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selftests: net: add socat syslog for PPPoL2TP

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As done in pppoe.sh, start socat as the syslog listener. In case the
test fails, dump its log to see what's going on.

Signed-off-by: Qingfang Deng <qingfang.deng@linux.dev>
Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Link: https://patch.msgid.link/20260529021146.5739-1-qingfang.deng@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Qingfang Deng 2026-05-29 10:11:42 +08:00 committed by Jakub Kicinski
parent dae89316d0
commit ae4ef7271c
1 changed files with 15 additions and 0 deletions
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15
tools/testing/selftests/net/ppp/pppol2tp.sh
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@ -9,10 +9,12 @@ OUTER_IP_SERVER="172.16.1.1"
OUTER_IP_CLIENT="172.16.1.2"
PPPOL2TP_DIR=$(mktemp -d /tmp/pppol2tp.XXXXXX)
PPPOL2TP_LOG="$PPPOL2TP_DIR/l2tp.log"
# shellcheck disable=SC2329
cleanup() {
cleanup_all_ns
[ -n "$SOCAT_PID" ] && kill_process "$SOCAT_PID"
rm -rf "$PPPOL2TP_DIR"
}
@ -31,6 +33,10 @@ ip -netns "$NS_CLIENT" link set "$VETH_CLIENT" up
ip -netns "$NS_SERVER" address add dev "$VETH_SERVER" "$OUTER_IP_SERVER" peer "$OUTER_IP_CLIENT"
ip -netns "$NS_CLIENT" address add dev "$VETH_CLIENT" "$OUTER_IP_CLIENT" peer "$OUTER_IP_SERVER"
# Start socat as syslog listener
socat -v -u UNIX-RECV:/dev/log OPEN:/dev/null > "$PPPOL2TP_LOG" 2>&1 &
SOCAT_PID=$!
# Generate configuration files
cat > "$PPPOL2TP_DIR/l2tp-server.conf" <<EOF
[global]
@ -92,4 +98,13 @@ check_fail $?
log_test "PPPoL2TP Recursion"
# Dump syslog messages if the test failed
if [ "$EXIT_STATUS" -ne 0 ]; then
while read -r _sign _date _time len _from _to
do len=${len##*=}
read -n "$len" -r LINE
echo "$LINE"
done < "$PPPOL2TP_LOG"
fi
exit "$EXIT_STATUS"