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openldap  2.4.31
Functions
modrdn.c File Reference
#include "portable.h"
#include <stdio.h>
#include <ac/socket.h>
#include <ac/string.h>
#include "slap.h"
#include "../back-ldap/back-ldap.h"
#include "back-meta.h"

Go to the source code of this file.

Functions

int meta_back_modrdn (Operation *op, SlapReply *rs)

Function Documentation

int meta_back_modrdn ( Operation op,
SlapReply rs 
)

Definition at line 35 of file modrdn.c.

{
       metainfo_t    *mi = ( metainfo_t * )op->o_bd->be_private;
       metatarget_t  *mt;
       metaconn_t    *mc;
       int           candidate = -1;
       struct berval mdn = BER_BVNULL,
                     mnewSuperior = BER_BVNULL;
       dncookie      dc;
       int           msgid;
       ldap_back_send_t     retrying = LDAP_BACK_RETRYING;
       LDAPControl   **ctrls = NULL;
       struct berval newrdn = BER_BVNULL;

       mc = meta_back_getconn( op, rs, &candidate, LDAP_BACK_SENDERR );
       if ( !mc || !meta_back_dobind( op, rs, mc, LDAP_BACK_SENDERR ) ) {
              return rs->sr_err;
       }

       assert( mc->mc_conns[ candidate ].msc_ld != NULL );

       mt = mi->mi_targets[ candidate ];
       dc.target = mt;
       dc.conn = op->o_conn;
       dc.rs = rs;

       if ( op->orr_newSup ) {

              /*
               * NOTE: the newParent, if defined, must be on the 
               * same target as the entry to be renamed.  This check
               * has been anticipated in meta_back_getconn()
               */
              /*
               * FIXME: one possibility is to delete the entry
               * from one target and add it to the other;
               * unfortunately we'd need write access to both,
               * which is nearly impossible; for administration
               * needs, the rootdn of the metadirectory could
               * be mapped to an administrative account on each
               * target (the binddn?); we'll see.
               */
              /*
               * NOTE: we need to port the identity assertion
               * feature from back-ldap
               */

              /* needs LDAPv3 */
              switch ( mt->mt_version ) {
              case LDAP_VERSION3:
                     break;

              case 0:
                     if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) {
                            break;
                     }
                     /* fall thru */

              default:
                     /* op->o_protocol cannot be anything but LDAPv3,
                      * otherwise wouldn't be here */
                     rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
                     send_ldap_result( op, rs );
                     goto cleanup;
              }
              
              /*
               * Rewrite the new superior, if defined and required
               */
              dc.ctx = "newSuperiorDN";
              if ( ldap_back_dn_massage( &dc, op->orr_newSup, &mnewSuperior ) ) {
                     rs->sr_err = LDAP_OTHER;
                     send_ldap_result( op, rs );
                     goto cleanup;
              }
       }

       /*
        * Rewrite the modrdn dn, if required
        */
       dc.ctx = "modrDN";
       if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
              rs->sr_err = LDAP_OTHER;
              send_ldap_result( op, rs );
              goto cleanup;
       }

       /* NOTE: we need to copy the newRDN in case it was formed
        * from a DN by simply changing the length (ITS#5397) */
       newrdn = op->orr_newrdn;
       if ( newrdn.bv_val[ newrdn.bv_len ] != '\0' ) {
              ber_dupbv_x( &newrdn, &op->orr_newrdn, op->o_tmpmemctx );
       }

retry:;
       ctrls = op->o_ctrls;
       if ( meta_back_controls_add( op, rs, mc, candidate, &ctrls ) != LDAP_SUCCESS )
       {
              send_ldap_result( op, rs );
              goto cleanup;
       }

       rs->sr_err = ldap_rename( mc->mc_conns[ candidate ].msc_ld,
                     mdn.bv_val, newrdn.bv_val,
                     mnewSuperior.bv_val, op->orr_deleteoldrdn,
                     ctrls, NULL, &msgid );
       rs->sr_err = meta_back_op_result( mc, op, rs, candidate, msgid,
              mt->mt_timeout[ SLAP_OP_MODRDN ], ( LDAP_BACK_SENDRESULT | retrying ) );
       if ( rs->sr_err == LDAP_UNAVAILABLE && retrying ) {
              retrying &= ~LDAP_BACK_RETRYING;
              if ( meta_back_retry( op, rs, &mc, candidate, LDAP_BACK_SENDERR ) ) {
                     /* if the identity changed, there might be need to re-authz */
                     (void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );
                     goto retry;
              }
       }

cleanup:;
       (void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );

       if ( mdn.bv_val != op->o_req_dn.bv_val ) {
              free( mdn.bv_val );
              BER_BVZERO( &mdn );
       }
       
       if ( !BER_BVISNULL( &mnewSuperior )
                     && mnewSuperior.bv_val != op->orr_newSup->bv_val )
       {
              free( mnewSuperior.bv_val );
              BER_BVZERO( &mnewSuperior );
       }

       if ( newrdn.bv_val != op->orr_newrdn.bv_val ) {
              op->o_tmpfree( newrdn.bv_val, op->o_tmpmemctx );
       }

       if ( mc ) {
              meta_back_release_conn( mi, mc );
       }

       return rs->sr_err;
}

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