source3/utils/smbcacls.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    ACL get/set utility
   4    Version 3.0
   5
   6    Copyright (C) Andrew Tridgell 2000
   7    Copyright (C) Tim Potter      2000
   8    Copyright (C) Jeremy Allison  2000
   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
  27 static fstring password;
  28 static pstring username;
  29 static pstring owner_username;
  30 static fstring server;
  31 static int got_pass;
  32 static int test_args;
  33 TALLOC_CTX *ctx;
  34
  35 #define CREATE_ACCESS_READ READ_CONTROL_ACCESS
  36 #define CREATE_ACCESS_WRITE (WRITE_DAC_ACCESS | WRITE_OWNER_ACCESS)
  37
  38 /* numeric is set when the user wants numeric SIDs and ACEs rather
  39    than going via LSA calls to resolve them */
  40 static int numeric;
  41
  42 enum acl_mode {SMB_ACL_SET, SMB_ACL_DELETE, SMB_ACL_MODIFY, SMB_ACL_ADD };
  43 enum chown_mode {REQUEST_NONE, REQUEST_CHOWN, REQUEST_CHGRP};
  44 enum exit_values {EXIT_OK, EXIT_FAILED, EXIT_PARSE_ERROR};
  45
  46 struct perm_value {
  47         char *perm;
  48         uint32 mask;
  49 };
  50
  51 /* These values discovered by inspection */
  52
  53 static struct perm_value special_values[] = {
  54         { "R", 0x00120089 },
  55         { "W", 0x00120116 },
  56         { "X", 0x001200a0 },
  57         { "D", 0x00010000 },
  58         { "P", 0x00040000 },
  59         { "O", 0x00080000 },
  60         { NULL, 0 },
  61 };
  62
  63 static struct perm_value standard_values[] = {
  64         { "READ",   0x001200a9 },
  65         { "CHANGE", 0x001301bf },
  66         { "FULL",   0x001f01ff },
  67         { NULL, 0 },
  68 };
  69
  70 struct cli_state lsa_cli;
  71 POLICY_HND pol;
  72 struct ntuser_creds creds;
  73 BOOL got_policy_hnd;
  74
  75 /* Open cli connection and policy handle */
  76
  77 static BOOL cacls_open_policy_hnd(void)
  78 {
  79         creds.pwd.null_pwd = 1;
  80
  81         /* Initialise cli LSA connection */
  82
  83         if (!lsa_cli.initialised &&
  84             !cli_lsa_initialise(&lsa_cli, server, &creds)) {
  85                 return False;
  86         }
  87
  88         /* Open policy handle */
  89
  90         if (!got_policy_hnd) {
  91
  92                 /* Some systems don't support SEC_RIGHTS_MAXIMUM_ALLOWED,
  93                    but NT sends 0x2000000 so we might as well do it too. */
  94
  95                 if (cli_lsa_open_policy(&lsa_cli, lsa_cli.mem_ctx, True,
  96                                         GENERIC_EXECUTE_ACCESS, &pol)
  97                     != NT_STATUS_NOPROBLEMO) {
  98                         return False;
  99                 }
 100
 101                 got_policy_hnd = True;
 102         }
 103
 104         return True;
 105 }
 106
 107 /* convert a SID to a string, either numeric or username/group */
 108 static void SidToString(fstring str, DOM_SID *sid)
 109 {
 110         char **names = NULL;
 111         uint32 *types = NULL;
 112         int num_names;
 113
 114         sid_to_string(str, sid);
 115
 116         if (numeric) return;
 117
 118         /* Ask LSA to convert the sid to a name */
 119
 120         if (!cacls_open_policy_hnd() ||
 121             cli_lsa_lookup_sids(&lsa_cli, lsa_cli.mem_ctx,  &pol, 1, sid, &names, &types,
 122                                 &num_names) != NT_STATUS_NOPROBLEMO ||
 123             !names || !names[0]) {
 124                 return;
 125         }
 126
 127         /* Converted OK */
 128
 129         fstrcpy(str, names[0]);
 130
 131         safe_free(names[0]);
 132         safe_free(names);
 133         safe_free(types);
 134 }
 135
 136 /* convert a string to a SID, either numeric or username/group */
 137 static BOOL StringToSid(DOM_SID *sid, char *str)
 138 {
 139         uint32 *types = NULL;
 140         DOM_SID *sids = NULL;
 141         int num_sids;
 142         BOOL result = True;
 143
 144         if (strncmp(str, "S-", 2) == 0) {
 145                 return string_to_sid(sid, str);
 146         }
 147
 148         if (!cacls_open_policy_hnd() ||
 149             cli_lsa_lookup_names(&lsa_cli, lsa_cli.mem_ctx, &pol, 1, &str, &sids, &types,
 150                                  &num_sids) != NT_STATUS_NOPROBLEMO) {
 151                 result = False;
 152                 goto done;
 153         }
 154
 155         sid_copy(sid, &sids[0]);
 156
 157         safe_free(sids);
 158         safe_free(types);
 159
 160  done:
 161
 162         return result;
 163 }
 164
 165
 166 /* print an ACE on a FILE, using either numeric or ascii representation */
 167 static void print_ace(FILE *f, SEC_ACE *ace)
 168 {
 169         struct perm_value *v;
 170         fstring sidstr;
 171         int do_print = 0;
 172         uint32 got_mask;
 173
 174         SidToString(sidstr, &ace->sid);
 175
 176         fprintf(f, "%s:", sidstr);
 177
 178         if (numeric) {
 179                 fprintf(f, "%d/%d/0x%08x",
 180                         ace->type, ace->flags, ace->info.mask);
 181                 return;
 182         }
 183
 184         /* Ace type */
 185
 186         if (ace->type == SEC_ACE_TYPE_ACCESS_ALLOWED) {
 187                 fprintf(f, "ALLOWED");
 188         } else if (ace->type == SEC_ACE_TYPE_ACCESS_DENIED) {
 189                 fprintf(f, "DENIED");
 190         } else {
 191                 fprintf(f, "%d", ace->type);
 192         }
 193
 194         /* Not sure what flags can be set in a file ACL */
 195
 196         fprintf(f, "/%d/", ace->flags);
 197
 198         /* Standard permissions */
 199
 200         for (v = standard_values; v->perm; v++) {
 201                 if (ace->info.mask == v->mask) {
 202                         fprintf(f, "%s", v->perm);
 203                         return;
 204                 }
 205         }
 206
 207         /* Special permissions.  Print out a hex value if we have
 208            leftover bits in the mask. */
 209
 210         got_mask = ace->info.mask;
 211
 212  again:
 213         for (v = special_values; v->perm; v++) {
 214                 if ((ace->info.mask & v->mask) == v->mask) {
 215                         if (do_print) {
 216                                 fprintf(f, "%s", v->perm);
 217                         }
 218                         got_mask &= ~v->mask;
 219                 }
 220         }
 221
 222         if (!do_print) {
 223                 if (got_mask != 0) {
 224                         fprintf(f, "0x%08x", ace->info.mask);
 225                 } else {
 226                         do_print = 1;
 227                         goto again;
 228                 }
 229         }
 230 }
 231
 232
 233 /* parse an ACE in the same format as print_ace() */
 234 static BOOL parse_ace(SEC_ACE *ace, char *str)
 235 {
 236         char *p;
 237         fstring tok;
 238         unsigned atype, aflags, amask;
 239         DOM_SID sid;
 240         SEC_ACCESS mask;
 241         struct perm_value *v;
 242
 243         ZERO_STRUCTP(ace);
 244         p = strchr(str,':');
 245         if (!p) return False;
 246         *p = '\0';
 247         p++;
 248
 249         /* Try to parse numeric form */
 250
 251         if (sscanf(p, "%i/%i/%i", &atype, &aflags, &amask) == 3 &&
 252             StringToSid(&sid, str)) {
 253                 goto done;
 254         }
 255
 256         /* Try to parse text form */
 257
 258         if (!StringToSid(&sid, str)) {
 259                 return False;
 260         }
 261
 262         if (!next_token(&p, tok, "/", sizeof(fstring))) {
 263                 return False;
 264         }
 265
 266         if (strncmp(tok, "ALLOWED", strlen("ALLOWED")) == 0) {
 267                 atype = SEC_ACE_TYPE_ACCESS_ALLOWED;
 268         } else if (strncmp(tok, "DENIED", strlen("DENIED")) == 0) {
 269                 atype = SEC_ACE_TYPE_ACCESS_DENIED;
 270         } else {
 271                 return False;
 272         }
 273
 274         /* Only numeric form accepted for flags at present */
 275
 276         if (!(next_token(NULL, tok, "/", sizeof(fstring)) &&
 277               sscanf(tok, "%i", &aflags))) {
 278                 return False;
 279         }
 280
 281         if (!next_token(NULL, tok, "/", sizeof(fstring))) {
 282                 return False;
 283         }
 284
 285         if (strncmp(tok, "0x", 2) == 0) {
 286                 if (sscanf(tok, "%i", &amask) != 1) {
 287                         return False;
 288                 }
 289                 goto done;
 290         }
 291
 292         for (v = standard_values; v->perm; v++) {
 293                 if (strcmp(tok, v->perm) == 0) {
 294                         amask = v->mask;
 295                         goto done;
 296                 }
 297         }
 298
 299         p = tok;
 300
 301         while(*p) {
 302                 BOOL found = False;
 303
 304                 for (v = special_values; v->perm; v++) {
 305                         if (v->perm[0] == *p) {
 306                                 amask |= v->mask;
 307                                 found = True;
 308                         }
 309                 }
 310
 311                 if (!found) return False;
 312                 p++;
 313         }
 314
 315         if (*p) {
 316                 return False;
 317         }
 318
 319  done:
 320         mask.mask = amask;
 321         init_sec_ace(ace, &sid, atype, mask, aflags);
 322         return True;
 323 }
 324
 325 /* add an ACE to a list of ACEs in a SEC_ACL */
 326 static BOOL add_ace(SEC_ACL **the_acl, SEC_ACE *ace)
 327 {
 328         SEC_ACL *new;
 329         SEC_ACE *aces;
 330         if (! *the_acl) {
 331                 (*the_acl) = make_sec_acl(ctx, 3, 1, ace);
 332                 return True;
 333         }
 334
 335         aces = calloc(1+(*the_acl)->num_aces,sizeof(SEC_ACE));
 336         memcpy(aces, (*the_acl)->ace, (*the_acl)->num_aces * sizeof(SEC_ACE));
 337         memcpy(aces+(*the_acl)->num_aces, ace, sizeof(SEC_ACE));
 338         new = make_sec_acl(ctx,(*the_acl)->revision,1+(*the_acl)->num_aces, aces);
 339         free(aces);
 340         (*the_acl) = new;
 341         return True;
 342 }
 343
 344 /* parse a ascii version of a security descriptor */
 345 static SEC_DESC *sec_desc_parse(char *str)
 346 {
 347         char *p = str;
 348         fstring tok;
 349         SEC_DESC *ret;
 350         unsigned sd_size;
 351         DOM_SID *grp_sid=NULL, *owner_sid=NULL;
 352         SEC_ACL *dacl=NULL;
 353         int revision=1;
 354
 355         while (next_token(&p, tok, "\t,\r\n", sizeof(tok))) {
 356
 357                 if (strncmp(tok,"REVISION:", 9) == 0) {
 358                         revision = strtol(tok+9, NULL, 16);
 359                         continue;
 360                 }
 361
 362                 if (strncmp(tok,"OWNER:", 6) == 0) {
 363                         owner_sid = (DOM_SID *)calloc(1, sizeof(DOM_SID));
 364                         if (!owner_sid ||
 365                             !StringToSid(owner_sid, tok+6)) {
 366                                 printf("Failed to parse owner sid\n");
 367                                 return NULL;
 368                         }
 369                         continue;
 370                 }
 371
 372                 if (strncmp(tok,"GROUP:", 6) == 0) {
 373                         grp_sid = (DOM_SID *)calloc(1, sizeof(DOM_SID));
 374                         if (!grp_sid ||
 375                             !StringToSid(grp_sid, tok+6)) {
 376                                 printf("Failed to parse group sid\n");
 377                                 return NULL;
 378                         }
 379                         continue;
 380                 }
 381
 382                 if (strncmp(tok,"ACL:", 4) == 0) {
 383                         SEC_ACE ace;
 384                         if (!parse_ace(&ace, tok+4)) {
 385                                 printf("Failed to parse ACL %s\n", tok);
 386                                 return NULL;
 387                         }
 388                         if(!add_ace(&dacl, &ace)) {
 389                                 printf("Failed to add ACL %s\n", tok);
 390                                 return NULL;
 391                         }
 392                         continue;
 393                 }
 394
 395                 printf("Failed to parse security descriptor\n");
 396                 return NULL;
 397         }
 398
 399         ret = make_sec_desc(ctx,revision, owner_sid, grp_sid,
 400                             NULL, dacl, &sd_size);
 401
 402         if (grp_sid) free(grp_sid);
 403         if (owner_sid) free(owner_sid);
 404
 405         return ret;
 406 }
 407
 408
 409 /* print a ascii version of a security descriptor on a FILE handle */
 410 static void sec_desc_print(FILE *f, SEC_DESC *sd)
 411 {
 412         fstring sidstr;
 413         int i;
 414
 415         printf("REVISION:%d\n", sd->revision);
 416
 417         /* Print owner and group sid */
 418
 419         if (sd->owner_sid) {
 420                 SidToString(sidstr, sd->owner_sid);
 421         } else {
 422                 fstrcpy(sidstr, "");
 423         }
 424
 425         printf("OWNER:%s\n", sidstr);
 426
 427         if (sd->grp_sid) {
 428                 SidToString(sidstr, sd->grp_sid);
 429         } else {
 430                 fstrcpy(sidstr, "");
 431         }
 432
 433         fprintf(f, "GROUP:%s\n", sidstr);
 434
 435         /* Print aces */
 436         for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
 437                 SEC_ACE *ace = &sd->dacl->ace[i];
 438                 fprintf(f, "ACL:");
 439                 print_ace(f, ace);
 440                 fprintf(f, "\n");
 441         }
 442
 443 }
 444
 445 /*****************************************************
 446 dump the acls for a file
 447 *******************************************************/
 448 static int cacl_dump(struct cli_state *cli, char *filename)
 449 {
 450         int fnum;
 451         SEC_DESC *sd;
 452
 453         if (test_args) return EXIT_OK;
 454
 455         fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
 456         if (fnum == -1) {
 457                 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
 458                 return EXIT_FAILED;
 459         }
 460
 461         sd = cli_query_secdesc(cli, fnum);
 462
 463         if (!sd) {
 464                 printf("ERROR: secdesc query failed: %s\n", cli_errstr(cli));
 465                 return EXIT_FAILED;
 466         }
 467
 468         sec_desc_print(stdout, sd);
 469
 470         cli_close(cli, fnum);
 471
 472         return EXIT_OK;
 473 }
 474
 475 /*****************************************************
 476 Change the ownership or group ownership of a file. Just
 477 because the NT docs say this can't be done :-). JRA.
 478 *******************************************************/
 479
 480 static int owner_set(struct cli_state *cli, enum chown_mode change_mode,
 481                      char *filename, char *new_username)
 482 {
 483         int fnum;
 484         DOM_SID sid;
 485         SEC_DESC *sd, *old;
 486         size_t sd_size;
 487
 488         fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
 489
 490         if (fnum == -1) {
 491                 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
 492                 return EXIT_FAILED;
 493         }
 494
 495         if (!StringToSid(&sid, new_username))
 496                 return EXIT_PARSE_ERROR;
 497
 498         old = cli_query_secdesc(cli, fnum);
 499
 500         cli_close(cli, fnum);
 501
 502         if (!old) {
 503                 printf("owner_set: Failed to query old descriptor\n");
 504                 return EXIT_FAILED;
 505         }
 506
 507         sd = make_sec_desc(ctx,old->revision,
 508                                 (change_mode == REQUEST_CHOWN) ? &sid : old->owner_sid,
 509                                 (change_mode == REQUEST_CHGRP) ? &sid : old->grp_sid,
 510                            NULL, old->dacl, &sd_size);
 511
 512         fnum = cli_nt_create(cli, filename, CREATE_ACCESS_WRITE);
 513
 514         if (fnum == -1) {
 515                 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
 516                 return EXIT_FAILED;
 517         }
 518
 519         if (!cli_set_secdesc(cli, fnum, sd)) {
 520                 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
 521         }
 522
 523         cli_close(cli, fnum);
 524
 525         return EXIT_OK;
 526 }
 527
 528
 529 /* The MSDN is contradictory over the ordering of ACE entries in an ACL.
 530    However NT4 gives a "The information may have been modified by a
 531    computer running Windows NT 5.0" if denied ACEs do not appear before
 532    allowed ACEs. */
 533
 534 static int ace_compare(SEC_ACE *ace1, SEC_ACE *ace2)
 535 {
 536         if (sec_ace_equal(ace1, ace2)) return 0;
 537         if (ace1->type != ace2->type) return ace2->type - ace1->type;
 538         if (sid_compare(&ace1->sid, &ace2->sid)) return sid_compare(&ace1->sid, &ace2->sid);
 539         if (ace1->flags != ace2->flags) return ace1->flags - ace2->flags;
 540         if (ace1->info.mask != ace2->info.mask) return ace1->info.mask - ace2->info.mask;
 541         if (ace1->size != ace2->size) return ace1->size - ace2->size;
 542         return memcmp(ace1, ace2, sizeof(SEC_ACE));
 543 }
 544
 545 static void sort_acl(SEC_ACL *the_acl)
 546 {
 547         int i;
 548         if (!the_acl) return;
 549
 550         qsort(the_acl->ace, the_acl->num_aces, sizeof(the_acl->ace[0]), QSORT_CAST ace_compare);
 551
 552         for (i=1;i<the_acl->num_aces;) {
 553                 if (sec_ace_equal(&the_acl->ace[i-1], &the_acl->ace[i])) {
 554                         int j;
 555                         for (j=i; j<the_acl->num_aces-1; j++) {
 556                                 the_acl->ace[j] = the_acl->ace[j+1];
 557                         }
 558                         the_acl->num_aces--;
 559                 } else {
 560                         i++;
 561                 }
 562         }
 563 }
 564
 565 /*****************************************************
 566 set the ACLs on a file given an ascii description
 567 *******************************************************/
 568 static int cacl_set(struct cli_state *cli, char *filename,
 569                     char *the_acl, enum acl_mode mode)
 570 {
 571         int fnum;
 572         SEC_DESC *sd, *old;
 573         int i, j;
 574         size_t sd_size;
 575         int result = EXIT_OK;
 576
 577         sd = sec_desc_parse(the_acl);
 578
 579         if (!sd) return EXIT_PARSE_ERROR;
 580         if (test_args) return EXIT_OK;
 581
 582         /* The desired access below is the only one I could find that works
 583            with NT4, W2KP and Samba */
 584
 585         fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
 586
 587         if (fnum == -1) {
 588                 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
 589                 return EXIT_FAILED;
 590         }
 591
 592         old = cli_query_secdesc(cli, fnum);
 593
 594         if (!old) {
 595                 printf("calc_set: Failed to query old descriptor\n");
 596                 return EXIT_FAILED;
 597         }
 598
 599         cli_close(cli, fnum);
 600
 601         /* the logic here is rather more complex than I would like */
 602         switch (mode) {
 603         case SMB_ACL_DELETE:
 604                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
 605                         BOOL found = False;
 606
 607                         for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
 608                                 if (sec_ace_equal(&sd->dacl->ace[i],
 609                                                   &old->dacl->ace[j])) {
 610                                         int k;
 611                                         for (k=j; k<old->dacl->num_aces-1;k++) {
 612                                                 old->dacl->ace[k] = old->dacl->ace[k+1];
 613                                         }
 614                                         old->dacl->num_aces--;
 615                                         if (old->dacl->num_aces == 0) {
 616                                                 free(old->dacl->ace);
 617                                                 old->dacl->ace=NULL;
 618                                                 free(old->dacl);
 619                                                 old->dacl = NULL;
 620                                                 old->off_dacl = 0;
 621                                         }
 622                                         found = True;
 623                                         break;
 624                                 }
 625                         }
 626
 627                         if (!found) {
 628                                 printf("ACL for ACE:");
 629                                 print_ace(stdout, &sd->dacl->ace[i]);
 630                                 printf(" not found\n");
 631                         }
 632                 }
 633                 break;
 634
 635         case SMB_ACL_MODIFY:
 636                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
 637                         BOOL found = False;
 638
 639                         for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
 640                                 if (sid_equal(&sd->dacl->ace[i].sid,
 641                                               &old->dacl->ace[j].sid)) {
 642                                         old->dacl->ace[j] = sd->dacl->ace[i];
 643                                         found = True;
 644                                 }
 645                         }
 646
 647                         if (!found) {
 648                                 fstring str;
 649
 650                                 SidToString(str, &sd->dacl->ace[i].sid);
 651                                 printf("ACL for SID %s not found\n", str);
 652                         }
 653                 }
 654
 655                 break;
 656
 657         case SMB_ACL_ADD:
 658                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
 659                         add_ace(&old->dacl, &sd->dacl->ace[i]);
 660                 }
 661                 break;
 662
 663         case SMB_ACL_SET:
 664                 old = sd;
 665                 break;
 666         }
 667
 668         /* Denied ACE entries must come before allowed ones */
 669         sort_acl(old->dacl);
 670
 671         /* Create new security descriptor and set it */
 672         sd = make_sec_desc(ctx,old->revision, old->owner_sid, old->grp_sid,
 673                            NULL, old->dacl, &sd_size);
 674
 675         fnum = cli_nt_create(cli, filename, CREATE_ACCESS_WRITE);
 676
 677         if (fnum == -1) {
 678                 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
 679                 return EXIT_FAILED;
 680         }
 681
 682         if (!cli_set_secdesc(cli, fnum, sd)) {
 683                 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
 684                 result = EXIT_FAILED;
 685         }
 686
 687         /* Clean up */
 688
 689         cli_close(cli, fnum);
 690
 691         return result;
 692 }
 693
 694
 695 /*****************************************************
 696 return a connection to a server
 697 *******************************************************/
 698 struct cli_state *connect_one(char *share)
 699 {
 700         struct cli_state *c;
 701         struct nmb_name called, calling;
 702         char *server_n;
 703         struct in_addr ip;
 704         extern struct in_addr ipzero;
 705         extern pstring global_myname;
 706
 707         fstrcpy(server,share+2);
 708         share = strchr(server,'\\');
 709         if (!share) return NULL;
 710         *share = 0;
 711         share++;
 712
 713         server_n = server;
 714
 715         ip = ipzero;
 716
 717         make_nmb_name(&calling, global_myname, 0x0);
 718         make_nmb_name(&called , server, 0x20);
 719
 720  again:
 721         ip = ipzero;
 722
 723         /* have to open a new connection */
 724         if (!(c=cli_initialise(NULL)) || (cli_set_port(c, 139) == 0) ||
 725             !cli_connect(c, server_n, &ip)) {
 726                 DEBUG(0,("Connection to %s failed\n", server_n));
 727                 cli_shutdown(c);
 728                 safe_free(c);
 729                 return NULL;
 730         }
 731
 732         if (!cli_session_request(c, &calling, &called)) {
 733                 DEBUG(0,("session request to %s failed\n", called.name));
 734                 cli_shutdown(c);
 735                 safe_free(c);
 736                 if (strcmp(called.name, "*SMBSERVER")) {
 737                         make_nmb_name(&called , "*SMBSERVER", 0x20);
 738                         goto again;
 739                 }
 740                 return NULL;
 741         }
 742
 743         DEBUG(4,(" session request ok\n"));
 744
 745         if (!cli_negprot(c)) {
 746                 DEBUG(0,("protocol negotiation failed\n"));
 747                 cli_shutdown(c);
 748                 safe_free(c);
 749                 return NULL;
 750         }
 751
 752         if (!got_pass) {
 753                 char *pass = getpass("Password: ");
 754                 if (pass) {
 755                         pstrcpy(password, pass);
 756                 }
 757         }
 758
 759         if (!cli_session_setup(c, username,
 760                                password, strlen(password),
 761                                password, strlen(password),
 762                                lp_workgroup())) {
 763                 DEBUG(0,("session setup failed: %s\n", cli_errstr(c)));
 764                 cli_shutdown(c);
 765                 safe_free(c);
 766                 return NULL;
 767         }
 768
 769         DEBUG(4,(" session setup ok\n"));
 770
 771         if (!cli_send_tconX(c, share, "?????",
 772                             password, strlen(password)+1)) {
 773                 DEBUG(0,("tree connect failed: %s\n", cli_errstr(c)));
 774                 cli_shutdown(c);
 775                 safe_free(c);
 776                 return NULL;
 777         }
 778
 779         DEBUG(4,(" tconx ok\n"));
 780
 781         return c;
 782 }
 783
 784
 785 static void usage(void)
 786 {
 787         printf(
 788 "Usage: smbcacls //server1/share1 filename [options]\n\
 789 \n\
 790 \t-D <acls>               delete an acl\n\
 791 \t-M <acls>               modify an acl\n\
 792 \t-A <acls>               add an acl\n\
 793 \t-S <acls>               set acls\n\
 794 \t-C username             change ownership of a file\n\
 795 \t-G username             change group ownership of a file\n\
 796 \t-n                      don't resolve sids or masks to names\n\
 797 \t-h                      print help\n\
 798 \n\
 799 The username can be of the form username%%password or\n\
 800 workgroup\\username%%password.\n\n\
 801 An acl is of the form ACL:<SID>:type/flags/mask\n\
 802 You can string acls together with spaces, commas or newlines\n\
 803 ");
 804 }
 805
 806 /****************************************************************************
 807   main program
 808 ****************************************************************************/
 809  int main(int argc,char *argv[])
 810 {
 811         char *share;
 812         pstring filename;
 813         extern char *optarg;
 814         extern int optind;
 815         extern FILE *dbf;
 816         int opt;
 817         char *p;
 818         static pstring servicesf = CONFIGFILE;
 819         struct cli_state *cli=NULL;
 820         enum acl_mode mode;
 821         char *the_acl = NULL;
 822         enum chown_mode change_mode = REQUEST_NONE;
 823         int result;
 824
 825         ctx=talloc_init();
 826
 827         setlinebuf(stdout);
 828
 829         dbf = stderr;
 830
 831         if (argc < 3 || argv[1][0] == '-') {
 832                 usage();
 833                 talloc_destroy(ctx);
 834                 exit(EXIT_PARSE_ERROR);
 835         }
 836
 837         setup_logging(argv[0],True);
 838
 839         share = argv[1];
 840         pstrcpy(filename, argv[2]);
 841         all_string_sub(share,"/","\\",0);
 842
 843         argc -= 2;
 844         argv += 2;
 845
 846         TimeInit();
 847         charset_initialise();
 848
 849         lp_load(servicesf,True,False,False);
 850         codepage_initialise(lp_client_code_page());
 851         load_interfaces();
 852
 853         if (getenv("USER")) {
 854                 pstrcpy(username,getenv("USER"));
 855
 856                 if ((p=strchr(username,'%'))) {
 857                         *p = 0;
 858                         pstrcpy(password,p+1);
 859                         got_pass = True;
 860                         memset(strchr(getenv("USER"), '%') + 1, 'X',
 861                                strlen(password));
 862                 }
 863         }
 864
 865         while ((opt = getopt(argc, argv, "U:nhS:D:A:M:C:G:t")) != EOF) {
 866                 switch (opt) {
 867                 case 'U':
 868                         pstrcpy(username,optarg);
 869                         p = strchr(username,'%');
 870                         if (p) {
 871                                 *p = 0;
 872                                 pstrcpy(password, p+1);
 873                                 got_pass = 1;
 874                         }
 875                         break;
 876
 877                 case 'S':
 878                         the_acl = optarg;
 879                         mode = SMB_ACL_SET;
 880                         break;
 881
 882                 case 'D':
 883                         the_acl = optarg;
 884                         mode = SMB_ACL_DELETE;
 885                         break;
 886
 887                 case 'M':
 888                         the_acl = optarg;
 889                         mode = SMB_ACL_MODIFY;
 890                         break;
 891
 892                 case 'A':
 893                         the_acl = optarg;
 894                         mode = SMB_ACL_ADD;
 895                         break;
 896
 897                 case 'C':
 898                         pstrcpy(owner_username,optarg);
 899                         change_mode = REQUEST_CHOWN;
 900                         break;
 901
 902                 case 'G':
 903                         pstrcpy(owner_username,optarg);
 904                         change_mode = REQUEST_CHGRP;
 905                         break;
 906
 907                 case 'n':
 908                         numeric = 1;
 909                         break;
 910
 911                 case 't':
 912                         test_args = 1;
 913                         break;
 914
 915                 case 'h':
 916                         usage();
 917                         talloc_destroy(ctx);
 918                         exit(EXIT_PARSE_ERROR);
 919
 920                 default:
 921                         printf("Unknown option %c (%d)\n", (char)opt, opt);
 922                         talloc_destroy(ctx);
 923                         exit(EXIT_PARSE_ERROR);
 924                 }
 925         }
 926
 927         argc -= optind;
 928         argv += optind;
 929
 930         if (argc > 0) {
 931                 usage();
 932                 talloc_destroy(ctx);
 933                 exit(EXIT_PARSE_ERROR);
 934         }
 935
 936         /* Make connection to server */
 937
 938         if (!test_args) {
 939                 cli = connect_one(share);
 940                 if (!cli) {
 941                         talloc_destroy(ctx);
 942                         exit(EXIT_FAILED);
 943                 }
 944         }
 945
 946         all_string_sub(filename, "/", "\\", 0);
 947         if (filename[0] != '\\') {
 948                 pstring s;
 949                 s[0] = '\\';
 950                 safe_strcpy(&s[1], filename, sizeof(pstring)-1);
 951                 pstrcpy(filename, s);
 952         }
 953
 954         /* Perform requested action */
 955
 956         if (change_mode != REQUEST_NONE) {
 957                 result = owner_set(cli, change_mode, filename, owner_username);
 958         } else if (the_acl) {
 959                 result = cacl_set(cli, filename, the_acl, mode);
 960         } else {
 961                 result = cacl_dump(cli, filename);
 962         }
 963
 964         talloc_destroy(ctx);
 965
 966         return result;
 967 }