From b855c7189111a30ed5acdffe8d2d584c35b2fc61 Mon Sep 17 00:00:00 2001
From: orignal <i2porignal@yandex.ru>
Date: Sun, 31 Dec 2023 14:39:59 -0500
Subject: [PATCH] don't adjust clock if time offsets are too different

---
 libi2pd/SSU2.cpp | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/libi2pd/SSU2.cpp b/libi2pd/SSU2.cpp
index 55eb0567..6a8615d5 100644
--- a/libi2pd/SSU2.cpp
+++ b/libi2pd/SSU2.cpp
@@ -216,9 +216,14 @@ namespace transport
 		{	
 			if (m_PendingTimeOffset) // one more
 			{	
-				offset = (m_PendingTimeOffset + offset)/2; // average
-				LogPrint (eLogWarning, "SSU2: Clock adjusted by ", offset, " seconds");
-				i2p::util::AdjustTimeOffset (offset);
+				if (std::abs (m_PendingTimeOffset - offset) < SSU2_CLOCK_SKEW)
+				{	
+					offset = (m_PendingTimeOffset + offset)/2; // average
+					LogPrint (eLogWarning, "SSU2: Clock adjusted by ", offset, " seconds");
+					i2p::util::AdjustTimeOffset (offset);
+				}	
+				else
+					LogPrint (eLogWarning, "SSU2: Time offsets are too different. Clock not adjusted");
 				m_PendingTimeOffset = 0;
 			}
 			else