2 Unix SMB/Netbios implementation.
4 Samba utility functions
5 Copyright (C) Andrew Tridgell 1992-1998
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 extern int DEBUGLEVEL;
28 /*****************************************************************
29 Convert a SID to an ascii string.
30 *****************************************************************/
32 char *sid_to_string(pstring sidstr_out, DOM_SID *sid)
36 /* BIG NOTE: this function only does SIDS where the identauth is not >= 2^32 */
37 uint32 ia = (sid->id_auth[5]) +
38 (sid->id_auth[4] << 8 ) +
39 (sid->id_auth[3] << 16) +
40 (sid->id_auth[2] << 24);
42 slprintf(sidstr_out, sizeof(pstring) - 1, "S-%d-%d", sid->sid_rev_num, ia);
44 for (i = 0; i < sid->num_auths; i++)
46 slprintf(subauth, sizeof(subauth)-1, "-%u", sid->sub_auths[i]);
47 pstrcat(sidstr_out, subauth);
50 DEBUG(7,("sid_to_string returning %s\n", sidstr_out));
54 /*****************************************************************
55 Convert a string to a SID. Returns True on success, False on fail.
56 *****************************************************************/
58 BOOL string_to_sid(DOM_SID *sidout, char *sidstr)
62 /* BIG NOTE: this function only does SIDS where the identauth is not >= 2^32 */
65 memset((char *)sidout, '\0', sizeof(DOM_SID));
67 if (StrnCaseCmp( sidstr, "S-", 2)) {
68 DEBUG(0,("string_to_sid: Sid %s does not start with 'S-'.\n", sidstr));
73 if (!next_token(&p, tok, "-", sizeof(tok))) {
74 DEBUG(0,("string_to_sid: Sid %s is not in a valid format.\n", sidstr));
78 /* Get the revision number. */
79 sidout->sid_rev_num = atoi(tok);
81 if (!next_token(&p, tok, "-", sizeof(tok))) {
82 DEBUG(0,("string_to_sid: Sid %s is not in a valid format.\n", sidstr));
86 /* identauth in decimal should be < 2^32 */
89 /* NOTE - the ia value is in big-endian format. */
90 sidout->id_auth[0] = 0;
91 sidout->id_auth[1] = 0;
92 sidout->id_auth[2] = (ia & 0xff000000) >> 24;
93 sidout->id_auth[3] = (ia & 0x00ff0000) >> 16;
94 sidout->id_auth[4] = (ia & 0x0000ff00) >> 8;
95 sidout->id_auth[5] = (ia & 0x000000ff);
97 sidout->num_auths = 0;
99 while(next_token(&p, tok, "-", sizeof(tok)) &&
100 sidout->num_auths < MAXSUBAUTHS)
103 * NOTE - the subauths are in native machine-endian format. They
104 * are converted to little-endian when linearized onto the wire.
106 uint32 rid = (uint32)strtoul(tok, NULL, 10);
107 DEBUG(50,("string_to_sid: tok: %s rid 0x%x\n", tok, rid));
108 sid_append_rid(sidout, rid);
111 DEBUG(7,("string_to_sid: converted SID %s ok\n", sidstr));
116 /*****************************************************************
117 add a rid to the end of a sid
118 *****************************************************************/
119 BOOL sid_append_rid(DOM_SID *sid, uint32 rid)
121 if (sid->num_auths < MAXSUBAUTHS)
123 sid->sub_auths[sid->num_auths++] = rid;
129 /*****************************************************************
130 removes the last rid from the end of a sid
131 *****************************************************************/
132 BOOL sid_split_rid(DOM_SID *sid, uint32 *rid)
134 if (sid->num_auths > 0)
139 (*rid) = sid->sub_auths[sid->num_auths];
146 /*****************************************************************
148 *****************************************************************/
149 void sid_copy(DOM_SID *sid1, DOM_SID *sid2)
153 for (i = 0; i < 6; i++)
155 sid1->id_auth[i] = sid2->id_auth[i];
158 for (i = 0; i < sid2->num_auths; i++)
160 sid1->sub_auths[i] = sid2->sub_auths[i];
163 sid1->num_auths = sid2->num_auths;
164 sid1->sid_rev_num = sid2->sid_rev_num;
166 /*****************************************************************
168 *****************************************************************/
169 BOOL sid_equal(DOM_SID *sid1, DOM_SID *sid2)
173 /* compare most likely different rids, first: i.e start at end */
174 for (i = sid1->num_auths-1; i >= 0; --i)
176 if (sid1->sub_auths[i] != sid2->sub_auths[i]) return False;
179 if (sid1->num_auths != sid2->num_auths ) return False;
180 if (sid1->sid_rev_num != sid2->sid_rev_num) return False;
182 for (i = 0; i < 6; i++)
184 if (sid1->id_auth[i] != sid2->id_auth[i]) return False;
191 /*****************************************************************
192 calculates size of a sid
193 *****************************************************************/
194 int sid_size(DOM_SID *sid)
200 return sid->num_auths * sizeof(uint32) + 8;