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vlc-1.1
Commit 164db27b authored by Jon Lech Johansen's avatar Jon Lech Johansen
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* drms: support for getting user key from firewire connected iPod under 

          GNU/Linux. requires libsysfs (sysfsutils).
parent a69b21f5
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Showing with 146 additions and 60 deletions
configure.ac
View file @ 164db27b
dnl Autoconf settings for vlc
dnl $Id: configure.ac,v 1.151 2004/01/18 11:14:22 gbazin Exp $
dnl $Id: configure.ac,v 1.152 2004/01/22 01:20:39 jlj Exp $
AC_INIT(vlc,0.7.1-cvs)
......@@ -1977,6 +1977,9 @@ AC_CHECK_HEADERS(zlib.h, [
AX_ADD_LDFLAGS([mp4 skins skins2 sap],[-lz])
] )
AC_CHECK_HEADERS(sysfs/libsysfs.h, [
AX_ADD_LDFLAGS([mp4],[-lsysfs])
] )
dnl
dnl skins module
......
modules/demux/mp4/drms.c
View file @ 164db27b
......@@ -2,7 +2,7 @@
* drms.c: DRMS
*****************************************************************************
* Copyright (C) 2004 VideoLAN
* $Id: drms.c,v 1.9 2004/01/20 17:44:30 sam Exp $
* $Id: drms.c,v 1.10 2004/01/22 01:20:39 jlj Exp $
*
* Authors: Jon Lech Johansen <jon-vl@nanocrew.net>
* Sam Hocevar <sam@zoy.org>
......@@ -54,6 +54,10 @@
# include <limits.h>
#endif
#ifdef HAVE_SYSFS_LIBSYSFS_H
# include <sysfs/libsysfs.h>
#endif
#include "drms.h"
#include "drmstables.h"
......@@ -128,13 +132,14 @@ static void Digest ( struct md5_s *, uint32_t * );
static void InitShuffle ( struct shuffle_s *, uint32_t * );
static void DoShuffle ( struct shuffle_s *, uint8_t *, uint32_t );
static int GetSystemKey ( uint32_t * );
static int GetSystemKey ( uint32_t *, vlc_bool_t );
static int WriteUserKey ( void *, uint32_t * );
static int ReadUserKey ( void *, uint32_t * );
static int GetUserKey ( void *, uint32_t * );
static int GetSCIData ( uint32_t **, uint32_t * );
static int GetSCIData ( char *, uint32_t **, uint32_t * );
static int HashSystemInfo ( uint32_t * );
static int GetiPodID ( long long * );
#ifdef WORDS_BIGENDIAN
/*****************************************************************************
......@@ -746,15 +751,17 @@ static void DoShuffle( struct shuffle_s *p_shuffle,
*****************************************************************************
* Compute the system key from various system information, see HashSystemInfo.
*****************************************************************************/
static int GetSystemKey( uint32_t *p_sys_key )
static int GetSystemKey( uint32_t *p_sys_key, vlc_bool_t b_ipod )
{
static char const p_secret1[ 8 ] = "YuaFlafu";
static char const p_secret2[ 8 ] = "zPif98ga";
struct md5_s md5;
long long i_ipod_id;
uint32_t p_system_hash[ 4 ];
/* Compute the MD5 hash of our system info */
if( HashSystemInfo( p_system_hash ) )
if( ( !b_ipod && HashSystemInfo( p_system_hash ) ) ||
( b_ipod && GetiPodID( &i_ipod_id ) ) )
{
return -1;
}
......@@ -763,10 +770,22 @@ static int GetSystemKey( uint32_t *p_sys_key )
* MD5 hash will be our system key. */
InitMD5( &md5 );
AddMD5( &md5, p_secret1, 8 );
AddMD5( &md5, (uint8_t *)p_system_hash, 6 );
AddMD5( &md5, (uint8_t *)p_system_hash, 6 );
AddMD5( &md5, (uint8_t *)p_system_hash, 6 );
AddMD5( &md5, p_secret2, 8 );
if( !b_ipod )
{
AddMD5( &md5, (uint8_t *)p_system_hash, 6 );
AddMD5( &md5, (uint8_t *)p_system_hash, 6 );
AddMD5( &md5, (uint8_t *)p_system_hash, 6 );
AddMD5( &md5, p_secret2, 8 );
}
else
{
i_ipod_id = U64_AT(&i_ipod_id);
AddMD5( &md5, (uint8_t *)&i_ipod_id, sizeof(i_ipod_id) );
AddMD5( &md5, (uint8_t *)&i_ipod_id, sizeof(i_ipod_id) );
AddMD5( &md5, (uint8_t *)&i_ipod_id, sizeof(i_ipod_id) );
}
EndMD5( &md5 );
memcpy( p_sys_key, md5.p_digest, 16 );
......@@ -867,6 +886,7 @@ static int GetUserKey( void *_p_drms, uint32_t *p_user_key )
uint32_t i_sci_size, i_blocks;
uint32_t *p_sci0, *p_sci1, *p_buffer;
uint32_t p_sci_key[ 4 ];
char *psz_ipod;
int i_ret = -1;
if( !ReadUserKey( p_drms, p_user_key ) )
......@@ -875,12 +895,14 @@ static int GetUserKey( void *_p_drms, uint32_t *p_user_key )
return 0;
}
if( GetSystemKey( p_sys_key ) )
psz_ipod = getenv( "IPOD" );
if( GetSystemKey( p_sys_key, psz_ipod ? VLC_TRUE : VLC_FALSE ) )
{
return -1;
}
if( GetSCIData( &p_sci_data, &i_sci_size ) )
if( GetSCIData( psz_ipod, &p_sci_data, &i_sci_size ) )
{
return -1;
}
......@@ -977,74 +999,84 @@ static int GetUserKey( void *_p_drms, uint32_t *p_user_key )
*****************************************************************************
* Read SCI data from "\Apple Computer\iTunes\SC Info\SC Info.sidb"
*****************************************************************************/
static int GetSCIData( uint32_t **pp_sci, uint32_t *pi_sci_size )
static int GetSCIData( char *psz_ipod, uint32_t **pp_sci,
uint32_t *pi_sci_size )
{
FILE *file;
char *psz_path = NULL;
char p_tmp[ PATH_MAX ];
int i_ret = -1;
if( psz_ipod == NULL )
{
#ifdef WIN32
HANDLE i_file;
DWORD i_size, i_read;
TCHAR p_path[ PATH_MAX ];
TCHAR *p_filename = _T("\\Apple Computer\\iTunes\\SC Info\\SC Info.sidb");
char *p_filename = "\\Apple Computer\\iTunes\\SC Info\\SC Info.sidb";
typedef HRESULT (WINAPI *SHGETFOLDERPATH)( HWND, int, HANDLE, DWORD,
LPSTR );
HINSTANCE shfolder_dll = NULL;
SHGETFOLDERPATH dSHGetFolderPath = NULL;
typedef HRESULT (WINAPI *SHGETFOLDERPATH)( HWND, int, HANDLE, DWORD,
LPTSTR );
if( ( shfolder_dll = LoadLibrary( _T("SHFolder.dll") ) ) != NULL )
{
dSHGetFolderPath =
(SHGETFOLDERPATH)GetProcAddress( shfolder_dll,
_T("SHGetFolderPathA") );
}
HINSTANCE shfolder_dll = NULL;
SHGETFOLDERPATH dSHGetFolderPath = NULL;
if( dSHGetFolderPath != NULL &&
SUCCEEDED( dSHGetFolderPath( NULL, CSIDL_COMMON_APPDATA,
NULL, 0, p_tmp ) ) )
{
strncat( p_tmp, p_filename, min( strlen( p_filename ),
(sizeof(p_tmp) - 1) - strlen( p_tmp ) ) );
psz_path = p_tmp;
}
if( ( shfolder_dll = LoadLibrary( _T("SHFolder.dll") ) ) != NULL )
{
dSHGetFolderPath =
(SHGETFOLDERPATH)GetProcAddress( shfolder_dll,
#ifdef _UNICODE
_T("SHGetFolderPathW") );
#else
_T("SHGetFolderPathA") );
if( shfolder_dll != NULL )
{
FreeLibrary( shfolder_dll );
}
#endif
}
else
{
char *p_filename = "/iPod_Control/iTunes/iSCInfo";
snprintf( p_tmp, sizeof(p_tmp) - 1, "%s%s",
psz_ipod, p_filename );
psz_path = p_tmp;
}
if( dSHGetFolderPath != NULL &&
SUCCEEDED( dSHGetFolderPath( NULL, CSIDL_COMMON_APPDATA,
NULL, 0, p_path ) ) )
if( psz_path == NULL )
{
_tcsncat( p_path, p_filename, min( _tcslen( p_filename ),
(PATH_MAX-1) - _tcslen( p_path ) ) );
return -1;
}
i_file = CreateFile( p_path, GENERIC_READ, 0, NULL,
OPEN_EXISTING, 0, NULL );
if( i_file != INVALID_HANDLE_VALUE )
file = fopen( psz_path, "r" );
if( file != NULL )
{
struct stat st;
if( !fstat( fileno( file ), &st ) )
{
i_size = GetFileSize( i_file, NULL );
if( i_size != INVALID_FILE_SIZE &&
i_size > (sizeof(uint32_t) * 22) )
*pp_sci = malloc( st.st_size );
if( *pp_sci != NULL )
{
*pp_sci = malloc( i_size );
if( *pp_sci != NULL )
if( fread( *pp_sci, 1, st.st_size,
file ) == (size_t)st.st_size )
{
if( ReadFile( i_file, *pp_sci, i_size, &i_read, NULL ) &&
i_read == i_size )
{
*pi_sci_size = i_size;
i_ret = 0;
}
else
{
free( (void *)*pp_sci );
*pp_sci = NULL;
}
*pi_sci_size = st.st_size;
i_ret = 0;
}
else
{
free( (void *)*pp_sci );
*pp_sci = NULL;
}
}
CloseHandle( i_file );
}
}
if( shfolder_dll != NULL )
{
FreeLibrary( shfolder_dll );
fclose( file );
}
#endif
return i_ret;
}
......@@ -1136,3 +1168,54 @@ static int HashSystemInfo( uint32_t *p_system_hash )
return i_ret;
}
/*****************************************************************************
* GetiPodID: Get iPod ID
*****************************************************************************
* This function gets the iPod ID.
*****************************************************************************/
static int GetiPodID( long long *p_ipod_id )
{
int i_ret = -1;
#ifdef HAVE_SYSFS_LIBSYSFS_H
struct sysfs_bus *bus = NULL;
struct dlist *devlist = NULL;
struct dlist *attributes = NULL;
struct sysfs_device *curdev = NULL;
struct sysfs_attribute *curattr = NULL;
bus = sysfs_open_bus( "ieee1394" );
if( bus != NULL )
{
devlist = sysfs_get_bus_devices( bus );
if( devlist != NULL )
{
dlist_for_each_data( devlist, curdev, struct sysfs_device )
{
attributes = sysfs_get_device_attributes( curdev );
if( attributes != NULL )
{
dlist_for_each_data( attributes, curattr,
struct sysfs_attribute )
{
if( ( strcmp( curattr->name, "model_name" ) == 0 ) &&
( strncmp( curattr->value, "iPod", 4 ) == 0 ) )
{
*p_ipod_id = strtoll( curdev->name, NULL, 16 );
i_ret = 0;
break;
}
}
}
if( !i_ret ) break;
}
}
sysfs_close_bus( bus );
}
#endif
return i_ret;
}
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