| File: | src/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 | } |