From d2fa2a220205ec046f14137d9796614b8b8cd40b Mon Sep 17 00:00:00 2001
From: GRMrGecko <grmrgecko@gmail.com>
Date: Wed, 8 Jan 2025 11:53:51 -0600
Subject: [PATCH] Add retry in process to the promiscuous listener due to
 failure during boot.

---
 main.go                |  2 +-
 promiscuous_windows.go | 21 ++++++++++++++++++++-
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/main.go b/main.go
index a9f93b4..c77b249 100644
--- a/main.go
+++ b/main.go
@@ -6,7 +6,7 @@ const (
 	serviceDisplayName = "Virtual VXLAN"
 	serviceVendor      = "com.mrgeckosmedia"
 	serviceDescription = "Virtual VXLAN using TUN interfaces"
-	serviceVersion     = "0.1.7"
+	serviceVersion     = "0.1.8"
 	defaultConfigFile  = "config.yaml"
 )
 
diff --git a/promiscuous_windows.go b/promiscuous_windows.go
index 6bf7344..f64135d 100644
--- a/promiscuous_windows.go
+++ b/promiscuous_windows.go
@@ -7,6 +7,7 @@ import (
 	"net"
 	"strings"
 	"syscall"
+	"time"
 	"unsafe"
 
 	"github.com/google/gopacket/pcap"
@@ -121,7 +122,25 @@ func (p *Promiscuous) tryICMPListen(ifaceIP net.IP) (err error) {
 	}
 
 	// Use listen packet to start a connection.
-	p.conn, err = cfg.ListenPacket(context.Background(), network, ifaceIP.String())
+	tries := 0
+	for {
+		p.conn, err = cfg.ListenPacket(context.Background(), network, ifaceIP.String())
+		if err == nil {
+			break
+		}
+
+		// If the bind address wasn't found on an interface, try again for 5 minutes.
+		tries++
+		if tries < 5 {
+			log.Printf("Error putting interface in promiscuous mode, trying again: %v", err)
+			time.Sleep(time.Minute)
+		} else {
+			// If we passed 5 minutes, we should stop...
+			break
+		}
+	}
+
+	// If we failed too many times, stop.
 	if err != nil {
 		return
 	}