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// Copyright (C) 2021 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <limits>
#include "../include/update_security_policy_command.hpp"
#include "../../security/include/policy.hpp"
namespace vsomeip_v3 {
namespace protocol {
update_security_policy_command::update_security_policy_command(
bool _is_internal)
: command(_is_internal ?
id_e::UPDATE_SECURITY_POLICY_INT_ID :
id_e::UPDATE_SECURITY_POLICY_ID) {
}
void
update_security_policy_command::serialize(std::vector<byte_t> &_buffer,
error_e &_error) const {
std::vector<byte_t> its_policy_data;
if (policy_) {
if (policy_->serialize(its_policy_data)) {
_error = error_e::ERROR_UNKNOWN;
return;
}
}
size_t its_size(COMMAND_HEADER_SIZE + sizeof(update_id_)
+ its_policy_data.size());
if (its_size > std::numeric_limits<command_size_t>::max()) {
_error = error_e::ERROR_MAX_COMMAND_SIZE_EXCEEDED;
return;
}
// resize buffer
_buffer.resize(its_size);
// set size
size_ = static_cast<command_size_t>(its_size - COMMAND_HEADER_SIZE);
// serialize header
command::serialize(_buffer, _error);
if (_error != error_e::ERROR_OK)
return;
// serialize payload
size_t its_offset(COMMAND_HEADER_SIZE);
std::memcpy(&_buffer[its_offset], &update_id_, sizeof(update_id_));
its_offset += sizeof(update_id_);
std::memcpy(&_buffer[its_offset],
&its_policy_data[0], its_policy_data.size());
}
void
update_security_policy_command::deserialize(const std::vector<byte_t> &_buffer,
error_e &_error) {
if (COMMAND_HEADER_SIZE + sizeof(update_id_) > _buffer.size()) {
_error = error_e::ERROR_NOT_ENOUGH_BYTES;
return;
}
// deserialize header
command::deserialize(_buffer, _error);
if (_error != error_e::ERROR_OK)
return;
// deserialize payload
std::memcpy(&update_id_, &_buffer[COMMAND_POSITION_PAYLOAD],
sizeof(update_id_));
policy_ = std::make_shared<policy>();
const byte_t *its_policy_data
= &_buffer[COMMAND_HEADER_SIZE + sizeof(update_id_)];
uint32_t its_policy_size
= uint32_t(_buffer.size() - COMMAND_HEADER_SIZE - sizeof(update_id_));
if (its_policy_size == 0
|| !policy_->deserialize(its_policy_data, its_policy_size)) {
_error = error_e::ERROR_UNKNOWN;
policy_.reset();
return;
}
}
uint32_t
update_security_policy_command::get_update_id() const {
return (update_id_);
}
void
update_security_policy_command::set_update_id(uint32_t _update_id) {
update_id_ = _update_id;
}
std::shared_ptr<policy>
update_security_policy_command::get_policy() const {
return (policy_);
}
void
update_security_policy_command::set_policy(
const std::shared_ptr<policy> &_policy) {
policy_ = _policy;
}
} // namespace protocol
} // namespace vsomeip
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