Update to tVFS_Node to support hard links

diff --git a/Kernel/include/vfs.h b/Kernel/include/vfs.h
index e3a61d4..ab0bd35 100644 (file)
--- a/Kernel/include/vfs.h
+++ b/Kernel/include/vfs.h
@@ -224,7 +224,7 @@ typedef struct sVFS_Node
         * \param Node  Pointer to this node
         * \param Name  Name of the new child
         * \param Flags Flags to apply to the new child (directory or symlink)
-        * \return Boolean success
+        * \return Zero on Success, non-zero on error (see errno.h)
         */
         int    (*MkNod)(struct sVFS_Node *Node, char *Name, Uint Flags);
        
@@ -236,6 +236,15 @@ typedef struct sVFS_Node
         * \return Zero on Success, non-zero on error (see errno.h)
         */
         int    (*Relink)(struct sVFS_Node *Node, char *OldName, char *NewName);
+       
+       /**
+        * \brief Link a node to a name
+        * \param Node  Pointer to this node (directory)
+        * \param Child Node to create a new link to
+        * \param NewName       Name for the new link
+        * \return Zeron on success, non-zero on error (see errno.h)
+        */
+        int    (*Link)(struct sVFS_Node *Node, struct sVFS_Node *Child, char *NewName);
         
         /**
          * }

diff --git a/Modules/Filesystems/Ext2/dir.c b/Modules/Filesystems/Ext2/dir.c
index 86092b0..1832ff9 100644 (file)
--- a/Modules/Filesystems/Ext2/dir.c
+++ b/Modules/Filesystems/Ext2/dir.c
@@ -13,16 +13,17 @@
 
 
 // === PROTOTYPES ===
-char           *Ext2_ReadDir(tVFS_Node *Node, int Pos);
+char   *Ext2_ReadDir(tVFS_Node *Node, int Pos);
 tVFS_Node      *Ext2_FindDir(tVFS_Node *Node, char *FileName);
- int           Ext2_MkNod(tVFS_Node *Node, char *Name, Uint Flags);
+ int   Ext2_MkNod(tVFS_Node *Node, char *Name, Uint Flags);
 tVFS_Node      *Ext2_int_CreateNode(tExt2_Disk *Disk, Uint InodeId, char *Name);
 
 // === CODE ===
 /**
- \fn char *Ext2_ReadDir(tVFS_Node *Node, int Pos)
- \brief Reads a directory entry
-*/
+ * \brief Reads a directory entry
+ * \param Node Directory node
+ * \param Pos  Position of desired element
+ */
 char *Ext2_ReadDir(tVFS_Node *Node, int Pos)
 {
        tExt2_Inode     inode;
@@ -47,6 +48,7 @@ char *Ext2_ReadDir(tVFS_Node *Node, int Pos)
        // Get First Block
        // - Do this ourselves as it is a simple operation
        Base = inode.i_block[0] * disk->BlockSize;
+       // Scan directory
        while(Pos -- && size > 0)
        {
                VFS_ReadAt( disk->FD, Base+ofs, sizeof(tExt2_DirEnt), &dirent);
@@ -93,12 +95,11 @@ char *Ext2_ReadDir(tVFS_Node *Node, int Pos)
 }
 
 /**
- \fn tVFS_Node *Ext2_FindDir(tVFS_Node *node, char *filename)
- \brief Gets information about a file
- \param node   vfs node - Parent Node
- \param filename       String - Name of file
- \return VFS Node of file
-*/
+ * \brief Gets information about a file
+ * \param Node Parent Node
+ * \param Filename     Name of wanted file
+ * \return VFS Node of file
+ */
 tVFS_Node *Ext2_FindDir(tVFS_Node *Node, char *Filename)
 {
        tExt2_Disk      *disk = Node->ImplPtr;
@@ -152,7 +153,22 @@ tVFS_Node *Ext2_FindDir(tVFS_Node *Node, char *Filename)
  */
 int Ext2_MkNod(tVFS_Node *Parent, char *Name, Uint Flags)
 {
-       return 0;
+       tVFS_Node       *child;
+       
+       child = Ext2_int_AllocateNode(Parent, Flags);
+       return Ext2_Link(Parent, child, Name);
+}
+
+/**
+ * \brief Links an existing node to a new name
+ * \param Parent       Parent (directory) node
+ * \param Node Node to link
+ * \param Name New name for the node
+ * \return Boolean Failure - See ::tVFS_Node.Link for info
+ */
+int Ext2_Link(tVFS_Node *Parent, tVFS_Node *Node, char *Name)
+{
+       return 1;
 }
 
 // ---- INTERNAL FUNCTIONS ----