TheArchive/iodine
1
0
Fork 0
mirror of https://github.com/yarrick/iodine.git synced 2025-08-15 07:17:45 +00:00
Code Issues Packages Projects Releases Wiki Activity

Implemented new protocol for upstream data

Browse Source
This commit is contained in:
Erik Ekman
2008-12-11 22:39:06 +00:00
committed by Erik Ekman
parent 2c4c5ec1ba
commit 8d27febc7d
6 changed files with 161 additions and 81 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
doc/proto_00000403.txt
View File

@@ -38,8 +38,8 @@ Server replies:
Switch codec:
Client sends:
First byte s or S
One byte ASCII digit, meaning userid
One byte ASCII digit, with value 5 or 6, representing number of raw
5 bits coded as Base32 char, meaning userid
5 bits coded as Base32 char, with value 5 or 6, representing number of raw
bits per encoded byte
Server sends:
Name of codec if accepted. After this all upstream data packets must
@@ -47,28 +47,28 @@ Server sends:
BADCODEC if not accepted. Client must then revert to Base32
Data:
Upstream data header (encoded as 4 bytes Base32):
4321 0 432 10 43 210 4321 0
+----+-+---+--+--+---+----+-+
|UUUU|L|SSS|FF|FF|DDD|GGGG|C|
+----+-+---+--+--+---+----+-+
Upstream data header:
3210 432 10 43 210 4321 0
+----+---+--+--+---+----+-+
|UUUU|SSS|FF|FF|DDD|GGGG|L|
+----+---+--+--+---+----+-+
Downstream data header:
7 654 3210 765 4321 0
+-+---+----+---+----+-+
|L|SSS|FFFF|DDD|GGGG|C|
|C|SSS|FFFF|DDD|GGGG|L|
+-+---+----+---+----+-+
UUUU = Userid
L = Last fragment in packet flag
SSS = Upstream packet sequence number
SS = Upstream packet sequence number
FFFF = Upstream fragment number
DDD = Downstream packet sequence number
GGGG = Downstream fragment number
C = Compression enabled for this packet
C = Compression enabled for downstream packet
Upstream data packet starts with 4 bytes Base32 encoded header, then comes
the payload data, encoded with chosen codec.
Upstream data packet starts with 1 byte ASCII hex coded user byte, then 3 bytes
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.
@@ -77,7 +77,10 @@ Ping:
Client sends:
First byte p or P
Rest encoded with Base32:
1 byte userid
1 byte with 4 bits userid
1 byte with:
3 bits downstream seqno
4 bits downstream fragment
CMC
The server response to Ping and Data packets is a DNS NULL type response: