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/*
* cryptsetup LUKS2 protobuf to image converter
*
* Copyright (C) 2022-2023 Daniel Zatovic <daniel.zatovic@gmail.com>
* Copyright (C) 2022-2023 Red Hat, Inc. All rights reserved.
*
* 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.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <iostream>
#include <string>
#include <fcntl.h>
#include <unistd.h>
#include <google/protobuf/text_format.h>
#include <google/protobuf/io/zero_copy_stream_impl.h>
#include "proto_to_luks2_converter.h"
using namespace LUKS2_proto;
int main(int argc, char *argv[]) {
LUKS2_both_headers headers;
LUKS2ProtoConverter converter;
int fd;
std::string out_img_name;
if (argc != 2) {
std::cerr << "Usage: " << argv[0] << " <LUKS2 proto>\n";
return EXIT_FAILURE;
}
fd = open(argv[1], O_RDONLY);
if (fd < 0) {
std::cerr << "Failed to open " << argv[1] << std::endl;
return EXIT_FAILURE;
}
google::protobuf::io::FileInputStream fileInput(fd);
if (!google::protobuf::TextFormat::Parse(&fileInput, &headers)) {
std::cerr << "Failed to parse protobuf " << argv[1] << std::endl;
close(fd);
return EXIT_FAILURE;
}
close(fd);
out_img_name = argv[1];
out_img_name += ".img";
fd = open(out_img_name.c_str(), O_RDWR|O_CREAT|O_EXCL|O_CLOEXEC|O_TRUNC, 0644);
if (fd < 0) {
std::cerr << "Failed to open output file " << out_img_name << std::endl;
return EXIT_FAILURE;
}
converter.set_write_headers_only(false);
converter.convert(headers, fd);
close(fd);
return EXIT_SUCCESS;
}
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