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/>.
22 #include "librpc/gen_ndr/samr.h"
23 #include "../librpc/gen_ndr/ntlmssp.h"
32 /* NTLMSSP message types */
33 enum ntlmssp_message_type
35 NTLMSSP_INITIAL = 0 /* samba internal state */,
36 NTLMSSP_NEGOTIATE = 1,
37 NTLMSSP_CHALLENGE = 2,
40 NTLMSSP_DONE = 5 /* samba final state */
43 struct gensec_ntlmssp_state
45 struct gensec_security *gensec_security;
47 enum ntlmssp_role role;
48 enum samr_Role server_role;
49 uint32_t expected_state;
53 bool use_nt_response; /* Set to 'False' to debug what happens when the NT response is omited */
54 bool allow_lm_key; /* The LM_KEY code is not functional at this point, and it's not
57 bool server_multiple_authentications; /* Set to 'True' to allow squid 2.5
58 style 'challenge caching' */
62 const char *workstation;
65 DATA_BLOB internal_chal; /* Random challenge as supplied to the client for NTLM authentication */
67 DATA_BLOB chal; /* Random challenge as input into the actual NTLM (or NTLM2) authentication */
70 DATA_BLOB session_key;
72 uint32_t neg_flags; /* the current state of negotiation with the NTLMSSP partner */
74 /* internal variables used by KEY_EXCH (client-supplied user session key */
75 DATA_BLOB encrypted_session_key;
78 * Callback to get the 'challenge' used for NTLM authentication.
80 * @param ntlmssp_state This structure
81 * @return 8 bytes of challenge data, determined by the server to be the challenge for NTLM authentication
84 const uint8_t *(*get_challenge)(const struct gensec_ntlmssp_state *);
87 * Callback to find if the challenge used by NTLM authentication may be modified
89 * The NTLM2 authentication scheme modifies the effective challenge, but this is not compatiable with the
90 * current 'security=server' implementation..
92 * @param ntlmssp_state This structure
93 * @return Can the challenge be set to arbitary values?
96 bool (*may_set_challenge)(const struct gensec_ntlmssp_state *);
99 * Callback to set the 'challenge' used for NTLM authentication.
101 * The callback may use the void *auth_context to store state information, but the same value is always available
102 * from the DATA_BLOB chal on this structure.
104 * @param ntlmssp_state This structure
105 * @param challenge 8 bytes of data, agreed by the client and server to be the effective challenge for NTLM2 authentication
108 NTSTATUS (*set_challenge)(struct gensec_ntlmssp_state *, DATA_BLOB *challenge);
111 * Callback to check the user's password.
113 * The callback must reads the feilds of this structure for the information it needs on the user
114 * @param ntlmssp_state This structure
115 * @param nt_session_key If an NT session key is returned by the authentication process, return it here
116 * @param lm_session_key If an LM session key is returned by the authentication process, return it here
119 NTSTATUS (*check_password)(struct gensec_ntlmssp_state *,
121 DATA_BLOB *nt_session_key, DATA_BLOB *lm_session_key);
123 const char *server_name;
131 struct arcfour_state *arcfour_state;
136 uint32_t send_seq_num;
137 uint32_t recv_seq_num;
138 DATA_BLOB send_sign_key;
139 DATA_BLOB recv_sign_key;
140 struct arcfour_state *send_seal_arcfour_state;
141 struct arcfour_state *recv_seal_arcfour_state;
143 /* internal variables used by NTLM2 */
144 uint8_t session_nonce[16];
148 struct auth_context *auth_context;
149 struct auth_serversupplied_info *server_info;
152 struct loadparm_context;
153 struct auth_session_info;
155 #include "auth/ntlmssp/proto.h"