add back-relay (doesn't work yet)

servers/slapd/back-relay/Makefile.in

+# Makefile.in for back-relay
+## This work is part of OpenLDAP Software <http://www.openldap.org/>.
+##
+## Copyright 1998-2004 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>.
+
+SRCS	= init.c config.c op.c
+OBJS	= init.lo config.lo op.lo
+
+LDAP_INCDIR= ../../../include       
+LDAP_LIBDIR= ../../../libraries
+
+BUILD_OPT = "--enable-relay"
+BUILD_MOD = @BUILD_RELAY@
+BUILD_MOD_DYNAMIC = @BUILD_RELAY_DYNAMIC@
+
+mod_DEFS = -DSLAPD_IMPORT
+MOD_DEFS = $(@BUILD_RELAY@_DEFS)
+
+shared_LDAP_LIBS = $(LDAP_LIBLDAP_R_LA) $(LDAP_LIBLBER_LA)
+NT_LINK_LIBS = -L.. -lslapd $(@BUILD_LIBS_DYNAMIC@_LDAP_LIBS) $(REWRITE)
+UNIX_LINK_LIBS = $(@BUILD_LIBS_DYNAMIC@_LDAP_LIBS) $(REWRITE)
+
+LIBBASE = back_relay
+
+XINCPATH = -I.. -I$(srcdir)/..
+XDEFS = $(MODULES_CPPFLAGS)
+
+all-local-lib:	../.backend
+
+../.backend: lib$(LIBBASE).a
+	@touch $@
+

servers/slapd/back-relay/back-relay.h

+/* back-relay.h - relay backend header file */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1999-2004 The OpenLDAP Foundation.
+ * Portions Copyright 2004 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 Pierangelo Masarati for inclusion
+ * in OpenLDAP Software.
+ */
+
+#ifndef SLAPD_RELAY_H
+#define SLAPD_RELAY_H
+
+#include "external.h"
+
+/* String rewrite library */
+
+LDAP_BEGIN_DECL
+
+typedef struct relay_back_info {
+	BackendDB	*ri_bd;
+} relay_back_info;
+
+LDAP_END_DECL
+
+#endif /* SLAPD_RELAY_H */

servers/slapd/back-relay/config.c

+/* config.c - relay backend configuration file routine */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2003-2004 The OpenLDAP Foundation.
+ * Portions Copyright 2004 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 Pierangelo Masaratifor inclusion
+ * in OpenLDAP Software.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/string.h>
+#include <ac/socket.h>
+
+#include "slap.h"
+#include "back-relay.h"
+#include "lutil.h"
+
+int
+relay_back_db_config(
+    BackendDB	*be,
+    const char	*fname,
+    int		lineno,
+    int		argc,
+    char	**argv
+)
+{
+	relay_back_info *ri = (struct relay_back_info *)be->be_private;
+
+	if ( ri == NULL ) {
+		fprintf( stderr, "%s: line %d: relay backend info is null!\n",
+		    fname, lineno );
+		return( 1 );
+	}
+
+	/* real naming context */
+	if ( strcasecmp( argv[0], "relay" ) == 0 ) {
+		struct berval	dn, ndn, pdn;
+		int		rc;
+
+		if (argc != 2) {
+			fprintf( stderr,
+	"%s: line %d: missing relay suffix in \"relay <dn>\" line\n",
+			    fname, lineno );
+			return( 1 );
+		}
+
+		dn.bv_val = argv[ 1 ];
+		dn.bv_len = strlen( argv[ 1 ] );
+		rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn, NULL );
+		if ( rc != LDAP_SUCCESS ) {
+			fprintf( stderr, "%s: line %d: "
+					"relay dn '%s' is invalid\n",
+					fname, lineno, argv[ 1 ] );
+			return 1;
+		}
+
+		ri->ri_bd = select_backend( &ndn, 0, 1 );
+		if ( ri->ri_bd == NULL ) {
+			fprintf( stderr, "%s: line %d: "
+					"cannot find database "
+					"of relay dn '%s'\n",
+					fname, lineno, argv[ 1 ] );
+			return 1;
+		}
+		
+		if ( overlay_config( be, "rewrite-remap" ) ) {
+			fprintf( stderr, "unable to install "
+					"rewrite-remap overlay "
+					"in back-relay \"%s\" => \"%s\"\n",
+					be->be_suffix[0].bv_val,
+					ri->ri_bd->be_suffix[0].bv_val ? 
+					ri->ri_bd->be_suffix[0].bv_val : "<unknown>" );
+		}
+
+	/* anything else */
+	} else {
+		return SLAP_CONF_UNKNOWN;
+	}
+
+	return 0;
+}
+

servers/slapd/back-relay/external.h

+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2001-2004 The OpenLDAP Foundation.
+ * Portions Copyright 2004 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 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 Pierangelo Masarati for inclusion
+ * in OpenLDAP Software.
+ */
+
+#ifndef RELAY_EXTERNAL_H
+#define RELAY_EXTERNAL_H
+
+LDAP_BEGIN_DECL
+
+extern BI_init			relay_back_initialize;
+#if 0
+extern BI_config		relay_back_config;
+extern BI_open			relay_back_open;
+extern BI_close			relay_back_close;
+extern BI_destroy		relay_back_destroy;
+#endif
+
+extern BI_db_init		relay_back_db_init;
+extern BI_db_config		relay_back_db_config;
+extern BI_db_open		relay_back_db_open;
+extern BI_db_close		relay_back_db_close;
+extern BI_db_destroy		relay_back_db_destroy;
+
+extern BI_op_bind		relay_back_op_bind;
+extern BI_op_unbind		relay_back_op_unbind;
+extern BI_op_search		relay_back_op_search;
+extern BI_op_compare		relay_back_op_compare;
+extern BI_op_modify		relay_back_op_modify;
+extern BI_op_modrdn		relay_back_op_modrdn;
+extern BI_op_add		relay_back_op_add;
+extern BI_op_delete		relay_back_op_delete;
+extern BI_op_abandon		relay_back_op_abandon;
+extern BI_op_cancel		relay_back_op_cancel;
+extern BI_op_extended		relay_back_op_extended;
+extern BI_entry_release_rw	relay_back_entry_release_rw;
+extern BI_entry_get_rw		relay_back_entry_get_rw;
+extern BI_chk_referrals		relay_back_chk_referrals;
+extern BI_operational		relay_back_operational;
+extern BI_has_subordinates	relay_back_has_subordinates;
+
+extern BI_connection_init	relay_back_connection_init;
+extern BI_connection_destroy	relay_back_connection_destroy;
+
+#if 0
+extern BI_tool_entry_open	relay_back_tool_entry_open;
+extern BI_tool_entry_close	relay_back_tool_entry_close;
+extern BI_tool_entry_first	relay_back_tool_entry_first;
+extern BI_tool_entry_next	relay_back_tool_entry_next;
+extern BI_tool_entry_get	relay_back_tool_entry_get;
+extern BI_tool_entry_put	relay_back_tool_entry_put;
+extern BI_tool_entry_reindex	relay_back_tool_entry_reindex;
+extern BI_tool_sync		relay_back_tool_sync;
+extern BI_tool_dn2id_get	relay_back_tool_dn2id_get;
+extern BI_tool_id2entry_get	relay_back_tool_id2entry_get;
+extern BI_tool_entry_modify	relay_back_tool_entry_modify;
+#endif
+
+LDAP_END_DECL
+
+#endif /* _MONITOR_EXTERNAL_H */
+

servers/slapd/back-relay/init.c

+/* init.c - initialize relay backend */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2003-2004 The OpenLDAP Foundation.
+ * Portions Copyright 2004 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 Pierangelo Masarati for inclusion
+ * in OpenLDAP Software.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/string.h>
+#include <ac/socket.h>
+
+#include "slap.h"
+#include "back-relay.h"
+
+#ifdef SLAPD_RELAY_DYNAMIC
+
+int
+init_module( int argc, char *argv[] ) {
+	BackendInfo	bi;
+
+	memset( &bi, '\0', sizeof( bi ) );
+	bi.bi_type = "relay";
+	bi.bi_init = relay_back_initialize;
+
+	backend_add(&bi);
+	return 0;
+}
+
+#endif /* SLAPD_RELAY_DYNAMIC */
+
+int
+relay_back_initialize( BackendInfo *bi )
+{
+	bi->bi_init = 0;
+	bi->bi_open = 0;
+	bi->bi_config = 0;
+	bi->bi_close = 0;
+	bi->bi_destroy = 0;
+
+	bi->bi_db_init = relay_back_db_init;
+	bi->bi_db_config = relay_back_db_config;
+	bi->bi_db_open = relay_back_db_open;
+	bi->bi_db_close = 0 /* relay_back_db_close */ ;
+	bi->bi_db_destroy = relay_back_db_destroy;
+
+	bi->bi_op_bind = relay_back_op_bind;
+	bi->bi_op_unbind = relay_back_op_unbind;
+	bi->bi_op_search = relay_back_op_search;
+	bi->bi_op_compare = relay_back_op_compare;
+	bi->bi_op_modify = relay_back_op_modify;
+	bi->bi_op_modrdn = relay_back_op_modrdn;
+	bi->bi_op_add = relay_back_op_add;
+	bi->bi_op_delete = relay_back_op_delete;
+	bi->bi_op_abandon = relay_back_op_abandon;
+	bi->bi_op_cancel = relay_back_op_cancel;
+	bi->bi_extended = relay_back_op_extended;
+	bi->bi_entry_release_rw = relay_back_entry_release_rw;
+	bi->bi_entry_get_rw = relay_back_entry_get_rw;
+	bi->bi_chk_referrals = relay_back_chk_referrals;
+	bi->bi_operational = relay_back_operational;
+	bi->bi_has_subordinates = relay_back_has_subordinates;
+
+	bi->bi_connection_init = relay_back_connection_init;
+	bi->bi_connection_destroy = relay_back_connection_destroy;
+
+	return 0;
+}
+
+int
+relay_back_db_init( Backend *be )
+{
+	relay_back_info		*ri;
+
+	ri = (relay_back_info *)ch_calloc( 1, sizeof( relay_back_info ) );
+	if ( ri == NULL ) {
+ 		return -1;
+ 	}
+
+	ri->ri_bd = NULL;
+
+	be->be_private = (void *)ri;
+
+	return 0;
+}
+
+int
+relay_back_db_open( Backend *be )
+{
+	relay_back_info		*ri = (relay_back_info *)be->be_private;
+
+	assert( ri != NULL );
+
+#if 0
+	be->bd_info = ri->ri_bd->bd_info;
+
+	if ( !ri->ri_do_not_massage ) {
+		char	*argv[ 4 ];
+
+		argv[ 0 ] = "suffixmassage";
+		argv[ 1 ] = be->be_suffix[0].bv_val;
+		argv[ 2 ] = ri->ri_bd->be_suffix[0].bv_val;
+		argv[ 3 ] = NULL;
+
+		if ( be->be_config( be, "back-relay", 1, 3, argv ) ) {
+			return 1;
+		}
+	}
+#endif
+
+	return 0;
+}
+
+int
+relay_back_db_close( Backend *be )
+{
+	return 0;
+}
+
+int
+relay_back_db_destroy( Backend *be )
+{
+	relay_back_info		*ri = (relay_back_info *)be->be_private;
+
+	if ( ri ) {
+		ch_free( ri );
+	}
+
+	return 0;
+}

servers/slapd/back-relay/op.c

+/* op.c - relay backend operations */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2003-2004 The OpenLDAP Foundation.
+ * Portions Copyright 2004 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 Pierangelo Masarati for inclusion
+ * in OpenLDAP Software.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/string.h>
+#include <ac/socket.h>
+
+#include "slap.h"
+#include "back-relay.h"
+
+int
+relay_back_op_bind( struct slap_op *op, struct slap_rep *rs )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_bind ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_bind )( op, rs );
+		op->o_bd = be;
+	}
+
+	return rc;
+}
+
+int
+relay_back_op_unbind( struct slap_op *op, struct slap_rep *rs )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_unbind ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_unbind )( op, rs );
+		op->o_bd = be;
+	}
+
+	return rc;
+
+}
+
+int
+relay_back_op_search( struct slap_op *op, struct slap_rep *rs )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_search ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_search )( op, rs );
+		op->o_bd = be;
+	}
+
+	return rc;
+
+}
+
+int
+relay_back_op_compare( struct slap_op *op, struct slap_rep *rs )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_compare ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_compare )( op, rs );
+		op->o_bd = be;
+	}
+
+	return rc;
+
+}
+
+int
+relay_back_op_modify( struct slap_op *op, struct slap_rep *rs )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_modify ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_modify )( op, rs );
+		op->o_bd = be;
+	}
+
+	return rc;
+
+}
+
+int
+relay_back_op_modrdn( struct slap_op *op, struct slap_rep *rs )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_modrdn ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_modrdn )( op, rs );
+		op->o_bd = be;
+	}
+
+	return rc;
+
+}
+
+int
+relay_back_op_add( struct slap_op *op, struct slap_rep *rs )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_add ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_add )( op, rs );
+		op->o_bd = be;
+	}
+
+	return rc;
+
+}
+
+int
+relay_back_op_delete( struct slap_op *op, struct slap_rep *rs )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_delete ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_delete )( op, rs );
+		op->o_bd = be;
+	}
+
+	return rc;
+
+}
+
+int
+relay_back_op_abandon( struct slap_op *op, struct slap_rep *rs )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_abandon ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_abandon )( op, rs );
+		op->o_bd = be;
+	}
+
+	return rc;
+
+}
+
+int
+relay_back_op_cancel( struct slap_op *op, struct slap_rep *rs )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_cancel ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_cancel )( op, rs );
+		op->o_bd = be;
+	}
+
+	return rc;
+
+}
+
+int
+relay_back_op_extended( struct slap_op *op, struct slap_rep *rs )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_extended ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_extended )( op, rs );
+		op->o_bd = be;
+	}
+
+	return rc;
+
+}
+
+int
+relay_back_entry_release_rw( struct slap_op *op, Entry *e, int rw )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_release ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_release )( op, e, rw );
+		op->o_bd = be;
+	}
+
+	return rc;
+
+}
+
+int
+relay_back_entry_get_rw( struct slap_op *op, struct berval *ndn,
+	ObjectClass *oc, AttributeDescription *at, int rw, Entry **e )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_fetch ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_fetch )( op, ndn, oc, at, rw, e );
+		op->o_bd = be;
+	}
+
+	return rc;
+
+}
+
+int relay_back_chk_referrals( struct slap_op *op, struct slap_rep *rs )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_chk_referrals ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_chk_referrals )( op, rs );
+		op->o_bd = be;
+	}
+
+	return rc;
+
+}
+
+int relay_back_operational( struct slap_op *op, struct slap_rep *rs, int opattrs, Attribute **ap )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_operational ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_operational )( op, rs, opattrs, ap );
+		op->o_bd = be;
+	}
+
+	return rc;
+
+}
+
+int relay_back_has_subordinates( struct slap_op *op, Entry *e, int *hasSubs )
+{
+	relay_back_info		*ri = (relay_back_info *)op->o_bd->be_private;
+	int			rc = 1;
+
+	if ( ri->ri_bd->be_has_subordinates ) {
+		BackendDB	*be = op->o_bd;
+
+		op->o_bd = ri->ri_bd;
+		rc = ( ri->ri_bd->be_has_subordinates )( op, e, hasSubs );
+		op->o_bd = be;
+	}
+
+	return rc;
+
+}
+
+int
+relay_back_connection_init( BackendDB *bd, struct slap_conn *c )
+{
+	relay_back_info		*ri = (relay_back_info *)bd->be_private;
+
+	if ( ri->ri_bd->be_connection_init ) {
+		return ( ri->ri_bd->be_connection_init )( ri->ri_bd, c );
+	}
+
+	return 1;
+
+}
+
+int
+relay_back_connection_destroy( BackendDB *bd, struct slap_conn *c )
+{
+	relay_back_info		*ri = (relay_back_info *)bd->be_private;
+
+	if ( ri->ri_bd->be_connection_destroy ) {
+		return ( ri->ri_bd->be_connection_destroy )( ri->ri_bd, c );
+	}
+
+	return 1;
+
+}
+

servers/slapd/back-relay/proto-back-relay.h

+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2001-2004 The OpenLDAP Foundation.
+ * Portions Copyright 2004 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 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 Pierangelo Masarati for inclusion
+ * in OpenLDAP Software.
+ */
+
+#ifndef PROTO_BACK_RELAY
+#define PROTO_BACK_RELAY
+
+#include <ldap_cdefs.h>
+
+#include "external.h"
+
+LDAP_BEGIN_DECL
+
+LDAP_END_DECL
+
+#endif /* PROTO_BACK_RELAY */
+

servers/slapd/backend.c

@@ -81,6 +81,9 @@
 #if defined(SLAPD_PERL) && !defined(SLAPD_PERL_DYNAMIC)
 #include "back-perl/external.h"
 #endif
+#if defined(SLAPD_RELAY) && !defined(SLAPD_RELAY_DYNAMIC)
+#include "back-relay/external.h"
+#endif
 #if defined(SLAPD_SHELL) && !defined(SLAPD_SHELL_DYNAMIC)
 #include "back-shell/external.h"
 #endif
@@ -125,6 +128,9 @@ static BackendInfo binfo[] = {
 #if defined(SLAPD_PERL) && !defined(SLAPD_PERL_DYNAMIC)
 	{"perl",	perl_back_initialize},
 #endif
+#if defined(SLAPD_RELAY) && !defined(SLAPD_RELAY_DYNAMIC)
+	{"relay",	relay_back_initialize},
+#endif
 #if defined(SLAPD_SHELL) && !defined(SLAPD_SHELL_DYNAMIC)
 	{"shell",	shell_back_initialize},
 #endif