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eb5d44eb | 1 | /* |
2 | * IS-IS Rout(e)ing protocol - isis_circuit.h | |
3 | * | |
4 | * Copyright (C) 2001,2002 Sampo Saaristo | |
d62a17ae | 5 | * Tampere University of Technology |
eb5d44eb | 6 | * Institute of Communications Engineering |
7 | * | |
d62a17ae | 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) | |
eb5d44eb | 11 | * any later version. |
12 | * | |
d62a17ae | 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 | |
eb5d44eb | 16 | * more details. |
896014f4 DL |
17 | * |
18 | * You should have received a copy of the GNU General Public License along | |
19 | * with this program; see the file COPYING; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
eb5d44eb | 21 | */ |
eb5d44eb | 22 | #include <zebra.h> |
37da8c01 | 23 | #ifdef GNU_LINUX |
eb5d44eb | 24 | #include <net/ethernet.h> |
37da8c01 | 25 | #else |
26 | #include <netinet/if_ether.h> | |
27 | #endif | |
eb5d44eb | 28 | |
29 | #include "log.h" | |
30 | #include "memory.h" | |
b2d7c082 | 31 | #include "vrf.h" |
eb5d44eb | 32 | #include "if.h" |
33 | #include "linklist.h" | |
34 | #include "command.h" | |
35 | #include "thread.h" | |
f8c06e2c | 36 | #include "vty.h" |
eb5d44eb | 37 | #include "hash.h" |
38 | #include "prefix.h" | |
39 | #include "stream.h" | |
676a4ea3 | 40 | #include "qobj.h" |
eb5d44eb | 41 | |
42 | #include "isisd/dict.h" | |
eb5d44eb | 43 | #include "isisd/isis_constants.h" |
44 | #include "isisd/isis_common.h" | |
3f045a08 | 45 | #include "isisd/isis_flags.h" |
eb5d44eb | 46 | #include "isisd/isis_circuit.h" |
eb5d44eb | 47 | #include "isisd/isis_lsp.h" |
58e16237 | 48 | #include "isisd/isis_lsp_hash.h" |
eb5d44eb | 49 | #include "isisd/isis_pdu.h" |
50 | #include "isisd/isis_network.h" | |
51 | #include "isisd/isis_misc.h" | |
52 | #include "isisd/isis_constants.h" | |
53 | #include "isisd/isis_adjacency.h" | |
54 | #include "isisd/isis_dr.h" | |
eb5d44eb | 55 | #include "isisd/isisd.h" |
56 | #include "isisd/isis_csm.h" | |
57 | #include "isisd/isis_events.h" | |
f8c06e2c | 58 | #include "isisd/isis_te.h" |
064f4896 | 59 | #include "isisd/isis_mt.h" |
eb5d44eb | 60 | |
676a4ea3 DL |
61 | DEFINE_QOBJ_TYPE(isis_circuit) |
62 | ||
41b36e90 PJ |
63 | /* |
64 | * Prototypes. | |
65 | */ | |
41b36e90 PJ |
66 | int isis_interface_config_write(struct vty *); |
67 | int isis_if_new_hook(struct interface *); | |
68 | int isis_if_delete_hook(struct interface *); | |
69 | ||
d62a17ae | 70 | struct isis_circuit *isis_circuit_new() |
eb5d44eb | 71 | { |
d62a17ae | 72 | struct isis_circuit *circuit; |
73 | int i; | |
74 | ||
75 | circuit = XCALLOC(MTYPE_ISIS_CIRCUIT, sizeof(struct isis_circuit)); | |
76 | if (circuit == NULL) { | |
77 | zlog_err("Can't malloc isis circuit"); | |
78 | return NULL; | |
79 | } | |
80 | ||
81 | /* | |
82 | * Default values | |
83 | */ | |
84 | circuit->is_type = IS_LEVEL_1_AND_2; | |
85 | circuit->flags = 0; | |
86 | circuit->pad_hellos = 1; | |
87 | for (i = 0; i < 2; i++) { | |
88 | circuit->hello_interval[i] = DEFAULT_HELLO_INTERVAL; | |
89 | circuit->hello_multiplier[i] = DEFAULT_HELLO_MULTIPLIER; | |
90 | circuit->csnp_interval[i] = DEFAULT_CSNP_INTERVAL; | |
91 | circuit->psnp_interval[i] = DEFAULT_PSNP_INTERVAL; | |
92 | circuit->priority[i] = DEFAULT_PRIORITY; | |
93 | circuit->metric[i] = DEFAULT_CIRCUIT_METRIC; | |
94 | circuit->te_metric[i] = DEFAULT_CIRCUIT_METRIC; | |
95 | } | |
96 | ||
97 | circuit->mtc = mpls_te_circuit_new(); | |
98 | ||
99 | circuit_mt_init(circuit); | |
100 | ||
101 | QOBJ_REG(circuit, isis_circuit); | |
102 | ||
103 | return circuit; | |
eb5d44eb | 104 | } |
105 | ||
d62a17ae | 106 | void isis_circuit_del(struct isis_circuit *circuit) |
3f045a08 | 107 | { |
d62a17ae | 108 | if (!circuit) |
109 | return; | |
3f045a08 | 110 | |
d62a17ae | 111 | QOBJ_UNREG(circuit); |
676a4ea3 | 112 | |
d62a17ae | 113 | isis_circuit_if_unbind(circuit, circuit->interface); |
3f045a08 | 114 | |
d62a17ae | 115 | circuit_mt_finish(circuit); |
064f4896 | 116 | |
d62a17ae | 117 | /* and lastly the circuit itself */ |
118 | XFREE(MTYPE_ISIS_CIRCUIT, circuit); | |
3f045a08 | 119 | |
d62a17ae | 120 | return; |
3f045a08 JB |
121 | } |
122 | ||
d62a17ae | 123 | void isis_circuit_configure(struct isis_circuit *circuit, |
124 | struct isis_area *area) | |
eb5d44eb | 125 | { |
d62a17ae | 126 | assert(area); |
127 | circuit->area = area; | |
128 | ||
129 | /* | |
130 | * Whenever the is-type of an area is changed, the is-type of each | |
131 | * circuit | |
132 | * in that area is updated to a non-empty subset of the area is-type. | |
133 | * Inversely, when configuring a new circuit, this property should be | |
134 | * ensured as well. | |
135 | */ | |
136 | if (area->is_type != IS_LEVEL_1_AND_2) | |
137 | circuit->is_type = area->is_type; | |
138 | ||
139 | /* | |
140 | * Add the circuit into area | |
141 | */ | |
142 | listnode_add(area->circuit_list, circuit); | |
143 | ||
144 | circuit->idx = flags_get_index(&area->flags); | |
145 | ||
146 | return; | |
eb5d44eb | 147 | } |
148 | ||
d62a17ae | 149 | void isis_circuit_deconfigure(struct isis_circuit *circuit, |
150 | struct isis_area *area) | |
eb5d44eb | 151 | { |
d62a17ae | 152 | /* Free the index of SRM and SSN flags */ |
153 | flags_free_index(&area->flags, circuit->idx); | |
154 | circuit->idx = 0; | |
155 | /* Remove circuit from area */ | |
156 | assert(circuit->area == area); | |
157 | listnode_delete(area->circuit_list, circuit); | |
158 | circuit->area = NULL; | |
159 | ||
160 | return; | |
eb5d44eb | 161 | } |
162 | ||
d62a17ae | 163 | struct isis_circuit *circuit_lookup_by_ifp(struct interface *ifp, |
164 | struct list *list) | |
eb5d44eb | 165 | { |
d62a17ae | 166 | struct isis_circuit *circuit = NULL; |
167 | struct listnode *node; | |
f390d2c7 | 168 | |
d62a17ae | 169 | if (!list) |
170 | return NULL; | |
f390d2c7 | 171 | |
d62a17ae | 172 | for (ALL_LIST_ELEMENTS_RO(list, node, circuit)) |
173 | if (circuit->interface == ifp) { | |
174 | assert(ifp->info == circuit); | |
175 | return circuit; | |
176 | } | |
3f045a08 | 177 | |
d62a17ae | 178 | return NULL; |
eb5d44eb | 179 | } |
180 | ||
d62a17ae | 181 | struct isis_circuit *circuit_scan_by_ifp(struct interface *ifp) |
eb5d44eb | 182 | { |
d62a17ae | 183 | struct isis_area *area; |
184 | struct listnode *node; | |
185 | struct isis_circuit *circuit; | |
186 | ||
187 | if (ifp->info) | |
188 | return (struct isis_circuit *)ifp->info; | |
189 | ||
190 | if (isis->area_list) { | |
191 | for (ALL_LIST_ELEMENTS_RO(isis->area_list, node, area)) { | |
192 | circuit = | |
193 | circuit_lookup_by_ifp(ifp, area->circuit_list); | |
194 | if (circuit) | |
195 | return circuit; | |
196 | } | |
197 | } | |
198 | return circuit_lookup_by_ifp(ifp, isis->init_circ_list); | |
eb5d44eb | 199 | } |
200 | ||
d62a17ae | 201 | void isis_circuit_add_addr(struct isis_circuit *circuit, |
202 | struct connected *connected) | |
eb5d44eb | 203 | { |
d62a17ae | 204 | struct listnode *node; |
205 | struct prefix_ipv4 *ipv4; | |
4690c7d7 | 206 | #if defined(EXTREME_DEBUG) |
d62a17ae | 207 | char buf[PREFIX2STR_BUFFER]; |
4690c7d7 | 208 | #endif |
d62a17ae | 209 | struct prefix_ipv6 *ipv6; |
f891f443 | 210 | |
d62a17ae | 211 | if (connected->address->family == AF_INET) { |
212 | u_int32_t addr = connected->address->u.prefix4.s_addr; | |
213 | addr = ntohl(addr); | |
214 | if (IPV4_NET0(addr) || IPV4_NET127(addr) || IN_CLASSD(addr) | |
215 | || IPV4_LINKLOCAL(addr)) | |
216 | return; | |
3f045a08 | 217 | |
d62a17ae | 218 | for (ALL_LIST_ELEMENTS_RO(circuit->ip_addrs, node, ipv4)) |
219 | if (prefix_same((struct prefix *)ipv4, | |
220 | connected->address)) | |
221 | return; | |
3f045a08 | 222 | |
d62a17ae | 223 | ipv4 = prefix_ipv4_new(); |
224 | ipv4->prefixlen = connected->address->prefixlen; | |
225 | ipv4->prefix = connected->address->u.prefix4; | |
226 | listnode_add(circuit->ip_addrs, ipv4); | |
f8c06e2c | 227 | |
d62a17ae | 228 | /* Update MPLS TE Local IP address parameter */ |
229 | set_circuitparams_local_ipaddr(circuit->mtc, ipv4->prefix); | |
f8c06e2c | 230 | |
d62a17ae | 231 | if (circuit->area) |
232 | lsp_regenerate_schedule(circuit->area, circuit->is_type, | |
233 | 0); | |
f891f443 | 234 | |
eb5d44eb | 235 | #ifdef EXTREME_DEBUG |
d62a17ae | 236 | prefix2str(connected->address, buf, sizeof(buf)); |
237 | zlog_debug("Added IP address %s to circuit %d", buf, | |
238 | circuit->circuit_id); | |
f390d2c7 | 239 | #endif /* EXTREME_DEBUG */ |
d62a17ae | 240 | } |
241 | if (connected->address->family == AF_INET6) { | |
242 | if (IN6_IS_ADDR_LOOPBACK(&connected->address->u.prefix6)) | |
243 | return; | |
244 | ||
245 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_link, node, ipv6)) | |
246 | if (prefix_same((struct prefix *)ipv6, | |
247 | connected->address)) | |
248 | return; | |
249 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_non_link, node, ipv6)) | |
250 | if (prefix_same((struct prefix *)ipv6, | |
251 | connected->address)) | |
252 | return; | |
253 | ||
254 | ipv6 = prefix_ipv6_new(); | |
255 | ipv6->prefixlen = connected->address->prefixlen; | |
256 | ipv6->prefix = connected->address->u.prefix6; | |
257 | ||
258 | if (IN6_IS_ADDR_LINKLOCAL(&ipv6->prefix)) | |
259 | listnode_add(circuit->ipv6_link, ipv6); | |
260 | else | |
261 | listnode_add(circuit->ipv6_non_link, ipv6); | |
262 | if (circuit->area) | |
263 | lsp_regenerate_schedule(circuit->area, circuit->is_type, | |
264 | 0); | |
f891f443 | 265 | |
eb5d44eb | 266 | #ifdef EXTREME_DEBUG |
d62a17ae | 267 | prefix2str(connected->address, buf, sizeof(buf)); |
268 | zlog_debug("Added IPv6 address %s to circuit %d", buf, | |
269 | circuit->circuit_id); | |
f390d2c7 | 270 | #endif /* EXTREME_DEBUG */ |
d62a17ae | 271 | } |
272 | return; | |
eb5d44eb | 273 | } |
274 | ||
d62a17ae | 275 | void isis_circuit_del_addr(struct isis_circuit *circuit, |
276 | struct connected *connected) | |
eb5d44eb | 277 | { |
d62a17ae | 278 | struct prefix_ipv4 *ipv4, *ip = NULL; |
279 | struct listnode *node; | |
280 | char buf[PREFIX2STR_BUFFER]; | |
281 | struct prefix_ipv6 *ipv6, *ip6 = NULL; | |
282 | int found = 0; | |
283 | ||
284 | if (connected->address->family == AF_INET) { | |
285 | ipv4 = prefix_ipv4_new(); | |
286 | ipv4->prefixlen = connected->address->prefixlen; | |
287 | ipv4->prefix = connected->address->u.prefix4; | |
288 | ||
289 | for (ALL_LIST_ELEMENTS_RO(circuit->ip_addrs, node, ip)) | |
290 | if (prefix_same((struct prefix *)ip, | |
291 | (struct prefix *)ipv4)) | |
292 | break; | |
293 | ||
294 | if (ip) { | |
295 | listnode_delete(circuit->ip_addrs, ip); | |
296 | if (circuit->area) | |
297 | lsp_regenerate_schedule(circuit->area, | |
298 | circuit->is_type, 0); | |
299 | } else { | |
300 | prefix2str(connected->address, buf, sizeof(buf)); | |
301 | zlog_warn( | |
302 | "Nonexistant ip address %s removal attempt from \ | |
303 | circuit %d", | |
304 | buf, circuit->circuit_id); | |
305 | zlog_warn("Current ip addresses on %s:", | |
306 | circuit->interface->name); | |
307 | for (ALL_LIST_ELEMENTS_RO(circuit->ip_addrs, node, | |
308 | ip)) { | |
309 | prefix2str(ip, buf, sizeof(buf)); | |
310 | zlog_warn(" %s", buf); | |
311 | } | |
312 | zlog_warn("End of addresses"); | |
313 | } | |
314 | ||
315 | prefix_ipv4_free(ipv4); | |
f891f443 | 316 | } |
d62a17ae | 317 | if (connected->address->family == AF_INET6) { |
318 | ipv6 = prefix_ipv6_new(); | |
319 | ipv6->prefixlen = connected->address->prefixlen; | |
320 | ipv6->prefix = connected->address->u.prefix6; | |
321 | ||
322 | if (IN6_IS_ADDR_LINKLOCAL(&ipv6->prefix)) { | |
323 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_link, node, | |
324 | ip6)) { | |
325 | if (prefix_same((struct prefix *)ip6, | |
326 | (struct prefix *)ipv6)) | |
327 | break; | |
328 | } | |
329 | if (ip6) { | |
330 | listnode_delete(circuit->ipv6_link, ip6); | |
331 | found = 1; | |
332 | } | |
333 | } else { | |
334 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_non_link, node, | |
335 | ip6)) { | |
336 | if (prefix_same((struct prefix *)ip6, | |
337 | (struct prefix *)ipv6)) | |
338 | break; | |
339 | } | |
340 | if (ip6) { | |
341 | listnode_delete(circuit->ipv6_non_link, ip6); | |
342 | found = 1; | |
343 | } | |
344 | } | |
345 | ||
346 | if (!found) { | |
347 | prefix2str(connected->address, buf, sizeof(buf)); | |
348 | zlog_warn( | |
349 | "Nonexitant ip address %s removal attempt from \ | |
350 | circuit %d", | |
351 | buf, circuit->circuit_id); | |
352 | zlog_warn("Current ip addresses on %s:", | |
353 | circuit->interface->name); | |
354 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_link, node, | |
355 | ip6)) { | |
356 | prefix2str((struct prefix *)ip6, (char *)buf, | |
357 | BUFSIZ); | |
358 | zlog_warn(" %s", buf); | |
359 | } | |
360 | zlog_warn(" -----"); | |
361 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_non_link, node, | |
362 | ip6)) { | |
363 | prefix2str((struct prefix *)ip6, (char *)buf, | |
364 | BUFSIZ); | |
365 | zlog_warn(" %s", buf); | |
366 | } | |
367 | zlog_warn("End of addresses"); | |
368 | } else if (circuit->area) | |
369 | lsp_regenerate_schedule(circuit->area, circuit->is_type, | |
370 | 0); | |
371 | ||
372 | prefix_ipv6_free(ipv6); | |
f891f443 | 373 | } |
d62a17ae | 374 | return; |
375 | } | |
e8aca32f | 376 | |
068c8222 | 377 | static uint8_t isis_circuit_id_gen(struct interface *ifp) |
d62a17ae | 378 | { |
068c8222 CF |
379 | /* Circuit ids MUST be unique for any broadcast circuits. Otherwise, |
380 | * Pseudo-Node LSPs cannot be generated correctly. | |
381 | * | |
382 | * Currently, allocate one circuit ID for any circuit, limiting the total | |
383 | * numer of circuits IS-IS can run on to 255. | |
384 | * | |
385 | * We should revisit this when implementing 3-way adjacencies for p2p, since | |
386 | * we then have extended interface IDs available. | |
387 | */ | |
388 | uint8_t id = ifp->ifindex; | |
d62a17ae | 389 | unsigned int i; |
d62a17ae | 390 | |
068c8222 CF |
391 | for (i = 0; i < 256; i++) { |
392 | if (id && !_ISIS_CHECK_FLAG(isis->circuit_ids_used, id)) | |
d62a17ae | 393 | break; |
068c8222 | 394 | id++; |
f891f443 | 395 | } |
396 | ||
068c8222 CF |
397 | if (i == 256) { |
398 | zlog_warn("Could not allocate a circuit id for '%s'", ifp->name); | |
399 | return 0; | |
f891f443 | 400 | } |
e8aca32f | 401 | |
d62a17ae | 402 | return id; |
3f045a08 JB |
403 | } |
404 | ||
d62a17ae | 405 | void isis_circuit_if_add(struct isis_circuit *circuit, struct interface *ifp) |
eb5d44eb | 406 | { |
d62a17ae | 407 | struct listnode *node, *nnode; |
408 | struct connected *conn; | |
409 | ||
410 | circuit->circuit_id = isis_circuit_id_gen(ifp); | |
068c8222 | 411 | _ISIS_SET_FLAG(isis->circuit_ids_used, circuit->circuit_id); |
d62a17ae | 412 | |
413 | isis_circuit_if_bind(circuit, ifp); | |
414 | /* isis_circuit_update_addrs (circuit, ifp); */ | |
415 | ||
416 | if (if_is_broadcast(ifp)) { | |
417 | if (circuit->circ_type_config == CIRCUIT_T_P2P) | |
418 | circuit->circ_type = CIRCUIT_T_P2P; | |
419 | else | |
420 | circuit->circ_type = CIRCUIT_T_BROADCAST; | |
421 | } else if (if_is_pointopoint(ifp)) { | |
422 | circuit->circ_type = CIRCUIT_T_P2P; | |
423 | } else if (if_is_loopback(ifp)) { | |
424 | circuit->circ_type = CIRCUIT_T_LOOPBACK; | |
425 | circuit->is_passive = 1; | |
426 | } else { | |
427 | /* It's normal in case of loopback etc. */ | |
428 | if (isis->debugs & DEBUG_EVENTS) | |
429 | zlog_debug("isis_circuit_if_add: unsupported media"); | |
430 | circuit->circ_type = CIRCUIT_T_UNKNOWN; | |
431 | } | |
432 | ||
433 | circuit->ip_addrs = list_new(); | |
434 | circuit->ipv6_link = list_new(); | |
435 | circuit->ipv6_non_link = list_new(); | |
436 | ||
437 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, conn)) | |
438 | isis_circuit_add_addr(circuit, conn); | |
439 | ||
440 | return; | |
eb5d44eb | 441 | } |
442 | ||
d62a17ae | 443 | void isis_circuit_if_del(struct isis_circuit *circuit, struct interface *ifp) |
eb5d44eb | 444 | { |
d62a17ae | 445 | struct listnode *node, *nnode; |
446 | struct connected *conn; | |
447 | ||
448 | assert(circuit->interface == ifp); | |
449 | ||
450 | /* destroy addresses */ | |
451 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, conn)) | |
452 | isis_circuit_del_addr(circuit, conn); | |
453 | ||
454 | if (circuit->ip_addrs) { | |
455 | assert(listcount(circuit->ip_addrs) == 0); | |
456 | list_delete(circuit->ip_addrs); | |
457 | circuit->ip_addrs = NULL; | |
458 | } | |
459 | ||
460 | if (circuit->ipv6_link) { | |
461 | assert(listcount(circuit->ipv6_link) == 0); | |
462 | list_delete(circuit->ipv6_link); | |
463 | circuit->ipv6_link = NULL; | |
464 | } | |
465 | ||
466 | if (circuit->ipv6_non_link) { | |
467 | assert(listcount(circuit->ipv6_non_link) == 0); | |
468 | list_delete(circuit->ipv6_non_link); | |
469 | circuit->ipv6_non_link = NULL; | |
470 | } | |
471 | ||
472 | circuit->circ_type = CIRCUIT_T_UNKNOWN; | |
068c8222 | 473 | _ISIS_CLEAR_FLAG(isis->circuit_ids_used, circuit->circuit_id); |
d62a17ae | 474 | circuit->circuit_id = 0; |
475 | ||
476 | return; | |
eb5d44eb | 477 | } |
478 | ||
d62a17ae | 479 | void isis_circuit_if_bind(struct isis_circuit *circuit, struct interface *ifp) |
3f045a08 | 480 | { |
d62a17ae | 481 | assert(circuit != NULL); |
482 | assert(ifp != NULL); | |
483 | if (circuit->interface) | |
484 | assert(circuit->interface == ifp); | |
485 | else | |
486 | circuit->interface = ifp; | |
487 | if (ifp->info) | |
488 | assert(ifp->info == circuit); | |
489 | else | |
490 | ifp->info = circuit; | |
491 | isis_link_params_update(circuit, ifp); | |
3f045a08 JB |
492 | } |
493 | ||
d62a17ae | 494 | void isis_circuit_if_unbind(struct isis_circuit *circuit, struct interface *ifp) |
eb5d44eb | 495 | { |
d62a17ae | 496 | assert(circuit != NULL); |
497 | assert(ifp != NULL); | |
498 | assert(circuit->interface == ifp); | |
499 | assert(ifp->info == circuit); | |
500 | circuit->interface = NULL; | |
501 | ifp->info = NULL; | |
3f045a08 | 502 | } |
f390d2c7 | 503 | |
d62a17ae | 504 | static void isis_circuit_update_all_srmflags(struct isis_circuit *circuit, |
505 | int is_set) | |
3f045a08 | 506 | { |
d62a17ae | 507 | struct isis_area *area; |
508 | struct isis_lsp *lsp; | |
509 | dnode_t *dnode, *dnode_next; | |
510 | int level; | |
511 | ||
512 | assert(circuit); | |
513 | area = circuit->area; | |
514 | assert(area); | |
515 | for (level = ISIS_LEVEL1; level <= ISIS_LEVEL2; level++) { | |
516 | if (level & circuit->is_type) { | |
517 | if (area->lspdb[level - 1] | |
518 | && dict_count(area->lspdb[level - 1]) > 0) { | |
519 | for (dnode = dict_first(area->lspdb[level - 1]); | |
520 | dnode != NULL; dnode = dnode_next) { | |
521 | dnode_next = dict_next( | |
522 | area->lspdb[level - 1], dnode); | |
523 | lsp = dnode_get(dnode); | |
524 | if (is_set) { | |
525 | ISIS_SET_FLAG(lsp->SRMflags, | |
526 | circuit); | |
527 | } else { | |
528 | ISIS_CLEAR_FLAG(lsp->SRMflags, | |
529 | circuit); | |
530 | } | |
531 | } | |
532 | } | |
533 | } | |
534 | } | |
eb5d44eb | 535 | } |
536 | ||
d62a17ae | 537 | size_t isis_circuit_pdu_size(struct isis_circuit *circuit) |
b20ccb3a | 538 | { |
d62a17ae | 539 | return ISO_MTU(circuit); |
b20ccb3a CF |
540 | } |
541 | ||
d62a17ae | 542 | void isis_circuit_stream(struct isis_circuit *circuit, struct stream **stream) |
b20ccb3a | 543 | { |
d62a17ae | 544 | size_t stream_size = isis_circuit_pdu_size(circuit); |
545 | ||
546 | if (!*stream) { | |
547 | *stream = stream_new(stream_size); | |
548 | } else { | |
549 | if (STREAM_SIZE(*stream) != stream_size) | |
550 | stream_resize(*stream, stream_size); | |
551 | stream_reset(*stream); | |
552 | } | |
b20ccb3a CF |
553 | } |
554 | ||
d62a17ae | 555 | void isis_circuit_prepare(struct isis_circuit *circuit) |
5904f19f RW |
556 | { |
557 | #ifdef GNU_LINUX | |
d62a17ae | 558 | thread_add_read(master, isis_receive, circuit, circuit->fd, |
559 | &circuit->t_read); | |
5904f19f | 560 | #else |
d62a17ae | 561 | thread_add_timer_msec(master, isis_receive, circuit, |
562 | listcount(circuit->area->circuit_list) * 100, | |
563 | &circuit->t_read); | |
5904f19f RW |
564 | #endif |
565 | } | |
566 | ||
d62a17ae | 567 | int isis_circuit_up(struct isis_circuit *circuit) |
eb5d44eb | 568 | { |
d62a17ae | 569 | int retv; |
570 | ||
571 | /* Set the flags for all the lsps of the circuit. */ | |
572 | isis_circuit_update_all_srmflags(circuit, 1); | |
573 | ||
574 | if (circuit->state == C_STATE_UP) | |
575 | return ISIS_OK; | |
576 | ||
577 | if (circuit->is_passive) | |
578 | return ISIS_OK; | |
579 | ||
580 | if (circuit->area->lsp_mtu > isis_circuit_pdu_size(circuit)) { | |
581 | zlog_err( | |
582 | "Interface MTU %zu on %s is too low to support area lsp mtu %u!", | |
583 | isis_circuit_pdu_size(circuit), | |
584 | circuit->interface->name, circuit->area->lsp_mtu); | |
585 | isis_circuit_update_all_srmflags(circuit, 0); | |
586 | return ISIS_ERROR; | |
587 | } | |
588 | ||
589 | if (circuit->circ_type == CIRCUIT_T_BROADCAST) { | |
590 | /* | |
591 | * Get the Hardware Address | |
592 | */ | |
593 | if (circuit->interface->hw_addr_len != ETH_ALEN) { | |
594 | zlog_warn("unsupported link layer"); | |
595 | } else { | |
596 | memcpy(circuit->u.bc.snpa, circuit->interface->hw_addr, | |
597 | ETH_ALEN); | |
598 | } | |
3f045a08 | 599 | #ifdef EXTREME_DEGUG |
d62a17ae | 600 | zlog_debug("isis_circuit_if_add: if_id %d, isomtu %d snpa %s", |
601 | circuit->interface->ifindex, ISO_MTU(circuit), | |
602 | snpa_print(circuit->u.bc.snpa)); | |
3f045a08 | 603 | #endif /* EXTREME_DEBUG */ |
3f045a08 | 604 | |
d62a17ae | 605 | circuit->u.bc.adjdb[0] = list_new(); |
606 | circuit->u.bc.adjdb[1] = list_new(); | |
607 | ||
608 | /* | |
609 | * ISO 10589 - 8.4.1 Enabling of broadcast circuits | |
610 | */ | |
611 | ||
612 | /* initilizing the hello sending threads | |
613 | * for a broadcast IF | |
614 | */ | |
615 | ||
616 | /* 8.4.1 a) commence sending of IIH PDUs */ | |
617 | ||
618 | if (circuit->is_type & IS_LEVEL_1) { | |
619 | thread_add_event(master, send_lan_l1_hello, circuit, 0, | |
620 | NULL); | |
621 | circuit->u.bc.lan_neighs[0] = list_new(); | |
622 | } | |
623 | ||
624 | if (circuit->is_type & IS_LEVEL_2) { | |
625 | thread_add_event(master, send_lan_l2_hello, circuit, 0, | |
626 | NULL); | |
627 | circuit->u.bc.lan_neighs[1] = list_new(); | |
628 | } | |
629 | ||
630 | /* 8.4.1 b) FIXME: solicit ES - 8.4.6 */ | |
631 | /* 8.4.1 c) FIXME: listen for ESH PDUs */ | |
632 | ||
633 | /* 8.4.1 d) */ | |
634 | /* dr election will commence in... */ | |
635 | if (circuit->is_type & IS_LEVEL_1) | |
636 | thread_add_timer(master, isis_run_dr_l1, circuit, | |
637 | 2 * circuit->hello_interval[0], | |
638 | &circuit->u.bc.t_run_dr[0]); | |
639 | if (circuit->is_type & IS_LEVEL_2) | |
640 | thread_add_timer(master, isis_run_dr_l2, circuit, | |
641 | 2 * circuit->hello_interval[1], | |
642 | &circuit->u.bc.t_run_dr[1]); | |
643 | } else { | |
644 | /* initializing the hello send threads | |
645 | * for a ptp IF | |
646 | */ | |
647 | circuit->u.p2p.neighbor = NULL; | |
648 | thread_add_event(master, send_p2p_hello, circuit, 0, NULL); | |
649 | } | |
650 | ||
651 | /* initializing PSNP timers */ | |
652 | if (circuit->is_type & IS_LEVEL_1) | |
653 | thread_add_timer( | |
654 | master, send_l1_psnp, circuit, | |
655 | isis_jitter(circuit->psnp_interval[0], PSNP_JITTER), | |
656 | &circuit->t_send_psnp[0]); | |
657 | ||
658 | if (circuit->is_type & IS_LEVEL_2) | |
659 | thread_add_timer( | |
660 | master, send_l2_psnp, circuit, | |
661 | isis_jitter(circuit->psnp_interval[1], PSNP_JITTER), | |
662 | &circuit->t_send_psnp[1]); | |
663 | ||
664 | /* unified init for circuits; ignore warnings below this level */ | |
665 | retv = isis_sock_init(circuit); | |
666 | if (retv != ISIS_OK) { | |
667 | isis_circuit_down(circuit); | |
668 | return retv; | |
669 | } | |
670 | ||
671 | /* initialize the circuit streams after opening connection */ | |
672 | isis_circuit_stream(circuit, &circuit->rcv_stream); | |
673 | isis_circuit_stream(circuit, &circuit->snd_stream); | |
674 | ||
675 | isis_circuit_prepare(circuit); | |
676 | ||
677 | circuit->lsp_queue = list_new(); | |
58e16237 | 678 | circuit->lsp_hash = isis_lsp_hash_new(); |
e5973ce5 | 679 | circuit->lsp_queue_last_push = monotime(NULL); |
d62a17ae | 680 | |
681 | return ISIS_OK; | |
eb5d44eb | 682 | } |
683 | ||
d62a17ae | 684 | void isis_circuit_down(struct isis_circuit *circuit) |
eb5d44eb | 685 | { |
d62a17ae | 686 | if (circuit->state != C_STATE_UP) |
687 | return; | |
688 | ||
689 | /* Clear the flags for all the lsps of the circuit. */ | |
690 | isis_circuit_update_all_srmflags(circuit, 0); | |
691 | ||
692 | if (circuit->circ_type == CIRCUIT_T_BROADCAST) { | |
693 | /* destroy neighbour lists */ | |
694 | if (circuit->u.bc.lan_neighs[0]) { | |
695 | list_delete(circuit->u.bc.lan_neighs[0]); | |
696 | circuit->u.bc.lan_neighs[0] = NULL; | |
697 | } | |
698 | if (circuit->u.bc.lan_neighs[1]) { | |
699 | list_delete(circuit->u.bc.lan_neighs[1]); | |
700 | circuit->u.bc.lan_neighs[1] = NULL; | |
701 | } | |
702 | /* destroy adjacency databases */ | |
703 | if (circuit->u.bc.adjdb[0]) { | |
704 | circuit->u.bc.adjdb[0]->del = isis_delete_adj; | |
705 | list_delete(circuit->u.bc.adjdb[0]); | |
706 | circuit->u.bc.adjdb[0] = NULL; | |
707 | } | |
708 | if (circuit->u.bc.adjdb[1]) { | |
709 | circuit->u.bc.adjdb[1]->del = isis_delete_adj; | |
710 | list_delete(circuit->u.bc.adjdb[1]); | |
711 | circuit->u.bc.adjdb[1] = NULL; | |
712 | } | |
713 | if (circuit->u.bc.is_dr[0]) { | |
714 | isis_dr_resign(circuit, 1); | |
715 | circuit->u.bc.is_dr[0] = 0; | |
716 | } | |
717 | memset(circuit->u.bc.l1_desig_is, 0, ISIS_SYS_ID_LEN + 1); | |
718 | if (circuit->u.bc.is_dr[1]) { | |
719 | isis_dr_resign(circuit, 2); | |
720 | circuit->u.bc.is_dr[1] = 0; | |
721 | } | |
722 | memset(circuit->u.bc.l2_desig_is, 0, ISIS_SYS_ID_LEN + 1); | |
723 | memset(circuit->u.bc.snpa, 0, ETH_ALEN); | |
724 | ||
725 | THREAD_TIMER_OFF(circuit->u.bc.t_send_lan_hello[0]); | |
726 | THREAD_TIMER_OFF(circuit->u.bc.t_send_lan_hello[1]); | |
727 | THREAD_TIMER_OFF(circuit->u.bc.t_run_dr[0]); | |
728 | THREAD_TIMER_OFF(circuit->u.bc.t_run_dr[1]); | |
729 | THREAD_TIMER_OFF(circuit->u.bc.t_refresh_pseudo_lsp[0]); | |
730 | THREAD_TIMER_OFF(circuit->u.bc.t_refresh_pseudo_lsp[1]); | |
731 | circuit->lsp_regenerate_pending[0] = 0; | |
732 | circuit->lsp_regenerate_pending[1] = 0; | |
733 | } else if (circuit->circ_type == CIRCUIT_T_P2P) { | |
734 | isis_delete_adj(circuit->u.p2p.neighbor); | |
735 | circuit->u.p2p.neighbor = NULL; | |
736 | THREAD_TIMER_OFF(circuit->u.p2p.t_send_p2p_hello); | |
737 | } | |
738 | ||
739 | /* Cancel all active threads */ | |
740 | THREAD_TIMER_OFF(circuit->t_send_csnp[0]); | |
741 | THREAD_TIMER_OFF(circuit->t_send_csnp[1]); | |
742 | THREAD_TIMER_OFF(circuit->t_send_psnp[0]); | |
743 | THREAD_TIMER_OFF(circuit->t_send_psnp[1]); | |
58e16237 | 744 | THREAD_OFF(circuit->t_send_lsp); |
d62a17ae | 745 | THREAD_OFF(circuit->t_read); |
746 | ||
747 | if (circuit->lsp_queue) { | |
d62a17ae | 748 | list_delete(circuit->lsp_queue); |
749 | circuit->lsp_queue = NULL; | |
750 | } | |
751 | ||
58e16237 CF |
752 | if (circuit->lsp_hash) { |
753 | isis_lsp_hash_free(circuit->lsp_hash); | |
754 | circuit->lsp_hash = NULL; | |
755 | } | |
756 | ||
d62a17ae | 757 | /* send one gratuitous hello to spead up convergence */ |
758 | if (circuit->is_type & IS_LEVEL_1) | |
759 | send_hello(circuit, IS_LEVEL_1); | |
760 | if (circuit->is_type & IS_LEVEL_2) | |
761 | send_hello(circuit, IS_LEVEL_2); | |
762 | ||
763 | circuit->upadjcount[0] = 0; | |
764 | circuit->upadjcount[1] = 0; | |
765 | ||
766 | /* close the socket */ | |
767 | if (circuit->fd) { | |
768 | close(circuit->fd); | |
769 | circuit->fd = 0; | |
770 | } | |
771 | ||
772 | if (circuit->rcv_stream != NULL) { | |
773 | stream_free(circuit->rcv_stream); | |
774 | circuit->rcv_stream = NULL; | |
775 | } | |
776 | ||
777 | if (circuit->snd_stream != NULL) { | |
778 | stream_free(circuit->snd_stream); | |
779 | circuit->snd_stream = NULL; | |
780 | } | |
781 | ||
782 | thread_cancel_event(master, circuit); | |
783 | ||
784 | return; | |
eb5d44eb | 785 | } |
786 | ||
d62a17ae | 787 | void circuit_update_nlpids(struct isis_circuit *circuit) |
eb5d44eb | 788 | { |
d62a17ae | 789 | circuit->nlpids.count = 0; |
790 | ||
791 | if (circuit->ip_router) { | |
792 | circuit->nlpids.nlpids[0] = NLPID_IP; | |
793 | circuit->nlpids.count++; | |
794 | } | |
795 | if (circuit->ipv6_router) { | |
796 | circuit->nlpids.nlpids[circuit->nlpids.count] = NLPID_IPV6; | |
797 | circuit->nlpids.count++; | |
798 | } | |
799 | return; | |
eb5d44eb | 800 | } |
801 | ||
d62a17ae | 802 | void isis_circuit_print_vty(struct isis_circuit *circuit, struct vty *vty, |
803 | char detail) | |
3f045a08 | 804 | { |
d62a17ae | 805 | if (detail == ISIS_UI_LEVEL_BRIEF) { |
806 | vty_out(vty, " %-12s", circuit->interface->name); | |
807 | vty_out(vty, "0x%-7x", circuit->circuit_id); | |
808 | vty_out(vty, "%-9s", circuit_state2string(circuit->state)); | |
809 | vty_out(vty, "%-9s", circuit_type2string(circuit->circ_type)); | |
810 | vty_out(vty, "%-9s", circuit_t2string(circuit->is_type)); | |
811 | vty_out(vty, "\n"); | |
812 | } | |
813 | ||
814 | if (detail == ISIS_UI_LEVEL_DETAIL) { | |
815 | struct listnode *node; | |
816 | struct prefix *ip_addr; | |
817 | char buf[BUFSIZ]; | |
818 | ||
819 | vty_out(vty, " Interface: %s", circuit->interface->name); | |
820 | vty_out(vty, ", State: %s", | |
821 | circuit_state2string(circuit->state)); | |
822 | if (circuit->is_passive) | |
823 | vty_out(vty, ", Passive"); | |
824 | else | |
825 | vty_out(vty, ", Active"); | |
826 | vty_out(vty, ", Circuit Id: 0x%x", circuit->circuit_id); | |
827 | vty_out(vty, "\n"); | |
828 | vty_out(vty, " Type: %s", | |
829 | circuit_type2string(circuit->circ_type)); | |
830 | vty_out(vty, ", Level: %s", circuit_t2string(circuit->is_type)); | |
831 | if (circuit->circ_type == CIRCUIT_T_BROADCAST) | |
832 | vty_out(vty, ", SNPA: %-10s", | |
833 | snpa_print(circuit->u.bc.snpa)); | |
834 | vty_out(vty, "\n"); | |
835 | if (circuit->is_type & IS_LEVEL_1) { | |
836 | vty_out(vty, " Level-1 Information:\n"); | |
837 | if (circuit->area->newmetric) | |
838 | vty_out(vty, " Metric: %d", | |
839 | circuit->te_metric[0]); | |
840 | else | |
841 | vty_out(vty, " Metric: %d", | |
842 | circuit->metric[0]); | |
843 | if (!circuit->is_passive) { | |
844 | vty_out(vty, ", Active neighbors: %u\n", | |
845 | circuit->upadjcount[0]); | |
846 | vty_out(vty, | |
847 | " Hello interval: %u, " | |
848 | "Holddown count: %u %s\n", | |
849 | circuit->hello_interval[0], | |
850 | circuit->hello_multiplier[0], | |
851 | (circuit->pad_hellos ? "(pad)" | |
852 | : "(no-pad)")); | |
853 | vty_out(vty, | |
854 | " CNSP interval: %u, " | |
855 | "PSNP interval: %u\n", | |
856 | circuit->csnp_interval[0], | |
857 | circuit->psnp_interval[0]); | |
858 | if (circuit->circ_type == CIRCUIT_T_BROADCAST) | |
859 | vty_out(vty, | |
860 | " LAN Priority: %u, %s\n", | |
861 | circuit->priority[0], | |
862 | (circuit->u.bc.is_dr[0] | |
863 | ? "is DIS" | |
864 | : "is not DIS")); | |
865 | } else { | |
866 | vty_out(vty, "\n"); | |
867 | } | |
868 | } | |
869 | if (circuit->is_type & IS_LEVEL_2) { | |
870 | vty_out(vty, " Level-2 Information:\n"); | |
871 | if (circuit->area->newmetric) | |
872 | vty_out(vty, " Metric: %d", | |
873 | circuit->te_metric[1]); | |
874 | else | |
875 | vty_out(vty, " Metric: %d", | |
876 | circuit->metric[1]); | |
877 | if (!circuit->is_passive) { | |
878 | vty_out(vty, ", Active neighbors: %u\n", | |
879 | circuit->upadjcount[1]); | |
880 | vty_out(vty, | |
881 | " Hello interval: %u, " | |
882 | "Holddown count: %u %s\n", | |
883 | circuit->hello_interval[1], | |
884 | circuit->hello_multiplier[1], | |
885 | (circuit->pad_hellos ? "(pad)" | |
886 | : "(no-pad)")); | |
887 | vty_out(vty, | |
888 | " CNSP interval: %u, " | |
889 | "PSNP interval: %u\n", | |
890 | circuit->csnp_interval[1], | |
891 | circuit->psnp_interval[1]); | |
892 | if (circuit->circ_type == CIRCUIT_T_BROADCAST) | |
893 | vty_out(vty, | |
894 | " LAN Priority: %u, %s\n", | |
895 | circuit->priority[1], | |
896 | (circuit->u.bc.is_dr[1] | |
897 | ? "is DIS" | |
898 | : "is not DIS")); | |
899 | } else { | |
900 | vty_out(vty, "\n"); | |
901 | } | |
902 | } | |
903 | if (circuit->ip_addrs && listcount(circuit->ip_addrs) > 0) { | |
904 | vty_out(vty, " IP Prefix(es):\n"); | |
905 | for (ALL_LIST_ELEMENTS_RO(circuit->ip_addrs, node, | |
906 | ip_addr)) { | |
907 | prefix2str(ip_addr, buf, sizeof(buf)), | |
908 | vty_out(vty, " %s\n", buf); | |
909 | } | |
910 | } | |
911 | if (circuit->ipv6_link && listcount(circuit->ipv6_link) > 0) { | |
912 | vty_out(vty, " IPv6 Link-Locals:\n"); | |
913 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_link, node, | |
914 | ip_addr)) { | |
915 | prefix2str(ip_addr, (char *)buf, BUFSIZ), | |
916 | vty_out(vty, " %s\n", buf); | |
917 | } | |
918 | } | |
919 | if (circuit->ipv6_non_link | |
920 | && listcount(circuit->ipv6_non_link) > 0) { | |
921 | vty_out(vty, " IPv6 Prefixes:\n"); | |
922 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_non_link, node, | |
923 | ip_addr)) { | |
924 | prefix2str(ip_addr, (char *)buf, BUFSIZ), | |
925 | vty_out(vty, " %s\n", buf); | |
926 | } | |
927 | } | |
928 | ||
929 | vty_out(vty, "\n"); | |
930 | } | |
931 | return; | |
3f045a08 JB |
932 | } |
933 | ||
d62a17ae | 934 | int isis_interface_config_write(struct vty *vty) |
eb5d44eb | 935 | { |
d62a17ae | 936 | int write = 0; |
937 | struct listnode *node, *node2; | |
938 | struct interface *ifp; | |
939 | struct isis_area *area; | |
940 | struct isis_circuit *circuit; | |
941 | int i; | |
942 | ||
943 | for (ALL_LIST_ELEMENTS_RO(vrf_iflist(VRF_DEFAULT), node, ifp)) { | |
944 | if (ifp->ifindex == IFINDEX_DELETED) | |
945 | continue; | |
946 | ||
947 | /* IF name */ | |
a8b828f3 | 948 | vty_frame(vty, "interface %s\n", ifp->name); |
d62a17ae | 949 | write++; |
950 | /* IF desc */ | |
951 | if (ifp->desc) { | |
952 | vty_out(vty, " description %s\n", ifp->desc); | |
953 | write++; | |
954 | } | |
955 | /* ISIS Circuit */ | |
956 | for (ALL_LIST_ELEMENTS_RO(isis->area_list, node2, area)) { | |
957 | circuit = | |
958 | circuit_lookup_by_ifp(ifp, area->circuit_list); | |
959 | if (circuit == NULL) | |
960 | continue; | |
961 | if (circuit->ip_router) { | |
962 | vty_out(vty, " ip router isis %s\n", | |
963 | area->area_tag); | |
964 | write++; | |
965 | } | |
966 | if (circuit->is_passive) { | |
967 | vty_out(vty, " isis passive\n"); | |
968 | write++; | |
969 | } | |
970 | if (circuit->circ_type_config == CIRCUIT_T_P2P) { | |
971 | vty_out(vty, " isis network point-to-point\n"); | |
972 | write++; | |
973 | } | |
974 | if (circuit->ipv6_router) { | |
975 | vty_out(vty, " ipv6 router isis %s\n", | |
976 | area->area_tag); | |
977 | write++; | |
978 | } | |
979 | ||
980 | /* ISIS - circuit type */ | |
981 | if (circuit->is_type == IS_LEVEL_1) { | |
982 | vty_out(vty, " isis circuit-type level-1\n"); | |
983 | write++; | |
984 | } else { | |
985 | if (circuit->is_type == IS_LEVEL_2) { | |
986 | vty_out(vty, | |
987 | " isis circuit-type level-2-only\n"); | |
988 | write++; | |
989 | } | |
990 | } | |
991 | ||
992 | /* ISIS - CSNP interval */ | |
993 | if (circuit->csnp_interval[0] | |
994 | == circuit->csnp_interval[1]) { | |
995 | if (circuit->csnp_interval[0] | |
996 | != DEFAULT_CSNP_INTERVAL) { | |
997 | vty_out(vty, " isis csnp-interval %d\n", | |
998 | circuit->csnp_interval[0]); | |
999 | write++; | |
1000 | } | |
1001 | } else { | |
1002 | for (i = 0; i < 2; i++) { | |
1003 | if (circuit->csnp_interval[i] | |
1004 | != DEFAULT_CSNP_INTERVAL) { | |
1005 | vty_out(vty, | |
1006 | " isis csnp-interval %d level-%d\n", | |
1007 | circuit->csnp_interval | |
1008 | [i], | |
1009 | i + 1); | |
1010 | write++; | |
1011 | } | |
1012 | } | |
1013 | } | |
1014 | ||
1015 | /* ISIS - PSNP interval */ | |
1016 | if (circuit->psnp_interval[0] | |
1017 | == circuit->psnp_interval[1]) { | |
1018 | if (circuit->psnp_interval[0] | |
1019 | != DEFAULT_PSNP_INTERVAL) { | |
1020 | vty_out(vty, " isis psnp-interval %d\n", | |
1021 | circuit->psnp_interval[0]); | |
1022 | write++; | |
1023 | } | |
1024 | } else { | |
1025 | for (i = 0; i < 2; i++) { | |
1026 | if (circuit->psnp_interval[i] | |
1027 | != DEFAULT_PSNP_INTERVAL) { | |
1028 | vty_out(vty, | |
1029 | " isis psnp-interval %d level-%d\n", | |
1030 | circuit->psnp_interval | |
1031 | [i], | |
1032 | i + 1); | |
1033 | write++; | |
1034 | } | |
1035 | } | |
1036 | } | |
1037 | ||
1038 | /* ISIS - Hello padding - Defaults to true so only | |
1039 | * display if false */ | |
1040 | if (circuit->pad_hellos == 0) { | |
1041 | vty_out(vty, " no isis hello padding\n"); | |
1042 | write++; | |
1043 | } | |
1044 | ||
1045 | /* ISIS - Hello interval */ | |
1046 | if (circuit->hello_interval[0] | |
1047 | == circuit->hello_interval[1]) { | |
1048 | if (circuit->hello_interval[0] | |
1049 | != DEFAULT_HELLO_INTERVAL) { | |
1050 | vty_out(vty, | |
1051 | " isis hello-interval %d\n", | |
1052 | circuit->hello_interval[0]); | |
1053 | write++; | |
1054 | } | |
1055 | } else { | |
1056 | for (i = 0; i < 2; i++) { | |
1057 | if (circuit->hello_interval[i] | |
1058 | != DEFAULT_HELLO_INTERVAL) { | |
1059 | vty_out(vty, | |
1060 | " isis hello-interval %d level-%d\n", | |
1061 | circuit->hello_interval | |
1062 | [i], | |
1063 | i + 1); | |
1064 | write++; | |
1065 | } | |
1066 | } | |
1067 | } | |
1068 | ||
1069 | /* ISIS - Hello Multiplier */ | |
1070 | if (circuit->hello_multiplier[0] | |
1071 | == circuit->hello_multiplier[1]) { | |
1072 | if (circuit->hello_multiplier[0] | |
1073 | != DEFAULT_HELLO_MULTIPLIER) { | |
1074 | vty_out(vty, | |
1075 | " isis hello-multiplier %d\n", | |
1076 | circuit->hello_multiplier[0]); | |
1077 | write++; | |
1078 | } | |
1079 | } else { | |
1080 | for (i = 0; i < 2; i++) { | |
1081 | if (circuit->hello_multiplier[i] | |
1082 | != DEFAULT_HELLO_MULTIPLIER) { | |
1083 | vty_out(vty, | |
1084 | " isis hello-multiplier %d level-%d\n", | |
1085 | circuit->hello_multiplier | |
1086 | [i], | |
1087 | i + 1); | |
1088 | write++; | |
1089 | } | |
1090 | } | |
1091 | } | |
1092 | ||
1093 | /* ISIS - Priority */ | |
1094 | if (circuit->priority[0] == circuit->priority[1]) { | |
1095 | if (circuit->priority[0] != DEFAULT_PRIORITY) { | |
1096 | vty_out(vty, " isis priority %d\n", | |
1097 | circuit->priority[0]); | |
1098 | write++; | |
1099 | } | |
1100 | } else { | |
1101 | for (i = 0; i < 2; i++) { | |
1102 | if (circuit->priority[i] | |
1103 | != DEFAULT_PRIORITY) { | |
1104 | vty_out(vty, | |
1105 | " isis priority %d level-%d\n", | |
1106 | circuit->priority[i], | |
1107 | i + 1); | |
1108 | write++; | |
1109 | } | |
1110 | } | |
1111 | } | |
1112 | ||
1113 | /* ISIS - Metric */ | |
1114 | if (circuit->te_metric[0] == circuit->te_metric[1]) { | |
1115 | if (circuit->te_metric[0] | |
1116 | != DEFAULT_CIRCUIT_METRIC) { | |
1117 | vty_out(vty, " isis metric %d\n", | |
1118 | circuit->te_metric[0]); | |
1119 | write++; | |
1120 | } | |
1121 | } else { | |
1122 | for (i = 0; i < 2; i++) { | |
1123 | if (circuit->te_metric[i] | |
1124 | != DEFAULT_CIRCUIT_METRIC) { | |
1125 | vty_out(vty, | |
1126 | " isis metric %d level-%d\n", | |
1127 | circuit->te_metric[i], | |
1128 | i + 1); | |
1129 | write++; | |
1130 | } | |
1131 | } | |
1132 | } | |
1133 | if (circuit->passwd.type == ISIS_PASSWD_TYPE_HMAC_MD5) { | |
1134 | vty_out(vty, " isis password md5 %s\n", | |
1135 | circuit->passwd.passwd); | |
1136 | write++; | |
1137 | } else if (circuit->passwd.type | |
1138 | == ISIS_PASSWD_TYPE_CLEARTXT) { | |
1139 | vty_out(vty, " isis password clear %s\n", | |
1140 | circuit->passwd.passwd); | |
1141 | write++; | |
1142 | } | |
1143 | write += circuit_write_mt_settings(circuit, vty); | |
1144 | } | |
a8b828f3 | 1145 | vty_endframe(vty, "!\n"); |
d62a17ae | 1146 | } |
1147 | ||
1148 | return write; | |
eb5d44eb | 1149 | } |
eb5d44eb | 1150 | |
d62a17ae | 1151 | struct isis_circuit *isis_circuit_create(struct isis_area *area, |
1152 | struct interface *ifp) | |
eb5d44eb | 1153 | { |
d62a17ae | 1154 | struct isis_circuit *circuit = circuit_scan_by_ifp(ifp); |
1155 | if (circuit && circuit->area) | |
1156 | return NULL; | |
1157 | circuit = isis_csm_state_change(ISIS_ENABLE, circuit, area); | |
1158 | if (circuit->state != C_STATE_CONF && circuit->state != C_STATE_UP) | |
1159 | return circuit; | |
1160 | isis_circuit_if_bind(circuit, ifp); | |
1161 | return circuit; | |
eb5d44eb | 1162 | } |
1163 | ||
d62a17ae | 1164 | void isis_circuit_af_set(struct isis_circuit *circuit, bool ip_router, |
1165 | bool ipv6_router) | |
eb5d44eb | 1166 | { |
d62a17ae | 1167 | struct isis_area *area = circuit->area; |
1168 | bool change = circuit->ip_router != ip_router | |
1169 | || circuit->ipv6_router != ipv6_router; | |
1170 | bool was_enabled = !!circuit->area; | |
1171 | ||
1172 | area->ip_circuits += ip_router - circuit->ip_router; | |
1173 | area->ipv6_circuits += ipv6_router - circuit->ipv6_router; | |
1174 | circuit->ip_router = ip_router; | |
1175 | circuit->ipv6_router = ipv6_router; | |
1176 | ||
1177 | if (!change) | |
1178 | return; | |
1179 | ||
1180 | circuit_update_nlpids(circuit); | |
1181 | ||
1182 | if (!ip_router && !ipv6_router) | |
1183 | isis_csm_state_change(ISIS_DISABLE, circuit, area); | |
1184 | else if (!was_enabled) | |
1185 | isis_csm_state_change(ISIS_ENABLE, circuit, area); | |
1186 | else | |
1187 | lsp_regenerate_schedule(circuit->area, circuit->is_type, 0); | |
3f045a08 | 1188 | } |
eb5d44eb | 1189 | |
64dd3ffe | 1190 | ferr_r isis_circuit_passive_set(struct isis_circuit *circuit, bool passive) |
3f045a08 | 1191 | { |
d62a17ae | 1192 | if (circuit->is_passive == passive) |
64dd3ffe | 1193 | return ferr_ok(); |
d62a17ae | 1194 | |
1195 | if (if_is_loopback(circuit->interface) && !passive) | |
64dd3ffe | 1196 | return ferr_cfg_invalid("loopback is always passive"); |
d62a17ae | 1197 | |
1198 | if (circuit->state != C_STATE_UP) { | |
1199 | circuit->is_passive = passive; | |
1200 | } else { | |
1201 | struct isis_area *area = circuit->area; | |
1202 | isis_csm_state_change(ISIS_DISABLE, circuit, area); | |
1203 | circuit->is_passive = passive; | |
1204 | isis_csm_state_change(ISIS_ENABLE, circuit, area); | |
1205 | } | |
1206 | ||
64dd3ffe | 1207 | return ferr_ok(); |
eb5d44eb | 1208 | } |
1209 | ||
64dd3ffe DL |
1210 | ferr_r isis_circuit_metric_set(struct isis_circuit *circuit, int level, |
1211 | int metric) | |
3f045a08 | 1212 | { |
d62a17ae | 1213 | assert(level == IS_LEVEL_1 || level == IS_LEVEL_2); |
1214 | if (metric > MAX_WIDE_LINK_METRIC) | |
64dd3ffe DL |
1215 | return ferr_cfg_invalid("metric %d too large for wide metric", |
1216 | metric); | |
d62a17ae | 1217 | if (circuit->area && circuit->area->oldmetric |
1218 | && metric > MAX_NARROW_LINK_METRIC) | |
64dd3ffe DL |
1219 | return ferr_cfg_invalid("metric %d too large for narrow metric", |
1220 | metric); | |
d62a17ae | 1221 | |
1222 | circuit->te_metric[level - 1] = metric; | |
1223 | circuit->metric[level - 1] = metric; | |
1224 | ||
1225 | if (circuit->area) | |
1226 | lsp_regenerate_schedule(circuit->area, level, 0); | |
64dd3ffe | 1227 | return ferr_ok(); |
eb5d44eb | 1228 | } |
1229 | ||
64dd3ffe | 1230 | ferr_r isis_circuit_passwd_unset(struct isis_circuit *circuit) |
eb5d44eb | 1231 | { |
d62a17ae | 1232 | memset(&circuit->passwd, 0, sizeof(circuit->passwd)); |
64dd3ffe | 1233 | return ferr_ok(); |
3f045a08 JB |
1234 | } |
1235 | ||
d62a17ae | 1236 | static int isis_circuit_passwd_set(struct isis_circuit *circuit, |
1237 | u_char passwd_type, const char *passwd) | |
3f045a08 | 1238 | { |
d62a17ae | 1239 | int len; |
f390d2c7 | 1240 | |
d62a17ae | 1241 | if (!passwd) |
64dd3ffe | 1242 | return ferr_code_bug("no circuit password given"); |
50c7d14a | 1243 | |
d62a17ae | 1244 | len = strlen(passwd); |
1245 | if (len > 254) | |
64dd3ffe DL |
1246 | return ferr_code_bug( |
1247 | "circuit password too long (max 254 chars)"); | |
f390d2c7 | 1248 | |
d62a17ae | 1249 | circuit->passwd.len = len; |
1250 | strncpy((char *)circuit->passwd.passwd, passwd, 255); | |
1251 | circuit->passwd.type = passwd_type; | |
64dd3ffe | 1252 | return ferr_ok(); |
eb5d44eb | 1253 | } |
1254 | ||
64dd3ffe DL |
1255 | ferr_r isis_circuit_passwd_cleartext_set(struct isis_circuit *circuit, |
1256 | const char *passwd) | |
eb5d44eb | 1257 | { |
d62a17ae | 1258 | return isis_circuit_passwd_set(circuit, ISIS_PASSWD_TYPE_CLEARTXT, |
1259 | passwd); | |
50c7d14a | 1260 | } |
f390d2c7 | 1261 | |
64dd3ffe DL |
1262 | ferr_r isis_circuit_passwd_hmac_md5_set(struct isis_circuit *circuit, |
1263 | const char *passwd) | |
50c7d14a | 1264 | { |
d62a17ae | 1265 | return isis_circuit_passwd_set(circuit, ISIS_PASSWD_TYPE_HMAC_MD5, |
1266 | passwd); | |
eb5d44eb | 1267 | } |
64dd3ffe | 1268 | |
3f045a08 | 1269 | struct cmd_node interface_node = { |
9d303b37 | 1270 | INTERFACE_NODE, "%s(config-if)# ", 1, |
eb5d44eb | 1271 | }; |
1272 | ||
64dd3ffe | 1273 | ferr_r isis_circuit_circ_type_set(struct isis_circuit *circuit, int circ_type) |
3f045a08 | 1274 | { |
64dd3ffe DL |
1275 | if (circuit->circ_type == circ_type) |
1276 | return ferr_ok(); | |
1277 | ||
d62a17ae | 1278 | /* Changing the network type to/of loopback or unknown interfaces |
1279 | * is not supported. */ | |
1280 | if (circ_type == CIRCUIT_T_UNKNOWN || circ_type == CIRCUIT_T_LOOPBACK | |
1281 | || circuit->circ_type == CIRCUIT_T_LOOPBACK) { | |
64dd3ffe DL |
1282 | return ferr_cfg_invalid( |
1283 | "cannot change network type on unknown interface"); | |
d62a17ae | 1284 | } |
1285 | ||
d62a17ae | 1286 | if (circuit->state != C_STATE_UP) { |
1287 | circuit->circ_type = circ_type; | |
1288 | circuit->circ_type_config = circ_type; | |
1289 | } else { | |
1290 | struct isis_area *area = circuit->area; | |
1291 | if (circ_type == CIRCUIT_T_BROADCAST | |
1292 | && !if_is_broadcast(circuit->interface)) | |
64dd3ffe DL |
1293 | return ferr_cfg_reality( |
1294 | "cannot configure non-broadcast interface for broadcast operation"); | |
d62a17ae | 1295 | |
1296 | isis_csm_state_change(ISIS_DISABLE, circuit, area); | |
1297 | circuit->circ_type = circ_type; | |
1298 | circuit->circ_type_config = circ_type; | |
1299 | isis_csm_state_change(ISIS_ENABLE, circuit, area); | |
1300 | } | |
64dd3ffe | 1301 | return ferr_ok(); |
3f045a08 JB |
1302 | } |
1303 | ||
d62a17ae | 1304 | int isis_circuit_mt_enabled_set(struct isis_circuit *circuit, uint16_t mtid, |
1305 | bool enabled) | |
064f4896 | 1306 | { |
d62a17ae | 1307 | struct isis_circuit_mt_setting *setting; |
064f4896 | 1308 | |
d62a17ae | 1309 | setting = circuit_get_mt_setting(circuit, mtid); |
1310 | if (setting->enabled != enabled) { | |
1311 | setting->enabled = enabled; | |
1312 | lsp_regenerate_schedule(circuit->area, IS_LEVEL_1 | IS_LEVEL_2, | |
1313 | 0); | |
1314 | } | |
064f4896 | 1315 | |
d62a17ae | 1316 | return CMD_SUCCESS; |
064f4896 CF |
1317 | } |
1318 | ||
d62a17ae | 1319 | int isis_if_new_hook(struct interface *ifp) |
eb5d44eb | 1320 | { |
d62a17ae | 1321 | return 0; |
eb5d44eb | 1322 | } |
1323 | ||
d62a17ae | 1324 | int isis_if_delete_hook(struct interface *ifp) |
eb5d44eb | 1325 | { |
d62a17ae | 1326 | struct isis_circuit *circuit; |
1327 | /* Clean up the circuit data */ | |
1328 | if (ifp && ifp->info) { | |
1329 | circuit = ifp->info; | |
1330 | isis_csm_state_change(IF_DOWN_FROM_Z, circuit, circuit->area); | |
1331 | isis_csm_state_change(ISIS_DISABLE, circuit, circuit->area); | |
1332 | } | |
1333 | ||
1334 | return 0; | |
eb5d44eb | 1335 | } |
1336 | ||
d62a17ae | 1337 | void isis_circuit_init() |
eb5d44eb | 1338 | { |
d62a17ae | 1339 | /* Initialize Zebra interface data structure */ |
ce19a04a DL |
1340 | hook_register_prio(if_add, 0, isis_if_new_hook); |
1341 | hook_register_prio(if_del, 0, isis_if_delete_hook); | |
eb5d44eb | 1342 | |
d62a17ae | 1343 | /* Install interface node */ |
1344 | install_node(&interface_node, isis_interface_config_write); | |
1345 | if_cmd_init(); | |
eb5d44eb | 1346 | |
d62a17ae | 1347 | isis_vty_init(); |
eb5d44eb | 1348 | } |
58e16237 CF |
1349 | |
1350 | void isis_circuit_schedule_lsp_send(struct isis_circuit *circuit) | |
1351 | { | |
1352 | if (circuit->t_send_lsp) | |
1353 | return; | |
1354 | circuit->t_send_lsp = thread_add_event(master, send_lsp, circuit, 0, NULL); | |
1355 | } | |
1356 | ||
1357 | void isis_circuit_queue_lsp(struct isis_circuit *circuit, struct isis_lsp *lsp) | |
1358 | { | |
1359 | if (isis_lsp_hash_lookup(circuit->lsp_hash, lsp)) | |
1360 | return; | |
1361 | ||
1362 | listnode_add(circuit->lsp_queue, lsp); | |
1363 | isis_lsp_hash_add(circuit->lsp_hash, lsp); | |
1364 | isis_circuit_schedule_lsp_send(circuit); | |
1365 | } | |
1366 | ||
1367 | void isis_circuit_lsp_queue_clean(struct isis_circuit *circuit) | |
1368 | { | |
1369 | if (!circuit->lsp_queue) | |
1370 | return; | |
1371 | ||
1372 | list_delete_all_node(circuit->lsp_queue); | |
1373 | isis_lsp_hash_clean(circuit->lsp_hash); | |
1374 | } | |
1375 | ||
1376 | void isis_circuit_cancel_queued_lsp(struct isis_circuit *circuit, | |
1377 | struct isis_lsp *lsp) | |
1378 | { | |
1379 | if (!circuit->lsp_queue) | |
1380 | return; | |
1381 | ||
1382 | listnode_delete(circuit->lsp_queue, lsp); | |
1383 | isis_lsp_hash_release(circuit->lsp_hash, lsp); | |
1384 | } | |
1385 | ||
1386 | struct isis_lsp *isis_circuit_lsp_queue_pop(struct isis_circuit *circuit) | |
1387 | { | |
1388 | if (!circuit->lsp_queue) | |
1389 | return NULL; | |
1390 | ||
1391 | struct listnode *node = listhead(circuit->lsp_queue); | |
1392 | if (!node) | |
1393 | return NULL; | |
1394 | ||
1395 | struct isis_lsp *rv = listgetdata(node); | |
1396 | ||
1397 | list_delete_node(circuit->lsp_queue, node); | |
1398 | isis_lsp_hash_release(circuit->lsp_hash, rv); | |
1399 | ||
1400 | return rv; | |
1401 | } |