tests: Add topotest for SRv6 static SIDs

Signed-off-by: Yuqing Zhao <galadriel.zyq@alibaba-inc.com>

5 files changed, 219 insertions, 0 deletions

diff --git a/tests/topotests/static_srv6_sids/__init__.py b/tests/topotests/static_srv6_sids/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/tests/topotests/static_srv6_sids/__init__.py
diff --git a/tests/topotests/static_srv6_sids/expected_srv6_sids.json b/tests/topotests/static_srv6_sids/expected_srv6_sids.json
new file mode 100644
index 0000000000..e1a2a16afe
--- /dev/null
+++ b/tests/topotests/static_srv6_sids/expected_srv6_sids.json
@@ -0,0 +1,107 @@
+{
+	"fcbb:bbbb:1:fe10::/64": [
+		{
+			"prefix": "fcbb:bbbb:1:fe10::/64",
+			"prefixLen": 64,
+			"protocol": "static",
+			"vrfId": 0,
+			"vrfName": "default",
+			"selected": true,
+			"destSelected": true,
+			"distance": 1,
+			"metric": 0,
+			"installed": true,
+			"table": 254,
+			"internalStatus": 16,
+			"internalFlags": 9,
+			"internalNextHopNum": 1,
+			"internalNextHopActiveNum": 1,
+			"nexthops": [
+				{
+					"flags": 3,
+					"fib": true,
+					"directlyConnected": true,
+					"interfaceName": "Vrf10",
+					"active": true,
+					"weight": 1,
+					"seg6local": {
+						"action": "End.DT4"
+					},
+					"seg6localContext": {
+						"table": 10
+					}
+				}
+			]
+		}
+	],
+	"fcbb:bbbb:1:fe20::/64": [
+		{
+			"prefix": "fcbb:bbbb:1:fe20::/64",
+			"prefixLen": 64,
+			"protocol": "static",
+			"vrfId": 0,
+			"vrfName": "default",
+			"selected": true,
+			"destSelected": true,
+			"distance": 1,
+			"metric": 0,
+			"installed": true,
+			"table": 254,
+			"internalStatus": 16,
+			"internalFlags": 9,
+			"internalNextHopNum": 1,
+			"internalNextHopActiveNum": 1,
+			"nexthops": [
+				{
+					"flags": 3,
+					"fib": true,
+					"directlyConnected": true,
+					"interfaceName": "Vrf20",
+					"active": true,
+					"weight": 1,
+					"seg6local": {
+						"action": "End.DT6"
+					},
+					"seg6localContext": {
+						"table": 20
+					}
+				}
+			]
+		}
+	],
+	"fcbb:bbbb:1:fe30::/64": [
+		{
+			"prefix": "fcbb:bbbb:1:fe30::/64",
+			"prefixLen": 64,
+			"protocol": "static",
+			"vrfId": 0,
+			"vrfName": "default",
+			"selected": true,
+			"destSelected": true,
+			"distance": 1,
+			"metric": 0,
+			"installed": true,
+			"table": 254,
+			"internalStatus": 16,
+			"internalFlags": 9,
+			"internalNextHopNum": 1,
+			"internalNextHopActiveNum": 1,
+			"nexthops": [
+				{
+					"flags": 3,
+					"fib": true,
+					"directlyConnected": true,
+					"interfaceName": "Vrf30",
+					"active": true,
+					"weight": 1,
+					"seg6local": {
+						"action": "End.DT46"
+					},
+					"seg6localContext": {
+						"table": 30
+					}
+				}
+			]
+		}
+	]
+}
\ No newline at end of file
diff --git a/tests/topotests/static_srv6_sids/r1/frr.conf b/tests/topotests/static_srv6_sids/r1/frr.conf
new file mode 100644
index 0000000000..999e35c35b
--- /dev/null
+++ b/tests/topotests/static_srv6_sids/r1/frr.conf
@@ -0,0 +1,16 @@
+hostname r1
+!
+segment-routing
+ srv6
+  locators
+   locator MAIN
+    prefix fcbb:bbbb:1::/48 block-len 32 node-len 16 func-bits 16
+   !
+  !
+  static-sids
+   sid fcbb:bbbb:1:fe10::/64 locator MAIN behavior uDT4 vrf Vrf10
+   sid fcbb:bbbb:1:fe20::/64 locator MAIN behavior uDT6 vrf Vrf20
+   sid fcbb:bbbb:1:fe30::/64 locator MAIN behavior uDT46 vrf Vrf30
+  !
+ !
+!
\ No newline at end of file
diff --git a/tests/topotests/static_srv6_sids/r1/setup.sh b/tests/topotests/static_srv6_sids/r1/setup.sh
new file mode 100644
index 0000000000..040be73914
--- /dev/null
+++ b/tests/topotests/static_srv6_sids/r1/setup.sh
@@ -0,0 +1,13 @@
+ip link add sr0 type dummy
+ip link set sr0 up
+
+ip link add Vrf10 type vrf table 10
+ip link set Vrf10 up
+
+ip link add Vrf20 type vrf table 20
+ip link set Vrf20 up
+
+ip link add Vrf30 type vrf table 30
+ip link set Vrf30 up
+
+sysctl -w net.vrf.strict_mode=1
diff --git a/tests/topotests/static_srv6_sids/test_static_srv6_sids.py b/tests/topotests/static_srv6_sids/test_static_srv6_sids.py
new file mode 100755
index 0000000000..453a30af48
--- /dev/null
+++ b/tests/topotests/static_srv6_sids/test_static_srv6_sids.py
@@ -0,0 +1,83 @@
+#!/usr/bin/env python
+# SPDX-License-Identifier: ISC
+
+#
+# test_static_srv6_sids.py
+#
+# Copyright (c) 2025 by
+# Alibaba Inc, Yuqing Zhao <galadriel.zyq@alibaba-inc.com>
+#              Lingyu Zhang <hanyu.zly@alibaba-inc.com>
+#
+
+"""
+test_static_srv6_sids.py:
+Test for SRv6 static route on zebra
+"""
+
+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.topolog import logger
+
+pytestmark = [pytest.mark.staticd]
+
+
+def open_json_file(filename):
+    try:
+        with open(filename, "r") as f:
+            return json.load(f)
+    except IOError:
+        assert False, "Could not read file {}".format(filename)
+
+
+def setup_module(mod):
+    tgen = Topogen({None: "r1"}, mod.__name__)
+    tgen.start_topology()
+    for rname, router in tgen.routers().items():
+        router.run("/bin/bash {}/{}/setup.sh".format(CWD, rname))
+        router.load_frr_config("frr.conf")
+    tgen.start_router()
+
+
+def teardown_module():
+    tgen = get_topogen()
+    tgen.stop_topology()
+
+
+def test_srv6_static_sids():
+    tgen = get_topogen()
+    if tgen.routers_have_failure():
+        pytest.skip(tgen.errors)
+    router = tgen.gears["r1"]
+
+    def _check_srv6_static_sids(router, expected_route_file):
+        logger.info("checking zebra srv6 static sids")
+        output = json.loads(router.vtysh_cmd("show ipv6 route static json"))
+        expected = open_json_file("{}/{}".format(CWD, expected_route_file))
+        return topotest.json_cmp(output, expected)
+
+    def check_srv6_static_sids(router, expected_file):
+        func = functools.partial(_check_srv6_static_sids, router, expected_file)
+        _, result = topotest.run_and_expect(func, None, count=15, wait=1)
+        assert result is None, "Failed"
+
+    # FOR DEVELOPER:
+    # If you want to stop some specific line and start interactive shell,
+    # please use tgen.mininet_cli() to start it.
+
+    logger.info("Test for srv6 sids configuration")
+    check_srv6_static_sids(router, "expected_srv6_sids.json")
+
+
+if __name__ == "__main__":
+    args = ["-s"] + sys.argv[1:]
+    sys.exit(pytest.main(args))