1*bb0cd11aSmvs /* $OpenBSD: socketvar.h,v 1.130 2024/05/03 17:43:09 mvs Exp $ */
2ad43b9c6Smickey /* $NetBSD: socketvar.h,v 1.18 1996/02/09 18:25:38 christos Exp $ */
3df930be7Sderaadt
4df930be7Sderaadt /*-
5df930be7Sderaadt * Copyright (c) 1982, 1986, 1990, 1993
6df930be7Sderaadt * The Regents of the University of California. All rights reserved.
7df930be7Sderaadt *
8df930be7Sderaadt * Redistribution and use in source and binary forms, with or without
9df930be7Sderaadt * modification, are permitted provided that the following conditions
10df930be7Sderaadt * are met:
11df930be7Sderaadt * 1. Redistributions of source code must retain the above copyright
12df930be7Sderaadt * notice, this list of conditions and the following disclaimer.
13df930be7Sderaadt * 2. Redistributions in binary form must reproduce the above copyright
14df930be7Sderaadt * notice, this list of conditions and the following disclaimer in the
15df930be7Sderaadt * documentation and/or other materials provided with the distribution.
1629295d1cSmillert * 3. Neither the name of the University nor the names of its contributors
17df930be7Sderaadt * may be used to endorse or promote products derived from this software
18df930be7Sderaadt * without specific prior written permission.
19df930be7Sderaadt *
20df930be7Sderaadt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21df930be7Sderaadt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22df930be7Sderaadt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23df930be7Sderaadt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24df930be7Sderaadt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25df930be7Sderaadt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26df930be7Sderaadt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27df930be7Sderaadt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28df930be7Sderaadt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29df930be7Sderaadt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30df930be7Sderaadt * SUCH DAMAGE.
31df930be7Sderaadt *
32df930be7Sderaadt * @(#)socketvar.h 8.1 (Berkeley) 6/2/93
33df930be7Sderaadt */
34df930be7Sderaadt
3569690c9bSmvs #ifndef _SYS_SOCKETVAR_H_
3669690c9bSmvs #define _SYS_SOCKETVAR_H_
3769690c9bSmvs
3880b1b8fbSmvs #include <sys/event.h>
39145e6cebSprovos #include <sys/queue.h>
40e22141d5Svisa #include <sys/sigio.h> /* for struct sigio_ref */
411c3052b5Sbluhm #include <sys/task.h>
4204ba85d2Smikeb #include <sys/timeout.h>
43104c0a83Smvs #include <sys/mutex.h>
44451a9593Smvs #include <sys/rwlock.h>
45cf85347fSmvs #include <sys/refcnt.h>
46145e6cebSprovos
47de9f3fadSguenther #ifndef _SOCKLEN_T_DEFINED_
48de9f3fadSguenther #define _SOCKLEN_T_DEFINED_
49de9f3fadSguenther typedef __socklen_t socklen_t; /* length type for network syscalls */
50de9f3fadSguenther #endif
51de9f3fadSguenther
52145e6cebSprovos TAILQ_HEAD(soqhead, socket);
53df930be7Sderaadt
54df930be7Sderaadt /*
55df930be7Sderaadt * Kernel structure per socket.
56df930be7Sderaadt * Contains send and receive buffer queues,
57df930be7Sderaadt * handle on protocol and pointer to protocol
58df930be7Sderaadt * private data and error information.
59df930be7Sderaadt */
60df930be7Sderaadt struct socket {
6169dc22ffSmpi const struct protosw *so_proto; /* protocol handle */
62451a9593Smvs struct rwlock so_lock; /* this socket lock */
63cf85347fSmvs struct refcnt so_refcnt; /* references to this socket */
6469dc22ffSmpi void *so_pcb; /* protocol control block */
6569dc22ffSmpi u_int so_state; /* internal state flags SS_*, below */
66df930be7Sderaadt short so_type; /* generic type, see socket.h */
67df930be7Sderaadt short so_options; /* from socket call, see socket.h */
68df930be7Sderaadt short so_linger; /* time to linger while closing */
69df930be7Sderaadt /*
70df930be7Sderaadt * Variables for connection queueing.
71df930be7Sderaadt * Socket where accepts occur is so_head in all subsidiary sockets.
72df930be7Sderaadt * If so_head is 0, socket is not related to an accept.
73df930be7Sderaadt * For head socket so_q0 queues partially completed connections,
74df930be7Sderaadt * while so_q is a queue of connections ready to be accepted.
75df930be7Sderaadt * If a connection is aborted and it has so_head set, then
76df930be7Sderaadt * it has to be pulled out of either so_q0 or so_q.
77df930be7Sderaadt * We allow connections to queue up based on current queue lengths
78df930be7Sderaadt * and limit on number of queued connections for this socket.
79df930be7Sderaadt */
80df930be7Sderaadt struct socket *so_head; /* back pointer to accept socket */
81145e6cebSprovos struct soqhead *so_onq; /* queue (q or q0) that we're on */
82145e6cebSprovos struct soqhead so_q0; /* queue of partial connections */
83145e6cebSprovos struct soqhead so_q; /* queue of incoming connections */
84e22141d5Svisa struct sigio_ref so_sigio; /* async I/O registration */
85145e6cebSprovos TAILQ_ENTRY(socket) so_qe; /* our queue entry (q or q0) */
86df930be7Sderaadt short so_q0len; /* partials on so_q0 */
87df930be7Sderaadt short so_qlen; /* number of connections on so_q */
88df930be7Sderaadt short so_qlimit; /* max number queued connections */
89df930be7Sderaadt short so_timeo; /* connection timeout */
90df930be7Sderaadt u_long so_oobmark; /* chars to oob mark */
91e22141d5Svisa u_int so_error; /* error affecting connection */
9268d360c0Sbluhm /*
9368d360c0Sbluhm * Variables for socket splicing, allocated only when needed.
9468d360c0Sbluhm */
9568d360c0Sbluhm struct sosplice {
9668d360c0Sbluhm struct socket *ssp_socket; /* send data to drain socket */
9768d360c0Sbluhm struct socket *ssp_soback; /* back ref to source socket */
9868d360c0Sbluhm off_t ssp_len; /* number of bytes spliced */
9968d360c0Sbluhm off_t ssp_max; /* maximum number of bytes */
10068d360c0Sbluhm struct timeval ssp_idletv; /* idle timeout */
10168d360c0Sbluhm struct timeout ssp_idleto;
1021c3052b5Sbluhm struct task ssp_task; /* task for somove */
10368d360c0Sbluhm } *so_sp;
104df930be7Sderaadt /*
105df930be7Sderaadt * Variables for socket buffering.
106df930be7Sderaadt */
107df930be7Sderaadt struct sockbuf {
1081baa51d9Smvs struct rwlock sb_lock;
109104c0a83Smvs struct mutex sb_mtx;
110d89d5c74Smpi /* The following fields are all zeroed on flush. */
111d89d5c74Smpi #define sb_startzero sb_cc
112df930be7Sderaadt u_long sb_cc; /* actual chars in buffer */
113e3cfaa00Skurt u_long sb_datacc; /* data only chars in buffer */
114df930be7Sderaadt u_long sb_hiwat; /* max actual char count */
1155d991f01Sclaudio u_long sb_wat; /* default watermark */
116df930be7Sderaadt u_long sb_mbcnt; /* chars of mbufs used */
117df930be7Sderaadt u_long sb_mbmax; /* max chars of mbufs to use */
118df930be7Sderaadt long sb_lowat; /* low water mark */
119df930be7Sderaadt struct mbuf *sb_mb; /* the mbuf chain */
120a3c9d230Sprovos struct mbuf *sb_mbtail; /* the last mbuf in the chain */
121a3c9d230Sprovos struct mbuf *sb_lastrecord;/* first mbuf of last record in
122a3c9d230Sprovos socket buffer */
123d89d5c74Smpi short sb_flags; /* flags, see below */
124d89d5c74Smpi /* End area that is zeroed on flush. */
125d89d5c74Smpi #define sb_endzero sb_flags
1269e437519Smvs short sb_state; /* socket state on sockbuf */
1271a273344Smpi uint64_t sb_timeo_nsecs;/* timeout for read/write */
12880b1b8fbSmvs struct klist sb_klist; /* process selecting read/write */
129df930be7Sderaadt } so_rcv, so_snd;
130f94c55a9Sbluhm #define SB_MAX (2*1024*1024) /* default for max chars in sockbuf */
13147517268Smvs #define SB_LOCK 0x0001 /* lock on data queue */
13247517268Smvs #define SB_WANT 0x0002 /* someone is waiting to lock */
13347517268Smvs #define SB_WAIT 0x0004 /* someone is waiting for data/space */
13447517268Smvs #define SB_ASYNC 0x0010 /* ASYNC I/O, need signals */
13547517268Smvs #define SB_SPLICE 0x0020 /* buffer is splice source or drain */
13647517268Smvs #define SB_NOINTR 0x0040 /* operations not interruptible */
137*bb0cd11aSmvs #define SB_MTXLOCK 0x0080 /* sblock() doesn't need solock() */
138df930be7Sderaadt
139c4071fd1Smillert void (*so_upcall)(struct socket *so, caddr_t arg, int waitf);
140df930be7Sderaadt caddr_t so_upcallarg; /* Arg for above */
14173e0ad59Sderaadt uid_t so_euid, so_ruid; /* who opened the socket */
14273e0ad59Sderaadt gid_t so_egid, so_rgid;
14373db9b26Sdhartmei pid_t so_cpid; /* pid of process that opened socket */
144df930be7Sderaadt };
145df930be7Sderaadt
146df930be7Sderaadt /*
147df930be7Sderaadt * Socket state bits.
1489e437519Smvs *
1499e437519Smvs * NOTE: The following states should be used with corresponding socket's
1509e437519Smvs * buffer `sb_state' only:
1519e437519Smvs *
1529e437519Smvs * SS_CANTSENDMORE with `so_snd'
153a651bdb4Smvs * SS_ISSENDING with `so_snd'
1544b9bfff3Smvs * SS_CANTRCVMORE with `so_rcv'
1554b9bfff3Smvs * SS_RCVATMARK with `so_rcv'
156df930be7Sderaadt */
1579e437519Smvs
158df930be7Sderaadt #define SS_NOFDREF 0x001 /* no file table ref any more */
159df930be7Sderaadt #define SS_ISCONNECTED 0x002 /* socket connected to a peer */
160df930be7Sderaadt #define SS_ISCONNECTING 0x004 /* in process of connecting to peer */
161df930be7Sderaadt #define SS_ISDISCONNECTING 0x008 /* in process of disconnecting */
16233da1efbStb #define SS_CANTSENDMORE 0x010 /* can't send more data to peer */
163df930be7Sderaadt #define SS_CANTRCVMORE 0x020 /* can't receive more data from peer */
164df930be7Sderaadt #define SS_RCVATMARK 0x040 /* at mark on input */
165751be64bSmillert #define SS_ISDISCONNECTED 0x800 /* socket disconnected from peer */
166df930be7Sderaadt
167df930be7Sderaadt #define SS_PRIV 0x080 /* privileged for broadcast, raw... */
168f1ea8dcbSderaadt #define SS_CONNECTOUT 0x1000 /* connect, not accept, at this end */
169f620b6f9Smarkus #define SS_ISSENDING 0x2000 /* hint for lower layer */
170f062910fSsemarie #define SS_DNS 0x4000 /* created using SOCK_DNS socket(2) */
171b11de491Smvs #define SS_YP 0x8000 /* created using ypconnect(2) */
172df930be7Sderaadt
173228601a4Sclaudio #ifdef _KERNEL
17406235387Smpi
175d452b926Smvs #include <sys/protosw.h>
17606235387Smpi #include <lib/libkern/libkern.h>
17706235387Smpi
17806235387Smpi void soassertlocked(struct socket *);
179104c0a83Smvs void soassertlocked_readonly(struct socket *);
18006235387Smpi
181cf85347fSmvs static inline void
soref(struct socket * so)182cf85347fSmvs soref(struct socket *so)
183cf85347fSmvs {
184cf85347fSmvs refcnt_take(&so->so_refcnt);
185cf85347fSmvs }
186cf85347fSmvs
187cf85347fSmvs static inline void
sorele(struct socket * so)188cf85347fSmvs sorele(struct socket *so)
189cf85347fSmvs {
190cf85347fSmvs refcnt_rele_wake(&so->so_refcnt);
191cf85347fSmvs }
192cf85347fSmvs
193df930be7Sderaadt /*
194df930be7Sderaadt * Macros for sockets and socket buffering.
195df930be7Sderaadt */
196df930be7Sderaadt
19768d360c0Sbluhm #define isspliced(so) ((so)->so_sp && (so)->so_sp->ssp_socket)
19868d360c0Sbluhm #define issplicedback(so) ((so)->so_sp && (so)->so_sp->ssp_soback)
19968d360c0Sbluhm
200c75e434fSmvs static inline void
sb_mtx_lock(struct sockbuf * sb)201c75e434fSmvs sb_mtx_lock(struct sockbuf *sb)
202c75e434fSmvs {
203c75e434fSmvs if (sb->sb_flags & SB_MTXLOCK)
204c75e434fSmvs mtx_enter(&sb->sb_mtx);
205c75e434fSmvs }
206c75e434fSmvs
207c75e434fSmvs static inline void
sb_mtx_unlock(struct sockbuf * sb)208c75e434fSmvs sb_mtx_unlock(struct sockbuf *sb)
209c75e434fSmvs {
210c75e434fSmvs if (sb->sb_flags & SB_MTXLOCK)
211c75e434fSmvs mtx_leave(&sb->sb_mtx);
212c75e434fSmvs }
213c75e434fSmvs
214c75e434fSmvs void sbmtxassertlocked(struct socket *so, struct sockbuf *);
215c75e434fSmvs
216df930be7Sderaadt /*
217df930be7Sderaadt * Do we need to notify the other side when I/O is possible?
218df930be7Sderaadt */
21906235387Smpi static inline int
sb_notify(struct socket * so,struct sockbuf * sb)22006235387Smpi sb_notify(struct socket *so, struct sockbuf *sb)
22106235387Smpi {
222104c0a83Smvs int rv;
223104c0a83Smvs
22406235387Smpi soassertlocked(so);
225104c0a83Smvs
226104c0a83Smvs mtx_enter(&sb->sb_mtx);
227104c0a83Smvs rv = ((sb->sb_flags & (SB_WAIT|SB_ASYNC|SB_SPLICE)) != 0 ||
22880b1b8fbSmvs !klist_empty(&sb->sb_klist));
229104c0a83Smvs mtx_leave(&sb->sb_mtx);
230104c0a83Smvs
231104c0a83Smvs return rv;
23206235387Smpi }
233df930be7Sderaadt
234df930be7Sderaadt /*
235df930be7Sderaadt * How much space is there in a socket buffer (so->so_snd or so->so_rcv)?
236df930be7Sderaadt * This is problematical if the fields are unsigned, as the space might
237df930be7Sderaadt * still be negative (cc > hiwat or mbcnt > mbmax). Should detect
238105fe0afSmarkus * overflow and return 0.
239df930be7Sderaadt */
240104c0a83Smvs
24106235387Smpi static inline long
sbspace(struct socket * so,struct sockbuf * sb)24206235387Smpi sbspace(struct socket *so, struct sockbuf *sb)
24306235387Smpi {
24402a82712Smvs if (sb->sb_flags & SB_MTXLOCK)
24502a82712Smvs sbmtxassertlocked(so, sb);
24602a82712Smvs else
247104c0a83Smvs soassertlocked_readonly(so);
248104c0a83Smvs
24906235387Smpi return lmin(sb->sb_hiwat - sb->sb_cc, sb->sb_mbmax - sb->sb_mbcnt);
25006235387Smpi }
251df930be7Sderaadt
252df930be7Sderaadt /* do we have to send all at once on a socket? */
253df930be7Sderaadt #define sosendallatonce(so) \
254df930be7Sderaadt ((so)->so_proto->pr_flags & PR_ATOMIC)
255df930be7Sderaadt
256f620b6f9Smarkus /* are we sending on this socket? */
257f620b6f9Smarkus #define soissending(so) \
258a651bdb4Smvs ((so)->so_snd.sb_state & SS_ISSENDING)
259f620b6f9Smarkus
260df930be7Sderaadt /* can we read something from so? */
26124fc5127Smpi static inline int
soreadable(struct socket * so)26224fc5127Smpi soreadable(struct socket *so)
26324fc5127Smpi {
264104c0a83Smvs soassertlocked_readonly(so);
26524fc5127Smpi if (isspliced(so))
26624fc5127Smpi return 0;
2674b9bfff3Smvs return (so->so_rcv.sb_state & SS_CANTRCVMORE) || so->so_qlen ||
2684b9bfff3Smvs so->so_error || so->so_rcv.sb_cc >= so->so_rcv.sb_lowat;
26924fc5127Smpi }
270df930be7Sderaadt
271df930be7Sderaadt /* can we write something to so? */
272d452b926Smvs static inline int
sowriteable(struct socket * so)273d452b926Smvs sowriteable(struct socket *so)
274d452b926Smvs {
275104c0a83Smvs soassertlocked_readonly(so);
276d452b926Smvs return ((sbspace(so, &so->so_snd) >= so->so_snd.sb_lowat &&
277d452b926Smvs ((so->so_state & SS_ISCONNECTED) ||
278d452b926Smvs (so->so_proto->pr_flags & PR_CONNREQUIRED)==0)) ||
2799e437519Smvs (so->so_snd.sb_state & SS_CANTSENDMORE) || so->so_error);
280d452b926Smvs }
281df930be7Sderaadt
282df930be7Sderaadt /* adjust counters in sb reflecting allocation of m */
283d452b926Smvs static inline void
sballoc(struct socket * so,struct sockbuf * sb,struct mbuf * m)284d452b926Smvs sballoc(struct socket *so, struct sockbuf *sb, struct mbuf *m)
285d452b926Smvs {
286d452b926Smvs sb->sb_cc += m->m_len;
287d452b926Smvs if (m->m_type != MT_CONTROL && m->m_type != MT_SONAME)
288d452b926Smvs sb->sb_datacc += m->m_len;
289d452b926Smvs sb->sb_mbcnt += MSIZE;
290d452b926Smvs if (m->m_flags & M_EXT)
291d452b926Smvs sb->sb_mbcnt += m->m_ext.ext_size;
292d452b926Smvs }
293df930be7Sderaadt
294df930be7Sderaadt /* adjust counters in sb reflecting freeing of m */
295d452b926Smvs static inline void
sbfree(struct socket * so,struct sockbuf * sb,struct mbuf * m)296d452b926Smvs sbfree(struct socket *so, struct sockbuf *sb, struct mbuf *m)
297d452b926Smvs {
298d452b926Smvs sb->sb_cc -= m->m_len;
299d452b926Smvs if (m->m_type != MT_CONTROL && m->m_type != MT_SONAME)
300d452b926Smvs sb->sb_datacc -= m->m_len;
301d452b926Smvs sb->sb_mbcnt -= MSIZE;
302d452b926Smvs if (m->m_flags & M_EXT)
303d452b926Smvs sb->sb_mbcnt -= m->m_ext.ext_size;
304d452b926Smvs }
305df930be7Sderaadt
306df930be7Sderaadt /*
3079f40d4acSmvs * Flags to sblock()
3089f40d4acSmvs */
3099f40d4acSmvs #define SBL_WAIT 0x01 /* Wait if lock not immediately available. */
3109f40d4acSmvs #define SBL_NOINTR 0x02 /* Enforce non-interruptible sleep. */
3119f40d4acSmvs
3129f40d4acSmvs /*
313df930be7Sderaadt * Set lock on sockbuf sb; sleep if lock is already held.
3149f40d4acSmvs * Unless SB_NOINTR is set on sockbuf or SBL_NOINTR passed,
3159f40d4acSmvs * sleep is interruptible. Returns error without lock if
3169f40d4acSmvs * sleep is interrupted.
317df930be7Sderaadt */
318d20db565Smpi int sblock(struct socket *, struct sockbuf *, int);
319df930be7Sderaadt
320df930be7Sderaadt /* release lock on sockbuf sb */
321886de0baSmpi void sbunlock(struct socket *, struct sockbuf *);
32247517268Smvs void sbunlock_locked(struct socket *, struct sockbuf *);
323df930be7Sderaadt
324228601a4Sclaudio #define SB_EMPTY_FIXUP(sb) do { \
325228601a4Sclaudio if ((sb)->sb_mb == NULL) { \
326228601a4Sclaudio (sb)->sb_mbtail = NULL; \
327228601a4Sclaudio (sb)->sb_lastrecord = NULL; \
328228601a4Sclaudio } \
329228601a4Sclaudio } while (/*CONSTCOND*/0)
330df930be7Sderaadt
3314c366c49Smiod extern u_long sb_max;
332df930be7Sderaadt
3338f4b9dbeSprovos extern struct pool socket_pool;
3348f4b9dbeSprovos
335ad43b9c6Smickey struct mbuf;
336ad43b9c6Smickey struct sockaddr;
337ad43b9c6Smickey struct proc;
338ad43b9c6Smickey struct msghdr;
339ad43b9c6Smickey struct stat;
340cc90df54Sprovos struct knote;
341ad43b9c6Smickey
342df930be7Sderaadt /*
343df930be7Sderaadt * File operations on sockets.
344df930be7Sderaadt */
3452bd648c0Smpi int soo_read(struct file *, struct uio *, int);
3462bd648c0Smpi int soo_write(struct file *, struct uio *, int);
3472bd648c0Smpi int soo_ioctl(struct file *, u_long, caddr_t, struct proc *);
3482bd648c0Smpi int soo_kqfilter(struct file *, struct knote *);
3492bd648c0Smpi int soo_close(struct file *, struct proc *);
350c4071fd1Smillert int soo_stat(struct file *, struct stat *, struct proc *);
35106235387Smpi void sbappend(struct socket *, struct sockbuf *, struct mbuf *);
35206235387Smpi void sbappendstream(struct socket *, struct sockbuf *, struct mbuf *);
353c80d9406Sbluhm int sbappendaddr(struct socket *, struct sockbuf *,
354c80d9406Sbluhm const struct sockaddr *, struct mbuf *, struct mbuf *);
35506235387Smpi int sbappendcontrol(struct socket *, struct sockbuf *, struct mbuf *,
35606235387Smpi struct mbuf *);
35706235387Smpi void sbappendrecord(struct socket *, struct sockbuf *, struct mbuf *);
358d3407632Smpi void sbcompress(struct socket *, struct sockbuf *, struct mbuf *,
359d3407632Smpi struct mbuf *);
360287546eaSitojun struct mbuf *
36134befb6eSmvs sbcreatecontrol(const void *, size_t, int, int);
36206235387Smpi void sbdrop(struct socket *, struct sockbuf *, int);
363d3407632Smpi void sbdroprecord(struct socket *, struct sockbuf *);
36406235387Smpi void sbflush(struct socket *, struct sockbuf *);
36506235387Smpi void sbrelease(struct socket *, struct sockbuf *);
36634befb6eSmvs int sbcheckreserve(u_long, u_long);
3675d991f01Sclaudio int sbchecklowmem(void);
36806235387Smpi int sbreserve(struct socket *, struct sockbuf *, u_long);
36934befb6eSmvs int sbwait(struct socket *, struct sockbuf *);
37047517268Smvs int sbwait_locked(struct socket *, struct sockbuf *);
3718f4b9dbeSprovos void soinit(void);
372621c49c5Smvs void soabort(struct socket *);
37334befb6eSmvs int soaccept(struct socket *, struct mbuf *);
37434befb6eSmvs int sobind(struct socket *, struct mbuf *, struct proc *);
37534befb6eSmvs void socantrcvmore(struct socket *);
37634befb6eSmvs void socantsendmore(struct socket *);
3774a4dc3eaSmpi int soclose(struct socket *, int);
37834befb6eSmvs int soconnect(struct socket *, struct mbuf *);
37934befb6eSmvs int soconnect2(struct socket *, struct socket *);
38034befb6eSmvs int socreate(int, struct socket **, int, int);
38134befb6eSmvs int sodisconnect(struct socket *);
38294b08229Smvs struct socket *soalloc(const struct protosw *, int);
38334befb6eSmvs void sofree(struct socket *, int);
38434befb6eSmvs int sogetopt(struct socket *, int, int, struct mbuf *);
38534befb6eSmvs void sohasoutofband(struct socket *);
38634befb6eSmvs void soisconnected(struct socket *);
38734befb6eSmvs void soisconnecting(struct socket *);
38834befb6eSmvs void soisdisconnected(struct socket *);
38934befb6eSmvs void soisdisconnecting(struct socket *);
39034befb6eSmvs int solisten(struct socket *, int);
39162440853Sbluhm struct socket *sonewconn(struct socket *, int, int);
39234befb6eSmvs void soqinsque(struct socket *, struct socket *, int);
39334befb6eSmvs int soqremque(struct socket *, int);
39434befb6eSmvs int soreceive(struct socket *, struct mbuf **, struct uio *,
39534befb6eSmvs struct mbuf **, struct mbuf **, int *, socklen_t);
39634befb6eSmvs int soreserve(struct socket *, u_long, u_long);
39734befb6eSmvs int sosend(struct socket *, struct mbuf *, struct uio *,
39834befb6eSmvs struct mbuf *, struct mbuf *, int);
39934befb6eSmvs int sosetopt(struct socket *, int, int, struct mbuf *);
40034befb6eSmvs int soshutdown(struct socket *, int);
40134befb6eSmvs void sowakeup(struct socket *, struct sockbuf *);
402228601a4Sclaudio void sorwakeup(struct socket *);
403228601a4Sclaudio void sowwakeup(struct socket *);
404db68a6b1Stedu int sockargs(struct mbuf **, const void *, size_t, int);
405ad43b9c6Smickey
4061a273344Smpi int sosleep_nsec(struct socket *, void *, int, const char *, uint64_t);
40784245c07Sclaudio void solock(struct socket *);
4089bbbb445Sbluhm void solock_shared(struct socket *);
409cf85347fSmvs int solock_persocket(struct socket *);
410cf85347fSmvs void solock_pair(struct socket *, struct socket *);
41184245c07Sclaudio void sounlock(struct socket *);
4129bbbb445Sbluhm void sounlock_shared(struct socket *);
4131f21cadaSmpi
414c4071fd1Smillert int sendit(struct proc *, int, struct msghdr *, int, register_t *);
41534befb6eSmvs int recvit(struct proc *, int, struct msghdr *, caddr_t, register_t *);
4166ff2606cSguenther int doaccept(struct proc *, int, struct sockaddr *, socklen_t *, int,
4176ff2606cSguenther register_t *);
418ad43b9c6Smickey
419a3c9d230Sprovos #ifdef SOCKBUF_DEBUG
420a3c9d230Sprovos void sblastrecordchk(struct sockbuf *, const char *);
421a3c9d230Sprovos #define SBLASTRECORDCHK(sb, where) sblastrecordchk((sb), (where))
422a3c9d230Sprovos
423a3c9d230Sprovos void sblastmbufchk(struct sockbuf *, const char *);
424a3c9d230Sprovos #define SBLASTMBUFCHK(sb, where) sblastmbufchk((sb), (where))
425d3407632Smpi void sbcheck(struct socket *, struct sockbuf *);
426d3407632Smpi #define SBCHECK(so, sb) sbcheck((so), (sb))
427a3c9d230Sprovos #else
428a3c9d230Sprovos #define SBLASTRECORDCHK(sb, where) /* nothing */
429a3c9d230Sprovos #define SBLASTMBUFCHK(sb, where) /* nothing */
430d3407632Smpi #define SBCHECK(so, sb) /* nothing */
431a3c9d230Sprovos #endif /* SOCKBUF_DEBUG */
432a3c9d230Sprovos
433df930be7Sderaadt #endif /* _KERNEL */
43469690c9bSmvs
43569690c9bSmvs #endif /* _SYS_SOCKETVAR_H_ */
436