From 8ee4cad421931c7c63a37962036130fc892191cc Mon Sep 17 00:00:00 2001
From: evilsocket <evilsocket@gmail.com>
Date: Tue, 20 Feb 2018 04:04:29 +0100
Subject: [PATCH] fix: ignoring broadcast macs on osx

---
 network/lan.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/network/lan.go b/network/lan.go
index 92a06de0..a58dac7d 100644
--- a/network/lan.go
+++ b/network/lan.go
@@ -140,7 +140,7 @@ func (lan *LAN) Remove(ip, mac string) {
 	}
 }
 
-func (lan *LAN) shouldIgnore(ip string) bool {
+func (lan *LAN) shouldIgnore(ip, mac string) bool {
 	// skip our own address
 	if ip == lan.Interface.IpAddress {
 		return true
@@ -153,6 +153,10 @@ func (lan *LAN) shouldIgnore(ip string) bool {
 	if strings.HasSuffix(ip, ".255") {
 		return true
 	}
+	// skip broadcast macs
+	if strings.ToLower(mac) == "ff:ff:ff:ff:ff:ff" {
+		return true
+	}
 	// skip everything which is not in our subnet (multicast noise)
 	addr := net.ParseIP(ip)
 	return lan.Interface.Net.Contains(addr) == false
@@ -188,7 +192,7 @@ func (lan *LAN) AddIfNew(ip, mac string) *Endpoint {
 	lan.Lock()
 	defer lan.Unlock()
 
-	if lan.shouldIgnore(ip) {
+	if lan.shouldIgnore(ip, mac) {
 		return nil
 	}