--- /dev/null
+/*
+ * Copyright (C) 2010-2012 Tobias Brunner
+ * Copyright (C) 2012 Giuliano Grassi
+ * Copyright (C) 2012 Ralf Sager
+ * 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.
+ */
+
+#include "android_service.h"
+#include "../charonservice.h"
+
+#include <daemon.h>
+#include <library.h>
+#include <processing/jobs/callback_job.h>
+
+typedef struct private_android_service_t private_android_service_t;
+
+/**
+ * private data of Android service
+ */
+struct private_android_service_t {
+
+ /**
+ * public interface
+ */
+ android_service_t public;
+
+ /**
+ * current IKE_SA
+ */
+ ike_sa_t *ike_sa;
+
+ /**
+ * local ipv4 address
+ */
+ char *local_address;
+
+ /**
+ * gateway
+ */
+ char *gateway;
+
+ /**
+ * username
+ */
+ char *username;
+
+};
+
+METHOD(listener_t, child_updown, bool,
+ private_android_service_t *this, ike_sa_t *ike_sa, child_sa_t *child_sa,
+ bool up)
+{
+ if (this->ike_sa == ike_sa)
+ {
+ if (up)
+ {
+ /* disable the hooks registered to catch initiation failures */
+ this->public.listener.ike_updown = NULL;
+ this->public.listener.ike_state_change = NULL;
+ charonservice->update_status(charonservice,
+ CHARONSERVICE_CHILD_STATE_UP);
+ }
+ else
+ {
+ charonservice->update_status(charonservice,
+ CHARONSERVICE_CHILD_STATE_DOWN);
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
+
+METHOD(listener_t, ike_updown, bool,
+ private_android_service_t *this, ike_sa_t *ike_sa, bool up)
+{
+ /* this callback is only registered during initiation, so if the IKE_SA
+ * goes down we assume an authentication error */
+ if (this->ike_sa == ike_sa && !up)
+ {
+ charonservice->update_status(charonservice,
+ CHARONSERVICE_AUTH_ERROR);
+ return FALSE;
+ }
+ return TRUE;
+}
+
+METHOD(listener_t, ike_state_change, bool,
+ private_android_service_t *this, ike_sa_t *ike_sa, ike_sa_state_t state)
+{
+ /* this call back is only registered during initiation */
+ if (this->ike_sa == ike_sa && state == IKE_DESTROYING)
+ {
+ charonservice->update_status(charonservice,
+ CHARONSERVICE_UNREACHABLE_ERROR);
+ return FALSE;
+ }
+ return TRUE;
+}
+
+METHOD(listener_t, alert, bool,
+ private_android_service_t *this, ike_sa_t *ike_sa, alert_t alert,
+ va_list args)
+{
+ if (this->ike_sa == ike_sa)
+ {
+ switch (alert)
+ {
+ case ALERT_PEER_ADDR_FAILED:
+ charonservice->update_status(charonservice,
+ CHARONSERVICE_LOOKUP_ERROR);
+ break;
+ case ALERT_PEER_AUTH_FAILED:
+ charonservice->update_status(charonservice,
+ CHARONSERVICE_PEER_AUTH_ERROR);
+ break;
+ default:
+ break;
+ }
+ }
+ return TRUE;
+}
+
+METHOD(listener_t, ike_rekey, bool,
+ private_android_service_t *this, ike_sa_t *old, ike_sa_t *new)
+{
+ if (this->ike_sa == old)
+ {
+ this->ike_sa = new;
+ }
+ return TRUE;
+}
+
+static job_requeue_t initiate(private_android_service_t *this)
+{
+ identification_t *gateway, *user;
+ ike_cfg_t *ike_cfg;
+ peer_cfg_t *peer_cfg;
+ child_cfg_t *child_cfg;
+ traffic_selector_t *ts;
+ ike_sa_t *ike_sa;
+ auth_cfg_t *auth;
+ lifetime_cfg_t lifetime = {
+ .time = {
+ .life = 10800, /* 3h */
+ .rekey = 10200, /* 2h50min */
+ .jitter = 300 /* 5min */
+ }
+ };
+
+ ike_cfg = ike_cfg_create(TRUE, TRUE, this->local_address, FALSE,
+ charon->socket->get_port(charon->socket, FALSE),
+ this->gateway, FALSE, IKEV2_UDP_PORT);
+ ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
+
+ peer_cfg = peer_cfg_create("android", IKEV2, ike_cfg, CERT_SEND_IF_ASKED,
+ UNIQUE_REPLACE, 1, /* keyingtries */
+ 36000, 0, /* rekey 10h, reauth none */
+ 600, 600, /* jitter, over 10min */
+ TRUE, FALSE, /* mobike, aggressive */
+ 0, 0, /* DPD delay, timeout */
+ host_create_from_string("0.0.0.0", 0) /* virt */,
+ NULL, FALSE, NULL, NULL); /* pool, mediation */
+
+
+ auth = auth_cfg_create();
+ auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_EAP);
+ user = identification_create_from_string(this->username);
+ auth->add(auth, AUTH_RULE_IDENTITY, user);
+ peer_cfg->add_auth_cfg(peer_cfg, auth, TRUE);
+ auth = auth_cfg_create();
+ auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
+ gateway = identification_create_from_string(this->gateway);
+ auth->add(auth, AUTH_RULE_IDENTITY, gateway);
+ peer_cfg->add_auth_cfg(peer_cfg, auth, FALSE);
+
+ child_cfg = child_cfg_create("android", &lifetime, NULL, TRUE, MODE_TUNNEL,
+ ACTION_NONE, ACTION_NONE, ACTION_NONE, FALSE,
+ 0, 0, NULL, NULL, 0);
+ child_cfg->add_proposal(child_cfg, proposal_create_default(PROTO_ESP));
+ ts = traffic_selector_create_dynamic(0, 0, 65535);
+ child_cfg->add_traffic_selector(child_cfg, TRUE, ts);
+ ts = traffic_selector_create_from_string(0, TS_IPV4_ADDR_RANGE, "0.0.0.0",
+ 0, "255.255.255.255", 65535);
+ child_cfg->add_traffic_selector(child_cfg, FALSE, ts);
+ peer_cfg->add_child_cfg(peer_cfg, child_cfg);
+
+ /* get us an IKE_SA */
+ ike_sa = charon->ike_sa_manager->checkout_by_config(charon->ike_sa_manager,
+ peer_cfg);
+ if (!ike_sa)
+ {
+ peer_cfg->destroy(peer_cfg);
+ charonservice->update_status(charonservice,
+ CHARONSERVICE_GENERIC_ERROR);
+ return JOB_REQUEUE_NONE;
+ }
+ if (!ike_sa->get_peer_cfg(ike_sa))
+ {
+ ike_sa->set_peer_cfg(ike_sa, peer_cfg);
+ }
+ peer_cfg->destroy(peer_cfg);
+
+ /* store the IKE_SA so we can track its progress */
+ this->ike_sa = ike_sa;
+
+ /* get an additional reference because initiate consumes one */
+ child_cfg->get_ref(child_cfg);
+ if (ike_sa->initiate(ike_sa, child_cfg, 0, NULL, NULL) != SUCCESS)
+ {
+ DBG1(DBG_CFG, "failed to initiate tunnel");
+ charon->ike_sa_manager->checkin_and_destroy(charon->ike_sa_manager,
+ ike_sa);
+ return JOB_REQUEUE_NONE;
+ }
+ charon->ike_sa_manager->checkin(charon->ike_sa_manager, ike_sa);
+ return JOB_REQUEUE_NONE;
+}
+
+METHOD(android_service_t, destroy, void,
+ private_android_service_t *this)
+{
+ charon->bus->remove_listener(charon->bus, &this->public.listener);
+ free(this->local_address);
+ free(this->username);
+ free(this->gateway);
+ free(this);
+}
+
+/**
+ * See header
+ */
+android_service_t *android_service_create(char *local_address, char *gateway,
+ char *username)
+{
+ private_android_service_t *this;
+
+ INIT(this,
+ .public = {
+ .listener = {
+ .ike_rekey = _ike_rekey,
+ .ike_updown = _ike_updown,
+ .ike_state_change = _ike_state_change,
+ .child_updown = _child_updown,
+ .alert = _alert,
+ },
+ .destroy = _destroy,
+ },
+ .local_address = local_address,
+ .username = username,
+ .gateway = gateway,
+ );
+
+ charon->bus->add_listener(charon->bus, &this->public.listener);
+
+ lib->processor->queue_job(lib->processor,
+ (job_t*)callback_job_create((callback_job_cb_t)initiate, this,
+ NULL, NULL));
+ return &this->public;
+}
projects / strongswan.git / commitdiff