Re: [uml-devel] 2.6.12-rc6-mm1 patches testing

[Blaisorblade <blaisorblade@yahoo.it>]

On Thursday 09 June 2005 18:53, antoine wrote:
> On Thu, 2005-06-09 at 17:31 +0100, antoine wrote:
> > > > Now, if someone could have a look at hppfs I could resurect my
> > > > honeypots.
> > >
> > > I've not the time, however test the attached patches. The first one
> > > fixes the basical bugs; the second one could be needed to fix a fd
> > > leak... but I don't think it's needed at all, so test with only the
> > > first and let me know if the 2nd is needed, or if there are any
> > > problems (in that case, a ready-to-use hppfs configuration +
> > > explaination would be happily accepted, I've really little time now).
> >
> > Works fine with just the first patch. Thank you very much!
>
> Small correction: local file override works fine (files in the host's
> fake proc appear in the guest's /proc)
That is allowed, too? The daemon uses normal files only to forcibly "remove" 
entries, while it uses sockets for the rest.
> but I can't get the honeypot.pl 
> script to interact with it.
Ok, let's see... that script supplies the needed values and uses the libraries 
in separate perl modules...
> So for now, I'll have to hardcode all the values I want to hide and hope
> that no software is going to rely on them.

> I've used the one that was previously working:
This is based on the one from the uml_utilities tarball.

Have you tested that his libraries are found / that the script works with a 
2.4 UML, first?

Also, have you tested if it's the chroot and/or SELinux interacting? The 
daemon communicates through a Unix domain socket when host contents are 
supplied ... the base path is $ARGV[0], i.e. the first parameter...

> #
> # Copyright (C) 2002, 2003 Jeff Dike (jdike@karaya.com)
> # Licensed under the GPL
> #
>
> use hppfs;
> use hppfslib;
> use strict;
>
> my $dir;
>
> @ARGV and $dir = $ARGV[0];
>
> my $hppfs = hppfs->new($dir);
>
> my $remove_filesystems = remove_lines("hppfs", "hostfs");
> my $remove_mtd_nbd_ubd = remove_lines("mtd", "nbd", "ubd");
>
> # Need to be able to add directories, i.e. driver, bus/pci
> # partitions needs work
> # slabinfo if UML ever uses the slab cache for anything
>
> $hppfs->add("dma" => proc("dma"),
>             "devices" => remove_lines("ubd"),
>             "exitcode" => "remove",
>             "diskstats" => "remove",
>             "devices" => $remove_mtd_nbd_ubd,
>             "filesystems" => $remove_filesystems,
>             "interrupts" => "remove",
>             "iomem" => proc("iomem"),
>             "mm" => "remove",
>             "ioports" => proc("ioports"),
>             "kcore" => "remove",
>             "mounts" => $remove_filesystems,
>             "misc" => "remove",
>             "pid/mounts" => $remove_filesystems,
>             "partitions" => "remove",
>             "stat" => proc("stat"),
>             "uptime" => proc("uptime"),
>             dup_proc_dir("bus", $dir) );
>
> $hppfs->handler();


-- 
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade

	

	
		
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