MeshCentral/amt/amt-ider-module.js
2021-01-09 14:31:09 -08:00

646 lines
35 KiB
JavaScript

/*
Copyright 2020-2021 Intel Corporation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
@description Intel AMT IDER module
@author Ylian Saint-Hilaire
@version v0.3.0
*/
/*jslint node: true */
/*jshint node: true */
/*jshint strict:false */
/*jshint -W097 */
/*jshint esversion: 6 */
"use strict";
// Construct a Intel AMT IDER object
module.exports.CreateAmtRemoteIder = function (webserver, meshcentral) {
const fs = require('fs');
var obj = {};
obj.debug = false;
obj.protocol = 3; // IDER
obj.bytesToAmt = 0;
obj.bytesFromAmt = 0;
obj.rx_timeout = 30000; // Default 30000
obj.tx_timeout = 0; // Default 0
obj.heartbeat = 20000; // Default 20000
obj.version = 1;
obj.acc = "";
obj.inSequence = 0;
obj.outSequence = 0;
obj.iderinfo = null;
obj.enabled = false;
obj.iderStart = 0; // OnReboot = 0, Graceful = 1, Now = 2
obj.floppy = null;
obj.cdrom = null;
obj.floppySize = null;
obj.cdromSize = null;
obj.floppyReady = false;
obj.cdromReady = false;
obj.sectorStats = null;
// Private method
function debug() { if (obj.debug) { console.log(...arguments); } }
// Mode Sense
var IDE_ModeSence_LS120Disk_Page_Array = String.fromCharCode(0x00, 0x26, 0x31, 0x80, 0x00, 0x00, 0x00, 0x00, 0x05, 0x1E, 0x10, 0xA9, 0x08, 0x20, 0x02, 0x00, 0x03, 0xC3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xD0, 0x00, 0x00);
var IDE_ModeSence_3F_LS120_Array = String.fromCharCode(0x00, 0x5c, 0x24, 0x80, 0x00, 0x00, 0x00, 0x00, 0x01, 0x0a, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x03, 0x16, 0x00, 0xa0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa0, 0x00, 0x00, 0x00, 0x05, 0x1E, 0x10, 0xA9, 0x08, 0x20, 0x02, 0x00, 0x03, 0xC3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xD0, 0x00, 0x00, 0x08, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x06, 0x00, 0x00, 0x00, 0x11, 0x24, 0x31);
var IDE_ModeSence_FloppyDisk_Page_Array = String.fromCharCode(0x00, 0x26, 0x24, 0x80, 0x00, 0x00, 0x00, 0x00, 0x05, 0x1E, 0x04, 0xB0, 0x02, 0x12, 0x02, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xD0, 0x00, 0x00);
var IDE_ModeSence_3F_Floppy_Array = String.fromCharCode(0x00, 0x5c, 0x24, 0x80, 0x00, 0x00, 0x00, 0x00, 0x01, 0x0a, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x03, 0x16, 0x00, 0xa0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa0, 0x00, 0x00, 0x00, 0x05, 0x1e, 0x04, 0xb0, 0x02, 0x12, 0x02, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xd0, 0x00, 0x00, 0x08, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x06, 0x00, 0x00, 0x00, 0x11, 0x24, 0x31);
var IDE_ModeSence_CD_1A_Array = String.fromCharCode(0x00, 0x12, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x1A, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
//var IDE_ModeSence_CD_1B_Array = String.fromCharCode(0x00, 0x12, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x1B, 0x0A, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
var IDE_ModeSence_CD_1D_Array = String.fromCharCode(0x00, 0x12, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x1D, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
var IDE_ModeSence_CD_2A_Array = String.fromCharCode(0x00, 0x20, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x2a, 0x18, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
//var IDE_ModeSence_CD_01_Array = String.fromCharCode(0x00, 0x0E, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x01, 0x06, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00);
var IDE_ModeSence_3F_CD_Array = String.fromCharCode(0x00, 0x28, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x01, 0x06, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x2a, 0x18, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
// 0x46 constant data
var IDE_CD_ConfigArrayHeader = String.fromCharCode(0x00, 0x00,0x00, 0x28, 0x00, 0x00, 0x00, 0x08);
var IDE_CD_ConfigArrayProfileList = String.fromCharCode(0x00, 0x00, 0x03, 0x04, 0x00, 0x08, 0x01, 0x00);
var IDE_CD_ConfigArrayCore = String.fromCharCode(0x00, 0x01, 0x03, 0x04, 0x00, 0x00, 0x00, 0x02);
var IDE_CD_Morphing = String.fromCharCode(0x00, 0x02, 0x03, 0x04, 0x00, 0x00, 0x00, 0x00);
var IDE_CD_ConfigArrayRemovable = String.fromCharCode(0x00, 0x03, 0x03, 0x04, 0x29, 0x00, 0x00, 0x02);
var IDE_CD_ConfigArrayRandom = String.fromCharCode(0x00, 0x10, 0x01, 0x08, 0x00, 0x00, 0x08, 0x00, 0x00, 0x01, 0x00, 0x00);
var IDE_CD_Read = String.fromCharCode(0x00, 0x1E, 0x03, 0x00);
var IDE_CD_PowerManagement = String.fromCharCode(0x01, 0x00, 0x03, 0x00);
var IDE_CD_Timeout = String.fromCharCode(0x01, 0x05, 0x03, 0x00);
// 0x01 constant data
var IDE_ModeSence_FloppyError_Recovery_Array = String.fromCharCode(0x00, 0x12, 0x24, 0x80, 0x00, 0x00, 0x00, 0x00, 0x01, 0x0A, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00);
var IDE_ModeSence_Ls120Error_Recovery_Array = String.fromCharCode(0x00, 0x12, 0x31, 0x80, 0x00, 0x00, 0x00, 0x00, 0x01, 0x0A, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00);
var IDE_ModeSence_CDError_Recovery_Array = String.fromCharCode(0x00, 0x0E, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x01, 0x06, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00);
// Private method, called by parent when it change state
obj.xxStateChange = function (newstate) {
debug("IDER-StateChange", newstate);
if (newstate == 0) { obj.Stop(); }
if (newstate == 3) { obj.Start(); }
}
obj.diskSetup = function (floppyPath, cdromPath) {
debug(floppyPath, cdromPath);
// Setup floppy
if (floppyPath != null) {
try {
if (fs.existsSync(floppyPath) == false) { return 1; } // Floppy disk image does not exist
var stats = fs.statSync(floppyPath);
if ((stats.size % 512) != 0) { return 2; } // Invalid floppy disk image
obj.floppySize = stats.size;
obj.floppy = fs.openSync(floppyPath, 'r');
} catch (ex) { return 3; } // Unable to open floppy disk image
}
// Setup CDROM
if (cdromPath != null) {
try {
if (fs.existsSync(cdromPath) == false) { return 4; } // CDROM disk image does not exist
var stats = fs.statSync(cdromPath);
if ((stats.size % 512) != 0) { return 5; } // Invalid CDROM disk image
obj.cdromSize = stats.size;
obj.cdrom = fs.openSync(cdromPath, 'r');
} catch (ex) { return 6; } // Unable to open CDROM disk image
}
if ((obj.cdrom == null) && (obj.floppy == null)) { return 7; } // Can't do IDER with no disk images
return 0;
}
obj.Start = function () {
debug("IDER-Start");
// Get ready
obj.bytesToAmt = 0;
obj.bytesFromAmt = 0;
obj.inSequence = 0;
obj.outSequence = 0;
g_readQueue = [];
// Send first command, OPEN_SESSION
obj.SendCommand(0x40, webserver.common.ShortToStrX(obj.rx_timeout) + webserver.common.ShortToStrX(obj.tx_timeout) + webserver.common.ShortToStrX(obj.heartbeat) + webserver.common.IntToStrX(obj.version));
// Send sector stats
if (obj.sectorStats) {
obj.sectorStats(0, 0, obj.floppy ? (obj.floppySize >> 9) : 0);
obj.sectorStats(0, 1, obj.cdrom ? (obj.cdromSize >> 11) : 0);
}
}
obj.Stop = function () {
debug("IDER-Stop");
// Close the files
if (obj.floppy) { fs.close(obj.floppy); delete obj.floppy; }
if (obj.cdrom) { fs.close(obj.cdrom); delete obj.cdrom; }
// Clean up
obj.floppySize = 0;
obj.cdromSize = 0;
obj.floppyReady = false;
obj.cdromReady = false;
// Stop the redirection connection
obj.parent.Stop();
}
// Private method
obj.ProcessData = function (data) {
obj.bytesFromAmt += data.length;
obj.acc += data;
debug('IDER-ProcessData', obj.acc.length, webserver.common.rstr2hex(obj.acc));
// Process as many commands as possible
while (true) {
var len = obj.ProcessDataEx();
if (len == 0) return;
if (obj.inSequence != webserver.common.ReadIntX(obj.acc, 4)) {
debug('ERROR: Out of sequence', obj.inSequence, webserver.common.ReadIntX(obj.acc, 4));
obj.Stop();
return;
}
obj.inSequence++;
obj.acc = obj.acc.substring(len);
}
}
// Private method
obj.SendCommand = function (cmdid, data, completed, dma) {
if (data == null) { data = ''; }
var attributes = ((cmdid > 50) && (completed == true)) ? 2 : 0;
if (dma) { attributes += 1; }
var x = String.fromCharCode(cmdid, 0, 0, attributes) + webserver.common.IntToStrX(obj.outSequence++) + data;
obj.parent.xxSend(x);
obj.bytesToAmt += x.length;
if (cmdid != 0x4B) { debug('IDER-SendData', x.length, webserver.common.rstr2hex(x)); }
}
// CommandEndResponse (SCSI_SENSE)
obj.SendCommandEndResponse = function (error, sense, device, asc, asq) {
if (error) { obj.SendCommand(0x51, String.fromCharCode(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xc5, 0, 3, 0, 0, 0, device, 0x50, 0, 0, 0), true); }
else { obj.SendCommand(0x51, String.fromCharCode(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x87, (sense << 4), 3, 0, 0, 0, device, 0x51, sense, asc, asq), true); }
}
// DataToHost (SCSI_READ)
obj.SendDataToHost = function (device, completed, data, dma) {
var dmalen = (dma) ? 0 : data.length;
if (completed == true) {
obj.SendCommand(0x54, String.fromCharCode(0, (data.length & 0xff), (data.length >> 8), 0, dma ? 0xb4 : 0xb5, 0, 2, 0, (dmalen & 0xff), (dmalen >> 8), device, 0x58, 0x85, 0, 3, 0, 0, 0, device, 0x50, 0, 0, 0, 0, 0, 0) + data, completed, dma);
} else {
obj.SendCommand(0x54, String.fromCharCode(0, (data.length & 0xff), (data.length >> 8), 0, dma ? 0xb4 : 0xb5, 0, 2, 0, (dmalen & 0xff), (dmalen >> 8), device, 0x58, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) + data, completed, dma);
}
}
// GetDataFromHost (SCSI_CHUNK)
obj.SendGetDataFromHost = function (device, chunksize) {
obj.SendCommand(0x52, String.fromCharCode(0, (chunksize & 0xff), (chunksize >> 8), 0, 0xb5, 0, 0, 0, (chunksize & 0xff), (chunksize >> 8), device, 0x58, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0), false);
}
// DisableEnableFeatures (STATUS_DATA)
// If type is REGS_TOGGLE (3), 4 bytes of data must be provided.
obj.SendDisableEnableFeatures = function (type, data) { if (data == null) { data = ''; } obj.SendCommand(0x48, String.fromCharCode(type) + data); }
// Private method
obj.ProcessDataEx = function () {
if (obj.acc.length < 8) return 0;
// First 8 bytes are the header
// CommandID + 0x000000 + Sequence Number
switch(obj.acc.charCodeAt(0)) {
case 0x41: // OPEN_SESSION
if (obj.acc.length < 30) return 0;
var len = obj.acc.charCodeAt(29);
if (obj.acc.length < (30 + len)) return 0;
obj.iderinfo = {};
obj.iderinfo.major = obj.acc.charCodeAt(8);
obj.iderinfo.minor = obj.acc.charCodeAt(9);
obj.iderinfo.fwmajor = obj.acc.charCodeAt(10);
obj.iderinfo.fwminor = obj.acc.charCodeAt(11);
obj.iderinfo.readbfr = webserver.common.ReadShortX(obj.acc, 16);
obj.iderinfo.writebfr = webserver.common.ReadShortX(obj.acc, 18);
obj.iderinfo.proto = obj.acc.charCodeAt(21);
obj.iderinfo.iana = webserver.common.ReadIntX(obj.acc, 25);
debug(obj.iderinfo);
if (obj.iderinfo.proto != 0) {
debug("Unknown proto", obj.iderinfo.proto);
obj.Stop();
}
if (obj.iderinfo.readbfr > 8192) {
debug("Illegal read buffer size", obj.iderinfo.readbfr);
obj.Stop();
}
if (obj.iderinfo.writebfr > 8192) {
debug("Illegal write buffer size", obj.iderinfo.writebfr);
obj.Stop();
}
if (obj.iderStart == 0) { obj.SendDisableEnableFeatures(3, webserver.common.IntToStrX(0x01 + 0x08)); } // OnReboot
else if (obj.iderStart == 1) { obj.SendDisableEnableFeatures(3, webserver.common.IntToStrX(0x01 + 0x10)); } // Graceful
else if (obj.iderStart == 2) { obj.SendDisableEnableFeatures(3, webserver.common.IntToStrX(0x01 + 0x18)); } // Now
//obj.SendDisableEnableFeatures(1); // GetSupportedFeatures
return 30 + len;
case 0x43: // CLOSE
debug('CLOSE');
obj.Stop();
return 8;
case 0x44: // KEEPALIVEPING
obj.SendCommand(0x45); // Send PONG back
return 8;
case 0x45: // KEEPALIVEPONG
debug('PONG');
return 8;
case 0x46: // RESETOCCURED
if (obj.acc.length < 9) return 0;
var resetMask = obj.acc.charCodeAt(8);
if (g_media === null) {
// No operations are pending
obj.SendCommand(0x47); // Send ResetOccuredResponse
debug('RESETOCCURED1', resetMask);
} else {
// Operations are being done, sent the reset once completed.
g_reset = true;
debug('RESETOCCURED2', resetMask);
}
return 9;
case 0x49: // STATUS_DATA - DisableEnableFeaturesReply
if (obj.acc.length < 13) return 0;
var type = obj.acc.charCodeAt(8);
var value = webserver.common.ReadIntX(obj.acc, 9);
debug('STATUS_DATA', type, value);
switch (type)
{
case 1: // REGS_AVAIL
if (value & 1) {
if (obj.iderStart == 0) { obj.SendDisableEnableFeatures(3, webserver.common.IntToStrX(0x01 + 0x08)); } // OnReboot
else if (obj.iderStart == 1) { obj.SendDisableEnableFeatures(3, webserver.common.IntToStrX(0x01 + 0x10)); } // Graceful
else if (obj.iderStart == 2) { obj.SendDisableEnableFeatures(3, webserver.common.IntToStrX(0x01 + 0x18)); } // Now
}
break;
case 2: // REGS_STATUS
obj.enabled = (value & 2) ? true : false;
debug("IDER Status: " + obj.enabled);
break;
case 3: // REGS_TOGGLE
if (value != 1) {
debug("Register toggle failure");
} //else { obj.SendDisableEnableFeatures(2); }
break;
}
return 13;
case 0x4A: // ERROR OCCURED
if (obj.acc.length < 11) return 0;
debug('IDER: ABORT', obj.acc.charCodeAt(8));
//obj.Stop();
return 11;
case 0x4B: // HEARTBEAT
//debug('HEARTBEAT');
return 8;
case 0x50: // COMMAND WRITTEN
if (obj.acc.length < 28) return 0;
var device = (obj.acc.charCodeAt(14) & 0x10) ? 0xB0 : 0xA0;
var deviceFlags = obj.acc.charCodeAt(14);
var cdb = obj.acc.substring(16, 28);
var featureRegister = obj.acc.charCodeAt(9);
debug('SCSI_CMD', device, webserver.common.rstr2hex(cdb), featureRegister, deviceFlags);
handleSCSI(device, cdb, featureRegister, deviceFlags);
return 28;
case 0x53: // DATA FROM HOST
if (obj.acc.length < 14) return 0;
var len = webserver.common.ReadShortX(obj.acc, 9);
if (obj.acc.length < (14 + len)) return 0;
debug('SCSI_WRITE, len = ' + (14 + len));
obj.SendCommand(0x51, String.fromCharCode(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x87, 0x70, 0x03, 0x00, 0x00, 0x00, 0xa0, 0x51, 0x07, 0x27, 0x00), true);
return 14 + len;
default:
debug('Unknown IDER command', obj.acc[0]);
obj.Stop();
break;
}
return 0;
}
function handleSCSI(dev, cdb, featureRegister, deviceFlags)
{
var lba;
var len;
switch(cdb.charCodeAt(0))
{
case 0x00: // TEST_UNIT_READY:
debug("SCSI: TEST_UNIT_READY", dev);
switch (dev) {
case 0xA0: // DEV_FLOPPY
if (obj.floppy == null) { obj.SendCommandEndResponse(1, 0x02, dev, 0x3a, 0x00); return -1; }
if (obj.floppyReady == false) { obj.floppyReady = true; obj.SendCommandEndResponse(1, 0x06, dev, 0x28, 0x00); return -1; } // Switch to ready
break;
case 0xB0: // DEV_CDDVD
if (obj.cdrom == null) { obj.SendCommandEndResponse(1, 0x02, dev, 0x3a, 0x00); return -1; }
if (obj.cdromReady == false) { obj.cdromReady = true; obj.SendCommandEndResponse(1, 0x06, dev, 0x28, 0x00); return -1; } // Switch to ready
break;
default:
debug("SCSI Internal error 3", dev);
return -1;
}
obj.SendCommandEndResponse(1, 0x00, dev, 0x00, 0x00); // Indicate ready
break;
case 0x08: // READ_6
lba = ((cdb.charCodeAt(1) & 0x1f) << 16) + (cdb.charCodeAt(2) << 8) + cdb.charCodeAt(3);
len = cdb.charCodeAt(4);
if (len == 0) { len = 256; }
debug("SCSI: READ_6", dev, lba, len);
sendDiskData(dev, lba, len, featureRegister);
break;
case 0x0a: // WRITE_6
lba = ((cdb.charCodeAt(1) & 0x1f) << 16) + (cdb.charCodeAt(2) << 8) + cdb.charCodeAt(3);
len = cdb.charCodeAt(4);
if (len == 0) { len = 256; }
debug("SCSI: WRITE_6", dev, lba, len);
obj.SendCommandEndResponse(1, 0x02, dev, 0x3a, 0x00); // Write is not supported, remote no medium.
return -1;
/*
case 0x15: // MODE_SELECT_6:
debug("SCSI ERROR: MODE_SELECT_6", dev);
obj.SendCommandEndResponse(1, 0x05, dev, 0x20, 0x00);
return -1;
*/
case 0x1a: // MODE_SENSE_6
debug("SCSI: MODE_SENSE_6", dev);
if ((cdb.charCodeAt(2) == 0x3f) && (cdb.charCodeAt(3) == 0x00)) {
var a = 0, b = 0;
switch (dev) {
case 0xA0: // DEV_FLOPPY
if (obj.floppy == null) { obj.SendCommandEndResponse(1, 0x02, dev, 0x3a, 0x00); return -1; }
a = 0x00;
b = 0x80; // Read only = 0x80, Read write = 0x00
break;
case 0xB0: // DEV_CDDVD
if (obj.cdrom == null) { obj.SendCommandEndResponse(1, 0x02, dev, 0x3a, 0x00); return -1; }
a = 0x05;
b = 0x80;
break;
default:
debug("SCSI Internal error 6", dev);
return -1;
}
obj.SendDataToHost(dev, true, String.fromCharCode(0, a, b, 0), featureRegister & 1);
return;
}
obj.SendCommandEndResponse(1, 0x05, dev, 0x24, 0x00);
break;
case 0x1b: // START_STOP (Called when you eject the CDROM)
//var immediate = cdb.charCodeAt(1) & 0x01;
//var loej = cdb.charCodeAt(4) & 0x02;
//var start = cdb.charCodeAt(4) & 0x01;
obj.SendCommandEndResponse(1, 0, dev);
break;
case 0x1e: // LOCK_UNLOCK - ALLOW_MEDIUM_REMOVAL
debug("SCSI: ALLOW_MEDIUM_REMOVAL", dev);
if ((dev == 0xA0) && (obj.floppy == null)) { obj.SendCommandEndResponse(1, 0x02, dev, 0x3a, 0x00); return -1; }
if ((dev == 0xB0) && (obj.cdrom == null)) { obj.SendCommandEndResponse(1, 0x02, dev, 0x3a, 0x00); return -1; }
obj.SendCommandEndResponse(1, 0x00, dev, 0x00, 0x00);
break;
case 0x23: // READ_FORMAT_CAPACITIES (Floppy only)
debug("SCSI: READ_FORMAT_CAPACITIES", dev);
var buflen = webserver.common.ReadShort(cdb, 7);
var mediaStatus = 0, sectors;
var mcSize = buflen / 8; // Capacity descriptor size is 8
switch (dev) {
case 0xA0: // DEV_FLOPPY
if ((obj.floppy == null) || (obj.floppySize == 0)) { obj.SendCommandEndResponse(0, 0x05, dev, 0x24, 0x00); return -1; }
sectors = (obj.floppySize >> 9) - 1;
break;
case 0xB0: // DEV_CDDVD
if ((obj.cdrom == null) || (obj.cdromSize == 0)) { obj.SendCommandEndResponse(0, 0x05, dev, 0x24, 0x00); return -1; }
sectors = (obj.cdromSize >> 11) - 1; // Number 2048 byte blocks
break;
default:
debug("SCSI Internal error 4", dev);
return -1;
}
obj.SendDataToHost(dev, true, webserver.common.IntToStr(8) + String.fromCharCode(0x00, 0x00, 0x0b, 0x40, 0x02, 0x00, 0x02, 0x00), featureRegister & 1);
break;
case 0x25: // READ_CAPACITY
debug("SCSI: READ_CAPACITY", dev);
var len = 0;
switch(dev)
{
case 0xA0: // DEV_FLOPPY
if ((obj.floppy == null) || (obj.floppySize == 0)) { obj.SendCommandEndResponse(0, 0x02, dev, 0x3a, 0x00); return -1; }
if (obj.floppy != null) { len = (obj.floppySize >> 9) - 1; }
debug('DEV_FLOPPY', len); // Number 512 byte blocks
break;
case 0xB0: // DEV_CDDVD
if ((obj.floppy == null) || (obj.floppySize == 0)) { obj.SendCommandEndResponse(0, 0x02, dev, 0x3a, 0x00); return -1; }
if (obj.cdrom != null) { len = (obj.cdromSize >> 11) - 1; } // Number 2048 byte blocks
debug('DEV_CDDVD', len);
break;
default:
debug("SCSI Internal error 4", dev);
return -1;
}
//if (dev == 0xA0) { dev = 0x00; } else { dev = 0x10; } // Weird but seems to work.
debug("SCSI: READ_CAPACITY2", dev, deviceFlags);
obj.SendDataToHost(deviceFlags, true, webserver.common.IntToStr(len) + String.fromCharCode(0, 0, ((dev == 0xB0) ? 0x08 : 0x02), 0), featureRegister & 1);
break;
case 0x28: // READ_10
lba = webserver.common.ReadInt(cdb, 2);
len = webserver.common.ReadShort(cdb, 7);
debug("SCSI: READ_10", dev, lba, len);
sendDiskData(dev, lba, len, featureRegister);
break;
case 0x2a: // WRITE_10 (Floppy only)
case 0x2e: // WRITE_AND_VERIFY (Floppy only)
lba = webserver.common.ReadInt(cdb, 2);
len = webserver.common.ReadShort(cdb, 7);
debug("SCSI: WRITE_10", dev, lba, len);
obj.SendGetDataFromHost(dev, 512 * len); // Floppy writes only, accept sectors of 512 bytes
break;
case 0x43: // READ_TOC (CD Audio only)
var buflen = webserver.common.ReadShort(cdb, 7);
var msf = cdb.charCodeAt(1) & 0x02;
var format = cdb.charCodeAt(2) & 0x07;
if (format == 0) { format = cdb.charCodeAt(9) >> 6; }
debug("SCSI: READ_TOC, dev=" + dev + ", buflen=" + buflen + ", msf=" + msf + ", format=" + format);
switch (dev) {
case 0xA0: // DEV_FLOPPY
obj.SendCommandEndResponse(1, 0x05, dev, 0x20, 0x00); // Not implemented
return -1;
case 0xB0: // DEV_CDDVD
// NOP
break;
default:
debug("SCSI Internal error 9", dev);
return -1;
}
if (format == 1) { obj.SendDataToHost(dev, true, String.fromCharCode(0x00, 0x0a, 0x01, 0x01, 0x00, 0x14, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00), featureRegister & 1); }
else if (format == 0) {
if (msf) {
obj.SendDataToHost(dev, true, String.fromCharCode(0x00, 0x12, 0x01, 0x01, 0x00, 0x14, 0x01, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x14, 0xaa, 0x00, 0x00, 0x00, 0x34, 0x13), featureRegister & 1);
} else {
obj.SendDataToHost(dev, true, String.fromCharCode(0x00, 0x12, 0x01, 0x01, 0x00, 0x14, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14, 0xaa, 0x00, 0x00, 0x00, 0x00, 0x00), featureRegister & 1);
}
}
break;
case 0x46: // GET_CONFIGURATION
var sendall = (cdb.charCodeAt(1) != 2);
var firstcode = webserver.common.ReadShort(cdb, 2);
var buflen = webserver.common.ReadShort(cdb, 7);
debug("SCSI: GET_CONFIGURATION", dev, sendall, firstcode, buflen);
if (buflen == 0) { obj.SendDataToHost(dev, true, webserver.common.IntToStr(0x003c) + webserver.common.IntToStr(0x0008), featureRegister & 1); return -1; } // TODO: Fixed this return, it's not correct.
// Set the header
var r = webserver.common.IntToStr(0x0008);
// Add the data
if (firstcode == 0) { r += IDE_CD_ConfigArrayProfileList; }
if ((firstcode == 0x1) || (sendall && (firstcode < 0x1))) { r += IDE_CD_ConfigArrayCore; }
if ((firstcode == 0x2) || (sendall && (firstcode < 0x2))) { r += IDE_CD_Morphing; }
if ((firstcode == 0x3) || (sendall && (firstcode < 0x3))) { r += IDE_CD_ConfigArrayRemovable; }
if ((firstcode == 0x10) || (sendall && (firstcode < 0x10))) { r += IDE_CD_ConfigArrayRandom; }
if ((firstcode == 0x1E) || (sendall && (firstcode < 0x1E))) { r += IDE_CD_Read; }
if ((firstcode == 0x100) || (sendall && (firstcode < 0x100))) { r += IDE_CD_PowerManagement; }
if ((firstcode == 0x105) || (sendall && (firstcode < 0x105))) { r += IDE_CD_Timeout; }
// Set the length
r = webserver.common.IntToStr(r.length) + r;
// Cut the length to buflen if needed
if (r.length > buflen) { r = r.substring(0, buflen); }
obj.SendDataToHost(dev, true, r, featureRegister & 1);
return -1;
case 0x4a: // GET_EV_STATUS - GET_EVENT_STATUS_NOTIFICATION
//var buflen = (cdb.charCodeAt(7) << 8) + cdb.charCodeAt(8);
//if (buflen == 0) { obj.SendDataToHost(dev, true, webserver.common.IntToStr(0x003c) + webserver.common.IntToStr(0x0008), featureRegister & 1); return -1; } // TODO: Fixed this return, it's not correct.
debug("SCSI: GET_EVENT_STATUS_NOTIFICATION", dev, cdb.charCodeAt(1), cdb.charCodeAt(4), cdb.charCodeAt(9));
if ((cdb.charCodeAt(1) != 0x01) && (cdb.charCodeAt(4) != 0x10)) {
debug('SCSI ERROR');
obj.SendCommandEndResponse(1, 0x05, dev, 0x26, 0x01);
break;
}
var present = 0x00;
if ((dev == 0xA0) && (obj.floppy != null)) { present = 0x02; }
else if ((dev == 0xB0) && (obj.cdrom != null)) { present = 0x02; }
obj.SendDataToHost(dev, true, String.fromCharCode(0x00, present, 0x80, 0x00), featureRegister & 1); // This is the original version, 4 bytes long
break;
case 0x4c:
obj.SendCommand(0x51, webserver.common.IntToStrX(0) + webserver.common.IntToStrX(0) + webserver.common.IntToStrX(0) + String.fromCharCode(0x87, 0x50, 0x03, 0x00, 0x00, 0x00, 0xb0, 0x51, 0x05, 0x20, 0x00), true);
break;
case 0x51: // READ_DISC_INFO
debug("SCSI READ_DISC_INFO", dev);
obj.SendCommandEndResponse(0, 0x05, dev, 0x20, 0x00); // Correct
return -1;
case 0x55: // MODE_SELECT_10:
debug("SCSI ERROR: MODE_SELECT_10", dev);
obj.SendCommandEndResponse(1, 0x05, dev, 0x20, 0x00);
return -1;
case 0x5a: // MODE_SENSE_10
debug("SCSI: MODE_SENSE_10", dev, cdb.charCodeAt(2) & 0x3f);
var buflen = webserver.common.ReadShort(cdb, 7);
//var pc = cdb.charCodeAt(2) & 0xc0;
var r = null;
if (buflen == 0) { obj.SendDataToHost(dev, true, webserver.common.IntToStr(0x003c) + webserver.common.IntToStr(0x0008), featureRegister & 1); return -1; } // TODO: Fixed this return, it's not correct.
// 1.44 mb floppy or LS120 (sectorCount == 0x3c300)
var sectorCount = 0;
if (dev == 0xA0) {
if (obj.floppy != null) { sectorCount = (obj.floppySize >> 9); }
} else {
if (obj.cdrom != null) { sectorCount = (obj.cdromSize >> 11); }
}
switch (cdb.charCodeAt(2) & 0x3f) {
case 0x01: if (dev == 0xA0) { r = (sectorCount <= 0xb40)?IDE_ModeSence_FloppyError_Recovery_Array:IDE_ModeSence_Ls120Error_Recovery_Array; } else { r = IDE_ModeSence_CDError_Recovery_Array; } break;
case 0x05: if (dev == 0xA0) { r = (sectorCount <= 0xb40)?IDE_ModeSence_FloppyDisk_Page_Array:IDE_ModeSence_LS120Disk_Page_Array; } break;
case 0x3f: if (dev == 0xA0) { r = (sectorCount <= 0xb40)?IDE_ModeSence_3F_Floppy_Array:IDE_ModeSence_3F_LS120_Array; } else { r = IDE_ModeSence_3F_CD_Array; } break;
case 0x1A: if (dev == 0xB0) { r = IDE_ModeSence_CD_1A_Array; } break;
case 0x1D: if (dev == 0xB0) { r = IDE_ModeSence_CD_1D_Array; } break;
case 0x2A: if (dev == 0xB0) { r = IDE_ModeSence_CD_2A_Array; } break;
}
if (r == null) {
obj.SendCommandEndResponse(0, 0x05, dev, 0x20, 0x00); // TODO: Send proper error!!!
} else {
// Set disk to read only (we don't support write).
//ms_data[3] = ms_data[3] | 0x80;
obj.SendDataToHost(dev, true, r, featureRegister & 1);
}
break;
default: // UNKNOWN COMMAND
debug("IDER: Unknown SCSI command", cdb.charCodeAt(0));
obj.SendCommandEndResponse(0, 0x05, dev, 0x20, 0x00);
return -1;
}
return 0;
}
function sendDiskData(dev, lba, len, featureRegister) {
var media = null;
var mediaBlocks = 0;
if (dev == 0xA0) { media = obj.floppy; if (obj.floppy != null) { mediaBlocks = (obj.floppySize >> 9); } }
if (dev == 0xB0) { media = obj.cdrom; if (obj.cdrom != null) { mediaBlocks = (obj.cdromSize >> 11); } }
if ((len < 0) || (lba + len > mediaBlocks)) { obj.SendCommandEndResponse(1, 0x05, dev, 0x21, 0x00); return 0; }
if (len == 0) { obj.SendCommandEndResponse(1, 0x00, dev, 0x00, 0x00); return 0; }
if (media != null) {
// Send sector stats
if (obj.sectorStats) { obj.sectorStats(1, (dev == 0xA0) ? 0 : 1, mediaBlocks, lba, len); }
if (dev == 0xA0) { lba <<= 9; len <<= 9; } else { lba <<= 11; len <<= 11; }
if (g_media !== null) {
// Queue read operation
g_readQueue.push({ media: media, dev: dev, lba: lba, len: len, fr: featureRegister });
} else {
// obj.iderinfo.readbfr // TODO: MaxRead
g_media = media;
g_dev = dev;
g_lba = lba;
g_len = len;
sendDiskDataEx(featureRegister);
}
}
}
var g_readQueue = [], g_dev, g_lba, g_len, g_media = null, g_reset = false;
function sendDiskDataEx(featureRegister) {
var len = g_len, lba = g_lba;
if (g_len > obj.iderinfo.readbfr) { len = obj.iderinfo.readbfr; }
g_len -= len;
g_lba += len;
var buffer = Buffer.alloc(len);
fs.read(g_media, buffer, 0, len, lba, function (error, bytesRead, buffer) {
obj.SendDataToHost(g_dev, (g_len == 0), buffer.toString('binary'), featureRegister & 1);
if ((g_len > 0) && (g_reset == false)) {
sendDiskDataEx(featureRegister);
} else {
g_media = null;
if (g_reset) { obj.SendCommand(0x47); g_readQueue = []; g_reset = false; } // Send ResetOccuredResponse
else if (g_readQueue.length > 0) { var op = g_readQueue.shift(); g_media = op.media; g_dev = op.dev; g_lba = op.lba; g_len = op.len; sendDiskDataEx(op.fr); } // Un-queue read operation
}
});
}
return obj;
}