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Annotation of embedaddon/quagga/ospfd/ospf_nsm.h, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * OSPF version 2  Neighbor State Machine
                      3:  *   From RFC2328 [OSPF Version 2]
                      4:  *   Copyright (C) 1999 Toshiaki Takada
                      5:  *
                      6:  * This file is part of GNU Zebra.
                      7:  *
                      8:  * GNU Zebra is free software; you can redistribute it and/or modify it
                      9:  * under the terms of the GNU General Public License as published by the
                     10:  * Free Software Foundation; either version 2, or (at your option) any
                     11:  * later version.
                     12:  *
                     13:  * GNU Zebra is distributed in the hope that it will be useful, but
                     14:  * WITHOUT ANY WARRANTY; without even the implied warranty of
                     15:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
                     16:  * General Public License for more details.
                     17:  *
                     18:  * You should have received a copy of the GNU General Public License
                     19:  * along with GNU Zebra; see the file COPYING.  If not, write to the Free
                     20:  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
                     21:  * 02111-1307, USA.
                     22:  */
                     23: 
                     24: #ifndef _ZEBRA_OSPF_NSM_H
                     25: #define _ZEBRA_OSPF_NSM_H
                     26: 
                     27: /* OSPF Neighbor State Machine State. */
                     28: #define NSM_DependUpon          0
                     29: #define NSM_Deleted            1
                     30: #define NSM_Down               2
                     31: #define NSM_Attempt            3
                     32: #define NSM_Init               4
                     33: #define NSM_TwoWay             5
                     34: #define NSM_ExStart            6
                     35: #define NSM_Exchange           7
                     36: #define NSM_Loading            8
                     37: #define NSM_Full               9
                     38: #define OSPF_NSM_STATE_MAX     10
                     39: 
                     40: /* OSPF Neighbor State Machine Event. */
                     41: #define NSM_NoEvent            0
                     42: #define NSM_PacketReceived     1 /* HelloReceived in the protocol */
                     43: #define NSM_Start              2
                     44: #define NSM_TwoWayReceived     3
                     45: #define NSM_NegotiationDone    4
                     46: #define NSM_ExchangeDone       5
                     47: #define NSM_BadLSReq           6
                     48: #define NSM_LoadingDone                7
                     49: #define NSM_AdjOK              8
                     50: #define NSM_SeqNumberMismatch  9
                     51: #define NSM_OneWayReceived     10
                     52: #define NSM_KillNbr           11
                     53: #define NSM_InactivityTimer    12
                     54: #define NSM_LLDown            13
                     55: #define OSPF_NSM_EVENT_MAX     14
                     56: 
                     57: /* Macro for OSPF NSM timer turn on. */
                     58: #define OSPF_NSM_TIMER_ON(T,F,V)                                              \
                     59:       do {                                                                    \
                     60:         if (!(T))                                                             \
                     61:           (T) = thread_add_timer (master, (F), nbr, (V));                     \
                     62:       } while (0)
                     63: 
                     64: /* Macro for OSPF NSM timer turn off. */
                     65: #define OSPF_NSM_TIMER_OFF(X)                                                 \
                     66:       do {                                                                    \
                     67:         if (X)                                                                \
                     68:           {                                                                   \
                     69:             thread_cancel (X);                                                \
                     70:             (X) = NULL;                                                       \
                     71:           }                                                                   \
                     72:       } while (0)
                     73: 
                     74: /* Macro for OSPF NSM schedule event. */
                     75: #define OSPF_NSM_EVENT_SCHEDULE(N,E)                                          \
                     76:       thread_add_event (master, ospf_nsm_event, (N), (E))
                     77: 
                     78: /* Macro for OSPF NSM execute event. */
                     79: #define OSPF_NSM_EVENT_EXECUTE(N,E)                                           \
                     80:       thread_execute (master, ospf_nsm_event, (N), (E))
                     81: 
                     82: /* Prototypes. */
                     83: extern int ospf_nsm_event (struct thread *);
                     84: extern void nsm_change_state (struct ospf_neighbor *, int);
                     85: extern void ospf_check_nbr_loading (struct ospf_neighbor *);
                     86: extern int ospf_db_summary_isempty (struct ospf_neighbor *);
                     87: extern int ospf_db_summary_count (struct ospf_neighbor *);
                     88: extern void ospf_db_summary_clear (struct ospf_neighbor *);
                     89: 
                     90: #endif /* _ZEBRA_OSPF_NSM_H */
                     91: