1 /* $OpenBSD: ldapclient.c,v 1.49 2023/07/18 13:06:33 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_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 *, struct ypldap_addr *); 57 void client_addr_init(struct idm *); 58 int client_addr_free(struct idm *); 59 60 void 61 client_addr_init(struct idm *idm) 62 { 63 struct sockaddr_in *sa_in; 64 struct sockaddr_in6 *sa_in6; 65 struct ypldap_addr *h; 66 int defport; 67 68 if (idm->idm_port != 0) 69 defport = idm->idm_port; 70 else if (idm->idm_flags & F_SSL) 71 defport = LDAPS_PORT; 72 else 73 defport = LDAP_PORT; 74 75 TAILQ_FOREACH(h, &idm->idm_addr, next) { 76 switch (h->ss.ss_family) { 77 case AF_INET: 78 sa_in = (struct sockaddr_in *)&h->ss; 79 if (ntohs(sa_in->sin_port) == 0) 80 sa_in->sin_port = htons(defport); 81 idm->idm_state = STATE_DNS_DONE; 82 break; 83 case AF_INET6: 84 sa_in6 = (struct sockaddr_in6 *)&h->ss; 85 if (ntohs(sa_in6->sin6_port) == 0) 86 sa_in6->sin6_port = htons(defport); 87 idm->idm_state = STATE_DNS_DONE; 88 break; 89 default: 90 fatalx("king bula sez: wrong AF in client_addr_init"); 91 /* not reached */ 92 } 93 } 94 } 95 96 int 97 client_addr_free(struct idm *idm) 98 { 99 struct ypldap_addr *h; 100 101 while (!TAILQ_EMPTY(&idm->idm_addr)) { 102 h = TAILQ_FIRST(&idm->idm_addr); 103 TAILQ_REMOVE(&idm->idm_addr, h, next); 104 free(h); 105 } 106 107 return (0); 108 } 109 110 void 111 client_sig_handler(int sig, short event, void *p) 112 { 113 switch (sig) { 114 case SIGINT: 115 case SIGTERM: 116 client_shutdown(); 117 break; 118 case SIGHUP: 119 /* ingore */ 120 break; 121 default: 122 fatalx("unexpected signal"); 123 } 124 } 125 126 void 127 client_dispatch_dns(int fd, short events, void *p) 128 { 129 struct imsg imsg; 130 u_int16_t dlen; 131 u_char *data; 132 struct ypldap_addr *h; 133 int n, wait_cnt = 0; 134 struct idm *idm; 135 int shut = 0; 136 137 struct env *env = p; 138 struct imsgev *iev = env->sc_iev_dns; 139 struct imsgbuf *ibuf = &iev->ibuf; 140 141 if ((events & (EV_READ | EV_WRITE)) == 0) 142 fatalx("unknown event"); 143 144 if (events & EV_READ) { 145 if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) 146 fatal("imsg_read error"); 147 if (n == 0) 148 shut = 1; 149 } 150 if (events & EV_WRITE) { 151 if ((n = msgbuf_write(&ibuf->w)) == -1 && errno != EAGAIN) 152 fatal("msgbuf_write"); 153 if (n == 0) 154 shut = 1; 155 goto done; 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 done: 222 if (!shut) 223 imsg_event_add(iev); 224 else { 225 /* this pipe is dead, so remove the event handler */ 226 event_del(&iev->ev); 227 event_loopexit(NULL); 228 } 229 } 230 231 void 232 client_dispatch_parent(int fd, short events, void *p) 233 { 234 int n; 235 int shut = 0; 236 struct imsg imsg; 237 struct env *env = p; 238 struct imsgev *iev = env->sc_iev; 239 struct imsgbuf *ibuf = &iev->ibuf; 240 241 if ((events & (EV_READ | EV_WRITE)) == 0) 242 fatalx("unknown event"); 243 244 if (events & EV_READ) { 245 if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) 246 fatal("imsg_read error"); 247 if (n == 0) 248 shut = 1; 249 } 250 if (events & EV_WRITE) { 251 if ((n = msgbuf_write(&ibuf->w)) == -1 && errno != EAGAIN) 252 fatal("msgbuf_write"); 253 if (n == 0) 254 shut = 1; 255 goto done; 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 done: 308 if (!shut) 309 imsg_event_add(iev); 310 else { 311 /* this pipe is dead, so remove the event handler */ 312 event_del(&iev->ev); 313 event_loopexit(NULL); 314 } 315 } 316 317 void 318 client_shutdown(void) 319 { 320 log_info("ldap client exiting"); 321 _exit(0); 322 } 323 324 pid_t 325 ldapclient(int pipe_main2client[2]) 326 { 327 pid_t pid; 328 int pipe_dns[2]; 329 struct passwd *pw; 330 struct event ev_sigint; 331 struct event ev_sigterm; 332 struct event ev_sighup; 333 struct env env; 334 335 switch (pid = fork()) { 336 case -1: 337 fatal("cannot fork"); 338 break; 339 case 0: 340 break; 341 default: 342 return (pid); 343 } 344 345 memset(&env, 0, sizeof(env)); 346 TAILQ_INIT(&env.sc_idms); 347 348 if ((pw = getpwnam(YPLDAP_USER)) == NULL) 349 fatal("getpwnam"); 350 351 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_dns) == -1) 352 fatal("socketpair"); 353 ypldap_dns(pipe_dns, pw); 354 close(pipe_dns[1]); 355 356 #ifndef DEBUG 357 if (chroot(pw->pw_dir) == -1) 358 fatal("chroot"); 359 if (chdir("/") == -1) 360 fatal("chdir"); 361 #else 362 #warning disabling chrooting in DEBUG mode 363 #endif 364 setproctitle("ldap client"); 365 ypldap_process = PROC_CLIENT; 366 log_procname = log_procnames[ypldap_process]; 367 368 #ifndef DEBUG 369 if (setgroups(1, &pw->pw_gid) || 370 setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) || 371 setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid)) 372 fatal("cannot drop privileges"); 373 #else 374 #warning disabling privilege revocation in DEBUG mode 375 #endif 376 377 if (pledge("stdio inet", NULL) == -1) 378 fatal("pledge"); 379 380 event_init(); 381 signal(SIGPIPE, SIG_IGN); 382 signal_set(&ev_sigint, SIGINT, client_sig_handler, NULL); 383 signal_set(&ev_sigterm, SIGTERM, client_sig_handler, NULL); 384 signal_set(&ev_sighup, SIGHUP, client_sig_handler, NULL); 385 signal_add(&ev_sigint, NULL); 386 signal_add(&ev_sigterm, NULL); 387 signal_add(&ev_sighup, NULL); 388 389 close(pipe_main2client[0]); 390 if ((env.sc_iev = calloc(1, sizeof(*env.sc_iev))) == NULL) 391 fatal(NULL); 392 if ((env.sc_iev_dns = calloc(1, sizeof(*env.sc_iev_dns))) == NULL) 393 fatal(NULL); 394 395 env.sc_iev->events = EV_READ; 396 env.sc_iev->data = &env; 397 imsg_init(&env.sc_iev->ibuf, pipe_main2client[1]); 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 imsg_init(&env.sc_iev_dns->ibuf, pipe_dns[0]); 406 env.sc_iev_dns->handler = client_dispatch_dns; 407 event_set(&env.sc_iev_dns->ev, env.sc_iev_dns->ibuf.fd, 408 env.sc_iev_dns->events, env.sc_iev_dns->handler, &env); 409 event_add(&env.sc_iev_dns->ev, NULL); 410 411 event_dispatch(); 412 client_shutdown(); 413 414 return (0); 415 416 } 417 418 int 419 client_build_req(struct idm *idm, struct idm_req *ir, struct aldap_message *m, 420 int min_attr, int max_attr) 421 { 422 struct aldap_stringset *ldap_attrs; 423 int i; 424 size_t k; 425 426 memset(ir, 0, sizeof(*ir)); 427 for (i = min_attr; i < max_attr; i++) { 428 if (idm->idm_flags & F_FIXED_ATTR(i)) { 429 if (strlcat(ir->ir_line, idm->idm_attrs[i], 430 sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) 431 /* 432 * entry yields a line > 1024, trash it. 433 */ 434 return (-1); 435 436 if (i == ATTR_UID) { 437 ir->ir_key.ik_uid = strtonum( 438 idm->idm_attrs[i], 0, 439 UID_MAX, NULL); 440 } else if (i == ATTR_GR_GID) { 441 ir->ir_key.ik_gid = strtonum( 442 idm->idm_attrs[i], 0, 443 GID_MAX, NULL); 444 } 445 } else if (idm->idm_list & F_LIST(i)) { 446 aldap_match_attr(m, idm->idm_attrs[i], &ldap_attrs); 447 for (k = 0; k >= 0 && ldap_attrs && k < ldap_attrs->len; k++) { 448 /* XXX: Fail when attributes have illegal characters e.g. ',' */ 449 if (strlcat(ir->ir_line, 450 ldap_attrs->str[k].ostr_val, 451 sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) 452 continue; 453 if (k + 1 < ldap_attrs->len) 454 if (strlcat(ir->ir_line, ",", 455 sizeof(ir->ir_line)) 456 >= sizeof(ir->ir_line)) { 457 aldap_free_attr(ldap_attrs); 458 return (-1); 459 } 460 } 461 aldap_free_attr(ldap_attrs); 462 } else { 463 if (aldap_match_attr(m, idm->idm_attrs[i], &ldap_attrs) == -1) 464 return (-1); 465 if (strlcat(ir->ir_line, ldap_attrs->str[0].ostr_val, 466 sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) { 467 aldap_free_attr(ldap_attrs); 468 return (-1); 469 } 470 if (i == ATTR_UID) { 471 ir->ir_key.ik_uid = strtonum( 472 ldap_attrs->str[0].ostr_val, 0, UID_MAX, 473 NULL); 474 } else if (i == ATTR_GR_GID) { 475 ir->ir_key.ik_uid = strtonum( 476 ldap_attrs->str[0].ostr_val, 0, GID_MAX, 477 NULL); 478 } 479 aldap_free_attr(ldap_attrs); 480 } 481 482 if (i + 1 != max_attr) 483 if (strlcat(ir->ir_line, ":", 484 sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) 485 return (-1); 486 } 487 488 return (0); 489 } 490 491 int 492 client_search_idm(struct env *env, struct idm *idm, struct aldap *al, 493 char **attrs, char *filter, int min_attr, int max_attr, 494 enum imsg_type type) 495 { 496 struct idm_req ir; 497 struct aldap_message *m; 498 struct aldap_page_control *pg = NULL; 499 const char *errstr; 500 char *dn; 501 502 dn = idm->idm_basedn; 503 if (type == IMSG_GRP_ENTRY && idm->idm_groupdn[0] != '\0') 504 dn = idm->idm_groupdn; 505 506 do { 507 if (aldap_search(al, dn, LDAP_SCOPE_SUBTREE, 508 filter, attrs, 0, 0, 0, pg) == -1) { 509 aldap_get_errno(al, &errstr); 510 log_debug("%s", errstr); 511 return (-1); 512 } 513 514 if (pg != NULL) { 515 aldap_freepage(pg); 516 pg = NULL; 517 } 518 519 while ((m = aldap_parse(al)) != NULL) { 520 if (al->msgid != m->msgid) { 521 goto fail; 522 } 523 524 if (m->message_type == LDAP_RES_SEARCH_RESULT) { 525 if (m->page != NULL && m->page->cookie_len != 0) 526 pg = m->page; 527 else 528 pg = NULL; 529 530 aldap_freemsg(m); 531 break; 532 } 533 534 if (m->message_type != LDAP_RES_SEARCH_ENTRY) { 535 goto fail; 536 } 537 538 if (client_build_req(idm, &ir, m, min_attr, max_attr) == 0) 539 imsg_compose_event(env->sc_iev, type, 0, 0, -1, 540 &ir, sizeof(ir.ir_key) + 541 strlen(ir.ir_line) + 1); 542 543 aldap_freemsg(m); 544 } 545 } while (pg != NULL); 546 547 return (0); 548 549 fail: 550 aldap_freemsg(m); 551 if (pg != NULL) { 552 aldap_freepage(pg); 553 } 554 555 return (-1); 556 } 557 558 int 559 client_try_idm(struct env *env, struct idm *idm, struct ypldap_addr *addr) 560 { 561 const char *where; 562 char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV]; 563 char *attrs[ATTR_MAX+1]; 564 int fd = -1; 565 int i, j; 566 struct sockaddr *sa = (struct sockaddr *)&addr->ss; 567 struct aldap_message *m; 568 struct aldap *al; 569 570 if (getnameinfo(sa, SA_LEN(sa), hbuf, sizeof(hbuf), sbuf, 571 sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV)) 572 errx(1, "could not get numeric hostname"); 573 574 where = "connect"; 575 if ((fd = socket(sa->sa_family, SOCK_STREAM, 0)) == -1) 576 return (-1); 577 578 if (connect(fd, sa, SA_LEN(sa)) != 0) { 579 log_warn("connect to %s port %s failed", hbuf, sbuf); 580 close(fd); 581 return (-1); 582 } 583 584 al = aldap_init(fd); 585 if (al == NULL) { 586 close(fd); 587 return (-1); 588 } 589 590 if (idm->idm_flags & F_STARTTLS) { 591 log_debug("requesting starttls"); 592 where = "starttls"; 593 if (aldap_req_starttls(al) == -1) 594 goto bad; 595 596 where = "parsing"; 597 if ((m = aldap_parse(al)) == NULL) 598 goto bad; 599 where = "verifying msgid"; 600 if (al->msgid != m->msgid) { 601 aldap_freemsg(m); 602 goto bad; 603 } 604 where = "starttls result"; 605 if (aldap_get_resultcode(m) != LDAP_SUCCESS) { 606 aldap_freemsg(m); 607 goto bad; 608 } 609 aldap_freemsg(m); 610 } 611 612 if (idm->idm_flags & (F_STARTTLS | F_SSL)) { 613 log_debug("starting tls"); 614 where = "enabling tls"; 615 if (aldap_tls(al, idm->idm_tls_config, idm->idm_name) < 0) { 616 const char *err; 617 aldap_get_errno(al, &err); 618 log_warnx("TLS handshake with %s(%s) failed: %s", 619 idm->idm_name, hbuf, err); 620 goto bad; 621 } 622 } 623 624 if (idm->idm_flags & F_NEEDAUTH) { 625 int rc; 626 627 where = "binding"; 628 if (idm->idm_bindext != 0) 629 rc = aldap_bind_sasl_external(al, idm->idm_bindextid); 630 else 631 rc = aldap_bind(al, idm->idm_binddn, idm->idm_bindcred); 632 if (rc == -1) 633 goto bad; 634 635 where = "parsing"; 636 if ((m = aldap_parse(al)) == NULL) 637 goto bad; 638 where = "verifying msgid"; 639 if (al->msgid != m->msgid) { 640 aldap_freemsg(m); 641 goto bad; 642 } 643 where = "bind response"; 644 rc = aldap_get_resultcode(m); 645 if (rc != LDAP_SUCCESS) { 646 log_warnx("LDAP bind with %s(%s) failed: result code" 647 " %d", idm->idm_name, hbuf, rc); 648 aldap_freemsg(m); 649 goto bad; 650 } 651 aldap_freemsg(m); 652 } 653 654 memset(attrs, 0, sizeof(attrs)); 655 for (i = 0, j = 0; i < ATTR_MAX; i++) { 656 if (idm->idm_flags & F_FIXED_ATTR(i)) 657 continue; 658 attrs[j++] = idm->idm_attrs[i]; 659 } 660 attrs[j] = NULL; 661 662 /* 663 * build password line. 664 */ 665 where = "search"; 666 log_debug("searching password entries"); 667 if (client_search_idm(env, idm, al, attrs, 668 idm->idm_filters[FILTER_USER], 0, ATTR_MAX, IMSG_PW_ENTRY) == -1) 669 goto bad; 670 671 memset(attrs, 0, sizeof(attrs)); 672 for (i = ATTR_GR_MIN, j = 0; i < ATTR_GR_MAX; i++) { 673 if (idm->idm_flags & F_FIXED_ATTR(i)) 674 continue; 675 attrs[j++] = idm->idm_attrs[i]; 676 } 677 attrs[j] = NULL; 678 679 /* 680 * build group line. 681 */ 682 where = "search"; 683 log_debug("searching group entries"); 684 if (client_search_idm(env, idm, al, attrs, 685 idm->idm_filters[FILTER_GROUP], ATTR_GR_MIN, ATTR_GR_MAX, 686 IMSG_GRP_ENTRY) == -1) 687 goto bad; 688 689 aldap_close(al); 690 691 idm->idm_state = STATE_LDAP_DONE; 692 693 return (0); 694 bad: 695 aldap_close(al); 696 log_debug("directory %s(%s) errored out in %s", idm->idm_name, hbuf, 697 where); 698 return (-1); 699 } 700 701 void 702 client_periodic_update(int fd, short event, void *p) 703 { 704 struct env *env = p; 705 706 struct idm *idm; 707 int fail_cnt = 0; 708 709 /* If LDAP isn't finished, notify the master process to trash the 710 * update. */ 711 TAILQ_FOREACH(idm, &env->sc_idms, idm_entry) { 712 if (idm->idm_state < STATE_LDAP_DONE) 713 fail_cnt++; 714 715 idm->idm_state = STATE_NONE; 716 717 client_addr_free(idm); 718 } 719 if (fail_cnt > 0) { 720 log_debug("trash the update"); 721 imsg_compose_event(env->sc_iev, IMSG_TRASH_UPDATE, 0, 0, -1, 722 NULL, 0); 723 } 724 725 client_configure(env); 726 } 727 728 void 729 client_configure(struct env *env) 730 { 731 struct timeval tv; 732 struct idm *idm; 733 u_int16_t dlen; 734 735 log_debug("connecting to directories"); 736 737 imsg_compose_event(env->sc_iev, IMSG_START_UPDATE, 0, 0, -1, NULL, 0); 738 739 /* Start the DNS lookups */ 740 TAILQ_FOREACH(idm, &env->sc_idms, idm_entry) { 741 dlen = strlen(idm->idm_name) + 1; 742 imsg_compose_event(env->sc_iev_dns, IMSG_HOST_DNS, idm->idm_id, 743 0, -1, idm->idm_name, dlen); 744 } 745 746 tv.tv_sec = env->sc_conf_tv.tv_sec; 747 tv.tv_usec = env->sc_conf_tv.tv_usec; 748 evtimer_set(&env->sc_conf_ev, client_periodic_update, env); 749 evtimer_add(&env->sc_conf_ev, &tv); 750 } 751