1 files changed, 67 insertions, 0 deletions
diff --git a/sharpd/sharp_nht.c b/sharpd/sharp_nht.c
new file mode 100644
index 000000000..174f18686
--- /dev/null
+++ b/sharpd/sharp_nht.c
@@ -0,0 +1,67 @@
+/*
+ * SHARP - code to track nexthops
+ * Copyright (C) Cumulus Networks, Inc.
+ *               Donald Sharp
+ *
+ * This file is part of FRR.
+ *
+ * FRR is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * FRR is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <zebra.h>
+
+#include "memory.h"
+#include "nexthop.h"
+#include "nexthop_group.h"
+#include "vty.h"
+
+#include "sharp_nht.h"
+#include "sharp_globals.h"
+
+DEFINE_MTYPE_STATIC(SHARPD, NH_TRACKER, "Nexthop Tracker")
+
+struct sharp_nh_tracker *sharp_nh_tracker_get(struct prefix *p)
+{
+	struct listnode *node;
+	struct sharp_nh_tracker *nht;
+
+	for (ALL_LIST_ELEMENTS_RO(sg.nhs, node, nht)) {
+		if (prefix_same(&nht->p, p))
+			break;
+	}
+
+	if (nht)
+		return nht;
+
+	nht = XCALLOC(MTYPE_NH_TRACKER, sizeof(*nht));
+	prefix_copy(&nht->p, p);
+
+	listnode_add(sg.nhs, nht);
+	return nht;
+}
+
+void sharp_nh_tracker_dump(struct vty *vty)
+{
+	struct listnode *node;
+	struct sharp_nh_tracker *nht;
+
+	for (ALL_LIST_ELEMENTS_RO(sg.nhs, node, nht)) {
+		char buf[PREFIX_STRLEN];
+
+		vty_out(vty, "%s: Nexthops: %u Updates: %u\n",
+			prefix2str(&nht->p, buf, sizeof(buf)),
+			nht->nhop_num,
+			nht->updates);
+	}
+}