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librpc/ndr: handle NOALIGN flag for relative pointers and alignment DATA_BLOBs
[Samba.git] / nsswitch / libwbclient / wbc_pam.c
blob25475ce5cf6bfe1feec74f59a8e51b864a831309
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
29 /* Authenticate a username/password pair */
30 wbcErr wbcAuthenticateUser(const char *username,
31 const char *password)
32 {
33 wbcErr wbc_status = WBC_ERR_SUCCESS;
34 struct wbcAuthUserParams params;
35
36 ZERO_STRUCT(params);
37
38 params.account_name = username;
39 params.level = WBC_AUTH_USER_LEVEL_PLAIN;
40 params.password.plaintext = password;
41
42 wbc_status = wbcAuthenticateUserEx(&params, NULL, NULL);
43 BAIL_ON_WBC_ERROR(wbc_status);
44
45 done:
46 return wbc_status;
47 }
48
49 static wbcErr wbc_create_auth_info(TALLOC_CTX *mem_ctx,
50 const struct winbindd_response *resp,
51 struct wbcAuthUserInfo **_i)
52 {
53 wbcErr wbc_status = WBC_ERR_SUCCESS;
54 struct wbcAuthUserInfo *i;
55 struct wbcDomainSid domain_sid;
56 char *p;
57 uint32_t sn = 0;
58 uint32_t j;
59
60 i = talloc(mem_ctx, struct wbcAuthUserInfo);
61 BAIL_ON_PTR_ERROR(i, wbc_status);
62
63 i->user_flags = resp->data.auth.info3.user_flgs;
64
65 i->account_name = talloc_strdup(i, resp->data.auth.info3.user_name);
66 BAIL_ON_PTR_ERROR(i->account_name, wbc_status);
67 i->user_principal= NULL;
68 i->full_name = talloc_strdup(i, resp->data.auth.info3.full_name);
69 BAIL_ON_PTR_ERROR(i->full_name, wbc_status);
70 i->domain_name = talloc_strdup(i, resp->data.auth.info3.logon_dom);
71 BAIL_ON_PTR_ERROR(i->domain_name, wbc_status);
72 i->dns_domain_name= NULL;
73
74 i->acct_flags = resp->data.auth.info3.acct_flags;
75 memcpy(i->user_session_key,
76 resp->data.auth.user_session_key,
77 sizeof(i->user_session_key));
78 memcpy(i->lm_session_key,
79 resp->data.auth.first_8_lm_hash,
80 sizeof(i->lm_session_key));
81
82 i->logon_count = resp->data.auth.info3.logon_count;
83 i->bad_password_count = resp->data.auth.info3.bad_pw_count;
84
85 i->logon_time = resp->data.auth.info3.logon_time;
86 i->logoff_time = resp->data.auth.info3.logoff_time;
87 i->kickoff_time = resp->data.auth.info3.kickoff_time;
88 i->pass_last_set_time = resp->data.auth.info3.pass_last_set_time;
89 i->pass_can_change_time = resp->data.auth.info3.pass_can_change_time;
90 i->pass_must_change_time= resp->data.auth.info3.pass_must_change_time;
91
92 i->logon_server = talloc_strdup(i, resp->data.auth.info3.logon_srv);
93 BAIL_ON_PTR_ERROR(i->logon_server, wbc_status);
94 i->logon_script = talloc_strdup(i, resp->data.auth.info3.logon_script);
95 BAIL_ON_PTR_ERROR(i->logon_script, wbc_status);
96 i->profile_path = talloc_strdup(i, resp->data.auth.info3.profile_path);
97 BAIL_ON_PTR_ERROR(i->profile_path, wbc_status);
98 i->home_directory= talloc_strdup(i, resp->data.auth.info3.home_dir);
99 BAIL_ON_PTR_ERROR(i->home_directory, wbc_status);
100 i->home_drive = talloc_strdup(i, resp->data.auth.info3.dir_drive);
101 BAIL_ON_PTR_ERROR(i->home_drive, wbc_status);
102
103 i->num_sids = 2;
104 i->num_sids += resp->data.auth.info3.num_groups;
105 i->num_sids += resp->data.auth.info3.num_other_sids;
106
107 i->sids = talloc_array(i, struct wbcSidWithAttr, i->num_sids);
108 BAIL_ON_PTR_ERROR(i->sids, wbc_status);
109
110 wbc_status = wbcStringToSid(resp->data.auth.info3.dom_sid,
111 &domain_sid);
112 BAIL_ON_WBC_ERROR(wbc_status);
113
114 #define _SID_COMPOSE(s, d, r, a) { \
115 (s).sid = d; \
116 if ((s).sid.num_auths < WBC_MAXSUBAUTHS) { \
117 (s).sid.sub_auths[(s).sid.num_auths++] = r; \
118 } else { \
119 wbc_status = WBC_ERR_INVALID_SID; \
120 BAIL_ON_WBC_ERROR(wbc_status); \
121 } \
122 (s).attributes = a; \
123 } while (0)
124
125 sn = 0;
126 _SID_COMPOSE(i->sids[sn], domain_sid,
127 resp->data.auth.info3.user_rid,
128 0);
129 sn++;
130 _SID_COMPOSE(i->sids[sn], domain_sid,
131 resp->data.auth.info3.group_rid,
132 0);
133 sn++;
134
135 p = (char *)resp->extra_data.data;
136 if (!p) {
137 wbc_status = WBC_ERR_INVALID_RESPONSE;
138 BAIL_ON_WBC_ERROR(wbc_status);
139 }
140
141 for (j=0; j < resp->data.auth.info3.num_groups; j++) {
142 uint32_t rid;
143 uint32_t attrs;
144 int ret;
145 char *s = p;
146 char *e = strchr(p, '\n');
147 if (!e) {
148 wbc_status = WBC_ERR_INVALID_RESPONSE;
149 BAIL_ON_WBC_ERROR(wbc_status);
150 }
151 e[0] = '\0';
152 p = &e[1];
153
154 ret = sscanf(s, "0x%08X:0x%08X", &rid, &attrs);
155 if (ret != 2) {
156 wbc_status = WBC_ERR_INVALID_RESPONSE;
157 BAIL_ON_WBC_ERROR(wbc_status);
158 }
159
160 _SID_COMPOSE(i->sids[sn], domain_sid,
161 rid, attrs);
162 sn++;
163 }
164
165 for (j=0; j < resp->data.auth.info3.num_other_sids; j++) {
166 uint32_t attrs;
167 int ret;
168 char *s = p;
169 char *a;
170 char *e = strchr(p, '\n');
171 if (!e) {
172 wbc_status = WBC_ERR_INVALID_RESPONSE;
173 BAIL_ON_WBC_ERROR(wbc_status);
174 }
175 e[0] = '\0';
176 p = &e[1];
177
178 e = strchr(s, ':');
179 if (!e) {
180 wbc_status = WBC_ERR_INVALID_RESPONSE;
181 BAIL_ON_WBC_ERROR(wbc_status);
182 }
183 e[0] = '\0';
184 a = &e[1];
185
186 ret = sscanf(a, "0x%08X",
187 &attrs);
188 if (ret != 1) {
189 wbc_status = WBC_ERR_INVALID_RESPONSE;
190 BAIL_ON_WBC_ERROR(wbc_status);
191 }
192
193 wbc_status = wbcStringToSid(s, &i->sids[sn].sid);
194 BAIL_ON_WBC_ERROR(wbc_status);
195
196 i->sids[sn].attributes = attrs;
197 sn++;
198 }
199
200 i->num_sids = sn;
201
202 *_i = i;
203 i = NULL;
204 done:
205 talloc_free(i);
206 return wbc_status;
207 }
208
209 static wbcErr wbc_create_error_info(TALLOC_CTX *mem_ctx,
210 const struct winbindd_response *resp,
211 struct wbcAuthErrorInfo **_e)
212 {
213 wbcErr wbc_status = WBC_ERR_SUCCESS;
214 struct wbcAuthErrorInfo *e;
215
216 e = talloc(mem_ctx, struct wbcAuthErrorInfo);
217 BAIL_ON_PTR_ERROR(e, wbc_status);
218
219 e->nt_status = resp->data.auth.nt_status;
220 e->pam_error = resp->data.auth.pam_error;
221 e->nt_string = talloc_strdup(e, resp->data.auth.nt_status_string);
222 BAIL_ON_PTR_ERROR(e->nt_string, wbc_status);
223
224 e->display_string = talloc_strdup(e, resp->data.auth.error_string);
225 BAIL_ON_PTR_ERROR(e->display_string, wbc_status);
226
227 *_e = e;
228 e = NULL;
229
230 done:
231 talloc_free(e);
232 return wbc_status;
233 }
234
235 static wbcErr wbc_create_password_policy_info(TALLOC_CTX *mem_ctx,
236 const struct winbindd_response *resp,
237 struct wbcUserPasswordPolicyInfo **_i)
238 {
239 wbcErr wbc_status = WBC_ERR_SUCCESS;
240 struct wbcUserPasswordPolicyInfo *i;
241
242 i = talloc(mem_ctx, struct wbcUserPasswordPolicyInfo);
243 BAIL_ON_PTR_ERROR(i, wbc_status);
244
245 i->min_passwordage = resp->data.auth.policy.min_passwordage;
246 i->min_length_password = resp->data.auth.policy.min_length_password;
247 i->password_history = resp->data.auth.policy.password_history;
248 i->password_properties = resp->data.auth.policy.password_properties;
249 i->expire = resp->data.auth.policy.expire;
250
251 *_i = i;
252 i = NULL;
253
254 done:
255 talloc_free(i);
256 return wbc_status;
257 }
258
259 static wbcErr wbc_create_logon_info(TALLOC_CTX *mem_ctx,
260 struct winbindd_response *resp,
261 struct wbcLogonUserInfo **_i)
262 {
263 wbcErr wbc_status = WBC_ERR_SUCCESS;
264 struct wbcLogonUserInfo *i;
265
266 i = talloc_zero(mem_ctx, struct wbcLogonUserInfo);
267 BAIL_ON_PTR_ERROR(i, wbc_status);
268
269 wbc_status = wbc_create_auth_info(i, resp, &i->info);
270 BAIL_ON_WBC_ERROR(wbc_status);
271
272 if (resp->data.auth.krb5ccname &&
273 strlen(resp->data.auth.krb5ccname)) {
274 wbc_status = wbcAddNamedBlob(&i->num_blobs,
275 &i->blobs,
276 "krb5ccname",
277 0,
278 (uint8_t *)resp->data.auth.krb5ccname,
279 strlen(resp->data.auth.krb5ccname)+1);
280 BAIL_ON_WBC_ERROR(wbc_status);
281 }
282
283 if (resp->data.auth.unix_username &&
284 strlen(resp->data.auth.unix_username)) {
285 wbc_status = wbcAddNamedBlob(&i->num_blobs,
286 &i->blobs,
287 "unix_username",
288 0,
289 (uint8_t *)resp->data.auth.unix_username,
290 strlen(resp->data.auth.unix_username)+1);
291 BAIL_ON_WBC_ERROR(wbc_status);
292 }
293
294 *_i = i;
295 i = NULL;
296 done:
297 if (!WBC_ERROR_IS_OK(wbc_status) && i) {
298 wbcFreeMemory(i->blobs);
299 }
300
301 talloc_free(i);
302 return wbc_status;
303 }
304
305 /* Authenticate with more detailed information */
306 wbcErr wbcAuthenticateUserEx(const struct wbcAuthUserParams *params,
307 struct wbcAuthUserInfo **info,
308 struct wbcAuthErrorInfo **error)
309 {
310 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
311 int cmd = 0;
312 struct winbindd_request request;
313 struct winbindd_response response;
314
315 ZERO_STRUCT(request);
316 ZERO_STRUCT(response);
317
318 if (error) {
319 *error = NULL;
320 }
321
322 if (!params) {
323 wbc_status = WBC_ERR_INVALID_PARAM;
324 BAIL_ON_WBC_ERROR(wbc_status);
325 }
326
327 if (!params->account_name) {
328 wbc_status = WBC_ERR_INVALID_PARAM;
329 BAIL_ON_WBC_ERROR(wbc_status);
330 }
331
332 /* Initialize request */
333
334 switch (params->level) {
335 case WBC_AUTH_USER_LEVEL_PLAIN:
336 cmd = WINBINDD_PAM_AUTH;
337 request.flags = WBFLAG_PAM_INFO3_TEXT |
338 WBFLAG_PAM_USER_SESSION_KEY |
339 WBFLAG_PAM_LMKEY;
340
341 if (!params->password.plaintext) {
342 wbc_status = WBC_ERR_INVALID_PARAM;
343 BAIL_ON_WBC_ERROR(wbc_status);
344 }
345
346 if (params->domain_name && params->domain_name[0]) {
347 /* We need to get the winbind separator :-( */
348 struct winbindd_response sep_response;
349
350 ZERO_STRUCT(sep_response);
351
352 wbc_status = wbcRequestResponse(WINBINDD_INFO,
353 NULL, &sep_response);
354 BAIL_ON_WBC_ERROR(wbc_status);
355
356 snprintf(request.data.auth.user,
357 sizeof(request.data.auth.user)-1,
358 "%s%c%s",
359 params->domain_name,
360 sep_response.data.info.winbind_separator,
361 params->account_name);
362 } else {
363 strncpy(request.data.auth.user,
364 params->account_name,
365 sizeof(request.data.auth.user)-1);
366 }
367
368 strncpy(request.data.auth.pass,
369 params->password.plaintext,
370 sizeof(request.data.auth.pass)-1);
371 break;
372
373 case WBC_AUTH_USER_LEVEL_HASH:
374 wbc_status = WBC_ERR_NOT_IMPLEMENTED;
375 BAIL_ON_WBC_ERROR(wbc_status);
376 break;
377
378 case WBC_AUTH_USER_LEVEL_RESPONSE:
379 cmd = WINBINDD_PAM_AUTH_CRAP;
380 request.flags = WBFLAG_PAM_INFO3_TEXT |
381 WBFLAG_PAM_USER_SESSION_KEY |
382 WBFLAG_PAM_LMKEY;
383
384 if (params->password.response.lm_length &&
385 !params->password.response.lm_data) {
386 wbc_status = WBC_ERR_INVALID_PARAM;
387 BAIL_ON_WBC_ERROR(wbc_status);
388 }
389 if (params->password.response.lm_length == 0 &&
390 params->password.response.lm_data) {
391 wbc_status = WBC_ERR_INVALID_PARAM;
392 BAIL_ON_WBC_ERROR(wbc_status);
393 }
394
395 if (params->password.response.nt_length &&
396 !params->password.response.nt_data) {
397 wbc_status = WBC_ERR_INVALID_PARAM;
398 BAIL_ON_WBC_ERROR(wbc_status);
399 }
400 if (params->password.response.nt_length == 0&&
401 params->password.response.nt_data) {
402 wbc_status = WBC_ERR_INVALID_PARAM;
403 BAIL_ON_WBC_ERROR(wbc_status);
404 }
405
406 strncpy(request.data.auth_crap.user,
407 params->account_name,
408 sizeof(request.data.auth_crap.user)-1);
409 if (params->domain_name) {
410 strncpy(request.data.auth_crap.domain,
411 params->domain_name,
412 sizeof(request.data.auth_crap.domain)-1);
413 }
414 if (params->workstation_name) {
415 strncpy(request.data.auth_crap.workstation,
416 params->workstation_name,
417 sizeof(request.data.auth_crap.workstation)-1);
418 }
419
420 request.data.auth_crap.logon_parameters =
421 params->parameter_control;
422
423 memcpy(request.data.auth_crap.chal,
424 params->password.response.challenge,
425 sizeof(request.data.auth_crap.chal));
426
427 request.data.auth_crap.lm_resp_len =
428 MIN(params->password.response.lm_length,
429 sizeof(request.data.auth_crap.lm_resp));
430 if (params->password.response.lm_data) {
431 memcpy(request.data.auth_crap.lm_resp,
432 params->password.response.lm_data,
433 request.data.auth_crap.lm_resp_len);
434 }
435 request.data.auth_crap.nt_resp_len = params->password.response.nt_length;
436 if (params->password.response.nt_length > sizeof(request.data.auth_crap.nt_resp)) {
437 request.flags |= WBFLAG_BIG_NTLMV2_BLOB;
438 request.extra_len = params->password.response.nt_length;
439 request.extra_data.data = talloc_zero_array(NULL, char, request.extra_len);
440 if (request.extra_data.data == NULL) {
441 wbc_status = WBC_ERR_NO_MEMORY;
442 BAIL_ON_WBC_ERROR(wbc_status);
443 }
444 memcpy(request.extra_data.data,
445 params->password.response.nt_data,
446 request.data.auth_crap.nt_resp_len);
447 } else if (params->password.response.nt_data) {
448 memcpy(request.data.auth_crap.nt_resp,
449 params->password.response.nt_data,
450 request.data.auth_crap.nt_resp_len);
451 }
452 break;
453 default:
454 break;
455 }
456
457 if (cmd == 0) {
458 wbc_status = WBC_ERR_INVALID_PARAM;
459 BAIL_ON_WBC_ERROR(wbc_status);
460 }
461
462 if (params->flags) {
463 request.flags |= params->flags;
464 }
465
466 if (cmd == WINBINDD_PAM_AUTH_CRAP) {
467 wbc_status = wbcRequestResponsePriv(cmd, &request, &response);
468 } else {
469 wbc_status = wbcRequestResponse(cmd, &request, &response);
470 }
471 if (response.data.auth.nt_status != 0) {
472 if (error) {
473 wbc_status = wbc_create_error_info(NULL,
474 &response,
475 error);
476 BAIL_ON_WBC_ERROR(wbc_status);
477 }
478
479 wbc_status = WBC_ERR_AUTH_ERROR;
480 BAIL_ON_WBC_ERROR(wbc_status);
481 }
482 BAIL_ON_WBC_ERROR(wbc_status);
483
484 if (info) {
485 wbc_status = wbc_create_auth_info(NULL,
486 &response,
487 info);
488 BAIL_ON_WBC_ERROR(wbc_status);
489 }
490
491 done:
492 if (response.extra_data.data)
493 free(response.extra_data.data);
494
495 talloc_free(request.extra_data.data);
496
497 return wbc_status;
498 }
499
500 /* Trigger a verification of the trust credentials of a specific domain */
501 wbcErr wbcCheckTrustCredentials(const char *domain,
502 struct wbcAuthErrorInfo **error)
503 {
504 struct winbindd_request request;
505 struct winbindd_response response;
506 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
507
508 ZERO_STRUCT(request);
509 ZERO_STRUCT(response);
510
511 if (domain) {
512 strncpy(request.domain_name, domain,
513 sizeof(request.domain_name)-1);
514 }
515
516 /* Send request */
517
518 wbc_status = wbcRequestResponsePriv(WINBINDD_CHECK_MACHACC,
519 &request, &response);
520 if (response.data.auth.nt_status != 0) {
521 if (error) {
522 wbc_status = wbc_create_error_info(NULL,
523 &response,
524 error);
525 BAIL_ON_WBC_ERROR(wbc_status);
526 }
527
528 wbc_status = WBC_ERR_AUTH_ERROR;
529 BAIL_ON_WBC_ERROR(wbc_status);
530 }
531 BAIL_ON_WBC_ERROR(wbc_status);
532
533 done:
534 return wbc_status;
535 }
536
537 /* Trigger a change of the trust credentials for a specific domain */
538 wbcErr wbcChangeTrustCredentials(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_CHANGE_MACHACC,
556 &request, &response);
557 if (response.data.auth.nt_status != 0) {
558 if (error) {
559 wbc_status = wbc_create_error_info(NULL,
560 &response,
561 error);
562 BAIL_ON_WBC_ERROR(wbc_status);
563 }
564
565 wbc_status = WBC_ERR_AUTH_ERROR;
566 BAIL_ON_WBC_ERROR(wbc_status);
567 }
568 BAIL_ON_WBC_ERROR(wbc_status);
569
570 done:
571 return wbc_status;
572 }
573
574 /*
575 * Trigger a no-op NETLOGON call. Lightweight version of
576 * wbcCheckTrustCredentials
577 */
578 wbcErr wbcPingDc(const char *domain, struct wbcAuthErrorInfo **error)
579 {
580 struct winbindd_request request;
581 struct winbindd_response response;
582 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
583
584 if (domain) {
585 /*
586 * the current protocol doesn't support
587 * specifying a domain
588 */
589 wbc_status = WBC_ERR_NOT_IMPLEMENTED;
590 BAIL_ON_WBC_ERROR(wbc_status);
591 }
592
593 ZERO_STRUCT(request);
594 ZERO_STRUCT(response);
595
596 /* Send request */
597
598 wbc_status = wbcRequestResponse(WINBINDD_PING_DC,
599 &request,
600 &response);
601 if (response.data.auth.nt_status != 0) {
602 if (error) {
603 wbc_status = wbc_create_error_info(NULL,
604 &response,
605 error);
606 BAIL_ON_WBC_ERROR(wbc_status);
607 }
608
609 wbc_status = WBC_ERR_AUTH_ERROR;
610 BAIL_ON_WBC_ERROR(wbc_status);
611 }
612 BAIL_ON_WBC_ERROR(wbc_status);
613
614 done:
615 return wbc_status;
616 }
617
618 /* Trigger an extended logoff notification to Winbind for a specific user */
619 wbcErr wbcLogoffUserEx(const struct wbcLogoffUserParams *params,
620 struct wbcAuthErrorInfo **error)
621 {
622 struct winbindd_request request;
623 struct winbindd_response response;
624 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
625 int i;
626
627 /* validate input */
628
629 if (!params || !params->username) {
630 wbc_status = WBC_ERR_INVALID_PARAM;
631 BAIL_ON_WBC_ERROR(wbc_status);
632 }
633
634 if ((params->num_blobs > 0) && (params->blobs == NULL)) {
635 wbc_status = WBC_ERR_INVALID_PARAM;
636 BAIL_ON_WBC_ERROR(wbc_status);
637 }
638 if ((params->num_blobs == 0) && (params->blobs != NULL)) {
639 wbc_status = WBC_ERR_INVALID_PARAM;
640 BAIL_ON_WBC_ERROR(wbc_status);
641 }
642
643 ZERO_STRUCT(request);
644 ZERO_STRUCT(response);
645
646 strncpy(request.data.logoff.user, params->username,
647 sizeof(request.data.logoff.user)-1);
648
649 for (i=0; i<params->num_blobs; i++) {
650
651 if (strcasecmp(params->blobs[i].name, "ccfilename") == 0) {
652 if (params->blobs[i].blob.data) {
653 strncpy(request.data.logoff.krb5ccname,
654 (const char *)params->blobs[i].blob.data,
655 sizeof(request.data.logoff.krb5ccname) - 1);
656 }
657 continue;
658 }
659
660 if (strcasecmp(params->blobs[i].name, "user_uid") == 0) {
661 if (params->blobs[i].blob.data) {
662 memcpy(&request.data.logoff.uid,
663 params->blobs[i].blob.data,
664 MIN(params->blobs[i].blob.length,
665 sizeof(request.data.logoff.uid)));
666 }
667 continue;
668 }
669
670 if (strcasecmp(params->blobs[i].name, "flags") == 0) {
671 if (params->blobs[i].blob.data) {
672 memcpy(&request.flags,
673 params->blobs[i].blob.data,
674 MIN(params->blobs[i].blob.length,
675 sizeof(request.flags)));
676 }
677 continue;
678 }
679 }
680
681 /* Send request */
682
683 wbc_status = wbcRequestResponse(WINBINDD_PAM_LOGOFF,
684 &request,
685 &response);
686
687 /* Take the response above and return it to the caller */
688 if (response.data.auth.nt_status != 0) {
689 if (error) {
690 wbc_status = wbc_create_error_info(NULL,
691 &response,
692 error);
693 BAIL_ON_WBC_ERROR(wbc_status);
694 }
695
696 wbc_status = WBC_ERR_AUTH_ERROR;
697 BAIL_ON_WBC_ERROR(wbc_status);
698 }
699 BAIL_ON_WBC_ERROR(wbc_status);
700
701 done:
702 return wbc_status;
703 }
704
705 /* Trigger a logoff notification to Winbind for a specific user */
706 wbcErr wbcLogoffUser(const char *username,
707 uid_t uid,
708 const char *ccfilename)
709 {
710 struct winbindd_request request;
711 struct winbindd_response response;
712 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
713
714 /* validate input */
715
716 if (!username) {
717 wbc_status = WBC_ERR_INVALID_PARAM;
718 BAIL_ON_WBC_ERROR(wbc_status);
719 }
720
721 ZERO_STRUCT(request);
722 ZERO_STRUCT(response);
723
724 strncpy(request.data.logoff.user, username,
725 sizeof(request.data.logoff.user)-1);
726 request.data.logoff.uid = uid;
727
728 if (ccfilename) {
729 strncpy(request.data.logoff.krb5ccname, ccfilename,
730 sizeof(request.data.logoff.krb5ccname)-1);
731 }
732
733 /* Send request */
734
735 wbc_status = wbcRequestResponse(WINBINDD_PAM_LOGOFF,
736 &request,
737 &response);
738
739 /* Take the response above and return it to the caller */
740
741 done:
742 return wbc_status;
743 }
744
745 /* Change a password for a user with more detailed information upon failure */
746 wbcErr wbcChangeUserPasswordEx(const struct wbcChangePasswordParams *params,
747 struct wbcAuthErrorInfo **error,
748 enum wbcPasswordChangeRejectReason *reject_reason,
749 struct wbcUserPasswordPolicyInfo **policy)
750 {
751 struct winbindd_request request;
752 struct winbindd_response response;
753 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
754 int cmd = 0;
755
756 /* validate input */
757
758 if (!params->account_name) {
759 wbc_status = WBC_ERR_INVALID_PARAM;
760 BAIL_ON_WBC_ERROR(wbc_status);
761 }
762
763 if (error) {
764 *error = NULL;
765 }
766
767 if (policy) {
768 *policy = NULL;
769 }
770
771 if (reject_reason) {
772 *reject_reason = -1;
773 }
774
775 ZERO_STRUCT(request);
776 ZERO_STRUCT(response);
777
778 switch (params->level) {
779 case WBC_CHANGE_PASSWORD_LEVEL_PLAIN:
780 cmd = WINBINDD_PAM_CHAUTHTOK;
781
782 if (!params->account_name) {
783 wbc_status = WBC_ERR_INVALID_PARAM;
784 BAIL_ON_WBC_ERROR(wbc_status);
785 }
786
787 strncpy(request.data.chauthtok.user, params->account_name,
788 sizeof(request.data.chauthtok.user) - 1);
789
790 if (params->old_password.plaintext) {
791 strncpy(request.data.chauthtok.oldpass,
792 params->old_password.plaintext,
793 sizeof(request.data.chauthtok.oldpass) - 1);
794 }
795
796 if (params->new_password.plaintext) {
797 strncpy(request.data.chauthtok.newpass,
798 params->new_password.plaintext,
799 sizeof(request.data.chauthtok.newpass) - 1);
800 }
801 break;
802
803 case WBC_CHANGE_PASSWORD_LEVEL_RESPONSE:
804 cmd = WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP;
805
806 if (!params->account_name || !params->domain_name) {
807 wbc_status = WBC_ERR_INVALID_PARAM;
808 BAIL_ON_WBC_ERROR(wbc_status);
809 }
810
811 if (params->old_password.response.old_lm_hash_enc_length &&
812 !params->old_password.response.old_lm_hash_enc_data) {
813 wbc_status = WBC_ERR_INVALID_PARAM;
814 BAIL_ON_WBC_ERROR(wbc_status);
815 }
816
817 if (params->old_password.response.old_lm_hash_enc_length == 0 &&
818 params->old_password.response.old_lm_hash_enc_data) {
819 wbc_status = WBC_ERR_INVALID_PARAM;
820 BAIL_ON_WBC_ERROR(wbc_status);
821 }
822
823 if (params->old_password.response.old_nt_hash_enc_length &&
824 !params->old_password.response.old_nt_hash_enc_data) {
825 wbc_status = WBC_ERR_INVALID_PARAM;
826 BAIL_ON_WBC_ERROR(wbc_status);
827 }
828
829 if (params->old_password.response.old_nt_hash_enc_length == 0 &&
830 params->old_password.response.old_nt_hash_enc_data) {
831 wbc_status = WBC_ERR_INVALID_PARAM;
832 BAIL_ON_WBC_ERROR(wbc_status);
833 }
834
835 if (params->new_password.response.lm_length &&
836 !params->new_password.response.lm_data) {
837 wbc_status = WBC_ERR_INVALID_PARAM;
838 BAIL_ON_WBC_ERROR(wbc_status);
839 }
840
841 if (params->new_password.response.lm_length == 0 &&
842 params->new_password.response.lm_data) {
843 wbc_status = WBC_ERR_INVALID_PARAM;
844 BAIL_ON_WBC_ERROR(wbc_status);
845 }
846
847 if (params->new_password.response.nt_length &&
848 !params->new_password.response.nt_data) {
849 wbc_status = WBC_ERR_INVALID_PARAM;
850 BAIL_ON_WBC_ERROR(wbc_status);
851 }
852
853 if (params->new_password.response.nt_length == 0 &&
854 params->new_password.response.nt_data) {
855 wbc_status = WBC_ERR_INVALID_PARAM;
856 BAIL_ON_WBC_ERROR(wbc_status);
857 }
858
859 strncpy(request.data.chng_pswd_auth_crap.user,
860 params->account_name,
861 sizeof(request.data.chng_pswd_auth_crap.user) - 1);
862
863 strncpy(request.data.chng_pswd_auth_crap.domain,
864 params->domain_name,
865 sizeof(request.data.chng_pswd_auth_crap.domain) - 1);
866
867 if (params->new_password.response.nt_data) {
868 memcpy(request.data.chng_pswd_auth_crap.new_nt_pswd,
869 params->new_password.response.nt_data,
870 request.data.chng_pswd_auth_crap.new_nt_pswd_len);
871 request.data.chng_pswd_auth_crap.new_nt_pswd_len =
872 params->new_password.response.nt_length;
873 }
874
875 if (params->new_password.response.lm_data) {
876 memcpy(request.data.chng_pswd_auth_crap.new_lm_pswd,
877 params->new_password.response.lm_data,
878 request.data.chng_pswd_auth_crap.new_lm_pswd_len);
879 request.data.chng_pswd_auth_crap.new_lm_pswd_len =
880 params->new_password.response.lm_length;
881 }
882
883 if (params->old_password.response.old_nt_hash_enc_data) {
884 memcpy(request.data.chng_pswd_auth_crap.old_nt_hash_enc,
885 params->old_password.response.old_nt_hash_enc_data,
886 request.data.chng_pswd_auth_crap.old_nt_hash_enc_len);
887 request.data.chng_pswd_auth_crap.old_nt_hash_enc_len =
888 params->old_password.response.old_nt_hash_enc_length;
889 }
890
891 if (params->old_password.response.old_lm_hash_enc_data) {
892 memcpy(request.data.chng_pswd_auth_crap.old_lm_hash_enc,
893 params->old_password.response.old_lm_hash_enc_data,
894 request.data.chng_pswd_auth_crap.old_lm_hash_enc_len);
895 request.data.chng_pswd_auth_crap.old_lm_hash_enc_len =
896 params->old_password.response.old_lm_hash_enc_length;
897 }
898
899 break;
900 default:
901 wbc_status = WBC_ERR_INVALID_PARAM;
902 BAIL_ON_WBC_ERROR(wbc_status);
903 break;
904 }
905
906 /* Send request */
907
908 wbc_status = wbcRequestResponse(cmd,
909 &request,
910 &response);
911 if (WBC_ERROR_IS_OK(wbc_status)) {
912 goto done;
913 }
914
915 /* Take the response above and return it to the caller */
916
917 if (response.data.auth.nt_status != 0) {
918 if (error) {
919 wbc_status = wbc_create_error_info(NULL,
920 &response,
921 error);
922 BAIL_ON_WBC_ERROR(wbc_status);
923 }
924
925 }
926
927 if (policy) {
928 wbc_status = wbc_create_password_policy_info(NULL,
929 &response,
930 policy);
931 BAIL_ON_WBC_ERROR(wbc_status);
932 }
933
934 if (reject_reason) {
935 *reject_reason = response.data.auth.reject_reason;
936 }
937
938 wbc_status = WBC_ERR_PWD_CHANGE_FAILED;
939 BAIL_ON_WBC_ERROR(wbc_status);
940
941 done:
942 return wbc_status;
943 }
944
945 /* Change a password for a user */
946 wbcErr wbcChangeUserPassword(const char *username,
947 const char *old_password,
948 const char *new_password)
949 {
950 wbcErr wbc_status = WBC_ERR_SUCCESS;
951 struct wbcChangePasswordParams params;
952
953 ZERO_STRUCT(params);
954
955 params.account_name = username;
956 params.level = WBC_CHANGE_PASSWORD_LEVEL_PLAIN;
957 params.old_password.plaintext = old_password;
958 params.new_password.plaintext = new_password;
959
960 wbc_status = wbcChangeUserPasswordEx(&params,
961 NULL,
962 NULL,
963 NULL);
964 BAIL_ON_WBC_ERROR(wbc_status);
965
966 done:
967 return wbc_status;
968 }
969
970 /* Logon a User */
971 wbcErr wbcLogonUser(const struct wbcLogonUserParams *params,
972 struct wbcLogonUserInfo **info,
973 struct wbcAuthErrorInfo **error,
974 struct wbcUserPasswordPolicyInfo **policy)
975 {
976 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
977 int cmd = 0;
978 struct winbindd_request request;
979 struct winbindd_response response;
980 uint32_t i;
981
982 ZERO_STRUCT(request);
983 ZERO_STRUCT(response);
984
985 if (info) {
986 *info = NULL;
987 }
988 if (error) {
989 *error = NULL;
990 }
991 if (policy) {
992 *policy = NULL;
993 }
994
995 if (!params) {
996 wbc_status = WBC_ERR_INVALID_PARAM;
997 BAIL_ON_WBC_ERROR(wbc_status);
998 }
999
1000 if (!params->username) {
1001 wbc_status = WBC_ERR_INVALID_PARAM;
1002 BAIL_ON_WBC_ERROR(wbc_status);
1003 }
1004
1005 if ((params->num_blobs > 0) && (params->blobs == NULL)) {
1006 wbc_status = WBC_ERR_INVALID_PARAM;
1007 BAIL_ON_WBC_ERROR(wbc_status);
1008 }
1009 if ((params->num_blobs == 0) && (params->blobs != NULL)) {
1010 wbc_status = WBC_ERR_INVALID_PARAM;
1011 BAIL_ON_WBC_ERROR(wbc_status);
1012 }
1013
1014 /* Initialize request */
1015
1016 cmd = WINBINDD_PAM_AUTH;
1017 request.flags = WBFLAG_PAM_INFO3_TEXT |
1018 WBFLAG_PAM_USER_SESSION_KEY |
1019 WBFLAG_PAM_LMKEY;
1020
1021 if (!params->password) {
1022 wbc_status = WBC_ERR_INVALID_PARAM;
1023 BAIL_ON_WBC_ERROR(wbc_status);
1024 }
1025
1026 strncpy(request.data.auth.user,
1027 params->username,
1028 sizeof(request.data.auth.user)-1);
1029
1030 strncpy(request.data.auth.pass,
1031 params->password,
1032 sizeof(request.data.auth.pass)-1);
1033
1034 for (i=0; i<params->num_blobs; i++) {
1035
1036 if (strcasecmp(params->blobs[i].name, "krb5_cc_type") == 0) {
1037 if (params->blobs[i].blob.data) {
1038 strncpy(request.data.auth.krb5_cc_type,
1039 (const char *)params->blobs[i].blob.data,
1040 sizeof(request.data.auth.krb5_cc_type) - 1);
1041 }
1042 continue;
1043 }
1044
1045 if (strcasecmp(params->blobs[i].name, "user_uid") == 0) {
1046 if (params->blobs[i].blob.data) {
1047 memcpy(&request.data.auth.uid,
1048 params->blobs[i].blob.data,
1049 MIN(sizeof(request.data.auth.uid),
1050 params->blobs[i].blob.length));
1051 }
1052 continue;
1053 }
1054
1055 if (strcasecmp(params->blobs[i].name, "flags") == 0) {
1056 if (params->blobs[i].blob.data) {
1057 uint32_t flags;
1058 memcpy(&flags,
1059 params->blobs[i].blob.data,
1060 MIN(sizeof(flags),
1061 params->blobs[i].blob.length));
1062 request.flags |= flags;
1063 }
1064 continue;
1065 }
1066
1067 if (strcasecmp(params->blobs[i].name, "membership_of") == 0) {
1068 if (params->blobs[i].blob.data &&
1069 params->blobs[i].blob.data[0] > 0) {
1070 strncpy(request.data.auth.require_membership_of_sid,
1071 (const char *)params->blobs[i].blob.data,
1072 sizeof(request.data.auth.require_membership_of_sid) - 1);
1073 }
1074 continue;
1075 }
1076 }
1077
1078 wbc_status = wbcRequestResponse(cmd,
1079 &request,
1080 &response);
1081
1082 if (response.data.auth.nt_status != 0) {
1083 if (error) {
1084 wbc_status = wbc_create_error_info(NULL,
1085 &response,
1086 error);
1087 BAIL_ON_WBC_ERROR(wbc_status);
1088 }
1089
1090 wbc_status = WBC_ERR_AUTH_ERROR;
1091 BAIL_ON_WBC_ERROR(wbc_status);
1092 }
1093 BAIL_ON_WBC_ERROR(wbc_status);
1094
1095 if (info) {
1096 wbc_status = wbc_create_logon_info(NULL,
1097 &response,
1098 info);
1099 BAIL_ON_WBC_ERROR(wbc_status);
1100 }
1101
1102 if (policy) {
1103 wbc_status = wbc_create_password_policy_info(NULL,
1104 &response,
1105 policy);
1106 BAIL_ON_WBC_ERROR(wbc_status);
1107 }
1108
1109 done:
1110 if (response.extra_data.data)
1111 free(response.extra_data.data);
1112
1113 return wbc_status;
1114 }
1115
1116 /* Authenticate a user with cached credentials */
1117 wbcErr wbcCredentialCache(struct wbcCredentialCacheParams *params,
1118 struct wbcCredentialCacheInfo **info,
1119 struct wbcAuthErrorInfo **error)
1120 {
1121 wbcErr status = WBC_ERR_UNKNOWN_FAILURE;
1122 struct wbcCredentialCacheInfo *result = NULL;
1123 struct winbindd_request request;
1124 struct winbindd_response response;
1125 struct wbcNamedBlob *initial_blob = NULL;
1126 struct wbcNamedBlob *challenge_blob = NULL;
1127 int i;
1128
1129 ZERO_STRUCT(request);
1130 ZERO_STRUCT(response);
1131
1132 if (info != NULL) {
1133 *info = NULL;
1134 }
1135 if (error != NULL) {
1136 *error = NULL;
1137 }
1138 if ((params == NULL)
1139 || (params->account_name == NULL)
1140 || (params->level != WBC_CREDENTIAL_CACHE_LEVEL_NTLMSSP)) {
1141 status = WBC_ERR_INVALID_PARAM;
1142 goto fail;
1143 }
1144
1145 if (params->domain_name != NULL) {
1146 status = wbcRequestResponse(WINBINDD_INFO, NULL, &response);
1147 if (!WBC_ERROR_IS_OK(status)) {
1148 goto fail;
1149 }
1150 snprintf(request.data.ccache_ntlm_auth.user,
1151 sizeof(request.data.ccache_ntlm_auth.user)-1,
1152 "%s%c%s", params->domain_name,
1153 response.data.info.winbind_separator,
1154 params->account_name);
1155 } else {
1156 strncpy(request.data.ccache_ntlm_auth.user,
1157 params->account_name,
1158 sizeof(request.data.ccache_ntlm_auth.user)-1);
1159 }
1160 request.data.ccache_ntlm_auth.uid = getuid();
1161
1162 for (i=0; i<params->num_blobs; i++) {
1163 if (strcasecmp(params->blobs[i].name, "initial_blob") == 0) {
1164 initial_blob = &params->blobs[i];
1165 break;
1166 }
1167 if (strcasecmp(params->blobs[i].name, "challenge_blob") == 0) {
1168 challenge_blob = &params->blobs[i];
1169 break;
1170 }
1171 }
1172
1173 request.data.ccache_ntlm_auth.initial_blob_len = 0;
1174 request.data.ccache_ntlm_auth.challenge_blob_len = 0;
1175 request.extra_len = 0;
1176
1177 if (initial_blob != NULL) {
1178 request.data.ccache_ntlm_auth.initial_blob_len =
1179 initial_blob->blob.length;
1180 request.extra_len += initial_blob->blob.length;
1181 }
1182 if (challenge_blob != NULL) {
1183 request.data.ccache_ntlm_auth.challenge_blob_len =
1184 challenge_blob->blob.length;
1185 request.extra_len += challenge_blob->blob.length;
1186 }
1187
1188 if (request.extra_len != 0) {
1189 request.extra_data.data = talloc_array(
1190 NULL, char, request.extra_len);
1191 if (request.extra_data.data == NULL) {
1192 status = WBC_ERR_NO_MEMORY;
1193 goto fail;
1194 }
1195 }
1196 if (initial_blob != NULL) {
1197 memcpy(request.extra_data.data,
1198 initial_blob->blob.data, initial_blob->blob.length);
1199 }
1200 if (challenge_blob != NULL) {
1201 memcpy(request.extra_data.data
1202 + request.data.ccache_ntlm_auth.initial_blob_len,
1203 challenge_blob->blob.data,
1204 challenge_blob->blob.length);
1205 }
1206
1207 status = wbcRequestResponse(WINBINDD_CCACHE_NTLMAUTH, &request,
1208 &response);
1209 if (!WBC_ERROR_IS_OK(status)) {
1210 goto fail;
1211 }
1212
1213 result = talloc(NULL, struct wbcCredentialCacheInfo);
1214 if (result == NULL) {
1215 status = WBC_ERR_NO_MEMORY;
1216 goto fail;
1217 }
1218 result->num_blobs = 0;
1219 result->blobs = talloc(result, struct wbcNamedBlob);
1220 if (result->blobs == NULL) {
1221 status = WBC_ERR_NO_MEMORY;
1222 goto fail;
1223 }
1224 status = wbcAddNamedBlob(&result->num_blobs, &result->blobs,
1225 "auth_blob", 0,
1226 (uint8_t *)response.extra_data.data,
1227 response.data.ccache_ntlm_auth.auth_blob_len);
1228 if (!WBC_ERROR_IS_OK(status)) {
1229 goto fail;
1230 }
1231 status = wbcAddNamedBlob(
1232 &result->num_blobs, &result->blobs, "session_key", 0,
1233 response.data.ccache_ntlm_auth.session_key,
1234 sizeof(response.data.ccache_ntlm_auth.session_key));
1235 if (!WBC_ERROR_IS_OK(status)) {
1236 goto fail;
1237 }
1238
1239 if (response.extra_data.data)
1240 free(response.extra_data.data);
1241 *info = result;
1242 return WBC_ERR_SUCCESS;
1243
1244 fail:
1245 TALLOC_FREE(request.extra_data.data);
1246 if (response.extra_data.data)
1247 free(response.extra_data.data);
1248 talloc_free(result);
1249 return status;
1250 }
1251
1252 /* Authenticate a user with cached credentials */
1253 wbcErr wbcCredentialSave(const char *user, const char *password)
1254 {
1255 struct winbindd_request request;
1256 struct winbindd_response response;
1257
1258 ZERO_STRUCT(request);
1259 ZERO_STRUCT(response);
1260
1261 strncpy(request.data.ccache_save.user, user,
1262 sizeof(request.data.ccache_save.user)-1);
1263 strncpy(request.data.ccache_save.pass, password,
1264 sizeof(request.data.ccache_save.pass)-1);
1265 request.data.ccache_save.uid = getuid();
1266
1267 return wbcRequestResponse(WINBINDD_CCACHE_SAVE, &request, &response);
1268 }
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