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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:35:32 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:35:32 +0000
commit5ea77a75dd2d2158401331879f3c8f47940a732c (patch)
treed89dc06e9f4850a900f161e25f84e922c4f86cc8 /servers/slapd/back-ndb/delete.cpp
parentInitial commit. (diff)
downloadopenldap-5ea77a75dd2d2158401331879f3c8f47940a732c.tar.xz
openldap-5ea77a75dd2d2158401331879f3c8f47940a732c.zip
Adding upstream version 2.5.13+dfsg.upstream/2.5.13+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'servers/slapd/back-ndb/delete.cpp')
-rw-r--r--servers/slapd/back-ndb/delete.cpp322
1 files changed, 322 insertions, 0 deletions
diff --git a/servers/slapd/back-ndb/delete.cpp b/servers/slapd/back-ndb/delete.cpp
new file mode 100644
index 0000000..46b33f6
--- /dev/null
+++ b/servers/slapd/back-ndb/delete.cpp
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+/* delete.cpp - ndb backend delete routine */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2008-2022 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>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by Howard Chu for inclusion
+ * in OpenLDAP Software. This work was sponsored by MySQL.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ac/string.h>
+
+#include "lutil.h"
+#include "back-ndb.h"
+
+static struct berval glue_bv = BER_BVC("glue");
+
+int
+ndb_back_delete( Operation *op, SlapReply *rs )
+{
+ struct ndb_info *ni = (struct ndb_info *) op->o_bd->be_private;
+ Entry e = {0};
+ Entry p = {0};
+ int manageDSAit = get_manageDSAit( op );
+ AttributeDescription *children = slap_schema.si_ad_children;
+ AttributeDescription *entry = slap_schema.si_ad_entry;
+
+ NdbArgs NA;
+ NdbRdns rdns;
+ struct berval matched;
+
+ int num_retries = 0;
+
+ int rc;
+
+ LDAPControl **preread_ctrl = NULL;
+ LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
+ int num_ctrls = 0;
+
+ Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(ndb_back_delete) ": %s\n",
+ op->o_req_dn.bv_val, 0, 0 );
+
+ ctrls[num_ctrls] = 0;
+
+ /* allocate CSN */
+ if ( BER_BVISNULL( &op->o_csn ) ) {
+ struct berval csn;
+ char csnbuf[LDAP_PVT_CSNSTR_BUFSIZE];
+
+ csn.bv_val = csnbuf;
+ csn.bv_len = sizeof(csnbuf);
+ slap_get_csn( op, &csn, 1 );
+ }
+
+ if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
+ dnParent( &op->o_req_dn, &p.e_name );
+ dnParent( &op->o_req_ndn, &p.e_nname );
+ }
+
+ /* Get our NDB handle */
+ rs->sr_err = ndb_thread_handle( op, &NA.ndb );
+ rdns.nr_num = 0;
+ NA.rdns = &rdns;
+ NA.ocs = NULL;
+ NA.e = &e;
+ e.e_name = op->o_req_dn;
+ e.e_nname = op->o_req_ndn;
+
+ if( 0 ) {
+retry: /* transaction retry */
+ NA.txn->close();
+ NA.txn = NULL;
+ Debug( LDAP_DEBUG_TRACE,
+ "==> " LDAP_XSTRING(ndb_back_delete) ": retrying...\n",
+ 0, 0, 0 );
+ if ( op->o_abandon ) {
+ rs->sr_err = SLAPD_ABANDON;
+ goto return_results;
+ }
+ if ( NA.ocs ) {
+ ber_bvarray_free( NA.ocs );
+ NA.ocs = NULL;
+ }
+ ndb_trans_backoff( ++num_retries );
+ }
+
+ /* begin transaction */
+ NA.txn = NA.ndb->startTransaction();
+ rs->sr_text = NULL;
+ if( !NA.txn ) {
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(ndb_back_delete) ": startTransaction failed: %s (%d)\n",
+ NA.ndb->getNdbError().message, NA.ndb->getNdbError().code, 0 );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "internal error";
+ goto return_results;
+ }
+
+ /* get entry */
+ rs->sr_err = ndb_entry_get_info( op, &NA, 1, &matched );
+ switch( rs->sr_err ) {
+ case 0:
+ case LDAP_NO_SUCH_OBJECT:
+ break;
+#if 0
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto retry;
+#endif
+ case LDAP_BUSY:
+ rs->sr_text = "ldap server busy";
+ goto return_results;
+ default:
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "internal error";
+ goto return_results;
+ }
+
+ if ( rs->sr_err == LDAP_NO_SUCH_OBJECT ||
+ ( !manageDSAit && bvmatch( NA.ocs, &glue_bv ))) {
+ Debug( LDAP_DEBUG_ARGS,
+ "<=- " LDAP_XSTRING(ndb_back_delete) ": no such object %s\n",
+ op->o_req_dn.bv_val, 0, 0);
+
+ if ( rs->sr_err == LDAP_NO_SUCH_OBJECT ) {
+ rs->sr_matched = matched.bv_val;
+ if ( NA.ocs )
+ ndb_check_referral( op, rs, &NA );
+ } else {
+ rs->sr_matched = p.e_name.bv_val;
+ rs->sr_err = LDAP_NO_SUCH_OBJECT;
+ }
+ goto return_results;
+ }
+
+ /* check parent for "children" acl */
+ rs->sr_err = access_allowed( op, &p,
+ children, NULL, ACL_WDEL, NULL );
+
+ if ( !rs->sr_err ) {
+ Debug( LDAP_DEBUG_TRACE,
+ "<=- " LDAP_XSTRING(ndb_back_delete) ": no write "
+ "access to parent\n", 0, 0, 0 );
+ rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
+ rs->sr_text = "no write access to parent";
+ goto return_results;
+ }
+
+ rs->sr_err = ndb_entry_get_data( op, &NA, 1 );
+
+ rs->sr_err = access_allowed( op, &e,
+ entry, NULL, ACL_WDEL, NULL );
+
+ if ( !rs->sr_err ) {
+ Debug( LDAP_DEBUG_TRACE,
+ "<=- " LDAP_XSTRING(ndb_back_delete) ": no write access "
+ "to entry\n", 0, 0, 0 );
+ rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
+ rs->sr_text = "no write access to entry";
+ goto return_results;
+ }
+
+ if ( !manageDSAit && is_entry_referral( &e ) ) {
+ /* entry is a referral, don't allow delete */
+ rs->sr_ref = get_entry_referrals( op, &e );
+
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(ndb_back_delete) ": entry is referral\n",
+ 0, 0, 0 );
+
+ rs->sr_err = LDAP_REFERRAL;
+ rs->sr_matched = e.e_name.bv_val;
+ rs->sr_flags = REP_REF_MUSTBEFREED;
+ goto return_results;
+ }
+
+ if ( get_assert( op ) &&
+ ( test_filter( op, &e, (Filter *)get_assertion( op )) != LDAP_COMPARE_TRUE ))
+ {
+ rs->sr_err = LDAP_ASSERTION_FAILED;
+ goto return_results;
+ }
+
+ /* pre-read */
+ if( op->o_preread ) {
+ if( preread_ctrl == NULL ) {
+ preread_ctrl = &ctrls[num_ctrls++];
+ ctrls[num_ctrls] = NULL;
+ }
+ if( slap_read_controls( op, rs, &e,
+ &slap_pre_read_bv, preread_ctrl ) )
+ {
+ Debug( LDAP_DEBUG_TRACE,
+ "<=- " LDAP_XSTRING(ndb_back_delete) ": pre-read "
+ "failed!\n", 0, 0, 0 );
+ if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
+ /* FIXME: is it correct to abort
+ * operation if control fails? */
+ goto return_results;
+ }
+ }
+ }
+
+ /* Can't do it if we have kids */
+ rs->sr_err = ndb_has_children( &NA, &rc );
+ if ( rs->sr_err ) {
+ Debug(LDAP_DEBUG_ARGS,
+ "<=- " LDAP_XSTRING(ndb_back_delete)
+ ": has_children failed: %s (%d)\n",
+ NA.txn->getNdbError().message, NA.txn->getNdbError().code, 0 );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "internal error";
+ goto return_results;
+ }
+ if ( rc == LDAP_COMPARE_TRUE ) {
+ Debug(LDAP_DEBUG_ARGS,
+ "<=- " LDAP_XSTRING(ndb_back_delete)
+ ": non-leaf %s\n",
+ op->o_req_dn.bv_val, 0, 0);
+ rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
+ rs->sr_text = "subordinate objects must be deleted first";
+ goto return_results;
+ }
+
+ /* delete info */
+ rs->sr_err = ndb_entry_del_info( op->o_bd, &NA );
+ if ( rs->sr_err != 0 ) {
+ Debug(LDAP_DEBUG_TRACE,
+ "<=- " LDAP_XSTRING(ndb_back_delete) ": del_info failed: %s (%d)\n",
+ NA.txn->getNdbError().message, NA.txn->getNdbError().code, 0 );
+ rs->sr_text = "DN index delete failed";
+ rs->sr_err = LDAP_OTHER;
+ goto return_results;
+ }
+
+ /* delete data */
+ rs->sr_err = ndb_entry_del_data( op->o_bd, &NA );
+ if ( rs->sr_err != 0 ) {
+ Debug( LDAP_DEBUG_TRACE,
+ "<=- " LDAP_XSTRING(ndb_back_delete) ": del_data failed: %s (%d)\n",
+ NA.txn->getNdbError().message, NA.txn->getNdbError().code, 0 );
+ rs->sr_text = "entry delete failed";
+ rs->sr_err = LDAP_OTHER;
+ goto return_results;
+ }
+
+ if( op->o_noop ) {
+ if (( rs->sr_err=NA.txn->execute( NdbTransaction::Rollback,
+ NdbOperation::AbortOnError, 1 )) != 0 ) {
+ rs->sr_text = "txn (no-op) failed";
+ } else {
+ rs->sr_err = LDAP_X_NO_OPERATION;
+ }
+ } else {
+ if (( rs->sr_err=NA.txn->execute( NdbTransaction::Commit,
+ NdbOperation::AbortOnError, 1 )) != 0 ) {
+ rs->sr_text = "txn_commit failed";
+ } else {
+ rs->sr_err = LDAP_SUCCESS;
+ }
+ }
+
+ if( rs->sr_err != LDAP_SUCCESS && rs->sr_err != LDAP_X_NO_OPERATION ) {
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(ndb_back_delete) ": txn_%s failed: %s (%d)\n",
+ op->o_noop ? "abort (no-op)" : "commit",
+ NA.txn->getNdbError().message, NA.txn->getNdbError().code );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "commit failed";
+
+ goto return_results;
+ }
+ NA.txn->close();
+ NA.txn = NULL;
+
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(ndb_back_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
+ op->o_noop ? " (no-op)" : "",
+ e.e_id, op->o_req_dn.bv_val );
+ rs->sr_err = LDAP_SUCCESS;
+ rs->sr_text = NULL;
+ if( num_ctrls ) rs->sr_ctrls = ctrls;
+
+return_results:
+ if ( NA.ocs ) {
+ ber_bvarray_free_x( NA.ocs, op->o_tmpmemctx );
+ NA.ocs = NULL;
+ }
+
+ /* free entry */
+ if( e.e_attrs != NULL ) {
+ attrs_free( e.e_attrs );
+ e.e_attrs = NULL;
+ }
+
+ if( NA.txn != NULL ) {
+ NA.txn->execute( Rollback );
+ NA.txn->close();
+ }
+
+ send_ldap_result( op, rs );
+ slap_graduate_commit_csn( op );
+
+ if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
+ slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
+ slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
+ }
+ return rs->sr_err;
+}