Feat: lab 4

kernel/include/initrd.h

@@ -0,0 +1,55 @@
+#pragma once
+
+#include <stddef.h>
+#include <dtb.h>
+#include <vector.h>
+
+typedef struct {
+  char c_magic[6];
+  char c_ino[8];
+  char c_mode[8];
+  char c_uid[8];
+  char c_gid[8];
+  char c_nlink[8];
+  char c_mtime[8];
+  char c_filesize[8];
+  char c_devmajor[8];
+  char c_devminor[8];
+  char c_rdevmajor[8];
+  char c_rdevminor[8];
+  char c_namesize[8];
+  char c_check[8];
+}__attribute__((packed)) cpio_newc_header_t;
+
+typedef struct file_node {
+  struct file_node *l, *r;
+  int rand;
+  int node_size;
+
+  int ino;
+  int mode;
+  int uid;
+  int gid;
+  int nlink;
+  int mtime;
+  int filesize;
+  int devmajor;
+  int devminor;
+  int rdevmajor;
+  int rdevminor;
+  int namesize;
+
+  char *filename;
+  uint8_t *filecontent;
+} file_node_t;
+
+typedef void (*initrd_callback_func_t)(file_node_t *);
+
+file_node_t *initrd_init(void);
+void initrd_fdt_callback(const vector_t *props);
+file_node_t *initrd_get(file_node_t *root, const char *filename);
+void initrd_traverse(file_node_t *tr, initrd_callback_func_t func);
+
+extern fdt_callback_t initrd_dtb_cb;
+extern void *initrd_start;
+extern void *initrd_end;