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Subject[PATCH] selftests/tpm2: tpm2-parse-error.py
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Add a script to quickly parse any TPM error code. This can be useful, e.g.
when parsing klog output when TPM fails in an internal kernel operation.

Example transcript:

$ python3 tpm2-parse-error.py 0x1C4
TPM_RC_VALUE: rc=0x000001c4

Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
---
tools/testing/selftests/tpm2/Makefile | 2 +-
.../testing/selftests/tpm2/tpm2-parse-error.py | 17 +++++++++++++++++
2 files changed, 18 insertions(+), 1 deletion(-)
create mode 100644 tools/testing/selftests/tpm2/tpm2-parse-error.py

diff --git a/tools/testing/selftests/tpm2/Makefile b/tools/testing/selftests/tpm2/Makefile
index a9bf9459fb25..b2c0504bcca6 100644
--- a/tools/testing/selftests/tpm2/Makefile
+++ b/tools/testing/selftests/tpm2/Makefile
@@ -2,4 +2,4 @@
include ../lib.mk

TEST_PROGS := test_smoke.sh test_space.sh test_async.sh
-TEST_PROGS_EXTENDED := tpm2.py tpm2_tests.py
+TEST_PROGS_EXTENDED := tpm2.py tpm2_tests.py tpm2-parse-error
diff --git a/tools/testing/selftests/tpm2/tpm2-parse-error.py b/tools/testing/selftests/tpm2/tpm2-parse-error.py
new file mode 100644
index 000000000000..8eed72681af1
--- /dev/null
+++ b/tools/testing/selftests/tpm2/tpm2-parse-error.py
@@ -0,0 +1,17 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+
+from argparse import ArgumentParser
+from argparse import FileType
+import os
+import sys
+import tpm2
+
+def main():
+ parser = ArgumentParser(description='Parse a TPM error code')
+ parser.add_argument('rc', type=(lambda x: int(x, 0)))
+ args = parser.parse_args()
+ print(str(tpm2.ProtocolError(None, args.rc)))
+
+if __name__ == '__main__':
+ main()
--
2.39.2
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