xref: /illumos-gate/usr/src/uts/common/fs/smbclnt/smbfs/smbfs_smb.c (revision b1e2e3fb17324e9ddf43db264a0c64da7756d9e6)
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 /*
34  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
35  * Use is subject to license terms.
36  *
37  * Copyright 2018 Nexenta Systems, Inc.  All rights reserved.
38  */
39 
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/inttypes.h>
43 #include <sys/time.h>
44 #include <sys/vnode.h>
45 #include <sys/sunddi.h>
46 #include <sys/cmn_err.h>
47 
48 #include <netsmb/smb_osdep.h>
49 
50 #include <netsmb/smb.h>
51 #include <netsmb/smb2.h>
52 #include <netsmb/smb_conn.h>
53 #include <netsmb/smb_subr.h>
54 #include <netsmb/smb_rq.h>
55 
56 #include <smbfs/smbfs.h>
57 #include <smbfs/smbfs_node.h>
58 #include <smbfs/smbfs_subr.h>
59 
60 /*
61  * Jan 1 1980 as 64 bit NT time.
62  * (tenths of microseconds since 1601)
63  */
64 const uint64_t NT1980 = 11960035200ULL*10000000ULL;
65 
66 
67 /*
68  * Helper for smbfs_getattr_otw
69  * used when we have an open FID
70  */
71 int
72 smbfs_smb_getfattr(
73 	struct smbnode *np,
74 	smb_fh_t *fhp,
75 	struct smbfattr *fap,
76 	struct smb_cred *scrp)
77 {
78 	struct smb_share *ssp = np->n_mount->smi_share;
79 	int error;
80 
81 	if (SSTOVC(ssp)->vc_flags & SMBV_SMB2) {
82 		error = smbfs_smb2_qfileinfo(ssp, &fhp->fh_fid2, fap, scrp);
83 	} else {
84 		error = smbfs_smb1_trans2_query(np, fhp->fh_fid1, fap, scrp);
85 	}
86 
87 	return (error);
88 }
89 
90 /*
91  * Helper for smbfs_getattr_otw
92  * used when we don't have an open FID
93  *
94  * For SMB1 we can just use the path form of trans2 query.
95  * For SMB2 we need to do an attribute-only open.
96  * See smbfs_smb2_getpattr()
97  */
98 int
99 smbfs_smb_getpattr(
100 	struct smbnode *np,
101 	struct smbfattr *fap,
102 	struct smb_cred *scrp)
103 {
104 	struct smb_share *ssp = np->n_mount->smi_share;
105 	int error;
106 
107 	if (SSTOVC(ssp)->vc_flags & SMBV_SMB2) {
108 		error = smbfs_smb2_getpattr(np, fap, scrp);
109 	} else {
110 		uint16_t fid = SMB_FID_UNUSED;
111 		error = smbfs_smb1_trans2_query(np, fid, fap, scrp);
112 	}
113 
114 	return (error);
115 }
116 
117 /*
118  * Get and parse FileFsAttributeInformation
119  */
120 int
121 smbfs_smb_qfsattr(struct smb_share *ssp, struct smb_fs_attr_info *fsa,
122 	struct smb_cred *scrp)
123 {
124 	int error;
125 
126 	if (SSTOVC(ssp)->vc_flags & SMBV_SMB2) {
127 		error = smbfs_smb2_qfsattr(ssp, fsa, scrp);
128 	} else {
129 		error = smbfs_smb1_qfsattr(ssp, fsa, scrp);
130 	}
131 
132 	/*
133 	 * If fs_name starts with FAT, we can't set dates before 1980
134 	 */
135 	if (0 == strncmp(fsa->fsa_tname, "FAT", 3)) {
136 		SMB_SS_LOCK(ssp);
137 		ssp->ss_flags |= SMBS_FST_FAT;
138 		SMB_SS_UNLOCK(ssp);
139 	}
140 
141 	return (error);
142 }
143 
144 int
145 smbfs_smb_statfs(struct smb_share *ssp, statvfs64_t *sbp,
146 	struct smb_cred *scp)
147 {
148 	struct smb_fs_size_info info;
149 	struct smb_vc *vcp = SSTOVC(ssp);
150 	uint32_t bps, spu;
151 	int error;
152 
153 	if (vcp->vc_flags & SMBV_SMB2) {
154 		error = smbfs_smb2_statfs(ssp, &info, scp);
155 	} else {
156 		error = smbfs_smb1_statfs(ssp, &info, scp);
157 	}
158 	if (error)
159 		return (error);
160 
161 	/* A bit of paranoia. */
162 	bps = info.bytes_per_sect;
163 	if (bps < DEV_BSIZE)
164 		bps = DEV_BSIZE;
165 	spu = info.sect_per_unit;
166 	if (spu == 0)
167 		spu = 1;
168 
169 	/* preferred file system block size */
170 	sbp->f_bsize = bps * spu;
171 
172 	/* file system block size ("fragment size") */
173 	sbp->f_frsize = bps;
174 
175 	/* total blocks of f_frsize */
176 	sbp->f_blocks = info.total_units * spu;
177 
178 	/* free blocks of f_frsize */
179 	sbp->f_bfree = info.actual_avail * spu;
180 
181 	/* free blocks avail to non-superuser */
182 	sbp->f_bavail = info.caller_avail * spu;
183 
184 	sbp->f_files = (-1);	/* total file nodes in file system */
185 	sbp->f_ffree = (-1);	/* free file nodes in fs */
186 
187 	return (error);
188 }
189 
190 int
191 smbfs_smb_setdisp(struct smb_share *ssp, smb_fh_t *fhp,
192 	uint8_t disp, struct smb_cred *scrp)
193 {
194 	int err;
195 
196 	if (SSTOVC(ssp)->vc_flags & SMBV_SMB2) {
197 		err = smbfs_smb2_setdisp(ssp, &fhp->fh_fid2, disp, scrp);
198 	} else {
199 		err = smbfs_smb1_setdisp(ssp, fhp->fh_fid1, disp, scrp);
200 	}
201 
202 	return (err);
203 }
204 
205 int
206 smbfs_smb_setfsize(struct smb_share *ssp, smb_fh_t *fhp,
207 	uint64_t size, struct smb_cred *scrp)
208 {
209 	int error;
210 
211 	if (SSTOVC(ssp)->vc_flags & SMBV_SMB2) {
212 		error = smbfs_smb2_seteof(ssp, &fhp->fh_fid2, size, scrp);
213 	} else {
214 		error = smbfs_smb1_seteof(ssp, fhp->fh_fid1, size, scrp);
215 	}
216 
217 	return (error);
218 }
219 
220 
221 /*
222  * Set file attributes (optionally: DOS attr, atime, mtime)
223  * Always have an open FID with set attr rights.
224  */
225 int
226 smbfs_smb_setfattr(
227 	struct smb_share *ssp,
228 	smb_fh_t *fhp,
229 	uint32_t attr,
230 	struct timespec *mtime,
231 	struct timespec *atime,
232 	struct smb_cred *scrp)
233 {
234 	struct mbchain mb_info;
235 	struct mbchain *mbp = &mb_info;
236 	uint64_t tm;
237 	int error;
238 
239 	/*
240 	 * Build a struct FILE_BASIC_INFORMATION in mbp
241 	 *	LARGE_INTEGER CreationTime;
242 	 *	LARGE_INTEGER LastAccessTime;
243 	 *	LARGE_INTEGER LastWriteTime;
244 	 *	LARGE_INTEGER ChangeTime;
245 	 *	ULONG FileAttributes;
246 	 * Zero in times means "no change".
247 	 */
248 	mb_init(mbp);
249 	mb_put_uint64le(mbp, 0);		/* creation time */
250 	if (atime) {
251 		smb_time_local2NT(atime, &tm);
252 		if (tm != 0 && (ssp->ss_flags & SMBS_FST_FAT) &&
253 		    tm < NT1980)
254 			tm = NT1980;
255 	} else
256 		tm = 0;
257 	mb_put_uint64le(mbp, tm);		/* last access time */
258 	if (mtime) {
259 		smb_time_local2NT(mtime, &tm);
260 		if (tm != 0 && (ssp->ss_flags & SMBS_FST_FAT) &&
261 		    tm < NT1980)
262 			tm = NT1980;
263 	} else
264 		tm = 0;
265 	mb_put_uint64le(mbp, tm);		/* last write time */
266 	mb_put_uint64le(mbp, 0);		/* change time */
267 	mb_put_uint32le(mbp, attr);
268 
269 	if (SSTOVC(ssp)->vc_flags & SMBV_SMB2) {
270 		error = smbfs_smb2_setfattr(ssp, &fhp->fh_fid2, mbp, scrp);
271 	} else {
272 		error = smbfs_smb1_setfattr(ssp, fhp->fh_fid1, mbp, scrp);
273 	}
274 
275 	return (error);
276 }
277 
278 int
279 smbfs_smb_flush(struct smb_share *ssp, smb_fh_t *fhp,
280 	struct smb_cred *scrp)
281 {
282 	int error;
283 
284 	if (SSTOVC(ssp)->vc_flags & SMBV_SMB2) {
285 		error = smbfs_smb2_flush(ssp, &fhp->fh_fid2, scrp);
286 	} else {
287 		error = smbfs_smb1_flush(ssp, fhp->fh_fid1, scrp);
288 	}
289 	return (error);
290 }
291 
292 /*
293  * Modern create/open of file or directory.
294  * On success, fills in fhp->fh_fid* and fhp->fh_rights
295  */
296 int
297 smbfs_smb_ntcreatex(
298 	struct smbnode *np,
299 	const char *name,
300 	int nmlen,
301 	int xattr,		/* is named stream? */
302 	uint32_t req_acc,	/* requested access */
303 	uint32_t efa,		/* ext. file attrs (DOS attr +) */
304 	uint32_t share_acc,
305 	uint32_t disp,		/* open disposition */
306 	uint32_t createopt,	/* NTCREATEX_OPTIONS_ */
307 	struct smb_cred *scrp,
308 	smb_fh_t *fhp,		/* pre-made file handle to fill in */
309 	uint32_t *cr_act_p,	/* optional returned create action */
310 	struct smbfattr *fap)	/* optional returned attributes */
311 {
312 	struct mbchain name_mb;
313 	struct smb_share *ssp = np->n_mount->smi_share;
314 	int err;
315 
316 	mb_init(&name_mb);
317 
318 	if (name == NULL)
319 		nmlen = 0;
320 	err = smbfs_fullpath(&name_mb, SSTOVC(ssp),
321 	    np, name, nmlen, xattr ? ':' : '\\');
322 	if (err)
323 		goto out;
324 
325 	err = smb_smb_ntcreate(ssp, &name_mb,
326 	    0,	/* NTCREATEX_FLAGS... */
327 	    req_acc, efa, share_acc, disp, createopt,
328 	    NTCREATEX_IMPERSONATION_IMPERSONATION,
329 	    scrp, fhp, cr_act_p, fap);
330 
331 out:
332 	mb_done(&name_mb);
333 
334 	return (err);
335 }
336 
337 /*
338  * Get a file handle with (at least) the specified rights.
339  *
340  * We'll try to borrow the node ->n_fid if we can.  When we
341  * borrow n_fid, just take a hold on the smb_fh_t, and don't
342  * bump n_fidrefs as that tracks VFS-level opens.  Similarly
343  * in _tmpclose we just release the smb_fh_t, not n_fidrefs.
344  */
345 int
346 smbfs_smb_tmpopen(struct smbnode *np, uint32_t rights, struct smb_cred *scrp,
347 	smb_fh_t **fhpp)
348 {
349 	struct smb_share *ssp = np->n_mount->smi_share;
350 	smb_fh_t *fhp = NULL;
351 	int error;
352 
353 	/* Can we re-use n_fid? or must we open anew? */
354 	mutex_enter(&np->r_statelock);
355 	if (np->n_fidrefs > 0 &&
356 	   (fhp = np->n_fid) != NULL &&
357 	   fhp->fh_vcgenid == ssp->ss_vcgenid &&
358 	   (fhp->fh_rights & rights) == rights) {
359 		smb_fh_hold(fhp);
360 		*fhpp = fhp;
361 		mutex_exit(&np->r_statelock);
362 		return (0);
363 	}
364 	mutex_exit(&np->r_statelock);
365 
366 	error = smb_fh_create(ssp, &fhp);
367 	if (error != 0)
368 		goto out;
369 
370 	/* re-open an existing file. */
371 	error = smbfs_smb_ntcreatex(np,
372 	    NULL, 0, 0,	/* name nmlen xattr */
373 	    rights, SMB_EFA_NORMAL,
374 	    NTCREATEX_SHARE_ACCESS_ALL,
375 	    NTCREATEX_DISP_OPEN,
376 	    0, /* create options */
377 	    scrp, fhp,
378 	    NULL, NULL); /* cr_act_p fa_p */
379 	if (error != 0)
380 		goto out;
381 
382 	fhp->fh_rights = rights;
383 	smb_fh_opened(fhp);
384 	*fhpp = fhp;
385 	fhp = NULL;
386 
387 out:
388 	if (fhp != NULL)
389 		smb_fh_rele(fhp);
390 
391 	return (error);
392 }
393 
394 /* ARGSUSED */
395 void
396 smbfs_smb_tmpclose(struct smbnode *np, smb_fh_t *fhp)
397 {
398 	smb_fh_rele(fhp);
399 }
400 
401 int
402 smbfs_smb_open(
403 	struct smbnode *np,
404 	const char *name,
405 	int nmlen,
406 	int xattr,
407 	uint32_t rights,
408 	struct smb_cred *scrp,
409 	smb_fh_t **fhpp,
410 	smbfattr_t *fap)
411 {
412 	struct smb_share *ssp = np->n_mount->smi_share;
413 	// struct smb_vc *vcp = SSTOVC(ssp);
414 	smb_fh_t *fhp = NULL;
415 	int error;
416 
417 	error = smb_fh_create(ssp, &fhp);
418 	if (error != 0)
419 		goto out;
420 
421 	/* open an existing file */
422 	error = smbfs_smb_ntcreatex(np,
423 	    name, nmlen, xattr,
424 	    rights, SMB_EFA_NORMAL,
425 	    NTCREATEX_SHARE_ACCESS_ALL,
426 	    NTCREATEX_DISP_OPEN,
427 	    0, /* create options */
428 	    scrp, fhp, NULL, fap);
429 	if (error != 0)
430 		goto out;
431 
432 	fhp->fh_rights = rights;
433 	smb_fh_opened(fhp);
434 	*fhpp = fhp;
435 	fhp = NULL;
436 
437 out:
438 	if (fhp != NULL)
439 		smb_fh_rele(fhp);
440 
441 	return (0);
442 }
443 
444 void
445 smbfs_smb_close(smb_fh_t *fhp)
446 {
447 
448 	smb_fh_close(fhp);
449 	smb_fh_rele(fhp);
450 }
451 
452 int
453 smbfs_smb_create(
454 	struct smbnode *dnp,
455 	const char *name,
456 	int nmlen,
457 	int xattr,
458 	uint32_t disp,
459 	struct smb_cred *scrp,
460 	smb_fh_t **fhpp)
461 {
462 	struct smb_share *ssp = dnp->n_mount->smi_share;
463 	// struct smb_vc *vcp = SSTOVC(ssp);
464 	smb_fh_t *fhp = NULL;
465 	uint32_t efa, rights;
466 	int error;
467 
468 	error = smb_fh_create(ssp, &fhp);
469 	if (error != 0)
470 		goto out;
471 
472 	/*
473 	 * At present the only access we might need is to WRITE data,
474 	 * and that only if we are creating a "symlink".  When/if the
475 	 * access needed gets more complex it should made a parameter
476 	 * and be set upstream.
477 	 */
478 	rights = SA_RIGHT_FILE_WRITE_DATA;
479 	efa = SMB_EFA_NORMAL;
480 	if (!xattr && name && *name == '.')
481 		efa = SMB_EFA_HIDDEN;
482 	error = smbfs_smb_ntcreatex(dnp,
483 	    name, nmlen, xattr, rights, efa,
484 	    NTCREATEX_SHARE_ACCESS_ALL,
485 	    disp, /* != NTCREATEX_DISP_OPEN */
486 	    NTCREATEX_OPTIONS_NON_DIRECTORY_FILE,
487 	    scrp, fhp, NULL, NULL);
488 	if (error != 0)
489 		goto out;
490 
491 	fhp->fh_rights = rights;
492 	smb_fh_opened(fhp);
493 	*fhpp = fhp;
494 	fhp = NULL;
495 
496 out:
497 	if (fhp != NULL)
498 		smb_fh_rele(fhp);
499 
500 	return (error);
501 }
502 
503 int
504 smbfs_smb_rename(struct smbnode *sdnp, struct smbnode *np,
505     struct smbnode *tdnp, const char *tname, int tnlen,
506     smb_fh_t *fhp, struct smb_cred *scrp)
507 {
508 	struct smb_share *ssp = np->n_mount->smi_share;
509 	struct smb_vc *vcp = SSTOVC(ssp);
510 	int err;
511 
512 	if (vcp->vc_flags & SMBV_SMB2) {
513 		err = smbfs_smb2_rename(np, tdnp, tname, tnlen, 0,
514 		    &fhp->fh_fid2, scrp);
515 		return (err);
516 	}
517 
518 	/*
519 	 * SMB1 -- Want to use _t2rename if we can
520 	 * (rename in same dir and cap pass-through)
521 	 * Most SMB1 servers have cap pass-through.
522 	 */
523 	if (sdnp == tdnp &&
524 	    (vcp->vc_sopt.sv_caps & SMB_CAP_INFOLEVEL_PASSTHRU) != 0) {
525 		err = smbfs_smb1_t2rename(np, tname, tnlen, fhp->fh_fid1, scrp);
526 	} else {
527 		err = smbfs_smb1_oldrename(np, tdnp, tname, tnlen, scrp);
528 	}
529 
530 	return (err);
531 }
532 
533 int
534 smbfs_smb_mkdir(struct smbnode *dnp, const char *name, int nmlen,
535 		struct smb_cred *scrp)
536 {
537 	smb_fh_t tmp_fh;
538 	struct smb_share *ssp = dnp->n_mount->smi_share;
539 	uint32_t efa, rights;
540 	int error;
541 
542 	/*
543 	 * Using a faked-up handle here to avoid the work of
544 	 * creating and destroying a real "conn obj".
545 	 */
546 	bzero(&tmp_fh, sizeof (tmp_fh));
547 
548 	/*
549 	 * We ask for SA_RIGHT_FILE_READ_DATA not because we need it, but
550 	 * just to be asking for something.  The rights==0 case could
551 	 * easily be broken on some old or unusual servers.
552 	 */
553 	rights = SA_RIGHT_FILE_READ_DATA;
554 	efa = SMB_EFA_NORMAL;
555 	if (name && *name == '.')
556 		efa |= SMB_EFA_HIDDEN;
557 	error = smbfs_smb_ntcreatex(dnp,
558 	    name, nmlen, 0, /* xattr */
559 	    rights, SMB_EFA_DIRECTORY,
560 	    NTCREATEX_SHARE_ACCESS_ALL,
561 	    NTCREATEX_DISP_CREATE,
562 	    NTCREATEX_OPTIONS_DIRECTORY,
563 	    scrp, &tmp_fh, NULL, NULL);
564 	if (error == 0) {
565 		(void) smb_smb_close(ssp, &tmp_fh, scrp);
566 	}
567 
568 	return (error);
569 }
570 
571 /*
572  * Protocol-level directory open
573  */
574 int
575 smbfs_smb_findopen(struct smbnode *dnp, const char *wild, int wlen,
576 			int attr, struct smb_cred *scrp,
577 			struct smbfs_fctx **ctxpp)
578 {
579 	struct smb_share *ssp = dnp->n_mount->smi_share;
580 	struct smb_vc *vcp = SSTOVC(ssp);
581 	struct smbfs_fctx *ctx;
582 	int error;
583 
584 	ctx = kmem_zalloc(sizeof (*ctx), KM_SLEEP);
585 
586 	ctx->f_flags = SMBFS_RDD_FINDFIRST;
587 	ctx->f_dnp = dnp;
588 	ctx->f_scred = scrp;
589 	ctx->f_ssp = ssp;
590 
591 	if (dnp->n_flag & N_XATTR) {
592 		error = smbfs_xa_findopen(ctx, dnp, wild, wlen);
593 		goto out;
594 	}
595 
596 	if (vcp->vc_flags & SMBV_SMB2) {
597 		error = smbfs_smb2_findopen(ctx, dnp, wild, wlen, attr);
598 	} else {
599 		error = smbfs_smb_findopenLM2(ctx, dnp, wild, wlen, attr);
600 	}
601 
602 out:
603 	ctx->f_scred = NULL;
604 	if (error) {
605 		kmem_free(ctx, sizeof (*ctx));
606 	} else {
607 		*ctxpp = ctx;
608 	}
609 
610 	return (error);
611 }
612 
613 int
614 smbfs_smb_findnext(struct smbfs_fctx *ctx, int limit, struct smb_cred *scrp)
615 {
616 	int error = 0;
617 	uint16_t lim;
618 
619 	/*
620 	 * Note: "limit" (maxcount) needs to fit in a short!
621 	 */
622 	if (limit > 0xffff)
623 		limit = 0xffff;
624 	lim = (uint16_t)limit;
625 
626 	ctx->f_scred = scrp;
627 	for (;;) {
628 		bzero(&ctx->f_attr, sizeof (ctx->f_attr));
629 		switch (ctx->f_type) {
630 
631 		case ft_SMB2:
632 			error = smbfs_smb2_findnext(ctx, lim);
633 			break;
634 		case ft_LM2:
635 			error = smbfs_smb_findnextLM2(ctx, lim);
636 			break;
637 		case ft_XA:
638 			error = smbfs_xa_findnext(ctx, lim);
639 			break;
640 		default:
641 			ASSERT(0);
642 			error = EINVAL;
643 			break;
644 		}
645 		if (error)
646 			break;
647 		/*
648 		 * Skip "." or ".." - easy now that ctx->f_name
649 		 * has already been converted to utf-8 format.
650 		 */
651 		if ((ctx->f_nmlen == 1 && ctx->f_name[0] == '.') ||
652 		    (ctx->f_nmlen == 2 && ctx->f_name[0] == '.' &&
653 		    ctx->f_name[1] == '.'))
654 			continue;
655 		break;
656 	}
657 	ctx->f_scred = NULL;
658 	if (error != 0)
659 		return (error);
660 
661 	ctx->f_inum = smbfs_getino(ctx->f_dnp,
662 	    ctx->f_name, ctx->f_nmlen);
663 
664 #ifdef	DEBUG
665 	SMBVDEBUG("findnext: (%s)\n", ctx->f_name);
666 #endif
667 
668 	return (error);
669 }
670 
671 
672 int
673 smbfs_smb_findclose(struct smbfs_fctx *ctx, struct smb_cred *scrp)
674 {
675 	int error;
676 
677 	ctx->f_scred = scrp;
678 	switch (ctx->f_type) {
679 	case ft_SMB2:
680 		error = smbfs_smb2_findclose(ctx);
681 		break;
682 	case ft_LM2:
683 		error = smbfs_smb_findcloseLM2(ctx);
684 		break;
685 	case ft_XA:
686 		error = smbfs_xa_findclose(ctx);
687 		break;
688 	default:
689 		error = ENOSYS;
690 		break;
691 	}
692 	ctx->f_scred = NULL;
693 	if (ctx->f_rname)
694 		kmem_free(ctx->f_rname, ctx->f_rnamelen);
695 	if (ctx->f_firstnm)
696 		kmem_free(ctx->f_firstnm, ctx->f_firstnmlen);
697 	kmem_free(ctx, sizeof (*ctx));
698 	return (error);
699 }
700 
701 
702 int
703 smbfs_smb_lookup(struct smbnode *dnp, const char **namep, int *nmlenp,
704 	struct smbfattr *fap, struct smb_cred *scrp)
705 {
706 	struct smbfs_fctx *ctx;
707 	int error, intr;
708 	const char *name = (namep ? *namep : NULL);
709 	int nmlen = (nmlenp ? *nmlenp : 0);
710 
711 	/* This is no longer called with a null dnp */
712 	ASSERT(dnp);
713 
714 	/*
715 	 * Should not get here with "" anymore.
716 	 */
717 	if (!name || !nmlen) {
718 		DEBUG_ENTER("smbfs_smb_lookup: name is NULL");
719 		return (EINVAL);
720 	}
721 
722 	/*
723 	 * Should not get here with "." or ".." anymore.
724 	 */
725 	if ((nmlen == 1 && name[0] == '.') ||
726 	    (nmlen == 2 && name[0] == '.' && name[1] == '.')) {
727 		DEBUG_ENTER("smbfs_smb_lookup: name is '.' or '..'");
728 		return (EINVAL);
729 	}
730 
731 	/*
732 	 * Shared lock for n_fid use (smb_flush).
733 	 */
734 	intr = dnp->n_mount->smi_flags & SMI_INT;
735 	if (smbfs_rw_enter_sig(&dnp->r_lkserlock, RW_READER, intr))
736 		return (EINTR);
737 
738 	error = smbfs_smb_findopen(dnp, name, nmlen,
739 	    SMB_FA_SYSTEM | SMB_FA_HIDDEN | SMB_FA_DIR, scrp, &ctx);
740 	if (error)
741 		goto out;
742 	ctx->f_flags |= SMBFS_RDD_FINDSINGLE;
743 	error = smbfs_smb_findnext(ctx, 1, scrp);
744 	if (error == 0) {
745 		*fap = ctx->f_attr;
746 		/*
747 		 * Solaris smbfattr doesn't have fa_ino,
748 		 * and we don't allow name==NULL in this
749 		 * function anymore.
750 		 */
751 		if (namep)
752 			*namep = (const char *)smbfs_name_alloc(
753 			    ctx->f_name, ctx->f_nmlen);
754 		if (nmlenp)
755 			*nmlenp = ctx->f_nmlen;
756 	}
757 	(void) smbfs_smb_findclose(ctx, scrp);
758 
759 out:
760 	smbfs_rw_exit(&dnp->r_lkserlock);
761 	return (error);
762 }
763 
764 /*
765  * OTW function to Get a security descriptor (SD).
766  *
767  * Note: On success, this fills in mdp->md_top,
768  * which the caller should free.
769  */
770 int
771 smbfs_smb_getsec(struct smb_share *ssp, smb_fh_t *fhp,
772 	uint32_t selector, mblk_t **res, uint32_t *reslen,
773 	struct smb_cred *scrp)
774 {
775 	struct smb_vc *vcp = SSTOVC(ssp);
776 	int error, len;
777 
778 	*res = NULL;
779 
780 	if (vcp->vc_flags & SMBV_SMB2) {
781 		error = smbfs_smb2_getsec(ssp, &fhp->fh_fid2,
782 		    selector, res, reslen, scrp);
783 	} else {
784 		error = smbfs_smb1_getsec(ssp, fhp->fh_fid1,
785 		    selector, res, reslen, scrp);
786 	}
787 
788 	/*
789 	 * get the data part.
790 	 */
791 	if (*res == NULL) {
792 		error = EBADRPC;
793 		goto done;
794 	}
795 
796 	/*
797 	 * If message length is < returned SD_length,
798 	 * correct *reslen (reduce it).  It greater,
799 	 * just ignore the extra data.
800 	 */
801 	len = m_fixhdr(*res);
802 	if (len < *reslen)
803 		*reslen = len;
804 
805 done:
806 	if (error == 0 && *res == NULL) {
807 		ASSERT(*res);
808 		error = EBADRPC;
809 	}
810 
811 	return (error);
812 }
813 
814 /*
815  * OTW function to Set a security descriptor (SD).
816  * Caller data are carried in an mbchain_t.
817  *
818  * Note: This normally consumes mbp->mb_top, and clears
819  * that pointer when it does.
820  */
821 int
822 smbfs_smb_setsec(struct smb_share *ssp, smb_fh_t *fhp,
823 	uint32_t selector, mblk_t **mp,
824 	struct smb_cred *scrp)
825 {
826 	struct smb_vc *vcp = SSTOVC(ssp);
827 	int error;
828 
829 	if (vcp->vc_flags & SMBV_SMB2) {
830 		error = smbfs_smb2_setsec(ssp, &fhp->fh_fid2,
831 		    selector, mp, scrp);
832 	} else {
833 		error = smbfs_smb1_setsec(ssp, fhp->fh_fid1,
834 		    selector, mp, scrp);
835 	}
836 
837 	return (error);
838 }
839