[Bug 1808520] Comment bridged from LTC Bugzilla

[bugproxy]

------- Comment From ifranzki at de.ibm.com 2019-01-07 04:24 EDT-------
zkey-cryptsetup (as well as zkey) is delivered as part of the s390-tool package.

Only one subcommand of zkey-cryptsetup depends on this library, other
subcommands work well without. That's why it is coded as a 'soft-
dependency' checked during runtime.

So shipping it even without having the CCA library makes totally sense.

Users of secure key disk encryption (for which this tool is needed)
know that they require an CCA crypto adapter together with the CCA
library. So most of them have the CCA library installed anyway.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to s390-tools in Ubuntu.
https://bugs.launchpad.net/bugs/1808520

Title:
  [UBUNTU] zkey: Enhance error message about missing CCA library.

Status in Ubuntu on IBM z Systems:
  Triaged
Status in s390-tools package in Ubuntu:
  New

Bug description:
  Description:
  zkey: Enhance error message about missing CCA library.

  Symptom: 
  "zkey-cryptsetup reencipher" fails with missing library and confusing error message.

  Problem: 
  The "zkey reencipher" command as well as the "zkey-cryptsetup reencipher" command requires the IBM CCA Host Libraries and Tools package to be installed. This is a closed source library that is not distributed by the distributions, but               must be downloaded separately from an IBM web page.

  Solution:
  Enhance the error message to point to the web page where the package can be downloaded.

  Reproduction:
  Run the "zkey-cryptsetup reencipher" or "zkey reencipher" command without having installed the IBM CCA Host Libraries and Tools package.

  Upstream commit(s):
  5a10aa73a97b18bf572523e7f86d48797071fb38

  package: s390-tools

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1808520/+subscriptions