1 files changed, 90 insertions, 0 deletions
diff --git a/src/kernel/NetworkKit/IPC.h b/src/kernel/NetworkKit/IPC.h
new file mode 100644
index 00000000..c08a9457
--- /dev/null
+++ b/src/kernel/NetworkKit/IPC.h
@@ -0,0 +1,90 @@
+/* ========================================
+
+  Copyright (C) 2024-2025, Amlal El Mahrouss, licensed under the Apache 2.0 license..
+
+  File: IPC.h.
+  Purpose: IPC protocol.
+
+======================================== */
+
+#ifndef INC_IPC_H
+#define INC_IPC_H
+
+#include <NeKit/Defines.h>
+#include <NeKit/KString.h>
+#include <hint/CompilerHint.h>
+
+/// @file IPC.h
+/// @brief IPC comm. protocol.
+
+/// IA separator.
+#define kIPCRemoteSeparator ":"
+
+/// Interchange address, consists of ProcessID:TEAM.
+#define kIPCRemoteInvalid "00:00"
+
+#define kIPCHeaderMagic (0x4950434)
+
+namespace Kernel {
+struct IPC_ADDR;
+struct IPC_MSG;
+
+/// @brief 128-bit IPC address.
+struct PACKED IPC_ADDR final {
+  UInt64 UserProcessID;
+  UInt64 UserProcessTeam;
+
+  ////////////////////////////////////
+  // some operators.
+  ////////////////////////////////////
+
+  BOOL operator==(const IPC_ADDR& addr) noexcept;
+  BOOL operator==(IPC_ADDR& addr) noexcept;
+  BOOL operator!=(const IPC_ADDR& addr) noexcept;
+  BOOL operator!=(IPC_ADDR& addr) noexcept;
+};
+
+typedef struct IPC_ADDR IPC_ADDR;
+
+enum {
+  kIPCLittleEndian = 0,
+  kIPCBigEndian    = 1,
+  kIPCMixedEndian  = 2,
+};
+
+constexpr inline auto kIPCMsgSize = 6094U;
+
+enum {
+  kIPCLockInvalid = 0,
+  kIPCLockFree    = 1,
+  kIPCLockUsed    = 2,
+};
+
+/// @brief IPC connection header, message cannot be greater than 6K.
+typedef struct IPC_MSG final {
+  UInt32   IpcHeaderMagic;  // cRemoteHeaderMagic
+  UInt8    IpcEndianess;    // 0 : LE, 1 : BE
+  SizeT    IpcPacketSize;
+  IPC_ADDR IpcFrom;
+  IPC_ADDR IpcTo;
+  UInt32   IpcCRC32;
+  UInt32   IpcMsg;
+  UInt32   IpcMsgSz;
+  UInt8    IpcData[kIPCMsgSize];
+  UInt32   IpcLock;
+  /// @brief Passes the message to target, could be anything, HTTP packet, JSON or whatever.
+  static Bool Pass(IPC_MSG* self, IPC_MSG* target) noexcept;
+} PACKED ALIGN(8) IPC_MSG;
+
+/// @brief Sanitize packet function
+/// @retval true packet is correct.
+/// @retval false packet is incorrect and process has crashed.
+BOOL ipc_sanitize_packet(_Input IPC_MSG* pckt_in);
+
+/// @brief Construct packet function
+/// @retval true packet is correct.
+/// @retval false packet is incorrect and process has crashed.
+BOOL ipc_construct_packet(_Output _Input IPC_MSG** pckt_in);
+}  // namespace Kernel
+
+#endif  // INC_IPC_H