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 getipnode* calls in nscd. Note that the 30 * getnodeby* APIs were renamed getipnodeby*. The interfaces 31 * related to them in the nscd will remain as getnode*. 32 */ 33 34 #include <stdlib.h> 35 #include <string.h> 36 #include <strings.h> 37 #include <sys/types.h> 38 #include <sys/socket.h> 39 #include <netinet/in.h> 40 #include <arpa/inet.h> 41 #include <inet/ip6.h> 42 #include "cache.h" 43 44 static int ipaddr_compar(const void *, const void *); 45 static uint_t ipaddr_gethash(nss_XbyY_key_t *, int); 46 static void ipaddr_getlogstr(char *, char *, size_t, nss_XbyY_args_t *); 47 48 static int ipname_compar(const void *, const void *); 49 static uint_t ipname_gethash(nss_XbyY_key_t *, int); 50 static void ipname_getlogstr(char *, char *, size_t, nss_XbyY_args_t *); 51 52 #define nnam_db ctx->nsc_db[0] 53 #define addr_db ctx->nsc_db[1] 54 55 #define NSC_NAME_IPNODES_BYNAME "getipnodebyname" 56 #define NSC_NAME_IPNODES_BYADDR "getipnodebyaddr" 57 58 void 59 ipnode_init_ctx(nsc_ctx_t *ctx) { 60 ctx->dbname = NSS_DBNAM_IPNODES; 61 ctx->file_name = "/etc/inet/ipnodes"; 62 ctx->db_count = 2; 63 nnam_db = make_cache(nsc_key_other, 64 NSS_DBOP_IPNODES_BYNAME, 65 NSC_NAME_IPNODES_BYNAME, 66 ipname_compar, 67 ipname_getlogstr, 68 ipname_gethash, nsc_ht_default, -1); 69 70 addr_db = make_cache(nsc_key_other, 71 NSS_DBOP_IPNODES_BYADDR, 72 NSC_NAME_IPNODES_BYADDR, 73 ipaddr_compar, 74 ipaddr_getlogstr, 75 ipaddr_gethash, nsc_ht_default, -1); 76 } 77 78 static int 79 ipaddr_compar(const void *n1, const void *n2) { 80 nsc_entry_t *e1, *e2; 81 int res, l1, l2; 82 83 e1 = (nsc_entry_t *)n1; 84 e2 = (nsc_entry_t *)n2; 85 86 if (e1->key.hostaddr.type > e2->key.hostaddr.type) 87 return (1); 88 else if (e1->key.hostaddr.type < e2->key.hostaddr.type) 89 return (-1); 90 91 l1 = e1->key.hostaddr.len; 92 l2 = e2->key.hostaddr.len; 93 res = memcmp(e1->key.hostaddr.addr, e2->key.hostaddr.addr, 94 (l2 > l1)?l1:l2); 95 return ((res) ? _NSC_INT_KEY_CMP(res, 0) : _NSC_INT_KEY_CMP(l1, l2)); 96 } 97 98 static uint_t 99 ipaddr_gethash(nss_XbyY_key_t *key, int htsize) { 100 return (db_gethash(key->hostaddr.addr, 101 key->hostaddr.len, htsize)); 102 } 103 104 static void 105 ipaddr_getlogstr(char *name, char *whoami, size_t len, nss_XbyY_args_t *argp) { 106 char addr[INET6_ADDRSTRLEN]; 107 108 if (inet_ntop(argp->key.hostaddr.type, argp->key.hostaddr.addr, addr, 109 sizeof (addr)) == NULL) { 110 (void) snprintf(whoami, len, "%s", name); 111 } else { 112 (void) snprintf(whoami, len, "%s [key=%s addrtype=%d]", 113 name, 114 addr, argp->key.hostaddr.type); 115 } 116 } 117 118 static int 119 ipname_compar(const void *n1, const void *n2) { 120 nsc_entry_t *e1, *e2; 121 int res, l1, l2; 122 123 e1 = (nsc_entry_t *)n1; 124 e2 = (nsc_entry_t *)n2; 125 126 if (e1->key.ipnode.af_family > e2->key.ipnode.af_family) 127 return (1); 128 else if (e1->key.ipnode.af_family < e2->key.ipnode.af_family) 129 return (-1); 130 131 l1 = strlen(e1->key.ipnode.name); 132 l2 = strlen(e2->key.ipnode.name); 133 res = strncasecmp(e1->key.ipnode.name, e2->key.ipnode.name, 134 (l1 > l2)?l1:l2); 135 return (_NSC_INT_KEY_CMP(res, 0)); 136 } 137 138 static uint_t 139 ipname_gethash(nss_XbyY_key_t *key, int htsize) { 140 return (cis_gethash(key->ipnode.name, htsize)); 141 } 142 143 static void 144 ipname_getlogstr(char *name, char *whoami, size_t len, nss_XbyY_args_t *argp) { 145 (void) snprintf(whoami, len, "%s [key=%s:af=%d:flags=%d]", 146 name, 147 argp->key.ipnode.name, 148 argp->key.ipnode.af_family, 149 argp->key.ipnode.flags); 150 } 151