sas.c File Reference

#include "winlogon.h"
#include <aclapi.h>
#include <mmsystem.h>
#include <userenv.h>
#include <ndk/setypes.h>
#include <ndk/sefuncs.h>

Include dependency graph for sas.c:

Go to the source code of this file.

Classes
struct	tagLOGOFF_SHUTDOWN_DATA

Macros
#define	WIN32_LEAN_AND_MEAN
#define	WINLOGON_SAS_CLASS   L"SAS Window class"
#define	WINLOGON_SAS_TITLE   L"SAS window"
#define	HK_CTRL_ALT_DEL   0
#define	HK_CTRL_SHIFT_ESC   1
#define	EWX_ACTION_MASK   0x5C0F

Typedefs
typedef struct tagLOGOFF_SHUTDOWN_DATA	LOGOFF_SHUTDOWN_DATA
typedef struct tagLOGOFF_SHUTDOWN_DATA *	PLOGOFF_SHUTDOWN_DATA

Functions
static BOOL	StartTaskManager (IN OUT PWLSESSION Session)
static BOOL	StartUserShell (IN OUT PWLSESSION Session)
BOOL	SetDefaultLanguage (IN PWLSESSION Session)
BOOL	PlaySoundRoutine (IN LPCWSTR FileName, IN UINT bLogon, IN UINT Flags)
DWORD WINAPI	PlayLogonSoundThread (IN LPVOID lpParameter)
static VOID	PlayLogonSound (IN OUT PWLSESSION Session)
static BOOL	AllowWinstaAccess (PWLSESSION Session)
static VOID	RestoreAllConnections (PWLSESSION Session)
static BOOL	HandleLogon (IN OUT PWLSESSION Session)
static DWORD WINAPI	LogoffShutdownThread (LPVOID Parameter)
static DWORD WINAPI	KillComProcesses (LPVOID Parameter)
static NTSTATUS	CreateLogoffSecurityAttributes (OUT PSECURITY_ATTRIBUTES *ppsa)
static VOID	DestroyLogoffSecurityAttributes (IN PSECURITY_ATTRIBUTES psa)
static NTSTATUS	HandleLogoff (IN OUT PWLSESSION Session, IN UINT Flags)
static INT_PTR CALLBACK	ShutdownComputerWindowProc (IN HWND hwndDlg, IN UINT uMsg, IN WPARAM wParam, IN LPARAM lParam)
static VOID	UninitializeSAS (IN OUT PWLSESSION Session)
NTSTATUS	HandleShutdown (IN OUT PWLSESSION Session, IN DWORD wlxAction)
static VOID	DoGenericAction (IN OUT PWLSESSION Session, IN DWORD wlxAction)
static VOID	DispatchSAS (IN OUT PWLSESSION Session, IN DWORD dwSasType)
static BOOL	RegisterHotKeys (IN PWLSESSION Session, IN HWND hwndSAS)
static BOOL	UnregisterHotKeys (IN PWLSESSION Session, IN HWND hwndSAS)
BOOL WINAPI	HandleMessageBeep (UINT uType)
static LRESULT CALLBACK	SASWindowProc (IN HWND hwndDlg, IN UINT uMsg, IN WPARAM wParam, IN LPARAM lParam)
BOOL	InitializeSAS (IN OUT PWLSESSION Session)

Variables
static BOOL	ExitReactOSInProgress = FALSE
LUID	LuidNone = {0, 0}

Macro Definition Documentation

EWX_ACTION_MASK

#define EWX_ACTION_MASK   0x5C0F

Definition at line 37 of file sas.c.

HK_CTRL_ALT_DEL

#define HK_CTRL_ALT_DEL   0

Definition at line 29 of file sas.c.

HK_CTRL_SHIFT_ESC

#define HK_CTRL_SHIFT_ESC   1

Definition at line 30 of file sas.c.

WIN32_LEAN_AND_MEAN

#define WIN32_LEAN_AND_MEAN

Definition at line 17 of file sas.c.

WINLOGON_SAS_CLASS

#define WINLOGON_SAS_CLASS   L"SAS Window class"

Definition at line 26 of file sas.c.

WINLOGON_SAS_TITLE

#define WINLOGON_SAS_TITLE   L"SAS window"

Definition at line 27 of file sas.c.

Typedef Documentation

LOGOFF_SHUTDOWN_DATA

typedef struct tagLOGOFF_SHUTDOWN_DATA LOGOFF_SHUTDOWN_DATA

PLOGOFF_SHUTDOWN_DATA

typedef struct tagLOGOFF_SHUTDOWN_DATA * PLOGOFF_SHUTDOWN_DATA

Function Documentation

AllowWinstaAccess()

static BOOL AllowWinstaAccess ( PWLSESSION  Session )

static

Definition at line 432 of file sas.c.

{
    BOOL bSuccess = FALSE;
    DWORD dwIndex;
    DWORD dwLength = 0;
    PTOKEN_GROUPS ptg = NULL;
    PSID psid;
    TOKEN_STATISTICS Stats;
    DWORD cbStats;
    DWORD ret;

    // Get required buffer size and allocate the TOKEN_GROUPS buffer.

    if (!GetTokenInformation(Session->UserToken,
                             TokenGroups,
                             ptg,
                             0,
                             &dwLength))
    {
        if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
            return FALSE;

        ptg = (PTOKEN_GROUPS)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, dwLength);
        if (ptg == NULL)
            return FALSE;
    }

    // Get the token group information from the access token.
    if (!GetTokenInformation(Session->UserToken,
                             TokenGroups,
                             ptg,
                             dwLength,
                             &dwLength))
    {
        goto Cleanup;
    }

    // Loop through the groups to find the logon SID.

    for (dwIndex = 0; dwIndex < ptg->GroupCount; dwIndex++)
    {
        if ((ptg->Groups[dwIndex].Attributes & SE_GROUP_LOGON_ID)
            == SE_GROUP_LOGON_ID)
        {
            psid = ptg->Groups[dwIndex].Sid;
            break;
        }
    }

    dwLength = GetLengthSid(psid);

    if (!GetTokenInformation(Session->UserToken,
                             TokenStatistics,
                             &Stats,
                             sizeof(TOKEN_STATISTICS),
                             &cbStats))
    {
        WARN("Couldn't get Authentication id from user token!\n");
        goto Cleanup;
    }

    AddAceToWindowStation(Session->InteractiveWindowStation, psid);

    ret = SetWindowStationUser(Session->InteractiveWindowStation,
                               &Stats.AuthenticationId,
                               psid,
                               dwLength);
    TRACE("SetWindowStationUser returned 0x%x\n", ret);

    bSuccess = TRUE;

Cleanup:

    // Free the buffer for the token groups.
    if (ptg != NULL)
        HeapFree(GetProcessHeap(), 0, (LPVOID)ptg);

    return bSuccess;
}

Referenced by HandleLogon().

CreateLogoffSecurityAttributes()

static NTSTATUS CreateLogoffSecurityAttributes ( OUT PSECURITY_ATTRIBUTES *  ppsa )

static

Definition at line 770 of file sas.c.

{
    /* The following code is not working yet and messy */
    /* Still, it gives some ideas about data types and functions involved and */
    /* required to set up a SECURITY_DESCRIPTOR for a SECURITY_ATTRIBUTES */
    /* instance for a thread, to allow that  thread to ImpersonateLoggedOnUser(). */
    /* Specifically THREAD_SET_THREAD_TOKEN is required. */
    PSECURITY_DESCRIPTOR SecurityDescriptor = NULL;
    PSECURITY_ATTRIBUTES psa = 0;
    BYTE* pMem;
    PACL pACL;
    EXPLICIT_ACCESS Access;
    PSID pEveryoneSID = NULL;
    static SID_IDENTIFIER_AUTHORITY WorldAuthority = { SECURITY_WORLD_SID_AUTHORITY };

    *ppsa = NULL;

    // Let's first try to enumerate what kind of data we need for this to ever work:
    // 1.  The Winlogon SID, to be able to give it THREAD_SET_THREAD_TOKEN.
    // 2.  The users SID (the user trying to logoff, or rather shut down the system).
    // 3.  At least two EXPLICIT_ACCESS instances:
    // 3.1 One for Winlogon itself, giving it the rights
    //     required to THREAD_SET_THREAD_TOKEN (as it's needed to successfully call
    //     ImpersonateLoggedOnUser).
    // 3.2 One for the user, to allow *that* thread to perform its work.
    // 4.  An ACL to hold the these EXPLICIT_ACCESS ACE's.
    // 5.  A SECURITY_DESCRIPTOR to hold the ACL, and finally.
    // 6.  A SECURITY_ATTRIBUTES instance to pull all of this required stuff
    //     together, to hand it to CreateThread.
    //
    // However, it seems struct LOGOFF_SHUTDOWN_DATA doesn't contain
    // these required SID's, why they'd have to be added.
    // The Winlogon's own SID should probably only be created once,
    // while the user's SID obviously must be created for each new user.
    // Might as well store it when the user logs on?

    if(!AllocateAndInitializeSid(&WorldAuthority,
                                 1,
                                 SECURITY_WORLD_RID,
                                 0, 0, 0, 0, 0, 0, 0,
                                 &pEveryoneSID))
    {
        ERR("Failed to initialize security descriptor for logoff thread!\n");
        return STATUS_UNSUCCESSFUL;
    }

    /* set up the required security attributes to be able to shut down */
    /* To save space and time, allocate a single block of memory holding */
    /* both SECURITY_ATTRIBUTES and SECURITY_DESCRIPTOR */
    pMem = HeapAlloc(GetProcessHeap(),
                     0,
                     sizeof(SECURITY_ATTRIBUTES) +
                     SECURITY_DESCRIPTOR_MIN_LENGTH +
                     sizeof(ACL));
    if (!pMem)
    {
        ERR("Failed to allocate memory for logoff security descriptor!\n");
        return STATUS_NO_MEMORY;
    }

    /* Note that the security descriptor needs to be in _absolute_ format, */
    /* meaning its members must be pointers to other structures, rather */
    /* than the relative format using offsets */
    psa = (PSECURITY_ATTRIBUTES)pMem;
    SecurityDescriptor = (PSECURITY_DESCRIPTOR)(pMem + sizeof(SECURITY_ATTRIBUTES));
    pACL = (PACL)(((PBYTE)SecurityDescriptor) + SECURITY_DESCRIPTOR_MIN_LENGTH);

    // Initialize an EXPLICIT_ACCESS structure for an ACE.
    // The ACE will allow this thread to log off (and shut down the system, currently).
    ZeroMemory(&Access, sizeof(Access));
    Access.grfAccessPermissions = THREAD_SET_THREAD_TOKEN;
    Access.grfAccessMode = SET_ACCESS; // GRANT_ACCESS?
    Access.grfInheritance = NO_INHERITANCE;
    Access.Trustee.TrusteeForm = TRUSTEE_IS_SID;
    Access.Trustee.TrusteeType = TRUSTEE_IS_WELL_KNOWN_GROUP;
    Access.Trustee.ptstrName = pEveryoneSID;

    if (SetEntriesInAcl(1, &Access, NULL, &pACL) != ERROR_SUCCESS)
    {
        ERR("Failed to set Access Rights for logoff thread. Logging out will most likely fail.\n");

        HeapFree(GetProcessHeap(), 0, pMem);
        return STATUS_UNSUCCESSFUL;
    }

    if (!InitializeSecurityDescriptor(SecurityDescriptor, SECURITY_DESCRIPTOR_REVISION))
    {
        ERR("Failed to initialize security descriptor for logoff thread!\n");
        HeapFree(GetProcessHeap(), 0, pMem);
        return STATUS_UNSUCCESSFUL;
    }

    if (!SetSecurityDescriptorDacl(SecurityDescriptor,
                                   TRUE,     // bDaclPresent flag
                                   pACL,
                                   FALSE))   // not a default DACL
    {
        ERR("SetSecurityDescriptorDacl Error %lu\n", GetLastError());
        HeapFree(GetProcessHeap(), 0, pMem);
        return STATUS_UNSUCCESSFUL;
    }

    psa->nLength = sizeof(SECURITY_ATTRIBUTES);
    psa->lpSecurityDescriptor = SecurityDescriptor;
    psa->bInheritHandle = FALSE;

    *ppsa = psa;

    return STATUS_SUCCESS;
}

Referenced by HandleLogoff().

DestroyLogoffSecurityAttributes()

static VOID DestroyLogoffSecurityAttributes ( IN PSECURITY_ATTRIBUTES  psa )

static

Definition at line 884 of file sas.c.

{
    if (psa)
    {
        HeapFree(GetProcessHeap(), 0, psa);
    }
}

Referenced by HandleLogoff().

DispatchSAS()

static VOID DispatchSAS ( IN OUT PWLSESSION  Session, IN DWORD  dwSasType  )

static

Definition at line 1218 of file sas.c.

{
    DWORD wlxAction = WLX_SAS_ACTION_NONE;
    PSID LogonSid = NULL; /* FIXME */
    BOOL bSecure = TRUE;

    switch (dwSasType)
    {
        case WLX_SAS_TYPE_CTRL_ALT_DEL:
            switch (Session->LogonState)
            {
                case STATE_INIT:
                    Session->LogonState = STATE_LOGGED_OFF;
                    Session->Gina.Functions.WlxDisplaySASNotice(Session->Gina.Context);
                    return;

                case STATE_LOGGED_OFF:
                    Session->LogonState = STATE_LOGGED_OFF_SAS;

                    CloseAllDialogWindows();

                    Session->Options = 0;

                    wlxAction = (DWORD)Session->Gina.Functions.WlxLoggedOutSAS(
                        Session->Gina.Context,
                        Session->SASAction,
                        &Session->LogonId,
                        LogonSid,
                        &Session->Options,
                        &Session->UserToken,
                        &Session->MprNotifyInfo,
                        (PVOID*)&Session->Profile);
                    break;

                case STATE_LOGGED_OFF_SAS:
                    /* Ignore SAS if we are already in an SAS state */
                    return;

                case STATE_LOGGED_ON:
                    Session->LogonState = STATE_LOGGED_ON_SAS;
                    wlxAction = (DWORD)Session->Gina.Functions.WlxLoggedOnSAS(Session->Gina.Context, dwSasType, NULL);
                    break;

                case STATE_LOGGED_ON_SAS:
                    /* Ignore SAS if we are already in an SAS state */
                    return;

                case STATE_LOCKED:
                    Session->LogonState = STATE_LOCKED_SAS;

                    CloseAllDialogWindows();

                    wlxAction = (DWORD)Session->Gina.Functions.WlxWkstaLockedSAS(Session->Gina.Context, dwSasType);
                    break;

                case STATE_LOCKED_SAS:
                    /* Ignore SAS if we are already in an SAS state */
                    return;

                default:
                    return;
            }
            break;

        case WLX_SAS_TYPE_TIMEOUT:
            return;

        case WLX_SAS_TYPE_SCRNSVR_TIMEOUT:
            if (!Session->Gina.Functions.WlxScreenSaverNotify(Session->Gina.Context, &bSecure))
            {
                /* Skip start of screen saver */
                SetEvent(Session->hEndOfScreenSaver);
            }
            else
            {
                StartScreenSaver(Session);
                if (bSecure)
                {
                    wlxAction = WLX_SAS_ACTION_LOCK_WKSTA;
//                    DoGenericAction(Session, WLX_SAS_ACTION_LOCK_WKSTA);
                }
            }
            break;

        case WLX_SAS_TYPE_SCRNSVR_ACTIVITY:
            SetEvent(Session->hUserActivity);
            break;
    }

    DoGenericAction(Session, wlxAction);
}

Referenced by SASWindowProc().

DoGenericAction()

static VOID DoGenericAction ( IN OUT PWLSESSION  Session, IN DWORD  wlxAction  )

static

Definition at line 1128 of file sas.c.

{
    switch (wlxAction)
    {
        case WLX_SAS_ACTION_LOGON: /* 0x01 */
            if (Session->LogonState == STATE_LOGGED_OFF_SAS)
            {
                if (!HandleLogon(Session))
                {
                    Session->Gina.Functions.WlxDisplaySASNotice(Session->Gina.Context);
                    CallNotificationDlls(Session, LogonHandler);
                }
            }
            break;
        case WLX_SAS_ACTION_NONE: /* 0x02 */
            if (Session->LogonState == STATE_LOGGED_OFF_SAS)
            {
                Session->LogonState = STATE_LOGGED_OFF;
                Session->Gina.Functions.WlxDisplaySASNotice(Session->Gina.Context);
            }
            else if (Session->LogonState == STATE_LOGGED_ON_SAS)
            {
                Session->LogonState = STATE_LOGGED_ON;
            }
            else if (Session->LogonState == STATE_LOCKED_SAS)
            {
                Session->LogonState = STATE_LOCKED;
                Session->Gina.Functions.WlxDisplayLockedNotice(Session->Gina.Context);
            }
            break;
        case WLX_SAS_ACTION_LOCK_WKSTA: /* 0x03 */
            if (Session->Gina.Functions.WlxIsLockOk(Session->Gina.Context))
            {
                SwitchDesktop(Session->WinlogonDesktop);
                Session->LogonState = STATE_LOCKED;
                Session->Gina.Functions.WlxDisplayLockedNotice(Session->Gina.Context);
                CallNotificationDlls(Session, LockHandler);
            }
            break;
        case WLX_SAS_ACTION_LOGOFF: /* 0x04 */
        case WLX_SAS_ACTION_SHUTDOWN: /* 0x05 */
        case WLX_SAS_ACTION_SHUTDOWN_POWER_OFF: /* 0x0a */
        case WLX_SAS_ACTION_SHUTDOWN_REBOOT: /* 0x0b */
            if (Session->LogonState != STATE_LOGGED_OFF)
            {
                if (!Session->Gina.Functions.WlxIsLogoffOk(Session->Gina.Context))
                    break;
                if (!NT_SUCCESS(HandleLogoff(Session, EWX_LOGOFF)))
                {
                    RemoveStatusMessage(Session);
                    break;
                }
                Session->Gina.Functions.WlxLogoff(Session->Gina.Context);
            }
            if (WLX_SHUTTINGDOWN(wlxAction))
            {
                // FIXME: WlxShutdown should be done from inside HandleShutdown,
                // after having displayed "ReactOS is shutting down" message.
                Session->Gina.Functions.WlxShutdown(Session->Gina.Context, wlxAction);
                if (!NT_SUCCESS(HandleShutdown(Session, wlxAction)))
                {
                    RemoveStatusMessage(Session);
                    Session->Gina.Functions.WlxDisplaySASNotice(Session->Gina.Context);
                }
            }
            else
            {
                RemoveStatusMessage(Session);
                Session->Gina.Functions.WlxDisplaySASNotice(Session->Gina.Context);
            }
            break;
        case WLX_SAS_ACTION_TASKLIST: /* 0x07 */
            SwitchDesktop(Session->ApplicationDesktop);
            Session->LogonState = STATE_LOGGED_ON;
            StartTaskManager(Session);
            break;
        case WLX_SAS_ACTION_UNLOCK_WKSTA: /* 0x08 */
            SwitchDesktop(Session->ApplicationDesktop);
            Session->LogonState = STATE_LOGGED_ON;
            CallNotificationDlls(Session, UnlockHandler);
            break;
        default:
            WARN("Unknown SAS action 0x%lx\n", wlxAction);
    }
}

Referenced by DispatchSAS(), and SASWindowProc().

HandleLogoff()

static NTSTATUS HandleLogoff ( IN OUT PWLSESSION  Session, IN UINT  Flags  )

static

Definition at line 896 of file sas.c.

{
    PLOGOFF_SHUTDOWN_DATA LSData;
    PSECURITY_ATTRIBUTES psa;
    HANDLE hThread;
    DWORD exitCode;
    NTSTATUS Status;

    /* Prepare data for logoff thread */
    LSData = HeapAlloc(GetProcessHeap(), 0, sizeof(LOGOFF_SHUTDOWN_DATA));
    if (!LSData)
    {
        ERR("Failed to allocate mem for thread data\n");
        return STATUS_NO_MEMORY;
    }
    LSData->Flags = Flags;
    LSData->Session = Session;

    Status = CreateLogoffSecurityAttributes(&psa);
    if (!NT_SUCCESS(Status))
    {
        ERR("Failed to create a required security descriptor. Status 0x%08lx\n", Status);
        HeapFree(GetProcessHeap(), 0, LSData);
        return Status;
    }

    /* Run logoff thread */
    hThread = CreateThread(psa, 0, LogoffShutdownThread, (LPVOID)LSData, 0, NULL);
    if (!hThread)
    {
        ERR("Unable to create logoff thread, error %lu\n", GetLastError());
        DestroyLogoffSecurityAttributes(psa);
        HeapFree(GetProcessHeap(), 0, LSData);
        return STATUS_UNSUCCESSFUL;
    }
    WaitForSingleObject(hThread, INFINITE);
    if (!GetExitCodeThread(hThread, &exitCode))
    {
        ERR("Unable to get exit code of logoff thread (error %lu)\n", GetLastError());
        CloseHandle(hThread);
        DestroyLogoffSecurityAttributes(psa);
        HeapFree(GetProcessHeap(), 0, LSData);
        return STATUS_UNSUCCESSFUL;
    }
    CloseHandle(hThread);
    if (exitCode == 0)
    {
        ERR("Logoff thread returned failure\n");
        DestroyLogoffSecurityAttributes(psa);
        HeapFree(GetProcessHeap(), 0, LSData);
        return STATUS_UNSUCCESSFUL;
    }

    SwitchDesktop(Session->WinlogonDesktop);

    // TODO: Play logoff sound!

    SetWindowStationUser(Session->InteractiveWindowStation,
                         &LuidNone, NULL, 0);

    // DisplayStatusMessage(Session, Session->WinlogonDesktop, IDS_LOGGINGOFF);

    // FIXME: Closing network connections!
    // DisplayStatusMessage(Session, Session->WinlogonDesktop, IDS_CLOSINGNETWORKCONNECTIONS);

    /* Kill remaining COM apps. Only at logoff! */
    hThread = CreateThread(psa, 0, KillComProcesses, (LPVOID)LSData, 0, NULL);
    if (hThread)
    {
        WaitForSingleObject(hThread, INFINITE);
        CloseHandle(hThread);
    }

    /* We're done with the SECURITY_DESCRIPTOR */
    DestroyLogoffSecurityAttributes(psa);
    psa = NULL;

    HeapFree(GetProcessHeap(), 0, LSData);

    DisplayStatusMessage(Session, Session->WinlogonDesktop, IDS_SAVEYOURSETTINGS);

    UnloadUserProfile(Session->UserToken, Session->hProfileInfo);

    CallNotificationDlls(Session, LogoffHandler);

    CloseHandle(Session->UserToken);
    UpdatePerUserSystemParameters(0, FALSE);
    Session->LogonState = STATE_LOGGED_OFF;
    Session->UserToken = NULL;

    return STATUS_SUCCESS;
}

Referenced by DoGenericAction().

HandleLogon()

static BOOL HandleLogon ( IN OUT PWLSESSION  Session )

static

Definition at line 578 of file sas.c.

{
    PROFILEINFOW ProfileInfo;
    BOOL ret = FALSE;

    /* Loading personal settings */
    DisplayStatusMessage(Session, Session->WinlogonDesktop, IDS_LOADINGYOURPERSONALSETTINGS);
    ProfileInfo.hProfile = INVALID_HANDLE_VALUE;
    if (0 == (Session->Options & WLX_LOGON_OPT_NO_PROFILE))
    {
        if (Session->Profile == NULL
         || (Session->Profile->dwType != WLX_PROFILE_TYPE_V1_0
          && Session->Profile->dwType != WLX_PROFILE_TYPE_V2_0))
        {
            ERR("WL: Wrong profile\n");
            goto cleanup;
        }

        /* Load the user profile */
        ZeroMemory(&ProfileInfo, sizeof(PROFILEINFOW));
        ProfileInfo.dwSize = sizeof(PROFILEINFOW);
        ProfileInfo.dwFlags = 0;
        ProfileInfo.lpUserName = Session->MprNotifyInfo.pszUserName;
        ProfileInfo.lpProfilePath = Session->Profile->pszProfile;
        if (Session->Profile->dwType >= WLX_PROFILE_TYPE_V2_0)
        {
            ProfileInfo.lpDefaultPath = Session->Profile->pszNetworkDefaultUserProfile;
            ProfileInfo.lpServerName = Session->Profile->pszServerName;
            ProfileInfo.lpPolicyPath = Session->Profile->pszPolicy;
        }

        if (!LoadUserProfileW(Session->UserToken, &ProfileInfo))
        {
            ERR("WL: LoadUserProfileW() failed\n");
            goto cleanup;
        }
    }

    /* Create environment block for the user */
    if (!CreateUserEnvironment(Session))
    {
        WARN("WL: SetUserEnvironment() failed\n");
        goto cleanup;
    }

    CallNotificationDlls(Session, LogonHandler);

    DisplayStatusMessage(Session, Session->WinlogonDesktop, IDS_APPLYINGYOURPERSONALSETTINGS);
    UpdatePerUserSystemParameters(0, TRUE);

    /* Set default user language */
    if (!SetDefaultLanguage(Session))
    {
        WARN("WL: SetDefaultLanguage() failed\n");
        goto cleanup;
    }

    AllowWinstaAccess(Session);

    /* Connect remote resources */
    RestoreAllConnections(Session);

    if (!StartUserShell(Session))
    {
        //WCHAR StatusMsg[256];
        WARN("WL: WlxActivateUserShell() failed\n");
        //LoadStringW(hAppInstance, IDS_FAILEDACTIVATEUSERSHELL, StatusMsg, sizeof(StatusMsg) / sizeof(StatusMsg[0]));
        //MessageBoxW(0, StatusMsg, NULL, MB_ICONERROR);
        goto cleanup;
    }

    CallNotificationDlls(Session, StartShellHandler);

    if (!InitializeScreenSaver(Session))
        WARN("WL: Failed to initialize screen saver\n");

    Session->hProfileInfo = ProfileInfo.hProfile;

    /* Logon has succeeded. Play sound. */
    PlayLogonSound(Session);

    ret = TRUE;

cleanup:
    if (Session->Profile)
    {
        HeapFree(GetProcessHeap(), 0, Session->Profile->pszProfile);
        HeapFree(GetProcessHeap(), 0, Session->Profile);
    }
    Session->Profile = NULL;
    if (!ret && ProfileInfo.hProfile != INVALID_HANDLE_VALUE)
    {
        UnloadUserProfile(Session->UserToken, ProfileInfo.hProfile);
    }
    RemoveStatusMessage(Session);
    if (!ret)
    {
        SetWindowStationUser(Session->InteractiveWindowStation,
                             &LuidNone, NULL, 0);
        CloseHandle(Session->UserToken);
        Session->UserToken = NULL;
    }

    if (ret)
    {
        SwitchDesktop(Session->ApplicationDesktop);
        Session->LogonState = STATE_LOGGED_ON;
    }

    return ret;
}

Referenced by DoGenericAction().

HandleMessageBeep()

BOOL WINAPI HandleMessageBeep

(

UINT

uType

)

Definition at line 1349 of file sas.c.

{
    LPWSTR EventName;

    switch(uType)
    {
    case 0xFFFFFFFF:
        EventName = NULL;
        break;
    case MB_OK:
        EventName = L"SystemDefault";
        break;
    case MB_ICONASTERISK:
        EventName = L"SystemAsterisk";
        break;
    case MB_ICONEXCLAMATION:
        EventName = L"SystemExclamation";
        break;
    case MB_ICONHAND:
        EventName = L"SystemHand";
        break;
    case MB_ICONQUESTION:
        EventName = L"SystemQuestion";
        break;
    default:
        WARN("Unhandled type %d\n", uType);
        EventName = L"SystemDefault";
    }

    return PlaySoundRoutine(EventName, FALSE, SND_ALIAS | SND_NOWAIT | SND_NOSTOP | SND_ASYNC);
}

Referenced by SASWindowProc().

HandleShutdown()

NTSTATUS HandleShutdown	(	IN OUT PWLSESSION	Session,
		IN DWORD	wlxAction
	)

Definition at line 1040 of file sas.c.

{
    PLOGOFF_SHUTDOWN_DATA LSData;
    HANDLE hThread;
    DWORD exitCode;
    BOOLEAN Old;

    // SwitchDesktop(Session->WinlogonDesktop);

    /* If the system is rebooting, show the appropriate string */
    if (wlxAction == WLX_SAS_ACTION_SHUTDOWN_REBOOT)
        DisplayStatusMessage(Session, Session->WinlogonDesktop, IDS_REACTOSISRESTARTING);
    else
        DisplayStatusMessage(Session, Session->WinlogonDesktop, IDS_REACTOSISSHUTTINGDOWN);

    /* Prepare data for shutdown thread */
    LSData = HeapAlloc(GetProcessHeap(), 0, sizeof(LOGOFF_SHUTDOWN_DATA));
    if (!LSData)
    {
        ERR("Failed to allocate mem for thread data\n");
        return STATUS_NO_MEMORY;
    }
    if (wlxAction == WLX_SAS_ACTION_SHUTDOWN_POWER_OFF)
        LSData->Flags = EWX_POWEROFF;
    else if (wlxAction == WLX_SAS_ACTION_SHUTDOWN_REBOOT)
        LSData->Flags = EWX_REBOOT;
    else
        LSData->Flags = EWX_SHUTDOWN;
    LSData->Session = Session;

    // FIXME: We may need to specify this flag to really force application kill
    // (we are shutting down ReactOS, not just logging off so no hangs, etc...
    // should be allowed).
    // LSData->Flags |= EWX_FORCE;

    /* Run shutdown thread */
    hThread = CreateThread(NULL, 0, LogoffShutdownThread, (LPVOID)LSData, 0, NULL);
    if (!hThread)
    {
        ERR("Unable to create shutdown thread, error %lu\n", GetLastError());
        HeapFree(GetProcessHeap(), 0, LSData);
        return STATUS_UNSUCCESSFUL;
    }
    WaitForSingleObject(hThread, INFINITE);
    HeapFree(GetProcessHeap(), 0, LSData);
    if (!GetExitCodeThread(hThread, &exitCode))
    {
        ERR("Unable to get exit code of shutdown thread (error %lu)\n", GetLastError());
        CloseHandle(hThread);
        return STATUS_UNSUCCESSFUL;
    }
    CloseHandle(hThread);
    if (exitCode == 0)
    {
        ERR("Shutdown thread returned failure\n");
        return STATUS_UNSUCCESSFUL;
    }

    CallNotificationDlls(Session, ShutdownHandler);

    /* Destroy SAS window */
    UninitializeSAS(Session);

    /* Now we can shut down NT */
    ERR("Shutting down NT...\n");
    RtlAdjustPrivilege(SE_SHUTDOWN_PRIVILEGE, TRUE, FALSE, &Old);
    if (wlxAction == WLX_SAS_ACTION_SHUTDOWN_REBOOT)
    {
        NtShutdownSystem(ShutdownReboot);
    }
    else
    {
        if (FALSE)
        {
            /* FIXME - only show this dialog if it's a shutdown and the computer doesn't support APM */
            DialogBox(hAppInstance, MAKEINTRESOURCE(IDD_SHUTDOWNCOMPUTER),
                      GetDesktopWindow(), ShutdownComputerWindowProc);
        }
        NtShutdownSystem(ShutdownNoReboot);
    }
    RtlAdjustPrivilege(SE_SHUTDOWN_PRIVILEGE, Old, FALSE, &Old);
    return STATUS_SUCCESS;
}

Referenced by DoGenericAction(), and WinMain().

InitializeSAS()

BOOL InitializeSAS

(

IN OUT PWLSESSION

Session

)

Definition at line 1584 of file sas.c.

{
    WNDCLASSEXW swc;
    BOOL ret = FALSE;

    if (!SwitchDesktop(Session->WinlogonDesktop))
    {
        ERR("WL: Failed to switch to winlogon desktop\n");
        goto cleanup;
    }

    /* Register SAS window class */
    swc.cbSize = sizeof(WNDCLASSEXW);
    swc.style = CS_SAVEBITS;
    swc.lpfnWndProc = SASWindowProc;
    swc.cbClsExtra = 0;
    swc.cbWndExtra = 0;
    swc.hInstance = hAppInstance;
    swc.hIcon = NULL;
    swc.hCursor = NULL;
    swc.hbrBackground = NULL;
    swc.lpszMenuName = NULL;
    swc.lpszClassName = WINLOGON_SAS_CLASS;
    swc.hIconSm = NULL;
    if (RegisterClassExW(&swc) == 0)
    {
        ERR("WL: Failed to register SAS window class\n");
        goto cleanup;
    }

    /* Create invisible SAS window */
    Session->SASWindow = CreateWindowExW(
        0,
        WINLOGON_SAS_CLASS,
        WINLOGON_SAS_TITLE,
        WS_POPUP,
        0, 0, 0, 0, 0, 0,
        hAppInstance, Session);
    if (!Session->SASWindow)
    {
        ERR("WL: Failed to create SAS window\n");
        goto cleanup;
    }

    /* Register SAS window to receive SAS notifications */
    if (!SetLogonNotifyWindow(Session->SASWindow))
    {
        ERR("WL: Failed to register SAS window\n");
        goto cleanup;
    }

    if (!SetDefaultLanguage(NULL))
        return FALSE;

    ret = TRUE;

cleanup:
    if (!ret)
        UninitializeSAS(Session);
    return ret;
}

Referenced by WinMain().

KillComProcesses()

static DWORD WINAPI KillComProcesses ( LPVOID  Parameter )

static

Definition at line 740 of file sas.c.

{
    DWORD ret = 1;
    PLOGOFF_SHUTDOWN_DATA LSData = (PLOGOFF_SHUTDOWN_DATA)Parameter;

    TRACE("In KillComProcesses\n");

    if (LSData->Session->UserToken != NULL &&
        !ImpersonateLoggedOnUser(LSData->Session->UserToken))
    {
        ERR("ImpersonateLoggedOnUser() failed with error %lu\n", GetLastError());
        return 0;
    }

    /* Attempt to kill remaining processes. No notifications needed. */
    if (!ExitWindowsEx(EWX_CALLER_WINLOGON | EWX_NONOTIFY | EWX_FORCE | EWX_LOGOFF, 0))
    {
        ERR("Unable to kill COM apps, error %lu\n", GetLastError());
        ret = 0;
    }

    if (LSData->Session->UserToken)
        RevertToSelf();

    return ret;
}

Referenced by HandleLogoff().

LogoffShutdownThread()

static DWORD WINAPI LogoffShutdownThread ( LPVOID  Parameter )

static

Definition at line 695 of file sas.c.

{
    DWORD ret = 1;
    PLOGOFF_SHUTDOWN_DATA LSData = (PLOGOFF_SHUTDOWN_DATA)Parameter;
    UINT uFlags;

    if (LSData->Session->UserToken != NULL &&
        !ImpersonateLoggedOnUser(LSData->Session->UserToken))
    {
        ERR("ImpersonateLoggedOnUser() failed with error %lu\n", GetLastError());
        return 0;
    }

    // FIXME: To be really fixed: need to check what needs to be kept and what needs to be removed there.
    //
    // uFlags = EWX_INTERNAL_KILL_USER_APPS | (LSData->Flags & EWX_FLAGS_MASK) |
             // ((LSData->Flags & EWX_ACTION_MASK) == EWX_LOGOFF ? EWX_CALLER_WINLOGON_LOGOFF : 0);

    uFlags = EWX_CALLER_WINLOGON | (LSData->Flags & 0x0F);

    TRACE("In LogoffShutdownThread with uFlags == 0x%x; exit_in_progress == %s\n",
        uFlags, ExitReactOSInProgress ? "true" : "false");

    ExitReactOSInProgress = TRUE;

    /* Close processes of the interactive user */
    if (!ExitWindowsEx(uFlags, 0))
    {
        ERR("Unable to kill user apps, error %lu\n", GetLastError());
        ret = 0;
    }

    /* Cancel all the user connections */
    WNetClearConnections(NULL);

    if (LSData->Session->UserToken)
        RevertToSelf();

    return ret;
}

Referenced by HandleLogoff(), and HandleShutdown().

PlayLogonSound()

static VOID PlayLogonSound ( IN OUT PWLSESSION  Session )

static

Definition at line 421 of file sas.c.

{
    HANDLE hThread;

    hThread = CreateThread(NULL, 0, PlayLogonSoundThread, (PVOID)Session->UserToken, 0, NULL);
    if (hThread)
        CloseHandle(hThread);
}

Referenced by HandleLogon().

PlayLogonSoundThread()

DWORD WINAPI PlayLogonSoundThread

(

IN LPVOID

lpParameter

)

Definition at line 284 of file sas.c.

{
    BYTE TokenUserBuffer[256];
    PTOKEN_USER pTokenUser = (TOKEN_USER*)TokenUserBuffer;
    ULONG Length;
    HKEY hKey;
    WCHAR wszBuffer[MAX_PATH] = {0};
    WCHAR wszDest[MAX_PATH];
    DWORD dwSize = sizeof(wszBuffer), dwType;
    SERVICE_STATUS_PROCESS Info;
    UNICODE_STRING SidString;
    NTSTATUS Status;
    ULONG Index = 0;
    SC_HANDLE hSCManager, hService;

    //
    // FIXME: Isn't it possible to *JUST* impersonate the current user
    // *AND* open its HKCU??
    //

    /* Get SID of current user */
    Status = NtQueryInformationToken((HANDLE)lpParameter,
                                     TokenUser,
                                     TokenUserBuffer,
                                     sizeof(TokenUserBuffer),
                                     &Length);
    if (!NT_SUCCESS(Status))
    {
        ERR("NtQueryInformationToken failed: %x!\n", Status);
        return 0;
    }

    /* Convert SID to string */
    RtlInitEmptyUnicodeString(&SidString, wszBuffer, sizeof(wszBuffer));
    Status = RtlConvertSidToUnicodeString(&SidString, pTokenUser->User.Sid, FALSE);
    if (!NT_SUCCESS(Status))
    {
        ERR("RtlConvertSidToUnicodeString failed: %x!\n", Status);
        return 0;
    }

    /* Build path to logon sound registry key.
       Note: We can't use HKCU here, because Winlogon is owned by SYSTEM user */
    if (FAILED(StringCbCopyW(wszBuffer + SidString.Length/sizeof(WCHAR),
                             sizeof(wszBuffer) - SidString.Length,
                             L"\\AppEvents\\Schemes\\Apps\\.Default\\WindowsLogon\\.Current")))
    {
        /* SID is too long. Should not happen. */
        ERR("StringCbCopyW failed!\n");
        return 0;
    }

    /* Open registry key and query sound path */
    if (RegOpenKeyExW(HKEY_USERS, wszBuffer, 0, KEY_READ, &hKey) != ERROR_SUCCESS)
    {
        ERR("RegOpenKeyExW(%ls) failed!\n", wszBuffer);
        return 0;
    }

    if (RegQueryValueExW(hKey, NULL, NULL, &dwType,
                      (LPBYTE)wszBuffer, &dwSize) != ERROR_SUCCESS ||
        (dwType != REG_SZ && dwType != REG_EXPAND_SZ))
    {
        ERR("RegQueryValueExW failed!\n");
        RegCloseKey(hKey);
        return 0;
    }

    RegCloseKey(hKey);

    if (!wszBuffer[0])
    {
        /* No sound has been set */
        ERR("No sound has been set\n");
        return 0;
    }

    /* Expand environment variables */
    if (!ExpandEnvironmentStringsW(wszBuffer, wszDest, MAX_PATH))
    {
        ERR("ExpandEnvironmentStringsW failed!\n");
        return 0;
    }

    /* Open the service manager */
    hSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_CONNECT);
    if (!hSCManager)
    {
        ERR("OpenSCManager failed (%x)\n", GetLastError());
        return 0;
    }

    /* Open the wdmaud service */
    hService = OpenServiceW(hSCManager, L"wdmaud", GENERIC_READ);
    if (!hService)
    {
        /* The service is not installed */
        TRACE("Failed to open wdmaud service (%x)\n", GetLastError());
        CloseServiceHandle(hSCManager);
        return 0;
    }

    /* Wait for wdmaud to start */
    do
    {
        if (!QueryServiceStatusEx(hService, SC_STATUS_PROCESS_INFO, (LPBYTE)&Info, sizeof(SERVICE_STATUS_PROCESS), &dwSize))
        {
            TRACE("QueryServiceStatusEx failed (%x)\n", GetLastError());
            break;
        }

        if (Info.dwCurrentState == SERVICE_RUNNING)
            break;

        Sleep(1000);

    } while (Index++ < 20);

    CloseServiceHandle(hService);
    CloseServiceHandle(hSCManager);

    /* If wdmaud is not running exit */
    if (Info.dwCurrentState != SERVICE_RUNNING)
    {
        WARN("wdmaud has not started!\n");
        return 0;
    }

    /* Sound subsystem is running. Play logon sound. */
    TRACE("Playing logon sound: %ls\n", wszDest);
    PlaySoundRoutine(wszDest, TRUE, SND_FILENAME);
    return 0;
}

Referenced by PlayLogonSound().

PlaySoundRoutine()

BOOL PlaySoundRoutine	(	IN LPCWSTR	FileName,
		IN UINT	bLogon,
		IN UINT	Flags
	)

Definition at line 240 of file sas.c.

{
    typedef BOOL (WINAPI *PLAYSOUNDW)(LPCWSTR,HMODULE,DWORD);
    typedef UINT (WINAPI *WAVEOUTGETNUMDEVS)(VOID);
    PLAYSOUNDW Play;
    WAVEOUTGETNUMDEVS waveOutGetNumDevs;
    UINT NumDevs;
    HMODULE hLibrary;
    BOOL Ret = FALSE;

    hLibrary = LoadLibraryW(L"winmm.dll");
    if (hLibrary)
    {
        waveOutGetNumDevs = (WAVEOUTGETNUMDEVS)GetProcAddress(hLibrary, "waveOutGetNumDevs");
        if (waveOutGetNumDevs)
        {
            NumDevs = waveOutGetNumDevs();
            if (!NumDevs)
            {
                if (!bLogon)
                {
                    Beep(500, 500);
                }
                FreeLibrary(hLibrary);
                return FALSE;
            }
        }

        Play = (PLAYSOUNDW)GetProcAddress(hLibrary, "PlaySoundW");
        if (Play)
        {
            Ret = Play(FileName, NULL, Flags);
        }
        FreeLibrary(hLibrary);
    }

    return Ret;
}

Referenced by HandleMessageBeep(), and PlayLogonSoundThread().

RegisterHotKeys()

static BOOL RegisterHotKeys ( IN PWLSESSION  Session, IN HWND  hwndSAS  )

static

Definition at line 1314 of file sas.c.

{
    /* Register Ctrl+Alt+Del Hotkey */
    if (!RegisterHotKey(hwndSAS, HK_CTRL_ALT_DEL, MOD_CONTROL | MOD_ALT, VK_DELETE))
    {
        ERR("WL: Unable to register Ctrl+Alt+Del hotkey!\n");
        return FALSE;
    }

    /* Register Ctrl+Shift+Esc (optional) */
    Session->TaskManHotkey = RegisterHotKey(hwndSAS, HK_CTRL_SHIFT_ESC, MOD_CONTROL | MOD_SHIFT, VK_ESCAPE);
    if (!Session->TaskManHotkey)
        WARN("WL: Warning: Unable to register Ctrl+Alt+Esc hotkey!\n");
    return TRUE;
}

Referenced by SASWindowProc().

RestoreAllConnections()

static VOID RestoreAllConnections ( PWLSESSION  Session )

static

Definition at line 514 of file sas.c.

{
    DWORD dRet;
    HANDLE hEnum;
    LPNETRESOURCE lpRes;
    DWORD dSize = 0x1000;
    DWORD dCount = -1;
    LPNETRESOURCE lpCur;
    BOOL UserProfile;

    UserProfile = (Session && Session->UserToken);
    if (!UserProfile)
    {
        return;
    }

    if (!ImpersonateLoggedOnUser(Session->UserToken))
    {
        ERR("WL: ImpersonateLoggedOnUser() failed with error %lu\n", GetLastError());
        return;
    }

    dRet = WNetOpenEnum(RESOURCE_REMEMBERED, RESOURCETYPE_DISK, 0, NULL, &hEnum);
    if (dRet != WN_SUCCESS)
    {
        ERR("Failed to open enumeration: %lu\n", dRet);
        goto quit;
    }

    lpRes = HeapAlloc(GetProcessHeap(), 0, dSize);
    if (!lpRes)
    {
        ERR("Failed to allocate memory\n");
        WNetCloseEnum(hEnum);
        goto quit;
    }

    do
    {
        dSize = 0x1000;
        dCount = -1;

        memset(lpRes, 0, dSize);
        dRet = WNetEnumResource(hEnum, &dCount, lpRes, &dSize);
        if (dRet == WN_SUCCESS || dRet == WN_MORE_DATA)
        {
            lpCur = lpRes;
            for (; dCount; dCount--)
            {
                WNetAddConnection(lpCur->lpRemoteName, NULL, lpCur->lpLocalName);
                lpCur++;
            }
        }
    } while (dRet != WN_NO_MORE_ENTRIES);

    HeapFree(GetProcessHeap(), 0, lpRes);
    WNetCloseEnum(hEnum);

quit:
    RevertToSelf();
}

Referenced by HandleLogon().

SASWindowProc()

static LRESULT CALLBACK SASWindowProc ( IN HWND  hwndDlg, IN UINT  uMsg, IN WPARAM  wParam, IN LPARAM  lParam  )

static

Definition at line 1384 of file sas.c.

{
    PWLSESSION Session = (PWLSESSION)GetWindowLongPtr(hwndDlg, GWLP_USERDATA);

    switch (uMsg)
    {
        case WM_HOTKEY:
        {
            switch (lParam)
            {
                case MAKELONG(MOD_CONTROL | MOD_ALT, VK_DELETE):
                {
                    TRACE("SAS: CONTROL+ALT+DELETE\n");
                    if (!Session->Gina.UseCtrlAltDelete)
                        break;
                    PostMessageW(Session->SASWindow, WLX_WM_SAS, WLX_SAS_TYPE_CTRL_ALT_DEL, 0);
                    return TRUE;
                }
                case MAKELONG(MOD_CONTROL | MOD_SHIFT, VK_ESCAPE):
                {
                    TRACE("SAS: CONTROL+SHIFT+ESCAPE\n");
                    if (Session->LogonState == STATE_LOGGED_ON)
                        DoGenericAction(Session, WLX_SAS_ACTION_TASKLIST);
                    return TRUE;
                }
            }
            break;
        }
        case WM_CREATE:
        {
            /* Get the session pointer from the create data */
            Session = (PWLSESSION)((LPCREATESTRUCT)lParam)->lpCreateParams;

            /* Save the Session pointer */
            SetWindowLongPtrW(hwndDlg, GWLP_USERDATA, (LONG_PTR)Session);
            if (GetSetupType())
                return TRUE;
            return RegisterHotKeys(Session, hwndDlg);
        }
        case WM_DESTROY:
        {
            if (!GetSetupType())
                UnregisterHotKeys(Session, hwndDlg);
            return TRUE;
        }
        case WM_SETTINGCHANGE:
        {
            UINT uiAction = (UINT)wParam;
            if (uiAction == SPI_SETSCREENSAVETIMEOUT
             || uiAction == SPI_SETSCREENSAVEACTIVE)
            {
                SetEvent(Session->hScreenSaverParametersChanged);
            }
            return TRUE;
        }
        case WM_LOGONNOTIFY:
        {
            switch(wParam)
            {
                case LN_MESSAGE_BEEP:
                {
                    return HandleMessageBeep(lParam);
                }
                case LN_SHELL_EXITED:
                {
                    /* lParam is the exit code */
                    if (lParam != 1 &&
                        Session->LogonState != STATE_LOGGED_OFF &&
                        Session->LogonState != STATE_LOGGED_OFF_SAS)
                    {
                        SetTimer(hwndDlg, 1, 1000, NULL);
                    }
                    break;
                }
                case LN_START_SCREENSAVE:
                {
                    DispatchSAS(Session, WLX_SAS_TYPE_SCRNSVR_TIMEOUT);
                    break;
                }
                case LN_LOCK_WORKSTATION:
                {
                    DoGenericAction(Session, WLX_SAS_ACTION_LOCK_WKSTA);
                    break;
                }
                case LN_LOGOFF:
                {
                    UINT Flags = (UINT)lParam;
                    UINT Action = Flags & EWX_ACTION_MASK;
                    DWORD wlxAction;

                    TRACE("\tFlags : 0x%lx\n", lParam);

                    /*
                     * Our caller (USERSRV) should have added the shutdown flag
                     * when setting also poweroff or reboot.
                     */
                    if (Action & (EWX_POWEROFF | EWX_REBOOT))
                    {
                        if ((Action & EWX_SHUTDOWN) == 0)
                        {
                            ERR("Missing EWX_SHUTDOWN flag for poweroff or reboot; action 0x%x\n", Action);
                            return STATUS_INVALID_PARAMETER;
                        }

                        /* Now we can locally remove it for performing checks */
                        Action &= ~EWX_SHUTDOWN;
                    }

                    /* Check parameters */
                    if (Action & EWX_FORCE)
                    {
                        // FIXME!
                        ERR("FIXME: EWX_FORCE present for Winlogon, what to do?\n");
                        Action &= ~EWX_FORCE;
                    }
                    switch (Action)
                    {
                        case EWX_LOGOFF:
                            wlxAction = WLX_SAS_ACTION_LOGOFF;
                            break;
                        case EWX_SHUTDOWN:
                            wlxAction = WLX_SAS_ACTION_SHUTDOWN;
                            break;
                        case EWX_REBOOT:
                            wlxAction = WLX_SAS_ACTION_SHUTDOWN_REBOOT;
                            break;
                        case EWX_POWEROFF:
                            wlxAction = WLX_SAS_ACTION_SHUTDOWN_POWER_OFF;
                            break;

                        default:
                        {
                            ERR("Invalid ExitWindows action 0x%x\n", Action);
                            return STATUS_INVALID_PARAMETER;
                        }
                    }

                    TRACE("In LN_LOGOFF, exit_in_progress == %s\n",
                        ExitReactOSInProgress ? "true" : "false");

                    /*
                     * In case a parallel shutdown request is done (while we are
                     * being to shut down) and it was not done by Winlogon itself,
                     * then just stop here.
                     */
#if 0
// This code is commented at the moment (even if it's correct) because
// our log-offs do not really work: the shell is restarted, no app is killed
// etc... and as a result you just get explorer opening "My Documents". And
// if you try now a shut down, it won't work because winlogon thinks it is
// still in the middle of a shutdown.
// Maybe we also need to reset ExitReactOSInProgress somewhere else??
                    if (ExitReactOSInProgress && (lParam & EWX_CALLER_WINLOGON) == 0)
                    {
                        break;
                    }
#endif
                    /* Now do the shutdown action proper */
                    DoGenericAction(Session, wlxAction);
                    return 1;
                }
                case LN_LOGOFF_CANCELED:
                {
                    ERR("Logoff canceled!!, before: exit_in_progress == %s, after will be false\n",
                        ExitReactOSInProgress ? "true" : "false");

                    ExitReactOSInProgress = FALSE;
                    return 1;
                }
                default:
                {
                    ERR("WM_LOGONNOTIFY case %d is unimplemented\n", wParam);
                }
            }
            return 0;
        }
        case WM_TIMER:
        {
            if (wParam == 1)
            {
                KillTimer(hwndDlg, 1);
                StartUserShell(Session);
            }
            break;
        }
        case WLX_WM_SAS:
        {
            DispatchSAS(Session, (DWORD)wParam);
            return TRUE;
        }
    }

    return DefWindowProc(hwndDlg, uMsg, wParam, lParam);
}

Referenced by InitializeSAS().

SetDefaultLanguage()

BOOL SetDefaultLanguage

(

IN PWLSESSION

Session

)

Definition at line 111 of file sas.c.

{
    BOOL ret = FALSE;
    BOOL UserProfile;
    LONG rc;
    HKEY UserKey, hKey = NULL;
    LPCWSTR SubKey, ValueName;
    DWORD dwType, dwSize;
    LPWSTR Value = NULL;
    UNICODE_STRING ValueString;
    NTSTATUS Status;
    LCID Lcid;

    UserProfile = (Session && Session->UserToken);

    if (UserProfile && !ImpersonateLoggedOnUser(Session->UserToken))
    {
        ERR("WL: ImpersonateLoggedOnUser() failed with error %lu\n", GetLastError());
        return FALSE;
        // FIXME: ... or use the default language of the system??
        // UserProfile = FALSE;
    }

    if (UserProfile)
    {
        rc = RegOpenCurrentUser(MAXIMUM_ALLOWED, &UserKey);
        if (rc != ERROR_SUCCESS)
        {
            TRACE("RegOpenCurrentUser() failed with error %lu\n", rc);
            goto cleanup;
        }

        SubKey = L"Control Panel\\International";
        ValueName = L"Locale";
    }
    else
    {
        UserKey = NULL;
        SubKey = L"System\\CurrentControlSet\\Control\\Nls\\Language";
        ValueName = L"Default";
    }

    rc = RegOpenKeyExW(UserKey ? UserKey : HKEY_LOCAL_MACHINE,
                       SubKey,
                       0,
                       KEY_READ,
                       &hKey);

    if (UserKey)
        RegCloseKey(UserKey);

    if (rc != ERROR_SUCCESS)
    {
        TRACE("RegOpenKeyEx() failed with error %lu\n", rc);
        goto cleanup;
    }

    rc = RegQueryValueExW(hKey,
                          ValueName,
                          NULL,
                          &dwType,
                          NULL,
                          &dwSize);
    if (rc != ERROR_SUCCESS)
    {
        TRACE("RegQueryValueEx() failed with error %lu\n", rc);
        goto cleanup;
    }
    else if (dwType != REG_SZ)
    {
        TRACE("Wrong type for %S\\%S registry entry (got 0x%lx, expected 0x%x)\n",
            SubKey, ValueName, dwType, REG_SZ);
        goto cleanup;
    }

    Value = HeapAlloc(GetProcessHeap(), 0, dwSize);
    if (!Value)
    {
        TRACE("HeapAlloc() failed\n");
        goto cleanup;
    }
    rc = RegQueryValueExW(hKey,
                          ValueName,
                          NULL,
                          NULL,
                          (LPBYTE)Value,
                          &dwSize);
    if (rc != ERROR_SUCCESS)
    {
        TRACE("RegQueryValueEx() failed with error %lu\n", rc);
        goto cleanup;
    }

    /* Convert Value to a Lcid */
    ValueString.Length = ValueString.MaximumLength = (USHORT)dwSize;
    ValueString.Buffer = Value;
    Status = RtlUnicodeStringToInteger(&ValueString, 16, (PULONG)&Lcid);
    if (!NT_SUCCESS(Status))
    {
        TRACE("RtlUnicodeStringToInteger() failed with status 0x%08lx\n", Status);
        goto cleanup;
    }

    TRACE("%s language is 0x%08lx\n",
        UserProfile ? "User" : "System", Lcid);
    Status = NtSetDefaultLocale(UserProfile, Lcid);
    if (!NT_SUCCESS(Status))
    {
        TRACE("NtSetDefaultLocale() failed with status 0x%08lx\n", Status);
        goto cleanup;
    }

    ret = TRUE;

cleanup:
    if (Value)
        HeapFree(GetProcessHeap(), 0, Value);

    if (hKey)
        RegCloseKey(hKey);

    if (UserProfile)
        RevertToSelf();

    return ret;
}

Referenced by HandleLogon(), and InitializeSAS().

ShutdownComputerWindowProc()

static INT_PTR CALLBACK ShutdownComputerWindowProc ( IN HWND  hwndDlg, IN UINT  uMsg, IN WPARAM  wParam, IN LPARAM  lParam  )

static

Definition at line 994 of file sas.c.

{
    UNREFERENCED_PARAMETER(lParam);

    switch (uMsg)
    {
        case WM_COMMAND:
        {
            switch (LOWORD(wParam))
            {
                case IDC_BTNSHTDOWNCOMPUTER:
                    EndDialog(hwndDlg, IDC_BTNSHTDOWNCOMPUTER);
                    return TRUE;
            }
            break;
        }
        case WM_INITDIALOG:
        {
            RemoveMenu(GetSystemMenu(hwndDlg, FALSE), SC_CLOSE, MF_BYCOMMAND);
            SetFocus(GetDlgItem(hwndDlg, IDC_BTNSHTDOWNCOMPUTER));
            return TRUE;
        }
    }
    return FALSE;
}

Referenced by HandleShutdown().

StartTaskManager()

static BOOL StartTaskManager ( IN OUT PWLSESSION  Session )

static

Definition at line 52 of file sas.c.

{
    LPVOID lpEnvironment;
    BOOL ret;

    if (!Session->Gina.Functions.WlxStartApplication)
        return FALSE;

    if (!CreateEnvironmentBlock(
        &lpEnvironment,
        Session->UserToken,
        TRUE))
    {
        return FALSE;
    }

    ret = Session->Gina.Functions.WlxStartApplication(
        Session->Gina.Context,
        L"Default",
        lpEnvironment,
        L"taskmgr.exe");

    DestroyEnvironmentBlock(lpEnvironment);
    return ret;
}

Referenced by DoGenericAction().

StartUserShell()

static BOOL StartUserShell ( IN OUT PWLSESSION  Session )

static

Definition at line 80 of file sas.c.

{
    LPVOID lpEnvironment = NULL;
    BOOLEAN Old;
    BOOL ret;

    /* Create environment block for the user */
    if (!CreateEnvironmentBlock(&lpEnvironment, Session->UserToken, TRUE))
    {
        WARN("WL: CreateEnvironmentBlock() failed\n");
        return FALSE;
    }

    /* Get privilege */
    /* FIXME: who should do it? winlogon or gina? */
    /* FIXME: reverting to lower privileges after creating user shell? */
    RtlAdjustPrivilege(SE_ASSIGNPRIMARYTOKEN_PRIVILEGE, TRUE, FALSE, &Old);

    ret = Session->Gina.Functions.WlxActivateUserShell(
                Session->Gina.Context,
                L"Default",
                NULL, /* FIXME */
                lpEnvironment);

    DestroyEnvironmentBlock(lpEnvironment);
    return ret;
}

Referenced by HandleLogon(), and SASWindowProc().

UninitializeSAS()

static VOID UninitializeSAS ( IN OUT PWLSESSION  Session )

static

Definition at line 1026 of file sas.c.

{
    if (Session->SASWindow)
    {
        DestroyWindow(Session->SASWindow);
        Session->SASWindow = NULL;
    }
    if (Session->hEndOfScreenSaverThread)
        SetEvent(Session->hEndOfScreenSaverThread);
    UnregisterClassW(WINLOGON_SAS_CLASS, hAppInstance);
}

Referenced by HandleShutdown(), and InitializeSAS().

UnregisterHotKeys()

static BOOL UnregisterHotKeys ( IN PWLSESSION  Session, IN HWND  hwndSAS  )

static

Definition at line 1334 of file sas.c.

{
    /* Unregister hotkeys */
    UnregisterHotKey(hwndSAS, HK_CTRL_ALT_DEL);

    if (Session->TaskManHotkey)
        UnregisterHotKey(hwndSAS, HK_CTRL_SHIFT_ESC);

    return TRUE;
}

Referenced by SASWindowProc().

Variable Documentation

ExitReactOSInProgress

BOOL ExitReactOSInProgress = FALSE

static

Definition at line 45 of file sas.c.

Referenced by LogoffShutdownThread(), and SASWindowProc().

LuidNone

LUID LuidNone = {0, 0}

Definition at line 47 of file sas.c.

Referenced by CreateWindowStationAndDesktops(), HandleLogoff(), HandleLogon(), and SetWindowStationUser().