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
);
138 if (IS_OSPF6_DEBUG_ZEBRA (RECV
))
139 zlog_debug ("Zebra Interface state change: "
140 "%s index %d flags %llx metric %d mtu %d",
141 ifp
->name
, ifp
->ifindex
, (unsigned long long)ifp
->flags
,
142 ifp
->metric
, ifp
->mtu6
);
144 ospf6_interface_state_update (ifp
);
149 ospf6_zebra_if_address_update_add (int command
, struct zclient
*zclient
,
155 c
= zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD
, zclient
->ibuf
);
159 if (IS_OSPF6_DEBUG_ZEBRA (RECV
))
160 zlog_debug ("Zebra Interface address add: %s %5s %s/%d",
161 c
->ifp
->name
, prefix_family_str (c
->address
),
162 inet_ntop (c
->address
->family
, &c
->address
->u
.prefix
,
163 buf
, sizeof (buf
)), c
->address
->prefixlen
);
165 if (c
->address
->family
== AF_INET6
)
166 ospf6_interface_connected_route_update (c
->ifp
);
172 ospf6_zebra_if_address_update_delete (int command
, struct zclient
*zclient
,
178 c
= zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_DELETE
, zclient
->ibuf
);
182 if (IS_OSPF6_DEBUG_ZEBRA (RECV
))
183 zlog_debug ("Zebra Interface address delete: %s %5s %s/%d",
184 c
->ifp
->name
, prefix_family_str (c
->address
),
185 inet_ntop (c
->address
->family
, &c
->address
->u
.prefix
,
186 buf
, sizeof (buf
)), c
->address
->prefixlen
);
188 if (c
->address
->family
== AF_INET6
)
189 ospf6_interface_connected_route_update (c
->ifp
);
195 ospf6_zebra_read_ipv6 (int command
, struct zclient
*zclient
,
199 struct zapi_ipv6 api
;
200 unsigned long ifindex
;
201 struct prefix_ipv6 p
;
202 struct in6_addr
*nexthop
;
207 memset (&api
, 0, sizeof (api
));
209 /* Type, flags, message. */
210 api
.type
= stream_getc (s
);
211 api
.flags
= stream_getc (s
);
212 api
.message
= stream_getc (s
);
215 memset (&p
, 0, sizeof (struct prefix_ipv6
));
217 p
.prefixlen
= stream_getc (s
);
218 stream_get (&p
.prefix
, s
, PSIZE (p
.prefixlen
));
220 /* Nexthop, ifindex, distance, metric. */
221 if (CHECK_FLAG (api
.message
, ZAPI_MESSAGE_NEXTHOP
))
223 api
.nexthop_num
= stream_getc (s
);
224 nexthop
= (struct in6_addr
*)
225 malloc (api
.nexthop_num
* sizeof (struct in6_addr
));
226 stream_get (nexthop
, s
, api
.nexthop_num
* sizeof (struct in6_addr
));
228 if (CHECK_FLAG (api
.message
, ZAPI_MESSAGE_IFINDEX
))
230 api
.ifindex_num
= stream_getc (s
);
231 ifindex
= stream_getl (s
);
233 if (CHECK_FLAG (api
.message
, ZAPI_MESSAGE_DISTANCE
))
234 api
.distance
= stream_getc (s
);
237 if (CHECK_FLAG (api
.message
, ZAPI_MESSAGE_METRIC
))
238 api
.metric
= stream_getl (s
);
242 if (IS_OSPF6_DEBUG_ZEBRA (RECV
))
244 char prefixstr
[128], nexthopstr
[128];
245 prefix2str ((struct prefix
*)&p
, prefixstr
, sizeof (prefixstr
));
247 inet_ntop (AF_INET6
, nexthop
, nexthopstr
, sizeof (nexthopstr
));
249 snprintf (nexthopstr
, sizeof (nexthopstr
), "::");
251 zlog_debug ("Zebra Receive route %s: %s %s nexthop %s ifindex %ld",
252 (command
== ZEBRA_IPV6_ROUTE_ADD
? "add" : "delete"),
253 zebra_route_string(api
.type
), prefixstr
, nexthopstr
, ifindex
);
256 if (command
== ZEBRA_IPV6_ROUTE_ADD
)
257 ospf6_asbr_redistribute_add (api
.type
, ifindex
, (struct prefix
*) &p
,
258 api
.nexthop_num
, nexthop
);
260 ospf6_asbr_redistribute_remove (api
.type
, ifindex
, (struct prefix
*) &p
);
262 if (CHECK_FLAG (api
.message
, ZAPI_MESSAGE_NEXTHOP
))
275 "Zebra information\n")
280 vty_out (vty
, "Not connected to zebra%s", VNL
);
284 vty_out (vty
, "Zebra Infomation%s", VNL
);
285 vty_out (vty
, " enable: %d fail: %d%s",
286 zclient
->enable
, zclient
->fail
, VNL
);
287 vty_out (vty
, " redistribute default: %d%s", zclient
->redist_default
,
289 vty_out (vty
, " redistribute:");
290 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
292 if (zclient
->redist
[i
])
293 vty_out (vty
, " %s", zebra_route_string(i
));
295 vty_out (vty
, "%s", VNL
);
302 "Enable a routing process\n"
303 "Make connection to zebra daemon\n")
305 vty
->node
= ZEBRA_NODE
;
307 zclient_start (zclient
);
311 DEFUN (no_router_zebra
,
315 "Configure routing process\n"
316 "Disable connection to zebra daemon\n")
319 zclient_stop (zclient
);
323 /* Zebra configuration write function. */
325 config_write_ospf6_zebra (struct vty
*vty
)
327 if (! zclient
->enable
)
329 vty_out (vty
, "no router zebra%s", VNL
);
330 vty_out (vty
, "!%s", VNL
);
332 else if (! zclient
->redist
[ZEBRA_ROUTE_OSPF6
])
334 vty_out (vty
, "router zebra%s", VNL
);
335 vty_out (vty
, " no redistribute ospf6%s", VNL
);
336 vty_out (vty
, "!%s", VNL
);
341 /* Zebra node structure. */
342 static struct cmd_node zebra_node
=
345 "%s(config-zebra)# ",
351 ospf6_zebra_route_update (int type
, struct ospf6_route
*request
)
353 struct zapi_ipv6 api
;
356 struct in6_addr
**nexthops
;
357 unsigned int *ifindexes
;
359 struct prefix_ipv6
*dest
;
361 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
363 prefix2str (&request
->prefix
, buf
, sizeof (buf
));
364 zlog_debug ("Send %s route: %s",
365 (type
== REM
? "remove" : "add"), buf
);
368 if (zclient
->sock
< 0)
370 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
371 zlog_debug (" Not connected to Zebra");
375 if (request
->path
.origin
.adv_router
== ospf6
->router_id
&&
376 (request
->path
.type
== OSPF6_PATH_TYPE_EXTERNAL1
||
377 request
->path
.type
== OSPF6_PATH_TYPE_EXTERNAL2
))
379 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
380 zlog_debug (" Ignore self-originated external route");
384 /* If removing is the best path and if there's another path,
385 treat this request as add the secondary path */
386 if (type
== REM
&& ospf6_route_is_best (request
) &&
387 request
->next
&& ospf6_route_is_same (request
, request
->next
))
389 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
390 zlog_debug (" Best-path removal resulted Sencondary addition");
392 request
= request
->next
;
395 /* Only the best path will be sent to zebra. */
396 if (! ospf6_route_is_best (request
))
398 /* this is not preferred best route, ignore */
399 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
400 zlog_debug (" Ignore non-best route");
405 for (i
= 0; i
< OSPF6_MULTI_PATH_LIMIT
; i
++)
406 if (ospf6_nexthop_is_set (&request
->nexthop
[i
]))
411 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
412 zlog_debug (" No nexthop, ignore");
416 /* allocate memory for nexthop_list */
417 nexthops
= XCALLOC (MTYPE_OSPF6_OTHER
,
418 nhcount
* sizeof (struct in6_addr
*));
419 if (nexthops
== NULL
)
421 zlog_warn ("Can't send route to zebra: malloc failed");
425 /* allocate memory for ifindex_list */
426 ifindexes
= XCALLOC (MTYPE_OSPF6_OTHER
,
427 nhcount
* sizeof (unsigned int));
428 if (ifindexes
== NULL
)
430 zlog_warn ("Can't send route to zebra: malloc failed");
431 XFREE (MTYPE_OSPF6_OTHER
, nexthops
);
435 for (i
= 0; i
< nhcount
; i
++)
437 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
439 char ifname
[IFNAMSIZ
];
440 inet_ntop (AF_INET6
, &request
->nexthop
[i
].address
,
442 if (!if_indextoname(request
->nexthop
[i
].ifindex
, ifname
))
443 strlcpy(ifname
, "unknown", sizeof(ifname
));
444 zlog_debug (" nexthop: %s%%%.*s(%d)", buf
, IFNAMSIZ
, ifname
,
445 request
->nexthop
[i
].ifindex
);
447 nexthops
[i
] = &request
->nexthop
[i
].address
;
448 ifindexes
[i
] = request
->nexthop
[i
].ifindex
;
451 api
.type
= ZEBRA_ROUTE_OSPF6
;
454 api
.safi
= SAFI_UNICAST
;
455 SET_FLAG (api
.message
, ZAPI_MESSAGE_NEXTHOP
);
456 api
.nexthop_num
= nhcount
;
457 api
.nexthop
= nexthops
;
458 SET_FLAG (api
.message
, ZAPI_MESSAGE_IFINDEX
);
459 api
.ifindex_num
= nhcount
;
460 api
.ifindex
= ifindexes
;
461 SET_FLAG (api
.message
, ZAPI_MESSAGE_METRIC
);
462 api
.metric
= (request
->path
.metric_type
== 2 ?
463 request
->path
.cost_e2
: request
->path
.cost
);
465 dest
= (struct prefix_ipv6
*) &request
->prefix
;
467 ret
= zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE
, zclient
, dest
, &api
);
469 ret
= zapi_ipv6_route (ZEBRA_IPV6_ROUTE_ADD
, zclient
, dest
, &api
);
472 zlog_err ("zapi_ipv6_route() %s failed: %s",
473 (type
== REM
? "delete" : "add"), safe_strerror (errno
));
475 XFREE (MTYPE_OSPF6_OTHER
, nexthops
);
476 XFREE (MTYPE_OSPF6_OTHER
, ifindexes
);
482 ospf6_zebra_route_update_add (struct ospf6_route
*request
)
484 if (! zclient
->redist
[ZEBRA_ROUTE_OSPF6
])
486 ospf6
->route_table
->hook_add
= NULL
;
487 ospf6
->route_table
->hook_remove
= NULL
;
490 ospf6_zebra_route_update (ADD
, request
);
494 ospf6_zebra_route_update_remove (struct ospf6_route
*request
)
496 if (! zclient
->redist
[ZEBRA_ROUTE_OSPF6
])
498 ospf6
->route_table
->hook_add
= NULL
;
499 ospf6
->route_table
->hook_remove
= NULL
;
502 ospf6_zebra_route_update (REM
, request
);
505 DEFUN (redistribute_ospf6
,
506 redistribute_ospf6_cmd
,
507 "redistribute ospf6",
508 "Redistribute control\n"
511 struct ospf6_route
*route
;
513 if (zclient
->redist
[ZEBRA_ROUTE_OSPF6
])
516 zclient
->redist
[ZEBRA_ROUTE_OSPF6
] = 1;
521 /* send ospf6 route to zebra route table */
522 for (route
= ospf6_route_head (ospf6
->route_table
); route
;
523 route
= ospf6_route_next (route
))
524 ospf6_zebra_route_update_add (route
);
526 ospf6
->route_table
->hook_add
= ospf6_zebra_route_update_add
;
527 ospf6
->route_table
->hook_remove
= ospf6_zebra_route_update_remove
;
532 DEFUN (no_redistribute_ospf6
,
533 no_redistribute_ospf6_cmd
,
534 "no redistribute ospf6",
536 "Redistribute control\n"
539 struct ospf6_route
*route
;
541 if (! zclient
->redist
[ZEBRA_ROUTE_OSPF6
])
544 zclient
->redist
[ZEBRA_ROUTE_OSPF6
] = 0;
549 ospf6
->route_table
->hook_add
= NULL
;
550 ospf6
->route_table
->hook_remove
= NULL
;
552 /* withdraw ospf6 route from zebra route table */
553 for (route
= ospf6_route_head (ospf6
->route_table
); route
;
554 route
= ospf6_route_next (route
))
555 ospf6_zebra_route_update_remove (route
);
561 ospf6_zebra_init (void)
563 /* Allocate zebra structure. */
564 zclient
= zclient_new ();
565 zclient_init (zclient
, ZEBRA_ROUTE_OSPF6
);
566 zclient
->router_id_update
= ospf6_router_id_update_zebra
;
567 zclient
->interface_add
= ospf6_zebra_if_add
;
568 zclient
->interface_delete
= ospf6_zebra_if_del
;
569 zclient
->interface_up
= ospf6_zebra_if_state_update
;
570 zclient
->interface_down
= ospf6_zebra_if_state_update
;
571 zclient
->interface_address_add
= ospf6_zebra_if_address_update_add
;
572 zclient
->interface_address_delete
= ospf6_zebra_if_address_update_delete
;
573 zclient
->ipv4_route_add
= NULL
;
574 zclient
->ipv4_route_delete
= NULL
;
575 zclient
->ipv6_route_add
= ospf6_zebra_read_ipv6
;
576 zclient
->ipv6_route_delete
= ospf6_zebra_read_ipv6
;
578 /* redistribute connected route by default */
579 /* ospf6_zebra_redistribute (ZEBRA_ROUTE_CONNECT); */
581 /* Install zebra node. */
582 install_node (&zebra_node
, config_write_ospf6_zebra
);
584 /* Install command element for zebra node. */
585 install_element (VIEW_NODE
, &show_zebra_cmd
);
586 install_element (ENABLE_NODE
, &show_zebra_cmd
);
587 install_element (CONFIG_NODE
, &router_zebra_cmd
);
588 install_element (CONFIG_NODE
, &no_router_zebra_cmd
);
590 install_default (ZEBRA_NODE
);
591 install_element (ZEBRA_NODE
, &redistribute_ospf6_cmd
);
592 install_element (ZEBRA_NODE
, &no_redistribute_ospf6_cmd
);
599 DEFUN (debug_ospf6_zebra_sendrecv
,
600 debug_ospf6_zebra_sendrecv_cmd
,
601 "debug ospf6 zebra (send|recv)",
604 "Debug connection between zebra\n"
605 "Debug Sending zebra\n"
606 "Debug Receiving zebra\n"
609 unsigned char level
= 0;
613 if (! strncmp (argv
[0], "s", 1))
614 level
= OSPF6_DEBUG_ZEBRA_SEND
;
615 else if (! strncmp (argv
[0], "r", 1))
616 level
= OSPF6_DEBUG_ZEBRA_RECV
;
619 level
= OSPF6_DEBUG_ZEBRA_SEND
| OSPF6_DEBUG_ZEBRA_RECV
;
621 OSPF6_DEBUG_ZEBRA_ON (level
);
625 ALIAS (debug_ospf6_zebra_sendrecv
,
626 debug_ospf6_zebra_cmd
,
630 "Debug connection between zebra\n"
634 DEFUN (no_debug_ospf6_zebra_sendrecv
,
635 no_debug_ospf6_zebra_sendrecv_cmd
,
636 "no debug ospf6 zebra (send|recv)",
640 "Debug connection between zebra\n"
641 "Debug Sending zebra\n"
642 "Debug Receiving zebra\n"
645 unsigned char level
= 0;
649 if (! strncmp (argv
[0], "s", 1))
650 level
= OSPF6_DEBUG_ZEBRA_SEND
;
651 else if (! strncmp (argv
[0], "r", 1))
652 level
= OSPF6_DEBUG_ZEBRA_RECV
;
655 level
= OSPF6_DEBUG_ZEBRA_SEND
| OSPF6_DEBUG_ZEBRA_RECV
;
657 OSPF6_DEBUG_ZEBRA_OFF (level
);
661 ALIAS (no_debug_ospf6_zebra_sendrecv
,
662 no_debug_ospf6_zebra_cmd
,
663 "no debug ospf6 zebra",
667 "Debug connection between zebra\n"
671 config_write_ospf6_debug_zebra (struct vty
*vty
)
673 if (IS_OSPF6_DEBUG_ZEBRA (SEND
) && IS_OSPF6_DEBUG_ZEBRA (RECV
))
674 vty_out (vty
, "debug ospf6 zebra%s", VNL
);
677 if (IS_OSPF6_DEBUG_ZEBRA (SEND
))
678 vty_out (vty
, "debug ospf6 zebra send%s", VNL
);
679 if (IS_OSPF6_DEBUG_ZEBRA (RECV
))
680 vty_out (vty
, "debug ospf6 zebra recv%s", VNL
);
686 install_element_ospf6_debug_zebra (void)
688 install_element (ENABLE_NODE
, &debug_ospf6_zebra_cmd
);
689 install_element (ENABLE_NODE
, &no_debug_ospf6_zebra_cmd
);
690 install_element (ENABLE_NODE
, &debug_ospf6_zebra_sendrecv_cmd
);
691 install_element (ENABLE_NODE
, &no_debug_ospf6_zebra_sendrecv_cmd
);
692 install_element (CONFIG_NODE
, &debug_ospf6_zebra_cmd
);
693 install_element (CONFIG_NODE
, &no_debug_ospf6_zebra_cmd
);
694 install_element (CONFIG_NODE
, &debug_ospf6_zebra_sendrecv_cmd
);
695 install_element (CONFIG_NODE
, &no_debug_ospf6_zebra_sendrecv_cmd
);