1 /* $OpenBSD: ldapclient.c,v 1.55 2024/11/21 13:38:15 claudio 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_configure(struct env *); 50 void client_periodic_update(int, short, void *); 51 int client_build_req(struct idm *, struct idm_req *, struct aldap_message *, 52 int, int); 53 int client_search_idm(struct env *, struct idm *, struct aldap *, 54 char **, char *, int, int, enum imsg_type); 55 int client_try_idm(struct env *, struct idm *, struct ypldap_addr *); 56 void client_addr_init(struct idm *); 57 int client_addr_free(struct idm *); 58 59 void 60 client_addr_init(struct idm *idm) 61 { 62 struct sockaddr_in *sa_in; 63 struct sockaddr_in6 *sa_in6; 64 struct ypldap_addr *h; 65 int defport; 66 67 if (idm->idm_port != 0) 68 defport = idm->idm_port; 69 else if (idm->idm_flags & F_SSL) 70 defport = LDAPS_PORT; 71 else 72 defport = LDAP_PORT; 73 74 TAILQ_FOREACH(h, &idm->idm_addr, next) { 75 switch (h->ss.ss_family) { 76 case AF_INET: 77 sa_in = (struct sockaddr_in *)&h->ss; 78 if (ntohs(sa_in->sin_port) == 0) 79 sa_in->sin_port = htons(defport); 80 idm->idm_state = STATE_DNS_DONE; 81 break; 82 case AF_INET6: 83 sa_in6 = (struct sockaddr_in6 *)&h->ss; 84 if (ntohs(sa_in6->sin6_port) == 0) 85 sa_in6->sin6_port = htons(defport); 86 idm->idm_state = STATE_DNS_DONE; 87 break; 88 default: 89 fatalx("king bula sez: wrong AF in client_addr_init"); 90 /* not reached */ 91 } 92 } 93 } 94 95 int 96 client_addr_free(struct idm *idm) 97 { 98 struct ypldap_addr *h; 99 100 while (!TAILQ_EMPTY(&idm->idm_addr)) { 101 h = TAILQ_FIRST(&idm->idm_addr); 102 TAILQ_REMOVE(&idm->idm_addr, h, next); 103 free(h); 104 } 105 106 return (0); 107 } 108 109 void 110 client_sig_handler(int sig, short event, void *p) 111 { 112 switch (sig) { 113 case SIGINT: 114 case SIGTERM: 115 client_shutdown(); 116 break; 117 case SIGHUP: 118 /* ingore */ 119 break; 120 default: 121 fatalx("unexpected signal"); 122 } 123 } 124 125 void 126 client_dispatch_dns(int fd, short events, void *p) 127 { 128 struct imsg imsg; 129 u_int16_t dlen; 130 u_char *data; 131 struct ypldap_addr *h; 132 int n, wait_cnt = 0; 133 struct idm *idm; 134 int shut = 0; 135 136 struct env *env = p; 137 struct imsgev *iev = env->sc_iev_dns; 138 struct imsgbuf *ibuf = &iev->ibuf; 139 140 if ((events & (EV_READ | EV_WRITE)) == 0) 141 fatalx("unknown event"); 142 143 if (events & EV_READ) { 144 if ((n = imsgbuf_read(ibuf)) == -1) 145 fatal("imsgbuf_read error"); 146 if (n == 0) 147 shut = 1; 148 } 149 if (events & EV_WRITE) { 150 if (imsgbuf_write(ibuf) == -1) { 151 if (errno == EPIPE) /* connection closed */ 152 shut = 1; 153 else 154 fatal("imsgbuf_write"); 155 } 156 } 157 158 for (;;) { 159 if ((n = imsg_get(ibuf, &imsg)) == -1) 160 fatal("client_dispatch_dns: imsg_get error"); 161 if (n == 0) 162 break; 163 164 switch (imsg.hdr.type) { 165 case IMSG_HOST_DNS: 166 TAILQ_FOREACH(idm, &env->sc_idms, idm_entry) 167 if (idm->idm_id == imsg.hdr.peerid) 168 break; 169 if (idm == NULL) { 170 log_warnx("IMSG_HOST_DNS with invalid peerID"); 171 break; 172 } 173 if (!TAILQ_EMPTY(&idm->idm_addr)) { 174 log_warnx("IMSG_HOST_DNS but addrs set!"); 175 break; 176 } 177 178 dlen = imsg.hdr.len - IMSG_HEADER_SIZE; 179 if (dlen == 0) { /* no data -> temp error */ 180 idm->idm_state = STATE_DNS_TEMPFAIL; 181 break; 182 } 183 184 data = (u_char *)imsg.data; 185 while (dlen >= sizeof(struct sockaddr_storage)) { 186 if ((h = calloc(1, sizeof(*h))) == NULL) 187 fatal(NULL); 188 memcpy(&h->ss, data, sizeof(h->ss)); 189 TAILQ_INSERT_HEAD(&idm->idm_addr, h, next); 190 191 data += sizeof(h->ss); 192 dlen -= sizeof(h->ss); 193 } 194 if (dlen != 0) 195 fatalx("IMSG_HOST_DNS: dlen != 0"); 196 197 client_addr_init(idm); 198 199 break; 200 default: 201 break; 202 } 203 imsg_free(&imsg); 204 } 205 206 TAILQ_FOREACH(idm, &env->sc_idms, idm_entry) { 207 TAILQ_FOREACH(h, &idm->idm_addr, next) { 208 if (client_try_idm(env, idm, h) == -1) 209 idm->idm_state = STATE_LDAP_FAIL; 210 else 211 break; 212 } 213 214 if (idm->idm_state < STATE_LDAP_DONE) 215 wait_cnt++; 216 } 217 if (wait_cnt == 0) 218 imsg_compose_event(env->sc_iev, IMSG_END_UPDATE, 0, 0, -1, 219 NULL, 0); 220 221 if (!shut) 222 imsg_event_add(iev); 223 else { 224 /* this pipe is dead, so remove the event handler */ 225 event_del(&iev->ev); 226 event_loopexit(NULL); 227 } 228 } 229 230 void 231 client_dispatch_parent(int fd, short events, void *p) 232 { 233 int n; 234 int shut = 0; 235 struct imsg imsg; 236 struct env *env = p; 237 struct imsgev *iev = env->sc_iev; 238 struct imsgbuf *ibuf = &iev->ibuf; 239 240 if ((events & (EV_READ | EV_WRITE)) == 0) 241 fatalx("unknown event"); 242 243 if (events & EV_READ) { 244 if ((n = imsgbuf_read(ibuf)) == -1) 245 fatal("imsgbuf_read error"); 246 if (n == 0) 247 shut = 1; 248 } 249 if (events & EV_WRITE) { 250 if (imsgbuf_write(ibuf) == -1) { 251 if (errno == EPIPE) /* connection closed */ 252 shut = 1; 253 else 254 fatal("imsgbuf_write"); 255 } 256 } 257 258 for (;;) { 259 if ((n = imsg_get(ibuf, &imsg)) == -1) 260 fatal("client_dispatch_parent: imsg_get error"); 261 if (n == 0) 262 break; 263 264 switch (imsg.hdr.type) { 265 case IMSG_CONF_START: { 266 struct env params; 267 268 if (env->sc_flags & F_CONFIGURING) { 269 log_warnx("configuration already in progress"); 270 break; 271 } 272 memcpy(¶ms, imsg.data, sizeof(params)); 273 log_debug("configuration starting"); 274 env->sc_flags |= F_CONFIGURING; 275 purge_config(env); 276 memcpy(&env->sc_conf_tv, ¶ms.sc_conf_tv, 277 sizeof(env->sc_conf_tv)); 278 env->sc_flags |= params.sc_flags; 279 break; 280 } 281 case IMSG_CONF_IDM: { 282 struct idm *idm; 283 284 if (!(env->sc_flags & F_CONFIGURING)) 285 break; 286 if ((idm = calloc(1, sizeof(*idm))) == NULL) 287 fatal(NULL); 288 memcpy(idm, imsg.data, sizeof(*idm)); 289 idm->idm_env = env; 290 TAILQ_INSERT_TAIL(&env->sc_idms, idm, idm_entry); 291 break; 292 } 293 case IMSG_CONF_END: 294 env->sc_flags &= ~F_CONFIGURING; 295 log_debug("applying configuration"); 296 client_configure(env); 297 break; 298 default: 299 log_debug("client_dispatch_parent: unexpect imsg %d", 300 imsg.hdr.type); 301 302 break; 303 } 304 imsg_free(&imsg); 305 } 306 307 if (!shut) 308 imsg_event_add(iev); 309 else { 310 /* this pipe is dead, so remove the event handler */ 311 event_del(&iev->ev); 312 event_loopexit(NULL); 313 } 314 } 315 316 void 317 client_shutdown(void) 318 { 319 log_info("ldap client exiting"); 320 _exit(0); 321 } 322 323 pid_t 324 ldapclient(int pipe_main2client[2]) 325 { 326 pid_t pid; 327 int pipe_dns[2]; 328 struct passwd *pw; 329 struct event ev_sigint; 330 struct event ev_sigterm; 331 struct event ev_sighup; 332 struct env env; 333 334 switch (pid = fork()) { 335 case -1: 336 fatal("cannot fork"); 337 break; 338 case 0: 339 break; 340 default: 341 return (pid); 342 } 343 344 memset(&env, 0, sizeof(env)); 345 TAILQ_INIT(&env.sc_idms); 346 347 if ((pw = getpwnam(YPLDAP_USER)) == NULL) 348 fatal("getpwnam"); 349 350 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_dns) == -1) 351 fatal("socketpair"); 352 ypldap_dns(pipe_dns, pw); 353 close(pipe_dns[1]); 354 355 #ifndef DEBUG 356 if (chroot(pw->pw_dir) == -1) 357 fatal("chroot"); 358 if (chdir("/") == -1) 359 fatal("chdir"); 360 #else 361 #warning disabling chrooting in DEBUG mode 362 #endif 363 setproctitle("ldap client"); 364 ypldap_process = PROC_CLIENT; 365 log_procname = log_procnames[ypldap_process]; 366 367 #ifndef DEBUG 368 if (setgroups(1, &pw->pw_gid) || 369 setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) || 370 setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid)) 371 fatal("cannot drop privileges"); 372 #else 373 #warning disabling privilege revocation in DEBUG mode 374 #endif 375 376 if (pledge("stdio inet", NULL) == -1) 377 fatal("pledge"); 378 379 event_init(); 380 signal(SIGPIPE, SIG_IGN); 381 signal_set(&ev_sigint, SIGINT, client_sig_handler, NULL); 382 signal_set(&ev_sigterm, SIGTERM, client_sig_handler, NULL); 383 signal_set(&ev_sighup, SIGHUP, client_sig_handler, NULL); 384 signal_add(&ev_sigint, NULL); 385 signal_add(&ev_sigterm, NULL); 386 signal_add(&ev_sighup, NULL); 387 388 close(pipe_main2client[0]); 389 if ((env.sc_iev = calloc(1, sizeof(*env.sc_iev))) == NULL) 390 fatal(NULL); 391 if ((env.sc_iev_dns = calloc(1, sizeof(*env.sc_iev_dns))) == NULL) 392 fatal(NULL); 393 394 env.sc_iev->events = EV_READ; 395 env.sc_iev->data = &env; 396 if (imsgbuf_init(&env.sc_iev->ibuf, pipe_main2client[1]) == -1) 397 fatal(NULL); 398 env.sc_iev->handler = client_dispatch_parent; 399 event_set(&env.sc_iev->ev, env.sc_iev->ibuf.fd, env.sc_iev->events, 400 env.sc_iev->handler, &env); 401 event_add(&env.sc_iev->ev, NULL); 402 403 env.sc_iev_dns->events = EV_READ; 404 env.sc_iev_dns->data = &env; 405 if (imsgbuf_init(&env.sc_iev_dns->ibuf, pipe_dns[0]) == -1) 406 fatal(NULL); 407 env.sc_iev_dns->handler = client_dispatch_dns; 408 event_set(&env.sc_iev_dns->ev, env.sc_iev_dns->ibuf.fd, 409 env.sc_iev_dns->events, env.sc_iev_dns->handler, &env); 410 event_add(&env.sc_iev_dns->ev, NULL); 411 412 event_dispatch(); 413 client_shutdown(); 414 415 return (0); 416 417 } 418 419 int 420 client_build_req(struct idm *idm, struct idm_req *ir, struct aldap_message *m, 421 int min_attr, int max_attr) 422 { 423 struct aldap_stringset *ldap_attrs; 424 int i; 425 size_t k; 426 427 memset(ir, 0, sizeof(*ir)); 428 for (i = min_attr; i < max_attr; i++) { 429 if (idm->idm_flags & F_FIXED_ATTR(i)) { 430 if (strlcat(ir->ir_line, idm->idm_attrs[i], 431 sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) 432 /* 433 * entry yields a line > 1024, trash it. 434 */ 435 return (-1); 436 437 if (i == ATTR_UID) { 438 ir->ir_key.ik_uid = strtonum( 439 idm->idm_attrs[i], 0, 440 UID_MAX, NULL); 441 } else if (i == ATTR_GR_GID) { 442 ir->ir_key.ik_gid = strtonum( 443 idm->idm_attrs[i], 0, 444 GID_MAX, NULL); 445 } 446 } else if (idm->idm_list & F_LIST(i)) { 447 aldap_match_attr(m, idm->idm_attrs[i], &ldap_attrs); 448 for (k = 0; k >= 0 && ldap_attrs && k < ldap_attrs->len; k++) { 449 /* XXX: Fail when attributes have illegal characters e.g. ',' */ 450 if (strlcat(ir->ir_line, 451 ldap_attrs->str[k].ostr_val, 452 sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) 453 continue; 454 if (k + 1 < ldap_attrs->len) 455 if (strlcat(ir->ir_line, ",", 456 sizeof(ir->ir_line)) 457 >= sizeof(ir->ir_line)) { 458 aldap_free_attr(ldap_attrs); 459 return (-1); 460 } 461 } 462 aldap_free_attr(ldap_attrs); 463 } else { 464 if (aldap_match_attr(m, idm->idm_attrs[i], &ldap_attrs) == -1) 465 return (-1); 466 if (strlcat(ir->ir_line, ldap_attrs->str[0].ostr_val, 467 sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) { 468 aldap_free_attr(ldap_attrs); 469 return (-1); 470 } 471 if (i == ATTR_UID) { 472 ir->ir_key.ik_uid = strtonum( 473 ldap_attrs->str[0].ostr_val, 0, UID_MAX, 474 NULL); 475 } else if (i == ATTR_GR_GID) { 476 ir->ir_key.ik_uid = strtonum( 477 ldap_attrs->str[0].ostr_val, 0, GID_MAX, 478 NULL); 479 } 480 aldap_free_attr(ldap_attrs); 481 } 482 483 if (i + 1 != max_attr) 484 if (strlcat(ir->ir_line, ":", 485 sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) 486 return (-1); 487 } 488 489 return (0); 490 } 491 492 int 493 client_search_idm(struct env *env, struct idm *idm, struct aldap *al, 494 char **attrs, char *filter, int min_attr, int max_attr, 495 enum imsg_type type) 496 { 497 struct idm_req ir; 498 struct aldap_message *m; 499 struct aldap_page_control *pg = NULL; 500 const char *errstr; 501 char *dn; 502 503 dn = idm->idm_basedn; 504 if (type == IMSG_GRP_ENTRY && idm->idm_groupdn[0] != '\0') 505 dn = idm->idm_groupdn; 506 507 do { 508 if (aldap_search(al, dn, LDAP_SCOPE_SUBTREE, 509 filter, attrs, 0, 0, 0, pg) == -1) { 510 aldap_get_errno(al, &errstr); 511 log_debug("%s", errstr); 512 return (-1); 513 } 514 515 if (pg != NULL) { 516 aldap_freepage(pg); 517 pg = NULL; 518 } 519 520 while ((m = aldap_parse(al)) != NULL) { 521 if (al->msgid != m->msgid) { 522 goto fail; 523 } 524 525 if (m->message_type == LDAP_RES_SEARCH_RESULT) { 526 if (m->page != NULL && m->page->cookie_len != 0) 527 pg = m->page; 528 else 529 pg = NULL; 530 531 aldap_freemsg(m); 532 break; 533 } 534 535 if (m->message_type != LDAP_RES_SEARCH_ENTRY) { 536 goto fail; 537 } 538 539 if (client_build_req(idm, &ir, m, min_attr, max_attr) == 0) 540 imsg_compose_event(env->sc_iev, type, 0, 0, -1, 541 &ir, sizeof(ir.ir_key) + 542 strlen(ir.ir_line) + 1); 543 544 aldap_freemsg(m); 545 } 546 } while (pg != NULL); 547 548 return (0); 549 550 fail: 551 aldap_freemsg(m); 552 if (pg != NULL) { 553 aldap_freepage(pg); 554 } 555 556 return (-1); 557 } 558 559 int 560 client_try_idm(struct env *env, struct idm *idm, struct ypldap_addr *addr) 561 { 562 const char *where; 563 char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV]; 564 char *attrs[ATTR_MAX+1]; 565 int fd = -1; 566 int i, j; 567 struct sockaddr *sa = (struct sockaddr *)&addr->ss; 568 struct aldap_message *m; 569 struct aldap *al; 570 571 if (getnameinfo(sa, SA_LEN(sa), hbuf, sizeof(hbuf), sbuf, 572 sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV)) 573 errx(1, "could not get numeric hostname"); 574 575 where = "connect"; 576 if ((fd = socket(sa->sa_family, SOCK_STREAM, 0)) == -1) 577 return (-1); 578 579 if (connect(fd, sa, SA_LEN(sa)) != 0) { 580 log_warn("connect to %s port %s failed", hbuf, sbuf); 581 close(fd); 582 return (-1); 583 } 584 585 al = aldap_init(fd); 586 if (al == NULL) { 587 close(fd); 588 return (-1); 589 } 590 591 if (idm->idm_flags & F_STARTTLS) { 592 log_debug("requesting starttls"); 593 where = "starttls"; 594 if (aldap_req_starttls(al) == -1) 595 goto bad; 596 597 where = "parsing"; 598 if ((m = aldap_parse(al)) == NULL) 599 goto bad; 600 where = "verifying msgid"; 601 if (al->msgid != m->msgid) { 602 aldap_freemsg(m); 603 goto bad; 604 } 605 where = "starttls result"; 606 if (aldap_get_resultcode(m) != LDAP_SUCCESS) { 607 aldap_freemsg(m); 608 goto bad; 609 } 610 aldap_freemsg(m); 611 } 612 613 if (idm->idm_flags & (F_STARTTLS | F_SSL)) { 614 log_debug("starting tls"); 615 where = "enabling tls"; 616 if (aldap_tls(al, idm->idm_tls_config, idm->idm_name) < 0) { 617 const char *err; 618 aldap_get_errno(al, &err); 619 log_warnx("TLS handshake with %s(%s) failed: %s", 620 idm->idm_name, hbuf, err); 621 goto bad; 622 } 623 } 624 625 if (idm->idm_flags & F_NEEDAUTH) { 626 int rc; 627 628 where = "binding"; 629 if (idm->idm_bindext != 0) 630 rc = aldap_bind_sasl_external(al, idm->idm_bindextid); 631 else 632 rc = aldap_bind(al, idm->idm_binddn, idm->idm_bindcred); 633 if (rc == -1) 634 goto bad; 635 636 where = "parsing"; 637 if ((m = aldap_parse(al)) == NULL) 638 goto bad; 639 where = "verifying msgid"; 640 if (al->msgid != m->msgid) { 641 aldap_freemsg(m); 642 goto bad; 643 } 644 where = "bind response"; 645 rc = aldap_get_resultcode(m); 646 if (rc != LDAP_SUCCESS) { 647 log_warnx("LDAP bind with %s(%s) failed: result code" 648 " %d", idm->idm_name, hbuf, rc); 649 aldap_freemsg(m); 650 goto bad; 651 } 652 aldap_freemsg(m); 653 } 654 655 memset(attrs, 0, sizeof(attrs)); 656 for (i = 0, j = 0; i < ATTR_MAX; i++) { 657 if (idm->idm_flags & F_FIXED_ATTR(i)) 658 continue; 659 attrs[j++] = idm->idm_attrs[i]; 660 } 661 attrs[j] = NULL; 662 663 /* 664 * build password line. 665 */ 666 where = "search"; 667 log_debug("searching password entries"); 668 if (client_search_idm(env, idm, al, attrs, 669 idm->idm_filters[FILTER_USER], 0, ATTR_MAX, IMSG_PW_ENTRY) == -1) 670 goto bad; 671 672 memset(attrs, 0, sizeof(attrs)); 673 for (i = ATTR_GR_MIN, j = 0; i < ATTR_GR_MAX; i++) { 674 if (idm->idm_flags & F_FIXED_ATTR(i)) 675 continue; 676 attrs[j++] = idm->idm_attrs[i]; 677 } 678 attrs[j] = NULL; 679 680 /* 681 * build group line. 682 */ 683 where = "search"; 684 log_debug("searching group entries"); 685 if (client_search_idm(env, idm, al, attrs, 686 idm->idm_filters[FILTER_GROUP], ATTR_GR_MIN, ATTR_GR_MAX, 687 IMSG_GRP_ENTRY) == -1) 688 goto bad; 689 690 aldap_close(al); 691 692 idm->idm_state = STATE_LDAP_DONE; 693 694 return (0); 695 bad: 696 aldap_close(al); 697 log_debug("directory %s(%s) errored out in %s", idm->idm_name, hbuf, 698 where); 699 return (-1); 700 } 701 702 void 703 client_periodic_update(int fd, short event, void *p) 704 { 705 struct env *env = p; 706 707 struct idm *idm; 708 int fail_cnt = 0; 709 710 /* If LDAP isn't finished, notify the master process to trash the 711 * update. */ 712 TAILQ_FOREACH(idm, &env->sc_idms, idm_entry) { 713 if (idm->idm_state < STATE_LDAP_DONE) 714 fail_cnt++; 715 716 idm->idm_state = STATE_NONE; 717 718 client_addr_free(idm); 719 } 720 if (fail_cnt > 0) { 721 log_debug("trash the update"); 722 imsg_compose_event(env->sc_iev, IMSG_TRASH_UPDATE, 0, 0, -1, 723 NULL, 0); 724 } 725 726 client_configure(env); 727 } 728 729 void 730 client_configure(struct env *env) 731 { 732 struct timeval tv; 733 struct idm *idm; 734 u_int16_t dlen; 735 736 log_debug("connecting to directories"); 737 738 imsg_compose_event(env->sc_iev, IMSG_START_UPDATE, 0, 0, -1, NULL, 0); 739 740 /* Start the DNS lookups */ 741 TAILQ_FOREACH(idm, &env->sc_idms, idm_entry) { 742 dlen = strlen(idm->idm_name) + 1; 743 imsg_compose_event(env->sc_iev_dns, IMSG_HOST_DNS, idm->idm_id, 744 0, -1, idm->idm_name, dlen); 745 } 746 747 tv.tv_sec = env->sc_conf_tv.tv_sec; 748 tv.tv_usec = env->sc_conf_tv.tv_usec; 749 evtimer_set(&env->sc_conf_ev, client_periodic_update, env); 750 evtimer_add(&env->sc_conf_ev, &tv); 751 } 752