source/smbd/uid.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    uid/user handling
   4    Copyright (C) Andrew Tridgell 1992-1998
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "includes.h"
  22
  23 /* what user is current? */
  24 extern struct current_user current_user;
  25
  26 /****************************************************************************
  27  Become the guest user without changing the security context stack.
  28 ****************************************************************************/
  29
  30 BOOL change_to_guest(void)
  31 {
  32         static struct passwd *pass=NULL;
  33
  34         if (!pass) {
  35                 /* Don't need to free() this as its stored in a static */
  36                 pass = getpwnam_alloc(lp_guestaccount());
  37                 if (!pass)
  38                         return(False);
  39         }
  40
  41 #ifdef AIX
  42         /* MWW: From AIX FAQ patch to WU-ftpd: call initgroups before
  43            setting IDs */
  44         initgroups(pass->pw_name, pass->pw_gid);
  45 #endif
  46
  47         set_sec_ctx(pass->pw_uid, pass->pw_gid, 0, NULL, NULL);
  48
  49         current_user.conn = NULL;
  50         current_user.vuid = UID_FIELD_INVALID;
  51
  52         return True;
  53 }
  54
  55 /*******************************************************************
  56  Check if a username is OK.
  57 ********************************************************************/
  58
  59 static BOOL check_user_ok(connection_struct *conn, user_struct *vuser,int snum)
  60 {
  61         int i;
  62         for (i=0;i<conn->uid_cache.entries;i++)
  63                 if (conn->uid_cache.list[i] == vuser->uid)
  64                         return(True);
  65
  66         if (!user_ok(vuser->user.unix_name,snum))
  67                 return(False);
  68
  69         i = conn->uid_cache.entries % UID_CACHE_SIZE;
  70         conn->uid_cache.list[i] = vuser->uid;
  71
  72         if (conn->uid_cache.entries < UID_CACHE_SIZE)
  73                 conn->uid_cache.entries++;
  74
  75         return(True);
  76 }
  77
  78 /****************************************************************************
  79  Become the user of a connection number without changing the security context
  80  stack, but modify the currnet_user entries.
  81 ****************************************************************************/
  82
  83 BOOL change_to_user(connection_struct *conn, uint16 vuid)
  84 {
  85         user_struct *vuser = get_valid_user_struct(vuid);
  86         int snum;
  87         gid_t gid;
  88         uid_t uid;
  89         char group_c;
  90         BOOL must_free_token = False;
  91         NT_USER_TOKEN *token = NULL;
  92
  93         if (!conn) {
  94                 DEBUG(2,("change_to_user: Connection not open\n"));
  95                 return(False);
  96         }
  97
  98         /*
  99          * We need a separate check in security=share mode due to vuid
 100          * always being UID_FIELD_INVALID. If we don't do this then
 101          * in share mode security we are *always* changing uid's between
 102          * SMB's - this hurts performance - Badly.
 103          */
 104
 105         if((lp_security() == SEC_SHARE) && (current_user.conn == conn) &&
 106            (current_user.uid == conn->uid)) {
 107                 DEBUG(4,("change_to_user: Skipping user change - already user\n"));
 108                 return(True);
 109         } else if ((current_user.conn == conn) &&
 110                    (vuser != 0) && (current_user.vuid == vuid) &&
 111                    (current_user.uid == vuser->uid)) {
 112                 DEBUG(4,("change_to_user: Skipping user change - already user\n"));
 113                 return(True);
 114         }
 115
 116         snum = SNUM(conn);
 117
 118         if((vuser != NULL) && !check_user_ok(conn, vuser, snum))
 119                 return False;
 120
 121         if (conn->force_user ||
 122                 conn->admin_user ||
 123             (lp_security() == SEC_SHARE)) {
 124                 uid = conn->uid;
 125                 gid = conn->gid;
 126                 current_user.groups = conn->groups;
 127                 current_user.ngroups = conn->ngroups;
 128                 token = conn->nt_user_token;
 129         } else {
 130                 if (!vuser) {
 131                         DEBUG(2,("change_to_user: Invalid vuid used %d\n",vuid));
 132                         return(False);
 133                 }
 134                 uid = vuser->uid;
 135                 gid = vuser->gid;
 136                 current_user.ngroups = vuser->n_groups;
 137                 current_user.groups  = vuser->groups;
 138                 token = vuser->nt_user_token;
 139         }
 140
 141         /*
 142          * See if we should force group for this service.
 143          * If so this overrides any group set in the force
 144          * user code.
 145          */
 146
 147         if((group_c = *lp_force_group(snum))) {
 148                 BOOL is_guest = False;
 149
 150                 if(group_c == '+') {
 151
 152                         /*
 153                          * Only force group if the user is a member of
 154                          * the service group. Check the group memberships for
 155                          * this user (we already have this) to
 156                          * see if we should force the group.
 157                          */
 158
 159                         int i;
 160                         for (i = 0; i < current_user.ngroups; i++) {
 161                                 if (current_user.groups[i] == conn->gid) {
 162                                         gid = conn->gid;
 163                                         break;
 164                                 }
 165                         }
 166                 } else {
 167                         gid = conn->gid;
 168                 }
 169
 170                 /*
 171                  * We've changed the group list in the token - we must
 172                  * re-create it.
 173                  */
 174
 175                 if (vuser && vuser->guest)
 176                         is_guest = True;
 177
 178                 token = create_nt_token(uid, gid, current_user.ngroups, current_user.groups, is_guest, NULL);
 179                 must_free_token = True;
 180         }
 181
 182         set_sec_ctx(uid, gid, current_user.ngroups, current_user.groups, token);
 183
 184         /*
 185          * Free the new token (as set_sec_ctx copies it).
 186          */
 187
 188         if (must_free_token)
 189                 delete_nt_token(&token);
 190
 191         current_user.conn = conn;
 192         current_user.vuid = vuid;
 193
 194         DEBUG(5,("change_to_user uid=(%d,%d) gid=(%d,%d)\n",
 195                  (int)getuid(),(int)geteuid(),(int)getgid(),(int)getegid()));
 196
 197         return(True);
 198 }
 199
 200 /****************************************************************************
 201  Go back to being root without changing the security context stack,
 202  but modify the current_user entries.
 203 ****************************************************************************/
 204
 205 BOOL change_to_root_user(void)
 206 {
 207         set_root_sec_ctx();
 208
 209         DEBUG(5,("change_to_root_user: now uid=(%d,%d) gid=(%d,%d)\n",
 210                 (int)getuid(),(int)geteuid(),(int)getgid(),(int)getegid()));
 211
 212         current_user.conn = NULL;
 213         current_user.vuid = UID_FIELD_INVALID;
 214
 215         return(True);
 216 }
 217
 218 /****************************************************************************
 219  Become the user of an authenticated connected named pipe.
 220  When this is called we are currently running as the connection
 221  user. Doesn't modify current_user.
 222 ****************************************************************************/
 223
 224 BOOL become_authenticated_pipe_user(pipes_struct *p)
 225 {
 226         if (!push_sec_ctx())
 227                 return False;
 228
 229         set_sec_ctx(p->pipe_user.uid, p->pipe_user.gid,
 230                     p->pipe_user.ngroups, p->pipe_user.groups, p->pipe_user.nt_user_token);
 231
 232         return True;
 233 }
 234
 235 /****************************************************************************
 236  Unbecome the user of an authenticated connected named pipe.
 237  When this is called we are running as the authenticated pipe
 238  user and need to go back to being the connection user. Doesn't modify
 239  current_user.
 240 ****************************************************************************/
 241
 242 BOOL unbecome_authenticated_pipe_user(void)
 243 {
 244         return pop_sec_ctx();
 245 }
 246
 247 /****************************************************************************
 248  Utility functions used by become_xxx/unbecome_xxx.
 249 ****************************************************************************/
 250
 251 struct conn_ctx {
 252         connection_struct *conn;
 253         uint16 vuid;
 254 };
 255
 256 /* A stack of current_user connection contexts. */
 257
 258 static struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
 259 static int conn_ctx_stack_ndx;
 260
 261 static void push_conn_ctx(void)
 262 {
 263         struct conn_ctx *ctx_p;
 264
 265         /* Check we don't overflow our stack */
 266
 267         if (conn_ctx_stack_ndx == MAX_SEC_CTX_DEPTH) {
 268                 DEBUG(0, ("Connection context stack overflow!\n"));
 269                 smb_panic("Connection context stack overflow!\n");
 270         }
 271
 272         /* Store previous user context */
 273         ctx_p = &conn_ctx_stack[conn_ctx_stack_ndx];
 274
 275         ctx_p->conn = current_user.conn;
 276         ctx_p->vuid = current_user.vuid;
 277
 278         DEBUG(3, ("push_conn_ctx(%u) : conn_ctx_stack_ndx = %d\n",
 279                 (unsigned int)ctx_p->vuid, conn_ctx_stack_ndx ));
 280
 281         conn_ctx_stack_ndx++;
 282 }
 283
 284 static void pop_conn_ctx(void)
 285 {
 286         struct conn_ctx *ctx_p;
 287
 288         /* Check for stack underflow. */
 289
 290         if (conn_ctx_stack_ndx == 0) {
 291                 DEBUG(0, ("Connection context stack underflow!\n"));
 292                 smb_panic("Connection context stack underflow!\n");
 293         }
 294
 295         conn_ctx_stack_ndx--;
 296         ctx_p = &conn_ctx_stack[conn_ctx_stack_ndx];
 297
 298         current_user.conn = ctx_p->conn;
 299         current_user.vuid = ctx_p->vuid;
 300
 301         ctx_p->conn = NULL;
 302         ctx_p->vuid = UID_FIELD_INVALID;
 303 }
 304
 305 void init_conn_ctx(void)
 306 {
 307     int i;
 308
 309     /* Initialise connection context stack */
 310         for (i = 0; i < MAX_SEC_CTX_DEPTH; i++) {
 311                 conn_ctx_stack[i].conn = NULL;
 312                 conn_ctx_stack[i].vuid = UID_FIELD_INVALID;
 313     }
 314 }
 315
 316 /****************************************************************************
 317  Temporarily become a root user.  Must match with unbecome_root(). Saves and
 318  restores the connection context.
 319 ****************************************************************************/
 320
 321 void become_root(void)
 322 {
 323         push_sec_ctx();
 324         push_conn_ctx();
 325         set_root_sec_ctx();
 326 }
 327
 328 /* Unbecome the root user */
 329
 330 void unbecome_root(void)
 331 {
 332         pop_sec_ctx();
 333         pop_conn_ctx();
 334 }
 335
 336 /****************************************************************************
 337  Push the current security context then force a change via change_to_user().
 338  Saves and restores the connection context.
 339 ****************************************************************************/
 340
 341 BOOL become_user(connection_struct *conn, uint16 vuid)
 342 {
 343         if (!push_sec_ctx())
 344                 return False;
 345
 346         push_conn_ctx();
 347
 348         if (!change_to_user(conn, vuid)) {
 349                 pop_sec_ctx();
 350                 pop_conn_ctx();
 351                 return False;
 352         }
 353
 354         return True;
 355 }
 356
 357 BOOL unbecome_user(void)
 358 {
 359         pop_sec_ctx();
 360         pop_conn_ctx();
 361         return True;
 362 }
 363
 364 /*****************************************************************
 365  Convert the suplimentary SIDs returned in a netlogon into UNIX
 366  group gid_t's. Add to the total group array.
 367 *****************************************************************/
 368
 369 void add_supplementary_nt_login_groups(int *n_groups, gid_t **pp_groups, NT_USER_TOKEN **pptok)
 370 {
 371         int total_groups;
 372         int current_n_groups = *n_groups;
 373         gid_t *final_groups = NULL;
 374         size_t i;
 375         NT_USER_TOKEN *ptok = *pptok;
 376         NT_USER_TOKEN *new_tok = NULL;
 377
 378         if (!ptok || (ptok->num_sids == 0))
 379                 return;
 380
 381         new_tok = dup_nt_token(ptok);
 382         if (!new_tok) {
 383                 DEBUG(0,("add_supplementary_nt_login_groups: Failed to malloc new token\n"));
 384                 return;
 385         }
 386         /* Leave the allocated space but empty the number of SIDs. */
 387         new_tok->num_sids = 0;
 388
 389         total_groups = current_n_groups + ptok->num_sids;
 390
 391         final_groups = (gid_t *)malloc(total_groups * sizeof(gid_t));
 392         if (!final_groups) {
 393                 DEBUG(0,("add_supplementary_nt_login_groups: Failed to malloc new groups.\n"));
 394                 delete_nt_token(&new_tok);
 395                 return;
 396         }
 397
 398         memcpy(final_groups, *pp_groups, current_n_groups * sizeof(gid_t));
 399         for (i = 0; i < ptok->num_sids; i++) {
 400                 enum SID_NAME_USE sid_type;
 401                 gid_t new_grp;
 402
 403                 if (sid_to_gid(&ptok->user_sids[i], &new_grp, &sid_type)) {
 404                         /*
 405                          * Don't add the gid_t if it is already in the current group
 406                          * list. Some UNIXen don't like the same group more than once.
 407                          */
 408                         int j;
 409
 410                         for (j = 0; j < current_n_groups; j++)
 411                                 if (final_groups[j] == new_grp)
 412                                         break;
 413
 414                         if ( j == current_n_groups) {
 415                                 /* Group not already present. */
 416                                 final_groups[current_n_groups++] = new_grp;
 417                         }
 418                 } else {
 419                         /* SID didn't map. Copy to the new token to be saved. */
 420                         sid_copy(&new_tok->user_sids[new_tok->num_sids++], &ptok->user_sids[i]);
 421                 }
 422         }
 423
 424         SAFE_FREE(*pp_groups);
 425         *pp_groups = final_groups;
 426         *n_groups = current_n_groups;
 427
 428         /* Replace the old token with the truncated one. */
 429         delete_nt_token(&ptok);
 430         *pptok = new_tok;
 431 }
 432
 433 /*****************************************************************
 434  *THE CANONICAL* convert name to SID function.
 435  Tries local lookup first - for local domains - then uses winbind.
 436 *****************************************************************/
 437
 438 BOOL lookup_name(const char *domain, const char *name, DOM_SID *psid, enum SID_NAME_USE *name_type)
 439 {
 440         extern pstring global_myname;
 441         extern fstring global_myworkgroup;
 442         fstring sid;
 443         BOOL local_lookup = False;
 444
 445         *name_type = SID_NAME_UNKNOWN;
 446
 447         /* If we are looking up a domain user, make sure it is
 448            for the local machine only */
 449
 450         if (strequal(global_myname, domain)) {
 451                 local_lookup = True;
 452         } else if (lp_server_role() == ROLE_DOMAIN_PDC ||
 453                    lp_server_role() == ROLE_DOMAIN_PDC) {
 454                 if (strequal(domain, global_myworkgroup)) {
 455                         local_lookup = True;
 456                 }
 457         }
 458
 459         if (local_lookup) {
 460                 if (local_lookup_name(name, psid, name_type)) {
 461                         DEBUG(10,
 462                               ("lookup_name: (local) [%s]\\[%s] -> SID %s (type %s: %u)\n",
 463                                domain, name, sid_to_string(sid,psid),
 464                                sid_type_lookup(*name_type), (unsigned int)*name_type));
 465                         return True;
 466                 }
 467         } else {
 468                 /* Remote */
 469                 if (winbind_lookup_name(domain, name, psid, name_type)) {
 470
 471                         DEBUG(10,("lookup_name (winbindd): [%s]\\[%s] -> SID %s (type %u)\n",
 472                                   domain, name, sid_to_string(sid, psid),
 473                                   (unsigned int)*name_type));
 474                         return True;
 475                 }
 476         }
 477
 478         DEBUG(10, ("lookup_name: %s lookup for [%s]\\[%s] failed\n",
 479                    local_lookup ? "local" : "winbind", domain, name));
 480
 481         return False;
 482 }
 483
 484 /*****************************************************************
 485  *THE CANONICAL* convert SID to name function.
 486  Tries local lookup first - for local sids, then tries winbind.
 487 *****************************************************************/
 488
 489 BOOL lookup_sid(DOM_SID *sid, fstring dom_name, fstring name, enum SID_NAME_USE *name_type)
 490 {
 491         if (!name_type)
 492                 return False;
 493
 494         *name_type = SID_NAME_UNKNOWN;
 495
 496         /* Check if this is our own sid.  This should perhaps be done by
 497            winbind?  For the moment handle it here. */
 498
 499         if (sid->num_auths == 5) {
 500                 DOM_SID tmp_sid;
 501                 uint32 rid;
 502
 503                 sid_copy(&tmp_sid, sid);
 504                 sid_split_rid(&tmp_sid, &rid);
 505
 506                 if (sid_equal(get_global_sam_sid(), &tmp_sid)) {
 507
 508                         return map_domain_sid_to_name(&tmp_sid, dom_name) &&
 509                                 local_lookup_sid(sid, name, name_type);
 510                 }
 511         }
 512
 513         if (!winbind_lookup_sid(sid, dom_name, name, name_type)) {
 514                 fstring sid_str;
 515                 DOM_SID tmp_sid;
 516                 uint32 rid;
 517
 518                 DEBUG(10,("lookup_sid: winbind lookup for SID %s failed - trying local.\n", sid_to_string(sid_str, sid) ));
 519
 520                 sid_copy(&tmp_sid, sid);
 521                 sid_split_rid(&tmp_sid, &rid);
 522                 return map_domain_sid_to_name(&tmp_sid, dom_name) &&
 523                         lookup_known_rid(&tmp_sid, rid, name, name_type);
 524         }
 525         return True;
 526 }
 527
 528 /*****************************************************************
 529  *THE CANONICAL* convert uid_t to SID function.
 530  Tries winbind first - then uses local lookup.
 531  Returns SID pointer.
 532 *****************************************************************/
 533
 534 DOM_SID *uid_to_sid(DOM_SID *psid, uid_t uid)
 535 {
 536         uid_t low, high;
 537         fstring sid;
 538
 539         if (lp_winbind_uid(&low, &high) && uid >= low && uid <= high) {
 540                 if (winbind_uid_to_sid(psid, uid)) {
 541
 542                         DEBUG(10,("uid_to_sid: winbindd %u -> %s\n",
 543                                 (unsigned int)uid, sid_to_string(sid, psid)));
 544
 545                         return psid;
 546                 }
 547         }
 548
 549         /* Make sure we report failure, (when psid == NULL) */
 550         become_root();
 551         psid = local_uid_to_sid(psid, uid);
 552         unbecome_root();
 553
 554         DEBUG(10,("uid_to_sid: local %u -> %s\n", (unsigned int)uid, sid_to_string(sid, psid)));
 555
 556         return psid;
 557 }
 558
 559 /*****************************************************************
 560  *THE CANONICAL* convert gid_t to SID function.
 561  Tries winbind first - then uses local lookup.
 562  Returns SID pointer.
 563 *****************************************************************/
 564
 565 DOM_SID *gid_to_sid(DOM_SID *psid, gid_t gid)
 566 {
 567         gid_t low, high;
 568         fstring sid;
 569
 570         if (lp_winbind_gid(&low, &high) && gid >= low && gid <= high) {
 571                 if (winbind_gid_to_sid(psid, gid)) {
 572
 573                         DEBUG(10,("gid_to_sid: winbindd %u -> %s\n",
 574                                 (unsigned int)gid, sid_to_string(sid, psid)));
 575
 576                         return psid;
 577                 }
 578         }
 579
 580         /* Make sure we report failure, (when psid == NULL) */
 581         psid = local_gid_to_sid(psid, gid);
 582
 583         DEBUG(10,("gid_to_sid: local %u -> %s\n", (unsigned int)gid, sid_to_string(sid, psid)));
 584
 585         return psid;
 586 }
 587
 588 /*****************************************************************
 589  *THE CANONICAL* convert SID to uid function.
 590  Tries winbind first - then uses local lookup.
 591  Returns True if this name is a user sid and the conversion
 592  was done correctly, False if not. sidtype is set by this function.
 593 *****************************************************************/
 594
 595 BOOL sid_to_uid(const DOM_SID *psid, uid_t *puid, enum SID_NAME_USE *sidtype)
 596 {
 597         fstring sid_str;
 598
 599         /* if we know its local then don't try winbindd */
 600         if (sid_compare_domain(get_global_sam_sid(), psid) == 0) {
 601                 BOOL result;
 602                 become_root();
 603                 result = local_sid_to_uid(puid, psid, sidtype);
 604                 unbecome_root();
 605                 return result;
 606         }
 607
 608 /* (tridge) I commented out the slab of code below in order to support foreign SIDs
 609    Do we really need to validate the type of SID we have in this case?
 610 */
 611 #if 0
 612         fstring dom_name, name;
 613         enum SID_NAME_USE name_type;
 614
 615         *sidtype = SID_NAME_UNKNOWN;
 616         /*
 617          * First we must look up the name and decide if this is a user sid.
 618          */
 619
 620         if ( (!winbind_lookup_sid(psid, dom_name, name, &name_type)) || (name_type != SID_NAME_USER) ) {
 621                 BOOL result;
 622                 DEBUG(10,("sid_to_uid: winbind lookup for sid %s failed - trying local.\n",
 623                                 sid_to_string(sid_str, psid) ));
 624
 625                 become_root();
 626                 result = local_sid_to_uid(puid, psid, sidtype);
 627                 unbecome_root();
 628                 return result;
 629         }
 630
 631         /*
 632          * Ensure this is a user sid.
 633          */
 634
 635         if (name_type != SID_NAME_USER) {
 636                 DEBUG(10,("sid_to_uid: winbind lookup succeeded but SID is not a uid (%u)\n",
 637                                 (unsigned int)name_type ));
 638                 return False;
 639         }
 640 #endif
 641         *sidtype = SID_NAME_USER;
 642
 643         /*
 644          * Get the uid for this SID.
 645          */
 646
 647         if (!winbind_sid_to_uid(puid, psid)) {
 648                 BOOL result;
 649                 DEBUG(10,("sid_to_uid: winbind lookup for sid %s failed.\n",
 650                                 sid_to_string(sid_str, psid) ));
 651                 become_root();
 652                 result = local_sid_to_uid(puid, psid, sidtype);
 653                 unbecome_root();
 654                 return result;
 655         }
 656
 657         DEBUG(10,("sid_to_uid: winbindd %s -> %u\n",
 658                 sid_to_string(sid_str, psid),
 659                 (unsigned int)*puid ));
 660
 661         return True;
 662 }
 663
 664 /*****************************************************************
 665  *THE CANONICAL* convert SID to gid function.
 666  Tries winbind first - then uses local lookup.
 667  Returns True if this name is a user sid and the conversion
 668  was done correctly, False if not.
 669 *****************************************************************/
 670
 671 BOOL sid_to_gid(const DOM_SID *psid, gid_t *pgid, enum SID_NAME_USE *sidtype)
 672 {
 673         fstring dom_name, name, sid_str;
 674         enum SID_NAME_USE name_type;
 675
 676         *sidtype = SID_NAME_UNKNOWN;
 677
 678         /*
 679          * First we must look up the name and decide if this is a group sid.
 680          */
 681
 682         /* if we know its local then don't try winbindd */
 683         if (sid_compare_domain(get_global_sam_sid(), psid) == 0) {
 684                 BOOL result;
 685                 become_root();
 686                 result = local_sid_to_gid(pgid, psid, sidtype);
 687                 unbecome_root();
 688                 return result;
 689         }
 690
 691         if (!winbind_lookup_sid(psid, dom_name, name, &name_type)) {
 692                 DEBUG(10,("sid_to_gid: winbind lookup for sid %s failed.\n",
 693                                 sid_to_string(sid_str, psid) ));
 694                 /* this was probably a foreign sid - assume its a group rid
 695                    and continue */
 696                 name_type = SID_NAME_DOM_GRP;
 697         }
 698
 699         /*
 700          * Ensure this is a group sid.
 701          */
 702
 703         if ((name_type != SID_NAME_DOM_GRP) && (name_type != SID_NAME_ALIAS) && (name_type != SID_NAME_WKN_GRP)) {
 704                 DEBUG(10,("sid_to_gid: winbind lookup succeeded but SID is not a known group (%u)\n",
 705                                 (unsigned int)name_type ));
 706
 707                 return False;
 708         }
 709
 710         *sidtype = name_type;
 711
 712         /*
 713          * Get the gid for this SID.
 714          */
 715
 716         if (!winbind_sid_to_gid(pgid, psid)) {
 717                 DEBUG(10,("sid_to_gid: winbind lookup for sid %s failed.\n",
 718                                 sid_to_string(sid_str, psid) ));
 719                 return False;
 720         }
 721
 722         DEBUG(10,("sid_to_gid: winbindd %s -> %u\n",
 723                 sid_to_string(sid_str, psid),
 724                 (unsigned int)*pgid ));
 725
 726         return True;
 727 }
 728