source3/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 static BOOL fillup_pw_field(const char *lp_template,
  32                             const char *username,
  33                             const char *domname,
  34                             uid_t uid,
  35                             gid_t gid,
  36                             const char *in,
  37                             fstring out)
  38 {
  39         char *templ;
  40
  41         if (out == NULL)
  42                 return False;
  43
  44         /* The substitution of %U and %D in the 'template
  45            homedir' is done by talloc_sub_specified() below.
  46            If we have an in string (which means the value has already
  47            been set in the nss_info backend), then use that.
  48            Otherwise use the template value passed in. */
  49
  50         if ( in && !strequal(in,"") && lp_security() == SEC_ADS ) {
  51                 templ = talloc_sub_specified(NULL, in,
  52                                              username, domname,
  53                                      uid, gid);
  54         } else {
  55                 templ = talloc_sub_specified(NULL, lp_template,
  56                                              username, domname,
  57                                              uid, gid);
  58         }
  59
  60         if (!templ)
  61                 return False;
  62
  63         safe_strcpy(out, templ, sizeof(fstring) - 1);
  64         TALLOC_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))) {
  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))) {
  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, True);
 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         if (!fillup_pw_field(lp_template_homedir(), user_name, dom_name,
 113                              pw->pw_uid, pw->pw_gid, homedir, pw->pw_dir))
 114                 return False;
 115
 116         if (!fillup_pw_field(lp_template_shell(), user_name, dom_name,
 117                              pw->pw_uid, pw->pw_gid, shell, pw->pw_shell))
 118                 return False;
 119
 120         /* Password - set to "*" as we can't generate anything useful here.
 121            Authentication can be done using the pam_winbind module. */
 122
 123         safe_strcpy(pw->pw_passwd, "*", sizeof(pw->pw_passwd) - 1);
 124
 125         return True;
 126 }
 127
 128 /* Wrapper for domain->methods->query_user, only on the parent->child pipe */
 129
 130 enum winbindd_result winbindd_dual_userinfo(struct winbindd_domain *domain,
 131                                             struct winbindd_cli_state *state)
 132 {
 133         DOM_SID sid;
 134         WINBIND_USERINFO user_info;
 135         NTSTATUS status;
 136
 137         /* Ensure null termination */
 138         state->request.data.sid[sizeof(state->request.data.sid)-1]='\0';
 139
 140         DEBUG(3, ("[%5lu]: lookupsid %s\n", (unsigned long)state->pid,
 141                   state->request.data.sid));
 142
 143         if (!string_to_sid(&sid, state->request.data.sid)) {
 144                 DEBUG(5, ("%s not a SID\n", state->request.data.sid));
 145                 return WINBINDD_ERROR;
 146         }
 147
 148         status = domain->methods->query_user(domain, state->mem_ctx,
 149                                              &sid, &user_info);
 150         if (!NT_STATUS_IS_OK(status)) {
 151                 DEBUG(1, ("error getting user info for sid %s\n",
 152                           sid_string_static(&sid)));
 153                 return WINBINDD_ERROR;
 154         }
 155
 156         fstrcpy(state->response.data.user_info.acct_name, user_info.acct_name);
 157         fstrcpy(state->response.data.user_info.full_name, user_info.full_name);
 158         fstrcpy(state->response.data.user_info.homedir, user_info.homedir);
 159         fstrcpy(state->response.data.user_info.shell, user_info.shell);
 160         state->response.data.user_info.primary_gid = user_info.primary_gid;
 161         if (!sid_peek_check_rid(&domain->sid, &user_info.group_sid,
 162                                 &state->response.data.user_info.group_rid)) {
 163                 DEBUG(1, ("Could not extract group rid out of %s\n",
 164                           sid_string_static(&sid)));
 165                 return WINBINDD_ERROR;
 166         }
 167
 168         return WINBINDD_OK;
 169 }
 170
 171 struct getpwsid_state {
 172         struct winbindd_cli_state *state;
 173         struct winbindd_domain *domain;
 174         char *username;
 175         char *fullname;
 176         char *homedir;
 177         char *shell;
 178         DOM_SID user_sid;
 179         uid_t uid;
 180         DOM_SID group_sid;
 181         gid_t gid;
 182 };
 183
 184 static void getpwsid_queryuser_recv(void *private_data, BOOL success,
 185                                     const char *acct_name,
 186                                     const char *full_name,
 187                                     const char *homedir,
 188                                     const char *shell,
 189                                     uint32 gid,
 190                                     uint32 group_rid);
 191 static void getpwsid_sid2uid_recv(void *private_data, BOOL success, uid_t uid);
 192 static void getpwsid_sid2gid_recv(void *private_data, BOOL success, gid_t gid);
 193
 194 static void winbindd_getpwsid(struct winbindd_cli_state *state,
 195                               const DOM_SID *sid)
 196 {
 197         struct getpwsid_state *s;
 198
 199         s = TALLOC_ZERO_P(state->mem_ctx, struct getpwsid_state);
 200         if (s == NULL) {
 201                 DEBUG(0, ("talloc failed\n"));
 202                 goto error;
 203         }
 204
 205         s->state = state;
 206         s->domain = find_domain_from_sid_noinit(sid);
 207         if (s->domain == NULL) {
 208                 DEBUG(3, ("Could not find domain for sid %s\n",
 209                           sid_string_static(sid)));
 210                 goto error;
 211         }
 212
 213         sid_copy(&s->user_sid, sid);
 214
 215         query_user_async(s->state->mem_ctx, s->domain, sid,
 216                          getpwsid_queryuser_recv, s);
 217         return;
 218
 219  error:
 220         request_error(state);
 221 }
 222
 223 static void getpwsid_queryuser_recv(void *private_data, BOOL success,
 224                                     const char *acct_name,
 225                                     const char *full_name,
 226                                     const char *homedir,
 227                                     const char *shell,
 228                                     uint32 gid,
 229                                     uint32 group_rid)
 230 {
 231         fstring username;
 232         struct getpwsid_state *s =
 233                 talloc_get_type_abort(private_data, struct getpwsid_state);
 234
 235         if (!success) {
 236                 DEBUG(5, ("Could not query domain %s SID %s\n", s->domain->name,
 237                           sid_string_static(&s->user_sid)));
 238                 request_error(s->state);
 239                 return;
 240         }
 241
 242         fstrcpy( username, acct_name );
 243         strlower_m( username );
 244         s->username = talloc_strdup(s->state->mem_ctx, username);
 245
 246         ws_name_replace( s->username, WB_REPLACE_CHAR );
 247
 248         s->fullname = talloc_strdup(s->state->mem_ctx, full_name);
 249         s->homedir = talloc_strdup(s->state->mem_ctx, homedir);
 250         s->shell = talloc_strdup(s->state->mem_ctx, shell);
 251         s->gid = gid;
 252         sid_copy(&s->group_sid, &s->domain->sid);
 253         sid_append_rid(&s->group_sid, group_rid);
 254
 255         winbindd_sid2uid_async(s->state->mem_ctx, &s->user_sid,
 256                                getpwsid_sid2uid_recv, s);
 257 }
 258
 259 static void getpwsid_sid2uid_recv(void *private_data, BOOL success, uid_t uid)
 260 {
 261         struct getpwsid_state *s =
 262                 talloc_get_type_abort(private_data, struct getpwsid_state);
 263
 264         if (!success) {
 265                 DEBUG(5, ("Could not query uid for user %s\\%s\n",
 266                           s->domain->name, s->username));
 267                 request_error(s->state);
 268                 return;
 269         }
 270
 271         s->uid = uid;
 272         winbindd_sid2gid_async(s->state->mem_ctx, &s->group_sid,
 273                                getpwsid_sid2gid_recv, s);
 274 }
 275
 276 static void getpwsid_sid2gid_recv(void *private_data, BOOL success, gid_t gid)
 277 {
 278         struct getpwsid_state *s =
 279                 talloc_get_type_abort(private_data, struct getpwsid_state);
 280         struct winbindd_pw *pw;
 281         fstring output_username;
 282
 283         /* allow the nss backend to override the primary group ID.
 284            If the gid has already been set, then keep it.
 285            This makes me feel dirty.  If the nss backend already
 286            gave us a gid, we don't really care whether the sid2gid()
 287            call worked or not.   --jerry  */
 288
 289         if ( s->gid == (gid_t)-1 ) {
 290
 291                 if (!success) {
 292                         DEBUG(5, ("Could not query gid for user %s\\%s\n",
 293                                   s->domain->name, s->username));
 294                         goto failed;
 295                 }
 296
 297                 /* take what the sid2gid() call gave us */
 298                 s->gid = gid;
 299         }
 300
 301         pw = &s->state->response.data.pw;
 302         pw->pw_uid = s->uid;
 303         pw->pw_gid = s->gid;
 304         fill_domain_username(output_username, s->domain->name, s->username, True);
 305         safe_strcpy(pw->pw_name, output_username, sizeof(pw->pw_name) - 1);
 306         safe_strcpy(pw->pw_gecos, s->fullname, sizeof(pw->pw_gecos) - 1);
 307
 308         if (!fillup_pw_field(lp_template_homedir(), s->username, s->domain->name,
 309                              pw->pw_uid, pw->pw_gid, s->homedir, pw->pw_dir)) {
 310                 DEBUG(5, ("Could not compose homedir\n"));
 311                 goto failed;
 312         }
 313
 314         if (!fillup_pw_field(lp_template_shell(), s->username, s->domain->name,
 315                              pw->pw_uid, pw->pw_gid, s->shell, pw->pw_shell)) {
 316                 DEBUG(5, ("Could not compose shell\n"));
 317                 goto failed;
 318         }
 319
 320         /* Password - set to "*" as we can't generate anything useful here.
 321            Authentication can be done using the pam_winbind module. */
 322
 323         safe_strcpy(pw->pw_passwd, "*", sizeof(pw->pw_passwd) - 1);
 324
 325         request_ok(s->state);
 326         return;
 327
 328  failed:
 329         request_error(s->state);
 330 }
 331
 332 /* Return a password structure from a username.  */
 333
 334 static void getpwnam_name2sid_recv(void *private_data, BOOL success,
 335                                    const DOM_SID *sid, enum lsa_SidType type);
 336
 337 void winbindd_getpwnam(struct winbindd_cli_state *state)
 338 {
 339         struct winbindd_domain *domain;
 340         fstring domname, username;
 341
 342         /* Ensure null termination */
 343         state->request.data.username[sizeof(state->request.data.username)-1]='\0';
 344
 345         DEBUG(3, ("[%5lu]: getpwnam %s\n", (unsigned long)state->pid,
 346                   state->request.data.username));
 347
 348         ws_name_return( state->request.data.username, WB_REPLACE_CHAR );
 349
 350         if (!parse_domain_user(state->request.data.username, domname,
 351                                username)) {
 352                 DEBUG(5, ("Could not parse domain user: %s\n",
 353                           state->request.data.username));
 354                 request_error(state);
 355                 return;
 356         }
 357
 358         /* Get info for the domain */
 359
 360         domain = find_domain_from_name(domname);
 361
 362         if (domain == NULL) {
 363                 DEBUG(7, ("could not find domain entry for domain %s\n",
 364                           domname));
 365                 request_error(state);
 366                 return;
 367         }
 368
 369         if ( strequal(domname, lp_workgroup()) && lp_winbind_trusted_domains_only() ) {
 370                 DEBUG(7,("winbindd_getpwnam: My domain -- rejecting getpwnam() for %s\\%s.\n",
 371                         domname, username));
 372                 request_error(state);
 373                 return;
 374         }
 375
 376         /* Get rid and name type from name.  The following costs 1 packet */
 377
 378         winbindd_lookupname_async(state->mem_ctx, domname, username,
 379                                   getpwnam_name2sid_recv, state);
 380 }
 381
 382 static void getpwnam_name2sid_recv(void *private_data, BOOL success,
 383                                    const DOM_SID *sid, enum lsa_SidType type)
 384 {
 385         struct winbindd_cli_state *state =
 386                 (struct winbindd_cli_state *)private_data;
 387
 388         if (!success) {
 389                 DEBUG(5, ("Could not lookup name for user %s\n",
 390                           state->request.data.username));
 391                 request_error(state);
 392                 return;
 393         }
 394
 395         if ((type != SID_NAME_USER) && (type != SID_NAME_COMPUTER)) {
 396                 DEBUG(5, ("%s is not a user\n", state->request.data.username));
 397                 request_error(state);
 398                 return;
 399         }
 400
 401         winbindd_getpwsid(state, sid);
 402 }
 403
 404 static void getpwuid_recv(void *private_data, BOOL success, const char *sid)
 405 {
 406         struct winbindd_cli_state *state =
 407                 (struct winbindd_cli_state *)private_data;
 408         DOM_SID user_sid;
 409
 410         if (!success) {
 411                 DEBUG(10,("uid2sid_recv: uid [%lu] to sid mapping failed\n.",
 412                           (unsigned long)(state->request.data.uid)));
 413                 request_error(state);
 414                 return;
 415         }
 416
 417         DEBUG(10,("uid2sid_recv: uid %lu has sid %s\n",
 418                   (unsigned long)(state->request.data.uid), sid));
 419
 420         string_to_sid(&user_sid, sid);
 421         winbindd_getpwsid(state, &user_sid);
 422 }
 423
 424 /* Return a password structure given a uid number */
 425 void winbindd_getpwuid(struct winbindd_cli_state *state)
 426 {
 427         DEBUG(3, ("[%5lu]: getpwuid %lu\n", (unsigned long)state->pid,
 428                   (unsigned long)state->request.data.uid));
 429
 430         /* always query idmap via the async interface */
 431         /* if this turns to be too slow we will add here a direct query to the cache */
 432         winbindd_uid2sid_async(state->mem_ctx, state->request.data.uid, getpwuid_recv, state);
 433 }
 434
 435 /*
 436  * set/get/endpwent functions
 437  */
 438
 439 /* Rewind file pointer for ntdom passwd database */
 440
 441 static BOOL winbindd_setpwent_internal(struct winbindd_cli_state *state)
 442 {
 443         struct winbindd_domain *domain;
 444
 445         DEBUG(3, ("[%5lu]: setpwent\n", (unsigned long)state->pid));
 446
 447         /* Check user has enabled this */
 448
 449         if (!lp_winbind_enum_users()) {
 450                 return False;
 451         }
 452
 453         /* Free old static data if it exists */
 454
 455         if (state->getpwent_state != NULL) {
 456                 free_getent_state(state->getpwent_state);
 457                 state->getpwent_state = NULL;
 458         }
 459
 460 #if 0   /* JERRY */
 461         /* add any local users we have */
 462
 463         if ( (domain_state = (struct getent_state *)malloc(sizeof(struct getent_state))) == NULL )
 464                 return False;
 465
 466         ZERO_STRUCTP(domain_state);
 467
 468         /* Add to list of open domains */
 469
 470         DLIST_ADD(state->getpwent_state, domain_state);
 471 #endif
 472
 473         /* Create sam pipes for each domain we know about */
 474
 475         for(domain = domain_list(); domain != NULL; domain = domain->next) {
 476                 struct getent_state *domain_state;
 477
 478
 479                 /* don't add our domaina if we are a PDC or if we
 480                    are a member of a Samba domain */
 481
 482                 if ( (IS_DC || lp_winbind_trusted_domains_only())
 483                         && strequal(domain->name, lp_workgroup()) )
 484                 {
 485                         continue;
 486                 }
 487
 488                 /* Create a state record for this domain */
 489
 490                 if ((domain_state = SMB_MALLOC_P(struct getent_state)) == NULL) {
 491                         DEBUG(0, ("malloc failed\n"));
 492                         return False;
 493                 }
 494
 495                 ZERO_STRUCTP(domain_state);
 496
 497                 fstrcpy(domain_state->domain_name, domain->name);
 498
 499                 /* Add to list of open domains */
 500
 501                 DLIST_ADD(state->getpwent_state, domain_state);
 502         }
 503
 504         state->getpwent_initialized = True;
 505         return True;
 506 }
 507
 508 void winbindd_setpwent(struct winbindd_cli_state *state)
 509 {
 510         if (winbindd_setpwent_internal(state)) {
 511                 request_ok(state);
 512         } else {
 513                 request_error(state);
 514         }
 515 }
 516
 517 /* Close file pointer to ntdom passwd database */
 518
 519 void winbindd_endpwent(struct winbindd_cli_state *state)
 520 {
 521         DEBUG(3, ("[%5lu]: endpwent\n", (unsigned long)state->pid));
 522
 523         free_getent_state(state->getpwent_state);
 524         state->getpwent_initialized = False;
 525         state->getpwent_state = NULL;
 526         request_ok(state);
 527 }
 528
 529 /* Get partial list of domain users for a domain.  We fill in the sam_entries,
 530    and num_sam_entries fields with domain user information.  The dispinfo_ndx
 531    field is incremented to the index of the next user to fetch.  Return True if
 532    some users were returned, False otherwise. */
 533
 534 static BOOL get_sam_user_entries(struct getent_state *ent, TALLOC_CTX *mem_ctx)
 535 {
 536         NTSTATUS status;
 537         uint32 num_entries;
 538         WINBIND_USERINFO *info;
 539         struct getpwent_user *name_list = NULL;
 540         struct winbindd_domain *domain;
 541         struct winbindd_methods *methods;
 542         unsigned int i;
 543
 544         if (ent->num_sam_entries)
 545                 return False;
 546
 547         if (!(domain = find_domain_from_name(ent->domain_name))) {
 548                 DEBUG(3, ("no such domain %s in get_sam_user_entries\n",
 549                           ent->domain_name));
 550                 return False;
 551         }
 552
 553         methods = domain->methods;
 554
 555         /* Free any existing user info */
 556
 557         SAFE_FREE(ent->sam_entries);
 558         ent->num_sam_entries = 0;
 559
 560         /* Call query_user_list to get a list of usernames and user rids */
 561
 562         num_entries = 0;
 563
 564         status = methods->query_user_list(domain, mem_ctx, &num_entries,
 565                                           &info);
 566
 567         if (!NT_STATUS_IS_OK(status)) {
 568                 DEBUG(10,("get_sam_user_entries: query_user_list failed with %s\n",
 569                         nt_errstr(status) ));
 570                 return False;
 571         }
 572
 573         if (num_entries) {
 574                 name_list = SMB_REALLOC_ARRAY(name_list, struct getpwent_user, ent->num_sam_entries + num_entries);
 575
 576                 if (!name_list) {
 577                         DEBUG(0,("get_sam_user_entries realloc failed.\n"));
 578                         return False;
 579                 }
 580         }
 581
 582         for (i = 0; i < num_entries; i++) {
 583                 /* Store account name and gecos */
 584                 if (!info[i].acct_name) {
 585                         fstrcpy(name_list[ent->num_sam_entries + i].name, "");
 586                 } else {
 587                         fstrcpy(name_list[ent->num_sam_entries + i].name,
 588                                 info[i].acct_name);
 589                 }
 590                 if (!info[i].full_name) {
 591                         fstrcpy(name_list[ent->num_sam_entries + i].gecos, "");
 592                 } else {
 593                         fstrcpy(name_list[ent->num_sam_entries + i].gecos,
 594                                 info[i].full_name);
 595                 }
 596                 if (!info[i].homedir) {
 597                         fstrcpy(name_list[ent->num_sam_entries + i].homedir, "");
 598                 } else {
 599                         fstrcpy(name_list[ent->num_sam_entries + i].homedir,
 600                                 info[i].homedir);
 601                 }
 602                 if (!info[i].shell) {
 603                         fstrcpy(name_list[ent->num_sam_entries + i].shell, "");
 604                 } else {
 605                         fstrcpy(name_list[ent->num_sam_entries + i].shell,
 606                                 info[i].shell);
 607                 }
 608
 609
 610                 /* User and group ids */
 611                 sid_copy(&name_list[ent->num_sam_entries+i].user_sid,
 612                          &info[i].user_sid);
 613                 sid_copy(&name_list[ent->num_sam_entries+i].group_sid,
 614                          &info[i].group_sid);
 615         }
 616
 617         ent->num_sam_entries += num_entries;
 618
 619         /* Fill in remaining fields */
 620
 621         ent->sam_entries = name_list;
 622         ent->sam_entry_index = 0;
 623         return ent->num_sam_entries > 0;
 624 }
 625
 626 /* Fetch next passwd entry from ntdom database */
 627
 628 #define MAX_GETPWENT_USERS 500
 629
 630 void winbindd_getpwent(struct winbindd_cli_state *state)
 631 {
 632         struct getent_state *ent;
 633         struct winbindd_pw *user_list;
 634         int num_users, user_list_ndx = 0, i;
 635
 636         DEBUG(3, ("[%5lu]: getpwent\n", (unsigned long)state->pid));
 637
 638         /* Check user has enabled this */
 639
 640         if (!lp_winbind_enum_users()) {
 641                 request_error(state);
 642                 return;
 643         }
 644
 645         /* Allocate space for returning a chunk of users */
 646
 647         num_users = MIN(MAX_GETPWENT_USERS, state->request.data.num_entries);
 648
 649         if ((state->response.extra_data.data = SMB_MALLOC_ARRAY(struct winbindd_pw, num_users)) == NULL) {
 650                 request_error(state);
 651                 return;
 652         }
 653
 654         memset(state->response.extra_data.data, 0, num_users *
 655                sizeof(struct winbindd_pw));
 656
 657         user_list = (struct winbindd_pw *)state->response.extra_data.data;
 658
 659         if (!state->getpwent_initialized)
 660                 winbindd_setpwent_internal(state);
 661
 662         if (!(ent = state->getpwent_state)) {
 663                 request_error(state);
 664                 return;
 665         }
 666
 667         /* Start sending back users */
 668
 669         for (i = 0; i < num_users; i++) {
 670                 struct getpwent_user *name_list = NULL;
 671                 uint32 result;
 672
 673                 /* Do we need to fetch another chunk of users? */
 674
 675                 if (ent->num_sam_entries == ent->sam_entry_index) {
 676
 677                         while(ent &&
 678                               !get_sam_user_entries(ent, state->mem_ctx)) {
 679                                 struct getent_state *next_ent;
 680
 681                                 /* Free state information for this domain */
 682
 683                                 SAFE_FREE(ent->sam_entries);
 684
 685                                 next_ent = ent->next;
 686                                 DLIST_REMOVE(state->getpwent_state, ent);
 687
 688                                 SAFE_FREE(ent);
 689                                 ent = next_ent;
 690                         }
 691
 692                         /* No more domains */
 693
 694                         if (!ent)
 695                                 break;
 696                 }
 697
 698                 name_list = (struct getpwent_user *)ent->sam_entries;
 699
 700                 /* Lookup user info */
 701
 702                 result = winbindd_fill_pwent(
 703                         ent->domain_name,
 704                         name_list[ent->sam_entry_index].name,
 705                         &name_list[ent->sam_entry_index].user_sid,
 706                         &name_list[ent->sam_entry_index].group_sid,
 707                         name_list[ent->sam_entry_index].gecos,
 708                         name_list[ent->sam_entry_index].homedir,
 709                         name_list[ent->sam_entry_index].shell,
 710                         &user_list[user_list_ndx]);
 711
 712                 ent->sam_entry_index++;
 713
 714                 /* Add user to return list */
 715
 716                 if (result) {
 717
 718                         user_list_ndx++;
 719                         state->response.data.num_entries++;
 720                         state->response.length +=
 721                                 sizeof(struct winbindd_pw);
 722
 723                 } else
 724                         DEBUG(1, ("could not lookup domain user %s\n",
 725                                   name_list[ent->sam_entry_index].name));
 726         }
 727
 728         /* Out of domains */
 729
 730         if (user_list_ndx > 0)
 731                 request_ok(state);
 732         else
 733                 request_error(state);
 734 }
 735
 736 /* List domain users without mapping to unix ids */
 737
 738 void winbindd_list_users(struct winbindd_cli_state *state)
 739 {
 740         struct winbindd_domain *domain;
 741         WINBIND_USERINFO *info;
 742         const char *which_domain;
 743         uint32 num_entries = 0, total_entries = 0;
 744         char *extra_data = NULL;
 745         int extra_data_len = 0;
 746         enum winbindd_result rv = WINBINDD_ERROR;
 747
 748         DEBUG(3, ("[%5lu]: list users\n", (unsigned long)state->pid));
 749
 750         /* Ensure null termination */
 751         state->request.domain_name[sizeof(state->request.domain_name)-1]='\0';
 752         which_domain = state->request.domain_name;
 753
 754         /* Enumerate over trusted domains */
 755
 756         for (domain = domain_list(); domain; domain = domain->next) {
 757                 NTSTATUS status;
 758                 struct winbindd_methods *methods;
 759                 unsigned int i;
 760
 761                 /* if we have a domain name restricting the request and this
 762                    one in the list doesn't match, then just bypass the remainder
 763                    of the loop */
 764
 765                 if ( *which_domain && !strequal(which_domain, domain->name) )
 766                         continue;
 767
 768                 methods = domain->methods;
 769
 770                 /* Query display info */
 771                 status = methods->query_user_list(domain, state->mem_ctx,
 772                                                   &num_entries, &info);
 773
 774                 if (!NT_STATUS_IS_OK(status)) {
 775                         continue;
 776                 }
 777
 778                 if (num_entries == 0)
 779                         continue;
 780
 781                 /* Allocate some memory for extra data */
 782                 total_entries += num_entries;
 783
 784                 extra_data = (char *)SMB_REALLOC(
 785                         extra_data, sizeof(fstring) * total_entries);
 786
 787                 if (!extra_data) {
 788                         DEBUG(0,("failed to enlarge buffer!\n"));
 789                         goto done;
 790                 }
 791
 792                 /* Pack user list into extra data fields */
 793
 794                 for (i = 0; i < num_entries; i++) {
 795                         fstring acct_name, name;
 796
 797                         if (!info[i].acct_name) {
 798                                 fstrcpy(acct_name, "");
 799                         } else {
 800                                 fstrcpy(acct_name, info[i].acct_name);
 801                         }
 802
 803                         fill_domain_username(name, domain->name, acct_name, True);
 804
 805                                 /* Append to extra data */
 806                         memcpy(&extra_data[extra_data_len], name,
 807                                strlen(name));
 808                         extra_data_len += strlen(name);
 809                         extra_data[extra_data_len++] = ',';
 810                 }
 811         }
 812
 813         /* Assign extra_data fields in response structure */
 814
 815         if (extra_data) {
 816                 extra_data[extra_data_len - 1] = '\0';
 817                 state->response.extra_data.data = extra_data;
 818                 state->response.length += extra_data_len;
 819         }
 820
 821         /* No domains responded but that's still OK so don't return an
 822            error. */
 823
 824         rv = WINBINDD_OK;
 825
 826  done:
 827
 828         if (rv == WINBINDD_OK)
 829                 request_ok(state);
 830         else
 831                 request_error(state);
 832 }