Return to isakmp_dpd.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / strongswan / src / libcharon / sa / ikev1 / tasks

Annotation of embedaddon/strongswan/src/libcharon/sa/ikev1/tasks/isakmp_dpd.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * Copyright (C) 2011 Martin Willi
                      3:  * Copyright (C) 2011 revosec AG
                      4:  *
                      5:  * This program is free software; you can redistribute it and/or modify it
                      6:  * under the terms of the GNU General Public License as published by the
                      7:  * Free Software Foundation; either version 2 of the License, or (at your
                      8:  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
                      9:  *
                     10:  * This program is distributed in the hope that it will be useful, but
                     11:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
                     12:  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
                     13:  * for more details.
                     14:  */
                     15: 
                     16: #include "isakmp_dpd.h"
                     17: 
                     18: #include <daemon.h>
                     19: #include <encoding/payloads/notify_payload.h>
                     20: 
                     21: typedef struct private_isakmp_dpd_t private_isakmp_dpd_t;
                     22: 
                     23: /**
                     24:  * Private members of a isakmp_dpd_t task.
                     25:  */
                     26: struct private_isakmp_dpd_t {
                     27: 
                     28:        /**
                     29:         * Public methods and task_t interface.
                     30:         */
                     31:        isakmp_dpd_t public;
                     32: 
                     33:        /**
                     34:         * Sequence number.
                     35:         */
                     36:        uint32_t seqnr;
                     37: 
                     38:        /**
                     39:         * DPD notify type
                     40:         */
                     41:        notify_type_t type;
                     42: 
                     43:        /**
                     44:         * IKE SA we are serving.
                     45:         */
                     46:        ike_sa_t *ike_sa;
                     47: };
                     48: 
                     49: METHOD(task_t, build, status_t,
                     50:        private_isakmp_dpd_t *this, message_t *message)
                     51: {
                     52:        notify_payload_t *notify;
                     53:        ike_sa_id_t *ike_sa_id;
                     54:        uint64_t spi_i, spi_r;
                     55:        uint32_t seqnr;
                     56:        chunk_t spi;
                     57: 
                     58:        notify = notify_payload_create_from_protocol_and_type(PLV1_NOTIFY,
                     59:                                                                                                                  PROTO_IKE, this->type);
                     60:        seqnr = htonl(this->seqnr);
                     61:        ike_sa_id = this->ike_sa->get_id(this->ike_sa);
                     62:        spi_i = ike_sa_id->get_initiator_spi(ike_sa_id);
                     63:        spi_r = ike_sa_id->get_responder_spi(ike_sa_id);
                     64:        spi = chunk_cata("cc", chunk_from_thing(spi_i), chunk_from_thing(spi_r));
                     65: 
                     66:        notify->set_spi_data(notify, spi);
                     67:        notify->set_notification_data(notify, chunk_from_thing(seqnr));
                     68: 
                     69:        message->add_payload(message, (payload_t*)notify);
                     70: 
                     71:        return SUCCESS;
                     72: }
                     73: 
                     74: METHOD(task_t, process, status_t,
                     75:        private_isakmp_dpd_t *this, message_t *message)
                     76: {
                     77:        /* done in task manager */
                     78:        return FAILED;
                     79: }
                     80: 
                     81: METHOD(task_t, get_type, task_type_t,
                     82:        private_isakmp_dpd_t *this)
                     83: {
                     84:        return TASK_ISAKMP_DPD;
                     85: }
                     86: 
                     87: METHOD(task_t, migrate, void,
                     88:        private_isakmp_dpd_t *this, ike_sa_t *ike_sa)
                     89: {
                     90:        this->ike_sa = ike_sa;
                     91: }
                     92: 
                     93: METHOD(task_t, destroy, void,
                     94:        private_isakmp_dpd_t *this)
                     95: {
                     96:        free(this);
                     97: }
                     98: 
                     99: /*
                    100:  * Described in header.
                    101:  */
                    102: isakmp_dpd_t *isakmp_dpd_create(ike_sa_t *ike_sa, notify_type_t type,
                    103:                                                                uint32_t seqnr)
                    104: {
                    105:        private_isakmp_dpd_t *this;
                    106: 
                    107:        INIT(this,
                    108:                .public = {
                    109:                        .task = {
                    110:                                .get_type = _get_type,
                    111:                                .build = _build,
                    112:                                .process = _process,
                    113:                                .migrate = _migrate,
                    114:                                .destroy = _destroy,
                    115:                        },
                    116:                },
                    117:                .ike_sa = ike_sa,
                    118:                .seqnr = seqnr,
                    119:                .type = type,
                    120:        );
                    121: 
                    122:        return &this->public;
                    123: }