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#!/usr/bin/env python3
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# simple script to get a vehicle fingerprint.
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# Instructions:
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# - connect to a Panda
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# - run selfdrive/boardd/boardd
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# - launching this script
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# Note: it's very important that the car is in stock mode, in order to collect a complete fingerprint
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# - since some messages are published at low frequency, keep this script running for at least 30s,
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# until all messages are received at least once
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import cereal.messaging as messaging
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logcan = messaging.sub_sock('can')
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msgs = {}
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while True:
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lc = messaging.recv_sock(logcan, True)
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if lc is None:
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continue
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for c in lc.can:
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# read also msgs sent by EON on CAN bus 0x80 and filter out the
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# addr with more than 11 bits
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if c.src % 0x80 == 0 and c.address < 0x800 and c.address not in (0x7df, 0x7e0, 0x7e8):
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msgs[c.address] = len(c.dat)
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fingerprint = ', '.join("%d: %d" % v for v in sorted(msgs.items()))
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print(f"number of messages {len(msgs)}:")
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print(f"fingerprint {fingerprint}")
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