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ParsePrtnStructure.js
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ParsePrtnStructure.js
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/// <reference path="JSProvider.d.ts" />
// __author__ = "Gerhart"
// __license__ = "GPL3"
// __version__ = "1.0"
//
// .scriptrun "ParsePrtnStructure.js"
//
//
"use strict";
var WINDOWS_SERVER_2016 = false;
var WINDOWS_SERVER_2019 = false;
var WINDOWS_SERVER_2022 = false;
var WINDOWS_11 = true;
var WINDOWS_11_PREVIEW = false;
var header = [];
var header_tabs = [];
var g_WinHvpPartitionArray = 0;
var g_PrintTableEntryCounter = 0;
function hex(num, padding)
{
padding = 0;
var result = '';
if (num != null)
{
result = num.toString(16).padStart(padding, "0");
}
return result;
}
if (WINDOWS_SERVER_2022 == true){
var PARTITION_NAME_OFFSET = 0x88;
var MBLOCKS_ARRAY_PRTN_OFFSET = 0x2ac0;
var GPAR_BLOCK_HANDLE_OFFSET = 0x2e50;
var GPAR_ELEMENT_COUNT_OFFSET = 0x14;
// GPAR element offsets
var GPAR_ELEMENT_MBLOCK_ELEMENT = 0x170;
var GPAR_ELEMENT_SOME_GPA_OFFSET = 0x178;
var GPAR_ELEMENT_VMMEM_GPA_OFFSET = 0x180;
// MBLOCK element offsets
var MBLOCK_ELEMENT_MBHANDLE = 0x18;
var MBLOCK_ELEMENT_GUEST_ADDRESS_ARRAY = 0xF0;
}
if (WINDOWS_SERVER_2019 == true){
var PARTITION_NAME_OFFSET = 0x78;
var MBLOCKS_ARRAY_PRTN_OFFSET = 0x1218;
var GPAR_BLOCK_HANDLE_OFFSET = 0x1520;
var GPAR_ELEMENT_COUNT_OFFSET = 0x14;
// GPAR element offsets
var GPAR_ELEMENT_MBLOCK_ELEMENT = 0x170;
var GPAR_ELEMENT_SOME_GPA_OFFSET = 0x178;
var PAR_ELEMENT_VMMEM_GPA_OFFSET = 0x180;
// MBLOCK element offsets
var MBLOCK_ELEMENT_MBHANDLE = 0x18;
var MBLOCK_ELEMENT_GUEST_ADDRESS_ARRAY = 0xF0;
}
if (WINDOWS_SERVER_2016 == true){
var PARTITION_NAME_OFFSET = 0x70;
var MBLOCKS_ARRAY_PRTN_OFFSET = 0x1240;
var GPAR_BLOCK_HANDLE_OFFSET = 0x13A0;
var GPAR_ELEMENT_COUNT_OFFSET = 0x18;
// GPAR element offsets
var GPAR_ELEMENT_MBLOCK_ELEMENT = 0x128;
var GPAR_ELEMENT_SOME_GPA_OFFSET = 0x178;
var GPAR_ELEMENT_VMMEM_GPA_OFFSET = 0x180;
// MBLOCK element offsets
var MBLOCK_ELEMENT_MBHANDLE = 0x18;
var MBLOCK_ELEMENT_GUEST_ADDRESS_ARRAY = 0xE0;
}
if (WINDOWS_11 == true)
{
var PARTITION_NAME_OFFSET = 0x88;
var MBLOCKS_ARRAY_PRTN_OFFSET = 0x2ac0;
var GPAR_BLOCK_HANDLE_OFFSET = 0x2e90;
var GPAR_ELEMENT_COUNT_OFFSET = 0x14;
// GPAR element offsets
var GPAR_ELEMENT_MBLOCK_ELEMENT = 0x178;
var GPAR_ELEMENT_SOME_GPA_OFFSET = 0x180;
var GPAR_ELEMENT_VMMEM_GPA_OFFSET = 0x188;
// MBLOCK element offsets
var MBLOCK_ELEMENT_MBHANDLE = 0x18;
var MBLOCK_ELEMENT_GUEST_ADDRESS_ARRAY = 0xE0;
}
if (WINDOWS_11_PREVIEW == true)
{
var PARTITION_NAME_OFFSET = 0x88;
var MBLOCKS_ARRAY_PRTN_OFFSET = 0xac8;
var GPAR_BLOCK_HANDLE_OFFSET = 0xea0;
var GPAR_ELEMENT_COUNT_OFFSET = 0x14;
// GPAR element offsets
var GPAR_ELEMENT_MBLOCK_ELEMENT = 0x180;
var GPAR_ELEMENT_SOME_GPA_OFFSET = 0x178;
var GPAR_ELEMENT_VMMEM_GPA_OFFSET = 0x190;
// MBLOCK element offsets
var MBLOCK_ELEMENT_MBHANDLE = 0x20;
var MBLOCK_ELEMENT_GUEST_ADDRESS_ARRAY = 0xE0;
}
var PARTITION_ID_OFFSET = PARTITION_NAME_OFFSET + 0x200;
var MBLOCK_ELEMENT_BITMAP_SIZE_01 = 0x38;
var MBLOCK_ELEMENT_BITMAP_SIZE_02 = 0x40;
var GPAR_ELEMENT_SIGNATURE = 0;
var GPAR_ELEMENT_GPA_INDEX_START = 0x100;
var GPAR_ELEMENT_GPA_INDEX_END = 0x108;
var MBLOCK_ELEMENT_SIGNATURE = 0;
var GPAR_ELEMENT_UM_FLAGS = 0x120;
var GPAR_ARRAY_OFFSET = 0x8;
var MBLOCK_ARRAY_START_POSITION_OFFSET = 8;
var MBLOCK_ARRAY_ELEMENT_COUNT_OFFSET = 0;
function Read64bit(address)
{
var result = 0;
result = host.memory.readMemoryValues(address, 1, 8);
return result[0];
}
function Read32bit(address)
{
var result = 0;
result = host.memory.readMemoryValues(address, 1, 4);
return result[0];
}
//
// https://gist.githubusercontent.com/hkraw/5bc0a4cf4615da4e3bb3a846ecb4fe19/raw/e8320146935cb67f446cafb1d4a5353bbc40dfaf/windbg_pwndbg_wrap.js
//
function ReadString(Addr, MaxLength) {
let Value = null;
try {
Value = host.memory.readString(Addr);
} catch(e) {
return null;
}
if(Value.length > MaxLength) {
return Value.substr(0, MaxLength);
}
return Value;
}
function ReadWideString(Addr) {
let Value = null;
try {
Value = host.memory.readWideString(Addr);
} catch(e) {
}
return Value;
}
function PrintStrings()
{
for (var i = 0; i < arguments.length; i++) {
host.diagnostics.debugLog(arguments[i]);
}
host.diagnostics.debugLog('\n');
}
function PrintDml(str1)
{
var g_ctl = host.namespace.Debugger.Utility.Control;
var str2 = '<col fg=\"changed\"> hello syntax color \n</col>"';
var cmd = '.printf /D ' + '"'+str2+'"';
var output = g_ctl.ExecuteCommand(cmd);
}
function pr1str(var1)
{
host.diagnostics.debugLog(var1, '\n');
}
function pr2str(var1, var2)
{
host.diagnostics.debugLog(var1, var2, '\n');
}
function PrintObjType(obj)
{
if (typeof txt === 'object')
{
PrintStrings(obj.constructor.name);
}
else
{
PrintStrings(typeof txt);
}
}
function PrintGlobalHeader()
{
var length = header.length;
for (let i = 0; i < length; i++){
var str = header[i];
var tab = header_tabs[i] - str.length;
if (tab > 0)
{
host.diagnostics.debugLog(str.padEnd(header_tabs[i], ' '));
}
};
host.diagnostics.debugLog('\n');
}
function PrintMBlockArray(pMBlockArray, dqMBlocksCount)
{
var dash = '\n'+''.padEnd(110, '-');
header = ["Index", "Signature", "MBlock Address", "MBHandle", "BitmapSize01", "BitmapSize02", "GPA Array"];
header_tabs = [6, 12, 22, 10, 16, 16, 22];
pr1str("");
pr1str("MBlock array content:");
pr1str(dash);
PrintGlobalHeader();
for (let i = 0; i < dqMBlocksCount; i++){
g_PrintTableEntryCounter = 0;
var objMBlock = Read64bit(pMBlockArray.add(MBLOCK_ARRAY_START_POSITION_OFFSET + i * 8));
if (objMBlock.subtract(0xffff000000000000) < 0)
{
PrintStrings("objMBlock has unusual value. Probably, this is one of docker partitions, which is not contains some memory blocks links");
continue;
}
var uSignature = ReadString(objMBlock);
var qwMBHandle = Read64bit(objMBlock.add(MBLOCK_ELEMENT_MBHANDLE));
var qwBitmapSize01 = Read64bit(objMBlock.add(MBLOCK_ELEMENT_BITMAP_SIZE_01));
var qwBitmapSize02 = Read64bit(objMBlock.add(MBLOCK_ELEMENT_BITMAP_SIZE_02));
if (qwBitmapSize01 == qwBitmapSize02){
qwBitmapSize02 = "Same";
}
var qwGuestAddressArray = Read64bit(objMBlock.add(MBLOCK_ELEMENT_GUEST_ADDRESS_ARRAY));
PrintTableEntry(i);
PrintTableEntry(uSignature);
if (qwBitmapSize02 == "Same")
{
PrintTableEntry(objMBlock);
}
else
{
PrintTableEntry('No');
}
PrintTableEntry(qwMBHandle);
PrintTableEntry(qwBitmapSize01);
PrintTableEntry(qwBitmapSize02);
PrintTableEntry(qwGuestAddressArray);
host.diagnostics.debugLog('\n');
}
}
function get_spaces_count(index, txt)
{
var str = header[index];
var tab = header_tabs[index] - str.length;
var result = '';
var txt_len = 0;
if (typeof txt === 'string')
{
txt_len = txt.length;
}
if (typeof txt === 'number' | typeof txt === 'object')
{
txt_len = txt.toString().length;
}
if (tab >= 0)
{
result = ''.padEnd(header_tabs[index] - txt_len, ' ');
}
return result;
}
function PrintTableEntry(objValue)
{
host.diagnostics.debugLog(objValue, get_spaces_count(g_PrintTableEntryCounter, objValue));
g_PrintTableEntryCounter += 1;
}
function PrintGparArray(pGparArray, dwGparElementCounts)
{
var dash = '\n'+''.padEnd(160, '-');
if (WINDOWS_SERVER_2019 == true | WINDOWS_SERVER_2022 == true | WINDOWS_11 == true | WINDOWS_11_PREVIEW == true)
{
header = ["Index", "Signature", "StartPageNum", "EndPageNum", "BlockSize", "MemoryBlockGpaRangeFlag", "MBlock", "SomeGPA offset", "VmmemGPA offset"];
header_tabs = [6, 12, 15, 15, 15, 26, 22, 22, 22];
}
if (WINDOWS_SERVER_2016 == true)
{
header = ["Index", "Signature", "StartPageNum", "EndPageNum", "BlockSize", "MemoryBlockGpaRangeFlag", "MBlock"];
header_tabs = [6, 12, 15, 15, 15, 26, 22];
}
pr1str("");
pr1str("GPAR Array content");
pr1str(dash);
PrintGlobalHeader();
for (let i = 0; i < dwGparElementCounts; i++){
g_PrintTableEntryCounter = 0;
var objGpar = Read64bit(pGparArray.add(i * 8));
var uSignature = ReadString(objGpar);
var qwGpaIndexStart = Read64bit(objGpar.add(GPAR_ELEMENT_GPA_INDEX_START));
var qwGpaIndexEnd = Read64bit(objGpar.add(GPAR_ELEMENT_GPA_INDEX_END));
var qwBlockSize = qwGpaIndexEnd.subtract(qwGpaIndexStart);
qwBlockSize = qwBlockSize.add(1);
var dwUmFlag = Read32bit(objGpar.add(GPAR_ELEMENT_UM_FLAGS));
var qwMblockAddress = Read64bit(objGpar.add(GPAR_ELEMENT_MBLOCK_ELEMENT));
PrintTableEntry(i);
PrintTableEntry(uSignature);
PrintTableEntry(qwGpaIndexStart);
PrintTableEntry(qwGpaIndexEnd);
PrintTableEntry(qwBlockSize);
PrintTableEntry(dwUmFlag);
PrintTableEntry(qwMblockAddress);
if (WINDOWS_SERVER_2016 == false)
{
var qwSomeGpa = Read64bit(objGpar.add(GPAR_ELEMENT_SOME_GPA_OFFSET));
var qwVmmemGpa = Read64bit(objGpar.add(GPAR_ELEMENT_VMMEM_GPA_OFFSET));
PrintTableEntry(qwSomeGpa);
PrintTableEntry(qwVmmemGpa);
}
host.diagnostics.debugLog('\n');
}
}
function PrintPartitionHandleInfo(hPartitionHandle)
{
PrintStrings("");
var PartitionSignature = ReadString(hPartitionHandle, 0x100);
PrintStrings('PartitionSignature: ', PartitionSignature);
if (PartitionSignature == "Exo "){
PrintStrings("EXO partition parsing is not implemented yet.");
return 0;
}
var uPartitionNameAddress = hPartitionHandle.add(PARTITION_NAME_OFFSET);
PrintStrings("Partition name address: ", uPartitionNameAddress, ". PARTITION_NAME_OFFSET: ", hex(PARTITION_NAME_OFFSET));
var uPartitionName = ReadWideString(hPartitionHandle.add(PARTITION_NAME_OFFSET));
var qwPartitionId = Read64bit(hPartitionHandle.add(PARTITION_ID_OFFSET));
PrintStrings("Partition name: ", uPartitionName);
PrintStrings("Partition id: ", qwPartitionId);
//
// MBlocks information
//
var pMBlockTable = Read64bit(hPartitionHandle.add(MBLOCKS_ARRAY_PRTN_OFFSET));
var qwMBlocksCount = Read64bit(pMBlockTable.add(MBLOCK_ARRAY_ELEMENT_COUNT_OFFSET));
qwMBlocksCount = qwMBlocksCount.subtract(1);
//
// GPAR blocks information
//
var pGparBlockHandle = Read64bit(hPartitionHandle.add(GPAR_BLOCK_HANDLE_OFFSET));
var dwGparElementCounts = Read32bit(pGparBlockHandle.add(GPAR_ELEMENT_COUNT_OFFSET));
var pGparArray = Read64bit(pGparBlockHandle.add(GPAR_ARRAY_OFFSET));
PrintStrings("MBBlocks table address: ", hex(pMBlockTable));
PrintStrings("MBBlocks table element count: ", qwMBlocksCount);
PrintStrings("Gpar block handle address: ", hex(pGparBlockHandle));
PrintStrings("Gpar Element Count: ", dwGparElementCounts);
PrintStrings("pGparArray address: ", hex(pGparArray));
PrintGparArray(pGparArray, dwGparElementCounts);
PrintMBlockArray(pMBlockTable, qwMBlocksCount);
}
function invokeScript()
{
var g_ctl = host.namespace.Debugger.Utility.Control;
PrintStrings("Execute .reload command");
var output = g_ctl.ExecuteCommand(".reload");
g_WinHvpPartitionArray = host.getModuleSymbolAddress('winhvr', 'WinHvpPartitionArray');
PrintStrings('WinHvpPartitionArray address:', g_WinHvpPartitionArray);
var ptrInternalPartitions = Read64bit(g_WinHvpPartitionArray);
if (ptrInternalPartitions.convertToNumber() == 0)
{
PrintStrings('It looks like there are no active Hyper-V VMs');
return;
}
var PartitionsCount = Read32bit(ptrInternalPartitions);
PrintStrings('PartitionsCount:', PartitionsCount);
if (PartitionsCount == 0)
{
PrintStrings('VM count is 0\n');
return;
}
PrintStrings("ptrInternalPartitions:", ptrInternalPartitions);
for (let prtn_num = 0; prtn_num < PartitionsCount; prtn_num++){
var prtn_host_pointer = ptrInternalPartitions.add(0x10 + prtn_num * 0x10);
var PartitionsVar = Read64bit(prtn_host_pointer);
var VidPartitionId = Read64bit(PartitionsVar.add(8));
var PartitionHandle = Read64bit(PartitionsVar.add(0x18));
PrintStrings("VidPartitionId:", VidPartitionId);
PrintStrings("PartitionHandle:", PartitionHandle);
PrintPartitionHandleInfo(PartitionHandle);
}
}
function initializeScript()
{
//
// Extends our notion of a process to place architecture information on it.
//
}