isisd: add support to import routes from other protocols

Signed-off-by: Christian Franke <chris@opensourcerouting.org>
diff --git a/isisd/isis_zebra.h b/isisd/isis_zebra.h
index 0011478..dd36d7d 100644
--- a/isisd/isis_zebra.h
+++ b/isisd/isis_zebra.h
@@ -28,5 +28,7 @@
 void isis_zebra_route_update (struct prefix *prefix,
 			      struct isis_route_info *route_info);
 int isis_distribute_list_update (int routetype);
+void isis_zebra_redistribute_set(int type);
+void isis_zebra_redistribute_unset(int type);
 
 #endif /* _ZEBRA_ISIS_ZEBRA_H */