Skip privacy networks (on tx sends) that don't have outgoing connections

src/cryptonote_protocol/levin_notify.cpp

@@ -741,9 +741,14 @@ namespace levin
   notify::status notify::get_status() const noexcept
   {
     if (!zone_)
-      return {false, false};
+      return {false, false, false};
 
-    return {!zone_->noise.empty(), CRYPTONOTE_NOISE_CHANNELS <= zone_->connection_count};
+    // `connection_count` is only set when `!noise.empty()`.
+    const std::size_t connection_count = zone_->connection_count;
+    bool has_outgoing = connection_count;
+    if (zone_->noise.empty())
+      has_outgoing = zone_->p2p->get_out_connections_count();
+    return {!zone_->noise.empty(), CRYPTONOTE_NOISE_CHANNELS <= connection_count, has_outgoing};
   }
 
   void notify::new_out_connection()

src/cryptonote_protocol/levin_notify.h

@@ -75,7 +75,8 @@ namespace levin
     struct status
     {
       bool has_noise;
-      bool connections_filled;
+      bool connections_filled; //!< True when has zone has `CRYPTONOTE_NOISE_CHANNELS` outgoing noise channels
+      bool has_outgoing; //!< True when zone has outgoing connections
     };
 
     //! Construct an instance that cannot notify.

src/p2p/net_node.inl

@@ -2300,11 +2300,12 @@ namespace nodetool
       if (enet::zone::tor < network->first)
         break; // unknown network
 
-      if (network->second.m_connect)
+      const auto status = network->second.m_notifier.get_status();
+      if (network->second.m_connect && status.has_outgoing)
         return send(*network);
     }
 
-    // configuration should not allow this scenario
+    MWARNING("Unable to send " << txs.size() << " transaction(s): anonymity networks had no outgoing connections");
     return enet::zone::invalid;
   }
   //-----------------------------------------------------------------------------------