mirror of
https://gitlab.com/cryptsetup/cryptsetup.git
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78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
/*
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* cryptsetup LUKS2 protobuf to image converter
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*
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* Copyright (C) 2022 Daniel Zatovic <daniel.zatovic@gmail.com>
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* Copyright (C) 2022 Red Hat, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <iostream>
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#include <string>
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#include <type_traits>
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#include <err.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <google/protobuf/text_format.h>
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#include <google/protobuf/io/zero_copy_stream_impl.h>
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#include "plain_json_proto_to_luks2_converter.h"
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using namespace json_proto;
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int main(int argc, char *argv[]) {
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LUKS2_both_headers headers;
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LUKS2ProtoConverter converter;
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std::string out_img_name;
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if (argc != 2) {
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std::cerr << "Usage: " << argv[0] << " <LUKS2 proto>\n";
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return 1;
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}
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int fd = open(argv[1], O_RDONLY);
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if (fd < 0) {
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std::cerr << "Failed to open " << argv[1] << std::endl;
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return 1;
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}
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google::protobuf::io::FileInputStream fileInput(fd);
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if (!google::protobuf::TextFormat::Parse(&fileInput, &headers)) {
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std::cerr << "Failed to parse protobuf " << argv[1] << std::endl;
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goto out;
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}
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close(fd);
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out_img_name = argv[1];
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out_img_name += ".img";
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fd = open(out_img_name.c_str(), O_RDWR|O_CREAT|O_EXCL|O_CLOEXEC|O_TRUNC, 0644);
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if (fd < 0) {
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std::cerr << "Failed to open output file " << out_img_name << std::endl;
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goto out;
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}
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converter.set_write_headers_only(false);
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converter.convert(headers, fd);
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out:
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if (fd >= 0)
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close(fd);
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return 0;
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}
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