A tool for deriving PKG packet encryption keys for ps4 written in c++
| 1 | /* |
| 2 | * ╔═══════════════════════════════════════════════════════════════════════════╗ |
| 3 | * ║ PS4 TLS (Thread Local Storage) ║ |
| 4 | * ╠═══════════════════════════════════════════════════════════════════════════╣ |
| 5 | * ║ Emulates PS4's Thread Control Block for cross-platform compatibility. ║ |
| 6 | * ║ Based on shadPS4 implementation patterns. ║ |
| 7 | * ╚═══════════════════════════════════════════════════════════════════════════╝ |
| 8 | */ |
| 9 | |
| 10 | #pragma once |
| 11 | |
| 12 | #include <cstdint> |
| 13 | |
| 14 | namespace PS4Emu { |
| 15 | |
| 16 | /* |
| 17 | * ┌─────────────────────────────────────────────────────────────────┐ |
| 18 | * │ THREAD CONTROL BLOCK (TCB) │ |
| 19 | * │ │ |
| 20 | * │ PS4 Layout (simplified): │ |
| 21 | * │ ┌──────────┬──────────┬──────────┬──────────┐ │ |
| 22 | * │ │ self ptr │ dtv ptr │ reserved │ errno │ │ |
| 23 | * │ └──────────┴──────────┴──────────┴──────────┘ │ |
| 24 | * └─────────────────────────────────────────────────────────────────┘ |
| 25 | */ |
| 26 | struct Tcb { |
| 27 | Tcb *tcb_self; // Pointer to self (for FS/GS base access) |
| 28 | void *tcb_dtv; // Dynamic Thread Vector for TLS |
| 29 | void *tcb_thread; // Current thread pointer |
| 30 | int32_t tcb_errno; // Thread-local errno |
| 31 | uint64_t tcb_reserved[4]; // Reserved space |
| 32 | |
| 33 | // Padding to match PS4's TCB size |
| 34 | uint8_t padding[256 - 56]; |
| 35 | }; |
| 36 | |
| 37 | /* |
| 38 | * ┌─────────────────────────────────────────────────────────────────┐ |
| 39 | * │ PUBLIC API │ |
| 40 | * └─────────────────────────────────────────────────────────────────┘ |
| 41 | */ |
| 42 | |
| 43 | // Initialize TLS subsystem (call once at startup) |
| 44 | bool InitializeTLS(); |
| 45 | |
| 46 | // Shutdown TLS subsystem |
| 47 | void ShutdownTLS(); |
| 48 | |
| 49 | // Set the current thread's TCB base pointer |
| 50 | void SetTcbBase(Tcb *tcb); |
| 51 | |
| 52 | // Get the current thread's TCB base pointer |
| 53 | Tcb *GetTcbBase(); |
| 54 | |
| 55 | // Create a new TCB for a thread |
| 56 | Tcb *CreateTcb(); |
| 57 | |
| 58 | // Destroy a TCB |
| 59 | void DestroyTcb(Tcb *tcb); |
| 60 | |
| 61 | // Get thread-local errno (for PS4 syscall emulation) |
| 62 | int32_t *GetErrno(); |
| 63 | |
| 64 | } // namespace PS4Emu |
| 65 |