On Sat, Nov 27, 2021 at 11:10:52PM -0500, Stefan Berger wrote: > From: Stefan Berger <stefanb@xxxxxxxxxxxxx> > > Reset the dictionary attack lock to avoid the following types of test > failures after running the test 2 times: > > ====================================================================== > ERROR: test_unseal_with_wrong_policy (tpm2_tests.SmokeTest) > ---------------------------------------------------------------------- > Traceback (most recent call last): > File "/root/linux-ima-namespaces/tools/testing/selftests/tpm2/tpm2_tests.py", line 105, in test_unseal_with_wrong_policy > blob = self.client.seal(self.root_key, data, auth, policy_dig) > File "/root/linux-ima-namespaces/tools/testing/selftests/tpm2/tpm2.py", line 620, in seal > rsp = self.send_cmd(cmd) > File "/root/linux-ima-namespaces/tools/testing/selftests/tpm2/tpm2.py", line 397, in send_cmd > raise ProtocolError(cc, rc) > tpm2.ProtocolError: TPM_RC_LOCKOUT: cc=0x00000153, rc=0x00000921 > > Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxxxxx> > --- > tools/testing/selftests/tpm2/tpm2_tests.py | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/tools/testing/selftests/tpm2/tpm2_tests.py b/tools/testing/selftests/tpm2/tpm2_tests.py > index e63a37819978..ad6f54c01adf 100644 > --- a/tools/testing/selftests/tpm2/tpm2_tests.py > +++ b/tools/testing/selftests/tpm2/tpm2_tests.py > @@ -139,6 +139,8 @@ class SmokeTest(unittest.TestCase): > except: > self.client.flush_context(handle) > raise > + finally: > + self.client.reset_da_lock() > > self.assertEqual(rc, tpm2.TPM2_RC_POLICY_FAIL) > > -- > 2.31.1 > I don't agree with this as a DA lock has legit use. This would be adequate for systems dedicated for kernel testing only. We could make this available in the folder where TPM2 tests are: https://git.kernel.org/pub/scm/linux/kernel/git/jarkko/tpm2-scripts.git/tree/tpm2-reset-da-lock /Jarkko
