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 /**
  28  * Return a anonymous logon for anonymous users (username = "")
  29  *
  30  * Typically used as the first module in the auth chain, this allows
  31  * anonymou logons to be dealt with in one place.  Non-anonymou logons 'fail'
  32  * and pass onto the next module.
  33  **/
  34 static NTSTATUS anonymous_want_check(struct auth_method_context *ctx,
  35                                      TALLOC_CTX *mem_ctx,
  36                                      const struct auth_usersupplied_info *user_info)
  37 {
  38         if (user_info->client.account_name && *user_info->client.account_name) {
  39                 return NT_STATUS_NOT_IMPLEMENTED;
  40         }
  41
  42         return NT_STATUS_OK;
  43 }
  44
  45 /**
  46  * Return a anonymous logon for anonymous users (username = "")
  47  *
  48  * Typically used as the first module in the auth chain, this allows
  49  * anonymou logons to be dealt with in one place.  Non-anonymou logons 'fail'
  50  * and pass onto the next module.
  51  **/
  52 static NTSTATUS anonymous_check_password(struct auth_method_context *ctx,
  53                                          TALLOC_CTX *mem_ctx,
  54                                          const struct auth_usersupplied_info *user_info,
  55                                          struct auth_serversupplied_info **_server_info)
  56 {
  57         return auth_anonymous_server_info(mem_ctx, lp_netbios_name(ctx->auth_ctx->lp_ctx), _server_info);
  58 }
  59
  60 static const struct auth_operations anonymous_auth_ops = {
  61         .name           = "anonymous",
  62         .get_challenge  = auth_get_challenge_not_implemented,
  63         .want_check     = anonymous_want_check,
  64         .check_password = anonymous_check_password
  65 };
  66
  67 _PUBLIC_ NTSTATUS auth_anonymous_init(void)
  68 {
  69         NTSTATUS ret;
  70
  71         ret = auth_register(&anonymous_auth_ops);
  72         if (!NT_STATUS_IS_OK(ret)) {
  73                 DEBUG(0,("Failed to register 'anonymous' auth backend!\n"));
  74                 return ret;
  75         }
  76
  77         return ret;
  78 }