vboot_reference: add hardware_TPMFirmware test case into vboot_reference repo

autotest/hardware_TPMFirmware/hardware_TPMFirmware.py

+# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import logging, os, re, sys, shutil
+from autotest_lib.client.bin import test, utils
+
+class hardware_TPMFirmware(test.test):
+    """
+    Test of TPM functionality needed in firmware (client side of the test).
+    See also server/site_tests/hardware_TPMFirmwareServer.
+    """
+    version = 1
+    preserve_srcdir = True
+
+    # Cross-compiles TLCL test suite and other needed code.
+    # TODO(semenzato): tpm_takeownership is currently available by making
+    # tpm-tools an RDEPEND in the autotest ebuild.  See that file for a
+    # better way.
+    def setup(self):
+        sysroot = os.environ['SYSROOT']
+        bin_path = os.path.join(sysroot, 'usr/sbin/tpm_takeownership')
+        shutil.copy(bin_path, self.bindir)
+        utils.make('-C %s' % self.srcdir)
+
+
+    # Runs a command, logs the output, and returns the exit status.
+    def tpm_run(self, cmd, ignore_status=False):
+        output = utils.run(cmd, ignore_status=ignore_status)
+        logging.info(output)
+        self.job.set_state("client_status", output.exit_status)
+
+
+    # Sets up the system (if it isn't already) to run the tpm binaries.  This
+    # is mostly needed after a reboot.  We don't rely on the system booting in
+    # any particular state.
+    def tpm_setup(self, with_tcsd=False):
+        utils.run('mknod /dev/tpm c 10 224', ignore_status=True)
+        utils.run('mknod /dev/tpm0 c 10 224', ignore_status=True)
+        utils.run('modprobe tpm_tis force=1 interrupts=0', ignore_status=True)
+
+        if (with_tcsd):
+            utils.run('/usr/sbin/tcsd')
+        else:
+            # It will be a problem if upstart automatically restarts tcsd.
+            utils.run('pkill tcsd', ignore_status=True)
+
+
+    def run_once(self, subtest='None'):
+        logging.info("Running TPM firmware client subtest %s", subtest)
+        if (subtest == 'setup'):
+            self.tpm_setup()
+            self.tpm_write_status(0)
+        elif (subtest == 'takeownership'):
+            self.tpm_setup(with_tcsd=True)
+            own_cmd = os.path.join(self.bindir, "tpm_takeownership -y -z")
+            self.tpm_run(own_cmd)
+        else:
+            self.tpm_setup()
+            cmd = os.path.join(self.srcdir, subtest)
+            self.tpm_run(cmd, ignore_status=True)