xnu-2422.115.4.tar.gz

[apple/xnu.git] / bsd / miscfs / devfs / devfs.h

diff --git a/bsd/miscfs/devfs/devfs.h b/bsd/miscfs/devfs/devfs.h
index a896e0cf0b7d316d3469e1ac55320384534cfffe..88e63b4f5bc9cde1908820e4e799b2f6897e26ce 100644 (file)
--- a/bsd/miscfs/devfs/devfs.h
+++ b/bsd/miscfs/devfs/devfs.h
@@ -1,16 +1,19 @@
 /*
  * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
@@ -20,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * Copyright 1997,1998 Julian Elischer.  All rights reserved.
@@ -55,12 +58,40 @@
 
 #include <sys/appleapiopts.h>
 
-#ifdef __APPLE_API_UNSTABLE
 #define DEVFS_CHAR     0
 #define DEVFS_BLOCK    1
 
+/*
+ * Argument to clone callback after dev
+ */
+#define        DEVFS_CLONE_ALLOC       1       /* Allocate minor number slot */
+#define        DEVFS_CLONE_FREE        0       /* Free minor number slot */
+
 __BEGIN_DECLS
 
+/*
+ * Function: devfs_make_node_clone
+ *
+ * Purpose
+ *   Create a device node with the given pathname in the devfs namespace;
+ *   before returning a dev_t value for an open instance, the dev_t has
+ *   it's minor number updated by calling the supplied clone function on
+ *   the supplied dev..
+ *
+ * Parameters:
+ *   dev       - the dev_t value to associate
+ *   chrblk    - block or character device (DEVFS_CHAR or DEVFS_BLOCK)
+ *   uid, gid  - ownership
+ *   perms     - permissions
+ *   clone     - minor number cloning function
+ *   fmt, ...  - print format string and args to format the path name
+ * Returns:
+ *   A handle to a device node if successful, NULL otherwise.
+ */
+void *         devfs_make_node_clone(dev_t dev, int chrblk, uid_t uid, gid_t gid, 
+                            int perms, int (*clone)(dev_t dev, int action),
+                            const char *fmt, ...);
+
 /*
  * Function: devfs_make_node
  *
@@ -76,9 +107,10 @@ __BEGIN_DECLS
  * Returns:
  *   A handle to a device node if successful, NULL otherwise.
  */
-void *         devfs_make_node __P((dev_t dev, int chrblk, uid_t uid, gid_t gid, 
-                            int perms, char *fmt, ...));
+void *         devfs_make_node(dev_t dev, int chrblk, uid_t uid, gid_t gid, 
+                            int perms, const char *fmt, ...);
 
+#ifdef BSD_KERNEL_PRIVATE
 /*
  * Function: devfs_make_link
  *
@@ -88,7 +120,8 @@ void *       devfs_make_node __P((dev_t dev, int chrblk, uid_t uid, gid_t gid,
  * Returns:
  *   0 if successful, -1 if failed
  */
-int    devfs_link __P((void * handle, char *fmt, ...));
+int    devfs_make_link(void * handle, char *fmt, ...);
+#endif /* BSD_KERNEL_PRIVATE */
 
 /*
  * Function: devfs_remove
@@ -97,10 +130,9 @@ int devfs_link __P((void * handle, char *fmt, ...));
  *   Remove the device node returned by devfs_make_node() along with
  *   any links created with devfs_make_link().
  */
-void   devfs_remove __P((void * handle));
+void   devfs_remove(void * handle);
 
 __END_DECLS
-#endif /* __APPLE_API_UNSTABLE */
 
 #ifdef __APPLE_API_PRIVATE
 /* XXX */
@@ -111,6 +143,7 @@ __END_DECLS
 /* XXX */
 #define        GID_WHEEL       0
 #define        GID_KMEM        2
+#define        GID_TTY         4
 #define        GID_OPERATOR    5
 #define        GID_BIN         7
 #define        GID_GAMES       13