Files
chipsec-chipsec/chipsec/utilcmd/tpm_cmd.py
T
Sae86 bd9cfe0b95 Move docstring from class
Update usage in argparser
    Update for more than one class

Signed-off-by: Sae86 <sara.batllori@intel.com>
2021-09-28 10:20:55 -07:00

100 lines
3.4 KiB
Python

# CHIPSEC: Platform Security Assessment Framework
# Copyright (c) 2017, Google Inc
# Copyright (c) 2010-2021, Intel Corporation
#
# 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.
#
#You should have received a copy of the GNU General Public License
#along with this program; if not, write to the Free Software
#Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
#Contact information:
#chipsec@intel.com
#
"""
>>> chipsec_util tpm parse_log <file>
>>> chipsec_util tpm state <locality>
>>> chipsec_util tpm command <commandName> <locality> <command_parameters>
locality: 0 | 1 | 2 | 3 | 4
commands - parameters:
pccrread - pcr number ( 0 - 23 )
nvread - Index, Offset, Size
startup - startup type ( 1 - 3 )
continueselftest
getcap - Capabilities Area, Size of Sub-capabilities, Sub-capabilities
forceclear
Examples:
>>> chipsec_util tpm parse_log binary_bios_measurements
>>> chipsec_util tpm state 0
>>> chipsec_util tpm command pcrread 0 17
>>> chipsec_util tpm command continueselftest 0
"""
from chipsec.command import BaseCommand
from chipsec.hal import tpm_eventlog
from chipsec.hal import tpm
from chipsec.exceptions import TpmRuntimeError
from argparse import ArgumentParser
class TPMCommand(BaseCommand):
no_driver_cmd = ['parse_log']
def requires_driver(self):
parser = ArgumentParser(usage=__doc__)
subparsers = parser.add_subparsers()
parser_parse = subparsers.add_parser('parse_log')
parser_parse.add_argument('file', type=str, help='File name')
parser_parse.set_defaults(func=self.tpm_parse)
parser_command = subparsers.add_parser('command')
parser_command.add_argument('command_name', type=str, help='Command')
parser_command.add_argument('locality', type=str, choices=['0','1','2','3','4'], help='Locality')
parser_command.add_argument('command_parameters', nargs='*', type=int, help='Command Parameters')
parser_command.set_defaults(func=self.tpm_command)
parser_state = subparsers.add_parser('state')
parser_state.add_argument('locality', type=str, choices=['0','1','2','3','4'], help='Locality')
parser_state.set_defaults(func=self.tpm_state)
parser.parse_args(self.argv[2:], namespace=self)
return True
def tpm_parse(self):
with open(self.file, 'rb') as log:
tpm_eventlog.parse(log)
def tpm_command(self):
self._tpm.command( self.command_name, self.locality, self.command_parameters )
def tpm_state(self):
self._tpm.dump_access ( self.locality )
self._tpm.dump_status ( self.locality )
self._tpm.dump_didvid ( self.locality )
self._tpm.dump_rid ( self.locality )
self._tpm.dump_intcap ( self.locality )
self._tpm.dump_intenable( self.locality )
def run(self):
if self.func != self.tpm_parse:
try:
self._tpm = tpm.TPM(self.cs)
except TpmRuntimeError as msg:
self.logger.log(msg)
return
self.func()
commands = { 'tpm': TPMCommand }