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selftests/bpf: More compatible nc options in test_tc_edt 

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: 7df5e3db8f ("selftests: bpf: tc-bpf flow shaping with EDT")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Peter Oskolkov <posk@google.com>
Link: https://lore.kernel.org/bpf/f5bf07dccd8b552a76c84d49e80b86c5aa071122.1571400024.git.jbenc@redhat.com
This commit is contained in:
Jiri Benc 2019-10-18 14:00:42 +02:00 committed by Daniel Borkmann
parent 9e8acd9c44
commit 11875ba7f2
1 changed files with 1 additions and 1 deletions
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2
tools/testing/selftests/bpf/test_tc_edt.sh
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@ -59,7 +59,7 @@ ip netns exec ${NS_SRC} tc filter add dev veth_src egress \
# start the listener
ip netns exec ${NS_DST} bash -c \
"nc -4 -l -s ${IP_DST} -p 9000 >/dev/null &"
"nc -4 -l -p 9000 >/dev/null &"
declare -i NC_PID=$!
sleep 1