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