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
48 static nss_status_t
getbyhost(be,a)49 getbyhost(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
59 static nss_status_t
getbyether(be,a)60 getbyether(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
73 static nis_backend_op_t ethers_ops[] = {
74 _nss_nis_destr,
75 getbyhost,
76 getbyether
77 };
78
79 /*ARGSUSED*/
80 nss_backend_t *
_nss_nis_ethers_constr(dummy1,dummy2,dummy3)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