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 off_t recycle_maxsize(vfs_handle_struct *handle)
 130 {
 131         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 off_t recycle_minsize(vfs_handle_struct *handle)
 142 {
 143         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         bool ret = false;
 205
 206         smb_fname_tmp = cp_smb_filename(talloc_tos(), smb_fname);
 207         if (smb_fname_tmp == NULL) {
 208                 return false;
 209         }
 210
 211         if (SMB_VFS_STAT(handle->conn, smb_fname_tmp) == 0) {
 212                 if (S_ISREG(smb_fname_tmp->st.st_ex_mode)) {
 213                         ret = true;
 214                 }
 215         }
 216
 217         TALLOC_FREE(smb_fname_tmp);
 218         return ret;
 219 }
 220
 221 /**
 222  * Return file size
 223  * @param conn connection
 224  * @param fname file name
 225  * @return size in bytes
 226  **/
 227 static off_t recycle_get_file_size(vfs_handle_struct *handle,
 228                                        const struct smb_filename *smb_fname)
 229 {
 230         struct smb_filename *smb_fname_tmp = NULL;
 231         NTSTATUS status;
 232         off_t size;
 233
 234         status = copy_smb_filename(talloc_tos(), smb_fname, &smb_fname_tmp);
 235         if (!NT_STATUS_IS_OK(status)) {
 236                 size = (off_t)0;
 237                 goto out;
 238         }
 239
 240         if (SMB_VFS_STAT(handle->conn, smb_fname_tmp) != 0) {
 241                 DEBUG(0,("recycle: stat for %s returned %s\n",
 242                          smb_fname_str_dbg(smb_fname_tmp), strerror(errno)));
 243                 size = (off_t)0;
 244                 goto out;
 245         }
 246
 247         size = smb_fname_tmp->st.st_ex_size;
 248  out:
 249         TALLOC_FREE(smb_fname_tmp);
 250         return size;
 251 }
 252
 253 /**
 254  * Create directory tree
 255  * @param conn connection
 256  * @param dname Directory tree to be created
 257  * @return Returns True for success
 258  **/
 259 static bool recycle_create_dir(vfs_handle_struct *handle, const char *dname)
 260 {
 261         size_t len;
 262         mode_t mode;
 263         char *new_dir = NULL;
 264         char *tmp_str = NULL;
 265         char *token;
 266         char *tok_str;
 267         bool ret = False;
 268         char *saveptr;
 269
 270         mode = recycle_directory_mode(handle);
 271
 272         tmp_str = SMB_STRDUP(dname);
 273         ALLOC_CHECK(tmp_str, done);
 274         tok_str = tmp_str;
 275
 276         len = strlen(dname)+1;
 277         new_dir = (char *)SMB_MALLOC(len + 1);
 278         ALLOC_CHECK(new_dir, done);
 279         *new_dir = '\0';
 280         if (dname[0] == '/') {
 281                 /* Absolute path. */
 282                 if (strlcat(new_dir,"/",len+1) >= len+1) {
 283                         goto done;
 284                 }
 285         }
 286
 287         /* Create directory tree if neccessary */
 288         for(token = strtok_r(tok_str, "/", &saveptr); token;
 289             token = strtok_r(NULL, "/", &saveptr)) {
 290                 if (strlcat(new_dir, token, len+1) >= len+1) {
 291                         goto done;
 292                 }
 293                 if (recycle_directory_exist(handle, new_dir))
 294                         DEBUG(10, ("recycle: dir %s already exists\n", new_dir));
 295                 else {
 296                         DEBUG(5, ("recycle: creating new dir %s\n", new_dir));
 297                         if (SMB_VFS_NEXT_MKDIR(handle, new_dir, mode) != 0) {
 298                                 DEBUG(1,("recycle: mkdir failed for %s with error: %s\n", new_dir, strerror(errno)));
 299                                 ret = False;
 300                                 goto done;
 301                         }
 302                 }
 303                 if (strlcat(new_dir, "/", len+1) >= len+1) {
 304                         goto done;
 305                 }
 306                 mode = recycle_subdir_mode(handle);
 307         }
 308
 309         ret = True;
 310 done:
 311         SAFE_FREE(tmp_str);
 312         SAFE_FREE(new_dir);
 313         return ret;
 314 }
 315
 316 /**
 317  * Check if any of the components of "exclude_list" are contained in path.
 318  * Return True if found
 319  **/
 320
 321 static bool matchdirparam(const char **dir_exclude_list, char *path)
 322 {
 323         char *startp = NULL, *endp = NULL;
 324
 325         if (dir_exclude_list == NULL || dir_exclude_list[0] == NULL ||
 326                 *dir_exclude_list[0] == '\0' || path == NULL || *path == '\0') {
 327                 return False;
 328         }
 329
 330         /*
 331          * Walk the components of path, looking for matches with the
 332          * exclude list on each component.
 333          */
 334
 335         for (startp = path; startp; startp = endp) {
 336                 int i;
 337
 338                 while (*startp == '/') {
 339                         startp++;
 340                 }
 341                 endp = strchr(startp, '/');
 342                 if (endp) {
 343                         *endp = '\0';
 344                 }
 345
 346                 for(i=0; dir_exclude_list[i] ; i++) {
 347                         if(unix_wild_match(dir_exclude_list[i], startp)) {
 348                                 /* Repair path. */
 349                                 if (endp) {
 350                                         *endp = '/';
 351                                 }
 352                                 return True;
 353                         }
 354                 }
 355
 356                 /* Repair path. */
 357                 if (endp) {
 358                         *endp = '/';
 359                 }
 360         }
 361
 362         return False;
 363 }
 364
 365 /**
 366  * Check if needle is contained in haystack, * and ? patterns are resolved
 367  * @param haystack list of parameters separated by delimimiter character
 368  * @param needle string to be matched exectly to haystack including pattern matching
 369  * @return True if found
 370  **/
 371 static bool matchparam(const char **haystack_list, const char *needle)
 372 {
 373         int i;
 374
 375         if (haystack_list == NULL || haystack_list[0] == NULL ||
 376                 *haystack_list[0] == '\0' || needle == NULL || *needle == '\0') {
 377                 return False;
 378         }
 379
 380         for(i=0; haystack_list[i] ; i++) {
 381                 if(unix_wild_match(haystack_list[i], needle)) {
 382                         return True;
 383                 }
 384         }
 385
 386         return False;
 387 }
 388
 389 /**
 390  * Touch access or modify date
 391  **/
 392 static void recycle_do_touch(vfs_handle_struct *handle,
 393                              const struct smb_filename *smb_fname,
 394                              bool touch_mtime)
 395 {
 396         struct smb_filename *smb_fname_tmp = NULL;
 397         struct smb_file_time ft;
 398         NTSTATUS status;
 399         int ret, err;
 400
 401         ZERO_STRUCT(ft);
 402
 403         status = copy_smb_filename(talloc_tos(), smb_fname, &smb_fname_tmp);
 404         if (!NT_STATUS_IS_OK(status)) {
 405                 return;
 406         }
 407
 408         if (SMB_VFS_STAT(handle->conn, smb_fname_tmp) != 0) {
 409                 DEBUG(0,("recycle: stat for %s returned %s\n",
 410                          smb_fname_str_dbg(smb_fname_tmp), strerror(errno)));
 411                 goto out;
 412         }
 413         /* atime */
 414         ft.atime = timespec_current();
 415         /* mtime */
 416         ft.mtime = touch_mtime ? ft.atime : smb_fname_tmp->st.st_ex_mtime;
 417
 418         become_root();
 419         ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname_tmp, &ft);
 420         err = errno;
 421         unbecome_root();
 422         if (ret == -1 ) {
 423                 DEBUG(0, ("recycle: touching %s failed, reason = %s\n",
 424                           smb_fname_str_dbg(smb_fname_tmp), strerror(err)));
 425         }
 426  out:
 427         TALLOC_FREE(smb_fname_tmp);
 428 }
 429
 430 /**
 431  * Check if file should be recycled
 432  **/
 433 static int recycle_unlink(vfs_handle_struct *handle,
 434     const struct smb_filename *smb_fname)
 435 {
 436         connection_struct *conn = handle->conn;
 437         char *path_name = NULL;
 438         char *temp_name = NULL;
 439         char *final_name = NULL;
 440         struct smb_filename *smb_fname_final = NULL;
 441         const char *base;
 442         char *repository = NULL;
 443         int i = 1;
 444         off_t maxsize, minsize;
 445         off_t file_size; /* space_avail;        */
 446         bool exist;
 447         NTSTATUS status;
 448         int rc = -1;
 449
 450         repository = talloc_sub_advanced(NULL, lp_servicename(talloc_tos(), SNUM(conn)),
 451                                         conn->session_info->unix_info->unix_name,
 452                                         conn->connectpath,
 453                                         conn->session_info->unix_token->gid,
 454                                         conn->session_info->unix_info->sanitized_username,
 455                                         conn->session_info->info->domain_name,
 456                                         recycle_repository(handle));
 457         ALLOC_CHECK(repository, done);
 458         /* shouldn't we allow absolute path names here? --metze */
 459         /* Yes :-). JRA. */
 460         trim_char(repository, '\0', '/');
 461
 462         if(!repository || *(repository) == '\0') {
 463                 DEBUG(3, ("recycle: repository path not set, purging %s...\n",
 464                           smb_fname_str_dbg(smb_fname)));
 465                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 466                 goto done;
 467         }
 468
 469         /* we don't recycle the recycle bin... */
 470         if (strncmp(smb_fname->base_name, repository,
 471                     strlen(repository)) == 0) {
 472                 DEBUG(3, ("recycle: File is within recycling bin, unlinking ...\n"));
 473                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 474                 goto done;
 475         }
 476
 477         file_size = recycle_get_file_size(handle, smb_fname);
 478         /* it is wrong to purge filenames only because they are empty imho
 479          *   --- simo
 480          *
 481         if(fsize == 0) {
 482                 DEBUG(3, ("recycle: File %s is empty, purging...\n", file_name));
 483                 rc = SMB_VFS_NEXT_UNLINK(handle,file_name);
 484                 goto done;
 485         }
 486          */
 487
 488         /* FIXME: this is wrong, we should check the whole size of the recycle bin is
 489          * not greater then maxsize, not the size of the single file, also it is better
 490          * to remove older files
 491          */
 492         maxsize = recycle_maxsize(handle);
 493         if(maxsize > 0 && file_size > maxsize) {
 494                 DEBUG(3, ("recycle: File %s exceeds maximum recycle size, "
 495                           "purging... \n", smb_fname_str_dbg(smb_fname)));
 496                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 497                 goto done;
 498         }
 499         minsize = recycle_minsize(handle);
 500         if(minsize > 0 && file_size < minsize) {
 501                 DEBUG(3, ("recycle: File %s lowers minimum recycle size, "
 502                           "purging... \n", smb_fname_str_dbg(smb_fname)));
 503                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 504                 goto done;
 505         }
 506
 507         /* FIXME: this is wrong: moving files with rename does not change the disk space
 508          * allocation
 509          *
 510         space_avail = SMB_VFS_NEXT_DISK_FREE(handle, ".", True, &bsize, &dfree, &dsize) * 1024L;
 511         DEBUG(5, ("space_avail = %Lu, file_size = %Lu\n", space_avail, file_size));
 512         if(space_avail < file_size) {
 513                 DEBUG(3, ("recycle: Not enough diskspace, purging file %s\n", file_name));
 514                 rc = SMB_VFS_NEXT_UNLINK(handle, file_name);
 515                 goto done;
 516         }
 517          */
 518
 519         /* extract filename and path */
 520         base = strrchr(smb_fname->base_name, '/');
 521         if (base == NULL) {
 522                 base = smb_fname->base_name;
 523                 path_name = SMB_STRDUP("/");
 524                 ALLOC_CHECK(path_name, done);
 525         }
 526         else {
 527                 path_name = SMB_STRDUP(smb_fname->base_name);
 528                 ALLOC_CHECK(path_name, done);
 529                 path_name[base - smb_fname->base_name] = '\0';
 530                 base++;
 531         }
 532
 533         /* original filename with path */
 534         DEBUG(10, ("recycle: fname = %s\n", smb_fname_str_dbg(smb_fname)));
 535         /* original path */
 536         DEBUG(10, ("recycle: fpath = %s\n", path_name));
 537         /* filename without path */
 538         DEBUG(10, ("recycle: base = %s\n", base));
 539
 540         if (matchparam(recycle_exclude(handle), base)) {
 541                 DEBUG(3, ("recycle: file %s is excluded \n", base));
 542                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 543                 goto done;
 544         }
 545
 546         if (matchdirparam(recycle_exclude_dir(handle), path_name)) {
 547                 DEBUG(3, ("recycle: directory %s is excluded \n", path_name));
 548                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 549                 goto done;
 550         }
 551
 552         if (recycle_keep_dir_tree(handle) == True) {
 553                 if (asprintf(&temp_name, "%s/%s", repository, path_name) == -1) {
 554                         ALLOC_CHECK(temp_name, done);
 555                 }
 556         } else {
 557                 temp_name = SMB_STRDUP(repository);
 558         }
 559         ALLOC_CHECK(temp_name, done);
 560
 561         exist = recycle_directory_exist(handle, temp_name);
 562         if (exist) {
 563                 DEBUG(10, ("recycle: Directory already exists\n"));
 564         } else {
 565                 DEBUG(10, ("recycle: Creating directory %s\n", temp_name));
 566                 if (recycle_create_dir(handle, temp_name) == False) {
 567                         DEBUG(3, ("recycle: Could not create directory, "
 568                                   "purging %s...\n",
 569                                   smb_fname_str_dbg(smb_fname)));
 570                         rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 571                         goto done;
 572                 }
 573         }
 574
 575         if (asprintf(&final_name, "%s/%s", temp_name, base) == -1) {
 576                 ALLOC_CHECK(final_name, done);
 577         }
 578
 579         /* Create smb_fname with final base name and orig stream name. */
 580         status = create_synthetic_smb_fname(talloc_tos(), final_name,
 581                                             smb_fname->stream_name, NULL,
 582                                             &smb_fname_final);
 583         if (!NT_STATUS_IS_OK(status)) {
 584                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 585                 goto done;
 586         }
 587
 588         /* new filename with path */
 589         DEBUG(10, ("recycle: recycled file name: %s\n",
 590                    smb_fname_str_dbg(smb_fname_final)));
 591
 592         /* check if we should delete file from recycle bin */
 593         if (recycle_file_exist(handle, smb_fname_final)) {
 594                 if (recycle_versions(handle) == False || matchparam(recycle_noversions(handle), base) == True) {
 595                         DEBUG(3, ("recycle: Removing old file %s from recycle "
 596                                   "bin\n", smb_fname_str_dbg(smb_fname_final)));
 597                         if (SMB_VFS_NEXT_UNLINK(handle,
 598                                                 smb_fname_final) != 0) {
 599                                 DEBUG(1, ("recycle: Error deleting old file: %s\n", strerror(errno)));
 600                         }
 601                 }
 602         }
 603
 604         /* rename file we move to recycle bin */
 605         i = 1;
 606         while (recycle_file_exist(handle, smb_fname_final)) {
 607                 SAFE_FREE(final_name);
 608                 if (asprintf(&final_name, "%s/Copy #%d of %s", temp_name, i++, base) == -1) {
 609                         ALLOC_CHECK(final_name, done);
 610                 }
 611                 TALLOC_FREE(smb_fname_final->base_name);
 612                 smb_fname_final->base_name = talloc_strdup(smb_fname_final,
 613                                                            final_name);
 614                 if (smb_fname_final->base_name == NULL) {
 615                         rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 616                         goto done;
 617                 }
 618         }
 619
 620         DEBUG(10, ("recycle: Moving %s to %s\n", smb_fname_str_dbg(smb_fname),
 621                 smb_fname_str_dbg(smb_fname_final)));
 622         rc = SMB_VFS_NEXT_RENAME(handle, smb_fname, smb_fname_final);
 623         if (rc != 0) {
 624                 DEBUG(3, ("recycle: Move error %d (%s), purging file %s "
 625                           "(%s)\n", errno, strerror(errno),
 626                           smb_fname_str_dbg(smb_fname),
 627                           smb_fname_str_dbg(smb_fname_final)));
 628                 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 629                 goto done;
 630         }
 631
 632         /* touch access date of moved file */
 633         if (recycle_touch(handle) == True || recycle_touch_mtime(handle))
 634                 recycle_do_touch(handle, smb_fname_final,
 635                                  recycle_touch_mtime(handle));
 636
 637 done:
 638         SAFE_FREE(path_name);
 639         SAFE_FREE(temp_name);
 640         SAFE_FREE(final_name);
 641         TALLOC_FREE(smb_fname_final);
 642         TALLOC_FREE(repository);
 643         return rc;
 644 }
 645
 646 static struct vfs_fn_pointers vfs_recycle_fns = {
 647         .unlink_fn = recycle_unlink
 648 };
 649
 650 NTSTATUS vfs_recycle_init(void);
 651 NTSTATUS vfs_recycle_init(void)
 652 {
 653         NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "recycle",
 654                                         &vfs_recycle_fns);
 655
 656         if (!NT_STATUS_IS_OK(ret))
 657                 return ret;
 658
 659         vfs_recycle_debug_level = debug_add_class("recycle");
 660         if (vfs_recycle_debug_level == -1) {
 661                 vfs_recycle_debug_level = DBGC_VFS;
 662                 DEBUG(0, ("vfs_recycle: Couldn't register custom debugging class!\n"));
 663         } else {
 664                 DEBUG(10, ("vfs_recycle: Debug class number of 'recycle': %d\n", vfs_recycle_debug_level));
 665         }
 666
 667         return ret;
 668 }