ioctl.c

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/*****************************************************************************
 * ioctl.c: DVD ioctl replacement function
 *****************************************************************************
 * Copyright (C) 1999-2001 VideoLAN
 * $Id: ioctl.c,v 1.2 2008/03/03 08:11:37 dsqiu Exp $
 *
 * Authors: Markus Kuespert <[e-mail]>
 *          Samuel Hocevar <[e-mail]>
 *          Jon Lech Johansen <[e-mail]>
 *          H錵an Hjort <[e-mail]>
 *          Eugenio Jarosiewicz <[e-mail]>
 *          David Sieb鰎ger <[e-mail]>
 *          Alex Strelnikov <[e-mail]>
 *          Gildas Bazin <[e-mail]>
 *
 * 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.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#include "config.h"

#include <mplaylib.h>

#include <mplaylib.h>                                    /* memcpy(), memset() */
#include <sys/types.h>

#if defined( WIN32 )
#   include <windows.h>
#   include <winioctl.h>
#elif defined ( SYS_OS2 )
#   define INCL_DOSFILEMGR
#   define INCL_DOSDEVICES
#   define INCL_DOSDEVIOCTL
#   define INCL_DOSERRORS
#   include <os2.h>
#   include <sys/ioctl.h>
#else
#   include <netinet/in.h>
#   include <sys/ioctl.h>
#endif

#ifdef DVD_STRUCT_IN_SYS_CDIO_H
#   include <sys/cdio.h>
#endif
#ifdef DVD_STRUCT_IN_SYS_DVDIO_H
#   include <sys/dvdio.h>
#endif
#ifdef DVD_STRUCT_IN_LINUX_CDROM_H
#   include <linux/cdrom.h>
#endif
#ifdef DVD_STRUCT_IN_DVD_H
#   include <dvd.h>
#endif
#ifdef DVD_STRUCT_IN_BSDI_DVDIOCTL_DVD_H
#   include "bsdi_dvd.h"
#endif
#ifdef SYS_BEOS
#   include <malloc.h>
#   include <scsi.h>
#endif
#ifdef HPUX_SCTL_IO
#   include <sys/scsi.h>
#endif
#ifdef SOLARIS_USCSI
#   include <dlfcn.h>
#   include <unistd.h>
#   include <stropts.h>
#   include <sys/scsi/scsi_types.h>
#   include <sys/scsi/impl/uscsi.h>
#endif
#ifdef DARWIN_DVD_IOCTL
#   include <IOKit/storage/IODVDMediaBSDClient.h>
#endif
#ifdef __QNXNTO__
#   include <sys/mman.h>
#   include <sys/dcmd_cam.h>
#endif

#include "common.h"

#include "ioctl.h"

/*****************************************************************************
 * Local prototypes, BeOS specific
 *****************************************************************************/
#if defined( SYS_BEOS )
static void BeInitRDC ( raw_device_command *, int );
#endif

/*****************************************************************************
 * Local prototypes, HP-UX specific
 *****************************************************************************/
#if defined( HPUX_SCTL_IO )
static void HPUXInitSCTL ( struct sctl_io *sctl_io, int i_type );
#endif

/*****************************************************************************
 * Local prototypes, Solaris specific
 *****************************************************************************/
#if defined( SOLARIS_USCSI )
static void SolarisInitUSCSI( struct uscsi_cmd *p_sc, int i_type );
static int SolarisSendUSCSI( int fd, struct uscsi_cmd *p_sc );
#endif

/*****************************************************************************
 * Local prototypes, win32 (aspi) specific
 *****************************************************************************/
#if defined( WIN32 )
static void WinInitSPTD ( SCSI_PASS_THROUGH_DIRECT *, int );
static void WinInitSSC  ( struct SRB_ExecSCSICmd *, int );
static int  WinSendSSC  ( int, struct SRB_ExecSCSICmd * );
#endif

/*****************************************************************************
 * Local prototypes, QNX specific
 *****************************************************************************/
#if defined( __QNXNTO__ )
static void QNXInitCPT ( CAM_PASS_THRU *, int );
#endif

/*****************************************************************************
 * Local prototypes, OS2 specific
 *****************************************************************************/
#if defined( SYS_OS2 )
static void OS2InitSDC( struct OS2_ExecSCSICmd *, int );
#endif

/*****************************************************************************
 * ioctl_ReadCopyright: check whether the disc is encrypted or not
 *****************************************************************************/
int ioctl_ReadCopyright( int i_fd, int i_layer, int *pi_copyright )
{
    int i_ret;

#if defined( HAVE_LINUX_DVD_STRUCT )
    dvd_struct dvd;

    memset( &dvd, 0, sizeof( dvd ) );
    dvd.type = DVD_STRUCT_COPYRIGHT;
    dvd.copyright.layer_num = i_layer;

    i_ret = ioctl( i_fd, DVD_READ_STRUCT, &dvd );

    *pi_copyright = dvd.copyright.cpst;

#elif defined( HAVE_BSD_DVD_STRUCT )
    struct dvd_struct dvd;

    memset( &dvd, 0, sizeof( dvd ) );
    dvd.format = DVD_STRUCT_COPYRIGHT;
    dvd.layer_num = i_layer;

    i_ret = ioctl( i_fd, DVDIOCREADSTRUCTURE, &dvd );

    *pi_copyright = dvd.cpst;

#elif defined( SYS_BEOS )
    INIT_RDC( GPCMD_READ_DVD_STRUCTURE, 8 );

    rdc.command[ 6 ] = i_layer;
    rdc.command[ 7 ] = DVD_STRUCT_COPYRIGHT;

    i_ret = ioctl( i_fd, B_RAW_DEVICE_COMMAND, &rdc, sizeof(rdc) );

    *pi_copyright = p_buffer[ 4 ];

#elif defined( HPUX_SCTL_IO )
    INIT_SCTL_IO( GPCMD_READ_DVD_STRUCTURE, 8 );

    sctl_io.cdb[ 6 ] = i_layer;
    sctl_io.cdb[ 7 ] = DVD_STRUCT_COPYRIGHT;

    i_ret = ioctl( i_fd, SIOC_IO, &sctl_io );

    *pi_copyright = p_buffer[ 4 ];

#elif defined( SOLARIS_USCSI )
    INIT_USCSI( GPCMD_READ_DVD_STRUCTURE, 8 );

    rs_cdb.cdb_opaque[ 6 ] = i_layer;
    rs_cdb.cdb_opaque[ 7 ] = DVD_STRUCT_COPYRIGHT;

    i_ret = SolarisSendUSCSI(i_fd, &sc);

    if( i_ret < 0 || sc.uscsi_status ) {
        i_ret = -1;
    }

    *pi_copyright = p_buffer[ 4 ];
    /* s->copyright.rmi = p_buffer[ 5 ]; */

#elif defined( DARWIN_DVD_IOCTL )
    INIT_DVDIOCTL( dk_dvd_read_structure_t, DVDCopyrightInfo,
                   kDVDStructureFormatCopyrightInfo );

    dvd.layer = i_layer;

    i_ret = ioctl( i_fd, DKIOCDVDREADSTRUCTURE, &dvd );

    *pi_copyright = dvdbs.copyrightProtectionSystemType;

#elif defined( WIN32 )
    if( WIN2K ) /* NT/2k/XP */
    {
        INIT_SPTD( GPCMD_READ_DVD_STRUCTURE, 8 );

        /*  When using IOCTL_DVD_READ_STRUCTURE and
            DVD_COPYRIGHT_DESCRIPTOR, CopyrightProtectionType
            seems to be always 6 ???
            To work around this MS bug we try to send a raw scsi command
            instead (if we've got enough privileges to do so). */

        sptd.Cdb[ 6 ] = i_layer;
        sptd.Cdb[ 7 ] = DVD_STRUCT_COPYRIGHT;

        i_ret = SEND_SPTD( i_fd, &sptd, &tmp );

        if( i_ret == 0 )
        {
            *pi_copyright = p_buffer[ 4 ];
        }
    }
    else
    {
        INIT_SSC( GPCMD_READ_DVD_STRUCTURE, 8 );

        ssc.CDBByte[ 6 ] = i_layer;
        ssc.CDBByte[ 7 ] = DVD_STRUCT_COPYRIGHT;

        i_ret = WinSendSSC( i_fd, &ssc );

        *pi_copyright = p_buffer[ 4 ];
    }

#elif defined( __QNXNTO__ )

    INIT_CPT( GPCMD_READ_DVD_STRUCTURE, 8 );

    p_cpt->cam_cdb[ 6 ] = i_layer;
    p_cpt->cam_cdb[ 7 ] = DVD_STRUCT_COPYRIGHT;

    i_ret = devctl(i_fd, DCMD_CAM_PASS_THRU, p_cpt, structSize, NULL);

    *pi_copyright = p_buffer[4];

#elif defined( SYS_OS2 )
    INIT_SSC( GPCMD_READ_DVD_STRUCTURE, 8 );

    sdc.command[ 6 ] = i_layer;
    sdc.command[ 7 ] = DVD_STRUCT_COPYRIGHT;

    i_ret = DosDevIOCtl(i_fd, IOCTL_CDROMDISK, CDROMDISK_EXECMD,
                        &sdc, sizeof(sdc), &ulParamLen,
                        p_buffer, sizeof(p_buffer), &ulDataLen);

    *pi_copyright = p_buffer[ 4 ];

#else
#   error "DVD ioctls are unavailable on this system"

#endif
    return i_ret;
}

/*****************************************************************************
 * ioctl_ReadDiscKey: get the disc key
 *****************************************************************************/
int ioctl_ReadDiscKey( int i_fd, int *pi_agid, uint8_t *p_key )
{
    int i_ret;

#if defined( HAVE_LINUX_DVD_STRUCT )
    dvd_struct dvd;

    memset( &dvd, 0, sizeof( dvd ) );
    dvd.type = DVD_STRUCT_DISCKEY;
    dvd.disckey.agid = *pi_agid;
    memset( dvd.disckey.value, 0, DVD_DISCKEY_SIZE );

    i_ret = ioctl( i_fd, DVD_READ_STRUCT, &dvd );

    if( i_ret < 0 )
    {
        return i_ret;
    }

    memcpy( p_key, dvd.disckey.value, DVD_DISCKEY_SIZE );

#elif defined( HAVE_BSD_DVD_STRUCT )
    struct dvd_struct dvd;

    memset( &dvd, 0, sizeof( dvd ) );
    dvd.format = DVD_STRUCT_DISCKEY;
    dvd.agid = *pi_agid;
    memset( dvd.data, 0, DVD_DISCKEY_SIZE );

    i_ret = ioctl( i_fd, DVDIOCREADSTRUCTURE, &dvd );

    if( i_ret < 0 )
    {
        return i_ret;
    }

    memcpy( p_key, dvd.data, DVD_DISCKEY_SIZE );

#elif defined( SYS_BEOS )
    INIT_RDC( GPCMD_READ_DVD_STRUCTURE, DVD_DISCKEY_SIZE + 4 );

    rdc.command[ 7 ]  = DVD_STRUCT_DISCKEY;
    rdc.command[ 10 ] = *pi_agid << 6;

    i_ret = ioctl( i_fd, B_RAW_DEVICE_COMMAND, &rdc, sizeof(rdc) );

    if( i_ret < 0 )
    {
        return i_ret;
    }

    memcpy( p_key, p_buffer + 4, DVD_DISCKEY_SIZE );

#elif defined( HPUX_SCTL_IO )
    INIT_SCTL_IO( GPCMD_READ_DVD_STRUCTURE, DVD_DISCKEY_SIZE + 4 );

    sctl_io.cdb[ 7 ]  = DVD_STRUCT_DISCKEY;
    sctl_io.cdb[ 10 ] = *pi_agid << 6;

    i_ret = ioctl( i_fd, SIOC_IO, &sctl_io );

    if( i_ret < 0 )
    {
        return i_ret;
    }

    memcpy( p_key, p_buffer + 4, DVD_DISCKEY_SIZE );

#elif defined( SOLARIS_USCSI )
    INIT_USCSI( GPCMD_READ_DVD_STRUCTURE, DVD_DISCKEY_SIZE + 4 );

    rs_cdb.cdb_opaque[ 7 ] = DVD_STRUCT_DISCKEY;
    rs_cdb.cdb_opaque[ 10 ] = *pi_agid << 6;

    i_ret = SolarisSendUSCSI( i_fd, &sc );

    if( i_ret < 0 || sc.uscsi_status )
    {
        i_ret = -1;
        return i_ret;
    }

    memcpy( p_key, p_buffer + 4, DVD_DISCKEY_SIZE );

#elif defined( DARWIN_DVD_IOCTL )
    INIT_DVDIOCTL( dk_dvd_read_structure_t, DVDDiscKeyInfo,
                   kDVDStructureFormatDiscKeyInfo );

    dvd.grantID = *pi_agid;

    i_ret = ioctl( i_fd, DKIOCDVDREADSTRUCTURE, &dvd );

    memcpy( p_key, dvdbs.discKeyStructures, DVD_DISCKEY_SIZE );

#elif defined( WIN32 )
    if( WIN2K ) /* NT/2k/XP */
    {
        DWORD tmp;
        uint8_t buffer[DVD_DISK_KEY_LENGTH];
        PDVD_COPY_PROTECT_KEY key = (PDVD_COPY_PROTECT_KEY) &buffer;

        memset( &buffer, 0, sizeof( buffer ) );

        key->KeyLength  = DVD_DISK_KEY_LENGTH;
        key->SessionId  = *pi_agid;
        key->KeyType    = DvdDiskKey;
        key->KeyFlags   = 0;

        i_ret = DeviceIoControl( (HANDLE) i_fd, IOCTL_DVD_READ_KEY, key,
                key->KeyLength, key, key->KeyLength, &tmp, NULL ) ? 0 : -1;

        if( i_ret < 0 )
        {
            return i_ret;
        }

        memcpy( p_key, key->KeyData, DVD_DISCKEY_SIZE );
    }
    else
    {
        INIT_SSC( GPCMD_READ_DVD_STRUCTURE, DVD_DISCKEY_SIZE + 4 );

        ssc.CDBByte[ 7 ]  = DVD_STRUCT_DISCKEY;
        ssc.CDBByte[ 10 ] = *pi_agid << 6;

        i_ret = WinSendSSC( i_fd, &ssc );

        if( i_ret < 0 )
        {
            return i_ret;
        }

        memcpy( p_key, p_buffer + 4, DVD_DISCKEY_SIZE );
    }

#elif defined( __QNXNTO__ )

    INIT_CPT( GPCMD_READ_DVD_STRUCTURE, DVD_DISCKEY_SIZE + 4 );

    p_cpt->cam_cdb[ 7 ] = DVD_STRUCT_DISCKEY;
    p_cpt->cam_cdb[ 10 ] = *pi_agid << 6;

    i_ret = devctl(i_fd, DCMD_CAM_PASS_THRU, p_cpt, structSize, NULL);

    memcpy( p_key, p_buffer + 4, DVD_DISCKEY_SIZE );

#elif defined ( SYS_OS2 )
    INIT_SSC( GPCMD_READ_DVD_STRUCTURE, DVD_DISCKEY_SIZE + 4 );

    sdc.command[ 7 ]  = DVD_STRUCT_DISCKEY;
    sdc.command[ 10 ] = *pi_agid << 6;

    i_ret = DosDevIOCtl(i_fd, IOCTL_CDROMDISK, CDROMDISK_EXECMD,
                        &sdc, sizeof(sdc), &ulParamLen,
                        p_buffer, sizeof(p_buffer), &ulDataLen);

    if( i_ret < 0 )
    {
        return i_ret;
    }

    memcpy( p_key, p_buffer + 4, DVD_DISCKEY_SIZE );

#else
#   error "DVD ioctls are unavailable on this system"

#endif
    return i_ret;
}

/*****************************************************************************
 * ioctl_ReadTitleKey: get the title key
 *****************************************************************************/
int ioctl_ReadTitleKey( int i_fd, int *pi_agid, int i_pos, uint8_t *p_key )
{
    int i_ret;

#if defined( HAVE_LINUX_DVD_STRUCT )
    dvd_authinfo auth_info;

    memset( &auth_info, 0, sizeof( auth_info ) );
    auth_info.type = DVD_LU_SEND_TITLE_KEY;
    auth_info.lstk.agid = *pi_agid;
    auth_info.lstk.lba = i_pos;

    i_ret = ioctl( i_fd, DVD_AUTH, &auth_info );

    memcpy( p_key, auth_info.lstk.title_key, DVD_KEY_SIZE );

#elif defined( HAVE_BSD_DVD_STRUCT )
    struct dvd_authinfo auth_info;

    memset( &auth_info, 0, sizeof( auth_info ) );
    auth_info.format = DVD_REPORT_TITLE_KEY;
    auth_info.agid = *pi_agid;
    auth_info.lba = i_pos;

    i_ret = ioctl( i_fd, DVDIOCREPORTKEY, &auth_info );

    memcpy( p_key, auth_info.keychal, DVD_KEY_SIZE );

#elif defined( SYS_BEOS )
    INIT_RDC( GPCMD_REPORT_KEY, 12 );

    rdc.command[ 2 ] = ( i_pos >> 24 ) & 0xff;
    rdc.command[ 3 ] = ( i_pos >> 16 ) & 0xff;
    rdc.command[ 4 ] = ( i_pos >>  8 ) & 0xff;
    rdc.command[ 5 ] = ( i_pos       ) & 0xff;
    rdc.command[ 10 ] = DVD_REPORT_TITLE_KEY | (*pi_agid << 6);

    i_ret = ioctl( i_fd, B_RAW_DEVICE_COMMAND, &rdc, sizeof(rdc) );

    memcpy( p_key, p_buffer + 5, DVD_KEY_SIZE );

#elif defined( HPUX_SCTL_IO )
    INIT_SCTL_IO( GPCMD_REPORT_KEY, 12 );

    sctl_io.cdb[ 2 ] = ( i_pos >> 24 ) & 0xff;
    sctl_io.cdb[ 3 ] = ( i_pos >> 16 ) & 0xff;
    sctl_io.cdb[ 4 ] = ( i_pos >>  8 ) & 0xff;
    sctl_io.cdb[ 5 ] = ( i_pos       ) & 0xff;
    sctl_io.cdb[ 10 ] = DVD_REPORT_TITLE_KEY | (*pi_agid << 6);

    i_ret = ioctl( i_fd, SIOC_IO, &sctl_io );

    memcpy( p_key, p_buffer + 5, DVD_KEY_SIZE );

#elif defined( SOLARIS_USCSI )
    INIT_USCSI( GPCMD_REPORT_KEY, 12 );

    rs_cdb.cdb_opaque[ 2 ] = ( i_pos >> 24 ) & 0xff;
    rs_cdb.cdb_opaque[ 3 ] = ( i_pos >> 16 ) & 0xff;
    rs_cdb.cdb_opaque[ 4 ] = ( i_pos >>  8 ) & 0xff;
    rs_cdb.cdb_opaque[ 5 ] = ( i_pos       ) & 0xff;
    rs_cdb.cdb_opaque[ 10 ] = DVD_REPORT_TITLE_KEY | (*pi_agid << 6);

    i_ret = SolarisSendUSCSI( i_fd, &sc );

    if( i_ret < 0 || sc.uscsi_status )
    {
        i_ret = -1;
    }

    /* Do we want to return the cp_sec flag perhaps? */
    /* a->lstk.cpm    = (buf[ 4 ] >> 7) & 1; */
    /* a->lstk.cp_sec = (buf[ 4 ] >> 6) & 1; */
    /* a->lstk.cgms   = (buf[ 4 ] >> 4) & 3; */

    memcpy( p_key, p_buffer + 5, DVD_KEY_SIZE );