rlm_python can't create raw attributes

[alandekok]

Issue type

• [X ] Defect - Unexpected behaviour (obvious or verified by project member).

Defect/Feature description

How to reproduce issue

have the python module return

reply:Attr-26 = 0x00000009010f54657374417474726962757465

Output of [radiusd|freeradius] -X showing issue occurring

Wed Aug 23 00:44:09 2017 : Debug: (0) agent_mod: Using thread state 0x563921b35680
Wed Aug 23 00:44:11 2017 : Debug: authenticate - Failed: 'reply:Attr-26' = '0x00000009010f54657374417474726962757465'

The issue seems to be that the module calls

• tmpl_from_attr_str() to convert the LHS to a template containing list + attribute.
  *fr_pair_afrom_da() to create a VP from tmpl.da
  *fr_pair_value_from_str() to add the value to the VP

In the first step, the tmpl_from_attr_str() is passed false for allow_unknown. Instead of erroring when given Attr-26, that function appears to return instead Vendor-Specific.

[herwinw]

IIRC I wrote that part of the code, or rather copied it from rlm_perl. I wouldn't be surprised if rlm_perl has the same issue. And rlm_mruby