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718e3744 1/* BGP advertisement and adjacency
2 Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro
3
4This file is part of GNU Zebra.
5
6GNU Zebra is free software; you can redistribute it and/or modify it
7under the terms of the GNU General Public License as published by the
8Free Software Foundation; either version 2, or (at your option) any
9later version.
10
11GNU Zebra is distributed in the hope that it will be useful, but
12WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GNU Zebra; see the file COPYING. If not, write to the Free
18Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
1902111-1307, USA. */
20
00d252cb 21#ifndef _QUAGGA_BGP_ADVERTISE_H
22#define _QUAGGA_BGP_ADVERTISE_H
23
718e3744 24/* BGP advertise FIFO. */
25struct bgp_advertise_fifo
26{
27 struct bgp_advertise *next;
28 struct bgp_advertise *prev;
29};
30
31/* BGP advertise attribute. */
32struct bgp_advertise_attr
33{
34 /* Head of advertisement pointer. */
35 struct bgp_advertise *adv;
36
37 /* Reference counter. */
38 unsigned long refcnt;
39
40 /* Attribute pointer to be announced. */
41 struct attr *attr;
42};
43
44struct bgp_advertise
45{
46 /* FIFO for advertisement. */
47 struct bgp_advertise_fifo fifo;
48
49 /* Link list for same attribute advertise. */
50 struct bgp_advertise *next;
51 struct bgp_advertise *prev;
52
53 /* Prefix information. */
54 struct bgp_node *rn;
55
56 /* Reference pointer. */
57 struct bgp_adj_out *adj;
58
59 /* Advertisement attribute. */
60 struct bgp_advertise_attr *baa;
61
62 /* BGP info. */
63 struct bgp_info *binfo;
64};
65
66/* BGP adjacency out. */
67struct bgp_adj_out
68{
69 /* Lined list pointer. */
70 struct bgp_adj_out *next;
71 struct bgp_adj_out *prev;
72
73 /* Advertised peer. */
74 struct peer *peer;
75
76 /* Advertised attribute. */
77 struct attr *attr;
78
79 /* Advertisement information. */
80 struct bgp_advertise *adv;
81};
82
83/* BGP adjacency in. */
84struct bgp_adj_in
85{
86 /* Linked list pointer. */
87 struct bgp_adj_in *next;
88 struct bgp_adj_in *prev;
89
90 /* Received peer. */
91 struct peer *peer;
92
93 /* Received attribute. */
94 struct attr *attr;
95};
96
97/* BGP advertisement list. */
98struct bgp_synchronize
99{
100 struct bgp_advertise_fifo update;
101 struct bgp_advertise_fifo withdraw;
102 struct bgp_advertise_fifo withdraw_low;
103};
104
718e3744 105/* BGP adjacency linked list. */
106#define BGP_INFO_ADD(N,A,TYPE) \
107 do { \
108 (A)->prev = NULL; \
109 (A)->next = (N)->TYPE; \
110 if ((N)->TYPE) \
111 (N)->TYPE->prev = (A); \
112 (N)->TYPE = (A); \
113 } while (0)
114
115#define BGP_INFO_DEL(N,A,TYPE) \
116 do { \
117 if ((A)->next) \
118 (A)->next->prev = (A)->prev; \
119 if ((A)->prev) \
120 (A)->prev->next = (A)->next; \
121 else \
122 (N)->TYPE = (A)->next; \
123 } while (0)
124
125#define BGP_ADJ_IN_ADD(N,A) BGP_INFO_ADD(N,A,adj_in)
126#define BGP_ADJ_IN_DEL(N,A) BGP_INFO_DEL(N,A,adj_in)
127#define BGP_ADJ_OUT_ADD(N,A) BGP_INFO_ADD(N,A,adj_out)
128#define BGP_ADJ_OUT_DEL(N,A) BGP_INFO_DEL(N,A,adj_out)
129
130/* Prototypes. */
94f2b392 131extern void bgp_adj_out_set (struct bgp_node *, struct peer *, struct prefix *,
718e3744 132 struct attr *, afi_t, safi_t, struct bgp_info *);
94f2b392 133extern void bgp_adj_out_unset (struct bgp_node *, struct peer *, struct prefix *,
718e3744 134 afi_t, safi_t);
94f2b392 135extern void bgp_adj_out_remove (struct bgp_node *, struct bgp_adj_out *,
718e3744 136 struct peer *, afi_t, safi_t);
94f2b392 137extern int bgp_adj_out_lookup (struct peer *, struct prefix *, afi_t, safi_t,
718e3744 138 struct bgp_node *);
139
94f2b392 140extern void bgp_adj_in_set (struct bgp_node *, struct peer *, struct attr *);
141extern void bgp_adj_in_unset (struct bgp_node *, struct peer *);
142extern void bgp_adj_in_remove (struct bgp_node *, struct bgp_adj_in *);
718e3744 143
94f2b392 144extern struct bgp_advertise *
718e3744 145bgp_advertise_clean (struct peer *, struct bgp_adj_out *, afi_t, safi_t);
146
94f2b392 147extern void bgp_sync_init (struct peer *);
148extern void bgp_sync_delete (struct peer *);
00d252cb 149
150#endif /* _QUAGGA_BGP_ADVERTISE_H */