2 Unix SMB/CIFS mplementation.
3 LDAP protocol helper functions for SAMBA
5 Copyright (C) Simo Sorce 2005
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include "system/iconv.h"
25 #include "libcli/util/asn_1.h"
26 #include "libcli/ldap/ldap.h"
27 #include "lib/ldb/include/ldb.h"
29 struct control_handler {
31 BOOL (*decode)(void *mem_ctx, DATA_BLOB in, void **out);
32 BOOL (*encode)(void *mem_ctx, void *in, DATA_BLOB *out);
35 static BOOL decode_server_sort_response(void *mem_ctx, DATA_BLOB in, void **out)
38 struct asn1_data data;
39 struct ldb_sort_resp_control *lsrc;
41 if (!asn1_load(&data, in)) {
45 lsrc = talloc(mem_ctx, struct ldb_sort_resp_control);
50 if (!asn1_start_tag(&data, ASN1_SEQUENCE(0))) {
54 if (!asn1_read_enumerated(&data, &(lsrc->result))) {
58 lsrc->attr_desc = NULL;
59 if (asn1_peek_tag(&data, ASN1_OCTET_STRING)) {
60 if (!asn1_read_OctetString(&data, &attr)) {
63 lsrc->attr_desc = talloc_strndup(lsrc, attr.data, attr.length);
64 if (!lsrc->attr_desc) {
69 if (!asn1_end_tag(&data)) {
78 static BOOL decode_server_sort_request(void *mem_ctx, DATA_BLOB in, void **out)
82 struct asn1_data data;
83 struct ldb_server_sort_control **lssc;
86 if (!asn1_load(&data, in)) {
90 if (!asn1_start_tag(&data, ASN1_SEQUENCE(0))) {
96 for (num = 0; asn1_peek_tag(&data, ASN1_SEQUENCE(0)); num++) {
97 lssc = talloc_realloc(mem_ctx, lssc, struct ldb_server_sort_control *, num + 2);
101 lssc[num] = talloc(lssc, struct ldb_server_sort_control);
106 if (!asn1_start_tag(&data, ASN1_SEQUENCE(0))) {
110 if (!asn1_read_OctetString(&data, &attr)) {
114 lssc[num]->attributeName = talloc_strndup(lssc[num], attr.data, attr.length);
115 if (!lssc [num]->attributeName) {
119 if (asn1_peek_tag(&data, ASN1_OCTET_STRING)) {
120 if (!asn1_read_OctetString(&data, &rule)) {
123 lssc[num]->orderingRule = talloc_strndup(lssc[num], rule.data, rule.length);
124 if (!lssc[num]->orderingRule) {
129 if (asn1_peek_tag(&data, ASN1_BOOLEAN)) {
130 if (!asn1_read_BOOLEAN(&data, &(lssc[num]->reverse))) {
135 if (!asn1_end_tag(&data)) {
142 if (!asn1_end_tag(&data)) {
151 static BOOL decode_extended_dn_request(void *mem_ctx, DATA_BLOB in, void **out)
153 struct asn1_data data;
154 struct ldb_extended_dn_control *ledc;
156 if (!asn1_load(&data, in)) {
160 ledc = talloc(mem_ctx, struct ldb_extended_dn_control);
165 if (!asn1_start_tag(&data, ASN1_SEQUENCE(0))) {
169 if (!asn1_read_Integer(&data, &(ledc->type))) {
173 if (!asn1_end_tag(&data)) {
182 static BOOL decode_paged_results_request(void *mem_ctx, DATA_BLOB in, void **out)
185 struct asn1_data data;
186 struct ldb_paged_control *lprc;
188 if (!asn1_load(&data, in)) {
192 lprc = talloc(mem_ctx, struct ldb_paged_control);
197 if (!asn1_start_tag(&data, ASN1_SEQUENCE(0))) {
201 if (!asn1_read_Integer(&data, &(lprc->size))) {
205 if (!asn1_read_OctetString(&data, &cookie)) {
208 lprc->cookie_len = cookie.length;
209 if (lprc->cookie_len) {
210 lprc->cookie = talloc_memdup(lprc, cookie.data, cookie.length);
212 if (!(lprc->cookie)) {
219 if (!asn1_end_tag(&data)) {
228 /* seem that this controls has 2 forms one in case it is used with
229 * a Search Request and another when used ina Search Response
231 static BOOL decode_asq_control(void *mem_ctx, DATA_BLOB in, void **out)
233 DATA_BLOB source_attribute;
234 struct asn1_data data;
235 struct ldb_asq_control *lac;
237 if (!asn1_load(&data, in)) {
241 lac = talloc(mem_ctx, struct ldb_asq_control);
246 if (!asn1_start_tag(&data, ASN1_SEQUENCE(0))) {
250 if (asn1_peek_tag(&data, ASN1_OCTET_STRING)) {
252 if (!asn1_read_OctetString(&data, &source_attribute)) {
255 lac->src_attr_len = source_attribute.length;
256 if (lac->src_attr_len) {
257 lac->source_attribute = talloc_memdup(lac, source_attribute.data, source_attribute.length);
259 if (!(lac->source_attribute)) {
263 lac->source_attribute = NULL;
268 } else if (asn1_peek_tag(&data, ASN1_ENUMERATED)) {
270 if (!asn1_read_enumerated(&data, &(lac->result))) {
280 if (!asn1_end_tag(&data)) {
289 static BOOL encode_server_sort_response(void *mem_ctx, void *in, DATA_BLOB *out)
291 struct ldb_sort_resp_control *lsrc = talloc_get_type(in, struct ldb_sort_resp_control);
292 struct asn1_data data;
296 if (!asn1_push_tag(&data, ASN1_SEQUENCE(0))) {
300 if (!asn1_write_enumerated(&data, lsrc->result)) {
304 if (lsrc->attr_desc) {
305 if (!asn1_write_OctetString(&data, lsrc->attr_desc, strlen(lsrc->attr_desc))) {
310 if (!asn1_pop_tag(&data)) {
314 *out = data_blob_talloc(mem_ctx, data.data, data.length);
315 if (out->data == NULL) {
322 static BOOL encode_server_sort_request(void *mem_ctx, void *in, DATA_BLOB *out)
324 struct ldb_server_sort_control **lssc = talloc_get_type(in, struct ldb_server_sort_control *);
325 struct asn1_data data;
330 if (!asn1_push_tag(&data, ASN1_SEQUENCE(0))) {
334 for (num = 0; lssc[num]; num++) {
335 if (!asn1_push_tag(&data, ASN1_SEQUENCE(0))) {
339 if (!asn1_write_OctetString(&data, lssc[num]->attributeName, strlen(lssc[num]->attributeName))) {
343 if (lssc[num]->orderingRule) {
344 if (!asn1_write_OctetString(&data, lssc[num]->orderingRule, strlen(lssc[num]->orderingRule))) {
349 if (lssc[num]->reverse) {
350 if (!asn1_write_BOOLEAN(&data, lssc[num]->reverse)) {
355 if (!asn1_pop_tag(&data)) {
360 if (!asn1_pop_tag(&data)) {
364 *out = data_blob_talloc(mem_ctx, data.data, data.length);
365 if (out->data == NULL) {
372 static BOOL encode_extended_dn_request(void *mem_ctx, void *in, DATA_BLOB *out)
374 struct ldb_extended_dn_control *ledc = talloc_get_type(in, struct ldb_extended_dn_control);
375 struct asn1_data data;
379 if (!asn1_push_tag(&data, ASN1_SEQUENCE(0))) {
383 if (!asn1_write_Integer(&data, ledc->type)) {
387 if (!asn1_pop_tag(&data)) {
391 *out = data_blob_talloc(mem_ctx, data.data, data.length);
392 if (out->data == NULL) {
399 static BOOL encode_paged_results_request(void *mem_ctx, void *in, DATA_BLOB *out)
401 struct ldb_paged_control *lprc = talloc_get_type(in, struct ldb_paged_control);
402 struct asn1_data data;
406 if (!asn1_push_tag(&data, ASN1_SEQUENCE(0))) {
410 if (!asn1_write_Integer(&data, lprc->size)) {
414 if (!asn1_write_OctetString(&data, lprc->cookie, lprc->cookie_len)) {
418 if (!asn1_pop_tag(&data)) {
422 *out = data_blob_talloc(mem_ctx, data.data, data.length);
423 if (out->data == NULL) {
430 /* seem that this controls has 2 forms one in case it is used with
431 * a Search Request and another when used ina Search Response
433 static BOOL encode_asq_control(void *mem_ctx, void *in, DATA_BLOB *out)
435 struct ldb_asq_control *lac = talloc_get_type(in, struct ldb_asq_control);
436 struct asn1_data data;
440 if (!asn1_push_tag(&data, ASN1_SEQUENCE(0))) {
446 if (!asn1_write_OctetString(&data, lac->source_attribute, lac->src_attr_len)) {
450 if (!asn1_write_enumerated(&data, lac->result)) {
455 if (!asn1_pop_tag(&data)) {
459 *out = data_blob_talloc(mem_ctx, data.data, data.length);
460 if (out->data == NULL) {
467 struct control_handler ldap_known_controls[] = {
468 { "1.2.840.113556.1.4.319", decode_paged_results_request, encode_paged_results_request },
469 { "1.2.840.113556.1.4.529", decode_extended_dn_request, encode_extended_dn_request },
470 { "1.2.840.113556.1.4.473", decode_server_sort_request, encode_server_sort_request },
471 { "1.2.840.113556.1.4.474", decode_server_sort_response, encode_server_sort_response },
472 { "1.2.840.113556.1.4.1504", decode_asq_control, encode_asq_control },
476 BOOL ldap_decode_control(void *mem_ctx, struct asn1_data *data, struct ldap_Control *ctrl)
482 if (!asn1_start_tag(data, ASN1_SEQUENCE(0))) {
486 if (!asn1_read_OctetString(data, &oid)) {
489 ctrl->oid = talloc_strndup(mem_ctx, (char *)oid.data, oid.length);
494 if (asn1_peek_tag(data, ASN1_BOOLEAN)) {
495 if (!asn1_read_BOOLEAN(data, &(ctrl->critical))) {
499 ctrl->critical = False;
504 for (i = 0; ldap_known_controls[i].oid != NULL; i++) {
505 if (strcmp(ldap_known_controls[i].oid, ctrl->oid) == 0) {
507 if (!asn1_read_OctetString(data, &value)) {
510 if (!ldap_known_controls[i].decode(mem_ctx, value, &(ctrl->value))) {
516 if (ldap_known_controls[i].oid == NULL) {
520 if (!asn1_end_tag(data)) {
527 BOOL ldap_encode_control(void *mem_ctx, struct asn1_data *data, struct ldap_Control *ctrl)
532 if (!asn1_push_tag(data, ASN1_SEQUENCE(0))) {
536 if (!asn1_write_OctetString(data, ctrl->oid, strlen(ctrl->oid))) {
540 if (ctrl->critical) {
541 if (!asn1_write_BOOLEAN(data, ctrl->critical)) {
546 for (i = 0; ldap_known_controls[i].oid != NULL; i++) {
547 if (strcmp(ldap_known_controls[i].oid, ctrl->oid) == 0) {
548 if (!ldap_known_controls[i].encode(mem_ctx, ctrl->value, &value)) {
554 if (ldap_known_controls[i].oid == NULL) {
558 if (value.length != 0) {
559 if (!asn1_write_OctetString(data, value.data, value.length)) {
564 if (!asn1_pop_tag(data)) {