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-rw-r--r--src/sys/include/os/vnode.h52
1 files changed, 52 insertions, 0 deletions
diff --git a/src/sys/include/os/vnode.h b/src/sys/include/os/vnode.h
index 1bef1e2..9d8a3e6 100644
--- a/src/sys/include/os/vnode.h
+++ b/src/sys/include/os/vnode.h
@@ -32,6 +32,7 @@
#include <sys/types.h>
#include <sys/atomic.h>
+#include <sys/namei.h>
/* Forward declarations */
struct vnode;
@@ -43,12 +44,16 @@ struct vop;
* @VTYPE_NONE: Vnode is yet to be assigned a type
* @VTYPE_FILE: Vnode references a file
* @VTYPE_DIR: Vnode references a directory
+ * @VTYPE_SOCK: Vnode references a socket
+ * @VTYPE_CDEV: Vnode references a character device
* @__N_VTYPE: Number of valid nodes on the system
*/
typedef enum {
VTYPE_NONE,
VTYPE_FILE,
VTYPE_DIR,
+ VTYPE_SOCK,
+ VTYPE_CDEV,
__N_VTYPE
} vtype_t;
@@ -83,12 +88,35 @@ struct vop_rw_data {
};
/*
+ * Arguments to create an entry within a
+ * filesystem
+ *
+ * @ndp: Path component to create
+ * @vtype: Vnode type
+ */
+struct vop_create_args {
+ struct nameidata *ndp;
+ vtype_t vtype;
+};
+
+/*
+ * Represents attributes of a vnode
+ *
+ * @size: File size in bytes
+ */
+struct vattr {
+ size_t size;
+};
+
+/*
* Represents operations that can be performed on
* a specific vnode. These are implemented as callbacks
*/
struct vop {
+ int(*getattr)(struct vnode *vp, struct vattr *res);
int(*lookup)(struct vop_lookup_args *args);
int(*reclaim)(struct vnode *vp, int flags);
+ int(*create)(struct vop_create_args *args);
ssize_t(*write)(struct vop_rw_data *data);
ssize_t(*read)(struct vop_rw_data *data);
};
@@ -176,4 +204,28 @@ ssize_t vop_read(struct vnode *vp, char *data, off_t off, size_t len);
*/
int vop_reclaim(struct vnode *vp, int flags);
+/*
+ * Create a node within a specific filesystem or
+ * directory
+ *
+ * @vp: Vnode of parent directory
+ * @ndp: Namei descriptor of path component
+ * @type: Vnode type to create with
+ *
+ * Returns zero on success, otherwise a less than zero
+ * value on failure.
+ */
+int vop_create(struct vnode *vp, struct nameidata *ndp, vtype_t type);
+
+/*
+ * Get the attributes of a file
+ *
+ * @vp: Vnode of file to get attributes of
+ * @res: Result of file to get attr of
+ *
+ * Returns zero on success, otherwise a less than
+ * zero value on failure
+ */
+int vop_getattr(struct vnode *vp, struct vattr *res);
+
#endif /* !_OS_VNODE_H_ */