4 Copyright (C) Simo Sorce 2004
5 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
6 Copyright (C) Andrew Tridgell 2004
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 2 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, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 * Component: ldb password_hash module
28 * Description: correctly update hash values based on changes to sambaPassword and friends
30 * Author: Andrew Bartlett
34 #include "libcli/ldap/ldap.h"
35 #include "ldb/include/ldb_errors.h"
36 #include "ldb/include/ldb_private.h"
37 #include "librpc/gen_ndr/ndr_misc.h"
38 #include "librpc/gen_ndr/ndr_samr.h"
39 #include "libcli/auth/proto.h"
40 #include "system/kerberos.h"
41 #include "auth/kerberos/kerberos.h"
42 #include "system/time.h"
43 #include "dsdb/samdb/samdb.h"
47 /* If we have decided there is reason to work on this request, then
48 * setup all the password hash types correctly.
50 * If the administrator doesn't want the sambaPassword stored (set in the
51 * domain and per-account policies) then we must strip that out before
52 * we do the first operation.
54 * Once this is done (which could update anything at all), we
55 * calculate the password hashes.
57 * This function must not only update the ntPwdHash, lmPwdHash and
58 * krb5Key fields, it must also atomicly increment the
59 * msDS-KeyVersionNumber. We should be in a transaction, so all this
60 * should be quite safe...
62 * Finally, if the administrator has requested that a password history
63 * be maintained, then this should also be written out.
68 static int password_hash_handle(struct ldb_module *module, struct ldb_request *req,
69 const struct ldb_message *msg)
71 int ret, old_ret = -1;
72 uint_t pwdProperties, pwdHistoryLength;
73 uint_t userAccountControl;
74 const char *dnsDomain, *realm;
75 const char *sambaPassword = NULL;
76 struct samr_Password *sambaLMPwdHistory, *sambaNTPwdHistory;
77 struct samr_Password *lmPwdHash, *ntPwdHash;
78 struct samr_Password *lmOldHash = NULL, *ntOldHash = NULL;
79 struct samr_Password *new_sambaLMPwdHistory, *new_sambaNTPwdHistory;
80 struct samr_Password local_lmNewHash, local_ntNewHash;
81 int sambaLMPwdHistory_len, sambaNTPwdHistory_len;
83 struct dom_sid *domain_sid;
84 time_t now = time(NULL);
87 krb5_error_code krb5_ret;
89 struct smb_krb5_context *smb_krb5_context;
91 struct ldb_message_element *attribute;
92 struct ldb_dn *dn = msg->dn;
93 struct ldb_message *msg2;
95 struct ldb_request *search_request = NULL;
96 struct ldb_request *modify_request;
97 struct ldb_request *modified_orig_request;
98 struct ldb_result *res, *dom_res, *old_res;
100 struct ldb_message_element *objectclasses;
101 struct ldb_val computer_val;
102 struct ldb_val person_val;
105 struct ldb_message *modify_msg;
107 const char *domain_expression;
108 const char *old_user_attrs[] = { "lmPwdHash", "ntPwdHash", NULL };
109 const char *user_attrs[] = { "userAccountControl", "sambaLMPwdHistory",
112 "objectSid", "msDS-KeyVersionNumber",
113 "objectClass", "userPrincipalName",
116 const char * const domain_attrs[] = { "pwdProperties", "pwdHistoryLength",
121 /* Do the original action */
123 /* If no part of this touches the sambaPassword, then we don't
124 * need to make any changes. For password changes/set there should
125 * be a 'delete' or a 'modify' on this attribute. */
126 if ((attribute = ldb_msg_find_element(msg, "sambaPassword")) == NULL ) {
127 return ldb_next_request(module, req);
130 mem_ctx = talloc_new(module);
132 return LDB_ERR_OPERATIONS_ERROR;
135 if (req->operation == LDB_REQ_MODIFY) {
136 search_request = talloc(mem_ctx, struct ldb_request);
137 if (!search_request) {
138 talloc_free(mem_ctx);
139 return LDB_ERR_OPERATIONS_ERROR;
142 /* Look up the old ntPwdHash and lmPwdHash values, so
143 * we can later place these into the password
146 search_request->operation = LDB_REQ_SEARCH;
147 search_request->op.search.base = dn;
148 search_request->op.search.scope = LDB_SCOPE_BASE;
149 search_request->op.search.tree = ldb_parse_tree(module->ldb, NULL);
150 search_request->op.search.attrs = old_user_attrs;
151 search_request->controls = NULL;
153 old_ret = ldb_next_request(module, search_request);
156 /* we can't change things untill we copy it */
157 msg2 = ldb_msg_copy_shallow(mem_ctx, msg);
159 /* look again, this time at the copied attribute */
160 if (!msg2 || (attribute = ldb_msg_find_element(msg2, "sambaPassword")) == NULL ) {
161 talloc_free(mem_ctx);
162 /* Gah? where did it go? Oh well... */
163 return LDB_ERR_OPERATIONS_ERROR;
166 /* Wipe out the sambaPassword attribute set, we will handle it in
167 * the second modify. We might not want it written to disk */
169 if (req->operation == LDB_REQ_ADD) {
170 if (attribute->num_values > 1) {
171 ldb_set_errstring(module->ldb,
172 talloc_asprintf(mem_ctx, "sambaPassword_handle: "
173 "attempted set of multiple sambaPassword attributes on %s rejected",
174 ldb_dn_linearize(mem_ctx, dn)));
175 talloc_free(mem_ctx);
176 return LDB_ERR_CONSTRAINT_VIOLATION;
179 if (attribute->num_values == 1) {
180 sambaPassword = (const char *)attribute->values[0].data;
181 ldb_msg_remove_attr(msg2, "sambaPassword");
183 } else if (((attribute->flags & LDB_FLAG_MOD_MASK) == LDB_FLAG_MOD_ADD)
184 || ((attribute->flags & LDB_FLAG_MOD_MASK) == LDB_FLAG_MOD_REPLACE)) {
185 if (attribute->num_values > 1) {
186 ldb_set_errstring(module->ldb,
187 talloc_asprintf(mem_ctx, "sambaPassword_handle: "
188 "attempted set of multiple sambaPassword attributes on %s rejected",
189 ldb_dn_linearize(mem_ctx, dn)));
190 talloc_free(mem_ctx);
191 return LDB_ERR_CONSTRAINT_VIOLATION;
194 if (attribute->num_values == 1) {
195 sambaPassword = (const char *)attribute->values[0].data;
196 ldb_msg_remove_attr(msg2, "sambaPassword");
200 modified_orig_request = talloc(mem_ctx, struct ldb_request);
201 if (!modified_orig_request) {
202 talloc_free(mem_ctx);
203 return LDB_ERR_OPERATIONS_ERROR;
206 *modified_orig_request = *req;
207 switch (modified_orig_request->operation) {
209 modified_orig_request->op.add.message = msg2;
212 modified_orig_request->op.mod.message = msg2;
216 /* Send the (modified) request of the original caller down to the database */
217 ret = ldb_next_request(module, modified_orig_request);
219 talloc_free(mem_ctx);
223 /* While we do the search first (for the old password hashes),
224 * we don't want to override any error that the modify may
225 * have returned. Now check the error */
226 if (req->operation == LDB_REQ_MODIFY) {
228 talloc_free(mem_ctx);
232 /* Find out the old passwords details of the user */
233 old_res = search_request->op.search.res;
234 talloc_steal(mem_ctx, old_res);
235 talloc_free(search_request);
237 if (old_res->count != 1) {
238 ldb_set_errstring(module->ldb,
239 talloc_asprintf(mem_ctx, "password_hash_handle: "
240 "(pre) search for %s found %d != 1 objects, for entry we just modified",
241 ldb_dn_linearize(mem_ctx, dn),
243 /* What happend? The above add/modify worked... */
244 talloc_free(mem_ctx);
245 return LDB_ERR_NO_SUCH_OBJECT;
248 lmOldHash = samdb_result_hash(mem_ctx, old_res->msgs[0], "lmPwdHash");
249 ntOldHash = samdb_result_hash(mem_ctx, old_res->msgs[0], "ntPwdHash");
252 /* Start finding out details we need for the second modify.
253 * We do this after the first add/modify because other modules
254 * will have filled in the templates, and we may have had
255 * things like the username (affecting the salt) changed along
256 * with the password. */
258 /* Now find out what is on the entry after the above add/modify */
259 search_request = talloc(mem_ctx, struct ldb_request);
260 if (!search_request) {
261 talloc_free(mem_ctx);
262 return LDB_ERR_OPERATIONS_ERROR;
265 search_request->operation = LDB_REQ_SEARCH;
266 search_request->op.search.base = dn;
267 search_request->op.search.scope = LDB_SCOPE_BASE;
268 search_request->op.search.tree = ldb_parse_tree(module->ldb, NULL);
269 search_request->op.search.attrs = user_attrs;
270 search_request->controls = NULL;
272 ret = ldb_next_request(module, search_request);
274 talloc_free(mem_ctx);
278 /* Find out the full details of the user */
279 res = search_request->op.search.res;
280 talloc_steal(mem_ctx, res);
281 talloc_free(search_request);
283 if (res->count != 1) {
284 ldb_set_errstring(module->ldb,
285 talloc_asprintf(mem_ctx, "password_hash_handle: "
286 "search for %s found %d != 1 objects, for entry we just added/modified",
287 ldb_dn_linearize(mem_ctx, dn),
289 /* What happend? The above add/modify worked... */
290 talloc_free(mem_ctx);
291 return LDB_ERR_NO_SUCH_OBJECT;
294 userAccountControl = samdb_result_uint(res->msgs[0], "userAccountControl", 0);
295 sambaLMPwdHistory_len = samdb_result_hashes(mem_ctx, res->msgs[0],
296 "sambaLMPwdHistory", &sambaLMPwdHistory);
297 sambaNTPwdHistory_len = samdb_result_hashes(mem_ctx, res->msgs[0],
298 "sambaNTPwdHistory", &sambaNTPwdHistory);
299 ntPwdHash = samdb_result_hash(mem_ctx, res->msgs[0], "ntPwdHash");
300 kvno = samdb_result_uint(res->msgs[0], "msDS-KeyVersionNumber", 0);
302 domain_sid = samdb_result_sid_prefix(mem_ctx, res->msgs[0], "objectSid");
305 objectclasses = ldb_msg_find_element(res->msgs[0], "objectClass");
306 person_val = data_blob_string_const("person");
308 if (!objectclasses || !ldb_msg_find_val(objectclasses, &person_val)) {
309 /* Not a 'person', so the rest of this doesn't make
310 * sense. How we got a sambaPassword this far I don't
312 ldb_set_errstring(module->ldb,
313 talloc_asprintf(mem_ctx, "password_hash_handle: "
314 "attempted set of sambaPassword on non-'person' object %s rejected",
315 ldb_dn_linearize(mem_ctx, dn)));
316 talloc_free(mem_ctx);
317 return LDB_ERR_CONSTRAINT_VIOLATION;
320 computer_val = data_blob_string_const("computer");
322 if (ldb_msg_find_val(objectclasses, &computer_val)) {
328 domain_expression = talloc_asprintf(mem_ctx, "(&(objectSid=%s)(objectClass=domain))",
329 ldap_encode_ndr_dom_sid(mem_ctx, domain_sid));
331 /* Find the user's domain, then find out the domain password
333 ret = ldb_search(module->ldb, NULL, LDB_SCOPE_SUBTREE, domain_expression,
334 domain_attrs, &dom_res);
336 talloc_free(mem_ctx);
340 if (dom_res->count != 1) {
341 /* What happend? The user we are modifying must be odd... */
342 ldb_set_errstring(module->ldb,
343 talloc_asprintf(mem_ctx, "password_hash_handle: "
344 "search for domain %s found %d != 1 objects",
345 dom_sid_string(mem_ctx, domain_sid),
347 talloc_free(mem_ctx);
348 return LDB_ERR_NO_SUCH_OBJECT;
351 pwdProperties = samdb_result_uint(dom_res->msgs[0], "pwdProperties", 0);
352 pwdHistoryLength = samdb_result_uint(dom_res->msgs[0], "pwdHistoryLength", 0);
353 dnsDomain = ldb_msg_find_string(dom_res->msgs[0], "dnsDomain", NULL);
354 realm = strupper_talloc(mem_ctx, dnsDomain);
356 /* Some operations below require kerberos contexts */
357 if (smb_krb5_init_context(mem_ctx, &smb_krb5_context) != 0) {
358 talloc_free(mem_ctx);
359 return LDB_ERR_OPERATIONS_ERROR;
362 /* Prepare the modifications to set all the hash/key types */
363 modify_msg = ldb_msg_new(req);
364 modify_msg->dn = talloc_reference(modify_msg, dn);
366 #define CHECK_RET(x) \
369 if (check_ret != LDB_SUCCESS) { \
370 talloc_free(mem_ctx); \
375 /* Setup krb5Key (we want to either delete an existing value,
376 * or replace with a new one). Both the unicode and NT hash
377 * only branches append keys to this multivalued entry. */
378 CHECK_RET(ldb_msg_add_empty(modify_msg, "krb5Key", LDB_FLAG_MOD_REPLACE));
379 /* Yay, we can compute new password hashes from the unicode
382 Principal *salt_principal;
383 const char *user_principal_name = ldb_msg_find_string(res->msgs[0], "userPrincipalName", NULL);
388 /* compute the new nt and lm hashes */
389 if (E_deshash(sambaPassword, local_lmNewHash.hash)) {
390 lmPwdHash = &local_lmNewHash;
394 E_md4hash(sambaPassword, local_ntNewHash.hash);
395 ntPwdHash = &local_ntNewHash;
396 CHECK_RET(ldb_msg_add_empty(modify_msg, "ntPwdHash",
397 LDB_FLAG_MOD_REPLACE));
398 CHECK_RET(samdb_msg_add_hash(module->ldb, req,
399 modify_msg, "ntPwdHash",
401 CHECK_RET(ldb_msg_add_empty(modify_msg, "lmPwdHash",
402 LDB_FLAG_MOD_REPLACE));
404 CHECK_RET(samdb_msg_add_hash(module->ldb, req,
405 modify_msg, "lmPwdHash",
409 /* Many, many thanks to lukeh@padl.com for this
410 * algorithm, described in his Nov 10 2004 mail to
411 * samba-technical@samba.org */
414 /* Determine a salting principal */
415 char *samAccountName = talloc_strdup(mem_ctx, ldb_msg_find_string(res->msgs[0], "samAccountName", NULL));
417 if (!samAccountName) {
418 ldb_set_errstring(module->ldb,
419 talloc_asprintf(mem_ctx, "password_hash_handle: "
420 "generation of new kerberos keys failed: %s is a computer without a samAccountName",
421 ldb_dn_linearize(mem_ctx, dn)));
422 talloc_free(mem_ctx);
423 return LDB_ERR_OPERATIONS_ERROR;
425 if (samAccountName[strlen(samAccountName)-1] == '$') {
426 samAccountName[strlen(samAccountName)-1] = '\0';
428 saltbody = talloc_asprintf(mem_ctx, "%s.%s", samAccountName, dnsDomain);
430 krb5_ret = krb5_make_principal(smb_krb5_context->krb5_context, &salt_principal, realm, "host", saltbody, NULL);
431 } else if (user_principal_name) {
433 user_principal_name = talloc_strdup(mem_ctx, user_principal_name);
434 if (!user_principal_name) {
435 talloc_free(mem_ctx);
436 return LDB_ERR_OPERATIONS_ERROR;
438 p = strchr(user_principal_name, '@');
442 krb5_ret = krb5_make_principal(smb_krb5_context->krb5_context, &salt_principal, realm, user_principal_name, NULL);
445 const char *samAccountName = ldb_msg_find_string(res->msgs[0], "samAccountName", NULL);
446 if (!samAccountName) {
447 ldb_set_errstring(module->ldb,
448 talloc_asprintf(mem_ctx, "password_hash_handle: "
449 "generation of new kerberos keys failed: %s has no samAccountName",
450 ldb_dn_linearize(mem_ctx, dn)));
451 talloc_free(mem_ctx);
452 return LDB_ERR_OPERATIONS_ERROR;
454 krb5_ret = krb5_make_principal(smb_krb5_context->krb5_context, &salt_principal, realm, samAccountName, NULL);
459 ldb_set_errstring(module->ldb,
460 talloc_asprintf(mem_ctx, "password_hash_handle: "
461 "generation of a saltking principal failed: %s",
462 smb_get_krb5_error_message(smb_krb5_context->krb5_context,
463 krb5_ret, mem_ctx)));
464 talloc_free(mem_ctx);
465 return LDB_ERR_OPERATIONS_ERROR;
468 /* TODO: We may wish to control the encryption types chosen in future */
469 krb5_ret = hdb_generate_key_set_password(smb_krb5_context->krb5_context,
470 salt_principal, sambaPassword, &keys, &num_keys);
471 krb5_free_principal(smb_krb5_context->krb5_context, salt_principal);
474 ldb_set_errstring(module->ldb,
475 talloc_asprintf(mem_ctx, "password_hash_handle: "
476 "generation of new kerberos keys failed: %s",
477 smb_get_krb5_error_message(smb_krb5_context->krb5_context,
478 krb5_ret, mem_ctx)));
479 talloc_free(mem_ctx);
480 return LDB_ERR_OPERATIONS_ERROR;
485 for (i=0; i < num_keys; i++) {
491 if (keys[i].key.keytype == ENCTYPE_ARCFOUR_HMAC) {
492 /* We might end up doing this below:
493 * This ensures we get the unicode
494 * conversion right. This should also
495 * be fixed in the Heimdal libs */
498 ASN1_MALLOC_ENCODE(Key, buf, buf_size, &keys[i], &len, krb5_ret);
500 val.data = talloc_memdup(req, buf, len);
503 if (!val.data || krb5_ret) {
504 hdb_free_keys (smb_krb5_context->krb5_context, num_keys, keys);
505 talloc_free(mem_ctx);
506 return LDB_ERR_OPERATIONS_ERROR;
508 ret = ldb_msg_add_value(modify_msg, "krb5Key", &val);
509 if (ret != LDB_SUCCESS) {
510 hdb_free_keys (smb_krb5_context->krb5_context, num_keys, keys);
511 talloc_free(mem_ctx);
516 hdb_free_keys (smb_krb5_context->krb5_context, num_keys, keys);
519 /* Possibly kill off the cleartext or store it */
520 CHECK_RET(ldb_msg_add_empty(modify_msg, "sambaPassword", LDB_FLAG_MOD_REPLACE));
522 if (sambaPassword && (pwdProperties & DOMAIN_PASSWORD_STORE_CLEARTEXT) &&
523 (userAccountControl & UF_ENCRYPTED_TEXT_PASSWORD_ALLOWED)) {
524 CHECK_RET(ldb_msg_add_string(modify_msg, "sambaPassword", sambaPassword));
527 /* Even if we didn't get a sambaPassword, we can still setup
528 * krb5Key from the NT hash.
530 * This is an append, so it works with the 'continue' in the
531 * unicode loop above, to use Samba's NT hash function, which
532 * is more correct than Heimdal's
542 key.salt = NULL; /* No salt for this enc type */
544 krb5_ret = krb5_keyblock_init(smb_krb5_context->krb5_context,
545 ENCTYPE_ARCFOUR_HMAC,
546 ntPwdHash->hash, sizeof(ntPwdHash->hash),
549 return LDB_ERR_OPERATIONS_ERROR;
551 ASN1_MALLOC_ENCODE(Key, buf, buf_size, &key, &len, krb5_ret);
552 krb5_free_keyblock_contents(smb_krb5_context->krb5_context,
555 val.data = talloc_memdup(req, buf, len);
558 if (!val.data || ret) {
559 return LDB_ERR_OPERATIONS_ERROR;
561 CHECK_RET(ldb_msg_add_value(modify_msg, "krb5Key", &val));
564 /* If the original caller did anything with pwdLastSet then skip this. It could be an incoming samsync */
565 attribute = ldb_msg_find_element(msg, "pwdLastSet");
566 if (attribute == NULL) {
567 /* Update the password last set time */
568 unix_to_nt_time(&now_nt, now);
569 CHECK_RET(ldb_msg_add_empty(modify_msg, "pwdLastSet", LDB_FLAG_MOD_REPLACE));
570 CHECK_RET(samdb_msg_add_uint64(module->ldb, mem_ctx, modify_msg, "pwdLastSet", now_nt));
573 /* If the original caller did anything with "msDS-KeyVersionNumber" then skip this. It could be an incoming samsync */
574 attribute = ldb_msg_find_element(msg, "msDS-KeyVersionNumber");
575 if (attribute == NULL) {
577 CHECK_RET(ldb_msg_add_empty(modify_msg, "msDS-KeyVersionNumber",
578 LDB_FLAG_MOD_REPLACE));
579 CHECK_RET(samdb_msg_add_uint(module->ldb, mem_ctx, modify_msg, "msDS-KeyVersionNumber", kvno + 1));
581 /* While we should be in a transaction, go one extra
582 * step in the dance for an 'atomic' increment. This
583 * may be of value against remote LDAP servers. (Note
584 * however that Mulitmaster replication stil offers no
587 struct ldb_val old_kvno, new_kvno;
588 old_kvno.data = (uint8_t *)talloc_asprintf(mem_ctx, "%u", kvno);
589 if (!old_kvno.data) {
592 old_kvno.length = strlen((char *)old_kvno.data);
594 new_kvno.data = (uint8_t *)talloc_asprintf(mem_ctx, "%u", kvno + 1);
595 if (!new_kvno.data) {
598 new_kvno.length = strlen((char *)new_kvno.data);
600 CHECK_RET(ldb_msg_add_empty(modify_msg, "msDS-KeyVersionNumber",
601 LDB_FLAG_MOD_DELETE));
602 CHECK_RET(ldb_msg_add_empty(modify_msg, "msDS-KeyVersionNumber",
604 modify_msg->elements[modify_msg->num_elements - 2].num_values = 1;
605 modify_msg->elements[modify_msg->num_elements - 2].values = &old_kvno;
606 modify_msg->elements[modify_msg->num_elements - 1].num_values = 1;
607 modify_msg->elements[modify_msg->num_elements - 1].values = &new_kvno;
611 CHECK_RET(ldb_msg_add_empty(modify_msg, "sambaLMPwdHistory",
612 LDB_FLAG_MOD_REPLACE));
613 CHECK_RET(ldb_msg_add_empty(modify_msg, "sambaNTPwdHistory",
614 LDB_FLAG_MOD_REPLACE));
616 /* If we have something to put into the history, or an old
617 * history element to expire, update the history */
618 if (pwdHistoryLength > 0 &&
619 ((sambaNTPwdHistory_len > 0) || (sambaLMPwdHistory_len > 0)
620 || lmOldHash || ntOldHash)) {
621 /* store the password history */
622 new_sambaLMPwdHistory = talloc_array(mem_ctx, struct samr_Password,
624 if (!new_sambaLMPwdHistory) {
625 return LDB_ERR_OPERATIONS_ERROR;
627 new_sambaNTPwdHistory = talloc_array(mem_ctx, struct samr_Password,
629 if (!new_sambaNTPwdHistory) {
630 return LDB_ERR_OPERATIONS_ERROR;
632 for (i=0;i<MIN(pwdHistoryLength-1, sambaLMPwdHistory_len);i++) {
633 new_sambaLMPwdHistory[i+1] = sambaLMPwdHistory[i];
635 for (i=0;i<MIN(pwdHistoryLength-1, sambaNTPwdHistory_len);i++) {
636 new_sambaNTPwdHistory[i+1] = sambaNTPwdHistory[i];
639 /* Don't store 'long' passwords in the LM history,
640 but make sure to 'expire' one password off the other end */
642 new_sambaLMPwdHistory[0] = *lmOldHash;
644 ZERO_STRUCT(new_sambaLMPwdHistory[0]);
646 sambaLMPwdHistory_len = MIN(sambaLMPwdHistory_len + 1, pwdHistoryLength);
648 /* Likewise, we might not have a new NT password (lm
649 * only password change function) */
651 new_sambaNTPwdHistory[0] = *ntOldHash;
653 ZERO_STRUCT(new_sambaNTPwdHistory[0]);
655 sambaNTPwdHistory_len = MIN(sambaNTPwdHistory_len + 1, pwdHistoryLength);
657 CHECK_RET(samdb_msg_add_hashes(module->ldb, mem_ctx, modify_msg,
659 new_sambaLMPwdHistory,
660 sambaLMPwdHistory_len));
662 CHECK_RET(samdb_msg_add_hashes(module->ldb, mem_ctx, modify_msg,
664 new_sambaNTPwdHistory,
665 sambaNTPwdHistory_len));
668 /* Too much code above, we should check we got it close to reasonable */
669 CHECK_RET(ldb_msg_sanity_check(modify_msg));
671 modify_request = talloc(mem_ctx, struct ldb_request);
672 if (!modify_request) {
673 talloc_free(mem_ctx);
674 return LDB_ERR_OPERATIONS_ERROR;
677 modify_request->operation = LDB_REQ_MODIFY;
678 modify_request->op.mod.message = modify_msg;
679 modify_request->controls = NULL;
681 ret = ldb_next_request(module, modify_request);
683 talloc_free(mem_ctx);
687 /* add_record: do things with the sambaPassword attribute */
688 static int password_hash_add(struct ldb_module *module, struct ldb_request *req)
690 const struct ldb_message *msg = req->op.add.message;
692 ldb_debug(module->ldb, LDB_DEBUG_TRACE, "password_hash_add_record\n");
694 if (ldb_dn_is_special(msg->dn)) { /* do not manipulate our control entries */
695 return ldb_next_request(module, req);
698 return password_hash_handle(module, req, msg);
701 /* modify_record: do things with the sambaPassword attribute */
702 static int password_hash_modify(struct ldb_module *module, struct ldb_request *req)
704 const struct ldb_message *msg = req->op.mod.message;
706 ldb_debug(module->ldb, LDB_DEBUG_TRACE, "password_hash_modify_record\n");
708 if (ldb_dn_is_special(msg->dn)) { /* do not manipulate our control entries */
709 return ldb_next_request(module, req);
712 return password_hash_handle(module, req, msg);
715 static int password_hash_request(struct ldb_module *module, struct ldb_request *req)
717 switch (req->operation) {
720 return password_hash_add(module, req);
723 return password_hash_modify(module, req);
726 return ldb_next_request(module, req);
731 static const struct ldb_module_ops password_hash_ops = {
732 .name = "password_hash",
733 .request = password_hash_request
737 int password_hash_module_init(void)
739 return ldb_register_module(&password_hash_ops);