diff options
Diffstat (limited to 'smoketest/scripts/cli/test_service_ssh.py')
| -rwxr-xr-x | smoketest/scripts/cli/test_service_ssh.py | 72 |
1 files changed, 59 insertions, 13 deletions
diff --git a/smoketest/scripts/cli/test_service_ssh.py b/smoketest/scripts/cli/test_service_ssh.py index a54c03919..9ed263655 100755 --- a/smoketest/scripts/cli/test_service_ssh.py +++ b/smoketest/scripts/cli/test_service_ssh.py @@ -1,6 +1,6 @@ #!/usr/bin/env python3 # -# Copyright (C) 2019-2020 VyOS maintainers and contributors +# Copyright (C) 2019-2022 VyOS maintainers and contributors # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 or later as @@ -15,13 +15,17 @@ # along with this program. If not, see <http://www.gnu.org/licenses/>. import os +import paramiko import re import unittest +from pwd import getpwall + from base_vyostest_shim import VyOSUnitTestSHIM from vyos.configsession import ConfigSessionError from vyos.util import cmd +from vyos.util import is_systemd_service_running from vyos.util import process_named_running from vyos.util import read_file @@ -49,6 +53,9 @@ class TestServiceSSH(VyOSUnitTestSHIM.TestCase): cls.cli_delete(cls, base_path) def tearDown(self): + # Check for running process + self.assertTrue(process_named_running(PROCESS_NAME)) + # delete testing SSH config self.cli_delete(base_path) self.cli_commit() @@ -57,6 +64,11 @@ class TestServiceSSH(VyOSUnitTestSHIM.TestCase): self.assertTrue(os.path.isfile(key_dsa)) self.assertTrue(os.path.isfile(key_ed25519)) + # Established SSH connections remains running after service is stopped. + # We can not use process_named_running here - we rather need to check + # that the systemd service is no longer running + self.assertFalse(is_systemd_service_running(PROCESS_NAME)) + def test_ssh_default(self): # Check if SSH service runs with default settings - used for checking # behavior of <defaultValue> in XML definition @@ -69,9 +81,6 @@ class TestServiceSSH(VyOSUnitTestSHIM.TestCase): port = get_config_value('Port')[0] self.assertEqual('22', port) - # Check for running process - self.assertTrue(process_named_running(PROCESS_NAME)) - def test_ssh_single_listen_address(self): # Check if SSH service can be configured and runs self.cli_set(base_path + ['port', '1234']) @@ -108,9 +117,6 @@ class TestServiceSSH(VyOSUnitTestSHIM.TestCase): keepalive = get_config_value('ClientAliveInterval')[0] self.assertTrue("100" in keepalive) - # Check for running process - self.assertTrue(process_named_running(PROCESS_NAME)) - def test_ssh_multiple_listen_addresses(self): # Check if SSH service can be configured and runs with multiple # listen ports and listen-addresses @@ -135,9 +141,6 @@ class TestServiceSSH(VyOSUnitTestSHIM.TestCase): for address in addresses: self.assertIn(address, tmp) - # Check for running process - self.assertTrue(process_named_running(PROCESS_NAME)) - def test_ssh_vrf(self): # Check if SSH service can be bound to given VRF port = '22' @@ -157,9 +160,6 @@ class TestServiceSSH(VyOSUnitTestSHIM.TestCase): tmp = get_config_value('Port') self.assertIn(port, tmp) - # Check for running process - self.assertTrue(process_named_running(PROCESS_NAME)) - # Check for process in VRF tmp = cmd(f'ip vrf pids {vrf}') self.assertIn(PROCESS_NAME, tmp) @@ -167,5 +167,51 @@ class TestServiceSSH(VyOSUnitTestSHIM.TestCase): # delete VRF self.cli_delete(['vrf', 'name', vrf]) + def test_ssh_login(self): + # Perform SSH login and command execution with a predefined user. The + # result (output of uname -a) must match the output if the command is + # run natively. + # + # We also try to login as an invalid user - this is not allowed to work. + + def ssh_send_cmd(command, username, password, host='localhost'): + """ SSH command execution helper """ + # Try to login via SSH + ssh_client = paramiko.SSHClient() + ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) + ssh_client.connect(hostname='localhost', username=username, password=password) + _, stdout, stderr = ssh_client.exec_command(command) + output = stdout.read().decode().strip() + error = stderr.read().decode().strip() + ssh_client.close() + return output, error + + test_user = 'ssh_test' + test_pass = 'v2i57DZs8idUwMN3VC92' + test_command = 'uname -a' + + self.cli_set(base_path) + self.cli_set(['system', 'login', 'user', test_user, 'authentication', 'plaintext-password', test_pass]) + + # commit changes + self.cli_commit() + + # Login with proper credentials + output, error = ssh_send_cmd(test_command, test_user, test_pass) + # verify login + self.assertFalse(error) + self.assertEqual(output, cmd(test_command)) + + # Login with invalid credentials + with self.assertRaises(paramiko.ssh_exception.AuthenticationException): + output, error = ssh_send_cmd(test_command, 'invalid_user', 'invalid_password') + + self.cli_delete(['system', 'login', 'user', test_user]) + self.cli_commit() + + # After deletion the test user is not allowed to remain in /etc/passwd + usernames = [x[0] for x in getpwall()] + self.assertNotIn(test_user, usernames) + if __name__ == '__main__': unittest.main(verbosity=2) |