src/WINNT/afsrdr/kernel/lib/AFSFileInfo.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: AFSFileInfo.cpp
  37 //
  38
  39 #include "AFSCommon.h"
  40
  41 //
  42 // Function: AFSQueryFileInfo
  43 //
  44 // Description:
  45 //
  46 //      This function is the dispatch handler for the IRP_MJ_QUERY_FILE_INFORMATION request
  47 //
  48 // Return:
  49 //
  50 //      A status is returned for the function
  51 //
  52
  53 NTSTATUS
  54 AFSQueryFileInfo( IN PDEVICE_OBJECT LibDeviceObject,
  55                   IN PIRP Irp)
  56 {
  57
  58     NTSTATUS ntStatus = STATUS_SUCCESS;
  59     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
  60     ULONG ulRequestType = 0;
  61     IO_STACK_LOCATION *pIrpSp = IoGetCurrentIrpStackLocation( Irp);
  62     AFSFcb *pFcb = NULL;
  63     AFSCcb *pCcb = NULL;
  64     PFILE_OBJECT pFileObject;
  65     BOOLEAN bReleaseMain = FALSE;
  66     LONG lLength;
  67     FILE_INFORMATION_CLASS stFileInformationClass;
  68     PVOID pBuffer;
  69
  70     __try
  71     {
  72
  73         //
  74         // Determine the type of request this request is
  75         //
  76
  77         pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
  78
  79         pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
  80
  81         if( pFcb == NULL)
  82         {
  83
  84             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
  85                           AFS_TRACE_LEVEL_ERROR,
  86                           "AFSQueryFileInfo Attempted access (%08lX) when pFcb == NULL\n",
  87                           Irp);
  88
  89             try_return( ntStatus = STATUS_INVALID_DEVICE_REQUEST);
  90         }
  91
  92         lLength = (LONG)pIrpSp->Parameters.QueryFile.Length;
  93         stFileInformationClass = pIrpSp->Parameters.QueryFile.FileInformationClass;
  94         pBuffer = Irp->AssociatedIrp.SystemBuffer;
  95
  96         //
  97         // Grab the main shared right off the bat
  98         //
  99
 100         AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
 101                       AFS_TRACE_LEVEL_VERBOSE,
 102                       "AFSQueryFileInfo Acquiring Fcb lock %08lX SHARED %08lX\n",
 103                       &pFcb->NPFcb->Resource,
 104                       PsGetCurrentThread());
 105
 106         AFSAcquireShared( &pFcb->NPFcb->Resource,
 107                           TRUE);
 108
 109         bReleaseMain = TRUE;
 110
 111         //
 112         // Don't allow requests against IOCtl nodes
 113         //
 114
 115         if( pFcb->Header.NodeTypeCode == AFS_SPECIAL_SHARE_FCB)
 116         {
 117
 118             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 119                           AFS_TRACE_LEVEL_VERBOSE,
 120                           "AFSQueryFileInfo Processing request against SpecialShare Fcb\n");
 121
 122             ntStatus = AFSProcessShareQueryInfo( Irp,
 123                                                  pFcb,
 124                                                  pCcb);
 125
 126             try_return( ntStatus);
 127         }
 128         else if( pFcb->Header.NodeTypeCode == AFS_IOCTL_FCB)
 129         {
 130             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 131                           AFS_TRACE_LEVEL_VERBOSE,
 132                           "AFSQueryFileInfo request against PIOCtl Fcb\n");
 133
 134             ntStatus = AFSProcessPIOCtlQueryInfo( Irp,
 135                                                   pFcb,
 136                                                   pCcb,
 137                                                   &lLength);
 138
 139             try_return( ntStatus);
 140         }
 141
 142         //
 143         // Process the request
 144         //
 145
 146         switch( stFileInformationClass)
 147         {
 148
 149             case FileAllInformation:
 150             {
 151
 152                 PFILE_ALL_INFORMATION pAllInfo;
 153
 154                 //
 155                 //  For the all information class we'll typecast a local
 156                 //  pointer to the output buffer and then call the
 157                 //  individual routines to fill in the buffer.
 158                 //
 159
 160                 pAllInfo = (PFILE_ALL_INFORMATION)pBuffer;
 161
 162                 ntStatus = AFSQueryBasicInfo( Irp,
 163                                               pCcb->DirectoryCB,
 164                                               &pAllInfo->BasicInformation,
 165                                               &lLength);
 166
 167                 if( !NT_SUCCESS( ntStatus))
 168                 {
 169
 170                     try_return( ntStatus);
 171                 }
 172
 173                 ntStatus = AFSQueryStandardInfo( Irp,
 174                                                  pCcb->DirectoryCB,
 175                                                  &pAllInfo->StandardInformation,
 176                                                  &lLength);
 177
 178                 if( !NT_SUCCESS( ntStatus))
 179                 {
 180
 181                     try_return( ntStatus);
 182                 }
 183
 184                 ntStatus = AFSQueryInternalInfo( Irp,
 185                                                  pFcb,
 186                                                  &pAllInfo->InternalInformation,
 187                                                  &lLength);
 188
 189                 if( !NT_SUCCESS( ntStatus))
 190                 {
 191
 192                     try_return( ntStatus);
 193                 }
 194
 195                 ntStatus = AFSQueryEaInfo( Irp,
 196                                            pCcb->DirectoryCB,
 197                                            &pAllInfo->EaInformation,
 198                                            &lLength);
 199
 200                 if( !NT_SUCCESS( ntStatus))
 201                 {
 202
 203                     try_return( ntStatus);
 204                 }
 205
 206                 ntStatus = AFSQueryAccess( Irp,
 207                                            pFcb,
 208                                            &pAllInfo->AccessInformation,
 209                                            &lLength);
 210
 211                 if( !NT_SUCCESS( ntStatus))
 212                 {
 213
 214                     try_return( ntStatus);
 215                 }
 216
 217                 ntStatus = AFSQueryPositionInfo( Irp,
 218                                                  pFcb,
 219                                                  &pAllInfo->PositionInformation,
 220                                                  &lLength);
 221
 222                 if( !NT_SUCCESS( ntStatus))
 223                 {
 224
 225                     try_return( ntStatus);
 226                 }
 227
 228                 ntStatus = AFSQueryMode( Irp,
 229                                          pFcb,
 230                                          &pAllInfo->ModeInformation,
 231                                          &lLength);
 232
 233                 if( !NT_SUCCESS( ntStatus))
 234                 {
 235
 236                     try_return( ntStatus);
 237                 }
 238
 239                 ntStatus = AFSQueryAlignment( Irp,
 240                                               pFcb,
 241                                               &pAllInfo->AlignmentInformation,
 242                                               &lLength);
 243
 244                 if( !NT_SUCCESS( ntStatus))
 245                 {
 246
 247                     try_return( ntStatus);
 248                 }
 249
 250                 ntStatus = AFSQueryNameInfo( Irp,
 251                                              pCcb->DirectoryCB,
 252                                              &pAllInfo->NameInformation,
 253                                              &lLength);
 254
 255                 if( !NT_SUCCESS( ntStatus))
 256                 {
 257
 258                     try_return( ntStatus);
 259                 }
 260
 261                 break;
 262             }
 263
 264             case FileBasicInformation:
 265             {
 266
 267                 ntStatus = AFSQueryBasicInfo( Irp,
 268                                               pCcb->DirectoryCB,
 269                                               (PFILE_BASIC_INFORMATION)pBuffer,
 270                                               &lLength);
 271
 272                 break;
 273             }
 274
 275             case FileStandardInformation:
 276             {
 277
 278                 ntStatus = AFSQueryStandardInfo( Irp,
 279                                                  pCcb->DirectoryCB,
 280                                                  (PFILE_STANDARD_INFORMATION)pBuffer,
 281                                                  &lLength);
 282
 283                 break;
 284             }
 285
 286             case FileInternalInformation:
 287             {
 288
 289                 ntStatus = AFSQueryInternalInfo( Irp,
 290                                                  pFcb,
 291                                                  (PFILE_INTERNAL_INFORMATION)pBuffer,
 292                                                  &lLength);
 293
 294                 break;
 295             }
 296
 297             case FileEaInformation:
 298             {
 299
 300                 ntStatus = AFSQueryEaInfo( Irp,
 301                                            pCcb->DirectoryCB,
 302                                            (PFILE_EA_INFORMATION)pBuffer,
 303                                            &lLength);
 304
 305                 break;
 306             }
 307
 308             case FilePositionInformation:
 309             {
 310
 311                 ntStatus = AFSQueryPositionInfo( Irp,
 312                                       pFcb,
 313                                       (PFILE_POSITION_INFORMATION)pBuffer,
 314                                       &lLength);
 315
 316                 break;
 317             }
 318
 319             case FileNameInformation:
 320             {
 321
 322                 ntStatus = AFSQueryNameInfo( Irp,
 323                                   pCcb->DirectoryCB,
 324                                   (PFILE_NAME_INFORMATION)pBuffer,
 325                                   &lLength);
 326
 327                 break;
 328             }
 329
 330             case FileAlternateNameInformation:
 331             {
 332
 333                 ntStatus = AFSQueryShortNameInfo( Irp,
 334                                        pCcb->DirectoryCB,
 335                                        (PFILE_NAME_INFORMATION)pBuffer,
 336                                        &lLength);
 337
 338                 break;
 339             }
 340
 341             case FileNetworkOpenInformation:
 342             {
 343
 344                 ntStatus = AFSQueryNetworkInfo( Irp,
 345                                      pCcb->DirectoryCB,
 346                                      (PFILE_NETWORK_OPEN_INFORMATION)pBuffer,
 347                                      &lLength);
 348
 349                 break;
 350             }
 351
 352             case FileStreamInformation:
 353             {
 354
 355                 ntStatus = AFSQueryStreamInfo( Irp,
 356                                                pCcb->DirectoryCB,
 357                                                (FILE_STREAM_INFORMATION *)pBuffer,
 358                                                &lLength);
 359
 360                 break;
 361             }
 362
 363
 364             case FileAttributeTagInformation:
 365             {
 366
 367                 ntStatus = AFSQueryAttribTagInfo( Irp,
 368                                                   pCcb->DirectoryCB,
 369                                                   (FILE_ATTRIBUTE_TAG_INFORMATION *)pBuffer,
 370                                                   &lLength);
 371
 372                 break;
 373             }
 374
 375             case FileRemoteProtocolInformation:
 376             {
 377
 378                     ntStatus = AFSQueryRemoteProtocolInfo( Irp,
 379                                                            pCcb->DirectoryCB,
 380                                                            (FILE_REMOTE_PROTOCOL_INFORMATION *)pBuffer,
 381                                                            &lLength);
 382
 383                 break;
 384             }
 385
 386         default:
 387
 388                 ntStatus = STATUS_INVALID_PARAMETER;
 389
 390                 break;
 391         }
 392
 393 try_exit:
 394
 395         Irp->IoStatus.Information = pIrpSp->Parameters.QueryFile.Length - lLength;
 396
 397         if( bReleaseMain)
 398         {
 399
 400             AFSReleaseResource( &pFcb->NPFcb->Resource);
 401         }
 402
 403         if( !NT_SUCCESS( ntStatus) &&
 404             ntStatus != STATUS_INVALID_PARAMETER &&
 405             ntStatus != STATUS_BUFFER_OVERFLOW)
 406         {
 407
 408             if( pCcb != NULL &&
 409                 pCcb->DirectoryCB != NULL)
 410             {
 411
 412                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 413                               AFS_TRACE_LEVEL_ERROR,
 414                               "AFSQueryFileInfo Failed to process request for %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
 415                               &pCcb->DirectoryCB->NameInformation.FileName,
 416                               pCcb->DirectoryCB->ObjectInformation->FileId.Cell,
 417                               pCcb->DirectoryCB->ObjectInformation->FileId.Volume,
 418                               pCcb->DirectoryCB->ObjectInformation->FileId.Vnode,
 419                               pCcb->DirectoryCB->ObjectInformation->FileId.Unique,
 420                               ntStatus);
 421             }
 422         }
 423     }
 424     __except( AFSExceptionFilter( GetExceptionCode(), GetExceptionInformation()) )
 425     {
 426
 427         AFSDbgLogMsg( 0,
 428                       0,
 429                       "EXCEPTION - AFSQueryFileInfo\n");
 430
 431         ntStatus = STATUS_UNSUCCESSFUL;
 432
 433         if( bReleaseMain)
 434         {
 435
 436             AFSReleaseResource( &pFcb->NPFcb->Resource);
 437         }
 438     }
 439
 440     AFSCompleteRequest( Irp,
 441                         ntStatus);
 442
 443     return ntStatus;
 444 }
 445
 446 //
 447 // Function: AFSSetFileInfo
 448 //
 449 // Description:
 450 //
 451 //      This function is the dispatch handler for the IRP_MJ_SET_FILE_INFORMATION request
 452 //
 453 // Return:
 454 //
 455 //      A status is returned for the function
 456 //
 457
 458 NTSTATUS
 459 AFSSetFileInfo( IN PDEVICE_OBJECT LibDeviceObject,
 460                 IN PIRP Irp)
 461 {
 462
 463     NTSTATUS ntStatus = STATUS_SUCCESS;
 464     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
 465     IO_STACK_LOCATION *pIrpSp = IoGetCurrentIrpStackLocation( Irp);
 466     AFSFcb *pFcb = NULL;
 467     AFSCcb *pCcb = NULL;
 468     BOOLEAN bCompleteRequest = TRUE;
 469     FILE_INFORMATION_CLASS FileInformationClass;
 470     BOOLEAN bCanQueueRequest = FALSE;
 471     PFILE_OBJECT pFileObject = NULL;
 472     BOOLEAN bReleaseMain = FALSE;
 473     BOOLEAN bUpdateFileInfo = FALSE;
 474     AFSFileID stParentFileId;
 475
 476     __try
 477     {
 478
 479         pFileObject = pIrpSp->FileObject;
 480
 481         pFcb = (AFSFcb *)pFileObject->FsContext;
 482         pCcb = (AFSCcb *)pFileObject->FsContext2;
 483
 484         if( pFcb == NULL)
 485         {
 486
 487             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 488                           AFS_TRACE_LEVEL_ERROR,
 489                           "AFSSetFileInfo Attempted access (%08lX) when pFcb == NULL\n",
 490                           Irp);
 491
 492             try_return( ntStatus = STATUS_INVALID_DEVICE_REQUEST);
 493         }
 494
 495         bCanQueueRequest = !(IoIsOperationSynchronous( Irp) | (KeGetCurrentIrql() != PASSIVE_LEVEL));
 496         FileInformationClass = pIrpSp->Parameters.SetFile.FileInformationClass;
 497
 498         //
 499         // Grab the Fcb EXCL
 500         //
 501
 502         AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
 503                       AFS_TRACE_LEVEL_VERBOSE,
 504                       "AFSSetFileInfo Acquiring Fcb lock %08lX EXCL %08lX\n",
 505                       &pFcb->NPFcb->Resource,
 506                       PsGetCurrentThread());
 507
 508         AFSAcquireExcl( &pFcb->NPFcb->Resource,
 509                         TRUE);
 510
 511         bReleaseMain = TRUE;
 512
 513         //
 514         // Don't allow requests against IOCtl nodes
 515         //
 516
 517         if( pFcb->Header.NodeTypeCode == AFS_IOCTL_FCB)
 518         {
 519
 520             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 521                           AFS_TRACE_LEVEL_ERROR,
 522                           "AFSSetFileInfo Failing request against PIOCtl Fcb\n");
 523
 524             try_return( ntStatus = STATUS_INVALID_DEVICE_REQUEST);
 525         }
 526         else if( pFcb->Header.NodeTypeCode == AFS_SPECIAL_SHARE_FCB)
 527         {
 528
 529             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 530                           AFS_TRACE_LEVEL_VERBOSE,
 531                           "AFSSetFileInfo Processing request against SpecialShare Fcb\n");
 532
 533             ntStatus = AFSProcessShareSetInfo( Irp,
 534                                                pFcb,
 535                                                pCcb);
 536
 537             try_return( ntStatus);
 538         }
 539
 540         if( BooleanFlagOn( pFcb->ObjectInformation->VolumeCB->VolumeInformation.Characteristics, FILE_READ_ONLY_DEVICE))
 541         {
 542
 543             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 544                           AFS_TRACE_LEVEL_ERROR,
 545                           "AFSSetFileInfo Request failed due to read only volume\n",
 546                           Irp);
 547
 548             try_return( ntStatus = STATUS_ACCESS_DENIED);
 549         }
 550
 551         //
 552         // Ensure rename operations are synchronous
 553         //
 554
 555         if( FileInformationClass == FileRenameInformation)
 556         {
 557
 558             bCanQueueRequest = FALSE;
 559         }
 560
 561         //
 562         // Store away the parent fid
 563         //
 564
 565         RtlZeroMemory( &stParentFileId,
 566                        sizeof( AFSFileID));
 567
 568         if( pFcb->ObjectInformation->ParentObjectInformation != NULL)
 569         {
 570             stParentFileId = pFcb->ObjectInformation->ParentObjectInformation->FileId;
 571         }
 572
 573         //
 574         // Process the request
 575         //
 576
 577         switch( FileInformationClass)
 578         {
 579
 580             case FileBasicInformation:
 581             {
 582
 583                 bUpdateFileInfo = TRUE;
 584
 585                 ntStatus = AFSSetBasicInfo( Irp,
 586                                             pCcb->DirectoryCB);
 587
 588                 break;
 589             }
 590
 591             case FileDispositionInformation:
 592             {
 593
 594                 ntStatus = AFSSetDispositionInfo( Irp,
 595                                                   pCcb->DirectoryCB);
 596
 597                 break;
 598             }
 599
 600             case FileRenameInformation:
 601             {
 602
 603                 ntStatus = AFSSetRenameInfo( Irp);
 604
 605                 break;
 606             }
 607
 608             case FilePositionInformation:
 609             {
 610
 611                 ntStatus = AFSSetPositionInfo( Irp,
 612                                                pCcb->DirectoryCB);
 613
 614                 break;
 615             }
 616
 617             case FileLinkInformation:
 618             {
 619
 620                 ntStatus = STATUS_INVALID_DEVICE_REQUEST;
 621
 622                 break;
 623             }
 624
 625             case FileAllocationInformation:
 626             {
 627
 628                 ntStatus = AFSSetAllocationInfo( Irp,
 629                                                  pCcb->DirectoryCB);
 630
 631                 break;
 632             }
 633
 634             case FileEndOfFileInformation:
 635             {
 636
 637                 ntStatus = AFSSetEndOfFileInfo( Irp,
 638                                                 pCcb->DirectoryCB);
 639
 640                 break;
 641             }
 642
 643             default:
 644
 645                 ntStatus = STATUS_INVALID_PARAMETER;
 646
 647                 break;
 648         }
 649
 650 try_exit:
 651
 652         if( bReleaseMain)
 653         {
 654
 655             AFSReleaseResource( &pFcb->NPFcb->Resource);
 656         }
 657
 658         if( NT_SUCCESS( ntStatus) &&
 659             bUpdateFileInfo)
 660         {
 661
 662             ntStatus = AFSUpdateFileInformation( &stParentFileId,
 663                                                  pFcb->ObjectInformation,
 664                                                  &pFcb->AuthGroup);
 665
 666             if( !NT_SUCCESS( ntStatus))
 667             {
 668
 669                 AFSAcquireExcl( &pFcb->NPFcb->Resource,
 670                                 TRUE);
 671
 672                 //
 673                 // Unwind the update and fail the request
 674                 //
 675
 676                 AFSUnwindFileInfo( pFcb,
 677                                    pCcb);
 678
 679                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 680                               AFS_TRACE_LEVEL_ERROR,
 681                               "AFSSetFileInfo Failed to send file info update to service request for %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
 682                               &pCcb->DirectoryCB->NameInformation.FileName,
 683                               pCcb->DirectoryCB->ObjectInformation->FileId.Cell,
 684                               pCcb->DirectoryCB->ObjectInformation->FileId.Volume,
 685                               pCcb->DirectoryCB->ObjectInformation->FileId.Vnode,
 686                               pCcb->DirectoryCB->ObjectInformation->FileId.Unique,
 687                               ntStatus);
 688
 689                 AFSReleaseResource( &pFcb->NPFcb->Resource);
 690             }
 691         }
 692
 693         if( !NT_SUCCESS( ntStatus))
 694         {
 695
 696             if( pCcb != NULL &&
 697                 pCcb->DirectoryCB != NULL)
 698             {
 699
 700                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 701                               AFS_TRACE_LEVEL_ERROR,
 702                               "AFSSetFileInfo Failed to process request for %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
 703                               &pCcb->DirectoryCB->NameInformation.FileName,
 704                               pCcb->DirectoryCB->ObjectInformation->FileId.Cell,
 705                               pCcb->DirectoryCB->ObjectInformation->FileId.Volume,
 706                               pCcb->DirectoryCB->ObjectInformation->FileId.Vnode,
 707                               pCcb->DirectoryCB->ObjectInformation->FileId.Unique,
 708                               ntStatus);
 709             }
 710         }
 711     }
 712     __except( AFSExceptionFilter( GetExceptionCode(), GetExceptionInformation()) )
 713     {
 714
 715         AFSDbgLogMsg( 0,
 716                       0,
 717                       "EXCEPTION - AFSSetFileInfo\n");
 718
 719         ntStatus = STATUS_UNSUCCESSFUL;
 720     }
 721
 722     AFSCompleteRequest( Irp,
 723                         ntStatus);
 724
 725     return ntStatus;
 726 }
 727
 728 //
 729 // Function: AFSQueryBasicInfo
 730 //
 731 // Description:
 732 //
 733 //      This function is the handler for the query basic information request
 734 //
 735 // Return:
 736 //
 737 //      A status is returned for the function
 738 //
 739
 740 NTSTATUS
 741 AFSQueryBasicInfo( IN PIRP Irp,
 742                    IN AFSDirectoryCB *DirectoryCB,
 743                    IN OUT PFILE_BASIC_INFORMATION Buffer,
 744                    IN OUT PLONG Length)
 745 {
 746     NTSTATUS ntStatus = STATUS_SUCCESS;
 747     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
 748
 749     if( *Length >= sizeof( FILE_BASIC_INFORMATION))
 750     {
 751
 752         RtlZeroMemory( Buffer,
 753                        *Length);
 754
 755         Buffer->CreationTime = DirectoryCB->ObjectInformation->CreationTime;
 756         Buffer->LastAccessTime = DirectoryCB->ObjectInformation->LastAccessTime;
 757         Buffer->LastWriteTime = DirectoryCB->ObjectInformation->LastWriteTime;
 758         Buffer->ChangeTime = DirectoryCB->ObjectInformation->ChangeTime;
 759         Buffer->FileAttributes = DirectoryCB->ObjectInformation->FileAttributes;
 760
 761         if( DirectoryCB->NameInformation.FileName.Buffer[ 0] == L'.' &&
 762                  BooleanFlagOn( pDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_HIDE_DOT_NAMES))
 763         {
 764
 765             if ( Buffer->FileAttributes != FILE_ATTRIBUTE_NORMAL)
 766             {
 767
 768                 Buffer->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
 769             }
 770             else
 771             {
 772
 773                 Buffer->FileAttributes = FILE_ATTRIBUTE_HIDDEN;
 774             }
 775         }
 776
 777         *Length -= sizeof( FILE_BASIC_INFORMATION);
 778     }
 779     else
 780     {
 781
 782         ntStatus = STATUS_BUFFER_TOO_SMALL;
 783     }
 784
 785     return ntStatus;
 786 }
 787
 788 NTSTATUS
 789 AFSQueryStandardInfo( IN PIRP Irp,
 790                       IN AFSDirectoryCB *DirectoryCB,
 791                       IN OUT PFILE_STANDARD_INFORMATION Buffer,
 792                       IN OUT PLONG Length)
 793 {
 794
 795     NTSTATUS ntStatus = STATUS_SUCCESS;
 796     AFSFileInfoCB stFileInformation;
 797     AFSCcb *pCcb = NULL;
 798     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
 799
 800     if( *Length >= sizeof( FILE_STANDARD_INFORMATION))
 801     {
 802
 803         pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
 804
 805         RtlZeroMemory( Buffer,
 806                        *Length);
 807
 808         Buffer->NumberOfLinks = 1;
 809         Buffer->DeletePending = BooleanFlagOn( pCcb->DirectoryCB->Flags, AFS_DIR_ENTRY_PENDING_DELETE);
 810
 811         RtlZeroMemory( &stFileInformation,
 812                        sizeof( AFSFileInfoCB));
 813
 814         Buffer->AllocationSize.QuadPart = (ULONGLONG)((DirectoryCB->ObjectInformation->AllocationSize.QuadPart/PAGE_SIZE) + 1) * PAGE_SIZE;
 815
 816         Buffer->EndOfFile = DirectoryCB->ObjectInformation->EndOfFile;
 817
 818         Buffer->Directory = BooleanFlagOn( DirectoryCB->ObjectInformation->FileAttributes, FILE_ATTRIBUTE_DIRECTORY);
 819
 820         *Length -= sizeof( FILE_STANDARD_INFORMATION);
 821     }
 822     else
 823     {
 824
 825         ntStatus = STATUS_BUFFER_TOO_SMALL;
 826     }
 827
 828     return ntStatus;
 829 }
 830
 831 NTSTATUS
 832 AFSQueryInternalInfo( IN PIRP Irp,
 833                       IN AFSFcb *Fcb,
 834                       IN OUT PFILE_INTERNAL_INFORMATION Buffer,
 835                       IN OUT PLONG Length)
 836 {
 837
 838     NTSTATUS ntStatus = STATUS_SUCCESS;
 839
 840     if( *Length >= sizeof( FILE_INTERNAL_INFORMATION))
 841     {
 842
 843         Buffer->IndexNumber.HighPart = Fcb->ObjectInformation->FileId.Volume;
 844
 845         Buffer->IndexNumber.LowPart = Fcb->ObjectInformation->FileId.Vnode;
 846
 847         *Length -= sizeof( FILE_INTERNAL_INFORMATION);
 848     }
 849     else
 850     {
 851
 852         ntStatus = STATUS_BUFFER_TOO_SMALL;
 853     }
 854
 855     return ntStatus;
 856 }
 857
 858 NTSTATUS
 859 AFSQueryEaInfo( IN PIRP Irp,
 860                 IN AFSDirectoryCB *DirectoryCB,
 861                 IN OUT PFILE_EA_INFORMATION Buffer,
 862                 IN OUT PLONG Length)
 863 {
 864
 865     NTSTATUS ntStatus = STATUS_SUCCESS;
 866
 867     RtlZeroMemory( Buffer,
 868                    *Length);
 869
 870     if( *Length >= sizeof( FILE_EA_INFORMATION))
 871     {
 872
 873         Buffer->EaSize = 0;
 874
 875         *Length -= sizeof( FILE_EA_INFORMATION);
 876     }
 877     else
 878     {
 879
 880         ntStatus = STATUS_BUFFER_TOO_SMALL;
 881     }
 882
 883     return ntStatus;
 884 }
 885
 886 NTSTATUS
 887 AFSQueryPositionInfo( IN PIRP Irp,
 888                       IN AFSFcb *Fcb,
 889                       IN OUT PFILE_POSITION_INFORMATION Buffer,
 890                       IN OUT PLONG Length)
 891 {
 892
 893     NTSTATUS ntStatus = STATUS_SUCCESS;
 894     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
 895
 896     if( *Length >= sizeof( FILE_POSITION_INFORMATION))
 897     {
 898
 899         RtlZeroMemory( Buffer,
 900                        *Length);
 901
 902         Buffer->CurrentByteOffset.QuadPart = pIrpSp->FileObject->CurrentByteOffset.QuadPart;
 903
 904         *Length -= sizeof( FILE_POSITION_INFORMATION);
 905     }
 906     else
 907     {
 908
 909         ntStatus = STATUS_BUFFER_TOO_SMALL;
 910     }
 911
 912     return ntStatus;
 913 }
 914
 915 NTSTATUS
 916 AFSQueryAccess( IN PIRP Irp,
 917                 IN AFSFcb *Fcb,
 918                 IN OUT PFILE_ACCESS_INFORMATION Buffer,
 919                 IN OUT PLONG Length)
 920 {
 921
 922     NTSTATUS ntStatus = STATUS_SUCCESS;
 923
 924     if( *Length >= sizeof( FILE_ACCESS_INFORMATION))
 925     {
 926
 927         RtlZeroMemory( Buffer,
 928                        *Length);
 929
 930         Buffer->AccessFlags = 0;
 931
 932         *Length -= sizeof( FILE_ACCESS_INFORMATION);
 933     }
 934     else
 935     {
 936
 937         ntStatus = STATUS_BUFFER_TOO_SMALL;
 938     }
 939
 940     return ntStatus;
 941 }
 942
 943 NTSTATUS
 944 AFSQueryMode( IN PIRP Irp,
 945               IN AFSFcb *Fcb,
 946               IN OUT PFILE_MODE_INFORMATION Buffer,
 947               IN OUT PLONG Length)
 948 {
 949
 950     NTSTATUS ntStatus = STATUS_SUCCESS;
 951
 952     if( *Length >= sizeof( FILE_MODE_INFORMATION))
 953     {
 954
 955         RtlZeroMemory( Buffer,
 956                        *Length);
 957
 958         Buffer->Mode = 0;
 959
 960         *Length -= sizeof( FILE_MODE_INFORMATION);
 961     }
 962     else
 963     {
 964
 965         ntStatus = STATUS_BUFFER_TOO_SMALL;
 966     }
 967
 968     return ntStatus;
 969 }
 970
 971 NTSTATUS
 972 AFSQueryAlignment( IN PIRP Irp,
 973                    IN AFSFcb *Fcb,
 974                    IN OUT PFILE_ALIGNMENT_INFORMATION Buffer,
 975                    IN OUT PLONG Length)
 976 {
 977
 978     NTSTATUS ntStatus = STATUS_SUCCESS;
 979
 980     if( *Length >= sizeof( FILE_ALIGNMENT_INFORMATION))
 981     {
 982
 983         RtlZeroMemory( Buffer,
 984                        *Length);
 985
 986         Buffer->AlignmentRequirement = 1;
 987
 988         *Length -= sizeof( FILE_ALIGNMENT_INFORMATION);
 989     }
 990     else
 991     {
 992
 993         ntStatus = STATUS_BUFFER_TOO_SMALL;
 994     }
 995
 996     return ntStatus;
 997 }
 998
 999 NTSTATUS
1000 AFSQueryNameInfo( IN PIRP Irp,
1001                   IN AFSDirectoryCB *DirectoryCB,
1002                   IN OUT PFILE_NAME_INFORMATION Buffer,
1003                   IN OUT PLONG Length)
1004 {
1005
1006     NTSTATUS ntStatus = STATUS_SUCCESS;
1007     ULONG ulCopyLength = 0;
1008     ULONG cchCopied = 0;
1009     AFSFcb *pFcb = NULL;
1010     AFSCcb *pCcb = NULL;
1011     IO_STACK_LOCATION *pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1012     BOOLEAN bAddLeadingSlash = FALSE;
1013     BOOLEAN bAddTrailingSlash = FALSE;
1014     USHORT usFullNameLength = 0;
1015
1016     pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
1017
1018     pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
1019
1020     if( *Length >= FIELD_OFFSET( FILE_NAME_INFORMATION, FileName))
1021     {
1022
1023         RtlZeroMemory( Buffer,
1024                        *Length);
1025
1026         if( pCcb->FullFileName.Length == 0 ||
1027             pCcb->FullFileName.Buffer[ 0] != L'\\')
1028         {
1029             bAddLeadingSlash = TRUE;
1030         }
1031
1032         if( pFcb->ObjectInformation->FileType == AFS_FILE_TYPE_DIRECTORY &&
1033             pCcb->FullFileName.Length > 0 &&
1034             pCcb->FullFileName.Buffer[ (pCcb->FullFileName.Length/sizeof( WCHAR)) - 1] != L'\\')
1035         {
1036             bAddTrailingSlash = TRUE;
1037         }
1038
1039         usFullNameLength = sizeof( WCHAR) +
1040                                     AFSServerName.Length +
1041                                     pCcb->FullFileName.Length;
1042
1043         if( bAddLeadingSlash)
1044         {
1045             usFullNameLength += sizeof( WCHAR);
1046         }
1047
1048         if( bAddTrailingSlash)
1049         {
1050             usFullNameLength += sizeof( WCHAR);
1051         }
1052
1053         if( *Length >= (LONG)(FIELD_OFFSET( FILE_NAME_INFORMATION, FileName) + (LONG)usFullNameLength))
1054         {
1055
1056             ulCopyLength = (LONG)usFullNameLength;
1057         }
1058         else
1059         {
1060
1061             ulCopyLength = *Length - FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1062
1063             ntStatus = STATUS_BUFFER_OVERFLOW;
1064         }
1065
1066         Buffer->FileNameLength = (ULONG)usFullNameLength;
1067
1068         *Length -= FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1069
1070         if( ulCopyLength > 0)
1071         {
1072
1073             Buffer->FileName[ 0] = L'\\';
1074             ulCopyLength -= sizeof( WCHAR);
1075
1076             *Length -= sizeof( WCHAR);
1077             cchCopied += 1;
1078
1079             if( ulCopyLength >= AFSServerName.Length)
1080             {
1081
1082                 RtlCopyMemory( &Buffer->FileName[ 1],
1083                                AFSServerName.Buffer,
1084                                AFSServerName.Length);
1085
1086                 ulCopyLength -= AFSServerName.Length;
1087                 *Length -= AFSServerName.Length;
1088                 cchCopied += AFSServerName.Length/sizeof( WCHAR);
1089
1090                 if ( ulCopyLength > 0 &&
1091                      bAddLeadingSlash)
1092                 {
1093
1094                     Buffer->FileName[ cchCopied] = L'\\';
1095
1096                     ulCopyLength -= sizeof( WCHAR);
1097                     *Length -= sizeof( WCHAR);
1098                     cchCopied++;
1099                 }
1100
1101                 if( ulCopyLength >= pCcb->FullFileName.Length)
1102                 {
1103
1104                     RtlCopyMemory( &Buffer->FileName[ cchCopied],
1105                                    pCcb->FullFileName.Buffer,
1106                                    pCcb->FullFileName.Length);
1107
1108                     ulCopyLength -= pCcb->FullFileName.Length;
1109                     *Length -= pCcb->FullFileName.Length;
1110                     cchCopied += pCcb->FullFileName.Length/sizeof( WCHAR);
1111
1112                     if( ulCopyLength > 0 &&
1113                         bAddTrailingSlash)
1114                     {
1115                         Buffer->FileName[ cchCopied] = L'\\';
1116
1117                         *Length -= sizeof( WCHAR);
1118                     }
1119                 }
1120                 else
1121                 {
1122
1123                     RtlCopyMemory( &Buffer->FileName[ cchCopied],
1124                                    pCcb->FullFileName.Buffer,
1125                                    ulCopyLength);
1126
1127                     *Length -= ulCopyLength;
1128                 }
1129             }
1130         }
1131     }
1132     else
1133     {
1134
1135         ntStatus = STATUS_BUFFER_TOO_SMALL;
1136     }
1137
1138     return ntStatus;
1139 }
1140
1141 NTSTATUS
1142 AFSQueryShortNameInfo( IN PIRP Irp,
1143                        IN AFSDirectoryCB *DirectoryCB,
1144                        IN OUT PFILE_NAME_INFORMATION Buffer,
1145                        IN OUT PLONG Length)
1146 {
1147
1148     NTSTATUS ntStatus = STATUS_BUFFER_TOO_SMALL;
1149     ULONG ulCopyLength = 0;
1150
1151     RtlZeroMemory( Buffer,
1152                    *Length);
1153
1154     if( DirectoryCB->NameInformation.ShortNameLength == 0)
1155     {
1156
1157         //
1158         // The short name IS the long name
1159         //
1160
1161         if( *Length >= (LONG)FIELD_OFFSET( FILE_NAME_INFORMATION, FileName))
1162         {
1163
1164             if( *Length >= (LONG)(FIELD_OFFSET( FILE_NAME_INFORMATION, FileName) + (LONG)DirectoryCB->NameInformation.FileName.Length))
1165             {
1166
1167                 ulCopyLength = (LONG)DirectoryCB->NameInformation.FileName.Length;
1168
1169                 ntStatus = STATUS_SUCCESS;
1170             }
1171             else
1172             {
1173
1174                 ulCopyLength = *Length - FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1175
1176                 ntStatus = STATUS_BUFFER_OVERFLOW;
1177             }
1178
1179             Buffer->FileNameLength = DirectoryCB->NameInformation.FileName.Length;
1180
1181             *Length -= FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1182
1183             if( ulCopyLength > 0)
1184             {
1185
1186                 RtlCopyMemory( Buffer->FileName,
1187                                DirectoryCB->NameInformation.FileName.Buffer,
1188                                ulCopyLength);
1189
1190                 *Length -= ulCopyLength;
1191             }
1192         }
1193     }
1194     else
1195     {
1196
1197         if( *Length >= (LONG)FIELD_OFFSET( FILE_NAME_INFORMATION, FileName))
1198         {
1199
1200             if( *Length >= (LONG)(FIELD_OFFSET( FILE_NAME_INFORMATION, FileName) + (LONG)DirectoryCB->NameInformation.FileName.Length))
1201             {
1202
1203                 ulCopyLength = (LONG)DirectoryCB->NameInformation.ShortNameLength;
1204
1205                 ntStatus = STATUS_SUCCESS;
1206             }
1207             else
1208             {
1209
1210                 ulCopyLength = *Length - FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1211
1212                 ntStatus = STATUS_BUFFER_OVERFLOW;
1213             }
1214
1215             Buffer->FileNameLength = DirectoryCB->NameInformation.ShortNameLength;
1216
1217             *Length -= FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1218
1219             if( ulCopyLength > 0)
1220             {
1221
1222                 RtlCopyMemory( Buffer->FileName,
1223                                DirectoryCB->NameInformation.ShortName,
1224                                Buffer->FileNameLength);
1225
1226                 *Length -= ulCopyLength;
1227             }
1228         }
1229     }
1230
1231     return ntStatus;
1232 }
1233
1234 NTSTATUS
1235 AFSQueryNetworkInfo( IN PIRP Irp,
1236                      IN AFSDirectoryCB *DirectoryCB,
1237                      IN OUT PFILE_NETWORK_OPEN_INFORMATION Buffer,
1238                      IN OUT PLONG Length)
1239 {
1240
1241     NTSTATUS ntStatus = STATUS_SUCCESS;
1242     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1243
1244     RtlZeroMemory( Buffer,
1245                    *Length);
1246
1247     if( *Length >= sizeof( FILE_NETWORK_OPEN_INFORMATION))
1248     {
1249
1250         Buffer->CreationTime.QuadPart = DirectoryCB->ObjectInformation->CreationTime.QuadPart;
1251         Buffer->LastAccessTime.QuadPart = DirectoryCB->ObjectInformation->LastAccessTime.QuadPart;
1252         Buffer->LastWriteTime.QuadPart = DirectoryCB->ObjectInformation->LastWriteTime.QuadPart;
1253         Buffer->ChangeTime.QuadPart = DirectoryCB->ObjectInformation->ChangeTime.QuadPart;
1254
1255         Buffer->AllocationSize.QuadPart = DirectoryCB->ObjectInformation->AllocationSize.QuadPart;
1256         Buffer->EndOfFile.QuadPart = DirectoryCB->ObjectInformation->EndOfFile.QuadPart;
1257
1258         Buffer->FileAttributes = DirectoryCB->ObjectInformation->FileAttributes;
1259
1260         if( DirectoryCB->NameInformation.FileName.Buffer[ 0] == L'.' &&
1261             BooleanFlagOn( pDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_HIDE_DOT_NAMES))
1262         {
1263
1264             if ( Buffer->FileAttributes != FILE_ATTRIBUTE_NORMAL)
1265             {
1266
1267                 Buffer->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
1268             }
1269             else
1270             {
1271
1272                 Buffer->FileAttributes = FILE_ATTRIBUTE_HIDDEN;
1273             }
1274         }
1275
1276         *Length -= sizeof( FILE_NETWORK_OPEN_INFORMATION);
1277     }
1278     else
1279     {
1280
1281         ntStatus = STATUS_BUFFER_TOO_SMALL;
1282     }
1283
1284     return ntStatus;
1285 }
1286
1287 NTSTATUS
1288 AFSQueryStreamInfo( IN PIRP Irp,
1289                     IN AFSDirectoryCB *DirectoryCB,
1290                     IN OUT FILE_STREAM_INFORMATION *Buffer,
1291                     IN OUT PLONG Length)
1292 {
1293
1294     NTSTATUS ntStatus = STATUS_BUFFER_TOO_SMALL;
1295     ULONG ulCopyLength = 0;
1296     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1297
1298     if( *Length >= FIELD_OFFSET( FILE_STREAM_INFORMATION, StreamName))
1299     {
1300
1301         RtlZeroMemory( Buffer,
1302                        *Length);
1303
1304         Buffer->NextEntryOffset = 0;
1305
1306
1307         if( !BooleanFlagOn( DirectoryCB->ObjectInformation->FileAttributes, FILE_ATTRIBUTE_DIRECTORY))
1308         {
1309
1310             if( *Length >= (LONG)(FIELD_OFFSET( FILE_STREAM_INFORMATION, StreamName) + 14))  // ::$DATA
1311             {
1312
1313                 ulCopyLength = 14;
1314
1315                 ntStatus = STATUS_SUCCESS;
1316             }
1317             else
1318             {
1319
1320                 ulCopyLength = *Length - FIELD_OFFSET( FILE_STREAM_INFORMATION, StreamName);
1321
1322                 ntStatus = STATUS_BUFFER_OVERFLOW;
1323             }
1324
1325             Buffer->StreamNameLength = 14; // ::$DATA
1326
1327             Buffer->StreamSize.QuadPart = DirectoryCB->ObjectInformation->EndOfFile.QuadPart;
1328
1329             Buffer->StreamAllocationSize.QuadPart = DirectoryCB->ObjectInformation->AllocationSize.QuadPart;
1330
1331             *Length -= FIELD_OFFSET( FILE_STREAM_INFORMATION, StreamName);
1332
1333             if( ulCopyLength > 0)
1334             {
1335
1336                 RtlCopyMemory( Buffer->StreamName,
1337                                L"::$DATA",
1338                                ulCopyLength);
1339
1340                 *Length -= ulCopyLength;
1341             }
1342         }
1343         else
1344         {
1345
1346             Buffer->StreamNameLength = 0;       // No stream for a directory
1347
1348             // The response size is zero
1349
1350             ntStatus = STATUS_SUCCESS;
1351         }
1352     }
1353
1354     return ntStatus;
1355 }
1356
1357 NTSTATUS
1358 AFSQueryAttribTagInfo( IN PIRP Irp,
1359                        IN AFSDirectoryCB *DirectoryCB,
1360                        IN OUT FILE_ATTRIBUTE_TAG_INFORMATION *Buffer,
1361                        IN OUT PLONG Length)
1362 {
1363
1364     NTSTATUS ntStatus = STATUS_BUFFER_TOO_SMALL;
1365     ULONG ulCopyLength = 0;
1366     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1367
1368     if( *Length >= sizeof( FILE_ATTRIBUTE_TAG_INFORMATION))
1369     {
1370
1371         RtlZeroMemory( Buffer,
1372                        *Length);
1373
1374         Buffer->FileAttributes = DirectoryCB->ObjectInformation->FileAttributes;
1375
1376         if( DirectoryCB->NameInformation.FileName.Buffer[ 0] == L'.' &&
1377             BooleanFlagOn( pDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_HIDE_DOT_NAMES))
1378         {
1379
1380             if ( Buffer->FileAttributes != FILE_ATTRIBUTE_NORMAL)
1381             {
1382
1383                 Buffer->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
1384             }
1385             else
1386             {
1387
1388                 Buffer->FileAttributes = FILE_ATTRIBUTE_HIDDEN;
1389             }
1390         }
1391
1392         if( BooleanFlagOn( DirectoryCB->ObjectInformation->FileAttributes, FILE_ATTRIBUTE_REPARSE_POINT))
1393         {
1394             Buffer->ReparseTag = IO_REPARSE_TAG_OPENAFS_DFS;
1395         }
1396
1397         *Length -= sizeof( FILE_ATTRIBUTE_TAG_INFORMATION);
1398
1399         ntStatus = STATUS_SUCCESS;
1400     }
1401
1402     return ntStatus;
1403 }
1404
1405 NTSTATUS
1406 AFSQueryRemoteProtocolInfo( IN PIRP Irp,
1407                             IN AFSDirectoryCB *DirectoryCB,
1408                             IN OUT FILE_REMOTE_PROTOCOL_INFORMATION *Buffer,
1409                             IN OUT PLONG Length)
1410 {
1411
1412     NTSTATUS ntStatus = STATUS_BUFFER_TOO_SMALL;
1413     ULONG ulCopyLength = 0;
1414     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1415
1416     if( *Length >= sizeof( FILE_REMOTE_PROTOCOL_INFORMATION))
1417     {
1418
1419         RtlZeroMemory( Buffer,
1420                        *Length);
1421
1422         Buffer->StructureVersion = 1;
1423
1424         Buffer->StructureSize = sizeof(FILE_REMOTE_PROTOCOL_INFORMATION);
1425
1426         Buffer->Protocol = WNNC_NET_OPENAFS;
1427
1428         Buffer->ProtocolMajorVersion = 3;
1429
1430         Buffer->ProtocolMinorVersion = 0;
1431
1432         Buffer->ProtocolRevision = 0;
1433
1434         *Length -= sizeof( FILE_REMOTE_PROTOCOL_INFORMATION);
1435
1436         ntStatus = STATUS_SUCCESS;
1437     }
1438
1439     return ntStatus;
1440 }
1441
1442 NTSTATUS
1443 AFSSetBasicInfo( IN PIRP Irp,
1444                  IN AFSDirectoryCB *DirectoryCB)
1445 {
1446     NTSTATUS ntStatus = STATUS_SUCCESS;
1447     PFILE_BASIC_INFORMATION pBuffer;
1448     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1449     ULONG ulNotifyFilter = 0;
1450     AFSCcb *pCcb = NULL;
1451
1452     __Enter
1453     {
1454
1455         pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
1456
1457         pBuffer = (PFILE_BASIC_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
1458
1459         pCcb->FileUnwindInfo.FileAttributes = (ULONG)-1;
1460
1461         if( pBuffer->FileAttributes != (ULONGLONG)0)
1462         {
1463
1464             if( DirectoryCB->ObjectInformation->Fcb->Header.NodeTypeCode == AFS_FILE_FCB &&
1465                 BooleanFlagOn( pBuffer->FileAttributes, FILE_ATTRIBUTE_DIRECTORY))
1466             {
1467
1468                 try_return( ntStatus = STATUS_INVALID_PARAMETER);
1469             }
1470
1471             if( DirectoryCB->ObjectInformation->Fcb->Header.NodeTypeCode == AFS_DIRECTORY_FCB)
1472             {
1473
1474                 pBuffer->FileAttributes |= FILE_ATTRIBUTE_DIRECTORY;
1475             }
1476
1477             pCcb->FileUnwindInfo.FileAttributes = DirectoryCB->ObjectInformation->FileAttributes;
1478
1479             DirectoryCB->ObjectInformation->FileAttributes = pBuffer->FileAttributes;
1480
1481             ulNotifyFilter |= FILE_NOTIFY_CHANGE_ATTRIBUTES;
1482
1483             SetFlag( DirectoryCB->ObjectInformation->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED);
1484         }
1485
1486         pCcb->FileUnwindInfo.CreationTime.QuadPart = (ULONGLONG)-1;
1487
1488         if( pBuffer->CreationTime.QuadPart != (ULONGLONG)-1 &&
1489             pBuffer->CreationTime.QuadPart != (ULONGLONG)0)
1490         {
1491
1492             pCcb->FileUnwindInfo.CreationTime.QuadPart = DirectoryCB->ObjectInformation->CreationTime.QuadPart;
1493
1494             DirectoryCB->ObjectInformation->CreationTime.QuadPart = pBuffer->CreationTime.QuadPart;
1495
1496             ulNotifyFilter |= FILE_NOTIFY_CHANGE_CREATION;
1497
1498             SetFlag( DirectoryCB->ObjectInformation->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_CREATE_TIME);
1499         }
1500
1501         pCcb->FileUnwindInfo.LastAccessTime.QuadPart = (ULONGLONG)-1;
1502
1503         if( pBuffer->LastAccessTime.QuadPart != (ULONGLONG)-1 &&
1504             pBuffer->LastAccessTime.QuadPart != (ULONGLONG)0)
1505         {
1506
1507             pCcb->FileUnwindInfo.LastAccessTime.QuadPart = DirectoryCB->ObjectInformation->LastAccessTime.QuadPart;
1508
1509             DirectoryCB->ObjectInformation->LastAccessTime.QuadPart = pBuffer->LastAccessTime.QuadPart;
1510
1511             ulNotifyFilter |= FILE_NOTIFY_CHANGE_LAST_ACCESS;
1512
1513             SetFlag( DirectoryCB->ObjectInformation->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_ACCESS_TIME);
1514         }
1515
1516         pCcb->FileUnwindInfo.LastWriteTime.QuadPart = (ULONGLONG)-1;
1517
1518         if( pBuffer->LastWriteTime.QuadPart != (ULONGLONG)-1 &&
1519             pBuffer->LastWriteTime.QuadPart != (ULONGLONG)0)
1520         {
1521
1522             pCcb->FileUnwindInfo.LastWriteTime.QuadPart = DirectoryCB->ObjectInformation->LastWriteTime.QuadPart;
1523
1524             DirectoryCB->ObjectInformation->LastWriteTime.QuadPart = pBuffer->LastWriteTime.QuadPart;
1525
1526             ulNotifyFilter |= FILE_NOTIFY_CHANGE_LAST_WRITE;
1527
1528             SetFlag( DirectoryCB->ObjectInformation->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_LAST_WRITE_TIME);
1529         }
1530
1531         pCcb->FileUnwindInfo.ChangeTime.QuadPart = (ULONGLONG)-1;
1532
1533         if( pBuffer->ChangeTime.QuadPart != (ULONGLONG)-1 &&
1534             pBuffer->ChangeTime.QuadPart != (ULONGLONG)0)
1535         {
1536
1537             pCcb->FileUnwindInfo.ChangeTime.QuadPart = DirectoryCB->ObjectInformation->ChangeTime.QuadPart;
1538
1539             DirectoryCB->ObjectInformation->ChangeTime.QuadPart = pBuffer->ChangeTime.QuadPart;
1540
1541             ulNotifyFilter |= FILE_NOTIFY_CHANGE_LAST_ACCESS;
1542
1543             SetFlag( DirectoryCB->ObjectInformation->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_CHANGE_TIME);
1544         }
1545
1546         if( ulNotifyFilter > 0)
1547         {
1548
1549             if( DirectoryCB->ObjectInformation->ParentObjectInformation != NULL)
1550             {
1551
1552                 AFSFsRtlNotifyFullReportChange( DirectoryCB->ObjectInformation->ParentObjectInformation,
1553                                                 pCcb,
1554                                                 (ULONG)ulNotifyFilter,
1555                                                 (ULONG)FILE_ACTION_MODIFIED);
1556             }
1557         }
1558
1559 try_exit:
1560
1561         NOTHING;
1562     }
1563
1564     return ntStatus;
1565 }
1566
1567 NTSTATUS
1568 AFSSetDispositionInfo( IN PIRP Irp,
1569                        IN AFSDirectoryCB *DirectoryCB)
1570 {
1571     NTSTATUS ntStatus = STATUS_SUCCESS;
1572     PFILE_DISPOSITION_INFORMATION pBuffer;
1573     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1574     AFSFcb *pFcb = NULL;
1575     AFSCcb *pCcb = NULL;
1576
1577     __Enter
1578     {
1579
1580         pBuffer = (PFILE_DISPOSITION_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
1581
1582         pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
1583
1584         pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
1585
1586         //
1587         // Can't delete the root
1588         //
1589
1590         if( pFcb->Header.NodeTypeCode == AFS_ROOT_FCB)
1591         {
1592
1593             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1594                           AFS_TRACE_LEVEL_ERROR,
1595                           "AFSSetDispositionInfo Attempt to delete root entry\n");
1596
1597             try_return( ntStatus = STATUS_CANNOT_DELETE);
1598         }
1599
1600         //
1601         // If the file is read only then do not allow the delete
1602         //
1603
1604         if( BooleanFlagOn( DirectoryCB->ObjectInformation->FileAttributes, FILE_ATTRIBUTE_READONLY))
1605         {
1606
1607             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1608                           AFS_TRACE_LEVEL_ERROR,
1609                           "AFSSetDispositionInfo Attempt to delete read only entry %wZ\n",
1610                           &DirectoryCB->NameInformation.FileName);
1611
1612             try_return( ntStatus = STATUS_CANNOT_DELETE);
1613         }
1614
1615         if( pBuffer->DeleteFile)
1616         {
1617
1618             //
1619             // Check if the caller can delete the file
1620             //
1621
1622             ntStatus = AFSNotifyDelete( DirectoryCB,
1623                                         TRUE);
1624
1625             if( !NT_SUCCESS( ntStatus))
1626             {
1627
1628                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1629                               AFS_TRACE_LEVEL_ERROR,
1630                               "AFSSetDispositionInfo Cannot delete entry %wZ Status %08lX\n",
1631                               &DirectoryCB->NameInformation.FileName,
1632                               ntStatus);
1633
1634                 try_return( ntStatus);
1635             }
1636
1637             if( pFcb->Header.NodeTypeCode == AFS_DIRECTORY_FCB)
1638             {
1639
1640                 //
1641                 // Check if this is a directory that there are not currently other opens
1642                 //
1643
1644                 if( pFcb->ObjectInformation->Specific.Directory.ChildOpenHandleCount > 0)
1645                 {
1646
1647                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1648                                   AFS_TRACE_LEVEL_ERROR,
1649                                   "AFSSetDispositionInfo Attempt to delete directory %wZ with open %u handles\n",
1650                                   &DirectoryCB->NameInformation.FileName,
1651                                   pFcb->ObjectInformation->Specific.Directory.ChildOpenHandleCount);
1652
1653                     try_return( ntStatus = STATUS_DIRECTORY_NOT_EMPTY);
1654                 }
1655
1656                 if( !AFSIsDirectoryEmptyForDelete( pFcb))
1657                 {
1658
1659                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1660                                   AFS_TRACE_LEVEL_ERROR,
1661                                   "AFSSetDispositionInfo Attempt to delete non-empty directory %wZ\n",
1662                                   &DirectoryCB->NameInformation.FileName);
1663
1664                     try_return( ntStatus = STATUS_DIRECTORY_NOT_EMPTY);
1665                 }
1666             }
1667             else
1668             {
1669
1670                 //
1671                 // Attempt to flush any outstanding data
1672                 //
1673
1674                 if( !MmFlushImageSection( &pFcb->NPFcb->SectionObjectPointers,
1675                                           MmFlushForDelete))
1676                 {
1677
1678                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1679                                   AFS_TRACE_LEVEL_ERROR,
1680                                   "AFSSetDispositionInfo Failed to flush image section for delete Entry %wZ\n",
1681                                   &DirectoryCB->NameInformation.FileName);
1682
1683                     try_return( ntStatus = STATUS_CANNOT_DELETE);
1684                 }
1685
1686                 //
1687                 // Purge the cache as well
1688                 //
1689
1690                 if( pFcb->NPFcb->SectionObjectPointers.DataSectionObject != NULL)
1691                 {
1692
1693                     CcPurgeCacheSection( &pFcb->NPFcb->SectionObjectPointers,
1694                                          NULL,
1695                                          0,
1696                                          TRUE);
1697                 }
1698             }
1699
1700             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1701                           AFS_TRACE_LEVEL_VERBOSE,
1702                           "AFSSetDispositionInfo Setting PENDING_DELETE on DirEntry  %p Name %wZ\n",
1703                           DirectoryCB,
1704                           &DirectoryCB->NameInformation.FileName);
1705
1706             SetFlag( pCcb->DirectoryCB->Flags, AFS_DIR_ENTRY_PENDING_DELETE);
1707         }
1708         else
1709         {
1710
1711             ClearFlag( pCcb->DirectoryCB->Flags, AFS_DIR_ENTRY_PENDING_DELETE);
1712         }
1713
1714         //
1715         // OK, should be good to go, set the flag in the file object
1716         //
1717
1718         pIrpSp->FileObject->DeletePending = pBuffer->DeleteFile;
1719
1720 try_exit:
1721
1722         NOTHING;
1723     }
1724
1725     return ntStatus;
1726 }
1727
1728 NTSTATUS
1729 AFSSetRenameInfo( IN PIRP Irp)
1730 {
1731
1732     NTSTATUS ntStatus = STATUS_SUCCESS;
1733     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1734     IO_STATUS_BLOCK stIoSb = {0,0};
1735     AFSFcb *pSrcFcb = NULL, *pTargetDcb = NULL, *pTargetFcb = NULL;
1736     AFSCcb *pSrcCcb = NULL, *pTargetDirCcb = NULL;
1737     PFILE_OBJECT pSrcFileObj = pIrpSp->FileObject;
1738     PFILE_OBJECT pTargetFileObj = pIrpSp->Parameters.SetFile.FileObject;
1739     PFILE_RENAME_INFORMATION pRenameInfo = NULL;
1740     UNICODE_STRING uniTargetName, uniSourceName;
1741     BOOLEAN bReplaceIfExists = FALSE;
1742     UNICODE_STRING uniShortName;
1743     AFSDirectoryCB *pTargetDirEntry = NULL;
1744     ULONG ulTargetCRC = 0;
1745     BOOLEAN bTargetEntryExists = FALSE;
1746     AFSObjectInfoCB *pSrcObject = NULL, *pTargetObject = NULL;
1747     AFSObjectInfoCB *pSrcParentObject = NULL, *pTargetParentObject = NULL;
1748     AFSFileID stNewFid, stTmpTargetFid;
1749     ULONG ulNotificationAction = 0, ulNotifyFilter = 0;
1750     UNICODE_STRING uniFullTargetPath;
1751     BOOLEAN bCommonParent = FALSE;
1752     ULONG oldFileIndex;
1753     BOOLEAN bReleaseVolumeLock = FALSE;
1754     BOOLEAN bReleaseTargetDirLock = FALSE;
1755     BOOLEAN bReleaseSourceDirLock = FALSE;
1756
1757     __Enter
1758     {
1759
1760         bReplaceIfExists = pIrpSp->Parameters.SetFile.ReplaceIfExists;
1761
1762         pSrcFcb = (AFSFcb *)pSrcFileObj->FsContext;
1763         pSrcCcb = (AFSCcb *)pSrcFileObj->FsContext2;
1764
1765         pSrcObject = pSrcFcb->ObjectInformation;
1766
1767         //
1768         // Perform some basic checks to ensure FS integrity
1769         //
1770
1771         if( pSrcFcb->Header.NodeTypeCode == AFS_ROOT_FCB)
1772         {
1773
1774             //
1775             // Can't rename the root directory
1776             //
1777
1778             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1779                           AFS_TRACE_LEVEL_ERROR,
1780                           "AFSSetRenameInfo Attempt to rename root entry\n");
1781
1782             try_return( ntStatus = STATUS_INVALID_PARAMETER);
1783         }
1784
1785         if( pSrcFcb->Header.NodeTypeCode == AFS_DIRECTORY_FCB)
1786         {
1787
1788             //
1789             // If there are any open children then fail the rename
1790             //
1791
1792             if( pSrcFcb->ObjectInformation->Specific.Directory.ChildOpenHandleCount > 0)
1793             {
1794
1795                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1796                               AFS_TRACE_LEVEL_ERROR,
1797                               "AFSSetRenameInfo Attempt to rename directory with open children %wZ\n",
1798                               &pSrcCcb->DirectoryCB->NameInformation.FileName);
1799
1800                 try_return( ntStatus = STATUS_ACCESS_DENIED);
1801             }
1802         }
1803         else
1804         {
1805
1806             if( pSrcFcb->OpenHandleCount > 1)
1807             {
1808
1809                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1810                               AFS_TRACE_LEVEL_ERROR,
1811                               "AFSSetRenameInfo Attempt to rename directory with open references %wZ\n",
1812                               &pSrcCcb->DirectoryCB->NameInformation.FileName);
1813
1814                 try_return( ntStatus = STATUS_ACCESS_DENIED);
1815             }
1816         }
1817
1818         //
1819         // Resolve the target fileobject
1820         //
1821
1822         if( pTargetFileObj == NULL)
1823         {
1824
1825             //
1826             // This is a simple rename. Here the target directory is the same as the source parent directory
1827             // and the name is retrieved from the system buffer information
1828             //
1829
1830             pRenameInfo = (PFILE_RENAME_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
1831
1832             pTargetParentObject = pSrcFcb->ObjectInformation->ParentObjectInformation;
1833
1834             pTargetDcb = pTargetParentObject->Fcb;
1835
1836             uniTargetName.Length = (USHORT)pRenameInfo->FileNameLength;
1837             uniTargetName.Buffer = (PWSTR)&pRenameInfo->FileName;
1838         }
1839         else
1840         {
1841
1842             //
1843             // So here we have the target directory taken from the targetfile object
1844             //
1845
1846             pTargetDcb = (AFSFcb *)pTargetFileObj->FsContext;
1847
1848             pTargetDirCcb = (AFSCcb *)pTargetFileObj->FsContext2;
1849
1850             pTargetParentObject = (AFSObjectInfoCB *)pTargetDcb->ObjectInformation;
1851
1852             //
1853             // Grab the target name which we setup in the IRP_MJ_CREATE handler. By how we set this up
1854             // it is only the target component of the rename operation
1855             //
1856
1857             uniTargetName = *((PUNICODE_STRING)&pTargetFileObj->FileName);
1858         }
1859
1860         //
1861         // We do not allow cross-volume renames to occur
1862         //
1863
1864         if( pTargetParentObject->VolumeCB != pSrcObject->VolumeCB)
1865         {
1866
1867             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1868                           AFS_TRACE_LEVEL_ERROR,
1869                           "AFSSetRenameInfo Attempt to rename directory to different volume %wZ\n",
1870                           &pSrcCcb->DirectoryCB->NameInformation.FileName);
1871
1872             try_return( ntStatus = STATUS_NOT_SAME_DEVICE);
1873         }
1874
1875         //
1876         // If the target exists be sure the ReplaceIfExists flag is set
1877         //
1878
1879         AFSAcquireExcl( pTargetParentObject->VolumeCB->VolumeLock,
1880                         TRUE);
1881
1882         bReleaseVolumeLock = TRUE;
1883
1884         ulTargetCRC = AFSGenerateCRC( &uniTargetName,
1885                                       FALSE);
1886
1887         AFSAcquireExcl( pTargetParentObject->Specific.Directory.DirectoryNodeHdr.TreeLock,
1888                         TRUE);
1889
1890         bReleaseTargetDirLock = TRUE;
1891
1892         if( pTargetParentObject != pSrcFcb->ObjectInformation->ParentObjectInformation)
1893         {
1894             AFSAcquireExcl( pSrcFcb->ObjectInformation->ParentObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock,
1895                             TRUE);
1896
1897             bReleaseSourceDirLock = TRUE;
1898         }
1899
1900         AFSLocateCaseSensitiveDirEntry( pTargetParentObject->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
1901                                         ulTargetCRC,
1902                                         &pTargetDirEntry);
1903
1904         if( pTargetDirEntry == NULL)
1905         {
1906
1907             //
1908             // Missed so perform a case insensitive lookup
1909             //
1910
1911             ulTargetCRC = AFSGenerateCRC( &uniTargetName,
1912                                           TRUE);
1913
1914             AFSLocateCaseInsensitiveDirEntry( pTargetParentObject->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead,
1915                                               ulTargetCRC,
1916                                               &pTargetDirEntry);
1917         }
1918
1919         if( pTargetDirEntry == NULL && RtlIsNameLegalDOS8Dot3( &uniTargetName,
1920                                                                NULL,
1921                                                                NULL))
1922         {
1923             //
1924             // Try the short name
1925             //
1926             AFSLocateShortNameDirEntry( pTargetParentObject->Specific.Directory.ShortNameTree,
1927                                         ulTargetCRC,
1928                                         &pTargetDirEntry);
1929         }
1930
1931         //
1932         // Increment our ref count on the dir entry
1933         //
1934
1935         if( pTargetDirEntry != NULL)
1936         {
1937
1938             ASSERT( pTargetParentObject == pTargetDirEntry->ObjectInformation->ParentObjectInformation);
1939
1940             InterlockedIncrement( &pTargetDirEntry->OpenReferenceCount);
1941
1942             if( !bReplaceIfExists)
1943             {
1944
1945                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1946                               AFS_TRACE_LEVEL_ERROR,
1947                               "AFSSetRenameInfo Attempt to rename directory with target collision %wZ Target %wZ\n",
1948                               &pSrcCcb->DirectoryCB->NameInformation.FileName,
1949                               &pTargetDirEntry->NameInformation.FileName);
1950
1951                 try_return( ntStatus = STATUS_OBJECT_NAME_COLLISION);
1952             }
1953
1954             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1955                           AFS_TRACE_LEVEL_ERROR,
1956                           "AFSSetRenameInfo Target %wZ exists DE %p Count %08lX, performing delete of target\n",
1957                           &pTargetDirEntry->NameInformation.FileName,
1958                           pTargetDirEntry,
1959                           pTargetDirEntry->OpenReferenceCount);
1960
1961             //
1962             // Pull the directory entry from the parent
1963             //
1964
1965             AFSRemoveDirNodeFromParent( pTargetParentObject,
1966                                         pTargetDirEntry,
1967                                         FALSE);
1968
1969             bTargetEntryExists = TRUE;
1970         }
1971         else
1972         {
1973             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1974                           AFS_TRACE_LEVEL_ERROR,
1975                           "AFSSetRenameInfo Target Target does NOT exist, normal rename\n");
1976         }
1977
1978         //
1979         // Extract off the final component name from the Fcb
1980         //
1981
1982         uniSourceName.Length = (USHORT)pSrcCcb->DirectoryCB->NameInformation.FileName.Length;
1983         uniSourceName.MaximumLength = uniSourceName.Length;
1984
1985         uniSourceName.Buffer = pSrcCcb->DirectoryCB->NameInformation.FileName.Buffer;
1986
1987         //
1988         // The quick check to see if they are not really performing a rename
1989         // Do the names match? Only do this where the parent directories are
1990         // the same
1991         //
1992
1993         if( pTargetParentObject == pSrcFcb->ObjectInformation->ParentObjectInformation)
1994         {
1995
1996             bCommonParent = TRUE;
1997
1998             if( FsRtlAreNamesEqual( &uniTargetName,
1999                                     &uniSourceName,
2000                                     FALSE,
2001                                     NULL))
2002             {
2003                 try_return( ntStatus = STATUS_SUCCESS);
2004             }
2005         }
2006         else
2007         {
2008
2009             bCommonParent = FALSE;
2010         }
2011
2012         //
2013         // We need to remove the DirEntry from the parent node, update the index
2014         // and reinsert it into the parent tree. Note that for entries with the
2015         // same parent we do not pull the node from the enumeration list
2016         //
2017
2018         AFSRemoveDirNodeFromParent( pSrcFcb->ObjectInformation->ParentObjectInformation,
2019                                     pSrcCcb->DirectoryCB,
2020                                     !bCommonParent);
2021
2022         oldFileIndex = pSrcCcb->DirectoryCB->FileIndex;
2023
2024         if( !bCommonParent)
2025         {
2026
2027             //
2028             // We always need to update the FileIndex since this entry will be put at the 'end'
2029             // of the enumeraiton list. If we don't it will cause recursion ... We do this
2030             // here to cover any failures which might occur below
2031             //
2032
2033             pSrcCcb->DirectoryCB->FileIndex =
2034                             (ULONG)InterlockedIncrement( &pTargetDcb->ObjectInformation->ParentObjectInformation->Specific.Directory.DirectoryNodeHdr.ContentIndex);
2035         }
2036
2037         //
2038         // OK, this is a simple rename. Issue the rename
2039         // request to the service.
2040         //
2041
2042         ntStatus = AFSNotifyRename( pSrcFcb->ObjectInformation,
2043                                     pSrcFcb->ObjectInformation->ParentObjectInformation,
2044                                     pTargetDcb->ObjectInformation,
2045                                     pSrcCcb->DirectoryCB,
2046                                     &uniTargetName,
2047                                     &stNewFid);
2048
2049         if( !NT_SUCCESS( ntStatus))
2050         {
2051
2052             //
2053             // Attempt to re-insert the directory entry
2054             //
2055
2056             pSrcCcb->DirectoryCB->FileIndex = oldFileIndex;
2057             AFSInsertDirectoryNode( pSrcFcb->ObjectInformation->ParentObjectInformation,
2058                                     pSrcCcb->DirectoryCB,
2059                                     !bCommonParent);
2060
2061             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2062                           AFS_TRACE_LEVEL_ERROR,
2063                           "AFSSetRenameInfo Failed rename of %wZ to target %wZ Status %08lX\n",
2064                           &pSrcCcb->DirectoryCB->NameInformation.FileName,
2065                           &uniTargetName,
2066                           ntStatus);
2067
2068             try_return( ntStatus);
2069         }
2070
2071         //
2072         // Set the notification up for the source file
2073         //
2074
2075         if( pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation == pTargetParentObject &&
2076             !bTargetEntryExists)
2077         {
2078
2079             ulNotificationAction = FILE_ACTION_RENAMED_OLD_NAME;
2080         }
2081         else
2082         {
2083
2084             ulNotificationAction = FILE_ACTION_REMOVED;
2085         }
2086
2087         if( pSrcCcb->DirectoryCB->ObjectInformation->FileType == AFS_FILE_TYPE_DIRECTORY)
2088         {
2089
2090             ulNotifyFilter = FILE_NOTIFY_CHANGE_DIR_NAME;
2091         }
2092         else
2093         {
2094
2095             ulNotifyFilter = FILE_NOTIFY_CHANGE_FILE_NAME;
2096         }
2097
2098         AFSFsRtlNotifyFullReportChange( pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation,
2099                                         pSrcCcb,
2100                                         (ULONG)ulNotifyFilter,
2101                                         (ULONG)ulNotificationAction);
2102
2103         //
2104         // Update the name in the dir entry.
2105         //
2106
2107         ntStatus = AFSUpdateDirEntryName( pSrcCcb->DirectoryCB,
2108                                           &uniTargetName);
2109
2110         if( !NT_SUCCESS( ntStatus))
2111         {
2112
2113             //
2114             // Attempt to re-insert the directory entry
2115             //
2116
2117             pSrcCcb->DirectoryCB->FileIndex = oldFileIndex;
2118             AFSInsertDirectoryNode( pSrcFcb->ObjectInformation->ParentObjectInformation,
2119                                     pSrcCcb->DirectoryCB,
2120                                     !bCommonParent);
2121
2122             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2123                           AFS_TRACE_LEVEL_ERROR,
2124                           "AFSSetRenameInfo Failed update of dir entry %wZ to target %wZ Status %08lX\n",
2125                           &pSrcCcb->DirectoryCB->NameInformation.FileName,
2126                           &uniTargetName,
2127                           ntStatus);
2128
2129             try_return( ntStatus);
2130         }
2131
2132         //
2133         // Update the object information block, if needed
2134         //
2135
2136         if( !AFSIsEqualFID( &pSrcObject->FileId,
2137                             &stNewFid))
2138         {
2139
2140             //
2141             // Remove the old information entry
2142             //
2143
2144             AFSRemoveHashEntry( &pSrcObject->VolumeCB->ObjectInfoTree.TreeHead,
2145                                 &pSrcObject->TreeEntry);
2146
2147             RtlCopyMemory( &pSrcObject->FileId,
2148                            &stNewFid,
2149                            sizeof( AFSFileID));
2150
2151             //
2152             // Insert the entry into the new object table.
2153             //
2154
2155             pSrcObject->TreeEntry.HashIndex = AFSCreateLowIndex( &pSrcObject->FileId);
2156
2157             if( pSrcObject->VolumeCB->ObjectInfoTree.TreeHead == NULL)
2158             {
2159
2160                 pSrcObject->VolumeCB->ObjectInfoTree.TreeHead = &pSrcObject->TreeEntry;
2161             }
2162             else
2163             {
2164
2165                 AFSInsertHashEntry( pSrcObject->VolumeCB->ObjectInfoTree.TreeHead,
2166                                     &pSrcObject->TreeEntry);
2167             }
2168         }
2169
2170         //
2171         // Update the hash values for the name trees.
2172         //
2173
2174         pSrcCcb->DirectoryCB->CaseSensitiveTreeEntry.HashIndex = AFSGenerateCRC( &pSrcCcb->DirectoryCB->NameInformation.FileName,
2175                                                                                  FALSE);
2176
2177         pSrcCcb->DirectoryCB->CaseInsensitiveTreeEntry.HashIndex = AFSGenerateCRC( &pSrcCcb->DirectoryCB->NameInformation.FileName,
2178                                                                                    TRUE);
2179
2180         if( pSrcCcb->DirectoryCB->NameInformation.ShortNameLength > 0 &&
2181             !RtlIsNameLegalDOS8Dot3( &pSrcCcb->DirectoryCB->NameInformation.FileName,
2182                                      NULL,
2183                                      NULL))
2184         {
2185
2186             uniShortName.Length = pSrcCcb->DirectoryCB->NameInformation.ShortNameLength;
2187             uniShortName.MaximumLength = uniShortName.Length;
2188             uniShortName.Buffer = pSrcCcb->DirectoryCB->NameInformation.ShortName;
2189
2190             pSrcCcb->DirectoryCB->Type.Data.ShortNameTreeEntry.HashIndex = AFSGenerateCRC( &uniShortName,
2191                                                                                            TRUE);
2192
2193             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2194                           AFS_TRACE_LEVEL_VERBOSE,
2195                           "AFSSetRenameInfo Initialized short name hash for %wZ longname %wZ\n",
2196                           &uniShortName,
2197                           &pSrcCcb->DirectoryCB->NameInformation.FileName);
2198         }
2199         else
2200         {
2201
2202             pSrcCcb->DirectoryCB->Type.Data.ShortNameTreeEntry.HashIndex = 0;
2203         }
2204
2205         if( !bCommonParent)
2206         {
2207
2208             //
2209             // Update the file index for the object in the new parent
2210             //
2211
2212             pSrcCcb->DirectoryCB->FileIndex = (ULONG)InterlockedIncrement( &pTargetParentObject->Specific.Directory.DirectoryNodeHdr.ContentIndex);
2213         }
2214
2215         //
2216         // Re-insert the directory entry
2217         //
2218
2219         AFSInsertDirectoryNode( pTargetParentObject,
2220                                 pSrcCcb->DirectoryCB,
2221                                 !bCommonParent);
2222
2223         //
2224         // Update the parent pointer in the source object if they are different
2225         //
2226
2227         if( pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation != pTargetParentObject)
2228         {
2229
2230             InterlockedDecrement( &pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation->Specific.Directory.ChildOpenHandleCount);
2231
2232             InterlockedDecrement( &pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation->Specific.Directory.ChildOpenReferenceCount);
2233
2234             InterlockedIncrement( &pTargetParentObject->Specific.Directory.ChildOpenHandleCount);
2235
2236             InterlockedIncrement( &pTargetParentObject->Specific.Directory.ChildOpenReferenceCount);
2237
2238             pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation = pTargetParentObject;
2239
2240             ulNotificationAction = FILE_ACTION_ADDED;
2241         }
2242         else
2243         {
2244
2245             ulNotificationAction = FILE_ACTION_RENAMED_NEW_NAME;
2246         }
2247
2248         //
2249         // Now update the notification for the target file
2250         //
2251
2252         AFSFsRtlNotifyFullReportChange( pTargetParentObject->ParentObjectInformation,
2253                                         pSrcCcb,
2254                                         (ULONG)ulNotifyFilter,
2255                                         (ULONG)ulNotificationAction);
2256
2257         //
2258         // If we performed the rename of the target because it existed, we now need to
2259         // delete the tmp target we created above
2260         //
2261
2262         if( bTargetEntryExists)
2263         {
2264
2265             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2266                           AFS_TRACE_LEVEL_VERBOSE,
2267                           "AFSSetRenameInfo Setting DELETE flag in dir entry %p name %wZ\n",
2268                           pTargetDirEntry,
2269                           &pTargetDirEntry->NameInformation.FileName);
2270
2271             SetFlag( pTargetDirEntry->Flags, AFS_DIR_ENTRY_DELETED);
2272
2273             //
2274             // Try and purge the cache map if this is a file
2275             //
2276
2277             if( pTargetDirEntry->ObjectInformation->FileType == AFS_FILE_TYPE_FILE &&
2278                 pTargetDirEntry->ObjectInformation->Fcb != NULL &&
2279                 pTargetDirEntry->OpenReferenceCount > 1)
2280             {
2281
2282                 pTargetFcb = pTargetDirEntry->ObjectInformation->Fcb;
2283
2284                 AFSAcquireExcl( &pTargetFcb->NPFcb->Resource,
2285                                 TRUE);
2286
2287                 //
2288                 // Close the section in the event it was mapped
2289                 //
2290
2291                 if( !MmForceSectionClosed( &pTargetFcb->NPFcb->SectionObjectPointers,
2292                                            TRUE))
2293                 {
2294
2295                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2296                                   AFS_TRACE_LEVEL_ERROR,
2297                                   "AFSSetRenameInfo Failed to delete section for target file %wZ\n",
2298                                   &pTargetDirEntry->NameInformation.FileName);
2299                 }
2300
2301                 AFSReleaseResource( &pTargetFcb->NPFcb->Resource);
2302             }
2303
2304             ASSERT( pTargetDirEntry->OpenReferenceCount > 0);
2305
2306             InterlockedDecrement( &pTargetDirEntry->OpenReferenceCount); // The count we added above
2307
2308             if( pTargetDirEntry->OpenReferenceCount == 0)
2309             {
2310
2311                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2312                               AFS_TRACE_LEVEL_VERBOSE,
2313                               "AFSSetRenameInfo Deleting dir entry %p name %wZ\n",
2314                               pTargetDirEntry,
2315                               &pTargetDirEntry->NameInformation.FileName);
2316
2317                 AFSDeleteDirEntry( pTargetParentObject,
2318                                    pTargetDirEntry);
2319             }
2320
2321             pTargetDirEntry = NULL;
2322         }
2323
2324 try_exit:
2325
2326
2327         if( !NT_SUCCESS( ntStatus))
2328         {
2329
2330             if( bTargetEntryExists)
2331             {
2332                 AFSInsertDirectoryNode( pTargetDirEntry->ObjectInformation->ParentObjectInformation,
2333                                         pTargetDirEntry,
2334                                         FALSE);
2335             }
2336         }
2337
2338         if( pTargetDirEntry != NULL)
2339         {
2340
2341             InterlockedDecrement( &pTargetDirEntry->OpenReferenceCount);
2342         }
2343
2344         if( bReleaseVolumeLock)
2345         {
2346             AFSReleaseResource( pTargetParentObject->VolumeCB->VolumeLock);
2347         }
2348
2349         if( bReleaseTargetDirLock)
2350         {
2351             AFSReleaseResource( pTargetParentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
2352         }
2353
2354         if( bReleaseSourceDirLock)
2355         {
2356             AFSReleaseResource( pSrcFcb->ObjectInformation->ParentObjectInformation->Specific.Directory.DirectoryNodeHdr.TreeLock);
2357         }
2358     }
2359
2360     return ntStatus;
2361 }
2362
2363 NTSTATUS
2364 AFSSetPositionInfo( IN PIRP Irp,
2365                     IN AFSDirectoryCB *DirectoryCB)
2366 {
2367     NTSTATUS ntStatus = STATUS_SUCCESS;
2368     PFILE_POSITION_INFORMATION pBuffer;
2369     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2370
2371     pBuffer = (PFILE_POSITION_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
2372
2373     pIrpSp->FileObject->CurrentByteOffset.QuadPart = pBuffer->CurrentByteOffset.QuadPart;
2374
2375     return ntStatus;
2376 }
2377
2378 NTSTATUS
2379 AFSSetAllocationInfo( IN PIRP Irp,
2380                       IN AFSDirectoryCB *DirectoryCB)
2381 {
2382     NTSTATUS ntStatus = STATUS_SUCCESS;
2383     PFILE_ALLOCATION_INFORMATION pBuffer;
2384     BOOLEAN bReleasePaging = FALSE;
2385     BOOLEAN bTellCc = FALSE;
2386     BOOLEAN bTellService = FALSE;
2387     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2388     PFILE_OBJECT pFileObject = pIrpSp->FileObject;
2389     AFSFcb *pFcb = NULL;
2390     AFSCcb *pCcb = NULL;
2391     LARGE_INTEGER liSaveAlloc;
2392     LARGE_INTEGER liSaveFileSize;
2393     LARGE_INTEGER liSaveVDL;
2394
2395     pBuffer = (PFILE_ALLOCATION_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
2396
2397     pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
2398
2399     pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
2400
2401     //
2402     // save values to put back
2403     //
2404     liSaveAlloc = pFcb->Header.AllocationSize;
2405     liSaveFileSize = pFcb->Header.FileSize;
2406     liSaveVDL = pFcb->Header.ValidDataLength;
2407
2408     if( pFcb->Header.AllocationSize.QuadPart == pBuffer->AllocationSize.QuadPart ||
2409         pIrpSp->Parameters.SetFile.AdvanceOnly)
2410     {
2411         return STATUS_SUCCESS ;
2412     }
2413
2414     if( pFcb->Header.AllocationSize.QuadPart > pBuffer->AllocationSize.QuadPart)
2415     {
2416         //
2417         // Truncating the file
2418         //
2419         if( !MmCanFileBeTruncated( pFileObject->SectionObjectPointer,
2420                                    &pBuffer->AllocationSize))
2421         {
2422
2423             ntStatus = STATUS_USER_MAPPED_FILE ;
2424         }
2425         else
2426         {
2427             //
2428             // If this is a truncation we need to grab the paging IO resource.
2429             //
2430             AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
2431                           AFS_TRACE_LEVEL_VERBOSE,
2432                           "AFSSetAllocationInfo Acquiring Fcb PagingIo lock %08lX EXCL %08lX\n",
2433                           &pFcb->NPFcb->PagingResource,
2434                           PsGetCurrentThread());
2435
2436             AFSAcquireExcl( &pFcb->NPFcb->PagingResource,
2437                             TRUE);
2438
2439             bReleasePaging = TRUE;
2440
2441
2442             pFcb->Header.AllocationSize = pBuffer->AllocationSize;
2443
2444             pFcb->ObjectInformation->AllocationSize = pBuffer->AllocationSize;
2445
2446             //
2447             // Tell Cc that Allocation is moved.
2448             //
2449             bTellCc = TRUE;
2450
2451             if( pFcb->Header.FileSize.QuadPart > pBuffer->AllocationSize.QuadPart)
2452             {
2453                 //
2454                 // We are pulling the EOF back as well so we need to tell
2455                 // the service.
2456                 //
2457                 bTellService = TRUE;
2458
2459                 pFcb->Header.FileSize = pBuffer->AllocationSize;
2460
2461                 pFcb->ObjectInformation->EndOfFile = pBuffer->AllocationSize;
2462             }
2463
2464         }
2465     }
2466     else
2467     {
2468         //
2469         // Tell Cc if allocation is increased.
2470         //
2471         bTellCc = pBuffer->AllocationSize.QuadPart > pFcb->Header.AllocationSize.QuadPart;
2472
2473         pFcb->Header.AllocationSize = pBuffer->AllocationSize;
2474
2475         pFcb->ObjectInformation->AllocationSize = pBuffer->AllocationSize;
2476     }
2477
2478     //
2479     // Now Tell the server if we have to
2480     //
2481     if (bTellService)
2482     {
2483         ntStatus = AFSUpdateFileInformation( &pFcb->ObjectInformation->ParentObjectInformation->FileId,
2484                                              pFcb->ObjectInformation,
2485                                              &pFcb->AuthGroup);
2486     }
2487
2488     if (NT_SUCCESS(ntStatus))
2489     {
2490         //
2491         // Trim extents if we told the service - the update has done an implicit
2492         // trim at the service.
2493         //
2494         if (bTellService)
2495         {
2496             AFSTrimExtents( pFcb,
2497                             &pFcb->Header.FileSize);
2498         }
2499
2500         KeQuerySystemTime( &pFcb->ObjectInformation->ChangeTime);
2501
2502         SetFlag( pFcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_CHANGE_TIME);
2503
2504         if (bTellCc &&
2505             CcIsFileCached( pFileObject))
2506         {
2507             CcSetFileSizes( pFileObject,
2508                             (PCC_FILE_SIZES)&pFcb->Header.AllocationSize);
2509         }
2510     }
2511     else
2512     {
2513         //
2514         // Put the saved values back
2515         //
2516         pFcb->Header.ValidDataLength = liSaveVDL;
2517         pFcb->Header.FileSize = liSaveFileSize;
2518         pFcb->Header.AllocationSize = liSaveAlloc;
2519         pFcb->ObjectInformation->EndOfFile = liSaveFileSize;
2520         pFcb->ObjectInformation->AllocationSize = liSaveAlloc;
2521     }
2522
2523     if( bReleasePaging)
2524     {
2525
2526         AFSReleaseResource( &pFcb->NPFcb->PagingResource);
2527     }
2528
2529     return ntStatus;
2530 }
2531
2532 NTSTATUS
2533 AFSSetEndOfFileInfo( IN PIRP Irp,
2534                      IN AFSDirectoryCB *DirectoryCB)
2535 {
2536     NTSTATUS ntStatus = STATUS_SUCCESS;
2537     PFILE_END_OF_FILE_INFORMATION pBuffer;
2538     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2539     PFILE_OBJECT pFileObject = pIrpSp->FileObject;
2540     LARGE_INTEGER liSaveSize;
2541     LARGE_INTEGER liSaveVDL;
2542     LARGE_INTEGER liSaveAlloc;
2543     BOOLEAN bModified = FALSE;
2544     BOOLEAN bReleasePaging = FALSE;
2545     BOOLEAN bTruncated = FALSE;
2546     AFSFcb *pFcb = NULL;
2547     AFSCcb *pCcb = NULL;
2548
2549     pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
2550
2551     pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
2552
2553     pBuffer = (PFILE_END_OF_FILE_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
2554
2555     liSaveSize = pFcb->Header.FileSize;
2556     liSaveAlloc = pFcb->Header.AllocationSize;
2557     liSaveVDL = pFcb->Header.ValidDataLength;
2558
2559     if( pFcb->Header.FileSize.QuadPart != pBuffer->EndOfFile.QuadPart &&
2560         !pIrpSp->Parameters.SetFile.AdvanceOnly)
2561     {
2562
2563         if( pBuffer->EndOfFile.QuadPart < pFcb->Header.FileSize.QuadPart)
2564         {
2565
2566             // Truncating the file
2567             if( !MmCanFileBeTruncated( pFileObject->SectionObjectPointer,
2568                                        &pBuffer->EndOfFile))
2569             {
2570
2571                 ntStatus = STATUS_USER_MAPPED_FILE;
2572             }
2573             else
2574             {
2575                 //
2576                 // If this is a truncation we need to grab the paging
2577                 // IO resource.
2578                 //
2579                 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
2580                               AFS_TRACE_LEVEL_VERBOSE,
2581                               "AFSSetAllocationInfo Acquiring Fcb PagingIo lock %08lX EXCL %08lX\n",
2582                               &pFcb->NPFcb->PagingResource,
2583                               PsGetCurrentThread());
2584
2585                 AFSAcquireExcl( &pFcb->NPFcb->PagingResource,
2586                                 TRUE);
2587
2588                 bReleasePaging = TRUE;
2589
2590                 pFcb->Header.AllocationSize = pBuffer->EndOfFile;
2591
2592                 pFcb->Header.FileSize = pBuffer->EndOfFile;
2593
2594                 pFcb->ObjectInformation->EndOfFile = pBuffer->EndOfFile;
2595
2596                 pFcb->ObjectInformation->AllocationSize = pBuffer->EndOfFile;
2597
2598                 if( pFcb->Header.ValidDataLength.QuadPart > pFcb->Header.FileSize.QuadPart)
2599                 {
2600
2601                     pFcb->Header.ValidDataLength = pFcb->Header.FileSize;
2602                 }
2603
2604                 bTruncated = TRUE;
2605
2606                 bModified = TRUE;
2607             }
2608         }
2609         else
2610         {
2611             //
2612             // extending the file, move EOF
2613             //
2614
2615             pFcb->Header.FileSize = pBuffer->EndOfFile;
2616
2617             pFcb->ObjectInformation->EndOfFile = pBuffer->EndOfFile;
2618
2619             if (pFcb->Header.FileSize.QuadPart > pFcb->Header.AllocationSize.QuadPart)
2620             {
2621                 //
2622                 // And Allocation as needed.
2623                 //
2624                 pFcb->Header.AllocationSize = pBuffer->EndOfFile;
2625
2626                 pFcb->ObjectInformation->AllocationSize = pBuffer->EndOfFile;
2627             }
2628
2629             bModified = TRUE;
2630         }
2631     }
2632
2633     if (bModified)
2634     {
2635
2636         KeQuerySystemTime( &pFcb->ObjectInformation->ChangeTime);
2637
2638         SetFlag( pFcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_CHANGE_TIME);
2639
2640         //
2641         // Tell the server
2642         //
2643
2644         ntStatus = AFSUpdateFileInformation( &pFcb->ObjectInformation->ParentObjectInformation->FileId,
2645                                              pFcb->ObjectInformation,
2646                                              &pFcb->AuthGroup);
2647
2648         if( NT_SUCCESS(ntStatus))
2649         {
2650             //
2651             // We are now good to go so tell CC.
2652             //
2653             CcSetFileSizes( pFileObject,
2654                             (PCC_FILE_SIZES)&pFcb->Header.AllocationSize);
2655
2656             //
2657             // And give up those extents
2658             //
2659             if( bTruncated)
2660             {
2661
2662                 AFSTrimExtents( pFcb,
2663                                 &pFcb->Header.FileSize);
2664             }
2665         }
2666         else
2667         {
2668             pFcb->Header.ValidDataLength = liSaveVDL;
2669             pFcb->Header.FileSize = liSaveSize;
2670             pFcb->Header.AllocationSize = liSaveAlloc;
2671             pFcb->ObjectInformation->EndOfFile = liSaveSize;
2672             pFcb->ObjectInformation->AllocationSize = liSaveAlloc;
2673         }
2674     }
2675
2676     if( bReleasePaging)
2677     {
2678
2679         AFSReleaseResource( &pFcb->NPFcb->PagingResource);
2680     }
2681
2682     return ntStatus;
2683 }
2684
2685 NTSTATUS
2686 AFSProcessShareSetInfo( IN IRP *Irp,
2687                         IN AFSFcb *Fcb,
2688                         IN AFSCcb *Ccb)
2689 {
2690
2691     NTSTATUS ntStatus = STATUS_SUCCESS;
2692     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2693     ULONG ulOutputBufferLen = 0, ulInputBufferLen;
2694     FILE_INFORMATION_CLASS ulFileInformationClass;
2695     void *pPipeInfo = NULL;
2696
2697     __Enter
2698     {
2699         ulFileInformationClass = pIrpSp->Parameters.SetFile.FileInformationClass;
2700
2701         AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
2702                       AFS_TRACE_LEVEL_VERBOSE,
2703                       "AFSProcessShareSetInfo On pipe %wZ Class %08lX\n",
2704                       &Ccb->DirectoryCB->NameInformation.FileName,
2705                       ulFileInformationClass);
2706
2707         pPipeInfo = AFSLockSystemBuffer( Irp,
2708                                          pIrpSp->Parameters.SetFile.Length);
2709
2710         if( pPipeInfo == NULL)
2711         {
2712
2713             AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
2714                           AFS_TRACE_LEVEL_ERROR,
2715                           "AFSProcessShareSetInfo Failed to lock buffer on pipe %wZ\n",
2716                           &Ccb->DirectoryCB->NameInformation.FileName);
2717
2718             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2719         }
2720
2721         //
2722         // Send the request to the service
2723         //
2724
2725         ntStatus = AFSNotifySetPipeInfo( Ccb,
2726                                          (ULONG)ulFileInformationClass,
2727                                          pIrpSp->Parameters.SetFile.Length,
2728                                          pPipeInfo);
2729
2730         if( !NT_SUCCESS( ntStatus))
2731         {
2732
2733             AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
2734                           AFS_TRACE_LEVEL_ERROR,
2735                           "AFSProcessShareSetInfo Failed to send request to service on pipe %wZ Status %08lX\n",
2736                           &Ccb->DirectoryCB->NameInformation.FileName,
2737                           ntStatus);
2738
2739             try_return( ntStatus);
2740         }
2741
2742         AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
2743                       AFS_TRACE_LEVEL_VERBOSE,
2744                       "AFSProcessShareSetInfo Completed request on pipe %wZ Class %08lX\n",
2745                       &Ccb->DirectoryCB->NameInformation.FileName,
2746                       ulFileInformationClass);
2747
2748 try_exit:
2749
2750         NOTHING;
2751     }
2752
2753     return ntStatus;
2754 }
2755
2756 NTSTATUS
2757 AFSProcessShareQueryInfo( IN IRP *Irp,
2758                           IN AFSFcb *Fcb,
2759                           IN AFSCcb *Ccb)
2760 {
2761
2762     NTSTATUS ntStatus = STATUS_SUCCESS;
2763     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2764     ULONG ulOutputBufferLen = 0, ulInputBufferLen;
2765     FILE_INFORMATION_CLASS ulFileInformationClass;
2766     void *pPipeInfo = NULL;
2767
2768     __Enter
2769     {
2770
2771         ulFileInformationClass = pIrpSp->Parameters.QueryFile.FileInformationClass;
2772
2773         AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
2774                       AFS_TRACE_LEVEL_VERBOSE,
2775                       "AFSProcessShareQueryInfo On pipe %wZ Class %08lX\n",
2776                       &Ccb->DirectoryCB->NameInformation.FileName,
2777                       ulFileInformationClass);
2778
2779         pPipeInfo = AFSLockSystemBuffer( Irp,
2780                                          pIrpSp->Parameters.QueryFile.Length);
2781
2782         if( pPipeInfo == NULL)
2783         {
2784
2785             AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
2786                           AFS_TRACE_LEVEL_ERROR,
2787                           "AFSProcessShareQueryInfo Failed to lock buffer on pipe %wZ\n",
2788                           &Ccb->DirectoryCB->NameInformation.FileName);
2789
2790             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
2791         }
2792
2793         //
2794         // Send the request to the service
2795         //
2796
2797         ntStatus = AFSNotifyQueryPipeInfo( Ccb,
2798                                            (ULONG)ulFileInformationClass,
2799                                            pIrpSp->Parameters.QueryFile.Length,
2800                                            pPipeInfo,
2801                                            (ULONG *)&Irp->IoStatus.Information);
2802
2803         if( !NT_SUCCESS( ntStatus))
2804         {
2805
2806             AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
2807                           AFS_TRACE_LEVEL_ERROR,
2808                           "AFSProcessShareQueryInfo Failed to send request to service on pipe %wZ Status %08lX\n",
2809                           &Ccb->DirectoryCB->NameInformation.FileName,
2810                           ntStatus);
2811
2812             try_return( ntStatus);
2813         }
2814
2815         AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
2816                       AFS_TRACE_LEVEL_VERBOSE,
2817                       "AFSProcessShareQueryInfo Completed request on pipe %wZ Class %08lX\n",
2818                       &Ccb->DirectoryCB->NameInformation.FileName,
2819                       ulFileInformationClass);
2820
2821 try_exit:
2822
2823         NOTHING;
2824     }
2825
2826     return ntStatus;
2827 }
2828
2829 NTSTATUS
2830 AFSProcessPIOCtlQueryInfo( IN IRP *Irp,
2831                            IN AFSFcb *Fcb,
2832                            IN AFSCcb *Ccb,
2833                            IN OUT LONG *Length)
2834 {
2835
2836     NTSTATUS ntStatus = STATUS_SUCCESS;
2837     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2838     FILE_INFORMATION_CLASS ulFileInformationClass;
2839
2840     __Enter
2841     {
2842
2843         ulFileInformationClass = pIrpSp->Parameters.QueryFile.FileInformationClass;
2844
2845         switch( ulFileInformationClass)
2846         {
2847
2848             case FileBasicInformation:
2849             {
2850
2851                 if ( *Length >= sizeof( FILE_BASIC_INFORMATION))
2852                 {
2853                     PFILE_BASIC_INFORMATION pBasic = (PFILE_BASIC_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
2854
2855                     pBasic->CreationTime.QuadPart = 0;
2856                     pBasic->LastAccessTime.QuadPart = 0;
2857                     pBasic->ChangeTime.QuadPart = 0;
2858                     pBasic->LastWriteTime.QuadPart = 0;
2859                     pBasic->FileAttributes = FILE_ATTRIBUTE_SYSTEM;
2860
2861                     *Length -= sizeof( FILE_BASIC_INFORMATION);
2862                 }
2863                 else
2864                 {
2865                     ntStatus = STATUS_BUFFER_OVERFLOW;
2866                 }
2867
2868                 break;
2869             }
2870
2871             case FileStandardInformation:
2872             {
2873
2874                 if ( *Length >= sizeof( FILE_STANDARD_INFORMATION))
2875                 {
2876                     PFILE_STANDARD_INFORMATION pStandard = (PFILE_STANDARD_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
2877
2878                     pStandard->NumberOfLinks = 1;
2879                     pStandard->DeletePending = 0;
2880                     pStandard->AllocationSize.QuadPart = 4096;
2881                     pStandard->EndOfFile.QuadPart = 4096;
2882                     pStandard->Directory = 0;
2883
2884                     *Length -= sizeof( FILE_STANDARD_INFORMATION);
2885                 }
2886                 else
2887                 {
2888                     ntStatus = STATUS_BUFFER_OVERFLOW;
2889                 }
2890
2891                 break;
2892             }
2893
2894             case FileNameInformation:
2895             {
2896
2897                 ULONG ulCopyLength = 0;
2898                 AFSFcb *pFcb = NULL;
2899                 AFSCcb *pCcb = NULL;
2900                 USHORT usFullNameLength = 0;
2901                 PFILE_NAME_INFORMATION pNameInfo = (PFILE_NAME_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
2902                 UNICODE_STRING uniName;
2903
2904                 pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
2905                 pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
2906
2907                 if( *Length < FIELD_OFFSET( FILE_NAME_INFORMATION, FileName))
2908                 {
2909                     ntStatus = STATUS_BUFFER_TOO_SMALL;
2910                     break;
2911                 }
2912
2913                 RtlZeroMemory( pNameInfo,
2914                                *Length);
2915
2916                 usFullNameLength = sizeof( WCHAR) +
2917                                             AFSServerName.Length +
2918                                             pCcb->FullFileName.Length;
2919
2920                 if( *Length >= (LONG)(FIELD_OFFSET( FILE_NAME_INFORMATION, FileName) + (LONG)usFullNameLength))
2921                 {
2922                     ulCopyLength = (LONG)usFullNameLength;
2923                 }
2924                 else
2925                 {
2926                     ulCopyLength = *Length - FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
2927                     ntStatus = STATUS_BUFFER_OVERFLOW;
2928                 }
2929
2930                 pNameInfo->FileNameLength = (ULONG)usFullNameLength;
2931
2932                 *Length -= FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
2933
2934                 if( ulCopyLength > 0)
2935                 {
2936
2937                     pNameInfo->FileName[ 0] = L'\\';
2938                     ulCopyLength -= sizeof( WCHAR);
2939
2940                     *Length -= sizeof( WCHAR);
2941
2942                     if( ulCopyLength >= AFSServerName.Length)
2943                     {
2944
2945                         RtlCopyMemory( &pNameInfo->FileName[ 1],
2946                                        AFSServerName.Buffer,
2947                                        AFSServerName.Length);
2948
2949                         ulCopyLength -= AFSServerName.Length;
2950                         *Length -= AFSServerName.Length;
2951
2952                         if( ulCopyLength >= pCcb->FullFileName.Length)
2953                         {
2954
2955                             RtlCopyMemory( &pNameInfo->FileName[ 1 + (AFSServerName.Length/sizeof( WCHAR))],
2956                                            pCcb->FullFileName.Buffer,
2957                                            pCcb->FullFileName.Length);
2958
2959                             ulCopyLength -= pCcb->FullFileName.Length;
2960                             *Length -= pCcb->FullFileName.Length;
2961
2962                             uniName.Length = (USHORT)pNameInfo->FileNameLength;
2963                             uniName.MaximumLength = uniName.Length;
2964                             uniName.Buffer = pNameInfo->FileName;
2965                         }
2966                         else
2967                         {
2968
2969                             RtlCopyMemory( &pNameInfo->FileName[ 1 + (AFSServerName.Length/sizeof( WCHAR))],
2970                                            pCcb->FullFileName.Buffer,
2971                                            ulCopyLength);
2972
2973                             *Length -= ulCopyLength;
2974
2975                             uniName.Length = (USHORT)(sizeof( WCHAR) + AFSServerName.Length + ulCopyLength);
2976                             uniName.MaximumLength = uniName.Length;
2977                             uniName.Buffer = pNameInfo->FileName;
2978                         }
2979
2980                         AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
2981                                       AFS_TRACE_LEVEL_VERBOSE,
2982                                       "AFSProcessPIOCtlQueryInfo (FileNameInformation) Returning %wZ\n",
2983                                       &uniName);
2984                     }
2985                 }
2986
2987                 break;
2988             }
2989
2990             case FileInternalInformation:
2991             {
2992
2993                 PFILE_INTERNAL_INFORMATION pInternalInfo = (PFILE_INTERNAL_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
2994
2995                 if( *Length >= sizeof( FILE_INTERNAL_INFORMATION))
2996                 {
2997
2998                     pInternalInfo->IndexNumber.HighPart = 0;
2999
3000                     pInternalInfo->IndexNumber.LowPart = 0;
3001
3002                     *Length -= sizeof( FILE_INTERNAL_INFORMATION);
3003                 }
3004                 else
3005                 {
3006
3007                     ntStatus = STATUS_BUFFER_TOO_SMALL;
3008                 }
3009
3010                 break;
3011             }
3012
3013             default:
3014             {
3015                 ntStatus = STATUS_INVALID_PARAMETER;
3016
3017                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3018                               AFS_TRACE_LEVEL_WARNING,
3019                               "AFSProcessPIOCtlQueryInfo Not handling request %08lX\n",
3020                               ulFileInformationClass);
3021
3022                 break;
3023             }
3024         }
3025     }
3026
3027     return ntStatus;
3028 }
3029