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authorTadeusz Struk <tadeusz.struk@intel.com>2019-02-12 15:42:10 -0800
committerJames Morris <james.morris@microsoft.com>2019-04-08 15:58:55 -0700
commitf1a0ba6cccff75d882204cae1f154f17620b3c4a (patch)
tree4430b05df94565df0e37455729911102c9b58421
parentbe24b37e22c20cbaa891971616784dd0f35211e8 (diff)
download96b-common-f1a0ba6cccff75d882204cae1f154f17620b3c4a.tar.gz
selftests/tpm2: Extend tests to cover partial reads
Three new tests added: 1. Send get random cmd, read header in 1st read, read the rest in second read - expect success 2. Send get random cmd, read only part of the response, send another get random command, read the response - expect success 3. Send get random cmd followed by another get random cmd, without reading the first response - expect the second cmd to fail with -EBUSY Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: James Morris <james.morris@microsoft.com>
-rw-r--r--tools/testing/selftests/tpm2/tpm2.py1
-rw-r--r--tools/testing/selftests/tpm2/tpm2_tests.py63
2 files changed, 64 insertions, 0 deletions
diff --git a/tools/testing/selftests/tpm2/tpm2.py b/tools/testing/selftests/tpm2/tpm2.py
index 40ea95ce2ead..6fc99ce025b5 100644
--- a/tools/testing/selftests/tpm2/tpm2.py
+++ b/tools/testing/selftests/tpm2/tpm2.py
@@ -22,6 +22,7 @@ TPM2_CC_UNSEAL = 0x015E
TPM2_CC_FLUSH_CONTEXT = 0x0165
TPM2_CC_START_AUTH_SESSION = 0x0176
TPM2_CC_GET_CAPABILITY = 0x017A
+TPM2_CC_GET_RANDOM = 0x017B
TPM2_CC_PCR_READ = 0x017E
TPM2_CC_POLICY_PCR = 0x017F
TPM2_CC_PCR_EXTEND = 0x0182
diff --git a/tools/testing/selftests/tpm2/tpm2_tests.py b/tools/testing/selftests/tpm2/tpm2_tests.py
index 3bb066fea4a0..d4973be53493 100644
--- a/tools/testing/selftests/tpm2/tpm2_tests.py
+++ b/tools/testing/selftests/tpm2/tpm2_tests.py
@@ -158,6 +158,69 @@ class SmokeTest(unittest.TestCase):
pass
self.assertEqual(rejected, True)
+ def test_read_partial_resp(self):
+ try:
+ fmt = '>HIIH'
+ cmd = struct.pack(fmt,
+ tpm2.TPM2_ST_NO_SESSIONS,
+ struct.calcsize(fmt),
+ tpm2.TPM2_CC_GET_RANDOM,
+ 0x20)
+ self.client.tpm.write(cmd)
+ hdr = self.client.tpm.read(10)
+ sz = struct.unpack('>I', hdr[2:6])[0]
+ rsp = self.client.tpm.read()
+ except:
+ pass
+ self.assertEqual(sz, 10 + 2 + 32)
+ self.assertEqual(len(rsp), 2 + 32)
+
+ def test_read_partial_overwrite(self):
+ try:
+ fmt = '>HIIH'
+ cmd = struct.pack(fmt,
+ tpm2.TPM2_ST_NO_SESSIONS,
+ struct.calcsize(fmt),
+ tpm2.TPM2_CC_GET_RANDOM,
+ 0x20)
+ self.client.tpm.write(cmd)
+ # Read part of the respone
+ rsp1 = self.client.tpm.read(15)
+
+ # Send a new cmd
+ self.client.tpm.write(cmd)
+
+ # Read the whole respone
+ rsp2 = self.client.tpm.read()
+ except:
+ pass
+ self.assertEqual(len(rsp1), 15)
+ self.assertEqual(len(rsp2), 10 + 2 + 32)
+
+ def test_send_two_cmds(self):
+ rejected = False
+ try:
+ fmt = '>HIIH'
+ cmd = struct.pack(fmt,
+ tpm2.TPM2_ST_NO_SESSIONS,
+ struct.calcsize(fmt),
+ tpm2.TPM2_CC_GET_RANDOM,
+ 0x20)
+ self.client.tpm.write(cmd)
+
+ # expect the second one to raise -EBUSY error
+ self.client.tpm.write(cmd)
+ rsp = self.client.tpm.read()
+
+ except IOError, e:
+ # read the response
+ rsp = self.client.tpm.read()
+ rejected = True
+ pass
+ except:
+ pass
+ self.assertEqual(rejected, True)
+
class SpaceTest(unittest.TestCase):
def setUp(self):
logging.basicConfig(filename='SpaceTest.log', level=logging.DEBUG)