source3/utils/smbcacls.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    ACL get/set utility
   4
   5    Copyright (C) Andrew Tridgell 2000
   6    Copyright (C) Tim Potter      2000
   7    Copyright (C) Jeremy Allison  2000
   8    Copyright (C) Jelmer Vernooij 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 3 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, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 #include "includes.h"
  25
  26 static int test_args = False;
  27
  28 #define CREATE_ACCESS_READ READ_CONTROL_ACCESS
  29
  30 /* numeric is set when the user wants numeric SIDs and ACEs rather
  31    than going via LSA calls to resolve them */
  32 static int numeric = False;
  33
  34 enum acl_mode {SMB_ACL_SET, SMB_ACL_DELETE, SMB_ACL_MODIFY, SMB_ACL_ADD };
  35 enum chown_mode {REQUEST_NONE, REQUEST_CHOWN, REQUEST_CHGRP};
  36 enum exit_values {EXIT_OK, EXIT_FAILED, EXIT_PARSE_ERROR};
  37
  38 struct perm_value {
  39         const char *perm;
  40         uint32 mask;
  41 };
  42
  43 /* These values discovered by inspection */
  44
  45 static const struct perm_value special_values[] = {
  46         { "R", 0x00120089 },
  47         { "W", 0x00120116 },
  48         { "X", 0x001200a0 },
  49         { "D", 0x00010000 },
  50         { "P", 0x00040000 },
  51         { "O", 0x00080000 },
  52         { NULL, 0 },
  53 };
  54
  55 static const struct perm_value standard_values[] = {
  56         { "READ",   0x001200a9 },
  57         { "CHANGE", 0x001301bf },
  58         { "FULL",   0x001f01ff },
  59         { NULL, 0 },
  60 };
  61
  62 /* Open cli connection and policy handle */
  63
  64 static NTSTATUS cli_lsa_lookup_sid(struct cli_state *cli,
  65                                    const DOM_SID *sid,
  66                                    TALLOC_CTX *mem_ctx,
  67                                    enum lsa_SidType *type,
  68                                    char **domain, char **name)
  69 {
  70         uint16 orig_cnum = cli->cnum;
  71         struct rpc_pipe_client *p;
  72         struct policy_handle handle;
  73         NTSTATUS status;
  74         TALLOC_CTX *frame = talloc_stackframe();
  75         enum lsa_SidType *types;
  76         char **domains;
  77         char **names;
  78
  79         if (!cli_send_tconX(cli, "IPC$", "?????", "", 0)) {
  80                 return cli_nt_error(cli);
  81         }
  82
  83         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
  84                                           &p);
  85         if (!NT_STATUS_IS_OK(status)) {
  86                 goto fail;
  87         }
  88
  89         status = rpccli_lsa_open_policy(p, talloc_tos(), True,
  90                                         GENERIC_EXECUTE_ACCESS, &handle);
  91         if (!NT_STATUS_IS_OK(status)) {
  92                 goto fail;
  93         }
  94
  95         status = rpccli_lsa_lookup_sids(p, talloc_tos(), &handle, 1, sid,
  96                                         &domains, &names, &types);
  97         if (!NT_STATUS_IS_OK(status)) {
  98                 goto fail;
  99         }
 100
 101         *type = types[0];
 102         *domain = talloc_move(mem_ctx, &domains[0]);
 103         *name = talloc_move(mem_ctx, &names[0]);
 104
 105         status = NT_STATUS_OK;
 106  fail:
 107         TALLOC_FREE(p);
 108         cli_tdis(cli);
 109         cli->cnum = orig_cnum;
 110         TALLOC_FREE(frame);
 111         return status;
 112 }
 113
 114 static NTSTATUS cli_lsa_lookup_name(struct cli_state *cli,
 115                                     const char *name,
 116                                     enum lsa_SidType *type,
 117                                     DOM_SID *sid)
 118 {
 119         uint16 orig_cnum = cli->cnum;
 120         struct rpc_pipe_client *p;
 121         struct policy_handle handle;
 122         NTSTATUS status;
 123         TALLOC_CTX *frame = talloc_stackframe();
 124         DOM_SID *sids;
 125         enum lsa_SidType *types;
 126
 127         if (!cli_send_tconX(cli, "IPC$", "?????", "", 0)) {
 128                 return cli_nt_error(cli);
 129         }
 130
 131         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
 132                                           &p);
 133         if (!NT_STATUS_IS_OK(status)) {
 134                 goto fail;
 135         }
 136
 137         status = rpccli_lsa_open_policy(p, talloc_tos(), True,
 138                                         GENERIC_EXECUTE_ACCESS, &handle);
 139         if (!NT_STATUS_IS_OK(status)) {
 140                 goto fail;
 141         }
 142
 143         status = rpccli_lsa_lookup_names(p, talloc_tos(), &handle, 1, &name,
 144                                          NULL, 1, &sids, &types);
 145         if (!NT_STATUS_IS_OK(status)) {
 146                 goto fail;
 147         }
 148
 149         *type = types[0];
 150         *sid = sids[0];
 151
 152         status = NT_STATUS_OK;
 153  fail:
 154         TALLOC_FREE(p);
 155         cli_tdis(cli);
 156         cli->cnum = orig_cnum;
 157         TALLOC_FREE(frame);
 158         return status;
 159 }
 160
 161 /* convert a SID to a string, either numeric or username/group */
 162 static void SidToString(struct cli_state *cli, fstring str, const DOM_SID *sid)
 163 {
 164         char *domain = NULL;
 165         char *name = NULL;
 166         enum lsa_SidType type;
 167         NTSTATUS status;
 168
 169         sid_to_fstring(str, sid);
 170
 171         if (numeric) {
 172                 return;
 173         }
 174
 175         status = cli_lsa_lookup_sid(cli, sid, talloc_tos(), &type,
 176                                     &domain, &name);
 177
 178         if (!NT_STATUS_IS_OK(status)) {
 179                 return;
 180         }
 181
 182         slprintf(str, sizeof(fstring) - 1, "%s%s%s",
 183                  domain, lp_winbind_separator(), name);
 184
 185 }
 186
 187 /* convert a string to a SID, either numeric or username/group */
 188 static bool StringToSid(struct cli_state *cli, DOM_SID *sid, const char *str)
 189 {
 190         enum lsa_SidType type;
 191
 192         if (strncmp(str, "S-", 2) == 0) {
 193                 return string_to_sid(sid, str);
 194         }
 195
 196         return NT_STATUS_IS_OK(cli_lsa_lookup_name(cli, str, &type, sid));
 197 }
 198
 199
 200 /* print an ACE on a FILE, using either numeric or ascii representation */
 201 static void print_ace(struct cli_state *cli, FILE *f, SEC_ACE *ace)
 202 {
 203         const struct perm_value *v;
 204         fstring sidstr;
 205         int do_print = 0;
 206         uint32 got_mask;
 207
 208         SidToString(cli, sidstr, &ace->trustee);
 209
 210         fprintf(f, "%s:", sidstr);
 211
 212         if (numeric) {
 213                 fprintf(f, "%d/%d/0x%08x",
 214                         ace->type, ace->flags, ace->access_mask);
 215                 return;
 216         }
 217
 218         /* Ace type */
 219
 220         if (ace->type == SEC_ACE_TYPE_ACCESS_ALLOWED) {
 221                 fprintf(f, "ALLOWED");
 222         } else if (ace->type == SEC_ACE_TYPE_ACCESS_DENIED) {
 223                 fprintf(f, "DENIED");
 224         } else {
 225                 fprintf(f, "%d", ace->type);
 226         }
 227
 228         /* Not sure what flags can be set in a file ACL */
 229
 230         fprintf(f, "/%d/", ace->flags);
 231
 232         /* Standard permissions */
 233
 234         for (v = standard_values; v->perm; v++) {
 235                 if (ace->access_mask == v->mask) {
 236                         fprintf(f, "%s", v->perm);
 237                         return;
 238                 }
 239         }
 240
 241         /* Special permissions.  Print out a hex value if we have
 242            leftover bits in the mask. */
 243
 244         got_mask = ace->access_mask;
 245
 246  again:
 247         for (v = special_values; v->perm; v++) {
 248                 if ((ace->access_mask & v->mask) == v->mask) {
 249                         if (do_print) {
 250                                 fprintf(f, "%s", v->perm);
 251                         }
 252                         got_mask &= ~v->mask;
 253                 }
 254         }
 255
 256         if (!do_print) {
 257                 if (got_mask != 0) {
 258                         fprintf(f, "0x%08x", ace->access_mask);
 259                 } else {
 260                         do_print = 1;
 261                         goto again;
 262                 }
 263         }
 264 }
 265
 266
 267 /* parse an ACE in the same format as print_ace() */
 268 static bool parse_ace(struct cli_state *cli, SEC_ACE *ace,
 269                       const char *orig_str)
 270 {
 271         char *p;
 272         const char *cp;
 273         char *tok;
 274         unsigned int atype = 0;
 275         unsigned int aflags = 0;
 276         unsigned int amask = 0;
 277         DOM_SID sid;
 278         SEC_ACCESS mask;
 279         const struct perm_value *v;
 280         char *str = SMB_STRDUP(orig_str);
 281         TALLOC_CTX *frame = talloc_stackframe();
 282
 283         if (!str) {
 284                 TALLOC_FREE(frame);
 285                 return False;
 286         }
 287
 288         ZERO_STRUCTP(ace);
 289         p = strchr_m(str,':');
 290         if (!p) {
 291                 printf("ACE '%s': missing ':'.\n", orig_str);
 292                 SAFE_FREE(str);
 293                 TALLOC_FREE(frame);
 294                 return False;
 295         }
 296         *p = '\0';
 297         p++;
 298         /* Try to parse numeric form */
 299
 300         if (sscanf(p, "%i/%i/%i", &atype, &aflags, &amask) == 3 &&
 301             StringToSid(cli, &sid, str)) {
 302                 goto done;
 303         }
 304
 305         /* Try to parse text form */
 306
 307         if (!StringToSid(cli, &sid, str)) {
 308                 printf("ACE '%s': failed to convert '%s' to SID\n",
 309                         orig_str, str);
 310                 SAFE_FREE(str);
 311                 TALLOC_FREE(frame);
 312                 return False;
 313         }
 314
 315         cp = p;
 316         if (!next_token_talloc(frame, &cp, &tok, "/")) {
 317                 printf("ACE '%s': failed to find '/' character.\n",
 318                         orig_str);
 319                 SAFE_FREE(str);
 320                 TALLOC_FREE(frame);
 321                 return False;
 322         }
 323
 324         if (strncmp(tok, "ALLOWED", strlen("ALLOWED")) == 0) {
 325                 atype = SEC_ACE_TYPE_ACCESS_ALLOWED;
 326         } else if (strncmp(tok, "DENIED", strlen("DENIED")) == 0) {
 327                 atype = SEC_ACE_TYPE_ACCESS_DENIED;
 328         } else {
 329                 printf("ACE '%s': missing 'ALLOWED' or 'DENIED' entry at '%s'\n",
 330                         orig_str, tok);
 331                 SAFE_FREE(str);
 332                 TALLOC_FREE(frame);
 333                 return False;
 334         }
 335
 336         /* Only numeric form accepted for flags at present */
 337
 338         if (!(next_token_talloc(frame, &cp, &tok, "/") &&
 339               sscanf(tok, "%i", &aflags))) {
 340                 printf("ACE '%s': bad integer flags entry at '%s'\n",
 341                         orig_str, tok);
 342                 SAFE_FREE(str);
 343                 TALLOC_FREE(frame);
 344                 return False;
 345         }
 346
 347         if (!next_token_talloc(frame, &cp, &tok, "/")) {
 348                 printf("ACE '%s': missing / at '%s'\n",
 349                         orig_str, tok);
 350                 SAFE_FREE(str);
 351                 TALLOC_FREE(frame);
 352                 return False;
 353         }
 354
 355         if (strncmp(tok, "0x", 2) == 0) {
 356                 if (sscanf(tok, "%i", &amask) != 1) {
 357                         printf("ACE '%s': bad hex number at '%s'\n",
 358                                 orig_str, tok);
 359                         SAFE_FREE(str);
 360                         TALLOC_FREE(frame);
 361                         return False;
 362                 }
 363                 goto done;
 364         }
 365
 366         for (v = standard_values; v->perm; v++) {
 367                 if (strcmp(tok, v->perm) == 0) {
 368                         amask = v->mask;
 369                         goto done;
 370                 }
 371         }
 372
 373         p = tok;
 374
 375         while(*p) {
 376                 bool found = False;
 377
 378                 for (v = special_values; v->perm; v++) {
 379                         if (v->perm[0] == *p) {
 380                                 amask |= v->mask;
 381                                 found = True;
 382                         }
 383                 }
 384
 385                 if (!found) {
 386                         printf("ACE '%s': bad permission value at '%s'\n",
 387                                 orig_str, p);
 388                         SAFE_FREE(str);
 389                         TALLOC_FREE(frame);
 390                         return False;
 391                 }
 392                 p++;
 393         }
 394
 395         if (*p) {
 396                 TALLOC_FREE(frame);
 397                 SAFE_FREE(str);
 398                 return False;
 399         }
 400
 401  done:
 402         mask = amask;
 403         init_sec_ace(ace, &sid, atype, mask, aflags);
 404         TALLOC_FREE(frame);
 405         SAFE_FREE(str);
 406         return True;
 407 }
 408
 409 /* add an ACE to a list of ACEs in a SEC_ACL */
 410 static bool add_ace(SEC_ACL **the_acl, SEC_ACE *ace)
 411 {
 412         SEC_ACL *new_ace;
 413         SEC_ACE *aces;
 414         if (! *the_acl) {
 415                 return (((*the_acl) = make_sec_acl(talloc_tos(), 3, 1, ace))
 416                         != NULL);
 417         }
 418
 419         if (!(aces = SMB_CALLOC_ARRAY(SEC_ACE, 1+(*the_acl)->num_aces))) {
 420                 return False;
 421         }
 422         memcpy(aces, (*the_acl)->aces, (*the_acl)->num_aces * sizeof(SEC_ACE));
 423         memcpy(aces+(*the_acl)->num_aces, ace, sizeof(SEC_ACE));
 424         new_ace = make_sec_acl(talloc_tos(),(*the_acl)->revision,1+(*the_acl)->num_aces, aces);
 425         SAFE_FREE(aces);
 426         (*the_acl) = new_ace;
 427         return True;
 428 }
 429
 430 /* parse a ascii version of a security descriptor */
 431 static SEC_DESC *sec_desc_parse(TALLOC_CTX *ctx, struct cli_state *cli, char *str)
 432 {
 433         const char *p = str;
 434         char *tok;
 435         SEC_DESC *ret = NULL;
 436         size_t sd_size;
 437         DOM_SID *grp_sid=NULL, *owner_sid=NULL;
 438         SEC_ACL *dacl=NULL;
 439         int revision=1;
 440
 441         while (next_token_talloc(ctx, &p, &tok, "\t,\r\n")) {
 442                 if (strncmp(tok,"REVISION:", 9) == 0) {
 443                         revision = strtol(tok+9, NULL, 16);
 444                         continue;
 445                 }
 446
 447                 if (strncmp(tok,"OWNER:", 6) == 0) {
 448                         if (owner_sid) {
 449                                 printf("Only specify owner once\n");
 450                                 goto done;
 451                         }
 452                         owner_sid = SMB_CALLOC_ARRAY(DOM_SID, 1);
 453                         if (!owner_sid ||
 454                             !StringToSid(cli, owner_sid, tok+6)) {
 455                                 printf("Failed to parse owner sid\n");
 456                                 goto done;
 457                         }
 458                         continue;
 459                 }
 460
 461                 if (strncmp(tok,"GROUP:", 6) == 0) {
 462                         if (grp_sid) {
 463                                 printf("Only specify group once\n");
 464                                 goto done;
 465                         }
 466                         grp_sid = SMB_CALLOC_ARRAY(DOM_SID, 1);
 467                         if (!grp_sid ||
 468                             !StringToSid(cli, grp_sid, tok+6)) {
 469                                 printf("Failed to parse group sid\n");
 470                                 goto done;
 471                         }
 472                         continue;
 473                 }
 474
 475                 if (strncmp(tok,"ACL:", 4) == 0) {
 476                         SEC_ACE ace;
 477                         if (!parse_ace(cli, &ace, tok+4)) {
 478                                 goto done;
 479                         }
 480                         if(!add_ace(&dacl, &ace)) {
 481                                 printf("Failed to add ACL %s\n", tok);
 482                                 goto done;
 483                         }
 484                         continue;
 485                 }
 486
 487                 printf("Failed to parse token '%s' in security descriptor,\n", tok);
 488                 goto done;
 489         }
 490
 491         ret = make_sec_desc(ctx,revision, SEC_DESC_SELF_RELATIVE, owner_sid, grp_sid,
 492                             NULL, dacl, &sd_size);
 493
 494   done:
 495         SAFE_FREE(grp_sid);
 496         SAFE_FREE(owner_sid);
 497
 498         return ret;
 499 }
 500
 501
 502 /* print a ascii version of a security descriptor on a FILE handle */
 503 static void sec_desc_print(struct cli_state *cli, FILE *f, SEC_DESC *sd)
 504 {
 505         fstring sidstr;
 506         uint32 i;
 507
 508         fprintf(f, "REVISION:%d\n", sd->revision);
 509
 510         /* Print owner and group sid */
 511
 512         if (sd->owner_sid) {
 513                 SidToString(cli, sidstr, sd->owner_sid);
 514         } else {
 515                 fstrcpy(sidstr, "");
 516         }
 517
 518         fprintf(f, "OWNER:%s\n", sidstr);
 519
 520         if (sd->group_sid) {
 521                 SidToString(cli, sidstr, sd->group_sid);
 522         } else {
 523                 fstrcpy(sidstr, "");
 524         }
 525
 526         fprintf(f, "GROUP:%s\n", sidstr);
 527
 528         /* Print aces */
 529         for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
 530                 SEC_ACE *ace = &sd->dacl->aces[i];
 531                 fprintf(f, "ACL:");
 532                 print_ace(cli, f, ace);
 533                 fprintf(f, "\n");
 534         }
 535
 536 }
 537
 538 /*****************************************************
 539 dump the acls for a file
 540 *******************************************************/
 541 static int cacl_dump(struct cli_state *cli, char *filename)
 542 {
 543         int result = EXIT_FAILED;
 544         int fnum = -1;
 545         SEC_DESC *sd;
 546
 547         if (test_args)
 548                 return EXIT_OK;
 549
 550         fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
 551
 552         if (fnum == -1) {
 553                 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
 554                 goto done;
 555         }
 556
 557         sd = cli_query_secdesc(cli, fnum, talloc_tos());
 558
 559         if (!sd) {
 560                 printf("ERROR: secdesc query failed: %s\n", cli_errstr(cli));
 561                 goto done;
 562         }
 563
 564         sec_desc_print(cli, stdout, sd);
 565
 566         result = EXIT_OK;
 567
 568 done:
 569         if (fnum != -1)
 570                 cli_close(cli, fnum);
 571
 572         return result;
 573 }
 574
 575 /*****************************************************
 576 Change the ownership or group ownership of a file. Just
 577 because the NT docs say this can't be done :-). JRA.
 578 *******************************************************/
 579
 580 static int owner_set(struct cli_state *cli, enum chown_mode change_mode,
 581                         const char *filename, const char *new_username)
 582 {
 583         int fnum;
 584         DOM_SID sid;
 585         SEC_DESC *sd, *old;
 586         size_t sd_size;
 587
 588         fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
 589
 590         if (fnum == -1) {
 591                 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
 592                 return EXIT_FAILED;
 593         }
 594
 595         if (!StringToSid(cli, &sid, new_username))
 596                 return EXIT_PARSE_ERROR;
 597
 598         old = cli_query_secdesc(cli, fnum, talloc_tos());
 599
 600         cli_close(cli, fnum);
 601
 602         if (!old) {
 603                 printf("owner_set: Failed to query old descriptor\n");
 604                 return EXIT_FAILED;
 605         }
 606
 607         sd = make_sec_desc(talloc_tos(),old->revision, old->type,
 608                                 (change_mode == REQUEST_CHOWN) ? &sid : NULL,
 609                                 (change_mode == REQUEST_CHGRP) ? &sid : NULL,
 610                            NULL, NULL, &sd_size);
 611
 612         fnum = cli_nt_create(cli, filename, WRITE_OWNER_ACCESS);
 613
 614         if (fnum == -1) {
 615                 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
 616                 return EXIT_FAILED;
 617         }
 618
 619         if (!cli_set_secdesc(cli, fnum, sd)) {
 620                 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
 621         }
 622
 623         cli_close(cli, fnum);
 624
 625         return EXIT_OK;
 626 }
 627
 628
 629 /* The MSDN is contradictory over the ordering of ACE entries in an ACL.
 630    However NT4 gives a "The information may have been modified by a
 631    computer running Windows NT 5.0" if denied ACEs do not appear before
 632    allowed ACEs. */
 633
 634 static int ace_compare(SEC_ACE *ace1, SEC_ACE *ace2)
 635 {
 636         if (sec_ace_equal(ace1, ace2))
 637                 return 0;
 638
 639         if (ace1->type != ace2->type)
 640                 return ace2->type - ace1->type;
 641
 642         if (sid_compare(&ace1->trustee, &ace2->trustee))
 643                 return sid_compare(&ace1->trustee, &ace2->trustee);
 644
 645         if (ace1->flags != ace2->flags)
 646                 return ace1->flags - ace2->flags;
 647
 648         if (ace1->access_mask != ace2->access_mask)
 649                 return ace1->access_mask - ace2->access_mask;
 650
 651         if (ace1->size != ace2->size)
 652                 return ace1->size - ace2->size;
 653
 654         return memcmp(ace1, ace2, sizeof(SEC_ACE));
 655 }
 656
 657 static void sort_acl(SEC_ACL *the_acl)
 658 {
 659         uint32 i;
 660         if (!the_acl) return;
 661
 662         qsort(the_acl->aces, the_acl->num_aces, sizeof(the_acl->aces[0]), QSORT_CAST ace_compare);
 663
 664         for (i=1;i<the_acl->num_aces;) {
 665                 if (sec_ace_equal(&the_acl->aces[i-1], &the_acl->aces[i])) {
 666                         int j;
 667                         for (j=i; j<the_acl->num_aces-1; j++) {
 668                                 the_acl->aces[j] = the_acl->aces[j+1];
 669                         }
 670                         the_acl->num_aces--;
 671                 } else {
 672                         i++;
 673                 }
 674         }
 675 }
 676
 677 /*****************************************************
 678 set the ACLs on a file given an ascii description
 679 *******************************************************/
 680 static int cacl_set(struct cli_state *cli, char *filename,
 681                     char *the_acl, enum acl_mode mode)
 682 {
 683         int fnum;
 684         SEC_DESC *sd, *old;
 685         uint32 i, j;
 686         size_t sd_size;
 687         int result = EXIT_OK;
 688
 689         sd = sec_desc_parse(talloc_tos(), cli, the_acl);
 690
 691         if (!sd) return EXIT_PARSE_ERROR;
 692         if (test_args) return EXIT_OK;
 693
 694         /* The desired access below is the only one I could find that works
 695            with NT4, W2KP and Samba */
 696
 697         fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
 698
 699         if (fnum == -1) {
 700                 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
 701                 return EXIT_FAILED;
 702         }
 703
 704         old = cli_query_secdesc(cli, fnum, talloc_tos());
 705
 706         if (!old) {
 707                 printf("calc_set: Failed to query old descriptor\n");
 708                 return EXIT_FAILED;
 709         }
 710
 711         cli_close(cli, fnum);
 712
 713         /* the logic here is rather more complex than I would like */
 714         switch (mode) {
 715         case SMB_ACL_DELETE:
 716                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
 717                         bool found = False;
 718
 719                         for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
 720                                 if (sec_ace_equal(&sd->dacl->aces[i],
 721                                                   &old->dacl->aces[j])) {
 722                                         uint32 k;
 723                                         for (k=j; k<old->dacl->num_aces-1;k++) {
 724                                                 old->dacl->aces[k] = old->dacl->aces[k+1];
 725                                         }
 726                                         old->dacl->num_aces--;
 727                                         found = True;
 728                                         break;
 729                                 }
 730                         }
 731
 732                         if (!found) {
 733                                 printf("ACL for ACE:");
 734                                 print_ace(cli, stdout, &sd->dacl->aces[i]);
 735                                 printf(" not found\n");
 736                         }
 737                 }
 738                 break;
 739
 740         case SMB_ACL_MODIFY:
 741                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
 742                         bool found = False;
 743
 744                         for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
 745                                 if (sid_equal(&sd->dacl->aces[i].trustee,
 746                                               &old->dacl->aces[j].trustee)) {
 747                                         old->dacl->aces[j] = sd->dacl->aces[i];
 748                                         found = True;
 749                                 }
 750                         }
 751
 752                         if (!found) {
 753                                 fstring str;
 754
 755                                 SidToString(cli, str,
 756                                             &sd->dacl->aces[i].trustee);
 757                                 printf("ACL for SID %s not found\n", str);
 758                         }
 759                 }
 760
 761                 if (sd->owner_sid) {
 762                         old->owner_sid = sd->owner_sid;
 763                 }
 764
 765                 if (sd->group_sid) {
 766                         old->group_sid = sd->group_sid;
 767                 }
 768
 769                 break;
 770
 771         case SMB_ACL_ADD:
 772                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
 773                         add_ace(&old->dacl, &sd->dacl->aces[i]);
 774                 }
 775                 break;
 776
 777         case SMB_ACL_SET:
 778                 old = sd;
 779                 break;
 780         }
 781
 782         /* Denied ACE entries must come before allowed ones */
 783         sort_acl(old->dacl);
 784
 785         /* Create new security descriptor and set it */
 786
 787         /* We used to just have "WRITE_DAC_ACCESS" without WRITE_OWNER.
 788            But if we're sending an owner, even if it's the same as the one
 789            that already exists then W2K3 insists we open with WRITE_OWNER access.
 790            I need to check that setting a SD with no owner set works against WNT
 791            and W2K. JRA.
 792         */
 793
 794         sd = make_sec_desc(talloc_tos(),old->revision, old->type,
 795                            old->owner_sid, old->group_sid,
 796                            NULL, old->dacl, &sd_size);
 797
 798         fnum = cli_nt_create(cli, filename, WRITE_DAC_ACCESS|WRITE_OWNER_ACCESS);
 799
 800         if (fnum == -1) {
 801                 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
 802                 return EXIT_FAILED;
 803         }
 804
 805         if (!cli_set_secdesc(cli, fnum, sd)) {
 806                 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
 807                 result = EXIT_FAILED;
 808         }
 809
 810         /* Clean up */
 811
 812         cli_close(cli, fnum);
 813
 814         return result;
 815 }
 816
 817
 818 /*****************************************************
 819  Return a connection to a server.
 820 *******************************************************/
 821 static struct cli_state *connect_one(const char *server, const char *share)
 822 {
 823         struct cli_state *c = NULL;
 824         struct sockaddr_storage ss;
 825         NTSTATUS nt_status;
 826         uint32_t flags = 0;
 827
 828         zero_addr(&ss);
 829
 830         if (get_cmdline_auth_info_use_kerberos()) {
 831                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS |
 832                          CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
 833         }
 834
 835         if (get_cmdline_auth_info_use_machine_account() &&
 836             !set_cmdline_auth_info_machine_account_creds()) {
 837                 return NULL;
 838         }
 839
 840         if (!get_cmdline_auth_info_got_pass()) {
 841                 char *pass = getpass("Password: ");
 842                 if (pass) {
 843                         set_cmdline_auth_info_password(pass);
 844                 }
 845         }
 846
 847         nt_status = cli_full_connection(&c, global_myname(), server,
 848                                 &ss, 0,
 849                                 share, "?????",
 850                                 get_cmdline_auth_info_username(),
 851                                 lp_workgroup(),
 852                                 get_cmdline_auth_info_password(),
 853                                 flags,
 854                                 get_cmdline_auth_info_signing_state(),
 855                                 NULL);
 856         if (!NT_STATUS_IS_OK(nt_status)) {
 857                 DEBUG(0,("cli_full_connection failed! (%s)\n", nt_errstr(nt_status)));
 858                 return NULL;
 859         }
 860
 861         if (get_cmdline_auth_info_smb_encrypt()) {
 862                 nt_status = cli_cm_force_encryption(c,
 863                                         get_cmdline_auth_info_username(),
 864                                         get_cmdline_auth_info_password(),
 865                                         lp_workgroup(),
 866                                         share);
 867                 if (!NT_STATUS_IS_OK(nt_status)) {
 868                         cli_shutdown(c);
 869                         c = NULL;
 870                 }
 871         }
 872
 873         return c;
 874 }
 875
 876 /****************************************************************************
 877   main program
 878 ****************************************************************************/
 879  int main(int argc, const char *argv[])
 880 {
 881         char *share;
 882         int opt;
 883         enum acl_mode mode = SMB_ACL_SET;
 884         static char *the_acl = NULL;
 885         enum chown_mode change_mode = REQUEST_NONE;
 886         int result;
 887         char *path;
 888         char *filename = NULL;
 889         poptContext pc;
 890         struct poptOption long_options[] = {
 891                 POPT_AUTOHELP
 892                 { "delete", 'D', POPT_ARG_STRING, NULL, 'D', "Delete an acl", "ACL" },
 893                 { "modify", 'M', POPT_ARG_STRING, NULL, 'M', "Modify an acl", "ACL" },
 894                 { "add", 'a', POPT_ARG_STRING, NULL, 'a', "Add an acl", "ACL" },
 895                 { "set", 'S', POPT_ARG_STRING, NULL, 'S', "Set acls", "ACLS" },
 896                 { "chown", 'C', POPT_ARG_STRING, NULL, 'C', "Change ownership of a file", "USERNAME" },
 897                 { "chgrp", 'G', POPT_ARG_STRING, NULL, 'G', "Change group ownership of a file", "GROUPNAME" },
 898                 { "numeric", 0, POPT_ARG_NONE, &numeric, True, "Don't resolve sids or masks to names" },
 899                 { "test-args", 't', POPT_ARG_NONE, &test_args, True, "Test arguments"},
 900                 POPT_COMMON_SAMBA
 901                 POPT_COMMON_CONNECTION
 902                 POPT_COMMON_CREDENTIALS
 903                 POPT_TABLEEND
 904         };
 905
 906         struct cli_state *cli;
 907         TALLOC_CTX *frame = talloc_stackframe();
 908         const char *owner_username = "";
 909         char *server;
 910
 911         load_case_tables();
 912
 913
 914         /* set default debug level to 1 regardless of what smb.conf sets */
 915         setup_logging( "smbcacls", True );
 916         DEBUGLEVEL_CLASS[DBGC_ALL] = 1;
 917         dbf = x_stderr;
 918         x_setbuf( x_stderr, NULL );
 919
 920         setlinebuf(stdout);
 921
 922         lp_load(get_dyn_CONFIGFILE(),True,False,False,True);
 923         load_interfaces();
 924
 925         pc = poptGetContext("smbcacls", argc, argv, long_options, 0);
 926
 927         poptSetOtherOptionHelp(pc, "//server1/share1 filename\nACLs look like: "
 928                 "'ACL:user:[ALLOWED|DENIED]/flags/permissions'");
 929
 930         while ((opt = poptGetNextOpt(pc)) != -1) {
 931                 switch (opt) {
 932                 case 'S':
 933                         the_acl = smb_xstrdup(poptGetOptArg(pc));
 934                         mode = SMB_ACL_SET;
 935                         break;
 936
 937                 case 'D':
 938                         the_acl = smb_xstrdup(poptGetOptArg(pc));
 939                         mode = SMB_ACL_DELETE;
 940                         break;
 941
 942                 case 'M':
 943                         the_acl = smb_xstrdup(poptGetOptArg(pc));
 944                         mode = SMB_ACL_MODIFY;
 945                         break;
 946
 947                 case 'a':
 948                         the_acl = smb_xstrdup(poptGetOptArg(pc));
 949                         mode = SMB_ACL_ADD;
 950                         break;
 951
 952                 case 'C':
 953                         owner_username = poptGetOptArg(pc);
 954                         change_mode = REQUEST_CHOWN;
 955                         break;
 956
 957                 case 'G':
 958                         owner_username = poptGetOptArg(pc);
 959                         change_mode = REQUEST_CHGRP;
 960                         break;
 961                 }
 962         }
 963
 964         /* Make connection to server */
 965         if(!poptPeekArg(pc)) {
 966                 poptPrintUsage(pc, stderr, 0);
 967                 return -1;
 968         }
 969
 970         path = talloc_strdup(frame, poptGetArg(pc));
 971         if (!path) {
 972                 return -1;
 973         }
 974
 975         if(!poptPeekArg(pc)) {
 976                 poptPrintUsage(pc, stderr, 0);
 977                 return -1;
 978         }
 979
 980         filename = talloc_strdup(frame, poptGetArg(pc));
 981         if (!filename) {
 982                 return -1;
 983         }
 984
 985         string_replace(path,'/','\\');
 986
 987         server = talloc_strdup(frame, path+2);
 988         if (!server) {
 989                 return -1;
 990         }
 991         share = strchr_m(server,'\\');
 992         if (!share) {
 993                 printf("Invalid argument: %s\n", share);
 994                 return -1;
 995         }
 996
 997         *share = 0;
 998         share++;
 999
1000         if (!test_args) {
1001                 cli = connect_one(server, share);
1002                 if (!cli) {
1003                         exit(EXIT_FAILED);
1004                 }
1005         } else {
1006                 exit(0);
1007         }
1008
1009         string_replace(filename, '/', '\\');
1010         if (filename[0] != '\\') {
1011                 filename = talloc_asprintf(frame,
1012                                 "\\%s",
1013                                 filename);
1014                 if (!filename) {
1015                         return -1;
1016                 }
1017         }
1018
1019         /* Perform requested action */
1020
1021         if (change_mode != REQUEST_NONE) {
1022                 result = owner_set(cli, change_mode, filename, owner_username);
1023         } else if (the_acl) {
1024                 result = cacl_set(cli, filename, the_acl, mode);
1025         } else {
1026                 result = cacl_dump(cli, filename);
1027         }
1028
1029         TALLOC_FREE(frame);
1030
1031         return result;
1032 }