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

[Blaisorblade <blaisorblade@yahoo.it>]

On Thursday 09 June 2005 21:23, antoine wrote:
> On Thu, 2005-06-09 at 19:17 +0200, Blaisorblade wrote:
> > 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.
>
> AFAIK That has always been the case. I was using it to hardcode the
> cpuinfo and cmdline shown in honeypots.
>
> > 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...
>
> Yep, I was running this instance outside of the chroot for now (because
> of the libcap lib dependency) and not where the honeypot.pl expected it.
> Also, the path was wrong chroot/proc/proc, 'lsof' showed me what I was
> doing wrong, but it still isn't working as expected - more on this
> later.
>
> BTW, I copied /lib/libnss* to the chroot but the pcap interface does not
> come up:
Try also /lib/libresolv.so.2...
> ifconfig eth1 0.0.0.0 promisc up
> SIOCSIFFLAGS: No such device
> SIOCSIFFLAGS: No such device
> So something else must be missing... Any ideas?

In general, post what appears on dmesg (if anything appears), then strace / 
ltrace the UML process to see what's going on, + boot log and command line as 
normally. Strace could suffice, however...
> Antoine

-- 
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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