661 lines
15 KiB
C++
661 lines
15 KiB
C++
// MachoHandler.cpp
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#include "StdAfx.h"
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#include "../../../C/CpuArch.h"
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#include "../../Common/ComTry.h"
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#include "../../Common/MyBuffer.h"
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#include "../../Common/StringConvert.h"
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#include "../../Common/IntToString.h"
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#include "../../Windows/PropVariantUtils.h"
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#include "../Common/LimitedStreams.h"
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#include "../Common/ProgressUtils.h"
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#include "../Common/RegisterArc.h"
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#include "../Common/StreamUtils.h"
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#include "../Compress/CopyCoder.h"
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static UInt32 Get32(const Byte *p, bool be) { if (be) return GetBe32(p); return GetUi32(p); }
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static UInt64 Get64(const Byte *p, bool be) { if (be) return GetBe64(p); return GetUi64(p); }
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using namespace NWindows;
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using namespace NCOM;
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namespace NArchive {
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namespace NMacho {
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#define CPU_ARCH_ABI64 (1 << 24)
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#define CPU_TYPE_386 7
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#define CPU_TYPE_ARM 12
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#define CPU_TYPE_SPARC 14
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#define CPU_TYPE_PPC 18
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#define CPU_SUBTYPE_I386_ALL 3
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#define CPU_TYPE_PPC64 (CPU_ARCH_ABI64 | CPU_TYPE_PPC)
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#define CPU_TYPE_AMD64 (CPU_ARCH_ABI64 | CPU_TYPE_386)
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#define CPU_SUBTYPE_LIB64 (1 << 31)
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#define CPU_SUBTYPE_POWERPC_970 100
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static const char * const k_PowerPc_SubTypes[] =
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{
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NULL
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, "601"
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, "602"
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, "603"
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, "603e"
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, "603ev"
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, "604"
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, "604e"
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, "620"
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, "750"
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, "7400"
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, "7450"
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};
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static const CUInt32PCharPair g_CpuPairs[] =
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{
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{ CPU_TYPE_386, "x86" },
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{ CPU_TYPE_ARM, "ARM" },
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{ CPU_TYPE_SPARC, "SPARC" },
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{ CPU_TYPE_PPC, "PowerPC" }
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};
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#define CMD_SEGMENT_32 1
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#define CMD_SEGMENT_64 0x19
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#define SECT_TYPE_MASK 0x000000FF
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#define SECT_ATTR_MASK 0xFFFFFF00
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#define SECT_ATTR_ZEROFILL 1
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static const char *g_SectTypes[] =
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{
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"REGULAR"
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, "ZEROFILL"
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, "CSTRINGS"
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, "4BYTE_LITERALS"
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, "8BYTE_LITERALS"
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, "LITERAL_POINTERS"
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, "NON_LAZY_SYMBOL_POINTERS"
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, "LAZY_SYMBOL_POINTERS"
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, "SYMBOL_STUBS"
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, "MOD_INIT_FUNC_POINTERS"
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, "MOD_TERM_FUNC_POINTERS"
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, "COALESCED"
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, "GB_ZEROFILL"
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, "INTERPOSING"
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, "16BYTE_LITERALS"
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};
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enum EFileType
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{
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kType_OBJECT = 1,
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kType_EXECUTE,
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kType_FVMLIB,
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kType_CORE,
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kType_PRELOAD,
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kType_DYLIB,
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kType_DYLINKER,
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kType_BUNDLE,
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kType_DYLIB_STUB,
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kType_DSYM
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};
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static const char *g_FileTypes[] =
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{
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"0"
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, "OBJECT"
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, "EXECUTE"
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, "FVMLIB"
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, "CORE"
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, "PRELOAD"
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, "DYLIB"
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, "DYLINKER"
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, "BUNDLE"
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, "DYLIB_STUB"
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, "DSYM"
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};
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static const char *g_ArcFlags[] =
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{
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"NOUNDEFS"
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, "INCRLINK"
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, "DYLDLINK"
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, "BINDATLOAD"
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, "PREBOUND"
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, "SPLIT_SEGS"
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, "LAZY_INIT"
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, "TWOLEVEL"
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, "FORCE_FLAT"
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, "NOMULTIDEFS"
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, "NOFIXPREBINDING"
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, "PREBINDABLE"
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, "ALLMODSBOUND"
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, "SUBSECTIONS_VIA_SYMBOLS"
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, "CANONICAL"
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, "WEAK_DEFINES"
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, "BINDS_TO_WEAK"
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, "ALLOW_STACK_EXECUTION"
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, "ROOT_SAFE"
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, "SETUID_SAFE"
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, "NO_REEXPORTED_DYLIBS"
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, "PIE"
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, "DEAD_STRIPPABLE_DYLIB"
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, "HAS_TLV_DESCRIPTORS"
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, "NO_HEAP_EXECUTION"
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};
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static const CUInt32PCharPair g_Flags[] =
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{
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{ 31, "PURE_INSTRUCTIONS" },
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{ 30, "NO_TOC" },
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{ 29, "STRIP_STATIC_SYMS" },
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{ 28, "NO_DEAD_STRIP" },
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{ 27, "LIVE_SUPPORT" },
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{ 26, "SELF_MODIFYING_CODE" },
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{ 25, "DEBUG" },
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{ 10, "SOME_INSTRUCTIONS" },
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{ 9, "EXT_RELOC" },
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{ 8, "LOC_RELOC" }
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};
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static const int kNameSize = 16;
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struct CSegment
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{
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char Name[kNameSize];
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};
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struct CSection
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{
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char Name[kNameSize];
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char SegName[kNameSize];
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UInt64 Va;
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UInt64 Pa;
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UInt64 VSize;
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UInt64 PSize;
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UInt32 Flags;
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int SegmentIndex;
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bool IsDummy;
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CSection(): IsDummy(false) {}
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// UInt64 GetPackSize() const { return Flags == SECT_ATTR_ZEROFILL ? 0 : Size; }
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UInt64 GetPackSize() const { return PSize; }
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};
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class CHandler:
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public IInArchive,
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public IArchiveAllowTail,
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public CMyUnknownImp
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{
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CMyComPtr<IInStream> _inStream;
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CObjectVector<CSegment> _segments;
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CObjectVector<CSection> _sections;
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bool _allowTail;
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bool _mode64;
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bool _be;
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UInt32 _cpuType;
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UInt32 _cpuSubType;
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UInt32 _type;
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UInt32 _flags;
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UInt32 _headersSize;
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UInt64 _totalSize;
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HRESULT Open2(ISequentialInStream *stream);
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public:
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MY_UNKNOWN_IMP2(IInArchive, IArchiveAllowTail)
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INTERFACE_IInArchive(;)
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STDMETHOD(AllowTail)(Int32 allowTail);
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CHandler(): _allowTail(false) {}
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};
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static const Byte kArcProps[] =
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{
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kpidCpu,
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kpidBit64,
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kpidBigEndian,
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kpidCharacts,
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kpidHeadersSize
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};
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static const Byte kProps[] =
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{
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kpidPath,
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kpidSize,
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kpidPackSize,
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kpidCharacts,
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kpidOffset,
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kpidVa
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};
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IMP_IInArchive_Props
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IMP_IInArchive_ArcProps
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STDMETHODIMP CHandler::GetArchiveProperty(PROPID propID, PROPVARIANT *value)
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{
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COM_TRY_BEGIN
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CPropVariant prop;
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switch (propID)
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{
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case kpidShortComment:
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case kpidCpu:
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{
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AString s;
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char temp[16];
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UInt32 cpu = _cpuType & ~(UInt32)CPU_ARCH_ABI64;
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if (_cpuType == CPU_TYPE_AMD64)
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s = "x64";
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else
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{
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const char *n = NULL;
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for (unsigned i = 0; i < ARRAY_SIZE(g_CpuPairs); i++)
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{
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const CUInt32PCharPair &pair = g_CpuPairs[i];
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if (pair.Value == cpu)
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{
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n = pair.Name;
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break;
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}
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}
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if (!n)
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{
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ConvertUInt32ToString(cpu, temp);
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n = temp;
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}
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s = n;
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if (_cpuType & CPU_ARCH_ABI64)
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s += " 64-bit";
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else if (_cpuSubType & CPU_SUBTYPE_LIB64)
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s += " 64-bit lib";
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}
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UInt32 t = _cpuSubType & ~(UInt32)CPU_SUBTYPE_LIB64;
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if (t != 0 && (t != CPU_SUBTYPE_I386_ALL || cpu != CPU_TYPE_386))
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{
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const char *n = NULL;
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if (cpu == CPU_TYPE_PPC)
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{
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if (t == CPU_SUBTYPE_POWERPC_970)
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n = "970";
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else if (t < ARRAY_SIZE(k_PowerPc_SubTypes))
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n = k_PowerPc_SubTypes[t];
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}
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if (!n)
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{
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ConvertUInt32ToString(t, temp);
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n = temp;
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}
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s.Add_Space();
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s += n;
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}
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prop = s;
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break;
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}
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case kpidCharacts:
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{
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// TYPE_TO_PROP(g_FileTypes, _type, prop); break;
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AString res = TypeToString(g_FileTypes, ARRAY_SIZE(g_FileTypes), _type);
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AString s = FlagsToString(g_ArcFlags, ARRAY_SIZE(g_ArcFlags), _flags);
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if (!s.IsEmpty())
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{
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res.Add_Space();
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res += s;
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}
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prop = res;
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break;
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}
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case kpidPhySize: prop = _totalSize; break;
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case kpidHeadersSize: prop = _headersSize; break;
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case kpidBit64: if (_mode64) prop = _mode64; break;
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case kpidBigEndian: if (_be) prop = _be; break;
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case kpidExtension:
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{
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const char *ext = NULL;
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if (_type == kType_OBJECT)
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ext = "o";
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else if (_type == kType_BUNDLE)
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ext = "bundle";
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else if (_type == kType_DYLIB)
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ext = "dylib"; // main shared library usually does not have extension
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if (ext)
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prop = ext;
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break;
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}
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// case kpidIsSelfExe: prop = (_type == kType_EXECUTE); break;
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}
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prop.Detach(value);
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return S_OK;
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COM_TRY_END
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}
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static AString GetName(const char *name)
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{
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char res[kNameSize + 1];
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memcpy(res, name, kNameSize);
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res[kNameSize] = 0;
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return res;
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}
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static AString SectFlagsToString(UInt32 flags)
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{
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AString res = TypeToString(g_SectTypes, ARRAY_SIZE(g_SectTypes), flags & SECT_TYPE_MASK);
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AString s = FlagsToString(g_Flags, ARRAY_SIZE(g_Flags), flags & SECT_ATTR_MASK);
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if (!s.IsEmpty())
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{
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res.Add_Space();
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res += s;
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}
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return res;
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}
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STDMETHODIMP CHandler::GetProperty(UInt32 index, PROPID propID, PROPVARIANT *value)
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{
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COM_TRY_BEGIN
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CPropVariant prop;
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const CSection &item = _sections[index];
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switch (propID)
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{
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case kpidPath:
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{
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AString s = GetName(_segments[item.SegmentIndex].Name);
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if (!item.IsDummy)
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s += GetName(item.Name);
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prop = MultiByteToUnicodeString(s);
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break;
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}
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case kpidSize: /* prop = (UInt64)item.VSize; break; */
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case kpidPackSize: prop = (UInt64)item.GetPackSize(); break;
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case kpidCharacts: if (!item.IsDummy) prop = SectFlagsToString(item.Flags); break;
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case kpidOffset: prop = item.Pa; break;
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case kpidVa: prop = item.Va; break;
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}
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prop.Detach(value);
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return S_OK;
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COM_TRY_END
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}
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HRESULT CHandler::Open2(ISequentialInStream *stream)
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{
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const UInt32 kStartHeaderSize = 7 * 4;
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Byte header[kStartHeaderSize];
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RINOK(ReadStream_FALSE(stream, header, kStartHeaderSize));
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bool be, mode64;
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switch (GetUi32(header))
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{
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case 0xCEFAEDFE: be = true; mode64 = false; break;
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case 0xCFFAEDFE: be = true; mode64 = true; break;
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case 0xFEEDFACE: be = false; mode64 = false; break;
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case 0xFEEDFACF: be = false; mode64 = true; break;
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default: return S_FALSE;
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}
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UInt32 numCommands = Get32(header + 0x10, be);
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UInt32 commandsSize = Get32(header + 0x14, be);
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if (numCommands == 0)
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return S_FALSE;
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if (commandsSize > (1 << 24) ||
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numCommands > (1 << 21) ||
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numCommands * 8 > commandsSize)
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return S_FALSE;
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_cpuType = Get32(header + 4, be);
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_cpuSubType = Get32(header + 8, be);
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_type = Get32(header + 0xC, be);
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_flags = Get32(header + 0x18, be);
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/*
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// Probably the sections are in first commands. So we can reduce the number of commands.
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bool reduceCommands = false;
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const UInt32 kNumReduceCommands = 16;
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if (numCommands > kNumReduceCommands)
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{
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reduceCommands = true;
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numCommands = kNumReduceCommands;
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}
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*/
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UInt32 startHeaderSize = kStartHeaderSize;
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if (mode64)
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startHeaderSize += 4;
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_headersSize = startHeaderSize + commandsSize;
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_totalSize = _headersSize;
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CByteArr buffer(_headersSize);
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RINOK(ReadStream_FALSE(stream, buffer + kStartHeaderSize, _headersSize - kStartHeaderSize));
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const Byte *buf = buffer + startHeaderSize;
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size_t size = _headersSize - startHeaderSize;
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for (UInt32 cmdIndex = 0; cmdIndex < numCommands; cmdIndex++)
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{
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if (size < 8)
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return S_FALSE;
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UInt32 cmd = Get32(buf, be);
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UInt32 cmdSize = Get32(buf + 4, be);
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if (cmdSize < 8)
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return S_FALSE;
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if (size < cmdSize)
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return S_FALSE;
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if (cmd == CMD_SEGMENT_32 || cmd == CMD_SEGMENT_64)
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{
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UInt32 offs = (cmd == CMD_SEGMENT_64) ? 0x48 : 0x38;
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if (cmdSize < offs)
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break;
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UInt64 vmAddr, vmSize, phAddr, phSize;
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{
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if (cmd == CMD_SEGMENT_64)
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{
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vmAddr = Get64(buf + 0x18, be);
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vmSize = Get64(buf + 0x20, be);
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phAddr = Get64(buf + 0x28, be);
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phSize = Get64(buf + 0x30, be);
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}
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else
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{
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vmAddr = Get32(buf + 0x18, be);
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vmSize = Get32(buf + 0x1C, be);
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phAddr = Get32(buf + 0x20, be);
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phSize = Get32(buf + 0x24, be);
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}
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{
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UInt64 totalSize = phAddr + phSize;
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if (totalSize < phAddr)
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return S_FALSE;
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if (_totalSize < totalSize)
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_totalSize = totalSize;
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}
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}
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CSegment seg;
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memcpy(seg.Name, buf + 8, kNameSize);
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_segments.Add(seg);
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UInt32 numSections = Get32(buf + offs - 8, be);
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if (numSections > (1 << 8))
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return S_FALSE;
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if (numSections == 0)
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{
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CSection § = _sections.AddNew();
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sect.IsDummy = true;
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sect.SegmentIndex = _segments.Size() - 1;
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sect.Va = vmAddr;
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sect.PSize = phSize;
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sect.VSize = vmSize;
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sect.Pa = phAddr;
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sect.Flags = 0;
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}
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else do
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{
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UInt32 headSize = (cmd == CMD_SEGMENT_64) ? 0x50 : 0x44;
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const Byte *p = buf + offs;
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if (cmdSize - offs < headSize)
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break;
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CSection § = _sections.AddNew();
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unsigned f32Offset;
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if (cmd == CMD_SEGMENT_64)
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{
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sect.Va = Get64(p + 0x20, be);
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sect.VSize = Get64(p + 0x28, be);
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f32Offset = 0x30;
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}
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else
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{
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sect.Va = Get32(p + 0x20, be);
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sect.VSize = Get32(p + 0x24, be);
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f32Offset = 0x28;
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}
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sect.Pa = Get32(p + f32Offset, be);
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sect.Flags = Get32(p + f32Offset + 10, be);
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if (sect.Flags == SECT_ATTR_ZEROFILL)
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sect.PSize = 0;
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else
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sect.PSize = sect.VSize;
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memcpy(sect.Name, p, kNameSize);
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memcpy(sect.SegName, p + kNameSize, kNameSize);
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sect.SegmentIndex = _segments.Size() - 1;
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offs += headSize;
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}
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while (--numSections);
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if (offs != cmdSize)
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return S_FALSE;
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}
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buf += cmdSize;
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size -= cmdSize;
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}
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// return (reduceCommands || (size == 0)) ? S_OK : S_FALSE;
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if (size != 0)
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return S_FALSE;
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return S_OK;
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}
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STDMETHODIMP CHandler::Open(IInStream *inStream,
|
|
const UInt64 * /* maxCheckStartPosition */,
|
|
IArchiveOpenCallback * /* openArchiveCallback */)
|
|
{
|
|
COM_TRY_BEGIN
|
|
Close();
|
|
RINOK(Open2(inStream));
|
|
if (!_allowTail)
|
|
{
|
|
UInt64 fileSize;
|
|
RINOK(inStream->Seek(0, STREAM_SEEK_END, &fileSize));
|
|
if (fileSize > _totalSize)
|
|
return S_FALSE;
|
|
}
|
|
_inStream = inStream;
|
|
return S_OK;
|
|
COM_TRY_END
|
|
}
|
|
|
|
STDMETHODIMP CHandler::Close()
|
|
{
|
|
_totalSize = 0;
|
|
_inStream.Release();
|
|
_sections.Clear();
|
|
_segments.Clear();
|
|
return S_OK;
|
|
}
|
|
|
|
STDMETHODIMP CHandler::GetNumberOfItems(UInt32 *numItems)
|
|
{
|
|
*numItems = _sections.Size();
|
|
return S_OK;
|
|
}
|
|
|
|
STDMETHODIMP CHandler::Extract(const UInt32 *indices, UInt32 numItems,
|
|
Int32 testMode, IArchiveExtractCallback *extractCallback)
|
|
{
|
|
COM_TRY_BEGIN
|
|
bool allFilesMode = (numItems == (UInt32)(Int32)-1);
|
|
if (allFilesMode)
|
|
numItems = _sections.Size();
|
|
if (numItems == 0)
|
|
return S_OK;
|
|
UInt64 totalSize = 0;
|
|
UInt32 i;
|
|
for (i = 0; i < numItems; i++)
|
|
totalSize += _sections[allFilesMode ? i : indices[i]].GetPackSize();
|
|
extractCallback->SetTotal(totalSize);
|
|
|
|
UInt64 currentTotalSize = 0;
|
|
UInt64 currentItemSize;
|
|
|
|
NCompress::CCopyCoder *copyCoderSpec = new NCompress::CCopyCoder();
|
|
CMyComPtr<ICompressCoder> copyCoder = copyCoderSpec;
|
|
|
|
CLocalProgress *lps = new CLocalProgress;
|
|
CMyComPtr<ICompressProgressInfo> progress = lps;
|
|
lps->Init(extractCallback, false);
|
|
|
|
CLimitedSequentialInStream *streamSpec = new CLimitedSequentialInStream;
|
|
CMyComPtr<ISequentialInStream> inStream(streamSpec);
|
|
streamSpec->SetStream(_inStream);
|
|
|
|
for (i = 0; i < numItems; i++, currentTotalSize += currentItemSize)
|
|
{
|
|
lps->InSize = lps->OutSize = currentTotalSize;
|
|
RINOK(lps->SetCur());
|
|
Int32 askMode = testMode ?
|
|
NExtract::NAskMode::kTest :
|
|
NExtract::NAskMode::kExtract;
|
|
UInt32 index = allFilesMode ? i : indices[i];
|
|
const CSection &item = _sections[index];
|
|
currentItemSize = item.GetPackSize();
|
|
|
|
CMyComPtr<ISequentialOutStream> outStream;
|
|
RINOK(extractCallback->GetStream(index, &outStream, askMode));
|
|
if (!testMode && !outStream)
|
|
continue;
|
|
|
|
RINOK(extractCallback->PrepareOperation(askMode));
|
|
RINOK(_inStream->Seek(item.Pa, STREAM_SEEK_SET, NULL));
|
|
streamSpec->Init(currentItemSize);
|
|
RINOK(copyCoder->Code(inStream, outStream, NULL, NULL, progress));
|
|
outStream.Release();
|
|
RINOK(extractCallback->SetOperationResult(copyCoderSpec->TotalSize == currentItemSize ?
|
|
NExtract::NOperationResult::kOK:
|
|
NExtract::NOperationResult::kDataError));
|
|
}
|
|
return S_OK;
|
|
COM_TRY_END
|
|
}
|
|
|
|
STDMETHODIMP CHandler::AllowTail(Int32 allowTail)
|
|
{
|
|
_allowTail = IntToBool(allowTail);
|
|
return S_OK;
|
|
}
|
|
|
|
static const Byte k_Signature[] = {
|
|
4, 0xCE, 0xFA, 0xED, 0xFE,
|
|
4, 0xCF, 0xFA, 0xED, 0xFE,
|
|
4, 0xFE, 0xED, 0xFA, 0xCE,
|
|
4, 0xFE, 0xED, 0xFA, 0xCF };
|
|
|
|
REGISTER_ARC_I(
|
|
"MachO", "macho", 0, 0xDF,
|
|
k_Signature,
|
|
0,
|
|
NArcInfoFlags::kMultiSignature |
|
|
NArcInfoFlags::kPreArc,
|
|
NULL)
|
|
|
|
}}
|