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releases/describe_signed_firmware: add helpful error msg #1180

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merged 1 commit into from
Feb 22, 2024
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releases/describe_signed_firmware: add helpful error msg #1180

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13 changes: 8 additions & 5 deletions releases/describe_signed_firmware.py
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Original file line number Diff line number Diff line change
Expand Up @@ -54,16 +54,19 @@ def main() -> int:
magic, rest = signed_firmware[:MAGIC_LEN], signed_firmware[MAGIC_LEN:]
sigdata, firmware = rest[:SIGDATA_LEN], rest[SIGDATA_LEN:]

print(
"The following information assumes the provided binary was signed correctly; "
"the signatures are not being verified."
)
if magic == MAGIC_MULTI:
print("This is a Multi-edition firmware.")
elif magic == MAGIC_BTCONLY:
print("This is a Bitcoin-only edition firmware.")
else:
print("Unrecognized firmware edition; magic =", magic.hex())
print(
f"Unrecognized firmware edition; magic = f{magic.hex()}. Maybe you have accidentally invoked this script on an unsigned binary. Make sure to use a signed firmware binary."
)
return 1
print(
"The following information assumes the provided binary was signed correctly; "
"the signatures are not being verified."
)

firmware_padded = firmware + b"\xFF" * (MAX_FIRMWARE_SIZE - len(firmware))

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