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libwbclient: allow only one initial_blob/challenge_blob in wbcCredentialCache()
[Samba.git] / nsswitch / libwbclient / wbc_pam.c
blob11b59f6f30ce76b7d2acb4c43a77f80e88a76cac
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 #include "replace.h"
27 #include "libwbclient.h"
28 #include "../winbind_client.h"
29
30 /* Authenticate a username/password pair */
31 wbcErr wbcAuthenticateUser(const char *username,
32 const char *password)
33 {
34 wbcErr wbc_status = WBC_ERR_SUCCESS;
35 struct wbcAuthUserParams params;
36
37 ZERO_STRUCT(params);
38
39 params.account_name = username;
40 params.level = WBC_AUTH_USER_LEVEL_PLAIN;
41 params.password.plaintext = password;
42
43 wbc_status = wbcAuthenticateUserEx(&params, NULL, NULL);
44 BAIL_ON_WBC_ERROR(wbc_status);
45
46 done:
47 return wbc_status;
48 }
49
50 static bool sid_attr_compose(struct wbcSidWithAttr *s,
51 const struct wbcDomainSid *d,
52 uint32_t rid, uint32_t attr)
53 {
54 if (d->num_auths >= WBC_MAXSUBAUTHS) {
55 return false;
56 }
57 s->sid = *d;
58 s->sid.sub_auths[s->sid.num_auths++] = rid;
59 s->attributes = attr;
60 return true;
61 }
62
63 static void wbcAuthUserInfoDestructor(void *ptr)
64 {
65 struct wbcAuthUserInfo *i = (struct wbcAuthUserInfo *)ptr;
66 free(i->account_name);
67 free(i->user_principal);
68 free(i->full_name);
69 free(i->domain_name);
70 free(i->dns_domain_name);
71 free(i->logon_server);
72 free(i->logon_script);
73 free(i->profile_path);
74 free(i->home_directory);
75 free(i->home_drive);
76 free(i->sids);
77 }
78
79 static wbcErr wbc_create_auth_info(const struct winbindd_response *resp,
80 struct wbcAuthUserInfo **_i)
81 {
82 wbcErr wbc_status = WBC_ERR_SUCCESS;
83 struct wbcAuthUserInfo *i;
84 struct wbcDomainSid domain_sid;
85 char *p;
86 uint32_t sn = 0;
87 uint32_t j;
88
89 i = (struct wbcAuthUserInfo *)wbcAllocateMemory(
90 1, sizeof(struct wbcAuthUserInfo),
91 wbcAuthUserInfoDestructor);
92 BAIL_ON_PTR_ERROR(i, wbc_status);
93
94 i->user_flags = resp->data.auth.info3.user_flgs;
95
96 i->account_name = strdup(resp->data.auth.info3.user_name);
97 BAIL_ON_PTR_ERROR(i->account_name, wbc_status);
98 i->user_principal= NULL;
99 i->full_name = strdup(resp->data.auth.info3.full_name);
100 BAIL_ON_PTR_ERROR(i->full_name, wbc_status);
101 i->domain_name = strdup(resp->data.auth.info3.logon_dom);
102 BAIL_ON_PTR_ERROR(i->domain_name, wbc_status);
103 i->dns_domain_name= NULL;
104
105 i->acct_flags = resp->data.auth.info3.acct_flags;
106 memcpy(i->user_session_key,
107 resp->data.auth.user_session_key,
108 sizeof(i->user_session_key));
109 memcpy(i->lm_session_key,
110 resp->data.auth.first_8_lm_hash,
111 sizeof(i->lm_session_key));
112
113 i->logon_count = resp->data.auth.info3.logon_count;
114 i->bad_password_count = resp->data.auth.info3.bad_pw_count;
115
116 i->logon_time = resp->data.auth.info3.logon_time;
117 i->logoff_time = resp->data.auth.info3.logoff_time;
118 i->kickoff_time = resp->data.auth.info3.kickoff_time;
119 i->pass_last_set_time = resp->data.auth.info3.pass_last_set_time;
120 i->pass_can_change_time = resp->data.auth.info3.pass_can_change_time;
121 i->pass_must_change_time= resp->data.auth.info3.pass_must_change_time;
122
123 i->logon_server = strdup(resp->data.auth.info3.logon_srv);
124 BAIL_ON_PTR_ERROR(i->logon_server, wbc_status);
125 i->logon_script = strdup(resp->data.auth.info3.logon_script);
126 BAIL_ON_PTR_ERROR(i->logon_script, wbc_status);
127 i->profile_path = strdup(resp->data.auth.info3.profile_path);
128 BAIL_ON_PTR_ERROR(i->profile_path, wbc_status);
129 i->home_directory= strdup(resp->data.auth.info3.home_dir);
130 BAIL_ON_PTR_ERROR(i->home_directory, wbc_status);
131 i->home_drive = strdup(resp->data.auth.info3.dir_drive);
132 BAIL_ON_PTR_ERROR(i->home_drive, wbc_status);
133
134 i->num_sids = 2;
135 i->num_sids += resp->data.auth.info3.num_groups;
136 i->num_sids += resp->data.auth.info3.num_other_sids;
137
138 i->sids = (struct wbcSidWithAttr *)calloc(
139 sizeof(struct wbcSidWithAttr), i->num_sids);
140 BAIL_ON_PTR_ERROR(i->sids, wbc_status);
141
142 wbc_status = wbcStringToSid(resp->data.auth.info3.dom_sid,
143 &domain_sid);
144 BAIL_ON_WBC_ERROR(wbc_status);
145
146 sn = 0;
147 if (!sid_attr_compose(&i->sids[sn], &domain_sid,
148 resp->data.auth.info3.user_rid, 0)) {
149 wbc_status = WBC_ERR_INVALID_SID;
150 goto done;
151 }
152 sn++;
153 if (!sid_attr_compose(&i->sids[sn], &domain_sid,
154 resp->data.auth.info3.group_rid, 0)) {
155 wbc_status = WBC_ERR_INVALID_SID;
156 goto done;
157 }
158 sn++;
159
160 p = (char *)resp->extra_data.data;
161 if (!p) {
162 wbc_status = WBC_ERR_INVALID_RESPONSE;
163 BAIL_ON_WBC_ERROR(wbc_status);
164 }
165
166 for (j=0; j < resp->data.auth.info3.num_groups; j++) {
167 uint32_t rid;
168 uint32_t attrs;
169 int ret;
170 char *s = p;
171 char *e = strchr(p, '\n');
172 if (!e) {
173 wbc_status = WBC_ERR_INVALID_RESPONSE;
174 BAIL_ON_WBC_ERROR(wbc_status);
175 }
176 e[0] = '\0';
177 p = &e[1];
178
179 ret = sscanf(s, "0x%08X:0x%08X", &rid, &attrs);
180 if (ret != 2) {
181 wbc_status = WBC_ERR_INVALID_RESPONSE;
182 BAIL_ON_WBC_ERROR(wbc_status);
183 }
184
185 if (!sid_attr_compose(&i->sids[sn], &domain_sid,
186 rid, attrs)) {
187 wbc_status = WBC_ERR_INVALID_SID;
188 goto done;
189 }
190 sn++;
191 }
192
193 for (j=0; j < resp->data.auth.info3.num_other_sids; j++) {
194 uint32_t attrs;
195 int ret;
196 char *s = p;
197 char *a;
198 char *e = strchr(p, '\n');
199 if (!e) {
200 wbc_status = WBC_ERR_INVALID_RESPONSE;
201 BAIL_ON_WBC_ERROR(wbc_status);
202 }
203 e[0] = '\0';
204 p = &e[1];
205
206 e = strchr(s, ':');
207 if (!e) {
208 wbc_status = WBC_ERR_INVALID_RESPONSE;
209 BAIL_ON_WBC_ERROR(wbc_status);
210 }
211 e[0] = '\0';
212 a = &e[1];
213
214 ret = sscanf(a, "0x%08X",
215 &attrs);
216 if (ret != 1) {
217 wbc_status = WBC_ERR_INVALID_RESPONSE;
218 BAIL_ON_WBC_ERROR(wbc_status);
219 }
220
221 wbc_status = wbcStringToSid(s, &i->sids[sn].sid);
222 BAIL_ON_WBC_ERROR(wbc_status);
223
224 i->sids[sn].attributes = attrs;
225 sn++;
226 }
227
228 i->num_sids = sn;
229
230 *_i = i;
231 i = NULL;
232 done:
233 wbcFreeMemory(i);
234 return wbc_status;
235 }
236
237 static void wbcAuthErrorInfoDestructor(void *ptr)
238 {
239 struct wbcAuthErrorInfo *e = (struct wbcAuthErrorInfo *)ptr;
240 free(e->nt_string);
241 free(e->display_string);
242 }
243
244 static wbcErr wbc_create_error_info(const struct winbindd_response *resp,
245 struct wbcAuthErrorInfo **_e)
246 {
247 wbcErr wbc_status = WBC_ERR_SUCCESS;
248 struct wbcAuthErrorInfo *e;
249
250 e = (struct wbcAuthErrorInfo *)wbcAllocateMemory(
251 1, sizeof(struct wbcAuthErrorInfo),
252 wbcAuthErrorInfoDestructor);
253 BAIL_ON_PTR_ERROR(e, wbc_status);
254
255 e->nt_status = resp->data.auth.nt_status;
256 e->pam_error = resp->data.auth.pam_error;
257 e->nt_string = strdup(resp->data.auth.nt_status_string);
258 BAIL_ON_PTR_ERROR(e->nt_string, wbc_status);
259
260 e->display_string = strdup(resp->data.auth.error_string);
261 BAIL_ON_PTR_ERROR(e->display_string, wbc_status);
262
263 *_e = e;
264 e = NULL;
265
266 done:
267 wbcFreeMemory(e);
268 return wbc_status;
269 }
270
271 static wbcErr wbc_create_password_policy_info(const struct winbindd_response *resp,
272 struct wbcUserPasswordPolicyInfo **_i)
273 {
274 wbcErr wbc_status = WBC_ERR_SUCCESS;
275 struct wbcUserPasswordPolicyInfo *i;
276
277 i = (struct wbcUserPasswordPolicyInfo *)wbcAllocateMemory(
278 1, sizeof(struct wbcUserPasswordPolicyInfo), NULL);
279 BAIL_ON_PTR_ERROR(i, wbc_status);
280
281 i->min_passwordage = resp->data.auth.policy.min_passwordage;
282 i->min_length_password = resp->data.auth.policy.min_length_password;
283 i->password_history = resp->data.auth.policy.password_history;
284 i->password_properties = resp->data.auth.policy.password_properties;
285 i->expire = resp->data.auth.policy.expire;
286
287 *_i = i;
288 i = NULL;
289
290 done:
291 wbcFreeMemory(i);
292 return wbc_status;
293 }
294
295 static void wbcLogonUserInfoDestructor(void *ptr)
296 {
297 struct wbcLogonUserInfo *i = (struct wbcLogonUserInfo *)ptr;
298 wbcFreeMemory(i->info);
299 wbcFreeMemory(i->blobs);
300 }
301
302 static wbcErr wbc_create_logon_info(struct winbindd_response *resp,
303 struct wbcLogonUserInfo **_i)
304 {
305 wbcErr wbc_status = WBC_ERR_SUCCESS;
306 struct wbcLogonUserInfo *i;
307
308 i = (struct wbcLogonUserInfo *)wbcAllocateMemory(
309 1, sizeof(struct wbcLogonUserInfo),
310 wbcLogonUserInfoDestructor);
311 BAIL_ON_PTR_ERROR(i, wbc_status);
312
313 wbc_status = wbc_create_auth_info(resp, &i->info);
314 BAIL_ON_WBC_ERROR(wbc_status);
315
316 if (resp->data.auth.krb5ccname[0] != '\0') {
317 wbc_status = wbcAddNamedBlob(&i->num_blobs,
318 &i->blobs,
319 "krb5ccname",
320 0,
321 (uint8_t *)resp->data.auth.krb5ccname,
322 strlen(resp->data.auth.krb5ccname)+1);
323 BAIL_ON_WBC_ERROR(wbc_status);
324 }
325
326 if (resp->data.auth.unix_username[0] != '\0') {
327 wbc_status = wbcAddNamedBlob(&i->num_blobs,
328 &i->blobs,
329 "unix_username",
330 0,
331 (uint8_t *)resp->data.auth.unix_username,
332 strlen(resp->data.auth.unix_username)+1);
333 BAIL_ON_WBC_ERROR(wbc_status);
334 }
335
336 *_i = i;
337 i = NULL;
338 done:
339 wbcFreeMemory(i);
340 return wbc_status;
341 }
342
343
344 /* Authenticate with more detailed information */
345 wbcErr wbcAuthenticateUserEx(const struct wbcAuthUserParams *params,
346 struct wbcAuthUserInfo **info,
347 struct wbcAuthErrorInfo **error)
348 {
349 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
350 int cmd = 0;
351 struct winbindd_request request;
352 struct winbindd_response response;
353
354 ZERO_STRUCT(request);
355 ZERO_STRUCT(response);
356
357 if (error) {
358 *error = NULL;
359 }
360
361 if (!params) {
362 wbc_status = WBC_ERR_INVALID_PARAM;
363 BAIL_ON_WBC_ERROR(wbc_status);
364 }
365
366 if (params->level != WBC_AUTH_USER_LEVEL_PAC && !params->account_name) {
367 wbc_status = WBC_ERR_INVALID_PARAM;
368 BAIL_ON_WBC_ERROR(wbc_status);
369 }
370
371 /* Initialize request */
372
373 switch (params->level) {
374 case WBC_AUTH_USER_LEVEL_PLAIN:
375 cmd = WINBINDD_PAM_AUTH;
376 request.flags = WBFLAG_PAM_INFO3_TEXT |
377 WBFLAG_PAM_USER_SESSION_KEY |
378 WBFLAG_PAM_LMKEY;
379
380 if (!params->password.plaintext) {
381 wbc_status = WBC_ERR_INVALID_PARAM;
382 BAIL_ON_WBC_ERROR(wbc_status);
383 }
384
385 if (params->domain_name && params->domain_name[0]) {
386 /* We need to get the winbind separator :-( */
387 struct winbindd_response sep_response;
388
389 ZERO_STRUCT(sep_response);
390
391 wbc_status = wbcRequestResponse(WINBINDD_INFO,
392 NULL, &sep_response);
393 BAIL_ON_WBC_ERROR(wbc_status);
394
395 snprintf(request.data.auth.user,
396 sizeof(request.data.auth.user)-1,
397 "%s%c%s",
398 params->domain_name,
399 sep_response.data.info.winbind_separator,
400 params->account_name);
401 } else {
402 strncpy(request.data.auth.user,
403 params->account_name,
404 sizeof(request.data.auth.user)-1);
405 }
406
407 strncpy(request.data.auth.pass,
408 params->password.plaintext,
409 sizeof(request.data.auth.pass)-1);
410 break;
411
412 case WBC_AUTH_USER_LEVEL_HASH:
413 wbc_status = WBC_ERR_NOT_IMPLEMENTED;
414 BAIL_ON_WBC_ERROR(wbc_status);
415 break;
416
417 case WBC_AUTH_USER_LEVEL_RESPONSE:
418 cmd = WINBINDD_PAM_AUTH_CRAP;
419 request.flags = WBFLAG_PAM_INFO3_TEXT |
420 WBFLAG_PAM_USER_SESSION_KEY |
421 WBFLAG_PAM_LMKEY;
422
423 if (params->password.response.lm_length &&
424 !params->password.response.lm_data) {
425 wbc_status = WBC_ERR_INVALID_PARAM;
426 BAIL_ON_WBC_ERROR(wbc_status);
427 }
428 if (params->password.response.lm_length == 0 &&
429 params->password.response.lm_data) {
430 wbc_status = WBC_ERR_INVALID_PARAM;
431 BAIL_ON_WBC_ERROR(wbc_status);
432 }
433
434 if (params->password.response.nt_length &&
435 !params->password.response.nt_data) {
436 wbc_status = WBC_ERR_INVALID_PARAM;
437 BAIL_ON_WBC_ERROR(wbc_status);
438 }
439 if (params->password.response.nt_length == 0&&
440 params->password.response.nt_data) {
441 wbc_status = WBC_ERR_INVALID_PARAM;
442 BAIL_ON_WBC_ERROR(wbc_status);
443 }
444
445 strncpy(request.data.auth_crap.user,
446 params->account_name,
447 sizeof(request.data.auth_crap.user)-1);
448 if (params->domain_name) {
449 strncpy(request.data.auth_crap.domain,
450 params->domain_name,
451 sizeof(request.data.auth_crap.domain)-1);
452 }
453 if (params->workstation_name) {
454 strncpy(request.data.auth_crap.workstation,
455 params->workstation_name,
456 sizeof(request.data.auth_crap.workstation)-1);
457 }
458
459 request.data.auth_crap.logon_parameters =
460 params->parameter_control;
461
462 memcpy(request.data.auth_crap.chal,
463 params->password.response.challenge,
464 sizeof(request.data.auth_crap.chal));
465
466 request.data.auth_crap.lm_resp_len =
467 MIN(params->password.response.lm_length,
468 sizeof(request.data.auth_crap.lm_resp));
469 if (params->password.response.lm_data) {
470 memcpy(request.data.auth_crap.lm_resp,
471 params->password.response.lm_data,
472 request.data.auth_crap.lm_resp_len);
473 }
474 request.data.auth_crap.nt_resp_len = params->password.response.nt_length;
475 if (params->password.response.nt_length > sizeof(request.data.auth_crap.nt_resp)) {
476 request.flags |= WBFLAG_BIG_NTLMV2_BLOB;
477 request.extra_len = params->password.response.nt_length;
478 request.extra_data.data = (char *)malloc(
479 request.extra_len);
480 if (request.extra_data.data == NULL) {
481 wbc_status = WBC_ERR_NO_MEMORY;
482 BAIL_ON_WBC_ERROR(wbc_status);
483 }
484 memcpy(request.extra_data.data,
485 params->password.response.nt_data,
486 request.data.auth_crap.nt_resp_len);
487 } else if (params->password.response.nt_data) {
488 memcpy(request.data.auth_crap.nt_resp,
489 params->password.response.nt_data,
490 request.data.auth_crap.nt_resp_len);
491 }
492 break;
493
494 case WBC_AUTH_USER_LEVEL_PAC:
495 cmd = WINBINDD_PAM_AUTH_CRAP;
496 request.flags = WBFLAG_PAM_AUTH_PAC | WBFLAG_PAM_INFO3_TEXT;
497 request.extra_data.data = malloc(params->password.pac.length);
498 if (request.extra_data.data == NULL) {
499 wbc_status = WBC_ERR_NO_MEMORY;
500 BAIL_ON_WBC_ERROR(wbc_status);
501 }
502 memcpy(request.extra_data.data, params->password.pac.data,
503 params->password.pac.length);
504 request.extra_len = params->password.pac.length;
505 break;
506
507 default:
508 break;
509 }
510
511 if (cmd == 0) {
512 wbc_status = WBC_ERR_INVALID_PARAM;
513 BAIL_ON_WBC_ERROR(wbc_status);
514 }
515
516 if (params->flags) {
517 request.flags |= params->flags;
518 }
519
520 if (cmd == WINBINDD_PAM_AUTH_CRAP) {
521 wbc_status = wbcRequestResponsePriv(cmd, &request, &response);
522 } else {
523 wbc_status = wbcRequestResponse(cmd, &request, &response);
524 }
525 if (response.data.auth.nt_status != 0) {
526 if (error) {
527 wbc_status = wbc_create_error_info(&response,
528 error);
529 BAIL_ON_WBC_ERROR(wbc_status);
530 }
531
532 wbc_status = WBC_ERR_AUTH_ERROR;
533 BAIL_ON_WBC_ERROR(wbc_status);
534 }
535 BAIL_ON_WBC_ERROR(wbc_status);
536
537 if (info) {
538 wbc_status = wbc_create_auth_info(&response, info);
539 BAIL_ON_WBC_ERROR(wbc_status);
540 }
541
542 done:
543 winbindd_free_response(&response);
544
545 free(request.extra_data.data);
546
547 return wbc_status;
548 }
549
550 /* Trigger a verification of the trust credentials of a specific domain */
551 wbcErr wbcCheckTrustCredentials(const char *domain,
552 struct wbcAuthErrorInfo **error)
553 {
554 struct winbindd_request request;
555 struct winbindd_response response;
556 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
557
558 ZERO_STRUCT(request);
559 ZERO_STRUCT(response);
560
561 if (domain) {
562 strncpy(request.domain_name, domain,
563 sizeof(request.domain_name)-1);
564 }
565
566 /* Send request */
567
568 wbc_status = wbcRequestResponsePriv(WINBINDD_CHECK_MACHACC,
569 &request, &response);
570 if (response.data.auth.nt_status != 0) {
571 if (error) {
572 wbc_status = wbc_create_error_info(&response,
573 error);
574 BAIL_ON_WBC_ERROR(wbc_status);
575 }
576
577 wbc_status = WBC_ERR_AUTH_ERROR;
578 BAIL_ON_WBC_ERROR(wbc_status);
579 }
580 BAIL_ON_WBC_ERROR(wbc_status);
581
582 done:
583 return wbc_status;
584 }
585
586 /* Trigger a change of the trust credentials for a specific domain */
587 wbcErr wbcChangeTrustCredentials(const char *domain,
588 struct wbcAuthErrorInfo **error)
589 {
590 struct winbindd_request request;
591 struct winbindd_response response;
592 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
593
594 ZERO_STRUCT(request);
595 ZERO_STRUCT(response);
596
597 if (domain) {
598 strncpy(request.domain_name, domain,
599 sizeof(request.domain_name)-1);
600 }
601
602 /* Send request */
603
604 wbc_status = wbcRequestResponsePriv(WINBINDD_CHANGE_MACHACC,
605 &request, &response);
606 if (response.data.auth.nt_status != 0) {
607 if (error) {
608 wbc_status = wbc_create_error_info(&response,
609 error);
610 BAIL_ON_WBC_ERROR(wbc_status);
611 }
612
613 wbc_status = WBC_ERR_AUTH_ERROR;
614 BAIL_ON_WBC_ERROR(wbc_status);
615 }
616 BAIL_ON_WBC_ERROR(wbc_status);
617
618 done:
619 return wbc_status;
620 }
621
622 /*
623 * Trigger a no-op NETLOGON call. Lightweight version of
624 * wbcCheckTrustCredentials
625 */
626 wbcErr wbcPingDc(const char *domain, struct wbcAuthErrorInfo **error)
627 {
628 return wbcPingDc2(domain, error, NULL);
629 }
630
631 /*
632 * Trigger a no-op NETLOGON call. Lightweight version of
633 * wbcCheckTrustCredentials, optionally return attempted DC
634 */
635 wbcErr wbcPingDc2(const char *domain, struct wbcAuthErrorInfo **error,
636 char **dcname)
637 {
638 struct winbindd_request request;
639 struct winbindd_response response;
640 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
641
642 if (domain) {
643 /*
644 * the current protocol doesn't support
645 * specifying a domain
646 */
647 wbc_status = WBC_ERR_NOT_IMPLEMENTED;
648 BAIL_ON_WBC_ERROR(wbc_status);
649 }
650
651 ZERO_STRUCT(request);
652 ZERO_STRUCT(response);
653
654 /* Send request */
655
656 wbc_status = wbcRequestResponse(WINBINDD_PING_DC,
657 &request,
658 &response);
659
660 if (dcname && response.extra_data.data) {
661 size_t len;
662
663 len = response.length - sizeof(struct winbindd_response);
664 *dcname = wbcAllocateMemory(1, len, NULL);
665 BAIL_ON_PTR_ERROR(*dcname, wbc_status);
666
667 strlcpy(*dcname, response.extra_data.data, len);
668 }
669
670 if (response.data.auth.nt_status != 0) {
671 if (error) {
672 wbc_status = wbc_create_error_info(&response,
673 error);
674 BAIL_ON_WBC_ERROR(wbc_status);
675 }
676
677 wbc_status = WBC_ERR_AUTH_ERROR;
678 BAIL_ON_WBC_ERROR(wbc_status);
679 }
680 BAIL_ON_WBC_ERROR(wbc_status);
681
682 done:
683 return wbc_status;
684 }
685
686 /* Trigger an extended logoff notification to Winbind for a specific user */
687 wbcErr wbcLogoffUserEx(const struct wbcLogoffUserParams *params,
688 struct wbcAuthErrorInfo **error)
689 {
690 struct winbindd_request request;
691 struct winbindd_response response;
692 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
693 int i;
694
695 /* validate input */
696
697 if (!params || !params->username) {
698 wbc_status = WBC_ERR_INVALID_PARAM;
699 BAIL_ON_WBC_ERROR(wbc_status);
700 }
701
702 if ((params->num_blobs > 0) && (params->blobs == NULL)) {
703 wbc_status = WBC_ERR_INVALID_PARAM;
704 BAIL_ON_WBC_ERROR(wbc_status);
705 }
706 if ((params->num_blobs == 0) && (params->blobs != NULL)) {
707 wbc_status = WBC_ERR_INVALID_PARAM;
708 BAIL_ON_WBC_ERROR(wbc_status);
709 }
710
711 ZERO_STRUCT(request);
712 ZERO_STRUCT(response);
713
714 strncpy(request.data.logoff.user, params->username,
715 sizeof(request.data.logoff.user)-1);
716
717 for (i=0; i<params->num_blobs; i++) {
718
719 if (strcasecmp(params->blobs[i].name, "ccfilename") == 0) {
720 if (params->blobs[i].blob.data) {
721 strncpy(request.data.logoff.krb5ccname,
722 (const char *)params->blobs[i].blob.data,
723 sizeof(request.data.logoff.krb5ccname) - 1);
724 }
725 continue;
726 }
727
728 if (strcasecmp(params->blobs[i].name, "user_uid") == 0) {
729 if (params->blobs[i].blob.data) {
730 memcpy(&request.data.logoff.uid,
731 params->blobs[i].blob.data,
732 MIN(params->blobs[i].blob.length,
733 sizeof(request.data.logoff.uid)));
734 }
735 continue;
736 }
737
738 if (strcasecmp(params->blobs[i].name, "flags") == 0) {
739 if (params->blobs[i].blob.data) {
740 memcpy(&request.flags,
741 params->blobs[i].blob.data,
742 MIN(params->blobs[i].blob.length,
743 sizeof(request.flags)));
744 }
745 continue;
746 }
747 }
748
749 /* Send request */
750
751 wbc_status = wbcRequestResponse(WINBINDD_PAM_LOGOFF,
752 &request,
753 &response);
754
755 /* Take the response above and return it to the caller */
756 if (response.data.auth.nt_status != 0) {
757 if (error) {
758 wbc_status = wbc_create_error_info(&response,
759 error);
760 BAIL_ON_WBC_ERROR(wbc_status);
761 }
762
763 wbc_status = WBC_ERR_AUTH_ERROR;
764 BAIL_ON_WBC_ERROR(wbc_status);
765 }
766 BAIL_ON_WBC_ERROR(wbc_status);
767
768 done:
769 return wbc_status;
770 }
771
772 /* Trigger a logoff notification to Winbind for a specific user */
773 wbcErr wbcLogoffUser(const char *username,
774 uid_t uid,
775 const char *ccfilename)
776 {
777 struct winbindd_request request;
778 struct winbindd_response response;
779 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
780
781 /* validate input */
782
783 if (!username) {
784 wbc_status = WBC_ERR_INVALID_PARAM;
785 BAIL_ON_WBC_ERROR(wbc_status);
786 }
787
788 ZERO_STRUCT(request);
789 ZERO_STRUCT(response);
790
791 strncpy(request.data.logoff.user, username,
792 sizeof(request.data.logoff.user)-1);
793 request.data.logoff.uid = uid;
794
795 if (ccfilename) {
796 strncpy(request.data.logoff.krb5ccname, ccfilename,
797 sizeof(request.data.logoff.krb5ccname)-1);
798 }
799
800 /* Send request */
801
802 wbc_status = wbcRequestResponse(WINBINDD_PAM_LOGOFF,
803 &request,
804 &response);
805
806 /* Take the response above and return it to the caller */
807
808 done:
809 return wbc_status;
810 }
811
812 /* Change a password for a user with more detailed information upon failure */
813 wbcErr wbcChangeUserPasswordEx(const struct wbcChangePasswordParams *params,
814 struct wbcAuthErrorInfo **error,
815 enum wbcPasswordChangeRejectReason *reject_reason,
816 struct wbcUserPasswordPolicyInfo **policy)
817 {
818 struct winbindd_request request;
819 struct winbindd_response response;
820 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
821 int cmd = 0;
822
823 /* validate input */
824
825 if (!params->account_name) {
826 wbc_status = WBC_ERR_INVALID_PARAM;
827 goto done;
828 }
829
830 if (error) {
831 *error = NULL;
832 }
833
834 if (policy) {
835 *policy = NULL;
836 }
837
838 if (reject_reason) {
839 *reject_reason = -1;
840 }
841
842 ZERO_STRUCT(request);
843 ZERO_STRUCT(response);
844
845 switch (params->level) {
846 case WBC_CHANGE_PASSWORD_LEVEL_PLAIN:
847 cmd = WINBINDD_PAM_CHAUTHTOK;
848
849 if (!params->account_name) {
850 wbc_status = WBC_ERR_INVALID_PARAM;
851 goto done;
852 }
853
854 strncpy(request.data.chauthtok.user, params->account_name,
855 sizeof(request.data.chauthtok.user) - 1);
856
857 if (params->old_password.plaintext) {
858 strncpy(request.data.chauthtok.oldpass,
859 params->old_password.plaintext,
860 sizeof(request.data.chauthtok.oldpass) - 1);
861 }
862
863 if (params->new_password.plaintext) {
864 strncpy(request.data.chauthtok.newpass,
865 params->new_password.plaintext,
866 sizeof(request.data.chauthtok.newpass) - 1);
867 }
868 break;
869
870 case WBC_CHANGE_PASSWORD_LEVEL_RESPONSE:
871 cmd = WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP;
872
873 if (!params->account_name || !params->domain_name) {
874 wbc_status = WBC_ERR_INVALID_PARAM;
875 goto done;
876 }
877
878 if (params->old_password.response.old_lm_hash_enc_length &&
879 !params->old_password.response.old_lm_hash_enc_data) {
880 wbc_status = WBC_ERR_INVALID_PARAM;
881 goto done;
882 }
883
884 if (params->old_password.response.old_lm_hash_enc_length == 0 &&
885 params->old_password.response.old_lm_hash_enc_data) {
886 wbc_status = WBC_ERR_INVALID_PARAM;
887 goto done;
888 }
889
890 if (params->old_password.response.old_nt_hash_enc_length &&
891 !params->old_password.response.old_nt_hash_enc_data) {
892 wbc_status = WBC_ERR_INVALID_PARAM;
893 goto done;
894 }
895
896 if (params->old_password.response.old_nt_hash_enc_length == 0 &&
897 params->old_password.response.old_nt_hash_enc_data) {
898 wbc_status = WBC_ERR_INVALID_PARAM;
899 goto done;
900 }
901
902 if (params->new_password.response.lm_length &&
903 !params->new_password.response.lm_data) {
904 wbc_status = WBC_ERR_INVALID_PARAM;
905 goto done;
906 }
907
908 if (params->new_password.response.lm_length == 0 &&
909 params->new_password.response.lm_data) {
910 wbc_status = WBC_ERR_INVALID_PARAM;
911 goto done;
912 }
913
914 if (params->new_password.response.nt_length &&
915 !params->new_password.response.nt_data) {
916 wbc_status = WBC_ERR_INVALID_PARAM;
917 goto done;
918 }
919
920 if (params->new_password.response.nt_length == 0 &&
921 params->new_password.response.nt_data) {
922 wbc_status = WBC_ERR_INVALID_PARAM;
923 goto done;
924 }
925
926 strncpy(request.data.chng_pswd_auth_crap.user,
927 params->account_name,
928 sizeof(request.data.chng_pswd_auth_crap.user) - 1);
929
930 strncpy(request.data.chng_pswd_auth_crap.domain,
931 params->domain_name,
932 sizeof(request.data.chng_pswd_auth_crap.domain) - 1);
933
934 if (params->new_password.response.nt_data) {
935 request.data.chng_pswd_auth_crap.new_nt_pswd_len =
936 params->new_password.response.nt_length;
937 memcpy(request.data.chng_pswd_auth_crap.new_nt_pswd,
938 params->new_password.response.nt_data,
939 request.data.chng_pswd_auth_crap.new_nt_pswd_len);
940 }
941
942 if (params->new_password.response.lm_data) {
943 request.data.chng_pswd_auth_crap.new_lm_pswd_len =
944 params->new_password.response.lm_length;
945 memcpy(request.data.chng_pswd_auth_crap.new_lm_pswd,
946 params->new_password.response.lm_data,
947 request.data.chng_pswd_auth_crap.new_lm_pswd_len);
948 }
949
950 if (params->old_password.response.old_nt_hash_enc_data) {
951 request.data.chng_pswd_auth_crap.old_nt_hash_enc_len =
952 params->old_password.response.old_nt_hash_enc_length;
953 memcpy(request.data.chng_pswd_auth_crap.old_nt_hash_enc,
954 params->old_password.response.old_nt_hash_enc_data,
955 request.data.chng_pswd_auth_crap.old_nt_hash_enc_len);
956 }
957
958 if (params->old_password.response.old_lm_hash_enc_data) {
959 request.data.chng_pswd_auth_crap.old_lm_hash_enc_len =
960 params->old_password.response.old_lm_hash_enc_length;
961 memcpy(request.data.chng_pswd_auth_crap.old_lm_hash_enc,
962 params->old_password.response.old_lm_hash_enc_data,
963 request.data.chng_pswd_auth_crap.old_lm_hash_enc_len);
964 }
965
966 break;
967 default:
968 wbc_status = WBC_ERR_INVALID_PARAM;
969 goto done;
970 break;
971 }
972
973 /* Send request */
974
975 wbc_status = wbcRequestResponse(cmd,
976 &request,
977 &response);
978 if (WBC_ERROR_IS_OK(wbc_status)) {
979 goto done;
980 }
981
982 /* Take the response above and return it to the caller */
983
984 if (response.data.auth.nt_status != 0) {
985 if (error) {
986 wbc_status = wbc_create_error_info(&response,
987 error);
988 BAIL_ON_WBC_ERROR(wbc_status);
989 }
990
991 }
992
993 if (policy) {
994 wbc_status = wbc_create_password_policy_info(&response,
995 policy);
996 BAIL_ON_WBC_ERROR(wbc_status);
997 }
998
999 if (reject_reason) {
1000 *reject_reason = response.data.auth.reject_reason;
1001 }
1002
1003 wbc_status = WBC_ERR_PWD_CHANGE_FAILED;
1004 BAIL_ON_WBC_ERROR(wbc_status);
1005
1006 done:
1007 return wbc_status;
1008 }
1009
1010 /* Change a password for a user */
1011 wbcErr wbcChangeUserPassword(const char *username,
1012 const char *old_password,
1013 const char *new_password)
1014 {
1015 wbcErr wbc_status = WBC_ERR_SUCCESS;
1016 struct wbcChangePasswordParams params;
1017
1018 ZERO_STRUCT(params);
1019
1020 params.account_name = username;
1021 params.level = WBC_CHANGE_PASSWORD_LEVEL_PLAIN;
1022 params.old_password.plaintext = old_password;
1023 params.new_password.plaintext = new_password;
1024
1025 wbc_status = wbcChangeUserPasswordEx(&params,
1026 NULL,
1027 NULL,
1028 NULL);
1029 BAIL_ON_WBC_ERROR(wbc_status);
1030
1031 done:
1032 return wbc_status;
1033 }
1034
1035 /* Logon a User */
1036 wbcErr wbcLogonUser(const struct wbcLogonUserParams *params,
1037 struct wbcLogonUserInfo **info,
1038 struct wbcAuthErrorInfo **error,
1039 struct wbcUserPasswordPolicyInfo **policy)
1040 {
1041 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
1042 struct winbindd_request request;
1043 struct winbindd_response response;
1044 uint32_t i;
1045
1046 ZERO_STRUCT(request);
1047 ZERO_STRUCT(response);
1048
1049 if (info) {
1050 *info = NULL;
1051 }
1052 if (error) {
1053 *error = NULL;
1054 }
1055 if (policy) {
1056 *policy = NULL;
1057 }
1058
1059 if (!params) {
1060 wbc_status = WBC_ERR_INVALID_PARAM;
1061 BAIL_ON_WBC_ERROR(wbc_status);
1062 }
1063
1064 if (!params->username) {
1065 wbc_status = WBC_ERR_INVALID_PARAM;
1066 BAIL_ON_WBC_ERROR(wbc_status);
1067 }
1068
1069 if ((params->num_blobs > 0) && (params->blobs == NULL)) {
1070 wbc_status = WBC_ERR_INVALID_PARAM;
1071 BAIL_ON_WBC_ERROR(wbc_status);
1072 }
1073 if ((params->num_blobs == 0) && (params->blobs != NULL)) {
1074 wbc_status = WBC_ERR_INVALID_PARAM;
1075 BAIL_ON_WBC_ERROR(wbc_status);
1076 }
1077
1078 /* Initialize request */
1079
1080 request.flags = WBFLAG_PAM_INFO3_TEXT |
1081 WBFLAG_PAM_USER_SESSION_KEY |
1082 WBFLAG_PAM_LMKEY;
1083
1084 if (!params->password) {
1085 wbc_status = WBC_ERR_INVALID_PARAM;
1086 BAIL_ON_WBC_ERROR(wbc_status);
1087 }
1088
1089 strncpy(request.data.auth.user,
1090 params->username,
1091 sizeof(request.data.auth.user)-1);
1092
1093 strncpy(request.data.auth.pass,
1094 params->password,
1095 sizeof(request.data.auth.pass)-1);
1096
1097 for (i=0; i<params->num_blobs; i++) {
1098
1099 if (strcasecmp(params->blobs[i].name, "krb5_cc_type") == 0) {
1100 if (params->blobs[i].blob.data) {
1101 strncpy(request.data.auth.krb5_cc_type,
1102 (const char *)params->blobs[i].blob.data,
1103 sizeof(request.data.auth.krb5_cc_type) - 1);
1104 }
1105 continue;
1106 }
1107
1108 if (strcasecmp(params->blobs[i].name, "user_uid") == 0) {
1109 if (params->blobs[i].blob.data) {
1110 memcpy(&request.data.auth.uid,
1111 params->blobs[i].blob.data,
1112 MIN(sizeof(request.data.auth.uid),
1113 params->blobs[i].blob.length));
1114 }
1115 continue;
1116 }
1117
1118 if (strcasecmp(params->blobs[i].name, "flags") == 0) {
1119 if (params->blobs[i].blob.data) {
1120 uint32_t flags;
1121 memcpy(&flags,
1122 params->blobs[i].blob.data,
1123 MIN(sizeof(flags),
1124 params->blobs[i].blob.length));
1125 request.flags |= flags;
1126 }
1127 continue;
1128 }
1129
1130 if (strcasecmp(params->blobs[i].name, "membership_of") == 0) {
1131 if (params->blobs[i].blob.data &&
1132 params->blobs[i].blob.data[0] > 0) {
1133 strncpy(request.data.auth.require_membership_of_sid,
1134 (const char *)params->blobs[i].blob.data,
1135 sizeof(request.data.auth.require_membership_of_sid) - 1);
1136 }
1137 continue;
1138 }
1139 }
1140
1141 wbc_status = wbcRequestResponse(WINBINDD_PAM_AUTH,
1142 &request,
1143 &response);
1144
1145 if (response.data.auth.nt_status != 0) {
1146 if (error) {
1147 wbc_status = wbc_create_error_info(&response,
1148 error);
1149 BAIL_ON_WBC_ERROR(wbc_status);
1150 }
1151
1152 wbc_status = WBC_ERR_AUTH_ERROR;
1153 BAIL_ON_WBC_ERROR(wbc_status);
1154 }
1155 BAIL_ON_WBC_ERROR(wbc_status);
1156
1157 if (info) {
1158 wbc_status = wbc_create_logon_info(&response,
1159 info);
1160 BAIL_ON_WBC_ERROR(wbc_status);
1161 }
1162
1163 if (policy) {
1164 wbc_status = wbc_create_password_policy_info(&response,
1165 policy);
1166 BAIL_ON_WBC_ERROR(wbc_status);
1167 }
1168
1169 done:
1170 winbindd_free_response(&response);
1171
1172 return wbc_status;
1173 }
1174
1175 static void wbcCredentialCacheInfoDestructor(void *ptr)
1176 {
1177 struct wbcCredentialCacheInfo *i =
1178 (struct wbcCredentialCacheInfo *)ptr;
1179 wbcFreeMemory(i->blobs);
1180 }
1181
1182 /* Authenticate a user with cached credentials */
1183 wbcErr wbcCredentialCache(struct wbcCredentialCacheParams *params,
1184 struct wbcCredentialCacheInfo **info,
1185 struct wbcAuthErrorInfo **error)
1186 {
1187 wbcErr status = WBC_ERR_UNKNOWN_FAILURE;
1188 struct wbcCredentialCacheInfo *result = NULL;
1189 struct winbindd_request request;
1190 struct winbindd_response response;
1191 struct wbcNamedBlob *initial_blob = NULL;
1192 struct wbcNamedBlob *challenge_blob = NULL;
1193 int i;
1194
1195 ZERO_STRUCT(request);
1196 ZERO_STRUCT(response);
1197
1198 *info = NULL;
1199
1200 if (error != NULL) {
1201 *error = NULL;
1202 }
1203 if ((params == NULL)
1204 || (params->account_name == NULL)
1205 || (params->level != WBC_CREDENTIAL_CACHE_LEVEL_NTLMSSP)) {
1206 status = WBC_ERR_INVALID_PARAM;
1207 goto fail;
1208 }
1209
1210 for (i=0; i<params->num_blobs; i++) {
1211 if (strcasecmp(params->blobs[i].name, "initial_blob") == 0) {
1212 if (initial_blob != NULL) {
1213 status = WBC_ERR_INVALID_PARAM;
1214 goto fail;
1215 }
1216 initial_blob = &params->blobs[i];
1217 continue;
1218 }
1219 if (strcasecmp(params->blobs[i].name, "challenge_blob") == 0) {
1220 if (challenge_blob != NULL) {
1221 status = WBC_ERR_INVALID_PARAM;
1222 goto fail;
1223 }
1224 challenge_blob = &params->blobs[i];
1225 continue;
1226 }
1227 }
1228
1229 if (params->domain_name != NULL) {
1230 status = wbcRequestResponse(WINBINDD_INFO, NULL, &response);
1231 if (!WBC_ERROR_IS_OK(status)) {
1232 goto fail;
1233 }
1234 snprintf(request.data.ccache_ntlm_auth.user,
1235 sizeof(request.data.ccache_ntlm_auth.user)-1,
1236 "%s%c%s", params->domain_name,
1237 response.data.info.winbind_separator,
1238 params->account_name);
1239 } else {
1240 strncpy(request.data.ccache_ntlm_auth.user,
1241 params->account_name,
1242 sizeof(request.data.ccache_ntlm_auth.user)-1);
1243 }
1244 request.data.ccache_ntlm_auth.uid = getuid();
1245
1246 request.data.ccache_ntlm_auth.initial_blob_len = 0;
1247 request.data.ccache_ntlm_auth.challenge_blob_len = 0;
1248 request.extra_len = 0;
1249
1250 if (initial_blob != NULL) {
1251 request.data.ccache_ntlm_auth.initial_blob_len =
1252 initial_blob->blob.length;
1253 request.extra_len += initial_blob->blob.length;
1254 }
1255 if (challenge_blob != NULL) {
1256 request.data.ccache_ntlm_auth.challenge_blob_len =
1257 challenge_blob->blob.length;
1258 request.extra_len += challenge_blob->blob.length;
1259 }
1260
1261 if (request.extra_len != 0) {
1262 request.extra_data.data = (char *)malloc(request.extra_len);
1263 if (request.extra_data.data == NULL) {
1264 status = WBC_ERR_NO_MEMORY;
1265 goto fail;
1266 }
1267 }
1268 if (initial_blob != NULL) {
1269 memcpy(request.extra_data.data,
1270 initial_blob->blob.data, initial_blob->blob.length);
1271 }
1272 if (challenge_blob != NULL) {
1273 memcpy(request.extra_data.data
1274 + request.data.ccache_ntlm_auth.initial_blob_len,
1275 challenge_blob->blob.data,
1276 challenge_blob->blob.length);
1277 }
1278
1279 status = wbcRequestResponse(WINBINDD_CCACHE_NTLMAUTH, &request,
1280 &response);
1281 if (!WBC_ERROR_IS_OK(status)) {
1282 goto fail;
1283 }
1284
1285 result = (struct wbcCredentialCacheInfo *)wbcAllocateMemory(
1286 1, sizeof(struct wbcCredentialCacheInfo),
1287 wbcCredentialCacheInfoDestructor);
1288 if (result == NULL) {
1289 status = WBC_ERR_NO_MEMORY;
1290 goto fail;
1291 }
1292 result->num_blobs = 0;
1293 result->blobs = NULL;
1294 status = wbcAddNamedBlob(&result->num_blobs, &result->blobs,
1295 "auth_blob", 0,
1296 (uint8_t *)response.extra_data.data,
1297 response.data.ccache_ntlm_auth.auth_blob_len);
1298 if (!WBC_ERROR_IS_OK(status)) {
1299 goto fail;
1300 }
1301 status = wbcAddNamedBlob(
1302 &result->num_blobs, &result->blobs, "session_key", 0,
1303 response.data.ccache_ntlm_auth.session_key,
1304 sizeof(response.data.ccache_ntlm_auth.session_key));
1305 if (!WBC_ERROR_IS_OK(status)) {
1306 goto fail;
1307 }
1308
1309 *info = result;
1310 result = NULL;
1311 status = WBC_ERR_SUCCESS;
1312 fail:
1313 free(request.extra_data.data);
1314 winbindd_free_response(&response);
1315 wbcFreeMemory(result);
1316 return status;
1317 }
1318
1319 /* Authenticate a user with cached credentials */
1320 wbcErr wbcCredentialSave(const char *user, const char *password)
1321 {
1322 struct winbindd_request request;
1323 struct winbindd_response response;
1324
1325 ZERO_STRUCT(request);
1326 ZERO_STRUCT(response);
1327
1328 strncpy(request.data.ccache_save.user, user,
1329 sizeof(request.data.ccache_save.user)-1);
1330 strncpy(request.data.ccache_save.pass, password,
1331 sizeof(request.data.ccache_save.pass)-1);
1332 request.data.ccache_save.uid = getuid();
1333
1334 return wbcRequestResponse(WINBINDD_CCACHE_SAVE, &request, &response);
1335 }
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