Edit Protocolo ETHERLITE

Title:

Last edited: 10:37:09 am on 6 February 2023 by 3.0.1.3

Apuntes sobre el protocolo del etherlite, obtenidos leyendo los fuentes del driver dgrp-1.9.40 para linux 2.6.27 y de capturas de tráfico de red entre el anden2 y una UIS.

Notas generales:
- Es un protocolo BIG ENDIAN (un "u16_t s" se manda como "((s>>8)&0xff) (s&0xff)")

Mensajes PC -> ETHERLITE

Password reply (dgrp_net_ops.c:1846)
|Field|size|Contents|Notes|
|Header|2|0xfd 0x20||
|Passwd size|2|((strlen(passwd)>>8)&0xff) (strlen(passwd)&0xff)|
|Passwd|strlen(passwd)|(n bytes of string passwd)||

ImmediateOpen/PersistentOpen/IncomingOpen/Close/CancelOpen Request (dgrp_net_ops.c:1932, dgrp_net_ops.c:1932, dgrp_net_ops.c:1959, dgrp_net_ops:1976, dgrp_net_ops:2513)
|Field|size|Contents|Notes|
|Header|2|(0xb0+(port&0xf)) 0x0a||
|Type|1|(0x00 or 0x01 or 0x02 or 0x03 or 0x04)|0x00:Immediate Open Request 0x01:Persistent Open Request 0x02:Incoming Open Request 0x03:Close Request 0x04:Cancel Open Request (cancels a pending ImmediateOpen/PersistentOpen/IncomingOpen request)|

CompositeCommand: Send Query (dgrp_net_ops.c:1994)
|Field|size|Contents|Notes|
|SequenceRequest|2|(0xb0+(port&0xf)) 0x0e||
|ConfigureEventConditions|5|(0xb0+(port&0xf)) 0x2a 0x02 0xc0 (DM_DTR(0x01) bitwiseor DM_RTS(0x02) bitwiseor DM_CTS(0x10) bitwiseor DM_DSR(0x20) bitwiseor DM_RI(0x40) bitwiseor DM_CD(0x80))|
|StatusRequest|2|(0xb0+(port&0xf)) 0x10||
|BufferRequest|2|(0xb0+(port&0xf)) 0x14||
|PortCapabilityRequest|2|(0xb0+(port&0xf)) 0x16||
|RaiseModemSignals|5|(0xb0+(port&0xf)) 0x2c (DM_DTR(0x01) bitwiseor DM_RTS(0x02)) mflownone(0x00) mcontrolnone(0x00)||

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