From b05ee8a463ff8f49af8b2e3c7c58b26b8e792eae Mon Sep 17 00:00:00 2001
From: Mikael Magnusson <mikma@users.sourceforge.net>
Date: Fri, 3 Mar 2023 00:39:07 +0100
Subject: WIP: add dhcp addresses to tunnel details

---
 .../com/wireguard/android/backend/GoBackend.java   | 31 +++++++++++++++-------
 1 file changed, 21 insertions(+), 10 deletions(-)

(limited to 'tunnel/src/main/java/com/wireguard/android/backend/GoBackend.java')

diff --git a/tunnel/src/main/java/com/wireguard/android/backend/GoBackend.java b/tunnel/src/main/java/com/wireguard/android/backend/GoBackend.java
index 1d900db0..1d76b02d 100644
--- a/tunnel/src/main/java/com/wireguard/android/backend/GoBackend.java
+++ b/tunnel/src/main/java/com/wireguard/android/backend/GoBackend.java
@@ -77,6 +77,7 @@ import java.net.UnknownHostException;
 import java.net.URL;
 import java.nio.ByteOrder;
 import java.util.Collections;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Optional;
 import java.util.Set;
@@ -401,8 +402,23 @@ public final class GoBackend implements Backend {
         DhcpResponse resp = stub.dhcp(request);
         Log.i(TAG, "Dhcp: " + resp.getError().getMessage());
 
+        Set<InetNetwork> addresses = new LinkedHashSet<>();
+        if (resp.getLeasesList() != null) {
+            for (final Lease lease: resp.getLeasesList()) {
+                try {
+                    InetAddress addr = InetAddress.getByAddress(lease.getAddress().getAddress().toByteArray());
+                    Log.i(TAG, "Lease: " + addr);
+                    addresses.add(new InetNetwork(addr, 128));
+                } catch (UnknownHostException ex) {
+                    // Ignore
+                }
+            }
+        }
+
+        Dhcp dhcp = new Dhcp(addresses);
+
         // Replace the vpn tunnel
-        final VpnService.Builder builder = getBuilder(currentTunnel.getName(), currentConfig, service, resp.getLeasesList());
+        final VpnService.Builder builder = getBuilder(currentTunnel.getName(), currentConfig, service, dhcp.getAddresses());
 
         Log.i(TAG, "Builder: " + builder);
 
@@ -419,6 +435,7 @@ public final class GoBackend implements Backend {
         service.protect(wgGetSocketV4(currentTunnelHandle));
         service.protect(wgGetSocketV6(currentTunnelHandle));
         Log.i(TAG, "Dhcp done");
+        currentTunnel.onDhcpChange(dhcp);
     }
 
     private int getConnectionOwnerUid(int protocol, InetSocketAddress local, InetSocketAddress remote) {
@@ -503,7 +520,7 @@ public final class GoBackend implements Backend {
         Log.i(TAG, "Exit streamReverse");
     }
 
-    private VpnService.Builder getBuilder(final String name, @Nullable final Config config, final VpnService service, @Nullable final List<Lease> leases) throws PackageManager.NameNotFoundException {
+    private VpnService.Builder getBuilder(final String name, @Nullable final Config config, final VpnService service, @Nullable final Set<InetNetwork> leases) throws PackageManager.NameNotFoundException {
         Log.i(TAG, "Builder 1");
             final VpnService.Builder builder = service.getBuilder();
         Log.i(TAG, "Builder 2");
@@ -519,14 +536,8 @@ public final class GoBackend implements Backend {
 
         Log.i(TAG, "Builder 5");
             if (leases != null) {
-                for (final Lease lease: leases) {
-                    try {
-                        InetAddress addr = InetAddress.getByAddress(lease.getAddress().getAddress().toByteArray());
-                        Log.i(TAG, "Lease: " + addr);
-                        builder.addAddress(addr, 128);
-                    } catch (UnknownHostException ex) {
-                        // Ignore
-                    }
+                for (final InetNetwork lease: leases) {
+                    builder.addAddress(lease.getAddress(), lease.getMask());
                 }
             }
 
-- 
cgit v1.2.3