git.sur5r.net Git - openldap/blob - servers/slapd/back-ldap/modrdn.c

   1 /* modrdn.c - ldap backend modrdn function */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1999-2018 The OpenLDAP Foundation.
   6  * Portions Copyright 1999-2003 Howard Chu.
   7  * Portions Copyright 2000-2003 Pierangelo Masarati.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18 /* ACKNOWLEDGEMENTS:
  19  * This work was initially developed by the Howard Chu for inclusion
  20  * in OpenLDAP Software and subsequently enhanced by Pierangelo
  21  * Masarati.
  22  */
  23
  24 #include "portable.h"
  25
  26 #include <stdio.h>
  27
  28 #include <ac/socket.h>
  29 #include <ac/string.h>
  30
  31 #include "slap.h"
  32 #include "back-ldap.h"
  33
  34 int
  35 ldap_back_modrdn(
  36                 Operation       *op,
  37                 SlapReply       *rs )
  38 {
  39         ldapinfo_t              *li = (ldapinfo_t *)op->o_bd->be_private;
  40
  41         ldapconn_t              *lc = NULL;
  42         ber_int_t               msgid;
  43         LDAPControl             **ctrls = NULL;
  44         ldap_back_send_t        retrying = LDAP_BACK_RETRYING;
  45         int                     rc = LDAP_SUCCESS;
  46         char                    *newSup = NULL;
  47         struct berval           newrdn = BER_BVNULL;
  48
  49         if ( !ldap_back_dobind( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
  50                 return rs->sr_err;
  51         }
  52
  53         if ( op->orr_newSup ) {
  54                 /* needs LDAPv3 */
  55                 switch ( li->li_version ) {
  56                 case LDAP_VERSION3:
  57                         break;
  58
  59                 case 0:
  60                         if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) {
  61                                 break;
  62                         }
  63                         /* fall thru */
  64
  65                 default:
  66                         /* op->o_protocol cannot be anything but LDAPv3,
  67                          * otherwise wouldn't be here */
  68                         rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
  69                         send_ldap_result( op, rs );
  70                         goto cleanup;
  71                 }
  72
  73                 newSup = op->orr_newSup->bv_val;
  74         }
  75
  76         /* NOTE: we need to copy the newRDN in case it was formed
  77          * from a DN by simply changing the length (ITS#5397) */
  78         newrdn = op->orr_newrdn;
  79         if ( newrdn.bv_val[ newrdn.bv_len ] != '\0' ) {
  80                 ber_dupbv_x( &newrdn, &op->orr_newrdn, op->o_tmpmemctx );
  81         }
  82
  83 retry:
  84         ctrls = op->o_ctrls;
  85         rc = ldap_back_controls_add( op, rs, lc, &ctrls );
  86         if ( rc != LDAP_SUCCESS ) {
  87                 send_ldap_result( op, rs );
  88                 goto cleanup;
  89         }
  90
  91         rs->sr_err = ldap_rename( lc->lc_ld, op->o_req_dn.bv_val,
  92                         newrdn.bv_val, newSup,
  93                         op->orr_deleteoldrdn, ctrls, NULL, &msgid );
  94         rc = ldap_back_op_result( lc, op, rs, msgid,
  95                 li->li_timeout[ SLAP_OP_MODRDN ],
  96                 ( LDAP_BACK_SENDRESULT | retrying ) );
  97         if ( rs->sr_err == LDAP_UNAVAILABLE && retrying ) {
  98                 retrying &= ~LDAP_BACK_RETRYING;
  99                 if ( ldap_back_retry( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
 100                         /* if the identity changed, there might be need to re-authz */
 101                         (void)ldap_back_controls_free( op, rs, &ctrls );
 102                         goto retry;
 103                 }
 104         }
 105
 106         ldap_pvt_thread_mutex_lock( &li->li_counter_mutex );
 107         ldap_pvt_mp_add( li->li_ops_completed[ SLAP_OP_MODRDN ], 1 );
 108         ldap_pvt_thread_mutex_unlock( &li->li_counter_mutex );
 109
 110 cleanup:
 111         (void)ldap_back_controls_free( op, rs, &ctrls );
 112
 113         if ( newrdn.bv_val != op->orr_newrdn.bv_val ) {
 114                 op->o_tmpfree( newrdn.bv_val, op->o_tmpmemctx );
 115         }
 116
 117         if ( lc != NULL ) {
 118                 ldap_back_release_conn( li, lc );
 119         }
 120
 121         return rs->sr_err;
 122 }
 123