1 files changed, 122 insertions, 0 deletions
diff --git a/tools/libmkfs/openhefs.hpp b/tools/libmkfs/openhefs.hpp
new file mode 100644
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+++ b/tools/libmkfs/openhefs.hpp
@@ -0,0 +1,122 @@
+// Copyright 2024-2026, Amlal El Mahrouss (amlal@nekernel.org)
+// Licensed under the Apache License, Version 2.0 (see LICENSE file)
+// Official repository: https://github.com/nekernel-org/nekernel
+
+#ifndef LIBMKFS_OPENHEFS_H
+#define LIBMKFS_OPENHEFS_H
+
+#ifndef __GNUC__
+#error !! libmkfs isn't working in MSVC yet !!
+#endif
+
+#include <cstdint>
+#include <cstring>
+
+#define kOpenHeFSVersion (0x0101)
+#define kOpenHeFSMagic "OpenHeFS"
+#define kOpenHeFSMagicLen (9U)
+
+#define kOpenHeFSFileNameLen (256U)
+#define kOpenHeFSPartNameLen (128U)
+
+#define kOpenHeFSDefaultVolumeName u8"OpenHeFS Volume"
+
+namespace mkfs::hefs {
+
+// Drive kinds
+enum {
+  kOpenHeFSHardDrive         = 0xC0,  // Hard Drive
+  kOpenHeFSSolidStateDrive   = 0xC1,  // Solid State Drive
+  kOpenHeFSOpticalDrive      = 0x0C,  // Blu-Ray/DVD
+  kOpenHeFSMassStorageDevice = 0xCC,  // USB
+  kOpenHeFSScsiDrive         = 0xC4,  // SCSI Hard Drive
+  kOpenHeFSFlashDrive        = 0xC6,
+  kOpenHeFSUnknown           = 0xFF,  // Unknown device.
+  kOpenHeFSDriveCount        = 8,
+};
+
+// Disk status
+enum {
+  kOpenHeFSStatusUnlocked = 0x18,
+  kOpenHeFSStatusLocked,
+  kOpenHeFSStatusError,
+  kOpenHeFSStatusInvalid,
+  kOpenHeFSStatusCount,
+};
+
+// Encodings
+enum {
+  kOpenHeFSEncodingFlagsUTF8 = 0x50,
+  kOpenHeFSEncodingFlagsUTF16,
+  kOpenHeFSEncodingFlagsUTF32,
+  kOpenHeFSEncodingFlagsUTF16BE,
+  kOpenHeFSEncodingFlagsUTF16LE,
+  kOpenHeFSEncodingFlagsUTF32BE,
+  kOpenHeFSEncodingFlagsUTF32LE,
+  kOpenHeFSEncodingFlagsUTF8BE,
+  kOpenHeFSEncodingFlagsUTF8LE,
+  kOpenHeFSEncodingFlagsBinary,
+  kOpenHeFSEncodingFlagsCount = 11,
+  kOpenHeFSFlagsNone          = 0,
+  kOpenHeFSFlagsReadOnly      = 0x100,
+  kOpenHeFSFlagsHidden,
+  kOpenHeFSFlagsSystem,
+  kOpenHeFSFlagsArchive,
+  kOpenHeFSFlagsDevice,
+  kOpenHeFSFlagsCount = 7
+};
+
+// Time type
+using ATime = std::uint64_t;
+
+// File kinds
+inline constexpr uint16_t kOpenHeFSFileKindRegular      = 0x00;
+inline constexpr uint16_t kOpenHeFSFileKindDirectory    = 0x01;
+inline constexpr uint16_t kOpenHeFSFileKindBlock        = 0x02;
+inline constexpr uint16_t kOpenHeFSFileKindCharacter    = 0x03;
+inline constexpr uint16_t kOpenHeFSFileKindFIFO         = 0x04;
+inline constexpr uint16_t kOpenHeFSFileKindSocket       = 0x05;
+inline constexpr uint16_t kOpenHeFSFileKindSymbolicLink = 0x06;
+inline constexpr uint16_t kOpenHeFSFileKindUnknown      = 0x07;
+inline constexpr uint16_t kOpenHeFSFileKindCount        = 0x08;
+
+// Red-black tree colors
+enum {
+  kOpenHeFSInvalidColor = 0,
+  kOpenHeFSRed          = 100,
+  kOpenHeFSBlack,
+  kOpenHeFSColorCount,
+};
+
+// Time constants
+inline constexpr ATime kOpenHeFSTimeInvalid = 0x0000000000000000;
+inline constexpr ATime kOpenHeFSTimeMax     = 0xFFFFFFFFFFFFFFFF - 1;
+
+// Boot Node
+struct __attribute__((packed)) BootNode {
+  char          magic[kOpenHeFSMagicLen]{};
+  char8_t       volumeName[kOpenHeFSPartNameLen]{};
+  std::uint32_t version{};
+  std::uint64_t badSectors{};
+  std::uint64_t sectorCount{};
+  std::uint64_t sectorSize{};
+  std::uint32_t checksum{};
+  std::uint8_t  diskKind{};
+  std::uint8_t  encoding{};
+  std::uint64_t startIND{};
+  std::uint64_t endIND{};
+  std::uint64_t indCount{};
+  std::uint64_t diskSize{};
+  std::uint16_t diskStatus{};
+  std::uint16_t diskFlags{};
+  std::uint16_t vid{};
+  std::uint64_t startIN{};
+  std::uint64_t endIN{};
+  std::uint64_t startBlock{};
+  std::uint64_t endBlock{};
+  char          pad[272]{};
+};
+
+}  // namespace mkfs::hefs
+
+#endif