2 Unix SMB/Netbios implementation.
6 Copyright (C) Andrew Tridgell 2000
7 Copyright (C) Tim Potter 2000
8 Copyright (C) Jeremy Allison 2000
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 fstring password;
28 static pstring username;
29 static pstring owner_username;
30 static fstring server;
35 #define CREATE_ACCESS_READ READ_CONTROL_ACCESS
36 #define CREATE_ACCESS_WRITE (WRITE_DAC_ACCESS | WRITE_OWNER_ACCESS)
38 /* numeric is set when the user wants numeric SIDs and ACEs rather
39 than going via LSA calls to resolve them */
42 enum acl_mode {SMB_ACL_SET, SMB_ACL_DELETE, SMB_ACL_MODIFY, SMB_ACL_ADD };
43 enum chown_mode {REQUEST_NONE, REQUEST_CHOWN, REQUEST_CHGRP};
44 enum exit_values {EXIT_OK, EXIT_FAILED, EXIT_PARSE_ERROR};
51 /* These values discovered by inspection */
53 static struct perm_value special_values[] = {
63 static struct perm_value standard_values[] = {
64 { "READ", 0x001200a9 },
65 { "CHANGE", 0x001301bf },
66 { "FULL", 0x001f01ff },
70 struct cli_state lsa_cli;
72 struct ntuser_creds creds;
75 /* Open cli connection and policy handle */
77 static BOOL cacls_open_policy_hnd(void)
79 creds.pwd.null_pwd = 1;
81 /* Initialise cli LSA connection */
83 if (!lsa_cli.initialised &&
84 !cli_lsa_initialise(&lsa_cli, server, &creds)) {
88 /* Open policy handle */
90 if (!got_policy_hnd) {
92 /* Some systems don't support SEC_RIGHTS_MAXIMUM_ALLOWED,
93 but NT sends 0x2000000 so we might as well do it too. */
95 if (!NT_STATUS_IS_OK(cli_lsa_open_policy(&lsa_cli, lsa_cli.mem_ctx, True,
96 GENERIC_EXECUTE_ACCESS, &pol))) {
100 got_policy_hnd = True;
106 /* convert a SID to a string, either numeric or username/group */
107 static void SidToString(fstring str, DOM_SID *sid)
109 char **domains = NULL;
111 uint32 *types = NULL;
114 sid_to_string(str, sid);
118 /* Ask LSA to convert the sid to a name */
120 if (!cacls_open_policy_hnd() ||
121 !NT_STATUS_IS_OK(cli_lsa_lookup_sids(&lsa_cli, lsa_cli.mem_ctx,
122 &pol, 1, sid, &domains, &names,
123 &types, &num_names)) ||
124 !domains || !domains[0] || !names || !names[0]) {
130 slprintf(str, sizeof(fstring) - 1, "%s%s%s",
131 domains[0], lp_winbind_separator(),
136 /* convert a string to a SID, either numeric or username/group */
137 static BOOL StringToSid(DOM_SID *sid, const char *str)
139 uint32 *types = NULL;
140 DOM_SID *sids = NULL;
144 if (strncmp(str, "S-", 2) == 0) {
145 return string_to_sid(sid, str);
148 if (!cacls_open_policy_hnd() ||
149 !NT_STATUS_IS_OK(cli_lsa_lookup_names(&lsa_cli, lsa_cli.mem_ctx, &pol, 1,
151 &sids, &types, &num_sids))) {
156 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 struct cli_state *connect_one(char *share)
709 struct nmb_name called, calling;
711 extern pstring global_myname;
713 fstrcpy(server,share+2);
714 share = strchr_m(server,'\\');
715 if (!share) return NULL;
721 make_nmb_name(&calling, global_myname, 0x0);
722 make_nmb_name(&called , server, 0x20);
727 /* have to open a new connection */
728 if (!(c=cli_initialise(NULL)) || !cli_connect(c, server, &ip)) {
729 DEBUG(0,("Connection to %s failed\n", server));
734 if (!cli_session_request(c, &calling, &called)) {
735 DEBUG(0,("session request to %s failed\n", called.name));
737 if (strcmp(called.name, "*SMBSERVER")) {
738 make_nmb_name(&called , "*SMBSERVER", 0x20);
744 DEBUG(4,(" session request ok\n"));
746 if (!cli_negprot(c)) {
747 DEBUG(0,("protocol negotiation failed\n"));
753 char *pass = getpass("Password: ");
755 pstrcpy(password, pass);
759 if (!cli_session_setup(c, username,
760 password, strlen(password),
761 password, strlen(password),
763 DEBUG(0,("session setup failed: %s\n", cli_errstr(c)));
768 DEBUG(4,(" session setup ok\n"));
770 if (!cli_send_tconX(c, share, "?????",
771 password, strlen(password)+1)) {
772 DEBUG(0,("tree connect failed: %s\n", cli_errstr(c)));
777 DEBUG(4,(" tconx ok\n"));
783 static void usage(void)
786 "Usage: smbcacls //server1/share1 filename [options]\n\
788 \t-D <acls> delete an acl\n\
789 \t-M <acls> modify an acl\n\
790 \t-A <acls> add an acl\n\
791 \t-S <acls> set acls\n\
792 \t-C username change ownership of a file\n\
793 \t-G username change group ownership of a file\n\
794 \t-n don't resolve sids or masks to names\n\
796 \t-d debuglevel set debug output level\n\
797 \t-U username user to autheticate as\n\
799 The username can be of the form username%%password or\n\
800 workgroup\\username%%password.\n\n\
801 An acl is of the form ACL:<SID>:type/flags/mask\n\
802 You can string acls together with spaces, commas or newlines\n\
806 /****************************************************************************
808 ****************************************************************************/
809 int main(int argc,char *argv[])
817 struct cli_state *cli=NULL;
818 enum acl_mode mode = SMB_ACL_SET;
819 char *the_acl = NULL;
820 enum chown_mode change_mode = REQUEST_NONE;
829 if (argc < 3 || argv[1][0] == '-') {
832 exit(EXIT_PARSE_ERROR);
835 setup_logging(argv[0],True);
838 pstrcpy(filename, argv[2]);
839 all_string_sub(share,"/","\\",0);
844 lp_load(dyn_CONFIGFILE,True,False,False);
847 if (getenv("USER")) {
848 pstrcpy(username,getenv("USER"));
850 if ((p=strchr_m(username,'%'))) {
852 pstrcpy(password,p+1);
854 memset(strchr_m(getenv("USER"), '%') + 1, 'X',
859 while ((opt = getopt(argc, argv, "U:nhS:D:A:M:C:G:td:")) != EOF) {
862 pstrcpy(username,optarg);
863 p = strchr_m(username,'%');
866 pstrcpy(password, p+1);
878 mode = SMB_ACL_DELETE;
883 mode = SMB_ACL_MODIFY;
892 pstrcpy(owner_username,optarg);
893 change_mode = REQUEST_CHOWN;
897 pstrcpy(owner_username,optarg);
898 change_mode = REQUEST_CHGRP;
912 exit(EXIT_PARSE_ERROR);
915 DEBUGLEVEL = atoi(optarg);
919 printf("Unknown option %c (%d)\n", (char)opt, opt);
921 exit(EXIT_PARSE_ERROR);
931 exit(EXIT_PARSE_ERROR);
934 /* Make connection to server */
937 cli = connect_one(share);
944 all_string_sub(filename, "/", "\\", 0);
945 if (filename[0] != '\\') {
948 safe_strcpy(&s[1], filename, sizeof(pstring)-1);
949 pstrcpy(filename, s);
952 /* Perform requested action */
954 if (change_mode != REQUEST_NONE) {
955 result = owner_set(cli, change_mode, filename, owner_username);
956 } else if (the_acl) {
957 result = cacl_set(cli, filename, the_acl, mode);
959 result = cacl_dump(cli, filename);