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                                         smb_fname->flags);
 576                 if (client_smb_fname == NULL) {
 577                         goto err;
 578                 }
 579
 580                 dirInfo->dirstream = SMB_VFS_NEXT_OPENDIR(
 581                         handle, client_smb_fname, mask, attr);
 582
 583                 TALLOC_FREE(client_smb_fname);
 584         }
 585
 586         if (dirInfo->dirstream == NULL) {
 587                 goto err;
 588         }
 589
 590         DEBUG(10, ("Leaving with dirInfo->dirpath '%s', "
 591                               "dirInfo->clientPath '%s'\n",
 592                               dirInfo->dirpath,
 593                               dirInfo->clientPath));
 594         return (DIR*)dirInfo;
 595
 596 err:
 597         DEBUG(1, ("Failing with fname '%s'\n", smb_fname->base_name));
 598         TALLOC_FREE(dirInfo);
 599         return NULL;
 600 }
 601
 602 static DIR *um_fdopendir(vfs_handle_struct *handle,
 603                          files_struct *fsp,
 604                          const char *mask,
 605                          uint32_t attr)
 606 {
 607         struct um_dirinfo_struct *dirInfo = NULL;
 608         DIR *dirstream;
 609
 610         DEBUG(10, ("Entering with fsp->fsp_name->base_name '%s'\n",
 611                    fsp->fsp_name->base_name));
 612
 613         dirstream = SMB_VFS_NEXT_FDOPENDIR(handle, fsp, mask, attr);
 614         if (!dirstream) {
 615                 goto err;
 616         }
 617
 618         if (alloc_set_client_dirinfo(handle,
 619                                      fsp->fsp_name->base_name,
 620                                      &dirInfo)) {
 621                 goto err;
 622         }
 623
 624         dirInfo->dirstream = dirstream;
 625
 626         if (!dirInfo->isInMediaFiles) {
 627                 /*
 628                  * FIXME: this is the original code, something must be
 629                  * missing here, but what? -slow
 630                  */
 631                 goto out;
 632         }
 633
 634 out:
 635         DEBUG(10, ("Leaving with dirInfo->dirpath '%s', "
 636                    "dirInfo->clientPath '%s', "
 637                    "fsp->fsp_name->st.st_ex_mtime %s",
 638                    dirInfo->dirpath,
 639                    dirInfo->clientPath,
 640                    ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec))));
 641         return (DIR *) dirInfo;
 642
 643 err:
 644         DEBUG(1, ("Failing with fsp->fsp_name->base_name '%s'\n",
 645                   fsp->fsp_name->base_name));
 646         TALLOC_FREE(dirInfo);
 647         return NULL;
 648 }
 649
 650 /*
 651  * skip own suffixed directory
 652  * replace own suffixed directory with non suffixed.
 653  *
 654  * Success: return dirent
 655  * End of data: return NULL
 656  * Failure: set errno, return NULL
 657  */
 658 static struct dirent *um_readdir(vfs_handle_struct *handle,
 659                                  DIR *dirp,
 660                                  SMB_STRUCT_STAT *sbuf)
 661 {
 662         um_dirinfo_struct* dirInfo = (um_dirinfo_struct*)dirp;
 663         struct dirent *d = NULL;
 664         int skip;
 665
 666         DEBUG(10, ("dirInfo->dirpath '%s', "
 667                    "dirInfo->clientPath '%s', "
 668                    "dirInfo->isInMediaFiles '%s', "
 669                    "dirInfo->clientSubDirname '%s'\n",
 670                    dirInfo->dirpath,
 671                    dirInfo->clientPath,
 672                    dirInfo->isInMediaFiles ? "true" : "false",
 673                    dirInfo->clientSubDirname));
 674
 675         if (!dirInfo->isInMediaFiles) {
 676                 return SMB_VFS_NEXT_READDIR(handle, dirInfo->dirstream, sbuf);
 677         }
 678
 679         do {
 680                 const char* dname;
 681                 bool isAppleDouble;
 682                 char *digits;
 683                 size_t digits_len;
 684                 uintmax_t number;
 685
 686                 skip = false;
 687                 d = SMB_VFS_NEXT_READDIR(handle, dirInfo->dirstream, sbuf);
 688
 689                 if (d == NULL) {
 690                         break;
 691                 }
 692
 693                 /* ignore apple double prefix for logic below */
 694                 if (is_apple_double(d->d_name)) {
 695                         dname = &d->d_name[APPLE_DOUBLE_PREFIX_LEN];
 696                         isAppleDouble = true;
 697                 } else {
 698                         dname = d->d_name;
 699                         isAppleDouble = false;
 700                 }
 701
 702                 DEBUG(10, ("dname = '%s'\n", dname));
 703
 704                 (void)get_digit_group(dname, &number);
 705                 digits = talloc_asprintf(talloc_tos(), "%ju", number);
 706                 if (digits == NULL) {
 707                         DEBUG(1, ("out of memory"));
 708                         goto err;
 709                 }
 710                 digits_len = strlen(digits);
 711
 712                 if (alloc_set_client_dirinfo_path(handle,
 713                                                   dirInfo,
 714                                                   &((dirInfo)->clientSubDirname),
 715                                                   digits)) {
 716                         goto err;
 717                 }
 718
 719                 /*
 720                  * If set to "true", vfs shows digits-only
 721                  * non-suffixed subdirectories.  Normally, such
 722                  * subdirectories can exists only in non-media
 723                  * directories, so we set it to "false".  Otherwise,
 724                  * if we have such subdirectories (probably created
 725                  * over not "unityed" connection), it can be little
 726                  * bit confusing.
 727                  */
 728                 if (strequal(dname, digits)) {
 729                         skip = false;
 730                 } else if (strequal(dname, dirInfo->clientSubDirname)) {
 731                         /*
 732                          * Remove suffix of this client's suffixed
 733                          * subdirectories
 734                          */
 735                         if (isAppleDouble) {
 736                                 d->d_name[digits_len + APPLE_DOUBLE_PREFIX_LEN] = '\0';
 737                         } else {
 738                                 d->d_name[digits_len] = '\0';
 739                         }
 740                 } else if (strnequal(digits, dname, digits_len)) {
 741                         /*
 742                          * Set to false to see another clients subdirectories
 743                          */
 744                         skip = false;
 745                 }
 746         } while (skip);
 747
 748         DEBUG(10, ("Leaving um_readdir\n"));
 749         return d;
 750 err:
 751         TALLOC_FREE(dirInfo);
 752         return NULL;
 753 }
 754
 755 static void um_seekdir(vfs_handle_struct *handle,
 756                        DIR *dirp,
 757                        long offset)
 758 {
 759         DEBUG(10, ("Entering and leaving um_seekdir\n"));
 760         SMB_VFS_NEXT_SEEKDIR(handle,
 761                              ((um_dirinfo_struct*)dirp)->dirstream, offset);
 762 }
 763
 764 static long um_telldir(vfs_handle_struct *handle,
 765                        DIR *dirp)
 766 {
 767         DEBUG(10, ("Entering and leaving um_telldir\n"));
 768         return SMB_VFS_NEXT_TELLDIR(handle,
 769                                     ((um_dirinfo_struct*)dirp)->dirstream);
 770 }
 771
 772 static void um_rewinddir(vfs_handle_struct *handle,
 773                          DIR *dirp)
 774 {
 775         DEBUG(10, ("Entering and leaving um_rewinddir\n"));
 776         SMB_VFS_NEXT_REWINDDIR(handle,
 777                                ((um_dirinfo_struct*)dirp)->dirstream);
 778 }
 779
 780 static int um_mkdir(vfs_handle_struct *handle,
 781                     const struct smb_filename *smb_fname,
 782                     mode_t mode)
 783 {
 784         int status;
 785         const char *path = smb_fname->base_name;
 786         struct smb_filename *client_fname = NULL;
 787
 788         DEBUG(10, ("Entering with path '%s'\n", path));
 789
 790         if (!is_in_media_files(path) || !is_in_media_dir(path)) {
 791                 return SMB_VFS_NEXT_MKDIR(handle, smb_fname, mode);
 792         }
 793
 794         status = alloc_get_client_smb_fname(handle,
 795                                 talloc_tos(),
 796                                 smb_fname,
 797                                 &client_fname);
 798         if (status != 0) {
 799                 goto err;
 800         }
 801
 802         status = SMB_VFS_NEXT_MKDIR(handle, client_fname, mode);
 803 err:
 804         TALLOC_FREE(client_fname);
 805         DEBUG(10, ("Leaving with path '%s'\n", path));
 806         return status;
 807 }
 808
 809 static int um_rmdir(vfs_handle_struct *handle,
 810                     const struct smb_filename *smb_fname)
 811 {
 812         int status;
 813         const char *path = smb_fname->base_name;
 814         struct smb_filename *client_fname = NULL;
 815
 816         DEBUG(10, ("Entering with path '%s'\n", path));
 817
 818         if (!is_in_media_files(path)) {
 819                 return SMB_VFS_NEXT_RMDIR(handle, smb_fname);
 820         }
 821
 822         status = alloc_get_client_smb_fname(handle,
 823                                 talloc_tos(),
 824                                 smb_fname,
 825                                 &client_fname);
 826         if (status != 0) {
 827                 goto err;
 828         }
 829
 830         status = SMB_VFS_NEXT_RMDIR(handle, client_fname);
 831 err:
 832         TALLOC_FREE(client_fname);
 833         DEBUG(10, ("Leaving with path '%s'\n", path));
 834         return status;
 835 }
 836
 837 static int um_closedir(vfs_handle_struct *handle,
 838                        DIR *dirp)
 839 {
 840         DIR *realdirp = ((um_dirinfo_struct*)dirp)->dirstream;
 841
 842         TALLOC_FREE(dirp);
 843
 844         return SMB_VFS_NEXT_CLOSEDIR(handle, realdirp);
 845 }
 846
 847 static void um_init_search_op(vfs_handle_struct *handle,
 848                               DIR *dirp)
 849 {
 850         DEBUG(10, ("Entering and leaving um_init_search_op\n"));
 851
 852         SMB_VFS_NEXT_INIT_SEARCH_OP(handle,
 853                                     ((um_dirinfo_struct*)dirp)->dirstream);
 854 }
 855
 856 static int um_open(vfs_handle_struct *handle,
 857                    struct smb_filename *smb_fname,
 858                    files_struct *fsp,
 859                    int flags,
 860                    mode_t mode)
 861 {
 862         int ret;
 863         struct smb_filename *client_fname = NULL;
 864
 865         DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
 866                               smb_fname->base_name));
 867
 868         if (!is_in_media_files(smb_fname->base_name)) {
 869                 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
 870         }
 871
 872         if (alloc_get_client_smb_fname(handle, talloc_tos(),
 873                                        smb_fname,
 874                                        &client_fname)) {
 875                 ret = -1;
 876                 goto err;
 877         }
 878
 879         /*
 880          * FIXME:
 881          * What about fsp->fsp_name?  We also have to get correct stat
 882          * info into fsp and smb_fname for DB files, don't we?
 883          */
 884
 885         DEBUG(10, ("Leaving with smb_fname->base_name '%s' "
 886                    "smb_fname->st.st_ex_mtime %s"
 887                    "fsp->fsp_name->st.st_ex_mtime %s",
 888                               smb_fname->base_name,
 889                               ctime(&(smb_fname->st.st_ex_mtime.tv_sec)),
 890                               ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec))));
 891
 892         ret = SMB_VFS_NEXT_OPEN(handle, client_fname, fsp, flags, mode);
 893 err:
 894         TALLOC_FREE(client_fname);
 895         DEBUG(10, ("Leaving with smb_fname->base_name '%s'\n",
 896                               smb_fname->base_name));
 897         return ret;
 898 }
 899
 900 static NTSTATUS um_create_file(vfs_handle_struct *handle,
 901                                struct smb_request *req,
 902                                uint16_t root_dir_fid,
 903                                struct smb_filename *smb_fname,
 904                                uint32_t access_mask,
 905                                uint32_t share_access,
 906                                uint32_t create_disposition,
 907                                uint32_t create_options,
 908                                uint32_t file_attributes,
 909                                uint32_t oplock_request,
 910                                struct smb2_lease *lease,
 911                                uint64_t allocation_size,
 912                                uint32_t private_flags,
 913                                struct security_descriptor *sd,
 914                                struct ea_list *ea_list,
 915                                files_struct **result_fsp,
 916                                int *pinfo,
 917                                const struct smb2_create_blobs *in_context_blobs,
 918                                struct smb2_create_blobs *out_context_blobs)
 919 {
 920         NTSTATUS status;
 921         struct smb_filename *client_fname = NULL;
 922
 923         DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
 924                    smb_fname->base_name));
 925
 926         if (!is_in_media_files(smb_fname->base_name)) {
 927                 return SMB_VFS_NEXT_CREATE_FILE(
 928                         handle,
 929                         req,
 930                         root_dir_fid,
 931                         smb_fname,
 932                         access_mask,
 933                         share_access,
 934                         create_disposition,
 935                         create_options,
 936                         file_attributes,
 937                         oplock_request,
 938                         lease,
 939                         allocation_size,
 940                         private_flags,
 941                         sd,
 942                         ea_list,
 943                         result_fsp,
 944                         pinfo,
 945                         in_context_blobs,
 946                         out_context_blobs);
 947         }
 948
 949         if (alloc_get_client_smb_fname(handle, talloc_tos(),
 950                                        smb_fname,
 951                                        &client_fname)) {
 952                 status = map_nt_error_from_unix(errno);
 953                 goto err;
 954         }
 955
 956         /*
 957          * FIXME:
 958          * This only creates files, so we don't have to worry about
 959          * our fake directory stat'ing here.  But we still need to
 960          * route stat calls for DB files properly, right?
 961          */
 962         status = SMB_VFS_NEXT_CREATE_FILE(
 963                 handle,
 964                 req,
 965                 root_dir_fid,
 966                 client_fname,
 967                 access_mask,
 968                 share_access,
 969                 create_disposition,
 970                 create_options,
 971                 file_attributes,
 972                 oplock_request,
 973                 lease,
 974                 allocation_size,
 975                 private_flags,
 976                 sd,
 977                 ea_list,
 978                 result_fsp,
 979                 pinfo,
 980                 in_context_blobs,
 981                 out_context_blobs);
 982 err:
 983         TALLOC_FREE(client_fname);
 984         DEBUG(10, ("Leaving with smb_fname->base_name '%s'"
 985                    "smb_fname->st.st_ex_mtime %s"
 986                    " fsp->fsp_name->st.st_ex_mtime %s",
 987                    smb_fname->base_name,
 988                    ctime(&(smb_fname->st.st_ex_mtime.tv_sec)),
 989                    (*result_fsp) && VALID_STAT((*result_fsp)->fsp_name->st) ?
 990                    ctime(&((*result_fsp)->fsp_name->st.st_ex_mtime.tv_sec)) :
 991                    "No fsp time\n"));
 992         return status;
 993 }
 994
 995 static int um_rename(vfs_handle_struct *handle,
 996                      const struct smb_filename *smb_fname_src,
 997                      const struct smb_filename *smb_fname_dst)
 998 {
 999         int status;
1000         struct smb_filename *src_client_fname = NULL;
1001         struct smb_filename *dst_client_fname = NULL;
1002
1003         DEBUG(10, ("Entering with "
1004                    "smb_fname_src->base_name '%s', "
1005                    "smb_fname_dst->base_name '%s'\n",
1006                    smb_fname_src->base_name,
1007                    smb_fname_dst->base_name));
1008
1009         if (!is_in_media_files(smb_fname_src->base_name)
1010             &&
1011             !is_in_media_files(smb_fname_dst->base_name)) {
1012                 return SMB_VFS_NEXT_RENAME(handle, smb_fname_src,
1013                                            smb_fname_dst);
1014         }
1015
1016         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1017                                             smb_fname_src,
1018                                             &src_client_fname);
1019         if (status != 0) {
1020                 goto err;
1021         }
1022
1023         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1024                                             smb_fname_dst,
1025                                             &dst_client_fname);
1026
1027         if (status != 0) {
1028                 goto err;
1029         }
1030
1031         status = SMB_VFS_NEXT_RENAME(handle, src_client_fname,
1032                                      dst_client_fname);
1033 err:
1034         TALLOC_FREE(dst_client_fname);
1035         TALLOC_FREE(src_client_fname);
1036         DEBUG(10, ("Leaving with smb_fname_src->base_name '%s',"
1037                    " smb_fname_dst->base_name '%s'\n",
1038                    smb_fname_src->base_name,
1039                    smb_fname_dst->base_name));
1040         return status;
1041 }
1042
1043 /*
1044  * Success: return 0
1045  * Failure: set errno, return -1
1046  */
1047 static int um_stat(vfs_handle_struct *handle,
1048                    struct smb_filename *smb_fname)
1049 {
1050         int status = 0;
1051         struct smb_filename *client_fname = NULL;
1052
1053         DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
1054                    smb_fname->base_name));
1055
1056         if (!is_in_media_files(smb_fname->base_name)) {
1057                 return SMB_VFS_NEXT_STAT(handle, smb_fname);
1058         }
1059
1060         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1061                                             smb_fname,
1062                                             &client_fname);
1063         if (status != 0) {
1064                 goto err;
1065         }
1066         DEBUG(10, ("Stat'ing client_fname->base_name '%s'\n",
1067                    client_fname->base_name));
1068
1069         status = SMB_VFS_NEXT_STAT(handle, client_fname);
1070         if (status != 0) {
1071                 goto err;
1072         }
1073
1074         /*
1075          * Unlike functions with const smb_filename, we have to modify
1076          * smb_fname itself to pass our info back up.
1077          */
1078         DEBUG(10, ("Setting smb_fname '%s' stat from client_fname '%s'\n",
1079                    smb_fname->base_name, client_fname->base_name));
1080         smb_fname->st = client_fname->st;
1081
1082 err:
1083         TALLOC_FREE(client_fname);
1084         DEBUG(10, ("Leaving with smb_fname->st.st_ex_mtime %s",
1085                    ctime(&(smb_fname->st.st_ex_mtime.tv_sec))));
1086         return status;
1087 }
1088
1089 static int um_lstat(vfs_handle_struct *handle,
1090                     struct smb_filename *smb_fname)
1091 {
1092         int status = 0;
1093         struct smb_filename *client_fname = NULL;
1094
1095         DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
1096                    smb_fname->base_name));
1097
1098         if (!is_in_media_files(smb_fname->base_name)) {
1099                 return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
1100         }
1101
1102         client_fname = NULL;
1103
1104         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1105                                             smb_fname,
1106                                             &client_fname);
1107         if (status != 0) {
1108                 goto err;
1109         }
1110         status = SMB_VFS_NEXT_LSTAT(handle, client_fname);
1111         if (status != 0) {
1112                 goto err;
1113         }
1114
1115         smb_fname->st = client_fname->st;
1116
1117 err:
1118         TALLOC_FREE(client_fname);
1119         DEBUG(10, ("Leaving with smb_fname->st.st_ex_mtime %s",
1120                    ctime(&(smb_fname->st.st_ex_mtime.tv_sec))));
1121         return status;
1122 }
1123
1124 static int um_fstat(vfs_handle_struct *handle,
1125                     files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1126 {
1127         int status = 0;
1128
1129         DEBUG(10, ("Entering with fsp->fsp_name->base_name "
1130                    "'%s'\n", fsp_str_dbg(fsp)));
1131
1132         status = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
1133         if (status != 0) {
1134                 goto out;
1135         }
1136
1137         if ((fsp->fsp_name == NULL) ||
1138             !is_in_media_files(fsp->fsp_name->base_name)) {
1139                 goto out;
1140         }
1141
1142         status = um_stat(handle, fsp->fsp_name);
1143         if (status != 0) {
1144                 goto out;
1145         }
1146
1147         *sbuf = fsp->fsp_name->st;
1148
1149 out:
1150         DEBUG(10, ("Leaving with fsp->fsp_name->st.st_ex_mtime %s\n",
1151                    fsp->fsp_name != NULL ?
1152                    ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec)) : "0"));
1153         return status;
1154 }
1155
1156 static int um_unlink(vfs_handle_struct *handle,
1157                      const struct smb_filename *smb_fname)
1158 {
1159         int status;
1160         struct smb_filename *client_fname = NULL;
1161
1162         DEBUG(10, ("Entering um_unlink\n"));
1163
1164         if (!is_in_media_files(smb_fname->base_name)) {
1165                 return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
1166         }
1167
1168         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1169                                             smb_fname,
1170                                             &client_fname);
1171         if (status != 0) {
1172                 goto err;
1173         }
1174
1175         status = SMB_VFS_NEXT_UNLINK(handle, client_fname);
1176
1177 err:
1178         TALLOC_FREE(client_fname);
1179         return status;
1180 }
1181
1182 static int um_chmod(vfs_handle_struct *handle,
1183                         const struct smb_filename *smb_fname,
1184                         mode_t mode)
1185 {
1186         int status;
1187         struct smb_filename *client_fname = NULL;
1188
1189         DEBUG(10, ("Entering um_chmod\n"));
1190
1191         if (!is_in_media_files(smb_fname->base_name)) {
1192                 return SMB_VFS_NEXT_CHMOD(handle, smb_fname, mode);
1193         }
1194
1195         status = alloc_get_client_smb_fname(handle,
1196                                 talloc_tos(),
1197                                 smb_fname,
1198                                 &client_fname);
1199         if (status != 0) {
1200                 goto err;
1201         }
1202
1203         status = SMB_VFS_NEXT_CHMOD(handle, client_fname, mode);
1204
1205 err:
1206         TALLOC_FREE(client_fname);
1207         return status;
1208 }
1209
1210 static int um_chown(vfs_handle_struct *handle,
1211                         const struct smb_filename *smb_fname,
1212                         uid_t uid,
1213                         gid_t gid)
1214 {
1215         int status;
1216         struct smb_filename *client_fname = NULL;
1217
1218         DEBUG(10, ("Entering um_chown\n"));
1219
1220         if (!is_in_media_files(smb_fname->base_name)) {
1221                 return SMB_VFS_NEXT_CHOWN(handle, smb_fname, uid, gid);
1222         }
1223
1224         status = alloc_get_client_smb_fname(handle,
1225                                 talloc_tos(),
1226                                 smb_fname,
1227                                 &client_fname);
1228         if (status != 0) {
1229                 goto err;
1230         }
1231
1232         status = SMB_VFS_NEXT_CHOWN(handle, client_fname, uid, gid);
1233
1234 err:
1235         TALLOC_FREE(client_fname);
1236         return status;
1237 }
1238
1239 static int um_lchown(vfs_handle_struct *handle,
1240                         const struct smb_filename *smb_fname,
1241                         uid_t uid,
1242                         gid_t gid)
1243 {
1244         int status;
1245         struct smb_filename *client_fname = NULL;
1246
1247         DEBUG(10, ("Entering um_lchown\n"));
1248         if (!is_in_media_files(smb_fname->base_name)) {
1249                 return SMB_VFS_NEXT_LCHOWN(handle, smb_fname, uid, gid);
1250         }
1251
1252         status = alloc_get_client_smb_fname(handle,
1253                                 talloc_tos(),
1254                                 smb_fname,
1255                                 &client_fname);
1256         if (status != 0) {
1257                 goto err;
1258         }
1259
1260         status = SMB_VFS_NEXT_LCHOWN(handle, client_fname, uid, gid);
1261
1262 err:
1263         TALLOC_FREE(client_fname);
1264         return status;
1265 }
1266
1267 static int um_chdir(vfs_handle_struct *handle,
1268                     const char *path)
1269 {
1270         int status;
1271         char *client_path = NULL;
1272
1273         DEBUG(10, ("Entering um_chdir\n"));
1274
1275         if (!is_in_media_files(path)) {
1276                 return SMB_VFS_NEXT_CHDIR(handle, path);
1277         }
1278
1279         status = alloc_get_client_path(handle, talloc_tos(),
1280                                        path, &client_path);
1281         if (status != 0) {
1282                 goto err;
1283         }
1284
1285         status = SMB_VFS_NEXT_CHDIR(handle, client_path);
1286
1287 err:
1288         TALLOC_FREE(client_path);
1289         return status;
1290 }
1291
1292 static int um_ntimes(vfs_handle_struct *handle,
1293                      const struct smb_filename *smb_fname,
1294                      struct smb_file_time *ft)
1295 {
1296         int status;
1297         struct smb_filename *client_fname = NULL;
1298
1299         DEBUG(10, ("Entering um_ntimes\n"));
1300
1301         if (!is_in_media_files(smb_fname->base_name)) {
1302                 return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
1303         }
1304
1305         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1306                                             smb_fname, &client_fname);
1307         if (status != 0) {
1308                 goto err;
1309         }
1310
1311         status = SMB_VFS_NEXT_NTIMES(handle, client_fname, ft);
1312
1313 err:
1314         TALLOC_FREE(client_fname);
1315         return status;
1316 }
1317
1318 static int um_symlink(vfs_handle_struct *handle,
1319                       const char *oldpath,
1320                       const char *newpath)
1321 {
1322         int status;
1323         char *old_client_path = NULL;
1324         char *new_client_path = NULL;
1325
1326         DEBUG(10, ("Entering um_symlink\n"));
1327
1328         if (!is_in_media_files(oldpath) && !is_in_media_files(newpath)) {
1329                 return SMB_VFS_NEXT_SYMLINK(handle, oldpath, newpath);
1330         }
1331
1332         status = alloc_get_client_path(handle, talloc_tos(),
1333                                        oldpath, &old_client_path);
1334         if (status != 0) {
1335                 goto err;
1336         }
1337
1338         status = alloc_get_client_path(handle, talloc_tos(),
1339                                        newpath, &new_client_path);
1340         if (status != 0) {
1341                 goto err;
1342         }
1343
1344         status = SMB_VFS_NEXT_SYMLINK(handle,
1345                                       old_client_path,
1346                                       new_client_path);
1347
1348 err:
1349         TALLOC_FREE(new_client_path);
1350         TALLOC_FREE(old_client_path);
1351         return status;
1352 }
1353
1354 static int um_readlink(vfs_handle_struct *handle,
1355                        const char *path,
1356                        char *buf,
1357                        size_t bufsiz)
1358 {
1359         int status;
1360         char *client_path = NULL;
1361
1362         DEBUG(10, ("Entering um_readlink\n"));
1363
1364         if (!is_in_media_files(path)) {
1365                 return SMB_VFS_NEXT_READLINK(handle, path, buf, bufsiz);
1366         }
1367
1368         status = alloc_get_client_path(handle, talloc_tos(),
1369                                        path, &client_path);
1370         if (status != 0) {
1371                 goto err;
1372         }
1373
1374         status = SMB_VFS_NEXT_READLINK(handle, client_path, buf, bufsiz);
1375
1376 err:
1377         TALLOC_FREE(client_path);
1378         return status;
1379 }
1380
1381 static int um_link(vfs_handle_struct *handle,
1382                    const char *oldpath,
1383                    const char *newpath)
1384 {
1385         int status;
1386         char *old_client_path = NULL;
1387         char *new_client_path = NULL;
1388
1389         DEBUG(10, ("Entering um_link\n"));
1390         if (!is_in_media_files(oldpath) && !is_in_media_files(newpath)) {
1391                 return SMB_VFS_NEXT_LINK(handle, oldpath, newpath);
1392         }
1393
1394         status = alloc_get_client_path(handle, talloc_tos(),
1395                                        oldpath, &old_client_path);
1396         if (status != 0) {
1397                 goto err;
1398         }
1399
1400         status = alloc_get_client_path(handle, talloc_tos(),
1401                                        newpath, &new_client_path);
1402         if (status != 0) {
1403                 goto err;
1404         }
1405
1406         status = SMB_VFS_NEXT_LINK(handle, old_client_path, new_client_path);
1407
1408 err:
1409         TALLOC_FREE(new_client_path);
1410         TALLOC_FREE(old_client_path);
1411         return status;
1412 }
1413
1414 static int um_mknod(vfs_handle_struct *handle,
1415                     const char *pathname,
1416                     mode_t mode,
1417                     SMB_DEV_T dev)
1418 {
1419         int status;
1420         char *client_path = NULL;
1421
1422         DEBUG(10, ("Entering um_mknod\n"));
1423         if (!is_in_media_files(pathname)) {
1424                 return SMB_VFS_NEXT_MKNOD(handle, pathname, mode, dev);
1425         }
1426
1427         status = alloc_get_client_path(handle, talloc_tos(),
1428                                        pathname, &client_path);
1429         if (status != 0) {
1430                 goto err;
1431         }
1432
1433         status = SMB_VFS_NEXT_MKNOD(handle, client_path, mode, dev);
1434
1435 err:
1436         TALLOC_FREE(client_path);
1437         return status;
1438 }
1439
1440 static char *um_realpath(vfs_handle_struct *handle,
1441                          const char *path)
1442 {
1443         char *buf = NULL;
1444         char *client_path = NULL;
1445         int status;
1446
1447         DEBUG(10, ("Entering um_realpath\n"));
1448
1449         if (!is_in_media_files(path)) {
1450                 return SMB_VFS_NEXT_REALPATH(handle, path);
1451         }
1452
1453         status = alloc_get_client_path(handle, talloc_tos(),
1454                                        path, &client_path);
1455         if (status != 0) {
1456                 goto err;
1457         }
1458
1459         buf = SMB_VFS_NEXT_REALPATH(handle, client_path);
1460
1461 err:
1462         TALLOC_FREE(client_path);
1463         return buf;
1464 }
1465
1466 static int um_chflags(vfs_handle_struct *handle,
1467                       const char *path,
1468                       unsigned int flags)
1469 {
1470         int status;
1471         char *client_path = NULL;
1472
1473         DEBUG(10, ("Entering um_chflags\n"));
1474
1475         if (!is_in_media_files(path)) {
1476                 return SMB_VFS_NEXT_CHFLAGS(handle, path, flags);
1477         }
1478
1479         status = alloc_get_client_path(handle, talloc_tos(),
1480                                        path, &client_path);
1481         if (status != 0) {
1482                 goto err;
1483         }
1484
1485         status = SMB_VFS_NEXT_CHFLAGS(handle, client_path, flags);
1486 err:
1487         TALLOC_FREE(client_path);
1488         return status;
1489 }
1490
1491 static NTSTATUS um_streaminfo(struct vfs_handle_struct *handle,
1492                               struct files_struct *fsp,
1493                               const struct smb_filename *smb_fname,
1494                               TALLOC_CTX *ctx,
1495                               unsigned int *num_streams,
1496                               struct stream_struct **streams)
1497 {
1498         NTSTATUS status;
1499         int ret;
1500         struct smb_filename *client_fname = NULL;
1501
1502         DEBUG(10, ("Entering um_streaminfo\n"));
1503
1504         if (!is_in_media_files(smb_fname->base_name)) {
1505                 return SMB_VFS_NEXT_STREAMINFO(handle, fsp, smb_fname,
1506                                                ctx, num_streams, streams);
1507         }
1508
1509         ret = alloc_get_client_smb_fname(handle,
1510                                 talloc_tos(),
1511                                 smb_fname,
1512                                 &client_fname);
1513         if (ret != 0) {
1514                 status = NT_STATUS_NO_MEMORY;
1515                 goto err;
1516         }
1517
1518         /*
1519          * This only works on files, so we don't have to worry about
1520          * our fake directory stat'ing here.  But what does this
1521          * function do, exactly?  Does it need extra modifications for
1522          * the Avid stuff?
1523          */
1524         status = SMB_VFS_NEXT_STREAMINFO(handle, fsp, client_fname,
1525                                          ctx, num_streams, streams);
1526 err:
1527         TALLOC_FREE(client_fname);
1528         return status;
1529 }
1530
1531 /*
1532  * Ignoring get_real_filename function because the default doesn't do
1533  * anything.
1534  */
1535
1536 static NTSTATUS um_get_nt_acl(vfs_handle_struct *handle,
1537                               const struct smb_filename *smb_fname,
1538                               uint32_t security_info,
1539                               TALLOC_CTX *mem_ctx,
1540                               struct security_descriptor **ppdesc)
1541 {
1542         NTSTATUS status;
1543         char *client_path = NULL;
1544         struct smb_filename *client_smb_fname = NULL;
1545         int ret;
1546
1547         DEBUG(10, ("Entering um_get_nt_acl\n"));
1548
1549         if (!is_in_media_files(smb_fname->base_name)) {
1550                 return SMB_VFS_NEXT_GET_NT_ACL(handle, smb_fname,
1551                                                security_info,
1552                                                mem_ctx, ppdesc);
1553         }
1554
1555         ret = alloc_get_client_path(handle, talloc_tos(),
1556                                     smb_fname->base_name, &client_path);
1557         if (ret != 0) {
1558                 status = map_nt_error_from_unix(errno);
1559                 goto err;
1560         }
1561
1562         client_smb_fname = synthetic_smb_fname(talloc_tos(),
1563                                         client_path,
1564                                         NULL,
1565                                         NULL,
1566                                         smb_fname->flags);
1567         if (client_smb_fname == NULL) {
1568                 TALLOC_FREE(client_path);
1569                 return NT_STATUS_NO_MEMORY;
1570         }
1571
1572         status = SMB_VFS_NEXT_GET_NT_ACL(handle, client_smb_fname,
1573                                          security_info,
1574                                          mem_ctx, ppdesc);
1575 err:
1576         TALLOC_FREE(client_smb_fname);
1577         TALLOC_FREE(client_path);
1578         return status;
1579 }
1580
1581 static int um_chmod_acl(vfs_handle_struct *handle,
1582                         const struct smb_filename *smb_fname,
1583                         mode_t mode)
1584 {
1585         int status;
1586         int saved_errno;
1587         struct smb_filename *client_fname = NULL;
1588
1589         DEBUG(10, ("Entering um_chmod_acl\n"));
1590
1591         if (!is_in_media_files(smb_fname->base_name)) {
1592                 return SMB_VFS_NEXT_CHMOD_ACL(handle, smb_fname, mode);
1593         }
1594
1595         status = alloc_get_client_smb_fname(handle,
1596                                 talloc_tos(),
1597                                 smb_fname,
1598                                 &client_fname);
1599         if (status != 0) {
1600                 goto err;
1601         }
1602         status = SMB_VFS_NEXT_CHMOD_ACL(handle, client_fname, mode);
1603
1604 err:
1605         saved_errno = errno;
1606         TALLOC_FREE(client_fname);
1607         errno = saved_errno;
1608         return status;
1609 }
1610
1611 static SMB_ACL_T um_sys_acl_get_file(vfs_handle_struct *handle,
1612                                 const struct smb_filename *smb_fname,
1613                                 SMB_ACL_TYPE_T type,
1614                                 TALLOC_CTX *mem_ctx)
1615 {
1616         SMB_ACL_T ret;
1617         int saved_errno = 0;
1618         struct smb_filename *client_fname = NULL;
1619         int status;
1620
1621         DEBUG(10, ("Entering um_sys_acl_get_file\n"));
1622
1623         if (!is_in_media_files(smb_fname->base_name)) {
1624                 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, smb_fname,
1625                                                      type, mem_ctx);
1626         }
1627
1628         status = alloc_get_client_smb_fname(handle,
1629                                 talloc_tos(),
1630                                 smb_fname,
1631                                 &client_fname);
1632         if (status != 0) {
1633                 ret = (SMB_ACL_T)NULL;
1634                 goto err;
1635         }
1636
1637         ret = SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, client_fname,
1638                                 type, mem_ctx);
1639
1640 err:
1641         if (ret == (SMB_ACL_T)NULL) {
1642                 saved_errno = errno;
1643         }
1644         TALLOC_FREE(client_fname);
1645         if (saved_errno != 0) {
1646                 errno = saved_errno;
1647         }
1648         return ret;
1649 }
1650
1651 static int um_sys_acl_set_file(vfs_handle_struct *handle,
1652                                const struct smb_filename *smb_fname,
1653                                SMB_ACL_TYPE_T acltype,
1654                                SMB_ACL_T theacl)
1655 {
1656         int status;
1657         int saved_errno = 0;
1658         struct smb_filename *client_fname = NULL;
1659
1660         DEBUG(10, ("Entering um_sys_acl_set_file\n"));
1661
1662         if (!is_in_media_files(smb_fname->base_name)) {
1663                 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, smb_fname,
1664                                                      acltype, theacl);
1665         }
1666
1667         status = alloc_get_client_smb_fname(handle,
1668                                 talloc_tos(),
1669                                 smb_fname,
1670                                 &client_fname);
1671         if (status != 0) {
1672                 goto err;
1673         }
1674
1675         status = SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, client_fname,
1676                                                acltype, theacl);
1677
1678 err:
1679         if (status == -1) {
1680                 saved_errno = errno;
1681         }
1682         TALLOC_FREE(client_fname);
1683         if (saved_errno != 0) {
1684                 errno = saved_errno;
1685         }
1686         return status;
1687 }
1688
1689 static int um_sys_acl_delete_def_file(vfs_handle_struct *handle,
1690                                 const struct smb_filename *smb_fname)
1691 {
1692         int status;
1693         int saved_errno = 0;
1694         struct smb_filename *client_fname = NULL;
1695
1696         DEBUG(10, ("Entering um_sys_acl_delete_def_file\n"));
1697
1698         if (!is_in_media_files(smb_fname->base_name)) {
1699                 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle,
1700                                 smb_fname);
1701         }
1702
1703         status = alloc_get_client_smb_fname(handle,
1704                                 talloc_tos(),
1705                                 smb_fname,
1706                                 &client_fname);
1707         if (status != 0) {
1708                 goto err;
1709         }
1710
1711         status = SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, client_fname);
1712
1713 err:
1714         if (status == -1) {
1715                 saved_errno = errno;
1716         }
1717         TALLOC_FREE(client_fname);
1718         if (saved_errno != 0) {
1719                 errno = saved_errno;
1720         }
1721         return status;
1722 }
1723
1724 static ssize_t um_getxattr(struct vfs_handle_struct *handle,
1725                            const char *path,
1726                            const char *name,
1727                            void *value,
1728                            size_t size)
1729 {
1730         ssize_t ret;
1731         char *client_path = NULL;
1732         int status;
1733
1734         DEBUG(10, ("Entering um_getxattr\n"));
1735         if (!is_in_media_files(path)) {
1736                 return SMB_VFS_NEXT_GETXATTR(handle, path, name, value, size);
1737         }
1738
1739         status = alloc_get_client_path(handle, talloc_tos(),
1740                                        path, &client_path);
1741         if (status != 0) {
1742                 ret = -1;
1743                 goto err;
1744         }
1745
1746         ret = SMB_VFS_NEXT_GETXATTR(handle, client_path, name, value, size);
1747 err:
1748         TALLOC_FREE(client_path);
1749         return ret;
1750 }
1751
1752 static ssize_t um_listxattr(struct vfs_handle_struct *handle,
1753                             const char *path,
1754                             char *list,
1755                             size_t size)
1756 {
1757         ssize_t ret;
1758         char *client_path = NULL;
1759         int status;
1760
1761         DEBUG(10, ("Entering um_listxattr\n"));
1762
1763         if (!is_in_media_files(path)) {
1764                 return SMB_VFS_NEXT_LISTXATTR(handle, path, list, size);
1765         }
1766
1767         status = alloc_get_client_path(handle, talloc_tos(),
1768                                        path, &client_path);
1769         if (status != 0) {
1770                 ret = -1;
1771                 goto err;
1772         }
1773
1774         ret = SMB_VFS_NEXT_LISTXATTR(handle, client_path, list, size);
1775
1776 err:
1777         TALLOC_FREE(client_path);
1778         return ret;
1779 }
1780
1781 static int um_removexattr(struct vfs_handle_struct *handle,
1782                           const char *path,
1783                           const char *name)
1784 {
1785         int status;
1786         char *client_path = NULL;
1787
1788         DEBUG(10, ("Entering um_removexattr\n"));
1789
1790         if (!is_in_media_files(path)) {
1791                 return SMB_VFS_NEXT_REMOVEXATTR(handle, path, name);
1792         }
1793
1794         status = alloc_get_client_path(handle, talloc_tos(),
1795                                        path, &client_path);
1796         if (status != 0) {
1797                 goto err;
1798         }
1799
1800         status = SMB_VFS_NEXT_REMOVEXATTR(handle, client_path, name);
1801
1802 err:
1803         TALLOC_FREE(client_path);
1804         return status;
1805 }
1806
1807 static int um_setxattr(struct vfs_handle_struct *handle,
1808                        const char *path,
1809                        const char *name,
1810                        const void *value,
1811                        size_t size,
1812                        int flags)
1813 {
1814         int status;
1815         char *client_path = NULL;
1816
1817         DEBUG(10, ("Entering um_setxattr\n"));
1818
1819         if (!is_in_media_files(path)) {
1820                 return SMB_VFS_NEXT_SETXATTR(handle, path, name, value,
1821                                              size, flags);
1822         }
1823
1824         status = alloc_get_client_path(handle, talloc_tos(),
1825                                        path, &client_path);
1826         if (status != 0) {
1827                 goto err;
1828         }
1829
1830         status = SMB_VFS_NEXT_SETXATTR(handle, client_path, name, value,
1831                                        size, flags);
1832
1833 err:
1834         TALLOC_FREE(client_path);
1835         return status;
1836 }
1837
1838 static int um_connect(vfs_handle_struct *handle,
1839                          const char *service,
1840                          const char *user)
1841 {
1842         int rc;
1843         struct um_config_data *config;
1844         int enumval;
1845
1846         rc = SMB_VFS_NEXT_CONNECT(handle, service, user);
1847         if (rc != 0) {
1848                 return rc;
1849         }
1850
1851         config = talloc_zero(handle->conn, struct um_config_data);
1852         if (!config) {
1853                 DEBUG(1, ("talloc_zero() failed\n"));
1854                 errno = ENOMEM;
1855                 return -1;
1856         }
1857
1858         enumval = lp_parm_enum(SNUM(handle->conn), UM_PARAM_TYPE_NAME,
1859                                "clientid", um_clientid, UM_CLIENTID_NAME);
1860         if (enumval == -1) {
1861                 DEBUG(1, ("value for %s: type unknown\n",
1862                           UM_PARAM_TYPE_NAME));
1863                 return -1;
1864         }
1865         config->clientid = (enum um_clientid)enumval;
1866
1867         SMB_VFS_HANDLE_SET_DATA(handle, config,
1868                                 NULL, struct um_config_data,
1869                                 return -1);
1870
1871         return 0;
1872 }
1873
1874 /* VFS operations structure */
1875
1876 static struct vfs_fn_pointers vfs_um_fns = {
1877         .connect_fn = um_connect,
1878
1879         /* Disk operations */
1880
1881         .statvfs_fn = um_statvfs,
1882
1883         /* Directory operations */
1884
1885         .opendir_fn = um_opendir,
1886         .fdopendir_fn = um_fdopendir,
1887         .readdir_fn = um_readdir,
1888         .seekdir_fn = um_seekdir,
1889         .telldir_fn = um_telldir,
1890         .rewind_dir_fn = um_rewinddir,
1891         .mkdir_fn = um_mkdir,
1892         .rmdir_fn = um_rmdir,
1893         .closedir_fn = um_closedir,
1894         .init_search_op_fn = um_init_search_op,
1895
1896         /* File operations */
1897
1898         .open_fn = um_open,
1899         .create_file_fn = um_create_file,
1900         .rename_fn = um_rename,
1901         .stat_fn = um_stat,
1902         .lstat_fn = um_lstat,
1903         .fstat_fn = um_fstat,
1904         .unlink_fn = um_unlink,
1905         .chmod_fn = um_chmod,
1906         .chown_fn = um_chown,
1907         .lchown_fn = um_lchown,
1908         .chdir_fn = um_chdir,
1909         .ntimes_fn = um_ntimes,
1910         .symlink_fn = um_symlink,
1911         .readlink_fn = um_readlink,
1912         .link_fn = um_link,
1913         .mknod_fn = um_mknod,
1914         .realpath_fn = um_realpath,
1915         .chflags_fn = um_chflags,
1916         .streaminfo_fn = um_streaminfo,
1917
1918         /* NT ACL operations. */
1919
1920         .get_nt_acl_fn = um_get_nt_acl,
1921
1922         /* POSIX ACL operations. */
1923
1924         .chmod_acl_fn = um_chmod_acl,
1925
1926         .sys_acl_get_file_fn = um_sys_acl_get_file,
1927         .sys_acl_set_file_fn = um_sys_acl_set_file,
1928         .sys_acl_delete_def_file_fn = um_sys_acl_delete_def_file,
1929
1930         /* EA operations. */
1931         .getxattr_fn = um_getxattr,
1932         .listxattr_fn = um_listxattr,
1933         .removexattr_fn = um_removexattr,
1934         .setxattr_fn = um_setxattr,
1935 };
1936
1937 NTSTATUS vfs_unityed_media_init(TALLOC_CTX *);
1938 NTSTATUS vfs_unityed_media_init(TALLOC_CTX *ctx)
1939 {
1940         NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
1941                                         "unityed_media", &vfs_um_fns);
1942         if (!NT_STATUS_IS_OK(ret)) {
1943                 return ret;
1944         }
1945
1946         vfs_um_debug_level = debug_add_class("unityed_media");
1947
1948         if (vfs_um_debug_level == -1) {
1949                 vfs_um_debug_level = DBGC_VFS;
1950                 DEBUG(1, ("unityed_media_init: Couldn't register custom "
1951                           "debugging class.\n"));
1952         }
1953
1954         return ret;
1955 }