From: Jiri Benc <jbenc@xxxxxxxxxx>
[ Upstream commit 106c35dda32f8b63f88cad7433f1b8bb0056958a ]
Out of the three nc implementations widely in use, at least two (BSD netcat
and nmap-ncat) do not support -l combined with -s. Modify the nc invocation
to be accepted by all of them.
Fixes: 17a90a788473 ("selftests/bpf: test that GSO works in lwt_ip_encap")
Signed-off-by: Jiri Benc <jbenc@xxxxxxxxxx>
Signed-off-by: Daniel Borkmann <daniel@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/bpf/9f177682c387f3f943bb64d849e6c6774df3c5b4.1570539863.git.jbenc@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
tools/testing/selftests/bpf/test_lwt_ip_encap.sh | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/tools/testing/selftests/bpf/test_lwt_ip_encap.sh b/tools/testing/selftests/bpf/test_lwt_ip_encap.sh
index acf7a74f97cd9..59ea56945e6cd 100755
--- a/tools/testing/selftests/bpf/test_lwt_ip_encap.sh
+++ b/tools/testing/selftests/bpf/test_lwt_ip_encap.sh
@@ -314,15 +314,15 @@ test_gso()
command -v nc >/dev/null 2>&1 || \
{ echo >&2 "nc is not available: skipping TSO tests"; return; }
- # listen on IPv*_DST, capture TCP into $TMPFILE
+ # listen on port 9000, capture TCP into $TMPFILE
if [ "${PROTO}" == "IPv4" ] ; then
IP_DST=${IPv4_DST}
ip netns exec ${NS3} bash -c \
- "nc -4 -l -s ${IPv4_DST} -p 9000 > ${TMPFILE} &"
+ "nc -4 -l -p 9000 > ${TMPFILE} &"
elif [ "${PROTO}" == "IPv6" ] ; then
IP_DST=${IPv6_DST}
ip netns exec ${NS3} bash -c \
- "nc -6 -l -s ${IPv6_DST} -p 9000 > ${TMPFILE} &"
+ "nc -6 -l -p 9000 > ${TMPFILE} &"
RET=$?
else
echo " test_gso: unknown PROTO: ${PROTO}"
--
2.20.1
