4cd212a34aefd09e4696bce7c587f3e3c73bafb8
[ira/wip.git] / nsswitch / libwbclient / wbc_pam.c
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
9    This library is free software; you can redistribute it and/or
10    modify it under the terms of the GNU Lesser General Public
11    License as published by the Free Software Foundation; either
12    version 3 of the License, or (at your option) any later version.
13
14    This library is distributed in the hope that it will be useful,
15    but WITHOUT ANY WARRANTY; without even the implied warranty of
16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17    Library General Public License for more details.
18
19    You should have received a copy of the GNU Lesser General Public License
20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
21 */
22
23 /* Required Headers */
24
25 #include "replace.h"
26 #include "libwbclient.h"
27
28 /* Authenticate a username/password pair */
29 wbcErr wbcAuthenticateUser(const char *username,
30                            const char *password)
31 {
32         wbcErr wbc_status = WBC_ERR_SUCCESS;
33         struct wbcAuthUserParams params;
34
35         ZERO_STRUCT(params);
36
37         params.account_name             = username;
38         params.level                    = WBC_AUTH_USER_LEVEL_PLAIN;
39         params.password.plaintext       = password;
40
41         wbc_status = wbcAuthenticateUserEx(&params, NULL, NULL);
42         BAIL_ON_WBC_ERROR(wbc_status);
43
44 done:
45         return wbc_status;
46 }
47
48 static wbcErr wbc_create_auth_info(TALLOC_CTX *mem_ctx,
49                                    const struct winbindd_response *resp,
50                                    struct wbcAuthUserInfo **_i)
51 {
52         wbcErr wbc_status = WBC_ERR_SUCCESS;
53         struct wbcAuthUserInfo *i;
54         struct wbcDomainSid domain_sid;
55         char *p;
56         uint32_t sn = 0;
57         uint32_t j;
58
59         i = talloc(mem_ctx, struct wbcAuthUserInfo);
60         BAIL_ON_PTR_ERROR(i, wbc_status);
61
62         i->user_flags   = resp->data.auth.info3.user_flgs;
63
64         i->account_name = talloc_strdup(i, resp->data.auth.info3.user_name);
65         BAIL_ON_PTR_ERROR(i->account_name, wbc_status);
66         i->user_principal= NULL;
67         i->full_name    = talloc_strdup(i, resp->data.auth.info3.full_name);
68         BAIL_ON_PTR_ERROR(i->full_name, wbc_status);
69         i->domain_name  = talloc_strdup(i, resp->data.auth.info3.logon_dom);
70         BAIL_ON_PTR_ERROR(i->domain_name, wbc_status);
71         i->dns_domain_name= NULL;
72
73         i->acct_flags   = resp->data.auth.info3.acct_flags;
74         memcpy(i->user_session_key,
75                resp->data.auth.user_session_key,
76                sizeof(i->user_session_key));
77         memcpy(i->lm_session_key,
78                resp->data.auth.first_8_lm_hash,
79                sizeof(i->lm_session_key));
80
81         i->logon_count          = resp->data.auth.info3.logon_count;
82         i->bad_password_count   = resp->data.auth.info3.bad_pw_count;
83
84         i->logon_time           = resp->data.auth.info3.logon_time;
85         i->logoff_time          = resp->data.auth.info3.logoff_time;
86         i->kickoff_time         = resp->data.auth.info3.kickoff_time;
87         i->pass_last_set_time   = resp->data.auth.info3.pass_last_set_time;
88         i->pass_can_change_time = resp->data.auth.info3.pass_can_change_time;
89         i->pass_must_change_time= resp->data.auth.info3.pass_must_change_time;
90
91         i->logon_server = talloc_strdup(i, resp->data.auth.info3.logon_srv);
92         BAIL_ON_PTR_ERROR(i->logon_server, wbc_status);
93         i->logon_script = talloc_strdup(i, resp->data.auth.info3.logon_script);
94         BAIL_ON_PTR_ERROR(i->logon_script, wbc_status);
95         i->profile_path = talloc_strdup(i, resp->data.auth.info3.profile_path);
96         BAIL_ON_PTR_ERROR(i->profile_path, wbc_status);
97         i->home_directory= talloc_strdup(i, resp->data.auth.info3.home_dir);
98         BAIL_ON_PTR_ERROR(i->home_directory, wbc_status);
99         i->home_drive   = talloc_strdup(i, resp->data.auth.info3.dir_drive);
100         BAIL_ON_PTR_ERROR(i->home_drive, wbc_status);
101
102         i->num_sids     = 2;
103         i->num_sids     += resp->data.auth.info3.num_groups;
104         i->num_sids     += resp->data.auth.info3.num_other_sids;
105
106         i->sids = talloc_array(i, struct wbcSidWithAttr, i->num_sids);
107         BAIL_ON_PTR_ERROR(i->sids, wbc_status);
108
109         wbc_status = wbcStringToSid(resp->data.auth.info3.dom_sid,
110                                     &domain_sid);
111         BAIL_ON_WBC_ERROR(wbc_status);
112
113 #define _SID_COMPOSE(s, d, r, a) { \
114         (s).sid = d; \
115         if ((s).sid.num_auths < WBC_MAXSUBAUTHS) { \
116                 (s).sid.sub_auths[(s).sid.num_auths++] = r; \
117         } else { \
118                 wbc_status = WBC_ERR_INVALID_SID; \
119                 BAIL_ON_WBC_ERROR(wbc_status); \
120         } \
121         (s).attributes = a; \
122 } while (0)
123
124         sn = 0;
125         _SID_COMPOSE(i->sids[sn], domain_sid,
126                      resp->data.auth.info3.user_rid,
127                      0);
128         sn++;
129         _SID_COMPOSE(i->sids[sn], domain_sid,
130                      resp->data.auth.info3.group_rid,
131                      0);
132         sn++;
133
134         p = (char *)resp->extra_data.data;
135         if (!p) {
136                 wbc_status = WBC_ERR_INVALID_RESPONSE;
137                 BAIL_ON_WBC_ERROR(wbc_status);
138         }
139
140         for (j=0; j < resp->data.auth.info3.num_groups; j++) {
141                 uint32_t rid;
142                 uint32_t attrs;
143                 int ret;
144                 char *s = p;
145                 char *e = strchr(p, '\n');
146                 if (!e) {
147                         wbc_status = WBC_ERR_INVALID_RESPONSE;
148                         BAIL_ON_WBC_ERROR(wbc_status);
149                 }
150                 e[0] = '\0';
151                 p = &e[1];
152
153                 ret = sscanf(s, "0x%08X:0x%08X", &rid, &attrs);
154                 if (ret != 2) {
155                         wbc_status = WBC_ERR_INVALID_RESPONSE;
156                         BAIL_ON_WBC_ERROR(wbc_status);
157                 }
158
159                 _SID_COMPOSE(i->sids[sn], domain_sid,
160                              rid, attrs);
161                 sn++;
162         }
163
164         for (j=0; j < resp->data.auth.info3.num_other_sids; j++) {
165                 uint32_t attrs;
166                 int ret;
167                 char *s = p;
168                 char *a;
169                 char *e = strchr(p, '\n');
170                 if (!e) {
171                         wbc_status = WBC_ERR_INVALID_RESPONSE;
172                         BAIL_ON_WBC_ERROR(wbc_status);
173                 }
174                 e[0] = '\0';
175                 p = &e[1];
176
177                 e = strchr(s, ':');
178                 if (!e) {
179                         wbc_status = WBC_ERR_INVALID_RESPONSE;
180                         BAIL_ON_WBC_ERROR(wbc_status);
181                 }
182                 e[0] = '\0';
183                 a = &e[1];
184
185                 ret = sscanf(a, "0x%08X",
186                              &attrs);
187                 if (ret != 1) {
188                         wbc_status = WBC_ERR_INVALID_RESPONSE;
189                         BAIL_ON_WBC_ERROR(wbc_status);
190                 }
191
192                 wbc_status = wbcStringToSid(s, &i->sids[sn].sid);
193                 BAIL_ON_WBC_ERROR(wbc_status);
194
195                 i->sids[sn].attributes = attrs;
196                 sn++;
197         }
198
199         i->num_sids = sn;
200
201         *_i = i;
202         i = NULL;
203 done:
204         talloc_free(i);
205         return wbc_status;
206 }
207
208 static wbcErr wbc_create_error_info(TALLOC_CTX *mem_ctx,
209                                   const struct winbindd_response *resp,
210                                   struct wbcAuthErrorInfo **_e)
211 {
212         wbcErr wbc_status = WBC_ERR_SUCCESS;
213         struct wbcAuthErrorInfo *e;
214
215         e = talloc(mem_ctx, struct wbcAuthErrorInfo);
216         BAIL_ON_PTR_ERROR(e, wbc_status);
217
218         e->nt_status = resp->data.auth.nt_status;
219         e->pam_error = resp->data.auth.pam_error;
220         e->nt_string = talloc_strdup(e, resp->data.auth.nt_status_string);
221         BAIL_ON_PTR_ERROR(e->nt_string, wbc_status);
222
223         e->display_string = talloc_strdup(e, resp->data.auth.error_string);
224         BAIL_ON_PTR_ERROR(e->display_string, wbc_status);
225
226         *_e = e;
227         e = NULL;
228
229 done:
230         talloc_free(e);
231         return wbc_status;
232 }
233
234 static wbcErr wbc_create_password_policy_info(TALLOC_CTX *mem_ctx,
235                                               const struct winbindd_response *resp,
236                                               struct wbcUserPasswordPolicyInfo **_i)
237 {
238         wbcErr wbc_status = WBC_ERR_SUCCESS;
239         struct wbcUserPasswordPolicyInfo *i;
240
241         i = talloc(mem_ctx, struct wbcUserPasswordPolicyInfo);
242         BAIL_ON_PTR_ERROR(i, wbc_status);
243
244         i->min_passwordage      = resp->data.auth.policy.min_passwordage;
245         i->min_length_password  = resp->data.auth.policy.min_length_password;
246         i->password_history     = resp->data.auth.policy.password_history;
247         i->password_properties  = resp->data.auth.policy.password_properties;
248         i->expire               = resp->data.auth.policy.expire;
249
250         *_i = i;
251         i = NULL;
252
253 done:
254         talloc_free(i);
255         return wbc_status;
256 }
257
258 static wbcErr wbc_create_logon_info(TALLOC_CTX *mem_ctx,
259                                     struct winbindd_response *resp,
260                                     struct wbcLogonUserInfo **_i)
261 {
262         wbcErr wbc_status = WBC_ERR_SUCCESS;
263         struct wbcLogonUserInfo *i;
264
265         i = talloc_zero(mem_ctx, struct wbcLogonUserInfo);
266         BAIL_ON_PTR_ERROR(i, wbc_status);
267
268         wbc_status = wbc_create_auth_info(i, resp, &i->info);
269         BAIL_ON_WBC_ERROR(wbc_status);
270
271         if (resp->data.auth.krb5ccname &&
272             strlen(resp->data.auth.krb5ccname)) {
273                 wbc_status = wbcAddNamedBlob(&i->num_blobs,
274                                              &i->blobs,
275                                              "krb5ccname",
276                                              0,
277                                              (uint8_t *)resp->data.auth.krb5ccname,
278                                              strlen(resp->data.auth.krb5ccname)+1);
279                 BAIL_ON_WBC_ERROR(wbc_status);
280         }
281
282         if (resp->data.auth.unix_username &&
283             strlen(resp->data.auth.unix_username)) {
284                 wbc_status = wbcAddNamedBlob(&i->num_blobs,
285                                              &i->blobs,
286                                              "unix_username",
287                                              0,
288                                              (uint8_t *)resp->data.auth.unix_username,
289                                              strlen(resp->data.auth.unix_username)+1);
290                 BAIL_ON_WBC_ERROR(wbc_status);
291         }
292
293         *_i = i;
294         i = NULL;
295 done:
296         if (!WBC_ERROR_IS_OK(wbc_status) && i) {
297                 wbcFreeMemory(i->blobs);
298         }
299
300         talloc_free(i);
301         return wbc_status;
302 }
303
304 /* Authenticate with more detailed information */
305 wbcErr wbcAuthenticateUserEx(const struct wbcAuthUserParams *params,
306                              struct wbcAuthUserInfo **info,
307                              struct wbcAuthErrorInfo **error)
308 {
309         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
310         int cmd = 0;
311         struct winbindd_request request;
312         struct winbindd_response response;
313
314         ZERO_STRUCT(request);
315         ZERO_STRUCT(response);
316
317         if (error) {
318                 *error = NULL;
319         }
320
321         if (!params) {
322                 wbc_status = WBC_ERR_INVALID_PARAM;
323                 BAIL_ON_WBC_ERROR(wbc_status);
324         }
325
326         if (!params->account_name) {
327                 wbc_status = WBC_ERR_INVALID_PARAM;
328                 BAIL_ON_WBC_ERROR(wbc_status);
329         }
330
331         /* Initialize request */
332
333         switch (params->level) {
334         case WBC_AUTH_USER_LEVEL_PLAIN:
335                 cmd = WINBINDD_PAM_AUTH;
336                 request.flags = WBFLAG_PAM_INFO3_TEXT |
337                                 WBFLAG_PAM_USER_SESSION_KEY |
338                                 WBFLAG_PAM_LMKEY;
339
340                 if (!params->password.plaintext) {
341                         wbc_status = WBC_ERR_INVALID_PARAM;
342                         BAIL_ON_WBC_ERROR(wbc_status);
343                 }
344
345                 if (params->domain_name && params->domain_name[0]) {
346                         /* We need to get the winbind separator :-( */
347                         struct winbindd_response sep_response;
348
349                         ZERO_STRUCT(sep_response);
350
351                         wbc_status = wbcRequestResponse(WINBINDD_INFO,
352                                                         NULL, &sep_response);
353                         BAIL_ON_WBC_ERROR(wbc_status);
354
355                         snprintf(request.data.auth.user,
356                                  sizeof(request.data.auth.user)-1,
357                                  "%s%c%s",
358                                  params->domain_name,
359                                  sep_response.data.info.winbind_separator,
360                                  params->account_name);
361                 } else {
362                         strncpy(request.data.auth.user,
363                                 params->account_name,
364                                 sizeof(request.data.auth.user)-1);
365                 }
366
367                 strncpy(request.data.auth.pass,
368                         params->password.plaintext,
369                         sizeof(request.data.auth.pass)-1);
370                 break;
371
372         case WBC_AUTH_USER_LEVEL_HASH:
373                 wbc_status = WBC_ERR_NOT_IMPLEMENTED;
374                 BAIL_ON_WBC_ERROR(wbc_status);
375                 break;
376
377         case WBC_AUTH_USER_LEVEL_RESPONSE:
378                 cmd = WINBINDD_PAM_AUTH_CRAP;
379                 request.flags = WBFLAG_PAM_INFO3_TEXT |
380                                 WBFLAG_PAM_USER_SESSION_KEY |
381                                 WBFLAG_PAM_LMKEY;
382
383                 if (params->password.response.lm_length &&
384                     !params->password.response.lm_data) {
385                         wbc_status = WBC_ERR_INVALID_PARAM;
386                         BAIL_ON_WBC_ERROR(wbc_status);
387                 }
388                 if (params->password.response.lm_length == 0 &&
389                     params->password.response.lm_data) {
390                         wbc_status = WBC_ERR_INVALID_PARAM;
391                         BAIL_ON_WBC_ERROR(wbc_status);
392                 }
393
394                 if (params->password.response.nt_length &&
395                     !params->password.response.nt_data) {
396                         wbc_status = WBC_ERR_INVALID_PARAM;
397                         BAIL_ON_WBC_ERROR(wbc_status);
398                 }
399                 if (params->password.response.nt_length == 0&&
400                     params->password.response.nt_data) {
401                         wbc_status = WBC_ERR_INVALID_PARAM;
402                         BAIL_ON_WBC_ERROR(wbc_status);
403                 }
404
405                 strncpy(request.data.auth_crap.user,
406                         params->account_name,
407                         sizeof(request.data.auth_crap.user)-1);
408                 if (params->domain_name) {
409                         strncpy(request.data.auth_crap.domain,
410                                 params->domain_name,
411                                 sizeof(request.data.auth_crap.domain)-1);
412                 }
413                 if (params->workstation_name) {
414                         strncpy(request.data.auth_crap.workstation,
415                                 params->workstation_name,
416                                 sizeof(request.data.auth_crap.workstation)-1);
417                 }
418
419                 request.data.auth_crap.logon_parameters =
420                                 params->parameter_control;
421
422                 memcpy(request.data.auth_crap.chal,
423                        params->password.response.challenge,
424                        sizeof(request.data.auth_crap.chal));
425
426                 request.data.auth_crap.lm_resp_len =
427                                 MIN(params->password.response.lm_length,
428                                     sizeof(request.data.auth_crap.lm_resp));
429                 if (params->password.response.lm_data) {
430                         memcpy(request.data.auth_crap.lm_resp,
431                                params->password.response.lm_data,
432                                request.data.auth_crap.lm_resp_len);
433                 }
434                 request.data.auth_crap.nt_resp_len = params->password.response.nt_length;
435                 if (params->password.response.nt_length > sizeof(request.data.auth_crap.nt_resp)) {
436                         request.flags |= WBFLAG_BIG_NTLMV2_BLOB;
437                         request.extra_len = params->password.response.nt_length;
438                         request.extra_data.data = talloc_zero_array(NULL, char, request.extra_len);
439                         if (request.extra_data.data == NULL) {
440                                 wbc_status = WBC_ERR_NO_MEMORY;
441                                 BAIL_ON_WBC_ERROR(wbc_status);
442                         }
443                         memcpy(request.extra_data.data,
444                                params->password.response.nt_data,
445                                request.data.auth_crap.nt_resp_len);
446                 } else if (params->password.response.nt_data) {
447                         memcpy(request.data.auth_crap.nt_resp,
448                                params->password.response.nt_data,
449                                request.data.auth_crap.nt_resp_len);
450                 }
451                 break;
452         default:
453                 break;
454         }
455
456         if (cmd == 0) {
457                 wbc_status = WBC_ERR_INVALID_PARAM;
458                 BAIL_ON_WBC_ERROR(wbc_status);
459         }
460
461         if (params->flags) {
462                 request.flags |= params->flags;
463         }
464
465         wbc_status = wbcRequestResponse(cmd,
466                                         &request,
467                                         &response);
468         if (response.data.auth.nt_status != 0) {
469                 if (error) {
470                         wbc_status = wbc_create_error_info(NULL,
471                                                            &response,
472                                                            error);
473                         BAIL_ON_WBC_ERROR(wbc_status);
474                 }
475
476                 wbc_status = WBC_ERR_AUTH_ERROR;
477                 BAIL_ON_WBC_ERROR(wbc_status);
478         }
479         BAIL_ON_WBC_ERROR(wbc_status);
480
481         if (info) {
482                 wbc_status = wbc_create_auth_info(NULL,
483                                                   &response,
484                                                   info);
485                 BAIL_ON_WBC_ERROR(wbc_status);
486         }
487
488 done:
489         if (response.extra_data.data)
490                 free(response.extra_data.data);
491
492         talloc_free(request.extra_data.data);
493
494         return wbc_status;
495 }
496
497 /* Trigger a verification of the trust credentials of a specific domain */
498 wbcErr wbcCheckTrustCredentials(const char *domain,
499                                 struct wbcAuthErrorInfo **error)
500 {
501         struct winbindd_request request;
502         struct winbindd_response response;
503         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
504
505         ZERO_STRUCT(request);
506         ZERO_STRUCT(response);
507
508         if (domain) {
509                 strncpy(request.domain_name, domain,
510                         sizeof(request.domain_name)-1);
511         }
512
513         /* Send request */
514
515         wbc_status = wbcRequestResponse(WINBINDD_CHECK_MACHACC,
516                                         &request,
517                                         &response);
518         if (response.data.auth.nt_status != 0) {
519                 if (error) {
520                         wbc_status = wbc_create_error_info(NULL,
521                                                            &response,
522                                                            error);
523                         BAIL_ON_WBC_ERROR(wbc_status);
524                 }
525
526                 wbc_status = WBC_ERR_AUTH_ERROR;
527                 BAIL_ON_WBC_ERROR(wbc_status);
528         }
529         BAIL_ON_WBC_ERROR(wbc_status);
530
531  done:
532         return wbc_status;
533 }
534
535 /* Trigger an extended logoff notification to Winbind for a specific user */
536 wbcErr wbcLogoffUserEx(const struct wbcLogoffUserParams *params,
537                        struct wbcAuthErrorInfo **error)
538 {
539         struct winbindd_request request;
540         struct winbindd_response response;
541         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
542         int i;
543
544         /* validate input */
545
546         if (!params || !params->username) {
547                 wbc_status = WBC_ERR_INVALID_PARAM;
548                 BAIL_ON_WBC_ERROR(wbc_status);
549         }
550
551         if ((params->num_blobs > 0) && (params->blobs == NULL)) {
552                 wbc_status = WBC_ERR_INVALID_PARAM;
553                 BAIL_ON_WBC_ERROR(wbc_status);
554         }
555         if ((params->num_blobs == 0) && (params->blobs != NULL)) {
556                 wbc_status = WBC_ERR_INVALID_PARAM;
557                 BAIL_ON_WBC_ERROR(wbc_status);
558         }
559
560         ZERO_STRUCT(request);
561         ZERO_STRUCT(response);
562
563         strncpy(request.data.logoff.user, params->username,
564                 sizeof(request.data.logoff.user)-1);
565
566         for (i=0; i<params->num_blobs; i++) {
567
568                 if (strcasecmp(params->blobs[i].name, "ccfilename") == 0) {
569                         if (params->blobs[i].blob.data) {
570                                 strncpy(request.data.logoff.krb5ccname,
571                                         (const char *)params->blobs[i].blob.data,
572                                         sizeof(request.data.logoff.krb5ccname) - 1);
573                         }
574                         continue;
575                 }
576
577                 if (strcasecmp(params->blobs[i].name, "user_uid") == 0) {
578                         if (params->blobs[i].blob.data) {
579                                 memcpy(&request.data.logoff.uid,
580                                         params->blobs[i].blob.data,
581                                         MIN(params->blobs[i].blob.length,
582                                             sizeof(request.data.logoff.uid)));
583                         }
584                         continue;
585                 }
586
587                 if (strcasecmp(params->blobs[i].name, "flags") == 0) {
588                         if (params->blobs[i].blob.data) {
589                                 memcpy(&request.flags,
590                                         params->blobs[i].blob.data,
591                                         MIN(params->blobs[i].blob.length,
592                                             sizeof(request.flags)));
593                         }
594                         continue;
595                 }
596         }
597
598         /* Send request */
599
600         wbc_status = wbcRequestResponse(WINBINDD_PAM_LOGOFF,
601                                         &request,
602                                         &response);
603
604         /* Take the response above and return it to the caller */
605         if (response.data.auth.nt_status != 0) {
606                 if (error) {
607                         wbc_status = wbc_create_error_info(NULL,
608                                                            &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 /* Trigger a logoff notification to Winbind for a specific user */
623 wbcErr wbcLogoffUser(const char *username,
624                      uid_t uid,
625                      const char *ccfilename)
626 {
627         struct winbindd_request request;
628         struct winbindd_response response;
629         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
630
631         /* validate input */
632
633         if (!username) {
634                 wbc_status = WBC_ERR_INVALID_PARAM;
635                 BAIL_ON_WBC_ERROR(wbc_status);
636         }
637
638         ZERO_STRUCT(request);
639         ZERO_STRUCT(response);
640
641         strncpy(request.data.logoff.user, username,
642                 sizeof(request.data.logoff.user)-1);
643         request.data.logoff.uid = uid;
644
645         if (ccfilename) {
646                 strncpy(request.data.logoff.krb5ccname, ccfilename,
647                         sizeof(request.data.logoff.krb5ccname)-1);
648         }
649
650         /* Send request */
651
652         wbc_status = wbcRequestResponse(WINBINDD_PAM_LOGOFF,
653                                         &request,
654                                         &response);
655
656         /* Take the response above and return it to the caller */
657
658  done:
659         return wbc_status;
660 }
661
662 /* Change a password for a user with more detailed information upon failure */
663 wbcErr wbcChangeUserPasswordEx(const struct wbcChangePasswordParams *params,
664                                struct wbcAuthErrorInfo **error,
665                                enum wbcPasswordChangeRejectReason *reject_reason,
666                                struct wbcUserPasswordPolicyInfo **policy)
667 {
668         struct winbindd_request request;
669         struct winbindd_response response;
670         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
671         int cmd = 0;
672
673         /* validate input */
674
675         if (!params->account_name) {
676                 wbc_status = WBC_ERR_INVALID_PARAM;
677                 BAIL_ON_WBC_ERROR(wbc_status);
678         }
679
680         if (error) {
681                 *error = NULL;
682         }
683
684         if (policy) {
685                 *policy = NULL;
686         }
687
688         if (reject_reason) {
689                 *reject_reason = -1;
690         }
691
692         ZERO_STRUCT(request);
693         ZERO_STRUCT(response);
694
695         switch (params->level) {
696         case WBC_CHANGE_PASSWORD_LEVEL_PLAIN:
697                 cmd = WINBINDD_PAM_CHAUTHTOK;
698
699                 if (!params->account_name) {
700                         wbc_status = WBC_ERR_INVALID_PARAM;
701                         BAIL_ON_WBC_ERROR(wbc_status);
702                 }
703
704                 strncpy(request.data.chauthtok.user, params->account_name,
705                         sizeof(request.data.chauthtok.user) - 1);
706
707                 if (params->old_password.plaintext) {
708                         strncpy(request.data.chauthtok.oldpass,
709                                 params->old_password.plaintext,
710                                 sizeof(request.data.chauthtok.oldpass) - 1);
711                 }
712
713                 if (params->new_password.plaintext) {
714                         strncpy(request.data.chauthtok.newpass,
715                                 params->new_password.plaintext,
716                                 sizeof(request.data.chauthtok.newpass) - 1);
717                 }
718                 break;
719
720         case WBC_CHANGE_PASSWORD_LEVEL_RESPONSE:
721                 cmd = WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP;
722
723                 if (!params->account_name || !params->domain_name) {
724                         wbc_status = WBC_ERR_INVALID_PARAM;
725                         BAIL_ON_WBC_ERROR(wbc_status);
726                 }
727
728                 if (params->old_password.response.old_lm_hash_enc_length &&
729                     !params->old_password.response.old_lm_hash_enc_data) {
730                         wbc_status = WBC_ERR_INVALID_PARAM;
731                         BAIL_ON_WBC_ERROR(wbc_status);
732                 }
733
734                 if (params->old_password.response.old_lm_hash_enc_length == 0 &&
735                     params->old_password.response.old_lm_hash_enc_data) {
736                         wbc_status = WBC_ERR_INVALID_PARAM;
737                         BAIL_ON_WBC_ERROR(wbc_status);
738                 }
739
740                 if (params->old_password.response.old_nt_hash_enc_length &&
741                     !params->old_password.response.old_nt_hash_enc_data) {
742                         wbc_status = WBC_ERR_INVALID_PARAM;
743                         BAIL_ON_WBC_ERROR(wbc_status);
744                 }
745
746                 if (params->old_password.response.old_nt_hash_enc_length == 0 &&
747                     params->old_password.response.old_nt_hash_enc_data) {
748                         wbc_status = WBC_ERR_INVALID_PARAM;
749                         BAIL_ON_WBC_ERROR(wbc_status);
750                 }
751
752                 if (params->new_password.response.lm_length &&
753                     !params->new_password.response.lm_data) {
754                         wbc_status = WBC_ERR_INVALID_PARAM;
755                         BAIL_ON_WBC_ERROR(wbc_status);
756                 }
757
758                 if (params->new_password.response.lm_length == 0 &&
759                     params->new_password.response.lm_data) {
760                         wbc_status = WBC_ERR_INVALID_PARAM;
761                         BAIL_ON_WBC_ERROR(wbc_status);
762                 }
763
764                 if (params->new_password.response.nt_length &&
765                     !params->new_password.response.nt_data) {
766                         wbc_status = WBC_ERR_INVALID_PARAM;
767                         BAIL_ON_WBC_ERROR(wbc_status);
768                 }
769
770                 if (params->new_password.response.nt_length == 0 &&
771                     params->new_password.response.nt_data) {
772                         wbc_status = WBC_ERR_INVALID_PARAM;
773                         BAIL_ON_WBC_ERROR(wbc_status);
774                 }
775
776                 strncpy(request.data.chng_pswd_auth_crap.user,
777                         params->account_name,
778                         sizeof(request.data.chng_pswd_auth_crap.user) - 1);
779
780                 strncpy(request.data.chng_pswd_auth_crap.domain,
781                         params->domain_name,
782                         sizeof(request.data.chng_pswd_auth_crap.domain) - 1);
783
784                 if (params->new_password.response.nt_data) {
785                         memcpy(request.data.chng_pswd_auth_crap.new_nt_pswd,
786                                params->new_password.response.nt_data,
787                                request.data.chng_pswd_auth_crap.new_nt_pswd_len);
788                         request.data.chng_pswd_auth_crap.new_nt_pswd_len =
789                                 params->new_password.response.nt_length;
790                 }
791
792                 if (params->new_password.response.lm_data) {
793                         memcpy(request.data.chng_pswd_auth_crap.new_lm_pswd,
794                                params->new_password.response.lm_data,
795                                request.data.chng_pswd_auth_crap.new_lm_pswd_len);
796                         request.data.chng_pswd_auth_crap.new_lm_pswd_len =
797                                 params->new_password.response.lm_length;
798                 }
799
800                 if (params->old_password.response.old_nt_hash_enc_data) {
801                         memcpy(request.data.chng_pswd_auth_crap.old_nt_hash_enc,
802                                params->old_password.response.old_nt_hash_enc_data,
803                                request.data.chng_pswd_auth_crap.old_nt_hash_enc_len);
804                         request.data.chng_pswd_auth_crap.old_nt_hash_enc_len =
805                                 params->old_password.response.old_nt_hash_enc_length;
806                 }
807
808                 if (params->old_password.response.old_lm_hash_enc_data) {
809                         memcpy(request.data.chng_pswd_auth_crap.old_lm_hash_enc,
810                                params->old_password.response.old_lm_hash_enc_data,
811                                request.data.chng_pswd_auth_crap.old_lm_hash_enc_len);
812                         request.data.chng_pswd_auth_crap.old_lm_hash_enc_len =
813                                 params->old_password.response.old_lm_hash_enc_length;
814                 }
815
816                 break;
817         default:
818                 wbc_status = WBC_ERR_INVALID_PARAM;
819                 BAIL_ON_WBC_ERROR(wbc_status);
820                 break;
821         }
822
823         /* Send request */
824
825         wbc_status = wbcRequestResponse(cmd,
826                                         &request,
827                                         &response);
828         if (WBC_ERROR_IS_OK(wbc_status)) {
829                 goto done;
830         }
831
832         /* Take the response above and return it to the caller */
833
834         if (response.data.auth.nt_status != 0) {
835                 if (error) {
836                         wbc_status = wbc_create_error_info(NULL,
837                                                            &response,
838                                                            error);
839                         BAIL_ON_WBC_ERROR(wbc_status);
840                 }
841
842         }
843
844         if (policy) {
845                 wbc_status = wbc_create_password_policy_info(NULL,
846                                                              &response,
847                                                              policy);
848                 BAIL_ON_WBC_ERROR(wbc_status);
849         }
850
851         if (reject_reason) {
852                 *reject_reason = response.data.auth.reject_reason;
853         }
854
855         wbc_status = WBC_ERR_PWD_CHANGE_FAILED;
856         BAIL_ON_WBC_ERROR(wbc_status);
857
858  done:
859         return wbc_status;
860 }
861
862 /* Change a password for a user */
863 wbcErr wbcChangeUserPassword(const char *username,
864                              const char *old_password,
865                              const char *new_password)
866 {
867         wbcErr wbc_status = WBC_ERR_SUCCESS;
868         struct wbcChangePasswordParams params;
869
870         ZERO_STRUCT(params);
871
872         params.account_name             = username;
873         params.level                    = WBC_CHANGE_PASSWORD_LEVEL_PLAIN;
874         params.old_password.plaintext   = old_password;
875         params.new_password.plaintext   = new_password;
876
877         wbc_status = wbcChangeUserPasswordEx(&params,
878                                              NULL,
879                                              NULL,
880                                              NULL);
881         BAIL_ON_WBC_ERROR(wbc_status);
882
883 done:
884         return wbc_status;
885 }
886
887 /* Logon a User */
888 wbcErr wbcLogonUser(const struct wbcLogonUserParams *params,
889                     struct wbcLogonUserInfo **info,
890                     struct wbcAuthErrorInfo **error,
891                     struct wbcUserPasswordPolicyInfo **policy)
892 {
893         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
894         int cmd = 0;
895         struct winbindd_request request;
896         struct winbindd_response response;
897         uint32_t i;
898
899         ZERO_STRUCT(request);
900         ZERO_STRUCT(response);
901
902         if (info) {
903                 *info = NULL;
904         }
905         if (error) {
906                 *error = NULL;
907         }
908         if (policy) {
909                 *policy = NULL;
910         }
911
912         if (!params) {
913                 wbc_status = WBC_ERR_INVALID_PARAM;
914                 BAIL_ON_WBC_ERROR(wbc_status);
915         }
916
917         if (!params->username) {
918                 wbc_status = WBC_ERR_INVALID_PARAM;
919                 BAIL_ON_WBC_ERROR(wbc_status);
920         }
921
922         if ((params->num_blobs > 0) && (params->blobs == NULL)) {
923                 wbc_status = WBC_ERR_INVALID_PARAM;
924                 BAIL_ON_WBC_ERROR(wbc_status);
925         }
926         if ((params->num_blobs == 0) && (params->blobs != NULL)) {
927                 wbc_status = WBC_ERR_INVALID_PARAM;
928                 BAIL_ON_WBC_ERROR(wbc_status);
929         }
930
931         /* Initialize request */
932
933         cmd = WINBINDD_PAM_AUTH;
934         request.flags = WBFLAG_PAM_INFO3_TEXT |
935                         WBFLAG_PAM_USER_SESSION_KEY |
936                         WBFLAG_PAM_LMKEY;
937
938         if (!params->password) {
939                 wbc_status = WBC_ERR_INVALID_PARAM;
940                 BAIL_ON_WBC_ERROR(wbc_status);
941         }
942
943         strncpy(request.data.auth.user,
944                 params->username,
945                 sizeof(request.data.auth.user)-1);
946
947         strncpy(request.data.auth.pass,
948                 params->password,
949                 sizeof(request.data.auth.pass)-1);
950
951         for (i=0; i<params->num_blobs; i++) {
952
953                 if (strcasecmp(params->blobs[i].name, "krb5_cc_type") == 0) {
954                         if (params->blobs[i].blob.data) {
955                                 strncpy(request.data.auth.krb5_cc_type,
956                                         (const char *)params->blobs[i].blob.data,
957                                         sizeof(request.data.auth.krb5_cc_type) - 1);
958                         }
959                         continue;
960                 }
961
962                 if (strcasecmp(params->blobs[i].name, "user_uid") == 0) {
963                         if (params->blobs[i].blob.data) {
964                                 memcpy(&request.data.auth.uid,
965                                         params->blobs[i].blob.data,
966                                         MIN(sizeof(request.data.auth.uid),
967                                             params->blobs[i].blob.length));
968                         }
969                         continue;
970                 }
971
972                 if (strcasecmp(params->blobs[i].name, "flags") == 0) {
973                         if (params->blobs[i].blob.data) {
974                                 uint32_t flags;
975                                 memcpy(&flags,
976                                         params->blobs[i].blob.data,
977                                         MIN(sizeof(flags),
978                                             params->blobs[i].blob.length));
979                                 request.flags |= flags;
980                         }
981                         continue;
982                 }
983
984                 if (strcasecmp(params->blobs[i].name, "membership_of") == 0) {
985                         if (params->blobs[i].blob.data &&
986                             params->blobs[i].blob.data[0] > 0) {
987                                 strncpy(request.data.auth.require_membership_of_sid,
988                                         (const char *)params->blobs[i].blob.data,
989                                         sizeof(request.data.auth.require_membership_of_sid) - 1);
990                         }
991                         continue;
992                 }
993         }
994
995         wbc_status = wbcRequestResponse(cmd,
996                                         &request,
997                                         &response);
998
999         if (response.data.auth.nt_status != 0) {
1000                 if (error) {
1001                         wbc_status = wbc_create_error_info(NULL,
1002                                                            &response,
1003                                                            error);
1004                         BAIL_ON_WBC_ERROR(wbc_status);
1005                 }
1006
1007                 wbc_status = WBC_ERR_AUTH_ERROR;
1008                 BAIL_ON_WBC_ERROR(wbc_status);
1009         }
1010         BAIL_ON_WBC_ERROR(wbc_status);
1011
1012         if (info) {
1013                 wbc_status = wbc_create_logon_info(NULL,
1014                                                    &response,
1015                                                    info);
1016                 BAIL_ON_WBC_ERROR(wbc_status);
1017         }
1018
1019         if (policy) {
1020                 wbc_status = wbc_create_password_policy_info(NULL,
1021                                                              &response,
1022                                                              policy);
1023                 BAIL_ON_WBC_ERROR(wbc_status);
1024         }
1025
1026 done:
1027         if (response.extra_data.data)
1028                 free(response.extra_data.data);
1029
1030         return wbc_status;
1031 }
1032
1033 /* Authenticate a user with cached credentials */
1034 wbcErr wbcCredentialCache(struct wbcCredentialCacheParams *params,
1035                           struct wbcCredentialCacheInfo **info,
1036                           struct wbcAuthErrorInfo **error)
1037 {
1038         return WBC_ERR_NOT_IMPLEMENTED;
1039 }