227 lines
7.1 KiB
Python
227 lines
7.1 KiB
Python
#!/usr/bin/env python3
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
|
|
from struct import pack
|
|
from time import sleep
|
|
|
|
import errno
|
|
import glob
|
|
import os
|
|
import subprocess
|
|
|
|
try:
|
|
import pytest
|
|
except ImportError:
|
|
print("Unable to import pytest python module.")
|
|
print("\nIf not already installed, you may do so with:")
|
|
print("\t\tpip3 install pytest")
|
|
exit(1)
|
|
|
|
SOCKETS = glob.glob('/sys/bus/auxiliary/devices/intel_vsec.sdsi.*')
|
|
NUM_SOCKETS = len(SOCKETS)
|
|
|
|
MODULE_NAME = 'intel_sdsi'
|
|
DEV_PREFIX = 'intel_vsec.sdsi'
|
|
CLASS_DIR = '/sys/bus/auxiliary/devices'
|
|
GUID = "0x6dd191"
|
|
|
|
def read_bin_file(file):
|
|
with open(file, mode='rb') as f:
|
|
content = f.read()
|
|
return content
|
|
|
|
def get_dev_file_path(socket, file):
|
|
return CLASS_DIR + '/' + DEV_PREFIX + '.' + str(socket) + '/' + file
|
|
|
|
def kmemleak_enabled():
|
|
kmemleak = "/sys/kernel/debug/kmemleak"
|
|
return os.path.isfile(kmemleak)
|
|
|
|
class TestSDSiDriver:
|
|
def test_driver_loaded(self):
|
|
lsmod_p = subprocess.Popen(('lsmod'), stdout=subprocess.PIPE)
|
|
result = subprocess.check_output(('grep', '-q', MODULE_NAME), stdin=lsmod_p.stdout)
|
|
|
|
@pytest.mark.parametrize('socket', range(0, NUM_SOCKETS))
|
|
class TestSDSiFilesClass:
|
|
|
|
def read_value(self, file):
|
|
f = open(file, "r")
|
|
value = f.read().strip("\n")
|
|
return value
|
|
|
|
def get_dev_folder(self, socket):
|
|
return CLASS_DIR + '/' + DEV_PREFIX + '.' + str(socket) + '/'
|
|
|
|
def test_sysfs_files_exist(self, socket):
|
|
folder = self.get_dev_folder(socket)
|
|
print (folder)
|
|
assert os.path.isfile(folder + "guid") == True
|
|
assert os.path.isfile(folder + "provision_akc") == True
|
|
assert os.path.isfile(folder + "provision_cap") == True
|
|
assert os.path.isfile(folder + "state_certificate") == True
|
|
assert os.path.isfile(folder + "registers") == True
|
|
|
|
def test_sysfs_file_permissions(self, socket):
|
|
folder = self.get_dev_folder(socket)
|
|
mode = os.stat(folder + "guid").st_mode & 0o777
|
|
assert mode == 0o444 # Read all
|
|
mode = os.stat(folder + "registers").st_mode & 0o777
|
|
assert mode == 0o400 # Read owner
|
|
mode = os.stat(folder + "provision_akc").st_mode & 0o777
|
|
assert mode == 0o200 # Read owner
|
|
mode = os.stat(folder + "provision_cap").st_mode & 0o777
|
|
assert mode == 0o200 # Read owner
|
|
mode = os.stat(folder + "state_certificate").st_mode & 0o777
|
|
assert mode == 0o400 # Read owner
|
|
|
|
def test_sysfs_file_ownership(self, socket):
|
|
folder = self.get_dev_folder(socket)
|
|
|
|
st = os.stat(folder + "guid")
|
|
assert st.st_uid == 0
|
|
assert st.st_gid == 0
|
|
|
|
st = os.stat(folder + "registers")
|
|
assert st.st_uid == 0
|
|
assert st.st_gid == 0
|
|
|
|
st = os.stat(folder + "provision_akc")
|
|
assert st.st_uid == 0
|
|
assert st.st_gid == 0
|
|
|
|
st = os.stat(folder + "provision_cap")
|
|
assert st.st_uid == 0
|
|
assert st.st_gid == 0
|
|
|
|
st = os.stat(folder + "state_certificate")
|
|
assert st.st_uid == 0
|
|
assert st.st_gid == 0
|
|
|
|
def test_sysfs_file_sizes(self, socket):
|
|
folder = self.get_dev_folder(socket)
|
|
|
|
if self.read_value(folder + "guid") == GUID:
|
|
st = os.stat(folder + "registers")
|
|
assert st.st_size == 72
|
|
|
|
st = os.stat(folder + "provision_akc")
|
|
assert st.st_size == 1024
|
|
|
|
st = os.stat(folder + "provision_cap")
|
|
assert st.st_size == 1024
|
|
|
|
st = os.stat(folder + "state_certificate")
|
|
assert st.st_size == 4096
|
|
|
|
def test_no_seek_allowed(self, socket):
|
|
folder = self.get_dev_folder(socket)
|
|
rand_file = bytes(os.urandom(8))
|
|
|
|
f = open(folder + "provision_cap", "wb", 0)
|
|
f.seek(1)
|
|
with pytest.raises(OSError) as error:
|
|
f.write(rand_file)
|
|
assert error.value.errno == errno.ESPIPE
|
|
f.close()
|
|
|
|
f = open(folder + "provision_akc", "wb", 0)
|
|
f.seek(1)
|
|
with pytest.raises(OSError) as error:
|
|
f.write(rand_file)
|
|
assert error.value.errno == errno.ESPIPE
|
|
f.close()
|
|
|
|
def test_registers_seek(self, socket):
|
|
folder = self.get_dev_folder(socket)
|
|
|
|
# Check that the value read from an offset of the entire
|
|
# file is none-zero and the same as the value read
|
|
# from seeking to the same location
|
|
f = open(folder + "registers", "rb")
|
|
data = f.read()
|
|
f.seek(64)
|
|
id = f.read()
|
|
assert id != bytes(0)
|
|
assert data[64:] == id
|
|
f.close()
|
|
|
|
@pytest.mark.parametrize('socket', range(0, NUM_SOCKETS))
|
|
class TestSDSiMailboxCmdsClass:
|
|
def test_provision_akc_eoverflow_1017_bytes(self, socket):
|
|
|
|
# The buffer for writes is 1k, of with 8 bytes must be
|
|
# reserved for the command, leaving 1016 bytes max.
|
|
# Check that we get an overflow error for 1017 bytes.
|
|
node = get_dev_file_path(socket, "provision_akc")
|
|
rand_file = bytes(os.urandom(1017))
|
|
|
|
f = open(node, 'wb', 0)
|
|
with pytest.raises(OSError) as error:
|
|
f.write(rand_file)
|
|
assert error.value.errno == errno.EOVERFLOW
|
|
f.close()
|
|
|
|
@pytest.mark.parametrize('socket', range(0, NUM_SOCKETS))
|
|
class TestSdsiDriverLocksClass:
|
|
def test_enodev_when_pci_device_removed(self, socket):
|
|
node = get_dev_file_path(socket, "provision_akc")
|
|
dev_name = DEV_PREFIX + '.' + str(socket)
|
|
driver_dir = CLASS_DIR + '/' + dev_name + "/driver/"
|
|
rand_file = bytes(os.urandom(8))
|
|
|
|
f = open(node, 'wb', 0)
|
|
g = open(node, 'wb', 0)
|
|
|
|
with open(driver_dir + 'unbind', 'w') as k:
|
|
print(dev_name, file = k)
|
|
|
|
with pytest.raises(OSError) as error:
|
|
f.write(rand_file)
|
|
assert error.value.errno == errno.ENODEV
|
|
|
|
with pytest.raises(OSError) as error:
|
|
g.write(rand_file)
|
|
assert error.value.errno == errno.ENODEV
|
|
|
|
f.close()
|
|
g.close()
|
|
|
|
# Short wait needed to allow file to close before pulling driver
|
|
sleep(1)
|
|
|
|
p = subprocess.Popen(('modprobe', '-r', 'intel_sdsi'))
|
|
p.wait()
|
|
p = subprocess.Popen(('modprobe', '-r', 'intel_vsec'))
|
|
p.wait()
|
|
p = subprocess.Popen(('modprobe', 'intel_vsec'))
|
|
p.wait()
|
|
|
|
# Short wait needed to allow driver time to get inserted
|
|
# before continuing tests
|
|
sleep(1)
|
|
|
|
def test_memory_leak(self, socket):
|
|
if not kmemleak_enabled():
|
|
pytest.skip("kmemleak not enabled in kernel")
|
|
|
|
dev_name = DEV_PREFIX + '.' + str(socket)
|
|
driver_dir = CLASS_DIR + '/' + dev_name + "/driver/"
|
|
|
|
with open(driver_dir + 'unbind', 'w') as k:
|
|
print(dev_name, file = k)
|
|
|
|
sleep(1)
|
|
|
|
subprocess.check_output(('modprobe', '-r', 'intel_sdsi'))
|
|
subprocess.check_output(('modprobe', '-r', 'intel_vsec'))
|
|
|
|
with open('/sys/kernel/debug/kmemleak', 'w') as f:
|
|
print('scan', file = f)
|
|
sleep(5)
|
|
|
|
assert os.stat('/sys/kernel/debug/kmemleak').st_size == 0
|
|
|
|
subprocess.check_output(('modprobe', 'intel_vsec'))
|
|
sleep(1)
|