[atlas] Detecting additional information from the probes

On Fri, Feb 12, 2016 at 04:20:51PM +0900,
 Christoph Rauterberg <c.rauterberg at stud.uni-goettingen.de> wrote 
 a message of 60 lines which said:

> I was wondering, if there is some way to get the information about
> the Authentication Bit of DNSSEC specified in the DNS query headers.

You mean the reply? 

> A.f.a.i.k., the probes do something similiar/do a /dig/ lookup.

No. The probes have a DNS client. dig is a DNS client. That's all the
similarity.

> Can anyone maybe tell me, if there are possibilities to access the AUTH
> bith

It is accessible (the full response is in the "abuf" field, you just
have to decode it, example in Python:

                    answer = result['abuf'] + "=="
                    content = base64.b64decode(answer)
                    msg = dns.message.from_wire(content)
		    if msg.flags & dns.flags.AD: 
		         print "Authentic"