From 0253e2d3f648653361d5028cd1782ac309608ea3 Mon Sep 17 00:00:00 2001
From: orignal <i2porignal@yandex.ru>
Date: Tue, 21 Jun 2022 09:51:49 -0400
Subject: [PATCH] different nonce location for PeerTest msg 2 and 4

---
 libi2pd/SSU2Session.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libi2pd/SSU2Session.cpp b/libi2pd/SSU2Session.cpp
index 97e2d95f..84d27b36 100644
--- a/libi2pd/SSU2Session.cpp
+++ b/libi2pd/SSU2Session.cpp
@@ -1413,7 +1413,7 @@ namespace transport
 
 	void SSU2Session::HandlePeerTest (const uint8_t * buf, size_t len)
 	{
-		uint32_t nonce = bufbe32toh (buf + 36);
+		uint32_t nonce = bufbe32toh ((buf[0] == 2 || buf[0] == 4) ? buf + 36 : buf + 4); // hash is presented for msg 2 and 4 only
 		switch (buf[0]) // msg
 		{
 			case 1: // Bob from Alice