smoketest: T5428: check for process running in designated VRF

Start IPv4/IPv6 DHCP clients on an interface bound to a given VRF. Verify that
the client process runs in the VRF context.

1 files changed, 50 insertions, 0 deletions

diff --git a/src/tests/test_utils_network.py b/src/tests/test_utils_network.py
new file mode 100644
index 000000000..5a6dc2586
--- /dev/null
+++ b/src/tests/test_utils_network.py
@@ -0,0 +1,50 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2020-2023 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
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import vyos.utils.network
+from unittest import TestCase
+
+class TestVyOSUtilsNetwork(TestCase):
+    def setUp(self):
+        pass
+
+    def test_is_addr_assigned(self):
+        self.assertTrue(vyos.utils.network.is_addr_assigned('127.0.0.1'))
+        self.assertTrue(vyos.utils.network.is_addr_assigned('::1'))
+        self.assertFalse(vyos.utils.network.is_addr_assigned('127.251.255.123'))
+
+    def test_is_ipv6_link_local(self):
+        self.assertFalse(vyos.utils.network.is_ipv6_link_local('169.254.0.1'))
+        self.assertTrue(vyos.utils.network.is_ipv6_link_local('fe80::'))
+        self.assertTrue(vyos.utils.network.is_ipv6_link_local('fe80::affe:1'))
+        self.assertTrue(vyos.utils.network.is_ipv6_link_local('fe80::affe:1%eth0'))
+        self.assertFalse(vyos.utils.network.is_ipv6_link_local('2001:db8::'))
+        self.assertFalse(vyos.utils.network.is_ipv6_link_local('2001:db8::%eth0'))
+        self.assertFalse(vyos.utils.network.is_ipv6_link_local('VyOS'))
+        self.assertFalse(vyos.utils.network.is_ipv6_link_local('::1'))
+        self.assertFalse(vyos.utils.network.is_ipv6_link_local('::1%lo'))
+
+    def test_is_ipv6_link_local(self):
+        self.assertTrue(vyos.utils.network.is_loopback_addr('127.0.0.1'))
+        self.assertTrue(vyos.utils.network.is_loopback_addr('127.0.1.1'))
+        self.assertTrue(vyos.utils.network.is_loopback_addr('127.1.1.1'))
+        self.assertTrue(vyos.utils.network.is_loopback_addr('::1'))
+
+        self.assertFalse(vyos.utils.network.is_loopback_addr('::2'))
+        self.assertFalse(vyos.utils.network.is_loopback_addr('192.0.2.1'))
+
+
+