mirror of https://github.com/labapart/gattlib
54 lines
1.7 KiB
Python
54 lines
1.7 KiB
Python
#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# Copyright (c) 2016-2021, Olivier Martin <olivier@labapart.org>
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#
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import re
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from uuid import UUID
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from gattlib import *
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SDP_UUID16 = 0x19
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SDP_UUID32 = 0x1A
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SDP_UUID128 = 0x1C
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GATT_STANDARD_UUID_FORMAT = re.compile("(\S+)-0000-1000-8000-00805f9b34fb", flags=re.IGNORECASE)
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def gattlib_uuid_to_uuid(gattlib_uuid):
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if gattlib_uuid.type == SDP_UUID16:
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return UUID(fields=(gattlib_uuid.value.uuid16, 0x0000, 0x1000, 0x80, 0x00, 0x00805f9b34fb))
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elif gattlib_uuid.type == SDP_UUID32:
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return UUID(fields=(gattlib_uuid.value.uuid32, 0x0000, 0x1000, 0x80, 0x00, 0x00805f9b34fb))
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elif gattlib_uuid.type == SDP_UUID128:
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data = bytes(gattlib_uuid.value.uuid128.data)
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return UUID(bytes=data)
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else:
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return ValueError("Gattlib UUID not recognized (type:0x%x)" % gattlib_uuid.type)
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def gattlib_uuid_to_int(gattlib_uuid):
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if gattlib_uuid.type == SDP_UUID16:
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return gattlib_uuid.value.uuid16
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elif gattlib_uuid.type == SDP_UUID32:
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return gattlib_uuid.value.uuid32
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elif gattlib_uuid.type == SDP_UUID128:
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data = bytes(gattlib_uuid.value.uuid128.data)
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return int.from_bytes(data, byteorder='big')
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else:
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return ValueError("Gattlib UUID not recognized (type:0x%x)" % gattlib_uuid.type)
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def gattlib_uuid_str_to_int(uuid_str):
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# Check if the string could already encode a UUID16 or UUID32
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if len(uuid_str) <= 8:
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return int(uuid_str, 16)
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# Check if it is a standard UUID or not
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match = GATT_STANDARD_UUID_FORMAT.search(uuid_str)
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if match:
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return int(match.group(1), 16)
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else:
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return UUID(uuid_str).int
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