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// Copyright (C) 2015 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 <asiolink/io_address.h>
#include <cc/data.h>
#include <dhcp/tests/iface_mgr_test_config.h>
#include <dhcp6/json_config_parser.h>
#include <dhcp6/tests/dhcp6_message_test.h>
using namespace isc;
using namespace isc::asiolink;
using namespace isc::data;
using namespace isc::dhcp;
using namespace isc::dhcp::test;
namespace {
/// @brief Set of JSON configurations used throughout the Renew tests.
///
/// - Configuration 0:
/// - only addresses (no prefixes)
/// - 1 subnet with 2001:db8:1::/64 pool
///
/// - Configuration 1:
/// - only prefixes (no addresses)
/// - prefix pool: 3000::/72
///
/// - Configuration 2:
/// - addresses and prefixes
/// - 1 subnet with one address pool and one prefix pool
/// - address pool: 2001:db8:1::/64
/// - prefix pool: 3000::/72
///
const char* RENEW_CONFIGS[] = {
// Configuration 0
"{ \"interfaces-config\": {"
" \"interfaces\": [ \"*\" ]"
"},"
"\"preferred-lifetime\": 3000,"
"\"rebind-timer\": 2000, "
"\"renew-timer\": 1000, "
"\"subnet6\": [ { "
" \"pools\": [ { \"pool\": \"2001:db8:1::/64\" } ],"
" \"subnet\": \"2001:db8:1::/48\", "
" \"interface-id\": \"\","
" \"interface\": \"eth0\""
" } ],"
"\"valid-lifetime\": 4000 }",
// Configuration 1
"{ \"interfaces-config\": {"
" \"interfaces\": [ \"*\" ]"
"},"
"\"preferred-lifetime\": 3000,"
"\"rebind-timer\": 2000, "
"\"renew-timer\": 1000, "
"\"subnet6\": [ { "
" \"pd-pools\": ["
" { \"prefix\": \"3000::\", "
" \"prefix-len\": 72, "
" \"delegated-len\": 80"
" } ],"
" \"subnet\": \"2001:db8:1::/48\", "
" \"interface-id\": \"\","
" \"interface\": \"eth0\""
" } ],"
"\"valid-lifetime\": 4000 }",
// Configuration 2
"{ \"interfaces-config\": {"
" \"interfaces\": [ \"*\" ]"
"},"
"\"preferred-lifetime\": 3000,"
"\"rebind-timer\": 2000, "
"\"renew-timer\": 1000, "
"\"subnet6\": [ { "
" \"pools\": [ { \"pool\": \"2001:db8:1::/64\" } ],"
" \"pd-pools\": ["
" { \"prefix\": \"3000::\", "
" \"prefix-len\": 72, "
" \"delegated-len\": 80"
" } ],"
" \"subnet\": \"2001:db8:1::/48\", "
" \"interface-id\": \"\","
" \"interface\": \"eth0\""
" } ],"
"\"valid-lifetime\": 4000 }"
};
/// @brief Test fixture class for testing Renew.
class RenewTest : public Dhcpv6MessageTest {
public:
/// @brief Constructor.
///
/// Sets up fake interfaces.
RenewTest()
: Dhcpv6MessageTest(), na_iaid_(1234), pd_iaid_(5678) {
}
/// @brief IAID used for IA_NA.
uint32_t na_iaid_;
/// @brief IAID used for IA_PD.
uint32_t pd_iaid_;
};
// This test verifies that the client can request the prefix delegation
// while it is renewing an address lease.
TEST_F(RenewTest, requestPrefixInRenew) {
Dhcp6Client client;
// Configure client to request IA_NA and IA_PD.
client.requestAddress(na_iaid_);
client.requestPrefix(pd_iaid_);
// Configure the server with NA pools only.
ASSERT_NO_THROW(configure(RENEW_CONFIGS[0], *client.getServer()));
// Perform 4-way exchange.
ASSERT_NO_THROW(client.doSARR());
// Simulate aging of leases.
client.fastFwdTime(1000);
// Make sure that the client has acquired NA lease.
std::vector<Lease6> leases_client_na = client.getLeasesByType(Lease::TYPE_NA);
ASSERT_EQ(1, leases_client_na.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(na_iaid_));
// The client should not acquire a PD lease.
std::vector<Lease6> leases_client_pd = client.getLeasesByType(Lease::TYPE_PD);
ASSERT_TRUE(leases_client_pd.empty());
ASSERT_EQ(STATUS_NoPrefixAvail, client.getStatusCode(pd_iaid_));
// Send Renew message to the server, including IA_NA and requesting IA_PD.
ASSERT_NO_THROW(client.doRenew());
leases_client_pd = client.getLeasesByType(Lease::TYPE_PD);
ASSERT_TRUE(leases_client_pd.empty());
ASSERT_EQ(STATUS_NoPrefixAvail, client.getStatusCode(pd_iaid_));
std::vector<Lease6> leases_client_na_renewed =
client.getLeasesByType(Lease::TYPE_NA);
ASSERT_EQ(1, leases_client_na_renewed.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(na_iaid_));
// Reconfigure the server to use both NA and PD pools.
configure(RENEW_CONFIGS[2], *client.getServer());
// Send Renew message to the server, including IA_NA and requesting IA_PD.
ASSERT_NO_THROW(client.doRenew());
// Make sure that the client has acquired NA lease.
leases_client_na_renewed = client.getLeasesByType(Lease::TYPE_NA);
ASSERT_EQ(1, leases_client_na_renewed.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(na_iaid_));
// The lease should have been renewed.
EXPECT_EQ(1000, leases_client_na_renewed[0].cltt_ - leases_client_na[0].cltt_);
// The client should now also acquire a PD lease.
leases_client_pd = client.getLeasesByType(Lease::TYPE_PD);
ASSERT_EQ(1, leases_client_pd.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(pd_iaid_));
}
// This test verifies that the client can request a prefix delegation
// with a hint, while it is renewing an address lease.
TEST_F(RenewTest, requestPrefixInRenewUseHint) {
Dhcp6Client client;
// Configure client to request IA_NA and IA_PD.
client.requestAddress(na_iaid_);
client.requestPrefix(pd_iaid_);
// Configure the server with NA pools only.
ASSERT_NO_THROW(configure(RENEW_CONFIGS[0], *client.getServer()));
// Perform 4-way exchange.
ASSERT_NO_THROW(client.doSARR());
// Simulate aging of leases.
client.fastFwdTime(1000);
// Make sure that the client has acquired NA lease.
std::vector<Lease6> leases_client_na = client.getLeasesByType(Lease::TYPE_NA);
ASSERT_EQ(1, leases_client_na.size());
// The client should not acquire a PD lease.
std::vector<Lease6> leases_client_pd = client.getLeasesByType(Lease::TYPE_PD);
ASSERT_TRUE(leases_client_pd.empty());
ASSERT_EQ(STATUS_NoPrefixAvail, client.getStatusCode(pd_iaid_));
// Send Renew message to the server, including IA_NA and requesting IA_PD.
ASSERT_NO_THROW(client.doRenew());
leases_client_pd = client.getLeasesByType(Lease::TYPE_PD);
ASSERT_TRUE(leases_client_pd.empty());
ASSERT_EQ(STATUS_NoPrefixAvail, client.getStatusCode(pd_iaid_));
std::vector<Lease6> leases_client_na_renewed =
client.getLeasesByType(Lease::TYPE_NA);
ASSERT_EQ(1, leases_client_na_renewed.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(na_iaid_));
// Specify the hint used for IA_PD.
client.requestPrefix(pd_iaid_, 64, IOAddress::IPV6_ZERO_ADDRESS());
// Send Renew message to the server, including IA_NA and requesting IA_PD.
ASSERT_NO_THROW(client.doRenew());
// Make sure that the client has acquired NA lease.
leases_client_na_renewed = client.getLeasesByType(Lease::TYPE_NA);
ASSERT_EQ(1, leases_client_na_renewed.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(na_iaid_));
leases_client_pd = client.getLeasesByType(Lease::TYPE_PD);
ASSERT_TRUE(leases_client_pd.empty());
ASSERT_EQ(STATUS_NoPrefixAvail, client.getStatusCode(pd_iaid_));
// Reconfigure the server to use both NA and PD pools.
configure(RENEW_CONFIGS[2], *client.getServer());
// Send Renew message to the server, including IA_NA and requesting IA_PD.
ASSERT_NO_THROW(client.doRenew());
// Make sure that the client has acquired NA lease.
leases_client_na_renewed = client.getLeasesByType(Lease::TYPE_NA);
ASSERT_EQ(1, leases_client_na_renewed.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(na_iaid_));
// The lease should have been renewed.
EXPECT_GE(leases_client_na_renewed[0].cltt_ - leases_client_na[0].cltt_, 1000);
// The client should now also acquire a PD lease.
leases_client_pd = client.getLeasesByType(Lease::TYPE_PD);
ASSERT_EQ(1, leases_client_pd.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(pd_iaid_));
}
// This test verifies that the client can request the prefix delegation
// while it is renewing an address lease.
TEST_F(RenewTest, requestAddressInRenew) {
Dhcp6Client client;
// Configure client to request IA_NA and IA_PD.
client.requestAddress(na_iaid_);
client.requestPrefix(pd_iaid_);
// Configure the server with PD pools only.
ASSERT_NO_THROW(configure(RENEW_CONFIGS[1], *client.getServer()));
// Perform 4-way exchange.
ASSERT_NO_THROW(client.doSARR());
// Simulate aging of leases.
client.fastFwdTime(1000);
// Make sure that the client has acquired PD lease.
std::vector<Lease6> leases_client_pd = client.getLeasesByType(Lease::TYPE_PD);
ASSERT_EQ(1, leases_client_pd.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(pd_iaid_));
// The client should not acquire a NA lease.
std::vector<Lease6> leases_client_na =
client.getLeasesByType(Lease::TYPE_NA);
ASSERT_EQ(0, leases_client_na.size());
ASSERT_EQ(STATUS_NoAddrsAvail, client.getStatusCode(na_iaid_));
// Send Renew message to the server, including IA_PD and requesting IA_NA.
// The server should return NoAddrsAvail status code in this case.
ASSERT_NO_THROW(client.doRenew());
leases_client_na = client.getLeasesByType(Lease::TYPE_NA);
ASSERT_EQ(0, leases_client_na.size());
ASSERT_EQ(STATUS_NoAddrsAvail, client.getStatusCode(na_iaid_));
std::vector<Lease6> leases_client_pd_renewed =
client.getLeasesByType(Lease::TYPE_PD);
ASSERT_EQ(1, leases_client_pd_renewed.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(pd_iaid_));
EXPECT_GE(leases_client_pd_renewed[0].cltt_ - leases_client_pd[0].cltt_, 1000);
// Reconfigure the server to use both NA and PD pools.
configure(RENEW_CONFIGS[2], *client.getServer());
// Send Renew message to the server, including IA_PD and requesting IA_NA.
ASSERT_NO_THROW(client.doRenew());
// Make sure that the client has renewed PD lease.
leases_client_pd_renewed = client.getLeasesByType(Lease::TYPE_PD);
ASSERT_EQ(1, leases_client_pd_renewed.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(pd_iaid_));
EXPECT_GE(leases_client_pd_renewed[0].cltt_ - leases_client_pd[0].cltt_, 1000);
// The client should now also acquire a NA lease.
leases_client_na = client.getLeasesByType(Lease::TYPE_NA);
ASSERT_EQ(1, leases_client_na.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(na_iaid_));
}
// This test verifies that the client can request address assignment
// while it is renewing an address lease, with a hint.
TEST_F(RenewTest, requestAddressInRenewHint) {
Dhcp6Client client;
// Configure client to request IA_NA and IA_PD.
client.requestAddress(na_iaid_);
client.requestPrefix(pd_iaid_);
// Configure the server with PD pools only.
ASSERT_NO_THROW(configure(RENEW_CONFIGS[1], *client.getServer()));
// Perform 4-way exchange.
ASSERT_NO_THROW(client.doSARR());
// Simulate aging of leases.
client.fastFwdTime(1000);
// Make sure that the client has acquired PD lease.
std::vector<Lease6> leases_client_pd = client.getLeasesByType(Lease::TYPE_PD);
ASSERT_EQ(1, leases_client_pd.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(pd_iaid_));
// The client should not acquire a NA lease.
std::vector<Lease6> leases_client_na =
client.getLeasesByType(Lease::TYPE_NA);
ASSERT_EQ(0, leases_client_na.size());
ASSERT_EQ(STATUS_NoAddrsAvail, client.getStatusCode(na_iaid_));
client.requestAddress(na_iaid_, IOAddress("2001:db8:1::100"));
// Send Renew message to the server, including IA_PD and requesting IA_NA.
// The server should return NoAddrsAvail status code in this case.
ASSERT_NO_THROW(client.doRenew());
leases_client_na = client.getLeasesByType(Lease::TYPE_NA);
// The server should return the hint with the zero lifetimes.
ASSERT_EQ(1, leases_client_na.size());
EXPECT_EQ(0, leases_client_na[0].preferred_lft_);
EXPECT_EQ(0, leases_client_na[0].valid_lft_);
ASSERT_EQ(STATUS_NoAddrsAvail, client.getStatusCode(na_iaid_));
std::vector<Lease6> leases_client_pd_renewed =
client.getLeasesByType(Lease::TYPE_PD);
ASSERT_EQ(1, leases_client_pd_renewed.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(pd_iaid_));
EXPECT_GE(leases_client_pd_renewed[0].cltt_ - leases_client_pd[0].cltt_, 1000);
// Reconfigure the server to use both NA and PD pools.
configure(RENEW_CONFIGS[2], *client.getServer());
// Send Renew message to the server, including IA_PD and requesting IA_NA.
ASSERT_NO_THROW(client.doRenew());
// Make sure that the client has renewed PD lease.
leases_client_pd_renewed = client.getLeasesByType(Lease::TYPE_PD);
ASSERT_EQ(1, leases_client_pd_renewed.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(pd_iaid_));
EXPECT_GE(leases_client_pd_renewed[0].cltt_ - leases_client_pd[0].cltt_, 1000);
// The client should now also acquire a NA lease.
leases_client_na = client.getLeasesByType(Lease::TYPE_NA);
ASSERT_EQ(1, leases_client_na.size());
EXPECT_EQ(STATUS_Success, client.getStatusCode(na_iaid_));
}
} // end of anonymous namespace
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