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 "popt_common.h"
  26 #include "../librpc/gen_ndr/ndr_lsa.h"
  27 #include "rpc_client/cli_lsarpc.h"
  28 #include "../libcli/security/security.h"
  29
  30 extern bool AllowDebugChange;
  31
  32 static int test_args;
  33
  34 #define CREATE_ACCESS_READ READ_CONTROL_ACCESS
  35
  36 /* numeric is set when the user wants numeric SIDs and ACEs rather
  37    than going via LSA calls to resolve them */
  38 static int numeric;
  39
  40 static int sddl;
  41
  42 enum acl_mode {SMB_ACL_SET, SMB_ACL_DELETE, SMB_ACL_MODIFY, SMB_ACL_ADD };
  43 enum chown_mode {REQUEST_NONE, REQUEST_CHOWN, REQUEST_CHGRP, REQUEST_INHERIT};
  44 enum exit_values {EXIT_OK, EXIT_FAILED, EXIT_PARSE_ERROR};
  45
  46 struct perm_value {
  47         const char *perm;
  48         uint32 mask;
  49 };
  50
  51 /* These values discovered by inspection */
  52
  53 static const struct perm_value special_values[] = {
  54         { "R", 0x00120089 },
  55         { "W", 0x00120116 },
  56         { "X", 0x001200a0 },
  57         { "D", 0x00010000 },
  58         { "P", 0x00040000 },
  59         { "O", 0x00080000 },
  60         { NULL, 0 },
  61 };
  62
  63 static const struct perm_value standard_values[] = {
  64         { "READ",   0x001200a9 },
  65         { "CHANGE", 0x001301bf },
  66         { "FULL",   0x001f01ff },
  67         { NULL, 0 },
  68 };
  69
  70 /* Open cli connection and policy handle */
  71
  72 static NTSTATUS cli_lsa_lookup_sid(struct cli_state *cli,
  73                                    const struct dom_sid *sid,
  74                                    TALLOC_CTX *mem_ctx,
  75                                    enum lsa_SidType *type,
  76                                    char **domain, char **name)
  77 {
  78         uint16 orig_cnum = cli->cnum;
  79         struct rpc_pipe_client *p = NULL;
  80         struct policy_handle handle;
  81         NTSTATUS status;
  82         TALLOC_CTX *frame = talloc_stackframe();
  83         enum lsa_SidType *types;
  84         char **domains;
  85         char **names;
  86
  87         status = cli_tcon_andx(cli, "IPC$", "?????", "", 0);
  88         if (!NT_STATUS_IS_OK(status)) {
  89                 return status;
  90         }
  91
  92         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
  93                                           &p);
  94         if (!NT_STATUS_IS_OK(status)) {
  95                 goto fail;
  96         }
  97
  98         status = rpccli_lsa_open_policy(p, talloc_tos(), True,
  99                                         GENERIC_EXECUTE_ACCESS, &handle);
 100         if (!NT_STATUS_IS_OK(status)) {
 101                 goto fail;
 102         }
 103
 104         status = rpccli_lsa_lookup_sids(p, talloc_tos(), &handle, 1, sid,
 105                                         &domains, &names, &types);
 106         if (!NT_STATUS_IS_OK(status)) {
 107                 goto fail;
 108         }
 109
 110         *type = types[0];
 111         *domain = talloc_move(mem_ctx, &domains[0]);
 112         *name = talloc_move(mem_ctx, &names[0]);
 113
 114         status = NT_STATUS_OK;
 115  fail:
 116         TALLOC_FREE(p);
 117         cli_tdis(cli);
 118         cli->cnum = orig_cnum;
 119         TALLOC_FREE(frame);
 120         return status;
 121 }
 122
 123 static NTSTATUS cli_lsa_lookup_name(struct cli_state *cli,
 124                                     const char *name,
 125                                     enum lsa_SidType *type,
 126                                     struct dom_sid *sid)
 127 {
 128         uint16 orig_cnum = cli->cnum;
 129         struct rpc_pipe_client *p;
 130         struct policy_handle handle;
 131         NTSTATUS status;
 132         TALLOC_CTX *frame = talloc_stackframe();
 133         struct dom_sid *sids;
 134         enum lsa_SidType *types;
 135
 136         status = cli_tcon_andx(cli, "IPC$", "?????", "", 0);
 137         if (!NT_STATUS_IS_OK(status)) {
 138                 return status;
 139         }
 140
 141         status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
 142                                           &p);
 143         if (!NT_STATUS_IS_OK(status)) {
 144                 goto fail;
 145         }
 146
 147         status = rpccli_lsa_open_policy(p, talloc_tos(), True,
 148                                         GENERIC_EXECUTE_ACCESS, &handle);
 149         if (!NT_STATUS_IS_OK(status)) {
 150                 goto fail;
 151         }
 152
 153         status = rpccli_lsa_lookup_names(p, talloc_tos(), &handle, 1, &name,
 154                                          NULL, 1, &sids, &types);
 155         if (!NT_STATUS_IS_OK(status)) {
 156                 goto fail;
 157         }
 158
 159         *type = types[0];
 160         *sid = sids[0];
 161
 162         status = NT_STATUS_OK;
 163  fail:
 164         TALLOC_FREE(p);
 165         cli_tdis(cli);
 166         cli->cnum = orig_cnum;
 167         TALLOC_FREE(frame);
 168         return status;
 169 }
 170
 171 /* convert a SID to a string, either numeric or username/group */
 172 static void SidToString(struct cli_state *cli, fstring str, const struct dom_sid *sid)
 173 {
 174         char *domain = NULL;
 175         char *name = NULL;
 176         enum lsa_SidType type;
 177         NTSTATUS status;
 178
 179         sid_to_fstring(str, sid);
 180
 181         if (numeric) {
 182                 return;
 183         }
 184
 185         status = cli_lsa_lookup_sid(cli, sid, talloc_tos(), &type,
 186                                     &domain, &name);
 187
 188         if (!NT_STATUS_IS_OK(status)) {
 189                 return;
 190         }
 191
 192         if (*domain) {
 193                 slprintf(str, sizeof(fstring) - 1, "%s%s%s",
 194                         domain, lp_winbind_separator(), name);
 195         } else {
 196                 fstrcpy(str, name);
 197         }
 198 }
 199
 200 /* convert a string to a SID, either numeric or username/group */
 201 static bool StringToSid(struct cli_state *cli, struct dom_sid *sid, const char *str)
 202 {
 203         enum lsa_SidType type;
 204
 205         if (strncmp(str, "S-", 2) == 0) {
 206                 return string_to_sid(sid, str);
 207         }
 208
 209         return NT_STATUS_IS_OK(cli_lsa_lookup_name(cli, str, &type, sid));
 210 }
 211
 212 static void print_ace_flags(FILE *f, uint8_t flags)
 213 {
 214         char *str = talloc_strdup(NULL, "");
 215
 216         if (!str) {
 217                 goto out;
 218         }
 219
 220         if (flags & SEC_ACE_FLAG_OBJECT_INHERIT) {
 221                 str = talloc_asprintf(str, "%s%s",
 222                                 str, "OI|");
 223                 if (!str) {
 224                         goto out;
 225                 }
 226         }
 227         if (flags & SEC_ACE_FLAG_CONTAINER_INHERIT) {
 228                 str = talloc_asprintf(str, "%s%s",
 229                                 str, "CI|");
 230                 if (!str) {
 231                         goto out;
 232                 }
 233         }
 234         if (flags & SEC_ACE_FLAG_NO_PROPAGATE_INHERIT) {
 235                 str = talloc_asprintf(str, "%s%s",
 236                                 str, "NP|");
 237                 if (!str) {
 238                         goto out;
 239                 }
 240         }
 241         if (flags & SEC_ACE_FLAG_INHERIT_ONLY) {
 242                 str = talloc_asprintf(str, "%s%s",
 243                                 str, "IO|");
 244                 if (!str) {
 245                         goto out;
 246                 }
 247         }
 248         if (flags & SEC_ACE_FLAG_INHERITED_ACE) {
 249                 str = talloc_asprintf(str, "%s%s",
 250                                 str, "I|");
 251                 if (!str) {
 252                         goto out;
 253                 }
 254         }
 255         /* Ignore define SEC_ACE_FLAG_SUCCESSFUL_ACCESS ( 0x40 )
 256            and SEC_ACE_FLAG_FAILED_ACCESS ( 0x80 ) as they're
 257            audit ace flags. */
 258
 259         if (str[strlen(str)-1] == '|') {
 260                 str[strlen(str)-1] = '\0';
 261                 fprintf(f, "/%s/", str);
 262         } else {
 263                 fprintf(f, "/0x%x/", flags);
 264         }
 265         TALLOC_FREE(str);
 266         return;
 267
 268   out:
 269         fprintf(f, "/0x%x/", flags);
 270 }
 271
 272 /* print an ACE on a FILE, using either numeric or ascii representation */
 273 static void print_ace(struct cli_state *cli, FILE *f, struct security_ace *ace)
 274 {
 275         const struct perm_value *v;
 276         fstring sidstr;
 277         int do_print = 0;
 278         uint32 got_mask;
 279
 280         SidToString(cli, sidstr, &ace->trustee);
 281
 282         fprintf(f, "%s:", sidstr);
 283
 284         if (numeric) {
 285                 fprintf(f, "%d/0x%x/0x%08x",
 286                         ace->type, ace->flags, ace->access_mask);
 287                 return;
 288         }
 289
 290         /* Ace type */
 291
 292         if (ace->type == SEC_ACE_TYPE_ACCESS_ALLOWED) {
 293                 fprintf(f, "ALLOWED");
 294         } else if (ace->type == SEC_ACE_TYPE_ACCESS_DENIED) {
 295                 fprintf(f, "DENIED");
 296         } else {
 297                 fprintf(f, "%d", ace->type);
 298         }
 299
 300         print_ace_flags(f, ace->flags);
 301
 302         /* Standard permissions */
 303
 304         for (v = standard_values; v->perm; v++) {
 305                 if (ace->access_mask == v->mask) {
 306                         fprintf(f, "%s", v->perm);
 307                         return;
 308                 }
 309         }
 310
 311         /* Special permissions.  Print out a hex value if we have
 312            leftover bits in the mask. */
 313
 314         got_mask = ace->access_mask;
 315
 316  again:
 317         for (v = special_values; v->perm; v++) {
 318                 if ((ace->access_mask & v->mask) == v->mask) {
 319                         if (do_print) {
 320                                 fprintf(f, "%s", v->perm);
 321                         }
 322                         got_mask &= ~v->mask;
 323                 }
 324         }
 325
 326         if (!do_print) {
 327                 if (got_mask != 0) {
 328                         fprintf(f, "0x%08x", ace->access_mask);
 329                 } else {
 330                         do_print = 1;
 331                         goto again;
 332                 }
 333         }
 334 }
 335
 336 static bool parse_ace_flags(const char *str, unsigned int *pflags)
 337 {
 338         const char *p = str;
 339         *pflags = 0;
 340
 341         while (*p) {
 342                 if (strnequal(p, "OI", 2)) {
 343                         *pflags |= SEC_ACE_FLAG_OBJECT_INHERIT;
 344                         p += 2;
 345                 } else if (strnequal(p, "CI", 2)) {
 346                         *pflags |= SEC_ACE_FLAG_CONTAINER_INHERIT;
 347                         p += 2;
 348                 } else if (strnequal(p, "NP", 2)) {
 349                         *pflags |= SEC_ACE_FLAG_NO_PROPAGATE_INHERIT;
 350                         p += 2;
 351                 } else if (strnequal(p, "IO", 2)) {
 352                         *pflags |= SEC_ACE_FLAG_INHERIT_ONLY;
 353                         p += 2;
 354                 } else if (*p == 'I') {
 355                         *pflags |= SEC_ACE_FLAG_INHERITED_ACE;
 356                         p += 1;
 357                 } else if (*p) {
 358                         return false;
 359                 }
 360
 361                 if (*p != '|' && *p != '\0') {
 362                         return false;
 363                 }
 364         }
 365         return true;
 366 }
 367
 368 /* parse an ACE in the same format as print_ace() */
 369 static bool parse_ace(struct cli_state *cli, struct security_ace *ace,
 370                       const char *orig_str)
 371 {
 372         char *p;
 373         const char *cp;
 374         char *tok;
 375         unsigned int atype = 0;
 376         unsigned int aflags = 0;
 377         unsigned int amask = 0;
 378         struct dom_sid sid;
 379         uint32_t mask;
 380         const struct perm_value *v;
 381         char *str = SMB_STRDUP(orig_str);
 382         TALLOC_CTX *frame = talloc_stackframe();
 383
 384         if (!str) {
 385                 TALLOC_FREE(frame);
 386                 return False;
 387         }
 388
 389         ZERO_STRUCTP(ace);
 390         p = strchr_m(str,':');
 391         if (!p) {
 392                 printf("ACE '%s': missing ':'.\n", orig_str);
 393                 SAFE_FREE(str);
 394                 TALLOC_FREE(frame);
 395                 return False;
 396         }
 397         *p = '\0';
 398         p++;
 399         /* Try to parse numeric form */
 400
 401         if (sscanf(p, "%i/%i/%i", &atype, &aflags, &amask) == 3 &&
 402             StringToSid(cli, &sid, str)) {
 403                 goto done;
 404         }
 405
 406         /* Try to parse text form */
 407
 408         if (!StringToSid(cli, &sid, str)) {
 409                 printf("ACE '%s': failed to convert '%s' to SID\n",
 410                         orig_str, str);
 411                 SAFE_FREE(str);
 412                 TALLOC_FREE(frame);
 413                 return False;
 414         }
 415
 416         cp = p;
 417         if (!next_token_talloc(frame, &cp, &tok, "/")) {
 418                 printf("ACE '%s': failed to find '/' character.\n",
 419                         orig_str);
 420                 SAFE_FREE(str);
 421                 TALLOC_FREE(frame);
 422                 return False;
 423         }
 424
 425         if (strncmp(tok, "ALLOWED", strlen("ALLOWED")) == 0) {
 426                 atype = SEC_ACE_TYPE_ACCESS_ALLOWED;
 427         } else if (strncmp(tok, "DENIED", strlen("DENIED")) == 0) {
 428                 atype = SEC_ACE_TYPE_ACCESS_DENIED;
 429         } else {
 430                 printf("ACE '%s': missing 'ALLOWED' or 'DENIED' entry at '%s'\n",
 431                         orig_str, tok);
 432                 SAFE_FREE(str);
 433                 TALLOC_FREE(frame);
 434                 return False;
 435         }
 436
 437         /* Only numeric form accepted for flags at present */
 438
 439         if (!next_token_talloc(frame, &cp, &tok, "/")) {
 440                 printf("ACE '%s': bad flags entry at '%s'\n",
 441                         orig_str, tok);
 442                 SAFE_FREE(str);
 443                 TALLOC_FREE(frame);
 444                 return False;
 445         }
 446
 447         if (tok[0] < '0' || tok[0] > '9') {
 448                 if (!parse_ace_flags(tok, &aflags)) {
 449                         printf("ACE '%s': bad named flags entry at '%s'\n",
 450                                 orig_str, tok);
 451                         SAFE_FREE(str);
 452                         TALLOC_FREE(frame);
 453                         return False;
 454                 }
 455         } else if (strnequal(tok, "0x", 2)) {
 456                 if (!sscanf(tok, "%x", &aflags)) {
 457                         printf("ACE '%s': bad hex flags entry at '%s'\n",
 458                                 orig_str, tok);
 459                         SAFE_FREE(str);
 460                         TALLOC_FREE(frame);
 461                         return False;
 462                 }
 463         } else {
 464                 if (!sscanf(tok, "%i", &aflags)) {
 465                         printf("ACE '%s': bad integer flags entry at '%s'\n",
 466                                 orig_str, tok);
 467                         SAFE_FREE(str);
 468                         TALLOC_FREE(frame);
 469                         return False;
 470                 }
 471         }
 472
 473         if (!next_token_talloc(frame, &cp, &tok, "/")) {
 474                 printf("ACE '%s': missing / at '%s'\n",
 475                         orig_str, tok);
 476                 SAFE_FREE(str);
 477                 TALLOC_FREE(frame);
 478                 return False;
 479         }
 480
 481         if (strncmp(tok, "0x", 2) == 0) {
 482                 if (sscanf(tok, "%i", &amask) != 1) {
 483                         printf("ACE '%s': bad hex number at '%s'\n",
 484                                 orig_str, tok);
 485                         SAFE_FREE(str);
 486                         TALLOC_FREE(frame);
 487                         return False;
 488                 }
 489                 goto done;
 490         }
 491
 492         for (v = standard_values; v->perm; v++) {
 493                 if (strcmp(tok, v->perm) == 0) {
 494                         amask = v->mask;
 495                         goto done;
 496                 }
 497         }
 498
 499         p = tok;
 500
 501         while(*p) {
 502                 bool found = False;
 503
 504                 for (v = special_values; v->perm; v++) {
 505                         if (v->perm[0] == *p) {
 506                                 amask |= v->mask;
 507                                 found = True;
 508                         }
 509                 }
 510
 511                 if (!found) {
 512                         printf("ACE '%s': bad permission value at '%s'\n",
 513                                 orig_str, p);
 514                         SAFE_FREE(str);
 515                         TALLOC_FREE(frame);
 516                         return False;
 517                 }
 518                 p++;
 519         }
 520
 521         if (*p) {
 522                 TALLOC_FREE(frame);
 523                 SAFE_FREE(str);
 524                 return False;
 525         }
 526
 527  done:
 528         mask = amask;
 529         init_sec_ace(ace, &sid, atype, mask, aflags);
 530         TALLOC_FREE(frame);
 531         SAFE_FREE(str);
 532         return True;
 533 }
 534
 535 /* add an ACE to a list of ACEs in a struct security_acl */
 536 static bool add_ace(struct security_acl **the_acl, struct security_ace *ace)
 537 {
 538         struct security_acl *new_ace;
 539         struct security_ace *aces;
 540         if (! *the_acl) {
 541                 return (((*the_acl) = make_sec_acl(talloc_tos(), 3, 1, ace))
 542                         != NULL);
 543         }
 544
 545         if (!(aces = SMB_CALLOC_ARRAY(struct security_ace, 1+(*the_acl)->num_aces))) {
 546                 return False;
 547         }
 548         memcpy(aces, (*the_acl)->aces, (*the_acl)->num_aces * sizeof(struct
 549         security_ace));
 550         memcpy(aces+(*the_acl)->num_aces, ace, sizeof(struct security_ace));
 551         new_ace = make_sec_acl(talloc_tos(),(*the_acl)->revision,1+(*the_acl)->num_aces, aces);
 552         SAFE_FREE(aces);
 553         (*the_acl) = new_ace;
 554         return True;
 555 }
 556
 557 /* parse a ascii version of a security descriptor */
 558 static struct security_descriptor *sec_desc_parse(TALLOC_CTX *ctx, struct cli_state *cli, char *str)
 559 {
 560         const char *p = str;
 561         char *tok;
 562         struct security_descriptor *ret = NULL;
 563         size_t sd_size;
 564         struct dom_sid *grp_sid=NULL, *owner_sid=NULL;
 565         struct security_acl *dacl=NULL;
 566         int revision=1;
 567
 568         while (next_token_talloc(ctx, &p, &tok, "\t,\r\n")) {
 569                 if (strncmp(tok,"REVISION:", 9) == 0) {
 570                         revision = strtol(tok+9, NULL, 16);
 571                         continue;
 572                 }
 573
 574                 if (strncmp(tok,"OWNER:", 6) == 0) {
 575                         if (owner_sid) {
 576                                 printf("Only specify owner once\n");
 577                                 goto done;
 578                         }
 579                         owner_sid = SMB_CALLOC_ARRAY(struct dom_sid, 1);
 580                         if (!owner_sid ||
 581                             !StringToSid(cli, owner_sid, tok+6)) {
 582                                 printf("Failed to parse owner sid\n");
 583                                 goto done;
 584                         }
 585                         continue;
 586                 }
 587
 588                 if (strncmp(tok,"GROUP:", 6) == 0) {
 589                         if (grp_sid) {
 590                                 printf("Only specify group once\n");
 591                                 goto done;
 592                         }
 593                         grp_sid = SMB_CALLOC_ARRAY(struct dom_sid, 1);
 594                         if (!grp_sid ||
 595                             !StringToSid(cli, grp_sid, tok+6)) {
 596                                 printf("Failed to parse group sid\n");
 597                                 goto done;
 598                         }
 599                         continue;
 600                 }
 601
 602                 if (strncmp(tok,"ACL:", 4) == 0) {
 603                         struct security_ace ace;
 604                         if (!parse_ace(cli, &ace, tok+4)) {
 605                                 goto done;
 606                         }
 607                         if(!add_ace(&dacl, &ace)) {
 608                                 printf("Failed to add ACL %s\n", tok);
 609                                 goto done;
 610                         }
 611                         continue;
 612                 }
 613
 614                 printf("Failed to parse token '%s' in security descriptor,\n", tok);
 615                 goto done;
 616         }
 617
 618         ret = make_sec_desc(ctx,revision, SEC_DESC_SELF_RELATIVE, owner_sid, grp_sid,
 619                             NULL, dacl, &sd_size);
 620
 621   done:
 622         SAFE_FREE(grp_sid);
 623         SAFE_FREE(owner_sid);
 624
 625         return ret;
 626 }
 627
 628
 629 /* print a ascii version of a security descriptor on a FILE handle */
 630 static void sec_desc_print(struct cli_state *cli, FILE *f, struct security_descriptor *sd)
 631 {
 632         fstring sidstr;
 633         uint32 i;
 634
 635         fprintf(f, "REVISION:%d\n", sd->revision);
 636         fprintf(f, "CONTROL:0x%x\n", sd->type);
 637
 638         /* Print owner and group sid */
 639
 640         if (sd->owner_sid) {
 641                 SidToString(cli, sidstr, sd->owner_sid);
 642         } else {
 643                 fstrcpy(sidstr, "");
 644         }
 645
 646         fprintf(f, "OWNER:%s\n", sidstr);
 647
 648         if (sd->group_sid) {
 649                 SidToString(cli, sidstr, sd->group_sid);
 650         } else {
 651                 fstrcpy(sidstr, "");
 652         }
 653
 654         fprintf(f, "GROUP:%s\n", sidstr);
 655
 656         /* Print aces */
 657         for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
 658                 struct security_ace *ace = &sd->dacl->aces[i];
 659                 fprintf(f, "ACL:");
 660                 print_ace(cli, f, ace);
 661                 fprintf(f, "\n");
 662         }
 663
 664 }
 665
 666 /*****************************************************
 667 get fileinfo for filename
 668 *******************************************************/
 669 static uint16 get_fileinfo(struct cli_state *cli, const char *filename)
 670 {
 671         uint16_t fnum = (uint16_t)-1;
 672         uint16 mode;
 673
 674         /* The desired access below is the only one I could find that works
 675            with NT4, W2KP and Samba */
 676
 677         if (!NT_STATUS_IS_OK(cli_ntcreate(cli, filename, 0, CREATE_ACCESS_READ,
 678                                           0, FILE_SHARE_READ|FILE_SHARE_WRITE,
 679                                           FILE_OPEN, 0x0, 0x0, &fnum))) {
 680                 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
 681         }
 682
 683         if (!cli_qfileinfo(cli, fnum, &mode, NULL, NULL, NULL,
 684                                              NULL, NULL, NULL)) {
 685                 printf("Failed to file info %s: %s\n", filename,
 686                                                        cli_errstr(cli));
 687         }
 688
 689         cli_close(cli, fnum);
 690
 691         return mode;
 692 }
 693
 694 /*****************************************************
 695 get sec desc for filename
 696 *******************************************************/
 697 static struct security_descriptor *get_secdesc(struct cli_state *cli, const char *filename)
 698 {
 699         uint16_t fnum = (uint16_t)-1;
 700         struct security_descriptor *sd;
 701
 702         /* The desired access below is the only one I could find that works
 703            with NT4, W2KP and Samba */
 704
 705         if (!NT_STATUS_IS_OK(cli_ntcreate(cli, filename, 0, CREATE_ACCESS_READ,
 706                                           0, FILE_SHARE_READ|FILE_SHARE_WRITE,
 707                                           FILE_OPEN, 0x0, 0x0, &fnum))) {
 708                 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
 709                 return NULL;
 710         }
 711
 712         sd = cli_query_secdesc(cli, fnum, talloc_tos());
 713
 714         cli_close(cli, fnum);
 715
 716         if (!sd) {
 717                 printf("Failed to get security descriptor\n");
 718                 return NULL;
 719         }
 720         return sd;
 721 }
 722
 723 /*****************************************************
 724 set sec desc for filename
 725 *******************************************************/
 726 static bool set_secdesc(struct cli_state *cli, const char *filename,
 727                         struct security_descriptor *sd)
 728 {
 729         uint16_t fnum = (uint16_t)-1;
 730         bool result=true;
 731
 732         /* The desired access below is the only one I could find that works
 733            with NT4, W2KP and Samba */
 734
 735         if (!NT_STATUS_IS_OK(cli_ntcreate(cli, filename, 0,
 736                                           WRITE_DAC_ACCESS|WRITE_OWNER_ACCESS,
 737                                           0, FILE_SHARE_READ|FILE_SHARE_WRITE,
 738                                           FILE_OPEN, 0x0, 0x0, &fnum))) {
 739                 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
 740                 return false;
 741         }
 742
 743         if (!cli_set_secdesc(cli, fnum, sd)) {
 744                 printf("ERROR: security description set failed: %s\n",
 745                        cli_errstr(cli));
 746                 result=false;
 747         }
 748
 749         cli_close(cli, fnum);
 750         return result;
 751 }
 752
 753 /*****************************************************
 754 dump the acls for a file
 755 *******************************************************/
 756 static int cacl_dump(struct cli_state *cli, const char *filename)
 757 {
 758         int result = EXIT_FAILED;
 759         struct security_descriptor *sd;
 760
 761         if (test_args)
 762                 return EXIT_OK;
 763
 764         sd = get_secdesc(cli, filename);
 765
 766         if (sd) {
 767                 if (sddl) {
 768                         printf("%s\n", sddl_encode(talloc_tos(), sd,
 769                                            get_global_sam_sid()));
 770                 } else {
 771                         sec_desc_print(cli, stdout, sd);
 772                 }
 773                 result = EXIT_OK;
 774         }
 775
 776         return result;
 777 }
 778
 779 /*****************************************************
 780 Change the ownership or group ownership of a file. Just
 781 because the NT docs say this can't be done :-). JRA.
 782 *******************************************************/
 783
 784 static int owner_set(struct cli_state *cli, enum chown_mode change_mode,
 785                         const char *filename, const char *new_username)
 786 {
 787         struct dom_sid sid;
 788         struct security_descriptor *sd, *old;
 789         size_t sd_size;
 790
 791         if (!StringToSid(cli, &sid, new_username))
 792                 return EXIT_PARSE_ERROR;
 793
 794         old = get_secdesc(cli, filename);
 795
 796         if (!old) {
 797                 return EXIT_FAILED;
 798         }
 799
 800         sd = make_sec_desc(talloc_tos(),old->revision, old->type,
 801                                 (change_mode == REQUEST_CHOWN) ? &sid : NULL,
 802                                 (change_mode == REQUEST_CHGRP) ? &sid : NULL,
 803                            NULL, NULL, &sd_size);
 804
 805         if (!set_secdesc(cli, filename, sd)) {
 806                 return EXIT_FAILED;
 807         }
 808
 809         return EXIT_OK;
 810 }
 811
 812
 813 /* The MSDN is contradictory over the ordering of ACE entries in an
 814    ACL.  However NT4 gives a "The information may have been modified
 815    by a computer running Windows NT 5.0" if denied ACEs do not appear
 816    before allowed ACEs. At
 817    http://technet.microsoft.com/en-us/library/cc781716.aspx the
 818    canonical order is specified as "Explicit Deny, Explicit Allow,
 819    Inherited ACEs unchanged" */
 820
 821 static int ace_compare(struct security_ace *ace1, struct security_ace *ace2)
 822 {
 823         if (sec_ace_equal(ace1, ace2))
 824                 return 0;
 825
 826         if ((ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
 827                         !(ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
 828                 return 1;
 829         if (!(ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
 830                         (ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
 831                 return -1;
 832         if ((ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
 833                         (ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
 834                 return ace1 - ace2;
 835
 836         if (ace1->type != ace2->type)
 837                 return ace2->type - ace1->type;
 838
 839         if (dom_sid_compare(&ace1->trustee, &ace2->trustee))
 840                 return dom_sid_compare(&ace1->trustee, &ace2->trustee);
 841
 842         if (ace1->flags != ace2->flags)
 843                 return ace1->flags - ace2->flags;
 844
 845         if (ace1->access_mask != ace2->access_mask)
 846                 return ace1->access_mask - ace2->access_mask;
 847
 848         if (ace1->size != ace2->size)
 849                 return ace1->size - ace2->size;
 850
 851         return memcmp(ace1, ace2, sizeof(struct security_ace));
 852 }
 853
 854 static void sort_acl(struct security_acl *the_acl)
 855 {
 856         uint32 i;
 857         if (!the_acl) return;
 858
 859         TYPESAFE_QSORT(the_acl->aces, the_acl->num_aces, ace_compare);
 860
 861         for (i=1;i<the_acl->num_aces;) {
 862                 if (sec_ace_equal(&the_acl->aces[i-1], &the_acl->aces[i])) {
 863                         int j;
 864                         for (j=i; j<the_acl->num_aces-1; j++) {
 865                                 the_acl->aces[j] = the_acl->aces[j+1];
 866                         }
 867                         the_acl->num_aces--;
 868                 } else {
 869                         i++;
 870                 }
 871         }
 872 }
 873
 874 /*****************************************************
 875 set the ACLs on a file given an ascii description
 876 *******************************************************/
 877
 878 static int cacl_set(struct cli_state *cli, const char *filename,
 879                     char *the_acl, enum acl_mode mode)
 880 {
 881         struct security_descriptor *sd, *old;
 882         uint32 i, j;
 883         size_t sd_size;
 884         int result = EXIT_OK;
 885
 886         if (sddl) {
 887                 sd = sddl_decode(talloc_tos(), the_acl, get_global_sam_sid());
 888         } else {
 889                 sd = sec_desc_parse(talloc_tos(), cli, the_acl);
 890         }
 891
 892         if (!sd) return EXIT_PARSE_ERROR;
 893         if (test_args) return EXIT_OK;
 894
 895         old = get_secdesc(cli, filename);
 896
 897         if (!old) {
 898                 return EXIT_FAILED;
 899         }
 900
 901         /* the logic here is rather more complex than I would like */
 902         switch (mode) {
 903         case SMB_ACL_DELETE:
 904                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
 905                         bool found = False;
 906
 907                         for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
 908                                 if (sec_ace_equal(&sd->dacl->aces[i],
 909                                                   &old->dacl->aces[j])) {
 910                                         uint32 k;
 911                                         for (k=j; k<old->dacl->num_aces-1;k++) {
 912                                                 old->dacl->aces[k] = old->dacl->aces[k+1];
 913                                         }
 914                                         old->dacl->num_aces--;
 915                                         found = True;
 916                                         break;
 917                                 }
 918                         }
 919
 920                         if (!found) {
 921                                 printf("ACL for ACE:");
 922                                 print_ace(cli, stdout, &sd->dacl->aces[i]);
 923                                 printf(" not found\n");
 924                         }
 925                 }
 926                 break;
 927
 928         case SMB_ACL_MODIFY:
 929                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
 930                         bool found = False;
 931
 932                         for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
 933                                 if (dom_sid_equal(&sd->dacl->aces[i].trustee,
 934                                               &old->dacl->aces[j].trustee)) {
 935                                         old->dacl->aces[j] = sd->dacl->aces[i];
 936                                         found = True;
 937                                 }
 938                         }
 939
 940                         if (!found) {
 941                                 fstring str;
 942
 943                                 SidToString(cli, str,
 944                                             &sd->dacl->aces[i].trustee);
 945                                 printf("ACL for SID %s not found\n", str);
 946                         }
 947                 }
 948
 949                 if (sd->owner_sid) {
 950                         old->owner_sid = sd->owner_sid;
 951                 }
 952
 953                 if (sd->group_sid) {
 954                         old->group_sid = sd->group_sid;
 955                 }
 956
 957                 break;
 958
 959         case SMB_ACL_ADD:
 960                 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
 961                         add_ace(&old->dacl, &sd->dacl->aces[i]);
 962                 }
 963                 break;
 964
 965         case SMB_ACL_SET:
 966                 old = sd;
 967                 break;
 968         }
 969
 970         /* Denied ACE entries must come before allowed ones */
 971         sort_acl(old->dacl);
 972
 973         /* Create new security descriptor and set it */
 974
 975         /* We used to just have "WRITE_DAC_ACCESS" without WRITE_OWNER.
 976            But if we're sending an owner, even if it's the same as the one
 977            that already exists then W2K3 insists we open with WRITE_OWNER access.
 978            I need to check that setting a SD with no owner set works against WNT
 979            and W2K. JRA.
 980         */
 981
 982         sd = make_sec_desc(talloc_tos(),old->revision, old->type,
 983                            old->owner_sid, old->group_sid,
 984                            NULL, old->dacl, &sd_size);
 985
 986         if (!set_secdesc(cli, filename, sd)) {
 987                 result = EXIT_FAILED;
 988         }
 989
 990         return result;
 991 }
 992
 993 /*****************************************************
 994 set the inherit on a file
 995 *******************************************************/
 996 static int inherit(struct cli_state *cli, const char *filename,
 997                    const char *type)
 998 {
 999         struct security_descriptor *old,*sd;
1000         uint32 oldattr;
1001         size_t sd_size;
1002         int result = EXIT_OK;
1003
1004         old = get_secdesc(cli, filename);
1005
1006         if (!old) {
1007                 return EXIT_FAILED;
1008         }
1009
1010         oldattr = get_fileinfo(cli,filename);
1011
1012         if (strcmp(type,"allow")==0) {
1013                 if ((old->type & SEC_DESC_DACL_PROTECTED) ==
1014                     SEC_DESC_DACL_PROTECTED) {
1015                         int i;
1016                         char *parentname,*temp;
1017                         struct security_descriptor *parent;
1018                         temp = talloc_strdup(talloc_tos(), filename);
1019
1020                         old->type=old->type & (~SEC_DESC_DACL_PROTECTED);
1021
1022                         /* look at parent and copy in all its inheritable ACL's. */
1023                         string_replace(temp, '\\', '/');
1024                         if (!parent_dirname(talloc_tos(),temp,&parentname,NULL)) {
1025                                 return EXIT_FAILED;
1026                         }
1027                         string_replace(parentname, '/', '\\');
1028                         parent = get_secdesc(cli,parentname);
1029                         for (i=0;i<parent->dacl->num_aces;i++) {
1030                                 struct security_ace *ace=&parent->dacl->aces[i];
1031                                 /* Add inherited flag to all aces */
1032                                 ace->flags=ace->flags|
1033                                            SEC_ACE_FLAG_INHERITED_ACE;
1034                                 if ((oldattr & aDIR) == aDIR) {
1035                                         if ((ace->flags & SEC_ACE_FLAG_CONTAINER_INHERIT) ==
1036                                             SEC_ACE_FLAG_CONTAINER_INHERIT) {
1037                                                 add_ace(&old->dacl, ace);
1038                                         }
1039                                 } else {
1040                                         if ((ace->flags & SEC_ACE_FLAG_OBJECT_INHERIT) ==
1041                                             SEC_ACE_FLAG_OBJECT_INHERIT) {
1042                                                 /* clear flags for files */
1043                                                 ace->flags=0;
1044                                                 add_ace(&old->dacl, ace);
1045                                         }
1046                                 }
1047                         }
1048                 } else {
1049                         printf("Already set to inheritable permissions.\n");
1050                         return EXIT_FAILED;
1051                 }
1052         } else if (strcmp(type,"remove")==0) {
1053                 if ((old->type & SEC_DESC_DACL_PROTECTED) !=
1054                     SEC_DESC_DACL_PROTECTED) {
1055                         old->type=old->type | SEC_DESC_DACL_PROTECTED;
1056
1057                         /* remove all inherited ACL's. */
1058                         if (old->dacl) {
1059                                 int i;
1060                                 struct security_acl *temp=old->dacl;
1061                                 old->dacl=make_sec_acl(talloc_tos(), 3, 0, NULL);
1062                                 for (i=temp->num_aces-1;i>=0;i--) {
1063                                         struct security_ace *ace=&temp->aces[i];
1064                                         /* Remove all ace with INHERITED flag set */
1065                                         if ((ace->flags & SEC_ACE_FLAG_INHERITED_ACE) !=
1066                                             SEC_ACE_FLAG_INHERITED_ACE) {
1067                                                 add_ace(&old->dacl,ace);
1068                                         }
1069                                 }
1070                         }
1071                 } else {
1072                         printf("Already set to no inheritable permissions.\n");
1073                         return EXIT_FAILED;
1074                 }
1075         } else if (strcmp(type,"copy")==0) {
1076                 if ((old->type & SEC_DESC_DACL_PROTECTED) !=
1077                     SEC_DESC_DACL_PROTECTED) {
1078                         old->type=old->type | SEC_DESC_DACL_PROTECTED;
1079
1080                         /* convert all inherited ACL's to non inherated ACL's. */
1081                         if (old->dacl) {
1082                                 int i;
1083                                 for (i=0;i<old->dacl->num_aces;i++) {
1084                                         struct security_ace *ace=&old->dacl->aces[i];
1085                                         /* Remove INHERITED FLAG from all aces */
1086                                         ace->flags=ace->flags&(~SEC_ACE_FLAG_INHERITED_ACE);
1087                                 }
1088                         }
1089                 } else {
1090                         printf("Already set to no inheritable permissions.\n");
1091                         return EXIT_FAILED;
1092                 }
1093         }
1094
1095         /* Denied ACE entries must come before allowed ones */
1096         sort_acl(old->dacl);
1097
1098         sd = make_sec_desc(talloc_tos(),old->revision, old->type,
1099                            old->owner_sid, old->group_sid,
1100                            NULL, old->dacl, &sd_size);
1101
1102         if (!set_secdesc(cli, filename, sd)) {
1103                 result = EXIT_FAILED;
1104         }
1105
1106         return result;
1107 }
1108
1109 /*****************************************************
1110  Return a connection to a server.
1111 *******************************************************/
1112 static struct cli_state *connect_one(struct user_auth_info *auth_info,
1113                                      const char *server, const char *share)
1114 {
1115         struct cli_state *c = NULL;
1116         struct sockaddr_storage ss;
1117         NTSTATUS nt_status;
1118         uint32_t flags = 0;
1119
1120         zero_sockaddr(&ss);
1121
1122         if (get_cmdline_auth_info_use_kerberos(auth_info)) {
1123                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS |
1124                          CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
1125         }
1126
1127         if (get_cmdline_auth_info_use_machine_account(auth_info) &&
1128             !set_cmdline_auth_info_machine_account_creds(auth_info)) {
1129                 return NULL;
1130         }
1131
1132         set_cmdline_auth_info_getpass(auth_info);
1133
1134         nt_status = cli_full_connection(&c, global_myname(), server,
1135                                 &ss, 0,
1136                                 share, "?????",
1137                                 get_cmdline_auth_info_username(auth_info),
1138                                 lp_workgroup(),
1139                                 get_cmdline_auth_info_password(auth_info),
1140                                 flags,
1141                                 get_cmdline_auth_info_signing_state(auth_info),
1142                                 NULL);
1143         if (!NT_STATUS_IS_OK(nt_status)) {
1144                 DEBUG(0,("cli_full_connection failed! (%s)\n", nt_errstr(nt_status)));
1145                 return NULL;
1146         }
1147
1148         if (get_cmdline_auth_info_smb_encrypt(auth_info)) {
1149                 nt_status = cli_cm_force_encryption(c,
1150                                         get_cmdline_auth_info_username(auth_info),
1151                                         get_cmdline_auth_info_password(auth_info),
1152                                         lp_workgroup(),
1153                                         share);
1154                 if (!NT_STATUS_IS_OK(nt_status)) {
1155                         cli_shutdown(c);
1156                         c = NULL;
1157                 }
1158         }
1159
1160         return c;
1161 }
1162
1163 /****************************************************************************
1164   main program
1165 ****************************************************************************/
1166  int main(int argc, const char *argv[])
1167 {
1168         char *share;
1169         int opt;
1170         enum acl_mode mode = SMB_ACL_SET;
1171         static char *the_acl = NULL;
1172         enum chown_mode change_mode = REQUEST_NONE;
1173         int result;
1174         char *path;
1175         char *filename = NULL;
1176         poptContext pc;
1177         struct poptOption long_options[] = {
1178                 POPT_AUTOHELP
1179                 { "delete", 'D', POPT_ARG_STRING, NULL, 'D', "Delete an acl", "ACL" },
1180                 { "modify", 'M', POPT_ARG_STRING, NULL, 'M', "Modify an acl", "ACL" },
1181                 { "add", 'a', POPT_ARG_STRING, NULL, 'a', "Add an acl", "ACL" },
1182                 { "set", 'S', POPT_ARG_STRING, NULL, 'S', "Set acls", "ACLS" },
1183                 { "chown", 'C', POPT_ARG_STRING, NULL, 'C', "Change ownership of a file", "USERNAME" },
1184                 { "chgrp", 'G', POPT_ARG_STRING, NULL, 'G', "Change group ownership of a file", "GROUPNAME" },
1185                 { "inherit", 'I', POPT_ARG_STRING, NULL, 'I', "Inherit allow|remove|copy" },
1186                 { "numeric", 0, POPT_ARG_NONE, &numeric, 1, "Don't resolve sids or masks to names" },
1187                 { "sddl", 0, POPT_ARG_NONE, &sddl, 1, "Output and input acls in sddl format" },
1188                 { "test-args", 't', POPT_ARG_NONE, &test_args, 1, "Test arguments"},
1189                 POPT_COMMON_SAMBA
1190                 POPT_COMMON_CONNECTION
1191                 POPT_COMMON_CREDENTIALS
1192                 POPT_TABLEEND
1193         };
1194
1195         struct cli_state *cli;
1196         TALLOC_CTX *frame = talloc_stackframe();
1197         const char *owner_username = "";
1198         char *server;
1199         struct user_auth_info *auth_info;
1200
1201         load_case_tables();
1202
1203
1204         /* set default debug level to 1 regardless of what smb.conf sets */
1205         setup_logging( "smbcacls", True );
1206         DEBUGLEVEL_CLASS[DBGC_ALL] = 1;
1207         dbf = x_stderr;
1208         x_setbuf( x_stderr, NULL );
1209         AllowDebugChange = false;
1210
1211         setlinebuf(stdout);
1212
1213         lp_load(get_dyn_CONFIGFILE(),True,False,False,True);
1214         load_interfaces();
1215
1216         auth_info = user_auth_info_init(frame);
1217         if (auth_info == NULL) {
1218                 exit(1);
1219         }
1220         popt_common_set_auth_info(auth_info);
1221
1222         pc = poptGetContext("smbcacls", argc, argv, long_options, 0);
1223
1224         poptSetOtherOptionHelp(pc, "//server1/share1 filename\nACLs look like: "
1225                 "'ACL:user:[ALLOWED|DENIED]/flags/permissions'");
1226
1227         while ((opt = poptGetNextOpt(pc)) != -1) {
1228                 switch (opt) {
1229                 case 'S':
1230                         the_acl = smb_xstrdup(poptGetOptArg(pc));
1231                         mode = SMB_ACL_SET;
1232                         break;
1233
1234                 case 'D':
1235                         the_acl = smb_xstrdup(poptGetOptArg(pc));
1236                         mode = SMB_ACL_DELETE;
1237                         break;
1238
1239                 case 'M':
1240                         the_acl = smb_xstrdup(poptGetOptArg(pc));
1241                         mode = SMB_ACL_MODIFY;
1242                         break;
1243
1244                 case 'a':
1245                         the_acl = smb_xstrdup(poptGetOptArg(pc));
1246                         mode = SMB_ACL_ADD;
1247                         break;
1248
1249                 case 'C':
1250                         owner_username = poptGetOptArg(pc);
1251                         change_mode = REQUEST_CHOWN;
1252                         break;
1253
1254                 case 'G':
1255                         owner_username = poptGetOptArg(pc);
1256                         change_mode = REQUEST_CHGRP;
1257                         break;
1258
1259                 case 'I':
1260                         owner_username = poptGetOptArg(pc);
1261                         change_mode = REQUEST_INHERIT;
1262                         break;
1263                 }
1264         }
1265
1266         /* Make connection to server */
1267         if(!poptPeekArg(pc)) {
1268                 poptPrintUsage(pc, stderr, 0);
1269                 return -1;
1270         }
1271
1272         path = talloc_strdup(frame, poptGetArg(pc));
1273         if (!path) {
1274                 return -1;
1275         }
1276
1277         if(!poptPeekArg(pc)) {
1278                 poptPrintUsage(pc, stderr, 0);
1279                 return -1;
1280         }
1281
1282         filename = talloc_strdup(frame, poptGetArg(pc));
1283         if (!filename) {
1284                 return -1;
1285         }
1286
1287         string_replace(path,'/','\\');
1288
1289         server = talloc_strdup(frame, path+2);
1290         if (!server) {
1291                 return -1;
1292         }
1293         share = strchr_m(server,'\\');
1294         if (!share) {
1295                 printf("Invalid argument: %s\n", share);
1296                 return -1;
1297         }
1298
1299         *share = 0;
1300         share++;
1301
1302         if (!test_args) {
1303                 cli = connect_one(auth_info, server, share);
1304                 if (!cli) {
1305                         exit(EXIT_FAILED);
1306                 }
1307         } else {
1308                 exit(0);
1309         }
1310
1311         string_replace(filename, '/', '\\');
1312         if (filename[0] != '\\') {
1313                 filename = talloc_asprintf(frame,
1314                                 "\\%s",
1315                                 filename);
1316                 if (!filename) {
1317                         return -1;
1318                 }
1319         }
1320
1321         /* Perform requested action */
1322
1323         if (change_mode == REQUEST_INHERIT) {
1324                 result = inherit(cli, filename, owner_username);
1325         } else if (change_mode != REQUEST_NONE) {
1326                 result = owner_set(cli, change_mode, filename, owner_username);
1327         } else if (the_acl) {
1328                 result = cacl_set(cli, filename, the_acl, mode);
1329         } else {
1330                 result = cacl_dump(cli, filename);
1331         }
1332
1333         TALLOC_FREE(frame);
1334
1335         return result;
1336 }