python-trezor/trezorlib/debuglink.py

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from __future__ import print_function
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from . import messages_pb2 as proto
from .transport import NotImplementedException
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def pin_info(pin):
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print("Device asks for PIN %s" % pin)
def button_press(yes_no):
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print("User pressed", '"y"' if yes_no else '"n"')
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def pprint(msg):
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return "<%s> (%d bytes):\n%s" % (msg.__class__.__name__, msg.ByteSize(), msg)
class DebugLink(object):
def __init__(self, transport, pin_func=pin_info, button_func=button_press):
self.transport = transport
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self.pin_func = pin_func
self.button_func = button_func
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def close(self):
self.transport.close()
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def _call(self, msg, nowait=False):
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print("DEBUGLINK SEND", pprint(msg))
self.transport.write(msg)
if nowait:
return
ret = self.transport.read_blocking()
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print("DEBUGLINK RECV", pprint(ret))
return ret
def read_pin(self):
obj = self._call(proto.DebugLinkGetState())
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print("Read PIN:", obj.pin)
print("Read matrix:", obj.matrix)
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return (obj.pin, obj.matrix)
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def read_pin_encoded(self):
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pin, _ = self.read_pin()
pin_encoded = self.encode_pin(pin)
self.pin_func(pin_encoded)
return pin_encoded
def encode_pin(self, pin):
_, matrix = self.read_pin()
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# Now we have real PIN and PIN matrix.
# We have to encode that into encoded pin,
# because application must send back positions
# on keypad, not a real PIN.
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pin_encoded = ''.join([str(matrix.index(p) + 1) for p in pin])
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print("Encoded PIN:", pin_encoded)
return pin_encoded
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def read_layout(self):
obj = self._call(proto.DebugLinkGetState())
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return obj.layout
def read_mnemonic(self):
obj = self._call(proto.DebugLinkGetState())
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return obj.mnemonic
def read_node(self):
obj = self._call(proto.DebugLinkGetState())
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return obj.node
def read_recovery_word(self):
obj = self._call(proto.DebugLinkGetState())
return (obj.recovery_fake_word, obj.recovery_word_pos)
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def read_reset_word(self):
obj = self._call(proto.DebugLinkGetState())
return obj.reset_word
def read_reset_entropy(self):
obj = self._call(proto.DebugLinkGetState())
return obj.reset_entropy
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def read_passphrase_protection(self):
obj = self._call(proto.DebugLinkGetState())
return obj.passphrase_protection
def press_button(self, yes_no):
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print("Pressing", yes_no)
self.button_func(yes_no)
self._call(proto.DebugLinkDecision(yes_no=yes_no), nowait=True)
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def press_yes(self):
self.press_button(True)
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def press_no(self):
self.press_button(False)
def stop(self):
self._call(proto.DebugLinkStop(), nowait=True)
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def memory_read(self, address, length):
obj = self._call(proto.DebugLinkMemoryRead(address=address, length=length))
return obj.memory
def memory_write(self, address, memory, flash=False):
self._call(proto.DebugLinkMemoryWrite(address=address, memory=memory, flash=flash), nowait=True)
def flash_erase(self, sector):
obj = self._call(proto.DebugLinkFlashErase(sector=sector), nowait=True)