2 * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
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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.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#)socket.h 8.4 (Berkeley) 2/21/94
33 #ifndef _SYS_SOCKET_H_
34 #define _SYS_SOCKET_H_
36 #include <sys/cdefs.h>
37 #include <sys/_types.h>
38 #include <sys/_iovec.h>
39 #include <machine/_align.h>
42 * Definitions related to sockets: types, address families, options.
49 #ifndef _GID_T_DECLARED
50 typedef __gid_t gid_t;
51 #define _GID_T_DECLARED
54 #ifndef _OFF_T_DECLARED
55 typedef __off_t off_t;
56 #define _OFF_T_DECLARED
59 #ifndef _PID_T_DECLARED
60 typedef __pid_t pid_t;
61 #define _PID_T_DECLARED
65 #ifndef _SA_FAMILY_T_DECLARED
66 typedef __sa_family_t sa_family_t;
67 #define _SA_FAMILY_T_DECLARED
70 #ifndef _SOCKLEN_T_DECLARED
71 typedef __socklen_t socklen_t;
72 #define _SOCKLEN_T_DECLARED
75 #ifndef _SSIZE_T_DECLARED
76 typedef __ssize_t ssize_t;
77 #define _SSIZE_T_DECLARED
81 #ifndef _UID_T_DECLARED
82 typedef __uid_t uid_t;
83 #define _UID_T_DECLARED
90 #define SOCK_STREAM 1 /* stream socket */
91 #define SOCK_DGRAM 2 /* datagram socket */
92 #define SOCK_RAW 3 /* raw-protocol interface */
94 #define SOCK_RDM 4 /* reliably-delivered message */
96 #define SOCK_SEQPACKET 5 /* sequenced packet stream */
99 * Option flags per-socket.
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 */
108 #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
110 #define SO_LINGER 0x0080 /* linger on close if data present */
111 #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
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 */
119 #define SO_NO_OFFLOAD 0x4000 /* socket cannot be offloaded */
120 #define SO_NO_DDP 0x8000 /* disable direct data placement */
123 * Additional options, not kept in so_options.
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 */
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) */
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.
151 #define SO_VENDOR 0x80000000
155 * Structure used for manipulating linger option.
158 int l_onoff; /* option on/off */
159 int l_linger; /* linger time */
163 struct accept_filter_arg {
170 * Level number for (get/set)sockopt() to apply to socket itself.
172 #define SOL_SOCKET 0xffff /* options for socket level */
177 #define AF_UNSPEC 0 /* unspecified */
179 #define AF_LOCAL AF_UNIX /* local to host (pipes, portals) */
181 #define AF_UNIX 1 /* standardized name for AF_LOCAL */
182 #define AF_INET 2 /* internetwork: UDP, TCP, etc. */
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 */
212 #define AF_INET6 28 /* IPv6 */
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
219 #define AF_NETGRAPH 32 /* Netgraph sockets */
220 #define AF_SLOW 33 /* 802.3ad slow protocol */
221 #define AF_SCLUSTER 34 /* Sitara cluster protocol */
223 #define AF_BLUETOOTH 36 /* Bluetooth sockets */
224 #define AF_IEEE80211 37 /* IEEE 802.11 protocol */
227 * When allocating a new AF_ constant, please only allocate
228 * even numbered constants for FreeBSD until 134 as odd numbered AF_
229 * constants 39-133 are now reserved for vendors.
231 #define AF_VENDOR00 39
232 #define AF_VENDOR01 41
233 #define AF_VENDOR02 43
234 #define AF_VENDOR03 45
235 #define AF_VENDOR04 47
236 #define AF_VENDOR05 49
237 #define AF_VENDOR06 51
238 #define AF_VENDOR07 53
239 #define AF_VENDOR08 55
240 #define AF_VENDOR09 57
241 #define AF_VENDOR10 59
242 #define AF_VENDOR11 61
243 #define AF_VENDOR12 63
244 #define AF_VENDOR13 65
245 #define AF_VENDOR14 67
246 #define AF_VENDOR15 69
247 #define AF_VENDOR16 71
248 #define AF_VENDOR17 73
249 #define AF_VENDOR18 75
250 #define AF_VENDOR19 77
251 #define AF_VENDOR20 79
252 #define AF_VENDOR21 81
253 #define AF_VENDOR22 83
254 #define AF_VENDOR23 85
255 #define AF_VENDOR24 87
256 #define AF_VENDOR25 89
257 #define AF_VENDOR26 91
258 #define AF_VENDOR27 93
259 #define AF_VENDOR28 95
260 #define AF_VENDOR29 97
261 #define AF_VENDOR30 99
262 #define AF_VENDOR31 101
263 #define AF_VENDOR32 103
264 #define AF_VENDOR33 105
265 #define AF_VENDOR34 107
266 #define AF_VENDOR35 109
267 #define AF_VENDOR36 111
268 #define AF_VENDOR37 113
269 #define AF_VENDOR38 115
270 #define AF_VENDOR39 117
271 #define AF_VENDOR40 119
272 #define AF_VENDOR41 121
273 #define AF_VENDOR42 123
274 #define AF_VENDOR43 125
275 #define AF_VENDOR44 127
276 #define AF_VENDOR45 129
277 #define AF_VENDOR46 131
278 #define AF_VENDOR47 133
282 * Structure used by kernel to store most
286 unsigned char sa_len; /* total length */
287 sa_family_t sa_family; /* address family */
288 char sa_data[14]; /* actually longer; address value */
291 #define SOCK_MAXADDRLEN 255 /* longest possible addresses */
294 * Structure used by kernel to pass protocol
295 * information in raw sockets.
298 unsigned short sp_family; /* address family */
299 unsigned short sp_protocol; /* protocol */
303 #include <sys/_sockaddr_storage.h>
307 * Protocol families, same as address families for now.
309 #define PF_UNSPEC AF_UNSPEC
310 #define PF_LOCAL AF_LOCAL
311 #define PF_UNIX PF_LOCAL /* backward compatibility */
312 #define PF_INET AF_INET
313 #define PF_IMPLINK AF_IMPLINK
314 #define PF_PUP AF_PUP
315 #define PF_CHAOS AF_CHAOS
316 #define PF_NETBIOS AF_NETBIOS
317 #define PF_ISO AF_ISO
318 #define PF_OSI AF_ISO
319 #define PF_ECMA AF_ECMA
320 #define PF_DATAKIT AF_DATAKIT
321 #define PF_CCITT AF_CCITT
322 #define PF_SNA AF_SNA
323 #define PF_DECnet AF_DECnet
324 #define PF_DLI AF_DLI
325 #define PF_LAT AF_LAT
326 #define PF_HYLINK AF_HYLINK
327 #define PF_APPLETALK AF_APPLETALK
328 #define PF_ROUTE AF_ROUTE
329 #define PF_LINK AF_LINK
330 #define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */
331 #define PF_COIP AF_COIP
332 #define PF_CNT AF_CNT
333 #define PF_SIP AF_SIP
334 #define PF_IPX AF_IPX
335 #define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */
336 #define PF_PIP pseudo_AF_PIP
337 #define PF_ISDN AF_ISDN
338 #define PF_KEY pseudo_AF_KEY
339 #define PF_INET6 AF_INET6
340 #define PF_NATM AF_NATM
341 #define PF_ATM AF_ATM
342 #define PF_NETGRAPH AF_NETGRAPH
343 #define PF_SLOW AF_SLOW
344 #define PF_SCLUSTER AF_SCLUSTER
345 #define PF_ARP AF_ARP
346 #define PF_BLUETOOTH AF_BLUETOOTH
348 #define PF_MAX AF_MAX
351 * Definitions for network related sysctl, CTL_NET.
353 * Second level is protocol family.
354 * Third level is protocol number.
356 * Further levels are defined by the individual families below.
358 #define NET_MAXID AF_MAX
360 #define CTL_NET_NAMES { \
362 { "unix", CTLTYPE_NODE }, \
363 { "inet", CTLTYPE_NODE }, \
364 { "implink", CTLTYPE_NODE }, \
365 { "pup", CTLTYPE_NODE }, \
366 { "chaos", CTLTYPE_NODE }, \
367 { "xerox_ns", CTLTYPE_NODE }, \
368 { "iso", CTLTYPE_NODE }, \
369 { "emca", CTLTYPE_NODE }, \
370 { "datakit", CTLTYPE_NODE }, \
371 { "ccitt", CTLTYPE_NODE }, \
372 { "ibm_sna", CTLTYPE_NODE }, \
373 { "decnet", CTLTYPE_NODE }, \
374 { "dec_dli", CTLTYPE_NODE }, \
375 { "lat", CTLTYPE_NODE }, \
376 { "hylink", CTLTYPE_NODE }, \
377 { "appletalk", CTLTYPE_NODE }, \
378 { "route", CTLTYPE_NODE }, \
379 { "link_layer", CTLTYPE_NODE }, \
380 { "xtp", CTLTYPE_NODE }, \
381 { "coip", CTLTYPE_NODE }, \
382 { "cnt", CTLTYPE_NODE }, \
383 { "rtip", CTLTYPE_NODE }, \
384 { "ipx", CTLTYPE_NODE }, \
385 { "sip", CTLTYPE_NODE }, \
386 { "pip", CTLTYPE_NODE }, \
387 { "isdn", CTLTYPE_NODE }, \
388 { "key", CTLTYPE_NODE }, \
389 { "inet6", CTLTYPE_NODE }, \
390 { "natm", CTLTYPE_NODE }, \
391 { "atm", CTLTYPE_NODE }, \
392 { "hdrcomplete", CTLTYPE_NODE }, \
393 { "netgraph", CTLTYPE_NODE }, \
394 { "snp", CTLTYPE_NODE }, \
395 { "scp", CTLTYPE_NODE }, \
399 * PF_ROUTE - Routing table
401 * Three additional levels are defined:
402 * Fourth: address family, 0 is wildcard
403 * Fifth: type of info, defined below
404 * Sixth: flag(s) to mask with for NET_RT_FLAGS
406 #define NET_RT_DUMP 1 /* dump; may limit to a.f. */
407 #define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */
408 #define NET_RT_IFLIST 3 /* survey interface list */
409 #define NET_RT_IFMALIST 4 /* return multicast address list */
410 #define NET_RT_IFLISTL 5 /* Survey interface list, using 'l'en
411 * versions of msghdr structs. */
412 #define NET_RT_MAXID 6
414 #define CTL_NET_RT_NAMES { \
416 { "dump", CTLTYPE_STRUCT }, \
417 { "flags", CTLTYPE_STRUCT }, \
418 { "iflist", CTLTYPE_STRUCT }, \
419 { "ifmalist", CTLTYPE_STRUCT }, \
420 { "iflistl", CTLTYPE_STRUCT }, \
422 #endif /* __BSD_VISIBLE */
425 * Maximum queue length specifiable by listen.
427 #define SOMAXCONN 128
430 * Message header for recvmsg and sendmsg calls.
431 * Used value-result for recvmsg, value only for sendmsg.
434 void *msg_name; /* optional address */
435 socklen_t msg_namelen; /* size of address */
436 struct iovec *msg_iov; /* scatter/gather array */
437 int msg_iovlen; /* # elements in msg_iov */
438 void *msg_control; /* ancillary data, see below */
439 socklen_t msg_controllen; /* ancillary data buffer len */
440 int msg_flags; /* flags on received message */
443 #define MSG_OOB 0x1 /* process out-of-band data */
444 #define MSG_PEEK 0x2 /* peek at incoming message */
445 #define MSG_DONTROUTE 0x4 /* send without using routing tables */
446 #define MSG_EOR 0x8 /* data completes record */
447 #define MSG_TRUNC 0x10 /* data discarded before delivery */
448 #define MSG_CTRUNC 0x20 /* control data lost before delivery */
449 #define MSG_WAITALL 0x40 /* wait for full request or error */
450 #define MSG_NOTIFICATION 0x2000 /* SCTP notification */
452 #define MSG_DONTWAIT 0x80 /* this message should be nonblocking */
453 #define MSG_EOF 0x100 /* data completes connection */
454 #define MSG_NBIO 0x4000 /* FIONBIO mode, used by fifofs */
455 #define MSG_COMPAT 0x8000 /* used in sendit() */
458 #define MSG_SOCALLBCK 0x10000 /* for use by socket callbacks - soreceive (TCP) */
461 #define MSG_NOSIGNAL 0x20000 /* do not generate SIGPIPE on EOF */
465 * Header for ancillary data objects in msg_control buffer.
466 * Used for additional information with/about a datagram
467 * not expressible by flags. The format is a sequence
468 * of message elements headed by cmsghdr structures.
471 socklen_t cmsg_len; /* data byte count, including hdr */
472 int cmsg_level; /* originating protocol */
473 int cmsg_type; /* protocol-specific type */
474 /* followed by u_char cmsg_data[]; */
479 * While we may have more groups than this, the cmsgcred struct must
480 * be able to fit in an mbuf and we have historically supported a
481 * maximum of 16 groups.
483 #define CMGROUP_MAX 16
486 * Credentials structure, used to verify the identity of a peer
487 * process that has sent us a message. This is allocated by the
488 * peer process but filled in by the kernel. This prevents the
489 * peer from lying about its identity. (Note that cmcred_groups[0]
490 * is the effective GID.)
493 pid_t cmcred_pid; /* PID of sending process */
494 uid_t cmcred_uid; /* real UID of sending process */
495 uid_t cmcred_euid; /* effective UID of sending process */
496 gid_t cmcred_gid; /* real GID of sending process */
497 short cmcred_ngroups; /* number or groups */
498 gid_t cmcred_groups[CMGROUP_MAX]; /* groups */
502 * Socket credentials.
505 uid_t sc_uid; /* real user id */
506 uid_t sc_euid; /* effective user id */
507 gid_t sc_gid; /* real group id */
508 gid_t sc_egid; /* effective group id */
509 int sc_ngroups; /* number of supplemental groups */
510 gid_t sc_groups[1]; /* variable length */
514 * Compute size of a sockcred structure with groups.
516 #define SOCKCREDSIZE(ngrps) \
517 (sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1)))
519 #endif /* __BSD_VISIBLE */
521 /* given pointer to struct cmsghdr, return pointer to data */
522 #define CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \
523 _ALIGN(sizeof(struct cmsghdr)))
525 /* given pointer to struct cmsghdr, return pointer to next cmsghdr */
526 #define CMSG_NXTHDR(mhdr, cmsg) \
527 ((char *)(cmsg) == NULL ? CMSG_FIRSTHDR(mhdr) : \
528 ((char *)(cmsg) + _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len) + \
529 _ALIGN(sizeof(struct cmsghdr)) > \
530 (char *)(mhdr)->msg_control + (mhdr)->msg_controllen) ? \
531 (struct cmsghdr *)0 : \
532 (struct cmsghdr *)(void *)((char *)(cmsg) + \
533 _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len)))
536 * RFC 2292 requires to check msg_controllen, in case that the kernel returns
537 * an empty list for some reasons.
539 #define CMSG_FIRSTHDR(mhdr) \
540 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
541 (struct cmsghdr *)(mhdr)->msg_control : \
542 (struct cmsghdr *)NULL)
545 /* RFC 2292 additions */
546 #define CMSG_SPACE(l) (_ALIGN(sizeof(struct cmsghdr)) + _ALIGN(l))
547 #define CMSG_LEN(l) (_ALIGN(sizeof(struct cmsghdr)) + (l))
551 #define CMSG_ALIGN(n) _ALIGN(n)
554 /* "Socket"-level control message types: */
555 #define SCM_RIGHTS 0x01 /* access rights (array of int) */
557 #define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */
558 #define SCM_CREDS 0x03 /* process creds (struct cmsgcred) */
559 #define SCM_BINTIME 0x04 /* timestamp (struct bintime) */
564 * 4.3 compat sockaddr, move to compat file later
567 unsigned short sa_family; /* address family */
568 char sa_data[14]; /* up to 14 bytes of direct address */
572 * 4.3-compat message header (move to compat file later).
575 char *msg_name; /* optional address */
576 int msg_namelen; /* size of address */
577 struct iovec *msg_iov; /* scatter/gather array */
578 int msg_iovlen; /* # elements in msg_iov */
579 char *msg_accrights; /* access rights sent/received */
580 int msg_accrightslen;
585 * howto arguments for shutdown(2), specified by Posix.1g.
587 #define SHUT_RD 0 /* shut down the reading side */
588 #define SHUT_WR 1 /* shut down the writing side */
589 #define SHUT_RDWR 2 /* shut down both sides */
591 /* we cheat and use the SHUT_XX defines for these */
592 #define PRU_FLUSH_RD SHUT_RD
593 #define PRU_FLUSH_WR SHUT_WR
594 #define PRU_FLUSH_RDWR SHUT_RDWR
599 * sendfile(2) header/trailer struct
602 struct iovec *headers; /* pointer to an array of header struct iovec's */
603 int hdr_cnt; /* number of header iovec's */
604 struct iovec *trailers; /* pointer to an array of trailer struct iovec's */
605 int trl_cnt; /* number of trailer iovec's */
609 * Sendfile-specific flag(s)
611 #define SF_NODISKIO 0x00000001
612 #define SF_MNOWAIT 0x00000002
613 #define SF_SYNC 0x00000004
618 #include <sys/cdefs.h>
621 int accept(int, struct sockaddr * __restrict, socklen_t * __restrict);
622 int bind(int, const struct sockaddr *, socklen_t);
623 int connect(int, const struct sockaddr *, socklen_t);
624 int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict);
625 int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict);
626 int getsockopt(int, int, int, void * __restrict, socklen_t * __restrict);
627 int listen(int, int);
628 ssize_t recv(int, void *, size_t, int);
629 ssize_t recvfrom(int, void *, size_t, int, struct sockaddr * __restrict, socklen_t * __restrict);
630 ssize_t recvmsg(int, struct msghdr *, int);
631 ssize_t send(int, const void *, size_t, int);
632 ssize_t sendto(int, const void *,
633 size_t, int, const struct sockaddr *, socklen_t);
634 ssize_t sendmsg(int, const struct msghdr *, int);
636 int sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int);
639 int setsockopt(int, int, int, const void *, socklen_t);
640 int shutdown(int, int);
642 int socket(int, int, int);
643 int socketpair(int, int, int, int *);
646 #endif /* !_KERNEL */
651 struct tcpcb *so_sototcpcb(struct socket *so);
652 struct inpcb *so_sotoinpcb(struct socket *so);
653 struct sockbuf *so_sockbuf_snd(struct socket *);
654 struct sockbuf *so_sockbuf_rcv(struct socket *);
656 int so_state_get(const struct socket *);
657 void so_state_set(struct socket *, int);
659 int so_options_get(const struct socket *);
660 void so_options_set(struct socket *, int);
662 int so_error_get(const struct socket *);
663 void so_error_set(struct socket *, int);
665 int so_linger_get(const struct socket *);
666 void so_linger_set(struct socket *, int);
668 struct protosw *so_protosw_get(const struct socket *);
669 void so_protosw_set(struct socket *, struct protosw *);
671 void so_sorwakeup_locked(struct socket *so);
672 void so_sowwakeup_locked(struct socket *so);
674 void so_sorwakeup(struct socket *so);
675 void so_sowwakeup(struct socket *so);
677 void so_lock(struct socket *so);
678 void so_unlock(struct socket *so);
680 void so_listeners_apply_all(struct socket *so, void (*func)(struct socket *, void *), void *arg);
685 #endif /* !_SYS_SOCKET_H_ */