2 Unix SMB/CIFS implementation.
3 Samba utility functions
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Luke Kenneth Caseson Leighton 1998-1999
6 Copyright (C) Jeremy Allison 1999
7 Copyright (C) Stefan (metze) Metzmacher 2002
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 extern pstring global_myname;
27 extern fstring global_myworkgroup;
33 DOM_SID global_sid_World_Domain; /* Everyone domain */
34 DOM_SID global_sid_World; /* Everyone */
35 DOM_SID global_sid_Creator_Owner_Domain; /* Creator Owner domain */
36 DOM_SID global_sid_NT_Authority; /* NT Authority */
37 DOM_SID global_sid_System; /* System */
38 DOM_SID global_sid_NULL; /* NULL sid */
39 DOM_SID global_sid_Authenticated_Users; /* All authenticated rids */
40 DOM_SID global_sid_Network; /* Network rids */
42 static DOM_SID global_sid_Creator_Owner; /* Creator Owner */
43 static DOM_SID global_sid_Creator_Group; /* Creator Group */
44 static DOM_SID global_sid_Anonymous; /* Anonymous login */
46 DOM_SID global_sid_Builtin; /* Local well-known domain */
47 DOM_SID global_sid_Builtin_Administrators;
48 DOM_SID global_sid_Builtin_Users;
49 DOM_SID global_sid_Builtin_Guests; /* Builtin guest users */
52 * An NT compatible anonymous token.
55 static DOM_SID anon_sid_array[3];
57 NT_USER_TOKEN anonymous_token = {
62 static DOM_SID system_sid_array[4];
63 NT_USER_TOKEN system_token = {
68 /****************************************************************************
69 Lookup string names for SID types.
70 ****************************************************************************/
73 enum SID_NAME_USE sid_type;
76 {SID_NAME_USER, "user"},
77 {SID_NAME_DOM_GRP, "domain group"},
78 {SID_NAME_DOMAIN, "domain"},
79 {SID_NAME_ALIAS, "local group"},
80 {SID_NAME_WKN_GRP, "well-known group"},
81 {SID_NAME_DELETED, "deleted account"},
82 {SID_NAME_INVALID, "invalid account"},
83 {SID_NAME_UNKNOWN, "UNKNOWN"},
85 {SID_NAME_USE_NONE, NULL}
88 const char *sid_type_lookup(uint32 sid_type)
92 /* Look through list */
93 while(sid_name_type[i].sid_type != 0) {
94 if (sid_name_type[i].sid_type == sid_type)
95 return sid_name_type[i].string;
100 return "SID *TYPE* is INVALID";
105 /****************************************************************************
106 Creates some useful well known sids
107 ****************************************************************************/
109 void generate_wellknown_sids(void)
111 static BOOL initialised = False;
115 string_to_sid(&global_sid_Builtin, "S-1-5-32");
116 string_to_sid(&global_sid_Builtin_Administrators, "S-1-5-32-544");
117 string_to_sid(&global_sid_Builtin_Users, "S-1-5-32-545");
118 string_to_sid(&global_sid_Builtin_Guests, "S-1-5-32-546");
119 string_to_sid(&global_sid_World_Domain, "S-1-1");
120 string_to_sid(&global_sid_World, "S-1-1-0");
121 string_to_sid(&global_sid_Creator_Owner_Domain, "S-1-3");
122 string_to_sid(&global_sid_Creator_Owner, "S-1-3-0");
123 string_to_sid(&global_sid_Creator_Group, "S-1-3-1");
124 string_to_sid(&global_sid_NT_Authority, "S-1-5");
125 string_to_sid(&global_sid_System, "S-1-5-18");
126 string_to_sid(&global_sid_NULL, "S-1-0-0");
127 string_to_sid(&global_sid_Authenticated_Users, "S-1-5-11");
128 string_to_sid(&global_sid_Network, "S-1-5-2");
129 string_to_sid(&global_sid_Anonymous, "S-1-5-7");
131 /* Create the anon token. */
132 sid_copy( &anonymous_token.user_sids[0], &global_sid_World);
133 sid_copy( &anonymous_token.user_sids[1], &global_sid_Network);
134 sid_copy( &anonymous_token.user_sids[2], &global_sid_Anonymous);
136 /* Create the system token. */
137 sid_copy( &system_token.user_sids[0], &global_sid_System);
142 NT_USER_TOKEN *get_system_token(void)
144 generate_wellknown_sids(); /* The token is initialised here */
145 return &system_token;
148 /**************************************************************************
149 Splits a name of format \DOMAIN\name or name into its two components.
150 Sets the DOMAIN name to global_myname if it has not been specified.
151 ***************************************************************************/
153 void split_domain_name(const char *fullname, char *domain, char *name)
158 sep = lp_winbind_separator();
160 *domain = *name = '\0';
162 if (fullname[0] == sep[0] || fullname[0] == '\\')
165 pstrcpy(full_name, fullname);
166 p = strchr_m(full_name+1, '\\');
167 if (!p) p = strchr_m(full_name+1, sep[0]);
171 fstrcpy(domain, full_name);
174 fstrcpy(domain, global_myname);
175 fstrcpy(name, full_name);
178 DEBUG(10,("split_domain_name:name '%s' split into domain :'%s' and user :'%s'\n",
179 fullname, domain, name));
182 /*****************************************************************
183 Convert a SID to an ascii string.
184 *****************************************************************/
186 char *sid_to_string(fstring sidstr_out, const DOM_SID *sid)
193 fstrcpy(sidstr_out, "(NULL SID)");
197 /* BIG NOTE: this function only does SIDS where the identauth is not >= 2^32 */
198 ia = (sid->id_auth[5]) +
199 (sid->id_auth[4] << 8 ) +
200 (sid->id_auth[3] << 16) +
201 (sid->id_auth[2] << 24);
203 slprintf(sidstr_out, sizeof(fstring) - 1, "S-%u-%lu", (unsigned int)sid->sid_rev_num, (unsigned long)ia);
205 for (i = 0; i < sid->num_auths; i++) {
206 slprintf(subauth, sizeof(subauth)-1, "-%lu", (unsigned long)sid->sub_auths[i]);
207 fstrcat(sidstr_out, subauth);
214 useful function for debug lines
216 const char *sid_string_static(const DOM_SID *sid)
218 static fstring sid_str;
219 sid_to_string(sid_str, sid);
223 /*****************************************************************
224 Convert a string to a SID. Returns True on success, False on fail.
225 *****************************************************************/
227 BOOL string_to_sid(DOM_SID *sidout, const char *sidstr)
231 /* BIG NOTE: this function only does SIDS where the identauth is not >= 2^32 */
234 if (StrnCaseCmp( sidstr, "S-", 2)) {
235 DEBUG(0,("string_to_sid: Sid %s does not start with 'S-'.\n", sidstr));
239 memset((char *)sidout, '\0', sizeof(DOM_SID));
241 q = p = strdup(sidstr + 2);
243 DEBUG(0, ("string_to_sid: out of memory!\n"));
247 if (!next_token(&p, tok, "-", sizeof(tok))) {
248 DEBUG(0,("string_to_sid: Sid %s is not in a valid format.\n", sidstr));
253 /* Get the revision number. */
254 sidout->sid_rev_num = (uint8)strtoul(tok, NULL, 10);
256 if (!next_token(&p, tok, "-", sizeof(tok))) {
257 DEBUG(0,("string_to_sid: Sid %s is not in a valid format.\n", sidstr));
262 /* identauth in decimal should be < 2^32 */
263 ia = (uint32)strtoul(tok, NULL, 10);
265 /* NOTE - the ia value is in big-endian format. */
266 sidout->id_auth[0] = 0;
267 sidout->id_auth[1] = 0;
268 sidout->id_auth[2] = (ia & 0xff000000) >> 24;
269 sidout->id_auth[3] = (ia & 0x00ff0000) >> 16;
270 sidout->id_auth[4] = (ia & 0x0000ff00) >> 8;
271 sidout->id_auth[5] = (ia & 0x000000ff);
273 sidout->num_auths = 0;
275 while(next_token(&p, tok, "-", sizeof(tok)) &&
276 sidout->num_auths < MAXSUBAUTHS) {
278 * NOTE - the subauths are in native machine-endian format. They
279 * are converted to little-endian when linearized onto the wire.
281 sid_append_rid(sidout, (uint32)strtoul(tok, NULL, 10));
288 /*****************************************************************
289 Add a rid to the end of a sid
290 *****************************************************************/
292 BOOL sid_append_rid(DOM_SID *sid, uint32 rid)
294 if (sid->num_auths < MAXSUBAUTHS) {
295 sid->sub_auths[sid->num_auths++] = rid;
301 /*****************************************************************
302 Removes the last rid from the end of a sid
303 *****************************************************************/
305 BOOL sid_split_rid(DOM_SID *sid, uint32 *rid)
307 if (sid->num_auths > 0) {
309 *rid = sid->sub_auths[sid->num_auths];
315 /*****************************************************************
316 Return the last rid from the end of a sid
317 *****************************************************************/
319 BOOL sid_peek_rid(const DOM_SID *sid, uint32 *rid)
324 if (sid->num_auths > 0) {
325 *rid = sid->sub_auths[sid->num_auths - 1];
331 /*****************************************************************
332 Return the last rid from the end of a sid
333 and check the sid against the exp_dom_sid
334 *****************************************************************/
336 BOOL sid_peek_check_rid(const DOM_SID *exp_dom_sid, const DOM_SID *sid, uint32 *rid)
338 if (!exp_dom_sid || !sid || !rid)
342 if (sid_compare_domain(exp_dom_sid, sid)!=0){
347 return sid_peek_rid(sid, rid);
350 /*****************************************************************
352 *****************************************************************/
354 void sid_copy(DOM_SID *dst, const DOM_SID *src)
360 dst->sid_rev_num = src->sid_rev_num;
361 dst->num_auths = src->num_auths;
363 memcpy(&dst->id_auth[0], &src->id_auth[0], sizeof(src->id_auth));
365 for (i = 0; i < src->num_auths; i++)
366 dst->sub_auths[i] = src->sub_auths[i];
370 /*****************************************************************
371 Write a sid out into on-the-wire format.
372 *****************************************************************/
373 BOOL sid_linearize(char *outbuf, size_t len, const DOM_SID *sid)
377 if (len < sid_size(sid))
380 SCVAL(outbuf,0,sid->sid_rev_num);
381 SCVAL(outbuf,1,sid->num_auths);
382 memcpy(&outbuf[2], sid->id_auth, 6);
383 for(i = 0; i < sid->num_auths; i++)
384 SIVAL(outbuf, 8 + (i*4), sid->sub_auths[i]);
389 /*****************************************************************
390 parse a on-the-wire SID to a DOM_SID
391 *****************************************************************/
392 BOOL sid_parse(const char *inbuf, size_t len, DOM_SID *sid)
395 if (len < 8) return False;
399 sid->sid_rev_num = CVAL(inbuf, 0);
400 sid->num_auths = CVAL(inbuf, 1);
401 memcpy(sid->id_auth, inbuf+2, 6);
402 if (len < 8 + sid->num_auths*4) return False;
403 for (i=0;i<sid->num_auths;i++) {
404 sid->sub_auths[i] = IVAL(inbuf, 8+i*4);
410 /*****************************************************************
411 Compare the auth portion of two sids.
412 *****************************************************************/
413 static int sid_compare_auth(const DOM_SID *sid1, const DOM_SID *sid2)
417 if (sid1 == sid2) return 0;
418 if (!sid1) return -1;
421 if (sid1->sid_rev_num != sid2->sid_rev_num)
422 return sid1->sid_rev_num - sid2->sid_rev_num;
424 for (i = 0; i < 6; i++)
425 if (sid1->id_auth[i] != sid2->id_auth[i])
426 return sid1->id_auth[i] - sid2->id_auth[i];
431 /*****************************************************************
433 *****************************************************************/
434 int sid_compare(const DOM_SID *sid1, const DOM_SID *sid2)
438 if (sid1 == sid2) return 0;
439 if (!sid1) return -1;
442 /* compare most likely different rids, first: i.e start at end */
443 if (sid1->num_auths != sid2->num_auths)
444 return sid1->num_auths - sid2->num_auths;
446 for (i = sid1->num_auths-1; i >= 0; --i)
447 if (sid1->sub_auths[i] != sid2->sub_auths[i])
448 return sid1->sub_auths[i] - sid2->sub_auths[i];
450 return sid_compare_auth(sid1, sid2);
453 /*****************************************************************
454 see if 2 SIDs are in the same domain
455 this just compares the leading sub-auths
456 *****************************************************************/
457 int sid_compare_domain(const DOM_SID *sid1, const DOM_SID *sid2)
461 n = MIN(sid1->num_auths, sid2->num_auths);
463 for (i = n-1; i >= 0; --i)
464 if (sid1->sub_auths[i] != sid2->sub_auths[i])
465 return sid1->sub_auths[i] - sid2->sub_auths[i];
467 return sid_compare_auth(sid1, sid2);
470 /*****************************************************************
472 *****************************************************************/
473 BOOL sid_equal(const DOM_SID *sid1, const DOM_SID *sid2)
475 return sid_compare(sid1, sid2) == 0;
480 /*****************************************************************
481 Check if the SID is the builtin SID (S-1-5-32).
482 *****************************************************************/
483 BOOL sid_check_is_builtin(const DOM_SID *sid)
485 return sid_equal(sid, &global_sid_Builtin);
489 /*****************************************************************
490 Check if the SID is our domain SID (S-1-5-21-x-y-z).
491 *****************************************************************/
492 BOOL sid_check_is_in_builtin(const DOM_SID *sid)
497 sid_copy(&dom_sid, sid);
498 sid_split_rid(&dom_sid, &rid);
500 return sid_equal(&dom_sid, &global_sid_Builtin);
504 /*****************************************************************
505 Calculates size of a sid.
506 *****************************************************************/
508 size_t sid_size(const DOM_SID *sid)
513 return sid->num_auths * sizeof(uint32) + 8;
516 /*****************************************************************
517 Returns true if SID is internal (and non-mappable).
518 *****************************************************************/
520 BOOL non_mappable_sid(DOM_SID *sid)
526 sid_split_rid(&dom, &rid);
528 if (sid_equal(&dom, &global_sid_Builtin))
531 if (sid_equal(&dom, &global_sid_Creator_Owner_Domain))
534 if (sid_equal(&dom, &global_sid_NT_Authority))
541 return the binary string representation of a DOM_SID
544 char *sid_binstring(const DOM_SID *sid)
547 int len = sid_size(sid);
549 if (!buf) return NULL;
550 sid_linearize(buf, len, sid);
551 s = binary_string(buf, len);
558 print a GUID structure for debugging
560 void print_guid(GUID *guid)
564 d_printf("%08x-%04x-%04x",
565 IVAL(guid->info, 0), SVAL(guid->info, 4), SVAL(guid->info, 6));
566 d_printf("-%02x%02x-", guid->info[8], guid->info[9]);
567 for (i=10;i<GUID_SIZE;i++)
568 d_printf("%02x", guid->info[i]);