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Copy pathDyld.bt
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Dyld.bt
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//------------------------------------------------
//--- 010 Editor v10.0 Binary Template
//
// File: Dyld.bt
// Authors: blacktop
// Version: 1.0
// Purpose:
// Category: Executable
// File Mask: dyld_shared_cache*
// ID Bytes: 64 79 6C 64
// History:
//------------------------------------------------
#define MH_MAGIC_64 0xfeedfacf /* the 64-bit mach magic number */
#define MH_CIGAM_64 0xcffaedfe /* NXSwapInt(MH_MAGIC_64) */
#define MH_MAGIC 0xfeedface /* the mach magic number */
#define MH_CIGAM 0xcefaedfe /* NXSwapInt(MH_MAGIC) */
typedef ubyte Uuid[16]<read = readUUID, format = hex>;
typedef struct
{
union
{
char n_name[4]; /* for use when in-core */
uint32 n_strx; /* index into the string table */
} n_un;
uchar n_type; /* type flag, see below */
uchar n_sect; /* section number or NO_SECT */
int16 n_desc; /* see <mach-o/stab.h> */
uint32 n_value; /* value of this symbol (or stab offset) */
} nlist;
/*
* This is the symbol table entry structure for 64-bit architectures.
*/
typedef struct
{
union
{
uint32 n_strx; /* index into the string table */
} n_un;
uchar n_type; /* type flag, see below */
uchar n_sect; /* section number or NO_SECT */
uint16 n_desc; /* see <mach-o/stab.h> */
uint64 n_value; /* value of this symbol (or stab offset) */
} nlist_64;
typedef struct
{
char magic[16]<bgcolor = cLtBlue>; // e.g. "dyld_v0 i386"
uint mappingOffset; // file offset to first dyld_cache_mapping_info
uint mappingCount; // number of dyld_cache_mapping_info entries
uint imagesOffset; // file offset to first dyld_cache_image_info
uint imagesCount; // number of dyld_cache_image_info entries
uint64 dyldBaseAddress; // base address of dyld when cache was built
uint64 codeSignatureOffset; // file offset of code signature blob
uint64 codeSignatureSize; // size of code signature blob (zero means to end of file)
uint64 slideInfoOffset; // file offset of kernel slid info
uint64 slideInfoSize; // size of kernel slid info
uint64 localSymbolsOffset; // file offset of where local symbols are stored
uint64 localSymbolsSize; // size of local symbols information
Uuid uuid; // unique value for each shared cache file
uint64 cacheType; // 0 for development, 1 for production
uint branchPoolsOffset; // file offset to table of uint64 pool addresses
uint branchPoolsCount; // number of uint64 entries
uint64 accelerateInfoAddr; // (unslid) address of optimization info
uint64 accelerateInfoSize; // size of optimization info
uint64 imagesTextOffset; // file offset to first dyld_cache_image_text_info
uint64 imagesTextCount; // number of dyld_cache_image_text_info entries
uint64 patchInfoAddr; // (unslid) address of dyld_cache_patch_info
uint64 patchInfoSize; // Size of all of the patch information pointed to via the dyld_cache_patch_info
uint64 otherImageGroupAddrUnused; // unused
uint64 otherImageGroupSizeUnused; // unused
uint64 progClosuresAddr; // (unslid) address of list of program launch closures
uint64 progClosuresSize; // size of list of program launch closures
uint64 progClosuresTrieAddr; // (unslid) address of trie of indexes into program launch closures
uint64 progClosuresTrieSize; // size of trie of indexes into program launch closures
uint platform; // platform number (macOS=1, etc)
uint formatVersion : 8; // dyld3::closure::kFormatVersion
uint dylibsExpectedOnDisk : 1; // dyld should expect the dylib exists on disk and to compare inode/mtime to see if cache is valid
uint simulator : 1; // for simulator of specified platform
uint locallyBuiltCache : 1; // 0 for B&I built cache, 1 for locally built cache
uint builtFromChainedFixups : 1; // some dylib in cache was built using chained fixups, so patch tables must be used for overrides
uint padding : 20; // TBD
uint64 sharedRegionStart; // base load address of cache if not slid
uint64 sharedRegionSize; // overall size of region cache can be mapped into
uint64 maxSlide<format = hex>; // runtime slide of cache can be between zero and this value
uint64 dylibsImageArrayAddr; // (unslid) address of ImageArray for dylibs in this cache
uint64 dylibsImageArraySize; // size of ImageArray for dylibs in this cache
uint64 dylibsTrieAddr; // (unslid) address of trie of indexes of all cached dylibs
uint64 dylibsTrieSize; // size of trie of cached dylib paths
uint64 otherImageArrayAddr; // (unslid) address of ImageArray for dylibs and bundles with dlopen closures
uint64 otherImageArraySize; // size of ImageArray for dylibs and bundles with dlopen closures
uint64 otherTrieAddr; // (unslid) address of trie of indexes of all dylibs and bundles with dlopen closures
uint64 otherTrieSize; // size of trie of dylibs and bundles with dlopen closures
uint32 mappingWithSlideOffset; // file offset to first dyld_cache_mapping_and_slide_info
uint32 mappingWithSlideCount; // number of dyld_cache_mapping_and_slide_info entries
uint64 dataMappingStartAddr;
uint64 dylibsImageArrayWithSubCachesAddr; // NOTICE: no Size, but you can calculate by progClosuresWithSubCachesAddr - dylibsImageArrayWithSubCachesAddr
uint64 progClosuresWithSubCachesAddr;
uint64 progClosuresWithSubCachesSize;
uint64 progClosuresTrieWithSubCachesAddr;
uint32 progClosuresTrieWithSubCachesSize;
//uint32 unknown7;
uint dyld4FormatVersion : 8; // dyld4::closure::kFormatVersion
uint dylibsExpectedOnDisk : 1; // dyld should expect the dylib exists on disk and to compare inode/mtime to see if cache is valid
uint simulator : 1; // for simulator of specified platform
uint locallyBuiltCache : 1; // 0 for B&I built cache, 1 for locally built cache
uint builtFromChainedFixups : 1; // some dylib in cache was built using chained fixups, so patch tables must be used for overrides
uint padding : 20; // TBD
uint32 unknown8;
uint32 unknown9;
uint64 unknown10Offset;
uint64 unknown10Size;
uint32 subCacheUUID;
uint32 numSubCaches; // number of dyld_shared_cache .1,.2,.3 files
Uuid symbolSubCacheUUID; // unique value for .symbols sub-cache
uint64 zero1;
uint64 zero2;
uint64 zero3;
uint64 zero4;
uint imagesOffsetWithSubCaches; // file offset to first dyld_cache_image_info
uint imagesCountWithSubCaches; // number of dyld_cache_image_info entries
} dyld_cache_header;
typedef struct
{
uint64 address;
uint64 size;
uint64 fileOffset;
uint32 maxProt;
uint32 initProt;
} dyld_cache_mapping_info<bgcolor = cBlue>;
typedef struct
{
uint64 address;
uint64 size;
uint64 fileOffset;
uint64 slideInfoFileOffset;
uint64 slideInfoFileSize;
uint64 flags;
uint32 maxProt;
uint32 initProt;
} dyld_cache_mapping_and_slide_info<bgcolor = cBlue>;
typedef struct
{
uint64 address;
uint64 modTime;
uint64 inode;
uint32 pathFileOffset;
uint32 pad;
} dyld_cache_image_info<read = readimagename, bgcolor = cLtGreen>;
string readimagename(dyld_cache_image_info &info)
{
return ReadString(info.pathFileOffset);
}
typedef struct
{
uint64 exportsTrieAddr; // address of trie in unslid cache
uint64 weakBindingsAddr;
uint32 exportsTrieSize;
uint32 weakBindingsSize;
uint32 dependentsStartArrayIndex;
uint32 reExportsStartArrayIndex;
} dyld_cache_image_info_extra;
typedef struct
{
uint32 version; // currently 1
uint32 imageExtrasCount; // does not include aliases
uint32 imagesExtrasOffset; // offset into this chunk of first dyld_cache_image_info_extra
uint32 bottomUpListOffset; // offset into this chunk to start of 16-bit array of sorted image indexes
uint32 dylibTrieOffset; // offset into this chunk to start of trie containing all dylib paths
uint32 dylibTrieSize; // size of trie containing all dylib paths
uint32 initializersOffset; // offset into this chunk to start of initializers list
uint32 initializersCount; // size of initializers list
uint32 dofSectionsOffset; // offset into this chunk to start of DOF sections list
uint32 dofSectionsCount; // size of initializers list
uint32 reExportListOffset; // offset into this chunk to start of 16-bit array of re-exports
uint32 reExportCount; // size of re-exports
uint32 depListOffset; // offset into this chunk to start of 16-bit array of dependencies (0x8000 bit set if upward)
uint32 depListCount; // size of dependencies
uint32 rangeTableOffset; // offset into this chunk to start of ss
uint32 rangeTableCount; // size of dependencies
uint64 dyldSectionAddr; // address of libdyld's __dyld section in unslid cache
} dyld_cache_accelerator_info;
typedef struct
{
uint32 functionOffset; // address offset from start of cache mapping
uint32 imageIndex;
} dyld_cache_accelerator_initializer;
typedef struct
{
uint64 startAddress; // unslid address of start of region
uint32 size;
uint32 imageIndex;
} dyld_cache_range_entry;
typedef struct
{
uint64 sectionAddress; // unslid address of start of region
uint32 sectionSize;
uint32 imageIndex;
} dyld_cache_accelerator_dof;
typedef struct
{
Uuid uuid;
uint64 loadAddress; // unslid address of start of __TEXT
uint32 textSegmentSize;
uint32 pathOffset; // offset from start of cache file
} dyld_cache_image_text_info<read = readimagetextname, bgcolor = cGreen>;
string readimagetextname(dyld_cache_image_text_info &tinfo)
{
return ReadString(tinfo.pathOffset);
}
// typedef struct
// {
// local uint64 base = FTell();
// uint32 version; // currently 1
// uint32 toc_offset<format = hex>;
// uint32 toc_count;
// uint32 entries_offset<format = hex>;
// uint32 entries_count;
// uint32 entries_size; // currently 128
// FSeek(base + toc_offset);
// uint16 toc[toc_count];
// FSeek(base + entries_offset);
// uchar entries[entries_count * entries_size];
// } dyld_cache_slide_info;
// void get_dyld_cache_slide_info(uint64 totalsize)
// {
// dyld_cache_slide_info slideinfo;
// }
char[] showstring64(nlist_64 &list)
{
return ReadString(strtableoff + list.n_un.n_strx);
}
char[] showstring(nlist &list)
{
return ReadString(strtableoff + list.n_un.n_strx);
}
void readliststring()
{
if (isbit64)
{
nlist_64 nlists<read = showstring64>;
}
else
{
nlist nlists<read = showstring>;
}
}
typedef struct
{
uint32 dylibOffset; // offset in cache file of start of dylib
uint32 nlistStartIndex; // start index of locals for this dylib
uint32 nlistCount; // number of local symbols for this dylib
} dyld_cache_local_symbols_entry;
typedef struct
{
uint64 dylibOffset; // offset in cache file of start of dylib
uint32 nlistStartIndex; // start index of locals for this dylib
uint32 nlistCount; // number of local symbols for this dylib
} dyld4_cache_local_symbols_entry;
typedef struct(uint count)
{
for (i = 0; i < count; i++)
{
readliststring();
}
}
allnlist;
struct dyld_cache_slide_info2
{
uint32 version; // currently 2
uint32 page_size; // currently 4096 (may also be 16384)
uint32 page_starts_offset;
uint32 page_starts_count;
uint32 page_extras_offset;
uint32 page_extras_count;
uint64 delta_mask; // which (contiguous) set of bits contains the delta to the next rebase location
uint64 value_add;
uint16 page_starts[page_starts_count];
uint16 page_extras[page_extras_count];
};
#define DYLD_CACHE_SLIDE_PAGE_ATTRS 0xC000 // high bits of uint16_t are flags
#define DYLD_CACHE_SLIDE_PAGE_ATTR_EXTRA 0x8000 // index is into extras array (not starts array)
#define DYLD_CACHE_SLIDE_PAGE_ATTR_NO_REBASE 0x4000 // page has no rebasing
#define DYLD_CACHE_SLIDE_PAGE_ATTR_END 0x8000 // last chain entry for page
typedef struct
{
local uint64 base = FTell();
local uint i;
uint32 nlistOffset; // offset into this chunk of nlist entries
uint32 nlistCount; // count of nlist entries
uint32 stringsOffset; // offset into this chunk of string pool
uint32 stringsSize; // byte count of string pool
uint32 entriesOffset; // offset into this chunk of array of dyld_cache_local_symbols_entry
uint32 entriesCount; // number of elements in dyld_cache_local_symbols_entry array
FSeek(base + nlistOffset);
strtableoff = base + stringsOffset;
//allnlist lists(nlistCount);
FSeek(base + entriesOffset);
if (header.imagesOffset > 0)
{
dyld_cache_local_symbols_entry nlistentry[entriesCount];
}
else
{
dyld4_cache_local_symbols_entry nlistentry[entriesCount];
}
} dyld_cache_local_symbols_info;
typedef struct
{
uint64 version;
uint64 offset1;
uint64 offset2;
uint64 offset3;
} new_struct<bgcolor = cPurple>;
typedef struct
{
uint32 unknown1;
uint32 unknown2;
uint32 unknown3;
uint64 mask;
uint32 unknown4;
uint32 unknown5;
uint32 unknown6;
uint32 unknown7;
uint32 unknown8;
} new_sub_struct<bgcolor = cLtPurple>;
void get_dyld_cache_local_symbols_info(uint64 totalsize)
{
dyld_cache_local_symbols_info symbolinfo;
}
void get_dyld_cache_local_symbols_entry(uint64 totalsize)
{
}
LittleEndian();
local int isbit64 = 0;
local uint32 i;
local uint32 sig;
local uint64 strtableoff;
dyld_cache_header header;
FSeek(header.mappingOffset);
dyld_cache_mapping_info mapinfo[header.mappingCount];
FSeek(header.mappingWithSlideOffset);
dyld_cache_mapping_and_slide_info mapWithSlideInfo[header.mappingWithSlideCount];
for (i = 0; i < header.mappingCount; i++)
{
sig = ReadUInt(mapinfo[i].fileOffset);
if (sig == MH_MAGIC_64 || sig == MH_CIGAM_64)
{
isbit64 = 1;
}
}
if (header.imagesOffset > 0)
{
FSeek(header.imagesOffset);
dyld_cache_image_info imageinfo[header.imagesCount];
}
else if (header.imagesOffsetWithSubCaches > 0)
{
FSeek(header.imagesOffsetWithSubCaches);
dyld_cache_image_info imageinfo[header.imagesCountWithSubCaches];
}
FSeek(header.imagesTextOffset);
dyld_cache_image_text_info imagetext[header.imagesTextCount];
if (header.imagesOffset == 0 && header.unknown10Offset > 0)
{
FSeek(header.unknown10Offset);
new_struct new;
FSeek(new.offset1);
new_sub_struct new_sub1;
FSeek(new.offset2);
new_sub_struct new_sub2;
FSeek(new.offset3);
new_sub_struct new_sub3;
}
// FSeek(header.codeSignatureOffset);
// if (header.codeSignatureSize > 0)
// {
// uchar sign[header.codeSignatureSize];
// }
// if (header.slideInfoOffset > 0)
// {
// FSeek(header.slideInfoOffset);
// get_dyld_cache_slide_info(header.slideInfoSize);
// }
if (header.localSymbolsOffset > 0)
{
FSeek(header.localSymbolsOffset);
get_dyld_cache_local_symbols_info(header.localSymbolsSize);
}
// ---------------------------------- macho header ---------------------------------------
// Mach-o's should be Little Endian only -- except for the fat_header/fat_arch
LittleEndian();
typedef enum<uint>
{
MACHO_32 = 0xFEEDFACE, // 32-bit mach object file
MACHO_64 = 0xFEEDFACF, // 64-bit mach object file
MACHO_FAT = 0xCAFEBABE, // Universal object file / FAT_MAGIC
MACHO_FAT_CIGAM = 0xBEBAFECA
} Magic<format = hex>;
#define CPU_ARCH_MASK 0xff000000
#define CPU_ARCH_ABI64 0x01000000
// Changed to enum, more info and handles constant | macro fine //
//
typedef enum<uint>
{
CPU_TYPE_X86 = 0x07,
CPU_TYPE_X64 = 0x07 | CPU_ARCH_ABI64,
CPU_TYPE_ARM = 0x0C,
CPU_TYPE_ARM64 = 0x0C | CPU_ARCH_ABI64,
CPU_TYPE_PPC = 0x12,
CPU_TYPE_PPC64 = 0x12 | CPU_ARCH_ABI64,
CPU_TYPE_I386 = CPU_TYPE_X86,
CPU_TYPE_X86_64 = CPU_TYPE_X64,
CPU_TYPE_POWERPC = CPU_TYPE_PPC,
CPU_TYPE_POWERPC64 = CPU_TYPE_PPC64,
} CpuType<format = hex>;
typedef enum<uint>
{
MACH_OBJECT = 0x1,
MACH_EXECUTE = 0x2,
MACH_FVMLIB = 0x3,
MACH_CORE = 0x4,
MACH_PRELOAD = 0x5,
MACH_DYLIB = 0x6,
MACH_DYLINKER = 0x7,
MACH_BUNDLE = 0x8,
MACH_DYLIB_STUB = 0x9,
MACH_DSYM = 0xA,
MACH_KEXT_BUNDLE = 0xB,
} FileType;
typedef enum<uint>
{
i386_THREAD_STATE = 0x1,
i386_FLOAT_STATE = 0x2,
i386_EXCEPTION_STATE = 0x3
} i386ThreadFlavor<format = hex>;
typedef struct
{
uint32 eax<format = hex>;
uint32 ebx<format = hex>;
uint32 ecx<format = hex>;
uint32 edx<format = hex>;
uint32 edi<format = hex>;
uint32 esi<format = hex>;
uint32 ebp<format = hex>;
uint32 esp<format = hex>;
uint32 ss<format = hex>;
uint32 eflags<format = hex>;
uint32 eip<format = hex>;
uint32 cs<format = hex>;
uint32 ds<format = hex>;
uint32 es<format = hex>;
uint32 fs<format = hex>;
uint32 gs<format = hex>;
} i386ThreadState;
typedef enum<uint>
{
x86_THREAD_STATE32 = 0x1,
x86_FLOAT_STATE32 = 0x2,
x86_EXCEPTION_STATE32 = 0x3,
x86_THREAD_STATE64 = 0x4,
x86_FLOAT_STATE64 = 0x5,
x86_EXCEPTION_STATE64 = 0x6,
x86_THREAD_STATE = 0x7,
x86_FLOAT_STATE = 0x8,
x86_EXCEPTION_STATE = 0x9,
x86_DEBUG_STATE32 = 0xA,
x86_DEBUG_STATE64 = 0xB,
x86_DEBUG_STATE = 0xC,
THREAD_STATE_NONE = 0xD
} x86ThreadFlavor<format = hex>;
typedef struct
{
uint64 rax<format = hex>;
uint64 rbx<format = hex>;
uint64 rcx<format = hex>;
uint64 rdx<format = hex>;
uint64 rdi<format = hex>;
uint64 rsi<format = hex>;
uint64 rbp<format = hex>;
uint64 rsp<format = hex>;
uint64 r8<format = hex>;
uint64 r9<format = hex>;
uint64 r10<format = hex>;
uint64 r11<format = hex>;
uint64 r12<format = hex>;
uint64 r13<format = hex>;
uint64 r14<format = hex>;
uint64 r15<format = hex>;
uint64 rip<format = hex>;
uint64 rflags<format = hex>;
uint64 cs<format = hex>;
uint64 fs<format = hex>;
uint64 gs<format = hex>;
} x86ThreadState;
typedef enum<uint>
{
PPC_THREAD_STATE = 0x1,
PPC_FLOAT_STATE = 0x2,
PPC_EXCEPTION_STATE = 0x3,
PPC_VECTOR_STATE = 0x4,
PPC_THREAD_STATE64 = 0x5,
PPC_EXCEPTION_STATE64 = 0x6
} PPCThreadFlavor<format = hex>;
typedef struct
{
uint32 r0<format = hex>;
uint32 r1<format = hex>;
uint32 r2<format = hex>;
uint32 r3<format = hex>;
uint32 r4<format = hex>;
uint32 r5<format = hex>;
uint32 r6<format = hex>;
uint32 r7<format = hex>;
uint32 r8<format = hex>;
uint32 r9<format = hex>;
uint32 r10<format = hex>;
uint32 r11<format = hex>;
uint32 r12<format = hex>;
uint32 r13<format = hex>;
uint32 r14<format = hex>;
uint32 r15<format = hex>;
uint32 r16<format = hex>;
} ARMThreadState;
typedef struct
{
uint32 __srr0<comment = "Instruction address register (PC)">;
uint32 __srr1<comment = "Machine state register (supervisor)">;
uint32 __r0;
uint32 __r1;
uint32 __r2;
uint32 __r3;
uint32 __r4;
uint32 __r5;
uint32 __r6;
uint32 __r7;
uint32 __r8;
uint32 __r9;
uint32 __r10;
uint32 __r11;
uint32 __r12;
uint32 __r13;
uint32 __r14;
uint32 __r15;
uint32 __r16;
uint32 __r17;
uint32 __r18;
uint32 __r19;
uint32 __r20;
uint32 __r21;
uint32 __r22;
uint32 __r23;
uint32 __r24;
uint32 __r25;
uint32 __r26;
uint32 __r27;
uint32 __r28;
uint32 __r29;
uint32 __r30;
uint32 __r31;
uint32 __cr<comment = "Condition register">;
uint32 __xer<comment = "User's integer exception register">;
uint32 __lr<comment = "Link register">;
uint32 __ctr<comment = "Count register">;
uint32 __mq<comment = "MQ Register (601 only)">;
uint32 __vrsave<comment = "Vector save register">;
} PPCThreadState;
typedef enum<uint>
{
MACH_NOUNDEFS = 0x1,
MACH_INCRLINK = 0x2,
MACH_DYLDLINK = 0x4,
MACH_BINDATLOAD = 0x8,
MACH_PREBOUND = 0x10,
MACH_SPLIT_SEGS = 0x20,
MACH_LAZY_INIT = 0x40,
MACH_TWOLEVEL = 0x80,
MACH_FORCE_FLAT = 0x100,
MACH_NOMULTIDEFS = 0x200,
MACH_NOFIXPREBINDING = 0x400,
MACH_PREBINDABLE = 0x800,
MACH_ALLMODSBOUND = 0x1000,
MACH_SUBSECTIONS_VIA_SYMBOLS = 0x2000,
MACH_CANONICAL = 0x4000,
MACH_WEAK_DEFINES = 0x8000,
MACH_BINDS_TO_WEAK = 0x10000,
MACH_ALLOW_STACK_EXECUTION = 0x20000,
MACH_ROOT_SAFE = 0x40000,
MACH_SETUID_SAFE = 0x80000,
MACH_NO_REEXPORTED_DYLIBS = 0x100000,
MACH_PIE = 0x200000,
MACH_DEAD_STRIPPABLE_DYLIB = 0x400000,
MACH_HAS_TLV_DESCRIPTORS = 0x800000,
MACH_NO_HEAP_EXECUTION = 0x1000000
} Flags;
typedef struct
{
// TODO : Extract out capabilities here
CpuType cpu_type<comment = "CPU specifier", format = hex>;
uint32 cpu_sub_type<comment = "Machine specifier", format = hex>;
uint32 file_offset<comment = "Offset of header in file">;
uint32 size<comment = "Size of object file">;
uint32 align<comment = "alignment as a power of two">;
} Fat_Arch;
typedef struct
{
Magic magic<comment = "Magic bytes for the file">;
if (magic == MACHO_FAT || magic == MACHO_FAT_CIGAM)
{
// Need to switch to BigEndian!
BigEndian();
uint32 fat_arch_size<comment = "Number of fat_arch structs">;
Fat_Arch fat_arch[fat_arch_size];
// Switch back to LittleEndian for rest of parsing
LittleEndian();
}
else
{
CpuType cpu_type<comment = "CPU specifier", format = hex>;
uint32 cpu_sub_type<comment = "Machine specifier", format = hex>;
FileType file_type;
uint32 num_load_commands;
uint32 size_of_load_commands;
Flags flags;
}
if (magic == MACHO_64)
{
uint32 reserved;
}
} Header<read = HeaderRead>;
string HeaderRead(Header &header)
{
local string header_string;
switch (header.magic)
{
case MACHO_FAT:
case MACHO_FAT_CIGAM:
header_string = "FAT header";
break;
case MACHO_32:
header_string = "32bit Mach-O header";
break;
case MACHO_64:
header_string = "64bit Mach-O header";
break;
default:
header_string = "Unknown header!";
}
return header_string;
}
#define REQ_DYLD (0x80000000)
typedef enum<uint>
{
SEGMENT = 0x1,
SYM_TAB = 0x2,
SYM_SEG = 0x3,
THREAD = 0x4,
UNIX_THREAD = 0x5,
LOAD_FVM_LIB = 0x6,
ID_FVM_LIB = 0x7,
IDENT = 0x8,
FVM_FILE = 0x9,
PREPAGE = 0xA,
DY_SYM_TAB = 0xB,
LOAD_DYLIB = 0xC,
ID_DYLIB = 0xD,
LOAD_DYLINKER = 0xE,
ID_DYLINKER = 0xF,
PREBOUND_DYLIB = 0x10,
ROUTINES = 0x11,
SUB_FRAMEWORK = 0x12,
SUB_UMBRELLA = 0x13,
SUB_CLIENT = 0x14,
SUB_LIBRARY = 0x15,
TWOLEVEL_HINTS = 0x16,
PREBIND_CKSUM = 0x17,
LOAD_WEAK_DYLIB = 0x18 | REQ_DYLD,
SEGMENT_64 = 0x19,
ROUTINES_64 = 0x1A,
UUID = 0x1B,
RPATH = 0x1C | REQ_DYLD,
CODE_SIGNATURE = 0x1D,
SEGMENT_SPLIT_INFO = 0x1E,
REEXPORT_DYLIB = 0x1F | REQ_DYLD,
LAZY_LOAD_DYLIB = 0x20,
ENCRYPTION_INFO = 0x21,
DYLD_INFO = 0x22,
DYLD_INFO_ONLY = 0x22 | REQ_DYLD,
LOAD_UPWARD_DYLIB = 0x23 | REQ_DYLD,
VERSION_MIN_MAC_OSX = 0x24,
VERSION_MIN_IPHONE_OS = 0x25,
FUNCTION_STARTS = 0x26,
DYLD_ENVIRONMENT = 0x27,
MAIN = 0x28,
MAIN_DYLIB = 0x28 | REQ_DYLD, // Idk, ios app in arm64 uses
DATA_IN_CODE = 0x29,
SOURCE_VERSION = 0x2A,
DYLIB_CODE_SIGN_DRS = 0x2B,
ENCRYPTION_INFO_64 = 0x2c,
LC_BUILD_VERSION = 0x32,
} LoadCommandType<read = LoadCommandTypeRead>;
string LoadCommandTypeRead(LoadCommandType &loadCommandType)
{
switch (loadCommandType)
{
case SEGMENT:
return "SEGMENT";
case SYM_TAB:
return "SYM_TAB";
case SYM_SEG:
return "SYM_SEG";
case THREAD:
return "THREAD";
case UNIX_THREAD:
return "UNIX_THREAD";
case LOAD_FVM_LIB:
return "LOAD_FVM_LIB";
case ID_FVM_LIB:
return "ID_FVM_LIB";
case IDENT:
return "IDENT";
case FVM_FILE:
return "FVM_FILE";
case PREPAGE:
return "PREPAGE";
case DY_SYM_TAB:
return "DY_SYM_TAB";
case LOAD_DYLIB:
return "LOAD_DYLIB";
case ID_DYLIB:
return "ID_DYLIB";
case LOAD_DYLINKER:
return "LOAD_DYLINKER";
case ID_DYLINKER:
return "ID_DYLINKER";
case PREBOUND_DYLIB:
return "PREBOUND_DYLIB";
case ROUTINES:
return "ROUTINES";
case SUB_FRAMEWORK:
return "SUB_FRAMEWORK";
case SUB_UMBRELLA:
return "SUB_UMBRELLA";
case SUB_CLIENT:
return "SUB_CLIENT";
case SUB_LIBRARY:
return "SUB_LIBRARY";
case TWOLEVEL_HINTS:
return "TWOLEVEL_HINTS";
case PREBIND_CKSUM:
return "PREBIND_CKSUM";
case LOAD_WEAK_DYLIB:
return "LOAD_WEAK_DYLIB";
case SEGMENT_64:
return "SEGMENT_64";
case ROUTINES_64:
return "ROUTINES_64";
case UUID:
return "UUID";
case RPATH:
return "RPATH";
case CODE_SIGNATURE:
return "CODE_SIGNATURE";
case SEGMENT_SPLIT_INFO:
return "SEGMENT_SPLIT_INFO";
case REEXPORT_DYLIB:
return "REEXPORT_DYLIB";
case LAZY_LOAD_DYLIB:
return "LAZY_LOAD_DYLIB";
case ENCRYPTION_INFO:
return "ENCRYPTION_INFO";
case DYLD_INFO:
return "DYLD_INFO";
case DYLD_INFO_ONLY:
return "DYLD_INFO_ONLY";
case LOAD_UPWARD_DYLIB:
return "LOAD_UPWARD_DYLIB";
case VERSION_MIN_MAC_OSX:
return "VERSION_MIN_MAC_OSX";
case VERSION_MIN_IPHONE_OS:
return "VERSION_MIN_IPHONE_OS";
case FUNCTION_STARTS:
return "FUNCTION_STARTS";
case DYLD_ENVIRONMENT:
return "DYLD_ENVIRONMENT";
case MAIN:
return "MAIN";
case MAIN_DYLIB:
return "MAIN_DYLIB";
case DATA_IN_CODE:
return "DATA_IN_CODE";
case SOURCE_VERSION:
return "SOURCE_VERSION";
case DYLIB_CODE_SIGN_DRS:
return "DYLIB_CODE_SIGN_DRS";
case ENCRYPTION_INFO_64:
return "ENCRYPTION_INFO_64";
case LC_BUILD_VERSION:
return "LC_BUILD_VERSION";
default:
return "Error";
}
}
typedef struct
{
char section_name[16];
char segment_name[16];
uint32 address<format = hex>;
uint32 size<format = hex>;
uint32 offset;
uint32 section_alignment;
uint32 relocation_entry_offset;
uint32 number_of_relocation_entries;
uint32 flags<format = hex>;
uint32 reserved1;
uint32 reserved2;
} Section<optimize = false>;
typedef struct
{
char section_name[16];
char segment_name[16];
uint64 address<format = hex>;
uint64 size<format = hex>;
uint32 offset;
uint32 section_alignment;
uint32 relocation_entry_offset;
uint32 number_of_relocation_entries;
uint32 flags<format = hex>;
uint32 reserved1;
uint32 reserved2;
uint32 reserved3;
} Section64<optimize = false>;
typedef uint vm_proc;
typedef enum<uint>
{
HIGH_VM = 0x1,
FVM_LIB = 0x2,
NO_RELOC = 0x4,
PROTECTION_VERSION_1 = 0x8
} SegmentFlags<format = hex>;
typedef struct
{
uint32 load_command_string_offset<comment = "Offset in respect to the start of load command to string data">;
local int64 pos = FTell();
// We need to goto beginning of LoadCommand, then goto the offset
FSeek(FTell() - (sizeof(uint32) * 3) + load_command_string_offset);
string string_data<comment = "Load command string">;
FSeek(pos);
} LoadCommandString<read = LoadCommandStringRead>;
string LoadCommandStringRead(LoadCommandString &loadCommandString)
{
return loadCommandString.string_data;
};
typedef ubyte Uuid[16]<read = readUUID, format = hex>;
// TODO : Clean this ugly thing up
string readUUID(Uuid uuid)
{
local string ret, tmp;
local int i;
for (i = 0; i < 4; i++)
{
SPrintf(tmp, "%.2X", uuid[i]);
ret += tmp;
}
ret += "-";
for (i = 0; i < 2; i++)
{
SPrintf(tmp, "%.2X", uuid[i + 4]);
ret += tmp;
}
ret += "-";
for (i = 0; i < 2; i++)
{
SPrintf(tmp, "%.2X", uuid[i + 6]);
ret += tmp;
}
ret += "-";
for (i = 0; i < 2; i++)
{
SPrintf(tmp, "%.2X", uuid[i + 8]);
ret += tmp;
}
ret += "-";
for (i = 0; i < 6; i++)
{
SPrintf(tmp, "%.2X", uuid[i + 10]);
ret += tmp;
}
return ret;
}
string readUUID2(ubyte uuid[16])
{
local string ret, tmp;
local int i;
for (i = 0; i < 4; i++)
{
SPrintf(tmp, "%.2X", uuid[i]);
ret += tmp;
}
ret += "-";
for (i = 0; i < 2; i++)
{
SPrintf(tmp, "%.2X", uuid[i + 4]);
ret += tmp;
}
ret += "-";
for (i = 0; i < 2; i++)
{
SPrintf(tmp, "%.2X", uuid[i + 6]);
ret += tmp;
}
ret += "-";
for (i = 0; i < 2; i++)
{
SPrintf(tmp, "%.2X", uuid[i + 8]);
ret += tmp;
}
ret += "-";