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
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/*
Unix SMB/CIFS implementation.
manipulate privilege records in samdb
Copyright (C) Andrew Tridgell 2004
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "libcli/ldap/ldap_ndr.h"
#include "dsdb/samdb/samdb.h"
#include "auth/auth.h"
#include "libcli/security/security.h"
#include "../lib/util/util_ldb.h"
#include "param/param.h"
#include "ldb_wrap.h"
/* connect to the privilege database */
struct ldb_context *privilege_connect(TALLOC_CTX *mem_ctx,
struct tevent_context *ev_ctx,
struct loadparm_context *lp_ctx)
{
return ldb_wrap_connect(mem_ctx, ev_ctx, lp_ctx, "privilege.ldb",
NULL, NULL, 0);
}
/*
add privilege bits for one sid to a security_token
*/
static NTSTATUS samdb_privilege_setup_sid(struct ldb_context *pdb, TALLOC_CTX *mem_ctx,
struct security_token *token,
const struct dom_sid *sid)
{
const char * const attrs[] = { "privilege", NULL };
struct ldb_message **res = NULL;
struct ldb_message_element *el;
unsigned int i;
int ret;
char *sidstr;
sidstr = ldap_encode_ndr_dom_sid(mem_ctx, sid);
NT_STATUS_HAVE_NO_MEMORY(sidstr);
ret = gendb_search(pdb, mem_ctx, NULL, &res, attrs, "objectSid=%s", sidstr);
talloc_free(sidstr);
if (ret != 1) {
/* not an error to not match */
return NT_STATUS_OK;
}
el = ldb_msg_find_element(res[0], "privilege");
if (el == NULL) {
return NT_STATUS_OK;
}
for (i=0;i<el->num_values;i++) {
const char *priv_str = (const char *)el->values[i].data;
enum sec_privilege privilege = sec_privilege_id(priv_str);
if (privilege == -1) {
DEBUG(1,("Unknown privilege '%s' in samdb\n",
priv_str));
continue;
}
security_token_set_privilege(token, privilege);
}
return NT_STATUS_OK;
}
/*
setup the privilege mask for this security token based on our
local SAM
*/
NTSTATUS samdb_privilege_setup(struct tevent_context *ev_ctx,
struct loadparm_context *lp_ctx, struct security_token *token)
{
struct ldb_context *pdb;
TALLOC_CTX *mem_ctx;
unsigned int i;
NTSTATUS status;
/* Shortcuts to prevent recursion and avoid lookups */
if (token->user_sid == NULL) {
token->privilege_mask = 0;
return NT_STATUS_OK;
}
if (security_token_is_system(token)) {
token->privilege_mask = ~0;
return NT_STATUS_OK;
}
if (security_token_is_anonymous(token)) {
token->privilege_mask = 0;
return NT_STATUS_OK;
}
mem_ctx = talloc_new(token);
pdb = privilege_connect(mem_ctx, ev_ctx, lp_ctx);
if (pdb == NULL) {
talloc_free(mem_ctx);
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
token->privilege_mask = 0;
for (i=0;i<token->num_sids;i++) {
status = samdb_privilege_setup_sid(pdb, mem_ctx,
token, token->sids[i]);
if (!NT_STATUS_IS_OK(status)) {
talloc_free(mem_ctx);
return status;
}
}
talloc_free(mem_ctx);
return NT_STATUS_OK;
}
|
