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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"

Go to the source code of this file.

Functions

int do_modrdn (Operation *op, SlapReply *rs)
int fe_op_modrdn (Operation *op, SlapReply *rs)
int slap_modrdn2mods (Operation *op, SlapReply *rs)

Function Documentation

int do_modrdn ( Operation op,
SlapReply rs 
)

Definition at line 44 of file modrdn.c.

{
       struct berval dn = BER_BVNULL;
       struct berval newrdn = BER_BVNULL;
       struct berval newSuperior = BER_BVNULL;
       ber_int_t     deloldrdn;

       struct berval pnewSuperior = BER_BVNULL;

       struct berval nnewSuperior = BER_BVNULL;

       ber_len_t     length;

       Debug( LDAP_DEBUG_TRACE, "%s do_modrdn\n",
                     op->o_log_prefix, 0, 0 );
       /*
        * Parse the modrdn request.  It looks like this:
        *
        *     ModifyRDNRequest := SEQUENCE {
        *            entry  DistinguishedName,
        *            newrdn RelativeDistinguishedName
        *            deleteoldrdn  BOOLEAN,
        *            newSuperior   [0] LDAPDN OPTIONAL (v3 Only!)
        *     }
        */

       if ( ber_scanf( op->o_ber, "{mmb", &dn, &newrdn, &deloldrdn )
           == LBER_ERROR )
       {
              Debug( LDAP_DEBUG_ANY, "%s do_modrdn: ber_scanf failed\n",
                     op->o_log_prefix, 0, 0 );
              send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
              return SLAPD_DISCONNECT;
       }

       /* Check for newSuperior parameter, if present scan it */

       if ( ber_peek_tag( op->o_ber, &length ) == LDAP_TAG_NEWSUPERIOR ) {
              if ( op->o_protocol < LDAP_VERSION3 ) {
                     /* Connection record indicates v2 but field 
                      * newSuperior is present: report error.
                      */
                     Debug( LDAP_DEBUG_ANY,
                            "%s do_modrdn: newSuperior requires LDAPv3\n",
                            op->o_log_prefix, 0, 0 );

                     send_ldap_discon( op, rs,
                            LDAP_PROTOCOL_ERROR, "newSuperior requires LDAPv3" );
                     rs->sr_err = SLAPD_DISCONNECT;
                     goto cleanup;
              }

              if ( ber_scanf( op->o_ber, "m", &newSuperior ) 
                   == LBER_ERROR ) {

                     Debug( LDAP_DEBUG_ANY, "%s do_modrdn: ber_scanf(\"m\") failed\n",
                            op->o_log_prefix, 0, 0 );

                     send_ldap_discon( op, rs,
                            LDAP_PROTOCOL_ERROR, "decoding error" );
                     rs->sr_err = SLAPD_DISCONNECT;
                     goto cleanup;
              }
              op->orr_newSup = &pnewSuperior;
              op->orr_nnewSup = &nnewSuperior;
       }

       Debug( LDAP_DEBUG_ARGS,
           "do_modrdn: dn (%s) newrdn (%s) newsuperior (%s)\n",
              dn.bv_val, newrdn.bv_val,
              newSuperior.bv_len ? newSuperior.bv_val : "" );

       if ( ber_scanf( op->o_ber, /*{*/ "}") == LBER_ERROR ) {
              Debug( LDAP_DEBUG_ANY, "%s do_modrdn: ber_scanf failed\n",
                     op->o_log_prefix, 0, 0 );
              send_ldap_discon( op, rs,
                     LDAP_PROTOCOL_ERROR, "decoding error" );
              rs->sr_err = SLAPD_DISCONNECT;
              goto cleanup;
       }

       if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
              Debug( LDAP_DEBUG_ANY, "%s do_modrdn: get_ctrls failed\n",
                     op->o_log_prefix, 0, 0 );
              /* get_ctrls has sent results.     Now clean up. */
              goto cleanup;
       } 

       rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn, op->o_tmpmemctx );
       if( rs->sr_err != LDAP_SUCCESS ) {
              Debug( LDAP_DEBUG_ANY, "%s do_modrdn: invalid dn (%s)\n",
                     op->o_log_prefix, dn.bv_val, 0 );
              send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
              goto cleanup;
       }

       /* FIXME: should have/use rdnPretty / rdnNormalize routines */

       rs->sr_err = dnPrettyNormal( NULL, &newrdn, &op->orr_newrdn, &op->orr_nnewrdn, op->o_tmpmemctx );
       if( rs->sr_err != LDAP_SUCCESS ) {
              Debug( LDAP_DEBUG_ANY, "%s do_modrdn: invalid newrdn (%s)\n",
                     op->o_log_prefix, newrdn.bv_val, 0 );
              send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid new RDN" );
              goto cleanup;
       }

       if( rdn_validate( &op->orr_newrdn ) != LDAP_SUCCESS ) {
              Debug( LDAP_DEBUG_ANY, "%s do_modrdn: invalid rdn (%s)\n",
                     op->o_log_prefix, op->orr_newrdn.bv_val, 0 );
              send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid new RDN" );
              goto cleanup;
       }

       if( op->orr_newSup ) {
              rs->sr_err = dnPrettyNormal( NULL, &newSuperior, &pnewSuperior,
                     &nnewSuperior, op->o_tmpmemctx );
              if( rs->sr_err != LDAP_SUCCESS ) {
                     Debug( LDAP_DEBUG_ANY,
                            "%s do_modrdn: invalid newSuperior (%s)\n",
                            op->o_log_prefix, newSuperior.bv_val, 0 );
                     send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid newSuperior" );
                     goto cleanup;
              }
       }

       Statslog( LDAP_DEBUG_STATS, "%s MODRDN dn=\"%s\"\n",
           op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );

       op->orr_deleteoldrdn = deloldrdn;
       op->orr_modlist = NULL;

       /* prepare modlist of modifications from old/new RDN */
       rs->sr_err = slap_modrdn2mods( op, rs );
       if ( rs->sr_err != LDAP_SUCCESS ) {
              send_ldap_result( op, rs );
              goto cleanup;
       }

       op->o_bd = frontendDB;
       rs->sr_err = frontendDB->be_modrdn( op, rs );

#ifdef LDAP_X_TXN
       if( rs->sr_err == LDAP_X_TXN_SPECIFY_OKAY ) {
              /* skip cleanup */
       }
#endif

cleanup:
       op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
       op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );

       op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );       
       op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );      

       if ( op->orr_modlist != NULL )
              slap_mods_free( op->orr_modlist, 1 );

       if ( !BER_BVISNULL( &pnewSuperior ) ) {
              op->o_tmpfree( pnewSuperior.bv_val, op->o_tmpmemctx );
       }
       if ( !BER_BVISNULL( &nnewSuperior ) ) {
              op->o_tmpfree( nnewSuperior.bv_val, op->o_tmpmemctx );
       }

       return rs->sr_err;
}

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int fe_op_modrdn ( Operation op,
SlapReply rs 
)

Definition at line 215 of file modrdn.c.

{
       struct berval dest_ndn = BER_BVNULL, dest_pndn, pdn = BER_BVNULL;
       BackendDB     *op_be, *bd = op->o_bd;
       ber_slen_t    diff;
       
       if( op->o_req_ndn.bv_len == 0 ) {
              Debug( LDAP_DEBUG_ANY, "%s do_modrdn: root dse!\n",
                     op->o_log_prefix, 0, 0 );
              send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
                     "cannot rename the root DSE" );
              goto cleanup;

       } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
              Debug( LDAP_DEBUG_ANY, "%s do_modrdn: subschema subentry: %s (%ld)\n",
                     op->o_log_prefix, frontendDB->be_schemandn.bv_val, (long)frontendDB->be_schemandn.bv_len );

              send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
                     "cannot rename subschema subentry" );
              goto cleanup;
       }

       if( op->orr_nnewSup ) {
              dest_pndn = *op->orr_nnewSup;
       } else {
              dnParent( &op->o_req_ndn, &dest_pndn );
       }
       build_new_dn( &dest_ndn, &dest_pndn, &op->orr_nnewrdn, op->o_tmpmemctx );

       diff = (ber_slen_t) dest_ndn.bv_len - (ber_slen_t) op->o_req_ndn.bv_len;
       if ( diff > 0 ? dnIsSuffix( &dest_ndn, &op->o_req_ndn )
              : diff < 0 && dnIsSuffix( &op->o_req_ndn, &dest_ndn ) )
       {
              send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
                     diff > 0 ? "cannot place an entry below itself"
                     : "cannot place an entry above itself" );
              goto cleanup;
       }

       /*
        * We could be serving multiple database backends.  Select the
        * appropriate one, or send a referral to our "referral server"
        * if we don't hold it.
        */
       op->o_bd = select_backend( &op->o_req_ndn, 1 );
       if ( op->o_bd == NULL ) {
              op->o_bd = bd;
              rs->sr_ref = referral_rewrite( default_referral,
                     NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
              if (!rs->sr_ref) rs->sr_ref = default_referral;

              if ( rs->sr_ref != NULL ) {
                     rs->sr_err = LDAP_REFERRAL;
                     send_ldap_result( op, rs );

                     if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
              } else {
                     send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
                            "no global superior knowledge" );
              }
              goto cleanup;
       }

       /* If we've got a glued backend, check the real backend */
       op_be = op->o_bd;
       if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
              op->o_bd = select_backend( &op->o_req_ndn, 0 );
       }

       /* check restrictions */
       if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
              send_ldap_result( op, rs );
              goto cleanup;
       }

       /* check for referrals */
       if ( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
              goto cleanup;
       }

       /* check that destination DN is in the same backend as source DN */
       if ( select_backend( &dest_ndn, 0 ) != op->o_bd ) {
                     send_ldap_error( op, rs, LDAP_AFFECTS_MULTIPLE_DSAS,
                            "cannot rename between DSAs" );
                     goto cleanup;
       }

       /*
        * do the modrdn if 1 && (2 || 3)
        * 1) there is a modrdn function implemented in this backend;
        * 2) this backend is master for what it holds;
        * 3) it's a replica and the dn supplied is the update_ndn.
        */
       if ( op->o_bd->be_modrdn ) {
              /* do the update here */
              int repl_user = be_isupdate( op );
              if ( !SLAP_SINGLE_SHADOW(op->o_bd) || repl_user )
              {
                     op->o_bd = op_be;
                     op->o_bd->be_modrdn( op, rs );

                     if ( op->o_bd->be_delete ) {
                            struct berval org_req_dn = BER_BVNULL;
                            struct berval org_req_ndn = BER_BVNULL;
                            struct berval org_dn = BER_BVNULL;
                            struct berval org_ndn = BER_BVNULL;
                            int           org_managedsait;

                            org_req_dn = op->o_req_dn;
                            org_req_ndn = op->o_req_ndn;
                            org_dn = op->o_dn;
                            org_ndn = op->o_ndn;
                            org_managedsait = get_manageDSAit( op );
                            op->o_dn = op->o_bd->be_rootdn;
                            op->o_ndn = op->o_bd->be_rootndn;
                            op->o_managedsait = SLAP_CONTROL_NONCRITICAL;

                            while ( rs->sr_err == LDAP_SUCCESS &&
                                          op->o_delete_glue_parent ) {
                                   op->o_delete_glue_parent = 0;
                                   if ( !be_issuffix( op->o_bd, &op->o_req_ndn )) {
                                          slap_callback cb = { NULL };
                                          cb.sc_response = slap_null_cb;
                                          dnParent( &op->o_req_ndn, &pdn );
                                          op->o_req_dn = pdn;
                                          op->o_req_ndn = pdn;
                                          op->o_callback = &cb;
                                          op->o_bd->be_delete( op, rs );
                                   } else {
                                          break;
                                   }
                            }
                            op->o_managedsait = org_managedsait;
                            op->o_dn = org_dn;
                            op->o_ndn = org_ndn;
                            op->o_req_dn = org_req_dn;
                            op->o_req_ndn = org_req_ndn;
                            op->o_delete_glue_parent = 0;
                     }

              } else {
                     BerVarray defref = op->o_bd->be_update_refs
                            ? op->o_bd->be_update_refs : default_referral;

                     if ( defref != NULL ) {
                            rs->sr_ref = referral_rewrite( defref,
                                   NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
                            if (!rs->sr_ref) rs->sr_ref = defref;

                            rs->sr_err = LDAP_REFERRAL;
                            send_ldap_result( op, rs );

                            if (rs->sr_ref != defref) ber_bvarray_free( rs->sr_ref );
                     } else {
                            send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
                                   "shadow context; no update referral" );
                     }
              }
       } else {
              send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
                     "operation not supported within namingContext" );
       }

cleanup:;
       if ( dest_ndn.bv_val != NULL )
              ber_memfree_x( dest_ndn.bv_val, op->o_tmpmemctx );
       op->o_bd = bd;
       return rs->sr_err;
}

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int slap_modrdn2mods ( Operation op,
SlapReply rs 
)

Definition at line 386 of file modrdn.c.

{
       int           a_cnt, d_cnt;
       LDAPRDN              old_rdn = NULL;
       LDAPRDN              new_rdn = NULL;

       assert( !BER_BVISEMPTY( &op->oq_modrdn.rs_newrdn ) );

       /* if requestDN is empty, silently reset deleteOldRDN */
       if ( BER_BVISEMPTY( &op->o_req_dn ) ) op->orr_deleteoldrdn = 0;

       if ( ldap_bv2rdn_x( &op->oq_modrdn.rs_newrdn, &new_rdn,
              (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) ) {
              Debug( LDAP_DEBUG_TRACE,
                     "%s slap_modrdn2mods: can't figure out "
                     "type(s)/value(s) of newrdn\n",
                     op->o_log_prefix, 0, 0 );
              rs->sr_err = LDAP_INVALID_DN_SYNTAX;
              rs->sr_text = "unknown type(s)/value(s) used in RDN";
              goto done;
       }

       if ( op->oq_modrdn.rs_deleteoldrdn ) {
              if ( ldap_bv2rdn_x( &op->o_req_dn, &old_rdn,
                     (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) ) {
                     Debug( LDAP_DEBUG_TRACE,
                            "%s slap_modrdn2mods: can't figure out "
                            "type(s)/value(s) of oldrdn\n",
                            op->o_log_prefix, 0, 0 );
                     rs->sr_err = LDAP_OTHER;
                     rs->sr_text = "cannot parse RDN from old DN";
                     goto done;
              }
       }
       rs->sr_text = NULL;

       /* Add new attribute values to the entry */
       for ( a_cnt = 0; new_rdn[a_cnt]; a_cnt++ ) {
              AttributeDescription *desc = NULL;
              Modifications               *mod_tmp;

              rs->sr_err = slap_bv2ad( &new_rdn[a_cnt]->la_attr, &desc, &rs->sr_text );

              if ( rs->sr_err != LDAP_SUCCESS ) {
                     Debug( LDAP_DEBUG_TRACE,
                            "%s slap_modrdn2mods: %s: %s (new)\n",
                            op->o_log_prefix,
                            rs->sr_text, 
                            new_rdn[ a_cnt ]->la_attr.bv_val );
                     goto done;           
              }

              /* Apply modification */
              mod_tmp = ( Modifications * )ch_malloc( sizeof( Modifications ) );
              mod_tmp->sml_desc = desc;
              BER_BVZERO( &mod_tmp->sml_type );
              mod_tmp->sml_numvals = 1;
              mod_tmp->sml_values = ( BerVarray )ch_malloc( 2 * sizeof( struct berval ) );
              ber_dupbv( &mod_tmp->sml_values[0], &new_rdn[a_cnt]->la_value );
              mod_tmp->sml_values[1].bv_val = NULL;
              if( desc->ad_type->sat_equality->smr_normalize) {
                     mod_tmp->sml_nvalues = ( BerVarray )ch_malloc( 2 * sizeof( struct berval ) );
                     rs->sr_err = desc->ad_type->sat_equality->smr_normalize(
                            SLAP_MR_EQUALITY|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX,
                            desc->ad_type->sat_syntax,
                            desc->ad_type->sat_equality,
                            &mod_tmp->sml_values[0],
                            &mod_tmp->sml_nvalues[0], NULL );
                     if (rs->sr_err != LDAP_SUCCESS) {
                            ch_free(mod_tmp->sml_nvalues);
                            ch_free(mod_tmp->sml_values[0].bv_val);
                            ch_free(mod_tmp->sml_values);
                            ch_free(mod_tmp);
                            goto done;
                     }
                     mod_tmp->sml_nvalues[1].bv_val = NULL;
              } else {
                     mod_tmp->sml_nvalues = NULL;
              }
              mod_tmp->sml_op = SLAP_MOD_SOFTADD;
              mod_tmp->sml_flags = 0;
              mod_tmp->sml_next = op->orr_modlist;
              op->orr_modlist = mod_tmp;
       }

       /* Remove old rdn value if required */
       if ( op->orr_deleteoldrdn ) {
              for ( d_cnt = 0; old_rdn[d_cnt]; d_cnt++ ) {
                     AttributeDescription *desc = NULL;
                     Modifications               *mod_tmp;

                     rs->sr_err = slap_bv2ad( &old_rdn[d_cnt]->la_attr, &desc, &rs->sr_text );
                     if ( rs->sr_err != LDAP_SUCCESS ) {
                            Debug( LDAP_DEBUG_TRACE,
                                   "%s slap_modrdn2mods: %s: %s (old)\n",
                                   op->o_log_prefix,
                                   rs->sr_text, 
                                   old_rdn[d_cnt]->la_attr.bv_val );
                            goto done;           
                     }

                     /* Apply modification */
                     mod_tmp = ( Modifications * )ch_malloc( sizeof( Modifications ) );
                     mod_tmp->sml_desc = desc;
                     BER_BVZERO( &mod_tmp->sml_type );
                     mod_tmp->sml_numvals = 1;
                     mod_tmp->sml_values = ( BerVarray )ch_malloc( 2 * sizeof( struct berval ) );
                     ber_dupbv( &mod_tmp->sml_values[0], &old_rdn[d_cnt]->la_value );
                     mod_tmp->sml_values[1].bv_val = NULL;
                     if( desc->ad_type->sat_equality->smr_normalize) {
                            mod_tmp->sml_nvalues = ( BerVarray )ch_malloc( 2 * sizeof( struct berval ) );
                            (void) (*desc->ad_type->sat_equality->smr_normalize)(
                                   SLAP_MR_EQUALITY|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX,
                                   desc->ad_type->sat_syntax,
                                   desc->ad_type->sat_equality,
                                   &mod_tmp->sml_values[0],
                                   &mod_tmp->sml_nvalues[0], NULL );
                            mod_tmp->sml_nvalues[1].bv_val = NULL;
                     } else {
                            mod_tmp->sml_nvalues = NULL;
                     }
                     mod_tmp->sml_op = LDAP_MOD_DELETE;
                     mod_tmp->sml_flags = 0;
                     mod_tmp->sml_next = op->orr_modlist;
                     op->orr_modlist = mod_tmp;
              }
       }
       
done:

       /* LDAP v2 supporting correct attribute handling. */
       if ( rs->sr_err != LDAP_SUCCESS && op->orr_modlist != NULL ) {
              Modifications *tmp;

              for ( ; op->orr_modlist != NULL; op->orr_modlist = tmp ) {
                     tmp = op->orr_modlist->sml_next;
                     ch_free( op->orr_modlist );
              }
       }

       if ( new_rdn != NULL ) {
              ldap_rdnfree_x( new_rdn, op->o_tmpmemctx );
       }
       if ( old_rdn != NULL ) {
              ldap_rdnfree_x( old_rdn, op->o_tmpmemctx );
       }

       return rs->sr_err;
}

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