bgpd.c revision 1.124
1/* $OpenBSD: bgpd.c,v 1.124 2005/10/13 09:09:20 claudio Exp $ */ 2 3/* 4 * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19#include <sys/types.h> 20#include <sys/socket.h> 21#include <sys/wait.h> 22#include <netinet/in.h> 23#include <arpa/inet.h> 24#include <err.h> 25#include <errno.h> 26#include <fcntl.h> 27#include <poll.h> 28#include <pwd.h> 29#include <signal.h> 30#include <stdio.h> 31#include <stdlib.h> 32#include <string.h> 33#include <unistd.h> 34 35#include "mrt.h" 36#include "bgpd.h" 37#include "session.h" 38 39void sighdlr(int); 40__dead void usage(void); 41int main(int, char *[]); 42int check_child(pid_t, const char *); 43int send_filterset(struct imsgbuf *, struct filter_set_head *, 44 int); 45int reconfigure(char *, struct bgpd_config *, struct mrt_head *, 46 struct peer **, struct filter_head *); 47int dispatch_imsg(struct imsgbuf *, int); 48 49int rfd = -1; 50int cflags = 0; 51struct filter_set_head *connectset; 52struct filter_set_head *connectset6; 53struct filter_set_head *staticset; 54struct filter_set_head *staticset6; 55volatile sig_atomic_t mrtdump = 0; 56volatile sig_atomic_t quit = 0; 57volatile sig_atomic_t reconfig = 0; 58volatile sig_atomic_t sigchld = 0; 59struct imsgbuf *ibuf_se; 60struct imsgbuf *ibuf_rde; 61 62void 63sighdlr(int sig) 64{ 65 switch (sig) { 66 case SIGTERM: 67 case SIGINT: 68 quit = 1; 69 break; 70 case SIGCHLD: 71 sigchld = 1; 72 break; 73 case SIGHUP: 74 reconfig = 1; 75 break; 76 case SIGALRM: 77 case SIGUSR1: 78 mrtdump = 1; 79 break; 80 } 81} 82 83__dead void 84usage(void) 85{ 86 extern char *__progname; 87 88 fprintf(stderr, "usage: %s [-dnv] ", __progname); 89 fprintf(stderr, "[-D macro=value] [-f file]\n"); 90 exit(1); 91} 92 93#define PFD_PIPE_SESSION 0 94#define PFD_PIPE_ROUTE 1 95#define PFD_SOCK_ROUTE 2 96#define POLL_MAX 3 97#define MAX_TIMEOUT 3600 98 99int 100main(int argc, char *argv[]) 101{ 102 struct bgpd_config conf; 103 struct peer *peer_l, *p; 104 struct mrt_head mrt_l; 105 struct network_head net_l; 106 struct filter_head *rules_l; 107 struct network *net; 108 struct filter_rule *r; 109 struct mrt *m; 110 struct listen_addr *la; 111 struct pollfd pfd[POLL_MAX]; 112 pid_t io_pid = 0, rde_pid = 0, pid; 113 char *conffile; 114 int debug = 0; 115 int ch, timeout; 116 int pipe_m2s[2]; 117 int pipe_m2r[2]; 118 int pipe_s2r[2]; 119 120 conffile = CONFFILE; 121 bgpd_process = PROC_MAIN; 122 123 log_init(1); /* log to stderr until daemonized */ 124 125 if ((rules_l = calloc(1, sizeof(struct filter_head))) == NULL) 126 err(1, NULL); 127 128 bzero(&conf, sizeof(conf)); 129 LIST_INIT(&mrt_l); 130 TAILQ_INIT(&net_l); 131 TAILQ_INIT(rules_l); 132 peer_l = NULL; 133 134 while ((ch = getopt(argc, argv, "dD:f:nv")) != -1) { 135 switch (ch) { 136 case 'd': 137 debug = 1; 138 break; 139 case 'D': 140 if (cmdline_symset(optarg) < 0) 141 log_warnx("could not parse macro definition %s", 142 optarg); 143 break; 144 case 'f': 145 conffile = optarg; 146 break; 147 case 'n': 148 conf.opts |= BGPD_OPT_NOACTION; 149 break; 150 case 'v': 151 if (conf.opts & BGPD_OPT_VERBOSE) 152 conf.opts |= BGPD_OPT_VERBOSE2; 153 conf.opts |= BGPD_OPT_VERBOSE; 154 break; 155 default: 156 usage(); 157 /* NOTREACHED */ 158 } 159 } 160 161 if (parse_config(conffile, &conf, &mrt_l, &peer_l, &net_l, rules_l)) { 162 free(rules_l); 163 exit(1); 164 } 165 166 if (conf.opts & BGPD_OPT_NOACTION) { 167 if (conf.opts & BGPD_OPT_VERBOSE) 168 print_config(&conf, &net_l, peer_l, rules_l, &mrt_l); 169 else 170 fprintf(stderr, "configuration OK\n"); 171 exit(0); 172 } 173 cflags = conf.flags; 174 connectset = &conf.connectset; 175 staticset = &conf.staticset; 176 connectset6 = &conf.connectset6; 177 staticset6 = &conf.staticset6; 178 179 if (geteuid()) 180 errx(1, "need root privileges"); 181 182 if (getpwnam(BGPD_USER) == NULL) 183 errx(1, "unknown user %s", BGPD_USER); 184 185 log_init(debug); 186 187 if (!debug) 188 daemon(1, 0); 189 190 log_info("startup"); 191 192 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_m2s) == -1) 193 fatal("socketpair"); 194 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_m2r) == -1) 195 fatal("socketpair"); 196 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_s2r) == -1) 197 fatal("socketpair"); 198 session_socket_blockmode(pipe_m2s[0], BM_NONBLOCK); 199 session_socket_blockmode(pipe_m2s[1], BM_NONBLOCK); 200 session_socket_blockmode(pipe_m2r[0], BM_NONBLOCK); 201 session_socket_blockmode(pipe_m2r[1], BM_NONBLOCK); 202 session_socket_blockmode(pipe_s2r[0], BM_NONBLOCK); 203 session_socket_blockmode(pipe_s2r[1], BM_NONBLOCK); 204 205 prepare_listeners(&conf); 206 207 /* fork children */ 208 rde_pid = rde_main(&conf, peer_l, &net_l, rules_l, &mrt_l, 209 pipe_m2r, pipe_s2r, pipe_m2s); 210 io_pid = session_main(&conf, peer_l, &net_l, rules_l, &mrt_l, 211 pipe_m2s, pipe_s2r, pipe_m2r); 212 213 setproctitle("parent"); 214 215 signal(SIGTERM, sighdlr); 216 signal(SIGINT, sighdlr); 217 signal(SIGCHLD, sighdlr); 218 signal(SIGHUP, sighdlr); 219 signal(SIGALRM, sighdlr); 220 signal(SIGUSR1, sighdlr); 221 222 close(pipe_m2s[1]); 223 close(pipe_m2r[1]); 224 close(pipe_s2r[0]); 225 close(pipe_s2r[1]); 226 227 if ((ibuf_se = malloc(sizeof(struct imsgbuf))) == NULL || 228 (ibuf_rde = malloc(sizeof(struct imsgbuf))) == NULL) 229 fatal(NULL); 230 imsg_init(ibuf_se, pipe_m2s[0]); 231 imsg_init(ibuf_rde, pipe_m2r[0]); 232 mrt_init(ibuf_rde, ibuf_se); 233 if ((rfd = kr_init(!(conf.flags & BGPD_FLAG_NO_FIB_UPDATE))) == -1) 234 quit = 1; 235 if (pftable_clear_all() != 0) 236 quit = 1; 237 238 while ((net = TAILQ_FIRST(&net_l)) != NULL) { 239 TAILQ_REMOVE(&net_l, net, entry); 240 free(net); 241 } 242 243 while ((r = TAILQ_FIRST(rules_l)) != NULL) { 244 TAILQ_REMOVE(rules_l, r, entry); 245 free(r); 246 } 247 TAILQ_FOREACH(la, conf.listen_addrs, entry) { 248 close(la->fd); 249 la->fd = -1; 250 } 251 252 mrt_reconfigure(&mrt_l); 253 254 while (quit == 0) { 255 pfd[PFD_PIPE_SESSION].fd = ibuf_se->fd; 256 pfd[PFD_PIPE_SESSION].events = POLLIN; 257 if (ibuf_se->w.queued) 258 pfd[PFD_PIPE_SESSION].events |= POLLOUT; 259 pfd[PFD_PIPE_ROUTE].fd = ibuf_rde->fd; 260 pfd[PFD_PIPE_ROUTE].events = POLLIN; 261 if (ibuf_rde->w.queued) 262 pfd[PFD_PIPE_ROUTE].events |= POLLOUT; 263 pfd[PFD_SOCK_ROUTE].fd = rfd; 264 pfd[PFD_SOCK_ROUTE].events = POLLIN; 265 266 timeout = mrt_timeout(&mrt_l); 267 if (timeout > MAX_TIMEOUT) 268 timeout = MAX_TIMEOUT; 269 270 if (poll(pfd, POLL_MAX, timeout * 1000) == -1) 271 if (errno != EINTR) { 272 log_warn("poll error"); 273 quit = 1; 274 } 275 276 if (pfd[PFD_PIPE_SESSION].revents & POLLOUT) 277 if (msgbuf_write(&ibuf_se->w) < 0) { 278 log_warn("pipe write error (to SE)"); 279 quit = 1; 280 } 281 282 if (pfd[PFD_PIPE_ROUTE].revents & POLLOUT) 283 if (msgbuf_write(&ibuf_rde->w) < 0) { 284 log_warn("pipe write error (to RDE)"); 285 quit = 1; 286 } 287 288 if (pfd[PFD_PIPE_SESSION].revents & POLLIN) { 289 if (dispatch_imsg(ibuf_se, PFD_PIPE_SESSION) == -1) 290 quit = 1; 291 } 292 293 if (pfd[PFD_PIPE_ROUTE].revents & POLLIN) { 294 if (dispatch_imsg(ibuf_rde, PFD_PIPE_ROUTE) == -1) 295 quit = 1; 296 } 297 298 if (pfd[PFD_SOCK_ROUTE].revents & POLLIN) { 299 if (kr_dispatch_msg() == -1) 300 quit = 1; 301 } 302 303 if (reconfig) { 304 reconfig = 0; 305 log_info("rereading config"); 306 reconfigure(conffile, &conf, &mrt_l, &peer_l, rules_l); 307 } 308 309 if (sigchld) { 310 sigchld = 0; 311 if (check_child(io_pid, "session engine")) { 312 quit = 1; 313 io_pid = 0; 314 } 315 if (check_child(rde_pid, "route decision engine")) { 316 quit = 1; 317 rde_pid = 0; 318 } 319 } 320 321 if (mrtdump == 1) { 322 mrtdump = 0; 323 mrt_handler(&mrt_l); 324 } 325 } 326 327 signal(SIGCHLD, SIG_IGN); 328 329 if (io_pid) 330 kill(io_pid, SIGTERM); 331 332 if (rde_pid) 333 kill(rde_pid, SIGTERM); 334 335 while ((p = peer_l) != NULL) { 336 peer_l = p->next; 337 free(p); 338 } 339 while ((m = LIST_FIRST(&mrt_l)) != NULL) { 340 LIST_REMOVE(m, entry); 341 free(m); 342 } 343 while ((la = TAILQ_FIRST(conf.listen_addrs)) != NULL) { 344 TAILQ_REMOVE(conf.listen_addrs, la, entry); 345 close(la->fd); 346 free(la); 347 } 348 349 free(rules_l); 350 control_cleanup(); 351 kr_shutdown(); 352 pftable_clear_all(); 353 free(conf.listen_addrs); 354 355 do { 356 if ((pid = wait(NULL)) == -1 && 357 errno != EINTR && errno != ECHILD) 358 fatal("wait"); 359 } while (pid != -1 || (pid == -1 && errno == EINTR)); 360 361 msgbuf_clear(&ibuf_se->w); 362 free(ibuf_se); 363 msgbuf_clear(&ibuf_rde->w); 364 free(ibuf_rde); 365 366 log_info("Terminating"); 367 return (0); 368} 369 370int 371check_child(pid_t pid, const char *pname) 372{ 373 int status; 374 375 if (waitpid(pid, &status, WNOHANG) > 0) { 376 if (WIFEXITED(status)) { 377 log_warnx("Lost child: %s exited", pname); 378 return (1); 379 } 380 if (WIFSIGNALED(status)) { 381 log_warnx("Lost child: %s terminated; signal %d", 382 pname, WTERMSIG(status)); 383 return (1); 384 } 385 } 386 387 return (0); 388} 389 390int 391send_filterset(struct imsgbuf *i, struct filter_set_head *set, int id) 392{ 393 struct filter_set *s; 394 395 TAILQ_FOREACH(s, set, entry) 396 if (imsg_compose(i, IMSG_FILTER_SET, id, 0, -1, s, 397 sizeof(struct filter_set)) == -1) 398 return (-1); 399 return (0); 400} 401 402int 403reconfigure(char *conffile, struct bgpd_config *conf, struct mrt_head *mrt_l, 404 struct peer **peer_l, struct filter_head *rules_l) 405{ 406 struct network_head net_l; 407 struct network *n; 408 struct peer *p; 409 struct filter_rule *r; 410 struct listen_addr *la; 411 412 if (parse_config(conffile, conf, mrt_l, peer_l, &net_l, rules_l)) { 413 log_warnx("config file %s has errors, not reloading", 414 conffile); 415 return (-1); 416 } 417 418 cflags = conf->flags; 419 connectset = &conf->connectset; 420 staticset = &conf->staticset; 421 connectset6 = &conf->connectset6; 422 staticset6 = &conf->staticset6; 423 424 prepare_listeners(conf); 425 426 if (imsg_compose(ibuf_se, IMSG_RECONF_CONF, 0, 0, -1, 427 conf, sizeof(struct bgpd_config)) == -1) 428 return (-1); 429 if (imsg_compose(ibuf_rde, IMSG_RECONF_CONF, 0, 0, -1, 430 conf, sizeof(struct bgpd_config)) == -1) 431 return (-1); 432 for (p = *peer_l; p != NULL; p = p->next) { 433 if (imsg_compose(ibuf_se, IMSG_RECONF_PEER, p->conf.id, 0, -1, 434 &p->conf, sizeof(struct peer_config)) == -1) 435 return (-1); 436 if (send_filterset(ibuf_se, &p->conf.attrset, 437 p->conf.id) == -1) 438 return (-1); 439 } 440 while ((n = TAILQ_FIRST(&net_l)) != NULL) { 441 if (imsg_compose(ibuf_rde, IMSG_NETWORK_ADD, 0, 0, -1, 442 &n->net, sizeof(struct network_config)) == -1) 443 return (-1); 444 if (send_filterset(ibuf_rde, &n->net.attrset, 0) == -1) 445 return (-1); 446 if (imsg_compose(ibuf_rde, IMSG_NETWORK_DONE, 0, 0, -1, 447 NULL, 0) == -1) 448 return (-1); 449 TAILQ_REMOVE(&net_l, n, entry); 450 filterset_free(&n->net.attrset); 451 free(n); 452 } 453 /* redistribute list needs to be reloaded too */ 454 if (kr_redist_reload() == -1) 455 return (-1); 456 457 while ((r = TAILQ_FIRST(rules_l)) != NULL) { 458 if (imsg_compose(ibuf_rde, IMSG_RECONF_FILTER, 0, 0, -1, 459 r, sizeof(struct filter_rule)) == -1) 460 return (-1); 461 if (send_filterset(ibuf_rde, &r->set, 0) == -1) 462 return (-1); 463 TAILQ_REMOVE(rules_l, r, entry); 464 filterset_free(&r->set); 465 free(r); 466 } 467 TAILQ_FOREACH(la, conf->listen_addrs, entry) { 468 if (imsg_compose(ibuf_se, IMSG_RECONF_LISTENER, 0, 0, la->fd, 469 la, sizeof(struct listen_addr)) == -1) 470 return (-1); 471 la->fd = -1; 472 } 473 474 if (imsg_compose(ibuf_se, IMSG_RECONF_DONE, 0, 0, -1, NULL, 0) == -1 || 475 imsg_compose(ibuf_rde, IMSG_RECONF_DONE, 0, 0, -1, NULL, 0) == -1) 476 return (-1); 477 478 /* mrt changes can be sent out of bound */ 479 mrt_reconfigure(mrt_l); 480 return (0); 481} 482 483int 484dispatch_imsg(struct imsgbuf *ibuf, int idx) 485{ 486 struct imsg imsg; 487 int n; 488 int rv; 489 490 if ((n = imsg_read(ibuf)) == -1) 491 return (-1); 492 493 if (n == 0) { /* connection closed */ 494 log_warnx("dispatch_imsg in main: pipe closed"); 495 return (-1); 496 } 497 498 rv = 0; 499 for (;;) { 500 if ((n = imsg_get(ibuf, &imsg)) == -1) 501 return (-1); 502 503 if (n == 0) 504 break; 505 506 switch (imsg.hdr.type) { 507 case IMSG_KROUTE_CHANGE: 508 if (idx != PFD_PIPE_ROUTE) 509 log_warnx("route request not from RDE"); 510 else if (kr_change(imsg.data)) 511 rv = -1; 512 break; 513 case IMSG_KROUTE_DELETE: 514 if (idx != PFD_PIPE_ROUTE) 515 log_warnx("route request not from RDE"); 516 else if (kr_delete(imsg.data)) 517 rv = -1; 518 break; 519 case IMSG_KROUTE6_CHANGE: 520 if (idx != PFD_PIPE_ROUTE) 521 log_warnx("route request not from RDE"); 522 else if (kr6_change(imsg.data)) 523 rv = -1; 524 break; 525 case IMSG_KROUTE6_DELETE: 526 if (idx != PFD_PIPE_ROUTE) 527 log_warnx("route request not from RDE"); 528 else if (kr6_delete(imsg.data)) 529 rv = -1; 530 break; 531 case IMSG_NEXTHOP_ADD: 532 if (idx != PFD_PIPE_ROUTE) 533 log_warnx("nexthop request not from RDE"); 534 else 535 if (imsg.hdr.len != IMSG_HEADER_SIZE + 536 sizeof(struct bgpd_addr)) 537 log_warnx("wrong imsg len"); 538 else if (kr_nexthop_add(imsg.data) == -1) 539 rv = -1; 540 break; 541 case IMSG_NEXTHOP_REMOVE: 542 if (idx != PFD_PIPE_ROUTE) 543 log_warnx("nexthop request not from RDE"); 544 else 545 if (imsg.hdr.len != IMSG_HEADER_SIZE + 546 sizeof(struct bgpd_addr)) 547 log_warnx("wrong imsg len"); 548 else 549 kr_nexthop_delete(imsg.data); 550 break; 551 case IMSG_PFTABLE_ADD: 552 if (idx != PFD_PIPE_ROUTE) 553 log_warnx("pftable request not from RDE"); 554 else 555 if (imsg.hdr.len != IMSG_HEADER_SIZE + 556 sizeof(struct pftable_msg)) 557 log_warnx("wrong imsg len"); 558 else if (pftable_addr_add(imsg.data) != 0) 559 rv = -1; 560 break; 561 case IMSG_PFTABLE_REMOVE: 562 if (idx != PFD_PIPE_ROUTE) 563 log_warnx("pftable request not from RDE"); 564 else 565 if (imsg.hdr.len != IMSG_HEADER_SIZE + 566 sizeof(struct pftable_msg)) 567 log_warnx("wrong imsg len"); 568 else if (pftable_addr_remove(imsg.data) != 0) 569 rv = -1; 570 break; 571 case IMSG_PFTABLE_COMMIT: 572 if (idx != PFD_PIPE_ROUTE) 573 log_warnx("pftable request not from RDE"); 574 else 575 if (imsg.hdr.len != IMSG_HEADER_SIZE) 576 log_warnx("wrong imsg len"); 577 else if (pftable_commit() != 0) 578 rv = -1; 579 break; 580 case IMSG_CTL_RELOAD: 581 if (idx != PFD_PIPE_SESSION) 582 log_warnx("reload request not from SE"); 583 else 584 reconfig = 1; 585 break; 586 case IMSG_CTL_FIB_COUPLE: 587 if (idx != PFD_PIPE_SESSION) 588 log_warnx("couple request not from SE"); 589 else 590 kr_fib_couple(); 591 break; 592 case IMSG_CTL_FIB_DECOUPLE: 593 if (idx != PFD_PIPE_SESSION) 594 log_warnx("decouple request not from SE"); 595 else 596 kr_fib_decouple(); 597 break; 598 case IMSG_CTL_KROUTE: 599 case IMSG_CTL_KROUTE_ADDR: 600 case IMSG_CTL_SHOW_NEXTHOP: 601 case IMSG_CTL_SHOW_INTERFACE: 602 if (idx != PFD_PIPE_SESSION) 603 log_warnx("kroute request not from SE"); 604 else 605 kr_show_route(&imsg); 606 break; 607 case IMSG_IFINFO: 608 if (idx != PFD_PIPE_SESSION) 609 log_warnx("IFINFO request not from SE"); 610 else if (imsg.hdr.len != IMSG_HEADER_SIZE + IFNAMSIZ) 611 log_warnx("IFINFO request with wrong len"); 612 else 613 kr_ifinfo(imsg.data); 614 break; 615 default: 616 break; 617 } 618 imsg_free(&imsg); 619 if (rv != 0) 620 return (rv); 621 } 622 return (0); 623} 624 625void 626send_nexthop_update(struct kroute_nexthop *msg) 627{ 628 char *gw = NULL; 629 630 if (msg->gateway.af) 631 if (asprintf(&gw, ": via %s", 632 log_addr(&msg->gateway)) == -1) { 633 log_warn("send_nexthop_update"); 634 quit = 1; 635 } 636 637 log_info("nexthop %s now %s%s%s", log_addr(&msg->nexthop), 638 msg->valid ? "valid" : "invalid", 639 msg->connected ? ": directly connected" : "", 640 msg->gateway.af ? gw : ""); 641 642 free(gw); 643 644 if (imsg_compose(ibuf_rde, IMSG_NEXTHOP_UPDATE, 0, 0, -1, 645 msg, sizeof(struct kroute_nexthop)) == -1) 646 quit = 1; 647} 648 649void 650send_imsg_session(int type, pid_t pid, void *data, u_int16_t datalen) 651{ 652 imsg_compose(ibuf_se, type, 0, pid, -1, data, datalen); 653} 654 655int 656bgpd_redistribute(int type, struct kroute *kr, struct kroute6 *kr6) 657{ 658 struct network_config net; 659 struct filter_set_head *h; 660 661 if ((cflags & BGPD_FLAG_REDIST_CONNECTED) && kr && 662 (kr->flags & F_CONNECTED)) 663 h = connectset; 664 else if ((cflags & BGPD_FLAG_REDIST_STATIC) && kr && 665 (kr->flags & F_STATIC)) 666 h = staticset; 667 else if ((cflags & BGPD_FLAG_REDIST6_CONNECTED) && kr6 && 668 (kr6->flags & F_CONNECTED)) 669 h = connectset6; 670 else if ((cflags & BGPD_FLAG_REDIST6_STATIC) && kr6 && 671 (kr6->flags & F_STATIC)) 672 h = staticset6; 673 else 674 return (0); 675 676 bzero(&net, sizeof(net)); 677 if (kr && kr6) 678 fatalx("bgpd_redistribute: unable to redistribute v4 and v6" 679 "together"); 680 if (kr != NULL) { 681 net.prefix.af = AF_INET; 682 net.prefix.v4.s_addr = kr->prefix.s_addr; 683 net.prefixlen = kr->prefixlen; 684 } 685 if (kr6 != NULL) { 686 net.prefix.af = AF_INET6; 687 memcpy(&net.prefix.v6, &kr6->prefix, sizeof(struct in6_addr)); 688 net.prefixlen = kr6->prefixlen; 689 } 690 691 692 if (imsg_compose(ibuf_rde, type, 0, 0, -1, &net, 693 sizeof(struct network_config)) == -1) 694 return (-1); 695 696 /* networks that get deleted don't need to send the filter set */ 697 if (type == IMSG_NETWORK_REMOVE) 698 return (1); 699 700 if (send_filterset(ibuf_rde, h, 0) == -1) 701 return (-1); 702 if (imsg_compose(ibuf_rde, IMSG_NETWORK_DONE, 0, 0, -1, NULL, 0) == -1) 703 return (-1); 704 705 return (1); 706} 707 708