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MeshCentral/amt/amt-ider-module.js
Ylian Saint-Hilaire bfd7b8ba41 Added server-side IDER over CIRA support.
2019-04-25 15:13:32 -07:00

625 lines
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/**
* @description IDER Handling Module
* @author Ylian Saint-Hilaire
* @version v0.0.2
*/
// 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 = new Buffer(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;
}
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