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 *	nis/ether_addr.c -- "nis" backend for nsswitch "ethers" database
26 */
27
28#pragma ident	"%Z%%M%	%I%	%E% SMI"
29
30/*
31 * All routines necessary to deal with the ethers NIS maps.  The maps
32 * contain mapping between 48 bit ethernet addresses and their corresponding
33 * hosts name.  The addresses have an ascii representation of the form
34 * "x:x:x:x:x:x" where x is a hex number between 0x00 and 0xff;  the
35 * bytes are always in network order.
36 */
37
38#include <stdio.h>
39#include <sys/types.h>
40#include <sys/socket.h>
41#include <net/if.h>
42#include <netinet/in.h>
43#include <net/if_arp.h>
44#include <netinet/if_ether.h>
45#include <nss_dbdefs.h>
46#include "nis_common.h"
47
48static nss_status_t
49getbyhost(be, a)
50	nis_backend_ptr_t	be;
51	void			*a;
52{
53	nss_XbyY_args_t		*argp = (nss_XbyY_args_t *)a;
54
55	return (_nss_nis_lookup(be, argp, 0, "ethers.byname",
56		argp->key.name, 0));
57}
58
59static nss_status_t
60getbyether(be, a)
61	nis_backend_ptr_t	be;
62	void			*a;
63{
64	nss_XbyY_args_t		*argp = (nss_XbyY_args_t *)a;
65	char	etherstr[18];
66	uchar_t	*e = argp->key.ether;
67
68	(void) snprintf(etherstr, 18, "%x:%x:%x:%x:%x:%x",
69		*e, *(e + 1), *(e + 2), *(e + 3), *(e + 4), *(e + 5));
70	return (_nss_nis_lookup(be, argp, 0, "ethers.byaddr", etherstr, 0));
71}
72
73static nis_backend_op_t ethers_ops[] = {
74	_nss_nis_destr,
75	getbyhost,
76	getbyether
77};
78
79/*ARGSUSED*/
80nss_backend_t *
81_nss_nis_ethers_constr(dummy1, dummy2, dummy3)
82	const char	*dummy1, *dummy2, *dummy3;
83{
84	return (_nss_nis_constr(ethers_ops,
85			sizeof (ethers_ops) / sizeof (ethers_ops[0]),
86			"ethers.byaddr"));
87}
88