr *)(mhdr)->msg_control : \ 518 (struct cmsghdr *)NULL) 519 520#if __BSD_VISIBLE 521/* RFC 2292 additions */ 522#define CMSG_SPACE(l) (_ALIGN(sizeof(struct cmsghdr)) + _ALIGN(l)) 523#define CMSG_LEN(l) (_ALIGN(sizeof(struct cmsghdr)) + (l)) 524#endif 525 526#ifdef _KERNEL 527#define CMSG_ALIGN(n) _ALIGN(n) 528#endif 529 530/* "Socket"-level control message types: */ 531#define SCM_RIGHTS 0x01 /* access rights (array of int) */ 532#if __BSD_VISIBLE 533#define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */ 534#define SCM_CREDS 0x03 /* process creds (struct cmsgcred) */ 535#define SCM_BINTIME 0x04 /* timestamp (struct bintime) */ 536#endif 537 538#if __BSD_VISIBLE 539/* 540 * 4.3 compat sockaddr, move to compat file later 541 */ 542struct osockaddr { 543 unsigned short sa_family; /* address family */ 544 char sa_data[14]; /* up to 14 bytes of direct address */ 545}; 546 547/* 548 * 4.3-compat message header (move to compat file later). 549 */ 550struct omsghdr { 551 char *msg_name; /* optional address */ 552 int msg_namelen; /* size of address */ 553 struct iovec *msg_iov; /* scatter/gather array */ 554 int msg_iovlen; /* # elements in msg_iov */ 555 char *msg_accrights; /* access rights sent/received */ 556 int msg_accrightslen; 557}; 558#endif 559 560/* 561 * howto arguments for shutdown(2), specified by Posix.1g. 562 */ 563#define SHUT_RD 0 /* shut down the reading side */ 564#define SHUT_WR 1 /* shut down the writing side */ 565#define SHUT_RDWR 2 /* shut down both sides */ 566 567#if __BSD_VISIBLE 568/* for SCTP */ 569/* we cheat and use the SHUT_XX defines for these */ 570#define PRU_FLUSH_RD SHUT_RD 571#define PRU_FLUSH_WR SHUT_WR 572#define PRU_FLUSH_RDWR SHUT_RDWR 573#endif 574 575 576#if __BSD_VISIBLE 577/* 578 * sendfile(2) header/trailer struct 579 */ 580struct sf_hdtr { 581 struct iovec *headers; /* pointer to an array of header struct iovec's */ 582 int hdr_cnt; /* number of header iovec's */ 583 struct iovec *trailers; /* pointer to an array of trailer struct iovec's */ 584 int trl_cnt; /* number of trailer iovec's */ 585}; 586 587/* 588 * Sendfile-specific flag(s) 589 */ 590#define SF_NODISKIO 0x00000001 591#define SF_MNOWAIT 0x00000002 /* obsolete */ 592#define SF_SYNC 0x00000004 593#define SF_NOCACHE 0x00000010 594#define SF_FLAGS(rh, flags) (((rh) << 16) | (flags)) 595 596#ifdef _KERNEL 597#define SFK_COMPAT 0x00000001 598#define SF_READAHEAD(flags) ((flags) >> 16) 599#endif /* _KERNEL */ 600 601/* 602 * Sendmmsg/recvmmsg specific structure(s) 603 */ 604struct mmsghdr { 605 struct msghdr msg_hdr; /* message header */ 606 ssize_t msg_len; /* message length */ 607}; 608#endif /* __BSD_VISIBLE */ 609 610#ifndef _KERNEL 611 612#include <sys/cdefs.h> 613 614__BEGIN_DECLS 615int accept(int, struct sockaddr * __restrict, socklen_t * __restrict); 616int bind(int, const struct sockaddr *, socklen_t); 617int connect(int, const struct sockaddr *, socklen_t); 618#if __BSD_VISIBLE 619int accept4(int, struct sockaddr * __restrict, socklen_t * __restrict, int); 620int bindat(int, int, const struct sockaddr *, socklen_t); 621int connectat(int, int, const struct sockaddr *, socklen_t); 622#endif 623int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict); 624int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict); 625int getsockopt(int, int, int, void * __restrict, socklen_t * __restrict); 626int listen(int, int); 627ssize_t recv(int, void *, size_t, int); 628ssize_t recvfrom(int, void *, size_t, int, struct sockaddr * __restrict, socklen_t * __restrict); 629ssize_t recvmsg(int, struct msghdr *, int); 630#if __BSD_VISIBLE 631struct timespec; 632ssize_t recvmmsg(int, struct mmsghdr * __restrict, size_t, int, 633 const struct timespec * __restrict); 634#endif 635ssize_t send(int, const void *, size_t, int); 636ssize_t sendto(int, const void *, 637 size_t, int, const struct sockaddr *, socklen_t); 638ssize_t sendmsg(int, const struct msghdr *, int); 639#if __BSD_VISIBLE 640int sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int); 641ssize_t sendmmsg(int, struct mmsghdr * __restrict, size_t, int); 642int setfib(int); 643#endif 644int setsockopt(int, int, int, const void *, socklen_t); 645int shutdown(int, int); 646int sockatmark(int); 647int socket(int, int, int); 648int socketpair(int, int, int, int *); 649__END_DECLS 650 651#endif /* !_KERNEL */ 652 653#ifdef _KERNEL 654struct socket; 655 656struct tcpcb *so_sototcpcb(struct socket *so); 657struct inpcb *so_sotoinpcb(struct socket *so); 658struct sockbuf *so_sockbuf_snd(struct socket *); 659struct sockbuf *so_sockbuf_rcv(struct socket *); 660 661int so_state_get(const struct socket *); 662void so_state_set(struct socket *, int); 663 664int so_options_get(const struct socket *); 665void so_options_set(struct socket *, int); 666 667int so_error_get(const struct socket *); 668void so_error_set(struct socket *, int); 669 670int so_linger_get(const struct socket *); 671void so_linger_set(struct socket *, int); 672 673struct protosw *so_protosw_get(const struct socket *); 674void so_protosw_set(struct socket *, struct protosw *); 675 676void so_sorwakeup_locked(struct socket *so); 677void so_sowwakeup_locked(struct socket *so); 678 679void so_sorwakeup(struct socket *so); 680void so_sowwakeup(struct socket *so); 681 682void so_lock(struct socket *so); 683void so_unlock(struct socket *so); 684 685void so_listeners_apply_all(struct socket *so, void (*func)(struct socket *, void *), void *arg); 686 687#endif 688 689 690#endif /* !_SYS_SOCKET_H_ */ 691