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         struct smb_filename smb_fname = {
 190                         .base_name = discard_const_p(char, dname)
 191         };
 192
 193         if (SMB_VFS_STAT(handle->conn, &smb_fname) == 0) {
 194                 if (S_ISDIR(smb_fname.st.st_ex_mode)) {
 195                         return True;
 196                 }
 197         }
 198
 199         return False;
 200 }
 201
 202 static bool recycle_file_exist(vfs_handle_struct *handle,
 203                                const struct smb_filename *smb_fname)
 204 {
 205         struct smb_filename *smb_fname_tmp = NULL;
 206         bool ret = false;
 207
 208         smb_fname_tmp = cp_smb_filename(talloc_tos(), smb_fname);
 209         if (smb_fname_tmp == NULL) {
 210                 return false;
 211         }
 212
 213         if (SMB_VFS_STAT(handle->conn, smb_fname_tmp) == 0) {
 214                 if (S_ISREG(smb_fname_tmp->st.st_ex_mode)) {
 215                         ret = true;
 216                 }
 217         }
 218
 219         TALLOC_FREE(smb_fname_tmp);
 220         return ret;
 221 }
 222
 223 /**
 224  * Return file size
 225  * @param conn connection
 226  * @param fname file name
 227  * @return size in bytes
 228  **/
 229 static off_t recycle_get_file_size(vfs_handle_struct *handle,
 230                                        const struct smb_filename *smb_fname)
 231 {
 232         struct smb_filename *smb_fname_tmp = NULL;
 233         off_t size;
 234
 235         smb_fname_tmp = cp_smb_filename(talloc_tos(), smb_fname);
 236         if (smb_fname_tmp == NULL) {
 237                 size = (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 = (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                 if (strlcat(new_dir,"/",len+1) >= len+1) {
 284                         goto done;
 285                 }
 286         }
 287
 288         /* Create directory tree if neccessary */
 289         for(token = strtok_r(tok_str, "/", &saveptr); token;
 290             token = strtok_r(NULL, "/", &saveptr)) {
 291                 if (strlcat(new_dir, token, len+1) >= len+1) {
 292                         goto done;
 293                 }
 294                 if (recycle_directory_exist(handle, new_dir))
 295                         DEBUG(10, ("recycle: dir %s already exists\n", new_dir));
 296                 else {
 297                         struct smb_filename *smb_fname = NULL;
 298                         int retval;
 299
 300                         DEBUG(5, ("recycle: creating new dir %s\n", new_dir));
 301
 302                         smb_fname = synthetic_smb_fname(talloc_tos(),
 303                                                 new_dir,
 304                                                 NULL,
 305                                                 NULL,
 306                                                 0);
 307                         if (smb_fname == NULL) {
 308                                 goto done;
 309                         }
 310
 311                         retval = SMB_VFS_NEXT_MKDIRAT(handle,
 312                                         handle->conn->cwd_fsp,
 313                                         smb_fname,
 314                                         mode);
 315                         if (retval != 0) {
 316                                 DBG_WARNING("recycle: mkdirat failed "
 317                                         "for %s with error: %s\n",
 318                                         new_dir,
 319                                         strerror(errno));
 320                                 TALLOC_FREE(smb_fname);
 321                                 ret = False;
 322                                 goto done;
 323                         }
 324                         TALLOC_FREE(smb_fname);
 325                 }
 326                 if (strlcat(new_dir, "/", len+1) >= len+1) {
 327                         goto done;
 328                 }
 329                 mode = recycle_subdir_mode(handle);
 330         }
 331
 332         ret = True;
 333 done:
 334         SAFE_FREE(tmp_str);
 335         SAFE_FREE(new_dir);
 336         return ret;
 337 }
 338
 339 /**
 340  * Check if any of the components of "exclude_list" are contained in path.
 341  * Return True if found
 342  **/
 343
 344 static bool matchdirparam(const char **dir_exclude_list, char *path)
 345 {
 346         char *startp = NULL, *endp = NULL;
 347
 348         if (dir_exclude_list == NULL || dir_exclude_list[0] == NULL ||
 349                 *dir_exclude_list[0] == '\0' || path == NULL || *path == '\0') {
 350                 return False;
 351         }
 352
 353         /*
 354          * Walk the components of path, looking for matches with the
 355          * exclude list on each component.
 356          */
 357
 358         for (startp = path; startp; startp = endp) {
 359                 int i;
 360
 361                 while (*startp == '/') {
 362                         startp++;
 363                 }
 364                 endp = strchr(startp, '/');
 365                 if (endp) {
 366                         *endp = '\0';
 367                 }
 368
 369                 for(i=0; dir_exclude_list[i] ; i++) {
 370                         if(unix_wild_match(dir_exclude_list[i], startp)) {
 371                                 /* Repair path. */
 372                                 if (endp) {
 373                                         *endp = '/';
 374                                 }
 375                                 return True;
 376                         }
 377                 }
 378
 379                 /* Repair path. */
 380                 if (endp) {
 381                         *endp = '/';
 382                 }
 383         }
 384
 385         return False;
 386 }
 387
 388 /**
 389  * Check if needle is contained in haystack, * and ? patterns are resolved
 390  * @param haystack list of parameters separated by delimimiter character
 391  * @param needle string to be matched exectly to haystack including pattern matching
 392  * @return True if found
 393  **/
 394 static bool matchparam(const char **haystack_list, const char *needle)
 395 {
 396         int i;
 397
 398         if (haystack_list == NULL || haystack_list[0] == NULL ||
 399                 *haystack_list[0] == '\0' || needle == NULL || *needle == '\0') {
 400                 return False;
 401         }
 402
 403         for(i=0; haystack_list[i] ; i++) {
 404                 if(unix_wild_match(haystack_list[i], needle)) {
 405                         return True;
 406                 }
 407         }
 408
 409         return False;
 410 }
 411
 412 /**
 413  * Touch access or modify date
 414  **/
 415 static void recycle_do_touch(vfs_handle_struct *handle,
 416                              const struct smb_filename *smb_fname,
 417                              bool touch_mtime)
 418 {
 419         struct smb_filename *smb_fname_tmp = NULL;
 420         struct smb_file_time ft;
 421         int ret, err;
 422
 423         ZERO_STRUCT(ft);
 424
 425         smb_fname_tmp = cp_smb_filename(talloc_tos(), smb_fname);
 426         if (smb_fname_tmp == NULL) {
 427                 return;
 428         }
 429
 430         if (SMB_VFS_STAT(handle->conn, smb_fname_tmp) != 0) {
 431                 DEBUG(0,("recycle: stat for %s returned %s\n",
 432                          smb_fname_str_dbg(smb_fname_tmp), strerror(errno)));
 433                 goto out;
 434         }
 435         /* atime */
 436         ft.atime = timespec_current();
 437         /* mtime */
 438         ft.mtime = touch_mtime ? ft.atime : smb_fname_tmp->st.st_ex_mtime;
 439
 440         become_root();
 441         ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname_tmp, &ft);
 442         err = errno;
 443         unbecome_root();
 444         if (ret == -1 ) {
 445                 DEBUG(0, ("recycle: touching %s failed, reason = %s\n",
 446                           smb_fname_str_dbg(smb_fname_tmp), strerror(err)));
 447         }
 448  out:
 449         TALLOC_FREE(smb_fname_tmp);
 450 }
 451
 452 /**
 453  * Check if file should be recycled
 454  **/
 455 static int recycle_unlink_internal(vfs_handle_struct *handle,
 456                                 struct files_struct *dirfsp,
 457                                 const struct smb_filename *smb_fname,
 458                                 int flags)
 459 {
 460         connection_struct *conn = handle->conn;
 461         char *path_name = NULL;
 462         char *temp_name = NULL;
 463         char *final_name = NULL;
 464         struct smb_filename *smb_fname_final = NULL;
 465         const char *base;
 466         char *repository = NULL;
 467         int i = 1;
 468         off_t maxsize, minsize;
 469         off_t file_size; /* space_avail;        */
 470         bool exist;
 471         int rc = -1;
 472
 473         repository = talloc_sub_advanced(NULL, lp_servicename(talloc_tos(), SNUM(conn)),
 474                                         conn->session_info->unix_info->unix_name,
 475                                         conn->connectpath,
 476                                         conn->session_info->unix_token->gid,
 477                                         conn->session_info->unix_info->sanitized_username,
 478                                         conn->session_info->info->domain_name,
 479                                         recycle_repository(handle));
 480         ALLOC_CHECK(repository, done);
 481         /* shouldn't we allow absolute path names here? --metze */
 482         /* Yes :-). JRA. */
 483         trim_char(repository, '\0', '/');
 484
 485         if(!repository || *(repository) == '\0') {
 486                 DEBUG(3, ("recycle: repository path not set, purging %s...\n",
 487                           smb_fname_str_dbg(smb_fname)));
 488                 rc = SMB_VFS_NEXT_UNLINKAT(handle,
 489                                         dirfsp,
 490                                         smb_fname,
 491                                         flags);
 492                 goto done;
 493         }
 494
 495         /* we don't recycle the recycle bin... */
 496         if (strncmp(smb_fname->base_name, repository,
 497                     strlen(repository)) == 0) {
 498                 DEBUG(3, ("recycle: File is within recycling bin, unlinking ...\n"));
 499                 rc = SMB_VFS_NEXT_UNLINKAT(handle,
 500                                         dirfsp,
 501                                         smb_fname,
 502                                         flags);
 503                 goto done;
 504         }
 505
 506         file_size = recycle_get_file_size(handle, smb_fname);
 507         /* it is wrong to purge filenames only because they are empty imho
 508          *   --- simo
 509          *
 510         if(fsize == 0) {
 511                 DEBUG(3, ("recycle: File %s is empty, purging...\n", file_name));
 512                 rc = SMB_VFS_NEXT_UNLINKAT(handle,
 513                                         dirfsp,
 514                                         file_name,
 515                                         flags);
 516                 goto done;
 517         }
 518          */
 519
 520         /* FIXME: this is wrong, we should check the whole size of the recycle bin is
 521          * not greater then maxsize, not the size of the single file, also it is better
 522          * to remove older files
 523          */
 524         maxsize = recycle_maxsize(handle);
 525         if(maxsize > 0 && file_size > maxsize) {
 526                 DEBUG(3, ("recycle: File %s exceeds maximum recycle size, "
 527                           "purging... \n", smb_fname_str_dbg(smb_fname)));
 528                 rc = SMB_VFS_NEXT_UNLINKAT(handle,
 529                                         dirfsp,
 530                                         smb_fname,
 531                                         flags);
 532                 goto done;
 533         }
 534         minsize = recycle_minsize(handle);
 535         if(minsize > 0 && file_size < minsize) {
 536                 DEBUG(3, ("recycle: File %s lowers minimum recycle size, "
 537                           "purging... \n", smb_fname_str_dbg(smb_fname)));
 538                 rc = SMB_VFS_NEXT_UNLINKAT(handle,
 539                                         dirfsp,
 540                                         smb_fname,
 541                                         flags);
 542                 goto done;
 543         }
 544
 545         /* FIXME: this is wrong: moving files with rename does not change the disk space
 546          * allocation
 547          *
 548         space_avail = SMB_VFS_NEXT_DISK_FREE(handle, ".", True, &bsize, &dfree, &dsize) * 1024L;
 549         DEBUG(5, ("space_avail = %Lu, file_size = %Lu\n", space_avail, file_size));
 550         if(space_avail < file_size) {
 551                 DEBUG(3, ("recycle: Not enough diskspace, purging file %s\n", file_name));
 552                 rc = SMB_VFS_NEXT_UNLINKAT(handle,
 553                                         dirfsp,
 554                                         file_name,
 555                                         flags);
 556                 goto done;
 557         }
 558          */
 559
 560         /* extract filename and path */
 561         base = strrchr(smb_fname->base_name, '/');
 562         if (base == NULL) {
 563                 base = smb_fname->base_name;
 564                 path_name = SMB_STRDUP("/");
 565                 ALLOC_CHECK(path_name, done);
 566         }
 567         else {
 568                 path_name = SMB_STRDUP(smb_fname->base_name);
 569                 ALLOC_CHECK(path_name, done);
 570                 path_name[base - smb_fname->base_name] = '\0';
 571                 base++;
 572         }
 573
 574         /* original filename with path */
 575         DEBUG(10, ("recycle: fname = %s\n", smb_fname_str_dbg(smb_fname)));
 576         /* original path */
 577         DEBUG(10, ("recycle: fpath = %s\n", path_name));
 578         /* filename without path */
 579         DEBUG(10, ("recycle: base = %s\n", base));
 580
 581         if (matchparam(recycle_exclude(handle), base)) {
 582                 DEBUG(3, ("recycle: file %s is excluded \n", base));
 583                 rc = SMB_VFS_NEXT_UNLINKAT(handle,
 584                                         dirfsp,
 585                                         smb_fname,
 586                                         flags);
 587                 goto done;
 588         }
 589
 590         if (matchdirparam(recycle_exclude_dir(handle), path_name)) {
 591                 DEBUG(3, ("recycle: directory %s is excluded \n", path_name));
 592                 rc = SMB_VFS_NEXT_UNLINKAT(handle,
 593                                         dirfsp,
 594                                         smb_fname,
 595                                         flags);
 596                 goto done;
 597         }
 598
 599         if (recycle_keep_dir_tree(handle) == True) {
 600                 if (asprintf(&temp_name, "%s/%s", repository, path_name) == -1) {
 601                         ALLOC_CHECK(temp_name, done);
 602                 }
 603         } else {
 604                 temp_name = SMB_STRDUP(repository);
 605         }
 606         ALLOC_CHECK(temp_name, done);
 607
 608         exist = recycle_directory_exist(handle, temp_name);
 609         if (exist) {
 610                 DEBUG(10, ("recycle: Directory already exists\n"));
 611         } else {
 612                 DEBUG(10, ("recycle: Creating directory %s\n", temp_name));
 613                 if (recycle_create_dir(handle, temp_name) == False) {
 614                         DEBUG(3, ("recycle: Could not create directory, "
 615                                   "purging %s...\n",
 616                                   smb_fname_str_dbg(smb_fname)));
 617                         rc = SMB_VFS_NEXT_UNLINKAT(handle,
 618                                         dirfsp,
 619                                         smb_fname,
 620                                         flags);
 621                         goto done;
 622                 }
 623         }
 624
 625         if (asprintf(&final_name, "%s/%s", temp_name, base) == -1) {
 626                 ALLOC_CHECK(final_name, done);
 627         }
 628
 629         /* Create smb_fname with final base name and orig stream name. */
 630         smb_fname_final = synthetic_smb_fname(talloc_tos(),
 631                                         final_name,
 632                                         smb_fname->stream_name,
 633                                         NULL,
 634                                         smb_fname->flags);
 635         if (smb_fname_final == NULL) {
 636                 rc = SMB_VFS_NEXT_UNLINKAT(handle,
 637                                         dirfsp,
 638                                         smb_fname,
 639                                         flags);
 640                 goto done;
 641         }
 642
 643         /* new filename with path */
 644         DEBUG(10, ("recycle: recycled file name: %s\n",
 645                    smb_fname_str_dbg(smb_fname_final)));
 646
 647         /* check if we should delete file from recycle bin */
 648         if (recycle_file_exist(handle, smb_fname_final)) {
 649                 if (recycle_versions(handle) == False || matchparam(recycle_noversions(handle), base) == True) {
 650                         DEBUG(3, ("recycle: Removing old file %s from recycle "
 651                                   "bin\n", smb_fname_str_dbg(smb_fname_final)));
 652                         if (SMB_VFS_NEXT_UNLINKAT(handle,
 653                                                 dirfsp,
 654                                                 smb_fname_final,
 655                                                 flags) != 0) {
 656                                 DEBUG(1, ("recycle: Error deleting old file: %s\n", strerror(errno)));
 657                         }
 658                 }
 659         }
 660
 661         /* rename file we move to recycle bin */
 662         i = 1;
 663         while (recycle_file_exist(handle, smb_fname_final)) {
 664                 SAFE_FREE(final_name);
 665                 if (asprintf(&final_name, "%s/Copy #%d of %s", temp_name, i++, base) == -1) {
 666                         ALLOC_CHECK(final_name, done);
 667                 }
 668                 TALLOC_FREE(smb_fname_final->base_name);
 669                 smb_fname_final->base_name = talloc_strdup(smb_fname_final,
 670                                                            final_name);
 671                 if (smb_fname_final->base_name == NULL) {
 672                         rc = SMB_VFS_NEXT_UNLINKAT(handle,
 673                                                 dirfsp,
 674                                                 smb_fname,
 675                                                 flags);
 676                         goto done;
 677                 }
 678         }
 679
 680         DEBUG(10, ("recycle: Moving %s to %s\n", smb_fname_str_dbg(smb_fname),
 681                 smb_fname_str_dbg(smb_fname_final)));
 682         rc = SMB_VFS_NEXT_RENAMEAT(handle,
 683                         handle->conn->cwd_fsp,
 684                         smb_fname,
 685                         handle->conn->cwd_fsp,
 686                         smb_fname_final);
 687         if (rc != 0) {
 688                 DEBUG(3, ("recycle: Move error %d (%s), purging file %s "
 689                           "(%s)\n", errno, strerror(errno),
 690                           smb_fname_str_dbg(smb_fname),
 691                           smb_fname_str_dbg(smb_fname_final)));
 692                 rc = SMB_VFS_NEXT_UNLINKAT(handle,
 693                                 dirfsp,
 694                                 smb_fname,
 695                                 flags);
 696                 goto done;
 697         }
 698
 699         /* touch access date of moved file */
 700         if (recycle_touch(handle) == True || recycle_touch_mtime(handle))
 701                 recycle_do_touch(handle, smb_fname_final,
 702                                  recycle_touch_mtime(handle));
 703
 704 done:
 705         SAFE_FREE(path_name);
 706         SAFE_FREE(temp_name);
 707         SAFE_FREE(final_name);
 708         TALLOC_FREE(smb_fname_final);
 709         TALLOC_FREE(repository);
 710         return rc;
 711 }
 712
 713 static int recycle_unlink(vfs_handle_struct *handle,
 714                                 const struct smb_filename *smb_fname)
 715 {
 716         return recycle_unlink_internal(handle,
 717                                 handle->conn->cwd_fsp,
 718                                 smb_fname,
 719                                 0);
 720 }
 721
 722 static int recycle_unlinkat(vfs_handle_struct *handle,
 723                 struct files_struct *dirfsp,
 724                 const struct smb_filename *smb_fname,
 725                 int flags)
 726 {
 727         int ret;
 728
 729         if (flags & AT_REMOVEDIR) {
 730                 ret = SMB_VFS_NEXT_UNLINKAT(handle,
 731                                         dirfsp,
 732                                         smb_fname,
 733                                         flags);
 734         } else {
 735                 SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
 736                 ret = recycle_unlink_internal(handle,
 737                                         dirfsp,
 738                                         smb_fname,
 739                                         flags);
 740         }
 741         return ret;
 742 }
 743
 744 static struct vfs_fn_pointers vfs_recycle_fns = {
 745         .unlink_fn = recycle_unlink,
 746         .unlinkat_fn = recycle_unlinkat
 747 };
 748
 749 static_decl_vfs;
 750 NTSTATUS vfs_recycle_init(TALLOC_CTX *ctx)
 751 {
 752         NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "recycle",
 753                                         &vfs_recycle_fns);
 754
 755         if (!NT_STATUS_IS_OK(ret))
 756                 return ret;
 757
 758         vfs_recycle_debug_level = debug_add_class("recycle");
 759         if (vfs_recycle_debug_level == -1) {
 760                 vfs_recycle_debug_level = DBGC_VFS;
 761                 DEBUG(0, ("vfs_recycle: Couldn't register custom debugging class!\n"));
 762         } else {
 763                 DEBUG(10, ("vfs_recycle: Debug class number of 'recycle': %d\n", vfs_recycle_debug_level));
 764         }
 765
 766         return ret;
 767 }