private void MapAndLoad(FileHandle fileHandle, bool readOnly)
{
using (Section section = new Section(
fileHandle,
false,
readOnly ? MemoryProtection.ExecuteRead : MemoryProtection.ExecuteReadWrite
))
{
_size = (int)fileHandle.GetSize();
_view = section.MapView(_size);
_memory = _view;
byte *start = (byte *)_memory;
if (start[0] != 'M' || start[1] != 'Z')
{
throw new Exception("The file is not a valid executable image.");
}
_ntHeaders = this.GetNtHeaders();
_sections = (ImageSectionHeader *)((byte *)&_ntHeaders->OptionalHeader + _ntHeaders->FileHeader.SizeOfOptionalHeader);
_magic = _ntHeaders->OptionalHeader.Magic;
if (_magic != Win32.Pe32Magic && _magic != Win32.Pe32PlusMagic)
{
throw new Exception("The file is not a PE32 or PE32+ image.");
}
}
}
public void *RvaToVa(int rva)
{
ImageSectionHeader *section = this.RvaToSection(rva);
if (section == null)
{
return(null);
}
return((byte *)_memory + section->PointerToRawData - section->VirtualAddress + rva);
}
public static unsafe IntPtr GetExportedFunctionPointerForModule(long moduleBaseAddress, string importName)
{
ImageNtHeaders * imageNtHeaders = AnalyseModuleWin((IntPtr)moduleBaseAddress);
ImageSectionHeader *pSech = ImageFirstSection(imageNtHeaders);
ImageDataDirectory *imageDirectoryEntryExport = MelonUtils.IsGame32Bit() ? &imageNtHeaders->optionalHeader32.exportTable : &imageNtHeaders->optionalHeader64.exportTable;
ImageExportDirectory *pExportDirectory = (ImageExportDirectory *)((long)moduleBaseAddress + imageDirectoryEntryExport->virtualAddress);
//MelonLoader.MelonLogger.Msg("pExportDirectory at " + string.Format("{0:X}", (ulong)pExportDirectory - (ulong)moduleBaseAddress));
for (uint i = 0; i < imageDirectoryEntryExport->size / sizeof(ImageExportDirectory); ++i)
{
ImageExportDirectory *pExportDirectoryI = pExportDirectory + i;
//MelonLoader.MelonLogger.Msg("pExportDirectoryI->name: " + string.Format("{0:X}", pExportDirectoryI->name));
if (pExportDirectoryI->name != 0)
{
string imagename = Marshal.PtrToStringAnsi((IntPtr)((long)moduleBaseAddress + pExportDirectoryI->name));
//string imagename = CppUtils.CharArrayPtrToString((IntPtr)pExportDirectoryI->name);
//MelonLoader.MelonLogger.Msg("imagename: " + imagename);
/*
* if (imagename != "UnityPlayer.dll")
* continue;
*/
long baseNameOrdinalOffset = moduleBaseAddress + (int)pExportDirectoryI->addressOfNameOrdinals;
long baseFunctionOffset = moduleBaseAddress + (int)pExportDirectoryI->addressOfFunctions;
long baseNameOffset = moduleBaseAddress + (int)pExportDirectoryI->addressOfNames;
for (int j = 0; j < pExportDirectoryI->numberOfNames; ++j)
{
ushort ordinal = *(ushort *)((long)baseNameOrdinalOffset + j * 2);
long functionnameAddress = moduleBaseAddress + *(int *)(baseNameOffset + j * 4);
long functionaddress = moduleBaseAddress + *(int *)(baseFunctionOffset + ordinal * 4);
string importname = Marshal.PtrToStringAnsi((IntPtr)functionnameAddress);
//MelonLoader.MelonLogger.Msg($"{imagename}::{importname} @ 0x{((ulong)functionaddress - (ulong)moduleBaseAddress):X} (0x{functionaddress:X} - 0x{moduleBaseAddress:X})");
if (importname == importName)
{
return((IntPtr)functionaddress);
}
}
}
}
return(IntPtr.Zero);
}
private void Load(void *memory)
{
_memory = memory;
byte *start = (byte *)_memory;
if (start[0] != 'M' || start[1] != 'Z')
{
throw new Exception("The file is not a valid executable image.");
}
_ntHeaders = this.GetNtHeaders();
_sections = (ImageSectionHeader *)((byte *)&_ntHeaders->OptionalHeader + _ntHeaders->FileHeader.SizeOfOptionalHeader);
_magic = _ntHeaders->OptionalHeader.Magic;
if (_magic != Win32.Pe32Magic && _magic != Win32.Pe32PlusMagic)
{
throw new Exception("The file is not a PE32 or PE32+ image.");
}
}
public string GetSectionName(ImageSectionHeader *section)
{
return(new string((sbyte *)section->Name, 0, 8).TrimEnd('\0'));
}
private void MapAndLoad(FileHandle fileHandle, bool readOnly)
{
using (Section section = new Section(
fileHandle,
false,
readOnly ? MemoryProtection.ExecuteRead : MemoryProtection.ExecuteReadWrite
))
{
_size = (int)fileHandle.GetSize();
_view = section.MapView(_size);
_memory = _view;
byte* start = (byte*)_memory;
if (start[0] != 'M' || start[1] != 'Z')
throw new Exception("The file is not a valid executable image.");
_ntHeaders = this.GetNtHeaders();
_sections = (ImageSectionHeader*)((byte*)&_ntHeaders->OptionalHeader + _ntHeaders->FileHeader.SizeOfOptionalHeader);
_magic = _ntHeaders->OptionalHeader.Magic;
if (_magic != Win32.Pe32Magic && _magic != Win32.Pe32PlusMagic)
throw new Exception("The file is not a PE32 or PE32+ image.");
}
}
private unsafe void Read()
{
// Preprare lists
#region COFF Header
// COFF header
listCOFFHeader.Items.Clear();
listCOFFHeader.Items.Add(new ListViewItem(new string[] { "Target Machine",
_mappedImage.NtHeaders->FileHeader.Machine.ToString() }));
listCOFFHeader.Items.Add(new ListViewItem(new string[] { "Number of Sections",
_mappedImage.NtHeaders->FileHeader.NumberOfSections.ToString() }));
listCOFFHeader.Items.Add(new ListViewItem(new string[] { "Time/Date Stamp",
Utils.GetDateTimeFromUnixTime((uint)_mappedImage.NtHeaders->FileHeader.TimeDateStamp).ToString() }));
listCOFFHeader.Items.Add(new ListViewItem(new string[] { "Pointer to Symbol Table",
Utils.FormatAddress(_mappedImage.NtHeaders->FileHeader.PointerToSymbolTable) }));
listCOFFHeader.Items.Add(new ListViewItem(new string[] { "Number of Symbols",
_mappedImage.NtHeaders->FileHeader.NumberOfSymbols.ToString() }));
listCOFFHeader.Items.Add(new ListViewItem(new string[] { "Size of Optional Header",
_mappedImage.NtHeaders->FileHeader.SizeOfOptionalHeader.ToString() }));
listCOFFHeader.Items.Add(new ListViewItem(new string[] { "Characteristics",
_mappedImage.NtHeaders->FileHeader.Characteristics.ToString() }));
#endregion
#region COFF Optional Header
// COFF optional header
listCOFFOptionalHeader.Items.Clear();
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Magic",
_mappedImage.NtHeaders->OptionalHeader.Magic == Win32.Pe32Magic ? "PE32 (0x10b)" :
(_mappedImage.NtHeaders->OptionalHeader.Magic == Win32.Pe32PlusMagic ? "PE32+ (0x20b)" :
"Unknown (0x" + _mappedImage.NtHeaders->OptionalHeader.Magic.ToString("x") + ")") }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Linker Version",
_mappedImage.NtHeaders->OptionalHeader.MajorLinkerVersion.ToString() + "." +
_mappedImage.NtHeaders->OptionalHeader.MinorLinkerVersion.ToString() }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Size of Code",
"0x" + _mappedImage.NtHeaders->OptionalHeader.SizeOfCode.ToString("x") }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Size of Initialized Data",
"0x" + _mappedImage.NtHeaders->OptionalHeader.SizeOfInitializedData.ToString("x") }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Size of Uninitialized Data",
"0x" + _mappedImage.NtHeaders->OptionalHeader.SizeOfUninitializedData.ToString("x") }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Entry Point RVA",
"0x" + _mappedImage.NtHeaders->OptionalHeader.AddressOfEntryPoint.ToString("x") }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Base of Code",
"0x" + _mappedImage.NtHeaders->OptionalHeader.BaseOfCode.ToString("x") }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Preferred Image Base",
"0x" + _mappedImage.NtHeaders->OptionalHeader.ImageBase.ToString("x") }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Section Alignment",
_mappedImage.NtHeaders->OptionalHeader.SectionAlignment.ToString() }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "File Alignment",
_mappedImage.NtHeaders->OptionalHeader.FileAlignment.ToString() }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Operating System Version",
_mappedImage.NtHeaders->OptionalHeader.MajorOperatingSystemVersion.ToString() + "." +
_mappedImage.NtHeaders->OptionalHeader.MinorOperatingSystemVersion.ToString() }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Image Version",
_mappedImage.NtHeaders->OptionalHeader.MajorImageVersion.ToString() + "." +
_mappedImage.NtHeaders->OptionalHeader.MinorImageVersion.ToString() }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Subsystem Version",
_mappedImage.NtHeaders->OptionalHeader.MajorSubsystemVersion.ToString() + "." +
_mappedImage.NtHeaders->OptionalHeader.MinorSubsystemVersion.ToString() }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Size of Image",
"0x" + _mappedImage.NtHeaders->OptionalHeader.SizeOfImage.ToString("x") }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Size of Headers",
"0x" + _mappedImage.NtHeaders->OptionalHeader.SizeOfHeaders.ToString("x") }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Checksum",
"0x" + _mappedImage.NtHeaders->OptionalHeader.CheckSum.ToString("x") }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Subsystem",
_mappedImage.NtHeaders->OptionalHeader.Subsystem.ToString() }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "DLL Characteristics",
_mappedImage.NtHeaders->OptionalHeader.DllCharacteristics.ToString() }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Size of Stack Reserve",
"0x" + _mappedImage.NtHeaders->OptionalHeader.SizeOfStackReserve.ToString("x") }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Size of Stack Commit",
"0x" + _mappedImage.NtHeaders->OptionalHeader.SizeOfStackCommit.ToString("x") }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Size of Heap Reserve",
"0x" + _mappedImage.NtHeaders->OptionalHeader.SizeOfHeapReserve.ToString("x") }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Size of Heap Commit",
"0x" + _mappedImage.NtHeaders->OptionalHeader.SizeOfHeapCommit.ToString("x") }));
listCOFFOptionalHeader.Items.Add(new ListViewItem(new string[] { "Number of Data Directory Entries",
_mappedImage.NtHeaders->OptionalHeader.NumberOfRvaAndSizes.ToString() }));
#endregion
#region Image Data
listImageData.Items.Clear();
for (int i = 0; i < _mappedImage.NumberOfDataEntries; i++)
{
ImageDataDirectory *dataEntry;
dataEntry = _mappedImage.GetDataEntry((ImageDataEntry)i);
if (dataEntry != null && dataEntry->VirtualAddress != 0)
{
ListViewItem item = new ListViewItem
{
Text = ((ImageDataEntry)i).ToString()
};
item.SubItems.Add(new ListViewItem.ListViewSubItem(item, "0x" + dataEntry->VirtualAddress.ToString("x")));
item.SubItems.Add(new ListViewItem.ListViewSubItem(item, "0x" + dataEntry->Size.ToString("x")));
listImageData.Items.Add(item);
}
}
#endregion
#region Sections
listSections.Items.Clear();
for (int i = 0; i < _mappedImage.NumberOfSections; i++)
{
ImageSectionHeader *section = &_mappedImage.Sections[i];
ListViewItem item = new ListViewItem
{
Text = this._mappedImage.GetSectionName(section)
};
item.SubItems.Add(new ListViewItem.ListViewSubItem(item, "0x" + section->VirtualAddress.ToString("x")));
item.SubItems.Add(new ListViewItem.ListViewSubItem(item, "0x" + section->SizeOfRawData.ToString("x")));
item.SubItems.Add(new ListViewItem.ListViewSubItem(item, "0x" + section->PointerToRawData.ToString("x")));
item.SubItems.Add(new ListViewItem.ListViewSubItem(item, section->Characteristics.ToString()));
listSections.Items.Add(item);
}
#endregion
#region Exports
listExports.VirtualListSize = _mappedImage.Exports.Count;
#endregion
#region Imports
listImports.Items.Clear();
listImports.Groups.Clear();
var list = new List <KeyValuePair <string, int> >();
for (int i = 0; i < _mappedImage.Imports.Count; i++)
{
list.Add(new KeyValuePair <string, int>(_mappedImage.Imports[i].Name, i));
}
list.Sort((kvp1, kvp2) => StringComparer.CurrentCultureIgnoreCase.Compare(kvp1.Key, kvp2.Key));
for (int i = 0; i < list.Count; i++)
{
var dll = _mappedImage.Imports[list[i].Value];
int index = list[i].Value;
listImports.Groups.Add(new ListViewGroup(list[i].Key));
for (int j = 0; j < dll.Count; j++)
{
var entry = dll[j];
ListViewItem item = new ListViewItem(listImports.Groups[listImports.Groups.Count - 1]);
if (entry.Name == null)
{
item.Text = "(Ordinal " + entry.Ordinal.ToString() + ")";
item.SubItems.Add(new ListViewItem.ListViewSubItem());
}
else
{
item.Text = entry.Name;
item.SubItems.Add(new ListViewItem.ListViewSubItem(item, entry.NameHint.ToString()));
}
listImports.Items.Add(item);
}
}
// We set GroupState here else there are no groups to set state.
listImports.SetGroupState(ListViewGroupState.Collapsible, "Properties");
#endregion
}
private void Load(void* memory)
{
_memory = memory;
byte* start = (byte*)_memory;
if (start[0] != 'M' || start[1] != 'Z')
throw new Exception("The file is not a valid executable image.");
_ntHeaders = this.GetNtHeaders();
_sections = (ImageSectionHeader*)((byte*)&_ntHeaders->OptionalHeader + _ntHeaders->FileHeader.SizeOfOptionalHeader);
_magic = _ntHeaders->OptionalHeader.Magic;
if (_magic != Win32.Pe32Magic && _magic != Win32.Pe32PlusMagic)
throw new Exception("The file is not a PE32 or PE32+ image.");
}
