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| Source at commit 564 created 13 years 6 months ago. By meklort, Removed warnings. | |
|---|---|
| 1 | /*␊ |
| 2 | * Copyright (c) 2010 Evan Lojewski. All rights reserved.␊ |
| 3 | *␉␊ |
| 4 | *␉KextPather␊ |
| 5 | *␉This is an experimental module that I'm looking into implimenting.␊ |
| 6 | *␉The main purpose is to replace the need for programs such as ␊ |
| 7 | * NetbookInstaller's kext patching routines. THis way, Apple's kexts can be␊ |
| 8 | * patched whe loaded instead. (eg: GMA950 kext, Bluetooth + Wifi kexts)␊ |
| 9 | */␊ |
| 10 | ␊ |
| 11 | #include "libsaio.h"␊ |
| 12 | #include "kext_patcher.h"␊ |
| 13 | #include "pci.h"␊ |
| 14 | #include "drivers.h"␊ |
| 15 | #include "mkext.h"␊ |
| 16 | #include "modules.h"␊ |
| 17 | ␊ |
| 18 | ␊ |
| 19 | void KextPatcher_hook(void* current, void* arg2, void* arg3, void* arg4);␊ |
| 20 | ␊ |
| 21 | /**␊ |
| 22 | ** KextPatcher_start -> module start␊ |
| 23 | **␉␉Notified the module system that this module will hook into the ␊ |
| 24 | **␉␉LoadMatchedModules and LoadDriverMKext functions␊ |
| 25 | **/␊ |
| 26 | void KextPatcher_start()␊ |
| 27 | {␉␉␊ |
| 28 | ␉// Hooks into the following:␊ |
| 29 | ␉//␉execute_hook("LoadDriverMKext", (void*)package, (void*) length, NULL, NULL);␊ |
| 30 | ␉// execute_hook("LoadMatchedModules", module, &length, executableAddr, NULL);␊ |
| 31 | ␊ |
| 32 | ␉register_hook_callback("PCIDevice", &KextPatcher_hook);␊ |
| 33 | ␉register_hook_callback("LoadMatchedModules", &kext_loaded); ␊ |
| 34 | ␉register_hook_callback("LoadDriverMKext", &mkext_loaded); ␊ |
| 35 | ␊ |
| 36 | }␊ |
| 37 | ␊ |
| 38 | /**␊ |
| 39 | ** kext_loaded -> Called whenever a kext is in read into memory␊ |
| 40 | **␉␉This function will be used to patch kexts ( eg AppleInteIntegratedFramebuffer)␊ |
| 41 | **␉␉and their plists when they are loaded into memmory␊ |
| 42 | **/␊ |
| 43 | void kext_loaded(void* moduletmp, void* lengthprt, void* executableAddr, void* arg3)␊ |
| 44 | {␊ |
| 45 | ␉/*␊ |
| 46 | ␉ModulePtr module = moduletmp;␊ |
| 47 | ␉long length = *(long*)lengthprt;␊ |
| 48 | ␉//long length2 = strlen(module->plistAddr);␊ |
| 49 | ␉// *(long*)lengthprt = length2 + 5 * 1024 * 1024;␊ |
| 50 | ␊ |
| 51 | ␉printf("Loading %s, lenght is %d (%d), executable is 0x%X\n", module->plistAddr, length, length2, executableAddr);␊ |
| 52 | ␉getc();␊ |
| 53 | ␉ */␊ |
| 54 | }␊ |
| 55 | ␊ |
| 56 | /**␊ |
| 57 | ** mkext_loaded -> Called whenever an mkext is in read into memory␊ |
| 58 | **␉␉This function will be used to patch mkext. Matching kexts will be␊ |
| 59 | **␉␉Extracted, modified, and then compressed again. Note: I need to determine␊ |
| 60 | **␉␉what sort of slowdown this will cause and if it's worth implimenting.␊ |
| 61 | **/␊ |
| 62 | ␊ |
| 63 | void mkext_loaded(void* filespec, void* packagetmp, void* length, void* arg3)␊ |
| 64 | {␊ |
| 65 | ␉/*␊ |
| 66 | ␉DriversPackage * package = packagetmp;␊ |
| 67 | ␉printf("Loading %s, length %d\n", filespec, length);␊ |
| 68 | ␉getc();␊ |
| 69 | ␉ */␊ |
| 70 | }␊ |
| 71 | ␊ |
| 72 | void KextPatcher_hook(void* arg1, void* arg2, void* arg3, void* arg4)␊ |
| 73 | {␊ |
| 74 | ␉//pci_dt_t* current = arg1;␊ |
| 75 | } |
