1290931Srodrigc/* $OpenBSD: ldapclient.c,v 1.31 2014/11/16 23:24:44 tedu Exp $ */ 2290931Srodrigc/* $FreeBSD: stable/11/usr.sbin/ypldap/ldapclient.c 309872 2016-12-12 02:24:54Z araujo $ */ 3290931Srodrigc 4290931Srodrigc/* 5290931Srodrigc * Copyright (c) 2008 Alexander Schrijver <aschrijver@openbsd.org> 6290931Srodrigc * Copyright (c) 2008 Pierre-Yves Ritschard <pyr@openbsd.org> 7290931Srodrigc * 8290931Srodrigc * Permission to use, copy, modify, and distribute this software for any 9290931Srodrigc * purpose with or without fee is hereby granted, provided that the above 10290931Srodrigc * copyright notice and this permission notice appear in all copies. 11290931Srodrigc * 12290931Srodrigc * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13290931Srodrigc * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14290931Srodrigc * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15290931Srodrigc * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16290931Srodrigc * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17290931Srodrigc * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18290931Srodrigc * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19290931Srodrigc */ 20290931Srodrigc 21290931Srodrigc#include <sys/types.h> 22290931Srodrigc#include <sys/param.h> 23290931Srodrigc#include <sys/queue.h> 24290931Srodrigc#include <sys/socket.h> 25290931Srodrigc#include <sys/tree.h> 26290931Srodrigc 27290931Srodrigc#include <netinet/in.h> 28290931Srodrigc#include <arpa/inet.h> 29290931Srodrigc 30290931Srodrigc#include <netdb.h> 31290931Srodrigc#include <errno.h> 32290931Srodrigc#include <err.h> 33290931Srodrigc#include <event.h> 34290931Srodrigc#include <fcntl.h> 35290931Srodrigc#include <unistd.h> 36290931Srodrigc#include <pwd.h> 37290942Srodrigc#include <signal.h> 38290931Srodrigc#include <stdio.h> 39290931Srodrigc#include <stdlib.h> 40290931Srodrigc#include <string.h> 41290931Srodrigc 42290931Srodrigc#include "aldap.h" 43290931Srodrigc#include "ypldap.h" 44290931Srodrigc 45290931Srodrigcvoid client_sig_handler(int, short, void *); 46290931Srodrigcvoid client_dispatch_dns(int, short, void *); 47290931Srodrigcvoid client_dispatch_parent(int, short, void *); 48290931Srodrigcvoid client_shutdown(void); 49290931Srodrigcvoid client_connect(int, short, void *); 50290931Srodrigcvoid client_configure(struct env *); 51290931Srodrigcvoid client_periodic_update(int, short, void *); 52290931Srodrigcint client_build_req(struct idm *, struct idm_req *, struct aldap_message *, 53290931Srodrigc int, int); 54290931Srodrigcint client_search_idm(struct env *, struct idm *, struct aldap *, 55290931Srodrigc char **, char *, int, int, enum imsg_type); 56290931Srodrigcint client_try_idm(struct env *, struct idm *); 57290931Srodrigcint client_addr_init(struct idm *); 58290931Srodrigcint client_addr_free(struct idm *); 59290931Srodrigc 60297907Saraujostruct aldap *client_aldap_open(struct ypldap_addr_list *); 61290931Srodrigc 62290931Srodrigc/* 63290931Srodrigc * dummy wrapper to provide aldap_init with its fd's. 64290931Srodrigc */ 65290931Srodrigcstruct aldap * 66297907Saraujoclient_aldap_open(struct ypldap_addr_list *addr) 67290931Srodrigc{ 68290931Srodrigc int fd = -1; 69290931Srodrigc struct ypldap_addr *p; 70290931Srodrigc 71297907Saraujo TAILQ_FOREACH(p, addr, next) { 72290931Srodrigc char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV]; 73290931Srodrigc struct sockaddr *sa = (struct sockaddr *)&p->ss; 74290931Srodrigc 75290940Srodrigc if (getnameinfo(sa, sa->sa_len, hbuf, sizeof(hbuf), sbuf, 76290931Srodrigc sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV)) 77290931Srodrigc errx(1, "could not get numeric hostname"); 78290931Srodrigc 79290931Srodrigc if ((fd = socket(sa->sa_family, SOCK_STREAM, 0)) < 0) 80290931Srodrigc return NULL; 81290931Srodrigc 82290940Srodrigc if (connect(fd, sa, sa->sa_len) == 0) 83290931Srodrigc break; 84290931Srodrigc 85290931Srodrigc warn("connect to %s port %s (%s) failed", hbuf, sbuf, "tcp"); 86290931Srodrigc close(fd); 87290931Srodrigc } 88290931Srodrigc 89290931Srodrigc if (fd == -1) 90290931Srodrigc return NULL; 91290931Srodrigc 92290931Srodrigc return aldap_init(fd); 93290931Srodrigc} 94290931Srodrigc 95290931Srodrigcint 96290931Srodrigcclient_addr_init(struct idm *idm) 97290931Srodrigc{ 98290931Srodrigc struct sockaddr_in *sa_in; 99290931Srodrigc struct sockaddr_in6 *sa_in6; 100290931Srodrigc struct ypldap_addr *h; 101290931Srodrigc 102297907Saraujo TAILQ_FOREACH(h, &idm->idm_addr, next) { 103290931Srodrigc switch (h->ss.ss_family) { 104290931Srodrigc case AF_INET: 105290931Srodrigc sa_in = (struct sockaddr_in *)&h->ss; 106290931Srodrigc if (ntohs(sa_in->sin_port) == 0) 107290931Srodrigc sa_in->sin_port = htons(LDAP_PORT); 108290931Srodrigc idm->idm_state = STATE_DNS_DONE; 109290931Srodrigc break; 110290931Srodrigc case AF_INET6: 111290931Srodrigc sa_in6 = (struct sockaddr_in6 *)&h->ss; 112290931Srodrigc if (ntohs(sa_in6->sin6_port) == 0) 113290931Srodrigc sa_in6->sin6_port = htons(LDAP_PORT); 114290931Srodrigc idm->idm_state = STATE_DNS_DONE; 115290931Srodrigc break; 116290931Srodrigc default: 117290931Srodrigc fatalx("king bula sez: wrong AF in client_addr_init"); 118290931Srodrigc /* not reached */ 119290931Srodrigc } 120290931Srodrigc } 121290931Srodrigc 122290931Srodrigc return (0); 123290931Srodrigc} 124290931Srodrigc 125290931Srodrigcint 126290931Srodrigcclient_addr_free(struct idm *idm) 127290931Srodrigc{ 128297907Saraujo struct ypldap_addr *h; 129290931Srodrigc 130297907Saraujo while (!TAILQ_EMPTY(&idm->idm_addr)) { 131297907Saraujo h = TAILQ_FIRST(&idm->idm_addr); 132297907Saraujo TAILQ_REMOVE(&idm->idm_addr, h, next); 133290931Srodrigc free(h); 134290931Srodrigc } 135290931Srodrigc 136290931Srodrigc return (0); 137290931Srodrigc} 138290931Srodrigc 139290931Srodrigcvoid 140290931Srodrigcclient_sig_handler(int sig, short event, void *p) 141290931Srodrigc{ 142290931Srodrigc switch (sig) { 143290931Srodrigc case SIGINT: 144290931Srodrigc case SIGTERM: 145290931Srodrigc client_shutdown(); 146290931Srodrigc break; 147290931Srodrigc default: 148290931Srodrigc fatalx("unexpected signal"); 149290931Srodrigc } 150290931Srodrigc} 151290931Srodrigc 152290931Srodrigcvoid 153290931Srodrigcclient_dispatch_dns(int fd, short events, void *p) 154290931Srodrigc{ 155290931Srodrigc struct imsg imsg; 156290931Srodrigc u_int16_t dlen; 157290931Srodrigc u_char *data; 158290931Srodrigc struct ypldap_addr *h; 159290931Srodrigc int n, wait_cnt = 0; 160290931Srodrigc struct idm *idm; 161290931Srodrigc int shut = 0; 162290931Srodrigc 163290931Srodrigc struct env *env = p; 164290931Srodrigc struct imsgev *iev = env->sc_iev_dns; 165290931Srodrigc struct imsgbuf *ibuf = &iev->ibuf; 166290931Srodrigc 167290931Srodrigc if ((events & (EV_READ | EV_WRITE)) == 0) 168290931Srodrigc fatalx("unknown event"); 169290931Srodrigc 170290931Srodrigc if (events & EV_READ) { 171292270Saraujo if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) 172290931Srodrigc fatal("imsg_read error"); 173290931Srodrigc if (n == 0) 174290931Srodrigc shut = 1; 175290931Srodrigc } 176290931Srodrigc if (events & EV_WRITE) { 177290931Srodrigc if ((n = msgbuf_write(&ibuf->w)) == -1 && errno != EAGAIN) 178290931Srodrigc fatal("msgbuf_write"); 179290931Srodrigc if (n == 0) 180290931Srodrigc shut = 1; 181290931Srodrigc goto done; 182290931Srodrigc } 183290931Srodrigc 184290931Srodrigc for (;;) { 185290931Srodrigc if ((n = imsg_get(ibuf, &imsg)) == -1) 186290931Srodrigc fatal("client_dispatch_dns: imsg_get error"); 187290931Srodrigc if (n == 0) 188290931Srodrigc break; 189290931Srodrigc 190290931Srodrigc switch (imsg.hdr.type) { 191290931Srodrigc case IMSG_HOST_DNS: 192290931Srodrigc TAILQ_FOREACH(idm, &env->sc_idms, idm_entry) 193290931Srodrigc if (idm->idm_id == imsg.hdr.peerid) 194290931Srodrigc break; 195290931Srodrigc if (idm == NULL) { 196290931Srodrigc log_warnx("IMSG_HOST_DNS with invalid peerID"); 197290931Srodrigc break; 198290931Srodrigc } 199297907Saraujo if (!TAILQ_EMPTY(&idm->idm_addr)) { 200297907Saraujo log_warnx("IMSG_HOST_DNS but addrs set!"); 201290931Srodrigc break; 202290931Srodrigc } 203290931Srodrigc 204290931Srodrigc dlen = imsg.hdr.len - IMSG_HEADER_SIZE; 205290931Srodrigc if (dlen == 0) { /* no data -> temp error */ 206290931Srodrigc idm->idm_state = STATE_DNS_TEMPFAIL; 207290931Srodrigc break; 208290931Srodrigc } 209290931Srodrigc 210290931Srodrigc data = (u_char *)imsg.data; 211290931Srodrigc while (dlen >= sizeof(struct sockaddr_storage)) { 212297907Saraujo if ((h = calloc(1, sizeof(*h))) == NULL) 213290931Srodrigc fatal(NULL); 214290931Srodrigc memcpy(&h->ss, data, sizeof(h->ss)); 215297907Saraujo TAILQ_INSERT_HEAD(&idm->idm_addr, h, next); 216290931Srodrigc 217290931Srodrigc data += sizeof(h->ss); 218290931Srodrigc dlen -= sizeof(h->ss); 219290931Srodrigc } 220290931Srodrigc if (dlen != 0) 221290931Srodrigc fatalx("IMSG_HOST_DNS: dlen != 0"); 222290931Srodrigc 223290931Srodrigc client_addr_init(idm); 224290931Srodrigc 225290931Srodrigc break; 226290931Srodrigc default: 227290931Srodrigc break; 228290931Srodrigc } 229290931Srodrigc imsg_free(&imsg); 230290931Srodrigc } 231290931Srodrigc 232290931Srodrigc TAILQ_FOREACH(idm, &env->sc_idms, idm_entry) { 233290931Srodrigc if (client_try_idm(env, idm) == -1) 234290931Srodrigc idm->idm_state = STATE_LDAP_FAIL; 235290931Srodrigc 236290931Srodrigc if (idm->idm_state < STATE_LDAP_DONE) 237290931Srodrigc wait_cnt++; 238290931Srodrigc } 239290931Srodrigc if (wait_cnt == 0) 240290931Srodrigc imsg_compose_event(env->sc_iev, IMSG_END_UPDATE, 0, 0, -1, 241290931Srodrigc NULL, 0); 242290931Srodrigc 243290931Srodrigcdone: 244290931Srodrigc if (!shut) 245290931Srodrigc imsg_event_add(iev); 246290931Srodrigc else { 247290931Srodrigc /* this pipe is dead, so remove the event handler */ 248290931Srodrigc event_del(&iev->ev); 249290931Srodrigc event_loopexit(NULL); 250290931Srodrigc } 251290931Srodrigc} 252290931Srodrigc 253290931Srodrigcvoid 254290931Srodrigcclient_dispatch_parent(int fd, short events, void *p) 255290931Srodrigc{ 256290931Srodrigc int n; 257290931Srodrigc int shut = 0; 258290931Srodrigc struct imsg imsg; 259290931Srodrigc struct env *env = p; 260290931Srodrigc struct imsgev *iev = env->sc_iev; 261290931Srodrigc struct imsgbuf *ibuf = &iev->ibuf; 262290931Srodrigc 263290931Srodrigc if ((events & (EV_READ | EV_WRITE)) == 0) 264290931Srodrigc fatalx("unknown event"); 265290931Srodrigc 266290931Srodrigc if (events & EV_READ) { 267292270Saraujo if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN) 268290931Srodrigc fatal("imsg_read error"); 269290931Srodrigc if (n == 0) 270290931Srodrigc shut = 1; 271290931Srodrigc } 272290931Srodrigc if (events & EV_WRITE) { 273290931Srodrigc if ((n = msgbuf_write(&ibuf->w)) == -1 && errno != EAGAIN) 274290931Srodrigc fatal("msgbuf_write"); 275290931Srodrigc if (n == 0) 276290931Srodrigc shut = 1; 277290931Srodrigc goto done; 278290931Srodrigc } 279290931Srodrigc 280290931Srodrigc for (;;) { 281290931Srodrigc if ((n = imsg_get(ibuf, &imsg)) == -1) 282290931Srodrigc fatal("client_dispatch_parent: imsg_get error"); 283290931Srodrigc if (n == 0) 284290931Srodrigc break; 285290931Srodrigc 286290931Srodrigc switch (imsg.hdr.type) { 287290931Srodrigc case IMSG_CONF_START: { 288290931Srodrigc struct env params; 289290931Srodrigc 290290931Srodrigc if (env->sc_flags & F_CONFIGURING) { 291290931Srodrigc log_warnx("configuration already in progress"); 292290931Srodrigc break; 293290931Srodrigc } 294290931Srodrigc memcpy(¶ms, imsg.data, sizeof(params)); 295290931Srodrigc log_debug("configuration starting"); 296290931Srodrigc env->sc_flags |= F_CONFIGURING; 297290931Srodrigc purge_config(env); 298290931Srodrigc memcpy(&env->sc_conf_tv, ¶ms.sc_conf_tv, 299290931Srodrigc sizeof(env->sc_conf_tv)); 300290931Srodrigc env->sc_flags |= params.sc_flags; 301290931Srodrigc break; 302290931Srodrigc } 303290931Srodrigc case IMSG_CONF_IDM: { 304290931Srodrigc struct idm *idm; 305290931Srodrigc 306290931Srodrigc if (!(env->sc_flags & F_CONFIGURING)) 307290931Srodrigc break; 308290931Srodrigc if ((idm = calloc(1, sizeof(*idm))) == NULL) 309290931Srodrigc fatal(NULL); 310290931Srodrigc memcpy(idm, imsg.data, sizeof(*idm)); 311290931Srodrigc idm->idm_env = env; 312290931Srodrigc TAILQ_INSERT_TAIL(&env->sc_idms, idm, idm_entry); 313290931Srodrigc break; 314290931Srodrigc } 315290931Srodrigc case IMSG_CONF_END: 316290931Srodrigc env->sc_flags &= ~F_CONFIGURING; 317290931Srodrigc log_debug("applying configuration"); 318290931Srodrigc client_configure(env); 319290931Srodrigc break; 320290931Srodrigc default: 321290931Srodrigc log_debug("client_dispatch_parent: unexpect imsg %d", 322290931Srodrigc imsg.hdr.type); 323290931Srodrigc 324290931Srodrigc break; 325290931Srodrigc } 326290931Srodrigc imsg_free(&imsg); 327290931Srodrigc } 328290931Srodrigc 329290931Srodrigcdone: 330290931Srodrigc if (!shut) 331290931Srodrigc imsg_event_add(iev); 332290931Srodrigc else { 333290931Srodrigc /* this pipe is dead, so remove the event handler */ 334290931Srodrigc event_del(&iev->ev); 335290931Srodrigc event_loopexit(NULL); 336290931Srodrigc } 337290931Srodrigc} 338290931Srodrigc 339290931Srodrigcvoid 340290931Srodrigcclient_shutdown(void) 341290931Srodrigc{ 342290931Srodrigc log_info("ldap client exiting"); 343290931Srodrigc _exit(0); 344290931Srodrigc} 345290931Srodrigc 346290931Srodrigcpid_t 347290931Srodrigcldapclient(int pipe_main2client[2]) 348290931Srodrigc{ 349290931Srodrigc pid_t pid, dns_pid; 350290931Srodrigc int pipe_dns[2]; 351290931Srodrigc struct passwd *pw; 352290931Srodrigc struct event ev_sigint; 353290931Srodrigc struct event ev_sigterm; 354290931Srodrigc struct env env; 355290931Srodrigc 356290931Srodrigc switch (pid = fork()) { 357290931Srodrigc case -1: 358290931Srodrigc fatal("cannot fork"); 359290931Srodrigc break; 360290931Srodrigc case 0: 361290931Srodrigc break; 362290931Srodrigc default: 363290931Srodrigc return (pid); 364290931Srodrigc } 365290931Srodrigc 366309872Saraujo memset(&env, 0, sizeof(env)); 367290931Srodrigc TAILQ_INIT(&env.sc_idms); 368290931Srodrigc 369292273Saraujo if ((pw = getpwnam(YPLDAP_USER)) == NULL) 370290931Srodrigc fatal("getpwnam"); 371290931Srodrigc 372290931Srodrigc if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_dns) == -1) 373290931Srodrigc fatal("socketpair"); 374290931Srodrigc dns_pid = ypldap_dns(pipe_dns, pw); 375290931Srodrigc close(pipe_dns[1]); 376290931Srodrigc 377290931Srodrigc#ifndef DEBUG 378290931Srodrigc if (chroot(pw->pw_dir) == -1) 379290931Srodrigc fatal("chroot"); 380290931Srodrigc if (chdir("/") == -1) 381290931Srodrigc fatal("chdir"); 382290931Srodrigc#else 383290931Srodrigc#warning disabling chrooting in DEBUG mode 384290931Srodrigc#endif 385290931Srodrigc setproctitle("ldap client"); 386290931Srodrigc ypldap_process = PROC_CLIENT; 387290931Srodrigc 388290931Srodrigc#ifndef DEBUG 389290931Srodrigc if (setgroups(1, &pw->pw_gid) || 390290931Srodrigc setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) || 391290931Srodrigc setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid)) 392290931Srodrigc fatal("cannot drop privileges"); 393290931Srodrigc#else 394290931Srodrigc#warning disabling privilege revocation in DEBUG mode 395290931Srodrigc#endif 396290931Srodrigc 397290931Srodrigc event_init(); 398290931Srodrigc signal(SIGPIPE, SIG_IGN); 399290931Srodrigc signal_set(&ev_sigint, SIGINT, client_sig_handler, NULL); 400290931Srodrigc signal_set(&ev_sigterm, SIGTERM, client_sig_handler, NULL); 401290931Srodrigc signal_add(&ev_sigint, NULL); 402290931Srodrigc signal_add(&ev_sigterm, NULL); 403290931Srodrigc 404290931Srodrigc close(pipe_main2client[0]); 405290931Srodrigc if ((env.sc_iev = calloc(1, sizeof(*env.sc_iev))) == NULL) 406290931Srodrigc fatal(NULL); 407290931Srodrigc if ((env.sc_iev_dns = calloc(1, sizeof(*env.sc_iev_dns))) == NULL) 408290931Srodrigc fatal(NULL); 409290931Srodrigc 410290931Srodrigc env.sc_iev->events = EV_READ; 411290931Srodrigc env.sc_iev->data = &env; 412290931Srodrigc imsg_init(&env.sc_iev->ibuf, pipe_main2client[1]); 413290931Srodrigc env.sc_iev->handler = client_dispatch_parent; 414290931Srodrigc event_set(&env.sc_iev->ev, env.sc_iev->ibuf.fd, env.sc_iev->events, 415290931Srodrigc env.sc_iev->handler, &env); 416290931Srodrigc event_add(&env.sc_iev->ev, NULL); 417290931Srodrigc 418290931Srodrigc env.sc_iev_dns->events = EV_READ; 419290931Srodrigc env.sc_iev_dns->data = &env; 420290931Srodrigc imsg_init(&env.sc_iev_dns->ibuf, pipe_dns[0]); 421290931Srodrigc env.sc_iev_dns->handler = client_dispatch_dns; 422290931Srodrigc event_set(&env.sc_iev_dns->ev, env.sc_iev_dns->ibuf.fd, 423290931Srodrigc env.sc_iev_dns->events, env.sc_iev_dns->handler, &env); 424290931Srodrigc event_add(&env.sc_iev_dns->ev, NULL); 425290931Srodrigc 426290931Srodrigc event_dispatch(); 427290931Srodrigc client_shutdown(); 428290931Srodrigc 429290931Srodrigc return (0); 430290931Srodrigc 431290931Srodrigc} 432290931Srodrigc 433290931Srodrigcint 434290931Srodrigcclient_build_req(struct idm *idm, struct idm_req *ir, struct aldap_message *m, 435290931Srodrigc int min_attr, int max_attr) 436290931Srodrigc{ 437290931Srodrigc char **ldap_attrs; 438290931Srodrigc int i, k; 439290931Srodrigc 440309872Saraujo memset(ir, 0, sizeof(*ir)); 441290931Srodrigc for (i = min_attr; i < max_attr; i++) { 442290931Srodrigc if (idm->idm_flags & F_FIXED_ATTR(i)) { 443290931Srodrigc if (strlcat(ir->ir_line, idm->idm_attrs[i], 444290931Srodrigc sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) 445290931Srodrigc /* 446290931Srodrigc * entry yields a line > 1024, trash it. 447290931Srodrigc */ 448290931Srodrigc return (-1); 449290931Srodrigc 450290931Srodrigc if (i == ATTR_UID) { 451290931Srodrigc ir->ir_key.ik_uid = strtonum( 452290931Srodrigc idm->idm_attrs[i], 0, 453290931Srodrigc UID_MAX, NULL); 454290931Srodrigc } else if (i == ATTR_GR_GID) { 455290931Srodrigc ir->ir_key.ik_gid = strtonum( 456290931Srodrigc idm->idm_attrs[i], 0, 457290931Srodrigc GID_MAX, NULL); 458290931Srodrigc } 459290931Srodrigc } else if (idm->idm_list & F_LIST(i)) { 460290931Srodrigc aldap_match_attr(m, idm->idm_attrs[i], &ldap_attrs); 461290931Srodrigc for (k = 0; k >= 0 && ldap_attrs && ldap_attrs[k] != NULL; k++) { 462290931Srodrigc /* XXX: Fail when attributes have illegal characters e.g. ',' */ 463290931Srodrigc if (strlcat(ir->ir_line, ldap_attrs[k], 464290931Srodrigc sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) 465290931Srodrigc continue; 466290931Srodrigc if (ldap_attrs[k+1] != NULL) 467290931Srodrigc if (strlcat(ir->ir_line, ",", 468290931Srodrigc sizeof(ir->ir_line)) 469290931Srodrigc >= sizeof(ir->ir_line)) { 470290931Srodrigc aldap_free_attr(ldap_attrs); 471290931Srodrigc return (-1); 472290931Srodrigc } 473290931Srodrigc } 474290931Srodrigc aldap_free_attr(ldap_attrs); 475290931Srodrigc } else { 476290931Srodrigc if (aldap_match_attr(m, idm->idm_attrs[i], &ldap_attrs) == -1) 477290931Srodrigc return (-1); 478290931Srodrigc if (strlcat(ir->ir_line, ldap_attrs[0], 479290931Srodrigc sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) { 480290931Srodrigc aldap_free_attr(ldap_attrs); 481290931Srodrigc return (-1); 482290931Srodrigc } 483290931Srodrigc if (i == ATTR_UID) { 484290931Srodrigc ir->ir_key.ik_uid = strtonum( 485290931Srodrigc ldap_attrs[0], 0, UID_MAX, NULL); 486290931Srodrigc } else if (i == ATTR_GR_GID) { 487290931Srodrigc ir->ir_key.ik_uid = strtonum( 488290931Srodrigc ldap_attrs[0], 0, GID_MAX, NULL); 489290931Srodrigc } 490290931Srodrigc aldap_free_attr(ldap_attrs); 491290931Srodrigc } 492290931Srodrigc 493290931Srodrigc if (i + 1 != max_attr) 494290931Srodrigc if (strlcat(ir->ir_line, ":", 495290931Srodrigc sizeof(ir->ir_line)) >= sizeof(ir->ir_line)) 496290931Srodrigc return (-1); 497290931Srodrigc } 498290931Srodrigc 499290931Srodrigc return (0); 500290931Srodrigc} 501290931Srodrigc 502290931Srodrigcint 503290931Srodrigcclient_search_idm(struct env *env, struct idm *idm, struct aldap *al, 504290931Srodrigc char **attrs, char *filter, int min_attr, int max_attr, 505290931Srodrigc enum imsg_type type) 506290931Srodrigc{ 507290931Srodrigc struct idm_req ir; 508290931Srodrigc struct aldap_message *m; 509290931Srodrigc struct aldap_page_control *pg = NULL; 510290931Srodrigc const char *errstr; 511290931Srodrigc char *dn; 512290931Srodrigc 513290931Srodrigc dn = idm->idm_basedn; 514290931Srodrigc if (type == IMSG_GRP_ENTRY && idm->idm_groupdn[0] != '\0') 515290931Srodrigc dn = idm->idm_groupdn; 516290931Srodrigc 517290931Srodrigc do { 518290931Srodrigc if (aldap_search(al, dn, LDAP_SCOPE_SUBTREE, 519290931Srodrigc filter, attrs, 0, 0, 0, pg) == -1) { 520290931Srodrigc aldap_get_errno(al, &errstr); 521290931Srodrigc log_debug("%s", errstr); 522290931Srodrigc return (-1); 523290931Srodrigc } 524290931Srodrigc 525290931Srodrigc if (pg != NULL) { 526290931Srodrigc aldap_freepage(pg); 527290931Srodrigc pg = NULL; 528290931Srodrigc } 529290931Srodrigc 530290931Srodrigc while ((m = aldap_parse(al)) != NULL) { 531290931Srodrigc if (al->msgid != m->msgid) { 532290931Srodrigc goto fail; 533290931Srodrigc } 534290931Srodrigc 535290931Srodrigc if (m->message_type == LDAP_RES_SEARCH_RESULT) { 536290931Srodrigc if (m->page != NULL && m->page->cookie_len != 0) 537290931Srodrigc pg = m->page; 538290931Srodrigc else 539290931Srodrigc pg = NULL; 540290931Srodrigc 541290931Srodrigc aldap_freemsg(m); 542290931Srodrigc break; 543290931Srodrigc } 544290931Srodrigc 545290931Srodrigc if (m->message_type != LDAP_RES_SEARCH_ENTRY) { 546290931Srodrigc goto fail; 547290931Srodrigc } 548290931Srodrigc 549290931Srodrigc if (client_build_req(idm, &ir, m, min_attr, max_attr) == 0) 550290931Srodrigc imsg_compose_event(env->sc_iev, type, 0, 0, -1, 551290931Srodrigc &ir, sizeof(ir)); 552290931Srodrigc 553290931Srodrigc aldap_freemsg(m); 554290931Srodrigc } 555290931Srodrigc } while (pg != NULL); 556290931Srodrigc 557290931Srodrigc return (0); 558290931Srodrigc 559290931Srodrigcfail: 560290931Srodrigc aldap_freemsg(m); 561290931Srodrigc if (pg != NULL) { 562290931Srodrigc aldap_freepage(pg); 563290931Srodrigc } 564290931Srodrigc 565290931Srodrigc return (-1); 566290931Srodrigc} 567290931Srodrigc 568290931Srodrigcint 569290931Srodrigcclient_try_idm(struct env *env, struct idm *idm) 570290931Srodrigc{ 571290931Srodrigc const char *where; 572290931Srodrigc char *attrs[ATTR_MAX+1]; 573290931Srodrigc int i, j; 574290931Srodrigc struct aldap_message *m; 575290931Srodrigc struct aldap *al; 576290931Srodrigc 577290931Srodrigc where = "connect"; 578297907Saraujo if ((al = client_aldap_open(&idm->idm_addr)) == NULL) 579290931Srodrigc return (-1); 580290931Srodrigc 581290931Srodrigc if (idm->idm_flags & F_NEEDAUTH) { 582290931Srodrigc where = "binding"; 583290931Srodrigc if (aldap_bind(al, idm->idm_binddn, idm->idm_bindcred) == -1) 584290931Srodrigc goto bad; 585290931Srodrigc 586290931Srodrigc where = "parsing"; 587290931Srodrigc if ((m = aldap_parse(al)) == NULL) 588290931Srodrigc goto bad; 589290931Srodrigc where = "verifying msgid"; 590290931Srodrigc if (al->msgid != m->msgid) { 591290931Srodrigc aldap_freemsg(m); 592290931Srodrigc goto bad; 593290931Srodrigc } 594290931Srodrigc aldap_freemsg(m); 595290931Srodrigc } 596290931Srodrigc 597309872Saraujo memset(attrs, 0, sizeof(attrs)); 598290931Srodrigc for (i = 0, j = 0; i < ATTR_MAX; i++) { 599290931Srodrigc if (idm->idm_flags & F_FIXED_ATTR(i)) 600290931Srodrigc continue; 601290931Srodrigc attrs[j++] = idm->idm_attrs[i]; 602290931Srodrigc } 603290931Srodrigc attrs[j] = NULL; 604290931Srodrigc 605290931Srodrigc /* 606290931Srodrigc * build password line. 607290931Srodrigc */ 608290931Srodrigc where = "search"; 609290931Srodrigc log_debug("searching password entries"); 610290931Srodrigc if (client_search_idm(env, idm, al, attrs, 611290931Srodrigc idm->idm_filters[FILTER_USER], 0, ATTR_MAX, IMSG_PW_ENTRY) == -1) 612290931Srodrigc goto bad; 613290931Srodrigc 614309872Saraujo memset(attrs, 0, sizeof(attrs)); 615290931Srodrigc for (i = ATTR_GR_MIN, j = 0; i < ATTR_GR_MAX; i++) { 616290931Srodrigc if (idm->idm_flags & F_FIXED_ATTR(i)) 617290931Srodrigc continue; 618290931Srodrigc attrs[j++] = idm->idm_attrs[i]; 619290931Srodrigc } 620290931Srodrigc attrs[j] = NULL; 621290931Srodrigc 622290931Srodrigc /* 623290931Srodrigc * build group line. 624290931Srodrigc */ 625290931Srodrigc where = "search"; 626290931Srodrigc log_debug("searching group entries"); 627290931Srodrigc if (client_search_idm(env, idm, al, attrs, 628290931Srodrigc idm->idm_filters[FILTER_GROUP], ATTR_GR_MIN, ATTR_GR_MAX, 629290931Srodrigc IMSG_GRP_ENTRY) == -1) 630290931Srodrigc goto bad; 631290931Srodrigc 632290931Srodrigc aldap_close(al); 633290931Srodrigc 634290931Srodrigc idm->idm_state = STATE_LDAP_DONE; 635290931Srodrigc 636290931Srodrigc return (0); 637290931Srodrigcbad: 638290931Srodrigc aldap_close(al); 639290931Srodrigc log_debug("directory %s errored out in %s", idm->idm_name, where); 640290931Srodrigc return (-1); 641290931Srodrigc} 642290931Srodrigc 643290931Srodrigcvoid 644290931Srodrigcclient_periodic_update(int fd, short event, void *p) 645290931Srodrigc{ 646290931Srodrigc struct env *env = p; 647290931Srodrigc 648290931Srodrigc struct idm *idm; 649290931Srodrigc int fail_cnt = 0; 650290931Srodrigc 651290931Srodrigc /* If LDAP isn't finished, notify the master process to trash the 652290931Srodrigc * update. */ 653290931Srodrigc TAILQ_FOREACH(idm, &env->sc_idms, idm_entry) { 654290931Srodrigc if (idm->idm_state < STATE_LDAP_DONE) 655290931Srodrigc fail_cnt++; 656290931Srodrigc 657290931Srodrigc idm->idm_state = STATE_NONE; 658290931Srodrigc 659290931Srodrigc client_addr_free(idm); 660290931Srodrigc } 661290931Srodrigc if (fail_cnt > 0) { 662290931Srodrigc log_debug("trash the update"); 663290931Srodrigc imsg_compose_event(env->sc_iev, IMSG_TRASH_UPDATE, 0, 0, -1, 664290931Srodrigc NULL, 0); 665290931Srodrigc } 666290931Srodrigc 667290931Srodrigc client_configure(env); 668290931Srodrigc} 669290931Srodrigc 670290931Srodrigcvoid 671290931Srodrigcclient_configure(struct env *env) 672290931Srodrigc{ 673290931Srodrigc struct timeval tv; 674290931Srodrigc struct idm *idm; 675290931Srodrigc u_int16_t dlen; 676290931Srodrigc 677290931Srodrigc log_debug("connecting to directories"); 678290931Srodrigc 679290931Srodrigc imsg_compose_event(env->sc_iev, IMSG_START_UPDATE, 0, 0, -1, NULL, 0); 680290931Srodrigc 681290931Srodrigc /* Start the DNS lookups */ 682290931Srodrigc TAILQ_FOREACH(idm, &env->sc_idms, idm_entry) { 683290931Srodrigc dlen = strlen(idm->idm_name) + 1; 684290931Srodrigc imsg_compose_event(env->sc_iev_dns, IMSG_HOST_DNS, idm->idm_id, 685290931Srodrigc 0, -1, idm->idm_name, dlen); 686290931Srodrigc } 687290931Srodrigc 688290931Srodrigc tv.tv_sec = env->sc_conf_tv.tv_sec; 689290931Srodrigc tv.tv_usec = env->sc_conf_tv.tv_usec; 690290931Srodrigc evtimer_set(&env->sc_conf_ev, client_periodic_update, env); 691290931Srodrigc evtimer_add(&env->sc_conf_ev, &tv); 692290931Srodrigc} 693