s3: VFS: Modify SMB_VFS_GET_NT_ACL to take a const struct smb_filename * instead...
[kamenim/samba-autobuild/.git] / source3 / modules / vfs_unityed_media.c
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 struct smb_filename *smb_fname,
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         struct smb_filename *client_smb_fname = NULL;
1529         int ret;
1530
1531         DEBUG(10, ("Entering um_get_nt_acl\n"));
1532
1533         if (!is_in_media_files(smb_fname->base_name)) {
1534                 return SMB_VFS_NEXT_GET_NT_ACL(handle, smb_fname,
1535                                                security_info,
1536                                                mem_ctx, ppdesc);
1537         }
1538
1539         ret = alloc_get_client_path(handle, talloc_tos(),
1540                                     smb_fname->base_name, &client_path);
1541         if (ret != 0) {
1542                 status = map_nt_error_from_unix(errno);
1543                 goto err;
1544         }
1545
1546         client_smb_fname = synthetic_smb_fname(talloc_tos(),
1547                                         client_path,
1548                                         NULL,
1549                                         NULL);
1550         if (client_smb_fname == NULL) {
1551                 TALLOC_FREE(client_path);
1552                 return NT_STATUS_NO_MEMORY;
1553         }
1554
1555         status = SMB_VFS_NEXT_GET_NT_ACL(handle, client_smb_fname,
1556                                          security_info,
1557                                          mem_ctx, ppdesc);
1558 err:
1559         TALLOC_FREE(client_smb_fname);
1560         TALLOC_FREE(client_path);
1561         return status;
1562 }
1563
1564 static int um_chmod_acl(vfs_handle_struct *handle,
1565                         const char *path,
1566                         mode_t mode)
1567 {
1568         int status;
1569         char *client_path = NULL;
1570
1571         DEBUG(10, ("Entering um_chmod_acl\n"));
1572
1573         if (!is_in_media_files(path)) {
1574                 return SMB_VFS_NEXT_CHMOD_ACL(handle, path, mode);
1575         }
1576
1577         status = alloc_get_client_path(handle, talloc_tos(),
1578                                        path, &client_path);
1579         if (status != 0) {
1580                 goto err;
1581         }
1582
1583         status = SMB_VFS_NEXT_CHMOD_ACL(handle, client_path, mode);
1584
1585 err:
1586         TALLOC_FREE(client_path);
1587         return status;
1588 }
1589
1590 static SMB_ACL_T um_sys_acl_get_file(vfs_handle_struct *handle,
1591                                      const char *path_p,
1592                                      SMB_ACL_TYPE_T type,
1593                                      TALLOC_CTX *mem_ctx)
1594 {
1595         SMB_ACL_T ret;
1596         char *client_path = NULL;
1597         int status;
1598
1599         DEBUG(10, ("Entering um_sys_acl_get_file\n"));
1600
1601         if (!is_in_media_files(path_p)) {
1602                 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, path_p,
1603                                                      type, mem_ctx);
1604         }
1605
1606         status = alloc_get_client_path(handle, talloc_tos(),
1607                                        path_p, &client_path);
1608         if (status != 0) {
1609                 ret = NULL;
1610                 goto err;
1611         }
1612
1613         ret = SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, client_path, type, mem_ctx);
1614
1615 err:
1616         TALLOC_FREE(client_path);
1617         return ret;
1618 }
1619
1620 static int um_sys_acl_set_file(vfs_handle_struct *handle,
1621                                const char *name,
1622                                SMB_ACL_TYPE_T acltype,
1623                                SMB_ACL_T theacl)
1624 {
1625         int status;
1626         char *client_path = NULL;
1627
1628         DEBUG(10, ("Entering um_sys_acl_set_file\n"));
1629
1630         if (!is_in_media_files(name)) {
1631                 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, name,
1632                                                      acltype, theacl);
1633         }
1634
1635         status = alloc_get_client_path(handle, talloc_tos(),
1636                                        name, &client_path);
1637         if (status != 0) {
1638                 goto err;
1639         }
1640
1641         status = SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, client_path,
1642                                                acltype, theacl);
1643
1644 err:
1645         TALLOC_FREE(client_path);
1646         return status;
1647 }
1648
1649 static int um_sys_acl_delete_def_file(vfs_handle_struct *handle,
1650                                       const char *path)
1651 {
1652         int status;
1653         char *client_path = NULL;
1654
1655         DEBUG(10, ("Entering um_sys_acl_delete_def_file\n"));
1656
1657         if (!is_in_media_files(path)) {
1658                 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, path);
1659         }
1660
1661         status = alloc_get_client_path(handle, talloc_tos(),
1662                                             path, &client_path);
1663         if (status != 0) {
1664                 goto err;
1665         }
1666
1667         status = SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, client_path);
1668
1669 err:
1670         TALLOC_FREE(client_path);
1671         return status;
1672 }
1673
1674 static ssize_t um_getxattr(struct vfs_handle_struct *handle,
1675                            const char *path,
1676                            const char *name,
1677                            void *value,
1678                            size_t size)
1679 {
1680         ssize_t ret;
1681         char *client_path = NULL;
1682         int status;
1683
1684         DEBUG(10, ("Entering um_getxattr\n"));
1685         if (!is_in_media_files(path)) {
1686                 return SMB_VFS_NEXT_GETXATTR(handle, path, name, value, size);
1687         }
1688
1689         status = alloc_get_client_path(handle, talloc_tos(),
1690                                        path, &client_path);
1691         if (status != 0) {
1692                 ret = -1;
1693                 goto err;
1694         }
1695
1696         ret = SMB_VFS_NEXT_GETXATTR(handle, client_path, name, value, size);
1697 err:
1698         TALLOC_FREE(client_path);
1699         return ret;
1700 }
1701
1702 static ssize_t um_listxattr(struct vfs_handle_struct *handle,
1703                             const char *path,
1704                             char *list,
1705                             size_t size)
1706 {
1707         ssize_t ret;
1708         char *client_path = NULL;
1709         int status;
1710
1711         DEBUG(10, ("Entering um_listxattr\n"));
1712
1713         if (!is_in_media_files(path)) {
1714                 return SMB_VFS_NEXT_LISTXATTR(handle, path, list, size);
1715         }
1716
1717         status = alloc_get_client_path(handle, talloc_tos(),
1718                                        path, &client_path);
1719         if (status != 0) {
1720                 ret = -1;
1721                 goto err;
1722         }
1723
1724         ret = SMB_VFS_NEXT_LISTXATTR(handle, client_path, list, size);
1725
1726 err:
1727         TALLOC_FREE(client_path);
1728         return ret;
1729 }
1730
1731 static int um_removexattr(struct vfs_handle_struct *handle,
1732                           const char *path,
1733                           const char *name)
1734 {
1735         int status;
1736         char *client_path = NULL;
1737
1738         DEBUG(10, ("Entering um_removexattr\n"));
1739
1740         if (!is_in_media_files(path)) {
1741                 return SMB_VFS_NEXT_REMOVEXATTR(handle, path, name);
1742         }
1743
1744         status = alloc_get_client_path(handle, talloc_tos(),
1745                                        path, &client_path);
1746         if (status != 0) {
1747                 goto err;
1748         }
1749
1750         status = SMB_VFS_NEXT_REMOVEXATTR(handle, client_path, name);
1751
1752 err:
1753         TALLOC_FREE(client_path);
1754         return status;
1755 }
1756
1757 static int um_setxattr(struct vfs_handle_struct *handle,
1758                        const char *path,
1759                        const char *name,
1760                        const void *value,
1761                        size_t size,
1762                        int flags)
1763 {
1764         int status;
1765         char *client_path = NULL;
1766
1767         DEBUG(10, ("Entering um_setxattr\n"));
1768
1769         if (!is_in_media_files(path)) {
1770                 return SMB_VFS_NEXT_SETXATTR(handle, path, name, value,
1771                                              size, flags);
1772         }
1773
1774         status = alloc_get_client_path(handle, talloc_tos(),
1775                                        path, &client_path);
1776         if (status != 0) {
1777                 goto err;
1778         }
1779
1780         status = SMB_VFS_NEXT_SETXATTR(handle, client_path, name, value,
1781                                        size, flags);
1782
1783 err:
1784         TALLOC_FREE(client_path);
1785         return status;
1786 }
1787
1788 static bool um_is_offline(struct vfs_handle_struct *handle,
1789                           const struct smb_filename *fname,
1790                           SMB_STRUCT_STAT *sbuf)
1791 {
1792         bool ret;
1793         struct smb_filename *client_fname = NULL;
1794         int status;
1795
1796         DEBUG(10, ("Entering um_is_offline\n"));
1797
1798         if (!is_in_media_files(fname->base_name)) {
1799                 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1800         }
1801
1802         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1803                                             fname, &client_fname);
1804         if (status != 0) {
1805                 ret = false;
1806                 goto err;
1807         }
1808
1809         ret = SMB_VFS_NEXT_IS_OFFLINE(handle, client_fname, sbuf);
1810
1811 err:
1812         TALLOC_FREE(client_fname);
1813         return ret;
1814 }
1815
1816 static int um_set_offline(struct vfs_handle_struct *handle,
1817                           const struct smb_filename *fname)
1818 {
1819         int status;
1820         struct smb_filename *client_fname = NULL;
1821
1822         DEBUG(10, ("Entering um_set_offline\n"));
1823
1824         if (!is_in_media_files(fname->base_name)) {
1825                 return SMB_VFS_NEXT_SET_OFFLINE(handle, fname);
1826         }
1827
1828         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1829                                             fname, &client_fname);
1830         if (status != 0) {
1831                 goto err;
1832         }
1833
1834         status = SMB_VFS_NEXT_SET_OFFLINE(handle, client_fname);
1835
1836 err:
1837         TALLOC_FREE(client_fname);
1838         return status;
1839 }
1840
1841 static int um_connect(vfs_handle_struct *handle,
1842                          const char *service,
1843                          const char *user)
1844 {
1845         int rc;
1846         struct um_config_data *config;
1847         int enumval;
1848
1849         rc = SMB_VFS_NEXT_CONNECT(handle, service, user);
1850         if (rc != 0) {
1851                 return rc;
1852         }
1853
1854         config = talloc_zero(handle->conn, struct um_config_data);
1855         if (!config) {
1856                 DEBUG(1, ("talloc_zero() failed\n"));
1857                 errno = ENOMEM;
1858                 return -1;
1859         }
1860
1861         enumval = lp_parm_enum(SNUM(handle->conn), UM_PARAM_TYPE_NAME,
1862                                "clientid", um_clientid, UM_CLIENTID_NAME);
1863         if (enumval == -1) {
1864                 DEBUG(1, ("value for %s: type unknown\n",
1865                           UM_PARAM_TYPE_NAME));
1866                 return -1;
1867         }
1868         config->clientid = (enum um_clientid)enumval;
1869
1870         SMB_VFS_HANDLE_SET_DATA(handle, config,
1871                                 NULL, struct um_config_data,
1872                                 return -1);
1873
1874         return 0;
1875 }
1876
1877 /* VFS operations structure */
1878
1879 static struct vfs_fn_pointers vfs_um_fns = {
1880         .connect_fn = um_connect,
1881
1882         /* Disk operations */
1883
1884         .statvfs_fn = um_statvfs,
1885
1886         /* Directory operations */
1887
1888         .opendir_fn = um_opendir,
1889         .fdopendir_fn = um_fdopendir,
1890         .readdir_fn = um_readdir,
1891         .seekdir_fn = um_seekdir,
1892         .telldir_fn = um_telldir,
1893         .rewind_dir_fn = um_rewinddir,
1894         .mkdir_fn = um_mkdir,
1895         .rmdir_fn = um_rmdir,
1896         .closedir_fn = um_closedir,
1897         .init_search_op_fn = um_init_search_op,
1898
1899         /* File operations */
1900
1901         .open_fn = um_open,
1902         .create_file_fn = um_create_file,
1903         .rename_fn = um_rename,
1904         .stat_fn = um_stat,
1905         .lstat_fn = um_lstat,
1906         .fstat_fn = um_fstat,
1907         .unlink_fn = um_unlink,
1908         .chmod_fn = um_chmod,
1909         .chown_fn = um_chown,
1910         .lchown_fn = um_lchown,
1911         .chdir_fn = um_chdir,
1912         .ntimes_fn = um_ntimes,
1913         .symlink_fn = um_symlink,
1914         .readlink_fn = um_readlink,
1915         .link_fn = um_link,
1916         .mknod_fn = um_mknod,
1917         .realpath_fn = um_realpath,
1918         .chflags_fn = um_chflags,
1919         .streaminfo_fn = um_streaminfo,
1920
1921         /* NT ACL operations. */
1922
1923         .get_nt_acl_fn = um_get_nt_acl,
1924
1925         /* POSIX ACL operations. */
1926
1927         .chmod_acl_fn = um_chmod_acl,
1928
1929         .sys_acl_get_file_fn = um_sys_acl_get_file,
1930         .sys_acl_set_file_fn = um_sys_acl_set_file,
1931         .sys_acl_delete_def_file_fn = um_sys_acl_delete_def_file,
1932
1933         /* EA operations. */
1934         .getxattr_fn = um_getxattr,
1935         .listxattr_fn = um_listxattr,
1936         .removexattr_fn = um_removexattr,
1937         .setxattr_fn = um_setxattr,
1938
1939         /* aio operations */
1940
1941         /* offline operations */
1942         .is_offline_fn = um_is_offline,
1943         .set_offline_fn = um_set_offline
1944 };
1945
1946 NTSTATUS vfs_unityed_media_init(void);
1947 NTSTATUS vfs_unityed_media_init(void)
1948 {
1949         NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
1950                                         "unityed_media", &vfs_um_fns);
1951         if (!NT_STATUS_IS_OK(ret)) {
1952                 return ret;
1953         }
1954
1955         vfs_um_debug_level = debug_add_class("unityed_media");
1956
1957         if (vfs_um_debug_level == -1) {
1958                 vfs_um_debug_level = DBGC_VFS;
1959                 DEBUG(1, ("unityed_media_init: Couldn't register custom "
1960                           "debugging class.\n"));
1961         }
1962
1963         return ret;
1964 }