198 lines
4.1 KiB
C
Executable File
198 lines
4.1 KiB
C
Executable File
/*
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* Copyright (C) 2011 Martin Willi
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* Copyright (C) 2011 revosec AG
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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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#include "informational.h"
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#include <daemon.h>
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#include <sa/ikev1/tasks/isakmp_delete.h>
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#include <sa/ikev1/tasks/quick_delete.h>
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#include <encoding/payloads/delete_payload.h>
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typedef struct private_informational_t private_informational_t;
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/**
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* Private members of a informational_t task.
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*/
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struct private_informational_t {
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/**
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* Public methods and task_t interface.
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*/
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informational_t public;
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/**
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* Assigned IKE_SA.
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*/
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ike_sa_t *ike_sa;
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/**
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* Notify payload to send
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*/
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notify_payload_t *notify;
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/**
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* Delete subtask
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*/
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task_t *del;
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};
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METHOD(task_t, build_i, status_t,
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private_informational_t *this, message_t *message)
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{
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message->add_payload(message, &this->notify->payload_interface);
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this->notify = NULL;
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return SUCCESS;
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}
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METHOD(task_t, process_r, status_t,
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private_informational_t *this, message_t *message)
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{
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enumerator_t *enumerator;
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delete_payload_t *delete;
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notify_payload_t *notify;
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notify_type_t type;
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payload_t *payload;
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status_t status = SUCCESS;
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enumerator = message->create_payload_enumerator(message);
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while (enumerator->enumerate(enumerator, &payload))
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{
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switch (payload->get_type(payload))
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{
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case NOTIFY_V1:
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notify = (notify_payload_t*)payload;
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type = notify->get_notify_type(notify);
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if (type == INITIAL_CONTACT_IKEV1)
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{
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this->ike_sa->set_condition(this->ike_sa,
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COND_INIT_CONTACT_SEEN, TRUE);
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}
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else if (type < 16384)
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{
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DBG1(DBG_IKE, "received %N error notify",
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notify_type_names, notify->get_notify_type(notify));
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if (this->ike_sa->get_state(this->ike_sa) == IKE_CONNECTING)
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{ /* only critical during main mode */
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status = FAILED;
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}
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break;
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}
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else
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{
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DBG1(DBG_IKE, "received %N notify",
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notify_type_names, notify->get_notify_type(notify));
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}
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continue;
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case DELETE_V1:
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if (!this->del)
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{
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delete = (delete_payload_t*)payload;
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if (delete->get_protocol_id(delete) == PROTO_IKE)
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{
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this->del = (task_t*)isakmp_delete_create(this->ike_sa,
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FALSE);
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}
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else
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{
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this->del = (task_t*)quick_delete_create(this->ike_sa,
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PROTO_NONE, 0, FALSE, FALSE);
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}
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}
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break;
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default:
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continue;
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}
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break;
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}
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enumerator->destroy(enumerator);
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if (this->del && status == SUCCESS)
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{
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return this->del->process(this->del, message);
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}
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return status;
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}
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METHOD(task_t, build_r, status_t,
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private_informational_t *this, message_t *message)
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{
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if (this->del)
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{
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return this->del->build(this->del, message);
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}
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return FAILED;
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}
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METHOD(task_t, process_i, status_t,
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private_informational_t *this, message_t *message)
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{
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return FAILED;
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}
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METHOD(task_t, get_type, task_type_t,
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private_informational_t *this)
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{
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return TASK_INFORMATIONAL;
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}
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METHOD(task_t, migrate, void,
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private_informational_t *this, ike_sa_t *ike_sa)
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{
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this->ike_sa = ike_sa;
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}
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METHOD(task_t, destroy, void,
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private_informational_t *this)
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{
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DESTROY_IF(this->notify);
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DESTROY_IF(this->del);
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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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informational_t *informational_create(ike_sa_t *ike_sa, notify_payload_t *notify)
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{
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private_informational_t *this;
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INIT(this,
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.public = {
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.task = {
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.get_type = _get_type,
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.migrate = _migrate,
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.destroy = _destroy,
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},
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},
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.ike_sa = ike_sa,
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.notify = notify,
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);
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if (notify)
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{
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this->public.task.build = _build_i;
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this->public.task.process = _process_i;
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}
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else
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{
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this->public.task.build = _build_r;
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this->public.task.process = _process_r;
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}
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return &this->public;
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}
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