From c621ec0c5063555673f35636c0e4e4f82b3929c8 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Fri, 24 Jan 2020 15:36:27 +0100
Subject: [PATCH] GoBackend: restrict APIs to proper version

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---
 .../main/java/com/wireguard/android/backend/GoBackend.java  | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/app/src/main/java/com/wireguard/android/backend/GoBackend.java b/app/src/main/java/com/wireguard/android/backend/GoBackend.java
index cc4684cb..ad45c933 100644
--- a/app/src/main/java/com/wireguard/android/backend/GoBackend.java
+++ b/app/src/main/java/com/wireguard/android/backend/GoBackend.java
@@ -213,9 +213,10 @@ public final class GoBackend implements Backend {
 
             builder.setMtu(config.getInterface().getMtu().orElse(1280));
 
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q)
                 builder.setMetered(false);
-            }
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
+	        service.setUnderlyingNetworks(null);
 
             builder.setBlocking(true);
             try (final ParcelFileDescriptor tun = builder.establish()) {
@@ -229,7 +230,6 @@ public final class GoBackend implements Backend {
 
             currentTunnel = tunnel;
 
-            service.setUnderlyingNetworks(null);
             service.protect(wgGetSocketV4(currentTunnelHandle));
             service.protect(wgGetSocketV6(currentTunnelHandle));
         } else {