initd_watchcat (3202B)
1 #!/bin/sh /etc/rc.common 2 3 START=97 4 5 PIDFILE="/tmp/run/watchcat" 6 7 append_string() { 8 local varname="$1"; local add="$2"; local separator="${3:- }"; local actual 9 eval "actual=\$$varname" 10 11 new="${actual:+$actual$separator}$add" 12 eval "$varname=\$new" 13 } 14 15 timetoseconds() { 16 local time=$1 17 unset seconds 18 19 { [ "$time" -ge 1 ] 2> /dev/null && seconds="$time"; } || \ 20 { [ "${time%s}" -ge 1 ] 2> /dev/null && seconds="${time%s}"; } || \ 21 { [ "${time%m}" -ge 1 ] 2> /dev/null && seconds=$((${time%m}*60)); } || \ 22 { [ "${time%h}" -ge 1 ] 2> /dev/null && seconds=$((${time%h}*3600)); } || \ 23 { [ "${time%d}" -ge 1 ] 2> /dev/null && seconds=$((${time%d}*86400)); } 24 } 25 26 load_watchcat() { 27 config_get period $1 period 28 config_get mode $1 mode "always" 29 config_get pinghosts $1 pinghosts "8.8.8.8" 30 config_get pingperiod $1 pingperiod 31 config_get forcedelay $1 forcedelay "0" 32 33 # Fix potential typo in mode (backward compatibility). 34 [ "$mode" = "allways" ] && mode="always" 35 36 error="" 37 38 timetoseconds "$period" 39 period="$seconds" 40 [ "$period" -ge 1 ] \ 41 || append_string "error" 'period is not a valid time value (ex: "30"; "4m"; "6h"; "2d")' "; " 42 [ "$mode" = "always" -o "$mode" = "ping" ] \ 43 || append_string "error" "mode must be 'always' or 'ping'" "; " 44 [ -n "$pinghosts" -o "$mode" = "always" ] \ 45 || append_string "error" "pinghosts must be set when in 'ping' mode" "; " 46 [ "$mode" = "ping" ] && { 47 if [ -n "$pingperiod" ] 48 then 49 timetoseconds "$pingperiod" 50 pingperiod="$seconds" 51 if [ "$pingperiod" -ge 0 ] 52 then 53 [ "$pingperiod" -lt "$period" ] \ 54 || append_string "error" "pingperiod must be less than period" "; " 55 else 56 append_string "error" 'pingperiod is not a valid time value (ex: "30"; "4m"; "6h"; "2d")' "; " 57 fi 58 else 59 pingperiod="$((period/20))" 60 fi 61 } 62 [ "$forcedelay" -ge 0 ] \ 63 || append_string "error" "forcedelay must be a integer greater or equal than 0, where 0 means disabled" "; " 64 65 [ -n "$error" ] && { logger -p user.err -t "watchcat" "reboot program $1 not started - $error"; return; } 66 67 if [ "$mode" = "always" ] 68 then 69 /usr/bin/watchcat.sh "always" "$period" "$forcedelay" & 70 logger -p user.info -t "watchcat" "started task (mode=$mode;period=$period;forcedelay=$forcedelay)" 71 else 72 /usr/bin/watchcat.sh "period" "$period" "$forcedelay" "$pinghosts" "$pingperiod" & 73 logger -p user.info -t "watchcat" "started task (mode=$mode;period=$period;pinghosts=$pinghosts;pingperiod=$pingperiod;forcedelay=$forcedelay)" 74 fi 75 76 echo $! >> "${PIDFILE}.pids" 77 } 78 79 stop() { 80 if [ -f "${PIDFILE}.pids" ] 81 then 82 logger -p user.info -t "watchcat" "stopping all tasks" 83 84 while read pid 85 do 86 kill "$pid" 87 done < "${PIDFILE}.pids" 88 89 rm "${PIDFILE}.pids" 90 91 logger -p user.info -t "watchcat" "all tasks stopped" 92 else 93 logger -p user.info -t "watchcat" "no tasks running" 94 fi 95 } 96 97 start() { 98 [ -f "${PIDFILE}.pids" ] && stop 99 100 config_load system 101 if [ -n "$(uci show system.@watchcat[0])" ] # at least one watchcat section exists 102 then 103 logger -p user.info -t "watchcat" "starting all tasks" 104 config_foreach load_watchcat watchcat 105 logger -p user.info -t "watchcat" "all tasks started" 106 else 107 logger -p user.info -t "watchcat" "no tasks defined" 108 fi 109 }