redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

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>
hifive-unleashed-5.1
Tadeusz Struk 2019-02-12 15:42:10 -08:00 committed by James Morris
parent be24b37e22
commit f1a0ba6ccc
2 changed files with 64 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
tools/testing/selftests/tpm2/tpm2.py
View File

@ -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

63
tools/testing/selftests/tpm2/tpm2_tests.py
View File

@ -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)