socket.h revision 196994
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 196994 2009-09-08 20:45:40Z phk $ 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/* 88 * Types 89 */ 90#define SOCK_STREAM 1 /* stream socket */ 91#define SOCK_DGRAM 2 /* datagram socket */ 92#define SOCK_RAW 3 /* raw-protocol interface */ 93#if __BSD_VISIBLE 94#define SOCK_RDM 4 /* reliably-delivered message */ 95#endif 96#define SOCK_SEQPACKET 5 /* sequenced packet stream */ 97 98/* 99 * Option flags per-socket. 100 */ 101#define SO_DEBUG 0x0001 /* turn on debugging info recording */ 102#define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ 103#define SO_REUSEADDR 0x0004 /* allow local address reuse */ 104#define SO_KEEPALIVE 0x0008 /* keep connections alive */ 105#define SO_DONTROUTE 0x0010 /* just use interface addresses */ 106#define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */ 107#if __BSD_VISIBLE 108#define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */ 109#endif 110#define SO_LINGER 0x0080 /* linger on close if data present */ 111#define SO_OOBINLINE 0x0100 /* leave received OOB data in line */ 112#if __BSD_VISIBLE 113#define SO_REUSEPORT 0x0200 /* allow local address & port reuse */ 114#define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */ 115#define SO_NOSIGPIPE 0x0800 /* no SIGPIPE from EPIPE */ 116#define SO_ACCEPTFILTER 0x1000 /* there is an accept filter */ 117#define SO_BINTIME 0x2000 /* timestamp received dgram traffic */ 118#endif 119#define SO_NO_OFFLOAD 0x4000 /* socket cannot be offloaded */ 120#define SO_NO_DDP 0x8000 /* disable direct data placement */ 121 122/* 123 * Additional options, not kept in so_options. 124 */ 125#define SO_SNDBUF 0x1001 /* send buffer size */ 126#define SO_RCVBUF 0x1002 /* receive buffer size */ 127#define SO_SNDLOWAT 0x1003 /* send low-water mark */ 128#define SO_RCVLOWAT 0x1004 /* receive low-water mark */ 129#define SO_SNDTIMEO 0x1005 /* send timeout */ 130#define SO_RCVTIMEO 0x1006 /* receive timeout */ 131#define SO_ERROR 0x1007 /* get error status and clear */ 132#define SO_TYPE 0x1008 /* get socket type */ 133#if __BSD_VISIBLE 134#define SO_LABEL 0x1009 /* socket's MAC label */ 135#define SO_PEERLABEL 0x1010 /* socket's peer's MAC label */ 136#define SO_LISTENQLIMIT 0x1011 /* socket's backlog limit */ 137#define SO_LISTENQLEN 0x1012 /* socket's complete queue length */ 138#define SO_LISTENINCQLEN 0x1013 /* socket's incomplete queue length */ 139#define SO_SETFIB 0x1014 /* use this FIB to route */ 140#endif 141 142/* 143 * Structure used for manipulating linger option. 144 */ 145struct linger { 146 int l_onoff; /* option on/off */ 147 int l_linger; /* linger time */ 148}; 149 150#if __BSD_VISIBLE 151struct accept_filter_arg { 152 char af_name[16]; 153 char af_arg[256-16]; 154}; 155#endif 156 157/* 158 * Level number for (get/set)sockopt() to apply to socket itself. 159 */ 160#define SOL_SOCKET 0xffff /* options for socket level */ 161 162/* 163 * Address families. 164 */ 165#define AF_UNSPEC 0 /* unspecified */ 166#if __BSD_VISIBLE 167#define AF_LOCAL AF_UNIX /* local to host (pipes, portals) */ 168#endif 169#define AF_UNIX 1 /* standardized name for AF_LOCAL */ 170#define AF_INET 2 /* internetwork: UDP, TCP, etc. */ 171#if __BSD_VISIBLE 172#define AF_IMPLINK 3 /* arpanet imp addresses */ 173#define AF_PUP 4 /* pup protocols: e.g. BSP */ 174#define AF_CHAOS 5 /* mit CHAOS protocols */ 175#define AF_NETBIOS 6 /* SMB protocols */ 176#define AF_ISO 7 /* ISO protocols */ 177#define AF_OSI AF_ISO 178#define AF_ECMA 8 /* European computer manufacturers */ 179#define AF_DATAKIT 9 /* datakit protocols */ 180#define AF_CCITT 10 /* CCITT protocols, X.25 etc */ 181#define AF_SNA 11 /* IBM SNA */ 182#define AF_DECnet 12 /* DECnet */ 183#define AF_DLI 13 /* DEC Direct data link interface */ 184#define AF_LAT 14 /* LAT */ 185#define AF_HYLINK 15 /* NSC Hyperchannel */ 186#define AF_APPLETALK 16 /* Apple Talk */ 187#define AF_ROUTE 17 /* Internal Routing Protocol */ 188#define AF_LINK 18 /* Link layer interface */ 189#define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */ 190#define AF_COIP 20 /* connection-oriented IP, aka ST II */ 191#define AF_CNT 21 /* Computer Network Technology */ 192#define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */ 193#define AF_IPX 23 /* Novell Internet Protocol */ 194#define AF_SIP 24 /* Simple Internet Protocol */ 195#define pseudo_AF_PIP 25 /* Help Identify PIP packets */ 196#define AF_ISDN 26 /* Integrated Services Digital Network*/ 197#define AF_E164 AF_ISDN /* CCITT E.164 recommendation */ 198#define pseudo_AF_KEY 27 /* Internal key-management function */ 199#endif 200#define AF_INET6 28 /* IPv6 */ 201#if __BSD_VISIBLE 202#define AF_NATM 29 /* native ATM access */ 203#define AF_ATM 30 /* ATM */ 204#define pseudo_AF_HDRCMPLT 31 /* Used by BPF to not rewrite headers 205 * in interface output routine 206 */ 207#define AF_NETGRAPH 32 /* Netgraph sockets */ 208#define AF_SLOW 33 /* 802.3ad slow protocol */ 209#define AF_SCLUSTER 34 /* Sitara cluster protocol */ 210#define AF_ARP 35 211#define AF_BLUETOOTH 36 /* Bluetooth sockets */ 212#define AF_IEEE80211 37 /* IEEE 802.11 protocol */ 213#define AF_MAX 38 214/* 215 * When allocating a new AF_ constant, please only allocate 216 * even numbered constants for FreeBSD until 134 as odd numbered AF_ 217 * constants 39-133 are now reserved for vendors. 218 */ 219#define AF_VENDOR00 39 220#define AF_VENDOR01 41 221#define AF_VENDOR02 43 222#define AF_VENDOR03 45 223#define AF_VENDOR04 47 224#define AF_VENDOR05 49 225#define AF_VENDOR06 51 226#define AF_VENDOR07 53 227#define AF_VENDOR08 55 228#define AF_VENDOR09 57 229#define AF_VENDOR10 59 230#define AF_VENDOR11 61 231#define AF_VENDOR12 63 232#define AF_VENDOR13 65 233#define AF_VENDOR14 67 234#define AF_VENDOR15 69 235#define AF_VENDOR16 71 236#define AF_VENDOR17 73 237#define AF_VENDOR18 75 238#define AF_VENDOR19 77 239#define AF_VENDOR20 79 240#define AF_VENDOR21 81 241#define AF_VENDOR22 83 242#define AF_VENDOR23 85 243#define AF_VENDOR24 87 244#define AF_VENDOR25 89 245#define AF_VENDOR26 91 246#define AF_VENDOR27 93 247#define AF_VENDOR28 95 248#define AF_VENDOR29 97 249#define AF_VENDOR30 99 250#define AF_VENDOR31 101 251#define AF_VENDOR32 103 252#define AF_VENDOR33 105 253#define AF_VENDOR34 107 254#define AF_VENDOR35 109 255#define AF_VENDOR36 111 256#define AF_VENDOR37 113 257#define AF_VENDOR38 115 258#define AF_VENDOR39 117 259#define AF_VENDOR40 119 260#define AF_VENDOR41 121 261#define AF_VENDOR42 123 262#define AF_VENDOR43 125 263#define AF_VENDOR44 127 264#define AF_VENDOR45 129 265#define AF_VENDOR46 131 266#define AF_VENDOR47 133 267#endif 268 269/* 270 * Structure used by kernel to store most 271 * addresses. 272 */ 273struct sockaddr { 274 unsigned char sa_len; /* total length */ 275 sa_family_t sa_family; /* address family */ 276 char sa_data[14]; /* actually longer; address value */ 277}; 278#if __BSD_VISIBLE 279#define SOCK_MAXADDRLEN 255 /* longest possible addresses */ 280 281/* 282 * Structure used by kernel to pass protocol 283 * information in raw sockets. 284 */ 285struct sockproto { 286 unsigned short sp_family; /* address family */ 287 unsigned short sp_protocol; /* protocol */ 288}; 289#endif 290 291#include <sys/_sockaddr_storage.h> 292 293#if __BSD_VISIBLE 294/* 295 * Protocol families, same as address families for now. 296 */ 297#define PF_UNSPEC AF_UNSPEC 298#define PF_LOCAL AF_LOCAL 299#define PF_UNIX PF_LOCAL /* backward compatibility */ 300#define PF_INET AF_INET 301#define PF_IMPLINK AF_IMPLINK 302#define PF_PUP AF_PUP 303#define PF_CHAOS AF_CHAOS 304#define PF_NETBIOS AF_NETBIOS 305#define PF_ISO AF_ISO 306#define PF_OSI AF_ISO 307#define PF_ECMA AF_ECMA 308#define PF_DATAKIT AF_DATAKIT 309#define PF_CCITT AF_CCITT 310#define PF_SNA AF_SNA 311#define PF_DECnet AF_DECnet 312#define PF_DLI AF_DLI 313#define PF_LAT AF_LAT 314#define PF_HYLINK AF_HYLINK 315#define PF_APPLETALK AF_APPLETALK 316#define PF_ROUTE AF_ROUTE 317#define PF_LINK AF_LINK 318#define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */ 319#define PF_COIP AF_COIP 320#define PF_CNT AF_CNT 321#define PF_SIP AF_SIP 322#define PF_IPX AF_IPX 323#define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */ 324#define PF_PIP pseudo_AF_PIP 325#define PF_ISDN AF_ISDN 326#define PF_KEY pseudo_AF_KEY 327#define PF_INET6 AF_INET6 328#define PF_NATM AF_NATM 329#define PF_ATM AF_ATM 330#define PF_NETGRAPH AF_NETGRAPH 331#define PF_SLOW AF_SLOW 332#define PF_SCLUSTER AF_SCLUSTER 333#define PF_ARP AF_ARP 334#define PF_BLUETOOTH AF_BLUETOOTH 335 336#define PF_MAX AF_MAX 337 338/* 339 * Definitions for network related sysctl, CTL_NET. 340 * 341 * Second level is protocol family. 342 * Third level is protocol number. 343 * 344 * Further levels are defined by the individual families below. 345 */ 346#define NET_MAXID AF_MAX 347 348#define CTL_NET_NAMES { \ 349 { 0, 0 }, \ 350 { "unix", CTLTYPE_NODE }, \ 351 { "inet", CTLTYPE_NODE }, \ 352 { "implink", CTLTYPE_NODE }, \ 353 { "pup", CTLTYPE_NODE }, \ 354 { "chaos", CTLTYPE_NODE }, \ 355 { "xerox_ns", CTLTYPE_NODE }, \ 356 { "iso", CTLTYPE_NODE }, \ 357 { "emca", CTLTYPE_NODE }, \ 358 { "datakit", CTLTYPE_NODE }, \ 359 { "ccitt", CTLTYPE_NODE }, \ 360 { "ibm_sna", CTLTYPE_NODE }, \ 361 { "decnet", CTLTYPE_NODE }, \ 362 { "dec_dli", CTLTYPE_NODE }, \ 363 { "lat", CTLTYPE_NODE }, \ 364 { "hylink", CTLTYPE_NODE }, \ 365 { "appletalk", CTLTYPE_NODE }, \ 366 { "route", CTLTYPE_NODE }, \ 367 { "link_layer", CTLTYPE_NODE }, \ 368 { "xtp", CTLTYPE_NODE }, \ 369 { "coip", CTLTYPE_NODE }, \ 370 { "cnt", CTLTYPE_NODE }, \ 371 { "rtip", CTLTYPE_NODE }, \ 372 { "ipx", CTLTYPE_NODE }, \ 373 { "sip", CTLTYPE_NODE }, \ 374 { "pip", CTLTYPE_NODE }, \ 375 { "isdn", CTLTYPE_NODE }, \ 376 { "key", CTLTYPE_NODE }, \ 377 { "inet6", CTLTYPE_NODE }, \ 378 { "natm", CTLTYPE_NODE }, \ 379 { "atm", CTLTYPE_NODE }, \ 380 { "hdrcomplete", CTLTYPE_NODE }, \ 381 { "netgraph", CTLTYPE_NODE }, \ 382 { "snp", CTLTYPE_NODE }, \ 383 { "scp", CTLTYPE_NODE }, \ 384} 385 386/* 387 * PF_ROUTE - Routing table 388 * 389 * Three additional levels are defined: 390 * Fourth: address family, 0 is wildcard 391 * Fifth: type of info, defined below 392 * Sixth: flag(s) to mask with for NET_RT_FLAGS 393 */ 394#define NET_RT_DUMP 1 /* dump; may limit to a.f. */ 395#define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */ 396#define NET_RT_IFLIST 3 /* survey interface list */ 397#define NET_RT_IFMALIST 4 /* return multicast address list */ 398#define NET_RT_MAXID 5 399 400#define CTL_NET_RT_NAMES { \ 401 { 0, 0 }, \ 402 { "dump", CTLTYPE_STRUCT }, \ 403 { "flags", CTLTYPE_STRUCT }, \ 404 { "iflist", CTLTYPE_STRUCT }, \ 405 { "ifmalist", CTLTYPE_STRUCT }, \ 406} 407#endif /* __BSD_VISIBLE */ 408 409/* 410 * Maximum queue length specifiable by listen. 411 */ 412#define SOMAXCONN 128 413 414/* 415 * Message header for recvmsg and sendmsg calls. 416 * Used value-result for recvmsg, value only for sendmsg. 417 */ 418struct msghdr { 419 void *msg_name; /* optional address */ 420 socklen_t msg_namelen; /* size of address */ 421 struct iovec *msg_iov; /* scatter/gather array */ 422 int msg_iovlen; /* # elements in msg_iov */ 423 void *msg_control; /* ancillary data, see below */ 424 socklen_t msg_controllen; /* ancillary data buffer len */ 425 int msg_flags; /* flags on received message */ 426}; 427 428#define MSG_OOB 0x1 /* process out-of-band data */ 429#define MSG_PEEK 0x2 /* peek at incoming message */ 430#define MSG_DONTROUTE 0x4 /* send without using routing tables */ 431#define MSG_EOR 0x8 /* data completes record */ 432#define MSG_TRUNC 0x10 /* data discarded before delivery */ 433#define MSG_CTRUNC 0x20 /* control data lost before delivery */ 434#define MSG_WAITALL 0x40 /* wait for full request or error */ 435#define MSG_NOTIFICATION 0x2000 /* SCTP notification */ 436#if __BSD_VISIBLE 437#define MSG_DONTWAIT 0x80 /* this message should be nonblocking */ 438#define MSG_EOF 0x100 /* data completes connection */ 439#define MSG_NBIO 0x4000 /* FIONBIO mode, used by fifofs */ 440#define MSG_COMPAT 0x8000 /* used in sendit() */ 441#endif 442#ifdef _KERNEL 443#define MSG_SOCALLBCK 0x10000 /* for use by socket callbacks - soreceive (TCP) */ 444#endif 445#if __BSD_VISIBLE 446#define MSG_NOSIGNAL 0x20000 /* do not generate SIGPIPE on EOF */ 447#endif 448 449/* 450 * Header for ancillary data objects in msg_control buffer. 451 * Used for additional information with/about a datagram 452 * not expressible by flags. The format is a sequence 453 * of message elements headed by cmsghdr structures. 454 */ 455struct cmsghdr { 456 socklen_t cmsg_len; /* data byte count, including hdr */ 457 int cmsg_level; /* originating protocol */ 458 int cmsg_type; /* protocol-specific type */ 459/* followed by u_char cmsg_data[]; */ 460}; 461 462#if __BSD_VISIBLE 463/* 464 * While we may have more groups than this, the cmsgcred struct must 465 * be able to fit in an mbuf, and NGROUPS_MAX is too large to allow 466 * this. 467*/ 468#define CMGROUP_MAX 16 469 470/* 471 * Credentials structure, used to verify the identity of a peer 472 * process that has sent us a message. This is allocated by the 473 * peer process but filled in by the kernel. This prevents the 474 * peer from lying about its identity. (Note that cmcred_groups[0] 475 * is the effective GID.) 476 */ 477struct cmsgcred { 478 pid_t cmcred_pid; /* PID of sending process */ 479 uid_t cmcred_uid; /* real UID of sending process */ 480 uid_t cmcred_euid; /* effective UID of sending process */ 481 gid_t cmcred_gid; /* real GID of sending process */ 482 short cmcred_ngroups; /* number or groups */ 483 gid_t cmcred_groups[CMGROUP_MAX]; /* groups */ 484}; 485 486/* 487 * Socket credentials. 488 */ 489struct sockcred { 490 uid_t sc_uid; /* real user id */ 491 uid_t sc_euid; /* effective user id */ 492 gid_t sc_gid; /* real group id */ 493 gid_t sc_egid; /* effective group id */ 494 int sc_ngroups; /* number of supplemental groups */ 495 gid_t sc_groups[1]; /* variable length */ 496}; 497 498/* 499 * Compute size of a sockcred structure with groups. 500 */ 501#define SOCKCREDSIZE(ngrps) \ 502 (sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1))) 503 504#endif /* __BSD_VISIBLE */ 505 506/* given pointer to struct cmsghdr, return pointer to data */ 507#define CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \ 508 _ALIGN(sizeof(struct cmsghdr))) 509 510/* given pointer to struct cmsghdr, return pointer to next cmsghdr */ 511#define CMSG_NXTHDR(mhdr, cmsg) \ 512 ((char *)(cmsg) == NULL ? CMSG_FIRSTHDR(mhdr) : \ 513 ((char *)(cmsg) + _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len) + \ 514 _ALIGN(sizeof(struct cmsghdr)) > \ 515 (char *)(mhdr)->msg_control + (mhdr)->msg_controllen) ? \ 516 (struct cmsghdr *)0 : \ 517 (struct cmsghdr *)((char *)(cmsg) + \ 518 _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len))) 519 520/* 521 * RFC 2292 requires to check msg_controllen, in case that the kernel returns 522 * an empty list for some reasons. 523 */ 524#define CMSG_FIRSTHDR(mhdr) \ 525 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \ 526 (struct cmsghdr *)(mhdr)->msg_control : \ 527 (struct cmsghdr *)NULL) 528 529#if __BSD_VISIBLE 530/* RFC 2292 additions */ 531#define CMSG_SPACE(l) (_ALIGN(sizeof(struct cmsghdr)) + _ALIGN(l)) 532#define CMSG_LEN(l) (_ALIGN(sizeof(struct cmsghdr)) + (l)) 533#endif 534 535#ifdef _KERNEL 536#define CMSG_ALIGN(n) _ALIGN(n) 537#endif 538 539/* "Socket"-level control message types: */ 540#define SCM_RIGHTS 0x01 /* access rights (array of int) */ 541#if __BSD_VISIBLE 542#define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */ 543#define SCM_CREDS 0x03 /* process creds (struct cmsgcred) */ 544#define SCM_BINTIME 0x04 /* timestamp (struct bintime) */ 545#endif 546 547#if __BSD_VISIBLE 548/* 549 * 4.3 compat sockaddr, move to compat file later 550 */ 551struct osockaddr { 552 unsigned short sa_family; /* address family */ 553 char sa_data[14]; /* up to 14 bytes of direct address */ 554}; 555 556/* 557 * 4.3-compat message header (move to compat file later). 558 */ 559struct omsghdr { 560 char *msg_name; /* optional address */ 561 int msg_namelen; /* size of address */ 562 struct iovec *msg_iov; /* scatter/gather array */ 563 int msg_iovlen; /* # elements in msg_iov */ 564 char *msg_accrights; /* access rights sent/received */ 565 int msg_accrightslen; 566}; 567#endif 568 569/* 570 * howto arguments for shutdown(2), specified by Posix.1g. 571 */ 572#define SHUT_RD 0 /* shut down the reading side */ 573#define SHUT_WR 1 /* shut down the writing side */ 574#define SHUT_RDWR 2 /* shut down both sides */ 575 576/* we cheat and use the SHUT_XX defines for these */ 577#define PRU_FLUSH_RD SHUT_RD 578#define PRU_FLUSH_WR SHUT_WR 579#define PRU_FLUSH_RDWR SHUT_RDWR 580 581 582#if __BSD_VISIBLE 583/* 584 * sendfile(2) header/trailer struct 585 */ 586struct sf_hdtr { 587 struct iovec *headers; /* pointer to an array of header struct iovec's */ 588 int hdr_cnt; /* number of header iovec's */ 589 struct iovec *trailers; /* pointer to an array of trailer struct iovec's */ 590 int trl_cnt; /* number of trailer iovec's */ 591}; 592 593/* 594 * Sendfile-specific flag(s) 595 */ 596#define SF_NODISKIO 0x00000001 597#define SF_MNOWAIT 0x00000002 598#define SF_SYNC 0x00000004 599#endif 600 601#ifndef _KERNEL 602 603#include <sys/cdefs.h> 604 605__BEGIN_DECLS 606int accept(int, struct sockaddr * __restrict, socklen_t * __restrict); 607int bind(int, const struct sockaddr *, socklen_t); 608int connect(int, const struct sockaddr *, socklen_t); 609int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict); 610int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict); 611int getsockopt(int, int, int, void * __restrict, socklen_t * __restrict); 612int listen(int, int); 613ssize_t recv(int, void *, size_t, int); 614ssize_t recvfrom(int, void *, size_t, int, struct sockaddr * __restrict, socklen_t * __restrict); 615ssize_t recvmsg(int, struct msghdr *, int); 616ssize_t send(int, const void *, size_t, int); 617ssize_t sendto(int, const void *, 618 size_t, int, const struct sockaddr *, socklen_t); 619ssize_t sendmsg(int, const struct msghdr *, int); 620#if __BSD_VISIBLE 621int sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int); 622int setfib(int); 623#endif 624int setsockopt(int, int, int, const void *, socklen_t); 625int shutdown(int, int); 626int sockatmark(int); 627int socket(int, int, int); 628int socketpair(int, int, int, int *); 629__END_DECLS 630 631#endif /* !_KERNEL */ 632 633#ifdef _KERNEL 634struct socket; 635 636struct tcpcb *so_sototcpcb(struct socket *so); 637struct inpcb *so_sotoinpcb(struct socket *so); 638struct sockbuf *so_sockbuf_snd(struct socket *); 639struct sockbuf *so_sockbuf_rcv(struct socket *); 640 641int so_state_get(const struct socket *); 642void so_state_set(struct socket *, int); 643 644int so_options_get(const struct socket *); 645void so_options_set(struct socket *, int); 646 647int so_error_get(const struct socket *); 648void so_error_set(struct socket *, int); 649 650int so_linger_get(const struct socket *); 651void so_linger_set(struct socket *, int); 652 653struct protosw *so_protosw_get(const struct socket *); 654void so_protosw_set(struct socket *, struct protosw *); 655 656void so_sorwakeup_locked(struct socket *so); 657void so_sowwakeup_locked(struct socket *so); 658 659void so_sorwakeup(struct socket *so); 660void so_sowwakeup(struct socket *so); 661 662void so_lock(struct socket *so); 663void so_unlock(struct socket *so); 664 665void so_listeners_apply_all(struct socket *so, void (*func)(struct socket *, void *), void *arg); 666 667#endif 668 669 670#endif /* !_SYS_SOCKET_H_ */ 671