104 lines
2.6 KiB
C
104 lines
2.6 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/bsl11.
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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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#include <maxscale/authenticator.h>
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#include <maxscale/modutil.h>
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#include <maxscale/alloc.h>
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#include "maxscale/modules.h"
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/**
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* @file authenticator.c - Authenticator module functions
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*/
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/**
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* @brief Initialize an authenticator module
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*
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* Process the options into an array and pass them to the authenticator
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* initialization function
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*
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* The authenticator must implement the @c initialize entry point if this
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* function is called. If the authenticator does not implement this, behavior is
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* undefined.
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*
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* @param func Authenticator entry point
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* @param options Authenticator options
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* @return Authenticator instance or NULL on error
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*/
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bool authenticator_init(void** dest, const char *authenticator, const char *options)
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{
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bool rval = true;
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void *instance = NULL;
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MXS_AUTHENTICATOR *func = (MXS_AUTHENTICATOR*)load_module(authenticator, MODULE_AUTHENTICATOR);
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if (func == NULL)
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{
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rval = false;
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}
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else if (func->initialize)
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{
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char *optarray[AUTHENTICATOR_MAX_OPTIONS + 1];
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size_t optlen = options ? strlen(options) : 0;
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char optcopy[optlen + 1];
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int optcount = 0;
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if (options)
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{
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strcpy(optcopy, options);
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char *opt = optcopy;
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while (opt && optcount < AUTHENTICATOR_MAX_OPTIONS)
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{
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char *end = strnchr_esc(opt, ',', sizeof(optcopy) - (opt - optcopy));
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if (end)
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{
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*end++ = '\0';
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}
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optarray[optcount++] = opt;
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opt = end;
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}
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}
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optarray[optcount] = NULL;
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if ((instance = func->initialize(optarray)) == NULL)
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{
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rval = false;
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}
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}
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*dest = instance;
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return rval;
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}
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/**
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* @brief Get the default authenticator for a protocol
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*
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* @param protocol Protocol to inspect
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* @return The default authenticator for the protocol or NULL if the protocol
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* does not provide one
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*/
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const char* get_default_authenticator(const char *protocol)
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{
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char *rval = NULL;
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MXS_PROTOCOL *protofuncs = (MXS_PROTOCOL*)load_module(protocol, MODULE_PROTOCOL);
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if (protofuncs && protofuncs->auth_default)
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{
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rval = protofuncs->auth_default();
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}
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return rval;
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}
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