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Annotation of embedaddon/strongswan/src/libcharon/plugins/ipseckey/ipseckey_plugin.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (C) 2013 Tobias Brunner
        !             3:  * Copyright (C) 2012 Reto Guadagnini
        !             4:  * HSR Hochschule fuer Technik Rapperswil
        !             5:  *
        !             6:  * This program is free software; you can redistribute it and/or modify it
        !             7:  * under the terms of the GNU General Public License as published by the
        !             8:  * Free Software Foundation; either version 2 of the License, or (at your
        !             9:  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
        !            10:  *
        !            11:  * This program is distributed in the hope that it will be useful, but
        !            12:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
        !            13:  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
        !            14:  * for more details.
        !            15:  */
        !            16: 
        !            17: #include "ipseckey_plugin.h"
        !            18: 
        !            19: #include <daemon.h>
        !            20: #include "ipseckey_cred.h"
        !            21: 
        !            22: typedef struct private_ipseckey_plugin_t private_ipseckey_plugin_t;
        !            23: 
        !            24: 
        !            25: /**
        !            26:  * private data of the ipseckey plugin
        !            27:  */
        !            28: struct private_ipseckey_plugin_t {
        !            29: 
        !            30:        /**
        !            31:         * implements plugin interface
        !            32:         */
        !            33:        ipseckey_plugin_t public;
        !            34: 
        !            35:        /**
        !            36:         * credential set
        !            37:         */
        !            38:        ipseckey_cred_t *cred;
        !            39: 
        !            40:        /**
        !            41:         * IPSECKEY based authentication enabled
        !            42:         */
        !            43:        bool enabled;
        !            44: };
        !            45: 
        !            46: METHOD(plugin_t, get_name, char*,
        !            47:        private_ipseckey_plugin_t *this)
        !            48: {
        !            49:        return "ipseckey";
        !            50: }
        !            51: 
        !            52: METHOD(plugin_t, reload, bool,
        !            53:        private_ipseckey_plugin_t *this)
        !            54: {
        !            55:        bool enabled = lib->settings->get_bool(lib->settings,
        !            56:                                                                "%s.plugins.ipseckey.enable", FALSE, lib->ns);
        !            57: 
        !            58:        if (enabled != this->enabled)
        !            59:        {
        !            60:                if (enabled)
        !            61:                {
        !            62:                        lib->credmgr->add_set(lib->credmgr, &this->cred->set);
        !            63:                }
        !            64:                else
        !            65:                {
        !            66:                        lib->credmgr->remove_set(lib->credmgr, &this->cred->set);
        !            67:                }
        !            68:                this->enabled = enabled;
        !            69:        }
        !            70:        DBG1(DBG_CFG, "ipseckey plugin is %sabled", this->enabled ? "en" : "dis");
        !            71:        return TRUE;
        !            72: }
        !            73: 
        !            74: /**
        !            75:  * Create resolver and register credential set
        !            76:  */
        !            77: static bool plugin_cb(private_ipseckey_plugin_t *this,
        !            78:                                          plugin_feature_t *feature, bool reg, void *cb_data)
        !            79: {
        !            80:        if (reg)
        !            81:        {
        !            82:                resolver_t *res;
        !            83: 
        !            84:                res = lib->resolver->create(lib->resolver);
        !            85:                if (!res)
        !            86:                {
        !            87:                        DBG1(DBG_CFG, "failed to create a DNS resolver instance");
        !            88:                        return FALSE;
        !            89:                }
        !            90: 
        !            91:                this->cred = ipseckey_cred_create(res);
        !            92:                reload(this);
        !            93:        }
        !            94:        else
        !            95:        {
        !            96:                if (this->enabled)
        !            97:                {
        !            98:                        lib->credmgr->remove_set(lib->credmgr, &this->cred->set);
        !            99:                }
        !           100:                this->cred->destroy(this->cred);
        !           101:        }
        !           102:        return TRUE;
        !           103: }
        !           104: 
        !           105: METHOD(plugin_t, get_features, int,
        !           106:        private_ipseckey_plugin_t *this, plugin_feature_t *features[])
        !           107: {
        !           108:        static plugin_feature_t f[] = {
        !           109:                PLUGIN_CALLBACK((plugin_feature_callback_t)plugin_cb, NULL),
        !           110:                        PLUGIN_PROVIDE(CUSTOM, "ipseckey"),
        !           111:                                PLUGIN_DEPENDS(RESOLVER),
        !           112:                                PLUGIN_DEPENDS(PUBKEY, KEY_RSA),
        !           113:                                PLUGIN_DEPENDS(CERT_ENCODE, CERT_TRUSTED_PUBKEY),
        !           114:        };
        !           115:        *features = f;
        !           116:        return countof(f);
        !           117: }
        !           118: 
        !           119: METHOD(plugin_t, destroy, void,
        !           120:        private_ipseckey_plugin_t *this)
        !           121: {
        !           122:        free(this);
        !           123: }
        !           124: 
        !           125: /*
        !           126:  * see header file
        !           127:  */
        !           128: plugin_t *ipseckey_plugin_create()
        !           129: {
        !           130:        private_ipseckey_plugin_t *this;
        !           131: 
        !           132:        INIT(this,
        !           133:                .public = {
        !           134:                        .plugin = {
        !           135:                                .get_name = _get_name,
        !           136:                                .get_features = _get_features,
        !           137:                                .reload = _reload,
        !           138:                                .destroy = _destroy,
        !           139:                        },
        !           140:                },
        !           141:        );
        !           142: 
        !           143:        return &this->public.plugin;
        !           144: }