modrdn.c revision 1.1.1.4 
1/*	$NetBSD: modrdn.c,v 1.1.1.4 2014/05/28 09:58:49 tron Exp $	*/
2
3/* modrdn.c - ldap backend modrdn function */
4/* $OpenLDAP$ */
5/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
6 *
7 * Copyright 1999-2014 The OpenLDAP Foundation.
8 * Portions Copyright 1999-2003 Howard Chu.
9 * Portions Copyright 2000-2003 Pierangelo Masarati.
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted only as authorized by the OpenLDAP
14 * Public License.
15 *
16 * A copy of this license is available in the file LICENSE in the
17 * top-level directory of the distribution or, alternatively, at
18 * <http://www.OpenLDAP.org/license.html>.
19 */
20/* ACKNOWLEDGEMENTS:
21 * This work was initially developed by the Howard Chu for inclusion
22 * in OpenLDAP Software and subsequently enhanced by Pierangelo
23 * Masarati.
24 */
25
26#include "portable.h"
27
28#include <stdio.h>
29
30#include <ac/socket.h>
31#include <ac/string.h>
32
33#include "slap.h"
34#include "back-ldap.h"
35
36int
37ldap_back_modrdn(
38		Operation	*op,
39 		SlapReply	*rs )
40{
41	ldapinfo_t		*li = (ldapinfo_t *)op->o_bd->be_private;
42
43	ldapconn_t		*lc = NULL;
44	ber_int_t		msgid;
45	LDAPControl		**ctrls = NULL;
46	ldap_back_send_t	retrying = LDAP_BACK_RETRYING;
47	int			rc = LDAP_SUCCESS;
48	char			*newSup = NULL;
49	struct berval		newrdn = BER_BVNULL;
50
51	if ( !ldap_back_dobind( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
52		return rs->sr_err;
53	}
54
55	if ( op->orr_newSup ) {
56		/* needs LDAPv3 */
57		switch ( li->li_version ) {
58		case LDAP_VERSION3:
59			break;
60
61		case 0:
62			if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) {
63				break;
64			}
65			/* fall thru */
66
67		default:
68			/* op->o_protocol cannot be anything but LDAPv3,
69			 * otherwise wouldn't be here */
70			rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
71			send_ldap_result( op, rs );
72			goto cleanup;
73		}
74
75		newSup = op->orr_newSup->bv_val;
76	}
77
78	/* NOTE: we need to copy the newRDN in case it was formed
79	 * from a DN by simply changing the length (ITS#5397) */
80	newrdn = op->orr_newrdn;
81	if ( newrdn.bv_val[ newrdn.bv_len ] != '\0' ) {
82		ber_dupbv_x( &newrdn, &op->orr_newrdn, op->o_tmpmemctx );
83	}
84
85retry:
86	ctrls = op->o_ctrls;
87	rc = ldap_back_controls_add( op, rs, lc, &ctrls );
88	if ( rc != LDAP_SUCCESS ) {
89		send_ldap_result( op, rs );
90		rc = -1;
91		goto cleanup;
92	}
93
94	rs->sr_err = ldap_rename( lc->lc_ld, op->o_req_dn.bv_val,
95			newrdn.bv_val, newSup,
96			op->orr_deleteoldrdn, ctrls, NULL, &msgid );
97	rc = ldap_back_op_result( lc, op, rs, msgid,
98		li->li_timeout[ SLAP_OP_MODRDN ],
99		( LDAP_BACK_SENDRESULT | retrying ) );
100	if ( rs->sr_err == LDAP_UNAVAILABLE && retrying ) {
101		retrying &= ~LDAP_BACK_RETRYING;
102		if ( ldap_back_retry( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
103			/* if the identity changed, there might be need to re-authz */
104			(void)ldap_back_controls_free( op, rs, &ctrls );
105			goto retry;
106		}
107	}
108
109	ldap_pvt_thread_mutex_lock( &li->li_counter_mutex );
110	ldap_pvt_mp_add( li->li_ops_completed[ SLAP_OP_MODRDN ], 1 );
111	ldap_pvt_thread_mutex_unlock( &li->li_counter_mutex );
112
113cleanup:
114	(void)ldap_back_controls_free( op, rs, &ctrls );
115
116	if ( newrdn.bv_val != op->orr_newrdn.bv_val ) {
117		op->o_tmpfree( newrdn.bv_val, op->o_tmpmemctx );
118	}
119
120	if ( lc != NULL ) {
121		ldap_back_release_conn( li, lc );
122	}
123
124	return rc;
125}
126
127