lib: BGP registration with IGP for BGP ORR rSPF calc

Signed-off-by: Madhuri Kuruganti <maduri111@gmail.com>

1 files changed, 87 insertions, 0 deletions

diff --git a/lib/orr_msg.h b/lib/orr_msg.h
new file mode 100644
index 0000000000..03f92ef125
--- /dev/null
+++ b/lib/orr_msg.h
@@ -0,0 +1,87 @@
+/*
+ * Structures common to BGP, OSPF and ISIS for BGP Optimal Route Reflection
+ * Copyright (C) 2021 Samsung R&D Institute India - Bangalore.
+ *			Madhurilatha Kuruganti
+ *
+ * This program 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 of the License, or (at your option)
+ * any later version.
+ *
+ * This program 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
+ */
+
+#ifndef _FRR_ORR_MSG_H
+#define _FRR_ORR_MSG_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* REVISIT: Need to check if we can use zero length array */
+#define ORR_MAX_PREFIX 100
+
+struct orr_prefix_metric {
+	struct prefix prefix;
+	uint32_t metric;
+};
+
+/* BGP-IGP Register for IGP metric */
+struct orr_igp_metric_reg {
+	bool reg;
+	uint8_t proto;
+	safi_t safi;
+	struct prefix prefix;
+};
+
+/* IGP-BGP message structures */
+struct orr_igp_metric_info {
+	/* IGP instance data. */
+	uint8_t proto;
+	uint32_t instId;
+
+	safi_t safi;
+
+	/* IGP metric from Active Root. */
+	struct prefix root;
+	uint32_t num_entries;
+	struct orr_prefix_metric nexthop[ORR_MAX_PREFIX];
+};
+
+/* BGP ORR Root node */
+struct orr_root {
+	afi_t afi;
+	safi_t safi;
+
+	/* MPLS_TE prefix and router ID */
+	struct prefix prefix;
+	struct in_addr router_id;
+
+	/* Advertising OSPF Router ID. */
+	struct in_addr adv_router;
+
+	/* BGP-ORR Received LSAs */
+	struct ospf_lsa *router_lsa_rcvd;
+
+	/* Routing tables from root node */
+	struct route_table *old_table; /* Old routing table. */
+	struct route_table *new_table; /* Current routing table. */
+
+	struct route_table *old_rtrs; /* Old ABR/ASBR RT. */
+	struct route_table *new_rtrs; /* New ABR/ASBR RT. */
+};
+
+/* Prototypes. */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _FRR_ORR_MSG_H */