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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" | |
3801e764 | 30 | #include "zebra/zebra_router.h" |
bf094f69 | 31 | #include "zebra/zapi_msg.h" |
731a75fe | 32 | #include "zebra/zebra_rnh.h" |
6833ae01 | 33 | #include "zebra/zebra_vrf.h" |
34 | #include "zebra/zebra_pw.h" | |
35 | ||
36 | DEFINE_MTYPE_STATIC(LIB, PW, "Pseudowire") | |
37 | ||
2dd0d726 RW |
38 | DEFINE_QOBJ_TYPE(zebra_pw) |
39 | ||
6833ae01 | 40 | DEFINE_HOOK(pw_install, (struct zebra_pw * pw), (pw)) |
41 | DEFINE_HOOK(pw_uninstall, (struct zebra_pw * pw), (pw)) | |
42 | ||
69965f53 DL |
43 | #define MPLS_NO_LABEL MPLS_INVALID_LABEL |
44 | ||
2dd0d726 | 45 | static int zebra_pw_enabled(struct zebra_pw *); |
6833ae01 | 46 | static void zebra_pw_install(struct zebra_pw *); |
47 | static void zebra_pw_uninstall(struct zebra_pw *); | |
48 | static int zebra_pw_install_retry(struct thread *); | |
49 | static int zebra_pw_check_reachability(struct zebra_pw *); | |
50 | static void zebra_pw_update_status(struct zebra_pw *, int); | |
51 | ||
52 | static inline int zebra_pw_compare(const struct zebra_pw *a, | |
53 | const struct zebra_pw *b) | |
54 | { | |
55 | return (strcmp(a->ifname, b->ifname)); | |
56 | } | |
57 | ||
2dd0d726 RW |
58 | RB_GENERATE(zebra_pw_head, zebra_pw, pw_entry, zebra_pw_compare) |
59 | RB_GENERATE(zebra_static_pw_head, zebra_pw, static_pw_entry, zebra_pw_compare) | |
6833ae01 | 60 | |
61 | struct zebra_pw *zebra_pw_add(struct zebra_vrf *zvrf, const char *ifname, | |
62 | uint8_t protocol, struct zserv *client) | |
63 | { | |
64 | struct zebra_pw *pw; | |
65 | ||
66 | if (IS_ZEBRA_DEBUG_PW) | |
67 | zlog_debug("%u: adding pseudowire %s protocol %s", | |
68 | zvrf_id(zvrf), ifname, zebra_route_string(protocol)); | |
69 | ||
70 | pw = XCALLOC(MTYPE_PW, sizeof(*pw)); | |
71 | strlcpy(pw->ifname, ifname, sizeof(pw->ifname)); | |
72 | pw->protocol = protocol; | |
73 | pw->vrf_id = zvrf_id(zvrf); | |
74 | pw->client = client; | |
3c5b5220 | 75 | pw->status = PW_STATUS_DOWN; |
2dd0d726 RW |
76 | pw->local_label = MPLS_NO_LABEL; |
77 | pw->remote_label = MPLS_NO_LABEL; | |
78 | pw->flags = F_PSEUDOWIRE_CWORD; | |
6833ae01 | 79 | |
80 | RB_INSERT(zebra_pw_head, &zvrf->pseudowires, pw); | |
2dd0d726 RW |
81 | if (pw->protocol == ZEBRA_ROUTE_STATIC) { |
82 | RB_INSERT(zebra_static_pw_head, &zvrf->static_pseudowires, pw); | |
83 | QOBJ_REG(pw, zebra_pw); | |
84 | } | |
6833ae01 | 85 | |
86 | return pw; | |
87 | } | |
88 | ||
89 | void zebra_pw_del(struct zebra_vrf *zvrf, struct zebra_pw *pw) | |
90 | { | |
91 | if (IS_ZEBRA_DEBUG_PW) | |
92 | zlog_debug("%u: deleting pseudowire %s protocol %s", pw->vrf_id, | |
93 | pw->ifname, zebra_route_string(pw->protocol)); | |
94 | ||
731a75fe RW |
95 | /* remove nexthop tracking */ |
96 | zebra_deregister_rnh_pseudowire(pw->vrf_id, pw); | |
97 | ||
6833ae01 | 98 | /* uninstall */ |
97d8d05a | 99 | if (pw->status == PW_STATUS_UP) { |
6833ae01 | 100 | hook_call(pw_uninstall, pw); |
97d8d05a MS |
101 | dplane_pw_uninstall(pw); |
102 | } else if (pw->install_retry_timer) | |
6833ae01 | 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); | |
72b1ee34 | 156 | zebra_pw_install_failure(pw); |
731a75fe | 157 | /* wait for NHT and try again later */ |
6833ae01 | 158 | } else { |
159 | /* | |
160 | * Install or reinstall the pseudowire (e.g. to update | |
161 | * parameters like the nexthop or the use of the control word). | |
162 | */ | |
163 | zebra_pw_install(pw); | |
164 | } | |
165 | } | |
166 | ||
167 | static void zebra_pw_install(struct zebra_pw *pw) | |
168 | { | |
169 | if (IS_ZEBRA_DEBUG_PW) | |
170 | zlog_debug("%u: installing pseudowire %s protocol %s", | |
171 | pw->vrf_id, pw->ifname, | |
172 | zebra_route_string(pw->protocol)); | |
173 | ||
97d8d05a MS |
174 | hook_call(pw_install, pw); |
175 | if (dplane_pw_install(pw) == ZEBRA_DPLANE_REQUEST_FAILURE) { | |
6833ae01 | 176 | zebra_pw_install_failure(pw); |
177 | return; | |
178 | } | |
179 | ||
180 | if (pw->status == PW_STATUS_DOWN) | |
181 | zebra_pw_update_status(pw, PW_STATUS_UP); | |
182 | } | |
183 | ||
184 | static void zebra_pw_uninstall(struct zebra_pw *pw) | |
185 | { | |
186 | if (pw->status == PW_STATUS_DOWN) | |
187 | return; | |
188 | ||
189 | if (IS_ZEBRA_DEBUG_PW) | |
190 | zlog_debug("%u: uninstalling pseudowire %s protocol %s", | |
191 | pw->vrf_id, pw->ifname, | |
192 | zebra_route_string(pw->protocol)); | |
193 | ||
194 | /* ignore any possible error */ | |
195 | hook_call(pw_uninstall, pw); | |
97d8d05a | 196 | dplane_pw_uninstall(pw); |
6833ae01 | 197 | |
2dd0d726 | 198 | if (zebra_pw_enabled(pw)) |
6833ae01 | 199 | zebra_pw_update_status(pw, PW_STATUS_DOWN); |
200 | } | |
201 | ||
202 | /* | |
203 | * Installation of the pseudowire in the kernel or hardware has failed. This | |
204 | * function will notify the pseudowire client about the failure and schedule | |
205 | * to retry the installation later. This function can be called by an external | |
206 | * agent that performs the pseudowire installation in an asynchronous way. | |
207 | */ | |
208 | void zebra_pw_install_failure(struct zebra_pw *pw) | |
209 | { | |
210 | if (IS_ZEBRA_DEBUG_PW) | |
211 | zlog_debug( | |
212 | "%u: failed installing pseudowire %s, " | |
213 | "scheduling retry in %u seconds", | |
214 | pw->vrf_id, pw->ifname, PW_INSTALL_RETRY_INTERVAL); | |
215 | ||
216 | /* schedule to retry later */ | |
217 | THREAD_TIMER_OFF(pw->install_retry_timer); | |
3801e764 | 218 | thread_add_timer(zrouter.master, zebra_pw_install_retry, pw, |
69965f53 | 219 | PW_INSTALL_RETRY_INTERVAL, &pw->install_retry_timer); |
6833ae01 | 220 | |
221 | zebra_pw_update_status(pw, PW_STATUS_DOWN); | |
222 | } | |
223 | ||
224 | static int zebra_pw_install_retry(struct thread *thread) | |
225 | { | |
226 | struct zebra_pw *pw = THREAD_ARG(thread); | |
227 | ||
228 | pw->install_retry_timer = NULL; | |
229 | zebra_pw_install(pw); | |
230 | ||
231 | return 0; | |
232 | } | |
233 | ||
234 | static void zebra_pw_update_status(struct zebra_pw *pw, int status) | |
235 | { | |
236 | pw->status = status; | |
237 | if (pw->client) | |
238 | zsend_pw_update(pw->client, pw); | |
239 | } | |
240 | ||
241 | static int zebra_pw_check_reachability(struct zebra_pw *pw) | |
242 | { | |
69965f53 DL |
243 | struct route_entry *re; |
244 | struct nexthop *nexthop; | |
6833ae01 | 245 | |
246 | /* TODO: consider GRE/L2TPv3 tunnels in addition to MPLS LSPs */ | |
247 | ||
248 | /* find route to the remote end of the pseudowire */ | |
69965f53 DL |
249 | re = rib_match(family2afi(pw->af), SAFI_UNICAST, pw->vrf_id, |
250 | &pw->nexthop, NULL); | |
251 | if (!re) { | |
6833ae01 | 252 | if (IS_ZEBRA_DEBUG_PW) |
9df414fe QY |
253 | zlog_debug("%s: no route found for %s", __func__, |
254 | pw->ifname); | |
6833ae01 | 255 | return -1; |
256 | } | |
257 | ||
258 | /* | |
259 | * Need to ensure that there's a label binding for all nexthops. | |
260 | * Otherwise, ECMP for this route could render the pseudowire unusable. | |
261 | */ | |
6b468511 | 262 | for (ALL_NEXTHOPS_PTR(re->ng, nexthop)) { |
6833ae01 | 263 | if (!nexthop->nh_label) { |
264 | if (IS_ZEBRA_DEBUG_PW) | |
9df414fe QY |
265 | zlog_debug("%s: unlabeled route for %s", |
266 | __func__, pw->ifname); | |
6833ae01 | 267 | return -1; |
268 | } | |
269 | } | |
270 | ||
271 | return 0; | |
272 | } | |
273 | ||
453844ab | 274 | static int zebra_pw_client_close(struct zserv *client) |
6833ae01 | 275 | { |
276 | struct vrf *vrf; | |
277 | struct zebra_vrf *zvrf; | |
278 | struct zebra_pw *pw, *tmp; | |
279 | ||
a2addae8 | 280 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) { |
6833ae01 | 281 | zvrf = vrf->info; |
a2addae8 | 282 | RB_FOREACH_SAFE (pw, zebra_pw_head, &zvrf->pseudowires, tmp) { |
6833ae01 | 283 | if (pw->client != client) |
284 | continue; | |
285 | zebra_pw_del(zvrf, pw); | |
286 | } | |
287 | } | |
453844ab QY |
288 | |
289 | return 0; | |
6833ae01 | 290 | } |
291 | ||
292 | void zebra_pw_init(struct zebra_vrf *zvrf) | |
293 | { | |
69965f53 DL |
294 | RB_INIT(zebra_pw_head, &zvrf->pseudowires); |
295 | RB_INIT(zebra_static_pw_head, &zvrf->static_pseudowires); | |
453844ab | 296 | |
21ccc0cf | 297 | hook_register(zserv_client_close, zebra_pw_client_close); |
6833ae01 | 298 | } |
299 | ||
300 | void zebra_pw_exit(struct zebra_vrf *zvrf) | |
301 | { | |
302 | struct zebra_pw *pw; | |
303 | ||
55cd0f61 DS |
304 | while (!RB_EMPTY(zebra_pw_head, &zvrf->pseudowires)) { |
305 | pw = RB_ROOT(zebra_pw_head, &zvrf->pseudowires); | |
306 | ||
6833ae01 | 307 | zebra_pw_del(zvrf, pw); |
55cd0f61 | 308 | } |
6833ae01 | 309 | } |
2dd0d726 RW |
310 | |
311 | DEFUN_NOSH (pseudowire_if, | |
312 | pseudowire_if_cmd, | |
1e9d1183 | 313 | "pseudowire IFNAME", |
2dd0d726 RW |
314 | "Static pseudowire configuration\n" |
315 | "Pseudowire name\n") | |
316 | { | |
317 | struct zebra_vrf *zvrf; | |
318 | struct zebra_pw *pw; | |
2dd0d726 | 319 | const char *ifname; |
1e9d1183 | 320 | int idx = 0; |
2dd0d726 RW |
321 | |
322 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
323 | if (!zvrf) | |
324 | return CMD_WARNING; | |
325 | ||
326 | argv_find(argv, argc, "IFNAME", &idx); | |
327 | ifname = argv[idx]->arg; | |
1e9d1183 | 328 | |
2dd0d726 RW |
329 | pw = zebra_pw_find(zvrf, ifname); |
330 | if (pw && pw->protocol != ZEBRA_ROUTE_STATIC) { | |
69965f53 | 331 | vty_out(vty, "%% Pseudowire is not static\n"); |
2dd0d726 RW |
332 | return CMD_WARNING; |
333 | } | |
334 | ||
2dd0d726 RW |
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 | ||
1e9d1183 RW |
342 | DEFUN (no_pseudowire_if, |
343 | no_pseudowire_if_cmd, | |
344 | "no pseudowire IFNAME", | |
345 | NO_STR | |
346 | "Static pseudowire configuration\n" | |
347 | "Pseudowire name\n") | |
348 | { | |
349 | struct zebra_vrf *zvrf; | |
350 | struct zebra_pw *pw; | |
351 | const char *ifname; | |
352 | int idx = 0; | |
353 | ||
354 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
355 | if (!zvrf) | |
356 | return CMD_WARNING; | |
357 | ||
358 | argv_find(argv, argc, "IFNAME", &idx); | |
359 | ifname = argv[idx]->arg; | |
360 | ||
361 | pw = zebra_pw_find(zvrf, ifname); | |
362 | if (pw) { | |
363 | if (pw->protocol != ZEBRA_ROUTE_STATIC) { | |
364 | vty_out(vty, "%% Pseudowire is not static\n"); | |
365 | return CMD_WARNING; | |
366 | } | |
367 | zebra_pw_del(zvrf, pw); | |
368 | } | |
369 | ||
370 | return CMD_SUCCESS; | |
371 | } | |
372 | ||
2dd0d726 RW |
373 | DEFUN (pseudowire_labels, |
374 | pseudowire_labels_cmd, | |
375 | "[no] mpls label local (16-1048575) remote (16-1048575)", | |
376 | NO_STR | |
377 | "MPLS L2VPN PW command\n" | |
378 | "MPLS L2VPN static labels\n" | |
379 | "Local pseudowire label\n" | |
380 | "Local pseudowire label\n" | |
381 | "Remote pseudowire label\n" | |
382 | "Remote pseudowire label\n") | |
383 | { | |
384 | VTY_DECLVAR_CONTEXT(zebra_pw, pw); | |
385 | int idx = 0; | |
386 | mpls_label_t local_label, remote_label; | |
387 | ||
388 | if (argv_find(argv, argc, "no", &idx)) { | |
389 | local_label = MPLS_NO_LABEL; | |
390 | remote_label = MPLS_NO_LABEL; | |
391 | } else { | |
392 | argv_find(argv, argc, "local", &idx); | |
393 | local_label = atoi(argv[idx + 1]->arg); | |
394 | argv_find(argv, argc, "remote", &idx); | |
395 | remote_label = atoi(argv[idx + 1]->arg); | |
396 | } | |
397 | ||
398 | zebra_pw_change(pw, pw->ifindex, pw->type, pw->af, &pw->nexthop, | |
399 | local_label, remote_label, pw->flags, &pw->data); | |
400 | ||
401 | return CMD_SUCCESS; | |
402 | } | |
403 | ||
404 | DEFUN (pseudowire_neighbor, | |
405 | pseudowire_neighbor_cmd, | |
406 | "[no] neighbor <A.B.C.D|X:X::X:X>", | |
407 | NO_STR | |
408 | "Specify the IPv4 or IPv6 address of the remote endpoint\n" | |
409 | "IPv4 address\n" | |
410 | "IPv6 address\n") | |
411 | { | |
412 | VTY_DECLVAR_CONTEXT(zebra_pw, pw); | |
413 | int idx = 0; | |
414 | const char *address; | |
415 | int af; | |
416 | union g_addr nexthop; | |
417 | ||
418 | af = AF_UNSPEC; | |
419 | memset(&nexthop, 0, sizeof(nexthop)); | |
420 | ||
421 | if (!argv_find(argv, argc, "no", &idx)) { | |
422 | argv_find(argv, argc, "neighbor", &idx); | |
423 | address = argv[idx + 1]->arg; | |
424 | ||
425 | if (inet_pton(AF_INET, address, &nexthop.ipv4) == 1) | |
426 | af = AF_INET; | |
427 | else if (inet_pton(AF_INET6, address, &nexthop.ipv6) == 1) | |
428 | af = AF_INET6; | |
429 | else { | |
69965f53 | 430 | vty_out(vty, "%% Malformed address\n"); |
2dd0d726 RW |
431 | return CMD_WARNING; |
432 | } | |
433 | } | |
434 | ||
435 | zebra_pw_change(pw, pw->ifindex, pw->type, af, &nexthop, | |
436 | pw->local_label, pw->remote_label, pw->flags, | |
437 | &pw->data); | |
438 | ||
439 | return CMD_SUCCESS; | |
440 | } | |
441 | ||
442 | DEFUN (pseudowire_control_word, | |
443 | pseudowire_control_word_cmd, | |
444 | "[no] control-word <exclude|include>", | |
445 | NO_STR | |
446 | "Control-word options\n" | |
447 | "Exclude control-word in pseudowire packets\n" | |
448 | "Include control-word in pseudowire packets\n") | |
449 | { | |
450 | VTY_DECLVAR_CONTEXT(zebra_pw, pw); | |
451 | int idx = 0; | |
452 | uint8_t flags = 0; | |
453 | ||
454 | if (argv_find(argv, argc, "no", &idx)) | |
455 | flags = F_PSEUDOWIRE_CWORD; | |
456 | else { | |
457 | argv_find(argv, argc, "control-word", &idx); | |
458 | if (argv[idx + 1]->text[0] == 'i') | |
459 | flags = F_PSEUDOWIRE_CWORD; | |
460 | } | |
461 | ||
462 | zebra_pw_change(pw, pw->ifindex, pw->type, pw->af, &pw->nexthop, | |
463 | pw->local_label, pw->remote_label, flags, &pw->data); | |
464 | ||
465 | return CMD_SUCCESS; | |
466 | } | |
467 | ||
468 | DEFUN (show_pseudowires, | |
469 | show_pseudowires_cmd, | |
d261dd7e | 470 | "show mpls pseudowires", |
2dd0d726 | 471 | SHOW_STR |
d261dd7e | 472 | MPLS_STR |
efd7904e | 473 | "Pseudowires\n") |
2dd0d726 RW |
474 | { |
475 | struct zebra_vrf *zvrf; | |
476 | struct zebra_pw *pw; | |
477 | ||
478 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
479 | if (!zvrf) | |
480 | return 0; | |
481 | ||
69965f53 DL |
482 | vty_out(vty, "%-16s %-24s %-12s %-8s %-10s\n", "Interface", "Neighbor", |
483 | "Labels", "Protocol", "Status"); | |
2dd0d726 | 484 | |
a2addae8 | 485 | RB_FOREACH (pw, zebra_pw_head, &zvrf->pseudowires) { |
2dd0d726 RW |
486 | char buf_nbr[INET6_ADDRSTRLEN]; |
487 | char buf_labels[64]; | |
488 | ||
489 | inet_ntop(pw->af, &pw->nexthop, buf_nbr, sizeof(buf_nbr)); | |
490 | ||
491 | if (pw->local_label != MPLS_NO_LABEL | |
492 | && pw->remote_label != MPLS_NO_LABEL) | |
493 | snprintf(buf_labels, sizeof(buf_labels), "%u/%u", | |
494 | pw->local_label, pw->remote_label); | |
495 | else | |
496 | snprintf(buf_labels, sizeof(buf_labels), "-"); | |
497 | ||
69965f53 | 498 | vty_out(vty, "%-16s %-24s %-12s %-8s %-10s\n", pw->ifname, |
2dd0d726 RW |
499 | (pw->af != AF_UNSPEC) ? buf_nbr : "-", buf_labels, |
500 | zebra_route_string(pw->protocol), | |
501 | (zebra_pw_enabled(pw) && pw->status == PW_STATUS_UP) | |
502 | ? "UP" | |
69965f53 | 503 | : "DOWN"); |
2dd0d726 RW |
504 | } |
505 | ||
506 | return CMD_SUCCESS; | |
507 | } | |
508 | ||
509 | /* Pseudowire configuration write function. */ | |
510 | static int zebra_pw_config(struct vty *vty) | |
511 | { | |
512 | int write = 0; | |
513 | struct zebra_vrf *zvrf; | |
514 | struct zebra_pw *pw; | |
515 | ||
516 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
517 | if (!zvrf) | |
518 | return 0; | |
519 | ||
a2addae8 | 520 | RB_FOREACH (pw, zebra_static_pw_head, &zvrf->static_pseudowires) { |
69965f53 | 521 | vty_out(vty, "pseudowire %s\n", pw->ifname); |
2dd0d726 RW |
522 | if (pw->local_label != MPLS_NO_LABEL |
523 | && pw->remote_label != MPLS_NO_LABEL) | |
69965f53 DL |
524 | vty_out(vty, " mpls label local %u remote %u\n", |
525 | pw->local_label, pw->remote_label); | |
2dd0d726 RW |
526 | else |
527 | vty_out(vty, | |
528 | " ! Incomplete config, specify the static " | |
69965f53 | 529 | "MPLS labels\n"); |
2dd0d726 RW |
530 | |
531 | if (pw->af != AF_UNSPEC) { | |
532 | char buf[INET6_ADDRSTRLEN]; | |
533 | inet_ntop(pw->af, &pw->nexthop, buf, sizeof(buf)); | |
69965f53 | 534 | vty_out(vty, " neighbor %s\n", buf); |
2dd0d726 RW |
535 | } else |
536 | vty_out(vty, | |
537 | " ! Incomplete config, specify a neighbor " | |
69965f53 | 538 | "address\n"); |
2dd0d726 RW |
539 | |
540 | if (!(pw->flags & F_PSEUDOWIRE_CWORD)) | |
69965f53 | 541 | vty_out(vty, " control-word exclude\n"); |
2dd0d726 | 542 | |
69965f53 | 543 | vty_out(vty, "!\n"); |
2dd0d726 RW |
544 | write = 1; |
545 | } | |
546 | ||
547 | return write; | |
548 | } | |
549 | ||
550 | static struct cmd_node pw_node = { | |
551 | PW_NODE, "%s(config-pw)# ", 1, | |
552 | }; | |
553 | ||
554 | void zebra_pw_vty_init(void) | |
555 | { | |
556 | install_node(&pw_node, zebra_pw_config); | |
557 | install_default(PW_NODE); | |
558 | ||
559 | install_element(CONFIG_NODE, &pseudowire_if_cmd); | |
1e9d1183 | 560 | install_element(CONFIG_NODE, &no_pseudowire_if_cmd); |
2dd0d726 RW |
561 | install_element(PW_NODE, &pseudowire_labels_cmd); |
562 | install_element(PW_NODE, &pseudowire_neighbor_cmd); | |
563 | install_element(PW_NODE, &pseudowire_control_word_cmd); | |
564 | ||
565 | install_element(VIEW_NODE, &show_pseudowires_cmd); | |
566 | } |