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auth: Explain why GSS_KRB5_CRED_NO_CI_FLAGS_X is needed
[Samba.git] / source3 / modules / vfs_unityed_media.c
blobb4d7dc09b492ec5d753ce8f3ff2ef8199aef7b40
1 /*
2 * Samba VFS module supporting multiple AVID clients sharing media.
3 *
4 * Copyright (C) 2005 Philip de Nier <philipn@users.sourceforge.net>
5 * Copyright (C) 2012 Andrew Klaassen <clawsoon@yahoo.com>
6 * Copyright (C) 2013 Milos Lukacek
7 * Copyright (C) 2013 Ralph Boehme <slow@samba.org>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22 * 02110-1301, USA.
23 */
24
25 /*
26 * Unityed Media is a Samba VFS module that allows multiple AVID
27 * clients to share media.
28 *
29 * Add this module to the vfs objects option in your Samba share
30 * configuration.
31 * eg.
32 *
33 * [avid_win]
34 * path = /video
35 * vfs objects = unityed_media
36 * ...
37 *
38 * It is recommended that you separate out Samba shares for Mac
39 * and Windows clients, and add the following options to the shares
40 * for Windows clients (NOTE: replace @ with *):
41 *
42 * veto files = /.DS_Store/._@/.Trash@/.Spotlight@/.hidden/.hotfiles@/.vol/
43 * delete veto files = yes
44 *
45 * This prevents hidden files from Mac clients interfering with Windows
46 * clients. If you find any more problem hidden files then add them to
47 * the list.
48 *
49 * Notes:
50 * This module is designed to work with AVID editing applications that
51 * look in the Avid MediaFiles or OMFI MediaFiles directory for media.
52 * It is not designed to work as expected in all circumstances for
53 * general use.
54 */
55
56
57 #include "includes.h"
58 #include "system/filesys.h"
59 #include "smbd/smbd.h"
60 #include "../smbd/globals.h"
61 #include "auth.h"
62 #include "../lib/tsocket/tsocket.h"
63 #include <libgen.h>
64
65 #define UM_PARAM_TYPE_NAME "unityed_media"
66
67 static const char *AVID_MXF_DIRNAME = "Avid MediaFiles/MXF";
68 static const size_t AVID_MXF_DIRNAME_LEN = 19;
69 static const char *OMFI_MEDIAFILES_DIRNAME = "OMFI MediaFiles";
70 static const size_t OMFI_MEDIAFILES_DIRNAME_LEN = 15;
71 static const char *APPLE_DOUBLE_PREFIX = "._";
72 static const size_t APPLE_DOUBLE_PREFIX_LEN = 2;
73 static int vfs_um_debug_level = DBGC_VFS;
74
75 enum um_clientid {UM_CLIENTID_NAME, UM_CLIENTID_IP, UM_CLIENTID_HOSTNAME};
76
77 struct um_config_data {
78 enum um_clientid clientid;
79 };
80
81 static const struct enum_list um_clientid[] = {
82 {UM_CLIENTID_NAME, "user"},
83 {UM_CLIENTID_IP, "ip"},
84 {UM_CLIENTID_HOSTNAME, "hostname"},
85 {-1, NULL}
86 };
87
88 /* supplements the directory list stream */
89 typedef struct um_dirinfo_struct {
90 DIR* dirstream;
91 char *dirpath;
92 char *clientPath;
93 bool isInMediaFiles;
94 char *clientSubDirname;
95 } um_dirinfo_struct;
96
97 /**
98 * Returns true and first group of digits in path, false and 0 otherwise
99 **/
100 static bool get_digit_group(const char *path, uintmax_t *digit)
101 {
102 const char *p = path;
103 char *endp = NULL;
104 codepoint_t cp;
105 size_t size;
106
107 DEBUG(10, ("get_digit_group entering with path '%s'\n",
108 path));
109
110 /*
111 * Delibiretly initialize to 0 because callers use this result
112 * even though the string doesn't contain any number and we
113 * returned false
114 */
115 *digit = 0;
116
117 while (*p) {
118 cp = next_codepoint(p, &size);
119 if (cp == -1) {
120 return false;
121 }
122 if ((size == 1) && (isdigit(cp))) {
123 *digit = (uintmax_t)strtoul(p, &endp, 10);
124 DEBUG(10, ("num_suffix = '%ju'\n",
125 *digit));
126 return true;
127 }
128 p += size;
129 }
130
131 return false;
132 }
133
134 /* Add "_<remote_name>.<number>" suffix to path or filename.
135 *
136 * Success: return 0
137 * Failure: set errno, path NULL, return -1
138 */
139
140 static int alloc_append_client_suffix(vfs_handle_struct *handle,
141 char **path)
142 {
143 int status = 0;
144 uintmax_t number;
145 const char *clientid;
146 struct um_config_data *config;
147
148 DEBUG(10, ("Entering with path '%s'\n", *path));
149
150 SMB_VFS_HANDLE_GET_DATA(handle, config,
151 struct um_config_data,
152 return -1);
153
154 (void)get_digit_group(*path, &number);
155
156 switch (config->clientid) {
157
158 case UM_CLIENTID_IP:
159 clientid = tsocket_address_inet_addr_string(
160 handle->conn->sconn->remote_address, talloc_tos());
161 if (clientid == NULL) {
162 errno = ENOMEM;
163 status = -1;
164 goto err;
165 }
166 break;
167
168 case UM_CLIENTID_HOSTNAME:
169 clientid = get_remote_machine_name();
170 break;
171
172 case UM_CLIENTID_NAME:
173 default:
174 clientid = get_current_username();
175 break;
176 }
177
178 *path = talloc_asprintf_append(*path, "_%s.%ju",
179 clientid, number);
180 if (*path == NULL) {
181 DEBUG(1, ("alloc_append_client_suffix "
182 "out of memory\n"));
183 errno = ENOMEM;
184 status = -1;
185 goto err;
186 }
187 DEBUG(10, ("Leaving with *path '%s'\n", *path));
188 err:
189 return status;
190 }
191
192 /* Returns true if the file or directory begins with the appledouble
193 * prefix.
194 */
195 static bool is_apple_double(const char* fname)
196 {
197 bool ret = false;
198
199 DEBUG(10, ("Entering with fname '%s'\n", fname));
200
201 if (strnequal(APPLE_DOUBLE_PREFIX, fname, APPLE_DOUBLE_PREFIX_LEN)) {
202 ret = true;
203 }
204 DEBUG(10, ("Leaving with ret '%s'\n",
205 ret == true ? "true" : "false"));
206 return ret;
207 }
208
209 static bool starts_with_media_dir(const char* media_dirname,
210 size_t media_dirname_len,
211 const char *path)
212 {
213 bool ret = false;
214 const char *path_start = path;
215
216 DEBUG(10, ("Entering with media_dirname '%s' "
217 "path '%s'\n", media_dirname, path));
218
219 /* Sometimes Samba gives us "./OMFI MediaFiles". */
220 if (strnequal(path, "./", 2)) {
221 path_start += 2;
222 }
223
224 if (strnequal(media_dirname, path_start, media_dirname_len)
225 &&
226 ((path_start[media_dirname_len] == '\0') ||
227 (path_start[media_dirname_len] == '/'))) {
228 ret = true;
229 }
230
231 DEBUG(10, ("Leaving with ret '%s'\n",
232 ret == true ? "true" : "false"));
233 return ret;
234 }
235
236 /*
237 * Returns true if the file or directory referenced by the path is ONE
238 * LEVEL below the AVID_MXF_DIRNAME or OMFI_MEDIAFILES_DIRNAME
239 * directory
240 */
241 static bool is_in_media_dir(const char *path)
242 {
243 int transition_count = 0;
244 const char *path_start = path;
245 const char *p;
246 const char *media_dirname;
247 size_t media_dirname_len;
248
249 DEBUG(10, ("Entering with path'%s' ", path));
250
251 /* Sometimes Samba gives us "./OMFI MediaFiles". */
252 if (strnequal(path, "./", 2)) {
253 path_start += 2;
254 }
255
256 if (strnequal(path_start, AVID_MXF_DIRNAME, AVID_MXF_DIRNAME_LEN)) {
257 media_dirname = AVID_MXF_DIRNAME;
258 media_dirname_len = AVID_MXF_DIRNAME_LEN;
259 } else if (strnequal(path_start,
260 OMFI_MEDIAFILES_DIRNAME,
261 OMFI_MEDIAFILES_DIRNAME_LEN)) {
262 media_dirname = OMFI_MEDIAFILES_DIRNAME;
263 media_dirname_len = OMFI_MEDIAFILES_DIRNAME_LEN;
264 } else {
265 return false;
266 }
267
268 if (path_start[media_dirname_len] == '\0') {
269 goto out;
270 }
271
272 p = path_start + media_dirname_len + 1;
273
274 while (true) {
275 if (*p == '\0' || *p == '/') {
276 if (strnequal(p - 3, "/..", 3)) {
277 transition_count--;
278 } else if ((p[-1] != '/') || !strnequal(p - 2, "/.", 2)) {
279 transition_count++;
280 }
281 }
282 if (*p == '\0') {
283 break;
284 }
285 p++;
286 }
287
288 out:
289 DEBUG(10, ("Going out with transition_count '%i'\n",
290 transition_count));
291 if (((transition_count == 1) && (media_dirname == AVID_MXF_DIRNAME))
292 ||
293 ((transition_count == 0) && (media_dirname == OMFI_MEDIAFILES_DIRNAME))) {
294 return true;
295 }
296 else return false;
297 }
298
299 /*
300 * Returns true if the file or directory referenced by the path is
301 * below the AVID_MEDIAFILES_DIRNAME or OMFI_MEDIAFILES_DIRNAME
302 * directory The AVID_MEDIAFILES_DIRNAME and OMFI_MEDIAFILES_DIRNAME
303 * are assumed to be in the root directory, which is generally a safe
304 * assumption in the fixed-path world of Avid.
305 */
306 static bool is_in_media_files(const char *path)
307 {
308 bool ret = false;
309
310 DEBUG(10, ("Entering with path '%s'\n", path));
311
312 if (starts_with_media_dir(AVID_MXF_DIRNAME,
313 AVID_MXF_DIRNAME_LEN, path) ||
314 starts_with_media_dir(OMFI_MEDIAFILES_DIRNAME,
315 OMFI_MEDIAFILES_DIRNAME_LEN, path)) {
316 ret = true;
317 }
318 DEBUG(10, ("Leaving with ret '%s'\n",
319 ret == true ? "true" : "false"));
320 return ret;
321 }
322
323
324 /* Add client suffix to "pure-number" path.
325 *
326 * Caller must free newPath.
327 *
328 * Success: return 0
329 * Failure: set errno, newPath NULL, return -1
330 */
331 static int alloc_get_client_path(vfs_handle_struct *handle,
332 TALLOC_CTX *ctx,
333 const char *path_in,
334 char **path_out)
335 {
336 int status = 0;
337 char *p;
338 char *digits;
339 size_t digits_len;
340 uintmax_t number;
341
342 *path_out = talloc_strdup(ctx, path_in);
343 if (*path_out == NULL) {
344 DEBUG(1, ("alloc_get_client_path ENOMEM\n"));
345 return -1;
346 }
347
348 (void)get_digit_group(*path_out, &number);
349
350 digits = talloc_asprintf(NULL, "%ju", number);
351 if (digits == NULL) {
352 DEBUG(1, ("alloc_get_client_path ENOMEM\n"));
353 return -1;
354 }
355 digits_len = strlen(digits);
356
357 p = strstr_m(path_in, digits);
358 if ((p)
359 &&
360 ((p[digits_len] == '\0') || (p[digits_len] == '/'))
361 &&
362 (((p - path_in > 0) && (p[-1] == '/'))
363 ||
364 (((p - path_in) > APPLE_DOUBLE_PREFIX_LEN)
365 &&
366 is_apple_double(p - APPLE_DOUBLE_PREFIX_LEN)
367 &&
368 (p[-(APPLE_DOUBLE_PREFIX_LEN + 1)] == '/'))))
369 {
370 (*path_out)[p - path_in + digits_len] = '\0';
371
372 status = alloc_append_client_suffix(handle, path_out);
373 if (status != 0) {
374 goto out;
375 }
376
377 *path_out = talloc_strdup_append(*path_out, p + digits_len);
378 if (*path_out == NULL) {
379 DEBUG(1, ("alloc_get_client_path ENOMEM\n"));
380 status = -1;
381 goto out;
382 }
383 }
384 out:
385 /* path_out must be freed in caller. */
386 DEBUG(10, ("Result:'%s'\n", *path_out));
387 return status;
388 }
389
390 /*
391 * Success: return 0
392 * Failure: set errno, return -1
393 */
394 static int alloc_get_client_smb_fname(struct vfs_handle_struct *handle,
395 TALLOC_CTX *ctx,
396 const struct smb_filename *smb_fname,
397 struct smb_filename **client_fname)
398 {
399 int status ;
400
401 DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
402 smb_fname->base_name));
403
404 *client_fname = cp_smb_filename(ctx, smb_fname);
405 if (*client_fname == NULL) {
406 DEBUG(1, ("cp_smb_filename returned NULL\n"));
407 return -1;
408 }
409 status = alloc_get_client_path(handle, ctx,
410 smb_fname->base_name,
411 &(*client_fname)->base_name);
412 if (status != 0) {
413 return -1;
414 }
415
416 DEBUG(10, ("Leaving with (*client_fname)->base_name "
417 "'%s'\n", (*client_fname)->base_name));
418
419 return 0;
420 }
421
422
423 /*
424 * Success: return 0
425 * Failure: set errno, return -1
426 */
427 static int alloc_set_client_dirinfo_path(struct vfs_handle_struct *handle,
428 TALLOC_CTX *ctx,
429 char **path,
430 const char *suffix_number)
431 {
432 int status;
433
434 DEBUG(10, ("Entering with suffix_number '%s'\n",
435 suffix_number));
436
437 *path = talloc_strdup(ctx, suffix_number);
438 if (*path == NULL) {
439 DEBUG(1, ("alloc_set_client_dirinfo_path ENOMEM\n"));
440 return -1;
441 }
442 status = alloc_append_client_suffix(handle, path);
443 if (status != 0) {
444 return -1;
445 }
446
447 DEBUG(10, ("Leaving with *path '%s'\n", *path));
448
449 return 0;
450 }
451
452 static int alloc_set_client_dirinfo(vfs_handle_struct *handle,
453 const char *fname,
454 struct um_dirinfo_struct **di_result)
455 {
456 int status = 0;
457 char *digits;
458 uintmax_t number;
459 struct um_dirinfo_struct *dip;
460
461 DEBUG(10, ("Entering with fname '%s'\n", fname));
462
463 *di_result = talloc(NULL, struct um_dirinfo_struct);
464 if (*di_result == NULL) {
465 goto err;
466 }
467 dip = *di_result;
468
469 dip->dirpath = talloc_strdup(dip, fname);
470 if (dip->dirpath == NULL) {
471 goto err;
472 }
473
474 if (!is_in_media_files(fname)) {
475 dip->isInMediaFiles = false;
476 dip->clientPath = NULL;
477 dip->clientSubDirname = NULL;
478 goto out;
479 }
480
481 dip->isInMediaFiles = true;
482
483 (void)get_digit_group(fname, &number);
484 digits = talloc_asprintf(talloc_tos(), "%ju", number);
485 if (digits == NULL) {
486 goto err;
487 }
488
489 status = alloc_set_client_dirinfo_path(handle, dip,
490 &dip->clientSubDirname,
491 digits);
492 if (status != 0) {
493 goto err;
494 }
495
496 status = alloc_get_client_path(handle, dip, fname,
497 &dip->clientPath);
498 if (status != 0 || dip->clientPath == NULL) {
499 goto err;
500 }
501
502 out:
503 DEBUG(10, ("Leaving with (*dirInfo)->dirpath '%s', "
504 "(*dirInfo)->clientPath '%s'\n",
505 dip->dirpath, dip->clientPath));
506 return status;
507
508 err:
509 DEBUG(1, ("Failing with fname '%s'\n", fname));
510 TALLOC_FREE(*di_result);
511 status = -1;
512 errno = ENOMEM;
513 return status;
514 }
515
516 /**********************************************************************
517 * VFS functions
518 **********************************************************************/
519
520 /*
521 * Success: return 0
522 * Failure: set errno, return -1
523 */
524 static int um_statvfs(struct vfs_handle_struct *handle,
525 const char *path,
526 struct vfs_statvfs_struct *statbuf)
527 {
528 int status;
529 char *clientPath = NULL;
530
531 DEBUG(10, ("Entering with path '%s'\n", path));
532
533 if (!is_in_media_files(path)) {
534 return SMB_VFS_NEXT_STATVFS(handle, path, statbuf);
535 }
536
537 status = alloc_get_client_path(handle, talloc_tos(),
538 path, &clientPath);
539 if (status != 0) {
540 goto err;
541 }
542
543 status = SMB_VFS_NEXT_STATVFS(handle, clientPath, statbuf);
544 err:
545 TALLOC_FREE(clientPath);
546 DEBUG(10, ("Leaving with path '%s'\n", path));
547 return status;
548 }
549
550 /* Success: return a um_dirinfo_struct cast as a DIR
551 * Failure: set errno, return NULL
552 */
553 static DIR *um_opendir(vfs_handle_struct *handle,
554 const char *fname,
555 const char *mask,
556 uint32_t attr)
557 {
558 struct um_dirinfo_struct *dirInfo;
559
560 DEBUG(10, ("Entering with fname '%s'\n", fname));
561
562 if (alloc_set_client_dirinfo(handle, fname, &dirInfo)) {
563 goto err;
564 }
565
566 if (!dirInfo->isInMediaFiles) {
567 dirInfo->dirstream = SMB_VFS_NEXT_OPENDIR(
568 handle, fname, mask, attr);
569 } else {
570 dirInfo->dirstream = SMB_VFS_NEXT_OPENDIR(
571 handle, dirInfo->clientPath, mask, attr);
572 }
573
574 if (dirInfo->dirstream == NULL) {
575 goto err;
576 }
577
578 DEBUG(10, ("Leaving with dirInfo->dirpath '%s', "
579 "dirInfo->clientPath '%s'\n",
580 dirInfo->dirpath,
581 dirInfo->clientPath));
582 return (DIR*)dirInfo;
583
584 err:
585 DEBUG(1, ("Failing with fname '%s'\n", fname));
586 TALLOC_FREE(dirInfo);
587 return NULL;
588 }
589
590 static DIR *um_fdopendir(vfs_handle_struct *handle,
591 files_struct *fsp,
592 const char *mask,
593 uint32_t attr)
594 {
595 struct um_dirinfo_struct *dirInfo = NULL;
596 DIR *dirstream;
597
598 DEBUG(10, ("Entering with fsp->fsp_name->base_name '%s'\n",
599 fsp->fsp_name->base_name));
600
601 dirstream = SMB_VFS_NEXT_FDOPENDIR(handle, fsp, mask, attr);
602 if (!dirstream) {
603 goto err;
604 }
605
606 if (alloc_set_client_dirinfo(handle,
607 fsp->fsp_name->base_name,
608 &dirInfo)) {
609 goto err;
610 }
611
612 dirInfo->dirstream = dirstream;
613
614 if (!dirInfo->isInMediaFiles) {
615 /*
616 * FIXME: this is the original code, something must be
617 * missing here, but what? -slow
618 */
619 goto out;
620 }
621
622 out:
623 DEBUG(10, ("Leaving with dirInfo->dirpath '%s', "
624 "dirInfo->clientPath '%s', "
625 "fsp->fsp_name->st.st_ex_mtime %s",
626 dirInfo->dirpath,
627 dirInfo->clientPath,
628 ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec))));
629 return (DIR *) dirInfo;
630
631 err:
632 DEBUG(1, ("Failing with fsp->fsp_name->base_name '%s'\n",
633 fsp->fsp_name->base_name));
634 TALLOC_FREE(dirInfo);
635 return NULL;
636 }
637
638 /*
639 * skip own suffixed directory
640 * replace own suffixed directory with non suffixed.
641 *
642 * Success: return dirent
643 * End of data: return NULL
644 * Failure: set errno, return NULL
645 */
646 static struct dirent *um_readdir(vfs_handle_struct *handle,
647 DIR *dirp,
648 SMB_STRUCT_STAT *sbuf)
649 {
650 um_dirinfo_struct* dirInfo = (um_dirinfo_struct*)dirp;
651 struct dirent *d = NULL;
652 int skip;
653
654 DEBUG(10, ("dirInfo->dirpath '%s', "
655 "dirInfo->clientPath '%s', "
656 "dirInfo->isInMediaFiles '%s', "
657 "dirInfo->clientSubDirname '%s'\n",
658 dirInfo->dirpath,
659 dirInfo->clientPath,
660 dirInfo->isInMediaFiles ? "true" : "false",
661 dirInfo->clientSubDirname));
662
663 if (!dirInfo->isInMediaFiles) {
664 return SMB_VFS_NEXT_READDIR(handle, dirInfo->dirstream, sbuf);
665 }
666
667 do {
668 const char* dname;
669 bool isAppleDouble;
670 char *digits;
671 size_t digits_len;
672 uintmax_t number;
673
674 skip = false;
675 d = SMB_VFS_NEXT_READDIR(handle, dirInfo->dirstream, sbuf);
676
677 if (d == NULL) {
678 break;
679 }
680
681 /* ignore apple double prefix for logic below */
682 if (is_apple_double(d->d_name)) {
683 dname = &d->d_name[APPLE_DOUBLE_PREFIX_LEN];
684 isAppleDouble = true;
685 } else {
686 dname = d->d_name;
687 isAppleDouble = false;
688 }
689
690 DEBUG(10, ("dname = '%s'\n", dname));
691
692 (void)get_digit_group(dname, &number);
693 digits = talloc_asprintf(talloc_tos(), "%ju", number);
694 if (digits == NULL) {
695 DEBUG(1, ("out of memory"));
696 goto err;
697 }
698 digits_len = strlen(digits);
699
700 if (alloc_set_client_dirinfo_path(handle,
701 dirInfo,
702 &((dirInfo)->clientSubDirname),
703 digits)) {
704 goto err;
705 }
706
707 /*
708 * If set to "true", vfs shows digits-only
709 * non-suffixed subdirectories. Normally, such
710 * subdirectories can exists only in non-media
711 * directories, so we set it to "false". Otherwise,
712 * if we have such subdirectories (probably created
713 * over not "unityed" connection), it can be little
714 * bit confusing.
715 */
716 if (strequal(dname, digits)) {
717 skip = false;
718 } else if (strequal(dname, dirInfo->clientSubDirname)) {
719 /*
720 * Remove suffix of this client's suffixed
721 * subdirectories
722 */
723 if (isAppleDouble) {
724 d->d_name[digits_len + APPLE_DOUBLE_PREFIX_LEN] = '\0';
725 } else {
726 d->d_name[digits_len] = '\0';
727 }
728 } else if (strnequal(digits, dname, digits_len)) {
729 /*
730 * Set to false to see another clients subdirectories
731 */
732 skip = false;
733 }
734 } while (skip);
735
736 DEBUG(10, ("Leaving um_readdir\n"));
737 return d;
738 err:
739 TALLOC_FREE(dirInfo);
740 return NULL;
741 }
742
743 static void um_seekdir(vfs_handle_struct *handle,
744 DIR *dirp,
745 long offset)
746 {
747 DEBUG(10, ("Entering and leaving um_seekdir\n"));
748 SMB_VFS_NEXT_SEEKDIR(handle,
749 ((um_dirinfo_struct*)dirp)->dirstream, offset);
750 }
751
752 static long um_telldir(vfs_handle_struct *handle,
753 DIR *dirp)
754 {
755 DEBUG(10, ("Entering and leaving um_telldir\n"));
756 return SMB_VFS_NEXT_TELLDIR(handle,
757 ((um_dirinfo_struct*)dirp)->dirstream);
758 }
759
760 static void um_rewinddir(vfs_handle_struct *handle,
761 DIR *dirp)
762 {
763 DEBUG(10, ("Entering and leaving um_rewinddir\n"));
764 SMB_VFS_NEXT_REWINDDIR(handle,
765 ((um_dirinfo_struct*)dirp)->dirstream);
766 }
767
768 static int um_mkdir(vfs_handle_struct *handle,
769 const char *path,
770 mode_t mode)
771 {
772 int status;
773 char *clientPath;
774 TALLOC_CTX *ctx;
775
776
777 DEBUG(10, ("Entering with path '%s'\n", path));
778
779 if (!is_in_media_files(path) || !is_in_media_dir(path)) {
780 return SMB_VFS_NEXT_MKDIR(handle, path, mode);
781 }
782
783 clientPath = NULL;
784 ctx = talloc_tos();
785
786 if ((status = alloc_get_client_path(handle, ctx,
787 path,
788 &clientPath))) {
789 goto err;
790 }
791
792 status = SMB_VFS_NEXT_MKDIR(handle, clientPath, mode);
793 err:
794 TALLOC_FREE(clientPath);
795 DEBUG(10, ("Leaving with path '%s'\n", path));
796 return status;
797 }
798
799 static int um_rmdir(vfs_handle_struct *handle,
800 const char *path)
801 {
802 int status;
803 char *clientPath;
804 TALLOC_CTX *ctx;
805
806
807 DEBUG(10, ("Entering with path '%s'\n", path));
808
809 if (!is_in_media_files(path)) {
810 return SMB_VFS_NEXT_RMDIR(handle, path);
811 }
812
813 clientPath = NULL;
814 ctx = talloc_tos();
815
816 if ((status = alloc_get_client_path(handle, ctx,
817 path,
818 &clientPath))) {
819 goto err;
820 }
821
822 status = SMB_VFS_NEXT_RMDIR(handle, clientPath);
823 err:
824 TALLOC_FREE(clientPath);
825 DEBUG(10, ("Leaving with path '%s'\n", path));
826 return status;
827 }
828
829 static int um_closedir(vfs_handle_struct *handle,
830 DIR *dirp)
831 {
832 DIR *realdirp = ((um_dirinfo_struct*)dirp)->dirstream;
833
834 TALLOC_FREE(dirp);
835
836 return SMB_VFS_NEXT_CLOSEDIR(handle, realdirp);
837 }
838
839 static void um_init_search_op(vfs_handle_struct *handle,
840 DIR *dirp)
841 {
842 DEBUG(10, ("Entering and leaving um_init_search_op\n"));
843
844 SMB_VFS_NEXT_INIT_SEARCH_OP(handle,
845 ((um_dirinfo_struct*)dirp)->dirstream);
846 }
847
848 static int um_open(vfs_handle_struct *handle,
849 struct smb_filename *smb_fname,
850 files_struct *fsp,
851 int flags,
852 mode_t mode)
853 {
854 int ret;
855 struct smb_filename *client_fname = NULL;
856
857 DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
858 smb_fname->base_name));
859
860 if (!is_in_media_files(smb_fname->base_name)) {
861 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
862 }
863
864 if (alloc_get_client_smb_fname(handle, talloc_tos(),
865 smb_fname,
866 &client_fname)) {
867 ret = -1;
868 goto err;
869 }
870
871 /*
872 * FIXME:
873 * What about fsp->fsp_name? We also have to get correct stat
874 * info into fsp and smb_fname for DB files, don't we?
875 */
876
877 DEBUG(10, ("Leaving with smb_fname->base_name '%s' "
878 "smb_fname->st.st_ex_mtime %s"
879 "fsp->fsp_name->st.st_ex_mtime %s",
880 smb_fname->base_name,
881 ctime(&(smb_fname->st.st_ex_mtime.tv_sec)),
882 ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec))));
883
884 ret = SMB_VFS_NEXT_OPEN(handle, client_fname, fsp, flags, mode);
885 err:
886 TALLOC_FREE(client_fname);
887 DEBUG(10, ("Leaving with smb_fname->base_name '%s'\n",
888 smb_fname->base_name));
889 return ret;
890 }
891
892 static NTSTATUS um_create_file(vfs_handle_struct *handle,
893 struct smb_request *req,
894 uint16_t root_dir_fid,
895 struct smb_filename *smb_fname,
896 uint32_t access_mask,
897 uint32_t share_access,
898 uint32_t create_disposition,
899 uint32_t create_options,
900 uint32_t file_attributes,
901 uint32_t oplock_request,
902 struct smb2_lease *lease,
903 uint64_t allocation_size,
904 uint32_t private_flags,
905 struct security_descriptor *sd,
906 struct ea_list *ea_list,
907 files_struct **result_fsp,
908 int *pinfo,
909 const struct smb2_create_blobs *in_context_blobs,
910 struct smb2_create_blobs *out_context_blobs)
911 {
912 NTSTATUS status;
913 struct smb_filename *client_fname = NULL;
914
915 DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
916 smb_fname->base_name));
917
918 if (!is_in_media_files(smb_fname->base_name)) {
919 return SMB_VFS_NEXT_CREATE_FILE(
920 handle,
921 req,
922 root_dir_fid,
923 smb_fname,
924 access_mask,
925 share_access,
926 create_disposition,
927 create_options,
928 file_attributes,
929 oplock_request,
930 lease,
931 allocation_size,
932 private_flags,
933 sd,
934 ea_list,
935 result_fsp,
936 pinfo,
937 in_context_blobs,
938 out_context_blobs);
939 }
940
941 if (alloc_get_client_smb_fname(handle, talloc_tos(),
942 smb_fname,
943 &client_fname)) {
944 status = map_nt_error_from_unix(errno);
945 goto err;
946 }
947
948 /*
949 * FIXME:
950 * This only creates files, so we don't have to worry about
951 * our fake directory stat'ing here. But we still need to
952 * route stat calls for DB files properly, right?
953 */
954 status = SMB_VFS_NEXT_CREATE_FILE(
955 handle,
956 req,
957 root_dir_fid,
958 client_fname,
959 access_mask,
960 share_access,
961 create_disposition,
962 create_options,
963 file_attributes,
964 oplock_request,
965 lease,
966 allocation_size,
967 private_flags,
968 sd,
969 ea_list,
970 result_fsp,
971 pinfo,
972 in_context_blobs,
973 out_context_blobs);
974 err:
975 TALLOC_FREE(client_fname);
976 DEBUG(10, ("Leaving with smb_fname->base_name '%s'"
977 "smb_fname->st.st_ex_mtime %s"
978 " fsp->fsp_name->st.st_ex_mtime %s",
979 smb_fname->base_name,
980 ctime(&(smb_fname->st.st_ex_mtime.tv_sec)),
981 (*result_fsp) && VALID_STAT((*result_fsp)->fsp_name->st) ?
982 ctime(&((*result_fsp)->fsp_name->st.st_ex_mtime.tv_sec)) :
983 "No fsp time\n"));
984 return status;
985 }
986
987 static int um_rename(vfs_handle_struct *handle,
988 const struct smb_filename *smb_fname_src,
989 const struct smb_filename *smb_fname_dst)
990 {
991 int status;
992 struct smb_filename *src_client_fname = NULL;
993 struct smb_filename *dst_client_fname = NULL;
994
995 DEBUG(10, ("Entering with "
996 "smb_fname_src->base_name '%s', "
997 "smb_fname_dst->base_name '%s'\n",
998 smb_fname_src->base_name,
999 smb_fname_dst->base_name));
1000
1001 if (!is_in_media_files(smb_fname_src->base_name)
1002 &&
1003 !is_in_media_files(smb_fname_dst->base_name)) {
1004 return SMB_VFS_NEXT_RENAME(handle, smb_fname_src,
1005 smb_fname_dst);
1006 }
1007
1008 status = alloc_get_client_smb_fname(handle, talloc_tos(),
1009 smb_fname_src,
1010 &src_client_fname);
1011 if (status != 0) {
1012 goto err;
1013 }
1014
1015 status = alloc_get_client_smb_fname(handle, talloc_tos(),
1016 smb_fname_dst,
1017 &dst_client_fname);
1018
1019 if (status != 0) {
1020 goto err;
1021 }
1022
1023 status = SMB_VFS_NEXT_RENAME(handle, src_client_fname,
1024 dst_client_fname);
1025 err:
1026 TALLOC_FREE(dst_client_fname);
1027 TALLOC_FREE(src_client_fname);
1028 DEBUG(10, ("Leaving with smb_fname_src->base_name '%s',"
1029 " smb_fname_dst->base_name '%s'\n",
1030 smb_fname_src->base_name,
1031 smb_fname_dst->base_name));
1032 return status;
1033 }
1034
1035 /*
1036 * Success: return 0
1037 * Failure: set errno, return -1
1038 */
1039 static int um_stat(vfs_handle_struct *handle,
1040 struct smb_filename *smb_fname)
1041 {
1042 int status = 0;
1043 struct smb_filename *client_fname = NULL;
1044
1045 DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
1046 smb_fname->base_name));
1047
1048 if (!is_in_media_files(smb_fname->base_name)) {
1049 return SMB_VFS_NEXT_STAT(handle, smb_fname);
1050 }
1051
1052 status = alloc_get_client_smb_fname(handle, talloc_tos(),
1053 smb_fname,
1054 &client_fname);
1055 if (status != 0) {
1056 goto err;
1057 }
1058 DEBUG(10, ("Stat'ing client_fname->base_name '%s'\n",
1059 client_fname->base_name));
1060
1061 status = SMB_VFS_NEXT_STAT(handle, client_fname);
1062 if (status != 0) {
1063 goto err;
1064 }
1065
1066 /*
1067 * Unlike functions with const smb_filename, we have to modify
1068 * smb_fname itself to pass our info back up.
1069 */
1070 DEBUG(10, ("Setting smb_fname '%s' stat from client_fname '%s'\n",
1071 smb_fname->base_name, client_fname->base_name));
1072 smb_fname->st = client_fname->st;
1073
1074 err:
1075 TALLOC_FREE(client_fname);
1076 DEBUG(10, ("Leaving with smb_fname->st.st_ex_mtime %s",
1077 ctime(&(smb_fname->st.st_ex_mtime.tv_sec))));
1078 return status;
1079 }
1080
1081 static int um_lstat(vfs_handle_struct *handle,
1082 struct smb_filename *smb_fname)
1083 {
1084 int status = 0;
1085 struct smb_filename *client_fname = NULL;
1086
1087 DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
1088 smb_fname->base_name));
1089
1090 if (!is_in_media_files(smb_fname->base_name)) {
1091 return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
1092 }
1093
1094 client_fname = NULL;
1095
1096 status = alloc_get_client_smb_fname(handle, talloc_tos(),
1097 smb_fname,
1098 &client_fname);
1099 if (status != 0) {
1100 goto err;
1101 }
1102 status = SMB_VFS_NEXT_LSTAT(handle, client_fname);
1103 if (status != 0) {
1104 goto err;
1105 }
1106
1107 smb_fname->st = client_fname->st;
1108
1109 err:
1110 TALLOC_FREE(client_fname);
1111 DEBUG(10, ("Leaving with smb_fname->st.st_ex_mtime %s",
1112 ctime(&(smb_fname->st.st_ex_mtime.tv_sec))));
1113 return status;
1114 }
1115
1116 static int um_fstat(vfs_handle_struct *handle,
1117 files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1118 {
1119 int status = 0;
1120
1121 DEBUG(10, ("Entering with fsp->fsp_name->base_name "
1122 "'%s'\n", fsp_str_dbg(fsp)));
1123
1124 status = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
1125 if (status != 0) {
1126 goto out;
1127 }
1128
1129 if ((fsp->fsp_name == NULL) ||
1130 !is_in_media_files(fsp->fsp_name->base_name)) {
1131 goto out;
1132 }
1133
1134 status = um_stat(handle, fsp->fsp_name);
1135 if (status != 0) {
1136 goto out;
1137 }
1138
1139 *sbuf = fsp->fsp_name->st;
1140
1141 out:
1142 DEBUG(10, ("Leaving with fsp->fsp_name->st.st_ex_mtime %s\n",
1143 fsp->fsp_name != NULL ?
1144 ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec)) : "0"));
1145 return status;
1146 }
1147
1148 static int um_unlink(vfs_handle_struct *handle,
1149 const struct smb_filename *smb_fname)
1150 {
1151 int status;
1152 struct smb_filename *client_fname = NULL;
1153
1154 DEBUG(10, ("Entering um_unlink\n"));
1155
1156 if (!is_in_media_files(smb_fname->base_name)) {
1157 return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
1158 }
1159
1160 status = alloc_get_client_smb_fname(handle, talloc_tos(),
1161 smb_fname,
1162 &client_fname);
1163 if (status != 0) {
1164 goto err;
1165 }
1166
1167 status = SMB_VFS_NEXT_UNLINK(handle, client_fname);
1168
1169 err:
1170 TALLOC_FREE(client_fname);
1171 return status;
1172 }
1173
1174 static int um_chmod(vfs_handle_struct *handle,
1175 const char *path,
1176 mode_t mode)
1177 {
1178 int status;
1179 char *client_path = NULL;
1180
1181 DEBUG(10, ("Entering um_chmod\n"));
1182
1183 if (!is_in_media_files(path)) {
1184 return SMB_VFS_NEXT_CHMOD(handle, path, mode);
1185 }
1186
1187 status = alloc_get_client_path(handle, talloc_tos(),
1188 path, &client_path);
1189 if (status != 0) {
1190 goto err;
1191 }
1192
1193 status = SMB_VFS_NEXT_CHMOD(handle, client_path, mode);
1194
1195 err:
1196 TALLOC_FREE(client_path);
1197 return status;
1198 }
1199
1200 static int um_chown(vfs_handle_struct *handle,
1201 const char *path,
1202 uid_t uid,
1203 gid_t gid)
1204 {
1205 int status;
1206 char *client_path = NULL;
1207
1208 DEBUG(10, ("Entering um_chown\n"));
1209
1210 if (!is_in_media_files(path)) {
1211 return SMB_VFS_NEXT_CHOWN(handle, path, uid, gid);
1212 }
1213
1214 status = alloc_get_client_path(handle, talloc_tos(),
1215 path, &client_path);
1216 if (status != 0) {
1217 goto err;
1218 }
1219
1220 status = SMB_VFS_NEXT_CHOWN(handle, client_path, uid, gid);
1221
1222 err:
1223 TALLOC_FREE(client_path);
1224 return status;
1225 }
1226
1227 static int um_lchown(vfs_handle_struct *handle,
1228 const char *path,
1229 uid_t uid,
1230 gid_t gid)
1231 {
1232 int status;
1233 char *client_path = NULL;
1234
1235 DEBUG(10, ("Entering um_lchown\n"));
1236 if (!is_in_media_files(path)) {
1237 return SMB_VFS_NEXT_LCHOWN(handle, path, uid, gid);
1238 }
1239
1240 status = alloc_get_client_path(handle, talloc_tos(),
1241 path, &client_path);
1242 if (status != 0) {
1243 goto err;
1244 }
1245
1246 status = SMB_VFS_NEXT_LCHOWN(handle, client_path, uid, gid);
1247
1248 err:
1249 TALLOC_FREE(client_path);
1250 return status;
1251 }
1252
1253 static int um_chdir(vfs_handle_struct *handle,
1254 const char *path)
1255 {
1256 int status;
1257 char *client_path = NULL;
1258
1259 DEBUG(10, ("Entering um_chdir\n"));
1260
1261 if (!is_in_media_files(path)) {
1262 return SMB_VFS_NEXT_CHDIR(handle, path);
1263 }
1264
1265 status = alloc_get_client_path(handle, talloc_tos(),
1266 path, &client_path);
1267 if (status != 0) {
1268 goto err;
1269 }
1270
1271 status = SMB_VFS_NEXT_CHDIR(handle, client_path);
1272
1273 err:
1274 TALLOC_FREE(client_path);
1275 return status;
1276 }
1277
1278 static int um_ntimes(vfs_handle_struct *handle,
1279 const struct smb_filename *smb_fname,
1280 struct smb_file_time *ft)
1281 {
1282 int status;
1283 struct smb_filename *client_fname = NULL;
1284
1285 DEBUG(10, ("Entering um_ntimes\n"));
1286
1287 if (!is_in_media_files(smb_fname->base_name)) {
1288 return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
1289 }
1290
1291 status = alloc_get_client_smb_fname(handle, talloc_tos(),
1292 smb_fname, &client_fname);
1293 if (status != 0) {
1294 goto err;
1295 }
1296
1297 status = SMB_VFS_NEXT_NTIMES(handle, client_fname, ft);
1298
1299 err:
1300 TALLOC_FREE(client_fname);
1301 return status;
1302 }
1303
1304 static int um_symlink(vfs_handle_struct *handle,
1305 const char *oldpath,
1306 const char *newpath)
1307 {
1308 int status;
1309 char *old_client_path = NULL;
1310 char *new_client_path = NULL;
1311
1312 DEBUG(10, ("Entering um_symlink\n"));
1313
1314 if (!is_in_media_files(oldpath) && !is_in_media_files(newpath)) {
1315 return SMB_VFS_NEXT_SYMLINK(handle, oldpath, newpath);
1316 }
1317
1318 status = alloc_get_client_path(handle, talloc_tos(),
1319 oldpath, &old_client_path);
1320 if (status != 0) {
1321 goto err;
1322 }
1323
1324 status = alloc_get_client_path(handle, talloc_tos(),
1325 newpath, &new_client_path);
1326 if (status != 0) {
1327 goto err;
1328 }
1329
1330 status = SMB_VFS_NEXT_SYMLINK(handle,
1331 old_client_path,
1332 new_client_path);
1333
1334 err:
1335 TALLOC_FREE(new_client_path);
1336 TALLOC_FREE(old_client_path);
1337 return status;
1338 }
1339
1340 static int um_readlink(vfs_handle_struct *handle,
1341 const char *path,
1342 char *buf,
1343 size_t bufsiz)
1344 {
1345 int status;
1346 char *client_path = NULL;
1347
1348 DEBUG(10, ("Entering um_readlink\n"));
1349
1350 if (!is_in_media_files(path)) {
1351 return SMB_VFS_NEXT_READLINK(handle, path, buf, bufsiz);
1352 }
1353
1354 status = alloc_get_client_path(handle, talloc_tos(),
1355 path, &client_path);
1356 if (status != 0) {
1357 goto err;
1358 }
1359
1360 status = SMB_VFS_NEXT_READLINK(handle, client_path, buf, bufsiz);
1361
1362 err:
1363 TALLOC_FREE(client_path);
1364 return status;
1365 }
1366
1367 static int um_link(vfs_handle_struct *handle,
1368 const char *oldpath,
1369 const char *newpath)
1370 {
1371 int status;
1372 char *old_client_path = NULL;
1373 char *new_client_path = NULL;
1374
1375 DEBUG(10, ("Entering um_link\n"));
1376 if (!is_in_media_files(oldpath) && !is_in_media_files(newpath)) {
1377 return SMB_VFS_NEXT_LINK(handle, oldpath, newpath);
1378 }
1379
1380 status = alloc_get_client_path(handle, talloc_tos(),
1381 oldpath, &old_client_path);
1382 if (status != 0) {
1383 goto err;
1384 }
1385
1386 status = alloc_get_client_path(handle, talloc_tos(),
1387 newpath, &new_client_path);
1388 if (status != 0) {
1389 goto err;
1390 }
1391
1392 status = SMB_VFS_NEXT_LINK(handle, old_client_path, new_client_path);
1393
1394 err:
1395 TALLOC_FREE(new_client_path);
1396 TALLOC_FREE(old_client_path);
1397 return status;
1398 }
1399
1400 static int um_mknod(vfs_handle_struct *handle,
1401 const char *pathname,
1402 mode_t mode,
1403 SMB_DEV_T dev)
1404 {
1405 int status;
1406 char *client_path = NULL;
1407
1408 DEBUG(10, ("Entering um_mknod\n"));
1409 if (!is_in_media_files(pathname)) {
1410 return SMB_VFS_NEXT_MKNOD(handle, pathname, mode, dev);
1411 }
1412
1413 status = alloc_get_client_path(handle, talloc_tos(),
1414 pathname, &client_path);
1415 if (status != 0) {
1416 goto err;
1417 }
1418
1419 status = SMB_VFS_NEXT_MKNOD(handle, client_path, mode, dev);
1420
1421 err:
1422 TALLOC_FREE(client_path);
1423 return status;
1424 }
1425
1426 static char *um_realpath(vfs_handle_struct *handle,
1427 const char *path)
1428 {
1429 char *buf = NULL;
1430 char *client_path = NULL;
1431 int status;
1432
1433 DEBUG(10, ("Entering um_realpath\n"));
1434
1435 if (!is_in_media_files(path)) {
1436 return SMB_VFS_NEXT_REALPATH(handle, path);
1437 }
1438
1439 status = alloc_get_client_path(handle, talloc_tos(),
1440 path, &client_path);
1441 if (status != 0) {
1442 goto err;
1443 }
1444
1445 buf = SMB_VFS_NEXT_REALPATH(handle, client_path);
1446
1447 err:
1448 TALLOC_FREE(client_path);
1449 return buf;
1450 }
1451
1452 static int um_chflags(vfs_handle_struct *handle,
1453 const char *path,
1454 unsigned int flags)
1455 {
1456 int status;
1457 char *client_path = NULL;
1458
1459 DEBUG(10, ("Entering um_chflags\n"));
1460
1461 if (!is_in_media_files(path)) {
1462 return SMB_VFS_NEXT_CHFLAGS(handle, path, flags);
1463 }
1464
1465 status = alloc_get_client_path(handle, talloc_tos(),
1466 path, &client_path);
1467 if (status != 0) {
1468 goto err;
1469 }
1470
1471 status = SMB_VFS_NEXT_CHFLAGS(handle, client_path, flags);
1472 err:
1473 TALLOC_FREE(client_path);
1474 return status;
1475 }
1476
1477 static NTSTATUS um_streaminfo(struct vfs_handle_struct *handle,
1478 struct files_struct *fsp,
1479 const char *fname,
1480 TALLOC_CTX *ctx,
1481 unsigned int *num_streams,
1482 struct stream_struct **streams)
1483 {
1484 NTSTATUS status;
1485 char *client_path = NULL;
1486 int ret;
1487
1488 DEBUG(10, ("Entering um_streaminfo\n"));
1489
1490 if (!is_in_media_files(fname)) {
1491 return SMB_VFS_NEXT_STREAMINFO(handle, fsp, fname,
1492 ctx, num_streams, streams);
1493 }
1494
1495 ret = alloc_get_client_path(handle, talloc_tos(),
1496 fname, &client_path);
1497 if (ret != 0) {
1498 status = map_nt_error_from_unix(errno);
1499 goto err;
1500 }
1501
1502 /*
1503 * This only works on files, so we don't have to worry about
1504 * our fake directory stat'ing here. But what does this
1505 * function do, exactly? Does it need extra modifications for
1506 * the Avid stuff?
1507 */
1508 status = SMB_VFS_NEXT_STREAMINFO(handle, fsp, client_path,
1509 ctx, num_streams, streams);
1510 err:
1511 TALLOC_FREE(client_path);
1512 return status;
1513 }
1514
1515 /*
1516 * Ignoring get_real_filename function because the default doesn't do
1517 * anything.
1518 */
1519
1520 static NTSTATUS um_get_nt_acl(vfs_handle_struct *handle,
1521 const char *name,
1522 uint32_t security_info,
1523 TALLOC_CTX *mem_ctx,
1524 struct security_descriptor **ppdesc)
1525 {
1526 NTSTATUS status;
1527 char *client_path = NULL;
1528 int ret;
1529
1530 DEBUG(10, ("Entering um_get_nt_acl\n"));
1531
1532 if (!is_in_media_files(name)) {
1533 return SMB_VFS_NEXT_GET_NT_ACL(handle, name,
1534 security_info,
1535 mem_ctx, ppdesc);
1536 }
1537
1538 ret = alloc_get_client_path(handle, talloc_tos(),
1539 name, &client_path);
1540 if (ret != 0) {
1541 status = map_nt_error_from_unix(errno);
1542 goto err;
1543 }
1544
1545 status = SMB_VFS_NEXT_GET_NT_ACL(handle, client_path,
1546 security_info,
1547 mem_ctx, ppdesc);
1548 err:
1549 TALLOC_FREE(client_path);
1550 return status;
1551 }
1552
1553 static int um_chmod_acl(vfs_handle_struct *handle,
1554 const char *path,
1555 mode_t mode)
1556 {
1557 int status;
1558 char *client_path = NULL;
1559
1560 DEBUG(10, ("Entering um_chmod_acl\n"));
1561
1562 if (!is_in_media_files(path)) {
1563 return SMB_VFS_NEXT_CHMOD_ACL(handle, path, mode);
1564 }
1565
1566 status = alloc_get_client_path(handle, talloc_tos(),
1567 path, &client_path);
1568 if (status != 0) {
1569 goto err;
1570 }
1571
1572 status = SMB_VFS_NEXT_CHMOD_ACL(handle, client_path, mode);
1573
1574 err:
1575 TALLOC_FREE(client_path);
1576 return status;
1577 }
1578
1579 static SMB_ACL_T um_sys_acl_get_file(vfs_handle_struct *handle,
1580 const char *path_p,
1581 SMB_ACL_TYPE_T type,
1582 TALLOC_CTX *mem_ctx)
1583 {
1584 SMB_ACL_T ret;
1585 char *client_path = NULL;
1586 int status;
1587
1588 DEBUG(10, ("Entering um_sys_acl_get_file\n"));
1589
1590 if (!is_in_media_files(path_p)) {
1591 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, path_p,
1592 type, mem_ctx);
1593 }
1594
1595 status = alloc_get_client_path(handle, talloc_tos(),
1596 path_p, &client_path);
1597 if (status != 0) {
1598 ret = NULL;
1599 goto err;
1600 }
1601
1602 ret = SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, client_path, type, mem_ctx);
1603
1604 err:
1605 TALLOC_FREE(client_path);
1606 return ret;
1607 }
1608
1609 static int um_sys_acl_set_file(vfs_handle_struct *handle,
1610 const char *name,
1611 SMB_ACL_TYPE_T acltype,
1612 SMB_ACL_T theacl)
1613 {
1614 int status;
1615 char *client_path = NULL;
1616
1617 DEBUG(10, ("Entering um_sys_acl_set_file\n"));
1618
1619 if (!is_in_media_files(name)) {
1620 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, name,
1621 acltype, theacl);
1622 }
1623
1624 status = alloc_get_client_path(handle, talloc_tos(),
1625 name, &client_path);
1626 if (status != 0) {
1627 goto err;
1628 }
1629
1630 status = SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, client_path,
1631 acltype, theacl);
1632
1633 err:
1634 TALLOC_FREE(client_path);
1635 return status;
1636 }
1637
1638 static int um_sys_acl_delete_def_file(vfs_handle_struct *handle,
1639 const char *path)
1640 {
1641 int status;
1642 char *client_path = NULL;
1643
1644 DEBUG(10, ("Entering um_sys_acl_delete_def_file\n"));
1645
1646 if (!is_in_media_files(path)) {
1647 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, path);
1648 }
1649
1650 status = alloc_get_client_path(handle, talloc_tos(),
1651 path, &client_path);
1652 if (status != 0) {
1653 goto err;
1654 }
1655
1656 status = SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, client_path);
1657
1658 err:
1659 TALLOC_FREE(client_path);
1660 return status;
1661 }
1662
1663 static ssize_t um_getxattr(struct vfs_handle_struct *handle,
1664 const char *path,
1665 const char *name,
1666 void *value,
1667 size_t size)
1668 {
1669 ssize_t ret;
1670 char *client_path = NULL;
1671 int status;
1672
1673 DEBUG(10, ("Entering um_getxattr\n"));
1674 if (!is_in_media_files(path)) {
1675 return SMB_VFS_NEXT_GETXATTR(handle, path, name, value, size);
1676 }
1677
1678 status = alloc_get_client_path(handle, talloc_tos(),
1679 path, &client_path);
1680 if (status != 0) {
1681 ret = -1;
1682 goto err;
1683 }
1684
1685 ret = SMB_VFS_NEXT_GETXATTR(handle, client_path, name, value, size);
1686 err:
1687 TALLOC_FREE(client_path);
1688 return ret;
1689 }
1690
1691 static ssize_t um_listxattr(struct vfs_handle_struct *handle,
1692 const char *path,
1693 char *list,
1694 size_t size)
1695 {
1696 ssize_t ret;
1697 char *client_path = NULL;
1698 int status;
1699
1700 DEBUG(10, ("Entering um_listxattr\n"));
1701
1702 if (!is_in_media_files(path)) {
1703 return SMB_VFS_NEXT_LISTXATTR(handle, path, list, size);
1704 }
1705
1706 status = alloc_get_client_path(handle, talloc_tos(),
1707 path, &client_path);
1708 if (status != 0) {
1709 ret = -1;
1710 goto err;
1711 }
1712
1713 ret = SMB_VFS_NEXT_LISTXATTR(handle, client_path, list, size);
1714
1715 err:
1716 TALLOC_FREE(client_path);
1717 return ret;
1718 }
1719
1720 static int um_removexattr(struct vfs_handle_struct *handle,
1721 const char *path,
1722 const char *name)
1723 {
1724 int status;
1725 char *client_path = NULL;
1726
1727 DEBUG(10, ("Entering um_removexattr\n"));
1728
1729 if (!is_in_media_files(path)) {
1730 return SMB_VFS_NEXT_REMOVEXATTR(handle, path, name);
1731 }
1732
1733 status = alloc_get_client_path(handle, talloc_tos(),
1734 path, &client_path);
1735 if (status != 0) {
1736 goto err;
1737 }
1738
1739 status = SMB_VFS_NEXT_REMOVEXATTR(handle, client_path, name);
1740
1741 err:
1742 TALLOC_FREE(client_path);
1743 return status;
1744 }
1745
1746 static int um_setxattr(struct vfs_handle_struct *handle,
1747 const char *path,
1748 const char *name,
1749 const void *value,
1750 size_t size,
1751 int flags)
1752 {
1753 int status;
1754 char *client_path = NULL;
1755
1756 DEBUG(10, ("Entering um_setxattr\n"));
1757
1758 if (!is_in_media_files(path)) {
1759 return SMB_VFS_NEXT_SETXATTR(handle, path, name, value,
1760 size, flags);
1761 }
1762
1763 status = alloc_get_client_path(handle, talloc_tos(),
1764 path, &client_path);
1765 if (status != 0) {
1766 goto err;
1767 }
1768
1769 status = SMB_VFS_NEXT_SETXATTR(handle, client_path, name, value,
1770 size, flags);
1771
1772 err:
1773 TALLOC_FREE(client_path);
1774 return status;
1775 }
1776
1777 static bool um_is_offline(struct vfs_handle_struct *handle,
1778 const struct smb_filename *fname,
1779 SMB_STRUCT_STAT *sbuf)
1780 {
1781 bool ret;
1782 struct smb_filename *client_fname = NULL;
1783 int status;
1784
1785 DEBUG(10, ("Entering um_is_offline\n"));
1786
1787 if (!is_in_media_files(fname->base_name)) {
1788 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1789 }
1790
1791 status = alloc_get_client_smb_fname(handle, talloc_tos(),
1792 fname, &client_fname);
1793 if (status != 0) {
1794 ret = false;
1795 goto err;
1796 }
1797
1798 ret = SMB_VFS_NEXT_IS_OFFLINE(handle, client_fname, sbuf);
1799
1800 err:
1801 TALLOC_FREE(client_fname);
1802 return ret;
1803 }
1804
1805 static int um_set_offline(struct vfs_handle_struct *handle,
1806 const struct smb_filename *fname)
1807 {
1808 int status;
1809 struct smb_filename *client_fname = NULL;
1810
1811 DEBUG(10, ("Entering um_set_offline\n"));
1812
1813 if (!is_in_media_files(fname->base_name)) {
1814 return SMB_VFS_NEXT_SET_OFFLINE(handle, fname);
1815 }
1816
1817 status = alloc_get_client_smb_fname(handle, talloc_tos(),
1818 fname, &client_fname);
1819 if (status != 0) {
1820 goto err;
1821 }
1822
1823 status = SMB_VFS_NEXT_SET_OFFLINE(handle, client_fname);
1824
1825 err:
1826 TALLOC_FREE(client_fname);
1827 return status;
1828 }
1829
1830 static int um_connect(vfs_handle_struct *handle,
1831 const char *service,
1832 const char *user)
1833 {
1834 int rc;
1835 struct um_config_data *config;
1836 int enumval;
1837
1838 rc = SMB_VFS_NEXT_CONNECT(handle, service, user);
1839 if (rc != 0) {
1840 return rc;
1841 }
1842
1843 config = talloc_zero(handle->conn, struct um_config_data);
1844 if (!config) {
1845 DEBUG(1, ("talloc_zero() failed\n"));
1846 errno = ENOMEM;
1847 return -1;
1848 }
1849
1850 enumval = lp_parm_enum(SNUM(handle->conn), UM_PARAM_TYPE_NAME,
1851 "clientid", um_clientid, UM_CLIENTID_NAME);
1852 if (enumval == -1) {
1853 DEBUG(1, ("value for %s: type unknown\n",
1854 UM_PARAM_TYPE_NAME));
1855 return -1;
1856 }
1857 config->clientid = (enum um_clientid)enumval;
1858
1859 SMB_VFS_HANDLE_SET_DATA(handle, config,
1860 NULL, struct um_config_data,
1861 return -1);
1862
1863 return 0;
1864 }
1865
1866 /* VFS operations structure */
1867
1868 static struct vfs_fn_pointers vfs_um_fns = {
1869 .connect_fn = um_connect,
1870
1871 /* Disk operations */
1872
1873 .statvfs_fn = um_statvfs,
1874
1875 /* Directory operations */
1876
1877 .opendir_fn = um_opendir,
1878 .fdopendir_fn = um_fdopendir,
1879 .readdir_fn = um_readdir,
1880 .seekdir_fn = um_seekdir,
1881 .telldir_fn = um_telldir,
1882 .rewind_dir_fn = um_rewinddir,
1883 .mkdir_fn = um_mkdir,
1884 .rmdir_fn = um_rmdir,
1885 .closedir_fn = um_closedir,
1886 .init_search_op_fn = um_init_search_op,
1887
1888 /* File operations */
1889
1890 .open_fn = um_open,
1891 .create_file_fn = um_create_file,
1892 .rename_fn = um_rename,
1893 .stat_fn = um_stat,
1894 .lstat_fn = um_lstat,
1895 .fstat_fn = um_fstat,
1896 .unlink_fn = um_unlink,
1897 .chmod_fn = um_chmod,
1898 .chown_fn = um_chown,
1899 .lchown_fn = um_lchown,
1900 .chdir_fn = um_chdir,
1901 .ntimes_fn = um_ntimes,
1902 .symlink_fn = um_symlink,
1903 .readlink_fn = um_readlink,
1904 .link_fn = um_link,
1905 .mknod_fn = um_mknod,
1906 .realpath_fn = um_realpath,
1907 .chflags_fn = um_chflags,
1908 .streaminfo_fn = um_streaminfo,
1909
1910 /* NT ACL operations. */
1911
1912 .get_nt_acl_fn = um_get_nt_acl,
1913
1914 /* POSIX ACL operations. */
1915
1916 .chmod_acl_fn = um_chmod_acl,
1917
1918 .sys_acl_get_file_fn = um_sys_acl_get_file,
1919 .sys_acl_set_file_fn = um_sys_acl_set_file,
1920 .sys_acl_delete_def_file_fn = um_sys_acl_delete_def_file,
1921
1922 /* EA operations. */
1923 .getxattr_fn = um_getxattr,
1924 .listxattr_fn = um_listxattr,
1925 .removexattr_fn = um_removexattr,
1926 .setxattr_fn = um_setxattr,
1927
1928 /* aio operations */
1929
1930 /* offline operations */
1931 .is_offline_fn = um_is_offline,
1932 .set_offline_fn = um_set_offline
1933 };
1934
1935 NTSTATUS vfs_unityed_media_init(void);
1936 NTSTATUS vfs_unityed_media_init(void)
1937 {
1938 NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
1939 "unityed_media", &vfs_um_fns);
1940 if (!NT_STATUS_IS_OK(ret)) {
1941 return ret;
1942 }
1943
1944 vfs_um_debug_level = debug_add_class("unityed_media");
1945
1946 if (vfs_um_debug_level == -1) {
1947 vfs_um_debug_level = DBGC_VFS;
1948 DEBUG(1, ("unityed_media_init: Couldn't register custom "
1949 "debugging class.\n"));
1950 }
1951
1952 return ret;
1953 }
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