usr/src/uts/common/inet/nd.h

root/usr/src/uts/common/inet/nd.h
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */
/* Copyright (c) 1990 Mentat Inc. */

#ifndef _INET_ND_H
#define _INET_ND_H

#include <sys/types.h>
#include <inet/common.h>
#include <inet/led.h>

#ifdef  __cplusplus
extern "C" {
#endif

#define ND_BASE         ('N' << 8)      /* base */
#define ND_GET          (ND_BASE + 0)   /* Get a value */
#define ND_SET          (ND_BASE + 1)   /* Set a value */

#ifdef  _KERNEL
/* ND callback function prototypes */
typedef int (*ndgetf_t)(queue_t *, MBLKP, caddr_t, cred_t *);
typedef int (*ndsetf_t)(queue_t *, MBLKP, char *, caddr_t, cred_t *);

/* Named dispatch table entry */
typedef struct  nde_s {
        char    *nde_name;
        pfi_t   nde_get_pfi;
        pfi_t   nde_set_pfi;
        caddr_t nde_data;
} NDE;

/* Name dispatch table */
typedef struct  nd_s {
        int     nd_free_count;  /* number of unused nd table entries */
        int     nd_size;        /* size (in bytes) of current table */
        NDE     *nd_tbl;        /* pointer to table in heap */
} ND;

#define NDE_ALLOC_COUNT 32
#define NDE_ALLOC_SIZE  (sizeof (NDE) * NDE_ALLOC_COUNT)

/* 64K STREAM limit - the max ndd info header. */
#define ND_MAX_BUF_LEN  65303

/*
 * See uts/common/inet/nd.c for comments on how to use these routines.
 */
extern boolean_t        nd_load(caddr_t *, char *, ndgetf_t, ndsetf_t, caddr_t);
extern void             nd_unload(caddr_t *, char *);
extern void             nd_free(caddr_t *);
extern int              nd_getset(queue_t *, caddr_t, MBLKP);

/*
 * Canned nd_get and nd_set routines for use with nd_load().
 */
extern int      nd_get_default(queue_t *, MBLKP, caddr_t, cred_t *);
extern int      nd_get_long(queue_t *, MBLKP, caddr_t, cred_t *);
extern int      nd_get_names(queue_t *, MBLKP, caddr_t, cred_t *);
extern int      nd_set_default(queue_t *, MBLKP, char *, caddr_t, cred_t *);
extern int      nd_set_long(queue_t *, MBLKP, char *, caddr_t, cred_t *);

#endif  /* _KERNEL */

#ifdef  __cplusplus
}
#endif

#endif  /* _INET_ND_H */
Illumos
