e41589be10
- Headers now to be included as <maxscale/xyz.h> - First step, no cleanup of headers has been made. Only moving from one place to another + necessary modifications.
160 lines
4.1 KiB
C
160 lines
4.1 KiB
C
/*
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* Copyright (c) 2016 MariaDB Corporation Ab
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file and at www.mariadb.com/bsl.
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*
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* Change Date: 2019-07-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2 or later of the General
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* Public License.
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*/
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/**
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* @file null_auth_allow.c
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*
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* Null Authentication module for handling the checking of clients credentials
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* for protocols that do not have authentication, either temporarily or
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* permanently
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*
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* @verbatim
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* Revision History
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* Date Who Description
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* 14/03/2016 Martin Brampton Initial version
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* 17/05/2016 Martin Brampton Renamed
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*
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* @endverbatim
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*/
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#include <maxscale/gw_authenticator.h>
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#include <maxscale/modinfo.h>
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#include <maxscale/dcb.h>
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#include <maxscale/buffer.h>
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#include <maxscale/users.h>
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/* @see function load_module in load_utils.c for explanation of the following
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* lint directives.
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*/
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/*lint -e14 */
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MODULE_INFO info =
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{
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MODULE_API_AUTHENTICATOR,
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MODULE_GA,
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GWAUTHENTICATOR_VERSION,
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"The Null client authenticator implementation"
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};
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/*lint +e14 */
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static char *version_str = "V1.1.0";
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static int null_auth_set_protocol_data(DCB *dcb, GWBUF *buf);
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static bool null_auth_is_client_ssl_capable(DCB *dcb);
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static int null_auth_authenticate(DCB *dcb);
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static void null_auth_free_client_data(DCB *dcb);
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/*
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* The "module object" for mysql client authenticator module.
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*/
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static GWAUTHENTICATOR MyObject =
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{
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NULL, /* No initialize entry point */
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NULL, /* No create entry point */
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null_auth_set_protocol_data, /* Extract data into structure */
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null_auth_is_client_ssl_capable, /* Check if client supports SSL */
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null_auth_authenticate, /* Authenticate user credentials */
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null_auth_free_client_data, /* Free the client data held in DCB */
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NULL, /* No destroy entry point */
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users_default_loadusers /* Load generic users */
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};
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/**
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* Implementation of the mandatory version entry point
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*
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* @return version string of the module
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*
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* @see function load_module in load_utils.c for explanation of the following
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* lint directives.
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*/
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/*lint -e14 */
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char* version()
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{
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return version_str;
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}
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/**
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* The module initialisation routine, called when the module
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* is first loaded.
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*/
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void ModuleInit()
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{
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}
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/**
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* The module entry point routine. It is this routine that
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* must populate the structure that is referred to as the
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* "module object", this is a structure with the set of
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* external entry points for this module.
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*
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* @return The module object
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*/
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GWAUTHENTICATOR* GetModuleObject()
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{
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return &MyObject;
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}
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/*lint +e14 */
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/**
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* @brief Null authentication of a user.
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*
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* Always returns success
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*
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* @param dcb Request handler DCB connected to the client
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* @return Authentication status - always 0 to denote success
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*/
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static int
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null_auth_authenticate(DCB *dcb)
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{
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return 0;
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}
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/**
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* @brief Transfer data from the authentication request to the DCB.
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*
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* Does not actually transfer any data
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*
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* @param dcb Request handler DCB connected to the client
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* @param buffer Pointer to pointer to buffer containing data from client
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* @return Authentication status - always 0 to indicate success
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*/
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static int
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null_auth_set_protocol_data(DCB *dcb, GWBUF *buf)
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{
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return 0;
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}
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/**
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* @brief Determine whether the client is SSL capable
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*
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* Always say that client is SSL capable. The null authenticator cannot be
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* used in a context where the client is not SSL capable.
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*
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* @param dcb Request handler DCB connected to the client
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* @return Boolean indicating whether client is SSL capable - always true
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*/
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static bool
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null_auth_is_client_ssl_capable(DCB *dcb)
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{
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return true;
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}
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/**
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* @brief Free the client data pointed to by the passed DCB.
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*
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* The null authenticator does not allocate any data, so nothing to do.
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*
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* @param dcb Request handler DCB connected to the client
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*/
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static void
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null_auth_free_client_data(DCB *dcb) {}
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