1 files changed, 46 insertions, 0 deletions
diff --git a/mirai.old/common/constants/fs.zig b/mirai.old/common/constants/fs.zig
new file mode 100644
index 0000000..7c68e45
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+++ b/mirai.old/common/constants/fs.zig
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+//! Filesystem constants
+
+// Sector and cluster
+pub const SECTOR_SIZE: usize = 512;
+pub const SECTOR_ALIGN: u8 = 16;
+
+// AFS signatures
+pub const AFS_SIGNATURE = "AKIBAFS!";
+pub const AFS_BOOT_SIG: u16 = 0xAA55;
+
+// AFS entry types
+pub const ENTRY_TYPE_END: u8 = 0x00;
+pub const ENTRY_TYPE_UNIT: u8 = 0x01;
+pub const ENTRY_TYPE_STACK: u8 = 0x02;
+
+// AFS permissions
+pub const PERM_OWNER: u8 = 1;
+pub const PERM_WORLD: u8 = 2;
+pub const PERM_READ_ONLY: u8 = 3;
+
+// AFS cluster markers
+pub const CLUSTER_FREE: u32 = 0x00000000;
+pub const CLUSTER_END: u32 = 0xFFFFFFFF;
+pub const CLUSTER_MIN: u32 = 2;
+
+// AFS limits
+pub const MAX_IDENTITY_LEN: usize = 255;
+pub const MAX_OWNER_NAME_LEN: usize = 64;
+pub const MAX_LOCATION_LENGTH: usize = 256;
+pub const PARENT_CACHE_SIZE: usize = 256;
+
+// GPT
+pub const GPT_SIGNATURE = "EFI PART";
+pub const GPT_HEADER_SECTOR: u64 = 1;
+pub const GPT_PARTITION_ENTRIES_MAX: usize = 4;
+pub const GPT_ENTRY_SIZE: usize = 128;
+pub const GPT_HEADER_PARTITION_LBA_OFFSET: usize = 72;
+pub const GPT_ENTRY_TYPE_GUID_SIZE: usize = 16;
+pub const GPT_ENTRY_START_LBA_OFFSET: usize = 32;
+pub const GPT_ENTRY_END_LBA_OFFSET: usize = 40;
+
+// AFS partition GUID
+pub const AFS_PARTITION_GUID = [_]u8{
+    0xA1, 0xB2, 0xC3, 0xD4, 0xE5, 0xF6, 0x07, 0x18,
+    0x29, 0x3A, 0x4B, 0x5C, 0x6D, 0x7E, 0x8F, 0x90,
+};