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221 lines
6.9 KiB
221 lines
6.9 KiB
/*
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Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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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, version 2.0, for more details.
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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 St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <gmock/gmock-matchers.h>
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#include <gtest/gtest.h>
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#include <plugin/keyring/converter.h>
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#include <algorithm>
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#include <map>
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#include <string>
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#include <vector>
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namespace keyring_converter_unittest {
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using namespace keyring;
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using ::testing::StrEq;
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using Arch = Converter::Arch;
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class Converter_test : public ::testing::Test {};
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class KeyData {
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public:
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KeyData(const char *id, const char *type, const char *user_id,
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const char *data)
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: id(id), type(type), user_id(user_id), data(data) {}
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std::string serialize(Arch arch) const {
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std::string output;
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size_t width = Converter::get_width(arch);
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// key data lengths
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std::vector<size_t> lengths = {id.length(), type.length(), user_id.length(),
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data.length()};
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// append lengths
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char src[8] = {0};
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char dst[8] = {0};
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for (auto const &length : lengths) {
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memcpy(src, &length, sizeof(size_t));
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Converter::convert(src, dst, Converter::get_native_arch(), arch);
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output.append(dst, width);
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}
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// append data
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output += id + type + user_id + data;
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// calculate total length and append padding
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size_t total = width + output.length();
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size_t padding = (width - total % width) % width;
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output.append(padding, '\0');
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total += padding;
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// convert total
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memcpy(src, &total, sizeof(size_t));
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Converter::convert(src, dst, Converter::get_native_arch(), arch);
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output = std::string(dst, width) + output;
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return output;
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}
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private:
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std::string id, type, user_id, data;
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};
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/**
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tests conversion between various width/endianess binary representations
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*/
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TEST_F(Converter_test, LengthConversion) {
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struct Conversion {
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Arch src, dst;
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const std::string source, expected;
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};
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// list of valid conversions and expected results
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Conversion valid_tasks[] = {
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// no conversion
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{Arch::LE_32, Arch::LE_32, "\x12\x34\x56\x78", "\x12\x34\x56\x78"},
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{Arch::BE_32, Arch::BE_32, "\x12\x34\x56\x78", "\x12\x34\x56\x78"},
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{
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Arch::LE_64,
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Arch::LE_64,
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"\x12\x34\x56\x78\x12\x34\x56\x78",
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"\x12\x34\x56\x78\x12\x34\x56\x78",
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},
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{
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Arch::BE_64,
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Arch::BE_64,
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"\x12\x34\x56\x78\x12\x34\x56\x78",
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"\x12\x34\x56\x78\x12\x34\x56\x78",
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}
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// 32 bit endianess conversions
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,
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{Arch::LE_32, Arch::BE_32, "\x12\x34\x56\x78", "\x78\x56\x34\x12"},
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{Arch::BE_32, Arch::LE_32, "\x12\x34\x56\x78", "\x78\x56\x34\x12"}
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// 64 bit endianess conversions
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,
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{Arch::LE_64, Arch::BE_64, "\x12\x34\x56\x78\x12\x34\x56\x78",
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"\x78\x56\x34\x12\x78\x56\x34\x12"},
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{Arch::BE_64, Arch::LE_64, "\x12\x34\x56\x78\x12\x34\x56\x78",
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"\x78\x56\x34\x12\x78\x56\x34\x12"}
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// growth conversions
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,
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{Arch::LE_32,
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Arch::LE_64,
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"\x12\x34\x56\x78",
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{"\x12\x34\x56\x78\x00\x00\x00\x00", 8}},
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{Arch::BE_32, Arch::LE_64, "\x12\x34\x56\x78",
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"\x00\x00\x00\x00\x78\x56\x34\x12"},
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{Arch::LE_32, Arch::BE_64, "\x12\x34\x56\x78",
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"\x00\x00\x00\x00\x78\x56\x34\x12"},
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{Arch::BE_32, Arch::BE_64, "\x12\x34\x56\x78",
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"\x00\x00\x00\x00\x12\x34\x56\x78"}
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// shrink conversions
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,
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{Arch::LE_64,
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Arch::LE_32,
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{"\x12\x34\x56\x78\x00\x00\x00\x00", 8},
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"\x12\x34\x56\x78"},
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{Arch::LE_64,
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Arch::BE_32,
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{"\x12\x34\x56\x78\x00\x00\x00\x00", 8},
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"\x78\x56\x34\x12"},
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{Arch::BE_64,
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Arch::LE_32,
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{"\x00\x00\x00\x00\x12\x34\x56\x78", 8},
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"\x78\x56\x34\x12"},
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{Arch::BE_64,
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Arch::BE_32,
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{"\x00\x00\x00\x00\x12\x34\x56\x78", 8},
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"\x12\x34\x56\x78"}};
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char result[8] = {0};
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for (auto &task : valid_tasks) {
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// convert task
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auto length =
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Converter::convert(task.source.c_str(), result, task.src, task.dst);
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// there should be no errors
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EXPECT_NE(length, 0);
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// result should match expected value
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EXPECT_EQ(strncmp(result, task.expected.c_str(), task.expected.length()),
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0);
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}
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// list of invalid conversions
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Conversion invalid_tasks[] = {
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// shrink conversions with values > 32bit
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{Arch::LE_64, Arch::LE_32, {"\x12\x34\x56\x78\x90\x00\x00\x00", 8}, ""},
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{Arch::LE_64, Arch::BE_32, {"\x12\x34\x56\x78\x00\x90\x00\x00", 8}, ""},
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{Arch::BE_64, Arch::LE_32, {"\x00\x90\x00\x00\x12\x34\x56\x78", 8}, ""},
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{Arch::BE_64, Arch::BE_32, {"\x90\x00\x00\x00\x12\x34\x56\x78", 8}, ""}};
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// each invalid task should cause errors
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for (auto &task : invalid_tasks)
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EXPECT_EQ(
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Converter::convert(task.source.c_str(), result, task.src, task.dst), 0);
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}
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/**
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tests conversion of key buffer examples
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*/
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TEST_F(Converter_test, KeyDataConversion) {
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const std::vector<KeyData> keys = {
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{"Key1", "AES", "Module1", "Key1DataString"},
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{"Key2", "RSA", "Module2", "Key2DataStringLonger"},
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{"Key3", "DES", "Module3", "Key3DataStringLongest"}};
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const std::vector<Arch> order = {Arch::LE_32, Arch::BE_32, Arch::LE_64,
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Arch::BE_64};
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// generate keyring file representations
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std::map<Arch, std::string> files;
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for (auto const &arch : order)
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for (auto const &key : keys) files[arch] += key.serialize(arch);
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// verify conversions
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std::string result;
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for (auto const &arch1 : order)
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for (auto const &arch2 : order) {
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// at least one arch has to be native
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if (arch1 != Converter::get_native_arch() &&
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arch2 != Converter::get_native_arch())
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continue;
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// conversion has to be free of errors
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EXPECT_FALSE(Converter::convert_data(
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files[arch1].c_str(), files[arch1].length(), arch1, arch2, result));
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// conversion result has to match destination format
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EXPECT_EQ(result, files[arch2]);
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}
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}
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} // namespace keyring_converter_unittest
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