| 1 | /*␊ |
| 2 | * Module Loading functionality␊ |
| 3 | * Copyright 2009 Evan Lojewski. All rights reserved.␊ |
| 4 | *␊ |
| 5 | */␊ |
| 6 | ␊ |
| 7 | /*␊ |
| 8 | * Copyright 2012 Cadet-petit Armel <armelcadetpetit@gmail.com>. All rights reserved.␊ |
| 9 | *␊ |
| 10 | * Cleaned, Added bundles support.␊ |
| 11 | *␊ |
| 12 | */␊ |
| 13 | ␊ |
| 14 | // There is a bug with the module system / rebasing / binding␊ |
| 15 | // that causes static variables to be incorrectly rebased or bound␊ |
| 16 | // Disable static variables for the moment␊ |
| 17 | // #define static␊ |
| 18 | ␊ |
| 19 | #ifndef __BOOT_MODULES_H␊ |
| 20 | #define __BOOT_MODULES_H␊ |
| 21 | ␊ |
| 22 | #include <mach-o/loader.h>␊ |
| 23 | #include <mach-o/nlist.h>␊ |
| 24 | #include "efi.h"␊ |
| 25 | ␊ |
| 26 | #define DEFAULT_BUNDLE_SPEC_SIZE 4096␊ |
| 27 | ␊ |
| 28 | ␊ |
| 29 | extern unsigned long long textAddress;␊ |
| 30 | extern unsigned long long textSection;␊ |
| 31 | ␊ |
| 32 | typedef struct symbolList_t␊ |
| 33 | {␊ |
| 34 | char* module;␊ |
| 35 | ␉char* symbol;␊ |
| 36 | ␉unsigned int addr;␊ |
| 37 | ␉struct symbolList_t* next;␊ |
| 38 | } symbolList_t;␊ |
| 39 | ␊ |
| 40 | typedef struct callbackList_t␊ |
| 41 | {␊ |
| 42 | ␉void(*callback)(void*, void*, void*, void*, void*, void*);␊ |
| 43 | ␉struct callbackList_t* next;␊ |
| 44 | } callbackList_t;␊ |
| 45 | ␊ |
| 46 | typedef struct moduleHook_t␊ |
| 47 | {␊ |
| 48 | ␉const char* name;␊ |
| 49 | ␉callbackList_t* callbacks;␊ |
| 50 | ␉struct moduleHook_t* next;␊ |
| 51 | } moduleHook_t;␊ |
| 52 | ␊ |
| 53 | #define SYMBOLS_BUNDLE "Symbols"␊ |
| 54 | ␊ |
| 55 | #define SYMBOL_DYLD_STUB_BINDER␉"dyld_stub_binder"␊ |
| 56 | #define SYMBOL_LOOKUP_SYMBOL␉"_lookup_symbol"␊ |
| 57 | #define STUB_ENTRY_SIZE␉6␊ |
| 58 | ␊ |
| 59 | #define SECT_NON_LAZY_SYMBOL_PTR␉"__nl_symbol_ptr"␊ |
| 60 | #define SECT_SYMBOL_STUBS␉␉␉"__symbol_stub"␊ |
| 61 | ␊ |
| 62 | #define SYS_CLASS "SYMS"␊ |
| 63 | #define SYSLIB_CLASS "SYS_LIB"␊ |
| 64 | ␊ |
| 65 | /*␊ |
| 66 | * Modules Interface␊ |
| 67 | * execute_hook␊ |
| 68 | *␉␉Exexutes a registered hook. All callbaks are␊ |
| 69 | *␉␉called in the same order that they were added␊ |
| 70 | *␊ |
| 71 | * register_hook_callback␊ |
| 72 | *␉␉registers a void function to be executed when a␊ |
| 73 | *␉␉hook is executed.␊ |
| 74 | */␊ |
| 75 | EFI_STATUS execute_hook(const char* name, void*, void*, void*, void*, void*, void*);␊ |
| 76 | VOID register_hook_callback(const char* name, void(*callback)(void*, void*, void*, void*, void*, void*));␊ |
| 77 | ␊ |
| 78 | void rebase_location(UInt32* location, char* base, int type);␊ |
| 79 | void bind_location(UInt32* location, char* value, UInt32 addend, int type);␊ |
| 80 | void rebase_macho(void* base, char* rebase_stream, UInt32 size);␊ |
| 81 | EFI_STATUS bind_macho(char* module, void* base, char* bind_stream, UInt32 size);␊ |
| 82 | ␊ |
| 83 | long long add_symbol(char* module,char* symbol, long long addr, char is64);␊ |
| 84 | ␊ |
| 85 | unsigned int parse_mach(char *module, void* binary, long long(*symbol_handler)(char*, char*, long long, char));␊ |
| 86 | ␊ |
| 87 | unsigned int handle_symtable(char *module, UInt32 base,␊ |
| 88 | ␉␉␉␉␉␉␉ struct symtab_command* symtabCommand,␊ |
| 89 | ␉␉␉␉␉␉␉ long long(*symbol_handler)(char*, char*, long long, char),␊ |
| 90 | ␉␉␉␉␉␉␉ char is64);␊ |
| 91 | ␊ |
| 92 | unsigned int lookup_all_symbols(const char* module, const char* name);␊ |
| 93 | ␊ |
| 94 | EFI_STATUS replace_function(const char* module, const char* symbol, void* newAddress);␊ |
| 95 | EFI_STATUS replace_system_function(const char* symbol, void* newAddress);␊ |
| 96 | EFI_STATUS replace_function_any(const char* symbol, void* newAddress);␊ |
| 97 | ␊ |
| 98 | extern unsigned int (*lookup_symbol)(const char*, int(*strcmp_callback)(const char*, const char*));␊ |
| 99 | ␊ |
| 100 | ␊ |
| 101 | long InitBundleSupport(void);␊ |
| 102 | long FileLoadBundles(char *dirSpec, long plugin);␊ |
| 103 | long LoadBundlePList(char *dirSpec, char *name, long bundleType);␊ |
| 104 | long LoadMatchedBundles(void);␊ |
| 105 | long MatchBundlesLibraries(void);␊ |
| 106 | long LoadBundles( char * dirSpec );␊ |
| 107 | void * GetBundleDict( char * bundle_id );␊ |
| 108 | void * GetBundlePersonality( char * bundle_id );␊ |
| 109 | char * GetBundlePath( char * bundle_id );␊ |
| 110 | ␊ |
| 111 | #endif /* __BOOT_MODULES_H */ |
