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s4:smb_server: change the default for "server signing" to "default"
[Samba.git] / nsswitch / libwbclient / wbc_pam.c
blob0aa180ca05c4f8b9e8ad19d7f0b4fbc304809df7
1 /*
2 Unix SMB/CIFS implementation.
3
4 Winbind client API
5
6 Copyright (C) Gerald (Jerry) Carter 2007
7 Copyright (C) Guenther Deschner 2008
8 Copyright (C) Volker Lendecke 2009
9
10 This library is free software; you can redistribute it and/or
11 modify it under the terms of the GNU Lesser General Public
12 License as published by the Free Software Foundation; either
13 version 3 of the License, or (at your option) any later version.
14
15 This library is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Library General Public License for more details.
19
20 You should have received a copy of the GNU Lesser General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 */
23
24 /* Required Headers */
25
26 #define UID_WRAPPER_NOT_REPLACE
27 #include "replace.h"
28 #include "libwbclient.h"
29 #include "../winbind_client.h"
30
31 /* Authenticate a username/password pair */
32 wbcErr wbcAuthenticateUser(const char *username,
33 const char *password)
34 {
35 wbcErr wbc_status = WBC_ERR_SUCCESS;
36 struct wbcAuthUserParams params;
37
38 ZERO_STRUCT(params);
39
40 params.account_name = username;
41 params.level = WBC_AUTH_USER_LEVEL_PLAIN;
42 params.password.plaintext = password;
43
44 wbc_status = wbcAuthenticateUserEx(&params, NULL, NULL);
45 BAIL_ON_WBC_ERROR(wbc_status);
46
47 done:
48 return wbc_status;
49 }
50
51 static bool sid_attr_compose(struct wbcSidWithAttr *s,
52 const struct wbcDomainSid *d,
53 uint32_t rid, uint32_t attr)
54 {
55 if (d->num_auths >= WBC_MAXSUBAUTHS) {
56 return false;
57 }
58 s->sid = *d;
59 s->sid.sub_auths[s->sid.num_auths++] = rid;
60 s->attributes = attr;
61 return true;
62 }
63
64 static void wbcAuthUserInfoDestructor(void *ptr)
65 {
66 struct wbcAuthUserInfo *i = (struct wbcAuthUserInfo *)ptr;
67 free(i->account_name);
68 free(i->user_principal);
69 free(i->full_name);
70 free(i->domain_name);
71 free(i->dns_domain_name);
72 free(i->logon_server);
73 free(i->logon_script);
74 free(i->profile_path);
75 free(i->home_directory);
76 free(i->home_drive);
77 free(i->sids);
78 }
79
80 static wbcErr wbc_create_auth_info(const struct winbindd_response *resp,
81 struct wbcAuthUserInfo **_i)
82 {
83 wbcErr wbc_status = WBC_ERR_SUCCESS;
84 struct wbcAuthUserInfo *i;
85 struct wbcDomainSid domain_sid;
86 char *p;
87 uint32_t sn = 0;
88 uint32_t j;
89
90 i = (struct wbcAuthUserInfo *)wbcAllocateMemory(
91 1, sizeof(struct wbcAuthUserInfo),
92 wbcAuthUserInfoDestructor);
93 BAIL_ON_PTR_ERROR(i, wbc_status);
94
95 i->user_flags = resp->data.auth.info3.user_flgs;
96
97 i->account_name = strdup(resp->data.auth.info3.user_name);
98 BAIL_ON_PTR_ERROR(i->account_name, wbc_status);
99 i->user_principal= NULL;
100 i->full_name = strdup(resp->data.auth.info3.full_name);
101 BAIL_ON_PTR_ERROR(i->full_name, wbc_status);
102 i->domain_name = strdup(resp->data.auth.info3.logon_dom);
103 BAIL_ON_PTR_ERROR(i->domain_name, wbc_status);
104 i->dns_domain_name= NULL;
105
106 i->acct_flags = resp->data.auth.info3.acct_flags;
107 memcpy(i->user_session_key,
108 resp->data.auth.user_session_key,
109 sizeof(i->user_session_key));
110 memcpy(i->lm_session_key,
111 resp->data.auth.first_8_lm_hash,
112 sizeof(i->lm_session_key));
113
114 i->logon_count = resp->data.auth.info3.logon_count;
115 i->bad_password_count = resp->data.auth.info3.bad_pw_count;
116
117 i->logon_time = resp->data.auth.info3.logon_time;
118 i->logoff_time = resp->data.auth.info3.logoff_time;
119 i->kickoff_time = resp->data.auth.info3.kickoff_time;
120 i->pass_last_set_time = resp->data.auth.info3.pass_last_set_time;
121 i->pass_can_change_time = resp->data.auth.info3.pass_can_change_time;
122 i->pass_must_change_time= resp->data.auth.info3.pass_must_change_time;
123
124 i->logon_server = strdup(resp->data.auth.info3.logon_srv);
125 BAIL_ON_PTR_ERROR(i->logon_server, wbc_status);
126 i->logon_script = strdup(resp->data.auth.info3.logon_script);
127 BAIL_ON_PTR_ERROR(i->logon_script, wbc_status);
128 i->profile_path = strdup(resp->data.auth.info3.profile_path);
129 BAIL_ON_PTR_ERROR(i->profile_path, wbc_status);
130 i->home_directory= strdup(resp->data.auth.info3.home_dir);
131 BAIL_ON_PTR_ERROR(i->home_directory, wbc_status);
132 i->home_drive = strdup(resp->data.auth.info3.dir_drive);
133 BAIL_ON_PTR_ERROR(i->home_drive, wbc_status);
134
135 i->num_sids = 2;
136 i->num_sids += resp->data.auth.info3.num_groups;
137 i->num_sids += resp->data.auth.info3.num_other_sids;
138
139 i->sids = (struct wbcSidWithAttr *)calloc(
140 sizeof(struct wbcSidWithAttr), i->num_sids);
141 BAIL_ON_PTR_ERROR(i->sids, wbc_status);
142
143 wbc_status = wbcStringToSid(resp->data.auth.info3.dom_sid,
144 &domain_sid);
145 BAIL_ON_WBC_ERROR(wbc_status);
146
147 sn = 0;
148 if (!sid_attr_compose(&i->sids[sn], &domain_sid,
149 resp->data.auth.info3.user_rid, 0)) {
150 wbc_status = WBC_ERR_INVALID_SID;
151 goto done;
152 }
153 sn++;
154 if (!sid_attr_compose(&i->sids[sn], &domain_sid,
155 resp->data.auth.info3.group_rid, 0)) {
156 wbc_status = WBC_ERR_INVALID_SID;
157 goto done;
158 }
159 sn++;
160
161 p = (char *)resp->extra_data.data;
162 if (!p) {
163 wbc_status = WBC_ERR_INVALID_RESPONSE;
164 BAIL_ON_WBC_ERROR(wbc_status);
165 }
166
167 for (j=0; j < resp->data.auth.info3.num_groups; j++) {
168 uint32_t rid;
169 uint32_t attrs;
170 int ret;
171 char *s = p;
172 char *e = strchr(p, '\n');
173 if (!e) {
174 wbc_status = WBC_ERR_INVALID_RESPONSE;
175 BAIL_ON_WBC_ERROR(wbc_status);
176 }
177 e[0] = '\0';
178 p = &e[1];
179
180 ret = sscanf(s, "0x%08X:0x%08X", &rid, &attrs);
181 if (ret != 2) {
182 wbc_status = WBC_ERR_INVALID_RESPONSE;
183 BAIL_ON_WBC_ERROR(wbc_status);
184 }
185
186 if (!sid_attr_compose(&i->sids[sn], &domain_sid,
187 rid, attrs)) {
188 wbc_status = WBC_ERR_INVALID_SID;
189 goto done;
190 }
191 sn++;
192 }
193
194 for (j=0; j < resp->data.auth.info3.num_other_sids; j++) {
195 uint32_t attrs;
196 int ret;
197 char *s = p;
198 char *a;
199 char *e = strchr(p, '\n');
200 if (!e) {
201 wbc_status = WBC_ERR_INVALID_RESPONSE;
202 BAIL_ON_WBC_ERROR(wbc_status);
203 }
204 e[0] = '\0';
205 p = &e[1];
206
207 e = strchr(s, ':');
208 if (!e) {
209 wbc_status = WBC_ERR_INVALID_RESPONSE;
210 BAIL_ON_WBC_ERROR(wbc_status);
211 }
212 e[0] = '\0';
213 a = &e[1];
214
215 ret = sscanf(a, "0x%08X",
216 &attrs);
217 if (ret != 1) {
218 wbc_status = WBC_ERR_INVALID_RESPONSE;
219 BAIL_ON_WBC_ERROR(wbc_status);
220 }
221
222 wbc_status = wbcStringToSid(s, &i->sids[sn].sid);
223 BAIL_ON_WBC_ERROR(wbc_status);
224
225 i->sids[sn].attributes = attrs;
226 sn++;
227 }
228
229 i->num_sids = sn;
230
231 *_i = i;
232 i = NULL;
233 done:
234 wbcFreeMemory(i);
235 return wbc_status;
236 }
237
238 static void wbcAuthErrorInfoDestructor(void *ptr)
239 {
240 struct wbcAuthErrorInfo *e = (struct wbcAuthErrorInfo *)ptr;
241 free(e->nt_string);
242 free(e->display_string);
243 }
244
245 static wbcErr wbc_create_error_info(const struct winbindd_response *resp,
246 struct wbcAuthErrorInfo **_e)
247 {
248 wbcErr wbc_status = WBC_ERR_SUCCESS;
249 struct wbcAuthErrorInfo *e;
250
251 e = (struct wbcAuthErrorInfo *)wbcAllocateMemory(
252 1, sizeof(struct wbcAuthErrorInfo),
253 wbcAuthErrorInfoDestructor);
254 BAIL_ON_PTR_ERROR(e, wbc_status);
255
256 e->nt_status = resp->data.auth.nt_status;
257 e->pam_error = resp->data.auth.pam_error;
258 e->nt_string = strdup(resp->data.auth.nt_status_string);
259 BAIL_ON_PTR_ERROR(e->nt_string, wbc_status);
260
261 e->display_string = strdup(resp->data.auth.error_string);
262 BAIL_ON_PTR_ERROR(e->display_string, wbc_status);
263
264 *_e = e;
265 e = NULL;
266
267 done:
268 wbcFreeMemory(e);
269 return wbc_status;
270 }
271
272 static wbcErr wbc_create_password_policy_info(const struct winbindd_response *resp,
273 struct wbcUserPasswordPolicyInfo **_i)
274 {
275 wbcErr wbc_status = WBC_ERR_SUCCESS;
276 struct wbcUserPasswordPolicyInfo *i;
277
278 i = (struct wbcUserPasswordPolicyInfo *)wbcAllocateMemory(
279 1, sizeof(struct wbcUserPasswordPolicyInfo), NULL);
280 BAIL_ON_PTR_ERROR(i, wbc_status);
281
282 i->min_passwordage = resp->data.auth.policy.min_passwordage;
283 i->min_length_password = resp->data.auth.policy.min_length_password;
284 i->password_history = resp->data.auth.policy.password_history;
285 i->password_properties = resp->data.auth.policy.password_properties;
286 i->expire = resp->data.auth.policy.expire;
287
288 *_i = i;
289 i = NULL;
290
291 done:
292 wbcFreeMemory(i);
293 return wbc_status;
294 }
295
296 static void wbcLogonUserInfoDestructor(void *ptr)
297 {
298 struct wbcLogonUserInfo *i = (struct wbcLogonUserInfo *)ptr;
299 wbcFreeMemory(i->info);
300 wbcFreeMemory(i->blobs);
301 }
302
303 static wbcErr wbc_create_logon_info(struct winbindd_response *resp,
304 struct wbcLogonUserInfo **_i)
305 {
306 wbcErr wbc_status = WBC_ERR_SUCCESS;
307 struct wbcLogonUserInfo *i;
308
309 i = (struct wbcLogonUserInfo *)wbcAllocateMemory(
310 1, sizeof(struct wbcLogonUserInfo),
311 wbcLogonUserInfoDestructor);
312 BAIL_ON_PTR_ERROR(i, wbc_status);
313
314 wbc_status = wbc_create_auth_info(resp, &i->info);
315 BAIL_ON_WBC_ERROR(wbc_status);
316
317 if (resp->data.auth.krb5ccname[0] != '\0') {
318 wbc_status = wbcAddNamedBlob(&i->num_blobs,
319 &i->blobs,
320 "krb5ccname",
321 0,
322 (uint8_t *)resp->data.auth.krb5ccname,
323 strlen(resp->data.auth.krb5ccname)+1);
324 BAIL_ON_WBC_ERROR(wbc_status);
325 }
326
327 if (resp->data.auth.unix_username[0] != '\0') {
328 wbc_status = wbcAddNamedBlob(&i->num_blobs,
329 &i->blobs,
330 "unix_username",
331 0,
332 (uint8_t *)resp->data.auth.unix_username,
333 strlen(resp->data.auth.unix_username)+1);
334 BAIL_ON_WBC_ERROR(wbc_status);
335 }
336
337 *_i = i;
338 i = NULL;
339 done:
340 wbcFreeMemory(i);
341 return wbc_status;
342 }
343
344
345 /* Authenticate with more detailed information */
346 wbcErr wbcAuthenticateUserEx(const struct wbcAuthUserParams *params,
347 struct wbcAuthUserInfo **info,
348 struct wbcAuthErrorInfo **error)
349 {
350 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
351 int cmd = 0;
352 struct winbindd_request request;
353 struct winbindd_response response;
354
355 ZERO_STRUCT(request);
356 ZERO_STRUCT(response);
357
358 if (error) {
359 *error = NULL;
360 }
361
362 if (!params) {
363 wbc_status = WBC_ERR_INVALID_PARAM;
364 BAIL_ON_WBC_ERROR(wbc_status);
365 }
366
367 if (!params->account_name) {
368 wbc_status = WBC_ERR_INVALID_PARAM;
369 BAIL_ON_WBC_ERROR(wbc_status);
370 }
371
372 /* Initialize request */
373
374 switch (params->level) {
375 case WBC_AUTH_USER_LEVEL_PLAIN:
376 cmd = WINBINDD_PAM_AUTH;
377 request.flags = WBFLAG_PAM_INFO3_TEXT |
378 WBFLAG_PAM_USER_SESSION_KEY |
379 WBFLAG_PAM_LMKEY;
380
381 if (!params->password.plaintext) {
382 wbc_status = WBC_ERR_INVALID_PARAM;
383 BAIL_ON_WBC_ERROR(wbc_status);
384 }
385
386 if (params->domain_name && params->domain_name[0]) {
387 /* We need to get the winbind separator :-( */
388 struct winbindd_response sep_response;
389
390 ZERO_STRUCT(sep_response);
391
392 wbc_status = wbcRequestResponse(WINBINDD_INFO,
393 NULL, &sep_response);
394 BAIL_ON_WBC_ERROR(wbc_status);
395
396 snprintf(request.data.auth.user,
397 sizeof(request.data.auth.user)-1,
398 "%s%c%s",
399 params->domain_name,
400 sep_response.data.info.winbind_separator,
401 params->account_name);
402 } else {
403 strncpy(request.data.auth.user,
404 params->account_name,
405 sizeof(request.data.auth.user)-1);
406 }
407
408 strncpy(request.data.auth.pass,
409 params->password.plaintext,
410 sizeof(request.data.auth.pass)-1);
411 break;
412
413 case WBC_AUTH_USER_LEVEL_HASH:
414 wbc_status = WBC_ERR_NOT_IMPLEMENTED;
415 BAIL_ON_WBC_ERROR(wbc_status);
416 break;
417
418 case WBC_AUTH_USER_LEVEL_RESPONSE:
419 cmd = WINBINDD_PAM_AUTH_CRAP;
420 request.flags = WBFLAG_PAM_INFO3_TEXT |
421 WBFLAG_PAM_USER_SESSION_KEY |
422 WBFLAG_PAM_LMKEY;
423
424 if (params->password.response.lm_length &&
425 !params->password.response.lm_data) {
426 wbc_status = WBC_ERR_INVALID_PARAM;
427 BAIL_ON_WBC_ERROR(wbc_status);
428 }
429 if (params->password.response.lm_length == 0 &&
430 params->password.response.lm_data) {
431 wbc_status = WBC_ERR_INVALID_PARAM;
432 BAIL_ON_WBC_ERROR(wbc_status);
433 }
434
435 if (params->password.response.nt_length &&
436 !params->password.response.nt_data) {
437 wbc_status = WBC_ERR_INVALID_PARAM;
438 BAIL_ON_WBC_ERROR(wbc_status);
439 }
440 if (params->password.response.nt_length == 0&&
441 params->password.response.nt_data) {
442 wbc_status = WBC_ERR_INVALID_PARAM;
443 BAIL_ON_WBC_ERROR(wbc_status);
444 }
445
446 strncpy(request.data.auth_crap.user,
447 params->account_name,
448 sizeof(request.data.auth_crap.user)-1);
449 if (params->domain_name) {
450 strncpy(request.data.auth_crap.domain,
451 params->domain_name,
452 sizeof(request.data.auth_crap.domain)-1);
453 }
454 if (params->workstation_name) {
455 strncpy(request.data.auth_crap.workstation,
456 params->workstation_name,
457 sizeof(request.data.auth_crap.workstation)-1);
458 }
459
460 request.data.auth_crap.logon_parameters =
461 params->parameter_control;
462
463 memcpy(request.data.auth_crap.chal,
464 params->password.response.challenge,
465 sizeof(request.data.auth_crap.chal));
466
467 request.data.auth_crap.lm_resp_len =
468 MIN(params->password.response.lm_length,
469 sizeof(request.data.auth_crap.lm_resp));
470 if (params->password.response.lm_data) {
471 memcpy(request.data.auth_crap.lm_resp,
472 params->password.response.lm_data,
473 request.data.auth_crap.lm_resp_len);
474 }
475 request.data.auth_crap.nt_resp_len = params->password.response.nt_length;
476 if (params->password.response.nt_length > sizeof(request.data.auth_crap.nt_resp)) {
477 request.flags |= WBFLAG_BIG_NTLMV2_BLOB;
478 request.extra_len = params->password.response.nt_length;
479 request.extra_data.data = (char *)malloc(
480 request.extra_len);
481 if (request.extra_data.data == NULL) {
482 wbc_status = WBC_ERR_NO_MEMORY;
483 BAIL_ON_WBC_ERROR(wbc_status);
484 }
485 memcpy(request.extra_data.data,
486 params->password.response.nt_data,
487 request.data.auth_crap.nt_resp_len);
488 } else if (params->password.response.nt_data) {
489 memcpy(request.data.auth_crap.nt_resp,
490 params->password.response.nt_data,
491 request.data.auth_crap.nt_resp_len);
492 }
493 break;
494 default:
495 break;
496 }
497
498 if (cmd == 0) {
499 wbc_status = WBC_ERR_INVALID_PARAM;
500 BAIL_ON_WBC_ERROR(wbc_status);
501 }
502
503 if (params->flags) {
504 request.flags |= params->flags;
505 }
506
507 if (cmd == WINBINDD_PAM_AUTH_CRAP) {
508 wbc_status = wbcRequestResponsePriv(cmd, &request, &response);
509 } else {
510 wbc_status = wbcRequestResponse(cmd, &request, &response);
511 }
512 if (response.data.auth.nt_status != 0) {
513 if (error) {
514 wbc_status = wbc_create_error_info(&response,
515 error);
516 BAIL_ON_WBC_ERROR(wbc_status);
517 }
518
519 wbc_status = WBC_ERR_AUTH_ERROR;
520 BAIL_ON_WBC_ERROR(wbc_status);
521 }
522 BAIL_ON_WBC_ERROR(wbc_status);
523
524 if (info) {
525 wbc_status = wbc_create_auth_info(&response, info);
526 BAIL_ON_WBC_ERROR(wbc_status);
527 }
528
529 done:
530 winbindd_free_response(&response);
531
532 free(request.extra_data.data);
533
534 return wbc_status;
535 }
536
537 /* Trigger a verification of the trust credentials of a specific domain */
538 wbcErr wbcCheckTrustCredentials(const char *domain,
539 struct wbcAuthErrorInfo **error)
540 {
541 struct winbindd_request request;
542 struct winbindd_response response;
543 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
544
545 ZERO_STRUCT(request);
546 ZERO_STRUCT(response);
547
548 if (domain) {
549 strncpy(request.domain_name, domain,
550 sizeof(request.domain_name)-1);
551 }
552
553 /* Send request */
554
555 wbc_status = wbcRequestResponsePriv(WINBINDD_CHECK_MACHACC,
556 &request, &response);
557 if (response.data.auth.nt_status != 0) {
558 if (error) {
559 wbc_status = wbc_create_error_info(&response,
560 error);
561 BAIL_ON_WBC_ERROR(wbc_status);
562 }
563
564 wbc_status = WBC_ERR_AUTH_ERROR;
565 BAIL_ON_WBC_ERROR(wbc_status);
566 }
567 BAIL_ON_WBC_ERROR(wbc_status);
568
569 done:
570 return wbc_status;
571 }
572
573 /* Trigger a change of the trust credentials for a specific domain */
574 wbcErr wbcChangeTrustCredentials(const char *domain,
575 struct wbcAuthErrorInfo **error)
576 {
577 struct winbindd_request request;
578 struct winbindd_response response;
579 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
580
581 ZERO_STRUCT(request);
582 ZERO_STRUCT(response);
583
584 if (domain) {
585 strncpy(request.domain_name, domain,
586 sizeof(request.domain_name)-1);
587 }
588
589 /* Send request */
590
591 wbc_status = wbcRequestResponsePriv(WINBINDD_CHANGE_MACHACC,
592 &request, &response);
593 if (response.data.auth.nt_status != 0) {
594 if (error) {
595 wbc_status = wbc_create_error_info(&response,
596 error);
597 BAIL_ON_WBC_ERROR(wbc_status);
598 }
599
600 wbc_status = WBC_ERR_AUTH_ERROR;
601 BAIL_ON_WBC_ERROR(wbc_status);
602 }
603 BAIL_ON_WBC_ERROR(wbc_status);
604
605 done:
606 return wbc_status;
607 }
608
609 /*
610 * Trigger a no-op NETLOGON call. Lightweight version of
611 * wbcCheckTrustCredentials
612 */
613 wbcErr wbcPingDc(const char *domain, struct wbcAuthErrorInfo **error)
614 {
615 struct winbindd_request request;
616 struct winbindd_response response;
617 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
618
619 if (domain) {
620 /*
621 * the current protocol doesn't support
622 * specifying a domain
623 */
624 wbc_status = WBC_ERR_NOT_IMPLEMENTED;
625 BAIL_ON_WBC_ERROR(wbc_status);
626 }
627
628 ZERO_STRUCT(request);
629 ZERO_STRUCT(response);
630
631 /* Send request */
632
633 wbc_status = wbcRequestResponse(WINBINDD_PING_DC,
634 &request,
635 &response);
636 if (response.data.auth.nt_status != 0) {
637 if (error) {
638 wbc_status = wbc_create_error_info(&response,
639 error);
640 BAIL_ON_WBC_ERROR(wbc_status);
641 }
642
643 wbc_status = WBC_ERR_AUTH_ERROR;
644 BAIL_ON_WBC_ERROR(wbc_status);
645 }
646 BAIL_ON_WBC_ERROR(wbc_status);
647
648 done:
649 return wbc_status;
650 }
651
652 /* Trigger an extended logoff notification to Winbind for a specific user */
653 wbcErr wbcLogoffUserEx(const struct wbcLogoffUserParams *params,
654 struct wbcAuthErrorInfo **error)
655 {
656 struct winbindd_request request;
657 struct winbindd_response response;
658 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
659 int i;
660
661 /* validate input */
662
663 if (!params || !params->username) {
664 wbc_status = WBC_ERR_INVALID_PARAM;
665 BAIL_ON_WBC_ERROR(wbc_status);
666 }
667
668 if ((params->num_blobs > 0) && (params->blobs == NULL)) {
669 wbc_status = WBC_ERR_INVALID_PARAM;
670 BAIL_ON_WBC_ERROR(wbc_status);
671 }
672 if ((params->num_blobs == 0) && (params->blobs != NULL)) {
673 wbc_status = WBC_ERR_INVALID_PARAM;
674 BAIL_ON_WBC_ERROR(wbc_status);
675 }
676
677 ZERO_STRUCT(request);
678 ZERO_STRUCT(response);
679
680 strncpy(request.data.logoff.user, params->username,
681 sizeof(request.data.logoff.user)-1);
682
683 for (i=0; i<params->num_blobs; i++) {
684
685 if (strcasecmp(params->blobs[i].name, "ccfilename") == 0) {
686 if (params->blobs[i].blob.data) {
687 strncpy(request.data.logoff.krb5ccname,
688 (const char *)params->blobs[i].blob.data,
689 sizeof(request.data.logoff.krb5ccname) - 1);
690 }
691 continue;
692 }
693
694 if (strcasecmp(params->blobs[i].name, "user_uid") == 0) {
695 if (params->blobs[i].blob.data) {
696 memcpy(&request.data.logoff.uid,
697 params->blobs[i].blob.data,
698 MIN(params->blobs[i].blob.length,
699 sizeof(request.data.logoff.uid)));
700 }
701 continue;
702 }
703
704 if (strcasecmp(params->blobs[i].name, "flags") == 0) {
705 if (params->blobs[i].blob.data) {
706 memcpy(&request.flags,
707 params->blobs[i].blob.data,
708 MIN(params->blobs[i].blob.length,
709 sizeof(request.flags)));
710 }
711 continue;
712 }
713 }
714
715 /* Send request */
716
717 wbc_status = wbcRequestResponse(WINBINDD_PAM_LOGOFF,
718 &request,
719 &response);
720
721 /* Take the response above and return it to the caller */
722 if (response.data.auth.nt_status != 0) {
723 if (error) {
724 wbc_status = wbc_create_error_info(&response,
725 error);
726 BAIL_ON_WBC_ERROR(wbc_status);
727 }
728
729 wbc_status = WBC_ERR_AUTH_ERROR;
730 BAIL_ON_WBC_ERROR(wbc_status);
731 }
732 BAIL_ON_WBC_ERROR(wbc_status);
733
734 done:
735 return wbc_status;
736 }
737
738 /* Trigger a logoff notification to Winbind for a specific user */
739 wbcErr wbcLogoffUser(const char *username,
740 uid_t uid,
741 const char *ccfilename)
742 {
743 struct winbindd_request request;
744 struct winbindd_response response;
745 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
746
747 /* validate input */
748
749 if (!username) {
750 wbc_status = WBC_ERR_INVALID_PARAM;
751 BAIL_ON_WBC_ERROR(wbc_status);
752 }
753
754 ZERO_STRUCT(request);
755 ZERO_STRUCT(response);
756
757 strncpy(request.data.logoff.user, username,
758 sizeof(request.data.logoff.user)-1);
759 request.data.logoff.uid = uid;
760
761 if (ccfilename) {
762 strncpy(request.data.logoff.krb5ccname, ccfilename,
763 sizeof(request.data.logoff.krb5ccname)-1);
764 }
765
766 /* Send request */
767
768 wbc_status = wbcRequestResponse(WINBINDD_PAM_LOGOFF,
769 &request,
770 &response);
771
772 /* Take the response above and return it to the caller */
773
774 done:
775 return wbc_status;
776 }
777
778 /* Change a password for a user with more detailed information upon failure */
779 wbcErr wbcChangeUserPasswordEx(const struct wbcChangePasswordParams *params,
780 struct wbcAuthErrorInfo **error,
781 enum wbcPasswordChangeRejectReason *reject_reason,
782 struct wbcUserPasswordPolicyInfo **policy)
783 {
784 struct winbindd_request request;
785 struct winbindd_response response;
786 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
787 int cmd = 0;
788
789 /* validate input */
790
791 if (!params->account_name) {
792 wbc_status = WBC_ERR_INVALID_PARAM;
793 goto done;
794 }
795
796 if (error) {
797 *error = NULL;
798 }
799
800 if (policy) {
801 *policy = NULL;
802 }
803
804 if (reject_reason) {
805 *reject_reason = -1;
806 }
807
808 ZERO_STRUCT(request);
809 ZERO_STRUCT(response);
810
811 switch (params->level) {
812 case WBC_CHANGE_PASSWORD_LEVEL_PLAIN:
813 cmd = WINBINDD_PAM_CHAUTHTOK;
814
815 if (!params->account_name) {
816 wbc_status = WBC_ERR_INVALID_PARAM;
817 goto done;
818 }
819
820 strncpy(request.data.chauthtok.user, params->account_name,
821 sizeof(request.data.chauthtok.user) - 1);
822
823 if (params->old_password.plaintext) {
824 strncpy(request.data.chauthtok.oldpass,
825 params->old_password.plaintext,
826 sizeof(request.data.chauthtok.oldpass) - 1);
827 }
828
829 if (params->new_password.plaintext) {
830 strncpy(request.data.chauthtok.newpass,
831 params->new_password.plaintext,
832 sizeof(request.data.chauthtok.newpass) - 1);
833 }
834 break;
835
836 case WBC_CHANGE_PASSWORD_LEVEL_RESPONSE:
837 cmd = WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP;
838
839 if (!params->account_name || !params->domain_name) {
840 wbc_status = WBC_ERR_INVALID_PARAM;
841 goto done;
842 }
843
844 if (params->old_password.response.old_lm_hash_enc_length &&
845 !params->old_password.response.old_lm_hash_enc_data) {
846 wbc_status = WBC_ERR_INVALID_PARAM;
847 goto done;
848 }
849
850 if (params->old_password.response.old_lm_hash_enc_length == 0 &&
851 params->old_password.response.old_lm_hash_enc_data) {
852 wbc_status = WBC_ERR_INVALID_PARAM;
853 goto done;
854 }
855
856 if (params->old_password.response.old_nt_hash_enc_length &&
857 !params->old_password.response.old_nt_hash_enc_data) {
858 wbc_status = WBC_ERR_INVALID_PARAM;
859 goto done;
860 }
861
862 if (params->old_password.response.old_nt_hash_enc_length == 0 &&
863 params->old_password.response.old_nt_hash_enc_data) {
864 wbc_status = WBC_ERR_INVALID_PARAM;
865 goto done;
866 }
867
868 if (params->new_password.response.lm_length &&
869 !params->new_password.response.lm_data) {
870 wbc_status = WBC_ERR_INVALID_PARAM;
871 goto done;
872 }
873
874 if (params->new_password.response.lm_length == 0 &&
875 params->new_password.response.lm_data) {
876 wbc_status = WBC_ERR_INVALID_PARAM;
877 goto done;
878 }
879
880 if (params->new_password.response.nt_length &&
881 !params->new_password.response.nt_data) {
882 wbc_status = WBC_ERR_INVALID_PARAM;
883 goto done;
884 }
885
886 if (params->new_password.response.nt_length == 0 &&
887 params->new_password.response.nt_data) {
888 wbc_status = WBC_ERR_INVALID_PARAM;
889 goto done;
890 }
891
892 strncpy(request.data.chng_pswd_auth_crap.user,
893 params->account_name,
894 sizeof(request.data.chng_pswd_auth_crap.user) - 1);
895
896 strncpy(request.data.chng_pswd_auth_crap.domain,
897 params->domain_name,
898 sizeof(request.data.chng_pswd_auth_crap.domain) - 1);
899
900 if (params->new_password.response.nt_data) {
901 request.data.chng_pswd_auth_crap.new_nt_pswd_len =
902 params->new_password.response.nt_length;
903 memcpy(request.data.chng_pswd_auth_crap.new_nt_pswd,
904 params->new_password.response.nt_data,
905 request.data.chng_pswd_auth_crap.new_nt_pswd_len);
906 }
907
908 if (params->new_password.response.lm_data) {
909 request.data.chng_pswd_auth_crap.new_lm_pswd_len =
910 params->new_password.response.lm_length;
911 memcpy(request.data.chng_pswd_auth_crap.new_lm_pswd,
912 params->new_password.response.lm_data,
913 request.data.chng_pswd_auth_crap.new_lm_pswd_len);
914 }
915
916 if (params->old_password.response.old_nt_hash_enc_data) {
917 request.data.chng_pswd_auth_crap.old_nt_hash_enc_len =
918 params->old_password.response.old_nt_hash_enc_length;
919 memcpy(request.data.chng_pswd_auth_crap.old_nt_hash_enc,
920 params->old_password.response.old_nt_hash_enc_data,
921 request.data.chng_pswd_auth_crap.old_nt_hash_enc_len);
922 }
923
924 if (params->old_password.response.old_lm_hash_enc_data) {
925 request.data.chng_pswd_auth_crap.old_lm_hash_enc_len =
926 params->old_password.response.old_lm_hash_enc_length;
927 memcpy(request.data.chng_pswd_auth_crap.old_lm_hash_enc,
928 params->old_password.response.old_lm_hash_enc_data,
929 request.data.chng_pswd_auth_crap.old_lm_hash_enc_len);
930 }
931
932 break;
933 default:
934 wbc_status = WBC_ERR_INVALID_PARAM;
935 goto done;
936 break;
937 }
938
939 /* Send request */
940
941 wbc_status = wbcRequestResponse(cmd,
942 &request,
943 &response);
944 if (WBC_ERROR_IS_OK(wbc_status)) {
945 goto done;
946 }
947
948 /* Take the response above and return it to the caller */
949
950 if (response.data.auth.nt_status != 0) {
951 if (error) {
952 wbc_status = wbc_create_error_info(&response,
953 error);
954 BAIL_ON_WBC_ERROR(wbc_status);
955 }
956
957 }
958
959 if (policy) {
960 wbc_status = wbc_create_password_policy_info(&response,
961 policy);
962 BAIL_ON_WBC_ERROR(wbc_status);
963 }
964
965 if (reject_reason) {
966 *reject_reason = response.data.auth.reject_reason;
967 }
968
969 wbc_status = WBC_ERR_PWD_CHANGE_FAILED;
970 BAIL_ON_WBC_ERROR(wbc_status);
971
972 done:
973 return wbc_status;
974 }
975
976 /* Change a password for a user */
977 wbcErr wbcChangeUserPassword(const char *username,
978 const char *old_password,
979 const char *new_password)
980 {
981 wbcErr wbc_status = WBC_ERR_SUCCESS;
982 struct wbcChangePasswordParams params;
983
984 ZERO_STRUCT(params);
985
986 params.account_name = username;
987 params.level = WBC_CHANGE_PASSWORD_LEVEL_PLAIN;
988 params.old_password.plaintext = old_password;
989 params.new_password.plaintext = new_password;
990
991 wbc_status = wbcChangeUserPasswordEx(&params,
992 NULL,
993 NULL,
994 NULL);
995 BAIL_ON_WBC_ERROR(wbc_status);
996
997 done:
998 return wbc_status;
999 }
1000
1001 /* Logon a User */
1002 wbcErr wbcLogonUser(const struct wbcLogonUserParams *params,
1003 struct wbcLogonUserInfo **info,
1004 struct wbcAuthErrorInfo **error,
1005 struct wbcUserPasswordPolicyInfo **policy)
1006 {
1007 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
1008 struct winbindd_request request;
1009 struct winbindd_response response;
1010 uint32_t i;
1011
1012 ZERO_STRUCT(request);
1013 ZERO_STRUCT(response);
1014
1015 if (info) {
1016 *info = NULL;
1017 }
1018 if (error) {
1019 *error = NULL;
1020 }
1021 if (policy) {
1022 *policy = NULL;
1023 }
1024
1025 if (!params) {
1026 wbc_status = WBC_ERR_INVALID_PARAM;
1027 BAIL_ON_WBC_ERROR(wbc_status);
1028 }
1029
1030 if (!params->username) {
1031 wbc_status = WBC_ERR_INVALID_PARAM;
1032 BAIL_ON_WBC_ERROR(wbc_status);
1033 }
1034
1035 if ((params->num_blobs > 0) && (params->blobs == NULL)) {
1036 wbc_status = WBC_ERR_INVALID_PARAM;
1037 BAIL_ON_WBC_ERROR(wbc_status);
1038 }
1039 if ((params->num_blobs == 0) && (params->blobs != NULL)) {
1040 wbc_status = WBC_ERR_INVALID_PARAM;
1041 BAIL_ON_WBC_ERROR(wbc_status);
1042 }
1043
1044 /* Initialize request */
1045
1046 request.flags = WBFLAG_PAM_INFO3_TEXT |
1047 WBFLAG_PAM_USER_SESSION_KEY |
1048 WBFLAG_PAM_LMKEY;
1049
1050 if (!params->password) {
1051 wbc_status = WBC_ERR_INVALID_PARAM;
1052 BAIL_ON_WBC_ERROR(wbc_status);
1053 }
1054
1055 strncpy(request.data.auth.user,
1056 params->username,
1057 sizeof(request.data.auth.user)-1);
1058
1059 strncpy(request.data.auth.pass,
1060 params->password,
1061 sizeof(request.data.auth.pass)-1);
1062
1063 for (i=0; i<params->num_blobs; i++) {
1064
1065 if (strcasecmp(params->blobs[i].name, "krb5_cc_type") == 0) {
1066 if (params->blobs[i].blob.data) {
1067 strncpy(request.data.auth.krb5_cc_type,
1068 (const char *)params->blobs[i].blob.data,
1069 sizeof(request.data.auth.krb5_cc_type) - 1);
1070 }
1071 continue;
1072 }
1073
1074 if (strcasecmp(params->blobs[i].name, "user_uid") == 0) {
1075 if (params->blobs[i].blob.data) {
1076 memcpy(&request.data.auth.uid,
1077 params->blobs[i].blob.data,
1078 MIN(sizeof(request.data.auth.uid),
1079 params->blobs[i].blob.length));
1080 }
1081 continue;
1082 }
1083
1084 if (strcasecmp(params->blobs[i].name, "flags") == 0) {
1085 if (params->blobs[i].blob.data) {
1086 uint32_t flags;
1087 memcpy(&flags,
1088 params->blobs[i].blob.data,
1089 MIN(sizeof(flags),
1090 params->blobs[i].blob.length));
1091 request.flags |= flags;
1092 }
1093 continue;
1094 }
1095
1096 if (strcasecmp(params->blobs[i].name, "membership_of") == 0) {
1097 if (params->blobs[i].blob.data &&
1098 params->blobs[i].blob.data[0] > 0) {
1099 strncpy(request.data.auth.require_membership_of_sid,
1100 (const char *)params->blobs[i].blob.data,
1101 sizeof(request.data.auth.require_membership_of_sid) - 1);
1102 }
1103 continue;
1104 }
1105 }
1106
1107 wbc_status = wbcRequestResponse(WINBINDD_PAM_AUTH,
1108 &request,
1109 &response);
1110
1111 if (response.data.auth.nt_status != 0) {
1112 if (error) {
1113 wbc_status = wbc_create_error_info(&response,
1114 error);
1115 BAIL_ON_WBC_ERROR(wbc_status);
1116 }
1117
1118 wbc_status = WBC_ERR_AUTH_ERROR;
1119 BAIL_ON_WBC_ERROR(wbc_status);
1120 }
1121 BAIL_ON_WBC_ERROR(wbc_status);
1122
1123 if (info) {
1124 wbc_status = wbc_create_logon_info(&response,
1125 info);
1126 BAIL_ON_WBC_ERROR(wbc_status);
1127 }
1128
1129 if (policy) {
1130 wbc_status = wbc_create_password_policy_info(&response,
1131 policy);
1132 BAIL_ON_WBC_ERROR(wbc_status);
1133 }
1134
1135 done:
1136 winbindd_free_response(&response);
1137
1138 return wbc_status;
1139 }
1140
1141 static void wbcCredentialCacheInfoDestructor(void *ptr)
1142 {
1143 struct wbcCredentialCacheInfo *i =
1144 (struct wbcCredentialCacheInfo *)ptr;
1145 wbcFreeMemory(i->blobs);
1146 }
1147
1148 /* Authenticate a user with cached credentials */
1149 wbcErr wbcCredentialCache(struct wbcCredentialCacheParams *params,
1150 struct wbcCredentialCacheInfo **info,
1151 struct wbcAuthErrorInfo **error)
1152 {
1153 wbcErr status = WBC_ERR_UNKNOWN_FAILURE;
1154 struct wbcCredentialCacheInfo *result = NULL;
1155 struct winbindd_request request;
1156 struct winbindd_response response;
1157 struct wbcNamedBlob *initial_blob = NULL;
1158 struct wbcNamedBlob *challenge_blob = NULL;
1159 int i;
1160
1161 ZERO_STRUCT(request);
1162 ZERO_STRUCT(response);
1163
1164 *info = NULL;
1165
1166 if (error != NULL) {
1167 *error = NULL;
1168 }
1169 if ((params == NULL)
1170 || (params->account_name == NULL)
1171 || (params->level != WBC_CREDENTIAL_CACHE_LEVEL_NTLMSSP)) {
1172 status = WBC_ERR_INVALID_PARAM;
1173 goto fail;
1174 }
1175
1176 if (params->domain_name != NULL) {
1177 status = wbcRequestResponse(WINBINDD_INFO, NULL, &response);
1178 if (!WBC_ERROR_IS_OK(status)) {
1179 goto fail;
1180 }
1181 snprintf(request.data.ccache_ntlm_auth.user,
1182 sizeof(request.data.ccache_ntlm_auth.user)-1,
1183 "%s%c%s", params->domain_name,
1184 response.data.info.winbind_separator,
1185 params->account_name);
1186 } else {
1187 strncpy(request.data.ccache_ntlm_auth.user,
1188 params->account_name,
1189 sizeof(request.data.ccache_ntlm_auth.user)-1);
1190 }
1191 request.data.ccache_ntlm_auth.uid = getuid();
1192
1193 for (i=0; i<params->num_blobs; i++) {
1194 if (strcasecmp(params->blobs[i].name, "initial_blob") == 0) {
1195 initial_blob = &params->blobs[i];
1196 break;
1197 }
1198 if (strcasecmp(params->blobs[i].name, "challenge_blob") == 0) {
1199 challenge_blob = &params->blobs[i];
1200 break;
1201 }
1202 }
1203
1204 request.data.ccache_ntlm_auth.initial_blob_len = 0;
1205 request.data.ccache_ntlm_auth.challenge_blob_len = 0;
1206 request.extra_len = 0;
1207
1208 if (initial_blob != NULL) {
1209 request.data.ccache_ntlm_auth.initial_blob_len =
1210 initial_blob->blob.length;
1211 request.extra_len += initial_blob->blob.length;
1212 }
1213 if (challenge_blob != NULL) {
1214 request.data.ccache_ntlm_auth.challenge_blob_len =
1215 challenge_blob->blob.length;
1216 request.extra_len += challenge_blob->blob.length;
1217 }
1218
1219 if (request.extra_len != 0) {
1220 request.extra_data.data = (char *)malloc(request.extra_len);
1221 if (request.extra_data.data == NULL) {
1222 status = WBC_ERR_NO_MEMORY;
1223 goto fail;
1224 }
1225 }
1226 if (initial_blob != NULL) {
1227 memcpy(request.extra_data.data,
1228 initial_blob->blob.data, initial_blob->blob.length);
1229 }
1230 if (challenge_blob != NULL) {
1231 memcpy(request.extra_data.data
1232 + request.data.ccache_ntlm_auth.initial_blob_len,
1233 challenge_blob->blob.data,
1234 challenge_blob->blob.length);
1235 }
1236
1237 status = wbcRequestResponse(WINBINDD_CCACHE_NTLMAUTH, &request,
1238 &response);
1239 if (!WBC_ERROR_IS_OK(status)) {
1240 goto fail;
1241 }
1242
1243 result = (struct wbcCredentialCacheInfo *)wbcAllocateMemory(
1244 1, sizeof(struct wbcCredentialCacheInfo),
1245 wbcCredentialCacheInfoDestructor);
1246 if (result == NULL) {
1247 status = WBC_ERR_NO_MEMORY;
1248 goto fail;
1249 }
1250 result->num_blobs = 0;
1251 result->blobs = NULL;
1252 status = wbcAddNamedBlob(&result->num_blobs, &result->blobs,
1253 "auth_blob", 0,
1254 (uint8_t *)response.extra_data.data,
1255 response.data.ccache_ntlm_auth.auth_blob_len);
1256 if (!WBC_ERROR_IS_OK(status)) {
1257 goto fail;
1258 }
1259 status = wbcAddNamedBlob(
1260 &result->num_blobs, &result->blobs, "session_key", 0,
1261 response.data.ccache_ntlm_auth.session_key,
1262 sizeof(response.data.ccache_ntlm_auth.session_key));
1263 if (!WBC_ERROR_IS_OK(status)) {
1264 goto fail;
1265 }
1266
1267 *info = result;
1268 result = NULL;
1269 status = WBC_ERR_SUCCESS;
1270 fail:
1271 free(request.extra_data.data);
1272 winbindd_free_response(&response);
1273 wbcFreeMemory(result);
1274 return status;
1275 }
1276
1277 /* Authenticate a user with cached credentials */
1278 wbcErr wbcCredentialSave(const char *user, const char *password)
1279 {
1280 struct winbindd_request request;
1281 struct winbindd_response response;
1282
1283 ZERO_STRUCT(request);
1284 ZERO_STRUCT(response);
1285
1286 strncpy(request.data.ccache_save.user, user,
1287 sizeof(request.data.ccache_save.user)-1);
1288 strncpy(request.data.ccache_save.pass, password,
1289 sizeof(request.data.ccache_save.pass)-1);
1290 request.data.ccache_save.uid = getuid();
1291
1292 return wbcRequestResponse(WINBINDD_CCACHE_SAVE, &request, &response);
1293 }
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