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s4:torture/rpc/samba3rpc.c: make use of dcerpc_binding_handle stubs
[Samba/nascimento.git] / source3 / lib / tldap.c
blobfffa42cd3392feba5b30428de288290cce57e757
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
22 bool tevent_req_is_ldap_error(struct tevent_req *req, int *perr)
23 {
24 enum tevent_req_state state;
25 uint64_t err;
26
27 if (!tevent_req_is_error(req, &state, &err)) {
28 return false;
29 }
30 switch (state) {
31 case TEVENT_REQ_TIMED_OUT:
32 *perr = TLDAP_TIMEOUT;
33 break;
34 case TEVENT_REQ_NO_MEMORY:
35 *perr = TLDAP_NO_MEMORY;
36 break;
37 case TEVENT_REQ_USER_ERROR:
38 *perr = err;
39 break;
40 default:
41 *perr = TLDAP_OPERATIONS_ERROR;
42 break;
43 }
44 return true;
45 }
46
47 struct tldap_ctx_attribute {
48 char *name;
49 void *ptr;
50 };
51
52 struct tldap_context {
53 int ld_version;
54 int ld_deref;
55 int ld_sizelimit;
56 int ld_timelimit;
57 struct tstream_context *conn;
58 bool server_down;
59 int msgid;
60 struct tevent_queue *outgoing;
61 struct tevent_req **pending;
62
63 /* For the sync wrappers we need something like get_last_error... */
64 struct tldap_message *last_msg;
65
66 /* debug */
67 void (*log_fn)(void *context, enum tldap_debug_level level,
68 const char *fmt, va_list ap);
69 void *log_private;
70
71 struct tldap_ctx_attribute *ctx_attrs;
72 };
73
74 struct tldap_message {
75 struct asn1_data *data;
76 uint8_t *inbuf;
77 int type;
78 int id;
79
80 /* RESULT_ENTRY */
81 char *dn;
82 struct tldap_attribute *attribs;
83
84 /* Error data sent by the server */
85 int lderr;
86 char *res_matcheddn;
87 char *res_diagnosticmessage;
88 char *res_referral;
89 struct tldap_control *res_sctrls;
90
91 /* Controls sent by the server */
92 struct tldap_control *ctrls;
93 };
94
95 void tldap_set_debug(struct tldap_context *ld,
96 void (*log_fn)(void *log_private,
97 enum tldap_debug_level level,
98 const char *fmt,
99 va_list ap) PRINTF_ATTRIBUTE(3,0),
100 void *log_private)
101 {
102 ld->log_fn = log_fn;
103 ld->log_private = log_private;
104 }
105
106 static void tldap_debug(struct tldap_context *ld,
107 enum tldap_debug_level level,
108 const char *fmt, ...)
109 {
110 va_list ap;
111 if (!ld) {
112 return;
113 }
114 if (ld->log_fn == NULL) {
115 return;
116 }
117 va_start(ap, fmt);
118 ld->log_fn(ld->log_private, level, fmt, ap);
119 va_end(ap);
120 }
121
122 static int tldap_next_msgid(struct tldap_context *ld)
123 {
124 int result;
125
126 result = ld->msgid++;
127 if (ld->msgid == 2147483647) {
128 ld->msgid = 1;
129 }
130 return result;
131 }
132
133 struct tldap_context *tldap_context_create(TALLOC_CTX *mem_ctx, int fd)
134 {
135 struct tldap_context *ctx;
136 int ret;
137
138 ctx = talloc_zero(mem_ctx, struct tldap_context);
139 if (ctx == NULL) {
140 return NULL;
141 }
142 ret = tstream_bsd_existing_socket(ctx, fd, &ctx->conn);
143 if (ret == -1) {
144 TALLOC_FREE(ctx);
145 return NULL;
146 }
147 ctx->msgid = 1;
148 ctx->ld_version = 3;
149 ctx->outgoing = tevent_queue_create(ctx, "tldap_outgoing");
150 if (ctx->outgoing == NULL) {
151 TALLOC_FREE(ctx);
152 return NULL;
153 }
154 return ctx;
155 }
156
157 bool tldap_connection_ok(struct tldap_context *ld)
158 {
159 if (ld == NULL) {
160 return false;
161 }
162 return !ld->server_down;
163 }
164
165 static struct tldap_ctx_attribute *tldap_context_findattr(
166 struct tldap_context *ld, const char *name)
167 {
168 int i, num_attrs;
169
170 num_attrs = talloc_array_length(ld->ctx_attrs);
171
172 for (i=0; i<num_attrs; i++) {
173 if (strcmp(ld->ctx_attrs[i].name, name) == 0) {
174 return &ld->ctx_attrs[i];
175 }
176 }
177 return NULL;
178 }
179
180 bool tldap_context_setattr(struct tldap_context *ld,
181 const char *name, const void *_pptr)
182 {
183 struct tldap_ctx_attribute *tmp, *attr;
184 char *tmpname;
185 int num_attrs;
186 void **pptr = (void **)_pptr;
187
188 attr = tldap_context_findattr(ld, name);
189 if (attr != NULL) {
190 /*
191 * We don't actually delete attrs, we don't expect tons of
192 * attributes being shuffled around.
193 */
194 TALLOC_FREE(attr->ptr);
195 if (*pptr != NULL) {
196 attr->ptr = talloc_move(ld->ctx_attrs, pptr);
197 *pptr = NULL;
198 }
199 return true;
200 }
201
202 tmpname = talloc_strdup(ld, name);
203 if (tmpname == NULL) {
204 return false;
205 }
206
207 num_attrs = talloc_array_length(ld->ctx_attrs);
208
209 tmp = talloc_realloc(ld, ld->ctx_attrs, struct tldap_ctx_attribute,
210 num_attrs+1);
211 if (tmp == NULL) {
212 TALLOC_FREE(tmpname);
213 return false;
214 }
215 tmp[num_attrs].name = talloc_move(tmp, &tmpname);
216 if (*pptr != NULL) {
217 tmp[num_attrs].ptr = talloc_move(tmp, pptr);
218 } else {
219 tmp[num_attrs].ptr = NULL;
220 }
221 *pptr = NULL;
222 ld->ctx_attrs = tmp;
223 return true;
224 }
225
226 void *tldap_context_getattr(struct tldap_context *ld, const char *name)
227 {
228 struct tldap_ctx_attribute *attr = tldap_context_findattr(ld, name);
229
230 if (attr == NULL) {
231 return NULL;
232 }
233 return attr->ptr;
234 }
235
236 struct read_ldap_state {
237 uint8_t *buf;
238 bool done;
239 };
240
241 static ssize_t read_ldap_more(uint8_t *buf, size_t buflen, void *private_data);
242 static void read_ldap_done(struct tevent_req *subreq);
243
244 static struct tevent_req *read_ldap_send(TALLOC_CTX *mem_ctx,
245 struct tevent_context *ev,
246 struct tstream_context *conn)
247 {
248 struct tevent_req *req, *subreq;
249 struct read_ldap_state *state;
250
251 req = tevent_req_create(mem_ctx, &state, struct read_ldap_state);
252 if (req == NULL) {
253 return NULL;
254 }
255 state->done = false;
256
257 subreq = tstream_read_packet_send(state, ev, conn, 2, read_ldap_more,
258 state);
259 if (tevent_req_nomem(subreq, req)) {
260 return tevent_req_post(req, ev);
261 }
262 tevent_req_set_callback(subreq, read_ldap_done, req);
263 return req;
264 }
265
266 static ssize_t read_ldap_more(uint8_t *buf, size_t buflen, void *private_data)
267 {
268 struct read_ldap_state *state = talloc_get_type_abort(
269 private_data, struct read_ldap_state);
270 size_t len;
271 int i, lensize;
272
273 if (state->done) {
274 /* We've been here, we're done */
275 return 0;
276 }
277
278 /*
279 * From ldap.h: LDAP_TAG_MESSAGE is 0x30
280 */
281 if (buf[0] != 0x30) {
282 return -1;
283 }
284
285 len = buf[1];
286 if ((len & 0x80) == 0) {
287 state->done = true;
288 return len;
289 }
290
291 lensize = (len & 0x7f);
292 len = 0;
293
294 if (buflen == 2) {
295 /* Please get us the full length */
296 return lensize;
297 }
298 if (buflen > 2 + lensize) {
299 state->done = true;
300 return 0;
301 }
302 if (buflen != 2 + lensize) {
303 return -1;
304 }
305
306 for (i=0; i<lensize; i++) {
307 len = (len << 8) | buf[2+i];
308 }
309 return len;
310 }
311
312 static void read_ldap_done(struct tevent_req *subreq)
313 {
314 struct tevent_req *req = tevent_req_callback_data(
315 subreq, struct tevent_req);
316 struct read_ldap_state *state = tevent_req_data(
317 req, struct read_ldap_state);
318 ssize_t nread;
319 int err;
320
321 nread = tstream_read_packet_recv(subreq, state, &state->buf, &err);
322 TALLOC_FREE(subreq);
323 if (nread == -1) {
324 tevent_req_error(req, err);
325 return;
326 }
327 tevent_req_done(req);
328 }
329
330 static ssize_t read_ldap_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
331 uint8_t **pbuf, int *perrno)
332 {
333 struct read_ldap_state *state = tevent_req_data(
334 req, struct read_ldap_state);
335
336 if (tevent_req_is_unix_error(req, perrno)) {
337 return -1;
338 }
339 *pbuf = talloc_move(mem_ctx, &state->buf);
340 return talloc_get_size(*pbuf);
341 }
342
343 struct tldap_msg_state {
344 struct tldap_context *ld;
345 struct tevent_context *ev;
346 int id;
347 struct iovec iov;
348
349 struct asn1_data *data;
350 uint8_t *inbuf;
351 };
352
353 static void tldap_push_controls(struct asn1_data *data,
354 struct tldap_control *sctrls,
355 int num_sctrls)
356 {
357 int i;
358
359 if ((sctrls == NULL) || (num_sctrls == 0)) {
360 return;
361 }
362
363 asn1_push_tag(data, ASN1_CONTEXT(0));
364
365 for (i=0; i<num_sctrls; i++) {
366 struct tldap_control *c = &sctrls[i];
367 asn1_push_tag(data, ASN1_SEQUENCE(0));
368 asn1_write_OctetString(data, c->oid, strlen(c->oid));
369 if (c->critical) {
370 asn1_write_BOOLEAN(data, true);
371 }
372 if (c->value.data != NULL) {
373 asn1_write_OctetString(data, c->value.data,
374 c->value.length);
375 }
376 asn1_pop_tag(data); /* ASN1_SEQUENCE(0) */
377 }
378
379 asn1_pop_tag(data); /* ASN1_CONTEXT(0) */
380 }
381
382 static void tldap_msg_sent(struct tevent_req *subreq);
383 static void tldap_msg_received(struct tevent_req *subreq);
384
385 static struct tevent_req *tldap_msg_send(TALLOC_CTX *mem_ctx,
386 struct tevent_context *ev,
387 struct tldap_context *ld,
388 int id, struct asn1_data *data,
389 struct tldap_control *sctrls,
390 int num_sctrls)
391 {
392 struct tevent_req *req, *subreq;
393 struct tldap_msg_state *state;
394 DATA_BLOB blob;
395
396 tldap_debug(ld, TLDAP_DEBUG_TRACE, "tldap_msg_send: sending msg %d\n",
397 id);
398
399 req = tevent_req_create(mem_ctx, &state, struct tldap_msg_state);
400 if (req == NULL) {
401 return NULL;
402 }
403 state->ld = ld;
404 state->ev = ev;
405 state->id = id;
406
407 if (state->ld->server_down) {
408 tevent_req_error(req, TLDAP_SERVER_DOWN);
409 return tevent_req_post(req, ev);
410 }
411
412 tldap_push_controls(data, sctrls, num_sctrls);
413
414 asn1_pop_tag(data);
415
416 if (!asn1_blob(data, &blob)) {
417 tevent_req_error(req, TLDAP_ENCODING_ERROR);
418 return tevent_req_post(req, ev);
419 }
420
421 state->iov.iov_base = blob.data;
422 state->iov.iov_len = blob.length;
423
424 subreq = tstream_writev_queue_send(state, ev, ld->conn, ld->outgoing,
425 &state->iov, 1);
426 if (tevent_req_nomem(subreq, req)) {
427 return tevent_req_post(req, ev);
428 }
429 tevent_req_set_callback(subreq, tldap_msg_sent, req);
430 return req;
431 }
432
433 static void tldap_msg_unset_pending(struct tevent_req *req)
434 {
435 struct tldap_msg_state *state = tevent_req_data(
436 req, struct tldap_msg_state);
437 struct tldap_context *ld = state->ld;
438 int num_pending = talloc_array_length(ld->pending);
439 int i;
440
441 if (num_pending == 1) {
442 TALLOC_FREE(ld->pending);
443 return;
444 }
445
446 for (i=0; i<num_pending; i++) {
447 if (req == ld->pending[i]) {
448 break;
449 }
450 }
451 if (i == num_pending) {
452 /*
453 * Something's seriously broken. Just returning here is the
454 * right thing nevertheless, the point of this routine is to
455 * remove ourselves from cli->pending.
456 */
457 return;
458 }
459
460 /*
461 * Remove ourselves from the cli->pending array
462 */
463 if (num_pending > 1) {
464 ld->pending[i] = ld->pending[num_pending-1];
465 }
466
467 /*
468 * No NULL check here, we're shrinking by sizeof(void *), and
469 * talloc_realloc just adjusts the size for this.
470 */
471 ld->pending = talloc_realloc(NULL, ld->pending, struct tevent_req *,
472 num_pending - 1);
473 return;
474 }
475
476 static int tldap_msg_destructor(struct tevent_req *req)
477 {
478 tldap_msg_unset_pending(req);
479 return 0;
480 }
481
482 static bool tldap_msg_set_pending(struct tevent_req *req)
483 {
484 struct tldap_msg_state *state = tevent_req_data(
485 req, struct tldap_msg_state);
486 struct tldap_context *ld;
487 struct tevent_req **pending;
488 int num_pending;
489 struct tevent_req *subreq;
490
491 ld = state->ld;
492 num_pending = talloc_array_length(ld->pending);
493
494 pending = talloc_realloc(ld, ld->pending, struct tevent_req *,
495 num_pending+1);
496 if (pending == NULL) {
497 return false;
498 }
499 pending[num_pending] = req;
500 ld->pending = pending;
501 talloc_set_destructor(req, tldap_msg_destructor);
502
503 if (num_pending > 0) {
504 return true;
505 }
506
507 /*
508 * We're the first ones, add the read_ldap request that waits for the
509 * answer from the server
510 */
511 subreq = read_ldap_send(ld->pending, state->ev, ld->conn);
512 if (subreq == NULL) {
513 tldap_msg_unset_pending(req);
514 return false;
515 }
516 tevent_req_set_callback(subreq, tldap_msg_received, ld);
517 return true;
518 }
519
520 static void tldap_msg_sent(struct tevent_req *subreq)
521 {
522 struct tevent_req *req = tevent_req_callback_data(
523 subreq, struct tevent_req);
524 struct tldap_msg_state *state = tevent_req_data(
525 req, struct tldap_msg_state);
526 ssize_t nwritten;
527 int err;
528
529 nwritten = tstream_writev_queue_recv(subreq, &err);
530 TALLOC_FREE(subreq);
531 if (nwritten == -1) {
532 state->ld->server_down = true;
533 tevent_req_error(req, TLDAP_SERVER_DOWN);
534 return;
535 }
536
537 if (!tldap_msg_set_pending(req)) {
538 tevent_req_nomem(NULL, req);
539 return;
540 }
541 }
542
543 static int tldap_msg_msgid(struct tevent_req *req)
544 {
545 struct tldap_msg_state *state = tevent_req_data(
546 req, struct tldap_msg_state);
547
548 return state->id;
549 }
550
551 static void tldap_msg_received(struct tevent_req *subreq)
552 {
553 struct tldap_context *ld = tevent_req_callback_data(
554 subreq, struct tldap_context);
555 struct tevent_req *req;
556 struct tldap_msg_state *state;
557 struct tevent_context *ev;
558 struct asn1_data *data;
559 uint8_t *inbuf;
560 ssize_t received;
561 size_t num_pending;
562 int i, err, status;
563 int id;
564 uint8_t type;
565 bool ok;
566
567 received = read_ldap_recv(subreq, talloc_tos(), &inbuf, &err);
568 TALLOC_FREE(subreq);
569 if (received == -1) {
570 status = TLDAP_SERVER_DOWN;
571 goto fail;
572 }
573
574 data = asn1_init(talloc_tos());
575 if (data == NULL) {
576 status = TLDAP_NO_MEMORY;
577 goto fail;
578 }
579 asn1_load_nocopy(data, inbuf, received);
580
581 ok = true;
582 ok &= asn1_start_tag(data, ASN1_SEQUENCE(0));
583 ok &= asn1_read_Integer(data, &id);
584 ok &= asn1_peek_uint8(data, &type);
585
586 if (!ok) {
587 status = TLDAP_PROTOCOL_ERROR;
588 goto fail;
589 }
590
591 tldap_debug(ld, TLDAP_DEBUG_TRACE, "tldap_msg_received: got msg %d "
592 "type %d\n", id, (int)type);
593
594 num_pending = talloc_array_length(ld->pending);
595
596 for (i=0; i<num_pending; i++) {
597 if (id == tldap_msg_msgid(ld->pending[i])) {
598 break;
599 }
600 }
601 if (i == num_pending) {
602 /* Dump unexpected reply */
603 tldap_debug(ld, TLDAP_DEBUG_WARNING, "tldap_msg_received: "
604 "No request pending for msg %d\n", id);
605 TALLOC_FREE(data);
606 TALLOC_FREE(inbuf);
607 goto done;
608 }
609
610 req = ld->pending[i];
611 state = tevent_req_data(req, struct tldap_msg_state);
612
613 state->inbuf = talloc_move(state, &inbuf);
614 state->data = talloc_move(state, &data);
615
616 ev = state->ev;
617
618 talloc_set_destructor(req, NULL);
619 tldap_msg_unset_pending(req);
620 num_pending = talloc_array_length(ld->pending);
621
622 tevent_req_done(req);
623
624 done:
625 if (num_pending == 0) {
626 return;
627 }
628 if (talloc_array_length(ld->pending) > num_pending) {
629 /*
630 * The callback functions called from tevent_req_done() above
631 * have put something on the pending queue. We don't have to
632 * trigger the read_ldap_send(), tldap_msg_set_pending() has
633 * done it for us already.
634 */
635 return;
636 }
637
638 state = tevent_req_data(ld->pending[0], struct tldap_msg_state);
639 subreq = read_ldap_send(ld->pending, state->ev, ld->conn);
640 if (subreq == NULL) {
641 status = TLDAP_NO_MEMORY;
642 goto fail;
643 }
644 tevent_req_set_callback(subreq, tldap_msg_received, ld);
645 return;
646
647 fail:
648 while (talloc_array_length(ld->pending) > 0) {
649 req = ld->pending[0];
650 talloc_set_destructor(req, NULL);
651 tldap_msg_destructor(req);
652 tevent_req_error(req, status);
653 }
654 }
655
656 static int tldap_msg_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
657 struct tldap_message **pmsg)
658 {
659 struct tldap_msg_state *state = tevent_req_data(
660 req, struct tldap_msg_state);
661 struct tldap_message *msg;
662 int err;
663 uint8_t msgtype;
664
665 if (tevent_req_is_ldap_error(req, &err)) {
666 return err;
667 }
668
669 if (!asn1_peek_uint8(state->data, &msgtype)) {
670 return TLDAP_PROTOCOL_ERROR;
671 }
672
673 if (pmsg == NULL) {
674 return TLDAP_SUCCESS;
675 }
676
677 msg = talloc_zero(mem_ctx, struct tldap_message);
678 if (msg == NULL) {
679 return TLDAP_NO_MEMORY;
680 }
681 msg->id = state->id;
682
683 msg->inbuf = talloc_move(msg, &state->inbuf);
684 msg->data = talloc_move(msg, &state->data);
685 msg->type = msgtype;
686
687 *pmsg = msg;
688 return TLDAP_SUCCESS;
689 }
690
691 struct tldap_req_state {
692 int id;
693 struct asn1_data *out;
694 struct tldap_message *result;
695 };
696
697 static struct tevent_req *tldap_req_create(TALLOC_CTX *mem_ctx,
698 struct tldap_context *ld,
699 struct tldap_req_state **pstate)
700 {
701 struct tevent_req *req;
702 struct tldap_req_state *state;
703
704 req = tevent_req_create(mem_ctx, &state, struct tldap_req_state);
705 if (req == NULL) {
706 return NULL;
707 }
708 ZERO_STRUCTP(state);
709 state->out = asn1_init(state);
710 if (state->out == NULL) {
711 TALLOC_FREE(req);
712 return NULL;
713 }
714 state->result = NULL;
715 state->id = tldap_next_msgid(ld);
716
717 asn1_push_tag(state->out, ASN1_SEQUENCE(0));
718 asn1_write_Integer(state->out, state->id);
719
720 *pstate = state;
721 return req;
722 }
723
724 static void tldap_save_msg(struct tldap_context *ld, struct tevent_req *req)
725 {
726 struct tldap_req_state *state = tevent_req_data(
727 req, struct tldap_req_state);
728
729 TALLOC_FREE(ld->last_msg);
730 ld->last_msg = talloc_move(ld, &state->result);
731 }
732
733 static char *blob2string_talloc(TALLOC_CTX *mem_ctx, DATA_BLOB blob)
734 {
735 char *result = talloc_array(mem_ctx, char, blob.length+1);
736 memcpy(result, blob.data, blob.length);
737 result[blob.length] = '\0';
738 return result;
739 }
740
741 static bool asn1_read_OctetString_talloc(TALLOC_CTX *mem_ctx,
742 struct asn1_data *data,
743 char **result)
744 {
745 DATA_BLOB string;
746 if (!asn1_read_OctetString(data, mem_ctx, &string))
747 return false;
748 *result = blob2string_talloc(mem_ctx, string);
749 data_blob_free(&string);
750 return true;
751 }
752
753 static bool tldap_decode_controls(struct tldap_req_state *state);
754
755 static bool tldap_decode_response(struct tldap_req_state *state)
756 {
757 struct asn1_data *data = state->result->data;
758 struct tldap_message *msg = state->result;
759 bool ok = true;
760
761 ok &= asn1_read_enumerated(data, &msg->lderr);
762 ok &= asn1_read_OctetString_talloc(msg, data, &msg->res_matcheddn);
763 ok &= asn1_read_OctetString_talloc(msg, data,
764 &msg->res_diagnosticmessage);
765 if (asn1_peek_tag(data, ASN1_CONTEXT(3))) {
766 ok &= asn1_start_tag(data, ASN1_CONTEXT(3));
767 ok &= asn1_read_OctetString_talloc(msg, data,
768 &msg->res_referral);
769 ok &= asn1_end_tag(data);
770 } else {
771 msg->res_referral = NULL;
772 }
773
774 return ok;
775 }
776
777 static void tldap_sasl_bind_done(struct tevent_req *subreq);
778
779 struct tevent_req *tldap_sasl_bind_send(TALLOC_CTX *mem_ctx,
780 struct tevent_context *ev,
781 struct tldap_context *ld,
782 const char *dn,
783 const char *mechanism,
784 DATA_BLOB *creds,
785 struct tldap_control *sctrls,
786 int num_sctrls,
787 struct tldap_control *cctrls,
788 int num_cctrls)
789 {
790 struct tevent_req *req, *subreq;
791 struct tldap_req_state *state;
792
793 req = tldap_req_create(mem_ctx, ld, &state);
794 if (req == NULL) {
795 return NULL;
796 }
797
798 if (dn == NULL) {
799 dn = "";
800 }
801
802 asn1_push_tag(state->out, TLDAP_REQ_BIND);
803 asn1_write_Integer(state->out, ld->ld_version);
804 asn1_write_OctetString(state->out, dn, (dn != NULL) ? strlen(dn) : 0);
805
806 if (mechanism == NULL) {
807 asn1_push_tag(state->out, ASN1_CONTEXT_SIMPLE(0));
808 asn1_write(state->out, creds->data, creds->length);
809 asn1_pop_tag(state->out);
810 } else {
811 asn1_push_tag(state->out, ASN1_CONTEXT(3));
812 asn1_write_OctetString(state->out, mechanism,
813 strlen(mechanism));
814 if ((creds != NULL) && (creds->data != NULL)) {
815 asn1_write_OctetString(state->out, creds->data,
816 creds->length);
817 }
818 asn1_pop_tag(state->out);
819 }
820
821 if (!asn1_pop_tag(state->out)) {
822 tevent_req_error(req, TLDAP_ENCODING_ERROR);
823 return tevent_req_post(req, ev);
824 }
825
826 subreq = tldap_msg_send(state, ev, ld, state->id, state->out,
827 sctrls, num_sctrls);
828 if (tevent_req_nomem(subreq, req)) {
829 return tevent_req_post(req, ev);
830 }
831 tevent_req_set_callback(subreq, tldap_sasl_bind_done, req);
832 return req;
833 }
834
835 static void tldap_sasl_bind_done(struct tevent_req *subreq)
836 {
837 struct tevent_req *req = tevent_req_callback_data(
838 subreq, struct tevent_req);
839 struct tldap_req_state *state = tevent_req_data(
840 req, struct tldap_req_state);
841 int err;
842
843 err = tldap_msg_recv(subreq, state, &state->result);
844 TALLOC_FREE(subreq);
845 if (err != TLDAP_SUCCESS) {
846 tevent_req_error(req, err);
847 return;
848 }
849 if (state->result->type != TLDAP_RES_BIND) {
850 tevent_req_error(req, TLDAP_PROTOCOL_ERROR);
851 return;
852 }
853 if (!asn1_start_tag(state->result->data, state->result->type) ||
854 !tldap_decode_response(state) ||
855 !asn1_end_tag(state->result->data)) {
856 tevent_req_error(req, TLDAP_DECODING_ERROR);
857 return;
858 }
859 /*
860 * TODO: pull the reply blob
861 */
862 if (state->result->lderr != TLDAP_SUCCESS) {
863 tevent_req_error(req, state->result->lderr);
864 return;
865 }
866 tevent_req_done(req);
867 }
868
869 int tldap_sasl_bind_recv(struct tevent_req *req)
870 {
871 int err;
872
873 if (tevent_req_is_ldap_error(req, &err)) {
874 return err;
875 }
876 return TLDAP_SUCCESS;
877 }
878
879 int tldap_sasl_bind(struct tldap_context *ld,
880 const char *dn,
881 const char *mechanism,
882 DATA_BLOB *creds,
883 struct tldap_control *sctrls,
884 int num_sctrls,
885 struct tldap_control *cctrls,
886 int num_cctrls)
887 {
888 TALLOC_CTX *frame = talloc_stackframe();
889 struct tevent_context *ev;
890 struct tevent_req *req;
891 int result;
892
893 ev = event_context_init(frame);
894 if (ev == NULL) {
895 result = TLDAP_NO_MEMORY;
896 goto fail;
897 }
898
899 req = tldap_sasl_bind_send(frame, ev, ld, dn, mechanism, creds,
900 sctrls, num_sctrls, cctrls, num_cctrls);
901 if (req == NULL) {
902 result = TLDAP_NO_MEMORY;
903 goto fail;
904 }
905
906 if (!tevent_req_poll(req, ev)) {
907 result = TLDAP_OPERATIONS_ERROR;
908 goto fail;
909 }
910
911 result = tldap_sasl_bind_recv(req);
912 tldap_save_msg(ld, req);
913 fail:
914 TALLOC_FREE(frame);
915 return result;
916 }
917
918 struct tevent_req *tldap_simple_bind_send(TALLOC_CTX *mem_ctx,
919 struct tevent_context *ev,
920 struct tldap_context *ld,
921 const char *dn,
922 const char *passwd)
923 {
924 DATA_BLOB cred;
925
926 if (passwd != NULL) {
927 cred.data = (uint8_t *)passwd;
928 cred.length = strlen(passwd);
929 } else {
930 cred.data = (uint8_t *)"";
931 cred.length = 0;
932 }
933 return tldap_sasl_bind_send(mem_ctx, ev, ld, dn, NULL, &cred, NULL, 0,
934 NULL, 0);
935 }
936
937 int tldap_simple_bind_recv(struct tevent_req *req)
938 {
939 return tldap_sasl_bind_recv(req);
940 }
941
942 int tldap_simple_bind(struct tldap_context *ld, const char *dn,
943 const char *passwd)
944 {
945 DATA_BLOB cred;
946
947 if (passwd != NULL) {
948 cred.data = (uint8_t *)passwd;
949 cred.length = strlen(passwd);
950 } else {
951 cred.data = (uint8_t *)"";
952 cred.length = 0;
953 }
954 return tldap_sasl_bind(ld, dn, NULL, &cred, NULL, 0, NULL, 0);
955 }
956
957 /*****************************************************************************/
958
959 /* can't use isalpha() as only a strict set is valid for LDAP */
960
961 static bool tldap_is_alpha(char c)
962 {
963 return (((c >= 'a') && (c <= 'z')) || \
964 ((c >= 'A') && (c <= 'Z')));
965 }
966
967 static bool tldap_is_adh(char c)
968 {
969 return tldap_is_alpha(c) || isdigit(c) || (c == '-');
970 }
971
972 #define TLDAP_FILTER_AND ASN1_CONTEXT(0)
973 #define TLDAP_FILTER_OR ASN1_CONTEXT(1)
974 #define TLDAP_FILTER_NOT ASN1_CONTEXT(2)
975 #define TLDAP_FILTER_EQ ASN1_CONTEXT(3)
976 #define TLDAP_FILTER_SUB ASN1_CONTEXT(4)
977 #define TLDAP_FILTER_LE ASN1_CONTEXT(5)
978 #define TLDAP_FILTER_GE ASN1_CONTEXT(6)
979 #define TLDAP_FILTER_PRES ASN1_CONTEXT_SIMPLE(7)
980 #define TLDAP_FILTER_APX ASN1_CONTEXT(8)
981 #define TLDAP_FILTER_EXT ASN1_CONTEXT(9)
982
983 #define TLDAP_SUB_INI ASN1_CONTEXT_SIMPLE(0)
984 #define TLDAP_SUB_ANY ASN1_CONTEXT_SIMPLE(1)
985 #define TLDAP_SUB_FIN ASN1_CONTEXT_SIMPLE(2)
986
987
988 /* oid's should be numerical only in theory,
989 * but apparently some broken servers may have alphanum aliases instead.
990 * Do like openldap libraries and allow alphanum aliases for oids, but
991 * do not allow Tagging options in that case.
992 */
993 static bool tldap_is_attrdesc(const char *s, int len, bool no_tagopts)
994 {
995 bool is_oid = false;
996 bool dot = false;
997 int i;
998
999 /* first char has stricter rules */
1000 if (isdigit(*s)) {
1001 is_oid = true;
1002 } else if (!tldap_is_alpha(*s)) {
1003 /* bad first char */
1004 return false;
1005 }
1006
1007 for (i = 1; i < len; i++) {
1008
1009 if (is_oid) {
1010 if (isdigit(s[i])) {
1011 dot = false;
1012 continue;
1013 }
1014 if (s[i] == '.') {
1015 if (dot) {
1016 /* malformed */
1017 return false;
1018 }
1019 dot = true;
1020 continue;
1021 }
1022 } else {
1023 if (tldap_is_adh(s[i])) {
1024 continue;
1025 }
1026 }
1027
1028 if (s[i] == ';') {
1029 if (no_tagopts) {
1030 /* no tagging options */
1031 return false;
1032 }
1033 if (dot) {
1034 /* malformed */
1035 return false;
1036 }
1037 if ((i + 1) == len) {
1038 /* malformed */
1039 return false;
1040 }
1041
1042 is_oid = false;
1043 continue;
1044 }
1045 }
1046
1047 if (dot) {
1048 /* malformed */
1049 return false;
1050 }
1051
1052 return true;
1053 }
1054
1055 /* this function copies the value until the closing parenthesis is found. */
1056 static char *tldap_get_val(TALLOC_CTX *memctx,
1057 const char *value, const char **_s)
1058 {
1059 const char *s = value;
1060
1061 /* find terminator */
1062 while (*s) {
1063 s = strchr(s, ')');
1064 if (s && (*(s - 1) == '\\')) {
1065 continue;
1066 }
1067 break;
1068 }
1069 if (!s || !(*s == ')')) {
1070 /* malformed filter */
1071 return NULL;
1072 }
1073
1074 *_s = s;
1075
1076 return talloc_strndup(memctx, value, s - value);
1077 }
1078
1079 static int tldap_hex2char(const char *x)
1080 {
1081 if (isxdigit(x[0]) && isxdigit(x[1])) {
1082 const char h1 = x[0], h2 = x[1];
1083 int c;
1084
1085 if (h1 >= 'a') c = h1 - (int)'a' + 10;
1086 else if (h1 >= 'A') c = h1 - (int)'A' + 10;
1087 else if (h1 >= '0') c = h1 - (int)'0';
1088 c = c << 4;
1089 if (h2 >= 'a') c += h2 - (int)'a' + 10;
1090 else if (h2 >= 'A') c += h2 - (int)'A' + 10;
1091 else if (h2 >= '0') c += h2 - (int)'0';
1092
1093 return c;
1094 }
1095
1096 return -1;
1097 }
1098
1099 static bool tldap_find_first_star(const char *val, const char **star)
1100 {
1101 const char *s;
1102
1103 for (s = val; *s; s++) {
1104 switch (*s) {
1105 case '\\':
1106 if (isxdigit(s[1]) && isxdigit(s[2])) {
1107 s += 2;
1108 break;
1109 }
1110 /* not hex based escape, check older syntax */
1111 switch (s[1]) {
1112 case '(':
1113 case ')':
1114 case '*':
1115 case '\\':
1116 s++;
1117 break;
1118 default:
1119 /* invalid escape sequence */
1120 return false;
1121 }
1122 break;
1123 case ')':
1124 /* end of val, nothing found */
1125 *star = s;
1126 return true;
1127
1128 case '*':
1129 *star = s;
1130 return true;
1131 }
1132 }
1133
1134 /* string ended without closing parenthesis, filter is malformed */
1135 return false;
1136 }
1137
1138 static bool tldap_unescape_inplace(char *value, size_t *val_len)
1139 {
1140 int c, i, p;
1141
1142 for (i = 0,p = 0; i < *val_len; i++) {
1143
1144 switch (value[i]) {
1145 case '(':
1146 case ')':
1147 case '*':
1148 /* these must be escaped */
1149 return false;
1150
1151 case '\\':
1152 if (!value[i + 1]) {
1153 /* invalid EOL */
1154 return false;
1155 }
1156 i++;
1157
1158 c = tldap_hex2char(&value[i]);
1159 if (c >= 0 && c < 256) {
1160 value[p] = c;
1161 i++;
1162 p++;
1163 break;
1164 }
1165
1166 switch (value[i]) {
1167 case '(':
1168 case ')':
1169 case '*':
1170 case '\\':
1171 value[p] = value[i];
1172 p++;
1173 default:
1174 /* invalid */
1175 return false;
1176 }
1177 break;
1178
1179 default:
1180 value[p] = value[i];
1181 p++;
1182 }
1183 }
1184 value[p] = '\0';
1185 *val_len = p;
1186 return true;
1187 }
1188
1189 static bool tldap_push_filter_basic(struct tldap_context *ld,
1190 struct asn1_data *data,
1191 const char **_s);
1192 static bool tldap_push_filter_substring(struct tldap_context *ld,
1193 struct asn1_data *data,
1194 const char *val,
1195 const char **_s);
1196 static bool tldap_push_filter_int(struct tldap_context *ld,
1197 struct asn1_data *data,
1198 const char **_s)
1199 {
1200 const char *s = *_s;
1201 bool ret;
1202
1203 if (*s != '(') {
1204 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1205 "Incomplete or malformed filter\n");
1206 return false;
1207 }
1208 s++;
1209
1210 /* we are right after a parenthesis,
1211 * find out what op we have at hand */
1212 switch (*s) {
1213 case '&':
1214 tldap_debug(ld, TLDAP_DEBUG_TRACE, "Filter op: AND\n");
1215 asn1_push_tag(data, TLDAP_FILTER_AND);
1216 s++;
1217 break;
1218
1219 case '|':
1220 tldap_debug(ld, TLDAP_DEBUG_TRACE, "Filter op: OR\n");
1221 asn1_push_tag(data, TLDAP_FILTER_OR);
1222 s++;
1223 break;
1224
1225 case '!':
1226 tldap_debug(ld, TLDAP_DEBUG_TRACE, "Filter op: NOT\n");
1227 asn1_push_tag(data, TLDAP_FILTER_NOT);
1228 s++;
1229 ret = tldap_push_filter_int(ld, data, &s);
1230 if (!ret) {
1231 return false;
1232 }
1233 asn1_pop_tag(data);
1234 goto done;
1235
1236 case '(':
1237 case ')':
1238 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1239 "Invalid parenthesis '%c'\n", *s);
1240 return false;
1241
1242 case '\0':
1243 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1244 "Invalid filter termination\n");
1245 return false;
1246
1247 default:
1248 ret = tldap_push_filter_basic(ld, data, &s);
1249 if (!ret) {
1250 return false;
1251 }
1252 goto done;
1253 }
1254
1255 /* only and/or filters get here.
1256 * go through the list of filters */
1257
1258 if (*s == ')') {
1259 /* RFC 4526: empty and/or */
1260 asn1_pop_tag(data);
1261 goto done;
1262 }
1263
1264 while (*s) {
1265 ret = tldap_push_filter_int(ld, data, &s);
1266 if (!ret) {
1267 return false;
1268 }
1269
1270 if (*s == ')') {
1271 /* end of list, return */
1272 asn1_pop_tag(data);
1273 break;
1274 }
1275 }
1276
1277 done:
1278 if (*s != ')') {
1279 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1280 "Incomplete or malformed filter\n");
1281 return false;
1282 }
1283 s++;
1284
1285 if (data->has_error) {
1286 return false;
1287 }
1288
1289 *_s = s;
1290 return true;
1291 }
1292
1293
1294 static bool tldap_push_filter_basic(struct tldap_context *ld,
1295 struct asn1_data *data,
1296 const char **_s)
1297 {
1298 TALLOC_CTX *tmpctx = talloc_tos();
1299 const char *s = *_s;
1300 const char *e;
1301 const char *eq;
1302 const char *val;
1303 const char *type;
1304 const char *dn;
1305 const char *rule;
1306 const char *star;
1307 size_t type_len;
1308 char *uval;
1309 size_t uval_len;
1310 bool write_octect = true;
1311 bool ret;
1312
1313 eq = strchr(s, '=');
1314 if (!eq) {
1315 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1316 "Invalid filter, missing equal sign\n");
1317 return false;
1318 }
1319
1320 val = eq + 1;
1321 e = eq - 1;
1322
1323 switch (*e) {
1324 case '<':
1325 asn1_push_tag(data, TLDAP_FILTER_LE);
1326 break;
1327
1328 case '>':
1329 asn1_push_tag(data, TLDAP_FILTER_GE);
1330 break;
1331
1332 case '~':
1333 asn1_push_tag(data, TLDAP_FILTER_APX);
1334 break;
1335
1336 case ':':
1337 asn1_push_tag(data, TLDAP_FILTER_EXT);
1338 write_octect = false;
1339
1340 type = NULL;
1341 dn = NULL;
1342 rule = NULL;
1343
1344 if (*s == ':') { /* [:dn]:rule:= value */
1345 if (s == e) {
1346 /* malformed filter */
1347 return false;
1348 }
1349 dn = s;
1350 } else { /* type[:dn][:rule]:= value */
1351 type = s;
1352 dn = strchr(s, ':');
1353 type_len = dn - type;
1354 if (dn == e) { /* type:= value */
1355 dn = NULL;
1356 }
1357 }
1358 if (dn) {
1359 dn++;
1360
1361 rule = strchr(dn, ':');
1362 if ((rule == dn + 1) || rule + 1 == e) {
1363 /* malformed filter, contains "::" */
1364 return false;
1365 }
1366
1367 if (StrnCaseCmp(dn, "dn:", 3) != 0) {
1368 if (rule == e) {
1369 rule = dn;
1370 dn = NULL;
1371 } else {
1372 /* malformed filter. With two
1373 * optionals, the first must be "dn"
1374 */
1375 return false;
1376 }
1377 } else {
1378 if (rule == e) {
1379 rule = NULL;
1380 } else {
1381 rule++;
1382 }
1383 }
1384 }
1385
1386 if (!type && !dn && !rule) {
1387 /* malformed filter, there must be at least one */
1388 return false;
1389 }
1390
1391 /*
1392 MatchingRuleAssertion ::= SEQUENCE {
1393 matchingRule [1] MatchingRuleID OPTIONAL,
1394 type [2] AttributeDescription OPTIONAL,
1395 matchValue [3] AssertionValue,
1396 dnAttributes [4] BOOLEAN DEFAULT FALSE
1397 }
1398 */
1399
1400 /* check and add rule */
1401 if (rule) {
1402 ret = tldap_is_attrdesc(rule, e - rule, true);
1403 if (!ret) {
1404 return false;
1405 }
1406 asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(1));
1407 asn1_write(data, rule, e - rule);
1408 asn1_pop_tag(data);
1409 }
1410
1411 /* check and add type */
1412 if (type) {
1413 ret = tldap_is_attrdesc(type, type_len, false);
1414 if (!ret) {
1415 return false;
1416 }
1417 asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(2));
1418 asn1_write(data, type, type_len);
1419 asn1_pop_tag(data);
1420 }
1421
1422 uval = tldap_get_val(tmpctx, val, _s);
1423 if (!uval) {
1424 return false;
1425 }
1426 uval_len = *_s - val;
1427 ret = tldap_unescape_inplace(uval, &uval_len);
1428 if (!ret) {
1429 return false;
1430 }
1431
1432 asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(3));
1433 asn1_write(data, uval, uval_len);
1434 asn1_pop_tag(data);
1435
1436 asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(4));
1437 asn1_write_uint8(data, dn?1:0);
1438 asn1_pop_tag(data);
1439 break;
1440
1441 default:
1442 e = eq;
1443
1444 ret = tldap_is_attrdesc(s, e - s, false);
1445 if (!ret) {
1446 return false;
1447 }
1448
1449 if (strncmp(val, "*)", 2) == 0) {
1450 /* presence */
1451 asn1_push_tag(data, TLDAP_FILTER_PRES);
1452 asn1_write(data, s, e - s);
1453 *_s = val + 1;
1454 write_octect = false;
1455 break;
1456 }
1457
1458 ret = tldap_find_first_star(val, &star);
1459 if (!ret) {
1460 return false;
1461 }
1462 if (*star == '*') {
1463 /* substring */
1464 asn1_push_tag(data, TLDAP_FILTER_SUB);
1465 asn1_write_OctetString(data, s, e - s);
1466 ret = tldap_push_filter_substring(ld, data, val, &s);
1467 if (!ret) {
1468 return false;
1469 }
1470 *_s = s;
1471 write_octect = false;
1472 break;
1473 }
1474
1475 /* if nothing else, then it is just equality */
1476 asn1_push_tag(data, TLDAP_FILTER_EQ);
1477 write_octect = true;
1478 break;
1479 }
1480
1481 if (write_octect) {
1482 uval = tldap_get_val(tmpctx, val, _s);
1483 if (!uval) {
1484 return false;
1485 }
1486 uval_len = *_s - val;
1487 ret = tldap_unescape_inplace(uval, &uval_len);
1488 if (!ret) {
1489 return false;
1490 }
1491
1492 asn1_write_OctetString(data, s, e - s);
1493 asn1_write_OctetString(data, uval, uval_len);
1494 }
1495
1496 if (data->has_error) {
1497 return false;
1498 }
1499 asn1_pop_tag(data);
1500 return true;
1501 }
1502
1503 static bool tldap_push_filter_substring(struct tldap_context *ld,
1504 struct asn1_data *data,
1505 const char *val,
1506 const char **_s)
1507 {
1508 TALLOC_CTX *tmpctx = talloc_tos();
1509 bool initial = true;
1510 const char *star;
1511 char *chunk;
1512 size_t chunk_len;
1513 bool ret;
1514
1515 /*
1516 SubstringFilter ::= SEQUENCE {
1517 type AttributeDescription,
1518 -- at least one must be present
1519 substrings SEQUENCE OF CHOICE {
1520 initial [0] LDAPString,
1521 any [1] LDAPString,
1522 final [2] LDAPString } }
1523 */
1524 asn1_push_tag(data, ASN1_SEQUENCE(0));
1525
1526 do {
1527 ret = tldap_find_first_star(val, &star);
1528 if (!ret) {
1529 return false;
1530 }
1531 chunk_len = star - val;
1532
1533 switch (*star) {
1534 case '*':
1535 if (!initial && chunk_len == 0) {
1536 /* found '**', which is illegal */
1537 return false;
1538 }
1539 break;
1540 case ')':
1541 if (initial) {
1542 /* no stars ?? */
1543 return false;
1544 }
1545 /* we are done */
1546 break;
1547 default:
1548 /* ?? */
1549 return false;
1550 }
1551
1552 if (initial && chunk_len == 0) {
1553 val = star + 1;
1554 initial = false;
1555 continue;
1556 }
1557
1558 chunk = talloc_strndup(tmpctx, val, chunk_len);
1559 if (!chunk) {
1560 return false;
1561 }
1562 ret = tldap_unescape_inplace(chunk, &chunk_len);
1563 if (!ret) {
1564 return false;
1565 }
1566 switch (*star) {
1567 case '*':
1568 if (initial) {
1569 asn1_push_tag(data, TLDAP_SUB_INI);
1570 initial = false;
1571 } else {
1572 asn1_push_tag(data, TLDAP_SUB_ANY);
1573 }
1574 break;
1575 case ')':
1576 asn1_push_tag(data, TLDAP_SUB_FIN);
1577 break;
1578 default:
1579 /* ?? */
1580 return false;
1581 }
1582 asn1_write(data, chunk, chunk_len);
1583 asn1_pop_tag(data);
1584
1585 val = star + 1;
1586
1587 } while (*star == '*');
1588
1589 *_s = star;
1590
1591 /* end of sequence */
1592 asn1_pop_tag(data);
1593 return true;
1594 }
1595
1596 /* NOTE: although openldap libraries allow for spaces in some places, mosly
1597 * around parenthesis, we do not allow any spaces (except in values of
1598 * course) as I couldn't fine any place in RFC 4512 or RFC 4515 where
1599 * leading or trailing spaces where allowed.
1600 */
1601 static bool tldap_push_filter(struct tldap_context *ld,
1602 struct asn1_data *data,
1603 const char *filter)
1604 {
1605 const char *s = filter;
1606 bool ret;
1607
1608 ret = tldap_push_filter_int(ld, data, &s);
1609 if (ret && *s) {
1610 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1611 "Incomplete or malformed filter\n");
1612 return false;
1613 }
1614 return ret;
1615 }
1616
1617 /*****************************************************************************/
1618
1619 static void tldap_search_done(struct tevent_req *subreq);
1620
1621 struct tevent_req *tldap_search_send(TALLOC_CTX *mem_ctx,
1622 struct tevent_context *ev,
1623 struct tldap_context *ld,
1624 const char *base, int scope,
1625 const char *filter,
1626 const char **attrs,
1627 int num_attrs,
1628 int attrsonly,
1629 struct tldap_control *sctrls,
1630 int num_sctrls,
1631 struct tldap_control *cctrls,
1632 int num_cctrls,
1633 int timelimit,
1634 int sizelimit,
1635 int deref)
1636 {
1637 struct tevent_req *req, *subreq;
1638 struct tldap_req_state *state;
1639 int i;
1640
1641 req = tldap_req_create(mem_ctx, ld, &state);
1642 if (req == NULL) {
1643 return NULL;
1644 }
1645
1646 asn1_push_tag(state->out, TLDAP_REQ_SEARCH);
1647 asn1_write_OctetString(state->out, base, strlen(base));
1648 asn1_write_enumerated(state->out, scope);
1649 asn1_write_enumerated(state->out, deref);
1650 asn1_write_Integer(state->out, sizelimit);
1651 asn1_write_Integer(state->out, timelimit);
1652 asn1_write_BOOLEAN(state->out, attrsonly);
1653
1654 if (!tldap_push_filter(ld, state->out, filter)) {
1655 goto encoding_error;
1656 }
1657
1658 asn1_push_tag(state->out, ASN1_SEQUENCE(0));
1659 for (i=0; i<num_attrs; i++) {
1660 asn1_write_OctetString(state->out, attrs[i], strlen(attrs[i]));
1661 }
1662 asn1_pop_tag(state->out);
1663 asn1_pop_tag(state->out);
1664
1665 subreq = tldap_msg_send(state, ev, ld, state->id, state->out,
1666 sctrls, num_sctrls);
1667 if (tevent_req_nomem(subreq, req)) {
1668 return tevent_req_post(req, ev);
1669 }
1670 tevent_req_set_callback(subreq, tldap_search_done, req);
1671 return req;
1672
1673 encoding_error:
1674 tevent_req_error(req, TLDAP_ENCODING_ERROR);
1675 return tevent_req_post(req, ev);
1676 }
1677
1678 static void tldap_search_done(struct tevent_req *subreq)
1679 {
1680 struct tevent_req *req = tevent_req_callback_data(
1681 subreq, struct tevent_req);
1682 struct tldap_req_state *state = tevent_req_data(
1683 req, struct tldap_req_state);
1684 int err;
1685
1686 err = tldap_msg_recv(subreq, state, &state->result);
1687 if (err != TLDAP_SUCCESS) {
1688 tevent_req_error(req, err);
1689 return;
1690 }
1691 switch (state->result->type) {
1692 case TLDAP_RES_SEARCH_ENTRY:
1693 case TLDAP_RES_SEARCH_REFERENCE:
1694 tevent_req_notify_callback(req);
1695 if (!tldap_msg_set_pending(subreq)) {
1696 tevent_req_nomem(NULL, req);
1697 return;
1698 }
1699 break;
1700 case TLDAP_RES_SEARCH_RESULT:
1701 TALLOC_FREE(subreq);
1702 if (!asn1_start_tag(state->result->data,
1703 state->result->type) ||
1704 !tldap_decode_response(state) ||
1705 !asn1_end_tag(state->result->data) ||
1706 !tldap_decode_controls(state)) {
1707 tevent_req_error(req, TLDAP_DECODING_ERROR);
1708 return;
1709 }
1710 tevent_req_done(req);
1711 break;
1712 default:
1713 tevent_req_error(req, TLDAP_PROTOCOL_ERROR);
1714 return;
1715 }
1716 }
1717
1718 int tldap_search_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
1719 struct tldap_message **pmsg)
1720 {
1721 struct tldap_req_state *state = tevent_req_data(
1722 req, struct tldap_req_state);
1723 int err;
1724
1725 if (!tevent_req_is_in_progress(req)
1726 && tevent_req_is_ldap_error(req, &err)) {
1727 return err;
1728 }
1729
1730 if (tevent_req_is_in_progress(req)) {
1731 switch (state->result->type) {
1732 case TLDAP_RES_SEARCH_ENTRY:
1733 case TLDAP_RES_SEARCH_REFERENCE:
1734 break;
1735 default:
1736 return TLDAP_OPERATIONS_ERROR;
1737 }
1738 }
1739
1740 *pmsg = talloc_move(mem_ctx, &state->result);
1741 return TLDAP_SUCCESS;
1742 }
1743
1744 struct tldap_sync_search_state {
1745 TALLOC_CTX *mem_ctx;
1746 struct tldap_message **entries;
1747 struct tldap_message **refs;
1748 int rc;
1749 };
1750
1751 static void tldap_search_cb(struct tevent_req *req)
1752 {
1753 struct tldap_sync_search_state *state =
1754 (struct tldap_sync_search_state *)
1755 tevent_req_callback_data_void(req);
1756 struct tldap_message *msg, **tmp;
1757 int rc, num_entries, num_refs;
1758
1759 rc = tldap_search_recv(req, talloc_tos(), &msg);
1760 if (rc != TLDAP_SUCCESS) {
1761 state->rc = rc;
1762 return;
1763 }
1764
1765 switch (tldap_msg_type(msg)) {
1766 case TLDAP_RES_SEARCH_ENTRY:
1767 num_entries = talloc_array_length(state->entries);
1768 tmp = talloc_realloc(state->mem_ctx, state->entries,
1769 struct tldap_message *, num_entries + 1);
1770 if (tmp == NULL) {
1771 state->rc = TLDAP_NO_MEMORY;
1772 return;
1773 }
1774 state->entries = tmp;
1775 state->entries[num_entries] = talloc_move(state->entries,
1776 &msg);
1777 break;
1778 case TLDAP_RES_SEARCH_REFERENCE:
1779 num_refs = talloc_array_length(state->refs);
1780 tmp = talloc_realloc(state->mem_ctx, state->refs,
1781 struct tldap_message *, num_refs + 1);
1782 if (tmp == NULL) {
1783 state->rc = TLDAP_NO_MEMORY;
1784 return;
1785 }
1786 state->refs = tmp;
1787 state->refs[num_refs] = talloc_move(state->refs, &msg);
1788 break;
1789 case TLDAP_RES_SEARCH_RESULT:
1790 state->rc = TLDAP_SUCCESS;
1791 break;
1792 default:
1793 state->rc = TLDAP_PROTOCOL_ERROR;
1794 break;
1795 }
1796 }
1797
1798 int tldap_search(struct tldap_context *ld,
1799 const char *base, int scope, const char *filter,
1800 const char **attrs, int num_attrs, int attrsonly,
1801 struct tldap_control *sctrls, int num_sctrls,
1802 struct tldap_control *cctrls, int num_cctrls,
1803 int timelimit, int sizelimit, int deref,
1804 TALLOC_CTX *mem_ctx, struct tldap_message ***entries,
1805 struct tldap_message ***refs)
1806 {
1807 TALLOC_CTX *frame = talloc_stackframe();
1808 struct tevent_context *ev;
1809 struct tevent_req *req;
1810 struct tldap_sync_search_state state;
1811
1812 ZERO_STRUCT(state);
1813 state.mem_ctx = mem_ctx;
1814 state.rc = TLDAP_SUCCESS;
1815
1816 ev = event_context_init(frame);
1817 if (ev == NULL) {
1818 state.rc = TLDAP_NO_MEMORY;
1819 goto fail;
1820 }
1821
1822 req = tldap_search_send(frame, ev, ld, base, scope, filter,
1823 attrs, num_attrs, attrsonly,
1824 sctrls, num_sctrls, cctrls, num_cctrls,
1825 timelimit, sizelimit, deref);
1826 if (req == NULL) {
1827 state.rc = TLDAP_NO_MEMORY;
1828 goto fail;
1829 }
1830
1831 tevent_req_set_callback(req, tldap_search_cb, &state);
1832
1833 if (!tevent_req_is_in_progress(req)) {
1834 /* an error happend before sending */
1835 if (tevent_req_is_ldap_error(req, &state.rc)) {
1836 goto fail;
1837 }
1838 }
1839
1840 while (tevent_req_is_in_progress(req)
1841 && (state.rc == TLDAP_SUCCESS)) {
1842 if (tevent_loop_once(ev) == -1) {
1843 return TLDAP_OPERATIONS_ERROR;
1844 }
1845 }
1846
1847 if (state.rc != TLDAP_SUCCESS) {
1848 return state.rc;
1849 }
1850
1851 if (entries != NULL) {
1852 *entries = state.entries;
1853 } else {
1854 TALLOC_FREE(state.entries);
1855 }
1856 if (refs != NULL) {
1857 *refs = state.refs;
1858 } else {
1859 TALLOC_FREE(state.refs);
1860 }
1861 tldap_save_msg(ld, req);
1862 fail:
1863 TALLOC_FREE(frame);
1864 return state.rc;
1865 }
1866
1867 static bool tldap_parse_search_entry(struct tldap_message *msg)
1868 {
1869 int num_attribs = 0;
1870
1871 asn1_start_tag(msg->data, msg->type);
1872
1873 /* dn */
1874
1875 asn1_read_OctetString_talloc(msg, msg->data, &msg->dn);
1876 if (msg->dn == NULL) {
1877 return false;
1878 }
1879
1880 /*
1881 * Attributes: We overallocate msg->attribs by one, so that while
1882 * looping over the attributes we can directly parse into the last
1883 * array element. Same for the values in the inner loop.
1884 */
1885
1886 msg->attribs = talloc_array(msg, struct tldap_attribute, 1);
1887 if (msg->attribs == NULL) {
1888 return false;
1889 }
1890
1891 asn1_start_tag(msg->data, ASN1_SEQUENCE(0));
1892 while (asn1_peek_tag(msg->data, ASN1_SEQUENCE(0))) {
1893 struct tldap_attribute *attrib;
1894 int num_values = 0;
1895
1896 attrib = &msg->attribs[num_attribs];
1897 attrib->values = talloc_array(msg->attribs, DATA_BLOB, 1);
1898 if (attrib->values == NULL) {
1899 return false;
1900 }
1901 asn1_start_tag(msg->data, ASN1_SEQUENCE(0));
1902 asn1_read_OctetString_talloc(msg->attribs, msg->data,
1903 &attrib->name);
1904 asn1_start_tag(msg->data, ASN1_SET);
1905
1906 while (asn1_peek_tag(msg->data, ASN1_OCTET_STRING)) {
1907 asn1_read_OctetString(msg->data, msg,
1908 &attrib->values[num_values]);
1909
1910 attrib->values = talloc_realloc(
1911 msg->attribs, attrib->values, DATA_BLOB,
1912 num_values + 2);
1913 if (attrib->values == NULL) {
1914 return false;
1915 }
1916 num_values += 1;
1917 }
1918 attrib->values = talloc_realloc(msg->attribs, attrib->values,
1919 DATA_BLOB, num_values);
1920 attrib->num_values = num_values;
1921
1922 asn1_end_tag(msg->data); /* ASN1_SET */
1923 asn1_end_tag(msg->data); /* ASN1_SEQUENCE(0) */
1924 msg->attribs = talloc_realloc(
1925 msg, msg->attribs, struct tldap_attribute,
1926 num_attribs + 2);
1927 if (msg->attribs == NULL) {
1928 return false;
1929 }
1930 num_attribs += 1;
1931 }
1932 msg->attribs = talloc_realloc(
1933 msg, msg->attribs, struct tldap_attribute, num_attribs);
1934 asn1_end_tag(msg->data);
1935 if (msg->data->has_error) {
1936 return false;
1937 }
1938 return true;
1939 }
1940
1941 bool tldap_entry_dn(struct tldap_message *msg, char **dn)
1942 {
1943 if ((msg->dn == NULL) && (!tldap_parse_search_entry(msg))) {
1944 return false;
1945 }
1946 *dn = msg->dn;
1947 return true;
1948 }
1949
1950 bool tldap_entry_attributes(struct tldap_message *msg, int *num_attributes,
1951 struct tldap_attribute **attributes)
1952 {
1953 if ((msg->dn == NULL) && (!tldap_parse_search_entry(msg))) {
1954 return false;
1955 }
1956 *attributes = msg->attribs;
1957 *num_attributes = talloc_array_length(msg->attribs);
1958 return true;
1959 }
1960
1961 static bool tldap_decode_controls(struct tldap_req_state *state)
1962 {
1963 struct tldap_message *msg = state->result;
1964 struct asn1_data *data = msg->data;
1965 struct tldap_control *sctrls = NULL;
1966 int num_controls = 0;
1967
1968 msg->res_sctrls = NULL;
1969
1970 if (!asn1_peek_tag(data, ASN1_CONTEXT(0))) {
1971 return true;
1972 }
1973
1974 asn1_start_tag(data, ASN1_CONTEXT(0));
1975
1976 while (asn1_peek_tag(data, ASN1_SEQUENCE(0))) {
1977 struct tldap_control *c;
1978 char *oid = NULL;
1979
1980 sctrls = talloc_realloc(msg, sctrls, struct tldap_control,
1981 num_controls + 1);
1982 if (sctrls == NULL) {
1983 return false;
1984 }
1985 c = &sctrls[num_controls];
1986
1987 asn1_start_tag(data, ASN1_SEQUENCE(0));
1988 asn1_read_OctetString_talloc(msg, data, &oid);
1989 if ((data->has_error) || (oid == NULL)) {
1990 return false;
1991 }
1992 c->oid = oid;
1993 if (asn1_peek_tag(data, ASN1_BOOLEAN)) {
1994 asn1_read_BOOLEAN(data, &c->critical);
1995 } else {
1996 c->critical = false;
1997 }
1998 c->value = data_blob_null;
1999 if (asn1_peek_tag(data, ASN1_OCTET_STRING) &&
2000 !asn1_read_OctetString(data, msg, &c->value)) {
2001 return false;
2002 }
2003 asn1_end_tag(data); /* ASN1_SEQUENCE(0) */
2004
2005 num_controls += 1;
2006 }
2007
2008 asn1_end_tag(data); /* ASN1_CONTEXT(0) */
2009
2010 if (data->has_error) {
2011 TALLOC_FREE(sctrls);
2012 return false;
2013 }
2014 msg->res_sctrls = sctrls;
2015 return true;
2016 }
2017
2018 static void tldap_simple_done(struct tevent_req *subreq, int type)
2019 {
2020 struct tevent_req *req = tevent_req_callback_data(
2021 subreq, struct tevent_req);
2022 struct tldap_req_state *state = tevent_req_data(
2023 req, struct tldap_req_state);
2024 int err;
2025
2026 err = tldap_msg_recv(subreq, state, &state->result);
2027 TALLOC_FREE(subreq);
2028 if (err != TLDAP_SUCCESS) {
2029 tevent_req_error(req, err);
2030 return;
2031 }
2032 if (state->result->type != type) {
2033 tevent_req_error(req, TLDAP_PROTOCOL_ERROR);
2034 return;
2035 }
2036 if (!asn1_start_tag(state->result->data, state->result->type) ||
2037 !tldap_decode_response(state) ||
2038 !asn1_end_tag(state->result->data) ||
2039 !tldap_decode_controls(state)) {
2040 tevent_req_error(req, TLDAP_DECODING_ERROR);
2041 return;
2042 }
2043 if (state->result->lderr != TLDAP_SUCCESS) {
2044 tevent_req_error(req, state->result->lderr);
2045 return;
2046 }
2047 tevent_req_done(req);
2048 }
2049
2050 static int tldap_simple_recv(struct tevent_req *req)
2051 {
2052 int err;
2053 if (tevent_req_is_ldap_error(req, &err)) {
2054 return err;
2055 }
2056 return TLDAP_SUCCESS;
2057 }
2058
2059 static void tldap_add_done(struct tevent_req *subreq);
2060
2061 struct tevent_req *tldap_add_send(TALLOC_CTX *mem_ctx,
2062 struct tevent_context *ev,
2063 struct tldap_context *ld,
2064 const char *dn,
2065 struct tldap_mod *attributes,
2066 int num_attributes,
2067 struct tldap_control *sctrls,
2068 int num_sctrls,
2069 struct tldap_control *cctrls,
2070 int num_cctrls)
2071 {
2072 struct tevent_req *req, *subreq;
2073 struct tldap_req_state *state;
2074 int i, j;
2075
2076 req = tldap_req_create(mem_ctx, ld, &state);
2077 if (req == NULL) {
2078 return NULL;
2079 }
2080
2081 asn1_push_tag(state->out, TLDAP_REQ_ADD);
2082 asn1_write_OctetString(state->out, dn, strlen(dn));
2083 asn1_push_tag(state->out, ASN1_SEQUENCE(0));
2084
2085 for (i=0; i<num_attributes; i++) {
2086 struct tldap_mod *attrib = &attributes[i];
2087 asn1_push_tag(state->out, ASN1_SEQUENCE(0));
2088 asn1_write_OctetString(state->out, attrib->attribute,
2089 strlen(attrib->attribute));
2090 asn1_push_tag(state->out, ASN1_SET);
2091 for (j=0; j<attrib->num_values; j++) {
2092 asn1_write_OctetString(state->out,
2093 attrib->values[j].data,
2094 attrib->values[j].length);
2095 }
2096 asn1_pop_tag(state->out);
2097 asn1_pop_tag(state->out);
2098 }
2099
2100 asn1_pop_tag(state->out);
2101 asn1_pop_tag(state->out);
2102
2103 subreq = tldap_msg_send(state, ev, ld, state->id, state->out,
2104 sctrls, num_sctrls);
2105 if (tevent_req_nomem(subreq, req)) {
2106 return tevent_req_post(req, ev);
2107 }
2108 tevent_req_set_callback(subreq, tldap_add_done, req);
2109 return req;
2110 }
2111
2112 static void tldap_add_done(struct tevent_req *subreq)
2113 {
2114 tldap_simple_done(subreq, TLDAP_RES_ADD);
2115 }
2116
2117 int tldap_add_recv(struct tevent_req *req)
2118 {
2119 return tldap_simple_recv(req);
2120 }
2121
2122 int tldap_add(struct tldap_context *ld, const char *dn,
2123 int num_attributes, struct tldap_mod *attributes,
2124 struct tldap_control *sctrls, int num_sctrls,
2125 struct tldap_control *cctrls, int num_cctrls)
2126 {
2127 TALLOC_CTX *frame = talloc_stackframe();
2128 struct tevent_context *ev;
2129 struct tevent_req *req;
2130 int result;
2131
2132 ev = event_context_init(frame);
2133 if (ev == NULL) {
2134 result = TLDAP_NO_MEMORY;
2135 goto fail;
2136 }
2137
2138 req = tldap_add_send(frame, ev, ld, dn, attributes, num_attributes,
2139 sctrls, num_sctrls, cctrls, num_cctrls);
2140 if (req == NULL) {
2141 result = TLDAP_NO_MEMORY;
2142 goto fail;
2143 }
2144
2145 if (!tevent_req_poll(req, ev)) {
2146 result = TLDAP_OPERATIONS_ERROR;
2147 goto fail;
2148 }
2149
2150 result = tldap_add_recv(req);
2151 tldap_save_msg(ld, req);
2152 fail:
2153 TALLOC_FREE(frame);
2154 return result;
2155 }
2156
2157 static void tldap_modify_done(struct tevent_req *subreq);
2158
2159 struct tevent_req *tldap_modify_send(TALLOC_CTX *mem_ctx,
2160 struct tevent_context *ev,
2161 struct tldap_context *ld,
2162 const char *dn,
2163 int num_mods, struct tldap_mod *mods,
2164 struct tldap_control *sctrls,
2165 int num_sctrls,
2166 struct tldap_control *cctrls,
2167 int num_cctrls)
2168 {
2169 struct tevent_req *req, *subreq;
2170 struct tldap_req_state *state;
2171 int i, j;
2172
2173 req = tldap_req_create(mem_ctx, ld, &state);
2174 if (req == NULL) {
2175 return NULL;
2176 }
2177
2178 asn1_push_tag(state->out, TLDAP_REQ_MODIFY);
2179 asn1_write_OctetString(state->out, dn, strlen(dn));
2180 asn1_push_tag(state->out, ASN1_SEQUENCE(0));
2181
2182 for (i=0; i<num_mods; i++) {
2183 struct tldap_mod *mod = &mods[i];
2184 asn1_push_tag(state->out, ASN1_SEQUENCE(0));
2185 asn1_write_enumerated(state->out, mod->mod_op),
2186 asn1_push_tag(state->out, ASN1_SEQUENCE(0));
2187 asn1_write_OctetString(state->out, mod->attribute,
2188 strlen(mod->attribute));
2189 asn1_push_tag(state->out, ASN1_SET);
2190 for (j=0; j<mod->num_values; j++) {
2191 asn1_write_OctetString(state->out,
2192 mod->values[j].data,
2193 mod->values[j].length);
2194 }
2195 asn1_pop_tag(state->out);
2196 asn1_pop_tag(state->out);
2197 asn1_pop_tag(state->out);
2198 }
2199
2200 asn1_pop_tag(state->out);
2201 asn1_pop_tag(state->out);
2202
2203 subreq = tldap_msg_send(state, ev, ld, state->id, state->out,
2204 sctrls, num_sctrls);
2205 if (tevent_req_nomem(subreq, req)) {
2206 return tevent_req_post(req, ev);
2207 }
2208 tevent_req_set_callback(subreq, tldap_modify_done, req);
2209 return req;
2210 }
2211
2212 static void tldap_modify_done(struct tevent_req *subreq)
2213 {
2214 tldap_simple_done(subreq, TLDAP_RES_MODIFY);
2215 }
2216
2217 int tldap_modify_recv(struct tevent_req *req)
2218 {
2219 return tldap_simple_recv(req);
2220 }
2221
2222 int tldap_modify(struct tldap_context *ld, const char *dn,
2223 int num_mods, struct tldap_mod *mods,
2224 struct tldap_control *sctrls, int num_sctrls,
2225 struct tldap_control *cctrls, int num_cctrls)
2226 {
2227 TALLOC_CTX *frame = talloc_stackframe();
2228 struct tevent_context *ev;
2229 struct tevent_req *req;
2230 int result;
2231
2232 ev = event_context_init(frame);
2233 if (ev == NULL) {
2234 result = TLDAP_NO_MEMORY;
2235 goto fail;
2236 }
2237
2238 req = tldap_modify_send(frame, ev, ld, dn, num_mods, mods,
2239 sctrls, num_sctrls, cctrls, num_cctrls);
2240 if (req == NULL) {
2241 result = TLDAP_NO_MEMORY;
2242 goto fail;
2243 }
2244
2245 if (!tevent_req_poll(req, ev)) {
2246 result = TLDAP_OPERATIONS_ERROR;
2247 goto fail;
2248 }
2249
2250 result = tldap_modify_recv(req);
2251 tldap_save_msg(ld, req);
2252 fail:
2253 TALLOC_FREE(frame);
2254 return result;
2255 }
2256
2257 static void tldap_delete_done(struct tevent_req *subreq);
2258
2259 struct tevent_req *tldap_delete_send(TALLOC_CTX *mem_ctx,
2260 struct tevent_context *ev,
2261 struct tldap_context *ld,
2262 const char *dn,
2263 struct tldap_control *sctrls,
2264 int num_sctrls,
2265 struct tldap_control *cctrls,
2266 int num_cctrls)
2267 {
2268 struct tevent_req *req, *subreq;
2269 struct tldap_req_state *state;
2270
2271 req = tldap_req_create(mem_ctx, ld, &state);
2272 if (req == NULL) {
2273 return NULL;
2274 }
2275
2276 asn1_push_tag(state->out, TLDAP_REQ_DELETE);
2277 asn1_write(state->out, dn, strlen(dn));
2278 asn1_pop_tag(state->out);
2279
2280 subreq = tldap_msg_send(state, ev, ld, state->id, state->out,
2281 sctrls, num_sctrls);
2282 if (tevent_req_nomem(subreq, req)) {
2283 return tevent_req_post(req, ev);
2284 }
2285 tevent_req_set_callback(subreq, tldap_delete_done, req);
2286 return req;
2287 }
2288
2289 static void tldap_delete_done(struct tevent_req *subreq)
2290 {
2291 tldap_simple_done(subreq, TLDAP_RES_DELETE);
2292 }
2293
2294 int tldap_delete_recv(struct tevent_req *req)
2295 {
2296 return tldap_simple_recv(req);
2297 }
2298
2299 int tldap_delete(struct tldap_context *ld, const char *dn,
2300 struct tldap_control *sctrls, int num_sctrls,
2301 struct tldap_control *cctrls, int num_cctrls)
2302 {
2303 TALLOC_CTX *frame = talloc_stackframe();
2304 struct tevent_context *ev;
2305 struct tevent_req *req;
2306 int result;
2307
2308 ev = event_context_init(frame);
2309 if (ev == NULL) {
2310 result = TLDAP_NO_MEMORY;
2311 goto fail;
2312 }
2313
2314 req = tldap_delete_send(frame, ev, ld, dn, sctrls, num_sctrls,
2315 cctrls, num_cctrls);
2316 if (req == NULL) {
2317 result = TLDAP_NO_MEMORY;
2318 goto fail;
2319 }
2320
2321 if (!tevent_req_poll(req, ev)) {
2322 result = TLDAP_OPERATIONS_ERROR;
2323 goto fail;
2324 }
2325
2326 result = tldap_delete_recv(req);
2327 tldap_save_msg(ld, req);
2328 fail:
2329 TALLOC_FREE(frame);
2330 return result;
2331 }
2332
2333 int tldap_msg_id(const struct tldap_message *msg)
2334 {
2335 return msg->id;
2336 }
2337
2338 int tldap_msg_type(const struct tldap_message *msg)
2339 {
2340 return msg->type;
2341 }
2342
2343 const char *tldap_msg_matcheddn(struct tldap_message *msg)
2344 {
2345 if (msg == NULL) {
2346 return NULL;
2347 }
2348 return msg->res_matcheddn;
2349 }
2350
2351 const char *tldap_msg_diagnosticmessage(struct tldap_message *msg)
2352 {
2353 if (msg == NULL) {
2354 return NULL;
2355 }
2356 return msg->res_diagnosticmessage;
2357 }
2358
2359 const char *tldap_msg_referral(struct tldap_message *msg)
2360 {
2361 if (msg == NULL) {
2362 return NULL;
2363 }
2364 return msg->res_referral;
2365 }
2366
2367 void tldap_msg_sctrls(struct tldap_message *msg, int *num_sctrls,
2368 struct tldap_control **sctrls)
2369 {
2370 if (msg == NULL) {
2371 *sctrls = NULL;
2372 *num_sctrls = 0;
2373 }
2374 *sctrls = msg->res_sctrls;
2375 *num_sctrls = talloc_array_length(msg->res_sctrls);
2376 }
2377
2378 struct tldap_message *tldap_ctx_lastmsg(struct tldap_context *ld)
2379 {
2380 return ld->last_msg;
2381 }
2382
2383 const char *tldap_err2string(int rc)
2384 {
2385 const char *res = NULL;
2386
2387 /*
2388 * This would normally be a table, but the error codes are not fully
2389 * sequential. Let the compiler figure out the optimum implementation
2390 * :-)
2391 */
2392
2393 switch (rc) {
2394 case TLDAP_SUCCESS:
2395 res = "TLDAP_SUCCESS";
2396 break;
2397 case TLDAP_OPERATIONS_ERROR:
2398 res = "TLDAP_OPERATIONS_ERROR";
2399 break;
2400 case TLDAP_PROTOCOL_ERROR:
2401 res = "TLDAP_PROTOCOL_ERROR";
2402 break;
2403 case TLDAP_TIMELIMIT_EXCEEDED:
2404 res = "TLDAP_TIMELIMIT_EXCEEDED";
2405 break;
2406 case TLDAP_SIZELIMIT_EXCEEDED:
2407 res = "TLDAP_SIZELIMIT_EXCEEDED";
2408 break;
2409 case TLDAP_COMPARE_FALSE:
2410 res = "TLDAP_COMPARE_FALSE";
2411 break;
2412 case TLDAP_COMPARE_TRUE:
2413 res = "TLDAP_COMPARE_TRUE";
2414 break;
2415 case TLDAP_STRONG_AUTH_NOT_SUPPORTED:
2416 res = "TLDAP_STRONG_AUTH_NOT_SUPPORTED";
2417 break;
2418 case TLDAP_STRONG_AUTH_REQUIRED:
2419 res = "TLDAP_STRONG_AUTH_REQUIRED";
2420 break;
2421 case TLDAP_REFERRAL:
2422 res = "TLDAP_REFERRAL";
2423 break;
2424 case TLDAP_ADMINLIMIT_EXCEEDED:
2425 res = "TLDAP_ADMINLIMIT_EXCEEDED";
2426 break;
2427 case TLDAP_UNAVAILABLE_CRITICAL_EXTENSION:
2428 res = "TLDAP_UNAVAILABLE_CRITICAL_EXTENSION";
2429 break;
2430 case TLDAP_CONFIDENTIALITY_REQUIRED:
2431 res = "TLDAP_CONFIDENTIALITY_REQUIRED";
2432 break;
2433 case TLDAP_SASL_BIND_IN_PROGRESS:
2434 res = "TLDAP_SASL_BIND_IN_PROGRESS";
2435 break;
2436 case TLDAP_NO_SUCH_ATTRIBUTE:
2437 res = "TLDAP_NO_SUCH_ATTRIBUTE";
2438 break;
2439 case TLDAP_UNDEFINED_TYPE:
2440 res = "TLDAP_UNDEFINED_TYPE";
2441 break;
2442 case TLDAP_INAPPROPRIATE_MATCHING:
2443 res = "TLDAP_INAPPROPRIATE_MATCHING";
2444 break;
2445 case TLDAP_CONSTRAINT_VIOLATION:
2446 res = "TLDAP_CONSTRAINT_VIOLATION";
2447 break;
2448 case TLDAP_TYPE_OR_VALUE_EXISTS:
2449 res = "TLDAP_TYPE_OR_VALUE_EXISTS";
2450 break;
2451 case TLDAP_INVALID_SYNTAX:
2452 res = "TLDAP_INVALID_SYNTAX";
2453 break;
2454 case TLDAP_NO_SUCH_OBJECT:
2455 res = "TLDAP_NO_SUCH_OBJECT";
2456 break;
2457 case TLDAP_ALIAS_PROBLEM:
2458 res = "TLDAP_ALIAS_PROBLEM";
2459 break;
2460 case TLDAP_INVALID_DN_SYNTAX:
2461 res = "TLDAP_INVALID_DN_SYNTAX";
2462 break;
2463 case TLDAP_IS_LEAF:
2464 res = "TLDAP_IS_LEAF";
2465 break;
2466 case TLDAP_ALIAS_DEREF_PROBLEM:
2467 res = "TLDAP_ALIAS_DEREF_PROBLEM";
2468 break;
2469 case TLDAP_INAPPROPRIATE_AUTH:
2470 res = "TLDAP_INAPPROPRIATE_AUTH";
2471 break;
2472 case TLDAP_INVALID_CREDENTIALS:
2473 res = "TLDAP_INVALID_CREDENTIALS";
2474 break;
2475 case TLDAP_INSUFFICIENT_ACCESS:
2476 res = "TLDAP_INSUFFICIENT_ACCESS";
2477 break;
2478 case TLDAP_BUSY:
2479 res = "TLDAP_BUSY";
2480 break;
2481 case TLDAP_UNAVAILABLE:
2482 res = "TLDAP_UNAVAILABLE";
2483 break;
2484 case TLDAP_UNWILLING_TO_PERFORM:
2485 res = "TLDAP_UNWILLING_TO_PERFORM";
2486 break;
2487 case TLDAP_LOOP_DETECT:
2488 res = "TLDAP_LOOP_DETECT";
2489 break;
2490 case TLDAP_NAMING_VIOLATION:
2491 res = "TLDAP_NAMING_VIOLATION";
2492 break;
2493 case TLDAP_OBJECT_CLASS_VIOLATION:
2494 res = "TLDAP_OBJECT_CLASS_VIOLATION";
2495 break;
2496 case TLDAP_NOT_ALLOWED_ON_NONLEAF:
2497 res = "TLDAP_NOT_ALLOWED_ON_NONLEAF";
2498 break;
2499 case TLDAP_NOT_ALLOWED_ON_RDN:
2500 res = "TLDAP_NOT_ALLOWED_ON_RDN";
2501 break;
2502 case TLDAP_ALREADY_EXISTS:
2503 res = "TLDAP_ALREADY_EXISTS";
2504 break;
2505 case TLDAP_NO_OBJECT_CLASS_MODS:
2506 res = "TLDAP_NO_OBJECT_CLASS_MODS";
2507 break;
2508 case TLDAP_RESULTS_TOO_LARGE:
2509 res = "TLDAP_RESULTS_TOO_LARGE";
2510 break;
2511 case TLDAP_AFFECTS_MULTIPLE_DSAS:
2512 res = "TLDAP_AFFECTS_MULTIPLE_DSAS";
2513 break;
2514 case TLDAP_OTHER:
2515 res = "TLDAP_OTHER";
2516 break;
2517 case TLDAP_SERVER_DOWN:
2518 res = "TLDAP_SERVER_DOWN";
2519 break;
2520 case TLDAP_LOCAL_ERROR:
2521 res = "TLDAP_LOCAL_ERROR";
2522 break;
2523 case TLDAP_ENCODING_ERROR:
2524 res = "TLDAP_ENCODING_ERROR";
2525 break;
2526 case TLDAP_DECODING_ERROR:
2527 res = "TLDAP_DECODING_ERROR";
2528 break;
2529 case TLDAP_TIMEOUT:
2530 res = "TLDAP_TIMEOUT";
2531 break;
2532 case TLDAP_AUTH_UNKNOWN:
2533 res = "TLDAP_AUTH_UNKNOWN";
2534 break;
2535 case TLDAP_FILTER_ERROR:
2536 res = "TLDAP_FILTER_ERROR";
2537 break;
2538 case TLDAP_USER_CANCELLED:
2539 res = "TLDAP_USER_CANCELLED";
2540 break;
2541 case TLDAP_PARAM_ERROR:
2542 res = "TLDAP_PARAM_ERROR";
2543 break;
2544 case TLDAP_NO_MEMORY:
2545 res = "TLDAP_NO_MEMORY";
2546 break;
2547 case TLDAP_CONNECT_ERROR:
2548 res = "TLDAP_CONNECT_ERROR";
2549 break;
2550 case TLDAP_NOT_SUPPORTED:
2551 res = "TLDAP_NOT_SUPPORTED";
2552 break;
2553 case TLDAP_CONTROL_NOT_FOUND:
2554 res = "TLDAP_CONTROL_NOT_FOUND";
2555 break;
2556 case TLDAP_NO_RESULTS_RETURNED:
2557 res = "TLDAP_NO_RESULTS_RETURNED";
2558 break;
2559 case TLDAP_MORE_RESULTS_TO_RETURN:
2560 res = "TLDAP_MORE_RESULTS_TO_RETURN";
2561 break;
2562 case TLDAP_CLIENT_LOOP:
2563 res = "TLDAP_CLIENT_LOOP";
2564 break;
2565 case TLDAP_REFERRAL_LIMIT_EXCEEDED:
2566 res = "TLDAP_REFERRAL_LIMIT_EXCEEDED";
2567 break;
2568 default:
2569 res = talloc_asprintf(talloc_tos(), "Unknown LDAP Error (%d)",
2570 rc);
2571 break;
2572 }
2573 if (res == NULL) {
2574 res = "Unknown LDAP Error";
2575 }
2576 return res;
2577 }