source3/nsswitch/winbindd_pam.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind daemon - pam auth funcions
   5
   6    Copyright (C) Andrew Tridgell 2000
   7    Copyright (C) Tim Potter 2001
   8    Copyright (C) Andrew Bartlett 2001-2002
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23 */
  24
  25 #include "includes.h"
  26 #include "winbindd.h"
  27 #undef DBGC_CLASS
  28 #define DBGC_CLASS DBGC_WINBIND
  29
  30
  31 static NTSTATUS append_info3_as_ndr(TALLOC_CTX *mem_ctx,
  32                                     struct winbindd_cli_state *state,
  33                                     NET_USER_INFO_3 *info3)
  34 {
  35         prs_struct ps;
  36         uint32 size;
  37         if (!prs_init(&ps, 256 /* Random, non-zero number */, mem_ctx, MARSHALL)) {
  38                 return NT_STATUS_NO_MEMORY;
  39         }
  40         if (!net_io_user_info3("", info3, &ps, 1, 3)) {
  41                 prs_mem_free(&ps);
  42                 return NT_STATUS_UNSUCCESSFUL;
  43         }
  44
  45         size = prs_data_size(&ps);
  46         state->response.extra_data = malloc(size);
  47         if (!state->response.extra_data) {
  48                 prs_mem_free(&ps);
  49                 return NT_STATUS_NO_MEMORY;
  50         }
  51         prs_copy_all_data_out(state->response.extra_data, &ps);
  52         state->response.length += size;
  53         prs_mem_free(&ps);
  54         return NT_STATUS_OK;
  55 }
  56
  57 /**********************************************************************
  58  Authenticate a user with a clear test password
  59 **********************************************************************/
  60
  61 enum winbindd_result winbindd_pam_auth(struct winbindd_cli_state *state)
  62 {
  63         NTSTATUS result;
  64         fstring name_domain, name_user;
  65         unsigned char trust_passwd[16];
  66         time_t last_change_time;
  67         uint32 sec_channel_type;
  68         NET_USER_INFO_3 info3;
  69         struct cli_state *cli = NULL;
  70         uchar chal[8];
  71         TALLOC_CTX *mem_ctx = NULL;
  72         DATA_BLOB lm_resp;
  73         DATA_BLOB nt_resp;
  74         DOM_CRED ret_creds;
  75         int attempts = 0;
  76         unsigned char local_lm_response[24];
  77         unsigned char local_nt_response[24];
  78         struct winbindd_domain *contact_domain;
  79         BOOL retry;
  80
  81         /* Ensure null termination */
  82         state->request.data.auth.user[sizeof(state->request.data.auth.user)-1]='\0';
  83
  84         /* Ensure null termination */
  85         state->request.data.auth.pass[sizeof(state->request.data.auth.pass)-1]='\0';
  86
  87         DEBUG(3, ("[%5lu]: pam auth %s\n", (unsigned long)state->pid,
  88                   state->request.data.auth.user));
  89
  90         if (!(mem_ctx = talloc_init("winbind pam auth for %s", state->request.data.auth.user))) {
  91                 DEBUG(0, ("winbindd_pam_auth: could not talloc_init()!\n"));
  92                 result = NT_STATUS_NO_MEMORY;
  93                 goto done;
  94         }
  95
  96         /* Parse domain and username */
  97
  98         parse_domain_user(state->request.data.auth.user, name_domain, name_user);
  99
 100         /* do password magic */
 101
 102         generate_random_buffer(chal, 8, False);
 103         SMBencrypt(state->request.data.auth.pass, chal, local_lm_response);
 104
 105         SMBNTencrypt(state->request.data.auth.pass, chal, local_nt_response);
 106
 107         lm_resp = data_blob_talloc(mem_ctx, local_lm_response, sizeof(local_lm_response));
 108         nt_resp = data_blob_talloc(mem_ctx, local_nt_response, sizeof(local_nt_response));
 109
 110         /* what domain should we contact? */
 111
 112         if ( IS_DC ) {
 113                 if (!(contact_domain = find_domain_from_name(name_domain))) {
 114                         DEBUG(3, ("Authentication for domain for [%s] -> [%s]\\[%s] failed as %s is not a trusted domain\n",
 115                                   state->request.data.auth.user, name_domain, name_user, name_domain));
 116                         result = NT_STATUS_NO_SUCH_USER;
 117                         goto done;
 118                 }
 119
 120         } else {
 121                 if (is_myname(name_domain)) {
 122                         DEBUG(3, ("Authentication for domain %s (local domain to this server) not supported at this stage\n", name_domain));
 123                         result =  NT_STATUS_NO_SUCH_USER;
 124                         goto done;
 125                 }
 126
 127                 if (!(contact_domain = find_our_domain())) {
 128                         DEBUG(1, ("Authenticatoin for [%s] -> [%s]\\[%s] in our domain failed - we can't find our domain!\n",
 129                                   state->request.data.auth.user, name_domain, name_user));
 130                         result = NT_STATUS_NO_SUCH_USER;
 131                         goto done;
 132                 }
 133         }
 134
 135         if ( !get_trust_pw(contact_domain->name, trust_passwd, &last_change_time, &sec_channel_type) ) {
 136                 result = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
 137                 goto done;
 138         }
 139
 140         /* check authentication loop */
 141
 142         do {
 143                 ZERO_STRUCT(info3);
 144                 ZERO_STRUCT(ret_creds);
 145                 retry = False;
 146
 147                 /* Don't shut this down - it belongs to the connection cache code */
 148                 result = cm_get_netlogon_cli(contact_domain, trust_passwd,
 149                                              sec_channel_type, False, &cli);
 150
 151                 if (!NT_STATUS_IS_OK(result)) {
 152                         DEBUG(3, ("could not open handle to NETLOGON pipe\n"));
 153                         goto done;
 154                 }
 155
 156                 result = cli_netlogon_sam_network_logon(cli, mem_ctx,
 157                                                         &ret_creds,
 158                                                         name_user, name_domain,
 159                                                         global_myname(), chal,
 160                                                         lm_resp, nt_resp,
 161                                                         &info3);
 162                 attempts += 1;
 163
 164                 /* We have to try a second time as cm_get_netlogon_cli
 165                    might not yet have noticed that the DC has killed
 166                    our connection. */
 167
 168                 if ( cli->fd == -1 ) {
 169                         retry = True;
 170                         continue;
 171                 }
 172
 173                 /* if we get access denied, a possible cuase was that we had and open
 174                    connection to the DC, but someone changed our machine account password
 175                    out from underneath us using 'net rpc changetrustpw' */
 176
 177                 if ( NT_STATUS_V(result) == NT_STATUS_V(NT_STATUS_ACCESS_DENIED) ) {
 178                         DEBUG(3,("winbindd_pam_auth: sam_logon returned ACCESS_DENIED.  Maybe the trust account "
 179                                 "password was changed and we didn't know it.  Killing connections to domain %s\n",
 180                                 name_domain));
 181                         winbindd_cm_flush();
 182                         retry = True;
 183                         cli = NULL;
 184                 }
 185
 186         } while ( (attempts < 2) && retry );
 187
 188         clnt_deal_with_creds(cli->sess_key, &(cli->clnt_cred), &ret_creds);
 189
 190         if (NT_STATUS_IS_OK(result)) {
 191                 netsamlogon_cache_store( cli->mem_ctx, &info3 );
 192                 wcache_invalidate_samlogon(find_domain_from_name(name_domain), &info3);
 193         }
 194
 195 done:
 196         /* give us a more useful (more correct?) error code */
 197         if ((NT_STATUS_EQUAL(result, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND) || (NT_STATUS_EQUAL(result, NT_STATUS_UNSUCCESSFUL)))) {
 198                 result = NT_STATUS_NO_LOGON_SERVERS;
 199         }
 200
 201         state->response.data.auth.nt_status = NT_STATUS_V(result);
 202         fstrcpy(state->response.data.auth.nt_status_string, nt_errstr(result));
 203
 204         /* we might have given a more useful error above */
 205         if (!*state->response.data.auth.error_string)
 206                 fstrcpy(state->response.data.auth.error_string, get_friendly_nt_error_msg(result));
 207         state->response.data.auth.pam_error = nt_status_to_pam(result);
 208
 209         DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2, ("Plain-text authentication for user %s returned %s (PAM: %d)\n",
 210               state->request.data.auth.user,
 211               state->response.data.auth.nt_status_string,
 212               state->response.data.auth.pam_error));
 213
 214         if ( NT_STATUS_IS_OK(result) &&
 215              (state->request.flags & WBFLAG_PAM_AFS_TOKEN) ) {
 216
 217                 char *afsname = strdup(lp_afs_username_map());
 218                 char *cell;
 219
 220                 if (afsname == NULL) goto no_token;
 221
 222                 afsname = realloc_string_sub(afsname, "%D", name_domain);
 223                 afsname = realloc_string_sub(afsname, "%u", name_user);
 224                 afsname = realloc_string_sub(afsname, "%U", name_user);
 225
 226                 if (afsname == NULL) goto no_token;
 227
 228                 strlower_m(afsname);
 229
 230                 cell = strchr(afsname, '@');
 231
 232                 if (cell == NULL) goto no_token;
 233
 234                 *cell = '\0';
 235                 cell += 1;
 236
 237                 /* Append an AFS token string */
 238                 state->response.extra_data =
 239                         afs_createtoken_str(afsname, cell);
 240
 241                 if (state->response.extra_data != NULL)
 242                         state->response.length +=
 243                                 strlen(state->response.extra_data)+1;
 244
 245         no_token:
 246                 SAFE_FREE(afsname);
 247         }
 248
 249         if (mem_ctx)
 250                 talloc_destroy(mem_ctx);
 251
 252         return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
 253 }
 254
 255 /**********************************************************************
 256  Challenge Response Authentication Protocol
 257 **********************************************************************/
 258
 259 enum winbindd_result winbindd_pam_auth_crap(struct winbindd_cli_state *state)
 260 {
 261         NTSTATUS result;
 262         unsigned char trust_passwd[16];
 263         time_t last_change_time;
 264         uint32 sec_channel_type;
 265         NET_USER_INFO_3 info3;
 266         struct cli_state *cli = NULL;
 267         TALLOC_CTX *mem_ctx = NULL;
 268         char *name_user = NULL;
 269         const char *name_domain = NULL;
 270         const char *workstation;
 271         struct winbindd_domain *contact_domain;
 272         DOM_CRED ret_creds;
 273         int attempts = 0;
 274         BOOL retry;
 275
 276         DATA_BLOB lm_resp, nt_resp;
 277
 278         if (!state->privileged) {
 279                 char *error_string = NULL;
 280                 DEBUG(2, ("winbindd_pam_auth_crap: non-privileged access denied.  !\n"));
 281                 DEBUGADD(2, ("winbindd_pam_auth_crap: Ensure permissions on %s are set correctly.\n",
 282                              get_winbind_priv_pipe_dir()));
 283                 /* send a better message than ACCESS_DENIED */
 284                 asprintf(&error_string, "winbind client not authorized to use winbindd_pam_auth_crap.  Ensure permissions on %s are set correctly.",
 285                          get_winbind_priv_pipe_dir());
 286                 push_utf8_fstring(state->response.data.auth.error_string, error_string);
 287                 SAFE_FREE(error_string);
 288                 result =  NT_STATUS_ACCESS_DENIED;
 289                 goto done;
 290         }
 291
 292         /* Ensure null termination */
 293         state->request.data.auth_crap.user[sizeof(state->request.data.auth_crap.user)-1]=0;
 294         state->request.data.auth_crap.domain[sizeof(state->request.data.auth_crap.domain)-1]=0;
 295
 296         if (!(mem_ctx = talloc_init("winbind pam auth crap for (utf8) %s", state->request.data.auth_crap.user))) {
 297                 DEBUG(0, ("winbindd_pam_auth_crap: could not talloc_init()!\n"));
 298                 result = NT_STATUS_NO_MEMORY;
 299                 goto done;
 300         }
 301
 302         if (pull_utf8_talloc(mem_ctx, &name_user, state->request.data.auth_crap.user) == (size_t)-1) {
 303                 DEBUG(0, ("winbindd_pam_auth_crap: pull_utf8_talloc failed!\n"));
 304                 result = NT_STATUS_UNSUCCESSFUL;
 305                 goto done;
 306         }
 307
 308         if (*state->request.data.auth_crap.domain) {
 309                 char *dom = NULL;
 310                 if (pull_utf8_talloc(mem_ctx, &dom, state->request.data.auth_crap.domain) == (size_t)-1) {
 311                         DEBUG(0, ("winbindd_pam_auth_crap: pull_utf8_talloc failed!\n"));
 312                         result = NT_STATUS_UNSUCCESSFUL;
 313                         goto done;
 314                 }
 315                 name_domain = dom;
 316         } else if (lp_winbind_use_default_domain()) {
 317                 name_domain = lp_workgroup();
 318         } else {
 319                 DEBUG(5,("no domain specified with username (%s) - failing auth\n",
 320                          name_user));
 321                 result = NT_STATUS_NO_SUCH_USER;
 322                 goto done;
 323         }
 324
 325         DEBUG(3, ("[%5lu]: pam auth crap domain: %s user: %s\n", (unsigned long)state->pid,
 326                   name_domain, name_user));
 327
 328         if (*state->request.data.auth_crap.workstation) {
 329                 char *wrk = NULL;
 330                 if (pull_utf8_talloc(mem_ctx, &wrk, state->request.data.auth_crap.workstation) == (size_t)-1) {
 331                         DEBUG(0, ("winbindd_pam_auth_crap: pull_utf8_talloc failed!\n"));
 332                         result = NT_STATUS_UNSUCCESSFUL;
 333                         goto done;
 334                 }
 335                 workstation = wrk;
 336         } else {
 337                 workstation = global_myname();
 338         }
 339
 340         if (state->request.data.auth_crap.lm_resp_len > sizeof(state->request.data.auth_crap.lm_resp)
 341                 || state->request.data.auth_crap.nt_resp_len > sizeof(state->request.data.auth_crap.nt_resp)) {
 342                 DEBUG(0, ("winbindd_pam_auth_crap: invalid password length %u/%u\n",
 343                           state->request.data.auth_crap.lm_resp_len,
 344                           state->request.data.auth_crap.nt_resp_len));
 345                 result = NT_STATUS_INVALID_PARAMETER;
 346                 goto done;
 347         }
 348
 349         lm_resp = data_blob_talloc(mem_ctx, state->request.data.auth_crap.lm_resp, state->request.data.auth_crap.lm_resp_len);
 350         nt_resp = data_blob_talloc(mem_ctx, state->request.data.auth_crap.nt_resp, state->request.data.auth_crap.nt_resp_len);
 351
 352
 353         /* what domain should we contact? */
 354
 355         if ( IS_DC ) {
 356                 if (!(contact_domain = find_domain_from_name(name_domain))) {
 357                         DEBUG(3, ("Authentication for domain for [%s] -> [%s]\\[%s] failed as %s is not a trusted domain\n",
 358                                   state->request.data.auth.user, name_domain, name_user, name_domain));
 359                         result = NT_STATUS_NO_SUCH_USER;
 360                         goto done;
 361                 }
 362
 363         } else {
 364                 if (is_myname(name_domain)) {
 365                         DEBUG(3, ("Authentication for domain %s (local domain to this server) not supported at this stage\n", name_domain));
 366                         result =  NT_STATUS_NO_SUCH_USER;
 367                         goto done;
 368                 }
 369
 370                 if (!(contact_domain = find_our_domain())) {
 371                         DEBUG(1, ("Authenticatoin for [%s] -> [%s]\\[%s] in our domain failed - we can't find our domain!\n",
 372                                   state->request.data.auth.user, name_domain, name_user));
 373                         result = NT_STATUS_NO_SUCH_USER;
 374                         goto done;
 375                 }
 376         }
 377
 378         if ( !get_trust_pw(contact_domain->name, trust_passwd, &last_change_time, &sec_channel_type) ) {
 379                 result = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
 380                 goto done;
 381         }
 382
 383         do {
 384                 ZERO_STRUCT(info3);
 385                 ZERO_STRUCT(ret_creds);
 386                 retry = False;
 387
 388                 /* Don't shut this down - it belongs to the connection cache code */
 389                 result = cm_get_netlogon_cli(contact_domain, trust_passwd, sec_channel_type, False, &cli);
 390
 391                 if (!NT_STATUS_IS_OK(result)) {
 392                         DEBUG(3, ("could not open handle to NETLOGON pipe (error: %s)\n",
 393                                   nt_errstr(result)));
 394                         goto done;
 395                 }
 396
 397                 result = cli_netlogon_sam_network_logon(cli, mem_ctx,
 398                                                         &ret_creds,
 399                                                         name_user, name_domain,
 400                                                         workstation,
 401                                                         state->request.data.auth_crap.chal,
 402                                                         lm_resp, nt_resp,
 403                                                         &info3);
 404
 405                 attempts += 1;
 406
 407                 /* We have to try a second time as cm_get_netlogon_cli
 408                    might not yet have noticed that the DC has killed
 409                    our connection. */
 410
 411                 if ( cli->fd == -1 ) {
 412                         retry = True;
 413                         continue;
 414                 }
 415
 416                 /* if we get access denied, a possible cause was that we had and open
 417                    connection to the DC, but someone changed our machine account password
 418                    out from underneath us using 'net rpc changetrustpw' */
 419
 420                 if ( NT_STATUS_V(result) == NT_STATUS_V(NT_STATUS_ACCESS_DENIED) ) {
 421                         DEBUG(3,("winbindd_pam_auth_crap: sam_logon returned ACCESS_DENIED.  Maybe the trust account "
 422                                 "password was changed and we didn't know it.  Killing connections to domain %s\n",
 423                                 contact_domain->name));
 424                         winbindd_cm_flush();
 425                         retry = True;
 426                         cli = NULL;
 427                 }
 428
 429         } while ( (attempts < 2) && retry );
 430
 431         clnt_deal_with_creds(cli->sess_key, &(cli->clnt_cred), &ret_creds);
 432
 433         if (NT_STATUS_IS_OK(result)) {
 434                 netsamlogon_cache_store( cli->mem_ctx, &info3 );
 435                 wcache_invalidate_samlogon(find_domain_from_name(name_domain), &info3);
 436
 437                 if (state->request.flags & WBFLAG_PAM_INFO3_NDR) {
 438                         result = append_info3_as_ndr(mem_ctx, state, &info3);
 439                 } else if (state->request.flags & WBFLAG_PAM_UNIX_NAME) {
 440                         /* ntlm_auth should return the unix username, per
 441                            'winbind use default domain' settings and the like */
 442
 443                         fstring username_out;
 444                         const char *nt_username, *nt_domain;
 445                         if (!(nt_username = unistr2_tdup(mem_ctx, &(info3.uni_user_name)))) {
 446                                 /* If the server didn't give us one, just use the one we sent them */
 447                                 nt_username = name_user;
 448                         }
 449
 450                         if (!(nt_domain = unistr2_tdup(mem_ctx, &(info3.uni_logon_dom)))) {
 451                                 /* If the server didn't give us one, just use the one we sent them */
 452                                 nt_domain = name_domain;
 453                         }
 454
 455                         fill_domain_username(username_out, nt_domain, nt_username);
 456
 457                         DEBUG(5, ("Setting unix username to [%s]\n", username_out));
 458
 459                         /* this interface is in UTF8 */
 460                         if (push_utf8_allocate((char **)&state->response.extra_data, username_out) == -1) {
 461                                 result = NT_STATUS_NO_MEMORY;
 462                                 goto done;
 463                         }
 464                         state->response.length +=  strlen(state->response.extra_data)+1;
 465                 }
 466
 467                 if (state->request.flags & WBFLAG_PAM_NTKEY) {
 468                         memcpy(state->response.data.auth.nt_session_key, info3.user_sess_key, sizeof(state->response.data.auth.nt_session_key) /* 16 */);
 469                 }
 470                 if (state->request.flags & WBFLAG_PAM_LMKEY) {
 471                         memcpy(state->response.data.auth.first_8_lm_hash, info3.padding, sizeof(state->response.data.auth.first_8_lm_hash) /* 8 */);
 472                 }
 473         }
 474
 475 done:
 476         /* give us a more useful (more correct?) error code */
 477         if ((NT_STATUS_EQUAL(result, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND) || (NT_STATUS_EQUAL(result, NT_STATUS_UNSUCCESSFUL)))) {
 478                 result = NT_STATUS_NO_LOGON_SERVERS;
 479         }
 480
 481         state->response.data.auth.nt_status = NT_STATUS_V(result);
 482         push_utf8_fstring(state->response.data.auth.nt_status_string, nt_errstr(result));
 483
 484         /* we might have given a more useful error above */
 485         if (!*state->response.data.auth.error_string)
 486                 push_utf8_fstring(state->response.data.auth.error_string, get_friendly_nt_error_msg(result));
 487         state->response.data.auth.pam_error = nt_status_to_pam(result);
 488
 489         DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2,
 490               ("NTLM CRAP authentication for user [%s]\\[%s] returned %s (PAM: %d)\n",
 491                name_domain,
 492                name_user,
 493                state->response.data.auth.nt_status_string,
 494                state->response.data.auth.pam_error));
 495
 496         if (mem_ctx)
 497                 talloc_destroy(mem_ctx);
 498
 499         return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
 500 }
 501
 502 /* Change a user password */
 503
 504 enum winbindd_result winbindd_pam_chauthtok(struct winbindd_cli_state *state)
 505 {
 506         NTSTATUS result;
 507         char *oldpass, *newpass;
 508         fstring domain, user;
 509         CLI_POLICY_HND *hnd;
 510         TALLOC_CTX *mem_ctx;
 511         struct winbindd_domain *contact_domain;
 512
 513         DEBUG(3, ("[%5lu]: pam chauthtok %s\n", (unsigned long)state->pid,
 514                 state->request.data.chauthtok.user));
 515
 516         if (!(mem_ctx = talloc_init("winbind password change for (utf8) %s",
 517                                     state->request.data.chauthtok.user))) {
 518                 DEBUG(0, ("winbindd_pam_auth_crap: could not talloc_init()!\n"));
 519                 result = NT_STATUS_NO_MEMORY;
 520                 goto done;
 521         }
 522
 523         /* Setup crap */
 524
 525         if (state == NULL)
 526                 return WINBINDD_ERROR;
 527
 528         parse_domain_user(state->request.data.chauthtok.user, domain, user);
 529
 530         if (!(contact_domain = find_domain_from_name(domain))) {
 531                 DEBUG(3, ("Cannot change password for [%s] -> [%s]\\[%s] as %s is not a trusted domain\n",
 532                           state->request.data.chauthtok.user, domain, user, domain));
 533                 result = NT_STATUS_NO_SUCH_USER;
 534                 goto done;
 535         }
 536
 537         /* Change password */
 538
 539         oldpass = state->request.data.chauthtok.oldpass;
 540         newpass = state->request.data.chauthtok.newpass;
 541
 542         /* Get sam handle */
 543
 544         if (!NT_STATUS_IS_OK(result = cm_get_sam_handle(contact_domain, &hnd)) ) {
 545                 DEBUG(1, ("could not get SAM handle on DC for %s\n", domain));
 546                 goto done;
 547         }
 548
 549         result = cli_samr_chgpasswd_user(hnd->cli, mem_ctx, user, newpass, oldpass);
 550
 551 done:
 552         state->response.data.auth.nt_status = NT_STATUS_V(result);
 553         fstrcpy(state->response.data.auth.nt_status_string, nt_errstr(result));
 554         fstrcpy(state->response.data.auth.error_string, nt_errstr(result));
 555         state->response.data.auth.pam_error = nt_status_to_pam(result);
 556
 557         DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2,
 558               ("Password change for user [%s]\\[%s] returned %s (PAM: %d)\n",
 559                domain,
 560                user,
 561                state->response.data.auth.nt_status_string,
 562                state->response.data.auth.pam_error));
 563
 564         if (mem_ctx)
 565                 talloc_destroy(mem_ctx);
 566
 567         return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
 568 }