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         else if( pFcb->Header.NodeTypeCode == AFS_INVALID_FCB)
 143         {
 144             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 145                           AFS_TRACE_LEVEL_VERBOSE,
 146                           "AFSQueryFileInfo request against Invalid Fcb\n");
 147
 148             try_return( ntStatus = STATUS_ACCESS_DENIED);
 149         }
 150
 151         //
 152         // Process the request
 153         //
 154
 155         switch( stFileInformationClass)
 156         {
 157
 158             case FileAllInformation:
 159             {
 160
 161                 PFILE_ALL_INFORMATION pAllInfo;
 162
 163                 //
 164                 //  For the all information class we'll typecast a local
 165                 //  pointer to the output buffer and then call the
 166                 //  individual routines to fill in the buffer.
 167                 //
 168
 169                 pAllInfo = (PFILE_ALL_INFORMATION)pBuffer;
 170
 171                 ntStatus = AFSQueryBasicInfo( Irp,
 172                                               pCcb->DirectoryCB,
 173                                               &pAllInfo->BasicInformation,
 174                                               &lLength);
 175
 176                 if( !NT_SUCCESS( ntStatus))
 177                 {
 178
 179                     try_return( ntStatus);
 180                 }
 181
 182                 ntStatus = AFSQueryStandardInfo( Irp,
 183                                                  pCcb->DirectoryCB,
 184                                                  &pAllInfo->StandardInformation,
 185                                                  &lLength);
 186
 187                 if( !NT_SUCCESS( ntStatus))
 188                 {
 189
 190                     try_return( ntStatus);
 191                 }
 192
 193                 ntStatus = AFSQueryInternalInfo( Irp,
 194                                                  pFcb,
 195                                                  &pAllInfo->InternalInformation,
 196                                                  &lLength);
 197
 198                 if( !NT_SUCCESS( ntStatus))
 199                 {
 200
 201                     try_return( ntStatus);
 202                 }
 203
 204                 ntStatus = AFSQueryEaInfo( Irp,
 205                                            pCcb->DirectoryCB,
 206                                            &pAllInfo->EaInformation,
 207                                            &lLength);
 208
 209                 if( !NT_SUCCESS( ntStatus))
 210                 {
 211
 212                     try_return( ntStatus);
 213                 }
 214
 215                 ntStatus = AFSQueryAccess( Irp,
 216                                            pFcb,
 217                                            &pAllInfo->AccessInformation,
 218                                            &lLength);
 219
 220                 if( !NT_SUCCESS( ntStatus))
 221                 {
 222
 223                     try_return( ntStatus);
 224                 }
 225
 226                 ntStatus = AFSQueryPositionInfo( Irp,
 227                                                  pFcb,
 228                                                  &pAllInfo->PositionInformation,
 229                                                  &lLength);
 230
 231                 if( !NT_SUCCESS( ntStatus))
 232                 {
 233
 234                     try_return( ntStatus);
 235                 }
 236
 237                 ntStatus = AFSQueryMode( Irp,
 238                                          pFcb,
 239                                          &pAllInfo->ModeInformation,
 240                                          &lLength);
 241
 242                 if( !NT_SUCCESS( ntStatus))
 243                 {
 244
 245                     try_return( ntStatus);
 246                 }
 247
 248                 ntStatus = AFSQueryAlignment( Irp,
 249                                               pFcb,
 250                                               &pAllInfo->AlignmentInformation,
 251                                               &lLength);
 252
 253                 if( !NT_SUCCESS( ntStatus))
 254                 {
 255
 256                     try_return( ntStatus);
 257                 }
 258
 259                 ntStatus = AFSQueryNameInfo( Irp,
 260                                              pCcb->DirectoryCB,
 261                                              &pAllInfo->NameInformation,
 262                                              &lLength);
 263
 264                 if( !NT_SUCCESS( ntStatus))
 265                 {
 266
 267                     try_return( ntStatus);
 268                 }
 269
 270                 break;
 271             }
 272
 273             case FileBasicInformation:
 274             {
 275
 276                 ntStatus = AFSQueryBasicInfo( Irp,
 277                                               pCcb->DirectoryCB,
 278                                               (PFILE_BASIC_INFORMATION)pBuffer,
 279                                               &lLength);
 280
 281                 break;
 282             }
 283
 284             case FileStandardInformation:
 285             {
 286
 287                 ntStatus = AFSQueryStandardInfo( Irp,
 288                                                  pCcb->DirectoryCB,
 289                                                  (PFILE_STANDARD_INFORMATION)pBuffer,
 290                                                  &lLength);
 291
 292                 break;
 293             }
 294
 295             case FileInternalInformation:
 296             {
 297
 298                 ntStatus = AFSQueryInternalInfo( Irp,
 299                                                  pFcb,
 300                                                  (PFILE_INTERNAL_INFORMATION)pBuffer,
 301                                                  &lLength);
 302
 303                 break;
 304             }
 305
 306             case FileEaInformation:
 307             {
 308
 309                 ntStatus = AFSQueryEaInfo( Irp,
 310                                            pCcb->DirectoryCB,
 311                                            (PFILE_EA_INFORMATION)pBuffer,
 312                                            &lLength);
 313
 314                 break;
 315             }
 316
 317             case FilePositionInformation:
 318             {
 319
 320                 ntStatus = AFSQueryPositionInfo( Irp,
 321                                       pFcb,
 322                                       (PFILE_POSITION_INFORMATION)pBuffer,
 323                                       &lLength);
 324
 325                 break;
 326             }
 327
 328             case FileNormalizedNameInformation:
 329             case FileNameInformation:
 330             {
 331
 332                 ntStatus = AFSQueryNameInfo( Irp,
 333                                   pCcb->DirectoryCB,
 334                                   (PFILE_NAME_INFORMATION)pBuffer,
 335                                   &lLength);
 336
 337                 break;
 338             }
 339
 340             case FileAlternateNameInformation:
 341             {
 342
 343                 ntStatus = AFSQueryShortNameInfo( Irp,
 344                                        pCcb->DirectoryCB,
 345                                        (PFILE_NAME_INFORMATION)pBuffer,
 346                                        &lLength);
 347
 348                 break;
 349             }
 350
 351             case FileNetworkOpenInformation:
 352             {
 353
 354                 ntStatus = AFSQueryNetworkInfo( Irp,
 355                                      pCcb->DirectoryCB,
 356                                      (PFILE_NETWORK_OPEN_INFORMATION)pBuffer,
 357                                      &lLength);
 358
 359                 break;
 360             }
 361
 362             case FileStreamInformation:
 363             {
 364
 365                 ntStatus = AFSQueryStreamInfo( Irp,
 366                                                pCcb->DirectoryCB,
 367                                                (FILE_STREAM_INFORMATION *)pBuffer,
 368                                                &lLength);
 369
 370                 break;
 371             }
 372
 373
 374             case FileAttributeTagInformation:
 375             {
 376
 377                 ntStatus = AFSQueryAttribTagInfo( Irp,
 378                                                   pCcb->DirectoryCB,
 379                                                   (FILE_ATTRIBUTE_TAG_INFORMATION *)pBuffer,
 380                                                   &lLength);
 381
 382                 break;
 383             }
 384
 385             case FileRemoteProtocolInformation:
 386             {
 387
 388                     ntStatus = AFSQueryRemoteProtocolInfo( Irp,
 389                                                            pCcb->DirectoryCB,
 390                                                            (FILE_REMOTE_PROTOCOL_INFORMATION *)pBuffer,
 391                                                            &lLength);
 392
 393                 break;
 394             }
 395
 396             case FileNetworkPhysicalNameInformation:
 397             {
 398
 399                 ntStatus = AFSQueryPhysicalNameInfo( Irp,
 400                                                      pCcb->DirectoryCB,
 401                                                      (FILE_NETWORK_PHYSICAL_NAME_INFORMATION *)pBuffer,
 402                                                      &lLength);
 403
 404                 break;
 405             }
 406
 407             default:
 408             {
 409                 ntStatus = STATUS_INVALID_PARAMETER;
 410                 break;
 411             }
 412         }
 413
 414 try_exit:
 415
 416         Irp->IoStatus.Information = pIrpSp->Parameters.QueryFile.Length - lLength;
 417
 418         if( bReleaseMain)
 419         {
 420
 421             AFSReleaseResource( &pFcb->NPFcb->Resource);
 422         }
 423
 424         if( !NT_SUCCESS( ntStatus) &&
 425             ntStatus != STATUS_INVALID_PARAMETER &&
 426             ntStatus != STATUS_BUFFER_OVERFLOW)
 427         {
 428
 429             if( pCcb != NULL &&
 430                 pCcb->DirectoryCB != NULL)
 431             {
 432
 433                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 434                               AFS_TRACE_LEVEL_ERROR,
 435                               "AFSQueryFileInfo Failed to process request for %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
 436                               &pCcb->DirectoryCB->NameInformation.FileName,
 437                               pCcb->DirectoryCB->ObjectInformation->FileId.Cell,
 438                               pCcb->DirectoryCB->ObjectInformation->FileId.Volume,
 439                               pCcb->DirectoryCB->ObjectInformation->FileId.Vnode,
 440                               pCcb->DirectoryCB->ObjectInformation->FileId.Unique,
 441                               ntStatus);
 442             }
 443         }
 444     }
 445     __except( AFSExceptionFilter( __FUNCTION__, GetExceptionCode(), GetExceptionInformation()) )
 446     {
 447
 448         AFSDbgLogMsg( 0,
 449                       0,
 450                       "EXCEPTION - AFSQueryFileInfo\n");
 451
 452         AFSDumpTraceFilesFnc();
 453
 454         ntStatus = STATUS_UNSUCCESSFUL;
 455
 456         if( bReleaseMain)
 457         {
 458
 459             AFSReleaseResource( &pFcb->NPFcb->Resource);
 460         }
 461     }
 462
 463     AFSCompleteRequest( Irp,
 464                         ntStatus);
 465
 466     return ntStatus;
 467 }
 468
 469 //
 470 // Function: AFSSetFileInfo
 471 //
 472 // Description:
 473 //
 474 //      This function is the dispatch handler for the IRP_MJ_SET_FILE_INFORMATION request
 475 //
 476 // Return:
 477 //
 478 //      A status is returned for the function
 479 //
 480
 481 NTSTATUS
 482 AFSSetFileInfo( IN PDEVICE_OBJECT LibDeviceObject,
 483                 IN PIRP Irp)
 484 {
 485
 486     NTSTATUS ntStatus = STATUS_SUCCESS;
 487     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
 488     IO_STACK_LOCATION *pIrpSp = IoGetCurrentIrpStackLocation( Irp);
 489     AFSFcb *pFcb = NULL;
 490     AFSCcb *pCcb = NULL;
 491     BOOLEAN bCompleteRequest = TRUE;
 492     FILE_INFORMATION_CLASS FileInformationClass;
 493     BOOLEAN bCanQueueRequest = FALSE;
 494     PFILE_OBJECT pFileObject = NULL;
 495     BOOLEAN bReleaseMain = FALSE;
 496     BOOLEAN bUpdateFileInfo = FALSE;
 497     AFSFileID stParentFileId;
 498
 499     __try
 500     {
 501
 502         pFileObject = pIrpSp->FileObject;
 503
 504         pFcb = (AFSFcb *)pFileObject->FsContext;
 505         pCcb = (AFSCcb *)pFileObject->FsContext2;
 506
 507         if( pFcb == NULL)
 508         {
 509
 510             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 511                           AFS_TRACE_LEVEL_ERROR,
 512                           "AFSSetFileInfo Attempted access (%08lX) when pFcb == NULL\n",
 513                           Irp);
 514
 515             try_return( ntStatus = STATUS_INVALID_DEVICE_REQUEST);
 516         }
 517
 518         bCanQueueRequest = !(IoIsOperationSynchronous( Irp) | (KeGetCurrentIrql() != PASSIVE_LEVEL));
 519         FileInformationClass = pIrpSp->Parameters.SetFile.FileInformationClass;
 520
 521         //
 522         // Grab the Fcb EXCL
 523         //
 524
 525         AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
 526                       AFS_TRACE_LEVEL_VERBOSE,
 527                       "AFSSetFileInfo Acquiring Fcb lock %08lX EXCL %08lX\n",
 528                       &pFcb->NPFcb->Resource,
 529                       PsGetCurrentThread());
 530
 531         AFSAcquireExcl( &pFcb->NPFcb->Resource,
 532                         TRUE);
 533
 534         bReleaseMain = TRUE;
 535
 536         //
 537         // Don't allow requests against IOCtl nodes
 538         //
 539
 540         if( pFcb->Header.NodeTypeCode == AFS_IOCTL_FCB)
 541         {
 542
 543             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 544                           AFS_TRACE_LEVEL_ERROR,
 545                           "AFSSetFileInfo Failing request against PIOCtl Fcb\n");
 546
 547             try_return( ntStatus = STATUS_INVALID_DEVICE_REQUEST);
 548         }
 549         else if( pFcb->Header.NodeTypeCode == AFS_SPECIAL_SHARE_FCB)
 550         {
 551
 552             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 553                           AFS_TRACE_LEVEL_VERBOSE,
 554                           "AFSSetFileInfo Processing request against SpecialShare Fcb\n");
 555
 556             ntStatus = AFSProcessShareSetInfo( Irp,
 557                                                pFcb,
 558                                                pCcb);
 559
 560             try_return( ntStatus);
 561         }
 562
 563         if( BooleanFlagOn( pFcb->ObjectInformation->VolumeCB->VolumeInformation.Characteristics, FILE_READ_ONLY_DEVICE))
 564         {
 565
 566             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 567                           AFS_TRACE_LEVEL_ERROR,
 568                           "AFSSetFileInfo Request failed due to read only volume\n",
 569                           Irp);
 570
 571             try_return( ntStatus = STATUS_MEDIA_WRITE_PROTECTED);
 572         }
 573
 574         if( pFcb->Header.NodeTypeCode == AFS_INVALID_FCB &&
 575             FileInformationClass != FileDispositionInformation)
 576         {
 577             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 578                           AFS_TRACE_LEVEL_VERBOSE,
 579                           "AFSSetFileInfo request against Invalid Fcb\n");
 580
 581             try_return( ntStatus = STATUS_ACCESS_DENIED);
 582         }
 583
 584         //
 585         // Ensure rename operations are synchronous
 586         //
 587
 588         if( FileInformationClass == FileRenameInformation)
 589         {
 590
 591             bCanQueueRequest = FALSE;
 592         }
 593
 594         //
 595         // Store away the parent fid
 596         //
 597
 598         RtlZeroMemory( &stParentFileId,
 599                        sizeof( AFSFileID));
 600
 601         if( pFcb->ObjectInformation->ParentObjectInformation != NULL)
 602         {
 603             stParentFileId = pFcb->ObjectInformation->ParentObjectInformation->FileId;
 604         }
 605
 606         //
 607         // Process the request
 608         //
 609
 610         switch( FileInformationClass)
 611         {
 612
 613             case FileBasicInformation:
 614             {
 615
 616                 bUpdateFileInfo = TRUE;
 617
 618                 ntStatus = AFSSetBasicInfo( Irp,
 619                                             pCcb->DirectoryCB);
 620
 621                 break;
 622             }
 623
 624             case FileDispositionInformation:
 625             {
 626
 627                 ntStatus = AFSSetDispositionInfo( Irp,
 628                                                   pCcb->DirectoryCB);
 629
 630                 break;
 631             }
 632
 633             case FileRenameInformation:
 634             {
 635
 636                 ntStatus = AFSSetRenameInfo( Irp);
 637
 638                 break;
 639             }
 640
 641             case FilePositionInformation:
 642             {
 643
 644                 ntStatus = AFSSetPositionInfo( Irp,
 645                                                pCcb->DirectoryCB);
 646
 647                 break;
 648             }
 649
 650             case FileLinkInformation:
 651             {
 652
 653                 ntStatus = STATUS_INVALID_DEVICE_REQUEST;
 654
 655                 break;
 656             }
 657
 658             case FileAllocationInformation:
 659             {
 660
 661                 ntStatus = AFSSetAllocationInfo( Irp,
 662                                                  pCcb->DirectoryCB);
 663
 664                 break;
 665             }
 666
 667             case FileEndOfFileInformation:
 668             {
 669
 670                 ntStatus = AFSSetEndOfFileInfo( Irp,
 671                                                 pCcb->DirectoryCB);
 672
 673                 break;
 674             }
 675
 676             default:
 677
 678                 ntStatus = STATUS_INVALID_PARAMETER;
 679
 680                 break;
 681         }
 682
 683 try_exit:
 684
 685         if( bReleaseMain)
 686         {
 687
 688             AFSReleaseResource( &pFcb->NPFcb->Resource);
 689         }
 690
 691         if( NT_SUCCESS( ntStatus) &&
 692             bUpdateFileInfo)
 693         {
 694
 695             ntStatus = AFSUpdateFileInformation( &stParentFileId,
 696                                                  pFcb->ObjectInformation,
 697                                                  &pCcb->AuthGroup);
 698
 699             if( !NT_SUCCESS( ntStatus))
 700             {
 701
 702                 AFSAcquireExcl( &pFcb->NPFcb->Resource,
 703                                 TRUE);
 704
 705                 //
 706                 // Unwind the update and fail the request
 707                 //
 708
 709                 AFSUnwindFileInfo( pFcb,
 710                                    pCcb);
 711
 712                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 713                               AFS_TRACE_LEVEL_ERROR,
 714                               "AFSSetFileInfo Failed to send file info update to service request for %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
 715                               &pCcb->DirectoryCB->NameInformation.FileName,
 716                               pCcb->DirectoryCB->ObjectInformation->FileId.Cell,
 717                               pCcb->DirectoryCB->ObjectInformation->FileId.Volume,
 718                               pCcb->DirectoryCB->ObjectInformation->FileId.Vnode,
 719                               pCcb->DirectoryCB->ObjectInformation->FileId.Unique,
 720                               ntStatus);
 721
 722                 AFSReleaseResource( &pFcb->NPFcb->Resource);
 723             }
 724         }
 725
 726         if( !NT_SUCCESS( ntStatus))
 727         {
 728
 729             if( pCcb != NULL &&
 730                 pCcb->DirectoryCB != NULL)
 731             {
 732
 733                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 734                               AFS_TRACE_LEVEL_ERROR,
 735                               "AFSSetFileInfo Failed to process request for %wZ FID %08lX-%08lX-%08lX-%08lX Status %08lX\n",
 736                               &pCcb->DirectoryCB->NameInformation.FileName,
 737                               pCcb->DirectoryCB->ObjectInformation->FileId.Cell,
 738                               pCcb->DirectoryCB->ObjectInformation->FileId.Volume,
 739                               pCcb->DirectoryCB->ObjectInformation->FileId.Vnode,
 740                               pCcb->DirectoryCB->ObjectInformation->FileId.Unique,
 741                               ntStatus);
 742             }
 743         }
 744     }
 745     __except( AFSExceptionFilter( __FUNCTION__, GetExceptionCode(), GetExceptionInformation()) )
 746     {
 747
 748         AFSDbgLogMsg( 0,
 749                       0,
 750                       "EXCEPTION - AFSSetFileInfo\n");
 751
 752         AFSDumpTraceFilesFnc();
 753
 754         ntStatus = STATUS_UNSUCCESSFUL;
 755
 756         if( bReleaseMain)
 757         {
 758
 759             AFSReleaseResource( &pFcb->NPFcb->Resource);
 760         }
 761     }
 762
 763     AFSCompleteRequest( Irp,
 764                         ntStatus);
 765
 766     return ntStatus;
 767 }
 768
 769 //
 770 // Function: AFSQueryBasicInfo
 771 //
 772 // Description:
 773 //
 774 //      This function is the handler for the query basic information request
 775 //
 776 // Return:
 777 //
 778 //      A status is returned for the function
 779 //
 780
 781 NTSTATUS
 782 AFSQueryBasicInfo( IN PIRP Irp,
 783                    IN AFSDirectoryCB *DirectoryCB,
 784                    IN OUT PFILE_BASIC_INFORMATION Buffer,
 785                    IN OUT PLONG Length)
 786 {
 787     NTSTATUS ntStatus = STATUS_SUCCESS;
 788     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
 789     ULONG ulFileAttribs = 0;
 790     AFSFcb *pFcb = NULL;
 791     AFSCcb *pCcb = NULL;
 792     IO_STACK_LOCATION *pIrpSp = IoGetCurrentIrpStackLocation( Irp);
 793     AFSFileInfoCB stFileInfo;
 794     AFSDirectoryCB *pParentDirectoryCB = NULL;
 795     UNICODE_STRING uniParentPath;
 796
 797     if( *Length >= sizeof( FILE_BASIC_INFORMATION))
 798     {
 799
 800         RtlZeroMemory( Buffer,
 801                        *Length);
 802
 803         ulFileAttribs = DirectoryCB->ObjectInformation->FileAttributes;
 804
 805         pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
 806         pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
 807
 808         if( DirectoryCB->ObjectInformation->FileType == AFS_FILE_TYPE_SYMLINK)
 809         {
 810
 811             pParentDirectoryCB = AFSGetParentEntry( pCcb->NameArray);
 812
 813             AFSRetrieveParentPath( &pCcb->FullFileName,
 814                                    &uniParentPath);
 815
 816             RtlZeroMemory( &stFileInfo,
 817                            sizeof( AFSFileInfoCB));
 818
 819             //
 820             // Can't hold the Fcb while evaluating the path, leads to lock inversion
 821             //
 822
 823             AFSReleaseResource( &pFcb->NPFcb->Resource);
 824
 825             if( NT_SUCCESS( AFSRetrieveFileAttributes( pParentDirectoryCB,
 826                                                        DirectoryCB,
 827                                                        &uniParentPath,
 828                                                        pCcb->NameArray,
 829                                                        &pCcb->AuthGroup,
 830                                                        &stFileInfo)))
 831             {
 832
 833                 if ( ulFileAttribs == FILE_ATTRIBUTE_NORMAL)
 834                 {
 835
 836                     ulFileAttribs = FILE_ATTRIBUTE_REPARSE_POINT;
 837                 }
 838                 else
 839                 {
 840
 841                     ulFileAttribs |= FILE_ATTRIBUTE_REPARSE_POINT;
 842                 }
 843
 844                 if ( stFileInfo.FileAttributes & FILE_ATTRIBUTE_DIRECTORY)
 845                 {
 846
 847                     ulFileAttribs |= FILE_ATTRIBUTE_DIRECTORY;
 848                 }
 849             }
 850
 851             AFSAcquireShared( &pFcb->NPFcb->Resource,
 852                               TRUE);
 853         }
 854
 855
 856         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 857                       AFS_TRACE_LEVEL_VERBOSE_2,
 858                       "AFSQueryBasicInfo %wZ Type 0x%x Attrib 0x%x -> 0x%x\n",
 859                       &pCcb->DirectoryCB->NameInformation.FileName,
 860                       pCcb->DirectoryCB->ObjectInformation->FileType,
 861                       pCcb->DirectoryCB->ObjectInformation->FileAttributes,
 862                       ulFileAttribs);
 863
 864         Buffer->CreationTime = DirectoryCB->ObjectInformation->CreationTime;
 865         Buffer->LastAccessTime = DirectoryCB->ObjectInformation->LastAccessTime;
 866         Buffer->LastWriteTime = DirectoryCB->ObjectInformation->LastWriteTime;
 867         Buffer->ChangeTime = DirectoryCB->ObjectInformation->ChangeTime;
 868         Buffer->FileAttributes = ulFileAttribs;
 869
 870         if( DirectoryCB->NameInformation.FileName.Buffer[ 0] == L'.' &&
 871             BooleanFlagOn( pDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_HIDE_DOT_NAMES))
 872         {
 873
 874             if ( Buffer->FileAttributes != FILE_ATTRIBUTE_NORMAL)
 875             {
 876                 Buffer->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
 877             }
 878             else
 879             {
 880                 Buffer->FileAttributes = FILE_ATTRIBUTE_HIDDEN;
 881             }
 882         }
 883
 884         *Length -= sizeof( FILE_BASIC_INFORMATION);
 885     }
 886     else
 887     {
 888
 889         ntStatus = STATUS_BUFFER_TOO_SMALL;
 890     }
 891
 892     return ntStatus;
 893 }
 894
 895 NTSTATUS
 896 AFSQueryStandardInfo( IN PIRP Irp,
 897                       IN AFSDirectoryCB *DirectoryCB,
 898                       IN OUT PFILE_STANDARD_INFORMATION Buffer,
 899                       IN OUT PLONG Length)
 900 {
 901
 902     NTSTATUS ntStatus = STATUS_SUCCESS;
 903     AFSFcb *pFcb = NULL;
 904     AFSCcb *pCcb = NULL;
 905     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
 906     AFSFileInfoCB stFileInfo;
 907     AFSDirectoryCB *pParentDirectoryCB = NULL;
 908     UNICODE_STRING uniParentPath;
 909     ULONG ulFileAttribs = 0;
 910
 911     if( *Length >= sizeof( FILE_STANDARD_INFORMATION))
 912     {
 913
 914         pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
 915         pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
 916
 917         RtlZeroMemory( Buffer,
 918                        *Length);
 919
 920         Buffer->NumberOfLinks = 1;
 921         Buffer->DeletePending = BooleanFlagOn( pCcb->DirectoryCB->Flags, AFS_DIR_ENTRY_PENDING_DELETE);
 922
 923         Buffer->AllocationSize.QuadPart = (ULONGLONG)((DirectoryCB->ObjectInformation->AllocationSize.QuadPart/PAGE_SIZE) + 1) * PAGE_SIZE;
 924
 925         Buffer->EndOfFile = DirectoryCB->ObjectInformation->EndOfFile;
 926
 927         ulFileAttribs = DirectoryCB->ObjectInformation->FileAttributes;
 928
 929         if( DirectoryCB->ObjectInformation->FileType == AFS_FILE_TYPE_SYMLINK)
 930         {
 931
 932             pParentDirectoryCB = AFSGetParentEntry( pCcb->NameArray);
 933
 934             AFSRetrieveParentPath( &pCcb->FullFileName,
 935                                    &uniParentPath);
 936
 937             RtlZeroMemory( &stFileInfo,
 938                            sizeof( AFSFileInfoCB));
 939
 940             //
 941             // Can't hold the Fcb while evaluating the path, leads to lock inversion
 942             //
 943
 944             AFSReleaseResource( &pFcb->NPFcb->Resource);
 945
 946             if( NT_SUCCESS( AFSRetrieveFileAttributes( pParentDirectoryCB,
 947                                                        DirectoryCB,
 948                                                        &uniParentPath,
 949                                                        pCcb->NameArray,
 950                                                        &pCcb->AuthGroup,
 951                                                        &stFileInfo)))
 952             {
 953
 954                 if ( ulFileAttribs == FILE_ATTRIBUTE_NORMAL)
 955                 {
 956
 957                     ulFileAttribs = FILE_ATTRIBUTE_REPARSE_POINT;
 958                 }
 959                 else
 960                 {
 961
 962                     ulFileAttribs |= FILE_ATTRIBUTE_REPARSE_POINT;
 963                 }
 964
 965                 if ( stFileInfo.FileAttributes & FILE_ATTRIBUTE_DIRECTORY)
 966                 {
 967
 968                     ulFileAttribs |= FILE_ATTRIBUTE_DIRECTORY;
 969                 }
 970             }
 971
 972             AFSAcquireShared( &pFcb->NPFcb->Resource,
 973                               TRUE);
 974         }
 975
 976         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
 977                       AFS_TRACE_LEVEL_VERBOSE_2,
 978                       "AFSQueryStandardInfo %wZ Type 0x%x Attrib 0x%x -> 0x%x\n",
 979                       &pCcb->DirectoryCB->NameInformation.FileName,
 980                       pCcb->DirectoryCB->ObjectInformation->FileType,
 981                       pCcb->DirectoryCB->ObjectInformation->FileAttributes,
 982                       ulFileAttribs);
 983
 984         Buffer->Directory = BooleanFlagOn( ulFileAttribs, FILE_ATTRIBUTE_DIRECTORY);
 985
 986         *Length -= sizeof( FILE_STANDARD_INFORMATION);
 987     }
 988     else
 989     {
 990
 991         ntStatus = STATUS_BUFFER_TOO_SMALL;
 992     }
 993
 994     return ntStatus;
 995 }
 996
 997 NTSTATUS
 998 AFSQueryInternalInfo( IN PIRP Irp,
 999                       IN AFSFcb *Fcb,
1000                       IN OUT PFILE_INTERNAL_INFORMATION Buffer,
1001                       IN OUT PLONG Length)
1002 {
1003
1004     NTSTATUS ntStatus = STATUS_SUCCESS;
1005
1006     if( *Length >= sizeof( FILE_INTERNAL_INFORMATION))
1007     {
1008
1009         Buffer->IndexNumber.HighPart = Fcb->ObjectInformation->FileId.Volume;
1010
1011         Buffer->IndexNumber.LowPart = Fcb->ObjectInformation->FileId.Vnode;
1012
1013         *Length -= sizeof( FILE_INTERNAL_INFORMATION);
1014     }
1015     else
1016     {
1017
1018         ntStatus = STATUS_BUFFER_TOO_SMALL;
1019     }
1020
1021     return ntStatus;
1022 }
1023
1024 NTSTATUS
1025 AFSQueryEaInfo( IN PIRP Irp,
1026                 IN AFSDirectoryCB *DirectoryCB,
1027                 IN OUT PFILE_EA_INFORMATION Buffer,
1028                 IN OUT PLONG Length)
1029 {
1030
1031     NTSTATUS ntStatus = STATUS_SUCCESS;
1032
1033     RtlZeroMemory( Buffer,
1034                    *Length);
1035
1036     if( *Length >= sizeof( FILE_EA_INFORMATION))
1037     {
1038
1039         Buffer->EaSize = 0;
1040
1041         *Length -= sizeof( FILE_EA_INFORMATION);
1042     }
1043     else
1044     {
1045
1046         ntStatus = STATUS_BUFFER_TOO_SMALL;
1047     }
1048
1049     return ntStatus;
1050 }
1051
1052 NTSTATUS
1053 AFSQueryPositionInfo( IN PIRP Irp,
1054                       IN AFSFcb *Fcb,
1055                       IN OUT PFILE_POSITION_INFORMATION Buffer,
1056                       IN OUT PLONG Length)
1057 {
1058
1059     NTSTATUS ntStatus = STATUS_SUCCESS;
1060     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1061
1062     if( *Length >= sizeof( FILE_POSITION_INFORMATION))
1063     {
1064
1065         RtlZeroMemory( Buffer,
1066                        *Length);
1067
1068         Buffer->CurrentByteOffset.QuadPart = pIrpSp->FileObject->CurrentByteOffset.QuadPart;
1069
1070         *Length -= sizeof( FILE_POSITION_INFORMATION);
1071     }
1072     else
1073     {
1074
1075         ntStatus = STATUS_BUFFER_TOO_SMALL;
1076     }
1077
1078     return ntStatus;
1079 }
1080
1081 NTSTATUS
1082 AFSQueryAccess( IN PIRP Irp,
1083                 IN AFSFcb *Fcb,
1084                 IN OUT PFILE_ACCESS_INFORMATION Buffer,
1085                 IN OUT PLONG Length)
1086 {
1087
1088     NTSTATUS ntStatus = STATUS_SUCCESS;
1089
1090     if( *Length >= sizeof( FILE_ACCESS_INFORMATION))
1091     {
1092
1093         RtlZeroMemory( Buffer,
1094                        *Length);
1095
1096         Buffer->AccessFlags = 0;
1097
1098         *Length -= sizeof( FILE_ACCESS_INFORMATION);
1099     }
1100     else
1101     {
1102
1103         ntStatus = STATUS_BUFFER_TOO_SMALL;
1104     }
1105
1106     return ntStatus;
1107 }
1108
1109 NTSTATUS
1110 AFSQueryMode( IN PIRP Irp,
1111               IN AFSFcb *Fcb,
1112               IN OUT PFILE_MODE_INFORMATION Buffer,
1113               IN OUT PLONG Length)
1114 {
1115
1116     NTSTATUS ntStatus = STATUS_SUCCESS;
1117
1118     if( *Length >= sizeof( FILE_MODE_INFORMATION))
1119     {
1120
1121         RtlZeroMemory( Buffer,
1122                        *Length);
1123
1124         Buffer->Mode = 0;
1125
1126         *Length -= sizeof( FILE_MODE_INFORMATION);
1127     }
1128     else
1129     {
1130
1131         ntStatus = STATUS_BUFFER_TOO_SMALL;
1132     }
1133
1134     return ntStatus;
1135 }
1136
1137 NTSTATUS
1138 AFSQueryAlignment( IN PIRP Irp,
1139                    IN AFSFcb *Fcb,
1140                    IN OUT PFILE_ALIGNMENT_INFORMATION Buffer,
1141                    IN OUT PLONG Length)
1142 {
1143
1144     NTSTATUS ntStatus = STATUS_SUCCESS;
1145
1146     if( *Length >= sizeof( FILE_ALIGNMENT_INFORMATION))
1147     {
1148
1149         RtlZeroMemory( Buffer,
1150                        *Length);
1151
1152         Buffer->AlignmentRequirement = 1;
1153
1154         *Length -= sizeof( FILE_ALIGNMENT_INFORMATION);
1155     }
1156     else
1157     {
1158
1159         ntStatus = STATUS_BUFFER_TOO_SMALL;
1160     }
1161
1162     return ntStatus;
1163 }
1164
1165 NTSTATUS
1166 AFSQueryNameInfo( IN PIRP Irp,
1167                   IN AFSDirectoryCB *DirectoryCB,
1168                   IN OUT PFILE_NAME_INFORMATION Buffer,
1169                   IN OUT PLONG Length)
1170 {
1171
1172     NTSTATUS ntStatus = STATUS_SUCCESS;
1173     ULONG ulCopyLength = 0;
1174     ULONG cchCopied = 0;
1175     AFSFcb *pFcb = NULL;
1176     AFSCcb *pCcb = NULL;
1177     IO_STACK_LOCATION *pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1178     BOOLEAN bAddLeadingSlash = FALSE;
1179     BOOLEAN bAddTrailingSlash = FALSE;
1180     USHORT usFullNameLength = 0;
1181
1182     pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
1183
1184     pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
1185
1186     if( *Length >= FIELD_OFFSET( FILE_NAME_INFORMATION, FileName))
1187     {
1188
1189         RtlZeroMemory( Buffer,
1190                        *Length);
1191
1192         if( pCcb->FullFileName.Length == 0 ||
1193             pCcb->FullFileName.Buffer[ 0] != L'\\')
1194         {
1195             bAddLeadingSlash = TRUE;
1196         }
1197
1198         if( pFcb->ObjectInformation->FileType == AFS_FILE_TYPE_DIRECTORY &&
1199             pCcb->FullFileName.Length > 0 &&
1200             pCcb->FullFileName.Buffer[ (pCcb->FullFileName.Length/sizeof( WCHAR)) - 1] != L'\\')
1201         {
1202             bAddTrailingSlash = TRUE;
1203         }
1204
1205         usFullNameLength = sizeof( WCHAR) +
1206                                     AFSServerName.Length +
1207                                     pCcb->FullFileName.Length;
1208
1209         if( bAddLeadingSlash)
1210         {
1211             usFullNameLength += sizeof( WCHAR);
1212         }
1213
1214         if( bAddTrailingSlash)
1215         {
1216             usFullNameLength += sizeof( WCHAR);
1217         }
1218
1219         if( *Length >= (LONG)(FIELD_OFFSET( FILE_NAME_INFORMATION, FileName) + (LONG)usFullNameLength))
1220         {
1221
1222             ulCopyLength = (LONG)usFullNameLength;
1223         }
1224         else
1225         {
1226
1227             ulCopyLength = *Length - FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1228
1229             ntStatus = STATUS_BUFFER_OVERFLOW;
1230         }
1231
1232         Buffer->FileNameLength = (ULONG)usFullNameLength;
1233
1234         *Length -= FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1235
1236         if( ulCopyLength > 0)
1237         {
1238
1239             Buffer->FileName[ 0] = L'\\';
1240             ulCopyLength -= sizeof( WCHAR);
1241
1242             *Length -= sizeof( WCHAR);
1243             cchCopied += 1;
1244
1245             if( ulCopyLength >= AFSServerName.Length)
1246             {
1247
1248                 RtlCopyMemory( &Buffer->FileName[ 1],
1249                                AFSServerName.Buffer,
1250                                AFSServerName.Length);
1251
1252                 ulCopyLength -= AFSServerName.Length;
1253                 *Length -= AFSServerName.Length;
1254                 cchCopied += AFSServerName.Length/sizeof( WCHAR);
1255
1256                 if ( ulCopyLength > 0 &&
1257                      bAddLeadingSlash)
1258                 {
1259
1260                     Buffer->FileName[ cchCopied] = L'\\';
1261
1262                     ulCopyLength -= sizeof( WCHAR);
1263                     *Length -= sizeof( WCHAR);
1264                     cchCopied++;
1265                 }
1266
1267                 if( ulCopyLength >= pCcb->FullFileName.Length)
1268                 {
1269
1270                     RtlCopyMemory( &Buffer->FileName[ cchCopied],
1271                                    pCcb->FullFileName.Buffer,
1272                                    pCcb->FullFileName.Length);
1273
1274                     ulCopyLength -= pCcb->FullFileName.Length;
1275                     *Length -= pCcb->FullFileName.Length;
1276                     cchCopied += pCcb->FullFileName.Length/sizeof( WCHAR);
1277
1278                     if( ulCopyLength > 0 &&
1279                         bAddTrailingSlash)
1280                     {
1281                         Buffer->FileName[ cchCopied] = L'\\';
1282
1283                         *Length -= sizeof( WCHAR);
1284                     }
1285                 }
1286                 else
1287                 {
1288
1289                     RtlCopyMemory( &Buffer->FileName[ cchCopied],
1290                                    pCcb->FullFileName.Buffer,
1291                                    ulCopyLength);
1292
1293                     *Length -= ulCopyLength;
1294                 }
1295             }
1296         }
1297     }
1298     else
1299     {
1300
1301         ntStatus = STATUS_BUFFER_TOO_SMALL;
1302     }
1303
1304     return ntStatus;
1305 }
1306
1307 NTSTATUS
1308 AFSQueryShortNameInfo( IN PIRP Irp,
1309                        IN AFSDirectoryCB *DirectoryCB,
1310                        IN OUT PFILE_NAME_INFORMATION Buffer,
1311                        IN OUT PLONG Length)
1312 {
1313
1314     NTSTATUS ntStatus = STATUS_BUFFER_TOO_SMALL;
1315     ULONG ulCopyLength = 0;
1316
1317     RtlZeroMemory( Buffer,
1318                    *Length);
1319
1320     if( DirectoryCB->NameInformation.ShortNameLength == 0)
1321     {
1322
1323         //
1324         // The short name IS the long name
1325         //
1326
1327         if( *Length >= (LONG)FIELD_OFFSET( FILE_NAME_INFORMATION, FileName))
1328         {
1329
1330             if( *Length >= (LONG)(FIELD_OFFSET( FILE_NAME_INFORMATION, FileName) + (LONG)DirectoryCB->NameInformation.FileName.Length))
1331             {
1332
1333                 ulCopyLength = (LONG)DirectoryCB->NameInformation.FileName.Length;
1334
1335                 ntStatus = STATUS_SUCCESS;
1336             }
1337             else
1338             {
1339
1340                 ulCopyLength = *Length - FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1341
1342                 ntStatus = STATUS_BUFFER_OVERFLOW;
1343             }
1344
1345             Buffer->FileNameLength = DirectoryCB->NameInformation.FileName.Length;
1346
1347             *Length -= FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1348
1349             if( ulCopyLength > 0)
1350             {
1351
1352                 RtlCopyMemory( Buffer->FileName,
1353                                DirectoryCB->NameInformation.FileName.Buffer,
1354                                ulCopyLength);
1355
1356                 *Length -= ulCopyLength;
1357             }
1358         }
1359     }
1360     else
1361     {
1362
1363         if( *Length >= (LONG)FIELD_OFFSET( FILE_NAME_INFORMATION, FileName))
1364         {
1365
1366             if( *Length >= (LONG)(FIELD_OFFSET( FILE_NAME_INFORMATION, FileName) + (LONG)DirectoryCB->NameInformation.FileName.Length))
1367             {
1368
1369                 ulCopyLength = (LONG)DirectoryCB->NameInformation.ShortNameLength;
1370
1371                 ntStatus = STATUS_SUCCESS;
1372             }
1373             else
1374             {
1375
1376                 ulCopyLength = *Length - FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1377
1378                 ntStatus = STATUS_BUFFER_OVERFLOW;
1379             }
1380
1381             Buffer->FileNameLength = DirectoryCB->NameInformation.ShortNameLength;
1382
1383             *Length -= FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
1384
1385             if( ulCopyLength > 0)
1386             {
1387
1388                 RtlCopyMemory( Buffer->FileName,
1389                                DirectoryCB->NameInformation.ShortName,
1390                                Buffer->FileNameLength);
1391
1392                 *Length -= ulCopyLength;
1393             }
1394         }
1395     }
1396
1397     return ntStatus;
1398 }
1399
1400 NTSTATUS
1401 AFSQueryNetworkInfo( IN PIRP Irp,
1402                      IN AFSDirectoryCB *DirectoryCB,
1403                      IN OUT PFILE_NETWORK_OPEN_INFORMATION Buffer,
1404                      IN OUT PLONG Length)
1405 {
1406
1407     NTSTATUS ntStatus = STATUS_SUCCESS;
1408     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1409     AFSFcb *pFcb = NULL;
1410     AFSCcb *pCcb = NULL;
1411     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1412     AFSFileInfoCB stFileInfo;
1413     AFSDirectoryCB *pParentDirectoryCB = NULL;
1414     UNICODE_STRING uniParentPath;
1415     ULONG ulFileAttribs = 0;
1416
1417     RtlZeroMemory( Buffer,
1418                    *Length);
1419
1420     if( *Length >= sizeof( FILE_NETWORK_OPEN_INFORMATION))
1421     {
1422
1423         ulFileAttribs = DirectoryCB->ObjectInformation->FileAttributes;
1424
1425         pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
1426         pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
1427
1428         if( DirectoryCB->ObjectInformation->FileType == AFS_FILE_TYPE_SYMLINK)
1429         {
1430
1431             pParentDirectoryCB = AFSGetParentEntry( pCcb->NameArray);
1432
1433             AFSRetrieveParentPath( &pCcb->FullFileName,
1434                                    &uniParentPath);
1435
1436             RtlZeroMemory( &stFileInfo,
1437                            sizeof( AFSFileInfoCB));
1438
1439             //
1440             // Can't hold the Fcb while evaluating the path, leads to lock inversion
1441             //
1442
1443             AFSReleaseResource( &pFcb->NPFcb->Resource);
1444
1445             if( NT_SUCCESS( AFSRetrieveFileAttributes( pParentDirectoryCB,
1446                                                        DirectoryCB,
1447                                                        &uniParentPath,
1448                                                        pCcb->NameArray,
1449                                                        &pCcb->AuthGroup,
1450                                                        &stFileInfo)))
1451             {
1452
1453                 if ( ulFileAttribs == FILE_ATTRIBUTE_NORMAL)
1454                 {
1455
1456                     ulFileAttribs = FILE_ATTRIBUTE_REPARSE_POINT;
1457                 }
1458                 else
1459                 {
1460
1461                     ulFileAttribs |= FILE_ATTRIBUTE_REPARSE_POINT;
1462                 }
1463
1464                 if ( stFileInfo.FileAttributes & FILE_ATTRIBUTE_DIRECTORY)
1465                 {
1466
1467                     ulFileAttribs |= FILE_ATTRIBUTE_DIRECTORY;
1468                 }
1469             }
1470
1471             AFSAcquireShared( &pFcb->NPFcb->Resource,
1472                               TRUE);
1473         }
1474
1475         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1476                       AFS_TRACE_LEVEL_VERBOSE_2,
1477                       "AFSQueryNetworkInfo %wZ Type 0x%x Attrib 0x%x -> 0x%x\n",
1478                       &pCcb->DirectoryCB->NameInformation.FileName,
1479                       pCcb->DirectoryCB->ObjectInformation->FileType,
1480                       pCcb->DirectoryCB->ObjectInformation->FileAttributes,
1481                       ulFileAttribs);
1482
1483         Buffer->CreationTime.QuadPart = DirectoryCB->ObjectInformation->CreationTime.QuadPart;
1484         Buffer->LastAccessTime.QuadPart = DirectoryCB->ObjectInformation->LastAccessTime.QuadPart;
1485         Buffer->LastWriteTime.QuadPart = DirectoryCB->ObjectInformation->LastWriteTime.QuadPart;
1486         Buffer->ChangeTime.QuadPart = DirectoryCB->ObjectInformation->ChangeTime.QuadPart;
1487
1488         Buffer->AllocationSize.QuadPart = DirectoryCB->ObjectInformation->AllocationSize.QuadPart;
1489         Buffer->EndOfFile.QuadPart = DirectoryCB->ObjectInformation->EndOfFile.QuadPart;
1490
1491         Buffer->FileAttributes = ulFileAttribs;
1492
1493         if( DirectoryCB->NameInformation.FileName.Buffer[ 0] == L'.' &&
1494             BooleanFlagOn( pDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_HIDE_DOT_NAMES))
1495         {
1496
1497             if ( Buffer->FileAttributes != FILE_ATTRIBUTE_NORMAL)
1498             {
1499
1500                 Buffer->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
1501             }
1502             else
1503             {
1504
1505                 Buffer->FileAttributes = FILE_ATTRIBUTE_HIDDEN;
1506             }
1507         }
1508
1509         *Length -= sizeof( FILE_NETWORK_OPEN_INFORMATION);
1510     }
1511     else
1512     {
1513
1514         ntStatus = STATUS_BUFFER_TOO_SMALL;
1515     }
1516
1517     return ntStatus;
1518 }
1519
1520 NTSTATUS
1521 AFSQueryStreamInfo( IN PIRP Irp,
1522                     IN AFSDirectoryCB *DirectoryCB,
1523                     IN OUT FILE_STREAM_INFORMATION *Buffer,
1524                     IN OUT PLONG Length)
1525 {
1526
1527     NTSTATUS ntStatus = STATUS_BUFFER_TOO_SMALL;
1528     ULONG ulCopyLength = 0;
1529     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1530
1531     if( *Length >= FIELD_OFFSET( FILE_STREAM_INFORMATION, StreamName))
1532     {
1533
1534         RtlZeroMemory( Buffer,
1535                        *Length);
1536
1537         Buffer->NextEntryOffset = 0;
1538
1539
1540         if( !BooleanFlagOn( DirectoryCB->ObjectInformation->FileAttributes, FILE_ATTRIBUTE_DIRECTORY))
1541         {
1542
1543             if( *Length >= (LONG)(FIELD_OFFSET( FILE_STREAM_INFORMATION, StreamName) + 14))  // ::$DATA
1544             {
1545
1546                 ulCopyLength = 14;
1547
1548                 ntStatus = STATUS_SUCCESS;
1549             }
1550             else
1551             {
1552
1553                 ulCopyLength = *Length - FIELD_OFFSET( FILE_STREAM_INFORMATION, StreamName);
1554
1555                 ntStatus = STATUS_BUFFER_OVERFLOW;
1556             }
1557
1558             Buffer->StreamNameLength = 14; // ::$DATA
1559
1560             Buffer->StreamSize.QuadPart = DirectoryCB->ObjectInformation->EndOfFile.QuadPart;
1561
1562             Buffer->StreamAllocationSize.QuadPart = DirectoryCB->ObjectInformation->AllocationSize.QuadPart;
1563
1564             *Length -= FIELD_OFFSET( FILE_STREAM_INFORMATION, StreamName);
1565
1566             if( ulCopyLength > 0)
1567             {
1568
1569                 RtlCopyMemory( Buffer->StreamName,
1570                                L"::$DATA",
1571                                ulCopyLength);
1572
1573                 *Length -= ulCopyLength;
1574             }
1575         }
1576         else
1577         {
1578
1579             Buffer->StreamNameLength = 0;       // No stream for a directory
1580
1581             // The response size is zero
1582
1583             ntStatus = STATUS_SUCCESS;
1584         }
1585     }
1586
1587     return ntStatus;
1588 }
1589
1590 NTSTATUS
1591 AFSQueryAttribTagInfo( IN PIRP Irp,
1592                        IN AFSDirectoryCB *DirectoryCB,
1593                        IN OUT FILE_ATTRIBUTE_TAG_INFORMATION *Buffer,
1594                        IN OUT PLONG Length)
1595 {
1596
1597     NTSTATUS ntStatus = STATUS_BUFFER_TOO_SMALL;
1598     ULONG ulCopyLength = 0;
1599     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1600     AFSFcb *pFcb = NULL;
1601     AFSCcb *pCcb = NULL;
1602     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1603     AFSFileInfoCB stFileInfo;
1604     AFSDirectoryCB *pParentDirectoryCB = NULL;
1605     UNICODE_STRING uniParentPath;
1606     ULONG ulFileAttribs = 0;
1607
1608     if( *Length >= sizeof( FILE_ATTRIBUTE_TAG_INFORMATION))
1609     {
1610
1611         RtlZeroMemory( Buffer,
1612                        *Length);
1613
1614         ulFileAttribs = DirectoryCB->ObjectInformation->FileAttributes;
1615
1616         pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
1617         pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
1618
1619         if( DirectoryCB->ObjectInformation->FileType == AFS_FILE_TYPE_SYMLINK)
1620         {
1621
1622             pParentDirectoryCB = AFSGetParentEntry( pCcb->NameArray);
1623
1624             AFSRetrieveParentPath( &pCcb->FullFileName,
1625                                    &uniParentPath);
1626
1627             RtlZeroMemory( &stFileInfo,
1628                            sizeof( AFSFileInfoCB));
1629
1630             //
1631             // Can't hold the Fcb while evaluating the path, leads to lock inversion
1632             //
1633
1634             AFSReleaseResource( &pFcb->NPFcb->Resource);
1635
1636             if( NT_SUCCESS( AFSRetrieveFileAttributes( pParentDirectoryCB,
1637                                                        DirectoryCB,
1638                                                        &uniParentPath,
1639                                                        pCcb->NameArray,
1640                                                        &pCcb->AuthGroup,
1641                                                        &stFileInfo)))
1642             {
1643
1644                 if ( ulFileAttribs == FILE_ATTRIBUTE_NORMAL)
1645                 {
1646
1647                     ulFileAttribs = FILE_ATTRIBUTE_REPARSE_POINT;
1648                 }
1649                 else
1650                 {
1651
1652                     ulFileAttribs |= FILE_ATTRIBUTE_REPARSE_POINT;
1653                 }
1654
1655                 if ( stFileInfo.FileAttributes & FILE_ATTRIBUTE_DIRECTORY)
1656                 {
1657
1658                     ulFileAttribs |= FILE_ATTRIBUTE_DIRECTORY;
1659                 }
1660             }
1661
1662             AFSAcquireShared( &pFcb->NPFcb->Resource,
1663                               TRUE);
1664         }
1665
1666         AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1667                       AFS_TRACE_LEVEL_VERBOSE_2,
1668                       "AFSAttribTagInfo %wZ Type 0x%x Attrib 0x%x -> 0x%x\n",
1669                       &pCcb->DirectoryCB->NameInformation.FileName,
1670                       pCcb->DirectoryCB->ObjectInformation->FileType,
1671                       pCcb->DirectoryCB->ObjectInformation->FileAttributes,
1672                       ulFileAttribs);
1673
1674         Buffer->FileAttributes = ulFileAttribs;
1675
1676         if( DirectoryCB->NameInformation.FileName.Buffer[ 0] == L'.' &&
1677             BooleanFlagOn( pDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_HIDE_DOT_NAMES))
1678         {
1679
1680             if ( Buffer->FileAttributes != FILE_ATTRIBUTE_NORMAL)
1681             {
1682
1683                 Buffer->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
1684             }
1685             else
1686             {
1687
1688                 Buffer->FileAttributes = FILE_ATTRIBUTE_HIDDEN;
1689             }
1690         }
1691
1692         if( BooleanFlagOn( DirectoryCB->ObjectInformation->FileAttributes, FILE_ATTRIBUTE_REPARSE_POINT))
1693         {
1694             Buffer->ReparseTag = IO_REPARSE_TAG_SURROGATE|IO_REPARSE_TAG_OPENAFS_DFS;
1695         }
1696
1697         *Length -= sizeof( FILE_ATTRIBUTE_TAG_INFORMATION);
1698
1699         ntStatus = STATUS_SUCCESS;
1700     }
1701
1702     return ntStatus;
1703 }
1704
1705 NTSTATUS
1706 AFSQueryRemoteProtocolInfo( IN PIRP Irp,
1707                             IN AFSDirectoryCB *DirectoryCB,
1708                             IN OUT FILE_REMOTE_PROTOCOL_INFORMATION *Buffer,
1709                             IN OUT PLONG Length)
1710 {
1711
1712     NTSTATUS ntStatus = STATUS_BUFFER_TOO_SMALL;
1713     ULONG ulCopyLength = 0;
1714     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
1715
1716     if( *Length >= sizeof( FILE_REMOTE_PROTOCOL_INFORMATION))
1717     {
1718
1719         RtlZeroMemory( Buffer,
1720                        *Length);
1721
1722         Buffer->StructureVersion = 1;
1723
1724         Buffer->StructureSize = sizeof(FILE_REMOTE_PROTOCOL_INFORMATION);
1725
1726         Buffer->Protocol = WNNC_NET_OPENAFS;
1727
1728         Buffer->ProtocolMajorVersion = 3;
1729
1730         Buffer->ProtocolMinorVersion = 0;
1731
1732         Buffer->ProtocolRevision = 0;
1733
1734         *Length -= sizeof( FILE_REMOTE_PROTOCOL_INFORMATION);
1735
1736         ntStatus = STATUS_SUCCESS;
1737     }
1738
1739     return ntStatus;
1740 }
1741
1742 NTSTATUS
1743 AFSQueryPhysicalNameInfo( IN PIRP Irp,
1744                           IN AFSDirectoryCB *DirectoryCB,
1745                           IN OUT PFILE_NETWORK_PHYSICAL_NAME_INFORMATION Buffer,
1746                           IN OUT PLONG Length)
1747 {
1748
1749     NTSTATUS ntStatus = STATUS_SUCCESS;
1750     ULONG ulCopyLength = 0;
1751     ULONG cchCopied = 0;
1752     AFSFcb *pFcb = NULL;
1753     AFSCcb *pCcb = NULL;
1754     IO_STACK_LOCATION *pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1755     BOOLEAN bAddLeadingSlash = FALSE;
1756     USHORT usFullNameLength = 0;
1757
1758     pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
1759
1760     pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
1761
1762     if( *Length >= FIELD_OFFSET( FILE_NETWORK_PHYSICAL_NAME_INFORMATION, FileName))
1763     {
1764
1765         RtlZeroMemory( Buffer,
1766                        *Length);
1767
1768         if( pCcb->FullFileName.Length == 0 ||
1769             pCcb->FullFileName.Buffer[ 0] != L'\\')
1770         {
1771             bAddLeadingSlash = TRUE;
1772         }
1773
1774         usFullNameLength = pCcb->FullFileName.Length;
1775
1776         if( bAddLeadingSlash)
1777         {
1778             usFullNameLength += sizeof( WCHAR);
1779         }
1780
1781         if( *Length >= (LONG)(FIELD_OFFSET( FILE_NETWORK_PHYSICAL_NAME_INFORMATION, FileName) + (LONG)usFullNameLength))
1782         {
1783             ulCopyLength = (LONG)usFullNameLength;
1784         }
1785         else
1786         {
1787
1788             ulCopyLength = *Length - FIELD_OFFSET( FILE_NETWORK_PHYSICAL_NAME_INFORMATION, FileName);
1789
1790             ntStatus = STATUS_BUFFER_OVERFLOW;
1791         }
1792
1793         Buffer->FileNameLength = (ULONG)usFullNameLength;
1794
1795         *Length -= FIELD_OFFSET( FILE_NETWORK_PHYSICAL_NAME_INFORMATION, FileName);
1796
1797         if( ulCopyLength > 0)
1798         {
1799
1800             if( bAddLeadingSlash)
1801             {
1802
1803                 Buffer->FileName[ cchCopied] = L'\\';
1804
1805                 ulCopyLength -= sizeof( WCHAR);
1806                 *Length -= sizeof( WCHAR);
1807                 cchCopied++;
1808             }
1809
1810             if( ulCopyLength >= pCcb->FullFileName.Length)
1811             {
1812
1813                 RtlCopyMemory( &Buffer->FileName[ cchCopied],
1814                                pCcb->FullFileName.Buffer,
1815                                pCcb->FullFileName.Length);
1816
1817                 ulCopyLength -= pCcb->FullFileName.Length;
1818                 *Length -= pCcb->FullFileName.Length;
1819                 cchCopied += pCcb->FullFileName.Length/sizeof( WCHAR);
1820             }
1821             else
1822             {
1823
1824                 RtlCopyMemory( &Buffer->FileName[ cchCopied],
1825                                pCcb->FullFileName.Buffer,
1826                                ulCopyLength);
1827
1828                 *Length -= ulCopyLength;
1829             }
1830         }
1831     }
1832     else
1833     {
1834
1835         ntStatus = STATUS_BUFFER_TOO_SMALL;
1836     }
1837
1838     return ntStatus;
1839 }
1840
1841 NTSTATUS
1842 AFSSetBasicInfo( IN PIRP Irp,
1843                  IN AFSDirectoryCB *DirectoryCB)
1844 {
1845     NTSTATUS ntStatus = STATUS_SUCCESS;
1846     PFILE_BASIC_INFORMATION pBuffer;
1847     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1848     ULONG ulNotifyFilter = 0;
1849     AFSCcb *pCcb = NULL;
1850
1851     __Enter
1852     {
1853
1854         pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
1855
1856         pBuffer = (PFILE_BASIC_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
1857
1858         pCcb->FileUnwindInfo.FileAttributes = (ULONG)-1;
1859
1860         if( pBuffer->FileAttributes != (ULONGLONG)0)
1861         {
1862
1863             if( DirectoryCB->ObjectInformation->Fcb->Header.NodeTypeCode == AFS_FILE_FCB &&
1864                 BooleanFlagOn( pBuffer->FileAttributes, FILE_ATTRIBUTE_DIRECTORY))
1865             {
1866
1867                 try_return( ntStatus = STATUS_INVALID_PARAMETER);
1868             }
1869
1870             if( DirectoryCB->ObjectInformation->Fcb->Header.NodeTypeCode == AFS_DIRECTORY_FCB)
1871             {
1872
1873                 pBuffer->FileAttributes |= FILE_ATTRIBUTE_DIRECTORY;
1874             }
1875
1876             pCcb->FileUnwindInfo.FileAttributes = DirectoryCB->ObjectInformation->FileAttributes;
1877
1878             DirectoryCB->ObjectInformation->FileAttributes = pBuffer->FileAttributes;
1879
1880             ulNotifyFilter |= FILE_NOTIFY_CHANGE_ATTRIBUTES;
1881
1882             SetFlag( DirectoryCB->ObjectInformation->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED);
1883         }
1884
1885         pCcb->FileUnwindInfo.CreationTime.QuadPart = (ULONGLONG)-1;
1886
1887         if( pBuffer->CreationTime.QuadPart != (ULONGLONG)-1 &&
1888             pBuffer->CreationTime.QuadPart != (ULONGLONG)0)
1889         {
1890
1891             pCcb->FileUnwindInfo.CreationTime.QuadPart = DirectoryCB->ObjectInformation->CreationTime.QuadPart;
1892
1893             DirectoryCB->ObjectInformation->CreationTime.QuadPart = pBuffer->CreationTime.QuadPart;
1894
1895             ulNotifyFilter |= FILE_NOTIFY_CHANGE_CREATION;
1896
1897             SetFlag( DirectoryCB->ObjectInformation->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_CREATE_TIME);
1898         }
1899
1900         pCcb->FileUnwindInfo.LastAccessTime.QuadPart = (ULONGLONG)-1;
1901
1902         if( pBuffer->LastAccessTime.QuadPart != (ULONGLONG)-1 &&
1903             pBuffer->LastAccessTime.QuadPart != (ULONGLONG)0)
1904         {
1905
1906             pCcb->FileUnwindInfo.LastAccessTime.QuadPart = DirectoryCB->ObjectInformation->LastAccessTime.QuadPart;
1907
1908             DirectoryCB->ObjectInformation->LastAccessTime.QuadPart = pBuffer->LastAccessTime.QuadPart;
1909
1910             ulNotifyFilter |= FILE_NOTIFY_CHANGE_LAST_ACCESS;
1911
1912             SetFlag( DirectoryCB->ObjectInformation->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_ACCESS_TIME);
1913         }
1914
1915         pCcb->FileUnwindInfo.LastWriteTime.QuadPart = (ULONGLONG)-1;
1916
1917         if( pBuffer->LastWriteTime.QuadPart != (ULONGLONG)-1 &&
1918             pBuffer->LastWriteTime.QuadPart != (ULONGLONG)0)
1919         {
1920
1921             pCcb->FileUnwindInfo.LastWriteTime.QuadPart = DirectoryCB->ObjectInformation->LastWriteTime.QuadPart;
1922
1923             DirectoryCB->ObjectInformation->LastWriteTime.QuadPart = pBuffer->LastWriteTime.QuadPart;
1924
1925             ulNotifyFilter |= FILE_NOTIFY_CHANGE_LAST_WRITE;
1926
1927             SetFlag( DirectoryCB->ObjectInformation->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_LAST_WRITE_TIME);
1928         }
1929
1930         pCcb->FileUnwindInfo.ChangeTime.QuadPart = (ULONGLONG)-1;
1931
1932         if( pBuffer->ChangeTime.QuadPart != (ULONGLONG)-1 &&
1933             pBuffer->ChangeTime.QuadPart != (ULONGLONG)0)
1934         {
1935
1936             pCcb->FileUnwindInfo.ChangeTime.QuadPart = DirectoryCB->ObjectInformation->ChangeTime.QuadPart;
1937
1938             DirectoryCB->ObjectInformation->ChangeTime.QuadPart = pBuffer->ChangeTime.QuadPart;
1939
1940             ulNotifyFilter |= FILE_NOTIFY_CHANGE_LAST_ACCESS;
1941
1942             SetFlag( DirectoryCB->ObjectInformation->Fcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_CHANGE_TIME);
1943         }
1944
1945         if( ulNotifyFilter > 0)
1946         {
1947
1948             if( DirectoryCB->ObjectInformation->ParentObjectInformation != NULL)
1949             {
1950
1951                 AFSFsRtlNotifyFullReportChange( DirectoryCB->ObjectInformation->ParentObjectInformation,
1952                                                 pCcb,
1953                                                 (ULONG)ulNotifyFilter,
1954                                                 (ULONG)FILE_ACTION_MODIFIED);
1955             }
1956         }
1957
1958 try_exit:
1959
1960         NOTHING;
1961     }
1962
1963     return ntStatus;
1964 }
1965
1966 NTSTATUS
1967 AFSSetDispositionInfo( IN PIRP Irp,
1968                        IN AFSDirectoryCB *DirectoryCB)
1969 {
1970     NTSTATUS ntStatus = STATUS_SUCCESS;
1971     PFILE_DISPOSITION_INFORMATION pBuffer;
1972     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
1973     AFSFcb *pFcb = NULL;
1974     AFSCcb *pCcb = NULL;
1975
1976     __Enter
1977     {
1978
1979         pBuffer = (PFILE_DISPOSITION_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
1980
1981         pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
1982
1983         pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
1984
1985         //
1986         // Can't delete the root
1987         //
1988
1989         if( pFcb->Header.NodeTypeCode == AFS_ROOT_FCB)
1990         {
1991
1992             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
1993                           AFS_TRACE_LEVEL_ERROR,
1994                           "AFSSetDispositionInfo Attempt to delete root entry\n");
1995
1996             try_return( ntStatus = STATUS_CANNOT_DELETE);
1997         }
1998
1999         //
2000         // If the file is read only then do not allow the delete
2001         //
2002
2003         if( BooleanFlagOn( DirectoryCB->ObjectInformation->FileAttributes, FILE_ATTRIBUTE_READONLY))
2004         {
2005
2006             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2007                           AFS_TRACE_LEVEL_ERROR,
2008                           "AFSSetDispositionInfo Attempt to delete read only entry %wZ\n",
2009                           &DirectoryCB->NameInformation.FileName);
2010
2011             try_return( ntStatus = STATUS_CANNOT_DELETE);
2012         }
2013
2014         if( pBuffer->DeleteFile)
2015         {
2016
2017             //
2018             // Check if the caller can delete the file
2019             //
2020
2021             ntStatus = AFSNotifyDelete( DirectoryCB,
2022                                         &pCcb->AuthGroup,
2023                                         TRUE);
2024
2025             if( !NT_SUCCESS( ntStatus))
2026             {
2027
2028                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2029                               AFS_TRACE_LEVEL_ERROR,
2030                               "AFSSetDispositionInfo Cannot delete entry %wZ Status %08lX\n",
2031                               &DirectoryCB->NameInformation.FileName,
2032                               ntStatus);
2033
2034                 try_return( ntStatus);
2035             }
2036
2037             if( pFcb->Header.NodeTypeCode == AFS_DIRECTORY_FCB)
2038             {
2039
2040                 //
2041                 // Check if this is a directory that there are not currently other opens
2042                 //
2043
2044                 if( pFcb->ObjectInformation->Specific.Directory.ChildOpenHandleCount > 0)
2045                 {
2046
2047                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2048                                   AFS_TRACE_LEVEL_ERROR,
2049                                   "AFSSetDispositionInfo Attempt to delete directory %wZ with open %u handles\n",
2050                                   &DirectoryCB->NameInformation.FileName,
2051                                   pFcb->ObjectInformation->Specific.Directory.ChildOpenHandleCount);
2052
2053                     try_return( ntStatus = STATUS_DIRECTORY_NOT_EMPTY);
2054                 }
2055
2056                 if( !AFSIsDirectoryEmptyForDelete( pFcb))
2057                 {
2058
2059                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2060                                   AFS_TRACE_LEVEL_ERROR,
2061                                   "AFSSetDispositionInfo Attempt to delete non-empty directory %wZ\n",
2062                                   &DirectoryCB->NameInformation.FileName);
2063
2064                     try_return( ntStatus = STATUS_DIRECTORY_NOT_EMPTY);
2065                 }
2066
2067                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2068                               AFS_TRACE_LEVEL_VERBOSE,
2069                               "AFSSetDispositionInfo Setting PENDING_DELETE on DirEntry  %p Name %wZ\n",
2070                               DirectoryCB,
2071                               &DirectoryCB->NameInformation.FileName);
2072
2073                 SetFlag( pCcb->DirectoryCB->Flags, AFS_DIR_ENTRY_PENDING_DELETE);
2074             }
2075             else if( pFcb->Header.NodeTypeCode == AFS_FILE_FCB)
2076             {
2077
2078                 //
2079                 // Attempt to flush any outstanding data
2080                 //
2081
2082                 if( !MmFlushImageSection( &pFcb->NPFcb->SectionObjectPointers,
2083                                           MmFlushForDelete))
2084                 {
2085
2086                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2087                                   AFS_TRACE_LEVEL_ERROR,
2088                                   "AFSSetDispositionInfo Failed to flush image section for delete Entry %wZ\n",
2089                                   &DirectoryCB->NameInformation.FileName);
2090
2091                     try_return( ntStatus = STATUS_CANNOT_DELETE);
2092                 }
2093
2094                 //
2095                 // Set PENDING_DELETE before CcPurgeCacheSection to avoid a
2096                 // deadlock with Trend Micro's Enterprise anti-virus product
2097                 // which attempts to open the file which is being deleted.
2098                 //
2099
2100                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2101                               AFS_TRACE_LEVEL_VERBOSE,
2102                               "AFSSetDispositionInfo Setting PENDING_DELETE on DirEntry %p Name %wZ\n",
2103                               DirectoryCB,
2104                               &DirectoryCB->NameInformation.FileName);
2105
2106                 SetFlag( pCcb->DirectoryCB->Flags, AFS_DIR_ENTRY_PENDING_DELETE);
2107
2108                 //
2109                 // Purge the cache as well
2110                 //
2111
2112                 if( pFcb->NPFcb->SectionObjectPointers.DataSectionObject != NULL)
2113                 {
2114
2115                     if ( !CcPurgeCacheSection( &pFcb->NPFcb->SectionObjectPointers,
2116                                                NULL,
2117                                                0,
2118                                                TRUE))
2119                     {
2120
2121                         SetFlag( pFcb->Flags, AFS_FCB_FLAG_PURGE_ON_CLOSE);
2122                     }
2123                 }
2124             }
2125         }
2126         else
2127         {
2128
2129             ClearFlag( pCcb->DirectoryCB->Flags, AFS_DIR_ENTRY_PENDING_DELETE);
2130         }
2131
2132         //
2133         // OK, should be good to go, set the flag in the file object
2134         //
2135
2136         pIrpSp->FileObject->DeletePending = pBuffer->DeleteFile;
2137
2138 try_exit:
2139
2140         NOTHING;
2141     }
2142
2143     return ntStatus;
2144 }
2145
2146 NTSTATUS
2147 AFSSetRenameInfo( IN PIRP Irp)
2148 {
2149
2150     NTSTATUS ntStatus = STATUS_SUCCESS;
2151     AFSDeviceExt *pDeviceExt = (AFSDeviceExt *)AFSRDRDeviceObject->DeviceExtension;
2152     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2153     IO_STATUS_BLOCK stIoSb = {0,0};
2154     AFSFcb *pSrcFcb = NULL, *pTargetDcb = NULL, *pTargetFcb = NULL;
2155     AFSCcb *pSrcCcb = NULL, *pTargetDirCcb = NULL;
2156     PFILE_OBJECT pSrcFileObj = pIrpSp->FileObject;
2157     PFILE_OBJECT pTargetFileObj = pIrpSp->Parameters.SetFile.FileObject;
2158     PFILE_RENAME_INFORMATION pRenameInfo = NULL;
2159     UNICODE_STRING uniTargetName, uniSourceName;
2160     BOOLEAN bReplaceIfExists = FALSE;
2161     UNICODE_STRING uniShortName;
2162     AFSDirectoryCB *pTargetDirEntry = NULL;
2163     ULONG ulTargetCRC = 0;
2164     BOOLEAN bTargetEntryExists = FALSE;
2165     AFSObjectInfoCB *pSrcObject = NULL, *pTargetObject = NULL;
2166     AFSObjectInfoCB *pSrcParentObject = NULL, *pTargetParentObject = NULL;
2167     AFSFileID stNewFid, stTmpTargetFid;
2168     ULONG ulNotificationAction = 0, ulNotifyFilter = 0;
2169     UNICODE_STRING uniFullTargetPath;
2170     BOOLEAN bCommonParent = FALSE;
2171     BOOLEAN bReleaseTargetDirLock = FALSE;
2172     BOOLEAN bReleaseSourceDirLock = FALSE;
2173     PERESOURCE  pSourceDirLock = NULL;
2174     LONG lCount;
2175
2176     __Enter
2177     {
2178
2179         bReplaceIfExists = pIrpSp->Parameters.SetFile.ReplaceIfExists;
2180
2181         pSrcFcb = (AFSFcb *)pSrcFileObj->FsContext;
2182         pSrcCcb = (AFSCcb *)pSrcFileObj->FsContext2;
2183
2184         pSrcObject = pSrcFcb->ObjectInformation;
2185         pSrcParentObject = pSrcFcb->ObjectInformation->ParentObjectInformation;
2186
2187         //
2188         // Perform some basic checks to ensure FS integrity
2189         //
2190
2191         if( pSrcFcb->Header.NodeTypeCode == AFS_ROOT_FCB)
2192         {
2193
2194             //
2195             // Can't rename the root directory
2196             //
2197
2198             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2199                           AFS_TRACE_LEVEL_ERROR,
2200                           "AFSSetRenameInfo Attempt to rename root entry\n");
2201
2202             try_return( ntStatus = STATUS_INVALID_PARAMETER);
2203         }
2204
2205         if( pSrcFcb->Header.NodeTypeCode == AFS_DIRECTORY_FCB)
2206         {
2207
2208             //
2209             // If there are any open children then fail the rename
2210             //
2211
2212             if( pSrcFcb->ObjectInformation->Specific.Directory.ChildOpenHandleCount > 0)
2213             {
2214
2215                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2216                               AFS_TRACE_LEVEL_ERROR,
2217                               "AFSSetRenameInfo Attempt to rename directory with open children %wZ\n",
2218                               &pSrcCcb->DirectoryCB->NameInformation.FileName);
2219
2220                 try_return( ntStatus = STATUS_ACCESS_DENIED);
2221             }
2222         }
2223
2224         //
2225         // Extract off the final component name from the Fcb
2226         //
2227
2228         uniSourceName.Length = (USHORT)pSrcCcb->DirectoryCB->NameInformation.FileName.Length;
2229         uniSourceName.MaximumLength = uniSourceName.Length;
2230
2231         uniSourceName.Buffer = pSrcCcb->DirectoryCB->NameInformation.FileName.Buffer;
2232
2233         //
2234         // Resolve the target fileobject
2235         //
2236
2237         if( pTargetFileObj == NULL)
2238         {
2239
2240             //
2241             // This is a simple rename. Here the target directory is the same as the source parent directory
2242             // and the name is retrieved from the system buffer information
2243             //
2244
2245             pRenameInfo = (PFILE_RENAME_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
2246
2247             pTargetParentObject = pSrcParentObject;
2248
2249             pTargetDcb = pTargetParentObject->Fcb;
2250
2251             uniTargetName.Length = (USHORT)pRenameInfo->FileNameLength;
2252             uniTargetName.Buffer = (PWSTR)&pRenameInfo->FileName;
2253         }
2254         else
2255         {
2256
2257             //
2258             // So here we have the target directory taken from the targetfile object
2259             //
2260
2261             pTargetDcb = (AFSFcb *)pTargetFileObj->FsContext;
2262
2263             pTargetDirCcb = (AFSCcb *)pTargetFileObj->FsContext2;
2264
2265             pTargetParentObject = (AFSObjectInfoCB *)pTargetDcb->ObjectInformation;
2266
2267             //
2268             // Grab the target name which we setup in the IRP_MJ_CREATE handler. By how we set this up
2269             // it is only the target component of the rename operation
2270             //
2271
2272             uniTargetName = *((PUNICODE_STRING)&pTargetFileObj->FileName);
2273         }
2274
2275         //
2276         // The quick check to see if they are not really performing a rename
2277         // Do the names match? Only do this where the parent directories are
2278         // the same
2279         //
2280
2281         if( pTargetParentObject == pSrcParentObject)
2282         {
2283
2284             if( FsRtlAreNamesEqual( &uniTargetName,
2285                                     &uniSourceName,
2286                                     FALSE,
2287                                     NULL))
2288             {
2289                 try_return( ntStatus = STATUS_SUCCESS);
2290             }
2291
2292             bCommonParent = TRUE;
2293         }
2294         else
2295         {
2296
2297             bCommonParent = FALSE;
2298         }
2299
2300         //
2301         // We do not allow cross-volume renames to occur
2302         //
2303
2304         if( pTargetParentObject->VolumeCB != pSrcObject->VolumeCB)
2305         {
2306
2307             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2308                           AFS_TRACE_LEVEL_ERROR,
2309                           "AFSSetRenameInfo Attempt to rename directory to different volume %wZ\n",
2310                           &pSrcCcb->DirectoryCB->NameInformation.FileName);
2311
2312             try_return( ntStatus = STATUS_NOT_SAME_DEVICE);
2313         }
2314
2315         ulTargetCRC = AFSGenerateCRC( &uniTargetName,
2316                                       FALSE);
2317
2318         AFSAcquireExcl( pTargetParentObject->Specific.Directory.DirectoryNodeHdr.TreeLock,
2319                         TRUE);
2320
2321         bReleaseTargetDirLock = TRUE;
2322
2323         if( pTargetParentObject != pSrcParentObject)
2324         {
2325             AFSAcquireExcl( pSrcParentObject->Specific.Directory.DirectoryNodeHdr.TreeLock,
2326                             TRUE);
2327
2328             bReleaseSourceDirLock = TRUE;
2329
2330             pSourceDirLock = pSrcParentObject->Specific.Directory.DirectoryNodeHdr.TreeLock;
2331         }
2332
2333         AFSLocateCaseSensitiveDirEntry( pTargetParentObject->Specific.Directory.DirectoryNodeHdr.CaseSensitiveTreeHead,
2334                                         ulTargetCRC,
2335                                         &pTargetDirEntry);
2336
2337         if( pTargetDirEntry == NULL)
2338         {
2339
2340             //
2341             // Missed so perform a case insensitive lookup
2342             //
2343
2344             ulTargetCRC = AFSGenerateCRC( &uniTargetName,
2345                                           TRUE);
2346
2347             AFSLocateCaseInsensitiveDirEntry( pTargetParentObject->Specific.Directory.DirectoryNodeHdr.CaseInsensitiveTreeHead,
2348                                               ulTargetCRC,
2349                                               &pTargetDirEntry);
2350         }
2351
2352         if ( !BooleanFlagOn( pDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_DISABLE_SHORTNAMES) &&
2353              pTargetDirEntry == NULL && RtlIsNameLegalDOS8Dot3( &uniTargetName,
2354                                                                NULL,
2355                                                                NULL))
2356         {
2357             //
2358             // Try the short name
2359             //
2360             AFSLocateShortNameDirEntry( pTargetParentObject->Specific.Directory.ShortNameTree,
2361                                         ulTargetCRC,
2362                                         &pTargetDirEntry);
2363         }
2364
2365         //
2366         // Increment our ref count on the dir entry
2367         //
2368
2369         if( pTargetDirEntry != NULL)
2370         {
2371
2372             ASSERT( pTargetParentObject == pTargetDirEntry->ObjectInformation->ParentObjectInformation);
2373
2374             lCount = InterlockedIncrement( &pTargetDirEntry->OpenReferenceCount);
2375
2376             if( !bReplaceIfExists)
2377             {
2378
2379                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2380                               AFS_TRACE_LEVEL_ERROR,
2381                               "AFSSetRenameInfo Attempt to rename directory with target collision %wZ Target %wZ\n",
2382                               &pSrcCcb->DirectoryCB->NameInformation.FileName,
2383                               &pTargetDirEntry->NameInformation.FileName);
2384
2385                 try_return( ntStatus = STATUS_OBJECT_NAME_COLLISION);
2386             }
2387
2388             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2389                           AFS_TRACE_LEVEL_ERROR,
2390                           "AFSSetRenameInfo Target %wZ exists DE %p Count %08lX, performing delete of target\n",
2391                           &pTargetDirEntry->NameInformation.FileName,
2392                           pTargetDirEntry,
2393                           pTargetDirEntry->OpenReferenceCount);
2394
2395             //
2396             // Pull the directory entry from the parent
2397             //
2398
2399             AFSRemoveDirNodeFromParent( pTargetParentObject,
2400                                         pTargetDirEntry,
2401                                         FALSE);
2402
2403             bTargetEntryExists = TRUE;
2404         }
2405         else
2406         {
2407             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2408                           AFS_TRACE_LEVEL_VERBOSE,
2409                           "AFSSetRenameInfo Target does NOT exist, normal rename\n");
2410         }
2411
2412         //
2413         // We need to remove the DirEntry from the parent node, update the index
2414         // and reinsert it into the parent tree. Note that for entries with the
2415         // same parent we do not pull the node from the enumeration list
2416         //
2417
2418         AFSRemoveDirNodeFromParent( pSrcFcb->ObjectInformation->ParentObjectInformation,
2419                                     pSrcCcb->DirectoryCB,
2420                                     !bCommonParent);
2421
2422         //
2423         // OK, this is a simple rename. Issue the rename
2424         // request to the service.
2425         //
2426
2427         ntStatus = AFSNotifyRename( pSrcFcb->ObjectInformation,
2428                                     &pSrcCcb->AuthGroup,
2429                                     pSrcFcb->ObjectInformation->ParentObjectInformation,
2430                                     pTargetDcb->ObjectInformation,
2431                                     pSrcCcb->DirectoryCB,
2432                                     &uniTargetName,
2433                                     &stNewFid);
2434
2435         if( !NT_SUCCESS( ntStatus))
2436         {
2437
2438             //
2439             // Attempt to re-insert the directory entry
2440             //
2441
2442             AFSInsertDirectoryNode( pSrcFcb->ObjectInformation->ParentObjectInformation,
2443                                     pSrcCcb->DirectoryCB,
2444                                     !bCommonParent);
2445
2446             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2447                           AFS_TRACE_LEVEL_ERROR,
2448                           "AFSSetRenameInfo Failed rename of %wZ to target %wZ Status %08lX\n",
2449                           &pSrcCcb->DirectoryCB->NameInformation.FileName,
2450                           &uniTargetName,
2451                           ntStatus);
2452
2453             try_return( ntStatus);
2454         }
2455
2456         //
2457         // Set the notification up for the source file
2458         //
2459
2460         if( pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation == pTargetParentObject &&
2461             !bTargetEntryExists)
2462         {
2463
2464             ulNotificationAction = FILE_ACTION_RENAMED_OLD_NAME;
2465         }
2466         else
2467         {
2468
2469             ulNotificationAction = FILE_ACTION_REMOVED;
2470         }
2471
2472         if( pSrcCcb->DirectoryCB->ObjectInformation->FileType == AFS_FILE_TYPE_DIRECTORY)
2473         {
2474
2475             ulNotifyFilter = FILE_NOTIFY_CHANGE_DIR_NAME;
2476         }
2477         else
2478         {
2479
2480             ulNotifyFilter = FILE_NOTIFY_CHANGE_FILE_NAME;
2481         }
2482
2483         AFSFsRtlNotifyFullReportChange( pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation,
2484                                         pSrcCcb,
2485                                         (ULONG)ulNotifyFilter,
2486                                         (ULONG)ulNotificationAction);
2487
2488         //
2489         // Update the name in the dir entry.
2490         //
2491
2492         ntStatus = AFSUpdateDirEntryName( pSrcCcb->DirectoryCB,
2493                                           &uniTargetName);
2494
2495         if( !NT_SUCCESS( ntStatus))
2496         {
2497
2498             //
2499             // Attempt to re-insert the directory entry
2500             //
2501
2502             AFSInsertDirectoryNode( pSrcFcb->ObjectInformation->ParentObjectInformation,
2503                                     pSrcCcb->DirectoryCB,
2504                                     !bCommonParent);
2505
2506             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2507                           AFS_TRACE_LEVEL_ERROR,
2508                           "AFSSetRenameInfo Failed update of dir entry %wZ to target %wZ Status %08lX\n",
2509                           &pSrcCcb->DirectoryCB->NameInformation.FileName,
2510                           &uniTargetName,
2511                           ntStatus);
2512
2513             try_return( ntStatus);
2514         }
2515
2516         //
2517         // Update the object information block, if needed
2518         //
2519
2520         if( !AFSIsEqualFID( &pSrcObject->FileId,
2521                             &stNewFid))
2522         {
2523
2524             AFSAcquireExcl( pSrcObject->VolumeCB->ObjectInfoTree.TreeLock,
2525                             TRUE);
2526
2527             //
2528             // Remove the old information entry
2529             //
2530
2531             AFSRemoveHashEntry( &pSrcObject->VolumeCB->ObjectInfoTree.TreeHead,
2532                                 &pSrcObject->TreeEntry);
2533
2534             RtlCopyMemory( &pSrcObject->FileId,
2535                            &stNewFid,
2536                            sizeof( AFSFileID));
2537
2538             //
2539             // Insert the entry into the new object table.
2540             //
2541
2542             pSrcObject->TreeEntry.HashIndex = AFSCreateLowIndex( &pSrcObject->FileId);
2543
2544             if( pSrcObject->VolumeCB->ObjectInfoTree.TreeHead == NULL)
2545             {
2546
2547                 pSrcObject->VolumeCB->ObjectInfoTree.TreeHead = &pSrcObject->TreeEntry;
2548             }
2549             else
2550             {
2551
2552                 if ( !NT_SUCCESS( AFSInsertHashEntry( pSrcObject->VolumeCB->ObjectInfoTree.TreeHead,
2553                                                      &pSrcObject->TreeEntry)))
2554                 {
2555
2556                     //
2557                     // Lost a race, an ObjectInfo object already exists for this FID.
2558                     // Let this copy be garbage collected.
2559                     //
2560
2561                     ClearFlag( pSrcObject->Flags, AFS_OBJECT_INSERTED_HASH_TREE);
2562                 }
2563             }
2564
2565             AFSReleaseResource( pSrcObject->VolumeCB->ObjectInfoTree.TreeLock);
2566         }
2567
2568         //
2569         // Update the hash values for the name trees.
2570         //
2571
2572         pSrcCcb->DirectoryCB->CaseSensitiveTreeEntry.HashIndex = AFSGenerateCRC( &pSrcCcb->DirectoryCB->NameInformation.FileName,
2573                                                                                  FALSE);
2574
2575         pSrcCcb->DirectoryCB->CaseInsensitiveTreeEntry.HashIndex = AFSGenerateCRC( &pSrcCcb->DirectoryCB->NameInformation.FileName,
2576                                                                                    TRUE);
2577
2578         if( !BooleanFlagOn( pDeviceExt->DeviceFlags, AFS_DEVICE_FLAG_DISABLE_SHORTNAMES) &&
2579             pSrcCcb->DirectoryCB->NameInformation.ShortNameLength > 0 &&
2580             !RtlIsNameLegalDOS8Dot3( &pSrcCcb->DirectoryCB->NameInformation.FileName,
2581                                      NULL,
2582                                      NULL))
2583         {
2584
2585             uniShortName.Length = pSrcCcb->DirectoryCB->NameInformation.ShortNameLength;
2586             uniShortName.MaximumLength = uniShortName.Length;
2587             uniShortName.Buffer = pSrcCcb->DirectoryCB->NameInformation.ShortName;
2588
2589             pSrcCcb->DirectoryCB->Type.Data.ShortNameTreeEntry.HashIndex = AFSGenerateCRC( &uniShortName,
2590                                                                                            TRUE);
2591
2592             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2593                           AFS_TRACE_LEVEL_VERBOSE,
2594                           "AFSSetRenameInfo Initialized short name hash for %wZ longname %wZ\n",
2595                           &uniShortName,
2596                           &pSrcCcb->DirectoryCB->NameInformation.FileName);
2597         }
2598         else
2599         {
2600
2601             pSrcCcb->DirectoryCB->Type.Data.ShortNameTreeEntry.HashIndex = 0;
2602         }
2603
2604         if( !bCommonParent)
2605         {
2606
2607             //
2608             // Update the file index for the object in the new parent
2609             //
2610
2611             pSrcCcb->DirectoryCB->FileIndex = (ULONG)InterlockedIncrement( &pTargetParentObject->Specific.Directory.DirectoryNodeHdr.ContentIndex);
2612         }
2613
2614         //
2615         // Re-insert the directory entry
2616         //
2617
2618         AFSInsertDirectoryNode( pTargetParentObject,
2619                                 pSrcCcb->DirectoryCB,
2620                                 !bCommonParent);
2621
2622         //
2623         // Update the parent pointer in the source object if they are different
2624         //
2625
2626         if( pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation != pTargetParentObject)
2627         {
2628
2629             lCount = InterlockedDecrement( &pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation->Specific.Directory.ChildOpenHandleCount);
2630
2631             lCount = InterlockedDecrement( &pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation->Specific.Directory.ChildOpenReferenceCount);
2632
2633             lCount = InterlockedIncrement( &pTargetParentObject->Specific.Directory.ChildOpenHandleCount);
2634
2635             lCount = InterlockedIncrement( &pTargetParentObject->Specific.Directory.ChildOpenReferenceCount);
2636
2637             pSrcCcb->DirectoryCB->ObjectInformation->ParentObjectInformation = pTargetParentObject;
2638
2639             ulNotificationAction = FILE_ACTION_ADDED;
2640         }
2641         else
2642         {
2643
2644             ulNotificationAction = FILE_ACTION_RENAMED_NEW_NAME;
2645         }
2646
2647         //
2648         // Now update the notification for the target file
2649         //
2650
2651         AFSFsRtlNotifyFullReportChange( pTargetParentObject->ParentObjectInformation,
2652                                         pSrcCcb,
2653                                         (ULONG)ulNotifyFilter,
2654                                         (ULONG)ulNotificationAction);
2655
2656         //
2657         // If we performed the rename of the target because it existed, we now need to
2658         // delete the tmp target we created above
2659         //
2660
2661         if( bTargetEntryExists)
2662         {
2663
2664             AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2665                           AFS_TRACE_LEVEL_VERBOSE,
2666                           "AFSSetRenameInfo Setting DELETE flag in dir entry %p name %wZ\n",
2667                           pTargetDirEntry,
2668                           &pTargetDirEntry->NameInformation.FileName);
2669
2670             SetFlag( pTargetDirEntry->Flags, AFS_DIR_ENTRY_DELETED);
2671
2672             //
2673             // Try and purge the cache map if this is a file
2674             //
2675
2676             if( pTargetDirEntry->ObjectInformation->FileType == AFS_FILE_TYPE_FILE &&
2677                 pTargetDirEntry->ObjectInformation->Fcb != NULL &&
2678                 pTargetDirEntry->OpenReferenceCount > 1)
2679             {
2680
2681                 pTargetFcb = pTargetDirEntry->ObjectInformation->Fcb;
2682
2683                 AFSAcquireExcl( &pTargetFcb->NPFcb->Resource,
2684                                 TRUE);
2685
2686                 //
2687                 // Close the section in the event it was mapped
2688                 //
2689
2690                 if( !MmForceSectionClosed( &pTargetFcb->NPFcb->SectionObjectPointers,
2691                                            TRUE))
2692                 {
2693
2694                     AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2695                                   AFS_TRACE_LEVEL_ERROR,
2696                                   "AFSSetRenameInfo Failed to delete section for target file %wZ\n",
2697                                   &pTargetDirEntry->NameInformation.FileName);
2698                 }
2699
2700                 AFSReleaseResource( &pTargetFcb->NPFcb->Resource);
2701             }
2702
2703             ASSERT( pTargetDirEntry->OpenReferenceCount > 0);
2704
2705             lCount = InterlockedDecrement( &pTargetDirEntry->OpenReferenceCount); // The count we added above
2706
2707             if( lCount == 0)
2708             {
2709
2710                 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
2711                               AFS_TRACE_LEVEL_VERBOSE,
2712                               "AFSSetRenameInfo Deleting dir entry %p name %wZ\n",
2713                               pTargetDirEntry,
2714                               &pTargetDirEntry->NameInformation.FileName);
2715
2716                 AFSDeleteDirEntry( pTargetParentObject,
2717                                    pTargetDirEntry);
2718             }
2719
2720             pTargetDirEntry = NULL;
2721         }
2722
2723 try_exit:
2724
2725
2726         if( !NT_SUCCESS( ntStatus))
2727         {
2728
2729             if( bTargetEntryExists)
2730             {
2731                 AFSInsertDirectoryNode( pTargetDirEntry->ObjectInformation->ParentObjectInformation,
2732                                         pTargetDirEntry,
2733                                         FALSE);
2734             }
2735         }
2736
2737         if( pTargetDirEntry != NULL)
2738         {
2739
2740             lCount = InterlockedDecrement( &pTargetDirEntry->OpenReferenceCount);
2741         }
2742
2743         if( bReleaseTargetDirLock)
2744         {
2745             AFSReleaseResource( pTargetParentObject->Specific.Directory.DirectoryNodeHdr.TreeLock);
2746         }
2747
2748         if( bReleaseSourceDirLock)
2749         {
2750             AFSReleaseResource( pSourceDirLock);
2751         }
2752     }
2753
2754     return ntStatus;
2755 }
2756
2757 NTSTATUS
2758 AFSSetPositionInfo( IN PIRP Irp,
2759                     IN AFSDirectoryCB *DirectoryCB)
2760 {
2761     NTSTATUS ntStatus = STATUS_SUCCESS;
2762     PFILE_POSITION_INFORMATION pBuffer;
2763     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2764
2765     pBuffer = (PFILE_POSITION_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
2766
2767     pIrpSp->FileObject->CurrentByteOffset.QuadPart = pBuffer->CurrentByteOffset.QuadPart;
2768
2769     return ntStatus;
2770 }
2771
2772 NTSTATUS
2773 AFSSetAllocationInfo( IN PIRP Irp,
2774                       IN AFSDirectoryCB *DirectoryCB)
2775 {
2776     NTSTATUS ntStatus = STATUS_SUCCESS;
2777     PFILE_ALLOCATION_INFORMATION pBuffer;
2778     BOOLEAN bReleasePaging = FALSE;
2779     BOOLEAN bTellCc = FALSE;
2780     BOOLEAN bTellService = FALSE;
2781     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2782     PFILE_OBJECT pFileObject = pIrpSp->FileObject;
2783     AFSFcb *pFcb = NULL;
2784     AFSCcb *pCcb = NULL;
2785     LARGE_INTEGER liSaveAlloc;
2786     LARGE_INTEGER liSaveFileSize;
2787     LARGE_INTEGER liSaveVDL;
2788
2789     pBuffer = (PFILE_ALLOCATION_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
2790
2791     pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
2792
2793     pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
2794
2795     //
2796     // save values to put back
2797     //
2798     liSaveAlloc = pFcb->Header.AllocationSize;
2799     liSaveFileSize = pFcb->Header.FileSize;
2800     liSaveVDL = pFcb->Header.ValidDataLength;
2801
2802     if( pFcb->Header.AllocationSize.QuadPart == pBuffer->AllocationSize.QuadPart ||
2803         pIrpSp->Parameters.SetFile.AdvanceOnly)
2804     {
2805         return STATUS_SUCCESS ;
2806     }
2807
2808     if( pFcb->Header.AllocationSize.QuadPart > pBuffer->AllocationSize.QuadPart)
2809     {
2810         //
2811         // Truncating the file
2812         //
2813         if( !MmCanFileBeTruncated( pFileObject->SectionObjectPointer,
2814                                    &pBuffer->AllocationSize))
2815         {
2816
2817             ntStatus = STATUS_USER_MAPPED_FILE ;
2818         }
2819         else
2820         {
2821             //
2822             // If this is a truncation we need to grab the paging IO resource.
2823             //
2824
2825             AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
2826                           AFS_TRACE_LEVEL_VERBOSE,
2827                           "AFSSetAllocationInfo Acquiring Fcb PagingIo lock %08lX EXCL %08lX\n",
2828                           &pFcb->NPFcb->PagingResource,
2829                           PsGetCurrentThread());
2830
2831             AFSAcquireExcl( &pFcb->NPFcb->PagingResource,
2832                             TRUE);
2833
2834             bReleasePaging = TRUE;
2835
2836             //
2837             // Must drop the Fcb Resource.  When changing the file size
2838             // a deadlock can occur with Trend Micro's filter if the file
2839             // size is set to zero.
2840             //
2841
2842             AFSReleaseResource( &pFcb->NPFcb->Resource);
2843
2844             pFcb->Header.AllocationSize = pBuffer->AllocationSize;
2845
2846             pFcb->ObjectInformation->AllocationSize = pBuffer->AllocationSize;
2847
2848             //
2849             // Tell Cc that Allocation is moved.
2850             //
2851             bTellCc = TRUE;
2852
2853             if( pFcb->Header.FileSize.QuadPart > pBuffer->AllocationSize.QuadPart)
2854             {
2855                 //
2856                 // We are pulling the EOF back as well so we need to tell
2857                 // the service.
2858                 //
2859                 bTellService = TRUE;
2860
2861                 pFcb->Header.FileSize = pBuffer->AllocationSize;
2862
2863                 pFcb->ObjectInformation->EndOfFile = pBuffer->AllocationSize;
2864             }
2865
2866         }
2867     }
2868     else
2869     {
2870         //
2871         // Tell Cc if allocation is increased.
2872         //
2873
2874         AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
2875                       AFS_TRACE_LEVEL_VERBOSE,
2876                       "AFSSetAllocationInfo Acquiring Fcb PagingIo lock %08lX EXCL %08lX\n",
2877                       &pFcb->NPFcb->PagingResource,
2878                       PsGetCurrentThread());
2879
2880         AFSAcquireExcl( &pFcb->NPFcb->PagingResource,
2881                         TRUE);
2882
2883         bReleasePaging = TRUE;
2884
2885         //
2886         // Must drop the Fcb Resource.  When changing the file size
2887         // a deadlock can occur with Trend Micro's filter if the file
2888         // size is set to zero.
2889         //
2890
2891         AFSReleaseResource( &pFcb->NPFcb->Resource);
2892
2893         bTellCc = pBuffer->AllocationSize.QuadPart > pFcb->Header.AllocationSize.QuadPart;
2894
2895         pFcb->Header.AllocationSize = pBuffer->AllocationSize;
2896
2897         pFcb->ObjectInformation->AllocationSize = pBuffer->AllocationSize;
2898     }
2899
2900     //
2901     // Now Tell the server if we have to
2902     //
2903     if (bTellService)
2904     {
2905         ntStatus = AFSUpdateFileInformation( &pFcb->ObjectInformation->ParentObjectInformation->FileId,
2906                                              pFcb->ObjectInformation,
2907                                              &pCcb->AuthGroup);
2908     }
2909
2910     if (NT_SUCCESS(ntStatus))
2911     {
2912         //
2913         // Trim extents if we told the service - the update has done an implicit
2914         // trim at the service.
2915         //
2916         if (bTellService)
2917         {
2918             AFSTrimExtents( pFcb,
2919                             &pFcb->Header.FileSize);
2920         }
2921
2922         KeQuerySystemTime( &pFcb->ObjectInformation->ChangeTime);
2923
2924         SetFlag( pFcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_CHANGE_TIME);
2925
2926         if (bTellCc &&
2927             CcIsFileCached( pFileObject))
2928         {
2929             CcSetFileSizes( pFileObject,
2930                             (PCC_FILE_SIZES)&pFcb->Header.AllocationSize);
2931         }
2932     }
2933     else
2934     {
2935         //
2936         // Put the saved values back
2937         //
2938         pFcb->Header.ValidDataLength = liSaveVDL;
2939         pFcb->Header.FileSize = liSaveFileSize;
2940         pFcb->Header.AllocationSize = liSaveAlloc;
2941         pFcb->ObjectInformation->EndOfFile = liSaveFileSize;
2942         pFcb->ObjectInformation->AllocationSize = liSaveAlloc;
2943     }
2944
2945     if( bReleasePaging)
2946     {
2947
2948         AFSReleaseResource( &pFcb->NPFcb->PagingResource);
2949
2950         AFSAcquireExcl( &pFcb->NPFcb->Resource,
2951                         TRUE);
2952     }
2953
2954     return ntStatus;
2955 }
2956
2957 NTSTATUS
2958 AFSSetEndOfFileInfo( IN PIRP Irp,
2959                      IN AFSDirectoryCB *DirectoryCB)
2960 {
2961     NTSTATUS ntStatus = STATUS_SUCCESS;
2962     PFILE_END_OF_FILE_INFORMATION pBuffer;
2963     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
2964     PFILE_OBJECT pFileObject = pIrpSp->FileObject;
2965     LARGE_INTEGER liSaveSize;
2966     LARGE_INTEGER liSaveVDL;
2967     LARGE_INTEGER liSaveAlloc;
2968     BOOLEAN bModified = FALSE;
2969     BOOLEAN bReleasePaging = FALSE;
2970     BOOLEAN bTruncated = FALSE;
2971     AFSFcb *pFcb = NULL;
2972     AFSCcb *pCcb = NULL;
2973
2974     pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
2975
2976     pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
2977
2978     pBuffer = (PFILE_END_OF_FILE_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
2979
2980     liSaveSize = pFcb->Header.FileSize;
2981     liSaveAlloc = pFcb->Header.AllocationSize;
2982     liSaveVDL = pFcb->Header.ValidDataLength;
2983
2984     if( pFcb->Header.FileSize.QuadPart != pBuffer->EndOfFile.QuadPart &&
2985         !pIrpSp->Parameters.SetFile.AdvanceOnly)
2986     {
2987
2988         if( pBuffer->EndOfFile.QuadPart < pFcb->Header.FileSize.QuadPart)
2989         {
2990
2991             // Truncating the file
2992             if( !MmCanFileBeTruncated( pFileObject->SectionObjectPointer,
2993                                        &pBuffer->EndOfFile))
2994             {
2995
2996                 ntStatus = STATUS_USER_MAPPED_FILE;
2997             }
2998             else
2999             {
3000
3001                 //
3002                 // If this is a truncation we need to grab the paging
3003                 // IO resource.
3004                 //
3005                 AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
3006                               AFS_TRACE_LEVEL_VERBOSE,
3007                               "AFSSetAllocationInfo Acquiring Fcb PagingIo lock %08lX EXCL %08lX\n",
3008                               &pFcb->NPFcb->PagingResource,
3009                               PsGetCurrentThread());
3010
3011                 AFSAcquireExcl( &pFcb->NPFcb->PagingResource,
3012                                 TRUE);
3013
3014                 bReleasePaging = TRUE;
3015
3016                 //
3017                 // Must drop the Fcb Resource.  When changing the file size
3018                 // a deadlock can occur with Trend Micro's filter if the file
3019                 // size is set to zero.
3020                 //
3021
3022                 AFSReleaseResource( &pFcb->NPFcb->Resource);
3023
3024                 pFcb->Header.AllocationSize = pBuffer->EndOfFile;
3025
3026                 pFcb->Header.FileSize = pBuffer->EndOfFile;
3027
3028                 pFcb->ObjectInformation->EndOfFile = pBuffer->EndOfFile;
3029
3030                 pFcb->ObjectInformation->AllocationSize = pBuffer->EndOfFile;
3031
3032                 if( pFcb->Header.ValidDataLength.QuadPart > pFcb->Header.FileSize.QuadPart)
3033                 {
3034
3035                     pFcb->Header.ValidDataLength = pFcb->Header.FileSize;
3036                 }
3037
3038                 bTruncated = TRUE;
3039
3040                 bModified = TRUE;
3041             }
3042         }
3043         else
3044         {
3045
3046             //
3047             // extending the file, move EOF
3048             //
3049
3050             //
3051             // If this is a truncation we need to grab the paging
3052             // IO resource.
3053             //
3054             AFSDbgLogMsg( AFS_SUBSYSTEM_LOCK_PROCESSING,
3055                           AFS_TRACE_LEVEL_VERBOSE,
3056                           "AFSSetAllocationInfo Acquiring Fcb PagingIo lock %08lX EXCL %08lX\n",
3057                           &pFcb->NPFcb->PagingResource,
3058                           PsGetCurrentThread());
3059
3060             AFSAcquireExcl( &pFcb->NPFcb->PagingResource,
3061                             TRUE);
3062
3063             bReleasePaging = TRUE;
3064
3065             //
3066             // Must drop the Fcb Resource.  When changing the file size
3067             // a deadlock can occur with Trend Micro's filter if the file
3068             // size is set to zero.
3069             //
3070
3071             AFSReleaseResource( &pFcb->NPFcb->Resource);
3072
3073             pFcb->Header.FileSize = pBuffer->EndOfFile;
3074
3075             pFcb->ObjectInformation->EndOfFile = pBuffer->EndOfFile;
3076
3077             if (pFcb->Header.FileSize.QuadPart > pFcb->Header.AllocationSize.QuadPart)
3078             {
3079                 //
3080                 // And Allocation as needed.
3081                 //
3082                 pFcb->Header.AllocationSize = pBuffer->EndOfFile;
3083
3084                 pFcb->ObjectInformation->AllocationSize = pBuffer->EndOfFile;
3085             }
3086
3087             bModified = TRUE;
3088         }
3089     }
3090
3091     if (bModified)
3092     {
3093
3094         KeQuerySystemTime( &pFcb->ObjectInformation->ChangeTime);
3095
3096         SetFlag( pFcb->Flags, AFS_FCB_FLAG_FILE_MODIFIED | AFS_FCB_FLAG_UPDATE_CHANGE_TIME);
3097
3098         //
3099         // Tell the server
3100         //
3101
3102         ntStatus = AFSUpdateFileInformation( &pFcb->ObjectInformation->ParentObjectInformation->FileId,
3103                                              pFcb->ObjectInformation,
3104                                              &pCcb->AuthGroup);
3105
3106         if( NT_SUCCESS(ntStatus))
3107         {
3108             //
3109             // We are now good to go so tell CC.
3110             //
3111             CcSetFileSizes( pFileObject,
3112                             (PCC_FILE_SIZES)&pFcb->Header.AllocationSize);
3113
3114             //
3115             // And give up those extents
3116             //
3117             if( bTruncated)
3118             {
3119
3120                 AFSTrimExtents( pFcb,
3121                                 &pFcb->Header.FileSize);
3122             }
3123         }
3124         else
3125         {
3126             pFcb->Header.ValidDataLength = liSaveVDL;
3127             pFcb->Header.FileSize = liSaveSize;
3128             pFcb->Header.AllocationSize = liSaveAlloc;
3129             pFcb->ObjectInformation->EndOfFile = liSaveSize;
3130             pFcb->ObjectInformation->AllocationSize = liSaveAlloc;
3131         }
3132     }
3133
3134     if( bReleasePaging)
3135     {
3136
3137         AFSReleaseResource( &pFcb->NPFcb->PagingResource);
3138
3139         AFSAcquireExcl( &pFcb->NPFcb->Resource,
3140                         TRUE);
3141     }
3142
3143     return ntStatus;
3144 }
3145
3146 NTSTATUS
3147 AFSProcessShareSetInfo( IN IRP *Irp,
3148                         IN AFSFcb *Fcb,
3149                         IN AFSCcb *Ccb)
3150 {
3151
3152     NTSTATUS ntStatus = STATUS_SUCCESS;
3153     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
3154     ULONG ulOutputBufferLen = 0, ulInputBufferLen;
3155     FILE_INFORMATION_CLASS ulFileInformationClass;
3156     void *pPipeInfo = NULL;
3157
3158     __Enter
3159     {
3160         ulFileInformationClass = pIrpSp->Parameters.SetFile.FileInformationClass;
3161
3162         AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3163                       AFS_TRACE_LEVEL_VERBOSE,
3164                       "AFSProcessShareSetInfo On pipe %wZ Class %08lX\n",
3165                       &Ccb->DirectoryCB->NameInformation.FileName,
3166                       ulFileInformationClass);
3167
3168         pPipeInfo = AFSLockSystemBuffer( Irp,
3169                                          pIrpSp->Parameters.SetFile.Length);
3170
3171         if( pPipeInfo == NULL)
3172         {
3173
3174             AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3175                           AFS_TRACE_LEVEL_ERROR,
3176                           "AFSProcessShareSetInfo Failed to lock buffer on pipe %wZ\n",
3177                           &Ccb->DirectoryCB->NameInformation.FileName);
3178
3179             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
3180         }
3181
3182         //
3183         // Send the request to the service
3184         //
3185
3186         ntStatus = AFSNotifySetPipeInfo( Ccb,
3187                                          (ULONG)ulFileInformationClass,
3188                                          pIrpSp->Parameters.SetFile.Length,
3189                                          pPipeInfo);
3190
3191         if( !NT_SUCCESS( ntStatus))
3192         {
3193
3194             AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3195                           AFS_TRACE_LEVEL_ERROR,
3196                           "AFSProcessShareSetInfo Failed to send request to service on pipe %wZ Status %08lX\n",
3197                           &Ccb->DirectoryCB->NameInformation.FileName,
3198                           ntStatus);
3199
3200             try_return( ntStatus);
3201         }
3202
3203         AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3204                       AFS_TRACE_LEVEL_VERBOSE,
3205                       "AFSProcessShareSetInfo Completed request on pipe %wZ Class %08lX\n",
3206                       &Ccb->DirectoryCB->NameInformation.FileName,
3207                       ulFileInformationClass);
3208
3209 try_exit:
3210
3211         NOTHING;
3212     }
3213
3214     return ntStatus;
3215 }
3216
3217 NTSTATUS
3218 AFSProcessShareQueryInfo( IN IRP *Irp,
3219                           IN AFSFcb *Fcb,
3220                           IN AFSCcb *Ccb)
3221 {
3222
3223     NTSTATUS ntStatus = STATUS_SUCCESS;
3224     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
3225     ULONG ulOutputBufferLen = 0, ulInputBufferLen;
3226     FILE_INFORMATION_CLASS ulFileInformationClass;
3227     void *pPipeInfo = NULL;
3228
3229     __Enter
3230     {
3231
3232         ulFileInformationClass = pIrpSp->Parameters.QueryFile.FileInformationClass;
3233
3234         AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3235                       AFS_TRACE_LEVEL_VERBOSE,
3236                       "AFSProcessShareQueryInfo On pipe %wZ Class %08lX\n",
3237                       &Ccb->DirectoryCB->NameInformation.FileName,
3238                       ulFileInformationClass);
3239
3240         pPipeInfo = AFSLockSystemBuffer( Irp,
3241                                          pIrpSp->Parameters.QueryFile.Length);
3242
3243         if( pPipeInfo == NULL)
3244         {
3245
3246             AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3247                           AFS_TRACE_LEVEL_ERROR,
3248                           "AFSProcessShareQueryInfo Failed to lock buffer on pipe %wZ\n",
3249                           &Ccb->DirectoryCB->NameInformation.FileName);
3250
3251             try_return( ntStatus = STATUS_INSUFFICIENT_RESOURCES);
3252         }
3253
3254         //
3255         // Send the request to the service
3256         //
3257
3258         ntStatus = AFSNotifyQueryPipeInfo( Ccb,
3259                                            (ULONG)ulFileInformationClass,
3260                                            pIrpSp->Parameters.QueryFile.Length,
3261                                            pPipeInfo,
3262                                            (ULONG *)&Irp->IoStatus.Information);
3263
3264         if( !NT_SUCCESS( ntStatus))
3265         {
3266
3267             AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3268                           AFS_TRACE_LEVEL_ERROR,
3269                           "AFSProcessShareQueryInfo Failed to send request to service on pipe %wZ Status %08lX\n",
3270                           &Ccb->DirectoryCB->NameInformation.FileName,
3271                           ntStatus);
3272
3273             try_return( ntStatus);
3274         }
3275
3276         AFSDbgLogMsg( AFS_SUBSYSTEM_PIPE_PROCESSING,
3277                       AFS_TRACE_LEVEL_VERBOSE,
3278                       "AFSProcessShareQueryInfo Completed request on pipe %wZ Class %08lX\n",
3279                       &Ccb->DirectoryCB->NameInformation.FileName,
3280                       ulFileInformationClass);
3281
3282 try_exit:
3283
3284         NOTHING;
3285     }
3286
3287     return ntStatus;
3288 }
3289
3290 NTSTATUS
3291 AFSProcessPIOCtlQueryInfo( IN IRP *Irp,
3292                            IN AFSFcb *Fcb,
3293                            IN AFSCcb *Ccb,
3294                            IN OUT LONG *Length)
3295 {
3296
3297     NTSTATUS ntStatus = STATUS_SUCCESS;
3298     PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation( Irp);
3299     FILE_INFORMATION_CLASS ulFileInformationClass;
3300
3301     __Enter
3302     {
3303
3304         ulFileInformationClass = pIrpSp->Parameters.QueryFile.FileInformationClass;
3305
3306         switch( ulFileInformationClass)
3307         {
3308
3309             case FileBasicInformation:
3310             {
3311
3312                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3313                               AFS_TRACE_LEVEL_VERBOSE,
3314                               "AFSProcessPIOCtlQueryInfo (FileBasicInformation)\n");
3315
3316                 if ( *Length >= sizeof( FILE_BASIC_INFORMATION))
3317                 {
3318                     PFILE_BASIC_INFORMATION pBasic = (PFILE_BASIC_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
3319
3320                     pBasic->CreationTime.QuadPart = 0;
3321                     pBasic->LastAccessTime.QuadPart = 0;
3322                     pBasic->ChangeTime.QuadPart = 0;
3323                     pBasic->LastWriteTime.QuadPart = 0;
3324                     pBasic->FileAttributes = FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
3325
3326                     *Length -= sizeof( FILE_BASIC_INFORMATION);
3327                 }
3328                 else
3329                 {
3330                     ntStatus = STATUS_BUFFER_TOO_SMALL;
3331                 }
3332
3333                 break;
3334             }
3335
3336             case FileStandardInformation:
3337             {
3338
3339                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3340                               AFS_TRACE_LEVEL_VERBOSE,
3341                               "AFSProcessPIOCtlQueryInfo (FileStandardInformation)\n");
3342
3343                 if ( *Length >= sizeof( FILE_STANDARD_INFORMATION))
3344                 {
3345                     PFILE_STANDARD_INFORMATION pStandard = (PFILE_STANDARD_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
3346
3347                     pStandard->NumberOfLinks = 1;
3348                     pStandard->DeletePending = 0;
3349                     pStandard->AllocationSize.QuadPart = 0;
3350                     pStandard->EndOfFile.QuadPart = 0;
3351                     pStandard->Directory = 0;
3352
3353                     *Length -= sizeof( FILE_STANDARD_INFORMATION);
3354                 }
3355                 else
3356                 {
3357                     ntStatus = STATUS_BUFFER_TOO_SMALL;
3358                 }
3359
3360                 break;
3361             }
3362
3363             case FileNormalizedNameInformation:
3364             case FileNameInformation:
3365             {
3366
3367                 ULONG ulCopyLength = 0;
3368                 AFSFcb *pFcb = NULL;
3369                 AFSCcb *pCcb = NULL;
3370                 USHORT usFullNameLength = 0;
3371                 PFILE_NAME_INFORMATION pNameInfo = (PFILE_NAME_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
3372                 UNICODE_STRING uniName;
3373
3374                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3375                               AFS_TRACE_LEVEL_VERBOSE,
3376                               "AFSProcessPIOCtlQueryInfo (FileNameInformation)\n");
3377
3378                 pFcb = (AFSFcb *)pIrpSp->FileObject->FsContext;
3379                 pCcb = (AFSCcb *)pIrpSp->FileObject->FsContext2;
3380
3381                 if( *Length < FIELD_OFFSET( FILE_NAME_INFORMATION, FileName))
3382                 {
3383                     ntStatus = STATUS_BUFFER_TOO_SMALL;
3384                     break;
3385                 }
3386
3387                 RtlZeroMemory( pNameInfo,
3388                                *Length);
3389
3390                 usFullNameLength = sizeof( WCHAR) +
3391                                             AFSServerName.Length +
3392                                             pCcb->FullFileName.Length;
3393
3394                 if( *Length >= (LONG)(FIELD_OFFSET( FILE_NAME_INFORMATION, FileName) + (LONG)usFullNameLength))
3395                 {
3396                     ulCopyLength = (LONG)usFullNameLength;
3397                 }
3398                 else
3399                 {
3400                     ulCopyLength = *Length - FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
3401                     ntStatus = STATUS_BUFFER_OVERFLOW;
3402                 }
3403
3404                 pNameInfo->FileNameLength = (ULONG)usFullNameLength;
3405
3406                 *Length -= FIELD_OFFSET( FILE_NAME_INFORMATION, FileName);
3407
3408                 if( ulCopyLength > 0)
3409                 {
3410
3411                     pNameInfo->FileName[ 0] = L'\\';
3412                     ulCopyLength -= sizeof( WCHAR);
3413
3414                     *Length -= sizeof( WCHAR);
3415
3416                     if( ulCopyLength >= AFSServerName.Length)
3417                     {
3418
3419                         RtlCopyMemory( &pNameInfo->FileName[ 1],
3420                                        AFSServerName.Buffer,
3421                                        AFSServerName.Length);
3422
3423                         ulCopyLength -= AFSServerName.Length;
3424                         *Length -= AFSServerName.Length;
3425
3426                         if( ulCopyLength >= pCcb->FullFileName.Length)
3427                         {
3428
3429                             RtlCopyMemory( &pNameInfo->FileName[ 1 + (AFSServerName.Length/sizeof( WCHAR))],
3430                                            pCcb->FullFileName.Buffer,
3431                                            pCcb->FullFileName.Length);
3432
3433                             ulCopyLength -= pCcb->FullFileName.Length;
3434                             *Length -= pCcb->FullFileName.Length;
3435
3436                             uniName.Length = (USHORT)pNameInfo->FileNameLength;
3437                             uniName.MaximumLength = uniName.Length;
3438                             uniName.Buffer = pNameInfo->FileName;
3439                         }
3440                         else
3441                         {
3442
3443                             RtlCopyMemory( &pNameInfo->FileName[ 1 + (AFSServerName.Length/sizeof( WCHAR))],
3444                                            pCcb->FullFileName.Buffer,
3445                                            ulCopyLength);
3446
3447                             *Length -= ulCopyLength;
3448
3449                             uniName.Length = (USHORT)(sizeof( WCHAR) + AFSServerName.Length + ulCopyLength);
3450                             uniName.MaximumLength = uniName.Length;
3451                             uniName.Buffer = pNameInfo->FileName;
3452                         }
3453
3454                         AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3455                                       AFS_TRACE_LEVEL_VERBOSE,
3456                                       "AFSProcessPIOCtlQueryInfo (FileNameInformation) Returning %wZ\n",
3457                                       &uniName);
3458                     }
3459                 }
3460
3461                 break;
3462             }
3463
3464             case FileInternalInformation:
3465             {
3466
3467                 PFILE_INTERNAL_INFORMATION pInternalInfo = (PFILE_INTERNAL_INFORMATION)Irp->AssociatedIrp.SystemBuffer;
3468
3469                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3470                               AFS_TRACE_LEVEL_VERBOSE,
3471                               "AFSProcessPIOCtlQueryInfo (FileInternalInformation)\n");
3472
3473                 if( *Length >= sizeof( FILE_INTERNAL_INFORMATION))
3474                 {
3475
3476                     pInternalInfo->IndexNumber.HighPart = 0;
3477
3478                     pInternalInfo->IndexNumber.LowPart = 0;
3479
3480                     *Length -= sizeof( FILE_INTERNAL_INFORMATION);
3481                 }
3482                 else
3483                 {
3484
3485                     ntStatus = STATUS_BUFFER_TOO_SMALL;
3486                 }
3487
3488                 break;
3489             }
3490
3491             case FileAllInformation:
3492             {
3493                 ntStatus = STATUS_INVALID_PARAMETER;
3494
3495                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3496                               AFS_TRACE_LEVEL_WARNING,
3497                               "AFSProcessPIOCtlQueryInfo (FileAllInformation) Not Implemented\n");
3498
3499                 break;
3500             }
3501
3502             case FileEaInformation:
3503             {
3504                 ntStatus = STATUS_INVALID_PARAMETER;
3505
3506                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3507                               AFS_TRACE_LEVEL_WARNING,
3508                               "AFSProcessPIOCtlQueryInfo (FileEaInformation) Not Implemented\n");
3509
3510                 break;
3511             }
3512
3513             case FilePositionInformation:
3514             {
3515                 ntStatus = STATUS_INVALID_PARAMETER;
3516
3517                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3518                               AFS_TRACE_LEVEL_WARNING,
3519                               "AFSProcessPIOCtlQueryInfo (FilePositionInformation) Not Implemented\n");
3520
3521                 break;
3522             }
3523
3524             case FileAlternateNameInformation:
3525             {
3526                 ntStatus = STATUS_INVALID_PARAMETER;
3527
3528                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3529                               AFS_TRACE_LEVEL_WARNING,
3530                               "AFSProcessPIOCtlQueryInfo (FileAlternateNameInformation) Not Implemented\n");
3531
3532                 break;
3533             }
3534
3535             case FileNetworkOpenInformation:
3536             {
3537                 ntStatus = STATUS_INVALID_PARAMETER;
3538
3539                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3540                               AFS_TRACE_LEVEL_WARNING,
3541                               "AFSProcessPIOCtlQueryInfo (FileNetworkOpenInformation) Not Implemented\n");
3542
3543                 break;
3544             }
3545
3546             case FileStreamInformation:
3547             {
3548                 ntStatus = STATUS_INVALID_PARAMETER;
3549
3550                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3551                               AFS_TRACE_LEVEL_WARNING,
3552                               "AFSProcessPIOCtlQueryInfo (FileStreamInformation) Not Implemented\n");
3553
3554                 break;
3555             }
3556
3557             case FileAttributeTagInformation:
3558             {
3559                 ntStatus = STATUS_INVALID_PARAMETER;
3560
3561                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3562                               AFS_TRACE_LEVEL_WARNING,
3563                               "AFSProcessPIOCtlQueryInfo (FileAttributeTagInformation) Not Implemented\n");
3564
3565                 break;
3566             }
3567
3568             case FileRemoteProtocolInformation:
3569             {
3570                 ntStatus = STATUS_INVALID_PARAMETER;
3571
3572                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3573                               AFS_TRACE_LEVEL_WARNING,
3574                               "AFSProcessPIOCtlQueryInfo (FileRemoteProtocolInformation) Not Implemented\n");
3575
3576                 break;
3577             }
3578
3579             case FileNetworkPhysicalNameInformation:
3580             {
3581                 ntStatus = STATUS_INVALID_PARAMETER;
3582
3583                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3584                               AFS_TRACE_LEVEL_WARNING,
3585                               "AFSProcessPIOCtlQueryInfo (FileNetworkPhysicalNameInformation) Not Implemented\n");
3586
3587                 break;
3588             }
3589
3590             default:
3591             {
3592                 ntStatus = STATUS_INVALID_PARAMETER;
3593
3594                 AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3595                               AFS_TRACE_LEVEL_WARNING,
3596                               "AFSProcessPIOCtlQueryInfo Not handling request %08lX\n",
3597                               ulFileInformationClass);
3598
3599                 break;
3600             }
3601         }
3602     }
3603
3604     AFSDbgLogMsg( AFS_SUBSYSTEM_PIOCTL_PROCESSING,
3605                   AFS_TRACE_LEVEL_VERBOSE,
3606                   "AFSProcessPIOCtlQueryInfo ntStatus %08lX\n",
3607                   ntStatus);
3608
3609     return ntStatus;
3610 }
3611