Adds dirent

src/vnode/dirent.rs

@@ -0,0 +1,11 @@
+use core::ffi::c_char;
+
+/// Represents `dirent` structure.
+#[repr(C)]
+pub struct DirEnt<const L: usize> {
+    pub id: u32,           // d_fileno
+    pub len: u16,          // d_reclen
+    pub ty: u8,            // d_type
+    pub name_len: u8,      // d_namlen
+    pub name: [c_char; L], // d_name
+}

src/vnode/mod.rs

@@ -1,7 +1,9 @@
+pub use self::dirent::*;
 pub use self::op::*;
 use crate::Kernel;
 use core::ffi::c_int;
 
+mod dirent;
 mod op;
 
 /// Represents `vnode` structure.