From dc4cd34893b1332c76c2c90136bc0debcd608ede Mon Sep 17 00:00:00 2001
From: orignal <i2porignal@yandex.ru>
Date: Wed, 2 Oct 2024 08:45:44 -0400
Subject: [PATCH] handle immediate ack requsted flag in data message. set it in
 keep-alive

---
 libi2pd/SSU2Session.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libi2pd/SSU2Session.cpp b/libi2pd/SSU2Session.cpp
index 950ed2af..d8171174 100644
--- a/libi2pd/SSU2Session.cpp
+++ b/libi2pd/SSU2Session.cpp
@@ -268,7 +268,7 @@ namespace transport
 		{
 			uint8_t payload[20];
 			size_t payloadSize = CreatePaddingBlock (payload, 20, 8);
-			SendData (payload, payloadSize);
+			SendData (payload, payloadSize, SSU2_FLAG_IMMEDIATE_ACK_REQUESTED);
 		}
 	}
 
@@ -1503,6 +1503,7 @@ namespace transport
 			return;
 		}
 		UpdateNumReceivedBytes (len);
+		if (header.h.flags[0] & SSU2_FLAG_IMMEDIATE_ACK_REQUESTED) m_IsDataReceived = true;
 		if (!packetNum || UpdateReceivePacketNum (packetNum))
 			HandlePayload (payload, payloadSize);
 	}