* [PATCH v2] selftests/tpm2: Open tpm dev in unbuffered mode @ 2019-02-13 16:39 Tadeusz Struk 2019-02-13 16:40 ` [PATCH v3] selftests/tpm2: Extend tests to cover partial reads Tadeusz Struk 0 siblings, 1 reply; 5+ messages in thread From: Tadeusz Struk @ 2019-02-13 16:39 UTC (permalink / raw) To: jarkko.sakkinen Cc: linux-kselftest, shuah, linux-kernel, linux-integrity, linux-security-module, PeterHuewe, jgg In order to have control over how many bytes are read or written the device needs to be opened in unbuffered mode. Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> --- v2: - Changed subject tags to selftests/tpm2: --- tools/testing/selftests/tpm2/tpm2.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/tpm2/tpm2.py b/tools/testing/selftests/tpm2/tpm2.py index 40ea95ce2ead..c2b9f2b1a0ac 100644 --- a/tools/testing/selftests/tpm2/tpm2.py +++ b/tools/testing/selftests/tpm2/tpm2.py @@ -357,9 +357,9 @@ class Client: self.flags = flags if (self.flags & Client.FLAG_SPACE) == 0: - self.tpm = open('/dev/tpm0', 'r+b') + self.tpm = open('/dev/tpm0', 'r+b', buffering=0) else: - self.tpm = open('/dev/tpmrm0', 'r+b') + self.tpm = open('/dev/tpmrm0', 'r+b', buffering=0) def close(self): self.tpm.close() ^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH v3] selftests/tpm2: Extend tests to cover partial reads 2019-02-13 16:39 [PATCH v2] selftests/tpm2: Open tpm dev in unbuffered mode Tadeusz Struk @ 2019-02-13 16:40 ` Tadeusz Struk 2019-02-13 17:19 ` Jarkko Sakkinen 0 siblings, 1 reply; 5+ messages in thread From: Tadeusz Struk @ 2019-02-13 16:40 UTC (permalink / raw) To: jarkko.sakkinen Cc: linux-kselftest, shuah, linux-kernel, linux-integrity, linux-security-module, PeterHuewe, jgg 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> --- v3: - Remove python docstrings v2: - Removed extra logging - Changed subject tag to selftest/tpm2: --- tools/testing/selftests/tpm2/tpm2.py | 1 tools/testing/selftests/tpm2/tpm2_tests.py | 63 ++++++++++++++++++++++++++++ 2 files changed, 64 insertions(+) diff --git a/tools/testing/selftests/tpm2/tpm2.py b/tools/testing/selftests/tpm2/tpm2.py index c2b9f2b1a0ac..828c18584624 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) ^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH v3] selftests/tpm2: Extend tests to cover partial reads 2019-02-13 16:40 ` [PATCH v3] selftests/tpm2: Extend tests to cover partial reads Tadeusz Struk @ 2019-02-13 17:19 ` Jarkko Sakkinen 2019-02-13 17:22 ` Tadeusz Struk 0 siblings, 1 reply; 5+ messages in thread From: Jarkko Sakkinen @ 2019-02-13 17:19 UTC (permalink / raw) To: Tadeusz Struk Cc: linux-kselftest, shuah, linux-kernel, linux-integrity, linux-security-module, PeterHuewe, jgg On Wed, Feb 13, 2019 at 08:40:18AM -0800, Tadeusz Struk wrote: > 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> OK, great, thank you. They are in my master branch now. /Jarkko ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v3] selftests/tpm2: Extend tests to cover partial reads 2019-02-13 17:19 ` Jarkko Sakkinen @ 2019-02-13 17:22 ` Tadeusz Struk 2019-02-13 18:07 ` Jarkko Sakkinen 0 siblings, 1 reply; 5+ messages in thread From: Tadeusz Struk @ 2019-02-13 17:22 UTC (permalink / raw) To: Jarkko Sakkinen Cc: linux-kselftest, shuah, linux-kernel, linux-integrity, linux-security-module, PeterHuewe, jgg On 2/13/19 9:19 AM, Jarkko Sakkinen wrote: > OK, great, thank you. > > They are in my master branch now. Thanks Jarkko. Are you planning to push it also to 5.1? ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v3] selftests/tpm2: Extend tests to cover partial reads 2019-02-13 17:22 ` Tadeusz Struk @ 2019-02-13 18:07 ` Jarkko Sakkinen 0 siblings, 0 replies; 5+ messages in thread From: Jarkko Sakkinen @ 2019-02-13 18:07 UTC (permalink / raw) To: Tadeusz Struk Cc: linux-kselftest, shuah, linux-kernel, linux-integrity, linux-security-module, PeterHuewe, jgg On Wed, Feb 13, 2019 at 09:22:56AM -0800, Tadeusz Struk wrote: > On 2/13/19 9:19 AM, Jarkko Sakkinen wrote: > > OK, great, thank you. > > > > They are in my master branch now. > > Thanks Jarkko. Are you planning to push it also to 5.1? I did already my v5.1 pull request but might do another one if there are regressions. So it depends. /Jarkko ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2019-02-13 18:08 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2019-02-13 16:39 [PATCH v2] selftests/tpm2: Open tpm dev in unbuffered mode Tadeusz Struk 2019-02-13 16:40 ` [PATCH v3] selftests/tpm2: Extend tests to cover partial reads Tadeusz Struk 2019-02-13 17:19 ` Jarkko Sakkinen 2019-02-13 17:22 ` Tadeusz Struk 2019-02-13 18:07 ` Jarkko Sakkinen
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