Reverse Engineering: from Objective-C to Swift

逆向工程：从 Objective-C 到 Swift
2016年4月23日在 SwiftCon China 2016 上的分享

Transcript

1. 逆向⼯程 从 OBJ-C 到 SWIFT @HANKBAO 瀑布IM
2. 什么是逆向⼯程? Ӟᐿದ๞ᬦᑕ҅ܨ੒ӞᶱፓຽԾߝᬰᤈᭋݻړຉ݊Ꮈᑪ҅՗ᘒᄍ ᕩଚ஑ڊᧆԾߝጱ॒ቘၞᑕ̵ᕟᕢᕮ຅̵ۑᚆ௔ᚆᥢ໒ᒵᦡᦇᥝ ᔰ҅զګ֢ڊۑᚆፘᬪ݈҅֕ӧਠقӞ໏ጱԾߝ̶ — ᖌचጯᑀ
3. 逆向⼯程的⽬标 ▸ ਍ԟ ▸ ᦡᦇ ▸ ਫሿ ▸ ᓒဩ ▸ ᴻᲙ ▸ ಘ઀ ▸ ൊկ
4. APP 插件
6. DEMO
7. DEMO: NON-FRAGILE LAYOUT
8. X86_64 调⽤约定 ▸ arg1: $rdi ▸ arg2: $rsi ▸ arg3: $rdx ▸ arg4: $rcx ▸ arg5: $r8 ▸ arg6: $r9 ▸ ret1: $rax ▸ ret2: $rdx ▸ indirect: $rax (== $rdi)
9. OBJECTIVE-C 调⽤约定 ▸ arg1: $rdi -> self ▸ arg2: $rsi -> _cmd ▸ arg3: $rdx ▸ arg4: $rcx ▸ arg5: $r8 ▸ arg6: $r9 ▸ ret: $rax
10. SWIFT REPL
11. DEMO: STRUCT
12. DEMO
13. SWIFT-DEMANGLE $ xcrun swift-demangle _TFV9DictSwift11QueryRecordg4termSS _TFV9DictSwift11QueryRecordg4termSS ---> DictSwift.QueryRecord.term.getter : Swift.String
14. DEMO
15. SWIFT NATIVE 调⽤约定 ▸ arg1: $rdi ▸ arg2: $rsi ▸ arg3: $rdx ▸ arg4: $rcx ▸ arg5: $r8 ▸ arg6: $r9 ▸ ret1: $rax ▸ ret2: $rdx ▸ ret3: $rcx ▸ indirect: $rax (== $rdi)
16. DEMO
17. DEMO
18. DEMO
19. DEMO
20. DEMO
21. DEMO
22. DEMO
23. DEMO
24. ᕑੰҘѺ
25. DEMO
26. DEMO
27. 逆向⼯程理论基础 ▸ C / C++ / Objective-C / Swift ▸ Assembly (x86, x86_64, arm / thumb, arm64) ▸ ଘݣ ABI / ᧍᥺ᇙਧ ABI ▸ ᖫᦲ࢏ս۸ ▸ ඙֢ᔮᕹ
28. 逆向⼯程⽅法和⼯具 ▸ ᶉாړຉ ▸ Hopper Disassembler ▸ IDA Pro ▸ otool ▸ class-dump ▸ ۖா᧣ᦶ ▸ lldb / gdb ▸ F-Script ▸ cycript
29. 参考资料 ▸ Wikipedia ▸ System V Application Binary Interface (AMD64) ▸ Procedure Call Standard for the ARM 64-bit Architecture ▸ iOS ABI Function Call Guide ▸ The Swift ABI ▸ The Swift Calling Convention ▸ Friday Q&A
30. 相关资源 ▸ https://github.com/apple/swift ▸ https://github.com/hankbao/DictObjc ▸ https://github.com/hankbao/DictSwift
31. THANKS Q & A