[Bug 2012145] Re: There is no way to set the kerberos (krb5) credential cache name for cifs.upcall

[Karl O. Pinc]

See also: bug #2012147
Here are clickable links for the bugs mentioned above: bug #2012140 bug #2012143

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Title:
  There is no way to set the kerberos (krb5) credential cache name for
  cifs.upcall

Status in cifs-utils package in Ubuntu:
  New

Bug description:
  When the krb5 credential cache file name differs from that compiled
  into cifs.upcall, cifs.upcall can no longer be used.

  Mounting fails when the credential cache used by krb5 differs from
  that used by cifs.upcall.  Journalctl shows messages like:

  ...krb5_child[4725]: No credentials cache found (filename:
  /tmp/krb5cc_127408622_wH2NwY

  I don't know enough to say what the configuration mechanism should be
  to get the credential cache filename to cifs.upcall.  Maybe request-
  key.conf(5), or maybe something else.  But at the moment there seems
  to be no way to have cifs.upcall work when krb5 is configured to use
  an "alternate" credential cache.

  See also Ubuntu bugs: #2012140 #2012143
  https://bugs.launchpad.net/ubuntu/+source/krb5/+bug/2012140
  https://bugs.launchpad.net/ubuntu/+source/cifs-utils/+bug/2012143

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: cifs-utils 2:6.14-1ubuntu0.1
  ProcVersionSignature: Ubuntu 5.15.0-67.74-generic 5.15.85
  Uname: Linux 5.15.0-67-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82.3
  Architecture: amd64
  CasperMD5CheckResult: pass
  Date: Sat Mar 18 17:59:38 2023
  InstallationDate: Installed on 2023-03-09 (9 days ago)
  InstallationMedia: Ubuntu-Server 22.04.2 LTS "Jammy Jellyfish" - Release amd64 (20230217.1)
  ProcEnviron:
   SHELL=/bin/bash
   LANG=en_US.UTF-8
   TERM=xterm-256color
   PATH=(custom, no user)
  SourcePackage: cifs-utils
  UpgradeStatus: No upgrade log present (probably fresh install)

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