294 lines
7.8 KiB
C
294 lines
7.8 KiB
C
/*
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* Copyright (C) 2008 Martin Willi
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* 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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* $Id$
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*/
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#include "load_tester_config.h"
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#include <daemon.h>
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typedef struct private_load_tester_config_t private_load_tester_config_t;
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/**
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* Private data of an load_tester_config_t object
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*/
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struct private_load_tester_config_t {
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/**
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* Public part
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*/
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load_tester_config_t public;
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/**
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* peer config
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*/
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peer_cfg_t *peer_cfg;
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/**
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* virtual IP, if any
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*/
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host_t *vip;
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/**
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* Remote address
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*/
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char *remote;
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/**
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* IP address pool
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*/
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char *pool;
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/**
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* IKE proposal
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*/
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proposal_t *proposal;
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/**
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* Authentication method(s) to use/expect from initiator
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*/
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char *initiator_auth;
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/**
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* Authentication method(s) use/expected from responder
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*/
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char *responder_auth;
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/**
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* incremental numbering of generated configs
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*/
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u_int num;
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};
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/**
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* Generate auth config from string
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*/
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static void generate_auth_cfg(private_load_tester_config_t *this, char *str,
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peer_cfg_t *peer_cfg, bool local, int num)
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{
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enumerator_t *enumerator;
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auth_cfg_t *auth;
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identification_t *id;
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auth_class_t class;
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eap_type_t type;
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char buf[128];
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int rnd = 0;
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enumerator = enumerator_create_token(str, "|", " ");
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while (enumerator->enumerate(enumerator, &str))
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{
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auth = auth_cfg_create();
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rnd++;
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if (streq(str, "psk"))
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{ /* PSK authentication, use FQDNs */
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class = AUTH_CLASS_PSK;
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if ((local && !num) || (!local && num))
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{
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id = identification_create_from_string("srv.strongswan.org");
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}
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else if (local)
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{
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snprintf(buf, sizeof(buf), "c%d-r%d.strongswan.org", num, rnd);
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id = identification_create_from_string(buf);
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}
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else
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{
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id = identification_create_from_string("*.strongswan.org");
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}
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}
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else if (strneq(str, "eap", strlen("eap")))
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{ /* EAP authentication, use a NAI */
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class = AUTH_CLASS_EAP;
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if (*(str + strlen("eap")) == '-')
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{
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type = eap_type_from_string(str + strlen("eap-"));
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if (type)
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{
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auth->add(auth, AUTH_RULE_EAP_TYPE, type);
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}
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}
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if (local && num)
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{
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snprintf(buf, sizeof(buf), "1%.10d%.4d@strongswan.org", num, rnd);
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id = identification_create_from_string(buf);
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}
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else
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{
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id = identification_create_from_encoding(ID_ANY, chunk_empty);
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}
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}
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else
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{
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if (!streq(str, "pubkey"))
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{
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DBG1(DBG_CFG, "invalid authentication: '%s', fallback to pubkey",
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str);
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}
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/* certificate authentication, use distinguished names */
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class = AUTH_CLASS_PUBKEY;
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if ((local && !num) || (!local && num))
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{
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id = identification_create_from_string(
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"CN=srv, OU=load-test, O=strongSwan");
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}
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else if (local)
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{
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snprintf(buf, sizeof(buf),
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"CN=c%d-r%d, OU=load-test, O=strongSwan", num, rnd);
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id = identification_create_from_string(buf);
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}
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else
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{
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id = identification_create_from_string(
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"CN=*, OU=load-test, O=strongSwan");
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}
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}
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auth->add(auth, AUTH_RULE_AUTH_CLASS, class);
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auth->add(auth, AUTH_RULE_IDENTITY, id);
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peer_cfg->add_auth_cfg(peer_cfg, auth, local);
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}
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enumerator->destroy(enumerator);
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}
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/**
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* Generate a new initiator config, num = 0 for responder config
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*/
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static peer_cfg_t* generate_config(private_load_tester_config_t *this, uint num)
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{
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ike_cfg_t *ike_cfg;
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child_cfg_t *child_cfg;
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peer_cfg_t *peer_cfg;
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traffic_selector_t *ts;
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proposal_t *proposal;
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ike_cfg = ike_cfg_create(FALSE, FALSE, "0.0.0.0", this->remote);
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ike_cfg->add_proposal(ike_cfg, this->proposal->clone(this->proposal));
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peer_cfg = peer_cfg_create("load-test", 2, ike_cfg,
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CERT_SEND_IF_ASKED, UNIQUE_NO, 1, 0, 0, /* keytries, rekey, reauth */
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0, 0, FALSE, 0, /* jitter, overtime, mobike, dpddelay */
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this->vip ? this->vip->clone(this->vip) : NULL,
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this->pool, FALSE, NULL, NULL);
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if (num)
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{ /* initiator */
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generate_auth_cfg(this, this->initiator_auth, peer_cfg, TRUE, num);
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generate_auth_cfg(this, this->responder_auth, peer_cfg, FALSE, num);
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}
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else
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{ /* responder */
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generate_auth_cfg(this, this->responder_auth, peer_cfg, TRUE, num);
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generate_auth_cfg(this, this->initiator_auth, peer_cfg, FALSE, num);
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}
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child_cfg = child_cfg_create("load-test", 1200, 600, 0, NULL, TRUE,
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MODE_TUNNEL, ACTION_NONE, ACTION_NONE, FALSE);
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proposal = proposal_create_from_string(PROTO_ESP, "aes128-sha1");
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child_cfg->add_proposal(child_cfg, proposal);
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ts = traffic_selector_create_dynamic(0, 0, 65535);
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child_cfg->add_traffic_selector(child_cfg, TRUE, ts);
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ts = traffic_selector_create_dynamic(0, 0, 65535);
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child_cfg->add_traffic_selector(child_cfg, FALSE, ts);
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peer_cfg->add_child_cfg(peer_cfg, child_cfg);
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return peer_cfg;
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}
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/**
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* Implementation of backend_t.create_peer_cfg_enumerator.
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*/
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static enumerator_t* create_peer_cfg_enumerator(private_load_tester_config_t *this,
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identification_t *me,
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identification_t *other)
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{
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return enumerator_create_single(this->peer_cfg, NULL);
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}
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/**
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* Implementation of backend_t.create_ike_cfg_enumerator.
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*/
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static enumerator_t* create_ike_cfg_enumerator(private_load_tester_config_t *this,
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host_t *me, host_t *other)
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{
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ike_cfg_t *ike_cfg;
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ike_cfg = this->peer_cfg->get_ike_cfg(this->peer_cfg);
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return enumerator_create_single(ike_cfg, NULL);
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}
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/**
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* implements backend_t.get_peer_cfg_by_name.
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*/
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static peer_cfg_t *get_peer_cfg_by_name(private_load_tester_config_t *this,
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char *name)
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{
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if (streq(name, "load-test"))
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{
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return generate_config(this, this->num++);
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}
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return NULL;
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}
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/**
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* Implementation of load_tester_config_t.destroy.
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*/
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static void destroy(private_load_tester_config_t *this)
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{
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this->peer_cfg->destroy(this->peer_cfg);
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DESTROY_IF(this->proposal);
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DESTROY_IF(this->vip);
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free(this);
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}
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/**
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* Described in header.
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*/
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load_tester_config_t *load_tester_config_create()
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{
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private_load_tester_config_t *this = malloc_thing(private_load_tester_config_t);
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this->public.backend.create_peer_cfg_enumerator = (enumerator_t*(*)(backend_t*, identification_t *me, identification_t *other))create_peer_cfg_enumerator;
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this->public.backend.create_ike_cfg_enumerator = (enumerator_t*(*)(backend_t*, host_t *me, host_t *other))create_ike_cfg_enumerator;
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this->public.backend.get_peer_cfg_by_name = (peer_cfg_t* (*)(backend_t*,char*))get_peer_cfg_by_name;
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this->public.destroy = (void(*)(load_tester_config_t*))destroy;
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this->vip = NULL;
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if (lib->settings->get_bool(lib->settings,
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"charon.plugins.load_tester.request_virtual_ip", FALSE))
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{
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this->vip = host_create_from_string("0.0.0.0", 0);
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}
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this->pool = lib->settings->get_str(lib->settings,
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"charon.plugins.load_tester.pool", NULL);
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this->remote = lib->settings->get_str(lib->settings,
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"charon.plugins.load_tester.remote", "127.0.0.1");
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this->proposal = proposal_create_from_string(PROTO_IKE,
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lib->settings->get_str(lib->settings,
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"charon.plugins.load_tester.proposal", "aes128-sha1-modp768"));
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if (!this->proposal)
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{ /* fallback */
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this->proposal = proposal_create_from_string(PROTO_IKE,
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"aes128-sha1-modp768");
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}
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this->initiator_auth = lib->settings->get_str(lib->settings,
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"charon.plugins.load_tester.initiator_auth", "pubkey");
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this->responder_auth = lib->settings->get_str(lib->settings,
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"charon.plugins.load_tester.responder_auth", "pubkey");
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this->num = 1;
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this->peer_cfg = generate_config(this, 0);
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return &this->public;
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}
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