[Soot-list] Instrument for intercepting all network I/Os

[Haipeng Cai]

Thanks again, Eric.

The paper you points me to is indeed a very pertinent reference. I am gonna
read it in detail.
Very much appreciate your help.

Kind regards,
haipeng


On Thu, Feb 12, 2015 at 6:15 AM, Bodden, Eric <eric.bodden at sit.fraunhofer.de
> wrote:

> Hi again.
>
> > What I am trying to do is in essence part of dynamic slicing of
> distributed programs. I wanted to find all
> > the network I/O related function calls in the user program in order to
> instrument for identifying inter-process (communication) dependencies,
> which are important parts of a distributed program slice.
> >
> > I think the sniffers can help with network traffic monitoring or so in a
> standalone manner, but for my task, intercepting the network I/Os
> programmatically would be desired. I guess something similar to the
> instrumentation I want has been done by the sniffers inside, yet there is
> no source code available to refer to regarding how exactly they realized
> the sniffer functionalities.
>
> Sniffing happens on a lower level, by intercepting traffic on the OS
> level. I think that, after all, this does not really compare to what you
> want to do.
>
> > Although an alternative way would be modifying system calls related to
> network I/Os at OS level, or changing relevant APIs in JRE assuming that
> any network libraries the application program uses eventually resort to the
> JRE APIs, these approaches seem to be overly heavyweight.
>
> Makes sense
>
> > Also, I am wondering about the state of art/practice of source-code
> analysis dealing with interprocess dependencies in distributed systems.
>
> I wonder whether this publication of ours is interesting to you:
> http://www.bodden.de/pubs/omj+13effective.pdf
>
> It explains how we statically resolve inter-component dependencies in
> Android. Maybe that gives you some ideas.
>
> Cheers,
> Eric
>
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