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
| 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
|
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#if __BSD_VISIBLE
99/*
100 * Creation flags, OR'ed into socket() and socketpair() type argument.
101 */
102#define SOCK_CLOEXEC 0x10000000
103#define SOCK_NONBLOCK 0x20000000
104#endif
105
106/*
107 * Option flags per-socket.
108 */
109#define SO_DEBUG 0x0001 /* turn on debugging info recording */
110#define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
111#define SO_REUSEADDR 0x0004 /* allow local address reuse */
112#define SO_KEEPALIVE 0x0008 /* keep connections alive */
113#define SO_DONTROUTE 0x0010 /* just use interface addresses */
114#define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
115#if __BSD_VISIBLE
116#define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
117#endif
118#define SO_LINGER 0x0080 /* linger on close if data present */
119#define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
120#if __BSD_VISIBLE
121#define SO_REUSEPORT 0x0200 /* allow local address & port reuse */
122#define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */
123#define SO_NOSIGPIPE 0x0800 /* no SIGPIPE from EPIPE */
124#define SO_ACCEPTFILTER 0x1000 /* there is an accept filter */
125#define SO_BINTIME 0x2000 /* timestamp received dgram traffic */
126#endif
127#define SO_NO_OFFLOAD 0x4000 /* socket cannot be offloaded */
128#define SO_NO_DDP 0x8000 /* disable direct data placement */
129
130/*
131 * Additional options, not kept in so_options.
132 */
133#define SO_SNDBUF 0x1001 /* send buffer size */
134#define SO_RCVBUF 0x1002 /* receive buffer size */
135#define SO_SNDLOWAT 0x1003 /* send low-water mark */
136#define SO_RCVLOWAT 0x1004 /* receive low-water mark */
137#define SO_SNDTIMEO 0x1005 /* send timeout */
138#define SO_RCVTIMEO 0x1006 /* receive timeout */
139#define SO_ERROR 0x1007 /* get error status and clear */
140#define SO_TYPE 0x1008 /* get socket type */
141#if __BSD_VISIBLE
142#define SO_LABEL 0x1009 /* socket's MAC label */
143#define SO_PEERLABEL 0x1010 /* socket's peer's MAC label */
144#define SO_LISTENQLIMIT 0x1011 /* socket's backlog limit */
145#define SO_LISTENQLEN 0x1012 /* socket's complete queue length */
146#define SO_LISTENINCQLEN 0x1013 /* socket's incomplete queue length */
147#define SO_SETFIB 0x1014 /* use this FIB to route */
148#define SO_USER_COOKIE 0x1015 /* user cookie (dummynet etc.) */
149#define SO_PROTOCOL 0x1016 /* get socket protocol (Linux name) */
150#define SO_PROTOTYPE SO_PROTOCOL /* alias for SO_PROTOCOL (SunOS name) */
151#endif
152
153/*
154 * Space reserved for new socket options added by third-party vendors.
155 * This range applies to all socket option levels. New socket options
156 * in FreeBSD should always use an option value less than SO_VENDOR.
157 */
158#if __BSD_VISIBLE
159#define SO_VENDOR 0x80000000
160#endif
161
162/*
163 * Structure used for manipulating linger option.
164 */
165struct linger {
166 int l_onoff; /* option on/off */
167 int l_linger; /* linger time */
168};
169
170#if __BSD_VISIBLE
171struct accept_filter_arg {
172 char af_name[16];
173 char af_arg[256-16];
174};
175#endif
176
177/*
178 * Level number for (get/set)sockopt() to apply to socket itself.
179 */
180#define SOL_SOCKET 0xffff /* options for socket level */
181
182/*
183 * Address families.
184 */
185#define AF_UNSPEC 0 /* unspecified */
186#if __BSD_VISIBLE
187#define AF_LOCAL AF_UNIX /* local to host (pipes, portals) */
188#endif
189#define AF_UNIX 1 /* standardized name for AF_LOCAL */
190#define AF_INET 2 /* internetwork: UDP, TCP, etc. */
191#if __BSD_VISIBLE
192#define AF_IMPLINK 3 /* arpanet imp addresses */
193#define AF_PUP 4 /* pup protocols: e.g. BSP */
194#define AF_CHAOS 5 /* mit CHAOS protocols */
195#define AF_NETBIOS 6 /* SMB protocols */
196#define AF_ISO 7 /* ISO protocols */
197#define AF_OSI AF_ISO
198#define AF_ECMA 8 /* European computer manufacturers */
199#define AF_DATAKIT 9 /* datakit protocols */
200#define AF_CCITT 10 /* CCITT protocols, X.25 etc */
201#define AF_SNA 11 /* IBM SNA */
202#define AF_DECnet 12 /* DECnet */
203#define AF_DLI 13 /* DEC Direct data link interface */
204#define AF_LAT 14 /* LAT */
205#define AF_HYLINK 15 /* NSC Hyperchannel */
206#define AF_APPLETALK 16 /* Apple Talk */
207#define AF_ROUTE 17 /* Internal Routing Protocol */
208#define AF_LINK 18 /* Link layer interface */
209#define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */
210#define AF_COIP 20 /* connection-oriented IP, aka ST II */
211#define AF_CNT 21 /* Computer Network Technology */
212#define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */
213#define AF_IPX 23 /* Novell Internet Protocol */
214#define AF_SIP 24 /* Simple Internet Protocol */
215#define pseudo_AF_PIP 25 /* Help Identify PIP packets */
216#define AF_ISDN 26 /* Integrated Services Digital Network*/
217#define AF_E164 AF_ISDN /* CCITT E.164 recommendation */
218#define pseudo_AF_KEY 27 /* Internal key-management function */
219#endif
220#define AF_INET6 28 /* IPv6 */
221#if __BSD_VISIBLE
222#define AF_NATM 29 /* native ATM access */
223#define AF_ATM 30 /* ATM */
224#define pseudo_AF_HDRCMPLT 31 /* Used by BPF to not rewrite headers
225 * in interface output routine
226 */
227#define AF_NETGRAPH 32 /* Netgraph sockets */
228#define AF_SLOW 33 /* 802.3ad slow protocol */
229#define AF_SCLUSTER 34 /* Sitara cluster protocol */
230#define AF_ARP 35
231#define AF_BLUETOOTH 36 /* Bluetooth sockets */
232#define AF_IEEE80211 37 /* IEEE 802.11 protocol */
233#define AF_INET_SDP 40 /* OFED Socket Direct Protocol ipv4 */
234#define AF_INET6_SDP 42 /* OFED Socket Direct Protocol ipv6 */
235#define AF_MAX 42
236/*
237 * When allocating a new AF_ constant, please only allocate
238 * even numbered constants for FreeBSD until 134 as odd numbered AF_
239 * constants 39-133 are now reserved for vendors.
240 */
241#define AF_VENDOR00 39
242#define AF_VENDOR01 41
243#define AF_VENDOR02 43
244#define AF_VENDOR03 45
245#define AF_VENDOR04 47
246#define AF_VENDOR05 49
247#define AF_VENDOR06 51
248#define AF_VENDOR07 53
249#define AF_VENDOR08 55
250#define AF_VENDOR09 57
251#define AF_VENDOR10 59
252#define AF_VENDOR11 61
253#define AF_VENDOR12 63
254#define AF_VENDOR13 65
255#define AF_VENDOR14 67
256#define AF_VENDOR15 69
257#define AF_VENDOR16 71
258#define AF_VENDOR17 73
259#define AF_VENDOR18 75
260#define AF_VENDOR19 77
261#define AF_VENDOR20 79
262#define AF_VENDOR21 81
263#define AF_VENDOR22 83
264#define AF_VENDOR23 85
265#define AF_VENDOR24 87
266#define AF_VENDOR25 89
267#define AF_VENDOR26 91
268#define AF_VENDOR27 93
269#define AF_VENDOR28 95
270#define AF_VENDOR29 97
271#define AF_VENDOR30 99
272#define AF_VENDOR31 101
273#define AF_VENDOR32 103
274#define AF_VENDOR33 105
275#define AF_VENDOR34 107
276#define AF_VENDOR35 109
277#define AF_VENDOR36 111
278#define AF_VENDOR37 113
279#define AF_VENDOR38 115
280#define AF_VENDOR39 117
281#define AF_VENDOR40 119
282#define AF_VENDOR41 121
283#define AF_VENDOR42 123
284#define AF_VENDOR43 125
285#define AF_VENDOR44 127
286#define AF_VENDOR45 129
287#define AF_VENDOR46 131
288#define AF_VENDOR47 133
289#endif
290
291/*
292 * Structure used by kernel to store most
293 * addresses.
294 */
295struct sockaddr {
296 unsigned char sa_len; /* total length */
297 sa_family_t sa_family; /* address family */
298 char sa_data[14]; /* actually longer; address value */
299};
300#if __BSD_VISIBLE
301#define SOCK_MAXADDRLEN 255 /* longest possible addresses */
302
303/*
304 * Structure used by kernel to pass protocol
305 * information in raw sockets.
306 */
307struct sockproto {
308 unsigned short sp_family; /* address family */
309 unsigned short sp_protocol; /* protocol */
310};
311#endif
312
313#include <sys/_sockaddr_storage.h>
314
315#if __BSD_VISIBLE
316/*
317 * Protocol families, same as address families for now.
318 */
319#define PF_UNSPEC AF_UNSPEC
320#define PF_LOCAL AF_LOCAL
321#define PF_UNIX PF_LOCAL /* backward compatibility */
322#define PF_INET AF_INET
323#define PF_IMPLINK AF_IMPLINK
324#define PF_PUP AF_PUP
325#define PF_CHAOS AF_CHAOS
326#define PF_NETBIOS AF_NETBIOS
327#define PF_ISO AF_ISO
328#define PF_OSI AF_ISO
329#define PF_ECMA AF_ECMA
330#define PF_DATAKIT AF_DATAKIT
331#define PF_CCITT AF_CCITT
332#define PF_SNA AF_SNA
333#define PF_DECnet AF_DECnet
334#define PF_DLI AF_DLI
335#define PF_LAT AF_LAT
336#define PF_HYLINK AF_HYLINK
337#define PF_APPLETALK AF_APPLETALK
338#define PF_ROUTE AF_ROUTE
339#define PF_LINK AF_LINK
340#define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */
341#define PF_COIP AF_COIP
342#define PF_CNT AF_CNT
343#define PF_SIP AF_SIP
344#define PF_IPX AF_IPX
345#define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */
346#define PF_PIP pseudo_AF_PIP
347#define PF_ISDN AF_ISDN
348#define PF_KEY pseudo_AF_KEY
349#define PF_INET6 AF_INET6
350#define PF_NATM AF_NATM
351#define PF_ATM AF_ATM
352#define PF_NETGRAPH AF_NETGRAPH
353#define PF_SLOW AF_SLOW
354#define PF_SCLUSTER AF_SCLUSTER
355#define PF_ARP AF_ARP
356#define PF_BLUETOOTH AF_BLUETOOTH
357#define PF_IEEE80211 AF_IEEE80211
358#define PF_INET_SDP AF_INET_SDP
359#define PF_INET6_SDP AF_INET6_SDP
360
361#define PF_MAX AF_MAX
362
363/*
364 * Definitions for network related sysctl, CTL_NET.
365 *
366 * Second level is protocol family.
367 * Third level is protocol number.
368 *
369 * Further levels are defined by the individual families below.
370 */
371#define NET_MAXID AF_MAX
372
373#define CTL_NET_NAMES { \
374 { 0, 0 }, \
375 { "unix", CTLTYPE_NODE }, \
376 { "inet", CTLTYPE_NODE }, \
377 { "implink", CTLTYPE_NODE }, \
378 { "pup", CTLTYPE_NODE }, \
379 { "chaos", CTLTYPE_NODE }, \
380 { "xerox_ns", CTLTYPE_NODE }, \
381 { "iso", CTLTYPE_NODE }, \
382 { "emca", CTLTYPE_NODE }, \
383 { "datakit", CTLTYPE_NODE }, \
384 { "ccitt", CTLTYPE_NODE }, \
385 { "ibm_sna", CTLTYPE_NODE }, \
386 { "decnet", CTLTYPE_NODE }, \
387 { "dec_dli", CTLTYPE_NODE }, \
388 { "lat", CTLTYPE_NODE }, \
389 { "hylink", CTLTYPE_NODE }, \
390 { "appletalk", CTLTYPE_NODE }, \
391 { "route", CTLTYPE_NODE }, \
392 { "link_layer", CTLTYPE_NODE }, \
393 { "xtp", CTLTYPE_NODE }, \
394 { "coip", CTLTYPE_NODE }, \
395 { "cnt", CTLTYPE_NODE }, \
396 { "rtip", CTLTYPE_NODE }, \
397 { "ipx", CTLTYPE_NODE }, \
398 { "sip", CTLTYPE_NODE }, \
399 { "pip", CTLTYPE_NODE }, \
400 { "isdn", CTLTYPE_NODE }, \
401 { "key", CTLTYPE_NODE }, \
402 { "inet6", CTLTYPE_NODE }, \
403 { "natm", CTLTYPE_NODE }, \
404 { "atm", CTLTYPE_NODE }, \
405 { "hdrcomplete", CTLTYPE_NODE }, \
406 { "netgraph", CTLTYPE_NODE }, \
407 { "snp", CTLTYPE_NODE }, \
408 { "scp", CTLTYPE_NODE }, \
409}
410
411/*
412 * PF_ROUTE - Routing table
413 *
414 * Three additional levels are defined:
415 * Fourth: address family, 0 is wildcard
416 * Fifth: type of info, defined below
417 * Sixth: flag(s) to mask with for NET_RT_FLAGS
418 */
419#define NET_RT_DUMP 1 /* dump; may limit to a.f. */
420#define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */
421#define NET_RT_IFLIST 3 /* survey interface list */
422#define NET_RT_IFMALIST 4 /* return multicast address list */
423#define NET_RT_IFLISTL 5 /* Survey interface list, using 'l'en
424 * versions of msghdr structs. */
425#define NET_RT_MAXID 6
426
427#define CTL_NET_RT_NAMES { \
428 { 0, 0 }, \
429 { "dump", CTLTYPE_STRUCT }, \
430 { "flags", CTLTYPE_STRUCT }, \
431 { "iflist", CTLTYPE_STRUCT }, \
432 { "ifmalist", CTLTYPE_STRUCT }, \
433 { "iflistl", CTLTYPE_STRUCT }, \
434}
435#endif /* __BSD_VISIBLE */
436
437/*
438 * Maximum queue length specifiable by listen.
439 */
440#define SOMAXCONN 128
441
442/*
443 * Message header for recvmsg and sendmsg calls.
444 * Used value-result for recvmsg, value only for sendmsg.
445 */
446struct msghdr {
447 void *msg_name; /* optional address */
448 socklen_t msg_namelen; /* size of address */
449 struct iovec *msg_iov; /* scatter/gather array */
450 int msg_iovlen; /* # elements in msg_iov */
451 void *msg_control; /* ancillary data, see below */
452 socklen_t msg_controllen; /* ancillary data buffer len */
453 int msg_flags; /* flags on received message */
454};
455
456#define MSG_OOB 0x1 /* process out-of-band data */
457#define MSG_PEEK 0x2 /* peek at incoming message */
458#define MSG_DONTROUTE 0x4 /* send without using routing tables */
459#define MSG_EOR 0x8 /* data completes record */
460#define MSG_TRUNC 0x10 /* data discarded before delivery */
461#define MSG_CTRUNC 0x20 /* control data lost before delivery */
462#define MSG_WAITALL 0x40 /* wait for full request or error */
463#if __POSIX_VISIBLE >= 200809
464#define MSG_NOSIGNAL 0x20000 /* do not generate SIGPIPE on EOF */
465#endif
466#if __BSD_VISIBLE
467#define MSG_DONTWAIT 0x80 /* this message should be nonblocking */
468#define MSG_EOF 0x100 /* data completes connection */
469#define MSG_NOTIFICATION 0x2000 /* SCTP notification */
470#define MSG_NBIO 0x4000 /* FIONBIO mode, used by fifofs */
471#define MSG_COMPAT 0x8000 /* used in sendit() */
472#define MSG_CMSG_CLOEXEC 0x40000 /* make received fds close-on-exec */
473#endif
474#ifdef _KERNEL
475#define MSG_SOCALLBCK 0x10000 /* for use by socket callbacks - soreceive (TCP) */
476#endif
477
478/*
479 * Header for ancillary data objects in msg_control buffer.
480 * Used for additional information with/about a datagram
481 * not expressible by flags. The format is a sequence
482 * of message elements headed by cmsghdr structures.
483 */
484struct cmsghdr {
485 socklen_t cmsg_len; /* data byte count, including hdr */
486 int cmsg_level; /* originating protocol */
487 int cmsg_type; /* protocol-specific type */
488/* followed by u_char cmsg_data[]; */
489};
490
491#if __BSD_VISIBLE
492/*
493 * While we may have more groups than this, the cmsgcred struct must
494 * be able to fit in an mbuf and we have historically supported a
495 * maximum of 16 groups.
496*/
497#define CMGROUP_MAX 16
498
499/*
500 * Credentials structure, used to verify the identity of a peer
501 * process that has sent us a message. This is allocated by the
502 * peer process but filled in by the kernel. This prevents the
503 * peer from lying about its identity. (Note that cmcred_groups[0]
504 * is the effective GID.)
505 */
506struct cmsgcred {
507 pid_t cmcred_pid; /* PID of sending process */
508 uid_t cmcred_uid; /* real UID of sending process */
509 uid_t cmcred_euid; /* effective UID of sending process */
510 gid_t cmcred_gid; /* real GID of sending process */
511 short cmcred_ngroups; /* number or groups */
512 gid_t cmcred_groups[CMGROUP_MAX]; /* groups */
513};
514
515/*
516 * Socket credentials.
517 */
518struct sockcred {
519 uid_t sc_uid; /* real user id */
520 uid_t sc_euid; /* effective user id */
521 gid_t sc_gid; /* real group id */
522 gid_t sc_egid; /* effective group id */
523 int sc_ngroups; /* number of supplemental groups */
524 gid_t sc_groups[1]; /* variable length */
525};
526
527/*
528 * Compute size of a sockcred structure with groups.
529 */
530#define SOCKCREDSIZE(ngrps) \
531 (sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1)))
532
533#endif /* __BSD_VISIBLE */
534
535/* given pointer to struct cmsghdr, return pointer to data */
536#define CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \
537 _ALIGN(sizeof(struct cmsghdr)))
538
539/* given pointer to struct cmsghdr, return pointer to next cmsghdr */
540#define CMSG_NXTHDR(mhdr, cmsg) \
541 ((char *)(cmsg) == NULL ? CMSG_FIRSTHDR(mhdr) : \
542 ((char *)(cmsg) + _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len) + \
543 _ALIGN(sizeof(struct cmsghdr)) > \
544 (char *)(mhdr)->msg_control + (mhdr)->msg_controllen) ? \
545 (struct cmsghdr *)0 : \
546 (struct cmsghdr *)(void *)((char *)(cmsg) + \
547 _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len)))
548
549/*
550 * RFC 2292 requires to check msg_controllen, in case that the kernel returns
551 * an empty list for some reasons.
552 */
553#define CMSG_FIRSTHDR(mhdr) \
554 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
555 (struct cmsghdr *)(mhdr)->msg_control : \
556 (struct cmsghdr *)NULL)
557
558#if __BSD_VISIBLE
559/* RFC 2292 additions */
560#define CMSG_SPACE(l) (_ALIGN(sizeof(struct cmsghdr)) + _ALIGN(l))
561#define CMSG_LEN(l) (_ALIGN(sizeof(struct cmsghdr)) + (l))
562#endif
563
564#ifdef _KERNEL
565#define CMSG_ALIGN(n) _ALIGN(n)
566#endif
567
568/* "Socket"-level control message types: */
569#define SCM_RIGHTS 0x01 /* access rights (array of int) */
570#if __BSD_VISIBLE
571#define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */
572#define SCM_CREDS 0x03 /* process creds (struct cmsgcred) */
573#define SCM_BINTIME 0x04 /* timestamp (struct bintime) */
574#endif
575
576#if __BSD_VISIBLE
577/*
578 * 4.3 compat sockaddr, move to compat file later
579 */
580struct osockaddr {
581 unsigned short sa_family; /* address family */
582 char sa_data[14]; /* up to 14 bytes of direct address */
583};
584
585/*
586 * 4.3-compat message header (move to compat file later).
587 */
588struct omsghdr {
589 char *msg_name; /* optional address */
590 int msg_namelen; /* size of address */
591 struct iovec *msg_iov; /* scatter/gather array */
592 int msg_iovlen; /* # elements in msg_iov */
593 char *msg_accrights; /* access rights sent/received */
594 int msg_accrightslen;
595};
596#endif
597
598/*
599 * howto arguments for shutdown(2), specified by Posix.1g.
600 */
601#define SHUT_RD 0 /* shut down the reading side */
602#define SHUT_WR 1 /* shut down the writing side */
603#define SHUT_RDWR 2 /* shut down both sides */
604
605#if __BSD_VISIBLE
606/* for SCTP */
607/* we cheat and use the SHUT_XX defines for these */
608#define PRU_FLUSH_RD SHUT_RD
609#define PRU_FLUSH_WR SHUT_WR
610#define PRU_FLUSH_RDWR SHUT_RDWR
611#endif
612
613
614#if __BSD_VISIBLE
615/*
616 * sendfile(2) header/trailer struct
617 */
618struct sf_hdtr {
619 struct iovec *headers; /* pointer to an array of header struct iovec's */
620 int hdr_cnt; /* number of header iovec's */
621 struct iovec *trailers; /* pointer to an array of trailer struct iovec's */
622 int trl_cnt; /* number of trailer iovec's */
623};
624
625/*
626 * Sendfile-specific flag(s)
627 */
628#define SF_NODISKIO 0x00000001
629#define SF_MNOWAIT 0x00000002
630#define SF_SYNC 0x00000004
| 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#if __BSD_VISIBLE
99/*
100 * Creation flags, OR'ed into socket() and socketpair() type argument.
101 */
102#define SOCK_CLOEXEC 0x10000000
103#define SOCK_NONBLOCK 0x20000000
104#endif
105
106/*
107 * Option flags per-socket.
108 */
109#define SO_DEBUG 0x0001 /* turn on debugging info recording */
110#define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
111#define SO_REUSEADDR 0x0004 /* allow local address reuse */
112#define SO_KEEPALIVE 0x0008 /* keep connections alive */
113#define SO_DONTROUTE 0x0010 /* just use interface addresses */
114#define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
115#if __BSD_VISIBLE
116#define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
117#endif
118#define SO_LINGER 0x0080 /* linger on close if data present */
119#define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
120#if __BSD_VISIBLE
121#define SO_REUSEPORT 0x0200 /* allow local address & port reuse */
122#define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */
123#define SO_NOSIGPIPE 0x0800 /* no SIGPIPE from EPIPE */
124#define SO_ACCEPTFILTER 0x1000 /* there is an accept filter */
125#define SO_BINTIME 0x2000 /* timestamp received dgram traffic */
126#endif
127#define SO_NO_OFFLOAD 0x4000 /* socket cannot be offloaded */
128#define SO_NO_DDP 0x8000 /* disable direct data placement */
129
130/*
131 * Additional options, not kept in so_options.
132 */
133#define SO_SNDBUF 0x1001 /* send buffer size */
134#define SO_RCVBUF 0x1002 /* receive buffer size */
135#define SO_SNDLOWAT 0x1003 /* send low-water mark */
136#define SO_RCVLOWAT 0x1004 /* receive low-water mark */
137#define SO_SNDTIMEO 0x1005 /* send timeout */
138#define SO_RCVTIMEO 0x1006 /* receive timeout */
139#define SO_ERROR 0x1007 /* get error status and clear */
140#define SO_TYPE 0x1008 /* get socket type */
141#if __BSD_VISIBLE
142#define SO_LABEL 0x1009 /* socket's MAC label */
143#define SO_PEERLABEL 0x1010 /* socket's peer's MAC label */
144#define SO_LISTENQLIMIT 0x1011 /* socket's backlog limit */
145#define SO_LISTENQLEN 0x1012 /* socket's complete queue length */
146#define SO_LISTENINCQLEN 0x1013 /* socket's incomplete queue length */
147#define SO_SETFIB 0x1014 /* use this FIB to route */
148#define SO_USER_COOKIE 0x1015 /* user cookie (dummynet etc.) */
149#define SO_PROTOCOL 0x1016 /* get socket protocol (Linux name) */
150#define SO_PROTOTYPE SO_PROTOCOL /* alias for SO_PROTOCOL (SunOS name) */
151#endif
152
153/*
154 * Space reserved for new socket options added by third-party vendors.
155 * This range applies to all socket option levels. New socket options
156 * in FreeBSD should always use an option value less than SO_VENDOR.
157 */
158#if __BSD_VISIBLE
159#define SO_VENDOR 0x80000000
160#endif
161
162/*
163 * Structure used for manipulating linger option.
164 */
165struct linger {
166 int l_onoff; /* option on/off */
167 int l_linger; /* linger time */
168};
169
170#if __BSD_VISIBLE
171struct accept_filter_arg {
172 char af_name[16];
173 char af_arg[256-16];
174};
175#endif
176
177/*
178 * Level number for (get/set)sockopt() to apply to socket itself.
179 */
180#define SOL_SOCKET 0xffff /* options for socket level */
181
182/*
183 * Address families.
184 */
185#define AF_UNSPEC 0 /* unspecified */
186#if __BSD_VISIBLE
187#define AF_LOCAL AF_UNIX /* local to host (pipes, portals) */
188#endif
189#define AF_UNIX 1 /* standardized name for AF_LOCAL */
190#define AF_INET 2 /* internetwork: UDP, TCP, etc. */
191#if __BSD_VISIBLE
192#define AF_IMPLINK 3 /* arpanet imp addresses */
193#define AF_PUP 4 /* pup protocols: e.g. BSP */
194#define AF_CHAOS 5 /* mit CHAOS protocols */
195#define AF_NETBIOS 6 /* SMB protocols */
196#define AF_ISO 7 /* ISO protocols */
197#define AF_OSI AF_ISO
198#define AF_ECMA 8 /* European computer manufacturers */
199#define AF_DATAKIT 9 /* datakit protocols */
200#define AF_CCITT 10 /* CCITT protocols, X.25 etc */
201#define AF_SNA 11 /* IBM SNA */
202#define AF_DECnet 12 /* DECnet */
203#define AF_DLI 13 /* DEC Direct data link interface */
204#define AF_LAT 14 /* LAT */
205#define AF_HYLINK 15 /* NSC Hyperchannel */
206#define AF_APPLETALK 16 /* Apple Talk */
207#define AF_ROUTE 17 /* Internal Routing Protocol */
208#define AF_LINK 18 /* Link layer interface */
209#define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */
210#define AF_COIP 20 /* connection-oriented IP, aka ST II */
211#define AF_CNT 21 /* Computer Network Technology */
212#define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */
213#define AF_IPX 23 /* Novell Internet Protocol */
214#define AF_SIP 24 /* Simple Internet Protocol */
215#define pseudo_AF_PIP 25 /* Help Identify PIP packets */
216#define AF_ISDN 26 /* Integrated Services Digital Network*/
217#define AF_E164 AF_ISDN /* CCITT E.164 recommendation */
218#define pseudo_AF_KEY 27 /* Internal key-management function */
219#endif
220#define AF_INET6 28 /* IPv6 */
221#if __BSD_VISIBLE
222#define AF_NATM 29 /* native ATM access */
223#define AF_ATM 30 /* ATM */
224#define pseudo_AF_HDRCMPLT 31 /* Used by BPF to not rewrite headers
225 * in interface output routine
226 */
227#define AF_NETGRAPH 32 /* Netgraph sockets */
228#define AF_SLOW 33 /* 802.3ad slow protocol */
229#define AF_SCLUSTER 34 /* Sitara cluster protocol */
230#define AF_ARP 35
231#define AF_BLUETOOTH 36 /* Bluetooth sockets */
232#define AF_IEEE80211 37 /* IEEE 802.11 protocol */
233#define AF_INET_SDP 40 /* OFED Socket Direct Protocol ipv4 */
234#define AF_INET6_SDP 42 /* OFED Socket Direct Protocol ipv6 */
235#define AF_MAX 42
236/*
237 * When allocating a new AF_ constant, please only allocate
238 * even numbered constants for FreeBSD until 134 as odd numbered AF_
239 * constants 39-133 are now reserved for vendors.
240 */
241#define AF_VENDOR00 39
242#define AF_VENDOR01 41
243#define AF_VENDOR02 43
244#define AF_VENDOR03 45
245#define AF_VENDOR04 47
246#define AF_VENDOR05 49
247#define AF_VENDOR06 51
248#define AF_VENDOR07 53
249#define AF_VENDOR08 55
250#define AF_VENDOR09 57
251#define AF_VENDOR10 59
252#define AF_VENDOR11 61
253#define AF_VENDOR12 63
254#define AF_VENDOR13 65
255#define AF_VENDOR14 67
256#define AF_VENDOR15 69
257#define AF_VENDOR16 71
258#define AF_VENDOR17 73
259#define AF_VENDOR18 75
260#define AF_VENDOR19 77
261#define AF_VENDOR20 79
262#define AF_VENDOR21 81
263#define AF_VENDOR22 83
264#define AF_VENDOR23 85
265#define AF_VENDOR24 87
266#define AF_VENDOR25 89
267#define AF_VENDOR26 91
268#define AF_VENDOR27 93
269#define AF_VENDOR28 95
270#define AF_VENDOR29 97
271#define AF_VENDOR30 99
272#define AF_VENDOR31 101
273#define AF_VENDOR32 103
274#define AF_VENDOR33 105
275#define AF_VENDOR34 107
276#define AF_VENDOR35 109
277#define AF_VENDOR36 111
278#define AF_VENDOR37 113
279#define AF_VENDOR38 115
280#define AF_VENDOR39 117
281#define AF_VENDOR40 119
282#define AF_VENDOR41 121
283#define AF_VENDOR42 123
284#define AF_VENDOR43 125
285#define AF_VENDOR44 127
286#define AF_VENDOR45 129
287#define AF_VENDOR46 131
288#define AF_VENDOR47 133
289#endif
290
291/*
292 * Structure used by kernel to store most
293 * addresses.
294 */
295struct sockaddr {
296 unsigned char sa_len; /* total length */
297 sa_family_t sa_family; /* address family */
298 char sa_data[14]; /* actually longer; address value */
299};
300#if __BSD_VISIBLE
301#define SOCK_MAXADDRLEN 255 /* longest possible addresses */
302
303/*
304 * Structure used by kernel to pass protocol
305 * information in raw sockets.
306 */
307struct sockproto {
308 unsigned short sp_family; /* address family */
309 unsigned short sp_protocol; /* protocol */
310};
311#endif
312
313#include <sys/_sockaddr_storage.h>
314
315#if __BSD_VISIBLE
316/*
317 * Protocol families, same as address families for now.
318 */
319#define PF_UNSPEC AF_UNSPEC
320#define PF_LOCAL AF_LOCAL
321#define PF_UNIX PF_LOCAL /* backward compatibility */
322#define PF_INET AF_INET
323#define PF_IMPLINK AF_IMPLINK
324#define PF_PUP AF_PUP
325#define PF_CHAOS AF_CHAOS
326#define PF_NETBIOS AF_NETBIOS
327#define PF_ISO AF_ISO
328#define PF_OSI AF_ISO
329#define PF_ECMA AF_ECMA
330#define PF_DATAKIT AF_DATAKIT
331#define PF_CCITT AF_CCITT
332#define PF_SNA AF_SNA
333#define PF_DECnet AF_DECnet
334#define PF_DLI AF_DLI
335#define PF_LAT AF_LAT
336#define PF_HYLINK AF_HYLINK
337#define PF_APPLETALK AF_APPLETALK
338#define PF_ROUTE AF_ROUTE
339#define PF_LINK AF_LINK
340#define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */
341#define PF_COIP AF_COIP
342#define PF_CNT AF_CNT
343#define PF_SIP AF_SIP
344#define PF_IPX AF_IPX
345#define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */
346#define PF_PIP pseudo_AF_PIP
347#define PF_ISDN AF_ISDN
348#define PF_KEY pseudo_AF_KEY
349#define PF_INET6 AF_INET6
350#define PF_NATM AF_NATM
351#define PF_ATM AF_ATM
352#define PF_NETGRAPH AF_NETGRAPH
353#define PF_SLOW AF_SLOW
354#define PF_SCLUSTER AF_SCLUSTER
355#define PF_ARP AF_ARP
356#define PF_BLUETOOTH AF_BLUETOOTH
357#define PF_IEEE80211 AF_IEEE80211
358#define PF_INET_SDP AF_INET_SDP
359#define PF_INET6_SDP AF_INET6_SDP
360
361#define PF_MAX AF_MAX
362
363/*
364 * Definitions for network related sysctl, CTL_NET.
365 *
366 * Second level is protocol family.
367 * Third level is protocol number.
368 *
369 * Further levels are defined by the individual families below.
370 */
371#define NET_MAXID AF_MAX
372
373#define CTL_NET_NAMES { \
374 { 0, 0 }, \
375 { "unix", CTLTYPE_NODE }, \
376 { "inet", CTLTYPE_NODE }, \
377 { "implink", CTLTYPE_NODE }, \
378 { "pup", CTLTYPE_NODE }, \
379 { "chaos", CTLTYPE_NODE }, \
380 { "xerox_ns", CTLTYPE_NODE }, \
381 { "iso", CTLTYPE_NODE }, \
382 { "emca", CTLTYPE_NODE }, \
383 { "datakit", CTLTYPE_NODE }, \
384 { "ccitt", CTLTYPE_NODE }, \
385 { "ibm_sna", CTLTYPE_NODE }, \
386 { "decnet", CTLTYPE_NODE }, \
387 { "dec_dli", CTLTYPE_NODE }, \
388 { "lat", CTLTYPE_NODE }, \
389 { "hylink", CTLTYPE_NODE }, \
390 { "appletalk", CTLTYPE_NODE }, \
391 { "route", CTLTYPE_NODE }, \
392 { "link_layer", CTLTYPE_NODE }, \
393 { "xtp", CTLTYPE_NODE }, \
394 { "coip", CTLTYPE_NODE }, \
395 { "cnt", CTLTYPE_NODE }, \
396 { "rtip", CTLTYPE_NODE }, \
397 { "ipx", CTLTYPE_NODE }, \
398 { "sip", CTLTYPE_NODE }, \
399 { "pip", CTLTYPE_NODE }, \
400 { "isdn", CTLTYPE_NODE }, \
401 { "key", CTLTYPE_NODE }, \
402 { "inet6", CTLTYPE_NODE }, \
403 { "natm", CTLTYPE_NODE }, \
404 { "atm", CTLTYPE_NODE }, \
405 { "hdrcomplete", CTLTYPE_NODE }, \
406 { "netgraph", CTLTYPE_NODE }, \
407 { "snp", CTLTYPE_NODE }, \
408 { "scp", CTLTYPE_NODE }, \
409}
410
411/*
412 * PF_ROUTE - Routing table
413 *
414 * Three additional levels are defined:
415 * Fourth: address family, 0 is wildcard
416 * Fifth: type of info, defined below
417 * Sixth: flag(s) to mask with for NET_RT_FLAGS
418 */
419#define NET_RT_DUMP 1 /* dump; may limit to a.f. */
420#define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */
421#define NET_RT_IFLIST 3 /* survey interface list */
422#define NET_RT_IFMALIST 4 /* return multicast address list */
423#define NET_RT_IFLISTL 5 /* Survey interface list, using 'l'en
424 * versions of msghdr structs. */
425#define NET_RT_MAXID 6
426
427#define CTL_NET_RT_NAMES { \
428 { 0, 0 }, \
429 { "dump", CTLTYPE_STRUCT }, \
430 { "flags", CTLTYPE_STRUCT }, \
431 { "iflist", CTLTYPE_STRUCT }, \
432 { "ifmalist", CTLTYPE_STRUCT }, \
433 { "iflistl", CTLTYPE_STRUCT }, \
434}
435#endif /* __BSD_VISIBLE */
436
437/*
438 * Maximum queue length specifiable by listen.
439 */
440#define SOMAXCONN 128
441
442/*
443 * Message header for recvmsg and sendmsg calls.
444 * Used value-result for recvmsg, value only for sendmsg.
445 */
446struct msghdr {
447 void *msg_name; /* optional address */
448 socklen_t msg_namelen; /* size of address */
449 struct iovec *msg_iov; /* scatter/gather array */
450 int msg_iovlen; /* # elements in msg_iov */
451 void *msg_control; /* ancillary data, see below */
452 socklen_t msg_controllen; /* ancillary data buffer len */
453 int msg_flags; /* flags on received message */
454};
455
456#define MSG_OOB 0x1 /* process out-of-band data */
457#define MSG_PEEK 0x2 /* peek at incoming message */
458#define MSG_DONTROUTE 0x4 /* send without using routing tables */
459#define MSG_EOR 0x8 /* data completes record */
460#define MSG_TRUNC 0x10 /* data discarded before delivery */
461#define MSG_CTRUNC 0x20 /* control data lost before delivery */
462#define MSG_WAITALL 0x40 /* wait for full request or error */
463#if __POSIX_VISIBLE >= 200809
464#define MSG_NOSIGNAL 0x20000 /* do not generate SIGPIPE on EOF */
465#endif
466#if __BSD_VISIBLE
467#define MSG_DONTWAIT 0x80 /* this message should be nonblocking */
468#define MSG_EOF 0x100 /* data completes connection */
469#define MSG_NOTIFICATION 0x2000 /* SCTP notification */
470#define MSG_NBIO 0x4000 /* FIONBIO mode, used by fifofs */
471#define MSG_COMPAT 0x8000 /* used in sendit() */
472#define MSG_CMSG_CLOEXEC 0x40000 /* make received fds close-on-exec */
473#endif
474#ifdef _KERNEL
475#define MSG_SOCALLBCK 0x10000 /* for use by socket callbacks - soreceive (TCP) */
476#endif
477
478/*
479 * Header for ancillary data objects in msg_control buffer.
480 * Used for additional information with/about a datagram
481 * not expressible by flags. The format is a sequence
482 * of message elements headed by cmsghdr structures.
483 */
484struct cmsghdr {
485 socklen_t cmsg_len; /* data byte count, including hdr */
486 int cmsg_level; /* originating protocol */
487 int cmsg_type; /* protocol-specific type */
488/* followed by u_char cmsg_data[]; */
489};
490
491#if __BSD_VISIBLE
492/*
493 * While we may have more groups than this, the cmsgcred struct must
494 * be able to fit in an mbuf and we have historically supported a
495 * maximum of 16 groups.
496*/
497#define CMGROUP_MAX 16
498
499/*
500 * Credentials structure, used to verify the identity of a peer
501 * process that has sent us a message. This is allocated by the
502 * peer process but filled in by the kernel. This prevents the
503 * peer from lying about its identity. (Note that cmcred_groups[0]
504 * is the effective GID.)
505 */
506struct cmsgcred {
507 pid_t cmcred_pid; /* PID of sending process */
508 uid_t cmcred_uid; /* real UID of sending process */
509 uid_t cmcred_euid; /* effective UID of sending process */
510 gid_t cmcred_gid; /* real GID of sending process */
511 short cmcred_ngroups; /* number or groups */
512 gid_t cmcred_groups[CMGROUP_MAX]; /* groups */
513};
514
515/*
516 * Socket credentials.
517 */
518struct sockcred {
519 uid_t sc_uid; /* real user id */
520 uid_t sc_euid; /* effective user id */
521 gid_t sc_gid; /* real group id */
522 gid_t sc_egid; /* effective group id */
523 int sc_ngroups; /* number of supplemental groups */
524 gid_t sc_groups[1]; /* variable length */
525};
526
527/*
528 * Compute size of a sockcred structure with groups.
529 */
530#define SOCKCREDSIZE(ngrps) \
531 (sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1)))
532
533#endif /* __BSD_VISIBLE */
534
535/* given pointer to struct cmsghdr, return pointer to data */
536#define CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \
537 _ALIGN(sizeof(struct cmsghdr)))
538
539/* given pointer to struct cmsghdr, return pointer to next cmsghdr */
540#define CMSG_NXTHDR(mhdr, cmsg) \
541 ((char *)(cmsg) == NULL ? CMSG_FIRSTHDR(mhdr) : \
542 ((char *)(cmsg) + _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len) + \
543 _ALIGN(sizeof(struct cmsghdr)) > \
544 (char *)(mhdr)->msg_control + (mhdr)->msg_controllen) ? \
545 (struct cmsghdr *)0 : \
546 (struct cmsghdr *)(void *)((char *)(cmsg) + \
547 _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len)))
548
549/*
550 * RFC 2292 requires to check msg_controllen, in case that the kernel returns
551 * an empty list for some reasons.
552 */
553#define CMSG_FIRSTHDR(mhdr) \
554 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
555 (struct cmsghdr *)(mhdr)->msg_control : \
556 (struct cmsghdr *)NULL)
557
558#if __BSD_VISIBLE
559/* RFC 2292 additions */
560#define CMSG_SPACE(l) (_ALIGN(sizeof(struct cmsghdr)) + _ALIGN(l))
561#define CMSG_LEN(l) (_ALIGN(sizeof(struct cmsghdr)) + (l))
562#endif
563
564#ifdef _KERNEL
565#define CMSG_ALIGN(n) _ALIGN(n)
566#endif
567
568/* "Socket"-level control message types: */
569#define SCM_RIGHTS 0x01 /* access rights (array of int) */
570#if __BSD_VISIBLE
571#define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */
572#define SCM_CREDS 0x03 /* process creds (struct cmsgcred) */
573#define SCM_BINTIME 0x04 /* timestamp (struct bintime) */
574#endif
575
576#if __BSD_VISIBLE
577/*
578 * 4.3 compat sockaddr, move to compat file later
579 */
580struct osockaddr {
581 unsigned short sa_family; /* address family */
582 char sa_data[14]; /* up to 14 bytes of direct address */
583};
584
585/*
586 * 4.3-compat message header (move to compat file later).
587 */
588struct omsghdr {
589 char *msg_name; /* optional address */
590 int msg_namelen; /* size of address */
591 struct iovec *msg_iov; /* scatter/gather array */
592 int msg_iovlen; /* # elements in msg_iov */
593 char *msg_accrights; /* access rights sent/received */
594 int msg_accrightslen;
595};
596#endif
597
598/*
599 * howto arguments for shutdown(2), specified by Posix.1g.
600 */
601#define SHUT_RD 0 /* shut down the reading side */
602#define SHUT_WR 1 /* shut down the writing side */
603#define SHUT_RDWR 2 /* shut down both sides */
604
605#if __BSD_VISIBLE
606/* for SCTP */
607/* we cheat and use the SHUT_XX defines for these */
608#define PRU_FLUSH_RD SHUT_RD
609#define PRU_FLUSH_WR SHUT_WR
610#define PRU_FLUSH_RDWR SHUT_RDWR
611#endif
612
613
614#if __BSD_VISIBLE
615/*
616 * sendfile(2) header/trailer struct
617 */
618struct sf_hdtr {
619 struct iovec *headers; /* pointer to an array of header struct iovec's */
620 int hdr_cnt; /* number of header iovec's */
621 struct iovec *trailers; /* pointer to an array of trailer struct iovec's */
622 int trl_cnt; /* number of trailer iovec's */
623};
624
625/*
626 * Sendfile-specific flag(s)
627 */
628#define SF_NODISKIO 0x00000001
629#define SF_MNOWAIT 0x00000002
630#define SF_SYNC 0x00000004
|
633#ifndef _KERNEL
634
635#include <sys/cdefs.h>
636
637__BEGIN_DECLS
638int accept(int, struct sockaddr * __restrict, socklen_t * __restrict);
639int bind(int, const struct sockaddr *, socklen_t);
640int connect(int, const struct sockaddr *, socklen_t);
641#if __BSD_VISIBLE
642int accept4(int, struct sockaddr * __restrict, socklen_t * __restrict, int);
643int bindat(int, int, const struct sockaddr *, socklen_t);
644int connectat(int, int, const struct sockaddr *, socklen_t);
645#endif
646int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict);
647int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict);
648int getsockopt(int, int, int, void * __restrict, socklen_t * __restrict);
649int listen(int, int);
650ssize_t recv(int, void *, size_t, int);
651ssize_t recvfrom(int, void *, size_t, int, struct sockaddr * __restrict, socklen_t * __restrict);
652ssize_t recvmsg(int, struct msghdr *, int);
653ssize_t send(int, const void *, size_t, int);
654ssize_t sendto(int, const void *,
655 size_t, int, const struct sockaddr *, socklen_t);
656ssize_t sendmsg(int, const struct msghdr *, int);
657#if __BSD_VISIBLE
658int sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int);
659int setfib(int);
660#endif
661int setsockopt(int, int, int, const void *, socklen_t);
662int shutdown(int, int);
663int sockatmark(int);
664int socket(int, int, int);
665int socketpair(int, int, int, int *);
666__END_DECLS
667
668#endif /* !_KERNEL */
669
670#ifdef _KERNEL
671struct socket;
672
673struct tcpcb *so_sototcpcb(struct socket *so);
674struct inpcb *so_sotoinpcb(struct socket *so);
675struct sockbuf *so_sockbuf_snd(struct socket *);
676struct sockbuf *so_sockbuf_rcv(struct socket *);
677
678int so_state_get(const struct socket *);
679void so_state_set(struct socket *, int);
680
681int so_options_get(const struct socket *);
682void so_options_set(struct socket *, int);
683
684int so_error_get(const struct socket *);
685void so_error_set(struct socket *, int);
686
687int so_linger_get(const struct socket *);
688void so_linger_set(struct socket *, int);
689
690struct protosw *so_protosw_get(const struct socket *);
691void so_protosw_set(struct socket *, struct protosw *);
692
693void so_sorwakeup_locked(struct socket *so);
694void so_sowwakeup_locked(struct socket *so);
695
696void so_sorwakeup(struct socket *so);
697void so_sowwakeup(struct socket *so);
698
699void so_lock(struct socket *so);
700void so_unlock(struct socket *so);
701
702void so_listeners_apply_all(struct socket *so, void (*func)(struct socket *, void *), void *arg);
703
704#endif
705
706
707#endif /* !_SYS_SOCKET_H_ */
| 637#ifndef _KERNEL
638
639#include <sys/cdefs.h>
640
641__BEGIN_DECLS
642int accept(int, struct sockaddr * __restrict, socklen_t * __restrict);
643int bind(int, const struct sockaddr *, socklen_t);
644int connect(int, const struct sockaddr *, socklen_t);
645#if __BSD_VISIBLE
646int accept4(int, struct sockaddr * __restrict, socklen_t * __restrict, int);
647int bindat(int, int, const struct sockaddr *, socklen_t);
648int connectat(int, int, const struct sockaddr *, socklen_t);
649#endif
650int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict);
651int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict);
652int getsockopt(int, int, int, void * __restrict, socklen_t * __restrict);
653int listen(int, int);
654ssize_t recv(int, void *, size_t, int);
655ssize_t recvfrom(int, void *, size_t, int, struct sockaddr * __restrict, socklen_t * __restrict);
656ssize_t recvmsg(int, struct msghdr *, int);
657ssize_t send(int, const void *, size_t, int);
658ssize_t sendto(int, const void *,
659 size_t, int, const struct sockaddr *, socklen_t);
660ssize_t sendmsg(int, const struct msghdr *, int);
661#if __BSD_VISIBLE
662int sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int);
663int setfib(int);
664#endif
665int setsockopt(int, int, int, const void *, socklen_t);
666int shutdown(int, int);
667int sockatmark(int);
668int socket(int, int, int);
669int socketpair(int, int, int, int *);
670__END_DECLS
671
672#endif /* !_KERNEL */
673
674#ifdef _KERNEL
675struct socket;
676
677struct tcpcb *so_sototcpcb(struct socket *so);
678struct inpcb *so_sotoinpcb(struct socket *so);
679struct sockbuf *so_sockbuf_snd(struct socket *);
680struct sockbuf *so_sockbuf_rcv(struct socket *);
681
682int so_state_get(const struct socket *);
683void so_state_set(struct socket *, int);
684
685int so_options_get(const struct socket *);
686void so_options_set(struct socket *, int);
687
688int so_error_get(const struct socket *);
689void so_error_set(struct socket *, int);
690
691int so_linger_get(const struct socket *);
692void so_linger_set(struct socket *, int);
693
694struct protosw *so_protosw_get(const struct socket *);
695void so_protosw_set(struct socket *, struct protosw *);
696
697void so_sorwakeup_locked(struct socket *so);
698void so_sowwakeup_locked(struct socket *so);
699
700void so_sorwakeup(struct socket *so);
701void so_sowwakeup(struct socket *so);
702
703void so_lock(struct socket *so);
704void so_unlock(struct socket *so);
705
706void so_listeners_apply_all(struct socket *so, void (*func)(struct socket *, void *), void *arg);
707
708#endif
709
710
711#endif /* !_SYS_SOCKET_H_ */
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