/* remove an existing dos drive, by letter or udi */
NTSTATUS remove_dos_device( int letter, const char *udi )
{
HKEY hkey;
struct dos_drive *drive;
LIST_FOR_EACH_ENTRY( drive, &drives_list, struct dos_drive, entry )
{
if (letter != -1 && drive->drive != letter) continue;
if (udi)
{
if (!drive->udi) continue;
if (strcmp( udi, drive->udi )) continue;
}
if (drive->drive != -1)
{
BOOL modified = set_unix_mount_point( drive, NULL );
/* clear the registry key too */
if (!RegOpenKeyW( HKEY_LOCAL_MACHINE, drives_keyW, &hkey ))
{
WCHAR name[3] = {'a',':',0};
name[0] += drive->drive;
RegDeleteValueW( hkey, name );
RegCloseKey( hkey );
}
if (modified && udi) send_notify( drive->drive, DBT_DEVICEREMOVECOMPLETE );
}
delete_disk_device( drive );
return STATUS_SUCCESS;
}
return STATUS_NO_SUCH_DEVICE;
}
/* change the information for an existing volume */
static NTSTATUS set_volume_info( struct volume *volume, struct dos_drive *drive, const char *device,
const char *mount_point, enum device_type type, const GUID *guid )
{
void *id = NULL;
unsigned int id_len = 0;
struct disk_device *disk_device = volume->device;
NTSTATUS status;
if (type != disk_device->type)
{
if ((status = create_disk_device( type, &disk_device ))) return status;
if (volume->mount)
{
delete_mount_point( volume->mount );
volume->mount = NULL;
}
if (drive && drive->mount)
{
delete_mount_point( drive->mount );
drive->mount = NULL;
}
delete_disk_device( volume->device );
volume->device = disk_device;
}
else
{
RtlFreeHeap( GetProcessHeap(), 0, disk_device->unix_device );
RtlFreeHeap( GetProcessHeap(), 0, disk_device->unix_mount );
}
disk_device->unix_device = strdupA( device );
disk_device->unix_mount = strdupA( mount_point );
if (guid && memcmp( &volume->guid, guid, sizeof(volume->guid) ))
{
volume->guid = *guid;
if (volume->mount)
{
delete_mount_point( volume->mount );
volume->mount = NULL;
}
}
if (!volume->mount)
volume->mount = add_volume_mount_point( disk_device->dev_obj, &disk_device->name, &volume->guid );
if (drive && !drive->mount)
drive->mount = add_dosdev_mount_point( disk_device->dev_obj, &disk_device->name, drive->drive );
if (disk_device->unix_mount)
{
id = disk_device->unix_mount;
id_len = strlen( disk_device->unix_mount ) + 1;
}
if (volume->mount) set_mount_point_id( volume->mount, id, id_len, -1 );
if (drive && drive->mount) set_mount_point_id( drive->mount, id, id_len, drive->drive );
return STATUS_SUCCESS;
}
/* release a volume and delete the corresponding disk device when refcount is 0 */
static unsigned int release_volume( struct volume *volume )
{
unsigned int ret = --volume->ref;
if (!ret)
{
TRACE( "%s udi %s\n", debugstr_guid(&volume->guid), debugstr_a(volume->udi) );
assert( !volume->udi );
list_remove( &volume->entry );
if (volume->mount) delete_mount_point( volume->mount );
delete_disk_device( volume->device );
RtlFreeHeap( GetProcessHeap(), 0, volume );
}
return ret;
}
/* create a new dos drive */
NTSTATUS add_dos_device( int letter, const char *udi, const char *device,
const char *mount_point, enum device_type type )
{
struct dos_drive *drive, *next;
if (letter == -1) /* auto-assign a letter */
{
letter = add_drive( device, type );
if (letter == -1) return STATUS_OBJECT_NAME_COLLISION;
}
else /* simply reset the device symlink */
{
char *path, *p;
if (!(path = get_dosdevices_path( &p ))) return STATUS_NO_MEMORY;
*p = 'a' + letter;
unlink( path );
if (device) symlink( device, path );
}
LIST_FOR_EACH_ENTRY_SAFE( drive, next, &drives_list, struct dos_drive, entry )
{
if (udi && drive->udi && !strcmp( udi, drive->udi ))
{
if (type == drive->type) goto found;
delete_disk_device( drive );
continue;
}
if (drive->drive == letter) delete_disk_device( drive );
}
if (create_disk_device( udi, type, &drive )) return STATUS_NO_MEMORY;
found:
RtlFreeHeap( GetProcessHeap(), 0, drive->unix_device );
drive->unix_device = strdupA( device );
set_drive_letter( drive, letter );
set_unix_mount_point( drive, mount_point );
if (drive->drive != -1)
{
HKEY hkey;
TRACE( "added device %c: udi %s for %s on %s type %u\n",
'a' + drive->drive, wine_dbgstr_a(udi), wine_dbgstr_a(device),
wine_dbgstr_a(mount_point), type );
/* hack: force the drive type in the registry */
if (!RegCreateKeyW( HKEY_LOCAL_MACHINE, drives_keyW, &hkey ))
{
const WCHAR *type_name = drive_types[type];
WCHAR name[3] = {'a',':',0};
name[0] += drive->drive;
if (!type_name[0] && type == DEVICE_HARDDISK) type_name = drive_types[DEVICE_FLOPPY];
if (type_name[0])
RegSetValueExW( hkey, name, 0, REG_SZ, (const BYTE *)type_name,
(strlenW(type_name) + 1) * sizeof(WCHAR) );
else
RegDeleteValueW( hkey, name );
RegCloseKey( hkey );
}
if (udi) send_notify( drive->drive, DBT_DEVICEARRIVAL );
}
return STATUS_SUCCESS;
}
