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-rw-r--r--servers/slapd/modrdn.c548
1 files changed, 548 insertions, 0 deletions
diff --git a/servers/slapd/modrdn.c b/servers/slapd/modrdn.c
new file mode 100644
index 0000000..e594187
--- /dev/null
+++ b/servers/slapd/modrdn.c
@@ -0,0 +1,548 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2018 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
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* 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 "portable.h"
+
+#include <stdio.h>
+
+#include <ac/socket.h>
+#include <ac/string.h>
+
+#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;
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 01:28:32 +0000