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 #include "../librpc/gen_ndr/ndr_lsa.h"
  26
  27 extern bool AllowDebugChange;
  28
  29 static int test_args;
  30
  31 #define CREATE_ACCESS_READ READ_CONTROL_ACCESS
  32
  33 /* numeric is set when the user wants numeric SIDs and ACEs rather
  34    than going via LSA calls to resolve them */
  35 static int numeric;
  36
  37 static int sddl;
  38
  39 enum acl_mode {SMB_ACL_SET, SMB_ACL_DELETE, SMB_ACL_MODIFY, SMB_ACL_ADD };
  40 enum chown_mode {REQUEST_NONE, REQUEST_CHOWN, REQUEST_CHGRP};
  41 enum exit_values {EXIT_OK, EXIT_FAILED, EXIT_PARSE_ERROR};
  42
  43 struct perm_value {
  44         const char *perm;
  45         uint32 mask;
  46 };
  47
  48 /* These values discovered by inspection */
  49
  50 static const struct perm_value special_values[] = {
  51         { "R", 0x00120089 },
  52         { "W", 0x00120116 },
  53         { "X", 0x001200a0 },
  54         { "D", 0x00010000 },
  55         { "P", 0x00040000 },
  56         { "O", 0x00080000 },
  57         { NULL, 0 },
  58 };
  59
  60 static const struct perm_value standard_values[] = {
  61         { "READ",   0x001200a9 },
  62         { "CHANGE", 0x001301bf },
  63         { "FULL",   0x001f01ff },
  64         { NULL, 0 },
  65 };
  66
  67 /* Open cli connection and policy handle */
  68
  69 static NTSTATUS cli_lsa_lookup_sid(struct cli_state *cli,
  70                                    const DOM_SID *sid,
  71                                    TALLOC_CTX *mem_ctx,
  72                                    enum lsa_SidType *type,
  73                                    char **domain, char **name)
  74 {
  75         uint16 orig_cnum = cli->cnum;
  76         struct rpc_pipe_client *p = NULL;
  77         struct policy_handle handle;
  78         NTSTATUS status;
  79         TALLOC_CTX *frame = talloc_stackframe();
  80         enum lsa_SidType *types;
  81         char **domains;
  82         char **names;
  83
  84         status = cli_tcon_andx(cli, "IPC$", "?????", "", 0);
  85         if (!NT_STATUS_IS_OK(status)) {
  86                 return status;
  87         }
  88
  89         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
  90                                           &p);
  91         if (!NT_STATUS_IS_OK(status)) {
  92                 goto fail;
  93         }
  94
  95         status = rpccli_lsa_open_policy(p, talloc_tos(), True,
  96                                         GENERIC_EXECUTE_ACCESS, &handle);
  97         if (!NT_STATUS_IS_OK(status)) {
  98                 goto fail;
  99         }
 100
 101         status = rpccli_lsa_lookup_sids(p, talloc_tos(), &handle, 1, sid,
 102                                         &domains, &names, &types);
 103         if (!NT_STATUS_IS_OK(status)) {
 104                 goto fail;
 105         }
 106
 107         *type = types[0];
 108         *domain = talloc_move(mem_ctx, &domains[0]);
 109         *name = talloc_move(mem_ctx, &names[0]);
 110
 111         status = NT_STATUS_OK;
 112  fail:
 113         TALLOC_FREE(p);
 114         cli_tdis(cli);
 115         cli->cnum = orig_cnum;
 116         TALLOC_FREE(frame);
 117         return status;
 118 }
 119
 120 static NTSTATUS cli_lsa_lookup_name(struct cli_state *cli,
 121                                     const char *name,
 122                                     enum lsa_SidType *type,
 123                                     DOM_SID *sid)
 124 {
 125         uint16 orig_cnum = cli->cnum;
 126         struct rpc_pipe_client *p;
 127         struct policy_handle handle;
 128         NTSTATUS status;
 129         TALLOC_CTX *frame = talloc_stackframe();
 130         DOM_SID *sids;
 131         enum lsa_SidType *types;
 132
 133         status = cli_tcon_andx(cli, "IPC$", "?????", "", 0);
 134         if (!NT_STATUS_IS_OK(status)) {
 135                 return status;
 136         }
 137
 138         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
 139                                           &p);
 140         if (!NT_STATUS_IS_OK(status)) {
 141                 goto fail;
 142         }
 143
 144         status = rpccli_lsa_open_policy(p, talloc_tos(), True,
 145                                         GENERIC_EXECUTE_ACCESS, &handle);
 146         if (!NT_STATUS_IS_OK(status)) {
 147                 goto fail;
 148         }
 149
 150         status = rpccli_lsa_lookup_names(p, talloc_tos(), &handle, 1, &name,
 151                                          NULL, 1, &sids, &types);
 152         if (!NT_STATUS_IS_OK(status)) {
 153                 goto fail;
 154         }
 155
 156         *type = types[0];
 157         *sid = sids[0];
 158
 159         status = NT_STATUS_OK;
 160  fail:
 161         TALLOC_FREE(p);
 162         cli_tdis(cli);
 163         cli->cnum = orig_cnum;
 164         TALLOC_FREE(frame);
 165         return status;
 166 }
 167
 168 /* convert a SID to a string, either numeric or username/group */
 169 static void SidToString(struct cli_state *cli, fstring str, const DOM_SID *sid)
 170 {
 171         char *domain = NULL;
 172         char *name = NULL;
 173         enum lsa_SidType type;
 174         NTSTATUS status;
 175
 176         sid_to_fstring(str, sid);
 177
 178         if (numeric) {
 179                 return;
 180         }
 181
 182         status = cli_lsa_lookup_sid(cli, sid, talloc_tos(), &type,
 183                                     &domain, &name);
 184
 185         if (!NT_STATUS_IS_OK(status)) {
 186                 return;
 187         }
 188
 189         if (*domain) {
 190                 slprintf(str, sizeof(fstring) - 1, "%s%s%s",
 191                         domain, lp_winbind_separator(), name);
 192         } else {
 193                 fstrcpy(str, name);
 194         }
 195 }
 196
 197 /* convert a string to a SID, either numeric or username/group */
 198 static bool StringToSid(struct cli_state *cli, DOM_SID *sid, const char *str)
 199 {
 200         enum lsa_SidType type;
 201
 202         if (strncmp(str, "S-", 2) == 0) {
 203                 return string_to_sid(sid, str);
 204         }
 205
 206         return NT_STATUS_IS_OK(cli_lsa_lookup_name(cli, str, &type, sid));
 207 }
 208
 209 static void print_ace_flags(FILE *f, uint8_t flags)
 210 {
 211         char *str = talloc_strdup(NULL, "");
 212
 213         if (!str) {
 214                 goto out;
 215         }
 216
 217         if (flags & SEC_ACE_FLAG_OBJECT_INHERIT) {
 218                 str = talloc_asprintf(str, "%s%s",
 219                                 str, "OI|");
 220                 if (!str) {
 221                         goto out;
 222                 }
 223         }
 224         if (flags & SEC_ACE_FLAG_CONTAINER_INHERIT) {
 225                 str = talloc_asprintf(str, "%s%s",
 226                                 str, "CI|");
 227                 if (!str) {
 228                         goto out;
 229                 }
 230         }
 231         if (flags & SEC_ACE_FLAG_NO_PROPAGATE_INHERIT) {
 232                 str = talloc_asprintf(str, "%s%s",
 233                                 str, "NP|");
 234                 if (!str) {
 235                         goto out;
 236                 }
 237         }
 238         if (flags & SEC_ACE_FLAG_INHERIT_ONLY) {
 239                 str = talloc_asprintf(str, "%s%s",
 240                                 str, "IO|");
 241                 if (!str) {
 242                         goto out;
 243                 }
 244         }
 245         if (flags & SEC_ACE_FLAG_INHERITED_ACE) {
 246                 str = talloc_asprintf(str, "%s%s",
 247                                 str, "I|");
 248                 if (!str) {
 249                         goto out;
 250                 }
 251         }
 252         /* Ignore define SEC_ACE_FLAG_SUCCESSFUL_ACCESS ( 0x40 )
 253            and SEC_ACE_FLAG_FAILED_ACCESS ( 0x80 ) as they're
 254            audit ace flags. */
 255
 256         if (str[strlen(str)-1] == '|') {
 257                 str[strlen(str)-1] = '\0';
 258                 fprintf(f, "/%s/", str);
 259         } else {
 260                 fprintf(f, "/0x%x/", flags);
 261         }
 262         TALLOC_FREE(str);
 263         return;
 264
 265   out:
 266         fprintf(f, "/0x%x/", flags);
 267 }
 268
 269 /* print an ACE on a FILE, using either numeric or ascii representation */
 270 static void print_ace(struct cli_state *cli, FILE *f, SEC_ACE *ace)
 271 {
 272         const struct perm_value *v;
 273         fstring sidstr;
 274         int do_print = 0;
 275         uint32 got_mask;
 276
 277         SidToString(cli, sidstr, &ace->trustee);
 278
 279         fprintf(f, "%s:", sidstr);
 280
 281         if (numeric) {
 282                 fprintf(f, "%d/0x%x/0x%08x",
 283                         ace->type, ace->flags, ace->access_mask);
 284                 return;
 285         }
 286
 287         /* Ace type */
 288
 289         if (ace->type == SEC_ACE_TYPE_ACCESS_ALLOWED) {
 290                 fprintf(f, "ALLOWED");
 291         } else if (ace->type == SEC_ACE_TYPE_ACCESS_DENIED) {
 292                 fprintf(f, "DENIED");
 293         } else {
 294                 fprintf(f, "%d", ace->type);
 295         }
 296
 297         print_ace_flags(f, ace->flags);
 298
 299         /* Standard permissions */
 300
 301         for (v = standard_values; v->perm; v++) {
 302                 if (ace->access_mask == v->mask) {
 303                         fprintf(f, "%s", v->perm);
 304                         return;
 305                 }
 306         }
 307
 308         /* Special permissions.  Print out a hex value if we have
 309            leftover bits in the mask. */
 310
 311         got_mask = ace->access_mask;
 312
 313  again:
 314         for (v = special_values; v->perm; v++) {
 315                 if ((ace->access_mask & v->mask) == v->mask) {
 316                         if (do_print) {
 317                                 fprintf(f, "%s", v->perm);
 318                         }
 319                         got_mask &= ~v->mask;
 320                 }
 321         }
 322
 323         if (!do_print) {
 324                 if (got_mask != 0) {
 325                         fprintf(f, "0x%08x", ace->access_mask);
 326                 } else {
 327                         do_print = 1;
 328                         goto again;
 329                 }
 330         }
 331 }
 332
 333 static bool parse_ace_flags(const char *str, unsigned int *pflags)
 334 {
 335         const char *p = str;
 336         *pflags = 0;
 337
 338         while (*p) {
 339                 if (strnequal(p, "OI", 2)) {
 340                         *pflags |= SEC_ACE_FLAG_OBJECT_INHERIT;
 341                         p += 2;
 342                 } else if (strnequal(p, "CI", 2)) {
 343                         *pflags |= SEC_ACE_FLAG_CONTAINER_INHERIT;
 344                         p += 2;
 345                 } else if (strnequal(p, "NP", 2)) {
 346                         *pflags |= SEC_ACE_FLAG_NO_PROPAGATE_INHERIT;
 347                         p += 2;
 348                 } else if (strnequal(p, "IO", 2)) {
 349                         *pflags |= SEC_ACE_FLAG_INHERIT_ONLY;
 350                         p += 2;
 351                 } else if (*p == 'I') {
 352                         *pflags |= SEC_ACE_FLAG_INHERITED_ACE;
 353                         p += 1;
 354                 } else if (*p) {
 355                         return false;
 356                 }
 357
 358                 if (*p != '|' && *p != '\0') {
 359                         return false;
 360                 }
 361         }
 362         return true;
 363 }
 364
 365 /* parse an ACE in the same format as print_ace() */
 366 static bool parse_ace(struct cli_state *cli, SEC_ACE *ace,
 367                       const char *orig_str)
 368 {
 369         char *p;
 370         const char *cp;
 371         char *tok;
 372         unsigned int atype = 0;
 373         unsigned int aflags = 0;
 374         unsigned int amask = 0;
 375         DOM_SID sid;
 376         uint32_t mask;
 377         const struct perm_value *v;
 378         char *str = SMB_STRDUP(orig_str);
 379         TALLOC_CTX *frame = talloc_stackframe();
 380
 381         if (!str) {
 382                 TALLOC_FREE(frame);
 383                 return False;
 384         }
 385
 386         ZERO_STRUCTP(ace);
 387         p = strchr_m(str,':');
 388         if (!p) {
 389                 printf("ACE '%s': missing ':'.\n", orig_str);
 390                 SAFE_FREE(str);
 391                 TALLOC_FREE(frame);
 392                 return False;
 393         }
 394         *p = '\0';
 395         p++;
 396         /* Try to parse numeric form */
 397
 398         if (sscanf(p, "%i/%i/%i", &atype, &aflags, &amask) == 3 &&
 399             StringToSid(cli, &sid, str)) {
 400                 goto done;
 401         }
 402
 403         /* Try to parse text form */
 404
 405         if (!StringToSid(cli, &sid, str)) {
 406                 printf("ACE '%s': failed to convert '%s' to SID\n",
 407                         orig_str, str);
 408                 SAFE_FREE(str);
 409                 TALLOC_FREE(frame);
 410                 return False;
 411         }
 412
 413         cp = p;
 414         if (!next_token_talloc(frame, &cp, &tok, "/")) {
 415                 printf("ACE '%s': failed to find '/' character.\n",
 416                         orig_str);
 417                 SAFE_FREE(str);
 418                 TALLOC_FREE(frame);
 419                 return False;
 420         }
 421
 422         if (strncmp(tok, "ALLOWED", strlen("ALLOWED")) == 0) {
 423                 atype = SEC_ACE_TYPE_ACCESS_ALLOWED;
 424         } else if (strncmp(tok, "DENIED", strlen("DENIED")) == 0) {
 425                 atype = SEC_ACE_TYPE_ACCESS_DENIED;
 426         } else {
 427                 printf("ACE '%s': missing 'ALLOWED' or 'DENIED' entry at '%s'\n",
 428                         orig_str, tok);
 429                 SAFE_FREE(str);
 430                 TALLOC_FREE(frame);
 431                 return False;
 432         }
 433
 434         /* Only numeric form accepted for flags at present */
 435
 436         if (!next_token_talloc(frame, &cp, &tok, "/")) {
 437                 printf("ACE '%s': bad flags entry at '%s'\n",
 438                         orig_str, tok);
 439                 SAFE_FREE(str);
 440                 TALLOC_FREE(frame);
 441                 return False;
 442         }
 443
 444         if (tok[0] < '0' || tok[0] > '9') {
 445                 if (!parse_ace_flags(tok, &aflags)) {
 446                         printf("ACE '%s': bad named flags entry at '%s'\n",
 447                                 orig_str, tok);
 448                         SAFE_FREE(str);
 449                         TALLOC_FREE(frame);
 450                         return False;
 451                 }
 452         } else if (strnequal(tok, "0x", 2)) {
 453                 if (!sscanf(tok, "%x", &aflags)) {
 454                         printf("ACE '%s': bad hex flags entry at '%s'\n",
 455                                 orig_str, tok);
 456                         SAFE_FREE(str);
 457                         TALLOC_FREE(frame);
 458                         return False;
 459                 }
 460         } else {
 461                 if (!sscanf(tok, "%i", &aflags)) {
 462                         printf("ACE '%s': bad integer flags entry at '%s'\n",
 463                                 orig_str, tok);
 464                         SAFE_FREE(str);
 465                         TALLOC_FREE(frame);
 466                         return False;
 467                 }
 468         }
 469
 470         if (!next_token_talloc(frame, &cp, &tok, "/")) {
 471                 printf("ACE '%s': missing / at '%s'\n",
 472                         orig_str, tok);
 473                 SAFE_FREE(str);
 474                 TALLOC_FREE(frame);
 475                 return False;
 476         }
 477
 478         if (strncmp(tok, "0x", 2) == 0) {
 479                 if (sscanf(tok, "%i", &amask) != 1) {
 480                         printf("ACE '%s': bad hex number at '%s'\n",
 481                                 orig_str, tok);
 482                         SAFE_FREE(str);
 483                         TALLOC_FREE(frame);
 484                         return False;
 485                 }
 486                 goto done;
 487         }
 488
 489         for (v = standard_values; v->perm; v++) {
 490                 if (strcmp(tok, v->perm) == 0) {
 491                         amask = v->mask;
 492                         goto done;
 493                 }
 494         }
 495
 496         p = tok;
 497
 498         while(*p) {
 499                 bool found = False;
 500
 501                 for (v = special_values; v->perm; v++) {
 502                         if (v->perm[0] == *p) {
 503                                 amask |= v->mask;
 504                                 found = True;
 505                         }
 506                 }
 507
 508                 if (!found) {
 509                         printf("ACE '%s': bad permission value at '%s'\n",
 510                                 orig_str, p);
 511                         SAFE_FREE(str);
 512                         TALLOC_FREE(frame);
 513                         return False;
 514                 }
 515                 p++;
 516         }
 517
 518         if (*p) {
 519                 TALLOC_FREE(frame);
 520                 SAFE_FREE(str);
 521                 return False;
 522         }
 523
 524  done:
 525         mask = amask;
 526         init_sec_ace(ace, &sid, atype, mask, aflags);
 527         TALLOC_FREE(frame);
 528         SAFE_FREE(str);
 529         return True;
 530 }
 531
 532 /* add an ACE to a list of ACEs in a SEC_ACL */
 533 static bool add_ace(SEC_ACL **the_acl, SEC_ACE *ace)
 534 {
 535         SEC_ACL *new_ace;
 536         SEC_ACE *aces;
 537         if (! *the_acl) {
 538                 return (((*the_acl) = make_sec_acl(talloc_tos(), 3, 1, ace))
 539                         != NULL);
 540         }
 541
 542         if (!(aces = SMB_CALLOC_ARRAY(SEC_ACE, 1+(*the_acl)->num_aces))) {
 543                 return False;
 544         }
 545         memcpy(aces, (*the_acl)->aces, (*the_acl)->num_aces * sizeof(SEC_ACE));
 546         memcpy(aces+(*the_acl)->num_aces, ace, sizeof(SEC_ACE));
 547         new_ace = make_sec_acl(talloc_tos(),(*the_acl)->revision,1+(*the_acl)->num_aces, aces);
 548         SAFE_FREE(aces);
 549         (*the_acl) = new_ace;
 550         return True;
 551 }
 552
 553 /* parse a ascii version of a security descriptor */
 554 static SEC_DESC *sec_desc_parse(TALLOC_CTX *ctx, struct cli_state *cli, char *str)
 555 {
 556         const char *p = str;
 557         char *tok;
 558         SEC_DESC *ret = NULL;
 559         size_t sd_size;
 560         DOM_SID *grp_sid=NULL, *owner_sid=NULL;
 561         SEC_ACL *dacl=NULL;
 562         int revision=1;
 563
 564         while (next_token_talloc(ctx, &p, &tok, "\t,\r\n")) {
 565                 if (strncmp(tok,"REVISION:", 9) == 0) {
 566                         revision = strtol(tok+9, NULL, 16);
 567                         continue;
 568                 }
 569
 570                 if (strncmp(tok,"OWNER:", 6) == 0) {
 571                         if (owner_sid) {
 572                                 printf("Only specify owner once\n");
 573                                 goto done;
 574                         }
 575                         owner_sid = SMB_CALLOC_ARRAY(DOM_SID, 1);
 576                         if (!owner_sid ||
 577                             !StringToSid(cli, owner_sid, tok+6)) {
 578                                 printf("Failed to parse owner sid\n");
 579                                 goto done;
 580                         }
 581                         continue;
 582                 }
 583
 584                 if (strncmp(tok,"GROUP:", 6) == 0) {
 585                         if (grp_sid) {
 586                                 printf("Only specify group once\n");
 587                                 goto done;
 588                         }
 589                         grp_sid = SMB_CALLOC_ARRAY(DOM_SID, 1);
 590                         if (!grp_sid ||
 591                             !StringToSid(cli, grp_sid, tok+6)) {
 592                                 printf("Failed to parse group sid\n");
 593                                 goto done;
 594                         }
 595                         continue;
 596                 }
 597
 598                 if (strncmp(tok,"ACL:", 4) == 0) {
 599                         SEC_ACE ace;
 600                         if (!parse_ace(cli, &ace, tok+4)) {
 601                                 goto done;
 602                         }
 603                         if(!add_ace(&dacl, &ace)) {
 604                                 printf("Failed to add ACL %s\n", tok);
 605                                 goto done;
 606                         }
 607                         continue;
 608                 }
 609
 610                 printf("Failed to parse token '%s' in security descriptor,\n", tok);
 611                 goto done;
 612         }
 613
 614         ret = make_sec_desc(ctx,revision, SEC_DESC_SELF_RELATIVE, owner_sid, grp_sid,
 615                             NULL, dacl, &sd_size);
 616
 617   done:
 618         SAFE_FREE(grp_sid);
 619         SAFE_FREE(owner_sid);
 620
 621         return ret;
 622 }
 623
 624
 625 /* print a ascii version of a security descriptor on a FILE handle */
 626 static void sec_desc_print(struct cli_state *cli, FILE *f, SEC_DESC *sd)
 627 {
 628         fstring sidstr;
 629         uint32 i;
 630
 631         fprintf(f, "REVISION:%d\n", sd->revision);
 632         fprintf(f, "CONTROL:0x%x\n", sd->type);
 633
 634         /* Print owner and group sid */
 635
 636         if (sd->owner_sid) {
 637                 SidToString(cli, sidstr, sd->owner_sid);
 638         } else {
 639                 fstrcpy(sidstr, "");
 640         }
 641
 642         fprintf(f, "OWNER:%s\n", sidstr);
 643
 644         if (sd->group_sid) {
 645                 SidToString(cli, sidstr, sd->group_sid);
 646         } else {
 647                 fstrcpy(sidstr, "");
 648         }
 649
 650         fprintf(f, "GROUP:%s\n", sidstr);
 651
 652         /* Print aces */
 653         for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
 654                 SEC_ACE *ace = &sd->dacl->aces[i];
 655                 fprintf(f, "ACL:");
 656                 print_ace(cli, f, ace);
 657                 fprintf(f, "\n");
 658         }
 659
 660 }
 661
 662 /*****************************************************
 663 get sec desc for filename
 664 *******************************************************/
 665 static SEC_DESC *get_secdesc(struct cli_state *cli, const char *filename)
 666 {
 667         uint16_t fnum = (uint16_t)-1;
 668         SEC_DESC *sd;
 669
 670         /* The desired access below is the only one I could find that works
 671            with NT4, W2KP and Samba */
 672
 673         if (!NT_STATUS_IS_OK(cli_ntcreate(cli, filename, 0, CREATE_ACCESS_READ,
 674                                           0, FILE_SHARE_READ|FILE_SHARE_WRITE,
 675                                           FILE_OPEN, 0x0, 0x0, &fnum))) {
 676                 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
 677                 return NULL;
 678         }
 679
 680         sd = cli_query_secdesc(cli, fnum, talloc_tos());
 681
 682         cli_close(cli, fnum);
 683
 684         if (!sd) {
 685                 printf("Failed to get security descriptor\n");
 686                 return NULL;
 687         }
 688         return sd;
 689 }
 690
 691 /*****************************************************
 692 dump the acls for a file
 693 *******************************************************/
 694 static int cacl_dump(struct cli_state *cli, const char *filename)
 695 {
 696         int result = EXIT_FAILED;
 697         SEC_DESC *sd;
 698
 699         if (test_args)
 700                 return EXIT_OK;
 701
 702         sd = get_secdesc(cli, filename);
 703
 704         if (sd) {
 705                 if (sddl) {
 706                         printf("%s\n", sddl_encode(talloc_tos(), sd,
 707                                            get_global_sam_sid()));
 708                 } else {
 709                         sec_desc_print(cli, stdout, sd);
 710                 }
 711                 result = EXIT_OK;
 712         }
 713
 714         return result;
 715 }
 716
 717 /*****************************************************
 718 Change the ownership or group ownership of a file. Just
 719 because the NT docs say this can't be done :-). JRA.
 720 *******************************************************/
 721
 722 static int owner_set(struct cli_state *cli, enum chown_mode change_mode,
 723                         const char *filename, const char *new_username)
 724 {
 725         uint16_t fnum;
 726         DOM_SID sid;
 727         SEC_DESC *sd, *old;
 728         size_t sd_size;
 729
 730         if (!StringToSid(cli, &sid, new_username))
 731                 return EXIT_PARSE_ERROR;
 732
 733         old = get_secdesc(cli, filename);
 734
 735         if (!old) {
 736                 return EXIT_FAILED;
 737         }
 738
 739         sd = make_sec_desc(talloc_tos(),old->revision, old->type,
 740                                 (change_mode == REQUEST_CHOWN) ? &sid : NULL,
 741                                 (change_mode == REQUEST_CHGRP) ? &sid : NULL,
 742                            NULL, NULL, &sd_size);
 743
 744         if (!NT_STATUS_IS_OK(cli_ntcreate(cli, filename, 0, WRITE_OWNER_ACCESS, 0,
 745                         FILE_SHARE_READ|FILE_SHARE_WRITE, FILE_OPEN, 0x0, 0x0, &fnum))) {
 746                 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
 747                 return EXIT_FAILED;
 748         }
 749
 750         if (!cli_set_secdesc(cli, fnum, sd)) {
 751                 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
 752                 cli_close(cli, fnum);
 753                 return EXIT_FAILED;
 754         }
 755
 756         cli_close(cli, fnum);
 757
 758         return EXIT_OK;
 759 }
 760
 761
 762 /* The MSDN is contradictory over the ordering of ACE entries in an
 763    ACL.  However NT4 gives a "The information may have been modified
 764    by a computer running Windows NT 5.0" if denied ACEs do not appear
 765    before allowed ACEs. At
 766    http://technet.microsoft.com/en-us/library/cc781716.aspx the
 767    canonical order is specified as "Explicit Deny, Explicit Allow,
 768    Inherited ACEs unchanged" */
 769
 770 static int ace_compare(SEC_ACE *ace1, SEC_ACE *ace2)
 771 {
 772         if (sec_ace_equal(ace1, ace2))
 773                 return 0;
 774
 775         if ((ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
 776                         !(ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
 777                 return 1;
 778         if (!(ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
 779                         (ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
 780                 return -1;
 781         if ((ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
 782                         (ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
 783                 return ace1 - ace2;
 784
 785         if (ace1->type != ace2->type)
 786                 return ace2->type - ace1->type;
 787
 788         if (sid_compare(&ace1->trustee, &ace2->trustee))
 789                 return sid_compare(&ace1->trustee, &ace2->trustee);
 790
 791         if (ace1->flags != ace2->flags)
 792                 return ace1->flags - ace2->flags;
 793
 794         if (ace1->access_mask != ace2->access_mask)
 795                 return ace1->access_mask - ace2->access_mask;
 796
 797         if (ace1->size != ace2->size)
 798                 return ace1->size - ace2->size;
 799
 800         return memcmp(ace1, ace2, sizeof(SEC_ACE));
 801 }
 802
 803 static void sort_acl(SEC_ACL *the_acl)
 804 {
 805         uint32 i;
 806         if (!the_acl) return;
 807
 808         TYPESAFE_QSORT(the_acl->aces, the_acl->num_aces, ace_compare);
 809
 810         for (i=1;i<the_acl->num_aces;) {
 811                 if (sec_ace_equal(&the_acl->aces[i-1], &the_acl->aces[i])) {
 812                         int j;
 813                         for (j=i; j<the_acl->num_aces-1; j++) {
 814                                 the_acl->aces[j] = the_acl->aces[j+1];
 815                         }
 816                         the_acl->num_aces--;
 817                 } else {
 818                         i++;
 819                 }
 820         }
 821 }
 822
 823 /*****************************************************
 824 set the ACLs on a file given an ascii description
 825 *******************************************************/
 826
 827 static int cacl_set(struct cli_state *cli, const char *filename,
 828                     char *the_acl, enum acl_mode mode)
 829 {
 830         uint16_t fnum;
 831         SEC_DESC *sd, *old;
 832         uint32 i, j;
 833         size_t sd_size;
 834         int result = EXIT_OK;
 835
 836         if (sddl) {
 837                 sd = sddl_decode(talloc_tos(), the_acl, get_global_sam_sid());
 838         } else {
 839                 sd = sec_desc_parse(talloc_tos(), cli, the_acl);
 840         }
 841
 842         if (!sd) return EXIT_PARSE_ERROR;
 843         if (test_args) return EXIT_OK;
 844
 845         old = get_secdesc(cli, filename);
 846
 847         if (!old) {
 848                 return EXIT_FAILED;
 849         }
 850
 851         /* the logic here is rather more complex than I would like */
 852         switch (mode) {
 853         case SMB_ACL_DELETE:
 854                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
 855                         bool found = False;
 856
 857                         for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
 858                                 if (sec_ace_equal(&sd->dacl->aces[i],
 859                                                   &old->dacl->aces[j])) {
 860                                         uint32 k;
 861                                         for (k=j; k<old->dacl->num_aces-1;k++) {
 862                                                 old->dacl->aces[k] = old->dacl->aces[k+1];
 863                                         }
 864                                         old->dacl->num_aces--;
 865                                         found = True;
 866                                         break;
 867                                 }
 868                         }
 869
 870                         if (!found) {
 871                                 printf("ACL for ACE:");
 872                                 print_ace(cli, stdout, &sd->dacl->aces[i]);
 873                                 printf(" not found\n");
 874                         }
 875                 }
 876                 break;
 877
 878         case SMB_ACL_MODIFY:
 879                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
 880                         bool found = False;
 881
 882                         for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
 883                                 if (sid_equal(&sd->dacl->aces[i].trustee,
 884                                               &old->dacl->aces[j].trustee)) {
 885                                         old->dacl->aces[j] = sd->dacl->aces[i];
 886                                         found = True;
 887                                 }
 888                         }
 889
 890                         if (!found) {
 891                                 fstring str;
 892
 893                                 SidToString(cli, str,
 894                                             &sd->dacl->aces[i].trustee);
 895                                 printf("ACL for SID %s not found\n", str);
 896                         }
 897                 }
 898
 899                 if (sd->owner_sid) {
 900                         old->owner_sid = sd->owner_sid;
 901                 }
 902
 903                 if (sd->group_sid) {
 904                         old->group_sid = sd->group_sid;
 905                 }
 906
 907                 break;
 908
 909         case SMB_ACL_ADD:
 910                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
 911                         add_ace(&old->dacl, &sd->dacl->aces[i]);
 912                 }
 913                 break;
 914
 915         case SMB_ACL_SET:
 916                 old = sd;
 917                 break;
 918         }
 919
 920         /* Denied ACE entries must come before allowed ones */
 921         sort_acl(old->dacl);
 922
 923         /* Create new security descriptor and set it */
 924
 925         /* We used to just have "WRITE_DAC_ACCESS" without WRITE_OWNER.
 926            But if we're sending an owner, even if it's the same as the one
 927            that already exists then W2K3 insists we open with WRITE_OWNER access.
 928            I need to check that setting a SD with no owner set works against WNT
 929            and W2K. JRA.
 930         */
 931
 932         sd = make_sec_desc(talloc_tos(),old->revision, old->type,
 933                            old->owner_sid, old->group_sid,
 934                            NULL, old->dacl, &sd_size);
 935
 936         if (!NT_STATUS_IS_OK(cli_ntcreate(cli, filename, 0, WRITE_DAC_ACCESS|WRITE_OWNER_ACCESS, 0,
 937                         FILE_SHARE_READ|FILE_SHARE_WRITE, FILE_OPEN, 0x0, 0x0, &fnum))) {
 938                 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
 939                 return EXIT_FAILED;
 940         }
 941
 942         if (!cli_set_secdesc(cli, fnum, sd)) {
 943                 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
 944                 result = EXIT_FAILED;
 945         }
 946
 947         /* Clean up */
 948
 949         cli_close(cli, fnum);
 950
 951         return result;
 952 }
 953
 954
 955 /*****************************************************
 956  Return a connection to a server.
 957 *******************************************************/
 958 static struct cli_state *connect_one(struct user_auth_info *auth_info,
 959                                      const char *server, const char *share)
 960 {
 961         struct cli_state *c = NULL;
 962         struct sockaddr_storage ss;
 963         NTSTATUS nt_status;
 964         uint32_t flags = 0;
 965
 966         zero_sockaddr(&ss);
 967
 968         if (get_cmdline_auth_info_use_kerberos(auth_info)) {
 969                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS |
 970                          CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
 971         }
 972
 973         if (get_cmdline_auth_info_use_machine_account(auth_info) &&
 974             !set_cmdline_auth_info_machine_account_creds(auth_info)) {
 975                 return NULL;
 976         }
 977
 978         set_cmdline_auth_info_getpass(auth_info);
 979
 980         nt_status = cli_full_connection(&c, global_myname(), server,
 981                                 &ss, 0,
 982                                 share, "?????",
 983                                 get_cmdline_auth_info_username(auth_info),
 984                                 lp_workgroup(),
 985                                 get_cmdline_auth_info_password(auth_info),
 986                                 flags,
 987                                 get_cmdline_auth_info_signing_state(auth_info),
 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(auth_info)) {
 995                 nt_status = cli_cm_force_encryption(c,
 996                                         get_cmdline_auth_info_username(auth_info),
 997                                         get_cmdline_auth_info_password(auth_info),
 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                 { "sddl", 0, POPT_ARG_NONE, &sddl, 1, "Output and input acls in sddl format" },
1033                 { "test-args", 't', POPT_ARG_NONE, &test_args, 1, "Test arguments"},
1034                 POPT_COMMON_SAMBA
1035                 POPT_COMMON_CONNECTION
1036                 POPT_COMMON_CREDENTIALS
1037                 POPT_TABLEEND
1038         };
1039
1040         struct cli_state *cli;
1041         TALLOC_CTX *frame = talloc_stackframe();
1042         const char *owner_username = "";
1043         char *server;
1044         struct user_auth_info *auth_info;
1045
1046         load_case_tables();
1047
1048
1049         /* set default debug level to 1 regardless of what smb.conf sets */
1050         setup_logging( "smbcacls", True );
1051         DEBUGLEVEL_CLASS[DBGC_ALL] = 1;
1052         dbf = x_stderr;
1053         x_setbuf( x_stderr, NULL );
1054         AllowDebugChange = false;
1055
1056         setlinebuf(stdout);
1057
1058         lp_load(get_dyn_CONFIGFILE(),True,False,False,True);
1059         load_interfaces();
1060
1061         auth_info = user_auth_info_init(frame);
1062         if (auth_info == NULL) {
1063                 exit(1);
1064         }
1065         popt_common_set_auth_info(auth_info);
1066
1067         pc = poptGetContext("smbcacls", argc, argv, long_options, 0);
1068
1069         poptSetOtherOptionHelp(pc, "//server1/share1 filename\nACLs look like: "
1070                 "'ACL:user:[ALLOWED|DENIED]/flags/permissions'");
1071
1072         while ((opt = poptGetNextOpt(pc)) != -1) {
1073                 switch (opt) {
1074                 case 'S':
1075                         the_acl = smb_xstrdup(poptGetOptArg(pc));
1076                         mode = SMB_ACL_SET;
1077                         break;
1078
1079                 case 'D':
1080                         the_acl = smb_xstrdup(poptGetOptArg(pc));
1081                         mode = SMB_ACL_DELETE;
1082                         break;
1083
1084                 case 'M':
1085                         the_acl = smb_xstrdup(poptGetOptArg(pc));
1086                         mode = SMB_ACL_MODIFY;
1087                         break;
1088
1089                 case 'a':
1090                         the_acl = smb_xstrdup(poptGetOptArg(pc));
1091                         mode = SMB_ACL_ADD;
1092                         break;
1093
1094                 case 'C':
1095                         owner_username = poptGetOptArg(pc);
1096                         change_mode = REQUEST_CHOWN;
1097                         break;
1098
1099                 case 'G':
1100                         owner_username = poptGetOptArg(pc);
1101                         change_mode = REQUEST_CHGRP;
1102                         break;
1103                 }
1104         }
1105
1106         /* Make connection to server */
1107         if(!poptPeekArg(pc)) {
1108                 poptPrintUsage(pc, stderr, 0);
1109                 return -1;
1110         }
1111
1112         path = talloc_strdup(frame, poptGetArg(pc));
1113         if (!path) {
1114                 return -1;
1115         }
1116
1117         if(!poptPeekArg(pc)) {
1118                 poptPrintUsage(pc, stderr, 0);
1119                 return -1;
1120         }
1121
1122         filename = talloc_strdup(frame, poptGetArg(pc));
1123         if (!filename) {
1124                 return -1;
1125         }
1126
1127         string_replace(path,'/','\\');
1128
1129         server = talloc_strdup(frame, path+2);
1130         if (!server) {
1131                 return -1;
1132         }
1133         share = strchr_m(server,'\\');
1134         if (!share) {
1135                 printf("Invalid argument: %s\n", share);
1136                 return -1;
1137         }
1138
1139         *share = 0;
1140         share++;
1141
1142         if (!test_args) {
1143                 cli = connect_one(auth_info, server, share);
1144                 if (!cli) {
1145                         exit(EXIT_FAILED);
1146                 }
1147         } else {
1148                 exit(0);
1149         }
1150
1151         string_replace(filename, '/', '\\');
1152         if (filename[0] != '\\') {
1153                 filename = talloc_asprintf(frame,
1154                                 "\\%s",
1155                                 filename);
1156                 if (!filename) {
1157                         return -1;
1158                 }
1159         }
1160
1161         /* Perform requested action */
1162
1163         if (change_mode != REQUEST_NONE) {
1164                 result = owner_set(cli, change_mode, filename, owner_username);
1165         } else if (the_acl) {
1166                 result = cacl_set(cli, filename, the_acl, mode);
1167         } else {
1168                 result = cacl_dump(cli, filename);
1169         }
1170
1171         TALLOC_FREE(frame);
1172
1173         return result;
1174 }