Packet interception / Mangling

cole_at_opteqint.net
Date: 06/27/05

  • Next message: Alexander Kurilovich: "RE: Wireless CDMA cards for Verizon" 
    Date: Mon, 27 Jun 2005 16:06:35 +0200
To: freebsd-hackers@freebsd.org

    Hi

    I wanted to know if there are any libraries similar to pcap to intercept
    packets/mangle packets.

    What im trying to do specifically is like link compression, and I would then
    need to check if the packet is then compressed and decompress, and so forth and
    so on.

    I would like to avoid having to use a ipfw divert to a port, and specifically
    check all traffic to the box using a library function or some kind of hook into
    the kernel.

    The FreeBSD version I will be using is 4.9 or 4.11, and would like to know if
    there are any such routines available, and whether it could be a userland
    daemon, or if i am going to need to write a kernel loadable module?

    If anyone has any ideas or suggestions, or knows anything about this, it would
    be a great help.

    Regards
    /Cole

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