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_NULL; /* NULL sid */
38 DOM_SID global_sid_Authenticated_Users; /* All authenticated rids */
39 DOM_SID global_sid_Network; /* Network rids */
41 static DOM_SID global_sid_Creator_Owner; /* Creator Owner */
42 static DOM_SID global_sid_Creator_Group; /* Creator Group */
43 static DOM_SID global_sid_Anonymous; /* Anonymous login */
45 DOM_SID global_sid_Builtin; /* Local well-known domain */
46 DOM_SID global_sid_Builtin_Administrators;
47 DOM_SID global_sid_Builtin_Users;
48 DOM_SID global_sid_Builtin_Guests; /* Builtin guest users */
51 * An NT compatible anonymous token.
54 static DOM_SID anon_sid_array[3];
56 NT_USER_TOKEN anonymous_token = {
61 /****************************************************************************
62 Lookup string names for SID types.
63 ****************************************************************************/
66 enum SID_NAME_USE sid_type;
69 {SID_NAME_USER, "user"},
70 {SID_NAME_DOM_GRP, "domain group"},
71 {SID_NAME_DOMAIN, "domain"},
72 {SID_NAME_ALIAS, "local group"},
73 {SID_NAME_WKN_GRP, "well-known group"},
74 {SID_NAME_DELETED, "deleted account"},
75 {SID_NAME_INVALID, "invalid account"},
76 {SID_NAME_UNKNOWN, "UNKNOWN"},
78 {SID_NAME_USE_NONE, NULL}
81 const char *sid_type_lookup(uint32 sid_type)
85 /* Look through list */
86 while(sid_name_type[i].sid_type != 0) {
87 if (sid_name_type[i].sid_type == sid_type)
88 return sid_name_type[i].string;
93 return "SID *TYPE* is INVALID";
98 /****************************************************************************
99 Creates some useful well known sids
100 ****************************************************************************/
102 void generate_wellknown_sids(void)
104 string_to_sid(&global_sid_Builtin, "S-1-5-32");
105 string_to_sid(&global_sid_Builtin_Administrators, "S-1-5-32-544");
106 string_to_sid(&global_sid_Builtin_Users, "S-1-5-32-545");
107 string_to_sid(&global_sid_Builtin_Guests, "S-1-5-32-546");
108 string_to_sid(&global_sid_World_Domain, "S-1-1");
109 string_to_sid(&global_sid_World, "S-1-1-0");
110 string_to_sid(&global_sid_Creator_Owner_Domain, "S-1-3");
111 string_to_sid(&global_sid_Creator_Owner, "S-1-3-0");
112 string_to_sid(&global_sid_Creator_Group, "S-1-3-1");
113 string_to_sid(&global_sid_NT_Authority, "S-1-5");
114 string_to_sid(&global_sid_NULL, "S-1-0-0");
115 string_to_sid(&global_sid_Authenticated_Users, "S-1-5-11");
116 string_to_sid(&global_sid_Network, "S-1-5-2");
117 string_to_sid(&global_sid_Anonymous, "S-1-5-7");
119 /* Create the anon token. */
120 sid_copy( &anonymous_token.user_sids[0], &global_sid_World);
121 sid_copy( &anonymous_token.user_sids[1], &global_sid_Network);
122 sid_copy( &anonymous_token.user_sids[2], &global_sid_Anonymous);
125 /**************************************************************************
126 Splits a name of format \DOMAIN\name or name into its two components.
127 Sets the DOMAIN name to global_myname if it has not been specified.
128 ***************************************************************************/
130 void split_domain_name(const char *fullname, char *domain, char *name)
135 sep = lp_winbind_separator();
137 *domain = *name = '\0';
139 if (fullname[0] == sep[0] || fullname[0] == '\\')
142 pstrcpy(full_name, fullname);
143 p = strchr_m(full_name+1, '\\');
144 if (!p) p = strchr_m(full_name+1, sep[0]);
148 fstrcpy(domain, full_name);
151 fstrcpy(domain, global_myname);
152 fstrcpy(name, full_name);
155 DEBUG(10,("split_domain_name:name '%s' split into domain :'%s' and user :'%s'\n",
156 fullname, domain, name));
159 /*****************************************************************
160 Convert a SID to an ascii string.
161 *****************************************************************/
163 char *sid_to_string(fstring sidstr_out, const DOM_SID *sid)
170 fstrcpy(sidstr_out, "(NULL SID)");
174 /* BIG NOTE: this function only does SIDS where the identauth is not >= 2^32 */
175 ia = (sid->id_auth[5]) +
176 (sid->id_auth[4] << 8 ) +
177 (sid->id_auth[3] << 16) +
178 (sid->id_auth[2] << 24);
180 slprintf(sidstr_out, sizeof(fstring) - 1, "S-%u-%lu", (unsigned int)sid->sid_rev_num, (unsigned long)ia);
182 for (i = 0; i < sid->num_auths; i++) {
183 slprintf(subauth, sizeof(subauth)-1, "-%lu", (unsigned long)sid->sub_auths[i]);
184 fstrcat(sidstr_out, subauth);
191 useful function for debug lines
193 const char *sid_string_static(const DOM_SID *sid)
195 static fstring sid_str;
196 sid_to_string(sid_str, sid);
200 /*****************************************************************
201 Convert a string to a SID. Returns True on success, False on fail.
202 *****************************************************************/
204 BOOL string_to_sid(DOM_SID *sidout, const char *sidstr)
208 /* BIG NOTE: this function only does SIDS where the identauth is not >= 2^32 */
211 if (StrnCaseCmp( sidstr, "S-", 2)) {
212 DEBUG(0,("string_to_sid: Sid %s does not start with 'S-'.\n", sidstr));
216 memset((char *)sidout, '\0', sizeof(DOM_SID));
218 q = p = strdup(sidstr + 2);
220 DEBUG(0, ("string_to_sid: out of memory!\n"));
224 if (!next_token(&p, tok, "-", sizeof(tok))) {
225 DEBUG(0,("string_to_sid: Sid %s is not in a valid format.\n", sidstr));
230 /* Get the revision number. */
231 sidout->sid_rev_num = (uint8)strtoul(tok, NULL, 10);
233 if (!next_token(&p, tok, "-", sizeof(tok))) {
234 DEBUG(0,("string_to_sid: Sid %s is not in a valid format.\n", sidstr));
239 /* identauth in decimal should be < 2^32 */
240 ia = (uint32)strtoul(tok, NULL, 10);
242 /* NOTE - the ia value is in big-endian format. */
243 sidout->id_auth[0] = 0;
244 sidout->id_auth[1] = 0;
245 sidout->id_auth[2] = (ia & 0xff000000) >> 24;
246 sidout->id_auth[3] = (ia & 0x00ff0000) >> 16;
247 sidout->id_auth[4] = (ia & 0x0000ff00) >> 8;
248 sidout->id_auth[5] = (ia & 0x000000ff);
250 sidout->num_auths = 0;
252 while(next_token(&p, tok, "-", sizeof(tok)) &&
253 sidout->num_auths < MAXSUBAUTHS) {
255 * NOTE - the subauths are in native machine-endian format. They
256 * are converted to little-endian when linearized onto the wire.
258 sid_append_rid(sidout, (uint32)strtoul(tok, NULL, 10));
265 /*****************************************************************
266 Add a rid to the end of a sid
267 *****************************************************************/
269 BOOL sid_append_rid(DOM_SID *sid, uint32 rid)
271 if (sid->num_auths < MAXSUBAUTHS) {
272 sid->sub_auths[sid->num_auths++] = rid;
278 /*****************************************************************
279 Removes the last rid from the end of a sid
280 *****************************************************************/
282 BOOL sid_split_rid(DOM_SID *sid, uint32 *rid)
284 if (sid->num_auths > 0) {
286 *rid = sid->sub_auths[sid->num_auths];
292 /*****************************************************************
293 Return the last rid from the end of a sid
294 *****************************************************************/
296 BOOL sid_peek_rid(const DOM_SID *sid, uint32 *rid)
301 if (sid->num_auths > 0) {
302 *rid = sid->sub_auths[sid->num_auths - 1];
308 /*****************************************************************
309 Return the last rid from the end of a sid
310 and check the sid against the exp_dom_sid
311 *****************************************************************/
313 BOOL sid_peek_check_rid(const DOM_SID *exp_dom_sid, const DOM_SID *sid, uint32 *rid)
315 if (!exp_dom_sid || !sid || !rid)
319 if (sid_compare_domain(exp_dom_sid, sid)!=0){
324 return sid_peek_rid(sid, rid);
327 /*****************************************************************
329 *****************************************************************/
331 void sid_copy(DOM_SID *dst, const DOM_SID *src)
337 dst->sid_rev_num = src->sid_rev_num;
338 dst->num_auths = src->num_auths;
340 memcpy(&dst->id_auth[0], &src->id_auth[0], sizeof(src->id_auth));
342 for (i = 0; i < src->num_auths; i++)
343 dst->sub_auths[i] = src->sub_auths[i];
347 /*****************************************************************
348 Write a sid out into on-the-wire format.
349 *****************************************************************/
350 BOOL sid_linearize(char *outbuf, size_t len, DOM_SID *sid)
354 if (len < sid_size(sid))
357 SCVAL(outbuf,0,sid->sid_rev_num);
358 SCVAL(outbuf,1,sid->num_auths);
359 memcpy(&outbuf[2], sid->id_auth, 6);
360 for(i = 0; i < sid->num_auths; i++)
361 SIVAL(outbuf, 8 + (i*4), sid->sub_auths[i]);
366 /*****************************************************************
367 parse a on-the-wire SID to a DOM_SID
368 *****************************************************************/
369 BOOL sid_parse(char *inbuf, size_t len, DOM_SID *sid)
372 if (len < 8) return False;
376 sid->sid_rev_num = CVAL(inbuf, 0);
377 sid->num_auths = CVAL(inbuf, 1);
378 memcpy(sid->id_auth, inbuf+2, 6);
379 if (len < 8 + sid->num_auths*4) return False;
380 for (i=0;i<sid->num_auths;i++) {
381 sid->sub_auths[i] = IVAL(inbuf, 8+i*4);
387 /*****************************************************************
388 Compare the auth portion of two sids.
389 *****************************************************************/
390 static int sid_compare_auth(const DOM_SID *sid1, const DOM_SID *sid2)
394 if (sid1 == sid2) return 0;
395 if (!sid1) return -1;
398 if (sid1->sid_rev_num != sid2->sid_rev_num)
399 return sid1->sid_rev_num - sid2->sid_rev_num;
401 for (i = 0; i < 6; i++)
402 if (sid1->id_auth[i] != sid2->id_auth[i])
403 return sid1->id_auth[i] - sid2->id_auth[i];
408 /*****************************************************************
410 *****************************************************************/
411 int sid_compare(const DOM_SID *sid1, const DOM_SID *sid2)
415 if (sid1 == sid2) return 0;
416 if (!sid1) return -1;
419 /* compare most likely different rids, first: i.e start at end */
420 if (sid1->num_auths != sid2->num_auths)
421 return sid1->num_auths - sid2->num_auths;
423 for (i = sid1->num_auths-1; i >= 0; --i)
424 if (sid1->sub_auths[i] != sid2->sub_auths[i])
425 return sid1->sub_auths[i] - sid2->sub_auths[i];
427 return sid_compare_auth(sid1, sid2);
430 /*****************************************************************
431 see if 2 SIDs are in the same domain
432 this just compares the leading sub-auths
433 *****************************************************************/
434 int sid_compare_domain(const DOM_SID *sid1, const DOM_SID *sid2)
438 n = MIN(sid1->num_auths, sid2->num_auths);
440 for (i = n-1; i >= 0; --i)
441 if (sid1->sub_auths[i] != sid2->sub_auths[i])
442 return sid1->sub_auths[i] - sid2->sub_auths[i];
444 return sid_compare_auth(sid1, sid2);
447 /*****************************************************************
449 *****************************************************************/
450 BOOL sid_equal(const DOM_SID *sid1, const DOM_SID *sid2)
452 return sid_compare(sid1, sid2) == 0;
457 /*****************************************************************
458 Check if the SID is the builtin SID (S-1-5-32).
459 *****************************************************************/
460 BOOL sid_check_is_builtin(const DOM_SID *sid)
462 return sid_equal(sid, &global_sid_Builtin);
466 /*****************************************************************
467 Check if the SID is our domain SID (S-1-5-21-x-y-z).
468 *****************************************************************/
469 BOOL sid_check_is_in_builtin(const DOM_SID *sid)
474 sid_copy(&dom_sid, sid);
475 sid_split_rid(&dom_sid, &rid);
477 return sid_equal(&dom_sid, &global_sid_Builtin);
481 /*****************************************************************
482 Calculates size of a sid.
483 *****************************************************************/
485 size_t sid_size(DOM_SID *sid)
490 return sid->num_auths * sizeof(uint32) + 8;
493 /*****************************************************************
494 Returns true if SID is internal (and non-mappable).
495 *****************************************************************/
497 BOOL non_mappable_sid(DOM_SID *sid)
503 sid_split_rid(&dom, &rid);
505 if (sid_equal(&dom, &global_sid_Builtin))
508 if (sid_equal(&dom, &global_sid_Creator_Owner_Domain))
511 if (sid_equal(&dom, &global_sid_NT_Authority))
518 return the binary string representation of a DOM_SID
521 char *sid_binstring(DOM_SID *sid)
524 int len = sid_size(sid);
526 if (!buf) return NULL;
527 sid_linearize(buf, len, sid);
528 s = binary_string(buf, len);
535 print a GUID structure for debugging
537 void print_guid(GUID *guid)
541 d_printf("%08x-%04x-%04x",
542 IVAL(guid->info, 0), SVAL(guid->info, 4), SVAL(guid->info, 6));
543 d_printf("-%02x%02x-", guid->info[8], guid->info[9]);
544 for (i=10;i<GUID_SIZE;i++)
545 d_printf("%02x", guid->info[i]);