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e9e2c950 RZ |
1 | /********************************************************************* |
2 | * Copyright 2017-2018 Network Device Education Foundation, Inc. ("NetDEF") | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License as published by the Free | |
6 | * Software Foundation; either version 2 of the License, or (at your option) | |
7 | * any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
15 | * with this program; see the file COPYING; if not, write to the Free Software | |
16 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
17 | * | |
18 | * config.c: implements the BFD daemon configuration handling. | |
19 | * | |
20 | * Authors | |
21 | * ------- | |
22 | * Rafael Zalamena <rzalamena@opensourcerouting.org> | |
23 | */ | |
24 | ||
25 | #include <zebra.h> | |
26 | ||
27 | #include <string.h> | |
28 | ||
29 | #include "lib/json.h" | |
30 | ||
31 | #include "bfd.h" | |
32 | ||
bf8d3d6a | 33 | DEFINE_MTYPE_STATIC(BFDD, BFDD_LABEL, "long-lived label memory"); |
1b88c3cb | 34 | |
e9e2c950 RZ |
35 | /* |
36 | * Definitions | |
37 | */ | |
38 | enum peer_list_type { | |
39 | PLT_IPV4, | |
40 | PLT_IPV6, | |
41 | PLT_LABEL, | |
42 | }; | |
43 | ||
44 | ||
45 | /* | |
46 | * Prototypes | |
47 | */ | |
48 | static int parse_config_json(struct json_object *jo, bpc_handle h, void *arg); | |
49 | static int parse_list(struct json_object *jo, enum peer_list_type plt, | |
50 | bpc_handle h, void *arg); | |
51 | static int parse_peer_config(struct json_object *jo, struct bfd_peer_cfg *bpc); | |
52 | static int parse_peer_label_config(struct json_object *jo, | |
53 | struct bfd_peer_cfg *bpc); | |
54 | ||
55 | static int config_add(struct bfd_peer_cfg *bpc, void *arg); | |
56 | static int config_del(struct bfd_peer_cfg *bpc, void *arg); | |
57 | ||
58 | static int json_object_add_peer(struct json_object *jo, struct bfd_session *bs); | |
59 | ||
60 | ||
61 | /* | |
62 | * Implementation | |
63 | */ | |
64 | static int config_add(struct bfd_peer_cfg *bpc, | |
65 | void *arg __attribute__((unused))) | |
66 | { | |
67 | return ptm_bfd_sess_new(bpc) == NULL; | |
68 | } | |
69 | ||
70 | static int config_del(struct bfd_peer_cfg *bpc, | |
71 | void *arg __attribute__((unused))) | |
72 | { | |
bc50bcc8 | 73 | return ptm_bfd_sess_del(bpc) != 0; |
e9e2c950 RZ |
74 | } |
75 | ||
76 | static int parse_config_json(struct json_object *jo, bpc_handle h, void *arg) | |
77 | { | |
78 | const char *key, *sval; | |
79 | struct json_object *jo_val; | |
80 | struct json_object_iterator joi, join; | |
81 | int error = 0; | |
82 | ||
83 | JSON_FOREACH (jo, joi, join) { | |
84 | key = json_object_iter_peek_name(&joi); | |
85 | jo_val = json_object_iter_peek_value(&joi); | |
86 | ||
87 | if (strcmp(key, "ipv4") == 0) { | |
88 | error += parse_list(jo_val, PLT_IPV4, h, arg); | |
89 | } else if (strcmp(key, "ipv6") == 0) { | |
90 | error += parse_list(jo_val, PLT_IPV6, h, arg); | |
91 | } else if (strcmp(key, "label") == 0) { | |
92 | error += parse_list(jo_val, PLT_LABEL, h, arg); | |
93 | } else { | |
94 | sval = json_object_get_string(jo_val); | |
259b64eb RZ |
95 | zlog_warn("%s:%d invalid configuration: %s", __func__, |
96 | __LINE__, sval); | |
e9e2c950 RZ |
97 | error++; |
98 | } | |
99 | } | |
100 | ||
101 | /* | |
102 | * Our callers never call free() on json_object and only expect | |
103 | * the return value, so lets free() it here. | |
104 | */ | |
105 | json_object_put(jo); | |
106 | ||
107 | return error; | |
108 | } | |
109 | ||
110 | int parse_config(const char *fname) | |
111 | { | |
112 | struct json_object *jo; | |
113 | ||
114 | jo = json_object_from_file(fname); | |
115 | if (jo == NULL) | |
116 | return -1; | |
117 | ||
118 | return parse_config_json(jo, config_add, NULL); | |
119 | } | |
120 | ||
121 | static int parse_list(struct json_object *jo, enum peer_list_type plt, | |
122 | bpc_handle h, void *arg) | |
123 | { | |
124 | struct json_object *jo_val; | |
125 | struct bfd_peer_cfg bpc; | |
126 | int allen, idx; | |
127 | int error = 0, result; | |
128 | ||
129 | allen = json_object_array_length(jo); | |
130 | for (idx = 0; idx < allen; idx++) { | |
131 | jo_val = json_object_array_get_idx(jo, idx); | |
132 | ||
133 | /* Set defaults. */ | |
134 | memset(&bpc, 0, sizeof(bpc)); | |
135 | bpc.bpc_detectmultiplier = BFD_DEFDETECTMULT; | |
136 | bpc.bpc_recvinterval = BFD_DEFREQUIREDMINRX; | |
137 | bpc.bpc_txinterval = BFD_DEFDESIREDMINTX; | |
4df3e31c IR |
138 | bpc.bpc_echorecvinterval = BFD_DEF_REQ_MIN_ECHO_RX; |
139 | bpc.bpc_echotxinterval = BFD_DEF_DES_MIN_ECHO_TX; | |
e9e2c950 RZ |
140 | |
141 | switch (plt) { | |
142 | case PLT_IPV4: | |
259b64eb | 143 | zlog_debug("ipv4 peers %d:", allen); |
e9e2c950 RZ |
144 | bpc.bpc_ipv4 = true; |
145 | break; | |
146 | case PLT_IPV6: | |
259b64eb | 147 | zlog_debug("ipv6 peers %d:", allen); |
e9e2c950 RZ |
148 | bpc.bpc_ipv4 = false; |
149 | break; | |
150 | case PLT_LABEL: | |
259b64eb | 151 | zlog_debug("label peers %d:", allen); |
e9e2c950 RZ |
152 | if (parse_peer_label_config(jo_val, &bpc) != 0) { |
153 | error++; | |
154 | continue; | |
155 | } | |
156 | break; | |
157 | ||
158 | default: | |
159 | error++; | |
259b64eb RZ |
160 | zlog_err("%s:%d: unsupported peer type", __func__, |
161 | __LINE__); | |
e9e2c950 RZ |
162 | break; |
163 | } | |
164 | ||
165 | result = parse_peer_config(jo_val, &bpc); | |
166 | error += result; | |
167 | if (result == 0) | |
168 | error += (h(&bpc, arg) != 0); | |
169 | } | |
170 | ||
171 | return error; | |
172 | } | |
173 | ||
174 | static int parse_peer_config(struct json_object *jo, struct bfd_peer_cfg *bpc) | |
175 | { | |
176 | const char *key, *sval; | |
177 | struct json_object *jo_val; | |
178 | struct json_object_iterator joi, join; | |
179 | int family_type = (bpc->bpc_ipv4) ? AF_INET : AF_INET6; | |
180 | int error = 0; | |
181 | ||
259b64eb | 182 | zlog_debug(" peer: %s", bpc->bpc_ipv4 ? "ipv4" : "ipv6"); |
e9e2c950 RZ |
183 | |
184 | JSON_FOREACH (jo, joi, join) { | |
185 | key = json_object_iter_peek_name(&joi); | |
186 | jo_val = json_object_iter_peek_value(&joi); | |
187 | ||
188 | if (strcmp(key, "multihop") == 0) { | |
189 | bpc->bpc_mhop = json_object_get_boolean(jo_val); | |
259b64eb RZ |
190 | zlog_debug(" multihop: %s", |
191 | bpc->bpc_mhop ? "true" : "false"); | |
e9e2c950 RZ |
192 | } else if (strcmp(key, "peer-address") == 0) { |
193 | sval = json_object_get_string(jo_val); | |
194 | if (strtosa(sval, &bpc->bpc_peer) != 0 | |
195 | || bpc->bpc_peer.sa_sin.sin_family != family_type) { | |
259b64eb | 196 | zlog_debug( |
e9e2c950 RZ |
197 | "%s:%d failed to parse peer-address '%s'", |
198 | __func__, __LINE__, sval); | |
199 | error++; | |
200 | } | |
259b64eb | 201 | zlog_debug(" peer-address: %s", sval); |
e9e2c950 RZ |
202 | } else if (strcmp(key, "local-address") == 0) { |
203 | sval = json_object_get_string(jo_val); | |
204 | if (strtosa(sval, &bpc->bpc_local) != 0 | |
205 | || bpc->bpc_local.sa_sin.sin_family | |
206 | != family_type) { | |
259b64eb | 207 | zlog_debug( |
e9e2c950 RZ |
208 | "%s:%d failed to parse local-address '%s'", |
209 | __func__, __LINE__, sval); | |
210 | error++; | |
211 | } | |
259b64eb | 212 | zlog_debug(" local-address: %s", sval); |
e9e2c950 RZ |
213 | } else if (strcmp(key, "local-interface") == 0) { |
214 | bpc->bpc_has_localif = true; | |
215 | sval = json_object_get_string(jo_val); | |
216 | if (strlcpy(bpc->bpc_localif, sval, | |
217 | sizeof(bpc->bpc_localif)) | |
218 | > sizeof(bpc->bpc_localif)) { | |
259b64eb | 219 | zlog_debug( |
d6951e5e DL |
220 | " local-interface: %s (truncated)", |
221 | sval); | |
e9e2c950 RZ |
222 | error++; |
223 | } else { | |
259b64eb | 224 | zlog_debug(" local-interface: %s", sval); |
e9e2c950 | 225 | } |
e9e2c950 RZ |
226 | } else if (strcmp(key, "vrf-name") == 0) { |
227 | bpc->bpc_has_vrfname = true; | |
228 | sval = json_object_get_string(jo_val); | |
229 | if (strlcpy(bpc->bpc_vrfname, sval, | |
230 | sizeof(bpc->bpc_vrfname)) | |
231 | > sizeof(bpc->bpc_vrfname)) { | |
259b64eb RZ |
232 | zlog_debug(" vrf-name: %s (truncated)", |
233 | sval); | |
e9e2c950 RZ |
234 | error++; |
235 | } else { | |
259b64eb | 236 | zlog_debug(" vrf-name: %s", sval); |
e9e2c950 RZ |
237 | } |
238 | } else if (strcmp(key, "detect-multiplier") == 0) { | |
239 | bpc->bpc_detectmultiplier = | |
240 | json_object_get_int64(jo_val); | |
241 | bpc->bpc_has_detectmultiplier = true; | |
259b64eb RZ |
242 | zlog_debug(" detect-multiplier: %u", |
243 | bpc->bpc_detectmultiplier); | |
e9e2c950 RZ |
244 | } else if (strcmp(key, "receive-interval") == 0) { |
245 | bpc->bpc_recvinterval = json_object_get_int64(jo_val); | |
246 | bpc->bpc_has_recvinterval = true; | |
259b64eb RZ |
247 | zlog_debug(" receive-interval: %" PRIu64, |
248 | bpc->bpc_recvinterval); | |
e9e2c950 RZ |
249 | } else if (strcmp(key, "transmit-interval") == 0) { |
250 | bpc->bpc_txinterval = json_object_get_int64(jo_val); | |
251 | bpc->bpc_has_txinterval = true; | |
259b64eb RZ |
252 | zlog_debug(" transmit-interval: %" PRIu64, |
253 | bpc->bpc_txinterval); | |
4df3e31c IR |
254 | } else if (strcmp(key, "echo-receive-interval") == 0) { |
255 | bpc->bpc_echorecvinterval = json_object_get_int64(jo_val); | |
256 | bpc->bpc_has_echorecvinterval = true; | |
257 | zlog_debug(" echo-receive-interval: %" PRIu64, | |
258 | bpc->bpc_echorecvinterval); | |
259 | } else if (strcmp(key, "echo-transmit-interval") == 0) { | |
260 | bpc->bpc_echotxinterval = json_object_get_int64(jo_val); | |
261 | bpc->bpc_has_echotxinterval = true; | |
262 | zlog_debug(" echo-transmit-interval: %" PRIu64, | |
263 | bpc->bpc_echotxinterval); | |
e9e2c950 RZ |
264 | } else if (strcmp(key, "create-only") == 0) { |
265 | bpc->bpc_createonly = json_object_get_boolean(jo_val); | |
259b64eb RZ |
266 | zlog_debug(" create-only: %s", |
267 | bpc->bpc_createonly ? "true" : "false"); | |
e9e2c950 RZ |
268 | } else if (strcmp(key, "shutdown") == 0) { |
269 | bpc->bpc_shutdown = json_object_get_boolean(jo_val); | |
259b64eb RZ |
270 | zlog_debug(" shutdown: %s", |
271 | bpc->bpc_shutdown ? "true" : "false"); | |
e9e2c950 RZ |
272 | } else if (strcmp(key, "echo-mode") == 0) { |
273 | bpc->bpc_echo = json_object_get_boolean(jo_val); | |
259b64eb RZ |
274 | zlog_debug(" echo-mode: %s", |
275 | bpc->bpc_echo ? "true" : "false"); | |
e9e2c950 RZ |
276 | } else if (strcmp(key, "label") == 0) { |
277 | bpc->bpc_has_label = true; | |
278 | sval = json_object_get_string(jo_val); | |
279 | if (strlcpy(bpc->bpc_label, sval, | |
280 | sizeof(bpc->bpc_label)) | |
281 | > sizeof(bpc->bpc_label)) { | |
259b64eb RZ |
282 | zlog_debug(" label: %s (truncated)", |
283 | sval); | |
e9e2c950 RZ |
284 | error++; |
285 | } else { | |
259b64eb | 286 | zlog_debug(" label: %s", sval); |
e9e2c950 RZ |
287 | } |
288 | } else { | |
289 | sval = json_object_get_string(jo_val); | |
259b64eb RZ |
290 | zlog_warn("%s:%d invalid configuration: '%s: %s'", |
291 | __func__, __LINE__, key, sval); | |
e9e2c950 RZ |
292 | error++; |
293 | } | |
294 | } | |
295 | ||
296 | if (bpc->bpc_peer.sa_sin.sin_family == 0) { | |
259b64eb RZ |
297 | zlog_debug("%s:%d no peer address provided", __func__, |
298 | __LINE__); | |
e9e2c950 RZ |
299 | error++; |
300 | } | |
301 | ||
302 | return error; | |
303 | } | |
304 | ||
305 | static int parse_peer_label_config(struct json_object *jo, | |
306 | struct bfd_peer_cfg *bpc) | |
307 | { | |
308 | struct peer_label *pl; | |
309 | struct json_object *label; | |
310 | const char *sval; | |
311 | ||
312 | /* Get label and translate it to BFD daemon key. */ | |
313 | if (!json_object_object_get_ex(jo, "label", &label)) | |
314 | return 1; | |
315 | ||
316 | sval = json_object_get_string(label); | |
317 | ||
318 | pl = pl_find(sval); | |
319 | if (pl == NULL) | |
320 | return 1; | |
321 | ||
259b64eb | 322 | zlog_debug(" peer-label: %s", sval); |
e9e2c950 RZ |
323 | |
324 | /* Translate the label into BFD address keys. */ | |
79b4a6fc | 325 | bs_to_bpc(pl->pl_bs, bpc); |
e9e2c950 RZ |
326 | |
327 | return 0; | |
328 | } | |
329 | ||
330 | ||
331 | /* | |
332 | * Control socket JSON parsing. | |
333 | */ | |
334 | int config_request_add(const char *jsonstr) | |
335 | { | |
336 | struct json_object *jo; | |
337 | ||
338 | jo = json_tokener_parse(jsonstr); | |
339 | if (jo == NULL) | |
340 | return -1; | |
341 | ||
342 | return parse_config_json(jo, config_add, NULL); | |
343 | } | |
344 | ||
345 | int config_request_del(const char *jsonstr) | |
346 | { | |
347 | struct json_object *jo; | |
348 | ||
349 | jo = json_tokener_parse(jsonstr); | |
350 | if (jo == NULL) | |
351 | return -1; | |
352 | ||
353 | return parse_config_json(jo, config_del, NULL); | |
354 | } | |
355 | ||
356 | char *config_response(const char *status, const char *error) | |
357 | { | |
358 | struct json_object *resp, *jo; | |
359 | char *jsonstr; | |
360 | ||
361 | resp = json_object_new_object(); | |
362 | if (resp == NULL) | |
363 | return NULL; | |
364 | ||
365 | /* Add 'status' response key. */ | |
366 | jo = json_object_new_string(status); | |
367 | if (jo == NULL) { | |
368 | json_object_put(resp); | |
369 | return NULL; | |
370 | } | |
371 | ||
372 | json_object_object_add(resp, "status", jo); | |
373 | ||
374 | /* Add 'error' response key. */ | |
375 | if (error != NULL) { | |
376 | jo = json_object_new_string(error); | |
377 | if (jo == NULL) { | |
378 | json_object_put(resp); | |
379 | return NULL; | |
380 | } | |
381 | ||
382 | json_object_object_add(resp, "error", jo); | |
383 | } | |
384 | ||
385 | /* Generate JSON response. */ | |
386 | jsonstr = XSTRDUP( | |
387 | MTYPE_BFDD_NOTIFICATION, | |
388 | json_object_to_json_string_ext(resp, BFDD_JSON_CONV_OPTIONS)); | |
389 | json_object_put(resp); | |
390 | ||
391 | return jsonstr; | |
392 | } | |
393 | ||
394 | char *config_notify(struct bfd_session *bs) | |
395 | { | |
396 | struct json_object *resp; | |
397 | char *jsonstr; | |
398 | time_t now; | |
399 | ||
400 | resp = json_object_new_object(); | |
401 | if (resp == NULL) | |
402 | return NULL; | |
403 | ||
404 | json_object_string_add(resp, "op", BCM_NOTIFY_PEER_STATUS); | |
405 | ||
406 | json_object_add_peer(resp, bs); | |
407 | ||
408 | /* Add status information */ | |
409 | json_object_int_add(resp, "id", bs->discrs.my_discr); | |
410 | json_object_int_add(resp, "remote-id", bs->discrs.my_discr); | |
411 | ||
412 | switch (bs->ses_state) { | |
413 | case PTM_BFD_UP: | |
414 | json_object_string_add(resp, "state", "up"); | |
415 | ||
416 | now = monotime(NULL); | |
417 | json_object_int_add(resp, "uptime", now - bs->uptime.tv_sec); | |
418 | break; | |
419 | case PTM_BFD_ADM_DOWN: | |
420 | json_object_string_add(resp, "state", "adm-down"); | |
421 | break; | |
422 | case PTM_BFD_DOWN: | |
423 | json_object_string_add(resp, "state", "down"); | |
424 | ||
425 | now = monotime(NULL); | |
426 | json_object_int_add(resp, "downtime", | |
427 | now - bs->downtime.tv_sec); | |
428 | break; | |
429 | case PTM_BFD_INIT: | |
430 | json_object_string_add(resp, "state", "init"); | |
431 | break; | |
432 | ||
433 | default: | |
434 | json_object_string_add(resp, "state", "unknown"); | |
435 | break; | |
436 | } | |
437 | ||
438 | json_object_int_add(resp, "diagnostics", bs->local_diag); | |
439 | json_object_int_add(resp, "remote-diagnostics", bs->remote_diag); | |
440 | ||
441 | /* Generate JSON response. */ | |
442 | jsonstr = XSTRDUP( | |
443 | MTYPE_BFDD_NOTIFICATION, | |
444 | json_object_to_json_string_ext(resp, BFDD_JSON_CONV_OPTIONS)); | |
445 | json_object_put(resp); | |
446 | ||
447 | return jsonstr; | |
448 | } | |
449 | ||
450 | char *config_notify_config(const char *op, struct bfd_session *bs) | |
451 | { | |
452 | struct json_object *resp; | |
453 | char *jsonstr; | |
454 | ||
455 | resp = json_object_new_object(); | |
456 | if (resp == NULL) | |
457 | return NULL; | |
458 | ||
459 | json_object_string_add(resp, "op", op); | |
460 | ||
461 | json_object_add_peer(resp, bs); | |
462 | ||
463 | /* On peer deletion we don't need to add any additional information. */ | |
464 | if (strcmp(op, BCM_NOTIFY_CONFIG_DELETE) == 0) | |
465 | goto skip_config; | |
466 | ||
467 | json_object_int_add(resp, "detect-multiplier", bs->detect_mult); | |
468 | json_object_int_add(resp, "receive-interval", | |
469 | bs->timers.required_min_rx / 1000); | |
f43b9368 RZ |
470 | json_object_int_add(resp, "transmit-interval", |
471 | bs->timers.desired_min_tx / 1000); | |
4df3e31c IR |
472 | json_object_int_add(resp, "echo-receive-interval", |
473 | bs->timers.required_min_echo_rx / 1000); | |
474 | json_object_int_add(resp, "echo-transmit-interval", | |
475 | bs->timers.desired_min_echo_tx / 1000); | |
e9e2c950 RZ |
476 | |
477 | json_object_int_add(resp, "remote-detect-multiplier", | |
478 | bs->remote_detect_mult); | |
479 | json_object_int_add(resp, "remote-receive-interval", | |
480 | bs->remote_timers.required_min_rx / 1000); | |
481 | json_object_int_add(resp, "remote-transmit-interval", | |
482 | bs->remote_timers.desired_min_tx / 1000); | |
4df3e31c | 483 | json_object_int_add(resp, "remote-echo-receive-interval", |
e9e2c950 RZ |
484 | bs->remote_timers.required_min_echo / 1000); |
485 | ||
b88113ef | 486 | if (CHECK_FLAG(bs->flags, BFD_SESS_FLAG_ECHO)) |
e9e2c950 RZ |
487 | json_object_boolean_true_add(resp, "echo-mode"); |
488 | else | |
489 | json_object_boolean_false_add(resp, "echo-mode"); | |
490 | ||
b88113ef | 491 | if (CHECK_FLAG(bs->flags, BFD_SESS_FLAG_SHUTDOWN)) |
e9e2c950 RZ |
492 | json_object_boolean_true_add(resp, "shutdown"); |
493 | else | |
494 | json_object_boolean_false_add(resp, "shutdown"); | |
495 | ||
496 | skip_config: | |
497 | /* Generate JSON response. */ | |
498 | jsonstr = XSTRDUP( | |
499 | MTYPE_BFDD_NOTIFICATION, | |
500 | json_object_to_json_string_ext(resp, BFDD_JSON_CONV_OPTIONS)); | |
501 | json_object_put(resp); | |
502 | ||
503 | return jsonstr; | |
504 | } | |
505 | ||
506 | int config_notify_request(struct bfd_control_socket *bcs, const char *jsonstr, | |
507 | bpc_handle bh) | |
508 | { | |
509 | struct json_object *jo; | |
510 | ||
511 | jo = json_tokener_parse(jsonstr); | |
512 | if (jo == NULL) | |
513 | return -1; | |
514 | ||
515 | return parse_config_json(jo, bh, bcs); | |
516 | } | |
517 | ||
518 | static int json_object_add_peer(struct json_object *jo, struct bfd_session *bs) | |
519 | { | |
79b4a6fc RZ |
520 | char addr_buf[INET6_ADDRSTRLEN]; |
521 | ||
e9e2c950 | 522 | /* Add peer 'key' information. */ |
b88113ef | 523 | if (CHECK_FLAG(bs->flags, BFD_SESS_FLAG_IPV6)) |
e9e2c950 RZ |
524 | json_object_boolean_true_add(jo, "ipv6"); |
525 | else | |
526 | json_object_boolean_false_add(jo, "ipv6"); | |
527 | ||
b88113ef | 528 | if (CHECK_FLAG(bs->flags, BFD_SESS_FLAG_MH)) { |
e9e2c950 RZ |
529 | json_object_boolean_true_add(jo, "multihop"); |
530 | json_object_string_add(jo, "peer-address", | |
79b4a6fc RZ |
531 | inet_ntop(bs->key.family, &bs->key.peer, |
532 | addr_buf, sizeof(addr_buf))); | |
e9e2c950 | 533 | json_object_string_add(jo, "local-address", |
79b4a6fc RZ |
534 | inet_ntop(bs->key.family, &bs->key.local, |
535 | addr_buf, sizeof(addr_buf))); | |
536 | if (bs->key.vrfname[0]) | |
537 | json_object_string_add(jo, "vrf-name", bs->key.vrfname); | |
e9e2c950 RZ |
538 | } else { |
539 | json_object_boolean_false_add(jo, "multihop"); | |
540 | json_object_string_add(jo, "peer-address", | |
79b4a6fc RZ |
541 | inet_ntop(bs->key.family, &bs->key.peer, |
542 | addr_buf, sizeof(addr_buf))); | |
543 | if (memcmp(&bs->key.local, &zero_addr, sizeof(bs->key.local))) | |
544 | json_object_string_add( | |
545 | jo, "local-address", | |
546 | inet_ntop(bs->key.family, &bs->key.local, | |
547 | addr_buf, sizeof(addr_buf))); | |
548 | if (bs->key.ifname[0]) | |
e9e2c950 | 549 | json_object_string_add(jo, "local-interface", |
79b4a6fc | 550 | bs->key.ifname); |
e9e2c950 RZ |
551 | } |
552 | ||
553 | if (bs->pl) | |
554 | json_object_string_add(jo, "label", bs->pl->pl_label); | |
555 | ||
556 | return 0; | |
557 | } | |
558 | ||
559 | ||
560 | /* | |
561 | * Label handling | |
562 | */ | |
563 | struct peer_label *pl_find(const char *label) | |
564 | { | |
565 | struct peer_label *pl; | |
566 | ||
567 | TAILQ_FOREACH (pl, &bglobal.bg_pllist, pl_entry) { | |
568 | if (strcmp(pl->pl_label, label) != 0) | |
569 | continue; | |
570 | ||
571 | return pl; | |
572 | } | |
573 | ||
574 | return NULL; | |
575 | } | |
576 | ||
577 | struct peer_label *pl_new(const char *label, struct bfd_session *bs) | |
578 | { | |
579 | struct peer_label *pl; | |
580 | ||
581 | pl = XCALLOC(MTYPE_BFDD_LABEL, sizeof(*pl)); | |
e9e2c950 RZ |
582 | |
583 | if (strlcpy(pl->pl_label, label, sizeof(pl->pl_label)) | |
584 | > sizeof(pl->pl_label)) | |
259b64eb | 585 | zlog_warn("%s:%d: label was truncated", __func__, __LINE__); |
e9e2c950 RZ |
586 | |
587 | pl->pl_bs = bs; | |
588 | bs->pl = pl; | |
589 | ||
590 | TAILQ_INSERT_HEAD(&bglobal.bg_pllist, pl, pl_entry); | |
591 | ||
592 | return pl; | |
593 | } | |
594 | ||
595 | void pl_free(struct peer_label *pl) | |
596 | { | |
597 | if (pl == NULL) | |
598 | return; | |
599 | ||
600 | /* Remove the pointer back. */ | |
601 | pl->pl_bs->pl = NULL; | |
602 | ||
603 | TAILQ_REMOVE(&bglobal.bg_pllist, pl, pl_entry); | |
604 | XFREE(MTYPE_BFDD_LABEL, pl); | |
605 | } |