39 lines
1.3 KiB
Plaintext
39 lines
1.3 KiB
Plaintext
$OpenBSD: patch-scapy_layers_loop_py,v 1.1 2012/01/12 03:16:24 bluhm Exp $
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Add layer for sniffing on OpenBSD loopback device.
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http://trac.secdev.org/scapy/ticket/485
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--- scapy/layers/loop.py.orig Wed Jan 11 23:58:04 2012
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+++ scapy/layers/loop.py Thu Jan 12 00:12:21 2012
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@@ -0,0 +1,31 @@
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+## This file is part of Scapy
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+## See http://www.secdev.org/projects/scapy for more informations
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+## Copyright (C) Alexander Bluhm <alexander.bluhm@gmx.net>
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+## Copyright (C) Philippe Biondi <phil@secdev.org>
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+## This program is published under a GPLv2 license
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+
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+import scapy.arch
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+from scapy.packet import *
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+from scapy.fields import *
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+from scapy.layers.inet import IP
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+if conf.ipv6_enabled:
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+ from scapy.layers.inet6 import IPv6
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+from scapy.config import conf
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+
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+class Loop(Packet):
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+ name = "Loop"
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+ # from OpenBSD src/sys/net/if_loop.c
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+ fields_desc = [ IntEnumField("addrfamily", 2, { socket.AF_INET: "IPv4",
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+ socket.AF_INET6: "IPv6" }),
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+ ]
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+ def mysummary(self):
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+ return self.sprintf("%Loop.addrfamily%")
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+
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+bind_layers(Loop, IP, addrfamily=socket.AF_INET)
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+if conf.ipv6_enabled:
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+ bind_layers(Loop, IPv6, addrfamily=socket.AF_INET6)
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+
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+if scapy.arch.OPENBSD:
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+ conf.l2types.register(12, Loop)
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+else:
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+ conf.l2types.register(108, Loop)
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