File: | src/usr.bin/bgplg/bgpctl/../../../usr.sbin/bgpctl/bgpctl.c |
Warning: | line 1066, column 10 Although the value stored to 'linelen' is used in the enclosing expression, the value is never actually read from 'linelen' |
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1 | /* $OpenBSD: bgpctl.c,v 1.273 2021/08/09 08:24:36 claudio Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 2003 Henning Brauer <henning@openbsd.org> |
5 | * Copyright (c) 2004-2019 Claudio Jeker <claudio@openbsd.org> |
6 | * Copyright (c) 2016 Job Snijders <job@instituut.net> |
7 | * Copyright (c) 2016 Peter Hessler <phessler@openbsd.org> |
8 | * |
9 | * Permission to use, copy, modify, and distribute this software for any |
10 | * purpose with or without fee is hereby granted, provided that the above |
11 | * copyright notice and this permission notice appear in all copies. |
12 | * |
13 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
14 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
15 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
16 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
17 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
18 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
19 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
20 | */ |
21 | |
22 | #include <sys/types.h> |
23 | #include <sys/socket.h> |
24 | #include <sys/stat.h> |
25 | #include <sys/un.h> |
26 | |
27 | #include <endian.h> |
28 | #include <err.h> |
29 | #include <errno(*__errno()).h> |
30 | #include <fcntl.h> |
31 | #include <math.h> |
32 | #include <stdio.h> |
33 | #include <stdlib.h> |
34 | #include <string.h> |
35 | #include <time.h> |
36 | #include <unistd.h> |
37 | #include <util.h> |
38 | |
39 | #include "bgpd.h" |
40 | #include "session.h" |
41 | #include "rde.h" |
42 | #include "version.h" |
43 | |
44 | #include "bgpctl.h" |
45 | #include "parser.h" |
46 | #include "mrtparser.h" |
47 | |
48 | int main(int, char *[]); |
49 | int show(struct imsg *, struct parse_result *); |
50 | void send_filterset(struct imsgbuf *, struct filter_set_head *); |
51 | void show_mrt_dump_neighbors(struct mrt_rib *, struct mrt_peer *, |
52 | void *); |
53 | void show_mrt_dump(struct mrt_rib *, struct mrt_peer *, void *); |
54 | void network_mrt_dump(struct mrt_rib *, struct mrt_peer *, void *); |
55 | void show_mrt_state(struct mrt_bgp_state *, void *); |
56 | void show_mrt_msg(struct mrt_bgp_msg *, void *); |
57 | const char *msg_type(u_int8_t); |
58 | void network_bulk(struct parse_result *); |
59 | int match_aspath(void *, u_int16_t, struct filter_as *); |
60 | |
61 | struct imsgbuf *ibuf; |
62 | struct mrt_parser show_mrt = { show_mrt_dump, show_mrt_state, show_mrt_msg }; |
63 | struct mrt_parser net_mrt = { network_mrt_dump, NULL((void*)0), NULL((void*)0) }; |
64 | const struct output *output = &show_output; |
65 | int tableid; |
66 | int nodescr; |
67 | |
68 | __dead__attribute__((__noreturn__)) void |
69 | usage(void) |
70 | { |
71 | extern char *__progname; |
72 | |
73 | fprintf(stderr(&__sF[2]), "usage: %s [-jnV] [-s socket] command [argument ...]\n", |
74 | __progname); |
75 | exit(1); |
76 | } |
77 | |
78 | int |
79 | main(int argc, char *argv[]) |
80 | { |
81 | struct sockaddr_un sun; |
82 | int fd, n, done, ch, verbose = 0; |
83 | struct imsg imsg; |
84 | struct network_config net; |
85 | struct parse_result *res; |
86 | struct ctl_neighbor neighbor; |
87 | struct ctl_show_rib_request ribreq; |
88 | char *sockname; |
89 | enum imsg_type type; |
90 | |
91 | if (pledge("stdio rpath wpath cpath unix inet dns", NULL((void*)0)) == -1) |
92 | err(1, "pledge"); |
93 | |
94 | tableid = getrtable(); |
95 | if (asprintf(&sockname, "%s.%d", SOCKET_NAME"/var/run/bgpd.sock", tableid) == -1) |
96 | err(1, "asprintf"); |
97 | |
98 | while ((ch = getopt(argc, argv, "jns:V")) != -1) { |
99 | switch (ch) { |
100 | case 'n': |
101 | if (++nodescr > 1) |
102 | usage(); |
103 | break; |
104 | case 'j': |
105 | output = &json_output; |
106 | break; |
107 | case 's': |
108 | sockname = optarg; |
109 | break; |
110 | case 'V': |
111 | fprintf(stderr(&__sF[2]), "OpenBGPD %s\n", BGPD_VERSION"7.2"); |
112 | return 0; |
113 | default: |
114 | usage(); |
115 | /* NOTREACHED */ |
116 | } |
117 | } |
118 | argc -= optind; |
119 | argv += optind; |
120 | |
121 | if ((res = parse(argc, argv)) == NULL((void*)0)) |
122 | exit(1); |
123 | |
124 | memcpy(&neighbor.addr, &res->peeraddr, sizeof(neighbor.addr)); |
125 | strlcpy(neighbor.descr, res->peerdesc, sizeof(neighbor.descr)); |
126 | neighbor.is_group = res->is_group; |
127 | strlcpy(neighbor.reason, res->reason, sizeof(neighbor.reason)); |
128 | |
129 | switch (res->action) { |
130 | case SHOW_MRT: |
131 | if (pledge("stdio", NULL((void*)0)) == -1) |
132 | err(1, "pledge"); |
133 | |
134 | bzero(&ribreq, sizeof(ribreq)); |
135 | if (res->as.type != AS_UNDEF) |
136 | ribreq.as = res->as; |
137 | if (res->addr.aid) { |
138 | ribreq.prefix = res->addr; |
139 | ribreq.prefixlen = res->prefixlen; |
140 | } |
141 | /* XXX currently no communities support */ |
142 | ribreq.neighbor = neighbor; |
143 | ribreq.aid = res->aid; |
144 | ribreq.flags = res->flags; |
145 | ribreq.validation_state = res->validation_state; |
146 | show_mrt.arg = &ribreq; |
147 | if (res->flags & F_CTL_NEIGHBORS0x400000) |
148 | show_mrt.dump = show_mrt_dump_neighbors; |
149 | else |
150 | output->head(res); |
151 | mrt_parse(res->mrtfd, &show_mrt, 1); |
152 | exit(0); |
153 | default: |
154 | break; |
155 | } |
156 | |
157 | if (pledge("stdio unix", NULL((void*)0)) == -1) |
158 | err(1, "pledge"); |
159 | |
160 | if ((fd = socket(AF_UNIX1, SOCK_STREAM1, 0)) == -1) |
161 | err(1, "control_init: socket"); |
162 | |
163 | bzero(&sun, sizeof(sun)); |
164 | sun.sun_family = AF_UNIX1; |
165 | if (strlcpy(sun.sun_path, sockname, sizeof(sun.sun_path)) >= |
166 | sizeof(sun.sun_path)) |
167 | errx(1, "socket name too long"); |
168 | if (connect(fd, (struct sockaddr *)&sun, sizeof(sun)) == -1) |
169 | err(1, "connect: %s", sockname); |
170 | |
171 | if (pledge("stdio", NULL((void*)0)) == -1) |
172 | err(1, "pledge"); |
173 | |
174 | if ((ibuf = malloc(sizeof(struct imsgbuf))) == NULL((void*)0)) |
175 | err(1, NULL((void*)0)); |
176 | imsg_init(ibuf, fd); |
177 | done = 0; |
178 | |
179 | switch (res->action) { |
180 | case NONE: |
181 | case SHOW_MRT: |
182 | usage(); |
183 | /* NOTREACHED */ |
184 | case SHOW: |
185 | case SHOW_SUMMARY: |
186 | imsg_compose(ibuf, IMSG_CTL_SHOW_NEIGHBOR, 0, 0, -1, NULL((void*)0), 0); |
187 | break; |
188 | case SHOW_SUMMARY_TERSE: |
189 | imsg_compose(ibuf, IMSG_CTL_SHOW_TERSE, 0, 0, -1, NULL((void*)0), 0); |
190 | break; |
191 | case SHOW_FIB: |
192 | if (!res->addr.aid) { |
193 | struct ibuf *msg; |
194 | sa_family_t af; |
195 | |
196 | af = aid2af(res->aid); |
197 | if ((msg = imsg_create(ibuf, IMSG_CTL_KROUTE, |
198 | res->rtableid, 0, sizeof(res->flags) + |
199 | sizeof(af))) == NULL((void*)0)) |
200 | errx(1, "imsg_create failure"); |
201 | if (imsg_add(msg, &res->flags, sizeof(res->flags)) == |
202 | -1 || |
203 | imsg_add(msg, &af, sizeof(af)) == -1) |
204 | errx(1, "imsg_add failure"); |
205 | imsg_close(ibuf, msg); |
206 | } else |
207 | imsg_compose(ibuf, IMSG_CTL_KROUTE_ADDR, res->rtableid, |
208 | 0, -1, &res->addr, sizeof(res->addr)); |
209 | break; |
210 | case SHOW_FIB_TABLES: |
211 | imsg_compose(ibuf, IMSG_CTL_SHOW_FIB_TABLES, 0, 0, -1, NULL((void*)0), 0); |
212 | break; |
213 | case SHOW_NEXTHOP: |
214 | imsg_compose(ibuf, IMSG_CTL_SHOW_NEXTHOP, res->rtableid, 0, -1, |
215 | NULL((void*)0), 0); |
216 | break; |
217 | case SHOW_INTERFACE: |
218 | imsg_compose(ibuf, IMSG_CTL_SHOW_INTERFACE, 0, 0, -1, NULL((void*)0), 0); |
219 | break; |
220 | case SHOW_SET: |
221 | imsg_compose(ibuf, IMSG_CTL_SHOW_SET, 0, 0, -1, NULL((void*)0), 0); |
222 | break; |
223 | case SHOW_RTR: |
224 | imsg_compose(ibuf, IMSG_CTL_SHOW_RTR, 0, 0, -1, NULL((void*)0), 0); |
225 | break; |
226 | case SHOW_NEIGHBOR: |
227 | case SHOW_NEIGHBOR_TIMERS: |
228 | case SHOW_NEIGHBOR_TERSE: |
229 | neighbor.show_timers = (res->action == SHOW_NEIGHBOR_TIMERS); |
230 | if (res->peeraddr.aid || res->peerdesc[0]) |
231 | imsg_compose(ibuf, IMSG_CTL_SHOW_NEIGHBOR, 0, 0, -1, |
232 | &neighbor, sizeof(neighbor)); |
233 | else |
234 | imsg_compose(ibuf, IMSG_CTL_SHOW_NEIGHBOR, 0, 0, -1, |
235 | NULL((void*)0), 0); |
236 | break; |
237 | case SHOW_RIB: |
238 | bzero(&ribreq, sizeof(ribreq)); |
239 | type = IMSG_CTL_SHOW_RIB; |
240 | if (res->addr.aid) { |
241 | ribreq.prefix = res->addr; |
242 | ribreq.prefixlen = res->prefixlen; |
243 | type = IMSG_CTL_SHOW_RIB_PREFIX; |
244 | } |
245 | if (res->as.type != AS_UNDEF) |
246 | ribreq.as = res->as; |
247 | if (res->community.flags != 0) |
248 | ribreq.community = res->community; |
249 | ribreq.neighbor = neighbor; |
250 | strlcpy(ribreq.rib, res->rib, sizeof(ribreq.rib)); |
251 | ribreq.aid = res->aid; |
252 | ribreq.path_id = res->pathid; |
253 | ribreq.flags = res->flags; |
254 | imsg_compose(ibuf, type, 0, 0, -1, &ribreq, sizeof(ribreq)); |
255 | break; |
256 | case SHOW_RIB_MEM: |
257 | imsg_compose(ibuf, IMSG_CTL_SHOW_RIB_MEM, 0, 0, -1, NULL((void*)0), 0); |
258 | break; |
259 | case RELOAD: |
260 | imsg_compose(ibuf, IMSG_CTL_RELOAD, 0, 0, -1, |
261 | res->reason, sizeof(res->reason)); |
262 | if (res->reason[0]) |
263 | printf("reload request sent: %s\n", res->reason); |
264 | else |
265 | printf("reload request sent.\n"); |
266 | break; |
267 | case FIB: |
268 | errx(1, "action==FIB"); |
269 | break; |
270 | case FIB_COUPLE: |
271 | imsg_compose(ibuf, IMSG_CTL_FIB_COUPLE, res->rtableid, 0, -1, |
272 | NULL((void*)0), 0); |
273 | printf("couple request sent.\n"); |
274 | done = 1; |
275 | break; |
276 | case FIB_DECOUPLE: |
277 | imsg_compose(ibuf, IMSG_CTL_FIB_DECOUPLE, res->rtableid, 0, -1, |
278 | NULL((void*)0), 0); |
279 | printf("decouple request sent.\n"); |
280 | done = 1; |
281 | break; |
282 | case NEIGHBOR: |
283 | errx(1, "action==NEIGHBOR"); |
284 | break; |
285 | case NEIGHBOR_UP: |
286 | imsg_compose(ibuf, IMSG_CTL_NEIGHBOR_UP, 0, 0, -1, |
287 | &neighbor, sizeof(neighbor)); |
288 | break; |
289 | case NEIGHBOR_DOWN: |
290 | imsg_compose(ibuf, IMSG_CTL_NEIGHBOR_DOWN, 0, 0, -1, |
291 | &neighbor, sizeof(neighbor)); |
292 | break; |
293 | case NEIGHBOR_CLEAR: |
294 | imsg_compose(ibuf, IMSG_CTL_NEIGHBOR_CLEAR, 0, 0, -1, |
295 | &neighbor, sizeof(neighbor)); |
296 | break; |
297 | case NEIGHBOR_RREFRESH: |
298 | imsg_compose(ibuf, IMSG_CTL_NEIGHBOR_RREFRESH, 0, 0, -1, |
299 | &neighbor, sizeof(neighbor)); |
300 | break; |
301 | case NEIGHBOR_DESTROY: |
302 | imsg_compose(ibuf, IMSG_CTL_NEIGHBOR_DESTROY, 0, 0, -1, |
303 | &neighbor, sizeof(neighbor)); |
304 | break; |
305 | case NETWORK_BULK_ADD: |
306 | case NETWORK_BULK_REMOVE: |
307 | network_bulk(res); |
308 | printf("requests sent.\n"); |
309 | done = 1; |
310 | break; |
311 | case NETWORK_ADD: |
312 | case NETWORK_REMOVE: |
313 | bzero(&net, sizeof(net)); |
314 | net.prefix = res->addr; |
315 | net.prefixlen = res->prefixlen; |
316 | net.rd = res->rd; |
317 | /* attribute sets are not supported */ |
318 | if (res->action == NETWORK_ADD) { |
319 | imsg_compose(ibuf, IMSG_NETWORK_ADD, 0, 0, -1, |
320 | &net, sizeof(net)); |
321 | send_filterset(ibuf, &res->set); |
322 | imsg_compose(ibuf, IMSG_NETWORK_DONE, 0, 0, -1, |
323 | NULL((void*)0), 0); |
324 | } else |
325 | imsg_compose(ibuf, IMSG_NETWORK_REMOVE, 0, 0, -1, |
326 | &net, sizeof(net)); |
327 | printf("request sent.\n"); |
328 | done = 1; |
329 | break; |
330 | case NETWORK_FLUSH: |
331 | imsg_compose(ibuf, IMSG_NETWORK_FLUSH, 0, 0, -1, NULL((void*)0), 0); |
332 | printf("request sent.\n"); |
333 | done = 1; |
334 | break; |
335 | case NETWORK_SHOW: |
336 | bzero(&ribreq, sizeof(ribreq)); |
337 | ribreq.aid = res->aid; |
338 | strlcpy(ribreq.rib, res->rib, sizeof(ribreq.rib)); |
339 | imsg_compose(ibuf, IMSG_CTL_SHOW_NETWORK, 0, 0, -1, |
340 | &ribreq, sizeof(ribreq)); |
341 | break; |
342 | case NETWORK_MRT: |
343 | bzero(&ribreq, sizeof(ribreq)); |
344 | if (res->as.type != AS_UNDEF) |
345 | ribreq.as = res->as; |
346 | if (res->addr.aid) { |
347 | ribreq.prefix = res->addr; |
348 | ribreq.prefixlen = res->prefixlen; |
349 | } |
350 | /* XXX currently no community support */ |
351 | ribreq.neighbor = neighbor; |
352 | ribreq.aid = res->aid; |
353 | ribreq.flags = res->flags; |
354 | net_mrt.arg = &ribreq; |
355 | mrt_parse(res->mrtfd, &net_mrt, 1); |
356 | done = 1; |
357 | break; |
358 | case LOG_VERBOSE: |
359 | verbose = 1; |
360 | /* FALLTHROUGH */ |
361 | case LOG_BRIEF: |
362 | imsg_compose(ibuf, IMSG_CTL_LOG_VERBOSE, 0, 0, -1, |
363 | &verbose, sizeof(verbose)); |
364 | printf("logging request sent.\n"); |
365 | done = 1; |
366 | break; |
367 | } |
368 | |
369 | while (ibuf->w.queued) |
370 | if (msgbuf_write(&ibuf->w) <= 0 && errno(*__errno()) != EAGAIN35) |
371 | err(1, "write error"); |
372 | |
373 | output->head(res); |
374 | |
375 | while (!done) { |
376 | if ((n = imsg_read(ibuf)) == -1 && errno(*__errno()) != EAGAIN35) |
377 | err(1, "imsg_read error"); |
378 | if (n == 0) |
379 | errx(1, "pipe closed"); |
380 | |
381 | while (!done) { |
382 | if ((n = imsg_get(ibuf, &imsg)) == -1) |
383 | err(1, "imsg_get error"); |
384 | if (n == 0) |
385 | break; |
386 | |
387 | done = show(&imsg, res); |
388 | imsg_free(&imsg); |
389 | } |
390 | } |
391 | |
392 | output->tail(); |
393 | |
394 | close(fd); |
395 | free(ibuf); |
396 | |
397 | exit(0); |
398 | } |
399 | |
400 | int |
401 | show(struct imsg *imsg, struct parse_result *res) |
402 | { |
403 | struct peer *p; |
404 | struct ctl_timer t; |
405 | struct ctl_show_interface *iface; |
406 | struct ctl_show_nexthop *nh; |
407 | struct ctl_show_set set; |
408 | struct ctl_show_rtr rtr; |
409 | struct kroute_full *kf; |
410 | struct ktable *kt; |
411 | struct ctl_show_rib rib; |
412 | struct rde_memstats stats; |
413 | struct rde_hashstats hash; |
414 | u_char *asdata; |
415 | u_int rescode, ilen; |
416 | size_t aslen; |
417 | |
418 | switch (imsg->hdr.type) { |
419 | case IMSG_CTL_SHOW_NEIGHBOR: |
420 | p = imsg->data; |
421 | output->neighbor(p, res); |
422 | break; |
423 | case IMSG_CTL_SHOW_TIMER: |
424 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(t)) |
425 | errx(1, "wrong imsg len"); |
426 | memcpy(&t, imsg->data, sizeof(t)); |
427 | if (t.type > 0 && t.type < Timer_Max) |
428 | output->timer(&t); |
429 | break; |
430 | case IMSG_CTL_SHOW_INTERFACE: |
431 | iface = imsg->data; |
432 | output->interface(iface); |
433 | break; |
434 | case IMSG_CTL_SHOW_NEXTHOP: |
435 | nh = imsg->data; |
436 | output->nexthop(nh); |
437 | break; |
438 | case IMSG_CTL_KROUTE: |
439 | case IMSG_CTL_SHOW_NETWORK: |
440 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(*kf)) |
441 | errx(1, "wrong imsg len"); |
442 | kf = imsg->data; |
443 | output->fib(kf); |
444 | break; |
445 | case IMSG_CTL_SHOW_FIB_TABLES: |
446 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(*kt)) |
447 | errx(1, "wrong imsg len"); |
448 | kt = imsg->data; |
449 | output->fib_table(kt); |
450 | break; |
451 | case IMSG_CTL_SHOW_RIB: |
452 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(rib)) |
453 | errx(1, "wrong imsg len"); |
454 | memcpy(&rib, imsg->data, sizeof(rib)); |
455 | aslen = imsg->hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr) - sizeof(rib); |
456 | asdata = imsg->data; |
457 | asdata += sizeof(rib); |
458 | output->rib(&rib, asdata, aslen, res); |
459 | break; |
460 | case IMSG_CTL_SHOW_RIB_COMMUNITIES: |
461 | ilen = imsg->hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
462 | if (ilen % sizeof(struct community)) { |
463 | warnx("bad IMSG_CTL_SHOW_RIB_COMMUNITIES received"); |
464 | break; |
465 | } |
466 | output->communities(imsg->data, ilen, res); |
467 | break; |
468 | case IMSG_CTL_SHOW_RIB_ATTR: |
469 | ilen = imsg->hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
470 | if (ilen < 3) { |
471 | warnx("bad IMSG_CTL_SHOW_RIB_ATTR received"); |
472 | break; |
473 | } |
474 | output->attr(imsg->data, ilen, res->flags, 0); |
475 | break; |
476 | case IMSG_CTL_SHOW_RIB_MEM: |
477 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(stats)) |
478 | errx(1, "wrong imsg len"); |
479 | memcpy(&stats, imsg->data, sizeof(stats)); |
480 | output->rib_mem(&stats); |
481 | break; |
482 | case IMSG_CTL_SHOW_RIB_HASH: |
483 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(hash)) |
484 | errx(1, "wrong imsg len"); |
485 | memcpy(&hash, imsg->data, sizeof(hash)); |
486 | output->rib_hash(&hash); |
487 | break; |
488 | case IMSG_CTL_SHOW_SET: |
489 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(set)) |
490 | errx(1, "wrong imsg len"); |
491 | memcpy(&set, imsg->data, sizeof(set)); |
492 | output->set(&set); |
493 | break; |
494 | case IMSG_CTL_SHOW_RTR: |
495 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(rtr)) |
496 | errx(1, "wrong imsg len"); |
497 | memcpy(&rtr, imsg->data, sizeof(rtr)); |
498 | output->rtr(&rtr); |
499 | break; |
500 | case IMSG_CTL_RESULT: |
501 | if (imsg->hdr.len != IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(rescode)) { |
502 | warnx("got IMSG_CTL_RESULT with wrong len"); |
503 | break; |
504 | } |
505 | memcpy(&rescode, imsg->data, sizeof(rescode)); |
506 | output->result(rescode); |
507 | return (1); |
508 | case IMSG_CTL_END: |
509 | return (1); |
510 | default: |
511 | warnx("unknown imsg %d received", imsg->hdr.type); |
512 | break; |
513 | } |
514 | |
515 | return (0); |
516 | } |
517 | |
518 | time_t |
519 | get_monotime(time_t t) |
520 | { |
521 | struct timespec ts; |
522 | |
523 | if (t == 0) |
524 | return -1; |
525 | if (clock_gettime(CLOCK_MONOTONIC3, &ts) != 0) |
526 | err(1, "clock_gettime"); |
527 | if (t > ts.tv_sec) /* time in the future is not possible */ |
528 | t = ts.tv_sec; |
529 | return (ts.tv_sec - t); |
530 | } |
531 | |
532 | char * |
533 | fmt_peer(const char *descr, const struct bgpd_addr *remote_addr, |
534 | int masklen) |
535 | { |
536 | const char *ip; |
537 | char *p; |
538 | |
539 | if (descr && descr[0] && !nodescr) { |
540 | if ((p = strdup(descr)) == NULL((void*)0)) |
541 | err(1, NULL((void*)0)); |
542 | return (p); |
543 | } |
544 | |
545 | ip = log_addr(remote_addr); |
546 | if (masklen != -1 && ((remote_addr->aid == AID_INET1 && masklen != 32) || |
547 | (remote_addr->aid == AID_INET62 && masklen != 128))) { |
548 | if (asprintf(&p, "%s/%u", ip, masklen) == -1) |
549 | err(1, NULL((void*)0)); |
550 | } else { |
551 | if ((p = strdup(ip)) == NULL((void*)0)) |
552 | err(1, NULL((void*)0)); |
553 | } |
554 | |
555 | return (p); |
556 | } |
557 | |
558 | const char * |
559 | fmt_auth_method(enum auth_method method) |
560 | { |
561 | switch (method) { |
562 | case AUTH_MD5SIG: |
563 | return ", using md5sig"; |
564 | case AUTH_IPSEC_MANUAL_ESP: |
565 | return ", using ipsec manual esp"; |
566 | case AUTH_IPSEC_MANUAL_AH: |
567 | return ", using ipsec manual ah"; |
568 | case AUTH_IPSEC_IKE_ESP: |
569 | return ", using ipsec ike esp"; |
570 | case AUTH_IPSEC_IKE_AH: |
571 | return ", using ipsec ike ah"; |
572 | case AUTH_NONE: /* FALLTHROUGH */ |
573 | default: |
574 | return ""; |
575 | } |
576 | } |
577 | |
578 | #define TF_BUFS8 8 |
579 | #define TF_LEN9 9 |
580 | |
581 | const char * |
582 | fmt_timeframe(time_t t) |
583 | { |
584 | char *buf; |
585 | static char tfbuf[TF_BUFS8][TF_LEN9]; /* ring buffer */ |
586 | static int idx = 0; |
587 | unsigned int sec, min, hrs, day; |
588 | unsigned long long week; |
589 | |
590 | buf = tfbuf[idx++]; |
591 | if (idx == TF_BUFS8) |
592 | idx = 0; |
593 | |
594 | week = t; |
595 | |
596 | sec = week % 60; |
597 | week /= 60; |
598 | min = week % 60; |
599 | week /= 60; |
600 | hrs = week % 24; |
601 | week /= 24; |
602 | day = week % 7; |
603 | week /= 7; |
604 | |
605 | if (week > 0) |
606 | snprintf(buf, TF_LEN9, "%02lluw%01ud%02uh", week, day, hrs); |
607 | else if (day > 0) |
608 | snprintf(buf, TF_LEN9, "%01ud%02uh%02um", day, hrs, min); |
609 | else |
610 | snprintf(buf, TF_LEN9, "%02u:%02u:%02u", hrs, min, sec); |
611 | |
612 | return (buf); |
613 | } |
614 | |
615 | const char * |
616 | fmt_monotime(time_t t) |
617 | { |
618 | t = get_monotime(t); |
619 | |
620 | if (t == -1) |
621 | return ("Never"); |
622 | |
623 | return (fmt_timeframe(t)); |
624 | } |
625 | |
626 | const char * |
627 | fmt_fib_flags(u_int16_t flags) |
628 | { |
629 | static char buf[8]; |
630 | |
631 | if (flags & F_DOWN0x0010) |
632 | strlcpy(buf, " ", sizeof(buf)); |
633 | else |
634 | strlcpy(buf, "*", sizeof(buf)); |
635 | |
636 | if (flags & F_BGPD_INSERTED0x0001) |
637 | strlcat(buf, "B", sizeof(buf)); |
638 | else if (flags & F_CONNECTED0x0004) |
639 | strlcat(buf, "C", sizeof(buf)); |
640 | else if (flags & F_STATIC0x0020) |
641 | strlcat(buf, "S", sizeof(buf)); |
642 | else if (flags & F_DYNAMIC0x0040) |
643 | strlcat(buf, "D", sizeof(buf)); |
644 | else |
645 | strlcat(buf, " ", sizeof(buf)); |
646 | |
647 | if (flags & F_NEXTHOP0x0008) |
648 | strlcat(buf, "N", sizeof(buf)); |
649 | else |
650 | strlcat(buf, " ", sizeof(buf)); |
651 | |
652 | if (flags & F_REJECT0x0080 && flags & F_BLACKHOLE0x0100) |
653 | strlcat(buf, "f", sizeof(buf)); |
654 | else if (flags & F_REJECT0x0080) |
655 | strlcat(buf, "r", sizeof(buf)); |
656 | else if (flags & F_BLACKHOLE0x0100) |
657 | strlcat(buf, "b", sizeof(buf)); |
658 | else |
659 | strlcat(buf, " ", sizeof(buf)); |
660 | |
661 | if (strlcat(buf, " ", sizeof(buf)) >= sizeof(buf)) |
662 | errx(1, "%s buffer too small", __func__); |
663 | |
664 | return buf; |
665 | } |
666 | |
667 | const char * |
668 | fmt_origin(u_int8_t origin, int sum) |
669 | { |
670 | switch (origin) { |
671 | case ORIGIN_IGP0: |
672 | return (sum ? "i" : "IGP"); |
673 | case ORIGIN_EGP1: |
674 | return (sum ? "e" : "EGP"); |
675 | case ORIGIN_INCOMPLETE2: |
676 | return (sum ? "?" : "incomplete"); |
677 | default: |
678 | return (sum ? "X" : "bad origin"); |
679 | } |
680 | } |
681 | |
682 | const char * |
683 | fmt_flags(u_int8_t flags, int sum) |
684 | { |
685 | static char buf[80]; |
686 | char flagstr[5]; |
687 | char *p = flagstr; |
688 | |
689 | if (sum) { |
690 | if (flags & F_PREF_INVALID0x20) |
691 | *p++ = 'E'; |
692 | if (flags & F_PREF_ANNOUNCE0x08) |
693 | *p++ = 'A'; |
694 | if (flags & F_PREF_INTERNAL0x04) |
695 | *p++ = 'I'; |
696 | if (flags & F_PREF_STALE0x10) |
697 | *p++ = 'S'; |
698 | if (flags & F_PREF_ELIGIBLE0x01) |
699 | *p++ = '*'; |
700 | if (flags & F_PREF_ACTIVE0x02) |
701 | *p++ = '>'; |
702 | *p = '\0'; |
703 | snprintf(buf, sizeof(buf), "%-5s", flagstr); |
704 | } else { |
705 | if (flags & F_PREF_INTERNAL0x04) |
706 | strlcpy(buf, "internal", sizeof(buf)); |
707 | else |
708 | strlcpy(buf, "external", sizeof(buf)); |
709 | |
710 | if (flags & F_PREF_STALE0x10) |
711 | strlcat(buf, ", stale", sizeof(buf)); |
712 | if (flags & F_PREF_ELIGIBLE0x01) |
713 | strlcat(buf, ", valid", sizeof(buf)); |
714 | if (flags & F_PREF_ACTIVE0x02) |
715 | strlcat(buf, ", best", sizeof(buf)); |
716 | if (flags & F_PREF_ANNOUNCE0x08) |
717 | strlcat(buf, ", announced", sizeof(buf)); |
718 | if (strlen(buf) >= sizeof(buf) - 1) |
719 | errx(1, "%s buffer too small", __func__); |
720 | } |
721 | |
722 | return buf; |
723 | } |
724 | |
725 | const char * |
726 | fmt_ovs(u_int8_t validation_state, int sum) |
727 | { |
728 | switch (validation_state) { |
729 | case ROA_INVALID0x1: |
730 | return (sum ? "!" : "invalid"); |
731 | case ROA_VALID0x2: |
732 | return (sum ? "V" : "valid"); |
733 | default: |
734 | return (sum ? "N" : "not-found"); |
735 | } |
736 | } |
737 | |
738 | const char * |
739 | fmt_mem(long long num) |
740 | { |
741 | static char buf[16]; |
742 | |
743 | if (fmt_scaled(num, buf) == -1) |
744 | snprintf(buf, sizeof(buf), "%lldB", num); |
745 | |
746 | return (buf); |
747 | } |
748 | |
749 | const char * |
750 | fmt_errstr(u_int8_t errcode, u_int8_t subcode) |
751 | { |
752 | static char errbuf[256]; |
753 | const char *errstr = NULL((void*)0); |
754 | const char *suberr = NULL((void*)0); |
755 | int uk = 0; |
756 | |
757 | if (errcode == 0) /* no error */ |
758 | return NULL((void*)0); |
759 | |
760 | if (errcode < sizeof(errnames)/sizeof(char *)) |
761 | errstr = errnames[errcode]; |
762 | |
763 | switch (errcode) { |
764 | case ERR_HEADER: |
765 | if (subcode < sizeof(suberr_header_names)/sizeof(char *)) |
766 | suberr = suberr_header_names[subcode]; |
767 | else |
768 | uk = 1; |
769 | break; |
770 | case ERR_OPEN: |
771 | if (subcode < sizeof(suberr_open_names)/sizeof(char *)) |
772 | suberr = suberr_open_names[subcode]; |
773 | else |
774 | uk = 1; |
775 | break; |
776 | case ERR_UPDATE: |
777 | if (subcode < sizeof(suberr_update_names)/sizeof(char *)) |
778 | suberr = suberr_update_names[subcode]; |
779 | else |
780 | uk = 1; |
781 | break; |
782 | case ERR_HOLDTIMEREXPIRED: |
783 | if (subcode != 0) |
784 | uk = 1; |
785 | break; |
786 | case ERR_FSM: |
787 | if (subcode < sizeof(suberr_fsm_names)/sizeof(char *)) |
788 | suberr = suberr_fsm_names[subcode]; |
789 | else |
790 | uk = 1; |
791 | break; |
792 | case ERR_CEASE: |
793 | if (subcode < sizeof(suberr_cease_names)/sizeof(char *)) |
794 | suberr = suberr_cease_names[subcode]; |
795 | else |
796 | uk = 1; |
797 | break; |
798 | default: |
799 | snprintf(errbuf, sizeof(errbuf), |
800 | "unknown error code %u subcode %u", errcode, subcode); |
801 | return (errbuf); |
802 | } |
803 | |
804 | if (uk) |
805 | snprintf(errbuf, sizeof(errbuf), |
806 | "%s, unknown subcode %u", errstr, subcode); |
807 | else if (suberr == NULL((void*)0)) |
808 | return (errstr); |
809 | else |
810 | snprintf(errbuf, sizeof(errbuf), |
811 | "%s, %s", errstr, suberr); |
812 | |
813 | return (errbuf); |
814 | } |
815 | |
816 | const char * |
817 | fmt_attr(u_int8_t type, int flags) |
818 | { |
819 | #define CHECK_FLAGS(s, t, m) \ |
820 | if (((s) & ~(ATTR_DEFMASK(0x0f | 0x10) | (m))) != (t)) pflags = 1 |
821 | |
822 | static char cstr[48]; |
823 | int pflags = 0; |
824 | |
825 | switch (type) { |
826 | case ATTR_ORIGIN: |
827 | CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0); |
828 | strlcpy(cstr, "Origin", sizeof(cstr)); |
829 | break; |
830 | case ATTR_ASPATH: |
831 | CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0); |
832 | strlcpy(cstr, "AS-Path", sizeof(cstr)); |
833 | break; |
834 | case ATTR_AS4_PATH: |
835 | CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0); |
836 | strlcpy(cstr, "AS4-Path", sizeof(cstr)); |
837 | break; |
838 | case ATTR_NEXTHOP: |
839 | CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0); |
840 | strlcpy(cstr, "Nexthop", sizeof(cstr)); |
841 | break; |
842 | case ATTR_MED: |
843 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80, 0); |
844 | strlcpy(cstr, "Med", sizeof(cstr)); |
845 | break; |
846 | case ATTR_LOCALPREF: |
847 | CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0); |
848 | strlcpy(cstr, "Localpref", sizeof(cstr)); |
849 | break; |
850 | case ATTR_ATOMIC_AGGREGATE: |
851 | CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0); |
852 | strlcpy(cstr, "Atomic Aggregate", sizeof(cstr)); |
853 | break; |
854 | case ATTR_AGGREGATOR: |
855 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20); |
856 | strlcpy(cstr, "Aggregator", sizeof(cstr)); |
857 | break; |
858 | case ATTR_AS4_AGGREGATOR: |
859 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20); |
860 | strlcpy(cstr, "AS4-Aggregator", sizeof(cstr)); |
861 | break; |
862 | case ATTR_COMMUNITIES: |
863 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20); |
864 | strlcpy(cstr, "Communities", sizeof(cstr)); |
865 | break; |
866 | case ATTR_ORIGINATOR_ID: |
867 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80, 0); |
868 | strlcpy(cstr, "Originator Id", sizeof(cstr)); |
869 | break; |
870 | case ATTR_CLUSTER_LIST: |
871 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80, 0); |
872 | strlcpy(cstr, "Cluster Id List", sizeof(cstr)); |
873 | break; |
874 | case ATTR_MP_REACH_NLRI: |
875 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80, 0); |
876 | strlcpy(cstr, "MP Reach NLRI", sizeof(cstr)); |
877 | break; |
878 | case ATTR_MP_UNREACH_NLRI: |
879 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80, 0); |
880 | strlcpy(cstr, "MP Unreach NLRI", sizeof(cstr)); |
881 | break; |
882 | case ATTR_EXT_COMMUNITIES: |
883 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20); |
884 | strlcpy(cstr, "Ext. Communities", sizeof(cstr)); |
885 | break; |
886 | case ATTR_LARGE_COMMUNITIES: |
887 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20); |
888 | strlcpy(cstr, "Large Communities", sizeof(cstr)); |
889 | break; |
890 | default: |
891 | /* ignore unknown attributes */ |
892 | snprintf(cstr, sizeof(cstr), "Unknown Attribute #%u", type); |
893 | pflags = 1; |
894 | break; |
895 | } |
896 | if (flags != -1 && pflags) { |
897 | strlcat(cstr, " flags [", sizeof(cstr)); |
898 | if (flags & ATTR_OPTIONAL0x80) |
899 | strlcat(cstr, "O", sizeof(cstr)); |
900 | if (flags & ATTR_TRANSITIVE0x40) |
901 | strlcat(cstr, "T", sizeof(cstr)); |
902 | if (flags & ATTR_PARTIAL0x20) |
903 | strlcat(cstr, "P", sizeof(cstr)); |
904 | strlcat(cstr, "]", sizeof(cstr)); |
905 | } |
906 | return (cstr); |
907 | |
908 | #undef CHECK_FLAGS |
909 | } |
910 | |
911 | const char * |
912 | fmt_community(u_int16_t a, u_int16_t v) |
913 | { |
914 | static char buf[12]; |
915 | |
916 | if (a == COMMUNITY_WELLKNOWN0xffff) |
917 | switch (v) { |
918 | case COMMUNITY_GRACEFUL_SHUTDOWN0x0000: |
919 | return "GRACEFUL_SHUTDOWN"; |
920 | case COMMUNITY_NO_EXPORT0xff01: |
921 | return "NO_EXPORT"; |
922 | case COMMUNITY_NO_ADVERTISE0xff02: |
923 | return "NO_ADVERTISE"; |
924 | case COMMUNITY_NO_EXPSUBCONFED0xff03: |
925 | return "NO_EXPORT_SUBCONFED"; |
926 | case COMMUNITY_NO_PEER0xff04: |
927 | return "NO_PEER"; |
928 | case COMMUNITY_BLACKHOLE0x029A: |
929 | return "BLACKHOLE"; |
930 | default: |
931 | break; |
932 | } |
933 | |
934 | snprintf(buf, sizeof(buf), "%hu:%hu", a, v); |
935 | return buf; |
936 | } |
937 | |
938 | const char * |
939 | fmt_large_community(u_int32_t d1, u_int32_t d2, u_int32_t d3) |
940 | { |
941 | static char buf[33]; |
942 | |
943 | snprintf(buf, sizeof(buf), "%u:%u:%u", d1, d2, d3); |
944 | return buf; |
945 | } |
946 | |
947 | const char * |
948 | fmt_ext_community(u_int8_t *data) |
949 | { |
950 | static char buf[32]; |
951 | u_int64_t ext; |
952 | struct in_addr ip; |
953 | u_int32_t as4, u32; |
954 | u_int16_t as2, u16; |
955 | u_int8_t type, subtype; |
956 | |
957 | type = data[0]; |
958 | subtype = data[1]; |
959 | |
960 | switch (type) { |
961 | case EXT_COMMUNITY_TRANS_TWO_AS0x00: |
962 | memcpy(&as2, data + 2, sizeof(as2)); |
963 | memcpy(&u32, data + 4, sizeof(u32)); |
964 | snprintf(buf, sizeof(buf), "%s %s:%u", |
965 | log_ext_subtype(type, subtype), |
966 | log_as(ntohs(as2)(__uint16_t)(__builtin_constant_p(as2) ? (__uint16_t)(((__uint16_t )(as2) & 0xffU) << 8 | ((__uint16_t)(as2) & 0xff00U ) >> 8) : __swap16md(as2))), ntohl(u32)(__uint32_t)(__builtin_constant_p(u32) ? (__uint32_t)(((__uint32_t )(u32) & 0xff) << 24 | ((__uint32_t)(u32) & 0xff00 ) << 8 | ((__uint32_t)(u32) & 0xff0000) >> 8 | ((__uint32_t)(u32) & 0xff000000) >> 24) : __swap32md (u32))); |
967 | return buf; |
968 | case EXT_COMMUNITY_TRANS_IPV40x01: |
969 | memcpy(&ip, data + 2, sizeof(ip)); |
970 | memcpy(&u16, data + 6, sizeof(u16)); |
971 | snprintf(buf, sizeof(buf), "%s %s:%hu", |
972 | log_ext_subtype(type, subtype), |
973 | inet_ntoa(ip), ntohs(u16)(__uint16_t)(__builtin_constant_p(u16) ? (__uint16_t)(((__uint16_t )(u16) & 0xffU) << 8 | ((__uint16_t)(u16) & 0xff00U ) >> 8) : __swap16md(u16))); |
974 | return buf; |
975 | case EXT_COMMUNITY_TRANS_FOUR_AS0x02: |
976 | memcpy(&as4, data + 2, sizeof(as4)); |
977 | memcpy(&u16, data + 6, sizeof(u16)); |
978 | snprintf(buf, sizeof(buf), "%s %s:%hu", |
979 | log_ext_subtype(type, subtype), |
980 | log_as(ntohl(as4)(__uint32_t)(__builtin_constant_p(as4) ? (__uint32_t)(((__uint32_t )(as4) & 0xff) << 24 | ((__uint32_t)(as4) & 0xff00 ) << 8 | ((__uint32_t)(as4) & 0xff0000) >> 8 | ((__uint32_t)(as4) & 0xff000000) >> 24) : __swap32md (as4))), ntohs(u16)(__uint16_t)(__builtin_constant_p(u16) ? (__uint16_t)(((__uint16_t )(u16) & 0xffU) << 8 | ((__uint16_t)(u16) & 0xff00U ) >> 8) : __swap16md(u16))); |
981 | return buf; |
982 | case EXT_COMMUNITY_TRANS_OPAQUE0x03: |
983 | case EXT_COMMUNITY_TRANS_EVPN0x06: |
984 | memcpy(&ext, data, sizeof(ext)); |
985 | ext = be64toh(ext)(__uint64_t)(__builtin_constant_p(ext) ? (__uint64_t)((((__uint64_t )(ext) & 0xff) << 56) | ((__uint64_t)(ext) & 0xff00ULL ) << 40 | ((__uint64_t)(ext) & 0xff0000ULL) << 24 | ((__uint64_t)(ext) & 0xff000000ULL) << 8 | (( __uint64_t)(ext) & 0xff00000000ULL) >> 8 | ((__uint64_t )(ext) & 0xff0000000000ULL) >> 24 | ((__uint64_t)(ext ) & 0xff000000000000ULL) >> 40 | ((__uint64_t)(ext) & 0xff00000000000000ULL) >> 56) : __swap64md(ext)) & 0xffffffffffffLL; |
986 | snprintf(buf, sizeof(buf), "%s 0x%llx", |
987 | log_ext_subtype(type, subtype), (unsigned long long)ext); |
988 | return buf; |
989 | case EXT_COMMUNITY_NON_TRANS_OPAQUE0x43: |
990 | memcpy(&ext, data, sizeof(ext)); |
991 | ext = be64toh(ext)(__uint64_t)(__builtin_constant_p(ext) ? (__uint64_t)((((__uint64_t )(ext) & 0xff) << 56) | ((__uint64_t)(ext) & 0xff00ULL ) << 40 | ((__uint64_t)(ext) & 0xff0000ULL) << 24 | ((__uint64_t)(ext) & 0xff000000ULL) << 8 | (( __uint64_t)(ext) & 0xff00000000ULL) >> 8 | ((__uint64_t )(ext) & 0xff0000000000ULL) >> 24 | ((__uint64_t)(ext ) & 0xff000000000000ULL) >> 40 | ((__uint64_t)(ext) & 0xff00000000000000ULL) >> 56) : __swap64md(ext)) & 0xffffffffffffLL; |
992 | switch (ext) { |
993 | case EXT_COMMUNITY_OVS_VALID0: |
994 | snprintf(buf, sizeof(buf), "%s valid ", |
995 | log_ext_subtype(type, subtype)); |
996 | return buf; |
997 | case EXT_COMMUNITY_OVS_NOTFOUND1: |
998 | snprintf(buf, sizeof(buf), "%s not-found ", |
999 | log_ext_subtype(type, subtype)); |
1000 | return buf; |
1001 | case EXT_COMMUNITY_OVS_INVALID2: |
1002 | snprintf(buf, sizeof(buf), "%s invalid ", |
1003 | log_ext_subtype(type, subtype)); |
1004 | return buf; |
1005 | default: |
1006 | snprintf(buf, sizeof(buf), "%s 0x%llx ", |
1007 | log_ext_subtype(type, subtype), |
1008 | (unsigned long long)ext); |
1009 | return buf; |
1010 | } |
1011 | break; |
1012 | default: |
1013 | memcpy(&ext, data, sizeof(ext)); |
1014 | snprintf(buf, sizeof(buf), "%s 0x%llx", |
1015 | log_ext_subtype(type, subtype), |
1016 | (unsigned long long)be64toh(ext)(__uint64_t)(__builtin_constant_p(ext) ? (__uint64_t)((((__uint64_t )(ext) & 0xff) << 56) | ((__uint64_t)(ext) & 0xff00ULL ) << 40 | ((__uint64_t)(ext) & 0xff0000ULL) << 24 | ((__uint64_t)(ext) & 0xff000000ULL) << 8 | (( __uint64_t)(ext) & 0xff00000000ULL) >> 8 | ((__uint64_t )(ext) & 0xff0000000000ULL) >> 24 | ((__uint64_t)(ext ) & 0xff000000000000ULL) >> 40 | ((__uint64_t)(ext) & 0xff00000000000000ULL) >> 56) : __swap64md(ext))); |
1017 | return buf; |
1018 | } |
1019 | } |
1020 | |
1021 | const char * |
1022 | fmt_set_type(struct ctl_show_set *set) |
1023 | { |
1024 | switch (set->type) { |
1025 | case ROA_SET: |
1026 | return "ROA"; |
1027 | case PREFIX_SET: |
1028 | return "PREFIX"; |
1029 | case ORIGIN_SET: |
1030 | return "ORIGIN"; |
1031 | case ASNUM_SET: |
1032 | return "ASNUM"; |
1033 | default: |
1034 | return "BULA"; |
1035 | } |
1036 | } |
1037 | |
1038 | void |
1039 | send_filterset(struct imsgbuf *i, struct filter_set_head *set) |
1040 | { |
1041 | struct filter_set *s; |
1042 | |
1043 | while ((s = TAILQ_FIRST(set)((set)->tqh_first)) != NULL((void*)0)) { |
1044 | imsg_compose(i, IMSG_FILTER_SET, 0, 0, -1, s, |
1045 | sizeof(struct filter_set)); |
1046 | TAILQ_REMOVE(set, s, entry)do { if (((s)->entry.tqe_next) != ((void*)0)) (s)->entry .tqe_next->entry.tqe_prev = (s)->entry.tqe_prev; else ( set)->tqh_last = (s)->entry.tqe_prev; *(s)->entry.tqe_prev = (s)->entry.tqe_next; ; ; } while (0); |
1047 | free(s); |
1048 | } |
1049 | } |
1050 | |
1051 | void |
1052 | network_bulk(struct parse_result *res) |
1053 | { |
1054 | struct network_config net; |
1055 | struct filter_set *s = NULL((void*)0); |
1056 | struct bgpd_addr h; |
1057 | char *line = NULL((void*)0); |
1058 | size_t linesize = 0; |
1059 | ssize_t linelen; |
1060 | u_int8_t len; |
1061 | FILE *f; |
1062 | |
1063 | if ((f = fdopen(STDIN_FILENO0, "r")) == NULL((void*)0)) |
1064 | err(1, "Failed to open stdin\n"); |
1065 | |
1066 | while ((linelen = getline(&line, &linesize, f)) != -1) { |
Although the value stored to 'linelen' is used in the enclosing expression, the value is never actually read from 'linelen' | |
1067 | char *b, *buf = line; |
1068 | while ((b = strsep(&buf, " \t\n")) != NULL((void*)0)) { |
1069 | if (*b == '\0') /* skip empty tokens */ |
1070 | continue; |
1071 | /* Stop processing after a comment */ |
1072 | if (*b == '#') |
1073 | break; |
1074 | bzero(&net, sizeof(net)); |
1075 | if (parse_prefix(b, strlen(b), &h, &len) != 1) |
1076 | errx(1, "bad prefix: %s", b); |
1077 | net.prefix = h; |
1078 | net.prefixlen = len; |
1079 | net.rd = res->rd; |
1080 | |
1081 | if (res->action == NETWORK_BULK_ADD) { |
1082 | imsg_compose(ibuf, IMSG_NETWORK_ADD, |
1083 | 0, 0, -1, &net, sizeof(net)); |
1084 | /* |
1085 | * can't use send_filterset since that |
1086 | * would free the set. |
1087 | */ |
1088 | TAILQ_FOREACH(s, &res->set, entry)for((s) = ((&res->set)->tqh_first); (s) != ((void*) 0); (s) = ((s)->entry.tqe_next)) { |
1089 | imsg_compose(ibuf, |
1090 | IMSG_FILTER_SET, |
1091 | 0, 0, -1, s, sizeof(*s)); |
1092 | } |
1093 | imsg_compose(ibuf, IMSG_NETWORK_DONE, |
1094 | 0, 0, -1, NULL((void*)0), 0); |
1095 | } else |
1096 | imsg_compose(ibuf, IMSG_NETWORK_REMOVE, |
1097 | 0, 0, -1, &net, sizeof(net)); |
1098 | } |
1099 | } |
1100 | free(line); |
1101 | if (ferror(f)(!__isthreaded ? (((f)->_flags & 0x0040) != 0) : (ferror )(f))) |
1102 | err(1, "getline"); |
1103 | fclose(f); |
1104 | } |
1105 | |
1106 | void |
1107 | show_mrt_dump_neighbors(struct mrt_rib *mr, struct mrt_peer *mp, void *arg) |
1108 | { |
1109 | struct mrt_peer_entry *p; |
1110 | struct in_addr ina; |
1111 | u_int16_t i; |
1112 | |
1113 | ina.s_addr = htonl(mp->bgp_id)(__uint32_t)(__builtin_constant_p(mp->bgp_id) ? (__uint32_t )(((__uint32_t)(mp->bgp_id) & 0xff) << 24 | ((__uint32_t )(mp->bgp_id) & 0xff00) << 8 | ((__uint32_t)(mp-> bgp_id) & 0xff0000) >> 8 | ((__uint32_t)(mp->bgp_id ) & 0xff000000) >> 24) : __swap32md(mp->bgp_id)); |
1114 | printf("view: %s BGP ID: %s Number of peers: %u\n\n", |
1115 | mp->view, inet_ntoa(ina), mp->npeers); |
1116 | printf("%-30s %8s %15s\n", "Neighbor", "AS", "BGP ID"); |
1117 | for (i = 0; i < mp->npeers; i++) { |
1118 | p = &mp->peers[i]; |
1119 | ina.s_addr = htonl(p->bgp_id)(__uint32_t)(__builtin_constant_p(p->bgp_id) ? (__uint32_t )(((__uint32_t)(p->bgp_id) & 0xff) << 24 | ((__uint32_t )(p->bgp_id) & 0xff00) << 8 | ((__uint32_t)(p-> bgp_id) & 0xff0000) >> 8 | ((__uint32_t)(p->bgp_id ) & 0xff000000) >> 24) : __swap32md(p->bgp_id)); |
1120 | printf("%-30s %8u %15s\n", log_addr(&p->addr), p->asnum, |
1121 | inet_ntoa(ina)); |
1122 | } |
1123 | /* we only print the first message */ |
1124 | exit(0); |
1125 | } |
1126 | |
1127 | void |
1128 | show_mrt_dump(struct mrt_rib *mr, struct mrt_peer *mp, void *arg) |
1129 | { |
1130 | struct ctl_show_rib ctl; |
1131 | struct parse_result res; |
1132 | struct ctl_show_rib_request *req = arg; |
1133 | struct mrt_rib_entry *mre; |
1134 | time_t now; |
1135 | u_int16_t i, j; |
1136 | |
1137 | memset(&res, 0, sizeof(res)); |
1138 | res.flags = req->flags; |
1139 | now = time(NULL((void*)0)); |
1140 | |
1141 | for (i = 0; i < mr->nentries; i++) { |
1142 | mre = &mr->entries[i]; |
1143 | bzero(&ctl, sizeof(ctl)); |
1144 | ctl.prefix = mr->prefix; |
1145 | ctl.prefixlen = mr->prefixlen; |
1146 | if (mre->originated <= now) |
1147 | ctl.age = now - mre->originated; |
1148 | ctl.true_nexthop = mre->nexthop; |
1149 | ctl.exit_nexthop = mre->nexthop; |
1150 | ctl.origin = mre->origin; |
1151 | ctl.local_pref = mre->local_pref; |
1152 | ctl.med = mre->med; |
1153 | /* weight is not part of the mrt dump so it can't be set */ |
1154 | if (mr->add_path) { |
1155 | ctl.flags |= F_PREF_PATH_ID0x40; |
1156 | ctl.path_id = mre->path_id; |
1157 | } |
1158 | |
1159 | if (mre->peer_idx < mp->npeers) { |
1160 | ctl.remote_addr = mp->peers[mre->peer_idx].addr; |
1161 | ctl.remote_id = mp->peers[mre->peer_idx].bgp_id; |
1162 | } |
1163 | |
1164 | /* filter by neighbor */ |
1165 | if (req->neighbor.addr.aid != AID_UNSPEC0 && |
1166 | memcmp(&req->neighbor.addr, &ctl.remote_addr, |
1167 | sizeof(ctl.remote_addr)) != 0) |
1168 | continue; |
1169 | /* filter by AF */ |
1170 | if (req->aid && req->aid != ctl.prefix.aid) |
1171 | return; |
1172 | /* filter by prefix */ |
1173 | if (req->prefix.aid != AID_UNSPEC0) { |
1174 | if (req->flags & F_LONGER0x0200) { |
1175 | if (req->prefixlen > ctl.prefixlen) |
1176 | return; |
1177 | if (prefix_compare(&req->prefix, &ctl.prefix, |
1178 | req->prefixlen)) |
1179 | return; |
1180 | } else if (req->flags & F_SHORTER0x0400) { |
1181 | if (req->prefixlen < ctl.prefixlen) |
1182 | return; |
1183 | if (prefix_compare(&req->prefix, &ctl.prefix, |
1184 | ctl.prefixlen)) |
1185 | return; |
1186 | } else { |
1187 | if (req->prefixlen != ctl.prefixlen) |
1188 | return; |
1189 | if (prefix_compare(&req->prefix, &ctl.prefix, |
1190 | req->prefixlen)) |
1191 | return; |
1192 | } |
1193 | } |
1194 | /* filter by AS */ |
1195 | if (req->as.type != AS_UNDEF && |
1196 | !match_aspath(mre->aspath, mre->aspath_len, &req->as)) |
1197 | continue; |
1198 | |
1199 | output->rib(&ctl, mre->aspath, mre->aspath_len, &res); |
1200 | if (req->flags & F_CTL_DETAIL0x1000) { |
1201 | for (j = 0; j < mre->nattrs; j++) |
1202 | output->attr(mre->attrs[j].attr, |
1203 | mre->attrs[j].attr_len, req->flags, 0); |
1204 | } |
1205 | } |
1206 | } |
1207 | |
1208 | void |
1209 | network_mrt_dump(struct mrt_rib *mr, struct mrt_peer *mp, void *arg) |
1210 | { |
1211 | struct ctl_show_rib ctl; |
1212 | struct network_config net; |
1213 | struct ctl_show_rib_request *req = arg; |
1214 | struct mrt_rib_entry *mre; |
1215 | struct ibuf *msg; |
1216 | time_t now; |
1217 | u_int16_t i, j; |
1218 | |
1219 | /* can't announce more than one path so ignore add-path */ |
1220 | if (mr->add_path) |
1221 | return; |
1222 | |
1223 | now = time(NULL((void*)0)); |
1224 | for (i = 0; i < mr->nentries; i++) { |
1225 | mre = &mr->entries[i]; |
1226 | bzero(&ctl, sizeof(ctl)); |
1227 | ctl.prefix = mr->prefix; |
1228 | ctl.prefixlen = mr->prefixlen; |
1229 | if (mre->originated <= now) |
1230 | ctl.age = now - mre->originated; |
1231 | ctl.true_nexthop = mre->nexthop; |
1232 | ctl.exit_nexthop = mre->nexthop; |
1233 | ctl.origin = mre->origin; |
1234 | ctl.local_pref = mre->local_pref; |
1235 | ctl.med = mre->med; |
1236 | |
1237 | if (mre->peer_idx < mp->npeers) { |
1238 | ctl.remote_addr = mp->peers[mre->peer_idx].addr; |
1239 | ctl.remote_id = mp->peers[mre->peer_idx].bgp_id; |
1240 | } |
1241 | |
1242 | /* filter by neighbor */ |
1243 | if (req->neighbor.addr.aid != AID_UNSPEC0 && |
1244 | memcmp(&req->neighbor.addr, &ctl.remote_addr, |
1245 | sizeof(ctl.remote_addr)) != 0) |
1246 | continue; |
1247 | /* filter by AF */ |
1248 | if (req->aid && req->aid != ctl.prefix.aid) |
1249 | return; |
1250 | /* filter by prefix */ |
1251 | if (req->prefix.aid != AID_UNSPEC0) { |
1252 | if (!prefix_compare(&req->prefix, &ctl.prefix, |
1253 | req->prefixlen)) { |
1254 | if (req->flags & F_LONGER0x0200) { |
1255 | if (req->prefixlen > ctl.prefixlen) |
1256 | return; |
1257 | } else if (req->prefixlen != ctl.prefixlen) |
1258 | return; |
1259 | } else |
1260 | return; |
1261 | } |
1262 | /* filter by AS */ |
1263 | if (req->as.type != AS_UNDEF && |
1264 | !match_aspath(mre->aspath, mre->aspath_len, &req->as)) |
1265 | continue; |
1266 | |
1267 | bzero(&net, sizeof(net)); |
1268 | net.prefix = ctl.prefix; |
1269 | net.prefixlen = ctl.prefixlen; |
1270 | net.type = NETWORK_MRTCLONE; |
1271 | /* XXX rd can't be set and will be 0 */ |
1272 | |
1273 | imsg_compose(ibuf, IMSG_NETWORK_ADD, 0, 0, -1, |
1274 | &net, sizeof(net)); |
1275 | if ((msg = imsg_create(ibuf, IMSG_NETWORK_ASPATH, |
1276 | 0, 0, sizeof(ctl) + mre->aspath_len)) == NULL((void*)0)) |
1277 | errx(1, "imsg_create failure"); |
1278 | if (imsg_add(msg, &ctl, sizeof(ctl)) == -1 || |
1279 | imsg_add(msg, mre->aspath, mre->aspath_len) == -1) |
1280 | errx(1, "imsg_add failure"); |
1281 | imsg_close(ibuf, msg); |
1282 | for (j = 0; j < mre->nattrs; j++) |
1283 | imsg_compose(ibuf, IMSG_NETWORK_ATTR, 0, 0, -1, |
1284 | mre->attrs[j].attr, mre->attrs[j].attr_len); |
1285 | imsg_compose(ibuf, IMSG_NETWORK_DONE, 0, 0, -1, NULL((void*)0), 0); |
1286 | |
1287 | while (ibuf->w.queued) { |
1288 | if (msgbuf_write(&ibuf->w) <= 0 && errno(*__errno()) != EAGAIN35) |
1289 | err(1, "write error"); |
1290 | } |
1291 | } |
1292 | } |
1293 | |
1294 | static const char * |
1295 | fmt_time(struct timespec *t) |
1296 | { |
1297 | static char timebuf[32]; |
1298 | static struct timespec prevtime; |
1299 | struct timespec temp; |
1300 | |
1301 | timespecsub(t, &prevtime, &temp)do { (&temp)->tv_sec = (t)->tv_sec - (&prevtime )->tv_sec; (&temp)->tv_nsec = (t)->tv_nsec - (& prevtime)->tv_nsec; if ((&temp)->tv_nsec < 0) { ( &temp)->tv_sec--; (&temp)->tv_nsec += 1000000000L ; } } while (0); |
1302 | snprintf(timebuf, sizeof(timebuf), "%lld.%06ld", |
1303 | (long long)temp.tv_sec, temp.tv_nsec / 1000); |
1304 | prevtime = *t; |
1305 | return (timebuf); |
1306 | } |
1307 | |
1308 | void |
1309 | show_mrt_state(struct mrt_bgp_state *ms, void *arg) |
1310 | { |
1311 | printf("%s %s[%u] -> ", fmt_time(&ms->time), |
1312 | log_addr(&ms->src), ms->src_as); |
1313 | printf("%s[%u]: %s -> %s\n", log_addr(&ms->dst), ms->dst_as, |
1314 | statenames[ms->old_state], statenames[ms->new_state]); |
1315 | } |
1316 | |
1317 | static void |
1318 | print_afi(u_char *p, u_int8_t len) |
1319 | { |
1320 | u_int16_t afi; |
1321 | u_int8_t safi, aid; |
1322 | |
1323 | if (len != 4) { |
1324 | printf("bad length"); |
1325 | return; |
1326 | } |
1327 | |
1328 | /* afi, 2 byte */ |
1329 | memcpy(&afi, p, sizeof(afi)); |
1330 | afi = ntohs(afi)(__uint16_t)(__builtin_constant_p(afi) ? (__uint16_t)(((__uint16_t )(afi) & 0xffU) << 8 | ((__uint16_t)(afi) & 0xff00U ) >> 8) : __swap16md(afi)); |
1331 | p += 2; |
1332 | /* reserved, 1 byte */ |
1333 | p += 1; |
1334 | /* safi, 1 byte */ |
1335 | memcpy(&safi, p, sizeof(safi)); |
1336 | if (afi2aid(afi, safi, &aid) == -1) |
1337 | printf("unkown afi %u safi %u", afi, safi); |
1338 | else |
1339 | printf("%s", aid2str(aid)); |
1340 | } |
1341 | |
1342 | static void |
1343 | print_capability(u_int8_t capa_code, u_char *p, u_int8_t len) |
1344 | { |
1345 | switch (capa_code) { |
1346 | case CAPA_MP: |
1347 | printf("multiprotocol capability: "); |
1348 | print_afi(p, len); |
1349 | break; |
1350 | case CAPA_REFRESH: |
1351 | printf("route refresh capability"); |
1352 | break; |
1353 | case CAPA_RESTART: |
1354 | printf("graceful restart capability"); |
1355 | /* XXX there is more needed here */ |
1356 | break; |
1357 | case CAPA_AS4BYTE: |
1358 | printf("4-byte AS num capability: "); |
1359 | if (len == 4) { |
1360 | u_int32_t as; |
1361 | memcpy(&as, p, sizeof(as)); |
1362 | as = ntohl(as)(__uint32_t)(__builtin_constant_p(as) ? (__uint32_t)(((__uint32_t )(as) & 0xff) << 24 | ((__uint32_t)(as) & 0xff00 ) << 8 | ((__uint32_t)(as) & 0xff0000) >> 8 | ((__uint32_t)(as) & 0xff000000) >> 24) : __swap32md (as)); |
1363 | printf("AS %u", as); |
1364 | } else |
1365 | printf("bad length"); |
1366 | break; |
1367 | case CAPA_ADD_PATH: |
1368 | printf("add-path capability"); |
1369 | /* XXX there is more needed here */ |
1370 | break; |
1371 | case CAPA_ENHANCED_RR: |
1372 | printf("enhanced route refresh capability"); |
1373 | break; |
1374 | default: |
1375 | printf("unknown capability %u length %u", capa_code, len); |
1376 | break; |
1377 | } |
1378 | } |
1379 | |
1380 | static void |
1381 | print_notification(u_int8_t errcode, u_int8_t subcode) |
1382 | { |
1383 | const char *suberrname = NULL((void*)0); |
1384 | int uk = 0; |
1385 | |
1386 | switch (errcode) { |
1387 | case ERR_HEADER: |
1388 | if (subcode >= sizeof(suberr_header_names)/sizeof(char *)) |
1389 | uk = 1; |
1390 | else |
1391 | suberrname = suberr_header_names[subcode]; |
1392 | break; |
1393 | case ERR_OPEN: |
1394 | if (subcode >= sizeof(suberr_open_names)/sizeof(char *)) |
1395 | uk = 1; |
1396 | else |
1397 | suberrname = suberr_open_names[subcode]; |
1398 | break; |
1399 | case ERR_UPDATE: |
1400 | if (subcode >= sizeof(suberr_update_names)/sizeof(char *)) |
1401 | uk = 1; |
1402 | else |
1403 | suberrname = suberr_update_names[subcode]; |
1404 | break; |
1405 | case ERR_CEASE: |
1406 | if (subcode >= sizeof(suberr_cease_names)/sizeof(char *)) |
1407 | uk = 1; |
1408 | else |
1409 | suberrname = suberr_cease_names[subcode]; |
1410 | break; |
1411 | case ERR_HOLDTIMEREXPIRED: |
1412 | if (subcode != 0) |
1413 | uk = 1; |
1414 | break; |
1415 | case ERR_FSM: |
1416 | if (subcode >= sizeof(suberr_fsm_names)/sizeof(char *)) |
1417 | uk = 1; |
1418 | else |
1419 | suberrname = suberr_fsm_names[subcode]; |
1420 | break; |
1421 | default: |
1422 | printf("unknown errcode %u, subcode %u", |
1423 | errcode, subcode); |
1424 | return; |
1425 | } |
1426 | |
1427 | if (uk) |
1428 | printf("%s, unknown subcode %u", errnames[errcode], subcode); |
1429 | else { |
1430 | if (suberrname == NULL((void*)0)) |
1431 | printf("%s", errnames[errcode]); |
1432 | else |
1433 | printf("%s, %s", errnames[errcode], suberrname); |
1434 | } |
1435 | } |
1436 | |
1437 | static int |
1438 | show_mrt_capabilities(u_char *p, u_int16_t len) |
1439 | { |
1440 | u_int16_t totlen = len; |
1441 | u_int8_t capa_code, capa_len; |
1442 | |
1443 | while (len > 2) { |
1444 | memcpy(&capa_code, p, sizeof(capa_code)); |
1445 | p += sizeof(capa_code); |
1446 | len -= sizeof(capa_code); |
1447 | memcpy(&capa_len, p, sizeof(capa_len)); |
1448 | p += sizeof(capa_len); |
1449 | len -= sizeof(capa_len); |
1450 | if (len < capa_len) { |
1451 | printf("capa_len %u exceeds remaining length", |
1452 | capa_len); |
1453 | return (-1); |
1454 | } |
1455 | printf("\n "); |
1456 | print_capability(capa_code, p, capa_len); |
1457 | p += capa_len; |
1458 | len -= capa_len; |
1459 | } |
1460 | if (len != 0) { |
1461 | printf("length missmatch while capability parsing"); |
1462 | return (-1); |
1463 | } |
1464 | return (totlen); |
1465 | } |
1466 | |
1467 | static void |
1468 | show_mrt_open(u_char *p, u_int16_t len) |
1469 | { |
1470 | u_int8_t version, optparamlen; |
1471 | u_int16_t short_as, holdtime; |
1472 | struct in_addr bgpid; |
1473 | |
1474 | /* length check up to optparamlen already happened */ |
1475 | memcpy(&version, p, sizeof(version)); |
1476 | p += sizeof(version); |
1477 | len -= sizeof(version); |
1478 | memcpy(&short_as, p, sizeof(short_as)); |
1479 | p += sizeof(short_as); |
1480 | len -= sizeof(short_as); |
1481 | short_as = ntohs(short_as)(__uint16_t)(__builtin_constant_p(short_as) ? (__uint16_t)((( __uint16_t)(short_as) & 0xffU) << 8 | ((__uint16_t) (short_as) & 0xff00U) >> 8) : __swap16md(short_as)); |
1482 | memcpy(&holdtime, p, sizeof(holdtime)); |
1483 | holdtime = ntohs(holdtime)(__uint16_t)(__builtin_constant_p(holdtime) ? (__uint16_t)((( __uint16_t)(holdtime) & 0xffU) << 8 | ((__uint16_t) (holdtime) & 0xff00U) >> 8) : __swap16md(holdtime)); |
1484 | p += sizeof(holdtime); |
1485 | len -= sizeof(holdtime); |
1486 | memcpy(&bgpid, p, sizeof(bgpid)); |
1487 | p += sizeof(bgpid); |
1488 | len -= sizeof(bgpid); |
1489 | memcpy(&optparamlen, p, sizeof(optparamlen)); |
1490 | p += sizeof(optparamlen); |
1491 | len -= sizeof(optparamlen); |
1492 | |
1493 | printf("\n "); |
1494 | printf("Version: %d AS: %u Holdtime: %u BGP Id: %s Paramlen: %u", |
1495 | version, short_as, holdtime, inet_ntoa(bgpid), optparamlen); |
1496 | if (optparamlen != len) { |
1497 | printf("optional parameter length mismatch"); |
1498 | return; |
1499 | } |
1500 | while (len > 2) { |
1501 | u_int8_t op_type, op_len; |
1502 | int r; |
1503 | |
1504 | memcpy(&op_type, p, sizeof(op_type)); |
1505 | p += sizeof(op_type); |
1506 | len -= sizeof(op_type); |
1507 | memcpy(&op_len, p, sizeof(op_len)); |
1508 | p += sizeof(op_len); |
1509 | len -= sizeof(op_len); |
1510 | |
1511 | printf("\n "); |
1512 | switch (op_type) { |
1513 | case OPT_PARAM_CAPABILITIES: |
1514 | printf("Capabilities: size %u", op_len); |
1515 | r = show_mrt_capabilities(p, op_len); |
1516 | if (r == -1) |
1517 | return; |
1518 | p += r; |
1519 | len -= r; |
1520 | break; |
1521 | case OPT_PARAM_AUTH: |
1522 | default: |
1523 | printf("unsupported optional parameter: type %u", |
1524 | op_type); |
1525 | return; |
1526 | } |
1527 | } |
1528 | if (len != 0) { |
1529 | printf("optional parameter encoding error"); |
1530 | return; |
1531 | } |
1532 | } |
1533 | |
1534 | static void |
1535 | show_mrt_notification(u_char *p, u_int16_t len) |
1536 | { |
1537 | u_int16_t i; |
1538 | u_int8_t errcode, subcode; |
1539 | size_t reason_len; |
1540 | char reason[REASON_LEN256]; |
1541 | |
1542 | memcpy(&errcode, p, sizeof(errcode)); |
1543 | p += sizeof(errcode); |
1544 | len -= sizeof(errcode); |
1545 | |
1546 | memcpy(&subcode, p, sizeof(subcode)); |
1547 | p += sizeof(subcode); |
1548 | len -= sizeof(subcode); |
1549 | |
1550 | printf("\n "); |
1551 | print_notification(errcode, subcode); |
1552 | |
1553 | if (errcode == ERR_CEASE && (subcode == ERR_CEASE_ADMIN_DOWN || |
1554 | subcode == ERR_CEASE_ADMIN_RESET)) { |
1555 | if (len > 1) { |
1556 | reason_len = *p++; |
1557 | len--; |
1558 | if (len < reason_len) { |
1559 | printf("truncated shutdown reason"); |
1560 | return; |
1561 | } |
1562 | if (reason_len > REASON_LEN256 - 1) { |
1563 | printf("overly long shutdown reason"); |
1564 | return; |
1565 | } |
1566 | memcpy(reason, p, reason_len); |
1567 | reason[reason_len] = '\0'; |
1568 | printf("shutdown reason: \"%s\"", |
1569 | log_reason(reason)); |
1570 | p += reason_len; |
1571 | len -= reason_len; |
1572 | } |
1573 | } |
1574 | if (errcode == ERR_OPEN && subcode == ERR_OPEN_CAPA) { |
1575 | int r; |
1576 | |
1577 | r = show_mrt_capabilities(p, len); |
1578 | if (r == -1) |
1579 | return; |
1580 | p += r; |
1581 | len -= r; |
1582 | } |
1583 | |
1584 | if (len > 0) { |
1585 | printf("\n additional data %u bytes", len); |
1586 | for (i = 0; i < len; i++) { |
1587 | if (i % 16 == 0) |
1588 | printf("\n "); |
1589 | if (i % 8 == 0) |
1590 | printf(" "); |
1591 | printf(" %02X", *p++); |
1592 | } |
1593 | } |
1594 | } |
1595 | |
1596 | /* XXX this function does not handle JSON output */ |
1597 | static void |
1598 | show_mrt_update(u_char *p, u_int16_t len, int reqflags, int addpath) |
1599 | { |
1600 | struct bgpd_addr prefix; |
1601 | int pos; |
1602 | u_int32_t pathid; |
1603 | u_int16_t wlen, alen; |
1604 | u_int8_t prefixlen; |
1605 | |
1606 | if (len < sizeof(wlen)) { |
1607 | printf("bad length"); |
1608 | return; |
1609 | } |
1610 | memcpy(&wlen, p, sizeof(wlen)); |
1611 | wlen = ntohs(wlen)(__uint16_t)(__builtin_constant_p(wlen) ? (__uint16_t)(((__uint16_t )(wlen) & 0xffU) << 8 | ((__uint16_t)(wlen) & 0xff00U ) >> 8) : __swap16md(wlen)); |
1612 | p += sizeof(wlen); |
1613 | len -= sizeof(wlen); |
1614 | |
1615 | if (len < wlen) { |
1616 | printf("bad withdraw length"); |
1617 | return; |
1618 | } |
1619 | if (wlen > 0) { |
1620 | printf("\n Withdrawn prefixes:"); |
1621 | while (wlen > 0) { |
1622 | if (addpath) { |
1623 | if (wlen <= sizeof(pathid)) { |
1624 | printf("bad withdraw prefix"); |
1625 | return; |
1626 | } |
1627 | memcpy(&pathid, p, sizeof(pathid)); |
1628 | pathid = ntohl(pathid)(__uint32_t)(__builtin_constant_p(pathid) ? (__uint32_t)(((__uint32_t )(pathid) & 0xff) << 24 | ((__uint32_t)(pathid) & 0xff00) << 8 | ((__uint32_t)(pathid) & 0xff0000) >> 8 | ((__uint32_t)(pathid) & 0xff000000) >> 24) : __swap32md (pathid)); |
1629 | p += sizeof(pathid); |
1630 | len -= sizeof(pathid); |
1631 | wlen -= sizeof(pathid); |
1632 | } |
1633 | if ((pos = nlri_get_prefix(p, wlen, &prefix, |
1634 | &prefixlen)) == -1) { |
1635 | printf("bad withdraw prefix"); |
1636 | return; |
1637 | } |
1638 | printf(" %s/%u", log_addr(&prefix), prefixlen); |
1639 | if (addpath) |
1640 | printf(" path-id %u", pathid); |
1641 | p += pos; |
1642 | len -= pos; |
1643 | wlen -= pos; |
1644 | } |
1645 | } |
1646 | |
1647 | if (len < sizeof(alen)) { |
1648 | printf("bad length"); |
1649 | return; |
1650 | } |
1651 | memcpy(&alen, p, sizeof(alen)); |
1652 | alen = ntohs(alen)(__uint16_t)(__builtin_constant_p(alen) ? (__uint16_t)(((__uint16_t )(alen) & 0xffU) << 8 | ((__uint16_t)(alen) & 0xff00U ) >> 8) : __swap16md(alen)); |
1653 | p += sizeof(alen); |
1654 | len -= sizeof(alen); |
1655 | |
1656 | if (len < alen) { |
1657 | printf("bad attribute length"); |
1658 | return; |
1659 | } |
1660 | printf("\n"); |
1661 | /* alen attributes here */ |
1662 | while (alen > 3) { |
1663 | u_int8_t flags; |
1664 | u_int16_t attrlen; |
1665 | |
1666 | flags = p[0]; |
1667 | /* type = p[1]; */ |
1668 | |
1669 | /* get the attribute length */ |
1670 | if (flags & ATTR_EXTLEN0x10) { |
1671 | if (len < sizeof(attrlen) + 2) |
1672 | printf("bad attribute length"); |
1673 | memcpy(&attrlen, &p[2], sizeof(attrlen)); |
1674 | attrlen = ntohs(attrlen)(__uint16_t)(__builtin_constant_p(attrlen) ? (__uint16_t)(((__uint16_t )(attrlen) & 0xffU) << 8 | ((__uint16_t)(attrlen) & 0xff00U) >> 8) : __swap16md(attrlen)); |
1675 | attrlen += sizeof(attrlen) + 2; |
1676 | } else { |
1677 | attrlen = p[2]; |
1678 | attrlen += 1 + 2; |
1679 | } |
1680 | |
1681 | output->attr(p, attrlen, reqflags, addpath); |
1682 | p += attrlen; |
1683 | alen -= attrlen; |
1684 | len -= attrlen; |
1685 | } |
1686 | |
1687 | if (len > 0) { |
1688 | printf(" NLRI prefixes:"); |
1689 | while (len > 0) { |
1690 | if (addpath) { |
1691 | if (len <= sizeof(pathid)) { |
1692 | printf(" bad nlri prefix: pathid, len %d", len); |
1693 | return; |
1694 | } |
1695 | memcpy(&pathid, p, sizeof(pathid)); |
1696 | pathid = ntohl(pathid)(__uint32_t)(__builtin_constant_p(pathid) ? (__uint32_t)(((__uint32_t )(pathid) & 0xff) << 24 | ((__uint32_t)(pathid) & 0xff00) << 8 | ((__uint32_t)(pathid) & 0xff0000) >> 8 | ((__uint32_t)(pathid) & 0xff000000) >> 24) : __swap32md (pathid)); |
1697 | p += sizeof(pathid); |
1698 | len -= sizeof(pathid); |
1699 | } |
1700 | if ((pos = nlri_get_prefix(p, len, &prefix, |
1701 | &prefixlen)) == -1) { |
1702 | printf(" bad nlri prefix"); |
1703 | return; |
1704 | } |
1705 | printf(" %s/%u", log_addr(&prefix), prefixlen); |
1706 | if (addpath) |
1707 | printf(" path-id %u", pathid); |
1708 | p += pos; |
1709 | len -= pos; |
1710 | } |
1711 | } |
1712 | } |
1713 | |
1714 | void |
1715 | show_mrt_msg(struct mrt_bgp_msg *mm, void *arg) |
1716 | { |
1717 | static const u_int8_t marker[MSGSIZE_HEADER_MARKER16] = { |
1718 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1719 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
1720 | u_char *p; |
1721 | u_int16_t len; |
1722 | u_int8_t type; |
1723 | struct ctl_show_rib_request *req = arg; |
1724 | |
1725 | printf("%s %s[%u] -> ", fmt_time(&mm->time), |
1726 | log_addr(&mm->src), mm->src_as); |
1727 | printf("%s[%u]: size %u%s ", log_addr(&mm->dst), mm->dst_as, |
1728 | mm->msg_len, mm->add_path ? " addpath" : ""); |
1729 | p = mm->msg; |
1730 | len = mm->msg_len; |
1731 | |
1732 | if (len < MSGSIZE_HEADER19) { |
1733 | printf("illegal header length: %u byte\n", len); |
1734 | return; |
1735 | } |
1736 | |
1737 | /* parse BGP message header */ |
1738 | if (memcmp(p, marker, sizeof(marker))) { |
1739 | printf("incorrect marker in BGP message\n"); |
1740 | return; |
1741 | } |
1742 | p += MSGSIZE_HEADER_MARKER16; |
1743 | |
1744 | memcpy(&len, p, 2); |
1745 | len = ntohs(len)(__uint16_t)(__builtin_constant_p(len) ? (__uint16_t)(((__uint16_t )(len) & 0xffU) << 8 | ((__uint16_t)(len) & 0xff00U ) >> 8) : __swap16md(len)); |
1746 | p += 2; |
1747 | memcpy(&type, p, 1); |
1748 | p += 1; |
1749 | |
1750 | if (len < MSGSIZE_HEADER19 || len > MAX_PKTSIZE4096) { |
1751 | printf("illegal header length: %u byte\n", len); |
1752 | return; |
1753 | } |
1754 | |
1755 | switch (type) { |
1756 | case OPEN: |
1757 | printf("%s ", msgtypenames[type]); |
1758 | if (len < MSGSIZE_OPEN_MIN29) { |
1759 | printf("illegal length: %u byte\n", len); |
1760 | return; |
1761 | } |
1762 | show_mrt_open(p, len - MSGSIZE_HEADER19); |
1763 | break; |
1764 | case NOTIFICATION: |
1765 | printf("%s ", msgtypenames[type]); |
1766 | if (len < MSGSIZE_NOTIFICATION_MIN21) { |
1767 | printf("illegal length: %u byte\n", len); |
1768 | return; |
1769 | } |
1770 | show_mrt_notification(p, len - MSGSIZE_HEADER19); |
1771 | break; |
1772 | case UPDATE: |
1773 | printf("%s ", msgtypenames[type]); |
1774 | if (len < MSGSIZE_UPDATE_MIN23) { |
1775 | printf("illegal length: %u byte\n", len); |
1776 | return; |
1777 | } |
1778 | show_mrt_update(p, len - MSGSIZE_HEADER19, req->flags, |
1779 | mm->add_path); |
1780 | break; |
1781 | case KEEPALIVE: |
1782 | printf("%s ", msgtypenames[type]); |
1783 | if (len != MSGSIZE_KEEPALIVE19) { |
1784 | printf("illegal length: %u byte\n", len); |
1785 | return; |
1786 | } |
1787 | /* nothing */ |
1788 | break; |
1789 | case RREFRESH: |
1790 | printf("%s ", msgtypenames[type]); |
1791 | if (len != MSGSIZE_RREFRESH(19 + 4)) { |
1792 | printf("illegal length: %u byte\n", len); |
1793 | return; |
1794 | } |
1795 | print_afi(p, len); |
1796 | break; |
1797 | default: |
1798 | printf("unknown type %u\n", type); |
1799 | return; |
1800 | } |
1801 | printf("\n"); |
1802 | } |
1803 | |
1804 | const char * |
1805 | msg_type(u_int8_t type) |
1806 | { |
1807 | if (type >= sizeof(msgtypenames)/sizeof(msgtypenames[0])) |
1808 | return "BAD"; |
1809 | return (msgtypenames[type]); |
1810 | } |
1811 | |
1812 | int |
1813 | match_aspath(void *data, u_int16_t len, struct filter_as *f) |
1814 | { |
1815 | u_int8_t *seg; |
1816 | int final; |
1817 | u_int16_t seg_size; |
1818 | u_int8_t i, seg_len; |
1819 | u_int32_t as = 0; |
1820 | |
1821 | if (f->type == AS_EMPTY) { |
1822 | if (len == 0) |
1823 | return (1); |
1824 | else |
1825 | return (0); |
1826 | } |
1827 | |
1828 | seg = data; |
1829 | |
1830 | /* just check the leftmost AS */ |
1831 | if (f->type == AS_PEER && len >= 6) { |
1832 | as = aspath_extract(seg, 0); |
1833 | if (f->as_min == as) |
1834 | return (1); |
1835 | else |
1836 | return (0); |
1837 | } |
1838 | |
1839 | for (; len >= 6; len -= seg_size, seg += seg_size) { |
1840 | seg_len = seg[1]; |
1841 | seg_size = 2 + sizeof(u_int32_t) * seg_len; |
1842 | |
1843 | final = (len == seg_size); |
1844 | |
1845 | if (f->type == AS_SOURCE) { |
1846 | /* |
1847 | * Just extract the rightmost AS |
1848 | * but if that segment is an AS_SET then the rightmost |
1849 | * AS of a previous AS_SEQUENCE segment should be used. |
1850 | * Because of that just look at AS_SEQUENCE segments. |
1851 | */ |
1852 | if (seg[0] == AS_SEQUENCE2) |
1853 | as = aspath_extract(seg, seg_len - 1); |
1854 | /* not yet in the final segment */ |
1855 | if (!final) |
1856 | continue; |
1857 | if (f->as_min == as) |
1858 | return (1); |
1859 | else |
1860 | return (0); |
1861 | } |
1862 | /* AS_TRANSIT or AS_ALL */ |
1863 | for (i = 0; i < seg_len; i++) { |
1864 | /* |
1865 | * the source (rightmost) AS is excluded from |
1866 | * AS_TRANSIT matches. |
1867 | */ |
1868 | if (final && i == seg_len - 1 && f->type == AS_TRANSIT) |
1869 | return (0); |
1870 | as = aspath_extract(seg, i); |
1871 | if (f->as_min == as) |
1872 | return (1); |
1873 | } |
1874 | } |
1875 | return (0); |
1876 | } |