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