hooks: move pam.d files into /usr/lib/pam.d #272
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…y for Core Desktop to experiment with their own per-snap profiles
…something desktop must take into account when mounting on top
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Leave /etc/pam.d empty for Core Desktop to experiment with their own per-snap profiles.
A little info surrounding profile loading, also see the man-pages
There are three directories, in which PAM is looking for the service files in the following order:
If a file is not found in /etc/pam.d, it will be searched in /usr/lib/pam.d and afterwards in /usr/etc/pam.d.
Considering this function in the source: https://github.com/linux-pam/linux-pam/blob/37b416c152ed833dcc55c84068c77eb713748d24/libpam/pam_handlers.c#L293
it looks like this should be no issues
UPDATE It turned out that include files from pam.d files do only check in
/etc/pam.d, which on the surface looks like to be a misalignment with the man-pages. Filed bug https://bugs.launchpad.net/ubuntu/+source/pam/+bug/2087827REF: SNAPDENG-34125