* 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>
# include <limits.h>
#endif
+#ifdef HAVE_SYSFS_LIBSYSFS_H
+# include <sysfs/libsysfs.h>
+#endif
+
#include "drms.h"
#include "drmstables.h"
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
/*****************************************************************************
*****************************************************************************
* 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;
}
* 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 );
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 ) )
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;
}
*****************************************************************************
* 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;
}
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;
+}
+
projects / vlc / commitdiff