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-rw-r--r--servers/slapd/back-wt/add.c373
1 files changed, 373 insertions, 0 deletions
diff --git a/servers/slapd/back-wt/add.c b/servers/slapd/back-wt/add.c
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+++ b/servers/slapd/back-wt/add.c
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+/* OpenLDAP WiredTiger backend */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2002-2022 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 developed by HAMANO Tsukasa <hamano@osstech.co.jp>
+ * based on back-bdb for inclusion in OpenLDAP Software.
+ * WiredTiger is a product of MongoDB Inc.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include "back-wt.h"
+#include "slap-config.h"
+
+int
+wt_add( Operation *op, SlapReply *rs )
+{
+ struct wt_info *wi = (struct wt_info *) op->o_bd->be_private;
+ struct berval pdn;
+ char textbuf[SLAP_TEXT_BUFLEN];
+ size_t textlen = sizeof textbuf;
+ AttributeDescription *children = slap_schema.si_ad_children;
+ AttributeDescription *entry = slap_schema.si_ad_entry;
+ ID eid = NOID;
+ LDAPControl **postread_ctrl = NULL;
+ LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
+ int num_ctrls = 0;
+ wt_ctx *wc;
+ Entry *e = NULL;
+ Entry *p = NULL;
+ ID pid = NOID;
+ int rc;
+
+ Debug( LDAP_DEBUG_ARGS, "==> wt_add: %s\n", op->ora_e->e_name.bv_val );
+
+ ctrls[num_ctrls] = 0;
+
+ /* check entry's schema */
+ rs->sr_err = entry_schema_check(
+ op, op->ora_e, NULL,
+ get_relax(op), 1, NULL, &rs->sr_text, textbuf, textlen );
+ if ( rs->sr_err != LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_TRACE,
+ "wt_add: entry failed schema check: %s (%d)\n",
+ rs->sr_text, rs->sr_err );
+ goto return_results;
+ }
+
+ /* add opattrs to shadow as well, only missing attrs will actually
+ * be added; helps compatibility with older OL versions */
+ rs->sr_err = slap_add_opattrs( op, &rs->sr_text, textbuf, textlen, 1 );
+ if ( rs->sr_err != LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_TRACE,
+ "wt_add: entry failed op attrs add: %s (%d)\n",
+ rs->sr_text, rs->sr_err );
+ goto return_results;
+ }
+
+ if ( get_assert( op ) &&
+ ( test_filter( op, op->ora_e, get_assertion( op ))
+ != LDAP_COMPARE_TRUE ))
+ {
+ rs->sr_err = LDAP_ASSERTION_FAILED;
+ goto return_results;
+ }
+
+ /* Not used
+ * subentry = is_entry_subentry( op->ora_e );
+ */
+
+ /*
+ * Get the parent dn and see if the corresponding entry exists.
+ */
+ if ( be_issuffix( op->o_bd, &op->ora_e->e_nname ) ) {
+ pdn = slap_empty_bv;
+ } else {
+ dnParent( &op->ora_e->e_nname, &pdn );
+ }
+
+ wc = wt_ctx_get(op, wi);
+ if( !wc ){
+ Debug( LDAP_DEBUG_ANY, "wt_add: wt_ctx_get failed\n" );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "internal error";
+ send_ldap_result( op, rs );
+ return rs->sr_err;
+ }
+
+ rc = wt_dn2entry(op->o_bd, wc, &op->o_req_ndn, &e);
+ switch( rc ) {
+ case 0:
+ rs->sr_err = LDAP_ALREADY_EXISTS;
+ goto return_results;
+ break;
+ case WT_NOTFOUND:
+ break;
+ default:
+ /* TODO: retry handling */
+ Debug( LDAP_DEBUG_ANY,
+ "wt_add: error at wt_dn2entry() rc=%d\n", rc );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "internal error";
+ goto return_results;
+ }
+
+ /* get parent entry */
+ rc = wt_dn2pentry(op->o_bd, wc, &op->o_req_ndn, &p);
+ switch( rc ){
+ case 0:
+ case WT_NOTFOUND:
+ break;
+ default:
+ Debug( LDAP_DEBUG_ANY,
+ "wt_add: error at wt_dn2pentry() rc=%d\n", rc );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "internal error";
+ goto return_results;
+ }
+
+ if ( !p )
+ p = (Entry *)&slap_entry_root;
+
+ if ( !bvmatch( &pdn, &p->e_nname ) ) {
+ rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
+ op->o_tmpmemctx );
+ if ( p != (Entry *)&slap_entry_root ) {
+ rs->sr_ref = is_entry_referral( p )
+ ? get_entry_referrals( op, p )
+ : NULL;
+ wt_entry_return( p );
+ } else {
+ rs->sr_ref = NULL;
+ }
+ p = NULL;
+ Debug( LDAP_DEBUG_TRACE, "wt_add: parent does not exist\n" );
+ rs->sr_err = LDAP_REFERRAL;
+ rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
+ goto return_results;
+ }
+
+ rs->sr_err = access_allowed( op, p,
+ children, NULL, ACL_WADD, NULL );
+ if ( ! rs->sr_err ) {
+ /*
+ if ( p != (Entry *)&slap_entry_root )
+ wt_entry_return( op, p );
+ */
+ p = NULL;
+
+ Debug( LDAP_DEBUG_TRACE, "wt_add: no write access to parent\n" );
+ rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
+ rs->sr_text = "no write access to parent";
+ goto return_results;;
+ }
+
+ if ( p != (Entry *)&slap_entry_root ) {
+ if ( is_entry_subentry( p ) ) {
+ wt_entry_return( p );
+ p = NULL;
+ /* parent is a subentry, don't allow add */
+ Debug( LDAP_DEBUG_TRACE, "wt_add: parent is subentry\n" );
+ rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
+ rs->sr_text = "parent is a subentry";
+ goto return_results;;
+ }
+
+ if ( is_entry_alias( p ) ) {
+ wt_entry_return( p );
+ p = NULL;
+ /* parent is an alias, don't allow add */
+ Debug( LDAP_DEBUG_TRACE, "wt_add: parent is alias\n" );
+ rs->sr_err = LDAP_ALIAS_PROBLEM;
+ rs->sr_text = "parent is an alias";
+ goto return_results;;
+ }
+
+ if ( is_entry_referral( p ) ) {
+ BerVarray ref = get_entry_referrals( op, p );
+ /* parent is a referral, don't allow add */
+ rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
+ op->o_tmpmemctx );
+ rs->sr_ref = referral_rewrite( ref, &p->e_name,
+ &op->o_req_dn, LDAP_SCOPE_DEFAULT );
+ ber_bvarray_free( ref );
+ wt_entry_return( p );
+ p = NULL;
+ Debug( LDAP_DEBUG_TRACE, "wt_add: parent is referral\n" );
+
+ rs->sr_err = LDAP_REFERRAL;
+ rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
+ goto return_results;
+ }
+ }
+
+#if 0
+ if ( subentry ) {
+ /* FIXME: */
+ /* parent must be an administrative point of the required kind */
+ }
+#endif
+
+ /* free parent */
+ if ( p != (Entry *)&slap_entry_root ) {
+ pid = p->e_id;
+ if ( p->e_nname.bv_len ) {
+ struct berval ppdn;
+
+ /* ITS#5326: use parent's DN if differs from provided one */
+ dnParent( &op->ora_e->e_name, &ppdn );
+ if ( !dn_match( &p->e_name, &ppdn ) ) {
+ struct berval rdn;
+ struct berval newdn;
+
+ dnRdn( &op->ora_e->e_name, &rdn );
+
+ build_new_dn( &newdn, &p->e_name, &rdn, NULL );
+ if ( op->ora_e->e_name.bv_val != op->o_req_dn.bv_val )
+ ber_memfree( op->ora_e->e_name.bv_val );
+ op->ora_e->e_name = newdn;
+
+ /* FIXME: should check whether
+ * dnNormalize(newdn) == e->e_nname ... */
+ }
+ }
+
+ wt_entry_return( p );
+ }
+ p = NULL;
+
+ rs->sr_err = access_allowed( op, op->ora_e,
+ entry, NULL, ACL_WADD, NULL );
+
+ if ( ! rs->sr_err ) {
+ Debug( LDAP_DEBUG_TRACE, "wt_add: no write access to entry\n" );
+ rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
+ rs->sr_text = "no write access to entry";
+ goto return_results;
+ }
+
+ /*
+ * Check ACL for attribute write access
+ */
+ if (!acl_check_modlist(op, op->ora_e, op->ora_modlist)) {
+ Debug( LDAP_DEBUG_TRACE, "wt_add: no write access to attribute\n" );
+ rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
+ rs->sr_text = "no write access to attribute";
+ goto return_results;
+ }
+
+ rc = wc->session->begin_transaction(wc->session, "isolation=read-uncommitted");
+ if( rc ) {
+ Debug( LDAP_DEBUG_TRACE, "wt_add: begin_transaction failed: %s (%d)\n",
+ wiredtiger_strerror(rc), rc );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "begin_transaction failed";
+ goto return_results;
+ }
+ Debug( LDAP_DEBUG_TRACE, "wt_add: session id: %p\n", wc->session );
+
+ wt_next_id( op->o_bd, &eid );
+ op->ora_e->e_id = eid;
+
+ rc = wt_dn2id_add( op, wc, pid, op->ora_e );
+ if( rc ){
+ Debug( LDAP_DEBUG_TRACE,
+ "wt_add: dn2id_add failed: %s (%d)\n",
+ wiredtiger_strerror(rc), rc );
+ switch( rc ) {
+ case WT_DUPLICATE_KEY:
+ rs->sr_err = LDAP_ALREADY_EXISTS;
+ break;
+ default:
+ rs->sr_err = LDAP_OTHER;
+ }
+ wc->session->rollback_transaction(wc->session, NULL);
+ goto return_results;
+ }
+
+ rc = wt_id2entry_add( op, wc, op->ora_e );
+ if ( rc ) {
+ Debug( LDAP_DEBUG_TRACE,
+ "wt_add: id2entry_add failed: %s (%d)\n",
+ wiredtiger_strerror(rc), rc );
+ if ( rc == LDAP_ADMINLIMIT_EXCEEDED ) {
+ rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
+ rs->sr_text = "entry is too big";
+ } else {
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "entry store failed";
+ }
+ wc->session->rollback_transaction(wc->session, NULL);
+ goto return_results;
+ }
+
+ /* add indices */
+ rc = wt_index_entry_add( op, wc, op->ora_e );
+ if ( rc ) {
+ Debug(LDAP_DEBUG_TRACE,
+ "<== wt_add: index add failed: %s (%d)\n",
+ wiredtiger_strerror(rc), rc );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "index add failed";
+ wc->session->rollback_transaction(wc->session, NULL);
+ goto return_results;
+ }
+
+ rc = wc->session->commit_transaction(wc->session, NULL);
+ if( rc ) {
+ Debug( LDAP_DEBUG_TRACE,
+ "<== wt_add: commit_transaction failed: %s (%d)\n",
+ wiredtiger_strerror(rc), rc );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "commit_transaction failed";
+ goto return_results;
+ }
+
+ rs->sr_err = LDAP_SUCCESS;
+
+ /* post-read */
+ if( op->o_postread ) {
+ if( postread_ctrl == NULL ) {
+ postread_ctrl = &ctrls[num_ctrls++];
+ ctrls[num_ctrls] = NULL;
+ }
+ if ( slap_read_controls( op, rs, op->ora_e,
+ &slap_post_read_bv, postread_ctrl ) )
+ {
+ Debug( LDAP_DEBUG_TRACE, "<=- wt_add: post-read failed!\n" );
+ if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
+ /* FIXME: is it correct to abort
+ * operation if control fails? */
+ goto return_results;
+ }
+ }
+ }
+
+ Debug(LDAP_DEBUG_TRACE,
+ "wt_add: added%s id=%08lx dn=\"%s\"\n",
+ op->o_noop ? " (no-op)" : "",
+ op->ora_e->e_id, op->ora_e->e_dn );
+
+return_results:
+ send_ldap_result( op, rs );
+
+ slap_graduate_commit_csn( op );
+
+ if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
+ slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
+ slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
+ }
+ return rs->sr_err;
+}
+
+/*
+ * Local variables:
+ * indent-tabs-mode: t
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */