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// Copyright (C) 2014-2023 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 <cc/data.h>
#include <dhcp/classify.h>
#include <dhcp/libdhcp++.h>
#include <dhcp/option_custom.h>
#include <dhcp/option_definition.h>
#include <dhcp/option_space.h>
#include <dhcp/option_string.h>
#include <dhcp/tests/iface_mgr_test_config.h>
#include <dhcpsrv/cfgmgr.h>
#include <dhcpsrv/lease_mgr_factory.h>
#include <dhcpsrv/parsers/dhcp_parsers.h>
#include <dhcpsrv/cfg_shared_networks.h>
#include <dhcpsrv/cfg_subnets4.h>
#include <dhcpsrv/iterative_allocator.h>
#include <dhcpsrv/shared_network.h>
#include <dhcpsrv/subnet.h>
#include <dhcpsrv/subnet_id.h>
#include <dhcpsrv/subnet_selector.h>
#include <dhcpsrv/cfg_hosts.h>
#include <stats/stats_mgr.h>
#include <testutils/gtest_utils.h>
#include <testutils/log_utils.h>
#include <testutils/test_to_element.h>
#include <util/doubles.h>
#include <gtest/gtest.h>
#include <vector>
using namespace isc;
using namespace isc::asiolink;
using namespace isc::data;
using namespace isc::dhcp;
using namespace isc::dhcp::test;
using namespace isc::stats;
using namespace isc::test;
using namespace isc::util;
namespace {
/// @brief An allocator recording calls to @c initAfterConfigure.
class InitRecordingAllocator : public IterativeAllocator {
public:
/// @brief Constructor.
///
/// @param type specifies the type of allocated leases.
/// @param subnet weak pointer to the subnet owning the allocator.
InitRecordingAllocator(Lease::Type type, const WeakSubnetPtr& subnet)
: IterativeAllocator(type, subnet), callcount_(0) {
}
/// @brief Increases the call count of this function.
///
/// The call count can be later examined to check whether or not
/// the function was called.
virtual void initAfterConfigureInternal() {
++callcount_;
};
/// @brief Call count of the @c initAllocatorsAfterConfigure.
int callcount_;
};
/// @brief Verifies that a set of subnets contains a given a subnet
///
/// @param cfg_subnets set of subnets in which to look
/// @param prefix prefix of the target subnet
/// @param exp_subnet_id expected id of the target subnet
/// @param exp_valid expected valid lifetime of the subnet
/// @param exp_network pointer to the subnet's shared-network (if one)
void checkMergedSubnet(CfgSubnets4& cfg_subnets,
const std::string& prefix,
const SubnetID exp_subnet_id,
int exp_valid,
SharedNetwork4Ptr exp_network) {
// Look for the network by prefix.
auto subnet = cfg_subnets.getByPrefix(prefix);
ASSERT_TRUE(subnet) << "subnet: " << prefix << " not found";
// Make sure we have the one we expect.
ASSERT_EQ(exp_subnet_id, subnet->getID()) << "subnet ID is wrong";
ASSERT_EQ(exp_valid, subnet->getValid().get()) << "subnet valid time is wrong";
SharedNetwork4Ptr shared_network;
subnet->getSharedNetwork(shared_network);
if (exp_network) {
ASSERT_TRUE(shared_network)
<< " expected network: " << exp_network->getName() << " not found";
ASSERT_TRUE(shared_network == exp_network) << " networks do no match";
} else {
ASSERT_FALSE(shared_network) << " unexpected network assignment: "
<< shared_network->getName();
}
}
// This test verifies that specific subnet can be retrieved by specifying
// subnet identifier or subnet prefix.
TEST(CfgSubnets4Test, getSpecificSubnet) {
CfgSubnets4 cfg;
// Create 3 subnets.
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"),
26, 1, 2, 3, SubnetID(5)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"),
26, 1, 2, 3, SubnetID(8)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"),
26, 1, 2, 3, SubnetID(10)));
// Store the subnets in a vector to make it possible to loop over
// all configured subnets.
std::vector<Subnet4Ptr> subnets;
subnets.push_back(subnet1);
subnets.push_back(subnet2);
subnets.push_back(subnet3);
// Add all subnets to the configuration.
for (auto subnet = subnets.cbegin(); subnet != subnets.cend(); ++subnet) {
ASSERT_NO_THROW(cfg.add(*subnet)) << "failed to add subnet with id: "
<< (*subnet)->getID();
}
// Iterate over all subnets and make sure they can be retrieved by
// subnet identifier.
for (auto subnet = subnets.rbegin(); subnet != subnets.rend(); ++subnet) {
ConstSubnet4Ptr subnet_returned = cfg.getBySubnetId((*subnet)->getID());
ASSERT_TRUE(subnet_returned) << "failed to return subnet with id: "
<< (*subnet)->getID();
EXPECT_EQ((*subnet)->getID(), subnet_returned->getID());
EXPECT_EQ((*subnet)->toText(), subnet_returned->toText());
}
// Repeat the previous test, but this time retrieve subnets by their
// prefixes.
for (auto subnet = subnets.rbegin(); subnet != subnets.rend(); ++subnet) {
ConstSubnet4Ptr subnet_returned = cfg.getByPrefix((*subnet)->toText());
ASSERT_TRUE(subnet_returned) << "failed to return subnet with id: "
<< (*subnet)->getID();
EXPECT_EQ((*subnet)->getID(), subnet_returned->getID());
EXPECT_EQ((*subnet)->toText(), subnet_returned->toText());
}
// Make sure that null pointers are returned for non-existing subnets.
EXPECT_FALSE(cfg.getBySubnetId(SubnetID(123)));
EXPECT_FALSE(cfg.getByPrefix("10.20.30.0/29"));
}
// This test verifies that a single subnet can be removed from the configuration.
TEST(CfgSubnets4Test, deleteSubnet) {
CfgSubnets4 cfg;
// Create 3 subnets.
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"),
26, 1, 2, 3, SubnetID(5)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.3.0"),
26, 1, 2, 3, SubnetID(8)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.4.0"),
26, 1, 2, 3, SubnetID(10)));
ASSERT_NO_THROW(cfg.add(subnet1));
ASSERT_NO_THROW(cfg.add(subnet2));
ASSERT_NO_THROW(cfg.add(subnet3));
// There should be three subnets.
ASSERT_EQ(3, cfg.getAll()->size());
// We're going to remove the subnet #2. Let's make sure it exists before
// we remove it.
ASSERT_TRUE(cfg.getByPrefix("192.0.3.0/26"));
// Remove the subnet and make sure it is gone.
ASSERT_NO_THROW(cfg.del(subnet2));
ASSERT_EQ(2, cfg.getAll()->size());
EXPECT_FALSE(cfg.getByPrefix("192.0.3.0/26"));
// Remove another subnet by ID.
ASSERT_NO_THROW(cfg.del(subnet1->getID()));
ASSERT_EQ(1, cfg.getAll()->size());
EXPECT_FALSE(cfg.getByPrefix("192.0.2.0/26"));
}
// This test verifies that replace a subnet works as expected.
TEST(CfgSubnets4Test, replaceSubnet) {
CfgSubnets4 cfg;
// Create 3 subnets.
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.1.0"),
26, 1, 2, 100, SubnetID(10)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.0"),
26, 1, 2, 100, SubnetID(2)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.3.0"),
26, 1, 2, 100, SubnetID(13)));
ASSERT_NO_THROW(cfg.add(subnet1));
ASSERT_NO_THROW(cfg.add(subnet2));
ASSERT_NO_THROW(cfg.add(subnet3));
// There should be three subnets.
ASSERT_EQ(3, cfg.getAll()->size());
// We're going to replace the subnet #2. Let's make sure it exists before
// we replace it.
ASSERT_TRUE(cfg.getByPrefix("192.0.3.0/26"));
// Replace the subnet and make sure it was updated.
Subnet4Ptr subnet(new Subnet4(IOAddress("192.0.2.0"),
26, 10, 20, 1000, SubnetID(2)));
Subnet4Ptr replaced = cfg.replace(subnet);
ASSERT_TRUE(replaced);
EXPECT_TRUE(replaced == subnet2);
ASSERT_EQ(3, cfg.getAll()->size());
Subnet4Ptr returned = cfg.getSubnet(SubnetID(2));
ASSERT_TRUE(returned);
EXPECT_TRUE(returned == subnet);
// Restore.
replaced = cfg.replace(replaced);
ASSERT_TRUE(replaced);
EXPECT_TRUE(replaced == subnet);
ASSERT_EQ(3, cfg.getAll()->size());
returned = cfg.getSubnet(SubnetID(2));
ASSERT_TRUE(returned);
EXPECT_TRUE(returned == subnet2);
// Prefix conflict returns null.
subnet.reset(new Subnet4(IOAddress("192.0.3.0"),
26, 10, 20, 1000, SubnetID(2)));
replaced = cfg.replace(subnet);
EXPECT_FALSE(replaced);
returned = cfg.getSubnet(SubnetID(2));
ASSERT_TRUE(returned);
EXPECT_TRUE(returned == subnet2);
// Changing prefix works even it is highly not recommended.
subnet.reset(new Subnet4(IOAddress("192.0.10.0"),
26, 10, 20, 1000, SubnetID(2)));
replaced = cfg.replace(subnet);
ASSERT_TRUE(replaced);
EXPECT_TRUE(replaced == subnet2);
returned = cfg.getSubnet(SubnetID(2));
ASSERT_TRUE(returned);
EXPECT_TRUE(returned == subnet);
}
// This test verifies that subnets configuration is properly merged.
TEST(CfgSubnets4Test, mergeSubnets) {
// Create custom options dictionary for testing merge. We're keeping it
// simple because they are more rigorous tests elsewhere.
CfgOptionDefPtr cfg_def(new CfgOptionDef());
cfg_def->add((OptionDefinitionPtr(new OptionDefinition("one", 1, "isc", "string"))));
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.1.0"),
26, 1, 2, 100, SubnetID(1)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.0"),
26, 1, 2, 100, SubnetID(2)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.3.0"),
26, 1, 2, 100, SubnetID(3)));
Subnet4Ptr subnet4(new Subnet4(IOAddress("192.0.4.0"),
26, 1, 2, 100, SubnetID(4)));
// Create the "existing" list of shared networks
CfgSharedNetworks4Ptr networks(new CfgSharedNetworks4());
SharedNetwork4Ptr shared_network1(new SharedNetwork4("shared-network1"));
networks->add(shared_network1);
SharedNetwork4Ptr shared_network2(new SharedNetwork4("shared-network2"));
networks->add(shared_network2);
// Empty network pointer.
SharedNetwork4Ptr no_network;
// Add Subnets 1, 2 and 4 to shared networks.
ASSERT_NO_THROW(shared_network1->add(subnet1));
ASSERT_NO_THROW(shared_network2->add(subnet2));
ASSERT_NO_THROW(shared_network2->add(subnet4));
// Create our "existing" configured subnets.
CfgSubnets4 cfg_to;
ASSERT_NO_THROW(cfg_to.add(subnet1));
ASSERT_NO_THROW(cfg_to.add(subnet2));
ASSERT_NO_THROW(cfg_to.add(subnet3));
ASSERT_NO_THROW(cfg_to.add(subnet4));
// Merge in an "empty" config. Should have the original config,
// still intact.
CfgSubnets4 cfg_from;
ASSERT_NO_THROW(cfg_to.merge(cfg_def, networks, cfg_from));
// We should have all four subnets, with no changes.
ASSERT_EQ(4, cfg_to.getAll()->size());
// Should be no changes to the configuration.
ASSERT_NO_FATAL_FAILURE(checkMergedSubnet(cfg_to, "192.0.1.0/26",
SubnetID(1), 100, shared_network1));
ASSERT_NO_FATAL_FAILURE(checkMergedSubnet(cfg_to, "192.0.2.0/26",
SubnetID(2), 100, shared_network2));
ASSERT_NO_FATAL_FAILURE(checkMergedSubnet(cfg_to, "192.0.3.0/26",
SubnetID(3), 100, no_network));
ASSERT_NO_FATAL_FAILURE(checkMergedSubnet(cfg_to, "192.0.4.0/26",
SubnetID(4), 100, shared_network2));
// Fill cfg_from configuration with subnets.
// subnet 1b updates subnet 1 but leaves it in network 1 with the same ID.
Subnet4Ptr subnet1b(new Subnet4(IOAddress("192.0.10.0"),
26, 2, 3, 400, SubnetID(1)));
subnet1b->setSharedNetworkName("shared-network1");
// Add generic option 1 to subnet 1b.
std::string value("Yay!");
OptionPtr option(new Option(Option::V4, 1));
option->setData(value.begin(), value.end());
ASSERT_NO_THROW(subnet1b->getCfgOption()->add(option, false, false, "isc"));
// subnet 3b updates subnet 3 with different ID and removes it
// from network 2
Subnet4Ptr subnet3b(new Subnet4(IOAddress("192.0.3.0"),
26, 3, 4, 500, SubnetID(30)));
// Now Add generic option 1 to subnet 3b.
value = "Team!";
option.reset(new Option(Option::V4, 1));
option->setData(value.begin(), value.end());
ASSERT_NO_THROW(subnet3b->getCfgOption()->add(option, false, false, "isc"));
// subnet 4b updates subnet 4 and moves it from network2 to network 1
Subnet4Ptr subnet4b(new Subnet4(IOAddress("192.0.4.0"),
26, 3, 4, 500, SubnetID(4)));
subnet4b->setSharedNetworkName("shared-network1");
// subnet 5 is new and belongs to network 2
// Has two pools both with an option 1
Subnet4Ptr subnet5(new Subnet4(IOAddress("192.0.5.0"),
26, 1, 2, 300, SubnetID(5)));
subnet5->setSharedNetworkName("shared-network2");
// Add pool 1
Pool4Ptr pool(new Pool4(IOAddress("192.0.5.10"), IOAddress("192.0.5.20")));
value = "POOLS";
option.reset(new Option(Option::V4, 1));
option->setData(value.begin(), value.end());
ASSERT_NO_THROW(pool->getCfgOption()->add(option, false, false, "isc"));
subnet5->addPool(pool);
// Add pool 2
pool.reset(new Pool4(IOAddress("192.0.5.30"), IOAddress("192.0.5.40")));
value ="RULE!";
option.reset(new Option(Option::V4, 1));
option->setData(value.begin(), value.end());
ASSERT_NO_THROW(pool->getCfgOption()->add(option, false, false, "isc"));
subnet5->addPool(pool);
// Add subnets to the merge from config.
ASSERT_NO_THROW(cfg_from.add(subnet1b));
ASSERT_NO_THROW(cfg_from.add(subnet3b));
ASSERT_NO_THROW(cfg_from.add(subnet4b));
ASSERT_NO_THROW(cfg_from.add(subnet5));
// Merge again.
ASSERT_NO_THROW(cfg_to.merge(cfg_def, networks, cfg_from));
ASSERT_EQ(5, cfg_to.getAll()->size());
// The subnet1 should be replaced by subnet1b.
ASSERT_NO_FATAL_FAILURE(checkMergedSubnet(cfg_to, "192.0.10.0/26",
SubnetID(1), 400, shared_network1));
// Let's verify that our option is there and populated correctly.
auto subnet = cfg_to.getByPrefix("192.0.10.0/26");
auto desc = subnet->getCfgOption()->get("isc", 1);
ASSERT_TRUE(desc.option_);
OptionStringPtr opstr = boost::dynamic_pointer_cast<OptionString>(desc.option_);
ASSERT_TRUE(opstr);
EXPECT_EQ("Yay!", opstr->getValue());
// The subnet2 should not be affected because it was not present.
ASSERT_NO_FATAL_FAILURE(checkMergedSubnet(cfg_to, "192.0.2.0/26",
SubnetID(2), 100, shared_network2));
// subnet3 should be replaced by subnet3b and no longer assigned to a network.
ASSERT_NO_FATAL_FAILURE(checkMergedSubnet(cfg_to, "192.0.3.0/26",
SubnetID(30), 500, no_network));
// Let's verify that our option is there and populated correctly.
subnet = cfg_to.getByPrefix("192.0.3.0/26");
desc = subnet->getCfgOption()->get("isc", 1);
ASSERT_TRUE(desc.option_);
opstr = boost::dynamic_pointer_cast<OptionString>(desc.option_);
ASSERT_TRUE(opstr);
EXPECT_EQ("Team!", opstr->getValue());
// subnet4 should be replaced by subnet4b and moved to network1.
ASSERT_NO_FATAL_FAILURE(checkMergedSubnet(cfg_to, "192.0.4.0/26",
SubnetID(4), 500, shared_network1));
// subnet5 should have been added to configuration.
ASSERT_NO_FATAL_FAILURE(checkMergedSubnet(cfg_to, "192.0.5.0/26",
SubnetID(5), 300, shared_network2));
// Let's verify that both pools have the proper options.
subnet = cfg_to.getByPrefix("192.0.5.0/26");
const PoolPtr merged_pool = subnet->getPool(Lease::TYPE_V4, IOAddress("192.0.5.10"));
ASSERT_TRUE(merged_pool);
desc = merged_pool->getCfgOption()->get("isc", 1);
opstr = boost::dynamic_pointer_cast<OptionString>(desc.option_);
ASSERT_TRUE(opstr);
EXPECT_EQ("POOLS", opstr->getValue());
const PoolPtr merged_pool2 = subnet->getPool(Lease::TYPE_V4, IOAddress("192.0.5.30"));
ASSERT_TRUE(merged_pool2);
desc = merged_pool2->getCfgOption()->get("isc", 1);
opstr = boost::dynamic_pointer_cast<OptionString>(desc.option_);
ASSERT_TRUE(opstr);
EXPECT_EQ("RULE!", opstr->getValue());
}
// This test verifies that it is possible to retrieve a subnet using an
// IP address.
TEST(CfgSubnets4Test, selectSubnetByCiaddr) {
CfgSubnets4 cfg;
// Create 3 subnets.
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"),
26, 1, 2, 3, SubnetID(1)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"),
26, 1, 2, 3, SubnetID(2)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"),
26, 1, 2, 3, SubnetID(3)));
// Make sure that initially the subnets don't exist.
SubnetSelector selector;
selector.ciaddr_ = IOAddress("192.0.2.0");
// Set some unicast local address to simulate a Renew.
selector.local_address_ = IOAddress("10.0.0.100");
ASSERT_FALSE(cfg.selectSubnet(selector));
// Add one subnet and make sure it is returned.
cfg.add(subnet1);
selector.ciaddr_ = IOAddress("192.0.2.63");
EXPECT_EQ(subnet1, cfg.selectSubnet(selector));
// Add all other subnets.
cfg.add(subnet2);
cfg.add(subnet3);
// Make sure they are returned for the appropriate addresses.
selector.ciaddr_ = IOAddress("192.0.2.15");
EXPECT_EQ(subnet1, cfg.selectSubnet(selector));
selector.ciaddr_ = IOAddress("192.0.2.85");
EXPECT_EQ(subnet2, cfg.selectSubnet(selector));
selector.ciaddr_ = IOAddress("192.0.2.191");
EXPECT_EQ(subnet3, cfg.selectSubnet(selector));
// Also, make sure that the NULL pointer is returned if the subnet
// cannot be found.
selector.ciaddr_ = IOAddress("192.0.2.192");
EXPECT_FALSE(cfg.selectSubnet(selector));
}
// This test verifies that it is possible to select a subnet by
// matching an interface name.
TEST(CfgSubnets4Test, selectSubnetByIface) {
// The IfaceMgrTestConfig object initializes fake interfaces:
// eth0, eth1 and lo on the configuration manager. The CfgSubnets4
// object uses interface names to select the appropriate subnet.
IfaceMgrTestConfig config(true);
CfgSubnets4 cfg;
// Create 3 subnets.
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"),
26, 1, 2, 3, SubnetID(1)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"),
26, 1, 2, 3, SubnetID(2)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"),
26, 1, 2, 3, SubnetID(3)));
// No interface defined for subnet1
subnet2->setIface("lo");
subnet3->setIface("eth1");
cfg.add(subnet1);
cfg.add(subnet2);
cfg.add(subnet3);
// Make sure that initially the subnets don't exist.
SubnetSelector selector;
// Set an interface to a name that is not defined in the config.
// Subnet selection should fail.
selector.iface_name_ = "eth0";
ASSERT_FALSE(cfg.selectSubnet(selector));
// Now select an interface name that matches. Selection should succeed
// and return subnet3.
selector.iface_name_ = "eth1";
Subnet4Ptr selected = cfg.selectSubnet(selector);
ASSERT_TRUE(selected);
EXPECT_EQ(subnet3, selected);
}
// This test verifies that it is possible to select subnet by interface
// name specified on the shared network level.
TEST(CfgSubnets4Test, selectSharedNetworkByIface) {
// The IfaceMgrTestConfig object initializes fake interfaces:
// eth0, eth1 and lo on the configuration manager. The CfgSubnets4
// object uses interface names to select the appropriate subnet.
IfaceMgrTestConfig config(true);
CfgSubnets4 cfg;
// Create 3 subnets.
Subnet4Ptr subnet1(new Subnet4(IOAddress("172.16.2.0"), 24, 1, 2, 3,
SubnetID(1)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("10.1.2.0"), 24, 1, 2, 3,
SubnetID(2)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.3.4.0"), 24, 1, 2, 3,
SubnetID(3)));
subnet2->setIface("lo");
cfg.add(subnet1);
cfg.add(subnet2);
cfg.add(subnet3);
SharedNetwork4Ptr network(new SharedNetwork4("network_eth1"));
network->setIface("eth1");
ASSERT_NO_THROW(network->add(subnet1));
ASSERT_NO_THROW(network->add(subnet2));
// Make sure that initially the subnets don't exist.
SubnetSelector selector;
// Set an interface to a name that is not defined in the config.
// Subnet selection should fail.
selector.iface_name_ = "eth0";
ASSERT_FALSE(cfg.selectSubnet(selector));
// Now select an interface name that matches. Selection should succeed
// and return subnet3.
selector.iface_name_ = "eth1";
Subnet4Ptr selected = cfg.selectSubnet(selector);
ASSERT_TRUE(selected);
SharedNetwork4Ptr network_returned;
selected->getSharedNetwork(network_returned);
ASSERT_TRUE(network_returned);
EXPECT_EQ(network, network_returned);
const Subnet4SimpleCollection* subnets_eth1 =
network_returned->getAllSubnets();
EXPECT_EQ(2, subnets_eth1->size());
ASSERT_TRUE(network_returned->getSubnet(SubnetID(1)));
ASSERT_TRUE(network_returned->getSubnet(SubnetID(2)));
// Make sure that it is still possible to select subnet2 which is
// outside of a shared network.
selector.iface_name_ = "lo";
selected = cfg.selectSubnet(selector);
ASSERT_TRUE(selected);
EXPECT_EQ(2, selected->getID());
// Try selecting by eth1 again, but this time set subnet specific
// interface name to eth0. Subnet selection should fail.
selector.iface_name_ = "eth1";
subnet1->setIface("eth0");
subnet3->setIface("eth0");
selected = cfg.selectSubnet(selector);
ASSERT_FALSE(selected);
// It should be possible to select by eth0, though.
selector.iface_name_ = "eth0";
selected = cfg.selectSubnet(selector);
ASSERT_TRUE(selected);
EXPECT_EQ(subnet1, selected);
}
// This test verifies that when the classification information is specified for
// subnets, the proper subnets are returned by the subnet configuration.
TEST(CfgSubnets4Test, selectSubnetByClasses) {
CfgSubnets4 cfg;
// Create 3 subnets.
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"),
26, 1, 2, 3, SubnetID(1)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"),
26, 1, 2, 3, SubnetID(2)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"),
26, 1, 2, 3, SubnetID(3)));
// Add them to the configuration.
cfg.add(subnet1);
cfg.add(subnet2);
cfg.add(subnet3);
SubnetSelector selector;
selector.local_address_ = IOAddress("10.0.0.10");
selector.ciaddr_ = IOAddress("192.0.2.5");
EXPECT_EQ(subnet1, cfg.selectSubnet(selector));
selector.ciaddr_ = IOAddress("192.0.2.70");
EXPECT_EQ(subnet2, cfg.selectSubnet(selector));
selector.ciaddr_ = IOAddress("192.0.2.130");
EXPECT_EQ(subnet3, cfg.selectSubnet(selector));
ClientClasses client_classes;
client_classes.insert("bar");
selector.client_classes_ = client_classes;
// There are no class restrictions defined, so everything should work
// as before
selector.ciaddr_ = IOAddress("192.0.2.5");
EXPECT_EQ(subnet1, cfg.selectSubnet(selector));
selector.ciaddr_ = IOAddress("192.0.2.70");
EXPECT_EQ(subnet2, cfg.selectSubnet(selector));
selector.ciaddr_ = IOAddress("192.0.2.130");
EXPECT_EQ(subnet3, cfg.selectSubnet(selector));
// Now let's add client class restrictions.
subnet1->allowClientClass("foo"); // Serve here only clients from foo class
subnet2->allowClientClass("bar"); // Serve here only clients from bar class
subnet3->allowClientClass("baz"); // Serve here only clients from baz class
// The same check as above should result in client being served only in
// bar class, i.e. subnet2.
selector.ciaddr_ = IOAddress("192.0.2.5");
EXPECT_FALSE(cfg.selectSubnet(selector));
selector.ciaddr_ = IOAddress("192.0.2.70");
EXPECT_EQ(subnet2, cfg.selectSubnet(selector));
selector.ciaddr_ = IOAddress("192.0.2.130");
EXPECT_FALSE(cfg.selectSubnet(selector));
// Now let's check that client with wrong class is not supported.
client_classes.clear();
client_classes.insert("some_other_class");
selector.client_classes_ = client_classes;
selector.ciaddr_ = IOAddress("192.0.2.5");
EXPECT_FALSE(cfg.selectSubnet(selector));
selector.ciaddr_ = IOAddress("192.0.2.70");
EXPECT_FALSE(cfg.selectSubnet(selector));
selector.ciaddr_ = IOAddress("192.0.2.130");
EXPECT_FALSE(cfg.selectSubnet(selector));
// Finally, let's check that client without any classes is not supported.
client_classes.clear();
selector.ciaddr_ = IOAddress("192.0.2.5");
EXPECT_FALSE(cfg.selectSubnet(selector));
selector.ciaddr_ = IOAddress("192.0.2.70");
EXPECT_FALSE(cfg.selectSubnet(selector));
selector.ciaddr_ = IOAddress("192.0.2.130");
EXPECT_FALSE(cfg.selectSubnet(selector));
}
// This test verifies that shared network can be selected based on client
// classification.
TEST(CfgSubnets4Test, selectSharedNetworkByClasses) {
IfaceMgrTestConfig config(true);
CfgSubnets4 cfg;
// Create 3 subnets.
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"),
26, 1, 2, 3, SubnetID(1)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"),
26, 1, 2, 3, SubnetID(2)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"),
26, 1, 2, 3, SubnetID(3)));
// Add them to the configuration.
cfg.add(subnet1);
cfg.add(subnet2);
cfg.add(subnet3);
// Create first network and add first two subnets to it.
SharedNetwork4Ptr network1(new SharedNetwork4("network1"));
network1->setIface("eth1");
network1->allowClientClass("device-type1");
ASSERT_NO_THROW(network1->add(subnet1));
ASSERT_NO_THROW(network1->add(subnet2));
// Create second network and add last subnet there.
SharedNetwork4Ptr network2(new SharedNetwork4("network2"));
network2->setIface("eth1");
network2->allowClientClass("device-type2");
ASSERT_NO_THROW(network2->add(subnet3));
// Use interface name as a selector. This guarantees that subnet
// selection will be made based on the classification.
SubnetSelector selector;
selector.iface_name_ = "eth1";
// If the client has "device-type2" class, it is expected that the
// second network will be used. This network has only one subnet
// in it, i.e. subnet3.
ClientClasses client_classes;
client_classes.insert("device-type2");
selector.client_classes_ = client_classes;
EXPECT_EQ(subnet3, cfg.selectSubnet(selector));
// Switch to device-type1 and expect that we assigned a subnet from
// another shared network.
client_classes.clear();
client_classes.insert("device-type1");
selector.client_classes_ = client_classes;
Subnet4Ptr subnet = cfg.selectSubnet(selector);
ASSERT_TRUE(subnet);
SharedNetwork4Ptr network;
subnet->getSharedNetwork(network);
ASSERT_TRUE(network);
EXPECT_EQ("network1", network->getName());
}
// This test verifies the option selection can be used and is only
// used when present.
TEST(CfgSubnets4Test, selectSubnetByOptionSelect) {
CfgSubnets4 cfg;
// Create 3 subnets.
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"),
26, 1, 2, 3, SubnetID(1)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"),
26, 1, 2, 3, SubnetID(2)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"),
26, 1, 2, 3, SubnetID(3)));
// Add them to the configuration.
cfg.add(subnet1);
cfg.add(subnet2);
cfg.add(subnet3);
SubnetSelector selector;
// Check that without option selection something else is used
selector.ciaddr_ = IOAddress("192.0.2.5");
EXPECT_EQ(subnet1, cfg.selectSubnet(selector));
// The option selection has precedence
selector.option_select_ = IOAddress("192.0.2.130");
EXPECT_EQ(subnet3, cfg.selectSubnet(selector));
// Over relay-info too
selector.giaddr_ = IOAddress("10.0.0.1");
subnet2->addRelayAddress(IOAddress("10.0.0.1"));
EXPECT_EQ(subnet3, cfg.selectSubnet(selector));
selector.option_select_ = IOAddress("0.0.0.0");
EXPECT_EQ(subnet2, cfg.selectSubnet(selector));
// Check that a not matching option selection it shall fail
selector.option_select_ = IOAddress("10.0.0.1");
EXPECT_FALSE(cfg.selectSubnet(selector));
}
// This test verifies that the relay information can be used to retrieve the
// subnet.
TEST(CfgSubnets4Test, selectSubnetByRelayAddress) {
CfgSubnets4 cfg;
// Create 3 subnets.
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"),
26, 1, 2, 3, SubnetID(1)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"),
26, 1, 2, 3, SubnetID(2)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"),
26, 1, 2, 3, SubnetID(3)));
// Add them to the configuration.
cfg.add(subnet1);
cfg.add(subnet2);
cfg.add(subnet3);
SubnetSelector selector;
// Check that without relay-info specified, subnets are not selected
selector.giaddr_ = IOAddress("10.0.0.1");
EXPECT_FALSE(cfg.selectSubnet(selector));
selector.giaddr_ = IOAddress("10.0.0.2");
EXPECT_FALSE(cfg.selectSubnet(selector));
selector.giaddr_ = IOAddress("10.0.0.3");
EXPECT_FALSE(cfg.selectSubnet(selector));
// Now specify relay info
subnet1->addRelayAddress(IOAddress("10.0.0.1"));
subnet2->addRelayAddress(IOAddress("10.0.0.2"));
subnet3->addRelayAddress(IOAddress("10.0.0.3"));
// And try again. This time relay-info is there and should match.
selector.giaddr_ = IOAddress("10.0.0.1");
EXPECT_EQ(subnet1, cfg.selectSubnet(selector));
selector.giaddr_ = IOAddress("10.0.0.2");
EXPECT_EQ(subnet2, cfg.selectSubnet(selector));
selector.giaddr_ = IOAddress("10.0.0.3");
EXPECT_EQ(subnet3, cfg.selectSubnet(selector));
}
// This test verifies that the relay information specified on the shared
// network level can be used to select a subnet.
TEST(CfgSubnets4Test, selectSharedNetworkByRelayAddressNetworkLevel) {
CfgSubnets4 cfg;
// Create 3 subnets.
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"),
26, 1, 2, 3, SubnetID(1)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"),
26, 1, 2, 3, SubnetID(2)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"),
26, 1, 2, 3, SubnetID(3)));
// Add them to the configuration.
cfg.add(subnet1);
cfg.add(subnet2);
cfg.add(subnet3);
SharedNetwork4Ptr network(new SharedNetwork4("network"));
network->add(subnet2);
SubnetSelector selector;
// Now specify relay info. Note that for the second subnet we specify
// relay info on the network level.
subnet1->addRelayAddress(IOAddress("10.0.0.1"));
network->addRelayAddress(IOAddress("10.0.0.2"));
subnet3->addRelayAddress(IOAddress("10.0.0.3"));
// And try again. This time relay-info is there and should match.
selector.giaddr_ = IOAddress("10.0.0.1");
EXPECT_EQ(subnet1, cfg.selectSubnet(selector));
selector.giaddr_ = IOAddress("10.0.0.2");
EXPECT_EQ(subnet2, cfg.selectSubnet(selector));
selector.giaddr_ = IOAddress("10.0.0.3");
EXPECT_EQ(subnet3, cfg.selectSubnet(selector));
}
// This test verifies that the relay information specified on the subnet
// level can be used to select a subnet and the fact that a subnet belongs
// to a shared network doesn't affect the process.
TEST(CfgSubnets4Test, selectSharedNetworkByRelayAddressSubnetLevel) {
CfgSubnets4 cfg;
// Create 3 subnets.
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"),
26, 1, 2, 3, SubnetID(1)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"),
26, 1, 2, 3, SubnetID(2)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"),
26, 1, 2, 3, SubnetID(3)));
// Add them to the configuration.
cfg.add(subnet1);
cfg.add(subnet2);
cfg.add(subnet3);
SharedNetwork4Ptr network1(new SharedNetwork4("network1"));
network1->add(subnet1);
SharedNetwork4Ptr network2(new SharedNetwork4("network2"));
network2->add(subnet2);
SubnetSelector selector;
// Now specify relay info. Note that for the second subnet we specify
// relay info on the network level.
subnet1->addRelayAddress(IOAddress("10.0.0.1"));
subnet2->addRelayAddress(IOAddress("10.0.0.2"));
subnet3->addRelayAddress(IOAddress("10.0.0.3"));
// And try again. This time relay-info is there and should match.
selector.giaddr_ = IOAddress("10.0.0.1");
EXPECT_EQ(subnet1, cfg.selectSubnet(selector));
selector.giaddr_ = IOAddress("10.0.0.2");
EXPECT_EQ(subnet2, cfg.selectSubnet(selector));
selector.giaddr_ = IOAddress("10.0.0.3");
EXPECT_EQ(subnet3, cfg.selectSubnet(selector));
}
// This test verifies that the subnet can be selected for the client
// using a source address if the client hasn't set the ciaddr.
TEST(CfgSubnets4Test, selectSubnetNoCiaddr) {
CfgSubnets4 cfg;
// Create 3 subnets.
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"),
26, 1, 2, 3, SubnetID(1)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"),
26, 1, 2, 3, SubnetID(2)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"),
26, 1, 2, 3, SubnetID(3)));
// Make sure that initially the subnets don't exist.
SubnetSelector selector;
selector.remote_address_ = IOAddress("192.0.2.0");
// Set some unicast local address to simulate a Renew.
selector.local_address_ = IOAddress("10.0.0.100");
ASSERT_FALSE(cfg.selectSubnet(selector));
// Add one subnet and make sure it is returned.
cfg.add(subnet1);
selector.remote_address_ = IOAddress("192.0.2.63");
EXPECT_EQ(subnet1, cfg.selectSubnet(selector));
// Add all other subnets.
cfg.add(subnet2);
cfg.add(subnet3);
// Make sure they are returned for the appropriate addresses.
selector.remote_address_ = IOAddress("192.0.2.15");
EXPECT_EQ(subnet1, cfg.selectSubnet(selector));
selector.remote_address_ = IOAddress("192.0.2.85");
EXPECT_EQ(subnet2, cfg.selectSubnet(selector));
selector.remote_address_ = IOAddress("192.0.2.191");
EXPECT_EQ(subnet3, cfg.selectSubnet(selector));
// Also, make sure that the NULL pointer is returned if the subnet
// cannot be found.
selector.remote_address_ = IOAddress("192.0.2.192");
EXPECT_FALSE(cfg.selectSubnet(selector));
}
// This test verifies that the subnet can be selected using an address
// set on the local interface.
TEST(CfgSubnets4Test, selectSubnetInterface) {
// The IfaceMgrTestConfig object initializes fake interfaces:
// eth0, eth1 and lo on the configuration manager. The CfgSubnets4
// object uses addresses assigned to these fake interfaces to
// select the appropriate subnet.
IfaceMgrTestConfig config(true);
CfgSubnets4 cfg;
SubnetSelector selector;
// Initially, there are no subnets configured, so none of the IPv4
// addresses assigned to eth0 and eth1 can match with any subnet.
selector.iface_name_ = "eth0";
EXPECT_FALSE(cfg.selectSubnet(selector));
selector.iface_name_ = "eth1";
EXPECT_FALSE(cfg.selectSubnet(selector));
// Configure first subnet which address on eth0 corresponds to.
Subnet4Ptr subnet1(new Subnet4(IOAddress("10.0.0.1"),
24, 1, 2, 3, SubnetID(1)));
cfg.add(subnet1);
// The address on eth0 should match the existing subnet.
selector.iface_name_ = "eth0";
Subnet4Ptr subnet1_ret = cfg.selectSubnet(selector);
ASSERT_TRUE(subnet1_ret);
EXPECT_EQ(subnet1->get().first, subnet1_ret->get().first);
// There should still be no match for eth1.
selector.iface_name_ = "eth1";
EXPECT_FALSE(cfg.selectSubnet(selector));
// Configure a second subnet.
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.1"),
24, 1, 2, 3, SubnetID(2)));
cfg.add(subnet2);
// There should be match between eth0 and subnet1 and between eth1 and
// subnet 2.
selector.iface_name_ = "eth0";
subnet1_ret = cfg.selectSubnet(selector);
ASSERT_TRUE(subnet1_ret);
EXPECT_EQ(subnet1->get().first, subnet1_ret->get().first);
selector.iface_name_ = "eth1";
Subnet4Ptr subnet2_ret = cfg.selectSubnet(selector);
ASSERT_TRUE(subnet2_ret);
EXPECT_EQ(subnet2->get().first, subnet2_ret->get().first);
// This function throws an exception if the name of the interface is wrong.
selector.iface_name_ = "bogus-interface";
EXPECT_THROW(cfg.selectSubnet(selector), isc::BadValue);
}
// Checks that detection of duplicated subnet IDs works as expected. It should
// not be possible to add two IPv4 subnets holding the same ID.
TEST(CfgSubnets4Test, duplication) {
CfgSubnets4 cfg;
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"), 26, 1, 2, 3, 123));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"), 26, 1, 2, 3, 124));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"), 26, 1, 2, 3, 123));
Subnet4Ptr subnet4(new Subnet4(IOAddress("192.0.2.1"), 26, 1, 2, 3, 125));
ASSERT_NO_THROW(cfg.add(subnet1));
EXPECT_NO_THROW(cfg.add(subnet2));
// Subnet 3 has the same ID as subnet 1. It shouldn't be able to add it.
EXPECT_THROW(cfg.add(subnet3), isc::dhcp::DuplicateSubnetID);
// Subnet 4 has a similar but different subnet as subnet 1.
EXPECT_NO_THROW(cfg.add(subnet4));
}
// This test checks if the IPv4 subnet can be selected based on the IPv6 address.
TEST(CfgSubnets4Test, 4o6subnetMatchByAddress) {
CfgSubnets4 cfg;
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"), 26, 1, 2, 3, 123));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"), 26, 1, 2, 3, 124));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"), 26, 1, 2, 3, 125));
subnet2->get4o6().setSubnet4o6(IOAddress("2001:db8:1::"), 48);
subnet3->get4o6().setSubnet4o6(IOAddress("2001:db8:2::"), 48);
cfg.add(subnet1);
cfg.add(subnet2);
cfg.add(subnet3);
SubnetSelector selector;
selector.dhcp4o6_ = true;
selector.remote_address_ = IOAddress("2001:db8:1::dead:beef");
EXPECT_EQ(subnet2, cfg.selectSubnet4o6(selector));
}
// This test checks if the IPv4 subnet can be selected based on the value of
// interface-id option.
TEST(CfgSubnets4Test, 4o6subnetMatchByInterfaceId) {
CfgSubnets4 cfg;
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"), 26, 1, 2, 3, 123));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"), 26, 1, 2, 3, 124));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"), 26, 1, 2, 3, 125));
const uint8_t dummyPayload1[] = { 1, 2, 3, 4};
const uint8_t dummyPayload2[] = { 1, 2, 3, 5};
std::vector<uint8_t> data1(dummyPayload1, dummyPayload1 + sizeof(dummyPayload1));
std::vector<uint8_t> data2(dummyPayload2, dummyPayload2 + sizeof(dummyPayload2));
OptionPtr interfaceId1(new Option(Option::V6, D6O_INTERFACE_ID, data1));
OptionPtr interfaceId2(new Option(Option::V6, D6O_INTERFACE_ID, data2));
subnet2->get4o6().setInterfaceId(interfaceId1);
cfg.add(subnet1);
cfg.add(subnet2);
cfg.add(subnet3);
SubnetSelector selector;
selector.dhcp4o6_ = true;
selector.interface_id_ = interfaceId2;
// We have mismatched interface-id options (data1 vs data2). Should not match.
EXPECT_FALSE(cfg.selectSubnet4o6(selector));
// This time we have correct interface-id. Should match.
selector.interface_id_ = interfaceId1;
EXPECT_EQ(subnet2, cfg.selectSubnet4o6(selector));
}
// This test checks if the IPv4 subnet can be selected based on the value of
// interface name option.
TEST(CfgSubnets4Test, 4o6subnetMatchByInterfaceName) {
CfgSubnets4 cfg;
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"), 26, 1, 2, 3, 123));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"), 26, 1, 2, 3, 124));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"), 26, 1, 2, 3, 125));
subnet2->get4o6().setIface4o6("eth7");
cfg.add(subnet1);
cfg.add(subnet2);
cfg.add(subnet3);
SubnetSelector selector;
selector.dhcp4o6_ = true;
selector.iface_name_ = "eth5";
// We have mismatched interface names. Should not match.
EXPECT_FALSE(cfg.selectSubnet4o6(selector));
// This time we have correct names. Should match.
selector.iface_name_ = "eth7";
EXPECT_EQ(subnet2, cfg.selectSubnet4o6(selector));
}
// This test check if IPv4 subnets can be unparsed in a predictable way,
TEST(CfgSubnets4Test, unparseSubnet) {
CfgSubnets4 cfg;
// Add some subnets.
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"), 26, 1, 2, 3, 123));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"), 26, 1, 2, 3, 124));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"), 26, 1, 2, 3, 125));
subnet1->allowClientClass("foo");
subnet1->setT1Percent(0.45);
subnet1->setT2Percent(0.70);
subnet1->setCacheThreshold(0.20);
subnet2->setIface("lo");
subnet2->addRelayAddress(IOAddress("10.0.0.1"));
subnet2->setValid(Triplet<uint32_t>(100));
subnet2->setStoreExtendedInfo(true);
subnet2->setCacheMaxAge(80);
subnet2->setOfferLft(99);
subnet3->setIface("eth1");
subnet3->requireClientClass("foo");
subnet3->requireClientClass("bar");
subnet3->setCalculateTeeTimes(true);
subnet3->setT1Percent(0.50);
subnet3->setT2Percent(0.65);
subnet3->setReservationsGlobal(false);
subnet3->setReservationsInSubnet(true);
subnet3->setReservationsOutOfPool(false);
subnet3->setAuthoritative(false);
subnet3->setMatchClientId(true);
subnet3->setSiaddr(IOAddress("192.0.2.2"));
subnet3->setSname("frog");
subnet3->setFilename("/dev/null");
subnet3->setValid(Triplet<uint32_t>(100, 200, 300));
subnet3->setDdnsSendUpdates(true);
subnet3->setDdnsOverrideNoUpdate(true);
subnet3->setDdnsOverrideClientUpdate(true);
subnet3->setDdnsReplaceClientNameMode(D2ClientConfig::RCM_ALWAYS);
subnet3->setDdnsGeneratedPrefix("prefix");
subnet3->setDdnsQualifyingSuffix("example.com.");
subnet3->setHostnameCharSet("[^A-Z]");
subnet3->setHostnameCharReplacement("x");
data::ElementPtr ctx1 = data::Element::fromJSON("{ \"comment\": \"foo\" }");
subnet1->setContext(ctx1);
data::ElementPtr ctx2 = data::Element::createMap();
subnet2->setContext(ctx2);
cfg.add(subnet1);
cfg.add(subnet2);
cfg.add(subnet3);
// Unparse
std::string expected = "[\n"
"{\n"
" \"id\": 123,\n"
" \"subnet\": \"192.0.2.0/26\",\n"
" \"t1-percent\": 0.45,"
" \"t2-percent\": 0.7,"
" \"cache-threshold\": .20,\n"
" \"renew-timer\": 1,\n"
" \"rebind-timer\": 2,\n"
" \"relay\": { \"ip-addresses\": [ ] },\n"
" \"valid-lifetime\": 3,\n"
" \"min-valid-lifetime\": 3,\n"
" \"max-valid-lifetime\": 3,\n"
" \"client-class\": \"foo\",\n"
" \"4o6-interface\": \"\",\n"
" \"4o6-interface-id\": \"\",\n"
" \"4o6-subnet\": \"\",\n"
" \"option-data\": [ ],\n"
" \"pools\": [ ],\n"
" \"user-context\": { \"comment\": \"foo\" }\n"
"},{\n"
" \"id\": 124,\n"
" \"subnet\": \"192.0.2.64/26\",\n"
" \"interface\": \"lo\",\n"
" \"renew-timer\": 1,\n"
" \"rebind-timer\": 2,\n"
" \"relay\": { \"ip-addresses\": [ \"10.0.0.1\" ] },\n"
" \"valid-lifetime\": 100,\n"
" \"min-valid-lifetime\": 100,\n"
" \"max-valid-lifetime\": 100,\n"
" \"4o6-interface\": \"\",\n"
" \"4o6-interface-id\": \"\",\n"
" \"4o6-subnet\": \"\",\n"
" \"user-context\": {},\n"
" \"option-data\": [ ],\n"
" \"pools\": [ ],\n"
" \"store-extended-info\": true,\n"
" \"cache-max-age\": 80,\n"
" \"offer-lifetime\": 99\n"
"},{\n"
" \"id\": 125,\n"
" \"subnet\": \"192.0.2.128/26\",\n"
" \"interface\": \"eth1\",\n"
" \"match-client-id\": true,\n"
" \"next-server\": \"192.0.2.2\",\n"
" \"server-hostname\": \"frog\",\n"
" \"boot-file-name\": \"/dev/null\",\n"
" \"renew-timer\": 1,\n"
" \"rebind-timer\": 2,\n"
" \"relay\": { \"ip-addresses\": [ ] },\n"
" \"valid-lifetime\": 200,\n"
" \"min-valid-lifetime\": 100,\n"
" \"max-valid-lifetime\": 300,\n"
" \"4o6-interface\": \"\",\n"
" \"4o6-interface-id\": \"\",\n"
" \"4o6-subnet\": \"\",\n"
" \"authoritative\": false,\n"
" \"reservations-global\": false,\n"
" \"reservations-in-subnet\": true,\n"
" \"reservations-out-of-pool\": false,\n"
" \"option-data\": [ ],\n"
" \"pools\": [ ]\n,"
" \"require-client-classes\": [ \"foo\", \"bar\" ],\n"
" \"calculate-tee-times\": true,\n"
" \"t1-percent\": 0.50,\n"
" \"t2-percent\": 0.65,\n"
" \"ddns-generated-prefix\": \"prefix\",\n"
" \"ddns-override-client-update\": true,\n"
" \"ddns-override-no-update\": true,\n"
" \"ddns-qualifying-suffix\": \"example.com.\",\n"
" \"ddns-replace-client-name\": \"always\",\n"
" \"ddns-send-updates\": true,\n"
" \"hostname-char-replacement\": \"x\",\n"
" \"hostname-char-set\": \"[^A-Z]\"\n"
"} ]\n";
runToElementTest<CfgSubnets4>(expected, cfg);
}
// This test check if IPv4 pools can be unparsed in a predictable way,
TEST(CfgSubnets4Test, unparsePool) {
CfgSubnets4 cfg;
// Add a subnet with pools
Subnet4Ptr subnet(new Subnet4(IOAddress("192.0.2.0"), 24, 1, 2, 3, 123));
Pool4Ptr pool1(new Pool4(IOAddress("192.0.2.1"), IOAddress("192.0.2.10")));
Pool4Ptr pool2(new Pool4(IOAddress("192.0.2.64"), 26));
pool2->allowClientClass("bar");
std::string json1 = "{ \"comment\": \"foo\", \"version\": 1 }";
data::ElementPtr ctx1 = data::Element::fromJSON(json1);
pool1->setContext(ctx1);
data::ElementPtr ctx2 = data::Element::fromJSON("{ \"foo\": \"bar\" }");
pool2->setContext(ctx2);
pool2->requireClientClass("foo");
subnet->addPool(pool1);
subnet->addPool(pool2);
cfg.add(subnet);
// Unparse
std::string expected = "[\n"
"{\n"
" \"id\": 123,\n"
" \"subnet\": \"192.0.2.0/24\",\n"
" \"renew-timer\": 1,\n"
" \"rebind-timer\": 2,\n"
" \"relay\": { \"ip-addresses\": [ ] },\n"
" \"valid-lifetime\": 3,\n"
" \"min-valid-lifetime\": 3,\n"
" \"max-valid-lifetime\": 3,\n"
" \"4o6-interface\": \"\",\n"
" \"4o6-interface-id\": \"\",\n"
" \"4o6-subnet\": \"\",\n"
" \"option-data\": [],\n"
" \"pools\": [\n"
" {\n"
" \"option-data\": [ ],\n"
" \"pool\": \"192.0.2.1-192.0.2.10\",\n"
" \"user-context\": { \"comment\": \"foo\",\n"
" \"version\": 1 }\n"
" },{\n"
" \"option-data\": [ ],\n"
" \"pool\": \"192.0.2.64/26\",\n"
" \"user-context\": { \"foo\": \"bar\" },\n"
" \"client-class\": \"bar\",\n"
" \"require-client-classes\": [ \"foo\" ]\n"
" }\n"
" ]\n"
"} ]\n";
runToElementTest<CfgSubnets4>(expected, cfg);
}
// This test verifies that it is possible to retrieve a subnet using subnet-id.
TEST(CfgSubnets4Test, getSubnet) {
CfgSubnets4 cfg;
// Create 3 subnets.
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.2.0"), 26, 1, 2, 3, 100));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.64"), 26, 1, 2, 3, 200));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.2.128"), 26, 1, 2, 3, 300));
// Add one subnet and make sure it is returned.
cfg.add(subnet1);
cfg.add(subnet2);
cfg.add(subnet3);
EXPECT_EQ(subnet1, cfg.getSubnet(100));
EXPECT_EQ(subnet2, cfg.getSubnet(200));
EXPECT_EQ(subnet3, cfg.getSubnet(300));
EXPECT_EQ(Subnet4Ptr(), cfg.getSubnet(400)); // no such subnet
}
// This test verifies that hasSubnetWithServerId returns correct value.
TEST(CfgSubnets4Test, hasSubnetWithServerId) {
CfgSubnets4 cfg;
// Initially, there is no server identifier option present.
EXPECT_FALSE(cfg.hasSubnetWithServerId(IOAddress("1.2.3.4")));
OptionDefinitionPtr def = LibDHCP::getOptionDef(DHCP4_OPTION_SPACE,
DHO_DHCP_SERVER_IDENTIFIER);
OptionCustomPtr opt_server_id(new OptionCustom(*def, Option::V4));
opt_server_id->writeAddress(IOAddress("1.2.3.4"));
Subnet4Ptr subnet(new Subnet4(IOAddress("192.0.2.0"), 26, 1, 2, 3, 100));
subnet->getCfgOption()->add(opt_server_id, false, false,
DHCP4_OPTION_SPACE);
cfg.add(subnet);
EXPECT_TRUE(cfg.hasSubnetWithServerId(IOAddress("1.2.3.4")));
EXPECT_FALSE(cfg.hasSubnetWithServerId(IOAddress("2.3.4.5")));
}
// This test verifies the Subnet4 parser's validation logic for
// t1-percent and t2-percent parameters.
TEST(CfgSubnets4Test, teeTimePercentValidation) {
// Describes a single test scenario.
struct Scenario {
std::string label; // label used for logging test failures
bool calculate_tee_times; // value of calculate-tee-times parameter
double t1_percent; // value of t1-percent parameter
double t2_percent; // value of t2-percent parameter
std::string error_message; // expected error message is parsing should fail
};
// Test Scenarios.
std::vector<Scenario> tests = {
{"off and valid", false, .5, .95, ""},
{"on and valid", true, .5, .95, ""},
{"t2_negative", true, .5, -.95,
"subnet configuration failed: t2-percent:"
" -0.95 is invalid, it must be greater than 0.0 and less than 1.0"
},
{"t2_too_big", true, .5, 1.95,
"subnet configuration failed: t2-percent:"
" 1.95 is invalid, it must be greater than 0.0 and less than 1.0"
},
{"t1_negative", true, -.5, .95,
"subnet configuration failed: t1-percent:"
" -0.5 is invalid it must be greater than 0.0 and less than 1.0"
},
{"t1_too_big", true, 1.5, .95,
"subnet configuration failed: t1-percent:"
" 1.5 is invalid it must be greater than 0.0 and less than 1.0"
},
{"t1_bigger_than_t2", true, .85, .45,
"subnet configuration failed: t1-percent:"
" 0.85 is invalid, it must be less than t2-percent: 0.45"
}
};
// First we create a set of elements that provides all
// required for a Subnet4.
std::string json =
" {"
" \"id\": 1,\n"
" \"subnet\": \"10.1.2.0/24\", \n"
" \"interface\": \"\", \n"
" \"renew-timer\": 100, \n"
" \"rebind-timer\": 200, \n"
" \"valid-lifetime\": 300, \n"
" \"match-client-id\": false, \n"
" \"authoritative\": false, \n"
" \"next-server\": \"\", \n"
" \"server-hostname\": \"\", \n"
" \"boot-file-name\": \"\", \n"
" \"client-class\": \"\", \n"
" \"require-client-classes\": [] \n,"
" \"reservations-global\": false, \n"
" \"reservations-in-subnet\": true, \n"
" \"reservations-out-of-pool\": false, \n"
" \"4o6-interface\": \"\", \n"
" \"4o6-interface-id\": \"\", \n"
" \"4o6-subnet\": \"\" \n"
" }";
data::ElementPtr elems;
ASSERT_NO_THROW(elems = data::Element::fromJSON(json))
<< "invalid JSON:" << json << "\n test is broken";
// Iterate over the test scenarios, verifying each prescribed
// outcome.
for (auto test = tests.begin(); test != tests.end(); ++test) {
{
SCOPED_TRACE("test: " + (*test).label);
// Set this scenario's configuration parameters
elems->set("calculate-tee-times", data::Element::create((*test).calculate_tee_times));
elems->set("t1-percent", data::Element::create((*test).t1_percent));
elems->set("t2-percent", data::Element::create((*test).t2_percent));
Subnet4Ptr subnet;
try {
// Attempt to parse the configuration.
Subnet4ConfigParser parser;
subnet = parser.parse(elems);
} catch (const std::exception& ex) {
if (!(*test).error_message.empty()) {
// We expected a failure, did we fail the correct way?
EXPECT_EQ((*test).error_message, ex.what());
} else {
// Should not have failed.
ADD_FAILURE() << "Scenario should not have failed: " << ex.what();
}
// Either way we're done with this scenario.
continue;
}
// We parsed correctly, make sure the values are right.
EXPECT_EQ((*test).calculate_tee_times, subnet->getCalculateTeeTimes());
EXPECT_TRUE(util::areDoublesEquivalent((*test).t1_percent, subnet->getT1Percent()));
EXPECT_TRUE(util::areDoublesEquivalent((*test).t2_percent, subnet->getT2Percent()));
}
}
}
// This test verifies the Subnet4 parser's validation logic for
// valid-lifetime and indirectly shared lifetime parsing.
TEST(CfgSubnets4Test, validLifetimeValidation) {
// First we create a set of elements that provides all
// required for a Subnet4.
std::string json =
" {"
" \"id\": 1,\n"
" \"subnet\": \"10.1.2.0/24\", \n"
" \"interface\": \"\", \n"
" \"renew-timer\": 100, \n"
" \"rebind-timer\": 200, \n"
" \"match-client-id\": false, \n"
" \"authoritative\": false, \n"
" \"next-server\": \"\", \n"
" \"server-hostname\": \"\", \n"
" \"boot-file-name\": \"\", \n"
" \"client-class\": \"\", \n"
" \"require-client-classes\": [] \n,"
" \"reservations-global\": false, \n"
" \"reservations-in-subnet\": true, \n"
" \"reservations-out-of-pool\": false, \n"
" \"4o6-interface\": \"\", \n"
" \"4o6-interface-id\": \"\", \n"
" \"4o6-subnet\": \"\" \n"
" }";
data::ElementPtr elems;
ASSERT_NO_THROW(elems = data::Element::fromJSON(json))
<< "invalid JSON:" << json << "\n test is broken";
{
SCOPED_TRACE("no valid-lifetime");
data::ElementPtr copied = data::copy(elems);
Subnet4Ptr subnet;
Subnet4ConfigParser parser;
ASSERT_NO_THROW(subnet = parser.parse(copied));
ASSERT_TRUE(subnet);
EXPECT_TRUE(subnet->getValid().unspecified());
data::ConstElementPtr repr = subnet->toElement();
EXPECT_FALSE(repr->get("valid-lifetime"));
EXPECT_FALSE(repr->get("min-valid-lifetime"));
EXPECT_FALSE(repr->get("max-valid-lifetime"));
}
{
SCOPED_TRACE("valid-lifetime only");
data::ElementPtr copied = data::copy(elems);
copied->set("valid-lifetime", data::Element::create(100));
Subnet4Ptr subnet;
Subnet4ConfigParser parser;
ASSERT_NO_THROW(subnet = parser.parse(copied));
ASSERT_TRUE(subnet);
EXPECT_FALSE(subnet->getValid().unspecified());
EXPECT_EQ(100, subnet->getValid().get());
EXPECT_EQ(100, subnet->getValid().getMin());
EXPECT_EQ(100, subnet->getValid().getMax());
data::ConstElementPtr repr = subnet->toElement();
data::ConstElementPtr value = repr->get("valid-lifetime");
ASSERT_TRUE(value);
EXPECT_EQ("100", value->str());
data::ConstElementPtr min_value = repr->get("min-valid-lifetime");
ASSERT_TRUE(min_value);
EXPECT_EQ("100", min_value->str());
data::ConstElementPtr max_value = repr->get("max-valid-lifetime");
ASSERT_TRUE(max_value);
EXPECT_EQ("100", max_value->str());
}
{
SCOPED_TRACE("min-valid-lifetime only");
data::ElementPtr copied = data::copy(elems);
copied->set("min-valid-lifetime", data::Element::create(100));
Subnet4Ptr subnet;
Subnet4ConfigParser parser;
ASSERT_NO_THROW(subnet = parser.parse(copied));
ASSERT_TRUE(subnet);
EXPECT_FALSE(subnet->getValid().unspecified());
EXPECT_EQ(100, subnet->getValid().get());
EXPECT_EQ(100, subnet->getValid().getMin());
EXPECT_EQ(100, subnet->getValid().getMax());
data::ConstElementPtr repr = subnet->toElement();
data::ConstElementPtr value = repr->get("valid-lifetime");
ASSERT_TRUE(value);
EXPECT_EQ("100", value->str());
data::ConstElementPtr min_value = repr->get("min-valid-lifetime");
ASSERT_TRUE(min_value);
EXPECT_EQ("100", min_value->str());
data::ConstElementPtr max_value = repr->get("max-valid-lifetime");
ASSERT_TRUE(max_value);
EXPECT_EQ("100", max_value->str());
}
{
SCOPED_TRACE("max-valid-lifetime only");
data::ElementPtr copied = data::copy(elems);
copied->set("max-valid-lifetime", data::Element::create(100));
Subnet4Ptr subnet;
Subnet4ConfigParser parser;
ASSERT_NO_THROW(subnet = parser.parse(copied));
ASSERT_TRUE(subnet);
EXPECT_FALSE(subnet->getValid().unspecified());
EXPECT_EQ(100, subnet->getValid().get());
EXPECT_EQ(100, subnet->getValid().getMin());
EXPECT_EQ(100, subnet->getValid().getMax());
data::ConstElementPtr repr = subnet->toElement();
data::ConstElementPtr value = repr->get("valid-lifetime");
ASSERT_TRUE(value);
EXPECT_EQ("100", value->str());
data::ConstElementPtr min_value = repr->get("min-valid-lifetime");
ASSERT_TRUE(min_value);
EXPECT_EQ("100", min_value->str());
data::ConstElementPtr max_value = repr->get("max-valid-lifetime");
ASSERT_TRUE(max_value);
EXPECT_EQ("100", max_value->str());
}
{
SCOPED_TRACE("min-valid-lifetime and valid-lifetime");
data::ElementPtr copied = data::copy(elems);
copied->set("min-valid-lifetime", data::Element::create(100));
// Use a different (and greater) value for the default.
copied->set("valid-lifetime", data::Element::create(200));
Subnet4Ptr subnet;
Subnet4ConfigParser parser;
ASSERT_NO_THROW(subnet = parser.parse(copied));
ASSERT_TRUE(subnet);
EXPECT_FALSE(subnet->getValid().unspecified());
EXPECT_EQ(200, subnet->getValid().get());
EXPECT_EQ(100, subnet->getValid().getMin());
EXPECT_EQ(200, subnet->getValid().getMax());
data::ConstElementPtr repr = subnet->toElement();
data::ConstElementPtr value = repr->get("valid-lifetime");
ASSERT_TRUE(value);
EXPECT_EQ("200", value->str());
data::ConstElementPtr min_value = repr->get("min-valid-lifetime");
ASSERT_TRUE(min_value);
EXPECT_EQ("100", min_value->str());
data::ConstElementPtr max_value = repr->get("max-valid-lifetime");
ASSERT_TRUE(max_value);
EXPECT_EQ("200", max_value->str());
}
{
SCOPED_TRACE("max-valid-lifetime and valid-lifetime");
data::ElementPtr copied = data::copy(elems);
copied->set("max-valid-lifetime", data::Element::create(200));
// Use a different (and smaller) value for the default.
copied->set("valid-lifetime", data::Element::create(100));
Subnet4Ptr subnet;
Subnet4ConfigParser parser;
ASSERT_NO_THROW(subnet = parser.parse(copied));
ASSERT_TRUE(subnet);
EXPECT_FALSE(subnet->getValid().unspecified());
EXPECT_EQ(100, subnet->getValid().get());
EXPECT_EQ(100, subnet->getValid().getMin());
EXPECT_EQ(200, subnet->getValid().getMax());
data::ConstElementPtr repr = subnet->toElement();
data::ConstElementPtr value = repr->get("valid-lifetime");
ASSERT_TRUE(value);
EXPECT_EQ("100", value->str());
data::ConstElementPtr min_value = repr->get("min-valid-lifetime");
ASSERT_TRUE(min_value);
EXPECT_EQ("100", min_value->str());
data::ConstElementPtr max_value = repr->get("max-valid-lifetime");
ASSERT_TRUE(max_value);
EXPECT_EQ("200", max_value->str());
}
{
SCOPED_TRACE("min-valid-lifetime and max-valid-lifetime");
data::ElementPtr copied = data::copy(elems);
copied->set("min-valid-lifetime", data::Element::create(100));
copied->set("max-valid-lifetime", data::Element::create(200));
Subnet4ConfigParser parser;
// No idea about the value to use for the default so failing.
ASSERT_THROW(parser.parse(copied), DhcpConfigError);
}
{
SCOPED_TRACE("all 3 (min, max and default) valid-lifetime");
data::ElementPtr copied = data::copy(elems);
copied->set("min-valid-lifetime", data::Element::create(100));
// Use a different (and greater) value for the default.
copied->set("valid-lifetime", data::Element::create(200));
// Use a different (and greater than both) value for max.
copied->set("max-valid-lifetime", data::Element::create(300));
Subnet4Ptr subnet;
Subnet4ConfigParser parser;
ASSERT_NO_THROW(subnet = parser.parse(copied));
ASSERT_TRUE(subnet);
EXPECT_FALSE(subnet->getValid().unspecified());
EXPECT_EQ(200, subnet->getValid().get());
EXPECT_EQ(100, subnet->getValid().getMin());
EXPECT_EQ(300, subnet->getValid().getMax());
data::ConstElementPtr repr = subnet->toElement();
data::ConstElementPtr value = repr->get("valid-lifetime");
ASSERT_TRUE(value);
EXPECT_EQ("200", value->str());
data::ConstElementPtr min_value = repr->get("min-valid-lifetime");
ASSERT_TRUE(min_value);
EXPECT_EQ("100", min_value->str());
data::ConstElementPtr max_value = repr->get("max-valid-lifetime");
ASSERT_TRUE(max_value);
EXPECT_EQ("300", max_value->str());
}
{
SCOPED_TRACE("default value too small");
data::ElementPtr copied = data::copy(elems);
copied->set("min-valid-lifetime", data::Element::create(200));
// 100 < 200 so it will fail.
copied->set("valid-lifetime", data::Element::create(100));
// Use a different (and greater than both) value for max.
copied->set("max-valid-lifetime", data::Element::create(300));
Subnet4ConfigParser parser;
ASSERT_THROW(parser.parse(copied), DhcpConfigError);
}
{
SCOPED_TRACE("default value too large");
data::ElementPtr copied = data::copy(elems);
copied->set("min-valid-lifetime", data::Element::create(100));
// Use a different (and greater) value for the default.
copied->set("valid-lifetime", data::Element::create(300));
// 300 > 200 so it will fail.
copied->set("max-valid-lifetime", data::Element::create(200));
Subnet4ConfigParser parser;
ASSERT_THROW(parser.parse(copied), DhcpConfigError);
}
{
SCOPED_TRACE("equal bounds are no longer ignored");
data::ElementPtr copied = data::copy(elems);
copied->set("min-valid-lifetime", data::Element::create(100));
copied->set("valid-lifetime", data::Element::create(100));
copied->set("max-valid-lifetime", data::Element::create(100));
Subnet4Ptr subnet;
Subnet4ConfigParser parser;
ASSERT_NO_THROW(subnet = parser.parse(copied));
ASSERT_TRUE(subnet);
EXPECT_FALSE(subnet->getValid().unspecified());
EXPECT_EQ(100, subnet->getValid().get());
EXPECT_EQ(100, subnet->getValid().getMin());
EXPECT_EQ(100, subnet->getValid().getMax());
data::ConstElementPtr repr = subnet->toElement();
data::ConstElementPtr value = repr->get("valid-lifetime");
ASSERT_TRUE(value);
EXPECT_EQ("100", value->str());
data::ConstElementPtr min_value = repr->get("min-valid-lifetime");
ASSERT_TRUE(min_value);
EXPECT_EQ("100", min_value->str());
data::ConstElementPtr max_value = repr->get("max-valid-lifetime");
ASSERT_TRUE(max_value);
EXPECT_EQ("100", max_value->str());
}
}
// This test verifies the Subnet4 parser's validation logic for
// hostname sanitizer values.
TEST(CfgSubnets4Test, hostnameSanitizierValidation) {
// First we create a set of elements that provides all
// required for a Subnet4.
std::string json =
" {"
" \"id\": 1,\n"
" \"subnet\": \"10.1.2.0/24\", \n"
" \"interface\": \"\", \n"
" \"renew-timer\": 100, \n"
" \"rebind-timer\": 200, \n"
" \"match-client-id\": false, \n"
" \"authoritative\": false, \n"
" \"next-server\": \"\", \n"
" \"server-hostname\": \"\", \n"
" \"boot-file-name\": \"\", \n"
" \"client-class\": \"\", \n"
" \"require-client-classes\": [] \n,"
" \"reservations-global\": false, \n"
" \"reservations-in-subnet\": true, \n"
" \"reservations-out-of-pool\": false, \n"
" \"4o6-interface\": \"\", \n"
" \"4o6-interface-id\": \"\", \n"
" \"4o6-subnet\": \"\" \n"
" }";
data::ElementPtr elems;
ASSERT_NO_THROW(elems = data::Element::fromJSON(json))
<< "invalid JSON:" << json << "\n test is broken";
{
SCOPED_TRACE("invalid regular expression");
data::ElementPtr copied = data::copy(elems);
copied->set("hostname-char-set", data::Element::create("^[A-"));
copied->set("hostname-char-replacement", data::Element::create("x"));
Subnet4Ptr subnet;
Subnet4ConfigParser parser;
EXPECT_THROW_MSG(subnet = parser.parse(copied), DhcpConfigError,
"subnet configuration failed: hostname-char-set "
"'^[A-' is not a valid regular expression");
}
{
SCOPED_TRACE("valid regular expression");
data::ElementPtr copied = data::copy(elems);
copied->set("hostname-char-set", data::Element::create("^[A-Z]"));
copied->set("hostname-char-replacement", data::Element::create("x"));
Subnet4Ptr subnet;
Subnet4ConfigParser parser;
ASSERT_NO_THROW(subnet = parser.parse(copied));
EXPECT_EQ("^[A-Z]", subnet->getHostnameCharSet().get());
EXPECT_EQ("x", subnet->getHostnameCharReplacement().get());
}
}
// This test verifies the Subnet4 parser's validation logic for
// lease cache parameters.
TEST(CfgSubnets4Test, cacheParamValidation) {
// Describes a single test scenario.
struct Scenario {
std::string label; // label used for logging test failures
double threshold; // value of cache-threshold
std::string error_message; // expected error message is parsing should fail
};
// Test Scenarios.
std::vector<Scenario> tests = {
{"valid", .25, ""},
{"negative", -.25,
"subnet configuration failed: cache-threshold:"
" -0.25 is invalid, it must be greater than 0.0 and less than 1.0"
},
{"too big", 1.05,
"subnet configuration failed: cache-threshold:"
" 1.05 is invalid, it must be greater than 0.0 and less than 1.0"
}
};
// First we create a set of elements that provides all
// required for a Subnet4.
std::string json =
" {"
" \"id\": 1,\n"
" \"subnet\": \"10.1.2.0/24\", \n"
" \"interface\": \"\", \n"
" \"renew-timer\": 100, \n"
" \"rebind-timer\": 200, \n"
" \"valid-lifetime\": 300, \n"
" \"match-client-id\": false, \n"
" \"authoritative\": false, \n"
" \"next-server\": \"\", \n"
" \"server-hostname\": \"\", \n"
" \"boot-file-name\": \"\", \n"
" \"client-class\": \"\", \n"
" \"require-client-classes\": [] \n,"
" \"reservations-global\": false, \n"
" \"reservations-in-subnet\": true, \n"
" \"reservations-out-of-pool\": false, \n"
" \"4o6-interface\": \"\", \n"
" \"4o6-interface-id\": \"\", \n"
" \"4o6-subnet\": \"\" \n"
" }";
data::ElementPtr elems;
ASSERT_NO_THROW(elems = data::Element::fromJSON(json))
<< "invalid JSON:" << json << "\n test is broken";
// Iterate over the test scenarios, verifying each prescribed
// outcome.
for (auto test = tests.begin(); test != tests.end(); ++test) {
{
SCOPED_TRACE("test: " + (*test).label);
// Set this scenario's configuration parameters
elems->set("cache-threshold", data::Element::create((*test).threshold));
Subnet4Ptr subnet;
try {
// Attempt to parse the configuration.
Subnet4ConfigParser parser;
subnet = parser.parse(elems);
} catch (const std::exception& ex) {
if (!(*test).error_message.empty()) {
// We expected a failure, did we fail the correct way?
EXPECT_EQ((*test).error_message, ex.what());
} else {
// Should not have failed.
ADD_FAILURE() << "Scenario should not have failed: " << ex.what();
}
// Either way we're done with this scenario.
continue;
}
// We parsed correctly, make sure the values are right.
EXPECT_TRUE(util::areDoublesEquivalent((*test).threshold, subnet->getCacheThreshold()));
}
}
}
// This test verifies that the optional interface check works as expected.
TEST(CfgSubnets4Test, iface) {
// Create a configuration.
std::string json =
" {"
" \"id\": 1,\n"
" \"subnet\": \"10.1.2.0/24\", \n"
" \"interface\": \"eth1961\"\n"
" }";
data::ElementPtr elems;
ASSERT_NO_THROW(elems = data::Element::fromJSON(json))
<< "invalid JSON:" << json << "\n test is broken";
// The interface check can be disabled.
Subnet4ConfigParser parser_no_check(false);
Subnet4Ptr subnet;
EXPECT_NO_THROW(subnet = parser_no_check.parse(elems));
ASSERT_TRUE(subnet);
EXPECT_FALSE(subnet->getIface().unspecified());
EXPECT_EQ("eth1961", subnet->getIface().get());
// Retry with the interface check enabled.
Subnet4ConfigParser parser;
EXPECT_THROW(parser.parse(elems), DhcpConfigError);
// Configure default test interfaces.
IfaceMgrTestConfig config(true);
EXPECT_NO_THROW(subnet = parser_no_check.parse(elems));
ASSERT_TRUE(subnet);
EXPECT_FALSE(subnet->getIface().unspecified());
EXPECT_EQ("eth1961", subnet->getIface().get());
EXPECT_NO_THROW(subnet = parser.parse(elems));
ASSERT_TRUE(subnet);
EXPECT_FALSE(subnet->getIface().unspecified());
EXPECT_EQ("eth1961", subnet->getIface().get());
}
// This test verifies that update statistics works as expected.
TEST(CfgSubnets4Test, updateStatistics) {
CfgMgr::instance().clear();
CfgSubnets4Ptr cfg = CfgMgr::instance().getCurrentCfg()->getCfgSubnets4();
ObservationPtr observation;
SubnetID subnet_id = 100;
LeaseMgrFactory::create("type=memfile universe=4 persist=false");
// remove all statistics
StatsMgr::instance().removeAll();
// Create subnet.
Subnet4Ptr subnet(new Subnet4(IOAddress("192.0.2.0"), 26, 1, 2, 3, 100));
Pool4Ptr pool(new Pool4(IOAddress("192.0.2.0"), 26));
subnet->addPool(pool);
// Add subnet.
cfg->add(subnet);
observation = StatsMgr::instance().getObservation(
"cumulative-assigned-addresses");
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
"declined-addresses");
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
"reclaimed-declined-addresses");
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
"reclaimed-leases");
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"total-addresses"));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "total-addresses")));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"assigned-addresses"));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "assigned-addresses")));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"cumulative-assigned-addresses"));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "cumulative-assigned-addresses")));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"declined-addresses"));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "declined-addresses")));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"reclaimed-declined-addresses"));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "reclaimed-declined-addresses")));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"reclaimed-leases"));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "reclaimed-leases")));
ASSERT_FALSE(observation);
cfg->updateStatistics();
observation = StatsMgr::instance().getObservation(
"cumulative-assigned-addresses");
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
observation = StatsMgr::instance().getObservation(
"declined-addresses");
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
observation = StatsMgr::instance().getObservation(
"reclaimed-declined-addresses");
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
observation = StatsMgr::instance().getObservation(
"reclaimed-leases");
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"total-addresses"));
ASSERT_TRUE(observation);
ASSERT_EQ(64, observation->getInteger().first);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "total-addresses")));
ASSERT_TRUE(observation);
ASSERT_EQ(64, observation->getInteger().first);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"assigned-addresses"));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "assigned-addresses")));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"cumulative-assigned-addresses"));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "cumulative-assigned-addresses")));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"declined-addresses"));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "declined-addresses")));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"reclaimed-declined-addresses"));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "reclaimed-declined-addresses")));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"reclaimed-leases"));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "reclaimed-leases")));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
}
// This test verifies that remove statistics works as expected.
TEST(CfgSubnets4Test, removeStatistics) {
CfgSubnets4 cfg;
ObservationPtr observation;
SubnetID subnet_id = 100;
// remove all statistics and then set them all to 0
StatsMgr::instance().removeAll();
// Create subnet.
Subnet4Ptr subnet(new Subnet4(IOAddress("192.0.2.0"), 26, 1, 2, 3, 100));
Pool4Ptr pool(new Pool4(IOAddress("192.0.2.0"), 26));
subnet->addPool(pool);
// Add subnet.
cfg.add(subnet);
StatsMgr::instance().setValue(
StatsMgr::generateName("subnet", subnet_id,
"total-addresses"),
int64_t(0));
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"total-addresses"));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
StatsMgr::instance().setValue(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "total-addresses")),
int64_t(0));
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "total-addresses")));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
StatsMgr::instance().setValue(
StatsMgr::generateName("subnet", subnet_id,
"assigned-addresses"),
int64_t(0));
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"assigned-addresses"));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
StatsMgr::instance().setValue(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "assigned-addresses")),
int64_t(0));
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "assigned-addresses")));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
StatsMgr::instance().setValue(
StatsMgr::generateName("subnet", subnet_id,
"cumulative-assigned-addresses"),
int64_t(0));
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"cumulative-assigned-addresses"));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
StatsMgr::instance().setValue(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "cumulative-assigned-addresses")),
int64_t(0));
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "cumulative-assigned-addresses")));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
StatsMgr::instance().setValue(
StatsMgr::generateName("subnet", subnet_id,
"declined-addresses"),
int64_t(0));
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"declined-addresses"));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
StatsMgr::instance().setValue(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "declined-addresses")),
int64_t(0));
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "declined-addresses")));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
StatsMgr::instance().setValue(
StatsMgr::generateName("subnet", subnet_id,
"reclaimed-declined-addresses"),
int64_t(0));
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"reclaimed-declined-addresses"));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
StatsMgr::instance().setValue(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "reclaimed-declined-addresses")),
int64_t(0));
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "reclaimed-declined-addresses")));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
StatsMgr::instance().setValue(
StatsMgr::generateName("subnet", subnet_id,
"reclaimed-leases"),
int64_t(0));
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"reclaimed-leases"));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
StatsMgr::instance().setValue(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "reclaimed-leases")),
int64_t(0));
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "reclaimed-leases")));
ASSERT_TRUE(observation);
ASSERT_EQ(0, observation->getInteger().first);
// remove all statistics
cfg.removeStatistics();
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"total-addresses"));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "total-addresses")));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"assigned-addresses"));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "assigned-addresses")));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"cumulative-assigned-addresses"));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "cumulative-assigned-addresses")));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"declined-addresses"));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "declined-addresses")));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"reclaimed-declined-addresses"));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "reclaimed-declined-addresses")));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
"reclaimed-leases"));
ASSERT_FALSE(observation);
observation = StatsMgr::instance().getObservation(
StatsMgr::generateName("subnet", subnet_id,
StatsMgr::generateName("pool", 0, "reclaimed-leases")));
ASSERT_FALSE(observation);
}
// This test verifies that in range host reservation works as expected.
TEST(CfgSubnets4Test, host) {
// Create a configuration.
std::string json =
" {"
" \"id\": 1,\n"
" \"subnet\": \"10.1.2.0/24\", \n"
" \"reservations\": [ {\n"
" \"hw-address\": \"aa:bb:cc:dd:ee:ff\", \n"
" \"ip-address\": \"10.1.2.1\" } ]\n"
" }";
data::ElementPtr elems;
ASSERT_NO_THROW(elems = data::Element::fromJSON(json))
<< "invalid JSON:" << json << "\n test is broken";
Subnet4ConfigParser parser;
Subnet4Ptr subnet;
EXPECT_NO_THROW(subnet = parser.parse(elems));
ASSERT_TRUE(subnet);
CfgHostsPtr cfg_hosts = CfgMgr::instance().getStagingCfg()->getCfgHosts();
ASSERT_TRUE(cfg_hosts);
HostCollection hosts = cfg_hosts->getAll4(SubnetID(1));
ASSERT_EQ(1, hosts.size());
ConstHostPtr host = hosts[0];
ASSERT_TRUE(host);
EXPECT_EQ(1, host->getIPv4SubnetID());
EXPECT_EQ("hwaddr=AABBCCDDEEFF", host->getIdentifierAsText());
EXPECT_EQ("10.1.2.1", host->getIPv4Reservation().toText());
CfgMgr::instance().clear();
}
// This test verifies that an out of range host reservation is rejected.
TEST(CfgSubnets4Test, outOfRangeHost) {
// Create a configuration.
std::string json =
" {"
" \"id\": 1,\n"
" \"subnet\": \"10.1.2.0/24\", \n"
" \"reservations\": [ {\n"
" \"hw-address\": \"aa:bb:cc:dd:ee:ff\", \n"
" \"ip-address\": \"10.2.2.1\" } ]\n"
" }";
data::ElementPtr elems;
ASSERT_NO_THROW(elems = data::Element::fromJSON(json))
<< "invalid JSON:" << json << "\n test is broken";
Subnet4ConfigParser parser;
std::string msg = "specified reservation '10.2.2.1' is not within ";
msg += "the IPv4 subnet '10.1.2.0/24'";
EXPECT_THROW_MSG(parser.parse(elems), DhcpConfigError, msg);
}
// This test verifies that the getLinks tool works as expected.
TEST(CfgSubnets4Test, getLinks) {
CfgSubnets4 cfg;
// Create 4 subnets.
Subnet4Ptr subnet0(new Subnet4(IOAddress("0.0.0.0"),
24, 1, 2, 3, SubnetID(111)));
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.1.0"),
26, 1, 2, 3, SubnetID(1)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.0"),
26, 1, 2, 3, SubnetID(2)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.3.0"),
26, 1, 2, 3, SubnetID(3)));
// Add all subnets to the configuration.
ASSERT_NO_THROW(cfg.add(subnet0));
ASSERT_NO_THROW(cfg.add(subnet1));
ASSERT_NO_THROW(cfg.add(subnet2));
ASSERT_NO_THROW(cfg.add(subnet3));
// No 192.0.4.0 subnet.
SubnetIDSet links;
uint8_t link_len = 111;
EXPECT_NO_THROW(links = cfg.getLinks(IOAddress("192.0.4.0"), link_len));
EXPECT_TRUE(links.empty());
EXPECT_EQ(111, link_len);
// A 192.0.2.0/26 subnet.
links.clear();
link_len = 111;
EXPECT_NO_THROW(links = cfg.getLinks(IOAddress("192.0.2.0"), link_len));
SubnetIDSet expected = { 2 };
EXPECT_EQ(expected, links);
EXPECT_EQ(26, link_len);
// Check that any address in the subnet works.
links.clear();
link_len = 111;
EXPECT_NO_THROW(links = cfg.getLinks(IOAddress("192.0.2.23"), link_len));
EXPECT_EQ(expected, links);
EXPECT_EQ(26, link_len);
// Check that an address outside the subnet does not work.
links.clear();
link_len = 111;
EXPECT_NO_THROW(links = cfg.getLinks(IOAddress("192.0.2.123"), link_len));
EXPECT_TRUE(links.empty());
EXPECT_EQ(111, link_len);
// Add a second 192.0.2.0/26 subnet.
Subnet4Ptr subnet10(new Subnet4(IOAddress("192.0.2.10"),
26, 1, 2, 3, SubnetID(10)));
ASSERT_NO_THROW(cfg.add(subnet10));
// Now we should get 2 subnets.
links.clear();
link_len = 111;
EXPECT_NO_THROW(links = cfg.getLinks(IOAddress("192.0.2.0"), link_len));
expected = { 2, 10 };
EXPECT_EQ(expected, links);
EXPECT_EQ(26, link_len);
// Add a larger subnet.
Subnet4Ptr subnet20(new Subnet4(IOAddress("192.0.2.20"),
24, 1, 2, 3, SubnetID(20)));
ASSERT_NO_THROW(cfg.add(subnet20));
// Now we should get 3 subnets and a smaller prefix length.
links.clear();
link_len = 111;
EXPECT_NO_THROW(links = cfg.getLinks(IOAddress("192.0.2.0"), link_len));
expected = { 2, 10, 20 };
EXPECT_EQ(expected, links);
EXPECT_EQ(24, link_len);
// But only the larger subnet if the address is only in it.
links.clear();
link_len = 111;
EXPECT_NO_THROW(links = cfg.getLinks(IOAddress("192.0.2.123"), link_len));
expected = { 20 };
EXPECT_EQ(expected, links);
EXPECT_EQ(24, link_len);
// Even it is not used for Bulk Leasequery, it works for 0.0.0.0 too.
links.clear();
link_len = 111;
EXPECT_NO_THROW(links = cfg.getLinks(IOAddress("0.0.0.0"), link_len));
expected = { 111 };
EXPECT_EQ(expected, links);
EXPECT_EQ(24, link_len);
}
// This test verifies that for each subnet in the configuration it calls
// the initAllocatorAfterConfigure function.
TEST(CfgSubnets4Test, initAllocatorsAfterConfigure) {
CfgSubnets4 cfg;
// Create 4 subnets.
Subnet4Ptr subnet0(new Subnet4(IOAddress("0.0.0.0"),
24, 1, 2, 3, SubnetID(111)));
Subnet4Ptr subnet1(new Subnet4(IOAddress("192.0.1.0"),
26, 1, 2, 3, SubnetID(1)));
Subnet4Ptr subnet2(new Subnet4(IOAddress("192.0.2.0"),
26, 1, 2, 3, SubnetID(2)));
Subnet4Ptr subnet3(new Subnet4(IOAddress("192.0.3.0"),
26, 1, 2, 3, SubnetID(3)));
auto allocator0 = boost::make_shared<InitRecordingAllocator>(Lease::TYPE_V4, subnet0);
subnet0->setAllocator(Lease::TYPE_V4, allocator0);
auto allocator2 = boost::make_shared<InitRecordingAllocator>(Lease::TYPE_V4, subnet2);
subnet2->setAllocator(Lease::TYPE_V4, allocator2);
cfg.add(subnet0);
cfg.add(subnet1);
cfg.add(subnet2);
cfg.add(subnet3);
EXPECT_EQ(0, allocator0->callcount_);
EXPECT_EQ(0, allocator2->callcount_);
cfg.initAllocatorsAfterConfigure();
EXPECT_EQ(1, allocator0->callcount_);
EXPECT_EQ(1, allocator2->callcount_);
}
/// @brief Test fixture for parsing v4 Subnets that can verify log output.
class Subnet4ParserTest : public LogContentTest {
public:
/// @brief virtual destructor
virtual ~Subnet4ParserTest() = default;
};
// This test verifies that subnet parser for IPv4 works properly
// when using invalid renew and rebind timers.
TEST_F(Subnet4ParserTest, parseWithInvalidRenewRebind) {
std::string config =
"{\n"
" \"id\": 1,\n"
" \"subnet\": \"10.1.2.0/24\",\n"
" \"valid-lifetime\": 399,\n"
" \"rebind-timer\": 199,\n"
" \"renew-timer\": 200\n"
"}";
// Basic configuration for subnet4 but with a renew-timer value
// larger than rebind-timer.
ElementPtr config_element = Element::fromJSON(config);
// Parse configuration specified above.
Subnet4ConfigParser parser(false);
Subnet4Ptr subnet;
// Parser should not throw.
ASSERT_NO_THROW(subnet = parser.parse(config_element));
ASSERT_TRUE(subnet);
// Veriy we emitted the proper log message.
addString("DHCPSRV_CFGMGR_RENEW_GTR_REBIND in subnet-id 1,"
" the value of renew-timer 200 is greater than the value"
" of rebind-timer 199, ignoring renew-timer");
EXPECT_TRUE(checkFile());
}
} // end of anonymous namespace
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