KextInject.c File Reference

#include <Library/DebugLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/OcTemplateLib.h>
#include <Library/OcSerializeLib.h>
#include <Library/OcMiscLib.h>
#include <Library/OcAppleKernelLib.h>
#include <string.h>
#include <sys/time.h>
#include <UserFile.h>

Go to the source code of this file.

Functions
STATIC VOID	ApplyKextPatches (IN OUT PRELINKED_CONTEXT *Context)
VOID	ApplyKernelPatches (IN OUT UINT8 *Kernel, IN UINT32 Size)
EFI_STATUS	OcGetFileData (IN EFI_FILE_PROTOCOL *File, IN UINT32 Position, IN UINT32 Size, OUT UINT8 *Buffer)
EFI_STATUS	OcGetFileSize (IN EFI_FILE_PROTOCOL *File, OUT UINT32 *Size)
int	WrapMain (int argc, char *argv[])
int	LLVMFuzzerTestOneInput (const uint8_t *Data, size_t Size)
int	ENTRY_POINT (int argc, char *argv[])

Variables
STATIC BOOLEAN	FailedToProcess = FALSE
STATIC UINT32	KernelVersion = 0
STATIC EFI_FILE_PROTOCOL	NilFileProtocol
STATIC UINT8 *	mPrelinked = NULL
STATIC UINT32	mPrelinkedSize = 0
STATIC CONST CHAR8	KextInfoPlistData []
STATIC CONST UINT8	DisableIOAHCIPatchReplace []
STATIC PATCHER_GENERIC_PATCH	DisableIOAHCIPatch
STATIC CONST UINT8	DisableKernelLog []
STATIC PATCHER_GENERIC_PATCH	DisableIoLogPatch

Detailed Description

Copyright (C) 2018, vit9696. All rights reserved.

All rights reserved.

This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this distribution. The full text of the license may be found at http://opensource.org/licenses/bsd-license.php

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

Definition in file KextInject.c.

Function Documentation

ApplyKernelPatches()

VOID ApplyKernelPatches	(	IN OUT UINT8 *	Kernel,
		IN UINT32	Size )

Definition at line 427 of file KextInject.c.

ApplyKextPatches()

STATIC VOID ApplyKextPatches

(

IN OUT PRELINKED_CONTEXT *

Context

)

Definition at line 228 of file KextInject.c.

ENTRY_POINT()

int ENTRY_POINT	(	int	argc,
		char *	argv[] )

Definition at line 919 of file KextInject.c.

LLVMFuzzerTestOneInput()

int LLVMFuzzerTestOneInput	(	const uint8_t *	Data,
		size_t	Size )

< FIXME: has no executable

Definition at line 859 of file KextInject.c.

OcGetFileData()

EFI_STATUS OcGetFileData	(	IN EFI_FILE_PROTOCOL *	File,
		IN UINT32	Position,
		IN UINT32	Size,
		OUT UINT8 *	Buffer )

Read exact amount of bytes from EFI_FILE_PROTOCOL at specified position.

Parameters

[in]	File	A pointer to the file protocol.
[in]	Position	Position to read data from.
[in]	Size	The size of the data read.
[out]	Buffer	A pointer to previously allocated buffer to read data to.

Return values

EFI_SUCCESS

on success.

Definition at line 556 of file KextInject.c.

OcGetFileSize()

EFI_STATUS OcGetFileSize	(	IN EFI_FILE_PROTOCOL *	File,
		OUT UINT32 *	Size )

Determine file size if it is less than 4 GB.

Parameters

[in]	File	A pointer to the file protocol.
[out]	Size	32-bit file size.

Return values

EFI_SUCCESS

on success.

Definition at line 574 of file KextInject.c.

WrapMain()

int WrapMain	(	int	argc,
		char *	argv[] )

Definition at line 585 of file KextInject.c.

Variable Documentation

DisableIOAHCIPatch

STATIC PATCHER_GENERIC_PATCH DisableIOAHCIPatch

Initial value:

= {
  .Base        = "__ZN10IOAHCIPort5startEP9IOService",
  .Find        = NULL,
  .Mask        = NULL,
  .Replace     = DisableIOAHCIPatchReplace,
  .ReplaceMask = NULL,
  .Size        = sizeof (DisableIOAHCIPatchReplace),
  .Count       = 1,
  .Skip        = 0
}

Definition at line 197 of file KextInject.c.

DisableIOAHCIPatchReplace

STATIC CONST UINT8 DisableIOAHCIPatchReplace[]

Initial value:

= {
  0x31, 0xC0, 0xC3 
}

Definition at line 191 of file KextInject.c.

DisableIoLogPatch

STATIC PATCHER_GENERIC_PATCH DisableIoLogPatch

Initial value:

= {
  .Base    = "_IOLog",
  .Find    = NULL,
  .Mask    = NULL,
  .Replace = DisableKernelLog,
  .Size    = sizeof (DisableKernelLog),
  .Count   = 1,
  .Skip    = 0
}

Definition at line 216 of file KextInject.c.

DisableKernelLog

STATIC CONST UINT8 DisableKernelLog[]

Initial value:

= {
  0xC3
}

Definition at line 210 of file KextInject.c.

FailedToProcess

STATIC BOOLEAN FailedToProcess = FALSE

Definition at line 27 of file KextInject.c.

KernelVersion

STATIC UINT32 KernelVersion = 0

Definition at line 28 of file KextInject.c.

KextInfoPlistData

STATIC CONST CHAR8 KextInfoPlistData[]

Definition at line 37 of file KextInject.c.

mPrelinked

STATIC UINT8* mPrelinked = NULL

Definition at line 32 of file KextInject.c.

mPrelinkedSize

STATIC UINT32 mPrelinkedSize = 0

Definition at line 33 of file KextInject.c.

NilFileProtocol

STATIC EFI_FILE_PROTOCOL NilFileProtocol

Definition at line 30 of file KextInject.c.