mirror of
https://github.com/gatieme/LDD-LinuxDeviceDrivers.git
synced 2026-08-20 22:04:56 +08:00
122 lines
3.7 KiB
C
122 lines
3.7 KiB
C
/*
|
|
* Author: HIT CS HDMC team.
|
|
* Create: 2010-3-12 8:20:01
|
|
* Last modified: 2010-6-13 14:13:47
|
|
*/
|
|
|
|
#ifndef _MEMORY_ENGINE_H
|
|
#define _MEMORY_ENGINE_H
|
|
|
|
/*
|
|
* common include header files
|
|
*/
|
|
|
|
|
|
#include <linux/version.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/string.h>
|
|
#include <linux/kprobes.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/fs.h>
|
|
#include <linux/mount.h>
|
|
#include <linux/dcache.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/highmem.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/uaccess.h>
|
|
#include <linux/kallsyms.h>
|
|
#include <linux/kprobes.h>
|
|
#include <asm/pgtable.h>
|
|
#include <asm/page.h>
|
|
|
|
#include "common.h"
|
|
|
|
|
|
#define MAX_LINE 256 /// max length of a line
|
|
#define DELIMITER '\n' /// the char is used to split the taskinfo
|
|
#define PERMISSION 0644 /// proc node permission
|
|
/*
|
|
* return values
|
|
*/
|
|
#define OK 0
|
|
#define FAIL -1
|
|
#define PGD_NONE -2
|
|
#define PUD_NONE -3
|
|
#define PMD_NONE -4
|
|
#define PTE_NONE -5
|
|
#define PTE_NOT_PRESENT -6
|
|
|
|
|
|
|
|
/*
|
|
* request command
|
|
*/
|
|
#define REQUEST_TASK_INFO 1 /// get a task's memory map information
|
|
#define REQUEST_V2P 2 /// convert a process's linear address to physical address
|
|
#define REQUEST_KV2P 3 /// convert kernel virtual address to physical address
|
|
#define REQUEST_KFUNC_VA 4 /// get kernel function's addr(kernel virtual address)
|
|
#define REQUEST_READ_KFUNC 5 /// 请求读取内核函数起始地址内容
|
|
#define REQUEST_WRITE_KFUNC 6 /// 请求改写内核函数起始地址内容
|
|
///#define REQUEST_WRITE 10 /// 请求改写指定物理地址内容，改为用户态实现此功能
|
|
///#define REQUEST_MEM 11 /// 请求获取全部物理内存信息
|
|
///#define REQUEST_ADDR_STOP 12 ///
|
|
|
|
/*
|
|
* ack signals
|
|
*/
|
|
#define ACK_TASK_INFO REQUEST_TASK_INFO
|
|
#define ACK_V2P REQUEST_V2P
|
|
#define ACK_KV2P REQUEST_KV2P
|
|
#define ACK_KFUNC_VA REQUEST_KFUNC_VA
|
|
#define ACK_READ_KFUNC REQUEST_READ_KFUNC
|
|
#define ACK_WRITE_KFUNC REQUEST_WRITE_KFUNC
|
|
///#define REQUEST_WRITE REQUEST_WRITE
|
|
///#define ACK_MEM REQUEST_MEM
|
|
///#define ACK_ADDR_STOP REQUEST_ADDR_STOP
|
|
|
|
/*
|
|
* utility functions
|
|
*/
|
|
static int handler_pre_kFunc(struct kprobe *p, struct pt_regs *regs);
|
|
|
|
struct task_struct *findTaskByPid(pid_t pid);
|
|
|
|
long v2p(struct mm_struct *pMM,unsigned long va,int *pStatus);
|
|
|
|
long kv2p(unsigned long va,int *pStatus);
|
|
|
|
long kFunc2v(char *funcName);
|
|
|
|
struct vm_area_struct * getVMA(struct mm_struct *pMM,unsigned long va);
|
|
|
|
pte_t * getPte(struct mm_struct *pMM,unsigned long va);
|
|
|
|
int setVMAFlags(struct mm_struct *pMM,unsigned long va,int *pStatus,int flags);
|
|
|
|
int setPageFlags(struct mm_struct *pMM,unsigned long va,int *pStatus,int flags);
|
|
|
|
int getTaskInfo(struct task_struct *pTask, char *pData, int length);
|
|
|
|
/*
|
|
* proc entry function
|
|
*/
|
|
int proc_write_pid(struct file *file,const char __user *buffer,unsigned long count,void * data);
|
|
|
|
int proc_read_virtualAddr(char * page,char **start, off_t off, int count, int * eof,void * data);
|
|
int proc_write_virtualAddr(struct file *file,const char *buffer,unsigned long count,void * data);
|
|
|
|
int proc_write_ctl(struct file *file,const char *buffer,unsigned long count,void * data);
|
|
|
|
int proc_read_signal(char * page,char **start, off_t off, int count, int * eof,void * data);
|
|
int proc_write_signal(struct file *file,const char *buffer,unsigned long count,void * data);
|
|
|
|
int proc_read_pa(char * page,char **start, off_t off, int count, int * eof,void * data);
|
|
|
|
static int jforce_sig_info(int sig,struct siginfo *info,struct task_struct *t);
|
|
|
|
|
|
#endif
|
|
|