init.c

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

/* $Id: init.c 27176 2007-06-14 19:09:32Z dgorbachev $
 *
 * reactos/subsys/csrss/init.c
 *
 * Initialize the CSRSS subsystem server process.
 *
 * ReactOS Operating System
 *
 */

/* INCLUDES ******************************************************************/

#include <csrss.h>

#define NDEBUG
#include <debug.h>

/* GLOBALS ******************************************************************/

HANDLE CsrHeap = (HANDLE) 0;

HANDLE CsrObjectDirectory = (HANDLE) 0;

UNICODE_STRING CsrDirectoryName;

extern HANDLE CsrssApiHeap;

static unsigned InitCompleteProcCount;
static CSRPLUGIN_INIT_COMPLETE_PROC *InitCompleteProcs = NULL;

static unsigned HardErrorProcCount;
static CSRPLUGIN_HARDERROR_PROC *HardErrorProcs = NULL;

HANDLE hSbApiPort = (HANDLE) 0;

HANDLE hBootstrapOk = (HANDLE) 0;

HANDLE hSmApiPort = (HANDLE) 0;

HANDLE hApiPort = (HANDLE) 0;

/**********************************************************************
 * CsrpAddInitCompleteProc/1
 */
static NTSTATUS FASTCALL
CsrpAddInitCompleteProc(CSRPLUGIN_INIT_COMPLETE_PROC Proc)
{
  CSRPLUGIN_INIT_COMPLETE_PROC *NewProcs;

  DPRINT("CSR: %s called\n", __FUNCTION__);

  NewProcs = RtlAllocateHeap(CsrssApiHeap, 0,
                             (InitCompleteProcCount + 1)
                             * sizeof(CSRPLUGIN_INIT_COMPLETE_PROC));
  if (NULL == NewProcs)
    {
      return STATUS_NO_MEMORY;
    }
  if (0 != InitCompleteProcCount)
    {
      RtlCopyMemory(NewProcs, InitCompleteProcs,
                    InitCompleteProcCount * sizeof(CSRPLUGIN_INIT_COMPLETE_PROC));
      RtlFreeHeap(CsrssApiHeap, 0, InitCompleteProcs);
    }
  NewProcs[InitCompleteProcCount] = Proc;
  InitCompleteProcs = NewProcs;
  InitCompleteProcCount++;

  return STATUS_SUCCESS;
}

static NTSTATUS FASTCALL
CsrpAddHardErrorProc(CSRPLUGIN_HARDERROR_PROC Proc)
{
    CSRPLUGIN_HARDERROR_PROC *NewProcs;

    DPRINT("CSR: %s called\n", __FUNCTION__);

    NewProcs = RtlAllocateHeap(CsrssApiHeap, 0,
                               (HardErrorProcCount + 1)
                               * sizeof(CSRPLUGIN_HARDERROR_PROC));
    if (NULL == NewProcs)
    {
        return STATUS_NO_MEMORY;
    }
    if (0 != HardErrorProcCount)
    {
        RtlCopyMemory(NewProcs, HardErrorProcs,
            HardErrorProcCount * sizeof(CSRPLUGIN_HARDERROR_PROC));
        RtlFreeHeap(CsrssApiHeap, 0, HardErrorProcs);
    }

    NewProcs[HardErrorProcCount] = Proc;
    HardErrorProcs = NewProcs;
    HardErrorProcCount++;

    return STATUS_SUCCESS;
}

/**********************************************************************
 * CallInitComplete/0
 */
static BOOL FASTCALL
CallInitComplete(void)
{
  BOOL Ok;
  unsigned i;

  DPRINT("CSR: %s called\n", __FUNCTION__);

  Ok = TRUE;
  if (0 != InitCompleteProcCount)
    {
      for (i = 0; i < InitCompleteProcCount && Ok; i++)
        {
          Ok = (*(InitCompleteProcs[i]))();
        }
      RtlFreeHeap(CsrssApiHeap, 0, InitCompleteProcs);
    }

  return Ok;
}

BOOL
FASTCALL
CallHardError(void)
{
    BOOL Ok;
    unsigned i;

    DPRINT("CSR: %s called\n", __FUNCTION__);

    Ok = TRUE;
    if (0 != HardErrorProcCount)
    {
        for (i = 0; i < HardErrorProcCount && Ok; i++)
        {
            Ok = (*(HardErrorProcs[i]))();
        }
    }

    return Ok;
}

ULONG
InitializeVideoAddressSpace(VOID);

/**********************************************************************
 * CsrpCreateObjectDirectory/3
 */
static NTSTATUS
CsrpCreateObjectDirectory (int argc, char ** argv, char ** envp)
{
   NTSTATUS Status;
   OBJECT_ATTRIBUTES Attributes;

  DPRINT("CSR: %s called\n", __FUNCTION__);


	/* create object directory ('\Windows') */
	RtlCreateUnicodeString (&CsrDirectoryName,
	                        L"\\Windows");

	InitializeObjectAttributes (&Attributes,
	                            &CsrDirectoryName,
	                            OBJ_OPENIF,
	                            NULL,
	                            NULL);

	Status = NtOpenDirectoryObject(&CsrObjectDirectory,
	                               DIRECTORY_ALL_ACCESS,
	                               &Attributes);
	return Status;
}

/**********************************************************************
 * CsrpInitVideo/3
 *
 * TODO: we need a virtual device for sessions other than
 * TODO: the console one
 */
static NTSTATUS
CsrpInitVideo (int argc, char ** argv, char ** envp)
{
  OBJECT_ATTRIBUTES ObjectAttributes;
  UNICODE_STRING DeviceName = RTL_CONSTANT_STRING(L"\\??\\DISPLAY1");
  IO_STATUS_BLOCK Iosb;
  HANDLE VideoHandle = (HANDLE) 0;
  NTSTATUS Status = STATUS_SUCCESS;

  DPRINT("CSR: %s called\n", __FUNCTION__);

  InitializeVideoAddressSpace();

  InitializeObjectAttributes(&ObjectAttributes,
			     &DeviceName,
			     0,
			     NULL,
			     NULL);
  Status = NtOpenFile(&VideoHandle,
		      FILE_ALL_ACCESS,
		      &ObjectAttributes,
		      &Iosb,
		      0,
		      0);
  if (NT_SUCCESS(Status))
    {
      NtClose(VideoHandle);
    }
  return Status;
}

/**********************************************************************
 * CsrpInitWin32Csr/3
 *
 * TODO: this function should be turned more general to load an
 * TODO: hosted server DLL as received from the command line;
 * TODO: for instance: ServerDll=winsrv:ConServerDllInitialization,2
 * TODO:               ^method   ^dll   ^api                       ^sid
 * TODO:
 * TODO: CsrpHostServerDll (LPWSTR DllName,
 * TODO:                    LPWSTR ApiName,
 * TODO:                    DWORD  ServerId)
 */
static NTSTATUS
CsrpInitWin32Csr (int argc, char ** argv, char ** envp)
{
  NTSTATUS Status;
  UNICODE_STRING DllName;
  HINSTANCE hInst;
  ANSI_STRING ProcName;
  CSRPLUGIN_INITIALIZE_PROC InitProc;
  CSRSS_EXPORTED_FUNCS Exports;
  PCSRSS_API_DEFINITION ApiDefinitions;
  PCSRSS_OBJECT_DEFINITION ObjectDefinitions;
  CSRPLUGIN_INIT_COMPLETE_PROC InitCompleteProc;
  CSRPLUGIN_HARDERROR_PROC HardErrorProc;

  DPRINT("CSR: %s called\n", __FUNCTION__);

  RtlInitUnicodeString(&DllName, L"win32csr.dll");
  Status = LdrLoadDll(NULL, 0, &DllName, (PVOID *) &hInst);
  if (! NT_SUCCESS(Status))
    {
      return Status;
    }
  RtlInitAnsiString(&ProcName, "Win32CsrInitialization");
  Status = LdrGetProcedureAddress(hInst, &ProcName, 0, (PVOID *) &InitProc);
  if (! NT_SUCCESS(Status))
    {
      return Status;
    }
  Exports.CsrInsertObjectProc = CsrInsertObject;
  Exports.CsrGetObjectProc = CsrGetObject;
  Exports.CsrReleaseObjectProc = CsrReleaseObject;
  Exports.CsrEnumProcessesProc = CsrEnumProcesses;
  if (! (*InitProc)(&ApiDefinitions, &ObjectDefinitions, &InitCompleteProc,
                    &HardErrorProc, &Exports, CsrssApiHeap))
    {
      return STATUS_UNSUCCESSFUL;
    }

  Status = CsrApiRegisterDefinitions(ApiDefinitions);
  if (! NT_SUCCESS(Status))
    {
      return Status;
    }
  Status = CsrRegisterObjectDefinitions(ObjectDefinitions);
  if (! NT_SUCCESS(Status))
    {
      return Status;
    }
  if (NULL != InitCompleteProc)
    {
      Status = CsrpAddInitCompleteProc(InitCompleteProc);
    }
  if (HardErrorProc) Status = CsrpAddHardErrorProc(HardErrorProc);

  return Status;
}

CSRSS_API_DEFINITION NativeDefinitions[] =
  {
    CSRSS_DEFINE_API(CREATE_PROCESS,               CsrCreateProcess),
    CSRSS_DEFINE_API(TERMINATE_PROCESS,            CsrTerminateProcess),
    CSRSS_DEFINE_API(CONNECT_PROCESS,              CsrConnectProcess),
    CSRSS_DEFINE_API(REGISTER_SERVICES_PROCESS,    CsrRegisterServicesProcess),
    CSRSS_DEFINE_API(GET_SHUTDOWN_PARAMETERS,      CsrGetShutdownParameters),
    CSRSS_DEFINE_API(SET_SHUTDOWN_PARAMETERS,      CsrSetShutdownParameters),
    CSRSS_DEFINE_API(GET_INPUT_HANDLE,             CsrGetInputHandle),
    CSRSS_DEFINE_API(GET_OUTPUT_HANDLE,            CsrGetOutputHandle),
    CSRSS_DEFINE_API(CLOSE_HANDLE,                 CsrCloseHandle),
    CSRSS_DEFINE_API(VERIFY_HANDLE,                CsrVerifyHandle),
    CSRSS_DEFINE_API(DUPLICATE_HANDLE,             CsrDuplicateHandle),
    CSRSS_DEFINE_API(GET_INPUT_WAIT_HANDLE,        CsrGetInputWaitHandle),
    { 0, 0, NULL }
  };

static NTSTATUS STDCALL
CsrpCreateListenPort (IN     LPWSTR  Name,
		      IN OUT PHANDLE Port,
		      IN     PTHREAD_START_ROUTINE ListenThread)
{
	NTSTATUS           Status = STATUS_SUCCESS;
	OBJECT_ATTRIBUTES  PortAttributes;
	UNICODE_STRING     PortName;

	DPRINT("CSR: %s called\n", __FUNCTION__);

	RtlInitUnicodeString (& PortName, Name);
	InitializeObjectAttributes (& PortAttributes,
				    & PortName,
				    0,
				    NULL,
				    NULL);
	Status = NtCreatePort ( Port,
				& PortAttributes,
				LPC_MAX_DATA_LENGTH, /* TODO: make caller set it*/
				LPC_MAX_MESSAGE_LENGTH, /* TODO: make caller set it*/
				0); /* TODO: make caller set it*/
	if(!NT_SUCCESS(Status))
	{
		DPRINT1("CSR: %s: NtCreatePort failed (Status=%08lx)\n",
			__FUNCTION__, Status);
		return Status;
	}
	Status = RtlCreateUserThread(NtCurrentProcess(),
                               NULL,
                               FALSE,
                               0,
                               0,
                               0,
                               (PTHREAD_START_ROUTINE) ListenThread,
                               *Port,
                               NULL,
                               NULL);
	return Status;
}

/* === INIT ROUTINES === */

/**********************************************************************
 * CsrpCreateHeap/3