author | Craig Dowell <craigdo@ee.washington.edu> |
Wed, 29 Oct 2008 22:39:36 -0700 | |
changeset 3830 | 8862b9be62bb |
parent 3827 | src/devices/emulated/emulated-net-device.cc@4b603cd4ee42 |
child 3831 | 16c2970a0344 |
permissions | -rw-r--r-- |
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1 |
/* -*- 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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5 |
* This program is free software; you can redistribute it and/or modify |
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6 |
* it under the terms of the GNU General Public License version 2 as |
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7 |
* 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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15 |
* along with this program; if not, write to the Free Software |
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16 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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|
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#include "emu-net-device.h" |
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#include "emu-encode-decode.h" |
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|
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#include "ns3/log.h" |
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#include "ns3/queue.h" |
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#include "ns3/simulator.h" |
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#include "ns3/realtime-simulator-impl.h" |
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#include "ns3/mac48-address.h" |
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#include "ns3/ethernet-header.h" |
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#include "ns3/ethernet-trailer.h" |
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#include "ns3/llc-snap-header.h" |
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#include "ns3/trace-source-accessor.h" |
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#include "ns3/pointer.h" |
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#include "ns3/channel.h" |
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#include "ns3/system-thread.h" |
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#include "ns3/string.h" |
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#include "ns3/boolean.h" |
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|
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#include <sys/wait.h> |
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#include <sys/stat.h> |
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#include <sys/socket.h> |
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#include <sys/un.h> |
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#include <sys/ioctl.h> |
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#include <net/ethernet.h> |
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#include <net/if.h> |
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#include <netinet/in.h> |
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#include <netpacket/packet.h> |
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#include <arpa/inet.h> |
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#include <errno.h> |
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|
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NS_LOG_COMPONENT_DEFINE ("EmuNetDevice"); |
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|
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namespace ns3 { |
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|
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NS_OBJECT_ENSURE_REGISTERED (EmuNetDevice); |
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|
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TypeId |
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EmuNetDevice::GetTypeId (void) |
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{ |
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static TypeId tid = TypeId ("ns3::EmuNetDevice") |
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.SetParent<NetDevice> () |
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.AddConstructor<EmuNetDevice> () |
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.AddAttribute ("Address", |
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"The ns-3 MAC address of this (virtual) device.", |
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Mac48AddressValue (Mac48Address ("ff:ff:ff:ff:ff:ff")), |
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MakeMac48AddressAccessor (&EmuNetDevice::m_address), |
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MakeMac48AddressChecker ()) |
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.AddAttribute ("DeviceName", |
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"The name of the underlying real device (e.g. eth1).", |
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StringValue ("eth1"), |
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MakeStringAccessor (&EmuNetDevice::m_deviceName), |
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MakeStringChecker ()) |
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.AddAttribute ("Start", |
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"The simulation time at which to spin up the device thread.", |
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TimeValue (Seconds (0.)), |
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MakeTimeAccessor (&EmuNetDevice::m_tStart), |
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MakeTimeChecker ()) |
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.AddAttribute ("Stop", |
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"The simulation time at which to tear down the device thread.", |
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TimeValue (Seconds (0.)), |
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MakeTimeAccessor (&EmuNetDevice::m_tStop), |
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MakeTimeChecker ()) |
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.AddAttribute ("TxQueue", |
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"A queue to use as the transmit queue in the device.", |
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PointerValue (), |
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MakePointerAccessor (&EmuNetDevice::m_queue), |
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MakePointerChecker<Queue> ()) |
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.AddTraceSource ("Rx", |
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"Trace source to fire on reception of a MAC packet.", |
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MakeTraceSourceAccessor (&EmuNetDevice::m_rxTrace)) |
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.AddTraceSource ("Drop", |
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"Trace source to fire on when a MAC packet is dropped.", |
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MakeTraceSourceAccessor (&EmuNetDevice::m_dropTrace)) |
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92 |
; |
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93 |
return tid; |
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94 |
} |
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95 |
|
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96 |
|
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97 |
EmuNetDevice::EmuNetDevice () |
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98 |
: |
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99 |
m_startEvent (), |
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m_stopEvent (), |
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101 |
m_sock (-1), |
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102 |
m_readThread (0), |
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103 |
m_ifIndex (-1), |
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104 |
m_sll_ifindex (-1), |
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105 |
m_name ("Emu NetDevice") |
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106 |
{ |
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107 |
NS_LOG_FUNCTION (this); |
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108 |
Start (m_tStart); |
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109 |
} |
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110 |
|
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111 |
EmuNetDevice::~EmuNetDevice () |
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112 |
{ |
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113 |
} |
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|
114 |
|
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|
115 |
void |
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|
116 |
EmuNetDevice::DoDispose() |
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117 |
{ |
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118 |
NS_LOG_FUNCTION_NOARGS (); |
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119 |
m_node = 0; |
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120 |
NetDevice::DoDispose (); |
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121 |
} |
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122 |
|
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123 |
void |
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124 |
EmuNetDevice::Start (Time tStart) |
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125 |
{ |
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126 |
NS_LOG_FUNCTION (tStart); |
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127 |
|
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128 |
// |
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129 |
// Cancel any pending start event and schedule a new one at some relative time in the future. |
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130 |
// |
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|
131 |
Simulator::Cancel (m_startEvent); |
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132 |
m_startEvent = Simulator::Schedule (tStart, &EmuNetDevice::StartDevice, this); |
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133 |
} |
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|
134 |
|
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135 |
void |
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|
136 |
EmuNetDevice::Stop (Time tStop) |
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137 |
{ |
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|
138 |
NS_LOG_FUNCTION (tStop); |
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139 |
// |
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|
140 |
// Cancel any pending stop event and schedule a new one at some relative time in the future. |
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|
141 |
// |
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|
142 |
Simulator::Cancel (m_stopEvent); |
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143 |
m_startEvent = Simulator::Schedule (tStop, &EmuNetDevice::StopDevice, this); |
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|
144 |
} |
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|
145 |
|
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|
146 |
void |
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|
147 |
EmuNetDevice::StartDevice (void) |
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|
148 |
{ |
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|
149 |
NS_LOG_FUNCTION_NOARGS (); |
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|
150 |
|
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|
151 |
// |
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|
152 |
// Spin up the emu net device and start receiving packets. |
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153 |
// |
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|
154 |
NS_ASSERT_MSG (m_sock == -1, "EmuNetDevice::StartDevice(): Device is already started"); |
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|
155 |
|
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|
156 |
NS_LOG_LOGIC ("Creating socket"); |
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|
157 |
// |
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|
158 |
// Call out to a separate process running as suid root in order to get a raw |
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|
159 |
// socket. We do this to avoid having the entire simulation running as root. |
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|
160 |
// If this method returns, we'll have a raw socket waiting for us in m_sock. |
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|
161 |
// |
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|
162 |
CreateSocket (); |
3827
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changeset
|
163 |
|
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changeset
|
164 |
// |
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|
165 |
// Figure out which interface index corresponds to the device name in the corresponding attribute. |
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|
166 |
// |
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|
167 |
struct ifreq ifr; |
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|
168 |
bzero (&ifr, sizeof(ifr)); |
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|
169 |
strncpy ((char *)ifr.ifr_name, m_deviceName.c_str (), IFNAMSIZ); |
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|
170 |
|
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|
171 |
NS_LOG_LOGIC ("Getting interface index"); |
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|
172 |
int32_t rc = ioctl (m_sock, SIOCGIFINDEX, &ifr); |
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|
173 |
NS_ASSERT_MSG (rc != -1, "EmuNetDevice::StartDevice(): Can't get interface index"); |
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changeset
|
174 |
|
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changeset
|
175 |
// |
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|
176 |
// Save the real interface index for later calls to sendto |
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changeset
|
177 |
// |
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|
178 |
m_sll_ifindex = ifr.ifr_ifindex; |
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changeset
|
179 |
|
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changeset
|
180 |
// |
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changeset
|
181 |
// Bind the socket to the interface we just found. |
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changeset
|
182 |
// |
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changeset
|
183 |
struct sockaddr_ll ll; |
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|
184 |
bzero (&ll, sizeof(ll)); |
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changeset
|
185 |
|
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|
186 |
ll.sll_family = AF_PACKET; |
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changeset
|
187 |
ll.sll_ifindex = m_sll_ifindex; |
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changeset
|
188 |
ll.sll_protocol = htons(ETH_P_ALL); |
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changeset
|
189 |
|
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changeset
|
190 |
NS_LOG_LOGIC ("Binding socket to interface"); |
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changeset
|
191 |
|
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|
192 |
rc = bind (m_sock, (struct sockaddr *)&ll, sizeof (ll)); |
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|
193 |
NS_ASSERT_MSG (rc != -1, "EmuNetDevice::StartDevice(): Can't bind to specified interface"); |
3827
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changeset
|
194 |
|
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changeset
|
195 |
// |
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changeset
|
196 |
// Now spin up a read thread to read packets. |
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changeset
|
197 |
// |
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|
198 |
NS_ASSERT_MSG (m_readThread == 0, "EmuNetDevice::StartDevice(): Receive thread is already running"); |
3827
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changeset
|
199 |
|
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changeset
|
200 |
NS_LOG_LOGIC ("Spinning up read thread"); |
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changeset
|
201 |
|
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changeset
|
202 |
m_readThread = Create<SystemThread> (MakeCallback (&EmuNetDevice::ReadThread, this)); |
3827
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changeset
|
203 |
m_readThread->Start (); |
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changeset
|
204 |
|
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changeset
|
205 |
NotifyLinkUp (); |
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changeset
|
206 |
} |
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changeset
|
207 |
|
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changeset
|
208 |
void |
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|
209 |
EmuNetDevice::CreateSocket (void) |
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|
210 |
{ |
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changeset
|
211 |
NS_LOG_FUNCTION_NOARGS (); |
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changeset
|
212 |
// |
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changeset
|
213 |
// We want to create a raw socket for our net device. Unfortunately for us |
8862b9be62bb
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changeset
|
214 |
// you have to have root privileges to do that. Instead of running the |
8862b9be62bb
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changeset
|
215 |
// entire simulation as root, we decided to make a small program who's whole |
8862b9be62bb
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|
216 |
// reason for being is to run as suid root and create a raw socket. We're |
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|
217 |
// going to fork and exec that program soon, but we need to have a socket |
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|
218 |
// to talk to it with. So we create a local interprocess (Unix) socket |
8862b9be62bb
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|
219 |
// for that purpose. |
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changeset
|
220 |
// |
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changeset
|
221 |
int sock = socket (PF_UNIX, SOCK_DGRAM, 0); |
8862b9be62bb
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changeset
|
222 |
if (sock == -1) |
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changeset
|
223 |
{ |
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changeset
|
224 |
NS_FATAL_ERROR ("EmuNetDevice::CreateSocket(): Unix socket creation error, errno = " << strerror (errno)); |
8862b9be62bb
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changeset
|
225 |
} |
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changeset
|
226 |
|
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changeset
|
227 |
// |
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changeset
|
228 |
// Bind to that socket and let the kernel allocate an endpoint |
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changeset
|
229 |
// |
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changeset
|
230 |
struct sockaddr_un un; |
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231 |
memset (&un, 0, sizeof (un)); |
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232 |
un.sun_family = AF_UNIX; |
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233 |
int status = bind (sock, (struct sockaddr*)&un, sizeof (sa_family_t)); |
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234 |
if (status == -1) |
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235 |
{ |
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236 |
NS_FATAL_ERROR ("EmuNetDevice::CreateSocket(): Could not bind(): errno = " << strerror (errno)); |
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237 |
} |
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238 |
|
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239 |
// |
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240 |
// We have a socket here, but we want to get it there -- to the program we're |
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241 |
// going to exec. What we'll do is to do a getsockname and then encode the |
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242 |
// resulting address information as a string, and then send the string to the |
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243 |
// program as an argument. So we need to get the sock name. |
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244 |
// |
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245 |
socklen_t len = sizeof (un); |
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246 |
status = getsockname (sock, (struct sockaddr*)&un, &len); |
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247 |
if (status == -1) |
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248 |
{ |
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249 |
NS_FATAL_ERROR ("EmuNetDevice::CreateSocket(): Could not getsockname(): errno = " << strerror (errno)); |
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250 |
} |
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251 |
|
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252 |
// |
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253 |
// Now encode that socket name (endpoint information) as a string |
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254 |
// |
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255 |
std::string endpoint = EmuBufferToString((uint8_t *)&un, len); |
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256 |
|
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257 |
// |
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258 |
// Fork and exec the process to create our socket. If we're us (the parent) |
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259 |
// we wait for the child (the socket creator) to complete and read the |
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260 |
// socket it created using the ancillary data mechanism. |
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261 |
// |
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262 |
pid_t pid = ::fork (); |
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263 |
if (pid == 0) |
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264 |
{ |
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265 |
NS_LOG_DEBUG ("Child process"); |
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266 |
|
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267 |
// |
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268 |
// build a command line argument from the encoded endpoint string that |
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269 |
// the socket creation process will use to figure out how to respond to |
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270 |
// the (now) parent process. |
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271 |
// |
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272 |
std::ostringstream oss; |
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273 |
oss << "-p " << endpoint; |
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274 |
|
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275 |
// |
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276 |
// Execute the socket creation process image. |
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277 |
// |
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278 |
status = ::execl (FindCreator ().c_str (), "emu-sock-creator", oss.str ().c_str (), (char *)NULL); |
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279 |
|
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280 |
// |
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281 |
// If the execl successfully completes, it never returns. If it returns it failed or the OS is |
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282 |
// broken. In either case, we bail. |
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283 |
// |
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284 |
NS_FATAL_ERROR ("EmuNetDevice::CreateSocket(): Back from execl(), errno = " << ::strerror (errno)); |
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285 |
} |
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286 |
else |
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|
287 |
{ |
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|
288 |
NS_LOG_DEBUG ("Parent process"); |
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289 |
// |
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290 |
// We're the process running the emu net device. We need to wait for the |
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291 |
// socket creator process to finish its job. |
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|
292 |
// |
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|
293 |
int st; |
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294 |
pid_t waited = waitpid (pid, &st, 0); |
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295 |
if (waited == -1) |
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|
296 |
{ |
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|
297 |
NS_FATAL_ERROR ("EmuNetDevice::CreateSocket(): waitpid() fails, errno = " << strerror (errno)); |
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|
298 |
} |
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|
299 |
NS_ASSERT_MSG (pid == waited, "EmuNetDevice::CreateSocket(): pid mismatch"); |
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|
300 |
|
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|
301 |
// |
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|
302 |
// Check to see if the socket creator exited normally and then take a |
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|
303 |
// look at the exit code. If it bailed, so should we. If it didn't |
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|
304 |
// even exit normally, we bail too. |
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|
305 |
// |
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|
306 |
if (WIFEXITED (st)) |
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|
307 |
{ |
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|
308 |
int exitStatus = WEXITSTATUS (st); |
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|
309 |
if (exitStatus != 0) |
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|
310 |
{ |
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|
311 |
NS_FATAL_ERROR ("EmuNetDevice::CreateSocket(): socket creator exited normally with status " << exitStatus); |
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|
312 |
} |
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|
313 |
} |
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|
314 |
else |
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|
315 |
{ |
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|
316 |
NS_FATAL_ERROR ("EmuNetDevice::CreateSocket(): socket creator exited abnormally"); |
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|
317 |
} |
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|
318 |
|
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|
319 |
// |
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|
320 |
// At this point, the socket creator has run successfully and should |
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|
321 |
// have created our raw socket and sent it back to the socket address |
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|
322 |
// we provided. Our socket should be waiting on the Unix socket. We've |
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|
323 |
// got to do a bunch of grunto work to get at it, though. |
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|
324 |
// |
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|
325 |
// The struct iovec below is part of a scatter-gather list. It describes a |
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|
326 |
// buffer. In this case, it describes a buffer (an integer) that will |
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|
327 |
// get the data that comes back from the socket creator process. It will |
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|
328 |
// be a magic number that we use as a consistency/sanity check. |
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|
329 |
// |
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|
330 |
struct iovec iov; |
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|
331 |
uint32_t magic; |
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|
332 |
iov.iov_base = &magic; |
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|
333 |
iov.iov_len = sizeof(magic); |
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|
334 |
|
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|
335 |
// |
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|
336 |
// The CMSG macros you'll see below are used to create and access control |
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|
337 |
// messages (which is another name for ancillary data). The ancillary |
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|
338 |
// data is made up of pairs of struct cmsghdr structures and associated |
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|
339 |
// data arrays. |
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|
340 |
// |
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|
341 |
// First, we're going to allocate a buffer on the stack to receive our |
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|
342 |
// data array (that contains the socket). Sometimes you'll see this called |
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|
343 |
// an "ancillary element" but the msghdr uses the control message termimology |
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|
344 |
// so we call it "control." |
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|
345 |
// |
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parents:
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diff
changeset
|
346 |
size_t msg_size = sizeof(int); |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
347 |
char control[CMSG_SPACE(msg_size)]; |
8862b9be62bb
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parents:
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diff
changeset
|
348 |
|
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
349 |
// |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
350 |
// There is a msghdr that is used to minimize the number of parameters |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
351 |
// passed to recvmsg (which we will use to receive our ancillary data). |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
352 |
// This structure uses terminology corresponding to control messages, so |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
353 |
// you'll see msg_control, which is the pointer to the ancillary data and |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
354 |
// controllen which is the size of the ancillary data array. |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
355 |
// |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
356 |
// So, initialize the message header that describes the ancillary/control |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
357 |
// data we expect to receive and point it to buffer. |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
358 |
// |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
359 |
struct msghdr msg; |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
360 |
msg.msg_name = 0; |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
361 |
msg.msg_namelen = 0; |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
362 |
msg.msg_iov = &iov; |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
363 |
msg.msg_iovlen = 1; |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
364 |
msg.msg_control = control; |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
365 |
msg.msg_controllen = sizeof (control); |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
366 |
msg.msg_flags = 0; |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
367 |
|
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
368 |
// |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
369 |
// Now we can actually receive the interesting bits from the socket |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
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diff
changeset
|
370 |
// creator process. |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
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diff
changeset
|
371 |
// |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
372 |
ssize_t bytesRead = recvmsg (sock, &msg, 0); |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
373 |
if (bytesRead != sizeof(int)) |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
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diff
changeset
|
374 |
{ |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
375 |
NS_FATAL_ERROR ("EmuNetDevice::CreateSocket(): Wrong byte count from socket creator"); |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
376 |
} |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
377 |
|
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
378 |
// |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
379 |
// There may be a number of message headers/ancillary data arrays coming in. |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
380 |
// Let's look for the one with a type SCM_RIGHTS which indicates it' the |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
381 |
// one we're interested in. |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
382 |
// |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
383 |
struct cmsghdr *cmsg; |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
384 |
for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL; cmsg = CMSG_NXTHDR(&msg, cmsg)) |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
385 |
{ |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
386 |
if (cmsg->cmsg_level == SOL_SOCKET && |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
387 |
cmsg->cmsg_type == SCM_RIGHTS) |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
388 |
{ |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
389 |
int *rawSocket = (int*)CMSG_DATA (cmsg); |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
390 |
NS_LOG_INFO ("Got the socket from the socket creator = " << *rawSocket); |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
391 |
m_sock = *rawSocket; |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
392 |
return; |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
393 |
} |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
394 |
} |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
395 |
NS_FATAL_ERROR ("Did not get the raw socket from the socket creator"); |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
396 |
} |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
397 |
} |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
398 |
|
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
399 |
std::string |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
400 |
EmuNetDevice::FindCreator (void) |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
401 |
{ |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
402 |
struct stat st; |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
403 |
std::string debug = "./build/debug/src/devices/emu/emu-sock-creator"; |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
404 |
std::string optimized = "./build/optimized/src/devices/emu/emu-sock-creator"; |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
405 |
|
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
406 |
if (::stat (debug.c_str (), &st) == 0) |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
407 |
{ |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
408 |
return debug; |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
409 |
} |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
410 |
|
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
411 |
if (::stat (optimized.c_str (), &st) == 0) |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
412 |
{ |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
413 |
return optimized; |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
414 |
} |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
415 |
|
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
416 |
NS_FATAL_ERROR ("EmuNetDevice::FindCreator(): Couldn't find creator"); |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
417 |
return ""; // quiet compiler |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
418 |
} |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
419 |
|
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
420 |
void |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
421 |
EmuNetDevice::StopDevice (void) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
422 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
423 |
NS_LOG_FUNCTION_NOARGS (); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
424 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
425 |
close (m_sock); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
426 |
m_sock = -1; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
427 |
|
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
428 |
NS_ASSERT_MSG (m_readThread != 0, "EmuNetDevice::StopDevice(): Receive thread is not running"); |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
429 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
430 |
NS_LOG_LOGIC ("Joining read thread"); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
431 |
m_readThread->Join (); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
432 |
m_readThread = 0; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
433 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
434 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
435 |
void |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
436 |
EmuNetDevice::ForwardUp (uint8_t *buf, uint32_t len) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
437 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
438 |
NS_LOG_FUNCTION (buf << len); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
439 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
440 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
441 |
// Create a packet out of the buffer we received and free that buffer. |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
442 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
443 |
Ptr<Packet> packet = Create<Packet> (reinterpret_cast<const uint8_t *> (buf), len); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
444 |
free (buf); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
445 |
buf = 0; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
446 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
447 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
448 |
// Trace sinks will expect complete packets, not packets without some of the |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
449 |
// headers. |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
450 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
451 |
Ptr<Packet> originalPacket = packet->Copy (); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
452 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
453 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
454 |
// Checksum the packet |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
455 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
456 |
EthernetTrailer trailer; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
457 |
packet->RemoveTrailer (trailer); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
458 |
trailer.CheckFcs (packet); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
459 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
460 |
EthernetHeader header (false); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
461 |
packet->RemoveHeader (header); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
462 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
463 |
NS_LOG_LOGIC ("Pkt source is " << header.GetSource ()); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
464 |
NS_LOG_LOGIC ("Pkt destination is " << header.GetDestination ()); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
465 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
466 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
467 |
// An IP host group address is mapped to an Ethernet multicast address |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
468 |
// by placing the low-order 23-bits of the IP address into the low-order |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
469 |
// 23 bits of the Ethernet multicast address 01-00-5E-00-00-00 (hex). |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
470 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
471 |
// We are going to receive all packets destined to any multicast address, |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
472 |
// which means clearing the low-order 23 bits the header destination |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
473 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
474 |
Mac48Address mcDest; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
475 |
uint8_t mcBuf[6]; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
476 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
477 |
header.GetDestination ().CopyTo (mcBuf); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
478 |
mcBuf[3] &= 0x80; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
479 |
mcBuf[4] = 0; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
480 |
mcBuf[5] = 0; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
481 |
mcDest.CopyFrom (mcBuf); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
482 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
483 |
Mac48Address multicast = Mac48Address::ConvertFrom (GetMulticast ()); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
484 |
Mac48Address broadcast = Mac48Address::ConvertFrom (GetBroadcast ()); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
485 |
Mac48Address destination = Mac48Address::ConvertFrom (GetAddress ()); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
486 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
487 |
LlcSnapHeader llc; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
488 |
packet->RemoveHeader (llc); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
489 |
uint16_t protocol = llc.GetType (); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
490 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
491 |
PacketType packetType; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
492 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
493 |
if (header.GetDestination () == broadcast) |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
494 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
495 |
NS_LOG_LOGIC ("Pkt destination is PACKET_BROADCAST"); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
496 |
packetType = NS3_PACKET_BROADCAST; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
497 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
498 |
else if (mcDest == multicast) |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
499 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
500 |
NS_LOG_LOGIC ("Pkt destination is PACKET_MULTICAST"); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
501 |
packetType = NS3_PACKET_MULTICAST; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
502 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
503 |
else if (header.GetDestination () == destination) |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
504 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
505 |
NS_LOG_LOGIC ("Pkt destination is PACKET_HOST"); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
506 |
packetType = NS3_PACKET_HOST; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
507 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
508 |
else |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
509 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
510 |
NS_LOG_LOGIC ("Pkt destination is PACKET_OTHERHOST"); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
511 |
packetType = NS3_PACKET_OTHERHOST; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
512 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
513 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
514 |
if (!m_promiscRxCallback.IsNull ()) |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
515 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
516 |
NS_LOG_LOGIC ("calling m_promiscRxCallback"); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
517 |
m_promiscRxCallback (this, packet->Copy (), protocol, header.GetSource (), header.GetDestination (), packetType); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
518 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
519 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
520 |
if (packetType != NS3_PACKET_OTHERHOST) |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
521 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
522 |
m_rxTrace (originalPacket); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
523 |
NS_LOG_LOGIC ("calling m_rxCallback"); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
524 |
m_rxCallback (this, packet, protocol, header.GetSource ()); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
525 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
526 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
527 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
528 |
void |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
529 |
EmuNetDevice::ReadThread (void) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
530 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
531 |
NS_LOG_FUNCTION_NOARGS (); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
532 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
533 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
534 |
// It's important to remember that we're in a completely different thread than the simulator is running in. We |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
535 |
// need to synchronize with that other thread to get the packet up into ns-3. What we will need to do is to schedule |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
536 |
// a method to forward up the packet using the multithreaded simulator we are most certainly running. However, I just |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
537 |
// said it -- we are talking about two threads here, so it is very, very dangerous to do any kind of reference couning |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
538 |
// on a shared object. Just don't do it. So what we're going to do is to allocate a buffer on the heap and pass that |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
539 |
// buffer into the ns-3 context thread where it will create the packet. |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
540 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
541 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
542 |
int32_t len = -1; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
543 |
struct sockaddr_ll addr; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
544 |
socklen_t addrSize = sizeof (addr); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
545 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
546 |
for (;;) |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
547 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
548 |
uint32_t bufferSize = 65536; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
549 |
uint8_t *buf = (uint8_t *)malloc (bufferSize); |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
550 |
NS_ASSERT_MSG (buf, "EmuNetDevice::ReadThread(): malloc packet buffer failed"); |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
551 |
NS_LOG_LOGIC ("Calling recvfrom"); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
552 |
len = recvfrom (m_sock, buf, bufferSize, 0, (struct sockaddr *)&addr, &addrSize); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
553 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
554 |
if (len == -1) |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
555 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
556 |
free (buf); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
557 |
buf = 0; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
558 |
return; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
559 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
560 |
|
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
561 |
NS_LOG_INFO ("EmuNetDevice::ReadThread(): Received packet"); |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
562 |
NS_LOG_INFO ("EmuNetDevice::ReadThread(): Scheduling handler"); |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
563 |
DynamicCast<RealtimeSimulatorImpl> (Simulator::GetImplementation ())->ScheduleRealtimeNow ( |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
564 |
MakeEvent (&EmuNetDevice::ForwardUp, this, buf, len)); |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
565 |
buf = 0; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
566 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
567 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
568 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
569 |
bool |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
570 |
EmuNetDevice::Send (Ptr<Packet> packet, const Address &dest, uint16_t protocolNumber) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
571 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
572 |
NS_LOG_FUNCTION (packet << dest << protocolNumber); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
573 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
574 |
// The immediate questions here are how are we going to encapsulate packets and what do we use as the MAC source and |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
575 |
// destination (hardware) addresses? |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
576 |
// |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
577 |
// If we return false from EmuNetDevice::NeedsArp, the ArpIpv4Interface will pass the broadcast address as the |
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
578 |
// hardware (Ethernet) destination by default. If we return true from EmuNetDevice::NeedsArp, then the hardware |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
579 |
// destination is actually meaningful, but we'll have an ns-3 ARP running on this device. There can also be an ARP |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
580 |
// running on the underlying OS so we have to be very careful, both about multiple ARPs and also about TCP, UDP, etc. |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
581 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
582 |
// We are operating in promiscuous mode on the receive side (all ns-3 net devices are required to implement the |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
583 |
// promiscuous callback in a meaningful way), so we have an option regarding the hardware addresses. We don't actually have |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
584 |
// to use the real hardware addresses and IP addresses of the underlying system. We can completely use MAC-spoofing to |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
585 |
// fake out the OS by using the ns-3 assigned MAC address (and also the ns-3 assigned IP addresses). Ns-3 starts its |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
586 |
// MAC address allocation using the OUI (vendor-code) 00:00:00 which is unassigned to any organization and is a globally |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
587 |
// administered address, so there shouldn't be any collisions with real hardware. |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
588 |
// |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
589 |
// So what we do is we return true from EmuNetDevice::NeedsArp which tells ns-3 to use its own ARP. We spoof the |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
590 |
// MAC address of the device and use promiscuous mode to receive traffic destined to that address. |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
591 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
592 |
return SendFrom (packet, m_address, dest, protocolNumber); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
593 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
594 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
595 |
bool |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
596 |
EmuNetDevice::SendFrom (Ptr<Packet> packet, const Address &src, const Address &dest, uint16_t protocolNumber) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
597 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
598 |
NS_LOG_FUNCTION (packet << src << dest << protocolNumber); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
599 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
600 |
if (IsLinkUp () == false) |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
601 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
602 |
NS_LOG_LOGIC ("Link is down, returning"); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
603 |
return false; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
604 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
605 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
606 |
Mac48Address destination = Mac48Address::ConvertFrom (dest); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
607 |
Mac48Address source = Mac48Address::ConvertFrom (src); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
608 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
609 |
NS_LOG_LOGIC ("Transmit packet with UID " << packet->GetUid ()); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
610 |
NS_LOG_LOGIC ("Transmit packet from " << source); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
611 |
NS_LOG_LOGIC ("Transmit packet to " << destination); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
612 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
613 |
#if 0 |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
614 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
615 |
struct ifreq ifr; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
616 |
bzero (&ifr, sizeof(ifr)); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
617 |
strncpy ((char *)ifr.ifr_name, m_deviceName.c_str (), IFNAMSIZ); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
618 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
619 |
NS_LOG_LOGIC ("Getting MAC address"); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
620 |
int32_t rc = ioctl (m_sock, SIOCGIFHWADDR, &ifr); |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
621 |
NS_ASSERT_MSG (rc != -1, "EmuNetDevice::SendFrom(): Can't get MAC address"); |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
622 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
623 |
std::ostringstream oss; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
624 |
oss << std::hex << |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
625 |
(ifr.ifr_hwaddr.sa_data[0] & 0xff) << ":" << |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
626 |
(ifr.ifr_hwaddr.sa_data[1] & 0xff) << ":" << |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
627 |
(ifr.ifr_hwaddr.sa_data[2] & 0xff) << ":" << |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
628 |
(ifr.ifr_hwaddr.sa_data[3] & 0xff) << ":" << |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
629 |
(ifr.ifr_hwaddr.sa_data[4] & 0xff) << ":" << |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
630 |
(ifr.ifr_hwaddr.sa_data[5] & 0xff) << std::dec; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
631 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
632 |
NS_LOG_LOGIC ("Fixup source to HW MAC " << oss.str ()); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
633 |
source = Mac48Address (oss.str ().c_str ()); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
634 |
NS_LOG_LOGIC ("source now " << source); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
635 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
636 |
#endif |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
637 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
638 |
LlcSnapHeader llc; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
639 |
llc.SetType (protocolNumber); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
640 |
packet->AddHeader (llc); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
641 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
642 |
EthernetHeader header (false); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
643 |
header.SetSource (source); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
644 |
header.SetDestination (destination); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
645 |
header.SetLengthType (packet->GetSize ()); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
646 |
packet->AddHeader (header); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
647 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
648 |
EthernetTrailer trailer; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
649 |
trailer.CalcFcs (packet); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
650 |
packet->AddTrailer (trailer); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
651 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
652 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
653 |
// Enqueue and dequeue the packet to hit the tracing hooks. |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
654 |
// |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
655 |
m_queue->Enqueue (packet); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
656 |
packet = m_queue->Dequeue (); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
657 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
658 |
struct sockaddr_ll ll; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
659 |
bzero (&ll, sizeof (ll)); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
660 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
661 |
ll.sll_family = AF_PACKET; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
662 |
ll.sll_ifindex = m_sll_ifindex; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
663 |
ll.sll_protocol = htons(ETH_P_ALL); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
664 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
665 |
NS_LOG_LOGIC ("calling sendto"); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
666 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
667 |
int32_t rc; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
668 |
rc = sendto (m_sock, packet->PeekData (), packet->GetSize (), 0, reinterpret_cast<struct sockaddr *> (&ll), sizeof (ll)); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
669 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
670 |
NS_LOG_LOGIC ("sendto returns " << rc); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
671 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
672 |
return rc == -1 ? false : true; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
673 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
674 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
675 |
void |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
676 |
EmuNetDevice::SetDataRate(DataRate bps) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
677 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
678 |
NS_LOG_FUNCTION (this << bps); |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
679 |
NS_ASSERT_MSG (false, "EmuNetDevice::SetDataRate(): Unable."); |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
680 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
681 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
682 |
void |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
683 |
EmuNetDevice::SetQueue (Ptr<Queue> q) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
684 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
685 |
NS_LOG_FUNCTION (this << q); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
686 |
m_queue = q; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
687 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
688 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
689 |
Ptr<Queue> |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
690 |
EmuNetDevice::GetQueue(void) const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
691 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
692 |
NS_LOG_FUNCTION_NOARGS (); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
693 |
return m_queue; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
694 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
695 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
696 |
void |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
697 |
EmuNetDevice::NotifyLinkUp (void) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
698 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
699 |
m_linkUp = true; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
700 |
if (!m_linkChangeCallback.IsNull ()) |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
701 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
702 |
m_linkChangeCallback (); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
703 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
704 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
705 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
706 |
void |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
707 |
EmuNetDevice::SetName(const std::string name) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
708 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
709 |
m_name = name; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
710 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
711 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
712 |
std::string |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
713 |
EmuNetDevice::GetName(void) const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
714 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
715 |
return m_name; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
716 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
717 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
718 |
void |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
719 |
EmuNetDevice::SetIfIndex(const uint32_t index) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
720 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
721 |
m_ifIndex = index; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
722 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
723 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
724 |
uint32_t |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
725 |
EmuNetDevice::GetIfIndex(void) const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
726 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
727 |
return m_ifIndex; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
728 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
729 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
730 |
Ptr<Channel> |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
731 |
EmuNetDevice::GetChannel (void) const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
732 |
{ |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
733 |
NS_ASSERT_MSG (false, "EmuNetDevice::GetChannel(): Unable."); |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
734 |
return 0; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
735 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
736 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
737 |
void |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
738 |
EmuNetDevice::SetAddress (Mac48Address addr) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
739 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
740 |
NS_LOG_FUNCTION (addr); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
741 |
m_address = addr; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
742 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
743 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
744 |
Address |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
745 |
EmuNetDevice::GetAddress (void) const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
746 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
747 |
NS_LOG_FUNCTION_NOARGS (); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
748 |
return m_address; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
749 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
750 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
751 |
bool |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
752 |
EmuNetDevice::SetMtu (const uint16_t mtu) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
753 |
{ |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
754 |
NS_ASSERT_MSG (false, "EmuNetDevice::SetMtu(): Unable."); |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
755 |
return false; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
756 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
757 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
758 |
uint16_t |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
759 |
EmuNetDevice::GetMtu (void) const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
760 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
761 |
struct ifreq ifr; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
762 |
bzero (&ifr, sizeof (ifr)); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
763 |
strcpy(ifr.ifr_name, m_deviceName.c_str ()); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
764 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
765 |
int32_t fd = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
766 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
767 |
int32_t rc = ioctl(fd, SIOCGIFMTU, &ifr); |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
768 |
NS_ASSERT_MSG (rc != -1, "EmuNetDevice::GetMtu(): Can't ioctl SIOCGIFMTU"); |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
769 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
770 |
close (fd); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
771 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
772 |
return ifr.ifr_mtu; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
773 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
774 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
775 |
bool |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
776 |
EmuNetDevice::IsLinkUp (void) const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
777 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
778 |
return m_linkUp; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
779 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
780 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
781 |
void |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
782 |
EmuNetDevice::SetLinkChangeCallback (Callback<void> callback) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
783 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
784 |
m_linkChangeCallback = callback; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
785 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
786 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
787 |
bool |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
788 |
EmuNetDevice::IsBroadcast (void) const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
789 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
790 |
return true; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
791 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
792 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
793 |
Address |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
794 |
EmuNetDevice::GetBroadcast (void) const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
795 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
796 |
return Mac48Address ("ff:ff:ff:ff:ff:ff"); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
797 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
798 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
799 |
bool |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
800 |
EmuNetDevice::IsMulticast (void) const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
801 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
802 |
return false; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
803 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
804 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
805 |
Address |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
806 |
EmuNetDevice::GetMulticast (void) const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
807 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
808 |
return Mac48Address ("01:00:5e:00:00:00"); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
809 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
810 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
811 |
Address |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
812 |
EmuNetDevice::MakeMulticastAddress (Ipv4Address multicastGroup) const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
813 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
814 |
return Mac48Address ("01:00:5e:00:00:00"); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
815 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
816 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
817 |
bool |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
818 |
EmuNetDevice::IsPointToPoint (void) const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
819 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
820 |
return false; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
821 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
822 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
823 |
void |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
824 |
EmuNetDevice::SetPromiscReceiveCallback (PromiscReceiveCallback cb) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
825 |
{ |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
826 |
NS_ASSERT_MSG (false, "EmuNetDevice::SetPromiscReceiveCallback(): Not implemented"); |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
827 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
828 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
829 |
bool |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
830 |
EmuNetDevice::SupportsSendFrom () const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
831 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
832 |
NS_LOG_FUNCTION_NOARGS (); |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
833 |
return true; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
834 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
835 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
836 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
837 |
Ptr<Node> |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
838 |
EmuNetDevice::GetNode (void) const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
839 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
840 |
return m_node; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
841 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
842 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
843 |
void |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
844 |
EmuNetDevice::SetNode (Ptr<Node> node) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
845 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
846 |
m_node = node; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
847 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
848 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
849 |
bool |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
850 |
EmuNetDevice::NeedsArp (void) const |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
851 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
852 |
return true; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
853 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
854 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
855 |
void |
3830
8862b9be62bb
rework to address suid root issues
Craig Dowell <craigdo@ee.washington.edu>
parents:
3827
diff
changeset
|
856 |
EmuNetDevice::SetReceiveCallback (NetDevice::ReceiveCallback cb) |
3827
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
857 |
{ |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
858 |
m_rxCallback = cb; |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
859 |
} |
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
860 |
|
4b603cd4ee42
give up on merging tap and emulated, break apart
Craig Dowell <craigdo@ee.washington.edu>
parents:
diff
changeset
|
861 |
} // namespace ns3 |