Add trace debugging of inbound packet type

llarp/handlers/null.hpp

@@ -47,6 +47,7 @@ namespace llarp
           service::ProtocolType t,
           uint64_t seqno) override
       {
+        LogTrace("Inbound ", t, " packet (", buf.sz, "B) on convo ", tag);
         if (t == service::ProtocolType::Control)
         {
           MarkConvoTagActive(tag);

llarp/handlers/tun.cpp

@@ -984,6 +984,7 @@ namespace llarp
         service::ProtocolType t,
         uint64_t seqno)
     {
+      LogTrace("Inbound ", t, " packet (", buf.sz, "B) on convo ", tag);
       if (t == service::ProtocolType::QUIC)
       {
         auto* quic = GetQUICTunnel();

llarp/service/protocol.cpp

@@ -12,6 +12,17 @@ namespace llarp
 {
   namespace service
   {
+    std::ostream& operator<<(std::ostream& o, ProtocolType t) {
+      return o <<
+        (t == ProtocolType::Control ? "Control" :
+         t == ProtocolType::TrafficV4 ? "TrafficV4" :
+         t == ProtocolType::TrafficV6 ? "TrafficV6" :
+         t == ProtocolType::Exit ? "Exit" :
+         t == ProtocolType::Auth ? "Auth" :
+         t == ProtocolType::QUIC ? "QUIC" :
+         "(unknown-protocol-type)");
+    }
+
     ProtocolMessage::ProtocolMessage()
     {
       tag.Zero();

llarp/service/protocol.hpp

@@ -31,6 +31,8 @@ namespace llarp
 
     constexpr std::size_t MAX_PROTOCOL_MESSAGE_SIZE = 2048 * 2;
 
+    std::ostream& operator<<(std::ostream& o, ProtocolType t);
+
     /// inner message
     struct ProtocolMessage
     {