linux-kernel - [PATCH v2 2/2] selftests: tpm: add async space test with noneexisting handle

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Message-Id: <20220111055228.1830-2-tstruk@gmail.com>
Date:   Mon, 10 Jan 2022 21:52:28 -0800
From:   Tadeusz Struk <tstruk@...il.com>
To:     jarkko@...nel.org
Cc:     Tadeusz Struk <tstruk@...il.com>, Shuah Khan <shuah@...nel.org>,
        linux-integrity@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/2] selftests: tpm: add async space test with noneexisting handle

Add a test for /dev/tpmrm0 in async mode that checks if
the code handles invalid handles correctly.

Cc: Jarkko Sakkinen <jarkko@...nel.org>
Cc: Shuah Khan <shuah@...nel.org>
Cc: <linux-integrity@...r.kernel.org>
Cc: <linux-kselftest@...r.kernel.org>
Cc: <linux-kernel@...r.kernel.org>
Signed-off-by: Tadeusz Struk <tstruk@...il.com>
---
Changes in v2:
- Updated commit message
---
 tools/testing/selftests/tpm2/tpm2_tests.py | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/tools/testing/selftests/tpm2/tpm2_tests.py b/tools/testing/selftests/tpm2/tpm2_tests.py
index 9d764306887b..b373b0936e40 100644
--- a/tools/testing/selftests/tpm2/tpm2_tests.py
+++ b/tools/testing/selftests/tpm2/tpm2_tests.py
@@ -302,3 +302,19 @@ class AsyncTest(unittest.TestCase):
         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()
+
+    def test_flush_invlid_context(self):
+        log = logging.getLogger(__name__)
+        log.debug(sys._getframe().f_code.co_name)
+
+        async_client = tpm2.Client(tpm2.Client.FLAG_SPACE | tpm2.Client.FLAG_NONBLOCK)
+        log.debug("Calling flush_context passing in an invalid handle ")
+        handle = 0x80123456
+        rc = 0
+        try:
+            async_client.flush_context(handle)
+        except OSError as e:
+            rc = e.errno
+
+        self.assertEqual(rc, 22)
+        async_client.close()
-- 
2.30.2