source3/smbd/auth_builtin.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 3.0.
   4    Generic authenticaion types
   5    Copyright (C) Andrew Bartlett              2001
   6
   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 2 of the License, or
  10    (at your option) any later version.
  11
  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.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #include "includes.h"
  23
  24 /****************************************************************************
  25  Check for a guest logon (username = "") and if so create the required
  26  structure.
  27 ****************************************************************************/
  28
  29 static NTSTATUS check_guest_security(void *my_private_data,
  30                               const auth_usersupplied_info *user_info,
  31                               const auth_authsupplied_info *auth_info,
  32                               auth_serversupplied_info **server_info)
  33 {
  34         NTSTATUS nt_status = NT_STATUS_LOGON_FAILURE;
  35
  36         if (!(user_info->internal_username.str
  37               && *user_info->internal_username.str)) {
  38                 if (make_server_info_guest(server_info)) {
  39                         nt_status = NT_STATUS_OK;
  40                 } else {
  41                         nt_status = NT_STATUS_NO_SUCH_USER;
  42                 }
  43         }
  44
  45         return nt_status;
  46 }
  47
  48 BOOL auth_init_guest(auth_methods **auth_method)
  49 {
  50         if (!make_auth_methods(auth_method)) {
  51                 return False;
  52         }
  53
  54         (*auth_method)->auth = check_guest_security;
  55         return True;
  56 }
  57
  58 /****************************************************************************
  59  Check against either sam or unix, depending on encryption.
  60 ****************************************************************************/
  61
  62 static NTSTATUS check_local_security(void *my_private_data,
  63                               const auth_usersupplied_info *user_info,
  64                               const auth_authsupplied_info *auth_info,
  65                               auth_serversupplied_info **server_info)
  66 {
  67         NTSTATUS nt_status = NT_STATUS_LOGON_FAILURE;
  68
  69         if (user_info->encrypted) {
  70                 nt_status = check_sam_security(my_private_data, user_info, auth_info, server_info);
  71         } else {
  72                 nt_status = check_unix_security(my_private_data, user_info, auth_info, server_info);
  73         }
  74
  75         return nt_status;
  76 }
  77
  78 BOOL auth_init_local(auth_methods **auth_method)
  79 {
  80         if (!make_auth_methods(auth_method)) {
  81                 return False;
  82         }
  83
  84         (*auth_method)->auth = check_local_security;
  85         return True;
  86 }
  87
  88 /****************************************************************************
  89  Return an error based on username
  90 ****************************************************************************/
  91
  92 static NTSTATUS check_name_to_ntstatus_security(void *my_private_data,
  93                                                 const auth_usersupplied_info *user_info,
  94                                                 const auth_authsupplied_info *auth_info,
  95                                                 auth_serversupplied_info **server_info)
  96 {
  97         NTSTATUS nt_status;
  98         fstring user;
  99         long error_num;
 100         fstrcpy(user, user_info->smb_name.str);
 101         strlower(user);
 102         error_num = strtoul(user, NULL, 16);
 103
 104         DEBUG(5,("Error for user %s was %lx\n", user, error_num));
 105
 106         nt_status = NT_STATUS(error_num);
 107
 108         return nt_status;
 109 }
 110
 111 BOOL auth_init_name_to_ntstatus(auth_methods **auth_method)
 112 {
 113         if (!make_auth_methods(auth_method)) {
 114                 return False;
 115         }
 116
 117         (*auth_method)->auth = check_name_to_ntstatus_security;
 118         return True;
 119 }
 120