SELF File Format
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ORBIS SELFs from PS4 have a somewhat different structure from the ones we see on vita and ps3. The structure is documented as follows:
SELF Header Structure
| Offset | Size | Description | Notes |
|---|---|---|---|
| 0 | 4 | Magic | 4F 15 3D 1D |
| 0x4 | 4 | Unknown | Always 00 01 01 12 |
| 0x8 | 1 | Unknown | Always 1 |
| 0x9 | 1 | Key Type | 0xC SK, 0xF SL, 0xE SM, 0x8 EBOOT and ELF and SELF, 0x9 SPRX and SDLL and SEXE |
| 0xA | 2 | Padding | |
| 0xC | 2 | MetaData Offset | |
| 0xE | 2 | MetaData Size | |
| 0x10 | 4 | Size of SELF | |
| 0x14 | 4 | Padding | |
| 0x18 | 2 | Unknown | 1 SK, 2 SL and Modules, 4 SK Elfs, 6 .selfs, 2 .sdll, 6 .sprx, 6 ShellCore, 6 eboot.bin, 2 sexe |
| 0x1A | 2 | Unknown | Always 0x22 |
| 0x1C | 4 | Padding |
Self Segment Structure
At 0x20 the following structure follows
typedef struct
{
unsigned long long unknown;
unsigned long long offset;
unsigned long long encrypted_compressed_size
unsigned long long decrypted_decompressed_size ;
} SEGMENT_TABLE;