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 int test_args = False;
28 #define CREATE_ACCESS_READ READ_CONTROL_ACCESS
30 /* numeric is set when the user wants numeric SIDs and ACEs rather
31 than going via LSA calls to resolve them */
32 static int numeric = False;
34 enum acl_mode {SMB_ACL_SET, SMB_ACL_DELETE, SMB_ACL_MODIFY, SMB_ACL_ADD };
35 enum chown_mode {REQUEST_NONE, REQUEST_CHOWN, REQUEST_CHGRP};
36 enum exit_values {EXIT_OK, EXIT_FAILED, EXIT_PARSE_ERROR};
43 /* These values discovered by inspection */
45 static const struct perm_value special_values[] = {
55 static const struct perm_value standard_values[] = {
56 { "READ", 0x001200a9 },
57 { "CHANGE", 0x001301bf },
58 { "FULL", 0x001f01ff },
62 /* Open cli connection and policy handle */
64 static NTSTATUS cli_lsa_lookup_sid(struct cli_state *cli,
67 enum lsa_SidType *type,
68 char **domain, char **name)
70 uint16 orig_cnum = cli->cnum;
71 struct rpc_pipe_client *p;
72 struct policy_handle handle;
74 TALLOC_CTX *frame = talloc_stackframe();
75 enum lsa_SidType *types;
79 if (!cli_send_tconX(cli, "IPC$", "?????", "", 0)) {
80 return cli_nt_error(cli);
83 p = cli_rpc_pipe_open_noauth(cli, PI_LSARPC, &status);
88 status = rpccli_lsa_open_policy(p, talloc_tos(), True,
89 GENERIC_EXECUTE_ACCESS, &handle);
90 if (!NT_STATUS_IS_OK(status)) {
94 status = rpccli_lsa_lookup_sids(p, talloc_tos(), &handle, 1, sid,
95 &domains, &names, &types);
96 if (!NT_STATUS_IS_OK(status)) {
101 *domain = talloc_move(mem_ctx, &domains[0]);
102 *name = talloc_move(mem_ctx, &names[0]);
104 status = NT_STATUS_OK;
108 cli->cnum = orig_cnum;
113 static NTSTATUS cli_lsa_lookup_name(struct cli_state *cli,
115 enum lsa_SidType *type,
118 uint16 orig_cnum = cli->cnum;
119 struct rpc_pipe_client *p;
120 struct policy_handle handle;
122 TALLOC_CTX *frame = talloc_stackframe();
124 enum lsa_SidType *types;
126 if (!cli_send_tconX(cli, "IPC$", "?????", "", 0)) {
127 return cli_nt_error(cli);
130 p = cli_rpc_pipe_open_noauth(cli, PI_LSARPC, &status);
135 status = rpccli_lsa_open_policy(p, talloc_tos(), True,
136 GENERIC_EXECUTE_ACCESS, &handle);
137 if (!NT_STATUS_IS_OK(status)) {
141 status = rpccli_lsa_lookup_names(p, talloc_tos(), &handle, 1, &name,
142 NULL, 1, &sids, &types);
143 if (!NT_STATUS_IS_OK(status)) {
150 status = NT_STATUS_OK;
154 cli->cnum = orig_cnum;
159 /* convert a SID to a string, either numeric or username/group */
160 static void SidToString(struct cli_state *cli, fstring str, const DOM_SID *sid)
164 enum lsa_SidType type;
167 sid_to_fstring(str, sid);
173 status = cli_lsa_lookup_sid(cli, sid, talloc_tos(), &type,
176 if (!NT_STATUS_IS_OK(status)) {
180 slprintf(str, sizeof(fstring) - 1, "%s%s%s",
181 domain, lp_winbind_separator(), name);
185 /* convert a string to a SID, either numeric or username/group */
186 static bool StringToSid(struct cli_state *cli, DOM_SID *sid, const char *str)
188 enum lsa_SidType type;
190 if (strncmp(str, "S-", 2) == 0) {
191 return string_to_sid(sid, str);
194 return NT_STATUS_IS_OK(cli_lsa_lookup_name(cli, str, &type, sid));
198 /* print an ACE on a FILE, using either numeric or ascii representation */
199 static void print_ace(struct cli_state *cli, FILE *f, SEC_ACE *ace)
201 const struct perm_value *v;
206 SidToString(cli, sidstr, &ace->trustee);
208 fprintf(f, "%s:", sidstr);
211 fprintf(f, "%d/%d/0x%08x",
212 ace->type, ace->flags, ace->access_mask);
218 if (ace->type == SEC_ACE_TYPE_ACCESS_ALLOWED) {
219 fprintf(f, "ALLOWED");
220 } else if (ace->type == SEC_ACE_TYPE_ACCESS_DENIED) {
221 fprintf(f, "DENIED");
223 fprintf(f, "%d", ace->type);
226 /* Not sure what flags can be set in a file ACL */
228 fprintf(f, "/%d/", ace->flags);
230 /* Standard permissions */
232 for (v = standard_values; v->perm; v++) {
233 if (ace->access_mask == v->mask) {
234 fprintf(f, "%s", v->perm);
239 /* Special permissions. Print out a hex value if we have
240 leftover bits in the mask. */
242 got_mask = ace->access_mask;
245 for (v = special_values; v->perm; v++) {
246 if ((ace->access_mask & v->mask) == v->mask) {
248 fprintf(f, "%s", v->perm);
250 got_mask &= ~v->mask;
256 fprintf(f, "0x%08x", ace->access_mask);
265 /* parse an ACE in the same format as print_ace() */
266 static bool parse_ace(struct cli_state *cli, SEC_ACE *ace,
267 const char *orig_str)
272 unsigned int atype = 0;
273 unsigned int aflags = 0;
274 unsigned int amask = 0;
277 const struct perm_value *v;
278 char *str = SMB_STRDUP(orig_str);
279 TALLOC_CTX *frame = talloc_stackframe();
287 p = strchr_m(str,':');
289 printf("ACE '%s': missing ':'.\n", orig_str);
296 /* Try to parse numeric form */
298 if (sscanf(p, "%i/%i/%i", &atype, &aflags, &amask) == 3 &&
299 StringToSid(cli, &sid, str)) {
303 /* Try to parse text form */
305 if (!StringToSid(cli, &sid, str)) {
306 printf("ACE '%s': failed to convert '%s' to SID\n",
314 if (!next_token_talloc(frame, &cp, &tok, "/")) {
315 printf("ACE '%s': failed to find '/' character.\n",
322 if (strncmp(tok, "ALLOWED", strlen("ALLOWED")) == 0) {
323 atype = SEC_ACE_TYPE_ACCESS_ALLOWED;
324 } else if (strncmp(tok, "DENIED", strlen("DENIED")) == 0) {
325 atype = SEC_ACE_TYPE_ACCESS_DENIED;
327 printf("ACE '%s': missing 'ALLOWED' or 'DENIED' entry at '%s'\n",
334 /* Only numeric form accepted for flags at present */
336 if (!(next_token_talloc(frame, &cp, &tok, "/") &&
337 sscanf(tok, "%i", &aflags))) {
338 printf("ACE '%s': bad integer flags entry at '%s'\n",
345 if (!next_token_talloc(frame, &cp, &tok, "/")) {
346 printf("ACE '%s': missing / at '%s'\n",
353 if (strncmp(tok, "0x", 2) == 0) {
354 if (sscanf(tok, "%i", &amask) != 1) {
355 printf("ACE '%s': bad hex number at '%s'\n",
364 for (v = standard_values; v->perm; v++) {
365 if (strcmp(tok, v->perm) == 0) {
376 for (v = special_values; v->perm; v++) {
377 if (v->perm[0] == *p) {
384 printf("ACE '%s': bad permission value at '%s'\n",
401 init_sec_ace(ace, &sid, atype, mask, aflags);
407 /* add an ACE to a list of ACEs in a SEC_ACL */
408 static bool add_ace(SEC_ACL **the_acl, SEC_ACE *ace)
413 return (((*the_acl) = make_sec_acl(talloc_tos(), 3, 1, ace))
417 if (!(aces = SMB_CALLOC_ARRAY(SEC_ACE, 1+(*the_acl)->num_aces))) {
420 memcpy(aces, (*the_acl)->aces, (*the_acl)->num_aces * sizeof(SEC_ACE));
421 memcpy(aces+(*the_acl)->num_aces, ace, sizeof(SEC_ACE));
422 new_ace = make_sec_acl(talloc_tos(),(*the_acl)->revision,1+(*the_acl)->num_aces, aces);
424 (*the_acl) = new_ace;
428 /* parse a ascii version of a security descriptor */
429 static SEC_DESC *sec_desc_parse(TALLOC_CTX *ctx, struct cli_state *cli, char *str)
433 SEC_DESC *ret = NULL;
435 DOM_SID *grp_sid=NULL, *owner_sid=NULL;
439 while (next_token_talloc(ctx, &p, &tok, "\t,\r\n")) {
440 if (strncmp(tok,"REVISION:", 9) == 0) {
441 revision = strtol(tok+9, NULL, 16);
445 if (strncmp(tok,"OWNER:", 6) == 0) {
447 printf("Only specify owner once\n");
450 owner_sid = SMB_CALLOC_ARRAY(DOM_SID, 1);
452 !StringToSid(cli, owner_sid, tok+6)) {
453 printf("Failed to parse owner sid\n");
459 if (strncmp(tok,"GROUP:", 6) == 0) {
461 printf("Only specify group once\n");
464 grp_sid = SMB_CALLOC_ARRAY(DOM_SID, 1);
466 !StringToSid(cli, grp_sid, tok+6)) {
467 printf("Failed to parse group sid\n");
473 if (strncmp(tok,"ACL:", 4) == 0) {
475 if (!parse_ace(cli, &ace, tok+4)) {
478 if(!add_ace(&dacl, &ace)) {
479 printf("Failed to add ACL %s\n", tok);
485 printf("Failed to parse token '%s' in security descriptor,\n", tok);
489 ret = make_sec_desc(ctx,revision, SEC_DESC_SELF_RELATIVE, owner_sid, grp_sid,
490 NULL, dacl, &sd_size);
494 SAFE_FREE(owner_sid);
500 /* print a ascii version of a security descriptor on a FILE handle */
501 static void sec_desc_print(struct cli_state *cli, FILE *f, SEC_DESC *sd)
506 fprintf(f, "REVISION:%d\n", sd->revision);
508 /* Print owner and group sid */
511 SidToString(cli, sidstr, sd->owner_sid);
516 fprintf(f, "OWNER:%s\n", sidstr);
519 SidToString(cli, sidstr, sd->group_sid);
524 fprintf(f, "GROUP:%s\n", sidstr);
527 for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
528 SEC_ACE *ace = &sd->dacl->aces[i];
530 print_ace(cli, f, ace);
536 /*****************************************************
537 dump the acls for a file
538 *******************************************************/
539 static int cacl_dump(struct cli_state *cli, char *filename)
541 int result = EXIT_FAILED;
548 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
551 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
555 sd = cli_query_secdesc(cli, fnum, talloc_tos());
558 printf("ERROR: secdesc query failed: %s\n", cli_errstr(cli));
562 sec_desc_print(cli, stdout, sd);
568 cli_close(cli, fnum);
573 /*****************************************************
574 Change the ownership or group ownership of a file. Just
575 because the NT docs say this can't be done :-). JRA.
576 *******************************************************/
578 static int owner_set(struct cli_state *cli, enum chown_mode change_mode,
579 const char *filename, const char *new_username)
586 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
589 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
593 if (!StringToSid(cli, &sid, new_username))
594 return EXIT_PARSE_ERROR;
596 old = cli_query_secdesc(cli, fnum, talloc_tos());
598 cli_close(cli, fnum);
601 printf("owner_set: Failed to query old descriptor\n");
605 sd = make_sec_desc(talloc_tos(),old->revision, old->type,
606 (change_mode == REQUEST_CHOWN) ? &sid : NULL,
607 (change_mode == REQUEST_CHGRP) ? &sid : NULL,
608 NULL, NULL, &sd_size);
610 fnum = cli_nt_create(cli, filename, WRITE_OWNER_ACCESS);
613 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
617 if (!cli_set_secdesc(cli, fnum, sd)) {
618 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
621 cli_close(cli, fnum);
627 /* The MSDN is contradictory over the ordering of ACE entries in an ACL.
628 However NT4 gives a "The information may have been modified by a
629 computer running Windows NT 5.0" if denied ACEs do not appear before
632 static int ace_compare(SEC_ACE *ace1, SEC_ACE *ace2)
634 if (sec_ace_equal(ace1, ace2))
637 if (ace1->type != ace2->type)
638 return ace2->type - ace1->type;
640 if (sid_compare(&ace1->trustee, &ace2->trustee))
641 return sid_compare(&ace1->trustee, &ace2->trustee);
643 if (ace1->flags != ace2->flags)
644 return ace1->flags - ace2->flags;
646 if (ace1->access_mask != ace2->access_mask)
647 return ace1->access_mask - ace2->access_mask;
649 if (ace1->size != ace2->size)
650 return ace1->size - ace2->size;
652 return memcmp(ace1, ace2, sizeof(SEC_ACE));
655 static void sort_acl(SEC_ACL *the_acl)
658 if (!the_acl) return;
660 qsort(the_acl->aces, the_acl->num_aces, sizeof(the_acl->aces[0]), QSORT_CAST ace_compare);
662 for (i=1;i<the_acl->num_aces;) {
663 if (sec_ace_equal(&the_acl->aces[i-1], &the_acl->aces[i])) {
665 for (j=i; j<the_acl->num_aces-1; j++) {
666 the_acl->aces[j] = the_acl->aces[j+1];
675 /*****************************************************
676 set the ACLs on a file given an ascii description
677 *******************************************************/
678 static int cacl_set(struct cli_state *cli, char *filename,
679 char *the_acl, enum acl_mode mode)
685 int result = EXIT_OK;
687 sd = sec_desc_parse(talloc_tos(), cli, the_acl);
689 if (!sd) return EXIT_PARSE_ERROR;
690 if (test_args) return EXIT_OK;
692 /* The desired access below is the only one I could find that works
693 with NT4, W2KP and Samba */
695 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
698 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
702 old = cli_query_secdesc(cli, fnum, talloc_tos());
705 printf("calc_set: Failed to query old descriptor\n");
709 cli_close(cli, fnum);
711 /* the logic here is rather more complex than I would like */
714 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
717 for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
718 if (sec_ace_equal(&sd->dacl->aces[i],
719 &old->dacl->aces[j])) {
721 for (k=j; k<old->dacl->num_aces-1;k++) {
722 old->dacl->aces[k] = old->dacl->aces[k+1];
724 old->dacl->num_aces--;
731 printf("ACL for ACE:");
732 print_ace(cli, stdout, &sd->dacl->aces[i]);
733 printf(" not found\n");
739 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
742 for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
743 if (sid_equal(&sd->dacl->aces[i].trustee,
744 &old->dacl->aces[j].trustee)) {
745 old->dacl->aces[j] = sd->dacl->aces[i];
753 SidToString(cli, str,
754 &sd->dacl->aces[i].trustee);
755 printf("ACL for SID %s not found\n", str);
760 old->owner_sid = sd->owner_sid;
764 old->group_sid = sd->group_sid;
770 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
771 add_ace(&old->dacl, &sd->dacl->aces[i]);
780 /* Denied ACE entries must come before allowed ones */
783 /* Create new security descriptor and set it */
785 /* We used to just have "WRITE_DAC_ACCESS" without WRITE_OWNER.
786 But if we're sending an owner, even if it's the same as the one
787 that already exists then W2K3 insists we open with WRITE_OWNER access.
788 I need to check that setting a SD with no owner set works against WNT
792 sd = make_sec_desc(talloc_tos(),old->revision, old->type,
793 old->owner_sid, old->group_sid,
794 NULL, old->dacl, &sd_size);
796 fnum = cli_nt_create(cli, filename, WRITE_DAC_ACCESS|WRITE_OWNER_ACCESS);
799 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
803 if (!cli_set_secdesc(cli, fnum, sd)) {
804 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
805 result = EXIT_FAILED;
810 cli_close(cli, fnum);
816 /*****************************************************
817 Return a connection to a server.
818 *******************************************************/
819 static struct cli_state *connect_one(const char *server, const char *share)
821 struct cli_state *c = NULL;
822 struct sockaddr_storage ss;
828 if (get_cmdline_auth_info_use_kerberos()) {
829 flags |= CLI_FULL_CONNECTION_USE_KERBEROS |
830 CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
833 if (get_cmdline_auth_info_use_machine_account() &&
834 !set_cmdline_auth_info_machine_account_creds()) {
838 if (!get_cmdline_auth_info_got_pass()) {
839 char *pass = getpass("Password: ");
841 set_cmdline_auth_info_password(pass);
845 nt_status = cli_full_connection(&c, global_myname(), server,
848 get_cmdline_auth_info_username(),
850 get_cmdline_auth_info_password(),
852 get_cmdline_auth_info_signing_state(),
854 if (!NT_STATUS_IS_OK(nt_status)) {
855 DEBUG(0,("cli_full_connection failed! (%s)\n", nt_errstr(nt_status)));
859 if (get_cmdline_auth_info_smb_encrypt()) {
860 nt_status = cli_cm_force_encryption(c,
861 get_cmdline_auth_info_username(),
862 get_cmdline_auth_info_password(),
865 if (!NT_STATUS_IS_OK(nt_status)) {
874 /****************************************************************************
876 ****************************************************************************/
877 int main(int argc, const char *argv[])
881 enum acl_mode mode = SMB_ACL_SET;
882 static char *the_acl = NULL;
883 enum chown_mode change_mode = REQUEST_NONE;
886 char *filename = NULL;
888 struct poptOption long_options[] = {
890 { "delete", 'D', POPT_ARG_STRING, NULL, 'D', "Delete an acl", "ACL" },
891 { "modify", 'M', POPT_ARG_STRING, NULL, 'M', "Modify an acl", "ACL" },
892 { "add", 'a', POPT_ARG_STRING, NULL, 'a', "Add an acl", "ACL" },
893 { "set", 'S', POPT_ARG_STRING, NULL, 'S', "Set acls", "ACLS" },
894 { "chown", 'C', POPT_ARG_STRING, NULL, 'C', "Change ownership of a file", "USERNAME" },
895 { "chgrp", 'G', POPT_ARG_STRING, NULL, 'G', "Change group ownership of a file", "GROUPNAME" },
896 { "numeric", 0, POPT_ARG_NONE, &numeric, True, "Don't resolve sids or masks to names" },
897 { "test-args", 't', POPT_ARG_NONE, &test_args, True, "Test arguments"},
899 POPT_COMMON_CONNECTION
900 POPT_COMMON_CREDENTIALS
904 struct cli_state *cli;
905 TALLOC_CTX *frame = talloc_stackframe();
906 const char *owner_username = "";
912 /* set default debug level to 1 regardless of what smb.conf sets */
913 setup_logging( "smbcacls", True );
914 DEBUGLEVEL_CLASS[DBGC_ALL] = 1;
916 x_setbuf( x_stderr, NULL );
920 lp_load(get_dyn_CONFIGFILE(),True,False,False,True);
923 pc = poptGetContext("smbcacls", argc, argv, long_options, 0);
925 poptSetOtherOptionHelp(pc, "//server1/share1 filename\nACLs look like: "
926 "'ACL:user:[ALLOWED|DENIED]/flags/permissions'");
928 while ((opt = poptGetNextOpt(pc)) != -1) {
931 the_acl = smb_xstrdup(poptGetOptArg(pc));
936 the_acl = smb_xstrdup(poptGetOptArg(pc));
937 mode = SMB_ACL_DELETE;
941 the_acl = smb_xstrdup(poptGetOptArg(pc));
942 mode = SMB_ACL_MODIFY;
946 the_acl = smb_xstrdup(poptGetOptArg(pc));
951 owner_username = poptGetOptArg(pc);
952 change_mode = REQUEST_CHOWN;
956 owner_username = poptGetOptArg(pc);
957 change_mode = REQUEST_CHGRP;
962 /* Make connection to server */
963 if(!poptPeekArg(pc)) {
964 poptPrintUsage(pc, stderr, 0);
968 path = talloc_strdup(frame, poptGetArg(pc));
973 if(!poptPeekArg(pc)) {
974 poptPrintUsage(pc, stderr, 0);
978 filename = talloc_strdup(frame, poptGetArg(pc));
983 string_replace(path,'/','\\');
985 server = talloc_strdup(frame, path+2);
989 share = strchr_m(server,'\\');
991 printf("Invalid argument: %s\n", share);
999 cli = connect_one(server, share);
1007 string_replace(filename, '/', '\\');
1008 if (filename[0] != '\\') {
1009 filename = talloc_asprintf(frame,
1017 /* Perform requested action */
1019 if (change_mode != REQUEST_NONE) {
1020 result = owner_set(cli, change_mode, filename, owner_username);
1021 } else if (the_acl) {
1022 result = cacl_set(cli, filename, the_acl, mode);
1024 result = cacl_dump(cli, filename);