From 5a00252a73304de399cacbebcd03bb756cbd6c05 Mon Sep 17 00:00:00 2001
From: HardenedSteel <19209715+HardenedSteel@users.noreply.github.com>
Date: Sat, 13 Dec 2025 07:22:00 +0300
Subject: [PATCH] fix: dont set as firewalled if full-cone

full-cone NATs can function normally if we map the ports
---
 libi2pd/SSU2Session.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libi2pd/SSU2Session.cpp b/libi2pd/SSU2Session.cpp
index c8086270..5edf8bea 100644
--- a/libi2pd/SSU2Session.cpp
+++ b/libi2pd/SSU2Session.cpp
@@ -2444,7 +2444,9 @@ namespace transport
 												session->SendPeerTest (6, buf + offset, len - offset, addr, true);
 											}	
 											SetTestingState (false);
-											if (GetRouterStatus () != eRouterStatusFirewalled && addr->IsPeerTesting ())
+											if (i2p::context.GetError () == eRouterErrorFullConeNAT)
+												SetRouterStatus (eRouterStatusOK);
+											else if (GetRouterStatus () != eRouterStatusFirewalled && addr->IsPeerTesting ())
 											{
 												SetRouterStatus (eRouterStatusFirewalled);
 												session->SetStatusChanged ();