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
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.
32 #include "ospf6_proto.h"
33 #include "ospf6_top.h"
34 #include "ospf6_interface.h"
35 #include "ospf6_route.h"
36 #include "ospf6_lsa.h"
37 #include "ospf6_lsdb.h"
38 #include "ospf6_asbr.h"
39 #include "ospf6_zebra.h"
42 unsigned char conf_debug_ospf6_zebra
= 0;
44 /* information about zebra. */
45 struct zclient
*zclient
= NULL
;
47 struct in_addr router_id_zebra
;
49 /* Router-id update message from zebra. */
51 ospf6_router_id_update_zebra (int command
, struct zclient
*zclient
,
54 struct prefix router_id
;
55 struct ospf6
*o
= ospf6
;
57 zebra_router_id_update_read(zclient
->ibuf
,&router_id
);
58 router_id_zebra
= router_id
.u
.prefix4
;
63 if (o
->router_id
== 0)
64 o
->router_id
= (u_int32_t
) router_id_zebra
.s_addr
;
69 /* redistribute function */
71 ospf6_zebra_redistribute (int type
)
73 if (zclient
->redist
[type
])
75 zclient
->redist
[type
] = 1;
76 if (zclient
->sock
> 0)
77 zebra_redistribute_send (ZEBRA_REDISTRIBUTE_ADD
, zclient
, type
);
81 ospf6_zebra_no_redistribute (int type
)
83 if (! zclient
->redist
[type
])
85 zclient
->redist
[type
] = 0;
86 if (zclient
->sock
> 0)
87 zebra_redistribute_send (ZEBRA_REDISTRIBUTE_DELETE
, zclient
, type
);
90 /* Inteface addition message from zebra. */
92 ospf6_zebra_if_add (int command
, struct zclient
*zclient
, zebra_size_t length
)
94 struct interface
*ifp
;
96 ifp
= zebra_interface_add_read (zclient
->ibuf
);
97 if (IS_OSPF6_DEBUG_ZEBRA (RECV
))
98 zlog_debug ("Zebra Interface add: %s index %d mtu %d",
99 ifp
->name
, ifp
->ifindex
, ifp
->mtu6
);
100 ospf6_interface_if_add (ifp
);
105 ospf6_zebra_if_del (int command
, struct zclient
*zclient
, zebra_size_t length
)
107 struct interface
*ifp
;
109 if (!(ifp
= zebra_interface_state_read(zclient
->ibuf
)))
113 zlog_warn ("Zebra: got delete of %s, but interface is still up", ifp
->name
);
115 if (IS_OSPF6_DEBUG_ZEBRA (RECV
))
116 zlog_debug ("Zebra Interface delete: %s index %d mtu %d",
117 ifp
->name
, ifp
->ifindex
, ifp
->mtu6
);
120 /* Why is this commented out? */
121 ospf6_interface_if_del (ifp
);
124 ifp
->ifindex
= IFINDEX_INTERNAL
;
129 ospf6_zebra_if_state_update (int command
, struct zclient
*zclient
,
132 struct interface
*ifp
;
134 ifp
= zebra_interface_state_read (zclient
->ibuf
);
135 if (IS_OSPF6_DEBUG_ZEBRA (RECV
))
136 zlog_debug ("Zebra Interface state change: "
137 "%s index %d flags %llx metric %d mtu %d",
138 ifp
->name
, ifp
->ifindex
, (unsigned long long)ifp
->flags
,
139 ifp
->metric
, ifp
->mtu6
);
141 ospf6_interface_state_update (ifp
);
146 ospf6_zebra_if_address_update_add (int command
, struct zclient
*zclient
,
152 c
= zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD
, zclient
->ibuf
);
156 if (IS_OSPF6_DEBUG_ZEBRA (RECV
))
157 zlog_debug ("Zebra Interface address add: %s %5s %s/%d",
158 c
->ifp
->name
, prefix_family_str (c
->address
),
159 inet_ntop (c
->address
->family
, &c
->address
->u
.prefix
,
160 buf
, sizeof (buf
)), c
->address
->prefixlen
);
162 if (c
->address
->family
== AF_INET6
)
163 ospf6_interface_connected_route_update (c
->ifp
);
169 ospf6_zebra_if_address_update_delete (int command
, struct zclient
*zclient
,
175 c
= zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_DELETE
, zclient
->ibuf
);
179 if (IS_OSPF6_DEBUG_ZEBRA (RECV
))
180 zlog_debug ("Zebra Interface address delete: %s %5s %s/%d",
181 c
->ifp
->name
, prefix_family_str (c
->address
),
182 inet_ntop (c
->address
->family
, &c
->address
->u
.prefix
,
183 buf
, sizeof (buf
)), c
->address
->prefixlen
);
185 if (c
->address
->family
== AF_INET6
)
186 ospf6_interface_connected_route_update (c
->ifp
);
192 ospf6_zebra_read_ipv6 (int command
, struct zclient
*zclient
,
196 struct zapi_ipv6 api
;
197 unsigned long ifindex
;
198 struct prefix_ipv6 p
;
199 struct in6_addr
*nexthop
;
204 memset (&api
, 0, sizeof (api
));
206 /* Type, flags, message. */
207 api
.type
= stream_getc (s
);
208 api
.flags
= stream_getc (s
);
209 api
.message
= stream_getc (s
);
212 memset (&p
, 0, sizeof (struct prefix_ipv6
));
214 p
.prefixlen
= stream_getc (s
);
215 stream_get (&p
.prefix
, s
, PSIZE (p
.prefixlen
));
217 /* Nexthop, ifindex, distance, metric. */
218 if (CHECK_FLAG (api
.message
, ZAPI_MESSAGE_NEXTHOP
))
220 api
.nexthop_num
= stream_getc (s
);
221 nexthop
= (struct in6_addr
*)
222 malloc (api
.nexthop_num
* sizeof (struct in6_addr
));
223 stream_get (nexthop
, s
, api
.nexthop_num
* sizeof (struct in6_addr
));
225 if (CHECK_FLAG (api
.message
, ZAPI_MESSAGE_IFINDEX
))
227 api
.ifindex_num
= stream_getc (s
);
228 ifindex
= stream_getl (s
);
230 if (CHECK_FLAG (api
.message
, ZAPI_MESSAGE_DISTANCE
))
231 api
.distance
= stream_getc (s
);
234 if (CHECK_FLAG (api
.message
, ZAPI_MESSAGE_METRIC
))
235 api
.metric
= stream_getl (s
);
239 if (IS_OSPF6_DEBUG_ZEBRA (RECV
))
241 char prefixstr
[128], nexthopstr
[128];
242 prefix2str ((struct prefix
*)&p
, prefixstr
, sizeof (prefixstr
));
244 inet_ntop (AF_INET6
, nexthop
, nexthopstr
, sizeof (nexthopstr
));
246 snprintf (nexthopstr
, sizeof (nexthopstr
), "::");
248 zlog_debug ("Zebra Receive route %s: %s %s nexthop %s ifindex %ld",
249 (command
== ZEBRA_IPV6_ROUTE_ADD
? "add" : "delete"),
250 zebra_route_string(api
.type
), prefixstr
, nexthopstr
, ifindex
);
253 if (command
== ZEBRA_IPV6_ROUTE_ADD
)
254 ospf6_asbr_redistribute_add (api
.type
, ifindex
, (struct prefix
*) &p
,
255 api
.nexthop_num
, nexthop
);
257 ospf6_asbr_redistribute_remove (api
.type
, ifindex
, (struct prefix
*) &p
);
259 if (CHECK_FLAG (api
.message
, ZAPI_MESSAGE_NEXTHOP
))
272 "Zebra information\n")
277 vty_out (vty
, "Not connected to zebra%s", VNL
);
281 vty_out (vty
, "Zebra Infomation%s", VNL
);
282 vty_out (vty
, " enable: %d fail: %d%s",
283 zclient
->enable
, zclient
->fail
, VNL
);
284 vty_out (vty
, " redistribute default: %d%s", zclient
->redist_default
,
286 vty_out (vty
, " redistribute:");
287 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
289 if (zclient
->redist
[i
])
290 vty_out (vty
, " %s", zebra_route_string(i
));
292 vty_out (vty
, "%s", VNL
);
299 "Enable a routing process\n"
300 "Make connection to zebra daemon\n")
302 vty
->node
= ZEBRA_NODE
;
304 zclient_start (zclient
);
308 DEFUN (no_router_zebra
,
312 "Configure routing process\n"
313 "Disable connection to zebra daemon\n")
316 zclient_stop (zclient
);
320 /* Zebra configuration write function. */
322 config_write_ospf6_zebra (struct vty
*vty
)
324 if (! zclient
->enable
)
326 vty_out (vty
, "no router zebra%s", VNL
);
327 vty_out (vty
, "!%s", VNL
);
329 else if (! zclient
->redist
[ZEBRA_ROUTE_OSPF6
])
331 vty_out (vty
, "router zebra%s", VNL
);
332 vty_out (vty
, " no redistribute ospf6%s", VNL
);
333 vty_out (vty
, "!%s", VNL
);
338 /* Zebra node structure. */
339 static struct cmd_node zebra_node
=
342 "%s(config-zebra)# ",
348 ospf6_zebra_route_update (int type
, struct ospf6_route
*request
)
350 struct zapi_ipv6 api
;
353 struct in6_addr
**nexthops
;
354 unsigned int *ifindexes
;
356 struct prefix_ipv6
*dest
;
358 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
360 prefix2str (&request
->prefix
, buf
, sizeof (buf
));
361 zlog_debug ("Send %s route: %s",
362 (type
== REM
? "remove" : "add"), buf
);
365 if (zclient
->sock
< 0)
367 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
368 zlog_debug (" Not connected to Zebra");
372 if (request
->path
.origin
.adv_router
== ospf6
->router_id
&&
373 (request
->path
.type
== OSPF6_PATH_TYPE_EXTERNAL1
||
374 request
->path
.type
== OSPF6_PATH_TYPE_EXTERNAL2
))
376 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
377 zlog_debug (" Ignore self-originated external route");
381 /* If removing is the best path and if there's another path,
382 treat this request as add the secondary path */
383 if (type
== REM
&& ospf6_route_is_best (request
) &&
384 request
->next
&& ospf6_route_is_same (request
, request
->next
))
386 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
387 zlog_debug (" Best-path removal resulted Sencondary addition");
389 request
= request
->next
;
392 /* Only the best path will be sent to zebra. */
393 if (! ospf6_route_is_best (request
))
395 /* this is not preferred best route, ignore */
396 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
397 zlog_debug (" Ignore non-best route");
402 for (i
= 0; i
< OSPF6_MULTI_PATH_LIMIT
; i
++)
403 if (ospf6_nexthop_is_set (&request
->nexthop
[i
]))
408 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
409 zlog_debug (" No nexthop, ignore");
413 /* allocate memory for nexthop_list */
414 nexthops
= XCALLOC (MTYPE_OSPF6_OTHER
,
415 nhcount
* sizeof (struct in6_addr
*));
416 if (nexthops
== NULL
)
418 zlog_warn ("Can't send route to zebra: malloc failed");
422 /* allocate memory for ifindex_list */
423 ifindexes
= XCALLOC (MTYPE_OSPF6_OTHER
,
424 nhcount
* sizeof (unsigned int));
425 if (ifindexes
== NULL
)
427 zlog_warn ("Can't send route to zebra: malloc failed");
428 XFREE (MTYPE_OSPF6_OTHER
, nexthops
);
432 for (i
= 0; i
< nhcount
; i
++)
434 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
436 char ifname
[IFNAMSIZ
];
437 inet_ntop (AF_INET6
, &request
->nexthop
[i
].address
,
439 if (!if_indextoname(request
->nexthop
[i
].ifindex
, ifname
))
440 strlcpy(ifname
, "unknown", sizeof(ifname
));
441 zlog_debug (" nexthop: %s%%%.*s(%d)", buf
, IFNAMSIZ
, ifname
,
442 request
->nexthop
[i
].ifindex
);
444 nexthops
[i
] = &request
->nexthop
[i
].address
;
445 ifindexes
[i
] = request
->nexthop
[i
].ifindex
;
448 api
.type
= ZEBRA_ROUTE_OSPF6
;
451 SET_FLAG (api
.message
, ZAPI_MESSAGE_NEXTHOP
);
452 api
.nexthop_num
= nhcount
;
453 api
.nexthop
= nexthops
;
454 SET_FLAG (api
.message
, ZAPI_MESSAGE_IFINDEX
);
455 api
.ifindex_num
= nhcount
;
456 api
.ifindex
= ifindexes
;
457 SET_FLAG (api
.message
, ZAPI_MESSAGE_METRIC
);
458 api
.metric
= (request
->path
.metric_type
== 2 ?
459 request
->path
.cost_e2
: request
->path
.cost
);
461 dest
= (struct prefix_ipv6
*) &request
->prefix
;
463 ret
= zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE
, zclient
, dest
, &api
);
465 ret
= zapi_ipv6_route (ZEBRA_IPV6_ROUTE_ADD
, zclient
, dest
, &api
);
468 zlog_err ("zapi_ipv6_route() %s failed: %s",
469 (type
== REM
? "delete" : "add"), safe_strerror (errno
));
471 XFREE (MTYPE_OSPF6_OTHER
, nexthops
);
472 XFREE (MTYPE_OSPF6_OTHER
, ifindexes
);
478 ospf6_zebra_route_update_add (struct ospf6_route
*request
)
480 if (! zclient
->redist
[ZEBRA_ROUTE_OSPF6
])
482 ospf6
->route_table
->hook_add
= NULL
;
483 ospf6
->route_table
->hook_remove
= NULL
;
486 ospf6_zebra_route_update (ADD
, request
);
490 ospf6_zebra_route_update_remove (struct ospf6_route
*request
)
492 if (! zclient
->redist
[ZEBRA_ROUTE_OSPF6
])
494 ospf6
->route_table
->hook_add
= NULL
;
495 ospf6
->route_table
->hook_remove
= NULL
;
498 ospf6_zebra_route_update (REM
, request
);
501 DEFUN (redistribute_ospf6
,
502 redistribute_ospf6_cmd
,
503 "redistribute ospf6",
504 "Redistribute control\n"
507 struct ospf6_route
*route
;
509 if (zclient
->redist
[ZEBRA_ROUTE_OSPF6
])
512 zclient
->redist
[ZEBRA_ROUTE_OSPF6
] = 1;
517 /* send ospf6 route to zebra route table */
518 for (route
= ospf6_route_head (ospf6
->route_table
); route
;
519 route
= ospf6_route_next (route
))
520 ospf6_zebra_route_update_add (route
);
522 ospf6
->route_table
->hook_add
= ospf6_zebra_route_update_add
;
523 ospf6
->route_table
->hook_remove
= ospf6_zebra_route_update_remove
;
528 DEFUN (no_redistribute_ospf6
,
529 no_redistribute_ospf6_cmd
,
530 "no redistribute ospf6",
532 "Redistribute control\n"
535 struct ospf6_route
*route
;
537 if (! zclient
->redist
[ZEBRA_ROUTE_OSPF6
])
540 zclient
->redist
[ZEBRA_ROUTE_OSPF6
] = 0;
545 ospf6
->route_table
->hook_add
= NULL
;
546 ospf6
->route_table
->hook_remove
= NULL
;
548 /* withdraw ospf6 route from zebra route table */
549 for (route
= ospf6_route_head (ospf6
->route_table
); route
;
550 route
= ospf6_route_next (route
))
551 ospf6_zebra_route_update_remove (route
);
557 ospf6_zebra_init (void)
559 /* Allocate zebra structure. */
560 zclient
= zclient_new ();
561 zclient_init (zclient
, ZEBRA_ROUTE_OSPF6
);
562 zclient
->router_id_update
= ospf6_router_id_update_zebra
;
563 zclient
->interface_add
= ospf6_zebra_if_add
;
564 zclient
->interface_delete
= ospf6_zebra_if_del
;
565 zclient
->interface_up
= ospf6_zebra_if_state_update
;
566 zclient
->interface_down
= ospf6_zebra_if_state_update
;
567 zclient
->interface_address_add
= ospf6_zebra_if_address_update_add
;
568 zclient
->interface_address_delete
= ospf6_zebra_if_address_update_delete
;
569 zclient
->ipv4_route_add
= NULL
;
570 zclient
->ipv4_route_delete
= NULL
;
571 zclient
->ipv6_route_add
= ospf6_zebra_read_ipv6
;
572 zclient
->ipv6_route_delete
= ospf6_zebra_read_ipv6
;
574 /* redistribute connected route by default */
575 /* ospf6_zebra_redistribute (ZEBRA_ROUTE_CONNECT); */
577 /* Install zebra node. */
578 install_node (&zebra_node
, config_write_ospf6_zebra
);
580 /* Install command element for zebra node. */
581 install_element (VIEW_NODE
, &show_zebra_cmd
);
582 install_element (ENABLE_NODE
, &show_zebra_cmd
);
583 install_element (CONFIG_NODE
, &router_zebra_cmd
);
584 install_element (CONFIG_NODE
, &no_router_zebra_cmd
);
586 install_default (ZEBRA_NODE
);
587 install_element (ZEBRA_NODE
, &redistribute_ospf6_cmd
);
588 install_element (ZEBRA_NODE
, &no_redistribute_ospf6_cmd
);
595 DEFUN (debug_ospf6_zebra_sendrecv
,
596 debug_ospf6_zebra_sendrecv_cmd
,
597 "debug ospf6 zebra (send|recv)",
600 "Debug connection between zebra\n"
601 "Debug Sending zebra\n"
602 "Debug Receiving zebra\n"
605 unsigned char level
= 0;
609 if (! strncmp (argv
[0], "s", 1))
610 level
= OSPF6_DEBUG_ZEBRA_SEND
;
611 else if (! strncmp (argv
[0], "r", 1))
612 level
= OSPF6_DEBUG_ZEBRA_RECV
;
615 level
= OSPF6_DEBUG_ZEBRA_SEND
| OSPF6_DEBUG_ZEBRA_RECV
;
617 OSPF6_DEBUG_ZEBRA_ON (level
);
621 ALIAS (debug_ospf6_zebra_sendrecv
,
622 debug_ospf6_zebra_cmd
,
626 "Debug connection between zebra\n"
630 DEFUN (no_debug_ospf6_zebra_sendrecv
,
631 no_debug_ospf6_zebra_sendrecv_cmd
,
632 "no debug ospf6 zebra (send|recv)",
636 "Debug connection between zebra\n"
637 "Debug Sending zebra\n"
638 "Debug Receiving zebra\n"
641 unsigned char level
= 0;
645 if (! strncmp (argv
[0], "s", 1))
646 level
= OSPF6_DEBUG_ZEBRA_SEND
;
647 else if (! strncmp (argv
[0], "r", 1))
648 level
= OSPF6_DEBUG_ZEBRA_RECV
;
651 level
= OSPF6_DEBUG_ZEBRA_SEND
| OSPF6_DEBUG_ZEBRA_RECV
;
653 OSPF6_DEBUG_ZEBRA_OFF (level
);
657 ALIAS (no_debug_ospf6_zebra_sendrecv
,
658 no_debug_ospf6_zebra_cmd
,
659 "no debug ospf6 zebra",
663 "Debug connection between zebra\n"
667 config_write_ospf6_debug_zebra (struct vty
*vty
)
669 if (IS_OSPF6_DEBUG_ZEBRA (SEND
) && IS_OSPF6_DEBUG_ZEBRA (RECV
))
670 vty_out (vty
, "debug ospf6 zebra%s", VNL
);
673 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
674 vty_out (vty
, "debug ospf6 zebra send%s", VNL
);
675 if (IS_OSPF6_DEBUG_ZEBRA (RECV
))
676 vty_out (vty
, "debug ospf6 zebra recv%s", VNL
);
682 install_element_ospf6_debug_zebra (void)
684 install_element (ENABLE_NODE
, &debug_ospf6_zebra_cmd
);
685 install_element (ENABLE_NODE
, &no_debug_ospf6_zebra_cmd
);
686 install_element (ENABLE_NODE
, &debug_ospf6_zebra_sendrecv_cmd
);
687 install_element (ENABLE_NODE
, &no_debug_ospf6_zebra_sendrecv_cmd
);
688 install_element (CONFIG_NODE
, &debug_ospf6_zebra_cmd
);
689 install_element (CONFIG_NODE
, &no_debug_ospf6_zebra_cmd
);
690 install_element (CONFIG_NODE
, &debug_ospf6_zebra_sendrecv_cmd
);
691 install_element (CONFIG_NODE
, &no_debug_ospf6_zebra_sendrecv_cmd
);