2 Unix SMB/Netbios implementation.
4 Samba utility functions
5 Copyright (C) Andrew Tridgell 1992-1998
6 Copyright (C) Luke Kenneth Caseson Leighton 1998-1999
7 Copyright (C) Jeremy Allison 1999
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 DOM_SID global_sam_sid;
27 extern pstring global_myname;
28 extern fstring global_myworkgroup;
34 DOM_SID global_sid_Builtin; /* Local well-known domain */
35 DOM_SID global_sid_World_Domain; /* Everyone domain */
36 DOM_SID global_sid_World; /* Everyone */
37 DOM_SID global_sid_Creator_Owner_Domain; /* Creator Owner domain */
38 DOM_SID global_sid_Creator_Owner; /* Creator Owner */
39 DOM_SID global_sid_NT_Authority; /* NT Authority */
40 DOM_SID global_sid_NULL; /* NULL sid */
41 DOM_SID global_sid_Builtin_Guests; /* Builtin guest users */
42 DOM_SID global_sid_Authenticated_Users; /* All authenticated rids */
43 DOM_SID global_sid_Network; /* Network rids */
44 DOM_SID global_sid_Anonymous; /* Anonymous login */
45 DOM_SID global_sid_nonexistent; /* S-0-0. Used in Lsa level 3. */
47 const DOM_SID *global_sid_everyone = &global_sid_World;
49 typedef struct _known_sid_users {
51 enum SID_NAME_USE sid_name_use;
52 char *known_user_name;
55 /* static known_sid_users no_users[] = {{0, 0, NULL}}; */
57 static known_sid_users everyone_users[] = {
58 { 0, SID_NAME_WKN_GRP, "Everyone" },
59 {0, (enum SID_NAME_USE)0, NULL}};
61 static known_sid_users creator_owner_users[] = {
62 { 0, SID_NAME_ALIAS, "Creator Owner" },
63 {0, (enum SID_NAME_USE)0, NULL}};
65 static known_sid_users nt_authority_users[] = {
66 { 1, SID_NAME_ALIAS, "Dialup" },
67 { 2, SID_NAME_ALIAS, "Network"},
68 { 3, SID_NAME_ALIAS, "Batch"},
69 { 4, SID_NAME_ALIAS, "Interactive"},
70 { 6, SID_NAME_ALIAS, "Service"},
71 { 7, SID_NAME_ALIAS, "AnonymousLogon"},
72 { 8, SID_NAME_ALIAS, "Proxy"},
73 { 9, SID_NAME_ALIAS, "ServerLogon"},
74 { 11, SID_NAME_ALIAS, "Authenticated Users"},
75 { 18, SID_NAME_ALIAS, "SYSTEM"},
76 { 0, (enum SID_NAME_USE)0, NULL}};
78 static known_sid_users builtin_groups[] = {
79 { BUILTIN_ALIAS_RID_ADMINS, SID_NAME_ALIAS, "Administrators" },
80 { BUILTIN_ALIAS_RID_USERS, SID_NAME_ALIAS, "Users" },
81 { BUILTIN_ALIAS_RID_GUESTS, SID_NAME_ALIAS, "Guests" },
82 { BUILTIN_ALIAS_RID_ACCOUNT_OPS, SID_NAME_ALIAS, "Account Operators" },
83 { BUILTIN_ALIAS_RID_SYSTEM_OPS, SID_NAME_ALIAS, "Server Operators" },
84 { BUILTIN_ALIAS_RID_PRINT_OPS, SID_NAME_ALIAS, "Print Operators" },
85 { BUILTIN_ALIAS_RID_BACKUP_OPS, SID_NAME_ALIAS, "Backup Operators" },
86 { 0, (enum SID_NAME_USE)0, NULL}};
88 #define MAX_SID_NAMES 7
90 static struct sid_name_map_info
94 known_sid_users *known_users;
95 } sid_name_map[MAX_SID_NAMES];
97 static BOOL sid_name_map_initialized = False;
100 * An NT compatible anonymous token.
103 static DOM_SID anon_sid_array[3];
105 NT_USER_TOKEN anonymous_token = {
110 /**************************************************************************
112 *************************************************************************/
113 static void init_sid_name_map (void)
117 if (sid_name_map_initialized) return;
120 if ((lp_security() == SEC_USER) && lp_domain_logons()) {
121 sid_name_map[i].sid = &global_sam_sid;
122 sid_name_map[i].name = global_myworkgroup;
123 sid_name_map[i].known_users = NULL;
125 sid_name_map[i].sid = &global_sam_sid;
126 sid_name_map[i].name = global_myname;
127 sid_name_map[i].known_users = NULL;
131 sid_name_map[i].sid = &global_sam_sid;
132 sid_name_map[i].name = global_myname;
133 sid_name_map[i].known_users = NULL;
137 sid_name_map[i].sid = &global_sid_Builtin;
138 sid_name_map[i].name = "BUILTIN";
139 sid_name_map[i].known_users = &builtin_groups[0];
142 sid_name_map[i].sid = &global_sid_World_Domain;
143 sid_name_map[i].name = "";
144 sid_name_map[i].known_users = &everyone_users[0];
147 sid_name_map[i].sid = &global_sid_Creator_Owner_Domain;
148 sid_name_map[i].name = "";
149 sid_name_map[i].known_users = &creator_owner_users[0];
152 sid_name_map[i].sid = &global_sid_NT_Authority;
153 sid_name_map[i].name = "NT Authority";
154 sid_name_map[i].known_users = &nt_authority_users[0];
159 sid_name_map[i].sid = NULL;
160 sid_name_map[i].name = NULL;
161 sid_name_map[i].known_users = NULL;
163 sid_name_map_initialized = True;
169 /****************************************************************************
170 Creates some useful well known sids
171 ****************************************************************************/
173 void generate_wellknown_sids(void)
175 string_to_sid(&global_sid_Builtin, "S-1-5-32");
176 string_to_sid(&global_sid_Builtin_Guests, "S-1-5-32-546");
177 string_to_sid(&global_sid_World_Domain, "S-1-1");
178 string_to_sid(&global_sid_World, "S-1-1-0");
179 string_to_sid(&global_sid_Creator_Owner_Domain, "S-1-3");
180 string_to_sid(&global_sid_Creator_Owner, "S-1-3-0");
181 string_to_sid(&global_sid_NT_Authority, "S-1-5");
182 string_to_sid(&global_sid_NULL, "S-1-0-0");
183 string_to_sid(&global_sid_Authenticated_Users, "S-1-5-11");
184 string_to_sid(&global_sid_Network, "S-1-5-2");
185 string_to_sid(&global_sid_Anonymous, "S-1-5-7");
186 string_to_sid(&global_sid_nonexistent, "S-0-0"); /* Used in Lsa level 3. */
188 /* Create the anon token. */
189 sid_copy( &anonymous_token.user_sids[0], &global_sid_World);
190 sid_copy( &anonymous_token.user_sids[1], &global_sid_Network);
191 sid_copy( &anonymous_token.user_sids[2], &global_sid_Anonymous);
194 /**************************************************************************
195 Turns a domain SID into a name, returned in the nt_domain argument.
196 ***************************************************************************/
198 BOOL map_domain_sid_to_name(DOM_SID *sid, char *nt_domain)
203 sid_to_string(sid_str, sid);
205 if (!sid_name_map_initialized)
208 DEBUG(5,("map_domain_sid_to_name: %s\n", sid_str));
210 if (nt_domain == NULL)
213 while (sid_name_map[i].sid != NULL) {
214 sid_to_string(sid_str, sid_name_map[i].sid);
215 DEBUG(5,("map_domain_sid_to_name: compare: %s\n", sid_str));
216 if (sid_equal(sid_name_map[i].sid, sid)) {
217 fstrcpy(nt_domain, sid_name_map[i].name);
218 DEBUG(5,("map_domain_sid_to_name: found '%s'\n", nt_domain));
224 DEBUG(5,("map_domain_sid_to_name: mapping for %s not found\n", sid_str));
229 /**************************************************************************
230 Looks up a known username from one of the known domains.
231 ***************************************************************************/
233 BOOL lookup_known_rid(DOM_SID *sid, uint32 rid, char *name, enum SID_NAME_USE *psid_name_use)
236 struct sid_name_map_info *psnm;
238 if (!sid_name_map_initialized)
241 for(i = 0; sid_name_map[i].sid != NULL; i++) {
242 psnm = &sid_name_map[i];
243 if(sid_equal(psnm->sid, sid)) {
245 for(j = 0; psnm->known_users && psnm->known_users[j].known_user_name != NULL; j++) {
246 if(rid == psnm->known_users[j].rid) {
247 DEBUG(5,("lookup_builtin_rid: rid = %u, domain = '%s', user = '%s'\n",
248 (unsigned int)rid, psnm->name, psnm->known_users[j].known_user_name ));
249 fstrcpy( name, psnm->known_users[j].known_user_name);
250 *psid_name_use = psnm->known_users[j].sid_name_use;
260 /**************************************************************************
261 Turns a domain name into a SID.
262 *** side-effect: if the domain name is NULL, it is set to our domain ***
263 ***************************************************************************/
265 BOOL map_domain_name_to_sid(DOM_SID *sid, char *nt_domain)
269 if (nt_domain == NULL) {
270 DEBUG(5,("map_domain_name_to_sid: mapping NULL domain to our SID.\n"));
271 sid_copy(sid, &global_sam_sid);
275 if (nt_domain[0] == 0) {
276 fstrcpy(nt_domain, global_myname);
277 DEBUG(5,("map_domain_name_to_sid: overriding blank name to %s\n", nt_domain));
278 sid_copy(sid, &global_sam_sid);
282 DEBUG(5,("map_domain_name_to_sid: %s\n", nt_domain));
284 if (!sid_name_map_initialized)
287 while (sid_name_map[i].name != NULL) {
288 DEBUG(5,("map_domain_name_to_sid: compare: %s\n", sid_name_map[i].name));
289 if (strequal(sid_name_map[i].name, nt_domain)) {
291 sid_copy(sid, sid_name_map[i].sid);
292 sid_to_string(sid_str, sid_name_map[i].sid);
293 DEBUG(5,("map_domain_name_to_sid: found %s\n", sid_str));
299 DEBUG(0,("map_domain_name_to_sid: mapping to %s not found.\n", nt_domain));
303 /**************************************************************************
304 Splits a name of format \DOMAIN\name or name into its two components.
305 Sets the DOMAIN name to global_myname if it has not been specified.
306 ***************************************************************************/
308 void split_domain_name(const char *fullname, char *domain, char *name)
313 sep = lp_winbind_separator();
315 *domain = *name = '\0';
317 if (fullname[0] == sep[0] || fullname[0] == '\\')
320 pstrcpy(full_name, fullname);
321 p = strchr_m(full_name+1, '\\');
322 if (!p) p = strchr_m(full_name+1, sep[0]);
326 fstrcpy(domain, full_name);
329 fstrcpy(domain, global_myname);
330 fstrcpy(name, full_name);
333 DEBUG(10,("split_domain_name:name '%s' split into domain :'%s' and user :'%s'\n",
334 fullname, domain, name));
337 /*****************************************************************
338 Convert a SID to an ascii string.
339 *****************************************************************/
341 char *sid_to_string(fstring sidstr_out, DOM_SID *sid)
345 /* BIG NOTE: this function only does SIDS where the identauth is not >= 2^32 */
346 uint32 ia = (sid->id_auth[5]) +
347 (sid->id_auth[4] << 8 ) +
348 (sid->id_auth[3] << 16) +
349 (sid->id_auth[2] << 24);
351 slprintf(sidstr_out, sizeof(fstring) - 1, "S-%u-%lu", (unsigned int)sid->sid_rev_num, (unsigned long)ia);
353 for (i = 0; i < sid->num_auths; i++) {
354 slprintf(subauth, sizeof(subauth)-1, "-%lu", (unsigned long)sid->sub_auths[i]);
355 fstrcat(sidstr_out, subauth);
362 useful function for debug lines
364 const char *sid_string_static(DOM_SID *sid)
366 static fstring sid_str;
367 sid_to_string(sid_str, sid);
371 /*****************************************************************
372 Convert a string to a SID. Returns True on success, False on fail.
373 *****************************************************************/
375 BOOL string_to_sid(DOM_SID *sidout, const char *sidstr)
379 /* BIG NOTE: this function only does SIDS where the identauth is not >= 2^32 */
382 if (StrnCaseCmp( sidstr, "S-", 2)) {
383 DEBUG(0,("string_to_sid: Sid %s does not start with 'S-'.\n", sidstr));
387 memset((char *)sidout, '\0', sizeof(DOM_SID));
389 q = p = strdup(sidstr + 2);
391 DEBUG(0, ("string_to_sid: out of memory!\n"));
395 if (!next_token(&p, tok, "-", sizeof(tok))) {
396 DEBUG(0,("string_to_sid: Sid %s is not in a valid format.\n", sidstr));
401 /* Get the revision number. */
402 sidout->sid_rev_num = (uint8)strtoul(tok, NULL, 10);
404 if (!next_token(&p, tok, "-", sizeof(tok))) {
405 DEBUG(0,("string_to_sid: Sid %s is not in a valid format.\n", sidstr));
410 /* identauth in decimal should be < 2^32 */
411 ia = (uint32)strtoul(tok, NULL, 10);
413 /* NOTE - the ia value is in big-endian format. */
414 sidout->id_auth[0] = 0;
415 sidout->id_auth[1] = 0;
416 sidout->id_auth[2] = (ia & 0xff000000) >> 24;
417 sidout->id_auth[3] = (ia & 0x00ff0000) >> 16;
418 sidout->id_auth[4] = (ia & 0x0000ff00) >> 8;
419 sidout->id_auth[5] = (ia & 0x000000ff);
421 sidout->num_auths = 0;
423 while(next_token(&p, tok, "-", sizeof(tok)) &&
424 sidout->num_auths < MAXSUBAUTHS) {
426 * NOTE - the subauths are in native machine-endian format. They
427 * are converted to little-endian when linearized onto the wire.
429 sid_append_rid(sidout, (uint32)strtoul(tok, NULL, 10));
436 /*****************************************************************
437 Add a rid to the end of a sid
438 *****************************************************************/
440 BOOL sid_append_rid(DOM_SID *sid, uint32 rid)
442 if (sid->num_auths < MAXSUBAUTHS) {
443 sid->sub_auths[sid->num_auths++] = rid;
449 /*****************************************************************
450 Removes the last rid from the end of a sid
451 *****************************************************************/
453 BOOL sid_split_rid(DOM_SID *sid, uint32 *rid)
455 if (sid->num_auths > 0) {
457 *rid = sid->sub_auths[sid->num_auths];
463 /*****************************************************************
464 Return the last rid from the end of a sid
465 *****************************************************************/
467 BOOL sid_peek_rid(DOM_SID *sid, uint32 *rid)
469 if (sid->num_auths > 0) {
470 *rid = sid->sub_auths[sid->num_auths - 1];
476 /*****************************************************************
478 *****************************************************************/
480 void sid_copy(DOM_SID *dst, const DOM_SID *src)
484 memset((char *)dst, '\0', sizeof(DOM_SID));
486 dst->sid_rev_num = src->sid_rev_num;
487 dst->num_auths = src->num_auths;
489 memcpy(&dst->id_auth[0], &src->id_auth[0], sizeof(src->id_auth));
491 for (i = 0; i < src->num_auths; i++)
492 dst->sub_auths[i] = src->sub_auths[i];
495 /*****************************************************************
496 Duplicates a sid - mallocs the target.
497 *****************************************************************/
499 DOM_SID *sid_dup(DOM_SID *src)
506 if((dst = malloc(sizeof(DOM_SID))) != NULL) {
507 memset(dst, '\0', sizeof(DOM_SID));
514 /*****************************************************************
515 Write a sid out into on-the-wire format.
516 *****************************************************************/
517 BOOL sid_linearize(char *outbuf, size_t len, DOM_SID *sid)
521 if (len < sid_size(sid))
524 SCVAL(outbuf,0,sid->sid_rev_num);
525 SCVAL(outbuf,1,sid->num_auths);
526 memcpy(&outbuf[2], sid->id_auth, 6);
527 for(i = 0; i < sid->num_auths; i++)
528 SIVAL(outbuf, 8 + (i*4), sid->sub_auths[i]);
533 /*****************************************************************
534 parse a on-the-wire SID to a DOM_SID
535 *****************************************************************/
536 BOOL sid_parse(char *inbuf, size_t len, DOM_SID *sid)
539 if (len < 8) return False;
540 sid->sid_rev_num = CVAL(inbuf, 0);
541 sid->num_auths = CVAL(inbuf, 1);
542 memcpy(sid->id_auth, inbuf+2, 6);
543 if (len < 8 + sid->num_auths*4) return False;
544 for (i=0;i<sid->num_auths;i++) {
545 sid->sub_auths[i] = IVAL(inbuf, 8+i*4);
551 /*****************************************************************
552 Compare the auth portion of two sids.
553 *****************************************************************/
554 int sid_compare_auth(const DOM_SID *sid1, const DOM_SID *sid2)
558 if (sid1 == sid2) return 0;
559 if (!sid1) return -1;
562 if (sid1->sid_rev_num != sid2->sid_rev_num)
563 return sid1->sid_rev_num - sid2->sid_rev_num;
565 for (i = 0; i < 6; i++)
566 if (sid1->id_auth[i] != sid2->id_auth[i])
567 return sid1->id_auth[i] - sid2->id_auth[i];
572 /*****************************************************************
574 *****************************************************************/
575 int sid_compare(const DOM_SID *sid1, const DOM_SID *sid2)
579 if (sid1 == sid2) return 0;
580 if (!sid1) return -1;
583 /* compare most likely different rids, first: i.e start at end */
584 if (sid1->num_auths != sid2->num_auths)
585 return sid1->num_auths - sid2->num_auths;
587 for (i = sid1->num_auths-1; i >= 0; --i)
588 if (sid1->sub_auths[i] != sid2->sub_auths[i])
589 return sid1->sub_auths[i] - sid2->sub_auths[i];
591 return sid_compare_auth(sid1, sid2);
594 /*****************************************************************
595 see if 2 SIDs are in the same domain
596 this just compares the leading sub-auths
597 *****************************************************************/
598 int sid_compare_domain(const DOM_SID *sid1, const DOM_SID *sid2)
602 n = MIN(sid1->num_auths, sid2->num_auths);
604 for (i = n-1; i >= 0; --i)
605 if (sid1->sub_auths[i] != sid2->sub_auths[i])
606 return sid1->sub_auths[i] - sid2->sub_auths[i];
608 return sid_compare_auth(sid1, sid2);
611 /*****************************************************************
613 *****************************************************************/
614 BOOL sid_equal(const DOM_SID *sid1, const DOM_SID *sid2)
616 return sid_compare(sid1, sid2) == 0;
620 /*****************************************************************
621 Check if the SID is our domain SID (S-1-5-21-x-y-z).
622 *****************************************************************/
623 BOOL sid_check_is_domain(const DOM_SID *sid)
625 return sid_equal(sid, &global_sam_sid);
629 /*****************************************************************
630 Check if the SID is the builtin SID (S-1-5-32).
631 *****************************************************************/
632 BOOL sid_check_is_builtin(const DOM_SID *sid)
634 return sid_equal(sid, &global_sid_Builtin);
638 /*****************************************************************
639 Check if the SID is our domain SID (S-1-5-21-x-y-z).
640 *****************************************************************/
641 BOOL sid_check_is_in_our_domain(const DOM_SID *sid)
646 sid_copy(&dom_sid, sid);
647 sid_split_rid(&dom_sid, &rid);
649 return sid_equal(&dom_sid, &global_sam_sid);
652 /*****************************************************************
653 Check if the SID is our domain SID (S-1-5-21-x-y-z).
654 *****************************************************************/
655 BOOL sid_check_is_in_builtin(const DOM_SID *sid)
660 sid_copy(&dom_sid, sid);
661 sid_split_rid(&dom_sid, &rid);
663 return sid_equal(&dom_sid, &global_sid_Builtin);
667 /*****************************************************************
668 Calculates size of a sid.
669 *****************************************************************/
671 size_t sid_size(DOM_SID *sid)
676 return sid->num_auths * sizeof(uint32) + 8;
679 /*****************************************************************
680 Returns true if SID is internal (and non-mappable).
681 *****************************************************************/
683 BOOL non_mappable_sid(DOM_SID *sid)
689 sid_split_rid(&dom, &rid);
691 if (sid_equal(&dom, &global_sid_Builtin))
694 if (sid_equal(&dom, &global_sid_Creator_Owner_Domain))
697 if (sid_equal(&dom, &global_sid_NT_Authority))
704 return the binary string representation of a DOM_SID
707 char *sid_binstring(DOM_SID *sid)
710 int len = sid_size(sid);
712 if (!buf) return NULL;
713 sid_linearize(buf, len, sid);
714 s = binary_string(buf, len);