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css.h    57 lines (51 with data), 2.3 kB

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/*****************************************************************************
* css.h: Structures for DVD authentication and unscrambling
*****************************************************************************
* Copyright (C) 1999-2001 VideoLAN
* $Id: css.h,v 1.8 2002/12/05 10:24:42 sam Exp $
*
* Author: Stéphane Borel <stef@via.ecp.fr>
*
* based on:
* - css-auth by Derek Fawcus <derek@spider.com>
* - DVD CSS ioctls example program by Andrew T. Veliath <andrewtv@usa.net>
* - DeCSSPlus by Ethan Hawke
* - The Divide and conquer attack by Frank A. Stevenson <frank@funcom.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
#define KEY_SIZE 5
typedef uint8_t dvd_key_t[KEY_SIZE];
typedef struct dvd_title_s
{
int i_startlb;
dvd_key_t p_key;
struct dvd_title_s *p_next;
} dvd_title_t;
typedef struct css_s
{
int i_agid; /* Current Authenication Grant ID. */
dvd_key_t p_bus_key; /* Current session key. */
dvd_key_t p_disc_key; /* This DVD disc's key. */
dvd_key_t p_title_key; /* Current title key. */
} css_t;
/*****************************************************************************
* Prototypes in css.c
*****************************************************************************/
int _dvdcss_test ( dvdcss_t );
int _dvdcss_title ( dvdcss_t, int );
int _dvdcss_disckey ( dvdcss_t );
int _dvdcss_titlekey ( dvdcss_t, int , dvd_key_t );
int _dvdcss_unscramble ( uint8_t *, uint8_t * );