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             if( pDirNode != NULL)
1329             {
1330
1331                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1332                               AFS_TRACE_LEVEL_VERBOSE,
1333                               "AFSNotifyFileCreate Located dir entry for file %wZ\n",
1334                               FileName);
1335
1336                 InterlockedIncrement( &pDirNode->OpenReferenceCount);
1337
1338                 AFSDbgLogMsg( AFS_SUBSYSTEM_DIRENTRY_REF_COUNTING,
1339                               AFS_TRACE_LEVEL_VERBOSE,
1340                               "AFSNotifyFileCreate Increment count on %wZ DE %p Cnt %d\n",
1341                               &pDirNode->NameInformation.FileName,
1342                               pDirNode,
1343                               pDirNode->OpenReferenceCount);
1344
1345                 *DirNode = pDirNode;
1346
1347                 AFSReleaseResource( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
1348
1349                 try_return( ntStatus = STATUS_REPARSE);
1350             }
1351
1352             AFSReleaseResource( ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.TreeLock);
1353
1354             //
1355             // We are unsure of our current data so set the verify flag. It may already be set
1356             // but no big deal to reset it
1357             //
1358
1359             SetFlag( ParentObjectInfo->Flags, AFS_OBJECT_FLAGS_VERIFY);
1360
1361             ParentObjectInfo->DataVersion.QuadPart = (ULONGLONG)-1;
1362         }
1363         else
1364         {
1365
1366             //
1367             // Update the parent data version
1368             //
1369
1370             ParentObjectInfo->DataVersion = pResultCB->ParentDataVersion;
1371         }
1372
1373         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1374                       AFS_TRACE_LEVEL_VERBOSE,
1375                       "AFSNotifyFileCreate Creating new entry %wZ\n",
1376                       FileName);
1377
1378         //
1379         // Initialize the directory entry
1380         //
1381
1382         uniTargetName.Length = (USHORT)pResultCB->DirEnum.TargetNameLength;
1383
1384         uniTargetName.MaximumLength = uniTargetName.Length;
1385
1386         uniTargetName.Buffer = (WCHAR *)((char *)&pResultCB->DirEnum + pResultCB->DirEnum.TargetNameOffset);
1387
1388         pDirNode = AFSInitDirEntry( ParentObjectInfo,
1389                                     FileName,
1390                                     &uniTargetName,
1391                                     &pResultCB->DirEnum,
1392                                     (ULONG)InterlockedIncrement( &ParentObjectInfo->Specific.Directory.DirectoryNodeHdr.ContentIndex));
1393
1394         if( pDirNode == NULL)
1395         {
1396
1397             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
1398         }
1399
1400         //
1401         // Init the short name if we have one
1402         //
1403
1404         if( pResultCB->DirEnum.ShortNameLength > 0)
1405         {
1406
1407             UNICODE_STRING uniShortName;
1408
1409             pDirNode->NameInformation.ShortNameLength = pResultCB->DirEnum.ShortNameLength;
1410
1411             RtlCopyMemory( pDirNode->NameInformation.ShortName,
1412                            pResultCB->DirEnum.ShortName,
1413                            pDirNode->NameInformation.ShortNameLength);
1414
1415             //
1416             // Generate the short name index
1417             //
1418
1419             uniShortName.Length = pDirNode->NameInformation.ShortNameLength;
1420             uniShortName.Buffer = pDirNode->NameInformation.ShortName;
1421
1422             pDirNode->Type.Data.ShortNameTreeEntry.HashIndex = AFSGenerateCRC( &uniShortName,
1423                                                                                TRUE);
1424
1425             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1426                           AFS_TRACE_LEVEL_VERBOSE,
1427                           "AFSNotifyFileCreate Initialized short name %wZ for DE %p for %wZ\n",
1428                           &uniShortName,
1429                           pDirNode,
1430                           &pDirNode->NameInformation.FileName);
1431         }
1432
1433         //
1434         // Return the directory node
1435         //
1436
1437         *DirNode = pDirNode;
1438
1439 try_exit:
1440
1441         if( pResultCB != NULL)
1442         {
1443
1444             AFSExFreePool( pResultCB);
1445         }
1446     }
1447
1448     return ntStatus;
1449 }
1450
1451 NTSTATUS
1452 AFSUpdateFileInformation( IN AFSFileID *ParentFid,
1453                           IN AFSObjectInfoCB *ObjectInfo,
1454                           IN GUID *AuthGroup)
1455 {
1456
1457     NTSTATUS ntStatus = STATUS_SUCCESS;
1458     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1459     AFSFileUpdateCB stUpdateCB;
1460     ULONG ulResultLen = 0;
1461     AFSFileUpdateResultCB *pUpdateResultCB = NULL;
1462
1463     __Enter
1464     {
1465
1466         //
1467         // Init the control block for the request
1468         //
1469
1470         RtlZeroMemory( &stUpdateCB,
1471                        sizeof( AFSFileUpdateCB));
1472
1473         stUpdateCB.AllocationSize = ObjectInfo->EndOfFile;
1474
1475         stUpdateCB.FileAttributes = ObjectInfo->FileAttributes;
1476
1477         stUpdateCB.EaSize = ObjectInfo->EaSize;
1478
1479         stUpdateCB.ParentId = *ParentFid;
1480
1481         stUpdateCB.LastAccessTime = ObjectInfo->LastAccessTime;
1482
1483         stUpdateCB.CreateTime = ObjectInfo->CreationTime;
1484
1485         stUpdateCB.ChangeTime = ObjectInfo->ChangeTime;
1486
1487         stUpdateCB.LastWriteTime = ObjectInfo->LastWriteTime;
1488
1489         pUpdateResultCB = (AFSFileUpdateResultCB *)AFSExAllocatePoolWithTag( PagedPool,
1490                                                                              PAGE_SIZE,
1491                                                                              AFS_UPDATE_RESULT_TAG);
1492
1493         if( pUpdateResultCB == NULL)
1494         {
1495
1496             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
1497         }
1498
1499         ulResultLen = PAGE_SIZE;
1500
1501         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_UPDATE_FILE,
1502                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
1503                                       AuthGroup,
1504                                       NULL,
1505                                       &ObjectInfo->FileId,
1506                                       &stUpdateCB,
1507                                       sizeof( AFSFileUpdateCB),
1508                                       pUpdateResultCB,
1509                                       &ulResultLen);
1510
1511         if( ntStatus != STATUS_SUCCESS)
1512         {
1513
1514             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1515                           AFS_TRACE_LEVEL_ERROR,
1516                           "AFSUpdateFileInformation failed FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1517                           ObjectInfo->FileId.Cell,
1518                           ObjectInfo->FileId.Volume,
1519                           ObjectInfo->FileId.Vnode,
1520                           ObjectInfo->FileId.Unique,
1521                           ntStatus);
1522
1523             try_return( ntStatus);
1524         }
1525
1526         //
1527         // Update the data version
1528         //
1529
1530         ObjectInfo->DataVersion = pUpdateResultCB->DirEnum.DataVersion;
1531
1532 try_exit:
1533
1534         if( pUpdateResultCB != NULL)
1535         {
1536
1537             AFSExFreePool( pUpdateResultCB);
1538         }
1539     }
1540
1541     return ntStatus;
1542 }
1543
1544 NTSTATUS
1545 AFSNotifyDelete( IN AFSDirectoryCB *DirectoryCB,
1546                  IN GUID           *AuthGroup,
1547                  IN BOOLEAN         CheckOnly)
1548 {
1549     NTSTATUS ntStatus = STATUS_SUCCESS;
1550     ULONG ulResultLen = 0;
1551     AFSFileDeleteCB stDelete;
1552     AFSFileDeleteResultCB stDeleteResult;
1553     ULONG ulRequestFlags = AFS_REQUEST_FLAG_SYNCHRONOUS;
1554
1555     __Enter
1556     {
1557
1558         stDelete.ParentId = DirectoryCB->ObjectInformation->ParentObjectInformation->FileId;
1559
1560         stDelete.ProcessId = (ULONGLONG)PsGetCurrentProcessId();
1561
1562         ulResultLen = sizeof( AFSFileDeleteResultCB);
1563
1564         if( CheckOnly)
1565         {
1566             ulRequestFlags |= AFS_REQUEST_FLAG_CHECK_ONLY;
1567         }
1568
1569         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_DELETE_FILE,
1570                                       ulRequestFlags,
1571                                       AuthGroup,
1572                                       &DirectoryCB->NameInformation.FileName,
1573                                       &DirectoryCB->ObjectInformation->FileId,
1574                                       &stDelete,
1575                                       sizeof( AFSFileDeleteCB),
1576                                       &stDeleteResult,
1577                                       &ulResultLen);
1578
1579         if( ntStatus != STATUS_SUCCESS)
1580         {
1581
1582             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1583                           AFS_TRACE_LEVEL_ERROR,
1584                           "AFSNotifyDelete failed FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1585                           &DirectoryCB->ObjectInformation->FileId.Cell,
1586                           &DirectoryCB->ObjectInformation->FileId.Volume,
1587                           &DirectoryCB->ObjectInformation->FileId.Vnode,
1588                           &DirectoryCB->ObjectInformation->FileId.Unique,
1589                           ntStatus);
1590
1591             try_return( ntStatus);
1592         }
1593
1594         if( !CheckOnly)
1595         {
1596
1597             //
1598             // Update the parent data version
1599             //
1600
1601             if( DirectoryCB->ObjectInformation->ParentObjectInformation->DataVersion.QuadPart != stDeleteResult.ParentDataVersion.QuadPart)
1602             {
1603
1604                 SetFlag( DirectoryCB->ObjectInformation->ParentObjectInformation->Flags, AFS_OBJECT_FLAGS_VERIFY);
1605
1606                 DirectoryCB->ObjectInformation->ParentObjectInformation->DataVersion.QuadPart = (ULONGLONG)-1;
1607             }
1608         }
1609
1610 try_exit:
1611
1612         NOTHING;
1613     }
1614
1615     return ntStatus;
1616 }
1617
1618 NTSTATUS
1619 AFSNotifyRename( IN AFSObjectInfoCB *ObjectInfo,
1620                  IN GUID            *AuthGroup,
1621                  IN AFSObjectInfoCB *ParentObjectInfo,
1622                  IN AFSObjectInfoCB *TargetParentObjectInfo,
1623                  IN AFSDirectoryCB *DirectoryCB,
1624                  IN UNICODE_STRING *TargetName,
1625                  OUT AFSFileID  *UpdatedFID)
1626 {
1627
1628     NTSTATUS ntStatus = STATUS_SUCCESS;
1629     AFSFileRenameCB *pRenameCB = NULL;
1630     AFSFileRenameResultCB *pRenameResultCB = NULL;
1631     ULONG ulResultLen = 0;
1632
1633     __Enter
1634     {
1635
1636         //
1637         // Init the control block for the request
1638         //
1639
1640         pRenameCB = (AFSFileRenameCB *)AFSExAllocatePoolWithTag( PagedPool,
1641                                                                  PAGE_SIZE,
1642                                                                  AFS_RENAME_REQUEST_TAG);
1643
1644         if( pRenameCB == NULL)
1645         {
1646
1647             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
1648         }
1649
1650         RtlZeroMemory( pRenameCB,
1651                        PAGE_SIZE);
1652
1653         pRenameCB->SourceParentId = ParentObjectInfo->FileId;
1654
1655         pRenameCB->TargetParentId = TargetParentObjectInfo->FileId;
1656
1657         pRenameCB->TargetNameLength = TargetName->Length;
1658
1659         RtlCopyMemory( pRenameCB->TargetName,
1660                        TargetName->Buffer,
1661                        TargetName->Length);
1662
1663         //
1664         // Use the same buffer for the result control block
1665         //
1666
1667         pRenameResultCB = (AFSFileRenameResultCB *)pRenameCB;
1668
1669         ulResultLen = PAGE_SIZE;
1670
1671         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_RENAME_FILE,
1672                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
1673                                       AuthGroup,
1674                                       &DirectoryCB->NameInformation.FileName,
1675                                       &ObjectInfo->FileId,
1676                                       pRenameCB,
1677                                       sizeof( AFSFileRenameCB) + TargetName->Length,
1678                                       pRenameResultCB,
1679                                       &ulResultLen);
1680
1681         if( ntStatus != STATUS_SUCCESS)
1682         {
1683
1684             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1685                           AFS_TRACE_LEVEL_ERROR,
1686                           "AFSNotifyRename failed FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
1687                           ObjectInfo->FileId.Cell,
1688                           ObjectInfo->FileId.Volume,
1689                           ObjectInfo->FileId.Vnode,
1690                           ObjectInfo->FileId.Unique,
1691                           ntStatus);
1692
1693             try_return( ntStatus);
1694         }
1695
1696         //
1697         // Update the information from the returned data
1698         //
1699
1700         ParentObjectInfo->DataVersion = pRenameResultCB->SourceParentDataVersion;
1701
1702         TargetParentObjectInfo->DataVersion = pRenameResultCB->TargetParentDataVersion;
1703
1704         //
1705         // Move over the short name
1706         //
1707
1708         DirectoryCB->NameInformation.ShortNameLength = pRenameResultCB->DirEnum.ShortNameLength;
1709
1710         if( DirectoryCB->NameInformation.ShortNameLength > 0)
1711         {
1712
1713             UNICODE_STRING uniShortName;
1714
1715             uniShortName.Length = DirectoryCB->NameInformation.ShortNameLength;
1716             uniShortName.MaximumLength = uniShortName.Length;
1717             uniShortName.Buffer = DirectoryCB->NameInformation.ShortName;
1718
1719             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1720                           AFS_TRACE_LEVEL_VERBOSE,
1721                           "AFSNotifyRename Update old short name %wZ for DE %p for %wZ\n",
1722                           &uniShortName,
1723                           DirectoryCB,
1724                           &DirectoryCB->NameInformation.FileName);
1725
1726             DirectoryCB->NameInformation.ShortNameLength = pRenameResultCB->DirEnum.ShortNameLength;
1727
1728             RtlCopyMemory( DirectoryCB->NameInformation.ShortName,
1729                            pRenameResultCB->DirEnum.ShortName,
1730                            DirectoryCB->NameInformation.ShortNameLength);
1731
1732             uniShortName.Length = DirectoryCB->NameInformation.ShortNameLength;
1733             uniShortName.MaximumLength = uniShortName.Length;
1734             uniShortName.Buffer = DirectoryCB->NameInformation.ShortName;
1735
1736             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1737                           AFS_TRACE_LEVEL_VERBOSE,
1738                           "AFSNotifyRename Initialized short name %wZ for DE %p for %wZ\n",
1739                           &uniShortName,
1740                           DirectoryCB,
1741                           &DirectoryCB->NameInformation.FileName);
1742         }
1743         else
1744         {
1745
1746             UNICODE_STRING uniShortName;
1747
1748             uniShortName.Length = DirectoryCB->NameInformation.ShortNameLength;
1749             uniShortName.MaximumLength = uniShortName.Length;
1750             uniShortName.Buffer = DirectoryCB->NameInformation.ShortName;
1751
1752             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1753                           AFS_TRACE_LEVEL_VERBOSE,
1754                           "AFSNotifyRename Removing old short name %wZ for DE %p for %wZ\n",
1755                           &uniShortName,
1756                           DirectoryCB,
1757                           &DirectoryCB->NameInformation.FileName);
1758
1759             DirectoryCB->NameInformation.ShortNameLength = 0;
1760
1761             DirectoryCB->Type.Data.ShortNameTreeEntry.HashIndex = 0;
1762         }
1763
1764         if( UpdatedFID != NULL)
1765         {
1766             *UpdatedFID = pRenameResultCB->DirEnum.FileId;
1767         }
1768
1769 try_exit:
1770
1771         if( pRenameCB != NULL)
1772         {
1773
1774             AFSExFreePool( pRenameCB);
1775         }
1776     }
1777
1778     return ntStatus;
1779 }
1780
1781 NTSTATUS
1782 AFSEvaluateTargetByID( IN AFSObjectInfoCB *ObjectInfo,
1783                        IN GUID *AuthGroup,
1784                        IN BOOLEAN FastCall,
1785                        OUT AFSDirEnumEntry **DirEnumEntry)
1786 {
1787
1788     NTSTATUS ntStatus = STATUS_SUCCESS;
1789     AFSEvalTargetCB stTargetID;
1790     ULONG ulResultBufferLength;
1791     AFSDirEnumEntry *pDirEnumCB = NULL;
1792     ULONG ulRequestFlags = AFS_REQUEST_FLAG_SYNCHRONOUS;
1793
1794     __Enter
1795     {
1796
1797         RtlZeroMemory( &stTargetID,
1798                        sizeof( AFSEvalTargetCB));
1799
1800         if( ObjectInfo->ParentObjectInformation != NULL)
1801         {
1802
1803             stTargetID.ParentId = ObjectInfo->ParentObjectInformation->FileId;
1804         }
1805
1806         //
1807         // Allocate our response buffer
1808         //
1809
1810         pDirEnumCB = (AFSDirEnumEntry *)AFSExAllocatePoolWithTag( PagedPool,
1811                                                                   PAGE_SIZE,
1812                                                                   AFS_GENERIC_MEMORY_2_TAG);
1813
1814         if( pDirEnumCB == NULL)
1815         {
1816
1817             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
1818         }
1819
1820         //
1821         // Call to the service to evaluate the fid
1822         //
1823
1824         ulResultBufferLength = PAGE_SIZE;
1825
1826         if( FastCall)
1827         {
1828
1829             ulRequestFlags |= AFS_REQUEST_FLAG_FAST_REQUEST;
1830         }
1831
1832         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_EVAL_TARGET_BY_ID,
1833                                       ulRequestFlags,
1834                                       AuthGroup,
1835                                       NULL,
1836                                       &ObjectInfo->FileId,
1837                                       &stTargetID,
1838                                       sizeof( AFSEvalTargetCB),
1839                                       pDirEnumCB,
1840                                       &ulResultBufferLength);
1841
1842         if( ntStatus != STATUS_SUCCESS)
1843         {
1844
1845             //
1846             // If we received back a STATUS_INVALID_HANDLE then mark the parent as requiring
1847             // verification
1848             //
1849
1850             if( ntStatus == STATUS_INVALID_HANDLE)
1851             {
1852
1853                 if( ObjectInfo->ParentObjectInformation != NULL)
1854                 {
1855
1856                     SetFlag( ObjectInfo->ParentObjectInformation->Flags, AFS_OBJECT_FLAGS_VERIFY);
1857                 }
1858             }
1859
1860             try_return( ntStatus);
1861         }
1862
1863         //
1864         // Pass back the dir enum entry
1865         //
1866
1867         if( DirEnumEntry != NULL)
1868         {
1869
1870             *DirEnumEntry = pDirEnumCB;
1871         }
1872         else
1873         {
1874
1875             AFSExFreePool( pDirEnumCB);
1876         }
1877
1878 try_exit:
1879
1880         if( !NT_SUCCESS( ntStatus))
1881         {
1882
1883             if( pDirEnumCB != NULL)
1884             {
1885
1886                 AFSExFreePool( pDirEnumCB);
1887             }
1888
1889             *DirEnumEntry = NULL;
1890         }
1891     }
1892
1893     return ntStatus;
1894 }
1895
1896 NTSTATUS
1897 AFSEvaluateTargetByName( IN GUID *AuthGroup,
1898                          IN AFSFileID *ParentFileId,
1899                          IN PUNICODE_STRING SourceName,
1900                          OUT AFSDirEnumEntry **DirEnumEntry)
1901 {
1902
1903     NTSTATUS ntStatus = STATUS_SUCCESS;
1904     AFSEvalTargetCB stTargetID;
1905     ULONG ulResultBufferLength;
1906     AFSDirEnumEntry *pDirEnumCB = NULL;
1907
1908     __Enter
1909     {
1910
1911         stTargetID.ParentId = *ParentFileId;
1912
1913         //
1914         // Allocate our response buffer
1915         //
1916
1917         pDirEnumCB = (AFSDirEnumEntry *)AFSExAllocatePoolWithTag( PagedPool,
1918                                                                   PAGE_SIZE,
1919                                                                   AFS_GENERIC_MEMORY_3_TAG);
1920
1921         if( pDirEnumCB == NULL)
1922         {
1923
1924             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
1925         }
1926
1927         //
1928         // Call to the service to evaluate the fid
1929         //
1930
1931         ulResultBufferLength = PAGE_SIZE;
1932
1933         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_EVAL_TARGET_BY_NAME,
1934                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
1935                                       AuthGroup,
1936                                       SourceName,
1937                                       NULL,
1938                                       &stTargetID,
1939                                       sizeof( AFSEvalTargetCB),
1940                                       pDirEnumCB,
1941                                       &ulResultBufferLength);
1942
1943         if( ntStatus != STATUS_SUCCESS)
1944         {
1945
1946             try_return( ntStatus);
1947         }
1948
1949         //
1950         // Pass back the dir enum entry
1951         //
1952
1953         if( DirEnumEntry != NULL)
1954         {
1955
1956             *DirEnumEntry = pDirEnumCB;
1957         }
1958         else
1959         {
1960
1961             AFSExFreePool( pDirEnumCB);
1962         }
1963
1964 try_exit:
1965
1966         if( !NT_SUCCESS( ntStatus))
1967         {
1968
1969             if( pDirEnumCB != NULL)
1970             {
1971
1972                 AFSExFreePool( pDirEnumCB);
1973             }
1974
1975             *DirEnumEntry = NULL;
1976         }
1977     }
1978
1979     return ntStatus;
1980 }
1981
1982 NTSTATUS
1983 AFSRetrieveVolumeInformation( IN GUID *AuthGroup,
1984                               IN AFSFileID *FileID,
1985                               OUT AFSVolumeInfoCB *VolumeInformation)
1986 {
1987
1988     NTSTATUS ntStatus = STATUS_SUCCESS;
1989     ULONG ulResultLen = 0;
1990
1991     __Enter
1992     {
1993
1994         ulResultLen = sizeof( AFSVolumeInfoCB);
1995
1996         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_GET_VOLUME_INFO,
1997                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
1998                                       AuthGroup,
1999                                       NULL,
2000                                       FileID,
2001                                       NULL,
2002                                       0,
2003                                       VolumeInformation,
2004                                       &ulResultLen);
2005
2006         if( ntStatus != STATUS_SUCCESS)
2007         {
2008
2009             try_return( ntStatus);
2010         }
2011
2012 try_exit:
2013
2014         NOTHING;
2015     }
2016
2017     return ntStatus;
2018 }
2019
2020 NTSTATUS
2021 AFSNotifyPipeTransceive( IN AFSCcb *Ccb,
2022                          IN ULONG InputLength,
2023                          IN ULONG OutputLength,
2024                          IN void *InputDataBuffer,
2025                          OUT void *OutputDataBuffer,
2026                          OUT ULONG *BytesReturned)
2027 {
2028
2029     NTSTATUS ntStatus = STATUS_SUCCESS;
2030     ULONG ulResultLen = 0;
2031     MDL *pInputMdl = NULL, *pOutputMdl = NULL;
2032     void *pInputSystemBuffer = NULL, *pOutputSystemBuffer = NULL;
2033     ULONG ulBufferLength = OutputLength;
2034     AFSPipeIORequestCB *pIoRequest = 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         //
2088         // Send the call to the service
2089         //
2090
2091         ulResultLen = OutputLength;
2092
2093         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_PIPE_TRANSCEIVE,
2094                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
2095                                       &Ccb->AuthGroup,
2096                                       &Ccb->DirectoryCB->NameInformation.FileName,
2097                                       NULL,
2098                                       pIoRequest,
2099                                       sizeof( AFSPipeIORequestCB) + InputLength,
2100                                       pOutputSystemBuffer,
2101                                       &ulResultLen);
2102
2103         if( ntStatus != STATUS_SUCCESS &&
2104             ntStatus != STATUS_BUFFER_OVERFLOW)
2105         {
2106
2107             if( NT_SUCCESS( ntStatus))
2108             {
2109
2110                 ntStatus = STATUS_DEVICE_NOT_READY;
2111             }
2112
2113             try_return( ntStatus);
2114         }
2115
2116         //
2117         // Return the bytes processed
2118         //
2119
2120         *BytesReturned = ulResultLen;
2121
2122 try_exit:
2123
2124         if( pInputMdl != NULL)
2125         {
2126
2127             MmUnlockPages( pInputMdl);
2128
2129             IoFreeMdl( pInputMdl);
2130         }
2131
2132         if( pOutputMdl != NULL)
2133         {
2134
2135             MmUnlockPages( pOutputMdl);
2136
2137             IoFreeMdl( pOutputMdl);
2138         }
2139
2140         if( pIoRequest != NULL)
2141         {
2142
2143             AFSExFreePool( pIoRequest);
2144         }
2145     }
2146
2147     return ntStatus;
2148 }
2149
2150 NTSTATUS
2151 AFSNotifySetPipeInfo( IN AFSCcb *Ccb,
2152                       IN ULONG InformationClass,
2153                       IN ULONG InputLength,
2154                       IN void *DataBuffer)
2155 {
2156
2157     NTSTATUS ntStatus = STATUS_SUCCESS;
2158     AFSPipeInfoRequestCB *pInfoRequest = NULL;
2159
2160     __Enter
2161     {
2162
2163         pInfoRequest = (AFSPipeInfoRequestCB *)AFSExAllocatePoolWithTag( PagedPool,
2164                                                                          sizeof( AFSPipeInfoRequestCB) +
2165                                                                                 InputLength,
2166                                                                          AFS_GENERIC_MEMORY_5_TAG);
2167
2168         if( pInfoRequest == NULL)
2169         {
2170
2171             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2172         }
2173
2174         RtlZeroMemory( pInfoRequest,
2175                        sizeof( AFSPipeInfoRequestCB) + InputLength);
2176
2177         pInfoRequest->RequestId = Ccb->RequestID;
2178
2179         pInfoRequest->RootId = Ccb->DirectoryCB->ObjectInformation->VolumeCB->ObjectInformation.FileId;
2180
2181         pInfoRequest->BufferLength = InputLength;
2182
2183         pInfoRequest->InformationClass = InformationClass;
2184
2185         RtlCopyMemory( (void *)((char *)pInfoRequest + sizeof( AFSPipeInfoRequestCB)),
2186                        DataBuffer,
2187                        InputLength);
2188
2189         //
2190         // Send the call to the service
2191         //
2192
2193         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_PIPE_SET_INFO,
2194                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
2195                                       &Ccb->AuthGroup,
2196                                       &Ccb->DirectoryCB->NameInformation.FileName,
2197                                       NULL,
2198                                       pInfoRequest,
2199                                       sizeof( AFSPipeInfoRequestCB) + InputLength,
2200                                       NULL,
2201                                       NULL);
2202
2203         if( ntStatus != STATUS_SUCCESS)
2204         {
2205
2206             if( NT_SUCCESS( ntStatus))
2207             {
2208
2209                 ntStatus = STATUS_DEVICE_NOT_READY;
2210             }
2211
2212             try_return( ntStatus);
2213         }
2214
2215 try_exit:
2216
2217         if( pInfoRequest != NULL)
2218         {
2219
2220             AFSExFreePool( pInfoRequest);
2221         }
2222     }
2223
2224     return ntStatus;
2225 }
2226
2227 NTSTATUS
2228 AFSNotifyQueryPipeInfo( IN AFSCcb *Ccb,
2229                         IN ULONG InformationClass,
2230                         IN ULONG OutputLength,
2231                         IN void *DataBuffer,
2232                         OUT ULONG *BytesReturned)
2233 {
2234
2235     NTSTATUS ntStatus = STATUS_SUCCESS;
2236     AFSPipeInfoRequestCB stInfoRequest;
2237     ULONG ulBytesProcessed = 0;
2238
2239     __Enter
2240     {
2241
2242         RtlZeroMemory( &stInfoRequest,
2243                        sizeof( AFSPipeInfoRequestCB));
2244
2245         stInfoRequest.RequestId = Ccb->RequestID;
2246
2247         stInfoRequest.RootId = Ccb->DirectoryCB->ObjectInformation->VolumeCB->ObjectInformation.FileId;
2248
2249         stInfoRequest.BufferLength = OutputLength;
2250
2251         stInfoRequest.InformationClass = InformationClass;
2252
2253         ulBytesProcessed = OutputLength;
2254
2255         //
2256         // Send the call to the service
2257         //
2258
2259         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_PIPE_QUERY_INFO,
2260                                       AFS_REQUEST_FLAG_SYNCHRONOUS,
2261                                       &Ccb->AuthGroup,
2262                                       &Ccb->DirectoryCB->NameInformation.FileName,
2263                                       NULL,
2264                                       &stInfoRequest,
2265                                       sizeof( AFSPipeInfoRequestCB),
2266                                       DataBuffer,
2267                                       &ulBytesProcessed);
2268
2269         if( ntStatus != STATUS_SUCCESS)
2270         {
2271
2272             if( NT_SUCCESS( ntStatus))
2273             {
2274
2275                 ntStatus = STATUS_DEVICE_NOT_READY;
2276             }
2277
2278             try_return( ntStatus);
2279         }
2280
2281         *BytesReturned = ulBytesProcessed;
2282
2283 try_exit:
2284
2285         NOTHING;
2286     }
2287
2288     return ntStatus;
2289 }
2290
2291 NTSTATUS
2292 AFSReleaseFid( IN AFSFileID *FileId)
2293 {
2294
2295     NTSTATUS ntStatus = STATUS_SUCCESS;
2296
2297     __Enter
2298     {
2299
2300         ntStatus = AFSProcessRequest( AFS_REQUEST_TYPE_RELEASE_FID,
2301                                       0,
2302                                       NULL,
2303                                       NULL,
2304                                       FileId,
2305                                       NULL,
2306                                       0,
2307                                       NULL,
2308                                       NULL);
2309     }
2310
2311     return ntStatus;
2312 }
2313
2314 BOOLEAN
2315 AFSIsExtentRequestQueued( IN AFSFileID *FileID,
2316                           IN LARGE_INTEGER *ExtentOffset,
2317                           IN ULONG Length)
2318 {
2319
2320     BOOLEAN bRequestQueued = FALSE;
2321     NTSTATUS ntStatus = STATUS_SUCCESS;
2322     AFSDeviceExt    *pControlDevExt = (AFSDeviceExt *)AFSControlDeviceObject->DeviceExtension;
2323     AFSCommSrvcCB   *pCommSrvc = NULL;
2324     AFSPoolEntry    *pPoolEntry = NULL;
2325     AFSRequestExtentsCB *pRequestExtents = NULL;
2326
2327     __Enter
2328     {
2329
2330
2331         pCommSrvc = &pControlDevExt->Specific.Control.CommServiceCB;
2332
2333         AFSAcquireShared( &pCommSrvc->IrpPoolLock,
2334                           TRUE);
2335
2336         pPoolEntry = pCommSrvc->RequestPoolHead;
2337
2338         while( pPoolEntry != NULL)
2339         {
2340
2341             if( pPoolEntry->RequestType == AFS_REQUEST_TYPE_REQUEST_FILE_EXTENTS)
2342             {
2343
2344                 if( AFSIsEqualFID( &pPoolEntry->FileId, FileID))
2345                 {
2346
2347                     pRequestExtents = (AFSRequestExtentsCB *)pPoolEntry->Data;
2348
2349                     if( pRequestExtents->ByteOffset.QuadPart == ExtentOffset->QuadPart &&
2350                         pRequestExtents->Length == Length)
2351                     {
2352
2353                         bRequestQueued = TRUE;
2354                     }
2355                 }
2356             }
2357
2358             pPoolEntry = pPoolEntry->fLink;
2359         }
2360
2361         AFSReleaseResource( &pCommSrvc->IrpPoolLock);
2362     }
2363
2364     return bRequestQueued;
2365 }