X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_nat44_ei.py;h=955dbb52547e24e8b8aff17bbe50b743d659c3d0;hb=816b5d613c3a977811af0494e2d215aac6684515;hp=9eb127aaf0b6674fc2c441c8fa70f85bd31637ed;hpb=d9b0c6fbf7aa5bd9af84264105b39c82028a4a29;p=vpp.git

diff --git a/test/test_nat44_ei.py b/test/test_nat44_ei.py
index 9eb127aaf0b..955dbb52547 100644
--- a/test/test_nat44_ei.py
+++ b/test/test_nat44_ei.py
@@ -8,7 +8,8 @@ import unittest
 from io import BytesIO
 
 import scapy.compat
-from framework import VppTestCase, VppTestRunner
+from framework import tag_fixme_debian11, is_distro_debian11
+from framework import VppTestCase, VppTestRunner, VppLoInterface
 from ipfix import IPFIX, Set, Template, Data, IPFIXDecoder
 from scapy.all import (
     bind_layers,
@@ -910,6 +911,7 @@ def get_nat44_ei_in2out_worker_index(ip, vpp_worker_count):
     return 1 + h % vpp_worker_count
 
 
+@tag_fixme_debian11
 class TestNAT44EI(MethodHolder):
     """NAT44EI Test Cases"""
 
@@ -919,6 +921,8 @@ class TestNAT44EI(MethodHolder):
     @classmethod
     def setUpClass(cls):
         super(TestNAT44EI, cls).setUpClass()
+        if is_distro_debian11 == True and not hasattr(cls, "vpp"):
+            return
         cls.vapi.cli("set log class nat44-ei level debug")
 
         cls.tcp_port_in = 6303
@@ -4057,6 +4061,59 @@ class TestNAT44EI(MethodHolder):
         # a nonzero default should be reported for user_sessions
         self.assertNotEqual(nat44_ei_config.user_sessions, 0)
 
+    def test_delete_interface(self):
+        """NAT44EI delete nat interface"""
+
+        self.nat44_add_address(self.nat_addr)
+
+        interfaces = self.create_loopback_interfaces(4)
+
+        self.vapi.nat44_ei_interface_add_del_feature(
+            sw_if_index=interfaces[0].sw_if_index, is_add=1
+        )
+        flags = self.config_flags.NAT44_EI_IF_INSIDE
+        self.vapi.nat44_ei_interface_add_del_feature(
+            sw_if_index=interfaces[1].sw_if_index, flags=flags, is_add=1
+        )
+        flags |= self.config_flags.NAT44_EI_IF_OUTSIDE
+        self.vapi.nat44_ei_interface_add_del_feature(
+            sw_if_index=interfaces[2].sw_if_index, flags=flags, is_add=1
+        )
+        self.vapi.nat44_ei_add_del_output_interface(
+            sw_if_index=interfaces[3].sw_if_index, is_add=1
+        )
+
+        nat_sw_if_indices = [
+            i.sw_if_index
+            for i in self.vapi.nat44_ei_interface_dump()
+            + list(self.vapi.vpp.details_iter(self.vapi.nat44_ei_output_interface_get))
+        ]
+        self.assertEqual(len(nat_sw_if_indices), len(interfaces))
+
+        loopbacks = []
+        for i in interfaces:
+            # delete nat-enabled interface
+            self.assertIn(i.sw_if_index, nat_sw_if_indices)
+            i.remove_vpp_config()
+
+            # create interface with the same index
+            lo = VppLoInterface(self)
+            loopbacks.append(lo)
+            self.assertEqual(lo.sw_if_index, i.sw_if_index)
+
+            # check interface is not nat-enabled
+            nat_sw_if_indices = [
+                i.sw_if_index
+                for i in self.vapi.nat44_ei_interface_dump()
+                + list(
+                    self.vapi.vpp.details_iter(self.vapi.nat44_ei_output_interface_get)
+                )
+            ]
+            self.assertNotIn(lo.sw_if_index, nat_sw_if_indices)
+
+        for i in loopbacks:
+            i.remove_vpp_config()
+
 
 class TestNAT44Out2InDPO(MethodHolder):
     """NAT44EI Test Cases using out2in DPO"""