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363 | // Copyright (C) 2015-2023 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 <dhcp/testutils/iface_mgr_test_config.h>
#include <dhcp6/tests/dhcp6_test_utils.h>
#include <dhcp6/tests/dhcp6_client.h>
#include <dhcp/option6_addrlst.h>
#include <dhcp/option6_client_fqdn.h>
#include <stats/stats_mgr.h>
using namespace isc;
using namespace isc::dhcp;
using namespace isc::dhcp::test;
namespace {
/// @brief Set of JSON configurations used by the Information-Request unit tests.
///
/// - Configuration 0:
/// - one subnet used on eth0 interface
/// - with address and prefix pools
/// - dns-servers option
/// - Configuration 1:
/// - one subnet used on eth0 interface
/// - no addresses or prefixes
/// - domain-search option
/// - Configuration 2:
/// - one subnet used on eth0 interface
/// - dns-servers option for subnet
/// - sip-servers defined in global scope
/// - Configuration 3:
/// - nis-server, nis-domain specified in global scope
/// - no subnets defined
const char* CONFIGS[] = {
// Configuration 0
"{ \"interfaces-config\": {"
" \"interfaces\": [ \"*\" ]"
"},"
"\"preferred-lifetime\": 3000,"
"\"rebind-timer\": 2000, "
"\"renew-timer\": 1000, "
"\"subnet6\": [ { "
" \"id\": 1, "
" \"pools\": [ { \"pool\": \"2001:db8:2::/64\" } ],"
" \"pd-pools\": ["
" { \"prefix\": \"2001:db8:3::\", "
" \"prefix-len\": 48, "
" \"delegated-len\": 64"
" } ],"
" \"option-data\": [ {"
" \"name\": \"dns-servers\","
" \"data\": \"2001:db8::1, 2001:db8::2\""
" } ],"
" \"subnet\": \"2001:db8::/32\", "
" \"interface\": \"eth0\""
" } ],"
"\"valid-lifetime\": 4000 }",
// Configuration 1
"{ \"interfaces-config\": {"
" \"interfaces\": [ \"*\" ]"
"},"
"\"preferred-lifetime\": 3000,"
"\"rebind-timer\": 2000, "
"\"renew-timer\": 1000, "
"\"subnet6\": [ { "
" \"id\": 1, "
" \"option-data\": [ {"
" \"name\": \"sip-server-addr\","
" \"data\": \"2001:db8::abcd\""
" } ],"
" \"subnet\": \"2001:db8::/32\", "
" \"interface\": \"eth0\""
" } ],"
"\"valid-lifetime\": 4000 }",
// Configuration 2
"{ \"interfaces-config\": {"
" \"interfaces\": [ \"*\" ]"
"},"
"\"preferred-lifetime\": 3000,"
"\"rebind-timer\": 2000, "
"\"renew-timer\": 1000, "
" \"option-data\": [ {"
" \"name\": \"sip-server-addr\","
" \"data\": \"2001:db8::1\""
" } ],"
"\"subnet6\": [ { "
" \"id\": 1, "
" \"subnet\": \"2001:db8::/32\", "
" \"interface\": \"eth0\","
" \"option-data\": [ {"
" \"name\": \"dns-servers\","
" \"data\": \"2001:db8::2\""
" } ]"
" } ],"
"\"valid-lifetime\": 4000 }",
// Configuration 3
"{ \"interfaces-config\": {"
" \"interfaces\": [ \"*\" ]"
"},"
"\"option-data\": [ {"
" \"name\": \"nis-servers\","
" \"data\": \"2001:db8::1, 2001:db8::2\""
" } ]"
"}"
};
/// @brief Test fixture class for testing 4-way exchange: Solicit-Advertise,
/// Request-Reply.
class InfRequestTest : public Dhcpv6SrvTest {
public:
/// @brief Constructor.
///
/// Sets up fake interfaces.
InfRequestTest()
: Dhcpv6SrvTest(),
iface_mgr_test_config_(true) {
// Let's wipe all existing statistics.
isc::stats::StatsMgr::instance().removeAll();
}
/// @brief Destructor.
///
/// Removes any statistics that may have been set.
~InfRequestTest() {
// Let's wipe all existing statistics.
isc::stats::StatsMgr::instance().removeAll();
}
/// @brief Interface Manager's fake configuration control.
IfaceMgrTestConfig iface_mgr_test_config_;
};
/// Check that server processes correctly an incoming inf-request in a
/// typical subnet that has also address and prefix pools.
TEST_F(InfRequestTest, infRequestBasic) {<--- syntax error
Dhcp6Client client;
// Configure client to request IA_PD.
configure(CONFIGS[0], *client.getServer());
// Make sure we ended-up having expected number of subnets configured.
const Subnet6Collection* subnets = CfgMgr::instance().getCurrentCfg()->
getCfgSubnets6()->getAll();
ASSERT_EQ(1, subnets->size());
// Perform 2-way exchange (Inf-request/reply)
client.requestOption(D6O_NAME_SERVERS);
ASSERT_NO_THROW(client.doInfRequest());
// Confirm that there's a response
Pkt6Ptr response = client.getContext().response_;
ASSERT_TRUE(response);
// Check that it contains our client-id
OptionPtr client_id = response->getOption(D6O_CLIENTID);
ASSERT_TRUE(client_id);
EXPECT_TRUE(compareOptions(client_id, client.getClientId()));
// Check that it contains proper server-id
OptionPtr server_id = response->getOption(D6O_SERVERID);
ASSERT_TRUE(server_id);
EXPECT_TRUE(compareOptions(server_id, client.getServer()->getServerID()));
// Check that we received requested DNS servers option
Option6AddrLstPtr dns = boost::dynamic_pointer_cast<Option6AddrLst>
(response->getOption(D6O_NAME_SERVERS));
ASSERT_TRUE(dns);
Option6AddrLst::AddressContainer addrs = dns->getAddresses();
ASSERT_EQ(2, addrs.size());
EXPECT_EQ("2001:db8::1", addrs[0].toText());
EXPECT_EQ("2001:db8::2", addrs[1].toText());
}
/// Check that server processes correctly an incoming inf-request
/// that does not hold client-id. It's so called anonymous inf-request.
/// Uncommon, but certainly valid behavior.
TEST_F(InfRequestTest, infRequestAnonymous) {
Dhcp6Client client;
// Configure client to request IA_PD.
configure(CONFIGS[0], *client.getServer());
// Make sure we ended-up having expected number of subnets configured.
const Subnet6Collection* subnets = CfgMgr::instance().getCurrentCfg()->
getCfgSubnets6()->getAll();
ASSERT_EQ(1, subnets->size());
// Perform 2-way exchange (Inf-request/reply)
client.requestOption(D6O_NAME_SERVERS);
client.useClientId(false);
ASSERT_NO_THROW(client.doInfRequest());
// Confirm that there's a response
Pkt6Ptr response = client.getContext().response_;
ASSERT_TRUE(response);
// Check that we received the requested DNS servers option
Option6AddrLstPtr dns = boost::dynamic_pointer_cast<Option6AddrLst>
(response->getOption(D6O_NAME_SERVERS));
ASSERT_TRUE(dns);
Option6AddrLst::AddressContainer addrs = dns->getAddresses();
ASSERT_EQ(2, addrs.size());
EXPECT_EQ("2001:db8::1", addrs[0].toText());
EXPECT_EQ("2001:db8::2", addrs[1].toText());
}
/// Check that server processes correctly an incoming inf-request
/// if there is a subnet without any addresses or prefixes configured.
TEST_F(InfRequestTest, infRequestStateless) {
Dhcp6Client client;
// Configure client to request IA_PD.
configure(CONFIGS[1], *client.getServer());
// Make sure we ended-up having expected number of subnets configured.
const Subnet6Collection* subnets = CfgMgr::instance().getCurrentCfg()->
getCfgSubnets6()->getAll();
ASSERT_EQ(1, subnets->size());
// Perform 2-way exchange (Inf-request/reply)
client.requestOption(D6O_SIP_SERVERS_ADDR);
ASSERT_NO_THROW(client.doInfRequest());
// Confirm that there's a response
Pkt6Ptr response = client.getContext().response_;
ASSERT_TRUE(response);
// Check that we received the requested SIP servers option
Option6AddrLstPtr sip = boost::dynamic_pointer_cast<Option6AddrLst>
(response->getOption(D6O_SIP_SERVERS_ADDR));
ASSERT_TRUE(sip);
Option6AddrLst::AddressContainer addrs = sip->getAddresses();
ASSERT_EQ(1, addrs.size());
EXPECT_EQ("2001:db8::abcd", addrs[0].toText());
}
/// Check that server processes correctly an incoming inf-request
/// if there are options defined at both global and subnet scope.
TEST_F(InfRequestTest, infRequestSubnetAndGlobal) {
Dhcp6Client client;
// Configure client to request IA_PD.
configure(CONFIGS[2], *client.getServer());
// Make sure we ended-up having expected number of subnets configured.
const Subnet6Collection* subnets = CfgMgr::instance().getCurrentCfg()->
getCfgSubnets6()->getAll();
ASSERT_EQ(1, subnets->size());
// Perform 2-way exchange (Inf-request/reply)
client.requestOption(D6O_SIP_SERVERS_ADDR);
client.requestOption(D6O_NAME_SERVERS);
ASSERT_NO_THROW(client.doInfRequest());
// Confirm that there's a response
Pkt6Ptr response = client.getContext().response_;
ASSERT_TRUE(response);
// Check that we received the requested sip servers option
Option6AddrLstPtr sip = boost::dynamic_pointer_cast<Option6AddrLst>
(response->getOption(D6O_SIP_SERVERS_ADDR));
ASSERT_TRUE(sip);
Option6AddrLst::AddressContainer addrs = sip->getAddresses();
ASSERT_EQ(1, addrs.size());
EXPECT_EQ("2001:db8::1", addrs[0].toText());
// Check that we received the requested dns servers option
Option6AddrLstPtr dns = boost::dynamic_pointer_cast<Option6AddrLst>
(response->getOption(D6O_NAME_SERVERS));
ASSERT_TRUE(dns);
addrs = dns->getAddresses();
ASSERT_EQ(1, addrs.size());
EXPECT_EQ("2001:db8::2", addrs[0].toText());
}
/// Check that server processes correctly an incoming inf-request
/// if there are options defined at global scope only (no subnets).
TEST_F(InfRequestTest, infRequestNoSubnets) {
Dhcp6Client client;
// Configure client to request IA_PD.
configure(CONFIGS[3], *client.getServer());
// Make sure we ended-up having expected number of subnets configured.
const Subnet6Collection* subnets = CfgMgr::instance().getCurrentCfg()->
getCfgSubnets6()->getAll();
ASSERT_EQ(0, subnets->size());
// Perform 2-way exchange (Inf-request/reply)
client.requestOption(D6O_NIS_SERVERS);
ASSERT_NO_THROW(client.doInfRequest());
// Confirm that there's a response
Pkt6Ptr response = client.getContext().response_;
ASSERT_TRUE(response);
// Check that we received the requested sip servers option
Option6AddrLstPtr nis = boost::dynamic_pointer_cast<Option6AddrLst>
(response->getOption(D6O_NIS_SERVERS));
ASSERT_TRUE(nis);
Option6AddrLst::AddressContainer addrs = nis->getAddresses();
ASSERT_EQ(2, addrs.size());
EXPECT_EQ("2001:db8::1", addrs[0].toText());
EXPECT_EQ("2001:db8::2", addrs[1].toText());
}
/// Check that server processes correctly an incoming inf-request in a
/// typical subnet that has also address and prefix pools.
TEST_F(InfRequestTest, infRequestStats) {
Dhcp6Client client;
// Configure client to request IA_PD.
configure(CONFIGS[0], *client.getServer());
// Make sure we ended-up having expected number of subnets configured.
const Subnet6Collection* subnets = CfgMgr::instance().getCurrentCfg()->
getCfgSubnets6()->getAll();
ASSERT_EQ(1, subnets->size());
// Check that the tested statistics is initially set to 0
using namespace isc::stats;
StatsMgr& mgr = StatsMgr::instance();
ObservationPtr pkt6_rcvd = mgr.getObservation("pkt6-received");
ObservationPtr pkt6_infreq_rcvd = mgr.getObservation("pkt6-infrequest-received");
ObservationPtr pkt6_reply_sent = mgr.getObservation("pkt6-reply-sent");
ObservationPtr pkt6_sent = mgr.getObservation("pkt6-sent");
ASSERT_TRUE(pkt6_rcvd);
ASSERT_TRUE(pkt6_infreq_rcvd);
ASSERT_TRUE(pkt6_reply_sent);
ASSERT_TRUE(pkt6_sent);
EXPECT_EQ(0, pkt6_rcvd->getInteger().first);
EXPECT_EQ(0, pkt6_infreq_rcvd->getInteger().first);
EXPECT_EQ(0, pkt6_reply_sent->getInteger().first);
EXPECT_EQ(0, pkt6_sent->getInteger().first);
// Perform 2-way exchange (Inf-request/reply)
client.requestOption(D6O_NAME_SERVERS);
ASSERT_NO_THROW(client.doInfRequest());
// Confirm that there's a response
Pkt6Ptr response = client.getContext().response_;
ASSERT_TRUE(response);
pkt6_rcvd = mgr.getObservation("pkt6-received");
pkt6_infreq_rcvd = mgr.getObservation("pkt6-infrequest-received");
pkt6_reply_sent = mgr.getObservation("pkt6-reply-sent");
pkt6_sent = mgr.getObservation("pkt6-sent");
ASSERT_TRUE(pkt6_rcvd);
ASSERT_TRUE(pkt6_infreq_rcvd);
ASSERT_TRUE(pkt6_reply_sent);
ASSERT_TRUE(pkt6_sent);
// They also must have expected values.
EXPECT_EQ(1, pkt6_rcvd->getInteger().first);
EXPECT_EQ(1, pkt6_infreq_rcvd->getInteger().first);
EXPECT_EQ(1, pkt6_reply_sent->getInteger().first);
EXPECT_EQ(1, pkt6_sent->getInteger().first);
}
} // end of anonymous namespace
|