Line data Source code
1 : /*
2 : * $Id: media_harmony.c,v 1.1 2007/11/06 10:07:22 stuart_hc Exp $
3 : *
4 : * Samba VFS module supporting multiple AVID clients sharing media.
5 : *
6 : * Copyright (C) 2005 Philip de Nier <philipn@users.sourceforge.net>
7 : * Copyright (C) 2012 Andrew Klaassen <clawsoon@yahoo.com>
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 : /*
27 : * Media Harmony is a Samba VFS module that allows multiple AVID
28 : * clients to share media. Each client sees their own copy of the
29 : * AVID msmMMOB.mdb and msmFMID.pmr files and Creating directories.
30 : *
31 : * Add this module to the vfs objects option in your Samba share
32 : * configuration.
33 : * eg.
34 : *
35 : * [avid_win]
36 : * path = /video
37 : * vfs objects = media_harmony
38 : * ...
39 : *
40 : * It is recommended that you separate out Samba shares for Mac
41 : * and Windows clients, and add the following options to the shares
42 : * for Windows clients (NOTE: replace @ with *):
43 : *
44 : * veto files = /.DS_Store/._@/.Trash@/.Spotlight@/.hidden/.hotfiles@/.vol/
45 : * delete veto files = yes
46 : *
47 : * This prevents hidden files from Mac clients interfering with Windows
48 : * clients. If you find any more problem hidden files then add them to
49 : * the list.
50 : *
51 : *
52 : * Andrew Klaassen, 2012-03-14
53 : * To prevent Avid clients from interrupting each other (via Avid's habit
54 : * of launching a database refresh whenever it notices an mtime update
55 : * on media directories, i.e. whenever one editor adds new material to a
56 : * shared share), I've added code that causes stat information for anything
57 : * directly under "Avid MediaFile/MXF" to be taken from
58 : * dirname_clientaddr_clientuser if it exists. These files ~aren't~
59 : * hidden, unlike the client-suffixed database files.
60 : *
61 : * For example, stat information for
62 : * Avid MediaFiles/MXF/1
63 : * will come from
64 : * Avid MediaFiles/MXF/1_192.168.1.10_dave
65 : * for dave working on 192.168.1.10, but will come from
66 : * Avid MediaFile/MXF/1_192.168.1.11_susan
67 : * for susan working on 192.168.1.11. If those alternate
68 : * directories don't exist, the user will get the actual directory's stat
69 : * info. When an editor wants to force a database refresh, they update
70 : * the mtime on "their" file. This will cause Avid
71 : * on that client to see an updated mtime for "Avid MediaFiles/MXF/1",
72 : * which will trigger an Avid database refresh just for that editor.
73 : *
74 : *
75 : * Notes:
76 : * - This module is designed to work with AVID editing applications that
77 : * look in the Avid MediaFiles or OMFI MediaFiles directory for media.
78 : * It is not designed to work as expected in all circumstances for
79 : * general use. For example: it is possibly to open client specific
80 : * files such as msmMMOB.mdb_192.168.1.10_userx even though is doesn't
81 : * show up in a directory listing.
82 : *
83 : */
84 :
85 :
86 : #include "includes.h"
87 : #include "system/filesys.h"
88 : #include "smbd/smbd.h"
89 : #include "../smbd/globals.h"
90 : #include "auth.h"
91 : #include "../lib/tsocket/tsocket.h"
92 :
93 : #define MH_INFO_DEBUG 10
94 : #define MH_ERR_DEBUG 0
95 :
96 : static const char* MDB_FILENAME = "msmMMOB.mdb";
97 : static const size_t MDB_FILENAME_LEN = 11;
98 : static const char* PMR_FILENAME = "msmFMID.pmr";
99 : static const size_t PMR_FILENAME_LEN = 11;
100 : static const char* CREATING_DIRNAME = "Creating";
101 : static const size_t CREATING_DIRNAME_LEN = 8;
102 : static const char* AVID_MEDIAFILES_DIRNAME = "Avid MediaFiles";
103 : static const size_t AVID_MEDIAFILES_DIRNAME_LEN = 15;
104 : static const char* OMFI_MEDIAFILES_DIRNAME = "OMFI MediaFiles";
105 : static const size_t OMFI_MEDIAFILES_DIRNAME_LEN = 15;
106 : static const char* APPLE_DOUBLE_PREFIX = "._";
107 : static const size_t APPLE_DOUBLE_PREFIX_LEN = 2;
108 : static const char* AVID_MXF_DIRNAME = "Avid MediaFiles/MXF";
109 : static const size_t AVID_MXF_DIRNAME_LEN = 19;
110 :
111 : static int vfs_mh_debug_level = DBGC_VFS;
112 :
113 : /* supplements the directory list stream */
114 : typedef struct mh_dirinfo_struct
115 : {
116 : DIR* dirstream;
117 : char *dirpath;
118 : char *clientPath;
119 : bool isInMediaFiles;
120 : char *clientMDBFilename;
121 : char *clientPMRFilename;
122 : char *clientCreatingDirname;
123 : } mh_dirinfo_struct;
124 :
125 :
126 : /* Add "_<ip address>_<user name>" suffix to path or filename.
127 : *
128 : * Success: return 0
129 : * Failure: set errno, path NULL, return -1
130 : */
131 0 : static int alloc_append_client_suffix(vfs_handle_struct *handle,
132 : char **path)
133 : {
134 0 : int status = 0;
135 0 : char *raddr = NULL;
136 :
137 0 : DEBUG(MH_INFO_DEBUG, ("Entering with *path '%s'\n", *path));
138 :
139 0 : raddr = tsocket_address_inet_addr_string(
140 0 : handle->conn->sconn->remote_address, talloc_tos());
141 0 : if (raddr == NULL)
142 : {
143 0 : errno = ENOMEM;
144 0 : status = -1;
145 0 : goto err;
146 : }
147 :
148 : /* talloc_asprintf_append uses talloc_realloc, which
149 : * frees original 'path' memory so we don't have to.
150 : */
151 0 : *path = talloc_asprintf_append(*path, "_%s_%s",
152 : raddr,
153 0 : handle->conn->session_info->unix_info->sanitized_username);
154 0 : if (*path == NULL)
155 : {
156 0 : DEBUG(MH_ERR_DEBUG, ("alloc_append_client_suffix "
157 : "out of memory\n"));
158 0 : errno = ENOMEM;
159 0 : status = -1;
160 0 : goto err;
161 : }
162 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with *path '%s'\n", *path));
163 0 : err:
164 0 : TALLOC_FREE(raddr);
165 0 : return status;
166 : }
167 :
168 :
169 : /* Returns True if the file or directory begins with the appledouble
170 : * prefix.
171 : */
172 0 : static bool is_apple_double(const char* fname)
173 : {
174 0 : bool ret = False;
175 :
176 0 : DEBUG(MH_INFO_DEBUG, ("Entering with fname '%s'\n", fname));
177 :
178 0 : if (strncmp(APPLE_DOUBLE_PREFIX, fname, APPLE_DOUBLE_PREFIX_LEN)
179 : == 0)
180 : {
181 0 : ret = True;
182 : }
183 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n",
184 : ret == True ? "True" : "False"));
185 0 : return ret;
186 : }
187 :
188 0 : static bool starts_with_media_dir(const char* media_dirname,
189 : size_t media_dirname_len, const char* path)
190 : {
191 0 : bool ret = False;
192 : const char *path_start;
193 :
194 0 : DEBUG(MH_INFO_DEBUG, ("Entering with media_dirname '%s' "
195 : "path '%s'\n", media_dirname, path));
196 :
197 : /* Sometimes Samba gives us "./OMFI MediaFiles". */
198 0 : if (strncmp(path, "./", 2) == 0)
199 : {
200 0 : path_start = &path[2];
201 : }
202 : else {
203 0 : path_start = path;
204 : }
205 :
206 0 : if (strncmp(media_dirname, path_start, media_dirname_len) == 0
207 0 : &&
208 : (
209 0 : path_start[media_dirname_len] == '\0'
210 0 : ||
211 0 : path_start[media_dirname_len] == '/'
212 : )
213 : )
214 : {
215 0 : ret = True;
216 : }
217 :
218 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n",
219 : ret == True ? "True" : "False"));
220 0 : return ret;
221 : }
222 :
223 : /*
224 : * Returns True if the file or directory referenced by the path is below
225 : * the AVID_MEDIAFILES_DIRNAME or OMFI_MEDIAFILES_DIRNAME directory
226 : * The AVID_MEDIAFILES_DIRNAME and OMFI_MEDIAFILES_DIRNAME are assumed to
227 : * be in the root directory, which is generally a safe assumption
228 : * in the fixed-path world of Avid.
229 : */
230 0 : static bool is_in_media_files(const char* path)
231 : {
232 0 : bool ret = False;
233 :
234 0 : DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n", path));
235 :
236 0 : if (
237 0 : starts_with_media_dir(AVID_MEDIAFILES_DIRNAME,
238 : AVID_MEDIAFILES_DIRNAME_LEN, path)
239 0 : ||
240 0 : starts_with_media_dir(OMFI_MEDIAFILES_DIRNAME,
241 : OMFI_MEDIAFILES_DIRNAME_LEN, path)
242 : )
243 : {
244 0 : ret = True;
245 : }
246 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n",
247 : ret == True ? "True" : "False"));
248 0 : return ret;
249 : }
250 :
251 : /*
252 : * Returns depth of path under media directory. Deals with the
253 : * occasional ..../. and ..../.. paths that get passed to stat.
254 : *
255 : * Assumes is_in_media_files has already been called and has returned
256 : * true for the path; if it hasn't, this function will likely crash
257 : * and burn.
258 : *
259 : * Not foolproof; something like "Avid MediaFiles/MXF/../foo/1"
260 : * would fool it. Haven't seen paths like that getting to the
261 : * stat function yet, so ignoring that possibility for now.
262 : */
263 0 : static int depth_from_media_dir(const char* media_dirname,
264 : size_t media_dirname_len, const char* path)
265 : {
266 0 : int transition_count = 0;
267 : const char *path_start;
268 : const char *pathPtr;
269 :
270 0 : DEBUG(MH_INFO_DEBUG, ("Entering with media_dirname '%s' "
271 : "path '%s'\n", media_dirname, path));
272 :
273 : /* Sometimes Samba gives us "./OMFI MediaFiles". */
274 0 : if (strncmp(path, "./", 2) == 0)
275 : {
276 0 : path_start = &path[2];
277 : }
278 : else {
279 0 : path_start = path;
280 : }
281 :
282 0 : if (path_start[media_dirname_len] == '\0')
283 : {
284 0 : goto out;
285 : }
286 :
287 0 : pathPtr = &path_start[media_dirname_len + 1];
288 :
289 : while(1)
290 : {
291 0 : if (*pathPtr == '\0' || *pathPtr == '/')
292 : {
293 0 : if (
294 0 : *(pathPtr - 1) == '.'
295 0 : &&
296 0 : *(pathPtr - 2) == '.'
297 0 : &&
298 0 : *(pathPtr - 3) == '/'
299 : )
300 : {
301 0 : transition_count--;
302 : }
303 0 : else if (
304 0 : !
305 : (
306 0 : *(pathPtr - 1) == '/'
307 : ||
308 : (
309 0 : *(pathPtr - 1) == '.'
310 0 : &&
311 0 : *(pathPtr - 2) == '/'
312 : )
313 : )
314 : )
315 : {
316 0 : transition_count++;
317 : }
318 : }
319 0 : if (*pathPtr == '\0')
320 : {
321 0 : break;
322 : }
323 0 : pathPtr++;
324 : }
325 :
326 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with transition_count '%i'\n",
327 : transition_count));
328 0 : out:
329 0 : return transition_count;
330 : }
331 :
332 : /* Identifies MDB and PMR files at end of path. */
333 0 : static bool is_avid_database(
334 : char *path,
335 : size_t path_len,
336 : const char *avid_db_filename,
337 : const size_t avid_db_filename_len)
338 : {
339 0 : bool ret = False;
340 :
341 0 : DEBUG(MH_INFO_DEBUG, ("Entering with path '%s', "
342 : "avid_db_filename '%s', "
343 : "path_len '%i', "
344 : "avid_db_filename_len '%i'\n",
345 : path, avid_db_filename,
346 : (int)path_len, (int)avid_db_filename_len));
347 :
348 0 : if (
349 : path_len > avid_db_filename_len
350 0 : &&
351 0 : strcmp(&path[path_len - avid_db_filename_len],
352 : avid_db_filename) == 0
353 0 : &&
354 : (
355 0 : path[path_len - avid_db_filename_len - 1] == '/'
356 0 : ||
357 : (path_len > avid_db_filename_len
358 0 : + APPLE_DOUBLE_PREFIX_LEN
359 0 : &&
360 0 : path[path_len - avid_db_filename_len
361 0 : - APPLE_DOUBLE_PREFIX_LEN - 1] == '/'
362 0 : &&
363 0 : is_apple_double(&path[path_len
364 0 : - avid_db_filename_len
365 0 : - APPLE_DOUBLE_PREFIX_LEN]))
366 : )
367 : )
368 : {
369 0 : ret = True;
370 : }
371 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n",
372 : ret == True ? "True" : "False"));
373 0 : return ret;
374 : }
375 :
376 :
377 : /* Add client suffix to paths to MDB_FILENAME, PMR_FILENAME and
378 : * CREATING_SUBDIRNAME.
379 : *
380 : * Caller must free newPath.
381 : *
382 : * Success: return 0
383 : * Failure: set errno, newPath NULL, return -1
384 : */
385 0 : static int alloc_get_client_path(vfs_handle_struct *handle,
386 : TALLOC_CTX *ctx,
387 : const char *path,
388 : char **newPath)
389 : {
390 : /* replace /CREATING_DIRNAME/ or /._CREATING_DIRNAME/
391 : * directory in path - potentially in middle of path
392 : * - with suffixed name.
393 : */
394 0 : int status = 0;
395 : char* pathPtr;
396 : size_t intermPathLen;
397 :
398 0 : DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n", path));
399 :
400 0 : *newPath = talloc_strdup(ctx, path);
401 0 : if (*newPath == NULL)
402 : {
403 0 : DEBUG(MH_ERR_DEBUG, ("alloc_get_client_path ENOMEM #1\n"));
404 0 : errno = ENOMEM;
405 0 : status = -1;
406 0 : goto out;
407 : }
408 0 : DEBUG(MH_INFO_DEBUG, ("newPath #1 %s\n", *newPath));
409 0 : if (
410 0 : (pathPtr = strstr(path, CREATING_DIRNAME)) != NULL
411 0 : &&
412 : (
413 0 : *(pathPtr + CREATING_DIRNAME_LEN) == '\0'
414 0 : ||
415 0 : *(pathPtr + CREATING_DIRNAME_LEN) == '/'
416 : )
417 0 : &&
418 : (
419 0 : (pathPtr - path > 0
420 0 : &&
421 0 : *(pathPtr - 1) == '/')
422 0 : ||
423 0 : (pathPtr - path > APPLE_DOUBLE_PREFIX_LEN
424 0 : &&
425 0 : *(pathPtr - APPLE_DOUBLE_PREFIX_LEN - 1) == '/'
426 0 : &&
427 0 : is_apple_double(pathPtr - APPLE_DOUBLE_PREFIX_LEN))
428 : )
429 : )
430 : {
431 : /* Insert client suffix into path. */
432 0 : (*newPath)[pathPtr - path + CREATING_DIRNAME_LEN] = '\0';
433 0 : DEBUG(MH_INFO_DEBUG, ("newPath #2 %s\n", *newPath));
434 :
435 0 : if ((status = alloc_append_client_suffix(handle, newPath)))
436 : {
437 0 : goto out;
438 : }
439 :
440 0 : DEBUG(MH_INFO_DEBUG, ("newPath #3 %s\n", *newPath));
441 0 : *newPath = talloc_strdup_append(*newPath,
442 0 : pathPtr + CREATING_DIRNAME_LEN);
443 0 : if (*newPath == NULL)
444 : {
445 0 : DEBUG(MH_ERR_DEBUG, ("alloc_get_client_path "
446 : "ENOMEM #2\n"));
447 0 : errno = ENOMEM;
448 0 : status = -1;
449 0 : goto out;
450 : }
451 0 : DEBUG(MH_INFO_DEBUG, ("newPath #4 %s\n", *newPath));
452 : }
453 :
454 : /* replace /MDB_FILENAME or /PMR_FILENAME or /._MDB_FILENAME
455 : * or /._PMR_FILENAME at newPath end with suffixed name.
456 : */
457 0 : intermPathLen = strlen(*newPath);
458 0 : if (
459 0 : is_avid_database(*newPath, intermPathLen,
460 : MDB_FILENAME, MDB_FILENAME_LEN)
461 0 : ||
462 0 : is_avid_database(*newPath, intermPathLen,
463 : PMR_FILENAME, PMR_FILENAME_LEN)
464 : )
465 : {
466 0 : DEBUG(MH_INFO_DEBUG, ("newPath #5 %s\n", *newPath));
467 0 : if ((status = alloc_append_client_suffix(handle, newPath)))
468 : {
469 0 : goto out;
470 : }
471 0 : DEBUG(MH_INFO_DEBUG, ("newPath #6 %s\n", *newPath));
472 : }
473 0 : out:
474 : /* newPath must be freed in caller. */
475 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with *newPath '%s'\n", *newPath));
476 0 : return status;
477 : }
478 :
479 : /*
480 : * Success: return 0
481 : * Failure: set errno, return -1
482 : */
483 0 : static int alloc_get_client_smb_fname(struct vfs_handle_struct *handle,
484 : TALLOC_CTX *ctx,
485 : const struct smb_filename *smb_fname,
486 : struct smb_filename **clientFname)
487 : {
488 0 : int status = 0;
489 :
490 0 : DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n",
491 : smb_fname->base_name));
492 :
493 0 : *clientFname = cp_smb_filename(ctx, smb_fname);
494 0 : if ((*clientFname) == NULL) {
495 0 : DEBUG(MH_ERR_DEBUG, ("alloc_get_client_smb_fname "
496 : "NTERR\n"));
497 0 : errno = ENOMEM;
498 0 : status = -1;
499 0 : goto err;
500 : }
501 0 : if ((status = alloc_get_client_path(handle, ctx,
502 0 : smb_fname->base_name,
503 0 : &(*clientFname)->base_name)))
504 : {
505 0 : goto err;
506 : }
507 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with (*clientFname)->base_name "
508 : "'%s'\n", (*clientFname)->base_name));
509 0 : err:
510 0 : return status;
511 : }
512 :
513 :
514 : /*
515 : * Success: return 0
516 : * Failure: set errno, return -1
517 : */
518 0 : static int alloc_set_client_dirinfo_path(struct vfs_handle_struct *handle,
519 : TALLOC_CTX *ctx,
520 : char **path,
521 : const char *avid_db_filename)
522 : {
523 0 : int status = 0;
524 :
525 0 : DEBUG(MH_INFO_DEBUG, ("Entering with avid_db_filename '%s'\n",
526 : avid_db_filename));
527 :
528 0 : if ((*path = talloc_strdup(ctx, avid_db_filename)) == NULL)
529 : {
530 0 : DEBUG(MH_ERR_DEBUG, ("alloc_set_client_dirinfo_path "
531 : "ENOMEM\n"));
532 0 : errno = ENOMEM;
533 0 : status = -1;
534 0 : goto err;
535 : }
536 0 : if ((status = alloc_append_client_suffix(handle, path)))
537 : {
538 0 : goto err;
539 : }
540 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with *path '%s'\n", *path));
541 0 : err:
542 0 : return status;
543 : }
544 :
545 : /*
546 : * Replace mtime on clientFname with mtime from client-suffixed
547 : * equivalent, if it exists.
548 : *
549 : * Success: return 0
550 : * Failure: set errno, return -1
551 : */
552 0 : static int set_fake_mtime(vfs_handle_struct *handle,
553 : TALLOC_CTX *ctx,
554 : struct smb_filename **clientFname,
555 : int (*statFn)(const char *, SMB_STRUCT_STAT *, bool))
556 : {
557 0 : int status = 0;
558 : char *statPath;
559 : SMB_STRUCT_STAT fakeStat;
560 : int copy_len;
561 :
562 0 : DEBUG(MH_INFO_DEBUG, ("Entering with (*clientFname)->base_name "
563 : "'%s', (*clientFname)->st.st_ex_mtime %s",
564 : (*clientFname)->base_name,
565 : ctime(&((*clientFname)->st.st_ex_mtime.tv_sec))));
566 :
567 0 : if (
568 0 : depth_from_media_dir(AVID_MXF_DIRNAME,
569 : AVID_MXF_DIRNAME_LEN,
570 0 : (*clientFname)->base_name)
571 : != 1
572 0 : &&
573 0 : depth_from_media_dir(OMFI_MEDIAFILES_DIRNAME,
574 : OMFI_MEDIAFILES_DIRNAME_LEN,
575 0 : (*clientFname)->base_name)
576 : != 0
577 : )
578 : {
579 0 : goto out;
580 : }
581 :
582 0 : copy_len = strlen((*clientFname)->base_name);
583 :
584 : /* Hack to deal with occasional "Avid MediaFiles/MXF/1/." paths.
585 : * We know we're under a media dir, so paths are at least 2 chars
586 : * long.
587 : */
588 0 : if ((*clientFname)->base_name[copy_len - 1] == '.' &&
589 0 : (*clientFname)->base_name[copy_len - 2] == '/')
590 : {
591 0 : copy_len -= 2;
592 : }
593 :
594 0 : if (((statPath = talloc_strndup(ctx,
595 0 : (*clientFname)->base_name, copy_len)) == NULL))
596 : {
597 0 : errno = ENOMEM;
598 0 : status = -1;
599 0 : goto err;
600 : }
601 0 : if ((status = alloc_append_client_suffix(handle, &statPath)))
602 : {
603 0 : goto err;
604 : }
605 :
606 0 : DEBUG(MH_INFO_DEBUG, ("Fake stat'ing '%s'\n", statPath));
607 0 : if (statFn(statPath, &fakeStat,
608 0 : lp_fake_directory_create_times(SNUM(handle->conn))))
609 : {
610 : /* This can fail for legitimate reasons - i.e. the
611 : * fakeStat directory doesn't exist, which is okay
612 : * - so we don't set status. But if it does fail,
613 : * we need to skip over the mtime assignment.
614 : */
615 0 : goto err;
616 : }
617 :
618 0 : DEBUG(MH_INFO_DEBUG, ("Setting fake mtime from '%s'\n", statPath));
619 0 : (*clientFname)->st.st_ex_mtime = fakeStat.st_ex_mtime;
620 0 : err:
621 0 : TALLOC_FREE(statPath);
622 0 : out:
623 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with (*clientFname)->base_name "
624 : "'%s', (*clientFname)->st.st_ex_mtime %s",
625 : (*clientFname)->base_name,
626 : ctime(&((*clientFname)->st.st_ex_mtime.tv_sec))));
627 0 : return status;
628 : }
629 :
630 : /*
631 : * Success: return 0
632 : * Failure: set errno, return -1
633 : */
634 0 : static int mh_statvfs(struct vfs_handle_struct *handle,
635 : const struct smb_filename *smb_fname,
636 : struct vfs_statvfs_struct *statbuf)
637 : {
638 : int status;
639 0 : struct smb_filename *clientFname = NULL;
640 :
641 0 : DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n",
642 : smb_fname->base_name));
643 :
644 0 : if (!is_in_media_files(smb_fname->base_name))
645 : {
646 0 : status = SMB_VFS_NEXT_STATVFS(handle, smb_fname, statbuf);
647 0 : goto out;
648 : }
649 :
650 0 : status = alloc_get_client_smb_fname(handle,
651 : talloc_tos(),
652 : smb_fname,
653 : &clientFname);
654 0 : if (status != 0) {
655 0 : goto err;
656 : }
657 :
658 0 : status = SMB_VFS_NEXT_STATVFS(handle, clientFname, statbuf);
659 0 : err:
660 0 : TALLOC_FREE(clientFname);
661 0 : out:
662 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with path '%s'\n",
663 : smb_fname->base_name));
664 0 : return status;
665 : }
666 :
667 0 : static int alloc_set_client_dirinfo(vfs_handle_struct *handle,
668 : const char *fname,
669 : struct mh_dirinfo_struct **dirInfo)
670 : {
671 0 : int status = 0;
672 : char *clientPath;
673 : TALLOC_CTX *ctx;
674 :
675 0 : DEBUG(MH_INFO_DEBUG, ("Entering with fname '%s'\n", fname));
676 :
677 0 : *dirInfo = talloc(NULL, struct mh_dirinfo_struct);
678 0 : if (*dirInfo == NULL)
679 : {
680 0 : goto err;
681 : }
682 :
683 0 : (*dirInfo)->dirpath = talloc_strdup(*dirInfo, fname);
684 0 : if ((*dirInfo)->dirpath == NULL)
685 : {
686 0 : goto err;
687 : }
688 :
689 0 : if (!is_in_media_files(fname))
690 : {
691 0 : (*dirInfo)->clientPath = NULL;
692 0 : (*dirInfo)->clientMDBFilename = NULL;
693 0 : (*dirInfo)->clientPMRFilename = NULL;
694 0 : (*dirInfo)->clientCreatingDirname = NULL;
695 0 : (*dirInfo)->isInMediaFiles = False;
696 0 : goto out;
697 : }
698 :
699 0 : (*dirInfo)->isInMediaFiles = True;
700 :
701 0 : if (alloc_set_client_dirinfo_path(handle,
702 : *dirInfo,
703 0 : &((*dirInfo)->clientMDBFilename),
704 : MDB_FILENAME))
705 : {
706 0 : goto err;
707 : }
708 :
709 0 : if (alloc_set_client_dirinfo_path(handle,
710 : *dirInfo,
711 0 : &((*dirInfo)->clientPMRFilename),
712 : PMR_FILENAME))
713 : {
714 0 : goto err;
715 : }
716 :
717 0 : if (alloc_set_client_dirinfo_path(handle,
718 : *dirInfo,
719 0 : &((*dirInfo)->clientCreatingDirname),
720 : CREATING_DIRNAME))
721 : {
722 0 : goto err;
723 : }
724 :
725 0 : clientPath = NULL;
726 0 : ctx = talloc_tos();
727 :
728 0 : if (alloc_get_client_path(handle, ctx,
729 : fname,
730 : &clientPath))
731 : {
732 0 : goto err;
733 : }
734 :
735 0 : (*dirInfo)->clientPath = talloc_strdup(*dirInfo, clientPath);
736 0 : if ((*dirInfo)->clientPath == NULL)
737 : {
738 0 : goto err;
739 : }
740 :
741 0 : TALLOC_FREE(clientPath);
742 :
743 0 : out:
744 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with (*dirInfo)->dirpath '%s', "
745 : "(*dirInfo)->clientPath '%s'\n",
746 : (*dirInfo)->dirpath,
747 : (*dirInfo)->clientPath));
748 0 : return status;
749 :
750 0 : err:
751 0 : DEBUG(MH_ERR_DEBUG, ("Failing with fname '%s'\n", fname));
752 0 : TALLOC_FREE(*dirInfo);
753 0 : status = -1;
754 0 : errno = ENOMEM;
755 0 : return status;
756 : }
757 :
758 0 : static DIR *mh_fdopendir(vfs_handle_struct *handle,
759 : files_struct *fsp,
760 : const char *mask,
761 : uint32_t attr)
762 : {
763 0 : struct mh_dirinfo_struct *dirInfo = NULL;
764 : DIR *dirstream;
765 :
766 0 : DEBUG(MH_INFO_DEBUG, ("Entering with fsp->fsp_name->base_name '%s'\n",
767 : fsp->fsp_name->base_name));
768 :
769 0 : dirstream = SMB_VFS_NEXT_FDOPENDIR(handle, fsp, mask, attr);
770 0 : if (!dirstream)
771 : {
772 0 : goto err;
773 : }
774 :
775 0 : if (alloc_set_client_dirinfo(handle, fsp->fsp_name->base_name,
776 : &dirInfo))
777 : {
778 0 : goto err;
779 : }
780 :
781 0 : dirInfo->dirstream = dirstream;
782 :
783 0 : if (! dirInfo->isInMediaFiles) {
784 0 : goto out;
785 : }
786 :
787 0 : if (set_fake_mtime(handle, fsp, &(fsp->fsp_name), sys_stat))
788 : {
789 0 : goto err;
790 : }
791 :
792 0 : out:
793 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with dirInfo->dirpath '%s', "
794 : "dirInfo->clientPath '%s', "
795 : "fsp->fsp_name->st.st_ex_mtime %s",
796 : dirInfo->dirpath,
797 : dirInfo->clientPath,
798 : ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec))));
799 : /* Success is freed in closedir. */
800 0 : return (DIR *) dirInfo;
801 0 : err:
802 : /* Failure is freed here. */
803 0 : DEBUG(MH_ERR_DEBUG, ("Failing with fsp->fsp_name->base_name '%s'\n",
804 : fsp->fsp_name->base_name));
805 0 : TALLOC_FREE(dirInfo);
806 0 : return NULL;
807 : }
808 :
809 : /*
810 : * skip MDB_FILENAME and PMR_FILENAME filenames and CREATING_DIRNAME
811 : * directory, skip other client's suffixed MDB_FILENAME and PMR_FILENAME
812 : * filenames and CREATING_DIRNAME directory, replace this client's
813 : * suffixed MDB_FILENAME and PMR_FILENAME filenames and CREATING_DIRNAME
814 : * directory with non suffixed.
815 : *
816 : * Success: return dirent
817 : * End of data: return NULL
818 : * Failure: set errno, return NULL
819 : */
820 : static struct dirent *
821 0 : mh_readdir(vfs_handle_struct *handle, struct files_struct *dirfsp, DIR *dirp)
822 : {
823 0 : mh_dirinfo_struct* dirInfo = (mh_dirinfo_struct*)dirp;
824 0 : struct dirent *d = NULL;
825 : int skip;
826 :
827 0 : DEBUG(MH_INFO_DEBUG, ("Entering mh_readdir\n"));
828 :
829 0 : DEBUG(MH_INFO_DEBUG, ("dirInfo->dirpath '%s', "
830 : "dirInfo->clientPath '%s', "
831 : "dirInfo->isInMediaFiles '%s', "
832 : "dirInfo->clientMDBFilename '%s', "
833 : "dirInfo->clientPMRFilename '%s', "
834 : "dirInfo->clientCreatingDirname '%s'\n",
835 : dirInfo->dirpath,
836 : dirInfo->clientPath,
837 : dirInfo->isInMediaFiles ? "True" : "False",
838 : dirInfo->clientMDBFilename,
839 : dirInfo->clientPMRFilename,
840 : dirInfo->clientCreatingDirname));
841 :
842 0 : if (! dirInfo->isInMediaFiles)
843 : {
844 0 : d = SMB_VFS_NEXT_READDIR(handle, dirfsp, dirInfo->dirstream);
845 0 : goto out;
846 : }
847 :
848 : do
849 : {
850 : const char* dname;
851 : bool isAppleDouble;
852 :
853 0 : skip = False;
854 0 : d = SMB_VFS_NEXT_READDIR(handle, dirfsp, dirInfo->dirstream);
855 :
856 0 : if (d == NULL)
857 : {
858 0 : break;
859 : }
860 :
861 : /* ignore apple double prefix for logic below */
862 0 : if (is_apple_double(d->d_name))
863 : {
864 0 : dname = &d->d_name[APPLE_DOUBLE_PREFIX_LEN];
865 0 : isAppleDouble = True;
866 : }
867 : else
868 : {
869 0 : dname = d->d_name;
870 0 : isAppleDouble = False;
871 : }
872 :
873 : /* skip Avid-special files with no client suffix */
874 0 : if (
875 0 : strcmp(dname, MDB_FILENAME) == 0
876 0 : ||
877 0 : strcmp(dname, PMR_FILENAME) == 0
878 0 : ||
879 0 : strcmp(dname, CREATING_DIRNAME) == 0
880 : )
881 : {
882 0 : skip = True;
883 : }
884 : /* chop client suffix off this client's suffixed files */
885 0 : else if (strcmp(dname, dirInfo->clientMDBFilename) == 0)
886 : {
887 0 : if (isAppleDouble)
888 : {
889 : d->d_name[MDB_FILENAME_LEN
890 0 : + APPLE_DOUBLE_PREFIX_LEN] = '\0';
891 : }
892 : else
893 : {
894 0 : d->d_name[MDB_FILENAME_LEN] = '\0';
895 : }
896 : }
897 0 : else if (strcmp(dname, dirInfo->clientPMRFilename) == 0)
898 : {
899 0 : if (isAppleDouble)
900 : {
901 : d->d_name[PMR_FILENAME_LEN
902 0 : + APPLE_DOUBLE_PREFIX_LEN] = '\0';
903 : }
904 : else
905 : {
906 0 : d->d_name[PMR_FILENAME_LEN] = '\0';
907 : }
908 : }
909 0 : else if (strcmp(dname, dirInfo->clientCreatingDirname)
910 : == 0)
911 : {
912 0 : if (isAppleDouble)
913 : {
914 : d->d_name[CREATING_DIRNAME_LEN
915 0 : + APPLE_DOUBLE_PREFIX_LEN] = '\0';
916 : }
917 : else
918 : {
919 0 : d->d_name[CREATING_DIRNAME_LEN] = '\0';
920 : }
921 : }
922 : /*
923 : * Anything that starts as an Avid-special file
924 : * that's made it this far should be skipped. This
925 : * is different from the original behaviour, which
926 : * only skipped other client's suffixed files.
927 : */
928 0 : else if (
929 0 : strncmp(MDB_FILENAME, dname,
930 : MDB_FILENAME_LEN) == 0
931 0 : ||
932 0 : strncmp(PMR_FILENAME, dname,
933 : PMR_FILENAME_LEN) == 0
934 0 : ||
935 0 : strncmp(CREATING_DIRNAME, dname,
936 : CREATING_DIRNAME_LEN) == 0
937 : )
938 : {
939 0 : skip = True;
940 : }
941 : }
942 0 : while (skip);
943 :
944 0 : out:
945 0 : DEBUG(MH_INFO_DEBUG, ("Leaving mh_readdir\n"));
946 0 : return d;
947 : }
948 :
949 : /*
950 : * Success: no success result defined.
951 : * Failure: no failure result defined.
952 : */
953 0 : static void mh_rewinddir(vfs_handle_struct *handle,
954 : DIR *dirp)
955 : {
956 0 : DEBUG(MH_INFO_DEBUG, ("Entering and leaving mh_rewinddir\n"));
957 0 : SMB_VFS_NEXT_REWINDDIR(handle,
958 : ((mh_dirinfo_struct*)dirp)->dirstream);
959 0 : }
960 :
961 : /*
962 : * Success: return 0
963 : * Failure: set errno, return -1
964 : */
965 0 : static int mh_mkdirat(vfs_handle_struct *handle,
966 : struct files_struct *dirfsp,
967 : const struct smb_filename *smb_fname,
968 : mode_t mode)
969 : {
970 : int status;
971 0 : struct smb_filename *clientFname = NULL;
972 0 : const char *path = smb_fname->base_name;
973 0 : struct smb_filename *full_fname = NULL;
974 :
975 0 : DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n", path));
976 :
977 0 : if (!is_in_media_files(path)) {
978 0 : status = SMB_VFS_NEXT_MKDIRAT(handle,
979 : dirfsp,
980 : smb_fname,
981 : mode);
982 0 : goto out;
983 : }
984 :
985 0 : full_fname = full_path_from_dirfsp_atname(talloc_tos(),
986 : dirfsp,
987 : smb_fname);
988 0 : if (full_fname == NULL) {
989 0 : return -1;
990 : }
991 :
992 0 : status = alloc_get_client_smb_fname(handle,
993 : talloc_tos(),
994 : full_fname,
995 : &clientFname);
996 0 : if (status != 0) {
997 0 : goto err;
998 : }
999 :
1000 0 : status = SMB_VFS_NEXT_MKDIRAT(handle,
1001 : handle->conn->cwd_fsp,
1002 : clientFname,
1003 : mode);
1004 0 : err:
1005 0 : TALLOC_FREE(full_fname);
1006 0 : TALLOC_FREE(clientFname);
1007 0 : out:
1008 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with path '%s'\n", path));
1009 0 : return status;
1010 : }
1011 :
1012 : /*
1013 : * Success: return 0
1014 : * Failure: set errno, return -1
1015 : */
1016 0 : static int mh_closedir(vfs_handle_struct *handle,
1017 : DIR *dirp)
1018 : {
1019 0 : DIR *realdirp = ((mh_dirinfo_struct*)dirp)->dirstream;
1020 :
1021 0 : DEBUG(MH_INFO_DEBUG, ("Entering mh_closedir\n"));
1022 : // Will this talloc_free destroy realdirp?
1023 0 : TALLOC_FREE(dirp);
1024 :
1025 0 : DEBUG(MH_INFO_DEBUG, ("Leaving mh_closedir\n"));
1026 0 : return SMB_VFS_NEXT_CLOSEDIR(handle, realdirp);
1027 : }
1028 :
1029 : /*
1030 : * Success: return non-negative file descriptor
1031 : * Failure: set errno, return -1
1032 : */
1033 0 : static int mh_openat(struct vfs_handle_struct *handle,
1034 : const struct files_struct *dirfsp,
1035 : const struct smb_filename *smb_fname,
1036 : files_struct *fsp,
1037 : const struct vfs_open_how *how)
1038 : {
1039 : int ret;
1040 : struct smb_filename *clientFname;
1041 : TALLOC_CTX *ctx;
1042 :
1043 0 : DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n",
1044 : smb_fname->base_name));
1045 :
1046 0 : if (!is_in_media_files(smb_fname->base_name)) {
1047 0 : ret = SMB_VFS_NEXT_OPENAT(handle,
1048 : dirfsp,
1049 : smb_fname,
1050 : fsp,
1051 : how);
1052 0 : goto out;
1053 : }
1054 :
1055 0 : clientFname = NULL;
1056 0 : ctx = talloc_tos();
1057 :
1058 0 : if (alloc_get_client_smb_fname(handle, ctx, smb_fname, &clientFname)) {
1059 0 : ret = -1;
1060 0 : goto err;
1061 : }
1062 :
1063 : /*
1064 : * What about fsp->fsp_name? We also have to get correct stat info into
1065 : * fsp and smb_fname for DB files, don't we?
1066 : */
1067 :
1068 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->base_name '%s' "
1069 : "smb_fname->st.st_ex_mtime %s"
1070 : " fsp->fsp_name->st.st_ex_mtime %s",
1071 : smb_fname->base_name,
1072 : ctime(&(smb_fname->st.st_ex_mtime.tv_sec)),
1073 : ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec))));
1074 :
1075 0 : ret = SMB_VFS_NEXT_OPENAT(handle, dirfsp, clientFname, fsp, how);
1076 0 : err:
1077 0 : TALLOC_FREE(clientFname);
1078 0 : out:
1079 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->base_name '%s'\n",
1080 : smb_fname->base_name));
1081 0 : return ret;
1082 : }
1083 :
1084 : /*
1085 : * Success: return non-negative file descriptor
1086 : * Failure: set errno, return -1
1087 : */
1088 0 : static NTSTATUS mh_create_file(vfs_handle_struct *handle,
1089 : struct smb_request *req,
1090 : struct files_struct *dirfsp,
1091 : struct smb_filename *smb_fname,
1092 : uint32_t access_mask,
1093 : uint32_t share_access,
1094 : uint32_t create_disposition,
1095 : uint32_t create_options,
1096 : uint32_t file_attributes,
1097 : uint32_t oplock_request,
1098 : const struct smb2_lease *lease,
1099 : uint64_t allocation_size,
1100 : uint32_t private_flags,
1101 : struct security_descriptor *sd,
1102 : struct ea_list *ea_list,
1103 : files_struct **result_fsp,
1104 : int *pinfo,
1105 : const struct smb2_create_blobs *in_context_blobs,
1106 : struct smb2_create_blobs *out_context_blobs)
1107 : {
1108 : NTSTATUS status;
1109 : struct smb_filename *clientFname;
1110 : TALLOC_CTX *ctx;
1111 :
1112 :
1113 0 : DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n",
1114 : smb_fname->base_name));
1115 0 : if (!is_in_media_files(smb_fname->base_name))
1116 : {
1117 0 : status = SMB_VFS_NEXT_CREATE_FILE(
1118 : handle,
1119 : req,
1120 : dirfsp,
1121 : smb_fname,
1122 : access_mask,
1123 : share_access,
1124 : create_disposition,
1125 : create_options,
1126 : file_attributes,
1127 : oplock_request,
1128 : lease,
1129 : allocation_size,
1130 : private_flags,
1131 : sd,
1132 : ea_list,
1133 : result_fsp,
1134 : pinfo,
1135 : in_context_blobs,
1136 : out_context_blobs);
1137 0 : goto out;
1138 : }
1139 :
1140 0 : clientFname = NULL;
1141 0 : ctx = talloc_tos();
1142 :
1143 0 : if (alloc_get_client_smb_fname(handle, ctx,
1144 : smb_fname,
1145 : &clientFname))
1146 : {
1147 0 : status = map_nt_error_from_unix(errno);
1148 0 : goto err;
1149 : }
1150 :
1151 : /* This only creates files, so we don't have to worry about
1152 : * our fake directory stat'ing here.
1153 : */
1154 : // But we still need to route stat calls for DB files
1155 : // properly, right?
1156 0 : status = SMB_VFS_NEXT_CREATE_FILE(
1157 : handle,
1158 : req,
1159 : dirfsp,
1160 : clientFname,
1161 : access_mask,
1162 : share_access,
1163 : create_disposition,
1164 : create_options,
1165 : file_attributes,
1166 : oplock_request,
1167 : lease,
1168 : allocation_size,
1169 : private_flags,
1170 : sd,
1171 : ea_list,
1172 : result_fsp,
1173 : pinfo,
1174 : in_context_blobs,
1175 : out_context_blobs);
1176 0 : err:
1177 0 : TALLOC_FREE(clientFname);
1178 0 : out:
1179 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->base_name '%s'"
1180 : "smb_fname->st.st_ex_mtime %s"
1181 : " fsp->fsp_name->st.st_ex_mtime %s",
1182 : smb_fname->base_name,
1183 : ctime(&(smb_fname->st.st_ex_mtime.tv_sec)),
1184 : (*result_fsp) && VALID_STAT((*result_fsp)->fsp_name->st) ?
1185 : ctime(&((*result_fsp)->fsp_name->st.st_ex_mtime.tv_sec)) :
1186 : "No fsp time\n"));
1187 0 : return status;
1188 : }
1189 :
1190 : /*
1191 : * Success: return 0
1192 : * Failure: set errno, return -1
1193 : */
1194 0 : static int mh_renameat(vfs_handle_struct *handle,
1195 : files_struct *srcfsp,
1196 : const struct smb_filename *smb_fname_src,
1197 : files_struct *dstfsp,
1198 : const struct smb_filename *smb_fname_dst)
1199 : {
1200 0 : int status = -1;
1201 0 : struct smb_filename *full_fname_src = NULL;
1202 0 : struct smb_filename *full_fname_dst = NULL;
1203 0 : struct smb_filename *srcClientFname = NULL;
1204 0 : struct smb_filename *dstClientFname = NULL;
1205 :
1206 0 : DEBUG(MH_INFO_DEBUG, ("Entering with "
1207 : "smb_fname_src->base_name '%s', "
1208 : "smb_fname_dst->base_name '%s'\n",
1209 : smb_fname_src->base_name,
1210 : smb_fname_dst->base_name));
1211 :
1212 0 : if (!is_in_media_files(smb_fname_src->base_name)
1213 0 : &&
1214 0 : !is_in_media_files(smb_fname_dst->base_name))
1215 : {
1216 0 : status = SMB_VFS_NEXT_RENAMEAT(handle,
1217 : srcfsp,
1218 : smb_fname_src,
1219 : dstfsp,
1220 : smb_fname_dst);
1221 0 : goto out;
1222 : }
1223 :
1224 0 : full_fname_src = full_path_from_dirfsp_atname(talloc_tos(),
1225 : srcfsp,
1226 : smb_fname_src);
1227 0 : if (full_fname_src == NULL) {
1228 0 : errno = ENOMEM;
1229 0 : goto out;
1230 : }
1231 0 : full_fname_dst = full_path_from_dirfsp_atname(talloc_tos(),
1232 : dstfsp,
1233 : smb_fname_dst);
1234 0 : if (full_fname_dst == NULL) {
1235 0 : errno = ENOMEM;
1236 0 : goto out;
1237 : }
1238 :
1239 0 : if ((status = alloc_get_client_smb_fname(handle,
1240 : talloc_tos(),
1241 : full_fname_src,
1242 : &srcClientFname)))
1243 : {
1244 0 : goto err;
1245 : }
1246 :
1247 0 : if ((status = alloc_get_client_smb_fname(handle,
1248 : talloc_tos(),
1249 : full_fname_dst,
1250 : &dstClientFname)))
1251 : {
1252 0 : goto err;
1253 : }
1254 :
1255 0 : status = SMB_VFS_NEXT_RENAMEAT(handle,
1256 : srcfsp->conn->cwd_fsp,
1257 : srcClientFname,
1258 : dstfsp->conn->cwd_fsp,
1259 : dstClientFname);
1260 0 : err:
1261 0 : TALLOC_FREE(full_fname_src);
1262 0 : TALLOC_FREE(full_fname_dst);
1263 0 : TALLOC_FREE(dstClientFname);
1264 0 : TALLOC_FREE(srcClientFname);
1265 0 : out:
1266 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname_src->base_name '%s',"
1267 : " smb_fname_dst->base_name '%s'\n",
1268 : smb_fname_src->base_name,
1269 : smb_fname_dst->base_name));
1270 0 : return status;
1271 : }
1272 :
1273 : /*
1274 : * Success: return 0
1275 : * Failure: set errno, return -1
1276 : */
1277 0 : static int mh_stat(vfs_handle_struct *handle,
1278 : struct smb_filename *smb_fname)
1279 : {
1280 0 : int status = 0;
1281 : struct smb_filename *clientFname;
1282 : TALLOC_CTX *ctx;
1283 :
1284 :
1285 0 : DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n",
1286 : smb_fname->base_name));
1287 :
1288 0 : if (!is_in_media_files(smb_fname->base_name))
1289 : {
1290 0 : status = SMB_VFS_NEXT_STAT(handle, smb_fname);
1291 0 : goto out;
1292 : }
1293 :
1294 0 : clientFname = NULL;
1295 0 : ctx = talloc_tos();
1296 :
1297 0 : if ((status = alloc_get_client_smb_fname(handle, ctx,
1298 : smb_fname,
1299 : &clientFname)))
1300 : {
1301 0 : goto err;
1302 : }
1303 0 : DEBUG(MH_INFO_DEBUG, ("Stat'ing clientFname->base_name '%s'\n",
1304 : clientFname->base_name));
1305 0 : if ((status = SMB_VFS_NEXT_STAT(handle, clientFname)))
1306 : {
1307 0 : goto err;
1308 : }
1309 0 : if ((status = set_fake_mtime(handle, ctx, &clientFname, sys_stat)))
1310 : {
1311 0 : goto err;
1312 : }
1313 :
1314 : /* Unlike functions with const smb_filename, we have to
1315 : * modify smb_fname itself to pass our info back up.
1316 : */
1317 0 : DEBUG(MH_INFO_DEBUG, ("Setting smb_fname '%s' stat "
1318 : "from clientFname '%s'\n",
1319 : smb_fname->base_name,
1320 : clientFname->base_name));
1321 0 : smb_fname->st = clientFname->st;
1322 0 : err:
1323 0 : TALLOC_FREE(clientFname);
1324 0 : out:
1325 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->st.st_ex_mtime %s",
1326 : ctime(&(smb_fname->st.st_ex_mtime.tv_sec))));
1327 0 : return status;
1328 : }
1329 :
1330 : /*
1331 : * Success: return 0
1332 : * Failure: set errno, return -1
1333 : */
1334 0 : static int mh_lstat(vfs_handle_struct *handle,
1335 : struct smb_filename *smb_fname)
1336 : {
1337 0 : int status = 0;
1338 : struct smb_filename *clientFname;
1339 : TALLOC_CTX *ctx;
1340 :
1341 0 : DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n",
1342 : smb_fname->base_name));
1343 :
1344 0 : if (!is_in_media_files(smb_fname->base_name))
1345 : {
1346 0 : status = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
1347 0 : goto out;
1348 : }
1349 :
1350 0 : clientFname = NULL;
1351 0 : ctx = talloc_tos();
1352 :
1353 0 : if ((status = alloc_get_client_smb_fname(handle, ctx,
1354 : smb_fname,
1355 : &clientFname)))
1356 : {
1357 0 : goto err;
1358 : }
1359 0 : if ((status = SMB_VFS_NEXT_LSTAT(handle, clientFname)))
1360 : {
1361 0 : goto err;
1362 : }
1363 :
1364 0 : if ((status = set_fake_mtime(handle, ctx, &clientFname, sys_lstat)))
1365 : {
1366 0 : goto err;
1367 : }
1368 : /* Unlike functions with const smb_filename, we have to
1369 : * modify smb_fname itself to pass our info back up.
1370 : */
1371 0 : smb_fname->st = clientFname->st;
1372 0 : err:
1373 0 : TALLOC_FREE(clientFname);
1374 0 : out:
1375 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->st.st_ex_mtime %s",
1376 : ctime(&(smb_fname->st.st_ex_mtime.tv_sec))));
1377 0 : return status;
1378 : }
1379 :
1380 : /*
1381 : * Success: return 0
1382 : * Failure: set errno, return -1
1383 : */
1384 0 : static int mh_fstat(vfs_handle_struct *handle,
1385 : files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1386 : {
1387 0 : int status = 0;
1388 :
1389 0 : DEBUG(MH_INFO_DEBUG, ("Entering with fsp->fsp_name->base_name "
1390 : "'%s'\n", fsp_str_dbg(fsp)));
1391 :
1392 0 : if ((status = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf)))
1393 : {
1394 0 : goto out;
1395 : }
1396 :
1397 0 : if (fsp->fsp_name == NULL
1398 0 : || !is_in_media_files(fsp->fsp_name->base_name))
1399 : {
1400 0 : goto out;
1401 : }
1402 :
1403 0 : if ((status = mh_stat(handle, fsp->fsp_name)))
1404 : {
1405 0 : goto out;
1406 : }
1407 :
1408 0 : *sbuf = fsp->fsp_name->st;
1409 0 : out:
1410 0 : DEBUG(MH_INFO_DEBUG, ("Leaving with fsp->fsp_name->st.st_ex_mtime "
1411 : "%s",
1412 : fsp->fsp_name != NULL ?
1413 : ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec)) :
1414 : "0"));
1415 0 : return status;
1416 : }
1417 :
1418 : /*
1419 : * Success: return 0
1420 : * Failure: set errno, return -1
1421 : */
1422 0 : static int mh_unlinkat(vfs_handle_struct *handle,
1423 : struct files_struct *dirfsp,
1424 : const struct smb_filename *smb_fname,
1425 : int flags)
1426 : {
1427 : int status;
1428 0 : struct smb_filename *full_fname = NULL;
1429 : struct smb_filename *clientFname;
1430 : TALLOC_CTX *ctx;
1431 :
1432 0 : DEBUG(MH_INFO_DEBUG, ("Entering mh_unlinkat\n"));
1433 0 : if (!is_in_media_files(smb_fname->base_name)) {
1434 0 : status = SMB_VFS_NEXT_UNLINKAT(handle,
1435 : dirfsp,
1436 : smb_fname,
1437 : flags);
1438 0 : goto out;
1439 : }
1440 :
1441 0 : clientFname = NULL;
1442 0 : ctx = talloc_tos();
1443 :
1444 0 : full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1445 : dirfsp,
1446 : smb_fname);
1447 0 : if (full_fname == NULL) {
1448 0 : return -1;
1449 : }
1450 :
1451 0 : if ((status = alloc_get_client_smb_fname(handle, ctx,
1452 : full_fname,
1453 : &clientFname))) {
1454 0 : goto err;
1455 : }
1456 :
1457 0 : status = SMB_VFS_NEXT_UNLINKAT(handle,
1458 : dirfsp->conn->cwd_fsp,
1459 : clientFname,
1460 : flags);
1461 0 : err:
1462 0 : TALLOC_FREE(full_fname);
1463 0 : TALLOC_FREE(clientFname);
1464 0 : out:
1465 0 : return status;
1466 : }
1467 :
1468 : /*
1469 : * Success: return 0
1470 : * Failure: set errno, return -1
1471 : */
1472 0 : static int mh_lchown(vfs_handle_struct *handle,
1473 : const struct smb_filename *smb_fname,
1474 : uid_t uid,
1475 : gid_t gid)
1476 : {
1477 : int status;
1478 0 : struct smb_filename *clientFname = NULL;
1479 :
1480 0 : DEBUG(MH_INFO_DEBUG, ("Entering mh_lchown\n"));
1481 0 : if (!is_in_media_files(smb_fname->base_name))
1482 : {
1483 0 : status = SMB_VFS_NEXT_LCHOWN(handle, smb_fname, uid, gid);
1484 0 : goto out;
1485 : }
1486 :
1487 0 : status = alloc_get_client_smb_fname(handle,
1488 : talloc_tos(),
1489 : smb_fname,
1490 : &clientFname);
1491 0 : if (status != 0) {
1492 0 : goto err;
1493 : }
1494 :
1495 0 : status = SMB_VFS_NEXT_LCHOWN(handle, clientFname, uid, gid);
1496 0 : err:
1497 0 : TALLOC_FREE(clientFname);
1498 0 : out:
1499 0 : return status;
1500 : }
1501 :
1502 : /*
1503 : * Success: return 0
1504 : * Failure: set errno, return -1
1505 : */
1506 0 : static int mh_chdir(vfs_handle_struct *handle,
1507 : const struct smb_filename *smb_fname)
1508 : {
1509 : int status;
1510 0 : struct smb_filename *clientFname = NULL;
1511 :
1512 0 : DEBUG(MH_INFO_DEBUG, ("Entering mh_chdir\n"));
1513 0 : if (!is_in_media_files(smb_fname->base_name)) {
1514 0 : status = SMB_VFS_NEXT_CHDIR(handle, smb_fname);
1515 0 : goto out;
1516 : }
1517 :
1518 0 : status = alloc_get_client_smb_fname(handle,
1519 : talloc_tos(),
1520 : smb_fname,
1521 : &clientFname);
1522 0 : if (status != 0) {
1523 0 : goto err;
1524 : }
1525 :
1526 0 : status = SMB_VFS_NEXT_CHDIR(handle, clientFname);
1527 0 : err:
1528 0 : TALLOC_FREE(clientFname);
1529 0 : out:
1530 0 : return status;
1531 : }
1532 :
1533 : /*
1534 : * Success: return 0
1535 : * Failure: set errno, return -1
1536 : */
1537 :
1538 0 : static int mh_symlinkat(vfs_handle_struct *handle,
1539 : const struct smb_filename *link_contents,
1540 : struct files_struct *dirfsp,
1541 : const struct smb_filename *new_smb_fname)
1542 : {
1543 0 : int status = -1;
1544 0 : struct smb_filename *full_fname = NULL;
1545 0 : struct smb_filename *new_link_target = NULL;
1546 0 : struct smb_filename *newclientFname = NULL;
1547 :
1548 0 : DEBUG(MH_INFO_DEBUG, ("Entering mh_symlinkat\n"));
1549 :
1550 0 : full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1551 : dirfsp,
1552 : new_smb_fname);
1553 0 : if (full_fname == NULL) {
1554 0 : status = -1;
1555 0 : goto err;
1556 : }
1557 :
1558 0 : if (!is_in_media_files(link_contents->base_name) &&
1559 0 : !is_in_media_files(full_fname->base_name)) {
1560 0 : status = SMB_VFS_NEXT_SYMLINKAT(handle,
1561 : link_contents,
1562 : dirfsp,
1563 : new_smb_fname);
1564 0 : goto out;
1565 : }
1566 :
1567 0 : if ((status = alloc_get_client_smb_fname(handle, talloc_tos(),
1568 : link_contents,
1569 : &new_link_target))) {
1570 0 : goto err;
1571 : }
1572 0 : if ((status = alloc_get_client_smb_fname(handle, talloc_tos(),
1573 : full_fname,
1574 : &newclientFname))) {
1575 0 : goto err;
1576 : }
1577 :
1578 0 : status = SMB_VFS_NEXT_SYMLINKAT(handle,
1579 : new_link_target,
1580 : handle->conn->cwd_fsp,
1581 : newclientFname);
1582 0 : err:
1583 0 : TALLOC_FREE(new_link_target);
1584 0 : TALLOC_FREE(newclientFname);
1585 0 : out:
1586 0 : TALLOC_FREE(full_fname);
1587 0 : return status;
1588 : }
1589 :
1590 : /*
1591 : * Success: return byte count
1592 : * Failure: set errno, return -1
1593 : */
1594 0 : static int mh_readlinkat(vfs_handle_struct *handle,
1595 : const struct files_struct *dirfsp,
1596 : const struct smb_filename *smb_fname,
1597 : char *buf,
1598 : size_t bufsiz)
1599 : {
1600 : int status;
1601 0 : struct smb_filename *full_fname = NULL;
1602 0 : struct smb_filename *clientFname = NULL;
1603 :
1604 0 : DEBUG(MH_INFO_DEBUG, ("Entering mh_readlinkat\n"));
1605 0 : full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1606 : dirfsp,
1607 : smb_fname);
1608 0 : if (full_fname == NULL) {
1609 0 : status = -1;
1610 0 : goto err;
1611 : }
1612 :
1613 0 : if (!is_in_media_files(full_fname->base_name)) {
1614 0 : status = SMB_VFS_NEXT_READLINKAT(handle,
1615 : dirfsp,
1616 : smb_fname,
1617 : buf,
1618 : bufsiz);
1619 0 : goto out;
1620 : }
1621 :
1622 0 : if ((status = alloc_get_client_smb_fname(handle, talloc_tos(),
1623 : full_fname,
1624 : &clientFname))) {
1625 0 : goto err;
1626 : }
1627 :
1628 0 : status = SMB_VFS_NEXT_READLINKAT(handle,
1629 : handle->conn->cwd_fsp,
1630 : clientFname,
1631 : buf,
1632 : bufsiz);
1633 :
1634 0 : err:
1635 0 : TALLOC_FREE(clientFname);
1636 0 : out:
1637 0 : TALLOC_FREE(full_fname);
1638 0 : return status;
1639 : }
1640 :
1641 : /*
1642 : * Success: return 0
1643 : * Failure: set errno, return -1
1644 : */
1645 0 : static int mh_linkat(vfs_handle_struct *handle,
1646 : files_struct *srcfsp,
1647 : const struct smb_filename *old_smb_fname,
1648 : files_struct *dstfsp,
1649 : const struct smb_filename *new_smb_fname,
1650 : int flags)
1651 : {
1652 : int status;
1653 0 : struct smb_filename *old_full_fname = NULL;
1654 0 : struct smb_filename *oldclientFname = NULL;
1655 0 : struct smb_filename *new_full_fname = NULL;
1656 0 : struct smb_filename *newclientFname = NULL;
1657 :
1658 0 : DEBUG(MH_INFO_DEBUG, ("Entering mh_linkat\n"));
1659 :
1660 0 : old_full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1661 : srcfsp,
1662 : old_smb_fname);
1663 0 : if (old_full_fname == NULL) {
1664 0 : status = -1;
1665 0 : goto err;
1666 : }
1667 :
1668 0 : new_full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1669 : dstfsp,
1670 : new_smb_fname);
1671 0 : if (new_full_fname == NULL) {
1672 0 : status = -1;
1673 0 : goto err;
1674 : }
1675 :
1676 0 : if (!is_in_media_files(old_full_fname->base_name) &&
1677 0 : !is_in_media_files(new_full_fname->base_name)) {
1678 0 : TALLOC_FREE(old_full_fname);
1679 0 : TALLOC_FREE(new_full_fname);
1680 :
1681 0 : status = SMB_VFS_NEXT_LINKAT(handle,
1682 : srcfsp,
1683 : old_smb_fname,
1684 : dstfsp,
1685 : new_smb_fname,
1686 : flags);
1687 0 : goto out;
1688 : }
1689 :
1690 0 : if ((status = alloc_get_client_smb_fname(handle, talloc_tos(),
1691 : old_full_fname,
1692 : &oldclientFname))) {
1693 0 : goto err;
1694 : }
1695 0 : if ((status = alloc_get_client_smb_fname(handle, talloc_tos(),
1696 : new_full_fname,
1697 : &newclientFname))) {
1698 0 : goto err;
1699 : }
1700 :
1701 0 : status = SMB_VFS_NEXT_LINKAT(handle,
1702 : handle->conn->cwd_fsp,
1703 : oldclientFname,
1704 : handle->conn->cwd_fsp,
1705 : newclientFname,
1706 : flags);
1707 :
1708 0 : err:
1709 0 : TALLOC_FREE(old_full_fname);
1710 0 : TALLOC_FREE(new_full_fname);
1711 0 : TALLOC_FREE(newclientFname);
1712 0 : TALLOC_FREE(oldclientFname);
1713 0 : out:
1714 0 : return status;
1715 : }
1716 :
1717 : /*
1718 : * Success: return 0
1719 : * Failure: set errno, return -1
1720 : */
1721 0 : static int mh_mknodat(vfs_handle_struct *handle,
1722 : files_struct *dirfsp,
1723 : const struct smb_filename *smb_fname,
1724 : mode_t mode,
1725 : SMB_DEV_T dev)
1726 : {
1727 : int status;
1728 0 : struct smb_filename *full_fname = NULL;
1729 0 : struct smb_filename *clientFname = NULL;
1730 : TALLOC_CTX *ctx;
1731 :
1732 0 : DEBUG(MH_INFO_DEBUG, ("Entering mh_mknodat\n"));
1733 :
1734 0 : full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1735 : dirfsp,
1736 : smb_fname);
1737 0 : if (full_fname == NULL) {
1738 0 : status = -1;
1739 0 : goto err;
1740 : }
1741 :
1742 0 : if (!is_in_media_files(full_fname->base_name)) {
1743 0 : status = SMB_VFS_NEXT_MKNODAT(handle,
1744 : dirfsp,
1745 : smb_fname,
1746 : mode,
1747 : dev);
1748 0 : goto out;
1749 : }
1750 :
1751 0 : ctx = talloc_tos();
1752 :
1753 0 : if ((status = alloc_get_client_smb_fname(handle, ctx,
1754 : full_fname,
1755 : &clientFname))) {
1756 0 : goto err;
1757 : }
1758 :
1759 0 : status = SMB_VFS_NEXT_MKNODAT(handle,
1760 : handle->conn->cwd_fsp,
1761 : clientFname,
1762 : mode,
1763 : dev);
1764 :
1765 0 : err:
1766 0 : TALLOC_FREE(clientFname);
1767 0 : out:
1768 0 : TALLOC_FREE(full_fname);
1769 0 : return status;
1770 : }
1771 :
1772 : /*
1773 : * Success: return path pointer
1774 : * Failure: set errno, return NULL pointer
1775 : */
1776 0 : static struct smb_filename *mh_realpath(vfs_handle_struct *handle,
1777 : TALLOC_CTX *ctx,
1778 : const struct smb_filename *smb_fname)
1779 : {
1780 0 : struct smb_filename *result_fname = NULL;
1781 0 : struct smb_filename *clientFname = NULL;
1782 :
1783 0 : DEBUG(MH_INFO_DEBUG, ("Entering mh_realpath\n"));
1784 0 : if (!is_in_media_files(smb_fname->base_name)) {
1785 0 : return SMB_VFS_NEXT_REALPATH(handle, ctx, smb_fname);
1786 : }
1787 :
1788 0 : if (alloc_get_client_smb_fname(handle, ctx,
1789 : smb_fname,
1790 : &clientFname) != 0) {
1791 0 : goto err;
1792 : }
1793 :
1794 0 : result_fname = SMB_VFS_NEXT_REALPATH(handle, ctx, clientFname);
1795 0 : err:
1796 0 : TALLOC_FREE(clientFname);
1797 0 : return result_fname;
1798 : }
1799 :
1800 : /* Ignoring get_real_filename function because the default
1801 : * doesn't do anything.
1802 : */
1803 :
1804 : /*
1805 : * Success: return 0
1806 : * Failure: set errno, return -1
1807 : * In this case, "name" is an attr name.
1808 : */
1809 :
1810 : /* VFS operations structure */
1811 :
1812 : static struct vfs_fn_pointers vfs_mh_fns = {
1813 : /* Disk operations */
1814 :
1815 : .statvfs_fn = mh_statvfs,
1816 :
1817 : /* Directory operations */
1818 :
1819 : .fdopendir_fn = mh_fdopendir,
1820 : .readdir_fn = mh_readdir,
1821 : .rewind_dir_fn = mh_rewinddir,
1822 : .mkdirat_fn = mh_mkdirat,
1823 : .closedir_fn = mh_closedir,
1824 :
1825 : /* File operations */
1826 :
1827 : .openat_fn = mh_openat,
1828 : .create_file_fn = mh_create_file,
1829 : .renameat_fn = mh_renameat,
1830 : .stat_fn = mh_stat,
1831 : .lstat_fn = mh_lstat,
1832 : .fstat_fn = mh_fstat,
1833 : .unlinkat_fn = mh_unlinkat,
1834 : .lchown_fn = mh_lchown,
1835 : .chdir_fn = mh_chdir,
1836 : .symlinkat_fn = mh_symlinkat,
1837 : .readlinkat_fn = mh_readlinkat,
1838 : .linkat_fn = mh_linkat,
1839 : .mknodat_fn = mh_mknodat,
1840 : .realpath_fn = mh_realpath,
1841 :
1842 : /* EA operations. */
1843 : .getxattrat_send_fn = vfs_not_implemented_getxattrat_send,
1844 : .getxattrat_recv_fn = vfs_not_implemented_getxattrat_recv,
1845 :
1846 : /* aio operations */
1847 : };
1848 :
1849 : static_decl_vfs;
1850 27 : NTSTATUS vfs_media_harmony_init(TALLOC_CTX *ctx)
1851 : {
1852 27 : NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
1853 : "media_harmony", &vfs_mh_fns);
1854 27 : if (!NT_STATUS_IS_OK(ret))
1855 : {
1856 0 : goto out;
1857 : }
1858 :
1859 27 : vfs_mh_debug_level = debug_add_class("media_harmony");
1860 :
1861 27 : if (vfs_mh_debug_level == -1) {
1862 0 : vfs_mh_debug_level = DBGC_VFS;
1863 0 : DEBUG(1, ("media_harmony_init: Couldn't register custom "
1864 : "debugging class.\n"));
1865 : } else {
1866 27 : DEBUG(3, ("media_harmony_init: Debug class number of "
1867 : "'media_harmony': %d\n",
1868 : vfs_mh_debug_level));
1869 : }
1870 :
1871 27 : out:
1872 27 : return ret;
1873 : }
|
