From 843b10c8b0c28ed3bea9a37b166500aabf5e930f Mon Sep 17 00:00:00 2001
From: "Ondrej Zajicek (work)" <santiago@crfreenet.org>
Date: Thu, 10 Oct 2019 15:25:36 +0200
Subject: [PATCH] Nest: Handle non-MPLS on MPLS case in recursive route update

When non-MPLS recursive route resolves to MPLS underlying route,
then it should get MPLS labels from the the underlying route.
---
 nest/rt-table.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/nest/rt-table.c b/nest/rt-table.c
index d99953e5..0844070d 100644
--- a/nest/rt-table.c
+++ b/nest/rt-table.c
@@ -2115,6 +2115,7 @@ no_nexthop:
     memset(nhp, 0, NEXTHOP_MAX_SIZE);
     nhp->iface = nh->iface;
     nhp->weight = nh->weight;
+
     if (mls)
     {
       nhp->labels = nh->labels + mls->len;
@@ -2132,6 +2133,13 @@ no_nexthop:
 	continue;
       }
     }
+    else if (nh->labels)
+    {
+      nhp->labels = nh->labels;
+      nhp->labels_orig = 0;
+      memcpy(nhp->label, nh->label, nh->labels * sizeof(u32));
+    }
+
     if (ipa_nonzero(nh->gw))
     {
       nhp->gw = nh->gw;			/* Router nexthop */