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
33 #define CREATE_ACCESS_WRITE (WRITE_DAC_ACCESS | WRITE_OWNER_ACCESS)
35 /* numeric is set when the user wants numeric SIDs and ACEs rather
36 than going via LSA calls to resolve them */
37 static BOOL numeric = False;
39 enum acl_mode {SMB_ACL_SET, SMB_ACL_DELETE, SMB_ACL_MODIFY, SMB_ACL_ADD };
40 enum chown_mode {REQUEST_NONE, REQUEST_CHOWN, REQUEST_CHGRP};
41 enum exit_values {EXIT_OK, EXIT_FAILED, EXIT_PARSE_ERROR};
48 /* These values discovered by inspection */
50 static const struct perm_value special_values[] = {
60 static const struct perm_value standard_values[] = {
61 { "READ", 0x001200a9 },
62 { "CHANGE", 0x001301bf },
63 { "FULL", 0x001f01ff },
67 static struct cli_state *global_hack_cli;
68 static POLICY_HND pol;
69 static BOOL got_policy_hnd;
71 static struct cli_state *connect_one(const char *share);
73 /* Open cli connection and policy handle */
75 static BOOL cacls_open_policy_hnd(void)
77 /* Initialise cli LSA connection */
79 if (!global_hack_cli) {
80 global_hack_cli = connect_one("IPC$");
81 if (!cli_nt_session_open (global_hack_cli, PI_LSARPC)) {
86 /* Open policy handle */
88 if (!got_policy_hnd) {
90 /* Some systems don't support SEC_RIGHTS_MAXIMUM_ALLOWED,
91 but NT sends 0x2000000 so we might as well do it too. */
93 if (!NT_STATUS_IS_OK(cli_lsa_open_policy(global_hack_cli, global_hack_cli->mem_ctx, True,
94 GENERIC_EXECUTE_ACCESS, &pol))) {
98 got_policy_hnd = True;
104 /* convert a SID to a string, either numeric or username/group */
105 static void SidToString(fstring str, DOM_SID *sid)
107 char **domains = NULL;
109 uint32 *types = NULL;
111 sid_to_string(str, sid);
115 /* Ask LSA to convert the sid to a name */
117 if (!cacls_open_policy_hnd() ||
118 !NT_STATUS_IS_OK(cli_lsa_lookup_sids(global_hack_cli, global_hack_cli->mem_ctx,
119 &pol, 1, sid, &domains,
121 !domains || !domains[0] || !names || !names[0]) {
127 slprintf(str, sizeof(fstring) - 1, "%s%s%s",
128 domains[0], lp_winbind_separator(),
133 /* convert a string to a SID, either numeric or username/group */
134 static BOOL StringToSid(DOM_SID *sid, const char *str)
136 uint32 *types = NULL;
137 DOM_SID *sids = NULL;
140 if (strncmp(str, "S-", 2) == 0) {
141 return string_to_sid(sid, str);
144 if (!cacls_open_policy_hnd() ||
145 !NT_STATUS_IS_OK(cli_lsa_lookup_names(global_hack_cli, global_hack_cli->mem_ctx,
146 &pol, 1, &str, &sids,
152 sid_copy(sid, &sids[0]);
159 /* print an ACE on a FILE, using either numeric or ascii representation */
160 static void print_ace(FILE *f, SEC_ACE *ace)
162 const struct perm_value *v;
167 SidToString(sidstr, &ace->trustee);
169 fprintf(f, "%s:", sidstr);
172 fprintf(f, "%d/%d/0x%08x",
173 ace->type, ace->flags, ace->info.mask);
179 if (ace->type == SEC_ACE_TYPE_ACCESS_ALLOWED) {
180 fprintf(f, "ALLOWED");
181 } else if (ace->type == SEC_ACE_TYPE_ACCESS_DENIED) {
182 fprintf(f, "DENIED");
184 fprintf(f, "%d", ace->type);
187 /* Not sure what flags can be set in a file ACL */
189 fprintf(f, "/%d/", ace->flags);
191 /* Standard permissions */
193 for (v = standard_values; v->perm; v++) {
194 if (ace->info.mask == v->mask) {
195 fprintf(f, "%s", v->perm);
200 /* Special permissions. Print out a hex value if we have
201 leftover bits in the mask. */
203 got_mask = ace->info.mask;
206 for (v = special_values; v->perm; v++) {
207 if ((ace->info.mask & v->mask) == v->mask) {
209 fprintf(f, "%s", v->perm);
211 got_mask &= ~v->mask;
217 fprintf(f, "0x%08x", ace->info.mask);
226 /* parse an ACE in the same format as print_ace() */
227 static BOOL parse_ace(SEC_ACE *ace, char *str)
232 unsigned atype, aflags, amask;
235 const struct perm_value *v;
238 p = strchr_m(str,':');
239 if (!p) return False;
242 /* Try to parse numeric form */
244 if (sscanf(p, "%i/%i/%i", &atype, &aflags, &amask) == 3 &&
245 StringToSid(&sid, str)) {
249 /* Try to parse text form */
251 if (!StringToSid(&sid, str)) {
256 if (!next_token(&cp, tok, "/", sizeof(fstring))) {
260 if (strncmp(tok, "ALLOWED", strlen("ALLOWED")) == 0) {
261 atype = SEC_ACE_TYPE_ACCESS_ALLOWED;
262 } else if (strncmp(tok, "DENIED", strlen("DENIED")) == 0) {
263 atype = SEC_ACE_TYPE_ACCESS_DENIED;
268 /* Only numeric form accepted for flags at present */
270 if (!(next_token(&cp, tok, "/", sizeof(fstring)) &&
271 sscanf(tok, "%i", &aflags))) {
275 if (!next_token(&cp, tok, "/", sizeof(fstring))) {
279 if (strncmp(tok, "0x", 2) == 0) {
280 if (sscanf(tok, "%i", &amask) != 1) {
286 for (v = standard_values; v->perm; v++) {
287 if (strcmp(tok, v->perm) == 0) {
298 for (v = special_values; v->perm; v++) {
299 if (v->perm[0] == *p) {
305 if (!found) return False;
315 init_sec_ace(ace, &sid, atype, mask, aflags);
319 /* add an ACE to a list of ACEs in a SEC_ACL */
320 static BOOL add_ace(SEC_ACL **the_acl, SEC_ACE *ace)
325 (*the_acl) = make_sec_acl(ctx, 3, 1, ace);
329 aces = calloc(1+(*the_acl)->num_aces,sizeof(SEC_ACE));
330 memcpy(aces, (*the_acl)->ace, (*the_acl)->num_aces * sizeof(SEC_ACE));
331 memcpy(aces+(*the_acl)->num_aces, ace, sizeof(SEC_ACE));
332 new = make_sec_acl(ctx,(*the_acl)->revision,1+(*the_acl)->num_aces, aces);
338 /* parse a ascii version of a security descriptor */
339 static SEC_DESC *sec_desc_parse(char *str)
345 DOM_SID *grp_sid=NULL, *owner_sid=NULL;
349 while (next_token(&p, tok, "\t,\r\n", sizeof(tok))) {
351 if (strncmp(tok,"REVISION:", 9) == 0) {
352 revision = strtol(tok+9, NULL, 16);
356 if (strncmp(tok,"OWNER:", 6) == 0) {
357 owner_sid = (DOM_SID *)calloc(1, sizeof(DOM_SID));
359 !StringToSid(owner_sid, tok+6)) {
360 printf("Failed to parse owner sid\n");
366 if (strncmp(tok,"GROUP:", 6) == 0) {
367 grp_sid = (DOM_SID *)calloc(1, sizeof(DOM_SID));
369 !StringToSid(grp_sid, tok+6)) {
370 printf("Failed to parse group sid\n");
376 if (strncmp(tok,"ACL:", 4) == 0) {
378 if (!parse_ace(&ace, tok+4)) {
379 printf("Failed to parse ACL %s\n", tok);
382 if(!add_ace(&dacl, &ace)) {
383 printf("Failed to add ACL %s\n", tok);
389 printf("Failed to parse security descriptor\n");
393 ret = make_sec_desc(ctx,revision, owner_sid, grp_sid,
394 NULL, dacl, &sd_size);
397 SAFE_FREE(owner_sid);
403 /* print a ascii version of a security descriptor on a FILE handle */
404 static void sec_desc_print(FILE *f, SEC_DESC *sd)
409 fprintf(f, "REVISION:%d\n", sd->revision);
411 /* Print owner and group sid */
414 SidToString(sidstr, sd->owner_sid);
419 fprintf(f, "OWNER:%s\n", sidstr);
422 SidToString(sidstr, sd->grp_sid);
427 fprintf(f, "GROUP:%s\n", sidstr);
430 for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
431 SEC_ACE *ace = &sd->dacl->ace[i];
439 /*****************************************************
440 dump the acls for a file
441 *******************************************************/
442 static int cacl_dump(struct cli_state *cli, char *filename)
444 int result = EXIT_FAILED;
451 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
454 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
458 sd = cli_query_secdesc(cli, fnum, ctx);
461 printf("ERROR: secdesc query failed: %s\n", cli_errstr(cli));
465 sec_desc_print(stdout, sd);
471 cli_close(cli, fnum);
476 /*****************************************************
477 Change the ownership or group ownership of a file. Just
478 because the NT docs say this can't be done :-). JRA.
479 *******************************************************/
481 static int owner_set(struct cli_state *cli, enum chown_mode change_mode,
482 char *filename, char *new_username)
489 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
492 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
496 if (!StringToSid(&sid, new_username))
497 return EXIT_PARSE_ERROR;
499 old = cli_query_secdesc(cli, fnum, ctx);
501 cli_close(cli, fnum);
504 printf("owner_set: Failed to query old descriptor\n");
508 sd = make_sec_desc(ctx,old->revision,
509 (change_mode == REQUEST_CHOWN) ? &sid : old->owner_sid,
510 (change_mode == REQUEST_CHGRP) ? &sid : old->grp_sid,
511 NULL, old->dacl, &sd_size);
513 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_WRITE);
516 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
520 if (!cli_set_secdesc(cli, fnum, sd)) {
521 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
524 cli_close(cli, fnum);
530 /* The MSDN is contradictory over the ordering of ACE entries in an ACL.
531 However NT4 gives a "The information may have been modified by a
532 computer running Windows NT 5.0" if denied ACEs do not appear before
535 static int ace_compare(SEC_ACE *ace1, SEC_ACE *ace2)
537 if (sec_ace_equal(ace1, ace2))
540 if (ace1->type != ace2->type)
541 return ace2->type - ace1->type;
543 if (sid_compare(&ace1->trustee, &ace2->trustee))
544 return sid_compare(&ace1->trustee, &ace2->trustee);
546 if (ace1->flags != ace2->flags)
547 return ace1->flags - ace2->flags;
549 if (ace1->info.mask != ace2->info.mask)
550 return ace1->info.mask - ace2->info.mask;
552 if (ace1->size != ace2->size)
553 return ace1->size - ace2->size;
555 return memcmp(ace1, ace2, sizeof(SEC_ACE));
558 static void sort_acl(SEC_ACL *the_acl)
561 if (!the_acl) return;
563 qsort(the_acl->ace, the_acl->num_aces, sizeof(the_acl->ace[0]), QSORT_CAST ace_compare);
565 for (i=1;i<the_acl->num_aces;) {
566 if (sec_ace_equal(&the_acl->ace[i-1], &the_acl->ace[i])) {
568 for (j=i; j<the_acl->num_aces-1; j++) {
569 the_acl->ace[j] = the_acl->ace[j+1];
578 /*****************************************************
579 set the ACLs on a file given an ascii description
580 *******************************************************/
581 static int cacl_set(struct cli_state *cli, char *filename,
582 char *the_acl, enum acl_mode mode)
588 int result = EXIT_OK;
590 sd = sec_desc_parse(the_acl);
592 if (!sd) return EXIT_PARSE_ERROR;
593 if (test_args) return EXIT_OK;
595 /* The desired access below is the only one I could find that works
596 with NT4, W2KP and Samba */
598 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
601 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
605 old = cli_query_secdesc(cli, fnum, ctx);
608 printf("calc_set: Failed to query old descriptor\n");
612 cli_close(cli, fnum);
614 /* the logic here is rather more complex than I would like */
617 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
620 for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
621 if (sec_ace_equal(&sd->dacl->ace[i],
622 &old->dacl->ace[j])) {
624 for (k=j; k<old->dacl->num_aces-1;k++) {
625 old->dacl->ace[k] = old->dacl->ace[k+1];
627 old->dacl->num_aces--;
628 if (old->dacl->num_aces == 0) {
629 SAFE_FREE(old->dacl->ace);
630 SAFE_FREE(old->dacl);
639 printf("ACL for ACE:");
640 print_ace(stdout, &sd->dacl->ace[i]);
641 printf(" not found\n");
647 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
650 for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
651 if (sid_equal(&sd->dacl->ace[i].trustee,
652 &old->dacl->ace[j].trustee)) {
653 old->dacl->ace[j] = sd->dacl->ace[i];
661 SidToString(str, &sd->dacl->ace[i].trustee);
662 printf("ACL for SID %s not found\n", str);
669 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
670 add_ace(&old->dacl, &sd->dacl->ace[i]);
679 /* Denied ACE entries must come before allowed ones */
682 /* Create new security descriptor and set it */
683 sd = make_sec_desc(ctx,old->revision, old->owner_sid, old->grp_sid,
684 NULL, old->dacl, &sd_size);
686 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_WRITE);
689 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
693 if (!cli_set_secdesc(cli, fnum, sd)) {
694 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
695 result = EXIT_FAILED;
700 cli_close(cli, fnum);
706 /*****************************************************
707 return a connection to a server
708 *******************************************************/
709 static struct cli_state *connect_one(const char *share)
716 if (!cmdline_auth_info.got_pass) {
717 char *pass = getpass("Password: ");
719 pstrcpy(cmdline_auth_info.password, pass);
720 cmdline_auth_info.got_pass = True;
724 if (NT_STATUS_IS_OK(nt_status = cli_full_connection(&c, global_myname(), server,
727 cmdline_auth_info.username, lp_workgroup(),
728 cmdline_auth_info.password, 0, NULL))) {
731 DEBUG(0,("cli_full_connection failed! (%s)\n", nt_errstr(nt_status)));
736 /****************************************************************************
738 ****************************************************************************/
739 int main(int argc, const char *argv[])
743 enum acl_mode mode = SMB_ACL_SET;
744 static char *the_acl = NULL;
745 enum chown_mode change_mode = REQUEST_NONE;
750 struct poptOption long_options[] = {
752 { "delete", 'D', POPT_ARG_STRING, NULL, 'D', "Delete an acl", "ACL" },
753 { "modify", 'M', POPT_ARG_STRING, NULL, 'M', "Modify an acl", "ACL" },
754 { "add", 'A', POPT_ARG_STRING, NULL, 'A', "Add an acl", "ACL" },
755 { "set", 'S', POPT_ARG_STRING, NULL, 'S', "Set acls", "ACLS" },
756 { "chown", 'C', POPT_ARG_STRING, NULL, 'C', "Change ownership of a file", "USERNAME" },
757 { "chgrp", 'G', POPT_ARG_STRING, NULL, 'G', "Change group ownership of a file", "GROUPNAME" },
758 { "numeric", 0, POPT_ARG_NONE, &numeric, True, "Don't resolve sids or masks to names" },
759 { "test-args", 't', POPT_ARG_NONE, &test_args, True, "Test arguments"},
761 POPT_COMMON_CREDENTIALS
765 struct cli_state *cli;
767 ctx=talloc_init("main");
773 setup_logging(argv[0],True);
775 lp_load(dyn_CONFIGFILE,True,False,False);
778 pc = poptGetContext("smbcacls", argc, argv, long_options, 0);
780 poptSetOtherOptionHelp(pc, "//server1/share1 filename");
782 while ((opt = poptGetNextOpt(pc)) != -1) {
785 the_acl = smb_xstrdup(poptGetOptArg(pc));
790 the_acl = smb_xstrdup(poptGetOptArg(pc));
791 mode = SMB_ACL_DELETE;
795 the_acl = smb_xstrdup(poptGetOptArg(pc));
796 mode = SMB_ACL_MODIFY;
800 the_acl = smb_xstrdup(poptGetOptArg(pc));
805 pstrcpy(owner_username,poptGetOptArg(pc));
806 change_mode = REQUEST_CHOWN;
810 pstrcpy(owner_username,poptGetOptArg(pc));
811 change_mode = REQUEST_CHGRP;
816 /* Make connection to server */
817 if(!poptPeekArg(pc)) {
818 poptPrintUsage(pc, stderr, 0);
822 fstrcpy(path, poptGetArg(pc));
824 if(!poptPeekArg(pc)) {
825 poptPrintUsage(pc, stderr, 0);
829 pstrcpy(filename, poptGetArg(pc));
831 all_string_sub(path,"/","\\",0);
833 fstrcpy(server,path+2);
834 share = strchr_m(server,'\\');
836 share = strchr_m(server,'/');
838 printf("Invalid argument: %s\n", share);
847 cli = connect_one(share);
856 all_string_sub(filename, "/", "\\", 0);
857 if (filename[0] != '\\') {
860 safe_strcpy(&s[1], filename, sizeof(pstring)-2);
861 pstrcpy(filename, s);
864 /* Perform requested action */
866 if (change_mode != REQUEST_NONE) {
867 result = owner_set(cli, change_mode, filename, owner_username);
868 } else if (the_acl) {
869 result = cacl_set(cli, filename, the_acl, mode);
871 result = cacl_dump(cli, filename);