🌴 Sync 2026-03-05 23:51:42

pingcontrol/Makefile

@@ -0,0 +1,40 @@
+:
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=pingcontrol
+PKG_VERSION:=1
+PKG_RELEASE:=1
+PKG_BUILD_DIR:=$(BUILD_DIR)/pingcontrol
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/pingcontrol
+  SECTION:=utils
+  CATEGORY:=Utilities
+  TITLE:=Network interface watchdog
+  PKGARCH:=all
+endef
+
+define Package/pingcontrol/description
+	 This package contains a utility for managing the interface using ping requests.
+endef
+
+define Build/Prepare
+endef
+
+define Build/Configure
+endef
+
+define Build/Compile
+endef
+
+define Package/pingcontrol/install
+	$(INSTALL_DIR) $(1)/bin
+	$(INSTALL_BIN) ./files/pingcontrol $(1)/bin/
+	$(INSTALL_DIR) $(1)/etc/config
+	$(CP) ./files/pingcontrol.config $(1)/etc/config/pingcontrol
+	$(INSTALL_DIR) $(1)/etc/init.d
+	$(INSTALL_BIN) ./files/pingcontrol.init $(1)/etc/init.d/pingcontrol
+endef
+
+$(eval $(call BuildPackage,pingcontrol))

pingcontrol/files/pingcontrol

@@ -0,0 +1,114 @@
+#!/bin/sh
+
+. /usr/share/libubox/jshn.sh
+
+INSTANCE=$1
+IFACE=$(uci -q get pingcontrol.$1.iface)
+CHECK_PERIOD=$(uci -q get pingcontrol.$1.check_period)
+TESTIP=$(uci -q get pingcontrol.$1.testip)
+SW_BEFORE_MODRES=$(uci -q get pingcontrol.$1.sw_before_modres)
+SW_BEFORE_SYSRES=$(uci -q get pingcontrol.$1.sw_before_sysres)
+
+PING_OK=$(uci -q get pingcontrol.$1.ping_ok)
+SILENT=$(uci -q get pingcontrol.$1.ping_silent)
+PING_LOST=$(uci -q get pingcontrol.$1.ping_lost)
+PING_RESTORED=$(uci -q get pingcontrol.$1.ping_restored)
+BEFORE_IFACE_DOWN=$(uci -q get pingcontrol.$1.before_iface_down)
+AFTER_IFACE_UP=$(uci -q get pingcontrol.$1.after_iface_up)
+BEFORE_REBOOT=$(uci -q get pingcontrol.$1.before_reboot)
+
+host_up_count=0
+lost1=0
+lost2=0
+lost_flag=0
+IP_COUNT=$(echo $TESTIP | wc -w)
+let SW_BEFORE_MODRES=SW_BEFORE_MODRES*IP_COUNT
+let SW_BEFORE_SYSRES=SW_BEFORE_SYSRES*IP_COUNT
+
+ubus call network.interface.$IFACE up
+while [[ -z "$IFNAME" ]]; do
+	json_load "$(ubus call network.interface.$IFACE status)"
+	json_get_var IFNAME l3_device
+	sleep $CHECK_PERIOD
+done
+
+while true; do
+	for IP in $TESTIP
+	do
+		[ -n $IFNAME ] && {
+			/bin/ping -w5 -c1 -s8 -I $IFNAME $IP &> /dev/null
+			STATUS=$?
+		} || {
+			/bin/ping -w5 -c1 -s8 $IP &> /dev/null
+			STATUS=$?
+		}
+
+		if [[ "${STATUS}" -eq "0" ]]; then
+			let host_up_count++
+		else
+			logger -t pingcontrol "$INSTANCE: Ping to host $IP lost"
+			if [[ -n "$PING_LOST" ]]; then
+				logger -t pingcontrol "$INSTANCE: Execute $PING_LOST"
+				eval $PING_LOST
+			fi
+			let lost1++
+			let lost2++
+			lost_flag=1
+		fi
+	done
+
+	if [[ "$host_up_count" -gt "0" ]]; then
+		[ "${SILENT}" != "1" ] && {
+			logger -t pingcontrol "$INSTANCE: Ping OK, reset counters"
+		}
+		if [[ "$lost_flag" -eq "1" ]]; then
+			if [[ -n "$PING_RESTORED" ]]; then
+				logger -t pingcontrol "$INSTANCE: Execute $PING_RESTORED"
+				eval $PING_RESTORED
+			fi
+		else
+			if [[ -n "$PING_OK" ]]; then
+				[ "${SILENT}" != "1" ] && {
+					logger -t pingcontrol "$INSTANCE: Execute $PING_OK"
+				}
+					eval $PING_OK
+			fi
+		fi
+		host_up_count=0
+		lost1=0
+		lost2=0
+		lost_flag=0
+	fi
+
+	if [[ "$lost1" -gt "0" ]]; then
+		if [[ "$SW_BEFORE_MODRES" -ne "0" ]]; then
+			if [[ "$lost1" -ge "$SW_BEFORE_MODRES" ]]; then
+				if [[ -n "$BEFORE_IFACE_DOWN" ]]; then
+					logger -t pingcontrol "$INSTANCE: Execute $BEFORE_IFACE_DOWN"
+					eval $BEFORE_IFACE_DOWN
+				fi
+				logger -t pingcontrol "$INSTANCE: Ifup/ifdown $IFACE"
+				ubus call network.interface.$IFACE down
+				sleep 1
+				ubus call network.interface.$IFACE up
+				if [[ -n "$AFTER_IFACE_UP" ]]; then
+					logger -t pingcontrol "$INSTANCE: Execute $AFTER_IFACE_UP"
+					eval $AFTER_IFACE_UP
+				fi
+				lost1=0
+			fi
+		fi
+		if [[ "$SW_BEFORE_SYSRES" -ne "0" ]]; then
+			if [[ "$lost2" -ge "$SW_BEFORE_SYSRES" ]]; then
+				if [[ -n "$BEFORE_REBOOT" ]]; then
+					logger -t pingcontrol "$INSTANCE: Execute $BEFORE_REBOOT"
+					eval $BEFORE_REBOOT
+				fi
+				logger -t pingcontrol "$INSTANCE: Reboot now!"
+				reboot
+			fi
+		fi
+	fi
+
+	sleep $CHECK_PERIOD
+done

pingcontrol/files/pingcontrol.config

@@ -0,0 +1,8 @@
+config pingcontrol 'pingcontrol'
+        option enabled '0'
+        option check_period '30'
+        option iface 'internet'
+        option testip '8.8.8.8'
+	option ping_silent '1'
+        option sw_before_modres '3'
+        option sw_before_sysres '0'

pingcontrol/files/pingcontrol.init

@@ -0,0 +1,49 @@
+#!/bin/sh /etc/rc.common
+
+START=80
+USE_PROCD=1
+PROG=/bin/pingcontrol
+
+validate_pingcontrol_section() {
+        uci_validate_section pingcontrol pingcontrol "${1}" \
+                'enabled:bool:0' \
+                'iface:string' \
+                'check_period:uinteger' \
+                'testip:list(host)' \
+                'sw_before_modres:uinteger' \
+                'sw_before_sysres:uinteger'
+}
+
+pingcontrol_instance() {
+        local enabled iface check_period testip sw_before_modres sw_before_sysres
+
+        validate_pingcontrol_section "$1" || {
+                echo "validation failed"
+                return 1
+        }
+
+        [ "$enabled" = 0 ] && return
+
+        procd_open_instance
+        procd_set_param command "$PROG" "$1"
+
+        procd_set_param stdout 1
+        procd_set_param stderr 1
+        procd_set_param respawn
+        procd_close_instance
+}
+
+start_service() {
+        config_load 'pingcontrol'
+        config_foreach pingcontrol_instance 'pingcontrol'
+}
+
+service_triggers() {
+        procd_add_reload_trigger 'pingcontrol'
+        procd_add_validation validate_pingcontrol_section
+}
+
+reload_service() {
+        stop
+        start
+}