Package: resolvconf Severity: serious Version: 1.76 Tags: ipv6 Justification: breaks IPv6 networking / bashism in '#!/bin/sh' sourced script (Policy ยง10.4)
Dear Thomas, on a fresh Jessie installation, the file /etc/dhcp/dhclient-enter-hooks.d/resolvconf is sourced by isc-dhcp-client's /sbin/dhclient-script which has a "#!/bin/sh" shebang line (since 4.3.1-2 / 27th of September 2014 / Shellshock) on which resolvconf has no influence. But /etc/dhcp/dhclient-enter-hooks.d/resolvconf contains two bashisms which only appear if DHCPv6 is in use: # dhclient -6 eth0 /sbin/dhclient-script: 55: /sbin/dhclient-script: shopt: not found /sbin/dhclient-script: 60: /sbin/dhclient-script: [[: not found /sbin/dhclient-script: 60: /sbin/dhclient-script: [[: not found /sbin/dhclient-script: 60: /sbin/dhclient-script: [[: not found /sbin/dhclient-script: 68: /sbin/dhclient-script: shopt: not found # The affected lines are: https://sources.debian.net/src/resolvconf/1.76/etc/dhcp/dhclient-enter-hooks.d/resolvconf/#L55 and https://sources.debian.net/src/resolvconf/1.76/etc/dhcp/dhclient-enter-hooks.d/resolvconf/#L60 Purging resolvconf fixes the issue. I may come up with a proper patch later. But something like 'printf "%s" "$nameserver" | grep -qi "^fe80::"' as test in the if clause should do the trick. (Thanks to Goswin Brederlow for the idea!) P.S.: No wicd involved this time. ;-) -- System Information: Debian Release: 8.0 APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 3.16.0-4-amd64 (SMP w/8 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages resolvconf depends on: ii debconf [debconf-2.0] 1.5.55 ii ifupdown 0.7.52 ii init-system-helpers 1.22 ii initscripts 2.88dsf-58 ii lsb-base 4.1+Debian13+nmu1 resolvconf recommends no packages. resolvconf suggests no packages. -- debconf-show failed -- System Information: Debian Release: 8.0 APT prefers unstable APT policy: (990, 'unstable'), (600, 'testing'), (500, 'buildd-unstable'), (400, 'stable'), (110, 'experimental'), (1, 'buildd-experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.17-rc5-amd64 (SMP w/1 CPU core) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init) -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
