Files
chipsec-chipsec/chipsec/utilcmd/smbios_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

107 lines
4.1 KiB
Python

#CHIPSEC: Platform Security Assessment Framework
#Copyright (c) 2019-2021, 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 smbios entrypoint
>>> chipsec_util smbios get [raw|decoded] [type]
Examples:
>>> chipsec_util smbios entrypoint
>>> chipsec_util smbios get raw
"""
from argparse import ArgumentParser
from time import time
from chipsec.command import BaseCommand
from chipsec.hal.smbios import SMBIOS
from chipsec.logger import print_buffer
from chipsec.defines import bytestostring
class smbios_cmd(BaseCommand):
def requires_driver(self):
parser = ArgumentParser(prog='chipsec_util smbios', usage=__doc__)
subparsers = parser.add_subparsers()
parser_entrypoint = subparsers.add_parser('entrypoint')
parser_entrypoint.set_defaults(func=self.smbios_ep)
parser_get = subparsers.add_parser('get')
parser_get.add_argument('method', choices=['raw', 'decoded'], default='raw', nargs='?', \
help='Get raw data or decoded data. Decoded data may not exist for all structures')
parser_get.add_argument('type', type=int, default=None, nargs='?', \
help='SMBIOS type to search for')
parser_get.add_argument('-f', '--force', action='store_true', dest='_force_32', \
help='Force reading from 32bit structures')
parser_get.set_defaults(func=self.smbios_get)
parser.parse_args(self.argv[2:], namespace=self)
return True
def smbios_ep(self):
self.logger.log('[CHIPSEC] SMBIOS Entry Point Structures')
if self.smbios.smbios_2_pa is not None:
self.logger.log(self.smbios.smbios_2_ep)
if self.smbios.smbios_3_pa is not None:
self.logger.log(self.smbios.smbios_3_ep)
def smbios_get(self):
if self.method == 'raw':
self.logger.log('[CHIPSEC] Dumping all requested structures in raw format')
structs = self.smbios.get_raw_structs(self.type, self._force_32)
elif self.method == 'decoded':
self.logger.log('[CHIPSEC] Dumping all requested structures in decoded format')
structs = self.smbios.get_decoded_structs(self.type, self._force_32)
if structs is None:
self.logger.log('[CHIPSEC] Error getting data')
return
if len(structs) == 0:
self.logger.log('[CHIPSEC] Structures not found')
return
for data in structs:
if self.method == 'raw':
header = self.smbios.get_header(data)
if header is not None:
self.logger.log(header)
self.logger.log('[CHIPSEC] Raw Data')
print_buffer(bytestostring(data))
elif self.method == 'decoded':
self.logger.log(data)
self.logger.log('==================================================================')
def run(self):
t = time()
# Create and initialize SMBIOS object for commands to use
try:
self.logger.log('[CHIPSEC] Attempting to detect SMBIOS structures')
self.smbios = SMBIOS(self.cs)
found = self.smbios.find_smbios_table()
if not found:
self.logger.log('[CHIPSEC] Unable to detect SMBIOS structure(s)')
return
except Exception as e:
self.logger.log(e)
return
self.func()
self.logger.log('[CHIPSEC] (smbios) time elapsed {:.3f}'.format(time() -t))
commands = {'smbios': smbios_cmd}