subsystems/win/basesrv/vdm.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS Base API Server DLL
   4  * FILE:            subsystems/win/basesrv/vdm.c
   5  * PURPOSE:         Virtual DOS Machines (VDM) Support
   6  * PROGRAMMERS:     Hermes Belusca-Maito (hermes.belusca@sfr.fr)
   7  *                  Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
   8  */
   9
  10 /* INCLUDES *******************************************************************/
  11
  12 #include "basesrv.h"
  13 #include "vdm.h"
  14
  15 #define NDEBUG
  16 #include <debug.h>
  17
  18 /* GLOBALS ********************************************************************/
  19
  20 BOOLEAN FirstVDM = TRUE;
  21 LIST_ENTRY VDMConsoleListHead;
  22 RTL_CRITICAL_SECTION DosCriticalSection;
  23 RTL_CRITICAL_SECTION WowCriticalSection;
  24
  25 /* FUNCTIONS ******************************************************************/
  26
  27 NTSTATUS NTAPI BaseSrvGetConsoleRecord(HANDLE ConsoleHandle, PVDM_CONSOLE_RECORD *Record)
  28 {
  29     PLIST_ENTRY i;
  30     PVDM_CONSOLE_RECORD CurrentRecord = NULL;
  31
  32     /* Search for a record that has the same console handle */
  33     for (i = VDMConsoleListHead.Flink; i != &VDMConsoleListHead; i = i->Flink)
  34     {
  35         CurrentRecord = CONTAINING_RECORD(i, VDM_CONSOLE_RECORD, Entry);
  36         if (CurrentRecord->ConsoleHandle == ConsoleHandle) break;
  37     }
  38
  39     *Record = CurrentRecord;
  40     return CurrentRecord ? STATUS_SUCCESS : STATUS_NOT_FOUND;
  41 }
  42
  43 NTSTATUS NTAPI GetConsoleRecordBySessionId(ULONG TaskId, PVDM_CONSOLE_RECORD *Record)
  44 {
  45     PLIST_ENTRY i;
  46     PVDM_CONSOLE_RECORD CurrentRecord = NULL;
  47
  48     /* Search for a record that has the same console handle */
  49     for (i = VDMConsoleListHead.Flink; i != &VDMConsoleListHead; i = i->Flink)
  50     {
  51         CurrentRecord = CONTAINING_RECORD(i, VDM_CONSOLE_RECORD, Entry);
  52         if (CurrentRecord->SessionId == TaskId) break;
  53     }
  54
  55     *Record = CurrentRecord;
  56     return CurrentRecord ? STATUS_SUCCESS : STATUS_NOT_FOUND;
  57 }
  58
  59 ULONG NTAPI GetNextDosSesId(VOID)
  60 {
  61     ULONG SessionId;
  62     PLIST_ENTRY i;
  63     PVDM_CONSOLE_RECORD CurrentRecord = NULL;
  64     BOOLEAN Found;
  65
  66     /* Search for an available session ID */
  67     for (SessionId = 1; SessionId != 0; SessionId++)
  68     {
  69         Found = FALSE;
  70
  71         /* Check if the ID is already in use */
  72         for (i = VDMConsoleListHead.Flink; i != &VDMConsoleListHead; i = i->Flink)
  73         {
  74             CurrentRecord = CONTAINING_RECORD(i, VDM_CONSOLE_RECORD, Entry);
  75             if (CurrentRecord->SessionId == SessionId) Found = TRUE;
  76         }
  77
  78         /* If not, we found one */
  79         if (!Found) break;
  80     }
  81
  82     ASSERT(SessionId != 0);
  83
  84     /* Return the session ID */
  85     return SessionId;
  86 }
  87
  88 BOOLEAN NTAPI BaseSrvIsVdmAllowed(VOID)
  89 {
  90     NTSTATUS Status;
  91     BOOLEAN VdmAllowed = TRUE;
  92     HANDLE RootKey, KeyHandle;
  93     UNICODE_STRING KeyName, ValueName, MachineKeyName;
  94     OBJECT_ATTRIBUTES Attributes;
  95     UCHAR ValueBuffer[sizeof(KEY_VALUE_PARTIAL_INFORMATION) + sizeof(ULONG)];
  96     PKEY_VALUE_PARTIAL_INFORMATION ValueInfo = (PKEY_VALUE_PARTIAL_INFORMATION)ValueBuffer;
  97     ULONG ActualSize;
  98
  99     /* Initialize the unicode strings */
 100     RtlInitUnicodeString(&MachineKeyName, L"\\Registry\\Machine");
 101     RtlInitUnicodeString(&KeyName, VDM_POLICY_KEY_NAME);
 102     RtlInitUnicodeString(&ValueName, VDM_DISALLOWED_VALUE_NAME);
 103
 104     InitializeObjectAttributes(&Attributes,
 105                                &MachineKeyName,
 106                                OBJ_CASE_INSENSITIVE,
 107                                NULL,
 108                                NULL);
 109
 110     /* Open the local machine key */
 111     Status = NtOpenKey(&RootKey, KEY_READ, &Attributes);
 112     if (!NT_SUCCESS(Status)) return FALSE;
 113
 114     InitializeObjectAttributes(&Attributes,
 115                                &KeyName,
 116                                OBJ_CASE_INSENSITIVE,
 117                                RootKey,
 118                                NULL);
 119
 120     /* Open the policy key in the local machine hive, if it exists */
 121     if (NT_SUCCESS(NtOpenKey(&KeyHandle, KEY_READ, &Attributes)))
 122     {
 123         /* Read the value, if it's set */
 124         if (NT_SUCCESS(NtQueryValueKey(KeyHandle,
 125                                        &ValueName,
 126                                        KeyValuePartialInformation,
 127                                        ValueInfo,
 128                                        sizeof(ValueBuffer),
 129                                        &ActualSize)))
 130         {
 131             if (*((PULONG)ValueInfo->Data))
 132             {
 133                 /* The VDM has been disabled in the registry */
 134                 VdmAllowed = FALSE;
 135             }
 136         }
 137
 138         NtClose(KeyHandle);
 139     }
 140
 141     /* Close the local machine key */
 142     NtClose(RootKey);
 143
 144     /* If it's disabled system-wide, there's no need to check the user key */
 145     if (!VdmAllowed) return FALSE;
 146
 147     /* Open the current user key of the client */
 148     if (!CsrImpersonateClient(NULL)) return VdmAllowed;
 149     Status = RtlOpenCurrentUser(KEY_READ, &RootKey);
 150     CsrRevertToSelf();
 151
 152     /* If that fails, return the system-wide setting */
 153     if (!NT_SUCCESS(Status)) return VdmAllowed;
 154
 155     InitializeObjectAttributes(&Attributes,
 156                                &KeyName,
 157                                OBJ_CASE_INSENSITIVE,
 158                                RootKey,
 159                                NULL);
 160
 161     /* Open the policy key in the current user hive, if it exists */
 162     if (NT_SUCCESS(NtOpenKey(&KeyHandle, KEY_READ, &Attributes)))
 163     {
 164         /* Read the value, if it's set */
 165         if (NT_SUCCESS(NtQueryValueKey(KeyHandle,
 166                                        &ValueName,
 167                                        KeyValuePartialInformation,
 168                                        ValueInfo,
 169                                        sizeof(ValueBuffer),
 170                                        &ActualSize)))
 171         {
 172             if (*((PULONG)ValueInfo->Data))
 173             {
 174                 /* The VDM has been disabled in the registry */
 175                 VdmAllowed = FALSE;
 176             }
 177         }
 178
 179         NtClose(KeyHandle);
 180     }
 181
 182     return VdmAllowed;
 183 }
 184
 185 NTSTATUS NTAPI BaseSrvCreatePairWaitHandles(PHANDLE ServerEvent, PHANDLE ClientEvent)
 186 {
 187     NTSTATUS Status;
 188
 189     /* Create the event */
 190     Status = NtCreateEvent(ServerEvent, EVENT_ALL_ACCESS, NULL, NotificationEvent, FALSE);
 191     if (!NT_SUCCESS(Status)) return Status;
 192
 193     /* Duplicate the event into the client process */
 194     Status = NtDuplicateObject(NtCurrentProcess(),
 195                                *ServerEvent,
 196                                CsrGetClientThread()->Process->ProcessHandle,
 197                                ClientEvent,
 198                                0,
 199                                0,
 200                                DUPLICATE_SAME_ATTRIBUTES | DUPLICATE_SAME_ACCESS);
 201
 202     if (!NT_SUCCESS(Status)) NtClose(*ServerEvent);
 203     return Status;
 204 }
 205
 206 VOID BaseSrvFreeVDMInfo(PVDM_COMMAND_INFO CommandInfo)
 207 {
 208     /* Free the allocated structure members */
 209     if (CommandInfo->CmdLine != NULL) RtlFreeHeap(BaseSrvHeap, 0, CommandInfo->CmdLine);
 210     if (CommandInfo->AppName != NULL) RtlFreeHeap(BaseSrvHeap, 0, CommandInfo->AppName);
 211     if (CommandInfo->PifFile != NULL) RtlFreeHeap(BaseSrvHeap, 0, CommandInfo->PifFile);
 212     if (CommandInfo->CurDirectory != NULL) RtlFreeHeap(BaseSrvHeap, 0, CommandInfo->CurDirectory);
 213     if (CommandInfo->Env != NULL) RtlFreeHeap(BaseSrvHeap, 0, CommandInfo->Env);
 214     if (CommandInfo->Desktop != NULL) RtlFreeHeap(BaseSrvHeap, 0, CommandInfo->Desktop);
 215     if (CommandInfo->Title != NULL) RtlFreeHeap(BaseSrvHeap, 0, CommandInfo->Title);
 216     if (CommandInfo->Reserved != NULL) RtlFreeHeap(BaseSrvHeap, 0, CommandInfo->Reserved);
 217
 218     /* Free the structure itself */
 219     RtlFreeHeap(BaseSrvHeap, 0, CommandInfo);
 220 }
 221
 222 BOOLEAN NTAPI BaseSrvCopyCommand(PBASE_CHECK_VDM CheckVdmRequest, PVDM_DOS_RECORD DosRecord)
 223 {
 224     BOOLEAN Success = FALSE;
 225     PVDM_COMMAND_INFO CommandInfo = NULL;
 226
 227     /* Allocate the command information structure */
 228     CommandInfo = (PVDM_COMMAND_INFO)RtlAllocateHeap(BaseSrvHeap,
 229                                                      HEAP_ZERO_MEMORY,
 230                                                      sizeof(VDM_COMMAND_INFO));
 231     if (CommandInfo == NULL) return FALSE;
 232
 233     /* Fill the structure */
 234     CommandInfo->TaskId = CheckVdmRequest->iTask;
 235     CommandInfo->ExitCode = DosRecord->ExitCode;
 236     CommandInfo->CodePage = CheckVdmRequest->CodePage;
 237     CommandInfo->StdIn = CheckVdmRequest->StdIn;
 238     CommandInfo->StdOut = CheckVdmRequest->StdOut;
 239     CommandInfo->StdErr = CheckVdmRequest->StdErr;
 240
 241     /* Allocate memory for the command line */
 242     CommandInfo->CmdLine = RtlAllocateHeap(BaseSrvHeap,
 243                                            HEAP_ZERO_MEMORY,
 244                                            CheckVdmRequest->CmdLen);
 245     if (CommandInfo->CmdLine == NULL) goto Cleanup;
 246
 247     /* Copy the command line */
 248     RtlMoveMemory(CommandInfo->CmdLine, CheckVdmRequest->CmdLine, CheckVdmRequest->CmdLen);
 249
 250     /* Allocate memory for the application name */
 251     CommandInfo->AppName = RtlAllocateHeap(BaseSrvHeap,
 252                                            HEAP_ZERO_MEMORY,
 253                                            CheckVdmRequest->AppLen);
 254     if (CommandInfo->AppName == NULL) goto Cleanup;
 255
 256     /* Copy the application name */
 257     RtlMoveMemory(CommandInfo->AppName, CheckVdmRequest->AppName, CheckVdmRequest->AppLen);
 258
 259     /* Allocate memory for the PIF file name */
 260     if (CheckVdmRequest->PifLen != 0)
 261     {
 262         CommandInfo->PifFile = RtlAllocateHeap(BaseSrvHeap,
 263                                                HEAP_ZERO_MEMORY,
 264                                                CheckVdmRequest->PifLen);
 265         if (CommandInfo->PifFile == NULL) goto Cleanup;
 266
 267         /* Copy the PIF file name */
 268         RtlMoveMemory(CommandInfo->PifFile, CheckVdmRequest->PifFile, CheckVdmRequest->PifLen);
 269     }
 270     else CommandInfo->PifFile = NULL;
 271
 272     /* Allocate memory for the current directory */
 273     if (CheckVdmRequest->CurDirectoryLen != 0)
 274     {
 275         CommandInfo->CurDirectory = RtlAllocateHeap(BaseSrvHeap,
 276                                                     HEAP_ZERO_MEMORY,
 277                                                     CheckVdmRequest->CurDirectoryLen);
 278         if (CommandInfo->CurDirectory == NULL) goto Cleanup;
 279
 280         /* Copy the current directory */
 281         RtlMoveMemory(CommandInfo->CurDirectory,
 282                       CheckVdmRequest->CurDirectory,
 283                       CheckVdmRequest->CurDirectoryLen);
 284     }
 285     else CommandInfo->CurDirectory = NULL;
 286
 287     /* Allocate memory for the environment block */
 288     CommandInfo->Env = RtlAllocateHeap(BaseSrvHeap,
 289                                        HEAP_ZERO_MEMORY,
 290                                        CheckVdmRequest->EnvLen);
 291     if (CommandInfo->Env == NULL) goto Cleanup;
 292
 293     /* Copy the environment block */
 294     RtlMoveMemory(CommandInfo->Env, CheckVdmRequest->Env, CheckVdmRequest->EnvLen);
 295
 296     CommandInfo->EnvLen = CheckVdmRequest->EnvLen;
 297     RtlMoveMemory(&CommandInfo->StartupInfo,
 298                   CheckVdmRequest->StartupInfo,
 299                   sizeof(STARTUPINFOA));
 300
 301     /* Allocate memory for the desktop */
 302     if (CheckVdmRequest->DesktopLen != 0)
 303     {
 304         CommandInfo->Desktop = RtlAllocateHeap(BaseSrvHeap,
 305                                                HEAP_ZERO_MEMORY,
 306                                                CheckVdmRequest->DesktopLen);
 307         if (CommandInfo->Desktop == NULL) goto Cleanup;
 308
 309         /* Copy the desktop name */
 310         RtlMoveMemory(CommandInfo->Desktop, CheckVdmRequest->Desktop, CheckVdmRequest->DesktopLen);
 311     }
 312     else CommandInfo->Desktop = NULL;
 313
 314     CommandInfo->DesktopLen = CheckVdmRequest->DesktopLen;
 315
 316     /* Allocate memory for the title */
 317     if (CheckVdmRequest->TitleLen != 0)
 318     {
 319         CommandInfo->Title = RtlAllocateHeap(BaseSrvHeap,
 320                                              HEAP_ZERO_MEMORY,
 321                                              CheckVdmRequest->TitleLen);
 322         if (CommandInfo->Title == NULL) goto Cleanup;
 323
 324         /* Copy the title */
 325         RtlMoveMemory(CommandInfo->Title, CheckVdmRequest->Title, CheckVdmRequest->TitleLen);
 326     }
 327     else CommandInfo->Title = NULL;
 328
 329     CommandInfo->TitleLen = CheckVdmRequest->TitleLen;
 330
 331     /* Allocate memory for the reserved field */
 332     if (CheckVdmRequest->ReservedLen != 0)
 333     {
 334         CommandInfo->Reserved = RtlAllocateHeap(BaseSrvHeap,
 335                                                 HEAP_ZERO_MEMORY,
 336                                                 CheckVdmRequest->ReservedLen);
 337         if (CommandInfo->Reserved == NULL) goto Cleanup;
 338
 339         /* Copy the reserved field */
 340         RtlMoveMemory(CommandInfo->Reserved,
 341                       CheckVdmRequest->Reserved,
 342                       CheckVdmRequest->ReservedLen);
 343     }
 344     else CommandInfo->Reserved = NULL;
 345
 346     CommandInfo->ReservedLen = CheckVdmRequest->ReservedLen;
 347
 348     CommandInfo->CmdLen = CheckVdmRequest->CmdLen;
 349     CommandInfo->AppLen = CheckVdmRequest->AppLen;
 350     CommandInfo->PifLen = CheckVdmRequest->PifLen;
 351     CommandInfo->CurDirectoryLen = CheckVdmRequest->CurDirectoryLen;
 352     CommandInfo->VDMState = DosRecord->State;
 353     // TODO: Set CommandInfo->CurrentDrive
 354     // TODO: Set CommandInfo->ComingFromBat
 355
 356     /* Set the DOS record's command structure */
 357     DosRecord->CommandInfo = CommandInfo;
 358
 359     /* The operation was successful */
 360     Success = TRUE;
 361
 362 Cleanup:
 363     /* If it wasn't successful, free the memory */
 364     if (!Success) BaseSrvFreeVDMInfo(CommandInfo);
 365
 366     return Success;
 367 }
 368
 369 VOID NTAPI BaseInitializeVDM(VOID)
 370 {
 371     /* Initialize the list head */
 372     InitializeListHead(&VDMConsoleListHead);
 373
 374     /* Initialize the critical section */
 375     RtlInitializeCriticalSection(&DosCriticalSection);
 376     RtlInitializeCriticalSection(&WowCriticalSection);
 377 }
 378
 379 /* PUBLIC SERVER APIS *********************************************************/
 380
 381 CSR_API(BaseSrvCheckVDM)
 382 {
 383     NTSTATUS Status;
 384     PBASE_CHECK_VDM CheckVdmRequest = &((PBASE_API_MESSAGE)ApiMessage)->Data.CheckVDMRequest;
 385     PRTL_CRITICAL_SECTION CriticalSection = NULL;
 386     PVDM_CONSOLE_RECORD ConsoleRecord = NULL;
 387     PVDM_DOS_RECORD DosRecord = NULL;
 388     BOOLEAN NewConsoleRecord = FALSE;
 389
 390     /* Don't do anything if the VDM has been disabled in the registry */
 391     if (!BaseSrvIsVdmAllowed()) return STATUS_ACCESS_DENIED;
 392
 393     /* Validate the message buffers */
 394     if (!CsrValidateMessageBuffer(ApiMessage,
 395                                   (PVOID*)&CheckVdmRequest->CmdLine,
 396                                   CheckVdmRequest->CmdLen,
 397                                   sizeof(*CheckVdmRequest->CmdLine))
 398         || !CsrValidateMessageBuffer(ApiMessage,
 399                                      (PVOID*)&CheckVdmRequest->AppName,
 400                                      CheckVdmRequest->AppLen,
 401                                      sizeof(*CheckVdmRequest->AppName))
 402         || !CsrValidateMessageBuffer(ApiMessage,
 403                                      (PVOID*)&CheckVdmRequest->PifFile,
 404                                      CheckVdmRequest->PifLen,
 405                                      sizeof(*CheckVdmRequest->PifFile))
 406         || !CsrValidateMessageBuffer(ApiMessage,
 407                                      (PVOID*)&CheckVdmRequest->CurDirectory,
 408                                      CheckVdmRequest->CurDirectoryLen,
 409                                      sizeof(*CheckVdmRequest->CurDirectory))
 410         || !CsrValidateMessageBuffer(ApiMessage,
 411                                      (PVOID*)&CheckVdmRequest->Desktop,
 412                                      CheckVdmRequest->DesktopLen,
 413                                      sizeof(*CheckVdmRequest->Desktop))
 414         || !CsrValidateMessageBuffer(ApiMessage,
 415                                      (PVOID*)&CheckVdmRequest->Title,
 416                                      CheckVdmRequest->TitleLen,
 417                                      sizeof(*CheckVdmRequest->Title))
 418         || !CsrValidateMessageBuffer(ApiMessage,
 419                                      (PVOID*)&CheckVdmRequest->Reserved,
 420                                      CheckVdmRequest->ReservedLen,
 421                                      sizeof(*CheckVdmRequest->Reserved)))
 422     {
 423         return STATUS_INVALID_PARAMETER;
 424     }
 425
 426     CriticalSection = (CheckVdmRequest->BinaryType != BINARY_TYPE_SEPARATE_WOW)
 427                       ? &DosCriticalSection
 428                       : &WowCriticalSection;
 429
 430     /* Enter the critical section */
 431     RtlEnterCriticalSection(CriticalSection);
 432
 433     /* Check if this is a DOS or WOW VDM */
 434     if (CheckVdmRequest->BinaryType != BINARY_TYPE_SEPARATE_WOW)
 435     {
 436         /* Get the console record */
 437         Status = BaseSrvGetConsoleRecord(CheckVdmRequest->ConsoleHandle,
 438                                          &ConsoleRecord);
 439
 440         if (!NT_SUCCESS(Status))
 441         {
 442             /* Allocate a new console record */
 443             ConsoleRecord = (PVDM_CONSOLE_RECORD)RtlAllocateHeap(BaseSrvHeap,
 444                                                                  HEAP_ZERO_MEMORY,
 445                                                                  sizeof(VDM_CONSOLE_RECORD));
 446             if (ConsoleRecord == NULL)
 447             {
 448                 Status = STATUS_NO_MEMORY;
 449                 goto Cleanup;
 450             }
 451
 452             /* Initialize the console record */
 453             ConsoleRecord->ConsoleHandle = CheckVdmRequest->ConsoleHandle;
 454             ConsoleRecord->CurrentDirs = NULL;
 455             ConsoleRecord->CurDirsLength = 0;
 456             ConsoleRecord->SessionId = GetNextDosSesId();
 457             InitializeListHead(&ConsoleRecord->DosListHead);
 458             // TODO: The console record structure is incomplete
 459
 460             /* Remember that the console record was allocated here */
 461             NewConsoleRecord = TRUE;
 462         }
 463
 464         /* Allocate a new DOS record */
 465         DosRecord = (PVDM_DOS_RECORD)RtlAllocateHeap(BaseSrvHeap,
 466                                                      HEAP_ZERO_MEMORY,
 467                                                      sizeof(VDM_DOS_RECORD));
 468         if (DosRecord == NULL)
 469         {
 470             Status = STATUS_NO_MEMORY;
 471             goto Cleanup;
 472         }
 473
 474         /* Initialize the DOS record */
 475         DosRecord->State = NewConsoleRecord ? VDM_NOT_LOADED : VDM_READY;
 476         DosRecord->ExitCode = 0;
 477         // TODO: The DOS record structure is incomplete
 478
 479         Status = BaseSrvCreatePairWaitHandles(&DosRecord->ServerEvent, &DosRecord->ClientEvent);
 480         if (!NT_SUCCESS(Status)) goto Cleanup;
 481
 482         /* Return the client event handle */
 483         CheckVdmRequest->WaitObjectForParent = DosRecord->ClientEvent;
 484
 485         /* Translate the input structure into a VDM command structure and set it in the DOS record */
 486         if (!BaseSrvCopyCommand(CheckVdmRequest, DosRecord))
 487         {
 488             /* The only possibility is that an allocation failure occurred */
 489             Status = STATUS_NO_MEMORY;
 490             goto Cleanup;
 491         }
 492
 493         /* Add the DOS record */
 494         InsertHeadList(&ConsoleRecord->DosListHead, &DosRecord->Entry);
 495
 496         if (NewConsoleRecord)
 497         {
 498             /* Add the console record */
 499             InsertTailList(&VDMConsoleListHead, &ConsoleRecord->Entry);
 500         }
 501
 502         CheckVdmRequest->VDMState = DosRecord->State;
 503         Status = STATUS_SUCCESS;
 504     }
 505     else
 506     {
 507         // TODO: NOT IMPLEMENTED
 508         UNIMPLEMENTED;
 509         Status = STATUS_NOT_IMPLEMENTED;
 510     }
 511
 512 Cleanup:
 513     /* Check if it failed */
 514     if (!NT_SUCCESS(Status))
 515     {
 516         /* Free the DOS record */
 517         if (DosRecord != NULL)
 518         {
 519             if (DosRecord->ServerEvent) NtClose(DosRecord->ServerEvent);
 520             if (DosRecord->ClientEvent)
 521             {
 522                 /* Close the remote handle */
 523                 NtDuplicateObject(CsrGetClientThread()->Process->ProcessHandle,
 524                                   DosRecord->ClientEvent,
 525                                   NULL,
 526                                   NULL,
 527                                   0,
 528                                   0,
 529                                   DUPLICATE_CLOSE_SOURCE);
 530             }
 531
 532             RtlFreeHeap(BaseSrvHeap, 0, DosRecord);
 533             DosRecord = NULL;
 534         }
 535
 536         /* Free the console record if it was allocated here */
 537         if (NewConsoleRecord)
 538         {
 539             RtlFreeHeap(BaseSrvHeap, 0, ConsoleRecord);
 540             ConsoleRecord = NULL;
 541         }
 542     }
 543
 544     /* Leave the critical section */
 545     RtlLeaveCriticalSection(CriticalSection);
 546
 547     return Status;
 548 }
 549
 550 CSR_API(BaseSrvUpdateVDMEntry)
 551 {
 552     NTSTATUS Status;
 553     PBASE_UPDATE_VDM_ENTRY UpdateVdmEntryRequest = &((PBASE_API_MESSAGE)ApiMessage)->Data.UpdateVDMEntryRequest;
 554     PRTL_CRITICAL_SECTION CriticalSection = NULL;
 555     PVDM_CONSOLE_RECORD ConsoleRecord = NULL;
 556     PVDM_DOS_RECORD DosRecord = NULL;
 557
 558     CriticalSection = (UpdateVdmEntryRequest->BinaryType != BINARY_TYPE_SEPARATE_WOW)
 559                       ? &DosCriticalSection
 560                       : &WowCriticalSection;
 561
 562     /* Enter the critical section */
 563     RtlEnterCriticalSection(CriticalSection);
 564
 565     /* Check if this is a DOS or WOW VDM */
 566     if (UpdateVdmEntryRequest->BinaryType != BINARY_TYPE_SEPARATE_WOW)
 567     {
 568         if (UpdateVdmEntryRequest->iTask != 0)
 569         {
 570             /* Get the console record using the task ID */
 571             Status = GetConsoleRecordBySessionId(UpdateVdmEntryRequest->iTask,
 572                                                  &ConsoleRecord);
 573         }
 574         else
 575         {
 576             /* Get the console record using the console handle */
 577             Status = BaseSrvGetConsoleRecord(UpdateVdmEntryRequest->ConsoleHandle,
 578                                              &ConsoleRecord);
 579         }
 580
 581         if (!NT_SUCCESS(Status)) goto Cleanup;
 582
 583         /* Get the primary DOS record */
 584         DosRecord = (PVDM_DOS_RECORD)CONTAINING_RECORD(ConsoleRecord->DosListHead.Flink,
 585                                                        VDM_DOS_RECORD,
 586                                                        Entry);
 587
 588         switch (UpdateVdmEntryRequest->EntryIndex)
 589         {
 590             case VdmEntryUndo:
 591             {
 592                 /* Close the server event handle, the client will close the client handle */
 593                 NtClose(DosRecord->ServerEvent);
 594                 DosRecord->ServerEvent = DosRecord->ClientEvent = NULL;
 595
 596                 if (UpdateVdmEntryRequest->VDMCreationState & (VDM_UNDO_PARTIAL | VDM_UNDO_FULL))
 597                 {
 598                     /* Remove the DOS record */
 599                     if (DosRecord->CommandInfo) BaseSrvFreeVDMInfo(DosRecord->CommandInfo);
 600                     RemoveEntryList(&DosRecord->Entry);
 601                     RtlFreeHeap(BaseSrvHeap, 0, DosRecord);
 602
 603                     /*
 604                      * Since this is an undo, if that was the only DOS record the VDM
 605                      * won't even start, so the console record should be removed too.
 606                      */
 607                     if (ConsoleRecord->DosListHead.Flink == &ConsoleRecord->DosListHead)
 608                     {
 609                         RemoveEntryList(&ConsoleRecord->Entry);
 610                         RtlFreeHeap(BaseSrvHeap, 0, ConsoleRecord);
 611                     }
 612                 }
 613
 614                 /* It was successful */
 615                 Status = STATUS_SUCCESS;
 616
 617                 break;
 618             }
 619
 620             case VdmEntryUpdateProcess:
 621             {
 622                 /* Duplicate the VDM process handle */
 623                 Status = NtDuplicateObject(CsrGetClientThread()->Process->ProcessHandle,
 624                                            UpdateVdmEntryRequest->VDMProcessHandle,
 625                                            NtCurrentProcess(),
 626                                            &ConsoleRecord->ProcessHandle,
 627                                            0,
 628                                            0,
 629                                            DUPLICATE_SAME_ATTRIBUTES | DUPLICATE_SAME_ACCESS);
 630                 if (!NT_SUCCESS(Status)) goto Cleanup;
 631
 632                 /* Create a pair of handles to one event object */
 633                 Status = BaseSrvCreatePairWaitHandles(&DosRecord->ServerEvent,
 634                                                       &DosRecord->ClientEvent);
 635                 if (!NT_SUCCESS(Status)) goto Cleanup;
 636
 637                 /* Return the client event handle */
 638                 UpdateVdmEntryRequest->WaitObjectForParent = DosRecord->ClientEvent;
 639
 640                 break;
 641             }
 642
 643             case VdmEntryUpdateControlCHandler:
 644             {
 645                 // TODO: NOT IMPLEMENTED
 646                 DPRINT1("BaseSrvUpdateVDMEntry: VdmEntryUpdateControlCHandler not implemented!");
 647                 Status = STATUS_NOT_IMPLEMENTED;
 648
 649                 break;
 650             }
 651
 652             default:
 653             {
 654                 /* Invalid */
 655                 Status = STATUS_INVALID_PARAMETER;
 656             }
 657         }
 658     }
 659     else
 660     {
 661         // TODO: NOT IMPLEMENTED
 662         UNIMPLEMENTED;
 663         Status = STATUS_NOT_IMPLEMENTED;
 664     }
 665
 666 Cleanup:
 667     /* Leave the critical section */
 668     RtlLeaveCriticalSection(CriticalSection);
 669
 670     return Status;
 671 }
 672
 673 CSR_API(BaseSrvGetNextVDMCommand)
 674 {
 675     DPRINT1("%s not yet implemented\n", __FUNCTION__);
 676     return STATUS_NOT_IMPLEMENTED;
 677 }
 678
 679 CSR_API(BaseSrvExitVDM)
 680 {
 681     NTSTATUS Status;
 682     PBASE_EXIT_VDM ExitVdmRequest = &((PBASE_API_MESSAGE)ApiMessage)->Data.ExitVDMRequest;
 683     PRTL_CRITICAL_SECTION CriticalSection = NULL;
 684     PVDM_CONSOLE_RECORD ConsoleRecord = NULL;
 685     PVDM_DOS_RECORD DosRecord;
 686
 687     CriticalSection = (ExitVdmRequest->iWowTask == 0)
 688                       ? &DosCriticalSection
 689                       : &WowCriticalSection;
 690
 691     /* Enter the critical section */
 692     RtlEnterCriticalSection(CriticalSection);
 693
 694     if (ExitVdmRequest->iWowTask == 0)
 695     {
 696         /* Get the console record */
 697         Status = BaseSrvGetConsoleRecord(ExitVdmRequest->ConsoleHandle, &ConsoleRecord);
 698         if (!NT_SUCCESS(Status)) goto Cleanup;
 699
 700         /* Cleanup the DOS records */
 701         while (ConsoleRecord->DosListHead.Flink != &ConsoleRecord->DosListHead)
 702         {
 703             DosRecord = CONTAINING_RECORD(ConsoleRecord->DosListHead.Flink,
 704                                           VDM_DOS_RECORD,
 705                                           Entry);
 706
 707             /* Set the event and close it */
 708             NtSetEvent(DosRecord->ServerEvent, NULL);
 709             NtClose(DosRecord->ServerEvent);
 710
 711             /* Remove the DOS entry */
 712             if (DosRecord->CommandInfo) BaseSrvFreeVDMInfo(DosRecord->CommandInfo);
 713             RemoveEntryList(&DosRecord->Entry);
 714             RtlFreeHeap(BaseSrvHeap, 0, DosRecord);
 715         }
 716
 717         if (ConsoleRecord->CurrentDirs != NULL)
 718         {
 719             /* Free the current directories */
 720             RtlFreeHeap(BaseSrvHeap, 0, ConsoleRecord->CurrentDirs);
 721             ConsoleRecord->CurrentDirs = NULL;
 722             ConsoleRecord->CurDirsLength = 0;
 723         }
 724
 725         /* Remove the console record */
 726         RemoveEntryList(&ConsoleRecord->Entry);
 727         RtlFreeHeap(BaseSrvHeap, 0, ConsoleRecord);
 728     }
 729     else
 730     {
 731         // TODO: NOT IMPLEMENTED
 732         UNIMPLEMENTED;
 733         Status = STATUS_NOT_IMPLEMENTED;
 734     }
 735
 736 Cleanup:
 737     /* Leave the critical section */
 738     RtlLeaveCriticalSection(CriticalSection);
 739
 740     return Status;
 741 }
 742
 743 CSR_API(BaseSrvIsFirstVDM)
 744 {
 745     PBASE_IS_FIRST_VDM IsFirstVDMRequest = &((PBASE_API_MESSAGE)ApiMessage)->Data.IsFirstVDMRequest;
 746
 747     /* Return the result */
 748     IsFirstVDMRequest->FirstVDM = FirstVDM;
 749
 750     /* Clear the first VDM flag */
 751     FirstVDM = FALSE;
 752
 753     return STATUS_SUCCESS;
 754 }
 755
 756 CSR_API(BaseSrvGetVDMExitCode)
 757 {
 758     NTSTATUS Status;
 759     PBASE_GET_VDM_EXIT_CODE GetVDMExitCodeRequest = &((PBASE_API_MESSAGE)ApiMessage)->Data.GetVDMExitCodeRequest;
 760     PLIST_ENTRY i = NULL;
 761     PVDM_CONSOLE_RECORD ConsoleRecord = NULL;
 762     PVDM_DOS_RECORD DosRecord = NULL;
 763
 764     /* Enter the critical section */
 765     RtlEnterCriticalSection(&DosCriticalSection);
 766
 767     /* Get the console record */
 768     Status = BaseSrvGetConsoleRecord(GetVDMExitCodeRequest->ConsoleHandle, &ConsoleRecord);
 769     if (!NT_SUCCESS(Status)) goto Cleanup;
 770
 771     /* Search for a DOS record that has the same parent process handle */
 772     for (i = ConsoleRecord->DosListHead.Flink; i != &ConsoleRecord->DosListHead; i = i->Flink)
 773     {
 774         DosRecord = CONTAINING_RECORD(i, VDM_DOS_RECORD, Entry);
 775         if (DosRecord->ClientEvent == GetVDMExitCodeRequest->hParent) break;
 776     }
 777
 778     /* Check if no DOS record was found */
 779     if (i == &ConsoleRecord->DosListHead)
 780     {
 781         Status = STATUS_NOT_FOUND;
 782         goto Cleanup;
 783     }
 784
 785     /* Check if this task is still running */
 786     if (DosRecord->State == VDM_READY)
 787     {
 788         GetVDMExitCodeRequest->ExitCode = STATUS_PENDING;
 789         goto Cleanup;
 790     }
 791
 792     /* Return the exit code */
 793     GetVDMExitCodeRequest->ExitCode = DosRecord->ExitCode;
 794
 795     /* Since this is a zombie task record, remove it */
 796     if (DosRecord->CommandInfo) BaseSrvFreeVDMInfo(DosRecord->CommandInfo);
 797     RemoveEntryList(&DosRecord->Entry);
 798     RtlFreeHeap(BaseSrvHeap, 0, DosRecord);
 799
 800 Cleanup:
 801     /* Leave the critical section */
 802     RtlLeaveCriticalSection(&DosCriticalSection);
 803
 804     return Status;
 805 }
 806
 807 CSR_API(BaseSrvSetReenterCount)
 808 {
 809     DPRINT1("%s not yet implemented\n", __FUNCTION__);
 810     return STATUS_NOT_IMPLEMENTED;
 811 }
 812
 813 CSR_API(BaseSrvSetVDMCurDirs)
 814 {
 815     NTSTATUS Status;
 816     PBASE_GETSET_VDM_CURDIRS VDMCurrentDirsRequest = &((PBASE_API_MESSAGE)ApiMessage)->Data.VDMCurrentDirsRequest;
 817     PVDM_CONSOLE_RECORD ConsoleRecord;
 818     PCHAR Buffer = NULL;
 819
 820     /* Validate the input buffer */
 821     if (!CsrValidateMessageBuffer(ApiMessage,
 822                                   (PVOID*)&VDMCurrentDirsRequest->lpszzCurDirs,
 823                                   VDMCurrentDirsRequest->cchCurDirs,
 824                                   sizeof(*VDMCurrentDirsRequest->lpszzCurDirs)))
 825     {
 826         return STATUS_INVALID_PARAMETER;
 827     }
 828
 829     /* Enter the critical section */
 830     RtlEnterCriticalSection(&DosCriticalSection);
 831
 832     /* Find the console record */
 833     Status = BaseSrvGetConsoleRecord(VDMCurrentDirsRequest->ConsoleHandle, &ConsoleRecord);
 834     if (!NT_SUCCESS(Status)) goto Cleanup;
 835
 836     if (ConsoleRecord->CurrentDirs == NULL)
 837     {
 838         /* Allocate memory for the current directory information */
 839         Buffer = RtlAllocateHeap(BaseSrvHeap,
 840                                  HEAP_ZERO_MEMORY,
 841                                  VDMCurrentDirsRequest->cchCurDirs);
 842     }
 843     else
 844     {
 845         /* Resize the amount of allocated memory */
 846         Buffer = RtlReAllocateHeap(BaseSrvHeap,
 847                                    HEAP_ZERO_MEMORY,
 848                                    ConsoleRecord->CurrentDirs,
 849                                    VDMCurrentDirsRequest->cchCurDirs);
 850     }
 851
 852     if (Buffer == NULL)
 853     {
 854         /* Allocation failed */
 855         Status = STATUS_NO_MEMORY;
 856         goto Cleanup;
 857     }
 858
 859     /* Update the console record */
 860     ConsoleRecord->CurrentDirs = Buffer;
 861     ConsoleRecord->CurDirsLength = VDMCurrentDirsRequest->cchCurDirs;
 862
 863     /* Copy the data */
 864     RtlMoveMemory(ConsoleRecord->CurrentDirs,
 865                   VDMCurrentDirsRequest->lpszzCurDirs,
 866                   VDMCurrentDirsRequest->cchCurDirs);
 867
 868 Cleanup:
 869     /* Leave the critical section */
 870     RtlLeaveCriticalSection(&DosCriticalSection);
 871
 872     return Status;
 873 }
 874
 875 CSR_API(BaseSrvGetVDMCurDirs)
 876 {
 877     NTSTATUS Status;
 878     PBASE_GETSET_VDM_CURDIRS VDMCurrentDirsRequest = &((PBASE_API_MESSAGE)ApiMessage)->Data.VDMCurrentDirsRequest;
 879     PVDM_CONSOLE_RECORD ConsoleRecord;
 880
 881     /* Validate the output buffer */
 882     if (!CsrValidateMessageBuffer(ApiMessage,
 883                                   (PVOID*)&VDMCurrentDirsRequest->lpszzCurDirs,
 884                                   VDMCurrentDirsRequest->cchCurDirs,
 885                                   sizeof(*VDMCurrentDirsRequest->lpszzCurDirs)))
 886     {
 887         return STATUS_INVALID_PARAMETER;
 888     }
 889
 890     /* Enter the critical section */
 891     RtlEnterCriticalSection(&DosCriticalSection);
 892
 893     /* Find the console record */
 894     Status = BaseSrvGetConsoleRecord(VDMCurrentDirsRequest->ConsoleHandle, &ConsoleRecord);
 895     if (!NT_SUCCESS(Status)) goto Cleanup;
 896
 897     /* Return the actual size of the current directory information */
 898     VDMCurrentDirsRequest->cchCurDirs = ConsoleRecord->CurDirsLength;
 899
 900     /* Check if the buffer is large enough */
 901     if (VDMCurrentDirsRequest->cchCurDirs < ConsoleRecord->CurDirsLength)
 902     {
 903         Status = STATUS_BUFFER_TOO_SMALL;
 904         goto Cleanup;
 905     }
 906
 907     /* Copy the data */
 908     RtlMoveMemory(VDMCurrentDirsRequest->lpszzCurDirs,
 909                   ConsoleRecord->CurrentDirs,
 910                   ConsoleRecord->CurDirsLength);
 911
 912 Cleanup:
 913     /* Leave the critical section */
 914     RtlLeaveCriticalSection(&DosCriticalSection);
 915
 916     return Status;
 917 }
 918
 919 CSR_API(BaseSrvBatNotification)
 920 {
 921     DPRINT1("%s not yet implemented\n", __FUNCTION__);
 922     return STATUS_NOT_IMPLEMENTED;
 923 }
 924
 925 CSR_API(BaseSrvRegisterWowExec)
 926 {
 927     DPRINT1("%s not yet implemented\n", __FUNCTION__);
 928     return STATUS_NOT_IMPLEMENTED;
 929 }
 930
 931 CSR_API(BaseSrvRefreshIniFileMapping)
 932 {
 933     DPRINT1("%s not yet implemented\n", __FUNCTION__);
 934     return STATUS_NOT_IMPLEMENTED;
 935 }
 936
 937 /* EOF */