LyqydNet-related modem protocols#

From 2012 to 2017, Lyqyd has made a set of network solutions using a common set of solutions named “LyqydNet”, notably used in CC-Hive.

Todo

Similarities with Rednet, e.g. using computer IDs (with limits!). What ports is it using? Not actually sure

Dissimilarities with Rednet, e.g. no repeat port, etc.

Transport AND application protocol… bad, really.

See the main repository and the net daemon source code for more information.

Packet format#

Packets are tables containing the following fields:

Attribute	Presence	Role
`lyqydnet`	Required	Always set to `true` (or any value evaluated as `true`). Serves for isolating LyqydNet-specific packets.
`destination`	Required	Set to the destination host’s numerical computer identifier.
`source`	Required?	Set to the source host’s numerical computer identifier.
`type`	Required.	Set to a two-character identifier for the packet’s purpose.
`toSock`	?	A numerical identifier of the destination socket (equivalent to a “port” in more traditional connected transport protocols).
`fromSock`	?	A numerical identifier of the source socket (equivalent to a “port” in more traditional connected transport protocols).
`confirm`	?	An acknowledgement request flag which makes the current host repeat the message to the sender with the `payload` set to the current message and the `type` set to `PS`.

Packet types are the following:

Code	Family	Role
`SQ`	Socket	A query?
`SR`	Socket	A response?
`SP`	Socket	A data packet?
`SI`	Socket	An instruction?
`SB`	Socket	“done”?
`SC`	Socket	“close”?
`PS`	Packet	A packet acknowledgement, or “packet success”, returning on `confirm == true`?
`HA`	Hosts	Add a host route?
`HT`	Hosts	Send a hosts table?
`HI`	Hosts	A host sends its own information.
`HC`	Hosts	A host saves a Cost?
`HQ`	Hosts	Broadcasting `HA`?
`HR`	Hosts	Remove a route.
`RM`	Rednet	A Rednet message to be treated as Rednet message?

Socket instruction (SI) packet payloads are the following:

Code	Role
`announce`	Announce ourselves as `HA` packet using `{label = <our label>, type = T or R or C}`.
`start`	?
`route`	Enable routing?
`longlink`	Enable longlink mode?
`turtlepacket`	?