Initial import data
This commit is contained in:
Rafal Kupiec
parent
0d026c65f0
commit
bc965ec302
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include $(TOPDIR)/rules.mk
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PKG_NAME:=wanmonitor
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PKG_RELEASE:=20180423
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PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
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include $(INCLUDE_DIR)/package.mk
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define Package/wanmonitor
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SECTION:=net
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CATEGORY:=Network
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TITLE:=WAN Monitor & Failover Connection Manager
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MAINTAINER:=Rafal Kupiec <belliash@codingworkshop.eu.org>
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PKGARCH:=all
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endef
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define Package/wanmonitor/description
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WAN Monitor & Failover Connection Manager
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endef
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define Build/Prepare
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endef
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define Build/Configure
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endef
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define Build/Compile
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endef
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define Package/wanmonitor/install
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$(CP) ./files/* $(1)
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endef
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$(eval $(call BuildPackage,wanmonitor))
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config wanmonitor
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option check_host '8.8.4.4'
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option interval '5'
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option wan_primary 'wan1'
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option wan_secondary 'wan2'
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#!/bin/sh /etc/rc.common
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START=99
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start() {
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/usr/bin/wanmonitor -d &
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}
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stop() {
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kill $(pidof wanmonitor)
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}
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@ -0,0 +1,118 @@
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#!/bin/sh
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# Copyright(C) 2018, Rafal Kupiec <belliash@codingworkshop.eu.org>
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source /lib/functions/network.sh
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DAEMONIZE=0
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LOGGER_ALERT=1
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LOGGER_CRITICAL=2
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LOGGER_ERROR=3
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LOGGER_WARNING=4
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LOGGER_NOTICE=5
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LOGGER_INFO=6
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LOGGER_DEBUG=7
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function initialize() {
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/usr/bin/logger -t $0 -p ${LOGGER_NOTICE} "Starting WAN Monitor ..."
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sleep 60
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/usr/bin/logger -t $0 -p ${LOGGER_NOTICE} "Initializing WAN Monitor & Failover Connection Manager"
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CHECK_HOST=$(/sbin/uci -q get wanmonitor.@wanmonitor[0].check_host)
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INTERVAL=$(/sbin/uci -q get wanmonitor.@wanmonitor[0].interval)
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WAN_PRIMARY=$(/sbin/uci -q get wanmonitor.@wanmonitor[0].wan_primary)
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WAN_SECONDARY=$(/sbin/uci -q get wanmonitor.@wanmonitor[0].wan_secondary)
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network_get_device IFNAME_WAN_PRIMARY ${WAN_PRIMARY}
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network_get_gateway GATEWAY_WAN_PRIMARY ${WAN_PRIMARY}
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network_get_device IFNAME_WAN_SECONDARY ${WAN_SECONDARY}
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network_get_gateway GATEWAY_WAN_SECONDARY ${WAN_SECONDARY}
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if [ "x${IFNAME_WAN_PRIMARY}" = "x" ]; then
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IFNAME_WAN_PRIMARY=$(/sbin/uci -q -P /var/state get network.${WAN_PRIMARY}.ifname)
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fi
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if [ "x${GATEWAY_WAN_PRIMARY}" = "x" ]; then
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GATEWAY_WAN_PRIMARY=$(uci -q -P /var/state get network.${WAN_PRIMARY}.gateway)
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fi
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if [ "x${GATEWAY_WAN_PRIMARY}" = "x" ]; then
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GATEWAY_WAN_PRIMARY=$(ifstatus ${WAN_PRIMARY} | grep -A 2 "\"target\": \"0.0.0.0\"," | awk '/nexthop/ {gsub(/[",]/, "");print $2}')
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fi
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if [ "x${IFNAME_WAN_SECONDARY}" = "x" ]; then
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IFNAME_WAN_SECONDARY=$(/sbin/uci -q -P /var/state get network.${WAN_SECONDARY}.ifname)
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fi
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if [ "x${GATEWAY_WAN_SECONDARY}" = "x" ]; then
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GATEWAY_WAN_SECONDARY=$(uci -q -P /var/state get network.${WAN_SECONDARY}.gateway)
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fi
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if [ "x${GATEWAY_WAN_SECONDARY}" = "x" ]; then
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GATEWAY_WAN_SECONDARY=$(ifstatus ${WAN_SECONDARY} | grep -A 2 "\"target\": \"0.0.0.0\"," | awk '/nexthop/ {gsub(/[",]/, "");print $2}')
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fi
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for IFNAME_WAN in ${IFNAME_WAN_PRIMARY} ${IFNAME_WAN_SECONDARY}; do
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if [ "x${IFNAME_WAN}" = "x" ]; then
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/usr/bin/logger -t $0 -p ${LOGGER_CRITICAL} "Lack of logical interface for one of WAN connections!"
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exit 1
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fi
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done
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for GATEWAY_WAN in ${GATEWAY_WAN_PRIMARY} ${GATEWAY_WAN_SECONDARY}; do
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if [ "x${GATEWAY_WAN}" = "x" ]; then
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/usr/bin/logger -t $0 -p ${LOGGER_CRITICAL} "Lack of gateway on logical interface for one of WAN connections!"
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exit 2
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fi
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done
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/usr/bin/logger -t $0 -p ${LOGGER_DEBUG} "Primary WAN Interface: ${IFNAME_WAN_PRIMARY}, Gateway: ${GATEWAY_WAN_PRIMARY}"
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/usr/bin/logger -t $0 -p ${LOGGER_DEBUG} "Secondary WAN Interface: ${IFNAME_WAN_SECONDARY}, Gateway: ${GATEWAY_WAN_SECONDARY}"
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/usr/bin/logger -t $0 -p ${LOGGER_DEBUG} "Checking host: ${CHECK_HOST} every ${INTERVAL} seconds interval"
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}
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until [[ -z "${1}" ]]; do
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case "${1}" in
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-d|--daemon)
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DAEMONIZE=1
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;;
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*)
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echo "Unknown option: ${1}"
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;;
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esac
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shift
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done
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if [ "x${DAEMONIZE}" = "x0" ]; then
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echo "This program can be running only as daemon. Please use init script."
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exit 0
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fi
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initialize
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/usr/bin/logger -t $0 -p ${LOGGER_NOTICE} "Entering link monitoring loop ..."
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WAN=0
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while true; do
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WAN_PRIMARY_STATUS=$(ifstatus ${WAN_PRIMARY} | grep grep \"up\" | awk '{gsub(/[",]/, ""); print $2}')
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if [ "x${WAN_PRIMARY_STATUS}" = "xtrue" ]; then
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CHECK_ROUTE=$(route | grep ${CHECK_HOST} | grep ${IFNAME_WAN_PRIMARY} | wc -l)
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if [ "x${CHECK_ROUTE}" = "x0" ]; then
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/sbin/route add -host ${CHECK_HOST} gateway ${GATEWAY_WAN_PRIMARY} ${IFNAME_WAN_PRIMARY} &>/dev/null
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fi
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WAN_PRIMARY_PING=$(ping -I ${IFNAME_WAN_PRIMARY} -w 3 -c 3 ${CHECK_HOST} 2>/dev/null | awk '/packets received/ {print $4}')
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fi
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if [ "x${WAN_PRIMARY_STATUS}" = "xfalse" ] || [ "x${WAN_PRIMARY_PING}" = "x0" ]; then
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if [ "${WAN}" = "0" ] || [ "${WAN}" = "1" ]; then
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/usr/bin/logger -t $0 -p ${LOGGER_ALERT} "Primary WAN Interface is DOWN! Switching traffic to ${WAN_SECONDARY}."
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/sbin/route del default gw ${GATEWAY_WAN_PRIMARY} ${IFNAME_WAN_PRIMARY} &>/dev/null
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/sbin/route add default gw ${GATEWAY_WAN_SECONDARY} ${IFNAME_WAN_SECONDARY} &>/dev/null
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WAN=2
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fi
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else
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if [ "${WAN}" = "0" ] || [ "${WAN}" = "2" ]; then
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/usr/bin/logger -t $0 -p ${LOGGER_ALERT} "Primary WAN Interface is UP! Switching traffic to ${WAN_PRIMARY}."
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/sbin/route del default gw ${GATEWAY_WAN_SECONDARY} ${IFNAME_WAN_SECONDARY} &>/dev/null
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/sbin/route add default gw ${GATEWAY_WAN_PRIMARY} ${IFNAME_WAN_PRIMARY} &>/dev/null
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WAN=1
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fi
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fi
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sleep ${INTERVAL}
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done
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