#!/bin/sh /etc/rc.common START=97 PIDFILE="/tmp/run/watchcat" append_string() { local varname="$1"; local add="$2"; local separator="${3:- }"; local actual eval "actual=\$$varname" new="${actual:+$actual$separator}$add" eval "$varname=\$new" } timetoseconds() { local time=$1 unset seconds { [ "$time" -ge 1 ] 2> /dev/null && seconds="$time"; } || \ { [ "${time%s}" -ge 1 ] 2> /dev/null && seconds="${time%s}"; } || \ { [ "${time%m}" -ge 1 ] 2> /dev/null && seconds=$((${time%m}*60)); } || \ { [ "${time%h}" -ge 1 ] 2> /dev/null && seconds=$((${time%h}*3600)); } || \ { [ "${time%d}" -ge 1 ] 2> /dev/null && seconds=$((${time%d}*86400)); } } load_watchcat() { config_get period $1 period config_get mode $1 mode "always" config_get pinghosts $1 pinghosts "8.8.8.8" config_get pingperiod $1 pingperiod config_get forcedelay $1 forcedelay "0" # Fix potential typo in mode (backward compatibility). [ "$mode" = "allways" ] && mode="always" error="" timetoseconds "$period" period="$seconds" [ "$period" -ge 1 ] \ || append_string "error" 'period is not a valid time value (ex: "30"; "4m"; "6h"; "2d")' "; " [ "$mode" = "always" -o "$mode" = "ping" ] \ || append_string "error" "mode must be 'always' or 'ping'" "; " [ -n "$pinghosts" -o "$mode" = "always" ] \ || append_string "error" "pinghosts must be set when in 'ping' mode" "; " [ "$mode" = "ping" ] && { if [ -n "$pingperiod" ] then timetoseconds "$pingperiod" pingperiod="$seconds" if [ "$pingperiod" -ge 0 ] then [ "$pingperiod" -le "$period" ] \ || append_string "error" "pingperiod must be less than period" "; " else append_string "error" 'pingperiod is not a valid time value (ex: "30"; "4m"; "6h"; "2d")' "; " fi else pingperiod="$((period/20))" fi } [ "$pingperiod" -lt "$period" -o "$mode" = "always" ] \ || append_string "error" "pingperiod is not recognized" "; " [ "$forcedelay" -ge 0 ] \ || append_string "error" "forcedelay must be a integer greater or equal than 0, where 0 means disabled" "; " [ -n "$error" ] && { logger -p user.err -t "watchcat" "reboot program $1 not started - $error"; return; } if [ "$mode" = "always" ] then /usr/bin/watchcat.sh "always" "$period" "$forcedelay" & logger -p user.info -t "watchcat" "started task (mode=$mode;period=$period;forcedelay=$forcedelay)" else /usr/bin/watchcat.sh "period" "$period" "$forcedelay" "$pinghosts" "$pingperiod" & logger -p user.info -t "watchcat" "started task (mode=$mode;period=$period;pinghosts=$pinghosts;pingperiod=$pingperiod;forcedelay=$forcedelay)" fi echo $! >> "${PIDFILE}.pids" } stop() { if [ -f "${PIDFILE}.pids" ] then logger -p user.info -t "watchcat" "stopping all tasks" while read pid do kill "$pid" done < "${PIDFILE}.pids" rm "${PIDFILE}.pids" logger -p user.info -t "watchcat" "all tasks stopped" else logger -p user.info -t "watchcat" "no tasks running" fi } start() { [ -f "${PIDFILE}.pids" ] && stop config_load system if [ -n "$(uci show system.@watchcat[0])" ] # at least one watchcat section exists then logger -p user.info -t "watchcat" "starting all tasks" config_foreach load_watchcat watchcat logger -p user.info -t "watchcat" "all tasks started" else logger -p user.info -t "watchcat" "no tasks defined" fi }