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