source/nsswitch/winbindd_user.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind daemon - user related functions
   5
   6    Copyright (C) Tim Potter 2000
   7    Copyright (C) Jeremy Allison 2001.
   8    Copyright (C) Gerald (Jerry) Carter 2003.
   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
  28 #undef DBGC_CLASS
  29 #define DBGC_CLASS DBGC_WINBIND
  30
  31 extern userdom_struct current_user_info;
  32
  33 static BOOL fillup_pw_field(const char *lp_template,
  34                             const char *username,
  35                             const char *domname,
  36                             uid_t uid,
  37                             gid_t gid,
  38                             const char *in,
  39                             fstring out)
  40 {
  41         char *templ;
  42
  43         if (out == NULL)
  44                 return False;
  45
  46         if (in && !strequal(in,"") && lp_security() == SEC_ADS && lp_winbind_sfu_support()) {
  47                 safe_strcpy(out, in, sizeof(fstring) - 1);
  48                 return True;
  49         }
  50
  51         /* Home directory and shell - use template config parameters.  The
  52            defaults are /tmp for the home directory and /bin/false for
  53            shell. */
  54
  55         /* The substitution of %U and %D in the 'template homedir' is done
  56            by alloc_sub_specified() below. */
  57
  58         templ = alloc_sub_specified(lp_template, username, domname, uid, gid);
  59
  60         if (!templ)
  61                 return False;
  62
  63         safe_strcpy(out, templ, sizeof(fstring) - 1);
  64         SAFE_FREE(templ);
  65
  66         return True;
  67
  68 }
  69 /* Fill a pwent structure with information we have obtained */
  70
  71 static BOOL winbindd_fill_pwent(char *dom_name, char *user_name,
  72                                 DOM_SID *user_sid, DOM_SID *group_sid,
  73                                 char *full_name, char *homedir, char *shell,
  74                                 struct winbindd_pw *pw)
  75 {
  76         fstring output_username;
  77         fstring sid_string;
  78
  79         if (!pw || !dom_name || !user_name)
  80                 return False;
  81
  82         /* Resolve the uid number */
  83
  84         if (!NT_STATUS_IS_OK(idmap_sid_to_uid(user_sid, &pw->pw_uid, 0))) {
  85                 DEBUG(1, ("error getting user id for sid %s\n", sid_to_string(sid_string, user_sid)));
  86                 return False;
  87         }
  88
  89         /* Resolve the gid number */
  90
  91         if (!NT_STATUS_IS_OK(idmap_sid_to_gid(group_sid, &pw->pw_gid, 0))) {
  92                 DEBUG(1, ("error getting group id for sid %s\n", sid_to_string(sid_string, group_sid)));
  93                 return False;
  94         }
  95
  96         strlower_m(user_name);
  97
  98         /* Username */
  99
 100         fill_domain_username(output_username, dom_name, user_name);
 101
 102         safe_strcpy(pw->pw_name, output_username, sizeof(pw->pw_name) - 1);
 103
 104         /* Full name (gecos) */
 105
 106         safe_strcpy(pw->pw_gecos, full_name, sizeof(pw->pw_gecos) - 1);
 107
 108         /* Home directory and shell - use template config parameters.  The
 109            defaults are /tmp for the home directory and /bin/false for
 110            shell. */
 111
 112         /* The substitution of %U and %D in the 'template homedir' is done
 113            by alloc_sub_specified() below. */
 114
 115         fstrcpy(current_user_info.domain, dom_name);
 116
 117         if (!fillup_pw_field(lp_template_homedir(), user_name, dom_name,
 118                              pw->pw_uid, pw->pw_gid, homedir, pw->pw_dir))
 119                 return False;
 120
 121         if (!fillup_pw_field(lp_template_shell(), user_name, dom_name,
 122                              pw->pw_uid, pw->pw_gid, shell, pw->pw_shell))
 123                 return False;
 124
 125         /* Password - set to "x" as we can't generate anything useful here.
 126            Authentication can be done using the pam_winbind module. */
 127
 128         safe_strcpy(pw->pw_passwd, "x", sizeof(pw->pw_passwd) - 1);
 129
 130         return True;
 131 }
 132
 133 /* Wrapper for domain->methods->query_user, only on the parent->child pipe */
 134
 135 enum winbindd_result winbindd_dual_userinfo(struct winbindd_domain *domain,
 136                                             struct winbindd_cli_state *state)
 137 {
 138         DOM_SID sid;
 139         WINBIND_USERINFO user_info;
 140         NTSTATUS status;
 141
 142         /* Ensure null termination */
 143         state->request.data.sid[sizeof(state->request.data.sid)-1]='\0';
 144
 145         DEBUG(3, ("[%5lu]: lookupsid %s\n", (unsigned long)state->pid,
 146                   state->request.data.sid));
 147
 148         if (!string_to_sid(&sid, state->request.data.sid)) {
 149                 DEBUG(5, ("%s not a SID\n", state->request.data.sid));
 150                 return WINBINDD_ERROR;
 151         }
 152
 153         status = domain->methods->query_user(domain, state->mem_ctx,
 154                                              &sid, &user_info);
 155         if (!NT_STATUS_IS_OK(status)) {
 156                 DEBUG(1, ("error getting user info for sid %s\n",
 157                           sid_string_static(&sid)));
 158                 return WINBINDD_ERROR;
 159         }
 160
 161         fstrcpy(state->response.data.user_info.acct_name, user_info.acct_name);
 162         fstrcpy(state->response.data.user_info.full_name, user_info.full_name);
 163         fstrcpy(state->response.data.user_info.homedir, user_info.homedir);
 164         fstrcpy(state->response.data.user_info.shell, user_info.shell);
 165         if (!sid_peek_check_rid(&domain->sid, &user_info.group_sid,
 166                                 &state->response.data.user_info.group_rid)) {
 167                 DEBUG(1, ("Could not extract group rid out of %s\n",
 168                           sid_string_static(&sid)));
 169                 return WINBINDD_ERROR;
 170         }
 171
 172         return WINBINDD_OK;
 173 }
 174
 175 struct getpwsid_state {
 176         struct winbindd_cli_state *state;
 177         struct winbindd_domain *domain;
 178         char *username;
 179         char *fullname;
 180         char *homedir;
 181         char *shell;
 182         DOM_SID user_sid;
 183         uid_t uid;
 184         DOM_SID group_sid;
 185         gid_t gid;
 186 };
 187
 188 static void getpwsid_queryuser_recv(void *private_data, BOOL success,
 189                                     const char *acct_name,
 190                                     const char *full_name,
 191                                     const char *homedir,
 192                                     const char *shell,
 193                                     uint32 group_rid);
 194 static void getpwsid_sid2uid_recv(void *private_data, BOOL success, uid_t uid);
 195 static void getpwsid_sid2gid_recv(void *private_data, BOOL success, gid_t gid);
 196
 197 static void winbindd_getpwsid(struct winbindd_cli_state *state,
 198                               const DOM_SID *sid)
 199 {
 200         struct getpwsid_state *s;
 201
 202         s = TALLOC_P(state->mem_ctx, struct getpwsid_state);
 203         if (s == NULL) {
 204                 DEBUG(0, ("talloc failed\n"));
 205                 goto error;
 206         }
 207
 208         s->state = state;
 209         s->domain = find_domain_from_sid_noinit(sid);
 210         if (s->domain == NULL) {
 211                 DEBUG(3, ("Could not find domain for sid %s\n",
 212                           sid_string_static(sid)));
 213                 goto error;
 214         }
 215
 216         sid_copy(&s->user_sid, sid);
 217
 218         query_user_async(s->state->mem_ctx, s->domain, sid,
 219                          getpwsid_queryuser_recv, s);
 220         return;
 221
 222  error:
 223         request_error(state);
 224 }
 225
 226 static void getpwsid_queryuser_recv(void *private_data, BOOL success,
 227                                     const char *acct_name,
 228                                     const char *full_name,
 229                                     const char *homedir,
 230                                     const char *shell,
 231                                     uint32 group_rid)
 232 {
 233         struct getpwsid_state *s =
 234                 talloc_get_type_abort(private_data, struct getpwsid_state);
 235
 236         if (!success) {
 237                 DEBUG(5, ("Could not query user %s\\%s\n", s->domain->name,
 238                           s->username));
 239                 request_error(s->state);
 240                 return;
 241         }
 242
 243         s->username = talloc_strdup(s->state->mem_ctx, acct_name);
 244         s->fullname = talloc_strdup(s->state->mem_ctx, full_name);
 245         s->homedir = talloc_strdup(s->state->mem_ctx, homedir);
 246         s->shell = talloc_strdup(s->state->mem_ctx, shell);
 247         sid_copy(&s->group_sid, &s->domain->sid);
 248         sid_append_rid(&s->group_sid, group_rid);
 249
 250         winbindd_sid2uid_async(s->state->mem_ctx, &s->user_sid,
 251                                getpwsid_sid2uid_recv, s);
 252 }
 253
 254 static void getpwsid_sid2uid_recv(void *private_data, BOOL success, uid_t uid)
 255 {
 256         struct getpwsid_state *s =
 257                 talloc_get_type_abort(private_data, struct getpwsid_state);
 258
 259         if (!success) {
 260                 DEBUG(5, ("Could not query user's %s\\%s uid\n",
 261                           s->domain->name, s->username));
 262                 request_error(s->state);
 263                 return;
 264         }
 265
 266         s->uid = uid;
 267         winbindd_sid2gid_async(s->state->mem_ctx, &s->group_sid,
 268                                getpwsid_sid2gid_recv, s);
 269 }
 270
 271 static void getpwsid_sid2gid_recv(void *private_data, BOOL success, gid_t gid)
 272 {
 273         struct getpwsid_state *s =
 274                 talloc_get_type_abort(private_data, struct getpwsid_state);
 275         struct winbindd_pw *pw;
 276         fstring output_username;
 277
 278         if (!success) {
 279                 DEBUG(5, ("Could not query user's %s\\%s\n gid",
 280                           s->domain->name, s->username));
 281                 goto failed;
 282         }
 283
 284         s->gid = gid;
 285
 286         pw = &s->state->response.data.pw;
 287         pw->pw_uid = s->uid;
 288         pw->pw_gid = s->gid;
 289         fill_domain_username(output_username, s->domain->name, s->username);
 290         safe_strcpy(pw->pw_name, output_username, sizeof(pw->pw_name) - 1);
 291         safe_strcpy(pw->pw_gecos, s->fullname, sizeof(pw->pw_gecos) - 1);
 292
 293         fstrcpy(current_user_info.domain, s->domain->name);
 294
 295         if (!fillup_pw_field(lp_template_homedir(), s->username, s->domain->name,
 296                              pw->pw_uid, pw->pw_gid, s->homedir, pw->pw_dir)) {
 297                 DEBUG(5, ("Could not compose homedir\n"));
 298                 goto failed;
 299         }
 300
 301         if (!fillup_pw_field(lp_template_shell(), s->username, s->domain->name,
 302                              pw->pw_uid, pw->pw_gid, s->shell, pw->pw_shell)) {
 303                 DEBUG(5, ("Could not compose shell\n"));
 304                 goto failed;
 305         }
 306
 307         /* Password - set to "x" as we can't generate anything useful here.
 308            Authentication can be done using the pam_winbind module. */
 309
 310         safe_strcpy(pw->pw_passwd, "x", sizeof(pw->pw_passwd) - 1);
 311
 312         request_ok(s->state);
 313         return;
 314
 315  failed:
 316         request_error(s->state);
 317 }
 318
 319 /* Return a password structure from a username.  */
 320
 321 static void getpwnam_name2sid_recv(void *private_data, BOOL success,
 322                                    const DOM_SID *sid, enum SID_NAME_USE type);
 323
 324 void winbindd_getpwnam(struct winbindd_cli_state *state)
 325 {
 326         struct winbindd_domain *domain;
 327         fstring domname, username;
 328
 329         /* Ensure null termination */
 330         state->request.data.username[sizeof(state->request.data.username)-1]='\0';
 331
 332         DEBUG(3, ("[%5lu]: getpwnam %s\n", (unsigned long)state->pid,
 333                   state->request.data.username));
 334
 335         if (!parse_domain_user(state->request.data.username, domname,
 336                                username)) {
 337                 DEBUG(0, ("Could not parse domain user: %s\n",
 338                           state->request.data.username));
 339                 request_error(state);
 340                 return;
 341         }
 342
 343         /* Get info for the domain */
 344
 345         domain = find_domain_from_name(domname);
 346
 347         if (domain == NULL) {
 348                 DEBUG(7, ("could not find domain entry for domain %s\n",
 349                           domname));
 350                 request_error(state);
 351                 return;
 352         }
 353
 354         if ( strequal(domname, lp_workgroup()) && lp_winbind_trusted_domains_only() ) {
 355                 DEBUG(7,("winbindd_getpwnam: My domain -- rejecting getpwnam() for %s\\%s.\n",
 356                         domname, username));
 357                 request_error(state);
 358                 return;
 359         }
 360
 361         /* Get rid and name type from name.  The following costs 1 packet */
 362
 363         winbindd_lookupname_async(state->mem_ctx, domname, username,
 364                                   getpwnam_name2sid_recv, state);
 365 }
 366
 367 static void getpwnam_name2sid_recv(void *private_data, BOOL success,
 368                                    const DOM_SID *sid, enum SID_NAME_USE type)
 369 {
 370         struct winbindd_cli_state *state = private_data;
 371
 372         if (!success) {
 373                 DEBUG(5, ("Could not lookup name for user %s\n",
 374                           state->request.data.username));
 375                 request_error(state);
 376                 return;
 377         }
 378
 379         if ((type != SID_NAME_USER) && (type != SID_NAME_COMPUTER)) {
 380                 DEBUG(5, ("%s is not a user\n", state->request.data.username));
 381                 request_error(state);
 382                 return;
 383         }
 384
 385         winbindd_getpwsid(state, sid);
 386 }
 387
 388 /* Return a password structure given a uid number */
 389
 390 void winbindd_getpwuid(struct winbindd_cli_state *state)
 391 {
 392         DOM_SID user_sid;
 393         NTSTATUS status;
 394
 395         /* Bug out if the uid isn't in the winbind range */
 396
 397         if ((state->request.data.uid < server_state.uid_low ) ||
 398             (state->request.data.uid > server_state.uid_high)) {
 399                 request_error(state);
 400                 return;
 401         }
 402
 403         DEBUG(3, ("[%5lu]: getpwuid %lu\n", (unsigned long)state->pid,
 404                   (unsigned long)state->request.data.uid));
 405
 406         status = idmap_uid_to_sid(&user_sid, state->request.data.uid,
 407                                   ID_QUERY_ONLY | ID_CACHE_ONLY);
 408
 409         if (!NT_STATUS_IS_OK(status)) {
 410                 DEBUG(5, ("Could not find SID for uid %lu\n",
 411                           (unsigned long)state->request.data.uid));
 412                 request_error(state);
 413                 return;
 414         }
 415
 416         winbindd_getpwsid(state, &user_sid);
 417 }
 418
 419 /*
 420  * set/get/endpwent functions
 421  */
 422
 423 /* Rewind file pointer for ntdom passwd database */
 424
 425 static BOOL winbindd_setpwent_internal(struct winbindd_cli_state *state)
 426 {
 427         struct winbindd_domain *domain;
 428
 429         DEBUG(3, ("[%5lu]: setpwent\n", (unsigned long)state->pid));
 430
 431         /* Check user has enabled this */
 432
 433         if (!lp_winbind_enum_users()) {
 434                 return False;
 435         }
 436
 437         /* Free old static data if it exists */
 438
 439         if (state->getpwent_state != NULL) {
 440                 free_getent_state(state->getpwent_state);
 441                 state->getpwent_state = NULL;
 442         }
 443
 444 #if 0   /* JERRY */
 445         /* add any local users we have */
 446
 447         if ( (domain_state = (struct getent_state *)malloc(sizeof(struct getent_state))) == NULL )
 448                 return False;
 449
 450         ZERO_STRUCTP(domain_state);
 451
 452         /* Add to list of open domains */
 453
 454         DLIST_ADD(state->getpwent_state, domain_state);
 455 #endif
 456
 457         /* Create sam pipes for each domain we know about */
 458
 459         for(domain = domain_list(); domain != NULL; domain = domain->next) {
 460                 struct getent_state *domain_state;
 461
 462
 463                 /* don't add our domaina if we are a PDC or if we
 464                    are a member of a Samba domain */
 465
 466                 if ( (IS_DC || lp_winbind_trusted_domains_only())
 467                         && strequal(domain->name, lp_workgroup()) )
 468                 {
 469                         continue;
 470                 }
 471
 472                 /* Create a state record for this domain */
 473
 474                 if ((domain_state = SMB_MALLOC_P(struct getent_state)) == NULL) {
 475                         DEBUG(0, ("malloc failed\n"));
 476                         return False;
 477                 }
 478
 479                 ZERO_STRUCTP(domain_state);
 480
 481                 fstrcpy(domain_state->domain_name, domain->name);
 482
 483                 /* Add to list of open domains */
 484
 485                 DLIST_ADD(state->getpwent_state, domain_state);
 486         }
 487
 488         state->getpwent_initialized = True;
 489         return True;
 490 }
 491
 492 void winbindd_setpwent(struct winbindd_cli_state *state)
 493 {
 494         if (winbindd_setpwent_internal(state)) {
 495                 request_ok(state);
 496         } else {
 497                 request_error(state);
 498         }
 499 }
 500
 501 /* Close file pointer to ntdom passwd database */
 502
 503 void winbindd_endpwent(struct winbindd_cli_state *state)
 504 {
 505         DEBUG(3, ("[%5lu]: endpwent\n", (unsigned long)state->pid));
 506
 507         free_getent_state(state->getpwent_state);
 508         state->getpwent_initialized = False;
 509         state->getpwent_state = NULL;
 510         request_ok(state);
 511 }
 512
 513 /* Get partial list of domain users for a domain.  We fill in the sam_entries,
 514    and num_sam_entries fields with domain user information.  The dispinfo_ndx
 515    field is incremented to the index of the next user to fetch.  Return True if
 516    some users were returned, False otherwise. */
 517
 518 static BOOL get_sam_user_entries(struct getent_state *ent, TALLOC_CTX *mem_ctx)
 519 {
 520         NTSTATUS status;
 521         uint32 num_entries;
 522         WINBIND_USERINFO *info;
 523         struct getpwent_user *name_list = NULL;
 524         BOOL result = False;
 525         struct winbindd_domain *domain;
 526         struct winbindd_methods *methods;
 527         unsigned int i;
 528
 529         if (ent->num_sam_entries)
 530                 return False;
 531
 532         if (!(domain = find_domain_from_name(ent->domain_name))) {
 533                 DEBUG(3, ("no such domain %s in get_sam_user_entries\n",
 534                           ent->domain_name));
 535                 return False;
 536         }
 537
 538         methods = domain->methods;
 539
 540         /* Free any existing user info */
 541
 542         SAFE_FREE(ent->sam_entries);
 543         ent->num_sam_entries = 0;
 544
 545         /* Call query_user_list to get a list of usernames and user rids */
 546
 547         num_entries = 0;
 548
 549         status = methods->query_user_list(domain, mem_ctx, &num_entries,
 550                                           &info);
 551
 552         if (num_entries) {
 553                 struct getpwent_user *tnl;
 554
 555                 tnl = SMB_REALLOC_ARRAY(name_list, struct getpwent_user, ent->num_sam_entries + num_entries);
 556
 557                 if (!tnl) {
 558                         DEBUG(0,("get_sam_user_entries realloc failed.\n"));
 559                         SAFE_FREE(name_list);
 560                         goto done;
 561                 } else
 562                         name_list = tnl;
 563         }
 564
 565         for (i = 0; i < num_entries; i++) {
 566                 /* Store account name and gecos */
 567                 if (!info[i].acct_name) {
 568                         fstrcpy(name_list[ent->num_sam_entries + i].name, "");
 569                 } else {
 570                         fstrcpy(name_list[ent->num_sam_entries + i].name,
 571                                 info[i].acct_name);
 572                 }
 573                 if (!info[i].full_name) {
 574                         fstrcpy(name_list[ent->num_sam_entries + i].gecos, "");
 575                 } else {
 576                         fstrcpy(name_list[ent->num_sam_entries + i].gecos,
 577                                 info[i].full_name);
 578                 }
 579                 if (!info[i].homedir) {
 580                         fstrcpy(name_list[ent->num_sam_entries + i].homedir, "");
 581                 } else {
 582                         fstrcpy(name_list[ent->num_sam_entries + i].homedir,
 583                                 info[i].homedir);
 584                 }
 585                 if (!info[i].shell) {
 586                         fstrcpy(name_list[ent->num_sam_entries + i].shell, "");
 587                 } else {
 588                         fstrcpy(name_list[ent->num_sam_entries + i].shell,
 589                                 info[i].shell);
 590                 }
 591
 592
 593                 /* User and group ids */
 594                 sid_copy(&name_list[ent->num_sam_entries+i].user_sid,
 595                          &info[i].user_sid);
 596                 sid_copy(&name_list[ent->num_sam_entries+i].group_sid,
 597                          &info[i].group_sid);
 598         }
 599
 600         ent->num_sam_entries += num_entries;
 601
 602         /* Fill in remaining fields */
 603
 604         ent->sam_entries = name_list;
 605         ent->sam_entry_index = 0;
 606         result = ent->num_sam_entries > 0;
 607
 608  done:
 609
 610         return result;
 611 }
 612
 613 /* Fetch next passwd entry from ntdom database */
 614
 615 #define MAX_GETPWENT_USERS 500
 616
 617 void winbindd_getpwent(struct winbindd_cli_state *state)
 618 {
 619         struct getent_state *ent;
 620         struct winbindd_pw *user_list;
 621         int num_users, user_list_ndx = 0, i;
 622
 623         DEBUG(3, ("[%5lu]: getpwent\n", (unsigned long)state->pid));
 624
 625         /* Check user has enabled this */
 626
 627         if (!lp_winbind_enum_users()) {
 628                 request_error(state);
 629                 return;
 630         }
 631
 632         /* Allocate space for returning a chunk of users */
 633
 634         num_users = MIN(MAX_GETPWENT_USERS, state->request.data.num_entries);
 635
 636         if ((state->response.extra_data = SMB_MALLOC_ARRAY(struct winbindd_pw, num_users)) == NULL) {
 637                 request_error(state);
 638                 return;
 639         }
 640
 641         memset(state->response.extra_data, 0, num_users *
 642                sizeof(struct winbindd_pw));
 643
 644         user_list = (struct winbindd_pw *)state->response.extra_data;
 645
 646         if (!state->getpwent_initialized)
 647                 winbindd_setpwent_internal(state);
 648
 649         if (!(ent = state->getpwent_state)) {
 650                 request_error(state);
 651                 return;
 652         }
 653
 654         /* Start sending back users */
 655
 656         for (i = 0; i < num_users; i++) {
 657                 struct getpwent_user *name_list = NULL;
 658                 uint32 result;
 659
 660                 /* Do we need to fetch another chunk of users? */
 661
 662                 if (ent->num_sam_entries == ent->sam_entry_index) {
 663
 664                         while(ent &&
 665                               !get_sam_user_entries(ent, state->mem_ctx)) {
 666                                 struct getent_state *next_ent;
 667
 668                                 /* Free state information for this domain */
 669
 670                                 SAFE_FREE(ent->sam_entries);
 671
 672                                 next_ent = ent->next;
 673                                 DLIST_REMOVE(state->getpwent_state, ent);
 674
 675                                 SAFE_FREE(ent);
 676                                 ent = next_ent;
 677                         }
 678
 679                         /* No more domains */
 680
 681                         if (!ent)
 682                                 break;
 683                 }
 684
 685                 name_list = ent->sam_entries;
 686
 687                 /* Lookup user info */
 688
 689                 result = winbindd_fill_pwent(
 690                         ent->domain_name,
 691                         name_list[ent->sam_entry_index].name,
 692                         &name_list[ent->sam_entry_index].user_sid,
 693                         &name_list[ent->sam_entry_index].group_sid,
 694                         name_list[ent->sam_entry_index].gecos,
 695                         name_list[ent->sam_entry_index].homedir,
 696                         name_list[ent->sam_entry_index].shell,
 697                         &user_list[user_list_ndx]);
 698
 699                 ent->sam_entry_index++;
 700
 701                 /* Add user to return list */
 702
 703                 if (result) {
 704
 705                         user_list_ndx++;
 706                         state->response.data.num_entries++;
 707                         state->response.length +=
 708                                 sizeof(struct winbindd_pw);
 709
 710                 } else
 711                         DEBUG(1, ("could not lookup domain user %s\n",
 712                                   name_list[ent->sam_entry_index].name));
 713         }
 714
 715         /* Out of domains */
 716
 717         if (user_list_ndx > 0)
 718                 request_ok(state);
 719         else
 720                 request_error(state);
 721 }
 722
 723 /* List domain users without mapping to unix ids */
 724
 725 void winbindd_list_users(struct winbindd_cli_state *state)
 726 {
 727         struct winbindd_domain *domain;
 728         WINBIND_USERINFO *info;
 729         const char *which_domain;
 730         uint32 num_entries = 0, total_entries = 0;
 731         char *ted, *extra_data = NULL;
 732         int extra_data_len = 0;
 733         enum winbindd_result rv = WINBINDD_ERROR;
 734
 735         DEBUG(3, ("[%5lu]: list users\n", (unsigned long)state->pid));
 736
 737         /* Ensure null termination */
 738         state->request.domain_name[sizeof(state->request.domain_name)-1]='\0';
 739         which_domain = state->request.domain_name;
 740
 741         /* Enumerate over trusted domains */
 742
 743         for (domain = domain_list(); domain; domain = domain->next) {
 744                 NTSTATUS status;
 745                 struct winbindd_methods *methods;
 746                 unsigned int i;
 747
 748                 /* if we have a domain name restricting the request and this
 749                    one in the list doesn't match, then just bypass the remainder
 750                    of the loop */
 751
 752                 if ( *which_domain && !strequal(which_domain, domain->name) )
 753                         continue;
 754
 755                 methods = domain->methods;
 756
 757                 /* Query display info */
 758                 status = methods->query_user_list(domain, state->mem_ctx,
 759                                                   &num_entries, &info);
 760
 761                 if (num_entries == 0)
 762                         continue;
 763
 764                 /* Allocate some memory for extra data */
 765                 total_entries += num_entries;
 766
 767                 ted = SMB_REALLOC(extra_data, sizeof(fstring) * total_entries);
 768
 769                 if (!ted) {
 770                         DEBUG(0,("failed to enlarge buffer!\n"));
 771                         SAFE_FREE(extra_data);
 772                         goto done;
 773                 } else
 774                         extra_data = ted;
 775
 776                 /* Pack user list into extra data fields */
 777
 778                 for (i = 0; i < num_entries; i++) {
 779                         fstring acct_name, name;
 780
 781                         if (!info[i].acct_name) {
 782                                 fstrcpy(acct_name, "");
 783                         } else {
 784                                 fstrcpy(acct_name, info[i].acct_name);
 785                         }
 786
 787                         fill_domain_username(name, domain->name, acct_name);
 788
 789                                 /* Append to extra data */
 790                         memcpy(&extra_data[extra_data_len], name,
 791                                strlen(name));
 792                         extra_data_len += strlen(name);
 793                         extra_data[extra_data_len++] = ',';
 794                 }
 795         }
 796
 797         /* Assign extra_data fields in response structure */
 798
 799         if (extra_data) {
 800                 extra_data[extra_data_len - 1] = '\0';
 801                 state->response.extra_data = extra_data;
 802                 state->response.length += extra_data_len;
 803         }
 804
 805         /* No domains responded but that's still OK so don't return an
 806            error. */
 807
 808         rv = WINBINDD_OK;
 809
 810  done:
 811
 812         if (rv == WINBINDD_OK)
 813                 request_ok(state);
 814         else
 815                 request_error(state);
 816 }