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
46 enum ntlmssp_role role;
47 enum server_types server_role;
48 uint32_t expected_state;
55 unsigned char *nt_hash;
56 unsigned char *lm_hash;
59 DATA_BLOB internal_chal; /* Random challenge as supplied to the client for NTLM authentication */
61 DATA_BLOB chal; /* Random challenge as input into the actual NTLM (or NTLM2) authentication */
64 DATA_BLOB session_key;
66 uint32_t neg_flags; /* the current state of negotiation with the NTLMSSP partner */
71 * Callback to get the 'challenge' used for NTLM authentication.
73 * @param ntlmssp_state This structure
74 * @return 8 bytes of challenge data, determined by the server to be the challenge for NTLM authentication
77 NTSTATUS (*get_challenge)(const struct ntlmssp_state *ntlmssp_state,
78 uint8_t challenge[8]);
81 * Callback to find if the challenge used by NTLM authentication may be modified
83 * The NTLM2 authentication scheme modifies the effective challenge, but this is not compatiable with the
84 * current 'security=server' implementation..
86 * @param ntlmssp_state This structure
87 * @return Can the challenge be set to arbitary values?
90 bool (*may_set_challenge)(const struct ntlmssp_state *ntlmssp_state);
93 * Callback to set the 'challenge' used for NTLM authentication.
95 * The callback may use the void *auth_context to store state information, but the same value is always available
96 * from the DATA_BLOB chal on this structure.
98 * @param ntlmssp_state This structure
99 * @param challenge 8 bytes of data, agreed by the client and server to be the effective challenge for NTLM2 authentication
102 NTSTATUS (*set_challenge)(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *challenge);
105 * Callback to check the user's password.
107 * The callback must reads the feilds of this structure for the information it needs on the user
108 * @param ntlmssp_state This structure
109 * @param nt_session_key If an NT session key is returned by the authentication process, return it here
110 * @param lm_session_key If an LM session key is returned by the authentication process, return it here
113 NTSTATUS (*check_password)(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *nt_session_key, DATA_BLOB *lm_session_key);
115 const char *(*get_global_myname)(void);
116 const char *(*get_domain)(void);
120 unsigned char send_sign_key[16];
121 unsigned char send_seal_key[16];
122 unsigned char recv_sign_key[16];
123 unsigned char recv_seal_key[16];
125 struct arcfour_state send_seal_arc4_state;
126 struct arcfour_state recv_seal_arc4_state;
128 uint32_t ntlm2_send_seq_num;
129 uint32_t ntlm2_recv_seq_num;
132 struct arcfour_state ntlmv1_arc4_state;
133 uint32_t ntlmv1_seq_num;