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|
#!/bin/bash
case "$XT_MULTI" in
*xtables-legacy-multi)
;;
*)
echo skip $XT_MULTI
exit 0
;;
esac
coproc RESTORE { $XT_MULTI iptables-restore; }
echo "*filter" >&${RESTORE[1]}
$XT_MULTI iptables -A FORWARD -j ACCEPT &
ipt_pid=$!
waitpid -t 1 $ipt_pid
[[ $? -eq 3 ]] && {
echo "process waits when it should not"
exit 1
}
wait $ipt_pid
[[ $? -eq 0 ]] && {
echo "process exited 0 despite busy lock"
exit 1
}
t0=$(date +%s)
$XT_MULTI iptables -w 3 -A FORWARD -j ACCEPT
t1=$(date +%s)
[[ $((t1 - t0)) -ge 3 ]] || {
echo "wait time not expired"
exit 1
}
$XT_MULTI iptables -w -A FORWARD -j ACCEPT &
ipt_pid=$!
waitpid -t 3 $ipt_pid
[[ $? -eq 3 ]] || {
echo "no indefinite wait"
exit 1
}
kill $ipt_pid
waitpid -t 3 $ipt_pid
[[ $? -eq 3 ]] && {
echo "killed waiting iptables call did not exit in time"
exit 1
}
kill $RESTORE_PID
wait
exit 0
|
