NTSTATUS
_main(IN INT argc,
IN PCHAR argv[],
IN PCHAR envp[],
IN ULONG DebugFlag)
{
NTSTATUS Status;
KPRIORITY SetBasePriority;
ULONG_PTR Parameters[4];
HANDLE Handles[2];
PVOID State;
ULONG Flags;
PROCESS_BASIC_INFORMATION ProcessInfo;
UNICODE_STRING DbgString, InitialCommand;
/* Make us critical */
RtlSetProcessIsCritical(TRUE, NULL, FALSE);
RtlSetThreadIsCritical(TRUE, NULL, FALSE);
/* Raise our priority */
SetBasePriority = 11;
Status = NtSetInformationProcess(NtCurrentProcess(),
ProcessBasePriority,
(PVOID)&SetBasePriority,
sizeof(SetBasePriority));
ASSERT(NT_SUCCESS(Status));
/* Save the debug flag if it was passed */
if (DebugFlag) SmpDebug = DebugFlag != 0;
/* Build the hard error parameters */
Parameters[0] = (ULONG_PTR)&DbgString;
Parameters[1] = Parameters[2] = Parameters[3] = 0;
/* Enter SEH so we can terminate correctly if anything goes wrong */
_SEH2_TRY
{
/* Initialize SMSS */
Status = SmpInit(&InitialCommand, Handles);
if (!NT_SUCCESS(Status))
{
DPRINT1("SMSS: SmpInit return failure - Status == %x\n", Status);
RtlInitUnicodeString(&DbgString, L"Session Manager Initialization");
Parameters[1] = Status;
_SEH2_LEAVE;
}
/* Get the global flags */
Status = NtQuerySystemInformation(SystemFlagsInformation,
&Flags,
sizeof(Flags),
NULL);
ASSERT(NT_SUCCESS(Status));
/* Before executing the initial command check if the debug flag is on */
if (Flags & (FLG_DEBUG_INITIAL_COMMAND | FLG_DEBUG_INITIAL_COMMAND_EX))
{
/* SMSS should launch ntsd with a few parameters at this point */
DPRINT1("Global Flags Set to SMSS Debugging: Not yet supported\n");
}
/* Execute the initial command (Winlogon.exe) */
Status = SmpExecuteInitialCommand(0, &InitialCommand, &Handles[1], NULL);
if (!NT_SUCCESS(Status))
{
/* Fail and raise a hard error */
DPRINT1("SMSS: Execute Initial Command failed\n");
RtlInitUnicodeString(&DbgString,
L"Session Manager ExecuteInitialCommand");
Parameters[1] = Status;
_SEH2_LEAVE;
}
/* Check if we're already attached to a session */
Status = SmpAcquirePrivilege(SE_LOAD_DRIVER_PRIVILEGE, &State);
if (AttachedSessionId != -1)
{
/* Detach from it, we should be in no session right now */
Status = NtSetSystemInformation(SystemSessionDetach,
&AttachedSessionId,
sizeof(AttachedSessionId));
ASSERT(NT_SUCCESS(Status));
AttachedSessionId = -1;
}
SmpReleasePrivilege(State);
/* Wait on either CSRSS or Winlogon to die */
Status = NtWaitForMultipleObjects(RTL_NUMBER_OF(Handles),
Handles,
WaitAny,
FALSE,
NULL);
if (Status == STATUS_WAIT_0)
{
/* CSRSS is dead, get exit code and prepare for the hard error */
RtlInitUnicodeString(&DbgString, L"Windows SubSystem");
Status = NtQueryInformationProcess(Handles[0],
ProcessBasicInformation,
&ProcessInfo,
sizeof(ProcessInfo),
NULL);
DPRINT1("SMSS: Windows subsystem terminated when it wasn't supposed to.\n");
}
else
{
/* The initial command is dead or we have another failure */
RtlInitUnicodeString(&DbgString, L"Windows Logon Process");
if (Status == STATUS_WAIT_1)
{
/* Winlogon.exe got terminated, get its exit code */
Status = NtQueryInformationProcess(Handles[1],
ProcessBasicInformation,
&ProcessInfo,
sizeof(ProcessInfo),
NULL);
}
else
{
/* Something else satisfied our wait, so set the wait status */
ProcessInfo.ExitStatus = Status;
Status = STATUS_SUCCESS;
}
DPRINT1("SMSS: Initial command '%wZ' terminated when it wasn't supposed to.\n",
&InitialCommand);
}
/* Check if NtQueryInformationProcess was successful */
if (NT_SUCCESS(Status))
{
/* Then we must have a valid exit status in the structure, use it */
Parameters[1] = ProcessInfo.ExitStatus;
}
else
{
/* We really don't know what happened, so set a generic error */
Parameters[1] = STATUS_UNSUCCESSFUL;
}
}
_SEH2_EXCEPT(SmpUnhandledExceptionFilter(_SEH2_GetExceptionInformation()))
{
/* The filter should never return here */
ASSERT(FALSE);
}
_SEH2_END;
/* Something in the init loop failed, terminate SMSS */
return SmpTerminate(Parameters, 1, RTL_NUMBER_OF(Parameters));
}
ULONG
NTAPI
SmpApiLoop(IN PVOID Parameter)
{
HANDLE SmApiPort = (HANDLE)Parameter;
NTSTATUS Status;
PSMP_CLIENT_CONTEXT ClientContext;
PSM_API_MSG ReplyMsg = NULL;
SM_API_MSG RequestMsg;
PROCESS_BASIC_INFORMATION ProcessInformation;
LARGE_INTEGER Timeout;
/* Increase the number of API threads for throttling code for later */
_InterlockedExchangeAdd(&SmTotalApiThreads, 1);
/* Mark us critical */
RtlSetThreadIsCritical(TRUE, NULL, TRUE);
/* Set the PID of the SM process itself for later checking */
NtQueryInformationProcess(NtCurrentProcess(),
ProcessBasicInformation,
&ProcessInformation,
sizeof(ProcessInformation),
NULL);
SmUniqueProcessId = (HANDLE)ProcessInformation.UniqueProcessId;
/* Now process incoming messages */
while (TRUE)
{
/* Begin waiting on a request */
Status = NtReplyWaitReceivePort(SmApiPort,
(PVOID*)&ClientContext,
&ReplyMsg->h,
&RequestMsg.h);
if (Status == STATUS_NO_MEMORY)
{
/* Ran out of memory, so do a little timeout and try again */
if (ReplyMsg) DPRINT1("SMSS: Failed to reply to calling thread, retrying.\n");
Timeout.QuadPart = -50000000;
NtDelayExecution(FALSE, &Timeout);
continue;
}
/* Check what kind of request we received */
switch (RequestMsg.h.u2.s2.Type)
{
/* A new connection */
case LPC_CONNECTION_REQUEST:
/* Create the right structures for it */
SmpHandleConnectionRequest(SmApiPort, (PSB_API_MSG)&RequestMsg);
ReplyMsg = NULL;
break;
/* A closed connection */
case LPC_PORT_CLOSED:
/* Destroy any state we had for this client */
DPRINT1("Port closed\n");
//if (ClientContext) SmpPushDeferredClientContext(ClientContext);
ReplyMsg = NULL;
break;
/* An actual API message */
default:
if (!ClientContext)
{
ReplyMsg = NULL;
break;
}
RequestMsg.ReturnValue = STATUS_PENDING;
/* Check if the API is valid */
if (RequestMsg.ApiNumber >= SmpMaxApiNumber)
{
/* It isn't, fail */
DPRINT1("Invalid API: %lx\n", RequestMsg.ApiNumber);
Status = STATUS_NOT_IMPLEMENTED;
}
else if ((RequestMsg.ApiNumber <= SmpTerminateForeignSessionApi) &&
!(ClientContext->Subsystem))
{
/* It's valid, but doesn't have a subsystem with it */
DPRINT1("Invalid session API\n");
Status = STATUS_INVALID_PARAMETER;
}
else
{
/* It's totally okay, so call the dispatcher for it */
Status = SmpApiDispatch[RequestMsg.ApiNumber](&RequestMsg,
ClientContext,
SmApiPort);
}
/* Write the result valud and return the message back */
RequestMsg.ReturnValue = Status;
ReplyMsg = &RequestMsg;
break;
}
}
return STATUS_SUCCESS;
}
int
WINAPI
WinMain(
IN HINSTANCE hInstance,
IN HINSTANCE hPrevInstance,
IN LPSTR lpCmdLine,
IN int nShowCmd)
{
#if 0
LSA_STRING ProcessName, PackageName;
HANDLE LsaHandle;
LSA_OPERATIONAL_MODE Mode;
BOOLEAN Old;
ULONG AuthenticationPackage;
NTSTATUS Status;
#endif
ULONG HardErrorResponse;
MSG Msg;
UNREFERENCED_PARAMETER(hPrevInstance);
UNREFERENCED_PARAMETER(lpCmdLine);
UNREFERENCED_PARAMETER(nShowCmd);
hAppInstance = hInstance;
/* Make us critical */
RtlSetProcessIsCritical(TRUE, NULL, FALSE);
RtlSetThreadIsCritical(TRUE, NULL, FALSE);
if (!RegisterLogonProcess(GetCurrentProcessId(), TRUE))
{
ERR("WL: Could not register logon process\n");
NtRaiseHardError(STATUS_SYSTEM_PROCESS_TERMINATED, 0, 0, NULL, OptionOk, &HardErrorResponse);
ExitProcess(1);
}
WLSession = (PWLSESSION)HeapAlloc(GetProcessHeap(), 0, sizeof(WLSESSION));
if (!WLSession)
{
ERR("WL: Could not allocate memory for winlogon instance\n");
NtRaiseHardError(STATUS_SYSTEM_PROCESS_TERMINATED, 0, 0, NULL, OptionOk, &HardErrorResponse);
ExitProcess(1);
}
ZeroMemory(WLSession, sizeof(WLSESSION));
WLSession->DialogTimeout = 120; /* 2 minutes */
/* Initialize the dialog tracking list */
InitDialogListHead();
if (!CreateWindowStationAndDesktops(WLSession))
{
ERR("WL: Could not create window station and desktops\n");
NtRaiseHardError(STATUS_SYSTEM_PROCESS_TERMINATED, 0, 0, NULL, OptionOk, &HardErrorResponse);
ExitProcess(1);
}
LockWorkstation(WLSession);
/* Load default keyboard layouts */
if (!InitKeyboardLayouts())
{
ERR("WL: Could not preload keyboard layouts\n");
NtRaiseHardError(STATUS_SYSTEM_PROCESS_TERMINATED, 0, 0, NULL, OptionOk, &HardErrorResponse);
ExitProcess(1);
}
if (!StartRpcServer())
{
ERR("WL: Could not start the RPC server\n");
NtRaiseHardError(STATUS_SYSTEM_PROCESS_TERMINATED, 0, 0, NULL, OptionOk, &HardErrorResponse);
ExitProcess(1);
}
if (!StartServicesManager())
{
ERR("WL: Could not start services.exe\n");
NtRaiseHardError(STATUS_SYSTEM_PROCESS_TERMINATED, 0, 0, NULL, OptionOk, &HardErrorResponse);
ExitProcess(1);
}
if (!StartLsass())
{
ERR("WL: Failed to start lsass.exe service (error %lu)\n", GetLastError());
NtRaiseHardError(STATUS_SYSTEM_PROCESS_TERMINATED, 0, 0, NULL, OptionOk, &HardErrorResponse);
ExitProcess(1);
}
/* Wait for the LSA server */
WaitForLsass();
/* Init Notifications */
InitNotifications();
/* Load and initialize gina */
if (!GinaInit(WLSession))
{
ERR("WL: Failed to initialize Gina\n");
// FIXME: Retrieve the real name of the GINA DLL we were trying to load.
// It is known only inside the GinaInit function...
DialogBoxParam(hAppInstance, MAKEINTRESOURCE(IDD_GINALOADFAILED), GetDesktopWindow(), GinaLoadFailedWindowProc, (LPARAM)L"msgina.dll");
HandleShutdown(WLSession, WLX_SAS_ACTION_SHUTDOWN_REBOOT);
ExitProcess(1);
}
DisplayStatusMessage(WLSession, WLSession->WinlogonDesktop, IDS_REACTOSISSTARTINGUP);
#if 0
/* Connect to NetLogon service (lsass.exe) */
/* Real winlogon uses "Winlogon" */
RtlInitUnicodeString((PUNICODE_STRING)&ProcessName, L"Winlogon");
Status = LsaRegisterLogonProcess(&ProcessName, &LsaHandle, &Mode);
if (Status == STATUS_PORT_CONNECTION_REFUSED)
{
/* Add the 'SeTcbPrivilege' privilege and try again */
Status = RtlAdjustPrivilege(SE_TCB_PRIVILEGE, TRUE, TRUE, &Old);
if (!NT_SUCCESS(Status))
{
ERR("RtlAdjustPrivilege() failed with error %lu\n", LsaNtStatusToWinError(Status));
return 1;
}
Status = LsaRegisterLogonProcess(&ProcessName, &LsaHandle, &Mode);
}
if (!NT_SUCCESS(Status))
{
ERR("LsaRegisterLogonProcess() failed with error %lu\n", LsaNtStatusToWinError(Status));
return 1;
}
RtlInitUnicodeString((PUNICODE_STRING)&PackageName, MICROSOFT_KERBEROS_NAME_W);
Status = LsaLookupAuthenticationPackage(LsaHandle, &PackageName, &AuthenticationPackage);
if (!NT_SUCCESS(Status))
{
ERR("LsaLookupAuthenticationPackage() failed with error %lu\n", LsaNtStatusToWinError(Status));
LsaDeregisterLogonProcess(LsaHandle);
return 1;
}
#endif
CallNotificationDlls(WLSession, StartupHandler);
/* Create a hidden window to get SAS notifications */
if (!InitializeSAS(WLSession))
{
ERR("WL: Failed to initialize SAS\n");
ExitProcess(2);
}
// DisplayStatusMessage(Session, Session->WinlogonDesktop, IDS_PREPARENETWORKCONNECTIONS);
// DisplayStatusMessage(Session, Session->WinlogonDesktop, IDS_APPLYINGCOMPUTERSETTINGS);
/* Display logged out screen */
WLSession->LogonState = STATE_INIT;
RemoveStatusMessage(WLSession);
/* Check for pending setup */
if (GetSetupType() != 0)
{
/* Run setup and reboot when done */
TRACE("WL: Setup mode detected\n");
RunSetup();
}
else
{
PostMessageW(WLSession->SASWindow, WLX_WM_SAS, WLX_SAS_TYPE_CTRL_ALT_DEL, 0);
}
(void)LoadLibraryW(L"sfc_os.dll");
/* Tell kernel that CurrentControlSet is good (needed
* to support Last good known configuration boot) */
NtInitializeRegistry(CM_BOOT_FLAG_ACCEPTED | 1);
/* Message loop for the SAS window */
while (GetMessageW(&Msg, WLSession->SASWindow, 0, 0))
{
TranslateMessage(&Msg);
DispatchMessageW(&Msg);
}
CleanupNotifications();
/* We never go there */
return 0;
}