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+/*
+ * Defines and structures common to OSPFv2 and OSPFv3
+ * Copyright (C) 1998, 99, 2000 Kunihiro Ishiguro, Toshiaki Takada
+ *
+ * This file is part of GNU Zebra.
+ *
+ * GNU Zebra 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.
+ *
+ * GNU Zebra 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 _LIBOSPFD_H
+#define _LIBOSPFD_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* IP precedence. */
+#ifndef IPTOS_PREC_INTERNETCONTROL
+#define IPTOS_PREC_INTERNETCONTROL 0xC0
+#endif /* IPTOS_PREC_INTERNETCONTROL */
+
+/* Default protocol, port number. */
+#ifndef IPPROTO_OSPFIGP
+#define IPPROTO_OSPFIGP 89
+#endif /* IPPROTO_OSPFIGP */
+
+/* Architectural Constants */
+#ifdef DEBUG
+#define OSPF_LS_REFRESH_TIME 120
+#else
+#define OSPF_LS_REFRESH_TIME 1800
+#endif
+#define OSPF_MIN_LS_INTERVAL 5000 /* msec */
+#define OSPF_MIN_LS_ARRIVAL 1000 /* in milliseconds */
+#define OSPF_LSA_INITIAL_AGE 0 /* useful for debug */
+#define OSPF_LSA_MAXAGE 3600
+#define OSPF_CHECK_AGE 300
+#define OSPF_LSA_MAXAGE_DIFF 900
+#define OSPF_LS_INFINITY 0xffffff
+#define OSPF_DEFAULT_DESTINATION 0x00000000 /* 0.0.0.0 */
+#define OSPF_INITIAL_SEQUENCE_NUMBER 0x80000001U
+#define OSPF_MAX_SEQUENCE_NUMBER 0x7fffffffU
+#define OSPF_INVALID_SEQUENCE_NUMBER 0x80000000U
+
+/* OSPF Interface Types */
+#define OSPF_IFTYPE_NONE 0
+#define OSPF_IFTYPE_POINTOPOINT 1
+#define OSPF_IFTYPE_BROADCAST 2
+#define OSPF_IFTYPE_NBMA 3
+#define OSPF_IFTYPE_POINTOMULTIPOINT 4
+#define OSPF_IFTYPE_VIRTUALLINK 5
+#define OSPF_IFTYPE_LOOPBACK 6
+#define OSPF_IFTYPE_MAX 7
+
+/* OSPF interface default values. */
+#define OSPF_OUTPUT_COST_DEFAULT 10
+#define OSPF_OUTPUT_COST_INFINITE UINT16_MAX
+#define OSPF_ROUTER_DEAD_INTERVAL_DEFAULT 40
+#define OSPF_ROUTER_DEAD_INTERVAL_MINIMAL 1
+#define OSPF_HELLO_INTERVAL_DEFAULT 10
+#define OSPF_ROUTER_PRIORITY_DEFAULT 1
+#define OSPF_RETRANSMIT_INTERVAL_DEFAULT 5
+#define OSPF_TRANSMIT_DELAY_DEFAULT 1
+#define OSPF_DEFAULT_BANDWIDTH 10000 /* Mbps */
+
+#define OSPF_DEFAULT_REF_BANDWIDTH 100000 /* Mbps */
+
+#define OSPF_POLL_INTERVAL_DEFAULT 60
+#define OSPF_NEIGHBOR_PRIORITY_DEFAULT 0
+
+#define OSPF_MTU_IGNORE_DEFAULT 0
+#define OSPF_FAST_HELLO_DEFAULT 0
+
+#define OSPF_AREA_BACKBONE 0x00000000 /* 0.0.0.0 */
+#define OSPF_AREA_RANGE_COST_UNSPEC -1U
+
+#define OSPF_AREA_DEFAULT 0
+#define OSPF_AREA_STUB 1
+#define OSPF_AREA_NSSA 2
+#define OSPF_AREA_TYPE_MAX 3
+
+/* SPF Throttling timer values. */
+#define OSPF_SPF_DELAY_DEFAULT 0
+#define OSPF_SPF_HOLDTIME_DEFAULT 50
+#define OSPF_SPF_MAX_HOLDTIME_DEFAULT 5000
+
+#define OSPF_LSA_MAXAGE_CHECK_INTERVAL 30
+#define OSPF_LSA_MAXAGE_REMOVE_DELAY_DEFAULT 60
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LIBOSPFD_H */