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
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.
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.
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/>.
29 /* NTLMSSP message types */
30 enum ntlmssp_message_type
32 NTLMSSP_INITIAL
= 0 /* samba internal state */,
33 NTLMSSP_NEGOTIATE
= 1,
34 NTLMSSP_CHALLENGE
= 2,
37 NTLMSSP_DONE
= 5 /* samba final state */
40 #define NTLMSSP_FEATURE_SESSION_KEY 0x00000001
41 #define NTLMSSP_FEATURE_SIGN 0x00000002
42 #define NTLMSSP_FEATURE_SEAL 0x00000004
43 #define NTLMSSP_FEATURE_CCACHE 0x00000008
47 enum ntlmssp_role role
;
48 enum server_types server_role
;
49 uint32_t expected_state
;
57 unsigned char *nt_hash
;
58 unsigned char *lm_hash
;
61 DATA_BLOB internal_chal
; /* Random challenge as supplied to the client for NTLM authentication */
63 DATA_BLOB chal
; /* Random challenge as input into the actual NTLM (or NTLM2) authentication */
66 DATA_BLOB session_key
;
68 uint32_t neg_flags
; /* the current state of negotiation with the NTLMSSP partner */
73 * Callback to get the 'challenge' used for NTLM authentication.
75 * @param ntlmssp_state This structure
76 * @return 8 bytes of challenge data, determined by the server to be the challenge for NTLM authentication
79 NTSTATUS (*get_challenge
)(const struct ntlmssp_state
*ntlmssp_state
,
80 uint8_t challenge
[8]);
83 * Callback to find if the challenge used by NTLM authentication may be modified
85 * The NTLM2 authentication scheme modifies the effective challenge, but this is not compatiable with the
86 * current 'security=server' implementation..
88 * @param ntlmssp_state This structure
89 * @return Can the challenge be set to arbitary values?
92 bool (*may_set_challenge
)(const struct ntlmssp_state
*ntlmssp_state
);
95 * Callback to set the 'challenge' used for NTLM authentication.
97 * The callback may use the void *auth_context to store state information, but the same value is always available
98 * from the DATA_BLOB chal on this structure.
100 * @param ntlmssp_state This structure
101 * @param challenge 8 bytes of data, agreed by the client and server to be the effective challenge for NTLM2 authentication
104 NTSTATUS (*set_challenge
)(struct ntlmssp_state
*ntlmssp_state
, DATA_BLOB
*challenge
);
107 * Callback to check the user's password.
109 * The callback must reads the feilds of this structure for the information it needs on the user
110 * @param ntlmssp_state This structure
111 * @param nt_session_key If an NT session key is returned by the authentication process, return it here
112 * @param lm_session_key If an LM session key is returned by the authentication process, return it here
115 NTSTATUS (*check_password
)(struct ntlmssp_state
*ntlmssp_state
, DATA_BLOB
*nt_session_key
, DATA_BLOB
*lm_session_key
);
117 const char *(*get_global_myname
)(void);
118 const char *(*get_domain
)(void);
122 unsigned char send_sign_key
[16];
123 unsigned char send_seal_key
[16];
124 unsigned char recv_sign_key
[16];
125 unsigned char recv_seal_key
[16];
127 struct arcfour_state send_seal_arc4_state
;
128 struct arcfour_state recv_seal_arc4_state
;
130 uint32_t ntlm2_send_seq_num
;
131 uint32_t ntlm2_recv_seq_num
;
134 struct arcfour_state ntlmv1_arc4_state
;
135 uint32_t ntlmv1_seq_num
;