From 6680976b502c8e1b733eac1591c53257effcc3a5 Mon Sep 17 00:00:00 2001
From: Brad Fitzpatrick <bradfitz@tailscale.com>
Date: Thu, 11 Feb 2021 20:10:07 -0800
Subject: [PATCH] cmd/tailscaled: pick automatic tun device name on darwin

---
 cmd/tailscaled/tailscaled.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cmd/tailscaled/tailscaled.go b/cmd/tailscaled/tailscaled.go
index 64e2723bb..4ad437c22 100644
--- a/cmd/tailscaled/tailscaled.go
+++ b/cmd/tailscaled/tailscaled.go
@@ -52,6 +52,10 @@ func defaultTunName() string {
 		return "tun"
 	case "windows":
 		return "Tailscale"
+	case "darwin":
+		// "utun" is recognized by wireguard-go/tun/tun_darwin.go
+		// as a magic value that uses/creates any free number.
+		return "utun"
 	}
 	return "tailscale0"
 }