2 Unix SMB/CIFS implementation.
3 Samba utility functions
5 Copyright (C) Andrew Tridgell 2009
6 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2009
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #include "dsdb/samdb/samdb.h"
24 #include "lib/ldb/include/ldb_module.h"
26 enum dsdb_dn_format dsdb_dn_oid_to_format(const char *oid)
28 if (strcmp(oid, LDB_SYNTAX_DN) == 0) {
29 return DSDB_NORMAL_DN;
30 } else if (strcmp(oid, DSDB_SYNTAX_BINARY_DN) == 0) {
31 return DSDB_BINARY_DN;
32 } else if (strcmp(oid, DSDB_SYNTAX_STRING_DN) == 0) {
33 return DSDB_STRING_DN;
34 } else if (strcmp(oid, DSDB_SYNTAX_OR_NAME) == 0) {
35 return DSDB_NORMAL_DN;
37 return DSDB_INVALID_DN;
41 static struct dsdb_dn *dsdb_dn_construct_internal(TALLOC_CTX *mem_ctx,
44 enum dsdb_dn_format dn_format,
47 struct dsdb_dn *dsdb_dn = talloc(mem_ctx, struct dsdb_dn);
51 dsdb_dn->dn = talloc_steal(dsdb_dn, dn);
52 dsdb_dn->extra_part = extra_part;
53 dsdb_dn->dn_format = dn_format;
54 /* Look to see if this attributeSyntax is a DN */
55 if (dsdb_dn->dn_format == DSDB_INVALID_DN) {
61 talloc_steal(dsdb_dn, extra_part.data);
65 struct dsdb_dn *dsdb_dn_construct(TALLOC_CTX *mem_ctx, struct ldb_dn *dn, DATA_BLOB extra_part,
68 enum dsdb_dn_format dn_format = dsdb_dn_oid_to_format(oid);
69 return dsdb_dn_construct_internal(mem_ctx, dn, extra_part, dn_format, oid);
72 struct dsdb_dn *dsdb_dn_parse(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
73 const struct ldb_val *dn_blob, const char *dn_oid)
75 struct dsdb_dn *dsdb_dn;
87 enum dsdb_dn_format dn_format = dsdb_dn_oid_to_format(dn_oid);
93 dn = ldb_dn_from_ldb_val(mem_ctx, ldb, dn_blob);
94 if (!dn || !ldb_dn_validate(dn)) {
98 return dsdb_dn_construct_internal(mem_ctx, dn, data_blob_null, dn_format, dn_oid);
101 if (dn_blob->length < 2 || dn_blob->data[0] != 'B' || dn_blob->data[1] != ':') {
106 if (dn_blob->length < 2 || dn_blob->data[0] != 'S' || dn_blob->data[1] != ':') {
114 if (dn_blob && dn_blob->data
115 && (strlen((const char*)dn_blob->data) != dn_blob->length)) {
116 /* The RDN must not contain a character with value 0x0 */
120 if (!dn_blob->data || dn_blob->length == 0) {
124 tmp_ctx = talloc_new(mem_ctx);
125 if (tmp_ctx == NULL) {
129 data = (const char *)dn_blob->data;
131 len = dn_blob->length - 2;
132 p1 = talloc_strndup(tmp_ctx, (const char *)dn_blob->data + 2, len);
138 blen = strtoul(p1, &p2, 10);
140 DEBUG(10, (__location__ ": failed\n"));
144 DEBUG(10, (__location__ ": failed\n"));
148 DEBUG(10, (__location__ ": failed\n"));
151 len -= PTR_DIFF(p2,p1);//???
156 DEBUG(10, (__location__ ": blen=%u len=%u\n", (unsigned)blen, (unsigned)len));
162 DEBUG(10, (__location__ ": %s", p2));
170 if ((blen % 2 != 0)) {
171 DEBUG(10, (__location__ ": blen=%u - not an even number\n", (unsigned)blen));
176 bval.length = (blen/2)+1;
177 bval.data = talloc_size(tmp_ctx, bval.length);
178 if (bval.data == NULL) {
179 DEBUG(10, (__location__ ": err\n"));
182 bval.data[bval.length-1] = 0;
184 bval.length = strhex_to_str((char *)bval.data, bval.length,
186 if (bval.length != (blen / 2)) {
187 DEBUG(10, (__location__ ": non hexidecimal characters found in binary prefix\n"));
191 bval = data_blob_null;
196 bval = data_blob(p1, blen);
204 dval.data = (uint8_t *)dn_str;
205 dval.length = strlen(dn_str);
207 dn = ldb_dn_from_ldb_val(tmp_ctx, ldb, &dval);
208 if (!dn || !ldb_dn_validate(dn)) {
209 DEBUG(10, (__location__ ": err\n"));
213 dsdb_dn = dsdb_dn_construct(mem_ctx, dn, bval, dn_oid);
218 talloc_free(tmp_ctx);
223 static char *dsdb_dn_get_with_postfix(TALLOC_CTX *mem_ctx,
224 struct dsdb_dn *dsdb_dn,
231 switch (dsdb_dn->dn_format) {
234 return talloc_strdup(mem_ctx, postfix);
238 char *hexstr = data_blob_hex_string_upper(mem_ctx, &dsdb_dn->extra_part);
240 char *p = talloc_asprintf(mem_ctx, "B:%u:%s:%s", (unsigned)(dsdb_dn->extra_part.length*2), hexstr,
247 return talloc_asprintf(mem_ctx, "S:%u:%*.*s:%s",
248 (unsigned)(dsdb_dn->extra_part.length),
249 (int)(dsdb_dn->extra_part.length),
250 (int)(dsdb_dn->extra_part.length),
251 (const char *)dsdb_dn->extra_part.data,
259 char *dsdb_dn_get_linearized(TALLOC_CTX *mem_ctx,
260 struct dsdb_dn *dsdb_dn)
262 const char *postfix = ldb_dn_get_linearized(dsdb_dn->dn);
263 return dsdb_dn_get_with_postfix(mem_ctx, dsdb_dn, postfix);
266 char *dsdb_dn_get_casefold(TALLOC_CTX *mem_ctx,
267 struct dsdb_dn *dsdb_dn)
269 const char *postfix = ldb_dn_get_casefold(dsdb_dn->dn);
270 return dsdb_dn_get_with_postfix(mem_ctx, dsdb_dn, postfix);
273 char *dsdb_dn_get_extended_linearized(TALLOC_CTX *mem_ctx,
274 struct dsdb_dn *dsdb_dn,
277 char *postfix = ldb_dn_get_extended_linearized(mem_ctx, dsdb_dn->dn, mode);
278 char *ret = dsdb_dn_get_with_postfix(mem_ctx, dsdb_dn, postfix);
279 talloc_free(postfix);
283 int dsdb_dn_binary_canonicalise(struct ldb_context *ldb, void *mem_ctx,
284 const struct ldb_val *in, struct ldb_val *out)
286 struct dsdb_dn *dsdb_dn = dsdb_dn_parse(mem_ctx, ldb, in, DSDB_SYNTAX_BINARY_DN);
291 *out = data_blob_string_const(dsdb_dn_get_casefold(mem_ctx, dsdb_dn));
292 talloc_free(dsdb_dn);
299 int dsdb_dn_binary_comparison(struct ldb_context *ldb, void *mem_ctx,
300 const struct ldb_val *v1,
301 const struct ldb_val *v2)
303 return ldb_any_comparison(ldb, mem_ctx, dsdb_dn_binary_canonicalise, v1, v2);
306 int dsdb_dn_string_canonicalise(struct ldb_context *ldb, void *mem_ctx,
307 const struct ldb_val *in, struct ldb_val *out)
309 struct dsdb_dn *dsdb_dn = dsdb_dn_parse(mem_ctx, ldb, in, DSDB_SYNTAX_STRING_DN);
314 *out = data_blob_string_const(dsdb_dn_get_casefold(mem_ctx, dsdb_dn));
315 talloc_free(dsdb_dn);
322 int dsdb_dn_string_comparison(struct ldb_context *ldb, void *mem_ctx,
323 const struct ldb_val *v1,
324 const struct ldb_val *v2)
326 return ldb_any_comparison(ldb, mem_ctx, dsdb_dn_string_canonicalise, v1, v2);
331 convert a dsdb_dn to a linked attribute data blob
333 WERROR dsdb_dn_la_to_blob(struct ldb_context *sam_ctx,
334 const struct dsdb_attribute *schema_attrib,
335 const struct dsdb_schema *schema,
337 struct dsdb_dn *dsdb_dn, DATA_BLOB **blob)
341 struct ldb_message_element val_el;
342 struct drsuapi_DsReplicaAttribute drs;
344 /* we need a message_element with just one value in it */
345 v = data_blob_string_const(dsdb_dn_get_extended_linearized(mem_ctx, dsdb_dn, 1));
347 val_el.name = schema_attrib->lDAPDisplayName;
349 val_el.num_values = 1;
351 werr = schema_attrib->syntax->ldb_to_drsuapi(sam_ctx, schema, schema_attrib, &val_el, mem_ctx, &drs);
352 W_ERROR_NOT_OK_RETURN(werr);
354 if (drs.value_ctr.num_values != 1) {
355 DEBUG(1,(__location__ ": Failed to build DRS blob for linked attribute %s\n",
356 schema_attrib->lDAPDisplayName));
357 return WERR_DS_DRA_INTERNAL_ERROR;
360 *blob = drs.value_ctr.values[0].blob;
365 convert a data blob to a dsdb_dn
367 WERROR dsdb_dn_la_from_blob(struct ldb_context *sam_ctx,
368 const struct dsdb_attribute *schema_attrib,
369 const struct dsdb_schema *schema,
372 struct dsdb_dn **dsdb_dn)
375 struct ldb_message_element new_el;
376 struct drsuapi_DsReplicaAttribute drs;
377 struct drsuapi_DsAttributeValue val;
379 drs.value_ctr.num_values = 1;
380 drs.value_ctr.values = &val;
383 werr = schema_attrib->syntax->drsuapi_to_ldb(sam_ctx, schema, schema_attrib, &drs, mem_ctx, &new_el);
384 W_ERROR_NOT_OK_RETURN(werr);
386 if (new_el.num_values != 1) {
387 return WERR_INTERNAL_ERROR;
390 *dsdb_dn = dsdb_dn_parse(mem_ctx, sam_ctx, &new_el.values[0], schema_attrib->syntax->ldap_oid);
392 return WERR_INTERNAL_ERROR;