extras/libdvdcss/css.h

   1 /*****************************************************************************
   2  * css.h: Structures for DVD authentification and unscrambling
   3  *****************************************************************************
   4  * Copyright (C) 1999-2001 VideoLAN
   5  * $Id: css.h,v 1.4 2001/07/11 02:01:03 sam Exp $
   6  *
   7  * Author: Stéphane Borel <stef@via.ecp.fr>
   8  *
   9  * based on:
  10  *  - css-auth by Derek Fawcus <derek@spider.com>
  11  *  - DVD CSS ioctls example program by Andrew T. Veliath <andrewtv@usa.net>
  12  *  - DeCSSPlus by Ethan Hawke
  13  *  - The Divide and conquer attack by Frank A. Stevenson <frank@funcom.com>
  14  *
  15  * This program is free software; you can redistribute it and/or modify
  16  * it under the terms of the GNU General Public License as published by
  17  * the Free Software Foundation; either version 2 of the License, or
  18  * (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, write to the Free Software
  27  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  28  *****************************************************************************/
  29 #define KEY_SIZE 5
  30
  31 typedef u8 dvd_key_t[KEY_SIZE];
  32
  33 typedef struct disc_s
  34 {
  35     u8              p_challenge[2*KEY_SIZE];
  36     dvd_key_t       p_key1;
  37     dvd_key_t       p_key2;
  38     dvd_key_t       p_key_check;
  39     u8              i_varient;
  40 } disc_t;
  41
  42 typedef struct title_key_s
  43 {
  44     int                 i_startlb;
  45     dvd_key_t           p_key;
  46     struct title_key_s *p_next;
  47 } title_key_t;
  48
  49 typedef struct css_s
  50 {
  51     int             i_agid;
  52     disc_t          disc;
  53     u8              p_disc_key[2048];
  54 } css_t;
  55
  56 /*****************************************************************************
  57  * Prototypes in css.c
  58  *****************************************************************************/
  59 struct css_s;
  60
  61 int   CSSTest             ( dvdcss_handle );
  62 int   CSSInit             ( dvdcss_handle );
  63 int   CSSGetKey           ( dvdcss_handle, int, dvd_key_t );
  64 int   CSSDescrambleSector ( u8 * , u8 * );
  65