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
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
|
/*
Unix SMB/CIFS implementation.
Generic Authentication Interface
Copyright (C) Andrew Tridgell 2003
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005
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/>.
*/
#ifndef __GENSEC_H__
#define __GENSEC_H__
#include "../lib/util/data_blob.h"
#include "libcli/util/ntstatus.h"
#define GENSEC_SASL_NAME_NTLMSSP "NTLM"
#define GENSEC_OID_NTLMSSP "1.3.6.1.4.1.311.2.2.10"
#define GENSEC_OID_SPNEGO "1.3.6.1.5.5.2"
#define GENSEC_OID_KERBEROS5 "1.2.840.113554.1.2.2"
#define GENSEC_OID_KERBEROS5_OLD "1.2.840.48018.1.2.2"
#define GENSEC_OID_KERBEROS5_USER2USER "1.2.840.113554.1.2.2.3"
enum gensec_priority {
GENSEC_SPNEGO = 90,
GENSEC_GSSAPI = 80,
GENSEC_KRB5 = 70,
GENSEC_SCHANNEL = 60,
GENSEC_NTLMSSP = 50,
GENSEC_SASL = 20,
GENSEC_OTHER = 0
};
struct gensec_security;
struct gensec_target {
const char *principal;
const char *hostname;
const char *service;
};
#define GENSEC_FEATURE_SESSION_KEY 0x00000001
#define GENSEC_FEATURE_SIGN 0x00000002
#define GENSEC_FEATURE_SEAL 0x00000004
#define GENSEC_FEATURE_DCE_STYLE 0x00000008
#define GENSEC_FEATURE_ASYNC_REPLIES 0x00000010
#define GENSEC_FEATURE_DATAGRAM_MODE 0x00000020
#define GENSEC_FEATURE_SIGN_PKT_HEADER 0x00000040
#define GENSEC_FEATURE_NEW_SPNEGO 0x00000080
/* GENSEC mode */
enum gensec_role
{
GENSEC_SERVER,
GENSEC_CLIENT
};
struct auth_session_info;
struct cli_credentials;
struct gensec_settings;
struct tevent_context;
struct tevent_req;
struct gensec_settings {
struct loadparm_context *lp_ctx;
const char *target_hostname;
};
struct gensec_security_ops {
const char *name;
const char *sasl_name;
uint8_t auth_type; /* 0 if not offered on DCE-RPC */
const char **oid; /* NULL if not offered by SPNEGO */
NTSTATUS (*client_start)(struct gensec_security *gensec_security);
NTSTATUS (*server_start)(struct gensec_security *gensec_security);
/**
Determine if a packet has the right 'magic' for this mechanism
*/
NTSTATUS (*magic)(struct gensec_security *gensec_security,
const DATA_BLOB *first_packet);
NTSTATUS (*update)(struct gensec_security *gensec_security, TALLOC_CTX *out_mem_ctx,
const DATA_BLOB in, DATA_BLOB *out);
NTSTATUS (*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);
NTSTATUS (*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);
size_t (*sig_size)(struct gensec_security *gensec_security, size_t data_size);
size_t (*max_input_size)(struct gensec_security *gensec_security);
size_t (*max_wrapped_size)(struct gensec_security *gensec_security);
NTSTATUS (*check_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,
const DATA_BLOB *sig);
NTSTATUS (*unseal_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,
const DATA_BLOB *sig);
NTSTATUS (*wrap)(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out);
NTSTATUS (*unwrap)(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out);
NTSTATUS (*wrap_packets)(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out,
size_t *len_processed);
NTSTATUS (*unwrap_packets)(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out,
size_t *len_processed);
NTSTATUS (*packet_full_request)(struct gensec_security *gensec_security,
DATA_BLOB blob, size_t *size);
NTSTATUS (*session_key)(struct gensec_security *gensec_security, DATA_BLOB *session_key);
NTSTATUS (*session_info)(struct gensec_security *gensec_security,
struct auth_session_info **session_info);
void (*want_feature)(struct gensec_security *gensec_security,
uint32_t feature);
bool (*have_feature)(struct gensec_security *gensec_security,
uint32_t feature);
bool enabled;
bool kerberos;
enum gensec_priority priority;
};
struct gensec_security_ops_wrapper {
const struct gensec_security_ops *op;
const char *oid;
};
#define GENSEC_INTERFACE_VERSION 0
struct gensec_security {
const struct gensec_security_ops *ops;
void *private_data;
struct cli_credentials *credentials;
struct gensec_target target;
enum gensec_role gensec_role;
bool subcontext;
uint32_t want_features;
struct tevent_context *event_ctx;
struct tsocket_address *local_addr, *remote_addr;
struct gensec_settings *settings;
/* When we are a server, this may be filled in to provide an
* NTLM authentication backend, and user lookup (such as if no
* PAC is found) */
struct auth4_context *auth_context;
};
/* this structure is used by backends to determine the size of some critical types */
struct gensec_critical_sizes {
int interface_version;
int sizeof_gensec_security_ops;
int sizeof_gensec_security;
};
/* Socket wrapper */
struct gensec_security;
struct socket_context;
struct auth4_context;
struct auth_user_info_dc;
NTSTATUS gensec_socket_init(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
struct socket_context *current_socket,
struct tevent_context *ev,
void (*recv_handler)(void *, uint16_t),
void *recv_private,
struct socket_context **new_socket);
/* These functions are for use here only (public because SPNEGO must
* use them for recursion) */
NTSTATUS gensec_wrap_packets(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out,
size_t *len_processed);
/* These functions are for use here only (public because SPNEGO must
* use them for recursion) */
NTSTATUS gensec_unwrap_packets(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out,
size_t *len_processed);
/* These functions are for use here only (public because SPNEGO must
* use them for recursion) */
NTSTATUS gensec_packet_full_request(struct gensec_security *gensec_security,
DATA_BLOB blob, size_t *size);
struct loadparm_context;
NTSTATUS gensec_subcontext_start(TALLOC_CTX *mem_ctx,
struct gensec_security *parent,
struct gensec_security **gensec_security);
NTSTATUS gensec_client_start(TALLOC_CTX *mem_ctx,
struct gensec_security **gensec_security,
struct tevent_context *ev,
struct gensec_settings *settings);
NTSTATUS gensec_start_mech_by_sasl_list(struct gensec_security *gensec_security,
const char **sasl_names);
NTSTATUS gensec_update(struct gensec_security *gensec_security, TALLOC_CTX *out_mem_ctx,
const DATA_BLOB in, DATA_BLOB *out);
struct tevent_req *gensec_update_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct gensec_security *gensec_security,
const DATA_BLOB in);
NTSTATUS gensec_update_recv(struct tevent_req *req, TALLOC_CTX *out_mem_ctx, DATA_BLOB *out);
void gensec_want_feature(struct gensec_security *gensec_security,
uint32_t feature);
bool gensec_have_feature(struct gensec_security *gensec_security,
uint32_t feature);
NTSTATUS gensec_set_credentials(struct gensec_security *gensec_security, struct cli_credentials *credentials);
NTSTATUS gensec_set_target_service(struct gensec_security *gensec_security, const char *service);
const char *gensec_get_target_service(struct gensec_security *gensec_security);
NTSTATUS gensec_set_target_hostname(struct gensec_security *gensec_security, const char *hostname);
const char *gensec_get_target_hostname(struct gensec_security *gensec_security);
NTSTATUS gensec_session_key(struct gensec_security *gensec_security,
DATA_BLOB *session_key);
NTSTATUS gensec_start_mech_by_oid(struct gensec_security *gensec_security,
const char *mech_oid);
const char *gensec_get_name_by_oid(struct gensec_security *gensec_security, const char *oid_string);
struct cli_credentials *gensec_get_credentials(struct gensec_security *gensec_security);
NTSTATUS gensec_init(void);
NTSTATUS gensec_unseal_packet(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
const DATA_BLOB *sig);
NTSTATUS gensec_check_packet(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
const DATA_BLOB *sig);
size_t gensec_sig_size(struct gensec_security *gensec_security, size_t data_size);
NTSTATUS gensec_seal_packet(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
DATA_BLOB *sig);
NTSTATUS gensec_sign_packet(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
DATA_BLOB *sig);
NTSTATUS gensec_start_mech_by_authtype(struct gensec_security *gensec_security,
uint8_t auth_type, uint8_t auth_level);
const char *gensec_get_name_by_authtype(struct gensec_security *gensec_security, uint8_t authtype);
NTSTATUS gensec_server_start(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct gensec_settings *settings,
struct auth4_context *auth_context,
struct gensec_security **gensec_security);
NTSTATUS gensec_session_info(struct gensec_security *gensec_security,
struct auth_session_info **session_info);
struct netlogon_creds_CredentialState;
NTSTATUS dcerpc_schannel_creds(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
struct netlogon_creds_CredentialState **creds);
NTSTATUS gensec_set_local_address(struct gensec_security *gensec_security,
const struct tsocket_address *local);
NTSTATUS gensec_set_remote_address(struct gensec_security *gensec_security,
const struct tsocket_address *remote);
const struct tsocket_address *gensec_get_local_address(struct gensec_security *gensec_security);
const struct tsocket_address *gensec_get_remote_address(struct gensec_security *gensec_security);
NTSTATUS gensec_start_mech_by_name(struct gensec_security *gensec_security,
const char *name);
NTSTATUS gensec_unwrap(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out);
NTSTATUS gensec_wrap(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out);
struct gensec_security_ops **gensec_security_all(void);
bool gensec_security_ops_enabled(struct gensec_security_ops *ops, struct gensec_security *security);
struct gensec_security_ops **gensec_use_kerberos_mechs(TALLOC_CTX *mem_ctx,
struct gensec_security_ops **old_gensec_list,
struct cli_credentials *creds);
NTSTATUS gensec_start_mech_by_sasl_name(struct gensec_security *gensec_security,
const char *sasl_name);
int gensec_setting_int(struct gensec_settings *settings, const char *mechanism, const char *name, int default_value);
bool gensec_setting_bool(struct gensec_settings *settings, const char *mechanism, const char *name, bool default_value);
NTSTATUS gensec_set_target_principal(struct gensec_security *gensec_security, const char *principal);
#endif /* __GENSEC_H__ */
|
