Chameleon

Chameleon Commit Details

Date:2010-08-31 06:20:07 (8 years 10 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 intrecoveryMode;
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