mirror of
https://github.com/trezor/trezor-firmware.git
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131 lines
5.0 KiB
Python
131 lines
5.0 KiB
Python
# This file is part of the Trezor project.
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#
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# Copyright (C) 2012-2019 SatoshiLabs and contributors
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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 version 3
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# as published by the Free Software Foundation.
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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 License along with this library.
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# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
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import time
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import pytest
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from trezorlib import messages as proto
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from trezorlib.exceptions import PinException
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# FIXME TODO Add passphrase tests
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@pytest.mark.skip_t2
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class TestProtectCall:
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def _some_protected_call(self, client, button, pin, passphrase):
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# This method perform any call which have protection in the device
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res = client.ping(
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"random data",
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button_protection=button,
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pin_protection=pin,
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passphrase_protection=passphrase,
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)
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assert res == "random data"
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@pytest.mark.setup_client(pin="1234", passphrase=True)
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def test_expected_responses(self, client):
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# This is low-level test of set_expected_responses()
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# feature of debugging client
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with pytest.raises(AssertionError), client:
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# Scenario 1 - Received unexpected message
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client.set_expected_responses([])
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self._some_protected_call(client, True, True, True)
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with pytest.raises(AssertionError), client:
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# Scenario 2 - Received other than expected message
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client.set_expected_responses([proto.Success()])
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self._some_protected_call(client, True, True, True)
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with pytest.raises(AssertionError), client:
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# Scenario 3 - Not received expected message
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client.set_expected_responses(
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[proto.ButtonRequest(), proto.Success(), proto.Success()]
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) # This is expected, but not received
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self._some_protected_call(client, True, False, False)
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with pytest.raises(AssertionError), client:
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# Scenario 4 - Received what expected
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client.set_expected_responses(
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[
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proto.ButtonRequest(),
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proto.PinMatrixRequest(),
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proto.PassphraseRequest(),
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proto.Success(message="random data"),
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]
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)
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self._some_protected_call(client, True, True, True)
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with pytest.raises(AssertionError), client:
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# Scenario 5 - Failed message by field filter
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client.set_expected_responses(
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[proto.ButtonRequest(), proto.Success(message="wrong data")]
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)
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self._some_protected_call(client, True, True, True)
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def test_no_protection(self, client):
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with client:
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assert client.debug.read_pin()[0] is None
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client.set_expected_responses([proto.Success()])
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self._some_protected_call(client, False, True, True)
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@pytest.mark.setup_client(pin="1234", passphrase=True)
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def test_pin(self, client):
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with client:
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assert client.debug.read_pin()[0] == "1234"
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client.setup_debuglink(button=True, pin_correct=True)
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client.set_expected_responses(
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[proto.ButtonRequest(), proto.PinMatrixRequest(), proto.Success()]
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)
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self._some_protected_call(client, True, True, False)
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@pytest.mark.setup_client(pin="1234", passphrase=True)
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def test_incorrect_pin(self, client):
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client.setup_debuglink(button=True, pin_correct=False)
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with pytest.raises(PinException):
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self._some_protected_call(client, False, True, False)
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@pytest.mark.setup_client(pin="1234", passphrase=True)
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def test_cancelled_pin(self, client):
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client.setup_debuglink(button=True, pin_correct=False) # PIN cancel
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with pytest.raises(PinException):
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self._some_protected_call(client, False, True, False)
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@pytest.mark.setup_client(pin="1234", passphrase=True)
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def test_exponential_backoff_with_reboot(self, client):
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client.setup_debuglink(button=True, pin_correct=False)
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def test_backoff(attempts, start):
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if attempts <= 1:
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expected = 0
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else:
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expected = (2 ** (attempts - 1)) - 1
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got = round(time.time() - start, 2)
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msg = "Pin delay expected to be at least %s seconds, got %s" % (
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expected,
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got,
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)
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print(msg)
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assert got >= expected
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for attempt in range(1, 4):
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start = time.time()
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with pytest.raises(PinException):
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self._some_protected_call(client, False, True, False)
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test_backoff(attempt, start)
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