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https://git.openldap.org/openldap/openldap.git
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182 lines
4.0 KiB
C
182 lines
4.0 KiB
C
/* bind.c - bdb backend bind routine */
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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 2000-2007 The OpenLDAP Foundation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
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#include <ac/unistd.h>
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#include "back-bdb.h"
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int
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bdb_bind( Operation *op, SlapReply *rs )
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{
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struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
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Entry *e;
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Attribute *a;
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EntryInfo *ei;
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AttributeDescription *password = slap_schema.si_ad_userPassword;
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BDB_LOCKER locker;
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DB_LOCK lock;
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Debug( LDAP_DEBUG_ARGS,
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"==> " LDAP_XSTRING(bdb_bind) ": dn: %s\n",
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op->o_req_dn.bv_val, 0, 0);
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#ifdef LDAP_DEVEL
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/* allow noauth binds */
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switch ( be_rootdn_bind( op, rs ) ) {
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case SLAP_CB_CONTINUE:
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break;
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default:
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/* in case of success, frontend will send result;
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* otherwise, be_rootdn_bind() did */
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return rs->sr_err;
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}
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#else /* traditional */
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/* allow noauth binds */
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switch ( be_rootdn_bind( op, NULL ) ) {
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case LDAP_SUCCESS:
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/* frontend will send result */
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return rs->sr_err;
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default:
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/* give the database a chanche */
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break;
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}
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#endif /* traditional */
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rs->sr_err = LOCK_ID(bdb->bi_dbenv, &locker);
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switch(rs->sr_err) {
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case 0:
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break;
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default:
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rs->sr_text = "internal error";
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send_ldap_result( op, rs );
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return rs->sr_err;
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}
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dn2entry_retry:
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/* get entry with reader lock */
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rs->sr_err = bdb_dn2entry( op, NULL, &op->o_req_ndn, &ei, 1,
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locker, &lock );
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switch(rs->sr_err) {
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case DB_NOTFOUND:
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case 0:
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break;
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case LDAP_BUSY:
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send_ldap_error( op, rs, LDAP_BUSY, "ldap_server_busy" );
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LOCK_ID_FREE(bdb->bi_dbenv, locker);
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return LDAP_BUSY;
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto dn2entry_retry;
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default:
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send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
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LOCK_ID_FREE(bdb->bi_dbenv, locker);
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return rs->sr_err;
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}
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e = ei->bei_e;
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if ( rs->sr_err == DB_NOTFOUND ) {
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if( e != NULL ) {
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bdb_cache_return_entry_r( bdb, e, &lock );
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e = NULL;
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}
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rs->sr_err = LDAP_INVALID_CREDENTIALS;
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send_ldap_result( op, rs );
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LOCK_ID_FREE(bdb->bi_dbenv, locker);
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return rs->sr_err;
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}
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ber_dupbv( &op->oq_bind.rb_edn, &e->e_name );
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/* check for deleted */
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if ( is_entry_subentry( e ) ) {
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/* entry is an subentry, don't allow bind */
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Debug( LDAP_DEBUG_TRACE, "entry is subentry\n", 0,
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0, 0 );
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rs->sr_err = LDAP_INVALID_CREDENTIALS;
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goto done;
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}
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if ( is_entry_alias( e ) ) {
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/* entry is an alias, don't allow bind */
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Debug( LDAP_DEBUG_TRACE, "entry is alias\n", 0, 0, 0 );
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rs->sr_err = LDAP_INVALID_CREDENTIALS;
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goto done;
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}
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if ( is_entry_referral( e ) ) {
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Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
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0, 0 );
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rs->sr_err = LDAP_INVALID_CREDENTIALS;
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goto done;
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}
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switch ( op->oq_bind.rb_method ) {
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case LDAP_AUTH_SIMPLE:
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a = attr_find( e->e_attrs, password );
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if ( a == NULL ) {
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rs->sr_err = LDAP_INVALID_CREDENTIALS;
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goto done;
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}
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if ( slap_passwd_check( op, e, a, &op->oq_bind.rb_cred,
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&rs->sr_text ) != 0 )
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{
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/* failure; stop front end from sending result */
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rs->sr_err = LDAP_INVALID_CREDENTIALS;
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goto done;
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}
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rs->sr_err = 0;
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break;
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default:
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assert( 0 ); /* should not be reachable */
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rs->sr_err = LDAP_STRONG_AUTH_NOT_SUPPORTED;
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rs->sr_text = "authentication method not supported";
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}
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done:
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/* free entry and reader lock */
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if( e != NULL ) {
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bdb_cache_return_entry_r( bdb, e, &lock );
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}
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LOCK_ID_FREE(bdb->bi_dbenv, locker);
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if ( rs->sr_err ) {
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send_ldap_result( op, rs );
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if ( rs->sr_ref ) {
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ber_bvarray_free( rs->sr_ref );
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rs->sr_ref = NULL;
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}
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}
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/* front end will send result on success (rs->sr_err==0) */
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return rs->sr_err;
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}
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