Pkg xen devel - Jan 2009 - Bug#511579: network-bridge script does not work if netdev is not in /e/n/interfaces

Package: xen-utils-common
Version: 3.2.0-2
Severity: normal

Hi,

we have a setup with a system that has multiple ethernet interfaces.
There is a interface eth2 which has an IP configured and is connected to
the network and which is used to administrate that. Another iface is
supposed to be used as netdev (eth0). This interface is unconfigured but
connected to a network to which the DomUs are supposed to be connected.
This setup does not work with the network-bridge script, because it does
not bring eth0 up, after it became the bridge and in consequence the
DomUs do have link, but no network connectivity.

I guess the problem lies in the do_ifup function which tries to call
ifup to bring the new interface (bridge with the name of the original eth
device) up. There is an alternative code path which I guess is supposed
to be called if devices are not in /e/n/interfaces, where the script
expects that ifup would exit with a non-zero exit code. However if a
device is not configured in /e/n/interfaces an "ifup interface"
returns
still a exit 0, therefore this code path is never used.
So eventually the script should not rely on ifup failing with a non-zero
exit code if the interface is not configured in /e/n/interfaces but
instead look if the interface is up after that.

Best Regards,
Patrick

-- System Information:
Debian Release: 5.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500,
'stable')
Architecture: i386 (i686)

Kernel: Linux 2.6.26-1-686 (SMP w/1 CPU core)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Your message dated Sun, 6 May 2012 15:51:34 +0200
with message-id <20120506135134.GA12056 at wavehammer.waldi.eu.org>
and subject line network-bridge not supported
has caused the Debian Bug report #511579,
regarding network-bridge script does not work if netdev is not in
/e/n/interfaces
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner at bugs.debian.org
immediately.)


-- 
511579: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511579
Debian Bug Tracking System
Contact owner at bugs.debian.org with problems
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