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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;
}
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