tcpdump mailing list archives

Re: Remote capture capabilities


From: Michael Richardson <mcr () sandelman ottawa on ca>
Date: Thu, 05 Jun 2003 16:55:26 -0400

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"Fulvio" == Fulvio Risso <fulvio.risso () polito it> writes:
    Fulvio> No, it can change.
    Fulvio> Currently we transmit bpf-compiled programs.

  Ugh. That's not ideal. But, I'll bet it works well.

    Fulvio> However, the filter has a "type" field, which can be used to send
    Fulvio> other 
    Fulvio> types of filters (e.g. literal strings like "ip and port 80").

  Excellent!

    >> As for divergence - it might be best if you guys went and experimented
    >> for 
    >> awhile and reported back to us.

    Fulvio> This is a better answer than what you said before.
    Fulvio> I totally agree now.

  The trick is to make sure that all non-dangerous stuff gets committed,
that way there isn't as much divergence.

  We (in the list) have talked a lot about needing a new pcap format. One
that can have space for all the meta data people want, and that 
can me merged with /bin/cat.  (No per-file header)
  Once things get transmitted across the wire, this is even more critical,
IMO.  

]       ON HUMILITY: to err is human. To moo, bovine.           |  firewalls  [
]   Michael Richardson, Sandelman Software Works, Ottawa, ON    |net architect[
] mcr () sandelman ottawa on ca http://www.sandelman.ottawa.on.ca/ |device driver[
] panic("Just another Debian GNU/Linux using, kernel hacking, security guy"); [


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