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
  60     __Enter
  61     {
  62
  63         uniGUID.Length = 0;
  64         uniGUID.MaximumLength = 0;
  65         uniGUID.Buffer = NULL;
  66
  67         if( AuthGroup != NULL)
  68         {
  69             RtlStringFromGUID( *AuthGroup,
  70                                &uniGUID);
  71         }
  72
  73         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
  74                       AFS_TRACE_LEVEL_VERBOSE,
  75                       "AFSEnumerateDirectory Enumerating FID %08lX-%08lX-%08lX-%08lX AuthGroup %wZ\n",
  76                       ObjectInfoCB->FileId.Cell,
  77                       ObjectInfoCB->FileId.Volume,
  78                       ObjectInfoCB->FileId.Vnode,
  79                       ObjectInfoCB->FileId.Unique,
  80                       &uniGUID);
  81
  82         if( AuthGroup != NULL)
  83         {
  84             RtlFreeUnicodeString( &uniGUID);
  85         }
  86
  87         //
  88         // Initialize the directory enumeration buffer for the directory
  89         //
  90
  91         pBuffer = AFSExAllocatePoolWithTag( PagedPool,
  92                                             AFS_DIR_ENUM_BUFFER_LEN,
  93                                             AFS_DIR_BUFFER_TAG);
  94
  95         if( pBuffer == NULL)
  96         {
  97
  98             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
  99         }
 100
 101         RtlZeroMemory( pBuffer,
 102                        AFS_DIR_ENUM_BUFFER_LEN);
 103
 104         ulResultLen = AFS_DIR_ENUM_BUFFER_LEN;
 105
 106         //
 107         // Use the payload buffer for information we will pass to the service
 108         //
 109
 110         pDirQueryCB = (AFSDirQueryCB *)pBuffer;
 111
 112         pDirQueryCB->EnumHandle = 0;
 113
 114         if( FastQuery)
 115         {
 116
 117             ulRequestFlags |= AFS_REQUEST_FLAG_FAST_REQUEST;
 118         }
 119
 120         //
 121         // Loop on the information
 122         //
 123
 124         while( TRUE)
 125         {
 126
 127             //
 128             // Go and retrieve the directory contents
 129             //
 130
 131             ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_DIR_ENUM,
 132                                           ulRequestFlags,
 133                                           AuthGroup,
 134                                           NULL,
 135                                           &ObjectInfoCB->FileId,
 136                                           (void *)pDirQueryCB,
 137                                           sizeof( AFSDirQueryCB),
 138                                           pBuffer,
 139                                           &ulResultLen);
 140
 141             if( ntStatus != STATUS_SUCCESS ||
 142                 ulResultLen == 0)
 143             {
 144
 145                 if( ntStatus == STATUS_NO_MORE_FILES ||
 146                     ntStatus == STATUS_NO_MORE_ENTRIES)
 147                 {
 148
 149                     ntStatus = STATUS_SUCCESS;
 150                 }
 151                 else
 152                 {
 153
 154                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 155                                   AFS_TRACE_LEVEL_ERROR,
 156                                   "AFSEnumerateDirectory Failed to enumerate directory Status %08lX\n",
 157                                   ntStatus);
 158                 }
 159
 160                 break;
 161             }
 162
 163             pDirEnumResponse = (AFSDirEnumResp *)pBuffer;
 164
 165             pCurrentDirEntry = (AFSDirEnumEntry *)pDirEnumResponse->Entry;
 166
 167             //
 168             // Remove the leading header from the processed length
 169             //
 170
 171             ulResultLen -= FIELD_OFFSET( AFSDirEnumResp, Entry);
 172
 173             while( ulResultLen > 0)
 174             {
 175
 176                 uniDirName.Length = (USHORT)pCurrentDirEntry->FileNameLength;
 177
 178                 uniDirName.MaximumLength = uniDirName.Length;
 179
 180                 uniDirName.Buffer = (WCHAR *)((char *)pCurrentDirEntry + pCurrentDirEntry->FileNameOffset);
 181
 182                 uniTargetName.Length = (USHORT)pCurrentDirEntry->TargetNameLength;
 183
 184                 uniTargetName.MaximumLength = uniTargetName.Length;
 185
 186                 uniTargetName.Buffer = (WCHAR *)((char *)pCurrentDirEntry + pCurrentDirEntry->TargetNameOffset);
 187
 188                 //
 189                 // Be sure we don't have this entry in the case sensitive tree
 190                 //
 191
 192                 ulCRC = AFSGenerateCRC( &uniDirName,
 193                                         FALSE);
 194
 195                 AFSLocateCaseSensitiveDirEntry( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
 196                                                 ulCRC,
 197                                                 &pDirNode);
 198
 199                 if( pDirNode != NULL)
 200                 {
 201
 202                     //
 203                     // Duplicate entry, skip it
 204                     //
 205
 206                     ulEntryLength = QuadAlign( sizeof( AFSDirEnumEntry) +
 207                                                     uniDirName.Length +
 208                                                     uniTargetName.Length);
 209
 210                     pCurrentDirEntry = (AFSDirEnumEntry *)((char *)pCurrentDirEntry + ulEntryLength);
 211
 212                     if( ulResultLen >= ulEntryLength)
 213                     {
 214                         ulResultLen -= ulEntryLength;
 215                     }
 216                     else
 217                     {
 218                         ulResultLen = 0;
 219                     }
 220
 221                     continue;
 222                 }
 223
 224                 pDirNode = AFSInitDirEntry( ObjectInfoCB,
 225                                             &uniDirName,
 226                                             &uniTargetName,
 227                                             pCurrentDirEntry,
 228                                             (ULONG)InterlockedIncrement( &ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.ContentIndex));
 229
 230                 if( pDirNode == NULL)
 231                 {
 232
 233                     ntStatus = STATUS_INSUFFICIENT_RESOURCES;
 234
 235                     break;
 236                 }
 237
 238                 //
 239                 // Set up the entry length
 240                 //
 241
 242                 ulEntryLength = QuadAlign( sizeof( AFSDirEnumEntry) +
 243                                                     pCurrentDirEntry->FileNameLength +
 244                                                     pCurrentDirEntry->TargetNameLength);
 245
 246                 //
 247                 // Init the short name if we have one
 248                 //
 249
 250                 if( pCurrentDirEntry->ShortNameLength > 0)
 251                 {
 252
 253                     UNICODE_STRING uniShortName;
 254
 255                     pDirNode->NameInformation.ShortNameLength = pCurrentDirEntry->ShortNameLength;
 256
 257                     RtlCopyMemory( pDirNode->NameInformation.ShortName,
 258                                    pCurrentDirEntry->ShortName,
 259                                    pDirNode->NameInformation.ShortNameLength);
 260
 261                     //
 262                     // Generate the short name index
 263                     //
 264
 265                     uniShortName.Length = pDirNode->NameInformation.ShortNameLength;
 266                     uniShortName.MaximumLength = uniShortName.Length;
 267                     uniShortName.Buffer = pDirNode->NameInformation.ShortName;
 268
 269                     if( !RtlIsNameLegalDOS8Dot3( &pDirNode->NameInformation.FileName,
 270                                                  NULL,
 271                                                  NULL))
 272                     {
 273
 274                         pDirNode->Type.Data.ShortNameTreeEntry.HashIndex = AFSGenerateCRC( &uniShortName,
 275                                                                                            TRUE);
 276
 277                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 278                                       AFS_TRACE_LEVEL_VERBOSE,
 279                                       "AFSEnumerateDirectory Initialized short name %wZ for DE %p for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
 280                                       &uniShortName,
 281                                       pDirNode,
 282                                       &pDirNode->NameInformation.FileName,
 283                                       pCurrentDirEntry->FileId.Cell,
 284                                       pCurrentDirEntry->FileId.Volume,
 285                                       pCurrentDirEntry->FileId.Vnode,
 286                                       pCurrentDirEntry->FileId.Unique);
 287                     }
 288                     else
 289                     {
 290                         pDirNode->NameInformation.ShortNameLength = 0;
 291
 292                         RtlZeroMemory( pDirNode->NameInformation.ShortName,
 293                                        (12 * sizeof( WCHAR)));
 294                     }
 295                 }
 296
 297                 //
 298                 // Insert the node into the name tree
 299                 //
 300
 301                 ASSERT( ExIsResourceAcquiredExclusiveLite( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.TreeLock));
 302
 303                 if( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead == NULL)
 304                 {
 305
 306                     ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead = pDirNode;
 307
 308                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 309                                   AFS_TRACE_LEVEL_VERBOSE,
 310                                   "AFSEnumerateDirectory Insert DE %p to head of case sensitive tree for %wZ\n",
 311                                   pDirNode,
 312                                   &pDirNode->NameInformation.FileName);
 313                 }
 314                 else
 315                 {
 316
 317                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 318                                   AFS_TRACE_LEVEL_VERBOSE,
 319                                   "AFSEnumerateDirectory Insert DE %p to case sensitive tree for %wZ\n",
 320                                   pDirNode,
 321                                   &pDirNode->NameInformation.FileName);
 322
 323                     if( !NT_SUCCESS( AFSInsertCaseSensitiveDirEntry( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
 324                                                                      pDirNode)))
 325                     {
 326
 327                         //
 328                         // Delete this dir entry and continue on
 329                         //
 330
 331                         AFSDeleteDirEntry( ObjectInfoCB,
 332                                            pDirNode);
 333
 334                         pCurrentDirEntry = (AFSDirEnumEntry *)((char *)pCurrentDirEntry + ulEntryLength);
 335
 336                         if( ulResultLen >= ulEntryLength)
 337                         {
 338                             ulResultLen -= ulEntryLength;
 339                         }
 340                         else
 341                         {
 342                             ulResultLen = 0;
 343                         }
 344
 345                         continue;
 346                     }
 347                 }
 348
 349                 ClearFlag( pDirNode->Flags, AFS_DIR_ENTRY_NOT_IN_PARENT_TREE);
 350
 351                 if( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead == NULL)
 352                 {
 353
 354                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 355                                   AFS_TRACE_LEVEL_VERBOSE,
 356                                   "AFSEnumerateDirectory Insert DE %p to head of case insensitive tree for %wZ\n",
 357                                   pDirNode,
 358                                   &pDirNode->NameInformation.FileName);
 359
 360                     ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead = pDirNode;
 361
 362                     SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_CASE_INSENSTIVE_LIST_HEAD);
 363                 }
 364                 else
 365                 {
 366
 367                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 368                                   AFS_TRACE_LEVEL_VERBOSE,
 369                                   "AFSEnumerateDirectory Insert DE %p to case insensitive tree for %wZ\n",
 370                                   pDirNode,
 371                                   &pDirNode->NameInformation.FileName);
 372
 373                     AFSInsertCaseInsensitiveDirEntry( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead,
 374                                                       pDirNode);
 375                 }
 376
 377                 if( ObjectInfoCB->Specific.Directory.DirectoryNodeListHead == NULL)
 378                 {
 379
 380                     ObjectInfoCB->Specific.Directory.DirectoryNodeListHead = pDirNode;
 381                 }
 382                 else
 383                 {
 384
 385                     ObjectInfoCB->Specific.Directory.DirectoryNodeListTail->ListEntry.fLink = pDirNode;
 386
 387                     pDirNode->ListEntry.bLink = ObjectInfoCB->Specific.Directory.DirectoryNodeListTail;
 388                 }
 389
 390                 ObjectInfoCB->Specific.Directory.DirectoryNodeListTail = pDirNode;
 391
 392                 SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_INSERTED_ENUM_LIST);
 393
 394                 InterlockedIncrement( &ObjectInfoCB->Specific.Directory.DirectoryNodeCount);
 395
 396                 AFSDbgLogMsg( AFS_SUBSYSTEM_DIR_NODE_COUNT,
 397                               AFS_TRACE_LEVEL_VERBOSE,
 398                               "AFSEnumerateDirectory Adding entry %wZ Inc Count %d to parent FID %08lX-%08lX-%08lX-%08lX\n",
 399                               &pDirNode->NameInformation.FileName,
 400                               ObjectInfoCB->Specific.Directory.DirectoryNodeCount,
 401                               ObjectInfoCB->FileId.Cell,
 402                               ObjectInfoCB->FileId.Volume,
 403                               ObjectInfoCB->FileId.Vnode,
 404                               ObjectInfoCB->FileId.Unique);
 405
 406                 if( pDirNode->Type.Data.ShortNameTreeEntry.HashIndex != 0)
 407                 {
 408
 409                     //
 410                     // Insert the short name entry if we have a valid short name
 411                     //
 412
 413                     if( ObjectInfoCB->Specific.Directory.ShortNameTree == NULL)
 414                     {
 415
 416                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 417                                       AFS_TRACE_LEVEL_VERBOSE,
 418                                       "AFSEnumerateDirectory Insert DE %p to head of shortname tree for %wZ\n",
 419                                       pDirNode,
 420                                       &pDirNode->NameInformation.FileName);
 421
 422                         ObjectInfoCB->Specific.Directory.ShortNameTree = pDirNode;
 423
 424                         SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_INSERTED_SHORT_NAME);
 425                     }
 426                     else
 427                     {
 428
 429                         if( NT_SUCCESS( AFSInsertShortNameDirEntry( ObjectInfoCB->Specific.Directory.ShortNameTree,
 430                                                                     pDirNode)))
 431                         {
 432                             SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_INSERTED_SHORT_NAME);
 433
 434                             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 435                                           AFS_TRACE_LEVEL_VERBOSE,
 436                                           "AFSEnumerateDirectory Insert DE %p to shortname tree for %wZ\n",
 437                                           pDirNode,
 438                                           &pDirNode->NameInformation.FileName);
 439                         }
 440                     }
 441                 }
 442
 443                 //
 444                 // Next dir entry
 445                 //
 446
 447                 pCurrentDirEntry = (AFSDirEnumEntry *)((char *)pCurrentDirEntry + ulEntryLength);
 448
 449                 if( ulResultLen >= ulEntryLength)
 450                 {
 451                     ulResultLen -= ulEntryLength;
 452                 }
 453                 else
 454                 {
 455                     ulResultLen = 0;
 456                 }
 457             }
 458
 459             ulResultLen = AFS_DIR_ENUM_BUFFER_LEN;
 460
 461             //
 462             // Reset the information in the request buffer since it got trampled
 463             // above
 464             //
 465
 466             pDirQueryCB->EnumHandle = pDirEnumResponse->EnumHandle;
 467
 468             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 469                           AFS_TRACE_LEVEL_VERBOSE,
 470                           "AFSEnumerateDirectory EnumHandle %08lX\n",
 471                           pDirQueryCB->EnumHandle);
 472
 473             //
 474             // If the enumeration handle is -1 then we are done
 475             //
 476
 477             if( ((ULONG)-1) == pDirQueryCB->EnumHandle )
 478             {
 479
 480                 break;
 481             }
 482         }
 483
 484 try_exit:
 485
 486         //
 487         // Cleanup
 488         //
 489
 490         if( pBuffer != NULL)
 491         {
 492
 493             AFSExFreePool( pBuffer);
 494         }
 495
 496         //
 497         // If the processing failed then we should reset the directory content in the event
 498         // it is re-enumerated
 499         //
 500
 501         if( !NT_SUCCESS( ntStatus))
 502         {
 503
 504             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 505                           AFS_TRACE_LEVEL_ERROR,
 506                           "AFSEnumerateDirectory Resetting content for FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
 507                           ObjectInfoCB->FileId.Cell,
 508                           ObjectInfoCB->FileId.Volume,
 509                           ObjectInfoCB->FileId.Vnode,
 510                           ObjectInfoCB->FileId.Unique,
 511                           ntStatus);
 512
 513             AFSResetDirectoryContent( ObjectInfoCB);
 514         }
 515     }
 516
 517     return ntStatus;
 518 }
 519
 520 NTSTATUS
 521 AFSEnumerateDirectoryNoResponse( IN GUID *AuthGroup,
 522                                  IN AFSFileID *FileId)
 523 {
 524
 525     NTSTATUS ntStatus = STATUS_SUCCESS;
 526     AFSDirQueryCB stDirQueryCB;
 527     ULONG   ulRequestFlags = 0;
 528
 529     __Enter
 530     {
 531
 532         //
 533         // Use the payload buffer for information we will pass to the service
 534         //
 535
 536         stDirQueryCB.EnumHandle = 0;
 537
 538         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_DIR_ENUM,
 539                                       ulRequestFlags,
 540                                       AuthGroup,
 541                                       NULL,
 542                                       FileId,
 543                                       (void *)&stDirQueryCB,
 544                                       sizeof( AFSDirQueryCB),
 545                                       NULL,
 546                                       NULL);
 547
 548         if( ntStatus != STATUS_SUCCESS)
 549         {
 550
 551             if( ntStatus == STATUS_NO_MORE_FILES ||
 552                 ntStatus == STATUS_NO_MORE_ENTRIES)
 553             {
 554
 555                 ntStatus = STATUS_SUCCESS;
 556             }
 557             else
 558             {
 559
 560                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 561                               AFS_TRACE_LEVEL_ERROR,
 562                               "AFSEnumerateDirectoryNoResponse Failed to enumerate directory Status %08lX\n",
 563                               ntStatus);
 564             }
 565         }
 566     }
 567
 568     return ntStatus;
 569 }
 570
 571 NTSTATUS
 572 AFSVerifyDirectoryContent( IN AFSObjectInfoCB *ObjectInfoCB,
 573                            IN GUID *AuthGroup)
 574 {
 575
 576     NTSTATUS ntStatus = STATUS_SUCCESS;
 577     void *pBuffer = NULL;
 578     ULONG ulResultLen = 0;
 579     AFSDirQueryCB *pDirQueryCB;
 580     AFSDirEnumEntry *pCurrentDirEntry = NULL;
 581     AFSDirectoryCB *pDirNode = NULL;
 582     ULONG  ulEntryLength = 0;
 583     AFSDirEnumResp *pDirEnumResponse = NULL;
 584     UNICODE_STRING uniDirName, uniTargetName;
 585     ULONG   ulRequestFlags = AFS_REQUEST_FLAG_SYNCHRONOUS | AFS_REQUEST_FLAG_FAST_REQUEST;
 586     ULONG ulCRC = 0;
 587     AFSObjectInfoCB *pObjectInfo = NULL;
 588     ULONGLONG ullIndex = 0;
 589     UNICODE_STRING uniGUID;
 590
 591     __Enter
 592     {
 593
 594         uniGUID.Length = 0;
 595         uniGUID.MaximumLength = 0;
 596         uniGUID.Buffer = NULL;
 597
 598         if( AuthGroup != NULL)
 599         {
 600             RtlStringFromGUID( *AuthGroup,
 601                                &uniGUID);
 602         }
 603
 604         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 605                       AFS_TRACE_LEVEL_VERBOSE,
 606                       "AFSVerifyDirectoryContent Verifying content for FID %08lX-%08lX-%08lX-%08lX AuthGroup %wZ\n",
 607                       ObjectInfoCB->FileId.Cell,
 608                       ObjectInfoCB->FileId.Volume,
 609                       ObjectInfoCB->FileId.Vnode,
 610                       ObjectInfoCB->FileId.Unique,
 611                       &uniGUID);
 612
 613         if( AuthGroup != NULL)
 614         {
 615             RtlFreeUnicodeString( &uniGUID);
 616         }
 617
 618         //
 619         // Initialize the directory enumeration buffer for the directory
 620         //
 621
 622         pBuffer = AFSExAllocatePoolWithTag( PagedPool,
 623                                             AFS_DIR_ENUM_BUFFER_LEN,
 624                                             AFS_DIR_BUFFER_TAG);
 625
 626         if( pBuffer == NULL)
 627         {
 628
 629             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
 630         }
 631
 632         RtlZeroMemory( pBuffer,
 633                        AFS_DIR_ENUM_BUFFER_LEN);
 634
 635         ulResultLen = AFS_DIR_ENUM_BUFFER_LEN;
 636
 637         //
 638         // Use the payload buffer for information we will pass to the service
 639         //
 640
 641         pDirQueryCB = (AFSDirQueryCB *)pBuffer;
 642
 643         pDirQueryCB->EnumHandle = 0;
 644
 645         //
 646         // Loop on the information
 647         //
 648
 649         while( TRUE)
 650         {
 651
 652             //
 653             // Go and retrieve the directory contents
 654             //
 655
 656             ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_DIR_ENUM,
 657                                           ulRequestFlags,
 658                                           AuthGroup,
 659                                           NULL,
 660                                           &ObjectInfoCB->FileId,
 661                                           (void *)pDirQueryCB,
 662                                           sizeof( AFSDirQueryCB),
 663                                           pBuffer,
 664                                           &ulResultLen);
 665
 666             if( ntStatus != STATUS_SUCCESS ||
 667                 ulResultLen == 0)
 668             {
 669
 670                 if( ntStatus == STATUS_NO_MORE_FILES ||
 671                     ntStatus == STATUS_NO_MORE_ENTRIES)
 672                 {
 673
 674                     ntStatus = STATUS_SUCCESS;
 675                 }
 676                 else
 677                 {
 678
 679                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 680                                   AFS_TRACE_LEVEL_ERROR,
 681                                   "AFSVerifyDirectoryContent Failed to enumerate directory Status %08lX\n",
 682                                   ntStatus);
 683                 }
 684
 685                 break;
 686             }
 687
 688             pDirEnumResponse = (AFSDirEnumResp *)pBuffer;
 689
 690             pCurrentDirEntry = (AFSDirEnumEntry *)pDirEnumResponse->Entry;
 691
 692             //
 693             // Remove the leading header from the processed length
 694             //
 695
 696             ulResultLen -= FIELD_OFFSET( AFSDirEnumResp, Entry);
 697
 698             while( ulResultLen > 0)
 699             {
 700
 701                 uniDirName.Length = (USHORT)pCurrentDirEntry->FileNameLength;
 702
 703                 uniDirName.MaximumLength = uniDirName.Length;
 704
 705                 uniDirName.Buffer = (WCHAR *)((char *)pCurrentDirEntry + pCurrentDirEntry->FileNameOffset);
 706
 707                 uniTargetName.Length = (USHORT)pCurrentDirEntry->TargetNameLength;
 708
 709                 uniTargetName.MaximumLength = uniTargetName.Length;
 710
 711                 uniTargetName.Buffer = (WCHAR *)((char *)pCurrentDirEntry + pCurrentDirEntry->TargetNameOffset);
 712
 713                 //
 714                 // Does this entry already exist in the directory?
 715                 //
 716
 717                 ulCRC = AFSGenerateCRC( &uniDirName,
 718                                         FALSE);
 719
 720                 ASSERT( ExIsResourceAcquiredExclusiveLite( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.TreeLock));
 721
 722                 AFSLocateCaseSensitiveDirEntry( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
 723                                                 ulCRC,
 724                                                 &pDirNode);
 725
 726                 //
 727                 //
 728                 // Set up the entry length
 729                 //
 730
 731                 ulEntryLength = QuadAlign( sizeof( AFSDirEnumEntry) +
 732                                            pCurrentDirEntry->FileNameLength +
 733                                            pCurrentDirEntry->TargetNameLength);
 734
 735                 if( pDirNode != NULL)
 736                 {
 737
 738                     //
 739                     // Check that the FIDs are the same
 740                     //
 741
 742                     if( AFSIsEqualFID( &pCurrentDirEntry->FileId,
 743                                        &pDirNode->ObjectInformation->FileId))
 744                     {
 745
 746                         AFSAcquireShared( ObjectInfoCB->VolumeCB->ObjectInfoTree.TreeLock,
 747                                           TRUE);
 748
 749                         ullIndex = AFSCreateLowIndex( &pCurrentDirEntry->FileId);
 750
 751                         ntStatus = AFSLocateHashEntry( ObjectInfoCB->VolumeCB->ObjectInfoTree.TreeHead,
 752                                                        ullIndex,
 753                                                        (AFSBTreeEntry **)&pObjectInfo);
 754
 755                         AFSReleaseResource( ObjectInfoCB->VolumeCB->ObjectInfoTree.TreeLock);
 756
 757                         if( NT_SUCCESS( ntStatus) &&
 758                             pObjectInfo != NULL)
 759                         {
 760
 761                             //
 762                             // Indicate this is a valid entry
 763                             //
 764
 765                             SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_VALID);
 766
 767                             if( pCurrentDirEntry->ShortNameLength > 0 &&
 768                                 pDirNode->NameInformation.ShortNameLength > 0)
 769                             {
 770                                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 771                                               AFS_TRACE_LEVEL_VERBOSE,
 772                                               "AFSVerifyDirectoryContent Verified entry %wZ (%wZ) old short name %S New short name %S\n",
 773                                               &uniDirName,
 774                                               &pDirNode->NameInformation.FileName,
 775                                               pDirNode->NameInformation.ShortName,
 776                                               pCurrentDirEntry->ShortName);
 777                             }
 778                             else if( pCurrentDirEntry->ShortNameLength == 0 &&
 779                                      pDirNode->NameInformation.ShortNameLength > 0)
 780                             {
 781                                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 782                                               AFS_TRACE_LEVEL_VERBOSE,
 783                                               "AFSVerifyDirectoryContent Verified entry %wZ (%wZ) old short name %S New short name NULL\n",
 784                                               &uniDirName,
 785                                               &pDirNode->NameInformation.FileName,
 786                                               pDirNode->NameInformation.ShortName);
 787                             }
 788                             else if( pCurrentDirEntry->ShortNameLength > 0 &&
 789                                      pDirNode->NameInformation.ShortNameLength == 0)
 790                             {
 791                                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 792                                               AFS_TRACE_LEVEL_VERBOSE,
 793                                               "AFSVerifyDirectoryContent Verified entry %wZ (%wZ) old short name NULL New short name %S\n",
 794                                               &uniDirName,
 795                                               &pDirNode->NameInformation.FileName,
 796                                               pCurrentDirEntry->ShortName);
 797                             }
 798                             else
 799                             {
 800                                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 801                                               AFS_TRACE_LEVEL_VERBOSE,
 802                                               "AFSVerifyDirectoryContent Verified entry %wZ (%wZ) old short name NULL New short name NULL\n",
 803                                               &uniDirName,
 804                                               &pDirNode->NameInformation.FileName);
 805                             }
 806
 807                             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 808                                           AFS_TRACE_LEVEL_VERBOSE,
 809                                           "AFSVerifyDirectoryContent Verified entry %wZ for parent FID %08lX-%08lX-%08lX-%08lX\n",
 810                                           &uniDirName,
 811                                           ObjectInfoCB->FileId.Cell,
 812                                           ObjectInfoCB->FileId.Volume,
 813                                           ObjectInfoCB->FileId.Vnode,
 814                                           ObjectInfoCB->FileId.Unique);
 815
 816
 817                             //
 818                             // Update the metadata for the entry
 819                             //
 820
 821                             if( pObjectInfo->DataVersion.QuadPart == 0 ||
 822                                 pObjectInfo->DataVersion.QuadPart != pCurrentDirEntry->DataVersion.QuadPart)
 823                             {
 824
 825                                 AFSUpdateMetaData( pDirNode,
 826                                                    pCurrentDirEntry);
 827
 828                                 if( pObjectInfo->FileType == AFS_FILE_TYPE_DIRECTORY)
 829                                 {
 830
 831                                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 832                                                   AFS_TRACE_LEVEL_VERBOSE,
 833                                                   "AFSVerifyDirectoryContent Setting VERIFY on entry %wZ for FID %08lX-%08lX-%08lX-%08lX\n",
 834                                                   &uniDirName,
 835                                                   ObjectInfoCB->FileId.Cell,
 836                                                   ObjectInfoCB->FileId.Volume,
 837                                                   ObjectInfoCB->FileId.Vnode,
 838                                                   ObjectInfoCB->FileId.Unique);
 839
 840                                     SetFlag( pObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
 841                                     pObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
 842                                     pObjectInfo->Expiration.QuadPart = 0;
 843                                 }
 844                             }
 845
 846                             //
 847                             // Next dir entry
 848                             //
 849
 850                             pCurrentDirEntry = (AFSDirEnumEntry *)((char *)pCurrentDirEntry + ulEntryLength);
 851
 852                             if( ulResultLen >= ulEntryLength)
 853                             {
 854                                 ulResultLen -= ulEntryLength;
 855                             }
 856                             else
 857                             {
 858                                 ulResultLen = 0;
 859                             }
 860
 861                             continue;
 862                         }
 863                     }
 864
 865                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 866                                   AFS_TRACE_LEVEL_VERBOSE,
 867                                   "AFSVerifyDirectoryContent Processing dir entry %p %wZ with different FID, same name in parent FID %08lX-%08lX-%08lX-%08lX\n",
 868                                   pDirNode,
 869                                   &pDirNode->NameInformation.FileName,
 870                                   ObjectInfoCB->FileId.Cell,
 871                                   ObjectInfoCB->FileId.Volume,
 872                                   ObjectInfoCB->FileId.Vnode,
 873                                   ObjectInfoCB->FileId.Unique);
 874
 875                     //
 876                     // Need to tear down this entry and rebuild it below
 877                     //
 878
 879                     if( pDirNode->OpenReferenceCount == 0)
 880                     {
 881
 882                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 883                                       AFS_TRACE_LEVEL_VERBOSE,
 884                                       "AFSVerifyDirectoryContent Different FIDs - Deleting DE %p for %wZ Old FID %08lX-%08lX-%08lX-%08lX New FID %08lX-%08lX-%08lX-%08lX\n",
 885                                       pDirNode,
 886                                       &pDirNode->NameInformation.FileName,
 887                                       ObjectInfoCB->FileId.Cell,
 888                                       ObjectInfoCB->FileId.Volume,
 889                                       ObjectInfoCB->FileId.Vnode,
 890                                       ObjectInfoCB->FileId.Unique,
 891                                       pCurrentDirEntry->FileId.Cell,
 892                                       pCurrentDirEntry->FileId.Volume,
 893                                       pCurrentDirEntry->FileId.Vnode,
 894                                       pCurrentDirEntry->FileId.Unique);
 895
 896                         AFSDeleteDirEntry( ObjectInfoCB,
 897                                            pDirNode);
 898                     }
 899                     else
 900                     {
 901
 902                         SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_DELETED);
 903
 904                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 905                                       AFS_TRACE_LEVEL_VERBOSE,
 906                                       "AFSVerifyDirectoryContent Different FIDs - removing DE %p for %wZ Old FID %08lX-%08lX-%08lX-%08lX New FID %08lX-%08lX-%08lX-%08lX\n",
 907                                       pDirNode,
 908                                       &pDirNode->NameInformation.FileName,
 909                                       ObjectInfoCB->FileId.Cell,
 910                                       ObjectInfoCB->FileId.Volume,
 911                                       ObjectInfoCB->FileId.Vnode,
 912                                       ObjectInfoCB->FileId.Unique,
 913                                       pCurrentDirEntry->FileId.Cell,
 914                                       pCurrentDirEntry->FileId.Volume,
 915                                       pCurrentDirEntry->FileId.Vnode,
 916                                       pCurrentDirEntry->FileId.Unique);
 917
 918                         AFSRemoveNameEntry( ObjectInfoCB,
 919                                             pDirNode);
 920                     }
 921                 }
 922
 923                 pDirNode = AFSInitDirEntry( ObjectInfoCB,
 924                                             &uniDirName,
 925                                             &uniTargetName,
 926                                             pCurrentDirEntry,
 927                                             (ULONG)InterlockedIncrement( &ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.ContentIndex));
 928
 929                 if( pDirNode == NULL)
 930                 {
 931
 932                     ntStatus = STATUS_INSUFFICIENT_RESOURCES;
 933
 934                     break;
 935                 }
 936
 937                 //
 938                 // Init the short name if we have one
 939                 //
 940
 941                 if( pCurrentDirEntry->ShortNameLength > 0)
 942                 {
 943
 944                     UNICODE_STRING uniShortName;
 945
 946                     pDirNode->NameInformation.ShortNameLength = pCurrentDirEntry->ShortNameLength;
 947
 948                     RtlCopyMemory( pDirNode->NameInformation.ShortName,
 949                                    pCurrentDirEntry->ShortName,
 950                                    pDirNode->NameInformation.ShortNameLength);
 951
 952                     //
 953                     // Generate the short name index
 954                     //
 955
 956                     uniShortName.Length = pDirNode->NameInformation.ShortNameLength;
 957                     uniShortName.MaximumLength = uniShortName.Length;
 958                     uniShortName.Buffer = pDirNode->NameInformation.ShortName;
 959
 960                     if( !RtlIsNameLegalDOS8Dot3( &pDirNode->NameInformation.FileName,
 961                                                  NULL,
 962                                                  NULL))
 963                     {
 964
 965                         pDirNode->Type.Data.ShortNameTreeEntry.HashIndex = AFSGenerateCRC( &uniShortName,
 966                                                                                            TRUE);
 967
 968                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 969                                       AFS_TRACE_LEVEL_VERBOSE,
 970                                       "AFSVerifyDirectoryContent Initialized short name %wZ for DE %p for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
 971                                       &uniShortName,
 972                                       pDirNode,
 973                                       &pDirNode->NameInformation.FileName,
 974                                       pCurrentDirEntry->FileId.Cell,
 975                                       pCurrentDirEntry->FileId.Volume,
 976                                       pCurrentDirEntry->FileId.Vnode,
 977                                       pCurrentDirEntry->FileId.Unique);
 978                     }
 979                     else
 980                     {
 981                         pDirNode->NameInformation.ShortNameLength = 0;
 982
 983                         RtlZeroMemory( pDirNode->NameInformation.ShortName,
 984                                        (12 * sizeof( WCHAR)));
 985                     }
 986                 }
 987                 else
 988                 {
 989
 990                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 991                                   AFS_TRACE_LEVEL_VERBOSE,
 992                                   "AFSVerifyDirectoryContent NO short name for DE %p for %wZ FID %08lX-%08lX-%08lX-%08lX\n",
 993                                   pDirNode,
 994                                   &pDirNode->NameInformation.FileName,
 995                                   pCurrentDirEntry->FileId.Cell,
 996                                   pCurrentDirEntry->FileId.Volume,
 997                                   pCurrentDirEntry->FileId.Vnode,
 998                                   pCurrentDirEntry->FileId.Unique);
 999                 }
1000
1001                 //
1002                 // Insert the node into the name tree
1003                 //
1004
1005                 ASSERT( ExIsResourceAcquiredExclusiveLite( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.TreeLock));
1006
1007                 if( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead == NULL)
1008                 {
1009
1010                     ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead = pDirNode;
1011
1012                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1013                                   AFS_TRACE_LEVEL_VERBOSE,
1014                                   "AFSVerifyDirectoryContent Insert DE %p to head of case sensitive tree for %wZ\n",
1015                                   pDirNode,
1016                                   &pDirNode->NameInformation.FileName);
1017                 }
1018                 else
1019                 {
1020
1021                     if( !NT_SUCCESS( AFSInsertCaseSensitiveDirEntry( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
1022                                                                      pDirNode)))
1023                     {
1024                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1025                                       AFS_TRACE_LEVEL_VERBOSE,
1026                                       "AFSVerifyDirectoryContent Failed to nsert DE %p to case sensitive tree for %wZ\n",
1027                                       pDirNode,
1028                                       &pDirNode->NameInformation.FileName);
1029
1030                         //
1031                         // Delete this dir entry and continue on
1032                         //
1033
1034                         AFSDeleteDirEntry( ObjectInfoCB,
1035                                            pDirNode);
1036
1037                         pCurrentDirEntry = (AFSDirEnumEntry *)((char *)pCurrentDirEntry + ulEntryLength);
1038
1039                         if( ulResultLen >= ulEntryLength)
1040                         {
1041                             ulResultLen -= ulEntryLength;
1042                         }
1043                         else
1044                         {
1045                             ulResultLen = 0;
1046                         }
1047
1048                         continue;
1049                     }
1050                     else
1051                     {
1052                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1053                                       AFS_TRACE_LEVEL_VERBOSE,
1054                                       "AFSVerifyDirectoryContent Insert DE %p to case sensitive tree for %wZ\n",
1055                                       pDirNode,
1056                                       &pDirNode->NameInformation.FileName);
1057                     }
1058                 }
1059
1060                 ClearFlag( pDirNode->Flags, AFS_DIR_ENTRY_NOT_IN_PARENT_TREE);
1061
1062                 if( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead == NULL)
1063                 {
1064
1065                     ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead = pDirNode;
1066
1067                     SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_CASE_INSENSTIVE_LIST_HEAD);
1068
1069                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1070                                   AFS_TRACE_LEVEL_VERBOSE,
1071                                   "AFSVerifyDirectoryContent Insert DE %p to head of case insensitive tree for %wZ\n",
1072                                   pDirNode,
1073                                   &pDirNode->NameInformation.FileName);
1074                 }
1075                 else
1076                 {
1077
1078                     AFSInsertCaseInsensitiveDirEntry( ObjectInfoCB->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead,
1079                                                       pDirNode);
1080
1081                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1082                                   AFS_TRACE_LEVEL_VERBOSE,
1083                                   "AFSVerifyDirectoryContent Insert DE %p to case insensitive tree for %wZ\n",
1084                                   pDirNode,
1085                                   &pDirNode->NameInformation.FileName);
1086                 }
1087
1088                 if( ObjectInfoCB->Specific.Directory.DirectoryNodeListHead == NULL)
1089                 {
1090
1091                     ObjectInfoCB->Specific.Directory.DirectoryNodeListHead = pDirNode;
1092                 }
1093                 else
1094                 {
1095
1096                     (ObjectInfoCB->Specific.Directory.DirectoryNodeListTail)->ListEntry.fLink = pDirNode;
1097
1098                     pDirNode->ListEntry.bLink = ObjectInfoCB->Specific.Directory.DirectoryNodeListTail;
1099                 }
1100
1101                 ObjectInfoCB->Specific.Directory.DirectoryNodeListTail = pDirNode;
1102
1103                 SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_INSERTED_ENUM_LIST);
1104
1105                 InterlockedIncrement( &ObjectInfoCB->Specific.Directory.DirectoryNodeCount);
1106
1107                 AFSDbgLogMsg( AFS_SUBSYSTEM_DIR_NODE_COUNT,
1108                               AFS_TRACE_LEVEL_VERBOSE,
1109                               "AFSVerifyDirectoryContent Adding entry %wZ Inc Count %d to parent FID %08lX-%08lX-%08lX-%08lX\n",
1110                               &pDirNode->NameInformation.FileName,
1111                               ObjectInfoCB->Specific.Directory.DirectoryNodeCount,
1112                               ObjectInfoCB->FileId.Cell,
1113                               ObjectInfoCB->FileId.Volume,
1114                               ObjectInfoCB->FileId.Vnode,
1115                               ObjectInfoCB->FileId.Unique);
1116
1117                 if( pDirNode->Type.Data.ShortNameTreeEntry.HashIndex != 0)
1118                 {
1119
1120                     //
1121                     // Insert the short name entry if we have a valid short name
1122                     //
1123
1124                     if( ObjectInfoCB->Specific.Directory.ShortNameTree == NULL)
1125                     {
1126
1127                         ObjectInfoCB->Specific.Directory.ShortNameTree = pDirNode;
1128
1129                         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1130                                       AFS_TRACE_LEVEL_VERBOSE,
1131                                       "AFSVerifyDirectoryContent Insert DE %p to head of shortname tree for %wZ\n",
1132                                       pDirNode,
1133                                       &pDirNode->NameInformation.FileName);
1134
1135                         SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_INSERTED_SHORT_NAME);
1136                     }
1137                     else
1138                     {
1139
1140                         if( !NT_SUCCESS( AFSInsertShortNameDirEntry( ObjectInfoCB->Specific.Directory.ShortNameTree,
1141                                                                      pDirNode)))
1142                         {
1143                             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1144                                           AFS_TRACE_LEVEL_VERBOSE,
1145                                           "AFSVerifyDirectoryContent Failed to insert DE %p (%08lX) to shortname tree for %wZ\n",
1146                                           pDirNode,
1147                                           pDirNode->Type.Data.ShortNameTreeEntry.HashIndex,
1148                                           &pDirNode->NameInformation.FileName);
1149                         }
1150                         else
1151                         {
1152                             SetFlag( pDirNode->Flags, AFS_DIR_ENTRY_INSERTED_SHORT_NAME);
1153
1154                             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1155                                           AFS_TRACE_LEVEL_VERBOSE,
1156                                           "AFSVerifyDirectoryContent Insert DE %p to shortname tree for %wZ\n",
1157                                           pDirNode,
1158                                           &pDirNode->NameInformation.FileName);
1159                         }
1160                     }
1161                 }
1162
1163                 //
1164                 // Next dir entry
1165                 //
1166
1167                 pCurrentDirEntry = (AFSDirEnumEntry *)((char *)pCurrentDirEntry + ulEntryLength);
1168
1169                 if( ulResultLen >= ulEntryLength)
1170                 {
1171                     ulResultLen -= ulEntryLength;
1172                 }
1173                 else
1174                 {
1175                     ulResultLen = 0;
1176                 }
1177             }
1178
1179             ulResultLen = AFS_DIR_ENUM_BUFFER_LEN;
1180
1181             //
1182             // Reset the information in the request buffer since it got trampled
1183             // above
1184             //
1185
1186             pDirQueryCB->EnumHandle = pDirEnumResponse->EnumHandle;
1187
1188             //
1189             // If the enumeration handle is -1 then we are done
1190             //
1191
1192             if( ((ULONG)-1) == pDirQueryCB->EnumHandle )
1193             {
1194
1195                 break;
1196             }
1197         }
1198
1199 try_exit:
1200
1201         //
1202         // Cleanup
1203         //
1204
1205         if( pBuffer != NULL)
1206         {
1207
1208             AFSExFreePool( pBuffer);
1209         }
1210     }
1211
1212     return ntStatus;
1213 }
1214
1215 NTSTATUS
1216 AFSNotifyFileCreate( IN GUID            *AuthGroup,
1217                      IN AFSObjectInfoCB *ParentObjectInfo,
1218                      IN PLARGE_INTEGER FileSize,
1219                      IN ULONG FileAttributes,
1220                      IN UNICODE_STRING *FileName,
1221                      OUT AFSDirectoryCB **DirNode)
1222 {
1223
1224     NTSTATUS ntStatus = STATUS_SUCCESS;
1225     AFSFileCreateCB stCreateCB;
1226     AFSFileCreateResultCB *pResultCB = NULL;
1227     ULONG ulResultLen = 0;
1228     UNICODE_STRING uniTargetName;
1229     AFSDirectoryCB *pDirNode = NULL;
1230     ULONG     ulCRC = 0;
1231     LARGE_INTEGER liOldDataVersion;
1232
1233     __Enter
1234     {
1235
1236         //
1237         // Init the control block for the request
1238         //
1239
1240         RtlZeroMemory( &stCreateCB,
1241                        sizeof( AFSFileCreateCB));
1242
1243         stCreateCB.ParentId = ParentObjectInfo->FileId;
1244
1245         stCreateCB.AllocationSize = *FileSize;
1246
1247         stCreateCB.FileAttributes = FileAttributes;
1248
1249         stCreateCB.EaSize = 0;
1250
1251         liOldDataVersion = ParentObjectInfo->DataVersion;
1252
1253         //
1254         // Allocate our return buffer
1255         //
1256
1257         pResultCB = (AFSFileCreateResultCB *)AFSExAllocatePoolWithTag( PagedPool,
1258                                                                        PAGE_SIZE,
1259                                                                        AFS_GENERIC_MEMORY_1_TAG);
1260
1261         if( pResultCB == NULL)
1262         {
1263
1264             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
1265         }
1266
1267         RtlZeroMemory( pResultCB,
1268                        PAGE_SIZE);
1269
1270         ulResultLen = PAGE_SIZE;
1271
1272         //
1273         // Send the call to the service
1274         //
1275
1276         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_CREATE_FILE,
1277                                       AFS_REQUEST_FLAG_SYNCHRONOUS | AFS_REQUEST_FLAG_HOLD_FID,
1278                                       AuthGroup,
1279                                       FileName,
1280                                       NULL,
1281                                       &stCreateCB,
1282                                       sizeof( AFSFileCreateCB),
1283                                       pResultCB,
1284                                       &ulResultLen);
1285
1286         if( ntStatus != STATUS_SUCCESS)
1287         {
1288
1289             if( NT_SUCCESS( ntStatus))
1290             {
1291
1292                 ntStatus = STATUS_DEVICE_NOT_READY;
1293             }
1294
1295             try_return( ntStatus);
1296         }
1297
1298         //
1299         // We may have raced with an invalidation call and a subsequent re-enumeration of this parent
1300         // and though we created the node, it is already in our list. If this is the case then
1301         // look up the entry rather than create a new entry
1302         // The check is to ensure the DV has been modified
1303         //
1304
1305         if( liOldDataVersion.QuadPart != pResultCB->ParentDataVersion.QuadPart - 1 ||
1306             liOldDataVersion.QuadPart != ParentObjectInfo->DataVersion.QuadPart)
1307         {
1308
1309             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1310                           AFS_TRACE_LEVEL_VERBOSE,
1311                           "AFSNotifyFileCreate Raced with an invalidate call and a re-enumeration for entry %wZ\n",
1312                           FileName);
1313
1314             //
1315             // We raced so go and lookup the directory entry in the parent
1316             //
1317
1318             ulCRC = AFSGenerateCRC( FileName,
1319                                     FALSE);
1320
1321             AFSAcquireShared( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock,
1322                               TRUE);
1323
1324             AFSLocateCaseSensitiveDirEntry( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
1325                                             ulCRC,
1326                                             &pDirNode);
1327
1328             AFSReleaseResource( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
1329
1330             if( pDirNode != NULL)
1331             {
1332
1333                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1334                               AFS_TRACE_LEVEL_VERBOSE,
1335                               "AFSNotifyFileCreate Located dir entry for file %wZ\n",
1336                               FileName);
1337
1338                 *DirNode = pDirNode;
1339
1340                 try_return( ntStatus = STATUS_REPARSE);
1341             }
1342
1343             //
1344             // We are unsure of our current data so set the verify flag. It may already be set
1345             // but no big deal to reset it
1346             //
1347
1348             SetFlag( ParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
1349
1350             ParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
1351         }
1352         else
1353         {
1354
1355             //
1356             // Update the parent data version
1357             //
1358
1359             ParentObjectInfo->DataVersion = pResultCB->ParentDataVersion;
1360         }
1361
1362         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1363                       AFS_TRACE_LEVEL_VERBOSE,
1364                       "AFSNotifyFileCreate Creating new entry %wZ\n",
1365                       FileName);
1366
1367         //
1368         // Initialize the directory entry
1369         //
1370
1371         uniTargetName.Length = (USHORT)pResultCB->DirEnum.TargetNameLength;
1372
1373         uniTargetName.MaximumLength = uniTargetName.Length;
1374
1375         uniTargetName.Buffer = (WCHAR *)((char *)&pResultCB->DirEnum + pResultCB->DirEnum.TargetNameOffset);
1376
1377         pDirNode = AFSInitDirEntry( ParentObjectInfo,
1378                                     FileName,
1379                                     &uniTargetName,
1380                                     &pResultCB->DirEnum,
1381                                     (ULONG)InterlockedIncrement( &ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.ContentIndex));
1382
1383         if( pDirNode == NULL)
1384         {
1385
1386             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
1387         }
1388
1389         //
1390         // Init the short name if we have one
1391         //
1392
1393         if( pResultCB->DirEnum.ShortNameLength > 0)
1394         {
1395
1396             UNICODE_STRING uniShortName;
1397
1398             pDirNode->NameInformation.ShortNameLength = pResultCB->DirEnum.ShortNameLength;
1399
1400             RtlCopyMemory( pDirNode->NameInformation.ShortName,
1401                            pResultCB->DirEnum.ShortName,
1402                            pDirNode->NameInformation.ShortNameLength);
1403
1404             //
1405             // Generate the short name index
1406             //
1407
1408             uniShortName.Length = pDirNode->NameInformation.ShortNameLength;
1409             uniShortName.Buffer = pDirNode->NameInformation.ShortName;
1410
1411             pDirNode->Type.Data.ShortNameTreeEntry.HashIndex = AFSGenerateCRC( &uniShortName,
1412                                                                                TRUE);
1413
1414             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1415                           AFS_TRACE_LEVEL_VERBOSE,
1416                           "AFSNotifyFileCreate Initialized short name %wZ for DE %p for %wZ\n",
1417                           &uniShortName,
1418                           pDirNode,
1419                           &pDirNode->NameInformation.FileName);
1420         }
1421
1422         //
1423         // Return the directory node
1424         //
1425
1426         *DirNode = pDirNode;
1427
1428 try_exit:
1429
1430         if( pResultCB != NULL)
1431         {
1432
1433             AFSExFreePool( pResultCB);
1434         }
1435     }
1436
1437     return ntStatus;
1438 }
1439
1440 NTSTATUS
1441 AFSUpdateFileInformation( IN AFSFileID *ParentFid,
1442                           IN AFSObjectInfoCB *ObjectInfo,
1443                           IN GUID *AuthGroup)
1444 {
1445
1446     NTSTATUS ntStatus = STATUS_SUCCESS;
1447     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1448     AFSFileUpdateCB stUpdateCB;
1449     ULONG ulResultLen = 0;
1450     AFSFileUpdateResultCB *pUpdateResultCB = NULL;
1451
1452     __Enter
1453     {
1454
1455         //
1456         // Init the control block for the request
1457         //
1458
1459         RtlZeroMemory( &stUpdateCB,
1460                        sizeof( AFSFileUpdateCB));
1461
1462         stUpdateCB.AllocationSize = ObjectInfo->EndOfFile;
1463
1464         stUpdateCB.FileAttributes = ObjectInfo->FileAttributes;
1465
1466         stUpdateCB.EaSize = ObjectInfo->EaSize;
1467
1468         stUpdateCB.ParentId = *ParentFid;
1469
1470         stUpdateCB.LastAccessTime = ObjectInfo->LastAccessTime;
1471
1472         stUpdateCB.CreateTime = ObjectInfo->CreationTime;
1473
1474         stUpdateCB.ChangeTime = ObjectInfo->ChangeTime;
1475
1476         stUpdateCB.LastWriteTime = ObjectInfo->LastWriteTime;
1477
1478         pUpdateResultCB = (AFSFileUpdateResultCB *)AFSExAllocatePoolWithTag( PagedPool,
1479                                                                              PAGE_SIZE,
1480                                                                              AFS_UPDATE_RESULT_TAG);
1481
1482         if( pUpdateResultCB == NULL)
1483         {
1484
1485             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
1486         }
1487
1488         ulResultLen = PAGE_SIZE;
1489
1490         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_UPDATE_FILE,
1491                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
1492                                       AuthGroup,
1493                                       NULL,
1494                                       &ObjectInfo->FileId,
1495                                       &stUpdateCB,
1496                                       sizeof( AFSFileUpdateCB),
1497                                       pUpdateResultCB,
1498                                       &ulResultLen);
1499
1500         if( ntStatus != STATUS_SUCCESS)
1501         {
1502
1503             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1504                           AFS_TRACE_LEVEL_ERROR,
1505                           "AFSUpdateFileInformation failed FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1506                           ObjectInfo->FileId.Cell,
1507                           ObjectInfo->FileId.Volume,
1508                           ObjectInfo->FileId.Vnode,
1509                           ObjectInfo->FileId.Unique,
1510                           ntStatus);
1511
1512             try_return( ntStatus);
1513         }
1514
1515         //
1516         // Update the data version
1517         //
1518
1519         ObjectInfo->DataVersion = pUpdateResultCB->DirEnum.DataVersion;
1520
1521 try_exit:
1522
1523         if( pUpdateResultCB != NULL)
1524         {
1525
1526             AFSExFreePool( pUpdateResultCB);
1527         }
1528     }
1529
1530     return ntStatus;
1531 }
1532
1533 NTSTATUS
1534 AFSNotifyDelete( IN AFSDirectoryCB *DirectoryCB,
1535                  IN BOOLEAN CheckOnly)
1536 {
1537     NTSTATUS ntStatus = STATUS_SUCCESS;
1538     ULONG ulResultLen = 0;
1539     AFSFileDeleteCB stDelete;
1540     AFSFileDeleteResultCB stDeleteResult;
1541     ULONG ulRequestFlags = AFS_REQUEST_FLAG_SYNCHRONOUS;
1542     GUID *pAuthGroup = NULL;
1543
1544     __Enter
1545     {
1546
1547         stDelete.ParentId = DirectoryCB->ObjectInformation->ParentObjectInformation->FileId;
1548
1549         stDelete.ProcessId = (ULONGLONG)PsGetCurrentProcessId();
1550
1551         ulResultLen = sizeof( AFSFileDeleteResultCB);
1552
1553         if( CheckOnly)
1554         {
1555             ulRequestFlags |= AFS_REQUEST_FLAG_CHECK_ONLY;
1556         }
1557
1558         if( DirectoryCB->ObjectInformation->Fcb != NULL)
1559         {
1560             pAuthGroup = &DirectoryCB->ObjectInformation->Fcb->AuthGroup;
1561         }
1562
1563         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_DELETE_FILE,
1564                                       ulRequestFlags,
1565                                       pAuthGroup,
1566                                       &DirectoryCB->NameInformation.FileName,
1567                                       &DirectoryCB->ObjectInformation->FileId,
1568                                       &stDelete,
1569                                       sizeof( AFSFileDeleteCB),
1570                                       &stDeleteResult,
1571                                       &ulResultLen);
1572
1573         if( ntStatus != STATUS_SUCCESS)
1574         {
1575
1576             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1577                           AFS_TRACE_LEVEL_ERROR,
1578                           "AFSNotifyDelete failed FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1579                           &DirectoryCB->ObjectInformation->FileId.Cell,
1580                           &DirectoryCB->ObjectInformation->FileId.Volume,
1581                           &DirectoryCB->ObjectInformation->FileId.Vnode,
1582                           &DirectoryCB->ObjectInformation->FileId.Unique,
1583                           ntStatus);
1584
1585             try_return( ntStatus);
1586         }
1587
1588         if( !CheckOnly)
1589         {
1590
1591             //
1592             // Update the parent data version
1593             //
1594
1595             if( DirectoryCB->ObjectInformation->ParentObjectInformation->DataVersion.QuadPart != stDeleteResult.ParentDataVersion.QuadPart)
1596             {
1597
1598                 SetFlag( DirectoryCB->ObjectInformation->ParentObjectInformation->Flags, AFS_OBJECT_FLAGS_VERIFY);
1599
1600                 DirectoryCB->ObjectInformation->ParentObjectInformation->DataVersion.QuadPart = (ULONGLONG)-1;
1601             }
1602         }
1603
1604 try_exit:
1605
1606         NOTHING;
1607     }
1608
1609     return ntStatus;
1610 }
1611
1612 NTSTATUS
1613 AFSNotifyRename( IN AFSObjectInfoCB *ObjectInfo,
1614                  IN AFSObjectInfoCB *ParentObjectInfo,
1615                  IN AFSObjectInfoCB *TargetParentObjectInfo,
1616                  IN AFSDirectoryCB *DirectoryCB,
1617                  IN UNICODE_STRING *TargetName,
1618                  OUT AFSFileID  *UpdatedFID)
1619 {
1620
1621     NTSTATUS ntStatus = STATUS_SUCCESS;
1622     AFSFileRenameCB *pRenameCB = NULL;
1623     AFSFileRenameResultCB *pRenameResultCB = NULL;
1624     ULONG ulResultLen = 0;
1625     GUID *pAuthGroup = NULL;
1626
1627     __Enter
1628     {
1629
1630         //
1631         // Init the control block for the request
1632         //
1633
1634         pRenameCB = (AFSFileRenameCB *)AFSExAllocatePoolWithTag( PagedPool,
1635                                                                  PAGE_SIZE,
1636                                                                  AFS_RENAME_REQUEST_TAG);
1637
1638         if( pRenameCB == NULL)
1639         {
1640
1641             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
1642         }
1643
1644         RtlZeroMemory( pRenameCB,
1645                        PAGE_SIZE);
1646
1647         pRenameCB->SourceParentId = ParentObjectInfo->FileId;
1648
1649         pRenameCB->TargetParentId = TargetParentObjectInfo->FileId;
1650
1651         pRenameCB->TargetNameLength = TargetName->Length;
1652
1653         RtlCopyMemory( pRenameCB->TargetName,
1654                        TargetName->Buffer,
1655                        TargetName->Length);
1656
1657         if( ObjectInfo->Fcb != NULL)
1658         {
1659             pAuthGroup = &ObjectInfo->Fcb->AuthGroup;
1660         }
1661
1662         //
1663         // Use the same buffer for the result control block
1664         //
1665
1666         pRenameResultCB = (AFSFileRenameResultCB *)pRenameCB;
1667
1668         ulResultLen = PAGE_SIZE;
1669
1670         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_RENAME_FILE,
1671                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
1672                                       pAuthGroup,
1673                                       &DirectoryCB->NameInformation.FileName,
1674                                       &ObjectInfo->FileId,
1675                                       pRenameCB,
1676                                       sizeof( AFSFileRenameCB) + TargetName->Length,
1677                                       pRenameResultCB,
1678                                       &ulResultLen);
1679
1680         if( ntStatus != STATUS_SUCCESS)
1681         {
1682
1683             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1684                           AFS_TRACE_LEVEL_ERROR,
1685                           "AFSNotifyRename failed FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1686                           ObjectInfo->FileId.Cell,
1687                           ObjectInfo->FileId.Volume,
1688                           ObjectInfo->FileId.Vnode,
1689                           ObjectInfo->FileId.Unique,
1690                           ntStatus);
1691
1692             try_return( ntStatus);
1693         }
1694
1695         //
1696         // Update the information from the returned data
1697         //
1698
1699         ParentObjectInfo->DataVersion = pRenameResultCB->SourceParentDataVersion;
1700
1701         TargetParentObjectInfo->DataVersion = pRenameResultCB->TargetParentDataVersion;
1702
1703         //
1704         // Move over the short name
1705         //
1706
1707         DirectoryCB->NameInformation.ShortNameLength = pRenameResultCB->DirEnum.ShortNameLength;
1708
1709         if( DirectoryCB->NameInformation.ShortNameLength > 0)
1710         {
1711
1712             UNICODE_STRING uniShortName;
1713
1714             uniShortName.Length = DirectoryCB->NameInformation.ShortNameLength;
1715             uniShortName.MaximumLength = uniShortName.Length;
1716             uniShortName.Buffer = DirectoryCB->NameInformation.ShortName;
1717
1718             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1719                           AFS_TRACE_LEVEL_VERBOSE,
1720                           "AFSNotifyRename Update old short name %wZ for DE %p for %wZ\n",
1721                           &uniShortName,
1722                           DirectoryCB,
1723                           &DirectoryCB->NameInformation.FileName);
1724
1725             DirectoryCB->NameInformation.ShortNameLength = pRenameResultCB->DirEnum.ShortNameLength;
1726
1727             RtlCopyMemory( DirectoryCB->NameInformation.ShortName,
1728                            pRenameResultCB->DirEnum.ShortName,
1729                            DirectoryCB->NameInformation.ShortNameLength);
1730
1731             uniShortName.Length = DirectoryCB->NameInformation.ShortNameLength;
1732             uniShortName.MaximumLength = uniShortName.Length;
1733             uniShortName.Buffer = DirectoryCB->NameInformation.ShortName;
1734
1735             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1736                           AFS_TRACE_LEVEL_VERBOSE,
1737                           "AFSNotifyRename Initialized short name %wZ for DE %p for %wZ\n",
1738                           &uniShortName,
1739                           DirectoryCB,
1740                           &DirectoryCB->NameInformation.FileName);
1741         }
1742         else
1743         {
1744
1745             UNICODE_STRING uniShortName;
1746
1747             uniShortName.Length = DirectoryCB->NameInformation.ShortNameLength;
1748             uniShortName.MaximumLength = uniShortName.Length;
1749             uniShortName.Buffer = DirectoryCB->NameInformation.ShortName;
1750
1751             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1752                           AFS_TRACE_LEVEL_VERBOSE,
1753                           "AFSNotifyRename Removing old short name %wZ for DE %p for %wZ\n",
1754                           &uniShortName,
1755                           DirectoryCB,
1756                           &DirectoryCB->NameInformation.FileName);
1757
1758             DirectoryCB->NameInformation.ShortNameLength = 0;
1759
1760             DirectoryCB->Type.Data.ShortNameTreeEntry.HashIndex = 0;
1761         }
1762
1763         if( UpdatedFID != NULL)
1764         {
1765             *UpdatedFID = pRenameResultCB->DirEnum.FileId;
1766         }
1767
1768 try_exit:
1769
1770         if( pRenameCB != NULL)
1771         {
1772
1773             AFSExFreePool( pRenameCB);
1774         }
1775     }
1776
1777     return ntStatus;
1778 }
1779
1780 NTSTATUS
1781 AFSEvaluateTargetByID( IN AFSObjectInfoCB *ObjectInfo,
1782                        IN GUID *AuthGroup,
1783                        IN BOOLEAN FastCall,
1784                        OUT AFSDirEnumEntry **DirEnumEntry)
1785 {
1786
1787     NTSTATUS ntStatus = STATUS_SUCCESS;
1788     AFSEvalTargetCB stTargetID;
1789     ULONG ulResultBufferLength;
1790     AFSDirEnumEntry *pDirEnumCB = NULL;
1791     ULONG ulRequestFlags = AFS_REQUEST_FLAG_SYNCHRONOUS;
1792
1793     __Enter
1794     {
1795
1796         RtlZeroMemory( &stTargetID,
1797                        sizeof( AFSEvalTargetCB));
1798
1799         if( ObjectInfo->ParentObjectInformation != NULL)
1800         {
1801
1802             stTargetID.ParentId = ObjectInfo->ParentObjectInformation->FileId;
1803         }
1804
1805         //
1806         // Allocate our response buffer
1807         //
1808
1809         pDirEnumCB = (AFSDirEnumEntry *)AFSExAllocatePoolWithTag( PagedPool,
1810                                                                   PAGE_SIZE,
1811                                                                   AFS_GENERIC_MEMORY_2_TAG);
1812
1813         if( pDirEnumCB == NULL)
1814         {
1815
1816             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
1817         }
1818
1819         //
1820         // Call to the service to evaluate the fid
1821         //
1822
1823         ulResultBufferLength = PAGE_SIZE;
1824
1825         if( FastCall)
1826         {
1827
1828             ulRequestFlags |= AFS_REQUEST_FLAG_FAST_REQUEST;
1829         }
1830
1831         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_EVAL_TARGET_BY_ID,
1832                                       ulRequestFlags,
1833                                       AuthGroup,
1834                                       NULL,
1835                                       &ObjectInfo->FileId,
1836                                       &stTargetID,
1837                                       sizeof( AFSEvalTargetCB),
1838                                       pDirEnumCB,
1839                                       &ulResultBufferLength);
1840
1841         if( ntStatus != STATUS_SUCCESS)
1842         {
1843
1844             //
1845             // If we received back a STATUS_INVALID_HANDLE then mark the parent as requiring
1846             // verification
1847             //
1848
1849             if( ntStatus == STATUS_INVALID_HANDLE)
1850             {
1851
1852                 if( ObjectInfo->ParentObjectInformation != NULL)
1853                 {
1854
1855                     SetFlag( ObjectInfo->ParentObjectInformation->Flags, AFS_OBJECT_FLAGS_VERIFY);
1856                 }
1857             }
1858
1859             try_return( ntStatus);
1860         }
1861
1862         //
1863         // Pass back the dir enum entry
1864         //
1865
1866         if( DirEnumEntry != NULL)
1867         {
1868
1869             *DirEnumEntry = pDirEnumCB;
1870         }
1871         else
1872         {
1873
1874             AFSExFreePool( pDirEnumCB);
1875         }
1876
1877 try_exit:
1878
1879         if( !NT_SUCCESS( ntStatus))
1880         {
1881
1882             if( pDirEnumCB != NULL)
1883             {
1884
1885                 AFSExFreePool( pDirEnumCB);
1886             }
1887
1888             *DirEnumEntry = NULL;
1889         }
1890     }
1891
1892     return ntStatus;
1893 }
1894
1895 NTSTATUS
1896 AFSEvaluateTargetByName( IN GUID *AuthGroup,
1897                          IN AFSFileID *ParentFileId,
1898                          IN PUNICODE_STRING SourceName,
1899                          OUT AFSDirEnumEntry **DirEnumEntry)
1900 {
1901
1902     NTSTATUS ntStatus = STATUS_SUCCESS;
1903     AFSEvalTargetCB stTargetID;
1904     ULONG ulResultBufferLength;
1905     AFSDirEnumEntry *pDirEnumCB = NULL;
1906
1907     __Enter
1908     {
1909
1910         stTargetID.ParentId = *ParentFileId;
1911
1912         //
1913         // Allocate our response buffer
1914         //
1915
1916         pDirEnumCB = (AFSDirEnumEntry *)AFSExAllocatePoolWithTag( PagedPool,
1917                                                                   PAGE_SIZE,
1918                                                                   AFS_GENERIC_MEMORY_3_TAG);
1919
1920         if( pDirEnumCB == NULL)
1921         {
1922
1923             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
1924         }
1925
1926         //
1927         // Call to the service to evaluate the fid
1928         //
1929
1930         ulResultBufferLength = PAGE_SIZE;
1931
1932         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_EVAL_TARGET_BY_NAME,
1933                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
1934                                       AuthGroup,
1935                                       SourceName,
1936                                       NULL,
1937                                       &stTargetID,
1938                                       sizeof( AFSEvalTargetCB),
1939                                       pDirEnumCB,
1940                                       &ulResultBufferLength);
1941
1942         if( ntStatus != STATUS_SUCCESS)
1943         {
1944
1945             try_return( ntStatus);
1946         }
1947
1948         //
1949         // Pass back the dir enum entry
1950         //
1951
1952         if( DirEnumEntry != NULL)
1953         {
1954
1955             *DirEnumEntry = pDirEnumCB;
1956         }
1957         else
1958         {
1959
1960             AFSExFreePool( pDirEnumCB);
1961         }
1962
1963 try_exit:
1964
1965         if( !NT_SUCCESS( ntStatus))
1966         {
1967
1968             if( pDirEnumCB != NULL)
1969             {
1970
1971                 AFSExFreePool( pDirEnumCB);
1972             }
1973
1974             *DirEnumEntry = NULL;
1975         }
1976     }
1977
1978     return ntStatus;
1979 }
1980
1981 NTSTATUS
1982 AFSRetrieveVolumeInformation( IN GUID *AuthGroup,
1983                               IN AFSFileID *FileID,
1984                               OUT AFSVolumeInfoCB *VolumeInformation)
1985 {
1986
1987     NTSTATUS ntStatus = STATUS_SUCCESS;
1988     ULONG ulResultLen = 0;
1989
1990     __Enter
1991     {
1992
1993         ulResultLen = sizeof( AFSVolumeInfoCB);
1994
1995         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_GET_VOLUME_INFO,
1996                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
1997                                       AuthGroup,
1998                                       NULL,
1999                                       FileID,
2000                                       NULL,
2001                                       0,
2002                                       VolumeInformation,
2003                                       &ulResultLen);
2004
2005         if( ntStatus != STATUS_SUCCESS)
2006         {
2007
2008             try_return( ntStatus);
2009         }
2010
2011 try_exit:
2012
2013         NOTHING;
2014     }
2015
2016     return ntStatus;
2017 }
2018
2019 NTSTATUS
2020 AFSNotifyPipeTransceive( IN AFSCcb *Ccb,
2021                          IN ULONG InputLength,
2022                          IN ULONG OutputLength,
2023                          IN void *InputDataBuffer,
2024                          OUT void *OutputDataBuffer,
2025                          OUT ULONG *BytesReturned)
2026 {
2027
2028     NTSTATUS ntStatus = STATUS_SUCCESS;
2029     ULONG ulResultLen = 0;
2030     MDL *pInputMdl = NULL, *pOutputMdl = NULL;
2031     void *pInputSystemBuffer = NULL, *pOutputSystemBuffer = NULL;
2032     ULONG ulBufferLength = OutputLength;
2033     AFSPipeIORequestCB *pIoRequest = NULL;
2034     GUID *pAuthGroup = NULL;
2035
2036     __Enter
2037     {
2038
2039         //
2040         // Map the user buffer to a system address
2041         //
2042
2043         pInputSystemBuffer = AFSLockUserBuffer( InputDataBuffer,
2044                                                 InputLength,
2045                                                 &pInputMdl);
2046
2047         if( pInputSystemBuffer == NULL)
2048         {
2049
2050             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2051         }
2052
2053         pIoRequest = (AFSPipeIORequestCB *)AFSExAllocatePoolWithTag( PagedPool,
2054                                                                      sizeof( AFSPipeIORequestCB) +
2055                                                                                 InputLength,
2056                                                                      AFS_GENERIC_MEMORY_4_TAG);
2057
2058         if( pIoRequest == NULL)
2059         {
2060
2061             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2062         }
2063
2064         RtlZeroMemory( pIoRequest,
2065                        sizeof( AFSPipeIORequestCB) + InputLength);
2066
2067         pIoRequest->RequestId = Ccb->RequestID;
2068
2069         pIoRequest->RootId = Ccb->DirectoryCB->ObjectInformation->VolumeCB->ObjectInformation.FileId;
2070
2071         pIoRequest->BufferLength = InputLength;
2072
2073         RtlCopyMemory( (void *)((char *)pIoRequest + sizeof( AFSPipeIORequestCB)),
2074                        pInputSystemBuffer,
2075                        InputLength);
2076
2077         pOutputSystemBuffer = AFSLockUserBuffer( OutputDataBuffer,
2078                                                  OutputLength,
2079                                                  &pOutputMdl);
2080
2081         if( pOutputSystemBuffer == NULL)
2082         {
2083
2084             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2085         }
2086
2087         if( Ccb->DirectoryCB->ObjectInformation->Fcb != NULL)
2088         {
2089             pAuthGroup = &Ccb->DirectoryCB->ObjectInformation->Fcb->AuthGroup;
2090         }
2091
2092         //
2093         // Send the call to the service
2094         //
2095
2096         ulResultLen = OutputLength;
2097
2098         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_PIPE_TRANSCEIVE,
2099                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
2100                                       pAuthGroup,
2101                                       &Ccb->DirectoryCB->NameInformation.FileName,
2102                                       NULL,
2103                                       pIoRequest,
2104                                       sizeof( AFSPipeIORequestCB) + InputLength,
2105                                       pOutputSystemBuffer,
2106                                       &ulResultLen);
2107
2108         if( ntStatus != STATUS_SUCCESS &&
2109             ntStatus != STATUS_BUFFER_OVERFLOW)
2110         {
2111
2112             if( NT_SUCCESS( ntStatus))
2113             {
2114
2115                 ntStatus = STATUS_DEVICE_NOT_READY;
2116             }
2117
2118             try_return( ntStatus);
2119         }
2120
2121         //
2122         // Return the bytes processed
2123         //
2124
2125         *BytesReturned = ulResultLen;
2126
2127 try_exit:
2128
2129         if( pInputMdl != NULL)
2130         {
2131
2132             MmUnlockPages( pInputMdl);
2133
2134             IoFreeMdl( pInputMdl);
2135         }
2136
2137         if( pOutputMdl != NULL)
2138         {
2139
2140             MmUnlockPages( pOutputMdl);
2141
2142             IoFreeMdl( pOutputMdl);
2143         }
2144
2145         if( pIoRequest != NULL)
2146         {
2147
2148             AFSExFreePool( pIoRequest);
2149         }
2150     }
2151
2152     return ntStatus;
2153 }
2154
2155 NTSTATUS
2156 AFSNotifySetPipeInfo( IN AFSCcb *Ccb,
2157                       IN ULONG InformationClass,
2158                       IN ULONG InputLength,
2159                       IN void *DataBuffer)
2160 {
2161
2162     NTSTATUS ntStatus = STATUS_SUCCESS;
2163     AFSPipeInfoRequestCB *pInfoRequest = NULL;
2164     GUID *pAuthGroup = NULL;
2165
2166     __Enter
2167     {
2168
2169         pInfoRequest = (AFSPipeInfoRequestCB *)AFSExAllocatePoolWithTag( PagedPool,
2170                                                                          sizeof( AFSPipeInfoRequestCB) +
2171                                                                                 InputLength,
2172                                                                          AFS_GENERIC_MEMORY_5_TAG);
2173
2174         if( pInfoRequest == NULL)
2175         {
2176
2177             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2178         }
2179
2180         RtlZeroMemory( pInfoRequest,
2181                        sizeof( AFSPipeInfoRequestCB) + InputLength);
2182
2183         pInfoRequest->RequestId = Ccb->RequestID;
2184
2185         pInfoRequest->RootId = Ccb->DirectoryCB->ObjectInformation->VolumeCB->ObjectInformation.FileId;
2186
2187         pInfoRequest->BufferLength = InputLength;
2188
2189         pInfoRequest->InformationClass = InformationClass;
2190
2191         RtlCopyMemory( (void *)((char *)pInfoRequest + sizeof( AFSPipeInfoRequestCB)),
2192                        DataBuffer,
2193                        InputLength);
2194
2195         if( Ccb->DirectoryCB->ObjectInformation->Fcb != NULL)
2196         {
2197             pAuthGroup = &Ccb->DirectoryCB->ObjectInformation->Fcb->AuthGroup;
2198         }
2199
2200         //
2201         // Send the call to the service
2202         //
2203
2204         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_PIPE_SET_INFO,
2205                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
2206                                       pAuthGroup,
2207                                       &Ccb->DirectoryCB->NameInformation.FileName,
2208                                       NULL,
2209                                       pInfoRequest,
2210                                       sizeof( AFSPipeInfoRequestCB) + InputLength,
2211                                       NULL,
2212                                       NULL);
2213
2214         if( ntStatus != STATUS_SUCCESS)
2215         {
2216
2217             if( NT_SUCCESS( ntStatus))
2218             {
2219
2220                 ntStatus = STATUS_DEVICE_NOT_READY;
2221             }
2222
2223             try_return( ntStatus);
2224         }
2225
2226 try_exit:
2227
2228         if( pInfoRequest != NULL)
2229         {
2230
2231             AFSExFreePool( pInfoRequest);
2232         }
2233     }
2234
2235     return ntStatus;
2236 }
2237
2238 NTSTATUS
2239 AFSNotifyQueryPipeInfo( IN AFSCcb *Ccb,
2240                         IN ULONG InformationClass,
2241                         IN ULONG OutputLength,
2242                         IN void *DataBuffer,
2243                         OUT ULONG *BytesReturned)
2244 {
2245
2246     NTSTATUS ntStatus = STATUS_SUCCESS;
2247     AFSPipeInfoRequestCB stInfoRequest;
2248     ULONG ulBytesProcessed = 0;
2249     GUID *pAuthGroup = NULL;
2250
2251     __Enter
2252     {
2253
2254         RtlZeroMemory( &stInfoRequest,
2255                        sizeof( AFSPipeInfoRequestCB));
2256
2257         stInfoRequest.RequestId = Ccb->RequestID;
2258
2259         stInfoRequest.RootId = Ccb->DirectoryCB->ObjectInformation->VolumeCB->ObjectInformation.FileId;
2260
2261         stInfoRequest.BufferLength = OutputLength;
2262
2263         stInfoRequest.InformationClass = InformationClass;
2264
2265         ulBytesProcessed = OutputLength;
2266
2267         if( Ccb->DirectoryCB->ObjectInformation->Fcb != NULL)
2268         {
2269             pAuthGroup = &Ccb->DirectoryCB->ObjectInformation->Fcb->AuthGroup;
2270         }
2271
2272         //
2273         // Send the call to the service
2274         //
2275
2276         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_PIPE_QUERY_INFO,
2277                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
2278                                       pAuthGroup,
2279                                       &Ccb->DirectoryCB->NameInformation.FileName,
2280                                       NULL,
2281                                       &stInfoRequest,
2282                                       sizeof( AFSPipeInfoRequestCB),
2283                                       DataBuffer,
2284                                       &ulBytesProcessed);
2285
2286         if( ntStatus != STATUS_SUCCESS)
2287         {
2288
2289             if( NT_SUCCESS( ntStatus))
2290             {
2291
2292                 ntStatus = STATUS_DEVICE_NOT_READY;
2293             }
2294
2295             try_return( ntStatus);
2296         }
2297
2298         *BytesReturned = ulBytesProcessed;
2299
2300 try_exit:
2301
2302         NOTHING;
2303     }
2304
2305     return ntStatus;
2306 }
2307
2308 NTSTATUS
2309 AFSReleaseFid( IN AFSFileID *FileId)
2310 {
2311
2312     NTSTATUS ntStatus = STATUS_SUCCESS;
2313
2314     __Enter
2315     {
2316
2317         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_RELEASE_FID,
2318                                       0,
2319                                       NULL,
2320                                       NULL,
2321                                       FileId,
2322                                       NULL,
2323                                       0,
2324                                       NULL,
2325                                       NULL);
2326     }
2327
2328     return ntStatus;
2329 }
2330
2331 BOOLEAN
2332 AFSIsExtentRequestQueued( IN AFSFileID *FileID,
2333                           IN LARGE_INTEGER *ExtentOffset,
2334                           IN ULONG Length)
2335 {
2336
2337     BOOLEAN bRequestQueued = FALSE;
2338     NTSTATUS ntStatus = STATUS_SUCCESS;
2339     AFSDeviceExt    *pControlDevExt = (AFSDeviceExt *)AFSControlDeviceObject->DeviceExtension;
2340     AFSCommSrvcCB   *pCommSrvc = NULL;
2341     AFSPoolEntry    *pPoolEntry = NULL;
2342     AFSRequestExtentsCB *pRequestExtents = NULL;
2343
2344     __Enter
2345     {
2346
2347
2348         pCommSrvc = &pControlDevExt->Specific.Control.CommServiceCB;
2349
2350         AFSAcquireShared( &pCommSrvc->IrpPoolLock,
2351                           TRUE);
2352
2353         pPoolEntry = pCommSrvc->RequestPoolHead;
2354
2355         while( pPoolEntry != NULL)
2356         {
2357
2358             if( pPoolEntry->RequestType == AFS_REQUEST_TYPE_REQUEST_FILE_EXTENTS)
2359             {
2360
2361                 if( AFSIsEqualFID( &pPoolEntry->FileId, FileID))
2362                 {
2363
2364                     pRequestExtents = (AFSRequestExtentsCB *)pPoolEntry->Data;
2365
2366                     if( pRequestExtents->ByteOffset.QuadPart == ExtentOffset->QuadPart &&
2367                         pRequestExtents->Length == Length)
2368                     {
2369
2370                         bRequestQueued = TRUE;
2371                     }
2372                 }
2373             }
2374
2375             pPoolEntry = pPoolEntry->fLink;
2376         }
2377
2378         AFSReleaseResource( &pCommSrvc->IrpPoolLock);
2379     }
2380
2381     return bRequestQueued;
2382 }