Adding upstream version 2.4.47+dfsg.upstream/2.4.47+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 347 insertions, 0 deletions

diff --git a/servers/slapd/back-ndb/add.cpp b/servers/slapd/back-ndb/add.cpp
new file mode 100644
index 0000000..72112dc
--- /dev/null
+++ b/servers/slapd/back-ndb/add.cpp
@@ -0,0 +1,347 @@
+/* add.cpp - ldap NDB back-end add routine */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2008-2018 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>.
+ */
+/* 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 "back-ndb.h"
+
+extern "C" int
+ndb_back_add(Operation *op, SlapReply *rs )
+{
+	struct ndb_info *ni = (struct ndb_info *) op->o_bd->be_private;
+	Entry		p = {0};
+	Attribute	poc;
+	char textbuf[SLAP_TEXT_BUFLEN];
+	size_t textlen = sizeof textbuf;
+	AttributeDescription *children = slap_schema.si_ad_children;
+	AttributeDescription *entry = slap_schema.si_ad_entry;
+	NdbArgs NA;
+	NdbRdns rdns;
+	struct berval matched;
+	struct berval pdn, pndn;
+
+	int		num_retries = 0;
+	int		success;
+
+	LDAPControl **postread_ctrl = NULL;
+	LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
+	int num_ctrls = 0;
+
+	Debug(LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(ndb_back_add) ": %s\n",
+		op->oq_add.rs_e->e_name.bv_val, 0, 0);
+
+	ctrls[num_ctrls] = 0;
+	NA.txn = NULL;
+
+	/* check entry's schema */
+	rs->sr_err = entry_schema_check( op, op->oq_add.rs_e, NULL,
+		get_relax(op), 1, NULL, &rs->sr_text, textbuf, textlen );
+	if ( rs->sr_err != LDAP_SUCCESS ) {
+		Debug( LDAP_DEBUG_TRACE,
+			LDAP_XSTRING(ndb_back_add) ": entry failed schema check: "
+			"%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
+		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,
+			LDAP_XSTRING(ndb_back_add) ": entry failed op attrs add: "
+			"%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
+		goto return_results;
+	}
+
+	/* Get our NDB handle */
+	rs->sr_err = ndb_thread_handle( op, &NA.ndb );
+
+	/*
+	 * Get the parent dn and see if the corresponding entry exists.
+	 */
+	if ( be_issuffix( op->o_bd, &op->oq_add.rs_e->e_nname ) ) {
+		pdn = slap_empty_bv;
+		pndn = slap_empty_bv;
+	} else {
+		dnParent( &op->ora_e->e_name, &pdn );
+		dnParent( &op->ora_e->e_nname, &pndn );
+	}
+	p.e_name = op->ora_e->e_name;
+	p.e_nname = op->ora_e->e_nname;
+
+	op->ora_e->e_id = NOID;
+	rdns.nr_num = 0;
+	NA.rdns = &rdns;
+
+	if( 0 ) {
+retry:	/* transaction retry */
+		NA.txn->close();
+		NA.txn = NULL;
+		if ( op->o_abandon ) {
+			rs->sr_err = SLAPD_ABANDON;
+			goto return_results;
+		}
+		ndb_trans_backoff( ++num_retries );
+	}
+
+	NA.txn = NA.ndb->startTransaction();
+	rs->sr_text = NULL;
+	if( !NA.txn ) {
+		Debug( LDAP_DEBUG_TRACE,
+			LDAP_XSTRING(ndb_back_add) ": 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 or parent */
+	NA.e = &p;
+	NA.ocs = NULL;
+	rs->sr_err = ndb_entry_get_info( op, &NA, 0, &matched );
+	switch( rs->sr_err ) {
+	case 0:
+		rs->sr_err = LDAP_ALREADY_EXISTS;
+		goto return_results;
+	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 ( NA.ocs ) {
+		int i;
+		for ( i=0; !BER_BVISNULL( &NA.ocs[i] ); i++ );
+		poc.a_numvals = i;
+		poc.a_desc = slap_schema.si_ad_objectClass;
+		poc.a_vals = NA.ocs;
+		poc.a_nvals = poc.a_vals;
+		poc.a_next = NULL;
+		p.e_attrs = &poc;
+	}
+
+	if ( ber_bvstrcasecmp( &pndn, &matched ) ) {
+		rs->sr_matched = matched.bv_val;
+		Debug( LDAP_DEBUG_TRACE,
+			LDAP_XSTRING(ndb_back_add) ": parent "
+			"does not exist\n", 0, 0, 0 );
+
+		rs->sr_text = "parent does not exist";
+		rs->sr_err = LDAP_NO_SUCH_OBJECT;
+		if ( p.e_attrs && is_entry_referral( &p )) {
+is_ref:			p.e_attrs = NULL;
+			ndb_entry_get_data( op, &NA, 0 );
+			rs->sr_ref = get_entry_referrals( op, &p );
+			rs->sr_err = LDAP_REFERRAL;
+			rs->sr_flags = REP_REF_MUSTBEFREED;
+			attrs_free( p.e_attrs );
+			p.e_attrs = NULL;
+		}
+		goto return_results;
+	}
+
+	p.e_name = pdn;
+	p.e_nname = pndn;
+	rs->sr_err = access_allowed( op, &p,
+		children, NULL, ACL_WADD, NULL );
+
+	if ( ! rs->sr_err ) {
+		Debug( LDAP_DEBUG_TRACE,
+			LDAP_XSTRING(ndb_back_add) ": 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;
+	}
+
+	if ( NA.ocs ) {
+		if ( is_entry_subentry( &p )) {
+			/* parent is a subentry, don't allow add */
+			Debug( LDAP_DEBUG_TRACE,
+				LDAP_XSTRING(ndb_back_add) ": parent is subentry\n",
+				0, 0, 0 );
+			rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
+			rs->sr_text = "parent is a subentry";
+			goto return_results;
+		}
+
+		if ( is_entry_alias( &p ) ) {
+			/* parent is an alias, don't allow add */
+			Debug( LDAP_DEBUG_TRACE,
+				LDAP_XSTRING(ndb_back_add) ": parent is alias\n",
+				0, 0, 0 );
+			rs->sr_err = LDAP_ALIAS_PROBLEM;
+			rs->sr_text = "parent is an alias";
+			goto return_results;
+		}
+
+		if ( is_entry_referral( &p ) ) {
+			/* parent is a referral, don't allow add */
+			rs->sr_matched = p.e_name.bv_val;
+			goto is_ref;
+		}
+	}
+
+	rs->sr_err = access_allowed( op, op->ora_e,
+		entry, NULL, ACL_WADD, NULL );
+
+	if ( ! rs->sr_err ) {
+		Debug( LDAP_DEBUG_TRACE,
+			LDAP_XSTRING(ndb_back_add) ": 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;;
+	}
+
+	/* 
+	 * Check ACL for attribute write access
+	 */
+	if (!acl_check_modlist(op, op->ora_e, op->ora_modlist)) {
+		Debug( LDAP_DEBUG_TRACE,
+			LDAP_XSTRING(bdb_add) ": no write access to attribute\n",
+			0, 0, 0 );
+		rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
+		rs->sr_text = "no write access to attribute";
+		goto return_results;;
+	}
+
+
+	/* acquire entry ID */
+	if ( op->ora_e->e_id == NOID ) {
+		rs->sr_err = ndb_next_id( op->o_bd, NA.ndb, &op->ora_e->e_id );
+		if( rs->sr_err != 0 ) {
+			Debug( LDAP_DEBUG_TRACE,
+				LDAP_XSTRING(ndb_back_add) ": next_id failed (%d)\n",
+				rs->sr_err, 0, 0 );
+			rs->sr_err = LDAP_OTHER;
+			rs->sr_text = "internal error";
+			goto return_results;
+		}
+	}
+
+	if ( matched.bv_val )
+		rdns.nr_num++;
+	NA.e = op->ora_e;
+	/* dn2id index */
+	rs->sr_err = ndb_entry_put_info( op->o_bd, &NA, 0 );
+	if ( rs->sr_err ) {
+		Debug( LDAP_DEBUG_TRACE,
+			LDAP_XSTRING(ndb_back_add) ": ndb_entry_put_info failed (%d)\n",
+			rs->sr_err, 0, 0 );
+		rs->sr_text = "internal error";
+		goto return_results;
+	}
+
+	/* id2entry index */
+	rs->sr_err = ndb_entry_put_data( op->o_bd, &NA );
+	if ( rs->sr_err ) {
+		Debug( LDAP_DEBUG_TRACE,
+			LDAP_XSTRING(ndb_back_add) ": ndb_entry_put_data failed (%d) %s(%d)\n",
+			rs->sr_err, NA.txn->getNdbError().message, NA.txn->getNdbError().code );
+		rs->sr_text = "internal error";
+		goto return_results;
+	}
+
+	/* 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->oq_add.rs_e,
+			&slap_post_read_bv, postread_ctrl ) )
+		{
+			Debug( LDAP_DEBUG_TRACE,
+				"<=- " LDAP_XSTRING(ndb_back_add) ": post-read "
+				"failed!\n", 0, 0, 0 );
+			if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
+				/* FIXME: is it correct to abort
+				 * operation if control fails? */
+				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_add) ": %s : %s (%d)\n",
+			rs->sr_text, NA.txn->getNdbError().message, NA.txn->getNdbError().code );
+		rs->sr_err = LDAP_OTHER;
+		goto return_results;
+	}
+	NA.txn->close();
+	NA.txn = NULL;
+
+	Debug(LDAP_DEBUG_TRACE,
+		LDAP_XSTRING(ndb_back_add) ": added%s id=%08lx dn=\"%s\"\n",
+		op->o_noop ? " (no-op)" : "",
+		op->oq_add.rs_e->e_id, op->oq_add.rs_e->e_dn );
+
+	rs->sr_text = NULL;
+	if( num_ctrls ) rs->sr_ctrls = ctrls;
+
+return_results:
+	success = rs->sr_err;
+	send_ldap_result( op, rs );
+	slap_graduate_commit_csn( op );
+
+	if( NA.txn != NULL ) {
+		NA.txn->execute( Rollback );
+		NA.txn->close();
+	}
+
+	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;
+}