source/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;
  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;
  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         if (*domain) {
 183                 slprintf(str, sizeof(fstring) - 1, "%s%s%s",
 184                         domain, lp_winbind_separator(), name);
 185         } else {
 186                 fstrcpy(str, name);
 187         }
 188 }
 189
 190 /* convert a string to a SID, either numeric or username/group */
 191 static bool StringToSid(struct cli_state *cli, DOM_SID *sid, const char *str)
 192 {
 193         enum lsa_SidType type;
 194
 195         if (strncmp(str, "S-", 2) == 0) {
 196                 return string_to_sid(sid, str);
 197         }
 198
 199         return NT_STATUS_IS_OK(cli_lsa_lookup_name(cli, str, &type, sid));
 200 }
 201
 202 static void print_ace_flags(FILE *f, uint8_t flags)
 203 {
 204         char *str = talloc_strdup(NULL, "");
 205
 206         if (!str) {
 207                 goto out;
 208         }
 209
 210         if (flags & SEC_ACE_FLAG_OBJECT_INHERIT) {
 211                 str = talloc_asprintf(str, "%s%s",
 212                                 str, "OI|");
 213                 if (!str) {
 214                         goto out;
 215                 }
 216         }
 217         if (flags & SEC_ACE_FLAG_CONTAINER_INHERIT) {
 218                 str = talloc_asprintf(str, "%s%s",
 219                                 str, "CI|");
 220                 if (!str) {
 221                         goto out;
 222                 }
 223         }
 224         if (flags & SEC_ACE_FLAG_NO_PROPAGATE_INHERIT) {
 225                 str = talloc_asprintf(str, "%s%s",
 226                                 str, "NP|");
 227                 if (!str) {
 228                         goto out;
 229                 }
 230         }
 231         if (flags & SEC_ACE_FLAG_INHERIT_ONLY) {
 232                 str = talloc_asprintf(str, "%s%s",
 233                                 str, "IO|");
 234                 if (!str) {
 235                         goto out;
 236                 }
 237         }
 238         if (flags & SEC_ACE_FLAG_INHERITED_ACE) {
 239                 str = talloc_asprintf(str, "%s%s",
 240                                 str, "I|");
 241                 if (!str) {
 242                         goto out;
 243                 }
 244         }
 245         /* Ignore define SEC_ACE_FLAG_SUCCESSFUL_ACCESS ( 0x40 )
 246            and SEC_ACE_FLAG_FAILED_ACCESS ( 0x80 ) as they're
 247            audit ace flags. */
 248
 249         if (str[strlen(str)-1] == '|') {
 250                 str[strlen(str)-1] = '\0';
 251                 fprintf(f, "/%s/", str);
 252         } else {
 253                 fprintf(f, "/0x%x/", flags);
 254         }
 255         TALLOC_FREE(str);
 256         return;
 257
 258   out:
 259         fprintf(f, "/0x%x/", flags);
 260 }
 261
 262 /* print an ACE on a FILE, using either numeric or ascii representation */
 263 static void print_ace(struct cli_state *cli, FILE *f, SEC_ACE *ace)
 264 {
 265         const struct perm_value *v;
 266         fstring sidstr;
 267         int do_print = 0;
 268         uint32 got_mask;
 269
 270         SidToString(cli, sidstr, &ace->trustee);
 271
 272         fprintf(f, "%s:", sidstr);
 273
 274         if (numeric) {
 275                 fprintf(f, "%d/0x%x/0x%08x",
 276                         ace->type, ace->flags, ace->access_mask);
 277                 return;
 278         }
 279
 280         /* Ace type */
 281
 282         if (ace->type == SEC_ACE_TYPE_ACCESS_ALLOWED) {
 283                 fprintf(f, "ALLOWED");
 284         } else if (ace->type == SEC_ACE_TYPE_ACCESS_DENIED) {
 285                 fprintf(f, "DENIED");
 286         } else {
 287                 fprintf(f, "%d", ace->type);
 288         }
 289
 290         print_ace_flags(f, ace->flags);
 291
 292         /* Standard permissions */
 293
 294         for (v = standard_values; v->perm; v++) {
 295                 if (ace->access_mask == v->mask) {
 296                         fprintf(f, "%s", v->perm);
 297                         return;
 298                 }
 299         }
 300
 301         /* Special permissions.  Print out a hex value if we have
 302            leftover bits in the mask. */
 303
 304         got_mask = ace->access_mask;
 305
 306  again:
 307         for (v = special_values; v->perm; v++) {
 308                 if ((ace->access_mask & v->mask) == v->mask) {
 309                         if (do_print) {
 310                                 fprintf(f, "%s", v->perm);
 311                         }
 312                         got_mask &= ~v->mask;
 313                 }
 314         }
 315
 316         if (!do_print) {
 317                 if (got_mask != 0) {
 318                         fprintf(f, "0x%08x", ace->access_mask);
 319                 } else {
 320                         do_print = 1;
 321                         goto again;
 322                 }
 323         }
 324 }
 325
 326 static bool parse_ace_flags(const char *str, unsigned int *pflags)
 327 {
 328         const char *p = str;
 329         *pflags = 0;
 330
 331         while (*p) {
 332                 if (strnequal(p, "OI", 2)) {
 333                         *pflags |= SEC_ACE_FLAG_OBJECT_INHERIT;
 334                         p += 2;
 335                 } else if (strnequal(p, "CI", 2)) {
 336                         *pflags |= SEC_ACE_FLAG_CONTAINER_INHERIT;
 337                         p += 2;
 338                 } else if (strnequal(p, "NP", 2)) {
 339                         *pflags |= SEC_ACE_FLAG_NO_PROPAGATE_INHERIT;
 340                         p += 2;
 341                 } else if (strnequal(p, "IO", 2)) {
 342                         *pflags |= SEC_ACE_FLAG_INHERIT_ONLY;
 343                         p += 2;
 344                 } else if (*p == 'I') {
 345                         *pflags |= SEC_ACE_FLAG_INHERITED_ACE;
 346                         p += 1;
 347                 } else if (*p) {
 348                         return false;
 349                 }
 350
 351                 if (*p != '|' && *p != '\0') {
 352                         return false;
 353                 }
 354         }
 355         return true;
 356 }
 357
 358 /* parse an ACE in the same format as print_ace() */
 359 static bool parse_ace(struct cli_state *cli, SEC_ACE *ace,
 360                       const char *orig_str)
 361 {
 362         char *p;
 363         const char *cp;
 364         char *tok;
 365         unsigned int atype = 0;
 366         unsigned int aflags = 0;
 367         unsigned int amask = 0;
 368         DOM_SID sid;
 369         uint32_t mask;
 370         const struct perm_value *v;
 371         char *str = SMB_STRDUP(orig_str);
 372         TALLOC_CTX *frame = talloc_stackframe();
 373
 374         if (!str) {
 375                 TALLOC_FREE(frame);
 376                 return False;
 377         }
 378
 379         ZERO_STRUCTP(ace);
 380         p = strchr_m(str,':');
 381         if (!p) {
 382                 printf("ACE '%s': missing ':'.\n", orig_str);
 383                 SAFE_FREE(str);
 384                 TALLOC_FREE(frame);
 385                 return False;
 386         }
 387         *p = '\0';
 388         p++;
 389         /* Try to parse numeric form */
 390
 391         if (sscanf(p, "%i/%i/%i", &atype, &aflags, &amask) == 3 &&
 392             StringToSid(cli, &sid, str)) {
 393                 goto done;
 394         }
 395
 396         /* Try to parse text form */
 397
 398         if (!StringToSid(cli, &sid, str)) {
 399                 printf("ACE '%s': failed to convert '%s' to SID\n",
 400                         orig_str, str);
 401                 SAFE_FREE(str);
 402                 TALLOC_FREE(frame);
 403                 return False;
 404         }
 405
 406         cp = p;
 407         if (!next_token_talloc(frame, &cp, &tok, "/")) {
 408                 printf("ACE '%s': failed to find '/' character.\n",
 409                         orig_str);
 410                 SAFE_FREE(str);
 411                 TALLOC_FREE(frame);
 412                 return False;
 413         }
 414
 415         if (strncmp(tok, "ALLOWED", strlen("ALLOWED")) == 0) {
 416                 atype = SEC_ACE_TYPE_ACCESS_ALLOWED;
 417         } else if (strncmp(tok, "DENIED", strlen("DENIED")) == 0) {
 418                 atype = SEC_ACE_TYPE_ACCESS_DENIED;
 419         } else {
 420                 printf("ACE '%s': missing 'ALLOWED' or 'DENIED' entry at '%s'\n",
 421                         orig_str, tok);
 422                 SAFE_FREE(str);
 423                 TALLOC_FREE(frame);
 424                 return False;
 425         }
 426
 427         /* Only numeric form accepted for flags at present */
 428
 429         if (!next_token_talloc(frame, &cp, &tok, "/")) {
 430                 printf("ACE '%s': bad flags entry at '%s'\n",
 431                         orig_str, tok);
 432                 SAFE_FREE(str);
 433                 TALLOC_FREE(frame);
 434                 return False;
 435         }
 436
 437         if (tok[0] < '0' || tok[0] > '9') {
 438                 if (!parse_ace_flags(tok, &aflags)) {
 439                         printf("ACE '%s': bad named flags entry at '%s'\n",
 440                                 orig_str, tok);
 441                         SAFE_FREE(str);
 442                         TALLOC_FREE(frame);
 443                         return False;
 444                 }
 445         } else if (strnequal(tok, "0x", 2)) {
 446                 if (!sscanf(tok, "%x", &aflags)) {
 447                         printf("ACE '%s': bad hex flags entry at '%s'\n",
 448                                 orig_str, tok);
 449                         SAFE_FREE(str);
 450                         TALLOC_FREE(frame);
 451                         return False;
 452                 }
 453         } else {
 454                 if (!sscanf(tok, "%i", &aflags)) {
 455                         printf("ACE '%s': bad integer flags entry at '%s'\n",
 456                                 orig_str, tok);
 457                         SAFE_FREE(str);
 458                         TALLOC_FREE(frame);
 459                         return False;
 460                 }
 461         }
 462
 463         if (!next_token_talloc(frame, &cp, &tok, "/")) {
 464                 printf("ACE '%s': missing / at '%s'\n",
 465                         orig_str, tok);
 466                 SAFE_FREE(str);
 467                 TALLOC_FREE(frame);
 468                 return False;
 469         }
 470
 471         if (strncmp(tok, "0x", 2) == 0) {
 472                 if (sscanf(tok, "%i", &amask) != 1) {
 473                         printf("ACE '%s': bad hex number at '%s'\n",
 474                                 orig_str, tok);
 475                         SAFE_FREE(str);
 476                         TALLOC_FREE(frame);
 477                         return False;
 478                 }
 479                 goto done;
 480         }
 481
 482         for (v = standard_values; v->perm; v++) {
 483                 if (strcmp(tok, v->perm) == 0) {
 484                         amask = v->mask;
 485                         goto done;
 486                 }
 487         }
 488
 489         p = tok;
 490
 491         while(*p) {
 492                 bool found = False;
 493
 494                 for (v = special_values; v->perm; v++) {
 495                         if (v->perm[0] == *p) {
 496                                 amask |= v->mask;
 497                                 found = True;
 498                         }
 499                 }
 500
 501                 if (!found) {
 502                         printf("ACE '%s': bad permission value at '%s'\n",
 503                                 orig_str, p);
 504                         SAFE_FREE(str);
 505                         TALLOC_FREE(frame);
 506                         return False;
 507                 }
 508                 p++;
 509         }
 510
 511         if (*p) {
 512                 TALLOC_FREE(frame);
 513                 SAFE_FREE(str);
 514                 return False;
 515         }
 516
 517  done:
 518         mask = amask;
 519         init_sec_ace(ace, &sid, atype, mask, aflags);
 520         TALLOC_FREE(frame);
 521         SAFE_FREE(str);
 522         return True;
 523 }
 524
 525 /* add an ACE to a list of ACEs in a SEC_ACL */
 526 static bool add_ace(SEC_ACL **the_acl, SEC_ACE *ace)
 527 {
 528         SEC_ACL *new_ace;
 529         SEC_ACE *aces;
 530         if (! *the_acl) {
 531                 return (((*the_acl) = make_sec_acl(talloc_tos(), 3, 1, ace))
 532                         != NULL);
 533         }
 534
 535         if (!(aces = SMB_CALLOC_ARRAY(SEC_ACE, 1+(*the_acl)->num_aces))) {
 536                 return False;
 537         }
 538         memcpy(aces, (*the_acl)->aces, (*the_acl)->num_aces * sizeof(SEC_ACE));
 539         memcpy(aces+(*the_acl)->num_aces, ace, sizeof(SEC_ACE));
 540         new_ace = make_sec_acl(talloc_tos(),(*the_acl)->revision,1+(*the_acl)->num_aces, aces);
 541         SAFE_FREE(aces);
 542         (*the_acl) = new_ace;
 543         return True;
 544 }
 545
 546 /* parse a ascii version of a security descriptor */
 547 static SEC_DESC *sec_desc_parse(TALLOC_CTX *ctx, struct cli_state *cli, char *str)
 548 {
 549         const char *p = str;
 550         char *tok;
 551         SEC_DESC *ret = NULL;
 552         size_t sd_size;
 553         DOM_SID *grp_sid=NULL, *owner_sid=NULL;
 554         SEC_ACL *dacl=NULL;
 555         int revision=1;
 556
 557         while (next_token_talloc(ctx, &p, &tok, "\t,\r\n")) {
 558                 if (strncmp(tok,"REVISION:", 9) == 0) {
 559                         revision = strtol(tok+9, NULL, 16);
 560                         continue;
 561                 }
 562
 563                 if (strncmp(tok,"OWNER:", 6) == 0) {
 564                         if (owner_sid) {
 565                                 printf("Only specify owner once\n");
 566                                 goto done;
 567                         }
 568                         owner_sid = SMB_CALLOC_ARRAY(DOM_SID, 1);
 569                         if (!owner_sid ||
 570                             !StringToSid(cli, owner_sid, tok+6)) {
 571                                 printf("Failed to parse owner sid\n");
 572                                 goto done;
 573                         }
 574                         continue;
 575                 }
 576
 577                 if (strncmp(tok,"GROUP:", 6) == 0) {
 578                         if (grp_sid) {
 579                                 printf("Only specify group once\n");
 580                                 goto done;
 581                         }
 582                         grp_sid = SMB_CALLOC_ARRAY(DOM_SID, 1);
 583                         if (!grp_sid ||
 584                             !StringToSid(cli, grp_sid, tok+6)) {
 585                                 printf("Failed to parse group sid\n");
 586                                 goto done;
 587                         }
 588                         continue;
 589                 }
 590
 591                 if (strncmp(tok,"ACL:", 4) == 0) {
 592                         SEC_ACE ace;
 593                         if (!parse_ace(cli, &ace, tok+4)) {
 594                                 goto done;
 595                         }
 596                         if(!add_ace(&dacl, &ace)) {
 597                                 printf("Failed to add ACL %s\n", tok);
 598                                 goto done;
 599                         }
 600                         continue;
 601                 }
 602
 603                 printf("Failed to parse token '%s' in security descriptor,\n", tok);
 604                 goto done;
 605         }
 606
 607         ret = make_sec_desc(ctx,revision, SEC_DESC_SELF_RELATIVE, owner_sid, grp_sid,
 608                             NULL, dacl, &sd_size);
 609
 610   done:
 611         SAFE_FREE(grp_sid);
 612         SAFE_FREE(owner_sid);
 613
 614         return ret;
 615 }
 616
 617
 618 /* print a ascii version of a security descriptor on a FILE handle */
 619 static void sec_desc_print(struct cli_state *cli, FILE *f, SEC_DESC *sd)
 620 {
 621         fstring sidstr;
 622         uint32 i;
 623
 624         fprintf(f, "REVISION:%d\n", sd->revision);
 625         fprintf(f, "CONTROL:0x%x\n", sd->type);
 626
 627         /* Print owner and group sid */
 628
 629         if (sd->owner_sid) {
 630                 SidToString(cli, sidstr, sd->owner_sid);
 631         } else {
 632                 fstrcpy(sidstr, "");
 633         }
 634
 635         fprintf(f, "OWNER:%s\n", sidstr);
 636
 637         if (sd->group_sid) {
 638                 SidToString(cli, sidstr, sd->group_sid);
 639         } else {
 640                 fstrcpy(sidstr, "");
 641         }
 642
 643         fprintf(f, "GROUP:%s\n", sidstr);
 644
 645         /* Print aces */
 646         for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
 647                 SEC_ACE *ace = &sd->dacl->aces[i];
 648                 fprintf(f, "ACL:");
 649                 print_ace(cli, f, ace);
 650                 fprintf(f, "\n");
 651         }
 652
 653 }
 654
 655 /*****************************************************
 656 dump the acls for a file
 657 *******************************************************/
 658 static int cacl_dump(struct cli_state *cli, char *filename)
 659 {
 660         int result = EXIT_FAILED;
 661         int fnum = -1;
 662         SEC_DESC *sd;
 663
 664         if (test_args)
 665                 return EXIT_OK;
 666
 667         fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
 668
 669         if (fnum == -1) {
 670                 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
 671                 goto done;
 672         }
 673
 674         sd = cli_query_secdesc(cli, fnum, talloc_tos());
 675
 676         if (!sd) {
 677                 printf("ERROR: secdesc query failed: %s\n", cli_errstr(cli));
 678                 goto done;
 679         }
 680
 681         sec_desc_print(cli, stdout, sd);
 682
 683         result = EXIT_OK;
 684
 685 done:
 686         if (fnum != -1)
 687                 cli_close(cli, fnum);
 688
 689         return result;
 690 }
 691
 692 /*****************************************************
 693 Change the ownership or group ownership of a file. Just
 694 because the NT docs say this can't be done :-). JRA.
 695 *******************************************************/
 696
 697 static int owner_set(struct cli_state *cli, enum chown_mode change_mode,
 698                         const char *filename, const char *new_username)
 699 {
 700         int fnum;
 701         DOM_SID sid;
 702         SEC_DESC *sd, *old;
 703         size_t sd_size;
 704
 705         fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
 706
 707         if (fnum == -1) {
 708                 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
 709                 return EXIT_FAILED;
 710         }
 711
 712         if (!StringToSid(cli, &sid, new_username))
 713                 return EXIT_PARSE_ERROR;
 714
 715         old = cli_query_secdesc(cli, fnum, talloc_tos());
 716
 717         cli_close(cli, fnum);
 718
 719         if (!old) {
 720                 printf("owner_set: Failed to query old descriptor\n");
 721                 return EXIT_FAILED;
 722         }
 723
 724         sd = make_sec_desc(talloc_tos(),old->revision, old->type,
 725                                 (change_mode == REQUEST_CHOWN) ? &sid : NULL,
 726                                 (change_mode == REQUEST_CHGRP) ? &sid : NULL,
 727                            NULL, NULL, &sd_size);
 728
 729         fnum = cli_nt_create(cli, filename, WRITE_OWNER_ACCESS);
 730
 731         if (fnum == -1) {
 732                 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
 733                 return EXIT_FAILED;
 734         }
 735
 736         if (!cli_set_secdesc(cli, fnum, sd)) {
 737                 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
 738                 cli_close(cli, fnum);
 739                 return EXIT_FAILED;
 740         }
 741
 742         cli_close(cli, fnum);
 743
 744         return EXIT_OK;
 745 }
 746
 747
 748 /* The MSDN is contradictory over the ordering of ACE entries in an
 749    ACL.  However NT4 gives a "The information may have been modified
 750    by a computer running Windows NT 5.0" if denied ACEs do not appear
 751    before allowed ACEs. At
 752    http://technet.microsoft.com/en-us/library/cc781716.aspx the
 753    canonical order is specified as "Explicit Deny, Explicit Allow,
 754    Inherited ACEs unchanged" */
 755
 756 static int ace_compare(SEC_ACE *ace1, SEC_ACE *ace2)
 757 {
 758         if (sec_ace_equal(ace1, ace2))
 759                 return 0;
 760
 761         if ((ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
 762                         !(ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
 763                 return 1;
 764         if (!(ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
 765                         (ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
 766                 return -1;
 767         if ((ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
 768                         (ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
 769                 return ace1 - ace2;
 770
 771         if (ace1->type != ace2->type)
 772                 return ace2->type - ace1->type;
 773
 774         if (sid_compare(&ace1->trustee, &ace2->trustee))
 775                 return sid_compare(&ace1->trustee, &ace2->trustee);
 776
 777         if (ace1->flags != ace2->flags)
 778                 return ace1->flags - ace2->flags;
 779
 780         if (ace1->access_mask != ace2->access_mask)
 781                 return ace1->access_mask - ace2->access_mask;
 782
 783         if (ace1->size != ace2->size)
 784                 return ace1->size - ace2->size;
 785
 786         return memcmp(ace1, ace2, sizeof(SEC_ACE));
 787 }
 788
 789 static void sort_acl(SEC_ACL *the_acl)
 790 {
 791         uint32 i;
 792         if (!the_acl) return;
 793
 794         qsort(the_acl->aces, the_acl->num_aces, sizeof(the_acl->aces[0]), QSORT_CAST ace_compare);
 795
 796         for (i=1;i<the_acl->num_aces;) {
 797                 if (sec_ace_equal(&the_acl->aces[i-1], &the_acl->aces[i])) {
 798                         int j;
 799                         for (j=i; j<the_acl->num_aces-1; j++) {
 800                                 the_acl->aces[j] = the_acl->aces[j+1];
 801                         }
 802                         the_acl->num_aces--;
 803                 } else {
 804                         i++;
 805                 }
 806         }
 807 }
 808
 809 /*****************************************************
 810 set the ACLs on a file given an ascii description
 811 *******************************************************/
 812
 813 static int cacl_set(struct cli_state *cli, char *filename,
 814                     char *the_acl, enum acl_mode mode)
 815 {
 816         int fnum;
 817         SEC_DESC *sd, *old;
 818         uint32 i, j;
 819         size_t sd_size;
 820         int result = EXIT_OK;
 821
 822         sd = sec_desc_parse(talloc_tos(), cli, the_acl);
 823
 824         if (!sd) return EXIT_PARSE_ERROR;
 825         if (test_args) return EXIT_OK;
 826
 827         /* The desired access below is the only one I could find that works
 828            with NT4, W2KP and Samba */
 829
 830         fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
 831
 832         if (fnum == -1) {
 833                 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
 834                 return EXIT_FAILED;
 835         }
 836
 837         old = cli_query_secdesc(cli, fnum, talloc_tos());
 838
 839         if (!old) {
 840                 printf("calc_set: Failed to query old descriptor\n");
 841                 return EXIT_FAILED;
 842         }
 843
 844         cli_close(cli, fnum);
 845
 846         /* the logic here is rather more complex than I would like */
 847         switch (mode) {
 848         case SMB_ACL_DELETE:
 849                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
 850                         bool found = False;
 851
 852                         for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
 853                                 if (sec_ace_equal(&sd->dacl->aces[i],
 854                                                   &old->dacl->aces[j])) {
 855                                         uint32 k;
 856                                         for (k=j; k<old->dacl->num_aces-1;k++) {
 857                                                 old->dacl->aces[k] = old->dacl->aces[k+1];
 858                                         }
 859                                         old->dacl->num_aces--;
 860                                         found = True;
 861                                         break;
 862                                 }
 863                         }
 864
 865                         if (!found) {
 866                                 printf("ACL for ACE:");
 867                                 print_ace(cli, stdout, &sd->dacl->aces[i]);
 868                                 printf(" not found\n");
 869                         }
 870                 }
 871                 break;
 872
 873         case SMB_ACL_MODIFY:
 874                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
 875                         bool found = False;
 876
 877                         for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
 878                                 if (sid_equal(&sd->dacl->aces[i].trustee,
 879                                               &old->dacl->aces[j].trustee)) {
 880                                         old->dacl->aces[j] = sd->dacl->aces[i];
 881                                         found = True;
 882                                 }
 883                         }
 884
 885                         if (!found) {
 886                                 fstring str;
 887
 888                                 SidToString(cli, str,
 889                                             &sd->dacl->aces[i].trustee);
 890                                 printf("ACL for SID %s not found\n", str);
 891                         }
 892                 }
 893
 894                 if (sd->owner_sid) {
 895                         old->owner_sid = sd->owner_sid;
 896                 }
 897
 898                 if (sd->group_sid) {
 899                         old->group_sid = sd->group_sid;
 900                 }
 901
 902                 break;
 903
 904         case SMB_ACL_ADD:
 905                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
 906                         add_ace(&old->dacl, &sd->dacl->aces[i]);
 907                 }
 908                 break;
 909
 910         case SMB_ACL_SET:
 911                 old = sd;
 912                 break;
 913         }
 914
 915         /* Denied ACE entries must come before allowed ones */
 916         sort_acl(old->dacl);
 917
 918         /* Create new security descriptor and set it */
 919
 920         /* We used to just have "WRITE_DAC_ACCESS" without WRITE_OWNER.
 921            But if we're sending an owner, even if it's the same as the one
 922            that already exists then W2K3 insists we open with WRITE_OWNER access.
 923            I need to check that setting a SD with no owner set works against WNT
 924            and W2K. JRA.
 925         */
 926
 927         sd = make_sec_desc(talloc_tos(),old->revision, old->type,
 928                            old->owner_sid, old->group_sid,
 929                            NULL, old->dacl, &sd_size);
 930
 931         fnum = cli_nt_create(cli, filename, WRITE_DAC_ACCESS|WRITE_OWNER_ACCESS);
 932
 933         if (fnum == -1) {
 934                 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
 935                 return EXIT_FAILED;
 936         }
 937
 938         if (!cli_set_secdesc(cli, fnum, sd)) {
 939                 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
 940                 result = EXIT_FAILED;
 941         }
 942
 943         /* Clean up */
 944
 945         cli_close(cli, fnum);
 946
 947         return result;
 948 }
 949
 950
 951 /*****************************************************
 952  Return a connection to a server.
 953 *******************************************************/
 954 static struct cli_state *connect_one(const char *server, const char *share)
 955 {
 956         struct cli_state *c = NULL;
 957         struct sockaddr_storage ss;
 958         NTSTATUS nt_status;
 959         uint32_t flags = 0;
 960
 961         zero_sockaddr(&ss);
 962
 963         if (get_cmdline_auth_info_use_kerberos()) {
 964                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS |
 965                          CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
 966         }
 967
 968         if (get_cmdline_auth_info_use_machine_account() &&
 969             !set_cmdline_auth_info_machine_account_creds()) {
 970                 return NULL;
 971         }
 972
 973         if (!get_cmdline_auth_info_got_pass()) {
 974                 char *pass = getpass("Password: ");
 975                 if (pass) {
 976                         set_cmdline_auth_info_password(pass);
 977                 }
 978         }
 979
 980         nt_status = cli_full_connection(&c, global_myname(), server,
 981                                 &ss, 0,
 982                                 share, "?????",
 983                                 get_cmdline_auth_info_username(),
 984                                 lp_workgroup(),
 985                                 get_cmdline_auth_info_password(),
 986                                 flags,
 987                                 get_cmdline_auth_info_signing_state(),
 988                                 NULL);
 989         if (!NT_STATUS_IS_OK(nt_status)) {
 990                 DEBUG(0,("cli_full_connection failed! (%s)\n", nt_errstr(nt_status)));
 991                 return NULL;
 992         }
 993
 994         if (get_cmdline_auth_info_smb_encrypt()) {
 995                 nt_status = cli_cm_force_encryption(c,
 996                                         get_cmdline_auth_info_username(),
 997                                         get_cmdline_auth_info_password(),
 998                                         lp_workgroup(),
 999                                         share);
1000                 if (!NT_STATUS_IS_OK(nt_status)) {
1001                         cli_shutdown(c);
1002                         c = NULL;
1003                 }
1004         }
1005
1006         return c;
1007 }
1008
1009 /****************************************************************************
1010   main program
1011 ****************************************************************************/
1012  int main(int argc, const char *argv[])
1013 {
1014         char *share;
1015         int opt;
1016         enum acl_mode mode = SMB_ACL_SET;
1017         static char *the_acl = NULL;
1018         enum chown_mode change_mode = REQUEST_NONE;
1019         int result;
1020         char *path;
1021         char *filename = NULL;
1022         poptContext pc;
1023         struct poptOption long_options[] = {
1024                 POPT_AUTOHELP
1025                 { "delete", 'D', POPT_ARG_STRING, NULL, 'D', "Delete an acl", "ACL" },
1026                 { "modify", 'M', POPT_ARG_STRING, NULL, 'M', "Modify an acl", "ACL" },
1027                 { "add", 'a', POPT_ARG_STRING, NULL, 'a', "Add an acl", "ACL" },
1028                 { "set", 'S', POPT_ARG_STRING, NULL, 'S', "Set acls", "ACLS" },
1029                 { "chown", 'C', POPT_ARG_STRING, NULL, 'C', "Change ownership of a file", "USERNAME" },
1030                 { "chgrp", 'G', POPT_ARG_STRING, NULL, 'G', "Change group ownership of a file", "GROUPNAME" },
1031                 { "numeric", 0, POPT_ARG_NONE, &numeric, 1, "Don't resolve sids or masks to names" },
1032                 { "test-args", 't', POPT_ARG_NONE, &test_args, 1, "Test arguments"},
1033                 POPT_COMMON_SAMBA
1034                 POPT_COMMON_CONNECTION
1035                 POPT_COMMON_CREDENTIALS
1036                 POPT_TABLEEND
1037         };
1038
1039         struct cli_state *cli;
1040         TALLOC_CTX *frame = talloc_stackframe();
1041         const char *owner_username = "";
1042         char *server;
1043
1044         load_case_tables();
1045
1046
1047         /* set default debug level to 1 regardless of what smb.conf sets */
1048         setup_logging( "smbcacls", True );
1049         DEBUGLEVEL_CLASS[DBGC_ALL] = 1;
1050         dbf = x_stderr;
1051         x_setbuf( x_stderr, NULL );
1052
1053         setlinebuf(stdout);
1054
1055         lp_load(get_dyn_CONFIGFILE(),True,False,False,True);
1056         load_interfaces();
1057
1058         pc = poptGetContext("smbcacls", argc, argv, long_options, 0);
1059
1060         poptSetOtherOptionHelp(pc, "//server1/share1 filename\nACLs look like: "
1061                 "'ACL:user:[ALLOWED|DENIED]/flags/permissions'");
1062
1063         while ((opt = poptGetNextOpt(pc)) != -1) {
1064                 switch (opt) {
1065                 case 'S':
1066                         the_acl = smb_xstrdup(poptGetOptArg(pc));
1067                         mode = SMB_ACL_SET;
1068                         break;
1069
1070                 case 'D':
1071                         the_acl = smb_xstrdup(poptGetOptArg(pc));
1072                         mode = SMB_ACL_DELETE;
1073                         break;
1074
1075                 case 'M':
1076                         the_acl = smb_xstrdup(poptGetOptArg(pc));
1077                         mode = SMB_ACL_MODIFY;
1078                         break;
1079
1080                 case 'a':
1081                         the_acl = smb_xstrdup(poptGetOptArg(pc));
1082                         mode = SMB_ACL_ADD;
1083                         break;
1084
1085                 case 'C':
1086                         owner_username = poptGetOptArg(pc);
1087                         change_mode = REQUEST_CHOWN;
1088                         break;
1089
1090                 case 'G':
1091                         owner_username = poptGetOptArg(pc);
1092                         change_mode = REQUEST_CHGRP;
1093                         break;
1094                 }
1095         }
1096
1097         /* Make connection to server */
1098         if(!poptPeekArg(pc)) {
1099                 poptPrintUsage(pc, stderr, 0);
1100                 return -1;
1101         }
1102
1103         path = talloc_strdup(frame, poptGetArg(pc));
1104         if (!path) {
1105                 return -1;
1106         }
1107
1108         if(!poptPeekArg(pc)) {
1109                 poptPrintUsage(pc, stderr, 0);
1110                 return -1;
1111         }
1112
1113         filename = talloc_strdup(frame, poptGetArg(pc));
1114         if (!filename) {
1115                 return -1;
1116         }
1117
1118         string_replace(path,'/','\\');
1119
1120         server = talloc_strdup(frame, path+2);
1121         if (!server) {
1122                 return -1;
1123         }
1124         share = strchr_m(server,'\\');
1125         if (!share) {
1126                 printf("Invalid argument: %s\n", share);
1127                 return -1;
1128         }
1129
1130         *share = 0;
1131         share++;
1132
1133         if (!test_args) {
1134                 cli = connect_one(server, share);
1135                 if (!cli) {
1136                         exit(EXIT_FAILED);
1137                 }
1138         } else {
1139                 exit(0);
1140         }
1141
1142         string_replace(filename, '/', '\\');
1143         if (filename[0] != '\\') {
1144                 filename = talloc_asprintf(frame,
1145                                 "\\%s",
1146                                 filename);
1147                 if (!filename) {
1148                         return -1;
1149                 }
1150         }
1151
1152         /* Perform requested action */
1153
1154         if (change_mode != REQUEST_NONE) {
1155                 result = owner_set(cli, change_mode, filename, owner_username);
1156         } else if (the_acl) {
1157                 result = cacl_set(cli, filename, the_acl, mode);
1158         } else {
1159                 result = cacl_dump(cli, filename);
1160         }
1161
1162         TALLOC_FREE(frame);
1163
1164         return result;
1165 }