From: Jorge Boncompte <jbonor@gmail.com>
Date: Tue, 25 Jul 2017 10:26:13 +0000 (+0200)
Subject: zebra: copy MTU from non static routes into nexthop
X-Git-Tag: frr-4.0-dev~455^2~8
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=43e31305875b5c3ea2f9f27f99ee6f42c1186c80;p=mirror%2Ffrr.git

zebra: copy MTU from non static routes into nexthop

Some routing protocols advertise route MTU (e.g. NHRP), with this patch
installed routes in the kernel have the advertised MTU.

Signed-off-by: Jorge Boncompte <jbonor@gmail.com>
---

diff --git a/zebra/zebra_rib.c b/zebra/zebra_rib.c
index 98508aaa89..f5ee2dff90 100644
--- a/zebra/zebra_rib.c
+++ b/zebra/zebra_rib.c
@@ -505,6 +505,8 @@ static int nexthop_active(afi_t afi, struct route_entry *re,
 					}
 					resolved = 1;
 				}
+			if (resolved && set)
+				re->nexthop_mtu = match->mtu;
 			return resolved;
 		} else if (re->type == ZEBRA_ROUTE_STATIC) {
 			resolved = 0;