tests: Check if routes are withdrawn with unwanted attributes

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>

diff --git a/tests/topotests/bgp_path_attribute_treat_as_withdraw/__init__.py b/tests/topotests/bgp_path_attribute_treat_as_withdraw/__init__.py
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/tests/topotests/bgp_path_attribute_treat_as_withdraw/r1/bgpd.conf b/tests/topotests/bgp_path_attribute_treat_as_withdraw/r1/bgpd.conf
new file mode 100644 (file)
index 0000000..4286b98
--- /dev/null
+++ b/tests/topotests/bgp_path_attribute_treat_as_withdraw/r1/bgpd.conf
@@ -0,0 +1,14 @@
+!
+router bgp 65001
+ no bgp ebgp-requires-policy
+ no bgp network import-check
+ neighbor 10.0.0.2 remote-as external
+ neighbor 10.0.0.2 timers 3 10
+ address-family ipv4 unicast
+  network 10.10.10.10/32 route-map atomic
+  network 10.10.10.20/32
+ exit-address-family
+!
+route-map atomic permit 10
+ set atomic-aggregate
+!

diff --git a/tests/topotests/bgp_path_attribute_treat_as_withdraw/r1/zebra.conf b/tests/topotests/bgp_path_attribute_treat_as_withdraw/r1/zebra.conf
new file mode 100644 (file)
index 0000000..51a1b26
--- /dev/null
+++ b/tests/topotests/bgp_path_attribute_treat_as_withdraw/r1/zebra.conf
@@ -0,0 +1,4 @@
+!
+interface r1-eth0
+ ip address 10.0.0.1/24
+!

diff --git a/tests/topotests/bgp_path_attribute_treat_as_withdraw/r2/bgpd.conf b/tests/topotests/bgp_path_attribute_treat_as_withdraw/r2/bgpd.conf
new file mode 100644 (file)
index 0000000..2e63fd8
--- /dev/null
+++ b/tests/topotests/bgp_path_attribute_treat_as_withdraw/r2/bgpd.conf
@@ -0,0 +1,6 @@
+!
+router bgp 65002
+ no bgp ebgp-requires-policy
+ neighbor 10.0.0.1 remote-as external
+ neighbor 10.0.0.1 timers 3 10
+!

diff --git a/tests/topotests/bgp_path_attribute_treat_as_withdraw/r2/zebra.conf b/tests/topotests/bgp_path_attribute_treat_as_withdraw/r2/zebra.conf
new file mode 100644 (file)
index 0000000..12d3731
--- /dev/null
+++ b/tests/topotests/bgp_path_attribute_treat_as_withdraw/r2/zebra.conf
@@ -0,0 +1,4 @@
+!
+interface r2-eth0
+ ip address 10.0.0.2/24
+!

diff --git a/tests/topotests/bgp_path_attribute_treat_as_withdraw/test_bgp_path_attribute_treat_as_withdraw.py b/tests/topotests/bgp_path_attribute_treat_as_withdraw/test_bgp_path_attribute_treat_as_withdraw.py
new file mode 100644 (file)
index 0000000..4aa2975
--- /dev/null
+++ b/tests/topotests/bgp_path_attribute_treat_as_withdraw/test_bgp_path_attribute_treat_as_withdraw.py
@@ -0,0 +1,143 @@
+#!/usr/bin/env python
+
+#
+# Copyright (c) 2022 by
+# Donatas Abraitis <donatas@opensourcerouting.org>
+#
+# Permission to use, copy, modify, and/or distribute this software
+# for any purpose with or without fee is hereby granted, provided
+# that the above copyright notice and this permission notice appear
+# in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
+# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+# OF THIS SOFTWARE.
+#
+
+"""
+Test if `neighbor path-attribute treat-as-withdraw` command works correctly,
+can withdraw unwanted prefixes from BGP table.
+"""
+
+import os
+import sys
+import json
+import pytest
+import functools
+
+CWD = os.path.dirname(os.path.realpath(__file__))
+sys.path.append(os.path.join(CWD, "../"))
+
+# pylint: disable=C0413
+from lib import topotest
+from lib.topogen import Topogen, TopoRouter, get_topogen
+from lib.common_config import step
+
+pytestmark = [pytest.mark.bgpd]
+
+
+def build_topo(tgen):
+    r1 = tgen.add_router("r1")
+    r2 = tgen.add_router("r2")
+
+    switch = tgen.add_switch("s1")
+    switch.add_link(r1)
+    switch.add_link(r2)
+
+
+def setup_module(mod):
+    tgen = Topogen(build_topo, mod.__name__)
+    tgen.start_topology()
+
+    r1 = tgen.gears["r1"]
+    r1.load_config(TopoRouter.RD_ZEBRA, os.path.join(CWD, "r1/zebra.conf"))
+    r1.load_config(TopoRouter.RD_BGP, os.path.join(CWD, "r1/bgpd.conf"))
+    r1.start()
+
+    r2 = tgen.gears["r2"]
+    r2.load_config(TopoRouter.RD_ZEBRA, os.path.join(CWD, "r2/zebra.conf"))
+    r2.load_config(TopoRouter.RD_BGP, os.path.join(CWD, "r2/bgpd.conf"))
+    r2.start()
+
+
+def teardown_module(mod):
+    tgen = get_topogen()
+    tgen.stop_topology()
+
+
+def test_bgp_path_attribute_treat_as_withdraw():
+    tgen = get_topogen()
+
+    if tgen.routers_have_failure():
+        pytest.skip(tgen.errors)
+
+    r2 = tgen.gears["r2"]
+
+    def _bgp_converge():
+        output = json.loads(r2.vtysh_cmd("show bgp ipv4 unicast json detail"))
+        expected = {
+            "routes": {
+                "10.10.10.10/32": [
+                    {
+                        "valid": True,
+                        "atomicAggregate": True,
+                    }
+                ],
+                "10.10.10.20/32": [
+                    {
+                        "valid": True,
+                    }
+                ],
+            }
+        }
+        return topotest.json_cmp(output, expected)
+
+    test_func = functools.partial(_bgp_converge)
+    _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
+    assert result is None, "Failed bgp convergence"
+
+    step("Withdraw prefixes with atomic-aggregate from r1")
+    r2.vtysh_cmd(
+        """
+    configure terminal
+        router bgp
+            neighbor 10.0.0.1 path-attribute treat-as-withdraw 6
+    """
+    )
+
+    def _bgp_check_if_route_withdrawn():
+        output = json.loads(r2.vtysh_cmd("show bgp ipv4 unicast json detail"))
+        expected = {
+            "routes": {
+                "10.10.10.10/32": None,
+                "10.10.10.20/32": [
+                    {
+                        "valid": True,
+                    }
+                ],
+            }
+        }
+        return topotest.json_cmp(output, expected)
+
+    test_func = functools.partial(_bgp_check_if_route_withdrawn)
+    _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
+    assert result is None, "Failed to withdraw prefixes with atomic-aggregate attribute"
+
+
+def test_memory_leak():
+    "Run the memory leak test and report results."
+    tgen = get_topogen()
+    if not tgen.is_memleak_enabled():
+        pytest.skip("Memory leak test/report is disabled")
+
+    tgen.report_memory_leaks()
+
+
+if __name__ == "__main__":
+    args = ["-s"] + sys.argv[1:]
+    sys.exit(pytest.main(args))