source3/modules/vfs_recycle.c

   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 static int recycle_unlink(vfs_handle_struct *handle,
  39                           const struct smb_filename *smb_fname);
  40
  41 static const char *recycle_repository(vfs_handle_struct *handle)
  42 {
  43         const char *tmp_str = NULL;
  44
  45         tmp_str = lp_parm_const_string(SNUM(handle->conn), "recycle", "repository",".recycle");
  46
  47         DEBUG(10, ("recycle: repository = %s\n", tmp_str));
  48
  49         return tmp_str;
  50 }
  51
  52 static bool recycle_keep_dir_tree(vfs_handle_struct *handle)
  53 {
  54         bool ret;
  55
  56         ret = lp_parm_bool(SNUM(handle->conn), "recycle", "keeptree", False);
  57
  58         DEBUG(10, ("recycle_bin: keeptree = %s\n", ret?"True":"False"));
  59
  60         return ret;
  61 }
  62
  63 static bool recycle_versions(vfs_handle_struct *handle)
  64 {
  65         bool ret;
  66
  67         ret = lp_parm_bool(SNUM(handle->conn), "recycle", "versions", False);
  68
  69         DEBUG(10, ("recycle: versions = %s\n", ret?"True":"False"));
  70
  71         return ret;
  72 }
  73
  74 static bool recycle_touch(vfs_handle_struct *handle)
  75 {
  76         bool ret;
  77
  78         ret = lp_parm_bool(SNUM(handle->conn), "recycle", "touch", False);
  79
  80         DEBUG(10, ("recycle: touch = %s\n", ret?"True":"False"));
  81
  82         return ret;
  83 }
  84
  85 static bool recycle_touch_mtime(vfs_handle_struct *handle)
  86 {
  87         bool ret;
  88
  89         ret = lp_parm_bool(SNUM(handle->conn), "recycle", "touch_mtime", False);
  90
  91         DEBUG(10, ("recycle: touch_mtime = %s\n", ret?"True":"False"));
  92
  93         return ret;
  94 }
  95
  96 static const char **recycle_exclude(vfs_handle_struct *handle)
  97 {
  98         const char **tmp_lp;
  99
 100         tmp_lp = lp_parm_string_list(SNUM(handle->conn), "recycle", "exclude", NULL);
 101
 102         DEBUG(10, ("recycle: exclude = %s ...\n", tmp_lp?*tmp_lp:""));
 103
 104         return tmp_lp;
 105 }
 106
 107 static const char **recycle_exclude_dir(vfs_handle_struct *handle)
 108 {
 109         const char **tmp_lp;
 110
 111         tmp_lp = lp_parm_string_list(SNUM(handle->conn), "recycle", "exclude_dir", NULL);
 112
 113         DEBUG(10, ("recycle: exclude_dir = %s ...\n", tmp_lp?*tmp_lp:""));
 114
 115         return tmp_lp;
 116 }
 117
 118 static const char **recycle_noversions(vfs_handle_struct *handle)
 119 {
 120         const char **tmp_lp;
 121
 122         tmp_lp = lp_parm_string_list(SNUM(handle->conn), "recycle", "noversions", NULL);
 123
 124         DEBUG(10, ("recycle: noversions = %s\n", tmp_lp?*tmp_lp:""));
 125
 126         return tmp_lp;
 127 }
 128
 129 static SMB_OFF_T recycle_maxsize(vfs_handle_struct *handle)
 130 {
 131         SMB_OFF_T maxsize;
 132
 133         maxsize = conv_str_size(lp_parm_const_string(SNUM(handle->conn),
 134                                             "recycle", "maxsize", NULL));
 135
 136         DEBUG(10, ("recycle: maxsize = %lu\n", (long unsigned int)maxsize));
 137
 138         return maxsize;
 139 }
 140
 141 static SMB_OFF_T recycle_minsize(vfs_handle_struct *handle)
 142 {
 143         SMB_OFF_T minsize;
 144
 145         minsize = conv_str_size(lp_parm_const_string(SNUM(handle->conn),
 146                                             "recycle", "minsize", NULL));
 147
 148         DEBUG(10, ("recycle: minsize = %lu\n", (long unsigned int)minsize));
 149
 150         return minsize;
 151 }
 152
 153 static mode_t recycle_directory_mode(vfs_handle_struct *handle)
 154 {
 155         int dirmode;
 156         const char *buff;
 157
 158         buff = lp_parm_const_string(SNUM(handle->conn), "recycle", "directory_mode", NULL);
 159
 160         if (buff != NULL ) {
 161                 sscanf(buff, "%o", &dirmode);
 162         } else {
 163                 dirmode=S_IRUSR | S_IWUSR | S_IXUSR;
 164         }
 165
 166         DEBUG(10, ("recycle: directory_mode = %o\n", dirmode));
 167         return (mode_t)dirmode;
 168 }
 169
 170 static mode_t recycle_subdir_mode(vfs_handle_struct *handle)
 171 {
 172         int dirmode;
 173         const char *buff;
 174
 175         buff = lp_parm_const_string(SNUM(handle->conn), "recycle", "subdir_mode", NULL);
 176
 177         if (buff != NULL ) {
 178                 sscanf(buff, "%o", &dirmode);
 179         } else {
 180                 dirmode=recycle_directory_mode(handle);
 181         }
 182
 183         DEBUG(10, ("recycle: subdir_mode = %o\n", dirmode));
 184         return (mode_t)dirmode;
 185 }
 186
 187 static bool recycle_directory_exist(vfs_handle_struct *handle, const char *dname)
 188 {
 189         SMB_STRUCT_STAT st;
 190
 191         if (vfs_stat_smb_fname(handle->conn, dname, &st) == 0) {
 192                 if (S_ISDIR(st.st_ex_mode)) {
 193                         return True;
 194                 }
 195         }
 196
 197         return False;
 198 }
 199
 200 static bool recycle_file_exist(vfs_handle_struct *handle,
 201                                const struct smb_filename *smb_fname)
 202 {
 203         struct smb_filename *smb_fname_tmp = NULL;
 204         NTSTATUS status;
 205         bool ret = false;
 206
 207         status = copy_smb_filename(talloc_tos(), smb_fname, &smb_fname_tmp);
 208         if (!NT_STATUS_IS_OK(status)) {
 209                 return false;
 210         }
 211
 212         if (SMB_VFS_STAT(handle->conn, smb_fname_tmp) == 0) {
 213                 if (S_ISREG(smb_fname_tmp->st.st_ex_mode)) {
 214                         ret = true;
 215                 }
 216         }
 217
 218         TALLOC_FREE(smb_fname_tmp);
 219         return ret;
 220 }
 221
 222 /**
 223  * Return file size
 224  * @param conn connection
 225  * @param fname file name
 226  * @return size in bytes
 227  **/
 228 static SMB_OFF_T recycle_get_file_size(vfs_handle_struct *handle,
 229                                        const struct smb_filename *smb_fname)
 230 {
 231         struct smb_filename *smb_fname_tmp = NULL;
 232         NTSTATUS status;
 233         SMB_OFF_T size;
 234
 235         status = copy_smb_filename(talloc_tos(), smb_fname, &smb_fname_tmp);
 236         if (!NT_STATUS_IS_OK(status)) {
 237                 size = (SMB_OFF_T)0;
 238                 goto out;
 239         }
 240
 241         if (SMB_VFS_STAT(handle->conn, smb_fname_tmp) != 0) {
 242                 DEBUG(0,("recycle: stat for %s returned %s\n",
 243                          smb_fname_str_dbg(smb_fname_tmp), strerror(errno)));
 244                 size = (SMB_OFF_T)0;
 245                 goto out;
 246         }
 247
 248         size = smb_fname_tmp->st.st_ex_size;
 249  out:
 250         TALLOC_FREE(smb_fname_tmp);
 251         return size;
 252 }
 253
 254 /**
 255  * Create directory tree
 256  * @param conn connection
 257  * @param dname Directory tree to be created
 258  * @return Returns True for success
 259  **/
 260 static bool recycle_create_dir(vfs_handle_struct *handle, const char *dname)
 261 {
 262         size_t len;
 263         mode_t mode;
 264         char *new_dir = NULL;
 265         char *tmp_str = NULL;
 266         char *token;
 267         char *tok_str;
 268         bool ret = False;
 269         char *saveptr;
 270
 271         mode = recycle_directory_mode(handle);
 272
 273         tmp_str = SMB_STRDUP(dname);
 274         ALLOC_CHECK(tmp_str, done);
 275         tok_str = tmp_str;
 276
 277         len = strlen(dname)+1;
 278         new_dir = (char *)SMB_MALLOC(len + 1);
 279         ALLOC_CHECK(new_dir, done);
 280         *new_dir = '\0';
 281         if (dname[0] == '/') {
 282                 /* Absolute path. */
 283                 strlcat(new_dir,"/",len+1);
 284         }
 285
 286         /* Create directory tree if neccessary */
 287         for(token = strtok_r(tok_str, "/", &saveptr); token;
 288             token = strtok_r(NULL, "/", &saveptr)) {
 289                 strlcat(new_dir, token, len+1);
 290                 if (recycle_directory_exist(handle, new_dir))
 291                         DEBUG(10, ("recycle: dir %s already exists\n", new_dir));
 292                 else {
 293                         DEBUG(5, ("recycle: creating new dir %s\n", new_dir));
 294                         if (SMB_VFS_NEXT_MKDIR(handle, new_dir, mode) != 0) {
 295                                 DEBUG(1,("recycle: mkdir failed for %s with error: %s\n", new_dir, strerror(errno)));
 296                                 ret = False;
 297                                 goto done;
 298                         }
 299                 }
 300                 strlcat(new_dir, "/", len+1);
 301                 mode = recycle_subdir_mode(handle);
 302         }
 303
 304         ret = True;
 305 done:
 306         SAFE_FREE(tmp_str);
 307         SAFE_FREE(new_dir);
 308         return ret;
 309 }
 310
 311 /**
 312  * Check if any of the components of "exclude_list" are contained in path.
 313  * Return True if found
 314  **/
 315
 316 static bool matchdirparam(const char **dir_exclude_list, char *path)
 317 {
 318         char *startp = NULL, *endp = NULL;
 319
 320         if (dir_exclude_list == NULL || dir_exclude_list[0] == NULL ||
 321                 *dir_exclude_list[0] == '\0' || path == NULL || *path == '\0') {
 322                 return False;
 323         }
 324
 325         /*
 326          * Walk the components of path, looking for matches with the
 327          * exclude list on each component.
 328          */
 329
 330         for (startp = path; startp; startp = endp) {
 331                 int i;
 332
 333                 while (*startp == '/') {
 334                         startp++;
 335                 }
 336                 endp = strchr(startp, '/');
 337                 if (endp) {
 338                         *endp = '\0';
 339                 }
 340
 341                 for(i=0; dir_exclude_list[i] ; i++) {
 342                         if(unix_wild_match(dir_exclude_list[i], startp)) {
 343                                 /* Repair path. */
 344                                 if (endp) {
 345                                         *endp = '/';
 346                                 }
 347                                 return True;
 348                         }
 349                 }
 350
 351                 /* Repair path. */
 352                 if (endp) {
 353                         *endp = '/';
 354                 }
 355         }
 356
 357         return False;
 358 }
 359
 360 /**
 361  * Check if needle is contained in haystack, * and ? patterns are resolved
 362  * @param haystack list of parameters separated by delimimiter character
 363  * @param needle string to be matched exectly to haystack including pattern matching
 364  * @return True if found
 365  **/
 366 static bool matchparam(const char **haystack_list, const char *needle)
 367 {
 368         int i;
 369
 370         if (haystack_list == NULL || haystack_list[0] == NULL ||
 371                 *haystack_list[0] == '\0' || needle == NULL || *needle == '\0') {
 372                 return False;
 373         }
 374
 375         for(i=0; haystack_list[i] ; i++) {
 376                 if(unix_wild_match(haystack_list[i], needle)) {
 377                         return True;
 378                 }
 379         }
 380
 381         return False;
 382 }
 383
 384 /**
 385  * Touch access or modify date
 386  **/
 387 static void recycle_do_touch(vfs_handle_struct *handle,
 388                              const struct smb_filename *smb_fname,
 389                              bool touch_mtime)
 390 {
 391         struct smb_filename *smb_fname_tmp = NULL;
 392         struct smb_file_time ft;
 393         NTSTATUS status;
 394         int ret, err;
 395
 396         ZERO_STRUCT(ft);
 397
 398         status = copy_smb_filename(talloc_tos(), smb_fname, &smb_fname_tmp);
 399         if (!NT_STATUS_IS_OK(status)) {
 400                 return;
 401         }
 402
 403         if (SMB_VFS_STAT(handle->conn, smb_fname_tmp) != 0) {
 404                 DEBUG(0,("recycle: stat for %s returned %s\n",
 405                          smb_fname_str_dbg(smb_fname_tmp), strerror(errno)));
 406                 goto out;
 407         }
 408         /* atime */
 409         ft.atime = timespec_current();
 410         /* mtime */
 411         ft.mtime = touch_mtime ? ft.atime : smb_fname_tmp->st.st_ex_mtime;
 412
 413         become_root();
 414         ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname_tmp, &ft);
 415         err = errno;
 416         unbecome_root();
 417         if (ret == -1 ) {
 418                 DEBUG(0, ("recycle: touching %s failed, reason = %s\n",
 419                           smb_fname_str_dbg(smb_fname_tmp), strerror(err)));
 420         }
 421  out:
 422         TALLOC_FREE(smb_fname_tmp);
 423 }
 424
 425 /**
 426  * Check if file should be recycled
 427  **/
 428 static int recycle_unlink(vfs_handle_struct *handle,
 429     const struct smb_filename *smb_fname)
 430 {
 431         connection_struct *conn = handle->conn;
 432         char *path_name = NULL;
 433         char *temp_name = NULL;
 434         char *final_name = NULL;
 435         struct smb_filename *smb_fname_final = NULL;
 436         const char *base;
 437         char *repository = NULL;
 438         int i = 1;
 439         SMB_OFF_T maxsize, minsize;
 440         SMB_OFF_T file_size; /* space_avail;    */
 441         bool exist;
 442         NTSTATUS status;
 443         int rc = -1;
 444
 445         repository = talloc_sub_advanced(NULL, lp_servicename(SNUM(conn)),
 446                                         conn->session_info->unix_info->unix_name,
 447                                         conn->connectpath,
 448                                         conn->session_info->unix_token->gid,
 449                                         conn->session_info->unix_info->sanitized_username,
 450                                         conn->session_info->info->domain_name,
 451                                         recycle_repository(handle));
 452         ALLOC_CHECK(repository, done);
 453         /* shouldn't we allow absolute path names here? --metze */
 454         /* Yes :-). JRA. */
 455         trim_char(repository, '\0', '/');
 456
 457         if(!repository || *(repository) == '\0') {
 458                 DEBUG(3, ("recycle: repository path not set, purging %s...\n",
 459                           smb_fname_str_dbg(smb_fname)));
 460                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 461                 goto done;
 462         }
 463
 464         /* we don't recycle the recycle bin... */
 465         if (strncmp(smb_fname->base_name, repository,
 466                     strlen(repository)) == 0) {
 467                 DEBUG(3, ("recycle: File is within recycling bin, unlinking ...\n"));
 468                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 469                 goto done;
 470         }
 471
 472         file_size = recycle_get_file_size(handle, smb_fname);
 473         /* it is wrong to purge filenames only because they are empty imho
 474          *   --- simo
 475          *
 476         if(fsize == 0) {
 477                 DEBUG(3, ("recycle: File %s is empty, purging...\n", file_name));
 478                 rc = SMB_VFS_NEXT_UNLINK(handle,file_name);
 479                 goto done;
 480         }
 481          */
 482
 483         /* FIXME: this is wrong, we should check the whole size of the recycle bin is
 484          * not greater then maxsize, not the size of the single file, also it is better
 485          * to remove older files
 486          */
 487         maxsize = recycle_maxsize(handle);
 488         if(maxsize > 0 && file_size > maxsize) {
 489                 DEBUG(3, ("recycle: File %s exceeds maximum recycle size, "
 490                           "purging... \n", smb_fname_str_dbg(smb_fname)));
 491                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 492                 goto done;
 493         }
 494         minsize = recycle_minsize(handle);
 495         if(minsize > 0 && file_size < minsize) {
 496                 DEBUG(3, ("recycle: File %s lowers minimum recycle size, "
 497                           "purging... \n", smb_fname_str_dbg(smb_fname)));
 498                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 499                 goto done;
 500         }
 501
 502         /* FIXME: this is wrong: moving files with rename does not change the disk space
 503          * allocation
 504          *
 505         space_avail = SMB_VFS_NEXT_DISK_FREE(handle, ".", True, &bsize, &dfree, &dsize) * 1024L;
 506         DEBUG(5, ("space_avail = %Lu, file_size = %Lu\n", space_avail, file_size));
 507         if(space_avail < file_size) {
 508                 DEBUG(3, ("recycle: Not enough diskspace, purging file %s\n", file_name));
 509                 rc = SMB_VFS_NEXT_UNLINK(handle, file_name);
 510                 goto done;
 511         }
 512          */
 513
 514         /* extract filename and path */
 515         base = strrchr(smb_fname->base_name, '/');
 516         if (base == NULL) {
 517                 base = smb_fname->base_name;
 518                 path_name = SMB_STRDUP("/");
 519                 ALLOC_CHECK(path_name, done);
 520         }
 521         else {
 522                 path_name = SMB_STRDUP(smb_fname->base_name);
 523                 ALLOC_CHECK(path_name, done);
 524                 path_name[base - smb_fname->base_name] = '\0';
 525                 base++;
 526         }
 527
 528         /* original filename with path */
 529         DEBUG(10, ("recycle: fname = %s\n", smb_fname_str_dbg(smb_fname)));
 530         /* original path */
 531         DEBUG(10, ("recycle: fpath = %s\n", path_name));
 532         /* filename without path */
 533         DEBUG(10, ("recycle: base = %s\n", base));
 534
 535         if (matchparam(recycle_exclude(handle), base)) {
 536                 DEBUG(3, ("recycle: file %s is excluded \n", base));
 537                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 538                 goto done;
 539         }
 540
 541         if (matchdirparam(recycle_exclude_dir(handle), path_name)) {
 542                 DEBUG(3, ("recycle: directory %s is excluded \n", path_name));
 543                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 544                 goto done;
 545         }
 546
 547         if (recycle_keep_dir_tree(handle) == True) {
 548                 if (asprintf(&temp_name, "%s/%s", repository, path_name) == -1) {
 549                         ALLOC_CHECK(temp_name, done);
 550                 }
 551         } else {
 552                 temp_name = SMB_STRDUP(repository);
 553         }
 554         ALLOC_CHECK(temp_name, done);
 555
 556         exist = recycle_directory_exist(handle, temp_name);
 557         if (exist) {
 558                 DEBUG(10, ("recycle: Directory already exists\n"));
 559         } else {
 560                 DEBUG(10, ("recycle: Creating directory %s\n", temp_name));
 561                 if (recycle_create_dir(handle, temp_name) == False) {
 562                         DEBUG(3, ("recycle: Could not create directory, "
 563                                   "purging %s...\n",
 564                                   smb_fname_str_dbg(smb_fname)));
 565                         rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 566                         goto done;
 567                 }
 568         }
 569
 570         if (asprintf(&final_name, "%s/%s", temp_name, base) == -1) {
 571                 ALLOC_CHECK(final_name, done);
 572         }
 573
 574         /* Create smb_fname with final base name and orig stream name. */
 575         status = create_synthetic_smb_fname(talloc_tos(), final_name,
 576                                             smb_fname->stream_name, NULL,
 577                                             &smb_fname_final);
 578         if (!NT_STATUS_IS_OK(status)) {
 579                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 580                 goto done;
 581         }
 582
 583         /* new filename with path */
 584         DEBUG(10, ("recycle: recycled file name: %s\n",
 585                    smb_fname_str_dbg(smb_fname_final)));
 586
 587         /* check if we should delete file from recycle bin */
 588         if (recycle_file_exist(handle, smb_fname_final)) {
 589                 if (recycle_versions(handle) == False || matchparam(recycle_noversions(handle), base) == True) {
 590                         DEBUG(3, ("recycle: Removing old file %s from recycle "
 591                                   "bin\n", smb_fname_str_dbg(smb_fname_final)));
 592                         if (SMB_VFS_NEXT_UNLINK(handle,
 593                                                 smb_fname_final) != 0) {
 594                                 DEBUG(1, ("recycle: Error deleting old file: %s\n", strerror(errno)));
 595                         }
 596                 }
 597         }
 598
 599         /* rename file we move to recycle bin */
 600         i = 1;
 601         while (recycle_file_exist(handle, smb_fname_final)) {
 602                 SAFE_FREE(final_name);
 603                 if (asprintf(&final_name, "%s/Copy #%d of %s", temp_name, i++, base) == -1) {
 604                         ALLOC_CHECK(final_name, done);
 605                 }
 606                 TALLOC_FREE(smb_fname_final->base_name);
 607                 smb_fname_final->base_name = talloc_strdup(smb_fname_final,
 608                                                            final_name);
 609                 if (smb_fname_final->base_name == NULL) {
 610                         rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 611                         goto done;
 612                 }
 613         }
 614
 615         DEBUG(10, ("recycle: Moving %s to %s\n", smb_fname_str_dbg(smb_fname),
 616                 smb_fname_str_dbg(smb_fname_final)));
 617         rc = SMB_VFS_NEXT_RENAME(handle, smb_fname, smb_fname_final);
 618         if (rc != 0) {
 619                 DEBUG(3, ("recycle: Move error %d (%s), purging file %s "
 620                           "(%s)\n", errno, strerror(errno),
 621                           smb_fname_str_dbg(smb_fname),
 622                           smb_fname_str_dbg(smb_fname_final)));
 623                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 624                 goto done;
 625         }
 626
 627         /* touch access date of moved file */
 628         if (recycle_touch(handle) == True || recycle_touch_mtime(handle))
 629                 recycle_do_touch(handle, smb_fname_final,
 630                                  recycle_touch_mtime(handle));
 631
 632 done:
 633         SAFE_FREE(path_name);
 634         SAFE_FREE(temp_name);
 635         SAFE_FREE(final_name);
 636         TALLOC_FREE(smb_fname_final);
 637         TALLOC_FREE(repository);
 638         return rc;
 639 }
 640
 641 static struct vfs_fn_pointers vfs_recycle_fns = {
 642         .unlink = recycle_unlink
 643 };
 644
 645 NTSTATUS vfs_recycle_init(void);
 646 NTSTATUS vfs_recycle_init(void)
 647 {
 648         NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "recycle",
 649                                         &vfs_recycle_fns);
 650
 651         if (!NT_STATUS_IS_OK(ret))
 652                 return ret;
 653
 654         vfs_recycle_debug_level = debug_add_class("recycle");
 655         if (vfs_recycle_debug_level == -1) {
 656                 vfs_recycle_debug_level = DBGC_VFS;
 657                 DEBUG(0, ("vfs_recycle: Couldn't register custom debugging class!\n"));
 658         } else {
 659                 DEBUG(10, ("vfs_recycle: Debug class number of 'recycle': %d\n", vfs_recycle_debug_level));
 660         }
 661
 662         return ret;
 663 }