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
  24 /* FUNCTIONS ******************************************************************/
  25
  26 NTSTATUS NTAPI BaseSrvGetConsoleRecord(HANDLE ConsoleHandle, PVDM_CONSOLE_RECORD *Record)
  27 {
  28     PLIST_ENTRY i;
  29     PVDM_CONSOLE_RECORD CurrentRecord = NULL;
  30
  31     /* Search for a record that has the same console handle */
  32     for (i = VDMConsoleListHead.Flink; i != &VDMConsoleListHead; i = i->Flink)
  33     {
  34         CurrentRecord = CONTAINING_RECORD(i, VDM_CONSOLE_RECORD, Entry);
  35         if (CurrentRecord->ConsoleHandle == ConsoleHandle) break;
  36     }
  37
  38     *Record = CurrentRecord;
  39     return CurrentRecord ? STATUS_SUCCESS : STATUS_NOT_FOUND;
  40 }
  41
  42 VOID NTAPI BaseInitializeVDM(VOID)
  43 {
  44     /* Initialize the list head */
  45     InitializeListHead(&VDMConsoleListHead);
  46
  47     /* Initialize the critical section */
  48     RtlInitializeCriticalSection(&DosCriticalSection);
  49 }
  50
  51 /* PUBLIC SERVER APIS *********************************************************/
  52
  53 CSR_API(BaseSrvCheckVDM)
  54 {
  55     PBASE_CHECK_VDM CheckVdmRequest = &((PBASE_API_MESSAGE)ApiMessage)->Data.CheckVDMRequest;
  56
  57     /* Validate the message buffers */
  58     if (!CsrValidateMessageBuffer(ApiMessage,
  59                                   (PVOID*)&CheckVdmRequest->CmdLine,
  60                                   CheckVdmRequest->CmdLen,
  61                                   sizeof(*CheckVdmRequest->CmdLine))
  62         || !CsrValidateMessageBuffer(ApiMessage,
  63                                      (PVOID*)&CheckVdmRequest->AppName,
  64                                      CheckVdmRequest->AppLen,
  65                                      sizeof(*CheckVdmRequest->AppName))
  66         || !CsrValidateMessageBuffer(ApiMessage,
  67                                      (PVOID*)&CheckVdmRequest->PifFile,
  68                                      CheckVdmRequest->PifLen,
  69                                      sizeof(*CheckVdmRequest->PifFile))
  70         || !CsrValidateMessageBuffer(ApiMessage,
  71                                      (PVOID*)&CheckVdmRequest->CurDirectory,
  72                                      CheckVdmRequest->CurDirectoryLen,
  73                                      sizeof(*CheckVdmRequest->CurDirectory))
  74         || !CsrValidateMessageBuffer(ApiMessage,
  75                                      (PVOID*)&CheckVdmRequest->Desktop,
  76                                      CheckVdmRequest->DesktopLen,
  77                                      sizeof(*CheckVdmRequest->Desktop))
  78         || !CsrValidateMessageBuffer(ApiMessage,
  79                                      (PVOID*)&CheckVdmRequest->Title,
  80                                      CheckVdmRequest->TitleLen,
  81                                      sizeof(*CheckVdmRequest->Title))
  82         || !CsrValidateMessageBuffer(ApiMessage,
  83                                      (PVOID*)&CheckVdmRequest->Reserved,
  84                                      CheckVdmRequest->ReservedLen,
  85                                      sizeof(*CheckVdmRequest->Reserved)))
  86     {
  87         return STATUS_INVALID_PARAMETER;
  88     }
  89
  90     // TODO: NOT IMPLEMENTED
  91     return STATUS_NOT_IMPLEMENTED;
  92 }
  93
  94 CSR_API(BaseSrvUpdateVDMEntry)
  95 {
  96     DPRINT1("%s not yet implemented\n", __FUNCTION__);
  97     return STATUS_NOT_IMPLEMENTED;
  98 }
  99
 100 CSR_API(BaseSrvGetNextVDMCommand)
 101 {
 102     DPRINT1("%s not yet implemented\n", __FUNCTION__);
 103     return STATUS_NOT_IMPLEMENTED;
 104 }
 105
 106 CSR_API(BaseSrvExitVDM)
 107 {
 108     DPRINT1("%s not yet implemented\n", __FUNCTION__);
 109     return STATUS_NOT_IMPLEMENTED;
 110 }
 111
 112 CSR_API(BaseSrvIsFirstVDM)
 113 {
 114     PBASE_IS_FIRST_VDM IsFirstVDMRequest = &((PBASE_API_MESSAGE)ApiMessage)->Data.IsFirstVDMRequest;
 115
 116     /* Return the result */
 117     IsFirstVDMRequest->FirstVDM = FirstVDM;
 118
 119     /* Clear the first VDM flag */
 120     FirstVDM = FALSE;
 121
 122     return STATUS_SUCCESS;
 123 }
 124
 125 CSR_API(BaseSrvGetVDMExitCode)
 126 {
 127     DPRINT1("%s not yet implemented\n", __FUNCTION__);
 128     return STATUS_NOT_IMPLEMENTED;
 129 }
 130
 131 CSR_API(BaseSrvSetReenterCount)
 132 {
 133     DPRINT1("%s not yet implemented\n", __FUNCTION__);
 134     return STATUS_NOT_IMPLEMENTED;
 135 }
 136
 137 CSR_API(BaseSrvSetVDMCurDirs)
 138 {
 139     DPRINT1("%s not yet implemented\n", __FUNCTION__);
 140     return STATUS_NOT_IMPLEMENTED;
 141 }
 142
 143 CSR_API(BaseSrvGetVDMCurDirs)
 144 {
 145     NTSTATUS Status;
 146     PBASE_GETSET_VDM_CURDIRS VDMCurrentDirsRequest = &((PBASE_API_MESSAGE)ApiMessage)->Data.VDMCurrentDirsRequest;
 147     PVDM_CONSOLE_RECORD ConsoleRecord;
 148
 149     /* Validate the output buffer */
 150     if (!CsrValidateMessageBuffer(ApiMessage,
 151                                   (PVOID*)&VDMCurrentDirsRequest->lpszzCurDirs,
 152                                   VDMCurrentDirsRequest->cchCurDirs,
 153                                   sizeof(*VDMCurrentDirsRequest->lpszzCurDirs)))
 154     {
 155         return STATUS_INVALID_PARAMETER;
 156     }
 157
 158     /* Enter the critical section */
 159     RtlEnterCriticalSection(&DosCriticalSection);
 160
 161     /* Find the console record */
 162     Status = BaseSrvGetConsoleRecord(VDMCurrentDirsRequest->ConsoleHandle, &ConsoleRecord);
 163     if (!NT_SUCCESS(Status)) goto Cleanup;
 164
 165     /* Check if the buffer is large enough */
 166     if (VDMCurrentDirsRequest->cchCurDirs < ConsoleRecord->CurDirsLength)
 167     {
 168         Status = STATUS_BUFFER_TOO_SMALL;
 169         goto Cleanup;
 170     }
 171
 172     /* Copy the data */
 173     RtlMoveMemory(VDMCurrentDirsRequest->lpszzCurDirs,
 174                   ConsoleRecord->CurrentDirs,
 175                   ConsoleRecord->CurDirsLength);
 176
 177 Cleanup:
 178     /* Leave the critical section */
 179     RtlLeaveCriticalSection(&DosCriticalSection);
 180
 181     return Status;
 182 }
 183
 184 CSR_API(BaseSrvBatNotification)
 185 {
 186     DPRINT1("%s not yet implemented\n", __FUNCTION__);
 187     return STATUS_NOT_IMPLEMENTED;
 188 }
 189
 190 CSR_API(BaseSrvRegisterWowExec)
 191 {
 192     DPRINT1("%s not yet implemented\n", __FUNCTION__);
 193     return STATUS_NOT_IMPLEMENTED;
 194 }
 195
 196 CSR_API(BaseSrvRefreshIniFileMapping)
 197 {
 198     DPRINT1("%s not yet implemented\n", __FUNCTION__);
 199     return STATUS_NOT_IMPLEMENTED;
 200 }
 201
 202 /* EOF */