67 lines
2.3 KiB
Ruby
67 lines
2.3 KiB
Ruby
# $Id: ipv6.rb 14 2008-03-02 05:42:30Z warchild $
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#
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# Copyright (c) 2008, Jon Hart
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the <organization> nor the
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# names of its contributors may be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY Jon Hart ``AS IS'' AND ANY
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# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL Jon Hart BE LIABLE FOR ANY
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# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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module Racket
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module L3
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# Internet Protocol Version 6 (IPV6)
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# RFC2460
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class IPv6 < RacketPart
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# IP Version (defaults to 6)
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unsigned :version, 4, { :default => 6 }
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# Traffic class
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unsigned :tclass, 8
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# Flow label
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unsigned :flow, 20
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# Payload length
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unsigned :plen, 16
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# Next header type
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unsigned :nhead, 8
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# Hop limit
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unsigned :ttl, 8, { :default => 200 }
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# Source IP address. Must be passed as an integer
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unsigned :src_ip, 128
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# Destination IP address. Must be passed as an integer
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unsigned :dst_ip, 128
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# Payload
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rest :payload
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def initialize(*args)
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@headers = []
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super
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@autofix = true
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end
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# Adjust plen to match the payload
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def fix!
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self.plen = self.payload.length
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end
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end
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end
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end
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# vim: set ts=2 et sw=2:
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