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 }