mirror of
https://github.com/chipsec/chipsec
synced 2026-06-08 13:31:00 +00:00
brentholtsclaw
105 lines
3.6 KiB
Python
105 lines
3.6 KiB
Python
# !/usr/bin/python
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# CHIPSEC: Platform Security Assessment Framework
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# Copyright (c) 2010-2020, Intel Corporation
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; Version 2.
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#
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# This program 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 General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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# Contact information:
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# chipsec@intel.com
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from time import time
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from argparse import ArgumentParser
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from chipsec.command import BaseCommand
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from chipsec.hal.cmos import CMOS, CmosRuntimeError
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class CMOSCommand(BaseCommand):
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"""
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>>> chipsec_util cmos dump
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>>> chipsec_util cmos readl|writel|readh|writeh <byte_offset> [byte_val]
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Examples:
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>>> chipsec_util cmos dump
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>>> chipsec_util cmos readl 0x0
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>>> chipsec_util cmos writeh 0x0 0xCC
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"""
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def requires_driver(self):
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parser = ArgumentParser(usage=CMOSCommand.__doc__)
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parser_offset = ArgumentParser(add_help=False)
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parser_offset.add_argument('offset', type=lambda x: int(x, 0), help="offsets read")
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parser_val = ArgumentParser(add_help=False)
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parser_val.add_argument('value', type=lambda x: int(x, 0), help="value written")
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subparsers = parser.add_subparsers()
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# dump
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parser_dump = subparsers.add_parser('dump')
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parser_dump.set_defaults(func=self.cmos_dump)
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# readl
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parser_readl = subparsers.add_parser('readl', parents=[parser_offset])
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parser_readl.set_defaults(func=self.cmos_readl)
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# writel
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parser_writel = subparsers.add_parser('writel', parents=[parser_offset, parser_val])
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parser_writel.set_defaults(func=self.cmos_writel)
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# readh
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parser_readh = subparsers.add_parser('readh', parents=[parser_offset])
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parser_readh.set_defaults(func=self.cmos_readh)
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# writeh
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parser_writeh = subparsers.add_parser('writeh', parents=[parser_offset, parser_val])
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parser_writeh.set_defaults(func=self.cmos_writeh)
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parser.parse_args(self.argv[2:], namespace=CMOSCommand)
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return True
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def cmos_dump(self):
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self.logger.log("[CHIPSEC] Dumping CMOS memory..")
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self._cmos.dump()
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def cmos_readl(self):
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val = self._cmos.read_cmos_low(self.offset)
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self.logger.log("[CHIPSEC] CMOS low byte 0x%X = 0x%X" % (self.offset, val))
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def cmos_writel(self):
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val = self._cmos.write_cmos_low(self.offset, self.value)
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self.logger.log("[CHIPSEC] CMOS low byte 0x%X = 0x%X" % (self.offset, self.value))
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def cmos_readh(self):
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val = self._cmos.read_cmos_high(self.offset)
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self.logger.log("[CHIPSEC] CMOS high byte 0x%X = 0x%X" % (self.offset, val))
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def cmos_writeh(self):
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self.logger.log("[CHIPSEC] Writing CMOS high byte 0x%X <- 0x%X " % (self.offset, self.value))
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self._cmos.write_cmos_high(self.offset, self.value)
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def run(self):
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t = time()
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try:
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self._cmos = CMOS(self.cs)
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except CmosRuntimeError as msg:
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print(msg)
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return
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self.func()
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self.logger.log("[CHIPSEC] (cmos) time elapsed {:.3f}".format(time() - t))
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commands = {'cmos': CMOSCommand}
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