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|
// Copyright (C) 2018-2020 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <config.h>
#include <dhcpsrv/host_data_source_factory.h>
#include <dhcpsrv/cache_host_data_source.h>
#include <dhcpsrv/host_mgr.h>
#include <dhcpsrv/testutils/host_data_source_utils.h>
#include <dhcpsrv/testutils/memory_host_data_source.h>
#include <exceptions/exceptions.h>
#include <gtest/gtest.h>
#include <iostream>
#include <sstream>
using namespace std;
using namespace isc;
using namespace isc::asiolink;
using namespace isc::db;
using namespace isc::dhcp;
using namespace isc::dhcp::test;
namespace {
/// @brief Test dump cache class.
class TestHostCache : public MemHostDataSource, public CacheHostDataSource {
public:
/// Constructor
TestHostCache() : adds_(0), inserts_(0) { }
/// Destructor
virtual ~TestHostCache() { }
/// Override add
void add(const HostPtr& host) {
isc_throw(NotImplemented,
"add is not implemented: " << host->toText());
}
/// Insert
size_t insert(const ConstHostPtr& host, bool overwrite) {
if (overwrite) {
++inserts_;
} else {
++adds_;
}
HostPtr host_copy(new Host(*host));
store_.push_back(host_copy);
return (0);
}
/// Remove
bool remove(const HostPtr& host) {
for (auto h = store_.begin(); h != store_.end(); ++h) {
if (*h == host) {
store_.erase(h);
return (true);
}
}
return (false);
}
/// Flush
void flush(size_t) {
isc_throw(NotImplemented, "flush is not implemented");
}
/// Size
size_t size() const {
return (store_.size());
}
/// Capacity
size_t capacity() const {
return (0);
}
/// Type
string getType() const {
return ("cache");
}
/// Add counter
size_t adds_;
/// Insert counter
size_t inserts_;
};
/// @brief TestHostCache pointer type
typedef boost::shared_ptr<TestHostCache> TestHostCachePtr;
/// @brief Test data source class.
class TestHostDataSource : public MemHostDataSource {
public:
/// Destructor
virtual ~TestHostDataSource() { }
/// Type
string getType() const {
return ("test");
}
};
/// @brief TestHostDataSource pointer type
typedef boost::shared_ptr<TestHostDataSource> TestHostDataSourcePtr;
/// @brief Test fixture for testing cache feature.
class HostCacheTest : public ::testing::Test {
public:
/// @brief Constructor.
HostCacheTest() {
HostMgr::create();
// Host cache.
hcptr_.reset(new TestHostCache());
auto cacheFactory = [this](const DatabaseConnection::ParameterMap&) {
return (hcptr_);
};
HostDataSourceFactory::registerFactory("cache", cacheFactory);
HostMgr::addBackend("type=cache");
// Host data source.
memptr_.reset(new TestHostDataSource());
auto testFactory = [this](const DatabaseConnection::ParameterMap&) {
return (memptr_);
};
HostDataSourceFactory::registerFactory("test", testFactory);
HostMgr::addBackend("type=test");
}
/// @brief Destructor.
virtual ~HostCacheTest() {
HostDataSourceFactory::deregisterFactory("test");
HostDataSourceFactory::deregisterFactory("cache");
}
/// @brief Test host cache.
TestHostCachePtr hcptr_;
/// @brief Test host data source.
TestHostDataSourcePtr memptr_;
};
// Check basic cache feature for IPv4.
TEST_F(HostCacheTest, identifier4) {
// Check we have what we need.
ASSERT_TRUE(hcptr_);
EXPECT_TRUE(HostMgr::checkCacheBackend());
EXPECT_EQ(0, hcptr_->size());
EXPECT_EQ(0, hcptr_->inserts_);
ASSERT_TRUE(memptr_);
// Create a host reservation.
HostPtr host = HostDataSourceUtils::initializeHost4("192.0.2.1",
Host::IDENT_HWADDR);
ASSERT_TRUE(host); // Make sure the host is generated properly.
const IOAddress& address = host->getIPv4Reservation();
// Try to add it to the host data source.
ASSERT_NO_THROW(memptr_->add(host));
// Try to get it cached.
ConstHostPtr got = HostMgr::instance().get4(host->getIPv4SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
ASSERT_TRUE(got);
HostDataSourceUtils::compareHosts(got, host);
// Verify it was cached.
EXPECT_EQ(1, hcptr_->size());
EXPECT_EQ(1, hcptr_->inserts_);
// Remove it from test host data source.
EXPECT_TRUE(memptr_->del(host->getIPv4SubnetID(), address));
// It is cached so we can still get it.
got = HostMgr::instance().get4(host->getIPv4SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
ASSERT_TRUE(got);
HostDataSourceUtils::compareHosts(got, host);
// Even by address.
got = HostMgr::instance().get4(host->getIPv4SubnetID(), address);
ASSERT_TRUE(got);
HostDataSourceUtils::compareHosts(got, host);
// Verify cache status.
EXPECT_EQ(1, hcptr_->size());
EXPECT_EQ(1, hcptr_->inserts_);
}
// Check basic cache feature for IPv6.
TEST_F(HostCacheTest, identifier6) {
// Check we have what we need.
ASSERT_TRUE(hcptr_);
EXPECT_TRUE(HostMgr::checkCacheBackend());
EXPECT_EQ(0, hcptr_->size());
EXPECT_EQ(0, hcptr_->inserts_);
ASSERT_TRUE(memptr_);
// Create a host reservation.
HostPtr host = HostDataSourceUtils::initializeHost6("2001:db8::1",
Host::IDENT_DUID,
false);
ASSERT_TRUE(host); // Make sure the host is generated properly.
// Get the address.
IPv6ResrvRange resrvs = host->getIPv6Reservations();
ASSERT_EQ(1, std::distance(resrvs.first, resrvs.second));
const IOAddress& address = resrvs.first->second.getPrefix();
ASSERT_EQ("2001:db8::1", address.toText());
// Try to add it to the host data source.
ASSERT_NO_THROW(memptr_->add(host));
// Try to get it cached.
ConstHostPtr got = HostMgr::instance().get6(host->getIPv6SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
ASSERT_TRUE(got);
HostDataSourceUtils::compareHosts(got, host);
// Verify it was cached.
EXPECT_EQ(1, hcptr_->size());
EXPECT_EQ(1, hcptr_->inserts_);
// Remove it from test host data source.
EXPECT_TRUE(memptr_->del(host->getIPv6SubnetID(), address));
// It is cached so we can still get it.
got = HostMgr::instance().get6(host->getIPv6SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
ASSERT_TRUE(got);
HostDataSourceUtils::compareHosts(got, host);
// Even by address.
got = HostMgr::instance().get6(host->getIPv6SubnetID(), address);
ASSERT_TRUE(got);
HostDataSourceUtils::compareHosts(got, host);
// Verify cache status.
EXPECT_EQ(1, hcptr_->size());
EXPECT_EQ(1, hcptr_->inserts_);
}
// Check by address caching for IPv4.
TEST_F(HostCacheTest, address4) {
// Check we have what we need.
ASSERT_TRUE(hcptr_);
EXPECT_TRUE(HostMgr::checkCacheBackend());
EXPECT_EQ(0, hcptr_->size());
EXPECT_EQ(0, hcptr_->inserts_);
ASSERT_TRUE(memptr_);
// Create a host reservation.
HostPtr host = HostDataSourceUtils::initializeHost4("192.0.2.1",
Host::IDENT_HWADDR);
ASSERT_TRUE(host); // Make sure the host is generated properly.
const IOAddress& address = host->getIPv4Reservation();
// Try to add it to the host data source.
ASSERT_NO_THROW(memptr_->add(host));
// Try to get it cached.
ConstHostPtr got = HostMgr::instance().get4(host->getIPv4SubnetID(),
address);
ASSERT_TRUE(got);
HostDataSourceUtils::compareHosts(got, host);
// Verify it was cached.
EXPECT_EQ(1, hcptr_->size());
EXPECT_EQ(1, hcptr_->inserts_);
// Remove it from test host data source.
EXPECT_TRUE(memptr_->del(host->getIPv4SubnetID(), address));
// It is cached so we can still get it.
got = HostMgr::instance().get4(host->getIPv4SubnetID(), address);
ASSERT_TRUE(got);
HostDataSourceUtils::compareHosts(got, host);
// Even by identifier.
got = HostMgr::instance().get4(host->getIPv4SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
ASSERT_TRUE(got);
HostDataSourceUtils::compareHosts(got, host);
// Verify cache status.
EXPECT_EQ(1, hcptr_->size());
EXPECT_EQ(1, hcptr_->inserts_);
}
// Check by address caching for IPv6.
TEST_F(HostCacheTest, address6) {
// Check we have what we need.
ASSERT_TRUE(hcptr_);
EXPECT_TRUE(HostMgr::checkCacheBackend());
EXPECT_EQ(0, hcptr_->size());
EXPECT_EQ(0, hcptr_->inserts_);
ASSERT_TRUE(memptr_);
// Create a host reservation.
HostPtr host = HostDataSourceUtils::initializeHost6("2001:db8::1",
Host::IDENT_DUID,
false);
ASSERT_TRUE(host); // Make sure the host is generated properly.
// Get the address.
IPv6ResrvRange resrvs = host->getIPv6Reservations();
ASSERT_EQ(1, std::distance(resrvs.first, resrvs.second));
const IOAddress& address = resrvs.first->second.getPrefix();
ASSERT_EQ("2001:db8::1", address.toText());
// Try to add it to the host data source.
ASSERT_NO_THROW(memptr_->add(host));
// Try to get it cached.
ConstHostPtr got = HostMgr::instance().get6(host->getIPv6SubnetID(),
address);
ASSERT_TRUE(got);
HostDataSourceUtils::compareHosts(got, host);
// Verify it was cached.
EXPECT_EQ(1, hcptr_->size());
EXPECT_EQ(1, hcptr_->inserts_);
// Remove it from test host data source.
EXPECT_TRUE(memptr_->del(host->getIPv6SubnetID(), address));
// It is cached so we can still get it.
got = HostMgr::instance().get6(host->getIPv6SubnetID(), address);
ASSERT_TRUE(got);
HostDataSourceUtils::compareHosts(got, host);
// Even by identifier.
got = HostMgr::instance().get6(host->getIPv6SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
ASSERT_TRUE(got);
HostDataSourceUtils::compareHosts(got, host);
// Verify cache status.
EXPECT_EQ(1, hcptr_->size());
EXPECT_EQ(1, hcptr_->inserts_);
}
// Check negative cache feature for IPv4.
TEST_F(HostCacheTest, negativeIdentifier4) {
// Check we have what we need.
ASSERT_TRUE(hcptr_);
EXPECT_TRUE(HostMgr::checkCacheBackend());
EXPECT_EQ(0, hcptr_->size());
EXPECT_EQ(0, hcptr_->adds_);
ASSERT_TRUE(memptr_);
ASSERT_FALSE(HostMgr::instance().getNegativeCaching());
// Create a host reservation.
// We will not add it anywhere, just will use its values.
HostPtr host = HostDataSourceUtils::initializeHost4("192.0.2.1", Host::IDENT_HWADDR);
ASSERT_TRUE(host);
// Try to get it cached.
ConstHostPtr got = HostMgr::instance().get4(host->getIPv4SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
ASSERT_FALSE(got);
// Again to be sure it was not negatively cached.
got = HostMgr::instance().get4Any(host->getIPv4SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
ASSERT_FALSE(got);
// Enable negative caching.
HostMgr::instance().setNegativeCaching(true);
ASSERT_TRUE(HostMgr::instance().getNegativeCaching());
// Try it again. There is no such host, but this time negative cache is enabled,
// so this negative response will be added to the cache.
got = HostMgr::instance().get4(host->getIPv4SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
ASSERT_FALSE(got);
EXPECT_EQ(1, hcptr_->size());
EXPECT_EQ(1, hcptr_->adds_);
got = HostMgr::instance().get4Any(host->getIPv4SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
ASSERT_TRUE(got);
EXPECT_TRUE(got->getNegative());
// Look at inside the negative cached value.
EXPECT_EQ(host->getIPv4SubnetID(), got->getIPv4SubnetID());
EXPECT_EQ(host->getIdentifierType(), got->getIdentifierType());
ASSERT_EQ(host->getIdentifier().size(), got->getIdentifier().size());
EXPECT_EQ(0, memcmp(&host->getIdentifier()[0],
&got->getIdentifier()[0],
host->getIdentifier().size()));
EXPECT_EQ("0.0.0.0", got->getIPv4Reservation().toText());
// get4() (vs get4Any()) does not return negative cached values.
got = HostMgr::instance().get4(host->getIPv4SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
EXPECT_FALSE(got);
// Verify cache status.
EXPECT_EQ(1, hcptr_->size());
EXPECT_EQ(1, hcptr_->adds_);
EXPECT_EQ(0, hcptr_->inserts_);
// We can verify other overloads of get4() but the hwaddr/duid is
// not implemented by the memory test backend and the negative cache
// entry has no IP reservation when inserted by the host manager.
}
// Check negative cache feature for IPv6.
TEST_F(HostCacheTest, negativeIdentifier6) {
// Check we have what we need.
ASSERT_TRUE(hcptr_);
EXPECT_TRUE(HostMgr::checkCacheBackend());
EXPECT_EQ(0, hcptr_->size());
EXPECT_EQ(0, hcptr_->adds_);
ASSERT_TRUE(memptr_);
// Create a host reservation.
// We will not add it anywhere, just will use its values.
HostPtr host = HostDataSourceUtils::initializeHost6("2001:db8::1",
Host::IDENT_DUID,
false);
ASSERT_TRUE(host); // Make sure the host is generated properly.
// Do not add it to the host data source.
// Try to get it cached.
ConstHostPtr got = HostMgr::instance().get6(host->getIPv6SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
ASSERT_FALSE(got);
// Again to be sure it was not negatively cached.
got = HostMgr::instance().get6Any(host->getIPv6SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
ASSERT_FALSE(got);
// Enable negative caching.
HostMgr::instance().setNegativeCaching(true);
ASSERT_TRUE(HostMgr::instance().getNegativeCaching());
// Try it but it will be cached only when get6 (vs get6Any) is called.
got = HostMgr::instance().get6Any(host->getIPv6SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
ASSERT_FALSE(got);
EXPECT_EQ(0, hcptr_->size());
EXPECT_EQ(0, hcptr_->adds_);
got = HostMgr::instance().get6(host->getIPv6SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
ASSERT_FALSE(got);
// There is a negative cached value now.
EXPECT_EQ(1, hcptr_->size());
EXPECT_EQ(1, hcptr_->adds_);
got = HostMgr::instance().get6Any(host->getIPv6SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
ASSERT_TRUE(got);
EXPECT_TRUE(got->getNegative());
// Look at inside the negative cached value.
EXPECT_EQ(host->getIPv6SubnetID(), got->getIPv6SubnetID());
EXPECT_EQ(host->getIdentifierType(), got->getIdentifierType());
ASSERT_EQ(host->getIdentifier().size(), got->getIdentifier().size());
EXPECT_EQ(0, memcmp(&host->getIdentifier()[0],
&got->getIdentifier()[0],
host->getIdentifier().size()));
EXPECT_FALSE(got->hasIPv6Reservation());
// get6() (vs get6Any()) does not return negative cached values.
got = HostMgr::instance().get6(host->getIPv6SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size());
EXPECT_FALSE(got);
// Verify cache status.
EXPECT_EQ(1, hcptr_->size());
EXPECT_EQ(1, hcptr_->adds_);
EXPECT_EQ(0, hcptr_->inserts_);
// No other tests, cf negativeIdentifier4 end comment.
}
// Check that negative caching by address is not done for IPv4.
TEST_F(HostCacheTest, negativeAddress4) {
// Check we have what we need.
ASSERT_TRUE(hcptr_);
EXPECT_TRUE(HostMgr::checkCacheBackend());
EXPECT_EQ(0, hcptr_->size());
EXPECT_EQ(0, hcptr_->adds_);
ASSERT_TRUE(memptr_);
// Create a host reservation.
// We will not add it anywhere, just will use its values.
HostPtr host = HostDataSourceUtils::initializeHost4("192.0.2.1",
Host::IDENT_HWADDR);
ASSERT_TRUE(host); // Make sure the host is generated properly.
const IOAddress& address = host->getIPv4Reservation();
// Do not add it to the host data source.
// Enable negative caching.
HostMgr::instance().setNegativeCaching(true);
ASSERT_TRUE(HostMgr::instance().getNegativeCaching());
// Try to get it in negative cache.
ConstHostPtr got = HostMgr::instance().get4(host->getIPv4SubnetID(),
address);
ASSERT_FALSE(got);
EXPECT_EQ(0, hcptr_->size());
EXPECT_EQ(0, hcptr_->adds_);
}
// Check that negative caching by address is not done for IPv6.
TEST_F(HostCacheTest, negativeAddress6) {
// Check we have what we need.
ASSERT_TRUE(hcptr_);
EXPECT_TRUE(HostMgr::checkCacheBackend());
EXPECT_EQ(0, hcptr_->size());
EXPECT_EQ(0, hcptr_->adds_);
ASSERT_TRUE(memptr_);
// Create a host reservation.
// We will not add it anywhere, just will use its values.
HostPtr host = HostDataSourceUtils::initializeHost6("2001:db8::1",
Host::IDENT_DUID,
false);
ASSERT_TRUE(host); // Make sure the host is generated properly.
// Get the address.
IPv6ResrvRange resrvs = host->getIPv6Reservations();
ASSERT_EQ(1, std::distance(resrvs.first, resrvs.second));
const IOAddress& address = resrvs.first->second.getPrefix();
ASSERT_EQ("2001:db8::1", address.toText());
// Do not add it to the host data source.
// Enable negative caching.
HostMgr::instance().setNegativeCaching(true);
ASSERT_TRUE(HostMgr::instance().getNegativeCaching());
// Try to get it in negative cache.
ConstHostPtr got = HostMgr::instance().get6(host->getIPv6SubnetID(),
address);
ASSERT_FALSE(got);
EXPECT_EQ(0, hcptr_->size());
EXPECT_EQ(0, hcptr_->adds_);
}
/// @brief Test one backend class.
///
/// This class has one entry which is returned to any lookup.
class TestOneBackend : public BaseHostDataSource {
public:
/// Constructor
TestOneBackend() : value_() { }
/// Destructor
virtual ~TestOneBackend() { }
ConstHostCollection getAll(const Host::IdentifierType&, const uint8_t*,
const size_t) const {
return (getCollection());
}
ConstHostCollection getAll4(const SubnetID&) const {
return (getCollection());
}
ConstHostCollection getAll6(const SubnetID&) const {
return (getCollection());
}
ConstHostCollection getAllbyHostname(const std::string&) const {
return (getCollection());
}
ConstHostCollection getAllbyHostname4(const std::string&,
const SubnetID&) const {
return (getCollection());
}
ConstHostCollection getAllbyHostname6(const std::string&,
const SubnetID&) const {
return (getCollection());
}
ConstHostCollection getPage4(const SubnetID&, size_t&, uint64_t,
const HostPageSize&) const {
return (getCollection());
}
ConstHostCollection getPage6(const SubnetID&, size_t&, uint64_t,
const HostPageSize&) const {
return (getCollection());
}
ConstHostCollection getPage4(size_t&, uint64_t,
const HostPageSize&) const {
return (getCollection());
}
ConstHostCollection getPage6(size_t&, uint64_t,
const HostPageSize&) const {
return (getCollection());
}
ConstHostCollection getAll4(const IOAddress&) const {
return (getCollection());
}
ConstHostPtr get4(const SubnetID&, const Host::IdentifierType&,
const uint8_t*, const size_t) const {
return (getOne());
}
ConstHostPtr get4(const SubnetID&, const IOAddress&) const {
return (getOne());
}
ConstHostCollection
getAll4(const SubnetID&, const asiolink::IOAddress&) const {
return (getCollection());
}
ConstHostPtr get6(const SubnetID&, const Host::IdentifierType&,
const uint8_t*, const size_t) const {
return (getOne());
}
ConstHostPtr get6(const IOAddress&, const uint8_t) const {
return (getOne());
}
ConstHostPtr get6(const SubnetID&, const IOAddress&) const {
return (getOne());
}
ConstHostCollection
getAll6(const SubnetID&, const IOAddress&) const {
return (getCollection());
}
void add(const HostPtr&) {
}
bool del(const SubnetID&, const IOAddress&) {
return (false);
}
bool del4(const SubnetID&, const Host::IdentifierType&,
const uint8_t*, const size_t) {
return (false);
}
bool del6(const SubnetID&, const Host::IdentifierType&,
const uint8_t*, const size_t) {
return (false);
}
std::string getType() const {
return ("one");
}
bool setIPReservationsUnique(const bool) {
return (true);
}
/// Specific methods
/// @brief Set the entry
void setValue(const HostPtr& value) {
value_ = value;
}
protected:
/// @brief Return collection
ConstHostCollection getCollection() const {
ConstHostCollection hosts;
hosts.push_back(value_);
return (hosts);
}
/// @brief Return one entry
ConstHostPtr getOne() const {
return(value_);
}
/// #brief The value
HostPtr value_;
};
/// @brief TestOneBackend pointer type
typedef boost::shared_ptr<TestOneBackend> TestOneBackendPtr;
/// @brief Test no cache class.
///
/// This class looks like a cache but throws when insert() is called.
class TestNoCache : public MemHostDataSource, public CacheHostDataSource {
public:
/// Destructor
virtual ~TestNoCache() { }
/// Override add
void add(const HostPtr& host) {
isc_throw(NotImplemented,
"add is not implemented: " << host->toText());
}
/// Insert throws
size_t insert(const ConstHostPtr& host, bool overwrite) {
isc_throw(NotImplemented,
"insert is not implemented: " << host->toText()
<< " with overwrite: " << overwrite);
}
/// Remove throws
bool remove(const HostPtr& host) {
isc_throw(NotImplemented,
"remove is not implemented: " << host->toText());
}
/// Flush
void flush(size_t) {
isc_throw(NotImplemented, "flush is not implemented");
}
/// Size
size_t size() const {
return (0);
}
/// Capacity
size_t capacity() const {
return (0);
}
/// Type
string getType() const {
return ("nocache");
}
};
/// @brief TestNoCache pointer type
typedef boost::shared_ptr<TestNoCache> TestNoCachePtr;
/// @brief Test fixture for testing generic negative cache handling.
class NegativeCacheTest : public ::testing::Test {
public:
/// @brief Constructor.
NegativeCacheTest() {
HostMgr::create();
// No cache.
ncptr_.reset(new TestNoCache());
auto nocacheFactory = [this](const DatabaseConnection::ParameterMap&) {
return (ncptr_);
};
HostDataSourceFactory::registerFactory("nocache", nocacheFactory);
HostMgr::addBackend("type=nocache");
// One backend.
obptr_.reset(new TestOneBackend());
auto oneFactory = [this](const DatabaseConnection::ParameterMap&) {
return (obptr_);
};
HostDataSourceFactory::registerFactory("one", oneFactory);
HostMgr::addBackend("type=one");
}
/// @brief Destructor.
virtual ~NegativeCacheTest() {
HostDataSourceFactory::deregisterFactory("one");
HostDataSourceFactory::deregisterFactory("nocache");
}
/// @brief Test one backend.
TestOneBackendPtr obptr_;
/// @brief Test no cache.
TestNoCachePtr ncptr_;
/// Test methods
/// @brief Set negative caching.
void setNegativeCaching() {
ASSERT_TRUE(HostMgr::instance().checkCacheBackend());
ASSERT_FALSE(HostMgr::instance().getNegativeCaching());
HostMgr::instance().setNegativeCaching(true);
ASSERT_TRUE(HostMgr::instance().getNegativeCaching());
}
void testGetAll();
void testGet4();
void testGet6();
};
/// Verify that getAll* methods ignore negative caching.
void NegativeCacheTest::testGetAll() {
// Create a host reservation.
HostPtr host = HostDataSourceUtils::initializeHost4("192.0.2.1",
Host::IDENT_HWADDR);
ASSERT_TRUE(host);
ASSERT_TRUE(host->getHWAddress());
ASSERT_EQ("192.0.2.1", host->getIPv4Reservation().toText());
// Make it a negative cached entry.
host->setNegative(true);
ASSERT_TRUE(host->getNegative());
// Set the backend with it.
obptr_->setValue(host);
// Verifies getAll* return a collection with it.
ConstHostCollection hosts;
ASSERT_NO_THROW(hosts =
HostMgr::instance().getAll(host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size()));
ASSERT_EQ(1, hosts.size());
EXPECT_EQ(host, hosts[0]);
ASSERT_NO_THROW(hosts =
HostMgr::instance().getAll4(host->getIPv4Reservation()));
ASSERT_EQ(1, hosts.size());
EXPECT_EQ(host, hosts[0]);
}
/// Verify that get4* methods handle negative caching.
void NegativeCacheTest::testGet4() {
// Create a host reservation.
HostPtr host = HostDataSourceUtils::initializeHost4("192.0.2.1",
Host::IDENT_HWADDR);
ASSERT_TRUE(host);
ASSERT_TRUE(host->getHWAddress());
ASSERT_EQ("192.0.2.1", host->getIPv4Reservation().toText());
// Make it a negative cached entry.
host->setNegative(true);
ASSERT_TRUE(host->getNegative());
// Set the backend with it.
obptr_->setValue(host);
// Verifies get4 overloads return a null pointer.
ConstHostPtr got;
ASSERT_NO_THROW(got =
HostMgr::instance().get4(host->getIPv4SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size()));
EXPECT_FALSE(got);
ASSERT_NO_THROW(got =
HostMgr::instance().get4(host->getIPv4SubnetID(),
host->getIPv4Reservation()));
EXPECT_FALSE(got);
// Only getAny returns the negative cached entry.
ASSERT_NO_THROW(got =
HostMgr::instance().get4Any(host->getIPv4SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size()));
EXPECT_TRUE(got);
EXPECT_EQ(host, got);
}
/// Verify that get6* methods handle negative caching.
void NegativeCacheTest::testGet6() {
// Create a host reservation.
HostPtr host = HostDataSourceUtils::initializeHost6("2001:db8::1",
Host::IDENT_DUID,
false);
ASSERT_TRUE(host);
ASSERT_TRUE(host->getDuid());
// Get the address.
IPv6ResrvRange resrvs = host->getIPv6Reservations();
ASSERT_EQ(1, std::distance(resrvs.first, resrvs.second));
const IOAddress& address = resrvs.first->second.getPrefix();
ASSERT_EQ("2001:db8::1", address.toText());
// Make it a negative cached entry.
host->setNegative(true);
ASSERT_TRUE(host->getNegative());
// Set the backend with it.
obptr_->setValue(host);
// Verifies get6 overloads return a null pointer.
ConstHostPtr got;
ASSERT_NO_THROW(got =
HostMgr::instance().get6(host->getIPv6SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size()));
EXPECT_FALSE(got);
ASSERT_NO_THROW(got = HostMgr::instance().get6(address, 128));
EXPECT_FALSE(got);
ASSERT_NO_THROW(got =
HostMgr::instance().get6(host->getIPv6SubnetID(),
address));
EXPECT_FALSE(got);
// Only getAny returns the negative cached entry.
ASSERT_NO_THROW(got =
HostMgr::instance().get6Any(host->getIPv6SubnetID(),
host->getIdentifierType(),
&host->getIdentifier()[0],
host->getIdentifier().size()));
EXPECT_TRUE(got);
EXPECT_EQ(host, got);
}
/// Verify that getAll* methods ignore negative caching.
TEST_F(NegativeCacheTest, getAll) {
testGetAll();
}
/// Verify that get4* methods handle negative caching.
TEST_F(NegativeCacheTest, get4) {
testGet4();
}
/// Verify that get6* methods handle negative caching.
TEST_F(NegativeCacheTest, get6) {
testGet6();
}
/// Verify that getAll* methods behavior does not change with
/// host manager negative caching.
TEST_F(NegativeCacheTest, getAllwithNegativeCaching) {
setNegativeCaching();
testGetAll();
}
/// Verify that get4* methods behavior does not change with
/// host manager negative caching.
TEST_F(NegativeCacheTest, get4withNegativeCaching) {
setNegativeCaching();
testGet4();
}
/// Verify that get6* methods behavior does not change with
/// host manager negative caching.
TEST_F(NegativeCacheTest, get6withNegativeCaching) {
setNegativeCaching();
testGet6();
}
}; // end of anonymous namespace
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