source: rtems-libbsd/freebsd/sys/sys/socket.h @ 165dd8e

4.1155-freebsd-126-freebsd-12freebsd-9.3
Last change on this file since 165dd8e was 165dd8e, checked in by Sebastian Huber <sebastian.huber@…>, on 04/08/15 at 13:37:49

Update to FreeBSD Stable/9 2015-04-08
  • Property mode set to 100644
File size: 21.0 KB
Line 
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 <rtems/bsd/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#define SO_USER_COOKIE  0x1015          /* user cookie (dummynet etc.) */
141#define SO_PROTOCOL     0x1016          /* get socket protocol (Linux name) */
142#define SO_PROTOTYPE    SO_PROTOCOL     /* alias for SO_PROTOCOL (SunOS name) */
143#endif
144
145/*
146 * Space reserved for new socket options added by third-party vendors.
147 * This range applies to all socket option levels.  New socket options
148 * in FreeBSD should always use an option value less than SO_VENDOR.
149 */
150#if __BSD_VISIBLE
151#define SO_VENDOR       0x80000000
152#endif
153
154/*
155 * Structure used for manipulating linger option.
156 */
157struct linger {
158        int     l_onoff;                /* option on/off */
159        int     l_linger;               /* linger time */
160};
161
162#if __BSD_VISIBLE
163struct accept_filter_arg {
164        char    af_name[16];
165        char    af_arg[256-16];
166};
167#endif
168
169/*
170 * Level number for (get/set)sockopt() to apply to socket itself.
171 */
172#define SOL_SOCKET      0xffff          /* options for socket level */
173
174/*
175 * Address families.
176 */
177#define AF_UNSPEC       0               /* unspecified */
178#if __BSD_VISIBLE
179#define AF_LOCAL        AF_UNIX         /* local to host (pipes, portals) */
180#endif
181#define AF_UNIX         1               /* standardized name for AF_LOCAL */
182#define AF_INET         2               /* internetwork: UDP, TCP, etc. */
183#if __BSD_VISIBLE
184#define AF_IMPLINK      3               /* arpanet imp addresses */
185#define AF_PUP          4               /* pup protocols: e.g. BSP */
186#define AF_CHAOS        5               /* mit CHAOS protocols */
187#define AF_NETBIOS      6               /* SMB protocols */
188#define AF_ISO          7               /* ISO protocols */
189#define AF_OSI          AF_ISO
190#define AF_ECMA         8               /* European computer manufacturers */
191#define AF_DATAKIT      9               /* datakit protocols */
192#define AF_CCITT        10              /* CCITT protocols, X.25 etc */
193#define AF_SNA          11              /* IBM SNA */
194#define AF_DECnet       12              /* DECnet */
195#define AF_DLI          13              /* DEC Direct data link interface */
196#define AF_LAT          14              /* LAT */
197#define AF_HYLINK       15              /* NSC Hyperchannel */
198#define AF_APPLETALK    16              /* Apple Talk */
199#define AF_ROUTE        17              /* Internal Routing Protocol */
200#define AF_LINK         18              /* Link layer interface */
201#define pseudo_AF_XTP   19              /* eXpress Transfer Protocol (no AF) */
202#define AF_COIP         20              /* connection-oriented IP, aka ST II */
203#define AF_CNT          21              /* Computer Network Technology */
204#define pseudo_AF_RTIP  22              /* Help Identify RTIP packets */
205#define AF_IPX          23              /* Novell Internet Protocol */
206#define AF_SIP          24              /* Simple Internet Protocol */
207#define pseudo_AF_PIP   25              /* Help Identify PIP packets */
208#define AF_ISDN         26              /* Integrated Services Digital Network*/
209#define AF_E164         AF_ISDN         /* CCITT E.164 recommendation */
210#define pseudo_AF_KEY   27              /* Internal key-management function */
211#endif
212#define AF_INET6        28              /* IPv6 */
213#if __BSD_VISIBLE
214#define AF_NATM         29              /* native ATM access */
215#define AF_ATM          30              /* ATM */
216#define pseudo_AF_HDRCMPLT 31           /* Used by BPF to not rewrite headers
217                                         * in interface output routine
218                                         */
219#define AF_NETGRAPH     32              /* Netgraph sockets */
220#define AF_SLOW         33              /* 802.3ad slow protocol */
221#define AF_SCLUSTER     34              /* Sitara cluster protocol */
222#define AF_ARP          35
223#define AF_BLUETOOTH    36              /* Bluetooth sockets */
224#define AF_IEEE80211    37              /* IEEE 802.11 protocol */
225#define AF_INET_SDP     40              /* OFED Socket Direct Protocol ipv4 */
226#define AF_INET6_SDP    42              /* OFED Socket Direct Protocol ipv6 */
227#define AF_MAX          42
228/*
229 * When allocating a new AF_ constant, please only allocate
230 * even numbered constants for FreeBSD until 134 as odd numbered AF_
231 * constants 39-133 are now reserved for vendors.
232 */
233#define AF_VENDOR00 39
234#define AF_VENDOR01 41
235#define AF_VENDOR02 43
236#define AF_VENDOR03 45
237#define AF_VENDOR04 47
238#define AF_VENDOR05 49
239#define AF_VENDOR06 51
240#define AF_VENDOR07 53
241#define AF_VENDOR08 55
242#define AF_VENDOR09 57
243#define AF_VENDOR10 59
244#define AF_VENDOR11 61
245#define AF_VENDOR12 63
246#define AF_VENDOR13 65
247#define AF_VENDOR14 67
248#define AF_VENDOR15 69
249#define AF_VENDOR16 71
250#define AF_VENDOR17 73
251#define AF_VENDOR18 75
252#define AF_VENDOR19 77
253#define AF_VENDOR20 79
254#define AF_VENDOR21 81
255#define AF_VENDOR22 83
256#define AF_VENDOR23 85
257#define AF_VENDOR24 87
258#define AF_VENDOR25 89
259#define AF_VENDOR26 91
260#define AF_VENDOR27 93
261#define AF_VENDOR28 95
262#define AF_VENDOR29 97
263#define AF_VENDOR30 99
264#define AF_VENDOR31 101
265#define AF_VENDOR32 103
266#define AF_VENDOR33 105
267#define AF_VENDOR34 107
268#define AF_VENDOR35 109
269#define AF_VENDOR36 111
270#define AF_VENDOR37 113
271#define AF_VENDOR38 115
272#define AF_VENDOR39 117
273#define AF_VENDOR40 119
274#define AF_VENDOR41 121
275#define AF_VENDOR42 123
276#define AF_VENDOR43 125
277#define AF_VENDOR44 127
278#define AF_VENDOR45 129
279#define AF_VENDOR46 131
280#define AF_VENDOR47 133
281#endif
282
283/*
284 * Structure used by kernel to store most
285 * addresses.
286 */
287struct sockaddr {
288        unsigned char   sa_len;         /* total length */
289        sa_family_t     sa_family;      /* address family */
290        char            sa_data[14];    /* actually longer; address value */
291};
292#if __BSD_VISIBLE
293#define SOCK_MAXADDRLEN 255             /* longest possible addresses */
294
295/*
296 * Structure used by kernel to pass protocol
297 * information in raw sockets.
298 */
299struct sockproto {
300        unsigned short  sp_family;              /* address family */
301        unsigned short  sp_protocol;            /* protocol */
302};
303#endif
304
305#include <sys/_sockaddr_storage.h>
306
307#if __BSD_VISIBLE
308/*
309 * Protocol families, same as address families for now.
310 */
311#define PF_UNSPEC       AF_UNSPEC
312#define PF_LOCAL        AF_LOCAL
313#define PF_UNIX         PF_LOCAL        /* backward compatibility */
314#define PF_INET         AF_INET
315#define PF_IMPLINK      AF_IMPLINK
316#define PF_PUP          AF_PUP
317#define PF_CHAOS        AF_CHAOS
318#define PF_NETBIOS      AF_NETBIOS
319#define PF_ISO          AF_ISO
320#define PF_OSI          AF_ISO
321#define PF_ECMA         AF_ECMA
322#define PF_DATAKIT      AF_DATAKIT
323#define PF_CCITT        AF_CCITT
324#define PF_SNA          AF_SNA
325#define PF_DECnet       AF_DECnet
326#define PF_DLI          AF_DLI
327#define PF_LAT          AF_LAT
328#define PF_HYLINK       AF_HYLINK
329#define PF_APPLETALK    AF_APPLETALK
330#define PF_ROUTE        AF_ROUTE
331#define PF_LINK         AF_LINK
332#define PF_XTP          pseudo_AF_XTP   /* really just proto family, no AF */
333#define PF_COIP         AF_COIP
334#define PF_CNT          AF_CNT
335#define PF_SIP          AF_SIP
336#define PF_IPX          AF_IPX
337#define PF_RTIP         pseudo_AF_RTIP  /* same format as AF_INET */
338#define PF_PIP          pseudo_AF_PIP
339#define PF_ISDN         AF_ISDN
340#define PF_KEY          pseudo_AF_KEY
341#define PF_INET6        AF_INET6
342#define PF_NATM         AF_NATM
343#define PF_ATM          AF_ATM
344#define PF_NETGRAPH     AF_NETGRAPH
345#define PF_SLOW         AF_SLOW
346#define PF_SCLUSTER     AF_SCLUSTER
347#define PF_ARP          AF_ARP
348#define PF_BLUETOOTH    AF_BLUETOOTH
349#define PF_INET_SDP     AF_INET_SDP
350#define PF_INET6_SDP    AF_INET6_SDP
351
352#define PF_MAX          AF_MAX
353
354/*
355 * Definitions for network related sysctl, CTL_NET.
356 *
357 * Second level is protocol family.
358 * Third level is protocol number.
359 *
360 * Further levels are defined by the individual families below.
361 */
362#define NET_MAXID       AF_MAX
363
364#define CTL_NET_NAMES { \
365        { 0, 0 }, \
366        { "unix", CTLTYPE_NODE }, \
367        { "inet", CTLTYPE_NODE }, \
368        { "implink", CTLTYPE_NODE }, \
369        { "pup", CTLTYPE_NODE }, \
370        { "chaos", CTLTYPE_NODE }, \
371        { "xerox_ns", CTLTYPE_NODE }, \
372        { "iso", CTLTYPE_NODE }, \
373        { "emca", CTLTYPE_NODE }, \
374        { "datakit", CTLTYPE_NODE }, \
375        { "ccitt", CTLTYPE_NODE }, \
376        { "ibm_sna", CTLTYPE_NODE }, \
377        { "decnet", CTLTYPE_NODE }, \
378        { "dec_dli", CTLTYPE_NODE }, \
379        { "lat", CTLTYPE_NODE }, \
380        { "hylink", CTLTYPE_NODE }, \
381        { "appletalk", CTLTYPE_NODE }, \
382        { "route", CTLTYPE_NODE }, \
383        { "link_layer", CTLTYPE_NODE }, \
384        { "xtp", CTLTYPE_NODE }, \
385        { "coip", CTLTYPE_NODE }, \
386        { "cnt", CTLTYPE_NODE }, \
387        { "rtip", CTLTYPE_NODE }, \
388        { "ipx", CTLTYPE_NODE }, \
389        { "sip", CTLTYPE_NODE }, \
390        { "pip", CTLTYPE_NODE }, \
391        { "isdn", CTLTYPE_NODE }, \
392        { "key", CTLTYPE_NODE }, \
393        { "inet6", CTLTYPE_NODE }, \
394        { "natm", CTLTYPE_NODE }, \
395        { "atm", CTLTYPE_NODE }, \
396        { "hdrcomplete", CTLTYPE_NODE }, \
397        { "netgraph", CTLTYPE_NODE }, \
398        { "snp", CTLTYPE_NODE }, \
399        { "scp", CTLTYPE_NODE }, \
400}
401
402/*
403 * PF_ROUTE - Routing table
404 *
405 * Three additional levels are defined:
406 *      Fourth: address family, 0 is wildcard
407 *      Fifth: type of info, defined below
408 *      Sixth: flag(s) to mask with for NET_RT_FLAGS
409 */
410#define NET_RT_DUMP     1               /* dump; may limit to a.f. */
411#define NET_RT_FLAGS    2               /* by flags, e.g. RESOLVING */
412#define NET_RT_IFLIST   3               /* survey interface list */
413#define NET_RT_IFMALIST 4               /* return multicast address list */
414#define NET_RT_IFLISTL  5               /* Survey interface list, using 'l'en
415                                         * versions of msghdr structs. */
416#define NET_RT_MAXID    6
417
418#define CTL_NET_RT_NAMES { \
419        { 0, 0 }, \
420        { "dump", CTLTYPE_STRUCT }, \
421        { "flags", CTLTYPE_STRUCT }, \
422        { "iflist", CTLTYPE_STRUCT }, \
423        { "ifmalist", CTLTYPE_STRUCT }, \
424        { "iflistl", CTLTYPE_STRUCT }, \
425}
426#endif /* __BSD_VISIBLE */
427
428/*
429 * Maximum queue length specifiable by listen.
430 */
431#define SOMAXCONN       128
432
433/*
434 * Message header for recvmsg and sendmsg calls.
435 * Used value-result for recvmsg, value only for sendmsg.
436 */
437struct msghdr {
438        void            *msg_name;              /* optional address */
439        socklen_t        msg_namelen;           /* size of address */
440        struct iovec    *msg_iov;               /* scatter/gather array */
441        int              msg_iovlen;            /* # elements in msg_iov */
442        void            *msg_control;           /* ancillary data, see below */
443        socklen_t        msg_controllen;        /* ancillary data buffer len */
444        int              msg_flags;             /* flags on received message */
445};
446
447#define MSG_OOB         0x1             /* process out-of-band data */
448#define MSG_PEEK        0x2             /* peek at incoming message */
449#define MSG_DONTROUTE   0x4             /* send without using routing tables */
450#define MSG_EOR         0x8             /* data completes record */
451#define MSG_TRUNC       0x10            /* data discarded before delivery */
452#define MSG_CTRUNC      0x20            /* control data lost before delivery */
453#define MSG_WAITALL     0x40            /* wait for full request or error */
454#define MSG_NOTIFICATION 0x2000         /* SCTP notification */
455#if __BSD_VISIBLE
456#define MSG_DONTWAIT    0x80            /* this message should be nonblocking */
457#define MSG_EOF         0x100           /* data completes connection */
458#define MSG_NBIO        0x4000          /* FIONBIO mode, used by fifofs */
459#define MSG_COMPAT      0x8000          /* used in sendit() */
460#endif
461#ifdef _KERNEL
462#define MSG_SOCALLBCK   0x10000         /* for use by socket callbacks - soreceive (TCP) */
463#endif
464#if __BSD_VISIBLE
465#define MSG_NOSIGNAL    0x20000         /* do not generate SIGPIPE on EOF */
466#endif
467
468/*
469 * Header for ancillary data objects in msg_control buffer.
470 * Used for additional information with/about a datagram
471 * not expressible by flags.  The format is a sequence
472 * of message elements headed by cmsghdr structures.
473 */
474struct cmsghdr {
475        socklen_t       cmsg_len;               /* data byte count, including hdr */
476        int             cmsg_level;             /* originating protocol */
477        int             cmsg_type;              /* protocol-specific type */
478/* followed by  u_char  cmsg_data[]; */
479};
480
481#if __BSD_VISIBLE
482/*
483 * While we may have more groups than this, the cmsgcred struct must
484 * be able to fit in an mbuf and we have historically supported a
485 * maximum of 16 groups.
486*/
487#define CMGROUP_MAX 16
488
489/*
490 * Credentials structure, used to verify the identity of a peer
491 * process that has sent us a message. This is allocated by the
492 * peer process but filled in by the kernel. This prevents the
493 * peer from lying about its identity. (Note that cmcred_groups[0]
494 * is the effective GID.)
495 */
496struct cmsgcred {
497        pid_t   cmcred_pid;             /* PID of sending process */
498        uid_t   cmcred_uid;             /* real UID of sending process */
499        uid_t   cmcred_euid;            /* effective UID of sending process */
500        gid_t   cmcred_gid;             /* real GID of sending process */
501        short   cmcred_ngroups;         /* number or groups */
502        gid_t   cmcred_groups[CMGROUP_MAX];     /* groups */
503};
504
505/*
506 * Socket credentials.
507 */
508struct sockcred {
509        uid_t   sc_uid;                 /* real user id */
510        uid_t   sc_euid;                /* effective user id */
511        gid_t   sc_gid;                 /* real group id */
512        gid_t   sc_egid;                /* effective group id */
513        int     sc_ngroups;             /* number of supplemental groups */
514        gid_t   sc_groups[1];           /* variable length */
515};
516
517/*
518 * Compute size of a sockcred structure with groups.
519 */
520#define SOCKCREDSIZE(ngrps) \
521        (sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1)))
522
523#endif /* __BSD_VISIBLE */
524
525/* given pointer to struct cmsghdr, return pointer to data */
526#define CMSG_DATA(cmsg)         ((unsigned char *)(cmsg) + \
527                                 _ALIGN(sizeof(struct cmsghdr)))
528
529/* given pointer to struct cmsghdr, return pointer to next cmsghdr */
530#define CMSG_NXTHDR(mhdr, cmsg) \
531        ((char *)(cmsg) == NULL ? CMSG_FIRSTHDR(mhdr) : \
532            ((char *)(cmsg) + _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len) + \
533          _ALIGN(sizeof(struct cmsghdr)) > \
534            (char *)(mhdr)->msg_control + (mhdr)->msg_controllen) ? \
535            (struct cmsghdr *)0 : \
536            (struct cmsghdr *)(void *)((char *)(cmsg) + \
537            _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len)))
538
539/*
540 * RFC 2292 requires to check msg_controllen, in case that the kernel returns
541 * an empty list for some reasons.
542 */
543#define CMSG_FIRSTHDR(mhdr) \
544        ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
545         (struct cmsghdr *)(mhdr)->msg_control : \
546         (struct cmsghdr *)NULL)
547
548#if __BSD_VISIBLE
549/* RFC 2292 additions */
550#define CMSG_SPACE(l)           (_ALIGN(sizeof(struct cmsghdr)) + _ALIGN(l))
551#define CMSG_LEN(l)             (_ALIGN(sizeof(struct cmsghdr)) + (l))
552#endif
553
554#ifdef _KERNEL
555#define CMSG_ALIGN(n)   _ALIGN(n)
556#endif
557
558/* "Socket"-level control message types: */
559#define SCM_RIGHTS      0x01            /* access rights (array of int) */
560#if __BSD_VISIBLE
561#define SCM_TIMESTAMP   0x02            /* timestamp (struct timeval) */
562#define SCM_CREDS       0x03            /* process creds (struct cmsgcred) */
563#define SCM_BINTIME     0x04            /* timestamp (struct bintime) */
564#endif
565
566#if __BSD_VISIBLE
567/*
568 * 4.3 compat sockaddr, move to compat file later
569 */
570struct osockaddr {
571        unsigned short sa_family;       /* address family */
572        char    sa_data[14];            /* up to 14 bytes of direct address */
573};
574
575/*
576 * 4.3-compat message header (move to compat file later).
577 */
578struct omsghdr {
579        char    *msg_name;              /* optional address */
580        int     msg_namelen;            /* size of address */
581        struct  iovec *msg_iov;         /* scatter/gather array */
582        int     msg_iovlen;             /* # elements in msg_iov */
583        char    *msg_accrights;         /* access rights sent/received */
584        int     msg_accrightslen;
585};
586#endif
587
588/*
589 * howto arguments for shutdown(2), specified by Posix.1g.
590 */
591#define SHUT_RD         0               /* shut down the reading side */
592#define SHUT_WR         1               /* shut down the writing side */
593#define SHUT_RDWR       2               /* shut down both sides */
594
595/* we cheat and use the SHUT_XX defines for these */
596#define PRU_FLUSH_RD     SHUT_RD
597#define PRU_FLUSH_WR     SHUT_WR
598#define PRU_FLUSH_RDWR   SHUT_RDWR
599
600
601#if __BSD_VISIBLE
602/*
603 * sendfile(2) header/trailer struct
604 */
605struct sf_hdtr {
606        struct iovec *headers;  /* pointer to an array of header struct iovec's */
607        int hdr_cnt;            /* number of header iovec's */
608        struct iovec *trailers; /* pointer to an array of trailer struct iovec's */
609        int trl_cnt;            /* number of trailer iovec's */
610};
611
612/*
613 * Sendfile-specific flag(s)
614 */
615#define SF_NODISKIO     0x00000001
616#define SF_MNOWAIT      0x00000002
617#define SF_SYNC         0x00000004
618#endif
619
620#ifndef _KERNEL
621
622#include <sys/cdefs.h>
623
624__BEGIN_DECLS
625int     accept(int, struct sockaddr * __restrict, socklen_t * __restrict);
626int     bind(int, const struct sockaddr *, socklen_t);
627int     connect(int, const struct sockaddr *, socklen_t);
628int     getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict);
629int     getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict);
630int     getsockopt(int, int, int, void * __restrict, socklen_t * __restrict);
631int     listen(int, int);
632ssize_t recv(int, void *, size_t, int);
633ssize_t recvfrom(int, void *, size_t, int, struct sockaddr * __restrict, socklen_t * __restrict);
634ssize_t recvmsg(int, struct msghdr *, int);
635ssize_t send(int, const void *, size_t, int);
636ssize_t sendto(int, const void *,
637            size_t, int, const struct sockaddr *, socklen_t);
638ssize_t sendmsg(int, const struct msghdr *, int);
639#if __BSD_VISIBLE
640int     sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int);
641int     setfib(int);
642#endif
643int     setsockopt(int, int, int, const void *, socklen_t);
644int     shutdown(int, int);
645int     sockatmark(int);
646int     socket(int, int, int);
647int     socketpair(int, int, int, int *);
648__END_DECLS
649
650#endif /* !_KERNEL */
651
652#ifdef _KERNEL
653struct socket;
654
655struct tcpcb *so_sototcpcb(struct socket *so);
656struct inpcb *so_sotoinpcb(struct socket *so);
657struct sockbuf *so_sockbuf_snd(struct socket *);
658struct sockbuf *so_sockbuf_rcv(struct socket *);
659
660int so_state_get(const struct socket *);
661void so_state_set(struct socket *, int);
662
663int so_options_get(const struct socket *);
664void so_options_set(struct socket *, int);
665
666int so_error_get(const struct socket *);
667void so_error_set(struct socket *, int);
668
669int so_linger_get(const struct socket *);
670void so_linger_set(struct socket *, int);
671
672struct protosw *so_protosw_get(const struct socket *);
673void so_protosw_set(struct socket *, struct protosw *);
674
675void so_sorwakeup_locked(struct socket *so);
676void so_sowwakeup_locked(struct socket *so);
677
678void so_sorwakeup(struct socket *so);
679void so_sowwakeup(struct socket *so);
680
681void so_lock(struct socket *so);
682void so_unlock(struct socket *so);
683
684void so_listeners_apply_all(struct socket *so, void (*func)(struct socket *, void *), void *arg);
685
686#endif
687
688
689#endif /* !_SYS_SOCKET_H_ */
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