1 /*-
2 * Copyright (c) 2000-2001 Boris Popov
3 * 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 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Boris Popov.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD: releng/6.2/sys/netsmb/smb_trantcp.c 161225 2006-08-11 19:41:51Z jhb $");
35
36 #include <sys/param.h>
37 #include <sys/condvar.h>
38 #include <sys/kernel.h>
39 #include <sys/lock.h>
40 #include <sys/malloc.h>
41 #include <sys/mbuf.h>
42 #include <sys/poll.h>
43 #include <sys/proc.h>
44 #include <sys/protosw.h>
45 #include <sys/signalvar.h>
46 #include <sys/socket.h>
47 #include <sys/socketvar.h>
48 #include <sys/sx.h>
49 #include <sys/sysctl.h>
50 #include <sys/systm.h>
51 #include <sys/uio.h>
52
53 #include <net/if.h>
54 #include <net/route.h>
55
56 #include <netinet/in.h>
57 #include <netinet/tcp.h>
58
59 #include <sys/mchain.h>
60
61 #include <netsmb/netbios.h>
62
63 #include <netsmb/smb.h>
64 #include <netsmb/smb_conn.h>
65 #include <netsmb/smb_tran.h>
66 #include <netsmb/smb_trantcp.h>
67 #include <netsmb/smb_subr.h>
68
69 #define M_NBDATA M_PCB
70
71 static int smb_tcpsndbuf = NB_SNDQ - 1;
72 static int smb_tcprcvbuf = NB_RCVQ - 1;
73
74 SYSCTL_DECL(_net_smb);
75 SYSCTL_INT(_net_smb, OID_AUTO, tcpsndbuf, CTLFLAG_RW, &smb_tcpsndbuf, 0, "");
76 SYSCTL_INT(_net_smb, OID_AUTO, tcprcvbuf, CTLFLAG_RW, &smb_tcprcvbuf, 0, "");
77
78 #define nb_sosend(so,m,flags,td) (so)->so_proto->pr_usrreqs->pru_sosend( \
79 so, NULL, 0, m, 0, flags, td)
80
81 static int nbssn_recv(struct nbpcb *nbp, struct mbuf **mpp, int *lenp,
82 u_int8_t *rpcodep, struct thread *td);
83 static int smb_nbst_disconnect(struct smb_vc *vcp, struct thread *td);
84
85 static int
86 nb_setsockopt_int(struct socket *so, int level, int name, int val)
87 {
88 struct sockopt sopt;
89
90 bzero(&sopt, sizeof(sopt));
91 sopt.sopt_level = level;
92 sopt.sopt_name = name;
93 sopt.sopt_val = &val;
94 sopt.sopt_valsize = sizeof(val);
95 return sosetopt(so, &sopt);
96 }
97
98 static int
99 nbssn_rselect(struct nbpcb *nbp, struct timeval *tv, int events,
100 struct thread *td)
101 {
102 struct timeval atv, rtv, ttv;
103 int ncoll, timo, error, revents;
104
105 if (tv) {
106 atv = *tv;
107 if (itimerfix(&atv)) {
108 error = EINVAL;
109 goto done_noproclock;
110 }
111 getmicrouptime(&rtv);
112 timevaladd(&atv, &rtv);
113 }
114 timo = 0;
115 mtx_lock(&sellock);
116 retry:
117
118 ncoll = nselcoll;
119 mtx_lock_spin(&sched_lock);
120 td->td_flags |= TDF_SELECT;
121 mtx_unlock_spin(&sched_lock);
122 mtx_unlock(&sellock);
123
124 /* XXX: Should be done when the thread is initialized. */
125 TAILQ_INIT(&td->td_selq);
126 revents = nbp->nbp_tso->so_proto->pr_usrreqs->pru_sopoll(nbp->nbp_tso,
127 events, NULL, td);
128 mtx_lock(&sellock);
129 if (revents) {
130 error = 0;
131 goto done;
132 }
133 if (tv) {
134 getmicrouptime(&rtv);
135 if (timevalcmp(&rtv, &atv, >=)) {
136 error = EWOULDBLOCK;
137 goto done;
138 }
139 ttv = atv;
140 timevalsub(&ttv, &rtv);
141 timo = tvtohz(&ttv);
142 }
143 /*
144 * An event of our interest may occur during locking a process.
145 * In order to avoid missing the event that occurred during locking
146 * the process, test P_SELECT and rescan file descriptors if
147 * necessary.
148 */
149 mtx_lock_spin(&sched_lock);
150 if ((td->td_flags & TDF_SELECT) == 0 || nselcoll != ncoll) {
151 mtx_unlock_spin(&sched_lock);
152 goto retry;
153 }
154 mtx_unlock_spin(&sched_lock);
155
156 if (timo > 0)
157 error = cv_timedwait(&selwait, &sellock, timo);
158 else {
159 cv_wait(&selwait, &sellock);
160 error = 0;
161 }
162
163 done:
164 clear_selinfo_list(td);
165
166 mtx_lock_spin(&sched_lock);
167 td->td_flags &= ~TDF_SELECT;
168 mtx_unlock_spin(&sched_lock);
169 mtx_unlock(&sellock);
170
171 done_noproclock:
172 if (error == ERESTART)
173 return 0;
174 return error;
175 }
176
177 static int
178 nb_intr(struct nbpcb *nbp, struct proc *p)
179 {
180 return 0;
181 }
182
183 static void
184 nb_upcall(struct socket *so, void *arg, int waitflag)
185 {
186 struct nbpcb *nbp = arg;
187
188 if (arg == NULL || nbp->nbp_selectid == NULL)
189 return;
190 wakeup(nbp->nbp_selectid);
191 }
192
193 static int
194 nb_sethdr(struct mbuf *m, u_int8_t type, u_int32_t len)
195 {
196 u_int32_t *p = mtod(m, u_int32_t *);
197
198 *p = htonl((len & 0x1FFFF) | (type << 24));
199 return 0;
200 }
201
202 static int
203 nb_put_name(struct mbchain *mbp, struct sockaddr_nb *snb)
204 {
205 int error;
206 u_char seglen, *cp;
207
208 cp = snb->snb_name;
209 if (*cp == 0)
210 return EINVAL;
211 NBDEBUG("[%s]\n", cp);
212 for (;;) {
213 seglen = (*cp) + 1;
214 error = mb_put_mem(mbp, cp, seglen, MB_MSYSTEM);
215 if (error)
216 return error;
217 if (seglen == 1)
218 break;
219 cp += seglen;
220 }
221 return 0;
222 }
223
224 static int
225 nb_connect_in(struct nbpcb *nbp, struct sockaddr_in *to, struct thread *td)
226 {
227 struct socket *so;
228 int error, s;
229
230 error = socreate(AF_INET, &so, SOCK_STREAM, IPPROTO_TCP,
231 td->td_ucred, td);
232 if (error)
233 return error;
234 nbp->nbp_tso = so;
235 so->so_upcallarg = (caddr_t)nbp;
236 so->so_upcall = nb_upcall;
237 SOCKBUF_LOCK(&so->so_rcv);
238 so->so_rcv.sb_flags |= SB_UPCALL;
239 SOCKBUF_UNLOCK(&so->so_rcv);
240 so->so_rcv.sb_timeo = (5 * hz);
241 so->so_snd.sb_timeo = (5 * hz);
242 error = soreserve(so, nbp->nbp_sndbuf, nbp->nbp_rcvbuf);
243 if (error)
244 goto bad;
245 nb_setsockopt_int(so, SOL_SOCKET, SO_KEEPALIVE, 1);
246 nb_setsockopt_int(so, IPPROTO_TCP, TCP_NODELAY, 1);
247 SOCKBUF_LOCK(&so->so_rcv);
248 so->so_rcv.sb_flags &= ~SB_NOINTR;
249 SOCKBUF_UNLOCK(&so->so_rcv);
250 SOCKBUF_LOCK(&so->so_snd);
251 so->so_snd.sb_flags &= ~SB_NOINTR;
252 SOCKBUF_UNLOCK(&so->so_snd);
253 error = soconnect(so, (struct sockaddr*)to, td);
254 if (error)
255 goto bad;
256 s = splnet();
257 while ((so->so_state & SS_ISCONNECTING) && so->so_error == 0) {
258 tsleep(&so->so_timeo, PSOCK, "nbcon", 2 * hz);
259 if ((so->so_state & SS_ISCONNECTING) && so->so_error == 0 &&
260 (error = nb_intr(nbp, td->td_proc)) != 0) {
261 so->so_state &= ~SS_ISCONNECTING;
262 splx(s);
263 goto bad;
264 }
265 }
266 if (so->so_error) {
267 error = so->so_error;
268 so->so_error = 0;
269 splx(s);
270 goto bad;
271 }
272 splx(s);
273 return 0;
274 bad:
275 smb_nbst_disconnect(nbp->nbp_vc, td);
276 return error;
277 }
278
279 static int
280 nbssn_rq_request(struct nbpcb *nbp, struct thread *td)
281 {
282 struct mbchain mb, *mbp = &mb;
283 struct mdchain md, *mdp = &md;
284 struct mbuf *m0;
285 struct timeval tv;
286 struct sockaddr_in sin;
287 u_short port;
288 u_int8_t rpcode;
289 int error, rplen;
290
291 error = mb_init(mbp);
292 if (error)
293 return error;
294 mb_put_uint32le(mbp, 0);
295 nb_put_name(mbp, nbp->nbp_paddr);
296 nb_put_name(mbp, nbp->nbp_laddr);
297 nb_sethdr(mbp->mb_top, NB_SSN_REQUEST, mb_fixhdr(mbp) - 4);
298 error = nb_sosend(nbp->nbp_tso, mbp->mb_top, 0, td);
299 if (!error) {
300 nbp->nbp_state = NBST_RQSENT;
301 }
302 mb_detach(mbp);
303 mb_done(mbp);
304 if (error)
305 return error;
306 TIMESPEC_TO_TIMEVAL(&tv, &nbp->nbp_timo);
307 error = nbssn_rselect(nbp, &tv, POLLIN, td);
308 if (error == EWOULDBLOCK) { /* Timeout */
309 NBDEBUG("initial request timeout\n");
310 return ETIMEDOUT;
311 }
312 if (error) /* restart or interrupt */
313 return error;
314 error = nbssn_recv(nbp, &m0, &rplen, &rpcode, td);
315 if (error) {
316 NBDEBUG("recv() error %d\n", error);
317 return error;
318 }
319 /*
320 * Process NETBIOS reply
321 */
322 if (m0)
323 md_initm(mdp, m0);
324 error = 0;
325 do {
326 if (rpcode == NB_SSN_POSRESP) {
327 nbp->nbp_state = NBST_SESSION;
328 nbp->nbp_flags |= NBF_CONNECTED;
329 break;
330 }
331 if (rpcode != NB_SSN_RTGRESP) {
332 error = ECONNABORTED;
333 break;
334 }
335 if (rplen != 6) {
336 error = ECONNABORTED;
337 break;
338 }
339 md_get_mem(mdp, (caddr_t)&sin.sin_addr, 4, MB_MSYSTEM);
340 md_get_uint16(mdp, &port);
341 sin.sin_port = port;
342 nbp->nbp_state = NBST_RETARGET;
343 smb_nbst_disconnect(nbp->nbp_vc, td);
344 error = nb_connect_in(nbp, &sin, td);
345 if (!error)
346 error = nbssn_rq_request(nbp, td);
347 if (error) {
348 smb_nbst_disconnect(nbp->nbp_vc, td);
349 break;
350 }
351 } while(0);
352 if (m0)
353 md_done(mdp);
354 return error;
355 }
356
357 static int
358 nbssn_recvhdr(struct nbpcb *nbp, int *lenp,
359 u_int8_t *rpcodep, int flags, struct thread *td)
360 {
361 struct socket *so = nbp->nbp_tso;
362 struct uio auio;
363 struct iovec aio;
364 u_int32_t len;
365 int error;
366
367 aio.iov_base = (caddr_t)&len;
368 aio.iov_len = sizeof(len);
369 auio.uio_iov = &aio;
370 auio.uio_iovcnt = 1;
371 auio.uio_segflg = UIO_SYSSPACE;
372 auio.uio_rw = UIO_READ;
373 auio.uio_offset = 0;
374 auio.uio_resid = sizeof(len);
375 auio.uio_td = td;
376 error = so->so_proto->pr_usrreqs->pru_soreceive
377 (so, (struct sockaddr **)NULL, &auio,
378 (struct mbuf **)NULL, (struct mbuf **)NULL, &flags);
379 if (error)
380 return error;
381 if (auio.uio_resid > 0) {
382 SMBSDEBUG("short reply\n");
383 return EPIPE;
384 }
385 len = ntohl(len);
386 *rpcodep = (len >> 24) & 0xFF;
387 len &= 0x1ffff;
388 if (len > SMB_MAXPKTLEN) {
389 SMBERROR("packet too long (%d)\n", len);
390 return EFBIG;
391 }
392 *lenp = len;
393 return 0;
394 }
395
396 static int
397 nbssn_recv(struct nbpcb *nbp, struct mbuf **mpp, int *lenp,
398 u_int8_t *rpcodep, struct thread *td)
399 {
400 struct socket *so = nbp->nbp_tso;
401 struct uio auio;
402 struct mbuf *m, *tm, *im;
403 u_int8_t rpcode;
404 int len, resid;
405 int error, rcvflg;
406
407 if (so == NULL)
408 return ENOTCONN;
409
410 if (mpp)
411 *mpp = NULL;
412 m = NULL;
413 for(;;) {
414 /*
415 * Poll for a response header.
416 * If we don't have one waiting, return.
417 */
418 error = nbssn_recvhdr(nbp, &len, &rpcode, MSG_DONTWAIT, td);
419 if ((so->so_state & (SS_ISDISCONNECTING | SS_ISDISCONNECTED)) ||
420 (so->so_rcv.sb_state & SBS_CANTRCVMORE)) {
421 nbp->nbp_state = NBST_CLOSED;
422 NBDEBUG("session closed by peer\n");
423 return ECONNRESET;
424 }
425 if (error)
426 return error;
427 if (len == 0 && nbp->nbp_state != NBST_SESSION)
428 break;
429 /* no data, try again */
430 if (rpcode == NB_SSN_KEEPALIVE)
431 continue;
432
433 /*
434 * Loop, blocking, for data following the response header.
435 *
436 * Note that we can't simply block here with MSG_WAITALL for the
437 * entire response size, as it may be larger than the TCP
438 * slow-start window that the sender employs. This will result
439 * in the sender stalling until the delayed ACK is sent, then
440 * resuming slow-start, resulting in very poor performance.
441 *
442 * Instead, we never request more than NB_SORECEIVE_CHUNK
443 * bytes at a time, resulting in an ack being pushed by
444 * the TCP code at the completion of each call.
445 */
446 resid = len;
447 while (resid > 0) {
448 tm = NULL;
449 rcvflg = MSG_WAITALL;
450 bzero(&auio, sizeof(auio));
451 auio.uio_resid = min(resid, NB_SORECEIVE_CHUNK);
452 auio.uio_td = td;
453 resid -= auio.uio_resid;
454 /*
455 * Spin until we have collected everything in
456 * this chunk.
457 */
458 do {
459 rcvflg = MSG_WAITALL;
460 error = so->so_proto->pr_usrreqs->pru_soreceive
461 (so, (struct sockaddr **)NULL,
462 &auio, &tm, (struct mbuf **)NULL, &rcvflg);
463 } while (error == EWOULDBLOCK || error == EINTR ||
464 error == ERESTART);
465 if (error)
466 goto out;
467 /* short return guarantees unhappiness */
468 if (auio.uio_resid > 0) {
469 SMBERROR("packet is shorter than expected\n");
470 error = EPIPE;
471 goto out;
472 }
473 /* append received chunk to previous chunk(s) */
474 if (m == NULL) {
475 m = tm;
476 } else {
477 /*
478 * Just glue the new chain on the end.
479 * Consumer will pullup as required.
480 */
481 for (im = m; im->m_next != NULL; im = im->m_next)
482 ;
483 im->m_next = tm;
484 }
485 }
486 /* got a session/message packet? */
487 if (nbp->nbp_state == NBST_SESSION &&
488 rpcode == NB_SSN_MESSAGE)
489 break;
490 /* drop packet and try for another */
491 NBDEBUG("non-session packet %x\n", rpcode);
492 if (m) {
493 m_freem(m);
494 m = NULL;
495 }
496 }
497
498 out:
499 if (error) {
500 if (m)
501 m_freem(m);
502 return error;
503 }
504 if (mpp)
505 *mpp = m;
506 else
507 m_freem(m);
508 *lenp = len;
509 *rpcodep = rpcode;
510 return 0;
511 }
512
513 /*
514 * SMB transport interface
515 */
516 static int
517 smb_nbst_create(struct smb_vc *vcp, struct thread *td)
518 {
519 struct nbpcb *nbp;
520
521 MALLOC(nbp, struct nbpcb *, sizeof *nbp, M_NBDATA, M_WAITOK);
522 bzero(nbp, sizeof *nbp);
523 nbp->nbp_timo.tv_sec = 15; /* XXX: sysctl ? */
524 nbp->nbp_state = NBST_CLOSED;
525 nbp->nbp_vc = vcp;
526 nbp->nbp_sndbuf = smb_tcpsndbuf;
527 nbp->nbp_rcvbuf = smb_tcprcvbuf;
528 vcp->vc_tdata = nbp;
529 return 0;
530 }
531
532 static int
533 smb_nbst_done(struct smb_vc *vcp, struct thread *td)
534 {
535 struct nbpcb *nbp = vcp->vc_tdata;
536
537 if (nbp == NULL)
538 return ENOTCONN;
539 smb_nbst_disconnect(vcp, td);
540 if (nbp->nbp_laddr)
541 free(nbp->nbp_laddr, M_SONAME);
542 if (nbp->nbp_paddr)
543 free(nbp->nbp_paddr, M_SONAME);
544 free(nbp, M_NBDATA);
545 return 0;
546 }
547
548 static int
549 smb_nbst_bind(struct smb_vc *vcp, struct sockaddr *sap, struct thread *td)
550 {
551 struct nbpcb *nbp = vcp->vc_tdata;
552 struct sockaddr_nb *snb;
553 int error, slen;
554
555 NBDEBUG("\n");
556 error = EINVAL;
557 do {
558 if (nbp->nbp_flags & NBF_LOCADDR)
559 break;
560 /*
561 * It is possible to create NETBIOS name in the kernel,
562 * but nothing prevents us to do it in the user space.
563 */
564 if (sap == NULL)
565 break;
566 slen = sap->sa_len;
567 if (slen < NB_MINSALEN)
568 break;
569 snb = (struct sockaddr_nb*)sodupsockaddr(sap, M_WAITOK);
570 if (snb == NULL) {
571 error = ENOMEM;
572 break;
573 }
574 nbp->nbp_laddr = snb;
575 nbp->nbp_flags |= NBF_LOCADDR;
576 error = 0;
577 } while(0);
578 return error;
579 }
580
581 static int
582 smb_nbst_connect(struct smb_vc *vcp, struct sockaddr *sap, struct thread *td)
583 {
584 struct nbpcb *nbp = vcp->vc_tdata;
585 struct sockaddr_in sin;
586 struct sockaddr_nb *snb;
587 struct timespec ts1, ts2;
588 int error, slen;
589
590 NBDEBUG("\n");
591 if (nbp->nbp_tso != NULL)
592 return EISCONN;
593 if (nbp->nbp_laddr == NULL)
594 return EINVAL;
595 slen = sap->sa_len;
596 if (slen < NB_MINSALEN)
597 return EINVAL;
598 if (nbp->nbp_paddr) {
599 free(nbp->nbp_paddr, M_SONAME);
600 nbp->nbp_paddr = NULL;
601 }
602 snb = (struct sockaddr_nb*)sodupsockaddr(sap, M_WAITOK);
603 if (snb == NULL)
604 return ENOMEM;
605 nbp->nbp_paddr = snb;
606 sin = snb->snb_addrin;
607 getnanotime(&ts1);
608 error = nb_connect_in(nbp, &sin, td);
609 if (error)
610 return error;
611 getnanotime(&ts2);
612 timespecsub(&ts2, &ts1);
613 if (ts2.tv_sec == 0 && ts2.tv_sec == 0)
614 ts2.tv_sec = 1;
615 nbp->nbp_timo = ts2;
616 timespecadd(&nbp->nbp_timo, &ts2);
617 timespecadd(&nbp->nbp_timo, &ts2);
618 timespecadd(&nbp->nbp_timo, &ts2); /* * 4 */
619 error = nbssn_rq_request(nbp, td);
620 if (error)
621 smb_nbst_disconnect(vcp, td);
622 return error;
623 }
624
625 static int
626 smb_nbst_disconnect(struct smb_vc *vcp, struct thread *td)
627 {
628 struct nbpcb *nbp = vcp->vc_tdata;
629 struct socket *so;
630
631 if (nbp == NULL || nbp->nbp_tso == NULL)
632 return ENOTCONN;
633 if ((so = nbp->nbp_tso) != NULL) {
634 nbp->nbp_flags &= ~NBF_CONNECTED;
635 nbp->nbp_tso = (struct socket *)NULL;
636 soshutdown(so, 2);
637 soclose(so);
638 }
639 if (nbp->nbp_state != NBST_RETARGET) {
640 nbp->nbp_state = NBST_CLOSED;
641 }
642 return 0;
643 }
644
645 static int
646 smb_nbst_send(struct smb_vc *vcp, struct mbuf *m0, struct thread *td)
647 {
648 struct nbpcb *nbp = vcp->vc_tdata;
649 int error;
650
651 if (nbp->nbp_state != NBST_SESSION) {
652 error = ENOTCONN;
653 goto abort;
654 }
655 M_PREPEND(m0, 4, M_TRYWAIT);
656 if (m0 == NULL)
657 return ENOBUFS;
658 nb_sethdr(m0, NB_SSN_MESSAGE, m_fixhdr(m0) - 4);
659 error = nb_sosend(nbp->nbp_tso, m0, 0, td);
660 return error;
661 abort:
662 if (m0)
663 m_freem(m0);
664 return error;
665 }
666
667
668 static int
669 smb_nbst_recv(struct smb_vc *vcp, struct mbuf **mpp, struct thread *td)
670 {
671 struct nbpcb *nbp = vcp->vc_tdata;
672 u_int8_t rpcode;
673 int error, rplen;
674
675 nbp->nbp_flags |= NBF_RECVLOCK;
676 error = nbssn_recv(nbp, mpp, &rplen, &rpcode, td);
677 nbp->nbp_flags &= ~NBF_RECVLOCK;
678 return error;
679 }
680
681 static void
682 smb_nbst_timo(struct smb_vc *vcp)
683 {
684 return;
685 }
686
687 static void
688 smb_nbst_intr(struct smb_vc *vcp)
689 {
690 struct nbpcb *nbp = vcp->vc_tdata;
691
692 if (nbp == NULL || nbp->nbp_tso == NULL)
693 return;
694 sorwakeup(nbp->nbp_tso);
695 sowwakeup(nbp->nbp_tso);
696 }
697
698 static int
699 smb_nbst_getparam(struct smb_vc *vcp, int param, void *data)
700 {
701 struct nbpcb *nbp = vcp->vc_tdata;
702
703 switch (param) {
704 case SMBTP_SNDSZ:
705 *(int*)data = nbp->nbp_sndbuf;
706 break;
707 case SMBTP_RCVSZ:
708 *(int*)data = nbp->nbp_rcvbuf;
709 break;
710 case SMBTP_TIMEOUT:
711 *(struct timespec*)data = nbp->nbp_timo;
712 break;
713 default:
714 return EINVAL;
715 }
716 return 0;
717 }
718
719 static int
720 smb_nbst_setparam(struct smb_vc *vcp, int param, void *data)
721 {
722 struct nbpcb *nbp = vcp->vc_tdata;
723
724 switch (param) {
725 case SMBTP_SELECTID:
726 nbp->nbp_selectid = data;
727 break;
728 default:
729 return EINVAL;
730 }
731 return 0;
732 }
733
734 /*
735 * Check for fatal errors
736 */
737 static int
738 smb_nbst_fatal(struct smb_vc *vcp, int error)
739 {
740 switch (error) {
741 case ENOTCONN:
742 case ENETRESET:
743 case ECONNABORTED:
744 return 1;
745 }
746 return 0;
747 }
748
749
750 struct smb_tran_desc smb_tran_nbtcp_desc = {
751 SMBT_NBTCP,
752 smb_nbst_create, smb_nbst_done,
753 smb_nbst_bind, smb_nbst_connect, smb_nbst_disconnect,
754 smb_nbst_send, smb_nbst_recv,
755 smb_nbst_timo, smb_nbst_intr,
756 smb_nbst_getparam, smb_nbst_setparam,
757 smb_nbst_fatal
758 };
759
Cache object: 1b9ae2d4a0cd4ab9467c8ee75c90ab62
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