xref: /titanic_44/usr/src/uts/common/fs/smbsrv/smb_find.c (revision a60349c89adffc0902b2353230891d8e7f2b24d9)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
23  * Copyright 2012 Nexenta Systems, Inc.  All rights reserved.
24  */
25 
26 #include <smbsrv/smb_kproto.h>
27 
28 /*
29  * smb_com_search
30  * smb_com_find, smb_com_find_close
31  * smb_find_unique
32  *
33  * These commands are used for directory searching. They share the same
34  * message formats, defined below:
35  *
36  * Client Request                     Description
37  * ---------------------------------- ---------------------------------
38  *
39  * UCHAR WordCount;                   Count of parameter words = 2
40  * USHORT MaxCount;                   Number of dir. entries to return
41  * USHORT SearchAttributes;
42  * USHORT ByteCount;                  Count of data bytes;  min = 5
43  * UCHAR BufferFormat1;               0x04 -- ASCII
44  * UCHAR FileName[];                  File name, may be null
45  * UCHAR BufferFormat2;               0x05 -- Variable block
46  * USHORT ResumeKeyLength;            Length of resume key, may be 0
47  * UCHAR ResumeKey[];                 Resume key
48  *
49  * FileName specifies the file to be sought.  SearchAttributes indicates
50  * the attributes that the file must have.  If  SearchAttributes is
51  * zero then only normal files are returned.  If the system file, hidden or
52  * directory attributes are specified then the search is inclusive - both the
53  * specified type(s) of files and normal files are returned.  If the volume
54  * label attribute is specified then the search is exclusive, and only the
55  * volume label entry is returned.
56  *
57  * MaxCount specifies the number of directory entries to be returned.
58  *
59  * Server Response                    Description
60  * ---------------------------------- ---------------------------------
61  *
62  * UCHAR WordCount;                   Count of parameter words = 1
63  * USHORT Count;                      Number of entries returned
64  * USHORT ByteCount;                  Count of data bytes;  min = 3
65  * UCHAR BufferFormat;                0x05 -- Variable block
66  * USHORT DataLength;                 Length of data
67  * UCHAR DirectoryInformationData[];  Data
68  *
69  * The response will contain one or more directory entries as determined by
70  * the Count field.  No more than MaxCount entries will be returned.  Only
71  * entries that match the sought FileName and SearchAttributes combination
72  * will be returned.
73  *
74  * ResumeKey must be null (length = 0) on the initial search request.
75  * Subsequent search requests intended to continue a search must contain
76  * the ResumeKey field extracted from the last directory entry of the
77  * previous response.  ResumeKey is self-contained, for calls containing
78  * a non-zero ResumeKey neither the SearchAttributes or FileName fields
79  * will be valid in the request.  ResumeKey has the following format:
80  *
81  * Resume Key Field                   Description
82  * ---------------------------------- ---------------------------------
83  *
84  * UCHAR Reserved;                    bit 7 - consumer use
85  *                                    bits 5,6 - system use (must preserve)
86  *                                    bits 0-4 - server use (must preserve)
87  * UCHAR FileName[11];                Name of the returned file
88  * UCHAR ReservedForServer[5];        Client must not modify
89  *                                    byte 0 - uniquely identifies find
90  *                                    through find_close
91  *                                    bytes 1-4 - available for server use
92  *                                    (must be non-zero)
93  * UCHAR ReservedForConsumer[4];      Server must not modify
94  *
95  * FileName is 8.3 format, with the three character extension left
96  * justified into FileName[9-11].
97  *
98  * There may be multiple matching entries in response to a single request
99  * as wildcards are supported in the last component of FileName of the
100  * initial request.
101  *
102  * Returned directory entries in the DirectoryInformationData field of the
103  * response each have the following format:
104  *
105  * Directory Information Field        Description
106  * ---------------------------------- ---------------------------------
107  *
108  * SMB_RESUME_KEY ResumeKey;          Described above
109  * UCHAR FileAttributes;              Attributes of the found file
110  * SMB_TIME LastWriteTime;            Time file was last written
111  * SMB_DATE LastWriteDate;            Date file was last written
112  * ULONG FileSize;                    Size of the file
113  * UCHAR FileName[13];                ASCII, space-filled null terminated
114  *
115  * FileName must conform to 8.3 rules, and is padded after the extension
116  * with 0x20 characters if necessary.
117  *
118  * As can be seen from the above structure, these commands cannot return
119  * long filenames, and cannot return UNICODE filenames.
120  *
121  * Files which have a size greater than 2^32 bytes should have the least
122  * significant 32 bits of their size returned in FileSize.
123  *
124  * smb_com_search
125  * --------------
126  *
127  * If the client is prior to the LANMAN1.0 dialect, the returned FileName
128  * should be uppercased.
129  * If the client has negotiated a dialect prior to the LANMAN1.0 dialect,
130  * or if bit0 of the Flags2 SMB header field of the request is clear,
131  * the returned FileName should be uppercased.
132  *
133  * SMB_COM_SEARCH terminates when either the requested maximum number of
134  * entries that match the named file are found, or the end of directory is
135  * reached without the maximum number of matches being found.  A response
136  * containing no entries indicates that no matching entries were found
137  * between the starting point of the search and the end of directory.
138  *
139  *
140  * The find, find_close and find_unique protocols may be used in place of
141  * the core "search" protocol when LANMAN 1.0 dialect has been negotiated.
142  *
143  * smb_com_find
144  * ------------
145  *
146  * The find protocol is used to match the find OS/2 system call.
147  *
148  * The format of the find protocol is the same as the core "search" protocol.
149  * The difference is that the directory is logically Opened with a find protocol
150  * and logically closed with the find close protocol.
151  * As is true of a failing open, if a find request (find "first" request where
152  * resume_key is null) fails (no entries are found), no find close protocol is
153  * expected.
154  *
155  * If no global characters are present, a "find unique" protocol should be used
156  * (only one entry is expected and find close need not be sent).
157  *
158  * A find request will terminate when either the requested maximum number of
159  * entries that match the named file are found, or the end of directory is
160  * reached without the maximum number of matches being found. A response
161  * containing no entries indicates that no matching entries were found between
162  * the starting point of the search and the end of directory.
163  *
164  * If a find requests more data than can be placed in a message of the
165  * max-xmit-size for the TID specified, the server will return only the number
166  * of entries which will fit.
167  *
168  *
169  * smb_com_find_close
170  * ------------------
171  *
172  * The find close protocol is used to match the find close OS/2 system call.
173  *
174  * Whereas the first find protocol logically opens the directory, subsequent
175  * find  protocols presenting a resume_key further "read" the directory, the
176  * find close  protocol "closes" the  directory allowing the server to free any
177  * resources held in support of the directory search.
178  *
179  * In our implementation this translates to closing the odir.
180  *
181  *
182  * smb_com_find_unique
183  * -------------------
184  *
185  * The format of the find unique protocol is the same as the core "search"
186  * protocol. The difference is that the directory is logically opened, any
187  * matching entries returned, and then the directory is logically closed.
188  *
189  * The resume search key key will be returned as in the find protocol and
190  * search protocol however it may NOT be returned to continue the search.
191  * Only one buffer of entries is expected and find close need not be sent.
192  *
193  * If a find unique requests more data than can be placed in a message of the
194  * max-xmit-size for the TID specified, the server will abort the virtual
195  * circuit to the consumer.
196  */
197 
198 #define	SMB_NAME83_BUFLEN	12
199 static void smb_name83(const char *, char *, size_t);
200 
201 /* *** smb_com_search *** */
202 
203 smb_sdrc_t
204 smb_pre_search(smb_request_t *sr)
205 {
206 	DTRACE_SMB_1(op__Search__start, smb_request_t *, sr);
207 	return (SDRC_SUCCESS);
208 }
209 
210 void
211 smb_post_search(smb_request_t *sr)
212 {
213 	DTRACE_SMB_1(op__Search__done, smb_request_t *, sr);
214 }
215 
216 smb_sdrc_t
217 smb_com_search(smb_request_t *sr)
218 {
219 	int			rc;
220 	uint16_t		count, maxcount, index;
221 	uint16_t		sattr, odid;
222 	uint16_t		key_len;
223 	uint32_t		client_key;
224 	char			name[SMB_SHORTNAMELEN];
225 	char			name83[SMB_SHORTNAMELEN];
226 	smb_pathname_t		*pn;
227 	unsigned char		resume_char;
228 	unsigned char		type;
229 	boolean_t		find_first, to_upper;
230 	smb_tree_t		*tree;
231 	smb_odir_t		*od;
232 	smb_fileinfo_t		fileinfo;
233 	smb_odir_resume_t	odir_resume;
234 	uint16_t		eos;
235 
236 	to_upper = B_FALSE;
237 	if ((sr->session->dialect <= LANMAN1_0) ||
238 	    ((sr->smb_flg2 & SMB_FLAGS2_KNOWS_LONG_NAMES) == 0)) {
239 		to_upper = B_TRUE;
240 	}
241 
242 	/* We only handle 8.3 name here */
243 	sr->smb_flg2 &= ~SMB_FLAGS2_KNOWS_LONG_NAMES;
244 	sr->smb_flg &= ~SMB_FLAGS_CASE_INSENSITIVE;
245 
246 	if (smbsr_decode_vwv(sr, "ww", &maxcount, &sattr) != 0)
247 		return (SDRC_ERROR);
248 
249 	pn = &sr->arg.dirop.fqi.fq_path;
250 	rc = smbsr_decode_data(sr, "%Abw", sr, &pn->pn_path, &type, &key_len);
251 	if ((rc != 0) || (type != 0x05))
252 		return (SDRC_ERROR);
253 
254 	smb_pathname_init(sr, pn, pn->pn_path);
255 	if (!smb_pathname_validate(sr, pn) ||
256 	    smb_is_stream_name(pn->pn_path)) {
257 		smbsr_warn(sr, NT_STATUS_NO_MORE_FILES,
258 		    ERRDOS, ERROR_NO_MORE_FILES);
259 		return (SDRC_ERROR);
260 	}
261 
262 	tree = sr->tid_tree;
263 
264 	/* Volume information only */
265 	if ((sattr == FILE_ATTRIBUTE_VOLUME) && (key_len != 21)) {
266 		(void) memset(name, ' ', sizeof (name));
267 		(void) strncpy(name, tree->t_volume, sizeof (name));
268 
269 		if (key_len >= 21) {
270 			(void) smb_mbc_decodef(&sr->smb_data, "17.l",
271 			    &client_key);
272 		} else {
273 			client_key = 0;
274 		}
275 
276 		(void) smb_mbc_encodef(&sr->reply, "bwwbwb11c5.lb8.13c",
277 		    1, 0, VAR_BCC, 5, 0, 0, pn->pn_path+1,
278 		    client_key, sattr, name);
279 
280 		rc = (sr->reply.chain_offset - sr->cur_reply_offset) - 8;
281 		(void) smb_mbc_poke(&sr->reply, sr->cur_reply_offset, "bwwbw",
282 		    1, 1, rc+3, 5, rc);
283 
284 		return (SDRC_SUCCESS);
285 	}
286 
287 	if ((key_len != 0) && (key_len != 21))
288 		return (SDRC_ERROR);
289 
290 	find_first = (key_len == 0);
291 	resume_char = 0;
292 	client_key = 0;
293 
294 	if (find_first) {
295 		odid = smb_odir_open(sr, pn->pn_path, sattr, 0);
296 		if (odid == 0) {
297 			if (sr->smb_error.status == NT_STATUS_ACCESS_DENIED)
298 				smbsr_warn(sr, NT_STATUS_NO_MORE_FILES,
299 				    ERRDOS, ERROR_NO_MORE_FILES);
300 			return (SDRC_ERROR);
301 		}
302 	} else {
303 		if (smb_mbc_decodef(&sr->smb_data, "b12.wwl",
304 		    &resume_char, &index, &odid, &client_key) != 0) {
305 			return (SDRC_ERROR);
306 		}
307 	}
308 
309 	od = smb_tree_lookup_odir(sr, odid);
310 	if (od == NULL) {
311 		smbsr_error(sr, NT_STATUS_INVALID_HANDLE,
312 		    ERRDOS, ERROR_INVALID_HANDLE);
313 		return (SDRC_ERROR);
314 	}
315 
316 	if (!find_first) {
317 		odir_resume.or_type = SMB_ODIR_RESUME_IDX;
318 		odir_resume.or_idx = index;
319 		smb_odir_resume_at(od, &odir_resume);
320 	}
321 
322 	(void) smb_mbc_encodef(&sr->reply, "bwwbw", 1, 0, VAR_BCC, 5, 0);
323 
324 	rc = 0;
325 	index = 0;
326 	count = 0;
327 	if (maxcount > SMB_MAX_SEARCH)
328 		maxcount = SMB_MAX_SEARCH;
329 
330 	while (count < maxcount) {
331 		rc = smb_odir_read_fileinfo(sr, od, &fileinfo, &eos);
332 		if (rc != 0 || eos != 0)
333 			break;
334 
335 		if (*fileinfo.fi_shortname == '\0') {
336 			if (smb_needs_mangled(fileinfo.fi_name))
337 				continue;
338 			(void) strlcpy(fileinfo.fi_shortname, fileinfo.fi_name,
339 			    SMB_SHORTNAMELEN - 1);
340 			if (to_upper)
341 				(void) smb_strupr(fileinfo.fi_shortname);
342 		}
343 		smb_name83(fileinfo.fi_shortname, name83, SMB_SHORTNAMELEN);
344 
345 		(void) smb_mbc_encodef(&sr->reply, "b11c.wwlbYl13c",
346 		    resume_char, name83, index, odid, client_key,
347 		    fileinfo.fi_dosattr & 0xff,
348 		    smb_time_gmt_to_local(sr, fileinfo.fi_mtime.tv_sec),
349 		    (int32_t)fileinfo.fi_size,
350 		    fileinfo.fi_shortname);
351 
352 		smb_odir_save_cookie(od, index, fileinfo.fi_cookie);
353 
354 		count++;
355 		index++;
356 	}
357 
358 	if (rc != 0) {
359 		smb_odir_close(od);
360 		smb_odir_release(od);
361 		return (SDRC_ERROR);
362 	}
363 
364 	if (count == 0 && find_first) {
365 		smb_odir_close(od);
366 		smb_odir_release(od);
367 		smbsr_warn(sr, NT_STATUS_NO_MORE_FILES,
368 		    ERRDOS, ERROR_NO_MORE_FILES);
369 		return (SDRC_ERROR);
370 	}
371 
372 	rc = (sr->reply.chain_offset - sr->cur_reply_offset) - 8;
373 	if (smb_mbc_poke(&sr->reply, sr->cur_reply_offset, "bwwbw",
374 	    1, count, rc+3, 5, rc) < 0) {
375 		smb_odir_close(od);
376 		smb_odir_release(od);
377 		return (SDRC_ERROR);
378 	}
379 
380 	smb_odir_release(od);
381 	return (SDRC_SUCCESS);
382 }
383 
384 
385 /* *** smb_com_find *** */
386 
387 smb_sdrc_t
388 smb_pre_find(smb_request_t *sr)
389 {
390 	DTRACE_SMB_1(op__Find__start, smb_request_t *, sr);
391 	return (SDRC_SUCCESS);
392 }
393 
394 void
395 smb_post_find(smb_request_t *sr)
396 {
397 	DTRACE_SMB_1(op__Find__done, smb_request_t *, sr);
398 }
399 
400 smb_sdrc_t
401 smb_com_find(smb_request_t *sr)
402 {
403 	int			rc;
404 	uint16_t		count, maxcount, index;
405 	uint16_t		sattr, odid;
406 	uint16_t		key_len;
407 	uint32_t		client_key;
408 	char			name83[SMB_SHORTNAMELEN];
409 	smb_odir_t		*od;
410 	smb_fileinfo_t		fileinfo;
411 	uint16_t		eos;
412 
413 	smb_pathname_t		*pn;
414 	unsigned char		resume_char;
415 	unsigned char		type;
416 	boolean_t		find_first = B_TRUE;
417 	smb_odir_resume_t	odir_resume;
418 
419 	if (smbsr_decode_vwv(sr, "ww", &maxcount, &sattr) != 0)
420 		return (SDRC_ERROR);
421 
422 	pn = &sr->arg.dirop.fqi.fq_path;
423 	rc = smbsr_decode_data(sr, "%Abw", sr, &pn->pn_path, &type, &key_len);
424 	if ((rc != 0) || (type != 0x05))
425 		return (SDRC_ERROR);
426 
427 	if ((key_len != 0) && (key_len != 21))
428 		return (SDRC_ERROR);
429 
430 	smb_pathname_init(sr, pn, pn->pn_path);
431 	if (!smb_pathname_validate(sr, pn))
432 		return (SDRC_ERROR);
433 
434 	if (smb_is_stream_name(pn->pn_path)) {
435 		smbsr_error(sr, NT_STATUS_OBJECT_NAME_INVALID,
436 		    ERRDOS, ERROR_INVALID_NAME);
437 		return (SDRC_ERROR);
438 	}
439 
440 	find_first = (key_len == 0);
441 	resume_char = 0;
442 	client_key = 0;
443 
444 	if (find_first) {
445 		odid = smb_odir_open(sr, pn->pn_path, sattr, 0);
446 		if (odid == 0)
447 			return (SDRC_ERROR);
448 	} else {
449 		if (smb_mbc_decodef(&sr->smb_data, "b12.wwl",
450 		    &resume_char, &index, &odid, &client_key) != 0) {
451 			return (SDRC_ERROR);
452 		}
453 	}
454 
455 	od = smb_tree_lookup_odir(sr, odid);
456 	if (od == NULL) {
457 		smbsr_error(sr, NT_STATUS_INVALID_HANDLE,
458 		    ERRDOS, ERROR_INVALID_HANDLE);
459 		return (SDRC_ERROR);
460 	}
461 
462 	if (!find_first) {
463 		odir_resume.or_type = SMB_ODIR_RESUME_IDX;
464 		odir_resume.or_idx = index;
465 		smb_odir_resume_at(od, &odir_resume);
466 	}
467 
468 	(void) smb_mbc_encodef(&sr->reply, "bwwbw", 1, 0, VAR_BCC, 5, 0);
469 
470 	rc = 0;
471 	index = 0;
472 	count = 0;
473 	if (maxcount > SMB_MAX_SEARCH)
474 		maxcount = SMB_MAX_SEARCH;
475 
476 	while (count < maxcount) {
477 		rc = smb_odir_read_fileinfo(sr, od, &fileinfo, &eos);
478 		if (rc != 0 || eos != 0)
479 			break;
480 
481 		if (*fileinfo.fi_shortname == '\0') {
482 			if (smb_needs_mangled(fileinfo.fi_name))
483 				continue;
484 			(void) strlcpy(fileinfo.fi_shortname, fileinfo.fi_name,
485 			    SMB_SHORTNAMELEN - 1);
486 		}
487 		smb_name83(fileinfo.fi_shortname, name83, SMB_SHORTNAMELEN);
488 
489 		(void) smb_mbc_encodef(&sr->reply, "b11c.wwlbYl13c",
490 		    resume_char, name83, index, odid, client_key,
491 		    fileinfo.fi_dosattr & 0xff,
492 		    smb_time_gmt_to_local(sr, fileinfo.fi_mtime.tv_sec),
493 		    (int32_t)fileinfo.fi_size,
494 		    fileinfo.fi_shortname);
495 
496 		smb_odir_save_cookie(od, index, fileinfo.fi_cookie);
497 
498 		count++;
499 		index++;
500 	}
501 
502 	if (rc != 0) {
503 		smb_odir_close(od);
504 		smb_odir_release(od);
505 		return (SDRC_ERROR);
506 	}
507 
508 	if (count == 0 && find_first) {
509 		smb_odir_close(od);
510 		smb_odir_release(od);
511 		smbsr_warn(sr, NT_STATUS_NO_MORE_FILES,
512 		    ERRDOS, ERROR_NO_MORE_FILES);
513 		return (SDRC_ERROR);
514 	}
515 
516 	rc = (MBC_LENGTH(&sr->reply) - sr->cur_reply_offset) - 8;
517 	if (smb_mbc_poke(&sr->reply, sr->cur_reply_offset, "bwwbw",
518 	    1, count, rc+3, 5, rc) < 0) {
519 		smb_odir_close(od);
520 		smb_odir_release(od);
521 		return (SDRC_ERROR);
522 	}
523 
524 	smb_odir_release(od);
525 	return (SDRC_SUCCESS);
526 }
527 
528 
529 /* *** smb_com_find_close *** */
530 
531 smb_sdrc_t
532 smb_pre_find_close(smb_request_t *sr)
533 {
534 	DTRACE_SMB_1(op__FindClose__start, smb_request_t *, sr);
535 	return (SDRC_SUCCESS);
536 }
537 
538 void
539 smb_post_find_close(smb_request_t *sr)
540 {
541 	DTRACE_SMB_1(op__FindClose__done, smb_request_t *, sr);
542 }
543 
544 smb_sdrc_t
545 smb_com_find_close(smb_request_t *sr)
546 {
547 	int		rc;
548 	uint16_t	maxcount, index;
549 	uint16_t	sattr, odid;
550 	uint16_t	key_len;
551 	uint32_t	client_key;
552 	char		*path;
553 	unsigned char	resume_char;
554 	unsigned char	type;
555 	smb_odir_t	*od;
556 
557 	if (smbsr_decode_vwv(sr, "ww", &maxcount, &sattr) != 0)
558 		return (SDRC_ERROR);
559 
560 	rc = smbsr_decode_data(sr, "%Abw", sr, &path, &type, &key_len);
561 	if ((rc != 0) || (type != 0x05))
562 		return (SDRC_ERROR);
563 
564 	if (key_len == 0) {
565 		smbsr_error(sr, NT_STATUS_INVALID_HANDLE,
566 		    ERRDOS, ERROR_INVALID_HANDLE);
567 		return (SDRC_ERROR);
568 	} else if (key_len != 21) {
569 		return (SDRC_ERROR);
570 	}
571 
572 	odid = 0;
573 	if (smb_mbc_decodef(&sr->smb_data, "b12.wwl",
574 	    &resume_char, &index, &odid, &client_key) != 0) {
575 		return (SDRC_ERROR);
576 	}
577 
578 	od = smb_tree_lookup_odir(sr, odid);
579 	if (od == NULL) {
580 		smbsr_error(sr, NT_STATUS_INVALID_HANDLE,
581 		    ERRDOS, ERROR_INVALID_HANDLE);
582 		return (SDRC_ERROR);
583 	}
584 
585 	smb_odir_close(od);
586 	smb_odir_release(od);
587 
588 	if (smbsr_encode_result(sr, 1, 3, "bwwbw", 1, 0, 3, 5, 0))
589 		return (SDRC_ERROR);
590 
591 	return (SDRC_SUCCESS);
592 }
593 
594 
595 /* *** smb_com_find_unique *** */
596 
597 smb_sdrc_t
598 smb_pre_find_unique(smb_request_t *sr)
599 {
600 	DTRACE_SMB_1(op__FindUnique__start, smb_request_t *, sr);
601 	return (SDRC_SUCCESS);
602 }
603 
604 void
605 smb_post_find_unique(smb_request_t *sr)
606 {
607 	DTRACE_SMB_1(op__FindUnique__done, smb_request_t *, sr);
608 }
609 
610 smb_sdrc_t
611 smb_com_find_unique(struct smb_request *sr)
612 {
613 	int			rc;
614 	uint16_t		count, maxcount, index;
615 	uint16_t		sattr, odid;
616 	smb_pathname_t		*pn;
617 	unsigned char		resume_char = '\0';
618 	uint32_t		client_key = 0;
619 	char			name83[SMB_SHORTNAMELEN];
620 	smb_odir_t		*od;
621 	smb_fileinfo_t		fileinfo;
622 	uint16_t		eos;
623 	smb_vdb_t		*vdb;
624 
625 	if (smbsr_decode_vwv(sr, "ww", &maxcount, &sattr) != 0)
626 		return (SDRC_ERROR);
627 
628 	pn = &sr->arg.dirop.fqi.fq_path;
629 	vdb = kmem_alloc(sizeof (smb_vdb_t), KM_SLEEP);
630 	if ((smbsr_decode_data(sr, "%AV", sr, &pn->pn_path, vdb) != 0) ||
631 	    (vdb->vdb_len != 0)) {
632 		kmem_free(vdb, sizeof (smb_vdb_t));
633 		return (SDRC_ERROR);
634 	}
635 	kmem_free(vdb, sizeof (smb_vdb_t));
636 
637 	smb_pathname_init(sr, pn, pn->pn_path);
638 	if (!smb_pathname_validate(sr, pn))
639 		return (SDRC_ERROR);
640 
641 	if (smb_is_stream_name(pn->pn_path)) {
642 		smbsr_error(sr, NT_STATUS_OBJECT_NAME_INVALID,
643 		    ERRDOS, ERROR_INVALID_NAME);
644 		return (SDRC_ERROR);
645 	}
646 
647 	(void) smb_mbc_encodef(&sr->reply, "bwwbw", 1, 0, VAR_BCC, 5, 0);
648 
649 	odid = smb_odir_open(sr, pn->pn_path, sattr, 0);
650 	if (odid == 0)
651 		return (SDRC_ERROR);
652 	od = smb_tree_lookup_odir(sr, odid);
653 	if (od == NULL)
654 		return (SDRC_ERROR);
655 
656 	rc = 0;
657 	count = 0;
658 	index = 0;
659 	if (maxcount > SMB_MAX_SEARCH)
660 		maxcount = SMB_MAX_SEARCH;
661 
662 	while (count < maxcount) {
663 		rc = smb_odir_read_fileinfo(sr, od, &fileinfo, &eos);
664 		if (rc != 0 || eos != 0)
665 			break;
666 
667 		if (*fileinfo.fi_shortname == '\0') {
668 			if (smb_needs_mangled(fileinfo.fi_name))
669 				continue;
670 			(void) strlcpy(fileinfo.fi_shortname, fileinfo.fi_name,
671 			    SMB_SHORTNAMELEN - 1);
672 		}
673 		smb_name83(fileinfo.fi_shortname, name83, SMB_SHORTNAMELEN);
674 
675 		(void) smb_mbc_encodef(&sr->reply, "b11c.wwlbYl13c",
676 		    resume_char, name83, index, odid, client_key,
677 		    fileinfo.fi_dosattr & 0xff,
678 		    smb_time_gmt_to_local(sr, fileinfo.fi_mtime.tv_sec),
679 		    (int32_t)fileinfo.fi_size,
680 		    fileinfo.fi_shortname);
681 
682 		count++;
683 		index++;
684 	}
685 
686 	smb_odir_close(od);
687 	smb_odir_release(od);
688 
689 	if (rc != 0)
690 		return (SDRC_ERROR);
691 
692 	if (count == 0) {
693 		smbsr_warn(sr, NT_STATUS_NO_MORE_FILES,
694 		    ERRDOS, ERROR_NO_MORE_FILES);
695 		return (SDRC_ERROR);
696 	}
697 
698 	rc = (MBC_LENGTH(&sr->reply) - sr->cur_reply_offset) - 8;
699 	if (smb_mbc_poke(&sr->reply, sr->cur_reply_offset,
700 	    "bwwbw", 1, count, rc+3, 5, rc) < 0) {
701 		return (SDRC_ERROR);
702 	}
703 
704 	return (SDRC_SUCCESS);
705 }
706 
707 /*
708  * smb_name83
709  *
710  * Format the filename for inclusion in the resume key. The filename
711  * returned in the resume key is 11 bytes:
712  * - up to 8 bytes of filename, space padded to 8 bytes
713  * - up to 3 bytes of ext, space padded to 3 bytes
714  *
715  * The name passed to smb_name83 should be a shortname or a name that
716  * doesn't require mangling.
717  *
718  * Examples:
719  *	"fname.txt"    -> "FNAME   TXT"
720  *	"fname.tx"     -> "FNAME   TX "
721  *	"filename"     -> "FILENAME   "
722  *	"filename.txt" -> "FILENAMETXT"
723  *	"FILE~1.TXT"   -> "FILE~1  TXT"
724  */
725 static void
726 smb_name83(const char *name, char *buf, size_t buflen)
727 {
728 	const char *p;
729 	char *pbuf;
730 	int i;
731 
732 	ASSERT(name && buf && (buflen >= SMB_NAME83_BUFLEN));
733 
734 	(void) strlcpy(buf, "           ", SMB_NAME83_BUFLEN);
735 
736 	/* Process "." and ".." up front */
737 	if ((strcmp(name, ".") == 0) || (strcmp(name, "..") == 0)) {
738 		(void) strncpy(buf, name, strlen(name));
739 		return;
740 	}
741 
742 	ASSERT(smb_needs_mangled(name) == B_FALSE);
743 
744 	/* Process basename */
745 	for (i = 0, p = name, pbuf = buf;
746 	    (i < SMB_NAME83_BASELEN) && (*p != '\0') && (*p != '.'); ++i)
747 		*pbuf++ = *p++;
748 
749 	/* Process the extension from the last dot in name */
750 	if ((p = strchr(name, '.')) != NULL) {
751 		++p;
752 		pbuf = &buf[SMB_NAME83_BASELEN];
753 		for (i = 0; (i < SMB_NAME83_EXTLEN) && (*p != '\0'); ++i)
754 			*pbuf++ = *p++;
755 	}
756 
757 	(void) smb_strupr(buf);
758 }
759