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 struct smb_filename *smb_fname,
 526                       struct vfs_statvfs_struct *statbuf)
 527 {
 528         int status;
 529         struct smb_filename *client_fname = NULL;
 530
 531         DEBUG(10, ("Entering with path '%s'\n", smb_fname->base_name));
 532
 533         if (!is_in_media_files(smb_fname->base_name)) {
 534                 return SMB_VFS_NEXT_STATVFS(handle, smb_fname, statbuf);
 535         }
 536
 537         status = alloc_get_client_smb_fname(handle,
 538                                 talloc_tos(),
 539                                 smb_fname,
 540                                 &client_fname);
 541         if (status != 0) {
 542                 goto err;
 543         }
 544
 545         status = SMB_VFS_NEXT_STATVFS(handle, client_fname, statbuf);
 546 err:
 547         TALLOC_FREE(client_fname);
 548         DEBUG(10, ("Leaving with path '%s'\n", smb_fname->base_name));
 549         return status;
 550 }
 551
 552 /* Success: return a um_dirinfo_struct cast as a DIR
 553  * Failure: set errno, return NULL
 554  */
 555 static DIR *um_opendir(vfs_handle_struct *handle,
 556                        const struct smb_filename *smb_fname,
 557                        const char *mask,
 558                        uint32_t attr)
 559 {
 560         struct um_dirinfo_struct *dirInfo;
 561
 562         DEBUG(10, ("Entering with fname '%s'\n", smb_fname->base_name));
 563
 564         if (alloc_set_client_dirinfo(handle, smb_fname->base_name, &dirInfo)) {
 565                 goto err;
 566         }
 567
 568         if (!dirInfo->isInMediaFiles) {
 569                 dirInfo->dirstream = SMB_VFS_NEXT_OPENDIR(
 570                         handle, smb_fname, mask, attr);
 571         } else {
 572                 struct smb_filename *client_smb_fname =
 573                         synthetic_smb_fname(talloc_tos(),
 574                                         dirInfo->clientPath,
 575                                         NULL,
 576                                         NULL,
 577                                         smb_fname->flags);
 578                 if (client_smb_fname == NULL) {
 579                         goto err;
 580                 }
 581
 582                 dirInfo->dirstream = SMB_VFS_NEXT_OPENDIR(
 583                         handle, client_smb_fname, mask, attr);
 584
 585                 TALLOC_FREE(client_smb_fname);
 586         }
 587
 588         if (dirInfo->dirstream == NULL) {
 589                 goto err;
 590         }
 591
 592         DEBUG(10, ("Leaving with dirInfo->dirpath '%s', "
 593                               "dirInfo->clientPath '%s'\n",
 594                               dirInfo->dirpath,
 595                               dirInfo->clientPath));
 596         return (DIR*)dirInfo;
 597
 598 err:
 599         DEBUG(1, ("Failing with fname '%s'\n", smb_fname->base_name));
 600         TALLOC_FREE(dirInfo);
 601         return NULL;
 602 }
 603
 604 static DIR *um_fdopendir(vfs_handle_struct *handle,
 605                          files_struct *fsp,
 606                          const char *mask,
 607                          uint32_t attr)
 608 {
 609         struct um_dirinfo_struct *dirInfo = NULL;
 610         DIR *dirstream;
 611
 612         DEBUG(10, ("Entering with fsp->fsp_name->base_name '%s'\n",
 613                    fsp->fsp_name->base_name));
 614
 615         dirstream = SMB_VFS_NEXT_FDOPENDIR(handle, fsp, mask, attr);
 616         if (!dirstream) {
 617                 goto err;
 618         }
 619
 620         if (alloc_set_client_dirinfo(handle,
 621                                      fsp->fsp_name->base_name,
 622                                      &dirInfo)) {
 623                 goto err;
 624         }
 625
 626         dirInfo->dirstream = dirstream;
 627
 628         if (!dirInfo->isInMediaFiles) {
 629                 /*
 630                  * FIXME: this is the original code, something must be
 631                  * missing here, but what? -slow
 632                  */
 633                 goto out;
 634         }
 635
 636 out:
 637         DEBUG(10, ("Leaving with dirInfo->dirpath '%s', "
 638                    "dirInfo->clientPath '%s', "
 639                    "fsp->fsp_name->st.st_ex_mtime %s",
 640                    dirInfo->dirpath,
 641                    dirInfo->clientPath,
 642                    ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec))));
 643         return (DIR *) dirInfo;
 644
 645 err:
 646         DEBUG(1, ("Failing with fsp->fsp_name->base_name '%s'\n",
 647                   fsp->fsp_name->base_name));
 648         TALLOC_FREE(dirInfo);
 649         return NULL;
 650 }
 651
 652 /*
 653  * skip own suffixed directory
 654  * replace own suffixed directory with non suffixed.
 655  *
 656  * Success: return dirent
 657  * End of data: return NULL
 658  * Failure: set errno, return NULL
 659  */
 660 static struct dirent *um_readdir(vfs_handle_struct *handle,
 661                                  DIR *dirp,
 662                                  SMB_STRUCT_STAT *sbuf)
 663 {
 664         um_dirinfo_struct* dirInfo = (um_dirinfo_struct*)dirp;
 665         struct dirent *d = NULL;
 666         int skip;
 667
 668         DEBUG(10, ("dirInfo->dirpath '%s', "
 669                    "dirInfo->clientPath '%s', "
 670                    "dirInfo->isInMediaFiles '%s', "
 671                    "dirInfo->clientSubDirname '%s'\n",
 672                    dirInfo->dirpath,
 673                    dirInfo->clientPath,
 674                    dirInfo->isInMediaFiles ? "true" : "false",
 675                    dirInfo->clientSubDirname));
 676
 677         if (!dirInfo->isInMediaFiles) {
 678                 return SMB_VFS_NEXT_READDIR(handle, dirInfo->dirstream, sbuf);
 679         }
 680
 681         do {
 682                 const char* dname;
 683                 bool isAppleDouble;
 684                 char *digits;
 685                 size_t digits_len;
 686                 uintmax_t number;
 687
 688                 skip = false;
 689                 d = SMB_VFS_NEXT_READDIR(handle, dirInfo->dirstream, sbuf);
 690
 691                 if (d == NULL) {
 692                         break;
 693                 }
 694
 695                 /* ignore apple double prefix for logic below */
 696                 if (is_apple_double(d->d_name)) {
 697                         dname = &d->d_name[APPLE_DOUBLE_PREFIX_LEN];
 698                         isAppleDouble = true;
 699                 } else {
 700                         dname = d->d_name;
 701                         isAppleDouble = false;
 702                 }
 703
 704                 DEBUG(10, ("dname = '%s'\n", dname));
 705
 706                 (void)get_digit_group(dname, &number);
 707                 digits = talloc_asprintf(talloc_tos(), "%ju", number);
 708                 if (digits == NULL) {
 709                         DEBUG(1, ("out of memory"));
 710                         goto err;
 711                 }
 712                 digits_len = strlen(digits);
 713
 714                 if (alloc_set_client_dirinfo_path(handle,
 715                                                   dirInfo,
 716                                                   &((dirInfo)->clientSubDirname),
 717                                                   digits)) {
 718                         goto err;
 719                 }
 720
 721                 /*
 722                  * If set to "true", vfs shows digits-only
 723                  * non-suffixed subdirectories.  Normally, such
 724                  * subdirectories can exists only in non-media
 725                  * directories, so we set it to "false".  Otherwise,
 726                  * if we have such subdirectories (probably created
 727                  * over not "unityed" connection), it can be little
 728                  * bit confusing.
 729                  */
 730                 if (strequal(dname, digits)) {
 731                         skip = false;
 732                 } else if (strequal(dname, dirInfo->clientSubDirname)) {
 733                         /*
 734                          * Remove suffix of this client's suffixed
 735                          * subdirectories
 736                          */
 737                         if (isAppleDouble) {
 738                                 d->d_name[digits_len + APPLE_DOUBLE_PREFIX_LEN] = '\0';
 739                         } else {
 740                                 d->d_name[digits_len] = '\0';
 741                         }
 742                 } else if (strnequal(digits, dname, digits_len)) {
 743                         /*
 744                          * Set to false to see another clients subdirectories
 745                          */
 746                         skip = false;
 747                 }
 748         } while (skip);
 749
 750         DEBUG(10, ("Leaving um_readdir\n"));
 751         return d;
 752 err:
 753         TALLOC_FREE(dirInfo);
 754         return NULL;
 755 }
 756
 757 static void um_seekdir(vfs_handle_struct *handle,
 758                        DIR *dirp,
 759                        long offset)
 760 {
 761         DEBUG(10, ("Entering and leaving um_seekdir\n"));
 762         SMB_VFS_NEXT_SEEKDIR(handle,
 763                              ((um_dirinfo_struct*)dirp)->dirstream, offset);
 764 }
 765
 766 static long um_telldir(vfs_handle_struct *handle,
 767                        DIR *dirp)
 768 {
 769         DEBUG(10, ("Entering and leaving um_telldir\n"));
 770         return SMB_VFS_NEXT_TELLDIR(handle,
 771                                     ((um_dirinfo_struct*)dirp)->dirstream);
 772 }
 773
 774 static void um_rewinddir(vfs_handle_struct *handle,
 775                          DIR *dirp)
 776 {
 777         DEBUG(10, ("Entering and leaving um_rewinddir\n"));
 778         SMB_VFS_NEXT_REWINDDIR(handle,
 779                                ((um_dirinfo_struct*)dirp)->dirstream);
 780 }
 781
 782 static int um_mkdir(vfs_handle_struct *handle,
 783                     const struct smb_filename *smb_fname,
 784                     mode_t mode)
 785 {
 786         int status;
 787         const char *path = smb_fname->base_name;
 788         struct smb_filename *client_fname = NULL;
 789
 790         DEBUG(10, ("Entering with path '%s'\n", path));
 791
 792         if (!is_in_media_files(path) || !is_in_media_dir(path)) {
 793                 return SMB_VFS_NEXT_MKDIR(handle, smb_fname, mode);
 794         }
 795
 796         status = alloc_get_client_smb_fname(handle,
 797                                 talloc_tos(),
 798                                 smb_fname,
 799                                 &client_fname);
 800         if (status != 0) {
 801                 goto err;
 802         }
 803
 804         status = SMB_VFS_NEXT_MKDIR(handle, client_fname, mode);
 805 err:
 806         TALLOC_FREE(client_fname);
 807         DEBUG(10, ("Leaving with path '%s'\n", path));
 808         return status;
 809 }
 810
 811 static int um_rmdir(vfs_handle_struct *handle,
 812                     const struct smb_filename *smb_fname)
 813 {
 814         int status;
 815         const char *path = smb_fname->base_name;
 816         struct smb_filename *client_fname = NULL;
 817
 818         DEBUG(10, ("Entering with path '%s'\n", path));
 819
 820         if (!is_in_media_files(path)) {
 821                 return SMB_VFS_NEXT_RMDIR(handle, smb_fname);
 822         }
 823
 824         status = alloc_get_client_smb_fname(handle,
 825                                 talloc_tos(),
 826                                 smb_fname,
 827                                 &client_fname);
 828         if (status != 0) {
 829                 goto err;
 830         }
 831
 832         status = SMB_VFS_NEXT_RMDIR(handle, client_fname);
 833 err:
 834         TALLOC_FREE(client_fname);
 835         DEBUG(10, ("Leaving with path '%s'\n", path));
 836         return status;
 837 }
 838
 839 static int um_closedir(vfs_handle_struct *handle,
 840                        DIR *dirp)
 841 {
 842         DIR *realdirp = ((um_dirinfo_struct*)dirp)->dirstream;
 843
 844         TALLOC_FREE(dirp);
 845
 846         return SMB_VFS_NEXT_CLOSEDIR(handle, realdirp);
 847 }
 848
 849 static int um_open(vfs_handle_struct *handle,
 850                    struct smb_filename *smb_fname,
 851                    files_struct *fsp,
 852                    int flags,
 853                    mode_t mode)
 854 {
 855         int ret;
 856         struct smb_filename *client_fname = NULL;
 857
 858         DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
 859                               smb_fname->base_name));
 860
 861         if (!is_in_media_files(smb_fname->base_name)) {
 862                 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
 863         }
 864
 865         if (alloc_get_client_smb_fname(handle, talloc_tos(),
 866                                        smb_fname,
 867                                        &client_fname)) {
 868                 ret = -1;
 869                 goto err;
 870         }
 871
 872         /*
 873          * FIXME:
 874          * What about fsp->fsp_name?  We also have to get correct stat
 875          * info into fsp and smb_fname for DB files, don't we?
 876          */
 877
 878         DEBUG(10, ("Leaving with smb_fname->base_name '%s' "
 879                    "smb_fname->st.st_ex_mtime %s"
 880                    "fsp->fsp_name->st.st_ex_mtime %s",
 881                               smb_fname->base_name,
 882                               ctime(&(smb_fname->st.st_ex_mtime.tv_sec)),
 883                               ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec))));
 884
 885         ret = SMB_VFS_NEXT_OPEN(handle, client_fname, fsp, flags, mode);
 886 err:
 887         TALLOC_FREE(client_fname);
 888         DEBUG(10, ("Leaving with smb_fname->base_name '%s'\n",
 889                               smb_fname->base_name));
 890         return ret;
 891 }
 892
 893 static NTSTATUS um_create_file(vfs_handle_struct *handle,
 894                                struct smb_request *req,
 895                                uint16_t root_dir_fid,
 896                                struct smb_filename *smb_fname,
 897                                uint32_t access_mask,
 898                                uint32_t share_access,
 899                                uint32_t create_disposition,
 900                                uint32_t create_options,
 901                                uint32_t file_attributes,
 902                                uint32_t oplock_request,
 903                                struct smb2_lease *lease,
 904                                uint64_t allocation_size,
 905                                uint32_t private_flags,
 906                                struct security_descriptor *sd,
 907                                struct ea_list *ea_list,
 908                                files_struct **result_fsp,
 909                                int *pinfo,
 910                                const struct smb2_create_blobs *in_context_blobs,
 911                                struct smb2_create_blobs *out_context_blobs)
 912 {
 913         NTSTATUS status;
 914         struct smb_filename *client_fname = NULL;
 915
 916         DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
 917                    smb_fname->base_name));
 918
 919         if (!is_in_media_files(smb_fname->base_name)) {
 920                 return SMB_VFS_NEXT_CREATE_FILE(
 921                         handle,
 922                         req,
 923                         root_dir_fid,
 924                         smb_fname,
 925                         access_mask,
 926                         share_access,
 927                         create_disposition,
 928                         create_options,
 929                         file_attributes,
 930                         oplock_request,
 931                         lease,
 932                         allocation_size,
 933                         private_flags,
 934                         sd,
 935                         ea_list,
 936                         result_fsp,
 937                         pinfo,
 938                         in_context_blobs,
 939                         out_context_blobs);
 940         }
 941
 942         if (alloc_get_client_smb_fname(handle, talloc_tos(),
 943                                        smb_fname,
 944                                        &client_fname)) {
 945                 status = map_nt_error_from_unix(errno);
 946                 goto err;
 947         }
 948
 949         /*
 950          * FIXME:
 951          * This only creates files, so we don't have to worry about
 952          * our fake directory stat'ing here.  But we still need to
 953          * route stat calls for DB files properly, right?
 954          */
 955         status = SMB_VFS_NEXT_CREATE_FILE(
 956                 handle,
 957                 req,
 958                 root_dir_fid,
 959                 client_fname,
 960                 access_mask,
 961                 share_access,
 962                 create_disposition,
 963                 create_options,
 964                 file_attributes,
 965                 oplock_request,
 966                 lease,
 967                 allocation_size,
 968                 private_flags,
 969                 sd,
 970                 ea_list,
 971                 result_fsp,
 972                 pinfo,
 973                 in_context_blobs,
 974                 out_context_blobs);
 975 err:
 976         TALLOC_FREE(client_fname);
 977         DEBUG(10, ("Leaving with smb_fname->base_name '%s'"
 978                    "smb_fname->st.st_ex_mtime %s"
 979                    " fsp->fsp_name->st.st_ex_mtime %s",
 980                    smb_fname->base_name,
 981                    ctime(&(smb_fname->st.st_ex_mtime.tv_sec)),
 982                    (*result_fsp) && VALID_STAT((*result_fsp)->fsp_name->st) ?
 983                    ctime(&((*result_fsp)->fsp_name->st.st_ex_mtime.tv_sec)) :
 984                    "No fsp time\n"));
 985         return status;
 986 }
 987
 988 static int um_rename(vfs_handle_struct *handle,
 989                      const struct smb_filename *smb_fname_src,
 990                      const struct smb_filename *smb_fname_dst)
 991 {
 992         int status;
 993         struct smb_filename *src_client_fname = NULL;
 994         struct smb_filename *dst_client_fname = NULL;
 995
 996         DEBUG(10, ("Entering with "
 997                    "smb_fname_src->base_name '%s', "
 998                    "smb_fname_dst->base_name '%s'\n",
 999                    smb_fname_src->base_name,
1000                    smb_fname_dst->base_name));
1001
1002         if (!is_in_media_files(smb_fname_src->base_name)
1003             &&
1004             !is_in_media_files(smb_fname_dst->base_name)) {
1005                 return SMB_VFS_NEXT_RENAME(handle, smb_fname_src,
1006                                            smb_fname_dst);
1007         }
1008
1009         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1010                                             smb_fname_src,
1011                                             &src_client_fname);
1012         if (status != 0) {
1013                 goto err;
1014         }
1015
1016         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1017                                             smb_fname_dst,
1018                                             &dst_client_fname);
1019
1020         if (status != 0) {
1021                 goto err;
1022         }
1023
1024         status = SMB_VFS_NEXT_RENAME(handle, src_client_fname,
1025                                      dst_client_fname);
1026 err:
1027         TALLOC_FREE(dst_client_fname);
1028         TALLOC_FREE(src_client_fname);
1029         DEBUG(10, ("Leaving with smb_fname_src->base_name '%s',"
1030                    " smb_fname_dst->base_name '%s'\n",
1031                    smb_fname_src->base_name,
1032                    smb_fname_dst->base_name));
1033         return status;
1034 }
1035
1036 /*
1037  * Success: return 0
1038  * Failure: set errno, return -1
1039  */
1040 static int um_stat(vfs_handle_struct *handle,
1041                    struct smb_filename *smb_fname)
1042 {
1043         int status = 0;
1044         struct smb_filename *client_fname = NULL;
1045
1046         DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
1047                    smb_fname->base_name));
1048
1049         if (!is_in_media_files(smb_fname->base_name)) {
1050                 return SMB_VFS_NEXT_STAT(handle, smb_fname);
1051         }
1052
1053         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1054                                             smb_fname,
1055                                             &client_fname);
1056         if (status != 0) {
1057                 goto err;
1058         }
1059         DEBUG(10, ("Stat'ing client_fname->base_name '%s'\n",
1060                    client_fname->base_name));
1061
1062         status = SMB_VFS_NEXT_STAT(handle, client_fname);
1063         if (status != 0) {
1064                 goto err;
1065         }
1066
1067         /*
1068          * Unlike functions with const smb_filename, we have to modify
1069          * smb_fname itself to pass our info back up.
1070          */
1071         DEBUG(10, ("Setting smb_fname '%s' stat from client_fname '%s'\n",
1072                    smb_fname->base_name, client_fname->base_name));
1073         smb_fname->st = client_fname->st;
1074
1075 err:
1076         TALLOC_FREE(client_fname);
1077         DEBUG(10, ("Leaving with smb_fname->st.st_ex_mtime %s",
1078                    ctime(&(smb_fname->st.st_ex_mtime.tv_sec))));
1079         return status;
1080 }
1081
1082 static int um_lstat(vfs_handle_struct *handle,
1083                     struct smb_filename *smb_fname)
1084 {
1085         int status = 0;
1086         struct smb_filename *client_fname = NULL;
1087
1088         DEBUG(10, ("Entering with smb_fname->base_name '%s'\n",
1089                    smb_fname->base_name));
1090
1091         if (!is_in_media_files(smb_fname->base_name)) {
1092                 return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
1093         }
1094
1095         client_fname = NULL;
1096
1097         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1098                                             smb_fname,
1099                                             &client_fname);
1100         if (status != 0) {
1101                 goto err;
1102         }
1103         status = SMB_VFS_NEXT_LSTAT(handle, client_fname);
1104         if (status != 0) {
1105                 goto err;
1106         }
1107
1108         smb_fname->st = client_fname->st;
1109
1110 err:
1111         TALLOC_FREE(client_fname);
1112         DEBUG(10, ("Leaving with smb_fname->st.st_ex_mtime %s",
1113                    ctime(&(smb_fname->st.st_ex_mtime.tv_sec))));
1114         return status;
1115 }
1116
1117 static int um_fstat(vfs_handle_struct *handle,
1118                     files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1119 {
1120         int status = 0;
1121
1122         DEBUG(10, ("Entering with fsp->fsp_name->base_name "
1123                    "'%s'\n", fsp_str_dbg(fsp)));
1124
1125         status = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
1126         if (status != 0) {
1127                 goto out;
1128         }
1129
1130         if ((fsp->fsp_name == NULL) ||
1131             !is_in_media_files(fsp->fsp_name->base_name)) {
1132                 goto out;
1133         }
1134
1135         status = um_stat(handle, fsp->fsp_name);
1136         if (status != 0) {
1137                 goto out;
1138         }
1139
1140         *sbuf = fsp->fsp_name->st;
1141
1142 out:
1143         DEBUG(10, ("Leaving with fsp->fsp_name->st.st_ex_mtime %s\n",
1144                    fsp->fsp_name != NULL ?
1145                    ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec)) : "0"));
1146         return status;
1147 }
1148
1149 static int um_unlink(vfs_handle_struct *handle,
1150                      const struct smb_filename *smb_fname)
1151 {
1152         int status;
1153         struct smb_filename *client_fname = NULL;
1154
1155         DEBUG(10, ("Entering um_unlink\n"));
1156
1157         if (!is_in_media_files(smb_fname->base_name)) {
1158                 return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
1159         }
1160
1161         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1162                                             smb_fname,
1163                                             &client_fname);
1164         if (status != 0) {
1165                 goto err;
1166         }
1167
1168         status = SMB_VFS_NEXT_UNLINK(handle, client_fname);
1169
1170 err:
1171         TALLOC_FREE(client_fname);
1172         return status;
1173 }
1174
1175 static int um_chmod(vfs_handle_struct *handle,
1176                         const struct smb_filename *smb_fname,
1177                         mode_t mode)
1178 {
1179         int status;
1180         struct smb_filename *client_fname = NULL;
1181
1182         DEBUG(10, ("Entering um_chmod\n"));
1183
1184         if (!is_in_media_files(smb_fname->base_name)) {
1185                 return SMB_VFS_NEXT_CHMOD(handle, smb_fname, mode);
1186         }
1187
1188         status = alloc_get_client_smb_fname(handle,
1189                                 talloc_tos(),
1190                                 smb_fname,
1191                                 &client_fname);
1192         if (status != 0) {
1193                 goto err;
1194         }
1195
1196         status = SMB_VFS_NEXT_CHMOD(handle, client_fname, mode);
1197
1198 err:
1199         TALLOC_FREE(client_fname);
1200         return status;
1201 }
1202
1203 static int um_chown(vfs_handle_struct *handle,
1204                         const struct smb_filename *smb_fname,
1205                         uid_t uid,
1206                         gid_t gid)
1207 {
1208         int status;
1209         struct smb_filename *client_fname = NULL;
1210
1211         DEBUG(10, ("Entering um_chown\n"));
1212
1213         if (!is_in_media_files(smb_fname->base_name)) {
1214                 return SMB_VFS_NEXT_CHOWN(handle, smb_fname, uid, gid);
1215         }
1216
1217         status = alloc_get_client_smb_fname(handle,
1218                                 talloc_tos(),
1219                                 smb_fname,
1220                                 &client_fname);
1221         if (status != 0) {
1222                 goto err;
1223         }
1224
1225         status = SMB_VFS_NEXT_CHOWN(handle, client_fname, uid, gid);
1226
1227 err:
1228         TALLOC_FREE(client_fname);
1229         return status;
1230 }
1231
1232 static int um_lchown(vfs_handle_struct *handle,
1233                         const struct smb_filename *smb_fname,
1234                         uid_t uid,
1235                         gid_t gid)
1236 {
1237         int status;
1238         struct smb_filename *client_fname = NULL;
1239
1240         DEBUG(10, ("Entering um_lchown\n"));
1241         if (!is_in_media_files(smb_fname->base_name)) {
1242                 return SMB_VFS_NEXT_LCHOWN(handle, smb_fname, uid, gid);
1243         }
1244
1245         status = alloc_get_client_smb_fname(handle,
1246                                 talloc_tos(),
1247                                 smb_fname,
1248                                 &client_fname);
1249         if (status != 0) {
1250                 goto err;
1251         }
1252
1253         status = SMB_VFS_NEXT_LCHOWN(handle, client_fname, uid, gid);
1254
1255 err:
1256         TALLOC_FREE(client_fname);
1257         return status;
1258 }
1259
1260 static int um_chdir(vfs_handle_struct *handle,
1261                         const struct smb_filename *smb_fname)
1262 {
1263         int status;
1264         struct smb_filename *client_fname = NULL;
1265
1266         DEBUG(10, ("Entering um_chdir\n"));
1267
1268         if (!is_in_media_files(smb_fname->base_name)) {
1269                 return SMB_VFS_NEXT_CHDIR(handle, smb_fname);
1270         }
1271
1272         status = alloc_get_client_smb_fname(handle,
1273                                 talloc_tos(),
1274                                 smb_fname,
1275                                 &client_fname);
1276         if (status != 0) {
1277                 goto err;
1278         }
1279
1280         status = SMB_VFS_NEXT_CHDIR(handle, client_fname);
1281
1282 err:
1283         TALLOC_FREE(client_fname);
1284         return status;
1285 }
1286
1287 static int um_ntimes(vfs_handle_struct *handle,
1288                      const struct smb_filename *smb_fname,
1289                      struct smb_file_time *ft)
1290 {
1291         int status;
1292         struct smb_filename *client_fname = NULL;
1293
1294         DEBUG(10, ("Entering um_ntimes\n"));
1295
1296         if (!is_in_media_files(smb_fname->base_name)) {
1297                 return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
1298         }
1299
1300         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1301                                             smb_fname, &client_fname);
1302         if (status != 0) {
1303                 goto err;
1304         }
1305
1306         status = SMB_VFS_NEXT_NTIMES(handle, client_fname, ft);
1307
1308 err:
1309         TALLOC_FREE(client_fname);
1310         return status;
1311 }
1312
1313 static int um_symlink(vfs_handle_struct *handle,
1314                         const char *link_contents,
1315                         const struct smb_filename *new_smb_fname)
1316 {
1317         int status;
1318         char *client_link_contents = NULL;
1319         struct smb_filename *new_client_fname = NULL;
1320
1321         DEBUG(10, ("Entering um_symlink\n"));
1322
1323         if (!is_in_media_files(link_contents) &&
1324                         !is_in_media_files(new_smb_fname->base_name)) {
1325                 return SMB_VFS_NEXT_SYMLINK(handle,
1326                                 link_contents,
1327                                 new_smb_fname);
1328         }
1329
1330         status = alloc_get_client_path(handle, talloc_tos(),
1331                                 link_contents, &client_link_contents);
1332         if (status != 0) {
1333                 goto err;
1334         }
1335         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1336                                             new_smb_fname, &new_client_fname);
1337         if (status != 0) {
1338                 goto err;
1339         }
1340
1341         status = SMB_VFS_NEXT_SYMLINK(handle,
1342                                         client_link_contents,
1343                                         new_client_fname);
1344
1345 err:
1346         TALLOC_FREE(client_link_contents);
1347         TALLOC_FREE(new_client_fname);
1348         return status;
1349 }
1350
1351 static int um_readlink(vfs_handle_struct *handle,
1352                         const struct smb_filename *smb_fname,
1353                         char *buf,
1354                         size_t bufsiz)
1355 {
1356         int status;
1357         struct smb_filename *client_fname = NULL;
1358
1359         DEBUG(10, ("Entering um_readlink\n"));
1360
1361         if (!is_in_media_files(smb_fname->base_name)) {
1362                 return SMB_VFS_NEXT_READLINK(handle, smb_fname,
1363                                 buf, bufsiz);
1364         }
1365
1366         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1367                                             smb_fname, &client_fname);
1368         if (status != 0) {
1369                 goto err;
1370         }
1371
1372         status = SMB_VFS_NEXT_READLINK(handle, client_fname, buf, bufsiz);
1373
1374 err:
1375         TALLOC_FREE(client_fname);
1376         return status;
1377 }
1378
1379 static int um_link(vfs_handle_struct *handle,
1380                     const struct smb_filename *old_smb_fname,
1381                     const struct smb_filename *new_smb_fname)
1382 {
1383         int status;
1384         struct smb_filename *old_client_fname = NULL;
1385         struct smb_filename *new_client_fname = NULL;
1386
1387         DEBUG(10, ("Entering um_link\n"));
1388         if (!is_in_media_files(old_smb_fname->base_name) &&
1389                                 !is_in_media_files(new_smb_fname->base_name)) {
1390                 return SMB_VFS_NEXT_LINK(handle, old_smb_fname, new_smb_fname);
1391         }
1392
1393         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1394                                             old_smb_fname, &old_client_fname);
1395         if (status != 0) {
1396                 goto err;
1397         }
1398         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1399                                             new_smb_fname, &new_client_fname);
1400         if (status != 0) {
1401                 goto err;
1402         }
1403
1404         status = SMB_VFS_NEXT_LINK(handle, old_client_fname, new_client_fname);
1405
1406 err:
1407         TALLOC_FREE(old_client_fname);
1408         TALLOC_FREE(new_client_fname);
1409         return status;
1410 }
1411
1412 static int um_mknod(vfs_handle_struct *handle,
1413                     const struct smb_filename *smb_fname,
1414                     mode_t mode,
1415                     SMB_DEV_T dev)
1416 {
1417         int status;
1418         struct smb_filename *client_fname = NULL;
1419
1420         DEBUG(10, ("Entering um_mknod\n"));
1421         if (!is_in_media_files(smb_fname->base_name)) {
1422                 return SMB_VFS_NEXT_MKNOD(handle, smb_fname, mode, dev);
1423         }
1424
1425         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1426                                             smb_fname, &client_fname);
1427         if (status != 0) {
1428                 goto err;
1429         }
1430
1431         status = SMB_VFS_NEXT_MKNOD(handle, client_fname, mode, dev);
1432
1433 err:
1434         TALLOC_FREE(client_fname);
1435         return status;
1436 }
1437
1438 static struct smb_filename *um_realpath(vfs_handle_struct *handle,
1439                                 TALLOC_CTX *ctx,
1440                                 const struct smb_filename *smb_fname)
1441 {
1442         struct smb_filename *client_fname = NULL;
1443         struct smb_filename *result_fname = NULL;
1444         int status;
1445
1446         DEBUG(10, ("Entering um_realpath\n"));
1447
1448         if (!is_in_media_files(smb_fname->base_name)) {
1449                 return SMB_VFS_NEXT_REALPATH(handle, ctx, smb_fname);
1450         }
1451
1452         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1453                                             smb_fname, &client_fname);
1454         if (status != 0) {
1455                 goto err;
1456         }
1457
1458         result_fname = SMB_VFS_NEXT_REALPATH(handle, ctx, client_fname);
1459
1460 err:
1461         TALLOC_FREE(client_fname);
1462         return result_fname;
1463 }
1464
1465 static int um_chflags(vfs_handle_struct *handle,
1466                         const struct smb_filename *smb_fname,
1467                         unsigned int flags)
1468 {
1469         int status;
1470         struct smb_filename *client_fname = NULL;
1471
1472         DEBUG(10, ("Entering um_mknod\n"));
1473         if (!is_in_media_files(smb_fname->base_name)) {
1474                 return SMB_VFS_NEXT_CHFLAGS(handle, smb_fname, flags);
1475         }
1476
1477         status = alloc_get_client_smb_fname(handle, talloc_tos(),
1478                                             smb_fname, &client_fname);
1479         if (status != 0) {
1480                 goto err;
1481         }
1482
1483         status = SMB_VFS_NEXT_CHFLAGS(handle, client_fname, flags);
1484
1485 err:
1486         TALLOC_FREE(client_fname);
1487         return status;
1488 }
1489
1490 static NTSTATUS um_streaminfo(struct vfs_handle_struct *handle,
1491                               struct files_struct *fsp,
1492                               const struct smb_filename *smb_fname,
1493                               TALLOC_CTX *ctx,
1494                               unsigned int *num_streams,
1495                               struct stream_struct **streams)
1496 {
1497         NTSTATUS status;
1498         int ret;
1499         struct smb_filename *client_fname = NULL;
1500
1501         DEBUG(10, ("Entering um_streaminfo\n"));
1502
1503         if (!is_in_media_files(smb_fname->base_name)) {
1504                 return SMB_VFS_NEXT_STREAMINFO(handle, fsp, smb_fname,
1505                                                ctx, num_streams, streams);
1506         }
1507
1508         ret = alloc_get_client_smb_fname(handle,
1509                                 talloc_tos(),
1510                                 smb_fname,
1511                                 &client_fname);
1512         if (ret != 0) {
1513                 status = NT_STATUS_NO_MEMORY;
1514                 goto err;
1515         }
1516
1517         /*
1518          * This only works on files, so we don't have to worry about
1519          * our fake directory stat'ing here.  But what does this
1520          * function do, exactly?  Does it need extra modifications for
1521          * the Avid stuff?
1522          */
1523         status = SMB_VFS_NEXT_STREAMINFO(handle, fsp, client_fname,
1524                                          ctx, num_streams, streams);
1525 err:
1526         TALLOC_FREE(client_fname);
1527         return status;
1528 }
1529
1530 /*
1531  * Ignoring get_real_filename function because the default doesn't do
1532  * anything.
1533  */
1534
1535 static NTSTATUS um_get_nt_acl(vfs_handle_struct *handle,
1536                               const struct smb_filename *smb_fname,
1537                               uint32_t security_info,
1538                               TALLOC_CTX *mem_ctx,
1539                               struct security_descriptor **ppdesc)
1540 {
1541         NTSTATUS status;
1542         char *client_path = NULL;
1543         struct smb_filename *client_smb_fname = NULL;
1544         int ret;
1545
1546         DEBUG(10, ("Entering um_get_nt_acl\n"));
1547
1548         if (!is_in_media_files(smb_fname->base_name)) {
1549                 return SMB_VFS_NEXT_GET_NT_ACL(handle, smb_fname,
1550                                                security_info,
1551                                                mem_ctx, ppdesc);
1552         }
1553
1554         ret = alloc_get_client_path(handle, talloc_tos(),
1555                                     smb_fname->base_name, &client_path);
1556         if (ret != 0) {
1557                 status = map_nt_error_from_unix(errno);
1558                 goto err;
1559         }
1560
1561         client_smb_fname = synthetic_smb_fname(talloc_tos(),
1562                                         client_path,
1563                                         NULL,
1564                                         NULL,
1565                                         smb_fname->flags);
1566         if (client_smb_fname == NULL) {
1567                 TALLOC_FREE(client_path);
1568                 return NT_STATUS_NO_MEMORY;
1569         }
1570
1571         status = SMB_VFS_NEXT_GET_NT_ACL(handle, client_smb_fname,
1572                                          security_info,
1573                                          mem_ctx, ppdesc);
1574 err:
1575         TALLOC_FREE(client_smb_fname);
1576         TALLOC_FREE(client_path);
1577         return status;
1578 }
1579
1580 static SMB_ACL_T um_sys_acl_get_file(vfs_handle_struct *handle,
1581                                 const struct smb_filename *smb_fname,
1582                                 SMB_ACL_TYPE_T type,
1583                                 TALLOC_CTX *mem_ctx)
1584 {
1585         SMB_ACL_T ret;
1586         int saved_errno = 0;
1587         struct smb_filename *client_fname = NULL;
1588         int status;
1589
1590         DEBUG(10, ("Entering um_sys_acl_get_file\n"));
1591
1592         if (!is_in_media_files(smb_fname->base_name)) {
1593                 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, smb_fname,
1594                                                      type, mem_ctx);
1595         }
1596
1597         status = alloc_get_client_smb_fname(handle,
1598                                 talloc_tos(),
1599                                 smb_fname,
1600                                 &client_fname);
1601         if (status != 0) {
1602                 ret = (SMB_ACL_T)NULL;
1603                 goto err;
1604         }
1605
1606         ret = SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, client_fname,
1607                                 type, mem_ctx);
1608
1609 err:
1610         if (ret == (SMB_ACL_T)NULL) {
1611                 saved_errno = errno;
1612         }
1613         TALLOC_FREE(client_fname);
1614         if (saved_errno != 0) {
1615                 errno = saved_errno;
1616         }
1617         return ret;
1618 }
1619
1620 static int um_sys_acl_set_file(vfs_handle_struct *handle,
1621                                const struct smb_filename *smb_fname,
1622                                SMB_ACL_TYPE_T acltype,
1623                                SMB_ACL_T theacl)
1624 {
1625         int status;
1626         int saved_errno = 0;
1627         struct smb_filename *client_fname = NULL;
1628
1629         DEBUG(10, ("Entering um_sys_acl_set_file\n"));
1630
1631         if (!is_in_media_files(smb_fname->base_name)) {
1632                 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, smb_fname,
1633                                                      acltype, theacl);
1634         }
1635
1636         status = alloc_get_client_smb_fname(handle,
1637                                 talloc_tos(),
1638                                 smb_fname,
1639                                 &client_fname);
1640         if (status != 0) {
1641                 goto err;
1642         }
1643
1644         status = SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, client_fname,
1645                                                acltype, theacl);
1646
1647 err:
1648         if (status == -1) {
1649                 saved_errno = errno;
1650         }
1651         TALLOC_FREE(client_fname);
1652         if (saved_errno != 0) {
1653                 errno = saved_errno;
1654         }
1655         return status;
1656 }
1657
1658 static int um_sys_acl_delete_def_file(vfs_handle_struct *handle,
1659                                 const struct smb_filename *smb_fname)
1660 {
1661         int status;
1662         int saved_errno = 0;
1663         struct smb_filename *client_fname = NULL;
1664
1665         DEBUG(10, ("Entering um_sys_acl_delete_def_file\n"));
1666
1667         if (!is_in_media_files(smb_fname->base_name)) {
1668                 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle,
1669                                 smb_fname);
1670         }
1671
1672         status = alloc_get_client_smb_fname(handle,
1673                                 talloc_tos(),
1674                                 smb_fname,
1675                                 &client_fname);
1676         if (status != 0) {
1677                 goto err;
1678         }
1679
1680         status = SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, client_fname);
1681
1682 err:
1683         if (status == -1) {
1684                 saved_errno = errno;
1685         }
1686         TALLOC_FREE(client_fname);
1687         if (saved_errno != 0) {
1688                 errno = saved_errno;
1689         }
1690         return status;
1691 }
1692
1693 static ssize_t um_getxattr(struct vfs_handle_struct *handle,
1694                            const struct smb_filename *smb_fname,
1695                            const char *name,
1696                            void *value,
1697                            size_t size)
1698 {
1699         ssize_t ret;
1700         struct smb_filename *client_fname = NULL;
1701         int status;
1702
1703         DEBUG(10, ("Entering um_getxattr\n"));
1704         if (!is_in_media_files(smb_fname->base_name)) {
1705                 return SMB_VFS_NEXT_GETXATTR(handle, smb_fname,
1706                                 name, value, size);
1707         }
1708
1709         status = alloc_get_client_smb_fname(handle,
1710                                 talloc_tos(),
1711                                 smb_fname,
1712                                 &client_fname);
1713         if (status != 0) {
1714                 ret = -1;
1715                 goto err;
1716         }
1717
1718         ret = SMB_VFS_NEXT_GETXATTR(handle, client_fname, name, value, size);
1719 err:
1720         TALLOC_FREE(client_fname);
1721         return ret;
1722 }
1723
1724 static ssize_t um_listxattr(struct vfs_handle_struct *handle,
1725                             const struct smb_filename *smb_fname,
1726                             char *list,
1727                             size_t size)
1728 {
1729         ssize_t ret;
1730         struct smb_filename *client_fname = NULL;
1731         int status;
1732
1733         DEBUG(10, ("Entering um_listxattr\n"));
1734
1735         if (!is_in_media_files(smb_fname->base_name)) {
1736                 return SMB_VFS_NEXT_LISTXATTR(handle, smb_fname, list, size);
1737         }
1738
1739         status = alloc_get_client_smb_fname(handle,
1740                                 talloc_tos(),
1741                                 smb_fname,
1742                                 &client_fname);
1743         if (status != 0) {
1744                 ret = -1;
1745                 goto err;
1746         }
1747
1748         ret = SMB_VFS_NEXT_LISTXATTR(handle, client_fname, list, size);
1749
1750 err:
1751         TALLOC_FREE(client_fname);
1752         return ret;
1753 }
1754
1755 static int um_removexattr(struct vfs_handle_struct *handle,
1756                           const struct smb_filename *smb_fname,
1757                           const char *name)
1758 {
1759         int status;
1760         struct smb_filename *client_fname = NULL;
1761
1762         DEBUG(10, ("Entering um_removexattr\n"));
1763
1764         if (!is_in_media_files(smb_fname->base_name)) {
1765                 return SMB_VFS_NEXT_REMOVEXATTR(handle, smb_fname, name);
1766         }
1767
1768         status = alloc_get_client_smb_fname(handle,
1769                                 talloc_tos(),
1770                                 smb_fname,
1771                                 &client_fname);
1772         if (status != 0) {
1773                 goto err;
1774         }
1775
1776         status = SMB_VFS_NEXT_REMOVEXATTR(handle, client_fname, name);
1777
1778 err:
1779         TALLOC_FREE(client_fname);
1780         return status;
1781 }
1782
1783 static int um_setxattr(struct vfs_handle_struct *handle,
1784                        const struct smb_filename *smb_fname,
1785                        const char *name,
1786                        const void *value,
1787                        size_t size,
1788                        int flags)
1789 {
1790         int status;
1791         struct smb_filename *client_fname = NULL;
1792
1793         DEBUG(10, ("Entering um_setxattr\n"));
1794
1795         if (!is_in_media_files(smb_fname->base_name)) {
1796                 return SMB_VFS_NEXT_SETXATTR(handle, smb_fname, name, value,
1797                                              size, flags);
1798         }
1799
1800         status = alloc_get_client_smb_fname(handle,
1801                                 talloc_tos(),
1802                                 smb_fname,
1803                                 &client_fname);
1804         if (status != 0) {
1805                 goto err;
1806         }
1807
1808         status = SMB_VFS_NEXT_SETXATTR(handle, client_fname, name, value,
1809                                        size, flags);
1810
1811 err:
1812         TALLOC_FREE(client_fname);
1813         return status;
1814 }
1815
1816 static int um_connect(vfs_handle_struct *handle,
1817                          const char *service,
1818                          const char *user)
1819 {
1820         int rc;
1821         struct um_config_data *config;
1822         int enumval;
1823
1824         rc = SMB_VFS_NEXT_CONNECT(handle, service, user);
1825         if (rc != 0) {
1826                 return rc;
1827         }
1828
1829         config = talloc_zero(handle->conn, struct um_config_data);
1830         if (!config) {
1831                 DEBUG(1, ("talloc_zero() failed\n"));
1832                 errno = ENOMEM;
1833                 return -1;
1834         }
1835
1836         enumval = lp_parm_enum(SNUM(handle->conn), UM_PARAM_TYPE_NAME,
1837                                "clientid", um_clientid, UM_CLIENTID_NAME);
1838         if (enumval == -1) {
1839                 DEBUG(1, ("value for %s: type unknown\n",
1840                           UM_PARAM_TYPE_NAME));
1841                 return -1;
1842         }
1843         config->clientid = (enum um_clientid)enumval;
1844
1845         SMB_VFS_HANDLE_SET_DATA(handle, config,
1846                                 NULL, struct um_config_data,
1847                                 return -1);
1848
1849         return 0;
1850 }
1851
1852 /* VFS operations structure */
1853
1854 static struct vfs_fn_pointers vfs_um_fns = {
1855         .connect_fn = um_connect,
1856
1857         /* Disk operations */
1858
1859         .statvfs_fn = um_statvfs,
1860
1861         /* Directory operations */
1862
1863         .opendir_fn = um_opendir,
1864         .fdopendir_fn = um_fdopendir,
1865         .readdir_fn = um_readdir,
1866         .seekdir_fn = um_seekdir,
1867         .telldir_fn = um_telldir,
1868         .rewind_dir_fn = um_rewinddir,
1869         .mkdir_fn = um_mkdir,
1870         .rmdir_fn = um_rmdir,
1871         .closedir_fn = um_closedir,
1872
1873         /* File operations */
1874
1875         .open_fn = um_open,
1876         .create_file_fn = um_create_file,
1877         .rename_fn = um_rename,
1878         .stat_fn = um_stat,
1879         .lstat_fn = um_lstat,
1880         .fstat_fn = um_fstat,
1881         .unlink_fn = um_unlink,
1882         .chmod_fn = um_chmod,
1883         .chown_fn = um_chown,
1884         .lchown_fn = um_lchown,
1885         .chdir_fn = um_chdir,
1886         .ntimes_fn = um_ntimes,
1887         .symlink_fn = um_symlink,
1888         .readlink_fn = um_readlink,
1889         .link_fn = um_link,
1890         .mknod_fn = um_mknod,
1891         .realpath_fn = um_realpath,
1892         .chflags_fn = um_chflags,
1893         .streaminfo_fn = um_streaminfo,
1894
1895         /* NT ACL operations. */
1896
1897         .get_nt_acl_fn = um_get_nt_acl,
1898
1899         /* POSIX ACL operations. */
1900
1901         .sys_acl_get_file_fn = um_sys_acl_get_file,
1902         .sys_acl_set_file_fn = um_sys_acl_set_file,
1903         .sys_acl_delete_def_file_fn = um_sys_acl_delete_def_file,
1904
1905         /* EA operations. */
1906         .getxattr_fn = um_getxattr,
1907         .getxattrat_send_fn = vfs_not_implemented_getxattrat_send,
1908         .getxattrat_recv_fn = vfs_not_implemented_getxattrat_recv,
1909         .listxattr_fn = um_listxattr,
1910         .removexattr_fn = um_removexattr,
1911         .setxattr_fn = um_setxattr,
1912 };
1913
1914 static_decl_vfs;
1915 NTSTATUS vfs_unityed_media_init(TALLOC_CTX *ctx)
1916 {
1917         NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
1918                                         "unityed_media", &vfs_um_fns);
1919         if (!NT_STATUS_IS_OK(ret)) {
1920                 return ret;
1921         }
1922
1923         vfs_um_debug_level = debug_add_class("unityed_media");
1924
1925         if (vfs_um_debug_level == -1) {
1926                 vfs_um_debug_level = DBGC_VFS;
1927                 DEBUG(1, ("unityed_media_init: Couldn't register custom "
1928                           "debugging class.\n"));
1929         }
1930
1931         return ret;
1932 }