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 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 /* 29 * Routines to handle ether_*to* calls in nscd 30 */ 31 32 #include <stdlib.h> 33 #include <net/if.h> 34 #include <netinet/in.h> 35 #include <netinet/if_ether.h> 36 #include <string.h> 37 #include "cache.h" 38 39 #define host_db ctx->nsc_db[0] 40 #define addr_db ctx->nsc_db[1] 41 42 #define NSC_NAME_ETHERS_HOSTTON "ether_hostton" 43 #define NSC_NAME_ETHERS_NTOHOST "ether_ntohost" 44 45 static void ether_getlogstr(char *, char *, size_t, nss_XbyY_args_t *); 46 static int ether_compar(const void *, const void *); 47 static uint_t ether_gethash(nss_XbyY_key_t *, int); 48 49 void 50 ether_init_ctx(nsc_ctx_t *ctx) { 51 ctx->dbname = NSS_DBNAM_ETHERS; 52 ctx->file_name = "/etc/ethers"; 53 ctx->db_count = 2; 54 host_db = make_cache(nsc_key_cis, 55 NSS_DBOP_ETHERS_HOSTTON, 56 NSC_NAME_ETHERS_HOSTTON, 57 NULL, NULL, NULL, nsc_ht_default, -1); 58 59 addr_db = make_cache(nsc_key_other, 60 NSS_DBOP_ETHERS_NTOHOST, 61 NSC_NAME_ETHERS_NTOHOST, 62 ether_compar, 63 ether_getlogstr, 64 ether_gethash, nsc_ht_default, -1); 65 } 66 67 static int 68 ether_compar(const void *n1, const void *n2) { 69 nsc_entry_t *e1, *e2; 70 int res; 71 72 e1 = (nsc_entry_t *)n1; 73 e2 = (nsc_entry_t *)n2; 74 if (ether_cmp(e1->key.ether, e2->key.ether) != 0) { 75 res = memcmp(e1->key.ether, e2->key.ether, 76 sizeof (struct ether_addr)); 77 return (_NSC_INT_KEY_CMP(res, 0)); 78 } 79 return (0); 80 } 81 82 static uint_t 83 ether_gethash(nss_XbyY_key_t *key, int htsize) { 84 return (db_gethash(key->ether, sizeof (struct ether_addr), 85 htsize)); 86 } 87 88 static void 89 ether_getlogstr(char *name, char *whoami, size_t len, nss_XbyY_args_t *argp) { 90 struct ether_addr *e; 91 e = (struct ether_addr *)argp->key.ether; 92 (void) snprintf(whoami, len, "%s [key=%x:%x:%x:%x:%x:%x]", 93 name, 94 e->ether_addr_octet[0], e->ether_addr_octet[1], 95 e->ether_addr_octet[2], e->ether_addr_octet[3], 96 e->ether_addr_octet[4], e->ether_addr_octet[5]); 97 } 98