From: Hangbin Liu <liuhangbin@gmail.com>
Date: Tue, 25 Jan 2022 08:17:15 +0000 (+0800)
Subject: selftests/bpf/test_tcp_check_syncookie: use temp netns for testing
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ab6bcc20722775022c5ab0086824e9d2e3ceefcd;p=linux.git

selftests/bpf/test_tcp_check_syncookie: use temp netns for testing

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>
---

diff --git a/tools/testing/selftests/bpf/test_tcp_check_syncookie.sh b/tools/testing/selftests/bpf/test_tcp_check_syncookie.sh
index 6413c14725546..102e6588e2fed 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