Kea  2.3.4-git
pkt_filter_inet.h
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1 // Copyright (C) 2013-2020 Internet Systems Consortium, Inc. ("ISC")
2 //
3 // This Source Code Form is subject to the terms of the Mozilla Public
4 // License, v. 2.0. If a copy of the MPL was not distributed with this
5 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
6 
7 #ifndef PKT_FILTER_INET_H
8 #define PKT_FILTER_INET_H
9 
10 #include <dhcp/pkt_filter.h>
11 #include <boost/scoped_array.hpp>
12 
13 namespace isc {
14 namespace dhcp {
15 
20 class PktFilterInet : public PktFilter {
21 public:
22 
30  virtual bool isDirectResponseSupported() const {
31  return (false);
32  }
33 
45  virtual SocketInfo openSocket(Iface& iface,
46  const isc::asiolink::IOAddress& addr,
47  const uint16_t port,
48  const bool receive_bcast,
49  const bool send_bcast);
50 
61  virtual Pkt4Ptr receive(Iface& iface, const SocketInfo& socket_info);
62 
79  virtual int send(const Iface& iface, uint16_t sockfd, const Pkt4Ptr& pkt);
80 
81 private:
83  static const size_t CONTROL_BUF_LEN;
84 };
85 
86 } // namespace isc::dhcp
87 } // namespace isc
88 
89 #endif // PKT_FILTER_INET_H
Packet handling class using AF_INET socket family.
virtual SocketInfo openSocket(Iface &iface, const isc::asiolink::IOAddress &addr, const uint16_t port, const bool receive_bcast, const bool send_bcast)
Open primary and fallback socket.
Represents a single network interface.
Definition: iface_mgr.h:118
virtual bool isDirectResponseSupported() const
Check if packet can be sent to the host without address directly.
virtual int send(const Iface &iface, uint16_t sockfd, const Pkt4Ptr &pkt)
Send packet over specified socket.
Abstract packet handling class.
Definition: pkt_filter.h:44
boost::shared_ptr< Pkt4 > Pkt4Ptr
A pointer to Pkt4 object.
Definition: pkt4.h:544
Defines the logger used by the top-level component of kea-lfc.
virtual Pkt4Ptr receive(Iface &iface, const SocketInfo &socket_info)
Receive packet over specified socket.
Holds information about socket.
Definition: socket_info.h:19