2 Unix SMB/CIFS implementation.
3 Samba utility functions
5 Copyright (C) Stefan (metze) Metzmacher 2002-2004
6 Copyright (C) Andrew Tridgell 1992-2004
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.
25 #include "librpc/gen_ndr/security.h"
27 /*****************************************************************
28 Compare the auth portion of two sids.
29 *****************************************************************/
31 static int dom_sid_compare_auth(const struct dom_sid *sid1, const struct dom_sid *sid2)
42 if (sid1->sid_rev_num != sid2->sid_rev_num)
43 return sid1->sid_rev_num - sid2->sid_rev_num;
45 for (i = 0; i < 6; i++)
46 if (sid1->id_auth[i] != sid2->id_auth[i])
47 return sid1->id_auth[i] - sid2->id_auth[i];
52 /*****************************************************************
54 *****************************************************************/
56 static int dom_sid_compare(const struct dom_sid *sid1, const struct dom_sid *sid2)
67 /* Compare most likely different rids, first: i.e start at end */
68 if (sid1->num_auths != sid2->num_auths)
69 return sid1->num_auths - sid2->num_auths;
71 for (i = sid1->num_auths-1; i >= 0; --i)
72 if (sid1->sub_auths[i] != sid2->sub_auths[i])
73 return sid1->sub_auths[i] - sid2->sub_auths[i];
75 return dom_sid_compare_auth(sid1, sid2);
78 /*****************************************************************
80 *****************************************************************/
82 BOOL dom_sid_equal(const struct dom_sid *sid1, const struct dom_sid *sid2)
84 return dom_sid_compare(sid1, sid2) == 0;
89 convert a string to a dom_sid, returning a talloc'd dom_sid
91 struct dom_sid *dom_sid_parse_talloc(TALLOC_CTX *mem_ctx, const char *sidstr)
94 uint_t rev, ia, num_sub_auths, i;
97 if (strncasecmp(sidstr, "S-", 2)) {
103 rev = strtol(sidstr, &p, 10);
109 ia = strtol(sidstr, &p, 10);
116 for (i=0;sidstr[i];i++) {
117 if (sidstr[i] == '-') num_sub_auths++;
120 ret = talloc(mem_ctx, struct dom_sid);
125 ret->sub_auths = talloc_array(ret, uint32_t, num_sub_auths);
126 if (!ret->sub_auths) {
130 ret->sid_rev_num = rev;
133 ret->id_auth[2] = ia >> 24;
134 ret->id_auth[3] = ia >> 16;
135 ret->id_auth[4] = ia >> 8;
136 ret->id_auth[5] = ia;
137 ret->num_auths = num_sub_auths;
139 for (i=0;i<num_sub_auths;i++) {
140 if (sidstr[0] != '-') {
144 ret->sub_auths[i] = strtoul(sidstr, &p, 10);
155 copy a dom_sid structure
157 struct dom_sid *dom_sid_dup(TALLOC_CTX *mem_ctx, const struct dom_sid *dom_sid)
166 ret = talloc(mem_ctx, struct dom_sid);
171 ret->sub_auths = talloc_array(ret, uint32_t, dom_sid->num_auths);
172 if (!ret->sub_auths) {
176 ret->sid_rev_num = dom_sid->sid_rev_num;
177 ret->id_auth[0] = dom_sid->id_auth[0];
178 ret->id_auth[1] = dom_sid->id_auth[1];
179 ret->id_auth[2] = dom_sid->id_auth[2];
180 ret->id_auth[3] = dom_sid->id_auth[3];
181 ret->id_auth[4] = dom_sid->id_auth[4];
182 ret->id_auth[5] = dom_sid->id_auth[5];
183 ret->num_auths = dom_sid->num_auths;
185 for (i=0;i<dom_sid->num_auths;i++) {
186 ret->sub_auths[i] = dom_sid->sub_auths[i];
193 add a rid to a domain dom_sid to make a full dom_sid. This function
194 returns a new sid in the suppplied memory context
196 struct dom_sid *dom_sid_add_rid(TALLOC_CTX *mem_ctx,
197 const struct dom_sid *domain_sid,
202 sid = talloc(mem_ctx, struct dom_sid);
203 if (!sid) return NULL;
207 sid->sub_auths = talloc_array(sid, uint32_t, sid->num_auths+1);
208 if (!sid->sub_auths) {
211 memcpy(sid->sub_auths, domain_sid->sub_auths, sid->num_auths*sizeof(uint32_t));
212 sid->sub_auths[sid->num_auths] = rid;
220 return True if the 2nd sid is in the domain given by the first sid
222 BOOL dom_sid_in_domain(const struct dom_sid *domain_sid,
223 const struct dom_sid *sid)
227 if (!domain_sid || !sid) {
231 if (domain_sid->num_auths > sid->num_auths) {
235 for (i = domain_sid->num_auths-1; i >= 0; --i) {
236 if (domain_sid->sub_auths[i] != sid->sub_auths[i]) {
241 return dom_sid_compare_auth(domain_sid, sid) == 0;