374 lines
11 KiB
C
374 lines
11 KiB
C
/*++
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Copyright (c) 1994 Microsoft Corporation
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Module Name:
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Networks.c
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Abstract:
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functions that detect the presence of network services
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Author:
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Bob Watson (a-robw)
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Revision History:
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23 Dec 94
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--*/
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#include <windows.h>
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#include <tchar.h>
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#include <cpl.h>
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#include <stdio.h>
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#include <c2dll.h>
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#include <c2inc.h>
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#include <c2utils.h>
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#include "c2funcs.h"
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#include "c2funres.h"
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// define action codes here. They are only meaningful in the
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// context of this module.
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#define AC_NO_CHANGE 0
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#define AC_SHOW_NCPA 1
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static WCHAR wszNetwork[] = L"Network";
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#define SECURE C2DLL_C2
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static
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BOOL
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NetworkServicesFound (
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)
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{
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HKEY hkeySoftware;
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HKEY hkeyLevel1;
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HKEY hkeyLevel2;
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HKEY hkeyNetId;
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DWORD dwSwIndex;
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DWORD dwLevel1Index;
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LONG lStatus;
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LONG lBufLen;
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LONG lLevel1BufLen;
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TCHAR szSoftwareKeyNameBuffer [MAX_PATH];
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TCHAR szLevel1KeyNameBuffer [MAX_PATH];
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BOOL bReturn = FALSE;
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// open top key under root to begin search
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SET_WAIT_CURSOR;
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lStatus = RegOpenKeyEx (
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HKEY_LOCAL_MACHINE,
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GetStringResource (GetDllInstance(), IDS_SOFTWARE_KEY),
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0L,
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KEY_READ,
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&hkeySoftware);
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if (lStatus == ERROR_SUCCESS) {
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//
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// if top key opened, then search each sub-key under it for
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// network service entries
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//
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dwSwIndex = 0;
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lBufLen = MAX_PATH;
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while (RegEnumKeyEx(hkeySoftware,
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dwSwIndex,
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szSoftwareKeyNameBuffer,
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&lBufLen,
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NULL,
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NULL,
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NULL,
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NULL) == ERROR_SUCCESS) {
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// try to open this key
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lStatus = RegOpenKeyEx (
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hkeySoftware,
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szSoftwareKeyNameBuffer,
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0L,
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KEY_READ,
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&hkeyLevel1);
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if (lStatus == ERROR_SUCCESS) {
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// now enumerate the sub keys to this key and look for
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// network services
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dwLevel1Index = 0;
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lLevel1BufLen = MAX_PATH;
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while (RegEnumKeyEx(hkeyLevel1,
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dwLevel1Index,
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szLevel1KeyNameBuffer,
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&lLevel1BufLen,
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NULL,
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NULL,
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NULL,
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NULL) == ERROR_SUCCESS) {
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// try to open this key
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lStatus = RegOpenKeyEx (
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hkeyLevel1,
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szLevel1KeyNameBuffer,
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0L,
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KEY_READ,
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&hkeyLevel2);
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if (lStatus == ERROR_SUCCESS) {
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// now enumerate the sub keys to this key and look for
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// network services
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// if that worked, then try to open the "Find" key
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lStatus = RegOpenKeyEx (
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hkeyLevel2,
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GetStringResource (GetDllInstance(), IDS_NETWORK_SERVICE_ID_KEY),
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0L,
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KEY_READ,
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&hkeyNetId);
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if (lStatus == ERROR_SUCCESS){
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// network service of some kind found
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bReturn = TRUE;
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RegCloseKey (hkeyNetId);
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break;
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} // end if network service ID key opened
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RegCloseKey (hkeyLevel2);
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} // end if Level 2 key opened
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dwLevel1Index++;
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lLevel1BufLen = MAX_PATH;
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} // end while enum level1 sub keys (level 2 keys)
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RegCloseKey (hkeyLevel1);
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} // end if Level 1 key opened
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if (bReturn) break;
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dwSwIndex++;
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lBufLen = MAX_PATH;
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} // end while enum Software subkeys (level 1 keys)
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RegCloseKey (hkeySoftware);
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SetLastError (ERROR_SUCCESS);
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} else { // end if software key opened
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SetLastError (lStatus);
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}
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SET_ARROW_CURSOR;
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return bReturn;
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}
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LONG
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C2QueryNetworkServices (
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IN LPARAM lParam
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)
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/*++
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Routine Description:
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Function called to find out the current state of this configuration
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item. This function reads the current state of the item and
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sets the C2 Compliance flag and the Status string to reflect
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the current value of the configuration item.
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Arguments:
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Pointer to the Dll data block passed as an LPARAM.
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ReturnValue:
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ERROR_SUCCESS if the function succeeds otherwise a
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WIN32 error is returned if an error occurs
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--*/
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{
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PC2DLL_DATA pC2Data;
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UINT nMsgId = 0;
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if (lParam != 0) {
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pC2Data = (PC2DLL_DATA)lParam;
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if (NetworkServicesFound()) {
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pC2Data->lC2Compliance = C2DLL_NOT_SECURE;
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nMsgId = IDS_NETWORK_SERVICE_FOUND;
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} else {
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pC2Data->lC2Compliance = SECURE;
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nMsgId = IDS_NETWORK_SERVICE_NOT_FOUND;
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}
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_stprintf (pC2Data->szStatusName,
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GetStringResource (GetDllInstance(), nMsgId));
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return ERROR_SUCCESS;
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} else {
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return ERROR_BAD_ARGUMENTS;
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}
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}
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LONG
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C2SetNetworkServices (
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IN LPARAM lParam
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)
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/*++
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Routine Description:
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Function called to change the current state of this configuration
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item based on an action code passed in the DLL data block. If
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this function successfully sets the state of the configuration
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item, then the C2 Compliance flag and the Status string to reflect
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the new value of the configuration item.
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Arguments:
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Pointer to the Dll data block passed as an LPARAM.
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ReturnValue:
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ERROR_SUCCESS if the function succeeds otherwise a
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WIN32 error is returned if an error occurs
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--*/
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{
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#define MAX_CPL_DLGS 4
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PC2DLL_DATA pC2Data;
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HINSTANCE hNcpaDll;
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APPLET_PROC CPlApplet;
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LONG lNcpaResult;
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LONG lDlgCount;
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LONG lDlgId;
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LONG lNetworksDlgId;
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UINT nMsgId;
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WNEWCPLINFO ncpaDlgInfo[MAX_CPL_DLGS];
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if (lParam != 0) {
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pC2Data = (PC2DLL_DATA)lParam;
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if (pC2Data->lActionCode == AC_SHOW_NCPA) {
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SET_WAIT_CURSOR;
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// load NCPA DLL
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hNcpaDll = LoadLibrary (
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GetStringResource (GetDllInstance(), IDS_NCPA_DLL));
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if (hNcpaDll != NULL) {
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// look up Control Panel function
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CPlApplet = (APPLET_PROC)GetProcAddressT ((HMODULE)hNcpaDll,
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GetStringResource (GetDllInstance(), IDS_NCPA_CPL_APPLET));
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if (CPlApplet != NULL) {
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// init control panel applet
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if ((*CPlApplet)(pC2Data->hWnd, CPL_INIT, 0, 0) != 0) {
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lDlgCount = (*CPlApplet)(pC2Data->hWnd, CPL_GETCOUNT, 0, 0);
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if (lDlgCount > MAX_CPL_DLGS) lDlgCount = MAX_CPL_DLGS; // set limit
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for (lDlgId = 0; lDlgId < lDlgCount; lDlgId++) {
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(*CPlApplet)(pC2Data->hWnd, CPL_NEWINQUIRE,
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lDlgId, (LONG)&ncpaDlgInfo[lDlgId]);
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if (lstrcmpW (ncpaDlgInfo[lDlgId].szName,
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wszNetwork) == 0) {
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lNetworksDlgId = lDlgId;
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}
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}
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// call Network dialog
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SET_ARROW_CURSOR;
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lNcpaResult = (*CPlApplet)(pC2Data->hWnd, CPL_DBLCLK,
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lNetworksDlgId, ncpaDlgInfo[lNetworksDlgId].lData);
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SET_WAIT_CURSOR;
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// update networking status
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if (NetworkServicesFound()) {
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pC2Data->lC2Compliance = C2DLL_NOT_SECURE;
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nMsgId = IDS_NETWORK_SERVICE_FOUND;
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} else {
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pC2Data->lC2Compliance = SECURE;
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nMsgId = IDS_NETWORK_SERVICE_NOT_FOUND;
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}
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_stprintf (pC2Data->szStatusName,
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GetStringResource (GetDllInstance(), nMsgId));
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// close control panel dialogs and applet
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for (lDlgId = 1; lDlgId <= lDlgCount; lDlgId++) {
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(*CPlApplet)(pC2Data->hWnd, CPL_STOP,
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lDlgId, (LONG)&ncpaDlgInfo[lDlgId-1]);
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}
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(*CPlApplet)(pC2Data->hWnd, CPL_EXIT, 0, 0);
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} else {
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// Applet could not initialize
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DisplayDllMessageBox (
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pC2Data->hWnd,
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IDS_NETWORK_ERROR_INIT_CPL,
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IDS_NETWORK_CAPTION,
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MBOK_EXCLAIM);
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}
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} else {
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// unable to find control panel entry point
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DisplayDllMessageBox (
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pC2Data->hWnd,
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IDS_NETWORK_ERROR_FIND_CPL,
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IDS_NETWORK_CAPTION,
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MBOK_EXCLAIM);
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}
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// free DLL
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FreeLibrary (hNcpaDll);
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} else {
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// unable to load DLL
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DisplayDllMessageBox (
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pC2Data->hWnd,
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IDS_NETWORK_ERROR_LOAD_DLL,
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IDS_NETWORK_CAPTION,
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MBOK_EXCLAIM);
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}
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SET_ARROW_CURSOR;
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}
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return ERROR_SUCCESS;
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} else {
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return ERROR_BAD_ARGUMENTS;
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}
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}
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LONG
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C2DisplayNetworkServices (
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IN LPARAM lParam
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)
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/*++
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Routine Description:
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Function called to display more information on the configuration
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item and provide the user with the option to change the current
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setting (if appropriate). If the User "OK's" out of the UI,
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then the action code field in the DLL data block is set to the
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appropriate (and configuration item-specific) action code so the
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"Set" function can be called to perform the desired action. If
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the user Cancels out of the UI, then the Action code field is
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set to 0 (no action) and no action is performed.
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Arguments:
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Pointer to the Dll data block passed as an LPARAM.
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ReturnValue:
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ERROR_SUCCESS if the function succeeds otherwise a
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WIN32 error is returned if an error occurs
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--*/
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{
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PC2DLL_DATA pC2Data;
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if (lParam != 0) {
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pC2Data = (PC2DLL_DATA)lParam;
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if (NetworkServicesFound()) {
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if (DisplayDllMessageBox (
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pC2Data->hWnd,
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IDS_NETWORK_SHOW_NCPA,
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IDS_NETWORK_CAPTION,
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MBOKCANCEL_QUESTION) == IDOK){
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pC2Data->lActionCode = AC_SHOW_NCPA;
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} else {
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pC2Data->lActionCode = AC_NO_CHANGE;
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}
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} else {
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DisplayDllMessageBox (
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pC2Data->hWnd,
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IDS_NETWORK_SERVICE_NOT_FOUND,
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IDS_NETWORK_CAPTION,
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MBOK_INFO);
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pC2Data->lActionCode = AC_NO_CHANGE;
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}
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return ERROR_SUCCESS;
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} else {
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return ERROR_BAD_ARGUMENTS;
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}
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}
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