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quagga 1.0.20160315

    1: /* BGP-4 Finite State Machine   
    2:    From RFC1771 [A Border Gateway Protocol 4 (BGP-4)]
    3:    Copyright (C) 1998 Kunihiro Ishiguro
    4: 
    5: This file is part of GNU Zebra.
    6: 
    7: GNU Zebra is free software; you can redistribute it and/or modify it
    8: under the terms of the GNU General Public License as published by the
    9: Free Software Foundation; either version 2, or (at your option) any
   10: later version.
   11: 
   12: GNU Zebra is distributed in the hope that it will be useful, but
   13: WITHOUT ANY WARRANTY; without even the implied warranty of
   14: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   15: General Public License for more details.
   16: 
   17: You should have received a copy of the GNU General Public License
   18: along with GNU Zebra; see the file COPYING.  If not, write to the Free
   19: Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
   20: 02111-1307, USA.  */
   21: 
   22: #ifndef _QUAGGA_BGP_FSM_H
   23: #define _QUAGGA_BGP_FSM_H
   24: 
   25: /* Macro for BGP read, write and timer thread.  */
   26: #define BGP_READ_ON(T,F,V)			\
   27:   do {						\
   28:     if (!(T) && (peer->status != Deleted))	\
   29:       THREAD_READ_ON(bm->master,T,F,peer,V);	\
   30:   } while (0)
   31: 
   32: #define BGP_READ_OFF(T)				\
   33:   do {						\
   34:     if (T)					\
   35:       THREAD_READ_OFF(T);			\
   36:   } while (0)
   37: 
   38: #define BGP_WRITE_ON(T,F,V)			\
   39:   do {						\
   40:     if (!(T) && (peer->status != Deleted))	\
   41:       THREAD_WRITE_ON(bm->master,(T),(F),peer,(V)); \
   42:   } while (0)
   43:     
   44: #define BGP_WRITE_OFF(T)			\
   45:   do {						\
   46:     if (T)					\
   47:       THREAD_WRITE_OFF(T);			\
   48:   } while (0)
   49: 
   50: #define BGP_TIMER_ON(T,F,V)			\
   51:   do {						\
   52:     if (!(T) && (peer->status != Deleted))	\
   53:       THREAD_TIMER_ON(bm->master,(T),(F),peer,(V)); \
   54:   } while (0)
   55: 
   56: #define BGP_TIMER_OFF(T)			\
   57:   do {						\
   58:     if (T)					\
   59:       THREAD_TIMER_OFF(T);			\
   60:   } while (0)
   61: 
   62: #define BGP_EVENT_ADD(P,E)			\
   63:   do {						\
   64:     if ((P)->status != Deleted)			\
   65:       thread_add_event (bm->master, bgp_event, (P), (E)); \
   66:   } while (0)
   67: 
   68: #define BGP_EVENT_FLUSH(P)			\
   69:   do { 						\
   70:     assert (peer); 				\
   71:     thread_cancel_event (bm->master, (P)); 	\
   72:   } while (0)
   73: 
   74: /* Prototypes. */
   75: extern int bgp_event (struct thread *);
   76: extern int bgp_stop (struct peer *peer);
   77: extern void bgp_timer_set (struct peer *);
   78: extern void bgp_fsm_change_status (struct peer *peer, int status);
   79: extern const char *peer_down_str[];
   80: 
   81: #endif /* _QUAGGA_BGP_FSM_H */