1 files changed, 0 insertions, 637 deletions

diff --git a/src/charon/sa/tasks/ike_mobike.c b/src/charon/sa/tasks/ike_mobike.c
deleted file mode 100644
index d76ba8d2b..000000000
--- a/src/charon/sa/tasks/ike_mobike.c
+++ /dev/null
@@ -1,637 +0,0 @@
-/*
- * Copyright (C) 2007 Martin Willi
- * 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 "ike_mobike.h"
-
-#include <string.h>
-
-#include <daemon.h>
-#include <sa/tasks/ike_natd.h>
-#include <encoding/payloads/notify_payload.h>
-
-#define COOKIE2_SIZE 16
-#define MAX_ADDITIONAL_ADDRS 8
-
-typedef struct private_ike_mobike_t private_ike_mobike_t;
-
-/**
- * Private members of a ike_mobike_t task.
- */
-struct private_ike_mobike_t {
-
-	/**
-	 * Public methods and task_t interface.
-	 */
-	ike_mobike_t public;
-
-	/**
-	 * Assigned IKE_SA.
-	 */
-	ike_sa_t *ike_sa;
-
-	/**
-	 * Are we the initiator?
-	 */
-	bool initiator;
-
-	/**
-	 * cookie2 value to verify new addresses
-	 */
-	chunk_t cookie2;
-
-	/**
-	 * NAT discovery reusing the IKE_NATD task
-	 */
-	ike_natd_t *natd;
-
-	/**
-	 * use task to update addresses
-	 */
-	bool update;
-
-	/**
-	 * do routability check
-	 */
-	bool check;
-
-	/**
-	 * include address list update
-	 */
-	bool address;
-};
-
-/**
- * flush the IKE_SAs list of additional addresses
- */
-static void flush_additional_addresses(private_ike_mobike_t *this)
-{
-	iterator_t *iterator;
-	host_t *host;
-
-	iterator = this->ike_sa->create_additional_address_iterator(this->ike_sa);
-	while (iterator->iterate(iterator, (void**)&host))
-	{
-		iterator->remove(iterator);
-		host->destroy(host);
-	}
-	iterator->destroy(iterator);
-}
-
-
-/**
- * read notifys from message and evaluate them
- */
-static void process_payloads(private_ike_mobike_t *this, message_t *message)
-{
-	enumerator_t *enumerator;
-	payload_t *payload;
-	bool first = TRUE;
-
-	enumerator = message->create_payload_enumerator(message);
-	while (enumerator->enumerate(enumerator, &payload))
-	{
-		int family = AF_INET;
-		notify_payload_t *notify;
-		chunk_t data;
-		host_t *host;
-
-		if (payload->get_type(payload) != NOTIFY)
-		{
-			continue;
-		}
-		notify = (notify_payload_t*)payload;
-		switch (notify->get_notify_type(notify))
-		{
-			case MOBIKE_SUPPORTED:
-			{
-				peer_cfg_t *peer_cfg;
-
-				peer_cfg = this->ike_sa->get_peer_cfg(this->ike_sa);
-				if (!this->initiator &&
-					peer_cfg && !peer_cfg->use_mobike(peer_cfg))
-				{
-					DBG1(DBG_IKE, "peer supports MOBIKE, but disabled in config");
-				}
-				else
-				{
-					DBG1(DBG_IKE, "peer supports MOBIKE");
-					this->ike_sa->enable_extension(this->ike_sa, EXT_MOBIKE);
-				}
-				break;
-			}
-			case COOKIE2:
-			{
-				chunk_free(&this->cookie2);
-				this->cookie2 = chunk_clone(notify->get_notification_data(notify));
-				break;
-			}
-			case ADDITIONAL_IP6_ADDRESS:
-			{
-				family = AF_INET6;
-				/* fall through */
-			}
-			case ADDITIONAL_IP4_ADDRESS:
-			{
-				if (first)
-				{	/* an ADDITIONAL_*_ADDRESS means replace, so flush once */
-					flush_additional_addresses(this);
-					first = FALSE;
-				}
-				data = notify->get_notification_data(notify);
-				host = host_create_from_chunk(family, data, 0);
-				DBG2(DBG_IKE, "got additional MOBIKE peer address: %H", host);
-				this->ike_sa->add_additional_address(this->ike_sa, host);
-				break;
-			}
-			case UPDATE_SA_ADDRESSES:
-			{
-				this->update = TRUE;
-				break;
-			}
-			case NO_ADDITIONAL_ADDRESSES:
-			{
-				flush_additional_addresses(this);
-				break;
-			}
-			case NAT_DETECTION_SOURCE_IP:
-			case NAT_DETECTION_DESTINATION_IP:
-			{
-				/* NAT check in this MOBIKE exchange, create subtask for it */
-				if (this->natd == NULL)
-				{
-					this->natd = ike_natd_create(this->ike_sa, this->initiator);
-				}
-				break;
-			}
-			default:
-				break;
-		}
-	}
-	enumerator->destroy(enumerator);
-}
-
-/**
- * Add ADDITIONAL_*_ADDRESS notifys depending on our address list
- */
-static void build_address_list(private_ike_mobike_t *this, message_t *message)
-{
-	enumerator_t *enumerator;
-	host_t *host, *me;
-	notify_type_t type;
-	int added = 0;
-
-	me = this->ike_sa->get_my_host(this->ike_sa);
-	enumerator = charon->kernel_interface->create_address_enumerator(
-										charon->kernel_interface, FALSE, FALSE);
-	while (enumerator->enumerate(enumerator, (void**)&host))
-	{
-		if (me->ip_equals(me, host))
-		{	/* "ADDITIONAL" means do not include IKE_SAs host */
-			continue;
-		}
-		switch (host->get_family(host))
-		{
-			case AF_INET:
-				type = ADDITIONAL_IP4_ADDRESS;
-				break;
-			case AF_INET6:
-				type = ADDITIONAL_IP6_ADDRESS;
-				break;
-			default:
-				continue;
-		}
-		message->add_notify(message, FALSE, type, host->get_address(host));
-		if (++added >= MAX_ADDITIONAL_ADDRS)
-		{	/* limit number of notifys, some implementations do not like too
-			 * many of them (f.e. strongSwan ;-) */
-			break;
-		}
-	}
-	if (!added)
-	{
-		message->add_notify(message, FALSE, NO_ADDITIONAL_ADDRESSES, chunk_empty);
-	}
-	enumerator->destroy(enumerator);
-}
-
-/**
- * build a cookie and add it to the message
- */
-static void build_cookie(private_ike_mobike_t *this, message_t *message)
-{
-	rng_t *rng;
-
-	chunk_free(&this->cookie2);
-	rng = lib->crypto->create_rng(lib->crypto, RNG_STRONG);
-	if (rng)
-	{
-		rng->allocate_bytes(rng, COOKIE2_SIZE, &this->cookie2);
-		rng->destroy(rng);
-		message->add_notify(message, FALSE, COOKIE2, this->cookie2);
-	}
-}
-
-/**
- * update addresses of associated CHILD_SAs
- */
-static void update_children(private_ike_mobike_t *this)
-{
-	iterator_t *iterator;
-	child_sa_t *child_sa;
-
-	iterator = this->ike_sa->create_child_sa_iterator(this->ike_sa);
-	while (iterator->iterate(iterator, (void**)&child_sa))
-	{
-		if (child_sa->update(child_sa,
-				this->ike_sa->get_my_host(this->ike_sa),
-				this->ike_sa->get_other_host(this->ike_sa),
-				this->ike_sa->get_virtual_ip(this->ike_sa, TRUE),
-				this->ike_sa->has_condition(this->ike_sa, COND_NAT_ANY)) == NOT_SUPPORTED)
-		{
-			this->ike_sa->rekey_child_sa(this->ike_sa,
-					child_sa->get_protocol(child_sa),
-					child_sa->get_spi(child_sa, TRUE));
-		}
-	}
-	iterator->destroy(iterator);
-}
-
-/**
- * Implementation of ike_mobike_t.transmit
- */
-static void transmit(private_ike_mobike_t *this, packet_t *packet)
-{
-	host_t *me, *other, *me_old, *other_old;
-	iterator_t *iterator;
-	packet_t *copy;
-
-	if (!this->check)
-	{
-		return;
-	}
-
-	me_old = this->ike_sa->get_my_host(this->ike_sa);
-	other_old = this->ike_sa->get_other_host(this->ike_sa);
-
-	me = charon->kernel_interface->get_source_addr(
-									charon->kernel_interface, other_old, NULL);
-	if (me)
-	{
-		me->set_port(me, me->ip_equals(me, me_old) ?
-					 me_old->get_port(me_old) : IKEV2_NATT_PORT);
-		DBG1(DBG_IKE, "checking original path %#H - %#H", me, other_old);
-		copy = packet->clone(packet);
-		copy->set_source(copy, me);
-		charon->sender->send(charon->sender, copy);
-	}
-
-	iterator = this->ike_sa->create_additional_address_iterator(this->ike_sa);
-	while (iterator->iterate(iterator, (void**)&other))
-	{
-		me = charon->kernel_interface->get_source_addr(
-										charon->kernel_interface, other, NULL);
-		if (me)
-		{
-			if (me->get_family(me) != other->get_family(other))
-			{
-				me->destroy(me);
-				continue;
-			}
-			/* reuse port for an active address, 4500 otherwise */
-			me->set_port(me, me->ip_equals(me, me_old) ?
-						 me_old->get_port(me_old) : IKEV2_NATT_PORT);
-			other = other->clone(other);
-			other->set_port(other, other->ip_equals(other, other_old) ?
-							other_old->get_port(other_old) : IKEV2_NATT_PORT);
-			DBG1(DBG_IKE, "checking path %#H - %#H", me, other);
-			copy = packet->clone(packet);
-			copy->set_source(copy, me);
-			copy->set_destination(copy, other);
-			charon->sender->send(charon->sender, copy);
-		}
-	}
-	iterator->destroy(iterator);
-}
-
-/**
- * Implementation of task_t.process for initiator
- */
-static status_t build_i(private_ike_mobike_t *this, message_t *message)
-{
-	if (message->get_message_id(message) == 1)
-	{	/* only in first IKE_AUTH */
-		message->add_notify(message, FALSE, MOBIKE_SUPPORTED, chunk_empty);
-		build_address_list(this, message);
-	}
-	else if (message->get_exchange_type(message) == INFORMATIONAL)
-	{
-		host_t *old, *new;
-
-		/* we check if the existing address is still valid */
-		old = message->get_source(message);
-		new = charon->kernel_interface->get_source_addr(charon->kernel_interface,
-										message->get_destination(message), old);
-		if (new)
-		{
-			if (!new->ip_equals(new, old))
-			{
-				new->set_port(new, old->get_port(old));
-				message->set_source(message, new);
-			}
-			else
-			{
-				new->destroy(new);
-			}
-		}
-		if (this->update)
-		{
-			message->add_notify(message, FALSE, UPDATE_SA_ADDRESSES, chunk_empty);
-			build_cookie(this, message);
-			update_children(this);
-		}
-		if (this->address)
-		{
-			build_address_list(this, message);
-		}
-		if (this->natd)
-		{
-			this->natd->task.build(&this->natd->task, message);
-		}
-	}
-	return NEED_MORE;
-}
-
-/**
- * Implementation of task_t.process for responder
- */
-static status_t process_r(private_ike_mobike_t *this, message_t *message)
-{
-	if (message->get_message_id(message) == 1)
-	{	/* only first IKE_AUTH */
-		process_payloads(this, message);
-	}
-	else if (message->get_exchange_type(message) == INFORMATIONAL)
-	{
-		process_payloads(this, message);
-		if (this->update)
-		{
-			host_t *me, *other;
-
-			me = message->get_destination(message);
-			other = message->get_source(message);
-			this->ike_sa->set_my_host(this->ike_sa, me->clone(me));
-			this->ike_sa->set_other_host(this->ike_sa, other->clone(other));
-		}
-
-		if (this->natd)
-		{
-			this->natd->task.process(&this->natd->task, message);
-		}
-	}
-	return NEED_MORE;
-}
-
-/**
- * Implementation of task_t.build for responder
- */
-static status_t build_r(private_ike_mobike_t *this, message_t *message)
-{
-	if (message->get_exchange_type(message) == IKE_AUTH &&
-		this->ike_sa->get_state(this->ike_sa) == IKE_ESTABLISHED)
-	{
-		if (this->ike_sa->supports_extension(this->ike_sa, EXT_MOBIKE))
-		{
-			message->add_notify(message, FALSE, MOBIKE_SUPPORTED, chunk_empty);
-			build_address_list(this, message);
-		}
-		return SUCCESS;
-	}
-	else if (message->get_exchange_type(message) == INFORMATIONAL)
-	{
-		if (this->natd)
-		{
-			this->natd->task.build(&this->natd->task, message);
-		}
-		if (this->cookie2.ptr)
-		{
-			message->add_notify(message, FALSE, COOKIE2, this->cookie2);
-			chunk_free(&this->cookie2);
-		}
-		if (this->update)
-		{
-			update_children(this);
-		}
-		return SUCCESS;
-	}
-	return NEED_MORE;
-}
-
-/**
- * Implementation of task_t.process for initiator
- */
-static status_t process_i(private_ike_mobike_t *this, message_t *message)
-{
-	if (message->get_exchange_type(message) == IKE_AUTH &&
-		this->ike_sa->get_state(this->ike_sa) == IKE_ESTABLISHED)
-	{
-		process_payloads(this, message);
-		return SUCCESS;
-	}
-	else if (message->get_exchange_type(message) == INFORMATIONAL)
-	{
-		u_int32_t updates = this->ike_sa->get_pending_updates(this->ike_sa) - 1;
-		this->ike_sa->set_pending_updates(this->ike_sa, updates);
-		if (updates > 0)
-		{
-			/* newer update queued, ignore this one */
-			return SUCCESS;
-		}
-		if (this->cookie2.ptr)
-		{	/* check cookie if we included one */
-			chunk_t cookie2;
-
-			cookie2 = this->cookie2;
-			this->cookie2 = chunk_empty;
-			process_payloads(this, message);
-			if (!chunk_equals(cookie2, this->cookie2))
-			{
-				chunk_free(&cookie2);
-				DBG1(DBG_IKE, "COOKIE2 mismatch, closing IKE_SA");
-				return FAILED;
-			}
-			chunk_free(&cookie2);
-		}
-		else
-		{
-			process_payloads(this, message);
-		}
-		if (this->natd)
-		{
-			this->natd->task.process(&this->natd->task, message);
-			if (this->natd->has_mapping_changed(this->natd))
-			{
-				/* force an update if mappings have changed */
-				this->update = this->check = TRUE;
-				DBG1(DBG_IKE, "detected changes in NAT mappings, "
-					 "initiating MOBIKE update");
-			}
-		}
-		if (this->update)
-		{
-			/* update again, as NAT state may have changed */
-			update_children(this);
-		}
-		if (this->check)
-		{
-			host_t *me_new, *me_old, *other_new, *other_old;
-
-			me_new = message->get_destination(message);
-			other_new = message->get_source(message);
-			me_old = this->ike_sa->get_my_host(this->ike_sa);
-			other_old = this->ike_sa->get_other_host(this->ike_sa);
-
-			if (!me_new->equals(me_new, me_old))
-			{
-				this->update = TRUE;
-				this->ike_sa->set_my_host(this->ike_sa, me_new->clone(me_new));
-			}
-			if (!other_new->equals(other_new, other_old))
-			{
-				this->update = TRUE;
-				this->ike_sa->set_other_host(this->ike_sa, other_new->clone(other_new));
-			}
-			if (this->update)
-			{
-				/* start the update with the same task */
-				this->check = FALSE;
-				this->address = FALSE;
-				if (this->natd)
-				{
-					this->natd->task.destroy(&this->natd->task);
-				}
-				this->natd = ike_natd_create(this->ike_sa, this->initiator);
-				this->ike_sa->set_pending_updates(this->ike_sa, 1);
-				return NEED_MORE;
-			}
-		}
-		return SUCCESS;
-	}
-	return NEED_MORE;
-}
-
-/**
- * Implementation of ike_mobike_t.roam.
- */
-static void roam(private_ike_mobike_t *this, bool address)
-{
-	this->check = TRUE;
-	this->address = address;
-	this->ike_sa->set_pending_updates(this->ike_sa,
-							this->ike_sa->get_pending_updates(this->ike_sa) + 1);
-}
-
-/**
- * Implementation of ike_mobike_t.dpd
- */
-static void dpd(private_ike_mobike_t *this)
-{
-	if (!this->natd)
-	{
-		this->natd = ike_natd_create(this->ike_sa, this->initiator);
-	}
-	this->address = FALSE;
-	this->ike_sa->set_pending_updates(this->ike_sa,
-							this->ike_sa->get_pending_updates(this->ike_sa) + 1);
-}
-
-/**
- * Implementation of ike_mobike_t.is_probing.
- */
-static bool is_probing(private_ike_mobike_t *this)
-{
-	return this->check;
-}
-
-/**
- * Implementation of task_t.get_type
- */
-static task_type_t get_type(private_ike_mobike_t *this)
-{
-	return IKE_MOBIKE;
-}
-
-/**
- * Implementation of task_t.migrate
- */
-static void migrate(private_ike_mobike_t *this, ike_sa_t *ike_sa)
-{
-	chunk_free(&this->cookie2);
-	this->ike_sa = ike_sa;
-	if (this->natd)
-	{
-		this->natd->task.migrate(&this->natd->task, ike_sa);
-	}
-}
-
-/**
- * Implementation of task_t.destroy
- */
-static void destroy(private_ike_mobike_t *this)
-{
-	chunk_free(&this->cookie2);
-	if (this->natd)
-	{
-		this->natd->task.destroy(&this->natd->task);
-	}
-	free(this);
-}
-
-/*
- * Described in header.
- */
-ike_mobike_t *ike_mobike_create(ike_sa_t *ike_sa, bool initiator)
-{
-	private_ike_mobike_t *this = malloc_thing(private_ike_mobike_t);
-
-	this->public.roam = (void(*)(ike_mobike_t*,bool))roam;
-	this->public.dpd = (void(*)(ike_mobike_t*))dpd;
-	this->public.transmit = (void(*)(ike_mobike_t*,packet_t*))transmit;
-	this->public.is_probing = (bool(*)(ike_mobike_t*))is_probing;
-	this->public.task.get_type = (task_type_t(*)(task_t*))get_type;
-	this->public.task.migrate = (void(*)(task_t*,ike_sa_t*))migrate;
-	this->public.task.destroy = (void(*)(task_t*))destroy;
-
-	if (initiator)
-	{
-		this->public.task.build = (status_t(*)(task_t*,message_t*))build_i;
-		this->public.task.process = (status_t(*)(task_t*,message_t*))process_i;
-	}
-	else
-	{
-		this->public.task.build = (status_t(*)(task_t*,message_t*))build_r;
-		this->public.task.process = (status_t(*)(task_t*,message_t*))process_r;
-	}
-
-	this->ike_sa = ike_sa;
-	this->initiator = initiator;
-	this->update = FALSE;
-	this->check = FALSE;
-	this->address = TRUE;
-	this->cookie2 = chunk_empty;
-	this->natd = NULL;
-
-	return &this->public;
-}
-