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/*************************************************************************/
/* macho.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
// Mach-O binary object file format parser and editor.
#ifndef MACHO_H
#define MACHO_H
#include "core/crypto/crypto.h"
#include "core/crypto/crypto_core.h"
#include "core/io/file_access.h"
#include "core/object/ref_counted.h"
#include "modules/modules_enabled.gen.h" // For regex.
#ifdef MODULE_REGEX_ENABLED
class MachO : public RefCounted {
struct MachHeader {
uint32_t cputype;
uint32_t cpusubtype;
uint32_t filetype;
uint32_t ncmds;
uint32_t sizeofcmds;
uint32_t flags;
};
enum LoadCommandID {
LC_SEGMENT = 0x00000001,
LC_SYMTAB = 0x00000002,
LC_SYMSEG = 0x00000003,
LC_THREAD = 0x00000004,
LC_UNIXTHREAD = 0x00000005,
LC_LOADFVMLIB = 0x00000006,
LC_IDFVMLIB = 0x00000007,
LC_IDENT = 0x00000008,
LC_FVMFILE = 0x00000009,
LC_PREPAGE = 0x0000000a,
LC_DYSYMTAB = 0x0000000b,
LC_LOAD_DYLIB = 0x0000000c,
LC_ID_DYLIB = 0x0000000d,
LC_LOAD_DYLINKER = 0x0000000e,
LC_ID_DYLINKER = 0x0000000f,
LC_PREBOUND_DYLIB = 0x00000010,
LC_ROUTINES = 0x00000011,
LC_SUB_FRAMEWORK = 0x00000012,
LC_SUB_UMBRELLA = 0x00000013,
LC_SUB_CLIENT = 0x00000014,
LC_SUB_LIBRARY = 0x00000015,
LC_TWOLEVEL_HINTS = 0x00000016,
LC_PREBIND_CKSUM = 0x00000017,
LC_LOAD_WEAK_DYLIB = 0x80000018,
LC_SEGMENT_64 = 0x00000019,
LC_ROUTINES_64 = 0x0000001a,
LC_UUID = 0x0000001b,
LC_RPATH = 0x8000001c,
LC_CODE_SIGNATURE = 0x0000001d,
LC_SEGMENT_SPLIT_INFO = 0x0000001e,
LC_REEXPORT_DYLIB = 0x8000001f,
LC_LAZY_LOAD_DYLIB = 0x00000020,
LC_ENCRYPTION_INFO = 0x00000021,
LC_DYLD_INFO = 0x00000022,
LC_DYLD_INFO_ONLY = 0x80000022,
LC_LOAD_UPWARD_DYLIB = 0x80000023,
LC_VERSION_MIN_MACOSX = 0x00000024,
LC_VERSION_MIN_IPHONEOS = 0x00000025,
LC_FUNCTION_STARTS = 0x00000026,
LC_DYLD_ENVIRONMENT = 0x00000027,
LC_MAIN = 0x80000028,
LC_DATA_IN_CODE = 0x00000029,
LC_SOURCE_VERSION = 0x0000002a,
LC_DYLIB_CODE_SIGN_DRS = 0x0000002b,
LC_ENCRYPTION_INFO_64 = 0x0000002c,
LC_LINKER_OPTION = 0x0000002d,
LC_LINKER_OPTIMIZATION_HINT = 0x0000002e,
LC_VERSION_MIN_TVOS = 0x0000002f,
LC_VERSION_MIN_WATCHOS = 0x00000030,
};
struct LoadCommandHeader {
uint32_t cmd;
uint32_t cmdsize;
};
struct LoadCommandSegment {
char segname[16];
uint32_t vmaddr;
uint32_t vmsize;
uint32_t fileoff;
uint32_t filesize;
uint32_t maxprot;
uint32_t initprot;
uint32_t nsects;
uint32_t flags;
};
struct LoadCommandSegment64 {
char segname[16];
uint64_t vmaddr;
uint64_t vmsize;
uint64_t fileoff;
uint64_t filesize;
uint32_t maxprot;
uint32_t initprot;
uint32_t nsects;
uint32_t flags;
};
struct Section {
char sectname[16];
char segname[16];
uint32_t addr;
uint32_t size;
uint32_t offset;
uint32_t align;
uint32_t reloff;
uint32_t nreloc;
uint32_t flags;
uint32_t reserved1;
uint32_t reserved2;
};
struct Section64 {
char sectname[16];
char segname[16];
uint64_t addr;
uint64_t size;
uint32_t offset;
uint32_t align;
uint32_t reloff;
uint32_t nreloc;
uint32_t flags;
uint32_t reserved1;
uint32_t reserved2;
uint32_t reserved3;
};
Ref<FileAccess> fa;
bool swap = false;
uint64_t lc_limit = 0;
uint64_t exe_limit = 0;
uint64_t exe_base = std::numeric_limits<uint64_t>::max(); // Start of first __text section.
uint32_t align = 0;
uint32_t cputype = 0;
uint32_t cpusubtype = 0;
uint64_t link_edit_offset = 0; // __LINKEDIT segment offset.
uint64_t signature_offset = 0; // Load command offset.
uint32_t seg_align(uint64_t p_vmaddr, uint32_t p_min, uint32_t p_max);
bool alloc_signature(uint64_t p_size);
static inline size_t PAD(size_t s, size_t a) {
return (a - s % a);
}
public:
static bool is_macho(const String &p_path);
bool open_file(const String &p_path);
uint64_t get_exe_base();
uint64_t get_exe_limit();
int32_t get_align();
uint32_t get_cputype();
uint32_t get_cpusubtype();
uint64_t get_size();
uint64_t get_code_limit();
uint64_t get_signature_offset();
bool is_signed();
PackedByteArray get_cdhash_sha1();
PackedByteArray get_cdhash_sha256();
PackedByteArray get_requirements();
const Ref<FileAccess> get_file() const;
Ref<FileAccess> get_file();
uint64_t get_signature_size();
bool set_signature_size(uint64_t p_size);
};
#endif // MODULE_REGEX_ENABLED
#endif // MACHO_H
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