@@ -232,11 +232,12 @@ def SSHCall(command, logger, timeout=None, **opts):
output_raw = b''
starttime = time.time()
process = subprocess.Popen(command, **options)
+ has_timeout = False
if timeout:
endtime = starttime + timeout
eof = False
os.set_blocking(process.stdout.fileno(), False)
- while time.time() < endtime and not eof:
+ while not has_timeout and not eof:
try:
logger.debug('Waiting for process output: time: %s, endtime: %s' % (time.time(), endtime))
if select.select([process.stdout], [], [], 5)[0] != []:
@@ -257,6 +258,10 @@ def SSHCall(command, logger, timeout=None, **opts):
logger.debug('BlockingIOError')
continue
+ if time.time() >= endtime:
+ logger.debug('SSHCall has timeout! Time: %s, endtime: %s' % (time.time(), endtime))
+ has_timeout = True
+
process.stdout.close()
# process hasn't returned yet
@@ -293,6 +298,16 @@ def SSHCall(command, logger, timeout=None, **opts):
pass
process.wait()
+ if has_timeout:
+ # Version of openssh before 8.6_p1 returns error code 0 when killed
+ # by a signal, when the timeout occurs we will receive a 0 error
+ # code because the process is been terminated and it's wrong because
+ # that value means success, but the process timed out.
+ # Afterwards, from version 8.6_p1 onwards, the returned code is 255.
+ # Fix this behaviour by checking the return code
+ if process.returncode == 0:
+ process.returncode = 255
+
options = {
"stdout": subprocess.PIPE,
"stderr": subprocess.STDOUT,
@@ -13,6 +13,9 @@ class SSHTest(OERuntimeTestCase):
@OETestDepends(['ping.PingTest.test_ping'])
@OEHasPackage(['dropbear', 'openssh-sshd'])
def test_ssh(self):
+ (status, output) = self.target.run('sleep 20', timeout=2)
+ msg='run() timed out but return code was zero.'
+ self.assertNotEqual(status, 0, msg=msg)
(status, output) = self.target.run('uname -a')
self.assertEqual(status, 0, msg='SSH Test failed: %s' % output)
(status, output) = self.target.run('cat /etc/controllerimage')