From 97496a83afa04195ad37062a2585142e2f98af15 Mon Sep 17 00:00:00 2001
From: Brad Fitzpatrick <bradfitz@tailscale.com>
Date: Fri, 22 Jan 2021 13:22:32 -0800
Subject: [PATCH] wgengine/tstun: also support DropSilently on PostFilterIn

Not a problem (yet). But should be consistent with other places that support both
types of drops.
---
 wgengine/tstun/tun.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/wgengine/tstun/tun.go b/wgengine/tstun/tun.go
index 8d73c065a..8a68f40f0 100644
--- a/wgengine/tstun/tun.go
+++ b/wgengine/tstun/tun.go
@@ -346,8 +346,8 @@ func (t *TUN) filterIn(buf []byte) filter.Response {
 	}
 
 	if t.PostFilterIn != nil {
-		if t.PostFilterIn(p, t) == filter.Drop {
-			return filter.Drop
+		if res := t.PostFilterIn(p, t); res.IsDrop() {
+			return res
 		}
 	}