2 * Copyright (C) 2003 Yasuhiro Ohara
4 * This file is part of GNU Zebra.
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
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.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 #define OSPF6_LSA_DEBUG 0x01
26 #define OSPF6_LSA_DEBUG_ORIGINATE 0x02
27 #define OSPF6_LSA_DEBUG_EXAMIN 0x04
28 #define OSPF6_LSA_DEBUG_FLOOD 0x08
30 #define IS_OSPF6_DEBUG_LSA(name) \
31 (ospf6_lstype_debug(htons(OSPF6_LSTYPE_##name)) & OSPF6_LSA_DEBUG)
32 #define IS_OSPF6_DEBUG_ORIGINATE(name) \
33 (ospf6_lstype_debug(htons(OSPF6_LSTYPE_##name)) \
34 & OSPF6_LSA_DEBUG_ORIGINATE)
35 #define IS_OSPF6_DEBUG_EXAMIN(name) \
36 (ospf6_lstype_debug(htons(OSPF6_LSTYPE_##name)) \
37 & OSPF6_LSA_DEBUG_EXAMIN)
38 #define IS_OSPF6_DEBUG_LSA_TYPE(type) \
39 (ospf6_lstype_debug(type) & OSPF6_LSA_DEBUG)
40 #define IS_OSPF6_DEBUG_ORIGINATE_TYPE(type) \
41 (ospf6_lstype_debug(type) & OSPF6_LSA_DEBUG_ORIGINATE)
42 #define IS_OSPF6_DEBUG_EXAMIN_TYPE(type) \
43 (ospf6_lstype_debug(type) & OSPF6_LSA_DEBUG_EXAMIN)
44 #define IS_OSPF6_DEBUG_FLOOD_TYPE(type) \
45 (ospf6_lstype_debug(type) & OSPF6_LSA_DEBUG_FLOOD)
49 #define OSPF6_MAX_LSASIZE 4096
52 #define OSPF6_LSTYPE_UNKNOWN 0x0000
53 #define OSPF6_LSTYPE_ROUTER 0x2001
54 #define OSPF6_LSTYPE_NETWORK 0x2002
55 #define OSPF6_LSTYPE_INTER_PREFIX 0x2003
56 #define OSPF6_LSTYPE_INTER_ROUTER 0x2004
57 #define OSPF6_LSTYPE_AS_EXTERNAL 0x4005
58 #define OSPF6_LSTYPE_GROUP_MEMBERSHIP 0x2006
59 #define OSPF6_LSTYPE_TYPE_7 0x2007
60 #define OSPF6_LSTYPE_LINK 0x0008
61 #define OSPF6_LSTYPE_INTRA_PREFIX 0x2009
62 #define OSPF6_LSTYPE_SIZE 0x000a
64 /* Masks for LS Type : RFC 2740 A.4.2.1 "LS type" */
65 #define OSPF6_LSTYPE_UBIT_MASK 0x8000
66 #define OSPF6_LSTYPE_SCOPE_MASK 0x6000
67 #define OSPF6_LSTYPE_FCODE_MASK 0x1fff
70 #define OSPF6_SCOPE_LINKLOCAL 0x0000
71 #define OSPF6_SCOPE_AREA 0x2000
72 #define OSPF6_SCOPE_AS 0x4000
73 #define OSPF6_SCOPE_RESERVED 0x6000
75 /* XXX U-bit handling should be treated here */
76 #define OSPF6_LSA_SCOPE(type) (ntohs(type) & OSPF6_LSTYPE_SCOPE_MASK)
79 #define OSPF6_LSA_HEADER_SIZE 20U
80 struct ospf6_lsa_header
{
81 uint16_t age
; /* LS age */
82 uint16_t type
; /* LS type */
83 uint32_t id
; /* Link State ID */
84 uint32_t adv_router
; /* Advertising Router */
85 uint32_t seqnum
; /* LS sequence number */
86 uint16_t checksum
; /* LS checksum */
87 uint16_t length
; /* LSA length */
90 #define OSPF6_LSA_HEADER_END(h) ((caddr_t)(h) + sizeof(struct ospf6_lsa_header))
91 #define OSPF6_LSA_SIZE(h) (ntohs(((struct ospf6_lsa_header *)(h))->length))
92 #define OSPF6_LSA_END(h) \
93 ((caddr_t)(h) + ntohs(((struct ospf6_lsa_header *)(h))->length))
94 #define OSPF6_LSA_IS_TYPE(t, L) \
95 ((L)->header->type == htons(OSPF6_LSTYPE_##t) ? 1 : 0)
96 #define OSPF6_LSA_IS_SAME(L1, L2) \
97 ((L1)->header->adv_router == (L2)->header->adv_router \
98 && (L1)->header->id == (L2)->header->id \
99 && (L1)->header->type == (L2)->header->type)
100 #define OSPF6_LSA_IS_MATCH(t, i, a, L) \
101 ((L)->header->adv_router == (a) && (L)->header->id == (i) \
102 && (L)->header->type == (t))
103 #define OSPF6_LSA_IS_DIFFER(L1, L2) ospf6_lsa_is_differ (L1, L2)
104 #define OSPF6_LSA_IS_MAXAGE(L) (ospf6_lsa_age_current (L) == OSPF_LSA_MAXAGE)
105 #define OSPF6_LSA_IS_CHANGED(L1, L2) ospf6_lsa_is_changed (L1, L2)
106 #define OSPF6_LSA_IS_SEQWRAP(L) ((L)->header->seqnum == htonl(OSPF_MAX_SEQUENCE_NUMBER + 1))
109 char name
[64]; /* dump string */
111 struct route_node
*rn
;
113 unsigned char lock
; /* reference counter */
114 unsigned char flag
; /* special meaning (e.g. floodback) */
116 struct timeval birth
; /* tv_sec when LS age 0 */
117 struct timeval originated
; /* used by MinLSInterval check */
118 struct timeval received
; /* used by MinLSArrival check */
119 struct timeval installed
;
121 struct thread
*expire
;
122 struct thread
*refresh
; /* For self-originated LSA */
126 struct ospf6_lsdb
*lsdb
;
129 struct ospf6_lsa_header
*header
;
132 #define OSPF6_LSA_HEADERONLY 0x01
133 #define OSPF6_LSA_FLOODBACK 0x02
134 #define OSPF6_LSA_DUPLICATE 0x04
135 #define OSPF6_LSA_IMPLIEDACK 0x08
136 #define OSPF6_LSA_UNAPPROVED 0x10
137 #define OSPF6_LSA_SEQWRAPPED 0x20
139 struct ospf6_lsa_handler
{
140 uint16_t lh_type
; /* host byte order */
142 const char *lh_short_name
;
143 int (*lh_show
)(struct vty
*, struct ospf6_lsa
*);
144 char *(*lh_get_prefix_str
)(struct ospf6_lsa
*, char *buf
,
145 int buflen
, int pos
);
150 #define OSPF6_LSA_IS_KNOWN(t) \
151 (ospf6_get_lsa_handler(t)->lh_type != OSPF6_LSTYPE_UNKNOWN ? 1 : 0)
153 extern vector ospf6_lsa_handler_vector
;
155 /* Macro for LSA Origination */
156 /* addr is (struct prefix *) */
157 #define CONTINUE_IF_ADDRESS_LINKLOCAL(debug, addr) \
158 if (IN6_IS_ADDR_LINKLOCAL(&(addr)->u.prefix6)) { \
159 char buf[PREFIX2STR_BUFFER]; \
160 prefix2str(addr, buf, sizeof(buf)); \
162 zlog_debug("Filter out Linklocal: %s", buf); \
166 #define CONTINUE_IF_ADDRESS_UNSPECIFIED(debug, addr) \
167 if (IN6_IS_ADDR_UNSPECIFIED(&(addr)->u.prefix6)) { \
168 char buf[PREFIX2STR_BUFFER]; \
169 prefix2str(addr, buf, sizeof(buf)); \
171 zlog_debug("Filter out Unspecified: %s", buf); \
175 #define CONTINUE_IF_ADDRESS_LOOPBACK(debug, addr) \
176 if (IN6_IS_ADDR_LOOPBACK(&(addr)->u.prefix6)) { \
177 char buf[PREFIX2STR_BUFFER]; \
178 prefix2str(addr, buf, sizeof(buf)); \
180 zlog_debug("Filter out Loopback: %s", buf); \
184 #define CONTINUE_IF_ADDRESS_V4COMPAT(debug, addr) \
185 if (IN6_IS_ADDR_V4COMPAT(&(addr)->u.prefix6)) { \
186 char buf[PREFIX2STR_BUFFER]; \
187 prefix2str(addr, buf, sizeof(buf)); \
189 zlog_debug("Filter out V4Compat: %s", buf); \
193 #define CONTINUE_IF_ADDRESS_V4MAPPED(debug, addr) \
194 if (IN6_IS_ADDR_V4MAPPED(&(addr)->u.prefix6)) { \
195 char buf[PREFIX2STR_BUFFER]; \
196 prefix2str(addr, buf, sizeof(buf)); \
198 zlog_debug("Filter out V4Mapped: %s", buf); \
203 /* Function Prototypes */
204 extern const char *ospf6_lstype_name(uint16_t type
);
205 extern const char *ospf6_lstype_short_name(uint16_t type
);
206 extern uint8_t ospf6_lstype_debug(uint16_t type
);
207 extern int ospf6_lsa_is_differ(struct ospf6_lsa
*lsa1
, struct ospf6_lsa
*lsa2
);
208 extern int ospf6_lsa_is_changed(struct ospf6_lsa
*lsa1
, struct ospf6_lsa
*lsa2
);
209 extern uint16_t ospf6_lsa_age_current(struct ospf6_lsa
*);
210 extern void ospf6_lsa_age_update_to_send(struct ospf6_lsa
*, uint32_t);
211 extern void ospf6_lsa_premature_aging(struct ospf6_lsa
*);
212 extern int ospf6_lsa_compare(struct ospf6_lsa
*, struct ospf6_lsa
*);
214 extern char *ospf6_lsa_printbuf(struct ospf6_lsa
*lsa
, char *buf
, int size
);
215 extern void ospf6_lsa_header_print_raw(struct ospf6_lsa_header
*header
);
216 extern void ospf6_lsa_header_print(struct ospf6_lsa
*lsa
);
217 extern void ospf6_lsa_show_summary_header(struct vty
*vty
);
218 extern void ospf6_lsa_show_summary(struct vty
*vty
, struct ospf6_lsa
*lsa
);
219 extern void ospf6_lsa_show_dump(struct vty
*vty
, struct ospf6_lsa
*lsa
);
220 extern void ospf6_lsa_show_internal(struct vty
*vty
, struct ospf6_lsa
*lsa
);
221 extern void ospf6_lsa_show(struct vty
*vty
, struct ospf6_lsa
*lsa
);
223 extern struct ospf6_lsa
*ospf6_lsa_create(struct ospf6_lsa_header
*header
);
224 extern struct ospf6_lsa
*
225 ospf6_lsa_create_headeronly(struct ospf6_lsa_header
*header
);
226 extern void ospf6_lsa_delete(struct ospf6_lsa
*lsa
);
227 extern struct ospf6_lsa
*ospf6_lsa_copy(struct ospf6_lsa
*);
229 extern void ospf6_lsa_lock(struct ospf6_lsa
*);
230 extern void ospf6_lsa_unlock(struct ospf6_lsa
*);
232 extern int ospf6_lsa_expire(struct thread
*);
233 extern int ospf6_lsa_refresh(struct thread
*);
235 extern unsigned short ospf6_lsa_checksum(struct ospf6_lsa_header
*);
236 extern int ospf6_lsa_checksum_valid(struct ospf6_lsa_header
*);
237 extern int ospf6_lsa_prohibited_duration(uint16_t type
, uint32_t id
,
238 uint32_t adv_router
, void *scope
);
240 extern void ospf6_install_lsa_handler(const struct ospf6_lsa_handler
*handler
);
241 extern const struct ospf6_lsa_handler
*ospf6_get_lsa_handler(uint16_t type
);
243 extern void ospf6_lsa_init(void);
244 extern void ospf6_lsa_terminate(void);
246 extern int config_write_ospf6_debug_lsa(struct vty
*vty
);
247 extern void install_element_ospf6_debug_lsa(void);
248 extern void ospf6_lsa_age_set(struct ospf6_lsa
*lsa
);
249 extern void ospf6_flush_self_originated_lsas_now(void);
251 #endif /* OSPF6_LSA_H */