From 7c588a03d014cb648ef49a9bd7b4b3e71c4ede10 Mon Sep 17 00:00:00 2001
From: Fynn Schulze <fschulze@ibr.cs.tu-bs.de>
Date: Wed, 15 Nov 2023 16:10:29 +0100
Subject: [PATCH] updated packet size calculation

---
 tools/socktap/tcp_link.cpp | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/tools/socktap/tcp_link.cpp b/tools/socktap/tcp_link.cpp
index 81ecc9ace..2323795a8 100644
--- a/tools/socktap/tcp_link.cpp
+++ b/tools/socktap/tcp_link.cpp
@@ -30,10 +30,7 @@ void TcpLink::request(const access::DataRequest& request, std::unique_ptr<ChunkP
     vanetza::ByteBuffer buffer = create_ethernet_header(request.destination_addr, request.source_addr, request.ether_type);
 
     // insert packet size before ethernet header
-    uint16_t packet_size = packet->size() + EthernetHeader::length_bytes;
-    if (packet->layer(OsiLayer::Link).size() != 0) {
-        packet_size -= packet->layer(OsiLayer::Link).size();
-    }
+    uint16_t packet_size = packet->size(OsiLayer::Network, OsiLayer::Application) + EthernetHeader::length_bytes;
     buffer.insert(buffer.begin(), packet_size & 0x00FF);
     buffer.insert(buffer.begin(), (packet_size & 0xFF00) >> 8);