From af2563589b79539fd771c167aee0ab531a8f0fba Mon Sep 17 00:00:00 2001
From: Christian Poessinger <christian@poessinger.com>
Date: Wed, 6 Apr 2022 09:40:19 +0200
Subject: smoketest: vrf: T4331: IPv6 link-local addresses not configured for
 interface in VRF

(cherry picked from commit 5b57c536b5f599deea2106aad7aea95c465bc0c0)
---
 smoketest/scripts/cli/test_vrf.py | 49 +++++++++++++++++++++++++++++++++++----
 1 file changed, 45 insertions(+), 4 deletions(-)

diff --git a/smoketest/scripts/cli/test_vrf.py b/smoketest/scripts/cli/test_vrf.py
index 0f006ca3c..5a44fdc66 100755
--- a/smoketest/scripts/cli/test_vrf.py
+++ b/smoketest/scripts/cli/test_vrf.py
@@ -29,6 +29,7 @@ from vyos.ifconfig import Section
 from vyos.template import is_ipv6
 from vyos.util import cmd
 from vyos.util import read_file
+from vyos.util import get_interface_config
 from vyos.validate import is_intf_addr_assigned
 
 base_path = ['vrf']
@@ -176,11 +177,11 @@ class VRFTest(VyOSUnitTestSHIM.TestCase):
         # commit changes
         self.cli_commit()
 
-        # Verify & cleanup
+        # Verify VRF assignmant
         for interface in self._interfaces:
-            # os.readlink resolves to: '../../../../../virtual/net/foovrf'
-            tmp = os.readlink(f'/sys/class/net/{interface}/master').split('/')[-1]
-            self.assertEqual(tmp, vrf)
+            tmp = get_interface_config(interface)
+            self.assertEqual(vrf, tmp['master'])
+
             # cleanup
             section = Section.section(interface)
             self.cli_delete(['interfaces', section, interface, 'vrf'])
@@ -256,5 +257,45 @@ class VRFTest(VyOSUnitTestSHIM.TestCase):
 
             table = str(int(table) + 1)
 
+    def test_vrf_link_local_ip_addresses(self):
+        # Testcase for issue T4331
+        table = '100'
+        vrf = 'orange'
+        interface = 'dum9998'
+        addresses = ['192.0.2.1/26', '2001:db8:9998::1/64', 'fe80::1/64']
+
+        for address in addresses:
+            self.cli_set(['interfaces', 'dummy', interface, 'address', address])
+
+        # Create dummy interfaces
+        self.cli_commit()
+
+        # ... and verify IP addresses got assigned
+        for address in addresses:
+            self.assertTrue(is_intf_addr_assigned(interface, address))
+
+        # Move interface to VRF
+        self.cli_set(base_path + ['name', vrf, 'table', table])
+        self.cli_set(['interfaces', 'dummy', interface, 'vrf', vrf])
+
+        # Apply VRF config
+        self.cli_commit()
+        # Ensure VRF got created
+        self.assertIn(vrf, interfaces())
+        # ... and IP addresses are still assigned
+        for address in addresses:
+            self.assertTrue(is_intf_addr_assigned(interface, address))
+        # Verify VRF table ID
+        tmp = get_interface_config(vrf)
+        self.assertEqual(int(table), tmp['linkinfo']['info_data']['table'])
+
+        # Verify interface is assigned to VRF
+        tmp = get_interface_config(interface)
+        self.assertEqual(vrf, tmp['master'])
+
+        # Delete Interface
+        self.cli_delete(['interfaces', 'dummy', interface])
+        self.cli_commit()
+
 if __name__ == '__main__':
     unittest.main(verbosity=2)
-- 
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