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
);
95 dn
= ldb_dn_from_ldb_val(mem_ctx
, ldb
, dn_blob
);
96 if (!dn
|| !ldb_dn_validate(dn
)) {
100 return dsdb_dn_construct_internal(mem_ctx
, dn
, data_blob_null
, dn_format
, dn_oid
);
103 if (dn_blob
->length
< 2 || dn_blob
->data
[0] != 'B' || dn_blob
->data
[1] != ':') {
108 if (dn_blob
->length
< 2 || dn_blob
->data
[0] != 'S' || dn_blob
->data
[1] != ':') {
116 if (dn_blob
&& dn_blob
->data
117 && (strlen((const char*)dn_blob
->data
) != dn_blob
->length
)) {
118 /* The RDN must not contain a character with value 0x0 */
122 if (!dn_blob
->data
|| dn_blob
->length
== 0) {
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
);