--- kernel/linux/main.c.orig	2015-05-05 00:16:41 UTC
+++ kernel/linux/main.c
@@ -1,96 +0,0 @@
-// Copyright 2004-present Facebook. All Rights Reserved.
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/file.h>
-#include <linux/fdtable.h>
-#include <linux/dcache.h>
-#include <linux/syscalls.h>
-#include <linux/fs.h>
-#include <linux/fcntl.h>
-#include <linux/slab.h>
-#include <linux/mutex.h>
-#include <linux/kallsyms.h>
-#include <linux/sched.h>
-#include <linux/dirent.h>
-#include <linux/reboot.h>
-#include <linux/notifier.h>
-#include <linux/kobject.h>
-#include <asm/syscall.h>
-
-#include "sysfs.h"
-#include "hash.h"
-#ifdef HIDE_ME
-  #include "hide.h"
-#endif
-
-extern struct kobject *camb_kobj;
-char *module_str = "camb";
-
-static unsigned long **syscall_table = (unsigned long **) SYSCALL_BASE_ADDR;
-static unsigned long *syscall_table_copy[NR_syscalls];
-
-/* Allow writes to executable memory pages */
-void en_mem_wr(void) {
-  write_cr0(read_cr0() & (~0x10000));
-}
-
-/* Disallow writes to executable memory pages */
-void dis_mem_wr(void) {
-  write_cr0(read_cr0() | 0x10000);
-}
-
-int syscall_addr_modified_show(struct kobject *obj,
-                               struct attribute *attr,
-                               char *buf) {
-  unsigned int i = -1, mod = 0, ret;
-
-  while(++i < NR_syscalls)
-    if (syscall_table[i] != syscall_table_copy[i])
-      mod = 1;
-  ret = scnprintf(buf, PAGE_SIZE, "%d\n", mod);
-
-  return ret;
-}
-
-/* Copy the system call pointer table  */
-void grab_syscall_table(void) {
-  unsigned int i;
-  for (i = 0; i < NR_syscalls; i++)
-    syscall_table_copy[i] = syscall_table[i];
-}
-
-static int __init camb_init(void) {
-  printk(KERN_INFO "[%s] init\n", module_str);
-
-  if (expose_sysfs()) {
-    printk(KERN_ERR "Cannot expose self to sysfs\n");
-    return -1;
-  }
-
-  /* Hide the fact that we're monitoring the system for tampering */
-#ifdef HIDE_ME
-  hide_me();
-#endif
-
-  grab_syscall_table();
-
-  return 0;
-}
-
-static void __exit camb_exit(void) {
-  printk(KERN_INFO "[%s] exit\n", module_str);
-
-  if (camb_kobj) {
-    kobject_put(camb_kobj);
-  }
-
-}
-
-module_init(camb_init);
-module_exit(camb_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("@unixist");
-MODULE_DESCRIPTION("Detect kernel tampering");