Source code of Windows XP (NT5)
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/*************************************************************************
*
* winset.c
*
* Window station set APS
*
* Copyright Microsoft Corporation, 1998
*
*
*************************************************************************/
/*
* Includes
*/
#include "precomp.h"
#pragma hdrstop
#include "conntfy.h" // for SetLockedState
/*
* External Procedures
*/
NTSTATUS xxxWinStationSetInformation( ULONG, WINSTATIONINFOCLASS,
PVOID, ULONG );
VOID _ReadUserProfile( PWCHAR, PWCHAR, PUSERCONFIG );
extern BOOL IsCallerSystem( VOID );
extern BOOL IsCallerAdmin( VOID );
/*
* Internal Procedures used
*/
NTSTATUS _SetConfig( PWINSTATION, PWINSTATIONCONFIG, ULONG );
NTSTATUS _SetPdParams( PWINSTATION, PPDPARAMS, ULONG );
NTSTATUS _SetBeep( PWINSTATION, PBEEPINPUT, ULONG );
NTSTATUS WinStationShadowChangeMode( PWINSTATION, PWINSTATIONSHADOW, ULONG );
NTSTATUS FlushVirtualInput( PWINSTATION, VIRTUALCHANNELCLASS, ULONG );
NTSTATUS
RpcCheckClientAccess(
PWINSTATION pWinStation,
ACCESS_MASK DesiredAccess,
BOOLEAN AlreadyImpersonating
);
NTSTATUS
CheckWireBuffer(WINSTATIONINFOCLASS InfoClass,
PVOID WireBuf,
ULONG WireBufLen,
PVOID *ppLocalBuf,
PULONG pLocalBufLen);
/*
* Global data
*/
typedef ULONG_PTR (*PFN)();
HMODULE ghNetApiDll = NULL;
PFN pNetGetAnyDCName = NULL;
PFN pNetApiBufferFree = NULL;
/*
* External data
*/
NTSTATUS
_CheckCallerLocalAndSystem()
/*++
Checking caller is calling from local and also is running
under system context
--*/
{
NTSTATUS Status;
BOOL bRevert = FALSE;
UINT LocalFlag;
Status = RpcImpersonateClient( NULL );
if( Status != RPC_S_OK ) {
DBGPRINT((" RpcImpersonateClient() failed : 0x%x\n",Status));
Status = STATUS_CANNOT_IMPERSONATE;
goto CLEANUPANDEXIT;
}
bRevert = TRUE;
//
// Inquire if local RPC call
//
Status = I_RpcBindingIsClientLocal(
0, // Active RPC call we are servicing
&LocalFlag
);
if( Status != RPC_S_OK ) {
DBGPRINT((" I_RpcBindingIsClientLocal() failed : 0x%x\n",Status));
Status = STATUS_ACCESS_DENIED;
goto CLEANUPANDEXIT;
}
if( !LocalFlag ) {
DBGPRINT((" Not a local client call\n"));
Status = STATUS_ACCESS_DENIED;
goto CLEANUPANDEXIT;
}
Status = (IsCallerSystem()) ? STATUS_SUCCESS : STATUS_ACCESS_DENIED;
CLEANUPANDEXIT:
if( TRUE == bRevert ) {
RpcRevertToSelf();
}
return Status;
}
/*******************************************************************************
*
* xxxWinStationSetInformation
*
* set window station information (worker routine)
*
* ENTRY:
* pWinStation (input)
* pointer to citrix window station structure
* WinStationInformationClass (input)
* Specifies the type of information to set at the specified window
* station object.
* pWinStationInformation (input)
* A pointer to a buffer that contains information to set for the
* specified window station. The format and contents of the buffer
* depend on the specified information class being set.
* WinStationInformationLength (input)
* Specifies the length in bytes of the window station information
* buffer.
*
* EXIT:
* STATUS_SUCCESS - no error
*
******************************************************************************/
NTSTATUS
xxxWinStationSetInformation( ULONG LogonId,
WINSTATIONINFOCLASS WinStationInformationClass,
PVOID pWinStationInformation,
ULONG WinStationInformationLength )
{
NTSTATUS Status = STATUS_SUCCESS;
PWINSTATION pWinStation;
ULONG cbReturned;
WINSTATION_APIMSG msg;
PWINSTATIONCONFIG pConfig;
ULONG ConfigLength;
PPDPARAMS pPdParams;
ULONG PdParamsLength;
RPC_STATUS RpcStatus;
TRACE((hTrace,TC_ICASRV,TT_API2,"TERMSRV: WinStationSetInformation LogonId=%d, Class=%d\n",
LogonId, (ULONG)WinStationInformationClass ));
/*
* Find the WinStation
* Return error if not found or currently terminating.
*/
pWinStation = FindWinStationById( LogonId, FALSE );
if ( !pWinStation )
return( STATUS_CTX_WINSTATION_NOT_FOUND );
if ( pWinStation->Terminating ) {
ReleaseWinStation( pWinStation );
return( STATUS_CTX_CLOSE_PENDING );
}
/*
* Verify that client has SET access
*/
Status = RpcCheckClientAccess( pWinStation, WINSTATION_SET, FALSE );
if ( !NT_SUCCESS( Status ) ) {
ReleaseWinStation( pWinStation );
return( Status );
}
switch ( WinStationInformationClass ) {
case WinStationPdParams :
Status = CheckWireBuffer(WinStationInformationClass,
pWinStationInformation,
WinStationInformationLength,
&pPdParams,
&PdParamsLength);
if ( !NT_SUCCESS(Status) ) {
break;
}
if ( pWinStation->hStack ) {
// Check for availability
if ( pWinStation->pWsx &&
pWinStation->pWsx->pWsxIcaStackIoControl ) {
Status = pWinStation->pWsx->pWsxIcaStackIoControl(
pWinStation->pWsxContext,
pWinStation->hIca,
pWinStation->hStack,
IOCTL_ICA_STACK_SET_PARAMS,
pPdParams,
PdParamsLength,
NULL,
0,
NULL );
}
else {
Status = STATUS_INVALID_INFO_CLASS;
}
}
LocalFree((PVOID)pPdParams);
break;
case WinStationConfiguration :
Status = CheckWireBuffer(WinStationInformationClass,
pWinStationInformation,
WinStationInformationLength,
&pConfig,
&ConfigLength);
if ( !NT_SUCCESS(Status) ) {
break;
}
Status = _SetConfig( pWinStation,
pConfig,
ConfigLength );
LocalFree((PVOID)pConfig);
break;
case WinStationTrace :
RpcStatus = RpcImpersonateClient( NULL );
if( RpcStatus != RPC_S_OK ) {
Status = STATUS_CANNOT_IMPERSONATE;
break;
}
if (!IsCallerAdmin() && !IsCallerSystem()) {
Status = STATUS_ACCESS_DENIED;
}
RpcRevertToSelf();
if (!NT_SUCCESS(Status)) {
break;
}
if ( WinStationInformationLength < sizeof(ICA_TRACE) ) {
Status = STATUS_BUFFER_TOO_SMALL;
break;
}
if ( pWinStation->hIca ) {
Status = IcaIoControl( pWinStation->hIca,
IOCTL_ICA_SET_TRACE,
pWinStationInformation,
WinStationInformationLength,
NULL,
0,
NULL );
}
break;
case WinStationSystemTrace :
RpcStatus = RpcImpersonateClient( NULL );
if( RpcStatus != RPC_S_OK ) {
Status = STATUS_CANNOT_IMPERSONATE;
break;
}
if (!IsCallerAdmin() && !IsCallerSystem()) {
Status = STATUS_ACCESS_DENIED;
}
RpcRevertToSelf();
if (!NT_SUCCESS(Status)) {
break;
}
if ( WinStationInformationLength < sizeof(ICA_TRACE) ) {
Status = STATUS_BUFFER_TOO_SMALL;
break;
}
/*
* Open ICA device driver
*/
if ( hTrace == NULL ) {
Status = IcaOpen( &hTrace );
if ( !NT_SUCCESS(Status) )
hTrace = NULL;
}
if ( hTrace ) {
Status = IcaIoControl( hTrace,
IOCTL_ICA_SET_SYSTEM_TRACE,
pWinStationInformation,
WinStationInformationLength,
NULL,
0,
NULL );
}
break;
case WinStationPrinter :
break;
case WinStationBeep :
if (WinStationInformationLength < sizeof(BEEPINPUT)) {
Status = STATUS_BUFFER_TOO_SMALL ;
break;
}
Status = _SetBeep( pWinStation,
(PBEEPINPUT) pWinStationInformation,
WinStationInformationLength );
break;
case WinStationEncryptionOff :
if ( pWinStation->hStack ) {
// Check for availability
if ( pWinStation->pWsx &&
pWinStation->pWsx->pWsxIcaStackIoControl ) {
Status = pWinStation->pWsx->pWsxIcaStackIoControl(
pWinStation->pWsxContext,
pWinStation->hIca,
pWinStation->hStack,
IOCTL_ICA_STACK_ENCRYPTION_OFF,
pWinStationInformation,
WinStationInformationLength,
NULL,
0,
NULL );
}
else {
Status = STATUS_INVALID_INFO_CLASS;
}
}
break;
case WinStationEncryptionPerm :
if ( pWinStation->hStack ) {
// Check for availability
if ( pWinStation->pWsx &&
pWinStation->pWsx->pWsxIcaStackIoControl ) {
Status = pWinStation->pWsx->pWsxIcaStackIoControl(
pWinStation->pWsxContext,
pWinStation->hIca,
pWinStation->hStack,
IOCTL_ICA_STACK_ENCRYPTION_PERM,
pWinStationInformation,
WinStationInformationLength,
NULL,
0,
NULL );
}
else {
Status = STATUS_INVALID_INFO_CLASS;
}
}
break;
case WinStationSecureDesktopEnter :
if ( pWinStation->hStack ) {
// Check for availability
if ( pWinStation->pWsx &&
pWinStation->pWsx->pWsxIcaStackIoControl ) {
Status = pWinStation->pWsx->pWsxIcaStackIoControl(
pWinStation->pWsxContext,
pWinStation->hIca,
pWinStation->hStack,
IOCTL_ICA_STACK_ENCRYPTION_ENTER,
pWinStationInformation,
WinStationInformationLength,
NULL,
0,
NULL );
}
else {
Status = STATUS_INVALID_INFO_CLASS;
}
}
break;
case WinStationSecureDesktopExit :
if ( pWinStation->hStack ) {
// Check for availability
if ( pWinStation->pWsx &&
pWinStation->pWsx->pWsxIcaStackIoControl ) {
Status = pWinStation->pWsx->pWsxIcaStackIoControl(
pWinStation->pWsxContext,
pWinStation->hIca,
pWinStation->hStack,
IOCTL_ICA_STACK_ENCRYPTION_EXIT,
pWinStationInformation,
WinStationInformationLength,
NULL,
0,
NULL );
}
else {
Status = STATUS_INVALID_INFO_CLASS;
}
}
break;
/*
* Give focus to winlogon security desktop
* -- used by progman.exe
*/
case WinStationNtSecurity :
/*
* Tell the WinStation to Send Winlogon the CTR-ALT-DEL message
*/
msg.ApiNumber = SMWinStationNtSecurity;
Status = SendWinStationCommand( pWinStation, &msg, 0 );
break;
case WinStationClientData :
//
// Handles multiple client data items. The data buffer
// format is:
// ULONG // Length of next data item
// WINSTATIONCLIENTDATA // Including variable length part
// ULONG // Length of next data item
// WINSTATIONCLIENTDATA // Including variable length part
// etc
//
// WinStationInformationLength is the length of the entire
// data buffer. Keep processing client data items until
// the buffer is exhausted.
//
if ( WinStationInformationLength < sizeof(ULONG) +
sizeof(WINSTATIONCLIENTDATA) )
{
Status = STATUS_INFO_LENGTH_MISMATCH;
break;
}
if ( pWinStation->hStack )
{
// Check for availability
if ( pWinStation->pWsx &&
pWinStation->pWsx->pWsxIcaStackIoControl )
{
ULONG CurLen;
ULONG LenUsed =0;
PBYTE CurPtr = (PBYTE)pWinStationInformation;
while (LenUsed + sizeof(ULONG) < WinStationInformationLength)
{
CurLen = *(ULONG UNALIGNED *)CurPtr;
LenUsed += sizeof(ULONG);
CurPtr += sizeof(ULONG);
if ( (LenUsed + CurLen >= LenUsed) &&
(LenUsed + CurLen <= WinStationInformationLength))
{
Status = pWinStation->pWsx->pWsxIcaStackIoControl(
pWinStation->pWsxContext,
pWinStation->hIca,
pWinStation->hStack,
IOCTL_ICA_STACK_SET_CLIENT_DATA,
CurPtr,
CurLen,
NULL,
0,
NULL );
LenUsed += CurLen;
CurPtr += CurLen;
}else
{
Status = STATUS_INVALID_USER_BUFFER;
break;
}
}
}
else
{
Status = STATUS_INVALID_INFO_CLASS;
}
}
break;
case WinStationInitialProgram :
/*
* Identify first program, non-consoles only
*/
if ( LogonId != 0 ) {
/*
* Tell the WinStation this is the initial program
*/
msg.ApiNumber = SMWinStationInitialProgram;
Status = SendWinStationCommand( pWinStation, &msg, 0 );
}
break;
case WinStationShadowInfo:
Status = _CheckCallerLocalAndSystem();
if( NT_SUCCESS(Status) ) {
Status = WinStationShadowChangeMode( pWinStation,
(PWINSTATIONSHADOW) pWinStationInformation,
WinStationInformationLength );
}
break;
case WinStationLockedState:
{
BOOL bLockedState;
if (WinStationInformationLength == sizeof(bLockedState))
{
bLockedState = * (LPBOOL) pWinStationInformation;
Status = SetLockedState (pWinStation, bLockedState);
}
else
{
Status = STATUS_INFO_LENGTH_MISMATCH;
}
break;
}
case WinStationDisallowAutoReconnect:
{
RpcStatus = RpcImpersonateClient( NULL );
if( RpcStatus != RPC_S_OK ) {
Status = STATUS_CANNOT_IMPERSONATE;
break;
}
if (!IsCallerSystem()) {
Status = STATUS_ACCESS_DENIED;
}
RpcRevertToSelf();
if (Status != STATUS_SUCCESS) {
break;
}
if (WinStationInformationLength == sizeof(BOOLEAN)) {
pWinStation->fDisallowAutoReconnect = * (PBOOLEAN) pWinStationInformation;
} else {
Status = STATUS_INFO_LENGTH_MISMATCH;
}
break;
}
case WinStationMprNotifyInfo:
{
Status = _CheckCallerLocalAndSystem();
if (Status != STATUS_SUCCESS) {
break;
}
if (WinStationInformationLength == sizeof(ExtendedClientCredentials)) {
pExtendedClientCredentials pMprInfo ;
pMprInfo = (pExtendedClientCredentials) pWinStationInformation;
wcsncpy(g_MprNotifyInfo.Domain, pMprInfo->Domain, EXTENDED_DOMAIN_LEN);
g_MprNotifyInfo.Domain[EXTENDED_DOMAIN_LEN] = L'\0';
wcsncpy(g_MprNotifyInfo.UserName, pMprInfo->UserName, EXTENDED_USERNAME_LEN);
g_MprNotifyInfo.UserName[EXTENDED_USERNAME_LEN] = L'\0';
wcsncpy(g_MprNotifyInfo.Password, pMprInfo->Password, EXTENDED_PASSWORD_LEN);
g_MprNotifyInfo.Password[EXTENDED_PASSWORD_LEN] = L'\0';
} else {
Status = STATUS_INFO_LENGTH_MISMATCH;
}
break;
}
default:
/*
* Fail the call
*/
Status = STATUS_INVALID_INFO_CLASS;
break;
}
ReleaseWinStation( pWinStation );
TRACE((hTrace,TC_ICASRV,TT_API2,"TERMSRV: WinStationSetInformation LogonId=%d, Class=%d, Status=0x%x\n",
LogonId, (ULONG)WinStationInformationClass, Status));
return( Status );
}
/*******************************************************************************
*
* _SetConfig
*
* set window station configuration
*
* ENTRY:
* pWinStation (input)
* pointer to citrix window station structure
* pConfig (input)
* pointer to configuration structure
* Length (input)
* length of configuration structure
*
* EXIT:
* STATUS_SUCCESS - no error
*
******************************************************************************/
NTSTATUS
_SetConfig( PWINSTATION pWinStation,
PWINSTATIONCONFIG pConfig,
ULONG Length )
{
USERCONFIG UserConfig;
/*
* Validate length
*/
if ( Length < sizeof(WINSTATIONCONFIG) )
return( STATUS_BUFFER_TOO_SMALL );
/*
* Copy structure
*/
pWinStation->Config.Config = *pConfig;
/*
* Merge client data into winstation structure
*/
if ( pWinStation->pWsx &&
pWinStation->pWsx->pWsxInitializeUserConfig ) {
pWinStation->pWsx->pWsxInitializeUserConfig( pWinStation->pWsxContext,
pWinStation->hStack,
pWinStation->hIcaThinwireChannel,
&pWinStation->Config.Config.User,
&pWinStation->Client.HRes,
&pWinStation->Client.VRes,
&pWinStation->Client.ColorDepth);
}
/*
* If user is logged on -> merge user profile data
*/
if ( pWinStation->UserName[0] ) {
/*
* Read user profile data
*/
_ReadUserProfile( pWinStation->Domain,
pWinStation->UserName,
&UserConfig );
#if NT2195
/*
* Merge user config data into the winstation
*/
MergeUserConfigData( pWinStation, &UserConfig );
#else
// @@@
DbgPrint(("WARNING: _SetConfig is if-def'd out \n" ) );
#endif
}
/*
* Convert any "published app" to absolute path
*/
if ( pWinStation->pWsx &&
pWinStation->pWsx->pWsxConvertPublishedApp ) {
(void) pWinStation->pWsx->pWsxConvertPublishedApp( pWinStation->pWsxContext,
&pWinStation->Config.Config.User);
}
return( STATUS_SUCCESS );
}
/*******************************************************************************
*
* _ReadUserProfile
*
* This routine reads the user profile data from the registry
*
* ENTRY:
* pDomain (input)
* domain of user
* pUserName (input)
* user name to read
* pUserConfig (output)
* address to return user profile data
*
* EXIT:
* None.
*
******************************************************************************/
VOID
_ReadUserProfile( PWCHAR pDomain, PWCHAR pUserName, PUSERCONFIG pUserConfig )
{
PWCHAR pServerName;
ULONG Length;
LONG Error;
/*
* Get Domain Controller name and userconfig data.
* If no userconfig data for user then get default values.
*/
if ( ghNetApiDll == NULL ) {
ghNetApiDll = LoadLibrary( L"NETAPI32" );
if ( ghNetApiDll ) {
pNetGetAnyDCName = GetProcAddress( ghNetApiDll, "NetGetAnyDCName" );
pNetApiBufferFree = GetProcAddress( ghNetApiDll, "NetApiBufferFree" );
}
}
/*
* Check to make sure we got a server name
*/
if ( pNetGetAnyDCName == NULL ||
pNetGetAnyDCName( NULL, pDomain, (LPBYTE *)&pServerName ) != ERROR_SUCCESS )
pServerName = NULL;
/*
* Read user profile data
*/
Error = RegUserConfigQuery( pServerName,
pUserName,
pUserConfig,
sizeof(USERCONFIG),
&Length );
TRACE((hTrace,TC_ICASRV,TT_API1, "RegUserConfigQuery: \\\\%S\\%S, server %S, Error=%u\n",
pDomain, pUserName, pServerName, Error ));
if ( Error != ERROR_SUCCESS ) {
Error = RegDefaultUserConfigQuery( pServerName, pUserConfig,
sizeof(USERCONFIG), &Length );
TRACE((hTrace,TC_ICASRV,TT_ERROR, "RegDefaultUserConfigQuery, Error=%u\n", Error ));
}
/*
* Free memory
*/
if ( pServerName && pNetApiBufferFree )
pNetApiBufferFree( pServerName );
}
/*******************************************************************************
*
* _SetBeep
*
* Beep the WinStation
*
* ENTRY:
* pWinStation (input)
* pointer to citrix window station structure
* pBeepInput (input)
* pointer to Beep input structure
* Length (input)
* length of Beep input structure
*
* EXIT:
* STATUS_SUCCESS - no error
*
******************************************************************************/
NTSTATUS
_SetBeep( PWINSTATION pWinStation,
PBEEPINPUT pBeepInput,
ULONG Length)
{
NTSTATUS Status = STATUS_SUCCESS;
BEEP_SET_PARAMETERS BeepParameters;
IO_STATUS_BLOCK IoStatus;
/*
* Do the regular Beep, so you can support fancy Beeps from
* sound cards.
*/
if ( pWinStation->LogonId == 0 ) {
if ( MessageBeep( pBeepInput->uType ) )
return( STATUS_SUCCESS );
else
return( STATUS_UNSUCCESSFUL );
}
BeepParameters.Frequency = 440;
BeepParameters.Duration = 125;
if ( pWinStation->hIcaBeepChannel ) {
Status = NtDeviceIoControlFile( pWinStation->hIcaBeepChannel,
NULL,
NULL,
NULL,
&IoStatus,
IOCTL_BEEP_SET,
&BeepParameters,
sizeof( BeepParameters ),
NULL,
0
);
}
return( STATUS_SUCCESS );
}