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-rw-r--r--servers/slapd/back-ndb/bind.cpp165
1 files changed, 165 insertions, 0 deletions
diff --git a/servers/slapd/back-ndb/bind.cpp b/servers/slapd/back-ndb/bind.cpp
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--- /dev/null
+++ b/servers/slapd/back-ndb/bind.cpp
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+/* bind.cpp - ndb backend bind routine */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2008-2022 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 <ac/unistd.h>
+
+#include "back-ndb.h"
+
+extern "C" int
+ndb_back_bind( Operation *op, SlapReply *rs )
+{
+ struct ndb_info *ni = (struct ndb_info *) op->o_bd->be_private;
+ Entry e = {0};
+ Attribute *a;
+
+ AttributeDescription *password = slap_schema.si_ad_userPassword;
+
+ NdbArgs NA;
+
+ Debug( LDAP_DEBUG_ARGS,
+ "==> " LDAP_XSTRING(ndb_back_bind) ": dn: %s\n",
+ op->o_req_dn.bv_val, 0, 0);
+
+ /* allow noauth binds */
+ switch ( be_rootdn_bind( op, NULL ) ) {
+ case LDAP_SUCCESS:
+ /* frontend will send result */
+ return rs->sr_err = LDAP_SUCCESS;
+
+ default:
+ /* give the database a chance */
+ break;
+ }
+
+ /* Get our NDB handle */
+ rs->sr_err = ndb_thread_handle( op, &NA.ndb );
+
+ 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_back_bind) ": 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 done;
+ }
+
+ /* get entry */
+ {
+ NdbRdns rdns;
+ rdns.nr_num = 0;
+ NA.rdns = &rdns;
+ NA.ocs = NULL;
+ rs->sr_err = ndb_entry_get_info( op, &NA, 0, NULL );
+ }
+ switch(rs->sr_err) {
+ case 0:
+ break;
+ case LDAP_NO_SUCH_OBJECT:
+ rs->sr_err = LDAP_INVALID_CREDENTIALS;
+ goto done;
+ case LDAP_BUSY:
+ rs->sr_text = "ldap_server_busy";
+ goto done;
+#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 done;
+ }
+
+ rs->sr_err = ndb_entry_get_data( op, &NA, 0 );
+ ber_bvarray_free_x( NA.ocs, op->o_tmpmemctx );
+ ber_dupbv( &op->oq_bind.rb_edn, &e.e_name );
+
+ /* check for deleted */
+ if ( is_entry_subentry( &e ) ) {
+ /* entry is an subentry, don't allow bind */
+ Debug( LDAP_DEBUG_TRACE, "entry is subentry\n", 0,
+ 0, 0 );
+ rs->sr_err = LDAP_INVALID_CREDENTIALS;
+ goto done;
+ }
+
+ if ( is_entry_alias( &e ) ) {
+ /* entry is an alias, don't allow bind */
+ Debug( LDAP_DEBUG_TRACE, "entry is alias\n", 0, 0, 0 );
+ rs->sr_err = LDAP_INVALID_CREDENTIALS;
+ goto done;
+ }
+
+ if ( is_entry_referral( &e ) ) {
+ Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
+ 0, 0 );
+ rs->sr_err = LDAP_INVALID_CREDENTIALS;
+ goto done;
+ }
+
+ switch ( op->oq_bind.rb_method ) {
+ case LDAP_AUTH_SIMPLE:
+ a = attr_find( e.e_attrs, password );
+ if ( a == NULL ) {
+ rs->sr_err = LDAP_INVALID_CREDENTIALS;
+ goto done;
+ }
+
+ if ( slap_passwd_check( op, &e, a, &op->oq_bind.rb_cred,
+ &rs->sr_text ) != 0 )
+ {
+ /* failure; stop front end from sending result */
+ rs->sr_err = LDAP_INVALID_CREDENTIALS;
+ goto done;
+ }
+
+ rs->sr_err = 0;
+ break;
+
+ default:
+ assert( 0 ); /* should not be reachable */
+ rs->sr_err = LDAP_STRONG_AUTH_NOT_SUPPORTED;
+ rs->sr_text = "authentication method not supported";
+ }
+
+done:
+ NA.txn->close();
+ if ( e.e_attrs ) {
+ attrs_free( e.e_attrs );
+ e.e_attrs = NULL;
+ }
+ if ( rs->sr_err ) {
+ send_ldap_result( op, rs );
+ }
+ /* front end will send result on success (rs->sr_err==0) */
+ return rs->sr_err;
+}