Adding upstream version 8.4.4.upstream/8.4.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 120 insertions, 0 deletions

diff --git a/tests/topotests/zebra_netlink/test_zebra_netlink.py b/tests/topotests/zebra_netlink/test_zebra_netlink.py
new file mode 100644
index 0000000..ca90c5c
--- /dev/null
+++ b/tests/topotests/zebra_netlink/test_zebra_netlink.py
@@ -0,0 +1,120 @@
+#!/usr/bin/env python
+
+#
+# test_zebra_netlink.py
+#
+# Copyright (c) 2020 by
+#
+# 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_zebra_netlink.py: Test some basic interactions with kernel using Netlink
+
+"""
+# pylint: disable=C0413
+import ipaddress
+import json
+import sys
+from functools import partial
+
+import pytest
+from lib import topotest
+from lib.topogen import Topogen, TopoRouter
+from lib.topolog import logger
+
+
+pytestmark = [pytest.mark.sharpd]
+
+
+#####################################################
+##
+##   Tests starting
+##
+#####################################################
+
+
+@pytest.fixture(scope="module")
+def tgen(request):
+    "Sets up the pytest environment"
+
+    topodef = {"s1": ("r1")}
+    tgen = Topogen(topodef, request.module.__name__)
+    tgen.start_topology()
+
+    # Initialize all routers.
+    router_list = tgen.routers()
+    for rname, router in router_list.items():
+        router.load_config(TopoRouter.RD_ZEBRA, "zebra.conf")
+        router.load_config(TopoRouter.RD_SHARP)
+
+    tgen.start_router()
+    yield tgen
+    tgen.stop_topology()
+
+
+@pytest.fixture(autouse=True)
+def skip_on_failure(tgen):
+    if tgen.routers_have_failure():
+        pytest.skip("skipped because of previous test failure")
+
+
+def test_zebra_netlink_batching(tgen):
+    "Test the situation where dataplane fills netlink send buffer entirely."
+    logger.info(
+        "Test the situation where dataplane fills netlink send buffer entirely."
+    )
+    r1 = tgen.gears["r1"]
+
+    # Reduce the size of the buffer to hit the limit.
+    r1.vtysh_cmd("conf t\nzebra kernel netlink batch-tx-buf 256 256")
+
+    count = 100
+    r1.vtysh_cmd("sharp install routes 2.1.3.7 nexthop 192.168.1.1 " + str(count))
+
+    # Generate expected results
+    entry = {
+        "protocol": "sharp",
+        "distance": 150,
+        "metric": 0,
+        "installed": True,
+        "table": 254,
+        "nexthops": [
+            {
+                "fib": True,
+                "ip": "192.168.1.1",
+                "afi": "ipv4",
+                "interfaceName": "r1-eth0",
+                "active": True,
+                "weight": 1,
+            }
+        ],
+    }
+
+    match = {}
+    base = int(ipaddress.ip_address(u"2.1.3.7"))
+    for i in range(base, base + count):
+        pfx = str(ipaddress.ip_network((i, 32)))
+        match[pfx] = [dict(entry, prefix=pfx)]
+
+    ok = topotest.router_json_cmp_retry(r1, "show ip route json", match)
+    assert ok, '"r1" JSON output mismatches'
+
+    r1.vtysh_cmd("sharp remove routes 2.1.3.7 " + str(count))
+
+
+if __name__ == "__main__":
+    args = ["-s"] + sys.argv[1:]
+    sys.exit(pytest.main(args))