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)) & \
33 #define IS_OSPF6_DEBUG_ORIGINATE(name) \
34 (ospf6_lstype_debug (htons (OSPF6_LSTYPE_ ## name)) & \
35 OSPF6_LSA_DEBUG_ORIGINATE)
36 #define IS_OSPF6_DEBUG_EXAMIN(name) \
37 (ospf6_lstype_debug (htons (OSPF6_LSTYPE_ ## name)) & \
38 OSPF6_LSA_DEBUG_EXAMIN)
39 #define IS_OSPF6_DEBUG_LSA_TYPE(type) \
40 (ospf6_lstype_debug (type) & OSPF6_LSA_DEBUG)
41 #define IS_OSPF6_DEBUG_ORIGINATE_TYPE(type) \
42 (ospf6_lstype_debug (type) & OSPF6_LSA_DEBUG_ORIGINATE)
43 #define IS_OSPF6_DEBUG_EXAMIN_TYPE(type) \
44 (ospf6_lstype_debug (type) & OSPF6_LSA_DEBUG_EXAMIN)
45 #define IS_OSPF6_DEBUG_FLOOD_TYPE(type) \
46 (ospf6_lstype_debug (type) & OSPF6_LSA_DEBUG_FLOOD)
50 #define OSPF6_MAX_LSASIZE 4096
53 #define OSPF6_LSTYPE_UNKNOWN 0x0000
54 #define OSPF6_LSTYPE_ROUTER 0x2001
55 #define OSPF6_LSTYPE_NETWORK 0x2002
56 #define OSPF6_LSTYPE_INTER_PREFIX 0x2003
57 #define OSPF6_LSTYPE_INTER_ROUTER 0x2004
58 #define OSPF6_LSTYPE_AS_EXTERNAL 0x4005
59 #define OSPF6_LSTYPE_GROUP_MEMBERSHIP 0x2006
60 #define OSPF6_LSTYPE_TYPE_7 0x2007
61 #define OSPF6_LSTYPE_LINK 0x0008
62 #define OSPF6_LSTYPE_INTRA_PREFIX 0x2009
63 #define OSPF6_LSTYPE_SIZE 0x000a
65 /* Masks for LS Type : RFC 2740 A.4.2.1 "LS type" */
66 #define OSPF6_LSTYPE_UBIT_MASK 0x8000
67 #define OSPF6_LSTYPE_SCOPE_MASK 0x6000
68 #define OSPF6_LSTYPE_FCODE_MASK 0x1fff
71 #define OSPF6_SCOPE_LINKLOCAL 0x0000
72 #define OSPF6_SCOPE_AREA 0x2000
73 #define OSPF6_SCOPE_AS 0x4000
74 #define OSPF6_SCOPE_RESERVED 0x6000
76 /* XXX U-bit handling should be treated here */
77 #define OSPF6_LSA_SCOPE(type) \
78 (ntohs (type) & OSPF6_LSTYPE_SCOPE_MASK)
81 #define OSPF6_LSA_HEADER_SIZE 20U
82 struct ospf6_lsa_header
84 u_int16_t age
; /* LS age */
85 u_int16_t type
; /* LS type */
86 u_int32_t id
; /* Link State ID */
87 u_int32_t adv_router
; /* Advertising Router */
88 u_int32_t seqnum
; /* LS sequence number */
89 u_int16_t checksum
; /* LS checksum */
90 u_int16_t length
; /* LSA length */
93 #define OSPF6_LSA_HEADER_END(h) \
94 ((caddr_t)(h) + sizeof (struct ospf6_lsa_header))
95 #define OSPF6_LSA_SIZE(h) \
96 (ntohs (((struct ospf6_lsa_header *) (h))->length))
97 #define OSPF6_LSA_END(h) \
98 ((caddr_t)(h) + ntohs (((struct ospf6_lsa_header *) (h))->length))
99 #define OSPF6_LSA_IS_TYPE(t, L) \
100 ((L)->header->type == htons (OSPF6_LSTYPE_ ## t) ? 1 : 0)
101 #define OSPF6_LSA_IS_SAME(L1, L2) \
102 ((L1)->header->adv_router == (L2)->header->adv_router && \
103 (L1)->header->id == (L2)->header->id && \
104 (L1)->header->type == (L2)->header->type)
105 #define OSPF6_LSA_IS_MATCH(t, i, a, L) \
106 ((L)->header->adv_router == (a) && (L)->header->id == (i) && \
107 (L)->header->type == (t))
108 #define OSPF6_LSA_IS_DIFFER(L1, L2) ospf6_lsa_is_differ (L1, L2)
109 #define OSPF6_LSA_IS_MAXAGE(L) (ospf6_lsa_age_current (L) == OSPF_LSA_MAXAGE)
110 #define OSPF6_LSA_IS_CHANGED(L1, L2) ospf6_lsa_is_changed (L1, L2)
111 #define OSPF6_LSA_IS_SEQWRAP(L) ((L)->header->seqnum == htonl(OSPF_MAX_SEQUENCE_NUMBER + 1))
116 char name
[64]; /* dump string */
118 struct route_node
*rn
;
120 unsigned char lock
; /* reference counter */
121 unsigned char flag
; /* special meaning (e.g. floodback) */
123 struct timeval birth
; /* tv_sec when LS age 0 */
124 struct timeval originated
; /* used by MinLSInterval check */
125 struct timeval received
; /* used by MinLSArrival check */
126 struct timeval installed
;
128 struct thread
*expire
;
129 struct thread
*refresh
; /* For self-originated LSA */
133 struct ospf6_lsdb
*lsdb
;
136 struct ospf6_lsa_header
*header
;
139 #define OSPF6_LSA_HEADERONLY 0x01
140 #define OSPF6_LSA_FLOODBACK 0x02
141 #define OSPF6_LSA_DUPLICATE 0x04
142 #define OSPF6_LSA_IMPLIEDACK 0x08
143 #define OSPF6_LSA_UNAPPROVED 0x10
144 #define OSPF6_LSA_SEQWRAPPED 0x20
146 struct ospf6_lsa_handler
148 u_int16_t type
; /* host byte order */
150 const char *short_name
;
151 int (*show
) (struct vty
*, struct ospf6_lsa
*);
152 char *(*get_prefix_str
) (struct ospf6_lsa
*, char *buf
, int buflen
, int pos
);
156 extern struct ospf6_lsa_handler unknown_handler
;
157 #define OSPF6_LSA_IS_KNOWN(type) \
158 (ospf6_get_lsa_handler (type) != &unknown_handler ? 1 : 0)
160 extern vector ospf6_lsa_handler_vector
;
162 /* Macro for LSA Origination */
163 /* addr is (struct prefix *) */
164 #define CONTINUE_IF_ADDRESS_LINKLOCAL(debug,addr) \
165 if (IN6_IS_ADDR_LINKLOCAL (&(addr)->u.prefix6)) \
167 char buf[PREFIX2STR_BUFFER]; \
168 prefix2str (addr, buf, sizeof (buf)); \
170 zlog_debug ("Filter out Linklocal: %s", buf); \
174 #define CONTINUE_IF_ADDRESS_UNSPECIFIED(debug,addr) \
175 if (IN6_IS_ADDR_UNSPECIFIED (&(addr)->u.prefix6)) \
177 char buf[PREFIX2STR_BUFFER]; \
178 prefix2str (addr, buf, sizeof (buf)); \
180 zlog_debug ("Filter out Unspecified: %s", buf);\
184 #define CONTINUE_IF_ADDRESS_LOOPBACK(debug,addr) \
185 if (IN6_IS_ADDR_LOOPBACK (&(addr)->u.prefix6)) \
187 char buf[PREFIX2STR_BUFFER]; \
188 prefix2str (addr, buf, sizeof (buf)); \
190 zlog_debug ("Filter out Loopback: %s", buf); \
194 #define CONTINUE_IF_ADDRESS_V4COMPAT(debug,addr) \
195 if (IN6_IS_ADDR_V4COMPAT (&(addr)->u.prefix6)) \
197 char buf[PREFIX2STR_BUFFER]; \
198 prefix2str (addr, buf, sizeof (buf)); \
200 zlog_debug ("Filter out V4Compat: %s", buf); \
204 #define CONTINUE_IF_ADDRESS_V4MAPPED(debug,addr) \
205 if (IN6_IS_ADDR_V4MAPPED (&(addr)->u.prefix6)) \
207 char buf[PREFIX2STR_BUFFER]; \
208 prefix2str (addr, buf, sizeof (buf)); \
210 zlog_debug ("Filter out V4Mapped: %s", buf); \
215 /* Function Prototypes */
216 extern const char *ospf6_lstype_name (u_int16_t type
);
217 extern const char *ospf6_lstype_short_name (u_int16_t type
);
218 extern u_char
ospf6_lstype_debug (u_int16_t type
);
219 extern int ospf6_lsa_is_differ (struct ospf6_lsa
*lsa1
, struct ospf6_lsa
*lsa2
);
220 extern int ospf6_lsa_is_changed (struct ospf6_lsa
*lsa1
, struct ospf6_lsa
*lsa2
);
221 extern u_int16_t
ospf6_lsa_age_current (struct ospf6_lsa
*);
222 extern void ospf6_lsa_age_update_to_send (struct ospf6_lsa
*, u_int32_t
);
223 extern void ospf6_lsa_premature_aging (struct ospf6_lsa
*);
224 extern int ospf6_lsa_compare (struct ospf6_lsa
*, struct ospf6_lsa
*);
226 extern char *ospf6_lsa_printbuf (struct ospf6_lsa
*lsa
, char *buf
, int size
);
227 extern void ospf6_lsa_header_print_raw (struct ospf6_lsa_header
*header
);
228 extern void ospf6_lsa_header_print (struct ospf6_lsa
*lsa
);
229 extern void ospf6_lsa_show_summary_header (struct vty
*vty
);
230 extern void ospf6_lsa_show_summary (struct vty
*vty
, struct ospf6_lsa
*lsa
);
231 extern void ospf6_lsa_show_dump (struct vty
*vty
, struct ospf6_lsa
*lsa
);
232 extern void ospf6_lsa_show_internal (struct vty
*vty
, struct ospf6_lsa
*lsa
);
233 extern void ospf6_lsa_show (struct vty
*vty
, struct ospf6_lsa
*lsa
);
235 extern struct ospf6_lsa
*ospf6_lsa_create (struct ospf6_lsa_header
*header
);
236 extern struct ospf6_lsa
*ospf6_lsa_create_headeronly (struct ospf6_lsa_header
*header
);
237 extern void ospf6_lsa_delete (struct ospf6_lsa
*lsa
);
238 extern struct ospf6_lsa
*ospf6_lsa_copy (struct ospf6_lsa
*);
240 extern void ospf6_lsa_lock (struct ospf6_lsa
*);
241 extern void ospf6_lsa_unlock (struct ospf6_lsa
*);
243 extern int ospf6_lsa_expire (struct thread
*);
244 extern int ospf6_lsa_refresh (struct thread
*);
246 extern unsigned short ospf6_lsa_checksum (struct ospf6_lsa_header
*);
247 extern int ospf6_lsa_checksum_valid (struct ospf6_lsa_header
*);
248 extern int ospf6_lsa_prohibited_duration (u_int16_t type
, u_int32_t id
,
249 u_int32_t adv_router
, void *scope
);
251 extern void ospf6_install_lsa_handler (struct ospf6_lsa_handler
*handler
);
252 extern struct ospf6_lsa_handler
*ospf6_get_lsa_handler (u_int16_t type
);
254 extern void ospf6_lsa_init (void);
255 extern void ospf6_lsa_terminate (void);
257 extern int config_write_ospf6_debug_lsa (struct vty
*vty
);
258 extern void install_element_ospf6_debug_lsa (void);
260 #endif /* OSPF6_LSA_H */