mirror of
https://github.com/chipsec/chipsec
synced 2026-06-08 13:31:00 +00:00
Nathaniel Mitchell
55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
# CHIPSEC: Platform Security Assessment Framework
|
|
# Copyright (c) 2017, Google
|
|
#
|
|
# This program is free software; you can redistribute it and/or
|
|
# modify it under the terms of the GNU General Public License
|
|
# as published by the Free Software Foundation; Version 2.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
|
|
import os
|
|
import struct
|
|
import tempfile
|
|
import unittest
|
|
|
|
from tests.software import mock_helper, util
|
|
|
|
|
|
class TestTpmEventLogChipsecUtil(util.TestChipsecUtil):
|
|
"""Test the tpm commands exposed by chipsec_utils."""
|
|
|
|
def _tpm12_event(self, pcr_index, event_type, digest, event):
|
|
_fmt = "II20sI"
|
|
event_size = len(event)
|
|
header = struct.pack(_fmt, pcr_index, event_type, digest, event_size)
|
|
return header + event
|
|
|
|
def _parse_eventlog(self, events):
|
|
fileno, binary_event_log = tempfile.mkstemp()
|
|
for event in events:
|
|
os.write(fileno, event)
|
|
os.close(fileno)
|
|
self._chipsec_util("tpm parse_log {}".format(binary_event_log))
|
|
os.remove(binary_event_log)
|
|
|
|
def test_tpm_eventlog_basic(self):
|
|
empty_event = self._tpm12_event(0x0, 0x0, b"\x00" *20, b"")
|
|
self._parse_eventlog([empty_event])
|
|
self.assertIn(b"EV_PREBOOT_CERT", self.log)
|
|
|
|
def test_tpm_eventlog_firmware_blob(self):
|
|
data = struct.pack("QL", 0xABABABABFEFEFEFE, 0x12345678)
|
|
blob_event = self._tpm12_event(0x0, 0x80000008, b"\x00" *20, data)
|
|
self._parse_eventlog([blob_event])
|
|
self.assertIn(b"EV_EFI_PLATFORM_FIRMWARE_BLOB", self.log)
|
|
self._assertLogValue("base", "0xababababfefefefe")
|
|
self._assertLogValue("length", "0x12345678")
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|