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Interested in GSOC idea: Packet Editor (CLI)
From: Kay <kay21s () gmail com>
Date: Tue, 16 Apr 2013 14:42:24 +0800

I am a graduate student from University of Science and Technology of China.
My previous projects and research focus on accelerating high-speed network
processing(10Gbps) with multicore/manycore architecture. My previous
projects include building a high-performance HTTP parser, a TCP lookup
algorithm, and a RTSP reverse proxy. Therefore, I think I am experienced in
this field, and I'd like to learn new staffs in the project.

I am very interested in the Packet Editor (CLI). The reason is that about
one year ago, I have to synthesis a trace with one million concurrent
sessions for the experiment of a project. Of course I used editcap that
time, but I felt editcap should have more powerful functions for more
useful situations. And since I will use editcap more frequently in the
future, it will be good to improve edicap right now, and make it more
useful for everyone :-)

I have concluded some useful features I would like editcap to have in the
future, which are listed as followings:

1) Replace the address/port with specific range or random address/port.
This is useful when one tries to hide the real ip addresses, or replace
with new ones. [just as said in the idea page]
2) Split trace file by "connection" or "session". This is useful when one
wants to split a trace file in multiple ones while still maintaining the
integrity of each connection.
3) Get packets from a specific address/ a specific range of addresses from
a trace file. This helps better investigate a specific connection when
there existing huge amounts of them.
4) Add/delete a specific field, i.e. "Cache-Control: no-cache" in HTTP
Header in all relevant packets, so we can synthesis new traces with
existing ones.

5) Removing or overwriting sensitive data
And one question, the idea page write this, but I am not quite sure about
what is regarded as sensitive data? what exact functions do I have to
implement for this feature?

Thanks for your comments and suggestions for my ideas. And what other
features will you mentors suggest me to implement in this project? Thanks.

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