Mercurial > projects > ddmd
view dbg/image/PE.d @ 74:7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
author | Eldar Insafutdinov <e.insafutdinov@gmail.com> |
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date | Sun, 29 Aug 2010 09:43:40 +0100 |
parents | 6bdecc3f4569 |
children |
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/** A simple PE/COFF image format reader. Authors: Jeremie Pelletier References: $(LINK http://www.csn.ul.ie/~caolan/publink/winresdump/winresdump/doc/pefile.html) License: Public Domain */ module dbg.image.PE; import core.stdc.string : strncmp; import dbg.Debug; import dbg.symbol.CodeView; //import dbg.symbol.COFF; //import sys.windows.FileSystem; //import sys.windows.Memory; //import sys.windows.Security : GENERIC_READ; //import sys.windows.Information : CloseHandle; //import sys.windows.Image; version(Windows) { import core.sys.windows.windows; class PEImage : IExecutableImage { /** Loads and validate the image file. Params: fileName = Path to the image file. */ this(string fileName) in { assert(fileName.length && fileName.ptr); } body { _filename = fileName; // Create the file mapping _file = CreateFileA((fileName ~ '\0').ptr, GENERIC_READ, FILE_SHARE_READ, null, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, null); if(_file == INVALID_HANDLE_VALUE) SystemException(); _fileSize = GetFileSize(_file, null); _map = CreateFileMappingA(_file, null, PAGE_READONLY, 0, 0, null); if(!_map) SystemException(); _view = cast(const(ubyte)*)MapViewOfFile(_map, FILE_MAP_READ, 0, 0, 0); if(!_view) SystemException(); // Verify image headers if(_dos.e_magic != IMAGE_DOS_SIGNATURE) goto Error; CheckOffset(_dos.e_lfanew); _nt = cast(IMAGE_NT_HEADERS32*)(_view + _dos.e_lfanew); if(_nt.Signature != IMAGE_NT_SIGNATURE) goto Error; _is64 = _nt.FileHeader.SizeOfOptionalHeader == IMAGE_SIZEOF_NT_OPTIONAL64_HEADER; if(_is64) { if(_nt64.OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR64_MAGIC) goto Error; } else { if(_nt.OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR32_MAGIC) goto Error; } // Create the RVA lookup table auto sections = this.sections; RVAEntry* e = void; _rvaTable.length = sections.length; foreach(i, ref s; sections) with(s) { e = &_rvaTable[i]; e.start = VirtualAddress; e.end = VirtualAddress + SizeOfRawData; e.base = PointerToRawData; } return; Error: throw new PEInvalidException(this); } /** Unloads the PE file. */ ~this() { if(_dos && !UnmapViewOfFile(cast(void*)_dos)) SystemException(); if(_map && !CloseHandle(_map)) SystemException(); if(_file && !CloseHandle(_file)) SystemException(); } /** Get the filename of the image */ string filename() const { return _filename; } /** Get whether the image uses the 64bit structures or not */ bool is64() const { return _is64; } /** Get the base address of the image */ long imageBase() const { return _is64 ? _nt64.OptionalHeader.ImageBase : _nt.OptionalHeader.ImageBase; } /** Get the raw image data */ const(ubyte)[] data() const { return _view[0 .. _fileSize]; } /** Get the dos, nt or nt64 headers */ const(IMAGE_DOS_HEADER)* dosHeader() const { return _dos; } const(IMAGE_NT_HEADERS32)* ntHeaders32() const { return _nt; } const(IMAGE_NT_HEADERS64)* ntHeaders64() const { return _nt64; } /** Get the array of data directories */ const(IMAGE_DATA_DIRECTORY)[] dataDirectory() const { return _is64 ? _nt64.OptionalHeader.DataDirectory : _nt.OptionalHeader.DataDirectory; } /** Get the array of section headers */ const(IMAGE_SECTION_HEADER)[] sections() const { return (_is64 ? IMAGE_FIRST_SECTION64(_nt64) : IMAGE_FIRST_SECTION32(_nt)) [0 .. _nt.FileHeader.NumberOfSections]; } /** Translate the given Virtual Address to its corresponding data offset. */ long LookupVA(long va) const { return LookupRVA(va - imageBase); } /** Translate the given Relative Virtual Address to its corresponding data offset. */ long LookupRVA(long rva) const { foreach(ref e; _rvaTable) with(e) { if(rva >= start && rva < end) { long offset = base + (rva - start); CheckOffset(offset); return offset; } } return 0; } /** Get a data structure in the image from its RVA */ const(T)* GetDataFromRVA(T : T*)(long rva) const { long offset = LookupRVA(rva); return offset ? cast(T*)(_view + offset) : null; } /** Get a data directory in the image from its ID */ const(T)* GetDirectory(T)(uint id) const { const IMAGE_DATA_DIRECTORY* dir = &dataDirectory[id]; return dir.VirtualAddress && dir.Size ? GetDataFromRVA!(T*)(dir.VirtualAddress) : null; } /** Find the first section matching the given flags mask */ const(IMAGE_SECTION_HEADER)* FindSection(uint mask) const in { assert(mask); } body { foreach(ref section; sections) if(section.Characteristics & mask) return §ion; return null; } /** Find a section by its name */ const(IMAGE_SECTION_HEADER)* FindSection(string name) const in { assert(name.length && name.ptr); } body { foreach(ref section; sections) if(strncmp(cast(char*)section.Name.ptr, name.ptr, section.Name.length) == 0) return §ion; return null; } /** Get the offset to the code segment */ uint codeOffset() const { const(IMAGE_SECTION_HEADER)* section = FindSection(IMAGE_SCN_MEM_EXECUTE); return section ? section.VirtualAddress : 0; } /** Get the symbolic debug info object for this image */ ISymbolicDebugInfo debugInfo() { uint va = _nt.OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress; if(!va) return null; const(IMAGE_DEBUG_DIRECTORY)* dir = void; uint size = _nt.OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG].Size; uint offset = void; // Borland directory const(IMAGE_SECTION_HEADER)* section = FindSection(".debug"); if(section && section.VirtualAddress == va) { CheckOffset(section.PointerToRawData); dir = cast(IMAGE_DEBUG_DIRECTORY*)(_view + section.PointerToRawData); } // Microsoft directory else { section = FindSection(".rdata"); if(!section) goto NoDebug; offset = section.PointerToRawData + (va - section.VirtualAddress); CheckOffset(offset); dir = cast(IMAGE_DEBUG_DIRECTORY*)(_view + offset); } const(void)* end = cast(void*)dir + size; Scan: for(; dir < end; dir++) { switch(dir.Type) { //case IMAGE_DEBUG_TYPE_COFF: case IMAGE_DEBUG_TYPE_CODEVIEW: // TODO: support more types break Scan; default: } } if(dir >= end) goto NoDebug; offset = dir.PointerToRawData + dir.SizeOfData; CheckOffset(offset); auto debugView = _view[dir.PointerToRawData .. offset]; switch(dir.Type) { //case IMAGE_DEBUG_TYPE_COFF: // return new COFFDebugInfo(debugView); case IMAGE_DEBUG_TYPE_CODEVIEW: return new CodeViewDebugInfo(debugView); default: assert(0); } NoDebug: // TODO: we have no debug section or directory, but there csould still // be external symbol files we can use. return null; } private: /** Verify a file offset before accessing it */ void CheckOffset(long offset) const { if (offset > _fileSize) throw new PECorruptedException(this); } string _filename; HANDLE _file; HANDLE _map; size_t _fileSize; bool _is64; union { const(ubyte)* _view; const(IMAGE_DOS_HEADER)* _dos; } union { const(IMAGE_NT_HEADERS32)* _nt; const(IMAGE_NT_HEADERS64)* _nt64; } struct RVAEntry { uint start; uint end; uint base; } RVAEntry[] _rvaTable; } /// Thrown if file open failed. class PEException : Exception { this(string msg) { super("PEImage: " ~ msg); } } /// Thrown if not a valid module file class PEInvalidException : PEException { this(in PEImage img) { super("Invalid PE file."); } } /// Thrown on corrupted module file. class PECorruptedException : PEException { this(in PEImage img) { super("Corrupted PE file."); } } align(2): struct IMAGE_DOS_HEADER { WORD e_magic; WORD e_cblp; WORD e_cp; WORD e_crlc; WORD e_cparhdr; WORD e_minalloc; WORD e_maxalloc; WORD e_ss; WORD e_sp; WORD e_csum; WORD e_ip; WORD e_cs; WORD e_lfarlc; WORD e_ovno; WORD[4] e_res; WORD e_oemid; WORD e_oeminfo; WORD[10] e_res2; LONG e_lfanew; } align(4) struct IMAGE_NT_HEADERS32 { DWORD Signature; IMAGE_FILE_HEADER FileHeader; IMAGE_OPTIONAL_HEADER32 OptionalHeader; } align(4) struct IMAGE_NT_HEADERS64 { DWORD Signature; IMAGE_FILE_HEADER FileHeader; IMAGE_OPTIONAL_HEADER64 OptionalHeader; } align(4): struct IMAGE_FILE_HEADER { WORD Machine; WORD NumberOfSections; DWORD TimeDateStamp; DWORD PointerToSymbolTable; DWORD NumberOfSymbols; WORD SizeOfOptionalHeader; WORD Characteristics; } struct IMAGE_OPTIONAL_HEADER32 { WORD Magic; BYTE MajorLinkerVersion; BYTE MinorLinkerVersion; DWORD SizeOfCode; DWORD SizeOfInitializedData; DWORD SizeOfUninitializedData; DWORD AddressOfEntryPoint; DWORD BaseOfCode; DWORD BaseOfData; DWORD ImageBase; DWORD SectionAlignment; DWORD FileAlignment; WORD MajorOperatingSystemVersion; WORD MinorOperatingSystemVersion; WORD MajorImageVersion; WORD MinorImageVersion; WORD MajorSubsystemVersion; WORD MinorSubsystemVersion; DWORD Win32VersionValue; DWORD SizeOfImage; DWORD SizeOfHeaders; DWORD CheckSum; WORD Subsystem; WORD DllCharacteristics; DWORD SizeOfStackReserve; DWORD SizeOfStackCommit; DWORD SizeOfHeapReserve; DWORD SizeOfHeapCommit; DWORD LoaderFlags; DWORD NumberOfRvaAndSizes; IMAGE_DATA_DIRECTORY[IMAGE_NUMBEROF_DIRECTORY_ENTRIES] DataDirectory; } alias ulong ULONGLONG; struct IMAGE_OPTIONAL_HEADER64 { WORD Magic; BYTE MajorLinkerVersion; BYTE MinorLinkerVersion; DWORD SizeOfCode; DWORD SizeOfInitializedData; DWORD SizeOfUninitializedData; DWORD AddressOfEntryPoint; DWORD BaseOfCode; ULONGLONG ImageBase; DWORD SectionAlignment; DWORD FileAlignment; WORD MajorOperatingSystemVersion; WORD MinorOperatingSystemVersion; WORD MajorImageVersion; WORD MinorImageVersion; WORD MajorSubsystemVersion; WORD MinorSubsystemVersion; DWORD Win32VersionValue; DWORD SizeOfImage; DWORD SizeOfHeaders; DWORD CheckSum; WORD Subsystem; WORD DllCharacteristics; ULONGLONG SizeOfStackReserve; ULONGLONG SizeOfStackCommit; ULONGLONG SizeOfHeapReserve; ULONGLONG SizeOfHeapCommit; DWORD LoaderFlags; DWORD NumberOfRvaAndSizes; IMAGE_DATA_DIRECTORY[IMAGE_NUMBEROF_DIRECTORY_ENTRIES] DataDirectory; } enum { IMAGE_DOS_SIGNATURE = 0x5A4D, IMAGE_OS2_SIGNATURE = 0x454E, IMAGE_OS2_SIGNATURE_LE = 0x454C, IMAGE_VXD_SIGNATURE = 0x454C, IMAGE_NT_SIGNATURE = 0x4550 } const size_t IMAGE_NUMBEROF_DIRECTORY_ENTRIES = 16, IMAGE_SIZEOF_ROM_OPTIONAL_HEADER = 56, IMAGE_SIZEOF_STD_OPTIONAL_HEADER = 28, IMAGE_SIZEOF_NT_OPTIONAL32_HEADER = 224, IMAGE_SIZEOF_NT_OPTIONAL64_HEADER = 240, IMAGE_SIZEOF_SHORT_NAME = 8, IMAGE_SIZEOF_SECTION_HEADER = 40, IMAGE_SIZEOF_SYMBOL = 18, IMAGE_SIZEOF_AUX_SYMBOL = 18, IMAGE_SIZEOF_RELOCATION = 10, IMAGE_SIZEOF_BASE_RELOCATION = 8, IMAGE_SIZEOF_LINENUMBER = 6, IMAGE_SIZEOF_ARCHIVE_MEMBER_HDR = 60, SIZEOF_RFPO_DATA = 16; struct IMAGE_DATA_DIRECTORY { DWORD VirtualAddress; DWORD Size; } // IMAGE_OPTIONAL_HEADER.Magic enum : WORD { IMAGE_NT_OPTIONAL_HDR32_MAGIC = 0x010B, IMAGE_ROM_OPTIONAL_HDR_MAGIC = 0x0107, IMAGE_NT_OPTIONAL_HDR64_MAGIC = 0x020B } struct IMAGE_SECTION_HEADER { BYTE[IMAGE_SIZEOF_SHORT_NAME] Name; union _Misc { DWORD PhysicalAddress; DWORD VirtualSize; } _Misc Misc; DWORD VirtualAddress; DWORD SizeOfRawData; DWORD PointerToRawData; DWORD PointerToRelocations; DWORD PointerToLinenumbers; WORD NumberOfRelocations; WORD NumberOfLinenumbers; DWORD Characteristics; } // IMAGE_SECTION_HEADER.Characteristics const DWORD IMAGE_SCN_TYPE_REG = 0x00000000, IMAGE_SCN_TYPE_DSECT = 0x00000001, IMAGE_SCN_TYPE_NOLOAD = 0x00000002, IMAGE_SCN_TYPE_GROUP = 0x00000004, IMAGE_SCN_TYPE_NO_PAD = 0x00000008, IMAGE_SCN_TYPE_COPY = 0x00000010, IMAGE_SCN_CNT_CODE = 0x00000020, IMAGE_SCN_CNT_INITIALIZED_DATA = 0x00000040, IMAGE_SCN_CNT_UNINITIALIZED_DATA = 0x00000080, IMAGE_SCN_LNK_OTHER = 0x00000100, IMAGE_SCN_LNK_INFO = 0x00000200, IMAGE_SCN_TYPE_OVER = 0x00000400, IMAGE_SCN_LNK_REMOVE = 0x00000800, IMAGE_SCN_LNK_COMDAT = 0x00001000, IMAGE_SCN_MEM_FARDATA = 0x00008000, IMAGE_SCN_GPREL = 0x00008000, IMAGE_SCN_MEM_PURGEABLE = 0x00020000, IMAGE_SCN_MEM_16BIT = 0x00020000, IMAGE_SCN_MEM_LOCKED = 0x00040000, IMAGE_SCN_MEM_PRELOAD = 0x00080000, IMAGE_SCN_ALIGN_1BYTES = 0x00100000, IMAGE_SCN_ALIGN_2BYTES = 0x00200000, IMAGE_SCN_ALIGN_4BYTES = 0x00300000, IMAGE_SCN_ALIGN_8BYTES = 0x00400000, IMAGE_SCN_ALIGN_16BYTES = 0x00500000, IMAGE_SCN_ALIGN_32BYTES = 0x00600000, IMAGE_SCN_ALIGN_64BYTES = 0x00700000, IMAGE_SCN_ALIGN_128BYTES = 0x00800000, IMAGE_SCN_ALIGN_256BYTES = 0x00900000, IMAGE_SCN_ALIGN_512BYTES = 0x00A00000, IMAGE_SCN_ALIGN_1024BYTES = 0x00B00000, IMAGE_SCN_ALIGN_2048BYTES = 0x00C00000, IMAGE_SCN_ALIGN_4096BYTES = 0x00D00000, IMAGE_SCN_ALIGN_8192BYTES = 0x00E00000, IMAGE_SCN_LNK_NRELOC_OVFL = 0x01000000, IMAGE_SCN_MEM_DISCARDABLE = 0x02000000, IMAGE_SCN_MEM_NOT_CACHED = 0x04000000, IMAGE_SCN_MEM_NOT_PAGED = 0x08000000, IMAGE_SCN_MEM_SHARED = 0x10000000, IMAGE_SCN_MEM_EXECUTE = 0x20000000, IMAGE_SCN_MEM_READ = 0x40000000, IMAGE_SCN_MEM_WRITE = 0x80000000; // ImageDirectoryEntryToDataEx() enum : USHORT { IMAGE_DIRECTORY_ENTRY_EXPORT = 0, IMAGE_DIRECTORY_ENTRY_IMPORT, IMAGE_DIRECTORY_ENTRY_RESOURCE, IMAGE_DIRECTORY_ENTRY_EXCEPTION, IMAGE_DIRECTORY_ENTRY_SECURITY, IMAGE_DIRECTORY_ENTRY_BASERELOC, IMAGE_DIRECTORY_ENTRY_DEBUG, IMAGE_DIRECTORY_ENTRY_COPYRIGHT, // = 7 IMAGE_DIRECTORY_ENTRY_ARCHITECTURE = 7, IMAGE_DIRECTORY_ENTRY_GLOBALPTR, IMAGE_DIRECTORY_ENTRY_TLS, IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG, IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT, IMAGE_DIRECTORY_ENTRY_IAT, IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT, IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR, // = 14 } IMAGE_SECTION_HEADER* IMAGE_FIRST_SECTION32(const(IMAGE_NT_HEADERS32)* h) { return cast(IMAGE_SECTION_HEADER*)((cast(char*)&h.OptionalHeader) + h.FileHeader.SizeOfOptionalHeader); } IMAGE_SECTION_HEADER* IMAGE_FIRST_SECTION64(const(IMAGE_NT_HEADERS64)* h) { return cast(IMAGE_SECTION_HEADER*)((cast(char*)&h.OptionalHeader) + h.FileHeader.SizeOfOptionalHeader); } struct IMAGE_DEBUG_DIRECTORY { DWORD Characteristics; DWORD TimeDateStamp; WORD MajorVersion; WORD MinorVersion; DWORD Type; DWORD SizeOfData; DWORD AddressOfRawData; DWORD PointerToRawData; } enum : DWORD { IMAGE_DEBUG_TYPE_UNKNOWN, IMAGE_DEBUG_TYPE_COFF, IMAGE_DEBUG_TYPE_CODEVIEW, IMAGE_DEBUG_TYPE_FPO, IMAGE_DEBUG_TYPE_MISC, IMAGE_DEBUG_TYPE_EXCEPTION, IMAGE_DEBUG_TYPE_FIXUP, IMAGE_DEBUG_TYPE_OMAP_TO_SRC, IMAGE_DEBUG_TYPE_OMAP_FROM_SRC, IMAGE_DEBUG_TYPE_BORLAND // = 9 } }