From c7b7b1247b27e08f26ec403f959748564b87b0cb Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Sat, 8 Jun 2019 22:35:09 +0200
Subject: TunnelProvider: store the entire NWPath

Otherwise [utun0, en0] == [en0, utun0] before WiFi has connected, and we
wind up not rebinding after WiFi does successfully connect, which means
people have trouble when resuming from sleep.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---
 WireGuard/WireGuardNetworkExtension/PacketTunnelProvider.swift | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/WireGuard/WireGuardNetworkExtension/PacketTunnelProvider.swift b/WireGuard/WireGuardNetworkExtension/PacketTunnelProvider.swift
index 0618b19..2ecd610 100644
--- a/WireGuard/WireGuardNetworkExtension/PacketTunnelProvider.swift
+++ b/WireGuard/WireGuardNetworkExtension/PacketTunnelProvider.swift
@@ -11,7 +11,7 @@ class PacketTunnelProvider: NEPacketTunnelProvider {
     private var handle: Int32?
     private var networkMonitor: NWPathMonitor?
     private var ifname: String?
-    private var lastSeenInterfaces: [String] = []
+    private var lastPath: Network.NWPath?
     private var packetTunnelSettingsGenerator: PacketTunnelSettingsGenerator?
 
     deinit {
@@ -143,18 +143,15 @@ class PacketTunnelProvider: NEPacketTunnelProvider {
 
     private func pathUpdate(path: Network.NWPath) {
         guard let handle = handle else { return }
-        guard let ifname = ifname else { return }
         wg_log(.debug, message: "Network change detected with \(path.status) route and interface order \(path.availableInterfaces)")
-        guard path.status == .satisfied else { return }
 
         #if os(iOS)
         if let packetTunnelSettingsGenerator = packetTunnelSettingsGenerator {
             _ = packetTunnelSettingsGenerator.endpointUapiConfiguration().withGoString { return wgSetConfig(handle, $0) }
         }
         #endif
-        let interfaces = path.availableInterfaces.filter { $0.name != ifname }.compactMap { $0.name }
-        if !interfaces.elementsEqual(lastSeenInterfaces) {
-            lastSeenInterfaces = interfaces
+        if path != lastPath {
+            lastPath = path
             wgBumpSockets(handle)
         }
     }
-- 
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