[MPlayer-dev-eng] [PATCH] update libdvdcss in libmpdvdkit to latest version (1.2.4)
Andreas Hess
jaska at gmx.net
Thu Dec 26 14:46:20 CET 2002
Hi!
[see above]
Andreas
-------------- next part --------------
Index: libmpdvdkit2/css.c
===================================================================
RCS file: /cvsroot/mplayer/main/libmpdvdkit2/css.c,v
retrieving revision 1.4
diff -u -r1.4 css.c
--- libmpdvdkit2/css.c 6 Nov 2002 23:54:26 -0000 1.4
+++ libmpdvdkit2/css.c 26 Dec 2002 13:32:14 -0000
@@ -41,6 +41,7 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
+#include <unistd.h>
#include "dvdcss.h"
@@ -81,18 +82,27 @@
i_ret = ioctl_ReadCopyright( dvdcss->i_fd, 0 /* i_layer */, &i_copyright );
+#ifdef WIN32
+ if( i_ret < 0 )
+ {
+ /* Maybe we didn't have enough priviledges to read the copyright
+ * (see ioctl_ReadCopyright comments).
+ * Apparently, on unencrypted DVDs _dvdcss_disckey() always fails, so
+ * we can check this as a work-around. */
+ i_ret = 0;
+ if( _dvdcss_disckey( dvdcss ) < 0 )
+ i_copyright = 0;
+ else
+ i_copyright = 1;
+ }
+#endif
+
if( i_ret < 0 )
{
/* Since it's the first ioctl we try to issue, we add a notice */
_dvdcss_error( dvdcss, "css error: ioctl_ReadCopyright failed, "
"make sure there is a DVD in the drive, and that "
- "you have used the correct device node."
-#if defined( WIN32 )
- "\nAlso note that if you are using Windows NT/2000/XP "
- "you need to have administrator priviledges to be able "
- "to use ioctls."
-#endif
- );
+ "you have used the correct device node." );
return i_ret;
}
@@ -264,7 +274,7 @@
/*****************************************************************************
* _dvdcss_title: crack or decrypt the current title key if needed
*****************************************************************************
- * This function should only be called by dvdcss_seek and should eventually
+ * 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 )
@@ -427,9 +437,12 @@
break;
}
_dvdcss_debug( dvdcss, "failed to decrypt the disc key, "
- "trying to crack it instead" );
+ "faulty drive/kernel? "
+ "cracking title keys instead" );
- /* Fallback */
+ /* Fallback, but not to DISC as the disc key might be faulty */
+ dvdcss->i_method = DVDCSS_METHOD_TITLE;
+ break;
case DVDCSS_METHOD_DISC:
@@ -443,6 +456,7 @@
break;
}
_dvdcss_debug( dvdcss, "failed to crack the disc key" );
+ memset( p_disc_key, 0, KEY_SIZE );
dvdcss->i_method = DVDCSS_METHOD_TITLE;
break;
@@ -551,9 +565,9 @@
_dvdcss_debug( dvdcss, "resetting drive and cracking title key" );
/* Read an unscrambled sector and reset the drive */
- _dvdcss_seek( dvdcss, 0 );
- _dvdcss_read( dvdcss, p_garbage, 1 );
- _dvdcss_seek( dvdcss, 0 );
+ dvdcss->pf_seek( dvdcss, 0 );
+ dvdcss->pf_read( dvdcss, p_garbage, 1 );
+ dvdcss->pf_seek( dvdcss, 0 );
_dvdcss_disckey( dvdcss );
/* Fallback */
@@ -978,7 +992,7 @@
DecryptKey( 0, p_disc_key, p_struct_disckey, p_verify );
/* If the position / player key pair worked then return. */
- if( memcmp( p_disc_key, p_verify, 5 ) == 0 )
+ if( memcmp( p_disc_key, p_verify, KEY_SIZE ) == 0 )
{
return 0;
}
@@ -988,6 +1002,7 @@
/* Have tried all combinations of positions and keys,
* and we still didn't succeed. */
+ memset( p_disc_key, 0, KEY_SIZE );
return -1;
}
@@ -1383,7 +1398,7 @@
do
{
- i_ret = _dvdcss_seek( dvdcss, i_pos );
+ i_ret = dvdcss->pf_seek( dvdcss, i_pos );
if( i_ret != i_pos )
{
Index: libmpdvdkit2/device.c
===================================================================
RCS file: /cvsroot/mplayer/main/libmpdvdkit2/device.c,v
retrieving revision 1.2
diff -u -r1.2 device.c
--- libmpdvdkit2/device.c 16 Aug 2002 22:50:21 -0000 1.2
+++ libmpdvdkit2/device.c 26 Dec 2002 13:32:14 -0000
@@ -54,67 +54,34 @@
#include "device.h"
/*****************************************************************************
- * Device reading prototypes, win32 specific
+ * Device reading prototypes
*****************************************************************************/
+static int libc_open ( dvdcss_t, char const * );
+static int libc_seek ( dvdcss_t, int );
+static int libc_read ( dvdcss_t, void *, int );
+static int libc_readv ( dvdcss_t, struct iovec *, int );
+
#ifdef WIN32
-int _win32_dvdcss_readv ( int, struct iovec *, int, char * );
-int _win32_dvdcss_aopen ( dvdcss_t, char );
-int _win32_dvdcss_aclose ( int );
-int _win32_dvdcss_aseek ( int, int, int );
-int _win32_dvdcss_aread ( int, void *, int );
+static int win2k_open ( dvdcss_t, char const * );
+static int aspi_open ( dvdcss_t, char const * );
+static int win2k_seek ( dvdcss_t, int );
+static int aspi_seek ( dvdcss_t, int );
+static int win2k_read ( dvdcss_t, void *, int );
+static int aspi_read ( dvdcss_t, void *, int );
+static int win_readv ( dvdcss_t, struct iovec *, int );
+
+static int aspi_read_internal ( int, void *, int );
#endif
-/*****************************************************************************
- * readv_*: readv() replacements for iovec-impaired C libraries
- *****************************************************************************/
-#if defined( WIN32 )
-static inline int readv( int i_fd, struct iovec * p_iovec, int i_count )
+int _dvdcss_use_ioctls( dvdcss_t dvdcss )
{
- int i_index, i_len, i_total = 0;
- unsigned char *p_base;
- int i_bytes;
-
- for( i_index = i_count; i_index; i_index-- )
- {
- i_len = p_iovec->iov_len;
- p_base = p_iovec->iov_base;
-
- /* Loop is unrolled one time to spare the (i_bytes <= 0) test */
-
- if( i_len > 0 )
- {
- i_bytes = read( i_fd, p_base, i_len );
-
- if( i_bytes < 0 )
- {
- /* One of the reads failed, too bad.
- We won't even bother returning the reads that went ok,
- and as in the posix spec the file postition is left
- unspecified after a failure */
- return -1;
- }
-
- i_total += i_bytes;
-
- if( i_bytes != i_len )
+#if defined( WIN32 )
+ if( dvdcss->b_file )
{
- /* we reached the end of the file or a signal interrupted
- the read */
- return i_total;
- }
- }
-
- p_iovec++;
+ return 0;
}
- return i_total;
-}
-#endif /* WIN32 */
-
-int _dvdcss_use_ioctls( dvdcss_t dvdcss )
-{
-#if defined( WIN32 )
- /* Some one need to implement this for Windows */
+ /* FIXME: implement this for Windows */
if( WIN2K )
{
return 1;
@@ -161,68 +128,50 @@
int _dvdcss_open ( dvdcss_t dvdcss )
{
- char *psz_device = dvdcss->psz_device;
+ char psz_debug[200];
+ char const *psz_device = dvdcss->psz_device;
-#if defined( WIN32 )
- if( WIN2K )
- {
- char psz_dvd[7];
- _snprintf( psz_dvd, 7, "\\\\.\\%c:", psz_device[0] );
+ snprintf( psz_debug, 199, "opening target `%s'", psz_device );
+ psz_debug[199] = '\0';
+ _dvdcss_debug( dvdcss, psz_debug );
- /* To have access to ioctls, we need read and write access to the
- * device. This is only allowed if you have administrator priviledges
- * so we allow for a fallback method where ioctls are not available but
- * we at least have read access to the device.
- * (See Microsoft Q241374: Read and Write Access Required for SCSI
- * Pass Through Requests) */
- (HANDLE) dvdcss->i_fd =
- CreateFile( psz_dvd, GENERIC_READ | GENERIC_WRITE,
- FILE_SHARE_READ | FILE_SHARE_WRITE,
- NULL, OPEN_EXISTING,
- FILE_FLAG_RANDOM_ACCESS, NULL );
+#if defined( WIN32 )
+ /* If device is not "X:", we are actually opening a file. */
+ dvdcss->b_file = !psz_device[0] || psz_device[1] != ':' || psz_device[3];
- if( (HANDLE) dvdcss->i_fd == INVALID_HANDLE_VALUE )
- (HANDLE) dvdcss->i_fd =
- CreateFile( psz_dvd, GENERIC_READ, FILE_SHARE_READ,
- NULL, OPEN_EXISTING,
- FILE_FLAG_RANDOM_ACCESS, NULL );
+ /* Initialize readv temporary buffer */
+ dvdcss->p_readv_buffer = NULL;
+ dvdcss->i_readv_buf_size = 0;
- if( (HANDLE) dvdcss->i_fd == INVALID_HANDLE_VALUE )
+ if( !dvdcss->b_file && WIN2K )
{
- _dvdcss_error( dvdcss, "failed opening device" );
- return -1;
- }
+ _dvdcss_debug( dvdcss, "using Win2K API for access" );
+ dvdcss->pf_seek = win2k_seek;
+ dvdcss->pf_read = win2k_read;
+ dvdcss->pf_readv = win_readv;
+ return win2k_open( dvdcss, psz_device );
}
- else
- {
- dvdcss->i_fd = _win32_dvdcss_aopen( dvdcss, psz_device[0] );
- if( dvdcss->i_fd == -1 )
+ else if( !dvdcss->b_file )
{
- _dvdcss_error( dvdcss, "failed opening device" );
- return -1;
- }
+ _dvdcss_debug( dvdcss, "using ASPI for access" );
+ dvdcss->pf_seek = aspi_seek;
+ dvdcss->pf_read = aspi_read;
+ dvdcss->pf_readv = win_readv;
+ return aspi_open( dvdcss, psz_device );
}
-
- /* initialise readv temporary buffer */
- dvdcss->p_readv_buffer = NULL;
- dvdcss->i_readv_buf_size = 0;
-
-#else
- dvdcss->i_fd = dvdcss->i_read_fd = open( psz_device, 0 );
-
- if( dvdcss->i_fd == -1 )
+ else
+#endif
{
- _dvdcss_error( dvdcss, "failed opening device" );
- return -1;
+ _dvdcss_debug( dvdcss, "using libc for access" );
+ dvdcss->pf_seek = libc_seek;
+ dvdcss->pf_read = libc_read;
+ dvdcss->pf_readv = libc_readv;
+ return libc_open( dvdcss, psz_device );
}
-
-#endif
-
- return 0;
}
#ifndef WIN32
-int _dvdcss_raw_open ( dvdcss_t dvdcss, char *psz_device )
+int _dvdcss_raw_open ( dvdcss_t dvdcss, char const *psz_device )
{
dvdcss->i_raw_fd = open( psz_device, 0 );
@@ -243,13 +192,21 @@
int _dvdcss_close ( dvdcss_t dvdcss )
{
#if defined( WIN32 )
- if( WIN2K )
+ if( dvdcss->b_file )
+ {
+ close( dvdcss->i_fd );
+ }
+ else if( WIN2K )
{
CloseHandle( (HANDLE) dvdcss->i_fd );
}
- else
+ else /* ASPI */
{
- _win32_dvdcss_aclose( dvdcss->i_fd );
+ struct w32_aspidev *fd = (struct w32_aspidev *) dvdcss->i_fd;
+
+ /* Unload aspi and free w32_aspidev structure */
+ FreeLibrary( (HMODULE) fd->hASPI );
+ free( (void*) dvdcss->i_fd );
}
/* Free readv temporary buffer */
@@ -260,6 +217,7 @@
dvdcss->i_readv_buf_size = 0;
}
+ return 0;
#else
close( dvdcss->i_fd );
@@ -269,198 +227,68 @@
dvdcss->i_raw_fd = -1;
}
-#endif
-
return 0;
-}
-
-int _dvdcss_seek ( dvdcss_t dvdcss, int i_blocks )
-{
-#if defined( WIN32 )
- dvdcss->i_seekpos = i_blocks;
-
- if( WIN2K )
- {
- LARGE_INTEGER li_read;
-
-#ifndef INVALID_SET_FILE_POINTER
-#define INVALID_SET_FILE_POINTER ((DWORD)-1)
#endif
-
- li_read.QuadPart = (LONGLONG)i_blocks * DVDCSS_BLOCK_SIZE;
-
- li_read.LowPart = SetFilePointer( (HANDLE) dvdcss->i_fd,
- li_read.LowPart,
- &li_read.HighPart, FILE_BEGIN );
- if( (li_read.LowPart == INVALID_SET_FILE_POINTER)
- && GetLastError() != NO_ERROR)
- {
- li_read.QuadPart = -DVDCSS_BLOCK_SIZE;
- }
-
- li_read.QuadPart /= DVDCSS_BLOCK_SIZE;
- return (int)li_read.QuadPart;
- }
- else
- {
- return ( _win32_dvdcss_aseek( dvdcss->i_fd, i_blocks, SEEK_SET ) );
- }
-#else
- off_t i_read;
-
- dvdcss->i_seekpos = i_blocks;
-
- i_read = lseek( dvdcss->i_read_fd,
- (off_t)i_blocks * (off_t)DVDCSS_BLOCK_SIZE, SEEK_SET );
-
- if( i_read < 0 )
- {
- _dvdcss_error( dvdcss, "seek error" );
- }
-
- return i_read / DVDCSS_BLOCK_SIZE;
-#endif
-
}
-int _dvdcss_read ( dvdcss_t dvdcss, void *p_buffer, int i_blocks )
-{
-#if defined( WIN32 )
- if( WIN2K )
- {
- int i_bytes;
-
- if( !ReadFile( (HANDLE) dvdcss->i_fd, p_buffer,
- i_blocks * DVDCSS_BLOCK_SIZE,
- (LPDWORD)&i_bytes, NULL ) )
- {
- return -1;
- }
- return i_bytes / DVDCSS_BLOCK_SIZE;
- }
- else
- {
- return _win32_dvdcss_aread( dvdcss->i_fd, p_buffer, i_blocks );
- }
+/* Following functions are local */
+/*****************************************************************************
+ * Open commands.
+ *****************************************************************************/
+static int libc_open ( dvdcss_t dvdcss, char const *psz_device )
+{
+#if !defined( WIN32 )
+ dvdcss->i_fd = dvdcss->i_read_fd = open( psz_device, 0 );
#else
- int i_ret;
- /* TODO: partial reads are wrong,i.e 2200/2048 = 1
- * but the location has advanced 2200 bytes (lseek possition that is) */
- i_ret = read( dvdcss->i_read_fd, p_buffer,
- (off_t)i_blocks * DVDCSS_BLOCK_SIZE );
- if( i_ret < 0 )
- {
- _dvdcss_error( dvdcss, "read error" );
- return i_ret;
- }
-
- return i_ret / DVDCSS_BLOCK_SIZE;
+ dvdcss->i_fd = dvdcss->i_read_fd = open( psz_device, O_BINARY );
#endif
-}
-
-int _dvdcss_readv ( dvdcss_t dvdcss, struct iovec *p_iovec, int i_blocks )
-{
- int i_read;
-
-#if defined( WIN32 )
- /* Check the size of the readv temp buffer, just in case we need to
- * realloc something bigger */
- if( dvdcss->i_readv_buf_size < i_blocks * DVDCSS_BLOCK_SIZE )
- {
- dvdcss->i_readv_buf_size = i_blocks * DVDCSS_BLOCK_SIZE;
-
- if( dvdcss->p_readv_buffer ) free( dvdcss->p_readv_buffer );
-
- /* Allocate a buffer which will be used as a temporary storage
- * for readv */
- dvdcss->p_readv_buffer = malloc( dvdcss->i_readv_buf_size );
- if( !dvdcss->p_readv_buffer )
+ if( dvdcss->i_fd == -1 )
{
- _dvdcss_error( dvdcss, " failed (readv)" );
+ _dvdcss_error( dvdcss, "failed opening device" );
return -1;
}
- }
- i_read = _win32_dvdcss_readv( dvdcss->i_fd, p_iovec, i_blocks,
- dvdcss->p_readv_buffer );
- return i_read;
-
-#else
- i_read = readv( dvdcss->i_read_fd, p_iovec, i_blocks );
- return i_read / DVDCSS_BLOCK_SIZE;
-
-#endif
+ return 0;
}
-
#if defined( WIN32 )
-
-/*****************************************************************************
- * _win32_dvdcss_readv: vectored read using ReadFile for Win2K and
- * _win32_dvdcss_aread for win9x
- *****************************************************************************/
-int _win32_dvdcss_readv( int i_fd, struct iovec *p_iovec,
- int i_num_buffers, char *p_tmp_buffer )
+static int win2k_open ( dvdcss_t dvdcss, char const *psz_device )
{
- int i_index;
- int i_blocks, i_blocks_total = 0;
+ char psz_dvd[7];
+ _snprintf( psz_dvd, 7, "\\\\.\\%c:", psz_device[0] );
- for( i_index = i_num_buffers; i_index; i_index-- )
- {
- i_blocks_total += p_iovec[i_index-1].iov_len;
- }
-
- if( i_blocks_total <= 0 ) return 0;
+ /* To work around an M$ bug in IOCTL_DVD_READ_STRUCTURE, we need read
+ * _and_ write access to the device (so we can make SCSI Pass Through
+ * Requests). Unfortunately this is only allowed if you have
+ * administrator priviledges so we allow for a fallback method with
+ * only read access to the device (in this case ioctl_ReadCopyright()
+ * won't send back the right result).
+ * (See Microsoft Q241374: Read and Write Access Required for SCSI
+ * Pass Through Requests) */
+ (HANDLE) dvdcss->i_fd =
+ CreateFile( psz_dvd, GENERIC_READ | GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE,
+ NULL, OPEN_EXISTING,
+ FILE_FLAG_RANDOM_ACCESS, NULL );
- i_blocks_total /= DVDCSS_BLOCK_SIZE;
+ if( (HANDLE) dvdcss->i_fd == INVALID_HANDLE_VALUE )
+ (HANDLE) dvdcss->i_fd =
+ CreateFile( psz_dvd, GENERIC_READ, FILE_SHARE_READ,
+ NULL, OPEN_EXISTING,
+ FILE_FLAG_RANDOM_ACCESS, NULL );
- if( WIN2K )
- {
- unsigned long int i_bytes;
- if( !ReadFile( (HANDLE)i_fd, p_tmp_buffer,
- i_blocks_total * DVDCSS_BLOCK_SIZE, &i_bytes, NULL ) )
+ if( (HANDLE) dvdcss->i_fd == INVALID_HANDLE_VALUE )
{
+ _dvdcss_error( dvdcss, "failed opening device" );
return -1;
- /* The read failed... too bad.
- As in the posix spec the file postition is left
- unspecified after a failure */
- }
- i_blocks = i_bytes / DVDCSS_BLOCK_SIZE;
- }
- else /* Win9x */
- {
- i_blocks = _win32_dvdcss_aread( i_fd, p_tmp_buffer, i_blocks_total );
- if( i_blocks < 0 )
- {
- return -1; /* idem */
- }
}
- /* We just have to copy the content of the temp buffer into the iovecs */
- i_index = 0;
- i_blocks_total = i_blocks;
- while( i_blocks_total > 0 )
- {
- memcpy( p_iovec[i_index].iov_base,
- &p_tmp_buffer[(i_blocks - i_blocks_total) * DVDCSS_BLOCK_SIZE],
- p_iovec[i_index].iov_len );
- /* if we read less blocks than asked, we'll just end up copying
- garbage, this isn't an issue as we return the number of
- blocks actually read */
- i_blocks_total -= ( p_iovec[i_index].iov_len / DVDCSS_BLOCK_SIZE );
- i_index++;
- }
-
- return i_blocks;
+ return 0;
}
-/*****************************************************************************
- * _win32_dvdcss_aopen: open dvd drive (load aspi and init w32_aspidev
- * structure)
- *****************************************************************************/
-int _win32_dvdcss_aopen( dvdcss_t dvdcss, char c_drive )
+static int aspi_open( dvdcss_t dvdcss, char const * psz_device )
{
HMODULE hASPI;
DWORD dwSupportInfo;
@@ -468,7 +296,9 @@
int i, j, i_hostadapters;
long (*lpGetSupport)( void );
long (*lpSendCommand)( void* );
+ char c_drive = psz_device[0];
+ /* load aspi and init w32_aspidev structure */
hASPI = LoadLibrary( "wnaspi32.dll" );
if( hASPI == NULL )
{
@@ -481,7 +311,7 @@
if(lpGetSupport == NULL || lpSendCommand == NULL )
{
- _dvdcss_debug( dvdcss, "unable to get aspi function pointers" );
+ _dvdcss_error( dvdcss, "unable to get aspi function pointers" );
FreeLibrary( hASPI );
return -1;
}
@@ -490,7 +320,7 @@
if( HIBYTE( LOWORD ( dwSupportInfo ) ) == SS_NO_ADAPTERS )
{
- _dvdcss_debug( dvdcss, "no host adapters found (aspi)" );
+ _dvdcss_error( dvdcss, "no ASPI adapters found" );
FreeLibrary( hASPI );
return -1;
}
@@ -505,6 +335,7 @@
i_hostadapters = LOBYTE( LOWORD( dwSupportInfo ) );
if( i_hostadapters == 0 )
{
+ _dvdcss_error( dvdcss, "no ASPI adapters ready" );
FreeLibrary( hASPI );
return -1;
}
@@ -512,6 +343,7 @@
fd = malloc( sizeof( struct w32_aspidev ) );
if( fd == NULL )
{
+ _dvdcss_error( dvdcss, "not enough memory" );
FreeLibrary( hASPI );
return -1;
}
@@ -540,47 +372,97 @@
if( (srbDiskInfo.SRB_Status == SS_COMP) &&
(srbDiskInfo.SRB_Int13HDriveInfo == c_drive) )
{
+ /* Make sure this is a cdrom device */
+ struct SRB_GDEVBlock srbGDEVBlock;
+
+ memset( &srbGDEVBlock, 0, sizeof(struct SRB_GDEVBlock) );
+ srbGDEVBlock.SRB_Cmd = SC_GET_DEV_TYPE;
+ srbGDEVBlock.SRB_HaId = i;
+ srbGDEVBlock.SRB_Target = j;
+
+ lpSendCommand( (void*) &srbGDEVBlock );
+
+ if( ( srbGDEVBlock.SRB_Status == SS_COMP ) &&
+ ( srbGDEVBlock.SRB_DeviceType == DTYPE_CDROM ) )
+ {
fd->i_sid = MAKEWORD( i, j );
- return (int) fd;
+ dvdcss->i_fd = (int) fd;
+ return 0;
+ }
+ else
+ {
+ free( (void*) fd );
+ FreeLibrary( hASPI );
+ _dvdcss_error( dvdcss,"this is not a cdrom drive" );
+ return -1;
+ }
}
}
}
free( (void*) fd );
FreeLibrary( hASPI );
- _dvdcss_debug( dvdcss, "unable to get haid and target (aspi)" );
- return( -1 );
+ _dvdcss_error( dvdcss, "unable to get haid and target (aspi)" );
+ return -1;
}
+#endif
/*****************************************************************************
- * _win32_dvdcss_aclose: close dvd drive (unload aspi and free w32_aspidev
- * structure)
+ * Seek commands.
*****************************************************************************/
-int _win32_dvdcss_aclose( int i_fd )
+static int libc_seek( dvdcss_t dvdcss, int i_blocks )
{
- struct w32_aspidev *fd = (struct w32_aspidev *) i_fd;
+ off_t i_read;
- FreeLibrary( (HMODULE) fd->hASPI );
- free( (void*) i_fd );
+ dvdcss->i_seekpos = i_blocks;
- return 0;
+ i_read = lseek( dvdcss->i_read_fd,
+ (off_t)i_blocks * (off_t)DVDCSS_BLOCK_SIZE, SEEK_SET );
+
+ if( i_read < 0 )
+ {
+ _dvdcss_error( dvdcss, "seek error" );
+ }
+
+ return i_read / DVDCSS_BLOCK_SIZE;
}
-/*****************************************************************************
- * _win32_dvdcss_aseek: aspi version of _dvdcss_seek
- *
- * returns the number of blocks read.
- *****************************************************************************/
-int _win32_dvdcss_aseek( int i_fd, int i_blocks, int i_method )
+#if defined( WIN32 )
+static int win2k_seek( dvdcss_t dvdcss, int i_blocks )
+{
+ LARGE_INTEGER li_read;
+
+ dvdcss->i_seekpos = i_blocks;
+
+#ifndef INVALID_SET_FILE_POINTER
+# define INVALID_SET_FILE_POINTER ((DWORD)-1)
+#endif
+
+ li_read.QuadPart = (LONGLONG)i_blocks * DVDCSS_BLOCK_SIZE;
+
+ li_read.LowPart = SetFilePointer( (HANDLE) dvdcss->i_fd,
+ li_read.LowPart,
+ &li_read.HighPart, FILE_BEGIN );
+ if( (li_read.LowPart == INVALID_SET_FILE_POINTER)
+ && GetLastError() != NO_ERROR)
+ {
+ li_read.QuadPart = -DVDCSS_BLOCK_SIZE;
+ }
+
+ li_read.QuadPart /= DVDCSS_BLOCK_SIZE;
+ return (int)li_read.QuadPart;
+}
+
+static int aspi_seek( dvdcss_t dvdcss, int i_blocks )
{
int i_old_blocks;
char sz_buf[ DVDCSS_BLOCK_SIZE ];
- struct w32_aspidev *fd = (struct w32_aspidev *) i_fd;
+ struct w32_aspidev *fd = (struct w32_aspidev *) dvdcss->i_fd;
i_old_blocks = fd->i_blocks;
fd->i_blocks = i_blocks;
- if( _win32_dvdcss_aread( i_fd, sz_buf, 1 ) == -1 )
+ if( aspi_read_internal( dvdcss->i_fd, sz_buf, 1 ) == -1 )
{
fd->i_blocks = i_old_blocks;
return -1;
@@ -590,13 +472,179 @@
return fd->i_blocks;
}
+#endif
+
+/*****************************************************************************
+ * Read commands.
+ *****************************************************************************/
+static int libc_read ( dvdcss_t dvdcss, void *p_buffer, int i_blocks )
+{
+ int i_ret;
+ /* TODO: partial reads are wrong,i.e 2200/2048 = 1
+ * but the location has advanced 2200 bytes (lseek possition that is) */
+ i_ret = read( dvdcss->i_read_fd, p_buffer,
+ (off_t)i_blocks * DVDCSS_BLOCK_SIZE );
+ if( i_ret < 0 )
+ {
+ _dvdcss_error( dvdcss, "read error" );
+ return i_ret;
+ }
+
+ return i_ret / DVDCSS_BLOCK_SIZE;
+}
+
+#if defined( WIN32 )
+static int win2k_read ( dvdcss_t dvdcss, void *p_buffer, int i_blocks )
+{
+ int i_bytes;
+
+ if( !ReadFile( (HANDLE) dvdcss->i_fd, p_buffer,
+ i_blocks * DVDCSS_BLOCK_SIZE,
+ (LPDWORD)&i_bytes, NULL ) )
+ {
+ return -1;
+ }
+
+ return i_bytes / DVDCSS_BLOCK_SIZE;
+}
+
+static int aspi_read ( dvdcss_t dvdcss, void *p_buffer, int i_blocks )
+{
+ return aspi_read_internal( dvdcss->i_fd, p_buffer, i_blocks );
+}
+#endif
/*****************************************************************************
- * _win32_dvdcss_aread: aspi version of _dvdcss_read
- *
- * returns the number of blocks read.
+ * Readv commands.
*****************************************************************************/
-int _win32_dvdcss_aread( int i_fd, void *p_data, int i_blocks )
+static int libc_readv ( dvdcss_t dvdcss, struct iovec *p_iovec, int i_blocks )
+{
+#if defined( WIN32 )
+ int i_index, i_len, i_total = 0;
+ unsigned char *p_base;
+ int i_bytes;
+
+ for( i_index = i_blocks;
+ i_index;
+ i_index--, p_iovec++ )
+ {
+ i_len = p_iovec->iov_len;
+ p_base = p_iovec->iov_base;
+
+ if( i_len <= 0 )
+ {
+ continue;
+ }
+
+ i_bytes = read( dvdcss->i_fd, p_base, i_len );
+
+ if( i_bytes < 0 )
+ {
+ /* One of the reads failed, too bad.
+ * We won't even bother returning the reads that went ok,
+ * and as in the posix spec the file postition is left
+ * unspecified after a failure */
+ return -1;
+ }
+
+ i_total += i_bytes;
+
+ if( i_bytes != i_len )
+ {
+ /* We reached the end of the file or a signal interrupted
+ * the read. Return a partial read. */
+ return i_total / DVDCSS_BLOCK_SIZE;
+ }
+ }
+
+ return i_total / DVDCSS_BLOCK_SIZE;
+#else
+ int i_read = readv( dvdcss->i_read_fd, p_iovec, i_blocks );
+
+ return i_read / DVDCSS_BLOCK_SIZE;
+#endif
+}
+
+#if defined( WIN32 )
+/*****************************************************************************
+ * win_readv: vectored read using ReadFile for Win2K and ASPI for win9x
+ *****************************************************************************/
+static int win_readv ( dvdcss_t dvdcss, struct iovec *p_iovec, int i_blocks )
+{
+ int i_index;
+ int i_blocks_read, i_blocks_total = 0;
+
+ /* Check the size of the readv temp buffer, just in case we need to
+ * realloc something bigger */
+ if( dvdcss->i_readv_buf_size < i_blocks * DVDCSS_BLOCK_SIZE )
+ {
+ dvdcss->i_readv_buf_size = i_blocks * DVDCSS_BLOCK_SIZE;
+
+ if( dvdcss->p_readv_buffer ) free( dvdcss->p_readv_buffer );
+
+ /* Allocate a buffer which will be used as a temporary storage
+ * for readv */
+ dvdcss->p_readv_buffer = malloc( dvdcss->i_readv_buf_size );
+ if( !dvdcss->p_readv_buffer )
+ {
+ _dvdcss_error( dvdcss, " failed (readv)" );
+ return -1;
+ }
+ }
+
+ for( i_index = i_blocks; i_index; i_index-- )
+ {
+ i_blocks_total += p_iovec[i_index-1].iov_len;
+ }
+
+ if( i_blocks_total <= 0 ) return 0;
+
+ i_blocks_total /= DVDCSS_BLOCK_SIZE;
+
+ if( WIN2K )
+ {
+ unsigned long int i_bytes;
+ if( !ReadFile( (HANDLE)dvdcss->i_fd, dvdcss->p_readv_buffer,
+ i_blocks_total * DVDCSS_BLOCK_SIZE, &i_bytes, NULL ) )
+ {
+ /* The read failed... too bad.
+ * As in the posix spec the file postition is left
+ * unspecified after a failure */
+ return -1;
+ }
+ i_blocks_read = i_bytes / DVDCSS_BLOCK_SIZE;
+ }
+ else /* Win9x */
+ {
+ i_blocks_read = aspi_read_internal( dvdcss->i_fd,
+ dvdcss->p_readv_buffer,
+ i_blocks_total );
+ if( i_blocks_read < 0 )
+ {
+ /* See above */
+ return -1;
+ }
+ }
+
+ /* We just have to copy the content of the temp buffer into the iovecs */
+ for( i_index = 0, i_blocks_total = i_blocks_read;
+ i_blocks_total > 0;
+ i_index++ )
+ {
+ memcpy( p_iovec[i_index].iov_base,
+ dvdcss->p_readv_buffer + (i_blocks_read - i_blocks_total)
+ * DVDCSS_BLOCK_SIZE,
+ p_iovec[i_index].iov_len );
+ /* if we read less blocks than asked, we'll just end up copying
+ * garbage, this isn't an issue as we return the number of
+ * blocks actually read */
+ i_blocks_total -= ( p_iovec[i_index].iov_len / DVDCSS_BLOCK_SIZE );
+ }
+
+ return i_blocks_read;
+}
+
+static int aspi_read_internal( int i_fd, void *p_data, int i_blocks )
{
HANDLE hEvent;
struct SRB_ExecSCSICmd ssc;
@@ -638,9 +686,9 @@
ResetEvent( hEvent );
fd->lpSendCommand( (void*) &ssc );
- /* transfer the next 64kb (_win32_dvdcss_aread is called recursively)
+ /* transfer the next 64kb (aspi_read_internal is called recursively)
* We need to check the status of the read on return */
- if( _win32_dvdcss_aread( i_fd, (u8*) p_data + 32 * DVDCSS_BLOCK_SIZE,
+ if( aspi_read_internal( i_fd, (u8*) p_data + 32 * DVDCSS_BLOCK_SIZE,
i_blocks - 32) < 0 )
{
return -1;
Index: libmpdvdkit2/device.h
===================================================================
RCS file: /cvsroot/mplayer/main/libmpdvdkit2/device.h,v
retrieving revision 1.1
diff -u -r1.1 device.h
--- libmpdvdkit2/device.h 16 Aug 2002 22:35:45 -0000 1.1
+++ libmpdvdkit2/device.h 26 Dec 2002 13:32:14 -0000
@@ -46,12 +46,11 @@
int _dvdcss_use_ioctls ( dvdcss_t );
int _dvdcss_open ( dvdcss_t );
int _dvdcss_close ( dvdcss_t );
-int _dvdcss_readv ( dvdcss_t, struct iovec *, int );
/*****************************************************************************
* Device reading prototypes, raw-device specific
*****************************************************************************/
#ifndef WIN32
-int _dvdcss_raw_open ( dvdcss_t, char * );
+int _dvdcss_raw_open ( dvdcss_t, char const * );
#endif
Index: libmpdvdkit2/ioctl.c
===================================================================
RCS file: /cvsroot/mplayer/main/libmpdvdkit2/ioctl.c,v
retrieving revision 1.2
diff -u -r1.2 ioctl.c
--- libmpdvdkit2/ioctl.c 11 Nov 2002 00:53:46 -0000 1.2
+++ libmpdvdkit2/ioctl.c 26 Dec 2002 13:32:15 -0000
@@ -11,6 +11,7 @@
* Eugenio Jarosiewicz <ej0 at cise.ufl.edu>
* David Sieb?rger <drs-videolan at rucus.ru.ac.za>
* Alex Strelnikov <lelik at os2.ru>
+ * Gildas Bazin <gbazin at 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
@@ -211,18 +212,20 @@
*pi_copyright = dvdbs.copyrightProtectionSystemType;
#elif defined( WIN32 )
- if( WIN2K ) /* NT/Win2000/Whistler */
+ if( WIN2K ) /* NT/2k/XP */
{
DWORD tmp;
u8 p_buffer[ 8 ];
SCSI_PASS_THROUGH_DIRECT sptd;
- memset( &sptd, 0, sizeof( sptd ) );
- memset( &p_buffer, 0, sizeof( p_buffer ) );
-
/* When using IOCTL_DVD_READ_STRUCTURE and
DVD_COPYRIGHT_DESCRIPTOR, CopyrightProtectionType
- is always 6. So we send a raw scsi command instead. */
+ seems to be always 6 ???
+ To work around this M$ bug we try to send a raw scsi command
+ instead (if we've got enough privileges to do so). */
+
+ memset( &sptd, 0, sizeof( sptd ) );
+ memset( &p_buffer, 0, sizeof( p_buffer ) );
sptd.Length = sizeof( SCSI_PASS_THROUGH_DIRECT );
sptd.CdbLength = 12;
@@ -242,8 +245,11 @@
&sptd, sizeof( SCSI_PASS_THROUGH_DIRECT ),
&tmp, NULL ) ? 0 : -1;
+ if( i_ret == 0 )
+ {
*pi_copyright = p_buffer[ 4 ];
}
+ }
else
{
INIT_SSC( GPCMD_READ_DVD_STRUCTURE, 8 );
@@ -384,7 +390,7 @@
memcpy( p_key, dvdbs.discKeyStructures, DVD_DISCKEY_SIZE );
#elif defined( WIN32 )
- if( WIN2K ) /* NT/Win2000/Whistler */
+ if( WIN2K ) /* NT/2k/XP */
{
DWORD tmp;
u8 buffer[DVD_DISK_KEY_LENGTH];
@@ -552,7 +558,7 @@
memcpy( p_key, dvdbs.titleKeyValue, DVD_KEY_SIZE );
#elif defined( WIN32 )
- if( WIN2K ) /* NT/Win2000/Whistler */
+ if( WIN2K ) /* NT/2k/XP */
{
DWORD tmp;
u8 buffer[DVD_BUS_KEY_LENGTH];
@@ -564,7 +570,8 @@
key->SessionId = *pi_agid;
key->KeyType = DvdTitleKey;
key->KeyFlags = 0;
- key->Parameters.TitleOffset.QuadPart = (LONGLONG) i_pos;
+ key->Parameters.TitleOffset.QuadPart = (LONGLONG) i_pos *
+ 2048 /*DVDCSS_BLOCK_SIZE*/;
i_ret = DeviceIoControl( (HANDLE) i_fd, IOCTL_DVD_READ_KEY, key,
key->KeyLength, key, key->KeyLength, &tmp, NULL ) ? 0 : -1;
@@ -697,7 +704,7 @@
*pi_agid = dvdbs.grantID;
#elif defined( WIN32 )
- if( WIN2K ) /* NT/Win2000/Whistler */
+ if( WIN2K ) /* NT/2k/XP */
{
ULONG id;
DWORD tmp;
@@ -818,7 +825,7 @@
memcpy( p_challenge, dvdbs.challengeKeyValue, DVD_CHALLENGE_SIZE );
#elif defined( WIN32 )
- if( WIN2K ) /* NT/Win2000/Whistler */
+ if( WIN2K ) /* NT/2k/XP */
{
DWORD tmp;
u8 buffer[DVD_CHALLENGE_KEY_LENGTH];
@@ -950,7 +957,7 @@
*pi_asf = dvdbs.successFlag;
#elif defined( WIN32 )
- if( WIN2K ) /* NT/Win2000/Whistler */
+ if( WIN2K ) /* NT/2k/XP */
{
DWORD tmp;
u8 buffer[DVD_ASF_LENGTH];
@@ -1085,7 +1092,7 @@
memcpy( p_key, dvdbs.key1Value, DVD_KEY_SIZE );
#elif defined( WIN32 )
- if( WIN2K ) /* NT/Win2000/Whistler */
+ if( WIN2K ) /* NT/2k/XP */
{
DWORD tmp;
u8 buffer[DVD_BUS_KEY_LENGTH];
@@ -1202,7 +1209,7 @@
i_ret = ioctl( i_fd, DKIOCDVDSENDKEY, &dvd );
#elif defined( WIN32 )
- if( WIN2K ) /* NT/Win2000/Whistler */
+ if( WIN2K ) /* NT/2k/XP */
{
DWORD tmp;
@@ -1330,7 +1337,7 @@
i_ret = ioctl( i_fd, DKIOCDVDSENDKEY, &dvd );
#elif defined( WIN32 )
- if( WIN2K ) /* NT/Win2000/Whistler */
+ if( WIN2K ) /* NT/2k/XP */
{
DWORD tmp;
u8 buffer[DVD_CHALLENGE_KEY_LENGTH];
@@ -1467,7 +1474,7 @@
i_ret = ioctl( i_fd, DKIOCDVDSENDKEY, &dvd );
#elif defined( WIN32 )
- if( WIN2K ) /* NT/Win2000/Whistler */
+ if( WIN2K ) /* NT/2k/XP */
{
DWORD tmp;
u8 buffer[DVD_BUS_KEY_LENGTH];
@@ -1613,7 +1620,7 @@
*p_scheme = dvdbs.rpcScheme;
#elif defined( WIN32 )
- if( WIN2K ) /* NT/Win2000/Whistler */
+ if( WIN2K ) /* NT/2k/XP */
{
DWORD tmp;
u8 buffer[ DVD_REGION_LENGTH ];
@@ -1854,10 +1861,10 @@
#if defined( __QNXNTO__ )
/*****************************************************************************
- * QNXInitCPT: initialize a ssc structure for the win32 aspi layer
+ * QNXInitCPT: initialize a CPT structure for QNX Neutrino
*****************************************************************************
- * This function initializes a ssc raw device command structure for future
- * use, either a read command or a write command.
+ * This function initializes a cpt command structure for future use,
+ * either a read command or a write command.
*****************************************************************************/
static void QNXInitCPT( CAM_PASS_THRU * p_cpt, int i_type )
{
Index: libmpdvdkit2/ioctl.h
===================================================================
RCS file: /cvsroot/mplayer/main/libmpdvdkit2/ioctl.h,v
retrieving revision 1.1
diff -u -r1.1 ioctl.h
--- libmpdvdkit2/ioctl.h 16 Aug 2002 22:35:45 -0000 1.1
+++ libmpdvdkit2/ioctl.h 26 Dec 2002 13:32:15 -0000
@@ -188,7 +188,7 @@
#define IOCTL_DVD_END_SESSION CTL_CODE(FILE_DEVICE_DVD, 0x0403, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_DVD_GET_REGION CTL_CODE(FILE_DEVICE_DVD, 0x0405, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_DVD_SEND_KEY2 CTL_CODE(FILE_DEVICE_DVD, 0x0406, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
-
+#define IOCTL_DVD_READ_STRUCTURE CTL_CODE(FILE_DEVICE_DVD, 0x0450, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_SCSI_PASS_THROUGH_DIRECT CTL_CODE(FILE_DEVICE_CONTROLLER, 0x0405, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
#define DVD_CHALLENGE_KEY_LENGTH (12 + sizeof(DVD_COPY_PROTECT_KEY))
@@ -198,11 +198,41 @@
#define DVD_ASF_LENGTH (sizeof(DVD_ASF) + sizeof(DVD_COPY_PROTECT_KEY))
#define DVD_REGION_LENGTH (sizeof(DVD_REGION))
+#define DVD_COPYRIGHT_MASK 0x00000040
+#define DVD_NOT_COPYRIGHTED 0x00000000
+#define DVD_COPYRIGHTED 0x00000040
+
+#define DVD_SECTOR_PROTECT_MASK 0x00000020
+#define DVD_SECTOR_NOT_PROTECTED 0x00000000
+#define DVD_SECTOR_PROTECTED 0x00000020
+
#define SCSI_IOCTL_DATA_OUT 0
#define SCSI_IOCTL_DATA_IN 1
typedef ULONG DVD_SESSION_ID, *PDVD_SESSION_ID;
+typedef enum DVD_STRUCTURE_FORMAT {
+ DvdPhysicalDescriptor,
+ DvdCopyrightDescriptor,
+ DvdDiskKeyDescriptor,
+ DvdBCADescriptor,
+ DvdManufacturerDescriptor,
+ DvdMaxDescriptor
+} DVD_STRUCTURE_FORMAT, *PDVD_STRUCTURE_FORMAT;
+
+typedef struct DVD_READ_STRUCTURE {
+ LARGE_INTEGER BlockByteOffset;
+ DVD_STRUCTURE_FORMAT Format;
+ DVD_SESSION_ID SessionId;
+ UCHAR LayerNumber;
+} DVD_READ_STRUCTURE, *PDVD_READ_STRUCTURE;
+
+typedef struct _DVD_COPYRIGHT_DESCRIPTOR {
+ UCHAR CopyrightProtectionType;
+ UCHAR RegionManagementInformation;
+ USHORT Reserved;
+} DVD_COPYRIGHT_DESCRIPTOR, *PDVD_COPYRIGHT_DESCRIPTOR;
+
typedef enum
{
DvdChallengeKey = 0x01,
@@ -272,8 +302,10 @@
#define WIN2K ( GetVersion() < 0x80000000 )
#define ASPI_HAID 0
#define ASPI_TARGET 0
+#define DTYPE_CDROM 0x05
#define SENSE_LEN 0x0E
+#define SC_GET_DEV_TYPE 0x01
#define SC_EXEC_SCSI_CMD 0x02
#define SC_GET_DISK_INFO 0x06
#define SS_COMP 0x01
@@ -307,6 +339,19 @@
unsigned char SRB_Heads;
unsigned char SRB_Sectors;
unsigned char SRB_Rsvd1[22];
+};
+
+struct SRB_GDEVBlock
+{
+ unsigned char SRB_Cmd;
+ unsigned char SRB_Status;
+ unsigned char SRB_HaId;
+ unsigned char SRB_Flags;
+ unsigned long SRB_Hdr_Rsvd;
+ unsigned char SRB_Target;
+ unsigned char SRB_Lun;
+ unsigned char SRB_DeviceType;
+ unsigned char SRB_Rsvd1;
};
struct SRB_ExecSCSICmd
Index: libmpdvdkit2/libdvdcss.c
===================================================================
RCS file: /cvsroot/mplayer/main/libmpdvdkit2/libdvdcss.c,v
retrieving revision 1.4
diff -u -r1.4 libdvdcss.c
--- libmpdvdkit2/libdvdcss.c 6 Nov 2002 23:54:27 -0000 1.4
+++ libmpdvdkit2/libdvdcss.c 26 Dec 2002 13:32:15 -0000
@@ -273,8 +273,8 @@
char sector[DVDCSS_BLOCK_SIZE];
// 32768+40 -> disc title (32 uppercase chars)
// 32768+813 -> disc manufacturing date + serial no (16 digit number)
- _dvdcss_seek( dvdcss, 32768/DVDCSS_BLOCK_SIZE);
- if(_dvdcss_read( dvdcss, sector, 1) == 1){
+ dvdcss->pf_seek( dvdcss, 32768/DVDCSS_BLOCK_SIZE);
+ if(dvdcss->pf_read( dvdcss, sector, 1) == 1){
// check disc title first:
char* title_name=§or[40];
int i=31;
@@ -363,7 +363,7 @@
}
}
- return _dvdcss_seek( dvdcss, i_blocks );
+ return dvdcss->pf_seek( dvdcss, i_blocks );
}
/**
@@ -395,7 +395,7 @@
{
int i_ret, i_index;
- i_ret = _dvdcss_read( dvdcss, p_buffer, i_blocks );
+ i_ret = dvdcss->pf_read( dvdcss, p_buffer, i_blocks );
if( i_ret <= 0
|| !dvdcss->b_scrambled
@@ -471,7 +471,7 @@
void *iov_base;
size_t iov_len;
- i_ret = _dvdcss_readv( dvdcss, _p_iovec, i_blocks );
+ i_ret = dvdcss->pf_readv( dvdcss, _p_iovec, i_blocks );
if( i_ret <= 0
|| !dvdcss->b_scrambled
Index: libmpdvdkit2/libdvdcss.h
===================================================================
RCS file: /cvsroot/mplayer/main/libmpdvdkit2/libdvdcss.h,v
retrieving revision 1.2
diff -u -r1.2 libdvdcss.h
--- libmpdvdkit2/libdvdcss.h 16 Aug 2002 22:46:01 -0000 1.2
+++ libmpdvdkit2/libdvdcss.h 26 Dec 2002 13:32:15 -0000
@@ -22,6 +22,8 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
+struct iovec;
+
/*****************************************************************************
* The libdvdcss structure
*****************************************************************************/
@@ -30,8 +32,14 @@
/* File descriptor */
char * psz_device;
int i_fd;
+ int i_read_fd;
int i_seekpos;
+ /* File handling */
+ int ( * pf_seek ) ( dvdcss_t, int );
+ int ( * pf_read ) ( dvdcss_t, void *, int );
+ int ( * pf_readv ) ( dvdcss_t, struct iovec *, int );
+
/* Decryption stuff */
int i_method;
css_t css;
@@ -46,13 +54,13 @@
int b_debug;
#ifdef WIN32
+ int b_file;
char * p_readv_buffer;
int i_readv_buf_size;
#endif
#ifndef WIN32
int i_raw_fd;
- int i_read_fd;
#endif
};
@@ -66,9 +74,6 @@
/*****************************************************************************
* Functions used across the library
*****************************************************************************/
-int _dvdcss_seek ( dvdcss_t, int );
-int _dvdcss_read ( dvdcss_t, void *, int );
-
void _dvdcss_error ( dvdcss_t, char * );
void _dvdcss_debug ( dvdcss_t, char * );
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