Aziz KEZZOU wrote:
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 ?
you might look at DPF (a packet filter/classifier).. it has an interesting filter description language.
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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