| 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 | } |