Androids källkod - Recovery.c

Hej

Satt och sökte i androids källkod efter krypteringsmöjligheter och hittade följande i
android/source/bootable/recovery/recovery.c:

Kod:

 * SECURE FILE SYSTEMS ENABLE/DISABLE
 * 1. user selects "enable encrypted file systems"
 * 2. main system writes "--set_encrypted_filesystems=on|off" to
 *    /cache/recovery/command
 * 3. main system reboots into recovery
 * 4. get_args() writes BCB with "boot-recovery" and
 *    "--set_encrypted_filesystems=on|off"
 *    -- after this, rebooting will restart the transition --
 * 5. read_encrypted_fs_info() retrieves encrypted file systems settings from /data
 *    Settings include: property to specify the Encrypted FS istatus and
 *    FS encryption key if enabled (not yet implemented)
 * 6. erase_volume() reformats /data
 * 7. erase_volume() reformats /cache
 * 8. restore_encrypted_fs_info() writes required encrypted file systems settings to /data
 *    Settings include: property to specify the Encrypted FS status and
 *    FS encryption key if enabled (not yet implemented)
 * 9. finish_recovery() erases BCB
 *    -- after this, rebooting will restart the main system --
 * 10. main() calls reboot() to boot main system
 */

Vad innebär den funktionen? Någon som har testat?
Kan jag alltså kompilera så att android 2.3.4 blir krypterat?

I android >3.0 kan man ju kryptera hela filsystemet.



//mille