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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" |
20600086 | 41 | #include "lib/northbound_cli.h" |
eb5d44eb | 42 | |
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" |
48 | #include "isisd/isis_pdu.h" | |
49 | #include "isisd/isis_network.h" | |
50 | #include "isisd/isis_misc.h" | |
51 | #include "isisd/isis_constants.h" | |
52 | #include "isisd/isis_adjacency.h" | |
53 | #include "isisd/isis_dr.h" | |
eb5d44eb | 54 | #include "isisd/isisd.h" |
55 | #include "isisd/isis_csm.h" | |
56 | #include "isisd/isis_events.h" | |
f8c06e2c | 57 | #include "isisd/isis_te.h" |
064f4896 | 58 | #include "isisd/isis_mt.h" |
54ece698 | 59 | #include "isisd/isis_errors.h" |
9b39405f | 60 | #include "isisd/isis_tx_queue.h" |
eb5d44eb | 61 | |
676a4ea3 DL |
62 | DEFINE_QOBJ_TYPE(isis_circuit) |
63 | ||
ef7bd2a3 DS |
64 | DEFINE_HOOK(isis_if_new_hook, (struct interface *ifp), (ifp)) |
65 | ||
41b36e90 PJ |
66 | /* |
67 | * Prototypes. | |
68 | */ | |
41b36e90 PJ |
69 | int isis_interface_config_write(struct vty *); |
70 | int isis_if_new_hook(struct interface *); | |
71 | int isis_if_delete_hook(struct interface *); | |
72 | ||
4d762f26 | 73 | struct isis_circuit *isis_circuit_new(void) |
eb5d44eb | 74 | { |
d62a17ae | 75 | struct isis_circuit *circuit; |
76 | int i; | |
77 | ||
78 | circuit = XCALLOC(MTYPE_ISIS_CIRCUIT, sizeof(struct isis_circuit)); | |
d62a17ae | 79 | |
80 | /* | |
81 | * Default values | |
82 | */ | |
cc50ddb2 EDP |
83 | #ifndef FABRICD |
84 | circuit->is_type = yang_get_default_enum( | |
85 | "/frr-interface:lib/interface/frr-isisd:isis/circuit-type"); | |
86 | circuit->flags = 0; | |
87 | ||
88 | circuit->pad_hellos = yang_get_default_bool( | |
89 | "/frr-interface:lib/interface/frr-isisd:isis/hello/padding"); | |
90 | circuit->hello_interval[0] = yang_get_default_uint32( | |
91 | "/frr-interface:lib/interface/frr-isisd:isis/hello/interval/level-1"); | |
92 | circuit->hello_interval[1] = yang_get_default_uint32( | |
93 | "/frr-interface:lib/interface/frr-isisd:isis/hello/interval/level-2"); | |
94 | circuit->hello_multiplier[0] = yang_get_default_uint32( | |
95 | "/frr-interface:lib/interface/frr-isisd:isis/hello/multiplier/level-1"); | |
96 | circuit->hello_multiplier[1] = yang_get_default_uint32( | |
97 | "/frr-interface:lib/interface/frr-isisd:isis/hello/multiplier/level-2"); | |
98 | circuit->csnp_interval[0] = yang_get_default_uint16( | |
99 | "/frr-interface:lib/interface/frr-isisd:isis/csnp-interval/level-1"); | |
100 | circuit->csnp_interval[1] = yang_get_default_uint16( | |
101 | "/frr-interface:lib/interface/frr-isisd:isis/csnp-interval/level-2"); | |
102 | circuit->psnp_interval[0] = yang_get_default_uint16( | |
103 | "/frr-interface:lib/interface/frr-isisd:isis/psnp-interval/level-1"); | |
104 | circuit->psnp_interval[1] = yang_get_default_uint16( | |
105 | "/frr-interface:lib/interface/frr-isisd:isis/psnp-interval/level-2"); | |
106 | circuit->priority[0] = yang_get_default_uint8( | |
107 | "/frr-interface:lib/interface/frr-isisd:isis/priority/level-1"); | |
108 | circuit->priority[1] = yang_get_default_uint8( | |
109 | "/frr-interface:lib/interface/frr-isisd:isis/priority/level-2"); | |
110 | circuit->metric[0] = yang_get_default_uint32( | |
111 | "/frr-interface:lib/interface/frr-isisd:isis/metric/level-1"); | |
112 | circuit->metric[1] = yang_get_default_uint32( | |
113 | "/frr-interface:lib/interface/frr-isisd:isis/metric/level-2"); | |
114 | circuit->te_metric[0] = yang_get_default_uint32( | |
115 | "/frr-interface:lib/interface/frr-isisd:isis/metric/level-1"); | |
116 | circuit->te_metric[1] = yang_get_default_uint32( | |
117 | "/frr-interface:lib/interface/frr-isisd:isis/metric/level-2"); | |
118 | ||
119 | for (i = 0; i < 2; i++) { | |
120 | circuit->level_arg[i].level = i + 1; | |
121 | circuit->level_arg[i].circuit = circuit; | |
122 | } | |
123 | #else | |
d62a17ae | 124 | circuit->is_type = IS_LEVEL_1_AND_2; |
125 | circuit->flags = 0; | |
126 | circuit->pad_hellos = 1; | |
127 | for (i = 0; i < 2; i++) { | |
128 | circuit->hello_interval[i] = DEFAULT_HELLO_INTERVAL; | |
129 | circuit->hello_multiplier[i] = DEFAULT_HELLO_MULTIPLIER; | |
130 | circuit->csnp_interval[i] = DEFAULT_CSNP_INTERVAL; | |
131 | circuit->psnp_interval[i] = DEFAULT_PSNP_INTERVAL; | |
132 | circuit->priority[i] = DEFAULT_PRIORITY; | |
133 | circuit->metric[i] = DEFAULT_CIRCUIT_METRIC; | |
134 | circuit->te_metric[i] = DEFAULT_CIRCUIT_METRIC; | |
7da4aa3c CF |
135 | circuit->level_arg[i].level = i + 1; |
136 | circuit->level_arg[i].circuit = circuit; | |
d62a17ae | 137 | } |
cc50ddb2 | 138 | #endif /* ifndef FABRICD */ |
d62a17ae | 139 | |
d62a17ae | 140 | circuit_mt_init(circuit); |
141 | ||
142 | QOBJ_REG(circuit, isis_circuit); | |
143 | ||
144 | return circuit; | |
eb5d44eb | 145 | } |
146 | ||
d62a17ae | 147 | void isis_circuit_del(struct isis_circuit *circuit) |
3f045a08 | 148 | { |
d62a17ae | 149 | if (!circuit) |
150 | return; | |
3f045a08 | 151 | |
d62a17ae | 152 | QOBJ_UNREG(circuit); |
676a4ea3 | 153 | |
d62a17ae | 154 | isis_circuit_if_unbind(circuit, circuit->interface); |
3f045a08 | 155 | |
d62a17ae | 156 | circuit_mt_finish(circuit); |
064f4896 | 157 | |
d62a17ae | 158 | /* and lastly the circuit itself */ |
159 | XFREE(MTYPE_ISIS_CIRCUIT, circuit); | |
3f045a08 | 160 | |
d62a17ae | 161 | return; |
3f045a08 JB |
162 | } |
163 | ||
d62a17ae | 164 | void isis_circuit_configure(struct isis_circuit *circuit, |
165 | struct isis_area *area) | |
eb5d44eb | 166 | { |
d62a17ae | 167 | assert(area); |
168 | circuit->area = area; | |
169 | ||
170 | /* | |
171 | * Whenever the is-type of an area is changed, the is-type of each | |
172 | * circuit | |
173 | * in that area is updated to a non-empty subset of the area is-type. | |
174 | * Inversely, when configuring a new circuit, this property should be | |
175 | * ensured as well. | |
176 | */ | |
177 | if (area->is_type != IS_LEVEL_1_AND_2) | |
178 | circuit->is_type = area->is_type; | |
179 | ||
180 | /* | |
181 | * Add the circuit into area | |
182 | */ | |
183 | listnode_add(area->circuit_list, circuit); | |
184 | ||
185 | circuit->idx = flags_get_index(&area->flags); | |
186 | ||
187 | return; | |
eb5d44eb | 188 | } |
189 | ||
d62a17ae | 190 | void isis_circuit_deconfigure(struct isis_circuit *circuit, |
191 | struct isis_area *area) | |
eb5d44eb | 192 | { |
d62a17ae | 193 | /* Free the index of SRM and SSN flags */ |
194 | flags_free_index(&area->flags, circuit->idx); | |
195 | circuit->idx = 0; | |
196 | /* Remove circuit from area */ | |
197 | assert(circuit->area == area); | |
198 | listnode_delete(area->circuit_list, circuit); | |
199 | circuit->area = NULL; | |
200 | ||
201 | return; | |
eb5d44eb | 202 | } |
203 | ||
d62a17ae | 204 | struct isis_circuit *circuit_lookup_by_ifp(struct interface *ifp, |
205 | struct list *list) | |
eb5d44eb | 206 | { |
d62a17ae | 207 | struct isis_circuit *circuit = NULL; |
208 | struct listnode *node; | |
f390d2c7 | 209 | |
d62a17ae | 210 | if (!list) |
211 | return NULL; | |
f390d2c7 | 212 | |
d62a17ae | 213 | for (ALL_LIST_ELEMENTS_RO(list, node, circuit)) |
214 | if (circuit->interface == ifp) { | |
215 | assert(ifp->info == circuit); | |
216 | return circuit; | |
217 | } | |
3f045a08 | 218 | |
d62a17ae | 219 | return NULL; |
eb5d44eb | 220 | } |
221 | ||
d62a17ae | 222 | struct isis_circuit *circuit_scan_by_ifp(struct interface *ifp) |
eb5d44eb | 223 | { |
d62a17ae | 224 | struct isis_area *area; |
225 | struct listnode *node; | |
226 | struct isis_circuit *circuit; | |
227 | ||
228 | if (ifp->info) | |
229 | return (struct isis_circuit *)ifp->info; | |
230 | ||
231 | if (isis->area_list) { | |
232 | for (ALL_LIST_ELEMENTS_RO(isis->area_list, node, area)) { | |
233 | circuit = | |
234 | circuit_lookup_by_ifp(ifp, area->circuit_list); | |
235 | if (circuit) | |
236 | return circuit; | |
237 | } | |
238 | } | |
239 | return circuit_lookup_by_ifp(ifp, isis->init_circ_list); | |
eb5d44eb | 240 | } |
241 | ||
d62a17ae | 242 | void isis_circuit_add_addr(struct isis_circuit *circuit, |
243 | struct connected *connected) | |
eb5d44eb | 244 | { |
d62a17ae | 245 | struct listnode *node; |
246 | struct prefix_ipv4 *ipv4; | |
4690c7d7 | 247 | #if defined(EXTREME_DEBUG) |
d62a17ae | 248 | char buf[PREFIX2STR_BUFFER]; |
4690c7d7 | 249 | #endif |
d62a17ae | 250 | struct prefix_ipv6 *ipv6; |
f891f443 | 251 | |
d62a17ae | 252 | if (connected->address->family == AF_INET) { |
d7c0a89a | 253 | uint32_t addr = connected->address->u.prefix4.s_addr; |
d62a17ae | 254 | addr = ntohl(addr); |
255 | if (IPV4_NET0(addr) || IPV4_NET127(addr) || IN_CLASSD(addr) | |
256 | || IPV4_LINKLOCAL(addr)) | |
257 | return; | |
3f045a08 | 258 | |
d62a17ae | 259 | for (ALL_LIST_ELEMENTS_RO(circuit->ip_addrs, node, ipv4)) |
260 | if (prefix_same((struct prefix *)ipv4, | |
261 | connected->address)) | |
262 | return; | |
3f045a08 | 263 | |
d62a17ae | 264 | ipv4 = prefix_ipv4_new(); |
265 | ipv4->prefixlen = connected->address->prefixlen; | |
266 | ipv4->prefix = connected->address->u.prefix4; | |
267 | listnode_add(circuit->ip_addrs, ipv4); | |
f8c06e2c | 268 | |
1b3f47d0 OD |
269 | /* Update Local IP address parameter if MPLS TE is enable */ |
270 | if (circuit->ext && IS_MPLS_TE(circuit->ext)) { | |
271 | circuit->ext->local_addr.s_addr = ipv4->prefix.s_addr; | |
272 | SET_SUBTLV(circuit->ext, EXT_LOCAL_ADDR); | |
273 | } | |
f8c06e2c | 274 | |
d62a17ae | 275 | if (circuit->area) |
276 | lsp_regenerate_schedule(circuit->area, circuit->is_type, | |
277 | 0); | |
f891f443 | 278 | |
eb5d44eb | 279 | #ifdef EXTREME_DEBUG |
d62a17ae | 280 | prefix2str(connected->address, buf, sizeof(buf)); |
c59f88c8 CF |
281 | zlog_debug("Added IP address %s to circuit %s", buf, |
282 | circuit->interface->name); | |
f390d2c7 | 283 | #endif /* EXTREME_DEBUG */ |
d62a17ae | 284 | } |
285 | if (connected->address->family == AF_INET6) { | |
286 | if (IN6_IS_ADDR_LOOPBACK(&connected->address->u.prefix6)) | |
287 | return; | |
288 | ||
289 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_link, node, ipv6)) | |
290 | if (prefix_same((struct prefix *)ipv6, | |
291 | connected->address)) | |
292 | return; | |
293 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_non_link, node, ipv6)) | |
294 | if (prefix_same((struct prefix *)ipv6, | |
295 | connected->address)) | |
296 | return; | |
297 | ||
298 | ipv6 = prefix_ipv6_new(); | |
299 | ipv6->prefixlen = connected->address->prefixlen; | |
300 | ipv6->prefix = connected->address->u.prefix6; | |
301 | ||
302 | if (IN6_IS_ADDR_LINKLOCAL(&ipv6->prefix)) | |
303 | listnode_add(circuit->ipv6_link, ipv6); | |
304 | else | |
305 | listnode_add(circuit->ipv6_non_link, ipv6); | |
306 | if (circuit->area) | |
307 | lsp_regenerate_schedule(circuit->area, circuit->is_type, | |
308 | 0); | |
f891f443 | 309 | |
eb5d44eb | 310 | #ifdef EXTREME_DEBUG |
d62a17ae | 311 | prefix2str(connected->address, buf, sizeof(buf)); |
c59f88c8 CF |
312 | zlog_debug("Added IPv6 address %s to circuit %s", buf, |
313 | circuit->interface->name); | |
f390d2c7 | 314 | #endif /* EXTREME_DEBUG */ |
d62a17ae | 315 | } |
316 | return; | |
eb5d44eb | 317 | } |
318 | ||
d62a17ae | 319 | void isis_circuit_del_addr(struct isis_circuit *circuit, |
320 | struct connected *connected) | |
eb5d44eb | 321 | { |
d62a17ae | 322 | struct prefix_ipv4 *ipv4, *ip = NULL; |
323 | struct listnode *node; | |
324 | char buf[PREFIX2STR_BUFFER]; | |
325 | struct prefix_ipv6 *ipv6, *ip6 = NULL; | |
326 | int found = 0; | |
327 | ||
328 | if (connected->address->family == AF_INET) { | |
329 | ipv4 = prefix_ipv4_new(); | |
330 | ipv4->prefixlen = connected->address->prefixlen; | |
331 | ipv4->prefix = connected->address->u.prefix4; | |
332 | ||
333 | for (ALL_LIST_ELEMENTS_RO(circuit->ip_addrs, node, ip)) | |
334 | if (prefix_same((struct prefix *)ip, | |
335 | (struct prefix *)ipv4)) | |
336 | break; | |
337 | ||
338 | if (ip) { | |
339 | listnode_delete(circuit->ip_addrs, ip); | |
d0a6f3e0 | 340 | prefix_ipv4_free(ip); |
d62a17ae | 341 | if (circuit->area) |
342 | lsp_regenerate_schedule(circuit->area, | |
343 | circuit->is_type, 0); | |
344 | } else { | |
345 | prefix2str(connected->address, buf, sizeof(buf)); | |
346 | zlog_warn( | |
c59f88c8 CF |
347 | "Nonexistent ip address %s removal attempt from \ |
348 | circuit %s", | |
349 | buf, circuit->interface->name); | |
d62a17ae | 350 | zlog_warn("Current ip addresses on %s:", |
351 | circuit->interface->name); | |
352 | for (ALL_LIST_ELEMENTS_RO(circuit->ip_addrs, node, | |
353 | ip)) { | |
354 | prefix2str(ip, buf, sizeof(buf)); | |
355 | zlog_warn(" %s", buf); | |
356 | } | |
357 | zlog_warn("End of addresses"); | |
358 | } | |
359 | ||
360 | prefix_ipv4_free(ipv4); | |
f891f443 | 361 | } |
d62a17ae | 362 | if (connected->address->family == AF_INET6) { |
363 | ipv6 = prefix_ipv6_new(); | |
364 | ipv6->prefixlen = connected->address->prefixlen; | |
365 | ipv6->prefix = connected->address->u.prefix6; | |
366 | ||
367 | if (IN6_IS_ADDR_LINKLOCAL(&ipv6->prefix)) { | |
368 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_link, node, | |
369 | ip6)) { | |
370 | if (prefix_same((struct prefix *)ip6, | |
371 | (struct prefix *)ipv6)) | |
372 | break; | |
373 | } | |
374 | if (ip6) { | |
375 | listnode_delete(circuit->ipv6_link, ip6); | |
d0a6f3e0 | 376 | prefix_ipv6_free(ip6); |
d62a17ae | 377 | found = 1; |
378 | } | |
379 | } else { | |
380 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_non_link, node, | |
381 | ip6)) { | |
382 | if (prefix_same((struct prefix *)ip6, | |
383 | (struct prefix *)ipv6)) | |
384 | break; | |
385 | } | |
386 | if (ip6) { | |
387 | listnode_delete(circuit->ipv6_non_link, ip6); | |
d0a6f3e0 | 388 | prefix_ipv6_free(ip6); |
d62a17ae | 389 | found = 1; |
390 | } | |
391 | } | |
392 | ||
393 | if (!found) { | |
394 | prefix2str(connected->address, buf, sizeof(buf)); | |
395 | zlog_warn( | |
c59f88c8 CF |
396 | "Nonexistent ip address %s removal attempt from \ |
397 | circuit %s", | |
398 | buf, circuit->interface->name); | |
d62a17ae | 399 | zlog_warn("Current ip addresses on %s:", |
400 | circuit->interface->name); | |
401 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_link, node, | |
402 | ip6)) { | |
403 | prefix2str((struct prefix *)ip6, (char *)buf, | |
c28135f3 | 404 | sizeof(buf)); |
d62a17ae | 405 | zlog_warn(" %s", buf); |
406 | } | |
407 | zlog_warn(" -----"); | |
408 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_non_link, node, | |
409 | ip6)) { | |
410 | prefix2str((struct prefix *)ip6, (char *)buf, | |
c28135f3 | 411 | sizeof(buf)); |
d62a17ae | 412 | zlog_warn(" %s", buf); |
413 | } | |
414 | zlog_warn("End of addresses"); | |
415 | } else if (circuit->area) | |
416 | lsp_regenerate_schedule(circuit->area, circuit->is_type, | |
417 | 0); | |
418 | ||
419 | prefix_ipv6_free(ipv6); | |
f891f443 | 420 | } |
d62a17ae | 421 | return; |
422 | } | |
e8aca32f | 423 | |
0849c75e | 424 | static uint8_t isis_circuit_id_gen(struct isis *isis, struct interface *ifp) |
d62a17ae | 425 | { |
068c8222 CF |
426 | /* Circuit ids MUST be unique for any broadcast circuits. Otherwise, |
427 | * Pseudo-Node LSPs cannot be generated correctly. | |
428 | * | |
98c5bc15 | 429 | * Currently, allocate one circuit ID for any circuit, limiting the total |
068c8222 CF |
430 | * numer of circuits IS-IS can run on to 255. |
431 | * | |
98c5bc15 | 432 | * We should revisit this when implementing 3-way adjacencies for p2p, since |
068c8222 CF |
433 | * we then have extended interface IDs available. |
434 | */ | |
435 | uint8_t id = ifp->ifindex; | |
d62a17ae | 436 | unsigned int i; |
d62a17ae | 437 | |
068c8222 CF |
438 | for (i = 0; i < 256; i++) { |
439 | if (id && !_ISIS_CHECK_FLAG(isis->circuit_ids_used, id)) | |
d62a17ae | 440 | break; |
068c8222 | 441 | id++; |
f891f443 | 442 | } |
443 | ||
068c8222 | 444 | if (i == 256) { |
996c9314 LB |
445 | zlog_warn("Could not allocate a circuit id for '%s'", |
446 | ifp->name); | |
068c8222 | 447 | return 0; |
f891f443 | 448 | } |
e8aca32f | 449 | |
0849c75e | 450 | _ISIS_SET_FLAG(isis->circuit_ids_used, id); |
d62a17ae | 451 | return id; |
3f045a08 JB |
452 | } |
453 | ||
d62a17ae | 454 | void isis_circuit_if_add(struct isis_circuit *circuit, struct interface *ifp) |
eb5d44eb | 455 | { |
d62a17ae | 456 | struct listnode *node, *nnode; |
457 | struct connected *conn; | |
458 | ||
d62a17ae | 459 | isis_circuit_if_bind(circuit, ifp); |
d62a17ae | 460 | |
461 | if (if_is_broadcast(ifp)) { | |
65f18157 | 462 | if (fabricd || circuit->circ_type_config == CIRCUIT_T_P2P) |
d62a17ae | 463 | circuit->circ_type = CIRCUIT_T_P2P; |
464 | else | |
465 | circuit->circ_type = CIRCUIT_T_BROADCAST; | |
466 | } else if (if_is_pointopoint(ifp)) { | |
467 | circuit->circ_type = CIRCUIT_T_P2P; | |
468 | } else if (if_is_loopback(ifp)) { | |
469 | circuit->circ_type = CIRCUIT_T_LOOPBACK; | |
470 | circuit->is_passive = 1; | |
471 | } else { | |
472 | /* It's normal in case of loopback etc. */ | |
473 | if (isis->debugs & DEBUG_EVENTS) | |
474 | zlog_debug("isis_circuit_if_add: unsupported media"); | |
475 | circuit->circ_type = CIRCUIT_T_UNKNOWN; | |
476 | } | |
477 | ||
478 | circuit->ip_addrs = list_new(); | |
479 | circuit->ipv6_link = list_new(); | |
480 | circuit->ipv6_non_link = list_new(); | |
481 | ||
482 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, conn)) | |
483 | isis_circuit_add_addr(circuit, conn); | |
1b3f47d0 | 484 | |
eb5d44eb | 485 | } |
486 | ||
d62a17ae | 487 | void isis_circuit_if_del(struct isis_circuit *circuit, struct interface *ifp) |
eb5d44eb | 488 | { |
d62a17ae | 489 | struct listnode *node, *nnode; |
490 | struct connected *conn; | |
491 | ||
492 | assert(circuit->interface == ifp); | |
493 | ||
494 | /* destroy addresses */ | |
495 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, conn)) | |
496 | isis_circuit_del_addr(circuit, conn); | |
497 | ||
498 | if (circuit->ip_addrs) { | |
499 | assert(listcount(circuit->ip_addrs) == 0); | |
6a154c88 | 500 | list_delete(&circuit->ip_addrs); |
d62a17ae | 501 | } |
502 | ||
503 | if (circuit->ipv6_link) { | |
504 | assert(listcount(circuit->ipv6_link) == 0); | |
6a154c88 | 505 | list_delete(&circuit->ipv6_link); |
d62a17ae | 506 | } |
507 | ||
508 | if (circuit->ipv6_non_link) { | |
509 | assert(listcount(circuit->ipv6_non_link) == 0); | |
6a154c88 | 510 | list_delete(&circuit->ipv6_non_link); |
d62a17ae | 511 | } |
512 | ||
513 | circuit->circ_type = CIRCUIT_T_UNKNOWN; | |
eb5d44eb | 514 | } |
515 | ||
d62a17ae | 516 | void isis_circuit_if_bind(struct isis_circuit *circuit, struct interface *ifp) |
3f045a08 | 517 | { |
d62a17ae | 518 | assert(circuit != NULL); |
519 | assert(ifp != NULL); | |
520 | if (circuit->interface) | |
521 | assert(circuit->interface == ifp); | |
522 | else | |
523 | circuit->interface = ifp; | |
524 | if (ifp->info) | |
525 | assert(ifp->info == circuit); | |
526 | else | |
527 | ifp->info = circuit; | |
3f045a08 JB |
528 | } |
529 | ||
d62a17ae | 530 | void isis_circuit_if_unbind(struct isis_circuit *circuit, struct interface *ifp) |
eb5d44eb | 531 | { |
d62a17ae | 532 | assert(circuit != NULL); |
533 | assert(ifp != NULL); | |
534 | assert(circuit->interface == ifp); | |
535 | assert(ifp->info == circuit); | |
536 | circuit->interface = NULL; | |
537 | ifp->info = NULL; | |
3f045a08 | 538 | } |
f390d2c7 | 539 | |
d62a17ae | 540 | static void isis_circuit_update_all_srmflags(struct isis_circuit *circuit, |
541 | int is_set) | |
3f045a08 | 542 | { |
d62a17ae | 543 | struct isis_area *area; |
544 | struct isis_lsp *lsp; | |
d62a17ae | 545 | int level; |
546 | ||
547 | assert(circuit); | |
548 | area = circuit->area; | |
549 | assert(area); | |
550 | for (level = ISIS_LEVEL1; level <= ISIS_LEVEL2; level++) { | |
9b39405f CF |
551 | if (!(level & circuit->is_type)) |
552 | continue; | |
553 | ||
4bef0ec4 | 554 | if (!lspdb_count(&area->lspdb[level - 1])) |
9b39405f CF |
555 | continue; |
556 | ||
81fddbe7 | 557 | frr_each (lspdb, &area->lspdb[level - 1], lsp) { |
9b39405f CF |
558 | if (is_set) { |
559 | isis_tx_queue_add(circuit->tx_queue, lsp, | |
560 | TX_LSP_NORMAL); | |
561 | } else { | |
562 | isis_tx_queue_del(circuit->tx_queue, lsp); | |
d62a17ae | 563 | } |
564 | } | |
565 | } | |
eb5d44eb | 566 | } |
567 | ||
d62a17ae | 568 | size_t isis_circuit_pdu_size(struct isis_circuit *circuit) |
b20ccb3a | 569 | { |
d62a17ae | 570 | return ISO_MTU(circuit); |
b20ccb3a CF |
571 | } |
572 | ||
d62a17ae | 573 | void isis_circuit_stream(struct isis_circuit *circuit, struct stream **stream) |
b20ccb3a | 574 | { |
d62a17ae | 575 | size_t stream_size = isis_circuit_pdu_size(circuit); |
576 | ||
577 | if (!*stream) { | |
578 | *stream = stream_new(stream_size); | |
579 | } else { | |
580 | if (STREAM_SIZE(*stream) != stream_size) | |
db3c830a | 581 | stream_resize_inplace(stream, stream_size); |
d62a17ae | 582 | stream_reset(*stream); |
583 | } | |
b20ccb3a CF |
584 | } |
585 | ||
d62a17ae | 586 | void isis_circuit_prepare(struct isis_circuit *circuit) |
5904f19f | 587 | { |
b0dd98e7 | 588 | #if ISIS_METHOD != ISIS_METHOD_DLPI |
d62a17ae | 589 | thread_add_read(master, isis_receive, circuit, circuit->fd, |
590 | &circuit->t_read); | |
5904f19f | 591 | #else |
d62a17ae | 592 | thread_add_timer_msec(master, isis_receive, circuit, |
593 | listcount(circuit->area->circuit_list) * 100, | |
594 | &circuit->t_read); | |
5904f19f RW |
595 | #endif |
596 | } | |
597 | ||
d62a17ae | 598 | int isis_circuit_up(struct isis_circuit *circuit) |
eb5d44eb | 599 | { |
d62a17ae | 600 | int retv; |
601 | ||
602 | /* Set the flags for all the lsps of the circuit. */ | |
603 | isis_circuit_update_all_srmflags(circuit, 1); | |
604 | ||
605 | if (circuit->state == C_STATE_UP) | |
606 | return ISIS_OK; | |
607 | ||
608 | if (circuit->is_passive) | |
609 | return ISIS_OK; | |
610 | ||
611 | if (circuit->area->lsp_mtu > isis_circuit_pdu_size(circuit)) { | |
af4c2728 | 612 | flog_err( |
1a7ecb96 | 613 | EC_ISIS_CONFIG, |
d62a17ae | 614 | "Interface MTU %zu on %s is too low to support area lsp mtu %u!", |
615 | isis_circuit_pdu_size(circuit), | |
616 | circuit->interface->name, circuit->area->lsp_mtu); | |
617 | isis_circuit_update_all_srmflags(circuit, 0); | |
618 | return ISIS_ERROR; | |
619 | } | |
620 | ||
621 | if (circuit->circ_type == CIRCUIT_T_BROADCAST) { | |
0849c75e CF |
622 | circuit->circuit_id = isis_circuit_id_gen(isis, circuit->interface); |
623 | if (!circuit->circuit_id) { | |
af4c2728 | 624 | flog_err( |
1a7ecb96 | 625 | EC_ISIS_CONFIG, |
54ece698 | 626 | "There are already 255 broadcast circuits active!"); |
0849c75e CF |
627 | return ISIS_ERROR; |
628 | } | |
629 | ||
d62a17ae | 630 | /* |
631 | * Get the Hardware Address | |
632 | */ | |
633 | if (circuit->interface->hw_addr_len != ETH_ALEN) { | |
634 | zlog_warn("unsupported link layer"); | |
635 | } else { | |
636 | memcpy(circuit->u.bc.snpa, circuit->interface->hw_addr, | |
637 | ETH_ALEN); | |
638 | } | |
3f045a08 | 639 | #ifdef EXTREME_DEGUG |
d62a17ae | 640 | zlog_debug("isis_circuit_if_add: if_id %d, isomtu %d snpa %s", |
641 | circuit->interface->ifindex, ISO_MTU(circuit), | |
642 | snpa_print(circuit->u.bc.snpa)); | |
3f045a08 | 643 | #endif /* EXTREME_DEBUG */ |
3f045a08 | 644 | |
d62a17ae | 645 | circuit->u.bc.adjdb[0] = list_new(); |
646 | circuit->u.bc.adjdb[1] = list_new(); | |
647 | ||
648 | /* | |
649 | * ISO 10589 - 8.4.1 Enabling of broadcast circuits | |
650 | */ | |
651 | ||
652 | /* initilizing the hello sending threads | |
653 | * for a broadcast IF | |
654 | */ | |
655 | ||
656 | /* 8.4.1 a) commence sending of IIH PDUs */ | |
657 | ||
7c4f7aab CF |
658 | for (int level = ISIS_LEVEL1; level <= ISIS_LEVEL2; level++) { |
659 | if (!(circuit->is_type & level)) | |
660 | continue; | |
661 | ||
a0a707ee | 662 | send_hello_sched(circuit, level, TRIGGERED_IIH_DELAY); |
7c4f7aab CF |
663 | circuit->u.bc.lan_neighs[level - 1] = list_new(); |
664 | ||
665 | thread_add_timer(master, isis_run_dr, | |
666 | &circuit->level_arg[level - 1], | |
667 | 2 * circuit->hello_interval[level - 1], | |
668 | &circuit->u.bc.t_run_dr[level - 1]); | |
d62a17ae | 669 | } |
670 | ||
671 | /* 8.4.1 b) FIXME: solicit ES - 8.4.6 */ | |
672 | /* 8.4.1 c) FIXME: listen for ESH PDUs */ | |
d4670f51 | 673 | } else if (circuit->circ_type == CIRCUIT_T_P2P) { |
d62a17ae | 674 | /* initializing the hello send threads |
675 | * for a ptp IF | |
676 | */ | |
677 | circuit->u.p2p.neighbor = NULL; | |
a0a707ee | 678 | send_hello_sched(circuit, 0, TRIGGERED_IIH_DELAY); |
d62a17ae | 679 | } |
680 | ||
681 | /* initializing PSNP timers */ | |
682 | if (circuit->is_type & IS_LEVEL_1) | |
683 | thread_add_timer( | |
684 | master, send_l1_psnp, circuit, | |
685 | isis_jitter(circuit->psnp_interval[0], PSNP_JITTER), | |
686 | &circuit->t_send_psnp[0]); | |
687 | ||
688 | if (circuit->is_type & IS_LEVEL_2) | |
689 | thread_add_timer( | |
690 | master, send_l2_psnp, circuit, | |
691 | isis_jitter(circuit->psnp_interval[1], PSNP_JITTER), | |
692 | &circuit->t_send_psnp[1]); | |
693 | ||
694 | /* unified init for circuits; ignore warnings below this level */ | |
695 | retv = isis_sock_init(circuit); | |
696 | if (retv != ISIS_OK) { | |
697 | isis_circuit_down(circuit); | |
698 | return retv; | |
699 | } | |
700 | ||
701 | /* initialize the circuit streams after opening connection */ | |
702 | isis_circuit_stream(circuit, &circuit->rcv_stream); | |
703 | isis_circuit_stream(circuit, &circuit->snd_stream); | |
704 | ||
705 | isis_circuit_prepare(circuit); | |
706 | ||
9b39405f | 707 | circuit->tx_queue = isis_tx_queue_new(circuit, send_lsp); |
d62a17ae | 708 | |
392b89f3 EDP |
709 | #ifndef FABRICD |
710 | /* send northbound notification */ | |
711 | isis_notif_if_state_change(circuit, false); | |
712 | #endif /* ifndef FABRICD */ | |
713 | ||
d62a17ae | 714 | return ISIS_OK; |
eb5d44eb | 715 | } |
716 | ||
d62a17ae | 717 | void isis_circuit_down(struct isis_circuit *circuit) |
eb5d44eb | 718 | { |
392b89f3 EDP |
719 | #ifndef FABRICD |
720 | /* send northbound notification */ | |
721 | isis_notif_if_state_change(circuit, true); | |
722 | #endif /* ifndef FABRICD */ | |
723 | ||
d62a17ae | 724 | /* Clear the flags for all the lsps of the circuit. */ |
725 | isis_circuit_update_all_srmflags(circuit, 0); | |
726 | ||
727 | if (circuit->circ_type == CIRCUIT_T_BROADCAST) { | |
728 | /* destroy neighbour lists */ | |
729 | if (circuit->u.bc.lan_neighs[0]) { | |
6a154c88 | 730 | list_delete(&circuit->u.bc.lan_neighs[0]); |
d62a17ae | 731 | circuit->u.bc.lan_neighs[0] = NULL; |
732 | } | |
733 | if (circuit->u.bc.lan_neighs[1]) { | |
6a154c88 | 734 | list_delete(&circuit->u.bc.lan_neighs[1]); |
d62a17ae | 735 | circuit->u.bc.lan_neighs[1] = NULL; |
736 | } | |
737 | /* destroy adjacency databases */ | |
738 | if (circuit->u.bc.adjdb[0]) { | |
739 | circuit->u.bc.adjdb[0]->del = isis_delete_adj; | |
6a154c88 | 740 | list_delete(&circuit->u.bc.adjdb[0]); |
d62a17ae | 741 | circuit->u.bc.adjdb[0] = NULL; |
742 | } | |
743 | if (circuit->u.bc.adjdb[1]) { | |
744 | circuit->u.bc.adjdb[1]->del = isis_delete_adj; | |
6a154c88 | 745 | list_delete(&circuit->u.bc.adjdb[1]); |
d62a17ae | 746 | circuit->u.bc.adjdb[1] = NULL; |
747 | } | |
748 | if (circuit->u.bc.is_dr[0]) { | |
749 | isis_dr_resign(circuit, 1); | |
750 | circuit->u.bc.is_dr[0] = 0; | |
751 | } | |
752 | memset(circuit->u.bc.l1_desig_is, 0, ISIS_SYS_ID_LEN + 1); | |
753 | if (circuit->u.bc.is_dr[1]) { | |
754 | isis_dr_resign(circuit, 2); | |
755 | circuit->u.bc.is_dr[1] = 0; | |
756 | } | |
757 | memset(circuit->u.bc.l2_desig_is, 0, ISIS_SYS_ID_LEN + 1); | |
758 | memset(circuit->u.bc.snpa, 0, ETH_ALEN); | |
759 | ||
760 | THREAD_TIMER_OFF(circuit->u.bc.t_send_lan_hello[0]); | |
761 | THREAD_TIMER_OFF(circuit->u.bc.t_send_lan_hello[1]); | |
762 | THREAD_TIMER_OFF(circuit->u.bc.t_run_dr[0]); | |
763 | THREAD_TIMER_OFF(circuit->u.bc.t_run_dr[1]); | |
764 | THREAD_TIMER_OFF(circuit->u.bc.t_refresh_pseudo_lsp[0]); | |
765 | THREAD_TIMER_OFF(circuit->u.bc.t_refresh_pseudo_lsp[1]); | |
766 | circuit->lsp_regenerate_pending[0] = 0; | |
767 | circuit->lsp_regenerate_pending[1] = 0; | |
0849c75e CF |
768 | |
769 | _ISIS_CLEAR_FLAG(isis->circuit_ids_used, circuit->circuit_id); | |
770 | circuit->circuit_id = 0; | |
d62a17ae | 771 | } else if (circuit->circ_type == CIRCUIT_T_P2P) { |
772 | isis_delete_adj(circuit->u.p2p.neighbor); | |
773 | circuit->u.p2p.neighbor = NULL; | |
774 | THREAD_TIMER_OFF(circuit->u.p2p.t_send_p2p_hello); | |
775 | } | |
776 | ||
777 | /* Cancel all active threads */ | |
778 | THREAD_TIMER_OFF(circuit->t_send_csnp[0]); | |
779 | THREAD_TIMER_OFF(circuit->t_send_csnp[1]); | |
780 | THREAD_TIMER_OFF(circuit->t_send_psnp[0]); | |
781 | THREAD_TIMER_OFF(circuit->t_send_psnp[1]); | |
782 | THREAD_OFF(circuit->t_read); | |
783 | ||
9b39405f CF |
784 | if (circuit->tx_queue) { |
785 | isis_tx_queue_free(circuit->tx_queue); | |
786 | circuit->tx_queue = NULL; | |
58e16237 CF |
787 | } |
788 | ||
d62a17ae | 789 | /* send one gratuitous hello to spead up convergence */ |
d4670f51 CF |
790 | if (circuit->state == C_STATE_UP) { |
791 | if (circuit->is_type & IS_LEVEL_1) | |
792 | send_hello(circuit, IS_LEVEL_1); | |
793 | if (circuit->is_type & IS_LEVEL_2) | |
794 | send_hello(circuit, IS_LEVEL_2); | |
795 | } | |
d62a17ae | 796 | |
797 | circuit->upadjcount[0] = 0; | |
798 | circuit->upadjcount[1] = 0; | |
799 | ||
800 | /* close the socket */ | |
801 | if (circuit->fd) { | |
802 | close(circuit->fd); | |
803 | circuit->fd = 0; | |
804 | } | |
805 | ||
806 | if (circuit->rcv_stream != NULL) { | |
807 | stream_free(circuit->rcv_stream); | |
808 | circuit->rcv_stream = NULL; | |
809 | } | |
810 | ||
811 | if (circuit->snd_stream != NULL) { | |
812 | stream_free(circuit->snd_stream); | |
813 | circuit->snd_stream = NULL; | |
814 | } | |
815 | ||
816 | thread_cancel_event(master, circuit); | |
817 | ||
818 | return; | |
eb5d44eb | 819 | } |
820 | ||
d62a17ae | 821 | void circuit_update_nlpids(struct isis_circuit *circuit) |
eb5d44eb | 822 | { |
d62a17ae | 823 | circuit->nlpids.count = 0; |
824 | ||
825 | if (circuit->ip_router) { | |
826 | circuit->nlpids.nlpids[0] = NLPID_IP; | |
827 | circuit->nlpids.count++; | |
828 | } | |
829 | if (circuit->ipv6_router) { | |
830 | circuit->nlpids.nlpids[circuit->nlpids.count] = NLPID_IPV6; | |
831 | circuit->nlpids.count++; | |
832 | } | |
833 | return; | |
eb5d44eb | 834 | } |
835 | ||
d62a17ae | 836 | void isis_circuit_print_vty(struct isis_circuit *circuit, struct vty *vty, |
837 | char detail) | |
3f045a08 | 838 | { |
d62a17ae | 839 | if (detail == ISIS_UI_LEVEL_BRIEF) { |
840 | vty_out(vty, " %-12s", circuit->interface->name); | |
841 | vty_out(vty, "0x%-7x", circuit->circuit_id); | |
842 | vty_out(vty, "%-9s", circuit_state2string(circuit->state)); | |
843 | vty_out(vty, "%-9s", circuit_type2string(circuit->circ_type)); | |
844 | vty_out(vty, "%-9s", circuit_t2string(circuit->is_type)); | |
845 | vty_out(vty, "\n"); | |
846 | } | |
847 | ||
848 | if (detail == ISIS_UI_LEVEL_DETAIL) { | |
849 | struct listnode *node; | |
850 | struct prefix *ip_addr; | |
851 | char buf[BUFSIZ]; | |
852 | ||
853 | vty_out(vty, " Interface: %s", circuit->interface->name); | |
854 | vty_out(vty, ", State: %s", | |
855 | circuit_state2string(circuit->state)); | |
856 | if (circuit->is_passive) | |
857 | vty_out(vty, ", Passive"); | |
858 | else | |
859 | vty_out(vty, ", Active"); | |
860 | vty_out(vty, ", Circuit Id: 0x%x", circuit->circuit_id); | |
861 | vty_out(vty, "\n"); | |
862 | vty_out(vty, " Type: %s", | |
863 | circuit_type2string(circuit->circ_type)); | |
864 | vty_out(vty, ", Level: %s", circuit_t2string(circuit->is_type)); | |
865 | if (circuit->circ_type == CIRCUIT_T_BROADCAST) | |
866 | vty_out(vty, ", SNPA: %-10s", | |
867 | snpa_print(circuit->u.bc.snpa)); | |
868 | vty_out(vty, "\n"); | |
869 | if (circuit->is_type & IS_LEVEL_1) { | |
870 | vty_out(vty, " Level-1 Information:\n"); | |
871 | if (circuit->area->newmetric) | |
872 | vty_out(vty, " Metric: %d", | |
873 | circuit->te_metric[0]); | |
874 | else | |
875 | vty_out(vty, " Metric: %d", | |
876 | circuit->metric[0]); | |
877 | if (!circuit->is_passive) { | |
878 | vty_out(vty, ", Active neighbors: %u\n", | |
879 | circuit->upadjcount[0]); | |
880 | vty_out(vty, | |
881 | " Hello interval: %u, " | |
882 | "Holddown count: %u %s\n", | |
883 | circuit->hello_interval[0], | |
884 | circuit->hello_multiplier[0], | |
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[0], | |
891 | circuit->psnp_interval[0]); | |
892 | if (circuit->circ_type == CIRCUIT_T_BROADCAST) | |
893 | vty_out(vty, | |
894 | " LAN Priority: %u, %s\n", | |
895 | circuit->priority[0], | |
896 | (circuit->u.bc.is_dr[0] | |
897 | ? "is DIS" | |
898 | : "is not DIS")); | |
899 | } else { | |
900 | vty_out(vty, "\n"); | |
901 | } | |
902 | } | |
903 | if (circuit->is_type & IS_LEVEL_2) { | |
904 | vty_out(vty, " Level-2 Information:\n"); | |
905 | if (circuit->area->newmetric) | |
906 | vty_out(vty, " Metric: %d", | |
907 | circuit->te_metric[1]); | |
908 | else | |
909 | vty_out(vty, " Metric: %d", | |
910 | circuit->metric[1]); | |
911 | if (!circuit->is_passive) { | |
912 | vty_out(vty, ", Active neighbors: %u\n", | |
913 | circuit->upadjcount[1]); | |
914 | vty_out(vty, | |
915 | " Hello interval: %u, " | |
916 | "Holddown count: %u %s\n", | |
917 | circuit->hello_interval[1], | |
918 | circuit->hello_multiplier[1], | |
919 | (circuit->pad_hellos ? "(pad)" | |
920 | : "(no-pad)")); | |
921 | vty_out(vty, | |
922 | " CNSP interval: %u, " | |
923 | "PSNP interval: %u\n", | |
924 | circuit->csnp_interval[1], | |
925 | circuit->psnp_interval[1]); | |
926 | if (circuit->circ_type == CIRCUIT_T_BROADCAST) | |
927 | vty_out(vty, | |
928 | " LAN Priority: %u, %s\n", | |
929 | circuit->priority[1], | |
930 | (circuit->u.bc.is_dr[1] | |
931 | ? "is DIS" | |
932 | : "is not DIS")); | |
933 | } else { | |
934 | vty_out(vty, "\n"); | |
935 | } | |
936 | } | |
937 | if (circuit->ip_addrs && listcount(circuit->ip_addrs) > 0) { | |
938 | vty_out(vty, " IP Prefix(es):\n"); | |
939 | for (ALL_LIST_ELEMENTS_RO(circuit->ip_addrs, node, | |
940 | ip_addr)) { | |
1445b43c A |
941 | prefix2str(ip_addr, buf, sizeof(buf)); |
942 | vty_out(vty, " %s\n", buf); | |
d62a17ae | 943 | } |
944 | } | |
945 | if (circuit->ipv6_link && listcount(circuit->ipv6_link) > 0) { | |
946 | vty_out(vty, " IPv6 Link-Locals:\n"); | |
947 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_link, node, | |
948 | ip_addr)) { | |
1445b43c A |
949 | prefix2str(ip_addr, (char *)buf, BUFSIZ); |
950 | vty_out(vty, " %s\n", buf); | |
d62a17ae | 951 | } |
952 | } | |
953 | if (circuit->ipv6_non_link | |
954 | && listcount(circuit->ipv6_non_link) > 0) { | |
955 | vty_out(vty, " IPv6 Prefixes:\n"); | |
956 | for (ALL_LIST_ELEMENTS_RO(circuit->ipv6_non_link, node, | |
957 | ip_addr)) { | |
1445b43c A |
958 | prefix2str(ip_addr, (char *)buf, BUFSIZ); |
959 | vty_out(vty, " %s\n", buf); | |
d62a17ae | 960 | } |
961 | } | |
962 | ||
963 | vty_out(vty, "\n"); | |
964 | } | |
965 | return; | |
3f045a08 JB |
966 | } |
967 | ||
d56afe53 CF |
968 | DEFINE_HOOK(isis_circuit_config_write, |
969 | (struct isis_circuit *circuit, struct vty *vty), | |
970 | (circuit, vty)) | |
971 | ||
20600086 | 972 | #ifdef FABRICD |
d62a17ae | 973 | int isis_interface_config_write(struct vty *vty) |
eb5d44eb | 974 | { |
f4e14fdb | 975 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 976 | int write = 0; |
f4e14fdb | 977 | struct listnode *node; |
d62a17ae | 978 | struct interface *ifp; |
979 | struct isis_area *area; | |
980 | struct isis_circuit *circuit; | |
981 | int i; | |
982 | ||
451fda4f | 983 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 984 | /* IF name */ |
a8b828f3 | 985 | vty_frame(vty, "interface %s\n", ifp->name); |
d62a17ae | 986 | write++; |
987 | /* IF desc */ | |
988 | if (ifp->desc) { | |
989 | vty_out(vty, " description %s\n", ifp->desc); | |
990 | write++; | |
991 | } | |
992 | /* ISIS Circuit */ | |
f4e14fdb | 993 | for (ALL_LIST_ELEMENTS_RO(isis->area_list, node, area)) { |
d62a17ae | 994 | circuit = |
995 | circuit_lookup_by_ifp(ifp, area->circuit_list); | |
996 | if (circuit == NULL) | |
997 | continue; | |
998 | if (circuit->ip_router) { | |
7c0cbd0e | 999 | vty_out(vty, " ip router " PROTO_NAME " %s\n", |
d62a17ae | 1000 | area->area_tag); |
1001 | write++; | |
1002 | } | |
1003 | if (circuit->is_passive) { | |
7c0cbd0e | 1004 | vty_out(vty, " " PROTO_NAME " passive\n"); |
d62a17ae | 1005 | write++; |
1006 | } | |
1007 | if (circuit->circ_type_config == CIRCUIT_T_P2P) { | |
7c0cbd0e | 1008 | vty_out(vty, " " PROTO_NAME " network point-to-point\n"); |
d62a17ae | 1009 | write++; |
1010 | } | |
1011 | if (circuit->ipv6_router) { | |
7c0cbd0e | 1012 | vty_out(vty, " ipv6 router " PROTO_NAME " %s\n", |
d62a17ae | 1013 | area->area_tag); |
1014 | write++; | |
1015 | } | |
1016 | ||
1017 | /* ISIS - circuit type */ | |
65f18157 CF |
1018 | if (!fabricd) { |
1019 | if (circuit->is_type == IS_LEVEL_1) { | |
1020 | vty_out(vty, " " PROTO_NAME " circuit-type level-1\n"); | |
d62a17ae | 1021 | write++; |
65f18157 CF |
1022 | } else { |
1023 | if (circuit->is_type == IS_LEVEL_2) { | |
1024 | vty_out(vty, | |
1025 | " " PROTO_NAME " circuit-type level-2-only\n"); | |
1026 | write++; | |
1027 | } | |
d62a17ae | 1028 | } |
1029 | } | |
1030 | ||
1031 | /* ISIS - CSNP interval */ | |
1032 | if (circuit->csnp_interval[0] | |
1033 | == circuit->csnp_interval[1]) { | |
1034 | if (circuit->csnp_interval[0] | |
1035 | != DEFAULT_CSNP_INTERVAL) { | |
7c0cbd0e | 1036 | vty_out(vty, " " PROTO_NAME " csnp-interval %d\n", |
d62a17ae | 1037 | circuit->csnp_interval[0]); |
1038 | write++; | |
1039 | } | |
1040 | } else { | |
1041 | for (i = 0; i < 2; i++) { | |
1042 | if (circuit->csnp_interval[i] | |
1043 | != DEFAULT_CSNP_INTERVAL) { | |
1044 | vty_out(vty, | |
7c0cbd0e | 1045 | " " PROTO_NAME " csnp-interval %d level-%d\n", |
d62a17ae | 1046 | circuit->csnp_interval |
1047 | [i], | |
1048 | i + 1); | |
1049 | write++; | |
1050 | } | |
1051 | } | |
1052 | } | |
1053 | ||
1054 | /* ISIS - PSNP interval */ | |
1055 | if (circuit->psnp_interval[0] | |
1056 | == circuit->psnp_interval[1]) { | |
1057 | if (circuit->psnp_interval[0] | |
1058 | != DEFAULT_PSNP_INTERVAL) { | |
7c0cbd0e | 1059 | vty_out(vty, " " PROTO_NAME " psnp-interval %d\n", |
d62a17ae | 1060 | circuit->psnp_interval[0]); |
1061 | write++; | |
1062 | } | |
1063 | } else { | |
1064 | for (i = 0; i < 2; i++) { | |
1065 | if (circuit->psnp_interval[i] | |
1066 | != DEFAULT_PSNP_INTERVAL) { | |
1067 | vty_out(vty, | |
7c0cbd0e | 1068 | " " PROTO_NAME " psnp-interval %d level-%d\n", |
d62a17ae | 1069 | circuit->psnp_interval |
1070 | [i], | |
1071 | i + 1); | |
1072 | write++; | |
1073 | } | |
1074 | } | |
1075 | } | |
1076 | ||
1077 | /* ISIS - Hello padding - Defaults to true so only | |
1078 | * display if false */ | |
1079 | if (circuit->pad_hellos == 0) { | |
7c0cbd0e | 1080 | vty_out(vty, " no " PROTO_NAME " hello padding\n"); |
d62a17ae | 1081 | write++; |
1082 | } | |
1083 | ||
58e5d748 CF |
1084 | if (circuit->disable_threeway_adj) { |
1085 | vty_out(vty, " no isis three-way-handshake\n"); | |
1086 | write++; | |
1087 | } | |
1088 | ||
d62a17ae | 1089 | /* ISIS - Hello interval */ |
1090 | if (circuit->hello_interval[0] | |
1091 | == circuit->hello_interval[1]) { | |
1092 | if (circuit->hello_interval[0] | |
1093 | != DEFAULT_HELLO_INTERVAL) { | |
1094 | vty_out(vty, | |
7c0cbd0e | 1095 | " " PROTO_NAME " hello-interval %d\n", |
d62a17ae | 1096 | circuit->hello_interval[0]); |
1097 | write++; | |
1098 | } | |
1099 | } else { | |
1100 | for (i = 0; i < 2; i++) { | |
1101 | if (circuit->hello_interval[i] | |
1102 | != DEFAULT_HELLO_INTERVAL) { | |
1103 | vty_out(vty, | |
7c0cbd0e | 1104 | " " PROTO_NAME " hello-interval %d level-%d\n", |
d62a17ae | 1105 | circuit->hello_interval |
1106 | [i], | |
1107 | i + 1); | |
1108 | write++; | |
1109 | } | |
1110 | } | |
1111 | } | |
1112 | ||
1113 | /* ISIS - Hello Multiplier */ | |
1114 | if (circuit->hello_multiplier[0] | |
1115 | == circuit->hello_multiplier[1]) { | |
1116 | if (circuit->hello_multiplier[0] | |
1117 | != DEFAULT_HELLO_MULTIPLIER) { | |
1118 | vty_out(vty, | |
7c0cbd0e | 1119 | " " PROTO_NAME " hello-multiplier %d\n", |
d62a17ae | 1120 | circuit->hello_multiplier[0]); |
1121 | write++; | |
1122 | } | |
1123 | } else { | |
1124 | for (i = 0; i < 2; i++) { | |
1125 | if (circuit->hello_multiplier[i] | |
1126 | != DEFAULT_HELLO_MULTIPLIER) { | |
1127 | vty_out(vty, | |
7c0cbd0e | 1128 | " " PROTO_NAME " hello-multiplier %d level-%d\n", |
d62a17ae | 1129 | circuit->hello_multiplier |
1130 | [i], | |
1131 | i + 1); | |
1132 | write++; | |
1133 | } | |
1134 | } | |
1135 | } | |
1136 | ||
1137 | /* ISIS - Priority */ | |
1138 | if (circuit->priority[0] == circuit->priority[1]) { | |
1139 | if (circuit->priority[0] != DEFAULT_PRIORITY) { | |
7c0cbd0e | 1140 | vty_out(vty, " " PROTO_NAME " priority %d\n", |
d62a17ae | 1141 | circuit->priority[0]); |
1142 | write++; | |
1143 | } | |
1144 | } else { | |
1145 | for (i = 0; i < 2; i++) { | |
1146 | if (circuit->priority[i] | |
1147 | != DEFAULT_PRIORITY) { | |
1148 | vty_out(vty, | |
7c0cbd0e | 1149 | " " PROTO_NAME " priority %d level-%d\n", |
d62a17ae | 1150 | circuit->priority[i], |
1151 | i + 1); | |
1152 | write++; | |
1153 | } | |
1154 | } | |
1155 | } | |
1156 | ||
1157 | /* ISIS - Metric */ | |
1158 | if (circuit->te_metric[0] == circuit->te_metric[1]) { | |
1159 | if (circuit->te_metric[0] | |
1160 | != DEFAULT_CIRCUIT_METRIC) { | |
7c0cbd0e | 1161 | vty_out(vty, " " PROTO_NAME " metric %d\n", |
d62a17ae | 1162 | circuit->te_metric[0]); |
1163 | write++; | |
1164 | } | |
1165 | } else { | |
1166 | for (i = 0; i < 2; i++) { | |
1167 | if (circuit->te_metric[i] | |
1168 | != DEFAULT_CIRCUIT_METRIC) { | |
1169 | vty_out(vty, | |
7c0cbd0e | 1170 | " " PROTO_NAME " metric %d level-%d\n", |
d62a17ae | 1171 | circuit->te_metric[i], |
1172 | i + 1); | |
1173 | write++; | |
1174 | } | |
1175 | } | |
1176 | } | |
1177 | if (circuit->passwd.type == ISIS_PASSWD_TYPE_HMAC_MD5) { | |
7c0cbd0e | 1178 | vty_out(vty, " " PROTO_NAME " password md5 %s\n", |
d62a17ae | 1179 | circuit->passwd.passwd); |
1180 | write++; | |
1181 | } else if (circuit->passwd.type | |
1182 | == ISIS_PASSWD_TYPE_CLEARTXT) { | |
7c0cbd0e | 1183 | vty_out(vty, " " PROTO_NAME " password clear %s\n", |
d62a17ae | 1184 | circuit->passwd.passwd); |
1185 | write++; | |
1186 | } | |
5489eb45 CF |
1187 | write += hook_call(isis_circuit_config_write, |
1188 | circuit, vty); | |
d62a17ae | 1189 | } |
a8b828f3 | 1190 | vty_endframe(vty, "!\n"); |
d62a17ae | 1191 | } |
1192 | ||
1193 | return write; | |
eb5d44eb | 1194 | } |
20600086 EDP |
1195 | #else |
1196 | int isis_interface_config_write(struct vty *vty) | |
1197 | { | |
1198 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
1199 | int write = 0; | |
1200 | struct interface *ifp; | |
1201 | struct isis_circuit *circuit; | |
1202 | struct lyd_node *dnode; | |
1203 | ||
1204 | FOR_ALL_INTERFACES (vrf, ifp) { | |
1205 | dnode = yang_dnode_get( | |
1206 | running_config->dnode, | |
1207 | "/frr-interface:lib/interface[name='%s'][vrf='%s']", | |
1208 | ifp->name, vrf->name); | |
1209 | if (dnode == NULL) | |
1210 | continue; | |
1211 | ||
1212 | write++; | |
1213 | nb_cli_show_dnode_cmds(vty, dnode, false); | |
1214 | circuit = circuit_scan_by_ifp(ifp); | |
1215 | if (circuit) | |
1216 | write += hook_call(isis_circuit_config_write, circuit, | |
1217 | vty); | |
1218 | } | |
1219 | return write; | |
1220 | } | |
1221 | #endif /* ifdef FABRICD */ | |
eb5d44eb | 1222 | |
d62a17ae | 1223 | struct isis_circuit *isis_circuit_create(struct isis_area *area, |
1224 | struct interface *ifp) | |
eb5d44eb | 1225 | { |
d62a17ae | 1226 | struct isis_circuit *circuit = circuit_scan_by_ifp(ifp); |
1227 | if (circuit && circuit->area) | |
1228 | return NULL; | |
1229 | circuit = isis_csm_state_change(ISIS_ENABLE, circuit, area); | |
1230 | if (circuit->state != C_STATE_CONF && circuit->state != C_STATE_UP) | |
1231 | return circuit; | |
1232 | isis_circuit_if_bind(circuit, ifp); | |
1233 | return circuit; | |
eb5d44eb | 1234 | } |
1235 | ||
d62a17ae | 1236 | void isis_circuit_af_set(struct isis_circuit *circuit, bool ip_router, |
1237 | bool ipv6_router) | |
eb5d44eb | 1238 | { |
d62a17ae | 1239 | struct isis_area *area = circuit->area; |
1240 | bool change = circuit->ip_router != ip_router | |
1241 | || circuit->ipv6_router != ipv6_router; | |
d62a17ae | 1242 | |
1243 | area->ip_circuits += ip_router - circuit->ip_router; | |
1244 | area->ipv6_circuits += ipv6_router - circuit->ipv6_router; | |
1245 | circuit->ip_router = ip_router; | |
1246 | circuit->ipv6_router = ipv6_router; | |
1247 | ||
1248 | if (!change) | |
1249 | return; | |
1250 | ||
1251 | circuit_update_nlpids(circuit); | |
1252 | ||
1253 | if (!ip_router && !ipv6_router) | |
1254 | isis_csm_state_change(ISIS_DISABLE, circuit, area); | |
d62a17ae | 1255 | else |
1256 | lsp_regenerate_schedule(circuit->area, circuit->is_type, 0); | |
3f045a08 | 1257 | } |
eb5d44eb | 1258 | |
64dd3ffe | 1259 | ferr_r isis_circuit_passive_set(struct isis_circuit *circuit, bool passive) |
3f045a08 | 1260 | { |
d62a17ae | 1261 | if (circuit->is_passive == passive) |
64dd3ffe | 1262 | return ferr_ok(); |
d62a17ae | 1263 | |
1264 | if (if_is_loopback(circuit->interface) && !passive) | |
64dd3ffe | 1265 | return ferr_cfg_invalid("loopback is always passive"); |
d62a17ae | 1266 | |
1267 | if (circuit->state != C_STATE_UP) { | |
1268 | circuit->is_passive = passive; | |
1269 | } else { | |
1270 | struct isis_area *area = circuit->area; | |
1271 | isis_csm_state_change(ISIS_DISABLE, circuit, area); | |
1272 | circuit->is_passive = passive; | |
1273 | isis_csm_state_change(ISIS_ENABLE, circuit, area); | |
1274 | } | |
1275 | ||
64dd3ffe | 1276 | return ferr_ok(); |
eb5d44eb | 1277 | } |
1278 | ||
64dd3ffe DL |
1279 | ferr_r isis_circuit_metric_set(struct isis_circuit *circuit, int level, |
1280 | int metric) | |
3f045a08 | 1281 | { |
d62a17ae | 1282 | assert(level == IS_LEVEL_1 || level == IS_LEVEL_2); |
1283 | if (metric > MAX_WIDE_LINK_METRIC) | |
64dd3ffe DL |
1284 | return ferr_cfg_invalid("metric %d too large for wide metric", |
1285 | metric); | |
d62a17ae | 1286 | if (circuit->area && circuit->area->oldmetric |
1287 | && metric > MAX_NARROW_LINK_METRIC) | |
64dd3ffe DL |
1288 | return ferr_cfg_invalid("metric %d too large for narrow metric", |
1289 | metric); | |
d62a17ae | 1290 | |
1291 | circuit->te_metric[level - 1] = metric; | |
1292 | circuit->metric[level - 1] = metric; | |
1293 | ||
1294 | if (circuit->area) | |
1295 | lsp_regenerate_schedule(circuit->area, level, 0); | |
64dd3ffe | 1296 | return ferr_ok(); |
eb5d44eb | 1297 | } |
1298 | ||
64dd3ffe | 1299 | ferr_r isis_circuit_passwd_unset(struct isis_circuit *circuit) |
eb5d44eb | 1300 | { |
d62a17ae | 1301 | memset(&circuit->passwd, 0, sizeof(circuit->passwd)); |
64dd3ffe | 1302 | return ferr_ok(); |
3f045a08 JB |
1303 | } |
1304 | ||
e28544ed QY |
1305 | ferr_r isis_circuit_passwd_set(struct isis_circuit *circuit, |
1306 | uint8_t passwd_type, const char *passwd) | |
3f045a08 | 1307 | { |
d62a17ae | 1308 | int len; |
f390d2c7 | 1309 | |
d62a17ae | 1310 | if (!passwd) |
64dd3ffe | 1311 | return ferr_code_bug("no circuit password given"); |
50c7d14a | 1312 | |
d62a17ae | 1313 | len = strlen(passwd); |
1314 | if (len > 254) | |
64dd3ffe DL |
1315 | return ferr_code_bug( |
1316 | "circuit password too long (max 254 chars)"); | |
f390d2c7 | 1317 | |
d62a17ae | 1318 | circuit->passwd.len = len; |
e28544ed QY |
1319 | strlcpy((char *)circuit->passwd.passwd, passwd, |
1320 | sizeof(circuit->passwd.passwd)); | |
d62a17ae | 1321 | circuit->passwd.type = passwd_type; |
64dd3ffe | 1322 | return ferr_ok(); |
eb5d44eb | 1323 | } |
1324 | ||
64dd3ffe DL |
1325 | ferr_r isis_circuit_passwd_cleartext_set(struct isis_circuit *circuit, |
1326 | const char *passwd) | |
eb5d44eb | 1327 | { |
d62a17ae | 1328 | return isis_circuit_passwd_set(circuit, ISIS_PASSWD_TYPE_CLEARTXT, |
1329 | passwd); | |
50c7d14a | 1330 | } |
f390d2c7 | 1331 | |
64dd3ffe DL |
1332 | ferr_r isis_circuit_passwd_hmac_md5_set(struct isis_circuit *circuit, |
1333 | const char *passwd) | |
50c7d14a | 1334 | { |
d62a17ae | 1335 | return isis_circuit_passwd_set(circuit, ISIS_PASSWD_TYPE_HMAC_MD5, |
1336 | passwd); | |
eb5d44eb | 1337 | } |
64dd3ffe | 1338 | |
3f045a08 | 1339 | struct cmd_node interface_node = { |
9d303b37 | 1340 | INTERFACE_NODE, "%s(config-if)# ", 1, |
eb5d44eb | 1341 | }; |
1342 | ||
d0820765 | 1343 | void isis_circuit_circ_type_set(struct isis_circuit *circuit, int circ_type) |
3f045a08 | 1344 | { |
64dd3ffe | 1345 | if (circuit->circ_type == circ_type) |
d0820765 | 1346 | return; |
d62a17ae | 1347 | |
d62a17ae | 1348 | if (circuit->state != C_STATE_UP) { |
1349 | circuit->circ_type = circ_type; | |
1350 | circuit->circ_type_config = circ_type; | |
1351 | } else { | |
1352 | struct isis_area *area = circuit->area; | |
d62a17ae | 1353 | |
1354 | isis_csm_state_change(ISIS_DISABLE, circuit, area); | |
1355 | circuit->circ_type = circ_type; | |
1356 | circuit->circ_type_config = circ_type; | |
1357 | isis_csm_state_change(ISIS_ENABLE, circuit, area); | |
1358 | } | |
3f045a08 JB |
1359 | } |
1360 | ||
d62a17ae | 1361 | int isis_circuit_mt_enabled_set(struct isis_circuit *circuit, uint16_t mtid, |
1362 | bool enabled) | |
064f4896 | 1363 | { |
d62a17ae | 1364 | struct isis_circuit_mt_setting *setting; |
064f4896 | 1365 | |
d62a17ae | 1366 | setting = circuit_get_mt_setting(circuit, mtid); |
1367 | if (setting->enabled != enabled) { | |
1368 | setting->enabled = enabled; | |
1369 | lsp_regenerate_schedule(circuit->area, IS_LEVEL_1 | IS_LEVEL_2, | |
1370 | 0); | |
1371 | } | |
064f4896 | 1372 | |
d62a17ae | 1373 | return CMD_SUCCESS; |
064f4896 CF |
1374 | } |
1375 | ||
d62a17ae | 1376 | int isis_if_new_hook(struct interface *ifp) |
eb5d44eb | 1377 | { |
d62a17ae | 1378 | return 0; |
eb5d44eb | 1379 | } |
1380 | ||
d62a17ae | 1381 | int isis_if_delete_hook(struct interface *ifp) |
eb5d44eb | 1382 | { |
d62a17ae | 1383 | struct isis_circuit *circuit; |
1384 | /* Clean up the circuit data */ | |
1385 | if (ifp && ifp->info) { | |
1386 | circuit = ifp->info; | |
1387 | isis_csm_state_change(IF_DOWN_FROM_Z, circuit, circuit->area); | |
1388 | isis_csm_state_change(ISIS_DISABLE, circuit, circuit->area); | |
1389 | } | |
1390 | ||
1391 | return 0; | |
eb5d44eb | 1392 | } |
1393 | ||
138c5a74 DS |
1394 | static int isis_ifp_create(struct interface *ifp) |
1395 | { | |
ef7bd2a3 DS |
1396 | if (if_is_operative(ifp)) |
1397 | isis_csm_state_change(IF_UP_FROM_Z, circuit_scan_by_ifp(ifp), | |
1398 | ifp); | |
1399 | ||
1400 | hook_call(isis_if_new_hook, ifp); | |
1401 | ||
138c5a74 DS |
1402 | return 0; |
1403 | } | |
1404 | ||
1405 | static int isis_ifp_up(struct interface *ifp) | |
1406 | { | |
ddbf3e60 DS |
1407 | isis_csm_state_change(IF_UP_FROM_Z, circuit_scan_by_ifp(ifp), ifp); |
1408 | ||
138c5a74 DS |
1409 | return 0; |
1410 | } | |
1411 | ||
1412 | static int isis_ifp_down(struct interface *ifp) | |
1413 | { | |
1414 | return 0; | |
1415 | } | |
1416 | ||
1417 | static int isis_ifp_destroy(struct interface *ifp) | |
1418 | { | |
1419 | return 0; | |
1420 | } | |
1421 | ||
4d762f26 | 1422 | void isis_circuit_init(void) |
eb5d44eb | 1423 | { |
d62a17ae | 1424 | /* Initialize Zebra interface data structure */ |
ce19a04a DL |
1425 | hook_register_prio(if_add, 0, isis_if_new_hook); |
1426 | hook_register_prio(if_del, 0, isis_if_delete_hook); | |
eb5d44eb | 1427 | |
d62a17ae | 1428 | /* Install interface node */ |
1429 | install_node(&interface_node, isis_interface_config_write); | |
1430 | if_cmd_init(); | |
138c5a74 DS |
1431 | if_zapi_callbacks(isis_ifp_create, isis_ifp_up, |
1432 | isis_ifp_down, isis_ifp_destroy); | |
eb5d44eb | 1433 | } |