From d5e4a897680762663fd14993a4f2c9691675ec29 Mon Sep 17 00:00:00 2001
From: Guillaume Valadon <guillaume@valadon.net>
Date: Wed, 7 Aug 2013 10:13:46 +0200
Subject: [PATCH] Issue #600: Fragmenting long IPv6 packet produces deprecation
warnings
--HG--
branch : Issue #600
---
scapy/layers/inet6.py | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/scapy/layers/inet6.py b/scapy/layers/inet6.py
index bd2122ef..b7dcb416 100644
--- a/scapy/layers/inet6.py
+++ b/scapy/layers/inet6.py
@@ -958,10 +958,6 @@ def fragment6(pkt, fragSize):
"""
pkt = pkt.copy()
- s = str(pkt) # for instantiation to get upper layer checksum right
-
- if len(s) <= fragSize:
- return [pkt]
if not IPv6ExtHdrFragment in pkt:
# TODO : automatically add a fragment before upper Layer
@@ -969,6 +965,15 @@ def fragment6(pkt, fragSize):
# as single element of a list
return [pkt]
+ # If the payload is bigger than 65535, IPv6().post_build() will throw an exception
+ if len(str(pkt[IPv6ExtHdrFragment])) > 65535:
+ pkt[IPv6].plen = 65535
+
+ s = str(pkt) # for instantiation to get upper layer checksum right
+
+ if len(s) <= fragSize:
+ return [pkt]
+
# Fragmentable part : fake IPv6 for Fragmentable part length computation
fragPart = pkt[IPv6ExtHdrFragment].payload
tmp = str(IPv6(src="::1", dst="::1")/fragPart)
--
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