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130 lines
4.1 KiB
130 lines
4.1 KiB
# This file is part of the TREZOR project.
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#
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# Copyright (C) 2012-2016 Marek Palatinus <slush@satoshilabs.com>
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# Copyright (C) 2012-2016 Pavol Rusnak <stick@satoshilabs.com>
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#
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# This library is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this library. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import print_function
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from . import messages_pb2 as proto
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from .transport import NotImplementedException
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def pin_info(pin):
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print("Device asks for PIN %s" % pin)
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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)
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class DebugLink(object):
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def __init__(self, transport, pin_func=pin_info, button_func=button_press):
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self.transport = transport
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self.transport.session_begin()
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self.pin_func = pin_func
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self.button_func = button_func
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def close(self):
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self.transport.session_end()
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self.transport.close()
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def _call(self, msg, nowait=False):
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print("DEBUGLINK SEND", pprint(msg))
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self.transport.write(msg)
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if nowait:
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return
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ret = self.transport.read_blocking()
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print("DEBUGLINK RECV", pprint(ret))
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return ret
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def read_pin(self):
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obj = self._call(proto.DebugLinkGetState())
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print("Read PIN:", obj.pin)
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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()
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pin_encoded = self.encode_pin(pin)
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self.pin_func(pin_encoded)
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return pin_encoded
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def encode_pin(self, pin):
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_, matrix = self.read_pin()
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# Now we have real PIN and PIN matrix.
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# We have to encode that into encoded pin,
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# because application must send back positions
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# 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)
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return pin_encoded
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def read_layout(self):
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obj = self._call(proto.DebugLinkGetState())
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return obj.layout
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def read_mnemonic(self):
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obj = self._call(proto.DebugLinkGetState())
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return obj.mnemonic
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def read_node(self):
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obj = self._call(proto.DebugLinkGetState())
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return obj.node
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def read_recovery_word(self):
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obj = self._call(proto.DebugLinkGetState())
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return (obj.recovery_fake_word, obj.recovery_word_pos)
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def read_reset_word(self):
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obj = self._call(proto.DebugLinkGetState())
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return obj.reset_word
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def read_reset_entropy(self):
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obj = self._call(proto.DebugLinkGetState())
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return obj.reset_entropy
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def read_passphrase_protection(self):
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obj = self._call(proto.DebugLinkGetState())
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return obj.passphrase_protection
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def press_button(self, yes_no):
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print("Pressing", yes_no)
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self.button_func(yes_no)
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self._call(proto.DebugLinkDecision(yes_no=yes_no), nowait=True)
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def press_yes(self):
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self.press_button(True)
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def press_no(self):
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self.press_button(False)
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def stop(self):
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self._call(proto.DebugLinkStop(), nowait=True)
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def memory_read(self, address, length):
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obj = self._call(proto.DebugLinkMemoryRead(address=address, length=length))
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return obj.memory
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def memory_write(self, address, memory, flash=False):
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self._call(proto.DebugLinkMemoryWrite(address=address, memory=memory, flash=flash), nowait=True)
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def flash_erase(self, sector):
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obj = self._call(proto.DebugLinkFlashErase(sector=sector), nowait=True)
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