def _core_machine_id(self, request, response):
serial = ''
machine_name = platform.uname()[1]
if has_windll:
from ctypes import wintypes
k32 = ctypes.windll.kernel32
sys_dir = ctypes.create_unicode_buffer(260)
if not k32.GetSystemDirectoryW(ctypes.byref(sys_dir), 260):
return ERROR_FAILURE_WINDOWS
vol_buf = ctypes.create_unicode_buffer(260)
fs_buf = ctypes.create_unicode_buffer(260)
serial_num = wintypes.DWORD(0)
if not k32.GetVolumeInformationW(ctypes.c_wchar_p(sys_dir.value[:3]),
vol_buf, ctypes.sizeof(vol_buf), ctypes.byref(serial_num), None,
None, fs_buf, ctypes.sizeof(fs_buf)):
return ERROR_FAILURE_WINDOWS
serial_num = serial_num.value
serial = "{0:04x}-{1:04x}".format((serial_num >> 16) & 0xFFFF, serial_num & 0xFFFF)
else:
serial = get_hdd_label()
response += tlv_pack(TLV_TYPE_MACHINE_ID, "%s:%s" % (serial, machine_name))
return ERROR_SUCCESS, response
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