2 Unix SMB/CIFS implementation.
5 Copyright (C) Andrew Tridgell 2000
6 Copyright (C) Tim Potter 2000
7 Copyright (C) Jeremy Allison 2000
8 Copyright (C) Jelmer Vernooij 2003
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 2 of the License, or
13 (at your option) any later version.
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.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 static pstring owner_username
;
28 static fstring server
;
29 static int test_args
= False
;
30 static TALLOC_CTX
*ctx
;
32 #define CREATE_ACCESS_READ READ_CONTROL_ACCESS
34 /* numeric is set when the user wants numeric SIDs and ACEs rather
35 than going via LSA calls to resolve them */
36 static BOOL numeric
= False
;
38 enum acl_mode
{SMB_ACL_SET
, SMB_ACL_DELETE
, SMB_ACL_MODIFY
, SMB_ACL_ADD
};
39 enum chown_mode
{REQUEST_NONE
, REQUEST_CHOWN
, REQUEST_CHGRP
};
40 enum exit_values
{EXIT_OK
, EXIT_FAILED
, EXIT_PARSE_ERROR
};
47 /* These values discovered by inspection */
49 static const struct perm_value special_values
[] = {
59 static const struct perm_value standard_values
[] = {
60 { "READ", 0x001200a9 },
61 { "CHANGE", 0x001301bf },
62 { "FULL", 0x001f01ff },
66 static struct cli_state
*global_hack_cli
;
67 static POLICY_HND pol
;
68 static BOOL got_policy_hnd
;
70 static struct cli_state
*connect_one(const char *share
);
72 /* Open cli connection and policy handle */
74 static BOOL
cacls_open_policy_hnd(void)
76 /* Initialise cli LSA connection */
78 if (!global_hack_cli
) {
79 global_hack_cli
= connect_one("IPC$");
80 if (!cli_nt_session_open (global_hack_cli
, PI_LSARPC
)) {
85 /* Open policy handle */
87 if (!got_policy_hnd
) {
89 /* Some systems don't support SEC_RIGHTS_MAXIMUM_ALLOWED,
90 but NT sends 0x2000000 so we might as well do it too. */
92 if (!NT_STATUS_IS_OK(cli_lsa_open_policy(global_hack_cli
, global_hack_cli
->mem_ctx
, True
,
93 GENERIC_EXECUTE_ACCESS
, &pol
))) {
97 got_policy_hnd
= True
;
103 /* convert a SID to a string, either numeric or username/group */
104 static void SidToString(fstring str
, DOM_SID
*sid
)
106 char **domains
= NULL
;
108 uint32
*types
= NULL
;
110 sid_to_string(str
, sid
);
114 /* Ask LSA to convert the sid to a name */
116 if (!cacls_open_policy_hnd() ||
117 !NT_STATUS_IS_OK(cli_lsa_lookup_sids(global_hack_cli
, global_hack_cli
->mem_ctx
,
118 &pol
, 1, sid
, &domains
,
120 !domains
|| !domains
[0] || !names
|| !names
[0]) {
126 slprintf(str
, sizeof(fstring
) - 1, "%s%s%s",
127 domains
[0], lp_winbind_separator(),
132 /* convert a string to a SID, either numeric or username/group */
133 static BOOL
StringToSid(DOM_SID
*sid
, const char *str
)
135 uint32
*types
= NULL
;
136 DOM_SID
*sids
= NULL
;
139 if (strncmp(str
, "S-", 2) == 0) {
140 return string_to_sid(sid
, str
);
143 if (!cacls_open_policy_hnd() ||
144 !NT_STATUS_IS_OK(cli_lsa_lookup_names(global_hack_cli
, global_hack_cli
->mem_ctx
,
145 &pol
, 1, &str
, &sids
,
151 sid_copy(sid
, &sids
[0]);
158 /* print an ACE on a FILE, using either numeric or ascii representation */
159 static void print_ace(FILE *f
, SEC_ACE
*ace
)
161 const struct perm_value
*v
;
166 SidToString(sidstr
, &ace
->trustee
);
168 fprintf(f
, "%s:", sidstr
);
171 fprintf(f
, "%d/%d/0x%08x",
172 ace
->type
, ace
->flags
, ace
->info
.mask
);
178 if (ace
->type
== SEC_ACE_TYPE_ACCESS_ALLOWED
) {
179 fprintf(f
, "ALLOWED");
180 } else if (ace
->type
== SEC_ACE_TYPE_ACCESS_DENIED
) {
181 fprintf(f
, "DENIED");
183 fprintf(f
, "%d", ace
->type
);
186 /* Not sure what flags can be set in a file ACL */
188 fprintf(f
, "/%d/", ace
->flags
);
190 /* Standard permissions */
192 for (v
= standard_values
; v
->perm
; v
++) {
193 if (ace
->info
.mask
== v
->mask
) {
194 fprintf(f
, "%s", v
->perm
);
199 /* Special permissions. Print out a hex value if we have
200 leftover bits in the mask. */
202 got_mask
= ace
->info
.mask
;
205 for (v
= special_values
; v
->perm
; v
++) {
206 if ((ace
->info
.mask
& v
->mask
) == v
->mask
) {
208 fprintf(f
, "%s", v
->perm
);
210 got_mask
&= ~v
->mask
;
216 fprintf(f
, "0x%08x", ace
->info
.mask
);
225 /* parse an ACE in the same format as print_ace() */
226 static BOOL
parse_ace(SEC_ACE
*ace
, char *str
)
231 unsigned atype
, aflags
, amask
;
234 const struct perm_value
*v
;
237 p
= strchr_m(str
,':');
238 if (!p
) return False
;
241 /* Try to parse numeric form */
243 if (sscanf(p
, "%i/%i/%i", &atype
, &aflags
, &amask
) == 3 &&
244 StringToSid(&sid
, str
)) {
248 /* Try to parse text form */
250 if (!StringToSid(&sid
, str
)) {
255 if (!next_token(&cp
, tok
, "/", sizeof(fstring
))) {
259 if (strncmp(tok
, "ALLOWED", strlen("ALLOWED")) == 0) {
260 atype
= SEC_ACE_TYPE_ACCESS_ALLOWED
;
261 } else if (strncmp(tok
, "DENIED", strlen("DENIED")) == 0) {
262 atype
= SEC_ACE_TYPE_ACCESS_DENIED
;
267 /* Only numeric form accepted for flags at present */
269 if (!(next_token(&cp
, tok
, "/", sizeof(fstring
)) &&
270 sscanf(tok
, "%i", &aflags
))) {
274 if (!next_token(&cp
, tok
, "/", sizeof(fstring
))) {
278 if (strncmp(tok
, "0x", 2) == 0) {
279 if (sscanf(tok
, "%i", &amask
) != 1) {
285 for (v
= standard_values
; v
->perm
; v
++) {
286 if (strcmp(tok
, v
->perm
) == 0) {
297 for (v
= special_values
; v
->perm
; v
++) {
298 if (v
->perm
[0] == *p
) {
304 if (!found
) return False
;
314 init_sec_ace(ace
, &sid
, atype
, mask
, aflags
);
318 /* add an ACE to a list of ACEs in a SEC_ACL */
319 static BOOL
add_ace(SEC_ACL
**the_acl
, SEC_ACE
*ace
)
324 (*the_acl
) = make_sec_acl(ctx
, 3, 1, ace
);
328 aces
= calloc(1+(*the_acl
)->num_aces
,sizeof(SEC_ACE
));
329 memcpy(aces
, (*the_acl
)->ace
, (*the_acl
)->num_aces
* sizeof(SEC_ACE
));
330 memcpy(aces
+(*the_acl
)->num_aces
, ace
, sizeof(SEC_ACE
));
331 new = make_sec_acl(ctx
,(*the_acl
)->revision
,1+(*the_acl
)->num_aces
, aces
);
337 /* parse a ascii version of a security descriptor */
338 static SEC_DESC
*sec_desc_parse(char *str
)
344 DOM_SID
*grp_sid
=NULL
, *owner_sid
=NULL
;
348 while (next_token(&p
, tok
, "\t,\r\n", sizeof(tok
))) {
350 if (strncmp(tok
,"REVISION:", 9) == 0) {
351 revision
= strtol(tok
+9, NULL
, 16);
355 if (strncmp(tok
,"OWNER:", 6) == 0) {
356 owner_sid
= (DOM_SID
*)calloc(1, sizeof(DOM_SID
));
358 !StringToSid(owner_sid
, tok
+6)) {
359 printf("Failed to parse owner sid\n");
365 if (strncmp(tok
,"GROUP:", 6) == 0) {
366 grp_sid
= (DOM_SID
*)calloc(1, sizeof(DOM_SID
));
368 !StringToSid(grp_sid
, tok
+6)) {
369 printf("Failed to parse group sid\n");
375 if (strncmp(tok
,"ACL:", 4) == 0) {
377 if (!parse_ace(&ace
, tok
+4)) {
378 printf("Failed to parse ACL %s\n", tok
);
381 if(!add_ace(&dacl
, &ace
)) {
382 printf("Failed to add ACL %s\n", tok
);
388 printf("Failed to parse security descriptor\n");
392 ret
= make_sec_desc(ctx
,revision
, SEC_DESC_SELF_RELATIVE
, owner_sid
, grp_sid
,
393 NULL
, dacl
, &sd_size
);
396 SAFE_FREE(owner_sid
);
402 /* print a ascii version of a security descriptor on a FILE handle */
403 static void sec_desc_print(FILE *f
, SEC_DESC
*sd
)
408 fprintf(f
, "REVISION:%d\n", sd
->revision
);
410 /* Print owner and group sid */
413 SidToString(sidstr
, sd
->owner_sid
);
418 fprintf(f
, "OWNER:%s\n", sidstr
);
421 SidToString(sidstr
, sd
->grp_sid
);
426 fprintf(f
, "GROUP:%s\n", sidstr
);
429 for (i
= 0; sd
->dacl
&& i
< sd
->dacl
->num_aces
; i
++) {
430 SEC_ACE
*ace
= &sd
->dacl
->ace
[i
];
438 /*****************************************************
439 dump the acls for a file
440 *******************************************************/
441 static int cacl_dump(struct cli_state
*cli
, char *filename
)
443 int result
= EXIT_FAILED
;
450 fnum
= cli_nt_create(cli
, filename
, CREATE_ACCESS_READ
);
453 printf("Failed to open %s: %s\n", filename
, cli_errstr(cli
));
457 sd
= cli_query_secdesc(cli
, fnum
, ctx
);
460 printf("ERROR: secdesc query failed: %s\n", cli_errstr(cli
));
464 sec_desc_print(stdout
, sd
);
470 cli_close(cli
, fnum
);
475 /*****************************************************
476 Change the ownership or group ownership of a file. Just
477 because the NT docs say this can't be done :-). JRA.
478 *******************************************************/
480 static int owner_set(struct cli_state
*cli
, enum chown_mode change_mode
,
481 char *filename
, char *new_username
)
488 fnum
= cli_nt_create(cli
, filename
, CREATE_ACCESS_READ
);
491 printf("Failed to open %s: %s\n", filename
, cli_errstr(cli
));
495 if (!StringToSid(&sid
, new_username
))
496 return EXIT_PARSE_ERROR
;
498 old
= cli_query_secdesc(cli
, fnum
, ctx
);
500 cli_close(cli
, fnum
);
503 printf("owner_set: Failed to query old descriptor\n");
507 sd
= make_sec_desc(ctx
,old
->revision
, old
->type
,
508 (change_mode
== REQUEST_CHOWN
) ? &sid
: NULL
,
509 (change_mode
== REQUEST_CHGRP
) ? &sid
: NULL
,
510 NULL
, NULL
, &sd_size
);
512 fnum
= cli_nt_create(cli
, filename
, WRITE_OWNER_ACCESS
);
515 printf("Failed to open %s: %s\n", filename
, cli_errstr(cli
));
519 if (!cli_set_secdesc(cli
, fnum
, sd
)) {
520 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli
));
523 cli_close(cli
, fnum
);
529 /* The MSDN is contradictory over the ordering of ACE entries in an ACL.
530 However NT4 gives a "The information may have been modified by a
531 computer running Windows NT 5.0" if denied ACEs do not appear before
534 static int ace_compare(SEC_ACE
*ace1
, SEC_ACE
*ace2
)
536 if (sec_ace_equal(ace1
, ace2
))
539 if (ace1
->type
!= ace2
->type
)
540 return ace2
->type
- ace1
->type
;
542 if (sid_compare(&ace1
->trustee
, &ace2
->trustee
))
543 return sid_compare(&ace1
->trustee
, &ace2
->trustee
);
545 if (ace1
->flags
!= ace2
->flags
)
546 return ace1
->flags
- ace2
->flags
;
548 if (ace1
->info
.mask
!= ace2
->info
.mask
)
549 return ace1
->info
.mask
- ace2
->info
.mask
;
551 if (ace1
->size
!= ace2
->size
)
552 return ace1
->size
- ace2
->size
;
554 return memcmp(ace1
, ace2
, sizeof(SEC_ACE
));
557 static void sort_acl(SEC_ACL
*the_acl
)
560 if (!the_acl
) return;
562 qsort(the_acl
->ace
, the_acl
->num_aces
, sizeof(the_acl
->ace
[0]), QSORT_CAST ace_compare
);
564 for (i
=1;i
<the_acl
->num_aces
;) {
565 if (sec_ace_equal(&the_acl
->ace
[i
-1], &the_acl
->ace
[i
])) {
567 for (j
=i
; j
<the_acl
->num_aces
-1; j
++) {
568 the_acl
->ace
[j
] = the_acl
->ace
[j
+1];
577 /*****************************************************
578 set the ACLs on a file given an ascii description
579 *******************************************************/
580 static int cacl_set(struct cli_state
*cli
, char *filename
,
581 char *the_acl
, enum acl_mode mode
)
587 int result
= EXIT_OK
;
589 sd
= sec_desc_parse(the_acl
);
591 if (!sd
) return EXIT_PARSE_ERROR
;
592 if (test_args
) return EXIT_OK
;
594 /* The desired access below is the only one I could find that works
595 with NT4, W2KP and Samba */
597 fnum
= cli_nt_create(cli
, filename
, CREATE_ACCESS_READ
);
600 printf("cacl_set failed to open %s: %s\n", filename
, cli_errstr(cli
));
604 old
= cli_query_secdesc(cli
, fnum
, ctx
);
607 printf("calc_set: Failed to query old descriptor\n");
611 cli_close(cli
, fnum
);
613 /* the logic here is rather more complex than I would like */
616 for (i
=0;sd
->dacl
&& i
<sd
->dacl
->num_aces
;i
++) {
619 for (j
=0;old
->dacl
&& j
<old
->dacl
->num_aces
;j
++) {
620 if (sec_ace_equal(&sd
->dacl
->ace
[i
],
621 &old
->dacl
->ace
[j
])) {
623 for (k
=j
; k
<old
->dacl
->num_aces
-1;k
++) {
624 old
->dacl
->ace
[k
] = old
->dacl
->ace
[k
+1];
626 old
->dacl
->num_aces
--;
633 printf("ACL for ACE:");
634 print_ace(stdout
, &sd
->dacl
->ace
[i
]);
635 printf(" not found\n");
641 for (i
=0;sd
->dacl
&& i
<sd
->dacl
->num_aces
;i
++) {
644 for (j
=0;old
->dacl
&& j
<old
->dacl
->num_aces
;j
++) {
645 if (sid_equal(&sd
->dacl
->ace
[i
].trustee
,
646 &old
->dacl
->ace
[j
].trustee
)) {
647 old
->dacl
->ace
[j
] = sd
->dacl
->ace
[i
];
655 SidToString(str
, &sd
->dacl
->ace
[i
].trustee
);
656 printf("ACL for SID %s not found\n", str
);
663 for (i
=0;sd
->dacl
&& i
<sd
->dacl
->num_aces
;i
++) {
664 add_ace(&old
->dacl
, &sd
->dacl
->ace
[i
]);
673 /* Denied ACE entries must come before allowed ones */
676 /* Create new security descriptor and set it */
677 sd
= make_sec_desc(ctx
,old
->revision
, old
->type
, NULL
, NULL
,
678 NULL
, old
->dacl
, &sd_size
);
680 fnum
= cli_nt_create(cli
, filename
, WRITE_DAC_ACCESS
);
683 printf("cacl_set failed to open %s: %s\n", filename
, cli_errstr(cli
));
687 if (!cli_set_secdesc(cli
, fnum
, sd
)) {
688 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli
));
689 result
= EXIT_FAILED
;
694 cli_close(cli
, fnum
);
700 /*****************************************************
701 return a connection to a server
702 *******************************************************/
703 static struct cli_state
*connect_one(const char *share
)
710 if (!cmdline_auth_info
.got_pass
) {
711 char *pass
= getpass("Password: ");
713 pstrcpy(cmdline_auth_info
.password
, pass
);
714 cmdline_auth_info
.got_pass
= True
;
718 if (NT_STATUS_IS_OK(nt_status
= cli_full_connection(&c
, global_myname(), server
,
721 cmdline_auth_info
.username
, lp_workgroup(),
722 cmdline_auth_info
.password
, 0,
723 cmdline_auth_info
.signing_state
, NULL
))) {
726 DEBUG(0,("cli_full_connection failed! (%s)\n", nt_errstr(nt_status
)));
731 /****************************************************************************
733 ****************************************************************************/
734 int main(int argc
, const char *argv
[])
738 enum acl_mode mode
= SMB_ACL_SET
;
739 static char *the_acl
= NULL
;
740 enum chown_mode change_mode
= REQUEST_NONE
;
745 struct poptOption long_options
[] = {
747 { "delete", 'D', POPT_ARG_STRING
, NULL
, 'D', "Delete an acl", "ACL" },
748 { "modify", 'M', POPT_ARG_STRING
, NULL
, 'M', "Modify an acl", "ACL" },
749 { "add", 'a', POPT_ARG_STRING
, NULL
, 'a', "Add an acl", "ACL" },
750 { "set", 'S', POPT_ARG_STRING
, NULL
, 'S', "Set acls", "ACLS" },
751 { "chown", 'C', POPT_ARG_STRING
, NULL
, 'C', "Change ownership of a file", "USERNAME" },
752 { "chgrp", 'G', POPT_ARG_STRING
, NULL
, 'G', "Change group ownership of a file", "GROUPNAME" },
753 { "numeric", 0, POPT_ARG_NONE
, &numeric
, True
, "Don't resolve sids or masks to names" },
754 { "test-args", 't', POPT_ARG_NONE
, &test_args
, True
, "Test arguments"},
756 POPT_COMMON_CREDENTIALS
760 struct cli_state
*cli
;
762 ctx
=talloc_init("main");
764 /* set default debug level to 0 regardless of what smb.conf sets */
765 setup_logging( "smbcacls", True
);
766 DEBUGLEVEL_CLASS
[DBGC_ALL
] = 1;
768 x_setbuf( x_stderr
, NULL
);
772 lp_load(dyn_CONFIGFILE
,True
,False
,False
);
775 pc
= poptGetContext("smbcacls", argc
, argv
, long_options
, 0);
777 poptSetOtherOptionHelp(pc
, "//server1/share1 filename");
779 while ((opt
= poptGetNextOpt(pc
)) != -1) {
782 the_acl
= smb_xstrdup(poptGetOptArg(pc
));
787 the_acl
= smb_xstrdup(poptGetOptArg(pc
));
788 mode
= SMB_ACL_DELETE
;
792 the_acl
= smb_xstrdup(poptGetOptArg(pc
));
793 mode
= SMB_ACL_MODIFY
;
797 the_acl
= smb_xstrdup(poptGetOptArg(pc
));
802 pstrcpy(owner_username
,poptGetOptArg(pc
));
803 change_mode
= REQUEST_CHOWN
;
807 pstrcpy(owner_username
,poptGetOptArg(pc
));
808 change_mode
= REQUEST_CHGRP
;
813 /* Make connection to server */
814 if(!poptPeekArg(pc
)) {
815 poptPrintUsage(pc
, stderr
, 0);
819 fstrcpy(path
, poptGetArg(pc
));
821 if(!poptPeekArg(pc
)) {
822 poptPrintUsage(pc
, stderr
, 0);
826 pstrcpy(filename
, poptGetArg(pc
));
828 all_string_sub(path
,"/","\\",0);
830 fstrcpy(server
,path
+2);
831 share
= strchr_m(server
,'\\');
833 share
= strchr_m(server
,'/');
835 printf("Invalid argument: %s\n", share
);
844 cli
= connect_one(share
);
853 all_string_sub(filename
, "/", "\\", 0);
854 if (filename
[0] != '\\') {
857 safe_strcpy(&s
[1], filename
, sizeof(pstring
)-2);
858 pstrcpy(filename
, s
);
861 /* Perform requested action */
863 if (change_mode
!= REQUEST_NONE
) {
864 result
= owner_set(cli
, change_mode
, filename
, owner_username
);
865 } else if (the_acl
) {
866 result
= cacl_set(cli
, filename
, the_acl
, mode
);
868 result
= cacl_dump(cli
, filename
);