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/* -*- C++ -*-; c-basic-offset: 4; indent-tabs-mode: nil */
/*
* Copyright (c) 2018 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
#include <boost/optional.hpp>
#include <opflexagent/PolicyManager.h>
#include <modelgbp/gbp/ExternalInterface.hpp>
#include <modelgbp/gbp/L3ExternalDomain.hpp>
#include <modelgbp/gbp/Subnet.hpp>
#include <vom/bridge_domain_arp_entry.hpp>
#include <vom/gbp_ext_itf.hpp>
#include <vom/gbp_subnet.hpp>
#include <vom/l3_binding.hpp>
#include <vom/route.hpp>
#include "VppEndPointGroupManager.hpp"
#include "VppExtItfManager.hpp"
#include "VppLog.hpp"
#include "VppRouteManager.hpp"
#include "VppUtil.hpp"
using namespace VOM;
namespace VPP
{
ExtItfManager::ExtItfManager(Runtime &runtime)
: m_runtime(runtime)
{
}
void
ExtItfManager::handle_update(const opflex::modb::URI &uri)
{
OM::mark_n_sweep ms(uri.toString());
const std::string &uuid = uri.toString();
boost::optional<std::shared_ptr<modelgbp::gbp::ExternalInterface>> ext_itf =
modelgbp::gbp::ExternalInterface::resolve(
m_runtime.agent.getFramework(), uri);
if (!ext_itf)
{
VLOGD << "External-Interface; delete: " << uri;
return;
}
VLOGD << "External-Interface; update: " << uri;
boost::optional<std::shared_ptr<modelgbp::gbp::ExternalL3BridgeDomain>>
op_bd = m_runtime.policy_manager().getBDForExternalInterface(uri);
if (!op_bd)
{
VLOGE << "External-Interface; no ExternalBridgeDomain: " << uri;
return;
}
boost::optional<std::shared_ptr<modelgbp::gbp::RoutingDomain>> op_rd =
m_runtime.policy_manager().getRDForExternalInterface(uri);
if (!op_rd)
{
VLOGE << "External-Interface; no RouteDomain: " << uri;
return;
}
uint32_t rd_id = m_runtime.id_gen.get(
modelgbp::gbp::RoutingDomain::CLASS_ID, op_rd.get()->getURI());
route_domain rd(rd_id);
OM::write(uuid, rd);
uint32_t bd_id = m_runtime.id_gen.get(modelgbp::gbp::BridgeDomain::CLASS_ID,
op_bd.get()->getURI());
bridge_domain bd(bd_id, bridge_domain::learning_mode_t::OFF);
OM::write(uuid, bd);
/*
* Create a BVI interface for the EPG and add it to the bridge-domain
*/
std::shared_ptr<interface> bvi = EndPointGroupManager::mk_bvi(
m_runtime, uuid, bd, rd, mac_from_modb(ext_itf.get()->getMac()));
/*
* Add the mcast tunnels for flooding
*/
boost::optional<std::string> maddr =
m_runtime.policy_manager().getBDMulticastIPForExternalInterface(uri);
boost::optional<uint32_t> bd_vnid =
m_runtime.policy_manager().getBDVnidForExternalInterface(uri);
boost::optional<uint32_t> rd_vnid =
m_runtime.policy_manager().getRDVnidForExternalInterface(uri);
if (!(rd_vnid && bd_vnid && maddr))
{
VLOGE << "External-Interface; no VNI/mcast-address: " << uri;
return;
}
std::shared_ptr<vxlan_tunnel> vt_mc = EndPointGroupManager::mk_mcast_tunnel(
m_runtime, uuid, bd_vnid.get(), maddr.get());
/*
* there's no leanring of EPs in an external BD
*/
gbp_bridge_domain gbd(
bd, *bvi, {}, vt_mc, gbp_bridge_domain::flags_t::DO_NOT_LEARN);
OM::write(uuid, gbd);
std::shared_ptr<VOM::gbp_route_domain> grd =
EndPointGroupManager::mk_gbp_rd(m_runtime, uuid, rd, rd_vnid.get());
/*
* the encap on the external-interface is a vlan ID
*/
boost::optional<uint32_t> vlan_id = ext_itf.get()->getEncap();
if (vlan_id)
;
/*
* Add the /32 to the BVI
*/
boost::optional<const std::string &> s_addr = ext_itf.get()->getAddress();
if (!s_addr)
{
VLOGI << "External-Interface; no prefix: " << uri;
return;
}
boost::asio::ip::address p_addr =
boost::asio::ip::address::from_string(s_addr.get());
l3_binding l3b(*bvi, {p_addr});
OM::write(uuid, l3b);
bridge_domain_arp_entry bae(bd, p_addr, bvi->l2_address().to_mac());
OM::write(uuid, bae);
opflexagent::PolicyManager::subnet_vector_t subnets;
m_runtime.policy_manager().getSubnetsForExternalInterface(uri, subnets);
for (auto sn : subnets)
{
if (!sn->getPrefixLen() || !sn->getAddress()) continue;
route::prefix_t pfx(sn->getAddress().get(), sn->getPrefixLen().get());
route::ip_route ipr(rd, pfx, {route::path::special_t::DROP});
OM::write(uuid, ipr);
}
/*
* This BVI is the ExternalInterface
*/
gbp_ext_itf gei(*bvi, gbd, *grd);
OM::write(uuid, gei);
/*
* Add any external networks
*/
boost::optional<std::shared_ptr<modelgbp::gbp::L3ExternalDomain>> ext_dom =
m_runtime.policy_manager().getExternalDomainForExternalInterface(uri);
if (!ext_dom)
{
VLOGI << "External-Interface; no ExternalDomain: " << uri;
return;
}
RouteManager::mk_ext_nets(m_runtime, rd, uri, ext_dom.get());
}
}; // namepsace VPP
/*
* Local Variables:
* eval: (c-set-style "llvm.org")
* End:
*/
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