src/WINNT/afsrdr/kernel/lib/AFSCommSupport.cpp

   1 /*
   2  * Copyright (c) 2008, 2009, 2010, 2011 Kernel Drivers, LLC.
   3  * Copyright (c) 2009, 2010, 2011 Your File System, Inc.
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * - Redistributions of source code must retain the above copyright notice,
  11  *   this list of conditions and the following disclaimer.
  12  * - Redistributions in binary form must reproduce the above copyright
  13  *   notice,
  14  *   this list of conditions and the following disclaimer in the
  15  *   documentation
  16  *   and/or other materials provided with the distribution.
  17  * - Neither the names of Kernel Drivers, LLC and Your File System, Inc.
  18  *   nor the names of their contributors may be used to endorse or promote
  19  *   products derived from this software without specific prior written
  20  *   permission from Kernel Drivers, LLC and Your File System, Inc.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  23  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  24  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  25  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  26  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  27  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  28  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  29  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  30  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  31  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  32  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 //
  36 // File: AFSCommSupport.cpp
  37 //
  38
  39 #include "AFSCommon.h"
  40
  41 NTSTATUS
  42 AFSEnumerateDirectory( IN GUID *AuthGroup,
  43                        IN AFSObjectInfoCB *ObjectInfoCB,
  44                        IN BOOLEAN   FastQuery)
  45 {
  46
  47     NTSTATUS ntStatus = STATUS_SUCCESS;
  48     void *pBuffer = NULL;
  49     ULONG ulResultLen = 0;
  50     AFSDirQueryCB *pDirQueryCB;
  51     AFSDirEnumEntry *pCurrentDirEntry = NULL;
  52     AFSDirectoryCB *pDirNode = NULL;
  53     ULONG  ulEntryLength = 0;
  54     AFSDirEnumResp *pDirEnumResponse = NULL;
  55     UNICODE_STRING uniDirName, uniTargetName;
  56     ULONG   ulRequestFlags = AFS_REQUEST_FLAG_SYNCHRONOUS;
  57     ULONG ulCRC = 0;
  58     UNICODE_STRING uniGUID;
  59     AFSDeviceExt *pDevExt = (AFSDeviceExt *) AFSRDRDeviceObject->DeviceExtension;
  60
  61     __Enter
  62     {
  63
  64         ASSERT( ExIsResourceAcquiredExclusiveLite( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.TreeLock));
  65
  66         uniGUID.Length = 0;
  67         uniGUID.MaximumLength = 0;
  68         uniGUID.Buffer = NULL;
  69
  70         if( AuthGroup != NULL)
  71         {
  72             RtlStringFromGUID( *AuthGroup,
  73                                &uniGUID);
  74         }
  75
  76         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
  77                       AFS_TRACE_LEVEL_VERBOSE,
  78                       "AFSEnumerateDirectory Enumerating FID %08lX-%08lX-%08lX-%08lX AuthGroup %wZ\n",
  79                       ObjectInfoCB->FileId.Cell,
  80                       ObjectInfoCB->FileId.Volume,
  81                       ObjectInfoCB->FileId.Vnode,
  82                       ObjectInfoCB->FileId.Unique,
  83                       &uniGUID);
  84
  85         if( AuthGroup != NULL)
  86         {
  87             RtlFreeUnicodeString( &uniGUID);
  88         }
  89
  90         //
  91         // Initialize the directory enumeration buffer for the directory
  92         //
  93
  94         pBuffer = AFSExAllocatePoolWithTag( PagedPool,
  95                                             AFS_DIR_ENUM_BUFFER_LEN,
  96                                             AFS_DIR_BUFFER_TAG);
  97
  98         if( pBuffer == NULL)
  99         {
 100
 101             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
 102         }
 103
 104         RtlZeroMemory( pBuffer,
 105                        AFS_DIR_ENUM_BUFFER_LEN);
 106
 107         ulResultLen = AFS_DIR_ENUM_BUFFER_LEN;
 108
 109         //
 110         // Use the payload buffer for information we will pass to the service
 111         //
 112
 113         pDirQueryCB = (AFSDirQueryCB *)pBuffer;
 114
 115         pDirQueryCB->EnumHandle = 0;
 116
 117         if( FastQuery)
 118         {
 119
 120             ulRequestFlags |= AFS_REQUEST_FLAG_FAST_REQUEST;
 121         }
 122
 123         //
 124         // Loop on the information
 125         //
 126
 127         while( TRUE)
 128         {
 129
 130             //
 131             // If the enumeration handle is -1 then we are done
 132             //
 133
 134             if( ((ULONG)-1) == pDirQueryCB->EnumHandle )
 135             {
 136
 137                 ntStatus = STATUS_NO_MORE_ENTRIES;
 138             }
 139             else
 140             {
 141
 142                 //
 143                 // Go and retrieve the directory contents
 144                 //
 145
 146                 ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_DIR_ENUM,
 147                                               ulRequestFlags,
 148                                               AuthGroup,
 149                                               NULL,
 150                                               &ObjectInfoCB->FileId,
 151                                               ObjectInfoCB->VolumeCB->VolumeInformation.Cell,
 152                                               ObjectInfoCB->VolumeCB->VolumeInformation.CellLength,
 153                                               (void *)pDirQueryCB,
 154                                               sizeof( AFSDirQueryCB),
 155                                               pBuffer,
 156                                               &ulResultLen);
 157             }
 158
 159             if( ntStatus != STATUS_SUCCESS ||
 160                 ulResultLen == 0)
 161             {
 162
 163                 if( ntStatus == STATUS_NO_MORE_FILES ||
 164                     ntStatus == STATUS_NO_MORE_ENTRIES)
 165                 {
 166
 167                     ntStatus = STATUS_SUCCESS;
 168
 169                     pDirEnumResponse = (AFSDirEnumResp *)pBuffer;
 170
 171                     AFSAcquireExcl( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.TreeLock,
 172                                     TRUE);
 173
 174                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 175                                   AFS_TRACE_LEVEL_VERBOSE,
 176                                   "AFSEnumerateDirectory Directory Complete FID %08lX-%08lX-%08lX-%08lX Snapshot-DV %08lX:%08lX Current-DV %08lX:%08lX Status %08lX\n",
 177                                   ObjectInfoCB->FileId.Cell,
 178                                   ObjectInfoCB->FileId.Volume,
 179                                   ObjectInfoCB->FileId.Vnode,
 180                                   ObjectInfoCB->FileId.Unique,
 181                                   pDirEnumResponse->SnapshotDataVersion.HighPart,
 182                                   pDirEnumResponse->SnapshotDataVersion.LowPart,
 183                                   pDirEnumResponse->CurrentDataVersion.HighPart,
 184                                   pDirEnumResponse->CurrentDataVersion.LowPart,
 185                                   ntStatus);
 186
 187                     ObjectInfoCB->DataVersion = pDirEnumResponse->SnapshotDataVersion;
 188
 189                     if ( pDirEnumResponse->SnapshotDataVersion.QuadPart != pDirEnumResponse->CurrentDataVersion.QuadPart )
 190                     {
 191
 192                         SetFlag( ObjectInfoCB->Flags, AFS_OBJECT_FLAGS_VERIFY);
 193
 194                         ObjectInfoCB->DataVersion.QuadPart = (ULONGLONG)-1;
 195
 196                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 197                                       AFS_TRACE_LEVEL_VERBOSE,
 198                                       "AFSEnumerateDirectory Force Verify due to DV change during enumeration FID %08lX-%08lX-%08lX-%08lX\n",
 199                                       ObjectInfoCB->FileId.Cell,
 200                                       ObjectInfoCB->FileId.Volume,
 201                                       ObjectInfoCB->FileId.Vnode,
 202                                       ObjectInfoCB->FileId.Unique);
 203                     }
 204
 205                     AFSReleaseResource( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.TreeLock);
 206                 }
 207                 else
 208                 {
 209
 210                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 211                                   AFS_TRACE_LEVEL_VERBOSE,
 212                                   "AFSEnumerateDirectory Failed to enumerate directory FID %08lX-%08lX-%08lX-%08lX AuthGroup %wZ Status %08lX\n",
 213                                   ObjectInfoCB->FileId.Cell,
 214                                   ObjectInfoCB->FileId.Volume,
 215                                   ObjectInfoCB->FileId.Vnode,
 216                                   ObjectInfoCB->FileId.Unique,
 217                                   &uniGUID,
 218                                   ntStatus);
 219                 }
 220
 221                 break;
 222             }
 223
 224             pDirEnumResponse = (AFSDirEnumResp *)pBuffer;
 225
 226             pCurrentDirEntry = (AFSDirEnumEntry *)pDirEnumResponse->Entry;
 227
 228             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 229                           AFS_TRACE_LEVEL_VERBOSE,
 230                           "AFSEnumerateDirectory Enumerating FID %08lX-%08lX-%08lX-%08lX Snapshot-DV %08lX:%08lX Current-DV %08lX:%08lX\n",
 231                           ObjectInfoCB->FileId.Cell,
 232                           ObjectInfoCB->FileId.Volume,
 233                           ObjectInfoCB->FileId.Vnode,
 234                           ObjectInfoCB->FileId.Unique,
 235                           pDirEnumResponse->SnapshotDataVersion.HighPart,
 236                           pDirEnumResponse->SnapshotDataVersion.LowPart,
 237                           pDirEnumResponse->CurrentDataVersion.HighPart,
 238                           pDirEnumResponse->CurrentDataVersion.LowPart);
 239
 240             //
 241             // Remove the leading header from the processed length
 242             //
 243
 244             ulResultLen -= FIELD_OFFSET( AFSDirEnumResp, Entry);
 245
 246             while( ulResultLen > 0)
 247             {
 248
 249                 uniDirName.Length = (USHORT)pCurrentDirEntry->FileNameLength;
 250
 251                 uniDirName.MaximumLength = uniDirName.Length;
 252
 253                 uniDirName.Buffer = (WCHAR *)((char *)pCurrentDirEntry + pCurrentDirEntry->FileNameOffset);
 254
 255                 uniTargetName.Length = (USHORT)pCurrentDirEntry->TargetNameLength;
 256
 257                 uniTargetName.MaximumLength = uniTargetName.Length;
 258
 259                 uniTargetName.Buffer = (WCHAR *)((char *)pCurrentDirEntry + pCurrentDirEntry->TargetNameOffset);
 260
 261                 //
 262                 // Be sure we don't have this entry in the case sensitive tree
 263                 //
 264
 265                 ulCRC = AFSGenerateCRC( &uniDirName,
 266                                         FALSE);
 267
 268                 AFSLocateCaseSensitiveDirEntry( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
 269                                                 ulCRC,
 270                                                 &pDirNode);
 271
 272                 if( pDirNode != NULL)
 273                 {
 274
 275                     //
 276                     // Check that the FIDs are the same
 277                     //
 278
 279                     if( AFSIsEqualFID( &pCurrentDirEntry->FileId,
 280                                        &pDirNode->ObjectInformation->FileId))
 281                     {
 282
 283                         //
 284                         // Duplicate entry, skip it
 285                         //
 286
 287                         ulEntryLength = QuadAlign( sizeof( AFSDirEnumEntry) +
 288                                                    uniDirName.Length +
 289                                                    uniTargetName.Length);
 290
 291                         pCurrentDirEntry = (AFSDirEnumEntry *)((char *)pCurrentDirEntry + ulEntryLength);
 292
 293                         if( ulResultLen >= ulEntryLength)
 294                         {
 295                             ulResultLen -= ulEntryLength;
 296                         }
 297                         else
 298                         {
 299                             ulResultLen = 0;
 300                         }
 301
 302                         //
 303                         // Update the metadata for the entry
 304                         //
 305
 306                         if( pDirNode->ObjectInformation->DataVersion.QuadPart != pCurrentDirEntry->DataVersion.QuadPart)
 307                         {
 308
 309                             LONG lCount;
 310                             AFSObjectInfoCB *pObjectInfo = pDirNode->ObjectInformation;
 311
 312                             //
 313                             // The ObjectReferenceCount will be freed by AFSPerformObjectInvalidate
 314                             //
 315
 316                             lCount = AFSObjectInfoIncrement( pObjectInfo,
 317                                                              AFS_OBJECT_REFERENCE_INVALIDATION);
 318
 319                             AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
 320                                           AFS_TRACE_LEVEL_VERBOSE,
 321                                           "AFSEnumerateDirectory calling AFSPerformObjectInvalidate Increment count on object %p Cnt %d\n",
 322                                           pObjectInfo,
 323                                           lCount);
 324
 325                             AFSPerformObjectInvalidate( pObjectInfo,
 326                                                         AFS_INVALIDATE_DATA_VERSION);
 327                         }
 328                         else
 329                         {
 330
 331                             AFSUpdateMetaData( pDirNode,
 332                                                pCurrentDirEntry);
 333                         }
 334
 335                         continue;
 336                     }
 337                     else
 338                     {
 339
 340                         //
 341                         // Need to tear down this entry and rebuild it below
 342                         //
 343
 344                         if( pDirNode->DirOpenReferenceCount <= 0)
 345                         {
 346
 347                             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 348                                           AFS_TRACE_LEVEL_VERBOSE,
 349                                           "AFSEnumerateDirectory Different FIDs - Deleting DE %p for %wZ Old FID %08lX-%08lX-%08lX-%08lX New FID %08lX-%08lX-%08lX-%08lX\n",
 350                                           pDirNode,
 351                                           &pDirNode->NameInformation.FileName,
 352                                           pDirNode->ObjectInformation->FileId.Cell,
 353                                           pDirNode->ObjectInformation->FileId.Volume,
 354                                           pDirNode->ObjectInformation->FileId.Vnode,
 355                                           pDirNode->ObjectInformation->FileId.Unique,
 356                                           pCurrentDirEntry->FileId.Cell,
 357                                           pCurrentDirEntry->FileId.Volume,
 358                                           pCurrentDirEntry->FileId.Vnode,
 359                                           pCurrentDirEntry->FileId.Unique);
 360
 361                             AFSDeleteDirEntry( ObjectInfoCB,
 362                                                pDirNode);
 363                         }
 364                         else
 365                         {
 366
 367                             SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_DELETED);
 368
 369                             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 370                                           AFS_TRACE_LEVEL_VERBOSE,
 371                                           "AFSEnumerateDirectory Different FIDs - Removing DE %p for %wZ Old FID %08lX-%08lX-%08lX-%08lX New FID %08lX-%08lX-%08lX-%08lX\n",
 372                                           pDirNode,
 373                                           &pDirNode->NameInformation.FileName,
 374                                           pDirNode->ObjectInformation->FileId.Cell,
 375                                           pDirNode->ObjectInformation->FileId.Volume,
 376                                           pDirNode->ObjectInformation->FileId.Vnode,
 377                                           pDirNode->ObjectInformation->FileId.Unique,
 378                                           pCurrentDirEntry->FileId.Cell,
 379                                           pCurrentDirEntry->FileId.Volume,
 380                                           pCurrentDirEntry->FileId.Vnode,
 381                                           pCurrentDirEntry->FileId.Unique);
 382
 383                             AFSRemoveNameEntry( ObjectInfoCB,
 384                                                 pDirNode);
 385                         }
 386
 387                         pDirNode = NULL;
 388                     }
 389                 }
 390
 391                 pDirNode = AFSInitDirEntry( ObjectInfoCB,
 392                                             &uniDirName,
 393                                             &uniTargetName,
 394                                             pCurrentDirEntry,
 395                                             (ULONG)InterlockedIncrement( &ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.ContentIndex));
 396
 397                 if( pDirNode == NULL)
 398                 {
 399
 400                     ntStatus = STATUS_INSUFFICIENT_RESOURCES;
 401
 402                     break;
 403                 }
 404
 405                 AFSUpdateMetaData( pDirNode,
 406                                    pCurrentDirEntry);
 407
 408                 if( pDirNode->ObjectInformation->FileType == AFS_FILE_TYPE_DIRECTORY)
 409                 {
 410
 411                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 412                                   AFS_TRACE_LEVEL_VERBOSE,
 413                                   "AFSEnumerateDirectory Setting VERIFY on entry %wZ for FID %08lX-%08lX-%08lX-%08lX\n",
 414                                   &uniDirName,
 415                                   pDirNode->ObjectInformation->FileId.Cell,
 416                                   pDirNode->ObjectInformation->FileId.Volume,
 417                                   pDirNode->ObjectInformation->FileId.Vnode,
 418                                   pDirNode->ObjectInformation->FileId.Unique);
 419
 420                     AFSAcquireExcl( pDirNode->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock,
 421                                     TRUE);
 422
 423                     SetFlag( pDirNode->ObjectInformation->Flags, AFS_OBJECT_FLAGS_VERIFY);
 424
 425                     pDirNode->ObjectInformation->DataVersion.QuadPart = (ULONGLONG)-1;
 426
 427                     AFSReleaseResource( pDirNode->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
 428                 }
 429
 430                 //
 431                 // Set up the entry length
 432                 //
 433
 434                 ulEntryLength = QuadAlign( sizeof( AFSDirEnumEntry) +
 435                                            pCurrentDirEntry->FileNameLength +
 436                                            pCurrentDirEntry->TargetNameLength);
 437
 438                 //
 439                 // Init the short name if we have one
 440                 //
 441
 442                 if( !BooleanFlagOn( pDevExt->DeviceFlags, AFS_DEVICE_FLAG_DISABLE_SHORTNAMES) &&
 443                     pCurrentDirEntry->ShortNameLength > 0)
 444                 {
 445
 446                     UNICODE_STRING uniShortName;
 447
 448                     pDirNode->NameInformation.ShortNameLength = pCurrentDirEntry->ShortNameLength;
 449
 450                     RtlCopyMemory( pDirNode->NameInformation.ShortName,
 451                                    pCurrentDirEntry->ShortName,
 452                                    pDirNode->NameInformation.ShortNameLength);
 453
 454                     //
 455                     // Generate the short name index
 456                     //
 457
 458                     uniShortName.Length = pDirNode->NameInformation.ShortNameLength;
 459                     uniShortName.MaximumLength = uniShortName.Length;
 460                     uniShortName.Buffer = pDirNode->NameInformation.ShortName;
 461
 462                     if( !RtlIsNameLegalDOS8Dot3( &pDirNode->NameInformation.FileName,
 463                                                  NULL,
 464                                                  NULL))
 465                     {
 466
 467                         pDirNode->Type.Data.ShortNameTreeEntry.HashIndex = AFSGenerateCRC( &uniShortName,
 468                                                                                            TRUE);
 469
 470                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 471                                       AFS_TRACE_LEVEL_VERBOSE,
 472                                       "AFSEnumerateDirectory Initialized short name %wZ for DE %p for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
 473                                       &uniShortName,
 474                                       pDirNode,
 475                                       &pDirNode->NameInformation.FileName,
 476                                       pCurrentDirEntry->FileId.Cell,
 477                                       pCurrentDirEntry->FileId.Volume,
 478                                       pCurrentDirEntry->FileId.Vnode,
 479                                       pCurrentDirEntry->FileId.Unique);
 480                     }
 481                     else
 482                     {
 483                         pDirNode->NameInformation.ShortNameLength = 0;
 484
 485                         RtlZeroMemory( pDirNode->NameInformation.ShortName,
 486                                        (12 * sizeof( WCHAR)));
 487                     }
 488                 }
 489                 else
 490                 {
 491
 492                     //
 493                     // No short name or short names are disabled
 494                     //
 495
 496                     pDirNode->Type.Data.ShortNameTreeEntry.HashIndex = 0;
 497                 }
 498
 499                 //
 500                 // Insert the node into the name tree
 501                 //
 502
 503                 if( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead == NULL)
 504                 {
 505
 506                     ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead = pDirNode;
 507
 508                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 509                                   AFS_TRACE_LEVEL_VERBOSE,
 510                                   "AFSEnumerateDirectory Insert DE %p to head of case sensitive tree for %wZ\n",
 511                                   pDirNode,
 512                                   &pDirNode->NameInformation.FileName);
 513                 }
 514                 else
 515                 {
 516
 517                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 518                                   AFS_TRACE_LEVEL_VERBOSE,
 519                                   "AFSEnumerateDirectory Insert DE %p to case sensitive tree for %wZ\n",
 520                                   pDirNode,
 521                                   &pDirNode->NameInformation.FileName);
 522
 523                     if( !NT_SUCCESS( AFSInsertCaseSensitiveDirEntry( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
 524                                                                      pDirNode)))
 525                     {
 526
 527                         //
 528                         // Delete this dir entry and continue on
 529                         //
 530
 531                         AFSDeleteDirEntry( ObjectInfoCB,
 532                                            pDirNode);
 533
 534                         pCurrentDirEntry = (AFSDirEnumEntry *)((char *)pCurrentDirEntry + ulEntryLength);
 535
 536                         if( ulResultLen >= ulEntryLength)
 537                         {
 538                             ulResultLen -= ulEntryLength;
 539                         }
 540                         else
 541                         {
 542                             ulResultLen = 0;
 543                         }
 544
 545                         continue;
 546                     }
 547                 }
 548
 549                 ClearFlag( pDirNode->Flags, AFS_DIR_ENTRY_NOT_IN_PARENT_TREE);
 550
 551                 if( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead == NULL)
 552                 {
 553
 554                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 555                                   AFS_TRACE_LEVEL_VERBOSE,
 556                                   "AFSEnumerateDirectory Insert DE %p to head of case insensitive tree for %wZ\n",
 557                                   pDirNode,
 558                                   &pDirNode->NameInformation.FileName);
 559
 560                     ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead = pDirNode;
 561
 562                     SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_CASE_INSENSTIVE_LIST_HEAD);
 563                 }
 564                 else
 565                 {
 566
 567                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 568                                   AFS_TRACE_LEVEL_VERBOSE,
 569                                   "AFSEnumerateDirectory Insert DE %p to case insensitive tree for %wZ\n",
 570                                   pDirNode,
 571                                   &pDirNode->NameInformation.FileName);
 572
 573                     AFSInsertCaseInsensitiveDirEntry( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead,
 574                                                       pDirNode);
 575                 }
 576
 577                 if( ObjectInfoCB->Specific.Directory.DirectoryNodeListHead == NULL)
 578                 {
 579
 580                     ObjectInfoCB->Specific.Directory.DirectoryNodeListHead = pDirNode;
 581                 }
 582                 else
 583                 {
 584
 585                     ObjectInfoCB->Specific.Directory.DirectoryNodeListTail->ListEntry.fLink = pDirNode;
 586
 587                     pDirNode->ListEntry.bLink = ObjectInfoCB->Specific.Directory.DirectoryNodeListTail;
 588                 }
 589
 590                 ObjectInfoCB->Specific.Directory.DirectoryNodeListTail = pDirNode;
 591
 592                 SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_INSERTED_ENUM_LIST);
 593
 594                 InterlockedIncrement( &ObjectInfoCB->Specific.Directory.DirectoryNodeCount);
 595
 596                 AFSDbgLogMsg( AFS_SUBSYSTEM_DIR_NODE_COUNT,
 597                               AFS_TRACE_LEVEL_VERBOSE,
 598                               "AFSEnumerateDirectory Adding entry %wZ Inc Count %d to parent FID %08lX-%08lX-%08lX-%08lX\n",
 599                               &pDirNode->NameInformation.FileName,
 600                               ObjectInfoCB->Specific.Directory.DirectoryNodeCount,
 601                               ObjectInfoCB->FileId.Cell,
 602                               ObjectInfoCB->FileId.Volume,
 603                               ObjectInfoCB->FileId.Vnode,
 604                               ObjectInfoCB->FileId.Unique);
 605
 606                 if( pDirNode->Type.Data.ShortNameTreeEntry.HashIndex != 0)
 607                 {
 608
 609                     //
 610                     // Insert the short name entry if we have a valid short name
 611                     //
 612
 613                     if( ObjectInfoCB->Specific.Directory.ShortNameTree == NULL)
 614                     {
 615
 616                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 617                                       AFS_TRACE_LEVEL_VERBOSE,
 618                                       "AFSEnumerateDirectory Insert DE %p to head of shortname tree for %wZ\n",
 619                                       pDirNode,
 620                                       &pDirNode->NameInformation.FileName);
 621
 622                         ObjectInfoCB->Specific.Directory.ShortNameTree = pDirNode;
 623
 624                         SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_INSERTED_SHORT_NAME);
 625                     }
 626                     else
 627                     {
 628
 629                         if( NT_SUCCESS( AFSInsertShortNameDirEntry( ObjectInfoCB->Specific.Directory.ShortNameTree,
 630                                                                     pDirNode)))
 631                         {
 632                             SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_INSERTED_SHORT_NAME);
 633
 634                             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 635                                           AFS_TRACE_LEVEL_VERBOSE,
 636                                           "AFSEnumerateDirectory Insert DE %p to shortname tree for %wZ\n",
 637                                           pDirNode,
 638                                           &pDirNode->NameInformation.FileName);
 639                         }
 640                     }
 641                 }
 642
 643                 //
 644                 // Next dir entry
 645                 //
 646
 647                 pCurrentDirEntry = (AFSDirEnumEntry *)((char *)pCurrentDirEntry + ulEntryLength);
 648
 649                 if( ulResultLen >= ulEntryLength)
 650                 {
 651                     ulResultLen -= ulEntryLength;
 652                 }
 653                 else
 654                 {
 655                     ulResultLen = 0;
 656                 }
 657             }
 658
 659             ulResultLen = AFS_DIR_ENUM_BUFFER_LEN;
 660
 661             //
 662             // Reset the information in the request buffer since it got trampled
 663             // above
 664             //
 665
 666             pDirQueryCB->EnumHandle = pDirEnumResponse->EnumHandle;
 667
 668             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 669                           AFS_TRACE_LEVEL_VERBOSE,
 670                           "AFSEnumerateDirectory EnumHandle %08lX\n",
 671                           pDirQueryCB->EnumHandle);
 672         }
 673
 674 try_exit:
 675
 676         //
 677         // Cleanup
 678         //
 679
 680         if( pBuffer != NULL)
 681         {
 682
 683             AFSExFreePoolWithTag( pBuffer, AFS_DIR_BUFFER_TAG);
 684         }
 685
 686         //
 687         // If the processing failed then we should reset the directory content in the event
 688         // it is re-enumerated
 689         //
 690
 691         if( !NT_SUCCESS( ntStatus))
 692         {
 693
 694             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 695                           AFS_TRACE_LEVEL_ERROR,
 696                           "AFSEnumerateDirectory Resetting content for FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
 697                           ObjectInfoCB->FileId.Cell,
 698                           ObjectInfoCB->FileId.Volume,
 699                           ObjectInfoCB->FileId.Vnode,
 700                           ObjectInfoCB->FileId.Unique,
 701                           ntStatus);
 702
 703             AFSResetDirectoryContent( ObjectInfoCB);
 704         }
 705     }
 706
 707     return ntStatus;
 708 }
 709
 710 NTSTATUS
 711 AFSEnumerateDirectoryNoResponse( IN GUID *AuthGroup,
 712                                  IN AFSFileID *FileId)
 713 {
 714
 715     NTSTATUS ntStatus = STATUS_SUCCESS;
 716     AFSDirQueryCB stDirQueryCB;
 717     ULONG   ulRequestFlags = 0;
 718
 719     __Enter
 720     {
 721
 722         //
 723         // Use the payload buffer for information we will pass to the service
 724         //
 725
 726         stDirQueryCB.EnumHandle = 0;
 727
 728         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_DIR_ENUM,
 729                                       ulRequestFlags,
 730                                       AuthGroup,
 731                                       NULL,
 732                                       FileId,
 733                                       NULL,
 734                                       0,
 735                                       (void *)&stDirQueryCB,
 736                                       sizeof( AFSDirQueryCB),
 737                                       NULL,
 738                                       NULL);
 739
 740         if( ntStatus != STATUS_SUCCESS)
 741         {
 742
 743             if( ntStatus == STATUS_NO_MORE_FILES ||
 744                 ntStatus == STATUS_NO_MORE_ENTRIES)
 745             {
 746
 747                 ntStatus = STATUS_SUCCESS;
 748             }
 749             else
 750             {
 751
 752                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 753                               AFS_TRACE_LEVEL_ERROR,
 754                               "AFSEnumerateDirectoryNoResponse Failed to enumerate directory Status %08lX\n",
 755                               ntStatus);
 756             }
 757         }
 758     }
 759
 760     return ntStatus;
 761 }
 762
 763 NTSTATUS
 764 AFSVerifyDirectoryContent( IN AFSObjectInfoCB *ObjectInfoCB,
 765                            IN GUID *AuthGroup)
 766 {
 767
 768     NTSTATUS ntStatus = STATUS_SUCCESS;
 769     void *pBuffer = NULL;
 770     ULONG ulResultLen = 0;
 771     AFSDirQueryCB *pDirQueryCB;
 772     AFSDirEnumEntry *pCurrentDirEntry = NULL;
 773     AFSDirectoryCB *pDirNode = NULL;
 774     ULONG  ulEntryLength = 0;
 775     AFSDirEnumResp *pDirEnumResponse = NULL;
 776     UNICODE_STRING uniDirName, uniTargetName;
 777     ULONG   ulRequestFlags = AFS_REQUEST_FLAG_SYNCHRONOUS | AFS_REQUEST_FLAG_FAST_REQUEST;
 778     ULONG ulCRC = 0;
 779     AFSObjectInfoCB *pObjectInfo = NULL;
 780     ULONGLONG ullIndex = 0;
 781     UNICODE_STRING uniGUID;
 782     LONG lCount;
 783     AFSDeviceExt *pDevExt = (AFSDeviceExt *) AFSRDRDeviceObject->DeviceExtension;
 784
 785     __Enter
 786     {
 787
 788         ASSERT( ExIsResourceAcquiredExclusiveLite( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.TreeLock));
 789
 790         uniGUID.Length = 0;
 791         uniGUID.MaximumLength = 0;
 792         uniGUID.Buffer = NULL;
 793
 794         if( AuthGroup != NULL)
 795         {
 796             RtlStringFromGUID( *AuthGroup,
 797                                &uniGUID);
 798         }
 799
 800         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 801                       AFS_TRACE_LEVEL_VERBOSE,
 802                       "AFSVerifyDirectoryContent Verifying content for FID %08lX-%08lX-%08lX-%08lX AuthGroup %wZ\n",
 803                       ObjectInfoCB->FileId.Cell,
 804                       ObjectInfoCB->FileId.Volume,
 805                       ObjectInfoCB->FileId.Vnode,
 806                       ObjectInfoCB->FileId.Unique,
 807                       &uniGUID);
 808
 809         if( AuthGroup != NULL)
 810         {
 811             RtlFreeUnicodeString( &uniGUID);
 812         }
 813
 814         //
 815         // Initialize the directory enumeration buffer for the directory
 816         //
 817
 818         pBuffer = AFSExAllocatePoolWithTag( PagedPool,
 819                                             AFS_DIR_ENUM_BUFFER_LEN,
 820                                             AFS_DIR_BUFFER_TAG);
 821
 822         if( pBuffer == NULL)
 823         {
 824
 825             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
 826         }
 827
 828         RtlZeroMemory( pBuffer,
 829                        AFS_DIR_ENUM_BUFFER_LEN);
 830
 831         ulResultLen = AFS_DIR_ENUM_BUFFER_LEN;
 832
 833         //
 834         // Use the payload buffer for information we will pass to the service
 835         //
 836
 837         pDirQueryCB = (AFSDirQueryCB *)pBuffer;
 838
 839         pDirQueryCB->EnumHandle = 0;
 840
 841         //
 842         // Loop on the information
 843         //
 844
 845         while( TRUE)
 846         {
 847
 848             //
 849             // If the enumeration handle is -1 then we are done
 850             //
 851
 852             if( ((ULONG)-1) == pDirQueryCB->EnumHandle )
 853             {
 854
 855                 ntStatus = STATUS_NO_MORE_ENTRIES;
 856             }
 857             else
 858             {
 859
 860                 //
 861                 // Go and retrieve the directory contents
 862                 //
 863
 864                 ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_DIR_ENUM,
 865                                               ulRequestFlags,
 866                                               AuthGroup,
 867                                               NULL,
 868                                               &ObjectInfoCB->FileId,
 869                                               ObjectInfoCB->VolumeCB->VolumeInformation.Cell,
 870                                               ObjectInfoCB->VolumeCB->VolumeInformation.CellLength,
 871                                               (void *)pDirQueryCB,
 872                                               sizeof( AFSDirQueryCB),
 873                                               pBuffer,
 874                                               &ulResultLen);
 875             }
 876
 877             if( ntStatus != STATUS_SUCCESS ||
 878                 ulResultLen == 0)
 879             {
 880
 881                 if( ntStatus == STATUS_NO_MORE_FILES ||
 882                     ntStatus == STATUS_NO_MORE_ENTRIES)
 883                 {
 884
 885                     pDirEnumResponse = (AFSDirEnumResp *)pBuffer;
 886
 887                     AFSAcquireExcl( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.TreeLock,
 888                                     TRUE);
 889
 890                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 891                                   AFS_TRACE_LEVEL_VERBOSE,
 892                                   "AFSVerifyDirectoryContent Directory Complete FID %08lX-%08lX-%08lX-%08lX Snapshot-DV %08lX:%08lX Current-DV %08lX:%08lX Status %08lX\n",
 893                                   ObjectInfoCB->FileId.Cell,
 894                                   ObjectInfoCB->FileId.Volume,
 895                                   ObjectInfoCB->FileId.Vnode,
 896                                   ObjectInfoCB->FileId.Unique,
 897                                   pDirEnumResponse->SnapshotDataVersion.HighPart,
 898                                   pDirEnumResponse->SnapshotDataVersion.LowPart,
 899                                   pDirEnumResponse->CurrentDataVersion.HighPart,
 900                                   pDirEnumResponse->CurrentDataVersion.LowPart,
 901                                   ntStatus);
 902
 903                     ntStatus = STATUS_SUCCESS;
 904
 905                     if ( pDirEnumResponse->SnapshotDataVersion.QuadPart != pDirEnumResponse->CurrentDataVersion.QuadPart )
 906                     {
 907
 908                         SetFlag( ObjectInfoCB->Flags, AFS_OBJECT_FLAGS_VERIFY);
 909
 910                         ObjectInfoCB->DataVersion.QuadPart = (ULONGLONG)-1;
 911
 912                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 913                                       AFS_TRACE_LEVEL_VERBOSE,
 914                                       "AFSVerifyDirectoryContent Force Verify due to DV change during enumeration FID %08lX-%08lX-%08lX-%08lX\n",
 915                                       ObjectInfoCB->FileId.Cell,
 916                                       ObjectInfoCB->FileId.Volume,
 917                                       ObjectInfoCB->FileId.Vnode,
 918                                       ObjectInfoCB->FileId.Unique);
 919                     }
 920                     else
 921                     {
 922
 923                         ObjectInfoCB->DataVersion = pDirEnumResponse->SnapshotDataVersion;
 924                     }
 925
 926                     AFSReleaseResource( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.TreeLock);
 927                 }
 928                 else
 929                 {
 930
 931                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 932                                   AFS_TRACE_LEVEL_ERROR,
 933                                   "AFSVerifyDirectoryContent Failed to enumerate directory FID %08lX-%08lX-%08lX-%08lX AuthGroup %wZ Status %08lX\n",
 934                                   ObjectInfoCB->FileId.Cell,
 935                                   ObjectInfoCB->FileId.Volume,
 936                                   ObjectInfoCB->FileId.Vnode,
 937                                   ObjectInfoCB->FileId.Unique,
 938                                   &uniGUID,
 939                                   ntStatus);
 940                 }
 941
 942                 break;
 943             }
 944
 945             pDirEnumResponse = (AFSDirEnumResp *)pBuffer;
 946
 947             pCurrentDirEntry = (AFSDirEnumEntry *)pDirEnumResponse->Entry;
 948
 949             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 950                           AFS_TRACE_LEVEL_VERBOSE,
 951                           "AFSVerifyDirectoryContent EnumResponse FID %08lX-%08lX-%08lX-%08lX Snapshot-DV %08lX:%08lX Current-DV %08lX:%08lX\n",
 952                           ObjectInfoCB->FileId.Cell,
 953                           ObjectInfoCB->FileId.Volume,
 954                           ObjectInfoCB->FileId.Vnode,
 955                           ObjectInfoCB->FileId.Unique,
 956                           pDirEnumResponse->SnapshotDataVersion.HighPart,
 957                           pDirEnumResponse->SnapshotDataVersion.LowPart,
 958                           pDirEnumResponse->CurrentDataVersion.HighPart,
 959                           pDirEnumResponse->CurrentDataVersion.LowPart);
 960
 961             //
 962             // Remove the leading header from the processed length
 963             //
 964
 965             ulResultLen -= FIELD_OFFSET( AFSDirEnumResp, Entry);
 966
 967             while( ulResultLen > 0)
 968             {
 969
 970                 uniDirName.Length = (USHORT)pCurrentDirEntry->FileNameLength;
 971
 972                 uniDirName.MaximumLength = uniDirName.Length;
 973
 974                 uniDirName.Buffer = (WCHAR *)((char *)pCurrentDirEntry + pCurrentDirEntry->FileNameOffset);
 975
 976                 uniTargetName.Length = (USHORT)pCurrentDirEntry->TargetNameLength;
 977
 978                 uniTargetName.MaximumLength = uniTargetName.Length;
 979
 980                 uniTargetName.Buffer = (WCHAR *)((char *)pCurrentDirEntry + pCurrentDirEntry->TargetNameOffset);
 981
 982                 //
 983                 // Does this entry already exist in the directory?
 984                 //
 985
 986                 ulCRC = AFSGenerateCRC( &uniDirName,
 987                                         FALSE);
 988
 989                 AFSLocateCaseSensitiveDirEntry( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
 990                                                 ulCRC,
 991                                                 &pDirNode);
 992
 993                 //
 994                 //
 995                 // Set up the entry length
 996                 //
 997
 998                 ulEntryLength = QuadAlign( sizeof( AFSDirEnumEntry) +
 999                                            pCurrentDirEntry->FileNameLength +
1000                                            pCurrentDirEntry->TargetNameLength);
1001
1002                 if( pDirNode &&
1003                     AFSIsEqualFID( &pCurrentDirEntry->FileId,
1004                                    &pDirNode->ObjectInformation->FileId))
1005                 {
1006
1007                     //
1008                     // Found matching directory entry by name and FileID
1009                     //
1010
1011                     AFSAcquireShared( ObjectInfoCB->VolumeCB->ObjectInfoTree.TreeLock,
1012                                       TRUE);
1013
1014                     ullIndex = AFSCreateLowIndex( &pCurrentDirEntry->FileId);
1015
1016                     ntStatus = AFSLocateHashEntry( ObjectInfoCB->VolumeCB->ObjectInfoTree.TreeHead,
1017                                                    ullIndex,
1018                                                    (AFSBTreeEntry **)&pObjectInfo);
1019
1020                     AFSReleaseResource( ObjectInfoCB->VolumeCB->ObjectInfoTree.TreeLock);
1021
1022                     if( NT_SUCCESS( ntStatus) &&
1023                         pObjectInfo != NULL)
1024                     {
1025
1026                         //
1027                         // Indicate this is a valid entry
1028                         //
1029
1030                         SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_VALID);
1031
1032                         if( pCurrentDirEntry->ShortNameLength > 0 &&
1033                             pDirNode->NameInformation.ShortNameLength > 0)
1034                         {
1035                             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1036                                           AFS_TRACE_LEVEL_VERBOSE,
1037                                           "AFSVerifyDirectoryContent Verified entry %wZ (%wZ) parent FID %08lX-%08lX-%08lX-%08lX old short name %S New short name %S\n",
1038                                           &uniDirName,
1039                                           &pDirNode->NameInformation.FileName,
1040                                           ObjectInfoCB->FileId.Cell,
1041                                           ObjectInfoCB->FileId.Volume,
1042                                           ObjectInfoCB->FileId.Vnode,
1043                                           ObjectInfoCB->FileId.Unique,
1044                                           pDirNode->NameInformation.ShortName,
1045                                           pCurrentDirEntry->ShortName);
1046                         }
1047                         else if( pCurrentDirEntry->ShortNameLength == 0 &&
1048                                  pDirNode->NameInformation.ShortNameLength > 0)
1049                         {
1050
1051                             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1052                                           AFS_TRACE_LEVEL_VERBOSE,
1053                                           "AFSVerifyDirectoryContent Verified entry %wZ (%wZ) parent FID %08lX-%08lX-%08lX-%08lX old short name %S New short name NULL\n",
1054                                           &uniDirName,
1055                                           &pDirNode->NameInformation.FileName,
1056                                           ObjectInfoCB->FileId.Cell,
1057                                           ObjectInfoCB->FileId.Volume,
1058                                           ObjectInfoCB->FileId.Vnode,
1059                                           ObjectInfoCB->FileId.Unique,
1060                                           pDirNode->NameInformation.ShortName);
1061                         }
1062                         else if( pCurrentDirEntry->ShortNameLength > 0 &&
1063                                  pDirNode->NameInformation.ShortNameLength == 0)
1064                         {
1065                             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1066                                           AFS_TRACE_LEVEL_VERBOSE,
1067                                           "AFSVerifyDirectoryContent Verified entry %wZ (%wZ) parent FID %08lX-%08lX-%08lX-%08lX old short name NULL New short name %S\n",
1068                                           &uniDirName,
1069                                           &pDirNode->NameInformation.FileName,
1070                                           ObjectInfoCB->FileId.Cell,
1071                                           ObjectInfoCB->FileId.Volume,
1072                                           ObjectInfoCB->FileId.Vnode,
1073                                           ObjectInfoCB->FileId.Unique,
1074                                           pCurrentDirEntry->ShortName);
1075                         }
1076                         else
1077                         {
1078                             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1079                                           AFS_TRACE_LEVEL_VERBOSE,
1080                                           "AFSVerifyDirectoryContent Verified entry %wZ (%wZ) parent FID %08lX-%08lX-%08lX-%08lX old short name NULL New short name NULL\n",
1081                                           &uniDirName,
1082                                           &pDirNode->NameInformation.FileName,
1083                                           ObjectInfoCB->FileId.Cell,
1084                                           ObjectInfoCB->FileId.Volume,
1085                                           ObjectInfoCB->FileId.Vnode,
1086                                           ObjectInfoCB->FileId.Unique);
1087                         }
1088
1089                         //
1090                         // Update the metadata for the entry
1091                         //
1092
1093                         if( pObjectInfo->DataVersion.QuadPart != pCurrentDirEntry->DataVersion.QuadPart)
1094                         {
1095
1096                             //
1097                             // The ObjectReferenceCount will be freed by AFSPerformObjectInvalidate
1098                             // if successfully queued.  Cannot call AFSPerformObjectInvalidate directly
1099                             // because ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.TreeLock is
1100                             // held during the sequence AFSVerifyEntry->AFSValidateDirectoryCache->
1101                             // AFSVerifyDirectoryContent and AFSPerformObjectInvalidate requires the
1102                             // Fcb->NPFcb->Resource which must be held prior to the TreeLock in the
1103                             // lock hierarchy.
1104                             //
1105
1106                             lCount = AFSObjectInfoIncrement( pObjectInfo,
1107                                                              AFS_OBJECT_REFERENCE_INVALIDATION);
1108
1109                             AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
1110                                           AFS_TRACE_LEVEL_VERBOSE,
1111                                           "AFSVerifyDirectoryContent calling AFSQueueInvalidateObject Increment count on object %p Cnt %d\n",
1112                                           pObjectInfo,
1113                                           lCount);
1114
1115                             if ( !NT_SUCCESS( AFSQueueInvalidateObject( pObjectInfo,
1116                                                                         AFS_INVALIDATE_DATA_VERSION)))
1117                             {
1118
1119                                 lCount = AFSObjectInfoDecrement( pObjectInfo,
1120                                                                  AFS_OBJECT_REFERENCE_INVALIDATION);
1121
1122                                 AFSDbgLogMsg( AFS_SUBSYSTEM_OBJECT_REF_COUNTING,
1123                                               AFS_TRACE_LEVEL_VERBOSE,
1124                                               "AFSVerifyDirectoryContent AFSQueueInvalidateObject failed Decrement count on object %p Cnt %d\n",
1125                                               pObjectInfo,
1126                                               lCount);
1127                             }
1128                         }
1129                         else
1130                         {
1131
1132                             AFSUpdateMetaData( pDirNode,
1133                                                pCurrentDirEntry);
1134                         }
1135
1136                         //
1137                         // Next dir entry
1138                         //
1139
1140                         pCurrentDirEntry = (AFSDirEnumEntry *)((char *)pCurrentDirEntry + ulEntryLength);
1141
1142                         if( ulResultLen >= ulEntryLength)
1143                         {
1144                             ulResultLen -= ulEntryLength;
1145                         }
1146                         else
1147                         {
1148                             ulResultLen = 0;
1149                         }
1150
1151                         continue;
1152                     }
1153                 }
1154                 else if ( pDirNode)
1155                 {
1156
1157                     //
1158                     // File name matches but FileID does not.
1159                     //
1160
1161                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1162                                   AFS_TRACE_LEVEL_VERBOSE,
1163                                   "AFSVerifyDirectoryContent Processing dir entry %p %wZ with different FID, same name in parent FID %08lX-%08lX-%08lX-%08lX\n",
1164                                   pDirNode,
1165                                   &pDirNode->NameInformation.FileName,
1166                                   ObjectInfoCB->FileId.Cell,
1167                                   ObjectInfoCB->FileId.Volume,
1168                                   ObjectInfoCB->FileId.Vnode,
1169                                   ObjectInfoCB->FileId.Unique);
1170
1171                     //
1172                     // Need to tear down this entry and rebuild it below
1173                     //
1174
1175                     if( pDirNode->DirOpenReferenceCount <= 0)
1176                     {
1177
1178                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1179                                       AFS_TRACE_LEVEL_VERBOSE,
1180                                       "AFSVerifyDirectoryContent Different FIDs - Deleting DE %p for %wZ Old FID %08lX-%08lX-%08lX-%08lX New FID %08lX-%08lX-%08lX-%08lX\n",
1181                                       pDirNode,
1182                                       &pDirNode->NameInformation.FileName,
1183                                       pDirNode->ObjectInformation->FileId.Cell,
1184                                       pDirNode->ObjectInformation->FileId.Volume,
1185                                       pDirNode->ObjectInformation->FileId.Vnode,
1186                                       pDirNode->ObjectInformation->FileId.Unique,
1187                                       pCurrentDirEntry->FileId.Cell,
1188                                       pCurrentDirEntry->FileId.Volume,
1189                                       pCurrentDirEntry->FileId.Vnode,
1190                                       pCurrentDirEntry->FileId.Unique);
1191
1192                         AFSDeleteDirEntry( ObjectInfoCB,
1193                                            pDirNode);
1194                     }
1195                     else
1196                     {
1197
1198                         SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_DELETED);
1199
1200                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1201                                       AFS_TRACE_LEVEL_WARNING,
1202                                       "AFSVerifyDirectoryContent Different FIDs - removing DE %p for %wZ Old FID %08lX-%08lX-%08lX-%08lX New FID %08lX-%08lX-%08lX-%08lX\n",
1203                                       pDirNode,
1204                                       &pDirNode->NameInformation.FileName,
1205                                       pDirNode->ObjectInformation->FileId.Cell,
1206                                       pDirNode->ObjectInformation->FileId.Volume,
1207                                       pDirNode->ObjectInformation->FileId.Vnode,
1208                                       pDirNode->ObjectInformation->FileId.Unique,
1209                                       pCurrentDirEntry->FileId.Cell,
1210                                       pCurrentDirEntry->FileId.Volume,
1211                                       pCurrentDirEntry->FileId.Vnode,
1212                                       pCurrentDirEntry->FileId.Unique);
1213
1214                         AFSRemoveNameEntry( ObjectInfoCB,
1215                                             pDirNode);
1216                     }
1217                 }
1218                 else
1219                 {
1220
1221                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1222                                   AFS_TRACE_LEVEL_VERBOSE,
1223                                   "AFSVerifyDirectoryContent New entry %wZ for parent FID %08lX-%08lX-%08lX-%08lX\n",
1224                                   &uniDirName,
1225                                   ObjectInfoCB->FileId.Cell,
1226                                   ObjectInfoCB->FileId.Volume,
1227                                   ObjectInfoCB->FileId.Vnode,
1228                                   ObjectInfoCB->FileId.Unique);
1229                 }
1230
1231                 pDirNode = AFSInitDirEntry( ObjectInfoCB,
1232                                             &uniDirName,
1233                                             &uniTargetName,
1234                                             pCurrentDirEntry,
1235                                             (ULONG)InterlockedIncrement( &ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.ContentIndex));
1236
1237                 if( pDirNode == NULL)
1238                 {
1239
1240                     ntStatus = STATUS_INSUFFICIENT_RESOURCES;
1241
1242                     break;
1243                 }
1244
1245                 AFSUpdateMetaData( pDirNode,
1246                                    pCurrentDirEntry);
1247
1248                 if( pDirNode->ObjectInformation->FileType == AFS_FILE_TYPE_DIRECTORY)
1249                 {
1250
1251                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1252                                   AFS_TRACE_LEVEL_VERBOSE,
1253                                   "AFSVerifyDirectoryContent Setting VERIFY on entry %wZ for FID %08lX-%08lX-%08lX-%08lX\n",
1254                                   &uniDirName,
1255                                   pDirNode->ObjectInformation->FileId.Cell,
1256                                   pDirNode->ObjectInformation->FileId.Volume,
1257                                   pDirNode->ObjectInformation->FileId.Vnode,
1258                                   pDirNode->ObjectInformation->FileId.Unique);
1259
1260                     AFSAcquireExcl( pDirNode->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock,
1261                                     TRUE);
1262
1263                     SetFlag( pDirNode->ObjectInformation->Flags, AFS_OBJECT_FLAGS_VERIFY);
1264
1265                     pDirNode->ObjectInformation->DataVersion.QuadPart = (ULONGLONG)-1;
1266
1267                     AFSReleaseResource( pDirNode->ObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
1268                 }
1269
1270                 //
1271                 // Init the short name if we have one
1272                 //
1273
1274                 if( !BooleanFlagOn( pDevExt->DeviceFlags, AFS_DEVICE_FLAG_DISABLE_SHORTNAMES) &&
1275                     pCurrentDirEntry->ShortNameLength > 0)
1276                 {
1277
1278                     UNICODE_STRING uniShortName;
1279
1280                     pDirNode->NameInformation.ShortNameLength = pCurrentDirEntry->ShortNameLength;
1281
1282                     RtlCopyMemory( pDirNode->NameInformation.ShortName,
1283                                    pCurrentDirEntry->ShortName,
1284                                    pDirNode->NameInformation.ShortNameLength);
1285
1286                     //
1287                     // Generate the short name index
1288                     //
1289
1290                     uniShortName.Length = pDirNode->NameInformation.ShortNameLength;
1291                     uniShortName.MaximumLength = uniShortName.Length;
1292                     uniShortName.Buffer = pDirNode->NameInformation.ShortName;
1293
1294                     if( !RtlIsNameLegalDOS8Dot3( &pDirNode->NameInformation.FileName,
1295                                                  NULL,
1296                                                  NULL))
1297                     {
1298
1299                         pDirNode->Type.Data.ShortNameTreeEntry.HashIndex = AFSGenerateCRC( &uniShortName,
1300                                                                                            TRUE);
1301
1302                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1303                                       AFS_TRACE_LEVEL_VERBOSE,
1304                                       "AFSVerifyDirectoryContent Initialized short name %wZ for DE %p for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
1305                                       &uniShortName,
1306                                       pDirNode,
1307                                       &pDirNode->NameInformation.FileName,
1308                                       pCurrentDirEntry->FileId.Cell,
1309                                       pCurrentDirEntry->FileId.Volume,
1310                                       pCurrentDirEntry->FileId.Vnode,
1311                                       pCurrentDirEntry->FileId.Unique);
1312                     }
1313                     else
1314                     {
1315                         pDirNode->NameInformation.ShortNameLength = 0;
1316
1317                         RtlZeroMemory( pDirNode->NameInformation.ShortName,
1318                                        (12 * sizeof( WCHAR)));
1319                     }
1320                 }
1321                 else
1322                 {
1323
1324                     //
1325                     // No short name or short names have been disabled
1326                     //
1327
1328                     pDirNode->Type.Data.ShortNameTreeEntry.HashIndex = 0;
1329                 }
1330
1331                 //
1332                 // Insert the node into the name tree
1333                 //
1334
1335                 ASSERT( ExIsResourceAcquiredExclusiveLite( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.TreeLock));
1336
1337                 if( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead == NULL)
1338                 {
1339
1340                     ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead = pDirNode;
1341
1342                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1343                                   AFS_TRACE_LEVEL_VERBOSE,
1344                                   "AFSVerifyDirectoryContent Insert DE %p to head of case sensitive tree for %wZ\n",
1345                                   pDirNode,
1346                                   &pDirNode->NameInformation.FileName);
1347                 }
1348                 else
1349                 {
1350
1351                     if( !NT_SUCCESS( AFSInsertCaseSensitiveDirEntry( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
1352                                                                      pDirNode)))
1353                     {
1354                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1355                                       AFS_TRACE_LEVEL_VERBOSE,
1356                                       "AFSVerifyDirectoryContent Failed to insert DE %p to case sensitive tree for %wZ\n",
1357                                       pDirNode,
1358                                       &pDirNode->NameInformation.FileName);
1359
1360                         //
1361                         // Delete this dir entry and continue on
1362                         //
1363
1364                         AFSDeleteDirEntry( ObjectInfoCB,
1365                                            pDirNode);
1366
1367                         pCurrentDirEntry = (AFSDirEnumEntry *)((char *)pCurrentDirEntry + ulEntryLength);
1368
1369                         if( ulResultLen >= ulEntryLength)
1370                         {
1371                             ulResultLen -= ulEntryLength;
1372                         }
1373                         else
1374                         {
1375                             ulResultLen = 0;
1376                         }
1377
1378                         continue;
1379                     }
1380                     else
1381                     {
1382                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1383                                       AFS_TRACE_LEVEL_VERBOSE,
1384                                       "AFSVerifyDirectoryContent Insert DE %p to case sensitive tree for %wZ\n",
1385                                       pDirNode,
1386                                       &pDirNode->NameInformation.FileName);
1387                     }
1388                 }
1389
1390                 ClearFlag( pDirNode->Flags, AFS_DIR_ENTRY_NOT_IN_PARENT_TREE);
1391
1392                 if( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead == NULL)
1393                 {
1394
1395                     ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead = pDirNode;
1396
1397                     SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_CASE_INSENSTIVE_LIST_HEAD);
1398
1399                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1400                                   AFS_TRACE_LEVEL_VERBOSE,
1401                                   "AFSVerifyDirectoryContent Insert DE %p to head of case insensitive tree for %wZ\n",
1402                                   pDirNode,
1403                                   &pDirNode->NameInformation.FileName);
1404                 }
1405                 else
1406                 {
1407
1408                     AFSInsertCaseInsensitiveDirEntry( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead,
1409                                                       pDirNode);
1410
1411                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1412                                   AFS_TRACE_LEVEL_VERBOSE,
1413                                   "AFSVerifyDirectoryContent Insert DE %p to case insensitive tree for %wZ\n",
1414                                   pDirNode,
1415                                   &pDirNode->NameInformation.FileName);
1416                 }
1417
1418                 if( ObjectInfoCB->Specific.Directory.DirectoryNodeListHead == NULL)
1419                 {
1420
1421                     ObjectInfoCB->Specific.Directory.DirectoryNodeListHead = pDirNode;
1422                 }
1423                 else
1424                 {
1425
1426                     (ObjectInfoCB->Specific.Directory.DirectoryNodeListTail)->ListEntry.fLink = pDirNode;
1427
1428                     pDirNode->ListEntry.bLink = ObjectInfoCB->Specific.Directory.DirectoryNodeListTail;
1429                 }
1430
1431                 ObjectInfoCB->Specific.Directory.DirectoryNodeListTail = pDirNode;
1432
1433                 SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_INSERTED_ENUM_LIST);
1434
1435                 InterlockedIncrement( &ObjectInfoCB->Specific.Directory.DirectoryNodeCount);
1436
1437                 AFSDbgLogMsg( AFS_SUBSYSTEM_DIR_NODE_COUNT,
1438                               AFS_TRACE_LEVEL_VERBOSE,
1439                               "AFSVerifyDirectoryContent Adding entry %wZ Inc Count %d to parent FID %08lX-%08lX-%08lX-%08lX\n",
1440                               &pDirNode->NameInformation.FileName,
1441                               ObjectInfoCB->Specific.Directory.DirectoryNodeCount,
1442                               ObjectInfoCB->FileId.Cell,
1443                               ObjectInfoCB->FileId.Volume,
1444                               ObjectInfoCB->FileId.Vnode,
1445                               ObjectInfoCB->FileId.Unique);
1446
1447                 if( pDirNode->Type.Data.ShortNameTreeEntry.HashIndex != 0)
1448                 {
1449
1450                     //
1451                     // Insert the short name entry if we have a valid short name
1452                     //
1453
1454                     if( ObjectInfoCB->Specific.Directory.ShortNameTree == NULL)
1455                     {
1456
1457                         ObjectInfoCB->Specific.Directory.ShortNameTree = pDirNode;
1458
1459                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1460                                       AFS_TRACE_LEVEL_VERBOSE,
1461                                       "AFSVerifyDirectoryContent Insert DE %p to head of shortname tree for %wZ\n",
1462                                       pDirNode,
1463                                       &pDirNode->NameInformation.FileName);
1464
1465                         SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_INSERTED_SHORT_NAME);
1466                     }
1467                     else
1468                     {
1469
1470                         if( !NT_SUCCESS( AFSInsertShortNameDirEntry( ObjectInfoCB->Specific.Directory.ShortNameTree,
1471                                                                      pDirNode)))
1472                         {
1473                             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1474                                           AFS_TRACE_LEVEL_VERBOSE,
1475                                           "AFSVerifyDirectoryContent Failed to insert DE %p (%08lX) to shortname tree for %wZ\n",
1476                                           pDirNode,
1477                                           pDirNode->Type.Data.ShortNameTreeEntry.HashIndex,
1478                                           &pDirNode->NameInformation.FileName);
1479                         }
1480                         else
1481                         {
1482                             SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_INSERTED_SHORT_NAME);
1483
1484                             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1485                                           AFS_TRACE_LEVEL_VERBOSE,
1486                                           "AFSVerifyDirectoryContent Insert DE %p to shortname tree for %wZ\n",
1487                                           pDirNode,
1488                                           &pDirNode->NameInformation.FileName);
1489                         }
1490                     }
1491                 }
1492
1493                 SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_VALID);
1494
1495                 //
1496                 // Next dir entry
1497                 //
1498
1499                 pCurrentDirEntry = (AFSDirEnumEntry *)((char *)pCurrentDirEntry + ulEntryLength);
1500
1501                 if( ulResultLen >= ulEntryLength)
1502                 {
1503                     ulResultLen -= ulEntryLength;
1504                 }
1505                 else
1506                 {
1507                     ulResultLen = 0;
1508                 }
1509             }
1510
1511             ulResultLen = AFS_DIR_ENUM_BUFFER_LEN;
1512
1513             //
1514             // Reset the information in the request buffer since it got trampled
1515             // above
1516             //
1517
1518             pDirQueryCB->EnumHandle = pDirEnumResponse->EnumHandle;
1519         }
1520
1521 try_exit:
1522
1523         //
1524         // Cleanup
1525         //
1526
1527         if( pBuffer != NULL)
1528         {
1529
1530             AFSExFreePoolWithTag( pBuffer, AFS_DIR_BUFFER_TAG);
1531         }
1532     }
1533
1534     return ntStatus;
1535 }
1536
1537 NTSTATUS
1538 AFSNotifyFileCreate( IN GUID            *AuthGroup,
1539                      IN AFSObjectInfoCB *ParentObjectInfo,
1540                      IN PLARGE_INTEGER FileSize,
1541                      IN ULONG FileAttributes,
1542                      IN UNICODE_STRING *FileName,
1543                      OUT AFSDirectoryCB **DirNode)
1544 {
1545
1546     NTSTATUS ntStatus = STATUS_SUCCESS;
1547     AFSFileCreateCB stCreateCB;
1548     AFSFileCreateResultCB *pResultCB = NULL;
1549     ULONG ulResultLen = 0;
1550     UNICODE_STRING uniTargetName;
1551     AFSDirectoryCB *pDirNode = NULL;
1552     ULONG     ulCRC = 0;
1553     LONG       lCount;
1554     LARGE_INTEGER liOldDataVersion;
1555     AFSDeviceExt *pDevExt = (AFSDeviceExt *) AFSRDRDeviceObject->DeviceExtension;
1556     BOOLEAN bReleaseParentTreeLock = FALSE;
1557
1558     __Enter
1559     {
1560
1561         *DirNode = NULL;
1562
1563         //
1564         // Init the control block for the request
1565         //
1566
1567         RtlZeroMemory( &stCreateCB,
1568                        sizeof( AFSFileCreateCB));
1569
1570         stCreateCB.ParentId = ParentObjectInfo->FileId;
1571
1572         stCreateCB.AllocationSize = *FileSize;
1573
1574         stCreateCB.FileAttributes = FileAttributes;
1575
1576         stCreateCB.EaSize = 0;
1577
1578         liOldDataVersion = ParentObjectInfo->DataVersion;
1579
1580         //
1581         // Allocate our return buffer
1582         //
1583
1584         pResultCB = (AFSFileCreateResultCB *)AFSExAllocatePoolWithTag( PagedPool,
1585                                                                        PAGE_SIZE,
1586                                                                        AFS_GENERIC_MEMORY_1_TAG);
1587
1588         if( pResultCB == NULL)
1589         {
1590
1591             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
1592         }
1593
1594         RtlZeroMemory( pResultCB,
1595                        PAGE_SIZE);
1596
1597         ulResultLen = PAGE_SIZE;
1598
1599         //
1600         // Send the call to the service
1601         //
1602
1603         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_CREATE_FILE,
1604                                       AFS_REQUEST_FLAG_SYNCHRONOUS | AFS_REQUEST_FLAG_HOLD_FID,
1605                                       AuthGroup,
1606                                       FileName,
1607                                       NULL,
1608                                       NULL,
1609                                       0,
1610                                       &stCreateCB,
1611                                       sizeof( AFSFileCreateCB),
1612                                       pResultCB,
1613                                       &ulResultLen);
1614
1615         if( ntStatus != STATUS_SUCCESS)
1616         {
1617
1618             if( NT_SUCCESS( ntStatus))
1619             {
1620
1621                 ntStatus = STATUS_DEVICE_NOT_READY;
1622             }
1623
1624             try_return( ntStatus);
1625         }
1626
1627         //
1628         // We may have raced with an invalidation call and a subsequent re-enumeration of this parent
1629         // and though we created the node, it is already in our list. If this is the case then
1630         // look up the entry rather than create a new entry
1631         // The check is to ensure the DV has been modified
1632         //
1633
1634         AFSAcquireExcl( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
1635                         TRUE);
1636
1637         bReleaseParentTreeLock = TRUE;
1638
1639         if( ParentObjectInfo->DataVersion.QuadPart != pResultCB->ParentDataVersion.QuadPart - 1)
1640         {
1641
1642             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1643                           AFS_TRACE_LEVEL_WARNING,
1644                           "AFSNotifyFileCreate Raced with an invalidate call and a re-enumeration for entry %wZ ParentFID %08lX-%08lX-%08lX-%08lX Version (%08lX:%08lX != %08lX:%08lX - 1)\n",
1645                           FileName,
1646                           ParentObjectInfo->FileId.Cell,
1647                           ParentObjectInfo->FileId.Volume,
1648                           ParentObjectInfo->FileId.Vnode,
1649                           ParentObjectInfo->FileId.Unique,
1650                           ParentObjectInfo->DataVersion.HighPart,
1651                           ParentObjectInfo->DataVersion.LowPart,
1652                           pResultCB->ParentDataVersion.HighPart,
1653                           pResultCB->ParentDataVersion.LowPart);
1654
1655             //
1656             // We raced so go and lookup the directory entry in the parent
1657             //
1658
1659             ulCRC = AFSGenerateCRC( FileName,
1660                                     FALSE);
1661
1662             AFSLocateCaseSensitiveDirEntry( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
1663                                             ulCRC,
1664                                             &pDirNode);
1665
1666             if( pDirNode != NULL)
1667             {
1668
1669                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1670                               AFS_TRACE_LEVEL_VERBOSE,
1671                               "AFSNotifyFileCreate Located dir entry %p for file %wZ\n",
1672                               pDirNode,
1673                               FileName);
1674
1675                 if ( AFSIsEqualFID( &pDirNode->ObjectInformation->FileId,
1676                                     &pResultCB->DirEnum.FileId))
1677                 {
1678
1679                     *DirNode = pDirNode;
1680
1681                     try_return( ntStatus = STATUS_REPARSE);
1682                 }
1683                 else
1684                 {
1685
1686                     //
1687                     // We found an entry that matches the desired name but it is not the
1688                     // same as the one that was created for us by the file server.
1689                     //
1690
1691                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1692                                   AFS_TRACE_LEVEL_ERROR,
1693                                   "AFSNotifyFileCreate Found matching name entry %wZ DE %p FID %08lX-%08lX-%08lX-%08lX != FID %08lX-%08lX-%08lX-%08lX\n",
1694                                   FileName,
1695                                   pDirNode,
1696                                   pDirNode->ObjectInformation->FileId.Cell,
1697                                   pDirNode->ObjectInformation->FileId.Volume,
1698                                   pDirNode->ObjectInformation->FileId.Vnode,
1699                                   pDirNode->ObjectInformation->FileId.Unique,
1700                                   pResultCB->DirEnum.FileId.Cell,
1701                                   pResultCB->DirEnum.FileId.Volume,
1702                                   pResultCB->DirEnum.FileId.Vnode,
1703                                   pResultCB->DirEnum.FileId.Unique);
1704
1705                     if( pDirNode->DirOpenReferenceCount <= 0)
1706                     {
1707
1708                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1709                                       AFS_TRACE_LEVEL_VERBOSE,
1710                                       "AFSNotifyFileCreate Different FIDs - Deleting DE %p for %wZ Old FID %08lX-%08lX-%08lX-%08lX New FID %08lX-%08lX-%08lX-%08lX\n",
1711                                       pDirNode,
1712                                       &pDirNode->NameInformation.FileName,
1713                                       pDirNode->ObjectInformation->FileId.Cell,
1714                                       pDirNode->ObjectInformation->FileId.Volume,
1715                                       pDirNode->ObjectInformation->FileId.Vnode,
1716                                       pDirNode->ObjectInformation->FileId.Unique,
1717                                       pResultCB->DirEnum.FileId.Cell,
1718                                       pResultCB->DirEnum.FileId.Volume,
1719                                       pResultCB->DirEnum.FileId.Vnode,
1720                                       pResultCB->DirEnum.FileId.Unique);
1721
1722                         AFSDeleteDirEntry( ParentObjectInfo,
1723                                            pDirNode);
1724                     }
1725                     else
1726                     {
1727
1728                         SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_DELETED);
1729
1730                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1731                                       AFS_TRACE_LEVEL_VERBOSE,
1732                                       "AFSNotifyFileCreate Different FIDs - Removing DE %p for %wZ Old FID %08lX-%08lX-%08lX-%08lX New FID %08lX-%08lX-%08lX-%08lX\n",
1733                                       pDirNode,
1734                                       &pDirNode->NameInformation.FileName,
1735                                       pDirNode->ObjectInformation->FileId.Cell,
1736                                       pDirNode->ObjectInformation->FileId.Volume,
1737                                       pDirNode->ObjectInformation->FileId.Vnode,
1738                                       pDirNode->ObjectInformation->FileId.Unique,
1739                                       pResultCB->DirEnum.FileId.Cell,
1740                                       pResultCB->DirEnum.FileId.Volume,
1741                                       pResultCB->DirEnum.FileId.Vnode,
1742                                       pResultCB->DirEnum.FileId.Unique);
1743
1744                         AFSRemoveNameEntry( ParentObjectInfo,
1745                                             pDirNode);
1746                     }
1747
1748                     pDirNode = NULL;
1749                 }
1750             }
1751
1752             //
1753             // We are unsure of our current data so set the verify flag. It may already be set
1754             // but no big deal to reset it
1755             //
1756
1757             SetFlag( ParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
1758
1759             ParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
1760         }
1761
1762         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1763                       AFS_TRACE_LEVEL_VERBOSE,
1764                       "AFSNotifyFileCreate Creating new entry %wZ\n",
1765                       FileName);
1766
1767         //
1768         // Initialize the directory entry
1769         //
1770
1771         uniTargetName.Length = (USHORT)pResultCB->DirEnum.TargetNameLength;
1772
1773         uniTargetName.MaximumLength = uniTargetName.Length;
1774
1775         uniTargetName.Buffer = (WCHAR *)((char *)&pResultCB->DirEnum + pResultCB->DirEnum.TargetNameOffset);
1776
1777         pDirNode = AFSInitDirEntry( ParentObjectInfo,
1778                                     FileName,
1779                                     &uniTargetName,
1780                                     &pResultCB->DirEnum,
1781                                     (ULONG)InterlockedIncrement( &ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.ContentIndex));
1782
1783         if( pDirNode == NULL)
1784         {
1785
1786             SetFlag( ParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
1787
1788             ParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
1789
1790             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
1791         }
1792
1793         //
1794         // Init the short name if we have one
1795         //
1796
1797         if( !BooleanFlagOn( pDevExt->DeviceFlags, AFS_DEVICE_FLAG_DISABLE_SHORTNAMES) &&
1798             pResultCB->DirEnum.ShortNameLength > 0)
1799         {
1800
1801             UNICODE_STRING uniShortName;
1802
1803             pDirNode->NameInformation.ShortNameLength = pResultCB->DirEnum.ShortNameLength;
1804
1805             RtlCopyMemory( pDirNode->NameInformation.ShortName,
1806                            pResultCB->DirEnum.ShortName,
1807                            pDirNode->NameInformation.ShortNameLength);
1808
1809             //
1810             // Generate the short name index
1811             //
1812
1813             uniShortName.Length = pDirNode->NameInformation.ShortNameLength;
1814             uniShortName.Buffer = pDirNode->NameInformation.ShortName;
1815
1816             pDirNode->Type.Data.ShortNameTreeEntry.HashIndex = AFSGenerateCRC( &uniShortName,
1817                                                                                TRUE);
1818
1819             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1820                           AFS_TRACE_LEVEL_VERBOSE,
1821                           "AFSNotifyFileCreate Initialized short name %wZ for DE %p for %wZ\n",
1822                           &uniShortName,
1823                           pDirNode,
1824                           &pDirNode->NameInformation.FileName);
1825         }
1826         else
1827         {
1828             //
1829             // No short name or short names are disabled
1830             //
1831
1832             pDirNode->Type.Data.ShortNameTreeEntry.HashIndex = 0;
1833         }
1834
1835         if ( !BooleanFlagOn( ParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY))
1836         {
1837
1838             //
1839             // Update the parent data version
1840             //
1841
1842             ParentObjectInfo->DataVersion = pResultCB->ParentDataVersion;
1843
1844             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1845                           AFS_TRACE_LEVEL_VERBOSE,
1846                           "AFSNotifyFileCreate entry %wZ ParentFID %08lX-%08lX-%08lX-%08lX Version %08lX:%08lX\n",
1847                           FileName,
1848                           ParentObjectInfo->FileId.Cell,
1849                           ParentObjectInfo->FileId.Volume,
1850                           ParentObjectInfo->FileId.Vnode,
1851                           ParentObjectInfo->FileId.Unique,
1852                           ParentObjectInfo->DataVersion.QuadPart);
1853         }
1854
1855         //
1856         // Return the directory node
1857         //
1858
1859         *DirNode = pDirNode;
1860
1861 try_exit:
1862
1863         if ( *DirNode != NULL)
1864         {
1865
1866             lCount = InterlockedIncrement( &(*DirNode)->DirOpenReferenceCount);
1867
1868             AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1869                           AFS_TRACE_LEVEL_VERBOSE,
1870                           "AFSNotifyFileCreate Increment count on %wZ DE %p Cnt %d\n",
1871                           &(*DirNode)->NameInformation.FileName,
1872                           *DirNode,
1873                           lCount);
1874
1875             ASSERT( lCount >= 0);
1876         }
1877
1878         if ( bReleaseParentTreeLock)
1879         {
1880
1881             AFSReleaseResource( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
1882         }
1883
1884         if( pResultCB != NULL)
1885         {
1886
1887             AFSExFreePoolWithTag( pResultCB, AFS_GENERIC_MEMORY_1_TAG);
1888         }
1889     }
1890
1891     return ntStatus;
1892 }
1893
1894 NTSTATUS
1895 AFSUpdateFileInformation( IN AFSFileID *ParentFid,
1896                           IN AFSObjectInfoCB *ObjectInfo,
1897                           IN GUID *AuthGroup)
1898 {
1899
1900     NTSTATUS ntStatus = STATUS_SUCCESS;
1901     AFSFileUpdateCB stUpdateCB;
1902     ULONG ulResultLen = 0;
1903     AFSFileUpdateResultCB *pUpdateResultCB = NULL;
1904
1905     __Enter
1906     {
1907
1908         //
1909         // Init the control block for the request
1910         //
1911
1912         RtlZeroMemory( &stUpdateCB,
1913                        sizeof( AFSFileUpdateCB));
1914
1915         stUpdateCB.AllocationSize = ObjectInfo->EndOfFile;
1916
1917         stUpdateCB.FileAttributes = ObjectInfo->FileAttributes;
1918
1919         stUpdateCB.EaSize = ObjectInfo->EaSize;
1920
1921         stUpdateCB.ParentId = *ParentFid;
1922
1923         stUpdateCB.LastAccessTime = ObjectInfo->LastAccessTime;
1924
1925         stUpdateCB.CreateTime = ObjectInfo->CreationTime;
1926
1927         stUpdateCB.ChangeTime = ObjectInfo->ChangeTime;
1928
1929         stUpdateCB.LastWriteTime = ObjectInfo->LastWriteTime;
1930
1931         pUpdateResultCB = (AFSFileUpdateResultCB *)AFSExAllocatePoolWithTag( PagedPool,
1932                                                                              PAGE_SIZE,
1933                                                                              AFS_UPDATE_RESULT_TAG);
1934
1935         if( pUpdateResultCB == NULL)
1936         {
1937
1938             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
1939         }
1940
1941         ulResultLen = PAGE_SIZE;
1942
1943         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_UPDATE_FILE,
1944                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
1945                                       AuthGroup,
1946                                       NULL,
1947                                       &ObjectInfo->FileId,
1948                                       ObjectInfo->VolumeCB->VolumeInformation.Cell,
1949                                       ObjectInfo->VolumeCB->VolumeInformation.CellLength,
1950                                       &stUpdateCB,
1951                                       sizeof( AFSFileUpdateCB),
1952                                       pUpdateResultCB,
1953                                       &ulResultLen);
1954
1955         if( ntStatus != STATUS_SUCCESS)
1956         {
1957
1958             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1959                           AFS_TRACE_LEVEL_ERROR,
1960                           "AFSUpdateFileInformation failed FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1961                           ObjectInfo->FileId.Cell,
1962                           ObjectInfo->FileId.Volume,
1963                           ObjectInfo->FileId.Vnode,
1964                           ObjectInfo->FileId.Unique,
1965                           ntStatus);
1966
1967             try_return( ntStatus);
1968         }
1969
1970         //
1971         // Update the data version
1972         //
1973
1974         AFSAcquireExcl( ObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
1975                         TRUE);
1976
1977         if ( !BooleanFlagOn( ObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY))
1978         {
1979
1980             ObjectInfo->DataVersion = pUpdateResultCB->DirEnum.DataVersion;
1981         }
1982
1983         AFSReleaseResource( ObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
1984
1985 try_exit:
1986
1987         if( pUpdateResultCB != NULL)
1988         {
1989
1990             AFSExFreePoolWithTag( pUpdateResultCB, AFS_UPDATE_RESULT_TAG);
1991         }
1992     }
1993
1994     return ntStatus;
1995 }
1996
1997 NTSTATUS
1998 AFSNotifyDelete( IN AFSDirectoryCB *DirectoryCB,
1999                  IN GUID           *AuthGroup,
2000                  IN BOOLEAN         CheckOnly)
2001 {
2002     NTSTATUS ntStatus = STATUS_SUCCESS;
2003     ULONG ulResultLen = 0;
2004     AFSFileDeleteCB stDelete;
2005     AFSFileDeleteResultCB stDeleteResult;
2006     ULONG ulRequestFlags = AFS_REQUEST_FLAG_SYNCHRONOUS;
2007     AFSObjectInfoCB *pObjectInfo = NULL;
2008     AFSObjectInfoCB *pParentObjectInfo = NULL;
2009
2010     __Enter
2011     {
2012
2013         pObjectInfo = DirectoryCB->ObjectInformation;
2014
2015         pParentObjectInfo = AFSFindObjectInfo( pObjectInfo->VolumeCB,
2016                                                &pObjectInfo->ParentFileId);
2017
2018         stDelete.ParentId = pObjectInfo->ParentFileId;
2019
2020         stDelete.ProcessId = (ULONGLONG)PsGetCurrentProcessId();
2021
2022         ulResultLen = sizeof( AFSFileDeleteResultCB);
2023
2024         if( CheckOnly)
2025         {
2026             ulRequestFlags |= AFS_REQUEST_FLAG_CHECK_ONLY;
2027         }
2028
2029         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_DELETE_FILE,
2030                                       ulRequestFlags,
2031                                       AuthGroup,
2032                                       &DirectoryCB->NameInformation.FileName,
2033                                       &pObjectInfo->FileId,
2034                                       pObjectInfo->VolumeCB->VolumeInformation.Cell,
2035                                       pObjectInfo->VolumeCB->VolumeInformation.CellLength,
2036                                       &stDelete,
2037                                       sizeof( AFSFileDeleteCB),
2038                                       &stDeleteResult,
2039                                       &ulResultLen);
2040
2041         if( ntStatus != STATUS_SUCCESS)
2042         {
2043
2044             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2045                           AFS_TRACE_LEVEL_ERROR,
2046                           "AFSNotifyDelete failed ParentFID %08lX-%08lX-%08lX-%08lX %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
2047                           stDelete.ParentId.Cell,
2048                           stDelete.ParentId.Volume,
2049                           stDelete.ParentId.Vnode,
2050                           stDelete.ParentId.Unique,
2051                           &DirectoryCB->NameInformation.FileName,
2052                           pObjectInfo->FileId.Cell,
2053                           pObjectInfo->FileId.Volume,
2054                           pObjectInfo->FileId.Vnode,
2055                           pObjectInfo->FileId.Unique,
2056                           ntStatus);
2057
2058             try_return( ntStatus);
2059         }
2060
2061         AFSAcquireExcl( pObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
2062                         TRUE);
2063
2064         if( CheckOnly)
2065         {
2066
2067             //
2068             // Validate the parent data version
2069             //
2070
2071             if( pParentObjectInfo->DataVersion.QuadPart != stDeleteResult.ParentDataVersion.QuadPart)
2072             {
2073
2074                 SetFlag( pParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
2075
2076                 pParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
2077             }
2078         }
2079         else
2080         {
2081
2082             //
2083             // Update the parent data version
2084             //
2085
2086             if( pParentObjectInfo->DataVersion.QuadPart != stDeleteResult.ParentDataVersion.QuadPart - 1)
2087             {
2088
2089                 SetFlag( pParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
2090
2091                 pParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
2092             }
2093             else
2094             {
2095
2096                 //
2097                 // TODO -- The entry must be removed from the directory at which point the
2098                 // Directory data version number can be updated.  Until then we must force
2099                 // a verification.
2100                 //
2101                 // pParentObjectInfor->DataVersion.QuadPart = stDeleteResult.ParentDataVersion.QuadPart;
2102                 //
2103
2104                 SetFlag( pParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
2105
2106                 pParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
2107             }
2108         }
2109
2110         AFSReleaseResource( pObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
2111
2112 try_exit:
2113
2114         if ( pParentObjectInfo)
2115         {
2116
2117             AFSReleaseObjectInfo( &pParentObjectInfo);
2118         }
2119     }
2120
2121     return ntStatus;
2122 }
2123
2124
2125 NTSTATUS
2126 AFSNotifyHardLink( IN AFSObjectInfoCB *ObjectInfo,
2127                    IN GUID            *AuthGroup,
2128                    IN AFSObjectInfoCB *ParentObjectInfo,
2129                    IN AFSObjectInfoCB *TargetParentObjectInfo,
2130                    IN AFSDirectoryCB  *SourceDirectoryCB,
2131                    IN UNICODE_STRING  *TargetName,
2132                    IN BOOLEAN          bReplaceIfExists,
2133                    OUT AFSDirectoryCB **TargetDirectoryCB)
2134 {
2135
2136     NTSTATUS ntStatus = STATUS_SUCCESS;
2137     AFSFileHardLinkCB *pHardLinkCB = NULL;
2138     AFSFileHardLinkResultCB *pResultCB = NULL;
2139     ULONG ulResultLen = 0;
2140     AFSDirectoryCB *pDirNode = NULL;
2141     ULONG     ulCRC = 0;
2142     BOOLEAN bReleaseParentLock = FALSE, bReleaseTargetParentLock = FALSE;
2143     AFSDeviceExt *pDevExt = (AFSDeviceExt *) AFSRDRDeviceObject->DeviceExtension;
2144     LONG lCount;
2145
2146     __Enter
2147     {
2148
2149         //
2150         // Init the control block for the request
2151         //
2152
2153         pHardLinkCB = (AFSFileHardLinkCB *)AFSExAllocatePoolWithTag( PagedPool,
2154                                                                      PAGE_SIZE,
2155                                                                      AFS_HARDLINK_REQUEST_TAG);
2156
2157         if( pHardLinkCB == NULL)
2158         {
2159
2160             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2161         }
2162
2163         RtlZeroMemory( pHardLinkCB,
2164                        PAGE_SIZE);
2165
2166         pHardLinkCB->SourceParentId = ParentObjectInfo->FileId;
2167
2168         pHardLinkCB->TargetParentId = TargetParentObjectInfo->FileId;
2169
2170         pHardLinkCB->TargetNameLength = TargetName->Length;
2171
2172         RtlCopyMemory( pHardLinkCB->TargetName,
2173                        TargetName->Buffer,
2174                        TargetName->Length);
2175
2176         pHardLinkCB->bReplaceIfExists = bReplaceIfExists;
2177
2178         //
2179         // Use the same buffer for the result control block
2180         //
2181
2182         pResultCB = (AFSFileHardLinkResultCB *)pHardLinkCB;
2183
2184         ulResultLen = PAGE_SIZE;
2185
2186         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_HARDLINK_FILE,
2187                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
2188                                       AuthGroup,
2189                                       &SourceDirectoryCB->NameInformation.FileName,
2190                                       &ObjectInfo->FileId,
2191                                       ObjectInfo->VolumeCB->VolumeInformation.Cell,
2192                                       ObjectInfo->VolumeCB->VolumeInformation.CellLength,
2193                                       pHardLinkCB,
2194                                       sizeof( AFSFileHardLinkCB) + TargetName->Length,
2195                                       pResultCB,
2196                                       &ulResultLen);
2197
2198         if( ntStatus != STATUS_SUCCESS)
2199         {
2200
2201             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2202                           AFS_TRACE_LEVEL_ERROR,
2203                           "AFSNotifyHardLink failed FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
2204                           ObjectInfo->FileId.Cell,
2205                           ObjectInfo->FileId.Volume,
2206                           ObjectInfo->FileId.Vnode,
2207                           ObjectInfo->FileId.Unique,
2208                           ntStatus);
2209
2210             try_return( ntStatus);
2211         }
2212
2213         //
2214         // Update the information from the returned data
2215         //
2216
2217         if ( ParentObjectInfo != TargetParentObjectInfo)
2218         {
2219
2220             AFSAcquireExcl( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
2221                             TRUE);
2222
2223             bReleaseParentLock = TRUE;
2224
2225             if ( ParentObjectInfo->DataVersion.QuadPart == pResultCB->SourceParentDataVersion.QuadPart - 1)
2226             {
2227
2228                 ParentObjectInfo->DataVersion = pResultCB->SourceParentDataVersion;
2229             }
2230             else
2231             {
2232
2233                 SetFlag( ParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
2234
2235                 ParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
2236             }
2237         }
2238
2239         AFSAcquireExcl( TargetParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
2240                         TRUE);
2241
2242         bReleaseTargetParentLock = TRUE;
2243
2244         if ( TargetParentObjectInfo->DataVersion.QuadPart == pResultCB->TargetParentDataVersion.QuadPart - 1)
2245         {
2246
2247             TargetParentObjectInfo->DataVersion = pResultCB->TargetParentDataVersion;
2248         }
2249         else
2250         {
2251
2252             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2253                           AFS_TRACE_LEVEL_WARNING,
2254                           "AFSNotifyHardLink Raced with an invalidate call and a re-enumeration for entry %wZ ParentFID %08lX-%08lX-%08lX-%08lX Version (%08lX:%08lX != %08lX:%08lX - 1)\n",
2255                           TargetName,
2256                           TargetParentObjectInfo->FileId.Cell,
2257                           TargetParentObjectInfo->FileId.Volume,
2258                           TargetParentObjectInfo->FileId.Vnode,
2259                           TargetParentObjectInfo->FileId.Unique,
2260                           TargetParentObjectInfo->DataVersion.HighPart,
2261                           TargetParentObjectInfo->DataVersion.LowPart,
2262                           pResultCB->TargetParentDataVersion.HighPart,
2263                           pResultCB->TargetParentDataVersion.LowPart);
2264
2265             //
2266             // We raced so go and lookup the directory entry in the parent
2267             //
2268
2269             ulCRC = AFSGenerateCRC( TargetName,
2270                                     FALSE);
2271
2272             AFSLocateCaseSensitiveDirEntry( TargetParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
2273                                             ulCRC,
2274                                             &pDirNode);
2275
2276             if( pDirNode != NULL)
2277             {
2278
2279                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2280                               AFS_TRACE_LEVEL_VERBOSE,
2281                               "AFSNotifyHardLink Located dir entry %p for file %wZ\n",
2282                               pDirNode,
2283                               TargetName);
2284
2285                 if ( AFSIsEqualFID( &pDirNode->ObjectInformation->FileId,
2286                                     &pResultCB->DirEnum.FileId))
2287                 {
2288
2289                     try_return( ntStatus = STATUS_REPARSE);
2290                 }
2291                 else
2292                 {
2293
2294                     //
2295                     // We found an entry that matches the desired name but it is not the
2296                     // same as the one that was created for us by the file server.
2297                     //
2298
2299                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2300                                   AFS_TRACE_LEVEL_ERROR,
2301                                   "AFSNotifyHardLink Found matching name entry %wZ DE %p FID %08lX-%08lX-%08lX-%08lX != FID %08lX-%08lX-%08lX-%08lX\n",
2302                                   TargetName,
2303                                   pDirNode,
2304                                   pDirNode->ObjectInformation->FileId.Cell,
2305                                   pDirNode->ObjectInformation->FileId.Volume,
2306                                   pDirNode->ObjectInformation->FileId.Vnode,
2307                                   pDirNode->ObjectInformation->FileId.Unique,
2308                                   pResultCB->DirEnum.FileId.Cell,
2309                                   pResultCB->DirEnum.FileId.Volume,
2310                                   pResultCB->DirEnum.FileId.Vnode,
2311                                   pResultCB->DirEnum.FileId.Unique);
2312
2313                     if( pDirNode->DirOpenReferenceCount <= 0)
2314                     {
2315
2316                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2317                                       AFS_TRACE_LEVEL_VERBOSE,
2318                                       "AFSNotifyHardLink Different FIDs - Deleting DE %p for %wZ Old FID %08lX-%08lX-%08lX-%08lX New FID %08lX-%08lX-%08lX-%08lX\n",
2319                                       pDirNode,
2320                                       &pDirNode->NameInformation.FileName,
2321                                       pDirNode->ObjectInformation->FileId.Cell,
2322                                       pDirNode->ObjectInformation->FileId.Volume,
2323                                       pDirNode->ObjectInformation->FileId.Vnode,
2324                                       pDirNode->ObjectInformation->FileId.Unique,
2325                                       pResultCB->DirEnum.FileId.Cell,
2326                                       pResultCB->DirEnum.FileId.Volume,
2327                                       pResultCB->DirEnum.FileId.Vnode,
2328                                       pResultCB->DirEnum.FileId.Unique);
2329
2330                         AFSDeleteDirEntry( TargetParentObjectInfo,
2331                                            pDirNode);
2332                     }
2333                     else
2334                     {
2335
2336                         SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_DELETED);
2337
2338                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2339                                       AFS_TRACE_LEVEL_VERBOSE,
2340                                       "AFSNotifyHardLink Different FIDs - Removing DE %p for %wZ Old FID %08lX-%08lX-%08lX-%08lX New FID %08lX-%08lX-%08lX-%08lX\n",
2341                                       pDirNode,
2342                                       &pDirNode->NameInformation.FileName,
2343                                       pDirNode->ObjectInformation->FileId.Cell,
2344                                       pDirNode->ObjectInformation->FileId.Volume,
2345                                       pDirNode->ObjectInformation->FileId.Vnode,
2346                                       pDirNode->ObjectInformation->FileId.Unique,
2347                                       pResultCB->DirEnum.FileId.Cell,
2348                                       pResultCB->DirEnum.FileId.Volume,
2349                                       pResultCB->DirEnum.FileId.Vnode,
2350                                       pResultCB->DirEnum.FileId.Unique);
2351
2352                         AFSRemoveNameEntry( TargetParentObjectInfo,
2353                                             pDirNode);
2354                     }
2355
2356                     pDirNode = NULL;
2357                 }
2358             }
2359
2360             //
2361             // We are unsure of our current data so set the verify flag. It may already be set
2362             // but no big deal to reset it
2363             //
2364
2365             SetFlag( TargetParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
2366
2367             TargetParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
2368         }
2369
2370         //
2371         // Create the hard link entry
2372         //
2373
2374         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2375                       AFS_TRACE_LEVEL_VERBOSE,
2376                       "AFSNotifyHardLink Creating new entry %wZ\n",
2377                       TargetName);
2378
2379         //
2380         // Initialize the directory entry
2381         //
2382
2383         pDirNode = AFSInitDirEntry( TargetParentObjectInfo,
2384                                     TargetName,
2385                                     NULL,
2386                                     &pResultCB->DirEnum,
2387                                     (ULONG)InterlockedIncrement( &TargetParentObjectInfo->Specific.Directory.DirectoryNodeHdr.ContentIndex));
2388
2389         if( pDirNode == NULL)
2390         {
2391
2392             SetFlag( TargetParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
2393
2394             TargetParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
2395
2396             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2397         }
2398
2399         //
2400         // Init the short name if we have one
2401         //
2402
2403         if( !BooleanFlagOn( pDevExt->DeviceFlags, AFS_DEVICE_FLAG_DISABLE_SHORTNAMES) &&
2404             pResultCB->DirEnum.ShortNameLength > 0)
2405         {
2406
2407             UNICODE_STRING uniShortName;
2408
2409             pDirNode->NameInformation.ShortNameLength = pResultCB->DirEnum.ShortNameLength;
2410
2411             RtlCopyMemory( pDirNode->NameInformation.ShortName,
2412                            pResultCB->DirEnum.ShortName,
2413                            pDirNode->NameInformation.ShortNameLength);
2414
2415             //
2416             // Generate the short name index
2417             //
2418
2419             uniShortName.Length = pDirNode->NameInformation.ShortNameLength;
2420             uniShortName.Buffer = pDirNode->NameInformation.ShortName;
2421
2422             pDirNode->Type.Data.ShortNameTreeEntry.HashIndex = AFSGenerateCRC( &uniShortName,
2423                                                                                TRUE);
2424
2425             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2426                           AFS_TRACE_LEVEL_VERBOSE,
2427                           "AFSNotifyHardLink Initialized short name %wZ for DE %p for %wZ\n",
2428                           &uniShortName,
2429                           pDirNode,
2430                           &pDirNode->NameInformation.FileName);
2431         }
2432         else
2433         {
2434             //
2435             // No short name or short names are disabled
2436             //
2437
2438             pDirNode->Type.Data.ShortNameTreeEntry.HashIndex = 0;
2439         }
2440
2441         if ( !BooleanFlagOn( TargetParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY))
2442         {
2443
2444             //
2445             // Update the target parent data version
2446             //
2447
2448             TargetParentObjectInfo->DataVersion = pResultCB->TargetParentDataVersion;
2449
2450             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2451                           AFS_TRACE_LEVEL_VERBOSE,
2452                           "AFSNotifyHardLink entry %wZ ParentFID %08lX-%08lX-%08lX-%08lX Version %08lX:%08lX\n",
2453                           TargetName,
2454                           TargetParentObjectInfo->FileId.Cell,
2455                           TargetParentObjectInfo->FileId.Volume,
2456                           TargetParentObjectInfo->FileId.Vnode,
2457                           TargetParentObjectInfo->FileId.Unique,
2458                           TargetParentObjectInfo->DataVersion.QuadPart);
2459         }
2460
2461 try_exit:
2462
2463         if ( TargetDirectoryCB != NULL)
2464         {
2465
2466             lCount = InterlockedIncrement( &pDirNode->DirOpenReferenceCount);
2467
2468             AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
2469                           AFS_TRACE_LEVEL_VERBOSE,
2470                           "AFSNotifyHardLink Increment count on %wZ DE %p Cnt %d\n",
2471                           &pDirNode->NameInformation.FileName,
2472                           pDirNode,
2473                           lCount);
2474
2475             ASSERT( lCount >= 0);
2476
2477             *TargetDirectoryCB = pDirNode;
2478         }
2479
2480         if ( bReleaseTargetParentLock)
2481         {
2482
2483             AFSReleaseResource( TargetParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
2484         }
2485
2486         if ( bReleaseParentLock)
2487         {
2488
2489             AFSReleaseResource( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
2490         }
2491
2492         if( pHardLinkCB != NULL)
2493         {
2494
2495             AFSExFreePoolWithTag( pHardLinkCB, AFS_HARDLINK_REQUEST_TAG);
2496         }
2497     }
2498
2499     return ntStatus;
2500 }
2501
2502
2503
2504 NTSTATUS
2505 AFSNotifyRename( IN AFSObjectInfoCB *ObjectInfo,
2506                  IN GUID            *AuthGroup,
2507                  IN AFSObjectInfoCB *ParentObjectInfo,
2508                  IN AFSObjectInfoCB *TargetParentObjectInfo,
2509                  IN AFSDirectoryCB *DirectoryCB,
2510                  IN UNICODE_STRING *TargetName,
2511                  OUT AFSFileID  *UpdatedFID)
2512 {
2513
2514     NTSTATUS ntStatus = STATUS_SUCCESS;
2515     AFSFileRenameCB *pRenameCB = NULL;
2516     AFSFileRenameResultCB *pRenameResultCB = NULL;
2517     ULONG ulResultLen = 0;
2518     AFSDeviceExt *pDevExt = (AFSDeviceExt *) AFSRDRDeviceObject->DeviceExtension;
2519
2520     __Enter
2521     {
2522
2523         //
2524         // Init the control block for the request
2525         //
2526
2527         pRenameCB = (AFSFileRenameCB *)AFSExAllocatePoolWithTag( PagedPool,
2528                                                                  PAGE_SIZE,
2529                                                                  AFS_RENAME_REQUEST_TAG);
2530
2531         if( pRenameCB == NULL)
2532         {
2533
2534             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2535         }
2536
2537         RtlZeroMemory( pRenameCB,
2538                        PAGE_SIZE);
2539
2540         pRenameCB->SourceParentId = ParentObjectInfo->FileId;
2541
2542         pRenameCB->TargetParentId = TargetParentObjectInfo->FileId;
2543
2544         pRenameCB->TargetNameLength = TargetName->Length;
2545
2546         RtlCopyMemory( pRenameCB->TargetName,
2547                        TargetName->Buffer,
2548                        TargetName->Length);
2549
2550         //
2551         // Use the same buffer for the result control block
2552         //
2553
2554         pRenameResultCB = (AFSFileRenameResultCB *)pRenameCB;
2555
2556         ulResultLen = PAGE_SIZE;
2557
2558         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_RENAME_FILE,
2559                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
2560                                       AuthGroup,
2561                                       &DirectoryCB->NameInformation.FileName,
2562                                       &ObjectInfo->FileId,
2563                                       ObjectInfo->VolumeCB->VolumeInformation.Cell,
2564                                       ObjectInfo->VolumeCB->VolumeInformation.CellLength,
2565                                       pRenameCB,
2566                                       sizeof( AFSFileRenameCB) + TargetName->Length,
2567                                       pRenameResultCB,
2568                                       &ulResultLen);
2569
2570         if( ntStatus != STATUS_SUCCESS)
2571         {
2572
2573             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2574                           AFS_TRACE_LEVEL_ERROR,
2575                           "AFSNotifyRename failed FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
2576                           ObjectInfo->FileId.Cell,
2577                           ObjectInfo->FileId.Volume,
2578                           ObjectInfo->FileId.Vnode,
2579                           ObjectInfo->FileId.Unique,
2580                           ntStatus);
2581
2582             try_return( ntStatus);
2583         }
2584
2585         //
2586         // Update the information from the returned data
2587         //
2588
2589         AFSAcquireExcl( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
2590                         TRUE);
2591
2592         if ( ParentObjectInfo->DataVersion.QuadPart == pRenameResultCB->SourceParentDataVersion.QuadPart - 1)
2593         {
2594
2595             ParentObjectInfo->DataVersion = pRenameResultCB->SourceParentDataVersion;
2596         }
2597         else
2598         {
2599
2600             SetFlag( ParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
2601
2602             ParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
2603         }
2604
2605         if ( ParentObjectInfo != TargetParentObjectInfo)
2606         {
2607
2608             AFSAcquireExcl( TargetParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
2609                             TRUE);
2610
2611             if ( TargetParentObjectInfo->DataVersion.QuadPart == pRenameResultCB->TargetParentDataVersion.QuadPart - 1)
2612             {
2613
2614                 TargetParentObjectInfo->DataVersion = pRenameResultCB->TargetParentDataVersion;
2615             }
2616             else
2617             {
2618
2619                 SetFlag( TargetParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
2620
2621                 TargetParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
2622             }
2623         }
2624
2625         //
2626         // Move over the short name
2627         //
2628
2629         DirectoryCB->NameInformation.ShortNameLength = pRenameResultCB->DirEnum.ShortNameLength;
2630
2631         if( !BooleanFlagOn( pDevExt->DeviceFlags, AFS_DEVICE_FLAG_DISABLE_SHORTNAMES) &&
2632             DirectoryCB->NameInformation.ShortNameLength > 0)
2633         {
2634
2635             UNICODE_STRING uniShortName;
2636
2637             uniShortName.Length = DirectoryCB->NameInformation.ShortNameLength;
2638             uniShortName.MaximumLength = uniShortName.Length;
2639             uniShortName.Buffer = DirectoryCB->NameInformation.ShortName;
2640
2641             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2642                           AFS_TRACE_LEVEL_VERBOSE,
2643                           "AFSNotifyRename Update old short name %wZ for DE %p for %wZ\n",
2644                           &uniShortName,
2645                           DirectoryCB,
2646                           &DirectoryCB->NameInformation.FileName);
2647
2648             DirectoryCB->NameInformation.ShortNameLength = pRenameResultCB->DirEnum.ShortNameLength;
2649
2650             RtlCopyMemory( DirectoryCB->NameInformation.ShortName,
2651                            pRenameResultCB->DirEnum.ShortName,
2652                            DirectoryCB->NameInformation.ShortNameLength);
2653
2654             uniShortName.Length = DirectoryCB->NameInformation.ShortNameLength;
2655             uniShortName.MaximumLength = uniShortName.Length;
2656             uniShortName.Buffer = DirectoryCB->NameInformation.ShortName;
2657
2658             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2659                           AFS_TRACE_LEVEL_VERBOSE,
2660                           "AFSNotifyRename Initialized short name %wZ for DE %p for %wZ\n",
2661                           &uniShortName,
2662                           DirectoryCB,
2663                           &DirectoryCB->NameInformation.FileName);
2664         }
2665         else
2666         {
2667
2668             UNICODE_STRING uniShortName;
2669
2670             uniShortName.Length = DirectoryCB->NameInformation.ShortNameLength;
2671             uniShortName.MaximumLength = uniShortName.Length;
2672             uniShortName.Buffer = DirectoryCB->NameInformation.ShortName;
2673
2674             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2675                           AFS_TRACE_LEVEL_VERBOSE,
2676                           "AFSNotifyRename Removing old short name %wZ for DE %p for %wZ\n",
2677                           &uniShortName,
2678                           DirectoryCB,
2679                           &DirectoryCB->NameInformation.FileName);
2680
2681             DirectoryCB->NameInformation.ShortNameLength = 0;
2682
2683             DirectoryCB->Type.Data.ShortNameTreeEntry.HashIndex = 0;
2684         }
2685
2686         if ( ParentObjectInfo != TargetParentObjectInfo)
2687         {
2688
2689             AFSReleaseResource( TargetParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
2690         }
2691
2692         AFSReleaseResource( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
2693
2694         if( UpdatedFID != NULL)
2695         {
2696             *UpdatedFID = pRenameResultCB->DirEnum.FileId;
2697         }
2698
2699 try_exit:
2700
2701         if( pRenameCB != NULL)
2702         {
2703
2704             AFSExFreePoolWithTag( pRenameCB, AFS_RENAME_REQUEST_TAG);
2705         }
2706     }
2707
2708     return ntStatus;
2709 }
2710
2711 NTSTATUS
2712 AFSEvaluateTargetByID( IN AFSObjectInfoCB *ObjectInfo,
2713                        IN GUID *AuthGroup,
2714                        IN BOOLEAN FastCall,
2715                        OUT AFSDirEnumEntry **DirEnumEntry)
2716 {
2717
2718     NTSTATUS ntStatus = STATUS_SUCCESS;
2719     AFSEvalTargetCB stTargetID;
2720     ULONG ulResultBufferLength;
2721     AFSFileEvalResultCB *pEvalResultCB = NULL;
2722     AFSDirEnumEntry *pDirEnumCB = NULL;
2723     ULONG ulRequestFlags = AFS_REQUEST_FLAG_SYNCHRONOUS;
2724     AFSObjectInfoCB *pParentObjectInfo = NULL;
2725
2726     __Enter
2727     {
2728
2729         RtlZeroMemory( &stTargetID,
2730                        sizeof( AFSEvalTargetCB));
2731
2732         if ( BooleanFlagOn( ObjectInfo->Flags, AFS_OBJECT_FLAGS_PARENT_FID))
2733         {
2734
2735             pParentObjectInfo = AFSFindObjectInfo( ObjectInfo->VolumeCB,
2736                                                    &ObjectInfo->ParentFileId);
2737
2738             stTargetID.ParentId = ObjectInfo->ParentFileId;
2739         }
2740
2741         //
2742         // Allocate our response buffer
2743         //
2744
2745         pEvalResultCB = (AFSFileEvalResultCB *)AFSExAllocatePoolWithTag( PagedPool,
2746                                                                          PAGE_SIZE,
2747                                                                          AFS_GENERIC_MEMORY_30_TAG);
2748
2749         if( pEvalResultCB == NULL)
2750         {
2751
2752             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2753         }
2754
2755         //
2756         // Call to the service to evaluate the fid
2757         //
2758
2759         ulResultBufferLength = PAGE_SIZE;
2760
2761         if( FastCall)
2762         {
2763
2764             ulRequestFlags |= AFS_REQUEST_FLAG_FAST_REQUEST;
2765         }
2766
2767         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_EVAL_TARGET_BY_ID,
2768                                       ulRequestFlags,
2769                                       AuthGroup,
2770                                       NULL,
2771                                       &ObjectInfo->FileId,
2772                                       ObjectInfo->VolumeCB->VolumeInformation.Cell,
2773                                       ObjectInfo->VolumeCB->VolumeInformation.CellLength,
2774                                       &stTargetID,
2775                                       sizeof( AFSEvalTargetCB),
2776                                       pEvalResultCB,
2777                                       &ulResultBufferLength);
2778
2779         if( ntStatus != STATUS_SUCCESS)
2780         {
2781
2782             //
2783             // If we received back a STATUS_INVALID_HANDLE then mark the parent as requiring
2784             // verification
2785             //
2786
2787             if( ntStatus == STATUS_OBJECT_PATH_INVALID)
2788             {
2789
2790                 if( pParentObjectInfo != NULL)
2791                 {
2792
2793                     AFSAcquireExcl( pParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
2794                                     TRUE);
2795
2796                     SetFlag( pParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
2797
2798                     pParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
2799
2800                     AFSReleaseResource( pParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
2801                 }
2802             }
2803
2804             try_return( ntStatus);
2805         }
2806
2807         //
2808         // A BSOD can occur if the pEvalResultCB->FileType is FILE but the
2809         // ObjectInfo->FileType is something else.  The same is true for
2810         // pDirEnumEntry->FileType is DIRECTORY.  Perform a sanity check
2811         // to ensure consistency.  An inconsistent pDirEnumEntry can be
2812         // produced as a result of invalid status info received from a file
2813         // server.  If the types are inconsistent or if the type does not
2814         // match the implied type derived from the vnode (odd values are
2815         // directories and even values are other types), prevent the request
2816         // from completing successfully.  This may prevent access to the file or
2817         // directory but will prevent a BSOD.
2818         //
2819
2820         if ( !AFSIsEqualFID( &ObjectInfo->FileId,
2821                              &pEvalResultCB->DirEnum.FileId))
2822         {
2823
2824             try_return( ntStatus = STATUS_UNSUCCESSFUL);
2825         }
2826
2827         switch ( pEvalResultCB->DirEnum.FileType)
2828         {
2829
2830         case AFS_FILE_TYPE_DIRECTORY:
2831             if ( (pEvalResultCB->DirEnum.FileId.Vnode & 0x1) != 0x1)
2832             {
2833
2834                 try_return( ntStatus = STATUS_UNSUCCESSFUL);
2835             }
2836
2837             if ( ObjectInfo->FileType != AFS_FILE_TYPE_UNKNOWN &&
2838                  ObjectInfo->FileType != AFS_FILE_TYPE_DIRECTORY)
2839             {
2840
2841                 try_return( ntStatus = STATUS_UNSUCCESSFUL);
2842             }
2843
2844             break;
2845
2846         case AFS_FILE_TYPE_FILE:
2847             if ( (pEvalResultCB->DirEnum.FileId.Vnode & 0x1) != 0x0)
2848             {
2849
2850                 try_return( ntStatus = STATUS_UNSUCCESSFUL);
2851             }
2852
2853             if ( ObjectInfo->FileType != AFS_FILE_TYPE_UNKNOWN &&
2854                  ObjectInfo->FileType != AFS_FILE_TYPE_FILE)
2855             {
2856
2857                 try_return( ntStatus = STATUS_UNSUCCESSFUL);
2858             }
2859
2860             break;
2861         }
2862
2863         //
2864         // Validate the parent data version
2865         //
2866
2867         if ( pParentObjectInfo != NULL)
2868         {
2869
2870             AFSAcquireExcl( pParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
2871                             TRUE);
2872
2873             if ( pParentObjectInfo->DataVersion.QuadPart != pEvalResultCB->ParentDataVersion.QuadPart)
2874             {
2875
2876                 SetFlag( pParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
2877
2878                 pParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
2879             }
2880
2881             AFSReleaseResource( pParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
2882         }
2883
2884         //
2885         // Pass back the dir enum entry
2886         //
2887
2888         if( DirEnumEntry != NULL)
2889         {
2890
2891             pDirEnumCB = (AFSDirEnumEntry *)AFSExAllocatePoolWithTag( PagedPool,
2892                                                                       PAGE_SIZE,
2893                                                                       AFS_GENERIC_MEMORY_2_TAG);
2894
2895             if( pDirEnumCB == NULL)
2896             {
2897
2898                 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2899             }
2900
2901             RtlCopyMemory( pDirEnumCB, &pEvalResultCB->DirEnum,
2902                            ulResultBufferLength - sizeof( AFSFileEvalResultCB) + sizeof( AFSDirEnumEntry));
2903
2904             *DirEnumEntry = pDirEnumCB;
2905         }
2906
2907 try_exit:
2908
2909         if ( pParentObjectInfo != NULL)
2910         {
2911
2912             AFSReleaseObjectInfo( &pParentObjectInfo);
2913         }
2914
2915         if( pEvalResultCB != NULL)
2916         {
2917
2918             AFSExFreePoolWithTag( pEvalResultCB, AFS_GENERIC_MEMORY_30_TAG);
2919         }
2920
2921         if( !NT_SUCCESS( ntStatus))
2922         {
2923
2924             if( pDirEnumCB != NULL)
2925             {
2926
2927                 AFSExFreePoolWithTag( pDirEnumCB, AFS_GENERIC_MEMORY_2_TAG);
2928             }
2929
2930             *DirEnumEntry = NULL;
2931         }
2932     }
2933
2934     return ntStatus;
2935 }
2936
2937 NTSTATUS
2938 AFSEvaluateTargetByName( IN GUID *AuthGroup,
2939                          IN AFSObjectInfoCB *ParentObjectInfo,
2940                          IN PUNICODE_STRING SourceName,
2941                          OUT AFSDirEnumEntry **DirEnumEntry)
2942 {
2943
2944     NTSTATUS ntStatus = STATUS_SUCCESS;
2945     AFSEvalTargetCB stTargetID;
2946     ULONG ulResultBufferLength;
2947     AFSFileEvalResultCB *pEvalResultCB = NULL;
2948     AFSDirEnumEntry *pDirEnumCB = NULL;
2949
2950     __Enter
2951     {
2952
2953         stTargetID.ParentId = ParentObjectInfo->FileId;
2954
2955         //
2956         // Allocate our response buffer
2957         //
2958
2959         pEvalResultCB = (AFSFileEvalResultCB *)AFSExAllocatePoolWithTag( PagedPool,
2960                                                                          PAGE_SIZE,
2961                                                                          AFS_GENERIC_MEMORY_31_TAG);
2962
2963         if( pEvalResultCB == NULL)
2964         {
2965
2966             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2967         }
2968
2969         //
2970         // Call to the service to evaluate the fid
2971         //
2972
2973         ulResultBufferLength = PAGE_SIZE;
2974
2975         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_EVAL_TARGET_BY_NAME,
2976                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
2977                                       AuthGroup,
2978                                       SourceName,
2979                                       NULL,
2980                                       ParentObjectInfo->VolumeCB->VolumeInformation.Cell,
2981                                       ParentObjectInfo->VolumeCB->VolumeInformation.CellLength,
2982                                       &stTargetID,
2983                                       sizeof( AFSEvalTargetCB),
2984                                       pEvalResultCB,
2985                                       &ulResultBufferLength);
2986
2987         if( ntStatus != STATUS_SUCCESS)
2988         {
2989
2990             if( ntStatus == STATUS_OBJECT_PATH_INVALID)
2991             {
2992
2993                 AFSAcquireExcl( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
2994                                 TRUE);
2995
2996                 SetFlag( ParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
2997
2998                 ParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
2999
3000                 AFSReleaseResource( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
3001             }
3002
3003             try_return( ntStatus);
3004         }
3005
3006         //
3007         // Validate the parent data version
3008         //
3009
3010         AFSAcquireExcl( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
3011                         TRUE);
3012
3013         if ( ParentObjectInfo->DataVersion.QuadPart != pEvalResultCB->ParentDataVersion.QuadPart)
3014         {
3015
3016             SetFlag( ParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
3017
3018             ParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
3019         }
3020
3021         AFSReleaseResource( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
3022
3023         //
3024         // Pass back the dir enum entry
3025         //
3026
3027         if( DirEnumEntry != NULL)
3028         {
3029
3030             pDirEnumCB = (AFSDirEnumEntry *)AFSExAllocatePoolWithTag( PagedPool,
3031                                                                       PAGE_SIZE,
3032                                                                       AFS_GENERIC_MEMORY_3_TAG);
3033
3034             if( pDirEnumCB == NULL)
3035             {
3036
3037                 try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
3038             }
3039
3040             RtlCopyMemory( pDirEnumCB, &pEvalResultCB->DirEnum,
3041                            ulResultBufferLength - sizeof( AFSFileEvalResultCB) + sizeof( AFSDirEnumEntry));
3042
3043             *DirEnumEntry = pDirEnumCB;
3044         }
3045
3046 try_exit:
3047
3048         if( pEvalResultCB != NULL)
3049         {
3050
3051             AFSExFreePoolWithTag( pEvalResultCB, AFS_GENERIC_MEMORY_31_TAG);
3052         }
3053
3054         if( !NT_SUCCESS( ntStatus))
3055         {
3056
3057             if( pDirEnumCB != NULL)
3058             {
3059
3060                 AFSExFreePoolWithTag( pDirEnumCB, AFS_GENERIC_MEMORY_3_TAG);
3061             }
3062
3063             *DirEnumEntry = NULL;
3064         }
3065     }
3066
3067     return ntStatus;
3068 }
3069
3070 NTSTATUS
3071 AFSRetrieveVolumeInformation( IN GUID *AuthGroup,
3072                               IN AFSFileID *FileID,
3073                               OUT AFSVolumeInfoCB *VolumeInformation)
3074 {
3075
3076     NTSTATUS ntStatus = STATUS_SUCCESS;
3077     ULONG ulResultLen = 0;
3078
3079     __Enter
3080     {
3081
3082         ulResultLen = sizeof( AFSVolumeInfoCB);
3083
3084         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_GET_VOLUME_INFO,
3085                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
3086                                       AuthGroup,
3087                                       NULL,
3088                                       FileID,
3089                                       NULL,
3090                                       0,
3091                                       NULL,
3092                                       0,
3093                                       VolumeInformation,
3094                                       &ulResultLen);
3095
3096         if( ntStatus != STATUS_SUCCESS)
3097         {
3098
3099             try_return( ntStatus);
3100         }
3101
3102 try_exit:
3103
3104         NOTHING;
3105     }
3106
3107     return ntStatus;
3108 }
3109
3110 NTSTATUS
3111 AFSRetrieveVolumeSizeInformation( IN GUID *AuthGroup,
3112                                   IN AFSFileID *FileID,
3113                                   OUT AFSVolumeSizeInfoCB *VolumeSizeInformation)
3114 {
3115
3116     NTSTATUS ntStatus = STATUS_SUCCESS;
3117     ULONG ulResultLen = 0;
3118
3119     __Enter
3120     {
3121
3122         ulResultLen = sizeof( AFSVolumeSizeInfoCB);
3123
3124         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_GET_VOLUME_SIZE_INFO,
3125                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
3126                                       AuthGroup,
3127                                       NULL,
3128                                       FileID,
3129                                       NULL,
3130                                       0,
3131                                       NULL,
3132                                       0,
3133                                       VolumeSizeInformation,
3134                                       &ulResultLen);
3135
3136         if( ntStatus != STATUS_SUCCESS)
3137         {
3138
3139             try_return( ntStatus);
3140         }
3141
3142 try_exit:
3143
3144         NOTHING;
3145     }
3146
3147     return ntStatus;
3148 }
3149
3150 NTSTATUS
3151 AFSNotifyPipeTransceive( IN AFSCcb *Ccb,
3152                          IN ULONG InputLength,
3153                          IN ULONG OutputLength,
3154                          IN void *InputDataBuffer,
3155                          OUT void *OutputDataBuffer,
3156                          OUT ULONG *BytesReturned)
3157 {
3158
3159     NTSTATUS ntStatus = STATUS_SUCCESS;
3160     ULONG ulResultLen = 0;
3161     MDL *pInputMdl = NULL, *pOutputMdl = NULL;
3162     void *pInputSystemBuffer = NULL, *pOutputSystemBuffer = NULL;
3163     AFSPipeIORequestCB *pIoRequest = NULL;
3164
3165     __Enter
3166     {
3167
3168         //
3169         // Map the user buffer to a system address
3170         //
3171
3172         pInputSystemBuffer = AFSLockUserBuffer( InputDataBuffer,
3173                                                 InputLength,
3174                                                 &pInputMdl);
3175
3176         if( pInputSystemBuffer == NULL)
3177         {
3178
3179             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
3180         }
3181
3182         pIoRequest = (AFSPipeIORequestCB *)AFSExAllocatePoolWithTag( PagedPool,
3183                                                                      sizeof( AFSPipeIORequestCB) +
3184                                                                                 InputLength,
3185                                                                      AFS_GENERIC_MEMORY_4_TAG);
3186
3187         if( pIoRequest == NULL)
3188         {
3189
3190             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
3191         }
3192
3193         RtlZeroMemory( pIoRequest,
3194                        sizeof( AFSPipeIORequestCB) + InputLength);
3195
3196         pIoRequest->RequestId = Ccb->RequestID;
3197
3198         pIoRequest->RootId = Ccb->DirectoryCB->ObjectInformation->VolumeCB->ObjectInformation.FileId;
3199
3200         pIoRequest->BufferLength = InputLength;
3201
3202         RtlCopyMemory( (void *)((char *)pIoRequest + sizeof( AFSPipeIORequestCB)),
3203                        pInputSystemBuffer,
3204                        InputLength);
3205
3206         pOutputSystemBuffer = AFSLockUserBuffer( OutputDataBuffer,
3207                                                  OutputLength,
3208                                                  &pOutputMdl);
3209
3210         if( pOutputSystemBuffer == NULL)
3211         {
3212
3213             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
3214         }
3215
3216         //
3217         // Send the call to the service
3218         //
3219
3220         ulResultLen = OutputLength;
3221
3222         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_PIPE_TRANSCEIVE,
3223                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
3224                                       &Ccb->AuthGroup,
3225                                       &Ccb->DirectoryCB->NameInformation.FileName,
3226                                       NULL,
3227                                       NULL,
3228                                       0,
3229                                       pIoRequest,
3230                                       sizeof( AFSPipeIORequestCB) + InputLength,
3231                                       pOutputSystemBuffer,
3232                                       &ulResultLen);
3233
3234         if( ntStatus != STATUS_SUCCESS &&
3235             ntStatus != STATUS_BUFFER_OVERFLOW)
3236         {
3237
3238             if( NT_SUCCESS( ntStatus))
3239             {
3240
3241                 ntStatus = STATUS_DEVICE_NOT_READY;
3242             }
3243
3244             try_return( ntStatus);
3245         }
3246
3247         //
3248         // Return the bytes processed
3249         //
3250
3251         *BytesReturned = ulResultLen;
3252
3253 try_exit:
3254
3255         if( pInputMdl != NULL)
3256         {
3257
3258             MmUnlockPages( pInputMdl);
3259
3260             IoFreeMdl( pInputMdl);
3261         }
3262
3263         if( pOutputMdl != NULL)
3264         {
3265
3266             MmUnlockPages( pOutputMdl);
3267
3268             IoFreeMdl( pOutputMdl);
3269         }
3270
3271         if( pIoRequest != NULL)
3272         {
3273
3274             AFSExFreePoolWithTag( pIoRequest, AFS_GENERIC_MEMORY_4_TAG);
3275         }
3276     }
3277
3278     return ntStatus;
3279 }
3280
3281 NTSTATUS
3282 AFSNotifySetPipeInfo( IN AFSCcb *Ccb,
3283                       IN ULONG InformationClass,
3284                       IN ULONG InputLength,
3285                       IN void *DataBuffer)
3286 {
3287
3288     NTSTATUS ntStatus = STATUS_SUCCESS;
3289     AFSPipeInfoRequestCB *pInfoRequest = NULL;
3290
3291     __Enter
3292     {
3293
3294         pInfoRequest = (AFSPipeInfoRequestCB *)AFSExAllocatePoolWithTag( PagedPool,
3295                                                                          sizeof( AFSPipeInfoRequestCB) +
3296                                                                                 InputLength,
3297                                                                          AFS_GENERIC_MEMORY_5_TAG);
3298
3299         if( pInfoRequest == NULL)
3300         {
3301
3302             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
3303         }
3304
3305         RtlZeroMemory( pInfoRequest,
3306                        sizeof( AFSPipeInfoRequestCB) + InputLength);
3307
3308         pInfoRequest->RequestId = Ccb->RequestID;
3309
3310         pInfoRequest->RootId = Ccb->DirectoryCB->ObjectInformation->VolumeCB->ObjectInformation.FileId;
3311
3312         pInfoRequest->BufferLength = InputLength;
3313
3314         pInfoRequest->InformationClass = InformationClass;
3315
3316         RtlCopyMemory( (void *)((char *)pInfoRequest + sizeof( AFSPipeInfoRequestCB)),
3317                        DataBuffer,
3318                        InputLength);
3319
3320         //
3321         // Send the call to the service
3322         //
3323
3324         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_PIPE_SET_INFO,
3325                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
3326                                       &Ccb->AuthGroup,
3327                                       &Ccb->DirectoryCB->NameInformation.FileName,
3328                                       NULL,
3329                                       NULL,
3330                                       0,
3331                                       pInfoRequest,
3332                                       sizeof( AFSPipeInfoRequestCB) + InputLength,
3333                                       NULL,
3334                                       NULL);
3335
3336         if( ntStatus != STATUS_SUCCESS)
3337         {
3338
3339             if( NT_SUCCESS( ntStatus))
3340             {
3341
3342                 ntStatus = STATUS_DEVICE_NOT_READY;
3343             }
3344
3345             try_return( ntStatus);
3346         }
3347
3348 try_exit:
3349
3350         if( pInfoRequest != NULL)
3351         {
3352
3353             AFSExFreePoolWithTag( pInfoRequest, AFS_GENERIC_MEMORY_5_TAG);
3354         }
3355     }
3356
3357     return ntStatus;
3358 }
3359
3360 NTSTATUS
3361 AFSNotifyQueryPipeInfo( IN AFSCcb *Ccb,
3362                         IN ULONG InformationClass,
3363                         IN ULONG OutputLength,
3364                         IN void *DataBuffer,
3365                         OUT ULONG *BytesReturned)
3366 {
3367
3368     NTSTATUS ntStatus = STATUS_SUCCESS;
3369     AFSPipeInfoRequestCB stInfoRequest;
3370     ULONG ulBytesProcessed = 0;
3371
3372     __Enter
3373     {
3374
3375         RtlZeroMemory( &stInfoRequest,
3376                        sizeof( AFSPipeInfoRequestCB));
3377
3378         stInfoRequest.RequestId = Ccb->RequestID;
3379
3380         stInfoRequest.RootId = Ccb->DirectoryCB->ObjectInformation->VolumeCB->ObjectInformation.FileId;
3381
3382         stInfoRequest.BufferLength = OutputLength;
3383
3384         stInfoRequest.InformationClass = InformationClass;
3385
3386         ulBytesProcessed = OutputLength;
3387
3388         //
3389         // Send the call to the service
3390         //
3391
3392         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_PIPE_QUERY_INFO,
3393                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
3394                                       &Ccb->AuthGroup,
3395                                       &Ccb->DirectoryCB->NameInformation.FileName,
3396                                       NULL,
3397                                       NULL,
3398                                       0,
3399                                       &stInfoRequest,
3400                                       sizeof( AFSPipeInfoRequestCB),
3401                                       DataBuffer,
3402                                       &ulBytesProcessed);
3403
3404         if( ntStatus != STATUS_SUCCESS)
3405         {
3406
3407             if( NT_SUCCESS( ntStatus))
3408             {
3409
3410                 ntStatus = STATUS_DEVICE_NOT_READY;
3411             }
3412
3413             try_return( ntStatus);
3414         }
3415
3416         *BytesReturned = ulBytesProcessed;
3417
3418 try_exit:
3419
3420         NOTHING;
3421     }
3422
3423     return ntStatus;
3424 }
3425
3426 NTSTATUS
3427 AFSReleaseFid( IN AFSFileID *FileId)
3428 {
3429
3430     NTSTATUS ntStatus = STATUS_SUCCESS;
3431
3432     __Enter
3433     {
3434
3435         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_RELEASE_FID,
3436                                       0,
3437                                       NULL,
3438                                       NULL,
3439                                       FileId,
3440                                       NULL,
3441                                       0,
3442                                       NULL,
3443                                       0,
3444                                       NULL,
3445                                       NULL);
3446     }
3447
3448     return ntStatus;
3449 }
3450
3451 BOOLEAN
3452 AFSIsExtentRequestQueued( IN AFSFileID *FileID,
3453                           IN LARGE_INTEGER *ExtentOffset,
3454                           IN ULONG Length)
3455 {
3456
3457     BOOLEAN bRequestQueued = FALSE;
3458     AFSDeviceExt    *pControlDevExt = (AFSDeviceExt *)AFSControlDeviceObject->DeviceExtension;
3459     AFSCommSrvcCB   *pCommSrvc = NULL;
3460     AFSPoolEntry    *pPoolEntry = NULL;
3461     AFSRequestExtentsCB *pRequestExtents = NULL;
3462
3463     __Enter
3464     {
3465
3466
3467         pCommSrvc = &pControlDevExt->Specific.Control.CommServiceCB;
3468
3469         AFSAcquireShared( &pCommSrvc->IrpPoolLock,
3470                           TRUE);
3471
3472         pPoolEntry = pCommSrvc->RequestPoolHead;
3473
3474         while( pPoolEntry != NULL)
3475         {
3476
3477             if( pPoolEntry->RequestType == AFS_REQUEST_TYPE_REQUEST_FILE_EXTENTS)
3478             {
3479
3480                 if( AFSIsEqualFID( &pPoolEntry->FileId, FileID))
3481                 {
3482
3483                     pRequestExtents = (AFSRequestExtentsCB *)pPoolEntry->Data;
3484
3485                     if( pRequestExtents->ByteOffset.QuadPart == ExtentOffset->QuadPart &&
3486                         pRequestExtents->Length == Length)
3487                     {
3488
3489                         bRequestQueued = TRUE;
3490                     }
3491                 }
3492             }
3493
3494             pPoolEntry = pPoolEntry->fLink;
3495         }
3496
3497         AFSReleaseResource( &pCommSrvc->IrpPoolLock);
3498     }
3499
3500     return bRequestQueued;
3501 }