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ospf6d: CVE-2011-3324 (DD LSA assertion)
[mirror_frr.git] / ospf6d / ospf6_intra.h
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718e3744 1/*
508e53e2 2 * Copyright (C) 2003 Yasuhiro Ohara
718e3744 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#ifndef OSPF6_INTRA_H
23#define OSPF6_INTRA_H
24
cb4b8845
PJ		 25/* Debug option */
26extern unsigned char conf_debug_ospf6_brouter;
27extern u_int32_t conf_debug_ospf6_brouter_specific_router_id;
28extern u_int32_t conf_debug_ospf6_brouter_specific_area_id;
29#define OSPF6_DEBUG_BROUTER_SUMMARY 0x01
30#define OSPF6_DEBUG_BROUTER_SPECIFIC_ROUTER 0x02
31#define OSPF6_DEBUG_BROUTER_SPECIFIC_AREA 0x04
32#define OSPF6_DEBUG_BROUTER_ON() \
33 (conf_debug_ospf6_brouter |= OSPF6_DEBUG_BROUTER_SUMMARY)
34#define OSPF6_DEBUG_BROUTER_OFF() \
35 (conf_debug_ospf6_brouter &= ~OSPF6_DEBUG_BROUTER_SUMMARY)
36#define IS_OSPF6_DEBUG_BROUTER \
37 (conf_debug_ospf6_brouter & OSPF6_DEBUG_BROUTER_SUMMARY)
38
39#define OSPF6_DEBUG_BROUTER_SPECIFIC_ROUTER_ON(router_id) \
40 do { \
41 conf_debug_ospf6_brouter_specific_router_id = (router_id); \
42 conf_debug_ospf6_brouter |= OSPF6_DEBUG_BROUTER_SPECIFIC_ROUTER; \
43 } while (0)
44#define OSPF6_DEBUG_BROUTER_SPECIFIC_ROUTER_OFF() \
45 do { \
46 conf_debug_ospf6_brouter_specific_router_id = 0; \
47 conf_debug_ospf6_brouter &= ~OSPF6_DEBUG_BROUTER_SPECIFIC_ROUTER; \
48 } while (0)
49#define IS_OSPF6_DEBUG_BROUTER_SPECIFIC_ROUTER \
50 (conf_debug_ospf6_brouter & OSPF6_DEBUG_BROUTER_SPECIFIC_ROUTER)
51#define IS_OSPF6_DEBUG_BROUTER_SPECIFIC_ROUTER_ID(router_id) \
52 (IS_OSPF6_DEBUG_BROUTER_SPECIFIC_ROUTER && \
53 conf_debug_ospf6_brouter_specific_router_id == (router_id))
54
55#define OSPF6_DEBUG_BROUTER_SPECIFIC_AREA_ON(area_id) \
56 do { \
57 conf_debug_ospf6_brouter_specific_area_id = (area_id); \
58 conf_debug_ospf6_brouter |= OSPF6_DEBUG_BROUTER_SPECIFIC_AREA; \
59 } while (0)
60#define OSPF6_DEBUG_BROUTER_SPECIFIC_AREA_OFF() \
61 do { \
62 conf_debug_ospf6_brouter_specific_area_id = 0; \
63 conf_debug_ospf6_brouter &= ~OSPF6_DEBUG_BROUTER_SPECIFIC_AREA; \
64 } while (0)
65#define IS_OSPF6_DEBUG_BROUTER_SPECIFIC_AREA \
66 (conf_debug_ospf6_brouter & OSPF6_DEBUG_BROUTER_SPECIFIC_AREA)
67#define IS_OSPF6_DEBUG_BROUTER_SPECIFIC_AREA_ID(area_id) \
68 (IS_OSPF6_DEBUG_BROUTER_SPECIFIC_AREA && \
69 conf_debug_ospf6_brouter_specific_area_id == (area_id))
70
508e53e2 71/* Router-LSA */
72struct ospf6_router_lsa
73{
74 u_char bits;
75 u_char options[3];
76 /* followed by ospf6_router_lsdesc(s) */
77};
78
79/* Link State Description in Router-LSA */
80struct ospf6_router_lsdesc
81{
82 u_char type;
83 u_char reserved;
84 u_int16_t metric; /* output cost */
85 u_int32_t interface_id;
86 u_int32_t neighbor_interface_id;
87 u_int32_t neighbor_router_id;
88};
89
90#define OSPF6_ROUTER_LSDESC_POINTTOPOINT 1
91#define OSPF6_ROUTER_LSDESC_TRANSIT_NETWORK 2
92#define OSPF6_ROUTER_LSDESC_STUB_NETWORK 3
93#define OSPF6_ROUTER_LSDESC_VIRTUAL_LINK 4
94
95#define ROUTER_LSDESC_IS_TYPE(t,x) \
96 ((((struct ospf6_router_lsdesc *)(x))->type == \
97 OSPF6_ROUTER_LSDESC_ ## t) ? 1 : 0)
98#define ROUTER_LSDESC_GET_METRIC(x) \
99 (ntohs (((struct ospf6_router_lsdesc *)(x))->metric))
100#define ROUTER_LSDESC_GET_IFID(x) \
101 (ntohl (((struct ospf6_router_lsdesc *)(x))->interface_id))
102#define ROUTER_LSDESC_GET_NBR_IFID(x) \
103 (ntohl (((struct ospf6_router_lsdesc *)(x))->neighbor_interface_id))
104#define ROUTER_LSDESC_GET_NBR_ROUTERID(x) \
105 (((struct ospf6_router_lsdesc *)(x))->neighbor_router_id)
106
107/* Network-LSA */
108struct ospf6_network_lsa
109{
110 u_char reserved;
111 u_char options[3];
112 /* followed by ospf6_netowrk_lsd(s) */
113};
114
115/* Link State Description in Router-LSA */
116struct ospf6_network_lsdesc
117{
118 u_int32_t router_id;
119};
120#define NETWORK_LSDESC_GET_NBR_ROUTERID(x) \
121 (((struct ospf6_network_lsdesc *)(x))->router_id)
122
123/* Link-LSA */
124struct ospf6_link_lsa
125{
126 u_char priority;
127 u_char options[3];
128 struct in6_addr linklocal_addr;
129 u_int32_t prefix_num;
130 /* followed by ospf6 prefix(es) */
131};
132
133/* Intra-Area-Prefix-LSA */
134struct ospf6_intra_prefix_lsa
135{
136 u_int16_t prefix_num;
137 u_int16_t ref_type;
138 u_int32_t ref_id;
139 u_int32_t ref_adv_router;
140 /* followed by ospf6 prefix(es) */
141};
142
143\f
144#define OSPF6_ROUTER_LSA_SCHEDULE(oa) \
145 do { \
146 if (! (oa)->thread_router_lsa) \
147 (oa)->thread_router_lsa = \
148 thread_add_event (master, ospf6_router_lsa_originate, oa, 0); \
149 } while (0)
150#define OSPF6_NETWORK_LSA_SCHEDULE(oi) \
151 do { \
152 if (! (oi)->thread_network_lsa) \
153 (oi)->thread_network_lsa = \
154 thread_add_event (master, ospf6_network_lsa_originate, oi, 0); \
155 } while (0)
156#define OSPF6_LINK_LSA_SCHEDULE(oi) \
157 do { \
158 if (! (oi)->thread_link_lsa) \
159 (oi)->thread_link_lsa = \
160 thread_add_event (master, ospf6_link_lsa_originate, oi, 0); \
161 } while (0)
162#define OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oa) \
163 do { \
164 if (! (oa)->thread_intra_prefix_lsa) \
165 (oa)->thread_intra_prefix_lsa = \
166 thread_add_event (master, ospf6_intra_prefix_lsa_originate_stub, \
167 oa, 0); \
168 } while (0)
169#define OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi) \
170 do { \
171 if (! (oi)->thread_intra_prefix_lsa) \
172 (oi)->thread_intra_prefix_lsa = \
173 thread_add_event (master, ospf6_intra_prefix_lsa_originate_transit, \
174 oi, 0); \
175 } while (0)
176
6452df09 177#define OSPF6_NETWORK_LSA_EXECUTE(oi) \
178 do { \
179 THREAD_OFF ((oi)->thread_network_lsa); \
180 thread_execute (master, ospf6_network_lsa_originate, oi, 0); \
181 } while (0)
182#define OSPF6_INTRA_PREFIX_LSA_EXECUTE_TRANSIT(oi) \
183 do { \
184 THREAD_OFF ((oi)->thread_intra_prefix_lsa); \
185 thread_execute (master, ospf6_intra_prefix_lsa_originate_transit, oi, 0); \
186 } while (0)
187
188
508e53e2 189/* Function Prototypes */
6ac29a51
PJ		 190extern char *ospf6_router_lsdesc_lookup (u_char type, u_int32_t interface_id,
191 u_int32_t neighbor_interface_id,
192 u_int32_t neighbor_router_id,
193 struct ospf6_lsa *lsa);
194extern char *ospf6_network_lsdesc_lookup (u_int32_t router_id,
195 struct ospf6_lsa *lsa);
196
197extern int ospf6_router_lsa_originate (struct thread *);
198extern int ospf6_network_lsa_originate (struct thread *);
199extern int ospf6_link_lsa_originate (struct thread *);
200extern int ospf6_intra_prefix_lsa_originate_transit (struct thread *);
201extern int ospf6_intra_prefix_lsa_originate_stub (struct thread *);
202extern void ospf6_intra_prefix_lsa_add (struct ospf6_lsa *lsa);
203extern void ospf6_intra_prefix_lsa_remove (struct ospf6_lsa *lsa);
204
205extern void ospf6_intra_route_calculation (struct ospf6_area *oa);
206extern void ospf6_intra_brouter_calculation (struct ospf6_area *oa);
207
208extern void ospf6_intra_init (void);
209
210extern int config_write_ospf6_debug_brouter (struct vty *vty);
211extern void install_element_ospf6_debug_brouter (void);
cb4b8845 212
508e53e2 213#endif /* OSPF6_LSA_H */
718e3744 214
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