1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25/* Copyright (c) 1990 Mentat Inc. */
26
27#ifndef _INET_ND_H
28#define	_INET_ND_H
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#include <sys/types.h>
33#include <inet/common.h>
34#include <inet/led.h>
35
36#ifdef	__cplusplus
37extern "C" {
38#endif
39
40#define	ND_BASE		('N' << 8)	/* base */
41#define	ND_GET		(ND_BASE + 0)	/* Get a value */
42#define	ND_SET		(ND_BASE + 1)	/* Set a value */
43
44#ifdef	_KERNEL
45/* ND callback function prototypes */
46typedef	int (*ndgetf_t)(queue_t *, MBLKP, caddr_t, cred_t *);
47typedef	int (*ndsetf_t)(queue_t *, MBLKP, char *, caddr_t, cred_t *);
48
49/* Named dispatch table entry */
50typedef struct  nde_s {
51	char    *nde_name;
52	pfi_t	nde_get_pfi;
53	pfi_t	nde_set_pfi;
54	caddr_t nde_data;
55} NDE;
56
57/* Name dispatch table */
58typedef struct  nd_s {
59	int	nd_free_count;	/* number of unused nd table entries */
60	int	nd_size;	/* size (in bytes) of current table */
61	NDE	*nd_tbl;	/* pointer to table in heap */
62} ND;
63
64#define	NDE_ALLOC_COUNT 32
65#define	NDE_ALLOC_SIZE  (sizeof (NDE) * NDE_ALLOC_COUNT)
66
67/* 64K STREAM limit - the max ndd info header. */
68#define	ND_MAX_BUF_LEN	65303
69
70/*
71 * See uts/common/inet/nd.c for comments on how to use these routines.
72 */
73extern boolean_t	nd_load(caddr_t *, char *, ndgetf_t, ndsetf_t, caddr_t);
74extern void		nd_unload(caddr_t *, char *);
75extern void		nd_free(caddr_t *);
76extern int		nd_getset(queue_t *, caddr_t, MBLKP);
77
78/*
79 * Canned nd_get and nd_set routines for use with nd_load().
80 */
81extern int	nd_get_default(queue_t *, MBLKP, caddr_t, cred_t *);
82extern int	nd_get_long(queue_t *, MBLKP, caddr_t, cred_t *);
83extern int	nd_get_names(queue_t *, MBLKP, caddr_t, cred_t *);
84extern int	nd_set_default(queue_t *, MBLKP, char *, caddr_t, cred_t *);
85extern int	nd_set_long(queue_t *, MBLKP, char *, caddr_t, cred_t *);
86
87#endif	/* _KERNEL */
88
89#ifdef	__cplusplus
90}
91#endif
92
93#endif	/* _INET_ND_H */
94