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
8 Copyright (C) Simo Sorce 2002
9 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2005
10 Copyright (C) Andrew Bartlett 2010
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program. If not, see <http://www.gnu.org/licenses/>.
27 #include "../librpc/gen_ndr/ndr_security.h"
28 #include "../librpc/gen_ndr/netlogon.h"
29 #include "../libcli/security/security.h"
32 * Some useful sids, more well known sids can be found at
33 * http://support.microsoft.com/kb/243330/EN-US/
37 const struct dom_sid global_sid_World_Domain = /* Everyone domain */
38 { 1, 0, {0,0,0,0,0,1}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
39 const struct dom_sid global_sid_World = /* Everyone */
40 { 1, 1, {0,0,0,0,0,1}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
41 const struct dom_sid global_sid_Local_Authority = /* Local Authority */
42 { 1, 0, {0,0,0,0,0,2}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
43 const struct dom_sid global_sid_Creator_Owner_Domain = /* Creator Owner domain */
44 { 1, 0, {0,0,0,0,0,3}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
45 const struct dom_sid global_sid_NT_Authority = /* NT Authority */
46 { 1, 0, {0,0,0,0,0,5}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
47 const struct dom_sid global_sid_System = /* System */
48 { 1, 1, {0,0,0,0,0,5}, {18,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
49 const struct dom_sid global_sid_NULL = /* NULL sid */
50 { 1, 1, {0,0,0,0,0,0}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
51 const struct dom_sid global_sid_Authenticated_Users = /* All authenticated rids */
52 { 1, 1, {0,0,0,0,0,5}, {11,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
54 /* for documentation */
55 const struct dom_sid global_sid_Restriced = /* Restriced Code */
56 { 1, 1, {0,0,0,0,0,5}, {12,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
59 const struct dom_sid global_sid_Asserted_Identity = /* Asserted Identity */
60 { 1, 0, {0,0,0,0,0,18}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
61 const struct dom_sid global_sid_Asserted_Identity_Service = /* Asserted Identity Service */
62 { 1, 1, {0,0,0,0,0,18}, {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
63 const struct dom_sid global_sid_Asserted_Identity_Authentication_Authority = /* Asserted Identity Authentication Authority */
64 { 1, 1, {0,0,0,0,0,18}, {2,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
66 const struct dom_sid global_sid_Network = /* Network rids */
67 { 1, 1, {0,0,0,0,0,5}, {2,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
69 const struct dom_sid global_sid_Creator_Owner = /* Creator Owner */
70 { 1, 1, {0,0,0,0,0,3}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
71 const struct dom_sid global_sid_Creator_Group = /* Creator Group */
72 { 1, 1, {0,0,0,0,0,3}, {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
73 const struct dom_sid global_sid_Owner_Rights = /* Owner Rights */
74 { 1, 1, {0,0,0,0,0,3}, {4,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
75 const struct dom_sid global_sid_Anonymous = /* Anonymous login */
76 { 1, 1, {0,0,0,0,0,5}, {7,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
77 const struct dom_sid global_sid_Enterprise_DCs = /* Enterprise DCs */
78 { 1, 1, {0,0,0,0,0,5}, {9,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
79 const struct dom_sid global_sid_Builtin = /* Local well-known domain */
80 { 1, 1, {0,0,0,0,0,5}, {32,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
81 const struct dom_sid global_sid_Builtin_Administrators = /* Builtin administrators */
82 { 1, 2, {0,0,0,0,0,5}, {32,544,0,0,0,0,0,0,0,0,0,0,0,0,0}};
83 const struct dom_sid global_sid_Builtin_Users = /* Builtin users */
84 { 1, 2, {0,0,0,0,0,5}, {32,545,0,0,0,0,0,0,0,0,0,0,0,0,0}};
85 const struct dom_sid global_sid_Builtin_Guests = /* Builtin guest users */
86 { 1, 2, {0,0,0,0,0,5}, {32,546,0,0,0,0,0,0,0,0,0,0,0,0,0}};
87 const struct dom_sid global_sid_Builtin_Power_Users = /* Builtin power users */
88 { 1, 2, {0,0,0,0,0,5}, {32,547,0,0,0,0,0,0,0,0,0,0,0,0,0}};
89 const struct dom_sid global_sid_Builtin_Account_Operators = /* Builtin account operators */
90 { 1, 2, {0,0,0,0,0,5}, {32,548,0,0,0,0,0,0,0,0,0,0,0,0,0}};
91 const struct dom_sid global_sid_Builtin_Server_Operators = /* Builtin server operators */
92 { 1, 2, {0,0,0,0,0,5}, {32,549,0,0,0,0,0,0,0,0,0,0,0,0,0}};
93 const struct dom_sid global_sid_Builtin_Print_Operators = /* Builtin print operators */
94 { 1, 2, {0,0,0,0,0,5}, {32,550,0,0,0,0,0,0,0,0,0,0,0,0,0}};
95 const struct dom_sid global_sid_Builtin_Backup_Operators = /* Builtin backup operators */
96 { 1, 2, {0,0,0,0,0,5}, {32,551,0,0,0,0,0,0,0,0,0,0,0,0,0}};
97 const struct dom_sid global_sid_Builtin_Replicator = /* Builtin replicator */
98 { 1, 2, {0,0,0,0,0,5}, {32,552,0,0,0,0,0,0,0,0,0,0,0,0,0}};
99 const struct dom_sid global_sid_Builtin_PreWin2kAccess = /* Builtin pre win2k access */
100 { 1, 2, {0,0,0,0,0,5}, {32,554,0,0,0,0,0,0,0,0,0,0,0,0,0}};
102 const struct dom_sid global_sid_Unix_Users = /* Unmapped Unix users */
103 { 1, 1, {0,0,0,0,0,22}, {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
104 const struct dom_sid global_sid_Unix_Groups = /* Unmapped Unix groups */
105 { 1, 1, {0,0,0,0,0,22}, {2,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
108 * http://technet.microsoft.com/en-us/library/hh509017(v=ws.10).aspx
110 const struct dom_sid global_sid_Unix_NFS = /* MS NFS and Apple style */
111 { 1, 1, {0,0,0,0,0,5}, {88,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
112 const struct dom_sid global_sid_Unix_NFS_Users = /* Unix uid, MS NFS and Apple style */
113 { 1, 2, {0,0,0,0,0,5}, {88,1,0,0,0,0,0,0,0,0,0,0,0,0,0}};
114 const struct dom_sid global_sid_Unix_NFS_Groups = /* Unix gid, MS NFS and Apple style */
115 { 1, 2, {0,0,0,0,0,5}, {88,2,0,0,0,0,0,0,0,0,0,0,0,0,0}};
116 const struct dom_sid global_sid_Unix_NFS_Mode = /* Unix mode */
117 { 1, 2, {0,0,0,0,0,5}, {88,3,0,0,0,0,0,0,0,0,0,0,0,0,0}};
118 /* Unused, left here for documentary purposes */
120 const struct dom_sid global_sid_Unix_NFS_Other = /* Unix other, MS NFS and Apple style */
121 { 1, 2, {0,0,0,0,0,5}, {88,4,0,0,0,0,0,0,0,0,0,0,0,0,0}};
124 /* Unused, left here for documentary purposes */
126 #define SECURITY_NULL_SID_AUTHORITY 0
127 #define SECURITY_WORLD_SID_AUTHORITY 1
128 #define SECURITY_LOCAL_SID_AUTHORITY 2
129 #define SECURITY_CREATOR_SID_AUTHORITY 3
130 #define SECURITY_NT_AUTHORITY 5
133 static struct dom_sid system_sid_array[1] =
134 { { 1, 1, {0,0,0,0,0,5}, {18,0,0,0,0,0,0,0,0,0,0,0,0,0,0}} };
135 static const struct security_token system_token = {
136 .num_sids = ARRAY_SIZE(system_sid_array),
137 .sids = system_sid_array,
138 .privilege_mask = SE_ALL_PRIVS
141 /****************************************************************************
142 Lookup string names for SID types.
143 ****************************************************************************/
145 static const struct {
146 enum lsa_SidType sid_type;
148 } sid_name_type[] = {
149 {SID_NAME_USE_NONE, "None"},
150 {SID_NAME_USER, "User"},
151 {SID_NAME_DOM_GRP, "Domain Group"},
152 {SID_NAME_DOMAIN, "Domain"},
153 {SID_NAME_ALIAS, "Local Group"},
154 {SID_NAME_WKN_GRP, "Well-known Group"},
155 {SID_NAME_DELETED, "Deleted Account"},
156 {SID_NAME_INVALID, "Invalid Account"},
157 {SID_NAME_UNKNOWN, "UNKNOWN"},
158 {SID_NAME_COMPUTER, "Computer"}
161 const char *sid_type_lookup(uint32_t sid_type)
165 /* Look through list */
166 for (i=0; i < ARRAY_SIZE(sid_name_type); i++) {
167 if (sid_name_type[i].sid_type == sid_type) {
168 return sid_name_type[i].string;
173 return "SID *TYPE* is INVALID";
176 /**************************************************************************
177 Create the SYSTEM token.
178 ***************************************************************************/
180 const struct security_token *get_system_token(void)
182 return &system_token;
185 bool sid_compose(struct dom_sid *dst, const struct dom_sid *domain_sid, uint32_t rid)
187 sid_copy(dst, domain_sid);
188 return sid_append_rid(dst, rid);
191 /*****************************************************************
192 Removes the last rid from the end of a sid
193 *****************************************************************/
195 bool sid_split_rid(struct dom_sid *sid, uint32_t *rid)
197 if (sid->num_auths > 0) {
200 *rid = sid->sub_auths[sid->num_auths];
207 /*****************************************************************
208 Return the last rid from the end of a sid
209 *****************************************************************/
211 bool sid_peek_rid(const struct dom_sid *sid, uint32_t *rid)
216 if (sid->num_auths > 0) {
217 *rid = sid->sub_auths[sid->num_auths - 1];
223 /*****************************************************************
224 Return the last rid from the end of a sid
225 and check the sid against the exp_dom_sid
226 *****************************************************************/
228 bool sid_peek_check_rid(const struct dom_sid *exp_dom_sid, const struct dom_sid *sid, uint32_t *rid)
230 if (!exp_dom_sid || !sid || !rid)
233 if (sid->num_auths != (exp_dom_sid->num_auths+1)) {
237 if (sid_compare_domain(exp_dom_sid, sid)!=0){
242 return sid_peek_rid(sid, rid);
245 /*****************************************************************
247 *****************************************************************/
249 void sid_copy(struct dom_sid *dst, const struct dom_sid *src)
253 *dst = (struct dom_sid) {
254 .sid_rev_num = src->sid_rev_num,
255 .num_auths = src->num_auths,
258 memcpy(&dst->id_auth[0], &src->id_auth[0], sizeof(src->id_auth));
260 for (i = 0; i < src->num_auths; i++)
261 dst->sub_auths[i] = src->sub_auths[i];
264 /*****************************************************************
265 Parse a on-the-wire SID to a struct dom_sid.
266 *****************************************************************/
268 bool sid_parse(const uint8_t *inbuf, size_t len, struct dom_sid *sid)
270 DATA_BLOB in = data_blob_const(inbuf, len);
271 enum ndr_err_code ndr_err;
273 ndr_err = ndr_pull_struct_blob_all(
274 &in, NULL, sid, (ndr_pull_flags_fn_t)ndr_pull_dom_sid);
275 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
281 /*****************************************************************
282 See if 2 SIDs are in the same domain
283 this just compares the leading sub-auths
284 *****************************************************************/
286 int sid_compare_domain(const struct dom_sid *sid1, const struct dom_sid *sid2)
290 n = MIN(sid1->num_auths, sid2->num_auths);
292 for (i = n-1; i >= 0; --i)
293 if (sid1->sub_auths[i] != sid2->sub_auths[i])
294 return sid1->sub_auths[i] - sid2->sub_auths[i];
296 return dom_sid_compare_auth(sid1, sid2);
299 /********************************************************************
300 Add SID to an array SIDs
301 ********************************************************************/
303 NTSTATUS add_sid_to_array(TALLOC_CTX *mem_ctx, const struct dom_sid *sid,
304 struct dom_sid **sids, uint32_t *num)
306 *sids = talloc_realloc(mem_ctx, *sids, struct dom_sid,
310 return NT_STATUS_NO_MEMORY;
313 sid_copy(&((*sids)[*num]), sid);
320 /********************************************************************
321 Add SID to an array SIDs ensuring that it is not already there
322 ********************************************************************/
324 NTSTATUS add_sid_to_array_unique(TALLOC_CTX *mem_ctx, const struct dom_sid *sid,
325 struct dom_sid **sids, uint32_t *num_sids)
329 for (i=0; i<(*num_sids); i++) {
330 if (dom_sid_equal(sid, &(*sids)[i])) {
335 return add_sid_to_array(mem_ctx, sid, sids, num_sids);
338 /********************************************************************
339 Remove SID from an array
340 ********************************************************************/
342 void del_sid_from_array(const struct dom_sid *sid, struct dom_sid **sids,
345 struct dom_sid *sid_list = *sids;
348 for ( i=0; i<*num; i++ ) {
350 /* if we find the SID, then decrement the count
351 and break out of the loop */
353 if (dom_sid_equal(sid, &sid_list[i])) {
359 /* This loop will copy the remainder of the array
360 if i < num of sids in the array */
362 for ( ; i<*num; i++ ) {
363 sid_copy( &sid_list[i], &sid_list[i+1] );
369 bool add_rid_to_array_unique(TALLOC_CTX *mem_ctx,
370 uint32_t rid, uint32_t **pp_rids, size_t *p_num)
374 for (i=0; i<*p_num; i++) {
375 if ((*pp_rids)[i] == rid)
379 *pp_rids = talloc_realloc(mem_ctx, *pp_rids, uint32_t, *p_num+1);
381 if (*pp_rids == NULL) {
386 (*pp_rids)[*p_num] = rid;
391 bool is_null_sid(const struct dom_sid *sid)
393 static const struct dom_sid null_sid = {0};
394 return dom_sid_equal(sid, &null_sid);