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 */
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