2005-11-14 10:14:22 +00:00
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/**
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* @file proposal_substructure.h
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*
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2005-11-28 18:24:10 +00:00
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* @brief Implementation of proposal_substructure_t.
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2005-11-14 10:14:22 +00:00
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*
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*/
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/*
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* Copyright (C) 2005 Jan Hutter, Martin Willi
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* Hochschule fuer Technik Rapperswil
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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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2005-11-14 12:04:06 +00:00
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2005-11-14 10:14:22 +00:00
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/* offsetof macro */
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#include <stddef.h>
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#include "proposal_substructure.h"
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2005-11-23 09:57:18 +00:00
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#include <encoding/payloads/encodings.h>
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#include <encoding/payloads/transform_substructure.h>
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2005-11-23 09:08:45 +00:00
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#include <types.h>
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#include <utils/allocator.h>
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#include <utils/linked_list.h>
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2005-11-14 10:14:22 +00:00
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2005-12-06 13:44:22 +00:00
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/**
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* IKEv1 Value for a proposal payload.
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*/
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#define PROPOSAL_TYPE_VALUE 2
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2005-12-02 11:38:56 +00:00
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/**
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* String mappings for protocol_id_t.
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*/
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mapping_t protocol_id_m[] = {
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{UNDEFINED_PROTOCOL_ID, "UNDEFINED_PROTOCOL_ID"},
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{IKE, "IKE"},
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{AH, "AH"},
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{ESP, "ESP"},
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{MAPPING_END, NULL}
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};
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2005-11-24 09:17:51 +00:00
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typedef struct private_proposal_substructure_t private_proposal_substructure_t;
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2005-11-14 10:14:22 +00:00
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/**
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2005-11-28 18:24:10 +00:00
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* Private data of an proposal_substructure_t object.
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2005-11-14 10:14:22 +00:00
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*
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*/
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2005-11-24 09:17:51 +00:00
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struct private_proposal_substructure_t {
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2005-11-14 10:14:22 +00:00
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/**
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2005-11-28 18:24:10 +00:00
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* Public proposal_substructure_t interface.
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2005-11-14 10:14:22 +00:00
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*/
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proposal_substructure_t public;
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/**
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2005-11-28 18:24:10 +00:00
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* Next payload type.
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2005-11-14 10:14:22 +00:00
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*/
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u_int8_t next_payload;
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/**
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2005-11-28 18:24:10 +00:00
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* Length of this payload.
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2005-11-14 10:14:22 +00:00
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*/
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u_int16_t proposal_length;
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/**
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2005-11-28 18:24:10 +00:00
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* Proposal number.
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2005-11-14 10:14:22 +00:00
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*/
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u_int8_t proposal_number;
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/**
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2005-11-28 18:24:10 +00:00
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* Protocol ID.
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2005-11-14 10:14:22 +00:00
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*/
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u_int8_t protocol_id;
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/**
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2005-11-28 18:24:10 +00:00
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* SPI size of the following SPI.
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2005-11-14 10:14:22 +00:00
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*/
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u_int8_t spi_size;
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/**
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2005-11-28 18:24:10 +00:00
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* Number of transforms.
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2005-11-14 10:14:22 +00:00
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*/
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u_int8_t transforms_count;
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/**
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2005-11-28 18:24:10 +00:00
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* SPI is stored as chunk.
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2005-11-14 10:14:22 +00:00
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*/
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chunk_t spi;
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/**
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2005-11-28 18:24:10 +00:00
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* Transforms are stored in a linked_list_t.
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2005-11-14 10:14:22 +00:00
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*/
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linked_list_t * transforms;
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2005-11-14 16:03:44 +00:00
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/**
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* @brief Computes the length of this substructure.
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*
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* @param this calling private_proposal_substructure_t object
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*/
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2005-11-28 18:24:10 +00:00
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void (*compute_length) (private_proposal_substructure_t *this);
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2005-11-14 10:14:22 +00:00
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};
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/**
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2005-11-28 18:24:10 +00:00
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* Encoding rules to parse or generate a Proposal substructure.
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2005-11-14 10:14:22 +00:00
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*
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* The defined offsets are the positions in a object of type
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* private_proposal_substructure_t.
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*
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*/
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encoding_rule_t proposal_substructure_encodings[] = {
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/* 1 Byte next payload type, stored in the field next_payload */
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{ U_INT_8, offsetof(private_proposal_substructure_t, next_payload) },
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/* Reserved Byte is skipped */
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{ RESERVED_BYTE, 0 },
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2005-11-14 12:04:06 +00:00
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/* Length of the whole proposal substructure payload*/
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2005-11-14 10:14:22 +00:00
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{ PAYLOAD_LENGTH, offsetof(private_proposal_substructure_t, proposal_length) },
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/* proposal number is a number of 8 bit */
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{ U_INT_8, offsetof(private_proposal_substructure_t, proposal_number) },
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/* protocol ID is a number of 8 bit */
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{ U_INT_8, offsetof(private_proposal_substructure_t, protocol_id) },
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/* SPI Size has its own type */
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{ SPI_SIZE, offsetof(private_proposal_substructure_t, spi_size) },
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/* Number of transforms is a number of 8 bit */
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{ U_INT_8, offsetof(private_proposal_substructure_t, transforms_count) },
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/* SPI is a chunk of variable size*/
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{ SPI, offsetof(private_proposal_substructure_t, spi) },
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/* Transforms are stored in a transform substructure,
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offset points to a linked_list_t pointer */
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{ TRANSFORMS, offsetof(private_proposal_substructure_t, transforms) }
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};
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2005-11-17 12:49:35 +00:00
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/*
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1 2 3
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! 0 (last) or 2 ! RESERVED ! Proposal Length !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! Proposal # ! Protocol ID ! SPI Size !# of Transforms!
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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~ SPI (variable) ~
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! !
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~ <Transforms> ~
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! !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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/**
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2005-11-28 18:24:10 +00:00
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* Implementation of payload_t.verify.
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2005-11-17 12:49:35 +00:00
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*/
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static status_t verify(private_proposal_substructure_t *this)
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{
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2005-11-29 12:23:40 +00:00
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status_t status = SUCCESS;
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iterator_t *iterator;
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2005-12-01 08:48:57 +00:00
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if ((this->next_payload != NO_PAYLOAD) && (this->next_payload != 2))
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2005-11-17 12:49:35 +00:00
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{
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/* must be 0 or 2 */
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return FAILED;
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}
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if (this->transforms_count != this->transforms->get_count(this->transforms))
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{
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/* must be the same! */
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return FAILED;
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}
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2005-12-05 13:43:43 +00:00
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if ((this->protocol_id == 0) || (this->protocol_id >= 4))
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2005-11-17 12:49:35 +00:00
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{
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/* reserved are not supported */
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return FAILED;
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}
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2005-11-29 12:23:40 +00:00
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iterator = this->transforms->create_iterator(this->transforms,TRUE);
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while(iterator->has_next(iterator))
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{
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payload_t *current_transform;
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iterator->current(iterator,(void **)¤t_transform);
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status = current_transform->verify(current_transform);
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if (status != SUCCESS)
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{
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break;
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}
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}
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iterator->destroy(iterator);
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2005-11-17 12:49:35 +00:00
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/* proposal number is checked in SA payload */
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2005-11-29 12:23:40 +00:00
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return status;
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2005-11-17 12:49:35 +00:00
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}
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2005-11-14 10:14:22 +00:00
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/**
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2005-11-28 18:24:10 +00:00
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* Implementation of payload_t.get_encoding_rules.
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2005-11-14 10:14:22 +00:00
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*/
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2005-11-28 18:24:10 +00:00
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static void get_encoding_rules(private_proposal_substructure_t *this, encoding_rule_t **rules, size_t *rule_count)
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2005-11-14 10:14:22 +00:00
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{
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*rules = proposal_substructure_encodings;
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*rule_count = sizeof(proposal_substructure_encodings) / sizeof(encoding_rule_t);
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}
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/**
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2005-11-28 18:24:10 +00:00
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* Implementation of payload_t.get_type.
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2005-11-14 10:14:22 +00:00
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*/
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static payload_type_t get_type(private_proposal_substructure_t *this)
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{
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return PROPOSAL_SUBSTRUCTURE;
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}
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/**
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2005-11-28 18:24:10 +00:00
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* Implementation of payload_t.get_next_type.
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2005-11-14 10:14:22 +00:00
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*/
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static payload_type_t get_next_type(private_proposal_substructure_t *this)
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{
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return (this->next_payload);
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}
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2005-11-15 09:14:45 +00:00
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/**
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2005-11-28 18:24:10 +00:00
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* Implementation of payload_t.set_next_type.
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2005-11-15 09:14:45 +00:00
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*/
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2005-11-28 18:24:10 +00:00
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static void set_next_type(private_proposal_substructure_t *this,payload_type_t type)
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2005-11-15 09:14:45 +00:00
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{
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}
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2005-11-14 10:14:22 +00:00
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/**
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2005-11-28 18:24:10 +00:00
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* Implementation of payload_t.get_length.
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2005-11-14 10:14:22 +00:00
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*/
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static size_t get_length(private_proposal_substructure_t *this)
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{
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return this->proposal_length;
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}
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2005-11-14 12:04:06 +00:00
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/**
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2005-11-28 18:24:10 +00:00
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* Implementation of proposal_substructure_t.create_transform_substructure_iterator.
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2005-11-14 12:04:06 +00:00
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*/
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2005-11-29 08:54:48 +00:00
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static iterator_t *create_transform_substructure_iterator (private_proposal_substructure_t *this,bool forward)
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2005-11-14 12:04:06 +00:00
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{
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2005-11-29 08:54:48 +00:00
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return (this->transforms->create_iterator(this->transforms,forward));
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2005-11-14 12:04:06 +00:00
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}
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/**
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2005-11-28 18:24:10 +00:00
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* Implementation of proposal_substructure_t.add_transform_substructure.
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2005-11-14 12:04:06 +00:00
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*/
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2005-11-28 18:24:10 +00:00
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static void add_transform_substructure (private_proposal_substructure_t *this,transform_substructure_t *transform)
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2005-11-14 12:04:06 +00:00
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{
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2005-11-14 17:24:18 +00:00
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status_t status;
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if (this->transforms->get_count(this->transforms) > 0)
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{
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transform_substructure_t *last_transform;
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status = this->transforms->get_last(this->transforms,(void **) &last_transform);
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/* last transform is now not anymore last one */
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last_transform->set_is_last_transform(last_transform,FALSE);
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}
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transform->set_is_last_transform(transform,TRUE);
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2005-11-28 18:24:10 +00:00
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this->transforms->insert_last(this->transforms,(void *) transform);
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2005-11-14 16:03:44 +00:00
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this->compute_length(this);
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}
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2005-12-01 08:48:57 +00:00
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/**
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* Implementation of proposal_substructure_t.proposal_substructure_t.
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*/
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static void set_is_last_proposal (private_proposal_substructure_t *this, bool is_last)
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{
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this->next_payload = (is_last) ? 0: PROPOSAL_TYPE_VALUE;
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}
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2005-11-14 16:03:44 +00:00
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/**
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2005-11-28 18:24:10 +00:00
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* Implementation of proposal_substructure_t.set_proposal_number.
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2005-11-14 16:03:44 +00:00
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*/
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2005-11-28 18:24:10 +00:00
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static void set_proposal_number(private_proposal_substructure_t *this,u_int8_t proposal_number)
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2005-11-14 16:03:44 +00:00
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{
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this->proposal_number = proposal_number;
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}
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/**
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2005-11-28 18:24:10 +00:00
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* Implementation of proposal_substructure_t.get_proposal_number.
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2005-11-14 16:03:44 +00:00
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*/
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static u_int8_t get_proposal_number (private_proposal_substructure_t *this)
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{
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return (this->proposal_number);
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}
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/**
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2005-11-28 18:24:10 +00:00
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* Implementation of proposal_substructure_t.set_protocol_id.
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2005-11-14 16:03:44 +00:00
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*/
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2005-11-28 18:24:10 +00:00
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static void set_protocol_id(private_proposal_substructure_t *this,u_int8_t protocol_id)
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2005-11-14 16:03:44 +00:00
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{
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this->protocol_id = protocol_id;
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}
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/**
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2005-11-28 18:24:10 +00:00
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* Implementation of proposal_substructure_t.get_protocol_id.
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2005-11-14 16:03:44 +00:00
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*/
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static u_int8_t get_protocol_id (private_proposal_substructure_t *this)
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{
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return (this->protocol_id);
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2005-11-14 12:04:06 +00:00
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}
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2005-11-14 16:03:44 +00:00
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/**
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2005-11-28 18:24:10 +00:00
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* Implementation of proposal_substructure_t.set_spi.
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2005-11-14 16:03:44 +00:00
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*/
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2005-11-28 18:24:10 +00:00
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static void set_spi (private_proposal_substructure_t *this, chunk_t spi)
|
2005-11-14 16:03:44 +00:00
|
|
|
{
|
|
|
|
/* first delete already set spi value */
|
|
|
|
if (this->spi.ptr != NULL)
|
|
|
|
{
|
|
|
|
allocator_free(this->spi.ptr);
|
|
|
|
this->spi.ptr = NULL;
|
|
|
|
this->spi.len = 0;
|
|
|
|
this->compute_length(this);
|
|
|
|
}
|
|
|
|
|
|
|
|
this->spi.ptr = allocator_clone_bytes(spi.ptr,spi.len);
|
|
|
|
this->spi.len = spi.len;
|
|
|
|
this->spi_size = spi.len;
|
|
|
|
this->compute_length(this);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2005-11-28 18:24:10 +00:00
|
|
|
* Implementation of proposal_substructure_t.get_spi.
|
2005-11-14 16:03:44 +00:00
|
|
|
*/
|
|
|
|
static chunk_t get_spi (private_proposal_substructure_t *this)
|
|
|
|
{
|
|
|
|
chunk_t spi;
|
|
|
|
spi.ptr = this->spi.ptr;
|
|
|
|
spi.len = this->spi.len;
|
|
|
|
|
|
|
|
return spi;
|
|
|
|
}
|
|
|
|
|
2005-11-28 18:24:10 +00:00
|
|
|
/**
|
|
|
|
* Implementation of proposal_substructure_t.get_info_for_transform_type.
|
|
|
|
*/
|
2005-11-28 15:20:51 +00:00
|
|
|
static status_t get_info_for_transform_type (private_proposal_substructure_t *this,transform_type_t type, u_int16_t *transform_id, u_int16_t *key_length)
|
|
|
|
{
|
|
|
|
iterator_t *iterator;
|
|
|
|
status_t status;
|
|
|
|
u_int16_t found_transform_id;
|
|
|
|
u_int16_t found_key_length;
|
|
|
|
|
2005-11-29 08:54:48 +00:00
|
|
|
iterator = this->transforms->create_iterator(this->transforms,TRUE);
|
2005-11-28 18:24:10 +00:00
|
|
|
|
2005-11-28 15:20:51 +00:00
|
|
|
while (iterator->has_next(iterator))
|
|
|
|
{
|
|
|
|
transform_substructure_t *current_transform;
|
|
|
|
status = iterator->current(iterator,(void **) ¤t_transform);
|
|
|
|
if (status != SUCCESS)
|
|
|
|
{
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (current_transform->get_transform_type(current_transform) == type)
|
|
|
|
{
|
|
|
|
/* now get data for specific type */
|
|
|
|
found_transform_id = current_transform->get_transform_id(current_transform);
|
|
|
|
status = current_transform->get_key_length(current_transform,&found_key_length);
|
|
|
|
*transform_id = found_transform_id;
|
|
|
|
*key_length = found_key_length;
|
|
|
|
iterator->destroy(iterator);
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
iterator->destroy(iterator);
|
2005-11-28 18:24:10 +00:00
|
|
|
return NOT_FOUND;
|
2005-11-28 15:20:51 +00:00
|
|
|
}
|
|
|
|
|
2005-11-14 16:03:44 +00:00
|
|
|
/**
|
2005-11-28 18:24:10 +00:00
|
|
|
* Implementation of private_proposal_substructure_t.compute_length.
|
2005-11-14 16:03:44 +00:00
|
|
|
*/
|
2005-11-28 18:24:10 +00:00
|
|
|
static void compute_length (private_proposal_substructure_t *this)
|
2005-11-14 16:03:44 +00:00
|
|
|
{
|
2005-11-24 14:22:29 +00:00
|
|
|
iterator_t *iterator;
|
2005-11-14 16:03:44 +00:00
|
|
|
size_t transforms_count = 0;
|
|
|
|
size_t length = PROPOSAL_SUBSTRUCTURE_HEADER_LENGTH;
|
2005-11-29 08:54:48 +00:00
|
|
|
iterator = this->transforms->create_iterator(this->transforms,TRUE);
|
2005-11-14 16:03:44 +00:00
|
|
|
while (iterator->has_next(iterator))
|
|
|
|
{
|
|
|
|
payload_t * current_transform;
|
|
|
|
iterator->current(iterator,(void **) ¤t_transform);
|
|
|
|
length += current_transform->get_length(current_transform);
|
|
|
|
transforms_count++;
|
|
|
|
}
|
2005-11-14 17:24:18 +00:00
|
|
|
iterator->destroy(iterator);
|
2005-11-14 16:03:44 +00:00
|
|
|
|
|
|
|
length += this->spi.len;
|
|
|
|
this->transforms_count= transforms_count;
|
|
|
|
this->proposal_length = length;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
2005-12-01 08:48:57 +00:00
|
|
|
/**
|
|
|
|
* Implementation of proposal_substructure_t.get_transform_count.
|
|
|
|
*/
|
|
|
|
static size_t get_transform_count (private_proposal_substructure_t *this)
|
|
|
|
{
|
|
|
|
return this->transforms->get_count(this->transforms);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Implementation of proposal_substructure_t.get_spi_size.
|
|
|
|
*/
|
|
|
|
static size_t get_spi_size (private_proposal_substructure_t *this)
|
|
|
|
{
|
|
|
|
return this->spi.len;
|
|
|
|
}
|
|
|
|
|
2005-11-21 13:44:16 +00:00
|
|
|
/**
|
2005-11-28 18:24:10 +00:00
|
|
|
* Implementation of proposal_substructure_t.clone.
|
2005-11-21 13:44:16 +00:00
|
|
|
*/
|
2005-11-29 08:54:48 +00:00
|
|
|
static private_proposal_substructure_t* clone(private_proposal_substructure_t *this)
|
2005-11-21 13:44:16 +00:00
|
|
|
{
|
|
|
|
private_proposal_substructure_t * new_clone;
|
2005-11-24 14:22:29 +00:00
|
|
|
iterator_t *transforms;
|
2005-11-21 13:44:16 +00:00
|
|
|
|
|
|
|
new_clone = (private_proposal_substructure_t *) proposal_substructure_create();
|
|
|
|
|
|
|
|
new_clone->next_payload = this->next_payload;
|
|
|
|
new_clone->proposal_number = this->proposal_number;
|
|
|
|
new_clone->protocol_id = this->protocol_id;
|
|
|
|
new_clone->spi_size = this->spi_size;
|
|
|
|
if (this->spi.ptr != NULL)
|
|
|
|
{
|
|
|
|
new_clone->spi.ptr = allocator_clone_bytes(this->spi.ptr,this->spi.len);
|
|
|
|
new_clone->spi.len = this->spi.len;
|
|
|
|
}
|
|
|
|
|
2005-11-29 08:54:48 +00:00
|
|
|
transforms = this->transforms->create_iterator(this->transforms,FALSE);
|
2005-11-21 13:44:16 +00:00
|
|
|
|
|
|
|
while (transforms->has_next(transforms))
|
|
|
|
{
|
|
|
|
transform_substructure_t *current_transform;
|
|
|
|
transform_substructure_t *current_transform_clone;
|
2005-11-28 18:24:10 +00:00
|
|
|
|
|
|
|
transforms->current(transforms,(void **) ¤t_transform);
|
|
|
|
|
2005-11-29 08:54:48 +00:00
|
|
|
current_transform_clone = current_transform->clone(current_transform);
|
2005-11-21 13:44:16 +00:00
|
|
|
|
2005-11-28 18:24:10 +00:00
|
|
|
new_clone->public.add_transform_substructure(&(new_clone->public),current_transform_clone);
|
2005-11-21 13:44:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
transforms->destroy(transforms);
|
|
|
|
|
2005-11-29 08:54:48 +00:00
|
|
|
return new_clone;
|
2005-11-21 13:44:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Implements payload_t's and proposal_substructure_t's destroy function.
|
|
|
|
* See #payload_s.destroy or proposal_substructure_s.destroy for description.
|
|
|
|
*/
|
|
|
|
static status_t destroy(private_proposal_substructure_t *this)
|
|
|
|
{
|
|
|
|
/* all proposals are getting destroyed */
|
|
|
|
while (this->transforms->get_count(this->transforms) > 0)
|
|
|
|
{
|
|
|
|
transform_substructure_t *current_transform;
|
|
|
|
if (this->transforms->remove_last(this->transforms,(void **)¤t_transform) != SUCCESS)
|
|
|
|
{
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
current_transform->destroy(current_transform);
|
|
|
|
}
|
|
|
|
this->transforms->destroy(this->transforms);
|
|
|
|
|
|
|
|
if (this->spi.ptr != NULL)
|
|
|
|
{
|
|
|
|
allocator_free(this->spi.ptr);
|
|
|
|
}
|
|
|
|
|
|
|
|
allocator_free(this);
|
|
|
|
|
|
|
|
return SUCCESS;
|
|
|
|
}
|
2005-11-14 16:03:44 +00:00
|
|
|
|
2005-11-14 10:14:22 +00:00
|
|
|
/*
|
2005-11-28 18:24:10 +00:00
|
|
|
* Described in header.
|
2005-11-14 10:14:22 +00:00
|
|
|
*/
|
|
|
|
proposal_substructure_t *proposal_substructure_create()
|
|
|
|
{
|
|
|
|
private_proposal_substructure_t *this = allocator_alloc_thing(private_proposal_substructure_t);
|
2005-11-17 12:49:35 +00:00
|
|
|
|
|
|
|
/* interface functions */
|
|
|
|
this->public.payload_interface.verify = (status_t (*) (payload_t *))verify;
|
2005-11-28 18:24:10 +00:00
|
|
|
this->public.payload_interface.get_encoding_rules = (void (*) (payload_t *, encoding_rule_t **, size_t *) ) get_encoding_rules;
|
2005-11-14 10:14:22 +00:00
|
|
|
this->public.payload_interface.get_length = (size_t (*) (payload_t *)) get_length;
|
|
|
|
this->public.payload_interface.get_next_type = (payload_type_t (*) (payload_t *)) get_next_type;
|
2005-11-28 18:24:10 +00:00
|
|
|
this->public.payload_interface.set_next_type = (void (*) (payload_t *,payload_type_t)) set_next_type;
|
2005-11-14 10:14:22 +00:00
|
|
|
this->public.payload_interface.get_type = (payload_type_t (*) (payload_t *)) get_type;
|
2005-11-28 18:24:10 +00:00
|
|
|
this->public.payload_interface.destroy = (void (*) (payload_t *))destroy;
|
2005-11-17 12:49:35 +00:00
|
|
|
|
|
|
|
/* public functions */
|
2005-11-29 08:54:48 +00:00
|
|
|
this->public.create_transform_substructure_iterator = (iterator_t* (*) (proposal_substructure_t *,bool)) create_transform_substructure_iterator;
|
2005-11-28 18:24:10 +00:00
|
|
|
this->public.add_transform_substructure = (void (*) (proposal_substructure_t *,transform_substructure_t *)) add_transform_substructure;
|
|
|
|
this->public.set_proposal_number = (void (*) (proposal_substructure_t *,u_int8_t))set_proposal_number;
|
2005-11-14 16:03:44 +00:00
|
|
|
this->public.get_proposal_number = (u_int8_t (*) (proposal_substructure_t *)) get_proposal_number;
|
2005-11-28 18:24:10 +00:00
|
|
|
this->public.set_protocol_id = (void (*) (proposal_substructure_t *,u_int8_t))set_protocol_id;
|
2005-11-14 16:03:44 +00:00
|
|
|
this->public.get_protocol_id = (u_int8_t (*) (proposal_substructure_t *)) get_protocol_id;
|
2005-11-28 15:20:51 +00:00
|
|
|
this->public.get_info_for_transform_type = (status_t (*) (proposal_substructure_t *,transform_type_t,u_int16_t *, u_int16_t *))get_info_for_transform_type;
|
2005-12-01 08:48:57 +00:00
|
|
|
this->public.set_is_last_proposal = (void (*) (proposal_substructure_t *,bool)) set_is_last_proposal;
|
|
|
|
|
2005-11-28 18:24:10 +00:00
|
|
|
this->public.set_spi = (void (*) (proposal_substructure_t *,chunk_t))set_spi;
|
2005-11-14 16:03:44 +00:00
|
|
|
this->public.get_spi = (chunk_t (*) (proposal_substructure_t *)) get_spi;
|
2005-12-01 08:48:57 +00:00
|
|
|
this->public.get_transform_count = (size_t (*) (proposal_substructure_t *)) get_transform_count;
|
|
|
|
this->public.get_spi_size = (size_t (*) (proposal_substructure_t *)) get_spi_size;
|
2005-11-29 08:54:48 +00:00
|
|
|
this->public.clone = (proposal_substructure_t * (*) (proposal_substructure_t *)) clone;
|
2005-11-28 18:24:10 +00:00
|
|
|
this->public.destroy = (void (*) (proposal_substructure_t *)) destroy;
|
2005-11-14 10:14:22 +00:00
|
|
|
|
2005-11-28 15:20:51 +00:00
|
|
|
|
2005-11-14 16:03:44 +00:00
|
|
|
/* private functions */
|
|
|
|
this->compute_length = compute_length;
|
|
|
|
|
2005-11-14 10:14:22 +00:00
|
|
|
/* set default values of the fields */
|
|
|
|
this->next_payload = NO_PAYLOAD;
|
|
|
|
this->proposal_length = 0;
|
|
|
|
this->proposal_number = 0;
|
|
|
|
this->protocol_id = 0;
|
|
|
|
this->transforms_count = 0;
|
|
|
|
this->spi_size = 0;
|
|
|
|
this->spi.ptr = NULL;
|
|
|
|
this->spi.len = 0;
|
|
|
|
|
|
|
|
this->transforms = linked_list_create();
|
2005-11-28 18:24:10 +00:00
|
|
|
|
2005-11-14 10:14:22 +00:00
|
|
|
return (&(this->public));
|
|
|
|
}
|