source: trunk/server/source4/auth/ntlm/auth_anonymous.c

/* 
   Unix SMB/CIFS implementation.

   Anonymous Authentification

   Copyright (C) Stefan Metzmacher            2004-2005
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "includes.h"
#include "auth/auth.h"
#include "auth/ntlm/auth_proto.h"
#include "param/param.h"

/**
 * Return a anonymous logon for anonymous users (username = "")
 *
 * Typically used as the first module in the auth chain, this allows
 * anonymou logons to be dealt with in one place.  Non-anonymou logons 'fail'
 * and pass onto the next module.
 **/
static NTSTATUS anonymous_want_check(struct auth_method_context *ctx,
                                     TALLOC_CTX *mem_ctx,
                                     const struct auth_usersupplied_info *user_info)
{
        if (user_info->client.account_name && *user_info->client.account_name) {
                return NT_STATUS_NOT_IMPLEMENTED;
        }

        return NT_STATUS_OK;
}

/**
 * Return a anonymous logon for anonymous users (username = "")
 *
 * Typically used as the first module in the auth chain, this allows
 * anonymou logons to be dealt with in one place.  Non-anonymou logons 'fail'
 * and pass onto the next module.
 **/
static NTSTATUS anonymous_check_password(struct auth_method_context *ctx,
                                         TALLOC_CTX *mem_ctx,
                                         const struct auth_usersupplied_info *user_info, 
                                         struct auth_user_info_dc **_user_info_dc)
{
        return auth_anonymous_user_info_dc(mem_ctx, lpcfg_netbios_name(ctx->auth_ctx->lp_ctx), _user_info_dc);
}

static const struct auth_operations anonymous_auth_ops = {
        .name           = "anonymous",
        .get_challenge  = auth_get_challenge_not_implemented,
        .want_check     = anonymous_want_check,
        .check_password = anonymous_check_password
};

_PUBLIC_ NTSTATUS auth_anonymous_init(void)
{
        NTSTATUS ret;

        ret = auth_register(&anonymous_auth_ops);
        if (!NT_STATUS_IS_OK(ret)) {
                DEBUG(0,("Failed to register 'anonymous' auth backend!\n"));
                return ret;
        }

        return ret;
}