[Bug 1659358] Re: /etc/auto.sb is not directly usable in yakkety

[ChristianEhrhardt]

Hi,
thank you for your report and your help to make Ubuntu better.

In Zesty this file is already not packaged anymore, as it was changed
how this is handled (master map generated by mount.smbfs I think).

The auto.smb file comes as it is provided by upstream.
Yet filing a bug there is rather pointless as they already moved away from it (see my zesty comment).

Can you elaborate what the impact of this is for the user?
Does it just not work with the cache or is it even worse?

Depending on severity one might consider an SRU at least for Xenial (https://wiki.ubuntu.com/StableReleaseUpdates).
Feel free to go on suggesting you change as a debdiff, yet to sponsor that I'd need to ask more of an kerberos expert.

** Changed in: autofs (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1659358

Title:
  /etc/auto.sb is not directly usable in yakkety

Status in autofs package in Ubuntu:
  Fix Released

Bug description:
  lsb_release -rd
  Description:	Ubuntu 16.10
  Release:	16.10
  apt-cache policy autofs
  autofs:
    Installed: 5.1.1-1ubuntu3
    Candidate: 5.1.1-1ubuntu3
    Version table:
   *** 5.1.1-1ubuntu3 500
          500 http://de.archive.ubuntu.com/ubuntu yakkety/main amd64 Packages
          100 /var/lib/dpkg/status

  Package autofs ships with shell script installed as /etc/auto.smb

  This script is not directly usable (at least in yakkety)
  It has following issues:

  1. Shell variables ${UID} and ${GID} will be 0 when script is called from automounter.
     Correct variables should be ${AUTOFS_UID} and ${AUTOFS_GID}.

  2. Default location of kerberos cache file (at least if created by pam_krb5.so) 
     is not /tmp/krb5cc_<UID> but /tmp/krb5cc_<UID>_<random>

  So instead of 
  ----
      if [ -f /tmp/krb5cc_$uid ] && klist -s /tmp/krb5cc_$uid; then
              cache=/tmp/krb5cc_$uid
              return
      fi
  ----
  should be something like that
  ----
      for krbc in /tmp/krb5cc_$uid_*; do
          if klist -s $krbc; then
              cache=$krbc
              return
          fi
      done
  ----

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