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718e3744 | 1 | /* |
2 | * Copyright (C) 2001 Yasuhiro Ohara | |
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 | |
18 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | * Boston, MA 02111-1307, USA. | |
20 | */ | |
21 | ||
22 | #include <zebra.h> | |
23 | ||
24 | #include "log.h" | |
25 | #include "memory.h" | |
26 | ||
27 | #include "ospf6_hook.h" | |
28 | ||
29 | struct ospf6_hook_master neighbor_hook; | |
30 | struct ospf6_hook_master interface_hook; | |
31 | struct ospf6_hook_master area_hook; | |
32 | struct ospf6_hook_master top_hook; | |
33 | struct ospf6_hook_master database_hook; | |
34 | struct ospf6_hook_master intra_topology_hook; | |
35 | struct ospf6_hook_master inter_topology_hook; | |
36 | struct ospf6_hook_master route_hook; | |
37 | struct ospf6_hook_master redistribute_hook; | |
38 | ||
39 | static struct ospf6_hook * | |
40 | ospf6_hook_create () | |
41 | { | |
42 | struct ospf6_hook *new; | |
43 | new = XMALLOC (MTYPE_OSPF6_OTHER, sizeof (struct ospf6_hook)); | |
44 | if (new == NULL) | |
45 | return NULL; | |
46 | memset (new, 0, sizeof (struct ospf6_hook)); | |
47 | return new; | |
48 | } | |
49 | ||
50 | static void | |
51 | ospf6_hook_delete (struct ospf6_hook *hook) | |
52 | { | |
53 | XFREE (MTYPE_OSPF6_OTHER, hook); | |
54 | } | |
55 | ||
56 | static int | |
57 | ospf6_hook_issame (struct ospf6_hook *hook1, struct ospf6_hook *hook2) | |
58 | { | |
59 | if (hook1->name && hook2->name && | |
60 | strcmp (hook1->name, hook2->name) != 0) | |
61 | return 0; | |
62 | if (hook1->hook_add != hook2->hook_add) | |
63 | return 0; | |
64 | if (hook1->hook_change != hook2->hook_change) | |
65 | return 0; | |
66 | if (hook1->hook_remove != hook2->hook_remove) | |
67 | return 0; | |
68 | return 1; | |
69 | } | |
70 | ||
71 | void | |
72 | ospf6_hook_register (struct ospf6_hook *hook, | |
73 | struct ospf6_hook_master *master) | |
74 | { | |
75 | struct ospf6_hook *new; | |
76 | ||
77 | new = ospf6_hook_create (); | |
78 | ||
79 | if (hook->name) | |
80 | new->name = strdup (hook->name); | |
81 | new->hook_add = hook->hook_add; | |
82 | new->hook_change = hook->hook_change; | |
83 | new->hook_remove = hook->hook_remove; | |
84 | ||
85 | new->prev = master->tail; | |
86 | if (master->tail) | |
87 | master->tail->next = new; | |
88 | ||
89 | master->tail = new; | |
90 | if (! master->head) | |
91 | master->head = new; | |
92 | ||
93 | master->count++; | |
94 | ||
95 | if (IS_OSPF6_DUMP_HOOK) | |
96 | { | |
97 | zlog_info ("HOOK: Register hook%s%s%s%s", | |
98 | (hook->name ? " " : ""), | |
99 | (hook->name ? hook->name : ""), | |
100 | (master->name ? " to " : ""), | |
101 | (master->name ? master->name : "")); | |
102 | } | |
103 | } | |
104 | ||
105 | void | |
106 | ospf6_hook_unregister (struct ospf6_hook *req, | |
107 | struct ospf6_hook_master *master) | |
108 | { | |
109 | struct ospf6_hook *hook; | |
110 | ||
111 | for (hook = master->head; hook; hook = hook->next) | |
112 | { | |
113 | if (ospf6_hook_issame (hook, req)) | |
114 | break; | |
115 | } | |
116 | if (! hook) | |
117 | return; | |
118 | ||
119 | if (hook->prev) | |
120 | hook->prev->next = hook->next; | |
121 | if (hook->next) | |
122 | hook->next->prev = hook->prev; | |
123 | if (master->head == hook) | |
124 | master->head = hook->next; | |
125 | if (master->tail == hook) | |
126 | master->tail = hook->prev; | |
127 | ||
128 | master->count--; | |
129 | ||
130 | if (IS_OSPF6_DUMP_HOOK) | |
131 | { | |
132 | zlog_info ("HOOK: Unregister hook%s%s%s%s", | |
133 | (hook->name ? " " : ""), | |
134 | (hook->name ? hook->name : ""), | |
135 | (master->name ? " to " : ""), | |
136 | (master->name ? master->name : "")); | |
137 | } | |
138 | ||
139 | if (hook->name) | |
140 | free (hook->name); | |
141 | ospf6_hook_delete (hook); | |
142 | } | |
143 | ||
144 | void | |
145 | ospf6_hook_unregister_all (struct ospf6_hook_master *master) | |
146 | { | |
147 | struct ospf6_hook *hook, *next; | |
148 | ||
149 | for (hook = master->head; hook; hook = next) | |
150 | { | |
151 | next = hook->next; | |
152 | ospf6_hook_delete (hook); | |
153 | } | |
154 | ||
155 | master->head = NULL; | |
156 | master->tail = NULL; | |
157 | master->count = 0; | |
158 | } | |
159 | ||
160 | ||
161 | void | |
162 | ospf6_hook_init () | |
163 | { | |
164 | neighbor_hook.name = "Neighbor Hooklist"; | |
165 | interface_hook.name = "Interface Hooklist"; | |
166 | area_hook.name = "Area Hooklist"; | |
167 | top_hook.name = "Top Hooklist"; | |
168 | database_hook.name = "Database Hooklist"; | |
169 | intra_topology_hook.name = "IntraTopology Hooklist"; | |
170 | inter_topology_hook.name = "InterTopology Hooklist"; | |
171 | route_hook.name = "Route Hooklist"; | |
172 | } | |
173 | ||
174 |