allow adding of back-bdb with monitoring on (ITS#4789)

servers/slapd/back-bdb/monitor.c

@@ -455,6 +455,8 @@ bdb_monitor_db_open( BackendDB *be )
 	cb->mc_free = bdb_monitor_free;
 	cb->mc_private = (void *)bdb;
 
+	(void)mbe->register_database( be );
+
 	rc = mbe->register_entry_attrs( NULL, a, cb,
 		base, bdb->bi_monitor.bdm_scope, filter );
 

servers/slapd/back-monitor/database.c

@@ -341,6 +341,93 @@ monitor_subsys_database_init_one(
 	return 0;
 }
 
+int
+monitor_back_register_database(
+	BackendDB		*be )
+{
+	monitor_info_t		*mi;
+	Entry			*e_database, **ep;
+	int			i, rc;
+	monitor_entry_t		*mp;
+	monitor_subsys_t	*ms_backend,
+				*ms_database,
+				*ms_overlay;
+	struct berval		bv;
+
+	assert( be_monitor != NULL );
+
+	mi = ( monitor_info_t * )be_monitor->be_private;
+
+	ms_backend = monitor_back_get_subsys( SLAPD_MONITOR_BACKEND_NAME );
+	if ( ms_backend == NULL ) {
+		Debug( LDAP_DEBUG_ANY,
+			"monitor_back_register_database: "
+			"unable to get "
+			"\"" SLAPD_MONITOR_BACKEND_NAME "\" "
+			"subsystem\n",
+			0, 0, 0 );
+		return -1;
+	}
+
+	ms_database = monitor_back_get_subsys( SLAPD_MONITOR_DATABASE_NAME );
+	if ( ms_backend == NULL ) {
+		Debug( LDAP_DEBUG_ANY,
+			"monitor_back_register_database: "
+			"unable to get "
+			"\"" SLAPD_MONITOR_DATABASE_NAME "\" "
+			"subsystem\n",
+			0, 0, 0 );
+		return -1;
+	}
+
+	ms_overlay = monitor_back_get_subsys( SLAPD_MONITOR_OVERLAY_NAME );
+	if ( ms_overlay == NULL ) {
+		Debug( LDAP_DEBUG_ANY,
+			"monitor_back_register_database: "
+			"unable to get "
+			"\"" SLAPD_MONITOR_OVERLAY_NAME "\" "
+			"subsystem\n",
+			0, 0, 0 );
+		return -1;
+	}
+
+	if ( monitor_cache_get( mi, &ms_database->mss_ndn, &e_database ) ) {
+		Debug( LDAP_DEBUG_ANY,
+			"monitor_subsys_database_init: "
+			"unable to get entry \"%s\"\n",
+			ms_database->mss_ndn.bv_val, 0, 0 );
+		return( -1 );
+	}
+
+	mp = ( monitor_entry_t * )e_database->e_private;
+	for ( i = -1, ep = &mp->mp_children; *ep; i++ ) {
+		mp = ( monitor_entry_t * )(*ep)->e_private;
+
+		assert( mp != NULL );
+		ep = &mp->mp_next;
+	}
+
+	{	
+		char		buf[ BACKMONITOR_BUFSIZE ];
+
+		bv.bv_val = buf;
+		bv.bv_len = snprintf( buf, sizeof( buf ), "cn=Database %d", i );
+		if ( bv.bv_len >= sizeof( buf ) ) {
+			return -1;
+		}
+		
+		rc = monitor_subsys_database_init_one( mi, be,
+			ms_database, ms_backend, ms_overlay, &bv, e_database, &ep );
+		if ( rc != 0 ) {
+			return rc;
+		}
+	}
+	
+	monitor_cache_release( mi, e_database );
+
+	return 0;
+}
+
 int
 monitor_subsys_database_init(
 	BackendDB		*be,

servers/slapd/back-monitor/init.c

@@ -52,10 +52,10 @@ static const monitor_extra_t monitor_extra = {
 	monitor_back_get_subsys_by_dn,
 
 	monitor_back_register_subsys,
-	NULL,	/* monitor_back_register_backend */
-	NULL,	/* monitor_back_register_database */
-	NULL,	/* monitor_back_register_overlay_info */
-	NULL,	/* monitor_back_register_overlay */
+	monitor_back_register_backend,
+	monitor_back_register_database,
+	monitor_back_register_overlay_info,
+	monitor_back_register_overlay,
 	monitor_back_register_entry,
 	monitor_back_register_entry_parent,
 	monitor_back_register_entry_attrs,
@@ -292,6 +292,27 @@ monitor_back_is_configured( void )
 	return be_monitor != NULL;
 }
 
+int
+monitor_back_register_backend(
+	BackendInfo		*bi )
+{
+	return -1;
+}
+
+int
+monitor_back_register_overlay_info(
+	slap_overinst		*on )
+{
+	return -1;
+}
+
+int
+monitor_back_register_overlay(
+	BackendDB		*be )
+{
+	return -1;
+}
+
 int
 monitor_back_register_entry(
 	Entry			*e,

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

@@ -137,6 +137,18 @@ monitor_entry_stub LDAP_P((
 extern int
 monitor_back_register_subsys LDAP_P((
 	monitor_subsys_t	*ms ));
+extern int
+monitor_back_register_backend LDAP_P((
+	BackendInfo		*bi ));
+extern int
+monitor_back_register_database LDAP_P((
+	BackendDB		*be ));
+extern int
+monitor_back_register_overlay_info LDAP_P((
+	slap_overinst		*on ));
+extern int
+monitor_back_register_overlay LDAP_P((
+	BackendDB		*be ));
 extern monitor_subsys_t *
 monitor_back_get_subsys LDAP_P((
 	const char		*name ));