blob: 8875cce349a775bd2c71bcbbcc479affb19ba43e [file] [log] [blame]
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2013-2022 Regents of the University of California.
*
* This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
*
* ndn-cxx library is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* ndn-cxx library 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 Lesser General Public License for more details.
*
* You should have received copies of the GNU General Public License and GNU Lesser
* General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
* <http://www.gnu.org/licenses/>.
*
* See AUTHORS.md for complete list of ndn-cxx authors and contributors.
*/
#include "ndn-cxx/util/random.hpp"
#include "ndn-cxx/security/impl/openssl.hpp"
#include "tests/boost-test.hpp"
#include <array>
#include <thread>
namespace ndn {
namespace tests {
BOOST_AUTO_TEST_SUITE(Util)
BOOST_AUTO_TEST_SUITE(TestRandom)
BOOST_AUTO_TEST_CASE(ThreadLocalEngine)
{
random::RandomNumberEngine* r1 = &random::getRandomNumberEngine();
random::RandomNumberEngine* r2 = nullptr;
std::thread t([&r2] { r2 = &random::getRandomNumberEngine(); });
t.join();
random::RandomNumberEngine* r3 = &random::getRandomNumberEngine();
BOOST_CHECK(r2 != nullptr);
BOOST_CHECK_NE(r1, r2);
BOOST_CHECK_EQUAL(r1, r3);
}
// RAND_get_rand_method() and RAND_set_rand_method() are deprecated in OpenSSL 3.0
// and there is no straightforward replacement. Suppress the warnings for now, but
// we may have to drop this test case when OpenSSL removes the RAND_METHOD API.
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#endif
// This fixture uses OpenSSL routines to set a dummy random generator that always fails
class FailRandMethodFixture
{
public:
FailRandMethodFixture()
: m_dummyRandMethod{&FailRandMethodFixture::seed,
&FailRandMethodFixture::bytes,
&FailRandMethodFixture::cleanup,
&FailRandMethodFixture::add,
&FailRandMethodFixture::pseudorand,
&FailRandMethodFixture::status}
{
m_origRandMethod = RAND_get_rand_method();
RAND_set_rand_method(&m_dummyRandMethod);
}
~FailRandMethodFixture()
{
RAND_set_rand_method(m_origRandMethod);
}
private: // RAND_METHOD callbacks
static int
seed(const void* buf, int num)
{
return 0;
}
static int
bytes(unsigned char* buf, int num)
{
return 0;
}
static void
cleanup()
{
}
static int
add(const void* buf, int num, double entropy)
{
return 0;
}
static int
pseudorand(unsigned char* buf, int num)
{
return 0;
}
static int
status()
{
return 0;
}
private:
const RAND_METHOD* m_origRandMethod;
RAND_METHOD m_dummyRandMethod;
};
BOOST_FIXTURE_TEST_CASE(Error, FailRandMethodFixture)
{
std::array<uint8_t, 512> buf;
BOOST_CHECK_THROW(random::generateSecureBytes(buf), std::runtime_error);
}
BOOST_AUTO_TEST_SUITE_END() // TestRandom
BOOST_AUTO_TEST_SUITE_END() // Util
} // namespace tests
} // namespace ndn