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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
/*
* Unix SMB/CIFS implementation.
* Version 3.0
* NTLMSSP Signing routines
* Copyright (C) Luke Kenneth Casson Leighton 1996-2001
* Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003-2005
*
* 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 "auth/ntlmssp/ntlmssp.h"
#include "auth/gensec/gensec.h"
#include "auth/ntlmssp/ntlmssp_private.h"
NTSTATUS gensec_ntlmssp_magic(struct gensec_security *gensec_security,
const DATA_BLOB *first_packet)
{
if (ntlmssp_blob_matches_magic(first_packet)) {
return NT_STATUS_OK;
} else {
return NT_STATUS_INVALID_PARAMETER;
}
}
/**
* Return the NTLMSSP master session key
*
* @param ntlmssp_state NTLMSSP State
*/
NTSTATUS gensec_ntlmssp_session_key(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
DATA_BLOB *session_key)
{
struct gensec_ntlmssp_context *gensec_ntlmssp =
talloc_get_type_abort(gensec_security->private_data,
struct gensec_ntlmssp_context);
struct ntlmssp_state *ntlmssp_state = gensec_ntlmssp->ntlmssp_state;
if (ntlmssp_state->expected_state != NTLMSSP_DONE) {
return NT_STATUS_NO_USER_SESSION_KEY;
}
if (!ntlmssp_state->session_key.data) {
return NT_STATUS_NO_USER_SESSION_KEY;
}
*session_key = data_blob_talloc(mem_ctx, ntlmssp_state->session_key.data, ntlmssp_state->session_key.length);
if (!session_key->data) {
return NT_STATUS_NO_MEMORY;
}
return NT_STATUS_OK;
}
bool gensec_ntlmssp_have_feature(struct gensec_security *gensec_security,
uint32_t feature)
{
struct gensec_ntlmssp_context *gensec_ntlmssp =
talloc_get_type_abort(gensec_security->private_data,
struct gensec_ntlmssp_context);
struct ntlmssp_state *ntlmssp_state = gensec_ntlmssp->ntlmssp_state;
if (feature & GENSEC_FEATURE_SIGN) {
if (!ntlmssp_state->session_key.length) {
return false;
}
if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN) {
return true;
}
}
if (feature & GENSEC_FEATURE_SEAL) {
if (!ntlmssp_state->session_key.length) {
return false;
}
if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL) {
return true;
}
}
if (feature & GENSEC_FEATURE_SESSION_KEY) {
if (ntlmssp_state->session_key.length) {
return true;
}
}
if (feature & GENSEC_FEATURE_DCE_STYLE) {
return true;
}
if (feature & GENSEC_FEATURE_ASYNC_REPLIES) {
if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
return true;
}
}
return false;
}
NTSTATUS gensec_ntlmssp_start(struct gensec_security *gensec_security)
{
struct gensec_ntlmssp_context *gensec_ntlmssp;
gensec_ntlmssp = talloc_zero(gensec_security,
struct gensec_ntlmssp_context);
if (!gensec_ntlmssp) {
return NT_STATUS_NO_MEMORY;
}
gensec_ntlmssp->gensec_security = gensec_security;
gensec_security->private_data = gensec_ntlmssp;
return NT_STATUS_OK;
}
NTSTATUS gensec_ntlmssp_sign_packet(struct gensec_security *gensec_security,
TALLOC_CTX *sig_mem_ctx,
const uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
DATA_BLOB *sig)
{
struct gensec_ntlmssp_context *gensec_ntlmssp =
talloc_get_type_abort(gensec_security->private_data,
struct gensec_ntlmssp_context);
NTSTATUS nt_status;
nt_status = ntlmssp_sign_packet(gensec_ntlmssp->ntlmssp_state,
sig_mem_ctx,
data, length,
whole_pdu, pdu_length,
sig);
return nt_status;
}
NTSTATUS gensec_ntlmssp_check_packet(struct gensec_security *gensec_security,
const uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
const DATA_BLOB *sig)
{
struct gensec_ntlmssp_context *gensec_ntlmssp =
talloc_get_type_abort(gensec_security->private_data,
struct gensec_ntlmssp_context);
NTSTATUS nt_status;
nt_status = ntlmssp_check_packet(gensec_ntlmssp->ntlmssp_state,
data, length,
whole_pdu, pdu_length,
sig);
return nt_status;
}
NTSTATUS gensec_ntlmssp_seal_packet(struct gensec_security *gensec_security,
TALLOC_CTX *sig_mem_ctx,
uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
DATA_BLOB *sig)
{
struct gensec_ntlmssp_context *gensec_ntlmssp =
talloc_get_type_abort(gensec_security->private_data,
struct gensec_ntlmssp_context);
NTSTATUS nt_status;
nt_status = ntlmssp_seal_packet(gensec_ntlmssp->ntlmssp_state,
sig_mem_ctx,
data, length,
whole_pdu, pdu_length,
sig);
return nt_status;
}
/*
wrappers for the ntlmssp_*() functions
*/
NTSTATUS gensec_ntlmssp_unseal_packet(struct gensec_security *gensec_security,
uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
const DATA_BLOB *sig)
{
struct gensec_ntlmssp_context *gensec_ntlmssp =
talloc_get_type_abort(gensec_security->private_data,
struct gensec_ntlmssp_context);
NTSTATUS nt_status;
nt_status = ntlmssp_unseal_packet(gensec_ntlmssp->ntlmssp_state,
data, length,
whole_pdu, pdu_length,
sig);
return nt_status;
}
size_t gensec_ntlmssp_sig_size(struct gensec_security *gensec_security, size_t data_size)
{
return NTLMSSP_SIG_SIZE;
}
NTSTATUS gensec_ntlmssp_wrap(struct gensec_security *gensec_security,
TALLOC_CTX *out_mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out)
{
struct gensec_ntlmssp_context *gensec_ntlmssp =
talloc_get_type_abort(gensec_security->private_data,
struct gensec_ntlmssp_context);
return ntlmssp_wrap(gensec_ntlmssp->ntlmssp_state,
out_mem_ctx,
in, out);
}
NTSTATUS gensec_ntlmssp_unwrap(struct gensec_security *gensec_security,
TALLOC_CTX *out_mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out)
{
struct gensec_ntlmssp_context *gensec_ntlmssp =
talloc_get_type_abort(gensec_security->private_data,
struct gensec_ntlmssp_context);
return ntlmssp_unwrap(gensec_ntlmssp->ntlmssp_state,
out_mem_ctx,
in, out);
}
|
