author | Craig Dowell <craigdo@ee.washington.edu> |
Mon, 27 Oct 2008 22:01:24 -0700 | |
changeset 3827 | 4b603cd4ee42 |
permissions | -rw-r--r-- |
3827
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
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/* |
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* Copyright (c) 2008 University of Washington |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation; |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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|
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#ifndef EMULATED_NET_DEVICE_H |
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#define EMULATED_NET_DEVICE_H |
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|
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#include <string.h> |
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#include "ns3/address.h" |
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#include "ns3/net-device.h" |
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#include "ns3/node.h" |
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#include "ns3/callback.h" |
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#include "ns3/packet.h" |
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#include "ns3/traced-callback.h" |
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#include "ns3/event-id.h" |
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#include "ns3/nstime.h" |
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#include "ns3/data-rate.h" |
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#include "ns3/ptr.h" |
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#include "ns3/mac48-address.h" |
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#include "ns3/system-thread.h" |
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|
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namespace ns3 { |
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|
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class Queue; |
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|
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/** |
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* \class EmulatedNetDevice |
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* \brief A Device for an Emulated Network Link. |
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*/ |
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class EmulatedNetDevice : public NetDevice |
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{ |
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public: |
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static TypeId GetTypeId (void); |
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|
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/** |
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* Construct a EmulatedNetDevice |
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* |
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* This is the constructor for the EmulatedNetDevice. It takes as a |
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*/ |
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EmulatedNetDevice (); |
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|
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/** |
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* Destroy a EmulatedNetDevice |
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* |
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* This is the destructor for the EmulatedNetDevice. |
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*/ |
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virtual ~EmulatedNetDevice (); |
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|
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/** |
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* Set the Data Rate used for transmission of packets. |
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* |
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* @see Attach () |
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* @param bps the data rate at which this object operates |
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*/ |
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void SetDataRate (DataRate bps); |
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|
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/** |
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* Set the inteframe gap used to separate packets. The interframe gap |
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* defines the minimum space required between packets sent by this device. |
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* |
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* @param t the interframe gap time |
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*/ |
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void SetInterframeGap (Time t); |
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|
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/** |
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* Set a start time for the device. |
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* |
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* @param tStart the start time |
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*/ |
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void Start (Time tStart); |
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|
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/** |
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* Set a stop time for the device. |
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* |
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* @param tStop the stop time |
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*/ |
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void Stop (Time tStop); |
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|
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/** |
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* Attach a queue to the EmulatedNetDevice. |
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* |
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* The EmulatedNetDevice "owns" a queue that implements a queueing |
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* method such as DropTail or RED. |
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* |
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* @see Queue |
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* @see DropTailQueue |
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* @param queue Ptr to the new queue. |
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*/ |
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void SetQueue (Ptr<Queue> queue); |
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|
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/** |
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* Receive a packet. |
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* |
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* The EmulatedNetDevice receives packets from its socket reader |
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* and forwards them up the protocol stack. This is the public method |
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* used by the reader to indicate that a packet has arrived at the device. |
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* |
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* @param p Ptr to the received packet. |
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*/ |
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void Receive (Ptr<Packet> p); |
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|
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/** |
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* Assign a MAC address to this device. |
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* |
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* @see Mac48Address |
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* @param addr The new address. |
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121 |
*/ |
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122 |
void SetAddress (Mac48Address addr); |
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123 |
|
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124 |
// |
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// Pure virtual methods inherited from NetDevice we must implement. |
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126 |
// |
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127 |
virtual void SetName(const std::string name); |
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128 |
virtual std::string GetName(void) const; |
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129 |
|
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130 |
virtual void SetIfIndex(const uint32_t index); |
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131 |
virtual uint32_t GetIfIndex(void) const; |
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132 |
|
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133 |
virtual Ptr<Channel> GetChannel (void) const; |
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134 |
virtual Address GetAddress (void) const; |
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135 |
|
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136 |
virtual bool SetMtu (const uint16_t mtu); |
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137 |
virtual uint16_t GetMtu (void) const; |
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138 |
|
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139 |
virtual bool IsLinkUp (void) const; |
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140 |
|
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141 |
virtual void SetLinkChangeCallback (Callback<void> callback); |
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142 |
|
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143 |
virtual bool IsBroadcast (void) const; |
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144 |
virtual Address GetBroadcast (void) const; |
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145 |
|
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146 |
virtual bool IsMulticast (void) const; |
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virtual Address GetMulticast (void) const; |
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148 |
virtual Address MakeMulticastAddress (Ipv4Address multicastGroup) const; |
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149 |
|
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150 |
virtual bool IsPointToPoint (void) const; |
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151 |
|
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152 |
virtual bool Send(Ptr<Packet> packet, const Address &dest, uint16_t protocolNumber); |
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153 |
|
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154 |
virtual bool SendFrom(Ptr<Packet> packet, const Address& source, const Address& dest, uint16_t protocolNumber); |
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155 |
|
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156 |
virtual Ptr<Node> GetNode (void) const; |
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virtual void SetNode (Ptr<Node> node); |
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158 |
|
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159 |
virtual bool NeedsArp (void) const; |
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160 |
|
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161 |
virtual void SetReceiveCallback (NetDevice::ReceiveCallback cb); |
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162 |
virtual void SetPromiscReceiveCallback (PromiscReceiveCallback cb); |
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163 |
|
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164 |
virtual bool SupportsSendFrom (void) const; |
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165 |
|
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166 |
private: |
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167 |
|
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168 |
virtual void DoDispose (void); |
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169 |
|
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170 |
/** |
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171 |
* Get a copy of the attached Queue. |
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172 |
* |
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173 |
* This method is provided for any derived class that may need to get |
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174 |
* direct access to the underlying queue. |
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175 |
* |
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176 |
* @returns Ptr to the queue. |
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177 |
*/ |
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178 |
Ptr<Queue> GetQueue(void) const; |
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179 |
|
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180 |
/** |
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181 |
* Spin up the device |
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182 |
*/ |
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183 |
void StartDevice (void); |
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184 |
|
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185 |
/** |
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186 |
* Tear down the device |
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187 |
*/ |
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188 |
void StopDevice (void); |
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189 |
|
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190 |
/** |
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191 |
* Loop to read and process packets |
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192 |
*/ |
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193 |
void ReadThread (void); |
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194 |
|
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195 |
/** |
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196 |
* Method to handle received packets. Synchronized with simulator via ScheduleNow from ReadThread. |
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197 |
*/ |
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198 |
void ForwardUp (uint8_t *buf, uint32_t len); |
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199 |
|
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200 |
/** |
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201 |
* Adds the necessary headers and trailers to a packet of data in order to |
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202 |
* respect the protocol implemented by the agent. |
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203 |
*/ |
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204 |
void AddHeader(Ptr<Packet> p, uint16_t protocolNumber); |
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205 |
|
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|
206 |
/** |
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207 |
* Removes, from a packet of data, all headers and trailers that |
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208 |
* relate to the protocol implemented by the agent |
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209 |
* \return Returns true if the packet should be forwarded up the |
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210 |
* protocol stack. |
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211 |
*/ |
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212 |
bool ProcessHeader(Ptr<Packet> p, uint16_t& param); |
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213 |
|
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|
214 |
/** |
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215 |
* Start Sending a Packet Down the Wire. |
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216 |
* |
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217 |
* @returns true if success, false on failure |
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218 |
*/ |
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219 |
bool TransmitStart (Ptr<Packet> p); |
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220 |
|
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221 |
void NotifyLinkUp (void); |
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222 |
|
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223 |
/** |
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224 |
* The Queue which this EmulatedNetDevice uses as a packet source. |
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225 |
* Management of this Queue has been delegated to the EmulatedNetDevice |
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226 |
* and it has the responsibility for deletion. |
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227 |
* @see class Queue |
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228 |
* @see class DropTailQueue |
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229 |
*/ |
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230 |
Ptr<Queue> m_queue; |
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|
231 |
|
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|
232 |
/** |
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233 |
* The trace source for the packet reception events that the device can |
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|
234 |
* fire. |
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|
235 |
* |
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|
236 |
* @see class CallBackTraceSource |
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237 |
*/ |
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|
238 |
TracedCallback<Ptr<const Packet> > m_rxTrace; |
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|
239 |
|
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|
240 |
/** |
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241 |
* The trace source for the packet drop events that the device can |
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242 |
* fire. |
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243 |
* |
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244 |
* @see class CallBackTraceSource |
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245 |
*/ |
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246 |
TracedCallback<Ptr<const Packet> > m_dropTrace; |
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247 |
|
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248 |
/** |
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249 |
* Time to start spinning up the device |
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250 |
*/ |
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251 |
Time m_tStart; |
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252 |
|
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253 |
/** |
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254 |
* Time to start tearing down the device |
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255 |
*/ |
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256 |
Time m_tStop; |
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|
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EventId m_startEvent; |
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EventId m_stopEvent; |
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260 |
|
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261 |
int32_t m_sock; |
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262 |
|
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263 |
Ptr<SystemThread> m_readThread; |
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264 |
|
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265 |
/** |
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266 |
* The Node to which this device is attached. |
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267 |
*/ |
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268 |
Ptr<Node> m_node; |
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269 |
|
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270 |
/** |
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271 |
* The MAC address which has been assigned to this device. |
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272 |
*/ |
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273 |
Mac48Address m_address; |
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274 |
|
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275 |
/** |
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276 |
* The callback used to notify higher layers that a packet has been received. |
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277 |
*/ |
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278 |
NetDevice::ReceiveCallback m_rxCallback; |
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|
279 |
|
4b603cd4ee42
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|
280 |
/** |
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|
281 |
* The callback used to notify higher layers that a packet has been received in promiscuous mode. |
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282 |
*/ |
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|
283 |
NetDevice::PromiscReceiveCallback m_promiscRxCallback; |
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|
284 |
|
4b603cd4ee42
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|
285 |
/** |
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|
286 |
* The ns-3 interface index (in the sense of net device index) that has been assigned to this network device. |
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parents:
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|
287 |
*/ |
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|
288 |
uint32_t m_ifIndex; |
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|
289 |
|
4b603cd4ee42
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|
290 |
/** |
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|
291 |
* The Unix interface index that we got from the system and which corresponds to the interface (e.g., "eth1") |
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292 |
* we are using to talk to the network. Valid when m_sock is valid. |
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parents:
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|
293 |
*/ |
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|
294 |
int32_t m_sll_ifindex; |
4b603cd4ee42
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parents:
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changeset
|
295 |
|
4b603cd4ee42
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parents:
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changeset
|
296 |
/** |
4b603cd4ee42
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|
297 |
* The human readable name of this device. |
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changeset
|
298 |
*/ |
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|
299 |
std::string m_name; |
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|
300 |
|
4b603cd4ee42
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changeset
|
301 |
/** |
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|
302 |
* Flag indicating whether or not the link is up. In this case, |
4b603cd4ee42
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|
303 |
* whether or not the device is connected to a channel. |
4b603cd4ee42
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changeset
|
304 |
*/ |
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changeset
|
305 |
bool m_linkUp; |
4b603cd4ee42
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parents:
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changeset
|
306 |
|
4b603cd4ee42
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parents:
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changeset
|
307 |
/** |
4b603cd4ee42
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changeset
|
308 |
* Callback to fire if the link changes state (up or down). |
4b603cd4ee42
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Craig Dowell <craigdo@ee.washington.edu>
parents:
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changeset
|
309 |
*/ |
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parents:
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|
310 |
Callback<void> m_linkChangeCallback; |
4b603cd4ee42
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parents:
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changeset
|
311 |
|
4b603cd4ee42
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parents:
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changeset
|
312 |
/** |
4b603cd4ee42
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changeset
|
313 |
* The unix/linux name of the underlying device (e.g., eth0) |
4b603cd4ee42
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Craig Dowell <craigdo@ee.washington.edu>
parents:
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changeset
|
314 |
*/ |
4b603cd4ee42
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parents:
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changeset
|
315 |
std::string m_deviceName; |
4b603cd4ee42
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|
316 |
}; |
4b603cd4ee42
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parents:
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changeset
|
317 |
|
4b603cd4ee42
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|
318 |
} // namespace ns3 |
4b603cd4ee42
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changeset
|
319 |
|
4b603cd4ee42
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changeset
|
320 |
#endif // EMULATED_NET_DEVICE_H |
4b603cd4ee42
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Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
321 |