2 * IS-IS Rout(e)ing protocol - isis_circuit.h
4 * Copyright (C) 2001,2002 Sampo Saaristo
5 * Tampere University of Technology
6 * Institute of Communications Engineering
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public Licenseas published by the Free
10 * Software Foundation; either version 2 of the License, or (at your option)
13 * This program is distributed in the hope that it will be useful,but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 #include <net/ethernet.h>
26 #include <netinet/if_ether.h>
29 #ifndef ETHER_ADDR_LEN
30 #define ETHER_ADDR_LEN ETHERADDRL
46 #include "isisd/dict.h"
47 #include "isisd/include-netbsd/iso.h"
48 #include "isisd/isis_constants.h"
49 #include "isisd/isis_common.h"
50 #include "isisd/isis_flags.h"
51 #include "isisd/isis_circuit.h"
52 #include "isisd/isis_tlv.h"
53 #include "isisd/isis_lsp.h"
54 #include "isisd/isis_pdu.h"
55 #include "isisd/isis_network.h"
56 #include "isisd/isis_misc.h"
57 #include "isisd/isis_constants.h"
58 #include "isisd/isis_adjacency.h"
59 #include "isisd/isis_dr.h"
60 #include "isisd/isisd.h"
61 #include "isisd/isis_csm.h"
62 #include "isisd/isis_events.h"
63 #include "isisd/isis_te.h"
65 DEFINE_QOBJ_TYPE(isis_circuit
)
70 int isis_interface_config_write(struct vty
*);
71 int isis_if_new_hook(struct interface
*);
72 int isis_if_delete_hook(struct interface
*);
77 struct isis_circuit
*circuit
;
80 circuit
= XCALLOC (MTYPE_ISIS_CIRCUIT
, sizeof (struct isis_circuit
));
83 zlog_err ("Can't malloc isis circuit");
90 circuit
->is_type
= IS_LEVEL_1_AND_2
;
92 circuit
->pad_hellos
= 1;
93 for (i
= 0; i
< 2; i
++)
95 circuit
->hello_interval
[i
] = DEFAULT_HELLO_INTERVAL
;
96 circuit
->hello_multiplier
[i
] = DEFAULT_HELLO_MULTIPLIER
;
97 circuit
->csnp_interval
[i
] = DEFAULT_CSNP_INTERVAL
;
98 circuit
->psnp_interval
[i
] = DEFAULT_PSNP_INTERVAL
;
99 circuit
->priority
[i
] = DEFAULT_PRIORITY
;
100 circuit
->metric
[i
] = DEFAULT_CIRCUIT_METRIC
;
101 circuit
->te_metric
[i
] = DEFAULT_CIRCUIT_METRIC
;
104 circuit
->mtc
= mpls_te_circuit_new();
106 QOBJ_REG (circuit
, isis_circuit
);
112 isis_circuit_del (struct isis_circuit
*circuit
)
117 QOBJ_UNREG (circuit
);
119 isis_circuit_if_unbind (circuit
, circuit
->interface
);
121 /* and lastly the circuit itself */
122 XFREE (MTYPE_ISIS_CIRCUIT
, circuit
);
128 isis_circuit_configure (struct isis_circuit
*circuit
, struct isis_area
*area
)
131 circuit
->area
= area
;
134 * Whenever the is-type of an area is changed, the is-type of each circuit
135 * in that area is updated to a non-empty subset of the area is-type.
136 * Inversely, when configuring a new circuit, this property should be
139 if (area
->is_type
!= IS_LEVEL_1_AND_2
)
140 circuit
->is_type
= area
->is_type
;
143 * Add the circuit into area
145 listnode_add (area
->circuit_list
, circuit
);
147 circuit
->idx
= flags_get_index (&area
->flags
);
153 isis_circuit_deconfigure (struct isis_circuit
*circuit
, struct isis_area
*area
)
155 /* Free the index of SRM and SSN flags */
156 flags_free_index (&area
->flags
, circuit
->idx
);
158 /* Remove circuit from area */
159 assert (circuit
->area
== area
);
160 listnode_delete (area
->circuit_list
, circuit
);
161 circuit
->area
= NULL
;
166 struct isis_circuit
*
167 circuit_lookup_by_ifp (struct interface
*ifp
, struct list
*list
)
169 struct isis_circuit
*circuit
= NULL
;
170 struct listnode
*node
;
175 for (ALL_LIST_ELEMENTS_RO (list
, node
, circuit
))
176 if (circuit
->interface
== ifp
)
178 assert (ifp
->info
== circuit
);
185 struct isis_circuit
*
186 circuit_scan_by_ifp (struct interface
*ifp
)
188 struct isis_area
*area
;
189 struct listnode
*node
;
190 struct isis_circuit
*circuit
;
193 return (struct isis_circuit
*)ifp
->info
;
197 for (ALL_LIST_ELEMENTS_RO (isis
->area_list
, node
, area
))
199 circuit
= circuit_lookup_by_ifp (ifp
, area
->circuit_list
);
204 return circuit_lookup_by_ifp (ifp
, isis
->init_circ_list
);
208 isis_circuit_add_addr (struct isis_circuit
*circuit
,
209 struct connected
*connected
)
211 struct listnode
*node
;
212 struct prefix_ipv4
*ipv4
;
213 #if defined(EXTREME_DEBUG)
214 char buf
[PREFIX2STR_BUFFER
];
216 struct prefix_ipv6
*ipv6
;
218 if (connected
->address
->family
== AF_INET
)
220 u_int32_t addr
= connected
->address
->u
.prefix4
.s_addr
;
222 if (IPV4_NET0(addr
) ||
225 IPV4_LINKLOCAL(addr
))
228 for (ALL_LIST_ELEMENTS_RO (circuit
->ip_addrs
, node
, ipv4
))
229 if (prefix_same ((struct prefix
*) ipv4
, connected
->address
))
232 ipv4
= prefix_ipv4_new ();
233 ipv4
->prefixlen
= connected
->address
->prefixlen
;
234 ipv4
->prefix
= connected
->address
->u
.prefix4
;
235 listnode_add (circuit
->ip_addrs
, ipv4
);
237 /* Update MPLS TE Local IP address parameter */
238 set_circuitparams_local_ipaddr (circuit
->mtc
, ipv4
->prefix
);
241 lsp_regenerate_schedule (circuit
->area
, circuit
->is_type
, 0);
244 prefix2str (connected
->address
, buf
, sizeof (buf
));
245 zlog_debug ("Added IP address %s to circuit %d", buf
,
246 circuit
->circuit_id
);
247 #endif /* EXTREME_DEBUG */
249 if (connected
->address
->family
== AF_INET6
)
251 if (IN6_IS_ADDR_LOOPBACK(&connected
->address
->u
.prefix6
))
254 for (ALL_LIST_ELEMENTS_RO (circuit
->ipv6_link
, node
, ipv6
))
255 if (prefix_same ((struct prefix
*) ipv6
, connected
->address
))
257 for (ALL_LIST_ELEMENTS_RO (circuit
->ipv6_non_link
, node
, ipv6
))
258 if (prefix_same ((struct prefix
*) ipv6
, connected
->address
))
261 ipv6
= prefix_ipv6_new ();
262 ipv6
->prefixlen
= connected
->address
->prefixlen
;
263 ipv6
->prefix
= connected
->address
->u
.prefix6
;
265 if (IN6_IS_ADDR_LINKLOCAL (&ipv6
->prefix
))
266 listnode_add (circuit
->ipv6_link
, ipv6
);
268 listnode_add (circuit
->ipv6_non_link
, ipv6
);
270 lsp_regenerate_schedule (circuit
->area
, circuit
->is_type
, 0);
273 prefix2str (connected
->address
, buf
, sizeof (buf
));
274 zlog_debug ("Added IPv6 address %s to circuit %d", buf
,
275 circuit
->circuit_id
);
276 #endif /* EXTREME_DEBUG */
282 isis_circuit_del_addr (struct isis_circuit
*circuit
,
283 struct connected
*connected
)
285 struct prefix_ipv4
*ipv4
, *ip
= NULL
;
286 struct listnode
*node
;
287 char buf
[PREFIX2STR_BUFFER
];
289 struct prefix_ipv6
*ipv6
, *ip6
= NULL
;
291 #endif /* HAVE_IPV6 */
293 if (connected
->address
->family
== AF_INET
)
295 ipv4
= prefix_ipv4_new ();
296 ipv4
->prefixlen
= connected
->address
->prefixlen
;
297 ipv4
->prefix
= connected
->address
->u
.prefix4
;
299 for (ALL_LIST_ELEMENTS_RO (circuit
->ip_addrs
, node
, ip
))
300 if (prefix_same ((struct prefix
*) ip
, (struct prefix
*) ipv4
))
305 listnode_delete (circuit
->ip_addrs
, ip
);
307 lsp_regenerate_schedule (circuit
->area
, circuit
->is_type
, 0);
311 prefix2str (connected
->address
, buf
, sizeof (buf
));
312 zlog_warn ("Nonexitant ip address %s removal attempt from \
313 circuit %d", buf
, circuit
->circuit_id
);
314 zlog_warn ("Current ip addresses on %s:", circuit
->interface
->name
);
315 for (ALL_LIST_ELEMENTS_RO(circuit
->ip_addrs
, node
, ip
))
317 prefix2str((struct prefix
*)ip
, (char *)buf
, BUFSIZ
);
318 zlog_warn(" %s", buf
);
320 zlog_warn("End of addresses");
323 prefix_ipv4_free (ipv4
);
326 if (connected
->address
->family
== AF_INET6
)
328 ipv6
= prefix_ipv6_new ();
329 ipv6
->prefixlen
= connected
->address
->prefixlen
;
330 ipv6
->prefix
= connected
->address
->u
.prefix6
;
332 if (IN6_IS_ADDR_LINKLOCAL (&ipv6
->prefix
))
334 for (ALL_LIST_ELEMENTS_RO (circuit
->ipv6_link
, node
, ip6
))
336 if (prefix_same ((struct prefix
*) ip6
, (struct prefix
*) ipv6
))
341 listnode_delete (circuit
->ipv6_link
, ip6
);
347 for (ALL_LIST_ELEMENTS_RO (circuit
->ipv6_non_link
, node
, ip6
))
349 if (prefix_same ((struct prefix
*) ip6
, (struct prefix
*) ipv6
))
354 listnode_delete (circuit
->ipv6_non_link
, ip6
);
361 prefix2str (connected
->address
, buf
, sizeof (buf
));
362 zlog_warn ("Nonexitant ip address %s removal attempt from \
363 circuit %d", buf
, circuit
->circuit_id
);
364 zlog_warn ("Current ip addresses on %s:", circuit
->interface
->name
);
365 for (ALL_LIST_ELEMENTS_RO(circuit
->ipv6_link
, node
, ip6
))
367 prefix2str((struct prefix
*)ip6
, (char *)buf
, BUFSIZ
);
368 zlog_warn(" %s", buf
);
371 for (ALL_LIST_ELEMENTS_RO(circuit
->ipv6_non_link
, node
, ip6
))
373 prefix2str((struct prefix
*)ip6
, (char *)buf
, BUFSIZ
);
374 zlog_warn(" %s", buf
);
376 zlog_warn("End of addresses");
378 else if (circuit
->area
)
379 lsp_regenerate_schedule (circuit
->area
, circuit
->is_type
, 0);
381 prefix_ipv6_free (ipv6
);
383 #endif /* HAVE_IPV6 */
388 isis_circuit_id_gen (struct interface
*ifp
)
393 int start
= -1, end
= -1;
396 * Get a stable circuit id from ifname. This makes
397 * the ifindex from flapping when netdevs are created
398 * and deleted on the fly. Note that this circuit id
399 * is used in pseudo lsps so it is better to be stable.
400 * The following code works on any reasonanle ifname
401 * like: eth1 or trk-1.1 etc.
403 for (i
= 0; i
< strlen (ifp
->name
); i
++)
405 if (isdigit((unsigned char)ifp
->name
[i
]))
421 if ((start
>= 0) && (end
>= start
) && (end
- start
) < 16)
423 memset (ifname
, 0, 16);
424 strncpy (ifname
, &ifp
->name
[start
], end
- start
);
425 id
= (u_char
)atoi(ifname
);
428 /* Try to be unique. */
430 id
= (u_char
)((ifp
->ifindex
& 0xff) | 0x80);
436 isis_circuit_if_add (struct isis_circuit
*circuit
, struct interface
*ifp
)
438 struct listnode
*node
, *nnode
;
439 struct connected
*conn
;
441 circuit
->circuit_id
= isis_circuit_id_gen (ifp
);
443 isis_circuit_if_bind (circuit
, ifp
);
444 /* isis_circuit_update_addrs (circuit, ifp); */
446 if (if_is_broadcast (ifp
))
448 if (circuit
->circ_type_config
== CIRCUIT_T_P2P
)
449 circuit
->circ_type
= CIRCUIT_T_P2P
;
451 circuit
->circ_type
= CIRCUIT_T_BROADCAST
;
453 else if (if_is_pointopoint (ifp
))
455 circuit
->circ_type
= CIRCUIT_T_P2P
;
457 else if (if_is_loopback (ifp
))
459 circuit
->circ_type
= CIRCUIT_T_LOOPBACK
;
460 circuit
->is_passive
= 1;
464 /* It's normal in case of loopback etc. */
465 if (isis
->debugs
& DEBUG_EVENTS
)
466 zlog_debug ("isis_circuit_if_add: unsupported media");
467 circuit
->circ_type
= CIRCUIT_T_UNKNOWN
;
470 circuit
->ip_addrs
= list_new ();
472 circuit
->ipv6_link
= list_new ();
473 circuit
->ipv6_non_link
= list_new ();
474 #endif /* HAVE_IPV6 */
476 for (ALL_LIST_ELEMENTS (ifp
->connected
, node
, nnode
, conn
))
477 isis_circuit_add_addr (circuit
, conn
);
483 isis_circuit_if_del (struct isis_circuit
*circuit
, struct interface
*ifp
)
485 struct listnode
*node
, *nnode
;
486 struct connected
*conn
;
488 assert (circuit
->interface
== ifp
);
490 /* destroy addresses */
491 for (ALL_LIST_ELEMENTS (ifp
->connected
, node
, nnode
, conn
))
492 isis_circuit_del_addr (circuit
, conn
);
494 if (circuit
->ip_addrs
)
496 assert (listcount(circuit
->ip_addrs
) == 0);
497 list_delete (circuit
->ip_addrs
);
498 circuit
->ip_addrs
= NULL
;
502 if (circuit
->ipv6_link
)
504 assert (listcount(circuit
->ipv6_link
) == 0);
505 list_delete (circuit
->ipv6_link
);
506 circuit
->ipv6_link
= NULL
;
509 if (circuit
->ipv6_non_link
)
511 assert (listcount(circuit
->ipv6_non_link
) == 0);
512 list_delete (circuit
->ipv6_non_link
);
513 circuit
->ipv6_non_link
= NULL
;
515 #endif /* HAVE_IPV6 */
517 circuit
->circ_type
= CIRCUIT_T_UNKNOWN
;
518 circuit
->circuit_id
= 0;
524 isis_circuit_if_bind (struct isis_circuit
*circuit
, struct interface
*ifp
)
526 assert (circuit
!= NULL
);
527 assert (ifp
!= NULL
);
528 if (circuit
->interface
)
529 assert (circuit
->interface
== ifp
);
531 circuit
->interface
= ifp
;
533 assert (ifp
->info
== circuit
);
536 isis_link_params_update (circuit
, ifp
);
540 isis_circuit_if_unbind (struct isis_circuit
*circuit
, struct interface
*ifp
)
542 assert (circuit
!= NULL
);
543 assert (ifp
!= NULL
);
544 assert (circuit
->interface
== ifp
);
545 assert (ifp
->info
== circuit
);
546 circuit
->interface
= NULL
;
551 isis_circuit_update_all_srmflags (struct isis_circuit
*circuit
, int is_set
)
553 struct isis_area
*area
;
554 struct isis_lsp
*lsp
;
555 dnode_t
*dnode
, *dnode_next
;
559 area
= circuit
->area
;
561 for (level
= ISIS_LEVEL1
; level
<= ISIS_LEVEL2
; level
++)
563 if (level
& circuit
->is_type
)
565 if (area
->lspdb
[level
- 1] &&
566 dict_count (area
->lspdb
[level
- 1]) > 0)
568 for (dnode
= dict_first (area
->lspdb
[level
- 1]);
569 dnode
!= NULL
; dnode
= dnode_next
)
571 dnode_next
= dict_next (area
->lspdb
[level
- 1], dnode
);
572 lsp
= dnode_get (dnode
);
575 ISIS_SET_FLAG (lsp
->SRMflags
, circuit
);
579 ISIS_CLEAR_FLAG (lsp
->SRMflags
, circuit
);
588 isis_circuit_pdu_size(struct isis_circuit
*circuit
)
590 return ISO_MTU(circuit
);
594 isis_circuit_stream(struct isis_circuit
*circuit
, struct stream
**stream
)
596 size_t stream_size
= isis_circuit_pdu_size(circuit
);
600 *stream
= stream_new(stream_size
);
604 if (STREAM_SIZE(*stream
) != stream_size
)
605 stream_resize(*stream
, stream_size
);
606 stream_reset(*stream
);
611 isis_circuit_up (struct isis_circuit
*circuit
)
615 /* Set the flags for all the lsps of the circuit. */
616 isis_circuit_update_all_srmflags (circuit
, 1);
618 if (circuit
->state
== C_STATE_UP
)
621 if (circuit
->is_passive
)
624 if (circuit
->area
->lsp_mtu
> isis_circuit_pdu_size(circuit
))
626 zlog_err("Interface MTU %zu on %s is too low to support area lsp mtu %u!",
627 isis_circuit_pdu_size(circuit
), circuit
->interface
->name
,
628 circuit
->area
->lsp_mtu
);
629 isis_circuit_update_all_srmflags(circuit
, 0);
633 if (circuit
->circ_type
== CIRCUIT_T_BROADCAST
)
636 * Get the Hardware Address
638 if (circuit
->interface
->hw_addr_len
!= ETH_ALEN
)
640 zlog_warn ("unsupported link layer");
644 memcpy (circuit
->u
.bc
.snpa
, circuit
->interface
->hw_addr
, ETH_ALEN
);
647 zlog_debug ("isis_circuit_if_add: if_id %d, isomtu %d snpa %s",
648 circuit
->interface
->ifindex
, ISO_MTU (circuit
),
649 snpa_print (circuit
->u
.bc
.snpa
));
650 #endif /* EXTREME_DEBUG */
652 circuit
->u
.bc
.adjdb
[0] = list_new ();
653 circuit
->u
.bc
.adjdb
[1] = list_new ();
656 * ISO 10589 - 8.4.1 Enabling of broadcast circuits
659 /* initilizing the hello sending threads
663 /* 8.4.1 a) commence sending of IIH PDUs */
665 if (circuit
->is_type
& IS_LEVEL_1
)
667 thread_add_event (master
, send_lan_l1_hello
, circuit
, 0);
668 circuit
->u
.bc
.lan_neighs
[0] = list_new ();
671 if (circuit
->is_type
& IS_LEVEL_2
)
673 thread_add_event (master
, send_lan_l2_hello
, circuit
, 0);
674 circuit
->u
.bc
.lan_neighs
[1] = list_new ();
677 /* 8.4.1 b) FIXME: solicit ES - 8.4.6 */
678 /* 8.4.1 c) FIXME: listen for ESH PDUs */
681 /* dr election will commence in... */
682 if (circuit
->is_type
& IS_LEVEL_1
)
683 THREAD_TIMER_ON (master
, circuit
->u
.bc
.t_run_dr
[0], isis_run_dr_l1
,
684 circuit
, 2 * circuit
->hello_interval
[0]);
685 if (circuit
->is_type
& IS_LEVEL_2
)
686 THREAD_TIMER_ON (master
, circuit
->u
.bc
.t_run_dr
[1], isis_run_dr_l2
,
687 circuit
, 2 * circuit
->hello_interval
[1]);
691 /* initializing the hello send threads
694 circuit
->u
.p2p
.neighbor
= NULL
;
695 thread_add_event (master
, send_p2p_hello
, circuit
, 0);
698 /* initializing PSNP timers */
699 if (circuit
->is_type
& IS_LEVEL_1
)
700 THREAD_TIMER_ON (master
, circuit
->t_send_psnp
[0], send_l1_psnp
, circuit
,
701 isis_jitter (circuit
->psnp_interval
[0], PSNP_JITTER
));
703 if (circuit
->is_type
& IS_LEVEL_2
)
704 THREAD_TIMER_ON (master
, circuit
->t_send_psnp
[1], send_l2_psnp
, circuit
,
705 isis_jitter (circuit
->psnp_interval
[1], PSNP_JITTER
));
707 /* unified init for circuits; ignore warnings below this level */
708 retv
= isis_sock_init (circuit
);
711 isis_circuit_down (circuit
);
715 /* initialize the circuit streams after opening connection */
716 isis_circuit_stream(circuit
, &circuit
->rcv_stream
);
717 isis_circuit_stream(circuit
, &circuit
->snd_stream
);
720 THREAD_READ_ON (master
, circuit
->t_read
, isis_receive
, circuit
,
723 THREAD_TIMER_ON (master
, circuit
->t_read
, isis_receive
, circuit
,
727 circuit
->lsp_queue
= list_new ();
728 circuit
->lsp_queue_last_cleared
= time (NULL
);
734 isis_circuit_down (struct isis_circuit
*circuit
)
736 if (circuit
->state
!= C_STATE_UP
)
739 /* Clear the flags for all the lsps of the circuit. */
740 isis_circuit_update_all_srmflags (circuit
, 0);
742 if (circuit
->circ_type
== CIRCUIT_T_BROADCAST
)
744 /* destroy neighbour lists */
745 if (circuit
->u
.bc
.lan_neighs
[0])
747 list_delete (circuit
->u
.bc
.lan_neighs
[0]);
748 circuit
->u
.bc
.lan_neighs
[0] = NULL
;
750 if (circuit
->u
.bc
.lan_neighs
[1])
752 list_delete (circuit
->u
.bc
.lan_neighs
[1]);
753 circuit
->u
.bc
.lan_neighs
[1] = NULL
;
755 /* destroy adjacency databases */
756 if (circuit
->u
.bc
.adjdb
[0])
758 circuit
->u
.bc
.adjdb
[0]->del
= isis_delete_adj
;
759 list_delete (circuit
->u
.bc
.adjdb
[0]);
760 circuit
->u
.bc
.adjdb
[0] = NULL
;
762 if (circuit
->u
.bc
.adjdb
[1])
764 circuit
->u
.bc
.adjdb
[1]->del
= isis_delete_adj
;
765 list_delete (circuit
->u
.bc
.adjdb
[1]);
766 circuit
->u
.bc
.adjdb
[1] = NULL
;
768 if (circuit
->u
.bc
.is_dr
[0])
770 isis_dr_resign (circuit
, 1);
771 circuit
->u
.bc
.is_dr
[0] = 0;
773 memset (circuit
->u
.bc
.l1_desig_is
, 0, ISIS_SYS_ID_LEN
+ 1);
774 if (circuit
->u
.bc
.is_dr
[1])
776 isis_dr_resign (circuit
, 2);
777 circuit
->u
.bc
.is_dr
[1] = 0;
779 memset (circuit
->u
.bc
.l2_desig_is
, 0, ISIS_SYS_ID_LEN
+ 1);
780 memset (circuit
->u
.bc
.snpa
, 0, ETH_ALEN
);
782 THREAD_TIMER_OFF (circuit
->u
.bc
.t_send_lan_hello
[0]);
783 THREAD_TIMER_OFF (circuit
->u
.bc
.t_send_lan_hello
[1]);
784 THREAD_TIMER_OFF (circuit
->u
.bc
.t_run_dr
[0]);
785 THREAD_TIMER_OFF (circuit
->u
.bc
.t_run_dr
[1]);
786 THREAD_TIMER_OFF (circuit
->u
.bc
.t_refresh_pseudo_lsp
[0]);
787 THREAD_TIMER_OFF (circuit
->u
.bc
.t_refresh_pseudo_lsp
[1]);
788 circuit
->lsp_regenerate_pending
[0] = 0;
789 circuit
->lsp_regenerate_pending
[1] = 0;
791 else if (circuit
->circ_type
== CIRCUIT_T_P2P
)
793 isis_delete_adj (circuit
->u
.p2p
.neighbor
);
794 circuit
->u
.p2p
.neighbor
= NULL
;
795 THREAD_TIMER_OFF (circuit
->u
.p2p
.t_send_p2p_hello
);
798 /* Cancel all active threads */
799 THREAD_TIMER_OFF (circuit
->t_send_csnp
[0]);
800 THREAD_TIMER_OFF (circuit
->t_send_csnp
[1]);
801 THREAD_TIMER_OFF (circuit
->t_send_psnp
[0]);
802 THREAD_TIMER_OFF (circuit
->t_send_psnp
[1]);
803 THREAD_OFF (circuit
->t_read
);
805 if (circuit
->lsp_queue
)
807 circuit
->lsp_queue
->del
= NULL
;
808 list_delete (circuit
->lsp_queue
);
809 circuit
->lsp_queue
= NULL
;
812 /* send one gratuitous hello to spead up convergence */
813 if (circuit
->is_type
& IS_LEVEL_1
)
814 send_hello (circuit
, IS_LEVEL_1
);
815 if (circuit
->is_type
& IS_LEVEL_2
)
816 send_hello (circuit
, IS_LEVEL_2
);
818 circuit
->upadjcount
[0] = 0;
819 circuit
->upadjcount
[1] = 0;
821 /* close the socket */
828 if (circuit
->rcv_stream
!= NULL
)
830 stream_free (circuit
->rcv_stream
);
831 circuit
->rcv_stream
= NULL
;
834 if (circuit
->snd_stream
!= NULL
)
836 stream_free (circuit
->snd_stream
);
837 circuit
->snd_stream
= NULL
;
840 thread_cancel_event (master
, circuit
);
846 circuit_update_nlpids (struct isis_circuit
*circuit
)
848 circuit
->nlpids
.count
= 0;
850 if (circuit
->ip_router
)
852 circuit
->nlpids
.nlpids
[0] = NLPID_IP
;
853 circuit
->nlpids
.count
++;
856 if (circuit
->ipv6_router
)
858 circuit
->nlpids
.nlpids
[circuit
->nlpids
.count
] = NLPID_IPV6
;
859 circuit
->nlpids
.count
++;
861 #endif /* HAVE_IPV6 */
866 isis_circuit_print_vty (struct isis_circuit
*circuit
, struct vty
*vty
,
869 if (detail
== ISIS_UI_LEVEL_BRIEF
)
871 vty_out (vty
, " %-12s", circuit
->interface
->name
);
872 vty_out (vty
, "0x%-7x", circuit
->circuit_id
);
873 vty_out (vty
, "%-9s", circuit_state2string (circuit
->state
));
874 vty_out (vty
, "%-9s", circuit_type2string (circuit
->circ_type
));
875 vty_out (vty
, "%-9s", circuit_t2string (circuit
->is_type
));
876 vty_out (vty
, "%s", VTY_NEWLINE
);
879 if (detail
== ISIS_UI_LEVEL_DETAIL
)
881 struct listnode
*node
;
882 struct prefix
*ip_addr
;
885 vty_out (vty
, " Interface: %s", circuit
->interface
->name
);
886 vty_out (vty
, ", State: %s", circuit_state2string (circuit
->state
));
887 if (circuit
->is_passive
)
888 vty_out (vty
, ", Passive");
890 vty_out (vty
, ", Active");
891 vty_out (vty
, ", Circuit Id: 0x%x", circuit
->circuit_id
);
892 vty_out (vty
, "%s", VTY_NEWLINE
);
893 vty_out (vty
, " Type: %s", circuit_type2string (circuit
->circ_type
));
894 vty_out (vty
, ", Level: %s", circuit_t2string (circuit
->is_type
));
895 if (circuit
->circ_type
== CIRCUIT_T_BROADCAST
)
896 vty_out (vty
, ", SNPA: %-10s", snpa_print (circuit
->u
.bc
.snpa
));
897 vty_out (vty
, "%s", VTY_NEWLINE
);
898 if (circuit
->is_type
& IS_LEVEL_1
)
900 vty_out (vty
, " Level-1 Information:%s", VTY_NEWLINE
);
901 if (circuit
->area
->newmetric
)
902 vty_out (vty
, " Metric: %d", circuit
->te_metric
[0]);
904 vty_out (vty
, " Metric: %d",
906 if (!circuit
->is_passive
)
908 vty_out (vty
, ", Active neighbors: %u%s",
909 circuit
->upadjcount
[0], VTY_NEWLINE
);
910 vty_out (vty
, " Hello interval: %u, "
911 "Holddown count: %u %s%s",
912 circuit
->hello_interval
[0],
913 circuit
->hello_multiplier
[0],
914 (circuit
->pad_hellos
? "(pad)" : "(no-pad)"),
916 vty_out (vty
, " CNSP interval: %u, "
917 "PSNP interval: %u%s",
918 circuit
->csnp_interval
[0],
919 circuit
->psnp_interval
[0], VTY_NEWLINE
);
920 if (circuit
->circ_type
== CIRCUIT_T_BROADCAST
)
921 vty_out (vty
, " LAN Priority: %u, %s%s",
922 circuit
->priority
[0],
923 (circuit
->u
.bc
.is_dr
[0] ? \
924 "is DIS" : "is not DIS"), VTY_NEWLINE
);
928 vty_out (vty
, "%s", VTY_NEWLINE
);
931 if (circuit
->is_type
& IS_LEVEL_2
)
933 vty_out (vty
, " Level-2 Information:%s", VTY_NEWLINE
);
934 if (circuit
->area
->newmetric
)
935 vty_out (vty
, " Metric: %d", circuit
->te_metric
[1]);
937 vty_out (vty
, " Metric: %d",
939 if (!circuit
->is_passive
)
941 vty_out (vty
, ", Active neighbors: %u%s",
942 circuit
->upadjcount
[1], VTY_NEWLINE
);
943 vty_out (vty
, " Hello interval: %u, "
944 "Holddown count: %u %s%s",
945 circuit
->hello_interval
[1],
946 circuit
->hello_multiplier
[1],
947 (circuit
->pad_hellos
? "(pad)" : "(no-pad)"),
949 vty_out (vty
, " CNSP interval: %u, "
950 "PSNP interval: %u%s",
951 circuit
->csnp_interval
[1],
952 circuit
->psnp_interval
[1], VTY_NEWLINE
);
953 if (circuit
->circ_type
== CIRCUIT_T_BROADCAST
)
954 vty_out (vty
, " LAN Priority: %u, %s%s",
955 circuit
->priority
[1],
956 (circuit
->u
.bc
.is_dr
[1] ? \
957 "is DIS" : "is not DIS"), VTY_NEWLINE
);
961 vty_out (vty
, "%s", VTY_NEWLINE
);
964 if (circuit
->ip_addrs
&& listcount (circuit
->ip_addrs
) > 0)
966 vty_out (vty
, " IP Prefix(es):%s", VTY_NEWLINE
);
967 for (ALL_LIST_ELEMENTS_RO (circuit
->ip_addrs
, node
, ip_addr
))
969 prefix2str (ip_addr
, buf
, sizeof (buf
)),
970 vty_out (vty
, " %s%s", buf
, VTY_NEWLINE
);
973 if (circuit
->ipv6_link
&& listcount(circuit
->ipv6_link
) > 0)
975 vty_out(vty
, " IPv6 Link-Locals:%s", VTY_NEWLINE
);
976 for (ALL_LIST_ELEMENTS_RO(circuit
->ipv6_link
, node
, ip_addr
))
978 prefix2str(ip_addr
, (char*)buf
, BUFSIZ
),
979 vty_out(vty
, " %s%s", buf
, VTY_NEWLINE
);
982 if (circuit
->ipv6_non_link
&& listcount(circuit
->ipv6_non_link
) > 0)
984 vty_out(vty
, " IPv6 Prefixes:%s", VTY_NEWLINE
);
985 for (ALL_LIST_ELEMENTS_RO(circuit
->ipv6_non_link
, node
, ip_addr
))
987 prefix2str(ip_addr
, (char*)buf
, BUFSIZ
),
988 vty_out(vty
, " %s%s", buf
, VTY_NEWLINE
);
992 vty_out (vty
, "%s", VTY_NEWLINE
);
998 isis_interface_config_write (struct vty
*vty
)
1001 struct listnode
*node
, *node2
;
1002 struct interface
*ifp
;
1003 struct isis_area
*area
;
1004 struct isis_circuit
*circuit
;
1007 for (ALL_LIST_ELEMENTS_RO (vrf_iflist (VRF_DEFAULT
), node
, ifp
))
1009 if (ifp
->ifindex
== IFINDEX_DELETED
)
1013 vty_out (vty
, "interface %s%s", ifp
->name
, VTY_NEWLINE
);
1018 vty_out (vty
, " description %s%s", ifp
->desc
, VTY_NEWLINE
);
1022 for (ALL_LIST_ELEMENTS_RO (isis
->area_list
, node2
, area
))
1024 circuit
= circuit_lookup_by_ifp (ifp
, area
->circuit_list
);
1025 if (circuit
== NULL
)
1027 if (circuit
->ip_router
)
1029 vty_out (vty
, " ip router isis %s%s", area
->area_tag
,
1033 if (circuit
->is_passive
)
1035 vty_out (vty
, " isis passive%s", VTY_NEWLINE
);
1038 if (circuit
->circ_type_config
== CIRCUIT_T_P2P
)
1040 vty_out (vty
, " isis network point-to-point%s", VTY_NEWLINE
);
1044 if (circuit
->ipv6_router
)
1046 vty_out (vty
, " ipv6 router isis %s%s", area
->area_tag
,
1050 #endif /* HAVE_IPV6 */
1052 /* ISIS - circuit type */
1053 if (circuit
->is_type
== IS_LEVEL_1
)
1055 vty_out (vty
, " isis circuit-type level-1%s", VTY_NEWLINE
);
1060 if (circuit
->is_type
== IS_LEVEL_2
)
1062 vty_out (vty
, " isis circuit-type level-2-only%s",
1068 /* ISIS - CSNP interval */
1069 if (circuit
->csnp_interval
[0] == circuit
->csnp_interval
[1])
1071 if (circuit
->csnp_interval
[0] != DEFAULT_CSNP_INTERVAL
)
1073 vty_out (vty
, " isis csnp-interval %d%s",
1074 circuit
->csnp_interval
[0], VTY_NEWLINE
);
1080 for (i
= 0; i
< 2; i
++)
1082 if (circuit
->csnp_interval
[i
] != DEFAULT_CSNP_INTERVAL
)
1084 vty_out (vty
, " isis csnp-interval %d level-%d%s",
1085 circuit
->csnp_interval
[i
], i
+ 1, VTY_NEWLINE
);
1091 /* ISIS - PSNP interval */
1092 if (circuit
->psnp_interval
[0] == circuit
->psnp_interval
[1])
1094 if (circuit
->psnp_interval
[0] != DEFAULT_PSNP_INTERVAL
)
1096 vty_out (vty
, " isis psnp-interval %d%s",
1097 circuit
->psnp_interval
[0], VTY_NEWLINE
);
1103 for (i
= 0; i
< 2; i
++)
1105 if (circuit
->psnp_interval
[i
] != DEFAULT_PSNP_INTERVAL
)
1107 vty_out (vty
, " isis psnp-interval %d level-%d%s",
1108 circuit
->psnp_interval
[i
], i
+ 1, VTY_NEWLINE
);
1114 /* ISIS - Hello padding - Defaults to true so only display if false */
1115 if (circuit
->pad_hellos
== 0)
1117 vty_out (vty
, " no isis hello padding%s", VTY_NEWLINE
);
1121 /* ISIS - Hello interval */
1122 if (circuit
->hello_interval
[0] == circuit
->hello_interval
[1])
1124 if (circuit
->hello_interval
[0] != DEFAULT_HELLO_INTERVAL
)
1126 vty_out (vty
, " isis hello-interval %d%s",
1127 circuit
->hello_interval
[0], VTY_NEWLINE
);
1133 for (i
= 0; i
< 2; i
++)
1135 if (circuit
->hello_interval
[i
] != DEFAULT_HELLO_INTERVAL
)
1137 vty_out (vty
, " isis hello-interval %d level-%d%s",
1138 circuit
->hello_interval
[i
], i
+ 1, VTY_NEWLINE
);
1144 /* ISIS - Hello Multiplier */
1145 if (circuit
->hello_multiplier
[0] == circuit
->hello_multiplier
[1])
1147 if (circuit
->hello_multiplier
[0] != DEFAULT_HELLO_MULTIPLIER
)
1149 vty_out (vty
, " isis hello-multiplier %d%s",
1150 circuit
->hello_multiplier
[0], VTY_NEWLINE
);
1156 for (i
= 0; i
< 2; i
++)
1158 if (circuit
->hello_multiplier
[i
] != DEFAULT_HELLO_MULTIPLIER
)
1160 vty_out (vty
, " isis hello-multiplier %d level-%d%s",
1161 circuit
->hello_multiplier
[i
], i
+ 1,
1168 /* ISIS - Priority */
1169 if (circuit
->priority
[0] == circuit
->priority
[1])
1171 if (circuit
->priority
[0] != DEFAULT_PRIORITY
)
1173 vty_out (vty
, " isis priority %d%s",
1174 circuit
->priority
[0], VTY_NEWLINE
);
1180 for (i
= 0; i
< 2; i
++)
1182 if (circuit
->priority
[i
] != DEFAULT_PRIORITY
)
1184 vty_out (vty
, " isis priority %d level-%d%s",
1185 circuit
->priority
[i
], i
+ 1, VTY_NEWLINE
);
1192 if (circuit
->te_metric
[0] == circuit
->te_metric
[1])
1194 if (circuit
->te_metric
[0] != DEFAULT_CIRCUIT_METRIC
)
1196 vty_out (vty
, " isis metric %d%s", circuit
->te_metric
[0],
1203 for (i
= 0; i
< 2; i
++)
1205 if (circuit
->te_metric
[i
] != DEFAULT_CIRCUIT_METRIC
)
1207 vty_out (vty
, " isis metric %d level-%d%s",
1208 circuit
->te_metric
[i
], i
+ 1, VTY_NEWLINE
);
1213 if (circuit
->passwd
.type
== ISIS_PASSWD_TYPE_HMAC_MD5
)
1215 vty_out (vty
, " isis password md5 %s%s", circuit
->passwd
.passwd
,
1219 else if (circuit
->passwd
.type
== ISIS_PASSWD_TYPE_CLEARTXT
)
1221 vty_out (vty
, " isis password clear %s%s", circuit
->passwd
.passwd
,
1226 vty_out (vty
, "!%s", VTY_NEWLINE
);
1232 struct isis_circuit
*
1233 isis_circuit_create (struct isis_area
*area
, struct interface
*ifp
)
1235 struct isis_circuit
*circuit
= circuit_scan_by_ifp (ifp
);
1236 if (circuit
&& circuit
->area
)
1238 circuit
= isis_csm_state_change (ISIS_ENABLE
, circuit
, area
);
1239 if (circuit
->state
!= C_STATE_CONF
&& circuit
->state
!= C_STATE_UP
)
1241 isis_circuit_if_bind (circuit
, ifp
);
1246 isis_circuit_af_set (struct isis_circuit
*circuit
, bool ip_router
, bool ipv6_router
)
1248 struct isis_area
*area
= circuit
->area
;
1249 bool change
= circuit
->ip_router
!= ip_router
|| circuit
->ipv6_router
!= ipv6_router
;
1250 bool was_enabled
= !!circuit
->area
;
1252 area
->ip_circuits
+= ip_router
- circuit
->ip_router
;
1253 area
->ipv6_circuits
+= ipv6_router
- circuit
->ipv6_router
;
1254 circuit
->ip_router
= ip_router
;
1255 circuit
->ipv6_router
= ipv6_router
;
1260 circuit_update_nlpids (circuit
);
1262 if (!ip_router
&& !ipv6_router
)
1263 isis_csm_state_change (ISIS_DISABLE
, circuit
, area
);
1264 else if (!was_enabled
)
1265 isis_csm_state_change (ISIS_ENABLE
, circuit
, area
);
1267 lsp_regenerate_schedule(circuit
->area
, circuit
->is_type
, 0);
1271 isis_circuit_passive_set (struct isis_circuit
*circuit
, bool passive
)
1273 if (circuit
->is_passive
== passive
)
1276 if (if_is_loopback (circuit
->interface
) && !passive
)
1279 if (circuit
->state
!= C_STATE_UP
)
1281 circuit
->is_passive
= passive
;
1285 struct isis_area
*area
= circuit
->area
;
1286 isis_csm_state_change (ISIS_DISABLE
, circuit
, area
);
1287 circuit
->is_passive
= passive
;
1288 isis_csm_state_change (ISIS_ENABLE
, circuit
, area
);
1295 isis_circuit_metric_set (struct isis_circuit
*circuit
, int level
, int metric
)
1297 assert (level
== IS_LEVEL_1
|| level
== IS_LEVEL_2
);
1298 if (metric
> MAX_WIDE_LINK_METRIC
)
1300 if (circuit
->area
&& circuit
->area
->oldmetric
1301 && metric
> MAX_NARROW_LINK_METRIC
)
1304 circuit
->te_metric
[level
- 1] = metric
;
1305 circuit
->metric
[level
- 1] = metric
;
1308 lsp_regenerate_schedule (circuit
->area
, level
, 0);
1313 isis_circuit_passwd_unset (struct isis_circuit
*circuit
)
1315 memset(&circuit
->passwd
, 0, sizeof(circuit
->passwd
));
1320 isis_circuit_passwd_set (struct isis_circuit
*circuit
, u_char passwd_type
, const char *passwd
)
1327 len
= strlen(passwd
);
1331 circuit
->passwd
.len
= len
;
1332 strncpy((char *)circuit
->passwd
.passwd
, passwd
, 255);
1333 circuit
->passwd
.type
= passwd_type
;
1338 isis_circuit_passwd_cleartext_set (struct isis_circuit
*circuit
, const char *passwd
)
1340 return isis_circuit_passwd_set (circuit
, ISIS_PASSWD_TYPE_CLEARTXT
, passwd
);
1344 isis_circuit_passwd_hmac_md5_set (struct isis_circuit
*circuit
, const char *passwd
)
1346 return isis_circuit_passwd_set (circuit
, ISIS_PASSWD_TYPE_HMAC_MD5
, passwd
);
1348 struct cmd_node interface_node
= {
1355 isis_circuit_circ_type_set(struct isis_circuit
*circuit
, int circ_type
)
1357 /* Changing the network type to/of loopback or unknown interfaces
1358 * is not supported. */
1359 if (circ_type
== CIRCUIT_T_UNKNOWN
1360 || circ_type
== CIRCUIT_T_LOOPBACK
1361 || circuit
->circ_type
== CIRCUIT_T_LOOPBACK
)
1363 if (circuit
->circ_type
!= circ_type
)
1369 if (circuit
->circ_type
== circ_type
)
1372 if (circuit
->state
!= C_STATE_UP
)
1374 circuit
->circ_type
= circ_type
;
1375 circuit
->circ_type_config
= circ_type
;
1379 struct isis_area
*area
= circuit
->area
;
1380 if (circ_type
== CIRCUIT_T_BROADCAST
1381 && !if_is_broadcast(circuit
->interface
))
1384 isis_csm_state_change(ISIS_DISABLE
, circuit
, area
);
1385 circuit
->circ_type
= circ_type
;
1386 circuit
->circ_type_config
= circ_type
;
1387 isis_csm_state_change(ISIS_ENABLE
, circuit
, area
);
1393 isis_if_new_hook (struct interface
*ifp
)
1399 isis_if_delete_hook (struct interface
*ifp
)
1401 struct isis_circuit
*circuit
;
1402 /* Clean up the circuit data */
1403 if (ifp
&& ifp
->info
)
1405 circuit
= ifp
->info
;
1406 isis_csm_state_change (IF_DOWN_FROM_Z
, circuit
, circuit
->area
);
1407 isis_csm_state_change (ISIS_DISABLE
, circuit
, circuit
->area
);
1414 isis_circuit_init ()
1416 /* Initialize Zebra interface data structure */
1417 if_add_hook (IF_NEW_HOOK
, isis_if_new_hook
);
1418 if_add_hook (IF_DELETE_HOOK
, isis_if_delete_hook
);
1420 /* Install interface node */
1421 install_node (&interface_node
, isis_interface_config_write
);
1422 install_element (CONFIG_NODE
, &interface_cmd
);
1423 install_element (CONFIG_NODE
, &no_interface_cmd
);
1425 install_default (INTERFACE_NODE
);
1426 install_element (INTERFACE_NODE
, &interface_desc_cmd
);
1427 install_element (INTERFACE_NODE
, &no_interface_desc_cmd
);