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 */ 82