/*++ Copyright (c) 1994 Microsoft Corporation Module Name: Networks.c Abstract: functions that detect the presence of network services Author: Bob Watson (a-robw) Revision History: 23 Dec 94 --*/ #include #include #include #include #include #include #include #include "c2funcs.h" #include "c2funres.h" // define action codes here. They are only meaningful in the // context of this module. #define AC_NO_CHANGE 0 #define AC_SHOW_NCPA 1 static WCHAR wszNetwork[] = L"Network"; #define SECURE C2DLL_C2 static BOOL NetworkServicesFound ( ) { HKEY hkeySoftware; HKEY hkeyLevel1; HKEY hkeyLevel2; HKEY hkeyNetId; DWORD dwSwIndex; DWORD dwLevel1Index; LONG lStatus; LONG lBufLen; LONG lLevel1BufLen; TCHAR szSoftwareKeyNameBuffer [MAX_PATH]; TCHAR szLevel1KeyNameBuffer [MAX_PATH]; BOOL bReturn = FALSE; // open top key under root to begin search SET_WAIT_CURSOR; lStatus = RegOpenKeyEx ( HKEY_LOCAL_MACHINE, GetStringResource (GetDllInstance(), IDS_SOFTWARE_KEY), 0L, KEY_READ, &hkeySoftware); if (lStatus == ERROR_SUCCESS) { // // if top key opened, then search each sub-key under it for // network service entries // dwSwIndex = 0; lBufLen = MAX_PATH; while (RegEnumKeyEx(hkeySoftware, dwSwIndex, szSoftwareKeyNameBuffer, &lBufLen, NULL, NULL, NULL, NULL) == ERROR_SUCCESS) { // try to open this key lStatus = RegOpenKeyEx ( hkeySoftware, szSoftwareKeyNameBuffer, 0L, KEY_READ, &hkeyLevel1); if (lStatus == ERROR_SUCCESS) { // now enumerate the sub keys to this key and look for // network services dwLevel1Index = 0; lLevel1BufLen = MAX_PATH; while (RegEnumKeyEx(hkeyLevel1, dwLevel1Index, szLevel1KeyNameBuffer, &lLevel1BufLen, NULL, NULL, NULL, NULL) == ERROR_SUCCESS) { // try to open this key lStatus = RegOpenKeyEx ( hkeyLevel1, szLevel1KeyNameBuffer, 0L, KEY_READ, &hkeyLevel2); if (lStatus == ERROR_SUCCESS) { // now enumerate the sub keys to this key and look for // network services // if that worked, then try to open the "Find" key lStatus = RegOpenKeyEx ( hkeyLevel2, GetStringResource (GetDllInstance(), IDS_NETWORK_SERVICE_ID_KEY), 0L, KEY_READ, &hkeyNetId); if (lStatus == ERROR_SUCCESS){ // network service of some kind found bReturn = TRUE; RegCloseKey (hkeyNetId); break; } // end if network service ID key opened RegCloseKey (hkeyLevel2); } // end if Level 2 key opened dwLevel1Index++; lLevel1BufLen = MAX_PATH; } // end while enum level1 sub keys (level 2 keys) RegCloseKey (hkeyLevel1); } // end if Level 1 key opened if (bReturn) break; dwSwIndex++; lBufLen = MAX_PATH; } // end while enum Software subkeys (level 1 keys) RegCloseKey (hkeySoftware); SetLastError (ERROR_SUCCESS); } else { // end if software key opened SetLastError (lStatus); } SET_ARROW_CURSOR; return bReturn; } LONG C2QueryNetworkServices ( IN LPARAM lParam ) /*++ Routine Description: Function called to find out the current state of this configuration item. This function reads the current state of the item and sets the C2 Compliance flag and the Status string to reflect the current value of the configuration item. Arguments: Pointer to the Dll data block passed as an LPARAM. ReturnValue: ERROR_SUCCESS if the function succeeds otherwise a WIN32 error is returned if an error occurs --*/ { PC2DLL_DATA pC2Data; UINT nMsgId = 0; if (lParam != 0) { pC2Data = (PC2DLL_DATA)lParam; if (NetworkServicesFound()) { pC2Data->lC2Compliance = C2DLL_NOT_SECURE; nMsgId = IDS_NETWORK_SERVICE_FOUND; } else { pC2Data->lC2Compliance = SECURE; nMsgId = IDS_NETWORK_SERVICE_NOT_FOUND; } _stprintf (pC2Data->szStatusName, GetStringResource (GetDllInstance(), nMsgId)); return ERROR_SUCCESS; } else { return ERROR_BAD_ARGUMENTS; } } LONG C2SetNetworkServices ( IN LPARAM lParam ) /*++ Routine Description: Function called to change the current state of this configuration item based on an action code passed in the DLL data block. If this function successfully sets the state of the configuration item, then the C2 Compliance flag and the Status string to reflect the new value of the configuration item. Arguments: Pointer to the Dll data block passed as an LPARAM. ReturnValue: ERROR_SUCCESS if the function succeeds otherwise a WIN32 error is returned if an error occurs --*/ { #define MAX_CPL_DLGS 4 PC2DLL_DATA pC2Data; HINSTANCE hNcpaDll; APPLET_PROC CPlApplet; LONG lNcpaResult; LONG lDlgCount; LONG lDlgId; LONG lNetworksDlgId; UINT nMsgId; WNEWCPLINFO ncpaDlgInfo[MAX_CPL_DLGS]; if (lParam != 0) { pC2Data = (PC2DLL_DATA)lParam; if (pC2Data->lActionCode == AC_SHOW_NCPA) { SET_WAIT_CURSOR; // load NCPA DLL hNcpaDll = LoadLibrary ( GetStringResource (GetDllInstance(), IDS_NCPA_DLL)); if (hNcpaDll != NULL) { // look up Control Panel function CPlApplet = (APPLET_PROC)GetProcAddressT ((HMODULE)hNcpaDll, GetStringResource (GetDllInstance(), IDS_NCPA_CPL_APPLET)); if (CPlApplet != NULL) { // init control panel applet if ((*CPlApplet)(pC2Data->hWnd, CPL_INIT, 0, 0) != 0) { lDlgCount = (*CPlApplet)(pC2Data->hWnd, CPL_GETCOUNT, 0, 0); if (lDlgCount > MAX_CPL_DLGS) lDlgCount = MAX_CPL_DLGS; // set limit for (lDlgId = 0; lDlgId < lDlgCount; lDlgId++) { (*CPlApplet)(pC2Data->hWnd, CPL_NEWINQUIRE, lDlgId, (LONG)&ncpaDlgInfo[lDlgId]); if (lstrcmpW (ncpaDlgInfo[lDlgId].szName, wszNetwork) == 0) { lNetworksDlgId = lDlgId; } } // call Network dialog SET_ARROW_CURSOR; lNcpaResult = (*CPlApplet)(pC2Data->hWnd, CPL_DBLCLK, lNetworksDlgId, ncpaDlgInfo[lNetworksDlgId].lData); SET_WAIT_CURSOR; // update networking status if (NetworkServicesFound()) { pC2Data->lC2Compliance = C2DLL_NOT_SECURE; nMsgId = IDS_NETWORK_SERVICE_FOUND; } else { pC2Data->lC2Compliance = SECURE; nMsgId = IDS_NETWORK_SERVICE_NOT_FOUND; } _stprintf (pC2Data->szStatusName, GetStringResource (GetDllInstance(), nMsgId)); // close control panel dialogs and applet for (lDlgId = 1; lDlgId <= lDlgCount; lDlgId++) { (*CPlApplet)(pC2Data->hWnd, CPL_STOP, lDlgId, (LONG)&ncpaDlgInfo[lDlgId-1]); } (*CPlApplet)(pC2Data->hWnd, CPL_EXIT, 0, 0); } else { // Applet could not initialize DisplayDllMessageBox ( pC2Data->hWnd, IDS_NETWORK_ERROR_INIT_CPL, IDS_NETWORK_CAPTION, MBOK_EXCLAIM); } } else { // unable to find control panel entry point DisplayDllMessageBox ( pC2Data->hWnd, IDS_NETWORK_ERROR_FIND_CPL, IDS_NETWORK_CAPTION, MBOK_EXCLAIM); } // free DLL FreeLibrary (hNcpaDll); } else { // unable to load DLL DisplayDllMessageBox ( pC2Data->hWnd, IDS_NETWORK_ERROR_LOAD_DLL, IDS_NETWORK_CAPTION, MBOK_EXCLAIM); } SET_ARROW_CURSOR; } return ERROR_SUCCESS; } else { return ERROR_BAD_ARGUMENTS; } } LONG C2DisplayNetworkServices ( IN LPARAM lParam ) /*++ Routine Description: Function called to display more information on the configuration item and provide the user with the option to change the current setting (if appropriate). If the User "OK's" out of the UI, then the action code field in the DLL data block is set to the appropriate (and configuration item-specific) action code so the "Set" function can be called to perform the desired action. If the user Cancels out of the UI, then the Action code field is set to 0 (no action) and no action is performed. Arguments: Pointer to the Dll data block passed as an LPARAM. ReturnValue: ERROR_SUCCESS if the function succeeds otherwise a WIN32 error is returned if an error occurs --*/ { PC2DLL_DATA pC2Data; if (lParam != 0) { pC2Data = (PC2DLL_DATA)lParam; if (NetworkServicesFound()) { if (DisplayDllMessageBox ( pC2Data->hWnd, IDS_NETWORK_SHOW_NCPA, IDS_NETWORK_CAPTION, MBOKCANCEL_QUESTION) == IDOK){ pC2Data->lActionCode = AC_SHOW_NCPA; } else { pC2Data->lActionCode = AC_NO_CHANGE; } } else { DisplayDllMessageBox ( pC2Data->hWnd, IDS_NETWORK_SERVICE_NOT_FOUND, IDS_NETWORK_CAPTION, MBOK_INFO); pC2Data->lActionCode = AC_NO_CHANGE; } return ERROR_SUCCESS; } else { return ERROR_BAD_ARGUMENTS; } }