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598 bytes added ,  15:56, 28 September 2011
→‎Partitions: Added partial DISA structure definition
Line 64: Line 64:  
* If the uint32 @ 0x168 into the image in the DISA is a %1=1, then first table is is hashed, otherwise the second DIFI table is hashed.  
 
* If the uint32 @ 0x168 into the image in the DISA is a %1=1, then first table is is hashed, otherwise the second DIFI table is hashed.  
 
* If the table has more then 1 DIFI then the uint32 @ 0x168 is the offset from the DATA partition to the file base (masked with 0xFFFFFFFE).
 
* If the table has more then 1 DIFI then the uint32 @ 0x168 is the offset from the DATA partition to the file base (masked with 0xFFFFFFFE).
 +
 +
{| class="wikitable"
 +
|-
 +
! Start
 +
! Length
 +
! Description
 +
|-
 +
| 0x00
 +
| 4
 +
| Magic ("DISA")
 +
|-
 +
| 0x04
 +
| 4
 +
| Unknown
 +
|-
 +
| 0x08
 +
| 8
 +
| Unknown
 +
|-
 +
| 0x10
 +
| 8
 +
| Offset to first "DIFI" blob in DISA (usually 0x0200)
 +
|-
 +
| 0x18
 +
| 8
 +
| Offset to second "DIFI" blob in DISA (usually 0x0330)
 +
|-
 +
| 0x20
 +
| 8
 +
| Size of the first "DIFI" blob
 +
|-
 +
| 0x28
 +
| 8
 +
| Unknown (padding?)
 +
|-
 +
| 0x30
 +
| 8
 +
| Size of the second "DIFI" blob
 +
|-
 +
| 0x38
 +
| 8
 +
| Unknown (padding?)
 +
|-
 +
| 0x40
 +
| 4*10
 +
| Unknown
 +
|-
 +
| 0x68
 +
| 4
 +
| Active table (and the offset to the filebase)
 +
|-
 +
| 0x6C
 +
| 0x20
 +
| Hashes
 +
|-
 +
| 0x8C
 +
| 4*29
 +
| Unknown
 +
|}
 +
    
<pre>
 
<pre>
Line 92: Line 152:  
Actually DIFI blobs are 0x12C large because the last 4 are not used and appear 0xFFFFFFFF at the encrypted image.
 
Actually DIFI blobs are 0x12C large because the last 4 are not used and appear 0xFFFFFFFF at the encrypted image.
   −
For most games there's only 1 partition (The SAVE partition) and some (like Ashpalt 3D and Steel Diver) has 2 partitions.
+
For most games there's only 1 partition (The SAVE partition) and some (like Asphalt 3D and Steel Diver) has 2 partitions.
    
* 2 Partitions means that the files inside the SAVE partition is on the other partition (we would call it DATA partition).
 
* 2 Partitions means that the files inside the SAVE partition is on the other partition (we would call it DATA partition).
   −
* No more than 2 paritions have been seen yet.
+
* No more than 2 partitions have been seen yet.
    
{| class="wikitable"
 
{| class="wikitable"
Line 106: Line 166:  
| 0x00
 
| 0x00
 
| 4
 
| 4
| Magic "DIFI"
+
| Magic ("DIFI")
 
|-
 
|-
 
| 0x04
 
| 0x04
Line 130: Line 190:  
| 0x28
 
| 0x28
 
| 8
 
| 8
| Offset to the hashes blob in DIFI (usually 0x010C)
+
| Offset to the hashes in DIFI (usually 0x010C)
 
|-
 
|-
 
| 0x30
 
| 0x30
 
| 8
 
| 8
| Size of this hashes blob
+
| Size of this hashes
 
|-
 
|-
 
| 0x38
 
| 0x38
| 0xC
+
| 8
 +
| Unknown
 +
|-
 +
| 0x40
 +
| 4
 
| Unknown (0x00 filled)
 
| Unknown (0x00 filled)
 
|}
 
|}
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