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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/nat_binding.hpp"
#include "vom/cmd.hpp"
namespace VOM {
singular_db<const nat_binding::key_t, nat_binding> nat_binding::m_db;
nat_binding::event_handler nat_binding::m_evh;
const nat_binding::zone_t nat_binding::zone_t::INSIDE(0, "inside");
const nat_binding::zone_t nat_binding::zone_t::OUTSIDE(0, "outside");
nat_binding::zone_t::zone_t(int v, const std::string s)
: enum_base(v, s)
{
}
/**
* Construct a new object matching the desried state
*/
nat_binding::nat_binding(const interface& itf,
const direction_t& dir,
const l3_proto_t& proto,
const zone_t& zone)
: m_binding(false)
, m_itf(itf.singular())
, m_dir(dir)
, m_proto(proto)
, m_zone(zone)
{
}
nat_binding::nat_binding(const nat_binding& o)
: m_binding(o.m_binding)
, m_itf(o.m_itf)
, m_dir(o.m_dir)
, m_proto(o.m_proto)
, m_zone(o.m_zone)
{
}
nat_binding::~nat_binding()
{
sweep();
m_db.release(make_tuple(m_itf->key(), m_dir, m_proto), this);
}
void
nat_binding::sweep()
{
if (m_binding) {
if (direction_t::INPUT == m_dir) {
HW::enqueue(new unbind_44_input_cmd(m_binding, m_itf->handle(), m_zone));
} else {
assert(!"Unimplemented");
}
}
HW::write();
}
void
nat_binding::replay()
{
if (m_binding) {
if (direction_t::INPUT == m_dir) {
HW::enqueue(new bind_44_input_cmd(m_binding, m_itf->handle(), m_zone));
} else {
assert(!"Unimplemented");
}
}
}
void
nat_binding::update(const nat_binding& desired)
{
/*
* the desired state is always that the interface should be created
*/
if (!m_binding) {
if (direction_t::INPUT == m_dir) {
HW::enqueue(new bind_44_input_cmd(m_binding, m_itf->handle(), m_zone));
} else {
assert(!"Unimplemented");
}
}
}
std::string
nat_binding::to_string() const
{
std::ostringstream s;
s << "nat-binding:[" << m_itf->to_string() << " " << m_dir.to_string() << " "
<< m_proto.to_string() << " " << m_zone.to_string() << "]";
return (s.str());
}
std::shared_ptr<nat_binding>
nat_binding::find_or_add(const nat_binding& temp)
{
return (m_db.find_or_add(
make_tuple(temp.m_itf->key(), temp.m_dir, temp.m_proto), temp));
}
std::shared_ptr<nat_binding>
nat_binding::singular() const
{
return find_or_add(*this);
}
void
nat_binding::dump(std::ostream& os)
{
m_db.dump(os);
}
std::ostream&
operator<<(std::ostream& os, const nat_binding::key_t& key)
{
os << "[" << std::get<0>(key) << ", " << std::get<1>(key) << ", "
<< std::get<2>(key) << "]";
return (os);
}
nat_binding::event_handler::event_handler()
{
OM::register_listener(this);
inspect::register_handler({ "nat-binding" }, "NAT bindings", this);
}
void
nat_binding::event_handler::handle_replay()
{
m_db.replay();
}
void
nat_binding::event_handler::handle_populate(const client_db::key_t& key)
{
/**
* This is done while populating the interfaces
*/
}
dependency_t
nat_binding::event_handler::order() const
{
return (dependency_t::BINDING);
}
void
nat_binding::event_handler::show(std::ostream& os)
{
m_db.dump(os);
}
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "mozilla")
* End:
*/
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