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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" | |
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 | ||
6833ae01 | 45 | extern struct zebra_t zebrad; |
46 | ||
2dd0d726 | 47 | static int zebra_pw_enabled(struct zebra_pw *); |
6833ae01 | 48 | static void zebra_pw_install(struct zebra_pw *); |
49 | static void zebra_pw_uninstall(struct zebra_pw *); | |
50 | static int zebra_pw_install_retry(struct thread *); | |
51 | static int zebra_pw_check_reachability(struct zebra_pw *); | |
52 | static void zebra_pw_update_status(struct zebra_pw *, int); | |
53 | ||
54 | static inline int zebra_pw_compare(const struct zebra_pw *a, | |
55 | const struct zebra_pw *b) | |
56 | { | |
57 | return (strcmp(a->ifname, b->ifname)); | |
58 | } | |
59 | ||
2dd0d726 RW |
60 | RB_GENERATE(zebra_pw_head, zebra_pw, pw_entry, zebra_pw_compare) |
61 | RB_GENERATE(zebra_static_pw_head, zebra_pw, static_pw_entry, zebra_pw_compare) | |
6833ae01 | 62 | |
63 | struct zebra_pw *zebra_pw_add(struct zebra_vrf *zvrf, const char *ifname, | |
64 | uint8_t protocol, struct zserv *client) | |
65 | { | |
66 | struct zebra_pw *pw; | |
67 | ||
68 | if (IS_ZEBRA_DEBUG_PW) | |
69 | zlog_debug("%u: adding pseudowire %s protocol %s", | |
70 | zvrf_id(zvrf), ifname, zebra_route_string(protocol)); | |
71 | ||
72 | pw = XCALLOC(MTYPE_PW, sizeof(*pw)); | |
73 | strlcpy(pw->ifname, ifname, sizeof(pw->ifname)); | |
74 | pw->protocol = protocol; | |
75 | pw->vrf_id = zvrf_id(zvrf); | |
76 | pw->client = client; | |
3c5b5220 | 77 | pw->status = PW_STATUS_DOWN; |
2dd0d726 RW |
78 | pw->local_label = MPLS_NO_LABEL; |
79 | pw->remote_label = MPLS_NO_LABEL; | |
80 | pw->flags = F_PSEUDOWIRE_CWORD; | |
6833ae01 | 81 | |
82 | RB_INSERT(zebra_pw_head, &zvrf->pseudowires, pw); | |
2dd0d726 RW |
83 | if (pw->protocol == ZEBRA_ROUTE_STATIC) { |
84 | RB_INSERT(zebra_static_pw_head, &zvrf->static_pseudowires, pw); | |
85 | QOBJ_REG(pw, zebra_pw); | |
86 | } | |
6833ae01 | 87 | |
88 | return pw; | |
89 | } | |
90 | ||
91 | void zebra_pw_del(struct zebra_vrf *zvrf, struct zebra_pw *pw) | |
92 | { | |
93 | if (IS_ZEBRA_DEBUG_PW) | |
94 | zlog_debug("%u: deleting pseudowire %s protocol %s", pw->vrf_id, | |
95 | pw->ifname, zebra_route_string(pw->protocol)); | |
96 | ||
731a75fe RW |
97 | /* remove nexthop tracking */ |
98 | zebra_deregister_rnh_pseudowire(pw->vrf_id, pw); | |
99 | ||
6833ae01 | 100 | /* uninstall */ |
101 | if (pw->status == PW_STATUS_UP) | |
102 | hook_call(pw_uninstall, pw); | |
103 | else if (pw->install_retry_timer) | |
104 | THREAD_TIMER_OFF(pw->install_retry_timer); | |
105 | ||
106 | /* unlink and release memory */ | |
107 | RB_REMOVE(zebra_pw_head, &zvrf->pseudowires, pw); | |
2dd0d726 RW |
108 | if (pw->protocol == ZEBRA_ROUTE_STATIC) |
109 | RB_REMOVE(zebra_static_pw_head, &zvrf->static_pseudowires, pw); | |
6833ae01 | 110 | XFREE(MTYPE_PW, pw); |
111 | } | |
112 | ||
113 | void zebra_pw_change(struct zebra_pw *pw, ifindex_t ifindex, int type, int af, | |
114 | union g_addr *nexthop, uint32_t local_label, | |
115 | uint32_t remote_label, uint8_t flags, | |
116 | union pw_protocol_fields *data) | |
117 | { | |
731a75fe RW |
118 | zebra_deregister_rnh_pseudowire(pw->vrf_id, pw); |
119 | ||
6833ae01 | 120 | pw->ifindex = ifindex; |
121 | pw->type = type; | |
122 | pw->af = af; | |
123 | pw->nexthop = *nexthop; | |
124 | pw->local_label = local_label; | |
125 | pw->remote_label = remote_label; | |
126 | pw->flags = flags; | |
127 | pw->data = *data; | |
128 | ||
2dd0d726 | 129 | if (zebra_pw_enabled(pw)) |
731a75fe | 130 | zebra_register_rnh_pseudowire(pw->vrf_id, pw); |
6833ae01 | 131 | else |
132 | zebra_pw_uninstall(pw); | |
133 | } | |
134 | ||
135 | struct zebra_pw *zebra_pw_find(struct zebra_vrf *zvrf, const char *ifname) | |
136 | { | |
137 | struct zebra_pw pw; | |
138 | strlcpy(pw.ifname, ifname, sizeof(pw.ifname)); | |
139 | return (RB_FIND(zebra_pw_head, &zvrf->pseudowires, &pw)); | |
140 | } | |
141 | ||
2dd0d726 RW |
142 | static int zebra_pw_enabled(struct zebra_pw *pw) |
143 | { | |
144 | if (pw->protocol == ZEBRA_ROUTE_STATIC) { | |
145 | if (pw->local_label == MPLS_NO_LABEL | |
146 | || pw->remote_label == MPLS_NO_LABEL || pw->af == AF_UNSPEC) | |
147 | return 0; | |
148 | return 1; | |
149 | } else | |
150 | return pw->enabled; | |
151 | } | |
152 | ||
6833ae01 | 153 | void zebra_pw_update(struct zebra_pw *pw) |
154 | { | |
155 | if (zebra_pw_check_reachability(pw) < 0) { | |
156 | zebra_pw_uninstall(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 | ||
174 | if (hook_call(pw_install, pw)) { | |
175 | zebra_pw_install_failure(pw); | |
176 | return; | |
177 | } | |
178 | ||
179 | if (pw->status == PW_STATUS_DOWN) | |
180 | zebra_pw_update_status(pw, PW_STATUS_UP); | |
181 | } | |
182 | ||
183 | static void zebra_pw_uninstall(struct zebra_pw *pw) | |
184 | { | |
185 | if (pw->status == PW_STATUS_DOWN) | |
186 | return; | |
187 | ||
188 | if (IS_ZEBRA_DEBUG_PW) | |
189 | zlog_debug("%u: uninstalling pseudowire %s protocol %s", | |
190 | pw->vrf_id, pw->ifname, | |
191 | zebra_route_string(pw->protocol)); | |
192 | ||
193 | /* ignore any possible error */ | |
194 | hook_call(pw_uninstall, pw); | |
195 | ||
2dd0d726 | 196 | if (zebra_pw_enabled(pw)) |
6833ae01 | 197 | zebra_pw_update_status(pw, PW_STATUS_DOWN); |
198 | } | |
199 | ||
200 | /* | |
201 | * Installation of the pseudowire in the kernel or hardware has failed. This | |
202 | * function will notify the pseudowire client about the failure and schedule | |
203 | * to retry the installation later. This function can be called by an external | |
204 | * agent that performs the pseudowire installation in an asynchronous way. | |
205 | */ | |
206 | void zebra_pw_install_failure(struct zebra_pw *pw) | |
207 | { | |
208 | if (IS_ZEBRA_DEBUG_PW) | |
209 | zlog_debug( | |
210 | "%u: failed installing pseudowire %s, " | |
211 | "scheduling retry in %u seconds", | |
212 | pw->vrf_id, pw->ifname, PW_INSTALL_RETRY_INTERVAL); | |
213 | ||
214 | /* schedule to retry later */ | |
215 | THREAD_TIMER_OFF(pw->install_retry_timer); | |
69965f53 DL |
216 | thread_add_timer(zebrad.master, zebra_pw_install_retry, pw, |
217 | PW_INSTALL_RETRY_INTERVAL, &pw->install_retry_timer); | |
6833ae01 | 218 | |
219 | zebra_pw_update_status(pw, PW_STATUS_DOWN); | |
220 | } | |
221 | ||
222 | static int zebra_pw_install_retry(struct thread *thread) | |
223 | { | |
224 | struct zebra_pw *pw = THREAD_ARG(thread); | |
225 | ||
226 | pw->install_retry_timer = NULL; | |
227 | zebra_pw_install(pw); | |
228 | ||
229 | return 0; | |
230 | } | |
231 | ||
232 | static void zebra_pw_update_status(struct zebra_pw *pw, int status) | |
233 | { | |
234 | pw->status = status; | |
235 | if (pw->client) | |
236 | zsend_pw_update(pw->client, pw); | |
237 | } | |
238 | ||
239 | static int zebra_pw_check_reachability(struct zebra_pw *pw) | |
240 | { | |
69965f53 DL |
241 | struct route_entry *re; |
242 | struct nexthop *nexthop; | |
6833ae01 | 243 | |
244 | /* TODO: consider GRE/L2TPv3 tunnels in addition to MPLS LSPs */ | |
245 | ||
246 | /* find route to the remote end of the pseudowire */ | |
69965f53 DL |
247 | re = rib_match(family2afi(pw->af), SAFI_UNICAST, pw->vrf_id, |
248 | &pw->nexthop, NULL); | |
249 | if (!re) { | |
6833ae01 | 250 | if (IS_ZEBRA_DEBUG_PW) |
9df414fe QY |
251 | zlog_debug("%s: no route found for %s", __func__, |
252 | pw->ifname); | |
6833ae01 | 253 | return -1; |
254 | } | |
255 | ||
256 | /* | |
257 | * Need to ensure that there's a label binding for all nexthops. | |
258 | * Otherwise, ECMP for this route could render the pseudowire unusable. | |
259 | */ | |
7ee30f28 | 260 | for (ALL_NEXTHOPS(re->ng, nexthop)) { |
6833ae01 | 261 | if (!nexthop->nh_label) { |
262 | if (IS_ZEBRA_DEBUG_PW) | |
9df414fe QY |
263 | zlog_debug("%s: unlabeled route for %s", |
264 | __func__, pw->ifname); | |
6833ae01 | 265 | return -1; |
266 | } | |
267 | } | |
268 | ||
269 | return 0; | |
270 | } | |
271 | ||
453844ab | 272 | static int zebra_pw_client_close(struct zserv *client) |
6833ae01 | 273 | { |
274 | struct vrf *vrf; | |
275 | struct zebra_vrf *zvrf; | |
276 | struct zebra_pw *pw, *tmp; | |
277 | ||
a2addae8 | 278 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) { |
6833ae01 | 279 | zvrf = vrf->info; |
a2addae8 | 280 | RB_FOREACH_SAFE (pw, zebra_pw_head, &zvrf->pseudowires, tmp) { |
6833ae01 | 281 | if (pw->client != client) |
282 | continue; | |
283 | zebra_pw_del(zvrf, pw); | |
284 | } | |
285 | } | |
453844ab QY |
286 | |
287 | return 0; | |
6833ae01 | 288 | } |
289 | ||
290 | void zebra_pw_init(struct zebra_vrf *zvrf) | |
291 | { | |
69965f53 DL |
292 | RB_INIT(zebra_pw_head, &zvrf->pseudowires); |
293 | RB_INIT(zebra_static_pw_head, &zvrf->static_pseudowires); | |
453844ab | 294 | |
21ccc0cf | 295 | hook_register(zserv_client_close, zebra_pw_client_close); |
6833ae01 | 296 | } |
297 | ||
298 | void zebra_pw_exit(struct zebra_vrf *zvrf) | |
299 | { | |
300 | struct zebra_pw *pw; | |
301 | ||
55cd0f61 DS |
302 | while (!RB_EMPTY(zebra_pw_head, &zvrf->pseudowires)) { |
303 | pw = RB_ROOT(zebra_pw_head, &zvrf->pseudowires); | |
304 | ||
6833ae01 | 305 | zebra_pw_del(zvrf, pw); |
55cd0f61 | 306 | } |
6833ae01 | 307 | } |
2dd0d726 RW |
308 | |
309 | DEFUN_NOSH (pseudowire_if, | |
310 | pseudowire_if_cmd, | |
1e9d1183 | 311 | "pseudowire IFNAME", |
2dd0d726 RW |
312 | "Static pseudowire configuration\n" |
313 | "Pseudowire name\n") | |
314 | { | |
315 | struct zebra_vrf *zvrf; | |
316 | struct zebra_pw *pw; | |
2dd0d726 | 317 | const char *ifname; |
1e9d1183 | 318 | int idx = 0; |
2dd0d726 RW |
319 | |
320 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
321 | if (!zvrf) | |
322 | return CMD_WARNING; | |
323 | ||
324 | argv_find(argv, argc, "IFNAME", &idx); | |
325 | ifname = argv[idx]->arg; | |
1e9d1183 | 326 | |
2dd0d726 RW |
327 | pw = zebra_pw_find(zvrf, ifname); |
328 | if (pw && pw->protocol != ZEBRA_ROUTE_STATIC) { | |
69965f53 | 329 | vty_out(vty, "%% Pseudowire is not static\n"); |
2dd0d726 RW |
330 | return CMD_WARNING; |
331 | } | |
332 | ||
2dd0d726 RW |
333 | if (!pw) |
334 | pw = zebra_pw_add(zvrf, ifname, ZEBRA_ROUTE_STATIC, NULL); | |
335 | VTY_PUSH_CONTEXT(PW_NODE, pw); | |
336 | ||
337 | return CMD_SUCCESS; | |
338 | } | |
339 | ||
1e9d1183 RW |
340 | DEFUN (no_pseudowire_if, |
341 | no_pseudowire_if_cmd, | |
342 | "no pseudowire IFNAME", | |
343 | NO_STR | |
344 | "Static pseudowire configuration\n" | |
345 | "Pseudowire name\n") | |
346 | { | |
347 | struct zebra_vrf *zvrf; | |
348 | struct zebra_pw *pw; | |
349 | const char *ifname; | |
350 | int idx = 0; | |
351 | ||
352 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
353 | if (!zvrf) | |
354 | return CMD_WARNING; | |
355 | ||
356 | argv_find(argv, argc, "IFNAME", &idx); | |
357 | ifname = argv[idx]->arg; | |
358 | ||
359 | pw = zebra_pw_find(zvrf, ifname); | |
360 | if (pw) { | |
361 | if (pw->protocol != ZEBRA_ROUTE_STATIC) { | |
362 | vty_out(vty, "%% Pseudowire is not static\n"); | |
363 | return CMD_WARNING; | |
364 | } | |
365 | zebra_pw_del(zvrf, pw); | |
366 | } | |
367 | ||
368 | return CMD_SUCCESS; | |
369 | } | |
370 | ||
2dd0d726 RW |
371 | DEFUN (pseudowire_labels, |
372 | pseudowire_labels_cmd, | |
373 | "[no] mpls label local (16-1048575) remote (16-1048575)", | |
374 | NO_STR | |
375 | "MPLS L2VPN PW command\n" | |
376 | "MPLS L2VPN static labels\n" | |
377 | "Local pseudowire label\n" | |
378 | "Local pseudowire label\n" | |
379 | "Remote pseudowire label\n" | |
380 | "Remote pseudowire label\n") | |
381 | { | |
382 | VTY_DECLVAR_CONTEXT(zebra_pw, pw); | |
383 | int idx = 0; | |
384 | mpls_label_t local_label, remote_label; | |
385 | ||
386 | if (argv_find(argv, argc, "no", &idx)) { | |
387 | local_label = MPLS_NO_LABEL; | |
388 | remote_label = MPLS_NO_LABEL; | |
389 | } else { | |
390 | argv_find(argv, argc, "local", &idx); | |
391 | local_label = atoi(argv[idx + 1]->arg); | |
392 | argv_find(argv, argc, "remote", &idx); | |
393 | remote_label = atoi(argv[idx + 1]->arg); | |
394 | } | |
395 | ||
396 | zebra_pw_change(pw, pw->ifindex, pw->type, pw->af, &pw->nexthop, | |
397 | local_label, remote_label, pw->flags, &pw->data); | |
398 | ||
399 | return CMD_SUCCESS; | |
400 | } | |
401 | ||
402 | DEFUN (pseudowire_neighbor, | |
403 | pseudowire_neighbor_cmd, | |
404 | "[no] neighbor <A.B.C.D|X:X::X:X>", | |
405 | NO_STR | |
406 | "Specify the IPv4 or IPv6 address of the remote endpoint\n" | |
407 | "IPv4 address\n" | |
408 | "IPv6 address\n") | |
409 | { | |
410 | VTY_DECLVAR_CONTEXT(zebra_pw, pw); | |
411 | int idx = 0; | |
412 | const char *address; | |
413 | int af; | |
414 | union g_addr nexthop; | |
415 | ||
416 | af = AF_UNSPEC; | |
417 | memset(&nexthop, 0, sizeof(nexthop)); | |
418 | ||
419 | if (!argv_find(argv, argc, "no", &idx)) { | |
420 | argv_find(argv, argc, "neighbor", &idx); | |
421 | address = argv[idx + 1]->arg; | |
422 | ||
423 | if (inet_pton(AF_INET, address, &nexthop.ipv4) == 1) | |
424 | af = AF_INET; | |
425 | else if (inet_pton(AF_INET6, address, &nexthop.ipv6) == 1) | |
426 | af = AF_INET6; | |
427 | else { | |
69965f53 | 428 | vty_out(vty, "%% Malformed address\n"); |
2dd0d726 RW |
429 | return CMD_WARNING; |
430 | } | |
431 | } | |
432 | ||
433 | zebra_pw_change(pw, pw->ifindex, pw->type, af, &nexthop, | |
434 | pw->local_label, pw->remote_label, pw->flags, | |
435 | &pw->data); | |
436 | ||
437 | return CMD_SUCCESS; | |
438 | } | |
439 | ||
440 | DEFUN (pseudowire_control_word, | |
441 | pseudowire_control_word_cmd, | |
442 | "[no] control-word <exclude|include>", | |
443 | NO_STR | |
444 | "Control-word options\n" | |
445 | "Exclude control-word in pseudowire packets\n" | |
446 | "Include control-word in pseudowire packets\n") | |
447 | { | |
448 | VTY_DECLVAR_CONTEXT(zebra_pw, pw); | |
449 | int idx = 0; | |
450 | uint8_t flags = 0; | |
451 | ||
452 | if (argv_find(argv, argc, "no", &idx)) | |
453 | flags = F_PSEUDOWIRE_CWORD; | |
454 | else { | |
455 | argv_find(argv, argc, "control-word", &idx); | |
456 | if (argv[idx + 1]->text[0] == 'i') | |
457 | flags = F_PSEUDOWIRE_CWORD; | |
458 | } | |
459 | ||
460 | zebra_pw_change(pw, pw->ifindex, pw->type, pw->af, &pw->nexthop, | |
461 | pw->local_label, pw->remote_label, flags, &pw->data); | |
462 | ||
463 | return CMD_SUCCESS; | |
464 | } | |
465 | ||
466 | DEFUN (show_pseudowires, | |
467 | show_pseudowires_cmd, | |
d261dd7e | 468 | "show mpls pseudowires", |
2dd0d726 | 469 | SHOW_STR |
d261dd7e | 470 | MPLS_STR |
efd7904e | 471 | "Pseudowires\n") |
2dd0d726 RW |
472 | { |
473 | struct zebra_vrf *zvrf; | |
474 | struct zebra_pw *pw; | |
475 | ||
476 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
477 | if (!zvrf) | |
478 | return 0; | |
479 | ||
69965f53 DL |
480 | vty_out(vty, "%-16s %-24s %-12s %-8s %-10s\n", "Interface", "Neighbor", |
481 | "Labels", "Protocol", "Status"); | |
2dd0d726 | 482 | |
a2addae8 | 483 | RB_FOREACH (pw, zebra_pw_head, &zvrf->pseudowires) { |
2dd0d726 RW |
484 | char buf_nbr[INET6_ADDRSTRLEN]; |
485 | char buf_labels[64]; | |
486 | ||
487 | inet_ntop(pw->af, &pw->nexthop, buf_nbr, sizeof(buf_nbr)); | |
488 | ||
489 | if (pw->local_label != MPLS_NO_LABEL | |
490 | && pw->remote_label != MPLS_NO_LABEL) | |
491 | snprintf(buf_labels, sizeof(buf_labels), "%u/%u", | |
492 | pw->local_label, pw->remote_label); | |
493 | else | |
494 | snprintf(buf_labels, sizeof(buf_labels), "-"); | |
495 | ||
69965f53 | 496 | vty_out(vty, "%-16s %-24s %-12s %-8s %-10s\n", pw->ifname, |
2dd0d726 RW |
497 | (pw->af != AF_UNSPEC) ? buf_nbr : "-", buf_labels, |
498 | zebra_route_string(pw->protocol), | |
499 | (zebra_pw_enabled(pw) && pw->status == PW_STATUS_UP) | |
500 | ? "UP" | |
69965f53 | 501 | : "DOWN"); |
2dd0d726 RW |
502 | } |
503 | ||
504 | return CMD_SUCCESS; | |
505 | } | |
506 | ||
507 | /* Pseudowire configuration write function. */ | |
508 | static int zebra_pw_config(struct vty *vty) | |
509 | { | |
510 | int write = 0; | |
511 | struct zebra_vrf *zvrf; | |
512 | struct zebra_pw *pw; | |
513 | ||
514 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
515 | if (!zvrf) | |
516 | return 0; | |
517 | ||
a2addae8 | 518 | RB_FOREACH (pw, zebra_static_pw_head, &zvrf->static_pseudowires) { |
69965f53 | 519 | vty_out(vty, "pseudowire %s\n", pw->ifname); |
2dd0d726 RW |
520 | if (pw->local_label != MPLS_NO_LABEL |
521 | && pw->remote_label != MPLS_NO_LABEL) | |
69965f53 DL |
522 | vty_out(vty, " mpls label local %u remote %u\n", |
523 | pw->local_label, pw->remote_label); | |
2dd0d726 RW |
524 | else |
525 | vty_out(vty, | |
526 | " ! Incomplete config, specify the static " | |
69965f53 | 527 | "MPLS labels\n"); |
2dd0d726 RW |
528 | |
529 | if (pw->af != AF_UNSPEC) { | |
530 | char buf[INET6_ADDRSTRLEN]; | |
531 | inet_ntop(pw->af, &pw->nexthop, buf, sizeof(buf)); | |
69965f53 | 532 | vty_out(vty, " neighbor %s\n", buf); |
2dd0d726 RW |
533 | } else |
534 | vty_out(vty, | |
535 | " ! Incomplete config, specify a neighbor " | |
69965f53 | 536 | "address\n"); |
2dd0d726 RW |
537 | |
538 | if (!(pw->flags & F_PSEUDOWIRE_CWORD)) | |
69965f53 | 539 | vty_out(vty, " control-word exclude\n"); |
2dd0d726 | 540 | |
69965f53 | 541 | vty_out(vty, "!\n"); |
2dd0d726 RW |
542 | write = 1; |
543 | } | |
544 | ||
545 | return write; | |
546 | } | |
547 | ||
548 | static struct cmd_node pw_node = { | |
549 | PW_NODE, "%s(config-pw)# ", 1, | |
550 | }; | |
551 | ||
552 | void zebra_pw_vty_init(void) | |
553 | { | |
554 | install_node(&pw_node, zebra_pw_config); | |
555 | install_default(PW_NODE); | |
556 | ||
557 | install_element(CONFIG_NODE, &pseudowire_if_cmd); | |
1e9d1183 | 558 | install_element(CONFIG_NODE, &no_pseudowire_if_cmd); |
2dd0d726 RW |
559 | install_element(PW_NODE, &pseudowire_labels_cmd); |
560 | install_element(PW_NODE, &pseudowire_neighbor_cmd); | |
561 | install_element(PW_NODE, &pseudowire_control_word_cmd); | |
562 | ||
563 | install_element(VIEW_NODE, &show_pseudowires_cmd); | |
564 | } |