X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Kernel%2Finclude%2Fvfs.h;h=e3a61d4359394773a110b150f0fa15d0d4503008;hb=b98fbd4e9c71447d81fc9bd643fb174c76346e0f;hp=47cbe190f983c4ef03a2cc778120d756010d4d50;hpb=cf4418f1fcdd441e639d6b95afda42dd74db5f7c;p=tpg%2Facess2.git

diff --git a/Kernel/include/vfs.h b/Kernel/include/vfs.h
index 47cbe190..e3a61d43 100644
--- a/Kernel/include/vfs.h
+++ b/Kernel/include/vfs.h
@@ -44,6 +44,24 @@
  * Marks a file as a symbolic link
  */
 #define VFS_FFLAG_SYMLINK	0x04
+/**
+ * \brief Set User ID Flag
+ * 
+ * Allows an executable file to change it's executing user to the file's
+ * owner.
+ * In the case of a directory, it means that all immediate children will
+ * inherit the UID of the parent.
+ */
+#define VFS_FFLAG_SETUID	0x08
+/**
+ * \brief Set Group ID Flag
+ * 
+ * Allows an executable file to change it's executing group to the file's
+ * owning group.
+ * In the case of a directory, it means that all immediate children will
+ * inherit the GID of the parent.
+ */
+#define VFS_FFLAG_SETGID	0x10
 /**
  * \}
  */
@@ -54,7 +72,8 @@
  * This structure provides the VFS with the functions required to read/write
  * the file (or directory) that it represents.
  */
-typedef struct sVFS_Node {
+typedef struct sVFS_Node
+{
 	/**
 	 * \name Identifiers
 	 * \brief Fields used by the driver to identify what data this node
@@ -68,12 +87,26 @@ typedef struct sVFS_Node {
 	 * \}
 	 */
 	
+	/**
+	 * \name Node State
+	 * \brief Stores the misc information about the node
+	 * \{
+	 */
 	 int	ReferenceCount;	//!< Number of times the node is used
 	
 	Uint64	Size;	//!< File Size
 	
 	Uint32	Flags;	//!< File Flags
 	
+	/**
+	 * Pointer to cached data (FS Specific)
+	 * \note Inode_* will free when the node is uncached this if needed
+	 */
+	void	*Data;
+	/**
+	 * \}
+	 */
+	
 	/**
 	 * \name Times
 	 * \{
@@ -200,7 +233,7 @@ typedef struct sVFS_Node {
 	 * \param Node	Pointer to this node
 	 * \param OldName	Name of the item to move/delete
 	 * \param NewName	New name (or NULL if unlinking is wanted)
-	 * \return Boolean Success
+	 * \return Zero on Success, non-zero on error (see errno.h)
 	 */
 	 int	(*Relink)(struct sVFS_Node *Node, char *OldName, char *NewName);
 	 
@@ -305,7 +338,7 @@ extern tVFS_Node	*Inode_GetCache(int Handle, Uint64 Inode);
  */
 extern tVFS_Node	*Inode_CacheNode(int Handle, tVFS_Node *Node);
 /**
- * \fn void Inode_UncacheNode(int Handle, Uint64 Inode)
+ * \fn int Inode_UncacheNode(int Handle, Uint64 Inode)
  * \brief Dereferences (and removes if needed) a node from the cache
  * \param Handle	A handle returned by Inode_GetHandle()
  * \param Inode	Value of the Inode field of the ::tVFS_Node you want to remove