set up accept any plainquic handlers

llarp/handlers/exit.cpp

@@ -756,7 +756,12 @@ namespace llarp
         m_ifname = *maybe;
       }
       LogInfo(Name(), " set ifname to ", m_ifname);
-
+      if (auto* quic = GetQUICTunnel())
+      {
+        quic->listen([ifaddr = net::TruncateV6(m_IfAddr)](std::string_view, uint16_t port) {
+          return llarp::SockAddr{ifaddr, huint16_t{port}};
+        });
+      }
       // TODO: "exit-whitelist" and "exit-blacklist"
       //       (which weren't originally implemented)
     }

llarp/handlers/tun.cpp

@@ -194,6 +194,14 @@ namespace llarp
 
       m_OurIP = m_OurRange.addr;
       m_UseV6 = false;
+
+      if (auto* quic = GetQUICTunnel())
+      {
+        quic->listen([this](std::string_view, uint16_t port) {
+          return llarp::SockAddr{net::TruncateV6(GetIfAddr()), huint16_t{port}};
+        });
+      }
+
       return Endpoint::Configure(conf, dnsConf);
     }
 

llarp/net/sock_addr.cpp

@@ -53,6 +53,9 @@ namespace llarp
     setPort(port);
   }
 
+  SockAddr::SockAddr(huint32_t ip, huint16_t port) : SockAddr{ToNet(ip), ToNet(port)}
+  {}
+
   SockAddr::SockAddr(huint128_t ip, huint16_t port)
   {
     init();