a virtual net device that bridges multiple LAN segments More...
#include <bridge-net-device.h>
Classes | |
struct | LearnedState |
Public Member Functions | |
BridgeNetDevice () | |
virtual | ~BridgeNetDevice () |
void | AddBridgePort (Ptr< NetDevice > bridgePort) |
Add a 'port' to a bridge device. More... | |
virtual void | AddLinkChangeCallback (Callback< void > callback) |
virtual Address | GetAddress (void) const |
Ptr< NetDevice > | GetBridgePort (uint32_t n) const |
virtual Address | GetBroadcast (void) const |
virtual Ptr< Channel > | GetChannel (void) const |
virtual uint32_t | GetIfIndex (void) const |
virtual uint16_t | GetMtu (void) const |
virtual Address | GetMulticast (Ipv4Address multicastGroup) const |
Make and return a MAC multicast address using the provided multicast group. More... | |
virtual Address | GetMulticast (Ipv6Address addr) const |
Get the MAC multicast address corresponding to the IPv6 address provided. More... | |
uint32_t | GetNBridgePorts (void) const |
virtual Ptr< Node > | GetNode (void) const |
virtual bool | IsBridge (void) const |
Return true if the net device is acting as a bridge. More... | |
virtual bool | IsBroadcast (void) const |
virtual bool | IsLinkUp (void) const |
virtual bool | IsMulticast (void) const |
virtual bool | IsPointToPoint (void) const |
Return true if the net device is on a point-to-point link. More... | |
virtual bool | NeedsArp (void) const |
virtual bool | Send (Ptr< Packet > packet, const Address &dest, uint16_t protocolNumber) |
virtual bool | SendFrom (Ptr< Packet > packet, const Address &source, const Address &dest, uint16_t protocolNumber) |
virtual void | SetAddress (Address address) |
Set the address of this interface. More... | |
virtual void | SetIfIndex (const uint32_t index) |
virtual bool | SetMtu (const uint16_t mtu) |
virtual void | SetNode (Ptr< Node > node) |
virtual void | SetPromiscReceiveCallback (NetDevice::PromiscReceiveCallback cb) |
virtual void | SetReceiveCallback (NetDevice::ReceiveCallback cb) |
virtual bool | SupportsSendFrom () const |
Public Member Functions inherited from ns3::NetDevice | |
virtual | ~NetDevice () |
Public Member Functions inherited from ns3::Object | |
Object () | |
virtual | ~Object () |
void | AggregateObject (Ptr< Object > other) |
void | Dispose (void) |
Run the DoDispose methods of this object and all the objects aggregated to it. More... | |
AggregateIterator | GetAggregateIterator (void) const |
virtual TypeId | GetInstanceTypeId (void) const |
template<typename T > | |
Ptr< T > | GetObject (void) const |
template<typename T > | |
Ptr< T > | GetObject (TypeId tid) const |
void | Initialize (void) |
This method calls the virtual DoInitialize method on all the objects aggregated to this object. More... | |
Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter > | |
SimpleRefCount () | |
Constructor. More... | |
SimpleRefCount (const SimpleRefCount &o) | |
Copy constructor. More... | |
uint32_t | GetReferenceCount (void) const |
Get the reference count of the object. More... | |
SimpleRefCount & | operator= (const SimpleRefCount &o) |
Assignment. More... | |
void | Ref (void) const |
Increment the reference count. More... | |
void | Unref (void) const |
Decrement the reference count. More... | |
Public Member Functions inherited from ns3::ObjectBase | |
virtual | ~ObjectBase () |
Virtual destructor. More... | |
void | GetAttribute (std::string name, AttributeValue &value) const |
bool | GetAttributeFailSafe (std::string name, AttributeValue &attribute) const |
void | SetAttribute (std::string name, const AttributeValue &value) |
bool | SetAttributeFailSafe (std::string name, const AttributeValue &value) |
bool | TraceConnect (std::string name, std::string context, const CallbackBase &cb) |
bool | TraceConnectWithoutContext (std::string name, const CallbackBase &cb) |
bool | TraceDisconnect (std::string name, std::string context, const CallbackBase &cb) |
bool | TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb) |
Static Public Member Functions | |
static TypeId | GetTypeId (void) |
Static Public Member Functions inherited from ns3::NetDevice | |
static TypeId | GetTypeId (void) |
Static Public Member Functions inherited from ns3::Object | |
static TypeId | GetTypeId (void) |
Register this type. More... | |
Static Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter > | |
static void | Cleanup (void) |
Noop. More... | |
Static Public Member Functions inherited from ns3::ObjectBase | |
static TypeId | GetTypeId (void) |
Get the type ID. More... | |
Protected Member Functions | |
virtual void | DoDispose (void) |
This method is called by Object::Dispose or by the object's destructor, whichever comes first. More... | |
void | ForwardBroadcast (Ptr< NetDevice > incomingPort, Ptr< const Packet > packet, uint16_t protocol, Mac48Address src, Mac48Address dst) |
void | ForwardUnicast (Ptr< NetDevice > incomingPort, Ptr< const Packet > packet, uint16_t protocol, Mac48Address src, Mac48Address dst) |
Ptr< NetDevice > | GetLearnedState (Mac48Address source) |
void | Learn (Mac48Address source, Ptr< NetDevice > port) |
void | ReceiveFromDevice (Ptr< NetDevice > device, Ptr< const Packet > packet, uint16_t protocol, Address const &source, Address const &destination, PacketType packetType) |
Protected Member Functions inherited from ns3::Object | |
Object (const Object &o) | |
virtual void | DoInitialize (void) |
This method is called only once by Object::Initialize. More... | |
virtual void | NotifyNewAggregate (void) |
This method is invoked whenever two sets of objects are aggregated together. More... | |
Protected Member Functions inherited from ns3::ObjectBase | |
void | ConstructSelf (const AttributeConstructionList &attributes) |
virtual void | NotifyConstructionCompleted (void) |
This method is invoked once all member attributes have been initialized. More... | |
Private Member Functions | |
BridgeNetDevice (const BridgeNetDevice &) | |
BridgeNetDevice & | operator= (const BridgeNetDevice &) |
Private Attributes | |
Mac48Address | m_address |
Ptr< BridgeChannel > | m_channel |
bool | m_enableLearning |
Time | m_expirationTime |
uint32_t | m_ifIndex |
std::map< Mac48Address, LearnedState > | m_learnState |
uint16_t | m_mtu |
Ptr< Node > | m_node |
std::vector< Ptr< NetDevice > > | m_ports |
NetDevice::PromiscReceiveCallback | m_promiscRxCallback |
NetDevice::ReceiveCallback | m_rxCallback |
Additional Inherited Members | |
Public Types inherited from ns3::NetDevice | |
enum | PacketType { PACKET_HOST = 1, NS3_PACKET_HOST = PACKET_HOST, PACKET_BROADCAST, NS3_PACKET_BROADCAST = PACKET_BROADCAST, PACKET_MULTICAST, NS3_PACKET_MULTICAST = PACKET_MULTICAST, PACKET_OTHERHOST, NS3_PACKET_OTHERHOST = PACKET_OTHERHOST } |
Packet types are used as they are in Linux. More... | |
typedef Callback< bool, Ptr < NetDevice >, Ptr< const Packet >, uint16_t, const Address &, const Address &, enum PacketType > | PromiscReceiveCallback |
typedef Callback< bool, Ptr < NetDevice >, Ptr< const Packet >, uint16_t, const Address & > | ReceiveCallback |
a virtual net device that bridges multiple LAN segments
ns3::BridgeNetDevice is accessible through the following paths with Config::Set and Config::Connect:
No TraceSources are defined for this type.
Definition at line 65 of file bridge-net-device.h.
ns3::BridgeNetDevice::BridgeNetDevice | ( | ) |
Definition at line 61 of file bridge-net-device.cc.
References m_channel, and NS_LOG_FUNCTION_NOARGS.
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Definition at line 69 of file bridge-net-device.cc.
References NS_LOG_FUNCTION_NOARGS.
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Add a 'port' to a bridge device.
This method adds a new bridge port to a BridgeNetDevice, so that the new bridge port NetDevice becomes part of the bridge and L2 frames start being forwarded to/from this NetDevice.
bridgePort | NetDevice |
Definition at line 242 of file bridge-net-device.cc.
References ns3::Mac48Address::ConvertFrom(), ns3::Mac48Address::IsMatchingType(), m_address, m_channel, m_node, m_ports, ns3::MakeCallback(), NS_ASSERT, NS_FATAL_ERROR, NS_LOG_DEBUG, NS_LOG_FUNCTION_NOARGS, ReceiveFromDevice(), and ns3::Node::RegisterProtocolHandler().
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callback | the callback to invoke |
Add a callback invoked whenever the link status changes to UP. This callback is typically used by the IP/ARP layer to flush the ARP cache and by IPv6 stack to flush NDISC cache whenever the link goes up.
Implements ns3::NetDevice.
Definition at line 326 of file bridge-net-device.cc.
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This method is called by Object::Dispose or by the object's destructor, whichever comes first.
Subclasses are expected to implement their real destruction code in an overriden version of this method and chain up to their parent's implementation once they are done. i.e., for simplicity, the destructor of every subclass should be empty and its content should be moved to the associated DoDispose method.
It is safe to call GetObject from within this method.
Reimplemented from ns3::Object.
Definition at line 75 of file bridge-net-device.cc.
References ns3::Object::DoDispose(), m_channel, m_node, m_ports, and NS_LOG_FUNCTION_NOARGS.
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Definition at line 167 of file bridge-net-device.cc.
References ns3::Packet::Copy(), ns3::Packet::GetUid(), Learn(), m_ports, NS_LOG_DEBUG, NS_LOG_FUNCTION_NOARGS, NS_LOG_LOGIC, and port.
Referenced by ReceiveFromDevice().
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Definition at line 132 of file bridge-net-device.cc.
References ns3::Packet::Copy(), GetLearnedState(), ns3::Packet::GetUid(), Learn(), m_ports, NS_LOG_DEBUG, NS_LOG_FUNCTION_NOARGS, NS_LOG_LOGIC, and port.
Referenced by ReceiveFromDevice().
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Implements ns3::NetDevice.
Definition at line 295 of file bridge-net-device.cc.
References m_address, and NS_LOG_FUNCTION_NOARGS.
Definition at line 235 of file bridge-net-device.cc.
References m_ports, and NS_LOG_FUNCTION_NOARGS.
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Calling this method is invalid if IsBroadcast returns not true.
Implements ns3::NetDevice.
Definition at line 339 of file bridge-net-device.cc.
References NS_LOG_FUNCTION_NOARGS.
Implements ns3::NetDevice.
Definition at line 281 of file bridge-net-device.cc.
References m_channel, and NS_LOG_FUNCTION_NOARGS.
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Implements ns3::NetDevice.
Definition at line 274 of file bridge-net-device.cc.
References m_ifIndex, and NS_LOG_FUNCTION_NOARGS.
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Definition at line 202 of file bridge-net-device.cc.
References ns3::BridgeNetDevice::LearnedState::associatedPort, ns3::BridgeNetDevice::LearnedState::expirationTime, m_enableLearning, m_learnState, ns3::Simulator::Now(), and NS_LOG_FUNCTION_NOARGS.
Referenced by ForwardUnicast(), and SendFrom().
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This value is typically used by the IP layer to perform IP fragmentation when needed.
Implements ns3::NetDevice.
Definition at line 310 of file bridge-net-device.cc.
References m_mtu, and NS_LOG_FUNCTION_NOARGS.
Referenced by GetTypeId().
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Make and return a MAC multicast address using the provided multicast group.
RFC 1112 says that an Ipv4 host group address is mapped to an Ethernet multicast address by placing the low-order 23-bits of the IP address into the low-order 23 bits of the Ethernet multicast address 01-00-5E-00-00-00 (hex). Similar RFCs exist for Ipv6 and Eui64 mappings. This method performs the multicast address creation function appropriate to the underlying MAC address of the device. This MAC address is encapsulated in an abstract Address to avoid dependencies on the exact MAC address format.
In the case of net devices that do not support multicast, clients are expected to test NetDevice::IsMulticast and avoid attempting to map multicast packets. Subclasses of NetDevice that do support multicasting are expected to override this method and provide an implementation appropriate to the particular device.
multicastGroup | The IP address for the multicast group destination of the packet. |
Implements ns3::NetDevice.
Definition at line 353 of file bridge-net-device.cc.
References ns3::Mac48Address::GetMulticast(), and NS_LOG_FUNCTION.
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Get the MAC multicast address corresponding to the IPv6 address provided.
addr | IPv6 address |
Implements ns3::NetDevice.
Definition at line 458 of file bridge-net-device.cc.
References ns3::Mac48Address::GetMulticast(), and NS_LOG_FUNCTION.
uint32_t ns3::BridgeNetDevice::GetNBridgePorts | ( | void | ) | const |
Definition at line 227 of file bridge-net-device.cc.
References m_ports, and NS_LOG_FUNCTION_NOARGS.
When a subclass needs to get access to the underlying node base class to print the nodeid for example, it can invoke this method.
Implements ns3::NetDevice.
Definition at line 414 of file bridge-net-device.cc.
References m_node, and NS_LOG_FUNCTION_NOARGS.
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Definition at line 36 of file bridge-net-device.cc.
References GetMtu(), m_enableLearning, m_expirationTime, ns3::MakeTimeChecker(), SetMtu(), and ns3::TypeId::SetParent().
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Return true if the net device is acting as a bridge.
Implements ns3::NetDevice.
Definition at line 369 of file bridge-net-device.cc.
References NS_LOG_FUNCTION_NOARGS.
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Implements ns3::NetDevice.
Definition at line 331 of file bridge-net-device.cc.
References NS_LOG_FUNCTION_NOARGS.
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Implements ns3::NetDevice.
Definition at line 318 of file bridge-net-device.cc.
References NS_LOG_FUNCTION_NOARGS.
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Implements ns3::NetDevice.
Definition at line 346 of file bridge-net-device.cc.
References NS_LOG_FUNCTION_NOARGS.
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Return true if the net device is on a point-to-point link.
Implements ns3::NetDevice.
Definition at line 362 of file bridge-net-device.cc.
References NS_LOG_FUNCTION_NOARGS.
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Definition at line 191 of file bridge-net-device.cc.
References ns3::BridgeNetDevice::LearnedState::associatedPort, ns3::BridgeNetDevice::LearnedState::expirationTime, m_enableLearning, m_expirationTime, m_learnState, ns3::Simulator::Now(), NS_LOG_FUNCTION_NOARGS, and port.
Referenced by ForwardBroadcast(), and ForwardUnicast().
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Called by higher-layers to check if this NetDevice requires ARP to be used.
Implements ns3::NetDevice.
Definition at line 430 of file bridge-net-device.cc.
References NS_LOG_FUNCTION_NOARGS.
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Definition at line 89 of file bridge-net-device.cc.
References ns3::Mac48Address::ConvertFrom(), ForwardBroadcast(), ForwardUnicast(), ns3::Packet::GetUid(), ns3::Callback< R, T1, T2, T3, T4, T5, T6, T7, T8, T9 >::IsNull(), m_address, m_promiscRxCallback, m_rxCallback, NS_LOG_DEBUG, NS_LOG_FUNCTION_NOARGS, ns3::NetDevice::PACKET_BROADCAST, ns3::NetDevice::PACKET_HOST, ns3::NetDevice::PACKET_MULTICAST, and ns3::NetDevice::PACKET_OTHERHOST.
Referenced by AddBridgePort().
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packet | packet sent from above down to Network Device |
dest | mac address of the destination (already resolved) |
protocolNumber | identifies the type of payload contained in this packet. Used to call the right L3Protocol when the packet is received. |
Called from higher layer to send packet into Network Device to the specified destination Address
Implements ns3::NetDevice.
Definition at line 377 of file bridge-net-device.cc.
References m_address, NS_LOG_FUNCTION_NOARGS, and SendFrom().
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packet | packet sent from above down to Network Device |
source | source mac address (so called "MAC spoofing") |
dest | mac address of the destination (already resolved) |
protocolNumber | identifies the type of payload contained in this packet. Used to call the right L3Protocol when the packet is received. |
Called from higher layer to send packet into Network Device with the specified source and destination Addresses.
Implements ns3::NetDevice.
Definition at line 384 of file bridge-net-device.cc.
References ns3::Mac48Address::ConvertFrom(), GetLearnedState(), ns3::Mac48Address::IsGroup(), m_ports, NS_LOG_FUNCTION_NOARGS, and port.
Referenced by Send().
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Set the address of this interface.
address | address to set |
Implements ns3::NetDevice.
Definition at line 288 of file bridge-net-device.cc.
References ns3::Mac48Address::ConvertFrom(), m_address, and NS_LOG_FUNCTION_NOARGS.
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index | ifIndex of the device |
Implements ns3::NetDevice.
Definition at line 267 of file bridge-net-device.cc.
References m_ifIndex, and NS_LOG_FUNCTION_NOARGS.
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mtu | MTU value, in bytes, to set for the device |
Override for default MTU defined on a per-type basis.
Implements ns3::NetDevice.
Definition at line 302 of file bridge-net-device.cc.
References m_mtu, and NS_LOG_FUNCTION_NOARGS.
Referenced by GetTypeId().
node | the node associated to this netdevice. |
This method is called from ns3::Node::AddDevice.
Implements ns3::NetDevice.
Definition at line 422 of file bridge-net-device.cc.
References m_node, and NS_LOG_FUNCTION_NOARGS.
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cb | callback to invoke whenever a packet has been received in promiscuous mode and must be forwarded to the higher layers. |
Enables netdevice promiscuous mode and sets the callback that will handle promiscuous mode packets. Note, promiscuous mode packets means all packets, including those packets that can be sensed by the netdevice but which are intended to be received by other hosts.
Implements ns3::NetDevice.
Definition at line 445 of file bridge-net-device.cc.
References m_promiscRxCallback, and NS_LOG_FUNCTION_NOARGS.
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cb | callback to invoke whenever a packet has been received and must be forwarded to the higher layers. |
Implements ns3::NetDevice.
Definition at line 438 of file bridge-net-device.cc.
References m_rxCallback, and NS_LOG_FUNCTION_NOARGS.
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Implements ns3::NetDevice.
Definition at line 452 of file bridge-net-device.cc.
References NS_LOG_FUNCTION_NOARGS.
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Definition at line 136 of file bridge-net-device.h.
Referenced by AddBridgePort(), GetAddress(), ReceiveFromDevice(), Send(), and SetAddress().
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Definition at line 145 of file bridge-net-device.h.
Referenced by AddBridgePort(), BridgeNetDevice(), DoDispose(), and GetChannel().
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Definition at line 149 of file bridge-net-device.h.
Referenced by GetLearnedState(), GetTypeId(), and Learn().
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Definition at line 137 of file bridge-net-device.h.
Referenced by GetTypeId(), and Learn().
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Definition at line 147 of file bridge-net-device.h.
Referenced by GetIfIndex(), and SetIfIndex().
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Definition at line 143 of file bridge-net-device.h.
Referenced by GetLearnedState(), and Learn().
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Definition at line 148 of file bridge-net-device.h.
Definition at line 144 of file bridge-net-device.h.
Referenced by AddBridgePort(), DoDispose(), GetNode(), and SetNode().
Definition at line 146 of file bridge-net-device.h.
Referenced by AddBridgePort(), DoDispose(), ForwardBroadcast(), ForwardUnicast(), GetBridgePort(), GetNBridgePorts(), and SendFrom().
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Definition at line 134 of file bridge-net-device.h.
Referenced by ReceiveFromDevice(), and SetPromiscReceiveCallback().
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Definition at line 133 of file bridge-net-device.h.
Referenced by ReceiveFromDevice(), and SetReceiveCallback().