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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "vom/neighbour.hpp"
#include "vom/neighbour_cmds.hpp"
#include "vom/singular_db_funcs.hpp"
namespace VOM {
singular_db<neighbour::key_t, neighbour> neighbour::m_db;
neighbour::event_handler neighbour::m_evh;
neighbour::neighbour(const interface& itf,
const boost::asio::ip::address& ip_addr,
const mac_address_t& mac)
: m_hw(false)
, m_itf(itf.singular())
, m_ip_addr(ip_addr)
, m_mac(mac)
{
}
neighbour::neighbour(const neighbour& bde)
: m_hw(bde.m_hw)
, m_itf(bde.m_itf)
, m_ip_addr(bde.m_ip_addr)
, m_mac(bde.m_mac)
{
}
neighbour::~neighbour()
{
sweep();
// not in the DB anymore.
m_db.release(key(), this);
}
bool
neighbour::operator==(const neighbour& n) const
{
return ((key() == n.key()) && (m_mac == n.m_mac));
}
const neighbour::key_t
neighbour::key() const
{
return (std::make_pair(m_itf->key(), m_ip_addr));
}
void
neighbour::sweep()
{
if (m_hw) {
HW::enqueue(
new neighbour_cmds::delete_cmd(m_hw, m_itf->handle(), m_mac, m_ip_addr));
}
HW::write();
}
void
neighbour::replay()
{
if (m_hw) {
HW::enqueue(
new neighbour_cmds::create_cmd(m_hw, m_itf->handle(), m_mac, m_ip_addr));
}
}
std::string
neighbour::to_string() const
{
std::ostringstream s;
s << "neighbour:[" << m_itf->to_string() << ", " << m_mac.to_string() << ", "
<< m_ip_addr.to_string() << "]";
return (s.str());
}
void
neighbour::update(const neighbour& r)
{
/*
* create the table if it is not yet created
*/
if (rc_t::OK != m_hw.rc()) {
HW::enqueue(
new neighbour_cmds::create_cmd(m_hw, m_itf->handle(), m_mac, m_ip_addr));
}
}
std::shared_ptr<neighbour>
neighbour::find_or_add(const neighbour& temp)
{
return (m_db.find_or_add(temp.key(), temp));
}
std::shared_ptr<neighbour>
neighbour::find(const key_t& k)
{
return (m_db.find(k));
}
std::shared_ptr<neighbour>
neighbour::singular() const
{
return find_or_add(*this);
}
void
neighbour::dump(std::ostream& os)
{
db_dump(m_db, os);
}
std::ostream&
operator<<(std::ostream& os, const neighbour::key_t& key)
{
os << "[" << key.first << ", " << key.second << "]";
return (os);
}
neighbour::event_handler::event_handler()
{
OM::register_listener(this);
inspect::register_handler({ "neighbour" }, "Neighbours", this);
}
void
neighbour::event_handler::handle_replay()
{
m_db.replay();
}
void
neighbour::populate_i(const client_db::key_t& key,
std::shared_ptr<interface> itf,
const l3_proto_t& proto)
{
/*
* dump VPP current states
*/
std::shared_ptr<neighbour_cmds::dump_cmd> cmd =
std::make_shared<neighbour_cmds::dump_cmd>(
neighbour_cmds::dump_cmd(itf->handle(), proto));
HW::enqueue(cmd);
HW::write();
for (auto& record : *cmd) {
/*
* construct a neighbour from each recieved record.
*/
auto& payload = record.get_payload();
mac_address_t mac(payload.mac_address);
boost::asio::ip::address ip_addr =
from_bytes(payload.is_ipv6, payload.ip_address);
neighbour n(*itf, ip_addr, mac);
VOM_LOG(log_level_t::DEBUG) << "neighbour-dump: " << itf->to_string()
<< mac.to_string() << ip_addr.to_string();
/*
* Write each of the discovered interfaces into the OM,
* but disable the HW Command q whilst we do, so that no
* commands are sent to VPP
*/
OM::commit(key, n);
}
}
void
neighbour::event_handler::handle_populate(const client_db::key_t& key)
{
auto it = interface::cbegin();
while (it != interface::cend()) {
neighbour::populate_i(key, it->second.lock(), l3_proto_t::IPV4);
neighbour::populate_i(key, it->second.lock(), l3_proto_t::IPV6);
++it;
}
}
dependency_t
neighbour::event_handler::order() const
{
return (dependency_t::ENTRY);
}
void
neighbour::event_handler::show(std::ostream& os)
{
db_dump(m_db, os);
}
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "mozilla")
* End:
*/
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