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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/repl/isself.h"
#include "mongo/db/server_options.h"
#include "mongo/db/service_context.h"
#include "mongo/db/service_context_test_fixture.h"
#include "mongo/unittest/unittest.h"
#include "mongo/util/net/hostandport.h"
#include "mongo/util/net/socket_utils.h"
#include "mongo/util/scopeguard.h"
namespace mongo {
namespace repl {
namespace {
using std::string;
TEST_F(ServiceContextTest, DetectsSameHostIPv4) {
#if defined(_WIN32) || defined(__linux__) || defined(__APPLE__)
bool wasEnabled = IPv6Enabled();
enableIPv6(false);
ON_BLOCK_EXIT([&] { enableIPv6(wasEnabled); });
// first we get the addrs bound on this host
const std::vector<std::string> addrs = getBoundAddrs(false);
// Fastpath should agree with the result of getBoundAddrs
// since it uses it...
for (std::vector<string>::const_iterator it = addrs.begin(); it != addrs.end(); ++it) {
ASSERT(isSelfFastPath(HostAndPort(*it, serverGlobalParams.port)));
ASSERT(isSelf(HostAndPort(*it, serverGlobalParams.port), getGlobalServiceContext()));
}
#else
ASSERT(true);
#endif
}
TEST_F(ServiceContextTest, DetectsSameHostIPv6) {
#if defined(_WIN32) || defined(__linux__) || defined(__APPLE__)
bool wasEnabled = IPv6Enabled();
enableIPv6(true);
ON_BLOCK_EXIT([&] { enableIPv6(wasEnabled); });
// first we get the addrs bound on this host
const std::vector<std::string> addrs = getBoundAddrs(true);
// Fastpath should agree with the result of getBoundAddrs
// since it uses it...
for (std::vector<string>::const_iterator it = addrs.begin(); it != addrs.end(); ++it) {
ASSERT(isSelfFastPath(HostAndPort(*it, serverGlobalParams.port)));
ASSERT(isSelf(HostAndPort(*it, serverGlobalParams.port), getGlobalServiceContext()));
}
#else
ASSERT(true);
#endif
}
TEST_F(ServiceContextTest, RetryOnTransientDNSErrorsInFastPathEnoughAttempts) {
#if defined(_WIN32) || defined(__linux__) || defined(__APPLE__)
bool wasEnabled = IPv6Enabled();
enableIPv6(true);
ON_BLOCK_EXIT([&] { enableIPv6(wasEnabled); });
// First we get the addrs bound on this host
const std::vector<std::string> addrs = getBoundAddrs(true);
auto failResolution = globalFailPointRegistry().find("transientDNSErrorInFastPath");
failResolution->setMode(FailPoint::nTimes, 3);
// Fastpath should agree with the result of getBoundAddrs and should be able to resolve
// the addresses even with the (transient) failures.
for (std::vector<string>::const_iterator it = addrs.begin(); it != addrs.end(); ++it) {
ASSERT(isSelfFastPath(HostAndPort(*it, serverGlobalParams.port)));
}
#else
ASSERT(true);
#endif
}
TEST_F(ServiceContextTest, RetryOnTransientDNSErrorsInFastPathAttemptsExhausted) {
#if defined(_WIN32) || defined(__linux__) || defined(__APPLE__)
bool wasEnabled = IPv6Enabled();
enableIPv6(true);
ON_BLOCK_EXIT([&] { enableIPv6(wasEnabled); });
// First we get the addrs bound on this host
const std::vector<std::string> addrs = getBoundAddrs(true);
auto failResolution = globalFailPointRegistry().find("transientDNSErrorInFastPath");
failResolution->setMode(FailPoint::nTimes, 5 * addrs.size());
// Fastpath should not be able to resolve any of the addresses.
for (std::vector<string>::const_iterator it = addrs.begin(); it != addrs.end(); ++it) {
ASSERT_FALSE(isSelfFastPath(HostAndPort(*it, serverGlobalParams.port)));
}
#else
ASSERT(true);
#endif
}
} // namespace
} // namespace repl
} // namespace mongo
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