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209 | // Copyright (C) 2014-2024 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/pkt_filter.h>
#include <dhcp/pkt_filter_inet.h>
#include <dhcp/pkt_filter_inet6.h>
#include <dhcp/testutils/iface_mgr_test_config.h>
#include <dhcp/testutils/pkt_filter_test_stub.h>
#include <dhcp/testutils/pkt_filter6_test_stub.h>
using namespace isc::asiolink;
namespace isc {
namespace dhcp {
namespace test {
IfaceMgrTestConfig::IfaceMgrTestConfig(const bool default_config) {
IfaceMgr::instance().setTestMode(true);
IfaceMgr::instance().closeSockets();
IfaceMgr::instance().clearIfaces();
IfaceMgr::instance().getPacketQueueMgr4()->destroyPacketQueue();
IfaceMgr::instance().getPacketQueueMgr6()->destroyPacketQueue();
packet_filter4_ = PktFilterPtr(new PktFilterTestStub());
packet_filter6_ = PktFilter6Ptr(new PktFilter6TestStub());
IfaceMgr::instance().setPacketFilter(packet_filter4_);
IfaceMgr::instance().setPacketFilter(packet_filter6_);
// Create default set of fake interfaces: lo, eth0, eth1 and eth1961.
if (default_config) {
createIfaces();
}
}
IfaceMgrTestConfig::~IfaceMgrTestConfig() {
IfaceMgr::instance().stopDHCPReceiver();
IfaceMgr::instance().closeSockets();
IfaceMgr::instance().getPacketQueueMgr4()->destroyPacketQueue();
IfaceMgr::instance().getPacketQueueMgr6()->destroyPacketQueue();
IfaceMgr::instance().clearIfaces();
IfaceMgr::instance().setPacketFilter(PktFilterPtr(new PktFilterInet()));
IfaceMgr::instance().setPacketFilter(PktFilter6Ptr(new PktFilterInet6()));
IfaceMgr::instance().setTestMode(false);
IfaceMgr::instance().detectIfaces();
}
void
IfaceMgrTestConfig::addAddress(const std::string& iface_name,
const IOAddress& address) {
IfacePtr iface = IfaceMgr::instance().getIface(iface_name);
if (!iface) {
isc_throw(isc::BadValue, "interface '" << iface_name
<< "' doesn't exist");
}
iface->addAddress(address);
}
void
IfaceMgrTestConfig::addIface(const IfacePtr& iface) {
IfaceMgr::instance().addInterface(iface);
}
void
IfaceMgrTestConfig::addIface(const std::string& name,
const unsigned int ifindex) {
IfaceMgr::instance().addInterface(createIface(name, ifindex));
}
IfacePtr
IfaceMgrTestConfig::createIface(const std::string& name,
const unsigned int ifindex,
const std::string& mac) {
IfacePtr iface(new Iface(name, ifindex));
if (name == "lo") {
iface->flag_loopback_ = true;
// Don't open sockets on the loopback interface.
iface->inactive4_ = true;
iface->inactive6_ = true;
} else {
iface->inactive4_ = false;
iface->inactive6_ = false;
}
iface->flag_multicast_ = true;
// On BSD systems, the SO_BINDTODEVICE option is not supported.
// Therefore the IfaceMgr will throw an exception on attempt to
// open sockets on more than one broadcast-capable interface at
// the same time. In order to prevent this error, we mark all
// interfaces broadcast-incapable for unit testing.
iface->flag_broadcast_ = false;
iface->flag_up_ = true;
iface->flag_running_ = true;
// Set MAC address.
HWAddr hwaddr = HWAddr::fromText(mac);
std::vector<uint8_t> mac_vec = hwaddr.hwaddr_;
iface->setMac(&mac_vec[0], mac_vec.size());
iface->setHWType(HTYPE_ETHER);
return (iface);
}
void
IfaceMgrTestConfig::createIfaces() {
// local loopback
addIface("lo", LO_INDEX);
addAddress("lo", IOAddress("127.0.0.1"));
addAddress("lo", IOAddress("::1"));
// eth0
addIface("eth0", ETH0_INDEX);
addAddress("eth0", IOAddress("10.0.0.1"));
addAddress("eth0", IOAddress("fe80::3a60:77ff:fed5:cdef"));
addAddress("eth0", IOAddress("2001:db8:1::1"));
// eth1
addIface("eth1", ETH1_INDEX);
addAddress("eth1", IOAddress("192.0.2.3"));
addAddress("eth1", IOAddress("192.0.2.5"));
addAddress("eth1", IOAddress("fe80::3a60:77ff:fed5:abcd"));
// eth1961
addIface("eth1961", ETH1961_INDEX);
addAddress("eth1961", IOAddress("198.51.100.1"));
addAddress("eth1961", IOAddress("fe80::3a60:77ff:fed5:9876"));
}
void
IfaceMgrTestConfig::setDirectResponse(const bool direct_resp) {
boost::shared_ptr<PktFilterTestStub> stub =
boost::dynamic_pointer_cast<PktFilterTestStub>(getPacketFilter4());
if (!stub) {
isc_throw(isc::Unexpected, "unable to set direct response capability for"
" test packet filter - current packet filter is not"
" of a PktFilterTestStub");
}
stub->direct_response_supported_ = direct_resp;
}
void
IfaceMgrTestConfig::setIfaceFlags(const std::string& name,
const FlagLoopback& loopback,
const FlagUp& up,
const FlagRunning& running,
const FlagInactive4& inactive4,
const FlagInactive6& inactive6) {
IfacePtr iface = IfaceMgr::instance().getIface(name);
if (iface == NULL) {
isc_throw(isc::BadValue, "interface '" << name << "' doesn't exist");
}
iface->flag_loopback_ = loopback.flag_;
iface->flag_up_ = up.flag_;
iface->flag_running_ = running.flag_;
iface->inactive4_ = inactive4.flag_;
iface->inactive6_ = inactive6.flag_;
}
bool
IfaceMgrTestConfig::socketOpen(const std::string& iface_name,
const int family) const {
IfacePtr iface = IfaceMgr::instance().getIface(iface_name);
if (iface == NULL) {
isc_throw(Unexpected, "No such interface '" << iface_name << "'");
}
for (auto const& sock : iface->getSockets()) {<--- Consider using std::any_of algorithm instead of a raw loop.
if (sock.family_ == family) {
return (true);
}
}
return (false);
}
bool
IfaceMgrTestConfig::socketOpen(const std::string& iface_name,
const std::string& address) const {
IfacePtr iface = IfaceMgr::instance().getIface(iface_name);
if (!iface) {
isc_throw(Unexpected, "No such interface '" << iface_name << "'");
}
for (auto const& sock : iface->getSockets()) {<--- Consider using std::any_of algorithm instead of a raw loop.
if ((sock.family_ == AF_INET) &&
(sock.addr_ == IOAddress(address))) {
return (true);
}
}
return (false);
}
bool
IfaceMgrTestConfig::unicastOpen(const std::string& iface_name) const {
IfacePtr iface = IfaceMgr::instance().getIface(iface_name);
if (!iface) {
isc_throw(Unexpected, "No such interface '" << iface_name << "'");
}
for (auto const& sock : iface->getSockets()) {
if ((!sock.addr_.isV6LinkLocal()) &&
(!sock.addr_.isV6Multicast())) {<--- Consider using std::any_of algorithm instead of a raw loop.
return (true);
}
}
return (false);
}
} // end of namespace isc::dhcp::test
} // end of namespace isc::dhcp
} // end of namespace isc
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