From 0a207d017005af90017e36223daa1e0aeaeb25b4 Mon Sep 17 00:00:00 2001
From: Martin Geno <geno+dev@fireorbit.de>
Date: Wed, 5 Jul 2017 15:51:06 +0200
Subject: [PATCH] [TASk] put multicast address in config file

---
 cmd/yanic/main.go    | 5 ++++-
 respond/collector.go | 2 +-
 respond/respond.go   | 5 +++--
 runtime/config.go    | 3 ++-
 4 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/cmd/yanic/main.go b/cmd/yanic/main.go
index 5f1339a..214087f 100644
--- a/cmd/yanic/main.go
+++ b/cmd/yanic/main.go
@@ -49,6 +49,9 @@ func main() {
 	if config.Respondd.InterfaceSendMulticast == "" {
 		config.Respondd.InterfaceSendMulticast = config.Respondd.InterfaceListen
 	}
+	if config.Respondd.MulticastDestination != "" {
+		respond.MulticastGroup = config.Respondd.MulticastDestination
+	}
 
 	connections, err = allDB.Connect(config.Database.Connection)
 	if err != nil {
@@ -88,7 +91,7 @@ func main() {
 			time.Sleep(delay)
 		}
 
-		collector = respond.NewCollector(connections, nodes, config.Respondd.InterfaceListen, config.Respondd.InterfaceSendMulticast, config.Respondd.InterfaceSendUnicast, config.Respondd.Port)
+		collector = respond.NewCollector(connections, nodes, config.Respondd.InterfaceListen, config.Respondd.InterfaceSendMulticast, config.Respondd.InterfaceSendUnicast, config.Respondd.ListenPort)
 		collector.Start(config.Respondd.CollectInterval.Duration)
 		defer collector.Close()
 	}
diff --git a/respond/collector.go b/respond/collector.go
index 46c807e..88086d9 100644
--- a/respond/collector.go
+++ b/respond/collector.go
@@ -120,7 +120,7 @@ func (coll *Collector) sendOnce() {
 func (coll *Collector) sendMulticast() {
 	log.Println("sending multicast")
 	coll.SendPacket(net.UDPAddr{
-		IP:   net.ParseIP(multiCastGroup),
+		IP:   net.ParseIP(MulticastGroup),
 		Zone: coll.ifaceSendMulticast,
 	})
 }
diff --git a/respond/respond.go b/respond/respond.go
index a7987b8..a6f1ad4 100644
--- a/respond/respond.go
+++ b/respond/respond.go
@@ -4,9 +4,10 @@ import (
 	"net"
 )
 
+// default multicast group used by announced
+var MulticastGroup string = "ff02:0:0:0:0:0:2:1001"
+
 const (
-	// default multicast group used by announced
-	multiCastGroup = "ff02:0:0:0:0:0:2:1001"
 
 	// default udp port used by announced
 	port = 1001
diff --git a/runtime/config.go b/runtime/config.go
index 66382a4..854edba 100644
--- a/runtime/config.go
+++ b/runtime/config.go
@@ -14,7 +14,8 @@ type Config struct {
 		InterfaceListen        string   `toml:"interface"`
 		InterfaceSendMulticast string   `toml:"interface_send_multicast"`
 		InterfaceSendUnicast   string   `toml:"interface_send_unicast"`
-		Port                   int      `toml:"port"`
+		ListenPort             int      `toml:"port"`
+		MulticastDestination   string   `toml:"destination"`
 		CollectInterval        Duration `toml:"collect_interval"`
 	}
 	Webserver struct {