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
44 #include "isisd/dict.h"
45 #include "isisd/include-netbsd/iso.h"
46 #include "isisd/isis_constants.h"
47 #include "isisd/isis_common.h"
48 #include "isisd/isis_flags.h"
49 #include "isisd/isis_circuit.h"
50 #include "isisd/isis_tlv.h"
51 #include "isisd/isis_lsp.h"
52 #include "isisd/isis_pdu.h"
53 #include "isisd/isis_network.h"
54 #include "isisd/isis_misc.h"
55 #include "isisd/isis_constants.h"
56 #include "isisd/isis_adjacency.h"
57 #include "isisd/isis_dr.h"
58 #include "isisd/isisd.h"
59 #include "isisd/isis_csm.h"
60 #include "isisd/isis_events.h"
61 #include "isisd/isis_te.h"
66 int isis_interface_config_write(struct vty *);
67 int isis_if_new_hook(struct interface *);
68 int isis_if_delete_hook(struct interface *);
73 struct isis_circuit *circuit;
76 circuit = XCALLOC (MTYPE_ISIS_CIRCUIT, sizeof (struct isis_circuit));
79 zlog_err ("Can't malloc isis circuit");
86 circuit->is_type = IS_LEVEL_1_AND_2;
88 circuit->pad_hellos = 1;
89 for (i = 0; i < 2; i++)
91 circuit->hello_interval[i] = DEFAULT_HELLO_INTERVAL;
92 circuit->hello_multiplier[i] = DEFAULT_HELLO_MULTIPLIER;
93 circuit->csnp_interval[i] = DEFAULT_CSNP_INTERVAL;
94 circuit->psnp_interval[i] = DEFAULT_PSNP_INTERVAL;
95 circuit->priority[i] = DEFAULT_PRIORITY;
96 circuit->metric[i] = DEFAULT_CIRCUIT_METRIC;
97 circuit->te_metric[i] = DEFAULT_CIRCUIT_METRIC;
100 circuit->mtc = mpls_te_circuit_new();
106 isis_circuit_del (struct isis_circuit *circuit)
111 isis_circuit_if_unbind (circuit, circuit->interface);
113 /* and lastly the circuit itself */
114 XFREE (MTYPE_ISIS_CIRCUIT, circuit);
120 isis_circuit_configure (struct isis_circuit *circuit, struct isis_area *area)
123 circuit->area = area;
126 * Whenever the is-type of an area is changed, the is-type of each circuit
127 * in that area is updated to a non-empty subset of the area is-type.
128 * Inversely, when configuring a new circuit, this property should be
131 if (area->is_type != IS_LEVEL_1_AND_2)
132 circuit->is_type = area->is_type;
135 * Add the circuit into area
137 listnode_add (area->circuit_list, circuit);
139 circuit->idx = flags_get_index (&area->flags);
145 isis_circuit_deconfigure (struct isis_circuit *circuit, struct isis_area *area)
147 /* Free the index of SRM and SSN flags */
148 flags_free_index (&area->flags, circuit->idx);
150 /* Remove circuit from area */
151 assert (circuit->area == area);
152 listnode_delete (area->circuit_list, circuit);
153 circuit->area = NULL;
158 struct isis_circuit *
159 circuit_lookup_by_ifp (struct interface *ifp, struct list *list)
161 struct isis_circuit *circuit = NULL;
162 struct listnode *node;
167 for (ALL_LIST_ELEMENTS_RO (list, node, circuit))
168 if (circuit->interface == ifp)
170 assert (ifp->info == circuit);
177 struct isis_circuit *
178 circuit_scan_by_ifp (struct interface *ifp)
180 struct isis_area *area;
181 struct listnode *node;
182 struct isis_circuit *circuit;
185 return (struct isis_circuit *)ifp->info;
189 for (ALL_LIST_ELEMENTS_RO (isis->area_list, node, area))
191 circuit = circuit_lookup_by_ifp (ifp, area->circuit_list);
196 return circuit_lookup_by_ifp (ifp, isis->init_circ_list);
200 isis_circuit_add_addr (struct isis_circuit *circuit,
201 struct connected *connected)
203 struct listnode *node;
204 struct prefix_ipv4 *ipv4;
207 struct prefix_ipv6 *ipv6;
208 #endif /* HAVE_IPV6 */
210 memset (&buf, 0, BUFSIZ);
211 if (connected->address->family == AF_INET)
213 u_int32_t addr = connected->address->u.prefix4.s_addr;
215 if (IPV4_NET0(addr) ||
218 IPV4_LINKLOCAL(addr))
221 for (ALL_LIST_ELEMENTS_RO (circuit->ip_addrs, node, ipv4))
222 if (prefix_same ((struct prefix *) ipv4, connected->address))
225 ipv4 = prefix_ipv4_new ();
226 ipv4->prefixlen = connected->address->prefixlen;
227 ipv4->prefix = connected->address->u.prefix4;
228 listnode_add (circuit->ip_addrs, ipv4);
230 /* Update MPLS TE Local IP address parameter */
231 set_circuitparams_local_ipaddr (circuit->mtc, ipv4->prefix);
234 lsp_regenerate_schedule (circuit->area, circuit->is_type, 0);
237 prefix2str (connected->address, buf, BUFSIZ);
238 zlog_debug ("Added IP address %s to circuit %d", buf,
239 circuit->circuit_id);
240 #endif /* EXTREME_DEBUG */
243 if (connected->address->family == AF_INET6)
245 if (IN6_IS_ADDR_LOOPBACK(&connected->address->u.prefix6))
248 for (ALL_LIST_ELEMENTS_RO (circuit->ipv6_link, node, ipv6))
249 if (prefix_same ((struct prefix *) ipv6, connected->address))
251 for (ALL_LIST_ELEMENTS_RO (circuit->ipv6_non_link, node, ipv6))
252 if (prefix_same ((struct prefix *) ipv6, connected->address))
255 ipv6 = prefix_ipv6_new ();
256 ipv6->prefixlen = connected->address->prefixlen;
257 ipv6->prefix = connected->address->u.prefix6;
259 if (IN6_IS_ADDR_LINKLOCAL (&ipv6->prefix))
260 listnode_add (circuit->ipv6_link, ipv6);
262 listnode_add (circuit->ipv6_non_link, ipv6);
264 lsp_regenerate_schedule (circuit->area, circuit->is_type, 0);
267 prefix2str (connected->address, buf, BUFSIZ);
268 zlog_debug ("Added IPv6 address %s to circuit %d", buf,
269 circuit->circuit_id);
270 #endif /* EXTREME_DEBUG */
272 #endif /* HAVE_IPV6 */
277 isis_circuit_del_addr (struct isis_circuit *circuit,
278 struct connected *connected)
280 struct prefix_ipv4 *ipv4, *ip = NULL;
281 struct listnode *node;
284 struct prefix_ipv6 *ipv6, *ip6 = NULL;
286 #endif /* HAVE_IPV6 */
288 memset (&buf, 0, BUFSIZ);
289 if (connected->address->family == AF_INET)
291 ipv4 = prefix_ipv4_new ();
292 ipv4->prefixlen = connected->address->prefixlen;
293 ipv4->prefix = connected->address->u.prefix4;
295 for (ALL_LIST_ELEMENTS_RO (circuit->ip_addrs, node, ip))
296 if (prefix_same ((struct prefix *) ip, (struct prefix *) ipv4))
301 listnode_delete (circuit->ip_addrs, ip);
303 lsp_regenerate_schedule (circuit->area, circuit->is_type, 0);
307 prefix2str (connected->address, (char *)buf, BUFSIZ);
308 zlog_warn ("Nonexitant ip address %s removal attempt from \
309 circuit %d", buf, circuit->circuit_id);
310 zlog_warn ("Current ip addresses on %s:", circuit->interface->name);
311 for (ALL_LIST_ELEMENTS_RO(circuit->ip_addrs, node, ip))
313 prefix2str((struct prefix*)ip, (char *)buf, BUFSIZ);
314 zlog_warn(" %s", buf);
316 zlog_warn("End of addresses");
319 prefix_ipv4_free (ipv4);
322 if (connected->address->family == AF_INET6)
324 ipv6 = prefix_ipv6_new ();
325 ipv6->prefixlen = connected->address->prefixlen;
326 ipv6->prefix = connected->address->u.prefix6;
328 if (IN6_IS_ADDR_LINKLOCAL (&ipv6->prefix))
330 for (ALL_LIST_ELEMENTS_RO (circuit->ipv6_link, node, ip6))
332 if (prefix_same ((struct prefix *) ip6, (struct prefix *) ipv6))
337 listnode_delete (circuit->ipv6_link, ip6);
343 for (ALL_LIST_ELEMENTS_RO (circuit->ipv6_non_link, node, ip6))
345 if (prefix_same ((struct prefix *) ip6, (struct prefix *) ipv6))
350 listnode_delete (circuit->ipv6_non_link, ip6);
357 prefix2str (connected->address, (char *)buf, BUFSIZ);
358 zlog_warn ("Nonexitant ip address %s removal attempt from \
359 circuit %d", buf, circuit->circuit_id);
360 zlog_warn ("Current ip addresses on %s:", circuit->interface->name);
361 for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_link, node, ip6))
363 prefix2str((struct prefix*)ip6, (char *)buf, BUFSIZ);
364 zlog_warn(" %s", buf);
367 for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_non_link, node, ip6))
369 prefix2str((struct prefix*)ip6, (char *)buf, BUFSIZ);
370 zlog_warn(" %s", buf);
372 zlog_warn("End of addresses");
374 else if (circuit->area)
375 lsp_regenerate_schedule (circuit->area, circuit->is_type, 0);
377 prefix_ipv6_free (ipv6);
379 #endif /* HAVE_IPV6 */
384 isis_circuit_id_gen (struct interface *ifp)
389 int start = -1, end = -1;
392 * Get a stable circuit id from ifname. This makes
393 * the ifindex from flapping when netdevs are created
394 * and deleted on the fly. Note that this circuit id
395 * is used in pseudo lsps so it is better to be stable.
396 * The following code works on any reasonanle ifname
397 * like: eth1 or trk-1.1 etc.
399 for (i = 0; i < strlen (ifp->name); i++)
401 if (isdigit((unsigned char)ifp->name[i]))
417 if ((start >= 0) && (end >= start) && (end - start) < 16)
419 memset (ifname, 0, 16);
420 strncpy (ifname, &ifp->name[start], end - start);
421 id = (u_char)atoi(ifname);
424 /* Try to be unique. */
426 id = (u_char)((ifp->ifindex & 0xff) | 0x80);
432 isis_circuit_if_add (struct isis_circuit *circuit, struct interface *ifp)
434 struct listnode *node, *nnode;
435 struct connected *conn;
437 circuit->circuit_id = isis_circuit_id_gen (ifp);
439 isis_circuit_if_bind (circuit, ifp);
440 /* isis_circuit_update_addrs (circuit, ifp); */
442 if (if_is_broadcast (ifp))
444 if (circuit->circ_type_config == CIRCUIT_T_P2P)
445 circuit->circ_type = CIRCUIT_T_P2P;
447 circuit->circ_type = CIRCUIT_T_BROADCAST;
449 else if (if_is_pointopoint (ifp))
451 circuit->circ_type = CIRCUIT_T_P2P;
453 else if (if_is_loopback (ifp))
455 circuit->circ_type = CIRCUIT_T_LOOPBACK;
456 circuit->is_passive = 1;
460 /* It's normal in case of loopback etc. */
461 if (isis->debugs & DEBUG_EVENTS)
462 zlog_debug ("isis_circuit_if_add: unsupported media");
463 circuit->circ_type = CIRCUIT_T_UNKNOWN;
466 circuit->ip_addrs = list_new ();
468 circuit->ipv6_link = list_new ();
469 circuit->ipv6_non_link = list_new ();
470 #endif /* HAVE_IPV6 */
472 for (ALL_LIST_ELEMENTS (ifp->connected, node, nnode, conn))
473 isis_circuit_add_addr (circuit, conn);
479 isis_circuit_if_del (struct isis_circuit *circuit, struct interface *ifp)
481 struct listnode *node, *nnode;
482 struct connected *conn;
484 assert (circuit->interface == ifp);
486 /* destroy addresses */
487 for (ALL_LIST_ELEMENTS (ifp->connected, node, nnode, conn))
488 isis_circuit_del_addr (circuit, conn);
490 if (circuit->ip_addrs)
492 assert (listcount(circuit->ip_addrs) == 0);
493 list_delete (circuit->ip_addrs);
494 circuit->ip_addrs = NULL;
498 if (circuit->ipv6_link)
500 assert (listcount(circuit->ipv6_link) == 0);
501 list_delete (circuit->ipv6_link);
502 circuit->ipv6_link = NULL;
505 if (circuit->ipv6_non_link)
507 assert (listcount(circuit->ipv6_non_link) == 0);
508 list_delete (circuit->ipv6_non_link);
509 circuit->ipv6_non_link = NULL;
511 #endif /* HAVE_IPV6 */
513 circuit->circ_type = CIRCUIT_T_UNKNOWN;
514 circuit->circuit_id = 0;
520 isis_circuit_if_bind (struct isis_circuit *circuit, struct interface *ifp)
522 assert (circuit != NULL);
523 assert (ifp != NULL);
524 if (circuit->interface)
525 assert (circuit->interface == ifp);
527 circuit->interface = ifp;
529 assert (ifp->info == circuit);
532 isis_link_params_update (circuit, ifp);
536 isis_circuit_if_unbind (struct isis_circuit *circuit, struct interface *ifp)
538 assert (circuit != NULL);
539 assert (ifp != NULL);
540 assert (circuit->interface == ifp);
541 assert (ifp->info == circuit);
542 circuit->interface = NULL;
547 isis_circuit_update_all_srmflags (struct isis_circuit *circuit, int is_set)
549 struct isis_area *area;
550 struct isis_lsp *lsp;
551 dnode_t *dnode, *dnode_next;
555 area = circuit->area;
557 for (level = ISIS_LEVEL1; level <= ISIS_LEVEL2; level++)
559 if (level & circuit->is_type)
561 if (area->lspdb[level - 1] &&
562 dict_count (area->lspdb[level - 1]) > 0)
564 for (dnode = dict_first (area->lspdb[level - 1]);
565 dnode != NULL; dnode = dnode_next)
567 dnode_next = dict_next (area->lspdb[level - 1], dnode);
568 lsp = dnode_get (dnode);
571 ISIS_SET_FLAG (lsp->SRMflags, circuit);
575 ISIS_CLEAR_FLAG (lsp->SRMflags, circuit);
584 isis_circuit_pdu_size(struct isis_circuit *circuit)
586 return ISO_MTU(circuit);
590 isis_circuit_stream(struct isis_circuit *circuit, struct stream **stream)
592 size_t stream_size = isis_circuit_pdu_size(circuit);
596 *stream = stream_new(stream_size);
600 if (STREAM_SIZE(*stream) != stream_size)
601 stream_resize(*stream, stream_size);
602 stream_reset(*stream);
607 isis_circuit_up (struct isis_circuit *circuit)
611 /* Set the flags for all the lsps of the circuit. */
612 isis_circuit_update_all_srmflags (circuit, 1);
614 if (circuit->state == C_STATE_UP)
617 if (circuit->is_passive)
620 if (circuit->area->lsp_mtu > isis_circuit_pdu_size(circuit))
622 zlog_err("Interface MTU %zu on %s is too low to support area lsp mtu %u!",
623 isis_circuit_pdu_size(circuit), circuit->interface->name,
624 circuit->area->lsp_mtu);
625 isis_circuit_update_all_srmflags(circuit, 0);
629 if (circuit->circ_type == CIRCUIT_T_BROADCAST)
632 * Get the Hardware Address
634 if (circuit->interface->hw_addr_len != ETH_ALEN)
636 zlog_warn ("unsupported link layer");
640 memcpy (circuit->u.bc.snpa, circuit->interface->hw_addr, ETH_ALEN);
643 zlog_debug ("isis_circuit_if_add: if_id %d, isomtu %d snpa %s",
644 circuit->interface->ifindex, ISO_MTU (circuit),
645 snpa_print (circuit->u.bc.snpa));
646 #endif /* EXTREME_DEBUG */
648 circuit->u.bc.adjdb[0] = list_new ();
649 circuit->u.bc.adjdb[1] = list_new ();
652 * ISO 10589 - 8.4.1 Enabling of broadcast circuits
655 /* initilizing the hello sending threads
659 /* 8.4.1 a) commence sending of IIH PDUs */
661 if (circuit->is_type & IS_LEVEL_1)
663 thread_add_event (master, send_lan_l1_hello, circuit, 0);
664 circuit->u.bc.lan_neighs[0] = list_new ();
667 if (circuit->is_type & IS_LEVEL_2)
669 thread_add_event (master, send_lan_l2_hello, circuit, 0);
670 circuit->u.bc.lan_neighs[1] = list_new ();
673 /* 8.4.1 b) FIXME: solicit ES - 8.4.6 */
674 /* 8.4.1 c) FIXME: listen for ESH PDUs */
677 /* dr election will commence in... */
678 if (circuit->is_type & IS_LEVEL_1)
679 THREAD_TIMER_ON (master, circuit->u.bc.t_run_dr[0], isis_run_dr_l1,
680 circuit, 2 * circuit->hello_interval[0]);
681 if (circuit->is_type & IS_LEVEL_2)
682 THREAD_TIMER_ON (master, circuit->u.bc.t_run_dr[1], isis_run_dr_l2,
683 circuit, 2 * circuit->hello_interval[1]);
687 /* initializing the hello send threads
690 circuit->u.p2p.neighbor = NULL;
691 thread_add_event (master, send_p2p_hello, circuit, 0);
694 /* initializing PSNP timers */
695 if (circuit->is_type & IS_LEVEL_1)
696 THREAD_TIMER_ON (master, circuit->t_send_psnp[0], send_l1_psnp, circuit,
697 isis_jitter (circuit->psnp_interval[0], PSNP_JITTER));
699 if (circuit->is_type & IS_LEVEL_2)
700 THREAD_TIMER_ON (master, circuit->t_send_psnp[1], send_l2_psnp, circuit,
701 isis_jitter (circuit->psnp_interval[1], PSNP_JITTER));
703 /* unified init for circuits; ignore warnings below this level */
704 retv = isis_sock_init (circuit);
707 isis_circuit_down (circuit);
711 /* initialize the circuit streams after opening connection */
712 isis_circuit_stream(circuit, &circuit->rcv_stream);
713 isis_circuit_stream(circuit, &circuit->snd_stream);
716 THREAD_READ_ON (master, circuit->t_read, isis_receive, circuit,
719 THREAD_TIMER_ON (master, circuit->t_read, isis_receive, circuit,
723 circuit->lsp_queue = list_new ();
724 circuit->lsp_queue_last_cleared = time (NULL);
730 isis_circuit_down (struct isis_circuit *circuit)
732 if (circuit->state != C_STATE_UP)
735 /* Clear the flags for all the lsps of the circuit. */
736 isis_circuit_update_all_srmflags (circuit, 0);
738 if (circuit->circ_type == CIRCUIT_T_BROADCAST)
740 /* destroy neighbour lists */
741 if (circuit->u.bc.lan_neighs[0])
743 list_delete (circuit->u.bc.lan_neighs[0]);
744 circuit->u.bc.lan_neighs[0] = NULL;
746 if (circuit->u.bc.lan_neighs[1])
748 list_delete (circuit->u.bc.lan_neighs[1]);
749 circuit->u.bc.lan_neighs[1] = NULL;
751 /* destroy adjacency databases */
752 if (circuit->u.bc.adjdb[0])
754 circuit->u.bc.adjdb[0]->del = isis_delete_adj;
755 list_delete (circuit->u.bc.adjdb[0]);
756 circuit->u.bc.adjdb[0] = NULL;
758 if (circuit->u.bc.adjdb[1])
760 circuit->u.bc.adjdb[1]->del = isis_delete_adj;
761 list_delete (circuit->u.bc.adjdb[1]);
762 circuit->u.bc.adjdb[1] = NULL;
764 if (circuit->u.bc.is_dr[0])
766 isis_dr_resign (circuit, 1);
767 circuit->u.bc.is_dr[0] = 0;
769 memset (circuit->u.bc.l1_desig_is, 0, ISIS_SYS_ID_LEN + 1);
770 if (circuit->u.bc.is_dr[1])
772 isis_dr_resign (circuit, 2);
773 circuit->u.bc.is_dr[1] = 0;
775 memset (circuit->u.bc.l2_desig_is, 0, ISIS_SYS_ID_LEN + 1);
776 memset (circuit->u.bc.snpa, 0, ETH_ALEN);
778 THREAD_TIMER_OFF (circuit->u.bc.t_send_lan_hello[0]);
779 THREAD_TIMER_OFF (circuit->u.bc.t_send_lan_hello[1]);
780 THREAD_TIMER_OFF (circuit->u.bc.t_run_dr[0]);
781 THREAD_TIMER_OFF (circuit->u.bc.t_run_dr[1]);
782 THREAD_TIMER_OFF (circuit->u.bc.t_refresh_pseudo_lsp[0]);
783 THREAD_TIMER_OFF (circuit->u.bc.t_refresh_pseudo_lsp[1]);
784 circuit->lsp_regenerate_pending[0] = 0;
785 circuit->lsp_regenerate_pending[1] = 0;
787 else if (circuit->circ_type == CIRCUIT_T_P2P)
789 isis_delete_adj (circuit->u.p2p.neighbor);
790 circuit->u.p2p.neighbor = NULL;
791 THREAD_TIMER_OFF (circuit->u.p2p.t_send_p2p_hello);
794 /* Cancel all active threads */
795 THREAD_TIMER_OFF (circuit->t_send_csnp[0]);
796 THREAD_TIMER_OFF (circuit->t_send_csnp[1]);
797 THREAD_TIMER_OFF (circuit->t_send_psnp[0]);
798 THREAD_TIMER_OFF (circuit->t_send_psnp[1]);
799 THREAD_OFF (circuit->t_read);
801 if (circuit->lsp_queue)
803 circuit->lsp_queue->del = NULL;
804 list_delete (circuit->lsp_queue);
805 circuit->lsp_queue = NULL;
808 /* send one gratuitous hello to spead up convergence */
809 if (circuit->is_type & IS_LEVEL_1)
810 send_hello (circuit, IS_LEVEL_1);
811 if (circuit->is_type & IS_LEVEL_2)
812 send_hello (circuit, IS_LEVEL_2);
814 circuit->upadjcount[0] = 0;
815 circuit->upadjcount[1] = 0;
817 /* close the socket */
824 if (circuit->rcv_stream != NULL)
826 stream_free (circuit->rcv_stream);
827 circuit->rcv_stream = NULL;
830 if (circuit->snd_stream != NULL)
832 stream_free (circuit->snd_stream);
833 circuit->snd_stream = NULL;
836 thread_cancel_event (master, circuit);
842 circuit_update_nlpids (struct isis_circuit *circuit)
844 circuit->nlpids.count = 0;
846 if (circuit->ip_router)
848 circuit->nlpids.nlpids[0] = NLPID_IP;
849 circuit->nlpids.count++;
852 if (circuit->ipv6_router)
854 circuit->nlpids.nlpids[circuit->nlpids.count] = NLPID_IPV6;
855 circuit->nlpids.count++;
857 #endif /* HAVE_IPV6 */
862 isis_circuit_print_vty (struct isis_circuit *circuit, struct vty *vty,
865 if (detail == ISIS_UI_LEVEL_BRIEF)
867 vty_out (vty, " %-12s", circuit->interface->name);
868 vty_out (vty, "0x%-7x", circuit->circuit_id);
869 vty_out (vty, "%-9s", circuit_state2string (circuit->state));
870 vty_out (vty, "%-9s", circuit_type2string (circuit->circ_type));
871 vty_out (vty, "%-9s", circuit_t2string (circuit->is_type));
872 vty_out (vty, "%s", VTY_NEWLINE);
875 if (detail == ISIS_UI_LEVEL_DETAIL)
877 struct listnode *node;
878 struct prefix *ip_addr;
881 vty_out (vty, " Interface: %s", circuit->interface->name);
882 vty_out (vty, ", State: %s", circuit_state2string (circuit->state));
883 if (circuit->is_passive)
884 vty_out (vty, ", Passive");
886 vty_out (vty, ", Active");
887 vty_out (vty, ", Circuit Id: 0x%x", circuit->circuit_id);
888 vty_out (vty, "%s", VTY_NEWLINE);
889 vty_out (vty, " Type: %s", circuit_type2string (circuit->circ_type));
890 vty_out (vty, ", Level: %s", circuit_t2string (circuit->is_type));
891 if (circuit->circ_type == CIRCUIT_T_BROADCAST)
892 vty_out (vty, ", SNPA: %-10s", snpa_print (circuit->u.bc.snpa));
893 vty_out (vty, "%s", VTY_NEWLINE);
894 if (circuit->is_type & IS_LEVEL_1)
896 vty_out (vty, " Level-1 Information:%s", VTY_NEWLINE);
897 if (circuit->area->newmetric)
898 vty_out (vty, " Metric: %d", circuit->te_metric[0]);
900 vty_out (vty, " Metric: %d",
902 if (!circuit->is_passive)
904 vty_out (vty, ", Active neighbors: %u%s",
905 circuit->upadjcount[0], VTY_NEWLINE);
906 vty_out (vty, " Hello interval: %u, "
907 "Holddown count: %u %s%s",
908 circuit->hello_interval[0],
909 circuit->hello_multiplier[0],
910 (circuit->pad_hellos ? "(pad)" : "(no-pad)"),
912 vty_out (vty, " CNSP interval: %u, "
913 "PSNP interval: %u%s",
914 circuit->csnp_interval[0],
915 circuit->psnp_interval[0], VTY_NEWLINE);
916 if (circuit->circ_type == CIRCUIT_T_BROADCAST)
917 vty_out (vty, " LAN Priority: %u, %s%s",
918 circuit->priority[0],
919 (circuit->u.bc.is_dr[0] ? \
920 "is DIS" : "is not DIS"), VTY_NEWLINE);
924 vty_out (vty, "%s", VTY_NEWLINE);
927 if (circuit->is_type & IS_LEVEL_2)
929 vty_out (vty, " Level-2 Information:%s", VTY_NEWLINE);
930 if (circuit->area->newmetric)
931 vty_out (vty, " Metric: %d", circuit->te_metric[1]);
933 vty_out (vty, " Metric: %d",
935 if (!circuit->is_passive)
937 vty_out (vty, ", Active neighbors: %u%s",
938 circuit->upadjcount[1], VTY_NEWLINE);
939 vty_out (vty, " Hello interval: %u, "
940 "Holddown count: %u %s%s",
941 circuit->hello_interval[1],
942 circuit->hello_multiplier[1],
943 (circuit->pad_hellos ? "(pad)" : "(no-pad)"),
945 vty_out (vty, " CNSP interval: %u, "
946 "PSNP interval: %u%s",
947 circuit->csnp_interval[1],
948 circuit->psnp_interval[1], VTY_NEWLINE);
949 if (circuit->circ_type == CIRCUIT_T_BROADCAST)
950 vty_out (vty, " LAN Priority: %u, %s%s",
951 circuit->priority[1],
952 (circuit->u.bc.is_dr[1] ? \
953 "is DIS" : "is not DIS"), VTY_NEWLINE);
957 vty_out (vty, "%s", VTY_NEWLINE);
960 if (circuit->ip_addrs && listcount (circuit->ip_addrs) > 0)
962 vty_out (vty, " IP Prefix(es):%s", VTY_NEWLINE);
963 for (ALL_LIST_ELEMENTS_RO (circuit->ip_addrs, node, ip_addr))
965 prefix2str (ip_addr, (char*)buf, BUFSIZ),
966 vty_out (vty, " %s%s", buf, VTY_NEWLINE);
969 if (circuit->ipv6_link && listcount(circuit->ipv6_link) > 0)
971 vty_out(vty, " IPv6 Link-Locals:%s", VTY_NEWLINE);
972 for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_link, node, ip_addr))
974 prefix2str(ip_addr, (char*)buf, BUFSIZ),
975 vty_out(vty, " %s%s", buf, VTY_NEWLINE);
978 if (circuit->ipv6_non_link && listcount(circuit->ipv6_non_link) > 0)
980 vty_out(vty, " IPv6 Prefixes:%s", VTY_NEWLINE);
981 for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_non_link, node, ip_addr))
983 prefix2str(ip_addr, (char*)buf, BUFSIZ),
984 vty_out(vty, " %s%s", buf, VTY_NEWLINE);
988 vty_out (vty, "%s", VTY_NEWLINE);
994 isis_interface_config_write (struct vty *vty)
997 struct listnode *node, *node2;
998 struct interface *ifp;
999 struct isis_area *area;
1000 struct isis_circuit *circuit;
1003 for (ALL_LIST_ELEMENTS_RO (iflist, node, ifp))
1006 vty_out (vty, "interface %s%s", ifp->name, VTY_NEWLINE);
1011 vty_out (vty, " description %s%s", ifp->desc, VTY_NEWLINE);
1015 for (ALL_LIST_ELEMENTS_RO (isis->area_list, node2, area))
1017 circuit = circuit_lookup_by_ifp (ifp, area->circuit_list);
1018 if (circuit == NULL)
1020 if (circuit->ip_router)
1022 vty_out (vty, " ip router isis %s%s", area->area_tag,
1026 if (circuit->is_passive)
1028 vty_out (vty, " isis passive%s", VTY_NEWLINE);
1031 if (circuit->circ_type_config == CIRCUIT_T_P2P)
1033 vty_out (vty, " isis network point-to-point%s", VTY_NEWLINE);
1037 if (circuit->ipv6_router)
1039 vty_out (vty, " ipv6 router isis %s%s", area->area_tag,
1043 #endif /* HAVE_IPV6 */
1045 /* ISIS - circuit type */
1046 if (circuit->is_type == IS_LEVEL_1)
1048 vty_out (vty, " isis circuit-type level-1%s", VTY_NEWLINE);
1053 if (circuit->is_type == IS_LEVEL_2)
1055 vty_out (vty, " isis circuit-type level-2-only%s",
1061 /* ISIS - CSNP interval */
1062 if (circuit->csnp_interval[0] == circuit->csnp_interval[1])
1064 if (circuit->csnp_interval[0] != DEFAULT_CSNP_INTERVAL)
1066 vty_out (vty, " isis csnp-interval %d%s",
1067 circuit->csnp_interval[0], VTY_NEWLINE);
1073 for (i = 0; i < 2; i++)
1075 if (circuit->csnp_interval[i] != DEFAULT_CSNP_INTERVAL)
1077 vty_out (vty, " isis csnp-interval %d level-%d%s",
1078 circuit->csnp_interval[i], i + 1, VTY_NEWLINE);
1084 /* ISIS - PSNP interval */
1085 if (circuit->psnp_interval[0] == circuit->psnp_interval[1])
1087 if (circuit->psnp_interval[0] != DEFAULT_PSNP_INTERVAL)
1089 vty_out (vty, " isis psnp-interval %d%s",
1090 circuit->psnp_interval[0], VTY_NEWLINE);
1096 for (i = 0; i < 2; i++)
1098 if (circuit->psnp_interval[i] != DEFAULT_PSNP_INTERVAL)
1100 vty_out (vty, " isis psnp-interval %d level-%d%s",
1101 circuit->psnp_interval[i], i + 1, VTY_NEWLINE);
1107 /* ISIS - Hello padding - Defaults to true so only display if false */
1108 if (circuit->pad_hellos == 0)
1110 vty_out (vty, " no isis hello padding%s", VTY_NEWLINE);
1114 /* ISIS - Hello interval */
1115 if (circuit->hello_interval[0] == circuit->hello_interval[1])
1117 if (circuit->hello_interval[0] != DEFAULT_HELLO_INTERVAL)
1119 vty_out (vty, " isis hello-interval %d%s",
1120 circuit->hello_interval[0], VTY_NEWLINE);
1126 for (i = 0; i < 2; i++)
1128 if (circuit->hello_interval[i] != DEFAULT_HELLO_INTERVAL)
1130 vty_out (vty, " isis hello-interval %d level-%d%s",
1131 circuit->hello_interval[i], i + 1, VTY_NEWLINE);
1137 /* ISIS - Hello Multiplier */
1138 if (circuit->hello_multiplier[0] == circuit->hello_multiplier[1])
1140 if (circuit->hello_multiplier[0] != DEFAULT_HELLO_MULTIPLIER)
1142 vty_out (vty, " isis hello-multiplier %d%s",
1143 circuit->hello_multiplier[0], VTY_NEWLINE);
1149 for (i = 0; i < 2; i++)
1151 if (circuit->hello_multiplier[i] != DEFAULT_HELLO_MULTIPLIER)
1153 vty_out (vty, " isis hello-multiplier %d level-%d%s",
1154 circuit->hello_multiplier[i], i + 1,
1161 /* ISIS - Priority */
1162 if (circuit->priority[0] == circuit->priority[1])
1164 if (circuit->priority[0] != DEFAULT_PRIORITY)
1166 vty_out (vty, " isis priority %d%s",
1167 circuit->priority[0], VTY_NEWLINE);
1173 for (i = 0; i < 2; i++)
1175 if (circuit->priority[i] != DEFAULT_PRIORITY)
1177 vty_out (vty, " isis priority %d level-%d%s",
1178 circuit->priority[i], i + 1, VTY_NEWLINE);
1185 if (circuit->te_metric[0] == circuit->te_metric[1])
1187 if (circuit->te_metric[0] != DEFAULT_CIRCUIT_METRIC)
1189 vty_out (vty, " isis metric %d%s", circuit->te_metric[0],
1196 for (i = 0; i < 2; i++)
1198 if (circuit->te_metric[i] != DEFAULT_CIRCUIT_METRIC)
1200 vty_out (vty, " isis metric %d level-%d%s",
1201 circuit->te_metric[i], i + 1, VTY_NEWLINE);
1206 if (circuit->passwd.type == ISIS_PASSWD_TYPE_HMAC_MD5)
1208 vty_out (vty, " isis password md5 %s%s", circuit->passwd.passwd,
1212 else if (circuit->passwd.type == ISIS_PASSWD_TYPE_CLEARTXT)
1214 vty_out (vty, " isis password clear %s%s", circuit->passwd.passwd,
1219 vty_out (vty, "!%s", VTY_NEWLINE);
1225 struct isis_circuit *
1226 isis_circuit_create (struct isis_area *area, struct interface *ifp)
1228 struct isis_circuit *circuit = circuit_scan_by_ifp (ifp);
1229 if (circuit && circuit->area)
1231 circuit = isis_csm_state_change (ISIS_ENABLE, circuit, area);
1232 if (circuit->state != C_STATE_CONF && circuit->state != C_STATE_UP)
1234 isis_circuit_if_bind (circuit, ifp);
1239 isis_circuit_af_set (struct isis_circuit *circuit, bool ip_router, bool ipv6_router)
1241 struct isis_area *area = circuit->area;
1242 bool change = circuit->ip_router != ip_router || circuit->ipv6_router != ipv6_router;
1243 bool was_enabled = !!circuit->area;
1245 area->ip_circuits += ip_router - circuit->ip_router;
1246 area->ipv6_circuits += ipv6_router - circuit->ipv6_router;
1247 circuit->ip_router = ip_router;
1248 circuit->ipv6_router = ipv6_router;
1253 circuit_update_nlpids (circuit);
1255 if (!ip_router && !ipv6_router)
1256 isis_csm_state_change (ISIS_DISABLE, circuit, area);
1257 else if (!was_enabled)
1258 isis_csm_state_change (ISIS_ENABLE, circuit, area);
1260 lsp_regenerate_schedule(circuit->area, circuit->is_type, 0);
1264 isis_circuit_passive_set (struct isis_circuit *circuit, bool passive)
1266 if (circuit->is_passive == passive)
1269 if (if_is_loopback (circuit->interface) && !passive)
1272 if (circuit->state != C_STATE_UP)
1274 circuit->is_passive = passive;
1278 struct isis_area *area = circuit->area;
1279 isis_csm_state_change (ISIS_DISABLE, circuit, area);
1280 circuit->is_passive = passive;
1281 isis_csm_state_change (ISIS_ENABLE, circuit, area);
1288 isis_circuit_metric_set (struct isis_circuit *circuit, int level, int metric)
1290 assert (level == IS_LEVEL_1 || level == IS_LEVEL_2);
1291 if (metric > MAX_WIDE_LINK_METRIC)
1293 if (circuit->area && circuit->area->oldmetric
1294 && metric > MAX_NARROW_LINK_METRIC)
1297 circuit->te_metric[level - 1] = metric;
1298 circuit->metric[level - 1] = metric;
1301 lsp_regenerate_schedule (circuit->area, level, 0);
1306 isis_circuit_passwd_unset (struct isis_circuit *circuit)
1308 memset(&circuit->passwd, 0, sizeof(circuit->passwd));
1313 isis_circuit_passwd_set (struct isis_circuit *circuit, u_char passwd_type, const char *passwd)
1320 len = strlen(passwd);
1324 circuit->passwd.len = len;
1325 strncpy((char *)circuit->passwd.passwd, passwd, 255);
1326 circuit->passwd.type = passwd_type;
1331 isis_circuit_passwd_cleartext_set (struct isis_circuit *circuit, const char *passwd)
1333 return isis_circuit_passwd_set (circuit, ISIS_PASSWD_TYPE_CLEARTXT, passwd);
1337 isis_circuit_passwd_hmac_md5_set (struct isis_circuit *circuit, const char *passwd)
1339 return isis_circuit_passwd_set (circuit, ISIS_PASSWD_TYPE_HMAC_MD5, passwd);
1341 struct cmd_node interface_node = {
1348 isis_circuit_circ_type_set(struct isis_circuit *circuit, int circ_type)
1350 /* Changing the network type to/of loopback or unknown interfaces
1351 * is not supported. */
1352 if (circ_type == CIRCUIT_T_UNKNOWN
1353 || circ_type == CIRCUIT_T_LOOPBACK
1354 || circuit->circ_type == CIRCUIT_T_LOOPBACK)
1356 if (circuit->circ_type != circ_type)
1362 if (circuit->circ_type == circ_type)
1365 if (circuit->state != C_STATE_UP)
1367 circuit->circ_type = circ_type;
1368 circuit->circ_type_config = circ_type;
1372 struct isis_area *area = circuit->area;
1373 if (circ_type == CIRCUIT_T_BROADCAST
1374 && !if_is_broadcast(circuit->interface))
1377 isis_csm_state_change(ISIS_DISABLE, circuit, area);
1378 circuit->circ_type = circ_type;
1379 circuit->circ_type_config = circ_type;
1380 isis_csm_state_change(ISIS_ENABLE, circuit, area);
1386 isis_if_new_hook (struct interface *ifp)
1392 isis_if_delete_hook (struct interface *ifp)
1394 struct isis_circuit *circuit;
1395 /* Clean up the circuit data */
1396 if (ifp && ifp->info)
1398 circuit = ifp->info;
1399 isis_csm_state_change (IF_DOWN_FROM_Z, circuit, circuit->area);
1400 isis_csm_state_change (ISIS_DISABLE, circuit, circuit->area);
1407 isis_circuit_init ()
1409 /* Initialize Zebra interface data structure */
1410 if_add_hook (IF_NEW_HOOK, isis_if_new_hook);
1411 if_add_hook (IF_DELETE_HOOK, isis_if_delete_hook);
1413 /* Install interface node */
1414 install_node (&interface_node, isis_interface_config_write);
1415 install_element (CONFIG_NODE, &interface_cmd);
1416 install_element (CONFIG_NODE, &no_interface_cmd);
1418 install_default (INTERFACE_NODE);
1419 install_element (INTERFACE_NODE, &interface_desc_cmd);
1420 install_element (INTERFACE_NODE, &no_interface_desc_cmd);