1 files changed, 246 insertions, 0 deletions
diff --git a/servers/slapd/back-sql/operational.c b/servers/slapd/back-sql/operational.c
new file mode 100644
index 0000000..3eb1ec2
--- /dev/null
+++ b/servers/slapd/back-sql/operational.c
@@ -0,0 +1,246 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1999-2022 The OpenLDAP Foundation.
+ * Portions Copyright 1999 Dmitry Kovalev.
+ * Portions Copyright 2002 Pierangelo Masarati.
+ * 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 Dmitry Kovalev for inclusion
+ * by OpenLDAP Software.  Additional significant contributors include
+ * Pierangelo Masarati.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <sys/types.h>
+
+#include "slap.h"
+#include "proto-sql.h"
+#include "lutil.h"
+
+/*
+ * sets the supported operational attributes (if required)
+ */
+
+Attribute *
+backsql_operational_entryUUID( backsql_info *bi, backsql_entryID *id )
+{
+	int			rc;
+	struct berval		val, nval;
+	AttributeDescription	*desc = slap_schema.si_ad_entryUUID;
+	Attribute		*a;
+
+	backsql_entryUUID( bi, id, &val, NULL );
+
+	rc = (*desc->ad_type->sat_equality->smr_normalize)(
+			SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
+			desc->ad_type->sat_syntax,
+			desc->ad_type->sat_equality,
+			&val, &nval, NULL );
+	if ( rc != LDAP_SUCCESS ) {
+		ber_memfree( val.bv_val );
+		return NULL;
+	}
+
+	a = attr_alloc( desc );
+
+	a->a_numvals = 1;
+	a->a_vals = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
+	a->a_vals[ 0 ] = val;
+	BER_BVZERO( &a->a_vals[ 1 ] );
+
+	a->a_nvals = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
+	a->a_nvals[ 0 ] = nval;
+	BER_BVZERO( &a->a_nvals[ 1 ] );
+
+	return a;
+}
+
+Attribute *
+backsql_operational_entryCSN( Operation *op )
+{
+	char		csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
+	struct berval	entryCSN;
+	Attribute	*a;
+
+	a = attr_alloc( slap_schema.si_ad_entryCSN );
+	a->a_numvals = 1;
+	a->a_vals = ch_malloc( 2 * sizeof( struct berval ) );
+	BER_BVZERO( &a->a_vals[ 1 ] );
+
+#ifdef BACKSQL_SYNCPROV
+	if ( op->o_sync && op->o_tag == LDAP_REQ_SEARCH && op->o_private != NULL ) {
+		assert( op->o_private != NULL );
+
+		entryCSN = *((struct berval *)op->o_private);
+
+	} else
+#endif /* BACKSQL_SYNCPROV */
+	{
+		entryCSN.bv_val = csnbuf;
+		entryCSN.bv_len = sizeof( csnbuf );
+		slap_get_csn( op, &entryCSN, 0 );
+	}
+
+	ber_dupbv( &a->a_vals[ 0 ], &entryCSN );
+
+	a->a_nvals = a->a_vals;
+
+	return a;
+}
+
+int
+backsql_operational(
+	Operation	*op,
+	SlapReply	*rs )
+{
+
+	backsql_info 	*bi = (backsql_info*)op->o_bd->be_private;
+	SQLHDBC 	dbh = SQL_NULL_HDBC;
+	int		rc = 0;
+	Attribute	**ap;
+	enum {
+		BACKSQL_OP_HASSUBORDINATES = 0,
+		BACKSQL_OP_ENTRYUUID,
+		BACKSQL_OP_ENTRYCSN,
+
+		BACKSQL_OP_LAST
+	};
+	int		get_conn = BACKSQL_OP_LAST,
+			got[ BACKSQL_OP_LAST ] = { 0 };
+
+	Debug( LDAP_DEBUG_TRACE, "==>backsql_operational(): entry \"%s\"\n",
+			rs->sr_entry->e_nname.bv_val );
+
+	for ( ap = &rs->sr_entry->e_attrs; *ap; ap = &(*ap)->a_next ) {
+		if ( (*ap)->a_desc == slap_schema.si_ad_hasSubordinates ) {
+			get_conn--;
+			got[ BACKSQL_OP_HASSUBORDINATES ] = 1;
+
+		} else if ( (*ap)->a_desc == slap_schema.si_ad_entryUUID ) {
+			get_conn--;
+			got[ BACKSQL_OP_ENTRYUUID ] = 1;
+
+		} else if ( (*ap)->a_desc == slap_schema.si_ad_entryCSN ) {
+			get_conn--;
+			got[ BACKSQL_OP_ENTRYCSN ] = 1;
+		}
+	}
+
+	for ( ap = &rs->sr_operational_attrs; *ap; ap = &(*ap)->a_next ) {
+		if ( !got[ BACKSQL_OP_HASSUBORDINATES ] &&
+			(*ap)->a_desc == slap_schema.si_ad_hasSubordinates )
+		{
+			get_conn--;
+			got[ BACKSQL_OP_HASSUBORDINATES ] = 1;
+
+		} else if ( !got[ BACKSQL_OP_ENTRYUUID ] && 
+			(*ap)->a_desc == slap_schema.si_ad_entryUUID )
+		{
+			get_conn--;
+			got[ BACKSQL_OP_ENTRYUUID ] = 1;
+
+		} else if ( !got[ BACKSQL_OP_ENTRYCSN ] &&
+			(*ap)->a_desc == slap_schema.si_ad_entryCSN )
+		{
+			get_conn--;
+			got[ BACKSQL_OP_ENTRYCSN ] = 1;
+		}
+	}
+
+	if ( !get_conn ) {
+		return 0;
+	}
+
+	rc = backsql_get_db_conn( op, &dbh );
+	if ( rc != LDAP_SUCCESS ) {
+		Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
+			"could not get connection handle - exiting\n" );
+		return 1;
+	}
+
+	if ( ( SLAP_OPATTRS( rs->sr_attr_flags ) || ad_inlist( slap_schema.si_ad_hasSubordinates, rs->sr_attrs ) ) 
+			&& !got[ BACKSQL_OP_HASSUBORDINATES ]
+			&& attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_hasSubordinates ) == NULL )
+	{
+		rc = backsql_has_children( op, dbh, &rs->sr_entry->e_nname );
+
+		switch( rc ) {
+		case LDAP_COMPARE_TRUE:
+		case LDAP_COMPARE_FALSE:
+			*ap = slap_operational_hasSubordinate( rc == LDAP_COMPARE_TRUE );
+			assert( *ap != NULL );
+			ap = &(*ap)->a_next;
+			rc = 0;
+			break;
+
+		default:
+			Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
+				"has_children failed( %d)\n", rc );
+			return 1;
+		}
+	}
+
+	if ( ( SLAP_OPATTRS( rs->sr_attr_flags ) || ad_inlist( slap_schema.si_ad_entryUUID, rs->sr_attrs ) ) 
+			&& !got[ BACKSQL_OP_ENTRYUUID ]
+			&& attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID ) == NULL )
+	{
+		backsql_srch_info	bsi = { 0 };
+
+		rc = backsql_init_search( &bsi, &rs->sr_entry->e_nname,
+				LDAP_SCOPE_BASE,
+				(time_t)(-1), NULL, dbh, op, rs, NULL,
+				BACKSQL_ISF_GET_ID );
+		if ( rc != LDAP_SUCCESS ) {
+			Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
+				"could not retrieve entry ID - no such entry\n" );
+			return 1;
+		}
+
+		*ap = backsql_operational_entryUUID( bi, &bsi.bsi_base_id );
+
+		(void)backsql_free_entryID( &bsi.bsi_base_id, 0, op->o_tmpmemctx );
+
+		if ( bsi.bsi_attrs != NULL ) {
+			op->o_tmpfree( bsi.bsi_attrs, op->o_tmpmemctx );
+		}
+
+		if ( *ap == NULL ) {
+			Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
+				"could not retrieve entryUUID\n" );
+			return 1;
+		}
+
+		ap = &(*ap)->a_next;
+	}
+
+	if ( ( SLAP_OPATTRS( rs->sr_attr_flags ) || ad_inlist( slap_schema.si_ad_entryCSN, rs->sr_attrs ) ) 
+			&& !got[ BACKSQL_OP_ENTRYCSN ]
+			&& attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN ) == NULL )
+	{
+		*ap = backsql_operational_entryCSN( op );
+		if ( *ap == NULL ) {
+			Debug( LDAP_DEBUG_TRACE, "backsql_operational(): "
+				"could not retrieve entryCSN\n" );
+			return 1;
+		}
+
+		ap = &(*ap)->a_next;
+	}
+
+	Debug( LDAP_DEBUG_TRACE, "<==backsql_operational(%d)\n", rc );
+
+	return rc;
+}
+