@@ -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 += netns_atomic.py
TEST_PROGS += nl_netdev.py
TEST_PROGS += srv6_end_dt46_l3vpn_test.sh
TEST_PROGS += srv6_end_dt4_l3vpn_test.sh
@@ -78,6 +78,16 @@ ip -netns $NS link show dev $ALT_NAME 2> /dev/null &&
fail "Can still find alt-name after move"
ip -netns $test_ns link del $DEV || fail
+#
+# Test no conflict of the same name/ifindex in different netns
+#
+ip -netns $NS link add name $DEV index 100 type dummy || fail
+ip -netns $NS link add netns $test_ns name $DEV index 100 type dummy ||
+ fail "Can create in netns without moving"
+ip -netns $test_ns link show dev $DEV >> /dev/null || fail "Device not found"
+ip -netns $NS link del $DEV || fail
+ip -netns $test_ns link del $DEV || fail
+
echo -ne "$(basename $0) \t\t\t\t"
if [ $RET_CODE -eq 0 ]; then
echo "[ OK ]"
new file mode 100755
@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import time
+
+from lib.py import ksft_run, ksft_exit, ksft_true
+from lib.py import ip
+from lib.py import NetNS, NetNSEnter
+from lib.py import RtnlFamily
+
+
+def test_event(ns1, ns2) -> None:
+ with NetNSEnter(str(ns1)):
+ rtnl = RtnlFamily()
+
+ rtnl.ntf_subscribe("rtnlgrp-link")
+
+ ip(f"netns set {ns1} 0", ns=str(ns2))
+
+ ip(f"link add netns {ns2} link-netnsid 0 dummy1 type dummy")
+ ip(f"link add netns {ns2} dummy2 type dummy", ns=str(ns1))
+
+ ip("link del dummy1", ns=str(ns2))
+ ip("link del dummy2", ns=str(ns2))
+
+ time.sleep(1)
+ rtnl.check_ntf()
+ ksft_true(rtnl.async_msg_queue.empty(),
+ "Received unexpected link notification")
+
+
+def main() -> None:
+ with NetNS() as ns1, NetNS() as ns2:
+ ksft_run([test_event], args=(ns1, ns2))
+ ksft_exit()
+
+
+if __name__ == "__main__":
+ main()
- Add test for creating link in another netns when a link of the same name and ifindex exists in current netns. - Add test for link netns atomicity - create link directly in target netns, and no notifications should be generated in current netns. Signed-off-by: Xiao Liang <shaw.leon@gmail.com> --- tools/testing/selftests/net/Makefile | 1 + tools/testing/selftests/net/netns-name.sh | 10 ++++++ tools/testing/selftests/net/netns_atomic.py | 39 +++++++++++++++++++++ 3 files changed, 50 insertions(+) create mode 100755 tools/testing/selftests/net/netns_atomic.py