1 /* $NetBSD: modrdn.c,v 1.3 2021/08/14 16:14:59 christos 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 1999-2021 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 <sys/cdefs.h>
27 __RCSID("$NetBSD: modrdn.c,v 1.3 2021/08/14 16:14:59 christos Exp $");
28
29 #include "portable.h"
30
31 #include <stdio.h>
32
33 #include <ac/socket.h>
34 #include <ac/string.h>
35
36 #include "slap.h"
37 #include "back-ldap.h"
38
39 int
ldap_back_modrdn(Operation * op,SlapReply * rs)40 ldap_back_modrdn(
41 Operation *op,
42 SlapReply *rs )
43 {
44 ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
45
46 ldapconn_t *lc = NULL;
47 ber_int_t msgid;
48 LDAPControl **ctrls = NULL;
49 ldap_back_send_t retrying = LDAP_BACK_RETRYING;
50 int rc = LDAP_SUCCESS;
51 char *newSup = NULL;
52 struct berval newrdn = BER_BVNULL;
53
54 if ( !ldap_back_dobind( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
55 return rs->sr_err;
56 }
57
58 if ( op->orr_newSup ) {
59 /* needs LDAPv3 */
60 switch ( li->li_version ) {
61 case LDAP_VERSION3:
62 break;
63
64 case 0:
65 if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) {
66 break;
67 }
68 /* fall thru */
69
70 default:
71 /* op->o_protocol cannot be anything but LDAPv3,
72 * otherwise wouldn't be here */
73 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
74 send_ldap_result( op, rs );
75 goto cleanup;
76 }
77
78 newSup = op->orr_newSup->bv_val;
79 }
80
81 /* NOTE: we need to copy the newRDN in case it was formed
82 * from a DN by simply changing the length (ITS#5397) */
83 newrdn = op->orr_newrdn;
84 if ( newrdn.bv_val[ newrdn.bv_len ] != '\0' ) {
85 ber_dupbv_x( &newrdn, &op->orr_newrdn, op->o_tmpmemctx );
86 }
87
88 retry:
89 ctrls = op->o_ctrls;
90 rc = ldap_back_controls_add( op, rs, lc, &ctrls );
91 if ( rc != LDAP_SUCCESS ) {
92 send_ldap_result( op, rs );
93 goto cleanup;
94 }
95
96 rs->sr_err = ldap_rename( lc->lc_ld, op->o_req_dn.bv_val,
97 newrdn.bv_val, newSup,
98 op->orr_deleteoldrdn, ctrls, NULL, &msgid );
99 rc = ldap_back_op_result( lc, op, rs, msgid,
100 li->li_timeout[ SLAP_OP_MODRDN ],
101 ( LDAP_BACK_SENDRESULT | retrying ) );
102 if ( rs->sr_err == LDAP_UNAVAILABLE && retrying ) {
103 retrying &= ~LDAP_BACK_RETRYING;
104 if ( ldap_back_retry( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
105 /* if the identity changed, there might be need to re-authz */
106 (void)ldap_back_controls_free( op, rs, &ctrls );
107 goto retry;
108 }
109 }
110
111 ldap_pvt_thread_mutex_lock( &li->li_counter_mutex );
112 ldap_pvt_mp_add( li->li_ops_completed[ SLAP_OP_MODRDN ], 1 );
113 ldap_pvt_thread_mutex_unlock( &li->li_counter_mutex );
114
115 cleanup:
116 (void)ldap_back_controls_free( op, rs, &ctrls );
117
118 if ( newrdn.bv_val != op->orr_newrdn.bv_val ) {
119 op->o_tmpfree( newrdn.bv_val, op->o_tmpmemctx );
120 }
121
122 if ( lc != NULL ) {
123 ldap_back_release_conn( li, lc );
124 }
125
126 return rs->sr_err;
127 }
128
129