File: | src/usr.bin/bgplg/bgpctl/../../../usr.sbin/bgpctl/bgpctl.c |
Warning: | line 1183, 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 1.299 2024/01/08 15:09:14 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/time.h> |
23 | #include <sys/types.h> |
24 | #include <sys/socket.h> |
25 | #include <sys/stat.h> |
26 | #include <sys/un.h> |
27 | |
28 | #include <endian.h> |
29 | #include <err.h> |
30 | #include <errno(*__errno()).h> |
31 | #include <fcntl.h> |
32 | #include <math.h> |
33 | #include <stdio.h> |
34 | #include <stdlib.h> |
35 | #include <string.h> |
36 | #include <time.h> |
37 | #include <unistd.h> |
38 | #include <util.h> |
39 | |
40 | #include "bgpd.h" |
41 | #include "session.h" |
42 | #include "rde.h" |
43 | #include "version.h" |
44 | |
45 | #include "bgpctl.h" |
46 | #include "parser.h" |
47 | #include "mrtparser.h" |
48 | |
49 | int main(int, char *[]); |
50 | int show(struct imsg *, struct parse_result *); |
51 | void send_filterset(struct imsgbuf *, struct filter_set_head *); |
52 | void show_mrt_dump_neighbors(struct mrt_rib *, struct mrt_peer *, |
53 | void *); |
54 | void show_mrt_dump(struct mrt_rib *, struct mrt_peer *, void *); |
55 | void network_mrt_dump(struct mrt_rib *, struct mrt_peer *, void *); |
56 | void show_mrt_state(struct mrt_bgp_state *, void *); |
57 | void show_mrt_msg(struct mrt_bgp_msg *, void *); |
58 | const char *msg_type(uint8_t); |
59 | void network_bulk(struct parse_result *); |
60 | int match_aspath(void *, uint16_t, struct filter_as *); |
61 | struct flowspec *res_to_flowspec(struct parse_result *); |
62 | |
63 | struct imsgbuf *imsgbuf; |
64 | struct mrt_parser show_mrt = { show_mrt_dump, show_mrt_state, show_mrt_msg }; |
65 | struct mrt_parser net_mrt = { network_mrt_dump, NULL((void *)0), NULL((void *)0) }; |
66 | const struct output *output = &show_output; |
67 | int tableid; |
68 | int nodescr; |
69 | |
70 | __dead__attribute__((__noreturn__)) void |
71 | usage(void) |
72 | { |
73 | extern char *__progname; |
74 | |
75 | fprintf(stderr(&__sF[2]), "usage: %s [-jnV] [-s socket] command [argument ...]\n", |
76 | __progname); |
77 | exit(1); |
78 | } |
79 | |
80 | int |
81 | main(int argc, char *argv[]) |
82 | { |
83 | struct sockaddr_un sa_un; |
84 | int fd, n, done, numdone, ch, verbose = 0; |
85 | struct imsg imsg; |
86 | struct network_config net; |
87 | struct parse_result *res; |
88 | struct ctl_neighbor neighbor; |
89 | struct ctl_show_rib_request ribreq; |
90 | struct flowspec *f; |
91 | char *sockname; |
92 | enum imsg_type type; |
93 | |
94 | if (pledge("stdio rpath wpath cpath unix inet dns", NULL((void *)0)) == -1) |
95 | err(1, "pledge"); |
96 | |
97 | tableid = getrtable(); |
98 | if (asprintf(&sockname, "%s.%d", SOCKET_NAME"/var/run/bgpd.sock", tableid) == -1) |
99 | err(1, "asprintf"); |
100 | |
101 | while ((ch = getopt(argc, argv, "jns:V")) != -1) { |
102 | switch (ch) { |
103 | case 'n': |
104 | if (++nodescr > 1) |
105 | usage(); |
106 | break; |
107 | case 'j': |
108 | output = &json_output; |
109 | break; |
110 | case 's': |
111 | sockname = optarg; |
112 | break; |
113 | case 'V': |
114 | fprintf(stderr(&__sF[2]), "OpenBGPD %s\n", BGPD_VERSION"8.3"); |
115 | return 0; |
116 | default: |
117 | usage(); |
118 | /* NOTREACHED */ |
119 | } |
120 | } |
121 | argc -= optind; |
122 | argv += optind; |
123 | |
124 | if ((res = parse(argc, argv)) == NULL((void *)0)) |
125 | exit(1); |
126 | |
127 | memcpy(&neighbor.addr, &res->peeraddr, sizeof(neighbor.addr)); |
128 | strlcpy(neighbor.descr, res->peerdesc, sizeof(neighbor.descr)); |
129 | neighbor.is_group = res->is_group; |
130 | strlcpy(neighbor.reason, res->reason, sizeof(neighbor.reason)); |
131 | |
132 | switch (res->action) { |
133 | case SHOW_MRT: |
134 | if (pledge("stdio", NULL((void *)0)) == -1) |
135 | err(1, "pledge"); |
136 | |
137 | memset(&ribreq, 0, sizeof(ribreq)); |
138 | if (res->as.type != AS_UNDEF) |
139 | ribreq.as = res->as; |
140 | if (res->addr.aid) { |
141 | ribreq.prefix = res->addr; |
142 | ribreq.prefixlen = res->prefixlen; |
143 | } |
144 | /* XXX currently no communities support */ |
145 | ribreq.neighbor = neighbor; |
146 | ribreq.aid = res->aid; |
147 | ribreq.flags = res->flags; |
148 | ribreq.validation_state = res->validation_state; |
149 | show_mrt.arg = &ribreq; |
150 | if (res->flags & F_CTL_NEIGHBORS0x400000) |
151 | show_mrt.dump = show_mrt_dump_neighbors; |
152 | else |
153 | output->head(res); |
154 | mrt_parse(res->mrtfd, &show_mrt, 1); |
155 | exit(0); |
156 | default: |
157 | break; |
158 | } |
159 | |
160 | if (pledge("stdio unix", NULL((void *)0)) == -1) |
161 | err(1, "pledge"); |
162 | |
163 | if ((fd = socket(AF_UNIX1, SOCK_STREAM1, 0)) == -1) |
164 | err(1, "control_init: socket"); |
165 | |
166 | memset(&sa_un, 0, sizeof(sa_un)); |
167 | sa_un.sun_family = AF_UNIX1; |
168 | if (strlcpy(sa_un.sun_path, sockname, sizeof(sa_un.sun_path)) >= |
169 | sizeof(sa_un.sun_path)) |
170 | errx(1, "socket name too long"); |
171 | if (connect(fd, (struct sockaddr *)&sa_un, sizeof(sa_un)) == -1) |
172 | err(1, "connect: %s", sockname); |
173 | |
174 | if (pledge("stdio", NULL((void *)0)) == -1) |
175 | err(1, "pledge"); |
176 | |
177 | if ((imsgbuf = malloc(sizeof(struct imsgbuf))) == NULL((void *)0)) |
178 | err(1, NULL((void *)0)); |
179 | imsg_init(imsgbuf, fd); |
180 | done = 0; |
181 | |
182 | switch (res->action) { |
183 | case NONE: |
184 | case SHOW_MRT: |
185 | usage(); |
186 | /* NOTREACHED */ |
187 | case SHOW: |
188 | case SHOW_SUMMARY: |
189 | imsg_compose(imsgbuf, IMSG_CTL_SHOW_NEIGHBOR, 0, 0, -1, |
190 | NULL((void *)0), 0); |
191 | break; |
192 | case SHOW_SUMMARY_TERSE: |
193 | imsg_compose(imsgbuf, IMSG_CTL_SHOW_TERSE, 0, 0, -1, NULL((void *)0), 0); |
194 | break; |
195 | case SHOW_FIB: |
196 | if (!res->addr.aid) { |
197 | struct ctl_kroute_req req = { 0 }; |
198 | |
199 | req.af = aid2af(res->aid); |
200 | req.flags = res->flags; |
201 | |
202 | imsg_compose(imsgbuf, IMSG_CTL_KROUTE, res->rtableid, |
203 | 0, -1, &req, sizeof(req)); |
204 | } else |
205 | imsg_compose(imsgbuf, IMSG_CTL_KROUTE_ADDR, |
206 | res->rtableid, 0, -1, |
207 | &res->addr, sizeof(res->addr)); |
208 | break; |
209 | case SHOW_FIB_TABLES: |
210 | imsg_compose(imsgbuf, IMSG_CTL_SHOW_FIB_TABLES, 0, 0, -1, |
211 | NULL((void *)0), 0); |
212 | break; |
213 | case SHOW_NEXTHOP: |
214 | imsg_compose(imsgbuf, IMSG_CTL_SHOW_NEXTHOP, res->rtableid, |
215 | 0, -1, NULL((void *)0), 0); |
216 | break; |
217 | case SHOW_INTERFACE: |
218 | imsg_compose(imsgbuf, IMSG_CTL_SHOW_INTERFACE, 0, 0, -1, |
219 | NULL((void *)0), 0); |
220 | break; |
221 | case SHOW_SET: |
222 | imsg_compose(imsgbuf, IMSG_CTL_SHOW_SET, 0, 0, -1, NULL((void *)0), 0); |
223 | break; |
224 | case SHOW_RTR: |
225 | imsg_compose(imsgbuf, IMSG_CTL_SHOW_RTR, 0, 0, -1, NULL((void *)0), 0); |
226 | break; |
227 | case SHOW_NEIGHBOR: |
228 | case SHOW_NEIGHBOR_TIMERS: |
229 | case SHOW_NEIGHBOR_TERSE: |
230 | neighbor.show_timers = (res->action == SHOW_NEIGHBOR_TIMERS); |
231 | if (res->peeraddr.aid || res->peerdesc[0]) |
232 | imsg_compose(imsgbuf, IMSG_CTL_SHOW_NEIGHBOR, 0, 0, -1, |
233 | &neighbor, sizeof(neighbor)); |
234 | else |
235 | imsg_compose(imsgbuf, IMSG_CTL_SHOW_NEIGHBOR, 0, 0, -1, |
236 | NULL((void *)0), 0); |
237 | break; |
238 | case SHOW_RIB: |
239 | memset(&ribreq, 0, sizeof(ribreq)); |
240 | type = IMSG_CTL_SHOW_RIB; |
241 | if (res->addr.aid) { |
242 | ribreq.prefix = res->addr; |
243 | ribreq.prefixlen = res->prefixlen; |
244 | type = IMSG_CTL_SHOW_RIB_PREFIX; |
245 | } |
246 | if (res->as.type != AS_UNDEF) |
247 | ribreq.as = res->as; |
248 | if (res->community.flags != 0) |
249 | ribreq.community = res->community; |
250 | ribreq.neighbor = neighbor; |
251 | strlcpy(ribreq.rib, res->rib, sizeof(ribreq.rib)); |
252 | ribreq.aid = res->aid; |
253 | ribreq.path_id = res->pathid; |
254 | ribreq.flags = res->flags; |
255 | imsg_compose(imsgbuf, type, 0, 0, -1, &ribreq, sizeof(ribreq)); |
256 | break; |
257 | case SHOW_RIB_MEM: |
258 | imsg_compose(imsgbuf, IMSG_CTL_SHOW_RIB_MEM, 0, 0, -1, NULL((void *)0), 0); |
259 | break; |
260 | case SHOW_METRICS: |
261 | output = &ometric_output; |
262 | numdone = 2; |
263 | imsg_compose(imsgbuf, IMSG_CTL_SHOW_NEIGHBOR, 0, 0, -1, |
264 | NULL((void *)0), 0); |
265 | imsg_compose(imsgbuf, IMSG_CTL_SHOW_RIB_MEM, 0, 0, -1, NULL((void *)0), 0); |
266 | break; |
267 | case RELOAD: |
268 | imsg_compose(imsgbuf, IMSG_CTL_RELOAD, 0, 0, -1, |
269 | res->reason, sizeof(res->reason)); |
270 | if (res->reason[0]) |
271 | printf("reload request sent: %s\n", res->reason); |
272 | else |
273 | printf("reload request sent.\n"); |
274 | break; |
275 | case FIB: |
276 | errx(1, "action==FIB"); |
277 | break; |
278 | case FIB_COUPLE: |
279 | imsg_compose(imsgbuf, IMSG_CTL_FIB_COUPLE, res->rtableid, 0, -1, |
280 | NULL((void *)0), 0); |
281 | printf("couple request sent.\n"); |
282 | done = 1; |
283 | break; |
284 | case FIB_DECOUPLE: |
285 | imsg_compose(imsgbuf, IMSG_CTL_FIB_DECOUPLE, res->rtableid, |
286 | 0, -1, NULL((void *)0), 0); |
287 | printf("decouple request sent.\n"); |
288 | done = 1; |
289 | break; |
290 | case NEIGHBOR: |
291 | errx(1, "action==NEIGHBOR"); |
292 | break; |
293 | case NEIGHBOR_UP: |
294 | imsg_compose(imsgbuf, IMSG_CTL_NEIGHBOR_UP, 0, 0, -1, |
295 | &neighbor, sizeof(neighbor)); |
296 | break; |
297 | case NEIGHBOR_DOWN: |
298 | imsg_compose(imsgbuf, IMSG_CTL_NEIGHBOR_DOWN, 0, 0, -1, |
299 | &neighbor, sizeof(neighbor)); |
300 | break; |
301 | case NEIGHBOR_CLEAR: |
302 | imsg_compose(imsgbuf, IMSG_CTL_NEIGHBOR_CLEAR, 0, 0, -1, |
303 | &neighbor, sizeof(neighbor)); |
304 | break; |
305 | case NEIGHBOR_RREFRESH: |
306 | imsg_compose(imsgbuf, IMSG_CTL_NEIGHBOR_RREFRESH, 0, 0, -1, |
307 | &neighbor, sizeof(neighbor)); |
308 | break; |
309 | case NEIGHBOR_DESTROY: |
310 | imsg_compose(imsgbuf, IMSG_CTL_NEIGHBOR_DESTROY, 0, 0, -1, |
311 | &neighbor, sizeof(neighbor)); |
312 | break; |
313 | case NETWORK_BULK_ADD: |
314 | case NETWORK_BULK_REMOVE: |
315 | network_bulk(res); |
316 | printf("requests sent.\n"); |
317 | done = 1; |
318 | break; |
319 | case NETWORK_ADD: |
320 | case NETWORK_REMOVE: |
321 | memset(&net, 0, sizeof(net)); |
322 | net.prefix = res->addr; |
323 | net.prefixlen = res->prefixlen; |
324 | net.rd = res->rd; |
325 | /* attribute sets are not supported */ |
326 | if (res->action == NETWORK_ADD) { |
327 | imsg_compose(imsgbuf, IMSG_NETWORK_ADD, 0, 0, -1, |
328 | &net, sizeof(net)); |
329 | send_filterset(imsgbuf, &res->set); |
330 | imsg_compose(imsgbuf, IMSG_NETWORK_DONE, 0, 0, -1, |
331 | NULL((void *)0), 0); |
332 | } else |
333 | imsg_compose(imsgbuf, IMSG_NETWORK_REMOVE, 0, 0, -1, |
334 | &net, sizeof(net)); |
335 | printf("request sent.\n"); |
336 | done = 1; |
337 | break; |
338 | case NETWORK_FLUSH: |
339 | imsg_compose(imsgbuf, IMSG_NETWORK_FLUSH, 0, 0, -1, NULL((void *)0), 0); |
340 | printf("request sent.\n"); |
341 | done = 1; |
342 | break; |
343 | case NETWORK_SHOW: |
344 | memset(&ribreq, 0, sizeof(ribreq)); |
345 | ribreq.aid = res->aid; |
346 | strlcpy(ribreq.rib, res->rib, sizeof(ribreq.rib)); |
347 | imsg_compose(imsgbuf, IMSG_CTL_SHOW_NETWORK, 0, 0, -1, |
348 | &ribreq, sizeof(ribreq)); |
349 | break; |
350 | case NETWORK_MRT: |
351 | memset(&ribreq, 0, sizeof(ribreq)); |
352 | if (res->as.type != AS_UNDEF) |
353 | ribreq.as = res->as; |
354 | if (res->addr.aid) { |
355 | ribreq.prefix = res->addr; |
356 | ribreq.prefixlen = res->prefixlen; |
357 | } |
358 | /* XXX currently no community support */ |
359 | ribreq.neighbor = neighbor; |
360 | ribreq.aid = res->aid; |
361 | ribreq.flags = res->flags; |
362 | net_mrt.arg = &ribreq; |
363 | mrt_parse(res->mrtfd, &net_mrt, 1); |
364 | done = 1; |
365 | break; |
366 | case FLOWSPEC_ADD: |
367 | case FLOWSPEC_REMOVE: |
368 | f = res_to_flowspec(res); |
369 | /* attribute sets are not supported */ |
370 | if (res->action == FLOWSPEC_ADD) { |
371 | imsg_compose(imsgbuf, IMSG_FLOWSPEC_ADD, 0, 0, -1, |
372 | f, FLOWSPEC_SIZE(__builtin_offsetof(struct flowspec, data)) + f->len); |
373 | send_filterset(imsgbuf, &res->set); |
374 | imsg_compose(imsgbuf, IMSG_FLOWSPEC_DONE, 0, 0, -1, |
375 | NULL((void *)0), 0); |
376 | } else |
377 | imsg_compose(imsgbuf, IMSG_FLOWSPEC_REMOVE, 0, 0, -1, |
378 | f, FLOWSPEC_SIZE(__builtin_offsetof(struct flowspec, data)) + f->len); |
379 | printf("request sent.\n"); |
380 | done = 1; |
381 | break; |
382 | case FLOWSPEC_FLUSH: |
383 | imsg_compose(imsgbuf, IMSG_FLOWSPEC_FLUSH, 0, 0, -1, NULL((void *)0), 0); |
384 | printf("request sent.\n"); |
385 | done = 1; |
386 | break; |
387 | case FLOWSPEC_SHOW: |
388 | memset(&ribreq, 0, sizeof(ribreq)); |
389 | switch (res->aid) { |
390 | case AID_INET1: |
391 | ribreq.aid = AID_FLOWSPECv45; |
392 | break; |
393 | case AID_INET62: |
394 | ribreq.aid = AID_FLOWSPECv66; |
395 | break; |
396 | case AID_UNSPEC0: |
397 | ribreq.aid = res->aid; |
398 | break; |
399 | default: |
400 | errx(1, "flowspec family %s currently not supported", |
401 | aid2str(res->aid)); |
402 | } |
403 | strlcpy(ribreq.rib, res->rib, sizeof(ribreq.rib)); |
404 | imsg_compose(imsgbuf, IMSG_CTL_SHOW_FLOWSPEC, 0, 0, -1, |
405 | &ribreq, sizeof(ribreq)); |
406 | break; |
407 | case LOG_VERBOSE: |
408 | verbose = 1; |
409 | /* FALLTHROUGH */ |
410 | case LOG_BRIEF: |
411 | imsg_compose(imsgbuf, IMSG_CTL_LOG_VERBOSE, 0, 0, -1, |
412 | &verbose, sizeof(verbose)); |
413 | printf("logging request sent.\n"); |
414 | done = 1; |
415 | break; |
416 | } |
417 | |
418 | output->head(res); |
419 | |
420 | again: |
421 | while (imsgbuf->w.queued) |
422 | if (msgbuf_write(&imsgbuf->w) <= 0) |
423 | err(1, "write error"); |
424 | |
425 | while (!done) { |
426 | while (!done) { |
427 | if ((n = imsg_get(imsgbuf, &imsg)) == -1) |
428 | err(1, "imsg_get error"); |
429 | if (n == 0) |
430 | break; |
431 | |
432 | done = show(&imsg, res); |
433 | imsg_free(&imsg); |
434 | } |
435 | |
436 | if (done) |
437 | break; |
438 | |
439 | if ((n = imsg_read(imsgbuf)) == -1) |
440 | err(1, "imsg_read error"); |
441 | if (n == 0) |
442 | errx(1, "pipe closed"); |
443 | |
444 | } |
445 | |
446 | if (res->action == SHOW_METRICS && --numdone > 0) { |
447 | done = 0; |
448 | goto again; |
449 | } |
450 | |
451 | output->tail(); |
452 | |
453 | close(fd); |
454 | free(imsgbuf); |
455 | |
456 | exit(0); |
457 | } |
458 | |
459 | int |
460 | show(struct imsg *imsg, struct parse_result *res) |
461 | { |
462 | struct peer *p; |
463 | struct ctl_timer t; |
464 | struct ctl_show_interface *iface; |
465 | struct ctl_show_nexthop *nh; |
466 | struct ctl_show_set set; |
467 | struct ctl_show_rtr rtr; |
468 | struct kroute_full *kf; |
469 | struct ktable *kt; |
470 | struct flowspec *f; |
471 | struct ctl_show_rib rib; |
472 | struct rde_memstats stats; |
473 | u_char *asdata; |
474 | u_int rescode, ilen; |
475 | size_t aslen; |
476 | |
477 | switch (imsg->hdr.type) { |
478 | case IMSG_CTL_SHOW_NEIGHBOR: |
479 | if (output->neighbor == NULL((void *)0)) |
480 | break; |
481 | p = imsg->data; |
482 | output->neighbor(p, res); |
483 | break; |
484 | case IMSG_CTL_SHOW_TIMER: |
485 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(t)) |
486 | errx(1, "wrong imsg len"); |
487 | if (output->timer == NULL((void *)0)) |
488 | break; |
489 | memcpy(&t, imsg->data, sizeof(t)); |
490 | if (t.type > 0 && t.type < Timer_Max) |
491 | output->timer(&t); |
492 | break; |
493 | case IMSG_CTL_SHOW_INTERFACE: |
494 | if (output->interface == NULL((void *)0)) |
495 | break; |
496 | iface = imsg->data; |
497 | output->interface(iface); |
498 | break; |
499 | case IMSG_CTL_SHOW_NEXTHOP: |
500 | if (output->nexthop == NULL((void *)0)) |
501 | break; |
502 | nh = imsg->data; |
503 | output->nexthop(nh); |
504 | break; |
505 | case IMSG_CTL_KROUTE: |
506 | case IMSG_CTL_SHOW_NETWORK: |
507 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(*kf)) |
508 | errx(1, "wrong imsg len"); |
509 | if (output->fib == NULL((void *)0)) |
510 | break; |
511 | kf = imsg->data; |
512 | output->fib(kf); |
513 | break; |
514 | case IMSG_CTL_SHOW_FLOWSPEC: |
515 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(*f)) |
516 | errx(1, "wrong imsg len"); |
517 | if (output->flowspec == NULL((void *)0)) |
518 | break; |
519 | f = imsg->data; |
520 | output->flowspec(f); |
521 | break; |
522 | case IMSG_CTL_SHOW_FIB_TABLES: |
523 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(*kt)) |
524 | errx(1, "wrong imsg len"); |
525 | if (output->fib_table == NULL((void *)0)) |
526 | break; |
527 | kt = imsg->data; |
528 | output->fib_table(kt); |
529 | break; |
530 | case IMSG_CTL_SHOW_RIB: |
531 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(rib)) |
532 | errx(1, "wrong imsg len"); |
533 | if (output->rib == NULL((void *)0)) |
534 | break; |
535 | memcpy(&rib, imsg->data, sizeof(rib)); |
536 | aslen = imsg->hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr) - sizeof(rib); |
537 | asdata = imsg->data; |
538 | asdata += sizeof(rib); |
539 | output->rib(&rib, asdata, aslen, res); |
540 | break; |
541 | case IMSG_CTL_SHOW_RIB_COMMUNITIES: |
542 | ilen = imsg->hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
543 | if (ilen % sizeof(struct community)) { |
544 | warnx("bad IMSG_CTL_SHOW_RIB_COMMUNITIES received"); |
545 | break; |
546 | } |
547 | if (output->communities == NULL((void *)0)) |
548 | break; |
549 | output->communities(imsg->data, ilen, res); |
550 | break; |
551 | case IMSG_CTL_SHOW_RIB_ATTR: |
552 | ilen = imsg->hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr); |
553 | if (ilen < 3) { |
554 | warnx("bad IMSG_CTL_SHOW_RIB_ATTR received"); |
555 | break; |
556 | } |
557 | if (output->attr == NULL((void *)0)) |
558 | break; |
559 | output->attr(imsg->data, ilen, res->flags, 0); |
560 | break; |
561 | case IMSG_CTL_SHOW_RIB_MEM: |
562 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(stats)) |
563 | errx(1, "wrong imsg len"); |
564 | if (output->rib_mem == NULL((void *)0)) |
565 | break; |
566 | memcpy(&stats, imsg->data, sizeof(stats)); |
567 | output->rib_mem(&stats); |
568 | return (1); |
569 | case IMSG_CTL_SHOW_SET: |
570 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(set)) |
571 | errx(1, "wrong imsg len"); |
572 | if (output->set == NULL((void *)0)) |
573 | break; |
574 | memcpy(&set, imsg->data, sizeof(set)); |
575 | output->set(&set); |
576 | break; |
577 | case IMSG_CTL_SHOW_RTR: |
578 | if (imsg->hdr.len < IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(rtr)) |
579 | errx(1, "wrong imsg len"); |
580 | if (output->rtr == NULL((void *)0)) |
581 | break; |
582 | memcpy(&rtr, imsg->data, sizeof(rtr)); |
583 | output->rtr(&rtr); |
584 | break; |
585 | case IMSG_CTL_RESULT: |
586 | if (imsg->hdr.len != IMSG_HEADER_SIZEsizeof(struct imsg_hdr) + sizeof(rescode)) { |
587 | warnx("got IMSG_CTL_RESULT with wrong len"); |
588 | break; |
589 | } |
590 | if (output->result == NULL((void *)0)) |
591 | break; |
592 | memcpy(&rescode, imsg->data, sizeof(rescode)); |
593 | output->result(rescode); |
594 | return (1); |
595 | case IMSG_CTL_END: |
596 | return (1); |
597 | default: |
598 | warnx("unknown imsg %d received", imsg->hdr.type); |
599 | break; |
600 | } |
601 | |
602 | return (0); |
603 | } |
604 | |
605 | time_t |
606 | get_monotime(time_t t) |
607 | { |
608 | struct timespec ts; |
609 | |
610 | if (t == 0) |
611 | return -1; |
612 | if (clock_gettime(CLOCK_MONOTONIC3, &ts) != 0) |
613 | err(1, "clock_gettime"); |
614 | if (t > ts.tv_sec) /* time in the future is not possible */ |
615 | t = ts.tv_sec; |
616 | return (ts.tv_sec - t); |
617 | } |
618 | |
619 | char * |
620 | fmt_peer(const char *descr, const struct bgpd_addr *remote_addr, |
621 | int masklen) |
622 | { |
623 | const char *ip; |
624 | char *p; |
625 | |
626 | if (descr && descr[0] && !nodescr) { |
627 | if ((p = strdup(descr)) == NULL((void *)0)) |
628 | err(1, NULL((void *)0)); |
629 | return (p); |
630 | } |
631 | |
632 | ip = log_addr(remote_addr); |
633 | if (masklen != -1 && ((remote_addr->aid == AID_INET1 && masklen != 32) || |
634 | (remote_addr->aid == AID_INET62 && masklen != 128))) { |
635 | if (asprintf(&p, "%s/%u", ip, masklen) == -1) |
636 | err(1, NULL((void *)0)); |
637 | } else { |
638 | if ((p = strdup(ip)) == NULL((void *)0)) |
639 | err(1, NULL((void *)0)); |
640 | } |
641 | |
642 | return (p); |
643 | } |
644 | |
645 | const char * |
646 | fmt_auth_method(enum auth_method method) |
647 | { |
648 | switch (method) { |
649 | case AUTH_MD5SIG: |
650 | return ", using md5sig"; |
651 | case AUTH_IPSEC_MANUAL_ESP: |
652 | return ", using ipsec manual esp"; |
653 | case AUTH_IPSEC_MANUAL_AH: |
654 | return ", using ipsec manual ah"; |
655 | case AUTH_IPSEC_IKE_ESP: |
656 | return ", using ipsec ike esp"; |
657 | case AUTH_IPSEC_IKE_AH: |
658 | return ", using ipsec ike ah"; |
659 | case AUTH_NONE: /* FALLTHROUGH */ |
660 | default: |
661 | return ""; |
662 | } |
663 | } |
664 | |
665 | #define TF_LEN16 16 |
666 | |
667 | const char * |
668 | fmt_timeframe(time_t t) |
669 | { |
670 | static char buf[TF_LEN16]; |
671 | unsigned int sec, min, hrs, day; |
672 | unsigned long long week; |
673 | |
674 | if (t < 0) |
675 | t = 0; |
676 | week = t; |
677 | |
678 | sec = week % 60; |
679 | week /= 60; |
680 | min = week % 60; |
681 | week /= 60; |
682 | hrs = week % 24; |
683 | week /= 24; |
684 | day = week % 7; |
685 | week /= 7; |
686 | |
687 | if (week >= 1000) |
688 | snprintf(buf, TF_LEN16, "%02lluw", week); |
689 | else if (week > 0) |
690 | snprintf(buf, TF_LEN16, "%02lluw%01ud%02uh", week, day, hrs); |
691 | else if (day > 0) |
692 | snprintf(buf, TF_LEN16, "%01ud%02uh%02um", day, hrs, min); |
693 | else |
694 | snprintf(buf, TF_LEN16, "%02u:%02u:%02u", hrs, min, sec); |
695 | |
696 | return (buf); |
697 | } |
698 | |
699 | const char * |
700 | fmt_monotime(time_t t) |
701 | { |
702 | t = get_monotime(t); |
703 | |
704 | if (t == -1) |
705 | return ("Never"); |
706 | |
707 | return (fmt_timeframe(t)); |
708 | } |
709 | |
710 | const char * |
711 | fmt_fib_flags(uint16_t flags) |
712 | { |
713 | static char buf[8]; |
714 | |
715 | if (flags & F_BGPD0x0001) |
716 | strlcpy(buf, "B", sizeof(buf)); |
717 | else if (flags & F_CONNECTED0x0004) |
718 | strlcpy(buf, "C", sizeof(buf)); |
719 | else if (flags & F_STATIC0x0008) |
720 | strlcpy(buf, "S", sizeof(buf)); |
721 | else |
722 | strlcpy(buf, " ", sizeof(buf)); |
723 | |
724 | if (flags & F_NEXTHOP0x0010) |
725 | strlcat(buf, "N", sizeof(buf)); |
726 | else |
727 | strlcat(buf, " ", sizeof(buf)); |
728 | |
729 | if (flags & F_REJECT0x0020 && flags & F_BLACKHOLE0x0040) |
730 | strlcat(buf, "f", sizeof(buf)); |
731 | else if (flags & F_REJECT0x0020) |
732 | strlcat(buf, "r", sizeof(buf)); |
733 | else if (flags & F_BLACKHOLE0x0040) |
734 | strlcat(buf, "b", sizeof(buf)); |
735 | else |
736 | strlcat(buf, " ", sizeof(buf)); |
737 | |
738 | return buf; |
739 | } |
740 | |
741 | const char * |
742 | fmt_origin(uint8_t origin, int sum) |
743 | { |
744 | switch (origin) { |
745 | case ORIGIN_IGP0: |
746 | return (sum ? "i" : "IGP"); |
747 | case ORIGIN_EGP1: |
748 | return (sum ? "e" : "EGP"); |
749 | case ORIGIN_INCOMPLETE2: |
750 | return (sum ? "?" : "incomplete"); |
751 | default: |
752 | return (sum ? "X" : "bad origin"); |
753 | } |
754 | } |
755 | |
756 | const char * |
757 | fmt_flags(uint32_t flags, int sum) |
758 | { |
759 | static char buf[80]; |
760 | char flagstr[5]; |
761 | char *p = flagstr; |
762 | |
763 | if (sum) { |
764 | if (flags & F_PREF_INVALID0x020) |
765 | *p++ = 'E'; |
766 | if (flags & F_PREF_OTC_LEAK0x080) |
767 | *p++ = 'L'; |
768 | if (flags & F_PREF_ANNOUNCE0x008) |
769 | *p++ = 'A'; |
770 | if (flags & F_PREF_INTERNAL0x004) |
771 | *p++ = 'I'; |
772 | if (flags & F_PREF_STALE0x010) |
773 | *p++ = 'S'; |
774 | if (flags & F_PREF_ELIGIBLE0x001) |
775 | *p++ = '*'; |
776 | if (flags & F_PREF_BEST0x002) |
777 | *p++ = '>'; |
778 | if (flags & F_PREF_ECMP0x100) |
779 | *p++ = 'm'; |
780 | if (flags & F_PREF_AS_WIDE0x200) |
781 | *p++ = 'w'; |
782 | *p = '\0'; |
783 | snprintf(buf, sizeof(buf), "%-5s", flagstr); |
784 | } else { |
785 | if (flags & F_PREF_INTERNAL0x004) |
786 | strlcpy(buf, "internal", sizeof(buf)); |
787 | else |
788 | strlcpy(buf, "external", sizeof(buf)); |
789 | |
790 | if (flags & F_PREF_INVALID0x020) |
791 | strlcat(buf, ", invalid", sizeof(buf)); |
792 | if (flags & F_PREF_OTC_LEAK0x080) |
793 | strlcat(buf, ", otc leak", sizeof(buf)); |
794 | if (flags & F_PREF_STALE0x010) |
795 | strlcat(buf, ", stale", sizeof(buf)); |
796 | if (flags & F_PREF_ELIGIBLE0x001) |
797 | strlcat(buf, ", valid", sizeof(buf)); |
798 | if (flags & F_PREF_BEST0x002) |
799 | strlcat(buf, ", best", sizeof(buf)); |
800 | if (flags & F_PREF_ECMP0x100) |
801 | strlcat(buf, ", ecmp", sizeof(buf)); |
802 | if (flags & F_PREF_AS_WIDE0x200) |
803 | strlcat(buf, ", as-wide", sizeof(buf)); |
804 | if (flags & F_PREF_ANNOUNCE0x008) |
805 | strlcat(buf, ", announced", sizeof(buf)); |
806 | if (strlen(buf) >= sizeof(buf) - 1) |
807 | errx(1, "%s buffer too small", __func__); |
808 | } |
809 | |
810 | return buf; |
811 | } |
812 | |
813 | const char * |
814 | fmt_ovs(uint8_t validation_state, int sum) |
815 | { |
816 | switch (validation_state) { |
817 | case ROA_INVALID0x1: |
818 | return (sum ? "!" : "invalid"); |
819 | case ROA_VALID0x2: |
820 | return (sum ? "V" : "valid"); |
821 | default: |
822 | return (sum ? "N" : "not-found"); |
823 | } |
824 | } |
825 | |
826 | const char * |
827 | fmt_avs(uint8_t validation_state, int sum) |
828 | { |
829 | switch (validation_state) { |
830 | case ASPA_INVALID0x01: |
831 | return (sum ? "!" : "invalid"); |
832 | case ASPA_VALID0x02: |
833 | return (sum ? "V" : "valid"); |
834 | default: |
835 | return (sum ? "?" : "unknown"); |
836 | } |
837 | } |
838 | |
839 | const char * |
840 | fmt_mem(long long num) |
841 | { |
842 | static char buf[16]; |
843 | |
844 | if (fmt_scaled(num, buf) == -1) |
845 | snprintf(buf, sizeof(buf), "%lldB", num); |
846 | |
847 | return (buf); |
848 | } |
849 | |
850 | const char * |
851 | fmt_errstr(uint8_t errcode, uint8_t subcode) |
852 | { |
853 | static char errbuf[256]; |
854 | const char *errstr = NULL((void *)0); |
855 | const char *suberr = NULL((void *)0); |
856 | int uk = 0; |
857 | |
858 | if (errcode == 0) /* no error */ |
859 | return NULL((void *)0); |
860 | |
861 | if (errcode < sizeof(errnames)/sizeof(char *)) |
862 | errstr = errnames[errcode]; |
863 | |
864 | switch (errcode) { |
865 | case ERR_HEADER: |
866 | if (subcode < sizeof(suberr_header_names)/sizeof(char *)) |
867 | suberr = suberr_header_names[subcode]; |
868 | else |
869 | uk = 1; |
870 | break; |
871 | case ERR_OPEN: |
872 | if (subcode < sizeof(suberr_open_names)/sizeof(char *)) |
873 | suberr = suberr_open_names[subcode]; |
874 | else |
875 | uk = 1; |
876 | break; |
877 | case ERR_UPDATE: |
878 | if (subcode < sizeof(suberr_update_names)/sizeof(char *)) |
879 | suberr = suberr_update_names[subcode]; |
880 | else |
881 | uk = 1; |
882 | break; |
883 | case ERR_HOLDTIMEREXPIRED: |
884 | if (subcode != 0) |
885 | uk = 1; |
886 | break; |
887 | case ERR_FSM: |
888 | if (subcode < sizeof(suberr_fsm_names)/sizeof(char *)) |
889 | suberr = suberr_fsm_names[subcode]; |
890 | else |
891 | uk = 1; |
892 | break; |
893 | case ERR_CEASE: |
894 | if (subcode < sizeof(suberr_cease_names)/sizeof(char *)) |
895 | suberr = suberr_cease_names[subcode]; |
896 | else |
897 | uk = 1; |
898 | break; |
899 | default: |
900 | snprintf(errbuf, sizeof(errbuf), |
901 | "unknown error code %u subcode %u", errcode, subcode); |
902 | return (errbuf); |
903 | } |
904 | |
905 | if (uk) |
906 | snprintf(errbuf, sizeof(errbuf), |
907 | "%s, unknown subcode %u", errstr, subcode); |
908 | else if (suberr == NULL((void *)0)) |
909 | return (errstr); |
910 | else |
911 | snprintf(errbuf, sizeof(errbuf), |
912 | "%s, %s", errstr, suberr); |
913 | |
914 | return (errbuf); |
915 | } |
916 | |
917 | const char * |
918 | fmt_attr(uint8_t type, int flags) |
919 | { |
920 | #define CHECK_FLAGS(s, t, m) \ |
921 | if (((s) & ~(ATTR_DEFMASK(0x0f | 0x10) | (m))) != (t)) pflags = 1 |
922 | |
923 | static char cstr[48]; |
924 | int pflags = 0; |
925 | |
926 | switch (type) { |
927 | case ATTR_ORIGIN: |
928 | CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0); |
929 | strlcpy(cstr, "Origin", sizeof(cstr)); |
930 | break; |
931 | case ATTR_ASPATH: |
932 | CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0); |
933 | strlcpy(cstr, "AS-Path", sizeof(cstr)); |
934 | break; |
935 | case ATTR_AS4_PATH: |
936 | CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0); |
937 | strlcpy(cstr, "AS4-Path", sizeof(cstr)); |
938 | break; |
939 | case ATTR_NEXTHOP: |
940 | CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0); |
941 | strlcpy(cstr, "Nexthop", sizeof(cstr)); |
942 | break; |
943 | case ATTR_MED: |
944 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80, 0); |
945 | strlcpy(cstr, "Med", sizeof(cstr)); |
946 | break; |
947 | case ATTR_LOCALPREF: |
948 | CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0); |
949 | strlcpy(cstr, "Localpref", sizeof(cstr)); |
950 | break; |
951 | case ATTR_ATOMIC_AGGREGATE: |
952 | CHECK_FLAGS(flags, ATTR_WELL_KNOWN0x40, 0); |
953 | strlcpy(cstr, "Atomic Aggregate", sizeof(cstr)); |
954 | break; |
955 | case ATTR_AGGREGATOR: |
956 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20); |
957 | strlcpy(cstr, "Aggregator", sizeof(cstr)); |
958 | break; |
959 | case ATTR_AS4_AGGREGATOR: |
960 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20); |
961 | strlcpy(cstr, "AS4-Aggregator", sizeof(cstr)); |
962 | break; |
963 | case ATTR_COMMUNITIES: |
964 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20); |
965 | strlcpy(cstr, "Communities", sizeof(cstr)); |
966 | break; |
967 | case ATTR_ORIGINATOR_ID: |
968 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80, 0); |
969 | strlcpy(cstr, "Originator Id", sizeof(cstr)); |
970 | break; |
971 | case ATTR_CLUSTER_LIST: |
972 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80, 0); |
973 | strlcpy(cstr, "Cluster Id List", sizeof(cstr)); |
974 | break; |
975 | case ATTR_MP_REACH_NLRI: |
976 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80, 0); |
977 | strlcpy(cstr, "MP Reach NLRI", sizeof(cstr)); |
978 | break; |
979 | case ATTR_MP_UNREACH_NLRI: |
980 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80, 0); |
981 | strlcpy(cstr, "MP Unreach NLRI", sizeof(cstr)); |
982 | break; |
983 | case ATTR_EXT_COMMUNITIES: |
984 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20); |
985 | strlcpy(cstr, "Ext. Communities", sizeof(cstr)); |
986 | break; |
987 | case ATTR_LARGE_COMMUNITIES: |
988 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20); |
989 | strlcpy(cstr, "Large Communities", sizeof(cstr)); |
990 | break; |
991 | case ATTR_OTC: |
992 | CHECK_FLAGS(flags, ATTR_OPTIONAL0x80|ATTR_TRANSITIVE0x40, ATTR_PARTIAL0x20); |
993 | strlcpy(cstr, "OTC", sizeof(cstr)); |
994 | break; |
995 | default: |
996 | /* ignore unknown attributes */ |
997 | snprintf(cstr, sizeof(cstr), "Unknown Attribute #%u", type); |
998 | pflags = 1; |
999 | break; |
1000 | } |
1001 | if (flags != -1 && pflags) { |
1002 | strlcat(cstr, " flags [", sizeof(cstr)); |
1003 | if (flags & ATTR_OPTIONAL0x80) |
1004 | strlcat(cstr, "O", sizeof(cstr)); |
1005 | if (flags & ATTR_TRANSITIVE0x40) |
1006 | strlcat(cstr, "T", sizeof(cstr)); |
1007 | if (flags & ATTR_PARTIAL0x20) |
1008 | strlcat(cstr, "P", sizeof(cstr)); |
1009 | strlcat(cstr, "]", sizeof(cstr)); |
1010 | } |
1011 | return (cstr); |
1012 | |
1013 | #undef CHECK_FLAGS |
1014 | } |
1015 | |
1016 | const char * |
1017 | fmt_community(uint16_t a, uint16_t v) |
1018 | { |
1019 | static char buf[12]; |
1020 | |
1021 | if (a == COMMUNITY_WELLKNOWN0xffff) |
1022 | switch (v) { |
1023 | case COMMUNITY_GRACEFUL_SHUTDOWN0x0000: |
1024 | return "GRACEFUL_SHUTDOWN"; |
1025 | case COMMUNITY_NO_EXPORT0xff01: |
1026 | return "NO_EXPORT"; |
1027 | case COMMUNITY_NO_ADVERTISE0xff02: |
1028 | return "NO_ADVERTISE"; |
1029 | case COMMUNITY_NO_EXPSUBCONFED0xff03: |
1030 | return "NO_EXPORT_SUBCONFED"; |
1031 | case COMMUNITY_NO_PEER0xff04: |
1032 | return "NO_PEER"; |
1033 | case COMMUNITY_BLACKHOLE0x029A: |
1034 | return "BLACKHOLE"; |
1035 | default: |
1036 | break; |
1037 | } |
1038 | |
1039 | snprintf(buf, sizeof(buf), "%hu:%hu", a, v); |
1040 | return buf; |
1041 | } |
1042 | |
1043 | const char * |
1044 | fmt_large_community(uint32_t d1, uint32_t d2, uint32_t d3) |
1045 | { |
1046 | static char buf[33]; |
1047 | |
1048 | snprintf(buf, sizeof(buf), "%u:%u:%u", d1, d2, d3); |
1049 | return buf; |
1050 | } |
1051 | |
1052 | const char * |
1053 | fmt_ext_community(uint8_t *data) |
1054 | { |
1055 | static char buf[32]; |
1056 | uint64_t ext; |
1057 | struct in_addr ip; |
1058 | uint32_t as4, u32; |
1059 | uint16_t as2, u16; |
1060 | uint8_t type, subtype; |
1061 | |
1062 | type = data[0]; |
1063 | subtype = data[1]; |
1064 | |
1065 | switch (type) { |
1066 | case EXT_COMMUNITY_TRANS_TWO_AS0x00: |
1067 | case EXT_COMMUNITY_GEN_TWO_AS0x80: |
1068 | memcpy(&as2, data + 2, sizeof(as2)); |
1069 | memcpy(&u32, data + 4, sizeof(u32)); |
1070 | snprintf(buf, sizeof(buf), "%s %s:%u", |
1071 | log_ext_subtype(type, subtype), |
1072 | 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))); |
1073 | return buf; |
1074 | case EXT_COMMUNITY_TRANS_IPV40x01: |
1075 | case EXT_COMMUNITY_GEN_IPV40x81: |
1076 | memcpy(&ip, data + 2, sizeof(ip)); |
1077 | memcpy(&u16, data + 6, sizeof(u16)); |
1078 | snprintf(buf, sizeof(buf), "%s %s:%hu", |
1079 | log_ext_subtype(type, subtype), |
1080 | 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))); |
1081 | return buf; |
1082 | case EXT_COMMUNITY_TRANS_FOUR_AS0x02: |
1083 | case EXT_COMMUNITY_GEN_FOUR_AS0x82: |
1084 | memcpy(&as4, data + 2, sizeof(as4)); |
1085 | memcpy(&u16, data + 6, sizeof(u16)); |
1086 | snprintf(buf, sizeof(buf), "%s %s:%hu", |
1087 | log_ext_subtype(type, subtype), |
1088 | 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))); |
1089 | return buf; |
1090 | case EXT_COMMUNITY_TRANS_OPAQUE0x03: |
1091 | case EXT_COMMUNITY_TRANS_EVPN0x06: |
1092 | memcpy(&ext, data, sizeof(ext)); |
1093 | 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; |
1094 | snprintf(buf, sizeof(buf), "%s 0x%llx", |
1095 | log_ext_subtype(type, subtype), (unsigned long long)ext); |
1096 | return buf; |
1097 | case EXT_COMMUNITY_NON_TRANS_OPAQUE0x43: |
1098 | memcpy(&ext, data, sizeof(ext)); |
1099 | 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; |
1100 | if (subtype == EXT_COMMUNITY_SUBTYPE_OVS0) { |
1101 | switch (ext) { |
1102 | case EXT_COMMUNITY_OVS_VALID0: |
1103 | snprintf(buf, sizeof(buf), "%s valid", |
1104 | log_ext_subtype(type, subtype)); |
1105 | return buf; |
1106 | case EXT_COMMUNITY_OVS_NOTFOUND1: |
1107 | snprintf(buf, sizeof(buf), "%s not-found", |
1108 | log_ext_subtype(type, subtype)); |
1109 | return buf; |
1110 | case EXT_COMMUNITY_OVS_INVALID2: |
1111 | snprintf(buf, sizeof(buf), "%s invalid", |
1112 | log_ext_subtype(type, subtype)); |
1113 | return buf; |
1114 | default: |
1115 | snprintf(buf, sizeof(buf), "%s 0x%llx", |
1116 | log_ext_subtype(type, subtype), |
1117 | (unsigned long long)ext); |
1118 | return buf; |
1119 | } |
1120 | } else { |
1121 | snprintf(buf, sizeof(buf), "%s 0x%llx", |
1122 | log_ext_subtype(type, subtype), |
1123 | (unsigned long long)ext); |
1124 | return buf; |
1125 | } |
1126 | break; |
1127 | default: |
1128 | memcpy(&ext, data, sizeof(ext)); |
1129 | snprintf(buf, sizeof(buf), "%s 0x%llx", |
1130 | log_ext_subtype(type, subtype), |
1131 | (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))); |
1132 | return buf; |
1133 | } |
1134 | } |
1135 | |
1136 | const char * |
1137 | fmt_set_type(struct ctl_show_set *set) |
1138 | { |
1139 | switch (set->type) { |
1140 | case ASPA_SET: |
1141 | return "ASPA"; |
1142 | case ROA_SET: |
1143 | return "ROA"; |
1144 | case PREFIX_SET: |
1145 | return "PREFIX"; |
1146 | case ORIGIN_SET: |
1147 | return "ORIGIN"; |
1148 | case ASNUM_SET: |
1149 | return "ASNUM"; |
1150 | default: |
1151 | return "BULA"; |
1152 | } |
1153 | } |
1154 | |
1155 | void |
1156 | send_filterset(struct imsgbuf *i, struct filter_set_head *set) |
1157 | { |
1158 | struct filter_set *s; |
1159 | |
1160 | while ((s = TAILQ_FIRST(set)((set)->tqh_first)) != NULL((void *)0)) { |
1161 | imsg_compose(i, IMSG_FILTER_SET, 0, 0, -1, s, |
1162 | sizeof(struct filter_set)); |
1163 | 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); |
1164 | free(s); |
1165 | } |
1166 | } |
1167 | |
1168 | void |
1169 | network_bulk(struct parse_result *res) |
1170 | { |
1171 | struct network_config net; |
1172 | struct filter_set *s = NULL((void *)0); |
1173 | struct bgpd_addr h; |
1174 | char *line = NULL((void *)0); |
1175 | size_t linesize = 0; |
1176 | ssize_t linelen; |
1177 | uint8_t len; |
1178 | FILE *f; |
1179 | |
1180 | if ((f = fdopen(STDIN_FILENO0, "r")) == NULL((void *)0)) |
1181 | err(1, "Failed to open stdin\n"); |
1182 | |
1183 | 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' | |
1184 | char *b, *buf = line; |
1185 | while ((b = strsep(&buf, " \t\n")) != NULL((void *)0)) { |
1186 | if (*b == '\0') /* skip empty tokens */ |
1187 | continue; |
1188 | /* Stop processing after a comment */ |
1189 | if (*b == '#') |
1190 | break; |
1191 | memset(&net, 0, sizeof(net)); |
1192 | if (parse_prefix(b, strlen(b), &h, &len) != 1) |
1193 | errx(1, "bad prefix: %s", b); |
1194 | net.prefix = h; |
1195 | net.prefixlen = len; |
1196 | net.rd = res->rd; |
1197 | |
1198 | if (res->action == NETWORK_BULK_ADD) { |
1199 | imsg_compose(imsgbuf, IMSG_NETWORK_ADD, |
1200 | 0, 0, -1, &net, sizeof(net)); |
1201 | /* |
1202 | * can't use send_filterset since that |
1203 | * would free the set. |
1204 | */ |
1205 | TAILQ_FOREACH(s, &res->set, entry)for((s) = ((&res->set)->tqh_first); (s) != ((void * )0); (s) = ((s)->entry.tqe_next)) { |
1206 | imsg_compose(imsgbuf, |
1207 | IMSG_FILTER_SET, |
1208 | 0, 0, -1, s, sizeof(*s)); |
1209 | } |
1210 | imsg_compose(imsgbuf, IMSG_NETWORK_DONE, |
1211 | 0, 0, -1, NULL((void *)0), 0); |
1212 | } else |
1213 | imsg_compose(imsgbuf, IMSG_NETWORK_REMOVE, |
1214 | 0, 0, -1, &net, sizeof(net)); |
1215 | } |
1216 | } |
1217 | free(line); |
1218 | if (ferror(f)(!__isthreaded ? (((f)->_flags & 0x0040) != 0) : (ferror )(f))) |
1219 | err(1, "getline"); |
1220 | fclose(f); |
1221 | } |
1222 | |
1223 | void |
1224 | show_mrt_dump_neighbors(struct mrt_rib *mr, struct mrt_peer *mp, void *arg) |
1225 | { |
1226 | struct mrt_peer_entry *p; |
1227 | struct in_addr ina; |
1228 | uint16_t i; |
1229 | |
1230 | 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)); |
1231 | printf("view: %s BGP ID: %s Number of peers: %u\n\n", |
1232 | mp->view, inet_ntoa(ina), mp->npeers); |
1233 | printf("%-30s %8s %15s\n", "Neighbor", "AS", "BGP ID"); |
1234 | for (i = 0; i < mp->npeers; i++) { |
1235 | p = &mp->peers[i]; |
1236 | 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)); |
1237 | printf("%-30s %8u %15s\n", log_addr(&p->addr), p->asnum, |
1238 | inet_ntoa(ina)); |
1239 | } |
1240 | /* we only print the first message */ |
1241 | exit(0); |
1242 | } |
1243 | |
1244 | void |
1245 | show_mrt_dump(struct mrt_rib *mr, struct mrt_peer *mp, void *arg) |
1246 | { |
1247 | struct ctl_show_rib ctl; |
1248 | struct parse_result res; |
1249 | struct ctl_show_rib_request *req = arg; |
1250 | struct mrt_rib_entry *mre; |
1251 | time_t now; |
1252 | uint16_t i, j; |
1253 | |
1254 | memset(&res, 0, sizeof(res)); |
1255 | res.flags = req->flags; |
1256 | now = time(NULL((void *)0)); |
1257 | |
1258 | for (i = 0; i < mr->nentries; i++) { |
1259 | mre = &mr->entries[i]; |
1260 | memset(&ctl, 0, sizeof(ctl)); |
1261 | ctl.prefix = mr->prefix; |
1262 | ctl.prefixlen = mr->prefixlen; |
1263 | if (mre->originated <= now) |
1264 | ctl.age = now - mre->originated; |
1265 | ctl.true_nexthop = mre->nexthop; |
1266 | ctl.exit_nexthop = mre->nexthop; |
1267 | ctl.origin = mre->origin; |
1268 | ctl.local_pref = mre->local_pref; |
1269 | ctl.med = mre->med; |
1270 | /* weight is not part of the mrt dump so it can't be set */ |
1271 | if (mr->add_path) { |
1272 | ctl.flags |= F_PREF_PATH_ID0x040; |
1273 | ctl.path_id = mre->path_id; |
1274 | } |
1275 | |
1276 | if (mre->peer_idx < mp->npeers) { |
1277 | ctl.remote_addr = mp->peers[mre->peer_idx].addr; |
1278 | ctl.remote_id = mp->peers[mre->peer_idx].bgp_id; |
1279 | } |
1280 | |
1281 | /* filter by neighbor */ |
1282 | if (req->neighbor.addr.aid != AID_UNSPEC0 && |
1283 | memcmp(&req->neighbor.addr, &ctl.remote_addr, |
1284 | sizeof(ctl.remote_addr)) != 0) |
1285 | continue; |
1286 | /* filter by AF */ |
1287 | if (req->aid && req->aid != ctl.prefix.aid) |
1288 | return; |
1289 | /* filter by prefix */ |
1290 | if (req->prefix.aid != AID_UNSPEC0) { |
1291 | if (req->flags & F_LONGER0x0200) { |
1292 | if (req->prefixlen > ctl.prefixlen) |
1293 | return; |
1294 | if (prefix_compare(&req->prefix, &ctl.prefix, |
1295 | req->prefixlen)) |
1296 | return; |
1297 | } else if (req->flags & F_SHORTER0x0400) { |
1298 | if (req->prefixlen < ctl.prefixlen) |
1299 | return; |
1300 | if (prefix_compare(&req->prefix, &ctl.prefix, |
1301 | ctl.prefixlen)) |
1302 | return; |
1303 | } else { |
1304 | if (req->prefixlen != ctl.prefixlen) |
1305 | return; |
1306 | if (prefix_compare(&req->prefix, &ctl.prefix, |
1307 | req->prefixlen)) |
1308 | return; |
1309 | } |
1310 | } |
1311 | /* filter by AS */ |
1312 | if (req->as.type != AS_UNDEF && |
1313 | !match_aspath(mre->aspath, mre->aspath_len, &req->as)) |
1314 | continue; |
1315 | |
1316 | output->rib(&ctl, mre->aspath, mre->aspath_len, &res); |
1317 | if (req->flags & F_CTL_DETAIL0x1000) { |
1318 | for (j = 0; j < mre->nattrs; j++) |
1319 | output->attr(mre->attrs[j].attr, |
1320 | mre->attrs[j].attr_len, req->flags, 0); |
1321 | } |
1322 | } |
1323 | } |
1324 | |
1325 | void |
1326 | network_mrt_dump(struct mrt_rib *mr, struct mrt_peer *mp, void *arg) |
1327 | { |
1328 | struct ctl_show_rib ctl; |
1329 | struct network_config net; |
1330 | struct ctl_show_rib_request *req = arg; |
1331 | struct mrt_rib_entry *mre; |
1332 | struct ibuf *msg; |
1333 | time_t now; |
1334 | uint16_t i, j; |
1335 | |
1336 | /* can't announce more than one path so ignore add-path */ |
1337 | if (mr->add_path) |
1338 | return; |
1339 | |
1340 | now = time(NULL((void *)0)); |
1341 | for (i = 0; i < mr->nentries; i++) { |
1342 | mre = &mr->entries[i]; |
1343 | memset(&ctl, 0, sizeof(ctl)); |
1344 | ctl.prefix = mr->prefix; |
1345 | ctl.prefixlen = mr->prefixlen; |
1346 | if (mre->originated <= now) |
1347 | ctl.age = now - mre->originated; |
1348 | ctl.true_nexthop = mre->nexthop; |
1349 | ctl.exit_nexthop = mre->nexthop; |
1350 | ctl.origin = mre->origin; |
1351 | ctl.local_pref = mre->local_pref; |
1352 | ctl.med = mre->med; |
1353 | |
1354 | if (mre->peer_idx < mp->npeers) { |
1355 | ctl.remote_addr = mp->peers[mre->peer_idx].addr; |
1356 | ctl.remote_id = mp->peers[mre->peer_idx].bgp_id; |
1357 | } |
1358 | |
1359 | /* filter by neighbor */ |
1360 | if (req->neighbor.addr.aid != AID_UNSPEC0 && |
1361 | memcmp(&req->neighbor.addr, &ctl.remote_addr, |
1362 | sizeof(ctl.remote_addr)) != 0) |
1363 | continue; |
1364 | /* filter by AF */ |
1365 | if (req->aid && req->aid != ctl.prefix.aid) |
1366 | return; |
1367 | /* filter by prefix */ |
1368 | if (req->prefix.aid != AID_UNSPEC0) { |
1369 | if (!prefix_compare(&req->prefix, &ctl.prefix, |
1370 | req->prefixlen)) { |
1371 | if (req->flags & F_LONGER0x0200) { |
1372 | if (req->prefixlen > ctl.prefixlen) |
1373 | return; |
1374 | } else if (req->prefixlen != ctl.prefixlen) |
1375 | return; |
1376 | } else |
1377 | return; |
1378 | } |
1379 | /* filter by AS */ |
1380 | if (req->as.type != AS_UNDEF && |
1381 | !match_aspath(mre->aspath, mre->aspath_len, &req->as)) |
1382 | continue; |
1383 | |
1384 | memset(&net, 0, sizeof(net)); |
1385 | net.prefix = ctl.prefix; |
1386 | net.prefixlen = ctl.prefixlen; |
1387 | net.type = NETWORK_MRTCLONE; |
1388 | /* XXX rd can't be set and will be 0 */ |
1389 | |
1390 | imsg_compose(imsgbuf, IMSG_NETWORK_ADD, 0, 0, -1, |
1391 | &net, sizeof(net)); |
1392 | if ((msg = imsg_create(imsgbuf, IMSG_NETWORK_ASPATH, |
1393 | 0, 0, sizeof(ctl) + mre->aspath_len)) == NULL((void *)0)) |
1394 | errx(1, "imsg_create failure"); |
1395 | if (imsg_add(msg, &ctl, sizeof(ctl)) == -1 || |
1396 | imsg_add(msg, mre->aspath, mre->aspath_len) == -1) |
1397 | errx(1, "imsg_add failure"); |
1398 | imsg_close(imsgbuf, msg); |
1399 | for (j = 0; j < mre->nattrs; j++) |
1400 | imsg_compose(imsgbuf, IMSG_NETWORK_ATTR, 0, 0, -1, |
1401 | mre->attrs[j].attr, mre->attrs[j].attr_len); |
1402 | imsg_compose(imsgbuf, IMSG_NETWORK_DONE, 0, 0, -1, NULL((void *)0), 0); |
1403 | |
1404 | while (imsgbuf->w.queued) { |
1405 | if (msgbuf_write(&imsgbuf->w) <= 0 && errno(*__errno()) != EAGAIN35) |
1406 | err(1, "write error"); |
1407 | } |
1408 | } |
1409 | } |
1410 | |
1411 | static const char * |
1412 | fmt_time(struct timespec *t) |
1413 | { |
1414 | static char timebuf[32]; |
1415 | static struct timespec prevtime; |
1416 | struct timespec temp; |
1417 | |
1418 | 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); |
1419 | snprintf(timebuf, sizeof(timebuf), "%lld.%06ld", |
1420 | (long long)temp.tv_sec, temp.tv_nsec / 1000); |
1421 | prevtime = *t; |
1422 | return (timebuf); |
1423 | } |
1424 | |
1425 | void |
1426 | show_mrt_state(struct mrt_bgp_state *ms, void *arg) |
1427 | { |
1428 | printf("%s %s[%u] -> ", fmt_time(&ms->time), |
1429 | log_addr(&ms->src), ms->src_as); |
1430 | printf("%s[%u]: %s -> %s\n", log_addr(&ms->dst), ms->dst_as, |
1431 | statenames[ms->old_state], statenames[ms->new_state]); |
1432 | } |
1433 | |
1434 | static void |
1435 | print_afi(u_char *p, uint8_t len) |
1436 | { |
1437 | uint16_t afi; |
1438 | uint8_t safi, aid; |
1439 | |
1440 | if (len != 4) { |
1441 | printf("bad length"); |
1442 | return; |
1443 | } |
1444 | |
1445 | /* afi, 2 byte */ |
1446 | memcpy(&afi, p, sizeof(afi)); |
1447 | afi = ntohs(afi)(__uint16_t)(__builtin_constant_p(afi) ? (__uint16_t)(((__uint16_t )(afi) & 0xffU) << 8 | ((__uint16_t)(afi) & 0xff00U ) >> 8) : __swap16md(afi)); |
1448 | p += 2; |
1449 | /* reserved, 1 byte */ |
1450 | p += 1; |
1451 | /* safi, 1 byte */ |
1452 | memcpy(&safi, p, sizeof(safi)); |
1453 | if (afi2aid(afi, safi, &aid) == -1) |
1454 | printf("unknown afi %u safi %u", afi, safi); |
1455 | else |
1456 | printf("%s", aid2str(aid)); |
1457 | } |
1458 | |
1459 | static void |
1460 | print_capability(uint8_t capa_code, u_char *p, uint8_t len) |
1461 | { |
1462 | switch (capa_code) { |
1463 | case CAPA_MP: |
1464 | printf("multiprotocol capability: "); |
1465 | print_afi(p, len); |
1466 | break; |
1467 | case CAPA_REFRESH: |
1468 | printf("route refresh capability"); |
1469 | break; |
1470 | case CAPA_RESTART: |
1471 | printf("graceful restart capability"); |
1472 | /* XXX there is more needed here */ |
1473 | break; |
1474 | case CAPA_AS4BYTE: |
1475 | printf("4-byte AS num capability: "); |
1476 | if (len == 4) { |
1477 | uint32_t as; |
1478 | memcpy(&as, p, sizeof(as)); |
1479 | 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)); |
1480 | printf("AS %u", as); |
1481 | } else |
1482 | printf("bad length"); |
1483 | break; |
1484 | case CAPA_ADD_PATH: |
1485 | printf("add-path capability"); |
1486 | /* XXX there is more needed here */ |
1487 | break; |
1488 | case CAPA_ENHANCED_RR: |
1489 | printf("enhanced route refresh capability"); |
1490 | break; |
1491 | default: |
1492 | printf("unknown capability %u length %u", capa_code, len); |
1493 | break; |
1494 | } |
1495 | } |
1496 | |
1497 | static void |
1498 | print_notification(uint8_t errcode, uint8_t subcode) |
1499 | { |
1500 | const char *suberrname = NULL((void *)0); |
1501 | int uk = 0; |
1502 | |
1503 | switch (errcode) { |
1504 | case ERR_HEADER: |
1505 | if (subcode >= sizeof(suberr_header_names)/sizeof(char *)) |
1506 | uk = 1; |
1507 | else |
1508 | suberrname = suberr_header_names[subcode]; |
1509 | break; |
1510 | case ERR_OPEN: |
1511 | if (subcode >= sizeof(suberr_open_names)/sizeof(char *)) |
1512 | uk = 1; |
1513 | else |
1514 | suberrname = suberr_open_names[subcode]; |
1515 | break; |
1516 | case ERR_UPDATE: |
1517 | if (subcode >= sizeof(suberr_update_names)/sizeof(char *)) |
1518 | uk = 1; |
1519 | else |
1520 | suberrname = suberr_update_names[subcode]; |
1521 | break; |
1522 | case ERR_CEASE: |
1523 | if (subcode >= sizeof(suberr_cease_names)/sizeof(char *)) |
1524 | uk = 1; |
1525 | else |
1526 | suberrname = suberr_cease_names[subcode]; |
1527 | break; |
1528 | case ERR_HOLDTIMEREXPIRED: |
1529 | if (subcode != 0) |
1530 | uk = 1; |
1531 | break; |
1532 | case ERR_FSM: |
1533 | if (subcode >= sizeof(suberr_fsm_names)/sizeof(char *)) |
1534 | uk = 1; |
1535 | else |
1536 | suberrname = suberr_fsm_names[subcode]; |
1537 | break; |
1538 | default: |
1539 | printf("unknown errcode %u, subcode %u", |
1540 | errcode, subcode); |
1541 | return; |
1542 | } |
1543 | |
1544 | if (uk) |
1545 | printf("%s, unknown subcode %u", errnames[errcode], subcode); |
1546 | else { |
1547 | if (suberrname == NULL((void *)0)) |
1548 | printf("%s", errnames[errcode]); |
1549 | else |
1550 | printf("%s, %s", errnames[errcode], suberrname); |
1551 | } |
1552 | } |
1553 | |
1554 | static int |
1555 | show_mrt_capabilities(u_char *p, uint16_t len) |
1556 | { |
1557 | uint16_t totlen = len; |
1558 | uint8_t capa_code, capa_len; |
1559 | |
1560 | while (len > 2) { |
1561 | memcpy(&capa_code, p, sizeof(capa_code)); |
1562 | p += sizeof(capa_code); |
1563 | len -= sizeof(capa_code); |
1564 | memcpy(&capa_len, p, sizeof(capa_len)); |
1565 | p += sizeof(capa_len); |
1566 | len -= sizeof(capa_len); |
1567 | if (len < capa_len) { |
1568 | printf("capa_len %u exceeds remaining length", |
1569 | capa_len); |
1570 | return (-1); |
1571 | } |
1572 | printf("\n "); |
1573 | print_capability(capa_code, p, capa_len); |
1574 | p += capa_len; |
1575 | len -= capa_len; |
1576 | } |
1577 | if (len != 0) { |
1578 | printf("length mismatch while capability parsing"); |
1579 | return (-1); |
1580 | } |
1581 | return (totlen); |
1582 | } |
1583 | |
1584 | static void |
1585 | show_mrt_open(u_char *p, uint16_t len) |
1586 | { |
1587 | uint16_t short_as, holdtime; |
1588 | uint8_t version, optparamlen; |
1589 | struct in_addr bgpid; |
1590 | |
1591 | /* length check up to optparamlen already happened */ |
1592 | memcpy(&version, p, sizeof(version)); |
1593 | p += sizeof(version); |
1594 | len -= sizeof(version); |
1595 | memcpy(&short_as, p, sizeof(short_as)); |
1596 | p += sizeof(short_as); |
1597 | len -= sizeof(short_as); |
1598 | 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)); |
1599 | memcpy(&holdtime, p, sizeof(holdtime)); |
1600 | holdtime = ntohs(holdtime)(__uint16_t)(__builtin_constant_p(holdtime) ? (__uint16_t)((( __uint16_t)(holdtime) & 0xffU) << 8 | ((__uint16_t) (holdtime) & 0xff00U) >> 8) : __swap16md(holdtime)); |
1601 | p += sizeof(holdtime); |
1602 | len -= sizeof(holdtime); |
1603 | memcpy(&bgpid, p, sizeof(bgpid)); |
1604 | p += sizeof(bgpid); |
1605 | len -= sizeof(bgpid); |
1606 | memcpy(&optparamlen, p, sizeof(optparamlen)); |
1607 | p += sizeof(optparamlen); |
1608 | len -= sizeof(optparamlen); |
1609 | |
1610 | printf("\n "); |
1611 | printf("Version: %d AS: %u Holdtime: %u BGP Id: %s Paramlen: %u", |
1612 | version, short_as, holdtime, inet_ntoa(bgpid), optparamlen); |
1613 | if (optparamlen != len) { |
1614 | printf("optional parameter length mismatch"); |
1615 | return; |
1616 | } |
1617 | while (len > 2) { |
1618 | uint8_t op_type, op_len; |
1619 | int r; |
1620 | |
1621 | memcpy(&op_type, p, sizeof(op_type)); |
1622 | p += sizeof(op_type); |
1623 | len -= sizeof(op_type); |
1624 | memcpy(&op_len, p, sizeof(op_len)); |
1625 | p += sizeof(op_len); |
1626 | len -= sizeof(op_len); |
1627 | |
1628 | printf("\n "); |
1629 | switch (op_type) { |
1630 | case OPT_PARAM_CAPABILITIES: |
1631 | printf("Capabilities: size %u", op_len); |
1632 | r = show_mrt_capabilities(p, op_len); |
1633 | if (r == -1) |
1634 | return; |
1635 | p += r; |
1636 | len -= r; |
1637 | break; |
1638 | case OPT_PARAM_AUTH: |
1639 | default: |
1640 | printf("unsupported optional parameter: type %u", |
1641 | op_type); |
1642 | return; |
1643 | } |
1644 | } |
1645 | if (len != 0) { |
1646 | printf("optional parameter encoding error"); |
1647 | return; |
1648 | } |
1649 | } |
1650 | |
1651 | static void |
1652 | show_mrt_notification(u_char *p, uint16_t len) |
1653 | { |
1654 | uint16_t i; |
1655 | uint8_t errcode, subcode; |
1656 | size_t reason_len; |
1657 | char reason[REASON_LEN256]; |
1658 | |
1659 | memcpy(&errcode, p, sizeof(errcode)); |
1660 | p += sizeof(errcode); |
1661 | len -= sizeof(errcode); |
1662 | |
1663 | memcpy(&subcode, p, sizeof(subcode)); |
1664 | p += sizeof(subcode); |
1665 | len -= sizeof(subcode); |
1666 | |
1667 | printf("\n "); |
1668 | print_notification(errcode, subcode); |
1669 | |
1670 | if (errcode == ERR_CEASE && (subcode == ERR_CEASE_ADMIN_DOWN || |
1671 | subcode == ERR_CEASE_ADMIN_RESET)) { |
1672 | if (len > 1) { |
1673 | reason_len = *p++; |
1674 | len--; |
1675 | if (len < reason_len) { |
1676 | printf("truncated shutdown reason"); |
1677 | return; |
1678 | } |
1679 | if (reason_len > REASON_LEN256 - 1) { |
1680 | printf("overly long shutdown reason"); |
1681 | return; |
1682 | } |
1683 | memcpy(reason, p, reason_len); |
1684 | reason[reason_len] = '\0'; |
1685 | printf("shutdown reason: \"%s\"", |
1686 | log_reason(reason)); |
1687 | p += reason_len; |
1688 | len -= reason_len; |
1689 | } |
1690 | } |
1691 | if (errcode == ERR_OPEN && subcode == ERR_OPEN_CAPA) { |
1692 | int r; |
1693 | |
1694 | r = show_mrt_capabilities(p, len); |
1695 | if (r == -1) |
1696 | return; |
1697 | p += r; |
1698 | len -= r; |
1699 | } |
1700 | |
1701 | if (len > 0) { |
1702 | printf("\n additional data %u bytes", len); |
1703 | for (i = 0; i < len; i++) { |
1704 | if (i % 16 == 0) |
1705 | printf("\n "); |
1706 | if (i % 8 == 0) |
1707 | printf(" "); |
1708 | printf(" %02X", *p++); |
1709 | } |
1710 | } |
1711 | } |
1712 | |
1713 | /* XXX this function does not handle JSON output */ |
1714 | static void |
1715 | show_mrt_update(u_char *p, uint16_t len, int reqflags, int addpath) |
1716 | { |
1717 | struct bgpd_addr prefix; |
1718 | int pos; |
1719 | uint32_t pathid; |
1720 | uint16_t wlen, alen; |
1721 | uint8_t prefixlen; |
1722 | |
1723 | if (len < sizeof(wlen)) { |
1724 | printf("bad length"); |
1725 | return; |
1726 | } |
1727 | memcpy(&wlen, p, sizeof(wlen)); |
1728 | wlen = ntohs(wlen)(__uint16_t)(__builtin_constant_p(wlen) ? (__uint16_t)(((__uint16_t )(wlen) & 0xffU) << 8 | ((__uint16_t)(wlen) & 0xff00U ) >> 8) : __swap16md(wlen)); |
1729 | p += sizeof(wlen); |
1730 | len -= sizeof(wlen); |
1731 | |
1732 | if (len < wlen) { |
1733 | printf("bad withdraw length"); |
1734 | return; |
1735 | } |
1736 | if (wlen > 0) { |
1737 | printf("\n Withdrawn prefixes:"); |
1738 | while (wlen > 0) { |
1739 | if (addpath) { |
1740 | if (wlen <= sizeof(pathid)) { |
1741 | printf("bad withdraw prefix"); |
1742 | return; |
1743 | } |
1744 | memcpy(&pathid, p, sizeof(pathid)); |
1745 | 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)); |
1746 | p += sizeof(pathid); |
1747 | len -= sizeof(pathid); |
1748 | wlen -= sizeof(pathid); |
1749 | } |
1750 | if ((pos = nlri_get_prefix(p, wlen, &prefix, |
1751 | &prefixlen)) == -1) { |
1752 | printf("bad withdraw prefix"); |
1753 | return; |
1754 | } |
1755 | printf(" %s/%u", log_addr(&prefix), prefixlen); |
1756 | if (addpath) |
1757 | printf(" path-id %u", pathid); |
1758 | p += pos; |
1759 | len -= pos; |
1760 | wlen -= pos; |
1761 | } |
1762 | } |
1763 | |
1764 | if (len < sizeof(alen)) { |
1765 | printf("bad length"); |
1766 | return; |
1767 | } |
1768 | memcpy(&alen, p, sizeof(alen)); |
1769 | alen = ntohs(alen)(__uint16_t)(__builtin_constant_p(alen) ? (__uint16_t)(((__uint16_t )(alen) & 0xffU) << 8 | ((__uint16_t)(alen) & 0xff00U ) >> 8) : __swap16md(alen)); |
1770 | p += sizeof(alen); |
1771 | len -= sizeof(alen); |
1772 | |
1773 | if (len < alen) { |
1774 | printf("bad attribute length"); |
1775 | return; |
1776 | } |
1777 | printf("\n"); |
1778 | /* alen attributes here */ |
1779 | while (alen > 3) { |
1780 | uint8_t flags; |
1781 | uint16_t attrlen; |
1782 | |
1783 | flags = p[0]; |
1784 | /* type = p[1]; */ |
1785 | |
1786 | /* get the attribute length */ |
1787 | if (flags & ATTR_EXTLEN0x10) { |
1788 | if (len < sizeof(attrlen) + 2) |
1789 | printf("bad attribute length"); |
1790 | memcpy(&attrlen, &p[2], sizeof(attrlen)); |
1791 | attrlen = ntohs(attrlen)(__uint16_t)(__builtin_constant_p(attrlen) ? (__uint16_t)(((__uint16_t )(attrlen) & 0xffU) << 8 | ((__uint16_t)(attrlen) & 0xff00U) >> 8) : __swap16md(attrlen)); |
1792 | attrlen += sizeof(attrlen) + 2; |
1793 | } else { |
1794 | attrlen = p[2]; |
1795 | attrlen += 1 + 2; |
1796 | } |
1797 | |
1798 | output->attr(p, attrlen, reqflags, addpath); |
1799 | p += attrlen; |
1800 | alen -= attrlen; |
1801 | len -= attrlen; |
1802 | } |
1803 | |
1804 | if (len > 0) { |
1805 | printf(" NLRI prefixes:"); |
1806 | while (len > 0) { |
1807 | if (addpath) { |
1808 | if (len <= sizeof(pathid)) { |
1809 | printf(" bad nlri prefix: pathid, " |
1810 | "len %d", len); |
1811 | return; |
1812 | } |
1813 | memcpy(&pathid, p, sizeof(pathid)); |
1814 | 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)); |
1815 | p += sizeof(pathid); |
1816 | len -= sizeof(pathid); |
1817 | } |
1818 | if ((pos = nlri_get_prefix(p, len, &prefix, |
1819 | &prefixlen)) == -1) { |
1820 | printf(" bad nlri prefix"); |
1821 | return; |
1822 | } |
1823 | printf(" %s/%u", log_addr(&prefix), prefixlen); |
1824 | if (addpath) |
1825 | printf(" path-id %u", pathid); |
1826 | p += pos; |
1827 | len -= pos; |
1828 | } |
1829 | } |
1830 | } |
1831 | |
1832 | void |
1833 | show_mrt_msg(struct mrt_bgp_msg *mm, void *arg) |
1834 | { |
1835 | static const uint8_t marker[MSGSIZE_HEADER_MARKER16] = { |
1836 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1837 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
1838 | u_char *p; |
1839 | uint16_t len; |
1840 | uint8_t type; |
1841 | struct ctl_show_rib_request *req = arg; |
1842 | |
1843 | printf("%s %s[%u] -> ", fmt_time(&mm->time), |
1844 | log_addr(&mm->src), mm->src_as); |
1845 | printf("%s[%u]: size %u%s ", log_addr(&mm->dst), mm->dst_as, |
1846 | mm->msg_len, mm->add_path ? " addpath" : ""); |
1847 | p = mm->msg; |
1848 | len = mm->msg_len; |
1849 | |
1850 | if (len < MSGSIZE_HEADER19) { |
1851 | printf("illegal header length: %u byte\n", len); |
1852 | return; |
1853 | } |
1854 | |
1855 | /* parse BGP message header */ |
1856 | if (memcmp(p, marker, sizeof(marker))) { |
1857 | printf("incorrect marker in BGP message\n"); |
1858 | return; |
1859 | } |
1860 | p += MSGSIZE_HEADER_MARKER16; |
1861 | |
1862 | memcpy(&len, p, 2); |
1863 | len = ntohs(len)(__uint16_t)(__builtin_constant_p(len) ? (__uint16_t)(((__uint16_t )(len) & 0xffU) << 8 | ((__uint16_t)(len) & 0xff00U ) >> 8) : __swap16md(len)); |
1864 | p += 2; |
1865 | memcpy(&type, p, 1); |
1866 | p += 1; |
1867 | |
1868 | if (len < MSGSIZE_HEADER19 || len > MAX_PKTSIZE4096) { |
1869 | printf("illegal header length: %u byte\n", len); |
1870 | return; |
1871 | } |
1872 | |
1873 | switch (type) { |
1874 | case OPEN: |
1875 | printf("%s ", msgtypenames[type]); |
1876 | if (len < MSGSIZE_OPEN_MIN29) { |
1877 | printf("illegal length: %u byte\n", len); |
1878 | return; |
1879 | } |
1880 | show_mrt_open(p, len - MSGSIZE_HEADER19); |
1881 | break; |
1882 | case NOTIFICATION: |
1883 | printf("%s ", msgtypenames[type]); |
1884 | if (len < MSGSIZE_NOTIFICATION_MIN21) { |
1885 | printf("illegal length: %u byte\n", len); |
1886 | return; |
1887 | } |
1888 | show_mrt_notification(p, len - MSGSIZE_HEADER19); |
1889 | break; |
1890 | case UPDATE: |
1891 | printf("%s ", msgtypenames[type]); |
1892 | if (len < MSGSIZE_UPDATE_MIN23) { |
1893 | printf("illegal length: %u byte\n", len); |
1894 | return; |
1895 | } |
1896 | show_mrt_update(p, len - MSGSIZE_HEADER19, req->flags, |
1897 | mm->add_path); |
1898 | break; |
1899 | case KEEPALIVE: |
1900 | printf("%s ", msgtypenames[type]); |
1901 | if (len != MSGSIZE_KEEPALIVE19) { |
1902 | printf("illegal length: %u byte\n", len); |
1903 | return; |
1904 | } |
1905 | /* nothing */ |
1906 | break; |
1907 | case RREFRESH: |
1908 | printf("%s ", msgtypenames[type]); |
1909 | if (len != MSGSIZE_RREFRESH(19 + 4)) { |
1910 | printf("illegal length: %u byte\n", len); |
1911 | return; |
1912 | } |
1913 | print_afi(p, len); |
1914 | break; |
1915 | default: |
1916 | printf("unknown type %u\n", type); |
1917 | return; |
1918 | } |
1919 | printf("\n"); |
1920 | } |
1921 | |
1922 | const char * |
1923 | msg_type(uint8_t type) |
1924 | { |
1925 | if (type >= sizeof(msgtypenames)/sizeof(msgtypenames[0])) |
1926 | return "BAD"; |
1927 | return (msgtypenames[type]); |
1928 | } |
1929 | |
1930 | int |
1931 | match_aspath(void *data, uint16_t len, struct filter_as *f) |
1932 | { |
1933 | uint8_t *seg; |
1934 | int final; |
1935 | uint16_t seg_size; |
1936 | uint8_t i, seg_len; |
1937 | uint32_t as = 0; |
1938 | |
1939 | if (f->type == AS_EMPTY) { |
1940 | if (len == 0) |
1941 | return (1); |
1942 | else |
1943 | return (0); |
1944 | } |
1945 | |
1946 | seg = data; |
1947 | |
1948 | /* just check the leftmost AS */ |
1949 | if (f->type == AS_PEER && len >= 6) { |
1950 | as = aspath_extract(seg, 0); |
1951 | if (f->as_min == as) |
1952 | return (1); |
1953 | else |
1954 | return (0); |
1955 | } |
1956 | |
1957 | for (; len >= 6; len -= seg_size, seg += seg_size) { |
1958 | seg_len = seg[1]; |
1959 | seg_size = 2 + sizeof(uint32_t) * seg_len; |
1960 | |
1961 | final = (len == seg_size); |
1962 | |
1963 | if (f->type == AS_SOURCE) { |
1964 | /* |
1965 | * Just extract the rightmost AS |
1966 | * but if that segment is an AS_SET then the rightmost |
1967 | * AS of a previous AS_SEQUENCE segment should be used. |
1968 | * Because of that just look at AS_SEQUENCE segments. |
1969 | */ |
1970 | if (seg[0] == AS_SEQUENCE2) |
1971 | as = aspath_extract(seg, seg_len - 1); |
1972 | /* not yet in the final segment */ |
1973 | if (!final) |
1974 | continue; |
1975 | if (f->as_min == as) |
1976 | return (1); |
1977 | else |
1978 | return (0); |
1979 | } |
1980 | /* AS_TRANSIT or AS_ALL */ |
1981 | for (i = 0; i < seg_len; i++) { |
1982 | /* |
1983 | * the source (rightmost) AS is excluded from |
1984 | * AS_TRANSIT matches. |
1985 | */ |
1986 | if (final && i == seg_len - 1 && f->type == AS_TRANSIT) |
1987 | return (0); |
1988 | as = aspath_extract(seg, i); |
1989 | if (f->as_min == as) |
1990 | return (1); |
1991 | } |
1992 | } |
1993 | return (0); |
1994 | } |
1995 | |
1996 | static void |
1997 | component_finish(int type, uint8_t *data, int len) |
1998 | { |
1999 | uint8_t *last; |
2000 | int i; |
2001 | |
2002 | switch (type) { |
2003 | case FLOWSPEC_TYPE_DEST1: |
2004 | case FLOWSPEC_TYPE_SOURCE2: |
2005 | /* nothing todo */ |
2006 | return; |
2007 | default: |
2008 | break; |
2009 | } |
2010 | |
2011 | i = 0; |
2012 | do { |
2013 | last = data + i; |
2014 | i += FLOWSPEC_OP_LEN(*last)(1 << (((*last) & 0x30) >> 4)) + 1; |
2015 | } while (i < len); |
2016 | *last |= FLOWSPEC_OP_EOL0x80; |
2017 | } |
2018 | |
2019 | static void |
2020 | push_prefix(struct parse_result *r, int type, struct bgpd_addr *addr, |
2021 | uint8_t len) |
2022 | { |
2023 | void *data; |
2024 | uint8_t *comp; |
2025 | int complen, l; |
2026 | |
2027 | switch (addr->aid) { |
2028 | case AID_UNSPEC0: |
2029 | return; |
2030 | case AID_INET1: |
2031 | complen = PREFIX_SIZE(len)(((len) + 7) / 8 + 1); |
2032 | data = &addr->v4ba.v4; |
2033 | break; |
2034 | case AID_INET62: |
2035 | /* IPv6 includes an offset byte */ |
2036 | complen = PREFIX_SIZE(len)(((len) + 7) / 8 + 1) + 1; |
2037 | data = &addr->v6ba.v6; |
2038 | break; |
2039 | default: |
2040 | errx(1, "unsupported address family for flowspec address"); |
2041 | } |
2042 | comp = malloc(complen); |
2043 | if (comp == NULL((void *)0)) |
2044 | err(1, NULL((void *)0)); |
2045 | |
2046 | l = 0; |
2047 | comp[l++] = len; |
2048 | if (addr->aid == AID_INET62) |
2049 | comp[l++] = 0; |
2050 | memcpy(comp + l, data, complen - l); |
2051 | |
2052 | r->flow.complen[type] = complen; |
2053 | r->flow.components[type] = comp; |
2054 | } |
2055 | |
2056 | |
2057 | struct flowspec * |
2058 | res_to_flowspec(struct parse_result *r) |
2059 | { |
2060 | struct flowspec *f; |
2061 | int i, len = 0; |
2062 | uint8_t aid; |
2063 | |
2064 | switch (r->aid) { |
2065 | case AID_INET1: |
2066 | aid = AID_FLOWSPECv45; |
2067 | break; |
2068 | case AID_INET62: |
2069 | aid = AID_FLOWSPECv66; |
2070 | break; |
2071 | default: |
2072 | errx(1, "unsupported AFI %s for flowspec rule", |
2073 | aid2str(r->aid)); |
2074 | } |
2075 | |
2076 | push_prefix(r, FLOWSPEC_TYPE_DEST1, &r->flow.dst, r->flow.dstlen); |
2077 | push_prefix(r, FLOWSPEC_TYPE_SOURCE2, &r->flow.src, r->flow.srclen); |
2078 | |
2079 | for (i = FLOWSPEC_TYPE_MIN1; i < FLOWSPEC_TYPE_MAX14; i++) |
2080 | if (r->flow.components[i] != NULL((void *)0)) |
2081 | len += r->flow.complen[i] + 1; |
2082 | |
2083 | if (len == 0) |
2084 | errx(1, "no flowspec rule defined"); |
2085 | |
2086 | f = malloc(FLOWSPEC_SIZE(__builtin_offsetof(struct flowspec, data)) + len); |
2087 | if (f == NULL((void *)0)) |
2088 | err(1, NULL((void *)0)); |
2089 | memset(f, 0, FLOWSPEC_SIZE(__builtin_offsetof(struct flowspec, data))); |
2090 | |
2091 | f->aid = aid; |
2092 | f->len = len; |
2093 | |
2094 | len = 0; |
2095 | for (i = FLOWSPEC_TYPE_MIN1; i < FLOWSPEC_TYPE_MAX14; i++) |
2096 | if (r->flow.components[i] != NULL((void *)0)) { |
2097 | f->data[len++] = i; |
2098 | component_finish(i, r->flow.components[i], |
2099 | r->flow.complen[i]); |
2100 | memcpy(f->data + len, r->flow.components[i], |
2101 | r->flow.complen[i]); |
2102 | len += r->flow.complen[i]; |
2103 | } |
2104 | |
2105 | return f; |
2106 | } |