Openscap module

[dincamihai]

What does this PR do?

oscap command line tool wrapper module

What issues does this PR fix or reference?

It makes it possible to run oscap on the minions.
The module accepts a string of parameters that you would normally pass to oscap in command line.
(eg: salt-call --local openscap.xccdf "eval --profile Default /usr/share/openscap/scap-yast2sec-xccdf.xml")

Currently, the module can only run oscap xccdf eval.
It needs file_recv=True on the master because it uses cp.push_dir to push the generated files.

Examples of outputs:

• salt-call --local openscap.xccdf "eval --profile Default /usr/share/openscap/scap-yast2sec-xccdf.xml"

  local:
      ----------
      error:
          None
      success:
          True
      upload_dir:
          /tmp/tmpBAhfx8
  

• restricted to eval: salt-call --local openscap.xccdf "evaal --profile Default /usr/share/openscap/scap-yast2sec-xccdf.xml"

  local:
      ----------
      error:
          argument action: invalid choice: 'evaal' (choose from 'eval')
      success:
          False
      upload_dir:
          None
  

• profile is required: salt-call --local openscap.xccdf "eval --profiles Default /usr/share/openscap/scap-yast2sec-xccdf.xml"

  local:
      ----------
      error:
          argument --profile is required
      success:
          False
      upload_dir:
          None
  

• unknown params ignored: salt-call --local openscap.xccdf "eval --profile Default --unknown Param /usr/share/openscap/scap-yast2sec-xccdf.xml"

  local:
      ----------
      error:
          None
      success:
          True
      upload_dir:
          /tmp/tmp6pLJfN
  

• missing file: salt-call --local openscap.xccdf "eval --profile Default /usr/share/openscap/missing.xml"

  local:
      ----------
      error:
          OpenSCAP Error: Unable to open file: '/usr/share/openscap/missing.xml' [oscapxml.c:575]
      success:
          False
      upload_dir:
          None
  

Tests written?

Yes

[cachedout]

@dincamihai Could you please resolve this lint errors? Thanks. https://jenkins.saltstack.com/job/PR/job/salt-pr-lint-n/8670/violations/

[dincamihai]

@cachedout fixed