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-rw-r--r--Copyright8
-rw-r--r--libdvdcss/bsdi_dvd.h344
-rw-r--r--libdvdcss/common.h85
-rw-r--r--libdvdcss/css.c1731
-rw-r--r--libdvdcss/css.h63
-rw-r--r--libdvdcss/csstables.h395
-rw-r--r--libdvdcss/device.c1090
-rw-r--r--libdvdcss/device.h64
-rw-r--r--libdvdcss/dvdcss/dvdcss.h107
-rw-r--r--libdvdcss/error.c68
-rw-r--r--libdvdcss/ioctl.c2123
-rw-r--r--libdvdcss/ioctl.h434
-rw-r--r--libdvdcss/libdvdcss.c814
-rw-r--r--libdvdcss/libdvdcss.h111
14 files changed, 0 insertions, 7437 deletions
diff --git a/Copyright b/Copyright
index ceca69b499..1da06aedf6 100644
--- a/Copyright
+++ b/Copyright
@@ -20,14 +20,6 @@ Copyright: Many, see individual files for copyright notices.
License: GNU Lesser General Public License
-Name: libdvdcss
-Version: Subversion r237 + local changes
-URL: http://developers.videolan.org/libdvdcss/
-Directory: libdvdcss
-Copyright: 1998-2008 VideoLAN
-License: GNU General Public License
-
-
Name: mpg123
Version: 0.59s + significant changes
URL: http://www.mpg123.de/
diff --git a/libdvdcss/bsdi_dvd.h b/libdvdcss/bsdi_dvd.h
deleted file mode 100644
index 2c50c898b1..0000000000
--- a/libdvdcss/bsdi_dvd.h
+++ /dev/null
@@ -1,344 +0,0 @@
-/*
- * $Id$
-*/
-
-#ifndef DVDCSS_BSDI_DVD_H
-#define DVDCSS_BSDI_DVD_H
-
-#include <sys/cdefs.h>
-#include <machine/endian.h>
-#include <sys/ioctl.h>
-
-__BEGIN_DECLS
-int dvd_cdrom_ioctl(int, unsigned long, void *);
-int cdrom_blocksize(int, int);
-void dvd_cdrom_debug(int);
-__END_DECLS
-
-#define ioctl(a,b,c) dvd_cdrom_ioctl((a),(b),(c))
-
-typedef unsigned char __u8;
-typedef unsigned short __u16;
-typedef unsigned int __u32;
-
-#define DVD_READ_STRUCT 0x5390 /* Read structure */
-#define DVD_WRITE_STRUCT 0x5391 /* Write structure */
-#define DVD_AUTH 0x5392 /* Authentication */
-
-#define DVD_STRUCT_PHYSICAL 0x00
-#define DVD_STRUCT_COPYRIGHT 0x01
-#define DVD_STRUCT_DISCKEY 0x02
-#define DVD_STRUCT_BCA 0x03
-#define DVD_STRUCT_MANUFACT 0x04
-
-struct dvd_layer {
- __u8 book_version : 4;
- __u8 book_type : 4;
- __u8 min_rate : 4;
- __u8 disc_size : 4;
- __u8 layer_type : 4;
- __u8 track_path : 1;
- __u8 nlayers : 2;
- __u8 track_density : 4;
- __u8 linear_density : 4;
- __u8 bca : 1;
- __u32 start_sector;
- __u32 end_sector;
- __u32 end_sector_l0;
-};
-
-struct dvd_physical {
- __u8 type;
- __u8 layer_num;
- struct dvd_layer layer[4];
-};
-
-struct dvd_copyright {
- __u8 type;
-
- __u8 layer_num;
- __u8 cpst;
- __u8 rmi;
-};
-
-struct dvd_disckey {
- __u8 type;
-
- unsigned agid : 2;
- __u8 value[2048];
-};
-
-struct dvd_bca {
- __u8 type;
-
- int len;
- __u8 value[188];
-};
-
-struct dvd_manufact {
- __u8 type;
-
- __u8 layer_num;
- int len;
- __u8 value[2048];
-};
-
-typedef union {
- __u8 type;
-
- struct dvd_physical physical;
- struct dvd_copyright copyright;
- struct dvd_disckey disckey;
- struct dvd_bca bca;
- struct dvd_manufact manufact;
-} dvd_struct;
-
-/*
- * DVD authentication ioctl
- */
-
-/* Authentication states */
-#define DVD_LU_SEND_AGID 0
-#define DVD_HOST_SEND_CHALLENGE 1
-#define DVD_LU_SEND_KEY1 2
-#define DVD_LU_SEND_CHALLENGE 3
-#define DVD_HOST_SEND_KEY2 4
-
-/* Termination states */
-#define DVD_AUTH_ESTABLISHED 5
-#define DVD_AUTH_FAILURE 6
-
-/* Other functions */
-#define DVD_LU_SEND_TITLE_KEY 7
-#define DVD_LU_SEND_ASF 8
-#define DVD_INVALIDATE_AGID 9
-#define DVD_LU_SEND_RPC_STATE 10
-#define DVD_HOST_SEND_RPC_STATE 11
-
-/* State data */
-typedef __u8 dvd_key[5]; /* 40-bit value, MSB is first elem. */
-typedef __u8 dvd_challenge[10]; /* 80-bit value, MSB is first elem. */
-
-struct dvd_lu_send_agid {
- __u8 type;
- unsigned agid : 2;
-};
-
-struct dvd_host_send_challenge {
- __u8 type;
- unsigned agid : 2;
-
- dvd_challenge chal;
-};
-
-struct dvd_send_key {
- __u8 type;
- unsigned agid : 2;
-
- dvd_key key;
-};
-
-struct dvd_lu_send_challenge {
- __u8 type;
- unsigned agid : 2;
-
- dvd_challenge chal;
-};
-
-#define DVD_CPM_NO_COPYRIGHT 0
-#define DVD_CPM_COPYRIGHTED 1
-
-#define DVD_CP_SEC_NONE 0
-#define DVD_CP_SEC_EXIST 1
-
-#define DVD_CGMS_UNRESTRICTED 0
-#define DVD_CGMS_SINGLE 2
-#define DVD_CGMS_RESTRICTED 3
-
-struct dvd_lu_send_title_key {
- __u8 type;
- unsigned agid : 2;
-
- dvd_key title_key;
- int lba;
- unsigned cpm : 1;
- unsigned cp_sec : 1;
- unsigned cgms : 2;
-};
-
-struct dvd_lu_send_asf {
- __u8 type;
- unsigned agid : 2;
-
- unsigned asf : 1;
-};
-
-struct dvd_host_send_rpcstate {
- __u8 type;
- __u8 pdrc;
-};
-
-struct dvd_lu_send_rpcstate {
- __u8 type : 2;
- __u8 vra : 3;
- __u8 ucca : 3;
- __u8 region_mask;
- __u8 rpc_scheme;
-};
-
-typedef union {
- __u8 type;
-
- struct dvd_lu_send_agid lsa;
- struct dvd_host_send_challenge hsc;
- struct dvd_send_key lsk;
- struct dvd_lu_send_challenge lsc;
- struct dvd_send_key hsk;
- struct dvd_lu_send_title_key lstk;
- struct dvd_lu_send_asf lsasf;
- struct dvd_host_send_rpcstate hrpcs;
- struct dvd_lu_send_rpcstate lrpcs;
-} dvd_authinfo;
-
-
-typedef struct {
- __u16 report_key_length;
- __u8 reserved1;
- __u8 reserved2;
-#if BYTE_ORDER == BIG_ENDIAN
- __u8 type_code : 2;
- __u8 vra : 3;
- __u8 ucca : 3;
-#elif BYTE_ORDER == LITTLE_ENDIAN
- __u8 ucca : 3;
- __u8 vra : 3;
- __u8 type_code : 2;
-#endif
- __u8 region_mask;
- __u8 rpc_scheme;
- __u8 reserved3;
-} rpc_state_t;
-
-/*
- * Stuff for the CDROM ioctls
-*/
-
-#define CDROMREADTOCHDR 0x5305 /* Read TOC header (cdrom_tochdr) */
-#define CDROMREADTOCENTRY 0x5306 /* Read TOC entry (cdrom_tocentry) */
-#define CDROMEJECT 0x5309 /* Ejects the cdrom media */
-#define CDROMCLOSETRAY 0x5319 /* Reverse of CDROMEJECT */
-#define CDROM_DRIVE_STATUS 0x5326 /* Get tray position, etc. */
-#define CDROM_DISC_STATUS 0x5327 /* Get disc type, etc. */
-#define CDROMREADMODE2 0x530c /* Read CDROM mode 2 data (2336 Bytes) */
-#define CDROMREADMODE1 0x530d /* Read CDROM mode 1 data (2048 Bytes) */
-#define CDROMREADRAW 0x5314 /* read data in raw mode (2352 bytes) */
-
-#define CD_MINS 74 /* max. minutes per CD, not really a limit */
-#define CD_SECS 60 /* seconds per minute */
-#define CD_FRAMES 75 /* frames per second */
-#define CD_MSF_OFFSET 150 /* MSF numbering offset of first frame */
-
-#define CD_HEAD_SIZE 4 /* header (address) bytes per raw data frame */
-#define CD_SYNC_SIZE 12 /* 12 sync bytes per raw data frame */
-#define CD_FRAMESIZE 2048 /* bytes per frame, "cooked" mode */
-#define CD_FRAMESIZE_RAW 2352 /* bytes per frame, "raw" mode */
-#define CD_FRAMESIZE_RAW0 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE-CD_HEAD_SIZE) /*2336*/
-#define CD_FRAMESIZE_RAW1 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE) /*2340*/
-
-/* CD-ROM address types (cdrom_tocentry.cdte_format) */
-#define CDROM_LBA 0x01 /* logical block: first frame is #0 */
-#define CDROM_MSF 0x02 /* minute-second-frame: binary. not bcd here!*/
-
-/* bit to tell whether track is data or audio (cdrom_tocentry.cdte_ctrl) */
-#define CDROM_DATA_TRACK 0x04
-
-/* The leadout track is always 0xAA, regardless of # of tracks on disc */
-#define CDROM_LEADOUT 0xAA
-
-/* drive status returned by CDROM_DRIVE_STATUS ioctl */
-#define CDS_NO_INFO 0 /* if not implemented */
-#define CDS_NO_DISC 1
-#define CDS_TRAY_OPEN 2
-#define CDS_DRIVE_NOT_READY 3
-#define CDS_DISC_OK 4
-
-/*
- * Return values for CDROM_DISC_STATUS ioctl.
- * Can also return CDS_NO_INFO and CDS_NO_DISC from above
-*/
-#define CDS_AUDIO 100
-#define CDS_DATA_1 101
-#define CDS_DATA_2 102
-#define CDS_XA_2_1 103
-#define CDS_XA_2_2 104
-#define CDS_MIXED 105
-
-/* For compile compatibility only - we don't support changers */
-#define CDSL_NONE ((int) (~0U>>1)-1)
-#define CDSL_CURRENT ((int) (~0U>>1))
-
-struct cdrom_msf
-{
- __u8 cdmsf_min0; /* start minute */
- __u8 cdmsf_sec0; /* start second */
- __u8 cdmsf_frame0; /* start frame */
- __u8 cdmsf_min1; /* end minute */
- __u8 cdmsf_sec1; /* end second */
- __u8 cdmsf_frame1; /* end frame */
-};
-
-struct cdrom_tochdr
- {
- __u8 cdth_trk0; /* start track */
- __u8 cdth_trk1; /* end track */
- };
-
-struct cdrom_msf0
-{
- __u8 minute;
- __u8 second;
- __u8 frame;
-};
-
-union cdrom_addr
-{
- struct cdrom_msf0 msf;
- int lba;
-};
-
-struct cdrom_tocentry
-{
- __u8 cdte_track;
- __u8 cdte_adr :4;
- __u8 cdte_ctrl :4;
- __u8 cdte_format;
- union cdrom_addr cdte_addr;
- __u8 cdte_datamode;
-};
-
-struct modesel_head
-{
- __u8 reserved1;
- __u8 medium;
- __u8 reserved2;
- __u8 block_desc_length;
- __u8 density;
- __u8 number_of_blocks_hi;
- __u8 number_of_blocks_med;
- __u8 number_of_blocks_lo;
- __u8 reserved3;
- __u8 block_length_hi;
- __u8 block_length_med;
- __u8 block_length_lo;
-};
-
-typedef struct
-{
- int data;
- int audio;
- int cdi;
- int xa;
- int error;
-} tracktype;
-
-#endif /* DVDCSS_BSDI_DVD_H */
diff --git a/libdvdcss/common.h b/libdvdcss/common.h
deleted file mode 100644
index bee5aadd50..0000000000
--- a/libdvdcss/common.h
+++ /dev/null
@@ -1,85 +0,0 @@
-/*****************************************************************************
- * common.h: common definitions
- * Collection of useful common types and macros definitions
- *****************************************************************************
- * Copyright (C) 1998, 1999, 2000 VideoLAN
- * $Id$
- *
- * Authors: Sam Hocevar <sam@via.ecp.fr>
- * Vincent Seguin <seguin@via.ecp.fr>
- * Gildas Bazin <gbazin@netcourrier.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 libdvdcss; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *****************************************************************************/
-
-#ifndef DVDCSS_COMMON_H
-#define DVDCSS_COMMON_H
-
-/*****************************************************************************
- * Basic types definitions
- *****************************************************************************/
-#if defined( HAVE_STDINT_H )
-# include <stdint.h>
-#elif defined( HAVE_INTTYPES_H )
-# include <inttypes.h>
-#elif defined( SYS_CYGWIN )
-# include <sys/types.h>
- /* Cygwin only defines half of these... */
- typedef u_int8_t uint8_t;
- typedef u_int32_t uint32_t;
-#else
- /* Fallback types (very x86-centric, sorry) */
- typedef unsigned char uint8_t;
- typedef signed char int8_t;
- typedef unsigned int uint32_t;
- typedef signed int int32_t;
-#endif
-
-#if defined( WIN32 )
-
-# ifndef PATH_MAX
-# define PATH_MAX MAX_PATH
-# endif
-
-/* several type definitions */
-# if defined( __MINGW32__ )
-# define lseek _lseeki64
-# if !defined( _OFF_T_ )
-typedef long long _off_t;
-typedef _off_t off_t;
-# define _OFF_T_
-# else
-# define off_t long long
-# endif
-# endif
-
-# if defined( _MSC_VER )
-# define lseek _lseeki64
-# if !defined( _OFF_T_DEFINED )
-typedef __int64 off_t;
-# define _OFF_T_DEFINED
-# else
-# define off_t __int64
-# endif
-# define stat _stati64
-# endif
-
-# ifndef snprintf
-# define snprintf _snprintf /* snprintf not defined in mingw32 (bug?) */
-# endif
-
-#endif
-
-#endif /* DVDCSS_COMMON_H */
diff --git a/libdvdcss/css.c b/libdvdcss/css.c
deleted file mode 100644
index 886a803efd..0000000000
--- a/libdvdcss/css.c
+++ /dev/null
@@ -1,1731 +0,0 @@
-/*****************************************************************************
- * css.c: Functions for DVD authentication and descrambling
- *****************************************************************************
- * Copyright (C) 1999-2008 VideoLAN
- * $Id$
- *
- * Authors: Stéphane Borel <stef@via.ecp.fr>
- * Håkan Hjort <d95hjort@dtek.chalmers.se>
- *
- * based on:
- * - css-auth by Derek Fawcus <derek@spider.com>
- * - DVD CSS ioctls example program by Andrew T. Veliath <andrewtv@usa.net>
- * - The Divide and conquer attack by Frank A. Stevenson <frank@funcom.com>
- * (see http://www-2.cs.cmu.edu/~dst/DeCSS/FrankStevenson/index.html)
- * - DeCSSPlus by Ethan Hawke
- * - DecVOB
- * see http://www.lemuria.org/DeCSS/ by Tom Vogt for more information.
- *
- * This library 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 library 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 library; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *****************************************************************************/
-
-/*****************************************************************************
- * Preamble
- *****************************************************************************/
-#include "config.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#ifdef HAVE_SYS_PARAM_H
-# include <sys/param.h>
-#endif
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-#include <fcntl.h>
-
-#ifdef HAVE_LIMITS_H
-# include <limits.h>
-#endif
-
-#include "dvdcss/dvdcss.h"
-
-#include "common.h"
-#include "css.h"
-#include "libdvdcss.h"
-#include "csstables.h"
-#include "ioctl.h"
-#include "device.h"
-
-/*****************************************************************************
- * Local prototypes
- *****************************************************************************/
-static void PrintKey ( dvdcss_t, char *, uint8_t const * );
-
-static int GetBusKey ( dvdcss_t );
-static int GetASF ( dvdcss_t );
-
-static void CryptKey ( int, int, uint8_t const *, uint8_t * );
-static void DecryptKey ( uint8_t,
- uint8_t const *, uint8_t const *, uint8_t * );
-
-static int DecryptDiscKey ( dvdcss_t, uint8_t const *, dvd_key_t );
-static int CrackDiscKey ( dvdcss_t, uint8_t * );
-
-static void DecryptTitleKey ( dvd_key_t, dvd_key_t );
-static int RecoverTitleKey ( int, uint8_t const *,
- uint8_t const *, uint8_t const *, uint8_t * );
-static int CrackTitleKey ( dvdcss_t, int, int, dvd_key_t );
-
-static int AttackPattern ( uint8_t const[], int, uint8_t * );
-#if 0
-static int AttackPadding ( uint8_t const[], int, uint8_t * );
-#endif
-
-/*****************************************************************************
- * _dvdcss_test: check if the disc is encrypted or not
- *****************************************************************************
- * Sets b_scrambled, b_ioctls
- *****************************************************************************/
-void _dvdcss_test( dvdcss_t dvdcss )
-{
- char const *psz_type, *psz_rpc;
- int i_ret, i_copyright, i_type, i_mask, i_rpc;
-
- i_ret = ioctl_ReadCopyright( dvdcss->i_fd, 0 /* i_layer */, &i_copyright );
-
- if( i_ret < 0 )
- {
- /* Maybe we didn't have enough privileges to read the copyright
- * (see ioctl_ReadCopyright comments).
- * Apparently, on unencrypted DVDs _dvdcss_disckey() always fails, so
- * we can check this as a workaround. */
-#ifdef WIN32
- i_ret = 0;
-#else
- /* Since it's the first ioctl we try to issue, we add a notice */
- print_error( dvdcss, "css error: could not get \"copyright\""
- " information, make sure there is a DVD in the drive,"
- " and that you have used the correct device node." );
- /* Try without ioctls */
- dvdcss->b_ioctls = 0;
-#endif
- i_copyright = 1;
- if( _dvdcss_disckey( dvdcss ) < 0 )
- {
- i_copyright = 0;
- }
- }
-
- print_debug( dvdcss, "disc reports copyright information 0x%x",
- i_copyright );
- dvdcss->b_scrambled = i_copyright;
-
- i_ret = ioctl_ReportRPC( dvdcss->i_fd, &i_type, &i_mask, &i_rpc);
-
- if( i_ret < 0 )
- {
- print_error( dvdcss, "css error: could not get RPC status, region-free drive?" );
- return;
- }
-
- switch( i_rpc )
- {
- case 0: psz_rpc = "RPC-I"; break;
- case 1: psz_rpc = "RPC-II"; break;
- default: psz_rpc = "unknown RPC scheme"; break;
- }
-
- switch( i_type )
- {
- case 0: psz_type = "no region code set"; break;
- case 1: psz_type = "region code set"; break;
- case 2: psz_type = "one region change remaining"; break;
- case 3: psz_type = "region code set permanently"; break;
- default: psz_type = "unknown status"; break;
- }
-
- print_debug( dvdcss, "drive region mask 0x%x, %s, %s",
- i_mask, psz_rpc, psz_type );
-
- if( i_copyright && i_rpc == 1 && i_type == 0 )
- {
- print_error( dvdcss, "css error: drive will prevent access to "
- "scrambled data" );
- }
-}
-
-/*****************************************************************************
- * _dvdcss_title: crack or decrypt the current title key if needed
- *****************************************************************************
- * This function should only be called by dvdcss->pf_seek and should eventually
- * not be external if possible.
- *****************************************************************************/
-int _dvdcss_title ( dvdcss_t dvdcss, int i_block )
-{
- dvd_title_t *p_title;
- dvd_title_t *p_newtitle;
- dvd_key_t p_title_key;
- int i_fd, i_ret = -1, b_cache = 0;
-
- if( ! dvdcss->b_scrambled )
- {
- return 0;
- }
-
- /* Check if we've already cracked this key */
- p_title = dvdcss->p_titles;
- while( p_title != NULL
- && p_title->p_next != NULL
- && p_title->p_next->i_startlb <= i_block )
- {
- p_title = p_title->p_next;
- }
-
- if( p_title != NULL
- && p_title->i_startlb == i_block )
- {
- /* We've already cracked this key, nothing to do */
- memcpy( dvdcss->css.p_title_key, p_title->p_key, sizeof(dvd_key_t) );
- return 0;
- }
-
- /* Check whether the key is in our disk cache */
- if( dvdcss->psz_cachefile[0] )
- {
- /* XXX: be careful, we use sprintf and not snprintf */
- sprintf( dvdcss->psz_block, "%.10x", i_block );
- i_fd = open( dvdcss->psz_cachefile, O_RDONLY );
- b_cache = 1;
-
- if( i_fd >= 0 )
- {
- char psz_key[KEY_SIZE * 3];
- unsigned int k0, k1, k2, k3, k4;
-
- psz_key[KEY_SIZE * 3 - 1] = '\0';
-
- if( read( i_fd, psz_key, KEY_SIZE * 3 - 1 ) == KEY_SIZE * 3 - 1
- && sscanf( psz_key, "%x:%x:%x:%x:%x",
- &k0, &k1, &k2, &k3, &k4 ) == 5 )
- {
- p_title_key[0] = k0;
- p_title_key[1] = k1;
- p_title_key[2] = k2;
- p_title_key[3] = k3;
- p_title_key[4] = k4;
- PrintKey( dvdcss, "title key found in cache ", p_title_key );
-
- /* Don't try to save it again */
- b_cache = 0;
- i_ret = 1;
- }
-
- close( i_fd );
- }
- }
-
- /* Crack or decrypt CSS title key for current VTS */
- if( i_ret < 0 )
- {
- i_ret = _dvdcss_titlekey( dvdcss, i_block, p_title_key );
-
- if( i_ret < 0 )
- {
- print_error( dvdcss, "fatal error in vts css key" );
- return i_ret;
- }
-
- if( i_ret == 0 )
- {
- print_debug( dvdcss, "unencrypted title" );
- /* We cache this anyway, so we don't need to check again. */
- }
- }
-
- /* Key is valid, we store it on disk. */
- if( dvdcss->psz_cachefile[0] && b_cache )
- {
- i_fd = open( dvdcss->psz_cachefile, O_RDWR|O_CREAT, 0644 );
- if( i_fd >= 0 )
- {
- char psz_key[KEY_SIZE * 3 + 2];
-
- sprintf( psz_key, "%02x:%02x:%02x:%02x:%02x\r\n",
- p_title_key[0], p_title_key[1], p_title_key[2],
- p_title_key[3], p_title_key[4] );
-
- write( i_fd, psz_key, KEY_SIZE * 3 + 1 );
- close( i_fd );
- }
- }
-
- /* Find our spot in the list */
- p_newtitle = NULL;
- p_title = dvdcss->p_titles;
- while( ( p_title != NULL ) && ( p_title->i_startlb < i_block ) )
- {
- p_newtitle = p_title;
- p_title = p_title->p_next;
- }
-
- /* Save the found title */
- p_title = p_newtitle;
-
- /* Write in the new title and its key */
- p_newtitle = malloc( sizeof( dvd_title_t ) );
- p_newtitle->i_startlb = i_block;
- memcpy( p_newtitle->p_key, p_title_key, KEY_SIZE );
-
- /* Link it at the head of the (possibly empty) list */
- if( p_title == NULL )
- {
- p_newtitle->p_next = dvdcss->p_titles;
- dvdcss->p_titles = p_newtitle;
- }
- /* Link the new title inside the list */
- else
- {
- p_newtitle->p_next = p_title->p_next;
- p_title->p_next = p_newtitle;
- }
-
- memcpy( dvdcss->css.p_title_key, p_title_key, KEY_SIZE );
- return 0;
-}
-
-/*****************************************************************************
- * _dvdcss_disckey: get disc key.
- *****************************************************************************
- * This function should only be called if DVD ioctls are present.
- * It will set dvdcss->i_method = DVDCSS_METHOD_TITLE if it fails to find
- * a valid disc key.
- * Two decryption methods are offered:
- * -disc key hash crack,
- * -decryption with player keys if they are available.
- *****************************************************************************/
-int _dvdcss_disckey( dvdcss_t dvdcss )
-{
- unsigned char p_buffer[ DVD_DISCKEY_SIZE ];
- dvd_key_t p_disc_key;
- int i;
-
- if( GetBusKey( dvdcss ) < 0 )
- {
- return -1;
- }
-
- /* Get encrypted disc key */
- if( ioctl_ReadDiscKey( dvdcss->i_fd, &dvdcss->css.i_agid, p_buffer ) < 0 )
- {
- print_error( dvdcss, "ioctl ReadDiscKey failed" );
- return -1;
- }
-
- /* This should have invaidated the AGID and got us ASF=1. */
- if( GetASF( dvdcss ) != 1 )
- {
- /* Region mismatch (or region not set) is the most likely source. */
- print_error( dvdcss,
- "ASF not 1 after reading disc key (region mismatch?)" );
- ioctl_InvalidateAgid( dvdcss->i_fd, &dvdcss->css.i_agid );
- return -1;
- }
-
- /* Shuffle disc key using bus key */
- for( i = 0 ; i < DVD_DISCKEY_SIZE ; i++ )
- {
- p_buffer[ i ] ^= dvdcss->css.p_bus_key[ 4 - (i % KEY_SIZE) ];
- }
-
- /* Decrypt disc key */
- switch( dvdcss->i_method )
- {
- case DVDCSS_METHOD_KEY:
-
- /* Decrypt disc key with player key. */
- PrintKey( dvdcss, "decrypting disc key ", p_buffer );
- if( ! DecryptDiscKey( dvdcss, p_buffer, p_disc_key ) )
- {
- PrintKey( dvdcss, "decrypted disc key is ", p_disc_key );
- break;
- }
- print_debug( dvdcss, "failed to decrypt the disc key, "
- "faulty drive/kernel? "
- "cracking title keys instead" );
-
- /* Fallback, but not to DISC as the disc key might be faulty */
- memset( p_disc_key, 0, KEY_SIZE );
- dvdcss->i_method = DVDCSS_METHOD_TITLE;
- break;
-
- case DVDCSS_METHOD_DISC:
-
- /* Crack Disc key to be able to use it */
- memcpy( p_disc_key, p_buffer, KEY_SIZE );
- PrintKey( dvdcss, "cracking disc key ", p_disc_key );
- if( ! CrackDiscKey( dvdcss, p_disc_key ) )
- {
- PrintKey( dvdcss, "cracked disc key is ", p_disc_key );
- break;
- }
- print_debug( dvdcss, "failed to crack the disc key" );
- memset( p_disc_key, 0, KEY_SIZE );
- dvdcss->i_method = DVDCSS_METHOD_TITLE;
- break;
-
- default:
-
- print_debug( dvdcss, "disc key needs not be decrypted" );
- memset( p_disc_key, 0, KEY_SIZE );
- break;
- }
-
- memcpy( dvdcss->css.p_disc_key, p_disc_key, KEY_SIZE );
-
- return 0;
-}
-
-
-/*****************************************************************************
- * _dvdcss_titlekey: get title key.
- *****************************************************************************/
-int _dvdcss_titlekey( dvdcss_t dvdcss, int i_pos, dvd_key_t p_title_key )
-{
- static uint8_t p_garbage[ DVDCSS_BLOCK_SIZE ]; /* we never read it back */
- uint8_t p_key[ KEY_SIZE ];
- int i, i_ret = 0;
-
- if( dvdcss->b_ioctls && ( dvdcss->i_method == DVDCSS_METHOD_KEY ||
- dvdcss->i_method == DVDCSS_METHOD_DISC ) )
- {
- /* We have a decrypted Disc key and the ioctls are available,
- * read the title key and decrypt it.
- */
-
- print_debug( dvdcss, "getting title key at block %i the classic way",
- i_pos );
-
- /* We need to authenticate again every time to get a new session key */
- if( GetBusKey( dvdcss ) < 0 )
- {
- i_ret = -1;
- }
-
- /* Get encrypted title key */
- if( ioctl_ReadTitleKey( dvdcss->i_fd, &dvdcss->css.i_agid,
- i_pos, p_key ) < 0 )
- {
- print_debug( dvdcss,
- "ioctl ReadTitleKey failed (region mismatch?)" );
- i_ret = -1;
- }
-
- /* Test ASF, it will be reset to 0 if we got a Region error */
- switch( GetASF( dvdcss ) )
- {
- case -1:
- /* An error getting the ASF status, something must be wrong. */
- print_debug( dvdcss, "lost ASF requesting title key" );
- ioctl_InvalidateAgid( dvdcss->i_fd, &dvdcss->css.i_agid );
- i_ret = -1;
- break;
-
- case 0:
- /* This might either be a title that has no key,
- * or we encountered a region error. */
- print_debug( dvdcss, "lost ASF requesting title key" );
- break;
-
- case 1:
- /* Drive status is ok. */
- /* If the title key request failed, but we did not loose ASF,
- * we might stil have the AGID. Other code assume that we
- * will not after this so invalidate it(?). */
- if( i_ret < 0 )
- {
- ioctl_InvalidateAgid( dvdcss->i_fd, &dvdcss->css.i_agid );
- }
- break;
- }
-
- if( !( i_ret < 0 ) )
- {
- /* Decrypt title key using the bus key */
- for( i = 0 ; i < KEY_SIZE ; i++ )
- {
- p_key[ i ] ^= dvdcss->css.p_bus_key[ 4 - (i % KEY_SIZE) ];
- }
-
- /* If p_key is all zero then there really wasn't any key present
- * even though we got to read it without an error. */
- if( !( p_key[0] | p_key[1] | p_key[2] | p_key[3] | p_key[4] ) )
- {
- i_ret = 0;
- }
- else
- {
- PrintKey( dvdcss, "initial disc key ", dvdcss->css.p_disc_key );
- DecryptTitleKey( dvdcss->css.p_disc_key, p_key );
- PrintKey( dvdcss, "decrypted title key ", p_key );
- i_ret = 1;
- }
-
- /* All went well either there wasn't a key or we have it now. */
- memcpy( p_title_key, p_key, KEY_SIZE );
- PrintKey( dvdcss, "title key is ", p_title_key );
-
- return i_ret;
- }
-
- /* The title key request failed */
- print_debug( dvdcss, "resetting drive and cracking title key" );
-
- /* Read an unscrambled sector and reset the drive */
- dvdcss->pf_seek( dvdcss, 0 );
- dvdcss->pf_read( dvdcss, p_garbage, 1 );
- dvdcss->pf_seek( dvdcss, 0 );
- _dvdcss_disckey( dvdcss );
-
- /* Fallback */
- }
-
- /* METHOD is TITLE, we can't use the ioctls or requesting the title key
- * failed above. For these cases we try to crack the key instead. */
-
- /* For now, the read limit is 9Gb / 2048 = 4718592 sectors. */
- i_ret = CrackTitleKey( dvdcss, i_pos, 4718592, p_key );
-
- memcpy( p_title_key, p_key, KEY_SIZE );
- PrintKey( dvdcss, "title key is ", p_title_key );
-
- return i_ret;
-}
-
-/*****************************************************************************
- * _dvdcss_unscramble: does the actual descrambling of data
- *****************************************************************************
- * sec : sector to unscramble
- * key : title key for this sector
- *****************************************************************************/
-int _dvdcss_unscramble( dvd_key_t p_key, uint8_t *p_sec )
-{
- unsigned int i_t1, i_t2, i_t3, i_t4, i_t5, i_t6;
- uint8_t *p_end = p_sec + DVDCSS_BLOCK_SIZE;
-
- /* PES_scrambling_control */
- if( !(p_sec[0x14] & 0x30) )
- {
- return 0;
- }
-
- i_t1 = (p_key[0] ^ p_sec[0x54]) | 0x100;
- i_t2 = p_key[1] ^ p_sec[0x55];
- i_t3 = (p_key[2] | (p_key[3] << 8) |
- (p_key[4] << 16)) ^ (p_sec[0x56] |
- (p_sec[0x57] << 8) | (p_sec[0x58] << 16));
- i_t4 = i_t3 & 7;
- i_t3 = i_t3 * 2 + 8 - i_t4;
- p_sec += 0x80;
- i_t5 = 0;
-
- while( p_sec != p