6.6-stable review patch. If anyone has any objections, please let me know.
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From: Jakub Kicinski kuba@kernel.org
[ Upstream commit 4c639b6a7b9db236c0907aca8e92d1537076f2cd ]
The test seems to expect that nc will exit after the first received message. This is not the case with Ncat 7.94. There are multiple versions of nc out there, switch to socat for better compatibility.
Tell socat to exit after 128 bytes and pad the message.
Since the test sets -e make sure we don't set exit code (|| true) and print the pass / fail rather then silently moving over the test and just setting non-zero exit code with no output indicating what failed.
Fixes: c08e8baea78e ("selftests: add amt interface selftest script") Acked-by: Paolo Abenipabeni@redhat.com Tested-by: Taehee Yoo ap420073@gmail.com Link: https://lore.kernel.org/r/20240509161952.3940476-1-kuba@kernel.org Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/net/amt.sh | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/tools/testing/selftests/net/amt.sh b/tools/testing/selftests/net/amt.sh index 75528788cb95e..5175a42cbe8a2 100755 --- a/tools/testing/selftests/net/amt.sh +++ b/tools/testing/selftests/net/amt.sh @@ -210,8 +210,8 @@ check_features()
test_ipv4_forward() { - RESULT4=$(ip netns exec "${LISTENER}" nc -w 1 -l -u 239.0.0.1 4000) - if [ "$RESULT4" == "172.17.0.2" ]; then + RESULT4=$(ip netns exec "${LISTENER}" timeout 15 socat - UDP4-LISTEN:4000,readbytes=128 || true) + if echo "$RESULT4" | grep -q "172.17.0.2"; then printf "TEST: %-60s [ OK ]\n" "IPv4 amt multicast forwarding" exit 0 else @@ -222,8 +222,8 @@ test_ipv4_forward()
test_ipv6_forward() { - RESULT6=$(ip netns exec "${LISTENER}" nc -w 1 -l -u ff0e::5:6 6000) - if [ "$RESULT6" == "2001:db8:3::2" ]; then + RESULT6=$(ip netns exec "${LISTENER}" timeout 15 socat - UDP6-LISTEN:6000,readbytes=128 || true) + if echo "$RESULT6" | grep -q "2001:db8:3::2"; then printf "TEST: %-60s [ OK ]\n" "IPv6 amt multicast forwarding" exit 0 else @@ -236,14 +236,14 @@ send_mcast4() { sleep 2 ip netns exec "${SOURCE}" bash -c \ - 'echo 172.17.0.2 | nc -w 1 -u 239.0.0.1 4000' & + 'printf "%s %128s" 172.17.0.2 | nc -w 1 -u 239.0.0.1 4000' & }
send_mcast6() { sleep 2 ip netns exec "${SOURCE}" bash -c \ - 'echo 2001:db8:3::2 | nc -w 1 -u ff0e::5:6 6000' & + 'printf "%s %128s" 2001:db8:3::2 | nc -w 1 -u ff0e::5:6 6000' & }
check_features