1 /* $OpenBSD: ldapclient.c,v 1.45 2022/08/22 10:10:59 jmatthew Exp $ */ 2 3 /* 4 * Copyright (c) 2008 Alexander Schrijver <aschrijver@openbsd.org> 5 * Copyright (c) 2008 Pierre-Yves Ritschard <pyr@openbsd.org> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #include <sys/types.h> 21 #include <sys/queue.h> 22 #include <sys/socket.h> 23 #include <sys/tree.h> 24 25 #include <netinet/in.h> 26 #include <arpa/inet.h> 27 28 #include <netdb.h> 29 #include <errno.h> 30 #include <err.h> 31 #include <signal.h> 32 #include <event.h> 33 #include <fcntl.h> 34 #include <unistd.h> 35 #include <pwd.h> 36 #include <stdio.h> 37 #include <stdlib.h> 38 #include <string.h> 39 #include <limits.h> 40 41 #include "aldap.h" 42 #include "log.h" 43 #include "ypldap.h" 44 45 void client_sig_handler(int, short, void *); 46 void client_dispatch_dns(int, short, void *); 47 void client_dispatch_parent(int, short, void *); 48 void client_shutdown(void); 49 void client_connect(int, short, void *); 50 void client_configure(struct env *); 51 void client_periodic_update(int, short, void *); 52 int client_build_req(struct idm *, struct idm_req *, struct aldap_message *, 53 int, int); 54 int client_search_idm(struct env *, struct idm *, struct aldap *, 55 char **, char *, int, int, enum imsg_type); 56 int client_try_idm(struct env *, struct idm *); 57 void client_addr_init(struct idm *); 58 int client_addr_free(struct idm *); 59 60 struct aldap *client_aldap_open(struct ypldap_addr_list *); 61 62 /* 63 * dummy wrapper to provide aldap_init with its fd's. 64 */ 65 struct aldap * 66 client_aldap_open(struct ypldap_addr_list *addr) 67 { 68 int fd = -1; 69 struct ypldap_addr *p; 70 struct aldap *al; 71 72 TAILQ_FOREACH(p, addr, next) { 73 char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV]; 74 struct sockaddr *sa = (struct sockaddr *)&p->ss; 75 76 if (getnameinfo(sa, SA_LEN(sa), hbuf, sizeof(hbuf), sbuf, 77 sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV)) 78 errx(1, "could not get numeric hostname"); 79 80 if ((fd = socket(sa->sa_family, SOCK_STREAM, 0)) == -1) 81 return NULL; 82 83 if (connect(fd, sa, SA_LEN(sa)) == 0) 84 break; 85 86 log_warn("connect to %s port %s failed", hbuf, sbuf); 87 close(fd); 88 fd = -1; 89 } 90 91 if (fd == -1) 92 return NULL; 93 94 al = aldap_init(fd); 95 if (al == NULL) 96 close(fd); 97 return al; 98 } 99 100 void 101 client_addr_init(struct idm *idm) 102 { 103 struct sockaddr_in *sa_in; 104 struct sockaddr_in6 *sa_in6; 105 struct ypldap_addr *h; 106 int defport; 107 108 if (idm->idm_port != 0) 109 defport = idm->idm_port; 110 else if (idm->idm_flags & F_SSL) 111 defport = LDAPS_PORT; 112 else 113 defport = LDAP_PORT; 114 115 TAILQ_FOREACH(h, &idm->idm_addr, next) { 116 switch (h->ss.ss_family) { 117 case AF_INET: 118 sa_in = (struct sockaddr_in *)&h->ss; 119 if (ntohs(sa_in->sin_port) == 0) 120 sa_in->sin_port = htons(defport); 121 idm->idm_state = STATE_DNS_DONE; 122 break; 123 case AF_INET6: 124 sa_in6 = (struct sockaddr_in6 *)&h->ss; 125 if (ntohs(sa_in6->sin6_port) == 0) 126 sa_in6->sin6_port = htons(defport); 127 idm->idm_state = STATE_DNS_DONE; 128 break; 129 default: 130 fatalx("king bula sez: wrong AF in client_addr_init"); 131 /* not reached */ 132 } 133 } 134 } 135 136 int 137 client_addr_free(struct idm *idm) 138 { 139 struct ypldap_addr *h; 140 141 while (!TAILQ_EMPTY(&idm->idm_addr)) { 142 h = TAILQ_FIRST(&idm->idm_addr); 143 TAILQ_REMOVE(&idm->idm_addr, h, next); 144 free(h); 145 } 146 147 return (0); 148 } 149 150 void 151 client_sig_handler(int sig, short event, void *p) 152 { 153 switch (sig) { 154 case SIGINT: 155 case SIGTERM: 156 client_shutdown(); 157 break; 158 default: 159 fatalx("unexpected signal"); 160 } 161 } 162 163 void 164 client_dispatch_dns(int fd, short events, void *p) 165 { 166 struct imsg imsg; 167 u_int16_t dlen; 168 u_char *data; 169 struct ypldap_addr *h; 170 int n, wait_cnt = 0; 171 struct idm *idm; 172 int shut = 0; 173 174 struct env *env = p; 175 struct imsgev *iev = env->sc_iev_dns; 176 struct imsgbuf *ibuf = &iev->ibuf; 177 178 if ((events & (EV_READ | EV_WRITE)) == 0) 179 fatalx("unknown event"); 180 181 if (events & EV_READ) { 182 if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) 183 fatal("imsg_read error"); 184 if (n == 0) 185 shut = 1; 186 } 187 if (events & EV_WRITE) { 188 if ((n = msgbuf_write(&ibuf->w)) == -1 && errno != EAGAIN) 189 fatal("msgbuf_write"); 190 if (n == 0) 191 shut = 1; 192 goto done; 193 } 194 195 for (;;) { 196 if ((n = imsg_get(ibuf, &imsg)) == -1) 197 fatal("client_dispatch_dns: imsg_get error"); 198 if (n == 0) 199 break; 200 201 switch (imsg.hdr.type) { 202 case IMSG_HOST_DNS: 203 TAILQ_FOREACH(idm, &env->sc_idms, idm_entry) 204 if (idm->idm_id == imsg.hdr.peerid) 205 break; 206 if (idm == NULL) { 207 log_warnx("IMSG_HOST_DNS with invalid peerID"); 208 break; 209 } 210 if (!TAILQ_EMPTY(&idm->idm_addr)) { 211 log_warnx("IMSG_HOST_DNS but addrs set!"); 212 break; 213 } 214 215 dlen = imsg.hdr.len - IMSG_HEADER_SIZE; 216 if (dlen == 0) { /* no data -> temp error */ 217 idm->idm_state = STATE_DNS_TEMPFAIL; 218 break; 219 } 220 221 data = (u_char *)imsg.data; 222 while (dlen >= sizeof(struct sockaddr_storage)) { 223 if ((h = calloc(1, sizeof(*h))) == NULL) 224 fatal(NULL); 225 memcpy(&h->ss, data, sizeof(h->ss)); 226 TAILQ_INSERT_HEAD(&idm->idm_addr, h, next); 227 228 data += sizeof(h->ss); 229 dlen -= sizeof(h->ss); 230 } 231 if (dlen != 0) 232 fatalx("IMSG_HOST_DNS: dlen != 0"); 233 234 client_addr_init(idm); 235 236 break; 237 default: 238 break; 239 } 240 imsg_free(&imsg); 241 } 242 243 TAILQ_FOREACH(idm, &env->sc_idms, idm_entry) { 244 if (client_try_idm(env, idm) == -1) 245 idm->idm_state = STATE_LDAP_FAIL; 246 247 if (idm->idm_state < STATE_LDAP_DONE) 248 wait_cnt++; 249 } 250 if (wait_cnt == 0) 251 imsg_compose_event(env->sc_iev, IMSG_END_UPDATE, 0, 0, -1, 252 NULL, 0); 253 254 done: 255 if (!shut) 256 imsg_event_add(iev); 257 else { 258 /* this pipe is dead, so remove the event handler */ 259 event_del(&iev->ev); 260 event_loopexit(NULL); 261 } 262 } 263 264 void 265 client_dispatch_parent(int fd, short events, void *p) 266 { 267 int n; 268 int shut = 0; 269 struct imsg imsg; 270 struct env *env = p; 271 struct imsgev *iev = env->sc_iev; 272 struct imsgbuf *ibuf = &iev->ibuf; 273 274 if ((events & (EV_READ | EV_WRITE)) == 0) 275 fatalx("unknown event"); 276 277 if (events & EV_READ) { 278 if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) 279 fatal("imsg_read error"); 280 if (n == 0) 281 shut = 1; 282 } 283 if (events & EV_WRITE) { 284 if ((n = msgbuf_write(&ibuf->w)) == -1 && errno != EAGAIN) 285 fatal("msgbuf_write"); 286 if (n == 0) 287 shut = 1; 288 goto done; 289 } 290 291 for (;;) { 292 if ((n = imsg_get(ibuf, &imsg)) == -1) 293 fatal("client_dispatch_parent: imsg_get error"); 294 if (n == 0) 295 break; 296 297 switch (imsg.hdr.type) { 298 case IMSG_CONF_START: { 299 struct env params; 300 301 if (env->sc_flags & F_CONFIGURING) { 302 log_warnx("configuration already in progress"); 303 break; 304 } 305 memcpy(¶ms, imsg.data, sizeof(params)); 306 log_debug("configuration starting"); 307 env->sc_flags |= F_CONFIGURING; 308 purge_config(env); 309 memcpy(&env->sc_conf_tv, ¶ms.sc_conf_tv, 310 sizeof(env->sc_conf_tv)); 311 env->sc_flags |= params.sc_flags; 312 break; 313 } 314 case IMSG_CONF_IDM: { 315 struct idm *idm; 316 317 if (!(env->sc_flags & F_CONFIGURING)) 318 break; 319 if ((idm = calloc(1, sizeof(*idm))) == NULL) 320 fatal(NULL); 321 memcpy(idm, imsg.data, sizeof(*idm)); 322 idm->idm_env = env; 323 TAILQ_INSERT_TAIL(&env->sc_idms, idm, idm_entry); 324 break; 325 } 326 case IMSG_CONF_END: 327 env->sc_flags &= ~F_CONFIGURING; 328 log_debug("applying configuration"); 329 client_configure(env); 330 break; 331 default: 332 log_debug("client_dispatch_parent: unexpect imsg %d", 333 imsg.hdr.type); 334 335 break; 336 } 337 imsg_free(&imsg); 338 } 339 340 done: 341 if (!shut) 342 imsg_event_add(iev); 343 else { 344 /* this pipe is dead, so remove the event handler */ 345 event_del(&iev->ev); 346 event_loopexit(NULL); 347 } 348 } 349 350 void 351 client_shutdown(void) 352 { 353 log_info("ldap client exiting"); 354 _exit(0); 355 } 356 357 pid_t 358 ldapclient(int pipe_main2client[2]) 359 { 360 pid_t pid; 361 int pipe_dns[2]; 362 struct passwd *pw; 363 struct event ev_sigint; 364 struct event ev_sigterm; 365 struct env env; 366 367 switch (pid = fork()) { 368 case -1: 369 fatal("cannot fork"); 370 break; 371 case 0: 372 break; 373 default: 374 return (pid); 375 } 376 377 memset(&env, 0, sizeof(env)); 378 TAILQ_INIT(&env.sc_idms); 379 380 if ((pw = getpwnam(YPLDAP_USER)) == NULL) 381 fatal("getpwnam"); 382 383 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_dns) == -1) 384 fatal("socketpair"); 385 ypldap_dns(pipe_dns, pw); 386 close(pipe_dns[1]); 387 388 #ifndef DEBUG 389 if (chroot(pw->pw_dir) == -1) 390 fatal("chroot"); 391 if (chdir("/") == -1) 392 fatal("chdir"); 393 #else 394 #warning disabling chrooting in DEBUG mode 395 #endif 396 setproctitle("ldap client"); 397 ypldap_process = PROC_CLIENT; 398 log_procname = log_procnames[ypldap_process]; 399 400 #ifndef DEBUG 401 if (setgroups(1, &pw->pw_gid) || 402 setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) || 403 setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid)) 404 fatal("cannot drop privileges"); 405 #else 406 #warning disabling privilege revocation in DEBUG mode 407 #endif 408 409 if (pledge("stdio inet", NULL) == -1) 410 fatal("pledge"); 411 412 event_init(); 413 signal(SIGPIPE, SIG_IGN); 414 signal_set(&ev_sigint, SIGINT, client_sig_handler, NULL); 415 signal_set(&ev_sigterm, SIGTERM, client_sig_handler, NULL); 416 signal_add(&ev_sigint, NULL); 417 signal_add(&ev_sigterm, NULL); 418 419 close(pipe_main2client[0]); 420 if ((env.sc_iev = calloc(1, sizeof(*env.sc_iev))) == NULL) 421 fatal(NULL); 422 if ((env.sc_iev_dns = calloc(1, sizeof(*env.sc_iev_dns))) == NULL) 423 fatal(NULL); 424 425 env.sc_iev->events = EV_READ; 426 env.sc_iev->data = &env; 427 imsg_init(&env.sc_iev->ibuf, pipe_main2client[1]); 428 env.sc_iev->handler = client_dispatch_parent; 429 event_set(&env.sc_iev->ev, env.sc_iev->ibuf.fd, env.sc_iev->events, 430 env.sc_iev->handler, &env); 431 event_add(&env.sc_iev->ev, NULL); 432 433 env.sc_iev_dns->events = EV_READ; 434 env.sc_iev_dns->data = &env; 435 imsg_init(&env.sc_iev_dns->ibuf, pipe_dns[0]); 436 env.sc_iev_dns->handler = client_dispatch_dns; 437 event_set(&env.sc_iev_dns->ev, env.sc_iev_dns->ibuf.fd, 438 env.sc_iev_dns->events, env.sc_iev_dns->handler, &env); 439 event_add(&env.sc_iev_dns->ev, NULL); 440 441 event_dispatch(); 442 client_shutdown(); 443 444 return (0); 445 446 } 447 448 int 449 client_build_req(struct idm *idm, struct idm_req *ir, struct aldap_message *m, 450 int min_attr, int max_attr) 451 { 452 struct aldap_stringset *ldap_attrs; 453 int i; 454 size_t k; 455 456 memset(ir, 0, sizeof(*ir)); 457 for (i = min_attr; i < max_attr; i++) { 458 if (idm->idm_flags & F_FIXED_ATTR(i)) { 459 if (strlcat(ir->ir_line, idm->idm_attrs[i], 460 sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) 461 /* 462 * entry yields a line > 1024, trash it. 463 */ 464 return (-1); 465 466 if (i == ATTR_UID) { 467 ir->ir_key.ik_uid = strtonum( 468 idm->idm_attrs[i], 0, 469 UID_MAX, NULL); 470 } else if (i == ATTR_GR_GID) { 471 ir->ir_key.ik_gid = strtonum( 472 idm->idm_attrs[i], 0, 473 GID_MAX, NULL); 474 } 475 } else if (idm->idm_list & F_LIST(i)) { 476 aldap_match_attr(m, idm->idm_attrs[i], &ldap_attrs); 477 for (k = 0; k >= 0 && ldap_attrs && k < ldap_attrs->len; k++) { 478 /* XXX: Fail when attributes have illegal characters e.g. ',' */ 479 if (strlcat(ir->ir_line, 480 ldap_attrs->str[k].ostr_val, 481 sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) 482 continue; 483 if (k + 1 < ldap_attrs->len) 484 if (strlcat(ir->ir_line, ",", 485 sizeof(ir->ir_line)) 486 >= sizeof(ir->ir_line)) { 487 aldap_free_attr(ldap_attrs); 488 return (-1); 489 } 490 } 491 aldap_free_attr(ldap_attrs); 492 } else { 493 if (aldap_match_attr(m, idm->idm_attrs[i], &ldap_attrs) == -1) 494 return (-1); 495 if (strlcat(ir->ir_line, ldap_attrs->str[0].ostr_val, 496 sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) { 497 aldap_free_attr(ldap_attrs); 498 return (-1); 499 } 500 if (i == ATTR_UID) { 501 ir->ir_key.ik_uid = strtonum( 502 ldap_attrs->str[0].ostr_val, 0, UID_MAX, 503 NULL); 504 } else if (i == ATTR_GR_GID) { 505 ir->ir_key.ik_uid = strtonum( 506 ldap_attrs->str[0].ostr_val, 0, GID_MAX, 507 NULL); 508 } 509 aldap_free_attr(ldap_attrs); 510 } 511 512 if (i + 1 != max_attr) 513 if (strlcat(ir->ir_line, ":", 514 sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) 515 return (-1); 516 } 517 518 return (0); 519 } 520 521 int 522 client_search_idm(struct env *env, struct idm *idm, struct aldap *al, 523 char **attrs, char *filter, int min_attr, int max_attr, 524 enum imsg_type type) 525 { 526 struct idm_req ir; 527 struct aldap_message *m; 528 struct aldap_page_control *pg = NULL; 529 const char *errstr; 530 char *dn; 531 532 dn = idm->idm_basedn; 533 if (type == IMSG_GRP_ENTRY && idm->idm_groupdn[0] != '\0') 534 dn = idm->idm_groupdn; 535 536 do { 537 if (aldap_search(al, dn, LDAP_SCOPE_SUBTREE, 538 filter, attrs, 0, 0, 0, pg) == -1) { 539 aldap_get_errno(al, &errstr); 540 log_debug("%s", errstr); 541 return (-1); 542 } 543 544 if (pg != NULL) { 545 aldap_freepage(pg); 546 pg = NULL; 547 } 548 549 while ((m = aldap_parse(al)) != NULL) { 550 if (al->msgid != m->msgid) { 551 goto fail; 552 } 553 554 if (m->message_type == LDAP_RES_SEARCH_RESULT) { 555 if (m->page != NULL && m->page->cookie_len != 0) 556 pg = m->page; 557 else 558 pg = NULL; 559 560 aldap_freemsg(m); 561 break; 562 } 563 564 if (m->message_type != LDAP_RES_SEARCH_ENTRY) { 565 goto fail; 566 } 567 568 if (client_build_req(idm, &ir, m, min_attr, max_attr) == 0) 569 imsg_compose_event(env->sc_iev, type, 0, 0, -1, 570 &ir, sizeof(ir)); 571 572 aldap_freemsg(m); 573 } 574 } while (pg != NULL); 575 576 return (0); 577 578 fail: 579 aldap_freemsg(m); 580 if (pg != NULL) { 581 aldap_freepage(pg); 582 } 583 584 return (-1); 585 } 586 587 int 588 client_try_idm(struct env *env, struct idm *idm) 589 { 590 const char *where; 591 char *attrs[ATTR_MAX+1]; 592 int i, j; 593 struct aldap_message *m; 594 struct aldap *al; 595 596 where = "connect"; 597 if ((al = client_aldap_open(&idm->idm_addr)) == NULL) 598 return (-1); 599 600 if (idm->idm_flags & F_STARTTLS) { 601 log_debug("requesting starttls"); 602 where = "starttls"; 603 if (aldap_req_starttls(al) == -1) 604 goto bad; 605 606 where = "parsing"; 607 if ((m = aldap_parse(al)) == NULL) 608 goto bad; 609 where = "verifying msgid"; 610 if (al->msgid != m->msgid) { 611 aldap_freemsg(m); 612 goto bad; 613 } 614 where = "starttls result"; 615 if (aldap_get_resultcode(m) != LDAP_SUCCESS) { 616 aldap_freemsg(m); 617 goto bad; 618 } 619 aldap_freemsg(m); 620 } 621 622 if (idm->idm_flags & (F_STARTTLS | F_SSL)) { 623 log_debug("starting tls"); 624 where = "enabling tls"; 625 if (aldap_tls(al, idm->idm_tls_config, idm->idm_name) < 0) { 626 const char *err; 627 aldap_get_errno(al, &err); 628 log_warnx("TLS handshake with %s failed: %s", 629 idm->idm_name, err); 630 goto bad; 631 } 632 } 633 634 if (idm->idm_flags & F_NEEDAUTH) { 635 int rc; 636 637 where = "binding"; 638 if (aldap_bind(al, idm->idm_binddn, idm->idm_bindcred) == -1) 639 goto bad; 640 641 where = "parsing"; 642 if ((m = aldap_parse(al)) == NULL) 643 goto bad; 644 where = "verifying msgid"; 645 if (al->msgid != m->msgid) { 646 aldap_freemsg(m); 647 goto bad; 648 } 649 where = "bind response"; 650 rc = aldap_get_resultcode(m); 651 if (rc != LDAP_SUCCESS) { 652 log_warnx("LDAP bind with %s failed: result code %d", 653 idm->idm_name, rc); 654 aldap_freemsg(m); 655 goto bad; 656 } 657 aldap_freemsg(m); 658 } 659 660 memset(attrs, 0, sizeof(attrs)); 661 for (i = 0, j = 0; i < ATTR_MAX; i++) { 662 if (idm->idm_flags & F_FIXED_ATTR(i)) 663 continue; 664 attrs[j++] = idm->idm_attrs[i]; 665 } 666 attrs[j] = NULL; 667 668 /* 669 * build password line. 670 */ 671 where = "search"; 672 log_debug("searching password entries"); 673 if (client_search_idm(env, idm, al, attrs, 674 idm->idm_filters[FILTER_USER], 0, ATTR_MAX, IMSG_PW_ENTRY) == -1) 675 goto bad; 676 677 memset(attrs, 0, sizeof(attrs)); 678 for (i = ATTR_GR_MIN, j = 0; i < ATTR_GR_MAX; i++) { 679 if (idm->idm_flags & F_FIXED_ATTR(i)) 680 continue; 681 attrs[j++] = idm->idm_attrs[i]; 682 } 683 attrs[j] = NULL; 684 685 /* 686 * build group line. 687 */ 688 where = "search"; 689 log_debug("searching group entries"); 690 if (client_search_idm(env, idm, al, attrs, 691 idm->idm_filters[FILTER_GROUP], ATTR_GR_MIN, ATTR_GR_MAX, 692 IMSG_GRP_ENTRY) == -1) 693 goto bad; 694 695 aldap_close(al); 696 697 idm->idm_state = STATE_LDAP_DONE; 698 699 return (0); 700 bad: 701 aldap_close(al); 702 log_debug("directory %s errored out in %s", idm->idm_name, where); 703 return (-1); 704 } 705 706 void 707 client_periodic_update(int fd, short event, void *p) 708 { 709 struct env *env = p; 710 711 struct idm *idm; 712 int fail_cnt = 0; 713 714 /* If LDAP isn't finished, notify the master process to trash the 715 * update. */ 716 TAILQ_FOREACH(idm, &env->sc_idms, idm_entry) { 717 if (idm->idm_state < STATE_LDAP_DONE) 718 fail_cnt++; 719 720 idm->idm_state = STATE_NONE; 721 722 client_addr_free(idm); 723 } 724 if (fail_cnt > 0) { 725 log_debug("trash the update"); 726 imsg_compose_event(env->sc_iev, IMSG_TRASH_UPDATE, 0, 0, -1, 727 NULL, 0); 728 } 729 730 client_configure(env); 731 } 732 733 void 734 client_configure(struct env *env) 735 { 736 struct timeval tv; 737 struct idm *idm; 738 u_int16_t dlen; 739 740 log_debug("connecting to directories"); 741 742 imsg_compose_event(env->sc_iev, IMSG_START_UPDATE, 0, 0, -1, NULL, 0); 743 744 /* Start the DNS lookups */ 745 TAILQ_FOREACH(idm, &env->sc_idms, idm_entry) { 746 dlen = strlen(idm->idm_name) + 1; 747 imsg_compose_event(env->sc_iev_dns, IMSG_HOST_DNS, idm->idm_id, 748 0, -1, idm->idm_name, dlen); 749 } 750 751 tv.tv_sec = env->sc_conf_tv.tv_sec; 752 tv.tv_usec = env->sc_conf_tv.tv_usec; 753 evtimer_set(&env->sc_conf_ev, client_periodic_update, env); 754 evtimer_add(&env->sc_conf_ev, &tv); 755 } 756