2 Unix SMB/CIFS implementation.
3 Infrastructure for async ldap client requests
4 Copyright (C) Volker Lendecke 2009
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.
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.
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/>.
22 #include "system/network.h"
23 #include "system/locale.h"
24 #include "lib/util/talloc_stack.h"
25 #include "lib/util/samba_util.h"
26 #include "lib/util_tsock.h"
27 #include "../lib/util/asn1.h"
28 #include "../lib/tsocket/tsocket.h"
29 #include "../lib/util/tevent_unix.h"
31 static TLDAPRC tldap_simple_recv(struct tevent_req *req);
33 #define TEVENT_TLDAP_RC_MAGIC (0x87bcd26e)
35 bool tevent_req_ldap_error(struct tevent_req *req, TLDAPRC rc)
39 if (TLDAP_RC_IS_SUCCESS(rc)) {
43 err = TEVENT_TLDAP_RC_MAGIC;
45 err |= TLDAP_RC_V(rc);
47 return tevent_req_error(req, err);
50 bool tevent_req_is_ldap_error(struct tevent_req *req, TLDAPRC *perr)
52 enum tevent_req_state state;
55 if (!tevent_req_is_error(req, &state, &err)) {
59 case TEVENT_REQ_TIMED_OUT:
60 *perr = TLDAP_TIMEOUT;
62 case TEVENT_REQ_NO_MEMORY:
63 *perr = TLDAP_NO_MEMORY;
65 case TEVENT_REQ_USER_ERROR:
66 if ((err >> 32) != TEVENT_TLDAP_RC_MAGIC) {
69 *perr = TLDAP_RC(err & 0xffffffff);
72 *perr = TLDAP_OPERATIONS_ERROR;
78 struct tldap_ctx_attribute {
83 struct tldap_context {
85 struct tstream_context *conn;
88 struct tevent_queue *outgoing;
89 struct tevent_req **pending;
91 /* For the sync wrappers we need something like get_last_error... */
92 struct tldap_message *last_msg;
95 void (*log_fn)(void *context, enum tldap_debug_level level,
96 const char *fmt, va_list ap);
99 struct tldap_ctx_attribute *ctx_attrs;
102 struct tldap_message {
103 struct asn1_data *data;
110 struct tldap_attribute *attribs;
112 /* Error data sent by the server */
115 char *res_diagnosticmessage;
117 DATA_BLOB res_serverSaslCreds;
118 struct tldap_control *res_sctrls;
120 /* Controls sent by the server */
121 struct tldap_control *ctrls;
124 void tldap_set_debug(struct tldap_context *ld,
125 void (*log_fn)(void *log_private,
126 enum tldap_debug_level level,
128 va_list ap) PRINTF_ATTRIBUTE(3,0),
132 ld->log_private = log_private;
135 static void tldap_debug(struct tldap_context *ld,
136 enum tldap_debug_level level,
137 const char *fmt, ...)
143 if (ld->log_fn == NULL) {
147 ld->log_fn(ld->log_private, level, fmt, ap);
151 static int tldap_next_msgid(struct tldap_context *ld)
155 result = ld->msgid++;
156 if (ld->msgid == 2147483647) {
162 struct tldap_context *tldap_context_create(TALLOC_CTX *mem_ctx, int fd)
164 struct tldap_context *ctx;
167 ctx = talloc_zero(mem_ctx, struct tldap_context);
171 ret = tstream_bsd_existing_socket(ctx, fd, &ctx->conn);
178 ctx->outgoing = tevent_queue_create(ctx, "tldap_outgoing");
179 if (ctx->outgoing == NULL) {
186 bool tldap_connection_ok(struct tldap_context *ld)
191 return !ld->server_down;
194 static size_t tldap_pending_reqs(struct tldap_context *ld)
196 return talloc_array_length(ld->pending);
199 struct tstream_context *tldap_get_tstream(struct tldap_context *ld)
204 void tldap_set_tstream(struct tldap_context *ld,
205 struct tstream_context *stream)
210 static struct tldap_ctx_attribute *tldap_context_findattr(
211 struct tldap_context *ld, const char *name)
215 num_attrs = talloc_array_length(ld->ctx_attrs);
217 for (i=0; i<num_attrs; i++) {
218 if (strcmp(ld->ctx_attrs[i].name, name) == 0) {
219 return &ld->ctx_attrs[i];
225 bool tldap_context_setattr(struct tldap_context *ld,
226 const char *name, const void *_pptr)
228 struct tldap_ctx_attribute *tmp, *attr;
231 void **pptr = (void **)discard_const_p(void,_pptr);
233 attr = tldap_context_findattr(ld, name);
236 * We don't actually delete attrs, we don't expect tons of
237 * attributes being shuffled around.
239 TALLOC_FREE(attr->ptr);
241 attr->ptr = talloc_move(ld->ctx_attrs, pptr);
247 tmpname = talloc_strdup(ld, name);
248 if (tmpname == NULL) {
252 num_attrs = talloc_array_length(ld->ctx_attrs);
254 tmp = talloc_realloc(ld, ld->ctx_attrs, struct tldap_ctx_attribute,
257 TALLOC_FREE(tmpname);
260 tmp[num_attrs].name = talloc_move(tmp, &tmpname);
262 tmp[num_attrs].ptr = talloc_move(tmp, pptr);
264 tmp[num_attrs].ptr = NULL;
271 void *tldap_context_getattr(struct tldap_context *ld, const char *name)
273 struct tldap_ctx_attribute *attr = tldap_context_findattr(ld, name);
281 struct read_ldap_state {
286 static ssize_t read_ldap_more(uint8_t *buf, size_t buflen, void *private_data);
287 static void read_ldap_done(struct tevent_req *subreq);
289 static struct tevent_req *read_ldap_send(TALLOC_CTX *mem_ctx,
290 struct tevent_context *ev,
291 struct tstream_context *conn)
293 struct tevent_req *req, *subreq;
294 struct read_ldap_state *state;
296 req = tevent_req_create(mem_ctx, &state, struct read_ldap_state);
302 subreq = tstream_read_packet_send(state, ev, conn, 2, read_ldap_more,
304 if (tevent_req_nomem(subreq, req)) {
305 return tevent_req_post(req, ev);
307 tevent_req_set_callback(subreq, read_ldap_done, req);
311 static ssize_t read_ldap_more(uint8_t *buf, size_t buflen, void *private_data)
313 struct read_ldap_state *state = talloc_get_type_abort(
314 private_data, struct read_ldap_state);
319 /* We've been here, we're done */
324 * From ldap.h: LDAP_TAG_MESSAGE is 0x30
326 if (buf[0] != 0x30) {
331 if ((len & 0x80) == 0) {
336 lensize = (len & 0x7f);
340 /* Please get us the full length */
343 if (buflen > 2 + lensize) {
347 if (buflen != 2 + lensize) {
351 for (i=0; i<lensize; i++) {
352 len = (len << 8) | buf[2+i];
357 static void read_ldap_done(struct tevent_req *subreq)
359 struct tevent_req *req = tevent_req_callback_data(
360 subreq, struct tevent_req);
361 struct read_ldap_state *state = tevent_req_data(
362 req, struct read_ldap_state);
366 nread = tstream_read_packet_recv(subreq, state, &state->buf, &err);
369 tevent_req_error(req, err);
372 tevent_req_done(req);
375 static ssize_t read_ldap_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
376 uint8_t **pbuf, int *perrno)
378 struct read_ldap_state *state = tevent_req_data(
379 req, struct read_ldap_state);
381 if (tevent_req_is_unix_error(req, perrno)) {
384 *pbuf = talloc_move(mem_ctx, &state->buf);
385 return talloc_get_size(*pbuf);
388 struct tldap_msg_state {
389 struct tldap_context *ld;
390 struct tevent_context *ev;
394 struct asn1_data *data;
398 static bool tldap_push_controls(struct asn1_data *data,
399 struct tldap_control *sctrls,
404 if ((sctrls == NULL) || (num_sctrls == 0)) {
408 if (!asn1_push_tag(data, ASN1_CONTEXT(0))) return false;
410 for (i=0; i<num_sctrls; i++) {
411 struct tldap_control *c = &sctrls[i];
412 if (!asn1_push_tag(data, ASN1_SEQUENCE(0))) return false;
413 if (!asn1_write_OctetString(data, c->oid, strlen(c->oid))) return false;
415 if (!asn1_write_BOOLEAN(data, true)) return false;
417 if (c->value.data != NULL) {
418 if (!asn1_write_OctetString(data, c->value.data,
419 c->value.length)) return false;
421 if (!asn1_pop_tag(data)) return false; /* ASN1_SEQUENCE(0) */
424 return asn1_pop_tag(data); /* ASN1_CONTEXT(0) */
427 static void tldap_msg_sent(struct tevent_req *subreq);
428 static void tldap_msg_received(struct tevent_req *subreq);
430 static struct tevent_req *tldap_msg_send(TALLOC_CTX *mem_ctx,
431 struct tevent_context *ev,
432 struct tldap_context *ld,
433 int id, struct asn1_data *data,
434 struct tldap_control *sctrls,
437 struct tevent_req *req, *subreq;
438 struct tldap_msg_state *state;
441 tldap_debug(ld, TLDAP_DEBUG_TRACE, "tldap_msg_send: sending msg %d\n",
444 req = tevent_req_create(mem_ctx, &state, struct tldap_msg_state);
452 if (state->ld->server_down) {
453 tevent_req_ldap_error(req, TLDAP_SERVER_DOWN);
454 return tevent_req_post(req, ev);
457 if (!tldap_push_controls(data, sctrls, num_sctrls)) {
458 tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR);
459 return tevent_req_post(req, ev);
463 if (!asn1_pop_tag(data)) {
464 tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR);
465 return tevent_req_post(req, ev);
468 if (!asn1_blob(data, &blob)) {
469 tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR);
470 return tevent_req_post(req, ev);
473 state->iov.iov_base = (void *)blob.data;
474 state->iov.iov_len = blob.length;
476 subreq = tstream_writev_queue_send(state, ev, ld->conn, ld->outgoing,
478 if (tevent_req_nomem(subreq, req)) {
479 return tevent_req_post(req, ev);
481 tevent_req_set_callback(subreq, tldap_msg_sent, req);
485 static void tldap_msg_unset_pending(struct tevent_req *req)
487 struct tldap_msg_state *state = tevent_req_data(
488 req, struct tldap_msg_state);
489 struct tldap_context *ld = state->ld;
490 int num_pending = tldap_pending_reqs(ld);
493 tevent_req_set_cleanup_fn(req, NULL);
495 if (num_pending == 1) {
496 TALLOC_FREE(ld->pending);
500 for (i=0; i<num_pending; i++) {
501 if (req == ld->pending[i]) {
505 if (i == num_pending) {
507 * Something's seriously broken. Just returning here is the
508 * right thing nevertheless, the point of this routine is to
509 * remove ourselves from cli->pending.
515 * Remove ourselves from the cli->pending array
517 if (num_pending > 1) {
518 ld->pending[i] = ld->pending[num_pending-1];
522 * No NULL check here, we're shrinking by sizeof(void *), and
523 * talloc_realloc just adjusts the size for this.
525 ld->pending = talloc_realloc(NULL, ld->pending, struct tevent_req *,
529 static void tldap_msg_cleanup(struct tevent_req *req,
530 enum tevent_req_state req_state)
533 case TEVENT_REQ_USER_ERROR:
534 case TEVENT_REQ_RECEIVED:
535 tldap_msg_unset_pending(req);
542 static bool tldap_msg_set_pending(struct tevent_req *req)
544 struct tldap_msg_state *state = tevent_req_data(
545 req, struct tldap_msg_state);
546 struct tldap_context *ld;
547 struct tevent_req **pending;
549 struct tevent_req *subreq;
552 num_pending = tldap_pending_reqs(ld);
554 pending = talloc_realloc(ld, ld->pending, struct tevent_req *,
556 if (pending == NULL) {
559 pending[num_pending] = req;
560 ld->pending = pending;
561 tevent_req_set_cleanup_fn(req, tldap_msg_cleanup);
563 if (num_pending > 0) {
568 * We're the first one, add the read_ldap request that waits for the
569 * answer from the server
571 subreq = read_ldap_send(ld->pending, state->ev, ld->conn);
572 if (subreq == NULL) {
573 tldap_msg_unset_pending(req);
576 tevent_req_set_callback(subreq, tldap_msg_received, ld);
580 static void tldap_msg_sent(struct tevent_req *subreq)
582 struct tevent_req *req = tevent_req_callback_data(
583 subreq, struct tevent_req);
584 struct tldap_msg_state *state = tevent_req_data(
585 req, struct tldap_msg_state);
589 nwritten = tstream_writev_queue_recv(subreq, &err);
591 if (nwritten == -1) {
592 state->ld->server_down = true;
593 tevent_req_ldap_error(req, TLDAP_SERVER_DOWN);
597 if (!tldap_msg_set_pending(req)) {
603 static int tldap_msg_msgid(struct tevent_req *req)
605 struct tldap_msg_state *state = tevent_req_data(
606 req, struct tldap_msg_state);
611 static void tldap_msg_received(struct tevent_req *subreq)
613 struct tldap_context *ld = tevent_req_callback_data(
614 subreq, struct tldap_context);
615 struct tevent_req *req;
616 struct tldap_msg_state *state;
617 struct asn1_data *data;
627 received = read_ldap_recv(subreq, talloc_tos(), &inbuf, &err);
629 if (received == -1) {
630 ld->server_down = true;
631 status = TLDAP_SERVER_DOWN;
635 data = asn1_init(talloc_tos());
637 status = TLDAP_NO_MEMORY;
640 asn1_load_nocopy(data, inbuf, received);
643 ok &= asn1_start_tag(data, ASN1_SEQUENCE(0));
644 ok &= asn1_read_Integer(data, &id);
645 ok &= asn1_peek_uint8(data, &type);
648 status = TLDAP_PROTOCOL_ERROR;
652 tldap_debug(ld, TLDAP_DEBUG_TRACE, "tldap_msg_received: got msg %d "
653 "type %d\n", id, (int)type);
655 num_pending = talloc_array_length(ld->pending);
657 for (i=0; i<num_pending; i++) {
658 if (id == tldap_msg_msgid(ld->pending[i])) {
662 if (i == num_pending) {
663 /* Dump unexpected reply */
664 tldap_debug(ld, TLDAP_DEBUG_WARNING, "tldap_msg_received: "
665 "No request pending for msg %d\n", id);
671 req = ld->pending[i];
672 state = tevent_req_data(req, struct tldap_msg_state);
674 state->inbuf = talloc_move(state, &inbuf);
675 state->data = talloc_move(state, &data);
677 tldap_msg_unset_pending(req);
678 num_pending = talloc_array_length(ld->pending);
680 tevent_req_done(req);
683 if (num_pending == 0) {
686 if (talloc_array_length(ld->pending) > num_pending) {
688 * The callback functions called from tevent_req_done() above
689 * have put something on the pending queue. We don't have to
690 * trigger the read_ldap_send(), tldap_msg_set_pending() has
691 * done it for us already.
696 state = tevent_req_data(ld->pending[0], struct tldap_msg_state);
697 subreq = read_ldap_send(ld->pending, state->ev, ld->conn);
698 if (subreq == NULL) {
699 status = TLDAP_NO_MEMORY;
702 tevent_req_set_callback(subreq, tldap_msg_received, ld);
706 while (talloc_array_length(ld->pending) > 0) {
707 req = ld->pending[0];
708 state = tevent_req_data(req, struct tldap_msg_state);
709 tevent_req_defer_callback(req, state->ev);
710 tevent_req_ldap_error(req, status);
714 static TLDAPRC tldap_msg_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
715 struct tldap_message **pmsg)
717 struct tldap_msg_state *state = tevent_req_data(
718 req, struct tldap_msg_state);
719 struct tldap_message *msg;
723 if (tevent_req_is_ldap_error(req, &err)) {
727 if (!asn1_peek_uint8(state->data, &msgtype)) {
728 return TLDAP_PROTOCOL_ERROR;
732 return TLDAP_SUCCESS;
735 msg = talloc_zero(mem_ctx, struct tldap_message);
737 return TLDAP_NO_MEMORY;
741 msg->inbuf = talloc_move(msg, &state->inbuf);
742 msg->data = talloc_move(msg, &state->data);
746 return TLDAP_SUCCESS;
749 struct tldap_req_state {
751 struct asn1_data *out;
752 struct tldap_message *result;
755 static struct tevent_req *tldap_req_create(TALLOC_CTX *mem_ctx,
756 struct tldap_context *ld,
757 struct tldap_req_state **pstate)
759 struct tevent_req *req;
760 struct tldap_req_state *state;
762 req = tevent_req_create(mem_ctx, &state, struct tldap_req_state);
766 state->out = asn1_init(state);
767 if (state->out == NULL) {
770 state->id = tldap_next_msgid(ld);
772 if (!asn1_push_tag(state->out, ASN1_SEQUENCE(0))) goto err;
773 if (!asn1_write_Integer(state->out, state->id)) goto err;
784 static void tldap_save_msg(struct tldap_context *ld, struct tevent_req *req)
786 struct tldap_req_state *state = tevent_req_data(
787 req, struct tldap_req_state);
789 TALLOC_FREE(ld->last_msg);
790 ld->last_msg = talloc_move(ld, &state->result);
793 static char *blob2string_talloc(TALLOC_CTX *mem_ctx, DATA_BLOB blob)
795 char *result = talloc_array(mem_ctx, char, blob.length+1);
797 if (result == NULL) {
801 memcpy(result, blob.data, blob.length);
802 result[blob.length] = '\0';
806 static bool asn1_read_OctetString_talloc(TALLOC_CTX *mem_ctx,
807 struct asn1_data *data,
812 if (!asn1_read_OctetString(data, mem_ctx, &string))
815 result = blob2string_talloc(mem_ctx, string);
817 data_blob_free(&string);
819 if (result == NULL) {
826 static bool tldap_decode_controls(struct tldap_req_state *state);
828 static bool tldap_decode_response(struct tldap_req_state *state)
830 struct asn1_data *data = state->result->data;
831 struct tldap_message *msg = state->result;
835 ok &= asn1_read_enumerated(data, &rc);
837 msg->lderr = TLDAP_RC(rc);
840 ok &= asn1_read_OctetString_talloc(msg, data, &msg->res_matcheddn);
841 ok &= asn1_read_OctetString_talloc(msg, data,
842 &msg->res_diagnosticmessage);
844 if (asn1_peek_tag(data, ASN1_CONTEXT(3))) {
845 ok &= asn1_start_tag(data, ASN1_CONTEXT(3));
846 ok &= asn1_read_OctetString_talloc(msg, data,
848 ok &= asn1_end_tag(data);
850 msg->res_referral = NULL;
856 static void tldap_sasl_bind_done(struct tevent_req *subreq);
858 struct tevent_req *tldap_sasl_bind_send(TALLOC_CTX *mem_ctx,
859 struct tevent_context *ev,
860 struct tldap_context *ld,
862 const char *mechanism,
864 struct tldap_control *sctrls,
866 struct tldap_control *cctrls,
869 struct tevent_req *req, *subreq;
870 struct tldap_req_state *state;
872 req = tldap_req_create(mem_ctx, ld, &state);
881 if (!asn1_push_tag(state->out, TLDAP_REQ_BIND)) goto err;
882 if (!asn1_write_Integer(state->out, ld->ld_version)) goto err;
883 if (!asn1_write_OctetString(state->out, dn, strlen(dn))) goto err;
885 if (mechanism == NULL) {
886 if (!asn1_push_tag(state->out, ASN1_CONTEXT_SIMPLE(0))) goto err;
887 if (!asn1_write(state->out, creds->data, creds->length)) goto err;
888 if (!asn1_pop_tag(state->out)) goto err;
890 if (!asn1_push_tag(state->out, ASN1_CONTEXT(3))) goto err;
891 if (!asn1_write_OctetString(state->out, mechanism,
892 strlen(mechanism))) goto err;
893 if ((creds != NULL) && (creds->data != NULL)) {
894 if (!asn1_write_OctetString(state->out, creds->data,
895 creds->length)) goto err;
897 if (!asn1_pop_tag(state->out)) goto err;
900 if (!asn1_pop_tag(state->out)) goto err;
902 subreq = tldap_msg_send(state, ev, ld, state->id, state->out,
904 if (tevent_req_nomem(subreq, req)) {
905 return tevent_req_post(req, ev);
907 tevent_req_set_callback(subreq, tldap_sasl_bind_done, req);
912 tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR);
913 return tevent_req_post(req, ev);
916 static void tldap_sasl_bind_done(struct tevent_req *subreq)
918 struct tevent_req *req = tevent_req_callback_data(
919 subreq, struct tevent_req);
920 struct tldap_req_state *state = tevent_req_data(
921 req, struct tldap_req_state);
925 rc = tldap_msg_recv(subreq, state, &state->result);
927 if (tevent_req_ldap_error(req, rc)) {
930 if (state->result->type != TLDAP_RES_BIND) {
931 tevent_req_ldap_error(req, TLDAP_PROTOCOL_ERROR);
935 ok = asn1_start_tag(state->result->data, TLDAP_RES_BIND);
936 ok &= tldap_decode_response(state);
938 if (asn1_peek_tag(state->result->data, ASN1_CONTEXT_SIMPLE(7))) {
941 ok &= asn1_start_tag(state->result->data,
942 ASN1_CONTEXT_SIMPLE(7));
947 len = asn1_tag_remaining(state->result->data);
952 state->result->res_serverSaslCreds =
953 data_blob_talloc(state->result, NULL, len);
954 if (state->result->res_serverSaslCreds.data == NULL) {
958 ok = asn1_read(state->result->data,
959 state->result->res_serverSaslCreds.data,
960 state->result->res_serverSaslCreds.length);
962 ok &= asn1_end_tag(state->result->data);
965 ok &= asn1_end_tag(state->result->data);
971 if (!TLDAP_RC_IS_SUCCESS(state->result->lderr) &&
972 !TLDAP_RC_EQUAL(state->result->lderr,
973 TLDAP_SASL_BIND_IN_PROGRESS)) {
974 tevent_req_ldap_error(req, state->result->lderr);
977 tevent_req_done(req);
981 tevent_req_ldap_error(req, TLDAP_DECODING_ERROR);
985 TLDAPRC tldap_sasl_bind_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
986 DATA_BLOB *serverSaslCreds)
988 struct tldap_req_state *state = tevent_req_data(
989 req, struct tldap_req_state);
992 if (tevent_req_is_ldap_error(req, &rc)) {
996 if (serverSaslCreds != NULL) {
997 serverSaslCreds->data = talloc_move(
998 mem_ctx, &state->result->res_serverSaslCreds.data);
999 serverSaslCreds->length =
1000 state->result->res_serverSaslCreds.length;
1003 return state->result->lderr;
1006 TLDAPRC tldap_sasl_bind(struct tldap_context *ld,
1008 const char *mechanism,
1010 struct tldap_control *sctrls,
1012 struct tldap_control *cctrls,
1014 TALLOC_CTX *mem_ctx,
1015 DATA_BLOB *serverSaslCreds)
1017 TALLOC_CTX *frame = talloc_stackframe();
1018 struct tevent_context *ev;
1019 struct tevent_req *req;
1020 TLDAPRC rc = TLDAP_NO_MEMORY;
1022 ev = samba_tevent_context_init(frame);
1026 req = tldap_sasl_bind_send(frame, ev, ld, dn, mechanism, creds,
1027 sctrls, num_sctrls, cctrls, num_cctrls);
1031 if (!tevent_req_poll(req, ev)) {
1032 rc = TLDAP_OPERATIONS_ERROR;
1035 rc = tldap_sasl_bind_recv(req, mem_ctx, serverSaslCreds);
1036 tldap_save_msg(ld, req);
1042 struct tevent_req *tldap_simple_bind_send(TALLOC_CTX *mem_ctx,
1043 struct tevent_context *ev,
1044 struct tldap_context *ld,
1050 if (passwd != NULL) {
1051 cred.data = discard_const_p(uint8_t, passwd);
1052 cred.length = strlen(passwd);
1054 cred.data = discard_const_p(uint8_t, "");
1057 return tldap_sasl_bind_send(mem_ctx, ev, ld, dn, NULL, &cred, NULL, 0,
1061 TLDAPRC tldap_simple_bind_recv(struct tevent_req *req)
1063 return tldap_sasl_bind_recv(req, NULL, NULL);
1066 TLDAPRC tldap_simple_bind(struct tldap_context *ld, const char *dn,
1071 if (passwd != NULL) {
1072 cred.data = discard_const_p(uint8_t, passwd);
1073 cred.length = strlen(passwd);
1075 cred.data = discard_const_p(uint8_t, "");
1078 return tldap_sasl_bind(ld, dn, NULL, &cred, NULL, 0, NULL, 0,
1082 /*****************************************************************************/
1084 /* can't use isalpha() as only a strict set is valid for LDAP */
1086 static bool tldap_is_alpha(char c)
1088 return (((c >= 'a') && (c <= 'z')) || \
1089 ((c >= 'A') && (c <= 'Z')));
1092 static bool tldap_is_adh(char c)
1094 return tldap_is_alpha(c) || isdigit(c) || (c == '-');
1097 #define TLDAP_FILTER_AND ASN1_CONTEXT(0)
1098 #define TLDAP_FILTER_OR ASN1_CONTEXT(1)
1099 #define TLDAP_FILTER_NOT ASN1_CONTEXT(2)
1100 #define TLDAP_FILTER_EQ ASN1_CONTEXT(3)
1101 #define TLDAP_FILTER_SUB ASN1_CONTEXT(4)
1102 #define TLDAP_FILTER_LE ASN1_CONTEXT(5)
1103 #define TLDAP_FILTER_GE ASN1_CONTEXT(6)
1104 #define TLDAP_FILTER_PRES ASN1_CONTEXT_SIMPLE(7)
1105 #define TLDAP_FILTER_APX ASN1_CONTEXT(8)
1106 #define TLDAP_FILTER_EXT ASN1_CONTEXT(9)
1108 #define TLDAP_SUB_INI ASN1_CONTEXT_SIMPLE(0)
1109 #define TLDAP_SUB_ANY ASN1_CONTEXT_SIMPLE(1)
1110 #define TLDAP_SUB_FIN ASN1_CONTEXT_SIMPLE(2)
1113 /* oid's should be numerical only in theory,
1114 * but apparently some broken servers may have alphanum aliases instead.
1115 * Do like openldap libraries and allow alphanum aliases for oids, but
1116 * do not allow Tagging options in that case.
1118 static bool tldap_is_attrdesc(const char *s, int len, bool no_tagopts)
1120 bool is_oid = false;
1124 /* first char has stricter rules */
1127 } else if (!tldap_is_alpha(*s)) {
1128 /* bad first char */
1132 for (i = 1; i < len; i++) {
1135 if (isdigit(s[i])) {
1148 if (tldap_is_adh(s[i])) {
1155 /* no tagging options */
1162 if ((i + 1) == len) {
1180 /* this function copies the value until the closing parenthesis is found. */
1181 static char *tldap_get_val(TALLOC_CTX *memctx,
1182 const char *value, const char **_s)
1184 const char *s = value;
1186 /* find terminator */
1189 if (s && (*(s - 1) == '\\')) {
1194 if (!s || !(*s == ')')) {
1195 /* malformed filter */
1201 return talloc_strndup(memctx, value, s - value);
1204 static int tldap_hex2char(const char *x)
1206 if (isxdigit(x[0]) && isxdigit(x[1])) {
1207 const char h1 = x[0], h2 = x[1];
1210 if (h1 >= 'a') c = h1 - (int)'a' + 10;
1211 else if (h1 >= 'A') c = h1 - (int)'A' + 10;
1212 else if (h1 >= '0') c = h1 - (int)'0';
1214 if (h2 >= 'a') c += h2 - (int)'a' + 10;
1215 else if (h2 >= 'A') c += h2 - (int)'A' + 10;
1216 else if (h2 >= '0') c += h2 - (int)'0';
1224 static bool tldap_find_first_star(const char *val, const char **star)
1228 for (s = val; *s; s++) {
1231 if (isxdigit(s[1]) && isxdigit(s[2])) {
1235 /* not hex based escape, check older syntax */
1244 /* invalid escape sequence */
1249 /* end of val, nothing found */
1259 /* string ended without closing parenthesis, filter is malformed */
1263 static bool tldap_unescape_inplace(char *value, size_t *val_len)
1268 for (i = 0,p = 0; i < *val_len; i++) {
1274 /* these must be escaped */
1278 if (!value[i + 1]) {
1284 /* LDAPv3 escaped */
1285 c = tldap_hex2char(&value[i]);
1286 if (c >= 0 && c < 256) {
1293 /* LDAPv2 escaped */
1299 value[p] = value[i];
1310 value[p] = value[i];
1319 static bool tldap_push_filter_basic(struct tldap_context *ld,
1320 struct asn1_data *data,
1322 static bool tldap_push_filter_substring(struct tldap_context *ld,
1323 struct asn1_data *data,
1326 static bool tldap_push_filter_int(struct tldap_context *ld,
1327 struct asn1_data *data,
1330 const char *s = *_s;
1334 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1335 "Incomplete or malformed filter\n");
1340 /* we are right after a parenthesis,
1341 * find out what op we have at hand */
1344 tldap_debug(ld, TLDAP_DEBUG_TRACE, "Filter op: AND\n");
1345 if (!asn1_push_tag(data, TLDAP_FILTER_AND)) return false;
1350 tldap_debug(ld, TLDAP_DEBUG_TRACE, "Filter op: OR\n");
1351 if (!asn1_push_tag(data, TLDAP_FILTER_OR)) return false;
1356 tldap_debug(ld, TLDAP_DEBUG_TRACE, "Filter op: NOT\n");
1357 if (!asn1_push_tag(data, TLDAP_FILTER_NOT)) return false;
1359 ret = tldap_push_filter_int(ld, data, &s);
1363 if (!asn1_pop_tag(data)) return false;
1368 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1369 "Invalid parenthesis '%c'\n", *s);
1373 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1374 "Invalid filter termination\n");
1378 ret = tldap_push_filter_basic(ld, data, &s);
1385 /* only and/or filters get here.
1386 * go through the list of filters */
1389 /* RFC 4526: empty and/or */
1390 if (!asn1_pop_tag(data)) return false;
1395 ret = tldap_push_filter_int(ld, data, &s);
1401 /* end of list, return */
1402 if (!asn1_pop_tag(data)) return false;
1409 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1410 "Incomplete or malformed filter\n");
1415 if (asn1_has_error(data)) {
1424 static bool tldap_push_filter_basic(struct tldap_context *ld,
1425 struct asn1_data *data,
1428 TALLOC_CTX *tmpctx = talloc_tos();
1429 const char *s = *_s;
1437 size_t type_len = 0;
1440 bool write_octect = true;
1443 eq = strchr(s, '=');
1445 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1446 "Invalid filter, missing equal sign\n");
1455 if (!asn1_push_tag(data, TLDAP_FILTER_LE)) return false;
1459 if (!asn1_push_tag(data, TLDAP_FILTER_GE)) return false;
1463 if (!asn1_push_tag(data, TLDAP_FILTER_APX)) return false;
1467 if (!asn1_push_tag(data, TLDAP_FILTER_EXT)) return false;
1468 write_octect = false;
1474 if (*s == ':') { /* [:dn]:rule:= value */
1476 /* malformed filter */
1480 } else { /* type[:dn][:rule]:= value */
1482 dn = strchr(s, ':');
1483 type_len = dn - type;
1484 if (dn == e) { /* type:= value */
1491 rule = strchr(dn, ':');
1495 if ((rule == dn + 1) || rule + 1 == e) {
1496 /* malformed filter, contains "::" */
1500 if (strncasecmp_m(dn, "dn:", 3) != 0) {
1505 /* malformed filter. With two
1506 * optionals, the first must be "dn"
1519 if (!type && !dn && !rule) {
1520 /* malformed filter, there must be at least one */
1525 MatchingRuleAssertion ::= SEQUENCE {
1526 matchingRule [1] MatchingRuleID OPTIONAL,
1527 type [2] AttributeDescription OPTIONAL,
1528 matchValue [3] AssertionValue,
1529 dnAttributes [4] BOOLEAN DEFAULT FALSE
1533 /* check and add rule */
1535 ret = tldap_is_attrdesc(rule, e - rule, true);
1539 if (!asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(1))) return false;
1540 if (!asn1_write(data, rule, e - rule)) return false;
1541 if (!asn1_pop_tag(data)) return false;
1544 /* check and add type */
1546 ret = tldap_is_attrdesc(type, type_len, false);
1550 if (!asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(2))) return false;
1551 if (!asn1_write(data, type, type_len)) return false;
1552 if (!asn1_pop_tag(data)) return false;
1555 uval = tldap_get_val(tmpctx, val, _s);
1559 uval_len = *_s - val;
1560 ret = tldap_unescape_inplace(uval, &uval_len);
1565 if (!asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(3))) return false;
1566 if (!asn1_write(data, uval, uval_len)) return false;
1567 if (!asn1_pop_tag(data)) return false;
1569 if (!asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(4))) return false;
1570 if (!asn1_write_uint8(data, dn?1:0)) return false;
1571 if (!asn1_pop_tag(data)) return false;
1577 ret = tldap_is_attrdesc(s, e - s, false);
1582 if (strncmp(val, "*)", 2) == 0) {
1584 if (!asn1_push_tag(data, TLDAP_FILTER_PRES)) return false;
1585 if (!asn1_write(data, s, e - s)) return false;
1587 write_octect = false;
1591 ret = tldap_find_first_star(val, &star);
1597 if (!asn1_push_tag(data, TLDAP_FILTER_SUB)) return false;
1598 if (!asn1_write_OctetString(data, s, e - s)) return false;
1599 ret = tldap_push_filter_substring(ld, data, val, &s);
1604 write_octect = false;
1608 /* if nothing else, then it is just equality */
1609 if (!asn1_push_tag(data, TLDAP_FILTER_EQ)) return false;
1610 write_octect = true;
1615 uval = tldap_get_val(tmpctx, val, _s);
1619 uval_len = *_s - val;
1620 ret = tldap_unescape_inplace(uval, &uval_len);
1625 if (!asn1_write_OctetString(data, s, e - s)) return false;
1626 if (!asn1_write_OctetString(data, uval, uval_len)) return false;
1629 if (asn1_has_error(data)) {
1632 return asn1_pop_tag(data);
1635 static bool tldap_push_filter_substring(struct tldap_context *ld,
1636 struct asn1_data *data,
1640 TALLOC_CTX *tmpctx = talloc_tos();
1641 bool initial = true;
1648 SubstringFilter ::= SEQUENCE {
1649 type AttributeDescription,
1650 -- at least one must be present
1651 substrings SEQUENCE OF CHOICE {
1652 initial [0] LDAPString,
1654 final [2] LDAPString } }
1656 if (!asn1_push_tag(data, ASN1_SEQUENCE(0))) return false;
1659 ret = tldap_find_first_star(val, &star);
1663 chunk_len = star - val;
1667 if (!initial && chunk_len == 0) {
1668 /* found '**', which is illegal */
1684 if (initial && chunk_len == 0) {
1690 chunk = talloc_strndup(tmpctx, val, chunk_len);
1694 ret = tldap_unescape_inplace(chunk, &chunk_len);
1701 if (!asn1_push_tag(data, TLDAP_SUB_INI)) return false;
1704 if (!asn1_push_tag(data, TLDAP_SUB_ANY)) return false;
1708 if (!asn1_push_tag(data, TLDAP_SUB_FIN)) return false;
1714 if (!asn1_write(data, chunk, chunk_len)) return false;
1715 if (!asn1_pop_tag(data)) return false;
1719 } while (*star == '*');
1723 /* end of sequence */
1724 return asn1_pop_tag(data);
1727 /* NOTE: although openldap libraries allow for spaces in some places, mosly
1728 * around parenthesis, we do not allow any spaces (except in values of
1729 * course) as I couldn't fine any place in RFC 4512 or RFC 4515 where
1730 * leading or trailing spaces where allowed.
1732 static bool tldap_push_filter(struct tldap_context *ld,
1733 struct asn1_data *data,
1736 const char *s = filter;
1739 ret = tldap_push_filter_int(ld, data, &s);
1741 tldap_debug(ld, TLDAP_DEBUG_ERROR,
1742 "Incomplete or malformed filter\n");
1748 /*****************************************************************************/
1750 static void tldap_search_done(struct tevent_req *subreq);
1752 struct tevent_req *tldap_search_send(TALLOC_CTX *mem_ctx,
1753 struct tevent_context *ev,
1754 struct tldap_context *ld,
1755 const char *base, int scope,
1760 struct tldap_control *sctrls,
1762 struct tldap_control *cctrls,
1768 struct tevent_req *req, *subreq;
1769 struct tldap_req_state *state;
1772 req = tldap_req_create(mem_ctx, ld, &state);
1777 if (!asn1_push_tag(state->out, TLDAP_REQ_SEARCH)) goto encoding_error;
1778 if (!asn1_write_OctetString(state->out, base, strlen(base))) goto encoding_error;
1779 if (!asn1_write_enumerated(state->out, scope)) goto encoding_error;
1780 if (!asn1_write_enumerated(state->out, deref)) goto encoding_error;
1781 if (!asn1_write_Integer(state->out, sizelimit)) goto encoding_error;
1782 if (!asn1_write_Integer(state->out, timelimit)) goto encoding_error;
1783 if (!asn1_write_BOOLEAN(state->out, attrsonly)) goto encoding_error;
1785 if (!tldap_push_filter(ld, state->out, filter)) {
1786 goto encoding_error;
1789 if (!asn1_push_tag(state->out, ASN1_SEQUENCE(0))) goto encoding_error;
1790 for (i=0; i<num_attrs; i++) {
1791 if (!asn1_write_OctetString(state->out, attrs[i], strlen(attrs[i]))) goto encoding_error;
1793 if (!asn1_pop_tag(state->out)) goto encoding_error;
1794 if (!asn1_pop_tag(state->out)) goto encoding_error;
1796 subreq = tldap_msg_send(state, ev, ld, state->id, state->out,
1797 sctrls, num_sctrls);
1798 if (tevent_req_nomem(subreq, req)) {
1799 return tevent_req_post(req, ev);
1801 tevent_req_set_callback(subreq, tldap_search_done, req);
1805 tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR);
1806 return tevent_req_post(req, ev);
1809 static void tldap_search_done(struct tevent_req *subreq)
1811 struct tevent_req *req = tevent_req_callback_data(
1812 subreq, struct tevent_req);
1813 struct tldap_req_state *state = tevent_req_data(
1814 req, struct tldap_req_state);
1817 rc = tldap_msg_recv(subreq, state, &state->result);
1818 if (tevent_req_ldap_error(req, rc)) {
1821 switch (state->result->type) {
1822 case TLDAP_RES_SEARCH_ENTRY:
1823 case TLDAP_RES_SEARCH_REFERENCE:
1824 if (!tldap_msg_set_pending(subreq)) {
1825 tevent_req_oom(req);
1828 tevent_req_notify_callback(req);
1830 case TLDAP_RES_SEARCH_RESULT:
1831 TALLOC_FREE(subreq);
1832 if (!asn1_start_tag(state->result->data,
1833 state->result->type) ||
1834 !tldap_decode_response(state) ||
1835 !asn1_end_tag(state->result->data) ||
1836 !tldap_decode_controls(state)) {
1837 tevent_req_ldap_error(req, TLDAP_DECODING_ERROR);
1840 tevent_req_done(req);
1843 tevent_req_ldap_error(req, TLDAP_PROTOCOL_ERROR);
1848 TLDAPRC tldap_search_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
1849 struct tldap_message **pmsg)
1851 struct tldap_req_state *state = tevent_req_data(
1852 req, struct tldap_req_state);
1855 if (!tevent_req_is_in_progress(req)
1856 && tevent_req_is_ldap_error(req, &rc)) {
1860 if (tevent_req_is_in_progress(req)) {
1861 switch (state->result->type) {
1862 case TLDAP_RES_SEARCH_ENTRY:
1863 case TLDAP_RES_SEARCH_REFERENCE:
1866 return TLDAP_OPERATIONS_ERROR;
1870 *pmsg = talloc_move(mem_ctx, &state->result);
1871 return TLDAP_SUCCESS;
1874 struct tldap_search_all_state {
1875 struct tldap_message **msgs;
1876 struct tldap_message *result;
1879 static void tldap_search_all_done(struct tevent_req *subreq);
1881 struct tevent_req *tldap_search_all_send(
1882 TALLOC_CTX *mem_ctx, struct tevent_context *ev,
1883 struct tldap_context *ld, const char *base, int scope,
1884 const char *filter, const char **attrs, int num_attrs, int attrsonly,
1885 struct tldap_control *sctrls, int num_sctrls,
1886 struct tldap_control *cctrls, int num_cctrls,
1887 int timelimit, int sizelimit, int deref)
1889 struct tevent_req *req, *subreq;
1890 struct tldap_search_all_state *state;
1892 req = tevent_req_create(mem_ctx, &state,
1893 struct tldap_search_all_state);
1898 subreq = tldap_search_send(state, ev, ld, base, scope, filter,
1899 attrs, num_attrs, attrsonly,
1900 sctrls, num_sctrls, cctrls, num_cctrls,
1901 timelimit, sizelimit, deref);
1902 if (tevent_req_nomem(subreq, req)) {
1903 return tevent_req_post(req, ev);
1905 tevent_req_set_callback(subreq, tldap_search_all_done, req);
1909 static void tldap_search_all_done(struct tevent_req *subreq)
1911 struct tevent_req *req = tevent_req_callback_data(
1912 subreq, struct tevent_req);
1913 struct tldap_search_all_state *state = tevent_req_data(
1914 req, struct tldap_search_all_state);
1915 struct tldap_message *msg, **tmp;
1920 rc = tldap_search_recv(subreq, state, &msg);
1921 /* No TALLOC_FREE(subreq), this is multi-step */
1922 if (tevent_req_ldap_error(req, rc)) {
1923 TALLOC_FREE(subreq);
1927 msgtype = tldap_msg_type(msg);
1928 if (msgtype == TLDAP_RES_SEARCH_RESULT) {
1929 state->result = msg;
1930 tevent_req_done(req);
1934 num_msgs = talloc_array_length(state->msgs);
1936 tmp = talloc_realloc(state, state->msgs, struct tldap_message *,
1938 if (tevent_req_nomem(tmp, req)) {
1942 state->msgs[num_msgs] = talloc_move(state->msgs, &msg);
1945 TLDAPRC tldap_search_all_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
1946 struct tldap_message ***msgs,
1947 struct tldap_message **result)
1949 struct tldap_search_all_state *state = tevent_req_data(
1950 req, struct tldap_search_all_state);
1953 if (tevent_req_is_ldap_error(req, &rc)) {
1958 *msgs = talloc_move(mem_ctx, &state->msgs);
1960 if (result != NULL) {
1961 *result = talloc_move(mem_ctx, &state->result);
1964 return TLDAP_SUCCESS;
1967 TLDAPRC tldap_search(struct tldap_context *ld,
1968 const char *base, int scope, const char *filter,
1969 const char **attrs, int num_attrs, int attrsonly,
1970 struct tldap_control *sctrls, int num_sctrls,
1971 struct tldap_control *cctrls, int num_cctrls,
1972 int timelimit, int sizelimit, int deref,
1973 TALLOC_CTX *mem_ctx, struct tldap_message ***pmsgs)
1976 struct tevent_context *ev;
1977 struct tevent_req *req;
1978 TLDAPRC rc = TLDAP_NO_MEMORY;
1979 struct tldap_message **msgs;
1980 struct tldap_message *result;
1982 if (tldap_pending_reqs(ld)) {
1986 frame = talloc_stackframe();
1988 ev = samba_tevent_context_init(frame);
1992 req = tldap_search_all_send(frame, ev, ld, base, scope, filter,
1993 attrs, num_attrs, attrsonly,
1994 sctrls, num_sctrls, cctrls, num_cctrls,
1995 timelimit, sizelimit, deref);
1999 if (!tevent_req_poll(req, ev)) {
2000 rc = TLDAP_OPERATIONS_ERROR;
2003 rc = tldap_search_all_recv(req, frame, &msgs, &result);
2005 if (!TLDAP_RC_IS_SUCCESS(rc)) {
2009 TALLOC_FREE(ld->last_msg);
2010 ld->last_msg = talloc_move(ld, &result);
2012 if (pmsgs != NULL) {
2013 *pmsgs = talloc_move(mem_ctx, &msgs);
2020 static bool tldap_parse_search_entry(struct tldap_message *msg)
2022 int num_attribs = 0;
2024 if (msg->type != TLDAP_RES_SEARCH_ENTRY) {
2027 if (!asn1_start_tag(msg->data, TLDAP_RES_SEARCH_ENTRY)) {
2033 if (!asn1_read_OctetString_talloc(msg, msg->data, &msg->dn)) return false;
2035 if (msg->dn == NULL) {
2040 * Attributes: We overallocate msg->attribs by one, so that while
2041 * looping over the attributes we can directly parse into the last
2042 * array element. Same for the values in the inner loop.
2045 msg->attribs = talloc_array(msg, struct tldap_attribute, 1);
2046 if (msg->attribs == NULL) {
2050 if (!asn1_start_tag(msg->data, ASN1_SEQUENCE(0))) return false;
2051 while (asn1_peek_tag(msg->data, ASN1_SEQUENCE(0))) {
2052 struct tldap_attribute *attrib;
2055 attrib = &msg->attribs[num_attribs];
2056 attrib->values = talloc_array(msg->attribs, DATA_BLOB, 1);
2057 if (attrib->values == NULL) {
2060 if (!asn1_start_tag(msg->data, ASN1_SEQUENCE(0))) return false;
2061 if (!asn1_read_OctetString_talloc(msg->attribs, msg->data,
2062 &attrib->name)) return false;
2063 if (!asn1_start_tag(msg->data, ASN1_SET)) return false;
2065 while (asn1_peek_tag(msg->data, ASN1_OCTET_STRING)) {
2066 if (!asn1_read_OctetString(msg->data, msg,
2067 &attrib->values[num_values])) return false;
2069 attrib->values = talloc_realloc(
2070 msg->attribs, attrib->values, DATA_BLOB,
2072 if (attrib->values == NULL) {
2077 attrib->values = talloc_realloc(msg->attribs, attrib->values,
2078 DATA_BLOB, num_values);
2079 attrib->num_values = num_values;
2081 if (!asn1_end_tag(msg->data)) return false; /* ASN1_SET */
2082 if (!asn1_end_tag(msg->data)) return false; /* ASN1_SEQUENCE(0) */
2083 msg->attribs = talloc_realloc(
2084 msg, msg->attribs, struct tldap_attribute,
2086 if (msg->attribs == NULL) {
2091 msg->attribs = talloc_realloc(
2092 msg, msg->attribs, struct tldap_attribute, num_attribs);
2093 return asn1_end_tag(msg->data);
2096 bool tldap_entry_dn(struct tldap_message *msg, char **dn)
2098 if ((msg->dn == NULL) && (!tldap_parse_search_entry(msg))) {
2105 bool tldap_entry_attributes(struct tldap_message *msg,
2106 struct tldap_attribute **attributes,
2107 int *num_attributes)
2109 if ((msg->dn == NULL) && (!tldap_parse_search_entry(msg))) {
2112 *attributes = msg->attribs;
2113 *num_attributes = talloc_array_length(msg->attribs);
2117 static bool tldap_decode_controls(struct tldap_req_state *state)
2119 struct tldap_message *msg = state->result;
2120 struct asn1_data *data = msg->data;
2121 struct tldap_control *sctrls = NULL;
2122 int num_controls = 0;
2125 msg->res_sctrls = NULL;
2127 if (!asn1_peek_tag(data, ASN1_CONTEXT(0))) {
2131 if (!asn1_start_tag(data, ASN1_CONTEXT(0))) goto out;
2133 while (asn1_peek_tag(data, ASN1_SEQUENCE(0))) {
2134 struct tldap_control *c;
2137 sctrls = talloc_realloc(msg, sctrls, struct tldap_control,
2139 if (sctrls == NULL) {
2142 c = &sctrls[num_controls];
2144 if (!asn1_start_tag(data, ASN1_SEQUENCE(0))) goto out;
2145 if (!asn1_read_OctetString_talloc(msg, data, &oid)) goto out;
2146 if (asn1_has_error(data) || (oid == NULL)) {
2150 if (asn1_peek_tag(data, ASN1_BOOLEAN)) {
2151 if (!asn1_read_BOOLEAN(data, &c->critical)) goto out;
2153 c->critical = false;
2155 c->value = data_blob_null;
2156 if (asn1_peek_tag(data, ASN1_OCTET_STRING) &&
2157 !asn1_read_OctetString(data, msg, &c->value)) {
2160 if (!asn1_end_tag(data)) goto out; /* ASN1_SEQUENCE(0) */
2165 if (!asn1_end_tag(data)) goto out; /* ASN1_CONTEXT(0) */
2172 msg->res_sctrls = sctrls;
2174 TALLOC_FREE(sctrls);
2179 static void tldap_simple_done(struct tevent_req *subreq, int type)
2181 struct tevent_req *req = tevent_req_callback_data(
2182 subreq, struct tevent_req);
2183 struct tldap_req_state *state = tevent_req_data(
2184 req, struct tldap_req_state);
2187 rc = tldap_msg_recv(subreq, state, &state->result);
2188 TALLOC_FREE(subreq);
2189 if (tevent_req_ldap_error(req, rc)) {
2192 if (state->result->type != type) {
2193 tevent_req_ldap_error(req, TLDAP_PROTOCOL_ERROR);
2196 if (!asn1_start_tag(state->result->data, state->result->type) ||
2197 !tldap_decode_response(state) ||
2198 !asn1_end_tag(state->result->data) ||
2199 !tldap_decode_controls(state)) {
2200 tevent_req_ldap_error(req, TLDAP_DECODING_ERROR);
2203 if (!TLDAP_RC_IS_SUCCESS(state->result->lderr)) {
2204 tevent_req_ldap_error(req, state->result->lderr);
2207 tevent_req_done(req);
2210 static TLDAPRC tldap_simple_recv(struct tevent_req *req)
2213 if (tevent_req_is_ldap_error(req, &rc)) {
2216 return TLDAP_SUCCESS;
2219 static void tldap_add_done(struct tevent_req *subreq);
2221 struct tevent_req *tldap_add_send(TALLOC_CTX *mem_ctx,
2222 struct tevent_context *ev,
2223 struct tldap_context *ld,
2225 struct tldap_mod *attributes,
2227 struct tldap_control *sctrls,
2229 struct tldap_control *cctrls,
2232 struct tevent_req *req, *subreq;
2233 struct tldap_req_state *state;
2236 req = tldap_req_create(mem_ctx, ld, &state);
2241 if (!asn1_push_tag(state->out, TLDAP_REQ_ADD)) goto err;
2242 if (!asn1_write_OctetString(state->out, dn, strlen(dn))) goto err;
2243 if (!asn1_push_tag(state->out, ASN1_SEQUENCE(0))) goto err;
2245 for (i=0; i<num_attributes; i++) {
2246 struct tldap_mod *attrib = &attributes[i];
2247 if (!asn1_push_tag(state->out, ASN1_SEQUENCE(0))) goto err;
2248 if (!asn1_write_OctetString(state->out, attrib->attribute,
2249 strlen(attrib->attribute))) goto err;
2250 if (!asn1_push_tag(state->out, ASN1_SET)) goto err;
2251 for (j=0; j<attrib->num_values; j++) {
2252 if (!asn1_write_OctetString(state->out,
2253 attrib->values[j].data,
2254 attrib->values[j].length)) goto err;
2256 if (!asn1_pop_tag(state->out)) goto err;
2257 if (!asn1_pop_tag(state->out)) goto err;
2260 if (!asn1_pop_tag(state->out)) goto err;
2261 if (!asn1_pop_tag(state->out)) goto err;
2263 subreq = tldap_msg_send(state, ev, ld, state->id, state->out,
2264 sctrls, num_sctrls);
2265 if (tevent_req_nomem(subreq, req)) {
2266 return tevent_req_post(req, ev);
2268 tevent_req_set_callback(subreq, tldap_add_done, req);
2273 tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR);
2274 return tevent_req_post(req, ev);
2277 static void tldap_add_done(struct tevent_req *subreq)
2279 tldap_simple_done(subreq, TLDAP_RES_ADD);
2282 TLDAPRC tldap_add_recv(struct tevent_req *req)
2284 return tldap_simple_recv(req);
2287 TLDAPRC tldap_add(struct tldap_context *ld, const char *dn,
2288 struct tldap_mod *attributes, int num_attributes,
2289 struct tldap_control *sctrls, int num_sctrls,
2290 struct tldap_control *cctrls, int num_cctrls)
2292 TALLOC_CTX *frame = talloc_stackframe();
2293 struct tevent_context *ev;
2294 struct tevent_req *req;
2295 TLDAPRC rc = TLDAP_NO_MEMORY;
2297 ev = samba_tevent_context_init(frame);
2301 req = tldap_add_send(frame, ev, ld, dn, attributes, num_attributes,
2302 sctrls, num_sctrls, cctrls, num_cctrls);
2306 if (!tevent_req_poll(req, ev)) {
2307 rc = TLDAP_OPERATIONS_ERROR;
2310 rc = tldap_add_recv(req);
2311 tldap_save_msg(ld, req);
2317 static void tldap_modify_done(struct tevent_req *subreq);
2319 struct tevent_req *tldap_modify_send(TALLOC_CTX *mem_ctx,
2320 struct tevent_context *ev,
2321 struct tldap_context *ld,
2323 struct tldap_mod *mods, int num_mods,
2324 struct tldap_control *sctrls,
2326 struct tldap_control *cctrls,
2329 struct tevent_req *req, *subreq;
2330 struct tldap_req_state *state;
2333 req = tldap_req_create(mem_ctx, ld, &state);
2338 if (!asn1_push_tag(state->out, TLDAP_REQ_MODIFY)) goto err;
2339 if (!asn1_write_OctetString(state->out, dn, strlen(dn))) goto err;
2340 if (!asn1_push_tag(state->out, ASN1_SEQUENCE(0))) goto err;
2342 for (i=0; i<num_mods; i++) {
2343 struct tldap_mod *mod = &mods[i];
2344 if (!asn1_push_tag(state->out, ASN1_SEQUENCE(0))) goto err;
2345 if (!asn1_write_enumerated(state->out, mod->mod_op)) goto err;
2346 if (!asn1_push_tag(state->out, ASN1_SEQUENCE(0))) goto err;
2347 if (!asn1_write_OctetString(state->out, mod->attribute,
2348 strlen(mod->attribute))) goto err;
2349 if (!asn1_push_tag(state->out, ASN1_SET)) goto err;
2350 for (j=0; j<mod->num_values; j++) {
2351 if (!asn1_write_OctetString(state->out,
2352 mod->values[j].data,
2353 mod->values[j].length)) goto err;
2355 if (!asn1_pop_tag(state->out)) goto err;
2356 if (!asn1_pop_tag(state->out)) goto err;
2357 if (!asn1_pop_tag(state->out)) goto err;
2360 if (!asn1_pop_tag(state->out)) goto err;
2361 if (!asn1_pop_tag(state->out)) goto err;
2363 subreq = tldap_msg_send(state, ev, ld, state->id, state->out,
2364 sctrls, num_sctrls);
2365 if (tevent_req_nomem(subreq, req)) {
2366 return tevent_req_post(req, ev);
2368 tevent_req_set_callback(subreq, tldap_modify_done, req);
2373 tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR);
2374 return tevent_req_post(req, ev);
2377 static void tldap_modify_done(struct tevent_req *subreq)
2379 tldap_simple_done(subreq, TLDAP_RES_MODIFY);
2382 TLDAPRC tldap_modify_recv(struct tevent_req *req)
2384 return tldap_simple_recv(req);
2387 TLDAPRC tldap_modify(struct tldap_context *ld, const char *dn,
2388 struct tldap_mod *mods, int num_mods,
2389 struct tldap_control *sctrls, int num_sctrls,
2390 struct tldap_control *cctrls, int num_cctrls)
2392 TALLOC_CTX *frame = talloc_stackframe();
2393 struct tevent_context *ev;
2394 struct tevent_req *req;
2395 TLDAPRC rc = TLDAP_NO_MEMORY;
2397 ev = samba_tevent_context_init(frame);
2401 req = tldap_modify_send(frame, ev, ld, dn, mods, num_mods,
2402 sctrls, num_sctrls, cctrls, num_cctrls);
2406 if (!tevent_req_poll(req, ev)) {
2407 rc = TLDAP_OPERATIONS_ERROR;
2410 rc = tldap_modify_recv(req);
2411 tldap_save_msg(ld, req);
2417 static void tldap_delete_done(struct tevent_req *subreq);
2419 struct tevent_req *tldap_delete_send(TALLOC_CTX *mem_ctx,
2420 struct tevent_context *ev,
2421 struct tldap_context *ld,
2423 struct tldap_control *sctrls,
2425 struct tldap_control *cctrls,
2428 struct tevent_req *req, *subreq;
2429 struct tldap_req_state *state;
2431 req = tldap_req_create(mem_ctx, ld, &state);
2436 if (!asn1_push_tag(state->out, TLDAP_REQ_DELETE)) goto err;
2437 if (!asn1_write(state->out, dn, strlen(dn))) goto err;
2438 if (!asn1_pop_tag(state->out)) goto err;
2440 subreq = tldap_msg_send(state, ev, ld, state->id, state->out,
2441 sctrls, num_sctrls);
2442 if (tevent_req_nomem(subreq, req)) {
2443 return tevent_req_post(req, ev);
2445 tevent_req_set_callback(subreq, tldap_delete_done, req);
2450 tevent_req_ldap_error(req, TLDAP_ENCODING_ERROR);
2451 return tevent_req_post(req, ev);
2454 static void tldap_delete_done(struct tevent_req *subreq)
2456 tldap_simple_done(subreq, TLDAP_RES_DELETE);
2459 TLDAPRC tldap_delete_recv(struct tevent_req *req)
2461 return tldap_simple_recv(req);
2464 TLDAPRC tldap_delete(struct tldap_context *ld, const char *dn,
2465 struct tldap_control *sctrls, int num_sctrls,
2466 struct tldap_control *cctrls, int num_cctrls)
2468 TALLOC_CTX *frame = talloc_stackframe();
2469 struct tevent_context *ev;
2470 struct tevent_req *req;
2471 TLDAPRC rc = TLDAP_NO_MEMORY;
2473 ev = samba_tevent_context_init(frame);
2477 req = tldap_delete_send(frame, ev, ld, dn, sctrls, num_sctrls,
2478 cctrls, num_cctrls);
2482 if (!tevent_req_poll(req, ev)) {
2483 rc = TLDAP_OPERATIONS_ERROR;
2486 rc = tldap_delete_recv(req);
2487 tldap_save_msg(ld, req);
2493 int tldap_msg_id(const struct tldap_message *msg)
2498 int tldap_msg_type(const struct tldap_message *msg)
2503 const char *tldap_msg_matcheddn(struct tldap_message *msg)
2508 return msg->res_matcheddn;
2511 const char *tldap_msg_diagnosticmessage(struct tldap_message *msg)
2516 return msg->res_diagnosticmessage;
2519 const char *tldap_msg_referral(struct tldap_message *msg)
2524 return msg->res_referral;
2527 void tldap_msg_sctrls(struct tldap_message *msg, int *num_sctrls,
2528 struct tldap_control **sctrls)
2535 *sctrls = msg->res_sctrls;
2536 *num_sctrls = talloc_array_length(msg->res_sctrls);
2539 struct tldap_message *tldap_ctx_lastmsg(struct tldap_context *ld)
2541 return ld->last_msg;
2544 static const struct { TLDAPRC rc; const char *string; } tldaprc_errmap[] =
2548 { TLDAP_OPERATIONS_ERROR,
2549 "TLDAP_OPERATIONS_ERROR" },
2550 { TLDAP_PROTOCOL_ERROR,
2551 "TLDAP_PROTOCOL_ERROR" },
2552 { TLDAP_TIMELIMIT_EXCEEDED,
2553 "TLDAP_TIMELIMIT_EXCEEDED" },
2554 { TLDAP_SIZELIMIT_EXCEEDED,
2555 "TLDAP_SIZELIMIT_EXCEEDED" },
2556 { TLDAP_COMPARE_FALSE,
2557 "TLDAP_COMPARE_FALSE" },
2558 { TLDAP_COMPARE_TRUE,
2559 "TLDAP_COMPARE_TRUE" },
2560 { TLDAP_STRONG_AUTH_NOT_SUPPORTED,
2561 "TLDAP_STRONG_AUTH_NOT_SUPPORTED" },
2562 { TLDAP_STRONG_AUTH_REQUIRED,
2563 "TLDAP_STRONG_AUTH_REQUIRED" },
2566 { TLDAP_ADMINLIMIT_EXCEEDED,
2567 "TLDAP_ADMINLIMIT_EXCEEDED" },
2568 { TLDAP_UNAVAILABLE_CRITICAL_EXTENSION,
2569 "TLDAP_UNAVAILABLE_CRITICAL_EXTENSION" },
2570 { TLDAP_CONFIDENTIALITY_REQUIRED,
2571 "TLDAP_CONFIDENTIALITY_REQUIRED" },
2572 { TLDAP_SASL_BIND_IN_PROGRESS,
2573 "TLDAP_SASL_BIND_IN_PROGRESS" },
2574 { TLDAP_NO_SUCH_ATTRIBUTE,
2575 "TLDAP_NO_SUCH_ATTRIBUTE" },
2576 { TLDAP_UNDEFINED_TYPE,
2577 "TLDAP_UNDEFINED_TYPE" },
2578 { TLDAP_INAPPROPRIATE_MATCHING,
2579 "TLDAP_INAPPROPRIATE_MATCHING" },
2580 { TLDAP_CONSTRAINT_VIOLATION,
2581 "TLDAP_CONSTRAINT_VIOLATION" },
2582 { TLDAP_TYPE_OR_VALUE_EXISTS,
2583 "TLDAP_TYPE_OR_VALUE_EXISTS" },
2584 { TLDAP_INVALID_SYNTAX,
2585 "TLDAP_INVALID_SYNTAX" },
2586 { TLDAP_NO_SUCH_OBJECT,
2587 "TLDAP_NO_SUCH_OBJECT" },
2588 { TLDAP_ALIAS_PROBLEM,
2589 "TLDAP_ALIAS_PROBLEM" },
2590 { TLDAP_INVALID_DN_SYNTAX,
2591 "TLDAP_INVALID_DN_SYNTAX" },
2594 { TLDAP_ALIAS_DEREF_PROBLEM,
2595 "TLDAP_ALIAS_DEREF_PROBLEM" },
2596 { TLDAP_INAPPROPRIATE_AUTH,
2597 "TLDAP_INAPPROPRIATE_AUTH" },
2598 { TLDAP_INVALID_CREDENTIALS,
2599 "TLDAP_INVALID_CREDENTIALS" },
2600 { TLDAP_INSUFFICIENT_ACCESS,
2601 "TLDAP_INSUFFICIENT_ACCESS" },
2604 { TLDAP_UNAVAILABLE,
2605 "TLDAP_UNAVAILABLE" },
2606 { TLDAP_UNWILLING_TO_PERFORM,
2607 "TLDAP_UNWILLING_TO_PERFORM" },
2608 { TLDAP_LOOP_DETECT,
2609 "TLDAP_LOOP_DETECT" },
2610 { TLDAP_NAMING_VIOLATION,
2611 "TLDAP_NAMING_VIOLATION" },
2612 { TLDAP_OBJECT_CLASS_VIOLATION,
2613 "TLDAP_OBJECT_CLASS_VIOLATION" },
2614 { TLDAP_NOT_ALLOWED_ON_NONLEAF,
2615 "TLDAP_NOT_ALLOWED_ON_NONLEAF" },
2616 { TLDAP_NOT_ALLOWED_ON_RDN,
2617 "TLDAP_NOT_ALLOWED_ON_RDN" },
2618 { TLDAP_ALREADY_EXISTS,
2619 "TLDAP_ALREADY_EXISTS" },
2620 { TLDAP_NO_OBJECT_CLASS_MODS,
2621 "TLDAP_NO_OBJECT_CLASS_MODS" },
2622 { TLDAP_RESULTS_TOO_LARGE,
2623 "TLDAP_RESULTS_TOO_LARGE" },
2624 { TLDAP_AFFECTS_MULTIPLE_DSAS,
2625 "TLDAP_AFFECTS_MULTIPLE_DSAS" },
2628 { TLDAP_SERVER_DOWN,
2629 "TLDAP_SERVER_DOWN" },
2630 { TLDAP_LOCAL_ERROR,
2631 "TLDAP_LOCAL_ERROR" },
2632 { TLDAP_ENCODING_ERROR,
2633 "TLDAP_ENCODING_ERROR" },
2634 { TLDAP_DECODING_ERROR,
2635 "TLDAP_DECODING_ERROR" },
2638 { TLDAP_AUTH_UNKNOWN,
2639 "TLDAP_AUTH_UNKNOWN" },
2640 { TLDAP_FILTER_ERROR,
2641 "TLDAP_FILTER_ERROR" },
2642 { TLDAP_USER_CANCELLED,
2643 "TLDAP_USER_CANCELLED" },
2644 { TLDAP_PARAM_ERROR,
2645 "TLDAP_PARAM_ERROR" },
2647 "TLDAP_NO_MEMORY" },
2648 { TLDAP_CONNECT_ERROR,
2649 "TLDAP_CONNECT_ERROR" },
2650 { TLDAP_NOT_SUPPORTED,
2651 "TLDAP_NOT_SUPPORTED" },
2652 { TLDAP_CONTROL_NOT_FOUND,
2653 "TLDAP_CONTROL_NOT_FOUND" },
2654 { TLDAP_NO_RESULTS_RETURNED,
2655 "TLDAP_NO_RESULTS_RETURNED" },
2656 { TLDAP_MORE_RESULTS_TO_RETURN,
2657 "TLDAP_MORE_RESULTS_TO_RETURN" },
2658 { TLDAP_CLIENT_LOOP,
2659 "TLDAP_CLIENT_LOOP" },
2660 { TLDAP_REFERRAL_LIMIT_EXCEEDED,
2661 "TLDAP_REFERRAL_LIMIT_EXCEEDED" },
2664 const char *tldap_rc2string(TLDAPRC rc)
2668 for (i=0; i<ARRAY_SIZE(tldaprc_errmap); i++) {
2669 if (TLDAP_RC_EQUAL(rc, tldaprc_errmap[i].rc)) {
2670 return tldaprc_errmap[i].string;
2674 return "Unknown LDAP Error";