[577] in linux-net channel archive
Re: Transparent application-level gateways
daemon@ATHENA.MIT.EDU (Julio Sanchez)
Mon Jun 26 14:17:01 1995
Date: Mon, 26 Jun 95 16:23:33 GMT
From: jsanchez@gmv.es (Julio Sanchez)
To: linux-net@vger.rutgers.edu
Julio Sanchez (jsanchez@gmv.es) wrote:
: Now we have blocking and forwarding filters and masquerading. As far as
: I know there is only one piece missing: kernel support for application-
: level gateways.
OK, I think I will follow up myself.
I have done a quick and dirty trial. You can find the result at
ftp://ftp.esegi.es/pub/linux/catch
It is written against 1.2.10.
Please don't hit me too hard for it. It is a first try to see if it
would be hard. It seems pretty easy.
I overloaded the blocking firewall with a new ``catch'' flag. Only TCP
for the time being, though. I also patched ipfwadm to understand the
new flag.
Any volunteer to patch some real application to make use of it?
If it proves workable, I will clean it so that does not interfere
with masquerading (I have the feeling it does), prepare the patch
for conditional compilation, etc.
Enjoy,
Julio
--
Julio Sanchez, GMV SA, Isaac Newton 11, PTM Tres Cantos, E-28760 Madrid, Spain
Ph. +34 1 807 21 85 | jsanchez@gmv.es | Traveller, there is no
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