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-rw-r--r--Source/charon/encoding/message.c877
1 files changed, 877 insertions, 0 deletions
diff --git a/Source/charon/encoding/message.c b/Source/charon/encoding/message.c
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+++ b/Source/charon/encoding/message.c
@@ -0,0 +1,877 @@
+/**
+ * @file message.c
+ *
+ * @brief Class message_t. Object of this type represents an IKEv2-Message.
+ *
+ */
+
+/*
+ * Copyright (C) 2005 Jan Hutter, 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 <stdlib.h>
+
+#include "message.h"
+
+#include <types.h>
+#include <globals.h>
+#include <ike_sa_id.h>
+#include <encoding/generator.h>
+#include <encoding/parser.h>
+#include <utils/linked_list.h>
+#include <utils/allocator.h>
+#include <utils/logger_manager.h>
+#include <encoding/payloads/encodings.h>
+#include <encoding/payloads/payload.h>
+
+
+/**
+ * Supported payload entry used in message_rule_t
+ *
+ */
+typedef struct supported_payload_entry_s supported_payload_entry_t;
+
+struct supported_payload_entry_s {
+ /**
+ * Payload type
+ */
+ payload_type_t payload_type;
+
+ /**
+ * Minimal occurence of this payload
+ */
+ size_t min_occurence;
+
+ /**
+ * Max occurence of this payload
+ */
+ size_t max_occurence;
+};
+
+/**
+ * Message Rule used to find out which payloads are supported by each message type
+ *
+ */
+typedef struct message_rule_s message_rule_t;
+
+struct message_rule_s {
+ /**
+ * Type of message
+ */
+ exchange_type_t exchange_type;
+
+ /**
+ * Is message a request or response
+ */
+ bool is_request;
+ /**
+ * Number of supported payloads
+ */
+ size_t supported_payloads_count;
+ /**
+ * Pointer to first supported payload entry
+ */
+ supported_payload_entry_t *supported_payloads;
+};
+
+/**
+ * message rule for ike_sa_init from initiator
+ */
+static supported_payload_entry_t supported_ike_sa_init_i_payloads[] =
+{
+ {SECURITY_ASSOCIATION,1,1},
+ {KEY_EXCHANGE,1,1},
+ {NONCE,1,1},
+};
+
+/**
+ * message rule for ike_sa_init from responder
+ */
+static supported_payload_entry_t supported_ike_sa_init_r_payloads[] =
+{
+ {SECURITY_ASSOCIATION,1,1},
+ {KEY_EXCHANGE,1,1},
+ {NONCE,1,1},
+};
+
+
+/**
+ * message rules, defines allowed payloads
+ */
+static message_rule_t message_rules[] = {
+ {IKE_SA_INIT,TRUE,(sizeof(supported_ike_sa_init_i_payloads)/sizeof(supported_payload_entry_t)),supported_ike_sa_init_i_payloads},
+ {IKE_SA_INIT,FALSE,(sizeof(supported_ike_sa_init_r_payloads)/sizeof(supported_payload_entry_t)),supported_ike_sa_init_r_payloads}
+};
+
+/**
+ * Entry for a payload in the internal used linked list
+ *
+ */
+typedef struct payload_entry_s payload_entry_t;
+
+struct payload_entry_s {
+ /**
+ * Type of payload
+ */
+ payload_type_t payload_type;
+ /**
+ * Data struct holding the data of given payload
+ */
+ void *data_struct;
+};
+
+
+/**
+ * Private data of an message_t object
+ */
+typedef struct private_message_s private_message_t;
+
+struct private_message_s {
+
+ /**
+ * Public part of a message_t object
+ */
+ message_t public;
+
+
+ /**
+ * Minor version of message
+ */
+ u_int8_t major_version;
+
+ /**
+ * Major version of message
+ */
+ u_int8_t minor_version;
+
+ /**
+ * First Payload in message
+ */
+ payload_type_t first_payload;
+
+ /**
+ * Assigned exchange type
+ */
+ exchange_type_t exchange_type;
+
+
+ /**
+ * TRUE if message is request.
+ * FALSE if message is reply.
+ */
+ bool is_request;
+
+ /**
+ * Message ID of this message
+ */
+ u_int32_t message_id;
+
+ /**
+ * ID of assigned IKE_SA
+ */
+ ike_sa_id_t *ike_sa_id;
+
+ /**
+ * Assigned UDP packet.
+ *
+ * Stores incoming packet or last generated one.
+ */
+ packet_t *packet;
+
+ /**
+ * Linked List where payload data are stored in
+ */
+ linked_list_t *payloads;
+
+ /**
+ * Assigned parser to parse Header and Body of this message
+ */
+ parser_t *parser;
+
+ /**
+ * logger for this message
+ */
+ logger_t *logger;
+
+ /**
+ * Gets a list of supported payloads of this message type
+ *
+ * @param this calling object
+ * @param[out] supported_payloads first entry of supported payloads
+ * @param[out] supported_payloads_count number of supported payload entries
+ *
+ * @return SUCCESS
+ * NOT_FOUND if no supported payload definition could be found
+ */
+ status_t (*get_supported_payloads) (private_message_t *this, supported_payload_entry_t **supported_payloads,size_t *supported_payloads_count);
+
+};
+
+/**
+ * Implements private_message_t's get_supported_payloads function.
+ * See #private_message_t.get_supported_payloads.
+ */
+status_t get_supported_payloads (private_message_t *this, supported_payload_entry_t **supported_payloads,size_t *supported_payloads_count)
+{
+ int i;
+ exchange_type_t exchange_type = this->public.get_exchange_type(&(this->public));
+ bool is_request = this->public.get_request(&(this->public));
+
+
+ for (i = 0; i < (sizeof(message_rules) / sizeof(message_rule_t)); i++)
+ {
+ if ((exchange_type == message_rules[i].exchange_type) &&
+ (is_request == message_rules[i].is_request))
+ {
+ /* found rule for given exchange_type*/
+ *supported_payloads = message_rules[i].supported_payloads;
+ *supported_payloads_count = message_rules[i].supported_payloads_count;
+
+ return SUCCESS;
+ }
+
+
+ }
+ *supported_payloads = NULL;
+ *supported_payloads_count = 0;
+ return NOT_FOUND;
+}
+
+/**
+ * Implements message_t's set_ike_sa_id function.
+ * See #message_s.set_ike_sa_id.
+ */
+static status_t set_ike_sa_id (private_message_t *this,ike_sa_id_t *ike_sa_id)
+{
+ status_t status;
+ status = ike_sa_id->clone(ike_sa_id,&(this->ike_sa_id));
+ return status;
+}
+
+/**
+ * Implements message_t's get_ike_sa_id function.
+ * See #message_s.get_ike_sa_id.
+ */
+static status_t get_ike_sa_id (private_message_t *this,ike_sa_id_t **ike_sa_id)
+{
+ status_t status;
+ if (this->ike_sa_id == NULL)
+ {
+ return FAILED;
+ }
+ status = this->ike_sa_id->clone(this->ike_sa_id,ike_sa_id);
+ return status;
+}
+
+
+/**
+ * Implements message_t's set_message_id function.
+ * See #message_s.set_message_id.
+ */
+static status_t set_message_id (private_message_t *this,u_int32_t message_id)
+{
+ this->message_id = message_id;
+ return SUCCESS;
+}
+
+
+/**
+ * Implements message_t's set_message_id function.
+ * See #message_s.set_message_id.
+ */
+static u_int32_t get_message_id (private_message_t *this)
+{
+ return this->message_id;
+}
+
+/**
+ * Implements message_t's get_responder_spi function.
+ * See #message_s.get_responder_spi.
+ */
+static u_int64_t get_responder_spi (private_message_t *this)
+{
+ return (this->ike_sa_id->get_responder_spi(this->ike_sa_id));
+}
+
+/**
+ * Implements message_t's set_major_version function.
+ * See #message_s.set_major_version.
+ */
+static status_t set_major_version (private_message_t *this,u_int8_t major_version)
+{
+ this->major_version = major_version;
+ return SUCCESS;
+}
+
+
+/**
+ * Implements message_t's get_major_version function.
+ * See #message_s.get_major_version.
+ */
+static u_int8_t get_major_version (private_message_t *this)
+{
+ return this->major_version;
+}
+
+/**
+ * Implements message_t's set_minor_version function.
+ * See #message_s.set_minor_version.
+ */
+static status_t set_minor_version (private_message_t *this,u_int8_t minor_version)
+{
+ this->minor_version = minor_version;
+ return SUCCESS;
+}
+
+
+/**
+ * Implements message_t's get_minor_version function.
+ * See #message_s.get_minor_version.
+ */
+static u_int8_t get_minor_version (private_message_t *this)
+{
+ return this->minor_version;
+}
+
+/**
+ * Implements message_t's set_exchange_type function.
+ * See #message_s.set_exchange_type.
+ */
+static status_t set_exchange_type (private_message_t *this,exchange_type_t exchange_type)
+{
+ this->exchange_type = exchange_type;
+ return SUCCESS;
+}
+
+
+/**
+ * Implements message_t's get_exchange_type function.
+ * See #message_s.get_exchange_type.
+ */
+static exchange_type_t get_exchange_type (private_message_t *this)
+{
+ return this->exchange_type;
+}
+
+
+/**
+ * Implements message_t's set_request function.
+ * See #message_s.set_request.
+ */
+static status_t set_request (private_message_t *this,bool request)
+{
+ this->is_request = request;
+ return SUCCESS;
+}
+
+/**
+ * Implements message_t's get_request function.
+ * See #message_s.get_request.
+ */
+static exchange_type_t get_request (private_message_t *this)
+{
+ return this->is_request;
+}
+
+static status_t add_payload(private_message_t *this, payload_t *payload)
+{
+ payload_t *last_payload;
+ if ((this->payloads->get_count(this->payloads) > 0) &&
+ (this->payloads->get_last(this->payloads,(void **) &last_payload) != SUCCESS))
+ {
+ return OUT_OF_RES;
+ }
+
+ if (this->payloads->insert_last(this->payloads, payload) != SUCCESS)
+ {
+ return OUT_OF_RES;
+ }
+ if (this->payloads->get_count(this->payloads) == 1)
+ {
+ this->first_payload = payload->get_type(payload);
+ }
+ else
+ {
+ last_payload->set_next_type(last_payload,payload->get_type(payload));
+ }
+
+ this->logger->log(this->logger, CONTROL|MORE, "added payload of type %s to message",
+ mapping_find(payload_type_m, payload->get_type(payload)));
+
+ return SUCCESS;
+}
+
+static status_t set_source(private_message_t *this, host_t *host)
+{
+ if (this->packet->source != NULL)
+ {
+ this->packet->source->destroy(this->packet->source);
+ }
+ this->packet->source = host;
+ return SUCCESS;
+}
+
+static status_t set_destination(private_message_t *this, host_t *host)
+{
+ if (this->packet->destination != NULL)
+ {
+ this->packet->destination->destroy(this->packet->destination);
+ }
+ this->packet->destination = host;
+ return SUCCESS;
+}
+
+static status_t get_source(private_message_t *this, host_t **host)
+{
+ *host = this->packet->source;
+ return SUCCESS;
+}
+
+static status_t get_destination(private_message_t *this, host_t **host)
+{
+ *host = this->packet->destination;
+ return SUCCESS;
+}
+
+
+static status_t get_payload_iterator(private_message_t *this, linked_list_iterator_t **iterator)
+{
+ return this->payloads->create_iterator(this->payloads, iterator, TRUE);
+}
+
+
+/**
+ * Implements message_t's generate function.
+ * See #message_s.generate.
+ */
+static status_t generate(private_message_t *this, packet_t **packet)
+{
+ generator_t *generator;
+ ike_header_t *ike_header;
+ payload_t *payload, *next_payload;
+ linked_list_iterator_t *iterator;
+ status_t status;
+
+
+ this->logger->log(this->logger, CONTROL, "generating message, contains %d payloads",
+ this->payloads->get_count(this->payloads));
+
+ if (this->exchange_type == EXCHANGE_TYPE_UNDEFINED)
+ {
+ this->logger->log(this->logger, ERROR, "exchange type is not defined");
+ return INVALID_STATE;
+ }
+
+ if (this->packet->source == NULL ||
+ this->packet->destination == NULL)
+ {
+ this->logger->log(this->logger, ERROR, "source/destination not defined");
+ return INVALID_STATE;
+ }
+
+
+ ike_header = ike_header_create();
+ if (ike_header == NULL)
+ {
+ return OUT_OF_RES;
+ }
+
+
+ ike_header->set_exchange_type(ike_header, this->exchange_type);
+ ike_header->set_message_id(ike_header, this->message_id);
+ ike_header->set_response_flag(ike_header, !this->is_request);
+ ike_header->set_initiator_flag(ike_header, this->ike_sa_id->is_initiator(this->ike_sa_id));
+ ike_header->set_initiator_spi(ike_header, this->ike_sa_id->get_initiator_spi(this->ike_sa_id));
+ ike_header->set_responder_spi(ike_header, this->ike_sa_id->get_responder_spi(this->ike_sa_id));
+
+ generator = generator_create();
+ if (generator == NULL)
+ {
+ return OUT_OF_RES;
+ }
+
+ payload = (payload_t*)ike_header;
+
+ if (this->payloads->create_iterator(this->payloads, &iterator, TRUE) != SUCCESS)
+ {
+ generator->destroy(generator);
+ ike_header->destroy(ike_header);
+ return OUT_OF_RES;
+ }
+ while(iterator->has_next(iterator))
+ {
+ iterator->current(iterator, (void**)&next_payload);
+ payload->set_next_type(payload, next_payload->get_type(next_payload));
+ status = generator->generate_payload(generator, payload);
+ if (status != SUCCESS)
+ {
+ generator->destroy(generator);
+ ike_header->destroy(ike_header);
+ return status;
+ }
+ payload = next_payload;
+ }
+ iterator->destroy(iterator);
+
+ payload->set_next_type(payload, NO_PAYLOAD);
+ status = generator->generate_payload(generator, payload);
+ if (status != SUCCESS)
+ {
+ generator->destroy(generator);
+ ike_header->destroy(ike_header);
+ return status;
+ }
+
+ ike_header->destroy(ike_header);
+
+
+
+ if (this->packet->data.ptr != NULL)
+ {
+ allocator_free(this->packet->data.ptr);
+ }
+
+ status = generator->write_to_chunk(generator, &(this->packet->data));
+ if (status != SUCCESS)
+ {
+ generator->destroy(generator);
+ return status;
+ }
+
+ this->packet->clone(this->packet, packet);
+
+ generator->destroy(generator);
+
+
+ this->logger->log(this->logger, CONTROL, "message generated successfully");
+ return SUCCESS;
+}
+
+/**
+ * Implements message_t's parse_header function.
+ * See #message_s.parse_header.
+ */
+static status_t parse_header(private_message_t *this)
+{
+ ike_header_t *ike_header;
+ status_t status;
+
+
+ this->logger->log(this->logger, CONTROL, "parsing header of message");
+
+ this->parser->reset_context(this->parser);
+ status = this->parser->parse_payload(this->parser,HEADER,(payload_t **) &ike_header);
+ if (status != SUCCESS)
+ {
+ this->logger->log(this->logger, ERROR, "Header could not be parsed");
+ return status;
+
+ }
+
+ /* verify payload */
+ status = ike_header->payload_interface.verify(&(ike_header->payload_interface));
+ if (status != SUCCESS)
+ {
+ this->logger->log(this->logger, ERROR, "Header verification failed");
+ ike_header->destroy(ike_header);
+ return status;
+ }
+
+ if (this->ike_sa_id != NULL)
+ {
+ this->ike_sa_id->destroy(this->ike_sa_id);
+ }
+
+ this->ike_sa_id = ike_sa_id_create(ike_header->get_initiator_spi(ike_header),
+ ike_header->get_responder_spi(ike_header),
+ ike_header->get_initiator_flag(ike_header));
+ if (this->ike_sa_id == NULL)
+ {
+ this->logger->log(this->logger, ERROR, "could not create ike_sa_id object");
+ ike_header->destroy(ike_header);
+ return OUT_OF_RES;
+ }
+ this->exchange_type = ike_header->get_exchange_type(ike_header);
+ this->message_id = ike_header->get_message_id(ike_header);
+ this->is_request = (!(ike_header->get_response_flag(ike_header)));
+ this->major_version = ike_header->get_maj_version(ike_header);
+ this->minor_version = ike_header->get_min_version(ike_header);
+ this->first_payload = ike_header->payload_interface.get_next_type(&(ike_header->payload_interface));
+
+
+ this->logger->log(this->logger, CONTROL, "parsing header successfully");
+
+ ike_header->destroy(ike_header);
+ return SUCCESS;
+}
+
+/**
+ * Implements message_t's parse_body function.
+ * See #message_s.parse_body.
+ */
+static status_t parse_body (private_message_t *this)
+{
+ status_t status = SUCCESS;
+ int i;
+ payload_type_t current_payload_type = this->first_payload;
+ supported_payload_entry_t *supported_payloads;
+ size_t supported_payloads_count;
+
+
+ this->logger->log(this->logger, CONTROL, "parsing body of message");
+
+ if (this->get_supported_payloads (this, &supported_payloads, &supported_payloads_count) != SUCCESS)
+ {
+ this->logger->log(this->logger, ERROR, "could not get supported payloads");
+ return FAILED;
+ }
+
+ while (current_payload_type != NO_PAYLOAD)
+ {
+ payload_t *current_payload;
+ bool supported = FALSE;
+
+ this->logger->log(this->logger, CONTROL|MORE, "start parsing payload of type %s",
+ mapping_find(payload_type_m, current_payload_type));
+ for (i = 0; i < supported_payloads_count;i++)
+ {
+ if (supported_payloads[i].payload_type == current_payload_type)
+ {
+ supported = TRUE;
+ break;
+ }
+ }
+ if (!supported && (current_payload_type != NO_PAYLOAD))
+ {
+ /* type not supported */
+ status = NOT_SUPPORTED;
+ this->logger->log(this->logger, ERROR, "payload type %s not supported",mapping_find(payload_type_m,current_payload_type));
+ break;
+ }
+
+ status = this->parser->parse_payload(this->parser,current_payload_type,(payload_t **) &current_payload);
+ if (status != SUCCESS)
+ {
+ this->logger->log(this->logger, ERROR, "payload type %s could not be parsed",mapping_find(payload_type_m,current_payload_type));
+ break;
+ }
+
+ status = current_payload->verify(current_payload);
+ if (status != SUCCESS)
+ {
+ this->logger->log(this->logger, ERROR, "payload type %s could not be verified",mapping_find(payload_type_m,current_payload_type));
+ status = VERIFY_ERROR;
+ break;
+ }
+
+ /* get next payload type */
+ current_payload_type = current_payload->get_next_type(current_payload);
+
+ status = this->payloads->insert_last(this->payloads,current_payload);
+ if (status != SUCCESS)
+ {
+ this->logger->log(this->logger, ERROR, "Could not insert current payload to internal list cause of ressource exhausting");
+ break;
+ }
+
+ }
+ if (status != SUCCESS)
+ {
+ /* already parsed payload is destroyed later in destroy call from outside this object */
+ }
+ else
+ {
+ linked_list_iterator_t *iterator;
+
+ status = this->payloads->create_iterator(this->payloads,&iterator,TRUE);
+ if (status != SUCCESS)
+ {
+ this->logger->log(this->logger, ERROR, "Could not create iterator to check supported payloads");
+ return status;
+ }
+
+ /* check for payloads with wrong count*/
+ for (i = 0; i < supported_payloads_count;i++)
+ {
+ size_t min_occurence = supported_payloads[i].min_occurence;
+ size_t max_occurence = supported_payloads[i].max_occurence;
+ payload_type_t payload_type = supported_payloads[i].payload_type;
+ size_t found_payloads = 0;
+
+ iterator->reset(iterator);
+
+ while(iterator->has_next(iterator))
+ {
+ payload_t *current_payload;
+ status = iterator->current(iterator,(void **)&current_payload);
+ if (status != SUCCESS)
+ {
+ this->logger->log(this->logger, ERROR, "Could not get payload from internal list");
+ iterator->destroy(iterator);
+ return status;
+ }
+ if (current_payload->get_type(current_payload) == payload_type)
+ {
+ found_payloads++;
+ if (found_payloads > max_occurence)
+ {
+ this->logger->log(this->logger, ERROR, "Payload of type %s more than %d times (%d) occured in current message",
+ mapping_find(payload_type_m,current_payload->get_type(current_payload)),max_occurence,found_payloads);
+ iterator->destroy(iterator);
+ return NOT_SUPPORTED;
+ }
+ }
+
+ }
+ if (found_payloads < min_occurence)
+ {
+ this->logger->log(this->logger, ERROR, "Payload of type %s not occured %d times",
+ mapping_find(payload_type_m,payload_type),min_occurence);
+ iterator->destroy(iterator);
+ return NOT_SUPPORTED;
+ }
+
+ }
+ iterator->destroy(iterator);
+ }
+ return status;
+}
+
+
+
+/**
+ * Implements message_t's destroy function.
+ * See #message_s.destroy.
+ */
+static status_t destroy (private_message_t *this)
+{
+ linked_list_iterator_t *iterator;
+
+ this->packet->destroy(this->packet);
+
+ if (this->ike_sa_id != NULL)
+ {
+ this->ike_sa_id->destroy(this->ike_sa_id);
+ }
+
+ this->payloads->create_iterator(this->payloads, &iterator, TRUE);
+ while (iterator->has_next(iterator))
+ {
+ payload_t *payload;
+ iterator->current(iterator, (void**)&payload);
+ this->logger->log(this->logger, CONTROL|MOST, "Destroying payload of type %s",
+ mapping_find(payload_type_m, payload->get_type(payload)));
+ payload->destroy(payload);
+ }
+ iterator->destroy(iterator);
+ this->payloads->destroy(this->payloads);
+ this->parser->destroy(this->parser);
+ global_logger_manager->destroy_logger(global_logger_manager, this->logger);
+
+ allocator_free(this);
+ return SUCCESS;
+}
+
+/*
+ * Described in Header-File
+ */
+message_t *message_create_from_packet(packet_t *packet)
+{
+ private_message_t *this = allocator_alloc_thing(private_message_t);
+ if (this == NULL)
+ {
+ return NULL;
+ }
+
+ /* public functions */
+ this->public.set_major_version = (status_t(*)(message_t*, u_int8_t))set_major_version;
+ this->public.get_major_version = (u_int8_t(*)(message_t*))get_major_version;
+ this->public.set_minor_version = (status_t(*)(message_t*, u_int8_t))set_minor_version;
+ this->public.get_minor_version = (u_int8_t(*)(message_t*))get_minor_version;
+ this->public.set_message_id = (status_t(*)(message_t*, u_int32_t))set_message_id;
+ this->public.get_message_id = (u_int32_t(*)(message_t*))get_message_id;
+ this->public.get_responder_spi = (u_int64_t(*)(message_t*))get_responder_spi;
+ this->public.set_ike_sa_id = (status_t(*)(message_t*, ike_sa_id_t *))set_ike_sa_id;
+ this->public.get_ike_sa_id = (status_t(*)(message_t*, ike_sa_id_t **))get_ike_sa_id;
+ this->public.set_exchange_type = (status_t(*)(message_t*, exchange_type_t))set_exchange_type;
+ this->public.get_exchange_type = (exchange_type_t(*)(message_t*))get_exchange_type;
+ this->public.set_request = (status_t(*)(message_t*, bool))set_request;
+ this->public.get_request = (bool(*)(message_t*))get_request;
+ this->public.add_payload = (status_t(*)(message_t*,payload_t*))add_payload;
+ this->public.generate = (status_t (*) (message_t *, packet_t**)) generate;
+ this->public.set_source = (status_t (*) (message_t*,host_t*)) set_source;
+ this->public.get_source = (status_t (*) (message_t*,host_t**)) get_source;
+ this->public.set_destination = (status_t (*) (message_t*,host_t*)) set_destination;
+ this->public.get_destination = (status_t (*) (message_t*,host_t**)) get_destination;
+ this->public.get_payload_iterator = (status_t (*) (message_t *, linked_list_iterator_t **)) get_payload_iterator;
+ this->public.parse_header = (status_t (*) (message_t *)) parse_header;
+ this->public.parse_body = (status_t (*) (message_t *)) parse_body;
+ this->public.destroy = (status_t(*)(message_t*))destroy;
+
+ /* public values */
+ this->exchange_type = EXCHANGE_TYPE_UNDEFINED;
+ this->is_request = TRUE;
+ this->ike_sa_id = NULL;
+ this->first_payload = NO_PAYLOAD;
+ this->message_id = 0;
+
+ /* private functions */
+ this->get_supported_payloads = get_supported_payloads;
+
+ /* private values */
+ if (packet == NULL)
+ {
+ packet = packet_create();
+ }
+ if (packet == NULL)
+ {
+ allocator_free(this);
+ return NULL;
+ }
+ this->packet = packet;
+ this->payloads = linked_list_create();
+ if (this->payloads == NULL)
+ {
+ allocator_free(this);
+ return NULL;
+ }
+
+ /* parser is created from data of packet */
+ this->parser = parser_create(this->packet->data);
+ if (this->parser == NULL)
+ {
+ this->payloads->destroy(this->payloads);
+ allocator_free(this);
+ return NULL;
+ }
+
+ this->logger = global_logger_manager->create_logger(global_logger_manager, MESSAGE, NULL);
+ if (this->logger == NULL)
+ {
+ this->parser->destroy(this->parser);
+ this->payloads->destroy(this->payloads);
+ allocator_free(this);
+ return NULL;
+ }
+
+ return (&this->public);
+}
+
+/*
+ * Described in Header-File
+ */
+message_t *message_create()
+{
+ return message_create_from_packet(NULL);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-21 06:46:17 +0000