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

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1999-2005 The OpenLDAP Foundation.
   5  * Portions Copyright 2001-2003 Pierangelo Masarati.
   6  * Portions Copyright 1999-2003 Howard Chu.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in the file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17 /* ACKNOWLEDGEMENTS:
  18  * This work was initially developed by the Howard Chu for inclusion
  19  * in OpenLDAP Software and subsequently enhanced by Pierangelo
  20  * Masarati.
  21  */
  22
  23 #include "portable.h"
  24
  25 #include <stdio.h>
  26
  27 #include <ac/socket.h>
  28 #include <ac/string.h>
  29
  30 #include "slap.h"
  31 #include "../back-ldap/back-ldap.h"
  32 #include "back-meta.h"
  33
  34 int
  35 meta_back_modrdn( Operation *op, SlapReply *rs )
  36 {
  37         struct metainfo         *li = ( struct metainfo * )op->o_bd->be_private;
  38         struct metaconn         *lc;
  39         int                     rc = 0;
  40         int                     candidate = -1;
  41         struct berval           mdn = BER_BVNULL,
  42                                 mnewSuperior = BER_BVNULL;
  43         dncookie                dc;
  44
  45         lc = meta_back_getconn( op, rs, META_OP_REQUIRE_SINGLE,
  46                         &op->o_req_ndn, &candidate, LDAP_BACK_SENDERR );
  47         if ( !lc ) {
  48                 return rs->sr_err;
  49         }
  50
  51         assert( candidate != META_TARGET_NONE );
  52
  53         if ( !meta_back_dobind( lc, op, LDAP_BACK_SENDERR ) ) {
  54                 return rs->sr_err;
  55         }
  56
  57         if ( !meta_back_is_valid( lc, candidate ) ) {
  58                 rs->sr_err = LDAP_OTHER;
  59                 send_ldap_result( op, rs );
  60                 return rs->sr_err;
  61         }
  62
  63         dc.conn = op->o_conn;
  64         dc.rs = rs;
  65
  66         if ( op->orr_newSup ) {
  67                 int nsCandidate, version = LDAP_VERSION3;
  68
  69                 nsCandidate = meta_back_select_unique_candidate( li,
  70                                 op->orr_nnewSup );
  71
  72                 if ( nsCandidate != candidate ) {
  73                         /*
  74                          * FIXME: one possibility is to delete the entry
  75                          * from one target and add it to the other;
  76                          * unfortunately we'd need write access to both,
  77                          * which is nearly impossible; for administration
  78                          * needs, the rootdn of the metadirectory could
  79                          * be mapped to an administrative account on each
  80                          * target (the binddn?); we'll see.
  81                          */
  82                         /*
  83                          * FIXME: is this the correct return code?
  84                          */
  85                         rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
  86                         rs->sr_text = "cross-target rename not supported";
  87                         rc = -1;
  88                         goto cleanup;
  89                 }
  90
  91                 ldap_set_option( lc->mc_conns[ nsCandidate ].msc_ld,
  92                                 LDAP_OPT_PROTOCOL_VERSION, &version );
  93
  94                 /*
  95                  * Rewrite the new superior, if defined and required
  96                  */
  97                 dc.rwmap = &li->targets[ nsCandidate ]->mt_rwmap;
  98                 dc.ctx = "newSuperiorDN";
  99                 if ( ldap_back_dn_massage( &dc, op->orr_newSup, &mnewSuperior ) ) {
 100                         rc = -1;
 101                         goto cleanup;
 102                 }
 103         }
 104
 105         /*
 106          * Rewrite the modrdn dn, if required
 107          */
 108         dc.rwmap = &li->targets[ candidate ]->mt_rwmap;
 109         dc.ctx = "modrDN";
 110         if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
 111                 rc = -1;
 112                 goto cleanup;
 113         }
 114
 115         rc = ldap_rename_s( lc->mc_conns[ candidate ].msc_ld, mdn.bv_val,
 116                         op->orr_newrdn.bv_val,
 117                         mnewSuperior.bv_val,
 118                         op->orr_deleteoldrdn,
 119                         op->o_ctrls, NULL ) != LDAP_SUCCESS;
 120
 121 cleanup:;
 122         if ( mdn.bv_val != op->o_req_dn.bv_val ) {
 123                 free( mdn.bv_val );
 124                 BER_BVZERO( &mdn );
 125         }
 126
 127         if ( !BER_BVISNULL( &mnewSuperior )
 128                         && mnewSuperior.bv_val != op->orr_newSup->bv_val )
 129         {
 130                 free( mnewSuperior.bv_val );
 131                 BER_BVZERO( &mnewSuperior );
 132         }
 133
 134         if ( rc == 0 ) {
 135                 return meta_back_op_result( lc, op, rs ) == LDAP_SUCCESS
 136                         ? 0 : 1;
 137         } /* else */
 138
 139         send_ldap_result( op, rs );
 140
 141         return rc;
 142 }
 143