mirror of
https://github.com/Ylianst/MeshCentral.git
synced 2024-11-27 11:57:45 +03:00
601 lines
34 KiB
JavaScript
601 lines
34 KiB
JavaScript
|
/**
|
||
|
|
* @description IDER Handling Module
|
||
|
|
* @author Ylian Saint-Hilaire
|
||
|
|
*/
|
||
|
|
|
||
|
|
// meshservice meshcmd.js amtider --host 192.168.2.186 --pass P@ssw0rd --floppy msdos.img
|
||
|
|
|
||
|
|
// Construct a Intel AMT IDER object
|
||
|
|
module.exports = function CreateAmtRemoteIder() {
|
||
|
|
var obj = {};
|
||
|
|
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 = null;
|
||
|
|
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.floppyReady = false;
|
||
|
|
obj.cdromReady = false;
|
||
|
|
//obj.pingTimer = null;
|
||
|
|
obj.sectorStats = null;
|
||
|
|
obj.debug = false;
|
||
|
|
|
||
|
|
// Mode Sense
|
||
|
|
var IDE_ModeSence_LS120Disk_Page_Array = new Buffer([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 = new Buffer([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 = new Buffer([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 = new Buffer([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 = new Buffer([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 = new Buffer([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 = new Buffer([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 = new Buffer([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 = new Buffer([0x00, 0x0E, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x01, 0x06, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00]);
|
||
|
|
var IDE_ModeSence_3F_CD_Array = new Buffer([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 = new Buffer([0x00, 0x00,0x00, 0x28, 0x00, 0x00, 0x00, 0x08]);
|
||
|
|
var IDE_CD_ConfigArrayProfileList = new Buffer([0x00, 0x00, 0x03, 0x04, 0x00, 0x08, 0x01, 0x00]);
|
||
|
|
var IDE_CD_ConfigArrayCore = new Buffer([0x00, 0x01, 0x03, 0x04, 0x00, 0x00, 0x00, 0x02]);
|
||
|
|
var IDE_CD_Morphing = new Buffer([0x00, 0x02, 0x03, 0x04, 0x00, 0x00, 0x00, 0x00]);
|
||
|
|
var IDE_CD_ConfigArrayRemovable = new Buffer([0x00, 0x03, 0x03, 0x04, 0x29, 0x00, 0x00, 0x02]);
|
||
|
|
var IDE_CD_ConfigArrayRandom = new Buffer([0x00, 0x10, 0x01, 0x08, 0x00, 0x00, 0x08, 0x00, 0x00, 0x01, 0x00, 0x00]);
|
||
|
|
var IDE_CD_Read = new Buffer([0x00, 0x1E, 0x03, 0x00]);
|
||
|
|
var IDE_CD_PowerManagement = new Buffer([0x01, 0x00, 0x03, 0x00]);
|
||
|
|
var IDE_CD_Timeout = new Buffer([0x01, 0x05, 0x03, 0x00]);
|
||
|
|
|
||
|
|
// 0x01 constant data
|
||
|
|
var IDE_ModeSence_FloppyError_Recovery_Array = new Buffer([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 = new Buffer([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 = new Buffer([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) {
|
||
|
|
if (obj.debug) console.log("IDER-StateChange", newstate);
|
||
|
|
if (newstate == 0) { obj.Stop(); }
|
||
|
|
if (newstate == 3) { obj.Start(); }
|
||
|
|
}
|
||
|
|
|
||
|
|
obj.Start = function () {
|
||
|
|
if (obj.debug) { console.log("IDER-Start"); console.log(obj.floppy, obj.cdrom); }
|
||
|
|
obj.bytesToAmt = 0;
|
||
|
|
obj.bytesFromAmt = 0;
|
||
|
|
obj.inSequence = 0;
|
||
|
|
obj.outSequence = 0;
|
||
|
|
g_readQueue = [];
|
||
|
|
|
||
|
|
// Send first command, OPEN_SESSION
|
||
|
|
obj.SendCommand(0x40, Buffer.concat([ ShortToStrX(obj.rx_timeout), ShortToStrX(obj.tx_timeout), ShortToStrX(obj.heartbeat), IntToStrX(obj.version) ]));
|
||
|
|
|
||
|
|
// Send sector stats
|
||
|
|
if (obj.sectorStats) {
|
||
|
|
obj.sectorStats(0, 0, obj.floppy ? (obj.floppy.size >> 9) : 0);
|
||
|
|
obj.sectorStats(0, 1, obj.cdrom ? (obj.cdrom.size >> 11) : 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Setup the ping timer
|
||
|
|
//obj.pingTimer = setInterval(function () { obj.SendCommand(0x44); }, 5000);
|
||
|
|
}
|
||
|
|
|
||
|
|
obj.Stop = function () {
|
||
|
|
if (obj.debug) console.log("IDER-Stop");
|
||
|
|
//if (obj.pingTimer) { clearInterval(obj.pingTimer); obj.pingTimer = null; }
|
||
|
|
obj.parent.Stop();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Private method
|
||
|
|
obj.ProcessData = function (data) {
|
||
|
|
obj.bytesFromAmt += data.length;
|
||
|
|
if (obj.acc == null) { obj.acc = data; } else { obj.acc = Buffer.concat(obj.acc, data); }
|
||
|
|
if (obj.debug) console.log('IDER-ProcessData', obj.acc.length, obj.acc.toString('hex'));
|
||
|
|
|
||
|
|
// Process as many commands as possible
|
||
|
|
while (obj.acc != null) {
|
||
|
|
var len = obj.ProcessDataEx();
|
||
|
|
if (len == 0) return;
|
||
|
|
if (obj.inSequence != ReadIntX(obj.acc, 4)) {
|
||
|
|
if (obj.debug) console.log('ERROR: Out of sequence', obj.inSequence, ReadIntX(obj.acc, 4));
|
||
|
|
obj.Stop();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
obj.inSequence++;
|
||
|
|
if (len == obj.acc.length) { obj.acc = null; } else { obj.acc = obj.acc.slice(len); }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Private method
|
||
|
|
obj.SendCommand = function (cmdid, data, completed, dma) {
|
||
|
|
if (data == null) { data = new Buffer(0); }
|
||
|
|
var attributes = ((cmdid > 50) && (completed == true)) ? 2 : 0;
|
||
|
|
if (dma) { attributes += 1; }
|
||
|
|
var x = Buffer.concat([Buffer([cmdid, 0, 0, attributes]), IntToStrX(obj.outSequence++), data]);
|
||
|
|
obj.parent.xxSend(x);
|
||
|
|
obj.bytesToAmt += x.length;
|
||
|
|
//if (cmdid != 0x4B) { console.log('IDER-SendData', x.length, x.toString('hex')); }
|
||
|
|
}
|
||
|
|
|
||
|
|
// CommandEndResponse (SCSI_SENSE)
|
||
|
|
obj.SendCommandEndResponse = function (error, sense, device, asc, asq) {
|
||
|
|
if (error) { obj.SendCommand(0x51, new Buffer([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, new Buffer([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, Buffer.concat([new Buffer([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, Buffer.concat([new Buffer([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, new Buffer([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, Buffer.concat([new Buffer([type]), data])); }
|
||
|
|
|
||
|
|
// Private method
|
||
|
|
obj.ProcessDataEx = function () {
|
||
|
|
if (obj.acc.length < 8) return 0;
|
||
|
|
|
||
|
|
// First 8 bytes are the header
|
||
|
|
// CommandID + 0x000000 + Sequence Number
|
||
|
|
//console.log('ProcessDataEx', obj.acc[0]);
|
||
|
|
|
||
|
|
switch(obj.acc[0]) {
|
||
|
|
case 0x41: // OPEN_SESSION
|
||
|
|
if (obj.acc.length < 30) return 0;
|
||
|
|
var len = obj.acc[29];
|
||
|
|
if (obj.acc.length < (30 + len)) return 0;
|
||
|
|
obj.iderinfo = {};
|
||
|
|
obj.iderinfo.major = obj.acc[8];
|
||
|
|
obj.iderinfo.minor = obj.acc[9];
|
||
|
|
obj.iderinfo.fwmajor = obj.acc[10];
|
||
|
|
obj.iderinfo.fwminor = obj.acc[11];
|
||
|
|
obj.iderinfo.readbfr = ReadShortX(obj.acc, 16);
|
||
|
|
obj.iderinfo.writebfr = ReadShortX(obj.acc, 18);
|
||
|
|
obj.iderinfo.proto = obj.acc[21];
|
||
|
|
obj.iderinfo.iana = ReadIntX(obj.acc, 25);
|
||
|
|
if (obj.debug) console.log(obj.iderinfo);
|
||
|
|
|
||
|
|
if (obj.iderinfo.proto != 0) {
|
||
|
|
if (obj.debug) console.log("Unknown proto", obj.iderinfo.proto);
|
||
|
|
obj.Stop();
|
||
|
|
}
|
||
|
|
if (obj.iderinfo.readbfr > 8192) {
|
||
|
|
if (obj.debug) console.log("Illegal read buffer size", obj.iderinfo.readbfr);
|
||
|
|
obj.Stop();
|
||
|
|
}
|
||
|
|
if (obj.iderinfo.writebfr > 8192) {
|
||
|
|
if (obj.debug) console.log("Illegal write buffer size", obj.iderinfo.writebfr);
|
||
|
|
obj.Stop();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (obj.iderStart == 0) { obj.SendDisableEnableFeatures(3, IntToStrX(0x01 + 0x08)); } // OnReboot
|
||
|
|
else if (obj.iderStart == 1) { obj.SendDisableEnableFeatures(3, IntToStrX(0x01 + 0x10)); } // Graceful
|
||
|
|
else if (obj.iderStart == 2) { obj.SendDisableEnableFeatures(3, IntToStrX(0x01 + 0x18)); } // Now
|
||
|
|
//obj.SendDisableEnableFeatures(1); // GetSupportedFeatures
|
||
|
|
return 30 + len;
|
||
|
|
case 0x43: // CLOSE
|
||
|
|
if (obj.debug) console.log('CLOSE');
|
||
|
|
obj.Stop();
|
||
|
|
return 8;
|
||
|
|
case 0x44: // KEEPALIVEPING
|
||
|
|
obj.SendCommand(0x45); // Send PONG back
|
||
|
|
return 8;
|
||
|
|
case 0x45: // KEEPALIVEPONG
|
||
|
|
if (obj.debug) console.log('PONG');
|
||
|
|
return 8;
|
||
|
|
case 0x46: // RESETOCCURED
|
||
|
|
if (obj.acc.length < 9) return 0;
|
||
|
|
var resetMask = obj.acc[8];
|
||
|
|
if (g_media === null) {
|
||
|
|
// No operations are pending
|
||
|
|
obj.SendCommand(0x47); // Send ResetOccuredResponse
|
||
|
|
if (obj.debug) console.log('RESETOCCURED1', resetMask);
|
||
|
|
} else {
|
||
|
|
// Operations are being done, sent the reset once completed.
|
||
|
|
g_reset = true;
|
||
|
|
if (obj.debug) console.log('RESETOCCURED2', resetMask);
|
||
|
|
}
|
||
|
|
return 9;
|
||
|
|
case 0x49: // STATUS_DATA - DisableEnableFeaturesReply
|
||
|
|
if (obj.acc.length < 13) return 0;
|
||
|
|
var type = obj.acc[8];
|
||
|
|
var value = ReadIntX(obj.acc, 9);
|
||
|
|
if (obj.debug) console.log('STATUS_DATA', type, value);
|
||
|
|
switch (type)
|
||
|
|
{
|
||
|
|
case 1: // REGS_AVAIL
|
||
|
|
if (value & 1) {
|
||
|
|
if (obj.iderStart == 0) { obj.SendDisableEnableFeatures(3, IntToStrX(0x01 + 0x08)); } // OnReboot
|
||
|
|
else if (obj.iderStart == 1) { obj.SendDisableEnableFeatures(3, IntToStrX(0x01 + 0x10)); } // Graceful
|
||
|
|
else if (obj.iderStart == 2) { obj.SendDisableEnableFeatures(3, IntToStrX(0x01 + 0x18)); } // Now
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case 2: // REGS_STATUS
|
||
|
|
obj.enabled = (value & 2) ? true : false;
|
||
|
|
if (obj.debug) console.log("IDER Status: " + obj.enabled);
|
||
|
|
break;
|
||
|
|
case 3: // REGS_TOGGLE
|
||
|
|
if (value != 1) {
|
||
|
|
if (obj.debug) console.log("Register toggle failure");
|
||
|
|
} //else { obj.SendDisableEnableFeatures(2); }
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return 13;
|
||
|
|
case 0x4A: // ERROR OCCURED
|
||
|
|
if (obj.acc.length < 11) return 0;
|
||
|
|
if (obj.debug) console.log('IDER: ABORT', obj.acc[8]);
|
||
|
|
//obj.Stop();
|
||
|
|
return 11;
|
||
|
|
case 0x4B: // HEARTBEAT
|
||
|
|
//console.log('HEARTBEAT');
|
||
|
|
return 8;
|
||
|
|
case 0x50: // COMMAND WRITTEN
|
||
|
|
if (obj.acc.length < 28) return 0;
|
||
|
|
var device = (obj.acc[14] & 0x10) ? 0xB0 : 0xA0;
|
||
|
|
var deviceFlags = obj.acc[14];
|
||
|
|
var cdb = obj.acc.slice(16, 28);
|
||
|
|
var featureRegister = obj.acc[9];
|
||
|
|
if (obj.debug) console.log('SCSI_CMD', device, cdb.toString('hex'), featureRegister, deviceFlags);
|
||
|
|
handleSCSI(device, cdb, featureRegister, deviceFlags);
|
||
|
|
return 28;
|
||
|
|
case 0x53: // DATA FROM HOST
|
||
|
|
if (obj.acc.length < 14) return 0;
|
||
|
|
var len = ReadShortX(obj.acc, 9);
|
||
|
|
if (obj.acc.length < (14 + len)) return 0;
|
||
|
|
if (obj.debug) console.log('SCSI_WRITE, len = ' + (14 + len));
|
||
|
|
obj.SendCommand(0x51, new Buffer([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:
|
||
|
|
if (obj.debug) console.log('Unknown IDER command', obj.acc[0]);
|
||
|
|
obj.Stop();
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
function handleSCSI(dev, cdb, featureRegister, deviceFlags)
|
||
|
|
{
|
||
|
|
var lba;
|
||
|
|
var len;
|
||
|
|
|
||
|
|
switch(cdb[0])
|
||
|
|
{
|
||
|
|
case 0x00: // TEST_UNIT_READY:
|
||
|
|
if (obj.debug) console.log("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:
|
||
|
|
if (obj.debug) console.log("SCSI Internal error 3", dev);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
obj.SendCommandEndResponse(1, 0x00, dev, 0x00, 0x00); // Indicate ready
|
||
|
|
break;
|
||
|
|
case 0x08: // READ_6
|
||
|
|
lba = ((cdb[1] & 0x1f) << 16) + (cdb[2] << 8) + cdb[3];
|
||
|
|
len = cdb[4];
|
||
|
|
if (len == 0) { len = 256; }
|
||
|
|
if (obj.debug) console.log("SCSI: READ_6", dev, lba, len);
|
||
|
|
sendDiskData(dev, lba, len, featureRegister);
|
||
|
|
break;
|
||
|
|
case 0x0a: // WRITE_6
|
||
|
|
lba = ((cdb[1] & 0x1f) << 16) + (cdb[2] << 8) + cdb[3];
|
||
|
|
len = cdb[4];
|
||
|
|
if (len == 0) { len = 256; }
|
||
|
|
if (obj.debug) console.log("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:
|
||
|
|
console.log("SCSI ERROR: MODE_SELECT_6", dev);
|
||
|
|
obj.SendCommandEndResponse(1, 0x05, dev, 0x20, 0x00);
|
||
|
|
return -1;
|
||
|
|
*/
|
||
|
|
case 0x1a: // MODE_SENSE_6
|
||
|
|
if (obj.debug) console.log("SCSI: MODE_SENSE_6", dev);
|
||
|
|
if ((cdb[2] == 0x3f) && (cdb[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:
|
||
|
|
if (obj.debug) console.log("SCSI Internal error 6", dev);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
obj.SendDataToHost(dev, true, new Buffer([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[1] & 0x01;
|
||
|
|
//var loej = cdb[4] & 0x02;
|
||
|
|
//var start = cdb[4] & 0x01;
|
||
|
|
obj.SendCommandEndResponse(1, 0, dev);
|
||
|
|
break;
|
||
|
|
case 0x1e: // LOCK_UNLOCK - ALLOW_MEDIUM_REMOVAL
|
||
|
|
if (obj.debug) console.log("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)
|
||
|
|
if (obj.debug) console.log("SCSI: READ_FORMAT_CAPACITIES", dev);
|
||
|
|
var buflen = 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.floppy.size == 0)) { obj.SendCommandEndResponse(0, 0x05, dev, 0x24, 0x00); return -1; }
|
||
|
|
sectors = (obj.floppy.size >> 9) - 1;
|
||
|
|
break;
|
||
|
|
case 0xB0: // DEV_CDDVD
|
||
|
|
if ((obj.cdrom == null) || (obj.cdrom.size == 0)) { obj.SendCommandEndResponse(0, 0x05, dev, 0x24, 0x00); return -1; }
|
||
|
|
sectors = (obj.cdrom.size >> 11) - 1; // Number 2048 byte blocks
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
if (obj.debug) console.log("SCSI Internal error 4", dev);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
obj.SendDataToHost(dev, true, Buffer.concat([ IntToStr(8), new Buffer([0x00, 0x00, 0x0b, 0x40, 0x02, 0x00, 0x02, 0x00]) ]), featureRegister & 1);
|
||
|
|
break;
|
||
|
|
case 0x25: // READ_CAPACITY
|
||
|
|
if (obj.debug) console.log("SCSI: READ_CAPACITY", dev);
|
||
|
|
var len = 0;
|
||
|
|
switch(dev)
|
||
|
|
{
|
||
|
|
case 0xA0: // DEV_FLOPPY
|
||
|
|
if ((obj.floppy == null) || (obj.floppy.size == 0)) { obj.SendCommandEndResponse(0, 0x02, dev, 0x3a, 0x00); return -1; }
|
||
|
|
if (obj.floppy != null) { len = (obj.floppy.size >> 9) - 1; }
|
||
|
|
if (obj.debug) console.log('DEV_FLOPPY', len); // Number 512 byte blocks
|
||
|
|
break;
|
||
|
|
case 0xB0: // DEV_CDDVD
|
||
|
|
if ((obj.cdrom == null) || (obj.cdrom.size == 0)) { obj.SendCommandEndResponse(0, 0x02, dev, 0x3a, 0x00); return -1; }
|
||
|
|
if (obj.cdrom != null) { len = (obj.cdrom.size >> 11) - 1; } // Number 2048 byte blocks
|
||
|
|
if (obj.debug) console.log('DEV_CDDVD', len);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
if (obj.debug) console.log("SCSI Internal error 4", dev);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
//if (dev == 0xA0) { dev = 0x00; } else { dev = 0x10; } // Weird but seems to work.
|
||
|
|
if (obj.debug) console.log("SCSI: READ_CAPACITY2", dev, deviceFlags);
|
||
|
|
obj.SendDataToHost(deviceFlags, true, Buffer.concat([IntToStr(len), new Buffer([0, 0, ((dev == 0xB0) ? 0x08 : 0x02), 0])]), featureRegister & 1);
|
||
|
|
break;
|
||
|
|
case 0x28: // READ_10
|
||
|
|
lba = ReadInt(cdb, 2);
|
||
|
|
len = ReadShort(cdb, 7);
|
||
|
|
if (obj.debug) console.log("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 = ReadInt(cdb, 2);
|
||
|
|
len = ReadShort(cdb, 7);
|
||
|
|
if (obj.debug) console.log("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 = ReadShort(cdb, 7);
|
||
|
|
var msf = cdb[1] & 0x02;
|
||
|
|
var format = cdb[2] & 0x07;
|
||
|
|
if (format == 0) { format = cdb[9] >> 6; }
|
||
|
|
if (obj.debug) console.log("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:
|
||
|
|
if (obj.debug) console.log("SCSI Internal error 9", dev);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (format == 1) { obj.SendDataToHost(dev, true, new Buffer([0x00, 0x0a, 0x01, 0x01, 0x00, 0x14, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00]), featureRegister & 1); }
|
||
|
|
else if (format == 0) {
|
||
|
|
if (msf) {
|
||
|
|
obj.SendDataToHost(dev, true, new Buffer([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, new Buffer([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[1] != 2);
|
||
|
|
var firstcode = ReadShort(cdb, 2);
|
||
|
|
var buflen = ReadShort(cdb, 7);
|
||
|
|
|
||
|
|
if (obj.debug) console.log("SCSI: GET_CONFIGURATION", dev, sendall, firstcode, buflen);
|
||
|
|
if (buflen == 0) { obj.SendDataToHost(dev, true, Buffer.concat([IntToStr(0x003c), IntToStr(0x0008)]), featureRegister & 1); return -1; } // TODO: Fixed this return, it's not correct.
|
||
|
|
|
||
|
|
// Set the header
|
||
|
|
var r = null;
|
||
|
|
|
||
|
|
// 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; }
|
||
|
|
|
||
|
|
if (r == null) {
|
||
|
|
//console.log('NOT RIGHT', sendall, firstcode, cdb[2], cdb[3]);
|
||
|
|
//process.exit(0);
|
||
|
|
r = Buffer.concat([IntToStr(0x0008), IntToStr(4)]);
|
||
|
|
} else {
|
||
|
|
r = Buffer.concat([IntToStr(0x0008), IntToStr(r.length + 4), r]);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Cut the length to buflen if needed
|
||
|
|
if (r.length > buflen) { r = r.slice(0, buflen); }
|
||
|
|
|
||
|
|
obj.SendDataToHost(dev, true, r, featureRegister & 1);
|
||
|
|
return -1;
|
||
|
|
case 0x4a: // GET_EV_STATUS - GET_EVENT_STATUS_NOTIFICATION
|
||
|
|
//var buflen = (cdb[7] << 8) + cdb[8];
|
||
|
|
//if (buflen == 0) { obj.SendDataToHost(dev, true, Buffer.concat([IntToStr(0x003c), IntToStr(0x0008)]), featureRegister & 1); return -1; } // TODO: Fixed this return, it's not correct.
|
||
|
|
if (obj.debug) console.log("SCSI: GET_EVENT_STATUS_NOTIFICATION", dev, cdb[1], cdb[4], cdb[9]);
|
||
|
|
if ((cdb[1] != 0x01) && (cdb[4] != 0x10)) {
|
||
|
|
if (obj.debug) console.log('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, new Buffer([0x00, present, 0x80, 0x00]), featureRegister & 1); // This is the original version, 4 bytes long
|
||
|
|
break;
|
||
|
|
case 0x4c:
|
||
|
|
obj.SendCommand(0x51, Buffer.concat([ IntToStrX(0), IntToStrX(0), IntToStrX(0), new Buffer([0x87, 0x50, 0x03, 0x00, 0x00, 0x00, 0xb0, 0x51, 0x05, 0x20, 0x00]) ]), true);
|
||
|
|
break;
|
||
|
|
case 0x51: // READ_DISC_INFO
|
||
|
|
if (obj.debug) console.log("SCSI READ_DISC_INFO", dev);
|
||
|
|
obj.SendCommandEndResponse(0, 0x05, dev, 0x20, 0x00); // Correct
|
||
|
|
return -1;
|
||
|
|
case 0x55: // MODE_SELECT_10:
|
||
|
|
if (obj.debug) console.log("SCSI ERROR: MODE_SELECT_10", dev);
|
||
|
|
obj.SendCommandEndResponse(1, 0x05, dev, 0x20, 0x00);
|
||
|
|
return -1;
|
||
|
|
case 0x5a: // MODE_SENSE_10
|
||
|
|
if (obj.debug) console.log("SCSI: MODE_SENSE_10", dev, cdb[2] & 0x3f);
|
||
|
|
var buflen = ReadShort(cdb, 7);
|
||
|
|
//var pc = cdb[2] & 0xc0;
|
||
|
|
var r = null;
|
||
|
|
|
||
|
|
if (buflen == 0) { obj.SendDataToHost(dev, true, Buffer.concat([IntToStr(0x003c), 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.floppy.size >> 9); }
|
||
|
|
} else {
|
||
|
|
if (obj.cdrom != null) { sectorCount = (obj.cdrom.size >> 11); }
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (cdb[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
|
||
|
|
if (obj.debug) console.log("IDER: Unknown SCSI command", cdb[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.floppy.size >> 9); } }
|
||
|
|
if (dev == 0xB0) { media = obj.cdrom; if (obj.cdrom != null) { mediaBlocks = (obj.cdrom.size >> 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 = [];
|
||
|
|
var g_reset = false;
|
||
|
|
var g_media = null;
|
||
|
|
var g_dev;
|
||
|
|
var g_lba;
|
||
|
|
var g_len;
|
||
|
|
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;
|
||
|
|
|
||
|
|
//console.log('Read from ' + lba + ' to ' + (lba + len) + ', total of ' + len);
|
||
|
|
|
||
|
|
var result = new Buffer(len);
|
||
|
|
fs.readSync(g_media.file, result, 0, len, lba);
|
||
|
|
obj.SendDataToHost(g_dev, (g_len == 0), result, 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;
|
||
|
|
}
|
||
|
|
|
||
|
|
function ShortToStr(v) { return new Buffer([(v >> 8) & 0xFF, v & 0xFF]); }
|
||
|
|
function ShortToStrX(v) { return new Buffer([v & 0xFF, (v >> 8) & 0xFF]); }
|
||
|
|
function IntToStr(v) { return new Buffer([(v >> 24) & 0xFF, (v >> 16) & 0xFF, (v >> 8) & 0xFF, v & 0xFF]); }
|
||
|
|
function IntToStrX(v) { return new Buffer([v & 0xFF, (v >> 8) & 0xFF, (v >> 16) & 0xFF, (v >> 24) & 0xFF]); }
|
||
|
|
function ReadShort(v, p) { return (v[p] << 8) + v[p + 1]; }
|
||
|
|
function ReadShortX(v, p) { return (v[p + 1] << 8) + v[p]; }
|
||
|
|
function ReadInt(v, p) { return (v[p] * 0x1000000) + (v[p + 1] << 16) + (v[p + 2] << 8) + v[p + 3]; } // We use "*0x1000000" instead of "<<24" because the shift converts the number to signed int32.
|
||
|
|
function ReadSInt(v, p) { return (v[p] << 24) + (v[p + 1] << 16) + (v[p + 2] << 8) + v[p + 3]; }
|
||
|
|
function ReadIntX(v, p) { return (v[p + 3] * 0x1000000) + (v[p + 2] << 16) + (v[p + 1] << 8) + v[p]; }
|