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#define MODULE
#define __KERNEL__
#include <linux/module.h>
#include <linux/kernel.h>
#include <sys/syscall.h>
#include <linux/smp_lock.h>
#include <linux/capability.h>
struct task_struct *init_hook = NULL;
extern void *sys_call_table[];
int (*o_ptrace)(int, int, int, int);
int n_ptrace(int req, int pid, int addr, int data)
{
int r;
r = o_ptrace(req, pid, addr, data);
printk ("PTRACE (%08x, %08x, %08x, %08x) = %08x\n", req, pid, addr, data, r);
return (r);
}
#define REPLACE(x) o_##x = sys_call_table[__NR_##x];\
sys_call_table[__NR_##x] = n_##x
int init_module(void)
{
lock_kernel();
EXPORT_NO_SYMBOLS;
REPLACE(ptrace);
unlock_kernel();
return(0);
}
#define RESTORE(x) sys_call_table[__NR_##x] = o_##x
int cleanup_module(void)
{
lock_kernel();
RESTORE(ptrace);
unlock_kernel();
return(0);
}
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