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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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/*
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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* Copyright (c) 2008 Liu Jian
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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* This program is free software; you can redistribute it and/or modify
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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* it under the terms of the GNU General Public License version 2 as
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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* published by the Free Software Foundation;
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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* This program is distributed in the hope that it will be useful,
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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* GNU General Public License for more details.
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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* You should have received a copy of the GNU General Public License
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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* along with this program; if not, write to the Free Software
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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* Author: Liu Jian <liujatp@gmail.com>
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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* Hajime Tazaki <tazaki@sfc.wide.ad.jp>
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*/
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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#ifndef NETLINK_MESSAGE_H
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#define NETLINK_MESSAGE_H
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#include "ns3/header.h"
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#include "ns3/address.h"
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#include "netlink-message-route.h"
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#include "netlink-attribute.h"
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namespace ns3 {
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class NetlinkPayload;
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class GeneralMessage;
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class InterfaceAddressMessage;
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class InterfaceInfoMessage;
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class RouteMessage;
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class MultipartNetlinkMessage;
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/**
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* \brief The Netlink message structure for an netlink packet
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*
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There are three levels to a Netlink message: The general Netlink
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message header, the IP service specific template, and the IP service
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specific data.
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0 1 2 3
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Netlink message header |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| IP Service Template |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| IP Service specific data in TLVs |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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enum NetlinkMessageFlag
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{
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NETLINK_MSG_F_REQUEST = 1, // It is request message.
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NETLINK_MSG_F_MULTI = 2, // Multipart message, terminated by NETLINK_MSG_DONE
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NETLINK_MSG_F_ACK = 4, // Reply with ack, with zero or error code
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NETLINK_MSG_F_ECHO = 8, // Echo this request
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/* Modifiers to Get request */
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NETLINK_MSG_F_ROOT = 0x100, // specify tree root
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NETLINK_MSG_F_MATCH = 0x200, // return all matching
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NETLINK_MSG_F_ATOMIC = 0x400, // atomic Get =
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NETLINK_MSG_F_DUMP = (NETLINK_MSG_F_ROOT|NETLINK_MSG_F_MATCH),
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/* Modifiers to NEW request */
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NETLINK_MSG_F_REPLACE = 0x100, // Override existing =
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NETLINK_MSG_F_EXCL = 0x200, // Do not touch, if it exists
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NETLINK_MSG_F_CREATE = 0x400, // Create, if it does not exist
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NETLINK_MSG_F_APPEND = 0x800, // Add to end of list =
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};
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Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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enum NetlinkMessageType
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{
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NETLINK_MSG_NOOP = 0x1, // Nothing.
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NETLINK_MSG_ERROR = 0x2, // Error
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NETLINK_MSG_DONE = 0x3, // End of a dump
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NETLINK_MSG_OVERRUN = 0x4, // Data lost
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NETLINK_MSG_MIN_TYPE = 0x10, // < 0x10: reserved control messages
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};
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#define NETLINK_MSG_ALIGNTO 4
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#define NETLINK_MSG_ALIGN(X) (((X)+NETLINK_MSG_ALIGNTO-1) & ~(NETLINK_MSG_ALIGNTO-1) )
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class NetlinkMessageHeader : public ObjectBase
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{
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public:
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NetlinkMessageHeader ();
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NetlinkMessageHeader (uint16_t type, uint16_t flags, uint32_t seq, uint32_t pid);
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static TypeId GetTypeId (void);
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virtual TypeId GetInstanceTypeId (void) const;
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void Print (std::ostream &os) const;
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uint32_t GetSerializedSize (void) const;
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void Serialize (Buffer::Iterator& start) const;
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uint32_t Deserialize (Buffer::Iterator& start);
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void SetMsgLen (uint32_t v);
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void SetMsgFlags (uint16_t v);
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void SetMsgType (uint16_t v);
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void SetMsgSeq (uint32_t v);
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void SetMsgPid (uint32_t v);
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uint32_t GetMsgLen (void) const;
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uint16_t GetMsgFlags (void) const;
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uint16_t GetMsgType (void) const;
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uint32_t GetMsgSeq (void) const;
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uint32_t GetMsgPid (void) const;
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static uint32_t GetHeaderSize ();
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uint32_t GetPayloadSize (void) const;
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private:
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static const uint32_t NETLINK_MSG_HEADER_SIZE = 16; /* size of the nlmsghdr field*/
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uint32_t m_nlmsgLen; /* Length of message including header */
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uint16_t m_nlmsgType; /* Message content */
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uint16_t m_nlmsgFlags; /* Additional flags */
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uint32_t m_nlmsgSeq; /* Sequence number */
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uint32_t m_nlmsgPid; /* Sending process PID */
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};
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/**
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* \brief The struct nlmsgerr
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*/
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class NetlinkMessageError : public NetlinkPayload
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{
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public:
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NetlinkMessageError ();
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virtual ~NetlinkMessageError();
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static TypeId GetTypeId (void);
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virtual TypeId GetInstanceTypeId (void) const;
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virtual void Serialize (Buffer::Iterator& start) const;
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virtual uint32_t Deserialize (Buffer::Iterator& start);
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virtual void Print (std::ostream &os) const;
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virtual uint32_t GetSerializedSize (void) const;
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void SetError (int32_t v);
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int32_t GetError (void) const;
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void SetMsg(NetlinkMessageHeader v);
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NetlinkMessageHeader GetMsg (void) const;
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private:
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static const int NETLINK_MSG_ERROR_SIZE = 20; /* size of the nlmsgerror field*/
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int32_t m_error;
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NetlinkMessageHeader m_msg;
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};
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class NetlinkMessage : public ObjectBase
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{
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public:
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NetlinkMessage ();
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static TypeId GetTypeId (void);
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TypeId GetInstanceTypeId (void) const;
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void Print (std::ostream &os) const;
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uint32_t GetSerializedSize (void) const;
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void Serialize (Buffer::Iterator& start) const;
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uint32_t Deserialize (Buffer::Iterator& start);
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170 |
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operator MultipartNetlinkMessage (void) const;
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uint32_t GetTotalSize (void) const; //length of netlink message including padding
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uint32_t GetMsgSize (void) const; //length of netlink message not including padding
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uint32_t GetPayloadSize (void) const; //length of message payload
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uint16_t GetMsgType (void) const;
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uint8_t GetFamily(void) const;
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void SetHeader (NetlinkMessageHeader hdr);
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NetlinkMessageHeader GetHeader (void) const;
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//before set message body, should set header first
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void SetErrorMessage (NetlinkMessageError errmsg);
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void SetGeneralMessage (GeneralMessage genmsg);
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void SetInterfaceInfoMessage (InterfaceInfoMessage v);
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void SetInterfaceAddressMessage (InterfaceAddressMessage v);
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void SetRouteMessage (RouteMessage v);
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NetlinkMessageError GetErrorMessage (void) const;
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GeneralMessage GetGeneralMessage (void) const;
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InterfaceInfoMessage GetInterfaceInfoMessage (void) const;
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InterfaceAddressMessage GetInterfaceAddressMessage (void) const;
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RouteMessage GetRouteMessage (void) const;
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193 |
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/**
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* \returns true if type was control type, false otherwise.
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196 |
*/
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static bool IsMessageNetlinkControl (uint16_t type);
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|
198 |
/**
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|
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* \returns true if type was netlink route, false otherwise.
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|
200 |
*/
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|
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static bool IsMessageNetlinkRoute (uint16_t type);
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|
202 |
static bool IsMessageAddress (uint16_t type);
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|
203 |
static bool IsMessageInterface (uint16_t type);
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|
204 |
static bool IsMessageRoute (uint16_t type);
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|
205 |
/**
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|
206 |
* \returns true if type was GETxxx , false otherwise.
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|
207 |
*/
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|
208 |
static bool IsMessageTypeGet (uint16_t type);
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|
209 |
/**
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|
210 |
* \returns true if flag has ack , false otherwise.
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|
211 |
*/
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|
212 |
static bool IsMessageFlagsAck (uint16_t flags);
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diff
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|
213 |
/**
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|
214 |
* \returns true if flag has request , false otherwise.
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|
215 |
*/
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|
216 |
static bool IsMessageFlagsRequest (uint16_t flags);
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parents:
diff
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|
217 |
/**
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parents:
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|
218 |
* \returns true if flag has dump , false otherwise.
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diff
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|
219 |
*/
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parents:
diff
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|
220 |
static bool IsMessageFlagsDump (uint16_t flags);
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parents:
diff
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|
221 |
|
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parents:
diff
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|
222 |
private:
|
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parents:
diff
changeset
|
223 |
NetlinkMessageHeader m_hdr;
|
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parents:
diff
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|
224 |
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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|
225 |
//only one type of messages below exists in real world application
|
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parents:
diff
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|
226 |
NetlinkMessageError m_errorMessage;
|
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parents:
diff
changeset
|
227 |
GeneralMessage m_genmsg;
|
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parents:
diff
changeset
|
228 |
InterfaceInfoMessage m_interfaceTemplate;
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
229 |
InterfaceAddressMessage m_addressTemplate;
|
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parents:
diff
changeset
|
230 |
RouteMessage m_routeTemplate;
|
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parents:
diff
changeset
|
231 |
};
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
232 |
|
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parents:
diff
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|
233 |
class MultipartNetlinkMessage : public Header
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
234 |
{
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
235 |
public:
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
236 |
MultipartNetlinkMessage ();
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
237 |
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
238 |
static TypeId GetTypeId (void);
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
239 |
virtual TypeId GetInstanceTypeId (void) const;
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
240 |
virtual void Print (std::ostream &os) const;
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
241 |
virtual uint32_t GetSerializedSize (void) const;
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
242 |
virtual void Serialize (Buffer::Iterator start) const;
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
243 |
virtual uint32_t Deserialize (Buffer::Iterator start);
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
244 |
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
245 |
void AppendMessage (NetlinkMessage nlmsg);
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
246 |
void Clear();
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
247 |
uint32_t GetNMessages (void) const;
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
248 |
NetlinkMessage GetMessage (uint32_t index) const;
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
249 |
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
250 |
private:
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
251 |
std::vector<NetlinkMessage> m_netlinkMessages;
|
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parents:
diff
changeset
|
252 |
};
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
253 |
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
changeset
|
254 |
}; // namespace ns3
|
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parents:
diff
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|
255 |
|
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents:
diff
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|
256 |
#endif /* NETLINK_MESSAGE_H */
|