[PATCH net-next 4/7] selftests: nl_netdev: add a trivial Netlink netdev test

Jakub Kicinski
2024-04-02T01:05:42Z

Add a trivial test using YNL.

$ ./tools/testing/selftests/net/nl_netdev.py
KTAP version 1
1..2
ok 1 nl_netdev.empty_check
ok 2 nl_netdev.lo_check

Instantiate the family once, it takes longer than the test itself.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
CC: shuah@kernel.org
CC: linux-kselftest@vger.kernel.org
---
tools/testing/selftests/net/Makefile | 1 +
tools/testing/selftests/net/nl_netdev.py | 24 ++++++++++++++++++++++++
2 files changed, 25 insertions(+)
create mode 100755 tools/testing/selftests/net/nl_netdev.py

diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index cb418a2346bc..5e34c93aa51b 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -34,6 +34,7 @@ TEST_PROGS += gre_gso.sh
TEST_PROGS += cmsg_so_mark.sh
TEST_PROGS += cmsg_time.sh cmsg_ipv6.sh
TEST_PROGS += netns-name.sh
+TEST_PROGS += nl_netdev.py
TEST_PROGS += srv6_end_dt46_l3vpn_test.sh
TEST_PROGS += srv6_end_dt4_l3vpn_test.sh
TEST_PROGS += srv6_end_dt6_l3vpn_test.sh
diff --git a/tools/testing/selftests/net/nl_netdev.py b/tools/testing/selftests/net/nl_netdev.py
new file mode 100755
index 000000000000..40a59857f984
--- /dev/null
+++ b/tools/testing/selftests/net/nl_netdev.py
@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+from lib.py import ksft_run, ksft_pr, ksft_eq, ksft_ge, NetdevFamily
+
+
+nf = NetdevFamily()
+
+
+def empty_check() -> None:
+ global nf
+ devs = nf.dev_get({}, dump=True)
+ ksft_ge(len(devs), 1)
+
+
+def lo_check() -> None:
+ global nf
+ lo_info = nf.dev_get({"ifindex": 1})
+ ksft_eq(len(lo_info['xdp-features']), 0)
+ ksft_eq(len(lo_info['xdp-rx-metadata-features']), 0)
+
+
+if __name__ == "__main__":
+ ksft_run([empty_check, lo_check])
--
2.44.0