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/*
* OSPF version 2 Neighbor State Machine
* From RFC2328 [OSPF Version 2]
* Copyright (C) 1999 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 GNU Zebra; see the file COPYING. If not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef _ZEBRA_OSPF_NSM_H
#define _ZEBRA_OSPF_NSM_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_PacketReceived 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) \
do { \
if (!(T)) \
(T) = thread_add_timer (master, (F), nbr, (V)); \
} while (0)
/* Macro for OSPF NSM timer turn off. */
#define OSPF_NSM_TIMER_OFF(X) \
do { \
if (X) \
{ \
thread_cancel (X); \
(X) = NULL; \
} \
} while (0)
/* Macro for OSPF NSM schedule event. */
#define OSPF_NSM_EVENT_SCHEDULE(N,E) \
thread_add_event (master, ospf_nsm_event, (N), (E))
/* Macro for OSPF NSM execute event. */
#define OSPF_NSM_EVENT_EXECUTE(N,E) \
thread_execute (master, ospf_nsm_event, (N), (E))
/* Prototypes. */
extern int ospf_nsm_event (struct thread *);
extern void ospf_check_nbr_loading (struct ospf_neighbor *);
extern int ospf_db_summary_isempty (struct ospf_neighbor *);
extern int ospf_db_summary_count (struct ospf_neighbor *);
extern void ospf_db_summary_clear (struct ospf_neighbor *);
#endif /* _ZEBRA_OSPF_NSM_H */
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