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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/*
Copyright (C) 2013 Simo Sorce <simo@samba.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <gssapi/gssapi.h>
#include <gssapi/gssapi_ext.h>
#include "gss_ntlmssp.h"
/* 1.3.6.1.4.1.311.2.2.10 */
const gss_OID_desc gssntlm_oid = {
.length = 10,
.elements = "\x2b\x06\x01\x04\x01\x82\x37\x02\x02\x0a"
};
uint8_t gssntlm_required_security(int security_level,
enum gssntlm_role role)
{
uint8_t resp;
/* DC defaults */
resp = SEC_DC_LM_OK | SEC_DC_NTLM_OK | SEC_DC_V2_OK;
switch (security_level) {
case 0:
resp |= SEC_LM_OK | SEC_NTLM_OK;
break;
case 1:
resp |= SEC_LM_OK | SEC_NTLM_OK | SEC_EXT_SEC_OK;
break;
case 2:
resp |= SEC_NTLM_OK | SEC_EXT_SEC_OK;
break;
case 3:
resp |= SEC_V2_ONLY | SEC_EXT_SEC_OK;
break;
case 4:
resp |= SEC_NTLM_OK | SEC_EXT_SEC_OK;
if (role == GSSNTLM_DOMAIN_CONTROLLER) resp &= ~SEC_DC_LM_OK;
break;
case 5:
if (role == GSSNTLM_DOMAIN_CONTROLLER) resp = SEC_DC_V2_OK;
resp |= SEC_V2_ONLY | SEC_EXT_SEC_OK;
break;
default:
resp = 0xff;
break;
}
return resp;
}
int gssntlm_copy_creds(struct gssntlm_cred *in, struct gssntlm_cred *out)
{
char *dom = NULL, *usr = NULL;
int ret = 0;
out->type = GSSNTLM_CRED_NONE;
switch (in->type) {
case GSSNTLM_CRED_NONE:
break;
case GSSNTLM_CRED_ANON:
out->cred.anon.dummy = 1;
break;
case GSSNTLM_CRED_USER:
dom = strdup(in->cred.user.user.data.user.domain);
if (!dom) {
ret = ENOMEM;
goto done;
}
usr = strdup(in->cred.user.user.data.user.name);
if (!usr) {
ret = ENOMEM;
goto done;
}
out->cred.user.user.data.user.domain = dom;
out->cred.user.user.data.user.name = usr;
break;
case GSSNTLM_CRED_SERVER:
out->cred.server.dummy = 1;
break;
}
out->type = in->type;
done:
if (ret) {
safefree(dom);
safefree(usr);
}
return ret;
}
void gssntlm_int_release_cred(struct gssntlm_cred *cred)
{
switch (cred->type) {
case GSSNTLM_CRED_NONE:
break;
case GSSNTLM_CRED_ANON:
cred->cred.anon.dummy = 0;
break;
case GSSNTLM_CRED_USER:
safefree(cred->cred.user.user.data.user.domain);
safefree(cred->cred.user.user.data.user.name);
safezero(cred->cred.user.nt_hash.data, 16);
cred->cred.user.nt_hash.length = 0;
safezero(cred->cred.user.lm_hash.data, 16);
cred->cred.user.lm_hash.length = 0;
break;
case GSSNTLM_CRED_SERVER:
cred->cred.server.dummy = 0;
break;
}
}
uint32_t gssntlm_acquire_cred(uint32_t *minor_status,
gss_name_t desired_name,
uint32_t time_req,
gss_OID_set desired_mechs,
gss_cred_usage_t cred_usage,
gss_cred_id_t *output_cred_handle,
gss_OID_set *actual_mechs,
uint32_t *time_rec)
{
/* FIXME: Fecth creds from somewhere */
*minor_status = 0;
return GSS_S_CRED_UNAVAIL;
}
uint32_t gssntlm_release_cred(uint32_t *minor_status,
gss_cred_id_t *cred_handle)
{
*minor_status = 0;
if (!cred_handle) return GSS_S_COMPLETE;
gssntlm_int_release_cred((struct gssntlm_cred *)*cred_handle);
safefree(*cred_handle);
return GSS_S_COMPLETE;
}
|
