From 662866ca40c8a80a91ae56af2c0c94fe1f37cbe1 Mon Sep 17 00:00:00 2001
From: Phil <phil@secdev.org>
Date: Fri, 22 Feb 2008 00:47:17 +0100
Subject: [PATCH] Added L2TP header
---
scapy.py | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/scapy.py b/scapy.py
index 8bd1ffbc..205c664a 100755
--- a/scapy.py
+++ b/scapy.py
@@ -6726,6 +6726,22 @@ class _IPv6OptionHeader(Packet):
return "<IPv6: ERROR not implemented>"
+class L2TP(Packet):
+ fields_desc = [ ShortEnumField("pkt_type",2,{2:"data"}),
+ ShortField("len", None),
+ ShortField("tunnel_id", 0),
+ ShortField("session_id", 0),
+ ShortField("ns", 0),
+ ShortField("nr", 0),
+ ShortField("offset", 0) ]
+
+ def post_build(self, pkt, pay):
+ if self.len is None:
+ l = len(pkt)+len(pay)
+ pkt = pkt[:2]+struct.pack("!H", l)+pkt[4:]
+ return pkt+pay
+
+
_PPP_proto = { 0x0001: "Padding Protocol",
0x0003: "ROHC small-CID [RFC3095]",
0x0005: "ROHC large-CID [RFC3095]",
--
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