[PATCH bpf 5/7] selftests/bpf/test_tcp_check_syncookie: use temp netns for testing

Hangbin Liu
2022-01-25T09:07:08Z

Use temp netns instead of hard code name for testing in case the
netns already exists.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
---
tools/testing/selftests/bpf/test_tcp_check_syncookie.sh | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/test_tcp_check_syncookie.sh b/tools/testing/selftests/bpf/test_tcp_check_syncookie.sh
index 6413c1472554..102e6588e2fe 100755
--- a/tools/testing/selftests/bpf/test_tcp_check_syncookie.sh
+++ b/tools/testing/selftests/bpf/test_tcp_check_syncookie.sh
@@ -4,6 +4,7 @@
# Copyright (c) 2019 Cloudflare

set -eu
+readonly NS1="ns1-$(mktemp -u XXXXXX)"

wait_for_ip()
{
@@ -28,12 +29,12 @@ get_prog_id()

ns1_exec()
{
- ip netns exec ns1 "$@"
+ ip netns exec ${NS1} "$@"
}

setup()
{
- ip netns add ns1
+ ip netns add ${NS1}
ns1_exec ip link set lo up

ns1_exec sysctl -w net.ipv4.tcp_syncookies=2
--
2.31.1