swtpm/tests/test_clientfds.py
Stefan Berger 930c7ba16e tests: Allow seccomp override w/ SWTPM_TEST_SECCOMP_OPT env var
The Ubuntu (PPA) build system executes the build on an environment that
has problems with seccomp profiles. It does not allow us to run the test
suite with swtpm applying its seccomp profile since it fails with a
'bad system call' error. To work around this we introduce the env. variable
SWTPM_TEST_SECCOMP_OPT that we can set to "--seccomp action=none" to avoid
having swtpm apply it seccomp profile.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2020-01-15 15:49:51 -05:00

110 lines
2.8 KiB
Python
Executable File

#!/usr/bin/env python3
import os
import sys
import socket
import subprocess
import time
import struct
child = None
fd = -1
ctrlfd = -1
def wait_for_pidfile(pidfile, timeout):
while timeout != 0:
if os.path.exists(pidfile):
return True
time.sleep(1)
timeout -= 1
return False
def spawn_swtpm():
global child, fd, ctrlfd
_fd, fd = socket.socketpair(socket.AF_UNIX, socket.SOCK_DGRAM)
_ctrlfd, ctrlfd = socket.socketpair(socket.AF_UNIX, socket.SOCK_DGRAM)
swtpm_exe = os.getenv('SWTPM_EXE')
tpmpath = os.getenv('TPMDIR')
pidfile = os.getenv('PID_FILE')
if not swtpm_exe or not tpmpath or not pidfile:
print("Missing test environment \n swtpm_exe=%s,\n"
" tpmpath=%s\n pidfile=%s" %
(swtpm_exe, tpmpath, pidfile))
return False
cmd = swtpm_exe + " socket --fd=" + str(_fd.fileno())
cmd += " --ctrl type=unixio,clientfd=" + str(_ctrlfd.fileno())
cmd += " --pid file=" + pidfile + " --tpmstate dir=" + tpmpath
if os.getenv('SWTPM_TEST_SECCOMP_OPT'):
cmd += " " + os.getenv('SWTPM_TEST_SECCOMP_OPT')
print("Running child cmd: %s" % cmd)
try:
if sys.version_info[0] >= 3:
child = subprocess.Popen(cmd.split(),
pass_fds=[_fd.fileno(), _ctrlfd.fileno()])
else:
child = subprocess.Popen(cmd.split())
except OSError as err:
print("OS error: %d" % err.errno)
return False
print("Child PID: %d" % child.pid)
if not wait_for_pidfile(pidfile, 3):
print("waitpid timeout")
child.kill()
child = None
return False
return True
def test_get_caps():
global ctrlfd
# test get capabilities
# CMD_GET_CAPABILITY = 0x00 00 00 01
cmd_get_caps = bytearray([0x00, 0x00, 0x00, 0x01])
expected_caps = bytearray([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xff])
def toString(arr):
return ' '.join('{:02x}'.format(x) for x in arr)
try:
ctrlfd.sendall(cmd_get_caps)
except SocketError as e:
print("SocketError")
buf = ctrlfd.recv(8)
if buf:
caps = bytearray(buf)
if caps == expected_caps:
return True
else:
print("Unexpected reply for CMD_GET_CAPABILITY: \n"
" actual: %s\n expected: %s"
% (toString(caps), toString(expected_caps)))
return False
else:
print("Null reply from swtpm")
return False
if __name__ == "__main__":
try:
if not spawn_swtpm() or not test_get_caps():
res = 1
else:
res = 0
except:
print("__Exception: ", sys.exc_info())
res = -1
if child:
child.terminate()
sys.exit(res)