Public bug reported:
Binary package hint: munin
The ip_ plugin in 1.4.5-3ubuntu2 fails to handle IPv6 addresses when
/bin/sh is being linked to dash.
Ways to reproduce, assuming the local IPv6 address being
2001:16d8:cc88:0:223:aeff:feb1:b64.
root@stilgar:~# ip6tables -I OUTPUT -s 2001:16d8:cc88:0:223:aeff:feb1:b64
root@stilgar:~# ip6tables -I INPUT -d 2001:16d8:cc88:0:223:aeff:feb1:b64
root@stilgar:~# ln -s /usr/share/munin/plugins/ip_
/etc/munin/plugins/ip_2001:16d8:cc88:0:223:aeff:feb1:b64
root@stilgar:~# ls -l /bin/sh
lrwxrwxrwx 1 root root 4 2011-02-05 14:34 /bin/sh -> dash
export MUNIN_LIBDIR=/usr/share/munin
root@stilgar:~# /etc/munin/plugins/ip_2001\:16d8\:cc88\:0\:223\:aeff\:feb1\:b64
eval: 1: Syntax error: "(" unexpected
root@stilgar:~# ln -sf /bin/bash /bin/sh
root@stilgar:~# /etc/munin/plugins/ip_2001\:16d8\:cc88\:0\:223\:aeff\:feb1\:b64
in.value 239782
out.value 102625
root@stilgar:~#
This being where the problem arise
case $IP in
*:*) # I know this! This is IPv6!
# This is a fun hack to make the plugin ip6 compatible.
# Suggested in ticket #439 by "jodal".
eval 'function iptables() {
/sbin/ip6tables "$@"
}'
;;
esac
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: munin-node 1.4.5-3ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-1.28-generic 2.6.38-rc2
Uname: Linux 2.6.38-1-generic x86_64
Architecture: amd64
Date: Sat Feb 5 14:21:56 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110201.2)
PackageArchitecture: all
ProcEnviron:
SHELL=/bin/bash
PATH=(custom, user)
LC_MESSAGES=sv_SE.utf8
LANG=sv_SE.UTF-8
LANGUAGE=sv_SE:sv:en_GB:en
SourcePackage: munin
** Affects: munin
Importance: Unknown
Status: Unknown
** Affects: munin (Ubuntu)
Importance: Low
Status: Triaged
** Tags: amd64 apport-bug natty
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https://bugs.launchpad.net/bugs/713646
Title:
IPv6 functionality in ip_ plugin assumse #!/bin/sh being bash
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