2 Unix SMB/CIFS implementation.
3 Password and authentication handling
4 Copyright (C) Andrew Bartlett 2001
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #define DBGC_CLASS DBGC_AUTH
26 * update the encrypted smbpasswd file from the plaintext username and password
28 * this ugly hack needs to die, but not quite yet, I think people still use it...
30 static bool update_smbpassword_file(const char *user
, const char *password
)
35 if ( !(sampass
= samu_new( NULL
)) ) {
40 ret
= pdb_getsampwnam(sampass
, user
);
44 DEBUG(0,("pdb_getsampwnam returned NULL\n"));
50 * Remove the account disabled flag - we are updating the
51 * users password from a login.
53 if (!pdb_set_acct_ctrl(sampass
, pdb_get_acct_ctrl(sampass
) & ~ACB_DISABLED
, PDB_CHANGED
)) {
58 if (!pdb_set_plaintext_passwd (sampass
, password
)) {
63 /* Now write it into the file. */
66 ret
= NT_STATUS_IS_OK(pdb_update_sam_account (sampass
));
71 DEBUG(3,("pdb_update_sam_account returned %d\n",ret
));
79 /** Check a plaintext username/password
81 * Cannot deal with an encrupted password in any manner whatsoever,
82 * unless the account has a null password.
85 static NTSTATUS
check_unix_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
)
92 struct passwd
*pass
= NULL
;
94 DEBUG(10, ("Check auth for: [%s]\n", user_info
->mapped
.account_name
));
97 pass
= Get_Pwnam_alloc(talloc_tos(), user_info
->mapped
.account_name
);
99 /** @todo This call assumes a ASCII password, no charset transformation is
100 done. We may need to revisit this **/
101 nt_status
= pass_check(pass
,
102 pass
? pass
->pw_name
: user_info
->mapped
.account_name
,
103 (char *)user_info
->plaintext_password
.data
,
104 user_info
->plaintext_password
.length
-1,
105 lp_update_encrypted() ?
106 update_smbpassword_file
: NULL
,
111 if (NT_STATUS_IS_OK(nt_status
)) {
113 /* if a real user check pam account restrictions */
114 /* only really perfomed if "obey pam restriction" is true */
115 nt_status
= smb_pam_accountcheck(pass
->pw_name
);
116 if ( !NT_STATUS_IS_OK(nt_status
)) {
117 DEBUG(1, ("PAM account restriction prevents user login\n"));
119 make_server_info_pw(server_info
, pass
->pw_name
, pass
);
122 /* we need to do somthing more useful here */
123 nt_status
= NT_STATUS_NO_SUCH_USER
;
131 /* module initialisation */
132 static NTSTATUS
auth_init_unix(struct auth_context
*auth_context
, const char* param
, auth_methods
**auth_method
)
134 struct auth_methods
*result
;
136 result
= TALLOC_ZERO_P(auth_context
, struct auth_methods
);
137 if (result
== NULL
) {
138 return NT_STATUS_NO_MEMORY
;
140 result
->name
= "unix";
141 result
->auth
= check_unix_security
;
143 *auth_method
= result
;
147 NTSTATUS
auth_unix_init(void)
149 return smb_register_auth(AUTH_INTERFACE_VERSION
, "unix", auth_init_unix
);