source: branches/samba-3.3.x/source/include/ntlmssp.h

Last change on this file was 206, checked in by Herwig Bauernfeind, 16 years ago

Import Samba 3.3 branch at 3.0.0 level (psmedley's port)
File size: 5.9 KB
RevLine 
[206]1/*
2 Unix SMB/CIFS implementation.
3 SMB parameters and setup
4 Copyright (C) Andrew Tridgell 1992-1997
5 Copyright (C) Luke Kenneth Casson Leighton 1996-1997
6 Copyright (C) Paul Ashton 1997
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/* NTLMSSP mode */
23enum NTLMSSP_ROLE
24{
25 NTLMSSP_SERVER,
26 NTLMSSP_CLIENT
27};
28
29/* NTLMSSP message types */
30enum NTLM_MESSAGE_TYPE
31{
32 NTLMSSP_INITIAL = 0 /* samba internal state */,
33 NTLMSSP_NEGOTIATE = 1,
34 NTLMSSP_CHALLENGE = 2,
35 NTLMSSP_AUTH = 3,
36 NTLMSSP_UNKNOWN = 4,
37 NTLMSSP_DONE = 5 /* samba final state */
38};
39
40/* NTLMSSP negotiation flags */
41#define NTLMSSP_NEGOTIATE_UNICODE 0x00000001
42#define NTLMSSP_NEGOTIATE_OEM 0x00000002
43#define NTLMSSP_REQUEST_TARGET 0x00000004
44#define NTLMSSP_NEGOTIATE_SIGN 0x00000010 /* Message integrity */
45#define NTLMSSP_NEGOTIATE_SEAL 0x00000020 /* Message confidentiality */
46#define NTLMSSP_NEGOTIATE_DATAGRAM_STYLE 0x00000040
47#define NTLMSSP_NEGOTIATE_LM_KEY 0x00000080
48#define NTLMSSP_NEGOTIATE_NETWARE 0x00000100
49#define NTLMSSP_NEGOTIATE_NTLM 0x00000200
50#define NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED 0x00001000
51#define NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED 0x00002000
52#define NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL 0x00004000
53#define NTLMSSP_NEGOTIATE_ALWAYS_SIGN 0x00008000
54#define NTLMSSP_TARGET_TYPE_DOMAIN 0x10000
55#define NTLMSSP_TARGET_TYPE_SERVER 0x20000
56#define NTLMSSP_CHAL_INIT_RESPONSE 0x00010000
57
58#define NTLMSSP_CHAL_ACCEPT_RESPONSE 0x00020000
59#define NTLMSSP_CHAL_NON_NT_SESSION_KEY 0x00040000
60#define NTLMSSP_NEGOTIATE_NTLM2 0x00080000
61#define NTLMSSP_CHAL_TARGET_INFO 0x00800000
62#define NTLMSSP_NEGOTIATE_VERSION 0x02000000
63#define NTLMSSP_NEGOTIATE_128 0x20000000 /* 128-bit encryption */
64#define NTLMSSP_NEGOTIATE_KEY_EXCH 0x40000000
65#define NTLMSSP_NEGOTIATE_56 0x80000000
66
67#define NTLMSSP_FEATURE_SESSION_KEY 0x00000001
68#define NTLMSSP_FEATURE_SIGN 0x00000002
69#define NTLMSSP_FEATURE_SEAL 0x00000004
70
71#define NTLMSSP_NAME_TYPE_SERVER 0x01
72#define NTLMSSP_NAME_TYPE_DOMAIN 0x02
73#define NTLMSSP_NAME_TYPE_SERVER_DNS 0x03
74#define NTLMSSP_NAME_TYPE_DOMAIN_DNS 0x04
75
76#define NTLMSSP_SIG_SIZE 16
77
78typedef struct ntlmssp_state
79{
80 TALLOC_CTX *mem_ctx;
81 unsigned int ref_count;
82 enum NTLMSSP_ROLE role;
83 enum server_types server_role;
84 uint32 expected_state;
85
86 bool unicode;
87 bool use_ntlmv2;
88 char *user;
89 char *domain;
90 char *workstation;
91 unsigned char *nt_hash;
92 unsigned char *lm_hash;
93 char *server_domain;
94
95 DATA_BLOB internal_chal; /* Random challenge as supplied to the client for NTLM authentication */
96
97 DATA_BLOB chal; /* Random challenge as input into the actual NTLM (or NTLM2) authentication */
98 DATA_BLOB lm_resp;
99 DATA_BLOB nt_resp;
100 DATA_BLOB session_key;
101
102 uint32 neg_flags; /* the current state of negotiation with the NTLMSSP partner */
103
104 void *auth_context;
105
106 /**
107 * Callback to get the 'challenge' used for NTLM authentication.
108 *
109 * @param ntlmssp_state This structure
110 * @return 8 bytes of challnege data, determined by the server to be the challenge for NTLM authentication
111 *
112 */
113 const uint8 *(*get_challenge)(const struct ntlmssp_state *ntlmssp_state);
114
115 /**
116 * Callback to find if the challenge used by NTLM authentication may be modified
117 *
118 * The NTLM2 authentication scheme modifies the effective challenge, but this is not compatiable with the
119 * current 'security=server' implementation..
120 *
121 * @param ntlmssp_state This structure
122 * @return Can the challenge be set to arbitary values?
123 *
124 */
125 bool (*may_set_challenge)(const struct ntlmssp_state *ntlmssp_state);
126
127 /**
128 * Callback to set the 'challenge' used for NTLM authentication.
129 *
130 * The callback may use the void *auth_context to store state information, but the same value is always available
131 * from the DATA_BLOB chal on this structure.
132 *
133 * @param ntlmssp_state This structure
134 * @param challenge 8 bytes of data, agreed by the client and server to be the effective challenge for NTLM2 authentication
135 *
136 */
137 NTSTATUS (*set_challenge)(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *challenge);
138
139 /**
140 * Callback to check the user's password.
141 *
142 * The callback must reads the feilds of this structure for the information it needs on the user
143 * @param ntlmssp_state This structure
144 * @param nt_session_key If an NT session key is returned by the authentication process, return it here
145 * @param lm_session_key If an LM session key is returned by the authentication process, return it here
146 *
147 */
148 NTSTATUS (*check_password)(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *nt_session_key, DATA_BLOB *lm_session_key);
149
150 const char *(*get_global_myname)(void);
151 const char *(*get_domain)(void);
152
153 /* ntlmv2 */
154
155 unsigned char send_sign_key[16];
156 unsigned char send_seal_key[16];
157 unsigned char recv_sign_key[16];
158 unsigned char recv_seal_key[16];
159
160 unsigned char send_seal_arc4_state[258];
161 unsigned char recv_seal_arc4_state[258];
162
163 uint32 ntlm2_send_seq_num;
164 uint32 ntlm2_recv_seq_num;
165
166 /* ntlmv1 */
167 unsigned char ntlmv1_arc4_state[258];
168 uint32 ntlmv1_seq_num;
169
170 /* it turns out that we don't always get the
171 response in at the time we want to process it.
172 Store it here, until we need it */
173 DATA_BLOB stored_response;
174
175} NTLMSSP_STATE;
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