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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_credentials_command.hpp"
namespace vsomeip_v3 {
namespace protocol {
update_security_credentials_command::update_security_credentials_command()
: command(id_e::UPDATE_SECURITY_CREDENTIALS_ID) {
}
void
update_security_credentials_command::serialize(std::vector<byte_t> &_buffer,
error_e &_error) const {
size_t its_size(COMMAND_HEADER_SIZE +
(credentials_.size() * (sizeof(uid_t) + sizeof(gid_t))));
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);
for (const auto &c : credentials_) {
std::memcpy(&_buffer[its_offset], &c.first, sizeof(c.first));
its_offset += sizeof(c.first);
std::memcpy(&_buffer[its_offset], &c.second, sizeof(c.second));
its_offset += sizeof(c.second);
}
}
void
update_security_credentials_command::deserialize(const std::vector<byte_t> &_buffer,
error_e &_error) {
if (COMMAND_HEADER_SIZE > _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
if (COMMAND_HEADER_SIZE + size_ > _buffer.size()) {
_error = error_e::ERROR_NOT_ENOUGH_BYTES;
return;
}
size_t its_count(size_ / (sizeof(uid_t) + sizeof(gid_t)));
size_t its_offset(COMMAND_HEADER_SIZE);
uid_t its_uid;
gid_t its_gid;
for (size_t i = 0; i < its_count; i++) {
std::memcpy(&its_uid, &_buffer[its_offset], sizeof(its_uid));
its_offset += sizeof(its_uid);
std::memcpy(&its_gid, &_buffer[its_offset], sizeof(its_gid));
its_offset += sizeof(its_gid);
credentials_.emplace(std::make_pair(its_uid, its_gid));
}
}
std::set<std::pair<uid_t, gid_t> >
update_security_credentials_command::get_credentials() const {
return (credentials_);
}
void
update_security_credentials_command::set_credentials(
const std::set<std::pair<uid_t, gid_t> > &_credentials) {
credentials_ = _credentials;
}
} // namespace protocol
} // namespace vsomeip
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