Started vfs

1 files changed, 63 insertions, 0 deletions

diff --git a/src/kernel/fs/vfs.h b/src/kernel/fs/vfs.h
new file mode 100644
index 0000000..fe897cc
--- /dev/null
+++ b/src/kernel/fs/vfs.h
@@ -0,0 +1,63 @@
+#ifndef MELVIX_VFS_H
+#define MELVIX_VFS_H
+
+#include <stdint.h>
+
+#define MAX_NAME_LENGTH 128
+
+enum node_type {
+	FILE_NODE = 1,
+	DIR_NODE,
+	CHAR_DEV_NODE,
+	BLOCK_DEV_NODE,
+	PIPE_NODE,
+	SYMLINK_NODE,
+	MOUNTPOINT_NODE = 8
+};
+
+struct fs_node;
+struct dirent;
+
+typedef uint32_t (*read)(struct fs_node *, uint32_t, uint32_t, char *);
+typedef uint32_t (*write)(struct fs_node *, uint32_t, uint32_t, char *);
+typedef void (*open)(struct fs_node *);
+typedef void (*close)(struct fs_node *);
+typedef struct dirent *(*read_dir)(struct fs_node *, uint32_t);
+typedef struct fs_node *(*find_dir)(struct fs_node *, char *);
+
+struct fs_node {
+	char name[MAX_NAME_LENGTH];
+	uint32_t length;
+	uint32_t inode;
+	uint32_t permissions;
+	uint32_t uid;
+	uint32_t gid;
+	enum node_type type;
+
+	struct fs_node *node_ptr;
+
+	void *impl;
+
+	read read;
+	write write;
+	open open;
+	close close;
+	read_dir read_dir;
+	find_dir find_dir;
+};
+
+struct dirent {
+	char name[MAX_NAME_LENGTH];
+	uint32_t inode;
+};
+
+extern struct fs_node *fs_root;
+
+uint32_t fs_read(struct fs_node *node, uint32_t offset, uint32_t size, char *buf);
+uint32_t fs_write(struct fs_node *node, uint32_t offset, uint32_t size, char *buf);
+void fs_open(struct fs_node *node);
+void fs_close(struct fs_node *node);
+struct dirent *fs_read_directory(struct fs_node *node, uint32_t index);
+struct fs_node *fs_find_directory(struct fs_node *node, char *name);
+
+#endif
\ No newline at end of file