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 ad06c62ace691f1465b95d215334c10affb3ab0b..88e63b4f5bc9cde1908820e4e799b2f6897e26ce 100644 (file)
--- a/bsd/miscfs/devfs/devfs.h
+++ b/bsd/miscfs/devfs/devfs.h
@@ -1,31 +1,29 @@
 /*
- * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * @APPLE_LICENSE_OSREFERENCE_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. 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.
  * 
- * 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.  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 
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
- * Please see the License for the specific language governing rights and 
+ * 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
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
  * limitations under the License.
- *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ * 
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * Copyright 1997,1998 Julian Elischer.  All rights reserved.
@@ -63,8 +61,37 @@
 #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
  *
@@ -93,7 +120,7 @@ void *       devfs_make_node(dev_t dev, int chrblk, uid_t uid, gid_t gid,
  * Returns:
  *   0 if successful, -1 if failed
  */
-int    devfs_link(void * handle, char *fmt, ...);
+int    devfs_make_link(void * handle, char *fmt, ...);
 #endif /* BSD_KERNEL_PRIVATE */
 
 /*
@@ -116,6 +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