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| protocol [2022-08-05 09:30] – [2.2 IP (standard)] victor | protocol [2023-11-22 16:28] (current) – [Chaosnet protocol details] victor |
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| The original spec, MIT AIM 628, is sometimes not totally clear, and partly out-of-date (e.g. for the link layer and down). What is below might perhaps not be clearer, but more succinct. The real definition is in the behaviour of the implementations - "use the source, Luke!" ((See e.g. the [[https://github.com/bictorv/chaosnet-bridge|Chaosnet bridge]], the [[https://github.com/PDP-10/its/blob/master/src/system/chaos.289|ITS implementation]], and the LISP machine implementations.)) | The original spec, MIT AIM 628, is sometimes not totally clear, and partly out-of-date (e.g. for the link layer and down). What is below might perhaps not be clearer, but more succinct. The real definition is in the behaviour of the implementations - "use the source, Luke!" ((See e.g. the [[https://github.com/bictorv/chaosnet-bridge|Chaosnet bridge]], the [[https://github.com/PDP-10/its/blob/master/src/system/chaos.289|ITS implementation]], and the LISP machine implementations.)) |
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| | For another list of Chaosnet protocols, see [[https://gunkies.org/wiki/List_of_Chaosnet_application_protocols|the Computer History Wiki]]. |
| ===== - Addresses and packets ===== | ===== - Addresses and packets ===== |
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| (Yes, it is confusing that the [[rfc>1196|TCP protocol "finger"]] corresponds to NAME rather than to FINGER.) | (Yes, it is confusing that the [[rfc>1196|TCP protocol "finger"]] corresponds to NAME rather than to FINGER.) |
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| | ''LOAD'' is a simple protocol, which responds with a two-line ANSwer stating the "fair share" if you would use the remote system, and the number of users currently logged in. Example: |
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| | Fair Share: 96% |
| | Users: 1. |
| ==== - Host lookup (stream) ==== | ==== - Host lookup (stream) ==== |
| ''HOSTAB'', see [[https://chaosnet.net/amber.html#Host-Table|here]], is used to look up hosts in a host table. A host name is sent to the server, which responds with attributes of the host followed by an EOF; the interaction can be repeated until the connection is closed. | ''HOSTAB'', see [[https://chaosnet.net/amber.html#Host-Table|here]], is used to look up hosts in a host table. A host name is sent to the server, which responds with attributes of the host followed by an EOF; the interaction can be repeated until the connection is closed. |
| ==== - File transfer and disk access ==== | ==== - File transfer and disk access ==== |
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| ''[[https://github.com/PDP-10/its/blob/master/doc/sysdoc/chaos.file|FILE]]'' is implemented by ITS, Lisp Machines, and the Chaos-over-unix-sockets implementation. A modernised version, used by Symbolics, appears in [[rfc>1037|RFC 1037]]. | ''[[https://github.com/PDP-10/its/blob/master/doc/sysdoc/chaos.file|FILE]]'' is implemented by ITS, TOPS-20, Lisp Machines, and the Chaos-over-unix-sockets implementation. A modernised version, used by Symbolics, appears in [[rfc>1037|RFC 1037]]. |
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| ''[[https://github.com/PDP-10/its/blob/master/doc/sysdoc/mldev.protoc|MLDEV]]'' is used by ITS systems for general remote device access (including hard disk devices) (also over TCP). ((This protocol has enormous security problems.)) | ''[[https://github.com/PDP-10/its/blob/master/doc/sysdoc/mldev.protoc|MLDEV]]'' is used by ITS systems for general remote device access (including hard disk devices) (also over TCP). ((This protocol has enormous security problems.)) |
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| :TODO: | :TODO: |
| * describe LOAD, GENSYM (DB), GMSGS (DB), etc (ITS). | * describe GENSYM (DB), GMSGS (DB), etc (ITS). |
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