PIDFILE="/tmp/run/watchcat"
append_string() {
- local varname="$1"; local add="$2"; local separator="${3:- }"; local actual
+ local varname="$1"
+ local add="$2"
+ local separator="${3:- }"
+ local actual
eval "actual=\$$varname"
new="${actual:+$actual$separator}$add"
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)); }
+ { [ "$time" -ge 1 ] 2>/dev/null && seconds="$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
- config_get pinghosts $1 pinghosts
- config_get pingperiod $1 pingperiod
- config_get nopingtime $1 nopingtime
- config_get forcedelay $1 forcedelay
-
+ config_get period $1 period
+ config_get mode $1 mode
+ config_get pinghosts $1 pinghosts
+ config_get pingperiod $1 pingperiod
+ config_get nopingtime $1 nopingtime
+ config_get forcedelay $1 forcedelay
+
local nopingtime_dflt="900"
local forcedelay_dflt="60"
-
- # Fix potential typo in mode (backward compatibility).
- [ "$mode" = "allways" ] && mode="always"
+ # Fix potential typo in mode (backward compatibility).
+ [ "$mode" = "allways" ] && mode="periodic_reboot"
+ [ "$mode" = "always" ] && mode="periodic_reboot"
+ [ "$mode" = "ping" ] && mode="ping_reboot"
+
error=""
warn=""
-
- if [ -z "$period" ]
- then
- append_string "error" "period is not set! Use time value(ex: '30'; '4m'; '6h'; '2d')." "; "
+
+ if [ -z "$period" ]; then
+ append_string "error" "period is not set! Use time value(ex: '30'; '4m'; '6h'; '2d')." "; "
else
- timetoseconds "$period";period="$seconds"
- [ "$period" -ge 1 ] \
- || append_string "error" "period has invalid format! Use time value(ex: '30'; '4m'; '6h'; '2d')" "; "
+ timetoseconds "$period"
+ period="$seconds"
+ [ "$period" -ge 1 ] ||
+ append_string "error" "period has invalid format! Use time value(ex: '30'; '4m'; '6h'; '2d')" "; "
fi
-
- [ "$mode" = "always" -o "$mode" = "ping" ] \
- || append_string "error" "mode must be 'always' or 'ping'" "; "
-
- if [ -z "$forcedelay" ]
- then
- forcedelay="$forcedelay_dflt"
- append_string "warn" "forcedelay is not configured! Defaulted to $forcedelay seconds" "; "
+
+ [ "$mode" = "periodic_reboot" -o "$mode" = "ping_reboot" ] ||
+ append_string "error" "mode must be 'periodic_reboot' or 'ping_reboot'" "; "
+
+ if [ -z "$forcedelay" ]; then
+ forcedelay="$forcedelay_dflt"
+ append_string "warn" "forcedelay is not configured! Defaulted to $forcedelay seconds" "; "
else
[ "$forcedelay" -ge 0 ] || {
- forcedelay="$forcedelay_dflt"
- append_string "warn" "forcedelay is invalid! Defaulted to $forcedelay seconds" "; "
+ forcedelay="$forcedelay_dflt"
+ append_string "warn" "forcedelay is invalid! Defaulted to $forcedelay seconds" "; "
}
fi
-
- [ -z "$error" -a "$mode" = "ping" ] && {
- [ -z "$pinghosts" ] \
- && append_string "error" "pinghosts must be set in 'ping' mode! Use space separated address list (ex: '8.8.8.8 9.9.9.9')" "; "
-
- if [ -z "$nopingtime" ]
- then
+
+ [ -z "$error" -a "$mode" = "ping_reboot" ] && {
+ [ -z "$pinghosts" ] &&
+ append_string "error" "pinghosts must be set in 'ping_reboot' mode! Use space separated address list (ex: '8.8.8.8 9.9.9.9')" "; "
+
+ if [ -z "$nopingtime" ]; then
nopingtime="$nopingtime_dflt"
- append_string "warn" "nopingtime is not configured! Defaulted to $nopingtime seconds" "; "
+ append_string "warn" "nopingtime is not configured! Defaulted to $nopingtime seconds" "; "
else
- timetoseconds "$nopingtime";nopingtime="$seconds"
+ timetoseconds "$nopingtime"
+ nopingtime="$seconds"
[ "$nopingtime" -ge 0 ] || {
nopingtime="$nopingtime_dflt"
append_string "warn" "nopingtime invalid format! Use time value(ex: '30'; '4m'; '6h'; '2d'). Defaulted to $nopingtime seconds" "; "
}
fi
-
- local pingperiod_dflt="$((period/5))"
-
- if [ -z "$pingperiod" ]
- then
+
+ local pingperiod_dflt="$((period / 5))"
+
+ if [ -z "$pingperiod" ]; then
pingperiod="$pingperiod_dflt"
append_string "warn" "pingperiod is not configured! Defaulted to $pingperiod seconds(1/5 of period)" "; "
else
- timetoseconds "$pingperiod";pingperiod="$seconds"
+ timetoseconds "$pingperiod"
+ pingperiod="$seconds"
[ "$pingperiod" -ge 0 -a "$pingperiod" -ge "$period" ] && {
pingperiod="$pingperiod_dflt"
append_string "warn" "pingperiod is invalid value(greater than period)! Defaulted to $pingperiod seconds(1/5 of period)" "; "
}
[ "$pingperiod" -ge 0 ] || {
- pingperiod="$pingperiod_dflt"
+ pingperiod="$pingperiod_dflt"
append_string "warn" "pingperiod has invalid format! Use time value(ex: '30'; '4m'; '6h'; '2d'). Defaulted to $pingperiod seconds(1/5 of period)" "; "
- }
+ }
fi
}
-
+
[ -n "$warn" ] && logger -p user.warn -t "watchcat" "$1: $warn"
- [ -n "$error" ] && { logger -p user.err -t "watchcat" "reboot program $1 not started - $error"; return; }
+ [ -n "$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" &
+ case "$mode" in
+ periodic_reboot)
+ /usr/bin/watchcat.sh "periodic_reboot" "$period" "$forcedelay" &
logger -p user.info -t "watchcat" "started task (mode=$mode;period=$period;forcedelay=$forcedelay)"
- else
- /usr/bin/watchcat.sh "ping" "$period" "$forcedelay" "$pinghosts" "$pingperiod" "$nopingtime" &
- logger -p user.info -t "watchcat" "started task (mode=$mode;period=$period;pinghosts=$pinghosts;pingperiod=$pingperiod;forcedelay=$forcedelay;nopingtime=$nopingtime)"
- fi
-
- echo $! >> "${PIDFILE}.pids"
+ ;;
+ ping_reboot)
+ /usr/bin/watchcat.sh "ping_reboot" "$period" "$forcedelay" "$ping_hosts" "$ping_period" "$nopingtime" "$ping_size" &
+ logger -p user.info -t "watchcat" "started task (mode=$mode;period=$period;ping_hosts=$ping_hosts;ping_period=$ping_period;forcedelay=$forcedelay;nopingtime=$nopingtime)"
+ ;;
+ *)
+ echo "Error starting Watchcat service. Invalid mode selection: $mode"
+ ;;
+ esac
+
+ echo $! >>"${PIDFILE}.pids"
}
stop() {
- if [ -f "${PIDFILE}.pids" ]
- then
+ if [ -f "${PIDFILE}.pids" ]; then
logger -p user.info -t "watchcat" "stopping all tasks"
- while read pid
- do
+ while read pid; do
kill -KILL "$pid"
- done < "${PIDFILE}.pids"
+ done <"${PIDFILE}.pids"
rm "${PIDFILE}.pids"
[ -f "${PIDFILE}.pids" ] && stop
config_load system
- if [ -n "$(uci show system.@watchcat[0])" ] # at least one watchcat section exists
- then
+ if [ -n "$(uci show system.@watchcat[0])" ]; then # at least one watchcat section exists
logger -p user.info -t "watchcat" "starting all tasks"
config_foreach load_watchcat watchcat
logger -p user.info -t "watchcat" "all tasks started"
[ "$1" -ge 1 ] && {
sleep "$1"
- echo 1 > /proc/sys/kernel/sysrq
- echo b > /proc/sysrq-trigger # Will immediately reboot the system without syncing or unmounting your disks.
+ echo 1 >/proc/sys/kernel/sysrq
+ echo b >/proc/sysrq-trigger # Will immediately reboot the system without syncing or unmounting your disks.
}
}
-watchcat_always() {
- local period="$1"; local forcedelay="$2"
+watchcat_periodic() {
+ local period="$1"
+ local forcedelay="$2"
sleep "$period" && reboot_now "$forcedelay"
}
watchcat_ping() {
- local period="$1"; local forcedelay="$2"; local pinghosts="$3"; local pingperiod="$4"; local nopingtime="$5"
+ local period="$1"
+ local forcedelay="$2"
+ local pinghosts="$3"
+ local pingperiod="$4"
+ local nopingtime="$5"
- local time_now="$(cat /proc/uptime)";time_now="${time_now%%.*}"
+ local time_now="$(cat /proc/uptime)"
+ time_now="${time_now%%.*}"
- [ "$time_now" -lt "$nopingtime" ] && sleep "$((nopingtime-time_now))"
+ [ "$time_now" -lt "$nopingtime" ] && sleep "$((nopingtime - time_now))"
- time_now="$(cat /proc/uptime)";time_now="${time_now%%.*}"
+ time_now="$(cat /proc/uptime)"
+ time_now="${time_now%%.*}"
local time_lastcheck="$time_now"
local time_lastcheck_withinternet="$time_now"
- while true
- do
+ while true; do
# account for the time ping took to return. With a ping time of 5s, ping might take more than that, so it is important to avoid even more delay.
- time_now="$(cat /proc/uptime)"; time_now="${time_now%%.*}"
- local time_diff="$((time_now-time_lastcheck))"
+ time_now="$(cat /proc/uptime)"
+ time_now="${time_now%%.*}"
+ local time_diff="$((time_now - time_lastcheck))"
- [ "$time_diff" -lt "$pingperiod" ] && sleep "$((pingperiod-time_diff))"
+ [ "$time_diff" -lt "$pingperiod" ] && sleep "$((pingperiod - time_diff))"
- time_now="$(cat /proc/uptime)";time_now="${time_now%%.*}"
+ time_now="$(cat /proc/uptime)"
+ time_now="${time_now%%.*}"
time_lastcheck="$time_now"
- for host in $pinghosts
- do
- if ping -c 1 "$host" &> /dev/null
- then
+ for host in $pinghosts; do
+ if ping -c 1 "$host" &>/dev/null; then
time_lastcheck_withinternet="$time_now"
- else
- logger -p daemon.info -t "watchcat[$$]" "no internet connectivity for $((time_now-time_lastcheck_withinternet)). Reseting when reaching $period"
+ else
+ logger -p daemon.info -t "watchcat[$$]" "no internet connectivity for $((time_now - time_lastcheck_withinternet)). Reseting when reaching $period"
fi
done
-
- [ "$((time_now-time_lastcheck_withinternet))" -ge "$period" ] && reboot_now "$forcedelay"
+
+ [ "$((time_now - time_lastcheck_withinternet))" -ge "$period" ] && reboot_now "$forcedelay"
done
}
-if [ "$1" = "always" ]
-then
- watchcat_always "$2" "$3"
-else
+case "$mode" in
+periodic_reboot)
+ watchcat_periodic "$2" "$3"
+ ;;
+ping_reboot)
watchcat_ping "$2" "$3" "$4" "$5" "$6"
-fi
+ ;;
+*)
+ echo "Error: invalid mode selected: $mode"
+ ;;
+esac
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