From 84cac51a51fc29349077e8cecadf1aed11f9b824 Mon Sep 17 00:00:00 2001
From: "Ondrej Zajicek (work)" <santiago@crfreenet.org>
Date: Tue, 30 Aug 2016 17:17:27 +0200
Subject: Nest: Keep multipath next hops sorted

---
 nest/rt-table.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'nest/rt-table.c')

diff --git a/nest/rt-table.c b/nest/rt-table.c
index 9baf2849..f4df22aa 100644
--- a/nest/rt-table.c
+++ b/nest/rt-table.c
@@ -804,6 +804,13 @@ rte_validate(rte *e)
       return 0;
     }
 
+  if ((e->attrs->dest == RTD_MULTIPATH) && !mpnh_is_sorted(e->attrs->nexthops))
+    {
+      log(L_WARN "Ignoring unsorted multipath route %I/%d received via %s",
+	  n->n.prefix, n->n.pxlen, e->sender->proto->name);
+      return 0;
+    }
+
   return 1;
 }
 
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