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mountmgr.sys: Always add all user-defined ports.

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Makes it possible to define non-consecutive COM ports.

Signed-off-by: Piotr Caban <piotr@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Piotr Caban 2019-09-24 16:15:00 +02:00 committed by Alexandre Julliard
parent 93ea9713c2
commit 38b30a593e
1 changed files with 37 additions and 30 deletions
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67
dlls/mountmgr.sys/device.c
View file

@ -1066,8 +1066,8 @@ NTSTATUS WINAPI harddisk_driver_entry( DRIVER_OBJECT *driver, UNICODE_STRING *pa
/* create a serial or parallel port */
static BOOL create_port_device( DRIVER_OBJECT *driver, int n, const char *unix_path, const char *dosdevices_path, char *p,
HKEY wine_ports_key, HKEY windows_ports_key )
static BOOL create_port_device( DRIVER_OBJECT *driver, int n, const char *unix_path,
const char *dosdevices_path, HKEY windows_ports_key )
{
static const WCHAR comW[] = {'C','O','M','%','u',0};
static const WCHAR lptW[] = {'L','P','T','%','u',0};
@ -1079,8 +1079,6 @@ static BOOL create_port_device( DRIVER_OBJECT *driver, int n, const char *unix_p
static const WCHAR dosdevices_prnW[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\','P','R','N',0};
const WCHAR *dos_name_format, *nt_name_format, *reg_value_format, *symlink_format, *default_device;
WCHAR dos_name[7], reg_value[256], nt_buffer[32], symlink_buffer[32];
DWORD type, size;
char override_path[256];
UNICODE_STRING nt_name, symlink_name, default_name;
DEVICE_OBJECT *dev_obj;
NTSTATUS status;
@ -1104,20 +1102,8 @@ static BOOL create_port_device( DRIVER_OBJECT *driver, int n, const char *unix_p
sprintfW( dos_name, dos_name_format, n );
/* check for override */
size = sizeof(reg_value);
if (RegQueryValueExW( wine_ports_key, dos_name, NULL, &type, (BYTE *)reg_value, &size ) == 0 && type == REG_SZ)
{
if (!reg_value[0] || !WideCharToMultiByte( CP_UNIXCP, WC_ERR_INVALID_CHARS, reg_value, size/sizeof(WCHAR),
override_path, sizeof(override_path), NULL, NULL))
return FALSE;
unix_path = override_path;
}
if (!unix_path)
return FALSE;
/* create DOS device */
sprintf( p, "%u", n );
unlink( dosdevices_path );
if (symlink( unix_path, dosdevices_path ) != 0)
return FALSE;
@ -1176,11 +1162,18 @@ static void create_port_devices( DRIVER_OBJECT *driver )
static const WCHAR parallel_ports_keyW[] = {'H','A','R','D','W','A','R','E','\\',
'D','E','V','I','C','E','M','A','P','\\',
'P','A','R','A','L','L','E','L',' ','P','O','R','T','S',0};
static const WCHAR comW[] = {'C','O','M'};
static const WCHAR lptW[] = {'L','P','T'};
const char **search_paths;
const WCHAR *windows_ports_key_name;
char *dosdevices_path, *p;
HKEY wine_ports_key = NULL, windows_ports_key = NULL;
char unix_path[256];
const WCHAR *port_prefix;
WCHAR reg_value[256];
BOOL used[MAX_PORTS];
WCHAR port[7];
DWORD port_len, type, size;
int i, j, n;
if (!(dosdevices_path = get_dosdevices_path( &p )))
@ -1193,6 +1186,7 @@ static void create_port_devices( DRIVER_OBJECT *driver )
p[2] = 'm';
search_paths = serial_search_paths;
windows_ports_key_name = serialcomm_keyW;
port_prefix = comW;
}
else
{
@ -1201,6 +1195,7 @@ static void create_port_devices( DRIVER_OBJECT *driver )
p[2] = 't';
search_paths = parallel_search_paths;
windows_ports_key_name = parallel_ports_keyW;
port_prefix = lptW;
}
p += 3;
@ -1209,16 +1204,34 @@ static void create_port_devices( DRIVER_OBJECT *driver )
RegCreateKeyExW( HKEY_LOCAL_MACHINE, windows_ports_key_name, 0, NULL, REG_OPTION_VOLATILE,
KEY_ALL_ACCESS, NULL, &windows_ports_key, NULL );
/* remove old symlinks */
for (n = 1; n <= MAX_PORTS; n++)
/* add user-defined serial ports */
memset(used, 0, sizeof(used));
for (i = 0; ; i++)
{
sprintf( p, "%u", n );
if (unlink( dosdevices_path ) != 0 && errno == ENOENT)
port_len = ARRAY_SIZE(port);
size = sizeof(reg_value);
if (RegEnumValueW( wine_ports_key, i, port, &port_len, NULL,
&type, (BYTE*)reg_value, &size ) != ERROR_SUCCESS)
break;
if (type != REG_SZ || strncmpiW( port, port_prefix, 3 ))
continue;
n = atolW( port + 3 );
if (n < 1 || n >= MAX_PORTS)
continue;
if (!WideCharToMultiByte( CP_UNIXCP, WC_ERR_INVALID_CHARS, reg_value, size/sizeof(WCHAR),
unix_path, sizeof(unix_path), NULL, NULL))
continue;
used[n - 1] = TRUE;
sprintf( p, "%u", n );
create_port_device( driver, n, unix_path, dosdevices_path, windows_ports_key );
}
/* look for ports in the usual places */
n = 1;
while (n <= MAX_PORTS && used[n - 1]) n++;
for (i = 0; search_paths[i]; i++)
{
for (j = 0; n <= MAX_PORTS; j++)
@ -1227,19 +1240,13 @@ static void create_port_devices( DRIVER_OBJECT *driver )
if (access( unix_path, F_OK ) != 0)
break;
create_port_device( driver, n, unix_path, dosdevices_path, p, wine_ports_key, windows_ports_key );
sprintf( p, "%u", n );
create_port_device( driver, n, unix_path, dosdevices_path, windows_ports_key );
n++;
while (n <= MAX_PORTS && used[n - 1]) n++;
}
}
/* add any extra user-defined serial ports */
while (n <= MAX_PORTS)
{
if (!create_port_device( driver, n, NULL, dosdevices_path, p, wine_ports_key, windows_ports_key ))
break;
n++;
}
RegCloseKey( wine_ports_key );
RegCloseKey( windows_ports_key );
HeapFree( GetProcessHeap(), 0, dosdevices_path );