Multi-Pattern Matching Engine in Snort

[Siti Farhana Binti Lokman <sitifarhana.lokman () postgrad manchester ac uk>]

Hi,

Currently I'm doing a comparative study on analysing performance of multi-pattern matching engine in Snort.

Based on my findings of inner working in Snort so far, it has included more pattern matching algorithms as 
configuration options of the signature matching engine like AC-FULL, MWM, LOW_MEM, etc.
But, if I want to do some modifications or additions (compare other pattern matching algorithms with existing 
unmodified algorithms in Snort), so how can I compile the source code and test the performance?
I'm planning to measure the performance of memory usage vs. speed of a new search method using the latest ruleset in 
Snort "snortrules-snapshot-2962.tar.gz<https://snort.org/downloads/registered/snortrules-snapshot-2962.tar.gz>" with 
some precaptured PCAP files.

Right now I'm having difficulties finding resources in technical part especially on how to compile and run the code.
I read some papers the source code files involve is: fpcreate.c, mpse.c, mpse.h and new C files of a new algorithms.

But can you suggest me if there's any technical documentations or step by step on how to accomplish this?

I'm really sorry as I'm really new in this area and still learning. Any suggestions and advice is much appreciated.

Thank you in advance.

Best regards,
Farhana



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