Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
/*	$NetBSD: autofs_solaris_v1.c,v 1.1.1.3 2015/01/17 16:34:16 christos Exp $	*/

/*
 * Copyright (c) 1999-2003 Ion Badulescu
 * Copyright (c) 1997-2014 Erez Zadok
 * Copyright (c) 1990 Jan-Simon Pendry
 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Jan-Simon Pendry at Imperial College, London.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *
 * File: am-utils/conf/autofs/autofs_solaris_v1.c
 *
 */

/*
 * Automounter filesystem
 */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
#include <am_defs.h>
#include <amd.h>

#ifdef HAVE_FS_AUTOFS

/*
 * MACROS:
 */
#ifndef AUTOFS_NULL
# define AUTOFS_NULL	NULLPROC
#endif /* not AUTOFS_NULL */

/*
 * STRUCTURES:
 */

/*
 * VARIABLES:
 */

/* forward declarations */
# ifndef HAVE_XDR_MNTREQUEST
bool_t xdr_mntrequest(XDR *xdrs, mntrequest *objp);
# endif /* not HAVE_XDR_MNTREQUEST */
# ifndef HAVE_XDR_MNTRES
bool_t xdr_mntres(XDR *xdrs, mntres *objp);
# endif /* not HAVE_XDR_MNTRES */
# ifndef HAVE_XDR_UMNTREQUEST
bool_t xdr_umntrequest(XDR *xdrs, umntrequest *objp);
# endif /* not HAVE_XDR_UMNTREQUEST */
# ifndef HAVE_XDR_UMNTRES
bool_t xdr_umntres(XDR *xdrs, umntres *objp);
# endif /* not HAVE_XDR_UMNTRES */
static int autofs_mount_1_req(struct mntrequest *mr, struct mntres *result, struct authunix_parms *cred, SVCXPRT *transp);
static int autofs_unmount_1_req(struct umntrequest *ur, struct umntres *result, struct authunix_parms *cred, SVCXPRT *transp);

/****************************************************************************
 *** VARIABLES                                                            ***
 ****************************************************************************/

/****************************************************************************
 *** FUNCTIONS                                                            ***
 ****************************************************************************/

/*
 * AUTOFS XDR FUNCTIONS:
 */

#ifndef HAVE_XDR_MNTREQUEST
bool_t
xdr_mntrequest(XDR *xdrs, mntrequest *objp)
{
  if (amuDebug(D_XDRTRACE))
    plog(XLOG_DEBUG, "xdr_mntrequest:");

  if (!xdr_string(xdrs, &objp->name, A_MAXNAME))
    return (FALSE);

  if (!xdr_string(xdrs, &objp->map, A_MAXNAME))
    return (FALSE);

  if (!xdr_string(xdrs, &objp->opts, A_MAXOPTS))
    return (FALSE);

  if (!xdr_string(xdrs, &objp->path, A_MAXPATH))
    return (FALSE);

  return (TRUE);
}
#endif /* not HAVE_XDR_MNTREQUEST */


#ifndef HAVE_XDR_MNTRES
bool_t
xdr_mntres(XDR *xdrs, mntres *objp)
{
  if (amuDebug(D_XDRTRACE))
    plog(XLOG_DEBUG, "xdr_mntres:");

  if (!xdr_int(xdrs, &objp->status))
    return (FALSE);

  return (TRUE);
}
# endif /* not HAVE_XDR_MNTRES */


#ifndef HAVE_XDR_UMNTREQUEST
bool_t
xdr_umntrequest(XDR *xdrs, umntrequest *objp)
{
  if (amuDebug(D_XDRTRACE))
    plog(XLOG_DEBUG, "xdr_umntrequest:");

  if (!xdr_int(xdrs, (int *) &objp->isdirect))
    return (FALSE);

  if (!xdr_u_int(xdrs, (u_int *) &objp->devid))
    return (FALSE);

#ifdef HAVE_UMNTREQUEST_RDEVID
  if (!xdr_u_long(xdrs, &objp->rdevid))
    return (FALSE);
#endif /* HAVE_UMNTREQUEST_RDEVID */

  if (!xdr_pointer(xdrs, (char **) &objp->next, sizeof(umntrequest), (XDRPROC_T_TYPE) xdr_umntrequest))
    return (FALSE);

  return (TRUE);
}
#endif /* not HAVE_XDR_UMNTREQUEST */


#ifndef HAVE_XDR_UMNTRES
bool_t
xdr_umntres(XDR *xdrs, umntres *objp)
{
  if (amuDebug(D_XDRTRACE))
    plog(XLOG_DEBUG, "xdr_mntres:");

  if (!xdr_int(xdrs, &objp->status))
    return (FALSE);

  return (TRUE);
}
#endif /* not HAVE_XDR_UMNTRES */


/*
 * AUTOFS RPC methods
 */

static int
autofs_mount_1_req(struct mntrequest *m,
		   struct mntres *res,
		   struct authunix_parms *cred,
		   SVCXPRT *transp)
{
  int err = 0;
  int isdirect = 0;
  am_node *mp, *ap;
  mntfs *mf;

  dlog("MOUNT REQUEST: name=%s map=%s opts=%s path=%s",
       m->name, m->map, m->opts, m->path);

  /* find the effective uid/gid from RPC request */
  xsnprintf(opt_uid, sizeof(uid_str), "%d", (int) cred->aup_uid);
  xsnprintf(opt_gid, sizeof(gid_str), "%d", (int) cred->aup_gid);

  mp = find_ap(m->path);
  if (!mp) {
    plog(XLOG_ERROR, "map %s not found", m->path);
    err = ENOENT;
    goto out;
  }

  mf = mp->am_al->al_mnt;
  isdirect = (mf->mf_fsflags & FS_DIRECT) ? 1 : 0;
  ap = mf->mf_ops->lookup_child(mp, m->name + isdirect, &err, VLOOK_CREATE);
  if (ap && err < 0)
    ap = mf->mf_ops->mount_child(ap, &err);
  if (ap == NULL) {
    if (err < 0) {
      /* we're working on it */
      amd_stats.d_drops++;
      return 1;
    }
    err = ENOENT;
    goto out;
  }

out:
  if (err) {
    if (isdirect) {
      /* direct mount */
      plog(XLOG_ERROR, "mount of %s failed", m->path);
    } else {
      /* indirect mount */
      plog(XLOG_ERROR, "mount of %s/%s failed", m->path, m->name);
    }
  }

  dlog("MOUNT REPLY: status=%d (%s)", err, strerror(err));

  res->status = err;
  return 0;
}


static int
autofs_unmount_1_req(struct umntrequest *ul,
		     struct umntres *res,
		     struct authunix_parms *cred,
		     SVCXPRT *transp)
{
  int mapno, err;
  am_node *mp = NULL;

  dlog("UNMOUNT REQUEST: dev=%lx rdev=%lx %s",
       (u_long) ul->devid,
       (u_long) ul->rdevid,
       ul->isdirect ? "direct" : "indirect");

  /* by default, and if not found, succeed */
  res->status = 0;

  for (mapno = 0; ; mapno++) {
    mp = get_exported_ap(mapno);
    if (!mp)
      break;
    if (mp->am_dev == ul->devid &&
	(ul->rdevid == 0 || mp->am_rdev == ul->rdevid))
      break;
  }

  if (mp) {
    /* save RPC context */
    if (!mp->am_transp && transp) {
      mp->am_transp = (SVCXPRT *) xmalloc(sizeof(SVCXPRT));
      *(mp->am_transp) = *transp;
    }

    mapno = mp->am_mapno;
    err = unmount_mp(mp);

    if (err)
      /* backgrounded, don't reply yet */
      return 1;

    if (get_exported_ap(mapno))
      /* unmounting failed, tell the kernel */
      res->status = 1;
  }

  dlog("UNMOUNT REPLY: status=%d", res->status);
  return 0;
}


/****************************************************************************/
/* autofs program dispatcher */
static void
autofs_program_1(struct svc_req *rqstp, SVCXPRT *transp)
{
  union {
    mntrequest autofs_mount_1_arg;
    umntrequest autofs_umount_1_arg;
  } argument;
  union {
    mntres mount_res;
    umntres umount_res;
  } result;
  int ret;

  bool_t (*xdr_argument)();
  bool_t (*xdr_result)();
  int (*local)();

  current_transp = transp;

  switch (rqstp->rq_proc) {

  case AUTOFS_NULL:
    svc_sendreply(transp,
		  (XDRPROC_T_TYPE) xdr_void,
		  (SVC_IN_ARG_TYPE) NULL);
    return;

  case AUTOFS_MOUNT:
    xdr_argument = xdr_mntrequest;
    xdr_result = xdr_mntres;
    local = autofs_mount_1_req;
    break;

  case AUTOFS_UNMOUNT:
    xdr_argument = xdr_umntrequest;
    xdr_result = xdr_umntres;
    local = autofs_unmount_1_req;
    break;

  default:
    svcerr_noproc(transp);
    return;
  }

  memset((char *) &argument, 0, sizeof(argument));
  if (!svc_getargs(transp,
		   (XDRPROC_T_TYPE) xdr_argument,
		   (SVC_IN_ARG_TYPE) &argument)) {
    plog(XLOG_ERROR,
	 "AUTOFS xdr decode failed for %d %d %d",
	 (int) rqstp->rq_prog, (int) rqstp->rq_vers, (int) rqstp->rq_proc);
    svcerr_decode(transp);
    return;
  }

  memset((char *)&result, 0, sizeof(result));
  ret = (*local) (&argument, &result, rqstp, transp);

  current_transp = NULL;

  /* send reply only if the RPC method returned 0 */
  if (!ret) {
    if (!svc_sendreply(transp,
		       (XDRPROC_T_TYPE) xdr_result,
		       (SVC_IN_ARG_TYPE) &result)) {
      svcerr_systemerr(transp);
    }
  }

  if (!svc_freeargs(transp,
		    (XDRPROC_T_TYPE) xdr_argument,
		    (SVC_IN_ARG_TYPE) &argument)) {
    plog(XLOG_FATAL, "unable to free rpc arguments in autofs_program_1");
  }
}


int
autofs_get_fh(am_node *mp)
{
  autofs_fh_t *fh;
  char buf[MAXHOSTNAMELEN];
  mntfs *mf = mp->am_al->al_mnt;
  struct utsname utsname;

  plog(XLOG_DEBUG, "autofs_get_fh for %s", mp->am_path);
  fh = ALLOC(autofs_fh_t);
  memset((voidp) fh, 0, sizeof(autofs_fh_t)); /* Paranoid */

  /*
   * SET MOUNT ARGS
   */
  if (uname(&utsname) < 0) {
    xstrlcpy(buf, "localhost.autofs", sizeof(buf));
  } else {
    xstrlcpy(buf, utsname.nodename, sizeof(buf));
    xstrlcat(buf, ".autofs", sizeof(buf));
  }
#ifdef HAVE_AUTOFS_ARGS_T_ADDR
  fh->addr.buf = xstrdup(buf);
  fh->addr.len = fh->addr.maxlen = strlen(buf);
#endif /* HAVE_AUTOFS_ARGS_T_ADDR */

  fh->direct = (mf->mf_fsflags & FS_DIRECT) ? 1 : 0;
  fh->rpc_to = 1;		/* XXX: arbitrary */
  fh->mount_to = mp->am_timeo;
  fh->path = mp->am_path;
  fh->opts = "";		/* XXX: arbitrary */
  fh->map = mp->am_path;	/* this is what we get back in readdir */

  mp->am_autofs_fh = fh;
  return 0;
}


void
autofs_mounted(am_node *mp)
{
  /* We don't want any timeouts on autofs nodes */
  mp->am_autofs_ttl = NEVER;
}


void
autofs_release_fh(am_node *mp)
{
  autofs_fh_t *fh = mp->am_autofs_fh;
#ifdef HAVE_AUTOFS_ARGS_T_ADDR
  XFREE(fh->addr.buf);
#endif /* HAVE_AUTOFS_ARGS_T_ADDR */
  XFREE(fh);
  mp->am_autofs_fh = NULL;
}


void
autofs_get_mp(am_node *mp)
{
  /* nothing to do */
}


void
autofs_release_mp(am_node *mp)
{
  /* nothing to do */
}


void
autofs_add_fdset(fd_set *readfds)
{
  /* nothing to do */
}


int
autofs_handle_fdset(fd_set *readfds, int nsel)
{
  /* nothing to do */
  return nsel;
}


/*
 * Create the autofs service for amd
 */
int
create_autofs_service(void)
{
  dlog("creating autofs service listener");
  return register_autofs_service(AUTOFS_CONFTYPE, autofs_program_1);
}


int
destroy_autofs_service(void)
{
  dlog("destroying autofs service listener");
  return unregister_autofs_service(AUTOFS_CONFTYPE);
}


int
autofs_mount_fs(am_node *mp, mntfs *mf)
{
  int err = 0;
  char *target, *target2 = NULL;
  char *space_hack = autofs_strdup_space_hack(mp->am_path);
  struct stat buf;

  if (mf->mf_flags & MFF_ON_AUTOFS) {
    if ((err = mkdir(space_hack, 0555)))
      goto out;
  }

  /*
   * For sublinks, we could end up here with an already mounted f/s.
   * Don't do anything in that case.
   */
  if (!(mf->mf_flags & MFF_MOUNTED))
    err = mf->mf_ops->mount_fs(mp, mf);

  if (err) {
    if (mf->mf_flags & MFF_ON_AUTOFS)
      rmdir(space_hack);
    errno = err;
    goto out;
  }

  /*
   * Autofs v1 doesn't support symlinks,
   * so we ignore the CFM_AUTOFS_USE_LOFS flag
   */
  if (mf->mf_flags & MFF_ON_AUTOFS)
    /* Nothing to do */
    goto out;

  if (mp->am_link)
    target = mp->am_link;
  else
    target = mf->mf_mount;

  if (target[0] != '/')
    target2 = str3cat(NULL, mp->am_parent->am_path, "/", target);
  else
    target2 = xstrdup(target);

  plog(XLOG_INFO, "autofs: converting from link to lofs (%s -> %s)", mp->am_path, target2);
  /*
   * we need to stat() the destination, because the bind mount does not
   * follow symlinks and/or allow for non-existent destinations.
   *
   * WARNING: we will deadlock if this function is called from the master
   * amd process and it happens to trigger another auto mount. Therefore,
   * this function should be called only from a child amd process, or
   * at the very least it should not be called from the parent unless we
   * know for sure that it won't cause a recursive mount. We refuse to
   * cause the recursive mount anyway if called from the parent amd.
   */
  if (!foreground) {
    if ((err = stat(target2, &buf)))
      goto out;
  }
  if ((err = lstat(target2, &buf)))
    goto out;

  if ((err = mkdir(space_hack, 0555)))
    goto out;

  if ((err = mount_lofs(mp->am_path, target2, mf->mf_mopts, 1))) {
    errno = err;
    goto out;
  }

 out:
  XFREE(space_hack);
  if (target2)
    XFREE(target2);

  if (err)
    return errno;
  return 0;
}


int
autofs_umount_fs(am_node *mp, mntfs *mf)
{
  int err = 0;
  char *space_hack = autofs_strdup_space_hack(mp->am_path);

  /*
   * Autofs v1 doesn't support symlinks,
   * so we ignore the CFM_AUTOFS_USE_LOFS flag
   */
  if (!(mf->mf_flags & MFF_ON_AUTOFS)) {
    err = UMOUNT_FS(mp->am_path, mnttab_file_name, 1);
    if (err)
      goto out;
    rmdir(space_hack);
  }

  /*
   * Multiple sublinks could reference this f/s.
   * Don't actually unmount it unless we're holding the last reference.
   */
  if (mf->mf_refc == 1) {
    if ((err = mf->mf_ops->umount_fs(mp, mf)))
      goto out;

    if (mf->mf_flags & MFF_ON_AUTOFS)
      rmdir(space_hack);
  }

 out:
  XFREE(space_hack);
  return err;
}


int
autofs_umount_succeeded(am_node *mp)
{
  umntres res;
  SVCXPRT *transp = mp->am_transp;

  if (transp) {
    res.status = 0;

    if (!svc_sendreply(transp,
		       (XDRPROC_T_TYPE) xdr_umntres,
		       (SVC_IN_ARG_TYPE) &res))
      svcerr_systemerr(transp);

    dlog("Quick reply sent for %s", mp->am_al->al_mnt->mf_mount);
    XFREE(transp);
    mp->am_transp = NULL;
  }

  plog(XLOG_INFO, "autofs: unmounting %s succeeded", mp->am_path);
  return 0;
}


int
autofs_umount_failed(am_node *mp)
{
  umntres res;
  SVCXPRT *transp = mp->am_transp;

  if (transp) {
    res.status = 1;

    if (!svc_sendreply(transp,
		       (XDRPROC_T_TYPE) xdr_umntres,
		       (SVC_IN_ARG_TYPE) &res))
      svcerr_systemerr(transp);

    dlog("Quick reply sent for %s", mp->am_al->al_mnt->mf_mount);
    XFREE(transp);
    mp->am_transp = NULL;
  }

  plog(XLOG_INFO, "autofs: unmounting %s failed", mp->am_path);
  return 0;
}


void
autofs_mount_succeeded(am_node *mp)
{
  SVCXPRT *transp = mp->am_transp;
  struct stat stb;
  char *space_hack;

  if (transp) {
    /* this was a mount request */
    mntres res;
    res.status = 0;

    if (!svc_sendreply(transp,
		       (XDRPROC_T_TYPE) xdr_mntres,
		       (SVC_IN_ARG_TYPE) &res))
      svcerr_systemerr(transp);

    dlog("Quick reply sent for %s", mp->am_al->al_mnt->mf_mount);
    XFREE(transp);
    mp->am_transp = NULL;
  }

  space_hack = autofs_strdup_space_hack(mp->am_path);
  if (!lstat(space_hack, &stb)) {
    mp->am_dev = stb.st_dev;
    mp->am_rdev = stb.st_rdev;
  }
  XFREE(space_hack);
  /* don't expire the entries -- the kernel will do it for us */
  mp->am_flags |= AMF_NOTIMEOUT;

  plog(XLOG_INFO, "autofs: mounting %s succeeded", mp->am_path);
}


void
autofs_mount_failed(am_node *mp)
{
  SVCXPRT *transp = mp->am_transp;

  if (transp) {
    /* this was a mount request */
    mntres res;
    res.status = ENOENT;

    if (!svc_sendreply(transp,
		       (XDRPROC_T_TYPE) xdr_mntres,
		       (SVC_IN_ARG_TYPE) &res))
      svcerr_systemerr(transp);

    dlog("Quick reply sent for %s", mp->am_al->al_mnt->mf_mount);
    XFREE(transp);
    mp->am_transp = NULL;
  }

  plog(XLOG_INFO, "autofs: mounting %s failed", mp->am_path);
}


void
autofs_get_opts(char *opts, size_t l, autofs_fh_t *fh)
{
  xsnprintf(opts, l, "%sdirect",
	    fh->direct ? "" : "in");
}


int
autofs_compute_mount_flags(mntent_t *mntp)
{
  /* Must use overlay mounts */
  return MNT2_GEN_OPT_OVERLAY;
}


void autofs_timeout_mp(am_node *mp)
{
  /* We don't want any timeouts on autofs nodes */
  mp->am_autofs_ttl = NEVER;
}
#endif /* HAVE_FS_AUTOFS */