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 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 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 * 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