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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2003 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <rpc/rpcent.h> 30 #include "ns_internal.h" 31 #include "ldap_common.h" 32 33 /* rpc attributes filters */ 34 #define _R_NAME "cn" 35 #define _R_NUMBER "oncrpcnumber" 36 37 38 #define _F_GETRPCBYNAME "(&(objectClass=oncRpc)(cn=%s))" 39 #define _F_GETRPCBYNAME_SSD "(&(%%s)(cn=%s))" 40 #define _F_GETRPCBYNUMBER "(&(objectClass=oncRpc)(oncRpcNumber=%d))" 41 #define _F_GETRPCBYNUMBER_SSD "(&(%%s)(oncRpcNumber=%d))" 42 43 static const char *rpc_attrs[] = { 44 _R_NAME, 45 _R_NUMBER, 46 (char *)NULL 47 }; 48 49 /* 50 * _nss_ldap_rpc2ent is the data marshaling method for the rpc getXbyY 51 * (e.g., getbyname(), getbynumber(), getrpcent()) backend processes. 52 * This method is called after a successful ldap search has been performed. 53 * This method will parse the ldap search values into *rpc = (struct 54 * rpcent *)argp->buf.result which the frontend process expects. Three 55 * error conditions are expected and returned to nsswitch. 56 */ 57 58 static int 59 _nss_ldap_rpc2ent(ldap_backend_ptr be, nss_XbyY_args_t *argp) 60 { 61 int i, j; 62 int nss_result; 63 int buflen = (int)0; 64 int firstime = (int)1; 65 unsigned long len = 0L; 66 char **mp, *cname = NULL; 67 char *buffer = (char *)NULL; 68 char *ceiling = (char *)NULL; 69 struct rpcent *rpc = (struct rpcent *)NULL; 70 ns_ldap_result_t *result = be->result; 71 ns_ldap_attr_t *attrptr; 72 73 buffer = (char *)argp->buf.buffer; 74 buflen = (size_t)argp->buf.buflen; 75 if (!argp->buf.result) { 76 nss_result = (int)NSS_STR_PARSE_ERANGE; 77 goto result_rpc2ent; 78 } 79 rpc = (struct rpcent *)argp->buf.result; 80 ceiling = buffer + buflen; 81 82 nss_result = (int)NSS_STR_PARSE_SUCCESS; 83 (void) memset(argp->buf.buffer, 0, buflen); 84 85 attrptr = getattr(result, 0); 86 if (attrptr == NULL) { 87 nss_result = (int)NSS_STR_PARSE_PARSE; 88 goto result_rpc2ent; 89 } 90 for (i = 0; i < result->entry->attr_count; i++) { 91 attrptr = getattr(result, i); 92 if (attrptr == NULL) { 93 nss_result = (int)NSS_STR_PARSE_PARSE; 94 goto result_rpc2ent; 95 } 96 if (strcasecmp(attrptr->attrname, _R_NAME) == 0) { 97 for (j = 0; j < attrptr->value_count; j++) { 98 /* traverse for all multivalued values */ 99 if (firstime) { 100 /* rpc name */ 101 cname = __s_api_get_canonical_name( 102 result->entry, attrptr, 1); 103 if (cname == NULL || 104 (len = strlen(cname)) < 1) { 105 nss_result = 106 NSS_STR_PARSE_PARSE; 107 goto result_rpc2ent; 108 } 109 rpc->r_name = buffer; 110 buffer += len + 1; 111 if (buffer >= ceiling) { 112 nss_result = 113 (int)NSS_STR_PARSE_ERANGE; 114 goto result_rpc2ent; 115 } 116 (void) strcpy(rpc->r_name, cname); 117 /* alias list */ 118 mp = rpc->r_aliases = 119 (char **)ROUND_UP(buffer, 120 sizeof (char **)); 121 buffer = (char *)rpc->r_aliases + 122 sizeof (char *) * 123 (attrptr->value_count + 1); 124 buffer = (char *)ROUND_UP(buffer, 125 sizeof (char **)); 126 if (buffer >= ceiling) { 127 nss_result = 128 (int)NSS_STR_PARSE_ERANGE; 129 goto result_rpc2ent; 130 } 131 firstime = (int)0; 132 } 133 /* alias list */ 134 if ((attrptr->attrvalue[j] == NULL) || 135 (len = strlen(attrptr->attrvalue[j])) < 1) { 136 nss_result = (int)NSS_STR_PARSE_PARSE; 137 goto result_rpc2ent; 138 } 139 /* skip canonical name */ 140 if (strcmp(attrptr->attrvalue[j], cname) == 0) 141 continue; 142 *mp = buffer; 143 buffer += len + 1; 144 if (buffer >= ceiling) { 145 nss_result = (int)NSS_STR_PARSE_ERANGE; 146 goto result_rpc2ent; 147 } 148 (void) strcpy(*mp++, attrptr->attrvalue[j]); 149 continue; 150 } 151 } 152 if (strcasecmp(attrptr->attrname, _R_NUMBER) == 0) { 153 if ((attrptr->attrvalue[0] == NULL) || 154 (len = strlen(attrptr->attrvalue[0])) < 1) { 155 nss_result = (int)NSS_STR_PARSE_PARSE; 156 goto result_rpc2ent; 157 } 158 errno = 0; 159 rpc->r_number = (int)strtol(attrptr->attrvalue[0], 160 (char **)NULL, 10); 161 if (errno != 0) { 162 nss_result = (int)NSS_STR_PARSE_PARSE; 163 goto result_rpc2ent; 164 } 165 continue; 166 } 167 } 168 if (mp != NULL) 169 *mp = NULL; 170 171 #ifdef DEBUG 172 (void) fprintf(stdout, "\n[getrpcent.c: _nss_ldap_rpc2ent]\n"); 173 (void) fprintf(stdout, " r_name: [%s]\n", rpc->r_name); 174 if (mp != NULL) { 175 for (mp = rpc->r_aliases; *mp != NULL; mp++) 176 (void) fprintf(stdout, " r_aliases: [%s]\n", *mp); 177 } 178 (void) fprintf(stdout, " r_number: [%d]\n", rpc->r_number); 179 #endif /* DEBUG */ 180 181 result_rpc2ent: 182 183 (void) __ns_ldap_freeResult(&be->result); 184 return ((int)nss_result); 185 } 186 187 188 /* 189 * getbyname gets struct rpcent values by rpc name. This function 190 * constructs an ldap search filter using the rpc name invocation 191 * parameter and the getrpcbyname search filter defined. Once the 192 * filter is constructed, we search for a matching entry and marshal 193 * the data results into *rpc = (struct rpcent *)argp->buf.result. 194 * The function _nss_ldap_rpc2ent performs the data marshaling. 195 */ 196 197 static nss_status_t 198 getbyname(ldap_backend_ptr be, void *a) 199 { 200 nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; 201 char searchfilter[SEARCHFILTERLEN]; 202 char userdata[SEARCHFILTERLEN]; 203 char name[SEARCHFILTERLEN]; 204 int ret; 205 206 if (_ldap_filter_name(name, argp->key.name, sizeof (name)) != 0) 207 return ((nss_status_t)NSS_NOTFOUND); 208 209 ret = snprintf(searchfilter, sizeof (searchfilter), _F_GETRPCBYNAME, 210 name); 211 if (ret >= sizeof (searchfilter) || ret < 0) 212 return ((nss_status_t)NSS_NOTFOUND); 213 214 ret = snprintf(userdata, sizeof (userdata), _F_GETRPCBYNAME_SSD, name); 215 if (ret >= sizeof (userdata) || ret < 0) 216 return ((nss_status_t)NSS_NOTFOUND); 217 218 return ((nss_status_t)_nss_ldap_lookup(be, argp, _RPC, searchfilter, 219 NULL, _merge_SSD_filter, userdata)); 220 } 221 222 223 /* 224 * getbynumber gets struct rpcent values by rpc number. This function 225 * constructs an ldap search filter using the rpc number invocation 226 * parameter and the getrpcbynumber search filter defined. Once the 227 * filter is constructed, we search for a matching entry and marshal 228 * the data results into *rpc = (struct rpcent *)argp->buf.result. 229 * The function _nss_ldap_rpc2ent performs the data marshaling. 230 */ 231 232 static nss_status_t 233 getbynumber(ldap_backend_ptr be, void *a) 234 { 235 nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; 236 char searchfilter[SEARCHFILTERLEN]; 237 char userdata[SEARCHFILTERLEN]; 238 int ret; 239 240 ret = snprintf(searchfilter, sizeof (searchfilter), 241 _F_GETRPCBYNUMBER, argp->key.number); 242 if (ret >= sizeof (searchfilter) || ret < 0) 243 return ((nss_status_t)NSS_NOTFOUND); 244 245 ret = snprintf(userdata, sizeof (userdata), 246 _F_GETRPCBYNUMBER_SSD, argp->key.number); 247 if (ret >= sizeof (userdata) || ret < 0) 248 return ((nss_status_t)NSS_NOTFOUND); 249 250 return ((nss_status_t)_nss_ldap_lookup(be, argp, _RPC, searchfilter, 251 NULL, _merge_SSD_filter, userdata)); 252 } 253 254 255 static ldap_backend_op_t rpc_ops[] = { 256 _nss_ldap_destr, 257 _nss_ldap_endent, 258 _nss_ldap_setent, 259 _nss_ldap_getent, 260 getbyname, 261 getbynumber 262 }; 263 264 265 /* 266 * _nss_ldap_rpc_constr is where life begins. This function calls the generic 267 * ldap constructor function to define and build the abstract data types 268 * required to support ldap operations. 269 */ 270 271 /*ARGSUSED0*/ 272 nss_backend_t * 273 _nss_ldap_rpc_constr(const char *dummy1, const char *dummy2, 274 const char *dummy3) 275 { 276 277 return ((nss_backend_t *)_nss_ldap_constr(rpc_ops, 278 sizeof (rpc_ops)/sizeof (rpc_ops[0]), 279 _RPC, rpc_attrs, _nss_ldap_rpc2ent)); 280 } 281