From 41bf4c7376fde7847e0fca5aeae6d1e510febdca Mon Sep 17 00:00:00 2001
From: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Date: Wed, 7 Oct 2020 08:20:05 +0100
Subject: [PATCH] Copy metadata when making a packet copy

Copy was copying only data, losing all metadata in the process.

This resulted in very erratic behaviour of Replicate in a pipeline
which relies on metadata to identify packets.
---
 core/packet.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/core/packet.cc b/core/packet.cc
index a3656b524..a56f85bb1 100644
--- a/core/packet.cc
+++ b/core/packet.cc
@@ -58,7 +58,9 @@ Packet *Packet::copy(const Packet *src) {
 
   bess::utils::CopyInlined(dst->append(src->total_len()), src->head_data(),
                            src->total_len(), true);
-
+  bess::utils::CopyInlined(&dst->metadata_, &src->metadata_,
+                           SNBUF_METADATA, true);
+  
   return dst;
 }