Restore excludeRoute

Signed-off-by: Pawloland <59684145+Pawloland@users.noreply.github.com>

Author: Pawloland

android/src/main/java/com/tailscale/ipn/VPNServiceBuilder.kt

@@ -22,6 +22,15 @@ class VPNServiceBuilder(private val builder: VpnService.Builder) : libtailscale.
     builder.addRoute(p0, p1)
   }
 
+  override fun excludeRoute(p0: String, p1: Int) {
+    // Only run this for API level 33 and up
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+      val inetAddress = InetAddress.getByName(p0)
+      val prefix = AndroidIpPrefix(inetAddress, p1)
+      builder.excludeRoute(prefix)
+    }
+  }
+
   override fun addSearchDomain(p0: String) {
     builder.addSearchDomain(p0)
   }

libtailscale/interfaces.go

@@ -104,6 +104,7 @@ type VPNServiceBuilder interface {
 	AddDNSServer(string) error
 	AddSearchDomain(string) error
 	AddRoute(string, int32) error
+	ExcludeRoute(string, int32) error
 	AddAddress(string, int32) error
 	Establish() (ParcelFileDescriptor, error)
 }