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Subject: Re: generic network protocols parser ?
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i'm not an expert, but you can attach to bpf (berkeley packet filter)

greets

Andreas Bachmann

> Hi all,
> I am wondering if any one knows  about a generic parser which takes a
> packet (mbuf) of a certain protocol (e.g RSVP ) as input and generates
> some data structre representing the packet ?
>
> I've been searching for a while and found that ethereal and tcpdump for
> example use specific data structres and functions to dissect each
> protocol packets. Is this the only approach possible ?
>
> My supervisor suggested using a TLV (Type/Length/Value) approach
> instead. Any opinions about that?
>
> If no such a parser exists is there any practical reason why ?
>
> Thanks,
> Aziz
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