Chameleon

Chameleon Commit Details

Date:2010-08-31 06:20:07 (13 years 9 months ago)
Author:Evan Lojewski
Commit:458
Parents: 457
Message:Modified make file. Created initial module for patching kexts + associated hooks that may be needed. Subject to change and may be removed if deemed unusable / impractical. Untested.
Changes:
A/branches/meklort/i386/modules/KextPatcher/Makefile
A/branches/meklort/i386/modules/KextPatcher
A/branches/meklort/i386/modules/KextPatcher/kext_patcher.c
A/branches/meklort/i386/modules/KextPatcher/kext_patcher.h
M/branches/meklort/i386/modules/KernelPatcher/Makefile
M/branches/meklort/i386/boot2/drivers.c

File differences

branches/meklort/i386/boot2/drivers.c
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#include "bootstruct.h"␊
#include "xml.h"␊
#include "ramdisk.h"␊
#include "modules.h"␊
␊
␊
extern char gMacOSVersion;␊
extern int␉recoveryMode;␊
␊
length = LoadThinFatFile(fileSpec, (void **)&package);␊
if (length < sizeof (DriversPackage)) return -1;␊
␊
␉// call hook to notify modules that the mkext has been loaded␊
␉execute_hook("LoadDriverMKext", (void*)fileSpec, (void*)package, (void*) length, NULL);␊
␊
␉␊
// Verify the MKext.␊
if (( GetPackageElement(signature1) != kDriverPackageSignature1) ||␊
( GetPackageElement(signature2) != kDriverPackageSignature2) ||␊
{␊
return -1;␊
}␊
␉␊
␊
// Make space for the MKext.␊
driversLength = GetPackageElement(length);␊
␉␉//}␊
␊
// Make make in the image area.␊
␉␉␉␉␊
␉␉␉␉execute_hook("LoadMatchedModules", module, &length, executableAddr, NULL);␊
␊
driverLength = sizeof(DriverInfo) + module->plistLength + length + module->bundlePathLength;␊
driverAddr = AllocateKernelMemory(driverLength);␊
␊
branches/meklort/i386/modules/KextPatcher/kext_patcher.c
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/*␊
* Copyright (c) 2010 Evan Lojewski. All rights reserved.␊
*␉␊
*␉KextPather␊
*␉This is an experimental module that I'm looking into implimenting.␊
*␉The main purpose is to replace the need for programs such as ␊
* NetbookInstaller's kext patching routines. THis way, Apple's kexts can be␊
* patched whe loaded instead. (eg: GMA950 kext, Bluetooth + Wifi kexts)␊
*/␊
␊
#include "libsaio.h"␊
#include "kext_patcher.h"␊
//#include "platform.h"␊
#include "modules.h"␊
␊
//extern PlatformInfo_t Platform;␊
␊
/**␊
** KextPatcher_start -> module start␊
**␉␉Notified the module system that this module will hook into the ␊
**␉␉LoadMatchedModules and LoadDriverMKext functions␊
**/␊
void KextPatcher_start()␊
{␉␉␊
␉// Hooks into the following:␊
␉//␉execute_hook("LoadDriverMKext", (void*)package, (void*) length, NULL, NULL);␊
␉// execute_hook("LoadMatchedModules", module, &length, executableAddr, NULL);␊
␊
␉register_hook_callback("LoadMatchedModules", &kext_loaded); ␊
␉register_hook_callback("LoadDriverMKext", &mkext_loaded); ␊
␊
}␊
␊
/**␊
** kext_loaded -> Called whenever a kext is in read into memory␊
**␉␉This function will be used to patch kexts ( eg AppleInteIntegratedFramebuffer)␊
**␉␉and their plists when they are loaded into memmory␊
**/␊
void kext_loaded(void* module, void* length, void* executableAddr, void* arg3)␊
{␊
}␊
␊
/**␊
** mkext_loaded -> Called whenever an mkext is in read into memory␊
**␉␉This function will be used to patch mkext. Matching kexts will be␊
**␉␉Extracted, modified, and then compressed again. Note: I need to determine␊
**␉␉what sort of slowdown this will cause and if it's worth implimenting.␊
**/␊
␊
void mkext_loaded(void* filespec, void* package, void* lenght, void* arg3)␊
{␊
}
branches/meklort/i386/modules/KextPatcher/kext_patcher.h
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/*␊
* Copyright (c) 2009 Evan Lojewski. All rights reserved.␊
*␊
*/␊
#ifndef __BOOT2_KERNEL_PATCHER_H␊
#define __BOOT2_KERNEL_PATCHER_H␊
␊
␊
void KextPatcher_start();␊
␊
void kext_loaded(void* module, void* length, void* executableAddr, void* arg3);␊
void mkext_loaded(void* filespec, void* package, void* lenght, void* arg3);␊
␊
␊
#endif /* !__BOOT2_KERNEL_PATCHER_H */␊
branches/meklort/i386/modules/KextPatcher/Makefile
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␊
MODULE_NAME = KextPatcher␊
MODULE_VERSION = "1.0.0"␊
MODULE_COMPAT_VERSION = "1.0.0"␊
MODULE_START = _$(MODULE_NAME)_start␊
MODULE_DEPENDENCIES = ␊
␊
DIR = KextPatcher␊
␊
include ../../MakePaths.dir␊
␊
OBJROOT=../../../obj/i386/modules/$(DIR)␊
SYMROOT=../../../sym/i386/modules/␊
DSTROOT=../../../dst/i386/modules/␊
␊
␊
UTILDIR = ../../util␊
LIBSADIR = ../../libsa␊
LIBSAIODIR = ../../libsaio␊
BOOT2DIR = ../../boot2␊
␊
INSTALLDIR = $(DSTROOT)/System/Library/Frameworks/System.framework/Versions/B/PrivateHeaders/standalone␊
␊
OPTIM = -Os -Oz␊
DEBUG = -DNOTHING␊
#DEBUG = -DDEBUG_HELLO_WORLD=1␊
CFLAGS␉= $(RC_CFLAGS) $(OPTIM) $(MORECPP) -arch i386 -g -Wmost \␊
-D__ARCHITECTURE__=\"i386\" -DSAIO_INTERNAL_USER \␊
-DRCZ_COMPRESSED_FILE_SUPPORT $(DEBUG) \␊
-fno-builtin $(OMIT_FRAME_POINTER_CFLAG) \␊
-mpreferred-stack-boundary=2 -fno-align-functions -fno-stack-protector \␊
-march=pentium4 -msse2 -mfpmath=sse -msoft-float -fno-common -mdynamic-no-pic␊
␊
DEFINES=␊
CONFIG = hd␊
INC = -I. -I.. -I$(SYMROOT) -I$(UTILDIR) -I$(LIBSADIR) -I$(LIBSAIODIR) -I$(BOOT2DIR)␊
ifneq "" "$(wildcard /bin/mkdirs)"␊
MKDIRS = /bin/mkdirs␊
else␊
MKDIRS = /bin/mkdir -p␊
endif␊
AS = as␊
LD = ld␊
# LIBS= -lc_static␊
LIBS=␊
␊
VPATH = $(OBJROOT):$(SYMROOT)␊
␊
OBJS = kext_patcher.o␊
␊
␊
SFILES =␊
CFILES = ␊
HFILES = ␊
EXPORTED_HFILES =␊
INSTALLED_HFILES =␊
OTHERFILES = Makefile␊
ALLSRC = $(SFILES) $(CFILES) \␊
␉$(HFILES) $(OTHERFILES)␊
DIRS_NEEDED = $(OBJROOT) $(SYMROOT)␊
␊
all embedtheme: ${OBJS} dylib␊
␊
␊
dylib: ${OBJS}␊
␉ld -flat_namespace -arch i386 \␊
␉-undefined suppress \␊
␉-alias $(MODULE_START) start \␊
␉-dylib -read_only_relocs suppress \␊
␉-S -x -dead_strip_dylibs \␊
␉-no_uuid \␊
␉-bind_at_load \␊
␉-current_version $(MODULE_VERSION) -compatibility_version $(MODULE_COMPAT_VERSION) \␊
␉-final_output $(MODULE_NAME) \␊
␉-weak_library $(SYMROOT)/Symbols.dylib \␊
␉$(OBJROOT)/kext_patcher.o -o $(SYMROOT)/$(MODULE_NAME).dylib␊
␊
␊
kext_patcher.o: ␉␊
␉$(CC) $(CPPFLAGS) $(CFLAGS) $(DEFINES) -c "kext_patcher.c" $(INC) -o "$(OBJROOT)/kext_patcher.o"␊
␊
include ../../MakeInc.dir␊
␊
# dependencies␊
-include $(OBJROOT)/Makedep␊
branches/meklort/i386/modules/KernelPatcher/Makefile
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MODULE_START = _$(MODULE_NAME)_start␊
MODULE_DEPENDENCIES = ␊
␊
DIR = HelloWorld␊
DIR = KernelPatcher␊
␊
include ../../MakePaths.dir␊
␊
␉-current_version $(MODULE_VERSION) -compatibility_version $(MODULE_COMPAT_VERSION) \␊
␉-final_output $(MODULE_NAME) \␊
␉-weak_library $(SYMROOT)/Symbols.dylib \␊
␉-weak_library $(SYMROOT)/HelloWorld.dylib \␊
␉$(OBJROOT)/kernel_patcher.o -o $(SYMROOT)/$(MODULE_NAME).dylib␊
␊
␊

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Revision: 458