Line data Source code
1 : /*
2 : * Recycle bin VFS module for Samba.
3 : *
4 : * Copyright (C) 2001, Brandon Stone, Amherst College, <bbstone@amherst.edu>.
5 : * Copyright (C) 2002, Jeremy Allison - modified to make a VFS module.
6 : * Copyright (C) 2002, Alexander Bokovoy - cascaded VFS adoption,
7 : * Copyright (C) 2002, Juergen Hasch - added some options.
8 : * Copyright (C) 2002, Simo Sorce
9 : * Copyright (C) 2002, Stefan (metze) Metzmacher
10 : *
11 : * This program is free software; you can redistribute it and/or modify
12 : * it under the terms of the GNU General Public License as published by
13 : * the Free Software Foundation; either version 3 of the License, or
14 : * (at your option) any later version.
15 : *
16 : * This program is distributed in the hope that it will be useful,
17 : * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 : * GNU General Public License for more details.
20 : *
21 : * You should have received a copy of the GNU General Public License
22 : * along with this program; if not, see <http://www.gnu.org/licenses/>.
23 : */
24 :
25 : #include "includes.h"
26 : #include "smbd/smbd.h"
27 : #include "system/filesys.h"
28 : #include "../librpc/gen_ndr/ndr_netlogon.h"
29 : #include "auth.h"
30 :
31 : #define ALLOC_CHECK(ptr, label) do { if ((ptr) == NULL) { DEBUG(0, ("recycle.bin: out of memory!\n")); errno = ENOMEM; goto label; } } while(0)
32 :
33 : static int vfs_recycle_debug_level = DBGC_VFS;
34 :
35 : #undef DBGC_CLASS
36 : #define DBGC_CLASS vfs_recycle_debug_level
37 :
38 0 : static const char *recycle_repository(vfs_handle_struct *handle)
39 : {
40 0 : const char *tmp_str = NULL;
41 :
42 0 : tmp_str = lp_parm_const_string(SNUM(handle->conn), "recycle", "repository",".recycle");
43 :
44 0 : DEBUG(10, ("recycle: repository = %s\n", tmp_str));
45 :
46 0 : return tmp_str;
47 : }
48 :
49 0 : static bool recycle_keep_dir_tree(vfs_handle_struct *handle)
50 : {
51 : bool ret;
52 :
53 0 : ret = lp_parm_bool(SNUM(handle->conn), "recycle", "keeptree", False);
54 :
55 0 : DEBUG(10, ("recycle_bin: keeptree = %s\n", ret?"True":"False"));
56 :
57 0 : return ret;
58 : }
59 :
60 0 : static bool recycle_versions(vfs_handle_struct *handle)
61 : {
62 : bool ret;
63 :
64 0 : ret = lp_parm_bool(SNUM(handle->conn), "recycle", "versions", False);
65 :
66 0 : DEBUG(10, ("recycle: versions = %s\n", ret?"True":"False"));
67 :
68 0 : return ret;
69 : }
70 :
71 0 : static bool recycle_touch(vfs_handle_struct *handle)
72 : {
73 : bool ret;
74 :
75 0 : ret = lp_parm_bool(SNUM(handle->conn), "recycle", "touch", False);
76 :
77 0 : DEBUG(10, ("recycle: touch = %s\n", ret?"True":"False"));
78 :
79 0 : return ret;
80 : }
81 :
82 0 : static bool recycle_touch_mtime(vfs_handle_struct *handle)
83 : {
84 : bool ret;
85 :
86 0 : ret = lp_parm_bool(SNUM(handle->conn), "recycle", "touch_mtime", False);
87 :
88 0 : DEBUG(10, ("recycle: touch_mtime = %s\n", ret?"True":"False"));
89 :
90 0 : return ret;
91 : }
92 :
93 0 : static const char **recycle_exclude(vfs_handle_struct *handle)
94 : {
95 : const char **tmp_lp;
96 :
97 0 : tmp_lp = lp_parm_string_list(SNUM(handle->conn), "recycle", "exclude", NULL);
98 :
99 0 : DEBUG(10, ("recycle: exclude = %s ...\n", tmp_lp?*tmp_lp:""));
100 :
101 0 : return tmp_lp;
102 : }
103 :
104 0 : static const char **recycle_exclude_dir(vfs_handle_struct *handle)
105 : {
106 : const char **tmp_lp;
107 :
108 0 : tmp_lp = lp_parm_string_list(SNUM(handle->conn), "recycle", "exclude_dir", NULL);
109 :
110 0 : DEBUG(10, ("recycle: exclude_dir = %s ...\n", tmp_lp?*tmp_lp:""));
111 :
112 0 : return tmp_lp;
113 : }
114 :
115 0 : static const char **recycle_noversions(vfs_handle_struct *handle)
116 : {
117 : const char **tmp_lp;
118 :
119 0 : tmp_lp = lp_parm_string_list(SNUM(handle->conn), "recycle", "noversions", NULL);
120 :
121 0 : DEBUG(10, ("recycle: noversions = %s\n", tmp_lp?*tmp_lp:""));
122 :
123 0 : return tmp_lp;
124 : }
125 :
126 0 : static off_t recycle_maxsize(vfs_handle_struct *handle)
127 : {
128 : off_t maxsize;
129 :
130 0 : maxsize = conv_str_size(lp_parm_const_string(SNUM(handle->conn),
131 : "recycle", "maxsize", NULL));
132 :
133 0 : DEBUG(10, ("recycle: maxsize = %lu\n", (long unsigned int)maxsize));
134 :
135 0 : return maxsize;
136 : }
137 :
138 0 : static off_t recycle_minsize(vfs_handle_struct *handle)
139 : {
140 : off_t minsize;
141 :
142 0 : minsize = conv_str_size(lp_parm_const_string(SNUM(handle->conn),
143 : "recycle", "minsize", NULL));
144 :
145 0 : DEBUG(10, ("recycle: minsize = %lu\n", (long unsigned int)minsize));
146 :
147 0 : return minsize;
148 : }
149 :
150 0 : static mode_t recycle_directory_mode(vfs_handle_struct *handle)
151 : {
152 : int dirmode;
153 : const char *buff;
154 :
155 0 : buff = lp_parm_const_string(SNUM(handle->conn), "recycle", "directory_mode", NULL);
156 :
157 0 : if (buff != NULL ) {
158 0 : sscanf(buff, "%o", &dirmode);
159 : } else {
160 0 : dirmode=S_IRUSR | S_IWUSR | S_IXUSR;
161 : }
162 :
163 0 : DEBUG(10, ("recycle: directory_mode = %o\n", dirmode));
164 0 : return (mode_t)dirmode;
165 : }
166 :
167 0 : static mode_t recycle_subdir_mode(vfs_handle_struct *handle)
168 : {
169 : int dirmode;
170 : const char *buff;
171 :
172 0 : buff = lp_parm_const_string(SNUM(handle->conn), "recycle", "subdir_mode", NULL);
173 :
174 0 : if (buff != NULL ) {
175 0 : sscanf(buff, "%o", &dirmode);
176 : } else {
177 0 : dirmode=recycle_directory_mode(handle);
178 : }
179 :
180 0 : DEBUG(10, ("recycle: subdir_mode = %o\n", dirmode));
181 0 : return (mode_t)dirmode;
182 : }
183 :
184 0 : static bool recycle_directory_exist(vfs_handle_struct *handle, const char *dname)
185 : {
186 0 : struct smb_filename smb_fname = {
187 : .base_name = discard_const_p(char, dname)
188 : };
189 :
190 0 : if (SMB_VFS_STAT(handle->conn, &smb_fname) == 0) {
191 0 : if (S_ISDIR(smb_fname.st.st_ex_mode)) {
192 0 : return True;
193 : }
194 : }
195 :
196 0 : return False;
197 : }
198 :
199 0 : static bool recycle_file_exist(vfs_handle_struct *handle,
200 : const struct smb_filename *smb_fname)
201 : {
202 0 : struct smb_filename *smb_fname_tmp = NULL;
203 0 : bool ret = false;
204 :
205 0 : smb_fname_tmp = cp_smb_filename(talloc_tos(), smb_fname);
206 0 : if (smb_fname_tmp == NULL) {
207 0 : return false;
208 : }
209 :
210 0 : if (SMB_VFS_STAT(handle->conn, smb_fname_tmp) == 0) {
211 0 : if (S_ISREG(smb_fname_tmp->st.st_ex_mode)) {
212 0 : ret = true;
213 : }
214 : }
215 :
216 0 : TALLOC_FREE(smb_fname_tmp);
217 0 : return ret;
218 : }
219 :
220 : /**
221 : * Return file size
222 : * @param conn connection
223 : * @param fname file name
224 : * @return size in bytes
225 : **/
226 0 : static off_t recycle_get_file_size(vfs_handle_struct *handle,
227 : const struct smb_filename *smb_fname)
228 : {
229 0 : struct smb_filename *smb_fname_tmp = NULL;
230 : off_t size;
231 :
232 0 : smb_fname_tmp = cp_smb_filename(talloc_tos(), smb_fname);
233 0 : if (smb_fname_tmp == NULL) {
234 0 : size = (off_t)0;
235 0 : goto out;
236 : }
237 :
238 0 : if (SMB_VFS_STAT(handle->conn, smb_fname_tmp) != 0) {
239 0 : DBG_DEBUG("stat for %s returned %s\n",
240 : smb_fname_str_dbg(smb_fname_tmp), strerror(errno));
241 0 : size = (off_t)0;
242 0 : goto out;
243 : }
244 :
245 0 : size = smb_fname_tmp->st.st_ex_size;
246 0 : out:
247 0 : TALLOC_FREE(smb_fname_tmp);
248 0 : return size;
249 : }
250 :
251 : /**
252 : * Create directory tree
253 : * @param conn connection
254 : * @param dname Directory tree to be created
255 : * @return Returns True for success
256 : **/
257 0 : static bool recycle_create_dir(vfs_handle_struct *handle, const char *dname)
258 : {
259 : size_t len;
260 : mode_t mode;
261 0 : char *new_dir = NULL;
262 0 : char *tmp_str = NULL;
263 : char *token;
264 : char *tok_str;
265 0 : bool ret = False;
266 : char *saveptr;
267 :
268 0 : mode = recycle_directory_mode(handle);
269 :
270 0 : tmp_str = SMB_STRDUP(dname);
271 0 : ALLOC_CHECK(tmp_str, done);
272 0 : tok_str = tmp_str;
273 :
274 0 : len = strlen(dname)+1;
275 0 : new_dir = (char *)SMB_MALLOC(len + 1);
276 0 : ALLOC_CHECK(new_dir, done);
277 0 : *new_dir = '\0';
278 0 : if (dname[0] == '/') {
279 : /* Absolute path. */
280 0 : if (strlcat(new_dir,"/",len+1) >= len+1) {
281 0 : goto done;
282 : }
283 : }
284 :
285 : /* Create directory tree if necessary */
286 0 : for(token = strtok_r(tok_str, "/", &saveptr); token;
287 0 : token = strtok_r(NULL, "/", &saveptr)) {
288 0 : if (strlcat(new_dir, token, len+1) >= len+1) {
289 0 : goto done;
290 : }
291 0 : if (recycle_directory_exist(handle, new_dir))
292 0 : DEBUG(10, ("recycle: dir %s already exists\n", new_dir));
293 : else {
294 0 : struct smb_filename *smb_fname = NULL;
295 : int retval;
296 :
297 0 : DEBUG(5, ("recycle: creating new dir %s\n", new_dir));
298 :
299 0 : smb_fname = synthetic_smb_fname(talloc_tos(),
300 : new_dir,
301 : NULL,
302 : NULL,
303 : 0,
304 : 0);
305 0 : if (smb_fname == NULL) {
306 0 : goto done;
307 : }
308 :
309 0 : retval = SMB_VFS_NEXT_MKDIRAT(handle,
310 : handle->conn->cwd_fsp,
311 : smb_fname,
312 : mode);
313 0 : if (retval != 0) {
314 0 : DBG_WARNING("recycle: mkdirat failed "
315 : "for %s with error: %s\n",
316 : new_dir,
317 : strerror(errno));
318 0 : TALLOC_FREE(smb_fname);
319 0 : ret = False;
320 0 : goto done;
321 : }
322 0 : TALLOC_FREE(smb_fname);
323 : }
324 0 : if (strlcat(new_dir, "/", len+1) >= len+1) {
325 0 : goto done;
326 : }
327 0 : mode = recycle_subdir_mode(handle);
328 : }
329 :
330 0 : ret = True;
331 0 : done:
332 0 : SAFE_FREE(tmp_str);
333 0 : SAFE_FREE(new_dir);
334 0 : return ret;
335 : }
336 :
337 : /**
338 : * Check if any of the components of "exclude_list" are contained in path.
339 : * Return True if found
340 : **/
341 :
342 0 : static bool matchdirparam(const char **dir_exclude_list, char *path)
343 : {
344 0 : char *startp = NULL, *endp = NULL;
345 :
346 0 : if (dir_exclude_list == NULL || dir_exclude_list[0] == NULL ||
347 0 : *dir_exclude_list[0] == '\0' || path == NULL || *path == '\0') {
348 0 : return False;
349 : }
350 :
351 : /*
352 : * Walk the components of path, looking for matches with the
353 : * exclude list on each component.
354 : */
355 :
356 0 : for (startp = path; startp; startp = endp) {
357 : int i;
358 :
359 0 : while (*startp == '/') {
360 0 : startp++;
361 : }
362 0 : endp = strchr(startp, '/');
363 0 : if (endp) {
364 0 : *endp = '\0';
365 : }
366 :
367 0 : for(i=0; dir_exclude_list[i] ; i++) {
368 0 : if(unix_wild_match(dir_exclude_list[i], startp)) {
369 : /* Repair path. */
370 0 : if (endp) {
371 0 : *endp = '/';
372 : }
373 0 : return True;
374 : }
375 : }
376 :
377 : /* Repair path. */
378 0 : if (endp) {
379 0 : *endp = '/';
380 : }
381 : }
382 :
383 0 : return False;
384 : }
385 :
386 : /**
387 : * Check if needle is contained in haystack, * and ? patterns are resolved
388 : * @param haystack list of parameters separated by delimimiter character
389 : * @param needle string to be matched exectly to haystack including pattern matching
390 : * @return True if found
391 : **/
392 0 : static bool matchparam(const char **haystack_list, const char *needle)
393 : {
394 : int i;
395 :
396 0 : if (haystack_list == NULL || haystack_list[0] == NULL ||
397 0 : *haystack_list[0] == '\0' || needle == NULL || *needle == '\0') {
398 0 : return False;
399 : }
400 :
401 0 : for(i=0; haystack_list[i] ; i++) {
402 0 : if(unix_wild_match(haystack_list[i], needle)) {
403 0 : return True;
404 : }
405 : }
406 :
407 0 : return False;
408 : }
409 :
410 : /**
411 : * Touch access or modify date
412 : **/
413 0 : static void recycle_do_touch(vfs_handle_struct *handle,
414 : const struct smb_filename *smb_fname,
415 : bool touch_mtime)
416 : {
417 0 : struct smb_filename *smb_fname_tmp = NULL;
418 : struct smb_file_time ft;
419 : int ret, err;
420 : NTSTATUS status;
421 :
422 0 : init_smb_file_time(&ft);
423 :
424 0 : status = synthetic_pathref(talloc_tos(),
425 0 : handle->conn->cwd_fsp,
426 0 : smb_fname->base_name,
427 0 : smb_fname->stream_name,
428 : NULL,
429 : smb_fname->twrp,
430 : smb_fname->flags,
431 : &smb_fname_tmp);
432 0 : if (!NT_STATUS_IS_OK(status)) {
433 0 : DBG_DEBUG("synthetic_pathref for '%s' failed: %s\n",
434 : smb_fname_str_dbg(smb_fname), nt_errstr(status));
435 0 : return;
436 : }
437 :
438 : /* atime */
439 0 : ft.atime = timespec_current();
440 : /* mtime */
441 0 : ft.mtime = touch_mtime ? ft.atime : smb_fname_tmp->st.st_ex_mtime;
442 :
443 0 : become_root();
444 0 : ret = SMB_VFS_NEXT_FNTIMES(handle, smb_fname_tmp->fsp, &ft);
445 0 : err = errno;
446 0 : unbecome_root();
447 0 : if (ret == -1 ) {
448 0 : DEBUG(0, ("recycle: touching %s failed, reason = %s\n",
449 : smb_fname_str_dbg(smb_fname_tmp), strerror(err)));
450 : }
451 :
452 0 : TALLOC_FREE(smb_fname_tmp);
453 : }
454 :
455 : /**
456 : * Check if file should be recycled
457 : **/
458 0 : static int recycle_unlink_internal(vfs_handle_struct *handle,
459 : struct files_struct *dirfsp,
460 : const struct smb_filename *smb_fname,
461 : int flags)
462 : {
463 0 : const struct loadparm_substitution *lp_sub =
464 : loadparm_s3_global_substitution();
465 0 : connection_struct *conn = handle->conn;
466 0 : struct smb_filename *full_fname = NULL;
467 0 : char *path_name = NULL;
468 0 : char *temp_name = NULL;
469 0 : char *final_name = NULL;
470 0 : struct smb_filename *smb_fname_final = NULL;
471 : const char *base;
472 0 : char *repository = NULL;
473 0 : int i = 1;
474 : off_t maxsize, minsize;
475 : off_t file_size; /* space_avail; */
476 : bool exist;
477 0 : int rc = -1;
478 :
479 0 : repository = talloc_sub_full(NULL, lp_servicename(talloc_tos(), lp_sub, SNUM(conn)),
480 0 : conn->session_info->unix_info->unix_name,
481 0 : conn->connectpath,
482 0 : conn->session_info->unix_token->gid,
483 0 : conn->session_info->unix_info->sanitized_username,
484 0 : conn->session_info->info->domain_name,
485 : recycle_repository(handle));
486 0 : ALLOC_CHECK(repository, done);
487 : /* shouldn't we allow absolute path names here? --metze */
488 : /* Yes :-). JRA. */
489 0 : trim_char(repository, '\0', '/');
490 :
491 0 : if(!repository || *(repository) == '\0') {
492 0 : DEBUG(3, ("recycle: repository path not set, purging %s...\n",
493 : smb_fname_str_dbg(smb_fname)));
494 0 : rc = SMB_VFS_NEXT_UNLINKAT(handle,
495 : dirfsp,
496 : smb_fname,
497 : flags);
498 0 : goto done;
499 : }
500 :
501 0 : full_fname = full_path_from_dirfsp_atname(talloc_tos(),
502 : dirfsp,
503 : smb_fname);
504 0 : if (full_fname == NULL) {
505 0 : return -1;
506 : }
507 :
508 : /* we don't recycle the recycle bin... */
509 0 : if (strncmp(full_fname->base_name, repository,
510 : strlen(repository)) == 0) {
511 0 : DEBUG(3, ("recycle: File is within recycling bin, unlinking ...\n"));
512 0 : rc = SMB_VFS_NEXT_UNLINKAT(handle,
513 : dirfsp,
514 : smb_fname,
515 : flags);
516 0 : goto done;
517 : }
518 :
519 0 : file_size = recycle_get_file_size(handle, full_fname);
520 : /* it is wrong to purge filenames only because they are empty imho
521 : * --- simo
522 : *
523 : if(fsize == 0) {
524 : DEBUG(3, ("recycle: File %s is empty, purging...\n", file_name));
525 : rc = SMB_VFS_NEXT_UNLINKAT(handle,
526 : dirfsp,
527 : file_name,
528 : flags);
529 : goto done;
530 : }
531 : */
532 :
533 : /* FIXME: this is wrong, we should check the whole size of the recycle bin is
534 : * not greater then maxsize, not the size of the single file, also it is better
535 : * to remove older files
536 : */
537 0 : maxsize = recycle_maxsize(handle);
538 0 : if(maxsize > 0 && file_size > maxsize) {
539 0 : DEBUG(3, ("recycle: File %s exceeds maximum recycle size, "
540 : "purging... \n", smb_fname_str_dbg(full_fname)));
541 0 : rc = SMB_VFS_NEXT_UNLINKAT(handle,
542 : dirfsp,
543 : smb_fname,
544 : flags);
545 0 : goto done;
546 : }
547 0 : minsize = recycle_minsize(handle);
548 0 : if(minsize > 0 && file_size < minsize) {
549 0 : DEBUG(3, ("recycle: File %s lowers minimum recycle size, "
550 : "purging... \n", smb_fname_str_dbg(full_fname)));
551 0 : rc = SMB_VFS_NEXT_UNLINKAT(handle,
552 : dirfsp,
553 : smb_fname,
554 : flags);
555 0 : goto done;
556 : }
557 :
558 : /* FIXME: this is wrong: moving files with rename does not change the disk space
559 : * allocation
560 : *
561 : space_avail = SMB_VFS_NEXT_DISK_FREE(handle, ".", True, &bsize, &dfree, &dsize) * 1024L;
562 : DEBUG(5, ("space_avail = %Lu, file_size = %Lu\n", space_avail, file_size));
563 : if(space_avail < file_size) {
564 : DEBUG(3, ("recycle: Not enough diskspace, purging file %s\n", file_name));
565 : rc = SMB_VFS_NEXT_UNLINKAT(handle,
566 : dirfsp,
567 : file_name,
568 : flags);
569 : goto done;
570 : }
571 : */
572 :
573 : /* extract filename and path */
574 0 : base = strrchr(full_fname->base_name, '/');
575 0 : if (base == NULL) {
576 0 : base = full_fname->base_name;
577 0 : path_name = SMB_STRDUP("/");
578 0 : ALLOC_CHECK(path_name, done);
579 : }
580 : else {
581 0 : path_name = SMB_STRDUP(full_fname->base_name);
582 0 : ALLOC_CHECK(path_name, done);
583 0 : path_name[base - smb_fname->base_name] = '\0';
584 0 : base++;
585 : }
586 :
587 : /* original filename with path */
588 0 : DEBUG(10, ("recycle: fname = %s\n", smb_fname_str_dbg(full_fname)));
589 : /* original path */
590 0 : DEBUG(10, ("recycle: fpath = %s\n", path_name));
591 : /* filename without path */
592 0 : DEBUG(10, ("recycle: base = %s\n", base));
593 :
594 0 : if (matchparam(recycle_exclude(handle), base)) {
595 0 : DEBUG(3, ("recycle: file %s is excluded \n", base));
596 0 : rc = SMB_VFS_NEXT_UNLINKAT(handle,
597 : dirfsp,
598 : smb_fname,
599 : flags);
600 0 : goto done;
601 : }
602 :
603 0 : if (matchdirparam(recycle_exclude_dir(handle), path_name)) {
604 0 : DEBUG(3, ("recycle: directory %s is excluded \n", path_name));
605 0 : rc = SMB_VFS_NEXT_UNLINKAT(handle,
606 : dirfsp,
607 : smb_fname,
608 : flags);
609 0 : goto done;
610 : }
611 :
612 0 : if (recycle_keep_dir_tree(handle) == True) {
613 0 : if (asprintf(&temp_name, "%s/%s", repository, path_name) == -1) {
614 0 : ALLOC_CHECK(temp_name, done);
615 : }
616 : } else {
617 0 : temp_name = SMB_STRDUP(repository);
618 : }
619 0 : ALLOC_CHECK(temp_name, done);
620 :
621 0 : exist = recycle_directory_exist(handle, temp_name);
622 0 : if (exist) {
623 0 : DEBUG(10, ("recycle: Directory already exists\n"));
624 : } else {
625 0 : DEBUG(10, ("recycle: Creating directory %s\n", temp_name));
626 0 : if (recycle_create_dir(handle, temp_name) == False) {
627 0 : DEBUG(3, ("recycle: Could not create directory, "
628 : "purging %s...\n",
629 : smb_fname_str_dbg(full_fname)));
630 0 : rc = SMB_VFS_NEXT_UNLINKAT(handle,
631 : dirfsp,
632 : smb_fname,
633 : flags);
634 0 : goto done;
635 : }
636 : }
637 :
638 0 : if (asprintf(&final_name, "%s/%s", temp_name, base) == -1) {
639 0 : ALLOC_CHECK(final_name, done);
640 : }
641 :
642 : /* Create smb_fname with final base name and orig stream name. */
643 0 : smb_fname_final = synthetic_smb_fname(talloc_tos(),
644 : final_name,
645 0 : full_fname->stream_name,
646 : NULL,
647 : full_fname->twrp,
648 : full_fname->flags);
649 0 : if (smb_fname_final == NULL) {
650 0 : rc = SMB_VFS_NEXT_UNLINKAT(handle,
651 : dirfsp,
652 : smb_fname,
653 : flags);
654 0 : goto done;
655 : }
656 :
657 : /* new filename with path */
658 0 : DEBUG(10, ("recycle: recycled file name: %s\n",
659 : smb_fname_str_dbg(smb_fname_final)));
660 :
661 : /* check if we should delete file from recycle bin */
662 0 : if (recycle_file_exist(handle, smb_fname_final)) {
663 0 : if (recycle_versions(handle) == False || matchparam(recycle_noversions(handle), base) == True) {
664 0 : DEBUG(3, ("recycle: Removing old file %s from recycle "
665 : "bin\n", smb_fname_str_dbg(smb_fname_final)));
666 0 : if (SMB_VFS_NEXT_UNLINKAT(handle,
667 : dirfsp->conn->cwd_fsp,
668 : smb_fname_final,
669 : flags) != 0) {
670 0 : DEBUG(1, ("recycle: Error deleting old file: %s\n", strerror(errno)));
671 : }
672 : }
673 : }
674 :
675 : /* rename file we move to recycle bin */
676 0 : i = 1;
677 0 : while (recycle_file_exist(handle, smb_fname_final)) {
678 0 : SAFE_FREE(final_name);
679 0 : if (asprintf(&final_name, "%s/Copy #%d of %s", temp_name, i++, base) == -1) {
680 0 : ALLOC_CHECK(final_name, done);
681 : }
682 0 : TALLOC_FREE(smb_fname_final->base_name);
683 0 : smb_fname_final->base_name = talloc_strdup(smb_fname_final,
684 : final_name);
685 0 : if (smb_fname_final->base_name == NULL) {
686 0 : rc = SMB_VFS_NEXT_UNLINKAT(handle,
687 : dirfsp,
688 : smb_fname,
689 : flags);
690 0 : goto done;
691 : }
692 : }
693 :
694 0 : DEBUG(10, ("recycle: Moving %s to %s\n", smb_fname_str_dbg(full_fname),
695 : smb_fname_str_dbg(smb_fname_final)));
696 0 : rc = SMB_VFS_NEXT_RENAMEAT(handle,
697 : dirfsp,
698 : smb_fname,
699 : handle->conn->cwd_fsp,
700 : smb_fname_final);
701 0 : if (rc != 0) {
702 0 : DEBUG(3, ("recycle: Move error %d (%s), purging file %s "
703 : "(%s)\n", errno, strerror(errno),
704 : smb_fname_str_dbg(full_fname),
705 : smb_fname_str_dbg(smb_fname_final)));
706 0 : rc = SMB_VFS_NEXT_UNLINKAT(handle,
707 : dirfsp,
708 : smb_fname,
709 : flags);
710 0 : goto done;
711 : }
712 :
713 : /* touch access date of moved file */
714 0 : if (recycle_touch(handle) == True || recycle_touch_mtime(handle))
715 0 : recycle_do_touch(handle, smb_fname_final,
716 0 : recycle_touch_mtime(handle));
717 :
718 0 : done:
719 0 : SAFE_FREE(path_name);
720 0 : SAFE_FREE(temp_name);
721 0 : SAFE_FREE(final_name);
722 0 : TALLOC_FREE(full_fname);
723 0 : TALLOC_FREE(smb_fname_final);
724 0 : TALLOC_FREE(repository);
725 0 : return rc;
726 : }
727 :
728 0 : static int recycle_unlinkat(vfs_handle_struct *handle,
729 : struct files_struct *dirfsp,
730 : const struct smb_filename *smb_fname,
731 : int flags)
732 : {
733 : int ret;
734 :
735 0 : if (flags & AT_REMOVEDIR) {
736 0 : ret = SMB_VFS_NEXT_UNLINKAT(handle,
737 : dirfsp,
738 : smb_fname,
739 : flags);
740 : } else {
741 0 : ret = recycle_unlink_internal(handle,
742 : dirfsp,
743 : smb_fname,
744 : flags);
745 : }
746 0 : return ret;
747 : }
748 :
749 : static struct vfs_fn_pointers vfs_recycle_fns = {
750 : .unlinkat_fn = recycle_unlinkat
751 : };
752 :
753 : static_decl_vfs;
754 20 : NTSTATUS vfs_recycle_init(TALLOC_CTX *ctx)
755 : {
756 20 : NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "recycle",
757 : &vfs_recycle_fns);
758 :
759 20 : if (!NT_STATUS_IS_OK(ret))
760 0 : return ret;
761 :
762 20 : vfs_recycle_debug_level = debug_add_class("recycle");
763 20 : if (vfs_recycle_debug_level == -1) {
764 0 : vfs_recycle_debug_level = DBGC_VFS;
765 0 : DEBUG(0, ("vfs_recycle: Couldn't register custom debugging class!\n"));
766 : } else {
767 20 : DEBUG(10, ("vfs_recycle: Debug class number of 'recycle': %d\n", vfs_recycle_debug_level));
768 : }
769 :
770 20 : return ret;
771 : }
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