1 files changed, 65 insertions, 0 deletions
diff --git a/ospfd/ospf_nsm.h b/ospfd/ospf_nsm.h
new file mode 100644
index 0000000..82e1720
--- /dev/null
+++ b/ospfd/ospf_nsm.h
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * OSPF version 2  Neighbor State Machine
+ *   From RFC2328 [OSPF Version 2]
+ *   Copyright (C) 1999 Toshiaki Takada
+ */
+
+#ifndef _ZEBRA_OSPF_NSM_H
+#define _ZEBRA_OSPF_NSM_H
+
+#include "hook.h"
+
+/* OSPF Neighbor State Machine State. */
+#define NSM_DependUpon          0
+#define NSM_Deleted		1
+#define NSM_Down		2
+#define NSM_Attempt		3
+#define NSM_Init		4
+#define NSM_TwoWay		5
+#define NSM_ExStart		6
+#define NSM_Exchange		7
+#define NSM_Loading		8
+#define NSM_Full		9
+#define OSPF_NSM_STATE_MAX     10
+
+/* OSPF Neighbor State Machine Event. */
+#define NSM_NoEvent	        0
+#define NSM_HelloReceived	1 /* HelloReceived in the protocol */
+#define NSM_Start		2
+#define NSM_TwoWayReceived	3
+#define NSM_NegotiationDone	4
+#define NSM_ExchangeDone	5
+#define NSM_BadLSReq		6
+#define NSM_LoadingDone		7
+#define NSM_AdjOK		8
+#define NSM_SeqNumberMismatch	9
+#define NSM_OneWayReceived     10
+#define NSM_KillNbr	       11
+#define NSM_InactivityTimer    12
+#define NSM_LLDown	       13
+#define OSPF_NSM_EVENT_MAX     14
+
+/* Macro for OSPF NSM timer turn on. */
+#define OSPF_NSM_TIMER_ON(T, F, V) event_add_timer(master, (F), nbr, (V), &(T))
+
+/* Macro for OSPF NSM schedule event. */
+#define OSPF_NSM_EVENT_SCHEDULE(N, E)                                          \
+	event_add_event(master, ospf_nsm_event, (N), (E), NULL)
+
+/* Macro for OSPF NSM execute event. */
+#define OSPF_NSM_EVENT_EXECUTE(N, E)                                           \
+	event_execute(master, ospf_nsm_event, (N), (E), NULL)
+
+/* Prototypes. */
+extern void ospf_nsm_event(struct event *e);
+extern void ospf_check_nbr_loading(struct ospf_neighbor *nbr);
+extern int ospf_db_summary_isempty(struct ospf_neighbor *nbr);
+extern int ospf_db_summary_count(struct ospf_neighbor *nbr);
+extern void ospf_db_summary_clear(struct ospf_neighbor *nbr);
+extern int nsm_should_adj(struct ospf_neighbor *nbr);
+DECLARE_HOOK(ospf_nsm_change,
+	     (struct ospf_neighbor * on, int state, int oldstate),
+	     (on, state, oldstate));
+
+#endif /* _ZEBRA_OSPF_NSM_H */