2 Unix SMB/CIFS implementation.
5 Copyright (C) Andrew Tridgell 2000
6 Copyright (C) Tim Potter 2000
7 Copyright (C) Jeremy Allison 2000
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 static fstring password
;
27 static pstring username
;
28 static pstring owner_username
;
29 static fstring server
;
32 static TALLOC_CTX
*ctx
;
34 #define CREATE_ACCESS_READ READ_CONTROL_ACCESS
35 #define CREATE_ACCESS_WRITE (WRITE_DAC_ACCESS | WRITE_OWNER_ACCESS)
37 /* numeric is set when the user wants numeric SIDs and ACEs rather
38 than going via LSA calls to resolve them */
41 enum acl_mode
{SMB_ACL_SET
, SMB_ACL_DELETE
, SMB_ACL_MODIFY
, SMB_ACL_ADD
};
42 enum chown_mode
{REQUEST_NONE
, REQUEST_CHOWN
, REQUEST_CHGRP
};
43 enum exit_values
{EXIT_OK
, EXIT_FAILED
, EXIT_PARSE_ERROR
};
45 extern pstring global_myname
;
46 extern fstring global_myworkgroup
;
53 /* These values discovered by inspection */
55 static struct perm_value special_values
[] = {
65 static struct perm_value standard_values
[] = {
66 { "READ", 0x001200a9 },
67 { "CHANGE", 0x001301bf },
68 { "FULL", 0x001f01ff },
72 static struct cli_state
*global_hack_cli
;
73 static POLICY_HND pol
;
74 static BOOL got_policy_hnd
;
76 static struct cli_state
*connect_one(char *share
);
78 /* Open cli connection and policy handle */
80 static BOOL
cacls_open_policy_hnd(void)
82 /* Initialise cli LSA connection */
84 if (!global_hack_cli
) {
85 global_hack_cli
= connect_one("IPC$");
86 if (!cli_nt_session_open (global_hack_cli
, PIPE_LSARPC
)) {
91 /* Open policy handle */
93 if (!got_policy_hnd
) {
95 /* Some systems don't support SEC_RIGHTS_MAXIMUM_ALLOWED,
96 but NT sends 0x2000000 so we might as well do it too. */
98 if (!NT_STATUS_IS_OK(cli_lsa_open_policy(global_hack_cli
, global_hack_cli
->mem_ctx
, True
,
99 GENERIC_EXECUTE_ACCESS
, &pol
))) {
103 got_policy_hnd
= True
;
109 /* convert a SID to a string, either numeric or username/group */
110 static void SidToString(fstring str
, DOM_SID
*sid
)
112 char **domains
= NULL
;
114 uint32
*types
= NULL
;
116 sid_to_string(str
, sid
);
120 /* Ask LSA to convert the sid to a name */
122 if (!cacls_open_policy_hnd() ||
123 !NT_STATUS_IS_OK(cli_lsa_lookup_sids(global_hack_cli
, global_hack_cli
->mem_ctx
,
124 &pol
, 1, sid
, &domains
,
126 !domains
|| !domains
[0] || !names
|| !names
[0]) {
132 slprintf(str
, sizeof(fstring
) - 1, "%s%s%s",
133 domains
[0], lp_winbind_separator(),
138 /* convert a string to a SID, either numeric or username/group */
139 static BOOL
StringToSid(DOM_SID
*sid
, const char *str
)
141 uint32
*types
= NULL
;
142 DOM_SID
*sids
= NULL
;
145 if (strncmp(str
, "S-", 2) == 0) {
146 return string_to_sid(sid
, str
);
149 if (!cacls_open_policy_hnd() ||
150 !NT_STATUS_IS_OK(cli_lsa_lookup_names(global_hack_cli
, global_hack_cli
->mem_ctx
,
151 &pol
, 1, &str
, &sids
,
157 sid_copy(sid
, &sids
[0]);
164 /* print an ACE on a FILE, using either numeric or ascii representation */
165 static void print_ace(FILE *f
, SEC_ACE
*ace
)
167 struct perm_value
*v
;
172 SidToString(sidstr
, &ace
->trustee
);
174 fprintf(f
, "%s:", sidstr
);
177 fprintf(f
, "%d/%d/0x%08x",
178 ace
->type
, ace
->flags
, ace
->info
.mask
);
184 if (ace
->type
== SEC_ACE_TYPE_ACCESS_ALLOWED
) {
185 fprintf(f
, "ALLOWED");
186 } else if (ace
->type
== SEC_ACE_TYPE_ACCESS_DENIED
) {
187 fprintf(f
, "DENIED");
189 fprintf(f
, "%d", ace
->type
);
192 /* Not sure what flags can be set in a file ACL */
194 fprintf(f
, "/%d/", ace
->flags
);
196 /* Standard permissions */
198 for (v
= standard_values
; v
->perm
; v
++) {
199 if (ace
->info
.mask
== v
->mask
) {
200 fprintf(f
, "%s", v
->perm
);
205 /* Special permissions. Print out a hex value if we have
206 leftover bits in the mask. */
208 got_mask
= ace
->info
.mask
;
211 for (v
= special_values
; v
->perm
; v
++) {
212 if ((ace
->info
.mask
& v
->mask
) == v
->mask
) {
214 fprintf(f
, "%s", v
->perm
);
216 got_mask
&= ~v
->mask
;
222 fprintf(f
, "0x%08x", ace
->info
.mask
);
231 /* parse an ACE in the same format as print_ace() */
232 static BOOL
parse_ace(SEC_ACE
*ace
, char *str
)
236 unsigned atype
, aflags
, amask
;
239 struct perm_value
*v
;
242 p
= strchr_m(str
,':');
243 if (!p
) return False
;
247 /* Try to parse numeric form */
249 if (sscanf(p
, "%i/%i/%i", &atype
, &aflags
, &amask
) == 3 &&
250 StringToSid(&sid
, str
)) {
254 /* Try to parse text form */
256 if (!StringToSid(&sid
, str
)) {
260 if (!next_token(&p
, tok
, "/", sizeof(fstring
))) {
264 if (strncmp(tok
, "ALLOWED", strlen("ALLOWED")) == 0) {
265 atype
= SEC_ACE_TYPE_ACCESS_ALLOWED
;
266 } else if (strncmp(tok
, "DENIED", strlen("DENIED")) == 0) {
267 atype
= SEC_ACE_TYPE_ACCESS_DENIED
;
272 /* Only numeric form accepted for flags at present */
274 if (!(next_token(&p
, tok
, "/", sizeof(fstring
)) &&
275 sscanf(tok
, "%i", &aflags
))) {
279 if (!next_token(&p
, tok
, "/", sizeof(fstring
))) {
283 if (strncmp(tok
, "0x", 2) == 0) {
284 if (sscanf(tok
, "%i", &amask
) != 1) {
290 for (v
= standard_values
; v
->perm
; v
++) {
291 if (strcmp(tok
, v
->perm
) == 0) {
302 for (v
= special_values
; v
->perm
; v
++) {
303 if (v
->perm
[0] == *p
) {
309 if (!found
) return False
;
319 init_sec_ace(ace
, &sid
, atype
, mask
, aflags
);
323 /* add an ACE to a list of ACEs in a SEC_ACL */
324 static BOOL
add_ace(SEC_ACL
**the_acl
, SEC_ACE
*ace
)
329 (*the_acl
) = make_sec_acl(ctx
, 3, 1, ace
);
333 aces
= calloc(1+(*the_acl
)->num_aces
,sizeof(SEC_ACE
));
334 memcpy(aces
, (*the_acl
)->ace
, (*the_acl
)->num_aces
* sizeof(SEC_ACE
));
335 memcpy(aces
+(*the_acl
)->num_aces
, ace
, sizeof(SEC_ACE
));
336 new = make_sec_acl(ctx
,(*the_acl
)->revision
,1+(*the_acl
)->num_aces
, aces
);
342 /* parse a ascii version of a security descriptor */
343 static SEC_DESC
*sec_desc_parse(char *str
)
349 DOM_SID
*grp_sid
=NULL
, *owner_sid
=NULL
;
353 while (next_token(&p
, tok
, "\t,\r\n", sizeof(tok
))) {
355 if (strncmp(tok
,"REVISION:", 9) == 0) {
356 revision
= strtol(tok
+9, NULL
, 16);
360 if (strncmp(tok
,"OWNER:", 6) == 0) {
361 owner_sid
= (DOM_SID
*)calloc(1, sizeof(DOM_SID
));
363 !StringToSid(owner_sid
, tok
+6)) {
364 printf("Failed to parse owner sid\n");
370 if (strncmp(tok
,"GROUP:", 6) == 0) {
371 grp_sid
= (DOM_SID
*)calloc(1, sizeof(DOM_SID
));
373 !StringToSid(grp_sid
, tok
+6)) {
374 printf("Failed to parse group sid\n");
380 if (strncmp(tok
,"ACL:", 4) == 0) {
382 if (!parse_ace(&ace
, tok
+4)) {
383 printf("Failed to parse ACL %s\n", tok
);
386 if(!add_ace(&dacl
, &ace
)) {
387 printf("Failed to add ACL %s\n", tok
);
393 printf("Failed to parse security descriptor\n");
397 ret
= make_sec_desc(ctx
,revision
, owner_sid
, grp_sid
,
398 NULL
, dacl
, &sd_size
);
401 SAFE_FREE(owner_sid
);
407 /* print a ascii version of a security descriptor on a FILE handle */
408 static void sec_desc_print(FILE *f
, SEC_DESC
*sd
)
413 printf("REVISION:%d\n", sd
->revision
);
415 /* Print owner and group sid */
418 SidToString(sidstr
, sd
->owner_sid
);
423 printf("OWNER:%s\n", sidstr
);
426 SidToString(sidstr
, sd
->grp_sid
);
431 fprintf(f
, "GROUP:%s\n", sidstr
);
434 for (i
= 0; sd
->dacl
&& i
< sd
->dacl
->num_aces
; i
++) {
435 SEC_ACE
*ace
= &sd
->dacl
->ace
[i
];
443 /*****************************************************
444 dump the acls for a file
445 *******************************************************/
446 static int cacl_dump(struct cli_state
*cli
, char *filename
)
451 if (test_args
) return EXIT_OK
;
453 fnum
= cli_nt_create(cli
, filename
, CREATE_ACCESS_READ
);
455 printf("Failed to open %s: %s\n", filename
, cli_errstr(cli
));
459 sd
= cli_query_secdesc(cli
, fnum
, ctx
);
462 printf("ERROR: secdesc query failed: %s\n", cli_errstr(cli
));
466 sec_desc_print(stdout
, sd
);
468 cli_close(cli
, fnum
);
473 /*****************************************************
474 Change the ownership or group ownership of a file. Just
475 because the NT docs say this can't be done :-). JRA.
476 *******************************************************/
478 static int owner_set(struct cli_state
*cli
, enum chown_mode change_mode
,
479 char *filename
, char *new_username
)
486 fnum
= cli_nt_create(cli
, filename
, CREATE_ACCESS_READ
);
489 printf("Failed to open %s: %s\n", filename
, cli_errstr(cli
));
493 if (!StringToSid(&sid
, new_username
))
494 return EXIT_PARSE_ERROR
;
496 old
= cli_query_secdesc(cli
, fnum
, ctx
);
498 cli_close(cli
, fnum
);
501 printf("owner_set: Failed to query old descriptor\n");
505 sd
= make_sec_desc(ctx
,old
->revision
,
506 (change_mode
== REQUEST_CHOWN
) ? &sid
: old
->owner_sid
,
507 (change_mode
== REQUEST_CHGRP
) ? &sid
: old
->grp_sid
,
508 NULL
, old
->dacl
, &sd_size
);
510 fnum
= cli_nt_create(cli
, filename
, CREATE_ACCESS_WRITE
);
513 printf("Failed to open %s: %s\n", filename
, cli_errstr(cli
));
517 if (!cli_set_secdesc(cli
, fnum
, sd
)) {
518 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli
));
521 cli_close(cli
, fnum
);
527 /* The MSDN is contradictory over the ordering of ACE entries in an ACL.
528 However NT4 gives a "The information may have been modified by a
529 computer running Windows NT 5.0" if denied ACEs do not appear before
532 static int ace_compare(SEC_ACE
*ace1
, SEC_ACE
*ace2
)
534 if (sec_ace_equal(ace1
, ace2
))
537 if (ace1
->type
!= ace2
->type
)
538 return ace2
->type
- ace1
->type
;
540 if (sid_compare(&ace1
->trustee
, &ace2
->trustee
))
541 return sid_compare(&ace1
->trustee
, &ace2
->trustee
);
543 if (ace1
->flags
!= ace2
->flags
)
544 return ace1
->flags
- ace2
->flags
;
546 if (ace1
->info
.mask
!= ace2
->info
.mask
)
547 return ace1
->info
.mask
- ace2
->info
.mask
;
549 if (ace1
->size
!= ace2
->size
)
550 return ace1
->size
- ace2
->size
;
552 return memcmp(ace1
, ace2
, sizeof(SEC_ACE
));
555 static void sort_acl(SEC_ACL
*the_acl
)
558 if (!the_acl
) return;
560 qsort(the_acl
->ace
, the_acl
->num_aces
, sizeof(the_acl
->ace
[0]), QSORT_CAST ace_compare
);
562 for (i
=1;i
<the_acl
->num_aces
;) {
563 if (sec_ace_equal(&the_acl
->ace
[i
-1], &the_acl
->ace
[i
])) {
565 for (j
=i
; j
<the_acl
->num_aces
-1; j
++) {
566 the_acl
->ace
[j
] = the_acl
->ace
[j
+1];
575 /*****************************************************
576 set the ACLs on a file given an ascii description
577 *******************************************************/
578 static int cacl_set(struct cli_state
*cli
, char *filename
,
579 char *the_acl
, enum acl_mode mode
)
585 int result
= EXIT_OK
;
587 sd
= sec_desc_parse(the_acl
);
589 if (!sd
) return EXIT_PARSE_ERROR
;
590 if (test_args
) return EXIT_OK
;
592 /* The desired access below is the only one I could find that works
593 with NT4, W2KP and Samba */
595 fnum
= cli_nt_create(cli
, filename
, CREATE_ACCESS_READ
);
598 printf("cacl_set failed to open %s: %s\n", filename
, cli_errstr(cli
));
602 old
= cli_query_secdesc(cli
, fnum
, ctx
);
605 printf("calc_set: Failed to query old descriptor\n");
609 cli_close(cli
, fnum
);
611 /* the logic here is rather more complex than I would like */
614 for (i
=0;sd
->dacl
&& i
<sd
->dacl
->num_aces
;i
++) {
617 for (j
=0;old
->dacl
&& j
<old
->dacl
->num_aces
;j
++) {
618 if (sec_ace_equal(&sd
->dacl
->ace
[i
],
619 &old
->dacl
->ace
[j
])) {
621 for (k
=j
; k
<old
->dacl
->num_aces
-1;k
++) {
622 old
->dacl
->ace
[k
] = old
->dacl
->ace
[k
+1];
624 old
->dacl
->num_aces
--;
625 if (old
->dacl
->num_aces
== 0) {
626 SAFE_FREE(old
->dacl
->ace
);
627 SAFE_FREE(old
->dacl
);
636 printf("ACL for ACE:");
637 print_ace(stdout
, &sd
->dacl
->ace
[i
]);
638 printf(" not found\n");
644 for (i
=0;sd
->dacl
&& i
<sd
->dacl
->num_aces
;i
++) {
647 for (j
=0;old
->dacl
&& j
<old
->dacl
->num_aces
;j
++) {
648 if (sid_equal(&sd
->dacl
->ace
[i
].trustee
,
649 &old
->dacl
->ace
[j
].trustee
)) {
650 old
->dacl
->ace
[j
] = sd
->dacl
->ace
[i
];
658 SidToString(str
, &sd
->dacl
->ace
[i
].trustee
);
659 printf("ACL for SID %s not found\n", str
);
666 for (i
=0;sd
->dacl
&& i
<sd
->dacl
->num_aces
;i
++) {
667 add_ace(&old
->dacl
, &sd
->dacl
->ace
[i
]);
676 /* Denied ACE entries must come before allowed ones */
679 /* Create new security descriptor and set it */
680 sd
= make_sec_desc(ctx
,old
->revision
, old
->owner_sid
, old
->grp_sid
,
681 NULL
, old
->dacl
, &sd_size
);
683 fnum
= cli_nt_create(cli
, filename
, CREATE_ACCESS_WRITE
);
686 printf("cacl_set failed to open %s: %s\n", filename
, cli_errstr(cli
));
690 if (!cli_set_secdesc(cli
, fnum
, sd
)) {
691 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli
));
692 result
= EXIT_FAILED
;
697 cli_close(cli
, fnum
);
703 /*****************************************************
704 return a connection to a server
705 *******************************************************/
706 static struct cli_state
*connect_one(char *share
)
714 char *pass
= getpass("Password: ");
716 pstrcpy(password
, pass
);
721 if (NT_STATUS_IS_OK(nt_status
= cli_full_connection(&c
, global_myname
, server
,
724 username
, global_myworkgroup
,
728 DEBUG(0,("cli_full_connection failed! (%s)\n", nt_errstr(nt_status
)));
734 static void usage(void)
737 "Usage: smbcacls //server1/share1 filename [options]\n\
739 \t-D <acls> delete an acl\n\
740 \t-M <acls> modify an acl\n\
741 \t-A <acls> add an acl\n\
742 \t-S <acls> set acls\n\
743 \t-C username change ownership of a file\n\
744 \t-G username change group ownership of a file\n\
745 \t-n don't resolve sids or masks to names\n\
747 \t-d debuglevel set debug output level\n\
748 \t-U username user to autheticate as\n\
750 The username can be of the form username%%password or\n\
751 workgroup\\username%%password.\n\n\
752 An acl is of the form ACL:<SID>:type/flags/mask\n\
753 You can string acls together with spaces, commas or newlines\n\
757 /****************************************************************************
759 ****************************************************************************/
760 int main(int argc
,char *argv
[])
768 enum acl_mode mode
= SMB_ACL_SET
;
769 char *the_acl
= NULL
;
770 enum chown_mode change_mode
= REQUEST_NONE
;
773 struct cli_state
*cli
;
781 if (argc
< 3 || argv
[1][0] == '-') {
784 exit(EXIT_PARSE_ERROR
);
787 setup_logging(argv
[0],True
);
790 pstrcpy(filename
, argv
[2]);
791 all_string_sub(share
,"/","\\",0);
796 lp_load(dyn_CONFIGFILE
,True
,False
,False
);
799 if (getenv("USER")) {
800 pstrcpy(username
,getenv("USER"));
802 if ((p
=strchr_m(username
,'%'))) {
804 pstrcpy(password
,p
+1);
806 memset(strchr_m(getenv("USER"), '%') + 1, 'X',
811 while ((opt
= getopt(argc
, argv
, "U:nhS:D:A:M:C:G:td:")) != EOF
) {
814 pstrcpy(username
,optarg
);
815 p
= strchr_m(username
,'%');
818 pstrcpy(password
, p
+1);
830 mode
= SMB_ACL_DELETE
;
835 mode
= SMB_ACL_MODIFY
;
844 pstrcpy(owner_username
,optarg
);
845 change_mode
= REQUEST_CHOWN
;
849 pstrcpy(owner_username
,optarg
);
850 change_mode
= REQUEST_CHGRP
;
864 exit(EXIT_PARSE_ERROR
);
867 DEBUGLEVEL
= atoi(optarg
);
871 printf("Unknown option %c (%d)\n", (char)opt
, opt
);
873 exit(EXIT_PARSE_ERROR
);
883 exit(EXIT_PARSE_ERROR
);
886 /* Make connection to server */
888 fstrcpy(server
,share
+2);
889 share
= strchr_m(server
,'\\');
891 share
= strchr_m(server
,'/');
901 cli
= connect_one(share
);
910 all_string_sub(filename
, "/", "\\", 0);
911 if (filename
[0] != '\\') {
914 safe_strcpy(&s
[1], filename
, sizeof(pstring
)-1);
915 pstrcpy(filename
, s
);
918 /* Perform requested action */
920 if (change_mode
!= REQUEST_NONE
) {
921 result
= owner_set(cli
, change_mode
, filename
, owner_username
);
922 } else if (the_acl
) {
923 result
= cacl_set(cli
, filename
, the_acl
, mode
);
925 result
= cacl_dump(cli
, filename
);