source3/modules/vfs_media_harmony.c

   1 /*
   2  * $Id: media_harmony.c,v 1.1 2007/11/06 10:07:22 stuart_hc Exp $
   3  *
   4  * Samba VFS module supporting multiple AVID clients sharing media.
   5  *
   6  * Copyright (C) 2005  Philip de Nier <philipn@users.sourceforge.net>
   7  * Copyright (C) 2012  Andrew Klaassen <clawsoon@yahoo.com>
   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 /*
  27  * Media Harmony is a Samba VFS module that allows multiple AVID
  28  * clients to share media. Each client sees their own copy of the
  29  * AVID msmMMOB.mdb and msmFMID.pmr files and Creating directories.
  30  *
  31  * Add this module to the vfs objects option in your Samba share
  32  * configuration.
  33  * eg.
  34  *
  35  *   [avid_win]
  36  *      path = /video
  37  *      vfs objects = media_harmony
  38  *      ...
  39  *
  40  * It is recommended that you separate out Samba shares for Mac
  41  * and Windows clients, and add the following options to the shares
  42  * for Windows clients  (NOTE: replace @ with *):
  43  *
  44  *      veto files = /.DS_Store/._@/.Trash@/.Spotlight@/.hidden/.hotfiles@/.vol/
  45  *      delete veto files = yes
  46  *
  47  * This prevents hidden files from Mac clients interfering with Windows
  48  * clients. If you find any more problem hidden files then add them to
  49  * the list.
  50  *
  51  *
  52  * Andrew Klaassen, 2012-03-14
  53  * To prevent Avid clients from interrupting each other (via Avid's habit
  54  * of launching a database refresh whenever it notices an mtime update
  55  * on media directories, i.e. whenever one editor adds new material to a
  56  * shared share), I've added code that causes stat information for anything
  57  * directly under "Avid MediaFile/MXF" to be taken from
  58  * dirname_clientaddr_clientuser if it exists.  These files ~aren't~
  59  * hidden, unlike the client-suffixed database files.
  60  *
  61  * For example, stat information for
  62  *      Avid MediaFiles/MXF/1
  63  * will come from
  64  *      Avid MediaFiles/MXF/1_192.168.1.10_dave
  65  * for dave working on 192.168.1.10, but will come from
  66  *      Avid MediaFile/MXF/1_192.168.1.11_susan
  67  * for susan working on 192.168.1.11.  If those alternate
  68  * directories don't exist, the user will get the actual directory's stat
  69  * info.  When an editor wants to force a database refresh, they update
  70  * the mtime on "their" file.  This will cause Avid
  71  * on that client to see an updated mtime for "Avid MediaFiles/MXF/1",
  72  * which will trigger an Avid database refresh just for that editor.
  73  *
  74  *
  75  * Notes:
  76  * - This module is designed to work with AVID editing applications that
  77  * look in the Avid MediaFiles or OMFI MediaFiles directory for media.
  78  * It is not designed to work as expected in all circumstances for
  79  * general use. For example: it is possibly to open client specific
  80  * files such as msmMMOB.mdb_192.168.1.10_userx even though is doesn't
  81  * show up in a directory listing.
  82  *
  83  */
  84
  85
  86 #include "includes.h"
  87 #include "system/filesys.h"
  88 #include "smbd/smbd.h"
  89 #include "../smbd/globals.h"
  90 #include "auth.h"
  91 #include "../lib/tsocket/tsocket.h"
  92
  93 #define MH_INFO_DEBUG 10
  94 #define MH_ERR_DEBUG 0
  95
  96 static const char* MDB_FILENAME = "msmMMOB.mdb";
  97 static const size_t MDB_FILENAME_LEN = 11;
  98 static const char* PMR_FILENAME = "msmFMID.pmr";
  99 static const size_t PMR_FILENAME_LEN = 11;
 100 static const char* CREATING_DIRNAME = "Creating";
 101 static const size_t CREATING_DIRNAME_LEN = 8;
 102 static const char* AVID_MEDIAFILES_DIRNAME = "Avid MediaFiles";
 103 static const size_t AVID_MEDIAFILES_DIRNAME_LEN = 15;
 104 static const char* OMFI_MEDIAFILES_DIRNAME = "OMFI MediaFiles";
 105 static const size_t OMFI_MEDIAFILES_DIRNAME_LEN = 15;
 106 static const char* APPLE_DOUBLE_PREFIX = "._";
 107 static const size_t APPLE_DOUBLE_PREFIX_LEN = 2;
 108 static const char* AVID_MXF_DIRNAME = "Avid MediaFiles/MXF";
 109 static const size_t AVID_MXF_DIRNAME_LEN = 19;
 110
 111 static int vfs_mh_debug_level = DBGC_VFS;
 112
 113 /* supplements the directory list stream */
 114 typedef struct mh_dirinfo_struct
 115 {
 116         DIR* dirstream;
 117         char *dirpath;
 118         char *clientPath;
 119         bool isInMediaFiles;
 120         char *clientMDBFilename;
 121         char *clientPMRFilename;
 122         char *clientCreatingDirname;
 123 } mh_dirinfo_struct;
 124
 125
 126 /* Add "_<ip address>_<user name>" suffix to path or filename.
 127  *
 128  * Success: return 0
 129  * Failure: set errno, path NULL, return -1
 130  */
 131 static int alloc_append_client_suffix(vfs_handle_struct *handle,
 132                 char **path)
 133 {
 134         int status = 0;
 135         char *raddr = NULL;
 136
 137         DEBUG(MH_INFO_DEBUG, ("Entering with *path '%s'\n", *path));
 138
 139         raddr = tsocket_address_inet_addr_string(
 140                         handle->conn->sconn->remote_address, talloc_tos());
 141         if (raddr == NULL)
 142         {
 143                 errno = ENOMEM;
 144                 status = -1;
 145                 goto err;
 146         }
 147
 148         /* talloc_asprintf_append uses talloc_realloc, which
 149          * frees original 'path' memory so we don't have to.
 150          */
 151         *path = talloc_asprintf_append(*path, "_%s_%s",
 152                 raddr,
 153                 handle->conn->session_info->unix_info->sanitized_username);
 154         if (*path == NULL)
 155         {
 156                 DEBUG(MH_ERR_DEBUG, ("alloc_append_client_suffix "
 157                                         "out of memory\n"));
 158                 errno = ENOMEM;
 159                 status = -1;
 160                 goto err;
 161         }
 162         DEBUG(MH_INFO_DEBUG, ("Leaving with *path '%s'\n", *path));
 163 err:
 164         TALLOC_FREE(raddr);
 165         return status;
 166 }
 167
 168
 169 /* Returns True if the file or directory begins with the appledouble
 170  * prefix.
 171  */
 172 static bool is_apple_double(const char* fname)
 173 {
 174         bool ret = False;
 175
 176         DEBUG(MH_INFO_DEBUG, ("Entering with fname '%s'\n", fname));
 177
 178         if (strncmp(APPLE_DOUBLE_PREFIX, fname, APPLE_DOUBLE_PREFIX_LEN)
 179                         == 0)
 180         {
 181                 ret = True;
 182         }
 183         DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n",
 184                                 ret == True ? "True" : "False"));
 185         return ret;
 186 }
 187
 188 static bool starts_with_media_dir(const char* media_dirname,
 189                 size_t media_dirname_len, const char* path)
 190 {
 191         bool ret = False;
 192         const char *path_start;
 193
 194         DEBUG(MH_INFO_DEBUG, ("Entering with media_dirname '%s' "
 195                               "path '%s'\n", media_dirname, path));
 196
 197         /* Sometimes Samba gives us "./OMFI MediaFiles". */
 198         if (strncmp(path, "./", 2) == 0)
 199         {
 200                 path_start = &path[2];
 201         }
 202         else {
 203                 path_start = path;
 204         }
 205
 206         if (strncmp(media_dirname, path_start, media_dirname_len) == 0
 207                         &&
 208                 (
 209                         path_start[media_dirname_len] == '\0'
 210                         ||
 211                         path_start[media_dirname_len] == '/'
 212                 )
 213         )
 214         {
 215                 ret = True;
 216         }
 217
 218         DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n",
 219                                 ret == True ? "True" : "False"));
 220         return ret;
 221 }
 222
 223 /*
 224  * Returns True if the file or directory referenced by the path is below
 225  * the AVID_MEDIAFILES_DIRNAME or OMFI_MEDIAFILES_DIRNAME directory
 226  * The AVID_MEDIAFILES_DIRNAME and OMFI_MEDIAFILES_DIRNAME are assumed to
 227  * be in the root directory, which is generally a safe assumption
 228  * in the fixed-path world of Avid.
 229  */
 230 static bool is_in_media_files(const char* path)
 231 {
 232         bool ret = False;
 233
 234         DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n", path));
 235
 236         if (
 237                 starts_with_media_dir(AVID_MEDIAFILES_DIRNAME,
 238                                 AVID_MEDIAFILES_DIRNAME_LEN, path)
 239                 ||
 240                 starts_with_media_dir(OMFI_MEDIAFILES_DIRNAME,
 241                                 OMFI_MEDIAFILES_DIRNAME_LEN, path)
 242         )
 243         {
 244                 ret = True;
 245         }
 246         DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n",
 247                                 ret == True ? "True" : "False"));
 248         return ret;
 249 }
 250
 251 /*
 252  * Returns depth of path under media directory.  Deals with the
 253  * occasional ..../. and ..../.. paths that get passed to stat.
 254  *
 255  * Assumes is_in_media_files has already been called and has returned
 256  * true for the path; if it hasn't, this function will likely crash
 257  * and burn.
 258  *
 259  * Not foolproof; something like "Avid MediaFiles/MXF/../foo/1"
 260  * would fool it.  Haven't seen paths like that getting to the
 261  * stat function yet, so ignoring that possibility for now.
 262  */
 263 static int depth_from_media_dir(const char* media_dirname,
 264                 size_t media_dirname_len, const char* path)
 265 {
 266         int transition_count = 0;
 267         const char *path_start;
 268         const char *pathPtr;
 269
 270         DEBUG(MH_INFO_DEBUG, ("Entering with media_dirname '%s' "
 271                               "path '%s'\n", media_dirname, path));
 272
 273         /* Sometimes Samba gives us "./OMFI MediaFiles". */
 274         if (strncmp(path, "./", 2) == 0)
 275         {
 276                 path_start = &path[2];
 277         }
 278         else {
 279                 path_start = path;
 280         }
 281
 282         if (path_start[media_dirname_len] == '\0')
 283         {
 284                 goto out;
 285         }
 286
 287         pathPtr = &path_start[media_dirname_len + 1];
 288
 289         while(1)
 290         {
 291                 if (*pathPtr == '\0' || *pathPtr == '/')
 292                 {
 293                         if (
 294                                 *(pathPtr - 1) == '.'
 295                                         &&
 296                                 *(pathPtr - 2) == '.'
 297                                         &&
 298                                 *(pathPtr - 3) == '/'
 299                         )
 300                         {
 301                                 transition_count--;
 302                         }
 303                         else if (
 304                                 !
 305                                 (
 306                                         *(pathPtr - 1) == '/'
 307                                         ||
 308                                         (
 309                                                 *(pathPtr - 1) == '.'
 310                                                         &&
 311                                                 *(pathPtr - 2) == '/'
 312                                         )
 313                                 )
 314                         )
 315                         {
 316                                 transition_count++;
 317                         }
 318                 }
 319                 if (*pathPtr == '\0')
 320                 {
 321                         break;
 322                 }
 323                 pathPtr++;
 324         }
 325
 326         DEBUG(MH_INFO_DEBUG, ("Leaving with transition_count '%i'\n",
 327                                 transition_count));
 328 out:
 329         return transition_count;
 330 }
 331
 332 /* Identifies MDB and PMR files at end of path. */
 333 static bool is_avid_database(
 334                 char *path,
 335                 size_t path_len,
 336                 const char *avid_db_filename,
 337                 const size_t avid_db_filename_len)
 338 {
 339         bool ret = False;
 340
 341         DEBUG(MH_INFO_DEBUG, ("Entering with path '%s', "
 342                               "avid_db_filename '%s', "
 343                               "path_len '%i', "
 344                               "avid_db_filename_len '%i'\n",
 345                               path, avid_db_filename,
 346                               (int)path_len, (int)avid_db_filename_len));
 347
 348         if (
 349                 path_len > avid_db_filename_len
 350                         &&
 351                 strcmp(&path[path_len - avid_db_filename_len],
 352                                 avid_db_filename) == 0
 353                         &&
 354                 (
 355                         path[path_len - avid_db_filename_len - 1] == '/'
 356                         ||
 357                         (path_len > avid_db_filename_len
 358                                 + APPLE_DOUBLE_PREFIX_LEN
 359                                 &&
 360                         path[path_len - avid_db_filename_len
 361                                 - APPLE_DOUBLE_PREFIX_LEN - 1] == '/'
 362                                 &&
 363                         is_apple_double(&path[path_len
 364                                 - avid_db_filename_len
 365                                 - APPLE_DOUBLE_PREFIX_LEN]))
 366                 )
 367         )
 368         {
 369                 ret = True;
 370         }
 371         DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n",
 372                                 ret == True ? "True" : "False"));
 373         return ret;
 374 }
 375
 376
 377 /* Add client suffix to paths to MDB_FILENAME, PMR_FILENAME and
 378  * CREATING_SUBDIRNAME.
 379  *
 380  * Caller must free newPath.
 381  *
 382  * Success: return 0
 383  * Failure: set errno, newPath NULL, return -1
 384  */
 385 static int alloc_get_client_path(vfs_handle_struct *handle,
 386                 TALLOC_CTX *ctx,
 387                 const char *path,
 388                 char **newPath)
 389 {
 390         /* replace /CREATING_DIRNAME/ or /._CREATING_DIRNAME/
 391          * directory in path - potentially in middle of path
 392          * - with suffixed name.
 393          */
 394         int status = 0;
 395         char* pathPtr;
 396         size_t intermPathLen;
 397
 398         DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n", path));
 399
 400         *newPath = talloc_strdup(ctx, path);
 401         if (*newPath == NULL)
 402         {
 403                 DEBUG(MH_ERR_DEBUG, ("alloc_get_client_path ENOMEM #1\n"));
 404                 errno = ENOMEM;
 405                 status = -1;
 406                 goto out;
 407         }
 408         DEBUG(MH_INFO_DEBUG, ("newPath #1 %s\n", *newPath));
 409         if (
 410                 (pathPtr = strstr(path, CREATING_DIRNAME)) != NULL
 411                         &&
 412                 (
 413                         *(pathPtr + CREATING_DIRNAME_LEN) == '\0'
 414                         ||
 415                         *(pathPtr + CREATING_DIRNAME_LEN) == '/'
 416                 )
 417                         &&
 418                 (
 419                         (pathPtr - path > 0
 420                                 &&
 421                          *(pathPtr - 1) == '/')
 422                         ||
 423                         (pathPtr - path > APPLE_DOUBLE_PREFIX_LEN
 424                                 &&
 425                         *(pathPtr - APPLE_DOUBLE_PREFIX_LEN - 1) == '/'
 426                                 &&
 427                          is_apple_double(pathPtr - APPLE_DOUBLE_PREFIX_LEN))
 428                 )
 429         )
 430         {
 431                 /* Insert client suffix into path. */
 432                 (*newPath)[pathPtr - path + CREATING_DIRNAME_LEN] = '\0';
 433                 DEBUG(MH_INFO_DEBUG, ("newPath #2 %s\n", *newPath));
 434
 435                 if ((status = alloc_append_client_suffix(handle, newPath)))
 436                 {
 437                         goto out;
 438                 }
 439
 440                 DEBUG(MH_INFO_DEBUG, ("newPath #3 %s\n", *newPath));
 441                 *newPath = talloc_strdup_append(*newPath,
 442                                 pathPtr + CREATING_DIRNAME_LEN);
 443                 if (*newPath == NULL)
 444                 {
 445                         DEBUG(MH_ERR_DEBUG, ("alloc_get_client_path "
 446                                                 "ENOMEM #2\n"));
 447                         errno = ENOMEM;
 448                         status = -1;
 449                         goto out;
 450                 }
 451                 DEBUG(MH_INFO_DEBUG, ("newPath #4 %s\n", *newPath));
 452         }
 453
 454         /* replace /MDB_FILENAME or /PMR_FILENAME or /._MDB_FILENAME
 455          * or /._PMR_FILENAME at newPath end with suffixed name.
 456          */
 457         intermPathLen = strlen(*newPath);
 458         if (
 459                 is_avid_database(*newPath, intermPathLen,
 460                         MDB_FILENAME, MDB_FILENAME_LEN)
 461                 ||
 462                 is_avid_database(*newPath, intermPathLen,
 463                         PMR_FILENAME, PMR_FILENAME_LEN)
 464         )
 465         {
 466                 DEBUG(MH_INFO_DEBUG, ("newPath #5 %s\n", *newPath));
 467                 if ((status = alloc_append_client_suffix(handle, newPath)))
 468                 {
 469                         goto out;
 470                 }
 471                 DEBUG(MH_INFO_DEBUG, ("newPath #6 %s\n", *newPath));
 472         }
 473 out:
 474         /* newPath must be freed in caller. */
 475         DEBUG(MH_INFO_DEBUG, ("Leaving with *newPath '%s'\n", *newPath));
 476         return status;
 477 }
 478
 479 /*
 480  * Success: return 0
 481  * Failure: set errno, return -1
 482  */
 483 static int alloc_get_client_smb_fname(struct vfs_handle_struct *handle,
 484                 TALLOC_CTX *ctx,
 485                 const struct smb_filename *smb_fname,
 486                 struct smb_filename **clientFname)
 487 {
 488         int status = 0;
 489
 490         DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n",
 491                               smb_fname->base_name));
 492
 493         *clientFname = cp_smb_filename(ctx, smb_fname);
 494         if ((*clientFname) == NULL) {
 495                 DEBUG(MH_ERR_DEBUG, ("alloc_get_client_smb_fname "
 496                                         "NTERR\n"));
 497                 errno = ENOMEM;
 498                 status = -1;
 499                 goto err;
 500         }
 501         if ((status = alloc_get_client_path(handle, ctx,
 502                                 smb_fname->base_name,
 503                                 &(*clientFname)->base_name)))
 504         {
 505                 goto err;
 506         }
 507         DEBUG(MH_INFO_DEBUG, ("Leaving with (*clientFname)->base_name "
 508                                 "'%s'\n", (*clientFname)->base_name));
 509 err:
 510         return status;
 511 }
 512
 513
 514 /*
 515  * Success: return 0
 516  * Failure: set errno, return -1
 517  */
 518 static int alloc_set_client_dirinfo_path(struct vfs_handle_struct *handle,
 519                 TALLOC_CTX *ctx,
 520                 char **path,
 521                 const char *avid_db_filename)
 522 {
 523         int status = 0;
 524
 525         DEBUG(MH_INFO_DEBUG, ("Entering with avid_db_filename '%s'\n",
 526                               avid_db_filename));
 527
 528         if ((*path = talloc_strdup(ctx, avid_db_filename)) == NULL)
 529         {
 530                 DEBUG(MH_ERR_DEBUG, ("alloc_set_client_dirinfo_path "
 531                                         "ENOMEM\n"));
 532                 errno = ENOMEM;
 533                 status = -1;
 534                 goto err;
 535         }
 536         if ((status = alloc_append_client_suffix(handle, path)))
 537         {
 538                 goto err;
 539         }
 540         DEBUG(MH_INFO_DEBUG, ("Leaving with *path '%s'\n", *path));
 541 err:
 542         return status;
 543 }
 544
 545 /*
 546  * Replace mtime on clientFname with mtime from client-suffixed
 547  * equivalent, if it exists.
 548  *
 549  * Success: return 0
 550  * Failure: set errno, return -1
 551  */
 552 static int set_fake_mtime(vfs_handle_struct *handle,
 553                 TALLOC_CTX *ctx,
 554                 struct smb_filename **clientFname,
 555                 int (*statFn)(const char *, SMB_STRUCT_STAT *, bool))
 556 {
 557         int status = 0;
 558         char *statPath;
 559         SMB_STRUCT_STAT fakeStat;
 560         int copy_len;
 561
 562         DEBUG(MH_INFO_DEBUG, ("Entering with (*clientFname)->base_name "
 563                               "'%s', (*clientFname)->st.st_ex_mtime %s",
 564                               (*clientFname)->base_name,
 565                               ctime(&((*clientFname)->st.st_ex_mtime.tv_sec))));
 566
 567         if (
 568                 depth_from_media_dir(AVID_MXF_DIRNAME,
 569                                 AVID_MXF_DIRNAME_LEN,
 570                                 (*clientFname)->base_name)
 571                         != 1
 572                         &&
 573                 depth_from_media_dir(OMFI_MEDIAFILES_DIRNAME,
 574                                 OMFI_MEDIAFILES_DIRNAME_LEN,
 575                                 (*clientFname)->base_name)
 576                         != 0
 577         )
 578         {
 579                 goto out;
 580         }
 581
 582         copy_len = strlen((*clientFname)->base_name);
 583
 584         /* Hack to deal with occasional "Avid MediaFiles/MXF/1/." paths.
 585          * We know we're under a media dir, so paths are at least 2 chars
 586          * long.
 587          */
 588         if ((*clientFname)->base_name[copy_len - 1] == '.' &&
 589                         (*clientFname)->base_name[copy_len - 2] == '/')
 590         {
 591                 copy_len -= 2;
 592         }
 593
 594         if (((statPath = talloc_strndup(ctx,
 595                         (*clientFname)->base_name, copy_len)) == NULL))
 596         {
 597                 errno = ENOMEM;
 598                 status = -1;
 599                 goto err;
 600         }
 601         if ((status = alloc_append_client_suffix(handle, &statPath)))
 602         {
 603                 goto err;
 604         }
 605
 606         DEBUG(MH_INFO_DEBUG, ("Fake stat'ing '%s'\n", statPath));
 607         if (statFn(statPath, &fakeStat,
 608                         lp_fake_directory_create_times(SNUM(handle->conn))))
 609         {
 610                 /* This can fail for legitimate reasons - i.e. the
 611                  * fakeStat directory doesn't exist, which is okay
 612                  * - so we don't set status.  But if it does fail,
 613                  * we need to skip over the mtime assignment.
 614                  */
 615                 goto err;
 616         }
 617
 618         DEBUG(MH_INFO_DEBUG, ("Setting fake mtime from '%s'\n", statPath));
 619         (*clientFname)->st.st_ex_mtime = fakeStat.st_ex_mtime;
 620 err:
 621         TALLOC_FREE(statPath);
 622 out:
 623         DEBUG(MH_INFO_DEBUG, ("Leaving with (*clientFname)->base_name "
 624                         "'%s', (*clientFname)->st.st_ex_mtime %s",
 625                         (*clientFname)->base_name,
 626                         ctime(&((*clientFname)->st.st_ex_mtime.tv_sec))));
 627         return status;
 628 }
 629
 630 /*
 631  * Success: return 0
 632  * Failure: set errno, return -1
 633  */
 634 static int mh_statvfs(struct vfs_handle_struct *handle,
 635                 const struct smb_filename *smb_fname,
 636                 struct vfs_statvfs_struct *statbuf)
 637 {
 638         int status;
 639         struct smb_filename *clientFname = NULL;
 640
 641         DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n",
 642                         smb_fname->base_name));
 643
 644         if (!is_in_media_files(smb_fname->base_name))
 645         {
 646                 status = SMB_VFS_NEXT_STATVFS(handle, smb_fname, statbuf);
 647                 goto out;
 648         }
 649
 650         status = alloc_get_client_smb_fname(handle,
 651                                 talloc_tos(),
 652                                 smb_fname,
 653                                 &clientFname);
 654         if (status != 0) {
 655                 goto err;
 656         }
 657
 658         status = SMB_VFS_NEXT_STATVFS(handle, clientFname, statbuf);
 659 err:
 660         TALLOC_FREE(clientFname);
 661 out:
 662         DEBUG(MH_INFO_DEBUG, ("Leaving with path '%s'\n",
 663                         smb_fname->base_name));
 664         return status;
 665 }
 666
 667 static int alloc_set_client_dirinfo(vfs_handle_struct *handle,
 668                 const char *fname,
 669                 struct mh_dirinfo_struct **dirInfo)
 670 {
 671         int status = 0;
 672         char *clientPath;
 673         TALLOC_CTX *ctx;
 674
 675         DEBUG(MH_INFO_DEBUG, ("Entering with fname '%s'\n", fname));
 676
 677         *dirInfo = talloc(NULL, struct mh_dirinfo_struct);
 678         if (*dirInfo == NULL)
 679         {
 680                 goto err;
 681         }
 682
 683         (*dirInfo)->dirpath = talloc_strdup(*dirInfo, fname);
 684         if ((*dirInfo)->dirpath == NULL)
 685         {
 686                 goto err;
 687         }
 688
 689         if (!is_in_media_files(fname))
 690         {
 691                 (*dirInfo)->clientPath = NULL;
 692                 (*dirInfo)->clientMDBFilename = NULL;
 693                 (*dirInfo)->clientPMRFilename = NULL;
 694                 (*dirInfo)->clientCreatingDirname = NULL;
 695                 (*dirInfo)->isInMediaFiles = False;
 696                 goto out;
 697         }
 698
 699         (*dirInfo)->isInMediaFiles = True;
 700
 701         if (alloc_set_client_dirinfo_path(handle,
 702                                 *dirInfo,
 703                                 &((*dirInfo)->clientMDBFilename),
 704                                 MDB_FILENAME))
 705         {
 706                 goto err;
 707         }
 708
 709         if (alloc_set_client_dirinfo_path(handle,
 710                                 *dirInfo,
 711                                 &((*dirInfo)->clientPMRFilename),
 712                                 PMR_FILENAME))
 713         {
 714                 goto err;
 715         }
 716
 717         if (alloc_set_client_dirinfo_path(handle,
 718                                 *dirInfo,
 719                                 &((*dirInfo)->clientCreatingDirname),
 720                                 CREATING_DIRNAME))
 721         {
 722                 goto err;
 723         }
 724
 725         clientPath = NULL;
 726         ctx = talloc_tos();
 727
 728         if (alloc_get_client_path(handle, ctx,
 729                                 fname,
 730                                 &clientPath))
 731         {
 732                 goto err;
 733         }
 734
 735         (*dirInfo)->clientPath = talloc_strdup(*dirInfo, clientPath);
 736         if ((*dirInfo)->clientPath == NULL)
 737         {
 738                 goto err;
 739         }
 740
 741         TALLOC_FREE(clientPath);
 742
 743 out:
 744         DEBUG(MH_INFO_DEBUG, ("Leaving with (*dirInfo)->dirpath '%s', "
 745                                 "(*dirInfo)->clientPath '%s'\n",
 746                                 (*dirInfo)->dirpath,
 747                                 (*dirInfo)->clientPath));
 748         return status;
 749
 750 err:
 751         DEBUG(MH_ERR_DEBUG, ("Failing with fname '%s'\n", fname));
 752         TALLOC_FREE(*dirInfo);
 753         status = -1;
 754         errno = ENOMEM;
 755         return status;
 756 }
 757
 758 static DIR *mh_fdopendir(vfs_handle_struct *handle,
 759                 files_struct *fsp,
 760                 const char *mask,
 761                 uint32_t attr)
 762 {
 763         struct mh_dirinfo_struct *dirInfo = NULL;
 764         DIR *dirstream;
 765
 766         DEBUG(MH_INFO_DEBUG, ("Entering with fsp->fsp_name->base_name '%s'\n",
 767                               fsp->fsp_name->base_name));
 768
 769         dirstream = SMB_VFS_NEXT_FDOPENDIR(handle, fsp, mask, attr);
 770         if (!dirstream)
 771         {
 772                 goto err;
 773         }
 774
 775         if (alloc_set_client_dirinfo(handle, fsp->fsp_name->base_name,
 776                                         &dirInfo))
 777         {
 778                 goto err;
 779         }
 780
 781         dirInfo->dirstream = dirstream;
 782
 783         if (! dirInfo->isInMediaFiles) {
 784                 goto out;
 785         }
 786
 787         if (set_fake_mtime(handle, fsp, &(fsp->fsp_name), sys_stat))
 788         {
 789                 goto err;
 790         }
 791
 792 out:
 793         DEBUG(MH_INFO_DEBUG, ("Leaving with dirInfo->dirpath '%s', "
 794                         "dirInfo->clientPath '%s', "
 795                         "fsp->fsp_name->st.st_ex_mtime %s",
 796                         dirInfo->dirpath,
 797                         dirInfo->clientPath,
 798                         ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec))));
 799         /* Success is freed in closedir. */
 800         return (DIR *) dirInfo;
 801 err:
 802         /* Failure is freed here. */
 803         DEBUG(MH_ERR_DEBUG, ("Failing with fsp->fsp_name->base_name '%s'\n",
 804                         fsp->fsp_name->base_name));
 805         TALLOC_FREE(dirInfo);
 806         return NULL;
 807 }
 808
 809 /*
 810  * skip MDB_FILENAME and PMR_FILENAME filenames and CREATING_DIRNAME
 811  * directory, skip other client's suffixed MDB_FILENAME and PMR_FILENAME
 812  * filenames and CREATING_DIRNAME directory, replace this client's
 813  * suffixed MDB_FILENAME and PMR_FILENAME filenames and CREATING_DIRNAME
 814  * directory with non suffixed.
 815  *
 816  * Success: return dirent
 817  * End of data: return NULL
 818  * Failure: set errno, return NULL
 819  */
 820 static struct dirent *
 821 mh_readdir(vfs_handle_struct *handle, struct files_struct *dirfsp, DIR *dirp)
 822 {
 823         mh_dirinfo_struct* dirInfo = (mh_dirinfo_struct*)dirp;
 824         struct dirent *d = NULL;
 825         int skip;
 826
 827         DEBUG(MH_INFO_DEBUG, ("Entering mh_readdir\n"));
 828
 829         DEBUG(MH_INFO_DEBUG, ("dirInfo->dirpath '%s', "
 830                               "dirInfo->clientPath '%s', "
 831                               "dirInfo->isInMediaFiles '%s', "
 832                               "dirInfo->clientMDBFilename '%s', "
 833                               "dirInfo->clientPMRFilename '%s', "
 834                               "dirInfo->clientCreatingDirname '%s'\n",
 835                               dirInfo->dirpath,
 836                               dirInfo->clientPath,
 837                               dirInfo->isInMediaFiles ? "True" : "False",
 838                               dirInfo->clientMDBFilename,
 839                               dirInfo->clientPMRFilename,
 840                               dirInfo->clientCreatingDirname));
 841
 842         if (! dirInfo->isInMediaFiles)
 843         {
 844                 d = SMB_VFS_NEXT_READDIR(handle, dirfsp, dirInfo->dirstream);
 845                 goto out;
 846         }
 847
 848         do
 849         {
 850                 const char* dname;
 851                 bool isAppleDouble;
 852
 853                 skip = False;
 854                 d = SMB_VFS_NEXT_READDIR(handle, dirfsp, dirInfo->dirstream);
 855
 856                 if (d == NULL)
 857                 {
 858                         break;
 859                 }
 860
 861                 /* ignore apple double prefix for logic below */
 862                 if (is_apple_double(d->d_name))
 863                 {
 864                         dname = &d->d_name[APPLE_DOUBLE_PREFIX_LEN];
 865                         isAppleDouble = True;
 866                 }
 867                 else
 868                 {
 869                         dname = d->d_name;
 870                         isAppleDouble = False;
 871                 }
 872
 873                 /* skip Avid-special files with no client suffix */
 874                 if (
 875                         strcmp(dname, MDB_FILENAME) == 0
 876                         ||
 877                         strcmp(dname, PMR_FILENAME) == 0
 878                         ||
 879                         strcmp(dname, CREATING_DIRNAME) == 0
 880                 )
 881                 {
 882                         skip = True;
 883                 }
 884                 /* chop client suffix off this client's suffixed files */
 885                 else if (strcmp(dname, dirInfo->clientMDBFilename) == 0)
 886                 {
 887                         if (isAppleDouble)
 888                         {
 889                                 d->d_name[MDB_FILENAME_LEN
 890                                         + APPLE_DOUBLE_PREFIX_LEN] = '\0';
 891                         }
 892                         else
 893                         {
 894                                 d->d_name[MDB_FILENAME_LEN] = '\0';
 895                         }
 896                 }
 897                 else if (strcmp(dname, dirInfo->clientPMRFilename) == 0)
 898                 {
 899                         if (isAppleDouble)
 900                         {
 901                                 d->d_name[PMR_FILENAME_LEN
 902                                         + APPLE_DOUBLE_PREFIX_LEN] = '\0';
 903                         }
 904                         else
 905                         {
 906                                 d->d_name[PMR_FILENAME_LEN] = '\0';
 907                         }
 908                 }
 909                 else if (strcmp(dname, dirInfo->clientCreatingDirname)
 910                                 == 0)
 911                 {
 912                         if (isAppleDouble)
 913                         {
 914                                 d->d_name[CREATING_DIRNAME_LEN
 915                                         + APPLE_DOUBLE_PREFIX_LEN] = '\0';
 916                         }
 917                         else
 918                         {
 919                                 d->d_name[CREATING_DIRNAME_LEN] = '\0';
 920                         }
 921                 }
 922                 /*
 923                  * Anything that starts as an Avid-special file
 924                  * that's made it this far should be skipped.  This
 925                  * is different from the original behaviour, which
 926                  * only skipped other client's suffixed files.
 927                  */
 928                 else if (
 929                         strncmp(MDB_FILENAME, dname,
 930                                 MDB_FILENAME_LEN) == 0
 931                         ||
 932                         strncmp(PMR_FILENAME, dname,
 933                                 PMR_FILENAME_LEN) == 0
 934                         ||
 935                         strncmp(CREATING_DIRNAME, dname,
 936                                 CREATING_DIRNAME_LEN) == 0
 937                 )
 938                 {
 939                         skip = True;
 940                 }
 941         }
 942         while (skip);
 943
 944 out:
 945         DEBUG(MH_INFO_DEBUG, ("Leaving mh_readdir\n"));
 946         return d;
 947 }
 948
 949 /*
 950  * Success: no success result defined.
 951  * Failure: no failure result defined.
 952  */
 953 static void mh_rewinddir(vfs_handle_struct *handle,
 954                 DIR *dirp)
 955 {
 956         DEBUG(MH_INFO_DEBUG, ("Entering and leaving mh_rewinddir\n"));
 957         SMB_VFS_NEXT_REWINDDIR(handle,
 958                         ((mh_dirinfo_struct*)dirp)->dirstream);
 959 }
 960
 961 /*
 962  * Success: return 0
 963  * Failure: set errno, return -1
 964  */
 965 static int mh_mkdirat(vfs_handle_struct *handle,
 966                 struct files_struct *dirfsp,
 967                 const struct smb_filename *smb_fname,
 968                 mode_t mode)
 969 {
 970         int status;
 971         struct smb_filename *clientFname = NULL;
 972         const char *path = smb_fname->base_name;
 973         struct smb_filename *full_fname = NULL;
 974
 975         DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n", path));
 976
 977         if (!is_in_media_files(path)) {
 978                 status = SMB_VFS_NEXT_MKDIRAT(handle,
 979                                 dirfsp,
 980                                 smb_fname,
 981                                 mode);
 982                 goto out;
 983         }
 984
 985         full_fname = full_path_from_dirfsp_atname(talloc_tos(),
 986                                                   dirfsp,
 987                                                   smb_fname);
 988         if (full_fname == NULL) {
 989                 return -1;
 990         }
 991
 992         status = alloc_get_client_smb_fname(handle,
 993                                 talloc_tos(),
 994                                 full_fname,
 995                                 &clientFname);
 996         if (status != 0) {
 997                 goto err;
 998         }
 999
1000         status = SMB_VFS_NEXT_MKDIRAT(handle,
1001                         handle->conn->cwd_fsp,
1002                         clientFname,
1003                         mode);
1004 err:
1005         TALLOC_FREE(full_fname);
1006         TALLOC_FREE(clientFname);
1007 out:
1008         DEBUG(MH_INFO_DEBUG, ("Leaving with path '%s'\n", path));
1009         return status;
1010 }
1011
1012 /*
1013  * Success: return 0
1014  * Failure: set errno, return -1
1015  */
1016 static int mh_closedir(vfs_handle_struct *handle,
1017                 DIR *dirp)
1018 {
1019         DIR *realdirp = ((mh_dirinfo_struct*)dirp)->dirstream;
1020
1021         DEBUG(MH_INFO_DEBUG, ("Entering mh_closedir\n"));
1022         // Will this talloc_free destroy realdirp?
1023         TALLOC_FREE(dirp);
1024
1025         DEBUG(MH_INFO_DEBUG, ("Leaving mh_closedir\n"));
1026         return SMB_VFS_NEXT_CLOSEDIR(handle, realdirp);
1027 }
1028
1029 /*
1030  * Success: return non-negative file descriptor
1031  * Failure: set errno, return -1
1032  */
1033 static int mh_openat(struct vfs_handle_struct *handle,
1034                      const struct files_struct *dirfsp,
1035                      const struct smb_filename *smb_fname,
1036                      files_struct *fsp,
1037                      const struct vfs_open_how *how)
1038 {
1039         int ret;
1040         struct smb_filename *clientFname;
1041         TALLOC_CTX *ctx;
1042
1043         DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n",
1044                               smb_fname->base_name));
1045
1046         if (!is_in_media_files(smb_fname->base_name)) {
1047                 ret = SMB_VFS_NEXT_OPENAT(handle,
1048                                           dirfsp,
1049                                           smb_fname,
1050                                           fsp,
1051                                           how);
1052                 goto out;
1053         }
1054
1055         clientFname = NULL;
1056         ctx = talloc_tos();
1057
1058         if (alloc_get_client_smb_fname(handle, ctx, smb_fname, &clientFname)) {
1059                 ret = -1;
1060                 goto err;
1061         }
1062
1063         /*
1064          * What about fsp->fsp_name? We also have to get correct stat info into
1065          * fsp and smb_fname for DB files, don't we?
1066          */
1067
1068         DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->base_name '%s' "
1069                               "smb_fname->st.st_ex_mtime %s"
1070                               " fsp->fsp_name->st.st_ex_mtime %s",
1071                               smb_fname->base_name,
1072                               ctime(&(smb_fname->st.st_ex_mtime.tv_sec)),
1073                               ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec))));
1074
1075         ret = SMB_VFS_NEXT_OPENAT(handle, dirfsp, clientFname, fsp, how);
1076 err:
1077         TALLOC_FREE(clientFname);
1078 out:
1079         DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->base_name '%s'\n",
1080                                 smb_fname->base_name));
1081         return ret;
1082 }
1083
1084 /*
1085  * Success: return non-negative file descriptor
1086  * Failure: set errno, return -1
1087  */
1088 static NTSTATUS mh_create_file(vfs_handle_struct *handle,
1089                 struct smb_request *req,
1090                 struct files_struct *dirfsp,
1091                 struct smb_filename *smb_fname,
1092                 uint32_t access_mask,
1093                 uint32_t share_access,
1094                 uint32_t create_disposition,
1095                 uint32_t create_options,
1096                 uint32_t file_attributes,
1097                 uint32_t oplock_request,
1098                 const struct smb2_lease *lease,
1099                 uint64_t allocation_size,
1100                 uint32_t private_flags,
1101                 struct security_descriptor *sd,
1102                 struct ea_list *ea_list,
1103                 files_struct **result_fsp,
1104                 int *pinfo,
1105                 const struct smb2_create_blobs *in_context_blobs,
1106                 struct smb2_create_blobs *out_context_blobs)
1107 {
1108         NTSTATUS status;
1109         struct smb_filename *clientFname;
1110         TALLOC_CTX *ctx;
1111
1112
1113         DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n",
1114                                 smb_fname->base_name));
1115         if (!is_in_media_files(smb_fname->base_name))
1116         {
1117                 status = SMB_VFS_NEXT_CREATE_FILE(
1118                         handle,
1119                         req,
1120                         dirfsp,
1121                         smb_fname,
1122                         access_mask,
1123                         share_access,
1124                         create_disposition,
1125                         create_options,
1126                         file_attributes,
1127                         oplock_request,
1128                         lease,
1129                         allocation_size,
1130                         private_flags,
1131                         sd,
1132                         ea_list,
1133                         result_fsp,
1134                         pinfo,
1135                         in_context_blobs,
1136                         out_context_blobs);
1137                 goto out;
1138         }
1139
1140         clientFname = NULL;
1141         ctx = talloc_tos();
1142
1143         if (alloc_get_client_smb_fname(handle, ctx,
1144                                 smb_fname,
1145                                 &clientFname))
1146         {
1147                 status = map_nt_error_from_unix(errno);
1148                 goto err;
1149         }
1150
1151         /* This only creates files, so we don't have to worry about
1152          * our fake directory stat'ing here.
1153          */
1154         // But we still need to route stat calls for DB files
1155         // properly, right?
1156         status = SMB_VFS_NEXT_CREATE_FILE(
1157                 handle,
1158                 req,
1159                 dirfsp,
1160                 clientFname,
1161                 access_mask,
1162                 share_access,
1163                 create_disposition,
1164                 create_options,
1165                 file_attributes,
1166                 oplock_request,
1167                 lease,
1168                 allocation_size,
1169                 private_flags,
1170                 sd,
1171                 ea_list,
1172                 result_fsp,
1173                 pinfo,
1174                 in_context_blobs,
1175                 out_context_blobs);
1176 err:
1177         TALLOC_FREE(clientFname);
1178 out:
1179         DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->base_name '%s'"
1180                 "smb_fname->st.st_ex_mtime %s"
1181                 "               fsp->fsp_name->st.st_ex_mtime %s",
1182                 smb_fname->base_name,
1183                 ctime(&(smb_fname->st.st_ex_mtime.tv_sec)),
1184                 (*result_fsp) && VALID_STAT((*result_fsp)->fsp_name->st) ?
1185                 ctime(&((*result_fsp)->fsp_name->st.st_ex_mtime.tv_sec)) :
1186                 "No fsp time\n"));
1187         return status;
1188 }
1189
1190 /*
1191  * Success: return 0
1192  * Failure: set errno, return -1
1193  */
1194 static int mh_renameat(vfs_handle_struct *handle,
1195                 files_struct *srcfsp,
1196                 const struct smb_filename *smb_fname_src,
1197                 files_struct *dstfsp,
1198                 const struct smb_filename *smb_fname_dst)
1199 {
1200         int status = -1;
1201         struct smb_filename *full_fname_src = NULL;
1202         struct smb_filename *full_fname_dst = NULL;
1203         struct smb_filename *srcClientFname = NULL;
1204         struct smb_filename *dstClientFname = NULL;
1205
1206         DEBUG(MH_INFO_DEBUG, ("Entering with "
1207                               "smb_fname_src->base_name '%s', "
1208                               "smb_fname_dst->base_name '%s'\n",
1209                               smb_fname_src->base_name,
1210                               smb_fname_dst->base_name));
1211
1212         if (!is_in_media_files(smb_fname_src->base_name)
1213                                 &&
1214                         !is_in_media_files(smb_fname_dst->base_name))
1215         {
1216                 status = SMB_VFS_NEXT_RENAMEAT(handle,
1217                                 srcfsp,
1218                                 smb_fname_src,
1219                                 dstfsp,
1220                                 smb_fname_dst);
1221                 goto out;
1222         }
1223
1224         full_fname_src = full_path_from_dirfsp_atname(talloc_tos(),
1225                                                       srcfsp,
1226                                                       smb_fname_src);
1227         if (full_fname_src == NULL) {
1228                 errno = ENOMEM;
1229                 goto out;
1230         }
1231         full_fname_dst = full_path_from_dirfsp_atname(talloc_tos(),
1232                                                       dstfsp,
1233                                                       smb_fname_dst);
1234         if (full_fname_dst == NULL) {
1235                 errno = ENOMEM;
1236                 goto out;
1237         }
1238
1239         if ((status = alloc_get_client_smb_fname(handle,
1240                                 talloc_tos(),
1241                                 full_fname_src,
1242                                 &srcClientFname)))
1243         {
1244                 goto err;
1245         }
1246
1247         if ((status = alloc_get_client_smb_fname(handle,
1248                                 talloc_tos(),
1249                                 full_fname_dst,
1250                                 &dstClientFname)))
1251         {
1252                 goto err;
1253         }
1254
1255         status = SMB_VFS_NEXT_RENAMEAT(handle,
1256                                 srcfsp->conn->cwd_fsp,
1257                                 srcClientFname,
1258                                 dstfsp->conn->cwd_fsp,
1259                                 dstClientFname);
1260 err:
1261         TALLOC_FREE(full_fname_src);
1262         TALLOC_FREE(full_fname_dst);
1263         TALLOC_FREE(dstClientFname);
1264         TALLOC_FREE(srcClientFname);
1265 out:
1266         DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname_src->base_name '%s',"
1267                                 " smb_fname_dst->base_name '%s'\n",
1268                                 smb_fname_src->base_name,
1269                                 smb_fname_dst->base_name));
1270         return status;
1271 }
1272
1273 /*
1274  * Success: return 0
1275  * Failure: set errno, return -1
1276  */
1277 static int mh_stat(vfs_handle_struct *handle,
1278                 struct smb_filename *smb_fname)
1279 {
1280         int status = 0;
1281         struct smb_filename *clientFname;
1282         TALLOC_CTX *ctx;
1283
1284
1285         DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n",
1286                               smb_fname->base_name));
1287
1288         if (!is_in_media_files(smb_fname->base_name))
1289         {
1290                 status = SMB_VFS_NEXT_STAT(handle, smb_fname);
1291                 goto out;
1292         }
1293
1294         clientFname = NULL;
1295         ctx = talloc_tos();
1296
1297         if ((status = alloc_get_client_smb_fname(handle, ctx,
1298                                 smb_fname,
1299                                 &clientFname)))
1300         {
1301                 goto err;
1302         }
1303         DEBUG(MH_INFO_DEBUG, ("Stat'ing clientFname->base_name '%s'\n",
1304                                 clientFname->base_name));
1305         if ((status = SMB_VFS_NEXT_STAT(handle, clientFname)))
1306         {
1307                 goto err;
1308         }
1309         if ((status = set_fake_mtime(handle, ctx, &clientFname, sys_stat)))
1310         {
1311                 goto err;
1312         }
1313
1314         /* Unlike functions with const smb_filename, we have to
1315          * modify smb_fname itself to pass our info back up.
1316          */
1317         DEBUG(MH_INFO_DEBUG, ("Setting smb_fname '%s' stat "
1318                                 "from clientFname '%s'\n",
1319                                 smb_fname->base_name,
1320                                 clientFname->base_name));
1321         smb_fname->st = clientFname->st;
1322 err:
1323         TALLOC_FREE(clientFname);
1324 out:
1325         DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->st.st_ex_mtime %s",
1326                         ctime(&(smb_fname->st.st_ex_mtime.tv_sec))));
1327         return status;
1328 }
1329
1330 /*
1331  * Success: return 0
1332  * Failure: set errno, return -1
1333  */
1334 static int mh_lstat(vfs_handle_struct *handle,
1335                 struct smb_filename *smb_fname)
1336 {
1337         int status = 0;
1338         struct smb_filename *clientFname;
1339         TALLOC_CTX *ctx;
1340
1341         DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n",
1342                               smb_fname->base_name));
1343
1344         if (!is_in_media_files(smb_fname->base_name))
1345         {
1346                 status = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
1347                 goto out;
1348         }
1349
1350         clientFname = NULL;
1351         ctx = talloc_tos();
1352
1353         if ((status = alloc_get_client_smb_fname(handle, ctx,
1354                                 smb_fname,
1355                                 &clientFname)))
1356         {
1357                 goto err;
1358         }
1359         if ((status = SMB_VFS_NEXT_LSTAT(handle, clientFname)))
1360         {
1361                 goto err;
1362         }
1363
1364         if ((status = set_fake_mtime(handle, ctx, &clientFname, sys_lstat)))
1365         {
1366                 goto err;
1367         }
1368         /* Unlike functions with const smb_filename, we have to
1369          * modify smb_fname itself to pass our info back up.
1370          */
1371         smb_fname->st = clientFname->st;
1372 err:
1373         TALLOC_FREE(clientFname);
1374 out:
1375         DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->st.st_ex_mtime %s",
1376                         ctime(&(smb_fname->st.st_ex_mtime.tv_sec))));
1377         return status;
1378 }
1379
1380 /*
1381  * Success: return 0
1382  * Failure: set errno, return -1
1383  */
1384 static int mh_fstat(vfs_handle_struct *handle,
1385                 files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1386 {
1387         int status = 0;
1388
1389         DEBUG(MH_INFO_DEBUG, ("Entering with fsp->fsp_name->base_name "
1390                                 "'%s'\n", fsp_str_dbg(fsp)));
1391
1392         if ((status = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf)))
1393         {
1394                 goto out;
1395         }
1396
1397         if (fsp->fsp_name == NULL
1398                         || !is_in_media_files(fsp->fsp_name->base_name))
1399         {
1400                 goto out;
1401         }
1402
1403         if ((status = mh_stat(handle, fsp->fsp_name)))
1404         {
1405                 goto out;
1406         }
1407
1408         *sbuf = fsp->fsp_name->st;
1409 out:
1410         DEBUG(MH_INFO_DEBUG, ("Leaving with fsp->fsp_name->st.st_ex_mtime "
1411                         "%s",
1412                         fsp->fsp_name != NULL ?
1413                                 ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec)) :
1414                                 "0"));
1415         return status;
1416 }
1417
1418 /*
1419  * Success: return 0
1420  * Failure: set errno, return -1
1421  */
1422 static int mh_unlinkat(vfs_handle_struct *handle,
1423                 struct files_struct *dirfsp,
1424                 const struct smb_filename *smb_fname,
1425                 int flags)
1426 {
1427         int status;
1428         struct smb_filename *full_fname = NULL;
1429         struct smb_filename *clientFname;
1430         TALLOC_CTX *ctx;
1431
1432         DEBUG(MH_INFO_DEBUG, ("Entering mh_unlinkat\n"));
1433         if (!is_in_media_files(smb_fname->base_name)) {
1434                 status = SMB_VFS_NEXT_UNLINKAT(handle,
1435                                 dirfsp,
1436                                 smb_fname,
1437                                 flags);
1438                 goto out;
1439         }
1440
1441         clientFname = NULL;
1442         ctx = talloc_tos();
1443
1444         full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1445                                                   dirfsp,
1446                                                   smb_fname);
1447         if (full_fname == NULL) {
1448                 return -1;
1449         }
1450
1451         if ((status = alloc_get_client_smb_fname(handle, ctx,
1452                                 full_fname,
1453                                 &clientFname))) {
1454                 goto err;
1455         }
1456
1457         status = SMB_VFS_NEXT_UNLINKAT(handle,
1458                                 dirfsp->conn->cwd_fsp,
1459                                 clientFname,
1460                                 flags);
1461 err:
1462         TALLOC_FREE(full_fname);
1463         TALLOC_FREE(clientFname);
1464 out:
1465         return status;
1466 }
1467
1468 /*
1469  * Success: return 0
1470  * Failure: set errno, return -1
1471  */
1472 static int mh_lchown(vfs_handle_struct *handle,
1473                 const struct smb_filename *smb_fname,
1474                 uid_t uid,
1475                 gid_t gid)
1476 {
1477         int status;
1478         struct smb_filename *clientFname = NULL;
1479
1480         DEBUG(MH_INFO_DEBUG, ("Entering mh_lchown\n"));
1481         if (!is_in_media_files(smb_fname->base_name))
1482         {
1483                 status = SMB_VFS_NEXT_LCHOWN(handle, smb_fname, uid, gid);
1484                 goto out;
1485         }
1486
1487         status = alloc_get_client_smb_fname(handle,
1488                                 talloc_tos(),
1489                                 smb_fname,
1490                                 &clientFname);
1491         if (status != 0) {
1492                 goto err;
1493         }
1494
1495         status = SMB_VFS_NEXT_LCHOWN(handle, clientFname, uid, gid);
1496 err:
1497         TALLOC_FREE(clientFname);
1498 out:
1499         return status;
1500 }
1501
1502 /*
1503  * Success: return 0
1504  * Failure: set errno, return -1
1505  */
1506 static int mh_chdir(vfs_handle_struct *handle,
1507                 const struct smb_filename *smb_fname)
1508 {
1509         int status;
1510         struct smb_filename *clientFname = NULL;
1511
1512         DEBUG(MH_INFO_DEBUG, ("Entering mh_chdir\n"));
1513         if (!is_in_media_files(smb_fname->base_name)) {
1514                 status = SMB_VFS_NEXT_CHDIR(handle, smb_fname);
1515                 goto out;
1516         }
1517
1518         status = alloc_get_client_smb_fname(handle,
1519                                 talloc_tos(),
1520                                 smb_fname,
1521                                 &clientFname);
1522         if (status != 0) {
1523                 goto err;
1524         }
1525
1526         status = SMB_VFS_NEXT_CHDIR(handle, clientFname);
1527 err:
1528         TALLOC_FREE(clientFname);
1529 out:
1530         return status;
1531 }
1532
1533 /*
1534  * Success: return 0
1535  * Failure: set errno, return -1
1536  */
1537
1538 static int mh_symlinkat(vfs_handle_struct *handle,
1539                 const struct smb_filename *link_contents,
1540                 struct files_struct *dirfsp,
1541                 const struct smb_filename *new_smb_fname)
1542 {
1543         int status = -1;
1544         struct smb_filename *full_fname = NULL;
1545         struct smb_filename *new_link_target = NULL;
1546         struct smb_filename *newclientFname = NULL;
1547
1548         DEBUG(MH_INFO_DEBUG, ("Entering mh_symlinkat\n"));
1549
1550         full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1551                                                 dirfsp,
1552                                                 new_smb_fname);
1553         if (full_fname == NULL) {
1554                 status = -1;
1555                 goto err;
1556         }
1557
1558         if (!is_in_media_files(link_contents->base_name) &&
1559                         !is_in_media_files(full_fname->base_name)) {
1560                 status = SMB_VFS_NEXT_SYMLINKAT(handle,
1561                                 link_contents,
1562                                 dirfsp,
1563                                 new_smb_fname);
1564                 goto out;
1565         }
1566
1567         if ((status = alloc_get_client_smb_fname(handle, talloc_tos(),
1568                                 link_contents,
1569                                 &new_link_target))) {
1570                 goto err;
1571         }
1572         if ((status = alloc_get_client_smb_fname(handle, talloc_tos(),
1573                                 full_fname,
1574                                 &newclientFname))) {
1575                 goto err;
1576         }
1577
1578         status = SMB_VFS_NEXT_SYMLINKAT(handle,
1579                                 new_link_target,
1580                                 handle->conn->cwd_fsp,
1581                                 newclientFname);
1582 err:
1583         TALLOC_FREE(new_link_target);
1584         TALLOC_FREE(newclientFname);
1585 out:
1586         TALLOC_FREE(full_fname);
1587         return status;
1588 }
1589
1590 /*
1591  * Success: return byte count
1592  * Failure: set errno, return -1
1593  */
1594 static int mh_readlinkat(vfs_handle_struct *handle,
1595                 const struct files_struct *dirfsp,
1596                 const struct smb_filename *smb_fname,
1597                 char *buf,
1598                 size_t bufsiz)
1599 {
1600         int status;
1601         struct smb_filename *full_fname = NULL;
1602         struct smb_filename *clientFname = NULL;
1603
1604         DEBUG(MH_INFO_DEBUG, ("Entering mh_readlinkat\n"));
1605         full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1606                                                 dirfsp,
1607                                                 smb_fname);
1608         if (full_fname == NULL) {
1609                 status = -1;
1610                 goto err;
1611         }
1612
1613         if (!is_in_media_files(full_fname->base_name)) {
1614                 status = SMB_VFS_NEXT_READLINKAT(handle,
1615                                 dirfsp,
1616                                 smb_fname,
1617                                 buf,
1618                                 bufsiz);
1619                 goto out;
1620         }
1621
1622         if ((status = alloc_get_client_smb_fname(handle, talloc_tos(),
1623                                 full_fname,
1624                                 &clientFname))) {
1625                 goto err;
1626         }
1627
1628         status = SMB_VFS_NEXT_READLINKAT(handle,
1629                                 handle->conn->cwd_fsp,
1630                                 clientFname,
1631                                 buf,
1632                                 bufsiz);
1633
1634 err:
1635         TALLOC_FREE(clientFname);
1636 out:
1637         TALLOC_FREE(full_fname);
1638         return status;
1639 }
1640
1641 /*
1642  * Success: return 0
1643  * Failure: set errno, return -1
1644  */
1645 static int mh_linkat(vfs_handle_struct *handle,
1646                 files_struct *srcfsp,
1647                 const struct smb_filename *old_smb_fname,
1648                 files_struct *dstfsp,
1649                 const struct smb_filename *new_smb_fname,
1650                 int flags)
1651 {
1652         int status;
1653         struct smb_filename *old_full_fname = NULL;
1654         struct smb_filename *oldclientFname = NULL;
1655         struct smb_filename *new_full_fname = NULL;
1656         struct smb_filename *newclientFname = NULL;
1657
1658         DEBUG(MH_INFO_DEBUG, ("Entering mh_linkat\n"));
1659
1660         old_full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1661                                                 srcfsp,
1662                                                 old_smb_fname);
1663         if (old_full_fname == NULL) {
1664                 status = -1;
1665                 goto err;
1666         }
1667
1668         new_full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1669                                                 dstfsp,
1670                                                 new_smb_fname);
1671         if (new_full_fname == NULL) {
1672                 status = -1;
1673                 goto err;
1674         }
1675
1676         if (!is_in_media_files(old_full_fname->base_name) &&
1677                         !is_in_media_files(new_full_fname->base_name)) {
1678                 TALLOC_FREE(old_full_fname);
1679                 TALLOC_FREE(new_full_fname);
1680
1681                 status = SMB_VFS_NEXT_LINKAT(handle,
1682                                 srcfsp,
1683                                 old_smb_fname,
1684                                 dstfsp,
1685                                 new_smb_fname,
1686                                 flags);
1687                 goto out;
1688         }
1689
1690         if ((status = alloc_get_client_smb_fname(handle, talloc_tos(),
1691                                 old_full_fname,
1692                                 &oldclientFname))) {
1693                 goto err;
1694         }
1695         if ((status = alloc_get_client_smb_fname(handle, talloc_tos(),
1696                                 new_full_fname,
1697                                 &newclientFname))) {
1698                 goto err;
1699         }
1700
1701         status = SMB_VFS_NEXT_LINKAT(handle,
1702                                 handle->conn->cwd_fsp,
1703                                 oldclientFname,
1704                                 handle->conn->cwd_fsp,
1705                                 newclientFname,
1706                                 flags);
1707
1708 err:
1709         TALLOC_FREE(old_full_fname);
1710         TALLOC_FREE(new_full_fname);
1711         TALLOC_FREE(newclientFname);
1712         TALLOC_FREE(oldclientFname);
1713 out:
1714         return status;
1715 }
1716
1717 /*
1718  * Success: return 0
1719  * Failure: set errno, return -1
1720  */
1721 static int mh_mknodat(vfs_handle_struct *handle,
1722                 files_struct *dirfsp,
1723                 const struct smb_filename *smb_fname,
1724                 mode_t mode,
1725                 SMB_DEV_T dev)
1726 {
1727         int status;
1728         struct smb_filename *full_fname = NULL;
1729         struct smb_filename *clientFname = NULL;
1730         TALLOC_CTX *ctx;
1731
1732         DEBUG(MH_INFO_DEBUG, ("Entering mh_mknodat\n"));
1733
1734         full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1735                                                 dirfsp,
1736                                                 smb_fname);
1737         if (full_fname == NULL) {
1738                 status = -1;
1739                 goto err;
1740         }
1741
1742         if (!is_in_media_files(full_fname->base_name)) {
1743                 status = SMB_VFS_NEXT_MKNODAT(handle,
1744                                 dirfsp,
1745                                 smb_fname,
1746                                 mode,
1747                                 dev);
1748                 goto out;
1749         }
1750
1751         ctx = talloc_tos();
1752
1753         if ((status = alloc_get_client_smb_fname(handle, ctx,
1754                                 full_fname,
1755                                 &clientFname))) {
1756                 goto err;
1757         }
1758
1759         status = SMB_VFS_NEXT_MKNODAT(handle,
1760                         handle->conn->cwd_fsp,
1761                         clientFname,
1762                         mode,
1763                         dev);
1764
1765 err:
1766         TALLOC_FREE(clientFname);
1767 out:
1768         TALLOC_FREE(full_fname);
1769         return status;
1770 }
1771
1772 /*
1773  * Success: return path pointer
1774  * Failure: set errno, return NULL pointer
1775  */
1776 static struct smb_filename *mh_realpath(vfs_handle_struct *handle,
1777                                 TALLOC_CTX *ctx,
1778                                 const struct smb_filename *smb_fname)
1779 {
1780         struct smb_filename *result_fname = NULL;
1781         struct smb_filename *clientFname = NULL;
1782
1783         DEBUG(MH_INFO_DEBUG, ("Entering mh_realpath\n"));
1784         if (!is_in_media_files(smb_fname->base_name)) {
1785                 return SMB_VFS_NEXT_REALPATH(handle, ctx, smb_fname);
1786         }
1787
1788         if (alloc_get_client_smb_fname(handle, ctx,
1789                                 smb_fname,
1790                                 &clientFname) != 0) {
1791                 goto err;
1792         }
1793
1794         result_fname = SMB_VFS_NEXT_REALPATH(handle, ctx, clientFname);
1795 err:
1796         TALLOC_FREE(clientFname);
1797         return result_fname;
1798 }
1799
1800 /* Ignoring get_real_filename function because the default
1801  * doesn't do anything.
1802  */
1803
1804 /*
1805  * Success: return 0
1806  * Failure: set errno, return -1
1807  * In this case, "name" is an attr name.
1808  */
1809
1810 /* VFS operations structure */
1811
1812 static struct vfs_fn_pointers vfs_mh_fns = {
1813         /* Disk operations */
1814
1815         .statvfs_fn = mh_statvfs,
1816
1817         /* Directory operations */
1818
1819         .fdopendir_fn = mh_fdopendir,
1820         .readdir_fn = mh_readdir,
1821         .rewind_dir_fn = mh_rewinddir,
1822         .mkdirat_fn = mh_mkdirat,
1823         .closedir_fn = mh_closedir,
1824
1825         /* File operations */
1826
1827         .openat_fn = mh_openat,
1828         .create_file_fn = mh_create_file,
1829         .renameat_fn = mh_renameat,
1830         .stat_fn = mh_stat,
1831         .lstat_fn = mh_lstat,
1832         .fstat_fn = mh_fstat,
1833         .unlinkat_fn = mh_unlinkat,
1834         .lchown_fn = mh_lchown,
1835         .chdir_fn = mh_chdir,
1836         .symlinkat_fn = mh_symlinkat,
1837         .readlinkat_fn = mh_readlinkat,
1838         .linkat_fn = mh_linkat,
1839         .mknodat_fn = mh_mknodat,
1840         .realpath_fn = mh_realpath,
1841
1842         /* EA operations. */
1843         .getxattrat_send_fn = vfs_not_implemented_getxattrat_send,
1844         .getxattrat_recv_fn = vfs_not_implemented_getxattrat_recv,
1845
1846         /* aio operations */
1847 };
1848
1849 static_decl_vfs;
1850 NTSTATUS vfs_media_harmony_init(TALLOC_CTX *ctx)
1851 {
1852         NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
1853                                 "media_harmony", &vfs_mh_fns);
1854         if (!NT_STATUS_IS_OK(ret))
1855         {
1856                 goto out;
1857         }
1858
1859         vfs_mh_debug_level = debug_add_class("media_harmony");
1860
1861         if (vfs_mh_debug_level == -1) {
1862                 vfs_mh_debug_level = DBGC_VFS;
1863                 DEBUG(1, ("media_harmony_init: Couldn't register custom "
1864                                 "debugging class.\n"));
1865         } else {
1866                 DEBUG(3, ("media_harmony_init: Debug class number of "
1867                                 "'media_harmony': %d\n",
1868                                 vfs_mh_debug_level));
1869         }
1870
1871 out:
1872         return ret;
1873 }