651 lines
14 KiB
C
651 lines
14 KiB
C
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/*++
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Copyright (c) 2000, Microsoft Corporation
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Module Name:
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Abstract:
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Revision History:
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timmoore, sachins, May 19 2000, Created
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--*/
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#include "pcheapol.h"
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#pragma hdrstop
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LONG_PTR FAR PASCAL
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WndProc(
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HWND hWnd,
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unsigned message,
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WPARAM wParam,
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LPARAM lParam
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);
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#define TASK_BAR_CREATED L"TaskbarCreated"
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TCHAR EAPOLClassName[] = TEXT("EAPOLClass");
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UINT g_TaskbarCreated;
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HWND g_hWnd = 0;
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HINSTANCE g_hInstance;
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HANDLE g_UserToken;
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HWINSTA hWinStaUser = 0;
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HWINSTA hSaveWinSta = 0;
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HDESK hDeskUser = 0;
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HDESK hSaveDesk = 0;
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//
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// WindowInit
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//
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// Description:
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//
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// Function called create the taskbar used to detect user logon/logoff
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//
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// Arguments:
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//
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// Return values:
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// NO_ERROR - success
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// NON-zero - error
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//
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DWORD
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WindowInit ()
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{
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WNDCLASS Wc;
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DWORD dwRetCode = NO_ERROR;
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TRACE0 (ANY, "Came into WindowInit ========================\n");
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do
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{
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if ((g_TaskbarCreated = RegisterWindowMessage(TASK_BAR_CREATED))
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== 0)
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowInit: RegisterWindowMessage failed with error %ld\n",
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dwRetCode);
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break;
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}
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TRACE1 (ANY, "WindowInit: TaskbarCreated id = %ld",
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g_TaskbarCreated);
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// save current desktop and window station
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// so that it can be restored when we shutdown
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if ((hSaveWinSta = GetProcessWindowStation()) == NULL)
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowInit: GetProcessWindowStation failed with error %ld\n",
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dwRetCode);
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break;
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}
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if ((hSaveDesk = GetThreadDesktop(GetCurrentThreadId())) == NULL)
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowInit: GetThreadDesktop failed with error %ld\n",
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dwRetCode);
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break;
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}
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// Open the current user's window station and desktop
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if ((hWinStaUser = OpenWindowStation(L"WinSta0", FALSE, MAXIMUM_ALLOWED)) == NULL)
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowInit: OpenWindowStation failed with error %ld\n",
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dwRetCode);
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break;
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}
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if (!SetProcessWindowStation(hWinStaUser))
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowInit: SetProcessWindowStation failed with error %ld\n",
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dwRetCode);
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break;
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}
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else
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{
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TRACE0 (ANY, "WindowInit: SetProcessWindowStation succeeded\n");
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}
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if ((hDeskUser = OpenDesktop(L"Default", 0 , FALSE, MAXIMUM_ALLOWED))
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== NULL)
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowInit: OpenDesktop failed with error %ld\n",
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dwRetCode);
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break;
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}
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if (!SetThreadDesktop(hDeskUser))
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowInit: SetThreadDesktop failed with error %ld\n",
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dwRetCode);
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break;
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}
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else
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{
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TRACE0 (ANY, "WindowInit: SetThreadDesktop succeeded\n");
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}
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//
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// Register the class for the window
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//
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Wc.style = CS_NOCLOSE;
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Wc.cbClsExtra = 0;
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Wc.cbWndExtra = 0;
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Wc.hInstance = g_hInstance;
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Wc.hIcon = NULL;
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Wc.hCursor = NULL;
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Wc.hbrBackground = NULL;
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Wc.lpszMenuName = NULL;
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Wc.lpfnWndProc = WndProc;
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Wc.lpszClassName = EAPOLClassName;
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if (!RegisterClass(&Wc))
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowInit: RegisterClass failed with error %ld\n",
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dwRetCode);
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if (dwRetCode == ERROR_CLASS_ALREADY_EXISTS)
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{
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dwRetCode = NO_ERROR;
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}
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else
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{
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break;
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}
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}
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// Create the window that will receive the taskbar menu messages.
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// The window has to be created after opening the user's desktop
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if ((g_hWnd = CreateWindow(
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EAPOLClassName,
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L"EAPOLWindow",
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WS_OVERLAPPEDWINDOW,
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CW_USEDEFAULT,
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CW_USEDEFAULT,
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CW_USEDEFAULT,
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CW_USEDEFAULT,
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NULL,
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NULL,
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g_hInstance,
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NULL)) == NULL)
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowInit: CreateWindow failed with error %ld\n",
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dwRetCode);
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break;
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}
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// We don't care about the return value, since we just want it to
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// be hidden and it will always succeed
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ShowWindow(g_hWnd, SW_HIDE);
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if (!UpdateWindow(g_hWnd))
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowInit: UpdateWindow failed with error %ld\n",
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dwRetCode);
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break;
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}
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TRACE0 (ANY, "WindowInit: CreateWindow succeeded\n");
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} while (FALSE);
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// return dwRetCode;
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return NO_ERROR;
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}
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//
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// WindowShut
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//
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// Description:
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//
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// Function called to delete the task bar created to detect user logon/logoff
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//
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// Arguments:
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//
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// Return values:
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// NO_ERROR - success
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// NON-zero - error
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//
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DWORD
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WindowShut ()
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{
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DWORD dwRetCode = NO_ERROR;
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do
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{
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if (g_hWnd)
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{
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if (!DestroyWindow (g_hWnd))
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowShut: DestroyWindow failed with error %ld\n",
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dwRetCode);
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// log
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}
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}
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if (g_hInstance)
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{
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if (!UnregisterClass (
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EAPOLClassName,
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g_hInstance))
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowShut: UnregisterClass failed with error %ld\n",
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dwRetCode);
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// log
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}
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g_hInstance = NULL;
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}
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if (hDeskUser)
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{
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if (CloseDesktop(hDeskUser) == 0)
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowShut: CloseDesktop-hDeskUser failed with error %ld\n",
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dwRetCode);
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// log
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}
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hDeskUser = 0;
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}
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if (hWinStaUser)
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{
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if (CloseWindowStation(hWinStaUser) == 0)
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowShut: CloseWindowStation-hWinStaUser failed with error %ld\n",
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dwRetCode);
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// log
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}
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hWinStaUser = 0;
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}
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if (hSaveDesk)
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{
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if (!SetThreadDesktop(hSaveDesk))
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowShut: SetThreadDesktop failed with error %ld\n",
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dwRetCode);
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// log
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}
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if (hSaveWinSta)
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{
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if (SetProcessWindowStation(hSaveWinSta) == 0)
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{
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TRACE1 (ANY, "WindowShut: SetProcessWindowStation failed with error %ld\n",
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dwRetCode);
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dwRetCode = GetLastError ();
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// log
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}
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}
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if (CloseDesktop(hSaveDesk) == 0)
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowShut: CloseDesktop-hSaveDesk failed with error %ld\n",
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dwRetCode);
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// log
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}
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hSaveDesk = 0;
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if (hSaveWinSta)
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{
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if (CloseWindowStation(hSaveWinSta) == 0)
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{
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dwRetCode = GetLastError ();
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TRACE1 (ANY, "WindowShut: CloseWindowStation-hSaveWinSta failed with error %ld\n",
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dwRetCode);
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// log
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}
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hSaveWinSta = 0;
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}
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}
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} while (FALSE);
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return dwRetCode;
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}
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//
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// UserLogon
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//
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// Description:
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//
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// Function called to do processing when user logs on
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//
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// Arguments:
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//
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// Return values:
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// NO_ERROR - success
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// NON-zero - error
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//
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DWORD
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UserLogon ()
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{
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DWORD dwRetCode = NO_ERROR;
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TRACE0 (ANY, "Came into UserLogon ===================\n");
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do
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{
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#if 0
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ElUserLogonCallback (
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NULL,
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TRUE
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);
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TRACE0 (ANY, "UserLogon: ElUserLogonCallback completed");
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#endif
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} while (FALSE);
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return dwRetCode;
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}
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//
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// UserLogoff
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//
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// Description:
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//
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// Function called to do processing when user logs off
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//
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// Arguments:
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//
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// Return values:
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// NO_ERROR - success
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// NON-zero - error
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//
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DWORD
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UserLogoff ()
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{
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DWORD dwRetCode = NO_ERROR;
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TRACE0 (ANY, "Came into UserLogoff ===================\n");
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do
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{
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#if 0
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ElUserLogoffCallback (
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NULL,
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TRUE
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);
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TRACE0 (ANY, "UserLogoff: ElUserLogoffCallback completed");
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#endif
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} while (FALSE);
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return dwRetCode;
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}
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//
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// ElWaitOnEvent
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//
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// Description:
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//
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// Function called to wait on taskbar event changes
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//
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// Arguments:
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//
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// Return values:
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// NO_ERROR - success
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// NON-zero - error
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//
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DWORD
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ElWaitOnEvent ()
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{
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MSG Msg;
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HANDLE hEvents[1];
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BOOL fExitThread = FALSE;
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DWORD dwStatus = NO_ERROR;
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DWORD dwRetCode = NO_ERROR;
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// Check if 802.1X service has stopped
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// Exit if so
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if (( dwStatus = WaitForSingleObject (
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|
|
g_hEventTerminateEAPOL,
|
||
|
|
0)) == WAIT_FAILED)
|
||
|
|
{
|
||
|
|
dwRetCode = GetLastError ();
|
||
|
|
if ( g_dwTraceId != INVALID_TRACEID )
|
||
|
|
{
|
||
|
|
TRACE1 (INIT, "ElWaitOnEvent: WaitForSingleObject failed with error %ld, Terminating cleanup",
|
||
|
|
dwRetCode);
|
||
|
|
}
|
||
|
|
|
||
|
|
// log
|
||
|
|
|
||
|
|
return dwRetCode;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (dwStatus == WAIT_OBJECT_0)
|
||
|
|
{
|
||
|
|
if ( g_dwTraceId != INVALID_TRACEID )
|
||
|
|
{
|
||
|
|
dwRetCode = NO_ERROR;
|
||
|
|
TRACE0 (INIT, "ElWaitOnEvent: g_hEventTerminateEAPOL already signaled, returning");
|
||
|
|
}
|
||
|
|
return dwRetCode;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!g_dwMachineAuthEnabled)
|
||
|
|
{
|
||
|
|
if ((dwRetCode = UserLogon()) != NO_ERROR)
|
||
|
|
{
|
||
|
|
TRACE1 (ANY, "ElWaitOnEvent: UserLogon failed with error %ld",
|
||
|
|
dwRetCode);
|
||
|
|
return dwRetCode;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
do
|
||
|
|
{
|
||
|
|
do
|
||
|
|
{
|
||
|
|
hEvents[0] = g_hEventTerminateEAPOL;
|
||
|
|
|
||
|
|
dwStatus = MsgWaitForMultipleObjects(
|
||
|
|
1,
|
||
|
|
hEvents,
|
||
|
|
FALSE,
|
||
|
|
INFINITE,
|
||
|
|
QS_ALLINPUT | QS_ALLEVENTS | QS_ALLPOSTMESSAGE);
|
||
|
|
|
||
|
|
if (dwStatus == WAIT_FAILED)
|
||
|
|
{
|
||
|
|
dwRetCode = GetLastError ();
|
||
|
|
TRACE1 (ANY, "ElWaitOnEvent: MsgWaitForMultipleObjects failed with error %ld",
|
||
|
|
dwRetCode);
|
||
|
|
// log
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (dwStatus)
|
||
|
|
{
|
||
|
|
case WAIT_OBJECT_0:
|
||
|
|
// Service exit detected
|
||
|
|
fExitThread = TRUE;
|
||
|
|
TRACE0 (ANY, "ElWaitOnEvent: Service exit detected");
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
while (PeekMessage(&Msg, NULL, 0, 0, PM_REMOVE))
|
||
|
|
{
|
||
|
|
if (Msg.message == WM_QUIT)
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
TRACE3 (ANY, "ElWaitonEvent: Mesg %ld, wparam %lx, lparam %lx",
|
||
|
|
(DWORD)Msg.message, Msg.wParam, Msg.lParam);
|
||
|
|
if (!IsDialogMessage(g_hWnd, &Msg))
|
||
|
|
{
|
||
|
|
TranslateMessage(&Msg);
|
||
|
|
DispatchMessage(&Msg);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
} while (dwStatus != WAIT_OBJECT_0);
|
||
|
|
|
||
|
|
if ((dwRetCode != NO_ERROR) || (fExitThread))
|
||
|
|
{
|
||
|
|
TRACE0 (ANY, "ElWaitOnEvent: Exit wait loop");
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
} while (TRUE);
|
||
|
|
|
||
|
|
return dwRetCode;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// WndProc
|
||
|
|
//
|
||
|
|
// Description:
|
||
|
|
//
|
||
|
|
// Function called to process taskbar events
|
||
|
|
//
|
||
|
|
// Arguments:
|
||
|
|
//
|
||
|
|
// Return values:
|
||
|
|
//
|
||
|
|
|
||
|
|
LONG_PTR FAR PASCAL
|
||
|
|
WndProc (
|
||
|
|
IN HWND hWnd,
|
||
|
|
IN unsigned message,
|
||
|
|
IN WPARAM wParam,
|
||
|
|
IN LPARAM lParam
|
||
|
|
)
|
||
|
|
{
|
||
|
|
DWORD dwRetCode = NO_ERROR;
|
||
|
|
|
||
|
|
TRACE1 (ANY, "WndProc: Came into WndProc %ld", (DWORD)message );
|
||
|
|
|
||
|
|
switch (message)
|
||
|
|
{
|
||
|
|
case WM_ENDSESSION:
|
||
|
|
TRACE2 (ANY, "WndProc: Endsession (logoff) %x %x\n",
|
||
|
|
wParam, lParam);
|
||
|
|
if(wParam)
|
||
|
|
{
|
||
|
|
// Only user session logoff
|
||
|
|
if (lParam & ENDSESSION_LOGOFF)
|
||
|
|
{
|
||
|
|
if ((dwRetCode = UserLogoff()) != NO_ERROR)
|
||
|
|
{
|
||
|
|
TRACE1 (ANY, "WndProc: UserLogoff failed with error %ld",
|
||
|
|
dwRetCode);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
if (message == g_TaskbarCreated)
|
||
|
|
{
|
||
|
|
TRACE0 (ANY, "WndProc: Taskbar created (Logon)\n");
|
||
|
|
if ((dwRetCode = UserLogon()) != NO_ERROR)
|
||
|
|
{
|
||
|
|
TRACE1 (ANY, "WndProc: UserLogon failed with error %ld",
|
||
|
|
dwRetCode);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return (DefWindowProc(hWnd, message, wParam, lParam));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// ElUserLogonDetection
|
||
|
|
//
|
||
|
|
// Description:
|
||
|
|
//
|
||
|
|
// Function called to initialize module detecting user logon/logoff
|
||
|
|
//
|
||
|
|
// Arguments:
|
||
|
|
// pvContext - Unused
|
||
|
|
//
|
||
|
|
// Return values:
|
||
|
|
//
|
||
|
|
|
||
|
|
VOID
|
||
|
|
ElUserLogonDetection (
|
||
|
|
PVOID pvContext
|
||
|
|
)
|
||
|
|
{
|
||
|
|
DWORD dwRetCode = NO_ERROR;
|
||
|
|
|
||
|
|
do
|
||
|
|
{
|
||
|
|
|
||
|
|
if ((dwRetCode = WindowInit()) != NO_ERROR)
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
if ((dwRetCode = ElWaitOnEvent()) != NO_ERROR)
|
||
|
|
{
|
||
|
|
// no action
|
||
|
|
}
|
||
|
|
|
||
|
|
} while (FALSE);
|
||
|
|
|
||
|
|
dwRetCode = WindowShut();
|
||
|
|
|
||
|
|
if (dwRetCode != NO_ERROR)
|
||
|
|
{
|
||
|
|
TRACE1 (ANY, "ElUserLogonDetection: Error in processing = %ld",
|
||
|
|
dwRetCode);
|
||
|
|
// log
|
||
|
|
}
|
||
|
|
|
||
|
|
InterlockedDecrement (&g_lWorkerThreads);
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|