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s3:test: add the failure blackbox test as samba3.blackbox.failure
[Samba/gbeck.git] / source3 / lib / tldap.c
blob1dd380f25962db53538e0740271e891069cee2bd
1 /*
2 Unix SMB/CIFS implementation.
3 Infrastructure for async ldap client requests
4 Copyright (C) Volker Lendecke 2009
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20 #include "includes.h"
21 #include "tldap.h"
22
23 static int tldap_simple_recv(struct tevent_req *req);
24
25 bool tevent_req_is_ldap_error(struct tevent_req *req, int *perr)
26 {
27 enum tevent_req_state state;
28 uint64_t err;
29
30 if (!tevent_req_is_error(req, &state, &err)) {
31 return false;
32 }
33 switch (state) {
34 case TEVENT_REQ_TIMED_OUT:
35 *perr = TLDAP_TIMEOUT;
36 break;
37 case TEVENT_REQ_NO_MEMORY:
38 *perr = TLDAP_NO_MEMORY;
39 break;
40 case TEVENT_REQ_USER_ERROR:
41 *perr = err;
42 break;
43 default:
44 *perr = TLDAP_OPERATIONS_ERROR;
45 break;
46 }
47 return true;
48 }
49
50 struct tldap_ctx_attribute {
51 char *name;
52 void *ptr;
53 };
54
55 struct tldap_context {
56 int ld_version;
57 int ld_deref;
58 int ld_sizelimit;
59 int ld_timelimit;
60 struct tstream_context *conn;
61 bool server_down;
62 int msgid;
63 struct tevent_queue *outgoing;
64 struct tevent_req **pending;
65
66 /* For the sync wrappers we need something like get_last_error... */
67 struct tldap_message *last_msg;
68
69 /* debug */
70 void (*log_fn)(void *context, enum tldap_debug_level level,
71 const char *fmt, va_list ap);
72 void *log_private;
73
74 struct tldap_ctx_attribute *ctx_attrs;
75 };
76
77 struct tldap_message {
78 struct asn1_data *data;
79 uint8_t *inbuf;
80 int type;
81 int id;
82
83 /* RESULT_ENTRY */
84 char *dn;
85 struct tldap_attribute *attribs;
86
87 /* Error data sent by the server */
88 int lderr;
89 char *res_matcheddn;
90 char *res_diagnosticmessage;
91 char *res_referral;
92 struct tldap_control *res_sctrls;
93
94 /* Controls sent by the server */
95 struct tldap_control *ctrls;
96 };
97
98 void tldap_set_debug(struct tldap_context *ld,
99 void (*log_fn)(void *log_private,
100 enum tldap_debug_level level,
101 const char *fmt,
102 va_list ap) PRINTF_ATTRIBUTE(3,0),
103 void *log_private)
104 {
105 ld->log_fn = log_fn;
106 ld->log_private = log_private;
107 }
108
109 static void tldap_debug(struct tldap_context *ld,
110 enum tldap_debug_level level,
111 const char *fmt, ...)
112 {
113 va_list ap;
114 if (!ld) {
115 return;
116 }
117 if (ld->log_fn == NULL) {
118 return;
119 }
120 va_start(ap, fmt);
121 ld->log_fn(ld->log_private, level, fmt, ap);
122 va_end(ap);
123 }
124
125 static int tldap_next_msgid(struct tldap_context *ld)
126 {
127 int result;
128
129 result = ld->msgid++;
130 if (ld->msgid == 2147483647) {
131 ld->msgid = 1;
132 }
133 return result;
134 }
135
136 struct tldap_context *tldap_context_create(TALLOC_CTX *mem_ctx, int fd)
137 {
138 struct tldap_context *ctx;
139 int ret;
140
141 ctx = talloc_zero(mem_ctx, struct tldap_context);
142 if (ctx == NULL) {
143 return NULL;
144 }
145 ret = tstream_bsd_existing_socket(ctx, fd, &ctx->conn);
146 if (ret == -1) {
147 TALLOC_FREE(ctx);
148 return NULL;
149 }
150 ctx->msgid = 1;
151 ctx->ld_version = 3;
152 ctx->outgoing = tevent_queue_create(ctx, "tldap_outgoing");
153 if (ctx->outgoing == NULL) {
154 TALLOC_FREE(ctx);
155 return NULL;
156 }
157 return ctx;
158 }
159
160 bool tldap_connection_ok(struct tldap_context *ld)
161 {
162 if (ld == NULL) {
163 return false;
164 }
165 return !ld->server_down;
166 }
167
168 static struct tldap_ctx_attribute *tldap_context_findattr(
169 struct tldap_context *ld, const char *name)
170 {
171 int i, num_attrs;
172
173 num_attrs = talloc_array_length(ld->ctx_attrs);
174
175 for (i=0; i<num_attrs; i++) {
176 if (strcmp(ld->ctx_attrs[i].name, name) == 0) {
177 return &ld->ctx_attrs[i];
178 }
179 }
180 return NULL;
181 }
182
183 bool tldap_context_setattr(struct tldap_context *ld,
184 const char *name, const void *_pptr)
185 {
186 struct tldap_ctx_attribute *tmp, *attr;
187 char *tmpname;
188 int num_attrs;
189 void **pptr = (void **)_pptr;
190
191 attr = tldap_context_findattr(ld, name);
192 if (attr != NULL) {
193 /*
194 * We don't actually delete attrs, we don't expect tons of
195 * attributes being shuffled around.
196 */
197 TALLOC_FREE(attr->ptr);
198 if (*pptr != NULL) {
199 attr->ptr = talloc_move(ld->ctx_attrs, pptr);
200 *pptr = NULL;
201 }
202 return true;
203 }
204
205 tmpname = talloc_strdup(ld, name);
206 if (tmpname == NULL) {
207 return false;
208 }
209
210 num_attrs = talloc_array_length(ld->ctx_attrs);
211
212 tmp = talloc_realloc(ld, ld->ctx_attrs, struct tldap_ctx_attribute,
213 num_attrs+1);
214 if (tmp == NULL) {
215 TALLOC_FREE(tmpname);
216 return false;
217 }
218 tmp[num_attrs].name = talloc_move(tmp, &tmpname);
219 if (*pptr != NULL) {
220 tmp[num_attrs].ptr = talloc_move(tmp, pptr);
221 } else {
222 tmp[num_attrs].ptr = NULL;
223 }
224 *pptr = NULL;
225 ld->ctx_attrs = tmp;
226 return true;
227 }
228
229 void *tldap_context_getattr(struct tldap_context *ld, const char *name)
230 {
231 struct tldap_ctx_attribute *attr = tldap_context_findattr(ld, name);
232
233 if (attr == NULL) {
234 return NULL;
235 }
236 return attr->ptr;
237 }
238
239 struct read_ldap_state {
240 uint8_t *buf;
241 bool done;
242 };
243
244 static ssize_t read_ldap_more(uint8_t *buf, size_t buflen, void *private_data);
245 static void read_ldap_done(struct tevent_req *subreq);
246
247 static struct tevent_req *read_ldap_send(TALLOC_CTX *mem_ctx,
248 struct tevent_context *ev,
249 struct tstream_context *conn)
250 {
251 struct tevent_req *req, *subreq;
252 struct read_ldap_state *state;
253
254 req = tevent_req_create(mem_ctx, &state, struct read_ldap_state);
255 if (req == NULL) {
256 return NULL;
257 }
258 state->done = false;
259
260 subreq = tstream_read_packet_send(state, ev, conn, 2, read_ldap_more,
261 state);
262 if (tevent_req_nomem(subreq, req)) {
263 return tevent_req_post(req, ev);
264 }
265 tevent_req_set_callback(subreq, read_ldap_done, req);
266 return req;
267 }
268
269 static ssize_t read_ldap_more(uint8_t *buf, size_t buflen, void *private_data)
270 {
271 struct read_ldap_state *state = talloc_get_type_abort(
272 private_data, struct read_ldap_state);
273 size_t len;
274 int i, lensize;
275
276 if (state->done) {
277 /* We've been here, we're done */
278 return 0;
279 }
280
281 /*
282 * From ldap.h: LDAP_TAG_MESSAGE is 0x30
283 */
284 if (buf[0] != 0x30) {
285 return -1;
286 }
287
288 len = buf[1];
289 if ((len & 0x80) == 0) {
290 state->done = true;
291 return len;
292 }
293
294 lensize = (len & 0x7f);
295 len = 0;
296
297 if (buflen == 2) {
298 /* Please get us the full length */
299 return lensize;
300 }
301 if (buflen > 2 + lensize) {
302 state->done = true;
303 return 0;
304 }
305 if (buflen != 2 + lensize) {
306 return -1;
307 }
308
309 for (i=0; i<lensize; i++) {
310 len = (len << 8) | buf[2+i];
311 }
312 return len;
313 }
314
315 static void read_ldap_done(struct tevent_req *subreq)
316 {
317 struct tevent_req *req = tevent_req_callback_data(
318 subreq, struct tevent_req);
319 struct read_ldap_state *state = tevent_req_data(
320 req, struct read_ldap_state);
321 ssize_t nread;
322 int err;
323
324 nread = tstream_read_packet_recv(subreq, state, &state->buf, &err);
325 TALLOC_FREE(subreq);
326 if (nread == -1) {
327 tevent_req_error(req, err);
328 return;
329 }
330 tevent_req_done(req);
331 }
332
333 static ssize_t read_ldap_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
334 uint8_t **pbuf, int *perrno)
335 {
336 struct read_ldap_state *state = tevent_req_data(
337 req, struct read_ldap_state);
338
339 if (tevent_req_is_unix_error(req, perrno)) {
340 return -1;
341 }
342 *pbuf = talloc_move(mem_ctx, &state->buf);
343 return talloc_get_size(*pbuf);
344 }
345
346 struct tldap_msg_state {
347 struct tldap_context *ld;
348 struct tevent_context *ev;
349 int id;
350 struct iovec iov;
351
352 struct asn1_data *data;
353 uint8_t *inbuf;
354 };
355
356 static void tldap_push_controls(struct asn1_data *data,
357 struct tldap_control *sctrls,
358 int num_sctrls)
359 {
360 int i;
361
362 if ((sctrls == NULL) || (num_sctrls == 0)) {
363 return;
364 }
365
366 asn1_push_tag(data, ASN1_CONTEXT(0));
367
368 for (i=0; i<num_sctrls; i++) {
369 struct tldap_control *c = &sctrls[i];
370 asn1_push_tag(data, ASN1_SEQUENCE(0));
371 asn1_write_OctetString(data, c->oid, strlen(c->oid));
372 if (c->critical) {
373 asn1_write_BOOLEAN(data, true);
374 }
375 if (c->value.data != NULL) {
376 asn1_write_OctetString(data, c->value.data,
377 c->value.length);
378 }
379 asn1_pop_tag(data); /* ASN1_SEQUENCE(0) */
380 }
381
382 asn1_pop_tag(data); /* ASN1_CONTEXT(0) */
383 }
384
385 static void tldap_msg_sent(struct tevent_req *subreq);
386 static void tldap_msg_received(struct tevent_req *subreq);
387
388 static struct tevent_req *tldap_msg_send(TALLOC_CTX *mem_ctx,
389 struct tevent_context *ev,
390 struct tldap_context *ld,
391 int id, struct asn1_data *data,
392 struct tldap_control *sctrls,
393 int num_sctrls)
394 {
395 struct tevent_req *req, *subreq;
396 struct tldap_msg_state *state;
397 DATA_BLOB blob;
398
399 tldap_debug(ld, TLDAP_DEBUG_TRACE, "tldap_msg_send: sending msg %d\n",
400 id);
401
402 req = tevent_req_create(mem_ctx, &state, struct tldap_msg_state);
403 if (req == NULL) {
404 return NULL;
405 }
406 state->ld = ld;
407 state->ev = ev;
408 state->id = id;
409
410 if (state->ld->server_down) {
411 tevent_req_error(req, TLDAP_SERVER_DOWN);
412 return tevent_req_post(req, ev);
413 }
414
415 tldap_push_controls(data, sctrls, num_sctrls);
416
417 asn1_pop_tag(data);
418
419 if (!asn1_blob(data, &blob)) {
420 tevent_req_error(req, TLDAP_ENCODING_ERROR);
421 return tevent_req_post(req, ev);
422 }
423
424 state->iov.iov_base = (void *)blob.data;
425 state->iov.iov_len = blob.length;
426
427 subreq = tstream_writev_queue_send(state, ev, ld->conn, ld->outgoing,
428 &state->iov, 1);
429 if (tevent_req_nomem(subreq, req)) {
430 return tevent_req_post(req, ev);
431 }
432 tevent_req_set_callback(subreq, tldap_msg_sent, req);
433 return req;
434 }
435
436 static void tldap_msg_unset_pending(struct tevent_req *req)
437 {
438 struct tldap_msg_state *state = tevent_req_data(
439 req, struct tldap_msg_state);
440 struct tldap_context *ld = state->ld;
441 int num_pending = talloc_array_length(ld->pending);
442 int i;
443
444 if (num_pending == 1) {
445 TALLOC_FREE(ld->pending);
446 return;
447 }
448
449 for (i=0; i<num_pending; i++) {
450 if (req == ld->pending[i]) {
451 break;
452 }
453 }
454 if (i == num_pending) {
455 /*
456 * Something's seriously broken. Just returning here is the
457 * right thing nevertheless, the point of this routine is to
458 * remove ourselves from cli->pending.
459 */
460 return;
461 }
462
463 /*
464 * Remove ourselves from the cli->pending array
465 */
466 if (num_pending > 1) {
467 ld->pending[i] = ld->pending[num_pending-1];
468 }
469
470 /*
471 * No NULL check here, we're shrinking by sizeof(void *), and
472 * talloc_realloc just adjusts the size for this.
473 */
474 ld->pending = talloc_realloc(NULL, ld->pending, struct tevent_req *,
475 num_pending - 1);
476 return;
477 }
478
479 static int tldap_msg_destructor(struct tevent_req *req)
480 {
481 tldap_msg_unset_pending(req);
482 return 0;
483 }
484
485 static bool tldap_msg_set_pending(struct tevent_req *req)
486 {
487 struct tldap_msg_state *state = tevent_req_data(
488 req, struct tldap_msg_state);
489 struct tldap_context *ld;
490 struct tevent_req **pending;
491 int num_pending;
492 struct tevent_req *subreq;
493
494 ld = state->ld;
495 num_pending = talloc_array_length(ld->pending);
496
497 pending = talloc_realloc(ld, ld->pending, struct tevent_req *,
498 num_pending+1);
499 if (pending == NULL) {
500 return false;
501 }
502 pending[num_pending] = req;
503 ld->pending = pending;
504 talloc_set_destructor(req, tldap_msg_destructor);
505
506 if (num_pending > 0) {
507 return true;
508 }
509
510 /*
511 * We're the first one, add the read_ldap request that waits for the
512 * answer from the server
513 */
514 subreq = read_ldap_send(ld->pending, state->ev, ld->conn);
515 if (subreq == NULL) {
516 tldap_msg_unset_pending(req);
517 return false;
518 }
519 tevent_req_set_callback(subreq, tldap_msg_received, ld);
520 return true;
521 }
522
523 static void tldap_msg_sent(struct tevent_req *subreq)
524 {
525 struct tevent_req *req = tevent_req_callback_data(
526 subreq, struct tevent_req);
527 struct tldap_msg_state *state = tevent_req_data(
528 req, struct tldap_msg_state);
529 ssize_t nwritten;
530 int err;
531
532 nwritten = tstream_writev_queue_recv(subreq, &err);
533 TALLOC_FREE(subreq);
534 if (nwritten == -1) {
535 state->ld->server_down = true;
536 tevent_req_error(req, TLDAP_SERVER_DOWN);
537 return;
538 }
539
540 if (!tldap_msg_set_pending(req)) {
541 tevent_req_nomem(NULL, req);
542 return;
543 }
544 }
545
546 static int tldap_msg_msgid(struct tevent_req *req)
547 {
548 struct tldap_msg_state *state = tevent_req_data(
549 req, struct tldap_msg_state);
550
551 return state->id;
552 }
553
554 static void tldap_msg_received(struct tevent_req *subreq)
555 {
556 struct tldap_context *ld = tevent_req_callback_data(
557 subreq, struct tldap_context);
558 struct tevent_req *req;
559 struct tldap_msg_state *state;
560 struct tevent_context *ev;
561 struct asn1_data *data;
562 uint8_t *inbuf;
563 ssize_t received;
564 size_t num_pending;
565 int i, err, status;
566 int id;
567 uint8_t type;
568 bool ok;
569
570 received = read_ldap_recv(subreq, talloc_tos(), &inbuf, &err);
571 TALLOC_FREE(subreq);
572 if (received == -1) {
573 status = TLDAP_SERVER_DOWN;
574 goto fail;
575 }
576
577 data = asn1_init(talloc_tos());
578 if (data == NULL) {
579 status = TLDAP_NO_MEMORY;
580 goto fail;
581 }
582 asn1_load_nocopy(data, inbuf, received);
583
584 ok = true;
585 ok &= asn1_start_tag(data, ASN1_SEQUENCE(0));
586 ok &= asn1_read_Integer(data, &id);
587 ok &= asn1_peek_uint8(data, &type);
588
589 if (!ok) {
590 status = TLDAP_PROTOCOL_ERROR;
591 goto fail;
592 }
593
594 tldap_debug(ld, TLDAP_DEBUG_TRACE, "tldap_msg_received: got msg %d "
595 "type %d\n", id, (int)type);
596
597 num_pending = talloc_array_length(ld->pending);
598
599 for (i=0; i<num_pending; i++) {
600 if (id == tldap_msg_msgid(ld->pending[i])) {
601 break;
602 }
603 }
604 if (i == num_pending) {
605 /* Dump unexpected reply */
606 tldap_debug(ld, TLDAP_DEBUG_WARNING, "tldap_msg_received: "
607 "No request pending for msg %d\n", id);
608 TALLOC_FREE(data);
609 TALLOC_FREE(inbuf);
610 goto done;
611 }
612
613 req = ld->pending[i];
614 state = tevent_req_data(req, struct tldap_msg_state);
615
616 state->inbuf = talloc_move(state, &inbuf);
617 state->data = talloc_move(state, &data);
618
619 ev = state->ev;
620
621 talloc_set_destructor(req, NULL);
622 tldap_msg_unset_pending(req);
623 num_pending = talloc_array_length(ld->pending);
624
625 tevent_req_done(req);
626
627 done:
628 if (num_pending == 0) {
629 return;
630 }
631 if (talloc_array_length(ld->pending) > num_pending) {
632 /*
633 * The callback functions called from tevent_req_done() above
634 * have put something on the pending queue. We don't have to
635 * trigger the read_ldap_send(), tldap_msg_set_pending() has
636 * done it for us already.
637 */
638 return;
639 }
640
641 state = tevent_req_data(ld->pending[0], struct tldap_msg_state);
642 subreq = read_ldap_send(ld->pending, state->ev, ld->conn);
643 if (subreq == NULL) {
644 status = TLDAP_NO_MEMORY;
645 goto fail;
646 }
647 tevent_req_set_callback(subreq, tldap_msg_received, ld);
648 return;
649
650 fail:
651 while (talloc_array_length(ld->pending) > 0) {
652 req = ld->pending[0];
653 talloc_set_destructor(req, NULL);
654 tldap_msg_destructor(req);
655 tevent_req_error(req, status);
656 }
657 }
658
659 static int tldap_msg_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
660 struct tldap_message **pmsg)
661 {
662 struct tldap_msg_state *state = tevent_req_data(
663 req, struct tldap_msg_state);
664 struct tldap_message *msg;
665 int err;
666 uint8_t msgtype;
667
668 if (tevent_req_is_ldap_error(req, &err)) {
669 return err;
670 }
671
672 if (!asn1_peek_uint8(state->data, &msgtype)) {
673 return TLDAP_PROTOCOL_ERROR;
674 }
675
676 if (pmsg == NULL) {
677 return TLDAP_SUCCESS;
678 }
679
680 msg = talloc_zero(mem_ctx, struct tldap_message);
681 if (msg == NULL) {
682 return TLDAP_NO_MEMORY;
683 }
684 msg->id = state->id;
685
686 msg->inbuf = talloc_move(msg, &state->inbuf);
687 msg->data = talloc_move(msg, &state->data);
688 msg->type = msgtype;
689
690 *pmsg = msg;
691 return TLDAP_SUCCESS;
692 }
693
694 struct tldap_req_state {
695 int id;
696 struct asn1_data *out;
697 struct tldap_message *result;
698 };
699
700 static struct tevent_req *tldap_req_create(TALLOC_CTX *mem_ctx,
701 struct tldap_context *ld,
702 struct tldap_req_state **pstate)
703 {
704 struct tevent_req *req;
705 struct tldap_req_state *state;
706
707 req = tevent_req_create(mem_ctx, &state, struct tldap_req_state);
708 if (req == NULL) {
709 return NULL;
710 }
711 ZERO_STRUCTP(state);
712 state->out = asn1_init(state);
713 if (state->out == NULL) {
714 TALLOC_FREE(req);
715 return NULL;
716 }
717 state->result = NULL;
718 state->id = tldap_next_msgid(ld);
719
720 asn1_push_tag(state->out, ASN1_SEQUENCE(0));
721 asn1_write_Integer(state->out, state->id);
722
723 *pstate = state;
724 return req;
725 }
726
727 static void tldap_save_msg(struct tldap_context *ld, struct tevent_req *req)
728 {
729 struct tldap_req_state *state = tevent_req_data(
730 req, struct tldap_req_state);
731
732 TALLOC_FREE(ld->last_msg);
733 ld->last_msg = talloc_move(ld, &state->result);
734 }
735
736 static char *blob2string_talloc(TALLOC_CTX *mem_ctx, DATA_BLOB blob)
737 {
738 char *result = talloc_array(mem_ctx, char, blob.length+1);
739
740 if (result == NULL) {
741 return NULL;
742 }
743
744 memcpy(result, blob.data, blob.length);
745 result[blob.length] = '\0';
746 return result;
747 }
748
749 static bool asn1_read_OctetString_talloc(TALLOC_CTX *mem_ctx,
750 struct asn1_data *data,
751 char **presult)
752 {
753 DATA_BLOB string;
754 char *result;
755 if (!asn1_read_OctetString(data, mem_ctx, &string))
756 return false;
757
758 result = blob2string_talloc(mem_ctx, string);
759
760 data_blob_free(&string);
761
762 if (result == NULL) {
763 return false;
764 }
765 *presult = result;
766 return true;
767 }
768
769 static bool tldap_decode_controls(struct tldap_req_state *state);
770
771 static bool tldap_decode_response(struct tldap_req_state *state)
772 {
773 struct asn1_data *data = state->result->data;
774 struct tldap_message *msg = state->result;
775 bool ok = true;
776
777 ok &= asn1_read_enumerated(data, &msg->lderr);
778 ok &= asn1_read_OctetString_talloc(msg, data, &msg->res_matcheddn);
779 ok &= asn1_read_OctetString_talloc(msg, data,
780 &msg->res_diagnosticmessage);
781 if (asn1_peek_tag(data, ASN1_CONTEXT(3))) {
782 ok &= asn1_start_tag(data, ASN1_CONTEXT(3));
783 ok &= asn1_read_OctetString_talloc(msg, data,
784 &msg->res_referral);
785 ok &= asn1_end_tag(data);
786 } else {
787 msg->res_referral = NULL;
788 }
789
790 return ok;
791 }
792
793 static void tldap_sasl_bind_done(struct tevent_req *subreq);
794
795 struct tevent_req *tldap_sasl_bind_send(TALLOC_CTX *mem_ctx,
796 struct tevent_context *ev,
797 struct tldap_context *ld,
798 const char *dn,
799 const char *mechanism,
800 DATA_BLOB *creds,
801 struct tldap_control *sctrls,
802 int num_sctrls,
803 struct tldap_control *cctrls,
804 int num_cctrls)
805 {
806 struct tevent_req *req, *subreq;
807 struct tldap_req_state *state;
808
809 req = tldap_req_create(mem_ctx, ld, &state);
810 if (req == NULL) {
811 return NULL;
812 }
813
814 if (dn == NULL) {
815 dn = "";
816 }
817
818 asn1_push_tag(state->out, TLDAP_REQ_BIND);
819 asn1_write_Integer(state->out, ld->ld_version);
820 asn1_write_OctetString(state->out, dn, (dn != NULL) ? strlen(dn) : 0);
821
822 if (mechanism == NULL) {
823 asn1_push_tag(state->out, ASN1_CONTEXT_SIMPLE(0));
824 asn1_write(state->out, creds->data, creds->length);
825 asn1_pop_tag(state->out);
826 } else {
827 asn1_push_tag(state->out, ASN1_CONTEXT(3));
828 asn1_write_OctetString(state->out, mechanism,
829 strlen(mechanism));
830 if ((creds != NULL) && (creds->data != NULL)) {
831 asn1_write_OctetString(state->out, creds->data,
832 creds->length);
833 }
834 asn1_pop_tag(state->out);
835 }
836
837 if (!asn1_pop_tag(state->out)) {
838 tevent_req_error(req, TLDAP_ENCODING_ERROR);
839 return tevent_req_post(req, ev);
840 }
841
842 subreq = tldap_msg_send(state, ev, ld, state->id, state->out,
843 sctrls, num_sctrls);
844 if (tevent_req_nomem(subreq, req)) {
845 return tevent_req_post(req, ev);
846 }
847 tevent_req_set_callback(subreq, tldap_sasl_bind_done, req);
848 return req;
849 }
850
851 static void tldap_sasl_bind_done(struct tevent_req *subreq)
852 {
853 struct tevent_req *req = tevent_req_callback_data(
854 subreq, struct tevent_req);
855 struct tldap_req_state *state = tevent_req_data(
856 req, struct tldap_req_state);
857 int err;
858
859 err = tldap_msg_recv(subreq, state, &state->result);
860 TALLOC_FREE(subreq);
861 if (err != TLDAP_SUCCESS) {
862 tevent_req_error(req, err);
863 return;
864 }
865 if (state->result->type != TLDAP_RES_BIND) {
866 tevent_req_error(req, TLDAP_PROTOCOL_ERROR);
867 return;
868 }
869 if (!asn1_start_tag(state->result->data, state->result->type) ||
870 !tldap_decode_response(state) ||
871 !asn1_end_tag(state->result->data)) {
872 tevent_req_error(req, TLDAP_DECODING_ERROR);
873 return;
874 }
875 /*
876 * TODO: pull the reply blob
877 */
878 if (state->result->lderr != TLDAP_SUCCESS) {
879 tevent_req_error(req, state->result->lderr);
880 return;
881 }
882 tevent_req_done(req);
883 }
884
885 int tldap_sasl_bind_recv(struct tevent_req *req)
886 {
887 return tldap_simple_recv(req);
888 }
889
890 int tldap_sasl_bind(struct tldap_context *ld,
891 const char *dn,
892 const char *mechanism,
893 DATA_BLOB *creds,
894 struct tldap_control *sctrls,
895 int num_sctrls,
896 struct tldap_control *cctrls,
897 int num_cctrls)
898 {
899 TALLOC_CTX *frame = talloc_stackframe();
900 struct tevent_context *ev;
901 struct tevent_req *req;
902 int result;
903
904 ev = event_context_init(frame);
905 if (ev == NULL) {
906 result = TLDAP_NO_MEMORY;
907 goto fail;
908 }
909
910 req = tldap_sasl_bind_send(frame, ev, ld, dn, mechanism, creds,
911 sctrls, num_sctrls, cctrls, num_cctrls);
912 if (req == NULL) {
913 result = TLDAP_NO_MEMORY;
914 goto fail;
915 }
916
917 if (!tevent_req_poll(req, ev)) {
918 result = TLDAP_OPERATIONS_ERROR;
919 goto fail;
920 }
921
922 result = tldap_sasl_bind_recv(req);
923 tldap_save_msg(ld, req);
924 fail:
925 TALLOC_FREE(frame);
926 return result;
927 }
928
929 struct tevent_req *tldap_simple_bind_send(TALLOC_CTX *mem_ctx,
930 struct tevent_context *ev,
931 struct tldap_context *ld,
932 const char *dn,
933 const char *passwd)
934 {
935 DATA_BLOB cred;
936
937 if (passwd != NULL) {
938 cred.data = (uint8_t *)passwd;
939 cred.length = strlen(passwd);
940 } else {
941 cred.data = (uint8_t *)"";
942 cred.length = 0;
943 }
944 return tldap_sasl_bind_send(mem_ctx, ev, ld, dn, NULL, &cred, NULL, 0,
945 NULL, 0);
946 }
947
948 int tldap_simple_bind_recv(struct tevent_req *req)
949 {
950 return tldap_sasl_bind_recv(req);
951 }
952
953 int tldap_simple_bind(struct tldap_context *ld, const char *dn,
954 const char *passwd)
955 {
956 DATA_BLOB cred;
957
958 if (passwd != NULL) {
959 cred.data = (uint8_t *)passwd;
960 cred.length = strlen(passwd);
961 } else {
962 cred.data = (uint8_t *)"";
963 cred.length = 0;
964 }
965 return tldap_sasl_bind(ld, dn, NULL, &cred, NULL, 0, NULL, 0);
966 }
967
968 /*****************************************************************************/
969
970 /* can't use isalpha() as only a strict set is valid for LDAP */
971
972 static bool tldap_is_alpha(char c)
973 {
974 return (((c >= 'a') && (c <= 'z')) || \
975 ((c >= 'A') && (c <= 'Z')));
976 }
977
978 static bool tldap_is_adh(char c)
979 {
980 return tldap_is_alpha(c) || isdigit(c) || (c == '-');
981 }
982
983 #define TLDAP_FILTER_AND ASN1_CONTEXT(0)
984 #define TLDAP_FILTER_OR ASN1_CONTEXT(1)
985 #define TLDAP_FILTER_NOT ASN1_CONTEXT(2)
986 #define TLDAP_FILTER_EQ ASN1_CONTEXT(3)
987 #define TLDAP_FILTER_SUB ASN1_CONTEXT(4)
988 #define TLDAP_FILTER_LE ASN1_CONTEXT(5)
989 #define TLDAP_FILTER_GE ASN1_CONTEXT(6)
990 #define TLDAP_FILTER_PRES ASN1_CONTEXT_SIMPLE(7)
991 #define TLDAP_FILTER_APX ASN1_CONTEXT(8)
992 #define TLDAP_FILTER_EXT ASN1_CONTEXT(9)
993
994 #define TLDAP_SUB_INI ASN1_CONTEXT_SIMPLE(0)
995 #define TLDAP_SUB_ANY ASN1_CONTEXT_SIMPLE(1)
996 #define TLDAP_SUB_FIN ASN1_CONTEXT_SIMPLE(2)
997
998
999 /* oid's should be numerical only in theory,
1000 * but apparently some broken servers may have alphanum aliases instead.
1001 * Do like openldap libraries and allow alphanum aliases for oids, but
1002 * do not allow Tagging options in that case.
1003 */
1004 static bool tldap_is_attrdesc(const char *s, int len, bool no_tagopts)
1005 {
1006 bool is_oid = false;
1007 bool dot = false;
1008 int i;
1009
1010 /* first char has stricter rules */
1011 if (isdigit(*s)) {
1012 is_oid = true;
1013 } else if (!tldap_is_alpha(*s)) {
1014 /* bad first char */
1015 return false;
1016 }
1017
1018 for (i = 1; i < len; i++) {
1019
1020 if (is_oid) {
1021 if (isdigit(s[i])) {
1022 dot = false;
1023 continue;
1024 }
1025 if (s[i] == '.') {
1026 if (dot) {
1027 /* malformed */
1028 return false;
1029 }
1030 dot = true;
1031 continue;
1032 }
1033 } else {
1034 if (tldap_is_adh(s[i])) {
1035 continue;
1036 }
1037 }
1038
1039 if (s[i] == ';') {
1040 if (no_tagopts) {
1041 /* no tagging options */
1042 return false;
1043 }
1044 if (dot) {
1045 /* malformed */
1046 return false;
1047 }
1048 if ((i + 1) == len) {
1049 /* malformed */
1050 return false;
1051 }
1052
1053 is_oid = false;
1054 continue;
1055 }
1056 }
1057
1058 if (dot) {
1059 /* malformed */
1060 return false;
1061 }
1062
1063 return true;
1064 }
1065
1066 /* this function copies the value until the closing parenthesis is found. */
1067 static char *tldap_get_val(TALLOC_CTX *memctx,
1068 const char *value, const char **_s)
1069 {
1070 const char *s = value;
1071
1072 /* find terminator */
1073 while (*s) {
1074 s = strchr(s, ')');
1075 if (s && (*(s - 1) == '\\')) {
1076 continue;
1077 }
1078 break;
1079 }
1080 if (!s || !(*s == ')')) {
1081 /* malformed filter */
1082 return NULL;
1083 }
1084
1085 *_s = s;
1086
1087 return talloc_strndup(memctx, value, s - value);
1088 }
1089
1090 static int tldap_hex2char(const char *x)
1091 {
1092 if (isxdigit(x[0]) && isxdigit(x[1])) {
1093 const char h1 = x[0], h2 = x[1];
1094 int c = 0;
1095
1096 if (h1 >= 'a') c = h1 - (int)'a' + 10;
1097 else if (h1 >= 'A') c = h1 - (int)'A' + 10;
1098 else if (h1 >= '0') c = h1 - (int)'0';
1099 c = c << 4;
1100 if (h2 >= 'a') c += h2 - (int)'a' + 10;
1101 else if (h2 >= 'A') c += h2 - (int)'A' + 10;
1102 else if (h2 >= '0') c += h2 - (int)'0';
1103
1104 return c;
1105 }
1106
1107 return -1;
1108 }
1109
1110 static bool tldap_find_first_star(const char *val, const char **star)
1111 {
1112 const char *s;
1113
1114 for (s = val; *s; s++) {
1115 switch (*s) {
1116 case '\\':
1117 if (isxdigit(s[1]) && isxdigit(s[2])) {
1118 s += 2;
1119 break;
1120 }
1121 /* not hex based escape, check older syntax */
1122 switch (s[1]) {
1123 case '(':
1124 case ')':
1125 case '*':
1126 case '\\':
1127 s++;
1128 break;
1129 default:
1130 /* invalid escape sequence */
1131 return false;
1132 }
1133 break;
1134 case ')':
1135 /* end of val, nothing found */
1136 *star = s;
1137 return true;
1138
1139 case '*':
1140 *star = s;
1141 return true;
1142 }
1143 }
1144
1145 /* string ended without closing parenthesis, filter is malformed */
1146 return false;
1147 }
1148
1149 static bool tldap_unescape_inplace(char *value, size_t *val_len)
1150 {
1151 int c, i, p;
1152
1153 for (i = 0,p = 0; i < *val_len; i++) {
1154
1155 switch (value[i]) {
1156 case '(':
1157 case ')':
1158 case '*':
1159 /* these must be escaped */
1160 return false;
1161
1162 case '\\':
1163 if (!value[i + 1]) {
1164 /* invalid EOL */
1165 return false;
1166 }
1167 i++;
1168
1169 c = tldap_hex2char(&value[i]);
1170 if (c >= 0 && c < 256) {
1171 value[p] = c;
1172 i++;
1173 p++;
1174 break;
1175 }
1176
1177 switch (value[i]) {
1178 case '(':
1179 case ')':
1180 case '*':
1181 case '\\':
1182 value[p] = value[i];
1183 p++;
1184 default:
1185 /* invalid */
1186 return false;
1187 }
1188 break;
1189
1190 default:
1191 value[p] = value[i];
1192 p++;
1193 }
1194 }
1195 value[p] = '\0';
1196 *val_len = p;
1197 return true;
1198 }
1199
1200 static bool tldap_push_filter_basic(struct tldap_context *ld,
1201 struct asn1_data *data,
1202 const char **_s);
1203 static bool tldap_push_filter_substring(struct tldap_context *ld,
1204 struct asn1_data *data,
1205 const char *val,
1206 const char **_s);
1207 static bool tldap_push_filter_int(struct tldap_context *ld,
1208 struct asn1_data *data,
1209 const char **_s)
1210 {
1211 const char *s = *_s;
1212 bool ret;
1213
1214 if (*s != '(') {
1215 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1216 "Incomplete or malformed filter\n");
1217 return false;
1218 }
1219 s++;
1220
1221 /* we are right after a parenthesis,
1222 * find out what op we have at hand */
1223 switch (*s) {
1224 case '&':
1225 tldap_debug(ld, TLDAP_DEBUG_TRACE, "Filter op: AND\n");
1226 asn1_push_tag(data, TLDAP_FILTER_AND);
1227 s++;
1228 break;
1229
1230 case '|':
1231 tldap_debug(ld, TLDAP_DEBUG_TRACE, "Filter op: OR\n");
1232 asn1_push_tag(data, TLDAP_FILTER_OR);
1233 s++;
1234 break;
1235
1236 case '!':
1237 tldap_debug(ld, TLDAP_DEBUG_TRACE, "Filter op: NOT\n");
1238 asn1_push_tag(data, TLDAP_FILTER_NOT);
1239 s++;
1240 ret = tldap_push_filter_int(ld, data, &s);
1241 if (!ret) {
1242 return false;
1243 }
1244 asn1_pop_tag(data);
1245 goto done;
1246
1247 case '(':
1248 case ')':
1249 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1250 "Invalid parenthesis '%c'\n", *s);
1251 return false;
1252
1253 case '\0':
1254 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1255 "Invalid filter termination\n");
1256 return false;
1257
1258 default:
1259 ret = tldap_push_filter_basic(ld, data, &s);
1260 if (!ret) {
1261 return false;
1262 }
1263 goto done;
1264 }
1265
1266 /* only and/or filters get here.
1267 * go through the list of filters */
1268
1269 if (*s == ')') {
1270 /* RFC 4526: empty and/or */
1271 asn1_pop_tag(data);
1272 goto done;
1273 }
1274
1275 while (*s) {
1276 ret = tldap_push_filter_int(ld, data, &s);
1277 if (!ret) {
1278 return false;
1279 }
1280
1281 if (*s == ')') {
1282 /* end of list, return */
1283 asn1_pop_tag(data);
1284 break;
1285 }
1286 }
1287
1288 done:
1289 if (*s != ')') {
1290 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1291 "Incomplete or malformed filter\n");
1292 return false;
1293 }
1294 s++;
1295
1296 if (data->has_error) {
1297 return false;
1298 }
1299
1300 *_s = s;
1301 return true;
1302 }
1303
1304
1305 static bool tldap_push_filter_basic(struct tldap_context *ld,
1306 struct asn1_data *data,
1307 const char **_s)
1308 {
1309 TALLOC_CTX *tmpctx = talloc_tos();
1310 const char *s = *_s;
1311 const char *e;
1312 const char *eq;
1313 const char *val;
1314 const char *type;
1315 const char *dn;
1316 const char *rule;
1317 const char *star;
1318 size_t type_len = 0;
1319 char *uval;
1320 size_t uval_len;
1321 bool write_octect = true;
1322 bool ret;
1323
1324 eq = strchr(s, '=');
1325 if (!eq) {
1326 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1327 "Invalid filter, missing equal sign\n");
1328 return false;
1329 }
1330
1331 val = eq + 1;
1332 e = eq - 1;
1333
1334 switch (*e) {
1335 case '<':
1336 asn1_push_tag(data, TLDAP_FILTER_LE);
1337 break;
1338
1339 case '>':
1340 asn1_push_tag(data, TLDAP_FILTER_GE);
1341 break;
1342
1343 case '~':
1344 asn1_push_tag(data, TLDAP_FILTER_APX);
1345 break;
1346
1347 case ':':
1348 asn1_push_tag(data, TLDAP_FILTER_EXT);
1349 write_octect = false;
1350
1351 type = NULL;
1352 dn = NULL;
1353 rule = NULL;
1354
1355 if (*s == ':') { /* [:dn]:rule:= value */
1356 if (s == e) {
1357 /* malformed filter */
1358 return false;
1359 }
1360 dn = s;
1361 } else { /* type[:dn][:rule]:= value */
1362 type = s;
1363 dn = strchr(s, ':');
1364 type_len = dn - type;
1365 if (dn == e) { /* type:= value */
1366 dn = NULL;
1367 }
1368 }
1369 if (dn) {
1370 dn++;
1371
1372 rule = strchr(dn, ':');
1373 if ((rule == dn + 1) || rule + 1 == e) {
1374 /* malformed filter, contains "::" */
1375 return false;
1376 }
1377
1378 if (StrnCaseCmp(dn, "dn:", 3) != 0) {
1379 if (rule == e) {
1380 rule = dn;
1381 dn = NULL;
1382 } else {
1383 /* malformed filter. With two
1384 * optionals, the first must be "dn"
1385 */
1386 return false;
1387 }
1388 } else {
1389 if (rule == e) {
1390 rule = NULL;
1391 } else {
1392 rule++;
1393 }
1394 }
1395 }
1396
1397 if (!type && !dn && !rule) {
1398 /* malformed filter, there must be at least one */
1399 return false;
1400 }
1401
1402 /*
1403 MatchingRuleAssertion ::= SEQUENCE {
1404 matchingRule [1] MatchingRuleID OPTIONAL,
1405 type [2] AttributeDescription OPTIONAL,
1406 matchValue [3] AssertionValue,
1407 dnAttributes [4] BOOLEAN DEFAULT FALSE
1408 }
1409 */
1410
1411 /* check and add rule */
1412 if (rule) {
1413 ret = tldap_is_attrdesc(rule, e - rule, true);
1414 if (!ret) {
1415 return false;
1416 }
1417 asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(1));
1418 asn1_write(data, rule, e - rule);
1419 asn1_pop_tag(data);
1420 }
1421
1422 /* check and add type */
1423 if (type) {
1424 ret = tldap_is_attrdesc(type, type_len, false);
1425 if (!ret) {
1426 return false;
1427 }
1428 asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(2));
1429 asn1_write(data, type, type_len);
1430 asn1_pop_tag(data);
1431 }
1432
1433 uval = tldap_get_val(tmpctx, val, _s);
1434 if (!uval) {
1435 return false;
1436 }
1437 uval_len = *_s - val;
1438 ret = tldap_unescape_inplace(uval, &uval_len);
1439 if (!ret) {
1440 return false;
1441 }
1442
1443 asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(3));
1444 asn1_write(data, uval, uval_len);
1445 asn1_pop_tag(data);
1446
1447 asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(4));
1448 asn1_write_uint8(data, dn?1:0);
1449 asn1_pop_tag(data);
1450 break;
1451
1452 default:
1453 e = eq;
1454
1455 ret = tldap_is_attrdesc(s, e - s, false);
1456 if (!ret) {
1457 return false;
1458 }
1459
1460 if (strncmp(val, "*)", 2) == 0) {
1461 /* presence */
1462 asn1_push_tag(data, TLDAP_FILTER_PRES);
1463 asn1_write(data, s, e - s);
1464 *_s = val + 1;
1465 write_octect = false;
1466 break;
1467 }
1468
1469 ret = tldap_find_first_star(val, &star);
1470 if (!ret) {
1471 return false;
1472 }
1473 if (*star == '*') {
1474 /* substring */
1475 asn1_push_tag(data, TLDAP_FILTER_SUB);
1476 asn1_write_OctetString(data, s, e - s);
1477 ret = tldap_push_filter_substring(ld, data, val, &s);
1478 if (!ret) {
1479 return false;
1480 }
1481 *_s = s;
1482 write_octect = false;
1483 break;
1484 }
1485
1486 /* if nothing else, then it is just equality */
1487 asn1_push_tag(data, TLDAP_FILTER_EQ);
1488 write_octect = true;
1489 break;
1490 }
1491
1492 if (write_octect) {
1493 uval = tldap_get_val(tmpctx, val, _s);
1494 if (!uval) {
1495 return false;
1496 }
1497 uval_len = *_s - val;
1498 ret = tldap_unescape_inplace(uval, &uval_len);
1499 if (!ret) {
1500 return false;
1501 }
1502
1503 asn1_write_OctetString(data, s, e - s);
1504 asn1_write_OctetString(data, uval, uval_len);
1505 }
1506
1507 if (data->has_error) {
1508 return false;
1509 }
1510 asn1_pop_tag(data);
1511 return true;
1512 }
1513
1514 static bool tldap_push_filter_substring(struct tldap_context *ld,
1515 struct asn1_data *data,
1516 const char *val,
1517 const char **_s)
1518 {
1519 TALLOC_CTX *tmpctx = talloc_tos();
1520 bool initial = true;
1521 const char *star;
1522 char *chunk;
1523 size_t chunk_len;
1524 bool ret;
1525
1526 /*
1527 SubstringFilter ::= SEQUENCE {
1528 type AttributeDescription,
1529 -- at least one must be present
1530 substrings SEQUENCE OF CHOICE {
1531 initial [0] LDAPString,
1532 any [1] LDAPString,
1533 final [2] LDAPString } }
1534 */
1535 asn1_push_tag(data, ASN1_SEQUENCE(0));
1536
1537 do {
1538 ret = tldap_find_first_star(val, &star);
1539 if (!ret) {
1540 return false;
1541 }
1542 chunk_len = star - val;
1543
1544 switch (*star) {
1545 case '*':
1546 if (!initial && chunk_len == 0) {
1547 /* found '**', which is illegal */
1548 return false;
1549 }
1550 break;
1551 case ')':
1552 if (initial) {
1553 /* no stars ?? */
1554 return false;
1555 }
1556 /* we are done */
1557 break;
1558 default:
1559 /* ?? */
1560 return false;
1561 }
1562
1563 if (initial && chunk_len == 0) {
1564 val = star + 1;
1565 initial = false;
1566 continue;
1567 }
1568
1569 chunk = talloc_strndup(tmpctx, val, chunk_len);
1570 if (!chunk) {
1571 return false;
1572 }
1573 ret = tldap_unescape_inplace(chunk, &chunk_len);
1574 if (!ret) {
1575 return false;
1576 }
1577 switch (*star) {
1578 case '*':
1579 if (initial) {
1580 asn1_push_tag(data, TLDAP_SUB_INI);
1581 initial = false;
1582 } else {
1583 asn1_push_tag(data, TLDAP_SUB_ANY);
1584 }
1585 break;
1586 case ')':
1587 asn1_push_tag(data, TLDAP_SUB_FIN);
1588 break;
1589 default:
1590 /* ?? */
1591 return false;
1592 }
1593 asn1_write(data, chunk, chunk_len);
1594 asn1_pop_tag(data);
1595
1596 val = star + 1;
1597
1598 } while (*star == '*');
1599
1600 *_s = star;
1601
1602 /* end of sequence */
1603 asn1_pop_tag(data);
1604 return true;
1605 }
1606
1607 /* NOTE: although openldap libraries allow for spaces in some places, mosly
1608 * around parenthesis, we do not allow any spaces (except in values of
1609 * course) as I couldn't fine any place in RFC 4512 or RFC 4515 where
1610 * leading or trailing spaces where allowed.
1611 */
1612 static bool tldap_push_filter(struct tldap_context *ld,
1613 struct asn1_data *data,
1614 const char *filter)
1615 {
1616 const char *s = filter;
1617 bool ret;
1618
1619 ret = tldap_push_filter_int(ld, data, &s);
1620 if (ret && *s) {
1621 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1622 "Incomplete or malformed filter\n");
1623 return false;
1624 }
1625 return ret;
1626 }
1627
1628 /*****************************************************************************/
1629
1630 static void tldap_search_done(struct tevent_req *subreq);
1631
1632 struct tevent_req *tldap_search_send(TALLOC_CTX *mem_ctx,
1633 struct tevent_context *ev,
1634 struct tldap_context *ld,
1635 const char *base, int scope,
1636 const char *filter,
1637 const char **attrs,
1638 int num_attrs,
1639 int attrsonly,
1640 struct tldap_control *sctrls,
1641 int num_sctrls,
1642 struct tldap_control *cctrls,
1643 int num_cctrls,
1644 int timelimit,
1645 int sizelimit,
1646 int deref)
1647 {
1648 struct tevent_req *req, *subreq;
1649 struct tldap_req_state *state;
1650 int i;
1651
1652 req = tldap_req_create(mem_ctx, ld, &state);
1653 if (req == NULL) {
1654 return NULL;
1655 }
1656
1657 asn1_push_tag(state->out, TLDAP_REQ_SEARCH);
1658 asn1_write_OctetString(state->out, base, strlen(base));
1659 asn1_write_enumerated(state->out, scope);
1660 asn1_write_enumerated(state->out, deref);
1661 asn1_write_Integer(state->out, sizelimit);
1662 asn1_write_Integer(state->out, timelimit);
1663 asn1_write_BOOLEAN(state->out, attrsonly);
1664
1665 if (!tldap_push_filter(ld, state->out, filter)) {
1666 goto encoding_error;
1667 }
1668
1669 asn1_push_tag(state->out, ASN1_SEQUENCE(0));
1670 for (i=0; i<num_attrs; i++) {
1671 asn1_write_OctetString(state->out, attrs[i], strlen(attrs[i]));
1672 }
1673 asn1_pop_tag(state->out);
1674 asn1_pop_tag(state->out);
1675
1676 subreq = tldap_msg_send(state, ev, ld, state->id, state->out,
1677 sctrls, num_sctrls);
1678 if (tevent_req_nomem(subreq, req)) {
1679 return tevent_req_post(req, ev);
1680 }
1681 tevent_req_set_callback(subreq, tldap_search_done, req);
1682 return req;
1683
1684 encoding_error:
1685 tevent_req_error(req, TLDAP_ENCODING_ERROR);
1686 return tevent_req_post(req, ev);
1687 }
1688
1689 static void tldap_search_done(struct tevent_req *subreq)
1690 {
1691 struct tevent_req *req = tevent_req_callback_data(
1692 subreq, struct tevent_req);
1693 struct tldap_req_state *state = tevent_req_data(
1694 req, struct tldap_req_state);
1695 int err;
1696
1697 err = tldap_msg_recv(subreq, state, &state->result);
1698 if (err != TLDAP_SUCCESS) {
1699 tevent_req_error(req, err);
1700 return;
1701 }
1702 switch (state->result->type) {
1703 case TLDAP_RES_SEARCH_ENTRY:
1704 case TLDAP_RES_SEARCH_REFERENCE:
1705 tevent_req_notify_callback(req);
1706 if (!tldap_msg_set_pending(subreq)) {
1707 tevent_req_nomem(NULL, req);
1708 return;
1709 }
1710 break;
1711 case TLDAP_RES_SEARCH_RESULT:
1712 TALLOC_FREE(subreq);
1713 if (!asn1_start_tag(state->result->data,
1714 state->result->type) ||
1715 !tldap_decode_response(state) ||
1716 !asn1_end_tag(state->result->data) ||
1717 !tldap_decode_controls(state)) {
1718 tevent_req_error(req, TLDAP_DECODING_ERROR);
1719 return;
1720 }
1721 tevent_req_done(req);
1722 break;
1723 default:
1724 tevent_req_error(req, TLDAP_PROTOCOL_ERROR);
1725 return;
1726 }
1727 }
1728
1729 int tldap_search_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
1730 struct tldap_message **pmsg)
1731 {
1732 struct tldap_req_state *state = tevent_req_data(
1733 req, struct tldap_req_state);
1734 int err;
1735
1736 if (!tevent_req_is_in_progress(req)
1737 && tevent_req_is_ldap_error(req, &err)) {
1738 return err;
1739 }
1740
1741 if (tevent_req_is_in_progress(req)) {
1742 switch (state->result->type) {
1743 case TLDAP_RES_SEARCH_ENTRY:
1744 case TLDAP_RES_SEARCH_REFERENCE:
1745 break;
1746 default:
1747 return TLDAP_OPERATIONS_ERROR;
1748 }
1749 }
1750
1751 *pmsg = talloc_move(mem_ctx, &state->result);
1752 return TLDAP_SUCCESS;
1753 }
1754
1755 struct tldap_sync_search_state {
1756 TALLOC_CTX *mem_ctx;
1757 struct tldap_message **entries;
1758 struct tldap_message **refs;
1759 int rc;
1760 };
1761
1762 static void tldap_search_cb(struct tevent_req *req)
1763 {
1764 struct tldap_sync_search_state *state =
1765 (struct tldap_sync_search_state *)
1766 tevent_req_callback_data_void(req);
1767 struct tldap_message *msg, **tmp;
1768 int rc, num_entries, num_refs;
1769
1770 rc = tldap_search_recv(req, talloc_tos(), &msg);
1771 if (rc != TLDAP_SUCCESS) {
1772 state->rc = rc;
1773 return;
1774 }
1775
1776 switch (tldap_msg_type(msg)) {
1777 case TLDAP_RES_SEARCH_ENTRY:
1778 num_entries = talloc_array_length(state->entries);
1779 tmp = talloc_realloc(state->mem_ctx, state->entries,
1780 struct tldap_message *, num_entries + 1);
1781 if (tmp == NULL) {
1782 state->rc = TLDAP_NO_MEMORY;
1783 return;
1784 }
1785 state->entries = tmp;
1786 state->entries[num_entries] = talloc_move(state->entries,
1787 &msg);
1788 break;
1789 case TLDAP_RES_SEARCH_REFERENCE:
1790 num_refs = talloc_array_length(state->refs);
1791 tmp = talloc_realloc(state->mem_ctx, state->refs,
1792 struct tldap_message *, num_refs + 1);
1793 if (tmp == NULL) {
1794 state->rc = TLDAP_NO_MEMORY;
1795 return;
1796 }
1797 state->refs = tmp;
1798 state->refs[num_refs] = talloc_move(state->refs, &msg);
1799 break;
1800 case TLDAP_RES_SEARCH_RESULT:
1801 state->rc = TLDAP_SUCCESS;
1802 break;
1803 default:
1804 state->rc = TLDAP_PROTOCOL_ERROR;
1805 break;
1806 }
1807 }
1808
1809 int tldap_search(struct tldap_context *ld,
1810 const char *base, int scope, const char *filter,
1811 const char **attrs, int num_attrs, int attrsonly,
1812 struct tldap_control *sctrls, int num_sctrls,
1813 struct tldap_control *cctrls, int num_cctrls,
1814 int timelimit, int sizelimit, int deref,
1815 TALLOC_CTX *mem_ctx, struct tldap_message ***entries,
1816 struct tldap_message ***refs)
1817 {
1818 TALLOC_CTX *frame = talloc_stackframe();
1819 struct tevent_context *ev;
1820 struct tevent_req *req;
1821 struct tldap_sync_search_state state;
1822
1823 ZERO_STRUCT(state);
1824 state.mem_ctx = mem_ctx;
1825 state.rc = TLDAP_SUCCESS;
1826
1827 ev = event_context_init(frame);
1828 if (ev == NULL) {
1829 state.rc = TLDAP_NO_MEMORY;
1830 goto fail;
1831 }
1832
1833 req = tldap_search_send(frame, ev, ld, base, scope, filter,
1834 attrs, num_attrs, attrsonly,
1835 sctrls, num_sctrls, cctrls, num_cctrls,
1836 timelimit, sizelimit, deref);
1837 if (req == NULL) {
1838 state.rc = TLDAP_NO_MEMORY;
1839 goto fail;
1840 }
1841
1842 tevent_req_set_callback(req, tldap_search_cb, &state);
1843
1844 if (!tevent_req_is_in_progress(req)) {
1845 /* an error happend before sending */
1846 if (tevent_req_is_ldap_error(req, &state.rc)) {
1847 goto fail;
1848 }
1849 }
1850
1851 while (tevent_req_is_in_progress(req)
1852 && (state.rc == TLDAP_SUCCESS)) {
1853 if (tevent_loop_once(ev) == -1) {
1854 return TLDAP_OPERATIONS_ERROR;
1855 }
1856 }
1857
1858 if (state.rc != TLDAP_SUCCESS) {
1859 return state.rc;
1860 }
1861
1862 if (entries != NULL) {
1863 *entries = state.entries;
1864 } else {
1865 TALLOC_FREE(state.entries);
1866 }
1867 if (refs != NULL) {
1868 *refs = state.refs;
1869 } else {
1870 TALLOC_FREE(state.refs);
1871 }
1872 tldap_save_msg(ld, req);
1873 fail:
1874 TALLOC_FREE(frame);
1875 return state.rc;
1876 }
1877
1878 static bool tldap_parse_search_entry(struct tldap_message *msg)
1879 {
1880 int num_attribs = 0;
1881
1882 asn1_start_tag(msg->data, msg->type);
1883
1884 /* dn */
1885
1886 asn1_read_OctetString_talloc(msg, msg->data, &msg->dn);
1887 if (msg->dn == NULL) {
1888 return false;
1889 }
1890
1891 /*
1892 * Attributes: We overallocate msg->attribs by one, so that while
1893 * looping over the attributes we can directly parse into the last
1894 * array element. Same for the values in the inner loop.
1895 */
1896
1897 msg->attribs = talloc_array(msg, struct tldap_attribute, 1);
1898 if (msg->attribs == NULL) {
1899 return false;
1900 }
1901
1902 asn1_start_tag(msg->data, ASN1_SEQUENCE(0));
1903 while (asn1_peek_tag(msg->data, ASN1_SEQUENCE(0))) {
1904 struct tldap_attribute *attrib;
1905 int num_values = 0;
1906
1907 attrib = &msg->attribs[num_attribs];
1908 attrib->values = talloc_array(msg->attribs, DATA_BLOB, 1);
1909 if (attrib->values == NULL) {
1910 return false;
1911 }
1912 asn1_start_tag(msg->data, ASN1_SEQUENCE(0));
1913 asn1_read_OctetString_talloc(msg->attribs, msg->data,
1914 &attrib->name);
1915 asn1_start_tag(msg->data, ASN1_SET);
1916
1917 while (asn1_peek_tag(msg->data, ASN1_OCTET_STRING)) {
1918 asn1_read_OctetString(msg->data, msg,
1919 &attrib->values[num_values]);
1920
1921 attrib->values = talloc_realloc(
1922 msg->attribs, attrib->values, DATA_BLOB,
1923 num_values + 2);
1924 if (attrib->values == NULL) {
1925 return false;
1926 }
1927 num_values += 1;
1928 }
1929 attrib->values = talloc_realloc(msg->attribs, attrib->values,
1930 DATA_BLOB, num_values);
1931 attrib->num_values = num_values;
1932
1933 asn1_end_tag(msg->data); /* ASN1_SET */
1934 asn1_end_tag(msg->data); /* ASN1_SEQUENCE(0) */
1935 msg->attribs = talloc_realloc(
1936 msg, msg->attribs, struct tldap_attribute,
1937 num_attribs + 2);
1938 if (msg->attribs == NULL) {
1939 return false;
1940 }
1941 num_attribs += 1;
1942 }
1943 msg->attribs = talloc_realloc(
1944 msg, msg->attribs, struct tldap_attribute, num_attribs);
1945 asn1_end_tag(msg->data);
1946 if (msg->data->has_error) {
1947 return false;
1948 }
1949 return true;
1950 }
1951
1952 bool tldap_entry_dn(struct tldap_message *msg, char **dn)
1953 {
1954 if ((msg->dn == NULL) && (!tldap_parse_search_entry(msg))) {
1955 return false;
1956 }
1957 *dn = msg->dn;
1958 return true;
1959 }
1960
1961 bool tldap_entry_attributes(struct tldap_message *msg, int *num_attributes,
1962 struct tldap_attribute **attributes)
1963 {
1964 if ((msg->dn == NULL) && (!tldap_parse_search_entry(msg))) {
1965 return false;
1966 }
1967 *attributes = msg->attribs;
1968 *num_attributes = talloc_array_length(msg->attribs);
1969 return true;
1970 }
1971
1972 static bool tldap_decode_controls(struct tldap_req_state *state)
1973 {
1974 struct tldap_message *msg = state->result;
1975 struct asn1_data *data = msg->data;
1976 struct tldap_control *sctrls = NULL;
1977 int num_controls = 0;
1978
1979 msg->res_sctrls = NULL;
1980
1981 if (!asn1_peek_tag(data, ASN1_CONTEXT(0))) {
1982 return true;
1983 }
1984
1985 asn1_start_tag(data, ASN1_CONTEXT(0));
1986
1987 while (asn1_peek_tag(data, ASN1_SEQUENCE(0))) {
1988 struct tldap_control *c;
1989 char *oid = NULL;
1990
1991 sctrls = talloc_realloc(msg, sctrls, struct tldap_control,
1992 num_controls + 1);
1993 if (sctrls == NULL) {
1994 return false;
1995 }
1996 c = &sctrls[num_controls];
1997
1998 asn1_start_tag(data, ASN1_SEQUENCE(0));
1999 asn1_read_OctetString_talloc(msg, data, &oid);
2000 if ((data->has_error) || (oid == NULL)) {
2001 return false;
2002 }
2003 c->oid = oid;
2004 if (asn1_peek_tag(data, ASN1_BOOLEAN)) {
2005 asn1_read_BOOLEAN(data, &c->critical);
2006 } else {
2007 c->critical = false;
2008 }
2009 c->value = data_blob_null;
2010 if (asn1_peek_tag(data, ASN1_OCTET_STRING) &&
2011 !asn1_read_OctetString(data, msg, &c->value)) {
2012 return false;
2013 }
2014 asn1_end_tag(data); /* ASN1_SEQUENCE(0) */
2015
2016 num_controls += 1;
2017 }
2018
2019 asn1_end_tag(data); /* ASN1_CONTEXT(0) */
2020
2021 if (data->has_error) {
2022 TALLOC_FREE(sctrls);
2023 return false;
2024 }
2025 msg->res_sctrls = sctrls;
2026 return true;
2027 }
2028
2029 static void tldap_simple_done(struct tevent_req *subreq, int type)
2030 {
2031 struct tevent_req *req = tevent_req_callback_data(
2032 subreq, struct tevent_req);
2033 struct tldap_req_state *state = tevent_req_data(
2034 req, struct tldap_req_state);
2035 int err;
2036
2037 err = tldap_msg_recv(subreq, state, &state->result);
2038 TALLOC_FREE(subreq);
2039 if (err != TLDAP_SUCCESS) {
2040 tevent_req_error(req, err);
2041 return;
2042 }
2043 if (state->result->type != type) {
2044 tevent_req_error(req, TLDAP_PROTOCOL_ERROR);
2045 return;
2046 }
2047 if (!asn1_start_tag(state->result->data, state->result->type) ||
2048 !tldap_decode_response(state) ||
2049 !asn1_end_tag(state->result->data) ||
2050 !tldap_decode_controls(state)) {
2051 tevent_req_error(req, TLDAP_DECODING_ERROR);
2052 return;
2053 }
2054 if (state->result->lderr != TLDAP_SUCCESS) {
2055 tevent_req_error(req, state->result->lderr);
2056 return;
2057 }
2058 tevent_req_done(req);
2059 }
2060
2061 static int tldap_simple_recv(struct tevent_req *req)
2062 {
2063 int err;
2064 if (tevent_req_is_ldap_error(req, &err)) {
2065 return err;
2066 }
2067 return TLDAP_SUCCESS;
2068 }
2069
2070 static void tldap_add_done(struct tevent_req *subreq);
2071
2072 struct tevent_req *tldap_add_send(TALLOC_CTX *mem_ctx,
2073 struct tevent_context *ev,
2074 struct tldap_context *ld,
2075 const char *dn,
2076 struct tldap_mod *attributes,
2077 int num_attributes,
2078 struct tldap_control *sctrls,
2079 int num_sctrls,
2080 struct tldap_control *cctrls,
2081 int num_cctrls)
2082 {
2083 struct tevent_req *req, *subreq;
2084 struct tldap_req_state *state;
2085 int i, j;
2086
2087 req = tldap_req_create(mem_ctx, ld, &state);
2088 if (req == NULL) {
2089 return NULL;
2090 }
2091
2092 asn1_push_tag(state->out, TLDAP_REQ_ADD);
2093 asn1_write_OctetString(state->out, dn, strlen(dn));
2094 asn1_push_tag(state->out, ASN1_SEQUENCE(0));
2095
2096 for (i=0; i<num_attributes; i++) {
2097 struct tldap_mod *attrib = &attributes[i];
2098 asn1_push_tag(state->out, ASN1_SEQUENCE(0));
2099 asn1_write_OctetString(state->out, attrib->attribute,
2100 strlen(attrib->attribute));
2101 asn1_push_tag(state->out, ASN1_SET);
2102 for (j=0; j<attrib->num_values; j++) {
2103 asn1_write_OctetString(state->out,
2104 attrib->values[j].data,
2105 attrib->values[j].length);
2106 }
2107 asn1_pop_tag(state->out);
2108 asn1_pop_tag(state->out);
2109 }
2110
2111 asn1_pop_tag(state->out);
2112 asn1_pop_tag(state->out);
2113
2114 subreq = tldap_msg_send(state, ev, ld, state->id, state->out,
2115 sctrls, num_sctrls);
2116 if (tevent_req_nomem(subreq, req)) {
2117 return tevent_req_post(req, ev);
2118 }
2119 tevent_req_set_callback(subreq, tldap_add_done, req);
2120 return req;
2121 }
2122
2123 static void tldap_add_done(struct tevent_req *subreq)
2124 {
2125 tldap_simple_done(subreq, TLDAP_RES_ADD);
2126 }
2127
2128 int tldap_add_recv(struct tevent_req *req)
2129 {
2130 return tldap_simple_recv(req);
2131 }
2132
2133 int tldap_add(struct tldap_context *ld, const char *dn,
2134 struct tldap_mod *attributes, int num_attributes,
2135 struct tldap_control *sctrls, int num_sctrls,
2136 struct tldap_control *cctrls, int num_cctrls)
2137 {
2138 TALLOC_CTX *frame = talloc_stackframe();
2139 struct tevent_context *ev;
2140 struct tevent_req *req;
2141 int result;
2142
2143 ev = event_context_init(frame);
2144 if (ev == NULL) {
2145 result = TLDAP_NO_MEMORY;
2146 goto fail;
2147 }
2148
2149 req = tldap_add_send(frame, ev, ld, dn, attributes, num_attributes,
2150 sctrls, num_sctrls, cctrls, num_cctrls);
2151 if (req == NULL) {
2152 result = TLDAP_NO_MEMORY;
2153 goto fail;
2154 }
2155
2156 if (!tevent_req_poll(req, ev)) {
2157 result = TLDAP_OPERATIONS_ERROR;
2158 goto fail;
2159 }
2160
2161 result = tldap_add_recv(req);
2162 tldap_save_msg(ld, req);
2163 fail:
2164 TALLOC_FREE(frame);
2165 return result;
2166 }
2167
2168 static void tldap_modify_done(struct tevent_req *subreq);
2169
2170 struct tevent_req *tldap_modify_send(TALLOC_CTX *mem_ctx,
2171 struct tevent_context *ev,
2172 struct tldap_context *ld,
2173 const char *dn,
2174 struct tldap_mod *mods, int num_mods,
2175 struct tldap_control *sctrls,
2176 int num_sctrls,
2177 struct tldap_control *cctrls,
2178 int num_cctrls)
2179 {
2180 struct tevent_req *req, *subreq;
2181 struct tldap_req_state *state;
2182 int i, j;
2183
2184 req = tldap_req_create(mem_ctx, ld, &state);
2185 if (req == NULL) {
2186 return NULL;
2187 }
2188
2189 asn1_push_tag(state->out, TLDAP_REQ_MODIFY);
2190 asn1_write_OctetString(state->out, dn, strlen(dn));
2191 asn1_push_tag(state->out, ASN1_SEQUENCE(0));
2192
2193 for (i=0; i<num_mods; i++) {
2194 struct tldap_mod *mod = &mods[i];
2195 asn1_push_tag(state->out, ASN1_SEQUENCE(0));
2196 asn1_write_enumerated(state->out, mod->mod_op),
2197 asn1_push_tag(state->out, ASN1_SEQUENCE(0));
2198 asn1_write_OctetString(state->out, mod->attribute,
2199 strlen(mod->attribute));
2200 asn1_push_tag(state->out, ASN1_SET);
2201 for (j=0; j<mod->num_values; j++) {
2202 asn1_write_OctetString(state->out,
2203 mod->values[j].data,
2204 mod->values[j].length);
2205 }
2206 asn1_pop_tag(state->out);
2207 asn1_pop_tag(state->out);
2208 asn1_pop_tag(state->out);
2209 }
2210
2211 asn1_pop_tag(state->out);
2212 asn1_pop_tag(state->out);
2213
2214 subreq = tldap_msg_send(state, ev, ld, state->id, state->out,
2215 sctrls, num_sctrls);
2216 if (tevent_req_nomem(subreq, req)) {
2217 return tevent_req_post(req, ev);
2218 }
2219 tevent_req_set_callback(subreq, tldap_modify_done, req);
2220 return req;
2221 }
2222
2223 static void tldap_modify_done(struct tevent_req *subreq)
2224 {
2225 tldap_simple_done(subreq, TLDAP_RES_MODIFY);
2226 }
2227
2228 int tldap_modify_recv(struct tevent_req *req)
2229 {
2230 return tldap_simple_recv(req);
2231 }
2232
2233 int tldap_modify(struct tldap_context *ld, const char *dn,
2234 struct tldap_mod *mods, int num_mods,
2235 struct tldap_control *sctrls, int num_sctrls,
2236 struct tldap_control *cctrls, int num_cctrls)
2237 {
2238 TALLOC_CTX *frame = talloc_stackframe();
2239 struct tevent_context *ev;
2240 struct tevent_req *req;
2241 int result;
2242
2243 ev = event_context_init(frame);
2244 if (ev == NULL) {
2245 result = TLDAP_NO_MEMORY;
2246 goto fail;
2247 }
2248
2249 req = tldap_modify_send(frame, ev, ld, dn, mods, num_mods,
2250 sctrls, num_sctrls, cctrls, num_cctrls);
2251 if (req == NULL) {
2252 result = TLDAP_NO_MEMORY;
2253 goto fail;
2254 }
2255
2256 if (!tevent_req_poll(req, ev)) {
2257 result = TLDAP_OPERATIONS_ERROR;
2258 goto fail;
2259 }
2260
2261 result = tldap_modify_recv(req);
2262 tldap_save_msg(ld, req);
2263 fail:
2264 TALLOC_FREE(frame);
2265 return result;
2266 }
2267
2268 static void tldap_delete_done(struct tevent_req *subreq);
2269
2270 struct tevent_req *tldap_delete_send(TALLOC_CTX *mem_ctx,
2271 struct tevent_context *ev,
2272 struct tldap_context *ld,
2273 const char *dn,
2274 struct tldap_control *sctrls,
2275 int num_sctrls,
2276 struct tldap_control *cctrls,
2277 int num_cctrls)
2278 {
2279 struct tevent_req *req, *subreq;
2280 struct tldap_req_state *state;
2281
2282 req = tldap_req_create(mem_ctx, ld, &state);
2283 if (req == NULL) {
2284 return NULL;
2285 }
2286
2287 asn1_push_tag(state->out, TLDAP_REQ_DELETE);
2288 asn1_write(state->out, dn, strlen(dn));
2289 asn1_pop_tag(state->out);
2290
2291 subreq = tldap_msg_send(state, ev, ld, state->id, state->out,
2292 sctrls, num_sctrls);
2293 if (tevent_req_nomem(subreq, req)) {
2294 return tevent_req_post(req, ev);
2295 }
2296 tevent_req_set_callback(subreq, tldap_delete_done, req);
2297 return req;
2298 }
2299
2300 static void tldap_delete_done(struct tevent_req *subreq)
2301 {
2302 tldap_simple_done(subreq, TLDAP_RES_DELETE);
2303 }
2304
2305 int tldap_delete_recv(struct tevent_req *req)
2306 {
2307 return tldap_simple_recv(req);
2308 }
2309
2310 int tldap_delete(struct tldap_context *ld, const char *dn,
2311 struct tldap_control *sctrls, int num_sctrls,
2312 struct tldap_control *cctrls, int num_cctrls)
2313 {
2314 TALLOC_CTX *frame = talloc_stackframe();
2315 struct tevent_context *ev;
2316 struct tevent_req *req;
2317 int result;
2318
2319 ev = event_context_init(frame);
2320 if (ev == NULL) {
2321 result = TLDAP_NO_MEMORY;
2322 goto fail;
2323 }
2324
2325 req = tldap_delete_send(frame, ev, ld, dn, sctrls, num_sctrls,
2326 cctrls, num_cctrls);
2327 if (req == NULL) {
2328 result = TLDAP_NO_MEMORY;
2329 goto fail;
2330 }
2331
2332 if (!tevent_req_poll(req, ev)) {
2333 result = TLDAP_OPERATIONS_ERROR;
2334 goto fail;
2335 }
2336
2337 result = tldap_delete_recv(req);
2338 tldap_save_msg(ld, req);
2339 fail:
2340 TALLOC_FREE(frame);
2341 return result;
2342 }
2343
2344 int tldap_msg_id(const struct tldap_message *msg)
2345 {
2346 return msg->id;
2347 }
2348
2349 int tldap_msg_type(const struct tldap_message *msg)
2350 {
2351 return msg->type;
2352 }
2353
2354 const char *tldap_msg_matcheddn(struct tldap_message *msg)
2355 {
2356 if (msg == NULL) {
2357 return NULL;
2358 }
2359 return msg->res_matcheddn;
2360 }
2361
2362 const char *tldap_msg_diagnosticmessage(struct tldap_message *msg)
2363 {
2364 if (msg == NULL) {
2365 return NULL;
2366 }
2367 return msg->res_diagnosticmessage;
2368 }
2369
2370 const char *tldap_msg_referral(struct tldap_message *msg)
2371 {
2372 if (msg == NULL) {
2373 return NULL;
2374 }
2375 return msg->res_referral;
2376 }
2377
2378 void tldap_msg_sctrls(struct tldap_message *msg, int *num_sctrls,
2379 struct tldap_control **sctrls)
2380 {
2381 if (msg == NULL) {
2382 *sctrls = NULL;
2383 *num_sctrls = 0;
2384 return;
2385 }
2386 *sctrls = msg->res_sctrls;
2387 *num_sctrls = talloc_array_length(msg->res_sctrls);
2388 }
2389
2390 struct tldap_message *tldap_ctx_lastmsg(struct tldap_context *ld)
2391 {
2392 return ld->last_msg;
2393 }
2394
2395 const char *tldap_err2string(int rc)
2396 {
2397 const char *res = NULL;
2398
2399 /*
2400 * This would normally be a table, but the error codes are not fully
2401 * sequential. Let the compiler figure out the optimum implementation
2402 * :-)
2403 */
2404
2405 switch (rc) {
2406 case TLDAP_SUCCESS:
2407 res = "TLDAP_SUCCESS";
2408 break;
2409 case TLDAP_OPERATIONS_ERROR:
2410 res = "TLDAP_OPERATIONS_ERROR";
2411 break;
2412 case TLDAP_PROTOCOL_ERROR:
2413 res = "TLDAP_PROTOCOL_ERROR";
2414 break;
2415 case TLDAP_TIMELIMIT_EXCEEDED:
2416 res = "TLDAP_TIMELIMIT_EXCEEDED";
2417 break;
2418 case TLDAP_SIZELIMIT_EXCEEDED:
2419 res = "TLDAP_SIZELIMIT_EXCEEDED";
2420 break;
2421 case TLDAP_COMPARE_FALSE:
2422 res = "TLDAP_COMPARE_FALSE";
2423 break;
2424 case TLDAP_COMPARE_TRUE:
2425 res = "TLDAP_COMPARE_TRUE";
2426 break;
2427 case TLDAP_STRONG_AUTH_NOT_SUPPORTED:
2428 res = "TLDAP_STRONG_AUTH_NOT_SUPPORTED";
2429 break;
2430 case TLDAP_STRONG_AUTH_REQUIRED:
2431 res = "TLDAP_STRONG_AUTH_REQUIRED";
2432 break;
2433 case TLDAP_REFERRAL:
2434 res = "TLDAP_REFERRAL";
2435 break;
2436 case TLDAP_ADMINLIMIT_EXCEEDED:
2437 res = "TLDAP_ADMINLIMIT_EXCEEDED";
2438 break;
2439 case TLDAP_UNAVAILABLE_CRITICAL_EXTENSION:
2440 res = "TLDAP_UNAVAILABLE_CRITICAL_EXTENSION";
2441 break;
2442 case TLDAP_CONFIDENTIALITY_REQUIRED:
2443 res = "TLDAP_CONFIDENTIALITY_REQUIRED";
2444 break;
2445 case TLDAP_SASL_BIND_IN_PROGRESS:
2446 res = "TLDAP_SASL_BIND_IN_PROGRESS";
2447 break;
2448 case TLDAP_NO_SUCH_ATTRIBUTE:
2449 res = "TLDAP_NO_SUCH_ATTRIBUTE";
2450 break;
2451 case TLDAP_UNDEFINED_TYPE:
2452 res = "TLDAP_UNDEFINED_TYPE";
2453 break;
2454 case TLDAP_INAPPROPRIATE_MATCHING:
2455 res = "TLDAP_INAPPROPRIATE_MATCHING";
2456 break;
2457 case TLDAP_CONSTRAINT_VIOLATION:
2458 res = "TLDAP_CONSTRAINT_VIOLATION";
2459 break;
2460 case TLDAP_TYPE_OR_VALUE_EXISTS:
2461 res = "TLDAP_TYPE_OR_VALUE_EXISTS";
2462 break;
2463 case TLDAP_INVALID_SYNTAX:
2464 res = "TLDAP_INVALID_SYNTAX";
2465 break;
2466 case TLDAP_NO_SUCH_OBJECT:
2467 res = "TLDAP_NO_SUCH_OBJECT";
2468 break;
2469 case TLDAP_ALIAS_PROBLEM:
2470 res = "TLDAP_ALIAS_PROBLEM";
2471 break;
2472 case TLDAP_INVALID_DN_SYNTAX:
2473 res = "TLDAP_INVALID_DN_SYNTAX";
2474 break;
2475 case TLDAP_IS_LEAF:
2476 res = "TLDAP_IS_LEAF";
2477 break;
2478 case TLDAP_ALIAS_DEREF_PROBLEM:
2479 res = "TLDAP_ALIAS_DEREF_PROBLEM";
2480 break;
2481 case TLDAP_INAPPROPRIATE_AUTH:
2482 res = "TLDAP_INAPPROPRIATE_AUTH";
2483 break;
2484 case TLDAP_INVALID_CREDENTIALS:
2485 res = "TLDAP_INVALID_CREDENTIALS";
2486 break;
2487 case TLDAP_INSUFFICIENT_ACCESS:
2488 res = "TLDAP_INSUFFICIENT_ACCESS";
2489 break;
2490 case TLDAP_BUSY:
2491 res = "TLDAP_BUSY";
2492 break;
2493 case TLDAP_UNAVAILABLE:
2494 res = "TLDAP_UNAVAILABLE";
2495 break;
2496 case TLDAP_UNWILLING_TO_PERFORM:
2497 res = "TLDAP_UNWILLING_TO_PERFORM";
2498 break;
2499 case TLDAP_LOOP_DETECT:
2500 res = "TLDAP_LOOP_DETECT";
2501 break;
2502 case TLDAP_NAMING_VIOLATION:
2503 res = "TLDAP_NAMING_VIOLATION";
2504 break;
2505 case TLDAP_OBJECT_CLASS_VIOLATION:
2506 res = "TLDAP_OBJECT_CLASS_VIOLATION";
2507 break;
2508 case TLDAP_NOT_ALLOWED_ON_NONLEAF:
2509 res = "TLDAP_NOT_ALLOWED_ON_NONLEAF";
2510 break;
2511 case TLDAP_NOT_ALLOWED_ON_RDN:
2512 res = "TLDAP_NOT_ALLOWED_ON_RDN";
2513 break;
2514 case TLDAP_ALREADY_EXISTS:
2515 res = "TLDAP_ALREADY_EXISTS";
2516 break;
2517 case TLDAP_NO_OBJECT_CLASS_MODS:
2518 res = "TLDAP_NO_OBJECT_CLASS_MODS";
2519 break;
2520 case TLDAP_RESULTS_TOO_LARGE:
2521 res = "TLDAP_RESULTS_TOO_LARGE";
2522 break;
2523 case TLDAP_AFFECTS_MULTIPLE_DSAS:
2524 res = "TLDAP_AFFECTS_MULTIPLE_DSAS";
2525 break;
2526 case TLDAP_OTHER:
2527 res = "TLDAP_OTHER";
2528 break;
2529 case TLDAP_SERVER_DOWN:
2530 res = "TLDAP_SERVER_DOWN";
2531 break;
2532 case TLDAP_LOCAL_ERROR:
2533 res = "TLDAP_LOCAL_ERROR";
2534 break;
2535 case TLDAP_ENCODING_ERROR:
2536 res = "TLDAP_ENCODING_ERROR";
2537 break;
2538 case TLDAP_DECODING_ERROR:
2539 res = "TLDAP_DECODING_ERROR";
2540 break;
2541 case TLDAP_TIMEOUT:
2542 res = "TLDAP_TIMEOUT";
2543 break;
2544 case TLDAP_AUTH_UNKNOWN:
2545 res = "TLDAP_AUTH_UNKNOWN";
2546 break;
2547 case TLDAP_FILTER_ERROR:
2548 res = "TLDAP_FILTER_ERROR";
2549 break;
2550 case TLDAP_USER_CANCELLED:
2551 res = "TLDAP_USER_CANCELLED";
2552 break;
2553 case TLDAP_PARAM_ERROR:
2554 res = "TLDAP_PARAM_ERROR";
2555 break;
2556 case TLDAP_NO_MEMORY:
2557 res = "TLDAP_NO_MEMORY";
2558 break;
2559 case TLDAP_CONNECT_ERROR:
2560 res = "TLDAP_CONNECT_ERROR";
2561 break;
2562 case TLDAP_NOT_SUPPORTED:
2563 res = "TLDAP_NOT_SUPPORTED";
2564 break;
2565 case TLDAP_CONTROL_NOT_FOUND:
2566 res = "TLDAP_CONTROL_NOT_FOUND";
2567 break;
2568 case TLDAP_NO_RESULTS_RETURNED:
2569 res = "TLDAP_NO_RESULTS_RETURNED";
2570 break;
2571 case TLDAP_MORE_RESULTS_TO_RETURN:
2572 res = "TLDAP_MORE_RESULTS_TO_RETURN";
2573 break;
2574 case TLDAP_CLIENT_LOOP:
2575 res = "TLDAP_CLIENT_LOOP";
2576 break;
2577 case TLDAP_REFERRAL_LIMIT_EXCEEDED:
2578 res = "TLDAP_REFERRAL_LIMIT_EXCEEDED";
2579 break;
2580 default:
2581 res = talloc_asprintf(talloc_tos(), "Unknown LDAP Error (%d)",
2582 rc);
2583 break;
2584 }
2585 if (res == NULL) {
2586 res = "Unknown LDAP Error";
2587 }
2588 return res;
2589 }
WIP