/* $NetBSD: modrdn.c,v 1.1.1.6.6.1 2019/08/10 06:17:17 martin Exp $ */ /* $OpenLDAP$ */ /* This work is part of OpenLDAP Software . * * Copyright 1998-2019 The OpenLDAP Foundation. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted only as authorized by the OpenLDAP * Public License. * * A copy of this license is available in the file LICENSE in the * top-level directory of the distribution or, alternatively, at * . */ /* Portions Copyright 1999, Juan C. Gomez, All rights reserved. * This software is not subject to any license of Silicon Graphics * Inc. or Purdue University. * * Redistribution and use in source and binary forms are permitted * without restriction or fee of any kind as long as this notice * is preserved. */ /* Portions Copyright (c) 1995 Regents of the University of Michigan. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that this notice is preserved and that due credit is given * to the University of Michigan at Ann Arbor. The name of the University * may not be used to endorse or promote products derived from this * software without specific prior written permission. This software * is provided ``as is'' without express or implied warranty. */ #include __RCSID("$NetBSD: modrdn.c,v 1.1.1.6.6.1 2019/08/10 06:17:17 martin Exp $"); #include "portable.h" #include #include #include #include "slap.h" int do_modrdn( Operation *op, SlapReply *rs ) { 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; } int fe_op_modrdn( Operation *op, SlapReply *rs ) { 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; } int slap_modrdn2mods( Operation *op, SlapReply *rs ) { 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; } if ( !desc->ad_type->sat_equality ) { 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 ); rs->sr_text = "naming attribute has no equality matching rule"; rs->sr_err = LDAP_NAMING_VIOLATION; 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; }