Public bug reported:
After upgrading from 12.04 to 14.04, I noticed that gogoc no longer
started. I tracked it down to a logical error in the bash script to
build the tunnel.
The following line appears 3 times in /usr/share/gogoc/template/linux.sh
(lines 167, 279 and 312):
echo "$subif" | while read sub int ; do
It should read:
echo "$subif" || while read sub int ; do
(Note that "|" becomes "||")
When the subinterfaces file (/etc/gogoc/interfaces.conf) is empty or
missing, the subif variable has an empty value. It appears that the
intention of the aforementioned line in linux.sh is to test for an empty
value, and only process it if it's populated. It doesn't seem to work
this way.
What is happening, is that the radvd config file is populated with a
second interface containing uninitialized nonsense, and radvd in turn
fails to parse the config file. Radvd will then return an error status
and gogoc will react by tearing down the tunnel.
** Affects: gogoc (Ubuntu)
Importance: Undecided
Status: New
** Patch added: "gogoc-bug.patch"
https://bugs.launchpad.net/bugs/1312649/+attachment/4096417/+files/gogoc-bug.patch
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https://bugs.launchpad.net/bugs/1312649
Title:
linux.sh processes empty/missing subinterface file
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