update docs #75

This commit is contained in:
J. A. Bezemer 2009-09-20 15:11:11 +00:00 committed by Erik Ekman
parent 6b78b3a9bd
commit aaac632d16
1 changed files with 33 additions and 0 deletions

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@ -63,6 +63,26 @@ Server sends:
BADCODEC if not accepted. Client must then revert to Base32
BADLEN if length of query is too short
Options:
Client sends:
First byte o or O
5 bits coded as Base32 char, meaning userid
1 char, meaning option
Server sends:
Full name of option if accepted. After this, option immediately takes
effect in server.
BADCODEC if not accepted. Previous situation remains.
All options affect only the requesting client.
Option chars:
t or T: Downstream encoding Base32, for TXT/CNAME/A/MX (default)
s or S: Downstream encoding Base64, for TXT/CNAME/A/MX
r or R: Downstream encoding Raw, for TXT/NULL (default for NULL)
If codec unsupported for request type, server will use Base32; note
that server will answer any mix of request types that a client sends.
Server may disregard this option; client must always use the downstream
encoding type indicated in every downstream DNS packet.
Probe downstream fragment size:
Client sends:
First byte r or R
@ -113,6 +133,19 @@ Base32 encoded header, then comes the payload data, encoded with chosen codec.
Downstream data starts with 2 byte header. Then payload data, which may be
compressed.
In NULL responses, downstream data is always raw. In all other response types,
downstream data is encoded (see Options above).
Encoding type is indicated by 1 prefix char:
TXT:
End result is always DNS-chopped (series of len-prefixed strings
<=255 bytes)
t or T: Base32 encoded before chop, decoded after un-chop
s or S: Base64 encoded before chop, decoded after un-chop
r or R: Raw no encoding, only DNS-chop
CNAME/A/MX:
h or H: Hostname encoded with Base32
i or I: Hostname encoded with Base64
Ping:
Client sends:
First byte p or P