wg-installer: add hotplug script for olsr

Add hotplug-olsrd to automatically mesh with olsrd via new wireguard
links.

Signed-off-by: Nick Hainke <vincent@systemli.org>

net/wg-installer/Makefile

@@ -62,6 +62,16 @@ define Package/wg-installer-server-hotplug-babeld/install
 	$(INSTALL_BIN) ./wg-server/hotplug.d/99-mesh-babeld $(1)/etc/hotplug.d/net/99-mesh-babeld
 endef
 
+define Package/wg-installer-server-hotplug-olsrd
+	$(call Package/wg-installer-server)
+	DEPENDS:=wg-installer-server
+endef
+
+define Package/wg-installer-server-hotplug-olsrd/install
+	$(INSTALL_DIR) $(1)/etc/hotplug.d/net/
+	$(INSTALL_BIN) ./wg-server/hotplug.d/99-mesh-olsrd $(1)/etc/hotplug.d/net/99-mesh-olsrd
+endef
+
 define Package/wg-installer-client
 	$(call Package/wg-installer/Default)
 	TITLE+= (client)
@@ -86,4 +96,5 @@ endef
 
 $(eval $(call BuildPackage,wg-installer-server))
 $(eval $(call BuildPackage,wg-installer-server-hotplug-babeld))
+$(eval $(call BuildPackage,wg-installer-server-hotplug-olsrd))
 $(eval $(call BuildPackage,wg-installer-client))

net/wg-installer/wg-server/hotplug.d/99-mesh-olsrd

@@ -0,0 +1,33 @@
+#!/bin/sh
+
+# check if wireguard
+if [ "${DEVTYPE}" != "wireguard" ]; then
+	exit 0
+fi
+
+# check if correct naming
+slicedint=$(echo $INTERFACE | cut -c1-3)
+if [ "${slicedint}" != "wg_" ]; then
+	exit 0
+fi
+
+if [ "${ACTION}" == "add" ]; then
+	uci add olsrd Interface
+	uci set olsrd.@Interface[-1].ignore=0
+	uci set olsrd.@Interface[-1].interface="${INTERFACE}"
+	uci set olsrd.@Interface[-1].Mode="ether"
+	uci commit
+	/etc/init.d/olsrd reload
+fi
+
+if [ "${ACTION}" == "remove" ]; then
+	i=0
+	while uci get olsrd.@Interface[$i] &> /dev/null ; do
+		if [ "$(uci get olsrd.@Interface[$i].interface)" == "${INTERFACE}" ]; then
+			uci delete olsrd.@Interface[$i]
+		fi
+		i=$((i+1));
+	done
+	uci commit
+	/etc/init.d/olsrd reload
+fi