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// Copyright (C) 2017-2018 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/dhcp4.h>
#include <dhcp/option_custom.h>
#include <dhcp/option_space.h>
#include <dhcpsrv/network.h>
#include <boost/pointer_cast.hpp>
using namespace isc::asiolink;
using namespace isc::data;
namespace isc {
namespace dhcp {
void
Network::RelayInfo::addAddress(const asiolink::IOAddress& addr) {
if (containsAddress(addr)) {
isc_throw (BadValue, "RelayInfo already contains address: "
<< addr.toText());
}
addresses_.push_back(addr);
}
bool
Network::RelayInfo::hasAddresses() const {
return (!addresses_.empty());
}
bool
Network::RelayInfo::containsAddress(const asiolink::IOAddress& addr) const {
for (auto address = addresses_.begin(); address != addresses_.end();
++address) {
if ((*address) == addr) {
return (true);
}
}
return (false);
}
const IOAddressList&
Network::RelayInfo::getAddresses() const {
return (addresses_);
}
void
Network::addRelayAddress(const asiolink::IOAddress& addr) {
relay_.addAddress(addr);
}
bool
Network::hasRelays() const {
return (relay_.hasAddresses());
}
bool
Network::hasRelayAddress(const asiolink::IOAddress& addr) const {
return (relay_.containsAddress(addr));
}
const IOAddressList&
Network::getRelayAddresses() const {
return (relay_.getAddresses());
}
bool
Network::clientSupported(const isc::dhcp::ClientClasses& classes) const {
if (client_class_.empty()) {
// There is no class defined for this network, so we do
// support everyone.
return (true);
}
return (classes.contains(client_class_));
}
void
Network::allowClientClass(const isc::dhcp::ClientClass& class_name) {
client_class_ = class_name;
}
void
Network::requireClientClass(const isc::dhcp::ClientClass& class_name) {
if (!required_classes_.contains(class_name)) {
required_classes_.insert(class_name);
}
}
const ClientClasses&
Network::getRequiredClasses() const {
return (required_classes_);
}
ElementPtr
Network::toElement() const {
ElementPtr map = Element::createMap();
// Set user-context
contextToElement(map);
// Set interface
const std::string& iface = getIface();
if (!iface.empty()) {
map->set("interface", Element::create(iface));
}
ElementPtr relay_map = Element::createMap();
ElementPtr address_list = Element::createList();
const IOAddressList addresses = getRelayAddresses();
for (auto address = addresses.begin(); address != addresses.end(); ++address) {
address_list->add(Element::create((*address).toText()));
}
relay_map->set("ip-addresses", address_list);
map->set("relay", relay_map);
// Set client-class
const ClientClass& cclass = getClientClass();
if (!cclass.empty()) {
map->set("client-class", Element::create(cclass));
}
// Set require-client-classes
const ClientClasses& classes = getRequiredClasses();
if (!classes.empty()) {
ElementPtr class_list = Element::createList();
for (ClientClasses::const_iterator it = classes.cbegin();
it != classes.cend(); ++it) {
class_list->add(Element::create(*it));
}
map->set("require-client-classes", class_list);
}
// Set renew-timer
map->set("renew-timer",
Element::create(static_cast<long long>
(getT1().get())));
// Set rebind-timer
map->set("rebind-timer",
Element::create(static_cast<long long>
(getT2().get())));
// Set valid-lifetime
map->set("valid-lifetime",
Element::create(static_cast<long long>
(getValid().get())));
// Set reservation mode
Network::HRMode hrmode = getHostReservationMode();
std::string mode;
switch (hrmode) {
case HR_DISABLED:
mode = "disabled";
break;
case HR_OUT_OF_POOL:
mode = "out-of-pool";
break;
case HR_ALL:
mode = "all";
break;
default:
isc_throw(ToElementError,
"invalid host reservation mode: " << hrmode);
}
map->set("reservation-mode", Element::create(mode));
// Set options
ConstCfgOptionPtr opts = getCfgOption();
map->set("option-data", opts->toElement());
return (map);
}
ElementPtr
Network4::toElement() const {
ElementPtr map = Network::toElement();
// Set match-client-id
map->set("match-client-id", Element::create(getMatchClientId()));
return (map);
}
IOAddress
Network4::getServerId() const {
try {
OptionCustomPtr opt_server_id = boost::dynamic_pointer_cast<OptionCustom>
(cfg_option_->get(DHCP4_OPTION_SPACE, DHO_DHCP_SERVER_IDENTIFIER).option_);
if (opt_server_id) {
return (opt_server_id->readAddress());
}
} catch (const std::exception&) {
// Ignore any exceptions and simply return empty buffer.
}
return (IOAddress::IPV4_ZERO_ADDRESS());
}
ElementPtr
Network6::toElement() const {
ElementPtr map = Network::toElement();
// Set preferred-lifetime
map->set("preferred-lifetime",
Element::create(static_cast<long long>
(getPreferred().get())));
// Set interface-id
const OptionPtr& ifaceid = getInterfaceId();
if (ifaceid) {
std::vector<uint8_t> bin = ifaceid->getData();
std::string ifid;
ifid.resize(bin.size());
if (!bin.empty()) {
std::memcpy(&ifid[0], &bin[0], bin.size());
}
map->set("interface-id", Element::create(ifid));
}
// Set rapid-commit
bool rapid_commit = getRapidCommit();
map->set("rapid-commit", Element::create(rapid_commit));
return (map);
}
} // end of namespace isc::dhcp
} // end of namespace isc
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