Allows rejected routes to be kept and examined.

When 'import keep rejected' protocol option is activated, routes
rejected by the import filter are kept in the routing table, but they
are hidden and not propagated to other protocols. It is possible to
examine them using 'show route rejected'.

1 files changed, 9 insertions, 1 deletions

diff --git a/nest/route.h b/nest/route.h
index 524e69b3..3c10fc55 100644
--- a/nest/route.h
+++ b/nest/route.h
@@ -221,6 +221,14 @@ typedef struct rte {
 } rte;
 
 #define REF_COW		1		/* Copy this rte on write */
+#define REF_REJECTED	2		/* Route is rejected by import filter */
+
+/* Route is valid for propagation (may depend on other flags in the future), accepts NULL */
+static inline int rte_is_valid(rte *r) { return r && !(r->flags & REF_REJECTED); }
+
+/* Route just has REF_REJECTED flag */
+static inline int rte_is_rejected(rte *r) { return !!(r->flags & REF_REJECTED); }
+
 
 /* Types of route announcement, also used as flags */
 #define RA_OPTIMAL	1		/* Announcement of optimal route change */
@@ -263,7 +271,7 @@ struct rt_show_data {
   struct fib_iterator fit;
   struct proto *show_protocol;
   struct proto *export_protocol;
-  int export_mode, primary_only;
+  int export_mode, primary_only, rejected;
   struct config *running_on_config;
   int net_counter, rt_counter, show_counter;
   int stats, show_for;