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                 request.data.auth_crap.nt_resp_len =
 430                                 MIN(params->password.response.nt_length,
 431                                     sizeof(request.data.auth_crap.nt_resp));
 432                 if (params->password.response.lm_data) {
 433                         memcpy(request.data.auth_crap.lm_resp,
 434                                params->password.response.lm_data,
 435                                request.data.auth_crap.lm_resp_len);
 436                 }
 437                 if (params->password.response.nt_data) {
 438                         memcpy(request.data.auth_crap.nt_resp,
 439                                params->password.response.nt_data,
 440                                request.data.auth_crap.nt_resp_len);
 441                 }
 442                 break;
 443         default:
 444                 break;
 445         }
 446
 447         if (cmd == 0) {
 448                 wbc_status = WBC_ERR_INVALID_PARAM;
 449                 BAIL_ON_WBC_ERROR(wbc_status);
 450         }
 451
 452         if (params->flags) {
 453                 request.flags |= params->flags;
 454         }
 455
 456         wbc_status = wbcRequestResponse(cmd,
 457                                         &request,
 458                                         &response);
 459         if (response.data.auth.nt_status != 0) {
 460                 if (error) {
 461                         wbc_status = wbc_create_error_info(NULL,
 462                                                            &response,
 463                                                            error);
 464                         BAIL_ON_WBC_ERROR(wbc_status);
 465                 }
 466
 467                 wbc_status = WBC_ERR_AUTH_ERROR;
 468                 BAIL_ON_WBC_ERROR(wbc_status);
 469         }
 470         BAIL_ON_WBC_ERROR(wbc_status);
 471
 472         if (info) {
 473                 wbc_status = wbc_create_auth_info(NULL,
 474                                                   &response,
 475                                                   info);
 476                 BAIL_ON_WBC_ERROR(wbc_status);
 477         }
 478
 479 done:
 480         if (response.extra_data.data)
 481                 free(response.extra_data.data);
 482
 483         return wbc_status;
 484 }
 485
 486 /* Trigger a verification of the trust credentials of a specific domain */
 487 wbcErr wbcCheckTrustCredentials(const char *domain,
 488                                 struct wbcAuthErrorInfo **error)
 489 {
 490         struct winbindd_request request;
 491         struct winbindd_response response;
 492         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 493
 494         if (domain) {
 495                 /*
 496                  * the current protocol doesn't support
 497                  * specifying a domain
 498                  */
 499                 wbc_status = WBC_ERR_NOT_IMPLEMENTED;
 500                 BAIL_ON_WBC_ERROR(wbc_status);
 501         }
 502
 503         ZERO_STRUCT(request);
 504         ZERO_STRUCT(response);
 505
 506         /* Send request */
 507
 508         wbc_status = wbcRequestResponse(WINBINDD_CHECK_MACHACC,
 509                                         &request,
 510                                         &response);
 511         if (response.data.auth.nt_status != 0) {
 512                 if (error) {
 513                         wbc_status = wbc_create_error_info(NULL,
 514                                                            &response,
 515                                                            error);
 516                         BAIL_ON_WBC_ERROR(wbc_status);
 517                 }
 518
 519                 wbc_status = WBC_ERR_AUTH_ERROR;
 520                 BAIL_ON_WBC_ERROR(wbc_status);
 521         }
 522         BAIL_ON_WBC_ERROR(wbc_status);
 523
 524  done:
 525         return wbc_status;
 526 }
 527
 528 /* Trigger an extended logoff notification to Winbind for a specific user */
 529 wbcErr wbcLogoffUserEx(const struct wbcLogoffUserParams *params,
 530                        struct wbcAuthErrorInfo **error)
 531 {
 532         struct winbindd_request request;
 533         struct winbindd_response response;
 534         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 535         int i;
 536
 537         /* validate input */
 538
 539         if (!params || !params->username) {
 540                 wbc_status = WBC_ERR_INVALID_PARAM;
 541                 BAIL_ON_WBC_ERROR(wbc_status);
 542         }
 543
 544         if ((params->num_blobs > 0) && (params->blobs == NULL)) {
 545                 wbc_status = WBC_ERR_INVALID_PARAM;
 546                 BAIL_ON_WBC_ERROR(wbc_status);
 547         }
 548         if ((params->num_blobs == 0) && (params->blobs != NULL)) {
 549                 wbc_status = WBC_ERR_INVALID_PARAM;
 550                 BAIL_ON_WBC_ERROR(wbc_status);
 551         }
 552
 553         ZERO_STRUCT(request);
 554         ZERO_STRUCT(response);
 555
 556         strncpy(request.data.logoff.user, params->username,
 557                 sizeof(request.data.logoff.user)-1);
 558
 559         for (i=0; i<params->num_blobs; i++) {
 560
 561                 if (strcasecmp(params->blobs[i].name, "ccfilename") == 0) {
 562                         if (params->blobs[i].blob.data) {
 563                                 strncpy(request.data.logoff.krb5ccname,
 564                                         (const char *)params->blobs[i].blob.data,
 565                                         sizeof(request.data.logoff.krb5ccname) - 1);
 566                         }
 567                         continue;
 568                 }
 569
 570                 if (strcasecmp(params->blobs[i].name, "user_uid") == 0) {
 571                         if (params->blobs[i].blob.data) {
 572                                 memcpy(&request.data.logoff.uid,
 573                                         params->blobs[i].blob.data,
 574                                         MIN(params->blobs[i].blob.length,
 575                                             sizeof(request.data.logoff.uid)));
 576                         }
 577                         continue;
 578                 }
 579
 580                 if (strcasecmp(params->blobs[i].name, "flags") == 0) {
 581                         if (params->blobs[i].blob.data) {
 582                                 memcpy(&request.flags,
 583                                         params->blobs[i].blob.data,
 584                                         MIN(params->blobs[i].blob.length,
 585                                             sizeof(request.flags)));
 586                         }
 587                         continue;
 588                 }
 589         }
 590
 591         /* Send request */
 592
 593         wbc_status = wbcRequestResponse(WINBINDD_PAM_LOGOFF,
 594                                         &request,
 595                                         &response);
 596
 597         /* Take the response above and return it to the caller */
 598         if (response.data.auth.nt_status != 0) {
 599                 if (error) {
 600                         wbc_status = wbc_create_error_info(NULL,
 601                                                            &response,
 602                                                            error);
 603                         BAIL_ON_WBC_ERROR(wbc_status);
 604                 }
 605
 606                 wbc_status = WBC_ERR_AUTH_ERROR;
 607                 BAIL_ON_WBC_ERROR(wbc_status);
 608         }
 609         BAIL_ON_WBC_ERROR(wbc_status);
 610
 611  done:
 612         return wbc_status;
 613 }
 614
 615 /* Trigger a logoff notification to Winbind for a specific user */
 616 wbcErr wbcLogoffUser(const char *username,
 617                      uid_t uid,
 618                      const char *ccfilename)
 619 {
 620         struct winbindd_request request;
 621         struct winbindd_response response;
 622         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 623
 624         /* validate input */
 625
 626         if (!username) {
 627                 wbc_status = WBC_ERR_INVALID_PARAM;
 628                 BAIL_ON_WBC_ERROR(wbc_status);
 629         }
 630
 631         ZERO_STRUCT(request);
 632         ZERO_STRUCT(response);
 633
 634         strncpy(request.data.logoff.user, username,
 635                 sizeof(request.data.logoff.user)-1);
 636         request.data.logoff.uid = uid;
 637
 638         if (ccfilename) {
 639                 strncpy(request.data.logoff.krb5ccname, ccfilename,
 640                         sizeof(request.data.logoff.krb5ccname)-1);
 641         }
 642
 643         /* Send request */
 644
 645         wbc_status = wbcRequestResponse(WINBINDD_PAM_LOGOFF,
 646                                         &request,
 647                                         &response);
 648
 649         /* Take the response above and return it to the caller */
 650
 651  done:
 652         return wbc_status;
 653 }
 654
 655 /* Change a password for a user with more detailed information upon failure */
 656 wbcErr wbcChangeUserPasswordEx(const struct wbcChangePasswordParams *params,
 657                                struct wbcAuthErrorInfo **error,
 658                                enum wbcPasswordChangeRejectReason *reject_reason,
 659                                struct wbcUserPasswordPolicyInfo **policy)
 660 {
 661         struct winbindd_request request;
 662         struct winbindd_response response;
 663         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 664         int cmd = 0;
 665
 666         /* validate input */
 667
 668         if (!params->account_name) {
 669                 wbc_status = WBC_ERR_INVALID_PARAM;
 670                 BAIL_ON_WBC_ERROR(wbc_status);
 671         }
 672
 673         if (error) {
 674                 *error = NULL;
 675         }
 676
 677         if (policy) {
 678                 *policy = NULL;
 679         }
 680
 681         if (reject_reason) {
 682                 *reject_reason = -1;
 683         }
 684
 685         ZERO_STRUCT(request);
 686         ZERO_STRUCT(response);
 687
 688         switch (params->level) {
 689         case WBC_CHANGE_PASSWORD_LEVEL_PLAIN:
 690                 cmd = WINBINDD_PAM_CHAUTHTOK;
 691
 692                 if (!params->account_name) {
 693                         wbc_status = WBC_ERR_INVALID_PARAM;
 694                         BAIL_ON_WBC_ERROR(wbc_status);
 695                 }
 696
 697                 strncpy(request.data.chauthtok.user, params->account_name,
 698                         sizeof(request.data.chauthtok.user) - 1);
 699
 700                 if (params->old_password.plaintext) {
 701                         strncpy(request.data.chauthtok.oldpass,
 702                                 params->old_password.plaintext,
 703                                 sizeof(request.data.chauthtok.oldpass) - 1);
 704                 }
 705
 706                 if (params->new_password.plaintext) {
 707                         strncpy(request.data.chauthtok.newpass,
 708                                 params->new_password.plaintext,
 709                                 sizeof(request.data.chauthtok.newpass) - 1);
 710                 }
 711                 break;
 712
 713         case WBC_CHANGE_PASSWORD_LEVEL_RESPONSE:
 714                 cmd = WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP;
 715
 716                 if (!params->account_name || !params->domain_name) {
 717                         wbc_status = WBC_ERR_INVALID_PARAM;
 718                         BAIL_ON_WBC_ERROR(wbc_status);
 719                 }
 720
 721                 if (params->old_password.response.old_lm_hash_enc_length &&
 722                     !params->old_password.response.old_lm_hash_enc_data) {
 723                         wbc_status = WBC_ERR_INVALID_PARAM;
 724                         BAIL_ON_WBC_ERROR(wbc_status);
 725                 }
 726
 727                 if (params->old_password.response.old_lm_hash_enc_length == 0 &&
 728                     params->old_password.response.old_lm_hash_enc_data) {
 729                         wbc_status = WBC_ERR_INVALID_PARAM;
 730                         BAIL_ON_WBC_ERROR(wbc_status);
 731                 }
 732
 733                 if (params->old_password.response.old_nt_hash_enc_length &&
 734                     !params->old_password.response.old_nt_hash_enc_data) {
 735                         wbc_status = WBC_ERR_INVALID_PARAM;
 736                         BAIL_ON_WBC_ERROR(wbc_status);
 737                 }
 738
 739                 if (params->old_password.response.old_nt_hash_enc_length == 0 &&
 740                     params->old_password.response.old_nt_hash_enc_data) {
 741                         wbc_status = WBC_ERR_INVALID_PARAM;
 742                         BAIL_ON_WBC_ERROR(wbc_status);
 743                 }
 744
 745                 if (params->new_password.response.lm_length &&
 746                     !params->new_password.response.lm_data) {
 747                         wbc_status = WBC_ERR_INVALID_PARAM;
 748                         BAIL_ON_WBC_ERROR(wbc_status);
 749                 }
 750
 751                 if (params->new_password.response.lm_length == 0 &&
 752                     params->new_password.response.lm_data) {
 753                         wbc_status = WBC_ERR_INVALID_PARAM;
 754                         BAIL_ON_WBC_ERROR(wbc_status);
 755                 }
 756
 757                 if (params->new_password.response.nt_length &&
 758                     !params->new_password.response.nt_data) {
 759                         wbc_status = WBC_ERR_INVALID_PARAM;
 760                         BAIL_ON_WBC_ERROR(wbc_status);
 761                 }
 762
 763                 if (params->new_password.response.nt_length == 0 &&
 764                     params->new_password.response.nt_data) {
 765                         wbc_status = WBC_ERR_INVALID_PARAM;
 766                         BAIL_ON_WBC_ERROR(wbc_status);
 767                 }
 768
 769                 strncpy(request.data.chng_pswd_auth_crap.user,
 770                         params->account_name,
 771                         sizeof(request.data.chng_pswd_auth_crap.user) - 1);
 772
 773                 strncpy(request.data.chng_pswd_auth_crap.domain,
 774                         params->domain_name,
 775                         sizeof(request.data.chng_pswd_auth_crap.domain) - 1);
 776
 777                 if (params->new_password.response.nt_data) {
 778                         memcpy(request.data.chng_pswd_auth_crap.new_nt_pswd,
 779                                params->new_password.response.nt_data,
 780                                request.data.chng_pswd_auth_crap.new_nt_pswd_len);
 781                         request.data.chng_pswd_auth_crap.new_nt_pswd_len =
 782                                 params->new_password.response.nt_length;
 783                 }
 784
 785                 if (params->new_password.response.lm_data) {
 786                         memcpy(request.data.chng_pswd_auth_crap.new_lm_pswd,
 787                                params->new_password.response.lm_data,
 788                                request.data.chng_pswd_auth_crap.new_lm_pswd_len);
 789                         request.data.chng_pswd_auth_crap.new_lm_pswd_len =
 790                                 params->new_password.response.lm_length;
 791                 }
 792
 793                 if (params->old_password.response.old_nt_hash_enc_data) {
 794                         memcpy(request.data.chng_pswd_auth_crap.old_nt_hash_enc,
 795                                params->old_password.response.old_nt_hash_enc_data,
 796                                request.data.chng_pswd_auth_crap.old_nt_hash_enc_len);
 797                         request.data.chng_pswd_auth_crap.old_nt_hash_enc_len =
 798                                 params->old_password.response.old_nt_hash_enc_length;
 799                 }
 800
 801                 if (params->old_password.response.old_lm_hash_enc_data) {
 802                         memcpy(request.data.chng_pswd_auth_crap.old_lm_hash_enc,
 803                                params->old_password.response.old_lm_hash_enc_data,
 804                                request.data.chng_pswd_auth_crap.old_lm_hash_enc_len);
 805                         request.data.chng_pswd_auth_crap.old_lm_hash_enc_len =
 806                                 params->old_password.response.old_lm_hash_enc_length;
 807                 }
 808
 809                 break;
 810         default:
 811                 wbc_status = WBC_ERR_INVALID_PARAM;
 812                 BAIL_ON_WBC_ERROR(wbc_status);
 813                 break;
 814         }
 815
 816         /* Send request */
 817
 818         wbc_status = wbcRequestResponse(cmd,
 819                                         &request,
 820                                         &response);
 821         if (WBC_ERROR_IS_OK(wbc_status)) {
 822                 goto done;
 823         }
 824
 825         /* Take the response above and return it to the caller */
 826
 827         if (response.data.auth.nt_status != 0) {
 828                 if (error) {
 829                         wbc_status = wbc_create_error_info(NULL,
 830                                                            &response,
 831                                                            error);
 832                         BAIL_ON_WBC_ERROR(wbc_status);
 833                 }
 834
 835         }
 836
 837         if (policy) {
 838                 wbc_status = wbc_create_password_policy_info(NULL,
 839                                                              &response,
 840                                                              policy);
 841                 BAIL_ON_WBC_ERROR(wbc_status);
 842         }
 843
 844         if (reject_reason) {
 845                 *reject_reason = response.data.auth.reject_reason;
 846         }
 847
 848         wbc_status = WBC_ERR_PWD_CHANGE_FAILED;
 849         BAIL_ON_WBC_ERROR(wbc_status);
 850
 851  done:
 852         return wbc_status;
 853 }
 854
 855 /* Change a password for a user */
 856 wbcErr wbcChangeUserPassword(const char *username,
 857                              const char *old_password,
 858                              const char *new_password)
 859 {
 860         wbcErr wbc_status = WBC_ERR_SUCCESS;
 861         struct wbcChangePasswordParams params;
 862
 863         ZERO_STRUCT(params);
 864
 865         params.account_name             = username;
 866         params.level                    = WBC_CHANGE_PASSWORD_LEVEL_PLAIN;
 867         params.old_password.plaintext   = old_password;
 868         params.new_password.plaintext   = new_password;
 869
 870         wbc_status = wbcChangeUserPasswordEx(&params,
 871                                              NULL,
 872                                              NULL,
 873                                              NULL);
 874         BAIL_ON_WBC_ERROR(wbc_status);
 875
 876 done:
 877         return wbc_status;
 878 }
 879
 880 /* Logon a User */
 881 wbcErr wbcLogonUser(const struct wbcLogonUserParams *params,
 882                     struct wbcLogonUserInfo **info,
 883                     struct wbcAuthErrorInfo **error,
 884                     struct wbcUserPasswordPolicyInfo **policy)
 885 {
 886         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 887         int cmd = 0;
 888         struct winbindd_request request;
 889         struct winbindd_response response;
 890         uint32_t i;
 891
 892         ZERO_STRUCT(request);
 893         ZERO_STRUCT(response);
 894
 895         if (info) {
 896                 *info = NULL;
 897         }
 898         if (error) {
 899                 *error = NULL;
 900         }
 901         if (policy) {
 902                 *policy = NULL;
 903         }
 904
 905         if (!params) {
 906                 wbc_status = WBC_ERR_INVALID_PARAM;
 907                 BAIL_ON_WBC_ERROR(wbc_status);
 908         }
 909
 910         if (!params->username) {
 911                 wbc_status = WBC_ERR_INVALID_PARAM;
 912                 BAIL_ON_WBC_ERROR(wbc_status);
 913         }
 914
 915         if ((params->num_blobs > 0) && (params->blobs == NULL)) {
 916                 wbc_status = WBC_ERR_INVALID_PARAM;
 917                 BAIL_ON_WBC_ERROR(wbc_status);
 918         }
 919         if ((params->num_blobs == 0) && (params->blobs != NULL)) {
 920                 wbc_status = WBC_ERR_INVALID_PARAM;
 921                 BAIL_ON_WBC_ERROR(wbc_status);
 922         }
 923
 924         /* Initialize request */
 925
 926         cmd = WINBINDD_PAM_AUTH;
 927         request.flags = WBFLAG_PAM_INFO3_TEXT |
 928                         WBFLAG_PAM_USER_SESSION_KEY |
 929                         WBFLAG_PAM_LMKEY;
 930
 931         if (!params->password) {
 932                 wbc_status = WBC_ERR_INVALID_PARAM;
 933                 BAIL_ON_WBC_ERROR(wbc_status);
 934         }
 935
 936         strncpy(request.data.auth.user,
 937                 params->username,
 938                 sizeof(request.data.auth.user)-1);
 939
 940         strncpy(request.data.auth.pass,
 941                 params->password,
 942                 sizeof(request.data.auth.pass)-1);
 943
 944         for (i=0; i<params->num_blobs; i++) {
 945
 946                 if (strcasecmp(params->blobs[i].name, "krb5_cc_type") == 0) {
 947                         if (params->blobs[i].blob.data) {
 948                                 strncpy(request.data.auth.krb5_cc_type,
 949                                         (const char *)params->blobs[i].blob.data,
 950                                         sizeof(request.data.auth.krb5_cc_type) - 1);
 951                         }
 952                         continue;
 953                 }
 954
 955                 if (strcasecmp(params->blobs[i].name, "user_uid") == 0) {
 956                         if (params->blobs[i].blob.data) {
 957                                 memcpy(&request.data.auth.uid,
 958                                         params->blobs[i].blob.data,
 959                                         MIN(sizeof(request.data.auth.uid),
 960                                             params->blobs[i].blob.length));
 961                         }
 962                         continue;
 963                 }
 964
 965                 if (strcasecmp(params->blobs[i].name, "flags") == 0) {
 966                         if (params->blobs[i].blob.data) {
 967                                 uint32_t flags;
 968                                 memcpy(&flags,
 969                                         params->blobs[i].blob.data,
 970                                         MIN(sizeof(flags),
 971                                             params->blobs[i].blob.length));
 972                                 request.flags |= flags;
 973                         }
 974                         continue;
 975                 }
 976
 977                 if (strcasecmp(params->blobs[i].name, "membership_of") == 0) {
 978                         if (params->blobs[i].blob.data &&
 979                             params->blobs[i].blob.data[0] > 0) {
 980                                 strncpy(request.data.auth.require_membership_of_sid,
 981                                         (const char *)params->blobs[i].blob.data,
 982                                         sizeof(request.data.auth.require_membership_of_sid) - 1);
 983                         }
 984                         continue;
 985                 }
 986         }
 987
 988         wbc_status = wbcRequestResponse(cmd,
 989                                         &request,
 990                                         &response);
 991
 992         if (response.data.auth.nt_status != 0) {
 993                 if (error) {
 994                         wbc_status = wbc_create_error_info(NULL,
 995                                                            &response,
 996                                                            error);
 997                         BAIL_ON_WBC_ERROR(wbc_status);
 998                 }
 999
1000                 wbc_status = WBC_ERR_AUTH_ERROR;
1001                 BAIL_ON_WBC_ERROR(wbc_status);
1002         }
1003         BAIL_ON_WBC_ERROR(wbc_status);
1004
1005         if (info) {
1006                 wbc_status = wbc_create_logon_info(NULL,
1007                                                    &response,
1008                                                    info);
1009                 BAIL_ON_WBC_ERROR(wbc_status);
1010         }
1011
1012         if (policy) {
1013                 wbc_status = wbc_create_password_policy_info(NULL,
1014                                                              &response,
1015                                                              policy);
1016                 BAIL_ON_WBC_ERROR(wbc_status);
1017         }
1018
1019 done:
1020         if (response.extra_data.data)
1021                 free(response.extra_data.data);
1022
1023         return wbc_status;
1024 }
1025
1026 /* Authenticate a user with cached credentials */
1027 wbcErr wbcCredentialCache(struct wbcCredentialCacheParams *params,
1028                           struct wbcCredentialCacheInfo **info,
1029                           struct wbcAuthErrorInfo **error)
1030 {
1031         return WBC_ERR_NOT_IMPLEMENTED;
1032 }