From: Vincent Li <vincent.mc.li@gmail.com>
Date: Mon, 19 Jul 2021 15:30:22 -0700
Subject: selftests, bpf: test_tc_tunnel.sh nc: Cannot use -p and -l
Patch-mainline: v5.15-rc1
Git-commit: 875fc315dbc3cdd3a5cab57b2bb7c1976ec8df44
References: jsc#PED-1377
When run test_tc_tunnel.sh, it complains following error
ipip
encap 192.168.1.1 to 192.168.1.2, type ipip, mac none len 100
test basic connectivity
nc: cannot use -p and -l
nc man page has:
-l Listen for an incoming connection rather than initiating
a connection to a remote host.Cannot be used together with
any of the options -psxz. Additionally, any timeouts specified
with the -w option are ignored.
Correct nc in server_listen().
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20210719223022.66681-1-vincent.mc.li@gmail.com
Acked-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
---
tools/testing/selftests/bpf/test_tc_tunnel.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/tools/testing/selftests/bpf/test_tc_tunnel.sh
+++ b/tools/testing/selftests/bpf/test_tc_tunnel.sh
@@ -69,7 +69,7 @@ cleanup() {
}
server_listen() {
- ip netns exec "${ns2}" nc "${netcat_opt}" -l -p "${port}" > "${outfile}" &
+ ip netns exec "${ns2}" nc "${netcat_opt}" -l "${port}" > "${outfile}" &
server_pid=$!
sleep 0.2
}