ospf_nsm.h
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上传日期:2009-11-15
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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_Down 1
- #define NSM_Attempt 2
- #define NSM_Init 3
- #define NSM_TwoWay 4
- #define NSM_ExStart 5
- #define NSM_Exchange 6
- #define NSM_Loading 7
- #define NSM_Full 8
- #define OSPF_NSM_STATE_MAX 9
- /* OSPF Neighbor State Machine Event. */
- #define NSM_NoEvent 0
- #define NSM_HelloReceived 1
- #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. */
- int ospf_nsm_event (struct thread *);
- void nsm_change_state (struct ospf_neighbor *, int);
- void ospf_check_nbr_loading (struct ospf_neighbor *);
- int ospf_db_summary_isempty (struct ospf_neighbor *);
- int ospf_db_summary_count (struct ospf_neighbor *);
- void ospf_db_summary_clear (struct ospf_neighbor *);
- #endif /* _ZEBRA_OSPF_NSM_H */