this is really cool. BTW, snoopy is an interesting piece of code in and of
itself. A very capable packet sniffer/filter/printer tool in 6585
lines of code, which is pretty amazing. tcpdump clocks in at 93000 lines.
snoopy also has a very clean architecture for adding new protocols.

ron

On Thu, Sep 22, 2016 at 11:54 AM Barret Rhoden <b...@cs.berkeley.edu> wrote:

> On 2016-09-15 at 20:20 ron minnich <rminn...@gmail.com> wrote:
> > github.com:akaros/snoopy
> >
> > builds, not tested.
> >
>
> builds, fixed up, tested, and works pretty damn well.  you'll need my
> latest brho/net branch to use it (including glibc rebuilds).
>
> one of the things i added was the ability to snoop on loopback.  so
> for example, you can listen on the loopback and dump the file in pcap
> format, which you can then analyze with tcpdump, if you like:
>
> (akaros) $ snoopy -D /net/ipifc/1 > loop.pcap &
> (linux ) $ scp my_machine:loop.pcap .
> (linux ) $ tcpdump -r loop.pcap -nve -X
>
> for more info:
> http://plan9.bell-labs.com/magic/man2html/8/snoopy
>
> i tested it on ether0 (default) and ipifc/1 (loopback).  i think it
> won't work on ipifc/0, due to the ethermedium code.  i tried -d, -D,
> -t, -N and -M.  i added '0' as an option to -N to show everything.  for
> more info, checkout the commit log in akaros/snoopy.
>
> barret
>
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