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6833ae01 | 1 | /* Zebra PW code |
2 | * Copyright (C) 2016 Volta Networks, Inc. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | * General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; see the file COPYING; if not, write to the | |
16 | * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, | |
17 | * MA 02110-1301 USA | |
18 | */ | |
19 | ||
20 | #include <zebra.h> | |
21 | ||
22 | #include "log.h" | |
23 | #include "memory.h" | |
24 | #include "thread.h" | |
2dd0d726 | 25 | #include "command.h" |
6833ae01 | 26 | #include "vrf.h" |
27 | ||
28 | #include "zebra/debug.h" | |
29 | #include "zebra/rib.h" | |
30 | #include "zebra/zserv.h" | |
731a75fe | 31 | #include "zebra/zebra_rnh.h" |
6833ae01 | 32 | #include "zebra/zebra_vrf.h" |
33 | #include "zebra/zebra_pw.h" | |
34 | ||
35 | DEFINE_MTYPE_STATIC(LIB, PW, "Pseudowire") | |
36 | ||
2dd0d726 RW |
37 | DEFINE_QOBJ_TYPE(zebra_pw) |
38 | ||
6833ae01 | 39 | DEFINE_HOOK(pw_install, (struct zebra_pw * pw), (pw)) |
40 | DEFINE_HOOK(pw_uninstall, (struct zebra_pw * pw), (pw)) | |
41 | ||
69965f53 DL |
42 | #define MPLS_NO_LABEL MPLS_INVALID_LABEL |
43 | ||
6833ae01 | 44 | extern struct zebra_t zebrad; |
45 | ||
2dd0d726 | 46 | static int zebra_pw_enabled(struct zebra_pw *); |
6833ae01 | 47 | static void zebra_pw_install(struct zebra_pw *); |
48 | static void zebra_pw_uninstall(struct zebra_pw *); | |
49 | static int zebra_pw_install_retry(struct thread *); | |
50 | static int zebra_pw_check_reachability(struct zebra_pw *); | |
51 | static void zebra_pw_update_status(struct zebra_pw *, int); | |
52 | ||
53 | static inline int zebra_pw_compare(const struct zebra_pw *a, | |
54 | const struct zebra_pw *b) | |
55 | { | |
56 | return (strcmp(a->ifname, b->ifname)); | |
57 | } | |
58 | ||
2dd0d726 RW |
59 | RB_GENERATE(zebra_pw_head, zebra_pw, pw_entry, zebra_pw_compare) |
60 | RB_GENERATE(zebra_static_pw_head, zebra_pw, static_pw_entry, zebra_pw_compare) | |
6833ae01 | 61 | |
62 | struct zebra_pw *zebra_pw_add(struct zebra_vrf *zvrf, const char *ifname, | |
63 | uint8_t protocol, struct zserv *client) | |
64 | { | |
65 | struct zebra_pw *pw; | |
66 | ||
67 | if (IS_ZEBRA_DEBUG_PW) | |
68 | zlog_debug("%u: adding pseudowire %s protocol %s", | |
69 | zvrf_id(zvrf), ifname, zebra_route_string(protocol)); | |
70 | ||
71 | pw = XCALLOC(MTYPE_PW, sizeof(*pw)); | |
72 | strlcpy(pw->ifname, ifname, sizeof(pw->ifname)); | |
73 | pw->protocol = protocol; | |
74 | pw->vrf_id = zvrf_id(zvrf); | |
75 | pw->client = client; | |
3c5b5220 | 76 | pw->status = PW_STATUS_DOWN; |
2dd0d726 RW |
77 | pw->local_label = MPLS_NO_LABEL; |
78 | pw->remote_label = MPLS_NO_LABEL; | |
79 | pw->flags = F_PSEUDOWIRE_CWORD; | |
6833ae01 | 80 | |
81 | RB_INSERT(zebra_pw_head, &zvrf->pseudowires, pw); | |
2dd0d726 RW |
82 | if (pw->protocol == ZEBRA_ROUTE_STATIC) { |
83 | RB_INSERT(zebra_static_pw_head, &zvrf->static_pseudowires, pw); | |
84 | QOBJ_REG(pw, zebra_pw); | |
85 | } | |
6833ae01 | 86 | |
87 | return pw; | |
88 | } | |
89 | ||
90 | void zebra_pw_del(struct zebra_vrf *zvrf, struct zebra_pw *pw) | |
91 | { | |
92 | if (IS_ZEBRA_DEBUG_PW) | |
93 | zlog_debug("%u: deleting pseudowire %s protocol %s", pw->vrf_id, | |
94 | pw->ifname, zebra_route_string(pw->protocol)); | |
95 | ||
731a75fe RW |
96 | /* remove nexthop tracking */ |
97 | zebra_deregister_rnh_pseudowire(pw->vrf_id, pw); | |
98 | ||
6833ae01 | 99 | /* uninstall */ |
100 | if (pw->status == PW_STATUS_UP) | |
101 | hook_call(pw_uninstall, pw); | |
102 | else if (pw->install_retry_timer) | |
103 | THREAD_TIMER_OFF(pw->install_retry_timer); | |
104 | ||
105 | /* unlink and release memory */ | |
106 | RB_REMOVE(zebra_pw_head, &zvrf->pseudowires, pw); | |
2dd0d726 RW |
107 | if (pw->protocol == ZEBRA_ROUTE_STATIC) |
108 | RB_REMOVE(zebra_static_pw_head, &zvrf->static_pseudowires, pw); | |
6833ae01 | 109 | XFREE(MTYPE_PW, pw); |
110 | } | |
111 | ||
112 | void zebra_pw_change(struct zebra_pw *pw, ifindex_t ifindex, int type, int af, | |
113 | union g_addr *nexthop, uint32_t local_label, | |
114 | uint32_t remote_label, uint8_t flags, | |
115 | union pw_protocol_fields *data) | |
116 | { | |
731a75fe RW |
117 | zebra_deregister_rnh_pseudowire(pw->vrf_id, pw); |
118 | ||
6833ae01 | 119 | pw->ifindex = ifindex; |
120 | pw->type = type; | |
121 | pw->af = af; | |
122 | pw->nexthop = *nexthop; | |
123 | pw->local_label = local_label; | |
124 | pw->remote_label = remote_label; | |
125 | pw->flags = flags; | |
126 | pw->data = *data; | |
127 | ||
2dd0d726 | 128 | if (zebra_pw_enabled(pw)) |
731a75fe | 129 | zebra_register_rnh_pseudowire(pw->vrf_id, pw); |
6833ae01 | 130 | else |
131 | zebra_pw_uninstall(pw); | |
132 | } | |
133 | ||
134 | struct zebra_pw *zebra_pw_find(struct zebra_vrf *zvrf, const char *ifname) | |
135 | { | |
136 | struct zebra_pw pw; | |
137 | strlcpy(pw.ifname, ifname, sizeof(pw.ifname)); | |
138 | return (RB_FIND(zebra_pw_head, &zvrf->pseudowires, &pw)); | |
139 | } | |
140 | ||
2dd0d726 RW |
141 | static int zebra_pw_enabled(struct zebra_pw *pw) |
142 | { | |
143 | if (pw->protocol == ZEBRA_ROUTE_STATIC) { | |
144 | if (pw->local_label == MPLS_NO_LABEL | |
145 | || pw->remote_label == MPLS_NO_LABEL || pw->af == AF_UNSPEC) | |
146 | return 0; | |
147 | return 1; | |
148 | } else | |
149 | return pw->enabled; | |
150 | } | |
151 | ||
6833ae01 | 152 | void zebra_pw_update(struct zebra_pw *pw) |
153 | { | |
154 | if (zebra_pw_check_reachability(pw) < 0) { | |
155 | zebra_pw_uninstall(pw); | |
731a75fe | 156 | /* wait for NHT and try again later */ |
6833ae01 | 157 | } else { |
158 | /* | |
159 | * Install or reinstall the pseudowire (e.g. to update | |
160 | * parameters like the nexthop or the use of the control word). | |
161 | */ | |
162 | zebra_pw_install(pw); | |
163 | } | |
164 | } | |
165 | ||
166 | static void zebra_pw_install(struct zebra_pw *pw) | |
167 | { | |
168 | if (IS_ZEBRA_DEBUG_PW) | |
169 | zlog_debug("%u: installing pseudowire %s protocol %s", | |
170 | pw->vrf_id, pw->ifname, | |
171 | zebra_route_string(pw->protocol)); | |
172 | ||
173 | if (hook_call(pw_install, pw)) { | |
174 | zebra_pw_install_failure(pw); | |
175 | return; | |
176 | } | |
177 | ||
178 | if (pw->status == PW_STATUS_DOWN) | |
179 | zebra_pw_update_status(pw, PW_STATUS_UP); | |
180 | } | |
181 | ||
182 | static void zebra_pw_uninstall(struct zebra_pw *pw) | |
183 | { | |
184 | if (pw->status == PW_STATUS_DOWN) | |
185 | return; | |
186 | ||
187 | if (IS_ZEBRA_DEBUG_PW) | |
188 | zlog_debug("%u: uninstalling pseudowire %s protocol %s", | |
189 | pw->vrf_id, pw->ifname, | |
190 | zebra_route_string(pw->protocol)); | |
191 | ||
192 | /* ignore any possible error */ | |
193 | hook_call(pw_uninstall, pw); | |
194 | ||
2dd0d726 | 195 | if (zebra_pw_enabled(pw)) |
6833ae01 | 196 | zebra_pw_update_status(pw, PW_STATUS_DOWN); |
197 | } | |
198 | ||
199 | /* | |
200 | * Installation of the pseudowire in the kernel or hardware has failed. This | |
201 | * function will notify the pseudowire client about the failure and schedule | |
202 | * to retry the installation later. This function can be called by an external | |
203 | * agent that performs the pseudowire installation in an asynchronous way. | |
204 | */ | |
205 | void zebra_pw_install_failure(struct zebra_pw *pw) | |
206 | { | |
207 | if (IS_ZEBRA_DEBUG_PW) | |
208 | zlog_debug( | |
209 | "%u: failed installing pseudowire %s, " | |
210 | "scheduling retry in %u seconds", | |
211 | pw->vrf_id, pw->ifname, PW_INSTALL_RETRY_INTERVAL); | |
212 | ||
213 | /* schedule to retry later */ | |
214 | THREAD_TIMER_OFF(pw->install_retry_timer); | |
69965f53 DL |
215 | thread_add_timer(zebrad.master, zebra_pw_install_retry, pw, |
216 | PW_INSTALL_RETRY_INTERVAL, &pw->install_retry_timer); | |
6833ae01 | 217 | |
218 | zebra_pw_update_status(pw, PW_STATUS_DOWN); | |
219 | } | |
220 | ||
221 | static int zebra_pw_install_retry(struct thread *thread) | |
222 | { | |
223 | struct zebra_pw *pw = THREAD_ARG(thread); | |
224 | ||
225 | pw->install_retry_timer = NULL; | |
226 | zebra_pw_install(pw); | |
227 | ||
228 | return 0; | |
229 | } | |
230 | ||
231 | static void zebra_pw_update_status(struct zebra_pw *pw, int status) | |
232 | { | |
233 | pw->status = status; | |
234 | if (pw->client) | |
235 | zsend_pw_update(pw->client, pw); | |
236 | } | |
237 | ||
238 | static int zebra_pw_check_reachability(struct zebra_pw *pw) | |
239 | { | |
69965f53 DL |
240 | struct route_entry *re; |
241 | struct nexthop *nexthop; | |
6833ae01 | 242 | |
243 | /* TODO: consider GRE/L2TPv3 tunnels in addition to MPLS LSPs */ | |
244 | ||
245 | /* find route to the remote end of the pseudowire */ | |
69965f53 DL |
246 | re = rib_match(family2afi(pw->af), SAFI_UNICAST, pw->vrf_id, |
247 | &pw->nexthop, NULL); | |
248 | if (!re) { | |
6833ae01 | 249 | if (IS_ZEBRA_DEBUG_PW) |
250 | zlog_warn("%s: no route found for %s", __func__, | |
251 | pw->ifname); | |
252 | return -1; | |
253 | } | |
254 | ||
255 | /* | |
256 | * Need to ensure that there's a label binding for all nexthops. | |
257 | * Otherwise, ECMP for this route could render the pseudowire unusable. | |
258 | */ | |
7ee30f28 | 259 | for (ALL_NEXTHOPS(re->ng, nexthop)) { |
6833ae01 | 260 | if (!nexthop->nh_label) { |
261 | if (IS_ZEBRA_DEBUG_PW) | |
262 | zlog_warn("%s: unlabeled route for %s", | |
263 | __func__, pw->ifname); | |
264 | return -1; | |
265 | } | |
266 | } | |
267 | ||
268 | return 0; | |
269 | } | |
270 | ||
271 | void zebra_pw_client_close(struct zserv *client) | |
272 | { | |
273 | struct vrf *vrf; | |
274 | struct zebra_vrf *zvrf; | |
275 | struct zebra_pw *pw, *tmp; | |
276 | ||
a2addae8 | 277 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) { |
6833ae01 | 278 | zvrf = vrf->info; |
a2addae8 | 279 | RB_FOREACH_SAFE (pw, zebra_pw_head, &zvrf->pseudowires, tmp) { |
6833ae01 | 280 | if (pw->client != client) |
281 | continue; | |
282 | zebra_pw_del(zvrf, pw); | |
283 | } | |
284 | } | |
285 | } | |
286 | ||
287 | void zebra_pw_init(struct zebra_vrf *zvrf) | |
288 | { | |
69965f53 DL |
289 | RB_INIT(zebra_pw_head, &zvrf->pseudowires); |
290 | RB_INIT(zebra_static_pw_head, &zvrf->static_pseudowires); | |
6833ae01 | 291 | } |
292 | ||
293 | void zebra_pw_exit(struct zebra_vrf *zvrf) | |
294 | { | |
295 | struct zebra_pw *pw; | |
296 | ||
55cd0f61 DS |
297 | while (!RB_EMPTY(zebra_pw_head, &zvrf->pseudowires)) { |
298 | pw = RB_ROOT(zebra_pw_head, &zvrf->pseudowires); | |
299 | ||
6833ae01 | 300 | zebra_pw_del(zvrf, pw); |
55cd0f61 | 301 | } |
6833ae01 | 302 | } |
2dd0d726 RW |
303 | |
304 | DEFUN_NOSH (pseudowire_if, | |
305 | pseudowire_if_cmd, | |
306 | "[no] pseudowire IFNAME", | |
307 | NO_STR | |
308 | "Static pseudowire configuration\n" | |
309 | "Pseudowire name\n") | |
310 | { | |
311 | struct zebra_vrf *zvrf; | |
312 | struct zebra_pw *pw; | |
313 | int idx = 0; | |
314 | const char *ifname; | |
315 | ||
316 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
317 | if (!zvrf) | |
318 | return CMD_WARNING; | |
319 | ||
320 | argv_find(argv, argc, "IFNAME", &idx); | |
321 | ifname = argv[idx]->arg; | |
322 | pw = zebra_pw_find(zvrf, ifname); | |
323 | if (pw && pw->protocol != ZEBRA_ROUTE_STATIC) { | |
69965f53 | 324 | vty_out(vty, "%% Pseudowire is not static\n"); |
2dd0d726 RW |
325 | return CMD_WARNING; |
326 | } | |
327 | ||
328 | if (argv_find(argv, argc, "no", &idx)) { | |
329 | if (!pw) | |
330 | return CMD_SUCCESS; | |
331 | zebra_pw_del(zvrf, pw); | |
0af35d90 | 332 | return CMD_SUCCESS; |
2dd0d726 RW |
333 | } |
334 | ||
335 | if (!pw) | |
336 | pw = zebra_pw_add(zvrf, ifname, ZEBRA_ROUTE_STATIC, NULL); | |
337 | VTY_PUSH_CONTEXT(PW_NODE, pw); | |
338 | ||
339 | return CMD_SUCCESS; | |
340 | } | |
341 | ||
342 | DEFUN (pseudowire_labels, | |
343 | pseudowire_labels_cmd, | |
344 | "[no] mpls label local (16-1048575) remote (16-1048575)", | |
345 | NO_STR | |
346 | "MPLS L2VPN PW command\n" | |
347 | "MPLS L2VPN static labels\n" | |
348 | "Local pseudowire label\n" | |
349 | "Local pseudowire label\n" | |
350 | "Remote pseudowire label\n" | |
351 | "Remote pseudowire label\n") | |
352 | { | |
353 | VTY_DECLVAR_CONTEXT(zebra_pw, pw); | |
354 | int idx = 0; | |
355 | mpls_label_t local_label, remote_label; | |
356 | ||
357 | if (argv_find(argv, argc, "no", &idx)) { | |
358 | local_label = MPLS_NO_LABEL; | |
359 | remote_label = MPLS_NO_LABEL; | |
360 | } else { | |
361 | argv_find(argv, argc, "local", &idx); | |
362 | local_label = atoi(argv[idx + 1]->arg); | |
363 | argv_find(argv, argc, "remote", &idx); | |
364 | remote_label = atoi(argv[idx + 1]->arg); | |
365 | } | |
366 | ||
367 | zebra_pw_change(pw, pw->ifindex, pw->type, pw->af, &pw->nexthop, | |
368 | local_label, remote_label, pw->flags, &pw->data); | |
369 | ||
370 | return CMD_SUCCESS; | |
371 | } | |
372 | ||
373 | DEFUN (pseudowire_neighbor, | |
374 | pseudowire_neighbor_cmd, | |
375 | "[no] neighbor <A.B.C.D|X:X::X:X>", | |
376 | NO_STR | |
377 | "Specify the IPv4 or IPv6 address of the remote endpoint\n" | |
378 | "IPv4 address\n" | |
379 | "IPv6 address\n") | |
380 | { | |
381 | VTY_DECLVAR_CONTEXT(zebra_pw, pw); | |
382 | int idx = 0; | |
383 | const char *address; | |
384 | int af; | |
385 | union g_addr nexthop; | |
386 | ||
387 | af = AF_UNSPEC; | |
388 | memset(&nexthop, 0, sizeof(nexthop)); | |
389 | ||
390 | if (!argv_find(argv, argc, "no", &idx)) { | |
391 | argv_find(argv, argc, "neighbor", &idx); | |
392 | address = argv[idx + 1]->arg; | |
393 | ||
394 | if (inet_pton(AF_INET, address, &nexthop.ipv4) == 1) | |
395 | af = AF_INET; | |
396 | else if (inet_pton(AF_INET6, address, &nexthop.ipv6) == 1) | |
397 | af = AF_INET6; | |
398 | else { | |
69965f53 | 399 | vty_out(vty, "%% Malformed address\n"); |
2dd0d726 RW |
400 | return CMD_WARNING; |
401 | } | |
402 | } | |
403 | ||
404 | zebra_pw_change(pw, pw->ifindex, pw->type, af, &nexthop, | |
405 | pw->local_label, pw->remote_label, pw->flags, | |
406 | &pw->data); | |
407 | ||
408 | return CMD_SUCCESS; | |
409 | } | |
410 | ||
411 | DEFUN (pseudowire_control_word, | |
412 | pseudowire_control_word_cmd, | |
413 | "[no] control-word <exclude|include>", | |
414 | NO_STR | |
415 | "Control-word options\n" | |
416 | "Exclude control-word in pseudowire packets\n" | |
417 | "Include control-word in pseudowire packets\n") | |
418 | { | |
419 | VTY_DECLVAR_CONTEXT(zebra_pw, pw); | |
420 | int idx = 0; | |
421 | uint8_t flags = 0; | |
422 | ||
423 | if (argv_find(argv, argc, "no", &idx)) | |
424 | flags = F_PSEUDOWIRE_CWORD; | |
425 | else { | |
426 | argv_find(argv, argc, "control-word", &idx); | |
427 | if (argv[idx + 1]->text[0] == 'i') | |
428 | flags = F_PSEUDOWIRE_CWORD; | |
429 | } | |
430 | ||
431 | zebra_pw_change(pw, pw->ifindex, pw->type, pw->af, &pw->nexthop, | |
432 | pw->local_label, pw->remote_label, flags, &pw->data); | |
433 | ||
434 | return CMD_SUCCESS; | |
435 | } | |
436 | ||
437 | DEFUN (show_pseudowires, | |
438 | show_pseudowires_cmd, | |
d261dd7e | 439 | "show mpls pseudowires", |
2dd0d726 | 440 | SHOW_STR |
d261dd7e | 441 | MPLS_STR |
efd7904e | 442 | "Pseudowires\n") |
2dd0d726 RW |
443 | { |
444 | struct zebra_vrf *zvrf; | |
445 | struct zebra_pw *pw; | |
446 | ||
447 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
448 | if (!zvrf) | |
449 | return 0; | |
450 | ||
69965f53 DL |
451 | vty_out(vty, "%-16s %-24s %-12s %-8s %-10s\n", "Interface", "Neighbor", |
452 | "Labels", "Protocol", "Status"); | |
2dd0d726 | 453 | |
a2addae8 | 454 | RB_FOREACH (pw, zebra_pw_head, &zvrf->pseudowires) { |
2dd0d726 RW |
455 | char buf_nbr[INET6_ADDRSTRLEN]; |
456 | char buf_labels[64]; | |
457 | ||
458 | inet_ntop(pw->af, &pw->nexthop, buf_nbr, sizeof(buf_nbr)); | |
459 | ||
460 | if (pw->local_label != MPLS_NO_LABEL | |
461 | && pw->remote_label != MPLS_NO_LABEL) | |
462 | snprintf(buf_labels, sizeof(buf_labels), "%u/%u", | |
463 | pw->local_label, pw->remote_label); | |
464 | else | |
465 | snprintf(buf_labels, sizeof(buf_labels), "-"); | |
466 | ||
69965f53 | 467 | vty_out(vty, "%-16s %-24s %-12s %-8s %-10s\n", pw->ifname, |
2dd0d726 RW |
468 | (pw->af != AF_UNSPEC) ? buf_nbr : "-", buf_labels, |
469 | zebra_route_string(pw->protocol), | |
470 | (zebra_pw_enabled(pw) && pw->status == PW_STATUS_UP) | |
471 | ? "UP" | |
69965f53 | 472 | : "DOWN"); |
2dd0d726 RW |
473 | } |
474 | ||
475 | return CMD_SUCCESS; | |
476 | } | |
477 | ||
478 | /* Pseudowire configuration write function. */ | |
479 | static int zebra_pw_config(struct vty *vty) | |
480 | { | |
481 | int write = 0; | |
482 | struct zebra_vrf *zvrf; | |
483 | struct zebra_pw *pw; | |
484 | ||
485 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
486 | if (!zvrf) | |
487 | return 0; | |
488 | ||
a2addae8 | 489 | RB_FOREACH (pw, zebra_static_pw_head, &zvrf->static_pseudowires) { |
69965f53 | 490 | vty_out(vty, "pseudowire %s\n", pw->ifname); |
2dd0d726 RW |
491 | if (pw->local_label != MPLS_NO_LABEL |
492 | && pw->remote_label != MPLS_NO_LABEL) | |
69965f53 DL |
493 | vty_out(vty, " mpls label local %u remote %u\n", |
494 | pw->local_label, pw->remote_label); | |
2dd0d726 RW |
495 | else |
496 | vty_out(vty, | |
497 | " ! Incomplete config, specify the static " | |
69965f53 | 498 | "MPLS labels\n"); |
2dd0d726 RW |
499 | |
500 | if (pw->af != AF_UNSPEC) { | |
501 | char buf[INET6_ADDRSTRLEN]; | |
502 | inet_ntop(pw->af, &pw->nexthop, buf, sizeof(buf)); | |
69965f53 | 503 | vty_out(vty, " neighbor %s\n", buf); |
2dd0d726 RW |
504 | } else |
505 | vty_out(vty, | |
506 | " ! Incomplete config, specify a neighbor " | |
69965f53 | 507 | "address\n"); |
2dd0d726 RW |
508 | |
509 | if (!(pw->flags & F_PSEUDOWIRE_CWORD)) | |
69965f53 | 510 | vty_out(vty, " control-word exclude\n"); |
2dd0d726 | 511 | |
69965f53 | 512 | vty_out(vty, "!\n"); |
2dd0d726 RW |
513 | write = 1; |
514 | } | |
515 | ||
516 | return write; | |
517 | } | |
518 | ||
519 | static struct cmd_node pw_node = { | |
520 | PW_NODE, "%s(config-pw)# ", 1, | |
521 | }; | |
522 | ||
523 | void zebra_pw_vty_init(void) | |
524 | { | |
525 | install_node(&pw_node, zebra_pw_config); | |
526 | install_default(PW_NODE); | |
527 | ||
528 | install_element(CONFIG_NODE, &pseudowire_if_cmd); | |
529 | install_element(PW_NODE, &pseudowire_labels_cmd); | |
530 | install_element(PW_NODE, &pseudowire_neighbor_cmd); | |
531 | install_element(PW_NODE, &pseudowire_control_word_cmd); | |
532 | ||
533 | install_element(VIEW_NODE, &show_pseudowires_cmd); | |
534 | } |