diff options
Diffstat (limited to 'servers/slapd/back-ndb/compare.cpp')
| -rw-r--r-- | servers/slapd/back-ndb/compare.cpp | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/servers/slapd/back-ndb/compare.cpp b/servers/slapd/back-ndb/compare.cpp new file mode 100644 index 0000000..0ccaef2 --- /dev/null +++ b/servers/slapd/back-ndb/compare.cpp @@ -0,0 +1,169 @@ +/* compare.cpp - ndb backend compare routine */ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 2008-2018 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>. + */ +/* ACKNOWLEDGEMENTS: + * This work was initially developed by Howard Chu for inclusion + * in OpenLDAP Software. This work was sponsored by MySQL. + */ + +#include "portable.h" + +#include <stdio.h> +#include <ac/string.h> + +#include "back-ndb.h" + +int +ndb_back_compare( Operation *op, SlapReply *rs ) +{ + struct ndb_info *ni = (struct ndb_info *) op->o_bd->be_private; + Entry e = {0}; + Attribute *a; + int manageDSAit = get_manageDSAit( op ); + + NdbArgs NA; + NdbRdns rdns; + struct berval matched; + + /* Get our NDB handle */ + rs->sr_err = ndb_thread_handle( op, &NA.ndb ); + + rdns.nr_num = 0; + NA.rdns = &rdns; + e.e_name = op->o_req_dn; + e.e_nname = op->o_req_ndn; + NA.e = &e; + +dn2entry_retry: + NA.txn = NA.ndb->startTransaction(); + rs->sr_text = NULL; + if( !NA.txn ) { + Debug( LDAP_DEBUG_TRACE, + LDAP_XSTRING(ndb_compare) ": startTransaction failed: %s (%d)\n", + NA.ndb->getNdbError().message, NA.ndb->getNdbError().code, 0 ); + rs->sr_err = LDAP_OTHER; + rs->sr_text = "internal error"; + goto return_results; + } + + NA.ocs = NULL; + /* get entry */ + rs->sr_err = ndb_entry_get_info( op, &NA, 0, &matched ); + switch( rs->sr_err ) { + case 0: + break; + case LDAP_NO_SUCH_OBJECT: + rs->sr_matched = matched.bv_val; + if ( NA.ocs ) + ndb_check_referral( op, rs, &NA ); + goto return_results; + case LDAP_BUSY: + rs->sr_text = "ldap server busy"; + goto return_results; +#if 0 + case DB_LOCK_DEADLOCK: + case DB_LOCK_NOTGRANTED: + goto dn2entry_retry; +#endif + default: + rs->sr_err = LDAP_OTHER; + rs->sr_text = "internal error"; + goto return_results; + } + + rs->sr_err = ndb_entry_get_data( op, &NA, 0 ); + ber_bvarray_free_x( NA.ocs, op->o_tmpmemctx ); + if (!manageDSAit && is_entry_referral( &e ) ) { + /* return referral only if "disclose" is granted on the object */ + if ( !access_allowed( op, &e, slap_schema.si_ad_entry, + NULL, ACL_DISCLOSE, NULL ) ) + { + rs->sr_err = LDAP_NO_SUCH_OBJECT; + } else { + /* entry is a referral, don't allow compare */ + rs->sr_ref = get_entry_referrals( op, &e ); + rs->sr_err = LDAP_REFERRAL; + rs->sr_matched = e.e_name.bv_val; + rs->sr_flags |= REP_REF_MUSTBEFREED; + } + + Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0, 0, 0 ); + goto return_results; + } + + if ( get_assert( op ) && + ( test_filter( op, &e, (Filter *)get_assertion( op )) != LDAP_COMPARE_TRUE )) + { + if ( !access_allowed( op, &e, slap_schema.si_ad_entry, + NULL, ACL_DISCLOSE, NULL ) ) + { + rs->sr_err = LDAP_NO_SUCH_OBJECT; + } else { + rs->sr_err = LDAP_ASSERTION_FAILED; + } + goto return_results; + } + + if ( !access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc, + &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL ) ) + { + /* return error only if "disclose" + * is granted on the object */ + if ( !access_allowed( op, &e, slap_schema.si_ad_entry, + NULL, ACL_DISCLOSE, NULL ) ) + { + rs->sr_err = LDAP_NO_SUCH_OBJECT; + } else { + rs->sr_err = LDAP_INSUFFICIENT_ACCESS; + } + goto return_results; + } + + rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE; + + for ( a = attrs_find( e.e_attrs, op->oq_compare.rs_ava->aa_desc ); + a != NULL; + a = attrs_find( a->a_next, op->oq_compare.rs_ava->aa_desc ) ) + { + rs->sr_err = LDAP_COMPARE_FALSE; + + if ( attr_valfind( a, + SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH | + SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH, + &op->oq_compare.rs_ava->aa_value, NULL, + op->o_tmpmemctx ) == 0 ) + { + rs->sr_err = LDAP_COMPARE_TRUE; + break; + } + } + +return_results: + NA.txn->close(); + if ( e.e_attrs ) { + attrs_free( e.e_attrs ); + e.e_attrs = NULL; + } + send_ldap_result( op, rs ); + + switch ( rs->sr_err ) { + case LDAP_COMPARE_FALSE: + case LDAP_COMPARE_TRUE: + rs->sr_err = LDAP_SUCCESS; + break; + } + + return rs->sr_err; +} |