2 * RIPng related value and structure.
3 * Copyright (C) 1998 Kunihiro Ishiguro
5 * This file is part of GNU Zebra.
7 * GNU Zebra is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2, or (at your option) any
12 * GNU Zebra is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Zebra; see the file COPYING. If not, write to the Free
19 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
23 #ifndef _ZEBRA_RIPNG_RIPNGD_H
24 #define _ZEBRA_RIPNG_RIPNGD_H
29 /* RIPng version and port number. */
31 #define RIPNG_PORT_DEFAULT 521
32 #define RIPNG_VTY_PORT 2603
33 #define RIPNG_MAX_PACKET_SIZE 1500
34 #define RIPNG_PRIORITY_DEFAULT 0
37 #define RIPNG_REQUEST 1
38 #define RIPNG_RESPONSE 2
40 /* RIPng metric and multicast group address. */
41 #define RIPNG_METRIC_INFINITY 16
42 #define RIPNG_METRIC_NEXTHOP 0xff
43 #define RIPNG_GROUP "ff02::9"
46 #define RIPNG_UPDATE_TIMER_DEFAULT 30
47 #define RIPNG_TIMEOUT_TIMER_DEFAULT 180
48 #define RIPNG_GARBAGE_TIMER_DEFAULT 120
50 /* RIPng peer timeout value. */
51 #define RIPNG_PEER_TIMER_DEFAULT 180
53 /* Default config file name. */
54 #define RIPNG_DEFAULT_CONFIG "ripngd.conf"
56 /* RIPng route types. */
57 #define RIPNG_ROUTE_RTE 0
58 #define RIPNG_ROUTE_STATIC 1
59 #define RIPNG_ROUTE_DEFAULT 2
60 #define RIPNG_ROUTE_REDISTRIBUTE 3
61 #define RIPNG_ROUTE_INTERFACE 4
62 #define RIPNG_ROUTE_AGGREGATE 5
64 /* Interface send/receive configuration. */
65 #define RIPNG_SEND_UNSPEC 0
66 #define RIPNG_SEND_OFF 1
67 #define RIPNG_RECEIVE_UNSPEC 0
68 #define RIPNG_RECEIVE_OFF 1
70 /* RIP default route's accept/announce methods. */
71 #define RIPNG_DEFAULT_ADVERTISE_UNSPEC 0
72 #define RIPNG_DEFAULT_ADVERTISE_NONE 1
73 #define RIPNG_DEFAULT_ADVERTISE 2
75 #define RIPNG_DEFAULT_ACCEPT_UNSPEC 0
76 #define RIPNG_DEFAULT_ACCEPT_NONE 1
77 #define RIPNG_DEFAULT_ACCEPT 2
79 /* Default value for "default-metric" command. */
80 #define RIPNG_DEFAULT_METRIC_DEFAULT 1
82 /* For max RTE calculation. */
84 #define IPV6_HDRLEN 40
85 #endif /* IPV6_HDRLEN */
91 /* RIPng structure. */
97 /* RIPng Parameters.*/
100 unsigned long update_time;
101 unsigned long timeout_time;
102 unsigned long garbage_time;
105 int default_information;
107 /* Input/output buffer of RIPng. */
111 /* RIPng routing information base. */
112 struct route_table *table;
114 /* RIPng only static route information. */
115 struct route_table *route;
117 /* RIPng aggregate route information. */
118 struct route_table *aggregate;
121 struct thread *t_read;
122 struct thread *t_write;
123 struct thread *t_update;
124 struct thread *t_garbage;
125 struct thread *t_zebra;
127 /* Triggered update hack. */
129 struct thread *t_triggered_update;
130 struct thread *t_triggered_interval;
132 /* RIPng ECMP flag */
135 /* For redistribute route map. */
139 struct route_map *map;
142 } route_map[ZEBRA_ROUTE_MAX];
145 /* Routing table entry. */
148 struct in6_addr addr; /* RIPng destination prefix */
149 u_int16_t tag; /* RIPng tag */
150 u_char prefixlen; /* Length of the RIPng prefix */
151 u_char metric; /* Metric of the RIPng route */
152 /* The nexthop is stored by the structure
153 * ripng_nexthop within ripngd.c */
156 /* RIPNG send packet. */
165 /* Each route's information. */
168 /* This route's type. Static, ripng or aggregate. */
171 /* Sub type for static route. */
174 /* RIPng specific information */
175 struct in6_addr nexthop;
176 struct in6_addr from;
178 /* Which interface does this route come from. */
181 /* Metric of this route. */
184 /* Tag field of RIPng packet.*/
187 /* For aggregation. */
188 unsigned int suppress;
190 /* Flags of RIPng route. */
191 #define RIPNG_RTF_FIB 1
192 #define RIPNG_RTF_CHANGED 2
195 /* Garbage collect timer. */
196 struct thread *t_timeout;
197 struct thread *t_garbage_collect;
199 /* Route-map features - this variables can be changed. */
200 struct in6_addr nexthop_out;
205 struct route_node *rp;
210 /* RIPng tag structure. */
219 /* Multicast group. */
220 struct in6_addr maddr;
229 u_char split_horizon;
231 /* Poison reverse. */
232 u_char poison_reverse;
238 RIPNG_NO_SPLIT_HORIZON = 0,
240 RIPNG_SPLIT_HORIZON_POISONED_REVERSE
241 } split_horizon_policy_t;
243 /* RIPng specific interface configuration. */
244 struct ripng_interface
246 /* RIPng is enabled on this interface. */
248 int enable_interface;
250 /* RIPng is running on this interface. */
253 /* Split horizon flag. */
254 split_horizon_policy_t split_horizon;
255 split_horizon_policy_t split_horizon_default;
257 /* For filter type slot. */
258 #define RIPNG_FILTER_IN 0
259 #define RIPNG_FILTER_OUT 1
260 #define RIPNG_FILTER_MAX 2
263 struct access_list *list[RIPNG_FILTER_MAX];
266 struct prefix_list *prefix[RIPNG_FILTER_MAX];
269 struct route_map *routemap[RIPNG_FILTER_MAX];
273 /* RIPng tag configuration. */
274 struct ripng_tag *rtag;
278 /* Default information originate. */
279 u_char default_originate;
281 /* Default information only. */
284 /* Wake up thread. */
285 struct thread *t_wakeup;
287 /* Passive interface. */
291 /* RIPng peer information. */
295 struct in6_addr addr;
297 /* Peer RIPng tag value. */
300 /* Last update time. */
303 /* Peer RIP version. */
310 /* Timeout thread. */
311 struct thread *t_timeout;
314 /* All RIPng events. */
321 RIPNG_TRIGGERED_UPDATE,
324 /* RIPng timer on/off macro. */
325 #define RIPNG_TIMER_ON(T,F,V) \
328 (T) = thread_add_timer (master, (F), rinfo, (V)); \
331 #define RIPNG_TIMER_OFF(T) \
340 /* Extern variables. */
341 extern struct ripng *ripng;
343 extern struct thread_master *master;
346 extern void ripng_init (void);
347 extern void ripng_reset (void);
348 extern void ripng_clean (void);
349 extern void ripng_clean_network (void);
350 extern void ripng_interface_clean (void);
351 extern void ripng_interface_reset (void);
352 extern void ripng_passive_interface_clean (void);
353 extern void ripng_if_init (void);
354 extern void ripng_route_map_init (void);
355 extern void ripng_route_map_reset (void);
356 extern void ripng_terminate (void);
357 /* zclient_init() is done by ripng_zebra.c:zebra_init() */
358 extern void zebra_init (struct thread_master *);
359 extern void ripng_zclient_start (void);
360 extern void ripng_zclient_reset (void);
361 extern void ripng_offset_init (void);
363 extern int config_write_ripng_offset_list (struct vty *);
365 extern void ripng_peer_init (void);
366 extern void ripng_peer_update (struct sockaddr_in6 *, u_char);
367 extern void ripng_peer_bad_route (struct sockaddr_in6 *);
368 extern void ripng_peer_bad_packet (struct sockaddr_in6 *);
369 extern void ripng_peer_display (struct vty *);
370 extern struct ripng_peer *ripng_peer_lookup (struct in6_addr *);
371 extern struct ripng_peer *ripng_peer_lookup_next (struct in6_addr *);
373 extern int ripng_offset_list_apply_in (struct prefix_ipv6 *,
374 struct interface *, u_char *);
375 extern int ripng_offset_list_apply_out (struct prefix_ipv6 *,
376 struct interface *, u_char *);
377 extern void ripng_offset_clean (void);
379 extern struct ripng_info * ripng_info_new (void);
380 extern void ripng_info_free (struct ripng_info *rinfo);
381 extern void ripng_event (enum ripng_event, int);
382 extern int ripng_request (struct interface *ifp);
383 extern void ripng_redistribute_add (int, int, struct prefix_ipv6 *,
384 ifindex_t, struct in6_addr *, route_tag_t);
385 extern void ripng_redistribute_delete (int, int, struct prefix_ipv6 *,
387 extern void ripng_redistribute_withdraw (int type);
389 extern void ripng_distribute_update_interface (struct interface *);
390 extern void ripng_if_rmap_update_interface (struct interface *);
392 extern void ripng_zebra_ipv6_add (struct route_node *);
393 extern void ripng_zebra_ipv6_delete (struct route_node *);
395 extern void ripng_redistribute_clean (void);
396 extern int ripng_redistribute_check (int);
397 extern void ripng_redistribute_write (struct vty *, int);
399 extern int ripng_write_rte (int num, struct stream *s, struct prefix_ipv6 *p,
400 struct in6_addr *nexthop,
401 u_int16_t tag, u_char metric);
402 extern int ripng_send_packet (caddr_t buf, int bufsize,
403 struct sockaddr_in6 *to, struct interface *ifp);
405 extern void ripng_packet_dump (struct ripng_packet *packet, int size,
408 extern int ripng_interface_up (int command, struct zclient *, zebra_size_t,
410 extern int ripng_interface_down (int command, struct zclient *, zebra_size_t,
412 extern int ripng_interface_add (int command, struct zclient *, zebra_size_t,
414 extern int ripng_interface_delete (int command, struct zclient *, zebra_size_t,
416 extern int ripng_interface_address_add (int command, struct zclient *, zebra_size_t,
418 extern int ripng_interface_address_delete (int command, struct zclient *, zebra_size_t,
421 extern int ripng_network_write (struct vty *, int);
423 extern struct ripng_info *ripng_ecmp_add (struct ripng_info *);
424 extern struct ripng_info *ripng_ecmp_replace (struct ripng_info *);
425 extern struct ripng_info *ripng_ecmp_delete (struct ripng_info *);
427 #endif /* _ZEBRA_RIPNG_RIPNGD_H */