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authorTadeusz Struk <tadeusz.struk@intel.com>2019-12-12 09:48:53 -0800
committerJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>2019-12-17 12:20:12 +0200
commit8f84bddcfac9117564721ead494db7a604fdf861 (patch)
tree3bdab5b6f54ebdc85b127de9976511e07afe1318 /tools/testing/selftests
parenttpm: fix invalid locking in NONBLOCKING mode (diff)
downloadlinux-dev-8f84bddcfac9117564721ead494db7a604fdf861.tar.xz
linux-dev-8f84bddcfac9117564721ead494db7a604fdf861.zip
tpm: selftest: add test covering async mode
Add a test that sends a tpm cmd in an async mode. Currently there is a gap in test coverage with regards to this functionality. Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'tools/testing/selftests')
-rwxr-xr-xtools/testing/selftests/tpm2/test_smoke.sh1
-rw-r--r--tools/testing/selftests/tpm2/tpm2.py19
-rw-r--r--tools/testing/selftests/tpm2/tpm2_tests.py13
3 files changed, 31 insertions, 2 deletions
diff --git a/tools/testing/selftests/tpm2/test_smoke.sh b/tools/testing/selftests/tpm2/test_smoke.sh
index 80521d46220c..cb54ab637ea6 100755
--- a/tools/testing/selftests/tpm2/test_smoke.sh
+++ b/tools/testing/selftests/tpm2/test_smoke.sh
@@ -2,3 +2,4 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
python -m unittest -v tpm2_tests.SmokeTest
+python -m unittest -v tpm2_tests.AsyncTest
diff --git a/tools/testing/selftests/tpm2/tpm2.py b/tools/testing/selftests/tpm2/tpm2.py
index 828c18584624..d0fcb66a88a6 100644
--- a/tools/testing/selftests/tpm2/tpm2.py
+++ b/tools/testing/selftests/tpm2/tpm2.py
@@ -6,8 +6,8 @@ import socket
import struct
import sys
import unittest
-from fcntl import ioctl
-
+import fcntl
+import select
TPM2_ST_NO_SESSIONS = 0x8001
TPM2_ST_SESSIONS = 0x8002
@@ -352,6 +352,7 @@ def hex_dump(d):
class Client:
FLAG_DEBUG = 0x01
FLAG_SPACE = 0x02
+ FLAG_NONBLOCK = 0x04
TPM_IOC_NEW_SPACE = 0xa200
def __init__(self, flags = 0):
@@ -362,13 +363,27 @@ class Client:
else:
self.tpm = open('/dev/tpmrm0', 'r+b', buffering=0)
+ if (self.flags & Client.FLAG_NONBLOCK):
+ flags = fcntl.fcntl(self.tpm, fcntl.F_GETFL)
+ flags |= os.O_NONBLOCK
+ fcntl.fcntl(self.tpm, fcntl.F_SETFL, flags)
+ self.tpm_poll = select.poll()
+
def close(self):
self.tpm.close()
def send_cmd(self, cmd):
self.tpm.write(cmd)
+
+ if (self.flags & Client.FLAG_NONBLOCK):
+ self.tpm_poll.register(self.tpm, select.POLLIN)
+ self.tpm_poll.poll(10000)
+
rsp = self.tpm.read()
+ if (self.flags & Client.FLAG_NONBLOCK):
+ self.tpm_poll.unregister(self.tpm)
+
if (self.flags & Client.FLAG_DEBUG) != 0:
sys.stderr.write('cmd' + os.linesep)
sys.stderr.write(hex_dump(cmd) + os.linesep)
diff --git a/tools/testing/selftests/tpm2/tpm2_tests.py b/tools/testing/selftests/tpm2/tpm2_tests.py
index d4973be53493..728be7c69b76 100644
--- a/tools/testing/selftests/tpm2/tpm2_tests.py
+++ b/tools/testing/selftests/tpm2/tpm2_tests.py
@@ -288,3 +288,16 @@ class SpaceTest(unittest.TestCase):
self.assertEqual(rc, tpm2.TPM2_RC_COMMAND_CODE |
tpm2.TSS2_RESMGR_TPM_RC_LAYER)
+
+class AsyncTest(unittest.TestCase):
+ def setUp(self):
+ logging.basicConfig(filename='AsyncTest.log', level=logging.DEBUG)
+
+ def test_async(self):
+ log = logging.getLogger(__name__)
+ log.debug(sys._getframe().f_code.co_name)
+
+ async_client = tpm2.Client(tpm2.Client.FLAG_NONBLOCK)
+ log.debug("Calling get_cap in a NON_BLOCKING mode")
+ async_client.get_cap(tpm2.TPM2_CAP_HANDLES, tpm2.HR_LOADED_SESSION)
+ async_client.close()