src/libcharon/plugins/medcli/medcli_config.c - manifest_repos/strongswan - Git at Google

 /*
  * Copyright (C) 2008 Martin Willi
  * HSR Hochschule fuer Technik Rapperswil
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
  * Free Software Foundation; either version 2 of the License, or (at your
  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * for more details.
  */

 #define _GNU_SOURCE
 #include <string.h>

 #include "medcli_config.h"

 #include <daemon.h>
 #include <processing/jobs/callback_job.h>

 typedef struct private_medcli_config_t private_medcli_config_t;

 /**
  * Name of the mediation connection
  */
 #define MEDIATION_CONN_NAME "medcli-mediation"

 /**
  * Private data of an medcli_config_t object
  */
 struct private_medcli_config_t {

 	/**
 	 * Public part
 	 */
 	medcli_config_t public;

 	/**
 	 * database connection
 	 */
 	database_t *db;

 	/**
 	 * rekey time
 	 */
 	int rekey;

 	/**
 	 * dpd delay
 	 */
 	int dpd;

 	/**
 	 * default ike config
 	 */
 	ike_cfg_t *ike;
 };

 /**
  * create a traffic selector from a CIDR notation string
  */
 static traffic_selector_t *ts_from_string(char *str)
 {
 	if (str)
 	{
 		traffic_selector_t *ts;

 		ts = traffic_selector_create_from_cidr(str, 0, 0, 65535);
 		if (ts)
 		{
 			return ts;
 		}
 	}
 	return traffic_selector_create_dynamic(0, 0, 65535);
 }

 /**
  * Build a mediation config
  */
 static peer_cfg_t *build_mediation_config(private_medcli_config_t *this,
 										  peer_cfg_create_t *defaults)
 {
 	enumerator_t *e;
 	auth_cfg_t *auth;
 	ike_cfg_t *ike_cfg;
 	peer_cfg_t *med_cfg;
 	ike_cfg_create_t ike = {
 		.version = IKEV2,
 		.local = "0.0.0.0",
 		.local_port = charon->socket->get_port(charon->socket, FALSE),
 		.remote_port = IKEV2_UDP_PORT,
 		.no_certreq = TRUE,
 	};
 	peer_cfg_create_t peer = *defaults;
 	chunk_t me, other;

 	/* query mediation server config:
 	 * - build ike_cfg/peer_cfg for mediation connection on-the-fly
 	 */
 	e = this->db->query(this->db,
 			"SELECT Address, ClientConfig.KeyId, MediationServerConfig.KeyId "
 			"FROM MediationServerConfig JOIN ClientConfig",
 			DB_TEXT, DB_BLOB, DB_BLOB);
 	if (!e || !e->enumerate(e, &ike.remote, &me, &other))
 	{
 		DESTROY_IF(e);
 		return NULL;
 	}
 	ike_cfg = ike_cfg_create(&ike);
 	ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
 	ike_cfg->add_proposal(ike_cfg, proposal_create_default_aead(PROTO_IKE));

 	peer.mediation = TRUE;
 	med_cfg = peer_cfg_create(MEDIATION_CONN_NAME, ike_cfg, &peer);
 	e->destroy(e);

 	auth = auth_cfg_create();
 	auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
 	auth->add(auth, AUTH_RULE_IDENTITY,
 			  identification_create_from_encoding(ID_KEY_ID, me));
 	med_cfg->add_auth_cfg(med_cfg, auth, TRUE);
 	auth = auth_cfg_create();
 	auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
 	auth->add(auth, AUTH_RULE_IDENTITY,
 			  identification_create_from_encoding(ID_KEY_ID, other));
 	med_cfg->add_auth_cfg(med_cfg, auth, FALSE);
 	return med_cfg;
 }

 METHOD(backend_t, get_peer_cfg_by_name, peer_cfg_t*,
 	private_medcli_config_t *this, char *name)
 {
 	enumerator_t *e;
 	auth_cfg_t *auth;
 	peer_cfg_t *peer_cfg;
 	child_cfg_t *child_cfg;
 	chunk_t me, other;
 	char *local_net, *remote_net;
 	peer_cfg_create_t peer = {
 		.cert_policy = CERT_NEVER_SEND,
 		.unique = UNIQUE_REPLACE,
 		.keyingtries = 1,
 		.rekey_time = this->rekey * 60,
 		.jitter_time = this->rekey * 5,
 		.over_time = this->rekey * 3,
 		.dpd = this->dpd,
 	};
 	child_cfg_create_t child = {
 		.lifetime = {
 			.time = {
 				.life = this->rekey * 60 + this->rekey,
 				.rekey = this->rekey,
 				.jitter = this->rekey
 			},
 		},
 		.mode = MODE_TUNNEL,
 	};

 	if (streq(name, "medcli-mediation"))
 	{
 		return build_mediation_config(this, &peer);
 	}

 	/* query mediated config:
 	 * - use any-any ike_cfg
 	 * - build peer_cfg on-the-fly using med_cfg
 	 * - add a child_cfg
 	 */
 	e = this->db->query(this->db,
 			"SELECT ClientConfig.KeyId, Connection.KeyId, "
 			"Connection.LocalSubnet, Connection.RemoteSubnet "
 			"FROM ClientConfig JOIN Connection "
 			"WHERE Active AND Alias = ?", DB_TEXT, name,
 			DB_BLOB, DB_BLOB, DB_TEXT, DB_TEXT);
 	if (!e || !e->enumerate(e, &me, &other, &local_net, &remote_net))
 	{
 		DESTROY_IF(e);
 		return NULL;
 	}
 	peer.mediated_by = MEDIATION_CONN_NAME;
 	peer.peer_id = identification_create_from_encoding(ID_KEY_ID, other);
 	peer_cfg = peer_cfg_create(name, this->ike->get_ref(this->ike), &peer);

 	auth = auth_cfg_create();
 	auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
 	auth->add(auth, AUTH_RULE_IDENTITY,
 			  identification_create_from_encoding(ID_KEY_ID, me));
 	peer_cfg->add_auth_cfg(peer_cfg, auth, TRUE);
 	auth = auth_cfg_create();
 	auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
 	auth->add(auth, AUTH_RULE_IDENTITY,
 			  identification_create_from_encoding(ID_KEY_ID, other));
 	peer_cfg->add_auth_cfg(peer_cfg, auth, FALSE);

 	child_cfg = child_cfg_create(name, &child);
 	child_cfg->add_proposal(child_cfg, proposal_create_default_aead(PROTO_ESP));
 	child_cfg->add_proposal(child_cfg, proposal_create_default(PROTO_ESP));
 	child_cfg->add_traffic_selector(child_cfg, TRUE, ts_from_string(local_net));
 	child_cfg->add_traffic_selector(child_cfg, FALSE, ts_from_string(remote_net));
 	peer_cfg->add_child_cfg(peer_cfg, child_cfg);
 	e->destroy(e);
 	return peer_cfg;
 }

 METHOD(backend_t, create_ike_cfg_enumerator, enumerator_t*,
 	private_medcli_config_t *this, host_t *me, host_t *other)
 {
 	return enumerator_create_single(this->ike, NULL);
 }

 typedef struct {
 	/** implements enumerator */
 	enumerator_t public;
 	/** inner SQL enumerator */
 	enumerator_t *inner;
 	/** currently enumerated peer config */
 	peer_cfg_t *current;
 	/** ike cfg to use in peer cfg */
 	ike_cfg_t *ike;
 	/** rekey time */
 	int rekey;
 	/** dpd time */
 	int dpd;
 } peer_enumerator_t;

 METHOD(enumerator_t, peer_enumerator_enumerate, bool,
 	peer_enumerator_t *this, va_list args)
 {
 	char *name, *local_net, *remote_net;
 	chunk_t me, other;
 	peer_cfg_t **cfg;
 	child_cfg_t *child_cfg;
 	auth_cfg_t *auth;
 	peer_cfg_create_t peer = {
 		.cert_policy = CERT_NEVER_SEND,
 		.unique = UNIQUE_REPLACE,
 		.keyingtries = 1,
 		.rekey_time = this->rekey * 60,
 		.jitter_time = this->rekey * 5,
 		.over_time = this->rekey * 3,
 		.dpd = this->dpd,
 	};
 	child_cfg_create_t child = {
 		.lifetime = {
 			.time = {
 				.life = this->rekey * 60 + this->rekey,
 				.rekey = this->rekey,
 				.jitter = this->rekey
 			},
 		},
 		.mode = MODE_TUNNEL,
 	};

 	VA_ARGS_VGET(args, cfg);

 	DESTROY_IF(this->current);
 	if (!this->inner->enumerate(this->inner, &name, &me, &other,
 								&local_net, &remote_net))
 	{
 		this->current = NULL;
 		return FALSE;
 	}
 	this->current = peer_cfg_create(name, this->ike->get_ref(this->ike), &peer);

 	auth = auth_cfg_create();
 	auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
 	auth->add(auth, AUTH_RULE_IDENTITY,
 			  identification_create_from_encoding(ID_KEY_ID, me));
 	this->current->add_auth_cfg(this->current, auth, TRUE);
 	auth = auth_cfg_create();
 	auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
 	auth->add(auth, AUTH_RULE_IDENTITY,
 			  identification_create_from_encoding(ID_KEY_ID, other));
 	this->current->add_auth_cfg(this->current, auth, FALSE);

 	child_cfg = child_cfg_create(name, &child);
 	child_cfg->add_proposal(child_cfg, proposal_create_default_aead(PROTO_ESP));
 	child_cfg->add_proposal(child_cfg, proposal_create_default(PROTO_ESP));
 	child_cfg->add_traffic_selector(child_cfg, TRUE, ts_from_string(local_net));
 	child_cfg->add_traffic_selector(child_cfg, FALSE, ts_from_string(remote_net));
 	this->current->add_child_cfg(this->current, child_cfg);
 	*cfg = this->current;
 	return TRUE;
 }

 METHOD(enumerator_t, peer_enumerator_destroy, void,
 	peer_enumerator_t *this)
 {
 	DESTROY_IF(this->current);
 	this->inner->destroy(this->inner);
 	free(this);
 }

 METHOD(backend_t, create_peer_cfg_enumerator, enumerator_t*,
 	private_medcli_config_t *this, identification_t *me,
 	identification_t *other)
 {
 	peer_enumerator_t *e;

 	INIT(e,
 		.public = {
 			.enumerate = enumerator_enumerate_default,
 			.venumerate = _peer_enumerator_enumerate,
 			.destroy = _peer_enumerator_destroy,
 		},
 		.ike = this->ike,
 		.rekey = this->rekey,
 		.dpd = this->dpd,
 	);

 	/* filter on IDs: NULL or ANY or matching KEY_ID */
 	e->inner = this->db->query(this->db,
 			"SELECT Alias, ClientConfig.KeyId, Connection.KeyId, "
 			"Connection.LocalSubnet, Connection.RemoteSubnet "
 			"FROM ClientConfig JOIN Connection "
 			"WHERE Active AND "
 			"(? OR ClientConfig.KeyId = ?) AND (? OR Connection.KeyId = ?)",
 			DB_INT, me == NULL || me->get_type(me) == ID_ANY,
 			DB_BLOB, me && me->get_type(me) == ID_KEY_ID ?
 				me->get_encoding(me) : chunk_empty,
 			DB_INT, other == NULL || other->get_type(other) == ID_ANY,
 			DB_BLOB, other && other->get_type(other) == ID_KEY_ID ?
 				other->get_encoding(other) : chunk_empty,
 			DB_TEXT, DB_BLOB, DB_BLOB, DB_TEXT, DB_TEXT);
 	if (!e->inner)
 	{
 		free(e);
 		return NULL;
 	}
 	return &e->public;
 }

 /**
  * initiate a peer config
  */
 static job_requeue_t initiate_config(peer_cfg_t *peer_cfg)
 {
 	enumerator_t *enumerator;
 	child_cfg_t *child_cfg = NULL;;

 	enumerator = peer_cfg->create_child_cfg_enumerator(peer_cfg);
 	enumerator->enumerate(enumerator, &child_cfg);
 	if (child_cfg)
 	{
 		child_cfg->get_ref(child_cfg);
 		peer_cfg->get_ref(peer_cfg);
 		enumerator->destroy(enumerator);
 		charon->controller->initiate(charon->controller,
 									 peer_cfg, child_cfg, NULL, NULL, 0, FALSE);
 	}
 	else
 	{
 		enumerator->destroy(enumerator);
 	}
 	return JOB_REQUEUE_NONE;
 }

 /**
  * schedule initiation of all "active" connections
  */
 static void schedule_autoinit(private_medcli_config_t *this)
 {
 	enumerator_t *e;
 	char *name;

 	e = this->db->query(this->db, "SELECT Alias FROM Connection WHERE Active",
 						DB_TEXT);
 	if (e)
 	{
 		while (e->enumerate(e, &name))
 		{
 			peer_cfg_t *peer_cfg;

 			peer_cfg = get_peer_cfg_by_name(this, name);
 			if (peer_cfg)
 			{
 				/* schedule asynchronous initiation job */
 				lib->processor->queue_job(lib->processor,
 						(job_t*)callback_job_create(
 									(callback_job_cb_t)initiate_config,
 									peer_cfg, (void*)peer_cfg->destroy, NULL));
 			}
 		}
 		e->destroy(e);
 	}
 }

 METHOD(medcli_config_t, destroy, void,
 	private_medcli_config_t *this)
 {
 	this->ike->destroy(this->ike);
 	free(this);
 }

 /**
  * Described in header.
  */
 medcli_config_t *medcli_config_create(database_t *db)
 {
 	private_medcli_config_t *this;
 	ike_cfg_create_t ike = {
 		.version = IKEV2,
 		.local = "0.0.0.0",
 		.local_port = charon->socket->get_port(charon->socket, FALSE),
 		.remote = "0.0.0.0",
 		.remote_port = IKEV2_UDP_PORT,
 		.no_certreq = TRUE,
 	};

 	INIT(this,
 		.public = {
 			.backend = {
 				.create_peer_cfg_enumerator = _create_peer_cfg_enumerator,
 				.create_ike_cfg_enumerator = _create_ike_cfg_enumerator,
 				.get_peer_cfg_by_name = _get_peer_cfg_by_name,
 			},
 			.destroy = _destroy,
 		},
 		.db = db,
 		.rekey = lib->settings->get_time(lib->settings, "medcli.rekey", 1200),
 		.dpd = lib->settings->get_time(lib->settings, "medcli.dpd", 300),
 		.ike = ike_cfg_create(&ike),
 	);
 	this->ike->add_proposal(this->ike, proposal_create_default(PROTO_IKE));
 	this->ike->add_proposal(this->ike, proposal_create_default_aead(PROTO_IKE));

 	schedule_autoinit(this);

 	return &this->public;
 }
	/*
	* Copyright (C) 2008 Martin Willi
	* HSR Hochschule fuer Technik Rapperswil
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License as published by the
	* Free Software Foundation; either version 2 of the License, or (at your
	* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
	*
	* This program is distributed in the hope that it will be useful, but
	* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* for more details.
	*/

	#define _GNU_SOURCE
	#include <string.h>

	#include "medcli_config.h"

	#include <daemon.h>
	#include <processing/jobs/callback_job.h>

	typedef struct private_medcli_config_t private_medcli_config_t;

	/**
	* Name of the mediation connection
	*/
	#define MEDIATION_CONN_NAME "medcli-mediation"

	/**
	* Private data of an medcli_config_t object
	*/
	struct private_medcli_config_t {

	/**
	* Public part
	*/
	medcli_config_t public;

	/**
	* database connection
	*/
	database_t *db;

	/**
	* rekey time
	*/
	int rekey;

	/**
	* dpd delay
	*/
	int dpd;

	/**
	* default ike config
	*/
	ike_cfg_t *ike;
	};

	/**
	* create a traffic selector from a CIDR notation string
	*/
	static traffic_selector_t ts_from_string(char str)
	{
	if (str)
	{
	traffic_selector_t *ts;

	ts = traffic_selector_create_from_cidr(str, 0, 0, 65535);
	if (ts)
	{
	return ts;
	}
	}
	return traffic_selector_create_dynamic(0, 0, 65535);
	}

	/**
	* Build a mediation config
	*/
	static peer_cfg_t build_mediation_config(private_medcli_config_t this,
	peer_cfg_create_t *defaults)
	{
	enumerator_t *e;
	auth_cfg_t *auth;
	ike_cfg_t *ike_cfg;
	peer_cfg_t *med_cfg;
	ike_cfg_create_t ike = {
	.version = IKEV2,
	.local = "0.0.0.0",
	.local_port = charon->socket->get_port(charon->socket, FALSE),
	.remote_port = IKEV2_UDP_PORT,
	.no_certreq = TRUE,
	};
	peer_cfg_create_t peer = *defaults;
	chunk_t me, other;

	/* query mediation server config:
	* - build ike_cfg/peer_cfg for mediation connection on-the-fly
	*/
	e = this->db->query(this->db,
	"SELECT Address, ClientConfig.KeyId, MediationServerConfig.KeyId "
	"FROM MediationServerConfig JOIN ClientConfig",
	DB_TEXT, DB_BLOB, DB_BLOB);
	if (!e \|\| !e->enumerate(e, &ike.remote, &me, &other))
	{
	DESTROY_IF(e);
	return NULL;
	}
	ike_cfg = ike_cfg_create(&ike);
	ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
	ike_cfg->add_proposal(ike_cfg, proposal_create_default_aead(PROTO_IKE));

	peer.mediation = TRUE;
	med_cfg = peer_cfg_create(MEDIATION_CONN_NAME, ike_cfg, &peer);
	e->destroy(e);

	auth = auth_cfg_create();
	auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
	auth->add(auth, AUTH_RULE_IDENTITY,
	identification_create_from_encoding(ID_KEY_ID, me));
	med_cfg->add_auth_cfg(med_cfg, auth, TRUE);
	auth = auth_cfg_create();
	auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
	auth->add(auth, AUTH_RULE_IDENTITY,
	identification_create_from_encoding(ID_KEY_ID, other));
	med_cfg->add_auth_cfg(med_cfg, auth, FALSE);
	return med_cfg;
	}

	METHOD(backend_t, get_peer_cfg_by_name, peer_cfg_t*,
	private_medcli_config_t this, char name)
	{
	enumerator_t *e;
	auth_cfg_t *auth;
	peer_cfg_t *peer_cfg;
	child_cfg_t *child_cfg;
	chunk_t me, other;
	char local_net, remote_net;
	peer_cfg_create_t peer = {
	.cert_policy = CERT_NEVER_SEND,
	.unique = UNIQUE_REPLACE,
	.keyingtries = 1,
	.rekey_time = this->rekey * 60,
	.jitter_time = this->rekey * 5,
	.over_time = this->rekey * 3,
	.dpd = this->dpd,
	};
	child_cfg_create_t child = {
	.lifetime = {
	.time = {
	.life = this->rekey * 60 + this->rekey,
	.rekey = this->rekey,
	.jitter = this->rekey
	},
	},
	.mode = MODE_TUNNEL,
	};

	if (streq(name, "medcli-mediation"))
	{
	return build_mediation_config(this, &peer);
	}

	/* query mediated config:
	* - use any-any ike_cfg
	* - build peer_cfg on-the-fly using med_cfg
	* - add a child_cfg
	*/
	e = this->db->query(this->db,
	"SELECT ClientConfig.KeyId, Connection.KeyId, "
	"Connection.LocalSubnet, Connection.RemoteSubnet "
	"FROM ClientConfig JOIN Connection "
	"WHERE Active AND Alias = ?", DB_TEXT, name,
	DB_BLOB, DB_BLOB, DB_TEXT, DB_TEXT);
	if (!e \|\| !e->enumerate(e, &me, &other, &local_net, &remote_net))
	{
	DESTROY_IF(e);
	return NULL;
	}
	peer.mediated_by = MEDIATION_CONN_NAME;
	peer.peer_id = identification_create_from_encoding(ID_KEY_ID, other);
	peer_cfg = peer_cfg_create(name, this->ike->get_ref(this->ike), &peer);

	auth = auth_cfg_create();
	auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
	auth->add(auth, AUTH_RULE_IDENTITY,
	identification_create_from_encoding(ID_KEY_ID, me));
	peer_cfg->add_auth_cfg(peer_cfg, auth, TRUE);
	auth = auth_cfg_create();
	auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
	auth->add(auth, AUTH_RULE_IDENTITY,
	identification_create_from_encoding(ID_KEY_ID, other));
	peer_cfg->add_auth_cfg(peer_cfg, auth, FALSE);

	child_cfg = child_cfg_create(name, &child);
	child_cfg->add_proposal(child_cfg, proposal_create_default_aead(PROTO_ESP));
	child_cfg->add_proposal(child_cfg, proposal_create_default(PROTO_ESP));
	child_cfg->add_traffic_selector(child_cfg, TRUE, ts_from_string(local_net));
	child_cfg->add_traffic_selector(child_cfg, FALSE, ts_from_string(remote_net));
	peer_cfg->add_child_cfg(peer_cfg, child_cfg);
	e->destroy(e);
	return peer_cfg;
	}

	METHOD(backend_t, create_ike_cfg_enumerator, enumerator_t*,
	private_medcli_config_t this, host_t me, host_t *other)
	{
	return enumerator_create_single(this->ike, NULL);
	}

	typedef struct {
	/** implements enumerator */
	enumerator_t public;
	/** inner SQL enumerator */
	enumerator_t *inner;
	/** currently enumerated peer config */
	peer_cfg_t *current;
	/** ike cfg to use in peer cfg */
	ike_cfg_t *ike;
	/** rekey time */
	int rekey;
	/** dpd time */
	int dpd;
	} peer_enumerator_t;

	METHOD(enumerator_t, peer_enumerator_enumerate, bool,
	peer_enumerator_t *this, va_list args)
	{
	char name, local_net, *remote_net;
	chunk_t me, other;
	peer_cfg_t **cfg;
	child_cfg_t *child_cfg;
	auth_cfg_t *auth;
	peer_cfg_create_t peer = {
	.cert_policy = CERT_NEVER_SEND,
	.unique = UNIQUE_REPLACE,
	.keyingtries = 1,
	.rekey_time = this->rekey * 60,
	.jitter_time = this->rekey * 5,
	.over_time = this->rekey * 3,
	.dpd = this->dpd,
	};
	child_cfg_create_t child = {
	.lifetime = {
	.time = {
	.life = this->rekey * 60 + this->rekey,
	.rekey = this->rekey,
	.jitter = this->rekey
	},
	},
	.mode = MODE_TUNNEL,
	};

	VA_ARGS_VGET(args, cfg);

	DESTROY_IF(this->current);
	if (!this->inner->enumerate(this->inner, &name, &me, &other,
	&local_net, &remote_net))
	{
	this->current = NULL;
	return FALSE;
	}
	this->current = peer_cfg_create(name, this->ike->get_ref(this->ike), &peer);

	auth = auth_cfg_create();
	auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
	auth->add(auth, AUTH_RULE_IDENTITY,
	identification_create_from_encoding(ID_KEY_ID, me));
	this->current->add_auth_cfg(this->current, auth, TRUE);
	auth = auth_cfg_create();
	auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
	auth->add(auth, AUTH_RULE_IDENTITY,
	identification_create_from_encoding(ID_KEY_ID, other));
	this->current->add_auth_cfg(this->current, auth, FALSE);

	child_cfg = child_cfg_create(name, &child);
	child_cfg->add_proposal(child_cfg, proposal_create_default_aead(PROTO_ESP));
	child_cfg->add_proposal(child_cfg, proposal_create_default(PROTO_ESP));
	child_cfg->add_traffic_selector(child_cfg, TRUE, ts_from_string(local_net));
	child_cfg->add_traffic_selector(child_cfg, FALSE, ts_from_string(remote_net));
	this->current->add_child_cfg(this->current, child_cfg);
	*cfg = this->current;
	return TRUE;
	}

	METHOD(enumerator_t, peer_enumerator_destroy, void,
	peer_enumerator_t *this)
	{
	DESTROY_IF(this->current);
	this->inner->destroy(this->inner);
	free(this);
	}

	METHOD(backend_t, create_peer_cfg_enumerator, enumerator_t*,
	private_medcli_config_t this, identification_t me,
	identification_t *other)
	{
	peer_enumerator_t *e;

	INIT(e,
	.public = {
	.enumerate = enumerator_enumerate_default,
	.venumerate = _peer_enumerator_enumerate,
	.destroy = _peer_enumerator_destroy,
	},
	.ike = this->ike,
	.rekey = this->rekey,
	.dpd = this->dpd,
	);

	/* filter on IDs: NULL or ANY or matching KEY_ID */
	e->inner = this->db->query(this->db,
	"SELECT Alias, ClientConfig.KeyId, Connection.KeyId, "
	"Connection.LocalSubnet, Connection.RemoteSubnet "
	"FROM ClientConfig JOIN Connection "
	"WHERE Active AND "
	"(? OR ClientConfig.KeyId = ?) AND (? OR Connection.KeyId = ?)",
	DB_INT, me == NULL \|\| me->get_type(me) == ID_ANY,
	DB_BLOB, me && me->get_type(me) == ID_KEY_ID ?
	me->get_encoding(me) : chunk_empty,
	DB_INT, other == NULL \|\| other->get_type(other) == ID_ANY,
	DB_BLOB, other && other->get_type(other) == ID_KEY_ID ?
	other->get_encoding(other) : chunk_empty,
	DB_TEXT, DB_BLOB, DB_BLOB, DB_TEXT, DB_TEXT);
	if (!e->inner)
	{
	free(e);
	return NULL;
	}
	return &e->public;
	}

	/**
	* initiate a peer config
	*/
	static job_requeue_t initiate_config(peer_cfg_t *peer_cfg)
	{
	enumerator_t *enumerator;
	child_cfg_t *child_cfg = NULL;;

	enumerator = peer_cfg->create_child_cfg_enumerator(peer_cfg);
	enumerator->enumerate(enumerator, &child_cfg);
	if (child_cfg)
	{
	child_cfg->get_ref(child_cfg);
	peer_cfg->get_ref(peer_cfg);
	enumerator->destroy(enumerator);
	charon->controller->initiate(charon->controller,
	peer_cfg, child_cfg, NULL, NULL, 0, FALSE);
	}
	else
	{
	enumerator->destroy(enumerator);
	}
	return JOB_REQUEUE_NONE;
	}

	/**
	* schedule initiation of all "active" connections
	*/
	static void schedule_autoinit(private_medcli_config_t *this)
	{
	enumerator_t *e;
	char *name;

	e = this->db->query(this->db, "SELECT Alias FROM Connection WHERE Active",
	DB_TEXT);
	if (e)
	{
	while (e->enumerate(e, &name))
	{
	peer_cfg_t *peer_cfg;

	peer_cfg = get_peer_cfg_by_name(this, name);
	if (peer_cfg)
	{
	/* schedule asynchronous initiation job */
	lib->processor->queue_job(lib->processor,
	(job_t*)callback_job_create(
	(callback_job_cb_t)initiate_config,
	peer_cfg, (void*)peer_cfg->destroy, NULL));
	}
	}
	e->destroy(e);
	}
	}

	METHOD(medcli_config_t, destroy, void,
	private_medcli_config_t *this)
	{
	this->ike->destroy(this->ike);
	free(this);
	}

	/**
	* Described in header.
	*/
	medcli_config_t medcli_config_create(database_t db)
	{
	private_medcli_config_t *this;
	ike_cfg_create_t ike = {
	.version = IKEV2,
	.local = "0.0.0.0",
	.local_port = charon->socket->get_port(charon->socket, FALSE),
	.remote = "0.0.0.0",
	.remote_port = IKEV2_UDP_PORT,
	.no_certreq = TRUE,
	};

	INIT(this,
	.public = {
	.backend = {
	.create_peer_cfg_enumerator = _create_peer_cfg_enumerator,
	.create_ike_cfg_enumerator = _create_ike_cfg_enumerator,
	.get_peer_cfg_by_name = _get_peer_cfg_by_name,
	},
	.destroy = _destroy,
	},
	.db = db,
	.rekey = lib->settings->get_time(lib->settings, "medcli.rekey", 1200),
	.dpd = lib->settings->get_time(lib->settings, "medcli.dpd", 300),
	.ike = ike_cfg_create(&ike),
	);
	this->ike->add_proposal(this->ike, proposal_create_default(PROTO_IKE));
	this->ike->add_proposal(this->ike, proposal_create_default_aead(PROTO_IKE));

	schedule_autoinit(this);

	return &this->public;
	}