2 Unix SMB/CIFS implementation.
3 Generic authentication types
4 Copyright (C) Andrew Bartlett 2001-2002
5 Copyright (C) Jelmer Vernooij 2002
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #define DBGC_CLASS DBGC_AUTH
28 * Return a guest logon for guest users (username = "")
30 * Typically used as the first module in the auth chain, this allows
31 * guest logons to be dealt with in one place. Non-guest logons 'fail'
32 * and pass onto the next module.
35 static NTSTATUS
check_guest_security(const struct auth_context
*auth_context
,
36 void *my_private_data
,
38 const struct auth_usersupplied_info
*user_info
,
39 struct auth_serversupplied_info
**server_info
)
41 /* mark this as 'not for me' */
42 NTSTATUS nt_status
= NT_STATUS_NOT_IMPLEMENTED
;
44 DEBUG(10, ("Check auth for: [%s]\n", user_info
->mapped
.account_name
));
46 if (!(user_info
->mapped
.account_name
47 && *user_info
->mapped
.account_name
)) {
48 nt_status
= make_server_info_guest(NULL
, server_info
);
54 /* Guest modules initialisation */
56 static NTSTATUS
auth_init_guest(struct auth_context
*auth_context
, const char *options
, auth_methods
**auth_method
)
58 struct auth_methods
*result
;
60 result
= talloc_zero(auth_context
, struct auth_methods
);
62 return NT_STATUS_NO_MEMORY
;
64 result
->auth
= check_guest_security
;
65 result
->name
= "guest";
67 *auth_method
= result
;
73 * Return an error based on username
75 * This function allows the testing of obsure errors, as well as the generation
76 * of NT_STATUS -> DOS error mapping tables.
78 * This module is of no value to end-users.
80 * The password is ignored.
82 * @return An NTSTATUS value based on the username
85 static NTSTATUS
check_name_to_ntstatus_security(const struct auth_context
*auth_context
,
86 void *my_private_data
,
88 const struct auth_usersupplied_info
*user_info
,
89 struct auth_serversupplied_info
**server_info
)
95 DEBUG(10, ("Check auth for: [%s]\n", user_info
->mapped
.account_name
));
97 fstrcpy(user
, user_info
->client
.account_name
);
99 if (strnequal("NT_STATUS", user
, strlen("NT_STATUS"))) {
101 return nt_status_string_to_code(user
);
105 error_num
= strtoul(user
, NULL
, 16);
107 DEBUG(5,("check_name_to_ntstatus_security: Error for user %s was %lx\n", user
, error_num
));
109 nt_status
= NT_STATUS(error_num
);
114 /** Module initialisation function */
116 static NTSTATUS
auth_init_name_to_ntstatus(struct auth_context
*auth_context
, const char *param
, auth_methods
**auth_method
)
118 struct auth_methods
*result
;
120 result
= talloc_zero(auth_context
, struct auth_methods
);
121 if (result
== NULL
) {
122 return NT_STATUS_NO_MEMORY
;
124 result
->auth
= check_name_to_ntstatus_security
;
125 result
->name
= "name_to_ntstatus";
127 *auth_method
= result
;
132 * Return a 'fixed' challenge instead of a variable one.
134 * The idea of this function is to make packet snifs consistant
135 * with a fixed challenge, so as to aid debugging.
137 * This module is of no value to end-users.
139 * This module does not actually authenticate the user, but
140 * just pretenteds to need a specified challenge.
141 * This module removes *all* security from the challenge-response system
143 * @return NT_STATUS_UNSUCCESSFUL
146 static NTSTATUS
check_fixed_challenge_security(const struct auth_context
*auth_context
,
147 void *my_private_data
,
149 const struct auth_usersupplied_info
*user_info
,
150 struct auth_serversupplied_info
**server_info
)
152 return NT_STATUS_NOT_IMPLEMENTED
;
155 /****************************************************************************
156 Get the challenge out of a password server.
157 ****************************************************************************/
159 static DATA_BLOB
auth_get_fixed_challenge(const struct auth_context
*auth_context
,
160 void **my_private_data
,
163 const char *challenge
= "I am a teapot";
164 return data_blob(challenge
, 8);
168 /** Module initialisation function */
170 static NTSTATUS
auth_init_fixed_challenge(struct auth_context
*auth_context
, const char *param
, auth_methods
**auth_method
)
172 struct auth_methods
*result
;
174 result
= talloc_zero(auth_context
, struct auth_methods
);
175 if (result
== NULL
) {
176 return NT_STATUS_NO_MEMORY
;
178 result
->auth
= check_fixed_challenge_security
;
179 result
->get_chal
= auth_get_fixed_challenge
;
180 result
->name
= "fixed_challenge";
182 *auth_method
= result
;
185 #endif /* DEVELOPER */
187 NTSTATUS
auth_builtin_init(void)
189 smb_register_auth(AUTH_INTERFACE_VERSION
, "guest", auth_init_guest
);
191 smb_register_auth(AUTH_INTERFACE_VERSION
, "fixed_challenge", auth_init_fixed_challenge
);
192 smb_register_auth(AUTH_INTERFACE_VERSION
, "name_to_ntstatus", auth_init_name_to_ntstatus
);