From: Hangbin Liu <liuhangbin@gmail.com>
Date: Tue, 25 Jan 2022 16:17:15 +0800
Subject: selftests/bpf/test_tcp_check_syncookie: use temp netns for testing
Patch-mainline: v5.18-rc1
Git-commit: ab6bcc20722775022c5ab0086824e9d2e3ceefcd
References: jsc#PED-1377
Use temp netns instead of hard code name for testing in case the
netns already exists.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Lorenz Bauer <lmb@cloudflare.com>
Link: https://lore.kernel.org/r/20220125081717.1260849-6-liuhangbin@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
---
tools/testing/selftests/bpf/test_tcp_check_syncookie.sh | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- 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