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Unleashed v1.4
[unleashed.git] / usr / src / boot / sys / sys / socket.h
blob21d1c8474e7de79db15a32a5d90af29ad99d58c5
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 * $FreeBSD$
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
50 typedef __gid_t gid_t;
51 #define _GID_T_DECLARED
52 #endif
53
54 #ifndef _OFF_T_DECLARED
55 typedef __off_t off_t;
56 #define _OFF_T_DECLARED
57 #endif
58
59 #ifndef _PID_T_DECLARED
60 typedef __pid_t pid_t;
61 #define _PID_T_DECLARED
62 #endif
63 #endif
64
65 #ifndef _SA_FAMILY_T_DECLARED
66 typedef __sa_family_t sa_family_t;
67 #define _SA_FAMILY_T_DECLARED
68 #endif
69
70 #ifndef _SOCKLEN_T_DECLARED
71 typedef __socklen_t socklen_t;
72 #define _SOCKLEN_T_DECLARED
73 #endif
74
75 #ifndef _SSIZE_T_DECLARED
76 typedef __ssize_t ssize_t;
77 #define _SSIZE_T_DECLARED
78 #endif
79
80 #if __BSD_VISIBLE
81 #ifndef _UID_T_DECLARED
82 typedef __uid_t uid_t;
83 #define _UID_T_DECLARED
84 #endif
85 #endif
86
87 #ifndef _UINT32_T_DECLARED
88 typedef __uint32_t uint32_t;
89 #define _UINT32_T_DECLARED
90 #endif
91
92 #ifndef _UINTPTR_T_DECLARED
93 typedef __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 */
175 struct linger {
176 int l_onoff; /* option on/off */
177 int l_linger; /* linger time */
178 };
179
180 #if __BSD_VISIBLE
181 struct 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 */
305 struct 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 */
317 struct 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 */
407 struct 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 */
446 struct 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 */
468 struct 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 */
480 struct 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 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 */
542 struct osockaddr {
543 unsigned short sa_family; /* address family */
544 char sa_data[14]; /* up to 14 bytes of direct address */
545 };
546
547 #endif
548
549 /*
550 * howto arguments for shutdown(2), specified by Posix.1g.
551 */
552 #define SHUT_RD 0 /* shut down the reading side */
553 #define SHUT_WR 1 /* shut down the writing side */
554 #define SHUT_RDWR 2 /* shut down both sides */
555
556 #if __BSD_VISIBLE
557 /* for SCTP */
558 /* we cheat and use the SHUT_XX defines for these */
559 #define PRU_FLUSH_RD SHUT_RD
560 #define PRU_FLUSH_WR SHUT_WR
561 #define PRU_FLUSH_RDWR SHUT_RDWR
562 #endif
563
564
565 #if __BSD_VISIBLE
566 /*
567 * sendfile(2) header/trailer struct
568 */
569 struct sf_hdtr {
570 struct iovec *headers; /* pointer to an array of header struct iovec's */
571 int hdr_cnt; /* number of header iovec's */
572 struct iovec *trailers; /* pointer to an array of trailer struct iovec's */
573 int trl_cnt; /* number of trailer iovec's */
574 };
575
576 /*
577 * Sendfile-specific flag(s)
578 */
579 #define SF_NODISKIO 0x00000001
580 #define SF_MNOWAIT 0x00000002 /* obsolete */
581 #define SF_SYNC 0x00000004
582 #define SF_NOCACHE 0x00000010
583 #define SF_FLAGS(rh, flags) (((rh) << 16) | (flags))
584
585 #ifdef _KERNEL
586 #define SFK_COMPAT 0x00000001
587 #define SF_READAHEAD(flags) ((flags) >> 16)
588 #endif /* _KERNEL */
589
590 /*
591 * Sendmmsg/recvmmsg specific structure(s)
592 */
593 struct mmsghdr {
594 struct msghdr msg_hdr; /* message header */
595 ssize_t msg_len; /* message length */
596 };
597 #endif /* __BSD_VISIBLE */
598
599 #ifndef _KERNEL
600
601 #include <sys/cdefs.h>
602
603 __BEGIN_DECLS
604 int accept(int, struct sockaddr * __restrict, socklen_t * __restrict);
605 int bind(int, const struct sockaddr *, socklen_t);
606 int connect(int, const struct sockaddr *, socklen_t);
607 #if __BSD_VISIBLE
608 int accept4(int, struct sockaddr * __restrict, socklen_t * __restrict, int);
609 int bindat(int, int, const struct sockaddr *, socklen_t);
610 int connectat(int, int, const struct sockaddr *, socklen_t);
611 #endif
612 int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict);
613 int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict);
614 int getsockopt(int, int, int, void * __restrict, socklen_t * __restrict);
615 int listen(int, int);
616 ssize_t recv(int, void *, size_t, int);
617 ssize_t recvfrom(int, void *, size_t, int, struct sockaddr * __restrict, socklen_t * __restrict);
618 ssize_t recvmsg(int, struct msghdr *, int);
619 #if __BSD_VISIBLE
620 struct timespec;
621 ssize_t recvmmsg(int, struct mmsghdr * __restrict, size_t, int,
622 const struct timespec * __restrict);
623 #endif
624 ssize_t send(int, const void *, size_t, int);
625 ssize_t sendto(int, const void *,
626 size_t, int, const struct sockaddr *, socklen_t);
627 ssize_t sendmsg(int, const struct msghdr *, int);
628 #if __BSD_VISIBLE
629 int sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int);
630 ssize_t sendmmsg(int, struct mmsghdr * __restrict, size_t, int);
631 int setfib(int);
632 #endif
633 int setsockopt(int, int, int, const void *, socklen_t);
634 int shutdown(int, int);
635 int sockatmark(int);
636 int socket(int, int, int);
637 int socketpair(int, int, int, int *);
638 __END_DECLS
639
640 #endif /* !_KERNEL */
641
642 #ifdef _KERNEL
643 struct socket;
644
645 struct tcpcb *so_sototcpcb(struct socket *so);
646 struct inpcb *so_sotoinpcb(struct socket *so);
647 struct sockbuf *so_sockbuf_snd(struct socket *);
648 struct sockbuf *so_sockbuf_rcv(struct socket *);
649
650 int so_state_get(const struct socket *);
651 void so_state_set(struct socket *, int);
652
653 int so_options_get(const struct socket *);
654 void so_options_set(struct socket *, int);
655
656 int so_error_get(const struct socket *);
657 void so_error_set(struct socket *, int);
658
659 int so_linger_get(const struct socket *);
660 void so_linger_set(struct socket *, int);
661
662 struct protosw *so_protosw_get(const struct socket *);
663 void so_protosw_set(struct socket *, struct protosw *);
664
665 void so_sorwakeup_locked(struct socket *so);
666 void so_sowwakeup_locked(struct socket *so);
667
668 void so_sorwakeup(struct socket *so);
669 void so_sowwakeup(struct socket *so);
670
671 void so_lock(struct socket *so);
672 void so_unlock(struct socket *so);
673
674 void so_listeners_apply_all(struct socket *so, void (*func)(struct socket *, void *), void *arg);
675
676 #endif
677
678
679 #endif /* !_SYS_SOCKET_H_ */
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