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 "libwbclient.h"
  26
  27 /* Authenticate a username/password pair */
  28 wbcErr wbcAuthenticateUser(const char *username,
  29                            const char *password)
  30 {
  31         wbcErr wbc_status = WBC_ERR_SUCCESS;
  32         struct wbcAuthUserParams params;
  33
  34         ZERO_STRUCT(params);
  35
  36         params.account_name             = username;
  37         params.level                    = WBC_AUTH_USER_LEVEL_PLAIN;
  38         params.password.plaintext       = password;
  39
  40         wbc_status = wbcAuthenticateUserEx(&params, NULL, NULL);
  41         BAIL_ON_WBC_ERROR(wbc_status);
  42
  43 done:
  44         return wbc_status;
  45 }
  46
  47 static wbcErr wbc_create_auth_info(TALLOC_CTX *mem_ctx,
  48                                    const struct winbindd_response *resp,
  49                                    struct wbcAuthUserInfo **_i)
  50 {
  51         wbcErr wbc_status = WBC_ERR_SUCCESS;
  52         struct wbcAuthUserInfo *i;
  53         struct wbcDomainSid domain_sid;
  54         char *p;
  55         uint32_t sn = 0;
  56         uint32_t j;
  57
  58         i = talloc(mem_ctx, struct wbcAuthUserInfo);
  59         BAIL_ON_PTR_ERROR(i, wbc_status);
  60
  61         i->user_flags   = resp->data.auth.info3.user_flgs;
  62
  63         i->account_name = talloc_strdup(i, resp->data.auth.info3.user_name);
  64         BAIL_ON_PTR_ERROR(i->account_name, wbc_status);
  65         i->user_principal= NULL;
  66         i->full_name    = talloc_strdup(i, resp->data.auth.info3.full_name);
  67         BAIL_ON_PTR_ERROR(i->full_name, wbc_status);
  68         i->domain_name  = talloc_strdup(i, resp->data.auth.info3.logon_dom);
  69         BAIL_ON_PTR_ERROR(i->domain_name, wbc_status);
  70         i->dns_domain_name= NULL;
  71
  72         i->acct_flags   = resp->data.auth.info3.acct_flags;
  73         memcpy(i->user_session_key,
  74                resp->data.auth.user_session_key,
  75                sizeof(i->user_session_key));
  76         memcpy(i->lm_session_key,
  77                resp->data.auth.first_8_lm_hash,
  78                sizeof(i->lm_session_key));
  79
  80         i->logon_count          = resp->data.auth.info3.logon_count;
  81         i->bad_password_count   = resp->data.auth.info3.bad_pw_count;
  82
  83         i->logon_time           = resp->data.auth.info3.logon_time;
  84         i->logoff_time          = resp->data.auth.info3.logoff_time;
  85         i->kickoff_time         = resp->data.auth.info3.kickoff_time;
  86         i->pass_last_set_time   = resp->data.auth.info3.pass_last_set_time;
  87         i->pass_can_change_time = resp->data.auth.info3.pass_can_change_time;
  88         i->pass_must_change_time= resp->data.auth.info3.pass_must_change_time;
  89
  90         i->logon_server = talloc_strdup(i, resp->data.auth.info3.logon_srv);
  91         BAIL_ON_PTR_ERROR(i->logon_server, wbc_status);
  92         i->logon_script = talloc_strdup(i, resp->data.auth.info3.logon_script);
  93         BAIL_ON_PTR_ERROR(i->logon_script, wbc_status);
  94         i->profile_path = talloc_strdup(i, resp->data.auth.info3.profile_path);
  95         BAIL_ON_PTR_ERROR(i->profile_path, wbc_status);
  96         i->home_directory= talloc_strdup(i, resp->data.auth.info3.home_dir);
  97         BAIL_ON_PTR_ERROR(i->home_directory, wbc_status);
  98         i->home_drive   = talloc_strdup(i, resp->data.auth.info3.dir_drive);
  99         BAIL_ON_PTR_ERROR(i->home_drive, wbc_status);
 100
 101         i->num_sids     = 2;
 102         i->num_sids     += resp->data.auth.info3.num_groups;
 103         i->num_sids     += resp->data.auth.info3.num_other_sids;
 104
 105         i->sids = talloc_array(i, struct wbcSidWithAttr, i->num_sids);
 106         BAIL_ON_PTR_ERROR(i->sids, wbc_status);
 107
 108         wbc_status = wbcStringToSid(resp->data.auth.info3.dom_sid,
 109                                     &domain_sid);
 110         BAIL_ON_WBC_ERROR(wbc_status);
 111
 112 #define _SID_COMPOSE(s, d, r, a) { \
 113         (s).sid = d; \
 114         if ((s).sid.num_auths < WBC_MAXSUBAUTHS) { \
 115                 (s).sid.sub_auths[(s).sid.num_auths++] = r; \
 116         } else { \
 117                 wbc_status = WBC_ERR_INVALID_SID; \
 118                 BAIL_ON_WBC_ERROR(wbc_status); \
 119         } \
 120         (s).attributes = a; \
 121 } while (0)
 122
 123         sn = 0;
 124         _SID_COMPOSE(i->sids[sn], domain_sid,
 125                      resp->data.auth.info3.user_rid,
 126                      0);
 127         sn++;
 128         _SID_COMPOSE(i->sids[sn], domain_sid,
 129                      resp->data.auth.info3.group_rid,
 130                      0);
 131         sn++;
 132
 133         p = (char *)resp->extra_data.data;
 134         if (!p) {
 135                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 136                 BAIL_ON_WBC_ERROR(wbc_status);
 137         }
 138
 139         for (j=0; j < resp->data.auth.info3.num_groups; j++) {
 140                 uint32_t rid;
 141                 uint32_t attrs;
 142                 int ret;
 143                 char *s = p;
 144                 char *e = strchr(p, '\n');
 145                 if (!e) {
 146                         wbc_status = WBC_ERR_INVALID_RESPONSE;
 147                         BAIL_ON_WBC_ERROR(wbc_status);
 148                 }
 149                 e[0] = '\0';
 150                 p = &e[1];
 151
 152                 ret = sscanf(s, "0x%08X:0x%08X", &rid, &attrs);
 153                 if (ret != 2) {
 154                         wbc_status = WBC_ERR_INVALID_RESPONSE;
 155                         BAIL_ON_WBC_ERROR(wbc_status);
 156                 }
 157
 158                 _SID_COMPOSE(i->sids[sn], domain_sid,
 159                              rid, attrs);
 160                 sn++;
 161         }
 162
 163         for (j=0; j < resp->data.auth.info3.num_other_sids; j++) {
 164                 uint32_t attrs;
 165                 int ret;
 166                 char *s = p;
 167                 char *a;
 168                 char *e = strchr(p, '\n');
 169                 if (!e) {
 170                         wbc_status = WBC_ERR_INVALID_RESPONSE;
 171                         BAIL_ON_WBC_ERROR(wbc_status);
 172                 }
 173                 e[0] = '\0';
 174                 p = &e[1];
 175
 176                 e = strchr(s, ':');
 177                 if (!e) {
 178                         wbc_status = WBC_ERR_INVALID_RESPONSE;
 179                         BAIL_ON_WBC_ERROR(wbc_status);
 180                 }
 181                 e[0] = '\0';
 182                 a = &e[1];
 183
 184                 ret = sscanf(a, "0x%08X",
 185                              &attrs);
 186                 if (ret != 1) {
 187                         wbc_status = WBC_ERR_INVALID_RESPONSE;
 188                         BAIL_ON_WBC_ERROR(wbc_status);
 189                 }
 190
 191                 wbc_status = wbcStringToSid(s, &i->sids[sn].sid);
 192                 BAIL_ON_WBC_ERROR(wbc_status);
 193
 194                 i->sids[sn].attributes = attrs;
 195                 sn++;
 196         }
 197
 198         i->num_sids = sn;
 199
 200         *_i = i;
 201         i = NULL;
 202 done:
 203         talloc_free(i);
 204         return wbc_status;
 205 }
 206
 207 static wbcErr wbc_create_error_info(TALLOC_CTX *mem_ctx,
 208                                   const struct winbindd_response *resp,
 209                                   struct wbcAuthErrorInfo **_e)
 210 {
 211         wbcErr wbc_status = WBC_ERR_SUCCESS;
 212         struct wbcAuthErrorInfo *e;
 213
 214         e = talloc(mem_ctx, struct wbcAuthErrorInfo);
 215         BAIL_ON_PTR_ERROR(e, wbc_status);
 216
 217         e->nt_status = resp->data.auth.nt_status;
 218         e->pam_error = resp->data.auth.pam_error;
 219         e->nt_string = talloc_strdup(e, resp->data.auth.nt_status_string);
 220         BAIL_ON_PTR_ERROR(e->nt_string, wbc_status);
 221
 222         e->display_string = talloc_strdup(e, resp->data.auth.error_string);
 223         BAIL_ON_PTR_ERROR(e->display_string, wbc_status);
 224
 225         *_e = e;
 226         e = NULL;
 227
 228 done:
 229         talloc_free(e);
 230         return wbc_status;
 231 }
 232
 233 static wbcErr wbc_create_password_policy_info(TALLOC_CTX *mem_ctx,
 234                                               const struct winbindd_response *resp,
 235                                               struct wbcUserPasswordPolicyInfo **_i)
 236 {
 237         wbcErr wbc_status = WBC_ERR_SUCCESS;
 238         struct wbcUserPasswordPolicyInfo *i;
 239
 240         i = talloc(mem_ctx, struct wbcUserPasswordPolicyInfo);
 241         BAIL_ON_PTR_ERROR(i, wbc_status);
 242
 243         i->min_passwordage      = resp->data.auth.policy.min_passwordage;
 244         i->min_length_password  = resp->data.auth.policy.min_length_password;
 245         i->password_history     = resp->data.auth.policy.password_history;
 246         i->password_properties  = resp->data.auth.policy.password_properties;
 247         i->expire               = resp->data.auth.policy.expire;
 248
 249         *_i = i;
 250         i = NULL;
 251
 252 done:
 253         talloc_free(i);
 254         return wbc_status;
 255 }
 256
 257 static wbcErr wbc_create_logon_info(TALLOC_CTX *mem_ctx,
 258                                     const struct winbindd_response *resp,
 259                                     struct wbcLogonUserInfo **_i)
 260 {
 261         wbcErr wbc_status = WBC_ERR_SUCCESS;
 262         struct wbcLogonUserInfo *i;
 263
 264         i = talloc_zero(mem_ctx, struct wbcLogonUserInfo);
 265         BAIL_ON_PTR_ERROR(i, wbc_status);
 266
 267         wbc_status = wbc_create_auth_info(i, resp, &i->info);
 268         BAIL_ON_WBC_ERROR(wbc_status);
 269
 270         if (resp->data.auth.krb5ccname) {
 271                 wbc_status = wbcAddNamedBlob(&i->num_blobs,
 272                                              &i->blobs,
 273                                              "krb5ccname",
 274                                              0,
 275                                              (uint8_t *)resp->data.auth.krb5ccname,
 276                                              strlen(resp->data.auth.krb5ccname)+1);
 277                 BAIL_ON_WBC_ERROR(wbc_status);
 278         }
 279
 280         if (resp->data.auth.unix_username) {
 281                 wbc_status = wbcAddNamedBlob(&i->num_blobs,
 282                                              &i->blobs,
 283                                              "unix_username",
 284                                              0,
 285                                              (uint8_t *)resp->data.auth.unix_username,
 286                                              strlen(resp->data.auth.unix_username)+1);
 287                 BAIL_ON_WBC_ERROR(wbc_status);
 288         }
 289
 290         *_i = i;
 291         i = NULL;
 292 done:
 293         if (!WBC_ERROR_IS_OK(wbc_status) && i) {
 294                 wbcFreeMemory(i->blobs);
 295         }
 296
 297         talloc_free(i);
 298         return wbc_status;
 299 }
 300
 301 /* Authenticate with more detailed information */
 302 wbcErr wbcAuthenticateUserEx(const struct wbcAuthUserParams *params,
 303                              struct wbcAuthUserInfo **info,
 304                              struct wbcAuthErrorInfo **error)
 305 {
 306         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 307         int cmd = 0;
 308         struct winbindd_request request;
 309         struct winbindd_response response;
 310
 311         ZERO_STRUCT(request);
 312         ZERO_STRUCT(response);
 313
 314         if (error) {
 315                 *error = NULL;
 316         }
 317
 318         if (!params) {
 319                 wbc_status = WBC_ERR_INVALID_PARAM;
 320                 BAIL_ON_WBC_ERROR(wbc_status);
 321         }
 322
 323         if (!params->account_name) {
 324                 wbc_status = WBC_ERR_INVALID_PARAM;
 325                 BAIL_ON_WBC_ERROR(wbc_status);
 326         }
 327
 328         /* Initialize request */
 329
 330         switch (params->level) {
 331         case WBC_AUTH_USER_LEVEL_PLAIN:
 332                 cmd = WINBINDD_PAM_AUTH;
 333                 request.flags = WBFLAG_PAM_INFO3_TEXT |
 334                                 WBFLAG_PAM_USER_SESSION_KEY |
 335                                 WBFLAG_PAM_LMKEY;
 336
 337                 if (!params->password.plaintext) {
 338                         wbc_status = WBC_ERR_INVALID_PARAM;
 339                         BAIL_ON_WBC_ERROR(wbc_status);
 340                 }
 341
 342                 if (params->domain_name && params->domain_name[0]) {
 343                         /* We need to get the winbind separator :-( */
 344                         struct winbindd_response sep_response;
 345
 346                         ZERO_STRUCT(sep_response);
 347
 348                         wbc_status = wbcRequestResponse(WINBINDD_INFO,
 349                                                         NULL, &sep_response);
 350                         BAIL_ON_WBC_ERROR(wbc_status);
 351
 352                         snprintf(request.data.auth.user,
 353                                  sizeof(request.data.auth.user)-1,
 354                                  "%s%c%s",
 355                                  params->domain_name,
 356                                  sep_response.data.info.winbind_separator,
 357                                  params->account_name);
 358                 } else {
 359                         strncpy(request.data.auth.user,
 360                                 params->account_name,
 361                                 sizeof(request.data.auth.user)-1);
 362                 }
 363
 364                 strncpy(request.data.auth.pass,
 365                         params->password.plaintext,
 366                         sizeof(request.data.auth.pass)-1);
 367                 break;
 368
 369         case WBC_AUTH_USER_LEVEL_HASH:
 370                 wbc_status = WBC_ERR_NOT_IMPLEMENTED;
 371                 BAIL_ON_WBC_ERROR(wbc_status);
 372                 break;
 373
 374         case WBC_AUTH_USER_LEVEL_RESPONSE:
 375                 cmd = WINBINDD_PAM_AUTH_CRAP;
 376                 request.flags = WBFLAG_PAM_INFO3_TEXT |
 377                                 WBFLAG_PAM_USER_SESSION_KEY |
 378                                 WBFLAG_PAM_LMKEY;
 379
 380                 if (params->password.response.lm_length &&
 381                     !params->password.response.lm_data) {
 382                         wbc_status = WBC_ERR_INVALID_PARAM;
 383                         BAIL_ON_WBC_ERROR(wbc_status);
 384                 }
 385                 if (params->password.response.lm_length == 0 &&
 386                     params->password.response.lm_data) {
 387                         wbc_status = WBC_ERR_INVALID_PARAM;
 388                         BAIL_ON_WBC_ERROR(wbc_status);
 389                 }
 390
 391                 if (params->password.response.nt_length &&
 392                     !params->password.response.nt_data) {
 393                         wbc_status = WBC_ERR_INVALID_PARAM;
 394                         BAIL_ON_WBC_ERROR(wbc_status);
 395                 }
 396                 if (params->password.response.nt_length == 0&&
 397                     params->password.response.nt_data) {
 398                         wbc_status = WBC_ERR_INVALID_PARAM;
 399                         BAIL_ON_WBC_ERROR(wbc_status);
 400                 }
 401
 402                 strncpy(request.data.auth_crap.user,
 403                         params->account_name,
 404                         sizeof(request.data.auth_crap.user)-1);
 405                 if (params->domain_name) {
 406                         strncpy(request.data.auth_crap.domain,
 407                                 params->domain_name,
 408                                 sizeof(request.data.auth_crap.domain)-1);
 409                 }
 410                 if (params->workstation_name) {
 411                         strncpy(request.data.auth_crap.workstation,
 412                                 params->workstation_name,
 413                                 sizeof(request.data.auth_crap.workstation)-1);
 414                 }
 415
 416                 request.data.auth_crap.logon_parameters =
 417                                 params->parameter_control;
 418
 419                 memcpy(request.data.auth_crap.chal,
 420                        params->password.response.challenge,
 421                        sizeof(request.data.auth_crap.chal));
 422
 423                 request.data.auth_crap.lm_resp_len =
 424                                 MIN(params->password.response.lm_length,
 425                                     sizeof(request.data.auth_crap.lm_resp));
 426                 request.data.auth_crap.nt_resp_len =
 427                                 MIN(params->password.response.nt_length,
 428                                     sizeof(request.data.auth_crap.nt_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                 if (params->password.response.nt_data) {
 435                         memcpy(request.data.auth_crap.nt_resp,
 436                                params->password.response.nt_data,
 437                                request.data.auth_crap.nt_resp_len);
 438                 }
 439                 break;
 440         default:
 441                 break;
 442         }
 443
 444         if (cmd == 0) {
 445                 wbc_status = WBC_ERR_INVALID_PARAM;
 446                 BAIL_ON_WBC_ERROR(wbc_status);
 447         }
 448
 449         if (params->flags) {
 450                 request.flags |= params->flags;
 451         }
 452
 453         wbc_status = wbcRequestResponse(cmd,
 454                                         &request,
 455                                         &response);
 456         if (response.data.auth.nt_status != 0) {
 457                 if (error) {
 458                         wbc_status = wbc_create_error_info(NULL,
 459                                                            &response,
 460                                                            error);
 461                         BAIL_ON_WBC_ERROR(wbc_status);
 462                 }
 463
 464                 wbc_status = WBC_ERR_AUTH_ERROR;
 465                 BAIL_ON_WBC_ERROR(wbc_status);
 466         }
 467         BAIL_ON_WBC_ERROR(wbc_status);
 468
 469         if (info) {
 470                 wbc_status = wbc_create_auth_info(NULL,
 471                                                   &response,
 472                                                   info);
 473                 BAIL_ON_WBC_ERROR(wbc_status);
 474         }
 475
 476 done:
 477         if (response.extra_data.data)
 478                 free(response.extra_data.data);
 479
 480         return wbc_status;
 481 }
 482
 483 /* Trigger a verification of the trust credentials of a specific domain */
 484 wbcErr wbcCheckTrustCredentials(const char *domain,
 485                                 struct wbcAuthErrorInfo **error)
 486 {
 487         struct winbindd_request request;
 488         struct winbindd_response response;
 489         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 490
 491         if (domain) {
 492                 /*
 493                  * the current protocol doesn't support
 494                  * specifying a domain
 495                  */
 496                 wbc_status = WBC_ERR_NOT_IMPLEMENTED;
 497                 BAIL_ON_WBC_ERROR(wbc_status);
 498         }
 499
 500         ZERO_STRUCT(request);
 501         ZERO_STRUCT(response);
 502
 503         /* Send request */
 504
 505         wbc_status = wbcRequestResponse(WINBINDD_CHECK_MACHACC,
 506                                         &request,
 507                                         &response);
 508         if (response.data.auth.nt_status != 0) {
 509                 if (error) {
 510                         wbc_status = wbc_create_error_info(NULL,
 511                                                            &response,
 512                                                            error);
 513                         BAIL_ON_WBC_ERROR(wbc_status);
 514                 }
 515
 516                 wbc_status = WBC_ERR_AUTH_ERROR;
 517                 BAIL_ON_WBC_ERROR(wbc_status);
 518         }
 519         BAIL_ON_WBC_ERROR(wbc_status);
 520
 521  done:
 522         return wbc_status;
 523 }
 524
 525 /* Trigger an extended logoff notification to Winbind for a specific user */
 526 wbcErr wbcLogoffUserEx(const struct wbcLogoffUserParams *params,
 527                        struct wbcAuthErrorInfo **error)
 528 {
 529         struct winbindd_request request;
 530         struct winbindd_response response;
 531         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 532         int i;
 533
 534         /* validate input */
 535
 536         if (!params || !params->username) {
 537                 wbc_status = WBC_ERR_INVALID_PARAM;
 538                 BAIL_ON_WBC_ERROR(wbc_status);
 539         }
 540
 541         if ((params->num_blobs > 0) && (params->blobs == NULL)) {
 542                 wbc_status = WBC_ERR_INVALID_PARAM;
 543                 BAIL_ON_WBC_ERROR(wbc_status);
 544         }
 545         if ((params->num_blobs == 0) && (params->blobs != NULL)) {
 546                 wbc_status = WBC_ERR_INVALID_PARAM;
 547                 BAIL_ON_WBC_ERROR(wbc_status);
 548         }
 549
 550         ZERO_STRUCT(request);
 551         ZERO_STRUCT(response);
 552
 553         strncpy(request.data.logoff.user, params->username,
 554                 sizeof(request.data.logoff.user)-1);
 555
 556         for (i=0; i<params->num_blobs; i++) {
 557
 558                 if (strcasecmp(params->blobs[i].name, "ccfilename") == 0) {
 559                         if (params->blobs[i].blob.data) {
 560                                 strncpy(request.data.logoff.krb5ccname,
 561                                         (const char *)params->blobs[i].blob.data,
 562                                         sizeof(request.data.logoff.krb5ccname) - 1);
 563                         }
 564                         continue;
 565                 }
 566
 567                 if (strcasecmp(params->blobs[i].name, "user_uid") == 0) {
 568                         if (params->blobs[i].blob.data) {
 569                                 memcpy(&request.data.logoff.uid,
 570                                         params->blobs[i].blob.data,
 571                                         MIN(params->blobs[i].blob.length,
 572                                             sizeof(request.data.logoff.uid)));
 573                         }
 574                         continue;
 575                 }
 576
 577                 if (strcasecmp(params->blobs[i].name, "flags") == 0) {
 578                         if (params->blobs[i].blob.data) {
 579                                 memcpy(&request.flags,
 580                                         params->blobs[i].blob.data,
 581                                         MIN(params->blobs[i].blob.length,
 582                                             sizeof(request.flags)));
 583                         }
 584                         continue;
 585                 }
 586         }
 587
 588         /* Send request */
 589
 590         wbc_status = wbcRequestResponse(WINBINDD_PAM_LOGOFF,
 591                                         &request,
 592                                         &response);
 593
 594         /* Take the response above and return it to the caller */
 595         if (response.data.auth.nt_status != 0) {
 596                 if (error) {
 597                         wbc_status = wbc_create_error_info(NULL,
 598                                                            &response,
 599                                                            error);
 600                         BAIL_ON_WBC_ERROR(wbc_status);
 601                 }
 602
 603                 wbc_status = WBC_ERR_AUTH_ERROR;
 604                 BAIL_ON_WBC_ERROR(wbc_status);
 605         }
 606         BAIL_ON_WBC_ERROR(wbc_status);
 607
 608  done:
 609         return wbc_status;
 610 }
 611
 612 /* Trigger a logoff notification to Winbind for a specific user */
 613 wbcErr wbcLogoffUser(const char *username,
 614                      uid_t uid,
 615                      const char *ccfilename)
 616 {
 617         struct winbindd_request request;
 618         struct winbindd_response response;
 619         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 620
 621         /* validate input */
 622
 623         if (!username) {
 624                 wbc_status = WBC_ERR_INVALID_PARAM;
 625                 BAIL_ON_WBC_ERROR(wbc_status);
 626         }
 627
 628         ZERO_STRUCT(request);
 629         ZERO_STRUCT(response);
 630
 631         strncpy(request.data.logoff.user, username,
 632                 sizeof(request.data.logoff.user)-1);
 633         request.data.logoff.uid = uid;
 634
 635         if (ccfilename) {
 636                 strncpy(request.data.logoff.krb5ccname, ccfilename,
 637                         sizeof(request.data.logoff.krb5ccname)-1);
 638         }
 639
 640         /* Send request */
 641
 642         wbc_status = wbcRequestResponse(WINBINDD_PAM_LOGOFF,
 643                                         &request,
 644                                         &response);
 645
 646         /* Take the response above and return it to the caller */
 647
 648  done:
 649         return wbc_status;
 650 }
 651
 652 /* Change a password for a user with more detailed information upon failure */
 653 wbcErr wbcChangeUserPasswordEx(const struct wbcChangePasswordParams *params,
 654                                struct wbcAuthErrorInfo **error,
 655                                enum wbcPasswordChangeRejectReason *reject_reason,
 656                                struct wbcUserPasswordPolicyInfo **policy)
 657 {
 658         struct winbindd_request request;
 659         struct winbindd_response response;
 660         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 661         int cmd = 0;
 662
 663         /* validate input */
 664
 665         if (!params->account_name) {
 666                 wbc_status = WBC_ERR_INVALID_PARAM;
 667                 BAIL_ON_WBC_ERROR(wbc_status);
 668         }
 669
 670         if (error) {
 671                 *error = NULL;
 672         }
 673
 674         if (policy) {
 675                 *policy = NULL;
 676         }
 677
 678         if (reject_reason) {
 679                 *reject_reason = -1;
 680         }
 681
 682         ZERO_STRUCT(request);
 683         ZERO_STRUCT(response);
 684
 685         switch (params->level) {
 686         case WBC_CHANGE_PASSWORD_LEVEL_PLAIN:
 687                 cmd = WINBINDD_PAM_CHAUTHTOK;
 688
 689                 if (!params->account_name) {
 690                         wbc_status = WBC_ERR_INVALID_PARAM;
 691                         BAIL_ON_WBC_ERROR(wbc_status);
 692                 }
 693
 694                 strncpy(request.data.chauthtok.user, params->account_name,
 695                         sizeof(request.data.chauthtok.user) - 1);
 696
 697                 if (params->old_password.plaintext) {
 698                         strncpy(request.data.chauthtok.oldpass,
 699                                 params->old_password.plaintext,
 700                                 sizeof(request.data.chauthtok.oldpass) - 1);
 701                 }
 702
 703                 if (params->new_password.plaintext) {
 704                         strncpy(request.data.chauthtok.newpass,
 705                                 params->new_password.plaintext,
 706                                 sizeof(request.data.chauthtok.newpass) - 1);
 707                 }
 708                 break;
 709
 710         case WBC_CHANGE_PASSWORD_LEVEL_RESPONSE:
 711                 cmd = WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP;
 712
 713                 if (!params->account_name || !params->domain_name) {
 714                         wbc_status = WBC_ERR_INVALID_PARAM;
 715                         BAIL_ON_WBC_ERROR(wbc_status);
 716                 }
 717
 718                 if (params->old_password.response.old_lm_hash_enc_length &&
 719                     !params->old_password.response.old_lm_hash_enc_data) {
 720                         wbc_status = WBC_ERR_INVALID_PARAM;
 721                         BAIL_ON_WBC_ERROR(wbc_status);
 722                 }
 723
 724                 if (params->old_password.response.old_lm_hash_enc_length == 0 &&
 725                     params->old_password.response.old_lm_hash_enc_data) {
 726                         wbc_status = WBC_ERR_INVALID_PARAM;
 727                         BAIL_ON_WBC_ERROR(wbc_status);
 728                 }
 729
 730                 if (params->old_password.response.old_nt_hash_enc_length &&
 731                     !params->old_password.response.old_nt_hash_enc_data) {
 732                         wbc_status = WBC_ERR_INVALID_PARAM;
 733                         BAIL_ON_WBC_ERROR(wbc_status);
 734                 }
 735
 736                 if (params->old_password.response.old_nt_hash_enc_length == 0 &&
 737                     params->old_password.response.old_nt_hash_enc_data) {
 738                         wbc_status = WBC_ERR_INVALID_PARAM;
 739                         BAIL_ON_WBC_ERROR(wbc_status);
 740                 }
 741
 742                 if (params->new_password.response.lm_length &&
 743                     !params->new_password.response.lm_data) {
 744                         wbc_status = WBC_ERR_INVALID_PARAM;
 745                         BAIL_ON_WBC_ERROR(wbc_status);
 746                 }
 747
 748                 if (params->new_password.response.lm_length == 0 &&
 749                     params->new_password.response.lm_data) {
 750                         wbc_status = WBC_ERR_INVALID_PARAM;
 751                         BAIL_ON_WBC_ERROR(wbc_status);
 752                 }
 753
 754                 if (params->new_password.response.nt_length &&
 755                     !params->new_password.response.nt_data) {
 756                         wbc_status = WBC_ERR_INVALID_PARAM;
 757                         BAIL_ON_WBC_ERROR(wbc_status);
 758                 }
 759
 760                 if (params->new_password.response.nt_length == 0 &&
 761                     params->new_password.response.nt_data) {
 762                         wbc_status = WBC_ERR_INVALID_PARAM;
 763                         BAIL_ON_WBC_ERROR(wbc_status);
 764                 }
 765
 766                 strncpy(request.data.chng_pswd_auth_crap.user,
 767                         params->account_name,
 768                         sizeof(request.data.chng_pswd_auth_crap.user) - 1);
 769
 770                 strncpy(request.data.chng_pswd_auth_crap.domain,
 771                         params->domain_name,
 772                         sizeof(request.data.chng_pswd_auth_crap.domain) - 1);
 773
 774                 if (params->new_password.response.nt_data) {
 775                         memcpy(request.data.chng_pswd_auth_crap.new_nt_pswd,
 776                                params->new_password.response.nt_data,
 777                                request.data.chng_pswd_auth_crap.new_nt_pswd_len);
 778                         request.data.chng_pswd_auth_crap.new_nt_pswd_len =
 779                                 params->new_password.response.nt_length;
 780                 }
 781
 782                 if (params->new_password.response.lm_data) {
 783                         memcpy(request.data.chng_pswd_auth_crap.new_lm_pswd,
 784                                params->new_password.response.lm_data,
 785                                request.data.chng_pswd_auth_crap.new_lm_pswd_len);
 786                         request.data.chng_pswd_auth_crap.new_lm_pswd_len =
 787                                 params->new_password.response.lm_length;
 788                 }
 789
 790                 if (params->old_password.response.old_nt_hash_enc_data) {
 791                         memcpy(request.data.chng_pswd_auth_crap.old_nt_hash_enc,
 792                                params->old_password.response.old_nt_hash_enc_data,
 793                                request.data.chng_pswd_auth_crap.old_nt_hash_enc_len);
 794                         request.data.chng_pswd_auth_crap.old_nt_hash_enc_len =
 795                                 params->old_password.response.old_nt_hash_enc_length;
 796                 }
 797
 798                 if (params->old_password.response.old_lm_hash_enc_data) {
 799                         memcpy(request.data.chng_pswd_auth_crap.old_lm_hash_enc,
 800                                params->old_password.response.old_lm_hash_enc_data,
 801                                request.data.chng_pswd_auth_crap.old_lm_hash_enc_len);
 802                         request.data.chng_pswd_auth_crap.old_lm_hash_enc_len =
 803                                 params->old_password.response.old_lm_hash_enc_length;
 804                 }
 805
 806                 break;
 807         default:
 808                 wbc_status = WBC_ERR_INVALID_PARAM;
 809                 BAIL_ON_WBC_ERROR(wbc_status);
 810                 break;
 811         }
 812
 813         /* Send request */
 814
 815         wbc_status = wbcRequestResponse(cmd,
 816                                         &request,
 817                                         &response);
 818         if (WBC_ERROR_IS_OK(wbc_status)) {
 819                 goto done;
 820         }
 821
 822         /* Take the response above and return it to the caller */
 823
 824         if (response.data.auth.nt_status != 0) {
 825                 if (error) {
 826                         wbc_status = wbc_create_error_info(NULL,
 827                                                            &response,
 828                                                            error);
 829                         BAIL_ON_WBC_ERROR(wbc_status);
 830                 }
 831
 832         }
 833
 834         if (policy) {
 835                 wbc_status = wbc_create_password_policy_info(NULL,
 836                                                              &response,
 837                                                              policy);
 838                 BAIL_ON_WBC_ERROR(wbc_status);
 839         }
 840
 841         if (reject_reason) {
 842                 *reject_reason = response.data.auth.reject_reason;
 843         }
 844
 845         wbc_status = WBC_ERR_PWD_CHANGE_FAILED;
 846         BAIL_ON_WBC_ERROR(wbc_status);
 847
 848  done:
 849         return wbc_status;
 850 }
 851
 852 /* Change a password for a user */
 853 wbcErr wbcChangeUserPassword(const char *username,
 854                              const char *old_password,
 855                              const char *new_password)
 856 {
 857         wbcErr wbc_status = WBC_ERR_SUCCESS;
 858         struct wbcChangePasswordParams params;
 859
 860         ZERO_STRUCT(params);
 861
 862         params.account_name             = username;
 863         params.level                    = WBC_CHANGE_PASSWORD_LEVEL_PLAIN;
 864         params.old_password.plaintext   = old_password;
 865         params.new_password.plaintext   = new_password;
 866
 867         wbc_status = wbcChangeUserPasswordEx(&params,
 868                                              NULL,
 869                                              NULL,
 870                                              NULL);
 871         BAIL_ON_WBC_ERROR(wbc_status);
 872
 873 done:
 874         return wbc_status;
 875 }
 876
 877 /* Logon a User */
 878 wbcErr wbcLogonUser(const struct wbcLogonUserParams *params,
 879                     struct wbcLogonUserInfo **info,
 880                     struct wbcAuthErrorInfo **error,
 881                     struct wbcUserPasswordPolicyInfo **policy)
 882 {
 883         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 884         int cmd = 0;
 885         struct winbindd_request request;
 886         struct winbindd_response response;
 887         uint32_t i;
 888
 889         ZERO_STRUCT(request);
 890         ZERO_STRUCT(response);
 891
 892         if (info) {
 893                 *info = NULL;
 894         }
 895         if (error) {
 896                 *error = NULL;
 897         }
 898         if (policy) {
 899                 *policy = NULL;
 900         }
 901
 902         if (!params) {
 903                 wbc_status = WBC_ERR_INVALID_PARAM;
 904                 BAIL_ON_WBC_ERROR(wbc_status);
 905         }
 906
 907         if (!params->username) {
 908                 wbc_status = WBC_ERR_INVALID_PARAM;
 909                 BAIL_ON_WBC_ERROR(wbc_status);
 910         }
 911
 912         if ((params->num_blobs > 0) && (params->blobs == NULL)) {
 913                 wbc_status = WBC_ERR_INVALID_PARAM;
 914                 BAIL_ON_WBC_ERROR(wbc_status);
 915         }
 916         if ((params->num_blobs == 0) && (params->blobs != NULL)) {
 917                 wbc_status = WBC_ERR_INVALID_PARAM;
 918                 BAIL_ON_WBC_ERROR(wbc_status);
 919         }
 920
 921         /* Initialize request */
 922
 923         cmd = WINBINDD_PAM_AUTH;
 924         request.flags = WBFLAG_PAM_INFO3_TEXT |
 925                         WBFLAG_PAM_USER_SESSION_KEY |
 926                         WBFLAG_PAM_LMKEY;
 927
 928         if (!params->password) {
 929                 wbc_status = WBC_ERR_INVALID_PARAM;
 930                 BAIL_ON_WBC_ERROR(wbc_status);
 931         }
 932
 933         strncpy(request.data.auth.user,
 934                 params->username,
 935                 sizeof(request.data.auth.user)-1);
 936
 937         strncpy(request.data.auth.pass,
 938                 params->password,
 939                 sizeof(request.data.auth.pass)-1);
 940
 941         for (i=0; i<params->num_blobs; i++) {
 942
 943                 if (strcasecmp(params->blobs[i].name, "krb5_cc_type") == 0) {
 944                         if (params->blobs[i].blob.data) {
 945                                 strncpy(request.data.auth.krb5_cc_type,
 946                                         (const char *)params->blobs[i].blob.data,
 947                                         sizeof(request.data.auth.krb5_cc_type) - 1);
 948                         }
 949                         continue;
 950                 }
 951
 952                 if (strcasecmp(params->blobs[i].name, "user_uid") == 0) {
 953                         if (params->blobs[i].blob.data) {
 954                                 memcpy(&request.data.auth.uid,
 955                                         params->blobs[i].blob.data,
 956                                         MIN(sizeof(request.data.auth.uid),
 957                                             params->blobs[i].blob.length));
 958                         }
 959                         continue;
 960                 }
 961
 962                 if (strcasecmp(params->blobs[i].name, "flags") == 0) {
 963                         if (params->blobs[i].blob.data) {
 964                                 uint32_t flags;
 965                                 memcpy(&flags,
 966                                         params->blobs[i].blob.data,
 967                                         MIN(sizeof(flags),
 968                                             params->blobs[i].blob.length));
 969                                 request.flags |= flags;
 970                         }
 971                         continue;
 972                 }
 973
 974                 if (strcasecmp(params->blobs[i].name, "membership_of") == 0) {
 975                         if (params->blobs[i].blob.data &&
 976                             params->blobs[i].blob.data[0] > 0) {
 977                                 strncpy(request.data.auth.require_membership_of_sid,
 978                                         (const char *)params->blobs[i].blob.data,
 979                                         sizeof(request.data.auth.require_membership_of_sid) - 1);
 980                         }
 981                         continue;
 982                 }
 983         }
 984
 985         wbc_status = wbcRequestResponse(cmd,
 986                                         &request,
 987                                         &response);
 988
 989         if (response.data.auth.nt_status != 0) {
 990                 if (error) {
 991                         wbc_status = wbc_create_error_info(NULL,
 992                                                            &response,
 993                                                            error);
 994                         BAIL_ON_WBC_ERROR(wbc_status);
 995                 }
 996
 997                 wbc_status = WBC_ERR_AUTH_ERROR;
 998                 BAIL_ON_WBC_ERROR(wbc_status);
 999         }
1000         BAIL_ON_WBC_ERROR(wbc_status);
1001
1002         if (info) {
1003                 wbc_status = wbc_create_logon_info(NULL,
1004                                                    &response,
1005                                                    info);
1006                 BAIL_ON_WBC_ERROR(wbc_status);
1007         }
1008
1009         if (policy) {
1010                 wbc_status = wbc_create_password_policy_info(NULL,
1011                                                              &response,
1012                                                              policy);
1013                 BAIL_ON_WBC_ERROR(wbc_status);
1014         }
1015
1016 done:
1017         if (response.extra_data.data)
1018                 free(response.extra_data.data);
1019
1020         return wbc_status;
1021 }
1022
1023 /* Authenticate a user with cached credentials */
1024 wbcErr wbcCredentialCache(struct wbcCredentialCacheParams *params,
1025                           struct wbcCredentialCacheInfo **info,
1026                           struct wbcAuthErrorInfo **error)
1027 {
1028         return WBC_ERR_NOT_IMPLEMENTED;
1029 }