source: trunk/server/source3/include/ntlmssp.h@ 622

Last change on this file since 622 was 414, checked in by Herwig Bauernfeind, 16 years ago

Samba 3.5.0: Initial import
File size: 4.4 KB
Line 
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#define NTLMSSP_FEATURE_SESSION_KEY 0x00000001
41#define NTLMSSP_FEATURE_SIGN 0x00000002
42#define NTLMSSP_FEATURE_SEAL 0x00000004
43#define NTLMSSP_FEATURE_CCACHE 0x00000008
44
45typedef struct ntlmssp_state
46{
47 unsigned int ref_count;
48 enum NTLMSSP_ROLE role;
49 enum server_types server_role;
50 uint32 expected_state;
51
52 bool unicode;
53 bool use_ntlmv2;
54 bool use_ccache;
55 char *user;
56 char *domain;
57 char *workstation;
58 unsigned char *nt_hash;
59 unsigned char *lm_hash;
60 char *server_domain;
61
62 DATA_BLOB internal_chal; /* Random challenge as supplied to the client for NTLM authentication */
63
64 DATA_BLOB chal; /* Random challenge as input into the actual NTLM (or NTLM2) authentication */
65 DATA_BLOB lm_resp;
66 DATA_BLOB nt_resp;
67 DATA_BLOB session_key;
68
69 uint32 neg_flags; /* the current state of negotiation with the NTLMSSP partner */
70
71 void *auth_context;
72
73 /**
74 * Callback to get the 'challenge' used for NTLM authentication.
75 *
76 * @param ntlmssp_state This structure
77 * @return 8 bytes of challnege data, determined by the server to be the challenge for NTLM authentication
78 *
79 */
80 void (*get_challenge)(const struct ntlmssp_state *ntlmssp_state,
81 uint8_t challenge[8]);
82
83 /**
84 * Callback to find if the challenge used by NTLM authentication may be modified
85 *
86 * The NTLM2 authentication scheme modifies the effective challenge, but this is not compatiable with the
87 * current 'security=server' implementation..
88 *
89 * @param ntlmssp_state This structure
90 * @return Can the challenge be set to arbitary values?
91 *
92 */
93 bool (*may_set_challenge)(const struct ntlmssp_state *ntlmssp_state);
94
95 /**
96 * Callback to set the 'challenge' used for NTLM authentication.
97 *
98 * The callback may use the void *auth_context to store state information, but the same value is always available
99 * from the DATA_BLOB chal on this structure.
100 *
101 * @param ntlmssp_state This structure
102 * @param challenge 8 bytes of data, agreed by the client and server to be the effective challenge for NTLM2 authentication
103 *
104 */
105 NTSTATUS (*set_challenge)(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *challenge);
106
107 /**
108 * Callback to check the user's password.
109 *
110 * The callback must reads the feilds of this structure for the information it needs on the user
111 * @param ntlmssp_state This structure
112 * @param nt_session_key If an NT session key is returned by the authentication process, return it here
113 * @param lm_session_key If an LM session key is returned by the authentication process, return it here
114 *
115 */
116 NTSTATUS (*check_password)(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *nt_session_key, DATA_BLOB *lm_session_key);
117
118 const char *(*get_global_myname)(void);
119 const char *(*get_domain)(void);
120
121 /* ntlmv2 */
122
123 unsigned char send_sign_key[16];
124 unsigned char send_seal_key[16];
125 unsigned char recv_sign_key[16];
126 unsigned char recv_seal_key[16];
127
128 struct arcfour_state send_seal_arc4_state;
129 struct arcfour_state recv_seal_arc4_state;
130
131 uint32 ntlm2_send_seq_num;
132 uint32 ntlm2_recv_seq_num;
133
134 /* ntlmv1 */
135 struct arcfour_state ntlmv1_arc4_state;
136 uint32 ntlmv1_seq_num;
137
138 /* it turns out that we don't always get the
139 response in at the time we want to process it.
140 Store it here, until we need it */
141 DATA_BLOB stored_response;
142} NTLMSSP_STATE;
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