482 lines
12 KiB
C
482 lines
12 KiB
C
/*************** ************************************************************/
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// tsappcmp.c
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//
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// Copyright (C) 1997-1999 Microsoft Corp.
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/****************************************************************************/
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#include "precomp.h"
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#pragma hdrstop
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extern BOOL InitRegisterSupport();
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PWINSTATIONQUERYINFORMATIONW pWinStationQueryInformationW;
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BOOL GetDefaultUserProfileName(LPWSTR lpProfileDir, LPDWORD lpcchSize);
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extern WCHAR gpwszDefaultUserName[];
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extern void FreeLDRTable();
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DWORD g_dwFlags=0;
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/*
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* Read flags, if flags don't exit, then assume default behavior.
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* The default behavior is the same as dwFlags = 0x0
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* The default behavior will result is the loadlib func calls to be patched by our
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* redirected func TLoadLibraryExW().
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*
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*/
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void ReadImportTablePatchFLagsAndAppCompatMode( DWORD *pdwFlags, BOOLEAN *pInAppCompatMode )
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{
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NTSTATUS NtStatus;
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UNICODE_STRING KeyName;
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE KeyHandle;
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UCHAR Buffer[100];
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PKEY_VALUE_PARTIAL_INFORMATION KeyValueInformation = (PKEY_VALUE_PARTIAL_INFORMATION) Buffer;
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ULONG KeyValueLength = 100;
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ULONG ResultLength;
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*pdwFlags=0;
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*pInAppCompatMode=FALSE;
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RtlInitUnicodeString(
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&KeyName,
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L"\\Registry\\Machine\\System\\CurrentControlSet\\Control\\Terminal Server"
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);
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InitializeObjectAttributes(
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&ObjectAttributes,
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&KeyName,
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OBJ_CASE_INSENSITIVE,
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0,
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NULL
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);
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NtStatus = NtOpenKey(
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&KeyHandle,
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KEY_READ,
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&ObjectAttributes
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);
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if (!NT_SUCCESS(NtStatus)) {
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return; // so nothing found, just return since we do have a default behavior.
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}
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RtlInitUnicodeString(
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&KeyName,
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REG_TERMSRV_APPCOMPAT
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);
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NtStatus = NtQueryValueKey(
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KeyHandle,
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&KeyName,
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KeyValuePartialInformation,
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KeyValueInformation,
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KeyValueLength,
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&ResultLength
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);
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if (NT_SUCCESS(NtStatus))
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{
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//
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// Check that the data is the correct size and type - a DWORD.
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//
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if ((KeyValueInformation->DataLength >= sizeof(DWORD)) &&
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(KeyValueInformation->Type == REG_DWORD))
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{
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*pInAppCompatMode = * (PBOOLEAN) KeyValueInformation->Data;
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}
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}
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RtlInitUnicodeString(
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&KeyName,
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TERMSRV_COMPAT_IAT_FLAGS
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);
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NtStatus = NtQueryValueKey(
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KeyHandle,
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&KeyName,
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KeyValuePartialInformation,
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KeyValueInformation,
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KeyValueLength,
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&ResultLength
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);
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if (NT_SUCCESS(NtStatus))
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{
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//
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// Check that the data is the correct size and type - a DWORD.
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//
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if ((KeyValueInformation->DataLength >= sizeof(DWORD)) &&
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(KeyValueInformation->Type == REG_DWORD))
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{
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*pdwFlags = * (PDWORD) KeyValueInformation->Data;
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}
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}
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NtClose(KeyHandle);
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}
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BOOL WINAPI LibMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved)
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{
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static ULONG attachCount=0;
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static BOOLEAN inAppCompatMode=FALSE;
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switch (dwReason)
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{
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case DLL_PROCESS_ATTACH:
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{
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PWCHAR pwch, pwchext;
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WCHAR pwcAppName[MAX_PATH+1];
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PRTL_USER_PROCESS_PARAMETERS pUserParam;
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DWORD dwSize;
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attachCount++;
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ReadImportTablePatchFLagsAndAppCompatMode( &g_dwFlags , &inAppCompatMode ); // this will initialize our global flag for IAT and debug
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if ( g_dwFlags & DEBUG_IAT )
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{
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DbgPrint("tsappcmp: LibMain: DLL_PROCESS_ATTACH called, attach count = %d \n", attachCount );
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}
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if ( inAppCompatMode )
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{
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// Get the path of the executable name
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pUserParam = NtCurrentPeb()->ProcessParameters;
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// Get the executable name, if there's no \ just use the name as it is
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pwch = wcsrchr(pUserParam->ImagePathName.Buffer, L'\\');
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if (pwch) {
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pwch++;
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} else {
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pwch = pUserParam->ImagePathName.Buffer;
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}
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wcscpy(pwcAppName, pwch);
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pwch = pwcAppName;
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#if DBGX
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DbgPrint("\nApp-name : %ws\n", pwch );
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#endif
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// Check if it's a DOS or Win16 app by checking if the app is ntvdm.exe
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// Only disable ThreadLibrary calls if not ntvdm.
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if (_wcsicmp(pwch, L"ntvdm.exe")) {
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DisableThreadLibraryCalls (hInstance);
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}
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// Init support for the register command
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if (!InitRegisterSupport())
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{
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DbgPrint("TSAPPCMP: LibMain: DLL_PROCESS_ATTACH - failed\n");
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return FALSE;
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}
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dwSize = MAX_PATH;
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if (!GetDefaultUserProfileName(gpwszDefaultUserName, &dwSize)) {
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gpwszDefaultUserName[0] = L'\0';
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}
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}
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break;
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}
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case DLL_THREAD_ATTACH:
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break;
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case DLL_PROCESS_DETACH:
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{
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attachCount--;
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if ( g_dwFlags & DEBUG_IAT )
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{
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DbgPrint("tsappcmp: LibMain: DLL_PROCESS_DETACH called, attach count = %d \n", attachCount );
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}
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if (inAppCompatMode )
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{
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if (attachCount==0 )
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{
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FreeLDRTable();
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}
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}
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}
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break;
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}
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return TRUE;
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}
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PWCHAR TermsrvFormatObjectName(LPCWSTR OldName)
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{
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PWCHAR pstrNewObjName = NULL;
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#if 0
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SIZE_T Size;
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Size = ( wcslen(OldName) * sizeof(WCHAR)) + sizeof(L"Local\\") + sizeof(WCHAR);
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pstrNewObjName = RtlAllocateHeap(RtlProcessHeap(),
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LMEM_FIXED | LMEM_ZEROINIT,
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Size);
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if (pstrNewObjName) {
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swprintf(pstrNewObjName,L"Local\\%ws",OldName);
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}
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#endif
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return pstrNewObjName;
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}
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DWORD TermsrvGetComputerName( LPWSTR lpBuffer, LPDWORD nSize )
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{
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ULONG ulCompatFlags=0, ulAppType = 0;
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WINSTATIONINFORMATIONW WSInfo;
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ULONG ValueLength;
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HMODULE hwinsta = NULL;
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GetCtxAppCompatFlags(&ulCompatFlags, &ulAppType);
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// Return the username instead of the computername?
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if ((ulCompatFlags & TERMSRV_COMPAT_USERNAME) &&
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(ulCompatFlags & ulAppType)) {
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if ( !pWinStationQueryInformationW ) {
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/*
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* Get handle to winsta.dll
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*/
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if ( (hwinsta = LoadLibraryA( "WINSTA" )) != NULL ) {
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pWinStationQueryInformationW = (PWINSTATIONQUERYINFORMATIONW)
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GetProcAddress( hwinsta, "WinStationQueryInformationW" );
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}
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}
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// Fetch the WinStation's basic information
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if ( pWinStationQueryInformationW ) {
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if ( (*pWinStationQueryInformationW)(SERVERNAME_CURRENT,
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LOGONID_CURRENT,
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WinStationInformation,
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&WSInfo,
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sizeof(WSInfo),
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&ValueLength ) ) {
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// Check if username will fit in buffer
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if (wcslen(WSInfo.UserName) >= *nSize) {
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return ERROR_BUFFER_OVERFLOW;
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} else {
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wcscpy(lpBuffer, WSInfo.UserName);
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return ERROR_SUCCESS;
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}
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}
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}
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}
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return ERROR_RETRY;
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}
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void TermsrvAdjustPhyMemLimits (
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IN OUT LPDWORD TotalPhys,
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IN OUT LPDWORD AvailPhys,
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IN DWORD SysPageSize
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)
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{
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ULONG ulAppType = 0;
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DWORD PhysicalMemory;
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if ( GetCtxPhysMemoryLimits(&ulAppType, &PhysicalMemory) ) {
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if (*TotalPhys > PhysicalMemory ) {
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*TotalPhys = PhysicalMemory;
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}
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}
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if ( *AvailPhys > *TotalPhys ) {
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// Reset the Available Physical Memory to be smaller than the
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// Total Physical Memory. It is made smaller to avoid
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// possible divide by zero errors when Available and Total are
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// equal
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*AvailPhys = *TotalPhys - SysPageSize;
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}
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return;
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}
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UINT
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APIENTRY
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TermsrvGetWindowsDirectoryA(
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LPSTR lpBuffer,
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UINT uSize
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)
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{
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ANSI_STRING AnsiString;
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NTSTATUS Status;
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ULONG cbAnsiString;
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UNICODE_STRING Path;
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//
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// If in install mode return the system windows dir
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//
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if (TermsrvAppInstallMode()) {
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return 0;
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}
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if (!TermsrvPerUserWinDirMapping()) {
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return 0;
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}
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// if buffer looks real, then init it to zero
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if ( lpBuffer ) {
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*lpBuffer = '\0'; // in case we have an error, the shell folks want this to be null
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// BUG 453487
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}
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Path.Length = 0;
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Path.MaximumLength = (USHORT)(uSize * sizeof( WCHAR ));
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if ( Path.Buffer = LocalAlloc( LPTR, Path.MaximumLength ) ) {
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Status = GetPerUserWindowsDirectory( &Path );
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if ( NT_SUCCESS(Status) ) {
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AnsiString.MaximumLength = (USHORT)(uSize);
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AnsiString.Buffer = lpBuffer;
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Status = RtlUnicodeStringToAnsiString(
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&AnsiString,
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&Path,
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FALSE
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);
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} else if ( (Status == STATUS_BUFFER_TOO_SMALL) || (Status == STATUS_BUFFER_OVERFLOW ) ) {
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DbgPrint( "KERNEL32: GetWindowsDirectoryA: User buffer too small (%u) need(%u)\n",
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uSize, Path.Length >> 1 );
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return( Path.Length >> 1 );
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}
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LocalFree( Path.Buffer );
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} else {
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Status = STATUS_NO_MEMORY;
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DbgPrint( "KERNEL32: GetWindowsDirectoryA: No memory\n" );
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}
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if ( Status == STATUS_BUFFER_TOO_SMALL ) {
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DbgPrint( "KERNEL32: GetWindowsDirectoryA: User buffer too small (%u) need(%u)\n",
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uSize, Path.Length >> 1 );
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return( Path.Length >> 1 );
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} else if ( !NT_SUCCESS(Status) ) {
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return 0;
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}
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return AnsiString.Length;
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}
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UINT
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APIENTRY
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TermsrvGetWindowsDirectoryW(
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LPWSTR lpBuffer,
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UINT uSize
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)
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{
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UNICODE_STRING Path;
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NTSTATUS Status;
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//
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// If in install mode return the system windows dir
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//
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if (TermsrvAppInstallMode()) {
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return 0;
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}
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if (!TermsrvPerUserWinDirMapping()) {
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return 0;
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}
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// if buffer looks real, then init it to zero
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if ( lpBuffer ) {
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*lpBuffer = '\0'; // in case we have an error, the shell folks want this to be null
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// BUG 453487
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}
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/*
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* If it fails, return 0
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* If buffer too small, return len (not includding NULL)
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* If buffer ok, return len (not inc. NULL) and fill buffer
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* (GetPerUserWindowsDirectory will do all of this for us!)
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*/
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Path.Length = 0;
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Path.MaximumLength = (USHORT)(uSize * sizeof( WCHAR ));
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Path.Buffer = lpBuffer;
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Status = GetPerUserWindowsDirectory( &Path );
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if ( Status == STATUS_SUCCESS ) {
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/*
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* Add a NULL to the end (if it fits!)
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*/
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if ( Path.Length + sizeof( WCHAR ) <= Path.MaximumLength ) {
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lpBuffer[(Path.Length>>1)] = UNICODE_NULL;
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}
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}
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return( Path.Length / sizeof(WCHAR) );
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}
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