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 getipnode* calls in nscd. Note that the 28 * getnodeby* APIs were renamed getipnodeby*. The interfaces 29 * related to them in the nscd will remain as getnode*. 30 */ 31 32 #include <stdlib.h> 33 #include <string.h> 34 #include <strings.h> 35 #include <sys/types.h> 36 #include <sys/socket.h> 37 #include <netinet/in.h> 38 #include <arpa/inet.h> 39 #include <inet/ip6.h> 40 #include "cache.h" 41 42 static int ipaddr_compar(const void *, const void *); 43 static uint_t ipaddr_gethash(nss_XbyY_key_t *, int); 44 static void ipaddr_getlogstr(char *, char *, size_t, nss_XbyY_args_t *); 45 46 static int ipname_compar(const void *, const void *); 47 static uint_t ipname_gethash(nss_XbyY_key_t *, int); 48 static void ipname_getlogstr(char *, char *, size_t, nss_XbyY_args_t *); 49 50 #define nnam_db ctx->nsc_db[0] 51 #define addr_db ctx->nsc_db[1] 52 53 #define NSC_NAME_IPNODES_BYNAME "getipnodebyname" 54 #define NSC_NAME_IPNODES_BYADDR "getipnodebyaddr" 55 56 void 57 ipnode_init_ctx(nsc_ctx_t *ctx) { 58 ctx->dbname = NSS_DBNAM_IPNODES; 59 ctx->file_name = "/etc/inet/ipnodes"; 60 ctx->db_count = 2; 61 nnam_db = make_cache(nsc_key_other, 62 NSS_DBOP_IPNODES_BYNAME, 63 NSC_NAME_IPNODES_BYNAME, 64 ipname_compar, 65 ipname_getlogstr, 66 ipname_gethash, nsc_ht_default, -1); 67 68 addr_db = make_cache(nsc_key_other, 69 NSS_DBOP_IPNODES_BYADDR, 70 NSC_NAME_IPNODES_BYADDR, 71 ipaddr_compar, 72 ipaddr_getlogstr, 73 ipaddr_gethash, nsc_ht_default, -1); 74 } 75 76 static int 77 ipaddr_compar(const void *n1, const void *n2) { 78 nsc_entry_t *e1, *e2; 79 int res, l1, l2; 80 81 e1 = (nsc_entry_t *)n1; 82 e2 = (nsc_entry_t *)n2; 83 84 if (e1->key.hostaddr.type > e2->key.hostaddr.type) 85 return (1); 86 else if (e1->key.hostaddr.type < e2->key.hostaddr.type) 87 return (-1); 88 89 l1 = e1->key.hostaddr.len; 90 l2 = e2->key.hostaddr.len; 91 res = memcmp(e1->key.hostaddr.addr, e2->key.hostaddr.addr, 92 (l2 > l1)?l1:l2); 93 return ((res) ? _NSC_INT_KEY_CMP(res, 0) : _NSC_INT_KEY_CMP(l1, l2)); 94 } 95 96 static uint_t 97 ipaddr_gethash(nss_XbyY_key_t *key, int htsize) { 98 return (db_gethash(key->hostaddr.addr, 99 key->hostaddr.len, htsize)); 100 } 101 102 static void 103 ipaddr_getlogstr(char *name, char *whoami, size_t len, nss_XbyY_args_t *argp) { 104 char addr[INET6_ADDRSTRLEN]; 105 106 if (inet_ntop(argp->key.hostaddr.type, argp->key.hostaddr.addr, addr, 107 sizeof (addr)) == NULL) { 108 (void) snprintf(whoami, len, "%s", name); 109 } else { 110 (void) snprintf(whoami, len, "%s [key=%s addrtype=%d]", 111 name, 112 addr, argp->key.hostaddr.type); 113 } 114 } 115 116 static int 117 ipname_compar(const void *n1, const void *n2) { 118 nsc_entry_t *e1, *e2; 119 int res, l1, l2; 120 121 e1 = (nsc_entry_t *)n1; 122 e2 = (nsc_entry_t *)n2; 123 124 if (e1->key.ipnode.af_family > e2->key.ipnode.af_family) 125 return (1); 126 else if (e1->key.ipnode.af_family < e2->key.ipnode.af_family) 127 return (-1); 128 129 l1 = strlen(e1->key.ipnode.name); 130 l2 = strlen(e2->key.ipnode.name); 131 res = strncasecmp(e1->key.ipnode.name, e2->key.ipnode.name, 132 (l1 > l2)?l1:l2); 133 return (_NSC_INT_KEY_CMP(res, 0)); 134 } 135 136 static uint_t 137 ipname_gethash(nss_XbyY_key_t *key, int htsize) { 138 return (cis_gethash(key->ipnode.name, htsize)); 139 } 140 141 static void 142 ipname_getlogstr(char *name, char *whoami, size_t len, nss_XbyY_args_t *argp) { 143 (void) snprintf(whoami, len, "%s [key=%s:af=%d:flags=%d]", 144 name, 145 argp->key.ipnode.name, 146 argp->key.ipnode.af_family, 147 argp->key.ipnode.flags); 148 } 149