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 <ldb_module.h>
25 #include "librpc/ndr/libndr.h"
26 #include "libcli/security/dom_sid.h"
28 enum dsdb_dn_format dsdb_dn_oid_to_format(const char *oid)
30 if (strcmp(oid, LDB_SYNTAX_DN) == 0) {
31 return DSDB_NORMAL_DN;
32 } else if (strcmp(oid, DSDB_SYNTAX_BINARY_DN) == 0) {
33 return DSDB_BINARY_DN;
34 } else if (strcmp(oid, DSDB_SYNTAX_STRING_DN) == 0) {
35 return DSDB_STRING_DN;
36 } else if (strcmp(oid, DSDB_SYNTAX_OR_NAME) == 0) {
37 return DSDB_NORMAL_DN;
39 return DSDB_INVALID_DN;
43 static struct dsdb_dn *dsdb_dn_construct_internal(TALLOC_CTX *mem_ctx,
46 enum dsdb_dn_format dn_format,
49 struct dsdb_dn *dsdb_dn = talloc(mem_ctx, struct dsdb_dn);
53 dsdb_dn->dn = talloc_steal(dsdb_dn, dn);
54 dsdb_dn->extra_part = extra_part;
55 dsdb_dn->dn_format = dn_format;
56 /* Look to see if this attributeSyntax is a DN */
57 if (dsdb_dn->dn_format == DSDB_INVALID_DN) {
63 talloc_steal(dsdb_dn, extra_part.data);
67 struct dsdb_dn *dsdb_dn_construct(TALLOC_CTX *mem_ctx, struct ldb_dn *dn, DATA_BLOB extra_part,
70 enum dsdb_dn_format dn_format = dsdb_dn_oid_to_format(oid);
71 return dsdb_dn_construct_internal(mem_ctx, dn, extra_part, dn_format, oid);
74 struct dsdb_dn *dsdb_dn_parse(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
75 const struct ldb_val *dn_blob, const char *dn_oid)
77 struct dsdb_dn *dsdb_dn;
89 enum dsdb_dn_format dn_format = dsdb_dn_oid_to_format(dn_oid);
91 if (dn_blob == NULL || dn_blob->data == NULL || dn_blob->length == 0) {
100 dn = ldb_dn_from_ldb_val(mem_ctx, ldb, dn_blob);
101 if (!dn || !ldb_dn_validate(dn)) {
105 return dsdb_dn_construct_internal(mem_ctx, dn, data_blob_null, dn_format, dn_oid);
108 if (dn_blob->length < 2 || dn_blob->data[0] != 'B' || dn_blob->data[1] != ':') {
113 if (dn_blob->length < 2 || dn_blob->data[0] != 'S' || dn_blob->data[1] != ':') {
121 if (strlen((const char*)dn_blob->data) != dn_blob->length) {
122 /* The RDN must not contain a character with value 0x0 */
126 tmp_ctx = talloc_new(mem_ctx);
127 if (tmp_ctx == NULL) {
131 data = (const char *)dn_blob->data;
133 len = dn_blob->length - 2;
134 p1 = talloc_strndup(tmp_ctx, (const char *)dn_blob->data + 2, len);
140 blen = strtoul(p1, &p2, 10);
142 DEBUG(10, (__location__ ": failed\n"));
146 DEBUG(10, (__location__ ": failed\n"));
150 DEBUG(10, (__location__ ": failed\n"));
153 len -= PTR_DIFF(p2,p1);//???
158 DEBUG(10, (__location__ ": blen=%u len=%u\n", (unsigned)blen, (unsigned)len));
164 DEBUG(10, (__location__ ": %s", p2));
172 if ((blen % 2 != 0)) {
173 DEBUG(10, (__location__ ": blen=%u - not an even number\n", (unsigned)blen));
178 bval.length = (blen/2)+1;
179 bval.data = talloc_size(tmp_ctx, bval.length);
180 if (bval.data == NULL) {
181 DEBUG(10, (__location__ ": err\n"));
184 bval.data[bval.length-1] = 0;
186 bval.length = strhex_to_str((char *)bval.data, bval.length,
188 if (bval.length != (blen / 2)) {
189 DEBUG(10, (__location__ ": non hexidecimal characters found in binary prefix\n"));
193 bval = data_blob_null;
198 bval = data_blob(p1, blen);
206 dval.data = (uint8_t *)dn_str;
207 dval.length = strlen(dn_str);
209 dn = ldb_dn_from_ldb_val(tmp_ctx, ldb, &dval);
210 if (!dn || !ldb_dn_validate(dn)) {
211 DEBUG(10, (__location__ ": err\n"));
215 dsdb_dn = dsdb_dn_construct(mem_ctx, dn, bval, dn_oid);
220 talloc_free(tmp_ctx);
225 static char *dsdb_dn_get_with_postfix(TALLOC_CTX *mem_ctx,
226 struct dsdb_dn *dsdb_dn,
233 switch (dsdb_dn->dn_format) {
236 return talloc_strdup(mem_ctx, postfix);
240 char *hexstr = data_blob_hex_string_upper(mem_ctx, &dsdb_dn->extra_part);
242 char *p = talloc_asprintf(mem_ctx, "B:%u:%s:%s", (unsigned)(dsdb_dn->extra_part.length*2), hexstr,
249 return talloc_asprintf(mem_ctx, "S:%u:%*.*s:%s",
250 (unsigned)(dsdb_dn->extra_part.length),
251 (int)(dsdb_dn->extra_part.length),
252 (int)(dsdb_dn->extra_part.length),
253 (const char *)dsdb_dn->extra_part.data,
261 char *dsdb_dn_get_linearized(TALLOC_CTX *mem_ctx,
262 struct dsdb_dn *dsdb_dn)
264 const char *postfix = ldb_dn_get_linearized(dsdb_dn->dn);
265 return dsdb_dn_get_with_postfix(mem_ctx, dsdb_dn, postfix);
268 char *dsdb_dn_get_casefold(TALLOC_CTX *mem_ctx,
269 struct dsdb_dn *dsdb_dn)
271 const char *postfix = ldb_dn_get_casefold(dsdb_dn->dn);
272 return dsdb_dn_get_with_postfix(mem_ctx, dsdb_dn, postfix);
275 char *dsdb_dn_get_extended_linearized(TALLOC_CTX *mem_ctx,
276 struct dsdb_dn *dsdb_dn,
279 char *postfix = ldb_dn_get_extended_linearized(mem_ctx, dsdb_dn->dn, mode);
280 char *ret = dsdb_dn_get_with_postfix(mem_ctx, dsdb_dn, postfix);
281 talloc_free(postfix);
285 int dsdb_dn_binary_canonicalise(struct ldb_context *ldb, void *mem_ctx,
286 const struct ldb_val *in, struct ldb_val *out)
288 struct dsdb_dn *dsdb_dn = dsdb_dn_parse(mem_ctx, ldb, in, DSDB_SYNTAX_BINARY_DN);
293 *out = data_blob_string_const(dsdb_dn_get_casefold(mem_ctx, dsdb_dn));
294 talloc_free(dsdb_dn);
301 int dsdb_dn_binary_comparison(struct ldb_context *ldb, void *mem_ctx,
302 const struct ldb_val *v1,
303 const struct ldb_val *v2)
305 return ldb_any_comparison(ldb, mem_ctx, dsdb_dn_binary_canonicalise, v1, v2);
308 int dsdb_dn_string_canonicalise(struct ldb_context *ldb, void *mem_ctx,
309 const struct ldb_val *in, struct ldb_val *out)
311 struct dsdb_dn *dsdb_dn = dsdb_dn_parse(mem_ctx, ldb, in, DSDB_SYNTAX_STRING_DN);
316 *out = data_blob_string_const(dsdb_dn_get_casefold(mem_ctx, dsdb_dn));
317 talloc_free(dsdb_dn);
324 int dsdb_dn_string_comparison(struct ldb_context *ldb, void *mem_ctx,
325 const struct ldb_val *v1,
326 const struct ldb_val *v2)
328 return ldb_any_comparison(ldb, mem_ctx, dsdb_dn_string_canonicalise, v1, v2);
332 format a drsuapi_DsReplicaObjectIdentifier naming context as a string
334 char *drs_ObjectIdentifier_to_string(TALLOC_CTX *mem_ctx,
335 struct drsuapi_DsReplicaObjectIdentifier *nc)
338 TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
339 if (!GUID_all_zero(&nc->guid)) {
340 char *guid = GUID_string(tmp_ctx, &nc->guid);
342 ret = talloc_asprintf_append(ret, "<GUID=%s>;", guid);
345 if (nc->__ndr_size_sid != 0 && nc->sid.sid_rev_num != 0) {
346 const char *sid = dom_sid_string(tmp_ctx, &nc->sid);
348 ret = talloc_asprintf_append(ret, "<SID=%s>;", sid);
351 if (nc->__ndr_size_dn != 0 && nc->dn) {
352 ret = talloc_asprintf_append(ret, "%s", nc->dn);
354 talloc_free(tmp_ctx);
355 talloc_steal(mem_ctx, ret);
359 struct ldb_dn *drs_ObjectIdentifier_to_dn(TALLOC_CTX *mem_ctx,
360 struct ldb_context *ldb,
361 struct drsuapi_DsReplicaObjectIdentifier *nc)
363 char *dn_string = drs_ObjectIdentifier_to_string(mem_ctx, nc);
364 struct ldb_dn *new_dn;
365 new_dn = ldb_dn_new(mem_ctx, ldb, dn_string);
366 talloc_free(dn_string);