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Diffstat (limited to '')
| -rw-r--r-- | libraries/libldap/error.c | 398 |
1 files changed, 398 insertions, 0 deletions
diff --git a/libraries/libldap/error.c b/libraries/libldap/error.c new file mode 100644 index 0000000..7052d3a --- /dev/null +++ b/libraries/libldap/error.c @@ -0,0 +1,398 @@ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 1998-2018 The OpenLDAP Foundation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted only as authorized by the OpenLDAP + * Public License. + * + * A copy of this license is available in the file LICENSE in the + * top-level directory of the distribution or, alternatively, at + * <http://www.OpenLDAP.org/license.html>. + */ + +#include "portable.h" + +#include <stdio.h> + +#include <ac/stdlib.h> + +#include <ac/socket.h> +#include <ac/string.h> +#include <ac/time.h> + +#include "ldap-int.h" + +void ldap_int_error_init( void ) { +} + +char * +ldap_err2string( int err ) +{ + char *m; + + Debug( LDAP_DEBUG_TRACE, "ldap_err2string\n", 0, 0, 0 ); + + switch ( err ) { +# define C(code, message) case code: m = message; break + + /* LDAPv3 (RFC 4511) codes */ + C(LDAP_SUCCESS, N_("Success")); + C(LDAP_OPERATIONS_ERROR, N_("Operations error")); + C(LDAP_PROTOCOL_ERROR, N_("Protocol error")); + C(LDAP_TIMELIMIT_EXCEEDED, N_("Time limit exceeded")); + C(LDAP_SIZELIMIT_EXCEEDED, N_("Size limit exceeded")); + C(LDAP_COMPARE_FALSE, N_("Compare False")); + C(LDAP_COMPARE_TRUE, N_("Compare True")); + C(LDAP_STRONG_AUTH_NOT_SUPPORTED,N_("Authentication method not supported")); + C(LDAP_STRONG_AUTH_REQUIRED, N_("Strong(er) authentication required")); + + C(LDAP_REFERRAL, N_("Referral")); + C(LDAP_ADMINLIMIT_EXCEEDED, N_("Administrative limit exceeded")); + C(LDAP_UNAVAILABLE_CRITICAL_EXTENSION, + N_("Critical extension is unavailable")); + C(LDAP_CONFIDENTIALITY_REQUIRED,N_("Confidentiality required")); + C(LDAP_SASL_BIND_IN_PROGRESS, N_("SASL bind in progress")); + + C(LDAP_NO_SUCH_ATTRIBUTE, N_("No such attribute")); + C(LDAP_UNDEFINED_TYPE, N_("Undefined attribute type")); + C(LDAP_INAPPROPRIATE_MATCHING, N_("Inappropriate matching")); + C(LDAP_CONSTRAINT_VIOLATION, N_("Constraint violation")); + C(LDAP_TYPE_OR_VALUE_EXISTS, N_("Type or value exists")); + C(LDAP_INVALID_SYNTAX, N_("Invalid syntax")); + + C(LDAP_NO_SUCH_OBJECT, N_("No such object")); + C(LDAP_ALIAS_PROBLEM, N_("Alias problem")); + C(LDAP_INVALID_DN_SYNTAX, N_("Invalid DN syntax")); + + C(LDAP_ALIAS_DEREF_PROBLEM, N_("Alias dereferencing problem")); + + C(LDAP_INAPPROPRIATE_AUTH, N_("Inappropriate authentication")); + C(LDAP_INVALID_CREDENTIALS, N_("Invalid credentials")); + C(LDAP_INSUFFICIENT_ACCESS, N_("Insufficient access")); + C(LDAP_BUSY, N_("Server is busy")); + C(LDAP_UNAVAILABLE, N_("Server is unavailable")); + C(LDAP_UNWILLING_TO_PERFORM, N_("Server is unwilling to perform")); + C(LDAP_LOOP_DETECT, N_("Loop detected")); + + C(LDAP_NAMING_VIOLATION, N_("Naming violation")); + C(LDAP_OBJECT_CLASS_VIOLATION, N_("Object class violation")); + C(LDAP_NOT_ALLOWED_ON_NONLEAF, N_("Operation not allowed on non-leaf")); + C(LDAP_NOT_ALLOWED_ON_RDN, N_("Operation not allowed on RDN")); + C(LDAP_ALREADY_EXISTS, N_("Already exists")); + C(LDAP_NO_OBJECT_CLASS_MODS, N_("Cannot modify object class")); + + C(LDAP_AFFECTS_MULTIPLE_DSAS, N_("Operation affects multiple DSAs")); + + /* Virtual List View draft */ + C(LDAP_VLV_ERROR, N_("Virtual List View error")); + + C(LDAP_OTHER, N_("Other (e.g., implementation specific) error")); + + /* LDAPv2 (RFC 1777) codes */ + C(LDAP_PARTIAL_RESULTS, N_("Partial results and referral received")); + C(LDAP_IS_LEAF, N_("Entry is a leaf")); + + /* Connection-less LDAP (CLDAP - RFC 1798) code */ + C(LDAP_RESULTS_TOO_LARGE, N_("Results too large")); + + /* Cancel Operation (RFC 3909) codes */ + C(LDAP_CANCELLED, N_("Cancelled")); + C(LDAP_NO_SUCH_OPERATION, N_("No Operation to Cancel")); + C(LDAP_TOO_LATE, N_("Too Late to Cancel")); + C(LDAP_CANNOT_CANCEL, N_("Cannot Cancel")); + + /* Assert Control (RFC 4528 and old internet-draft) codes */ + C(LDAP_ASSERTION_FAILED, N_("Assertion Failed")); + C(LDAP_X_ASSERTION_FAILED, N_("Assertion Failed (X)")); + + /* Proxied Authorization Control (RFC 4370 and I-D) codes */ + C(LDAP_PROXIED_AUTHORIZATION_DENIED, N_("Proxied Authorization Denied")); + C(LDAP_X_PROXY_AUTHZ_FAILURE, N_("Proxy Authorization Failure (X)")); + + /* Content Sync Operation (RFC 4533 and I-D) codes */ + C(LDAP_SYNC_REFRESH_REQUIRED, N_("Content Sync Refresh Required")); + C(LDAP_X_SYNC_REFRESH_REQUIRED, N_("Content Sync Refresh Required (X)")); + + /* No-Op Control (draft-zeilenga-ldap-noop) code */ + C(LDAP_X_NO_OPERATION, N_("No Operation (X)")); + + /* Client Update Protocol (RFC 3928) codes */ + C(LDAP_CUP_RESOURCES_EXHAUSTED, N_("LCUP Resources Exhausted")); + C(LDAP_CUP_SECURITY_VIOLATION, N_("LCUP Security Violation")); + C(LDAP_CUP_INVALID_DATA, N_("LCUP Invalid Data")); + C(LDAP_CUP_UNSUPPORTED_SCHEME, N_("LCUP Unsupported Scheme")); + C(LDAP_CUP_RELOAD_REQUIRED, N_("LCUP Reload Required")); + +#ifdef LDAP_X_TXN + /* Codes related to LDAP Transactions (draft-zeilenga-ldap-txn) */ + C(LDAP_X_TXN_SPECIFY_OKAY, N_("TXN specify okay")); + C(LDAP_X_TXN_ID_INVALID, N_("TXN ID is invalid")); +#endif + + /* API codes - renumbered since draft-ietf-ldapext-ldap-c-api */ + C(LDAP_SERVER_DOWN, N_("Can't contact LDAP server")); + C(LDAP_LOCAL_ERROR, N_("Local error")); + C(LDAP_ENCODING_ERROR, N_("Encoding error")); + C(LDAP_DECODING_ERROR, N_("Decoding error")); + C(LDAP_TIMEOUT, N_("Timed out")); + C(LDAP_AUTH_UNKNOWN, N_("Unknown authentication method")); + C(LDAP_FILTER_ERROR, N_("Bad search filter")); + C(LDAP_USER_CANCELLED, N_("User cancelled operation")); + C(LDAP_PARAM_ERROR, N_("Bad parameter to an ldap routine")); + C(LDAP_NO_MEMORY, N_("Out of memory")); + C(LDAP_CONNECT_ERROR, N_("Connect error")); + C(LDAP_NOT_SUPPORTED, N_("Not Supported")); + C(LDAP_CONTROL_NOT_FOUND, N_("Control not found")); + C(LDAP_NO_RESULTS_RETURNED, N_("No results returned")); + C(LDAP_MORE_RESULTS_TO_RETURN, N_("More results to return")); + C(LDAP_CLIENT_LOOP, N_("Client Loop")); + C(LDAP_REFERRAL_LIMIT_EXCEEDED, N_("Referral Limit Exceeded")); + C(LDAP_X_CONNECTING, N_("Connecting (X)")); +# undef C + + default: + m = (LDAP_API_ERROR(err) ? N_("Unknown API error") + : LDAP_E_ERROR(err) ? N_("Unknown (extension) error") + : LDAP_X_ERROR(err) ? N_("Unknown (private extension) error") + : N_("Unknown error")); + break; + } + + return _(m); +} + +/* deprecated */ +void +ldap_perror( LDAP *ld, LDAP_CONST char *str ) +{ + int i; + + assert( ld != NULL ); + assert( LDAP_VALID( ld ) ); + assert( str != NULL ); + + fprintf( stderr, "%s: %s (%d)\n", + str ? str : "ldap_perror", + ldap_err2string( ld->ld_errno ), + ld->ld_errno ); + + if ( ld->ld_matched != NULL && ld->ld_matched[0] != '\0' ) { + fprintf( stderr, _("\tmatched DN: %s\n"), ld->ld_matched ); + } + + if ( ld->ld_error != NULL && ld->ld_error[0] != '\0' ) { + fprintf( stderr, _("\tadditional info: %s\n"), ld->ld_error ); + } + + if ( ld->ld_referrals != NULL && ld->ld_referrals[0] != NULL) { + fprintf( stderr, _("\treferrals:\n") ); + for (i=0; ld->ld_referrals[i]; i++) { + fprintf( stderr, _("\t\t%s\n"), ld->ld_referrals[i] ); + } + } + + fflush( stderr ); +} + +/* deprecated */ +int +ldap_result2error( LDAP *ld, LDAPMessage *r, int freeit ) +{ + int rc, err; + + rc = ldap_parse_result( ld, r, &err, + NULL, NULL, NULL, NULL, freeit ); + + return err != LDAP_SUCCESS ? err : rc; +} + +/* + * Parse LDAPResult Messages: + * + * LDAPResult ::= SEQUENCE { + * resultCode ENUMERATED, + * matchedDN LDAPDN, + * errorMessage LDAPString, + * referral [3] Referral OPTIONAL } + * + * including Bind results: + * + * BindResponse ::= [APPLICATION 1] SEQUENCE { + * COMPONENTS OF LDAPResult, + * serverSaslCreds [7] OCTET STRING OPTIONAL } + * + * and ExtendedOp results: + * + * ExtendedResponse ::= [APPLICATION 24] SEQUENCE { + * COMPONENTS OF LDAPResult, + * responseName [10] LDAPOID OPTIONAL, + * response [11] OCTET STRING OPTIONAL } + * + */ +int +ldap_parse_result( + LDAP *ld, + LDAPMessage *r, + int *errcodep, + char **matcheddnp, + char **errmsgp, + char ***referralsp, + LDAPControl ***serverctrls, + int freeit ) +{ + LDAPMessage *lm; + ber_int_t errcode = LDAP_SUCCESS; + + ber_tag_t tag; + BerElement *ber; + + Debug( LDAP_DEBUG_TRACE, "ldap_parse_result\n", 0, 0, 0 ); + + assert( ld != NULL ); + assert( LDAP_VALID( ld ) ); + assert( r != NULL ); + + if(errcodep != NULL) *errcodep = LDAP_SUCCESS; + if(matcheddnp != NULL) *matcheddnp = NULL; + if(errmsgp != NULL) *errmsgp = NULL; + if(referralsp != NULL) *referralsp = NULL; + if(serverctrls != NULL) *serverctrls = NULL; + + LDAP_MUTEX_LOCK( &ld->ld_res_mutex ); + /* Find the result, last msg in chain... */ + lm = r->lm_chain_tail; + /* FIXME: either this is not possible (assert?) + * or it should be handled */ + if ( lm != NULL ) { + switch ( lm->lm_msgtype ) { + case LDAP_RES_SEARCH_ENTRY: + case LDAP_RES_SEARCH_REFERENCE: + case LDAP_RES_INTERMEDIATE: + lm = NULL; + break; + + default: + break; + } + } + + if( lm == NULL ) { + errcode = ld->ld_errno = LDAP_NO_RESULTS_RETURNED; + LDAP_MUTEX_UNLOCK( &ld->ld_res_mutex ); + goto done; + } + + if ( ld->ld_error ) { + LDAP_FREE( ld->ld_error ); + ld->ld_error = NULL; + } + if ( ld->ld_matched ) { + LDAP_FREE( ld->ld_matched ); + ld->ld_matched = NULL; + } + if ( ld->ld_referrals ) { + LDAP_VFREE( ld->ld_referrals ); + ld->ld_referrals = NULL; + } + + /* parse results */ + + ber = ber_dup( lm->lm_ber ); + + if ( ld->ld_version < LDAP_VERSION2 ) { + tag = ber_scanf( ber, "{iA}", + &ld->ld_errno, &ld->ld_error ); + + } else { + ber_len_t len; + + tag = ber_scanf( ber, "{iAA" /*}*/, + &ld->ld_errno, &ld->ld_matched, &ld->ld_error ); + + if( tag != LBER_ERROR ) { + /* peek for referrals */ + if( ber_peek_tag(ber, &len) == LDAP_TAG_REFERRAL ) { + tag = ber_scanf( ber, "v", &ld->ld_referrals ); + } + } + + /* need to clean out misc items */ + if( tag != LBER_ERROR ) { + if( lm->lm_msgtype == LDAP_RES_BIND ) { + /* look for sasl result creditials */ + if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SASL_RES_CREDS ) { + /* skip 'em */ + tag = ber_scanf( ber, "x" ); + } + + } else if( lm->lm_msgtype == LDAP_RES_EXTENDED ) { + /* look for exop result oid or value */ + if ( ber_peek_tag( ber, &len ) == LDAP_TAG_EXOP_RES_OID ) { + /* skip 'em */ + tag = ber_scanf( ber, "x" ); + } + + if ( tag != LBER_ERROR && + ber_peek_tag( ber, &len ) == LDAP_TAG_EXOP_RES_VALUE ) + { + /* skip 'em */ + tag = ber_scanf( ber, "x" ); + } + } + } + + if( tag != LBER_ERROR ) { + int rc = ldap_pvt_get_controls( ber, serverctrls ); + + if( rc != LDAP_SUCCESS ) { + tag = LBER_ERROR; + } + } + + if( tag != LBER_ERROR ) { + tag = ber_scanf( ber, /*{*/"}" ); + } + } + + if ( tag == LBER_ERROR ) { + ld->ld_errno = errcode = LDAP_DECODING_ERROR; + } + + if( ber != NULL ) { + ber_free( ber, 0 ); + } + + /* return */ + if( errcodep != NULL ) { + *errcodep = ld->ld_errno; + } + if ( errcode == LDAP_SUCCESS ) { + if( matcheddnp != NULL ) { + if ( ld->ld_matched ) + { + *matcheddnp = LDAP_STRDUP( ld->ld_matched ); + } + } + if( errmsgp != NULL ) { + if ( ld->ld_error ) + { + *errmsgp = LDAP_STRDUP( ld->ld_error ); + } + } + + if( referralsp != NULL) { + *referralsp = ldap_value_dup( ld->ld_referrals ); + } + } + LDAP_MUTEX_UNLOCK( &ld->ld_res_mutex ); + +done: + if ( freeit ) { + ldap_msgfree( r ); + } + + return errcode; +} |