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Commit 3eebafd7 authored by Marcin Siodelski's avatar Marcin Siodelski
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[3336] DHCPv4 server includes renew and rebind timers when specified.

parent 31decdfa
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Showing with 149 additions and 38 deletions
src/bin/dhcp4/dhcp4_srv.cc
View file @ 3eebafd7
......@@ -1044,15 +1044,28 @@ Dhcpv4Srv::assignLease(const Pkt4Ptr& question, Pkt4Ptr& answer) {
}
// IP Address Lease time (type 51)
opt = OptionPtr(new Option(Option::V4, DHO_DHCP_LEASE_TIME));
opt->setUint32(lease->valid_lft_);
opt.reset(new OptionUint32(Option::V4, DHO_DHCP_LEASE_TIME,
lease->valid_lft_));
answer->addOption(opt);
// Subnet mask (type 1)
answer->addOption(getNetmaskOption(subnet));
/// @todo: send renew timer option (T1, option 58)
/// @todo: send rebind timer option (T2, option 59)
// renewal-timer (type 58)
if (!subnet->getT1().unspecified()) {
OptionUint32Ptr t1(new OptionUint32(Option::V4,
DHO_DHCP_RENEWAL_TIME,
subnet->getT1()));
answer->addOption(t1);
}
// rebind timer (type 59)
if (!subnet->getT2().unspecified()) {
OptionUint32Ptr t2(new OptionUint32(Option::V4,
DHO_DHCP_REBINDING_TIME,
subnet->getT2()));
answer->addOption(t2);
}
// Create NameChangeRequests if DDNS is enabled and this is a
// real allocation.
......
src/bin/dhcp4/tests/dhcp4_srv_unittest.cc
View file @ 3eebafd7
......@@ -558,13 +558,51 @@ TEST_F(Dhcpv4SrvTest, DiscoverBasic) {
// Check that address was returned from proper range, that its lease
// lifetime is correct, that T1 and T2 are returned properly
checkAddressParams(offer, subnet_);
checkAddressParams(offer, subnet_, true, true);
// Check identifiers
checkServerId(offer, srv->getServerID());
checkClientId(offer, clientid);
}
// Check that option 58 and 59 are not included if they are not specified.
TEST_F(Dhcpv4SrvTest, DiscoverNoTimers) {
IfaceMgrTestConfig test_config(true);
IfaceMgr::instance().openSockets4();
boost::scoped_ptr<NakedDhcpv4Srv> srv;
ASSERT_NO_THROW(srv.reset(new NakedDhcpv4Srv(0)));
Pkt4Ptr dis = Pkt4Ptr(new Pkt4(DHCPDISCOVER, 1234));
dis->setRemoteAddr(IOAddress("192.0.2.1"));
OptionPtr clientid = generateClientId();
dis->addOption(clientid);
dis->setIface("eth1");
// Recreate a subnet but set T1 and T2 to "unspecified".
subnet_.reset(new Subnet4(IOAddress("192.0.2.0"), 24,
Triplet<uint32_t>(),
Triplet<uint32_t>(),
3000));
pool_ = Pool4Ptr(new Pool4(IOAddress("192.0.2.100"),
IOAddress("192.0.2.110")));
subnet_->addPool(pool_);
CfgMgr::instance().deleteSubnets4();
CfgMgr::instance().addSubnet4(subnet_);
// Pass it to the server and get an offer
Pkt4Ptr offer = srv->processDiscover(dis);
// Check if we get response at all
checkResponse(offer, DHCPOFFER, 1234);
// T1 and T2 timers must not be present.
checkAddressParams(offer, subnet_, false, false);
// Check identifiers
checkServerId(offer, srv->getServerID());
checkClientId(offer, clientid);
}
// This test verifies that incoming DISCOVER can be handled properly, that an
// OFFER is generated, that the response has an address and that address
......@@ -601,7 +639,7 @@ TEST_F(Dhcpv4SrvTest, DiscoverHint) {
// Check that address was returned from proper range, that its lease
// lifetime is correct, that T1 and T2 are returned properly
checkAddressParams(offer, subnet_);
checkAddressParams(offer, subnet_, true, true);
EXPECT_EQ(offer->getYiaddr(), hint);
......@@ -644,7 +682,7 @@ TEST_F(Dhcpv4SrvTest, DiscoverNoClientId) {
// Check that address was returned from proper range, that its lease
// lifetime is correct, that T1 and T2 are returned properly
checkAddressParams(offer, subnet_);
checkAddressParams(offer, subnet_, true, true);
EXPECT_EQ(offer->getYiaddr(), hint);
......@@ -687,7 +725,7 @@ TEST_F(Dhcpv4SrvTest, DiscoverInvalidHint) {
// Check that address was returned from proper range, that its lease
// lifetime is correct, that T1 and T2 are returned properly
checkAddressParams(offer, subnet_);
checkAddressParams(offer, subnet_, true, true);
EXPECT_NE(offer->getYiaddr(), hint);
......@@ -750,9 +788,9 @@ TEST_F(Dhcpv4SrvTest, ManyDiscovers) {
IOAddress addr3 = offer3->getYiaddr();
// Check that the assigned address is indeed from the configured pool
checkAddressParams(offer1, subnet_);
checkAddressParams(offer2, subnet_);
checkAddressParams(offer3, subnet_);
checkAddressParams(offer1, subnet_, true, true);
checkAddressParams(offer2, subnet_, true, true);
checkAddressParams(offer3, subnet_, true, true);
// Check server-ids
checkServerId(offer1, srv->getServerID());
......@@ -840,7 +878,7 @@ TEST_F(Dhcpv4SrvTest, RequestBasic) {
// Check that address was returned from proper range, that its lease
// lifetime is correct, that T1 and T2 are returned properly
checkAddressParams(ack, subnet_);
checkAddressParams(ack, subnet_, true, true);
// Check identifiers
checkServerId(ack, srv->getServerID());
......@@ -853,6 +891,45 @@ TEST_F(Dhcpv4SrvTest, RequestBasic) {
LeaseMgrFactory::instance().deleteLease(l->addr_);
}
// Check that option 58 and 59 are not included if they are not specified.
TEST_F(Dhcpv4SrvTest, RequestNoTimers) {
IfaceMgrTestConfig test_config(true);
IfaceMgr::instance().openSockets4();
boost::scoped_ptr<NakedDhcpv4Srv> srv;
ASSERT_NO_THROW(srv.reset(new NakedDhcpv4Srv(0)));
Pkt4Ptr req = Pkt4Ptr(new Pkt4(DHCPREQUEST, 1234));
req->setRemoteAddr(IOAddress("192.0.2.1"));
OptionPtr clientid = generateClientId();
req->addOption(clientid);
req->setIface("eth1");
// Recreate a subnet but set T1 and T2 to "unspecified".
subnet_.reset(new Subnet4(IOAddress("192.0.2.0"), 24,
Triplet<uint32_t>(),
Triplet<uint32_t>(),
3000));
pool_ = Pool4Ptr(new Pool4(IOAddress("192.0.2.100"),
IOAddress("192.0.2.110")));
subnet_->addPool(pool_);
CfgMgr::instance().deleteSubnets4();
CfgMgr::instance().addSubnet4(subnet_);
// Pass it to the server and get an ACK.
Pkt4Ptr ack = srv->processRequest(req);
// Check if we get response at all
checkResponse(ack, DHCPACK, 1234);
// T1 and T2 timers must not be present.
checkAddressParams(ack, subnet_, false, false);
// Check identifiers
checkServerId(ack, srv->getServerID());
checkClientId(ack, clientid);
}
// This test verifies that incoming REQUEST can be handled properly, that an
// ACK is generated, that the response has an address and that address
// really belongs to the configured pool.
......@@ -927,9 +1004,9 @@ TEST_F(Dhcpv4SrvTest, ManyRequests) {
EXPECT_EQ(req_addr3, addr3);
// Check that the assigned address is indeed from the configured pool
checkAddressParams(ack1, subnet_);
checkAddressParams(ack2, subnet_);
checkAddressParams(ack3, subnet_);
checkAddressParams(ack1, subnet_, true, true);
checkAddressParams(ack2, subnet_, true, true);
checkAddressParams(ack3, subnet_, true, true);
// Check DUIDs
checkServerId(ack1, srv->getServerID());
......@@ -1049,7 +1126,7 @@ TEST_F(Dhcpv4SrvTest, RenewBasic) {
// Check that address was returned from proper range, that its lease
// lifetime is correct, that T1 and T2 are returned properly
checkAddressParams(ack, subnet_);
checkAddressParams(ack, subnet_, true, true);
// Check identifiers
checkServerId(ack, srv->getServerID());
......
src/bin/dhcp4/tests/dhcp4_test_utils.cc
View file @ 3eebafd7
......@@ -20,6 +20,7 @@
#include <dhcp4/config_parser.h>
#include <dhcp4/tests/dhcp4_test_utils.h>
#include <dhcp/option4_addrlst.h>
#include <dhcp/option_int.h>
#include <dhcp/option_int_array.h>
#include <dhcp/option_custom.h>
#include <dhcp/iface_mgr.h>
......@@ -238,9 +239,10 @@ HWAddrPtr Dhcpv4SrvTest::generateHWAddr(size_t size /*= 6*/) {
return (HWAddrPtr(new HWAddr(mac, hw_type)));
}
void Dhcpv4SrvTest::checkAddressParams(const Pkt4Ptr& rsp, const SubnetPtr subnet,
bool t1_mandatory /*= false*/,
bool t2_mandatory /*= false*/) {
void Dhcpv4SrvTest::checkAddressParams(const Pkt4Ptr& rsp,
const SubnetPtr subnet,
bool t1_present,
bool t2_present /*= false*/) {
// Technically inPool implies inRange, but let's be on the safe
// side and check both.
......@@ -248,31 +250,32 @@ void Dhcpv4SrvTest::checkAddressParams(const Pkt4Ptr& rsp, const SubnetPtr subne
EXPECT_TRUE(subnet->inPool(Lease::TYPE_V4, rsp->getYiaddr()));
// Check lease time
OptionPtr opt = rsp->getOption(DHO_DHCP_LEASE_TIME);
OptionUint32Ptr opt = boost::dynamic_pointer_cast<
OptionUint32>(rsp->getOption(DHO_DHCP_LEASE_TIME));
if (!opt) {
ADD_FAILURE() << "Lease time option missing in response";
} else {
EXPECT_EQ(opt->getUint32(), subnet->getValid());
EXPECT_EQ(opt->getValue(), subnet->getValid());
}
// Check T1 timer
opt = rsp->getOption(DHO_DHCP_RENEWAL_TIME);
if (opt) {
EXPECT_EQ(opt->getUint32(), subnet->getT1());
opt = boost::dynamic_pointer_cast<
OptionUint32>(rsp->getOption(DHO_DHCP_RENEWAL_TIME));
if (t1_present) {
ASSERT_TRUE(opt) << "Required T1 option missing";
EXPECT_EQ(opt->getValue(), subnet->getT1());
} else {
if (t1_mandatory) {
ADD_FAILURE() << "Required T1 option missing";
}
EXPECT_FALSE(opt);
}
// Check T2 timer
opt = rsp->getOption(DHO_DHCP_REBINDING_TIME);
if (opt) {
EXPECT_EQ(opt->getUint32(), subnet->getT2());
opt = boost::dynamic_pointer_cast<
OptionUint32>(rsp->getOption(DHO_DHCP_REBINDING_TIME));
if (t2_present) {
ASSERT_TRUE(opt) << "Required T2 option missing";
EXPECT_EQ(opt->getValue(), subnet->getT2());
} else {
if (t2_mandatory) {
ADD_FAILURE() << "Required T2 option missing";
}
EXPECT_FALSE(opt);
}
}
......
src/bin/dhcp4/tests/dhcp4_test_utils.h
View file @ 3eebafd7
......@@ -290,11 +290,13 @@ public:
/// @param rsp response to be checked
/// @param subnet subnet that should be used to verify assigned address
/// and options
/// @param t1_mandatory is T1 mandatory?
/// @param t2_mandatory is T2 mandatory?
/// @param t1_present check that t1 must be present (true) or must not be
/// present (false)
/// @param t2_present check that t2 must be present (true) or must not be
/// present (false)
void checkAddressParams(const Pkt4Ptr& rsp, const SubnetPtr subnet,
bool t1_mandatory = false,
bool t2_mandatory = false);
bool t1_present = false,
bool t2_present = false);
/// @brief Basic checks for generated response (message type and trans-id).
///
......
src/lib/dhcp/option_int.h
View file @ 3eebafd7
// Copyright (C) 2012-2013 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2012-2014 Internet Systems Consortium, Inc. ("ISC")
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
......@@ -25,6 +25,22 @@
namespace isc {
namespace dhcp {
template<typename T>
class OptionInt;
/// @defgroup option_int_array_defs Typedefs for OptionInt class.
///
/// @brief Classes that represent options comprising an integer.
///
/// @{
typedef OptionInt<uint8_t> OptionUint8;
typedef boost::shared_ptr<OptionUint8> OptionUint8Ptr;
typedef OptionInt<uint16_t> OptionUint16;
typedef boost::shared_ptr<OptionUint16> OptionUint16Ptr;
typedef OptionInt<uint32_t> OptionUint32;
typedef boost::shared_ptr<OptionUint32> OptionUint32Ptr;
/// @}
/// This template class represents DHCP option with single value.
/// This value is of integer type and can be any of the following:
/// - uint8_t,
......
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