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Add checking of space permissions and kernel space unique ID

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Change-Id: I7a77a7cd9d51238da314b09b3ac18b9dabeaa610

BUG=6061
TEST=successfully built and ran the autotest

Review URL: http://codereview.chromium.org/3593012
This commit is contained in:
Luigi Semenzato
2010-10-12 11:31:45 -07:00
parent c4e92af85a
commit 7bfabc008c
1 changed files with 55 additions and 18 deletions
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73
autotest/client/hardware_TPMCheck/hardware_TPMCheck.py
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@@ -2,10 +2,23 @@
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os, re
import logging, os, re
from autotest_lib.client.bin import test, utils
from autotest_lib.client.common_lib import error
def old_or_missing_firmware_version():
f = open("/sys/devices/platform/chromeos_acpi/FWID")
if not f:
return True
version = f.readline().strip()
logging.info("firmware version: %s", version)
# Expect a dot-separated list of 6 elements. Discard 1st element.
v = re.split("\.", version)[1:]
w = re.split("\.", "any-nickname.03.60.1118.0036.")[1:]
if len(v) != len(w):
raise error.TestError("malformed firmware version %s" % version)
return v < w
def dict_from_command(command):
dict = {}
out = os.popen(command)
@@ -19,29 +32,53 @@ def dict_from_command(command):
def expect(d, key, value):
if (d[key] != value):
utils.system("start tcsd", ignore_status=True)
raise error.TestError("expecting %s = %s, receiving %s = %s" %
raise error.TestError("expecting %s = %s, observing %s = %s" %
(key, value, key, d[key]))
def checkp(space, permission):
c = "tpmc getp %s" % space
l = os.popen(c).readline()
if (not re.match(".*%s" % permission, l)):
raise error.TestError("invalid response to %s: %s" % (c, l))
class hardware_TPMCheck(test.test):
version = 1
def run_once(self):
utils.system("stop tcsd", ignore_status=True)
d = dict_from_command("tpmc getvf");
expect(d, "deactivated", "0")
expect(d, "physicalPresence", "0")
expect(d, "physicalPresenceLock", "1")
expect(d, "bGlobalLock", "1")
if old_or_missing_firmware_version():
logging.warning("skipping test because firmware " +
"version missing or deemed too old")
return
d = dict_from_command("tpmc getpf");
expect(d, "disable", "0")
expect(d, "ownership", "1")
expect(d, "deactivated", "0")
expect(d, "physicalPresenceHWEnable", "0")
expect(d, "physicalPresenceCMDEnable", "1")
expect(d, "physicalPresenceLifetimeLock", "1")
expect(d, "nvLocked", "1")
try:
utils.system("stop tcsd", ignore_status=True)
utils.system("start tcsd", ignore_status=True)
# Check volatile (ST_CLEAR) flags
d = dict_from_command("tpmc getvf");
expect(d, "deactivated", "0")
expect(d, "physicalPresence", "0")
expect(d, "physicalPresenceLock", "1")
expect(d, "bGlobalLock", "1")
# Check permanent flags
d = dict_from_command("tpmc getpf");
expect(d, "disable", "0")
expect(d, "ownership", "1")
expect(d, "deactivated", "0")
expect(d, "physicalPresenceHWEnable", "0")
expect(d, "physicalPresenceCMDEnable", "1")
expect(d, "physicalPresenceLifetimeLock", "1")
expect(d, "nvLocked", "1")
# Check space permissions
checkp("0x1007", "0x8001")
checkp("0x1008", "0x1")
# Check kernel space UID
l = os.popen("tpmc read 0x1008 0x5").readline()
if (not re.match(".* 4c 57 52 47$", l)):
raise error.TestError("invalid kernel space UID: %s" % l)
finally:
utils.system("start tcsd", ignore_status=True)