watchcat: add with myself as maintainer
Signed-off-by: Roger D rogerdammit@gmail.com
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Roger
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4 changed files with 231 additions and 0 deletions
44
utils/watchcat/Makefile
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44
utils/watchcat/Makefile
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#
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# Copyright (C) 2010 segal.di.ubi.pt
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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include $(TOPDIR)/rules.mk
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PKG_NAME:=watchcat
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PKG_VERSION:=1
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PKG_RELEASE:=5
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PKG_MAINTAINER:=Roger D <rogerdammit@gmail.com>
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include $(INCLUDE_DIR)/package.mk
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define Package/watchcat
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SECTION:=utils
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CATEGORY:=Utilities
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TITLE:=Enable the configuration of programed reboots
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endef
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define Package/watchcat/description
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Allows to configure a periodically reboot, or after loosing internet connectivity. Configured trough UCI /etc/config/system.
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endef
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define Package/watchcat/conffiles
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/etc/config/system
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endef
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define Build/Compile
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endef
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define Package/watchcat/install
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$(INSTALL_DIR) $(1)/etc/init.d
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$(INSTALL_BIN) ./files/initd_watchcat $(1)/etc/init.d/watchcat
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$(INSTALL_DIR) $(1)/usr/bin
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$(INSTALL_BIN) ./files/watchcat.sh $(1)/usr/bin/watchcat.sh
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$(INSTALL_DIR) $(1)/etc/uci-defaults
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$(INSTALL_BIN) ./files/uci_defaults_watchcat $(1)/etc/uci-defaults/50-watchcat
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endef
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$(eval $(call BuildPackage,watchcat))
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108
utils/watchcat/files/initd_watchcat
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108
utils/watchcat/files/initd_watchcat
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#!/bin/sh /etc/rc.common
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START=97
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PIDFILE="/tmp/run/watchcat"
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append_string() {
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local varname="$1"; local add="$2"; local separator="${3:- }"; local actual
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eval "actual=\$$varname"
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new="${actual:+$actual$separator}$add"
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eval "$varname=\$new"
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}
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timetoseconds() {
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local time=$1
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unset seconds
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{ [ "$time" -ge 1 ] 2> /dev/null && seconds="$time"; } || \
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{ [ "${time%s}" -ge 1 ] 2> /dev/null && seconds="${time%s}"; } || \
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{ [ "${time%m}" -ge 1 ] 2> /dev/null && seconds=$((${time%m}*60)); } || \
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{ [ "${time%h}" -ge 1 ] 2> /dev/null && seconds=$((${time%h}*3600)); } || \
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{ [ "${time%d}" -ge 1 ] 2> /dev/null && seconds=$((${time%d}*86400)); }
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}
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load_watchcat() {
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config_get period $1 period
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config_get mode $1 mode "allways"
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config_get pinghosts $1 pinghosts "8.8.8.8"
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config_get pingperiod $1 pingperiod
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config_get forcedelay $1 forcedelay "0"
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error=""
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timetoseconds "$period"
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period="$seconds"
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[ "$period" -ge 1 ] \
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|| append_string "error" 'period is not a valid time value (ex: "30"; "4m"; "6h"; "2d")' "; "
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[ "$mode" = "allways" -o "$mode" = "ping" ] \
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|| append_string "error" "mode must be 'allways' or 'ping'" "; "
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[ -n "$pinghosts" -o "$mode" = "allways" ] \
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|| append_string "error" "pinghosts must be set when in 'ping' mode" "; "
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[ "$mode" = "ping" ] && {
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if [ -n "$pingperiod" ]
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then
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timetoseconds "$pingperiod"
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pingperiod="$seconds"
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if [ "$pingperiod" -ge 0 ]
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then
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[ "$pingperiod" -le "$period" ] \
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|| append_string "error" "pingperiod must be less than period" "; "
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else
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append_string "error" 'pingperiod is not a valid time value (ex: "30"; "4m"; "6h"; "2d")' "; "
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fi
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else
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pingperiod="$((period/20))"
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fi
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}
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[ "$pingperiod" -lt "$period" -o "$mode" = "allways" ] \
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|| append_string "error" "pingperiod is not recognized" "; "
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[ "$forcedelay" -ge 0 ] \
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|| append_string "error" "forcedelay must be a integer greater or equal than 0, where 0 means disabled" "; "
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[ -n "$error" ] && { logger -p user.err -t "watchcat" "reboot program $1 not started - $error"; return; }
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if [ "$mode" = "allways" ]
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then
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/usr/bin/watchcat.sh "allways" "$period" "$forcedelay" &
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logger -p user.info -t "wathchat" "started task (mode=$mode;period=$period;forcedelay=$forcedelay)"
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else
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/usr/bin/watchcat.sh "period" "$period" "$forcedelay" "$pinghosts" "$pingperiod" &
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logger -p user.info -t "wathchat" "started task (mode=$mode;period=$period;pinghosts=$pinghosts;pingperiod=$pingperiod;forcedelay=$forcedelay)"
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fi
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echo $! >> "${PIDFILE}.pids"
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}
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stop() {
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if [ -f "${PIDFILE}.pids" ]
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then
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logger -p user.info -t "watchcat" "stopping all tasks"
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while read pid
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do
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kill "$pid"
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done < "${PIDFILE}.pids"
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rm "${PIDFILE}.pids"
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logger -p user.info -t "watchcat" "all tasks stopped"
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else
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logger -p user.info -t "watchcat" "no tasks running"
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fi
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}
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start() {
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[ -f "${PIDFILE}.pids" ] && stop
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config_load system
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if [ -n "$(uci show system.@watchcat[0])" ] # at least one watchcat section exists
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then
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logger -p user.info -t "watchcat" "starting all tasks"
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config_foreach load_watchcat watchcat
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logger -p user.info -t "watchcat" "all tasks started"
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else
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logger -p user.info -t "watchcat" "no tasks defined"
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fi
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}
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10
utils/watchcat/files/uci_defaults_watchcat
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10
utils/watchcat/files/uci_defaults_watchcat
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#!/bin/sh
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uci -q show system.@watchcat[0] || {
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uci add system watchcat
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uci set system.@watchcat[0].period=6h
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uci set system.@watchcat[0].mode=ping
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uci set system.@watchcat[0].pinghosts=8.8.8.8
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uci set system.@watchcat[0].forcedelay=30
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uci commit
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}
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69
utils/watchcat/files/watchcat.sh
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69
utils/watchcat/files/watchcat.sh
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#!/bin/sh
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mode="$1"
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shutdown_now() {
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local forcedelay="$1"
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reboot &
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[ "$forcedelay" -ge 1 ] && {
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sleep "$forcedelay"
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echo b > /proc/sysrq-trigger # Will immediately reboot the system without syncing or unmounting your disks.
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}
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}
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watchcat_allways() {
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local period="$1"; local forcedelay="$2"
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sleep "$period" && shutdown_now "$forcedelay"
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}
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watchcat_ping() {
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local period="$1"; local forcedelay="$2"; local pinghosts="$3"; local pingperiod="$4"
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time_now="$(cat /proc/uptime)"
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time_now="${time_now%%.*}"
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time_lastcheck="$time_now"
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time_lastcheck_withinternet="$time_now"
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while true
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do
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# account for the time ping took to return. With a ping time of 5s, ping might take more than that, so it is important to avoid even more delay.
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time_now="$(cat /proc/uptime)"
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time_now="${time_now%%.*}"
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time_diff="$((time_now-time_lastcheck))"
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[ "$time_diff" -lt "$pingperiod" ] && {
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sleep_time="$((pingperiod-time_diff))"
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sleep "$sleep_time"
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}
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time_now="$(cat /proc/uptime)"
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time_now="${time_now%%.*}"
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time_lastcheck="$time_now"
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for host in "$pinghosts"
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do
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if ping -c 1 "$host" &> /dev/null
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then
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time_lastcheck_withinternet="$time_now"
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else
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time_diff="$((time_now-time_lastcheck_withinternet))"
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logger -p daemon.info -t "watchcat[$$]" "no internet connectivity for $time_diff seconds. Reseting when reaching $period"
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fi
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done
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time_diff="$((time_now-time_lastcheck_withinternet))"
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[ "$time_diff" -ge "$period" ] && shutdown_now "$forcedelay"
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done
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}
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if [ "$mode" = "allways" ]
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then
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watchcat_allways "$2" "$3"
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else
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watchcat_ping "$2" "$3" "$4" "$5"
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fi
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