LIC.DAT

Description

• Paths
  • dev_bdvd/PS3_GAME/LICDIR/LIC.DAT
  • dev_bdvd/PS3_GM01/LICDIR/LIC.DAT
  • dev_bdvd/PS3_GM02/LICDIR/LIC.DAT
  • etc...

Checked within Level 2 Kernel and possible via lv2syscall476
.

File size is always 0x10000 Bytes.

See also Discussion 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.

• CRC32 validation
  • LIC.DAT is readed from disc, and copyed to a different location excluding the padding at the end of the file (cropped from first byte of file up to lic_table_end offset)
  • The crc32 value stored at offset 0x20 is replaced by zeroes
  • Now is calculated the crc32 of the edited file
  • The crc32 calculated in previous step is validated against the crc32 value stored at offset 0x20 of the original LIC.DAT

• CRC32 generation
  • A temporal file is created composed by: header + license table. The crc32 value stored at offset 0x20 is filled with zeroes and works as a placeholder
  • Now is calculated the crc32 of the temporal file
  • The crc32 calculated in previous step is stored at offset 0x20 replacing the zeroes placeholder
  • A padding is added after the lic_table_end offset to increase the final size of LIC.DAT up to 0x10000

Header

Offset	Length	Example	Name	Description
0x0	0x8	'PS3LICDA'	magic	LIC.DAT identifyer
0x8	0x4	0x00000001	version	DAT structure version
0xC	0x4	0x80000000	flag	0x80000000 = retail (used in LIC.DAT under directory PS3_GAME) 0x00000000 = debug (used in LIC.DAT under directory PS3_GM01, PS3_GM02, etc...)
0x10	0x4	0x00000900	lic_table_end	License table, absolute end offset. Calculated by: license table start + (license amounts * license size)
0x14	0x4	0x00000800	lic_table_start	License table, absolute start offset. Always found 0x800 (static)
0x18	0x4	0x00000100	lic_size	License size. Always found 0x100 (static)
0x1C	0x4	0x00000001	lic_num	License amount. Values found: 0x1 (single boot discs), 0x2 (dual boot discs), 0x3 (triple boot discs)
0x20	0x4	0x8CD3A9D8	crc32	CRC32 from the first byte of LIC.DAT till the end of license table (includes the CRC32 placeholder filled with zeroes)
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.

License entry

Relative Offset	Length	Example	Name	Description
0x0	0x1	0x1	id_type	0x01 = Title ID 0x02 = SKU ID 0x03 = Content ID
0x1	0x0A (if id_type = 0x01) 0x2A (if id_type = 0x02) 0x25 (if id_type = 0x03)	'BLES01623'	id	Bootable content identifyer (EBOOT.BIN related)
0x0B (if id_type = 0x01) 0x2B (if id_type = 0x02) 0x26 (if id_type = 0x03)	up to lic_size	0x0000....	padding	padding to fill the entry with zeroes up to the "license size" specifyed in the header

Explanation: The first byte indicates type and size of following text:

• 0x01 means 0xA bytes, a regular TitleID (ex. BLES01623) with \0 terminating
• 0x02 means 0x2A bytes, a regular SKU ID (ex. UP0002-BLES01623_00-0000111122223333-E001) with \0 terminating
• 0x03 means 0x25 bytes, a regular npdrm ContentID (ex. UP0002-BLES01623_00-0000111122223333) with \0 terminating

Padding

Padding added at bottom of LIC.DAT file is to make the total size a multiplier of bluray disc sectors, and to protect the laser lens because otherway it is too tiny and so 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.