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diff --git a/ipc/ipc_entry.h b/ipc/ipc_entry.h
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+/*
+ * Mach Operating System
+ * Copyright (c) 1991,1990,1989 Carnegie Mellon University.
+ * Copyright (c) 1993,1994 The University of Utah and
+ * the Computer Systems Laboratory (CSL).
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON, THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF
+ * THIS SOFTWARE IN ITS "AS IS" CONDITION, AND DISCLAIM ANY LIABILITY
+ * OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF
+ * THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie Mellon
+ * the rights to redistribute these changes.
+ */
+/*
+ *	File:	ipc/ipc_entry.h
+ *	Author:	Rich Draves
+ *	Date:	1989
+ *
+ *	Definitions for translation entries, which represent
+ *	tasks' capabilities for ports and port sets.
+ */
+
+#ifndef	_IPC_IPC_ENTRY_H_
+#define _IPC_IPC_ENTRY_H_
+
+#include <mach/mach_types.h>
+#include <mach/port.h>
+#include <mach/kern_return.h>
+#include <kern/slab.h>
+#include <ipc/port.h>
+#include <ipc/ipc_table.h>
+#include <ipc/ipc_types.h>
+
+/*
+ *	Spaces hold capabilities for ipc_object_t's (ports and port sets).
+ *	Each ipc_entry_t records a capability.
+ */
+
+typedef unsigned int ipc_entry_bits_t;
+typedef ipc_table_elems_t ipc_entry_num_t;	/* number of entries */
+
+typedef struct ipc_entry {
+	mach_port_name_t ie_name;
+	ipc_entry_bits_t ie_bits;
+	struct ipc_object *ie_object;
+	union {
+		struct ipc_entry *next_free;
+		/*XXX ipc_port_request_index_t request;*/
+		unsigned int request;
+	} index;
+} *ipc_entry_t;
+
+#define	IE_NULL		((ipc_entry_t) 0)
+
+#define	ie_request	index.request
+#define	ie_next_free	index.next_free
+
+#define	IE_BITS_UREFS_MASK	0x0000ffff	/* 16 bits of user-reference */
+#define	IE_BITS_UREFS(bits)	((bits) & IE_BITS_UREFS_MASK)
+
+#define	IE_BITS_TYPE_MASK	0x001f0000	/* 5 bits of capability type */
+#define	IE_BITS_TYPE(bits)	((bits) & IE_BITS_TYPE_MASK)
+
+#define	IE_BITS_MAREQUEST	0x00200000	/* 1 bit for msg-accepted */
+
+#define	IE_BITS_RIGHT_MASK	0x003fffff	/* relevant to the right */
+
+#if PORT_GENERATIONS
+#error "not supported"
+#define	IE_BITS_GEN_MASK	0xff000000U	/* 8 bits for generation */
+#define	IE_BITS_GEN(bits)	((bits) & IE_BITS_GEN_MASK)
+#define	IE_BITS_GEN_ONE		0x01000000	/* low bit of generation */
+#else
+#define	IE_BITS_GEN_MASK	0
+#define	IE_BITS_GEN(bits)	0
+#define	IE_BITS_GEN_ONE		0
+#endif
+
+
+extern struct kmem_cache ipc_entry_cache;
+#define ie_alloc()	((ipc_entry_t) kmem_cache_alloc(&ipc_entry_cache))
+#define	ie_free(e)	kmem_cache_free(&ipc_entry_cache, (vm_offset_t) (e))
+
+extern kern_return_t
+ipc_entry_alloc(ipc_space_t space, mach_port_name_t *namep, ipc_entry_t *entryp);
+
+extern kern_return_t
+ipc_entry_alloc_name(ipc_space_t space, mach_port_name_t name, ipc_entry_t *entryp);
+
+ipc_entry_t
+db_ipc_object_by_name(
+       task_t        	  task,
+       mach_port_name_t   name);
+
+#endif	/* _IPC_IPC_ENTRY_H_ */