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Sweden-Number/dlls/kernel/vxd.c

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Moved VxDCall support to dlls/kernel.
2003-09-18 02:06:02 +02:00
/*
* Win32 VxD functions
*
* Copyright 1998 Marcus Meissner
* Copyright 1998 Ulrich Weigand
* Copyright 1998 Patrik Stridvall
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <sys/types.h>
#include <string.h>
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "winerror.h"
#include "winnls.h"
#include "ntstatus.h"
#include "winnt.h"
#include "winternl.h"
#include "miscemu.h"
#include "callback.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(vxd);
/*
* VMM VxDCall service names are (mostly) taken from Stan Mitchell's
* "Inside the Windows 95 File System"
*/
#define N_VMM_SERVICE 41
static const char * const VMM_Service_Name[N_VMM_SERVICE] =
{
"PageReserve", /* 0x0000 */
"PageCommit", /* 0x0001 */
"PageDecommit", /* 0x0002 */
"PagerRegister", /* 0x0003 */
"PagerQuery", /* 0x0004 */
"HeapAllocate", /* 0x0005 */
"ContextCreate", /* 0x0006 */
"ContextDestroy", /* 0x0007 */
"PageAttach", /* 0x0008 */
"PageFlush", /* 0x0009 */
"PageFree", /* 0x000A */
"ContextSwitch", /* 0x000B */
"HeapReAllocate", /* 0x000C */
"PageModifyPermissions", /* 0x000D */
"PageQuery", /* 0x000E */
"GetCurrentContext", /* 0x000F */
"HeapFree", /* 0x0010 */
"RegOpenKey", /* 0x0011 */
"RegCreateKey", /* 0x0012 */
"RegCloseKey", /* 0x0013 */
"RegDeleteKey", /* 0x0014 */
"RegSetValue", /* 0x0015 */
"RegDeleteValue", /* 0x0016 */
"RegQueryValue", /* 0x0017 */
"RegEnumKey", /* 0x0018 */
"RegEnumValue", /* 0x0019 */
"RegQueryValueEx", /* 0x001A */
"RegSetValueEx", /* 0x001B */
"RegFlushKey", /* 0x001C */
"RegQueryInfoKey", /* 0x001D */
"GetDemandPageInfo", /* 0x001E */
"BlockOnID", /* 0x001F */
"SignalID", /* 0x0020 */
"RegLoadKey", /* 0x0021 */
"RegUnLoadKey", /* 0x0022 */
"RegSaveKey", /* 0x0023 */
"RegRemapPreDefKey", /* 0x0024 */
"PageChangePager", /* 0x0025 */
"RegQueryMultipleValues", /* 0x0026 */
"RegReplaceKey", /* 0x0027 */
"<KERNEL32.101>" /* 0x0028 -- What does this do??? */
};
/* PageReserve arena values */
#define PR_PRIVATE 0x80000400 /* anywhere in private arena */
#define PR_SHARED 0x80060000 /* anywhere in shared arena */
#define PR_SYSTEM 0x80080000 /* anywhere in system arena */
/* PageReserve flags */
#define PR_FIXED 0x00000008 /* don't move during PageReAllocate */
#define PR_4MEG 0x00000001 /* allocate on 4mb boundary */
#define PR_STATIC 0x00000010 /* see PageReserve documentation */
/* PageCommit default pager handle values */
#define PD_ZEROINIT 0x00000001 /* swappable zero-initialized pages */
#define PD_NOINIT 0x00000002 /* swappable uninitialized pages */
#define PD_FIXEDZERO 0x00000003 /* fixed zero-initialized pages */
#define PD_FIXED 0x00000004 /* fixed uninitialized pages */
/* PageCommit flags */
#define PC_FIXED 0x00000008 /* pages are permanently locked */
#define PC_LOCKED 0x00000080 /* pages are made present and locked */
#define PC_LOCKEDIFDP 0x00000100 /* pages are locked if swap via DOS */
#define PC_WRITEABLE 0x00020000 /* make the pages writeable */
#define PC_USER 0x00040000 /* make the pages ring 3 accessible */
#define PC_INCR 0x40000000 /* increment "pagerdata" each page */
#define PC_PRESENT 0x80000000 /* make pages initially present */
#define PC_STATIC 0x20000000 /* allow commit in PR_STATIC object */
#define PC_DIRTY 0x08000000 /* make pages initially dirty */
#define PC_CACHEDIS 0x00100000 /* Allocate uncached pages - new for WDM */
#define PC_CACHEWT 0x00080000 /* Allocate write through cache pages - new for WDM */
#define PC_PAGEFLUSH 0x00008000 /* Touch device mapped pages on alloc - new for WDM */
/* PageCommitContig additional flags */
#define PCC_ZEROINIT 0x00000001 /* zero-initialize new pages */
#define PCC_NOLIN 0x10000000 /* don't map to any linear address */
/* Pop a DWORD from the 32-bit stack */
static inline DWORD stack32_pop( CONTEXT86 *context )
{
DWORD ret = *(DWORD *)context->Esp;
context->Esp += sizeof(DWORD);
return ret;
}
/******************************************************************************
* The following is a massive duplication of the advapi32 code.
* Unfortunately sharing the code is not possible since the native
* Win95 advapi32 depends on it. Someday we should probably stop
* supporting native Win95 advapi32 altogether...
*/
#define HKEY_SPECIAL_ROOT_FIRST HKEY_CLASSES_ROOT
#define HKEY_SPECIAL_ROOT_LAST HKEY_DYN_DATA
#define NB_SPECIAL_ROOT_KEYS ((UINT)HKEY_SPECIAL_ROOT_LAST - (UINT)HKEY_SPECIAL_ROOT_FIRST + 1)
static HKEY special_root_keys[NB_SPECIAL_ROOT_KEYS];
static const WCHAR name_CLASSES_ROOT[] =
{'M','a','c','h','i','n','e','\\',
'S','o','f','t','w','a','r','e','\\',
'C','l','a','s','s','e','s',0};
static const WCHAR name_LOCAL_MACHINE[] =
{'M','a','c','h','i','n','e',0};
static const WCHAR name_USERS[] =
{'U','s','e','r',0};
static const WCHAR name_PERFORMANCE_DATA[] =
{'P','e','r','f','D','a','t','a',0};
static const WCHAR name_CURRENT_CONFIG[] =
{'M','a','c','h','i','n','e','\\',
'S','y','s','t','e','m','\\',
'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
'H','a','r','d','w','a','r','e','P','r','o','f','i','l','e','s','\\',
'C','u','r','r','e','n','t',0};
static const WCHAR name_DYN_DATA[] =
{'D','y','n','D','a','t','a',0};
#define DECL_STR(key) { sizeof(name_##key)-sizeof(WCHAR), sizeof(name_##key), (LPWSTR)name_##key }
static UNICODE_STRING root_key_names[NB_SPECIAL_ROOT_KEYS] =
{
DECL_STR(CLASSES_ROOT),
{ 0, 0, NULL }, /* HKEY_CURRENT_USER is determined dynamically */
DECL_STR(LOCAL_MACHINE),
DECL_STR(USERS),
DECL_STR(PERFORMANCE_DATA),
DECL_STR(CURRENT_CONFIG),
DECL_STR(DYN_DATA)
};
#undef DECL_STR
/* check if value type needs string conversion (Ansi<->Unicode) */
inline static int is_string( DWORD type )
{
return (type == REG_SZ) || (type == REG_EXPAND_SZ) || (type == REG_MULTI_SZ);
}
/* create one of the HKEY_* special root keys */
static HKEY create_special_root_hkey( HKEY hkey, DWORD access )
{
HKEY ret = 0;
int idx = (UINT)hkey - (UINT)HKEY_SPECIAL_ROOT_FIRST;
if (hkey == HKEY_CURRENT_USER)
{
if (RtlOpenCurrentUser( access, &hkey )) return 0;
}
else
{
OBJECT_ATTRIBUTES attr;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &root_key_names[idx];
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
if (NtCreateKey( &hkey, access, &attr, 0, NULL, 0, NULL )) return 0;
}
if (!(ret = InterlockedCompareExchangePointer( (PVOID) &special_root_keys[idx], hkey, 0 )))
ret = hkey;
else
NtClose( hkey ); /* somebody beat us to it */
return ret;
}
/* map the hkey from special root to normal key if necessary */
inline static HKEY get_special_root_hkey( HKEY hkey )
{
HKEY ret = hkey;
if ((hkey >= HKEY_SPECIAL_ROOT_FIRST) && (hkey <= HKEY_SPECIAL_ROOT_LAST))
{
if (!(ret = special_root_keys[(UINT)hkey - (UINT)HKEY_SPECIAL_ROOT_FIRST]))
ret = create_special_root_hkey( hkey, KEY_ALL_ACCESS );
}
return ret;
}
/******************************************************************************
* VMM_RegCreateKeyA
*/
static DWORD VMM_RegCreateKeyA( HKEY hkey, LPCSTR name, PHKEY retkey )
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
ANSI_STRING nameA;
NTSTATUS status;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
attr.Length = sizeof(attr);
attr.RootDirectory = hkey;
attr.ObjectName = &nameW;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitAnsiString( &nameA, name );
if (!(status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE )))
{
status = NtCreateKey( retkey, KEY_ALL_ACCESS, &attr, 0, NULL,
REG_OPTION_NON_VOLATILE, NULL );
RtlFreeUnicodeString( &nameW );
}
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* VMM_RegOpenKeyExA
*/
DWORD WINAPI VMM_RegOpenKeyExA(HKEY hkey, LPCSTR name, DWORD reserved, REGSAM access, PHKEY retkey)
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
STRING nameA;
NTSTATUS status;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
attr.Length = sizeof(attr);
attr.RootDirectory = hkey;
attr.ObjectName = &nameW;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitAnsiString( &nameA, name );
if (!(status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE )))
{
status = NtOpenKey( retkey, access, &attr );
RtlFreeUnicodeString( &nameW );
}
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* VMM_RegCloseKey
*/
static DWORD VMM_RegCloseKey( HKEY hkey )
{
if (!hkey || hkey >= (HKEY)0x80000000) return ERROR_SUCCESS;
return RtlNtStatusToDosError( NtClose( hkey ) );
}
/******************************************************************************
* VMM_RegDeleteKeyA
*/
static DWORD VMM_RegDeleteKeyA( HKEY hkey, LPCSTR name )
{
DWORD ret;
HKEY tmp;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
if (!name || !*name) return RtlNtStatusToDosError( NtDeleteKey( hkey ) );
if (!(ret = VMM_RegOpenKeyExA( hkey, name, 0, 0, &tmp )))
{
ret = RtlNtStatusToDosError( NtDeleteKey( tmp ) );
NtClose( tmp );
}
return ret;
}
/******************************************************************************
* VMM_RegSetValueExA
*/
static DWORD VMM_RegSetValueExA( HKEY hkey, LPCSTR name, DWORD reserved, DWORD type,
CONST BYTE *data, DWORD count )
{
UNICODE_STRING nameW;
ANSI_STRING nameA;
WCHAR *dataW = NULL;
NTSTATUS status;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
if (is_string(type))
{
DWORD lenW;
if (count)
{
/* if user forgot to count terminating null, add it (yes NT does this) */
if (data[count-1] && !data[count]) count++;
}
RtlMultiByteToUnicodeSize( &lenW, data, count );
if (!(dataW = HeapAlloc( GetProcessHeap(), 0, lenW ))) return ERROR_OUTOFMEMORY;
RtlMultiByteToUnicodeN( dataW, lenW, NULL, data, count );
count = lenW;
data = (BYTE *)dataW;
}
RtlInitAnsiString( &nameA, name );
if (!(status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE )))
{
status = NtSetValueKey( hkey, &nameW, 0, type, data, count );
RtlFreeUnicodeString( &nameW );
}
if (dataW) HeapFree( GetProcessHeap(), 0, dataW );
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* VMM_RegSetValueA
*/
static DWORD VMM_RegSetValueA( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
{
HKEY subkey = hkey;
DWORD ret;
if (type != REG_SZ) return ERROR_INVALID_PARAMETER;
if (name && name[0]) /* need to create the subkey */
{
if ((ret = VMM_RegCreateKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
}
ret = VMM_RegSetValueExA( subkey, NULL, 0, REG_SZ, (LPBYTE)data, strlen(data)+1 );
if (subkey != hkey) NtClose( subkey );
return ret;
}
/******************************************************************************
* VMM_RegDeleteValueA
*/
static DWORD VMM_RegDeleteValueA( HKEY hkey, LPCSTR name )
{
UNICODE_STRING nameW;
STRING nameA;
NTSTATUS status;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
RtlInitAnsiString( &nameA, name );
if (!(status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE )))
{
status = NtDeleteValueKey( hkey, &nameW );
RtlFreeUnicodeString( &nameW );
}
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* VMM_RegQueryValueExA
*/
static DWORD VMM_RegQueryValueExA( HKEY hkey, LPCSTR name, LPDWORD reserved, LPDWORD type,
LPBYTE data, LPDWORD count )
{
NTSTATUS status;
ANSI_STRING nameA;
UNICODE_STRING nameW;
DWORD total_size;
char buffer[256], *buf_ptr = buffer;
KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer;
static const int info_size = offsetof( KEY_VALUE_PARTIAL_INFORMATION, Data );
if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
RtlInitAnsiString( &nameA, name );
if ((status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE )))
return RtlNtStatusToDosError(status);
status = NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation,
buffer, sizeof(buffer), &total_size );
if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
/* we need to fetch the contents for a string type even if not requested,
* because we need to compute the length of the ASCII string. */
if (data || is_string(info->Type))
{
/* retry with a dynamically allocated buffer */
while (status == STATUS_BUFFER_OVERFLOW)
{
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
{
status = STATUS_NO_MEMORY;
goto done;
}
info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr;
status = NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation,
buf_ptr, total_size, &total_size );
}
if (!status)
{
if (is_string(info->Type))
{
DWORD len = WideCharToMultiByte( CP_ACP, 0, (WCHAR *)(buf_ptr + info_size),
(total_size - info_size) /sizeof(WCHAR),
NULL, 0, NULL, NULL );
if (data && len)
{
if (len > *count) status = STATUS_BUFFER_OVERFLOW;
else
{
WideCharToMultiByte( CP_ACP, 0, (WCHAR *)(buf_ptr + info_size),
(total_size - info_size) /sizeof(WCHAR),
data, len, NULL, NULL );
/* if the type is REG_SZ and data is not 0-terminated
* and there is enough space in the buffer NT appends a \0 */
if (len < *count && data[len-1]) data[len] = 0;
}
}
total_size = len + info_size;
}
else if (data)
{
if (total_size - info_size > *count) status = STATUS_BUFFER_OVERFLOW;
else memcpy( data, buf_ptr + info_size, total_size - info_size );
}
}
else if (status != STATUS_BUFFER_OVERFLOW) goto done;
}
if (type) *type = info->Type;
if (count) *count = total_size - info_size;
done:
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
RtlFreeUnicodeString( &nameW );
return RtlNtStatusToDosError(status);
}
/******************************************************************************
* VMM_RegQueryValueA
*/
static DWORD VMM_RegQueryValueA( HKEY hkey, LPCSTR name, LPSTR data, LPLONG count )
{
DWORD ret;
HKEY subkey = hkey;
if (name && name[0])
{
if ((ret = VMM_RegOpenKeyExA( hkey, name, 0, KEY_ALL_ACCESS, &subkey )) != ERROR_SUCCESS)
return ret;
}
ret = VMM_RegQueryValueExA( subkey, NULL, NULL, NULL, (LPBYTE)data, count );
if (subkey != hkey) NtClose( subkey );
if (ret == ERROR_FILE_NOT_FOUND)
{
/* return empty string if default value not found */
if (data) *data = 0;
if (count) *count = 1;
ret = ERROR_SUCCESS;
}
return ret;
}
/******************************************************************************
* VMM_RegEnumValueA
*/
static DWORD VMM_RegEnumValueA( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_count,
LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
{
NTSTATUS status;
DWORD total_size;
char buffer[256], *buf_ptr = buffer;
KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)buffer;
static const int info_size = offsetof( KEY_VALUE_FULL_INFORMATION, Name );
TRACE("(%p,%ld,%p,%p,%p,%p,%p,%p)\n",
hkey, index, value, val_count, reserved, type, data, count );
/* NT only checks count, not val_count */
if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
total_size = info_size + (MAX_PATH + 1) * sizeof(WCHAR);
if (data) total_size += *count;
total_size = min( sizeof(buffer), total_size );
status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
buffer, total_size, &total_size );
if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
/* we need to fetch the contents for a string type even if not requested,
* because we need to compute the length of the ASCII string. */
if (value || data || is_string(info->Type))
{
/* retry with a dynamically allocated buffer */
while (status == STATUS_BUFFER_OVERFLOW)
{
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
return ERROR_NOT_ENOUGH_MEMORY;
info = (KEY_VALUE_FULL_INFORMATION *)buf_ptr;
status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation,
buf_ptr, total_size, &total_size );
}
if (status) goto done;
if (is_string(info->Type))
{
DWORD len;
RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->DataOffset),
total_size - info->DataOffset );
if (data && len)
{
if (len > *count) status = STATUS_BUFFER_OVERFLOW;
else
{
RtlUnicodeToMultiByteN( data, len, NULL, (WCHAR *)(buf_ptr + info->DataOffset),
total_size - info->DataOffset );
/* if the type is REG_SZ and data is not 0-terminated
* and there is enough space in the buffer NT appends a \0 */
if (len < *count && data[len-1]) data[len] = 0;
}
}
info->DataLength = len;
}
else if (data)
{
if (total_size - info->DataOffset > *count) status = STATUS_BUFFER_OVERFLOW;
else memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset );
}
if (value && !status)
{
DWORD len;
RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
if (len >= *val_count)
{
status = STATUS_BUFFER_OVERFLOW;
if (*val_count)
{
len = *val_count - 1;
RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
value[len] = 0;
}
}
else
{
RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength );
value[len] = 0;
*val_count = len;
}
}
}
else status = STATUS_SUCCESS;
if (type) *type = info->Type;
if (count) *count = info->DataLength;
done:
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
return RtlNtStatusToDosError(status);
}
/******************************************************************************
* VMM_RegEnumKeyA
*/
static DWORD VMM_RegEnumKeyA( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
{
NTSTATUS status;
char buffer[256], *buf_ptr = buffer;
KEY_NODE_INFORMATION *info = (KEY_NODE_INFORMATION *)buffer;
DWORD total_size;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
status = NtEnumerateKey( hkey, index, KeyNodeInformation,
buffer, sizeof(buffer), &total_size );
while (status == STATUS_BUFFER_OVERFLOW)
{
/* retry with a dynamically allocated buffer */
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size )))
return ERROR_NOT_ENOUGH_MEMORY;
info = (KEY_NODE_INFORMATION *)buf_ptr;
status = NtEnumerateKey( hkey, index, KeyNodeInformation,
buf_ptr, total_size, &total_size );
}
if (!status)
{
DWORD len;
RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength );
if (len >= name_len) status = STATUS_BUFFER_OVERFLOW;
else
{
RtlUnicodeToMultiByteN( name, len, NULL, info->Name, info->NameLength );
name[len] = 0;
}
}
if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr );
return RtlNtStatusToDosError( status );
}
/******************************************************************************
* VMM_RegQueryInfoKeyA
*
* NOTE: This VxDCall takes only a subset of the parameters that the
* corresponding Win32 API call does. The implementation in Win95
* ADVAPI32 sets all output parameters not mentioned here to zero.
*/
static DWORD VMM_RegQueryInfoKeyA( HKEY hkey, LPDWORD subkeys, LPDWORD max_subkey,
LPDWORD values, LPDWORD max_value, LPDWORD max_data )
{
NTSTATUS status;
KEY_FULL_INFORMATION info;
DWORD total_size;
if (!(hkey = get_special_root_hkey( hkey ))) return ERROR_INVALID_HANDLE;
status = NtQueryKey( hkey, KeyFullInformation, &info, sizeof(info), &total_size );
if (status && status != STATUS_BUFFER_OVERFLOW) return RtlNtStatusToDosError( status );
if (subkeys) *subkeys = info.SubKeys;
if (max_subkey) *max_subkey = info.MaxNameLen;
if (values) *values = info.Values;
if (max_value) *max_value = info.MaxValueNameLen;
if (max_data) *max_data = info.MaxValueDataLen;
return ERROR_SUCCESS;
}
/***********************************************************************
* VxDCall_VMM
*/
static DWORD VxDCall_VMM( DWORD service, CONTEXT86 *context )
{
switch ( LOWORD(service) )
{
case 0x0011: /* RegOpenKey */
{
HKEY hkey = (HKEY) stack32_pop( context );
LPCSTR lpszSubKey = (LPCSTR)stack32_pop( context );
PHKEY retkey = (PHKEY)stack32_pop( context );
return VMM_RegOpenKeyExA( hkey, lpszSubKey, 0, KEY_ALL_ACCESS, retkey );
}
case 0x0012: /* RegCreateKey */
{
HKEY hkey = (HKEY) stack32_pop( context );
LPCSTR lpszSubKey = (LPCSTR)stack32_pop( context );
PHKEY retkey = (PHKEY)stack32_pop( context );
return VMM_RegCreateKeyA( hkey, lpszSubKey, retkey );
}
case 0x0013: /* RegCloseKey */
{
HKEY hkey = (HKEY)stack32_pop( context );
return VMM_RegCloseKey( hkey );
}
case 0x0014: /* RegDeleteKey */
{
HKEY hkey = (HKEY) stack32_pop( context );
LPCSTR lpszSubKey = (LPCSTR)stack32_pop( context );
return VMM_RegDeleteKeyA( hkey, lpszSubKey );
}
case 0x0015: /* RegSetValue */
{
HKEY hkey = (HKEY) stack32_pop( context );
LPCSTR lpszSubKey = (LPCSTR)stack32_pop( context );
DWORD dwType = (DWORD) stack32_pop( context );
LPCSTR lpszData = (LPCSTR)stack32_pop( context );
DWORD cbData = (DWORD) stack32_pop( context );
return VMM_RegSetValueA( hkey, lpszSubKey, dwType, lpszData, cbData );
}
case 0x0016: /* RegDeleteValue */
{
HKEY hkey = (HKEY) stack32_pop( context );
LPSTR lpszValue = (LPSTR)stack32_pop( context );
return VMM_RegDeleteValueA( hkey, lpszValue );
}
case 0x0017: /* RegQueryValue */
{
HKEY hkey = (HKEY) stack32_pop( context );
LPSTR lpszSubKey = (LPSTR) stack32_pop( context );
LPSTR lpszData = (LPSTR) stack32_pop( context );
LPDWORD lpcbData = (LPDWORD)stack32_pop( context );
return VMM_RegQueryValueA( hkey, lpszSubKey, lpszData, lpcbData );
}
case 0x0018: /* RegEnumKey */
{
HKEY hkey = (HKEY) stack32_pop( context );
DWORD iSubkey = (DWORD)stack32_pop( context );
LPSTR lpszName = (LPSTR)stack32_pop( context );
DWORD lpcchName = (DWORD)stack32_pop( context );
return VMM_RegEnumKeyA( hkey, iSubkey, lpszName, lpcchName );
}
case 0x0019: /* RegEnumValue */
{
HKEY hkey = (HKEY) stack32_pop( context );
DWORD iValue = (DWORD) stack32_pop( context );
LPSTR lpszValue = (LPSTR) stack32_pop( context );
LPDWORD lpcchValue = (LPDWORD)stack32_pop( context );
LPDWORD lpReserved = (LPDWORD)stack32_pop( context );
LPDWORD lpdwType = (LPDWORD)stack32_pop( context );
LPBYTE lpbData = (LPBYTE) stack32_pop( context );
LPDWORD lpcbData = (LPDWORD)stack32_pop( context );
return VMM_RegEnumValueA( hkey, iValue, lpszValue, lpcchValue,
lpReserved, lpdwType, lpbData, lpcbData );
}
case 0x001A: /* RegQueryValueEx */
{
HKEY hkey = (HKEY) stack32_pop( context );
LPSTR lpszValue = (LPSTR) stack32_pop( context );
LPDWORD lpReserved = (LPDWORD)stack32_pop( context );
LPDWORD lpdwType = (LPDWORD)stack32_pop( context );
LPBYTE lpbData = (LPBYTE) stack32_pop( context );
LPDWORD lpcbData = (LPDWORD)stack32_pop( context );
return VMM_RegQueryValueExA( hkey, lpszValue, lpReserved,
lpdwType, lpbData, lpcbData );
}
case 0x001B: /* RegSetValueEx */
{
HKEY hkey = (HKEY) stack32_pop( context );
LPSTR lpszValue = (LPSTR) stack32_pop( context );
DWORD dwReserved = (DWORD) stack32_pop( context );
DWORD dwType = (DWORD) stack32_pop( context );
LPBYTE lpbData = (LPBYTE)stack32_pop( context );
DWORD cbData = (DWORD) stack32_pop( context );
return VMM_RegSetValueExA( hkey, lpszValue, dwReserved,
dwType, lpbData, cbData );
}
case 0x001C: /* RegFlushKey */
{
HKEY hkey = (HKEY)stack32_pop( context );
FIXME( "RegFlushKey(%p): stub\n", hkey );
return ERROR_SUCCESS;
}
case 0x001D: /* RegQueryInfoKey */
{
/* NOTE: This VxDCall takes only a subset of the parameters that the
corresponding Win32 API call does. The implementation in Win95
ADVAPI32 sets all output parameters not mentioned here to zero. */
HKEY hkey = (HKEY) stack32_pop( context );
LPDWORD lpcSubKeys = (LPDWORD)stack32_pop( context );
LPDWORD lpcchMaxSubKey = (LPDWORD)stack32_pop( context );
LPDWORD lpcValues = (LPDWORD)stack32_pop( context );
LPDWORD lpcchMaxValueName = (LPDWORD)stack32_pop( context );
LPDWORD lpcchMaxValueData = (LPDWORD)stack32_pop( context );
return VMM_RegQueryInfoKeyA( hkey, lpcSubKeys, lpcchMaxSubKey,
lpcValues, lpcchMaxValueName, lpcchMaxValueData );
}
case 0x0021: /* RegLoadKey */
{
HKEY hkey = (HKEY) stack32_pop( context );
LPCSTR lpszSubKey = (LPCSTR)stack32_pop( context );
LPCSTR lpszFile = (LPCSTR)stack32_pop( context );
FIXME("RegLoadKey(%p,%s,%s): stub\n",hkey, debugstr_a(lpszSubKey), debugstr_a(lpszFile));
return ERROR_SUCCESS;
}
case 0x0022: /* RegUnLoadKey */
{
HKEY hkey = (HKEY) stack32_pop( context );
LPCSTR lpszSubKey = (LPCSTR)stack32_pop( context );
FIXME("RegUnLoadKey(%p,%s): stub\n",hkey, debugstr_a(lpszSubKey));
return ERROR_SUCCESS;
}
case 0x0023: /* RegSaveKey */
{
HKEY hkey = (HKEY) stack32_pop( context );
LPCSTR lpszFile = (LPCSTR)stack32_pop( context );
LPSECURITY_ATTRIBUTES sa = (LPSECURITY_ATTRIBUTES)stack32_pop( context );
FIXME("RegSaveKey(%p,%s,%p): stub\n",hkey, debugstr_a(lpszFile),sa);
return ERROR_SUCCESS;
}
#if 0 /* Functions are not yet implemented in misc/registry.c */
case 0x0024: /* RegRemapPreDefKey */
case 0x0026: /* RegQueryMultipleValues */
#endif
case 0x0027: /* RegReplaceKey */
{
HKEY hkey = (HKEY) stack32_pop( context );
LPCSTR lpszSubKey = (LPCSTR)stack32_pop( context );
LPCSTR lpszNewFile= (LPCSTR)stack32_pop( context );
LPCSTR lpszOldFile= (LPCSTR)stack32_pop( context );
FIXME("RegReplaceKey(%p,%s,%s,%s): stub\n", hkey, debugstr_a(lpszSubKey),
debugstr_a(lpszNewFile),debugstr_a(lpszOldFile));
return ERROR_SUCCESS;
}
case 0x0000: /* PageReserve */
{
LPVOID address;
LPVOID ret;
DWORD psize = getpagesize();
ULONG page = (ULONG) stack32_pop( context );
ULONG npages = (ULONG) stack32_pop( context );
ULONG flags = (ULONG) stack32_pop( context );
TRACE("PageReserve: page: %08lx, npages: %08lx, flags: %08lx partial stub!\n",
page, npages, flags );
if ( page == PR_SYSTEM ) {
ERR("Can't reserve ring 1 memory\n");
return -1;
}
/* FIXME: This has to be handled separately for the separate
address-spaces we now have */
if ( page == PR_PRIVATE || page == PR_SHARED ) page = 0;
/* FIXME: Handle flags in some way */
address = (LPVOID )(page * psize);
ret = VirtualAlloc ( address, ( npages * psize ), MEM_RESERVE, 0 );
TRACE("PageReserve: returning: %08lx\n", (DWORD )ret );
if ( ret == NULL )
return -1;
else
return (DWORD )ret;
}
case 0x0001: /* PageCommit */
{
LPVOID address;
LPVOID ret;
DWORD virt_perm;
DWORD psize = getpagesize();
ULONG page = (ULONG) stack32_pop( context );
ULONG npages = (ULONG) stack32_pop( context );
ULONG hpd = (ULONG) stack32_pop( context );
ULONG pagerdata = (ULONG) stack32_pop( context );
ULONG flags = (ULONG) stack32_pop( context );
TRACE("PageCommit: page: %08lx, npages: %08lx, hpd: %08lx pagerdata: "
"%08lx, flags: %08lx partial stub\n",
page, npages, hpd, pagerdata, flags );
if ( flags & PC_USER )
if ( flags & PC_WRITEABLE )
virt_perm = PAGE_EXECUTE_READWRITE;
else
virt_perm = PAGE_EXECUTE_READ;
else
virt_perm = PAGE_NOACCESS;
address = (LPVOID )(page * psize);
ret = VirtualAlloc ( address, ( npages * psize ), MEM_COMMIT, virt_perm );
TRACE("PageCommit: Returning: %08lx\n", (DWORD )ret );
return (DWORD )ret;
}
case 0x0002: /* PageDecommit */
{
LPVOID address;
BOOL ret;
DWORD psize = getpagesize();
ULONG page = (ULONG) stack32_pop( context );
ULONG npages = (ULONG) stack32_pop( context );
ULONG flags = (ULONG) stack32_pop( context );
TRACE("PageDecommit: page: %08lx, npages: %08lx, flags: %08lx partial stub\n",
page, npages, flags );
address = (LPVOID )( page * psize );
ret = VirtualFree ( address, ( npages * psize ), MEM_DECOMMIT );
TRACE("PageDecommit: Returning: %s\n", ret ? "TRUE" : "FALSE" );
return ret;
}
case 0x000d: /* PageModifyPermissions */
{
DWORD pg_old_perm;
DWORD pg_new_perm;
DWORD virt_old_perm;
DWORD virt_new_perm;
MEMORY_BASIC_INFORMATION mbi;
LPVOID address;
DWORD psize = getpagesize();
ULONG page = stack32_pop ( context );
ULONG npages = stack32_pop ( context );
ULONG permand = stack32_pop ( context );
ULONG permor = stack32_pop ( context );
TRACE("PageModifyPermissions %08lx %08lx %08lx %08lx partial stub\n",
page, npages, permand, permor );
address = (LPVOID )( page * psize );
VirtualQuery ( address, &mbi, sizeof ( MEMORY_BASIC_INFORMATION ));
virt_old_perm = mbi.Protect;
switch ( virt_old_perm & mbi.Protect ) {
case PAGE_READONLY:
case PAGE_EXECUTE:
case PAGE_EXECUTE_READ:
pg_old_perm = PC_USER;
break;
case PAGE_READWRITE:
case PAGE_WRITECOPY:
case PAGE_EXECUTE_READWRITE:
case PAGE_EXECUTE_WRITECOPY:
pg_old_perm = PC_USER | PC_WRITEABLE;
break;
case PAGE_NOACCESS:
default:
pg_old_perm = 0;
break;
}
pg_new_perm = pg_old_perm;
pg_new_perm &= permand & ~PC_STATIC;
pg_new_perm |= permor & ~PC_STATIC;
virt_new_perm = ( virt_old_perm ) & ~0xff;
if ( pg_new_perm & PC_USER )
{
if ( pg_new_perm & PC_WRITEABLE )
virt_new_perm |= PAGE_EXECUTE_READWRITE;
else
virt_new_perm |= PAGE_EXECUTE_READ;
}
if ( ! VirtualProtect ( address, ( npages * psize ), virt_new_perm, &virt_old_perm ) ) {
ERR("Can't change page permissions for %08lx\n", (DWORD )address );
return 0xffffffff;
}
TRACE("Returning: %08lx\n", pg_old_perm );
return pg_old_perm;
}
case 0x000a: /* PageFree */
{
BOOL ret;
LPVOID hmem = (LPVOID) stack32_pop( context );
DWORD flags = (DWORD ) stack32_pop( context );
TRACE("PageFree: hmem: %08lx, flags: %08lx partial stub\n",
(DWORD )hmem, flags );
ret = VirtualFree ( hmem, 0, MEM_RELEASE );
context->Eax = ret;
TRACE("Returning: %d\n", ret );
return 0;
}
case 0x001e: /* GetDemandPageInfo */
{
DWORD dinfo = (DWORD)stack32_pop( context );
DWORD flags = (DWORD)stack32_pop( context );
/* GetDemandPageInfo is supposed to fill out the struct at
* "dinfo" with various low-level memory management information.
* Apps are certainly not supposed to call this, although it's
* demoed and documented by Pietrek on pages 441-443 of "Windows
* 95 System Programming Secrets" if any program needs a real
* implementation of this.
*/
FIXME("GetDemandPageInfo(%08lx %08lx): stub!\n", dinfo, flags);
return 0;
}
default:
if (LOWORD(service) < N_VMM_SERVICE)
FIXME( "Unimplemented service %s (%08lx)\n",
VMM_Service_Name[LOWORD(service)], service);
else
FIXME( "Unknown service %08lx\n", service);
break;
}
return 0xffffffff; /* FIXME */
}
/********************************************************************************
* VxDCall_VWin32
*
* Service numbers taken from page 448 of Pietrek's "Windows 95 System
* Programming Secrets". Parameters from experimentation on real Win98.
*
*/
static DWORD VxDCall_VWin32( DWORD service, CONTEXT86 *context )
{
switch ( LOWORD(service) )
{
case 0x0000: /* GetVersion */
{
DWORD vers = GetVersion();
return (LOBYTE(vers) << 8) | HIBYTE(vers);
}
break;
case 0x0020: /* Get VMCPD Version */
{
DWORD parm = (DWORD) stack32_pop(context);
FIXME("Get VMCPD Version(%08lx): partial stub!\n", parm);
/* FIXME: This is what Win98 returns, it may
* not be correct in all situations.
* It makes Bleem! happy though.
*/
return 0x0405;
}
case 0x0029: /* Int31/DPMI dispatch */
{
DWORD callnum = (DWORD) stack32_pop(context);
DWORD parm = (DWORD) stack32_pop(context);
TRACE("Int31/DPMI dispatch(%08lx)\n", callnum);
SET_AX( context, callnum );
SET_CX( context, parm );
if(Dosvm.CallBuiltinHandler || DPMI_LoadDosSystem())
Dosvm.CallBuiltinHandler( context, 0x31 );
return LOWORD(context->Eax);
}
break;
case 0x002a: /* Int41 dispatch - parm = int41 service number */
{
DWORD callnum = (DWORD) stack32_pop(context);
return callnum; /* FIXME: should really call INT_Int41Handler() */
}
break;
default:
FIXME("Unknown VWin32 service %08lx\n", service);
break;
}
return 0xffffffff;
}
/***********************************************************************
* VxDCall0 (KERNEL32.1)
* VxDCall1 (KERNEL32.2)
* VxDCall2 (KERNEL32.3)
* VxDCall3 (KERNEL32.4)
* VxDCall4 (KERNEL32.5)
* VxDCall5 (KERNEL32.6)
* VxDCall6 (KERNEL32.7)
* VxDCall7 (KERNEL32.8)
* VxDCall8 (KERNEL32.9)
*/
void VxDCall( DWORD service, CONTEXT86 *context )
{
DWORD ret;
TRACE( "(%08lx, ...)\n", service);
switch(HIWORD(service))
{
case 0x0001: /* VMM */
ret = VxDCall_VMM( service, context );
break;
case 0x002a: /* VWIN32 */
ret = VxDCall_VWin32( service, context );
break;
default:
FIXME( "Unknown/unimplemented VxD (%08lx)\n", service);
ret = 0xffffffff; /* FIXME */
break;
}
context->Eax = ret;
}
/***********************************************************************
* OpenVxDHandle (KERNEL32.@)
*
* This function is supposed to return the corresponding Ring 0
* ("kernel") handle for a Ring 3 handle in Win9x.
* Evidently, Wine will have problems with this. But we try anyway,
* maybe it helps...
*/
HANDLE WINAPI OpenVxDHandle(HANDLE hHandleRing3)
{
FIXME( "(%p), stub! (returning Ring 3 handle instead of Ring 0)\n", hHandleRing3);
return hHandleRing3;
}