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trezorctl: firmware_update -e erases firmware (first 32K; rendering it unusable)

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Pavol Rusnak 2018-01-09 12:12:32 +01:00
parent 0c5eac2f39
commit e618402429
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GPG Key ID: 91F3B339B9A02A3D
1 changed files with 5 additions and 2 deletions
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7
trezorctl
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@ -372,8 +372,9 @@ def backup_device(connect):
@click.option('-u', '--url') @click.option('-u', '--url')
@click.option('-v', '--version') @click.option('-v', '--version')
@click.option('-s', '--skip-check', is_flag=True) @click.option('-s', '--skip-check', is_flag=True)
@click.option('-e', '--erase', is_flag=True)
@click.pass_obj @click.pass_obj
def firmware_update(connect, filename, url, version, skip_check): def firmware_update(connect, filename, url, version, skip_check, erase):
if filename: if filename:
fp = open(filename, 'rb').read() fp = open(filename, 'rb').read()
elif url: elif url:
@ -381,6 +382,8 @@ def firmware_update(connect, filename, url, version, skip_check):
click.echo('Downloading from', url) click.echo('Downloading from', url)
r = requests.get(url) r = requests.get(url)
fp = r.content fp = r.content
elif erase:
fp = 32768 * b'\xFF'
else: else:
import requests import requests
r = requests.get('https://wallet.trezor.io/data/firmware/releases.json') r = requests.get('https://wallet.trezor.io/data/firmware/releases.json')
@ -403,7 +406,7 @@ def firmware_update(connect, filename, url, version, skip_check):
r = requests.get(url) r = requests.get(url)
fp = r.content fp = r.content
if not skip_check: if not skip_check and not erase:
if fp[:8] == b'54525a52' or fp[:8] == b'54525a56': if fp[:8] == b'54525a52' or fp[:8] == b'54525a56':
fp = binascii.unhexlify(fp) fp = binascii.unhexlify(fp)
if fp[:4] != b'TRZR' and fp[:4] != b'TRZV': if fp[:4] != b'TRZR' and fp[:4] != b'TRZV':