--- a/src/devices/wifi/mac-high-adhoc.cc Mon Mar 03 04:42:16 2008 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,112 +0,0 @@
-/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2005 INRIA
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation;
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
- */
-
-#include "mac-high-adhoc.h"
-#include "dca-txop.h"
-#include "wifi-net-device.h"
-#include "mac-stations.h"
-#include "wifi-phy.h"
-#include "ns3/packet.h"
-#include "ns3/log.h"
-
-NS_LOG_COMPONENT_DEFINE ("MacHighAdhoc");
-
-namespace ns3 {
-
-MacHighAdhoc::MacHighAdhoc ()
-{}
-MacHighAdhoc::~MacHighAdhoc ()
-{
- m_phy = 0;
-}
-
-void
-MacHighAdhoc::SetDevice (WifiNetDevice *device)
-{
- m_device = device;
-
-}
-void
-MacHighAdhoc::SetForwardCallback (ForwardCallback callback)
-{
- m_callback = callback;
-}
-void
-MacHighAdhoc::SetDcaTxop (Ptr<DcaTxop> dca)
-{
- m_dca = dca;
-}
-void
-MacHighAdhoc::SetStations (MacStations *stations)
-{
- m_stations = stations;
-}
-void
-MacHighAdhoc::SetPhy (Ptr<WifiPhy> phy)
-{
- m_phy = phy;
-}
-
-Mac48Address
-MacHighAdhoc::GetBssid (void) const
-{
- // XXX the bssid should be generated by the procedure
- // described in ieee802.11 section 11.1.3
- return Mac48Address::GetBroadcast ();
-}
-
-void
-MacHighAdhoc::Enqueue (Ptr<const Packet> packet, Mac48Address to)
-{
- NS_LOG_DEBUG ("enqueue size="<<packet->GetSize ()<<", to="<<to);
- WifiMacHeader hdr;
- hdr.SetType (WIFI_MAC_DATA);
- hdr.SetAddr1 (to);
- hdr.SetAddr2 (m_device->GetSelfAddress ());
- hdr.SetAddr3 (m_device->GetBssid ());
- hdr.SetDsNotFrom ();
- hdr.SetDsNotTo ();
-
- MacStation *destination = m_stations->Lookup (to);
- if (destination->IsBrandNew ())
- {
- // in adhoc mode, we assume that every destination
- // supports all the rates we support.
- for (uint32_t i = 0; i < m_phy->GetNModes (); i++)
- {
- destination->AddSupportedMode (m_phy->GetMode (i));
- }
- destination->RecordDisassociated ();
- }
-
- m_dca->Queue (packet, hdr);
-}
-
-void
-MacHighAdhoc::Receive (Ptr<Packet> packet, WifiMacHeader const *hdr)
-{
- NS_LOG_DEBUG ("received size="<<packet->GetSize ()<<", from="<<hdr->GetAddr2 ());
- if (hdr->GetAddr1 ().IsBroadcast () || hdr->GetAddr1 () == m_device->GetSelfAddress ())
- {
- m_callback (packet, hdr->GetAddr2 ());
- }
-}
-
-} // namespace ns3
--- a/src/devices/wifi/mac-high-adhoc.h Mon Mar 03 04:42:16 2008 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,72 +0,0 @@
-/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2005 INRIA
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation;
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
- */
-#ifndef MAC_HIGH_ADHOC_H
-#define MAC_HIGH_ADHOC_H
-
-#include "ns3/mac48-address.h"
-#include "ns3/callback.h"
-#include "ns3/packet.h"
-
-namespace ns3 {
-
-class DcaTxop;
-class Packet;
-class WifiNetDevice;
-class WifiMacHeader;
-class MacStations;
-class WifiPhy;
-
-/**
- * \brief the Adhoc state machine
- *
- * For now, this class is really empty but it should contain
- * the code for the distributed generation of beacons in an adhoc
- * network.
- */
-class MacHighAdhoc {
-public:
- typedef Callback<void, Ptr<Packet>, const Mac48Address &> ForwardCallback;
-
- MacHighAdhoc ();
- ~MacHighAdhoc ();
-
- void SetDevice (WifiNetDevice *device);
- void SetForwardCallback (ForwardCallback callback);
- void SetDcaTxop (Ptr<DcaTxop> dca);
- void SetStations (MacStations *stations);
- void SetPhy (Ptr<WifiPhy> phy);
-
- Mac48Address GetBssid (void) const;
-
- void Enqueue (Ptr<const Packet> packet, Mac48Address to);
-
- /* invoked by the MacLows. */
- void Receive (Ptr<Packet> packet, WifiMacHeader const*hdr);
-private:
- Ptr<DcaTxop> m_dca;
- WifiNetDevice *m_device;
- ForwardCallback m_callback;
- MacStations *m_stations;
- Ptr<WifiPhy> m_phy;
-};
-
-} // namespace ns3
-
-#endif /* MAC_HIGH_ADHOC_H */
--- a/src/devices/wifi/mac-high-nqap.cc Mon Mar 03 04:42:16 2008 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,340 +0,0 @@
-/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2005,2006 INRIA
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation;
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
- */
-#include "mac-high-nqap.h"
-#include "mac-stations.h"
-#include "dca-txop.h"
-#include "wifi-net-device.h"
-#include "wifi-mac-header.h"
-#include "wifi-default-parameters.h"
-#include "mgt-headers.h"
-#include "wifi-phy.h"
-#include "ns3/assert.h"
-#include "ns3/log.h"
-#include "ns3/simulator.h"
-#include "ns3/node.h"
-
-NS_LOG_COMPONENT_DEFINE ("MacHighNqap");
-
-#define TRACE(x) \
- NS_LOG_DEBUG(Simulator::Now () << " " << m_phy->GetDevice ()->GetNode ()->GetId () << ":" << \
- m_phy->GetDevice ()->GetIfIndex () << " " << x);
-
-namespace ns3 {
-
-MacHighNqap::MacHighNqap ()
- : m_beaconInterval (WifiDefaultParameters::GetApBeaconInterval ())
-{}
-MacHighNqap::~MacHighNqap ()
-{
- m_phy = 0;
-}
-
-void
-MacHighNqap::SetDcaTxop (Ptr<DcaTxop> dca)
-{
- m_dca = dca;
- m_dca->SetTxOkCallback (MakeCallback (&MacHighNqap::TxOk, this));
- m_dca->SetTxFailedCallback (MakeCallback (&MacHighNqap::TxFailed, this));
-}
-void
-MacHighNqap::SetBeaconDcaTxop (Ptr<DcaTxop> dca)
-{
- // we do not need to be notified when a beacon has been transmitted
- // successfully or not.
- m_beaconDca = dca;
-}
-void
-MacHighNqap::SetDevice (WifiNetDevice *device)
-{
- m_device = device;
-}
-void
-MacHighNqap::SetStations (MacStations *stations)
-{
- m_stations = stations;
-}
-void
-MacHighNqap::SetPhy (Ptr<WifiPhy> phy)
-{
- m_phy = phy;
-}
-void
-MacHighNqap::SetForwardCallback (ForwardCallback callback)
-{
- m_forwardUp = callback;
-}
-void
-MacHighNqap::SetBeaconInterval (Time interval)
-{
- m_beaconInterval = interval;
-}
-void
-MacHighNqap::StartBeaconing (void)
-{
- SendOneBeacon ();
-}
-void
-MacHighNqap::ForwardDown (Ptr<const Packet> packet, Mac48Address from, Mac48Address to)
-{
- WifiMacHeader hdr;
- hdr.SetTypeData ();
- hdr.SetAddr1 (to);
- hdr.SetAddr2 (m_device->GetSelfAddress ());
- hdr.SetAddr3 (from);
- hdr.SetDsFrom ();
- hdr.SetDsNotTo ();
- m_dca->Queue (packet, hdr);
-}
-void
-MacHighNqap::Queue (Ptr<const Packet> packet, Mac48Address to)
-{
- ForwardDown (packet, m_device->GetSelfAddress (), to);
-}
-SupportedRates
-MacHighNqap::GetSupportedRates (void) const
-{
- // send the set of supported rates and make sure that we indicate
- // the Basic Rate set in this set of supported rates.
- SupportedRates rates;
- for (uint32_t i = 0; i < m_phy->GetNModes (); i++)
- {
- WifiMode mode = m_phy->GetMode (i);
- rates.AddSupportedRate (mode.GetDataRate ());
- }
- // set the basic rates
- for (uint32_t j = 0; j < m_stations->GetNBasicModes (); j++)
- {
- WifiMode mode = m_stations->GetBasicMode (j);
- rates.SetBasicRate (mode.GetDataRate ());
- }
- return rates;
-}
-void
-MacHighNqap::SendProbeResp (Mac48Address to)
-{
- TRACE ("send probe response to="<<to);
- WifiMacHeader hdr;
- hdr.SetProbeResp ();
- hdr.SetAddr1 (to);
- hdr.SetAddr2 (m_device->GetSelfAddress ());
- hdr.SetAddr3 (m_device->GetSelfAddress ());
- hdr.SetDsNotFrom ();
- hdr.SetDsNotTo ();
- Ptr<Packet> packet = Create<Packet> ();
- MgtProbeResponseHeader probe;
- probe.SetSsid (m_device->GetSsid ());
- probe.SetSupportedRates (GetSupportedRates ());
- probe.SetBeaconIntervalUs (m_beaconInterval.GetMicroSeconds ());
- packet->AddHeader (probe);
-
- m_dca->Queue (packet, hdr);
-}
-void
-MacHighNqap::SendAssocResp (Mac48Address to, bool success)
-{
- TRACE ("send assoc response to="<<to);
- WifiMacHeader hdr;
- hdr.SetAssocResp ();
- hdr.SetAddr1 (to);
- hdr.SetAddr2 (m_device->GetSelfAddress ());
- hdr.SetAddr3 (m_device->GetSelfAddress ());
- hdr.SetDsNotFrom ();
- hdr.SetDsNotTo ();
- Ptr<Packet> packet = Create<Packet> ();
- MgtAssocResponseHeader assoc;
- StatusCode code;
- if (success)
- {
- code.SetSuccess ();
- }
- else
- {
- code.SetFailure ();
- }
- assoc.SetSupportedRates (GetSupportedRates ());
- assoc.SetStatusCode (code);
- packet->AddHeader (assoc);
-
- m_dca->Queue (packet, hdr);
-}
-void
-MacHighNqap::SendOneBeacon (void)
-{
- TRACE ("send beacon to="<<Mac48Address::GetBroadcast ());
- WifiMacHeader hdr;
- hdr.SetBeacon ();
- hdr.SetAddr1 (Mac48Address::GetBroadcast ());
- hdr.SetAddr2 (m_device->GetSelfAddress ());
- hdr.SetAddr3 (m_device->GetSelfAddress ());
- hdr.SetDsNotFrom ();
- hdr.SetDsNotTo ();
- Ptr<Packet> packet = Create<Packet> ();
- MgtBeaconHeader beacon;
- beacon.SetSsid (m_device->GetSsid ());
- beacon.SetSupportedRates (GetSupportedRates ());
- beacon.SetBeaconIntervalUs (m_beaconInterval.GetMicroSeconds ());
- packet->AddHeader (beacon);
-
- m_beaconDca->Queue (packet, hdr);
- Simulator::Schedule (m_beaconInterval, &MacHighNqap::SendOneBeacon, this);
-}
-void
-MacHighNqap::TxOk (WifiMacHeader const &hdr)
-{
- MacStation *station = m_stations->Lookup (hdr.GetAddr1 ());
- if (hdr.IsAssocResp () &&
- station->IsWaitAssocTxOk ())
- {
- TRACE ("associated with sta="<<hdr.GetAddr1 ());
- station->RecordGotAssocTxOk ();
- }
-}
-void
-MacHighNqap::TxFailed (WifiMacHeader const &hdr)
-{
- MacStation *station = m_stations->Lookup (hdr.GetAddr1 ());
- if (hdr.IsAssocResp () &&
- station->IsWaitAssocTxOk ())
- {
- TRACE ("assoc failed with sta="<<hdr.GetAddr1 ());
- station->RecordGotAssocTxFailed ();
- }
-}
-void
-MacHighNqap::Receive (Ptr<Packet> packet, WifiMacHeader const *hdr)
-{
- MacStation *station = m_stations->Lookup (hdr->GetAddr2 ());
-
- if (hdr->IsData ())
- {
- if (!hdr->IsFromDs () &&
- hdr->IsToDs () &&
- hdr->GetAddr1 () == m_device->GetSelfAddress () &&
- station->IsAssociated ())
- {
- if (hdr->GetAddr3 () == m_device->GetSelfAddress ())
- {
- TRACE ("frame for me from="<<hdr->GetAddr2 ());
- m_forwardUp (packet, hdr->GetAddr2 ());
- }
- else
- {
- TRACE ("forwarding frame from="<<hdr->GetAddr2 ()<<", to="<<hdr->GetAddr3 ());
- Ptr<Packet> copy = packet->Copy ();
- ForwardDown (packet,
- hdr->GetAddr2 (),
- hdr->GetAddr3 ());
- m_forwardUp (copy, hdr->GetAddr2 ());
- }
- }
- else if (hdr->IsFromDs () &&
- hdr->IsToDs ())
- {
- // this is an AP-to-AP frame
- // we ignore for now.
- }
- else
- {
- // we can ignore these frames since
- // they are not targeted at the AP
- }
- }
- else if (hdr->IsMgt ())
- {
- if (hdr->IsProbeReq ())
- {
- NS_ASSERT (hdr->GetAddr1 ().IsBroadcast ());
- SendProbeResp (hdr->GetAddr2 ());
- }
- else if (hdr->GetAddr1 () == m_device->GetSelfAddress ())
- {
- if (hdr->IsAssocReq ())
- {
- // first, verify that the the station's supported
- // rate set is compatible with our Basic Rate set
- MgtAssocRequestHeader assocReq;
- packet->RemoveHeader (assocReq);
- SupportedRates rates = assocReq.GetSupportedRates ();
- bool problem = false;
- for (uint32_t i = 0; i < m_stations->GetNBasicModes (); i++)
- {
- WifiMode mode = m_stations->GetBasicMode (i);
- if (!rates.IsSupportedRate (mode.GetDataRate ()))
- {
- problem = true;
- break;
- }
- }
- if (problem)
- {
- // one of the Basic Rate set mode is not
- // supported by the station. So, we return an assoc
- // response with an error status.
- SendAssocResp (hdr->GetAddr2 (), false);
- }
- else
- {
- // station supports all rates in Basic Rate Set.
- // record all its supported modes in its associated MacStation
- for (uint32_t j = 0; j < m_phy->GetNModes (); j++)
- {
- WifiMode mode = m_phy->GetMode (j);
- if (rates.IsSupportedRate (mode.GetDataRate ()))
- {
- station->AddSupportedMode (mode);
- }
- }
- station->RecordWaitAssocTxOk ();
- // send assoc response with success status.
- SendAssocResp (hdr->GetAddr2 (), true);
- }
- }
- else if (hdr->IsDisassociation ())
- {
- station->RecordDisassociated ();
- }
- else if (hdr->IsReassocReq ())
- {
- /* we don't support reassoc frames for now */
- }
- else if (hdr->IsAuthentication () ||
- hdr->IsDeauthentication ())
- {
- /*
- */
- }
- else
- {
- /* unknown mgt frame
- */
- }
- }
- }
- else
- {
- /* damn, what could this be ? a control frame ?
- * control frames should never reach the MacHigh so,
- * this is likely to be a bug. assert.
- */
- NS_ASSERT (false);
- }
-}
-
-} // namespace ns3
--- a/src/devices/wifi/mac-high-nqap.h Mon Mar 03 04:42:16 2008 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,94 +0,0 @@
-/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2005,2006 INRIA
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation;
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
- */
-#ifndef MAC_HIGH_NQAP_H
-#define MAC_HIGH_NQAP_H
-
-#include <stdint.h>
-#include "ns3/mac48-address.h"
-#include "ns3/callback.h"
-#include "ns3/packet.h"
-#include "ns3/nstime.h"
-#include "supported-rates.h"
-
-namespace ns3 {
-
-class WifiMacHeader;
-class WifiNetDevice;
-class DcaTxop;
-class MacStations;
-class WifiPhy;
-
-/**
- * \brief non-QoS AP state machine
- *
- * Handle association, dis-association and authentication,
- * of STAs within an IBSS.
- * This class uses two output queues, each of which is server by
- * a single DCF
- * - the highest priority DCF serves the queue which contains
- * only beacons.
- * - the lowest priority DCF serves the queue which contains all
- * other frames, including user data frames.
- */
-class MacHighNqap {
-public:
- typedef Callback<void, Ptr<Packet>, const Mac48Address &> ForwardCallback;
-
- MacHighNqap ();
- ~MacHighNqap ();
-
- void SetDcaTxop (Ptr<DcaTxop> dca);
- void SetBeaconDcaTxop (Ptr<DcaTxop> dca);
- void SetDevice (WifiNetDevice *device);
- void SetStations (MacStations *stations);
- void SetPhy (Ptr<WifiPhy> phy);
- void SetForwardCallback (ForwardCallback callback);
- void SetBeaconInterval (Time interval);
-
- void Queue (Ptr<const Packet> packet, Mac48Address to);
-
- /**
- * Start beacon transmission immediately.
- */
- void StartBeaconing (void);
-
- void Receive (Ptr<Packet> packet, WifiMacHeader const *hdr);
-private:
- void ForwardDown (Ptr<const Packet> packet, Mac48Address from, Mac48Address to);
- void TxOk (WifiMacHeader const &hdr);
- void TxFailed (WifiMacHeader const &hdr);
- void SendProbeResp (Mac48Address to);
- void SendAssocResp (Mac48Address to, bool success);
- void SendOneBeacon (void);
- SupportedRates GetSupportedRates (void) const;
-
- Ptr<DcaTxop> m_dca;
- Ptr<DcaTxop> m_beaconDca;
- WifiNetDevice *m_device;
- MacStations *m_stations;
- Ptr<WifiPhy> m_phy;
- ForwardCallback m_forwardUp;
- Time m_beaconInterval;
-};
-
-} // namespace ns3
-
-
-#endif /* MAC_HIGH_NQAP_H */
--- a/src/devices/wifi/mac-high-nqsta.cc Mon Mar 03 04:42:16 2008 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,414 +0,0 @@
-/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2005,2006 INRIA
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation;
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
- */
-
-#include "ns3/packet.h"
-#include "ns3/simulator.h"
-#include "ns3/assert.h"
-#include "ns3/log.h"
-#include "ns3/node.h"
-
-#include "mac-high-nqsta.h"
-#include "wifi-mac-header.h"
-#include "wifi-net-device.h"
-#include "mgt-headers.h"
-#include "wifi-phy.h"
-#include "dca-txop.h"
-#include "mac-stations.h"
-
-NS_LOG_COMPONENT_DEFINE ("MacHighNqsta");
-
-#define TRACE(x) \
- NS_LOG_DEBUG (Simulator::Now () << " " << m_phy->GetDevice ()->GetNode ()->GetId () << ":" << \
- m_phy->GetDevice ()->GetIfIndex () << " " << x);
-
-/*
- * The state machine for this NQSTA is:
- -------------- -----------
- | Associated | <-------------------- -------> | Refused |
- -------------- \ / -----------
- \ \ /
- \ ----------------- -----------------------------
- \-> | Beacon Missed | --> | Wait Association Response |
- ----------------- -----------------------------
- \ ^
- \ |
- \ -----------------------
- \-> | Wait Probe Response |
- -----------------------
- */
-
-
-namespace ns3 {
-
-MacHighNqsta::MacHighNqsta ()
- : m_state (BEACON_MISSED),
- m_probeRequestTimeout (Seconds (0.5)),
- m_assocRequestTimeout (Seconds (0.5)),
- m_probeRequestEvent (),
- m_assocRequestEvent (),
- m_beaconWatchdogEnd (Seconds (0.0))
-{
- // this is the default value for the number of beacons missed
- // before attempting to reassociate.
- m_maxMissedBeacons = 10;
-}
-
-MacHighNqsta::~MacHighNqsta ()
-{
- m_phy = 0;
-}
-
-void
-MacHighNqsta::SetDcaTxop (Ptr<DcaTxop> dca)
-{
- m_dca = dca;
-}
-void
-MacHighNqsta::SetDevice (WifiNetDevice *device)
-{
- m_device = device;
-}
-void
-MacHighNqsta::SetForwardCallback (ForwardCallback callback)
-{
- m_forward = callback;
-}
-void
-MacHighNqsta::SetAssociatedCallback (AssociatedCallback callback)
-{
- m_associatedCallback = callback;
-}
-void
-MacHighNqsta::SetDisAssociatedCallback (DisAssociatedCallback callback)
-{
- m_disAssociatedCallback = callback;
-}
-void
-MacHighNqsta::SetPhy (Ptr<WifiPhy> phy)
-{
- m_phy = phy;
-}
-void
-MacHighNqsta::SetStations (MacStations *stations)
-{
- m_stations = stations;
-}
-
-void
-MacHighNqsta::SetMaxMissedBeacons (uint32_t missed)
-{
- m_maxMissedBeacons = missed;
-}
-void
-MacHighNqsta::SetProbeRequestTimeout (Time timeout)
-{
- m_probeRequestTimeout = timeout;
-}
-void
-MacHighNqsta::SetAssocRequestTimeout (Time timeout)
-{
- m_assocRequestTimeout = timeout;
-}
-
-Mac48Address
-MacHighNqsta::GetBssid (void) const
-{
- return m_bssid;
-}
-void
-MacHighNqsta::SetBssid (Mac48Address bssid)
-{
- m_bssid = bssid;
-
-}
-void
-MacHighNqsta::StartActiveAssociation (void)
-{
- TryToEnsureAssociated ();
-}
-
-Mac48Address
-MacHighNqsta::GetBroadcastBssid (void)
-{
- return Mac48Address::GetBroadcast ();
-}
-
-void
-MacHighNqsta::SendProbeRequest (void)
-{
- TRACE ("send probe request");
- WifiMacHeader hdr;
- hdr.SetProbeReq ();
- hdr.SetAddr1 (GetBroadcastBssid ());
- hdr.SetAddr2 (m_device->GetSelfAddress ());
- hdr.SetAddr3 (GetBroadcastBssid ());
- hdr.SetDsNotFrom ();
- hdr.SetDsNotTo ();
- Ptr<Packet> packet = Create<Packet> ();
- MgtProbeRequestHeader probe;
- probe.SetSsid (m_device->GetSsid ());
- probe.SetSupportedRates (GetSupportedRates ());
- packet->AddHeader (probe);
-
- m_dca->Queue (packet, hdr);
-
- m_probeRequestEvent = Simulator::Schedule (m_probeRequestTimeout,
- &MacHighNqsta::ProbeRequestTimeout, this);
-}
-
-void
-MacHighNqsta::SendAssociationRequest (void)
-{
- TRACE ("send assoc request to=" << GetBssid ());
- WifiMacHeader hdr;
- hdr.SetAssocReq ();
- hdr.SetAddr1 (GetBssid ());
- hdr.SetAddr2 (m_device->GetSelfAddress ());
- hdr.SetAddr3 (GetBssid ());
- hdr.SetDsNotFrom ();
- hdr.SetDsNotTo ();
- Ptr<Packet> packet = Create<Packet> ();
- MgtAssocRequestHeader assoc;
- assoc.SetSsid (m_device->GetSsid ());
- assoc.SetSupportedRates (GetSupportedRates ());
- packet->AddHeader (assoc);
-
- m_dca->Queue (packet, hdr);
-
- m_assocRequestEvent = Simulator::Schedule (m_assocRequestTimeout,
- &MacHighNqsta::AssocRequestTimeout, this);
-}
-void
-MacHighNqsta::TryToEnsureAssociated (void)
-{
- switch (m_state) {
- case ASSOCIATED:
- return;
- break;
- case WAIT_PROBE_RESP:
- /* we have sent a probe request earlier so we
- do not need to re-send a probe request immediately.
- We just need to wait until probe-request-timeout
- or until we get a probe response
- */
- break;
- case BEACON_MISSED:
- /* we were associated but we missed a bunch of beacons
- * so we should assume we are not associated anymore.
- * We try to initiate a probe request now.
- */
- m_disAssociatedCallback ();
- m_state = WAIT_PROBE_RESP;
- SendProbeRequest ();
- break;
- case WAIT_ASSOC_RESP:
- /* we have sent an assoc request so we do not need to
- re-send an assoc request right now. We just need to
- wait until either assoc-request-timeout or until
- we get an assoc response.
- */
- break;
- case REFUSED:
- /* we have sent an assoc request and received a negative
- assoc resp. We wait until someone restarts an
- association with a given ssid.
- */
- break;
- }
-}
-
-void
-MacHighNqsta::AssocRequestTimeout (void)
-{
- TRACE ("assoc request timeout");
- m_state = WAIT_ASSOC_RESP;
- SendAssociationRequest ();
-}
-void
-MacHighNqsta::ProbeRequestTimeout (void)
-{
- TRACE ("probe request timeout");
- m_state = WAIT_PROBE_RESP;
- SendProbeRequest ();
-}
-void
-MacHighNqsta::MissedBeacons (void)
-{
- if (m_beaconWatchdogEnd > Simulator::Now ())
- {
- m_beaconWatchdog = Simulator::Schedule (m_beaconWatchdogEnd - Simulator::Now (),
- &MacHighNqsta::MissedBeacons, this);
- return;
- }
- TRACE ("beacon missed");
- m_state = BEACON_MISSED;
- TryToEnsureAssociated ();
-}
-void
-MacHighNqsta::RestartBeaconWatchdog (Time delay)
-{
- m_beaconWatchdogEnd = std::max (Simulator::Now () + delay, m_beaconWatchdogEnd);
- if (Simulator::GetDelayLeft (m_beaconWatchdog) < delay &&
- m_beaconWatchdog.IsExpired ())
- {
- m_beaconWatchdog = Simulator::Schedule (delay, &MacHighNqsta::MissedBeacons, this);
- }
-}
-bool
-MacHighNqsta::IsAssociated (void)
-{
- return (m_state == ASSOCIATED)?true:false;
-}
-
-void
-MacHighNqsta::Queue (Ptr<const Packet> packet, Mac48Address to)
-{
- if (!IsAssociated ())
- {
- TryToEnsureAssociated ();
- return;
- }
- //TRACE ("enqueue size="<<packet->GetSize ()<<", to="<<to);
- WifiMacHeader hdr;
- hdr.SetTypeData ();
- hdr.SetAddr1 (GetBssid ());
- hdr.SetAddr2 (m_device->GetSelfAddress ());
- hdr.SetAddr3 (to);
- hdr.SetDsNotFrom ();
- hdr.SetDsTo ();
- m_dca->Queue (packet, hdr);
-}
-
-void
-MacHighNqsta::Receive (Ptr<Packet> packet, WifiMacHeader const *hdr)
-{
- NS_ASSERT (!hdr->IsCtl ());
- if (hdr->GetAddr1 () != m_device->GetSelfAddress () &&
- !hdr->GetAddr1 ().IsBroadcast ())
- {
- // packet is not for us
- }
- else if (hdr->IsData ())
- {
- m_forward (packet, hdr->GetAddr2 ());
- }
- else if (hdr->IsProbeReq () ||
- hdr->IsAssocReq ())
- {
- /* this is a frame aimed at an AP.
- * so we can safely ignore it.
- */
- }
- else if (hdr->IsBeacon ())
- {
- MgtBeaconHeader beacon;
- packet->RemoveHeader (beacon);
- bool goodBeacon = false;
- if (m_device->GetSsid ().IsBroadcast () ||
- beacon.GetSsid ().IsEqual (m_device->GetSsid ()))
- {
- Time delay = MicroSeconds (beacon.GetBeaconIntervalUs () * m_maxMissedBeacons);
- RestartBeaconWatchdog (delay);
- goodBeacon = true;
- }
- if (goodBeacon)
- {
- SetBssid (hdr->GetAddr3 ());
- }
- if (goodBeacon && m_state == BEACON_MISSED)
- {
- m_state = WAIT_ASSOC_RESP;
- SendAssociationRequest ();
- }
- }
- else if (hdr->IsProbeResp ())
- {
- if (m_state == WAIT_PROBE_RESP)
- {
- MgtProbeResponseHeader probeResp;
- packet->RemoveHeader (probeResp);
- if (!probeResp.GetSsid ().IsEqual (m_device->GetSsid ()))
- {
- //not a probe resp for our ssid.
- return;
- }
- SetBssid (hdr->GetAddr3 ());
- Time delay = MicroSeconds (probeResp.GetBeaconIntervalUs () * m_maxMissedBeacons);
- RestartBeaconWatchdog (delay);
- if (m_probeRequestEvent.IsRunning ())
- {
- m_probeRequestEvent.Cancel ();
- }
- m_state = WAIT_ASSOC_RESP;
- SendAssociationRequest ();
- }
- }
- else if (hdr->IsAssocResp ())
- {
- if (m_state == WAIT_ASSOC_RESP)
- {
- MgtAssocResponseHeader assocResp;
- packet->RemoveHeader (assocResp);
- if (m_assocRequestEvent.IsRunning ())
- {
- m_assocRequestEvent.Cancel ();
- }
- if (assocResp.GetStatusCode ().IsSuccess ())
- {
- m_state = ASSOCIATED;
- TRACE ("assoc completed");
- SupportedRates rates = assocResp.GetSupportedRates ();
- MacStation *ap = m_stations->Lookup (hdr->GetAddr2 ());
- for (uint32_t i = 0; i < m_phy->GetNModes (); i++)
- {
- WifiMode mode = m_phy->GetMode (i);
- if (rates.IsSupportedRate (mode.GetDataRate ()))
- {
- ap->AddSupportedMode (mode);
- if (rates.IsBasicRate (mode.GetDataRate ()))
- {
- m_stations->AddBasicMode (mode);
- }
- }
- }
- m_associatedCallback ();
- }
- else
- {
- TRACE ("assoc refused");
- m_state = REFUSED;
- }
- }
- }
-}
-
-SupportedRates
-MacHighNqsta::GetSupportedRates (void) const
-{
- SupportedRates rates;
- for (uint32_t i = 0; i < m_phy->GetNModes (); i++)
- {
- WifiMode mode = m_phy->GetMode (i);
- rates.AddSupportedRate (mode.GetDataRate ());
- }
- return rates;
-}
-
-} // namespace ns3
--- a/src/devices/wifi/mac-high-nqsta.h Mon Mar 03 04:42:16 2008 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,137 +0,0 @@
-/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2005,2006 INRIA
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation;
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
- */
-#ifndef MAC_HIGH_NQSTA_H
-#define MAC_HIGH_NQSTA_H
-
-#include <stdint.h>
-
-#include "ns3/mac48-address.h"
-#include "ns3/callback.h"
-#include "ns3/event-id.h"
-#include "ns3/packet.h"
-#include "ns3/nstime.h"
-
-#include "supported-rates.h"
-
-namespace ns3 {
-
-class WifiMacHeader;
-class WifiNetDevice;
-class DcaTxop;
-class WifiPhy;
-class MacStations;
-
-/**
- * \brief a non-QoS STA state machine
- *
- * This state machine handles association, disassociation,
- * authentication and beacon monitoring. It does not perform
- * channel scanning.
- * If the station detects a certain number of missed beacons
- * while associated, it automatically attempts a new association
- * sequence.
- */
-class MacHighNqsta {
-public:
- typedef Callback<void, Ptr<Packet>, const Mac48Address &> ForwardCallback;
- typedef Callback<void> AssociatedCallback;
- typedef Callback<void> DisAssociatedCallback;
-
- MacHighNqsta ();
- ~MacHighNqsta ();
-
- void SetDcaTxop (Ptr<DcaTxop> dca);
- void SetDevice (WifiNetDevice *device);
- void SetForwardCallback (ForwardCallback callback);
- void SetAssociatedCallback (AssociatedCallback callback);
- void SetDisAssociatedCallback (DisAssociatedCallback callback);
- void SetPhy (Ptr<WifiPhy> phy);
- void SetStations (MacStations *stations);
-
- /**
- * \param missed the number of beacons which must be missed
- * before a new association sequence is started.
- */
- void SetMaxMissedBeacons (uint32_t missed);
- /**
- * \param timeout
- *
- * If no probe response is received within the specified
- * timeout, the station sends a new probe request.
- */
- void SetProbeRequestTimeout (Time timeout);
- /**
- * \param timeout
- *
- * If no association response is received within the specified
- * timeout, the station sends a new association request.
- */
- void SetAssocRequestTimeout (Time timeout);
-
- Mac48Address GetBssid (void) const;
-
- /**
- * Start an active association sequence immediately.
- */
- void StartActiveAssociation (void);
-
- void Queue (Ptr<const Packet> packet, Mac48Address to);
-
- void Receive (Ptr<Packet> packet, WifiMacHeader const *hdr);
-private:
- void SetBssid (Mac48Address bssid);
- Mac48Address GetBroadcastBssid (void);
- void SendProbeRequest (void);
- void SendAssociationRequest (void);
- void TryToEnsureAssociated (void);
- void AssocRequestTimeout (void);
- void ProbeRequestTimeout (void);
- bool IsAssociated (void);
- void MissedBeacons (void);
- void RestartBeaconWatchdog (Time delay);
- SupportedRates GetSupportedRates (void) const;
- enum {
- ASSOCIATED,
- WAIT_PROBE_RESP,
- WAIT_ASSOC_RESP,
- BEACON_MISSED,
- REFUSED
- } m_state;
- Time m_probeRequestTimeout;
- Time m_assocRequestTimeout;
- EventId m_probeRequestEvent;
- EventId m_assocRequestEvent;
- WifiNetDevice *m_device;
- ForwardCallback m_forward;
- AssociatedCallback m_associatedCallback;
- DisAssociatedCallback m_disAssociatedCallback;
- Ptr<DcaTxop> m_dca;
- EventId m_beaconWatchdog;
- Time m_beaconWatchdogEnd;
- Mac48Address m_bssid;
- uint32_t m_maxMissedBeacons;
- Ptr<WifiPhy> m_phy;
- MacStations *m_stations;
-};
-
-} // namespace ns3
-
-
-#endif /* MAC_HIGH_NQSTA_H */