macho.h 6.3 KB

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  1. /**************************************************************************/
  2. /* macho.h */
  3. /**************************************************************************/
  4. /* This file is part of: */
  5. /* GODOT ENGINE */
  6. /* https://godotengine.org */
  7. /**************************************************************************/
  8. /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
  9. /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
  10. /* */
  11. /* Permission is hereby granted, free of charge, to any person obtaining */
  12. /* a copy of this software and associated documentation files (the */
  13. /* "Software"), to deal in the Software without restriction, including */
  14. /* without limitation the rights to use, copy, modify, merge, publish, */
  15. /* distribute, sublicense, and/or sell copies of the Software, and to */
  16. /* permit persons to whom the Software is furnished to do so, subject to */
  17. /* the following conditions: */
  18. /* */
  19. /* The above copyright notice and this permission notice shall be */
  20. /* included in all copies or substantial portions of the Software. */
  21. /* */
  22. /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
  23. /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
  24. /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
  25. /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
  26. /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
  27. /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
  28. /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
  29. /**************************************************************************/
  30. #ifndef MACOS_MACHO_H
  31. #define MACOS_MACHO_H
  32. // Mach-O binary object file format parser and editor.
  33. #include "core/crypto/crypto.h"
  34. #include "core/crypto/crypto_core.h"
  35. #include "core/io/file_access.h"
  36. #include "core/object/ref_counted.h"
  37. class MachO : public RefCounted {
  38. struct MachHeader {
  39. uint32_t cputype;
  40. uint32_t cpusubtype;
  41. uint32_t filetype;
  42. uint32_t ncmds;
  43. uint32_t sizeofcmds;
  44. uint32_t flags;
  45. };
  46. enum LoadCommandID {
  47. LC_SEGMENT = 0x00000001,
  48. LC_SYMTAB = 0x00000002,
  49. LC_SYMSEG = 0x00000003,
  50. LC_THREAD = 0x00000004,
  51. LC_UNIXTHREAD = 0x00000005,
  52. LC_LOADFVMLIB = 0x00000006,
  53. LC_IDFVMLIB = 0x00000007,
  54. LC_IDENT = 0x00000008,
  55. LC_FVMFILE = 0x00000009,
  56. LC_PREPAGE = 0x0000000a,
  57. LC_DYSYMTAB = 0x0000000b,
  58. LC_LOAD_DYLIB = 0x0000000c,
  59. LC_ID_DYLIB = 0x0000000d,
  60. LC_LOAD_DYLINKER = 0x0000000e,
  61. LC_ID_DYLINKER = 0x0000000f,
  62. LC_PREBOUND_DYLIB = 0x00000010,
  63. LC_ROUTINES = 0x00000011,
  64. LC_SUB_FRAMEWORK = 0x00000012,
  65. LC_SUB_UMBRELLA = 0x00000013,
  66. LC_SUB_CLIENT = 0x00000014,
  67. LC_SUB_LIBRARY = 0x00000015,
  68. LC_TWOLEVEL_HINTS = 0x00000016,
  69. LC_PREBIND_CKSUM = 0x00000017,
  70. LC_LOAD_WEAK_DYLIB = 0x80000018,
  71. LC_SEGMENT_64 = 0x00000019,
  72. LC_ROUTINES_64 = 0x0000001a,
  73. LC_UUID = 0x0000001b,
  74. LC_RPATH = 0x8000001c,
  75. LC_CODE_SIGNATURE = 0x0000001d,
  76. LC_SEGMENT_SPLIT_INFO = 0x0000001e,
  77. LC_REEXPORT_DYLIB = 0x8000001f,
  78. LC_LAZY_LOAD_DYLIB = 0x00000020,
  79. LC_ENCRYPTION_INFO = 0x00000021,
  80. LC_DYLD_INFO = 0x00000022,
  81. LC_DYLD_INFO_ONLY = 0x80000022,
  82. LC_LOAD_UPWARD_DYLIB = 0x80000023,
  83. LC_VERSION_MIN_MACOSX = 0x00000024,
  84. LC_VERSION_MIN_IPHONEOS = 0x00000025,
  85. LC_FUNCTION_STARTS = 0x00000026,
  86. LC_DYLD_ENVIRONMENT = 0x00000027,
  87. LC_MAIN = 0x80000028,
  88. LC_DATA_IN_CODE = 0x00000029,
  89. LC_SOURCE_VERSION = 0x0000002a,
  90. LC_DYLIB_CODE_SIGN_DRS = 0x0000002b,
  91. LC_ENCRYPTION_INFO_64 = 0x0000002c,
  92. LC_LINKER_OPTION = 0x0000002d,
  93. LC_LINKER_OPTIMIZATION_HINT = 0x0000002e,
  94. LC_VERSION_MIN_TVOS = 0x0000002f,
  95. LC_VERSION_MIN_WATCHOS = 0x00000030,
  96. };
  97. struct LoadCommandHeader {
  98. uint32_t cmd;
  99. uint32_t cmdsize;
  100. };
  101. struct LoadCommandSegment {
  102. char segname[16];
  103. uint32_t vmaddr;
  104. uint32_t vmsize;
  105. uint32_t fileoff;
  106. uint32_t filesize;
  107. uint32_t maxprot;
  108. uint32_t initprot;
  109. uint32_t nsects;
  110. uint32_t flags;
  111. };
  112. struct LoadCommandSegment64 {
  113. char segname[16];
  114. uint64_t vmaddr;
  115. uint64_t vmsize;
  116. uint64_t fileoff;
  117. uint64_t filesize;
  118. uint32_t maxprot;
  119. uint32_t initprot;
  120. uint32_t nsects;
  121. uint32_t flags;
  122. };
  123. struct Section {
  124. char sectname[16];
  125. char segname[16];
  126. uint32_t addr;
  127. uint32_t size;
  128. uint32_t offset;
  129. uint32_t align;
  130. uint32_t reloff;
  131. uint32_t nreloc;
  132. uint32_t flags;
  133. uint32_t reserved1;
  134. uint32_t reserved2;
  135. };
  136. struct Section64 {
  137. char sectname[16];
  138. char segname[16];
  139. uint64_t addr;
  140. uint64_t size;
  141. uint32_t offset;
  142. uint32_t align;
  143. uint32_t reloff;
  144. uint32_t nreloc;
  145. uint32_t flags;
  146. uint32_t reserved1;
  147. uint32_t reserved2;
  148. uint32_t reserved3;
  149. };
  150. Ref<FileAccess> fa;
  151. bool swap = false;
  152. uint64_t lc_limit = 0;
  153. uint64_t exe_limit = 0;
  154. uint64_t exe_base = std::numeric_limits<uint64_t>::max(); // Start of first __text section.
  155. uint32_t align = 0;
  156. uint32_t cputype = 0;
  157. uint32_t cpusubtype = 0;
  158. uint64_t link_edit_offset = 0; // __LINKEDIT segment offset.
  159. uint64_t signature_offset = 0; // Load command offset.
  160. uint32_t seg_align(uint64_t p_vmaddr, uint32_t p_min, uint32_t p_max);
  161. bool alloc_signature(uint64_t p_size);
  162. static inline size_t PAD(size_t s, size_t a) {
  163. return (a - s % a);
  164. }
  165. public:
  166. static bool is_macho(const String &p_path);
  167. bool open_file(const String &p_path);
  168. uint64_t get_exe_base();
  169. uint64_t get_exe_limit();
  170. int32_t get_align();
  171. uint32_t get_cputype();
  172. uint32_t get_cpusubtype();
  173. uint64_t get_size();
  174. uint64_t get_code_limit();
  175. uint64_t get_signature_offset();
  176. bool is_signed();
  177. PackedByteArray get_cdhash_sha1();
  178. PackedByteArray get_cdhash_sha256();
  179. PackedByteArray get_requirements();
  180. const Ref<FileAccess> get_file() const;
  181. Ref<FileAccess> get_file();
  182. uint64_t get_signature_size();
  183. bool set_signature_size(uint64_t p_size);
  184. };
  185. #endif // MACOS_MACHO_H