Commit graph

4 commits

Author SHA1 Message Date
Vincent Ambo
cefb60f20c refactor(lisp/dns): Introduce structured QNAME representation
Adds a struct that represents QNAMEs, tracks the stream offset at
which the QNAME parsing began and makes it possible to resolve
pointers inside of the QNAME.

Note that resolving pointers needs to happen *after* the call to
lisp-binary currently. It might be possible to implement this inside
of lisp-binary in the future by switching on the top two bits of the
qname field, but since this is happening *inside* of a reader function
I'm not currently sure how to implement it.
2020-01-26 02:51:29 +00:00
Vincent Ambo
7ef14db936 feat(lisp/dns): Check in initial DNS message implementation
This uses lisp-binary to define serialisation types for the DNS
messages defined by RFC 1035.

Currently the compression scheme used for QNAMEs is not supported,
hence deserialisation of even simple records fails after the header
and question sections are read.
2020-01-26 01:20:45 +00:00
Vincent Ambo
09621f5371 refactor(lisp/dns): Split package into multiple files
Adds a package definition file and moves the current client into
client.lisp

Note that the client is not working at all at this commit as this is a
work-in-progress snapshot.
2020-01-26 01:20:45 +00:00
Vincent Ambo
e50c362244 feat(lisp/dns): Check in very early DNS-over-HTTPS client
This includes very barebones support for querying TXT and MX records
right now. The returned structure is not turned into a more convenient
format and error handling is, well, NIL.
2020-01-22 18:04:26 +00:00