source4/auth/ntlm/auth_anonymous.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Anonymous Authentification
   5
   6    Copyright (C) Stefan Metzmacher            2004-2005
   7
   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.
  12
  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.
  17
  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/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "auth/auth.h"
  24 #include "auth/ntlm/auth_proto.h"
  25 #include "param/param.h"
  26
  27 _PUBLIC_ NTSTATUS auth4_anonymous_init(void);
  28
  29 /**
  30  * Return a anonymous logon for anonymous users (username = "")
  31  *
  32  * Typically used as the first module in the auth chain, this allows
  33  * anonymou logons to be dealt with in one place.  Non-anonymou logons 'fail'
  34  * and pass onto the next module.
  35  **/
  36 static NTSTATUS anonymous_want_check(struct auth_method_context *ctx,
  37                                      TALLOC_CTX *mem_ctx,
  38                                      const struct auth_usersupplied_info *user_info)
  39 {
  40         if (user_info->client.account_name && *user_info->client.account_name) {
  41                 return NT_STATUS_NOT_IMPLEMENTED;
  42         }
  43
  44         return NT_STATUS_OK;
  45 }
  46
  47 /**
  48  * Return a anonymous logon for anonymous users (username = "")
  49  *
  50  * Typically used as the first module in the auth chain, this allows
  51  * anonymou logons to be dealt with in one place.  Non-anonymou logons 'fail'
  52  * and pass onto the next module.
  53  **/
  54 static NTSTATUS anonymous_check_password(struct auth_method_context *ctx,
  55                                          TALLOC_CTX *mem_ctx,
  56                                          const struct auth_usersupplied_info *user_info,
  57                                          struct auth_user_info_dc **_user_info_dc)
  58 {
  59         return auth_anonymous_user_info_dc(mem_ctx, lpcfg_netbios_name(ctx->auth_ctx->lp_ctx), _user_info_dc);
  60 }
  61
  62 static const struct auth_operations anonymous_auth_ops = {
  63         .name           = "anonymous",
  64         .want_check     = anonymous_want_check,
  65         .check_password = anonymous_check_password
  66 };
  67
  68 _PUBLIC_ NTSTATUS auth4_anonymous_init(void)
  69 {
  70         NTSTATUS ret;
  71
  72         ret = auth_register(&anonymous_auth_ops);
  73         if (!NT_STATUS_IS_OK(ret)) {
  74                 DEBUG(0,("Failed to register 'anonymous' auth backend!\n"));
  75                 return ret;
  76         }
  77
  78         return ret;
  79 }