446 lines
14 KiB
C
446 lines
14 KiB
C
/*
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* Window stations and desktops
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*
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* Copyright 2002 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winnls.h"
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#include "winerror.h"
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#include "wingdi.h"
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#include "winuser.h"
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#include "winternl.h"
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#include "ddk/wdm.h"
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#include "wine/server.h"
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#include "wine/debug.h"
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#include "user_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(winstation);
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/* callback for enumeration functions */
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struct enum_proc_lparam
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{
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NAMEENUMPROCA func;
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LPARAM lparam;
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};
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static BOOL CALLBACK enum_names_WtoA( LPWSTR name, LPARAM lparam )
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{
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struct enum_proc_lparam *data = (struct enum_proc_lparam *)lparam;
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char buffer[MAX_PATH];
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if (!WideCharToMultiByte( CP_ACP, 0, name, -1, buffer, sizeof(buffer), NULL, NULL ))
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return FALSE;
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return data->func( buffer, data->lparam );
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}
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/* return a handle to the directory where window station objects are created */
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static HANDLE get_winstations_dir_handle(void)
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{
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static HANDLE handle = NULL;
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WCHAR buffer[64];
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UNICODE_STRING str;
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OBJECT_ATTRIBUTES attr;
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if (!handle)
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{
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HANDLE dir;
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swprintf( buffer, ARRAY_SIZE(buffer), L"\\Sessions\\%u\\Windows\\WindowStations", NtCurrentTeb()->Peb->SessionId );
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RtlInitUnicodeString( &str, buffer );
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InitializeObjectAttributes( &attr, &str, 0, 0, NULL );
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NtOpenDirectoryObject( &dir, DIRECTORY_CREATE_OBJECT | DIRECTORY_TRAVERSE, &attr );
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if (InterlockedCompareExchangePointer( &handle, dir, 0 ) != 0) /* someone beat us here */
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CloseHandle( dir );
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}
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return handle;
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}
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static WCHAR default_name[29];
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static BOOL WINAPI winstation_default_name_once( INIT_ONCE *once, void *param, void **context )
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{
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TOKEN_STATISTICS stats;
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BOOL ret;
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ret = GetTokenInformation( GetCurrentProcessToken(), TokenStatistics, &stats, sizeof(stats), NULL );
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if (ret)
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swprintf( default_name, ARRAY_SIZE(default_name), L"Service-0x%x-%x$",
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stats.AuthenticationId.HighPart, stats.AuthenticationId.LowPart );
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return ret;
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}
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static const WCHAR *get_winstation_default_name( void )
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{
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static INIT_ONCE once = INIT_ONCE_STATIC_INIT;
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BOOL ret;
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ret = InitOnceExecuteOnce( &once, winstation_default_name_once, NULL, NULL );
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return ret ? default_name : NULL;
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}
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/***********************************************************************
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* CreateWindowStationA (USER32.@)
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*/
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HWINSTA WINAPI CreateWindowStationA( LPCSTR name, DWORD flags, ACCESS_MASK access,
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LPSECURITY_ATTRIBUTES sa )
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{
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WCHAR buffer[MAX_PATH];
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if (!name) return CreateWindowStationW( NULL, flags, access, sa );
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if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
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{
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SetLastError( ERROR_FILENAME_EXCED_RANGE );
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return 0;
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}
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return CreateWindowStationW( buffer, flags, access, sa );
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}
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/***********************************************************************
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* CreateWindowStationW (USER32.@)
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*/
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HWINSTA WINAPI CreateWindowStationW( LPCWSTR name, DWORD flags, ACCESS_MASK access,
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LPSECURITY_ATTRIBUTES sa )
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{
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OBJECT_ATTRIBUTES attr;
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UNICODE_STRING str;
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RtlInitUnicodeString( &str, name );
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if (!str.Length) RtlInitUnicodeString( &str, get_winstation_default_name() );
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InitializeObjectAttributes( &attr, &str, OBJ_CASE_INSENSITIVE,
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get_winstations_dir_handle(), sa );
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if (!(flags & CWF_CREATE_ONLY)) attr.Attributes |= OBJ_OPENIF;
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if (sa && sa->bInheritHandle) attr.Attributes |= OBJ_INHERIT;
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return NtUserCreateWindowStation( &attr, access, 0, 0, 0, 0, 0 );
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}
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/******************************************************************************
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* OpenWindowStationA (USER32.@)
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*/
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HWINSTA WINAPI OpenWindowStationA( LPCSTR name, BOOL inherit, ACCESS_MASK access )
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{
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WCHAR buffer[MAX_PATH];
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if (!name) return OpenWindowStationW( NULL, inherit, access );
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if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
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{
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SetLastError( ERROR_FILENAME_EXCED_RANGE );
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return 0;
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}
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return OpenWindowStationW( buffer, inherit, access );
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}
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/******************************************************************************
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* OpenWindowStationW (USER32.@)
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*/
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HWINSTA WINAPI OpenWindowStationW( LPCWSTR name, BOOL inherit, ACCESS_MASK access )
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{
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OBJECT_ATTRIBUTES attr;
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UNICODE_STRING str;
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RtlInitUnicodeString( &str, name );
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if (!str.Length) RtlInitUnicodeString( &str, get_winstation_default_name() );
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InitializeObjectAttributes( &attr, &str, OBJ_CASE_INSENSITIVE,
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get_winstations_dir_handle(), NULL );
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if (inherit) attr.Attributes |= OBJ_INHERIT;
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return NtUserOpenWindowStation( &attr, access );
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}
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/******************************************************************************
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* EnumWindowStationsA (USER32.@)
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*/
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BOOL WINAPI EnumWindowStationsA( WINSTAENUMPROCA func, LPARAM lparam )
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{
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struct enum_proc_lparam data;
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data.func = func;
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data.lparam = lparam;
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return EnumWindowStationsW( enum_names_WtoA, (LPARAM)&data );
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}
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/******************************************************************************
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* EnumWindowStationsW (USER32.@)
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*/
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BOOL WINAPI EnumWindowStationsW( WINSTAENUMPROCW func, LPARAM lparam )
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{
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unsigned int index = 0;
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WCHAR name[MAX_PATH];
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BOOL ret = TRUE;
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NTSTATUS status;
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while (ret)
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{
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SERVER_START_REQ( enum_winstation )
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{
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req->index = index;
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wine_server_set_reply( req, name, sizeof(name) - sizeof(WCHAR) );
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status = wine_server_call( req );
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name[wine_server_reply_size(reply)/sizeof(WCHAR)] = 0;
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index = reply->next;
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}
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SERVER_END_REQ;
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if (status == STATUS_NO_MORE_ENTRIES)
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break;
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if (status)
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{
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SetLastError( RtlNtStatusToDosError( status ) );
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return FALSE;
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}
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ret = func( name, lparam );
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}
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return ret;
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}
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/***********************************************************************
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* CreateDesktopA (USER32.@)
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*/
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HDESK WINAPI CreateDesktopA( LPCSTR name, LPCSTR device, LPDEVMODEA devmode,
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DWORD flags, ACCESS_MASK access, LPSECURITY_ATTRIBUTES sa )
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{
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WCHAR buffer[MAX_PATH];
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if (device || devmode)
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{
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SetLastError( ERROR_INVALID_PARAMETER );
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return 0;
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}
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if (!name) return CreateDesktopW( NULL, NULL, NULL, flags, access, sa );
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if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
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{
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SetLastError( ERROR_FILENAME_EXCED_RANGE );
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return 0;
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}
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return CreateDesktopW( buffer, NULL, NULL, flags, access, sa );
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}
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/***********************************************************************
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* CreateDesktopW (USER32.@)
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*/
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HDESK WINAPI CreateDesktopW( LPCWSTR name, LPCWSTR device, LPDEVMODEW devmode,
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DWORD flags, ACCESS_MASK access, LPSECURITY_ATTRIBUTES sa )
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{
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OBJECT_ATTRIBUTES attr;
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UNICODE_STRING str;
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if (device || devmode)
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{
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SetLastError( ERROR_INVALID_PARAMETER );
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return 0;
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}
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RtlInitUnicodeString( &str, name );
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InitializeObjectAttributes( &attr, &str, OBJ_CASE_INSENSITIVE | OBJ_OPENIF,
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get_winstations_dir_handle(), NULL );
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if (sa && sa->bInheritHandle) attr.Attributes |= OBJ_INHERIT;
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return NtUserCreateDesktopEx( &attr, NULL, devmode, flags, access, 0 );
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}
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/******************************************************************************
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* OpenDesktopA (USER32.@)
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*/
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HDESK WINAPI OpenDesktopA( LPCSTR name, DWORD flags, BOOL inherit, ACCESS_MASK access )
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{
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WCHAR buffer[MAX_PATH];
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if (!name) return OpenDesktopW( NULL, flags, inherit, access );
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if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
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{
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SetLastError( ERROR_FILENAME_EXCED_RANGE );
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return 0;
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}
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return OpenDesktopW( buffer, flags, inherit, access );
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}
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HDESK open_winstation_desktop( HWINSTA hwinsta, LPCWSTR name, DWORD flags, BOOL inherit, ACCESS_MASK access )
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{
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OBJECT_ATTRIBUTES attr;
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UNICODE_STRING str;
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RtlInitUnicodeString( &str, name );
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InitializeObjectAttributes( &attr, &str, OBJ_CASE_INSENSITIVE, hwinsta, NULL );
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if (inherit) attr.Attributes |= OBJ_INHERIT;
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return NtUserOpenDesktop( &attr, flags, access );
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}
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/******************************************************************************
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* OpenDesktopW (USER32.@)
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*/
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HDESK WINAPI OpenDesktopW( LPCWSTR name, DWORD flags, BOOL inherit, ACCESS_MASK access )
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{
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return open_winstation_desktop( NULL, name, flags, inherit, access );
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}
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/******************************************************************************
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* SetThreadDesktop (USER32.@)
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*/
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BOOL WINAPI SetThreadDesktop( HDESK handle )
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{
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BOOL ret = NtUserSetThreadDesktop( handle );
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if (ret) /* reset the desktop windows */
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{
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struct user_thread_info *thread_info = get_user_thread_info();
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struct user_key_state_info *key_state_info = thread_info->key_state;
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thread_info->top_window = 0;
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thread_info->msg_window = 0;
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if (key_state_info) key_state_info->time = 0;
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}
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return ret;
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}
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/******************************************************************************
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* EnumDesktopsA (USER32.@)
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*/
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BOOL WINAPI EnumDesktopsA( HWINSTA winsta, DESKTOPENUMPROCA func, LPARAM lparam )
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{
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struct enum_proc_lparam data;
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data.func = func;
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data.lparam = lparam;
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return EnumDesktopsW( winsta, enum_names_WtoA, (LPARAM)&data );
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}
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/******************************************************************************
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* EnumDesktopsW (USER32.@)
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*/
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BOOL WINAPI EnumDesktopsW( HWINSTA winsta, DESKTOPENUMPROCW func, LPARAM lparam )
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{
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unsigned int index = 0;
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WCHAR name[MAX_PATH];
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BOOL ret = TRUE;
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NTSTATUS status;
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if (!winsta)
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winsta = NtUserGetProcessWindowStation();
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while (ret)
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{
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SERVER_START_REQ( enum_desktop )
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{
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req->winstation = wine_server_obj_handle( winsta );
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req->index = index;
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wine_server_set_reply( req, name, sizeof(name) - sizeof(WCHAR) );
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status = wine_server_call( req );
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name[wine_server_reply_size(reply)/sizeof(WCHAR)] = 0;
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index = reply->next;
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}
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SERVER_END_REQ;
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if (status == STATUS_NO_MORE_ENTRIES)
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break;
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if (status)
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{
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SetLastError( RtlNtStatusToDosError( status ) );
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return FALSE;
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}
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ret = func(name, lparam);
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}
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return ret;
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}
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/***********************************************************************
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* GetUserObjectInformationA (USER32.@)
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*/
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BOOL WINAPI GetUserObjectInformationA( HANDLE handle, INT index, LPVOID info, DWORD len, LPDWORD needed )
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{
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/* check for information types returning strings */
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if (index == UOI_TYPE || index == UOI_NAME)
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{
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WCHAR buffer[MAX_PATH];
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DWORD lenA, lenW;
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if (!NtUserGetObjectInformation( handle, index, buffer, sizeof(buffer), &lenW )) return FALSE;
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lenA = WideCharToMultiByte( CP_ACP, 0, buffer, -1, NULL, 0, NULL, NULL );
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if (needed) *needed = lenA;
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if (lenA > len)
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{
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/* If the buffer length supplied by the caller is insufficient, Windows returns a
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'needed' length based upon the Unicode byte length, so we should do similarly. */
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if (needed) *needed = lenW;
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SetLastError( ERROR_INSUFFICIENT_BUFFER );
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return FALSE;
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}
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if (info) WideCharToMultiByte( CP_ACP, 0, buffer, -1, info, len, NULL, NULL );
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return TRUE;
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}
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return NtUserGetObjectInformation( handle, index, info, len, needed );
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}
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/******************************************************************************
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* SetUserObjectInformationA (USER32.@)
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*/
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BOOL WINAPI SetUserObjectInformationA( HANDLE handle, INT index, LPVOID info, DWORD len )
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{
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return NtUserSetObjectInformation( handle, index, info, len );
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}
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/***********************************************************************
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* GetUserObjectSecurity (USER32.@)
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*/
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BOOL WINAPI GetUserObjectSecurity( HANDLE handle, PSECURITY_INFORMATION info,
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PSECURITY_DESCRIPTOR sid, DWORD len, LPDWORD needed )
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{
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FIXME( "(%p %p %p len=%d %p),stub!\n", handle, info, sid, len, needed );
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if (needed)
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*needed = sizeof(SECURITY_DESCRIPTOR);
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if (len < sizeof(SECURITY_DESCRIPTOR))
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{
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SetLastError( ERROR_INSUFFICIENT_BUFFER );
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return FALSE;
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}
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return InitializeSecurityDescriptor(sid, SECURITY_DESCRIPTOR_REVISION);
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}
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/***********************************************************************
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* SetUserObjectSecurity (USER32.@)
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*/
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BOOL WINAPI SetUserObjectSecurity( HANDLE handle, PSECURITY_INFORMATION info,
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PSECURITY_DESCRIPTOR sid )
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{
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FIXME( "(%p,%p,%p),stub!\n", handle, info, sid );
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return TRUE;
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}
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