zebra: add uptime to NHEs

Add uptime for use with NHEs to keep track of how
long we have had this NHE in our rib without an update.

This is treated exactly the same as the re->uptime for
routes. When we get an update for a route, we reset the
uptime.

Signed-off-by: Stephen Worley <sworley@nvidia.com>

1 files changed, 17 insertions, 12 deletions

diff --git a/zebra/zebra_vty.c b/zebra/zebra_vty.c
index 283a3e52d6..8061f34d2b 100644
--- a/zebra/zebra_vty.c
+++ b/zebra/zebra_vty.c
@@ -445,6 +445,16 @@ static void zebra_show_ip_route_opaque(struct vty *vty, struct route_entry *re,
 	}
 }
 
+static void uptime2str(time_t uptime, char *buf, size_t bufsize)
+{
+	time_t cur;
+
+	cur = monotime(NULL);
+	cur -= uptime;
+
+	frrtime_to_interval(cur, buf, bufsize);
+}
+
 /* New RIB.  Detailed information for IPv4 route. */
 static void vty_show_ip_route_detail(struct vty *vty, struct route_node *rn,
 				     int mcast, bool use_fib, bool show_ng)
@@ -499,12 +509,7 @@ static void vty_show_ip_route_detail(struct vty *vty, struct route_node *rn,
 			vty_out(vty, ", best");
 		vty_out(vty, "\n");
 
-		time_t uptime;
-
-		uptime = monotime(NULL);
-		uptime -= re->uptime;
-
-		frrtime_to_interval(uptime, buf, sizeof(buf));
+		uptime2str(re->uptime, buf, sizeof(buf));
 
 		vty_out(vty, "  Last update %s ago\n", buf);
 
@@ -839,17 +844,13 @@ static void vty_show_ip_route(struct vty *vty, struct route_node *rn,
 	json_object *json_nexthops = NULL;
 	json_object *json_nexthop = NULL;
 	json_object *json_route = NULL;
-	time_t uptime;
 	const rib_dest_t *dest = rib_dest_from_rnode(rn);
 	const struct nexthop_group *nhg;
 	char up_str[MONOTIME_STRLEN];
 	bool first_p = true;
 	bool nhg_from_backup = false;
 
-	uptime = monotime(NULL);
-	uptime -= re->uptime;
-
-	frrtime_to_interval(uptime, up_str, sizeof(up_str));
+	uptime2str(re->uptime, up_str, sizeof(up_str));
 
 	/* If showing fib information, use the fib view of the
 	 * nexthops.
@@ -1339,9 +1340,13 @@ static void show_nexthop_group_out(struct vty *vty, struct nhg_hash_entry *nhe)
 	struct nexthop *nexthop = NULL;
 	struct nhg_connected *rb_node_dep = NULL;
 	struct nexthop_group *backup_nhg;
+	char up_str[MONOTIME_STRLEN];
+
+	uptime2str(nhe->uptime, up_str, sizeof(up_str));
 
 	vty_out(vty, "ID: %u (%s)\n", nhe->id, zebra_route_string(nhe->type));
-	vty_out(vty, "     RefCnt: %d\n", nhe->refcnt);
+	vty_out(vty, "     RefCnt: %u\n", nhe->refcnt);
+	vty_out(vty, "     Uptime: %s\n", up_str);
 	vty_out(vty, "     VRF: %s\n", vrf_id_to_name(nhe->vrf_id));
 
 	if (CHECK_FLAG(nhe->flags, NEXTHOP_GROUP_VALID)) {