RGBCube/serenity
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5 commits

Author SHA1 Message Date
Andreas Kling
cf3b58fbe8 Services: Renamed from Servers 
It didn't feel right to have a "DHCPClient" in a "Servers" directory.
Rename this to Services to better reflect the type of programs we'll
be putting in there.
 2020-05-08 21:57:44 +02:00
Andreas Kling
537a1d31c5 LookupServer: Add missing copyright headers 2020-01-26 13:53:36 +01:00
Andreas Kling
a9ec2225a5 LookupServer: Retry with 0x20 randomization turned off on EREFUSED 
Apparently some authoritative servers don't handle 0x20 randomization
well and may send EREFUSED. Retry with randomization turned off then.

Reference: https://github.com/dns-violations/dns-violations/blob/master/2017/DVE-2017-0006.md

More work towards #10.
 2020-01-26 13:49:46 +01:00
Andreas Kling
00be9b33b1 LookupServer: Verify that DNS response questions match the request 
To protect against DNS spoof attacks, we now check that the questions
in incoming responses match the questions in the request we sent out.

Suggested by @zecke in #10.
 2020-01-26 13:07:43 +01:00
Andreas Kling
871b6b4e1a LookupServer: Minor overhaul 
- Break out request building into a DNSRequest class.
- Break out response parsing into a DNSResponse class.

A DNSRequest contains one or more DNSQuestion objects.
A DNSResponse contains all the DNSQuestions asked, and a DNSAnswer
object for each answer.
 2020-01-26 12:37:08 +01:00