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Commit | Line | Data |
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718e3744 | 1 | /* BGP routing table |
2 | Copyright (C) 1998, 2001 Kunihiro Ishiguro | |
3 | ||
4 | This file is part of GNU Zebra. | |
5 | ||
6 | GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU General Public License as published by the | |
8 | Free Software Foundation; either version 2, or (at your option) any | |
9 | later version. | |
10 | ||
11 | GNU Zebra is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Zebra; see the file COPYING. If not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
19 | 02111-1307, USA. */ | |
20 | ||
21 | #include <zebra.h> | |
22 | ||
23 | #include "prefix.h" | |
24 | #include "memory.h" | |
25 | #include "sockunion.h" | |
26 | #include "vty.h" | |
27 | ||
28 | #include "bgpd/bgpd.h" | |
29 | #include "bgpd/bgp_table.h" | |
30 | ||
228da428 CC |
31 | void |
32 | bgp_table_lock (struct bgp_table *rt) | |
33 | { | |
34 | rt->lock++; | |
35 | } | |
36 | ||
37 | void | |
38 | bgp_table_unlock (struct bgp_table *rt) | |
39 | { | |
40 | assert (rt->lock > 0); | |
41 | rt->lock--; | |
42 | ||
67174041 | 43 | if (rt->lock != 0) |
228da428 | 44 | { |
67174041 | 45 | return; |
228da428 | 46 | } |
718e3744 | 47 | |
67174041 AS |
48 | route_table_finish (rt->route_table); |
49 | rt->route_table = NULL; | |
228da428 CC |
50 | |
51 | if (rt->owner) | |
52 | { | |
53 | peer_unlock (rt->owner); | |
54 | rt->owner = NULL; | |
55 | } | |
56 | ||
718e3744 | 57 | XFREE (MTYPE_BGP_TABLE, rt); |
718e3744 | 58 | } |
59 | ||
718e3744 | 60 | void |
67174041 | 61 | bgp_table_finish (struct bgp_table **rt) |
718e3744 | 62 | { |
67174041 | 63 | if (*rt != NULL) |
718e3744 | 64 | { |
67174041 AS |
65 | bgp_table_unlock(*rt); |
66 | *rt = NULL; | |
718e3744 | 67 | } |
718e3744 | 68 | } |
69 | ||
67174041 AS |
70 | /* |
71 | * bgp_node_create | |
72 | */ | |
73 | static struct route_node * | |
74 | bgp_node_create (route_table_delegate_t *delegate, struct route_table *table) | |
718e3744 | 75 | { |
718e3744 | 76 | struct bgp_node *node; |
67174041 AS |
77 | node = XCALLOC (MTYPE_BGP_NODE, sizeof (struct bgp_node)); |
78 | return bgp_node_to_rnode (node); | |
718e3744 | 79 | } |
80 | ||
67174041 AS |
81 | /* |
82 | * bgp_node_destroy | |
83 | */ | |
b608d5b5 | 84 | static void |
67174041 AS |
85 | bgp_node_destroy (route_table_delegate_t *delegate, |
86 | struct route_table *table, struct route_node *node) | |
718e3744 | 87 | { |
67174041 AS |
88 | struct bgp_node *bgp_node; |
89 | bgp_node = bgp_node_from_rnode (node); | |
90 | XFREE (MTYPE_BGP_NODE, bgp_node); | |
718e3744 | 91 | } |
92 | ||
67174041 AS |
93 | /* |
94 | * Function vector to customize the behavior of the route table | |
95 | * library for BGP route tables. | |
96 | */ | |
97 | route_table_delegate_t bgp_table_delegate = { | |
98 | .create_node = bgp_node_create, | |
99 | .destroy_node = bgp_node_destroy | |
100 | }; | |
718e3744 | 101 | |
67174041 AS |
102 | /* |
103 | * bgp_table_init | |
104 | */ | |
105 | struct bgp_table * | |
106 | bgp_table_init (afi_t afi, safi_t safi) | |
718e3744 | 107 | { |
67174041 | 108 | struct bgp_table *rt; |
718e3744 | 109 | |
67174041 | 110 | rt = XCALLOC (MTYPE_BGP_TABLE, sizeof (struct bgp_table)); |
718e3744 | 111 | |
67174041 | 112 | rt->route_table = route_table_init_with_delegate (&bgp_table_delegate); |
718e3744 | 113 | |
67174041 AS |
114 | /* |
115 | * Set up back pointer to bgp_table. | |
116 | */ | |
117 | rt->route_table->info = rt; | |
718e3744 | 118 | |
67174041 AS |
119 | bgp_table_lock (rt); |
120 | rt->type = BGP_TABLE_MAIN; | |
121 | rt->afi = afi; | |
122 | rt->safi = safi; | |
cbdfbaa5 | 123 | |
67174041 | 124 | return rt; |
cbdfbaa5 | 125 | } |