relayd: fix reload / interface restart issues

- replace the hotplug script with an interface trigger
- add netdev params to procd to trigger restart

Signed-off-by: Felix Fietkau <nbd@nbd.name>

package/network/services/relayd/Makefile

@@ -35,8 +35,6 @@ TARGET_CFLAGS += -I$(STAGING_DIR)/usr/include
 define Package/relayd/install
 	$(INSTALL_DIR) $(1)/usr/sbin
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/relayd $(1)/usr/sbin/relayd
-	$(INSTALL_DIR) $(1)/etc/hotplug.d/iface
-	$(INSTALL_DATA) ./files/relay.hotplug $(1)/etc/hotplug.d/iface/30-relay
 	$(INSTALL_DIR) $(1)/etc/init.d
 	$(INSTALL_BIN) ./files/relay.init $(1)/etc/init.d/relayd
 endef

package/network/services/relayd/files/relay.hotplug

@@ -1,2 +0,0 @@
-#!/bin/sh
-/etc/init.d/relayd enabled && /etc/init.d/relayd start

package/network/services/relayd/files/relay.init

@@ -20,6 +20,7 @@ validate_proto_relayd()
 resolve_ifname() {
 	grep -qs "^ *$1:" /proc/net/dev && {
 		procd_append_param command -I "$1"
+		procd_append_param netdev "$1"
 		append ifaces "$1"
 	}
 }
@@ -106,6 +107,7 @@ start_relay() {
 service_triggers()
 {
 	procd_add_reload_trigger "network"
+	procd_add_raw_trigger "interface.*" 2000 /etc/init.d/relayd reload
 }
 
 start_service() {