Editing LIC.DAT
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Latest revision | Your text | ||
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=Description= | |||
*Paths | *Paths | ||
**dev_bdvd/'''PS3_GAME'''/LICDIR/'''LIC.DAT''' | **dev_bdvd/'''PS3_GAME'''/LICDIR/'''LIC.DAT''' | ||
Line 8: | Line 6: | ||
**etc... | **etc... | ||
Checked within Level 2 Kernel and possible via lv2syscall476<br> | |||
== | Final File size is: 0x10000 Bytes | ||
See also {{talk}} page | |||
=Example= | |||
00000000 50 53 33 4C 49 43 44 41 00 00 00 01 80 00 00 00 PS3LICDA........ | |||
00000010 00 00 09 00 00 00 08 00 00 00 01 00 00 00 00 01 ................ | |||
00000020 8C D3 A9 D8 00 00 00 00 00 00 00 00 00 00 00 00 ................ | |||
... | |||
00000800 01 42 4C 45 53 30 31 36 32 33 00 00 00 00 00 00 .BLES01623...... | |||
... | |||
=Structure= | |||
The structure is dependant of how the file is generated in PC and processed by the PS3 | |||
Generation - The file is created in 2 steps, the file generated in first step contains the header (with a crc32 filled with zeroes intended as a placeholder) and the licenses table, in second step is calculated the crc32 of the file and is added in the header, and filled with zeroes at the end up to 0x10000 | |||
Processing - PS3 first reads the file LIC.DAT (header + licenses table, not included the padding at end), then it makes a copy of it (because is needed to edit it)... then it reads the crc32 area from the header and stores it separatedlly, then it fills the crc32 area with zeroes... and finally... it calculates the crc32 of the edited file | |||
The CRC32 hash stored in the final LIC.DAT file.... is the hash of the file generated in step 1 (with the crc32 area on the header filled with zeroes) and a total size smaller than 0x10000 (because doesnt have the padding added at the end of step 2) <!-- yes, thats weird --> | |||
==Header== | |||
{|class="wikitable" | {|class="wikitable" | ||
|- | |||
! Offset !! Length !! Example !! Name !! Description | ! Offset !! Length !! Example !! Name !! Description | ||
|- | |- | ||
| 0x0 || 0x8 || 'PS3LICDA' || | | 0x0 || 0x8 || 'PS3LICDA' || Magic || LIC.DAT identifyer | ||
|- | |- | ||
| 0x8 || 0x4 || | | 0x8 || 0x4 || 0x1 || Version || DAT structure version | ||
|- | |- | ||
| 0xC || 0x4 || 0x80000000 || | | 0xC || 0x4 || 0x80000000 || Disc type ? || 0x80000000 = retail (used in LIC.DAT under directory PS3_GAME)<br>0x00000000 = debug<!--master disc?--> (used in LIC.DAT under directory PS3_GM01, PS3_GM02, etc...) | ||
|- | |- | ||
| 0x10 || 0x4 || 0x00000900 | | 0x10 || 0x4 || 0x00000900 || License table, absolute end offset || Calculated by: ''license table start + (license amounts * license size)'' | ||
|- | |- | ||
| 0x14 || 0x4 || 0x00000800 | | 0x14 || 0x4 || 0x00000800 || License table, absolute start offset || Always found 0x800 (static) | ||
|- | |- | ||
| 0x18 || 0x4 || 0x00000100 || | | 0x18 || 0x4 || 0x00000100 || License size || Always found 0x100 (static) | ||
|- | |- | ||
| 0x1C || 0x4 || 0x00000001 || | | 0x1C || 0x4 || 0x00000001 || License amount || Values found: 0x1 (single boot discs), 0x2 (dual boot discs), 0x3 (triple boot discs) | ||
|- | |- | ||
| 0x20 || 0x4 || | | 0x20 || 0x4 || 0xD8A9D38C || crc32 || CRC32 from the first byte of LIC.DAT till the end of license table (includes the CRC32 placeholder filled with zeroes) | ||
|- | |- | ||
| 0x24 || ? || 0x0000... || | | 0x24 || ? || 0x0000... || padding || is unknown where the header ends, probablly aligned to 0x200 but there are much more zeroes after it | ||
|} | |} | ||
==License table== | |||
Composed by one or more license entries | Composed by one or more license entries | ||
===License entry=== | |||
{|class="wikitable" | {|class="wikitable" | ||
|- | |- | ||
! Relative Offset !! Length !! Example !! Name !! Description | ! Relative Offset !! Length !! Example !! Name !! Description | ||
|- | |- | ||
| 0x0 || 0x1 || 0x1 || | | 0x0 || 0x1 || 0x1 || ID type || 0x01 = [[Productcode|Title ID]]<br>0x02 = [[SKU ID]]<br>0x03 = [[Content ID]] | ||
|- | |- | ||
| 0x1 || | | 0x1 || ''varies'' || BLES01623 || ID || Bootable content identifyer (EBOOT.BIN related) | ||
|- | |- | ||
| | | ''varies'' || ''varies'' || 0x0000.... || padding || padding to fill the entry with zeroes up to the "license size" specifyed in the header | ||
|} | |} | ||
The first byte indicates type and size of following text: | The first byte indicates type and size of following text: | ||
* 0x01 means 0xA bytes, a regular TitleID (ex. BLES01623) with \0 terminating | * 0x01 means 0xA bytes, a regular TitleID (ex. BLES01623) with \0 terminating | ||
Line 90: | Line 76: | ||
* 0x03 means 0x25 bytes, a regular npdrm ContentID (ex. UP0002-BLES01623_00-0000111122223333) with \0 terminating | * 0x03 means 0x25 bytes, a regular npdrm ContentID (ex. UP0002-BLES01623_00-0000111122223333) with \0 terminating | ||
==Padding== | |||
Padding addded at bottom of LIC.DAT file, to make the total size a multiplyer of bluray disc sectors, and to protect the laser lens because otherway is too tiny and stressing for the laser | |||
This padding is added in the last step when the file is generated in PC, and removed in the first step before the crc32 hash is validated by the PS3 | |||
{{File Formats}} | {{File Formats}} | ||
<noinclude>[[Category:Main]]</noinclude> | <noinclude>[[Category:Main]]</noinclude> |