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 3 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, see <http://www.gnu.org/licenses/>.
26 static pstring owner_username
;
27 static fstring server
;
28 static int test_args
= False
;
29 static TALLOC_CTX
*ctx
;
31 #define CREATE_ACCESS_READ READ_CONTROL_ACCESS
33 /* numeric is set when the user wants numeric SIDs and ACEs rather
34 than going via LSA calls to resolve them */
35 static BOOL numeric
= False
;
37 enum acl_mode
{SMB_ACL_SET
, SMB_ACL_DELETE
, SMB_ACL_MODIFY
, SMB_ACL_ADD
};
38 enum chown_mode
{REQUEST_NONE
, REQUEST_CHOWN
, REQUEST_CHGRP
};
39 enum exit_values
{EXIT_OK
, EXIT_FAILED
, EXIT_PARSE_ERROR
};
46 /* These values discovered by inspection */
48 static const struct perm_value special_values
[] = {
58 static const struct perm_value standard_values
[] = {
59 { "READ", 0x001200a9 },
60 { "CHANGE", 0x001301bf },
61 { "FULL", 0x001f01ff },
65 static struct cli_state
*global_hack_cli
;
66 static struct rpc_pipe_client
*global_pipe_hnd
;
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
) {
80 global_hack_cli
= connect_one("IPC$");
81 global_pipe_hnd
= cli_rpc_pipe_open_noauth(global_hack_cli
, PI_LSARPC
, &ret
);
82 if (!global_pipe_hnd
) {
87 /* Open policy handle */
89 if (!got_policy_hnd
) {
91 /* Some systems don't support SEC_RIGHTS_MAXIMUM_ALLOWED,
92 but NT sends 0x2000000 so we might as well do it too. */
94 if (!NT_STATUS_IS_OK(rpccli_lsa_open_policy(global_pipe_hnd
, global_hack_cli
->mem_ctx
, True
,
95 GENERIC_EXECUTE_ACCESS
, &pol
))) {
99 got_policy_hnd
= True
;
105 /* convert a SID to a string, either numeric or username/group */
106 static void SidToString(fstring str
, DOM_SID
*sid
)
108 char **domains
= NULL
;
110 enum lsa_SidType
*types
= NULL
;
112 sid_to_string(str
, sid
);
116 /* Ask LSA to convert the sid to a name */
118 if (!cacls_open_policy_hnd() ||
119 !NT_STATUS_IS_OK(rpccli_lsa_lookup_sids(global_pipe_hnd
, global_hack_cli
->mem_ctx
,
120 &pol
, 1, sid
, &domains
,
122 !domains
|| !domains
[0] || !names
|| !names
[0]) {
128 slprintf(str
, sizeof(fstring
) - 1, "%s%s%s",
129 domains
[0], lp_winbind_separator(),
134 /* convert a string to a SID, either numeric or username/group */
135 static BOOL
StringToSid(DOM_SID
*sid
, const char *str
)
137 enum lsa_SidType
*types
= NULL
;
138 DOM_SID
*sids
= NULL
;
141 if (strncmp(str
, "S-", 2) == 0) {
142 return string_to_sid(sid
, str
);
145 if (!cacls_open_policy_hnd() ||
146 !NT_STATUS_IS_OK(rpccli_lsa_lookup_names(global_pipe_hnd
, global_hack_cli
->mem_ctx
,
147 &pol
, 1, &str
, NULL
, 1, &sids
,
153 sid_copy(sid
, &sids
[0]);
160 /* print an ACE on a FILE, using either numeric or ascii representation */
161 static void print_ace(FILE *f
, SEC_ACE
*ace
)
163 const struct perm_value
*v
;
168 SidToString(sidstr
, &ace
->trustee
);
170 fprintf(f
, "%s:", sidstr
);
173 fprintf(f
, "%d/%d/0x%08x",
174 ace
->type
, ace
->flags
, ace
->access_mask
);
180 if (ace
->type
== SEC_ACE_TYPE_ACCESS_ALLOWED
) {
181 fprintf(f
, "ALLOWED");
182 } else if (ace
->type
== SEC_ACE_TYPE_ACCESS_DENIED
) {
183 fprintf(f
, "DENIED");
185 fprintf(f
, "%d", ace
->type
);
188 /* Not sure what flags can be set in a file ACL */
190 fprintf(f
, "/%d/", ace
->flags
);
192 /* Standard permissions */
194 for (v
= standard_values
; v
->perm
; v
++) {
195 if (ace
->access_mask
== v
->mask
) {
196 fprintf(f
, "%s", v
->perm
);
201 /* Special permissions. Print out a hex value if we have
202 leftover bits in the mask. */
204 got_mask
= ace
->access_mask
;
207 for (v
= special_values
; v
->perm
; v
++) {
208 if ((ace
->access_mask
& v
->mask
) == v
->mask
) {
210 fprintf(f
, "%s", v
->perm
);
212 got_mask
&= ~v
->mask
;
218 fprintf(f
, "0x%08x", ace
->access_mask
);
227 /* parse an ACE in the same format as print_ace() */
228 static BOOL
parse_ace(SEC_ACE
*ace
, const char *orig_str
)
233 unsigned int atype
= 0;
234 unsigned int aflags
= 0;
235 unsigned int amask
= 0;
238 const struct perm_value
*v
;
239 char *str
= SMB_STRDUP(orig_str
);
246 p
= strchr_m(str
,':');
248 printf("ACE '%s': missing ':'.\n", orig_str
);
254 /* Try to parse numeric form */
256 if (sscanf(p
, "%i/%i/%i", &atype
, &aflags
, &amask
) == 3 &&
257 StringToSid(&sid
, str
)) {
261 /* Try to parse text form */
263 if (!StringToSid(&sid
, str
)) {
264 printf("ACE '%s': failed to convert '%s' to SID\n",
271 if (!next_token(&cp
, tok
, "/", sizeof(fstring
))) {
272 printf("ACE '%s': failed to find '/' character.\n",
278 if (strncmp(tok
, "ALLOWED", strlen("ALLOWED")) == 0) {
279 atype
= SEC_ACE_TYPE_ACCESS_ALLOWED
;
280 } else if (strncmp(tok
, "DENIED", strlen("DENIED")) == 0) {
281 atype
= SEC_ACE_TYPE_ACCESS_DENIED
;
283 printf("ACE '%s': missing 'ALLOWED' or 'DENIED' entry at '%s'\n",
289 /* Only numeric form accepted for flags at present */
291 if (!(next_token(&cp
, tok
, "/", sizeof(fstring
)) &&
292 sscanf(tok
, "%i", &aflags
))) {
293 printf("ACE '%s': bad integer flags entry at '%s'\n",
299 if (!next_token(&cp
, tok
, "/", sizeof(fstring
))) {
300 printf("ACE '%s': missing / at '%s'\n",
306 if (strncmp(tok
, "0x", 2) == 0) {
307 if (sscanf(tok
, "%i", &amask
) != 1) {
308 printf("ACE '%s': bad hex number at '%s'\n",
316 for (v
= standard_values
; v
->perm
; v
++) {
317 if (strcmp(tok
, v
->perm
) == 0) {
328 for (v
= special_values
; v
->perm
; v
++) {
329 if (v
->perm
[0] == *p
) {
336 printf("ACE '%s': bad permission value at '%s'\n",
351 init_sec_ace(ace
, &sid
, atype
, mask
, aflags
);
356 /* add an ACE to a list of ACEs in a SEC_ACL */
357 static BOOL
add_ace(SEC_ACL
**the_acl
, SEC_ACE
*ace
)
362 return (((*the_acl
) = make_sec_acl(ctx
, 3, 1, ace
)) != NULL
);
365 if (!(aces
= SMB_CALLOC_ARRAY(SEC_ACE
, 1+(*the_acl
)->num_aces
))) {
368 memcpy(aces
, (*the_acl
)->aces
, (*the_acl
)->num_aces
* sizeof(SEC_ACE
));
369 memcpy(aces
+(*the_acl
)->num_aces
, ace
, sizeof(SEC_ACE
));
370 new_ace
= make_sec_acl(ctx
,(*the_acl
)->revision
,1+(*the_acl
)->num_aces
, aces
);
372 (*the_acl
) = new_ace
;
376 /* parse a ascii version of a security descriptor */
377 static SEC_DESC
*sec_desc_parse(char *str
)
381 SEC_DESC
*ret
= NULL
;
383 DOM_SID
*grp_sid
=NULL
, *owner_sid
=NULL
;
387 while (next_token(&p
, tok
, "\t,\r\n", sizeof(tok
))) {
389 if (strncmp(tok
,"REVISION:", 9) == 0) {
390 revision
= strtol(tok
+9, NULL
, 16);
394 if (strncmp(tok
,"OWNER:", 6) == 0) {
396 printf("Only specify owner once\n");
399 owner_sid
= SMB_CALLOC_ARRAY(DOM_SID
, 1);
401 !StringToSid(owner_sid
, tok
+6)) {
402 printf("Failed to parse owner sid\n");
408 if (strncmp(tok
,"GROUP:", 6) == 0) {
410 printf("Only specify group once\n");
413 grp_sid
= SMB_CALLOC_ARRAY(DOM_SID
, 1);
415 !StringToSid(grp_sid
, tok
+6)) {
416 printf("Failed to parse group sid\n");
422 if (strncmp(tok
,"ACL:", 4) == 0) {
424 if (!parse_ace(&ace
, tok
+4)) {
427 if(!add_ace(&dacl
, &ace
)) {
428 printf("Failed to add ACL %s\n", tok
);
434 printf("Failed to parse token '%s' in security descriptor,\n", tok
);
438 ret
= make_sec_desc(ctx
,revision
, SEC_DESC_SELF_RELATIVE
, owner_sid
, grp_sid
,
439 NULL
, dacl
, &sd_size
);
443 SAFE_FREE(owner_sid
);
449 /* print a ascii version of a security descriptor on a FILE handle */
450 static void sec_desc_print(FILE *f
, SEC_DESC
*sd
)
455 fprintf(f
, "REVISION:%d\n", sd
->revision
);
457 /* Print owner and group sid */
460 SidToString(sidstr
, sd
->owner_sid
);
465 fprintf(f
, "OWNER:%s\n", sidstr
);
468 SidToString(sidstr
, sd
->group_sid
);
473 fprintf(f
, "GROUP:%s\n", sidstr
);
476 for (i
= 0; sd
->dacl
&& i
< sd
->dacl
->num_aces
; i
++) {
477 SEC_ACE
*ace
= &sd
->dacl
->aces
[i
];
485 /*****************************************************
486 dump the acls for a file
487 *******************************************************/
488 static int cacl_dump(struct cli_state
*cli
, char *filename
)
490 int result
= EXIT_FAILED
;
497 fnum
= cli_nt_create(cli
, filename
, CREATE_ACCESS_READ
);
500 printf("Failed to open %s: %s\n", filename
, cli_errstr(cli
));
504 sd
= cli_query_secdesc(cli
, fnum
, ctx
);
507 printf("ERROR: secdesc query failed: %s\n", cli_errstr(cli
));
511 sec_desc_print(stdout
, sd
);
517 cli_close(cli
, fnum
);
522 /*****************************************************
523 Change the ownership or group ownership of a file. Just
524 because the NT docs say this can't be done :-). JRA.
525 *******************************************************/
527 static int owner_set(struct cli_state
*cli
, enum chown_mode change_mode
,
528 char *filename
, char *new_username
)
535 fnum
= cli_nt_create(cli
, filename
, CREATE_ACCESS_READ
);
538 printf("Failed to open %s: %s\n", filename
, cli_errstr(cli
));
542 if (!StringToSid(&sid
, new_username
))
543 return EXIT_PARSE_ERROR
;
545 old
= cli_query_secdesc(cli
, fnum
, ctx
);
547 cli_close(cli
, fnum
);
550 printf("owner_set: Failed to query old descriptor\n");
554 sd
= make_sec_desc(ctx
,old
->revision
, old
->type
,
555 (change_mode
== REQUEST_CHOWN
) ? &sid
: NULL
,
556 (change_mode
== REQUEST_CHGRP
) ? &sid
: NULL
,
557 NULL
, NULL
, &sd_size
);
559 fnum
= cli_nt_create(cli
, filename
, WRITE_OWNER_ACCESS
);
562 printf("Failed to open %s: %s\n", filename
, cli_errstr(cli
));
566 if (!cli_set_secdesc(cli
, fnum
, sd
)) {
567 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli
));
570 cli_close(cli
, fnum
);
576 /* The MSDN is contradictory over the ordering of ACE entries in an ACL.
577 However NT4 gives a "The information may have been modified by a
578 computer running Windows NT 5.0" if denied ACEs do not appear before
581 static int ace_compare(SEC_ACE
*ace1
, SEC_ACE
*ace2
)
583 if (sec_ace_equal(ace1
, ace2
))
586 if (ace1
->type
!= ace2
->type
)
587 return ace2
->type
- ace1
->type
;
589 if (sid_compare(&ace1
->trustee
, &ace2
->trustee
))
590 return sid_compare(&ace1
->trustee
, &ace2
->trustee
);
592 if (ace1
->flags
!= ace2
->flags
)
593 return ace1
->flags
- ace2
->flags
;
595 if (ace1
->access_mask
!= ace2
->access_mask
)
596 return ace1
->access_mask
- ace2
->access_mask
;
598 if (ace1
->size
!= ace2
->size
)
599 return ace1
->size
- ace2
->size
;
601 return memcmp(ace1
, ace2
, sizeof(SEC_ACE
));
604 static void sort_acl(SEC_ACL
*the_acl
)
607 if (!the_acl
) return;
609 qsort(the_acl
->aces
, the_acl
->num_aces
, sizeof(the_acl
->aces
[0]), QSORT_CAST ace_compare
);
611 for (i
=1;i
<the_acl
->num_aces
;) {
612 if (sec_ace_equal(&the_acl
->aces
[i
-1], &the_acl
->aces
[i
])) {
614 for (j
=i
; j
<the_acl
->num_aces
-1; j
++) {
615 the_acl
->aces
[j
] = the_acl
->aces
[j
+1];
624 /*****************************************************
625 set the ACLs on a file given an ascii description
626 *******************************************************/
627 static int cacl_set(struct cli_state
*cli
, char *filename
,
628 char *the_acl
, enum acl_mode mode
)
634 int result
= EXIT_OK
;
636 sd
= sec_desc_parse(the_acl
);
638 if (!sd
) return EXIT_PARSE_ERROR
;
639 if (test_args
) return EXIT_OK
;
641 /* The desired access below is the only one I could find that works
642 with NT4, W2KP and Samba */
644 fnum
= cli_nt_create(cli
, filename
, CREATE_ACCESS_READ
);
647 printf("cacl_set failed to open %s: %s\n", filename
, cli_errstr(cli
));
651 old
= cli_query_secdesc(cli
, fnum
, ctx
);
654 printf("calc_set: Failed to query old descriptor\n");
658 cli_close(cli
, fnum
);
660 /* the logic here is rather more complex than I would like */
663 for (i
=0;sd
->dacl
&& i
<sd
->dacl
->num_aces
;i
++) {
666 for (j
=0;old
->dacl
&& j
<old
->dacl
->num_aces
;j
++) {
667 if (sec_ace_equal(&sd
->dacl
->aces
[i
],
668 &old
->dacl
->aces
[j
])) {
670 for (k
=j
; k
<old
->dacl
->num_aces
-1;k
++) {
671 old
->dacl
->aces
[k
] = old
->dacl
->aces
[k
+1];
673 old
->dacl
->num_aces
--;
680 printf("ACL for ACE:");
681 print_ace(stdout
, &sd
->dacl
->aces
[i
]);
682 printf(" not found\n");
688 for (i
=0;sd
->dacl
&& i
<sd
->dacl
->num_aces
;i
++) {
691 for (j
=0;old
->dacl
&& j
<old
->dacl
->num_aces
;j
++) {
692 if (sid_equal(&sd
->dacl
->aces
[i
].trustee
,
693 &old
->dacl
->aces
[j
].trustee
)) {
694 old
->dacl
->aces
[j
] = sd
->dacl
->aces
[i
];
702 SidToString(str
, &sd
->dacl
->aces
[i
].trustee
);
703 printf("ACL for SID %s not found\n", str
);
708 old
->owner_sid
= sd
->owner_sid
;
712 old
->group_sid
= sd
->group_sid
;
718 for (i
=0;sd
->dacl
&& i
<sd
->dacl
->num_aces
;i
++) {
719 add_ace(&old
->dacl
, &sd
->dacl
->aces
[i
]);
728 /* Denied ACE entries must come before allowed ones */
731 /* Create new security descriptor and set it */
733 /* We used to just have "WRITE_DAC_ACCESS" without WRITE_OWNER.
734 But if we're sending an owner, even if it's the same as the one
735 that already exists then W2K3 insists we open with WRITE_OWNER access.
736 I need to check that setting a SD with no owner set works against WNT
740 sd
= make_sec_desc(ctx
,old
->revision
, old
->type
, old
->owner_sid
, old
->group_sid
,
741 NULL
, old
->dacl
, &sd_size
);
743 fnum
= cli_nt_create(cli
, filename
, WRITE_DAC_ACCESS
|WRITE_OWNER_ACCESS
);
746 printf("cacl_set failed to open %s: %s\n", filename
, cli_errstr(cli
));
750 if (!cli_set_secdesc(cli
, fnum
, sd
)) {
751 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli
));
752 result
= EXIT_FAILED
;
757 cli_close(cli
, fnum
);
763 /*****************************************************
764 return a connection to a server
765 *******************************************************/
766 static struct cli_state
*connect_one(const char *share
)
773 if (!cmdline_auth_info
.got_pass
) {
774 char *pass
= getpass("Password: ");
776 pstrcpy(cmdline_auth_info
.password
, pass
);
777 cmdline_auth_info
.got_pass
= True
;
781 if (NT_STATUS_IS_OK(nt_status
= cli_full_connection(&c
, global_myname(), server
,
784 cmdline_auth_info
.username
, lp_workgroup(),
785 cmdline_auth_info
.password
, 0,
786 cmdline_auth_info
.signing_state
, NULL
))) {
789 DEBUG(0,("cli_full_connection failed! (%s)\n", nt_errstr(nt_status
)));
794 /****************************************************************************
796 ****************************************************************************/
797 int main(int argc
, const char *argv
[])
801 enum acl_mode mode
= SMB_ACL_SET
;
802 static char *the_acl
= NULL
;
803 enum chown_mode change_mode
= REQUEST_NONE
;
808 struct poptOption long_options
[] = {
810 { "delete", 'D', POPT_ARG_STRING
, NULL
, 'D', "Delete an acl", "ACL" },
811 { "modify", 'M', POPT_ARG_STRING
, NULL
, 'M', "Modify an acl", "ACL" },
812 { "add", 'a', POPT_ARG_STRING
, NULL
, 'a', "Add an acl", "ACL" },
813 { "set", 'S', POPT_ARG_STRING
, NULL
, 'S', "Set acls", "ACLS" },
814 { "chown", 'C', POPT_ARG_STRING
, NULL
, 'C', "Change ownership of a file", "USERNAME" },
815 { "chgrp", 'G', POPT_ARG_STRING
, NULL
, 'G', "Change group ownership of a file", "GROUPNAME" },
816 { "numeric", 0, POPT_ARG_NONE
, &numeric
, True
, "Don't resolve sids or masks to names" },
817 { "test-args", 't', POPT_ARG_NONE
, &test_args
, True
, "Test arguments"},
819 POPT_COMMON_CREDENTIALS
823 struct cli_state
*cli
;
827 ctx
=talloc_init("main");
829 /* set default debug level to 1 regardless of what smb.conf sets */
830 setup_logging( "smbcacls", True
);
831 DEBUGLEVEL_CLASS
[DBGC_ALL
] = 1;
833 x_setbuf( x_stderr
, NULL
);
837 lp_load(dyn_CONFIGFILE
,True
,False
,False
,True
);
840 pc
= poptGetContext("smbcacls", argc
, argv
, long_options
, 0);
842 poptSetOtherOptionHelp(pc
, "//server1/share1 filename\nACLs look like: "
843 "'ACL:user:[ALLOWED|DENIED]/flags/permissions'");
845 while ((opt
= poptGetNextOpt(pc
)) != -1) {
848 the_acl
= smb_xstrdup(poptGetOptArg(pc
));
853 the_acl
= smb_xstrdup(poptGetOptArg(pc
));
854 mode
= SMB_ACL_DELETE
;
858 the_acl
= smb_xstrdup(poptGetOptArg(pc
));
859 mode
= SMB_ACL_MODIFY
;
863 the_acl
= smb_xstrdup(poptGetOptArg(pc
));
868 pstrcpy(owner_username
,poptGetOptArg(pc
));
869 change_mode
= REQUEST_CHOWN
;
873 pstrcpy(owner_username
,poptGetOptArg(pc
));
874 change_mode
= REQUEST_CHGRP
;
879 /* Make connection to server */
880 if(!poptPeekArg(pc
)) {
881 poptPrintUsage(pc
, stderr
, 0);
885 fstrcpy(path
, poptGetArg(pc
));
887 if(!poptPeekArg(pc
)) {
888 poptPrintUsage(pc
, stderr
, 0);
892 pstrcpy(filename
, poptGetArg(pc
));
894 all_string_sub(path
,"/","\\",0);
896 fstrcpy(server
,path
+2);
897 share
= strchr_m(server
,'\\');
899 printf("Invalid argument: %s\n", share
);
907 cli
= connect_one(share
);
916 all_string_sub(filename
, "/", "\\", 0);
917 if (filename
[0] != '\\') {
920 safe_strcpy(&s
[1], filename
, sizeof(pstring
)-2);
921 pstrcpy(filename
, s
);
924 /* Perform requested action */
926 if (change_mode
!= REQUEST_NONE
) {
927 result
= owner_set(cli
, change_mode
, filename
, owner_username
);
928 } else if (the_acl
) {
929 result
= cacl_set(cli
, filename
, the_acl
, mode
);
931 result
= cacl_dump(cli
, filename
);