source3/modules/vfs_unityed_media.c

   1 /*
   2  * Samba VFS module supporting multiple AVID clients sharing media.
   3  *
   4  * Copyright (C) 2005  Philip de Nier <philipn@users.sourceforge.net>
   5  * Copyright (C) 2012  Andrew Klaassen <clawsoon@yahoo.com>
   6  * Copyright (C) 2013  Milos Lukacek
   7  * Copyright (C) 2013  Ralph Boehme <slow@samba.org>
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * as published by the Free Software Foundation; either version 2
  12  * of the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  22  * 02110-1301, USA.
  23  */
  24
  25 /*
  26  * Unityed Media is a Samba VFS module that allows multiple AVID
  27  * clients to share media.
  28  *
  29  * Add this module to the vfs objects option in your Samba share
  30  * configuration.
  31  * eg.
  32  *
  33  *   [avid_win]
  34  *      path = /video
  35  *      vfs objects = unityed_media
  36  *      ...
  37  *
  38  * It is recommended that you separate out Samba shares for Mac
  39  * and Windows clients, and add the following options to the shares
  40  * for Windows clients  (NOTE: replace @ with *):
  41  *
  42  *      veto files = /.DS_Store/._@/.Trash@/.Spotlight@/.hidden/.hotfiles@/.vol/
  43  *      delete veto files = yes
  44  *
  45  * This prevents hidden files from Mac clients interfering with Windows
  46  * clients. If you find any more problem hidden files then add them to
  47  * the list.
  48  *
  49  * Notes:
  50  * This module is designed to work with AVID editing applications that
  51  * look in the Avid MediaFiles or OMFI MediaFiles directory for media.
  52  * It is not designed to work as expected in all circumstances for
  53  * general use.
  54  */
  55
  56
  57 #include "includes.h"
  58 #include "system/filesys.h"
  59 #include "smbd/smbd.h"
  60 #include "../smbd/globals.h"
  61 #include "auth.h"
  62 #include "../lib/tsocket/tsocket.h"
  63 #include <libgen.h>
  64
  65 #define UM_PARAM_TYPE_NAME "unityed_media"
  66
  67 static const char *AVID_MXF_DIRNAME = "Avid MediaFiles/MXF";
  68 static const size_t AVID_MXF_DIRNAME_LEN = 19;
  69 static const char *OMFI_MEDIAFILES_DIRNAME = "OMFI MediaFiles";
  70 static const size_t OMFI_MEDIAFILES_DIRNAME_LEN = 15;
  71 static const char *APPLE_DOUBLE_PREFIX = "._";
  72 static const size_t APPLE_DOUBLE_PREFIX_LEN = 2;
  73 static int vfs_um_debug_level = DBGC_VFS;
  74
  75 enum um_clientid {UM_CLIENTID_NAME, UM_CLIENTID_IP, UM_CLIENTID_HOSTNAME};
  76
  77 struct um_config_data {
  78         enum um_clientid clientid;
  79 };
  80
  81 static const struct enum_list um_clientid[] = {
  82         {UM_CLIENTID_NAME, "user"},
  83         {UM_CLIENTID_IP, "ip"},
  84         {UM_CLIENTID_HOSTNAME, "hostname"},
  85         {-1, NULL}
  86 };
  87
  88 /* supplements the directory list stream */
  89 typedef struct um_dirinfo_struct {
  90         DIR* dirstream;
  91         char *dirpath;
  92         char *clientPath;
  93         bool isInMediaFiles;
  94         char *clientSubDirname;
  95 } um_dirinfo_struct;
  96
  97 /**
  98  * Returns true and first group of digits in path, false and 0 otherwise
  99  **/
 100 static bool get_digit_group(const char *path, uintmax_t *digit)
 101 {
 102         const char *p = path;
 103         char *endp = NULL;
 104         codepoint_t cp;
 105         size_t size;
 106
 107         DEBUG(10, ("get_digit_group entering with path '%s'\n",
 108                    path));
 109
 110         /*
 111          * Delibiretly initialize to 0 because callers use this result
 112          * even though the string doesn't contain any number and we
 113          * returned false
 114          */
 115         *digit = 0;
 116
 117         while (*p) {
 118                 cp = next_codepoint(p, &size);
 119                 if (cp == -1) {
 120                         return false;
 121                 }
 122                 if ((size == 1) && (isdigit(cp))) {
 123                         *digit = (uintmax_t)strtoul(p, &endp, 10);
 124                         DEBUG(10, ("num_suffix = '%ju'\n",
 125                                    *digit));
 126                         return true;
 127                 }
 128                 p += size;
 129         }
 130
 131         return false;
 132 }
 133
 134 /* Add "_<remote_name>.<number>" suffix to path or filename.
 135  *
 136  * Success: return 0
 137  * Failure: set errno, path NULL, return -1
 138  */
 139
 140 static int alloc_append_client_suffix(vfs_handle_struct *handle,
 141                                       char **path)
 142 {
 143         int status = 0;
 144         uintmax_t number;
 145         const char *clientid;
 146         struct um_config_data *config;
 147
 148         DEBUG(10, ("Entering with path '%s'\n", *path));
 149
 150         SMB_VFS_HANDLE_GET_DATA(handle, config,
 151                                 struct um_config_data,
 152                                 return -1);
 153
 154         (void)get_digit_group(*path, &number);
 155
 156         switch (config->clientid) {
 157
 158         case UM_CLIENTID_IP:
 159                 clientid = tsocket_address_inet_addr_string(
 160                         handle->conn->sconn->remote_address, talloc_tos());
 161                 if (clientid == NULL) {
 162                         errno = ENOMEM;
 163                         status = -1;
 164                         goto err;
 165                 }
 166                 break;
 167
 168         case UM_CLIENTID_HOSTNAME:
 169                 clientid = get_remote_machine_name();
 170                 break;
 171
 172         case UM_CLIENTID_NAME:
 173         default:
 174                 clientid = get_current_username();
 175                 break;
 176         }
 177
 178         *path = talloc_asprintf_append(*path, "_%s.%ju",
 179                                        clientid, number);
 180         if (*path == NULL) {
 181                 DEBUG(1, ("alloc_append_client_suffix "
 182                                      "out of memory\n"));
 183                 errno = ENOMEM;
 184                 status = -1;
 185                 goto err;
 186         }
 187         DEBUG(10, ("Leaving with *path '%s'\n", *path));
 188 err:
 189         return status;
 190 }
 191
 192 /* Returns true if the file or directory begins with the appledouble
 193  * prefix.
 194  */
 195 static bool is_apple_double(const char* fname)
 196 {
 197         bool ret = false;
 198
 199         DEBUG(10, ("Entering with fname '%s'\n", fname));
 200
 201         if (strnequal(APPLE_DOUBLE_PREFIX, fname, APPLE_DOUBLE_PREFIX_LEN)) {
 202                 ret = true;
 203         }
 204         DEBUG(10, ("Leaving with ret '%s'\n",
 205                               ret == true ? "true" : "false"));
 206         return ret;
 207 }
 208
 209 static bool starts_with_media_dir(const char* media_dirname,
 210                                   size_t media_dirname_len,
 211                                   const char *path)
 212 {
 213         bool ret = false;
 214         const char *path_start = path;
 215
 216         DEBUG(10, ("Entering with media_dirname '%s' "
 217                               "path '%s'\n", media_dirname, path));
 218
 219         /* Sometimes Samba gives us "./OMFI MediaFiles". */
 220         if (strnequal(path, "./", 2)) {
 221                 path_start += 2;
 222         }
 223
 224         if (strnequal(media_dirname, path_start, media_dirname_len)
 225             &&
 226             ((path_start[media_dirname_len] == '\0') ||
 227              (path_start[media_dirname_len] == '/'))) {
 228                 ret = true;
 229         }
 230
 231         DEBUG(10, ("Leaving with ret '%s'\n",
 232                               ret == true ? "true" : "false"));
 233         return ret;
 234 }
 235
 236 /*
 237  * Returns true if the file or directory referenced by the path is ONE
 238  * LEVEL below the AVID_MXF_DIRNAME or OMFI_MEDIAFILES_DIRNAME
 239  * directory
 240  */
 241 static bool is_in_media_dir(const char *path)
 242 {
 243         int transition_count = 0;
 244         const char *path_start = path;
 245         const char *p;
 246         const char *media_dirname;
 247         size_t media_dirname_len;
 248
 249         DEBUG(10, ("Entering with path'%s' ", path));
 250
 251         /* Sometimes Samba gives us "./OMFI MediaFiles". */
 252         if (strnequal(path, "./", 2)) {
 253                 path_start += 2;
 254         }
 255
 256         if (strnequal(path_start, AVID_MXF_DIRNAME, AVID_MXF_DIRNAME_LEN)) {
 257                 media_dirname = AVID_MXF_DIRNAME;
 258                 media_dirname_len = AVID_MXF_DIRNAME_LEN;
 259         } else if (strnequal(path_start,
 260                              OMFI_MEDIAFILES_DIRNAME,
 261                              OMFI_MEDIAFILES_DIRNAME_LEN)) {
 262                 media_dirname = OMFI_MEDIAFILES_DIRNAME;
 263                 media_dirname_len = OMFI_MEDIAFILES_DIRNAME_LEN;
 264         } else {
 265                 return false;
 266         }
 267
 268         if (path_start[media_dirname_len] == '\0') {
 269                 goto out;
 270         }
 271
 272         p = path_start + media_dirname_len + 1;
 273
 274         while (true) {
 275                 if (*p == '\0' || *p == '/') {
 276                         if (strnequal(p - 3, "/..", 3)) {
 277                                 transition_count--;
 278                         } else if ((p[-1] != '/') || !strnequal(p - 2, "/.", 2)) {
 279                                 transition_count++;
 280                         }
 281                 }
 282                 if (*p == '\0') {
 283                         break;
 284                 }
 285                 p++;
 286         }
 287
 288 out:
 289         DEBUG(10, ("Going out with transition_count '%i'\n",
 290                               transition_count));
 291         if (((transition_count == 1) && (media_dirname == AVID_MXF_DIRNAME))
 292             ||
 293             ((transition_count == 0) && (media_dirname == OMFI_MEDIAFILES_DIRNAME))) {
 294                 return true;
 295         }
 296         else return false;
 297 }
 298
 299 /*
 300  * Returns true if the file or directory referenced by the path is
 301  * below the AVID_MEDIAFILES_DIRNAME or OMFI_MEDIAFILES_DIRNAME
 302  * directory The AVID_MEDIAFILES_DIRNAME and OMFI_MEDIAFILES_DIRNAME
 303  * are assumed to be in the root directory, which is generally a safe
 304  * assumption in the fixed-path world of Avid.
 305  */
 306 static bool is_in_media_files(const char *path)
 307 {
 308         bool ret = false;
 309
 310         DEBUG(10, ("Entering with path '%s'\n", path));
 311
 312         if (starts_with_media_dir(AVID_MXF_DIRNAME,
 313                                   AVID_MXF_DIRNAME_LEN, path) ||
 314             starts_with_media_dir(OMFI_MEDIAFILES_DIRNAME,
 315                                   OMFI_MEDIAFILES_DIRNAME_LEN, path)) {
 316                 ret = true;
 317         }
 318         DEBUG(10, ("Leaving with ret '%s'\n",
 319                               ret == true ? "true" : "false"));
 320         return ret;
 321 }
 322
 323
 324 /* Add client suffix to "pure-number" path.
 325  *
 326  * Caller must free newPath.
 327  *
 328  * Success: return 0
 329  * Failure: set errno, newPath NULL, return -1
 330  */
 331 static int alloc_get_client_path(vfs_handle_struct *handle,
 332                                  TALLOC_CTX *ctx,
 333                                  const char *path_in,
 334                                  char **path_out)
 335 {
 336         int status = 0;
 337         char *p;
 338         char *digits;
 339         size_t digits_len;
 340         uintmax_t number;
 341
 342         *path_out = talloc_strdup(ctx, path_in);
 343         if (*path_out == NULL) {
 344                 DEBUG(1, ("alloc_get_client_path ENOMEM\n"));
 345                 return -1;
 346         }
 347
 348         (void)get_digit_group(*path_out, &number);
 349
 350         digits = talloc_asprintf(NULL, "%ju", number);
 351         if (digits == NULL) {
 352                 DEBUG(1, ("alloc_get_client_path ENOMEM\n"));
 353                 return -1;
 354         }
 355         digits_len = strlen(digits);
 356
 357         p = strstr_m(path_in, digits);
 358         if ((p)
 359             &&
 360             ((p[digits_len] == '\0') || (p[digits_len] == '/'))
 361             &&
 362             (((p - path_in > 0) && (p[-1] == '/'))
 363              ||
 364              (((p - path_in) > APPLE_DOUBLE_PREFIX_LEN)
 365               &&
 366               is_apple_double(p - APPLE_DOUBLE_PREFIX_LEN)
 367               &&
 368               (p[-(APPLE_DOUBLE_PREFIX_LEN + 1)] == '/'))))
 369         {
 370                 (*path_out)[p - path_in + digits_len] = '\0';
 371
 372                 status = alloc_append_client_suffix(handle, path_out);
 373                 if (status != 0) {
 374                         goto out;
 375                 }
 376
 377                 *path_out = talloc_strdup_append(*path_out, p + digits_len);
 378                 if (*path_out == NULL) {
 379                         DEBUG(1, ("alloc_get_client_path ENOMEM\n"));
 380                         status = -1;
 381                         goto out;
 382                 }
 383         }
 384 out:
 385         /* path_out must be freed in caller. */
 386         DEBUG(10, ("Result:'%s'\n", *path_out));
 387         return status;
 388 }
 389
 390 /*
 391  * Success: return 0
 392  * Failure: set errno, return -1
 393  */
 394 static int alloc_get_client_smb_fname(struct vfs_handle_struct *handle,
 395                                       TALLOC_CTX *ctx,
 396                                       const struct smb_filename *smb_fname,
 397                                       struct smb_filename **client_fname)
 398 {
 399         int status ;
 400
 401         DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
 402                    smb_fname->base_name));
 403
 404         *client_fname = cp_smb_filename(ctx, smb_fname);
 405         if (*client_fname == NULL) {
 406                 DEBUG(1, ("cp_smb_filename returned NULL\n"));
 407                 return -1;
 408         }
 409         status = alloc_get_client_path(handle, ctx,
 410                                        smb_fname->base_name,
 411                                        &(*client_fname)->base_name);
 412         if (status != 0) {
 413                 return -1;
 414         }
 415
 416         DEBUG(10, ("Leaving with (*client_fname)->base_name "
 417                    "'%s'\n", (*client_fname)->base_name));
 418
 419         return 0;
 420 }
 421
 422
 423 /*
 424  * Success: return 0
 425  * Failure: set errno, return -1
 426  */
 427 static int alloc_set_client_dirinfo_path(struct vfs_handle_struct *handle,
 428                                          TALLOC_CTX *ctx,
 429                                          char **path,
 430                                          const char *suffix_number)
 431 {
 432         int status;
 433
 434         DEBUG(10, ("Entering with suffix_number '%s'\n",
 435                    suffix_number));
 436
 437         *path = talloc_strdup(ctx, suffix_number);
 438         if (*path == NULL) {
 439                 DEBUG(1, ("alloc_set_client_dirinfo_path ENOMEM\n"));
 440                 return -1;
 441         }
 442         status = alloc_append_client_suffix(handle, path);
 443         if (status != 0) {
 444                 return -1;
 445         }
 446
 447         DEBUG(10, ("Leaving with *path '%s'\n", *path));
 448
 449         return 0;
 450 }
 451
 452 static int alloc_set_client_dirinfo(vfs_handle_struct *handle,
 453                                     const char *fname,
 454                                     struct um_dirinfo_struct **di_result)
 455 {
 456         int status = 0;
 457         char *digits;
 458         uintmax_t number;
 459         struct um_dirinfo_struct *dip;
 460
 461         DEBUG(10, ("Entering with fname '%s'\n", fname));
 462
 463         *di_result = talloc(NULL, struct um_dirinfo_struct);
 464         if (*di_result == NULL) {
 465                 goto err;
 466         }
 467         dip = *di_result;
 468
 469         dip->dirpath = talloc_strdup(dip, fname);
 470         if (dip->dirpath == NULL) {
 471                 goto err;
 472         }
 473
 474         if (!is_in_media_files(fname)) {
 475                 dip->isInMediaFiles = false;
 476                 dip->clientPath = NULL;
 477                 dip->clientSubDirname = NULL;
 478                 goto out;
 479         }
 480
 481         dip->isInMediaFiles = true;
 482
 483         (void)get_digit_group(fname, &number);
 484         digits = talloc_asprintf(talloc_tos(), "%ju", number);
 485         if (digits == NULL) {
 486                 goto err;
 487         }
 488
 489         status = alloc_set_client_dirinfo_path(handle, dip,
 490                                                &dip->clientSubDirname,
 491                                                digits);
 492         if (status != 0) {
 493                 goto err;
 494         }
 495
 496         status = alloc_get_client_path(handle, dip, fname,
 497                                        &dip->clientPath);
 498         if (status != 0 || dip->clientPath == NULL) {
 499                 goto err;
 500         }
 501
 502 out:
 503         DEBUG(10, ("Leaving with (*dirInfo)->dirpath '%s', "
 504                               "(*dirInfo)->clientPath '%s'\n",
 505                               dip->dirpath, dip->clientPath));
 506         return status;
 507
 508 err:
 509         DEBUG(1, ("Failing with fname '%s'\n", fname));
 510         TALLOC_FREE(*di_result);
 511         status = -1;
 512         errno = ENOMEM;
 513         return status;
 514 }
 515
 516 /**********************************************************************
 517  * VFS functions
 518  **********************************************************************/
 519
 520 /*
 521  * Success: return 0
 522  * Failure: set errno, return -1
 523  */
 524 static int um_statvfs(struct vfs_handle_struct *handle,
 525                       const char *path,
 526                       struct vfs_statvfs_struct *statbuf)
 527 {
 528         int status;
 529         char *clientPath = NULL;
 530
 531         DEBUG(10, ("Entering with path '%s'\n", path));
 532
 533         if (!is_in_media_files(path)) {
 534                 return SMB_VFS_NEXT_STATVFS(handle, path, statbuf);
 535         }
 536
 537         status = alloc_get_client_path(handle, talloc_tos(),
 538                                        path, &clientPath);
 539         if (status != 0) {
 540                 goto err;
 541         }
 542
 543         status = SMB_VFS_NEXT_STATVFS(handle, clientPath, statbuf);
 544 err:
 545         TALLOC_FREE(clientPath);
 546         DEBUG(10, ("Leaving with path '%s'\n", path));
 547         return status;
 548 }
 549
 550 /* Success: return a um_dirinfo_struct cast as a DIR
 551  * Failure: set errno, return NULL
 552  */
 553 static DIR *um_opendir(vfs_handle_struct *handle,
 554                        const struct smb_filename *smb_fname,
 555                        const char *mask,
 556                        uint32_t attr)
 557 {
 558         struct um_dirinfo_struct *dirInfo;
 559
 560         DEBUG(10, ("Entering with fname '%s'\n", smb_fname->base_name));
 561
 562         if (alloc_set_client_dirinfo(handle, smb_fname->base_name, &dirInfo)) {
 563                 goto err;
 564         }
 565
 566         if (!dirInfo->isInMediaFiles) {
 567                 dirInfo->dirstream = SMB_VFS_NEXT_OPENDIR(
 568                         handle, smb_fname, mask, attr);
 569         } else {
 570                 struct smb_filename *client_smb_fname =
 571                         synthetic_smb_fname(talloc_tos(),
 572                                         dirInfo->clientPath,
 573                                         NULL,
 574                                         NULL);
 575                 if (client_smb_fname == NULL) {
 576                         goto err;
 577                 }
 578
 579                 dirInfo->dirstream = SMB_VFS_NEXT_OPENDIR(
 580                         handle, client_smb_fname, mask, attr);
 581
 582                 TALLOC_FREE(client_smb_fname);
 583         }
 584
 585         if (dirInfo->dirstream == NULL) {
 586                 goto err;
 587         }
 588
 589         DEBUG(10, ("Leaving with dirInfo->dirpath '%s', "
 590                               "dirInfo->clientPath '%s'\n",
 591                               dirInfo->dirpath,
 592                               dirInfo->clientPath));
 593         return (DIR*)dirInfo;
 594
 595 err:
 596         DEBUG(1, ("Failing with fname '%s'\n", smb_fname->base_name));
 597         TALLOC_FREE(dirInfo);
 598         return NULL;
 599 }
 600
 601 static DIR *um_fdopendir(vfs_handle_struct *handle,
 602                          files_struct *fsp,
 603                          const char *mask,
 604                          uint32_t attr)
 605 {
 606         struct um_dirinfo_struct *dirInfo = NULL;
 607         DIR *dirstream;
 608
 609         DEBUG(10, ("Entering with fsp->fsp_name->base_name '%s'\n",
 610                    fsp->fsp_name->base_name));
 611
 612         dirstream = SMB_VFS_NEXT_FDOPENDIR(handle, fsp, mask, attr);
 613         if (!dirstream) {
 614                 goto err;
 615         }
 616
 617         if (alloc_set_client_dirinfo(handle,
 618                                      fsp->fsp_name->base_name,
 619                                      &dirInfo)) {
 620                 goto err;
 621         }
 622
 623         dirInfo->dirstream = dirstream;
 624
 625         if (!dirInfo->isInMediaFiles) {
 626                 /*
 627                  * FIXME: this is the original code, something must be
 628                  * missing here, but what? -slow
 629                  */
 630                 goto out;
 631         }
 632
 633 out:
 634         DEBUG(10, ("Leaving with dirInfo->dirpath '%s', "
 635                    "dirInfo->clientPath '%s', "
 636                    "fsp->fsp_name->st.st_ex_mtime %s",
 637                    dirInfo->dirpath,
 638                    dirInfo->clientPath,
 639                    ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec))));
 640         return (DIR *) dirInfo;
 641
 642 err:
 643         DEBUG(1, ("Failing with fsp->fsp_name->base_name '%s'\n",
 644                   fsp->fsp_name->base_name));
 645         TALLOC_FREE(dirInfo);
 646         return NULL;
 647 }
 648
 649 /*
 650  * skip own suffixed directory
 651  * replace own suffixed directory with non suffixed.
 652  *
 653  * Success: return dirent
 654  * End of data: return NULL
 655  * Failure: set errno, return NULL
 656  */
 657 static struct dirent *um_readdir(vfs_handle_struct *handle,
 658                                  DIR *dirp,
 659                                  SMB_STRUCT_STAT *sbuf)
 660 {
 661         um_dirinfo_struct* dirInfo = (um_dirinfo_struct*)dirp;
 662         struct dirent *d = NULL;
 663         int skip;
 664
 665         DEBUG(10, ("dirInfo->dirpath '%s', "
 666                    "dirInfo->clientPath '%s', "
 667                    "dirInfo->isInMediaFiles '%s', "
 668                    "dirInfo->clientSubDirname '%s'\n",
 669                    dirInfo->dirpath,
 670                    dirInfo->clientPath,
 671                    dirInfo->isInMediaFiles ? "true" : "false",
 672                    dirInfo->clientSubDirname));
 673
 674         if (!dirInfo->isInMediaFiles) {
 675                 return SMB_VFS_NEXT_READDIR(handle, dirInfo->dirstream, sbuf);
 676         }
 677
 678         do {
 679                 const char* dname;
 680                 bool isAppleDouble;
 681                 char *digits;
 682                 size_t digits_len;
 683                 uintmax_t number;
 684
 685                 skip = false;
 686                 d = SMB_VFS_NEXT_READDIR(handle, dirInfo->dirstream, sbuf);
 687
 688                 if (d == NULL) {
 689                         break;
 690                 }
 691
 692                 /* ignore apple double prefix for logic below */
 693                 if (is_apple_double(d->d_name)) {
 694                         dname = &d->d_name[APPLE_DOUBLE_PREFIX_LEN];
 695                         isAppleDouble = true;
 696                 } else {
 697                         dname = d->d_name;
 698                         isAppleDouble = false;
 699                 }
 700
 701                 DEBUG(10, ("dname = '%s'\n", dname));
 702
 703                 (void)get_digit_group(dname, &number);
 704                 digits = talloc_asprintf(talloc_tos(), "%ju", number);
 705                 if (digits == NULL) {
 706                         DEBUG(1, ("out of memory"));
 707                         goto err;
 708                 }
 709                 digits_len = strlen(digits);
 710
 711                 if (alloc_set_client_dirinfo_path(handle,
 712                                                   dirInfo,
 713                                                   &((dirInfo)->clientSubDirname),
 714                                                   digits)) {
 715                         goto err;
 716                 }
 717
 718                 /*
 719                  * If set to "true", vfs shows digits-only
 720                  * non-suffixed subdirectories.  Normally, such
 721                  * subdirectories can exists only in non-media
 722                  * directories, so we set it to "false".  Otherwise,
 723                  * if we have such subdirectories (probably created
 724                  * over not "unityed" connection), it can be little
 725                  * bit confusing.
 726                  */
 727                 if (strequal(dname, digits)) {
 728                         skip = false;
 729                 } else if (strequal(dname, dirInfo->clientSubDirname)) {
 730                         /*
 731                          * Remove suffix of this client's suffixed
 732                          * subdirectories
 733                          */
 734                         if (isAppleDouble) {
 735                                 d->d_name[digits_len + APPLE_DOUBLE_PREFIX_LEN] = '\0';
 736                         } else {
 737                                 d->d_name[digits_len] = '\0';
 738                         }
 739                 } else if (strnequal(digits, dname, digits_len)) {
 740                         /*
 741                          * Set to false to see another clients subdirectories
 742                          */
 743                         skip = false;
 744                 }
 745         } while (skip);
 746
 747         DEBUG(10, ("Leaving um_readdir\n"));
 748         return d;
 749 err:
 750         TALLOC_FREE(dirInfo);
 751         return NULL;
 752 }
 753
 754 static void um_seekdir(vfs_handle_struct *handle,
 755                        DIR *dirp,
 756                        long offset)
 757 {
 758         DEBUG(10, ("Entering and leaving um_seekdir\n"));
 759         SMB_VFS_NEXT_SEEKDIR(handle,
 760                              ((um_dirinfo_struct*)dirp)->dirstream, offset);
 761 }
 762
 763 static long um_telldir(vfs_handle_struct *handle,
 764                        DIR *dirp)
 765 {
 766         DEBUG(10, ("Entering and leaving um_telldir\n"));
 767         return SMB_VFS_NEXT_TELLDIR(handle,
 768                                     ((um_dirinfo_struct*)dirp)->dirstream);
 769 }
 770
 771 static void um_rewinddir(vfs_handle_struct *handle,
 772                          DIR *dirp)
 773 {
 774         DEBUG(10, ("Entering and leaving um_rewinddir\n"));
 775         SMB_VFS_NEXT_REWINDDIR(handle,
 776                                ((um_dirinfo_struct*)dirp)->dirstream);
 777 }
 778
 779 static int um_mkdir(vfs_handle_struct *handle,
 780                     const struct smb_filename *smb_fname,
 781                     mode_t mode)
 782 {
 783         int status;
 784         const char *path = smb_fname->base_name;
 785         struct smb_filename *client_fname = NULL;
 786
 787         DEBUG(10, ("Entering with path '%s'\n", path));
 788
 789         if (!is_in_media_files(path) || !is_in_media_dir(path)) {
 790                 return SMB_VFS_NEXT_MKDIR(handle, smb_fname, mode);
 791         }
 792
 793         status = alloc_get_client_smb_fname(handle,
 794                                 talloc_tos(),
 795                                 smb_fname,
 796                                 &client_fname);
 797         if (status != 0) {
 798                 goto err;
 799         }
 800
 801         status = SMB_VFS_NEXT_MKDIR(handle, client_fname, mode);
 802 err:
 803         TALLOC_FREE(client_fname);
 804         DEBUG(10, ("Leaving with path '%s'\n", path));
 805         return status;
 806 }
 807
 808 static int um_rmdir(vfs_handle_struct *handle,
 809                     const struct smb_filename *smb_fname)
 810 {
 811         int status;
 812         const char *path = smb_fname->base_name;
 813         struct smb_filename *client_fname = NULL;
 814
 815         DEBUG(10, ("Entering with path '%s'\n", path));
 816
 817         if (!is_in_media_files(path)) {
 818                 return SMB_VFS_NEXT_RMDIR(handle, smb_fname);
 819         }
 820
 821         status = alloc_get_client_smb_fname(handle,
 822                                 talloc_tos(),
 823                                 smb_fname,
 824                                 &client_fname);
 825         if (status != 0) {
 826                 goto err;
 827         }
 828
 829         status = SMB_VFS_NEXT_RMDIR(handle, client_fname);
 830 err:
 831         TALLOC_FREE(client_fname);
 832         DEBUG(10, ("Leaving with path '%s'\n", path));
 833         return status;
 834 }
 835
 836 static int um_closedir(vfs_handle_struct *handle,
 837                        DIR *dirp)
 838 {
 839         DIR *realdirp = ((um_dirinfo_struct*)dirp)->dirstream;
 840
 841         TALLOC_FREE(dirp);
 842
 843         return SMB_VFS_NEXT_CLOSEDIR(handle, realdirp);
 844 }
 845
 846 static void um_init_search_op(vfs_handle_struct *handle,
 847                               DIR *dirp)
 848 {
 849         DEBUG(10, ("Entering and leaving um_init_search_op\n"));
 850
 851         SMB_VFS_NEXT_INIT_SEARCH_OP(handle,
 852                                     ((um_dirinfo_struct*)dirp)->dirstream);
 853 }
 854
 855 static int um_open(vfs_handle_struct *handle,
 856                    struct smb_filename *smb_fname,
 857                    files_struct *fsp,
 858                    int flags,
 859                    mode_t mode)
 860 {
 861         int ret;
 862         struct smb_filename *client_fname = NULL;
 863
 864         DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
 865                               smb_fname->base_name));
 866
 867         if (!is_in_media_files(smb_fname->base_name)) {
 868                 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
 869         }
 870
 871         if (alloc_get_client_smb_fname(handle, talloc_tos(),
 872                                        smb_fname,
 873                                        &client_fname)) {
 874                 ret = -1;
 875                 goto err;
 876         }
 877
 878         /*
 879          * FIXME:
 880          * What about fsp->fsp_name?  We also have to get correct stat
 881          * info into fsp and smb_fname for DB files, don't we?
 882          */
 883
 884         DEBUG(10, ("Leaving with smb_fname->base_name '%s' "
 885                    "smb_fname->st.st_ex_mtime %s"
 886                    "fsp->fsp_name->st.st_ex_mtime %s",
 887                               smb_fname->base_name,
 888                               ctime(&(smb_fname->st.st_ex_mtime.tv_sec)),
 889                               ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec))));
 890
 891         ret = SMB_VFS_NEXT_OPEN(handle, client_fname, fsp, flags, mode);
 892 err:
 893         TALLOC_FREE(client_fname);
 894         DEBUG(10, ("Leaving with smb_fname->base_name '%s'\n",
 895                               smb_fname->base_name));
 896         return ret;
 897 }
 898
 899 static NTSTATUS um_create_file(vfs_handle_struct *handle,
 900                                struct smb_request *req,
 901                                uint16_t root_dir_fid,
 902                                struct smb_filename *smb_fname,
 903                                uint32_t access_mask,
 904                                uint32_t share_access,
 905                                uint32_t create_disposition,
 906                                uint32_t create_options,
 907                                uint32_t file_attributes,
 908                                uint32_t oplock_request,
 909                                struct smb2_lease *lease,
 910                                uint64_t allocation_size,
 911                                uint32_t private_flags,
 912                                struct security_descriptor *sd,
 913                                struct ea_list *ea_list,
 914                                files_struct **result_fsp,
 915                                int *pinfo,
 916                                const struct smb2_create_blobs *in_context_blobs,
 917                                struct smb2_create_blobs *out_context_blobs)
 918 {
 919         NTSTATUS status;
 920         struct smb_filename *client_fname = NULL;
 921
 922         DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
 923                    smb_fname->base_name));
 924
 925         if (!is_in_media_files(smb_fname->base_name)) {
 926                 return SMB_VFS_NEXT_CREATE_FILE(
 927                         handle,
 928                         req,
 929                         root_dir_fid,
 930                         smb_fname,
 931                         access_mask,
 932                         share_access,
 933                         create_disposition,
 934                         create_options,
 935                         file_attributes,
 936                         oplock_request,
 937                         lease,
 938                         allocation_size,
 939                         private_flags,
 940                         sd,
 941                         ea_list,
 942                         result_fsp,
 943                         pinfo,
 944                         in_context_blobs,
 945                         out_context_blobs);
 946         }
 947
 948         if (alloc_get_client_smb_fname(handle, talloc_tos(),
 949                                        smb_fname,
 950                                        &client_fname)) {
 951                 status = map_nt_error_from_unix(errno);
 952                 goto err;
 953         }
 954
 955         /*
 956          * FIXME:
 957          * This only creates files, so we don't have to worry about
 958          * our fake directory stat'ing here.  But we still need to
 959          * route stat calls for DB files properly, right?
 960          */
 961         status = SMB_VFS_NEXT_CREATE_FILE(
 962                 handle,
 963                 req,
 964                 root_dir_fid,
 965                 client_fname,
 966                 access_mask,
 967                 share_access,
 968                 create_disposition,
 969                 create_options,
 970                 file_attributes,
 971                 oplock_request,
 972                 lease,
 973                 allocation_size,
 974                 private_flags,
 975                 sd,
 976                 ea_list,
 977                 result_fsp,
 978                 pinfo,
 979                 in_context_blobs,
 980                 out_context_blobs);
 981 err:
 982         TALLOC_FREE(client_fname);
 983         DEBUG(10, ("Leaving with smb_fname->base_name '%s'"
 984                    "smb_fname->st.st_ex_mtime %s"
 985                    " fsp->fsp_name->st.st_ex_mtime %s",
 986                    smb_fname->base_name,
 987                    ctime(&(smb_fname->st.st_ex_mtime.tv_sec)),
 988                    (*result_fsp) && VALID_STAT((*result_fsp)->fsp_name->st) ?
 989                    ctime(&((*result_fsp)->fsp_name->st.st_ex_mtime.tv_sec)) :
 990                    "No fsp time\n"));
 991         return status;
 992 }
 993
 994 static int um_rename(vfs_handle_struct *handle,
 995                      const struct smb_filename *smb_fname_src,
 996                      const struct smb_filename *smb_fname_dst)
 997 {
 998         int status;
 999         struct smb_filename *src_client_fname = NULL;
1000         struct smb_filename *dst_client_fname = NULL;
1001
1002         DEBUG(10, ("Entering with "
1003                    "smb_fname_src->base_name '%s', "
1004                    "smb_fname_dst->base_name '%s'\n",
1005                    smb_fname_src->base_name,
1006                    smb_fname_dst->base_name));
1007
1008         if (!is_in_media_files(smb_fname_src->base_name)
1009             &&
1010             !is_in_media_files(smb_fname_dst->base_name)) {
1011                 return SMB_VFS_NEXT_RENAME(handle, smb_fname_src,
1012                                            smb_fname_dst);
1013         }
1014
1015         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1016                                             smb_fname_src,
1017                                             &src_client_fname);
1018         if (status != 0) {
1019                 goto err;
1020         }
1021
1022         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1023                                             smb_fname_dst,
1024                                             &dst_client_fname);
1025
1026         if (status != 0) {
1027                 goto err;
1028         }
1029
1030         status = SMB_VFS_NEXT_RENAME(handle, src_client_fname,
1031                                      dst_client_fname);
1032 err:
1033         TALLOC_FREE(dst_client_fname);
1034         TALLOC_FREE(src_client_fname);
1035         DEBUG(10, ("Leaving with smb_fname_src->base_name '%s',"
1036                    " smb_fname_dst->base_name '%s'\n",
1037                    smb_fname_src->base_name,
1038                    smb_fname_dst->base_name));
1039         return status;
1040 }
1041
1042 /*
1043  * Success: return 0
1044  * Failure: set errno, return -1
1045  */
1046 static int um_stat(vfs_handle_struct *handle,
1047                    struct smb_filename *smb_fname)
1048 {
1049         int status = 0;
1050         struct smb_filename *client_fname = NULL;
1051
1052         DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
1053                    smb_fname->base_name));
1054
1055         if (!is_in_media_files(smb_fname->base_name)) {
1056                 return SMB_VFS_NEXT_STAT(handle, smb_fname);
1057         }
1058
1059         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1060                                             smb_fname,
1061                                             &client_fname);
1062         if (status != 0) {
1063                 goto err;
1064         }
1065         DEBUG(10, ("Stat'ing client_fname->base_name '%s'\n",
1066                    client_fname->base_name));
1067
1068         status = SMB_VFS_NEXT_STAT(handle, client_fname);
1069         if (status != 0) {
1070                 goto err;
1071         }
1072
1073         /*
1074          * Unlike functions with const smb_filename, we have to modify
1075          * smb_fname itself to pass our info back up.
1076          */
1077         DEBUG(10, ("Setting smb_fname '%s' stat from client_fname '%s'\n",
1078                    smb_fname->base_name, client_fname->base_name));
1079         smb_fname->st = client_fname->st;
1080
1081 err:
1082         TALLOC_FREE(client_fname);
1083         DEBUG(10, ("Leaving with smb_fname->st.st_ex_mtime %s",
1084                    ctime(&(smb_fname->st.st_ex_mtime.tv_sec))));
1085         return status;
1086 }
1087
1088 static int um_lstat(vfs_handle_struct *handle,
1089                     struct smb_filename *smb_fname)
1090 {
1091         int status = 0;
1092         struct smb_filename *client_fname = NULL;
1093
1094         DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
1095                    smb_fname->base_name));
1096
1097         if (!is_in_media_files(smb_fname->base_name)) {
1098                 return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
1099         }
1100
1101         client_fname = NULL;
1102
1103         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1104                                             smb_fname,
1105                                             &client_fname);
1106         if (status != 0) {
1107                 goto err;
1108         }
1109         status = SMB_VFS_NEXT_LSTAT(handle, client_fname);
1110         if (status != 0) {
1111                 goto err;
1112         }
1113
1114         smb_fname->st = client_fname->st;
1115
1116 err:
1117         TALLOC_FREE(client_fname);
1118         DEBUG(10, ("Leaving with smb_fname->st.st_ex_mtime %s",
1119                    ctime(&(smb_fname->st.st_ex_mtime.tv_sec))));
1120         return status;
1121 }
1122
1123 static int um_fstat(vfs_handle_struct *handle,
1124                     files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1125 {
1126         int status = 0;
1127
1128         DEBUG(10, ("Entering with fsp->fsp_name->base_name "
1129                    "'%s'\n", fsp_str_dbg(fsp)));
1130
1131         status = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
1132         if (status != 0) {
1133                 goto out;
1134         }
1135
1136         if ((fsp->fsp_name == NULL) ||
1137             !is_in_media_files(fsp->fsp_name->base_name)) {
1138                 goto out;
1139         }
1140
1141         status = um_stat(handle, fsp->fsp_name);
1142         if (status != 0) {
1143                 goto out;
1144         }
1145
1146         *sbuf = fsp->fsp_name->st;
1147
1148 out:
1149         DEBUG(10, ("Leaving with fsp->fsp_name->st.st_ex_mtime %s\n",
1150                    fsp->fsp_name != NULL ?
1151                    ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec)) : "0"));
1152         return status;
1153 }
1154
1155 static int um_unlink(vfs_handle_struct *handle,
1156                      const struct smb_filename *smb_fname)
1157 {
1158         int status;
1159         struct smb_filename *client_fname = NULL;
1160
1161         DEBUG(10, ("Entering um_unlink\n"));
1162
1163         if (!is_in_media_files(smb_fname->base_name)) {
1164                 return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
1165         }
1166
1167         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1168                                             smb_fname,
1169                                             &client_fname);
1170         if (status != 0) {
1171                 goto err;
1172         }
1173
1174         status = SMB_VFS_NEXT_UNLINK(handle, client_fname);
1175
1176 err:
1177         TALLOC_FREE(client_fname);
1178         return status;
1179 }
1180
1181 static int um_chmod(vfs_handle_struct *handle,
1182                         const struct smb_filename *smb_fname,
1183                         mode_t mode)
1184 {
1185         int status;
1186         struct smb_filename *client_fname = NULL;
1187
1188         DEBUG(10, ("Entering um_chmod\n"));
1189
1190         if (!is_in_media_files(smb_fname->base_name)) {
1191                 return SMB_VFS_NEXT_CHMOD(handle, smb_fname, mode);
1192         }
1193
1194         status = alloc_get_client_smb_fname(handle,
1195                                 talloc_tos(),
1196                                 smb_fname,
1197                                 &client_fname);
1198         if (status != 0) {
1199                 goto err;
1200         }
1201
1202         status = SMB_VFS_NEXT_CHMOD(handle, client_fname, mode);
1203
1204 err:
1205         TALLOC_FREE(client_fname);
1206         return status;
1207 }
1208
1209 static int um_chown(vfs_handle_struct *handle,
1210                         const struct smb_filename *smb_fname,
1211                         uid_t uid,
1212                         gid_t gid)
1213 {
1214         int status;
1215         struct smb_filename *client_fname = NULL;
1216
1217         DEBUG(10, ("Entering um_chown\n"));
1218
1219         if (!is_in_media_files(smb_fname->base_name)) {
1220                 return SMB_VFS_NEXT_CHOWN(handle, smb_fname, uid, gid);
1221         }
1222
1223         status = alloc_get_client_smb_fname(handle,
1224                                 talloc_tos(),
1225                                 smb_fname,
1226                                 &client_fname);
1227         if (status != 0) {
1228                 goto err;
1229         }
1230
1231         status = SMB_VFS_NEXT_CHOWN(handle, client_fname, uid, gid);
1232
1233 err:
1234         TALLOC_FREE(client_fname);
1235         return status;
1236 }
1237
1238 static int um_lchown(vfs_handle_struct *handle,
1239                         const struct smb_filename *smb_fname,
1240                         uid_t uid,
1241                         gid_t gid)
1242 {
1243         int status;
1244         struct smb_filename *client_fname = NULL;
1245
1246         DEBUG(10, ("Entering um_lchown\n"));
1247         if (!is_in_media_files(smb_fname->base_name)) {
1248                 return SMB_VFS_NEXT_LCHOWN(handle, smb_fname, uid, gid);
1249         }
1250
1251         status = alloc_get_client_smb_fname(handle,
1252                                 talloc_tos(),
1253                                 smb_fname,
1254                                 &client_fname);
1255         if (status != 0) {
1256                 goto err;
1257         }
1258
1259         status = SMB_VFS_NEXT_LCHOWN(handle, client_fname, uid, gid);
1260
1261 err:
1262         TALLOC_FREE(client_fname);
1263         return status;
1264 }
1265
1266 static int um_chdir(vfs_handle_struct *handle,
1267                     const char *path)
1268 {
1269         int status;
1270         char *client_path = NULL;
1271
1272         DEBUG(10, ("Entering um_chdir\n"));
1273
1274         if (!is_in_media_files(path)) {
1275                 return SMB_VFS_NEXT_CHDIR(handle, path);
1276         }
1277
1278         status = alloc_get_client_path(handle, talloc_tos(),
1279                                        path, &client_path);
1280         if (status != 0) {
1281                 goto err;
1282         }
1283
1284         status = SMB_VFS_NEXT_CHDIR(handle, client_path);
1285
1286 err:
1287         TALLOC_FREE(client_path);
1288         return status;
1289 }
1290
1291 static int um_ntimes(vfs_handle_struct *handle,
1292                      const struct smb_filename *smb_fname,
1293                      struct smb_file_time *ft)
1294 {
1295         int status;
1296         struct smb_filename *client_fname = NULL;
1297
1298         DEBUG(10, ("Entering um_ntimes\n"));
1299
1300         if (!is_in_media_files(smb_fname->base_name)) {
1301                 return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
1302         }
1303
1304         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1305                                             smb_fname, &client_fname);
1306         if (status != 0) {
1307                 goto err;
1308         }
1309
1310         status = SMB_VFS_NEXT_NTIMES(handle, client_fname, ft);
1311
1312 err:
1313         TALLOC_FREE(client_fname);
1314         return status;
1315 }
1316
1317 static int um_symlink(vfs_handle_struct *handle,
1318                       const char *oldpath,
1319                       const char *newpath)
1320 {
1321         int status;
1322         char *old_client_path = NULL;
1323         char *new_client_path = NULL;
1324
1325         DEBUG(10, ("Entering um_symlink\n"));
1326
1327         if (!is_in_media_files(oldpath) && !is_in_media_files(newpath)) {
1328                 return SMB_VFS_NEXT_SYMLINK(handle, oldpath, newpath);
1329         }
1330
1331         status = alloc_get_client_path(handle, talloc_tos(),
1332                                        oldpath, &old_client_path);
1333         if (status != 0) {
1334                 goto err;
1335         }
1336
1337         status = alloc_get_client_path(handle, talloc_tos(),
1338                                        newpath, &new_client_path);
1339         if (status != 0) {
1340                 goto err;
1341         }
1342
1343         status = SMB_VFS_NEXT_SYMLINK(handle,
1344                                       old_client_path,
1345                                       new_client_path);
1346
1347 err:
1348         TALLOC_FREE(new_client_path);
1349         TALLOC_FREE(old_client_path);
1350         return status;
1351 }
1352
1353 static int um_readlink(vfs_handle_struct *handle,
1354                        const char *path,
1355                        char *buf,
1356                        size_t bufsiz)
1357 {
1358         int status;
1359         char *client_path = NULL;
1360
1361         DEBUG(10, ("Entering um_readlink\n"));
1362
1363         if (!is_in_media_files(path)) {
1364                 return SMB_VFS_NEXT_READLINK(handle, path, buf, bufsiz);
1365         }
1366
1367         status = alloc_get_client_path(handle, talloc_tos(),
1368                                        path, &client_path);
1369         if (status != 0) {
1370                 goto err;
1371         }
1372
1373         status = SMB_VFS_NEXT_READLINK(handle, client_path, buf, bufsiz);
1374
1375 err:
1376         TALLOC_FREE(client_path);
1377         return status;
1378 }
1379
1380 static int um_link(vfs_handle_struct *handle,
1381                    const char *oldpath,
1382                    const char *newpath)
1383 {
1384         int status;
1385         char *old_client_path = NULL;
1386         char *new_client_path = NULL;
1387
1388         DEBUG(10, ("Entering um_link\n"));
1389         if (!is_in_media_files(oldpath) && !is_in_media_files(newpath)) {
1390                 return SMB_VFS_NEXT_LINK(handle, oldpath, newpath);
1391         }
1392
1393         status = alloc_get_client_path(handle, talloc_tos(),
1394                                        oldpath, &old_client_path);
1395         if (status != 0) {
1396                 goto err;
1397         }
1398
1399         status = alloc_get_client_path(handle, talloc_tos(),
1400                                        newpath, &new_client_path);
1401         if (status != 0) {
1402                 goto err;
1403         }
1404
1405         status = SMB_VFS_NEXT_LINK(handle, old_client_path, new_client_path);
1406
1407 err:
1408         TALLOC_FREE(new_client_path);
1409         TALLOC_FREE(old_client_path);
1410         return status;
1411 }
1412
1413 static int um_mknod(vfs_handle_struct *handle,
1414                     const char *pathname,
1415                     mode_t mode,
1416                     SMB_DEV_T dev)
1417 {
1418         int status;
1419         char *client_path = NULL;
1420
1421         DEBUG(10, ("Entering um_mknod\n"));
1422         if (!is_in_media_files(pathname)) {
1423                 return SMB_VFS_NEXT_MKNOD(handle, pathname, mode, dev);
1424         }
1425
1426         status = alloc_get_client_path(handle, talloc_tos(),
1427                                        pathname, &client_path);
1428         if (status != 0) {
1429                 goto err;
1430         }
1431
1432         status = SMB_VFS_NEXT_MKNOD(handle, client_path, mode, dev);
1433
1434 err:
1435         TALLOC_FREE(client_path);
1436         return status;
1437 }
1438
1439 static char *um_realpath(vfs_handle_struct *handle,
1440                          const char *path)
1441 {
1442         char *buf = NULL;
1443         char *client_path = NULL;
1444         int status;
1445
1446         DEBUG(10, ("Entering um_realpath\n"));
1447
1448         if (!is_in_media_files(path)) {
1449                 return SMB_VFS_NEXT_REALPATH(handle, path);
1450         }
1451
1452         status = alloc_get_client_path(handle, talloc_tos(),
1453                                        path, &client_path);
1454         if (status != 0) {
1455                 goto err;
1456         }
1457
1458         buf = SMB_VFS_NEXT_REALPATH(handle, client_path);
1459
1460 err:
1461         TALLOC_FREE(client_path);
1462         return buf;
1463 }
1464
1465 static int um_chflags(vfs_handle_struct *handle,
1466                       const char *path,
1467                       unsigned int flags)
1468 {
1469         int status;
1470         char *client_path = NULL;
1471
1472         DEBUG(10, ("Entering um_chflags\n"));
1473
1474         if (!is_in_media_files(path)) {
1475                 return SMB_VFS_NEXT_CHFLAGS(handle, path, flags);
1476         }
1477
1478         status = alloc_get_client_path(handle, talloc_tos(),
1479                                        path, &client_path);
1480         if (status != 0) {
1481                 goto err;
1482         }
1483
1484         status = SMB_VFS_NEXT_CHFLAGS(handle, client_path, flags);
1485 err:
1486         TALLOC_FREE(client_path);
1487         return status;
1488 }
1489
1490 static NTSTATUS um_streaminfo(struct vfs_handle_struct *handle,
1491                               struct files_struct *fsp,
1492                               const char *fname,
1493                               TALLOC_CTX *ctx,
1494                               unsigned int *num_streams,
1495                               struct stream_struct **streams)
1496 {
1497         NTSTATUS status;
1498         char *client_path = NULL;
1499         int ret;
1500
1501         DEBUG(10, ("Entering um_streaminfo\n"));
1502
1503         if (!is_in_media_files(fname)) {
1504                 return SMB_VFS_NEXT_STREAMINFO(handle, fsp, fname,
1505                                                ctx, num_streams, streams);
1506         }
1507
1508         ret = alloc_get_client_path(handle, talloc_tos(),
1509                                     fname, &client_path);
1510         if (ret != 0) {
1511                 status = map_nt_error_from_unix(errno);
1512                 goto err;
1513         }
1514
1515         /*
1516          * This only works on files, so we don't have to worry about
1517          * our fake directory stat'ing here.  But what does this
1518          * function do, exactly?  Does it need extra modifications for
1519          * the Avid stuff?
1520          */
1521         status = SMB_VFS_NEXT_STREAMINFO(handle, fsp, client_path,
1522                                          ctx, num_streams, streams);
1523 err:
1524         TALLOC_FREE(client_path);
1525         return status;
1526 }
1527
1528 /*
1529  * Ignoring get_real_filename function because the default doesn't do
1530  * anything.
1531  */
1532
1533 static NTSTATUS um_get_nt_acl(vfs_handle_struct *handle,
1534                               const struct smb_filename *smb_fname,
1535                               uint32_t security_info,
1536                               TALLOC_CTX *mem_ctx,
1537                               struct security_descriptor **ppdesc)
1538 {
1539         NTSTATUS status;
1540         char *client_path = NULL;
1541         struct smb_filename *client_smb_fname = NULL;
1542         int ret;
1543
1544         DEBUG(10, ("Entering um_get_nt_acl\n"));
1545
1546         if (!is_in_media_files(smb_fname->base_name)) {
1547                 return SMB_VFS_NEXT_GET_NT_ACL(handle, smb_fname,
1548                                                security_info,
1549                                                mem_ctx, ppdesc);
1550         }
1551
1552         ret = alloc_get_client_path(handle, talloc_tos(),
1553                                     smb_fname->base_name, &client_path);
1554         if (ret != 0) {
1555                 status = map_nt_error_from_unix(errno);
1556                 goto err;
1557         }
1558
1559         client_smb_fname = synthetic_smb_fname(talloc_tos(),
1560                                         client_path,
1561                                         NULL,
1562                                         NULL);
1563         if (client_smb_fname == NULL) {
1564                 TALLOC_FREE(client_path);
1565                 return NT_STATUS_NO_MEMORY;
1566         }
1567
1568         status = SMB_VFS_NEXT_GET_NT_ACL(handle, client_smb_fname,
1569                                          security_info,
1570                                          mem_ctx, ppdesc);
1571 err:
1572         TALLOC_FREE(client_smb_fname);
1573         TALLOC_FREE(client_path);
1574         return status;
1575 }
1576
1577 static int um_chmod_acl(vfs_handle_struct *handle,
1578                         const struct smb_filename *smb_fname,
1579                         mode_t mode)
1580 {
1581         int status;
1582         int saved_errno;
1583         struct smb_filename *client_fname = NULL;
1584
1585         DEBUG(10, ("Entering um_chmod_acl\n"));
1586
1587         if (!is_in_media_files(smb_fname->base_name)) {
1588                 return SMB_VFS_NEXT_CHMOD_ACL(handle, smb_fname, mode);
1589         }
1590
1591         status = alloc_get_client_smb_fname(handle,
1592                                 talloc_tos(),
1593                                 smb_fname,
1594                                 &client_fname);
1595         if (status != 0) {
1596                 goto err;
1597         }
1598         status = SMB_VFS_NEXT_CHMOD_ACL(handle, client_fname, mode);
1599
1600 err:
1601         saved_errno = errno;
1602         TALLOC_FREE(client_fname);
1603         errno = saved_errno;
1604         return status;
1605 }
1606
1607 static SMB_ACL_T um_sys_acl_get_file(vfs_handle_struct *handle,
1608                                      const char *path_p,
1609                                      SMB_ACL_TYPE_T type,
1610                                      TALLOC_CTX *mem_ctx)
1611 {
1612         SMB_ACL_T ret;
1613         char *client_path = NULL;
1614         int status;
1615
1616         DEBUG(10, ("Entering um_sys_acl_get_file\n"));
1617
1618         if (!is_in_media_files(path_p)) {
1619                 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, path_p,
1620                                                      type, mem_ctx);
1621         }
1622
1623         status = alloc_get_client_path(handle, talloc_tos(),
1624                                        path_p, &client_path);
1625         if (status != 0) {
1626                 ret = NULL;
1627                 goto err;
1628         }
1629
1630         ret = SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, client_path, type, mem_ctx);
1631
1632 err:
1633         TALLOC_FREE(client_path);
1634         return ret;
1635 }
1636
1637 static int um_sys_acl_set_file(vfs_handle_struct *handle,
1638                                const char *name,
1639                                SMB_ACL_TYPE_T acltype,
1640                                SMB_ACL_T theacl)
1641 {
1642         int status;
1643         char *client_path = NULL;
1644
1645         DEBUG(10, ("Entering um_sys_acl_set_file\n"));
1646
1647         if (!is_in_media_files(name)) {
1648                 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, name,
1649                                                      acltype, theacl);
1650         }
1651
1652         status = alloc_get_client_path(handle, talloc_tos(),
1653                                        name, &client_path);
1654         if (status != 0) {
1655                 goto err;
1656         }
1657
1658         status = SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, client_path,
1659                                                acltype, theacl);
1660
1661 err:
1662         TALLOC_FREE(client_path);
1663         return status;
1664 }
1665
1666 static int um_sys_acl_delete_def_file(vfs_handle_struct *handle,
1667                                       const char *path)
1668 {
1669         int status;
1670         char *client_path = NULL;
1671
1672         DEBUG(10, ("Entering um_sys_acl_delete_def_file\n"));
1673
1674         if (!is_in_media_files(path)) {
1675                 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, path);
1676         }
1677
1678         status = alloc_get_client_path(handle, talloc_tos(),
1679                                             path, &client_path);
1680         if (status != 0) {
1681                 goto err;
1682         }
1683
1684         status = SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, client_path);
1685
1686 err:
1687         TALLOC_FREE(client_path);
1688         return status;
1689 }
1690
1691 static ssize_t um_getxattr(struct vfs_handle_struct *handle,
1692                            const char *path,
1693                            const char *name,
1694                            void *value,
1695                            size_t size)
1696 {
1697         ssize_t ret;
1698         char *client_path = NULL;
1699         int status;
1700
1701         DEBUG(10, ("Entering um_getxattr\n"));
1702         if (!is_in_media_files(path)) {
1703                 return SMB_VFS_NEXT_GETXATTR(handle, path, name, value, size);
1704         }
1705
1706         status = alloc_get_client_path(handle, talloc_tos(),
1707                                        path, &client_path);
1708         if (status != 0) {
1709                 ret = -1;
1710                 goto err;
1711         }
1712
1713         ret = SMB_VFS_NEXT_GETXATTR(handle, client_path, name, value, size);
1714 err:
1715         TALLOC_FREE(client_path);
1716         return ret;
1717 }
1718
1719 static ssize_t um_listxattr(struct vfs_handle_struct *handle,
1720                             const char *path,
1721                             char *list,
1722                             size_t size)
1723 {
1724         ssize_t ret;
1725         char *client_path = NULL;
1726         int status;
1727
1728         DEBUG(10, ("Entering um_listxattr\n"));
1729
1730         if (!is_in_media_files(path)) {
1731                 return SMB_VFS_NEXT_LISTXATTR(handle, path, list, size);
1732         }
1733
1734         status = alloc_get_client_path(handle, talloc_tos(),
1735                                        path, &client_path);
1736         if (status != 0) {
1737                 ret = -1;
1738                 goto err;
1739         }
1740
1741         ret = SMB_VFS_NEXT_LISTXATTR(handle, client_path, list, size);
1742
1743 err:
1744         TALLOC_FREE(client_path);
1745         return ret;
1746 }
1747
1748 static int um_removexattr(struct vfs_handle_struct *handle,
1749                           const char *path,
1750                           const char *name)
1751 {
1752         int status;
1753         char *client_path = NULL;
1754
1755         DEBUG(10, ("Entering um_removexattr\n"));
1756
1757         if (!is_in_media_files(path)) {
1758                 return SMB_VFS_NEXT_REMOVEXATTR(handle, path, name);
1759         }
1760
1761         status = alloc_get_client_path(handle, talloc_tos(),
1762                                        path, &client_path);
1763         if (status != 0) {
1764                 goto err;
1765         }
1766
1767         status = SMB_VFS_NEXT_REMOVEXATTR(handle, client_path, name);
1768
1769 err:
1770         TALLOC_FREE(client_path);
1771         return status;
1772 }
1773
1774 static int um_setxattr(struct vfs_handle_struct *handle,
1775                        const char *path,
1776                        const char *name,
1777                        const void *value,
1778                        size_t size,
1779                        int flags)
1780 {
1781         int status;
1782         char *client_path = NULL;
1783
1784         DEBUG(10, ("Entering um_setxattr\n"));
1785
1786         if (!is_in_media_files(path)) {
1787                 return SMB_VFS_NEXT_SETXATTR(handle, path, name, value,
1788                                              size, flags);
1789         }
1790
1791         status = alloc_get_client_path(handle, talloc_tos(),
1792                                        path, &client_path);
1793         if (status != 0) {
1794                 goto err;
1795         }
1796
1797         status = SMB_VFS_NEXT_SETXATTR(handle, client_path, name, value,
1798                                        size, flags);
1799
1800 err:
1801         TALLOC_FREE(client_path);
1802         return status;
1803 }
1804
1805 static bool um_is_offline(struct vfs_handle_struct *handle,
1806                           const struct smb_filename *fname,
1807                           SMB_STRUCT_STAT *sbuf)
1808 {
1809         bool ret;
1810         struct smb_filename *client_fname = NULL;
1811         int status;
1812
1813         DEBUG(10, ("Entering um_is_offline\n"));
1814
1815         if (!is_in_media_files(fname->base_name)) {
1816                 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1817         }
1818
1819         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1820                                             fname, &client_fname);
1821         if (status != 0) {
1822                 ret = false;
1823                 goto err;
1824         }
1825
1826         ret = SMB_VFS_NEXT_IS_OFFLINE(handle, client_fname, sbuf);
1827
1828 err:
1829         TALLOC_FREE(client_fname);
1830         return ret;
1831 }
1832
1833 static int um_set_offline(struct vfs_handle_struct *handle,
1834                           const struct smb_filename *fname)
1835 {
1836         int status;
1837         struct smb_filename *client_fname = NULL;
1838
1839         DEBUG(10, ("Entering um_set_offline\n"));
1840
1841         if (!is_in_media_files(fname->base_name)) {
1842                 return SMB_VFS_NEXT_SET_OFFLINE(handle, fname);
1843         }
1844
1845         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1846                                             fname, &client_fname);
1847         if (status != 0) {
1848                 goto err;
1849         }
1850
1851         status = SMB_VFS_NEXT_SET_OFFLINE(handle, client_fname);
1852
1853 err:
1854         TALLOC_FREE(client_fname);
1855         return status;
1856 }
1857
1858 static int um_connect(vfs_handle_struct *handle,
1859                          const char *service,
1860                          const char *user)
1861 {
1862         int rc;
1863         struct um_config_data *config;
1864         int enumval;
1865
1866         rc = SMB_VFS_NEXT_CONNECT(handle, service, user);
1867         if (rc != 0) {
1868                 return rc;
1869         }
1870
1871         config = talloc_zero(handle->conn, struct um_config_data);
1872         if (!config) {
1873                 DEBUG(1, ("talloc_zero() failed\n"));
1874                 errno = ENOMEM;
1875                 return -1;
1876         }
1877
1878         enumval = lp_parm_enum(SNUM(handle->conn), UM_PARAM_TYPE_NAME,
1879                                "clientid", um_clientid, UM_CLIENTID_NAME);
1880         if (enumval == -1) {
1881                 DEBUG(1, ("value for %s: type unknown\n",
1882                           UM_PARAM_TYPE_NAME));
1883                 return -1;
1884         }
1885         config->clientid = (enum um_clientid)enumval;
1886
1887         SMB_VFS_HANDLE_SET_DATA(handle, config,
1888                                 NULL, struct um_config_data,
1889                                 return -1);
1890
1891         return 0;
1892 }
1893
1894 /* VFS operations structure */
1895
1896 static struct vfs_fn_pointers vfs_um_fns = {
1897         .connect_fn = um_connect,
1898
1899         /* Disk operations */
1900
1901         .statvfs_fn = um_statvfs,
1902
1903         /* Directory operations */
1904
1905         .opendir_fn = um_opendir,
1906         .fdopendir_fn = um_fdopendir,
1907         .readdir_fn = um_readdir,
1908         .seekdir_fn = um_seekdir,
1909         .telldir_fn = um_telldir,
1910         .rewind_dir_fn = um_rewinddir,
1911         .mkdir_fn = um_mkdir,
1912         .rmdir_fn = um_rmdir,
1913         .closedir_fn = um_closedir,
1914         .init_search_op_fn = um_init_search_op,
1915
1916         /* File operations */
1917
1918         .open_fn = um_open,
1919         .create_file_fn = um_create_file,
1920         .rename_fn = um_rename,
1921         .stat_fn = um_stat,
1922         .lstat_fn = um_lstat,
1923         .fstat_fn = um_fstat,
1924         .unlink_fn = um_unlink,
1925         .chmod_fn = um_chmod,
1926         .chown_fn = um_chown,
1927         .lchown_fn = um_lchown,
1928         .chdir_fn = um_chdir,
1929         .ntimes_fn = um_ntimes,
1930         .symlink_fn = um_symlink,
1931         .readlink_fn = um_readlink,
1932         .link_fn = um_link,
1933         .mknod_fn = um_mknod,
1934         .realpath_fn = um_realpath,
1935         .chflags_fn = um_chflags,
1936         .streaminfo_fn = um_streaminfo,
1937
1938         /* NT ACL operations. */
1939
1940         .get_nt_acl_fn = um_get_nt_acl,
1941
1942         /* POSIX ACL operations. */
1943
1944         .chmod_acl_fn = um_chmod_acl,
1945
1946         .sys_acl_get_file_fn = um_sys_acl_get_file,
1947         .sys_acl_set_file_fn = um_sys_acl_set_file,
1948         .sys_acl_delete_def_file_fn = um_sys_acl_delete_def_file,
1949
1950         /* EA operations. */
1951         .getxattr_fn = um_getxattr,
1952         .listxattr_fn = um_listxattr,
1953         .removexattr_fn = um_removexattr,
1954         .setxattr_fn = um_setxattr,
1955
1956         /* aio operations */
1957
1958         /* offline operations */
1959         .is_offline_fn = um_is_offline,
1960         .set_offline_fn = um_set_offline
1961 };
1962
1963 NTSTATUS vfs_unityed_media_init(void);
1964 NTSTATUS vfs_unityed_media_init(void)
1965 {
1966         NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
1967                                         "unityed_media", &vfs_um_fns);
1968         if (!NT_STATUS_IS_OK(ret)) {
1969                 return ret;
1970         }
1971
1972         vfs_um_debug_level = debug_add_class("unityed_media");
1973
1974         if (vfs_um_debug_level == -1) {
1975                 vfs_um_debug_level = DBGC_VFS;
1976                 DEBUG(1, ("unityed_media_init: Couldn't register custom "
1977                           "debugging class.\n"));
1978         }
1979
1980         return ret;
1981 }