Add functions to read and write the AUPD (flash update) image. "--read-aupd aupd.bin" will read (and decrypt) the AUPD image, and "--write-aupd aupd.bin" will write (and encrypt) an image. Also fix a bug in the "diskmove" function which corrupted the AUPD image when a bootloader was installed. So in order to manipulate the aupd image, you need to restore a clean firmware partition, and install the bootloader with this version of ipodpatcher. Decryption functions based on the description and sample code at http://ipodlinux.org/Flash_Decryption

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14644 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 47 insertions, 0 deletions

diff --git a/rbutil/ipodpatcher/arc4.h b/rbutil/ipodpatcher/arc4.h
new file mode 100644
index 0000000000..8bff0e2dc1
--- /dev/null
+++ b/rbutil/ipodpatcher/arc4.h
@@ -0,0 +1,47 @@
+/*
+   arc4.h - based on matrixssl-1-8-3-open
+
+*/
+
+/*
+ *  Copyright (c) PeerSec Networks, 2002-2007. All Rights Reserved.
+ *  The latest version of this code is available at http://www.matrixssl.org
+ *
+ *  This software is open source; 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 General Public License does NOT permit incorporating this software 
+ *  into proprietary programs.  If you are unable to comply with the GPL, a 
+ *  commercial license for this software may be purchased from PeerSec Networks
+ *  at http://www.peersec.com
+ *  
+ *  This program is distributed in 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  02111-1307  USA
+ *  http://www.gnu.org/copyleft/gpl.html
+ */
+/*****************************************************************************/
+
+#ifndef _ARC4_H
+
+#include <stdint.h>
+
+struct rc4_key_t
+{
+    unsigned char   state[256];
+    uint32_t  byteCount;
+    unsigned char   x;
+    unsigned char   y;
+};
+
+void matrixArc4Init(struct rc4_key_t *ctx, unsigned char *key, int32_t keylen);
+int32_t matrixArc4(struct rc4_key_t *ctx, unsigned char *in,
+                   unsigned char *out, int32_t len);
+
+#endif