1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
/*
Unix SMB/CIFS implementation.
Password and authentication handling
Copyright (C) Jeremy Allison 1996-1998
Copyright (C) Luke Kenneth Casson Leighton 1996-1998
Copyright (C) Gerald (Jerry) Carter 2000
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
/****************************************************************************
Read a SID from a file. This is for compatibility with the old MACHINE.SID
style of SID storage
****************************************************************************/
static BOOL read_sid_from_file(const char *fname, DOM_SID *sid)
{
char **lines;
int numlines;
BOOL ret;
lines = file_lines_load(fname, &numlines);
if (!lines || numlines < 1) {
if (lines) file_lines_free(lines);
return False;
}
ret = string_to_sid(sid, lines[0]);
file_lines_free(lines);
return ret;
}
/*
generate a random sid - used to build our own sid if we don't have one
*/
static void generate_random_sid(DOM_SID *sid)
{
int i;
uchar raw_sid_data[12];
memset((char *)sid, '\0', sizeof(*sid));
sid->sid_rev_num = 1;
sid->id_auth[5] = 5;
sid->num_auths = 0;
sid->sub_auths[sid->num_auths++] = 21;
generate_random_buffer(raw_sid_data, 12, True);
for (i = 0; i < 3; i++)
sid->sub_auths[sid->num_auths++] = IVAL(raw_sid_data, i*4);
}
/****************************************************************************
Generate the global machine sid.
****************************************************************************/
BOOL pdb_generate_sam_sid(void)
{
char *fname = NULL;
char *domain_name;
extern pstring global_myname;
extern fstring global_myworkgroup;
generate_wellknown_sids();
/* the local SAMR sid is based on the workgroup only when we are a DC */
switch (lp_server_role()) {
case ROLE_DOMAIN_PDC:
case ROLE_DOMAIN_BDC:
domain_name = global_myworkgroup;
break;
default:
domain_name = global_myname;
break;
}
if (secrets_fetch_domain_sid(domain_name, &global_sam_sid)) {
return True;
}
/* check for an old MACHINE.SID file for backwards compatibility */
asprintf(&fname, "%s/MACHINE.SID", lp_private_dir());
if (read_sid_from_file(fname, &global_sam_sid)) {
/* remember it for future reference and unlink the old MACHINE.SID */
if (secrets_store_domain_sid(domain_name, &global_sam_sid)) {
unlink(fname);
}
return True;
}
/* we don't have the SID in secrets.tdb, we will need to
generate one and save it */
generate_random_sid(&global_sam_sid);
return secrets_store_domain_sid(domain_name, &global_sam_sid);
}
|
