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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.
*/
#ifndef __VOM_NEIGHBOUR_H__
#define __VOM_NEIGHBOUR_H__
#include "vom/interface.hpp"
#include "vom/singular_db.hpp"
#include "vom/types.hpp"
namespace VOM {
/**
* A entry in the neighbour entry (ARP or IPv6 ND)
*/
class neighbour : public object_base
{
public:
struct flags_t : public enum_base<flags_t>
{
/**
* Constructor
*/
flags_t(int v, const std::string s);
/**
* Destructor
*/
~flags_t() = default;
flags_t operator|(const flags_t& e1) const
{
flags_t e = *this;
e |= e1;
return e;
}
const static flags_t NONE;
const static flags_t STATIC;
const static flags_t NO_FIB_ENTRY;
};
/**
* The key for a neighbour entry;
* the interface and IP address
*/
typedef std::pair<interface::key_t, boost::asio::ip::address> key_t;
/**
* Construct an ARP entry
*/
neighbour(const interface& itf,
const boost::asio::ip::address& ip_addr,
const mac_address_t& mac,
const flags_t flags = flags_t::STATIC);
/**
* Copy Construct
*/
neighbour(const neighbour& r);
/**
* Destructor
*/
~neighbour();
/**
* Return the object's key
*/
const key_t key() const;
/**
* Comparison operator
*/
bool operator==(const neighbour& n) const;
/**
* Return the matching 'singular instance'
*/
std::shared_ptr<neighbour> singular() const;
/**
* Find the neighbour fromits key
*/
static std::shared_ptr<neighbour> find(const key_t& k);
/**
* Dump all neighbours into the stream provided
*/
static void dump(std::ostream& os);
/**
* replay the object to create it in hardware
*/
void replay(void);
/**
* Convert to string for debugging
*/
std::string to_string() const;
private:
/**
* Class definition for listeners to OM events
*/
class event_handler : public OM::listener, public inspect::command_handler
{
public:
event_handler();
virtual ~event_handler() = default;
/**
* Handle a populate event
*/
void handle_populate(const client_db::key_t& key);
/**
* Handle a replay event
*/
void handle_replay();
/**
* Show the object in the Singular DB
*/
void show(std::ostream& os);
/**
* Get the sortable Id of the listener
*/
dependency_t order() const;
};
/**
* event_handler to register with OM
*/
static event_handler m_evh;
/**
* Commit the acculmulated changes into VPP. i.e. to a 'HW" write.
*/
void update(const neighbour& obj);
/**
* Do the populate work
*/
static void populate_i(const client_db::key_t& key,
std::shared_ptr<interface> itf,
const l3_proto_t& proto);
/**
* Find or add the instnace of the neighbour in the OM
*/
static std::shared_ptr<neighbour> find_or_add(const neighbour& temp);
/*
* It's the VPPHW class that updates the objects in HW
*/
friend class OM;
/**
* It's the singular_db class that calls replay()
*/
friend class singular_db<key_t, neighbour>;
/**
* Sweep/reap the object if still stale
*/
void sweep(void);
/**
* HW configuration for the result of creating the bridge_domain
*/
HW::item<handle_t> m_hw;
/**
* The bridge_domain domain the bridge_domain is in.
*/
std::shared_ptr<interface> m_itf;
/**
* The IP address
*/
boost::asio::ip::address m_ip_addr;
/**
* The mac to match
*/
mac_address_t m_mac;
/**
* flags on the entry
*/
flags_t m_flags;
/**
* A map of all bridge_domains
*/
static singular_db<key_t, neighbour> m_db;
};
std::ostream& operator<<(std::ostream& os, const neighbour::key_t& key);
};
/*
* fd.io coding-style-patch-verification: OFF
*
* Local Variables:
* eval: (c-set-style "mozilla")
* End:
*/
#endif
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