source: branches/samba-3.2.x/source/utils/smbcacls.c@ 228

Last change on this file since 228 was 228, checked in by Herwig Bauernfeind, 16 years ago

Update 3.2 branch to 3.2.6
File size: 26.8 KB
Line 
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
26static int test_args;
27
28#define CREATE_ACCESS_READ READ_CONTROL_ACCESS
29
30/* numeric is set when the user wants numeric SIDs and ACEs rather
31 than going via LSA calls to resolve them */
32static int numeric;
33
34enum acl_mode {SMB_ACL_SET, SMB_ACL_DELETE, SMB_ACL_MODIFY, SMB_ACL_ADD };
35enum chown_mode {REQUEST_NONE, REQUEST_CHOWN, REQUEST_CHGRP};
36enum exit_values {EXIT_OK, EXIT_FAILED, EXIT_PARSE_ERROR};
37
38struct perm_value {
39 const char *perm;
40 uint32 mask;
41};
42
43/* These values discovered by inspection */
44
45static const struct perm_value special_values[] = {
46 { "R", 0x00120089 },
47 { "W", 0x00120116 },
48 { "X", 0x001200a0 },
49 { "D", 0x00010000 },
50 { "P", 0x00040000 },
51 { "O", 0x00080000 },
52 { NULL, 0 },
53};
54
55static const struct perm_value standard_values[] = {
56 { "READ", 0x001200a9 },
57 { "CHANGE", 0x001301bf },
58 { "FULL", 0x001f01ff },
59 { NULL, 0 },
60};
61
62/* Open cli connection and policy handle */
63
64static NTSTATUS cli_lsa_lookup_sid(struct cli_state *cli,
65 const DOM_SID *sid,
66 TALLOC_CTX *mem_ctx,
67 enum lsa_SidType *type,
68 char **domain, char **name)
69{
70 uint16 orig_cnum = cli->cnum;
71 struct rpc_pipe_client *p;
72 struct policy_handle handle;
73 NTSTATUS status;
74 TALLOC_CTX *frame = talloc_stackframe();
75 enum lsa_SidType *types;
76 char **domains;
77 char **names;
78
79 if (!cli_send_tconX(cli, "IPC$", "?????", "", 0)) {
80 return cli_nt_error(cli);
81 }
82
83 p = cli_rpc_pipe_open_noauth(cli, PI_LSARPC, &status);
84 if (p == NULL) {
85 goto fail;
86 }
87
88 status = rpccli_lsa_open_policy(p, talloc_tos(), True,
89 GENERIC_EXECUTE_ACCESS, &handle);
90 if (!NT_STATUS_IS_OK(status)) {
91 goto fail;
92 }
93
94 status = rpccli_lsa_lookup_sids(p, talloc_tos(), &handle, 1, sid,
95 &domains, &names, &types);
96 if (!NT_STATUS_IS_OK(status)) {
97 goto fail;
98 }
99
100 *type = types[0];
101 *domain = talloc_move(mem_ctx, &domains[0]);
102 *name = talloc_move(mem_ctx, &names[0]);
103
104 status = NT_STATUS_OK;
105 fail:
106 if (p != NULL) {
107 cli_rpc_pipe_close(p);
108 }
109 cli_tdis(cli);
110 cli->cnum = orig_cnum;
111 TALLOC_FREE(frame);
112 return status;
113}
114
115static NTSTATUS cli_lsa_lookup_name(struct cli_state *cli,
116 const char *name,
117 enum lsa_SidType *type,
118 DOM_SID *sid)
119{
120 uint16 orig_cnum = cli->cnum;
121 struct rpc_pipe_client *p;
122 struct policy_handle handle;
123 NTSTATUS status;
124 TALLOC_CTX *frame = talloc_stackframe();
125 DOM_SID *sids;
126 enum lsa_SidType *types;
127
128 if (!cli_send_tconX(cli, "IPC$", "?????", "", 0)) {
129 return cli_nt_error(cli);
130 }
131
132 p = cli_rpc_pipe_open_noauth(cli, PI_LSARPC, &status);
133 if (p == NULL) {
134 goto fail;
135 }
136
137 status = rpccli_lsa_open_policy(p, talloc_tos(), True,
138 GENERIC_EXECUTE_ACCESS, &handle);
139 if (!NT_STATUS_IS_OK(status)) {
140 goto fail;
141 }
142
143 status = rpccli_lsa_lookup_names(p, talloc_tos(), &handle, 1, &name,
144 NULL, 1, &sids, &types);
145 if (!NT_STATUS_IS_OK(status)) {
146 goto fail;
147 }
148
149 *type = types[0];
150 *sid = sids[0];
151
152 status = NT_STATUS_OK;
153 fail:
154 if (p != NULL) {
155 cli_rpc_pipe_close(p);
156 }
157 cli_tdis(cli);
158 cli->cnum = orig_cnum;
159 TALLOC_FREE(frame);
160 return status;
161}
162
163/* convert a SID to a string, either numeric or username/group */
164static void SidToString(struct cli_state *cli, fstring str, const DOM_SID *sid)
165{
166 char *domain = NULL;
167 char *name = NULL;
168 enum lsa_SidType type;
169 NTSTATUS status;
170
171 sid_to_fstring(str, sid);
172
173 if (numeric) {
174 return;
175 }
176
177 status = cli_lsa_lookup_sid(cli, sid, talloc_tos(), &type,
178 &domain, &name);
179
180 if (!NT_STATUS_IS_OK(status)) {
181 return;
182 }
183
184 if (*domain) {
185 slprintf(str, sizeof(fstring) - 1, "%s%s%s",
186 domain, lp_winbind_separator(), name);
187 } else {
188 fstrcpy(str, name);
189 }
190}
191
192/* convert a string to a SID, either numeric or username/group */
193static bool StringToSid(struct cli_state *cli, DOM_SID *sid, const char *str)
194{
195 enum lsa_SidType type;
196
197 if (strncmp(str, "S-", 2) == 0) {
198 return string_to_sid(sid, str);
199 }
200
201 return NT_STATUS_IS_OK(cli_lsa_lookup_name(cli, str, &type, sid));
202}
203
204static void print_ace_flags(FILE *f, uint8_t flags)
205{
206 char *str = talloc_strdup(NULL, "");
207
208 if (!str) {
209 goto out;
210 }
211
212 if (flags & SEC_ACE_FLAG_OBJECT_INHERIT) {
213 str = talloc_asprintf(str, "%s%s",
214 str, "OI|");
215 if (!str) {
216 goto out;
217 }
218 }
219 if (flags & SEC_ACE_FLAG_CONTAINER_INHERIT) {
220 str = talloc_asprintf(str, "%s%s",
221 str, "CI|");
222 if (!str) {
223 goto out;
224 }
225 }
226 if (flags & SEC_ACE_FLAG_NO_PROPAGATE_INHERIT) {
227 str = talloc_asprintf(str, "%s%s",
228 str, "NP|");
229 if (!str) {
230 goto out;
231 }
232 }
233 if (flags & SEC_ACE_FLAG_INHERIT_ONLY) {
234 str = talloc_asprintf(str, "%s%s",
235 str, "IO|");
236 if (!str) {
237 goto out;
238 }
239 }
240 if (flags & SEC_ACE_FLAG_INHERITED_ACE) {
241 str = talloc_asprintf(str, "%s%s",
242 str, "I|");
243 if (!str) {
244 goto out;
245 }
246 }
247 /* Ignore define SEC_ACE_FLAG_SUCCESSFUL_ACCESS ( 0x40 )
248 and SEC_ACE_FLAG_FAILED_ACCESS ( 0x80 ) as they're
249 audit ace flags. */
250
251 if (str[strlen(str)-1] == '|') {
252 str[strlen(str)-1] = '\0';
253 fprintf(f, "/%s/", str);
254 } else {
255 fprintf(f, "/0x%x/", flags);
256 }
257 TALLOC_FREE(str);
258 return;
259
260 out:
261 fprintf(f, "/0x%x/", flags);
262}
263
264/* print an ACE on a FILE, using either numeric or ascii representation */
265static void print_ace(struct cli_state *cli, FILE *f, SEC_ACE *ace)
266{
267 const struct perm_value *v;
268 fstring sidstr;
269 int do_print = 0;
270 uint32 got_mask;
271
272 SidToString(cli, sidstr, &ace->trustee);
273
274 fprintf(f, "%s:", sidstr);
275
276 if (numeric) {
277 fprintf(f, "%d/0x%x/0x%08x",
278 ace->type, ace->flags, ace->access_mask);
279 return;
280 }
281
282 /* Ace type */
283
284 if (ace->type == SEC_ACE_TYPE_ACCESS_ALLOWED) {
285 fprintf(f, "ALLOWED");
286 } else if (ace->type == SEC_ACE_TYPE_ACCESS_DENIED) {
287 fprintf(f, "DENIED");
288 } else {
289 fprintf(f, "%d", ace->type);
290 }
291
292 print_ace_flags(f, ace->flags);
293
294 /* Standard permissions */
295
296 for (v = standard_values; v->perm; v++) {
297 if (ace->access_mask == v->mask) {
298 fprintf(f, "%s", v->perm);
299 return;
300 }
301 }
302
303 /* Special permissions. Print out a hex value if we have
304 leftover bits in the mask. */
305
306 got_mask = ace->access_mask;
307
308 again:
309 for (v = special_values; v->perm; v++) {
310 if ((ace->access_mask & v->mask) == v->mask) {
311 if (do_print) {
312 fprintf(f, "%s", v->perm);
313 }
314 got_mask &= ~v->mask;
315 }
316 }
317
318 if (!do_print) {
319 if (got_mask != 0) {
320 fprintf(f, "0x%08x", ace->access_mask);
321 } else {
322 do_print = 1;
323 goto again;
324 }
325 }
326}
327
328static bool parse_ace_flags(const char *str, unsigned int *pflags)
329{
330 const char *p = str;
331 *pflags = 0;
332
333 while (*p) {
334 if (strnequal(p, "OI", 2)) {
335 *pflags |= SEC_ACE_FLAG_OBJECT_INHERIT;
336 p += 2;
337 } else if (strnequal(p, "CI", 2)) {
338 *pflags |= SEC_ACE_FLAG_CONTAINER_INHERIT;
339 p += 2;
340 } else if (strnequal(p, "NP", 2)) {
341 *pflags |= SEC_ACE_FLAG_NO_PROPAGATE_INHERIT;
342 p += 2;
343 } else if (strnequal(p, "IO", 2)) {
344 *pflags |= SEC_ACE_FLAG_INHERIT_ONLY;
345 p += 2;
346 } else if (*p == 'I') {
347 *pflags |= SEC_ACE_FLAG_INHERITED_ACE;
348 p += 1;
349 } else if (*p) {
350 return false;
351 }
352
353 if (*p != '|' && *p != '\0') {
354 return false;
355 }
356 }
357 return true;
358}
359
360/* parse an ACE in the same format as print_ace() */
361static bool parse_ace(struct cli_state *cli, SEC_ACE *ace,
362 const char *orig_str)
363{
364 char *p;
365 const char *cp;
366 char *tok;
367 unsigned int atype = 0;
368 unsigned int aflags = 0;
369 unsigned int amask = 0;
370 DOM_SID sid;
371 SEC_ACCESS mask;
372 const struct perm_value *v;
373 char *str = SMB_STRDUP(orig_str);
374 TALLOC_CTX *frame = talloc_stackframe();
375
376 if (!str) {
377 TALLOC_FREE(frame);
378 return False;
379 }
380
381 ZERO_STRUCTP(ace);
382 p = strchr_m(str,':');
383 if (!p) {
384 printf("ACE '%s': missing ':'.\n", orig_str);
385 SAFE_FREE(str);
386 TALLOC_FREE(frame);
387 return False;
388 }
389 *p = '\0';
390 p++;
391 /* Try to parse numeric form */
392
393 if (sscanf(p, "%i/%i/%i", &atype, &aflags, &amask) == 3 &&
394 StringToSid(cli, &sid, str)) {
395 goto done;
396 }
397
398 /* Try to parse text form */
399
400 if (!StringToSid(cli, &sid, str)) {
401 printf("ACE '%s': failed to convert '%s' to SID\n",
402 orig_str, str);
403 SAFE_FREE(str);
404 TALLOC_FREE(frame);
405 return False;
406 }
407
408 cp = p;
409 if (!next_token_talloc(frame, &cp, &tok, "/")) {
410 printf("ACE '%s': failed to find '/' character.\n",
411 orig_str);
412 SAFE_FREE(str);
413 TALLOC_FREE(frame);
414 return False;
415 }
416
417 if (strncmp(tok, "ALLOWED", strlen("ALLOWED")) == 0) {
418 atype = SEC_ACE_TYPE_ACCESS_ALLOWED;
419 } else if (strncmp(tok, "DENIED", strlen("DENIED")) == 0) {
420 atype = SEC_ACE_TYPE_ACCESS_DENIED;
421 } else {
422 printf("ACE '%s': missing 'ALLOWED' or 'DENIED' entry at '%s'\n",
423 orig_str, tok);
424 SAFE_FREE(str);
425 TALLOC_FREE(frame);
426 return False;
427 }
428
429 /* Only numeric form accepted for flags at present */
430
431 if (!next_token_talloc(frame, &cp, &tok, "/")) {
432 printf("ACE '%s': bad flags entry at '%s'\n",
433 orig_str, tok);
434 SAFE_FREE(str);
435 TALLOC_FREE(frame);
436 return False;
437 }
438
439 if (tok[0] < '0' || tok[0] > '9') {
440 if (!parse_ace_flags(tok, &aflags)) {
441 printf("ACE '%s': bad named flags entry at '%s'\n",
442 orig_str, tok);
443 SAFE_FREE(str);
444 TALLOC_FREE(frame);
445 return False;
446 }
447 } else if (strnequal(tok, "0x", 2)) {
448 if (!sscanf(tok, "%x", &aflags)) {
449 printf("ACE '%s': bad hex flags entry at '%s'\n",
450 orig_str, tok);
451 SAFE_FREE(str);
452 TALLOC_FREE(frame);
453 return False;
454 }
455 } else {
456 if (!sscanf(tok, "%i", &aflags)) {
457 printf("ACE '%s': bad integer flags entry at '%s'\n",
458 orig_str, tok);
459 SAFE_FREE(str);
460 TALLOC_FREE(frame);
461 return False;
462 }
463 }
464
465 if (!next_token_talloc(frame, &cp, &tok, "/")) {
466 printf("ACE '%s': missing / at '%s'\n",
467 orig_str, tok);
468 SAFE_FREE(str);
469 TALLOC_FREE(frame);
470 return False;
471 }
472
473 if (strncmp(tok, "0x", 2) == 0) {
474 if (sscanf(tok, "%i", &amask) != 1) {
475 printf("ACE '%s': bad hex number at '%s'\n",
476 orig_str, tok);
477 SAFE_FREE(str);
478 TALLOC_FREE(frame);
479 return False;
480 }
481 goto done;
482 }
483
484 for (v = standard_values; v->perm; v++) {
485 if (strcmp(tok, v->perm) == 0) {
486 amask = v->mask;
487 goto done;
488 }
489 }
490
491 p = tok;
492
493 while(*p) {
494 bool found = False;
495
496 for (v = special_values; v->perm; v++) {
497 if (v->perm[0] == *p) {
498 amask |= v->mask;
499 found = True;
500 }
501 }
502
503 if (!found) {
504 printf("ACE '%s': bad permission value at '%s'\n",
505 orig_str, p);
506 SAFE_FREE(str);
507 TALLOC_FREE(frame);
508 return False;
509 }
510 p++;
511 }
512
513 if (*p) {
514 TALLOC_FREE(frame);
515 SAFE_FREE(str);
516 return False;
517 }
518
519 done:
520 mask = amask;
521 init_sec_ace(ace, &sid, atype, mask, aflags);
522 TALLOC_FREE(frame);
523 SAFE_FREE(str);
524 return True;
525}
526
527/* add an ACE to a list of ACEs in a SEC_ACL */
528static bool add_ace(SEC_ACL **the_acl, SEC_ACE *ace)
529{
530 SEC_ACL *new_ace;
531 SEC_ACE *aces;
532 if (! *the_acl) {
533 return (((*the_acl) = make_sec_acl(talloc_tos(), 3, 1, ace))
534 != NULL);
535 }
536
537 if (!(aces = SMB_CALLOC_ARRAY(SEC_ACE, 1+(*the_acl)->num_aces))) {
538 return False;
539 }
540 memcpy(aces, (*the_acl)->aces, (*the_acl)->num_aces * sizeof(SEC_ACE));
541 memcpy(aces+(*the_acl)->num_aces, ace, sizeof(SEC_ACE));
542 new_ace = make_sec_acl(talloc_tos(),(*the_acl)->revision,1+(*the_acl)->num_aces, aces);
543 SAFE_FREE(aces);
544 (*the_acl) = new_ace;
545 return True;
546}
547
548/* parse a ascii version of a security descriptor */
549static SEC_DESC *sec_desc_parse(TALLOC_CTX *ctx, struct cli_state *cli, char *str)
550{
551 const char *p = str;
552 char *tok;
553 SEC_DESC *ret = NULL;
554 size_t sd_size;
555 DOM_SID *grp_sid=NULL, *owner_sid=NULL;
556 SEC_ACL *dacl=NULL;
557 int revision=1;
558
559 while (next_token_talloc(ctx, &p, &tok, "\t,\r\n")) {
560 if (strncmp(tok,"REVISION:", 9) == 0) {
561 revision = strtol(tok+9, NULL, 16);
562 continue;
563 }
564
565 if (strncmp(tok,"OWNER:", 6) == 0) {
566 if (owner_sid) {
567 printf("Only specify owner once\n");
568 goto done;
569 }
570 owner_sid = SMB_CALLOC_ARRAY(DOM_SID, 1);
571 if (!owner_sid ||
572 !StringToSid(cli, owner_sid, tok+6)) {
573 printf("Failed to parse owner sid\n");
574 goto done;
575 }
576 continue;
577 }
578
579 if (strncmp(tok,"GROUP:", 6) == 0) {
580 if (grp_sid) {
581 printf("Only specify group once\n");
582 goto done;
583 }
584 grp_sid = SMB_CALLOC_ARRAY(DOM_SID, 1);
585 if (!grp_sid ||
586 !StringToSid(cli, grp_sid, tok+6)) {
587 printf("Failed to parse group sid\n");
588 goto done;
589 }
590 continue;
591 }
592
593 if (strncmp(tok,"ACL:", 4) == 0) {
594 SEC_ACE ace;
595 if (!parse_ace(cli, &ace, tok+4)) {
596 goto done;
597 }
598 if(!add_ace(&dacl, &ace)) {
599 printf("Failed to add ACL %s\n", tok);
600 goto done;
601 }
602 continue;
603 }
604
605 printf("Failed to parse token '%s' in security descriptor,\n", tok);
606 goto done;
607 }
608
609 ret = make_sec_desc(ctx,revision, SEC_DESC_SELF_RELATIVE, owner_sid, grp_sid,
610 NULL, dacl, &sd_size);
611
612 done:
613 SAFE_FREE(grp_sid);
614 SAFE_FREE(owner_sid);
615
616 return ret;
617}
618
619
620/* print a ascii version of a security descriptor on a FILE handle */
621static void sec_desc_print(struct cli_state *cli, FILE *f, SEC_DESC *sd)
622{
623 fstring sidstr;
624 uint32 i;
625
626 fprintf(f, "REVISION:%d\n", sd->revision);
627 fprintf(f, "CONTROL:0x%x\n", sd->type);
628
629 /* Print owner and group sid */
630
631 if (sd->owner_sid) {
632 SidToString(cli, sidstr, sd->owner_sid);
633 } else {
634 fstrcpy(sidstr, "");
635 }
636
637 fprintf(f, "OWNER:%s\n", sidstr);
638
639 if (sd->group_sid) {
640 SidToString(cli, sidstr, sd->group_sid);
641 } else {
642 fstrcpy(sidstr, "");
643 }
644
645 fprintf(f, "GROUP:%s\n", sidstr);
646
647 /* Print aces */
648 for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
649 SEC_ACE *ace = &sd->dacl->aces[i];
650 fprintf(f, "ACL:");
651 print_ace(cli, f, ace);
652 fprintf(f, "\n");
653 }
654
655}
656
657/*****************************************************
658dump the acls for a file
659*******************************************************/
660static int cacl_dump(struct cli_state *cli, char *filename)
661{
662 int result = EXIT_FAILED;
663 int fnum = -1;
664 SEC_DESC *sd;
665
666 if (test_args)
667 return EXIT_OK;
668
669 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
670
671 if (fnum == -1) {
672 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
673 goto done;
674 }
675
676 sd = cli_query_secdesc(cli, fnum, talloc_tos());
677
678 if (!sd) {
679 printf("ERROR: secdesc query failed: %s\n", cli_errstr(cli));
680 goto done;
681 }
682
683 sec_desc_print(cli, stdout, sd);
684
685 result = EXIT_OK;
686
687done:
688 if (fnum != -1)
689 cli_close(cli, fnum);
690
691 return result;
692}
693
694/*****************************************************
695Change the ownership or group ownership of a file. Just
696because the NT docs say this can't be done :-). JRA.
697*******************************************************/
698
699static int owner_set(struct cli_state *cli, enum chown_mode change_mode,
700 const char *filename, const char *new_username)
701{
702 int fnum;
703 DOM_SID sid;
704 SEC_DESC *sd, *old;
705 size_t sd_size;
706
707 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
708
709 if (fnum == -1) {
710 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
711 return EXIT_FAILED;
712 }
713
714 if (!StringToSid(cli, &sid, new_username))
715 return EXIT_PARSE_ERROR;
716
717 old = cli_query_secdesc(cli, fnum, talloc_tos());
718
719 cli_close(cli, fnum);
720
721 if (!old) {
722 printf("owner_set: Failed to query old descriptor\n");
723 return EXIT_FAILED;
724 }
725
726 sd = make_sec_desc(talloc_tos(),old->revision, old->type,
727 (change_mode == REQUEST_CHOWN) ? &sid : NULL,
728 (change_mode == REQUEST_CHGRP) ? &sid : NULL,
729 NULL, NULL, &sd_size);
730
731 fnum = cli_nt_create(cli, filename, WRITE_OWNER_ACCESS);
732
733 if (fnum == -1) {
734 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
735 return EXIT_FAILED;
736 }
737
738 if (!cli_set_secdesc(cli, fnum, sd)) {
739 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
740 }
741
742 cli_close(cli, fnum);
743
744 return EXIT_OK;
745}
746
747
748/* The MSDN is contradictory over the ordering of ACE entries in an
749 ACL. However NT4 gives a "The information may have been modified
750 by a computer running Windows NT 5.0" if denied ACEs do not appear
751 before allowed ACEs. At
752 http://technet.microsoft.com/en-us/library/cc781716.aspx the
753 canonical order is specified as "Explicit Deny, Explicit Allow,
754 Inherited ACEs unchanged" */
755
756static int ace_compare(SEC_ACE *ace1, SEC_ACE *ace2)
757{
758 if (sec_ace_equal(ace1, ace2))
759 return 0;
760
761 if ((ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
762 !(ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
763 return 1;
764 if (!(ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
765 (ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
766 return -1;
767 if ((ace1->flags & SEC_ACE_FLAG_INHERITED_ACE) &&
768 (ace2->flags & SEC_ACE_FLAG_INHERITED_ACE))
769 return ace1 - ace2;
770
771 if (ace1->type != ace2->type)
772 return ace2->type - ace1->type;
773
774 if (sid_compare(&ace1->trustee, &ace2->trustee))
775 return sid_compare(&ace1->trustee, &ace2->trustee);
776
777 if (ace1->flags != ace2->flags)
778 return ace1->flags - ace2->flags;
779
780 if (ace1->access_mask != ace2->access_mask)
781 return ace1->access_mask - ace2->access_mask;
782
783 if (ace1->size != ace2->size)
784 return ace1->size - ace2->size;
785
786 return memcmp(ace1, ace2, sizeof(SEC_ACE));
787}
788
789static void sort_acl(SEC_ACL *the_acl)
790{
791 uint32 i;
792 if (!the_acl) return;
793
794 qsort(the_acl->aces, the_acl->num_aces, sizeof(the_acl->aces[0]), QSORT_CAST ace_compare);
795
796 for (i=1;i<the_acl->num_aces;) {
797 if (sec_ace_equal(&the_acl->aces[i-1], &the_acl->aces[i])) {
798 int j;
799 for (j=i; j<the_acl->num_aces-1; j++) {
800 the_acl->aces[j] = the_acl->aces[j+1];
801 }
802 the_acl->num_aces--;
803 } else {
804 i++;
805 }
806 }
807}
808
809/*****************************************************
810set the ACLs on a file given an ascii description
811*******************************************************/
812
813static int cacl_set(struct cli_state *cli, char *filename,
814 char *the_acl, enum acl_mode mode)
815{
816 int fnum;
817 SEC_DESC *sd, *old;
818 uint32 i, j;
819 size_t sd_size;
820 int result = EXIT_OK;
821
822 sd = sec_desc_parse(talloc_tos(), cli, the_acl);
823
824 if (!sd) return EXIT_PARSE_ERROR;
825 if (test_args) return EXIT_OK;
826
827 /* The desired access below is the only one I could find that works
828 with NT4, W2KP and Samba */
829
830 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
831
832 if (fnum == -1) {
833 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
834 return EXIT_FAILED;
835 }
836
837 old = cli_query_secdesc(cli, fnum, talloc_tos());
838
839 if (!old) {
840 printf("calc_set: Failed to query old descriptor\n");
841 return EXIT_FAILED;
842 }
843
844 cli_close(cli, fnum);
845
846 /* the logic here is rather more complex than I would like */
847 switch (mode) {
848 case SMB_ACL_DELETE:
849 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
850 bool found = False;
851
852 for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
853 if (sec_ace_equal(&sd->dacl->aces[i],
854 &old->dacl->aces[j])) {
855 uint32 k;
856 for (k=j; k<old->dacl->num_aces-1;k++) {
857 old->dacl->aces[k] = old->dacl->aces[k+1];
858 }
859 old->dacl->num_aces--;
860 found = True;
861 break;
862 }
863 }
864
865 if (!found) {
866 printf("ACL for ACE:");
867 print_ace(cli, stdout, &sd->dacl->aces[i]);
868 printf(" not found\n");
869 }
870 }
871 break;
872
873 case SMB_ACL_MODIFY:
874 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
875 bool found = False;
876
877 for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
878 if (sid_equal(&sd->dacl->aces[i].trustee,
879 &old->dacl->aces[j].trustee)) {
880 old->dacl->aces[j] = sd->dacl->aces[i];
881 found = True;
882 }
883 }
884
885 if (!found) {
886 fstring str;
887
888 SidToString(cli, str,
889 &sd->dacl->aces[i].trustee);
890 printf("ACL for SID %s not found\n", str);
891 }
892 }
893
894 if (sd->owner_sid) {
895 old->owner_sid = sd->owner_sid;
896 }
897
898 if (sd->group_sid) {
899 old->group_sid = sd->group_sid;
900 }
901
902 break;
903
904 case SMB_ACL_ADD:
905 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
906 add_ace(&old->dacl, &sd->dacl->aces[i]);
907 }
908 break;
909
910 case SMB_ACL_SET:
911 old = sd;
912 break;
913 }
914
915 /* Denied ACE entries must come before allowed ones */
916 sort_acl(old->dacl);
917
918 /* Create new security descriptor and set it */
919
920 /* We used to just have "WRITE_DAC_ACCESS" without WRITE_OWNER.
921 But if we're sending an owner, even if it's the same as the one
922 that already exists then W2K3 insists we open with WRITE_OWNER access.
923 I need to check that setting a SD with no owner set works against WNT
924 and W2K. JRA.
925 */
926
927 sd = make_sec_desc(talloc_tos(),old->revision, old->type,
928 old->owner_sid, old->group_sid,
929 NULL, old->dacl, &sd_size);
930
931 fnum = cli_nt_create(cli, filename, WRITE_DAC_ACCESS|WRITE_OWNER_ACCESS);
932
933 if (fnum == -1) {
934 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
935 return EXIT_FAILED;
936 }
937
938 if (!cli_set_secdesc(cli, fnum, sd)) {
939 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
940 result = EXIT_FAILED;
941 }
942
943 /* Clean up */
944
945 cli_close(cli, fnum);
946
947 return result;
948}
949
950
951/*****************************************************
952 Return a connection to a server.
953*******************************************************/
954static struct cli_state *connect_one(const char *server, const char *share)
955{
956 struct cli_state *c = NULL;
957 struct sockaddr_storage ss;
958 NTSTATUS nt_status;
959 uint32_t flags = 0;
960
961 zero_sockaddr(&ss);
962
963 if (get_cmdline_auth_info_use_kerberos()) {
964 flags |= CLI_FULL_CONNECTION_USE_KERBEROS |
965 CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
966 }
967
968 if (get_cmdline_auth_info_use_machine_account() &&
969 !set_cmdline_auth_info_machine_account_creds()) {
970 return NULL;
971 }
972
973 if (!get_cmdline_auth_info_got_pass()) {
974 char *pass = getpass("Password: ");
975 if (pass) {
976 set_cmdline_auth_info_password(pass);
977 }
978 }
979
980 nt_status = cli_full_connection(&c, global_myname(), server,
981 &ss, 0,
982 share, "?????",
983 get_cmdline_auth_info_username(),
984 lp_workgroup(),
985 get_cmdline_auth_info_password(),
986 flags,
987 get_cmdline_auth_info_signing_state(),
988 NULL);
989 if (!NT_STATUS_IS_OK(nt_status)) {
990 DEBUG(0,("cli_full_connection failed! (%s)\n", nt_errstr(nt_status)));
991 return NULL;
992 }
993
994 if (get_cmdline_auth_info_smb_encrypt()) {
995 nt_status = cli_cm_force_encryption(c,
996 get_cmdline_auth_info_username(),
997 get_cmdline_auth_info_password(),
998 lp_workgroup(),
999 share);
1000 if (!NT_STATUS_IS_OK(nt_status)) {
1001 cli_shutdown(c);
1002 c = NULL;
1003 }
1004 }
1005
1006 return c;
1007}
1008
1009/****************************************************************************
1010 main program
1011****************************************************************************/
1012 int main(int argc, const char *argv[])
1013{
1014 char *share;
1015 int opt;
1016 enum acl_mode mode = SMB_ACL_SET;
1017 static char *the_acl = NULL;
1018 enum chown_mode change_mode = REQUEST_NONE;
1019 int result;
1020 char *path;
1021 char *filename = NULL;
1022 poptContext pc;
1023 struct poptOption long_options[] = {
1024 POPT_AUTOHELP
1025 { "delete", 'D', POPT_ARG_STRING, NULL, 'D', "Delete an acl", "ACL" },
1026 { "modify", 'M', POPT_ARG_STRING, NULL, 'M', "Modify an acl", "ACL" },
1027 { "add", 'a', POPT_ARG_STRING, NULL, 'a', "Add an acl", "ACL" },
1028 { "set", 'S', POPT_ARG_STRING, NULL, 'S', "Set acls", "ACLS" },
1029 { "chown", 'C', POPT_ARG_STRING, NULL, 'C', "Change ownership of a file", "USERNAME" },
1030 { "chgrp", 'G', POPT_ARG_STRING, NULL, 'G', "Change group ownership of a file", "GROUPNAME" },
1031 { "numeric", 0, POPT_ARG_NONE, &numeric, 1, "Don't resolve sids or masks to names" },
1032 { "test-args", 't', POPT_ARG_NONE, &test_args, 1, "Test arguments"},
1033 POPT_COMMON_SAMBA
1034 POPT_COMMON_CONNECTION
1035 POPT_COMMON_CREDENTIALS
1036 POPT_TABLEEND
1037 };
1038
1039 struct cli_state *cli;
1040 TALLOC_CTX *frame = talloc_stackframe();
1041 const char *owner_username = "";
1042 char *server;
1043
1044 load_case_tables();
1045
1046
1047 /* set default debug level to 1 regardless of what smb.conf sets */
1048 setup_logging( "smbcacls", True );
1049 DEBUGLEVEL_CLASS[DBGC_ALL] = 1;
1050 dbf = x_stderr;
1051 x_setbuf( x_stderr, NULL );
1052
1053 setlinebuf(stdout);
1054
1055 lp_load(get_dyn_CONFIGFILE(),True,False,False,True);
1056 load_interfaces();
1057
1058 pc = poptGetContext("smbcacls", argc, argv, long_options, 0);
1059
1060 poptSetOtherOptionHelp(pc, "//server1/share1 filename\nACLs look like: "
1061 "'ACL:user:[ALLOWED|DENIED]/flags/permissions'");
1062
1063 while ((opt = poptGetNextOpt(pc)) != -1) {
1064 switch (opt) {
1065 case 'S':
1066 the_acl = smb_xstrdup(poptGetOptArg(pc));
1067 mode = SMB_ACL_SET;
1068 break;
1069
1070 case 'D':
1071 the_acl = smb_xstrdup(poptGetOptArg(pc));
1072 mode = SMB_ACL_DELETE;
1073 break;
1074
1075 case 'M':
1076 the_acl = smb_xstrdup(poptGetOptArg(pc));
1077 mode = SMB_ACL_MODIFY;
1078 break;
1079
1080 case 'a':
1081 the_acl = smb_xstrdup(poptGetOptArg(pc));
1082 mode = SMB_ACL_ADD;
1083 break;
1084
1085 case 'C':
1086 owner_username = poptGetOptArg(pc);
1087 change_mode = REQUEST_CHOWN;
1088 break;
1089
1090 case 'G':
1091 owner_username = poptGetOptArg(pc);
1092 change_mode = REQUEST_CHGRP;
1093 break;
1094 }
1095 }
1096
1097 /* Make connection to server */
1098 if(!poptPeekArg(pc)) {
1099 poptPrintUsage(pc, stderr, 0);
1100 return -1;
1101 }
1102
1103 path = talloc_strdup(frame, poptGetArg(pc));
1104 if (!path) {
1105 return -1;
1106 }
1107
1108 if(!poptPeekArg(pc)) {
1109 poptPrintUsage(pc, stderr, 0);
1110 return -1;
1111 }
1112
1113 filename = talloc_strdup(frame, poptGetArg(pc));
1114 if (!filename) {
1115 return -1;
1116 }
1117
1118 string_replace(path,'/','\\');
1119
1120 server = talloc_strdup(frame, path+2);
1121 if (!server) {
1122 return -1;
1123 }
1124 share = strchr_m(server,'\\');
1125 if (!share) {
1126 printf("Invalid argument: %s\n", share);
1127 return -1;
1128 }
1129
1130 *share = 0;
1131 share++;
1132
1133 if (!test_args) {
1134 cli = connect_one(server, share);
1135 if (!cli) {
1136 exit(EXIT_FAILED);
1137 }
1138 } else {
1139 exit(0);
1140 }
1141
1142 string_replace(filename, '/', '\\');
1143 if (filename[0] != '\\') {
1144 filename = talloc_asprintf(frame,
1145 "\\%s",
1146 filename);
1147 if (!filename) {
1148 return -1;
1149 }
1150 }
1151
1152 /* Perform requested action */
1153
1154 if (change_mode != REQUEST_NONE) {
1155 result = owner_set(cli, change_mode, filename, owner_username);
1156 } else if (the_acl) {
1157 result = cacl_set(cli, filename, the_acl, mode);
1158 } else {
1159 result = cacl_dump(cli, filename);
1160 }
1161
1162 TALLOC_FREE(frame);
1163
1164 return result;
1165}
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