Bug Summary

File:src/usr.sbin/ypldap/ldapclient.c
Warning:line 596, column 2
Value stored to 'where' is never read

Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.0 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name ldapclient.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/usr.sbin/ypldap/obj -resource-dir /usr/local/lib/clang/13.0.0 -I /usr/src/usr.sbin/ypldap -internal-isystem /usr/local/lib/clang/13.0.0/include -internal-externc-isystem /usr/include -O2 -fdebug-compilation-dir=/usr/src/usr.sbin/ypldap/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/vmm/scan-build/2022-01-12-194120-40624-1 -x c /usr/src/usr.sbin/ypldap/ldapclient.c
1/* $OpenBSD: ldapclient.c,v 1.43 2019/06/28 13:32:52 deraadt 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(*__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
45void client_sig_handler(int, short, void *);
46void client_dispatch_dns(int, short, void *);
47void client_dispatch_parent(int, short, void *);
48void client_shutdown(void);
49void client_connect(int, short, void *);
50void client_configure(struct env *);
51void client_periodic_update(int, short, void *);
52int client_build_req(struct idm *, struct idm_req *, struct aldap_message *,
53 int, int);
54int client_search_idm(struct env *, struct idm *, struct aldap *,
55 char **, char *, int, int, enum imsg_type);
56int client_try_idm(struct env *, struct idm *);
57void client_addr_init(struct idm *);
58int client_addr_free(struct idm *);
59
60struct aldap *client_aldap_open(struct ypldap_addr_list *);
61
62/*
63 * dummy wrapper to provide aldap_init with its fd's.
64 */
65struct aldap *
66client_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)for((p) = ((addr)->tqh_first); (p) != ((void*)0); (p) = ((
p)->next.tqe_next)) {
73 char hbuf[NI_MAXHOST256], sbuf[NI_MAXSERV32];
74 struct sockaddr *sa = (struct sockaddr *)&p->ss;
75
76 if (getnameinfo(sa, SA_LEN(sa)((sa)->sa_len), hbuf, sizeof(hbuf), sbuf,
77 sizeof(sbuf), NI_NUMERICHOST1 | NI_NUMERICSERV2))
78 errx(1, "could not get numeric hostname");
79
80 if ((fd = socket(sa->sa_family, SOCK_STREAM1, 0)) == -1)
81 return NULL((void*)0);
82
83 if (connect(fd, sa, SA_LEN(sa)((sa)->sa_len)) == 0)
84 break;
85
86 warn("connect to %s port %s (%s) failed", hbuf, sbuf, "tcp");
87 close(fd);
88 fd = -1;
89 }
90
91 if (fd == -1)
92 return NULL((void*)0);
93
94 al = aldap_init(fd);
95 if (al == NULL((void*)0))
96 close(fd);
97 return al;
98}
99
100void
101client_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_SSL0x00100000)
111 defport = LDAPS_PORT636;
112 else
113 defport = LDAP_PORT389;
114
115 TAILQ_FOREACH(h, &idm->idm_addr, next)for((h) = ((&idm->idm_addr)->tqh_first); (h) != ((void
*)0); (h) = ((h)->next.tqe_next)) {
116 switch (h->ss.ss_family) {
117 case AF_INET2:
118 sa_in = (struct sockaddr_in *)&h->ss;
119 if (ntohs(sa_in->sin_port)(__uint16_t)(__builtin_constant_p(sa_in->sin_port) ? (__uint16_t
)(((__uint16_t)(sa_in->sin_port) & 0xffU) << 8 |
((__uint16_t)(sa_in->sin_port) & 0xff00U) >> 8)
: __swap16md(sa_in->sin_port)) == 0)
120 sa_in->sin_port = htons(defport)(__uint16_t)(__builtin_constant_p(defport) ? (__uint16_t)(((__uint16_t
)(defport) & 0xffU) << 8 | ((__uint16_t)(defport) &
0xff00U) >> 8) : __swap16md(defport));
121 idm->idm_state = STATE_DNS_DONE;
122 break;
123 case AF_INET624:
124 sa_in6 = (struct sockaddr_in6 *)&h->ss;
125 if (ntohs(sa_in6->sin6_port)(__uint16_t)(__builtin_constant_p(sa_in6->sin6_port) ? (__uint16_t
)(((__uint16_t)(sa_in6->sin6_port) & 0xffU) << 8
| ((__uint16_t)(sa_in6->sin6_port) & 0xff00U) >>
8) : __swap16md(sa_in6->sin6_port)) == 0)
126 sa_in6->sin6_port = htons(defport)(__uint16_t)(__builtin_constant_p(defport) ? (__uint16_t)(((__uint16_t
)(defport) & 0xffU) << 8 | ((__uint16_t)(defport) &
0xff00U) >> 8) : __swap16md(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
136int
137client_addr_free(struct idm *idm)
138{
139 struct ypldap_addr *h;
140
141 while (!TAILQ_EMPTY(&idm->idm_addr)(((&idm->idm_addr)->tqh_first) == ((void*)0))) {
142 h = TAILQ_FIRST(&idm->idm_addr)((&idm->idm_addr)->tqh_first);
143 TAILQ_REMOVE(&idm->idm_addr, h, next)do { if (((h)->next.tqe_next) != ((void*)0)) (h)->next.
tqe_next->next.tqe_prev = (h)->next.tqe_prev; else (&
idm->idm_addr)->tqh_last = (h)->next.tqe_prev; *(h)->
next.tqe_prev = (h)->next.tqe_next; ; ; } while (0);
144 free(h);
145 }
146
147 return (0);
148}
149
150void
151client_sig_handler(int sig, short event, void *p)
152{
153 switch (sig) {
154 case SIGINT2:
155 case SIGTERM15:
156 client_shutdown();
157 break;
158 default:
159 fatalx("unexpected signal");
160 }
161}
162
163void
164client_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_READ0x02 | EV_WRITE0x04)) == 0)
179 fatalx("unknown event");
180
181 if (events & EV_READ0x02) {
182 if ((n = imsg_read(ibuf)) == -1 && errno(*__errno()) != EAGAIN35)
183 fatal("imsg_read error");
184 if (n == 0)
185 shut = 1;
186 }
187 if (events & EV_WRITE0x04) {
188 if ((n = msgbuf_write(&ibuf->w)) == -1 && errno(*__errno()) != EAGAIN35)
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)for((idm) = ((&env->sc_idms)->tqh_first); (idm) != (
(void*)0); (idm) = ((idm)->idm_entry.tqe_next))
204 if (idm->idm_id == imsg.hdr.peerid)
205 break;
206 if (idm == NULL((void*)0)) {
207 log_warnx("IMSG_HOST_DNS with invalid peerID");
208 break;
209 }
210 if (!TAILQ_EMPTY(&idm->idm_addr)(((&idm->idm_addr)->tqh_first) == ((void*)0))) {
211 log_warnx("IMSG_HOST_DNS but addrs set!");
212 break;
213 }
214
215 dlen = imsg.hdr.len - IMSG_HEADER_SIZEsizeof(struct imsg_hdr);
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((void*)0))
224 fatal(NULL((void*)0));
225 memcpy(&h->ss, data, sizeof(h->ss));
226 TAILQ_INSERT_HEAD(&idm->idm_addr, h, next)do { if (((h)->next.tqe_next = (&idm->idm_addr)->
tqh_first) != ((void*)0)) (&idm->idm_addr)->tqh_first
->next.tqe_prev = &(h)->next.tqe_next; else (&idm
->idm_addr)->tqh_last = &(h)->next.tqe_next; (&
idm->idm_addr)->tqh_first = (h); (h)->next.tqe_prev =
&(&idm->idm_addr)->tqh_first; } while (0);
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)for((idm) = ((&env->sc_idms)->tqh_first); (idm) != (
(void*)0); (idm) = ((idm)->idm_entry.tqe_next)) {
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((void*)0), 0);
253
254done:
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((void*)0));
261 }
262}
263
264void
265client_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_READ0x02 | EV_WRITE0x04)) == 0)
275 fatalx("unknown event");
276
277 if (events & EV_READ0x02) {
278 if ((n = imsg_read(ibuf)) == -1 && errno(*__errno()) != EAGAIN35)
279 fatal("imsg_read error");
280 if (n == 0)
281 shut = 1;
282 }
283 if (events & EV_WRITE0x04) {
284 if ((n = msgbuf_write(&ibuf->w)) == -1 && errno(*__errno()) != EAGAIN35)
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_CONFIGURING0x00200000) {
302 log_warnx("configuration already in progress");
303 break;
304 }
305 memcpy(&params, imsg.data, sizeof(params));
306 log_debug("configuration starting");
307 env->sc_flags |= F_CONFIGURING0x00200000;
308 purge_config(env);
309 memcpy(&env->sc_conf_tv, &params.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_CONFIGURING0x00200000))
318 break;
319 if ((idm = calloc(1, sizeof(*idm))) == NULL((void*)0))
320 fatal(NULL((void*)0));
321 memcpy(idm, imsg.data, sizeof(*idm));
322 idm->idm_env = env;
323 TAILQ_INSERT_TAIL(&env->sc_idms, idm, idm_entry)do { (idm)->idm_entry.tqe_next = ((void*)0); (idm)->idm_entry
.tqe_prev = (&env->sc_idms)->tqh_last; *(&env->
sc_idms)->tqh_last = (idm); (&env->sc_idms)->tqh_last
= &(idm)->idm_entry.tqe_next; } while (0);
324 break;
325 }
326 case IMSG_CONF_END:
327 env->sc_flags &= ~F_CONFIGURING0x00200000;
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
340done:
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((void*)0));
347 }
348}
349
350void
351client_shutdown(void)
352{
353 log_info("ldap client exiting");
354 _exit(0);
355}
356
357pid_t
358ldapclient(int pipe_main2client[2])
359{
360 pid_t pid, dns_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)do { (&env.sc_idms)->tqh_first = ((void*)0); (&env
.sc_idms)->tqh_last = &(&env.sc_idms)->tqh_first
; } while (0);
379
380 if ((pw = getpwnam(YPLDAP_USER"_ypldap")) == NULL((void*)0))
381 fatal("getpwnam");
382
383 if (socketpair(AF_UNIX1, SOCK_STREAM1, PF_UNSPEC0, pipe_dns) == -1)
384 fatal("socketpair");
385 dns_pid = 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((void*)0)) == -1)
410 fatal("pledge");
411
412 event_init();
413 signal(SIGPIPE13, SIG_IGN(void (*)(int))1);
414 signal_set(&ev_sigint, SIGINT, client_sig_handler, NULL)event_set(&ev_sigint, 2, 0x08|0x10, client_sig_handler, (
(void*)0));
415 signal_set(&ev_sigterm, SIGTERM, client_sig_handler, NULL)event_set(&ev_sigterm, 15, 0x08|0x10, client_sig_handler,
((void*)0));
416 signal_add(&ev_sigint, NULL)event_add(&ev_sigint, ((void*)0));
417 signal_add(&ev_sigterm, NULL)event_add(&ev_sigterm, ((void*)0));
418
419 close(pipe_main2client[0]);
420 if ((env.sc_iev = calloc(1, sizeof(*env.sc_iev))) == NULL((void*)0))
421 fatal(NULL((void*)0));
422 if ((env.sc_iev_dns = calloc(1, sizeof(*env.sc_iev_dns))) == NULL((void*)0))
423 fatal(NULL((void*)0));
424
425 env.sc_iev->events = EV_READ0x02;
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((void*)0));
432
433 env.sc_iev_dns->events = EV_READ0x02;
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((void*)0));
440
441 event_dispatch();
442 client_shutdown();
443
444 return (0);
445
446}
447
448int
449client_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)(1<<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_UID2) {
467 ir->ir_key.ik_uid = strtonum(
468 idm->idm_attrs[i], 0,
469 UID_MAX(2147483647 *2U +1U), NULL((void*)0));
470 } else if (i == ATTR_GR_GID12) {
471 ir->ir_key.ik_gid = strtonum(
472 idm->idm_attrs[i], 0,
473 GID_MAX(2147483647 *2U +1U), NULL((void*)0));
474 }
475 } else if (idm->idm_list & F_LIST(i)(1<<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_UID2) {
501 ir->ir_key.ik_uid = strtonum(
502 ldap_attrs->str[0].ostr_val, 0, UID_MAX(2147483647 *2U +1U),
503 NULL((void*)0));
504 } else if (i == ATTR_GR_GID12) {
505 ir->ir_key.ik_uid = strtonum(
506 ldap_attrs->str[0].ostr_val, 0, GID_MAX(2147483647 *2U +1U),
507 NULL((void*)0));
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
521int
522client_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((void*)0);
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((void*)0)) {
545 aldap_freepage(pg);
546 pg = NULL((void*)0);
547 }
548
549 while ((m = aldap_parse(al)) != NULL((void*)0)) {
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((void*)0) && m->page->cookie_len != 0)
556 pg = m->page;
557 else
558 pg = NULL((void*)0);
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((void*)0));
575
576 return (0);
577
578fail:
579 aldap_freemsg(m);
580 if (pg != NULL((void*)0)) {
581 aldap_freepage(pg);
582 }
583
584 return (-1);
585}
586
587int
588client_try_idm(struct env *env, struct idm *idm)
589{
590 const char *where;
591 char *attrs[ATTR_MAX10+1];
592 int i, j;
593 struct aldap_message *m;
594 struct aldap *al;
595
596 where = "connect";
Value stored to 'where' is never read
597 if ((al = client_aldap_open(&idm->idm_addr)) == NULL((void*)0))
598 return (-1);
599
600 if (idm->idm_flags & F_STARTTLS0x00800000) {
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((void*)0))
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_STARTTLS0x00800000 | F_SSL0x00100000)) {
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_debug("tls failed: %s", err);
629 goto bad;
630 }
631 }
632
633 if (idm->idm_flags & F_NEEDAUTH0x00400000) {
634 where = "binding";
635 if (aldap_bind(al, idm->idm_binddn, idm->idm_bindcred) == -1)
636 goto bad;
637
638 where = "parsing";
639 if ((m = aldap_parse(al)) == NULL((void*)0))
640 goto bad;
641 where = "verifying msgid";
642 if (al->msgid != m->msgid) {
643 aldap_freemsg(m);
644 goto bad;
645 }
646 aldap_freemsg(m);
647 }
648
649 memset(attrs, 0, sizeof(attrs));
650 for (i = 0, j = 0; i < ATTR_MAX10; i++) {
651 if (idm->idm_flags & F_FIXED_ATTR(i)(1<<i))
652 continue;
653 attrs[j++] = idm->idm_attrs[i];
654 }
655 attrs[j] = NULL((void*)0);
656
657 /*
658 * build password line.
659 */
660 where = "search";
661 log_debug("searching password entries");
662 if (client_search_idm(env, idm, al, attrs,
663 idm->idm_filters[FILTER_USER1], 0, ATTR_MAX10, IMSG_PW_ENTRY) == -1)
664 goto bad;
665
666 memset(attrs, 0, sizeof(attrs));
667 for (i = ATTR_GR_MIN10, j = 0; i < ATTR_GR_MAX14; i++) {
668 if (idm->idm_flags & F_FIXED_ATTR(i)(1<<i))
669 continue;
670 attrs[j++] = idm->idm_attrs[i];
671 }
672 attrs[j] = NULL((void*)0);
673
674 /*
675 * build group line.
676 */
677 where = "search";
678 log_debug("searching group entries");
679 if (client_search_idm(env, idm, al, attrs,
680 idm->idm_filters[FILTER_GROUP0], ATTR_GR_MIN10, ATTR_GR_MAX14,
681 IMSG_GRP_ENTRY) == -1)
682 goto bad;
683
684 aldap_close(al);
685
686 idm->idm_state = STATE_LDAP_DONE;
687
688 return (0);
689bad:
690 aldap_close(al);
691 log_debug("directory %s errored out in %s", idm->idm_name, where);
692 return (-1);
693}
694
695void
696client_periodic_update(int fd, short event, void *p)
697{
698 struct env *env = p;
699
700 struct idm *idm;
701 int fail_cnt = 0;
702
703 /* If LDAP isn't finished, notify the master process to trash the
704 * update. */
705 TAILQ_FOREACH(idm, &env->sc_idms, idm_entry)for((idm) = ((&env->sc_idms)->tqh_first); (idm) != (
(void*)0); (idm) = ((idm)->idm_entry.tqe_next)) {
706 if (idm->idm_state < STATE_LDAP_DONE)
707 fail_cnt++;
708
709 idm->idm_state = STATE_NONE;
710
711 client_addr_free(idm);
712 }
713 if (fail_cnt > 0) {
714 log_debug("trash the update");
715 imsg_compose_event(env->sc_iev, IMSG_TRASH_UPDATE, 0, 0, -1,
716 NULL((void*)0), 0);
717 }
718
719 client_configure(env);
720}
721
722void
723client_configure(struct env *env)
724{
725 struct timeval tv;
726 struct idm *idm;
727 u_int16_t dlen;
728
729 log_debug("connecting to directories");
730
731 imsg_compose_event(env->sc_iev, IMSG_START_UPDATE, 0, 0, -1, NULL((void*)0), 0);
732
733 /* Start the DNS lookups */
734 TAILQ_FOREACH(idm, &env->sc_idms, idm_entry)for((idm) = ((&env->sc_idms)->tqh_first); (idm) != (
(void*)0); (idm) = ((idm)->idm_entry.tqe_next)) {
735 dlen = strlen(idm->idm_name) + 1;
736 imsg_compose_event(env->sc_iev_dns, IMSG_HOST_DNS, idm->idm_id,
737 0, -1, idm->idm_name, dlen);
738 }
739
740 tv.tv_sec = env->sc_conf_tv.tv_sec;
741 tv.tv_usec = env->sc_conf_tv.tv_usec;
742 evtimer_set(&env->sc_conf_ev, client_periodic_update, env)event_set(&env->sc_conf_ev, -1, 0, client_periodic_update
, env);
743 evtimer_add(&env->sc_conf_ev, &tv)event_add(&env->sc_conf_ev, &tv);
744}