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/>.
21 #include "../librpc/gen_ndr/samr.h"
24 #define DBGC_CLASS DBGC_AUTH
27 * update the encrypted smbpasswd file from the plaintext username and password
29 * this ugly hack needs to die, but not quite yet, I think people still use it...
31 static bool update_smbpassword_file(const char *user, const char *password)
36 if ( !(sampass = samu_new( NULL )) ) {
41 ret = pdb_getsampwnam(sampass, user);
45 DEBUG(0,("pdb_getsampwnam returned NULL\n"));
51 * Remove the account disabled flag - we are updating the
52 * users password from a login.
54 if (!pdb_set_acct_ctrl(sampass, pdb_get_acct_ctrl(sampass) & ~ACB_DISABLED, PDB_CHANGED)) {
59 if (!pdb_set_plaintext_passwd (sampass, password)) {
64 /* Now write it into the file. */
67 ret = NT_STATUS_IS_OK(pdb_update_sam_account (sampass));
72 DEBUG(3,("pdb_update_sam_account returned %d\n",ret));
80 /** Check a plaintext username/password
82 * Cannot deal with an encrupted password in any manner whatsoever,
83 * unless the account has a null password.
86 static NTSTATUS check_unix_security(const struct auth_context *auth_context,
87 void *my_private_data,
89 const struct auth_usersupplied_info *user_info,
90 struct auth_serversupplied_info **server_info)
93 struct passwd *pass = NULL;
95 DEBUG(10, ("Check auth for: [%s]\n", user_info->mapped.account_name));
98 pass = Get_Pwnam_alloc(talloc_tos(), user_info->mapped.account_name);
100 /** @todo This call assumes a ASCII password, no charset transformation is
101 done. We may need to revisit this **/
102 nt_status = pass_check(pass,
103 pass ? pass->pw_name : user_info->mapped.account_name,
104 user_info->password.plaintext,
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);