From 372cc6a45dfa8714e83400fcada97b4835852873 Mon Sep 17 00:00:00 2001
From: ValdikSS <iam@valdikss.org.ru>
Date: Wed, 29 Dec 2021 16:09:47 +0300
Subject: [PATCH] Properly handle Native Fragmentation packet of bigger or
 equal size than the fragment size

---
 src/goodbyedpi.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/goodbyedpi.c b/src/goodbyedpi.c
index 9a51bb0..87870de 100644
--- a/src/goodbyedpi.c
+++ b/src/goodbyedpi.c
@@ -458,6 +458,13 @@ static void send_native_fragment(HANDLE w_filter, WINDIVERT_ADDRESS addr,
     memcpy(&packet_bak, packet, packetLen);
     UINT orig_packetLen = packetLen;
 
+    if (fragment_size >= packet_dataLen) {
+        if (step == 1)
+            fragment_size = 0;
+        else
+            return;
+    }
+
     if (step == 0) {
         if (packet_v4)
             ppIpHdr->Length = htons(