add upstream dns to default hidden service

include/llarp/service/context.hpp

@@ -72,7 +72,9 @@ namespace llarp
                     llarp::Addr &localPrivateIpAddr);
 
       bool
-      AddDefaultEndpoint(const std::string &ifaddr, const std::string &ifname);
+      AddDefaultEndpoint(const std::string &ifaddr, const std::string &ifname,
+                         const std::string &remoteResovler,
+                         const std::string &localResolver);
 
       bool
       AddEndpoint(const Config::section_t &conf, bool autostart = false);

llarp/router.cpp

@@ -968,7 +968,14 @@ llarp_router::InitOutboundLink()
 bool
 llarp_router::CreateDefaultHiddenService()
 {
-  return hiddenServiceContext.AddDefaultEndpoint(defaultIfAddr, defaultIfName);
+  if(upstreamResolvers.size())
+    return hiddenServiceContext.AddDefaultEndpoint(defaultIfAddr, defaultIfName,
+                                                   upstreamResolvers.front(),
+                                                   resolverBindAddr);
+  else
+    return hiddenServiceContext.AddDefaultEndpoint(defaultIfAddr, defaultIfName,
+                                                   defaultUpstreamResolver,
+                                                   resolverBindAddr);
 }
 
 bool

llarp/router.hpp

@@ -139,6 +139,8 @@ struct llarp_router
   std::unordered_map< llarp::RouterID, llarp_time_t, llarp::RouterID::Hash >
       m_PersistingSessions;
 
+  // TODO: change me if needed
+  const std::string defaultUpstreamResolver = "1.1.1.1:53";
   std::list< std::string > upstreamResolvers;
   std::string resolverBindAddr = "127.0.0.1:53";
 

llarp/service/context.cpp

@@ -209,12 +209,17 @@ namespace llarp
 
     bool
     Context::AddDefaultEndpoint(const std::string &ifaddr,
-                                const std::string &ifname)
+                                const std::string &ifname,
+                                const std::string &remoteResolver,
+                                const std::string &localResolver)
     {
-      return AddEndpoint(
-          {"default",
-           {{"type", "tun"}, {"ifaddr", ifaddr}, {"ifname", ifname}}},
-          true);
+      return AddEndpoint({"default",
+                          {{"type", "tun"},
+                           {"ifaddr", ifaddr},
+                           {"ifname", ifname},
+                           {"local-dns", localResolver},
+                           {"upstream-dns", remoteResolver}}},
+                         true);
     }
 
     bool