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wine-wine/dlls/user32/winstation.c

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/*
* Window stations and desktops
*
* Copyright 2002 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winerror.h"
#include "wingdi.h"
#include "winuser.h"
#include "winternl.h"
#include "ddk/wdm.h"
#include "wine/server.h"
#include "wine/unicode.h"
#include "wine/debug.h"
#include "user_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(winstation);
/* callback for enumeration functions */
struct enum_proc_lparam
{
NAMEENUMPROCA func;
LPARAM lparam;
};
static BOOL CALLBACK enum_names_WtoA( LPWSTR name, LPARAM lparam )
{
struct enum_proc_lparam *data = (struct enum_proc_lparam *)lparam;
char buffer[MAX_PATH];
if (!WideCharToMultiByte( CP_ACP, 0, name, -1, buffer, sizeof(buffer), NULL, NULL ))
return FALSE;
return data->func( buffer, data->lparam );
}
/* return a handle to the directory where window station objects are created */
static HANDLE get_winstations_dir_handle(void)
{
static HANDLE handle = NULL;
static const WCHAR basenameW[] = {'\\','S','e','s','s','i','o','n','s','\\','%','u',
'\\','W','i','n','d','o','w','s','\\',
'W','i','n','d','o','w','S','t','a','t','i','o','n','s',0};
WCHAR buffer[64];
UNICODE_STRING str;
OBJECT_ATTRIBUTES attr;
if (!handle)
{
HANDLE dir;
sprintfW( buffer, basenameW, NtCurrentTeb()->Peb->SessionId );
RtlInitUnicodeString( &str, buffer );
InitializeObjectAttributes( &attr, &str, 0, 0, NULL );
NtOpenDirectoryObject( &dir, DIRECTORY_CREATE_OBJECT | DIRECTORY_TRAVERSE, &attr );
if (InterlockedCompareExchangePointer( &handle, dir, 0 ) != 0) /* someone beat us here */
CloseHandle( dir );
}
return handle;
}
/***********************************************************************
* CreateWindowStationA (USER32.@)
*/
HWINSTA WINAPI CreateWindowStationA( LPCSTR name, DWORD flags, ACCESS_MASK access,
LPSECURITY_ATTRIBUTES sa )
{
WCHAR buffer[MAX_PATH];
if (!name) return CreateWindowStationW( NULL, flags, access, sa );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return CreateWindowStationW( buffer, flags, access, sa );
}
/***********************************************************************
* CreateWindowStationW (USER32.@)
*/
HWINSTA WINAPI CreateWindowStationW( LPCWSTR name, DWORD flags, ACCESS_MASK access,
LPSECURITY_ATTRIBUTES sa )
{
HANDLE ret;
DWORD len = name ? strlenW(name) : 0;
if (len >= MAX_PATH)
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
SERVER_START_REQ( create_winstation )
{
req->flags = 0;
req->access = access;
req->attributes = OBJ_CASE_INSENSITIVE |
((flags & CWF_CREATE_ONLY) ? 0 : OBJ_OPENIF) |
((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
req->rootdir = wine_server_obj_handle( get_winstations_dir_handle() );
wine_server_add_data( req, name, len * sizeof(WCHAR) );
wine_server_call_err( req );
ret = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* OpenWindowStationA (USER32.@)
*/
HWINSTA WINAPI OpenWindowStationA( LPCSTR name, BOOL inherit, ACCESS_MASK access )
{
WCHAR buffer[MAX_PATH];
if (!name) return OpenWindowStationW( NULL, inherit, access );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return OpenWindowStationW( buffer, inherit, access );
}
/******************************************************************************
* OpenWindowStationW (USER32.@)
*/
HWINSTA WINAPI OpenWindowStationW( LPCWSTR name, BOOL inherit, ACCESS_MASK access )
{
HANDLE ret = 0;
DWORD len = name ? strlenW(name) : 0;
if (len >= MAX_PATH)
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
SERVER_START_REQ( open_winstation )
{
req->access = access;
req->attributes = OBJ_CASE_INSENSITIVE | (inherit ? OBJ_INHERIT : 0);
req->rootdir = wine_server_obj_handle( get_winstations_dir_handle() );
wine_server_add_data( req, name, len * sizeof(WCHAR) );
if (!wine_server_call_err( req )) ret = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* CloseWindowStation (USER32.@)
*/
BOOL WINAPI CloseWindowStation( HWINSTA handle )
{
BOOL ret;
SERVER_START_REQ( close_winstation )
{
req->handle = wine_server_obj_handle( handle );
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* GetProcessWindowStation (USER32.@)
*/
HWINSTA WINAPI GetProcessWindowStation(void)
{
HWINSTA ret = 0;
SERVER_START_REQ( get_process_winstation )
{
if (!wine_server_call_err( req ))
ret = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* SetProcessWindowStation (USER32.@)
*/
BOOL WINAPI SetProcessWindowStation( HWINSTA handle )
{
BOOL ret;
SERVER_START_REQ( set_process_winstation )
{
req->handle = wine_server_obj_handle( handle );
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* EnumWindowStationsA (USER32.@)
*/
BOOL WINAPI EnumWindowStationsA( WINSTAENUMPROCA func, LPARAM lparam )
{
struct enum_proc_lparam data;
data.func = func;
data.lparam = lparam;
return EnumWindowStationsW( enum_names_WtoA, (LPARAM)&data );
}
/******************************************************************************
* EnumWindowStationsW (USER32.@)
*/
BOOL WINAPI EnumWindowStationsW( WINSTAENUMPROCW func, LPARAM lparam )
{
unsigned int index = 0;
WCHAR name[MAX_PATH];
BOOL ret = TRUE;
NTSTATUS status;
while (ret)
{
SERVER_START_REQ( enum_winstation )
{
req->index = index;
wine_server_set_reply( req, name, sizeof(name) - sizeof(WCHAR) );
status = wine_server_call( req );
name[wine_server_reply_size(reply)/sizeof(WCHAR)] = 0;
index = reply->next;
}
SERVER_END_REQ;
if (status == STATUS_NO_MORE_ENTRIES)
break;
if (status)
{
SetLastError( RtlNtStatusToDosError( status ) );
return FALSE;
}
ret = func( name, lparam );
}
return ret;
}
/***********************************************************************
* CreateDesktopA (USER32.@)
*/
HDESK WINAPI CreateDesktopA( LPCSTR name, LPCSTR device, LPDEVMODEA devmode,
DWORD flags, ACCESS_MASK access, LPSECURITY_ATTRIBUTES sa )
{
WCHAR buffer[MAX_PATH];
if (device || devmode)
{
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
if (!name) return CreateDesktopW( NULL, NULL, NULL, flags, access, sa );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return CreateDesktopW( buffer, NULL, NULL, flags, access, sa );
}
/***********************************************************************
* CreateDesktopW (USER32.@)
*/
HDESK WINAPI CreateDesktopW( LPCWSTR name, LPCWSTR device, LPDEVMODEW devmode,
DWORD flags, ACCESS_MASK access, LPSECURITY_ATTRIBUTES sa )
{
HANDLE ret;
DWORD len = name ? strlenW(name) : 0;
if (device || devmode)
{
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
if (len >= MAX_PATH)
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
SERVER_START_REQ( create_desktop )
{
req->flags = flags;
req->access = access;
req->attributes = OBJ_CASE_INSENSITIVE | OBJ_OPENIF |
((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
wine_server_add_data( req, name, len * sizeof(WCHAR) );
wine_server_call_err( req );
ret = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* OpenDesktopA (USER32.@)
*/
HDESK WINAPI OpenDesktopA( LPCSTR name, DWORD flags, BOOL inherit, ACCESS_MASK access )
{
WCHAR buffer[MAX_PATH];
if (!name) return OpenDesktopW( NULL, flags, inherit, access );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return OpenDesktopW( buffer, flags, inherit, access );
}
HDESK open_winstation_desktop( HWINSTA hwinsta, LPCWSTR name, DWORD flags, BOOL inherit, ACCESS_MASK access )
{
HANDLE ret = 0;
DWORD len = name ? strlenW(name) : 0;
if (len >= MAX_PATH)
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
SERVER_START_REQ( open_desktop )
{
req->winsta = wine_server_obj_handle( hwinsta );
req->flags = flags;
req->access = access;
req->attributes = OBJ_CASE_INSENSITIVE | (inherit ? OBJ_INHERIT : 0);
wine_server_add_data( req, name, len * sizeof(WCHAR) );
if (!wine_server_call_err( req )) ret = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* OpenDesktopW (USER32.@)
*/
HDESK WINAPI OpenDesktopW( LPCWSTR name, DWORD flags, BOOL inherit, ACCESS_MASK access )
{
return open_winstation_desktop( NULL, name, flags, inherit, access );
}
/***********************************************************************
* CloseDesktop (USER32.@)
*/
BOOL WINAPI CloseDesktop( HDESK handle )
{
BOOL ret;
SERVER_START_REQ( close_desktop )
{
req->handle = wine_server_obj_handle( handle );
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* GetThreadDesktop (USER32.@)
*/
HDESK WINAPI GetThreadDesktop( DWORD thread )
{
HDESK ret = 0;
SERVER_START_REQ( get_thread_desktop )
{
req->tid = thread;
if (!wine_server_call_err( req )) ret = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* SetThreadDesktop (USER32.@)
*/
BOOL WINAPI SetThreadDesktop( HDESK handle )
{
BOOL ret;
SERVER_START_REQ( set_thread_desktop )
{
req->handle = wine_server_obj_handle( handle );
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
if (ret) /* reset the desktop windows */
{
struct user_thread_info *thread_info = get_user_thread_info();
struct user_key_state_info *key_state_info = thread_info->key_state;
thread_info->top_window = 0;
thread_info->msg_window = 0;
if (key_state_info) key_state_info->time = 0;
}
return ret;
}
/******************************************************************************
* EnumDesktopsA (USER32.@)
*/
BOOL WINAPI EnumDesktopsA( HWINSTA winsta, DESKTOPENUMPROCA func, LPARAM lparam )
{
struct enum_proc_lparam data;
data.func = func;
data.lparam = lparam;
return EnumDesktopsW( winsta, enum_names_WtoA, (LPARAM)&data );
}
/******************************************************************************
* EnumDesktopsW (USER32.@)
*/
BOOL WINAPI EnumDesktopsW( HWINSTA winsta, DESKTOPENUMPROCW func, LPARAM lparam )
{
unsigned int index = 0;
WCHAR name[MAX_PATH];
BOOL ret = TRUE;
NTSTATUS status;
if (!winsta)
winsta = GetProcessWindowStation();
while (ret)
{
SERVER_START_REQ( enum_desktop )
{
req->winstation = wine_server_obj_handle( winsta );
req->index = index;
wine_server_set_reply( req, name, sizeof(name) - sizeof(WCHAR) );
status = wine_server_call( req );
name[wine_server_reply_size(reply)/sizeof(WCHAR)] = 0;
index = reply->next;
}
SERVER_END_REQ;
if (status == STATUS_NO_MORE_ENTRIES)
break;
if (status)
{
SetLastError( RtlNtStatusToDosError( status ) );
return FALSE;
}
ret = func(name, lparam);
}
return ret;
}
/******************************************************************************
* OpenInputDesktop (USER32.@)
*/
HDESK WINAPI OpenInputDesktop( DWORD flags, BOOL inherit, ACCESS_MASK access )
{
HANDLE ret = 0;
TRACE( "(%x,%i,%x)\n", flags, inherit, access );
if (flags)
FIXME( "partial stub flags %08x\n", flags );
SERVER_START_REQ( open_input_desktop )
{
req->flags = flags;
req->access = access;
req->attributes = inherit ? OBJ_INHERIT : 0;
if (!wine_server_call_err( req )) ret = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* GetUserObjectInformationA (USER32.@)
*/
BOOL WINAPI GetUserObjectInformationA( HANDLE handle, INT index, LPVOID info, DWORD len, LPDWORD needed )
{
/* check for information types returning strings */
if (index == UOI_TYPE || index == UOI_NAME)
{
WCHAR buffer[MAX_PATH];
DWORD lenA, lenW;
if (!GetUserObjectInformationW( handle, index, buffer, sizeof(buffer), &lenW )) return FALSE;
lenA = WideCharToMultiByte( CP_ACP, 0, buffer, -1, NULL, 0, NULL, NULL );
if (needed) *needed = lenA;
if (lenA > len)
{
/* If the buffer length supplied by the caller is insufficient, Windows returns a
'needed' length based upon the Unicode byte length, so we should do similarly. */
if (needed) *needed = lenW;
SetLastError( ERROR_INSUFFICIENT_BUFFER );
return FALSE;
}
if (info) WideCharToMultiByte( CP_ACP, 0, buffer, -1, info, len, NULL, NULL );
return TRUE;
}
return GetUserObjectInformationW( handle, index, info, len, needed );
}
/***********************************************************************
* GetUserObjectInformationW (USER32.@)
*/
BOOL WINAPI GetUserObjectInformationW( HANDLE handle, INT index, LPVOID info, DWORD len, LPDWORD needed )
{
static const WCHAR desktopW[] = { 'D','e','s','k','t','o','p',0 };
static const WCHAR winstationW[] = { 'W','i','n','d','o','w','S','t','a','t','i','o','n',0 };
BOOL ret;
switch(index)
{
case UOI_FLAGS:
{
USEROBJECTFLAGS *obj_flags = info;
if (needed) *needed = sizeof(*obj_flags);
if (len < sizeof(*obj_flags))
{
SetLastError( ERROR_BUFFER_OVERFLOW );
return FALSE;
}
SERVER_START_REQ( set_user_object_info )
{
req->handle = wine_server_obj_handle( handle );
req->flags = 0;
ret = !wine_server_call_err( req );
if (ret)
{
/* FIXME: inherit flag */
obj_flags->dwFlags = reply->old_obj_flags;
}
}
SERVER_END_REQ;
}
return ret;
case UOI_TYPE:
SERVER_START_REQ( set_user_object_info )
{
req->handle = wine_server_obj_handle( handle );
req->flags = 0;
ret = !wine_server_call_err( req );
if (ret)
{
size_t size = reply->is_desktop ? sizeof(desktopW) : sizeof(winstationW);
if (needed) *needed = size;
if (len < size)
{
SetLastError( ERROR_INSUFFICIENT_BUFFER );
ret = FALSE;
}
else memcpy( info, reply->is_desktop ? desktopW : winstationW, size );
}
}
SERVER_END_REQ;
return ret;
case UOI_NAME:
{
WCHAR buffer[MAX_PATH];
SERVER_START_REQ( set_user_object_info )
{
req->handle = wine_server_obj_handle( handle );
req->flags = 0;
wine_server_set_reply( req, buffer, sizeof(buffer) - sizeof(WCHAR) );
ret = !wine_server_call_err( req );
if (ret)
{
size_t size = wine_server_reply_size( reply );
buffer[size / sizeof(WCHAR)] = 0;
size += sizeof(WCHAR);
if (needed) *needed = size;
if (len < size)
{
SetLastError( ERROR_INSUFFICIENT_BUFFER );
ret = FALSE;
}
else memcpy( info, buffer, size );
}
}
SERVER_END_REQ;
}
return ret;
case UOI_USER_SID:
FIXME( "not supported index %d\n", index );
/* fall through */
default:
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
}
/******************************************************************************
* SetUserObjectInformationA (USER32.@)
*/
BOOL WINAPI SetUserObjectInformationA( HANDLE handle, INT index, LPVOID info, DWORD len )
{
return SetUserObjectInformationW( handle, index, info, len );
}
/******************************************************************************
* SetUserObjectInformationW (USER32.@)
*/
BOOL WINAPI SetUserObjectInformationW( HANDLE handle, INT index, LPVOID info, DWORD len )
{
BOOL ret;
const USEROBJECTFLAGS *obj_flags = info;
if (index != UOI_FLAGS || !info || len < sizeof(*obj_flags))
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
/* FIXME: inherit flag */
SERVER_START_REQ( set_user_object_info )
{
req->handle = wine_server_obj_handle( handle );
req->flags = SET_USER_OBJECT_SET_FLAGS;
req->obj_flags = obj_flags->dwFlags;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* GetUserObjectSecurity (USER32.@)
*/
BOOL WINAPI GetUserObjectSecurity( HANDLE handle, PSECURITY_INFORMATION info,
PSECURITY_DESCRIPTOR sid, DWORD len, LPDWORD needed )
{
FIXME( "(%p %p %p len=%d %p),stub!\n", handle, info, sid, len, needed );
if (needed)
*needed = sizeof(SECURITY_DESCRIPTOR);
if (len < sizeof(SECURITY_DESCRIPTOR))
{
SetLastError( ERROR_INSUFFICIENT_BUFFER );
return FALSE;
}
return InitializeSecurityDescriptor(sid, SECURITY_DESCRIPTOR_REVISION);
}
/***********************************************************************
* SetUserObjectSecurity (USER32.@)
*/
BOOL WINAPI SetUserObjectSecurity( HANDLE handle, PSECURITY_INFORMATION info,
PSECURITY_DESCRIPTOR sid )
{
FIXME( "(%p,%p,%p),stub!\n", handle, info, sid );
return TRUE;
}
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