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$", "?????", "", 0)) {
80 return cli_nt_error(cli);
83 p = cli_rpc_pipe_open_noauth(cli, PI_LSARPC, &status);
88 status = rpccli_lsa_open_policy(p, talloc_tos(), True,
89 GENERIC_EXECUTE_ACCESS, &handle);
90 if (!NT_STATUS_IS_OK(status)) {
94 status = rpccli_lsa_lookup_sids(p, talloc_tos(), &handle, 1, sid,
95 &domains, &names, &types);
96 if (!NT_STATUS_IS_OK(status)) {
101 *domain = talloc_move(mem_ctx, &domains[0]);
102 *name = talloc_move(mem_ctx, &names[0]);
104 status = NT_STATUS_OK;
107 cli_rpc_pipe_close(p);
110 cli->cnum = orig_cnum;
115 static NTSTATUS cli_lsa_lookup_name(struct cli_state *cli,
117 enum lsa_SidType *type,
120 uint16 orig_cnum = cli->cnum;
121 struct rpc_pipe_client *p;
122 struct policy_handle handle;
124 TALLOC_CTX *frame = talloc_stackframe();
126 enum lsa_SidType *types;
128 if (!cli_send_tconX(cli, "IPC$", "?????", "", 0)) {
129 return cli_nt_error(cli);
132 p = cli_rpc_pipe_open_noauth(cli, PI_LSARPC, &status);
137 status = rpccli_lsa_open_policy(p, talloc_tos(), True,
138 GENERIC_EXECUTE_ACCESS, &handle);
139 if (!NT_STATUS_IS_OK(status)) {
143 status = rpccli_lsa_lookup_names(p, talloc_tos(), &handle, 1, &name,
144 NULL, 1, &sids, &types);
145 if (!NT_STATUS_IS_OK(status)) {
152 status = NT_STATUS_OK;
155 cli_rpc_pipe_close(p);
158 cli->cnum = orig_cnum;
163 /* convert a SID to a string, either numeric or username/group */
164 static void SidToString(struct cli_state *cli, fstring str, const DOM_SID *sid)
168 enum lsa_SidType type;
171 sid_to_string(str, sid);
177 status = cli_lsa_lookup_sid(cli, sid, talloc_tos(), &type,
180 if (!NT_STATUS_IS_OK(status)) {
184 slprintf(str, sizeof(fstring) - 1, "%s%s%s",
185 domain, lp_winbind_separator(), name);
189 /* convert a string to a SID, either numeric or username/group */
190 static bool StringToSid(struct cli_state *cli, DOM_SID *sid, const char *str)
192 enum lsa_SidType type;
194 if (strncmp(str, "S-", 2) == 0) {
195 return string_to_sid(sid, str);
198 return NT_STATUS_IS_OK(cli_lsa_lookup_name(cli, str, &type, sid));
202 /* print an ACE on a FILE, using either numeric or ascii representation */
203 static void print_ace(struct cli_state *cli, FILE *f, SEC_ACE *ace)
205 const struct perm_value *v;
210 SidToString(cli, sidstr, &ace->trustee);
212 fprintf(f, "%s:", sidstr);
215 fprintf(f, "%d/%d/0x%08x",
216 ace->type, ace->flags, ace->access_mask);
222 if (ace->type == SEC_ACE_TYPE_ACCESS_ALLOWED) {
223 fprintf(f, "ALLOWED");
224 } else if (ace->type == SEC_ACE_TYPE_ACCESS_DENIED) {
225 fprintf(f, "DENIED");
227 fprintf(f, "%d", ace->type);
230 /* Not sure what flags can be set in a file ACL */
232 fprintf(f, "/%d/", ace->flags);
234 /* Standard permissions */
236 for (v = standard_values; v->perm; v++) {
237 if (ace->access_mask == v->mask) {
238 fprintf(f, "%s", v->perm);
243 /* Special permissions. Print out a hex value if we have
244 leftover bits in the mask. */
246 got_mask = ace->access_mask;
249 for (v = special_values; v->perm; v++) {
250 if ((ace->access_mask & v->mask) == v->mask) {
252 fprintf(f, "%s", v->perm);
254 got_mask &= ~v->mask;
260 fprintf(f, "0x%08x", ace->access_mask);
269 /* parse an ACE in the same format as print_ace() */
270 static bool parse_ace(struct cli_state *cli, SEC_ACE *ace,
271 const char *orig_str)
276 unsigned int atype = 0;
277 unsigned int aflags = 0;
278 unsigned int amask = 0;
281 const struct perm_value *v;
282 char *str = SMB_STRDUP(orig_str);
289 p = strchr_m(str,':');
291 printf("ACE '%s': missing ':'.\n", orig_str);
297 /* Try to parse numeric form */
299 if (sscanf(p, "%i/%i/%i", &atype, &aflags, &amask) == 3 &&
300 StringToSid(cli, &sid, str)) {
304 /* Try to parse text form */
306 if (!StringToSid(cli, &sid, str)) {
307 printf("ACE '%s': failed to convert '%s' to SID\n",
314 if (!next_token(&cp, tok, "/", sizeof(fstring))) {
315 printf("ACE '%s': failed to find '/' character.\n",
321 if (strncmp(tok, "ALLOWED", strlen("ALLOWED")) == 0) {
322 atype = SEC_ACE_TYPE_ACCESS_ALLOWED;
323 } else if (strncmp(tok, "DENIED", strlen("DENIED")) == 0) {
324 atype = SEC_ACE_TYPE_ACCESS_DENIED;
326 printf("ACE '%s': missing 'ALLOWED' or 'DENIED' entry at '%s'\n",
332 /* Only numeric form accepted for flags at present */
334 if (!(next_token(&cp, tok, "/", sizeof(fstring)) &&
335 sscanf(tok, "%i", &aflags))) {
336 printf("ACE '%s': bad integer flags entry at '%s'\n",
342 if (!next_token(&cp, tok, "/", sizeof(fstring))) {
343 printf("ACE '%s': missing / at '%s'\n",
349 if (strncmp(tok, "0x", 2) == 0) {
350 if (sscanf(tok, "%i", &amask) != 1) {
351 printf("ACE '%s': bad hex number at '%s'\n",
359 for (v = standard_values; v->perm; v++) {
360 if (strcmp(tok, v->perm) == 0) {
371 for (v = special_values; v->perm; v++) {
372 if (v->perm[0] == *p) {
379 printf("ACE '%s': bad permission value at '%s'\n",
394 init_sec_ace(ace, &sid, atype, mask, aflags);
399 /* add an ACE to a list of ACEs in a SEC_ACL */
400 static bool add_ace(SEC_ACL **the_acl, SEC_ACE *ace)
405 return (((*the_acl) = make_sec_acl(talloc_tos(), 3, 1, ace))
409 if (!(aces = SMB_CALLOC_ARRAY(SEC_ACE, 1+(*the_acl)->num_aces))) {
412 memcpy(aces, (*the_acl)->aces, (*the_acl)->num_aces * sizeof(SEC_ACE));
413 memcpy(aces+(*the_acl)->num_aces, ace, sizeof(SEC_ACE));
414 new_ace = make_sec_acl(talloc_tos(),(*the_acl)->revision,1+(*the_acl)->num_aces, aces);
416 (*the_acl) = new_ace;
420 /* parse a ascii version of a security descriptor */
421 static SEC_DESC *sec_desc_parse(struct cli_state *cli, char *str)
425 SEC_DESC *ret = NULL;
427 DOM_SID *grp_sid=NULL, *owner_sid=NULL;
431 while (next_token(&p, tok, "\t,\r\n", sizeof(tok))) {
433 if (strncmp(tok,"REVISION:", 9) == 0) {
434 revision = strtol(tok+9, NULL, 16);
438 if (strncmp(tok,"OWNER:", 6) == 0) {
440 printf("Only specify owner once\n");
443 owner_sid = SMB_CALLOC_ARRAY(DOM_SID, 1);
445 !StringToSid(cli, owner_sid, tok+6)) {
446 printf("Failed to parse owner sid\n");
452 if (strncmp(tok,"GROUP:", 6) == 0) {
454 printf("Only specify group once\n");
457 grp_sid = SMB_CALLOC_ARRAY(DOM_SID, 1);
459 !StringToSid(cli, grp_sid, tok+6)) {
460 printf("Failed to parse group sid\n");
466 if (strncmp(tok,"ACL:", 4) == 0) {
468 if (!parse_ace(cli, &ace, tok+4)) {
471 if(!add_ace(&dacl, &ace)) {
472 printf("Failed to add ACL %s\n", tok);
478 printf("Failed to parse token '%s' in security descriptor,\n", tok);
482 ret = make_sec_desc(talloc_tos(),revision, SEC_DESC_SELF_RELATIVE, owner_sid, grp_sid,
483 NULL, dacl, &sd_size);
487 SAFE_FREE(owner_sid);
493 /* print a ascii version of a security descriptor on a FILE handle */
494 static void sec_desc_print(struct cli_state *cli, FILE *f, SEC_DESC *sd)
499 fprintf(f, "REVISION:%d\n", sd->revision);
501 /* Print owner and group sid */
504 SidToString(cli, sidstr, sd->owner_sid);
509 fprintf(f, "OWNER:%s\n", sidstr);
512 SidToString(cli, sidstr, sd->group_sid);
517 fprintf(f, "GROUP:%s\n", sidstr);
520 for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
521 SEC_ACE *ace = &sd->dacl->aces[i];
523 print_ace(cli, f, ace);
529 /*****************************************************
530 dump the acls for a file
531 *******************************************************/
532 static int cacl_dump(struct cli_state *cli, char *filename)
534 int result = EXIT_FAILED;
541 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
544 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
548 sd = cli_query_secdesc(cli, fnum, talloc_tos());
551 printf("ERROR: secdesc query failed: %s\n", cli_errstr(cli));
555 sec_desc_print(cli, stdout, sd);
561 cli_close(cli, fnum);
566 /*****************************************************
567 Change the ownership or group ownership of a file. Just
568 because the NT docs say this can't be done :-). JRA.
569 *******************************************************/
571 static int owner_set(struct cli_state *cli, enum chown_mode change_mode,
572 char *filename, char *new_username)
579 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
582 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
586 if (!StringToSid(cli, &sid, new_username))
587 return EXIT_PARSE_ERROR;
589 old = cli_query_secdesc(cli, fnum, talloc_tos());
591 cli_close(cli, fnum);
594 printf("owner_set: Failed to query old descriptor\n");
598 sd = make_sec_desc(talloc_tos(),old->revision, old->type,
599 (change_mode == REQUEST_CHOWN) ? &sid : NULL,
600 (change_mode == REQUEST_CHGRP) ? &sid : NULL,
601 NULL, NULL, &sd_size);
603 fnum = cli_nt_create(cli, filename, WRITE_OWNER_ACCESS);
606 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
610 if (!cli_set_secdesc(cli, fnum, sd)) {
611 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
614 cli_close(cli, fnum);
620 /* The MSDN is contradictory over the ordering of ACE entries in an ACL.
621 However NT4 gives a "The information may have been modified by a
622 computer running Windows NT 5.0" if denied ACEs do not appear before
625 static int ace_compare(SEC_ACE *ace1, SEC_ACE *ace2)
627 if (sec_ace_equal(ace1, ace2))
630 if (ace1->type != ace2->type)
631 return ace2->type - ace1->type;
633 if (sid_compare(&ace1->trustee, &ace2->trustee))
634 return sid_compare(&ace1->trustee, &ace2->trustee);
636 if (ace1->flags != ace2->flags)
637 return ace1->flags - ace2->flags;
639 if (ace1->access_mask != ace2->access_mask)
640 return ace1->access_mask - ace2->access_mask;
642 if (ace1->size != ace2->size)
643 return ace1->size - ace2->size;
645 return memcmp(ace1, ace2, sizeof(SEC_ACE));
648 static void sort_acl(SEC_ACL *the_acl)
651 if (!the_acl) return;
653 qsort(the_acl->aces, the_acl->num_aces, sizeof(the_acl->aces[0]), QSORT_CAST ace_compare);
655 for (i=1;i<the_acl->num_aces;) {
656 if (sec_ace_equal(&the_acl->aces[i-1], &the_acl->aces[i])) {
658 for (j=i; j<the_acl->num_aces-1; j++) {
659 the_acl->aces[j] = the_acl->aces[j+1];
668 /*****************************************************
669 set the ACLs on a file given an ascii description
670 *******************************************************/
671 static int cacl_set(struct cli_state *cli, char *filename,
672 char *the_acl, enum acl_mode mode)
678 int result = EXIT_OK;
680 sd = sec_desc_parse(cli, the_acl);
682 if (!sd) return EXIT_PARSE_ERROR;
683 if (test_args) return EXIT_OK;
685 /* The desired access below is the only one I could find that works
686 with NT4, W2KP and Samba */
688 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
691 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
695 old = cli_query_secdesc(cli, fnum, talloc_tos());
698 printf("calc_set: Failed to query old descriptor\n");
702 cli_close(cli, fnum);
704 /* the logic here is rather more complex than I would like */
707 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
710 for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
711 if (sec_ace_equal(&sd->dacl->aces[i],
712 &old->dacl->aces[j])) {
714 for (k=j; k<old->dacl->num_aces-1;k++) {
715 old->dacl->aces[k] = old->dacl->aces[k+1];
717 old->dacl->num_aces--;
724 printf("ACL for ACE:");
725 print_ace(cli, stdout, &sd->dacl->aces[i]);
726 printf(" not found\n");
732 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
735 for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
736 if (sid_equal(&sd->dacl->aces[i].trustee,
737 &old->dacl->aces[j].trustee)) {
738 old->dacl->aces[j] = sd->dacl->aces[i];
746 SidToString(cli, str,
747 &sd->dacl->aces[i].trustee);
748 printf("ACL for SID %s not found\n", str);
753 old->owner_sid = sd->owner_sid;
757 old->group_sid = sd->group_sid;
763 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
764 add_ace(&old->dacl, &sd->dacl->aces[i]);
773 /* Denied ACE entries must come before allowed ones */
776 /* Create new security descriptor and set it */
778 /* We used to just have "WRITE_DAC_ACCESS" without WRITE_OWNER.
779 But if we're sending an owner, even if it's the same as the one
780 that already exists then W2K3 insists we open with WRITE_OWNER access.
781 I need to check that setting a SD with no owner set works against WNT
785 sd = make_sec_desc(talloc_tos(),old->revision, old->type,
786 old->owner_sid, old->group_sid,
787 NULL, old->dacl, &sd_size);
789 fnum = cli_nt_create(cli, filename, WRITE_DAC_ACCESS|WRITE_OWNER_ACCESS);
792 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
796 if (!cli_set_secdesc(cli, fnum, sd)) {
797 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
798 result = EXIT_FAILED;
803 cli_close(cli, fnum);
809 /*****************************************************
810 Return a connection to a server.
811 *******************************************************/
812 static struct cli_state *connect_one(const char *server, const char *share)
815 struct sockaddr_storage ss;
819 if (!cmdline_auth_info.got_pass) {
820 char *pass = getpass("Password: ");
822 pstrcpy(cmdline_auth_info.password, pass);
823 cmdline_auth_info.got_pass = True;
827 if (NT_STATUS_IS_OK(nt_status = cli_full_connection(&c, global_myname(), server,
830 cmdline_auth_info.username, lp_workgroup(),
831 cmdline_auth_info.password, 0,
832 cmdline_auth_info.signing_state, NULL))) {
835 DEBUG(0,("cli_full_connection failed! (%s)\n", nt_errstr(nt_status)));
840 /****************************************************************************
842 ****************************************************************************/
843 int main(int argc, const char *argv[])
847 enum acl_mode mode = SMB_ACL_SET;
848 static char *the_acl = NULL;
849 enum chown_mode change_mode = REQUEST_NONE;
854 struct poptOption long_options[] = {
856 { "delete", 'D', POPT_ARG_STRING, NULL, 'D', "Delete an acl", "ACL" },
857 { "modify", 'M', POPT_ARG_STRING, NULL, 'M', "Modify an acl", "ACL" },
858 { "add", 'a', POPT_ARG_STRING, NULL, 'a', "Add an acl", "ACL" },
859 { "set", 'S', POPT_ARG_STRING, NULL, 'S', "Set acls", "ACLS" },
860 { "chown", 'C', POPT_ARG_STRING, NULL, 'C', "Change ownership of a file", "USERNAME" },
861 { "chgrp", 'G', POPT_ARG_STRING, NULL, 'G', "Change group ownership of a file", "GROUPNAME" },
862 { "numeric", 0, POPT_ARG_NONE, &numeric, True, "Don't resolve sids or masks to names" },
863 { "test-args", 't', POPT_ARG_NONE, &test_args, True, "Test arguments"},
865 POPT_COMMON_CREDENTIALS
869 struct cli_state *cli;
871 pstring owner_username;
874 owner_username[0] = '\0';
878 frame = talloc_stackframe();
880 /* set default debug level to 1 regardless of what smb.conf sets */
881 setup_logging( "smbcacls", True );
882 DEBUGLEVEL_CLASS[DBGC_ALL] = 1;
884 x_setbuf( x_stderr, NULL );
888 lp_load(dyn_CONFIGFILE,True,False,False,True);
891 pc = poptGetContext("smbcacls", argc, argv, long_options, 0);
893 poptSetOtherOptionHelp(pc, "//server1/share1 filename\nACLs look like: "
894 "'ACL:user:[ALLOWED|DENIED]/flags/permissions'");
896 while ((opt = poptGetNextOpt(pc)) != -1) {
899 the_acl = smb_xstrdup(poptGetOptArg(pc));
904 the_acl = smb_xstrdup(poptGetOptArg(pc));
905 mode = SMB_ACL_DELETE;
909 the_acl = smb_xstrdup(poptGetOptArg(pc));
910 mode = SMB_ACL_MODIFY;
914 the_acl = smb_xstrdup(poptGetOptArg(pc));
919 pstrcpy(owner_username,poptGetOptArg(pc));
920 change_mode = REQUEST_CHOWN;
924 pstrcpy(owner_username,poptGetOptArg(pc));
925 change_mode = REQUEST_CHGRP;
930 /* Make connection to server */
931 if(!poptPeekArg(pc)) {
932 poptPrintUsage(pc, stderr, 0);
936 fstrcpy(path, poptGetArg(pc));
938 if(!poptPeekArg(pc)) {
939 poptPrintUsage(pc, stderr, 0);
943 pstrcpy(filename, poptGetArg(pc));
945 all_string_sub(path,"/","\\",0);
947 fstrcpy(server,path+2);
948 share = strchr_m(server,'\\');
950 printf("Invalid argument: %s\n", share);
958 cli = connect_one(server, share);
967 all_string_sub(filename, "/", "\\", 0);
968 if (filename[0] != '\\') {
971 safe_strcpy(&s[1], filename, sizeof(pstring)-2);
972 pstrcpy(filename, s);
975 /* Perform requested action */
977 if (change_mode != REQUEST_NONE) {
978 result = owner_set(cli, change_mode, filename, owner_username);
979 } else if (the_acl) {
980 result = cacl_set(cli, filename, the_acl, mode);
982 result = cacl_dump(cli, filename);