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 (cli_lsa_open_policy(&lsa_cli, lsa_cli.mem_ctx, True,
96 GENERIC_EXECUTE_ACCESS, &pol)
97 != NT_STATUS_NOPROBLEMO) {
101 got_policy_hnd = True;
107 /* convert a SID to a string, either numeric or username/group */
108 static void SidToString(fstring str, DOM_SID *sid)
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 cli_lsa_lookup_sids(&lsa_cli, lsa_cli.mem_ctx, &pol, 1, sid, &names, &types,
122 &num_names) != NT_STATUS_NOPROBLEMO ||
123 !names || !names[0]) {
129 fstrcpy(str, names[0]);
132 /* convert a string to a SID, either numeric or username/group */
133 static BOOL StringToSid(DOM_SID *sid, char *str)
135 uint32 *types = NULL;
136 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 cli_lsa_lookup_names(&lsa_cli, lsa_cli.mem_ctx, &pol, 1, &str, &sids, &types,
146 &num_sids) != NT_STATUS_NOPROBLEMO) {
151 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 struct perm_value *v;
167 SidToString(sidstr, &ace->sid);
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)
231 unsigned atype, aflags, amask;
234 struct perm_value *v;
238 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)) {
255 if (!next_token(&p, tok, "/", sizeof(fstring))) {
259 if (strncmp(tok, "ALLOWED", strlen("ALLOWED")) == 0) {
260 atype = SEC_ACE_TYPE_ACCESS_ALLOWED;
261 } else if (strncmp(tok, "DENIED", strlen("DENIED")) == 0) {
262 atype = SEC_ACE_TYPE_ACCESS_DENIED;
267 /* Only numeric form accepted for flags at present */
269 if (!(next_token(&p, tok, "/", sizeof(fstring)) &&
270 sscanf(tok, "%i", &aflags))) {
274 if (!next_token(&p, tok, "/", sizeof(fstring))) {
278 if (strncmp(tok, "0x", 2) == 0) {
279 if (sscanf(tok, "%i", &amask) != 1) {
285 for (v = standard_values; v->perm; v++) {
286 if (strcmp(tok, v->perm) == 0) {
297 for (v = special_values; v->perm; v++) {
298 if (v->perm[0] == *p) {
304 if (!found) return False;
314 init_sec_ace(ace, &sid, atype, mask, aflags);
318 /* add an ACE to a list of ACEs in a SEC_ACL */
319 static BOOL add_ace(SEC_ACL **the_acl, SEC_ACE *ace)
324 (*the_acl) = make_sec_acl(ctx, 3, 1, ace);
328 aces = calloc(1+(*the_acl)->num_aces,sizeof(SEC_ACE));
329 memcpy(aces, (*the_acl)->ace, (*the_acl)->num_aces * sizeof(SEC_ACE));
330 memcpy(aces+(*the_acl)->num_aces, ace, sizeof(SEC_ACE));
331 new = make_sec_acl(ctx,(*the_acl)->revision,1+(*the_acl)->num_aces, aces);
337 /* parse a ascii version of a security descriptor */
338 static SEC_DESC *sec_desc_parse(char *str)
344 DOM_SID *grp_sid=NULL, *owner_sid=NULL;
348 while (next_token(&p, tok, "\t,\r\n", sizeof(tok))) {
350 if (strncmp(tok,"REVISION:", 9) == 0) {
351 revision = strtol(tok+9, NULL, 16);
355 if (strncmp(tok,"OWNER:", 6) == 0) {
356 owner_sid = (DOM_SID *)calloc(1, sizeof(DOM_SID));
358 !StringToSid(owner_sid, tok+6)) {
359 printf("Failed to parse owner sid\n");
365 if (strncmp(tok,"GROUP:", 6) == 0) {
366 grp_sid = (DOM_SID *)calloc(1, sizeof(DOM_SID));
368 !StringToSid(grp_sid, tok+6)) {
369 printf("Failed to parse group sid\n");
375 if (strncmp(tok,"ACL:", 4) == 0) {
377 if (!parse_ace(&ace, tok+4)) {
378 printf("Failed to parse ACL %s\n", tok);
381 if(!add_ace(&dacl, &ace)) {
382 printf("Failed to add ACL %s\n", tok);
388 printf("Failed to parse security descriptor\n");
392 ret = make_sec_desc(ctx,revision, owner_sid, grp_sid,
393 NULL, dacl, &sd_size);
395 if (grp_sid) free(grp_sid);
396 if (owner_sid) free(owner_sid);
402 /* print a ascii version of a security descriptor on a FILE handle */
403 static void sec_desc_print(FILE *f, SEC_DESC *sd)
408 printf("REVISION:%d\n", sd->revision);
410 /* Print owner and group sid */
413 SidToString(sidstr, sd->owner_sid);
418 printf("OWNER:%s\n", sidstr);
421 SidToString(sidstr, sd->grp_sid);
426 fprintf(f, "GROUP:%s\n", sidstr);
429 for (i = 0; sd->dacl && i < sd->dacl->num_aces; i++) {
430 SEC_ACE *ace = &sd->dacl->ace[i];
438 /*****************************************************
439 dump the acls for a file
440 *******************************************************/
441 static int cacl_dump(struct cli_state *cli, char *filename)
446 if (test_args) return EXIT_OK;
448 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
450 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
454 sd = cli_query_secdesc(cli, fnum, ctx);
457 printf("ERROR: secdesc query failed: %s\n", cli_errstr(cli));
461 sec_desc_print(stdout, sd);
463 cli_close(cli, fnum);
468 /*****************************************************
469 Change the ownership or group ownership of a file. Just
470 because the NT docs say this can't be done :-). JRA.
471 *******************************************************/
473 static int owner_set(struct cli_state *cli, enum chown_mode change_mode,
474 char *filename, char *new_username)
481 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
484 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
488 if (!StringToSid(&sid, new_username))
489 return EXIT_PARSE_ERROR;
491 old = cli_query_secdesc(cli, fnum, ctx);
493 cli_close(cli, fnum);
496 printf("owner_set: Failed to query old descriptor\n");
500 sd = make_sec_desc(ctx,old->revision,
501 (change_mode == REQUEST_CHOWN) ? &sid : old->owner_sid,
502 (change_mode == REQUEST_CHGRP) ? &sid : old->grp_sid,
503 NULL, old->dacl, &sd_size);
505 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_WRITE);
508 printf("Failed to open %s: %s\n", filename, cli_errstr(cli));
512 if (!cli_set_secdesc(cli, fnum, sd)) {
513 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
516 cli_close(cli, fnum);
522 /* The MSDN is contradictory over the ordering of ACE entries in an ACL.
523 However NT4 gives a "The information may have been modified by a
524 computer running Windows NT 5.0" if denied ACEs do not appear before
527 static int ace_compare(SEC_ACE *ace1, SEC_ACE *ace2)
529 if (sec_ace_equal(ace1, ace2)) return 0;
530 if (ace1->type != ace2->type) return ace2->type - ace1->type;
531 if (sid_compare(&ace1->sid, &ace2->sid)) return sid_compare(&ace1->sid, &ace2->sid);
532 if (ace1->flags != ace2->flags) return ace1->flags - ace2->flags;
533 if (ace1->info.mask != ace2->info.mask) return ace1->info.mask - ace2->info.mask;
534 if (ace1->size != ace2->size) return ace1->size - ace2->size;
535 return memcmp(ace1, ace2, sizeof(SEC_ACE));
538 static void sort_acl(SEC_ACL *the_acl)
541 if (!the_acl) return;
543 qsort(the_acl->ace, the_acl->num_aces, sizeof(the_acl->ace[0]), QSORT_CAST ace_compare);
545 for (i=1;i<the_acl->num_aces;) {
546 if (sec_ace_equal(&the_acl->ace[i-1], &the_acl->ace[i])) {
548 for (j=i; j<the_acl->num_aces-1; j++) {
549 the_acl->ace[j] = the_acl->ace[j+1];
558 /*****************************************************
559 set the ACLs on a file given an ascii description
560 *******************************************************/
561 static int cacl_set(struct cli_state *cli, char *filename,
562 char *the_acl, enum acl_mode mode)
568 int result = EXIT_OK;
570 sd = sec_desc_parse(the_acl);
572 if (!sd) return EXIT_PARSE_ERROR;
573 if (test_args) return EXIT_OK;
575 /* The desired access below is the only one I could find that works
576 with NT4, W2KP and Samba */
578 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_READ);
581 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
585 old = cli_query_secdesc(cli, fnum, ctx);
588 printf("calc_set: Failed to query old descriptor\n");
592 cli_close(cli, fnum);
594 /* the logic here is rather more complex than I would like */
597 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
600 for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
601 if (sec_ace_equal(&sd->dacl->ace[i],
602 &old->dacl->ace[j])) {
604 for (k=j; k<old->dacl->num_aces-1;k++) {
605 old->dacl->ace[k] = old->dacl->ace[k+1];
607 old->dacl->num_aces--;
608 if (old->dacl->num_aces == 0) {
609 free(old->dacl->ace);
621 printf("ACL for ACE:");
622 print_ace(stdout, &sd->dacl->ace[i]);
623 printf(" not found\n");
629 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
632 for (j=0;old->dacl && j<old->dacl->num_aces;j++) {
633 if (sid_equal(&sd->dacl->ace[i].sid,
634 &old->dacl->ace[j].sid)) {
635 old->dacl->ace[j] = sd->dacl->ace[i];
643 SidToString(str, &sd->dacl->ace[i].sid);
644 printf("ACL for SID %s not found\n", str);
651 for (i=0;sd->dacl && i<sd->dacl->num_aces;i++) {
652 add_ace(&old->dacl, &sd->dacl->ace[i]);
661 /* Denied ACE entries must come before allowed ones */
664 /* Create new security descriptor and set it */
665 sd = make_sec_desc(ctx,old->revision, old->owner_sid, old->grp_sid,
666 NULL, old->dacl, &sd_size);
668 fnum = cli_nt_create(cli, filename, CREATE_ACCESS_WRITE);
671 printf("cacl_set failed to open %s: %s\n", filename, cli_errstr(cli));
675 if (!cli_set_secdesc(cli, fnum, sd)) {
676 printf("ERROR: secdesc set failed: %s\n", cli_errstr(cli));
677 result = EXIT_FAILED;
682 cli_close(cli, fnum);
688 /*****************************************************
689 return a connection to a server
690 *******************************************************/
691 struct cli_state *connect_one(char *share)
694 struct nmb_name called, calling;
697 extern struct in_addr ipzero;
698 extern pstring global_myname;
700 fstrcpy(server,share+2);
701 share = strchr(server,'\\');
702 if (!share) return NULL;
710 make_nmb_name(&calling, global_myname, 0x0);
711 make_nmb_name(&called , server, 0x20);
716 /* have to open a new connection */
717 if (!(c=cli_initialise(NULL)) || (cli_set_port(c, 139) == 0) ||
718 !cli_connect(c, server_n, &ip)) {
719 DEBUG(0,("Connection to %s failed\n", server_n));
725 if (!cli_session_request(c, &calling, &called)) {
726 DEBUG(0,("session request to %s failed\n", called.name));
729 if (strcmp(called.name, "*SMBSERVER")) {
730 make_nmb_name(&called , "*SMBSERVER", 0x20);
736 DEBUG(4,(" session request ok\n"));
738 if (!cli_negprot(c)) {
739 DEBUG(0,("protocol negotiation failed\n"));
746 char *pass = getpass("Password: ");
748 pstrcpy(password, pass);
752 if (!cli_session_setup(c, username,
753 password, strlen(password),
754 password, strlen(password),
756 DEBUG(0,("session setup failed: %s\n", cli_errstr(c)));
762 DEBUG(4,(" session setup ok\n"));
764 if (!cli_send_tconX(c, share, "?????",
765 password, strlen(password)+1)) {
766 DEBUG(0,("tree connect failed: %s\n", cli_errstr(c)));
772 DEBUG(4,(" tconx ok\n"));
778 static void usage(void)
781 "Usage: smbcacls //server1/share1 filename [options]\n\
783 \t-D <acls> delete an acl\n\
784 \t-M <acls> modify an acl\n\
785 \t-A <acls> add an acl\n\
786 \t-S <acls> set acls\n\
787 \t-C username change ownership of a file\n\
788 \t-G username change group ownership of a file\n\
789 \t-n don't resolve sids or masks to names\n\
792 The username can be of the form username%%password or\n\
793 workgroup\\username%%password.\n\n\
794 An acl is of the form ACL:<SID>:type/flags/mask\n\
795 You can string acls together with spaces, commas or newlines\n\
799 /****************************************************************************
801 ****************************************************************************/
802 int main(int argc,char *argv[])
811 static pstring servicesf = CONFIGFILE;
812 struct cli_state *cli=NULL;
813 enum acl_mode mode = SMB_ACL_SET;
814 char *the_acl = NULL;
815 enum chown_mode change_mode = REQUEST_NONE;
824 if (argc < 3 || argv[1][0] == '-') {
827 exit(EXIT_PARSE_ERROR);
830 setup_logging(argv[0],True);
833 pstrcpy(filename, argv[2]);
834 all_string_sub(share,"/","\\",0);
840 charset_initialise();
842 lp_load(servicesf,True,False,False);
843 codepage_initialise(lp_client_code_page());
846 if (getenv("USER")) {
847 pstrcpy(username,getenv("USER"));
849 if ((p=strchr(username,'%'))) {
851 pstrcpy(password,p+1);
853 memset(strchr(getenv("USER"), '%') + 1, 'X',
858 while ((opt = getopt(argc, argv, "U:nhS:D:A:M:C:G:t")) != EOF) {
861 pstrcpy(username,optarg);
862 p = strchr(username,'%');
865 pstrcpy(password, p+1);
877 mode = SMB_ACL_DELETE;
882 mode = SMB_ACL_MODIFY;
891 pstrcpy(owner_username,optarg);
892 change_mode = REQUEST_CHOWN;
896 pstrcpy(owner_username,optarg);
897 change_mode = REQUEST_CHGRP;
911 exit(EXIT_PARSE_ERROR);
914 printf("Unknown option %c (%d)\n", (char)opt, opt);
916 exit(EXIT_PARSE_ERROR);
926 exit(EXIT_PARSE_ERROR);
929 /* Make connection to server */
932 cli = connect_one(share);
939 all_string_sub(filename, "/", "\\", 0);
940 if (filename[0] != '\\') {
943 safe_strcpy(&s[1], filename, sizeof(pstring)-1);
944 pstrcpy(filename, s);
947 /* Perform requested action */
949 if (change_mode != REQUEST_NONE) {
950 result = owner_set(cli, change_mode, filename, owner_username);
951 } else if (the_acl) {
952 result = cacl_set(cli, filename, the_acl, mode);
954 result = cacl_dump(cli, filename);