1 /* $NetBSD: error.c,v 1.1.1.4 2014/05/28 09:58:41 tron Exp $ */ 2 3 /* $OpenLDAP$ */ 4 /* This work is part of OpenLDAP Software <http://www.openldap.org/>. 5 * 6 * Copyright 1998-2014 The OpenLDAP Foundation. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted only as authorized by the OpenLDAP 11 * Public License. 12 * 13 * A copy of this license is available in the file LICENSE in the 14 * top-level directory of the distribution or, alternatively, at 15 * <http://www.OpenLDAP.org/license.html>. 16 */ 17 18 #include "portable.h" 19 20 #include <stdio.h> 21 22 #include <ac/stdlib.h> 23 24 #include <ac/socket.h> 25 #include <ac/string.h> 26 #include <ac/time.h> 27 28 #include "ldap-int.h" 29 30 void ldap_int_error_init( void ) { 31 } 32 33 char * 34 ldap_err2string( int err ) 35 { 36 char *m; 37 38 Debug( LDAP_DEBUG_TRACE, "ldap_err2string\n", 0, 0, 0 ); 39 40 switch ( err ) { 41 # define C(code, message) case code: m = message; break 42 43 /* LDAPv3 (RFC 4511) codes */ 44 C(LDAP_SUCCESS, N_("Success")); 45 C(LDAP_OPERATIONS_ERROR, N_("Operations error")); 46 C(LDAP_PROTOCOL_ERROR, N_("Protocol error")); 47 C(LDAP_TIMELIMIT_EXCEEDED, N_("Time limit exceeded")); 48 C(LDAP_SIZELIMIT_EXCEEDED, N_("Size limit exceeded")); 49 C(LDAP_COMPARE_FALSE, N_("Compare False")); 50 C(LDAP_COMPARE_TRUE, N_("Compare True")); 51 C(LDAP_STRONG_AUTH_NOT_SUPPORTED,N_("Authentication method not supported")); 52 C(LDAP_STRONG_AUTH_REQUIRED, N_("Strong(er) authentication required")); 53 54 C(LDAP_REFERRAL, N_("Referral")); 55 C(LDAP_ADMINLIMIT_EXCEEDED, N_("Administrative limit exceeded")); 56 C(LDAP_UNAVAILABLE_CRITICAL_EXTENSION, 57 N_("Critical extension is unavailable")); 58 C(LDAP_CONFIDENTIALITY_REQUIRED,N_("Confidentiality required")); 59 C(LDAP_SASL_BIND_IN_PROGRESS, N_("SASL bind in progress")); 60 61 C(LDAP_NO_SUCH_ATTRIBUTE, N_("No such attribute")); 62 C(LDAP_UNDEFINED_TYPE, N_("Undefined attribute type")); 63 C(LDAP_INAPPROPRIATE_MATCHING, N_("Inappropriate matching")); 64 C(LDAP_CONSTRAINT_VIOLATION, N_("Constraint violation")); 65 C(LDAP_TYPE_OR_VALUE_EXISTS, N_("Type or value exists")); 66 C(LDAP_INVALID_SYNTAX, N_("Invalid syntax")); 67 68 C(LDAP_NO_SUCH_OBJECT, N_("No such object")); 69 C(LDAP_ALIAS_PROBLEM, N_("Alias problem")); 70 C(LDAP_INVALID_DN_SYNTAX, N_("Invalid DN syntax")); 71 72 C(LDAP_ALIAS_DEREF_PROBLEM, N_("Alias dereferencing problem")); 73 74 C(LDAP_INAPPROPRIATE_AUTH, N_("Inappropriate authentication")); 75 C(LDAP_INVALID_CREDENTIALS, N_("Invalid credentials")); 76 C(LDAP_INSUFFICIENT_ACCESS, N_("Insufficient access")); 77 C(LDAP_BUSY, N_("Server is busy")); 78 C(LDAP_UNAVAILABLE, N_("Server is unavailable")); 79 C(LDAP_UNWILLING_TO_PERFORM, N_("Server is unwilling to perform")); 80 C(LDAP_LOOP_DETECT, N_("Loop detected")); 81 82 C(LDAP_NAMING_VIOLATION, N_("Naming violation")); 83 C(LDAP_OBJECT_CLASS_VIOLATION, N_("Object class violation")); 84 C(LDAP_NOT_ALLOWED_ON_NONLEAF, N_("Operation not allowed on non-leaf")); 85 C(LDAP_NOT_ALLOWED_ON_RDN, N_("Operation not allowed on RDN")); 86 C(LDAP_ALREADY_EXISTS, N_("Already exists")); 87 C(LDAP_NO_OBJECT_CLASS_MODS, N_("Cannot modify object class")); 88 89 C(LDAP_AFFECTS_MULTIPLE_DSAS, N_("Operation affects multiple DSAs")); 90 91 /* Virtual List View draft */ 92 C(LDAP_VLV_ERROR, N_("Virtual List View error")); 93 94 C(LDAP_OTHER, N_("Other (e.g., implementation specific) error")); 95 96 /* LDAPv2 (RFC 1777) codes */ 97 C(LDAP_PARTIAL_RESULTS, N_("Partial results and referral received")); 98 C(LDAP_IS_LEAF, N_("Entry is a leaf")); 99 100 /* Connection-less LDAP (CLDAP - RFC 1798) code */ 101 C(LDAP_RESULTS_TOO_LARGE, N_("Results too large")); 102 103 /* Cancel Operation (RFC 3909) codes */ 104 C(LDAP_CANCELLED, N_("Cancelled")); 105 C(LDAP_NO_SUCH_OPERATION, N_("No Operation to Cancel")); 106 C(LDAP_TOO_LATE, N_("Too Late to Cancel")); 107 C(LDAP_CANNOT_CANCEL, N_("Cannot Cancel")); 108 109 /* Assert Control (RFC 4528 and old internet-draft) codes */ 110 C(LDAP_ASSERTION_FAILED, N_("Assertion Failed")); 111 C(LDAP_X_ASSERTION_FAILED, N_("Assertion Failed (X)")); 112 113 /* Proxied Authorization Control (RFC 4370 and I-D) codes */ 114 C(LDAP_PROXIED_AUTHORIZATION_DENIED, N_("Proxied Authorization Denied")); 115 C(LDAP_X_PROXY_AUTHZ_FAILURE, N_("Proxy Authorization Failure (X)")); 116 117 /* Content Sync Operation (RFC 4533 and I-D) codes */ 118 C(LDAP_SYNC_REFRESH_REQUIRED, N_("Content Sync Refresh Required")); 119 C(LDAP_X_SYNC_REFRESH_REQUIRED, N_("Content Sync Refresh Required (X)")); 120 121 /* No-Op Control (draft-zeilenga-ldap-noop) code */ 122 C(LDAP_X_NO_OPERATION, N_("No Operation (X)")); 123 124 /* Client Update Protocol (RFC 3928) codes */ 125 C(LDAP_CUP_RESOURCES_EXHAUSTED, N_("LCUP Resources Exhausted")); 126 C(LDAP_CUP_SECURITY_VIOLATION, N_("LCUP Security Violation")); 127 C(LDAP_CUP_INVALID_DATA, N_("LCUP Invalid Data")); 128 C(LDAP_CUP_UNSUPPORTED_SCHEME, N_("LCUP Unsupported Scheme")); 129 C(LDAP_CUP_RELOAD_REQUIRED, N_("LCUP Reload Required")); 130 131 #ifdef LDAP_X_TXN 132 /* Codes related to LDAP Transactions (draft-zeilenga-ldap-txn) */ 133 C(LDAP_X_TXN_SPECIFY_OKAY, N_("TXN specify okay")); 134 C(LDAP_X_TXN_ID_INVALID, N_("TXN ID is invalid")); 135 #endif 136 137 /* API codes - renumbered since draft-ietf-ldapext-ldap-c-api */ 138 C(LDAP_SERVER_DOWN, N_("Can't contact LDAP server")); 139 C(LDAP_LOCAL_ERROR, N_("Local error")); 140 C(LDAP_ENCODING_ERROR, N_("Encoding error")); 141 C(LDAP_DECODING_ERROR, N_("Decoding error")); 142 C(LDAP_TIMEOUT, N_("Timed out")); 143 C(LDAP_AUTH_UNKNOWN, N_("Unknown authentication method")); 144 C(LDAP_FILTER_ERROR, N_("Bad search filter")); 145 C(LDAP_USER_CANCELLED, N_("User cancelled operation")); 146 C(LDAP_PARAM_ERROR, N_("Bad parameter to an ldap routine")); 147 C(LDAP_NO_MEMORY, N_("Out of memory")); 148 C(LDAP_CONNECT_ERROR, N_("Connect error")); 149 C(LDAP_NOT_SUPPORTED, N_("Not Supported")); 150 C(LDAP_CONTROL_NOT_FOUND, N_("Control not found")); 151 C(LDAP_NO_RESULTS_RETURNED, N_("No results returned")); 152 C(LDAP_MORE_RESULTS_TO_RETURN, N_("More results to return")); 153 C(LDAP_CLIENT_LOOP, N_("Client Loop")); 154 C(LDAP_REFERRAL_LIMIT_EXCEEDED, N_("Referral Limit Exceeded")); 155 # undef C 156 157 default: 158 m = (LDAP_API_ERROR(err) ? N_("Unknown API error") 159 : LDAP_E_ERROR(err) ? N_("Unknown (extension) error") 160 : LDAP_X_ERROR(err) ? N_("Unknown (private extension) error") 161 : N_("Unknown error")); 162 break; 163 } 164 165 return _(m); 166 } 167 168 /* deprecated */ 169 void 170 ldap_perror( LDAP *ld, LDAP_CONST char *str ) 171 { 172 int i; 173 174 assert( ld != NULL ); 175 assert( LDAP_VALID( ld ) ); 176 assert( str != NULL ); 177 178 fprintf( stderr, "%s: %s (%d)\n", 179 str ? str : "ldap_perror", 180 ldap_err2string( ld->ld_errno ), 181 ld->ld_errno ); 182 183 if ( ld->ld_matched != NULL && ld->ld_matched[0] != '\0' ) { 184 fprintf( stderr, _("\tmatched DN: %s\n"), ld->ld_matched ); 185 } 186 187 if ( ld->ld_error != NULL && ld->ld_error[0] != '\0' ) { 188 fprintf( stderr, _("\tadditional info: %s\n"), ld->ld_error ); 189 } 190 191 if ( ld->ld_referrals != NULL && ld->ld_referrals[0] != NULL) { 192 fprintf( stderr, _("\treferrals:\n") ); 193 for (i=0; ld->ld_referrals[i]; i++) { 194 fprintf( stderr, _("\t\t%s\n"), ld->ld_referrals[i] ); 195 } 196 } 197 198 fflush( stderr ); 199 } 200 201 /* deprecated */ 202 int 203 ldap_result2error( LDAP *ld, LDAPMessage *r, int freeit ) 204 { 205 int rc, err; 206 207 rc = ldap_parse_result( ld, r, &err, 208 NULL, NULL, NULL, NULL, freeit ); 209 210 return err != LDAP_SUCCESS ? err : rc; 211 } 212 213 /* 214 * Parse LDAPResult Messages: 215 * 216 * LDAPResult ::= SEQUENCE { 217 * resultCode ENUMERATED, 218 * matchedDN LDAPDN, 219 * errorMessage LDAPString, 220 * referral [3] Referral OPTIONAL } 221 * 222 * including Bind results: 223 * 224 * BindResponse ::= [APPLICATION 1] SEQUENCE { 225 * COMPONENTS OF LDAPResult, 226 * serverSaslCreds [7] OCTET STRING OPTIONAL } 227 * 228 * and ExtendedOp results: 229 * 230 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE { 231 * COMPONENTS OF LDAPResult, 232 * responseName [10] LDAPOID OPTIONAL, 233 * response [11] OCTET STRING OPTIONAL } 234 * 235 */ 236 int 237 ldap_parse_result( 238 LDAP *ld, 239 LDAPMessage *r, 240 int *errcodep, 241 char **matcheddnp, 242 char **errmsgp, 243 char ***referralsp, 244 LDAPControl ***serverctrls, 245 int freeit ) 246 { 247 LDAPMessage *lm; 248 ber_int_t errcode = LDAP_SUCCESS; 249 250 ber_tag_t tag; 251 BerElement *ber; 252 253 Debug( LDAP_DEBUG_TRACE, "ldap_parse_result\n", 0, 0, 0 ); 254 255 assert( ld != NULL ); 256 assert( LDAP_VALID( ld ) ); 257 assert( r != NULL ); 258 259 if(errcodep != NULL) *errcodep = LDAP_SUCCESS; 260 if(matcheddnp != NULL) *matcheddnp = NULL; 261 if(errmsgp != NULL) *errmsgp = NULL; 262 if(referralsp != NULL) *referralsp = NULL; 263 if(serverctrls != NULL) *serverctrls = NULL; 264 265 LDAP_MUTEX_LOCK( &ld->ld_res_mutex ); 266 /* Find the result, last msg in chain... */ 267 lm = r->lm_chain_tail; 268 /* FIXME: either this is not possible (assert?) 269 * or it should be handled */ 270 if ( lm != NULL ) { 271 switch ( lm->lm_msgtype ) { 272 case LDAP_RES_SEARCH_ENTRY: 273 case LDAP_RES_SEARCH_REFERENCE: 274 case LDAP_RES_INTERMEDIATE: 275 lm = NULL; 276 break; 277 278 default: 279 break; 280 } 281 } 282 283 if( lm == NULL ) { 284 errcode = ld->ld_errno = LDAP_NO_RESULTS_RETURNED; 285 LDAP_MUTEX_UNLOCK( &ld->ld_res_mutex ); 286 goto done; 287 } 288 289 if ( ld->ld_error ) { 290 LDAP_FREE( ld->ld_error ); 291 ld->ld_error = NULL; 292 } 293 if ( ld->ld_matched ) { 294 LDAP_FREE( ld->ld_matched ); 295 ld->ld_matched = NULL; 296 } 297 if ( ld->ld_referrals ) { 298 LDAP_VFREE( ld->ld_referrals ); 299 ld->ld_referrals = NULL; 300 } 301 302 /* parse results */ 303 304 ber = ber_dup( lm->lm_ber ); 305 306 if ( ld->ld_version < LDAP_VERSION2 ) { 307 tag = ber_scanf( ber, "{iA}", 308 &ld->ld_errno, &ld->ld_error ); 309 310 } else { 311 ber_len_t len; 312 313 tag = ber_scanf( ber, "{iAA" /*}*/, 314 &ld->ld_errno, &ld->ld_matched, &ld->ld_error ); 315 316 if( tag != LBER_ERROR ) { 317 /* peek for referrals */ 318 if( ber_peek_tag(ber, &len) == LDAP_TAG_REFERRAL ) { 319 tag = ber_scanf( ber, "v", &ld->ld_referrals ); 320 } 321 } 322 323 /* need to clean out misc items */ 324 if( tag != LBER_ERROR ) { 325 if( lm->lm_msgtype == LDAP_RES_BIND ) { 326 /* look for sasl result creditials */ 327 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SASL_RES_CREDS ) { 328 /* skip 'em */ 329 tag = ber_scanf( ber, "x" ); 330 } 331 332 } else if( lm->lm_msgtype == LDAP_RES_EXTENDED ) { 333 /* look for exop result oid or value */ 334 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_EXOP_RES_OID ) { 335 /* skip 'em */ 336 tag = ber_scanf( ber, "x" ); 337 } 338 339 if ( tag != LBER_ERROR && 340 ber_peek_tag( ber, &len ) == LDAP_TAG_EXOP_RES_VALUE ) 341 { 342 /* skip 'em */ 343 tag = ber_scanf( ber, "x" ); 344 } 345 } 346 } 347 348 if( tag != LBER_ERROR ) { 349 int rc = ldap_pvt_get_controls( ber, serverctrls ); 350 351 if( rc != LDAP_SUCCESS ) { 352 tag = LBER_ERROR; 353 } 354 } 355 356 if( tag != LBER_ERROR ) { 357 tag = ber_scanf( ber, /*{*/"}" ); 358 } 359 } 360 361 if ( tag == LBER_ERROR ) { 362 ld->ld_errno = errcode = LDAP_DECODING_ERROR; 363 } 364 365 if( ber != NULL ) { 366 ber_free( ber, 0 ); 367 } 368 369 /* return */ 370 if( errcodep != NULL ) { 371 *errcodep = ld->ld_errno; 372 } 373 if ( errcode == LDAP_SUCCESS ) { 374 if( matcheddnp != NULL ) { 375 if ( ld->ld_matched ) 376 { 377 *matcheddnp = LDAP_STRDUP( ld->ld_matched ); 378 } 379 } 380 if( errmsgp != NULL ) { 381 if ( ld->ld_error ) 382 { 383 *errmsgp = LDAP_STRDUP( ld->ld_error ); 384 } 385 } 386 387 if( referralsp != NULL) { 388 *referralsp = ldap_value_dup( ld->ld_referrals ); 389 } 390 } 391 LDAP_MUTEX_UNLOCK( &ld->ld_res_mutex ); 392 393 done: 394 if ( freeit ) { 395 ldap_msgfree( r ); 396 } 397 398 return errcode; 399 } 400