167 lines
4.1 KiB
C
167 lines
4.1 KiB
C
/*
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* Copyright (C) 2013 Tobias Brunner
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* Copyright (C) 2012 Reto Guadagnini
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* HSR Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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/*
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* Copyright (C) 2013 Ruslan Marchenko
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "dnscert_plugin.h"
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#include <daemon.h>
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#include "dnscert_cred.h"
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typedef struct private_dnscert_plugin_t private_dnscert_plugin_t;
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/**
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* private data of the dnscert plugin
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*/
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struct private_dnscert_plugin_t {
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/**
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* implements plugin interface
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*/
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dnscert_plugin_t public;
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/**
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* credential set
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*/
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dnscert_cred_t *cred;
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/**
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* DNSCERT based authentication enabled
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*/
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bool enabled;
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};
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METHOD(plugin_t, get_name, char*,
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private_dnscert_plugin_t *this)
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{
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return "dnscert";
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}
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METHOD(plugin_t, reload, bool,
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private_dnscert_plugin_t *this)
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{
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bool enabled = lib->settings->get_bool(lib->settings,
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"%s.plugins.dnscert.enable", FALSE, lib->ns);
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if (enabled != this->enabled)
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{
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if (enabled)
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{
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lib->credmgr->add_set(lib->credmgr, &this->cred->set);
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}
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else
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{
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lib->credmgr->remove_set(lib->credmgr, &this->cred->set);
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}
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this->enabled = enabled;
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}
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DBG1(DBG_CFG, "dnscert plugin is %sabled", this->enabled ? "en" : "dis");
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return TRUE;
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}
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/**
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* Create resolver and register credential set
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*/
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static bool plugin_cb(private_dnscert_plugin_t *this,
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plugin_feature_t *feature, bool reg, void *cb_data)
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{
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if (reg)
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{
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resolver_t *res;
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res = lib->resolver->create(lib->resolver);
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if (!res)
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{
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DBG1(DBG_CFG, "failed to create a DNS resolver instance");
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return FALSE;
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}
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this->cred = dnscert_cred_create(res);
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reload(this);
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}
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else
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{
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if (this->enabled)
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{
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lib->credmgr->remove_set(lib->credmgr, &this->cred->set);
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}
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this->cred->destroy(this->cred);
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}
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return TRUE;
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}
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METHOD(plugin_t, get_features, int,
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private_dnscert_plugin_t *this, plugin_feature_t *features[])
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{
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static plugin_feature_t f[] = {
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PLUGIN_CALLBACK((plugin_feature_callback_t)plugin_cb, NULL),
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PLUGIN_PROVIDE(CUSTOM, "dnscert"),
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PLUGIN_DEPENDS(RESOLVER),
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PLUGIN_DEPENDS(CERT_DECODE, CERT_ANY),
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PLUGIN_SDEPEND(CERT_DECODE, CERT_X509),
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PLUGIN_SDEPEND(CERT_DECODE, CERT_GPG),
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};
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*features = f;
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return countof(f);
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}
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METHOD(plugin_t, destroy, void,
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private_dnscert_plugin_t *this)
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{
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free(this);
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}
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/*
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* see header file
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*/
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plugin_t *dnscert_plugin_create()
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{
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private_dnscert_plugin_t *this;
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INIT(this,
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.public = {
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.plugin = {
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.get_name = _get_name,
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.get_features = _get_features,
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.reload = _reload,
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.destroy = _destroy,
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},
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},
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);
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return &this->public.plugin;
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}
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