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
|
/*
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_INTERNAL_H__
#define __GENSEC_INTERNAL_H__
struct gensec_security;
struct gensec_security_ops {
const char *name;
const char *sasl_name;
bool weak_crypto;
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);
struct tevent_req *(*update_send)(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct gensec_security *gensec_security,
const DATA_BLOB in);
NTSTATUS (*update_recv)(struct tevent_req *req,
TALLOC_CTX *out_mem_ctx,
DATA_BLOB *out);
NTSTATUS (*may_reset_crypto)(struct gensec_security *gensec_security,
bool full_reset);
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,
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,
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 (*session_key)(struct gensec_security *gensec_security, TALLOC_CTX *mem_ctx,
DATA_BLOB *session_key);
NTSTATUS (*session_info)(struct gensec_security *gensec_security, TALLOC_CTX *mem_ctx,
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);
NTTIME (*expire_time)(struct gensec_security *gensec_security);
const char *(*final_auth_type)(struct gensec_security *gensec_security);
bool enabled;
bool kerberos;
enum gensec_priority priority;
bool glue;
};
struct gensec_security_ops_wrapper {
const struct gensec_security_ops *op;
const char *oid;
};
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;
uint32_t max_update_size;
uint8_t dcerpc_auth_level;
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;
struct gensec_security *parent_security;
struct gensec_security *child_security;
/*
* This is used to mark the context as being
* busy in an async gensec_update_send().
*/
struct gensec_security **update_busy_ptr;
};
/* 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;
};
NTSTATUS gensec_may_reset_crypto(struct gensec_security *gensec_security,
bool full_reset);
const char *gensec_final_auth_type(struct gensec_security *gensec_security);
NTSTATUS gensec_child_ready(struct gensec_security *parent,
struct gensec_security *child);
void gensec_child_want_feature(struct gensec_security *gensec_security,
uint32_t feature);
bool gensec_child_have_feature(struct gensec_security *gensec_security,
uint32_t feature);
NTSTATUS gensec_child_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);
NTSTATUS gensec_child_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);
NTSTATUS gensec_child_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_child_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_child_wrap(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out);
NTSTATUS gensec_child_unwrap(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out);
size_t gensec_child_sig_size(struct gensec_security *gensec_security,
size_t data_size);
size_t gensec_child_max_input_size(struct gensec_security *gensec_security);
size_t gensec_child_max_wrapped_size(struct gensec_security *gensec_security);
NTSTATUS gensec_child_session_key(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
DATA_BLOB *session_key);
NTSTATUS gensec_child_session_info(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
struct auth_session_info **session_info);
NTTIME gensec_child_expire_time(struct gensec_security *gensec_security);
const char *gensec_child_final_auth_type(struct gensec_security *gensec_security);
#endif /* __GENSEC_H__ */
|
