Check "auth event notification" param in log_json
[nivanova/samba-autobuild/.git] / auth / ntlmssp / gensec_ntlmssp.c
1 /*
2  *  Unix SMB/CIFS implementation.
3  *  Version 3.0
4  *  NTLMSSP Signing routines
5  *  Copyright (C) Luke Kenneth Casson Leighton 1996-2001
6  *  Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003-2005
7  *
8  *  This program is free software; you can redistribute it and/or modify
9  *  it under the terms of the GNU General Public License as published by
10  *  the Free Software Foundation; either version 3 of the License, or
11  *  (at your option) any later version.
12  *
13  *  This program is distributed in the hope that it will be useful,
14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  *  GNU General Public License for more details.
17  *
18  *  You should have received a copy of the GNU General Public License
19  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
20  */
21
22 #include "includes.h"
23 #include "auth/ntlmssp/ntlmssp.h"
24 #include "auth/gensec/gensec.h"
25 #include "auth/gensec/gensec_internal.h"
26 #include "auth/ntlmssp/ntlmssp_private.h"
27
28 NTSTATUS gensec_ntlmssp_magic(struct gensec_security *gensec_security,
29                               const DATA_BLOB *first_packet)
30 {
31         if (ntlmssp_blob_matches_magic(first_packet)) {
32                 return NT_STATUS_OK;
33         } else {
34                 return NT_STATUS_INVALID_PARAMETER;
35         }
36 }
37
38 /**
39  * Return the NTLMSSP master session key
40  *
41  * @param ntlmssp_state NTLMSSP State
42  */
43
44 NTSTATUS gensec_ntlmssp_session_key(struct gensec_security *gensec_security,
45                                     TALLOC_CTX *mem_ctx,
46                                     DATA_BLOB *session_key)
47 {
48         struct gensec_ntlmssp_context *gensec_ntlmssp =
49                 talloc_get_type_abort(gensec_security->private_data,
50                                       struct gensec_ntlmssp_context);
51         struct ntlmssp_state *ntlmssp_state = gensec_ntlmssp->ntlmssp_state;
52
53         if (ntlmssp_state->expected_state != NTLMSSP_DONE) {
54                 return NT_STATUS_NO_USER_SESSION_KEY;
55         }
56
57         if (!ntlmssp_state->session_key.data) {
58                 return NT_STATUS_NO_USER_SESSION_KEY;
59         }
60         *session_key = data_blob_talloc(mem_ctx, ntlmssp_state->session_key.data, ntlmssp_state->session_key.length);
61         if (!session_key->data) {
62                 return NT_STATUS_NO_MEMORY;
63         }
64
65         return NT_STATUS_OK;
66 }
67
68 bool gensec_ntlmssp_have_feature(struct gensec_security *gensec_security,
69                                  uint32_t feature)
70 {
71         struct gensec_ntlmssp_context *gensec_ntlmssp =
72                 talloc_get_type_abort(gensec_security->private_data,
73                                       struct gensec_ntlmssp_context);
74         struct ntlmssp_state *ntlmssp_state = gensec_ntlmssp->ntlmssp_state;
75
76         if (feature & GENSEC_FEATURE_SIGN) {
77                 if (!ntlmssp_state->session_key.length) {
78                         return false;
79                 }
80                 if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN) {
81                         return true;
82                 }
83         }
84         if (feature & GENSEC_FEATURE_SEAL) {
85                 if (!ntlmssp_state->session_key.length) {
86                         return false;
87                 }
88                 if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL) {
89                         return true;
90                 }
91         }
92         if (feature & GENSEC_FEATURE_SESSION_KEY) {
93                 if (ntlmssp_state->session_key.length) {
94                         return true;
95                 }
96         }
97         if (feature & GENSEC_FEATURE_DCE_STYLE) {
98                 return true;
99         }
100         if (feature & GENSEC_FEATURE_ASYNC_REPLIES) {
101                 if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
102                         return true;
103                 }
104         }
105         if (feature & GENSEC_FEATURE_SIGN_PKT_HEADER) {
106                 return true;
107         }
108         if (feature & GENSEC_FEATURE_NEW_SPNEGO) {
109                 if (!ntlmssp_state->session_key.length) {
110                         return false;
111                 }
112                 if (!(ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
113                         return false;
114                 }
115                 return ntlmssp_state->new_spnego;
116         }
117
118         return false;
119 }
120
121 NTSTATUS gensec_ntlmssp_start(struct gensec_security *gensec_security)
122 {
123         struct gensec_ntlmssp_context *gensec_ntlmssp;
124
125         gensec_ntlmssp = talloc_zero(gensec_security,
126                                      struct gensec_ntlmssp_context);
127         if (!gensec_ntlmssp) {
128                 return NT_STATUS_NO_MEMORY;
129         }
130
131         gensec_security->private_data = gensec_ntlmssp;
132         return NT_STATUS_OK;
133 }
134
135 NTSTATUS gensec_ntlmssp_sign_packet(struct gensec_security *gensec_security,
136                                     TALLOC_CTX *sig_mem_ctx,
137                                     const uint8_t *data, size_t length,
138                                     const uint8_t *whole_pdu, size_t pdu_length,
139                                     DATA_BLOB *sig)
140 {
141         struct gensec_ntlmssp_context *gensec_ntlmssp =
142                 talloc_get_type_abort(gensec_security->private_data,
143                                       struct gensec_ntlmssp_context);
144         NTSTATUS nt_status;
145
146         nt_status = ntlmssp_sign_packet(gensec_ntlmssp->ntlmssp_state,
147                                         sig_mem_ctx,
148                                         data, length,
149                                         whole_pdu, pdu_length,
150                                         sig);
151
152         return nt_status;
153 }
154
155 NTSTATUS gensec_ntlmssp_check_packet(struct gensec_security *gensec_security,
156                                      const uint8_t *data, size_t length,
157                                      const uint8_t *whole_pdu, size_t pdu_length,
158                                      const DATA_BLOB *sig)
159 {
160         struct gensec_ntlmssp_context *gensec_ntlmssp =
161                 talloc_get_type_abort(gensec_security->private_data,
162                                       struct gensec_ntlmssp_context);
163         NTSTATUS nt_status;
164
165         nt_status = ntlmssp_check_packet(gensec_ntlmssp->ntlmssp_state,
166                                          data, length,
167                                          whole_pdu, pdu_length,
168                                          sig);
169
170         return nt_status;
171 }
172
173 NTSTATUS gensec_ntlmssp_seal_packet(struct gensec_security *gensec_security,
174                                     TALLOC_CTX *sig_mem_ctx,
175                                     uint8_t *data, size_t length,
176                                     const uint8_t *whole_pdu, size_t pdu_length,
177                                     DATA_BLOB *sig)
178 {
179         struct gensec_ntlmssp_context *gensec_ntlmssp =
180                 talloc_get_type_abort(gensec_security->private_data,
181                                       struct gensec_ntlmssp_context);
182         NTSTATUS nt_status;
183
184         nt_status = ntlmssp_seal_packet(gensec_ntlmssp->ntlmssp_state,
185                                         sig_mem_ctx,
186                                         data, length,
187                                         whole_pdu, pdu_length,
188                                         sig);
189
190         return nt_status;
191 }
192
193 /*
194   wrappers for the ntlmssp_*() functions
195 */
196 NTSTATUS gensec_ntlmssp_unseal_packet(struct gensec_security *gensec_security,
197                                       uint8_t *data, size_t length,
198                                       const uint8_t *whole_pdu, size_t pdu_length,
199                                       const DATA_BLOB *sig)
200 {
201         struct gensec_ntlmssp_context *gensec_ntlmssp =
202                 talloc_get_type_abort(gensec_security->private_data,
203                                       struct gensec_ntlmssp_context);
204         NTSTATUS nt_status;
205
206         nt_status = ntlmssp_unseal_packet(gensec_ntlmssp->ntlmssp_state,
207                                           data, length,
208                                           whole_pdu, pdu_length,
209                                           sig);
210
211         return nt_status;
212 }
213
214 size_t gensec_ntlmssp_sig_size(struct gensec_security *gensec_security, size_t data_size)
215 {
216         return NTLMSSP_SIG_SIZE;
217 }
218
219 NTSTATUS gensec_ntlmssp_wrap(struct gensec_security *gensec_security,
220                              TALLOC_CTX *out_mem_ctx,
221                              const DATA_BLOB *in,
222                              DATA_BLOB *out)
223 {
224         struct gensec_ntlmssp_context *gensec_ntlmssp =
225                 talloc_get_type_abort(gensec_security->private_data,
226                                       struct gensec_ntlmssp_context);
227
228         return ntlmssp_wrap(gensec_ntlmssp->ntlmssp_state,
229                             out_mem_ctx,
230                             in, out);
231 }
232
233
234 NTSTATUS gensec_ntlmssp_unwrap(struct gensec_security *gensec_security,
235                                TALLOC_CTX *out_mem_ctx,
236                                const DATA_BLOB *in,
237                                DATA_BLOB *out)
238 {
239         struct gensec_ntlmssp_context *gensec_ntlmssp =
240                 talloc_get_type_abort(gensec_security->private_data,
241                                       struct gensec_ntlmssp_context);
242
243         return ntlmssp_unwrap(gensec_ntlmssp->ntlmssp_state,
244                               out_mem_ctx,
245                               in, out);
246 }