public void DataRequest(
MacAddressingMode srcAddrMode,
MacAddress dstAddr,
UInt16 dstPanId,
ref Frame msdu,
Byte msduHandle,
TxOptions options,
SecurityOptions securityOptions,
DataConfirmHandler handler)
{
TaskDataRequest task = new TaskDataRequest(
srcAddrMode,
dstAddr,
dstPanId,
msdu,
msduHandle,
options,
securityOptions,
handler);
if (!_taskQueue.Add(task))
{
Frame.Release(ref msdu);
if (handler != null)
{
handler.Invoke(this, msduHandle, MacEnum.Congested);
}
}
msdu = null; // in any case, remove frame ownership from caller
}
private void DataRequest(TaskDataRequest task)
{
if (task == null)
return;
MacEnum result = MacEnum.Success;
bool is2006 = false;
// check frame
if (task.msdu == null || task.msdu.LengthDataUsed == 0)
{
result = MacEnum.InvalidParameter;
}
else if (task.msdu.LengthDataUsed > State.aMaxMACSafePayloadSize)
{
if (_state.phySupports2006)
{
is2006 = true;
}
else
{
result = MacEnum.FrameTooLong;
}
}
if (result == MacEnum.Success)
{
// data request is a value type, cannot be null
Header hdr = new Header();
hdr.fcs.Type = Frames.Type.Data;
if (is2006)
hdr.fcs.Version = Frames.Version.IEEE2006;
else
hdr.fcs.Version = Frames.Version.IEEE2003;
if (task.options.AcknowledgedTransmission)
hdr.fcs.Ack = true;
// FIXME: security
lock (_state)
{
hdr.seqNo = _state.macDSN++;
// dst address
hdr.dstPanId = task.dstPANId;
switch (task.dstAddr.Mode)
{
case MacAddressingMode.NoAddress:
hdr.fcs.DstAddrMode = AddressingMode.None;
break;
case MacAddressingMode.ShortAddress:
hdr.fcs.DstAddrMode = AddressingMode.Short;
hdr.dstAddrShort = task.dstAddr.ShortAddress;
break;
case MacAddressingMode.ExtendedAddress:
hdr.fcs.DstAddrMode = AddressingMode.Extended;
hdr.dstAddrExt = task.dstAddr.ExtendedAddress;
break;
}
// src addr
if (_state.macPanId == task.dstPANId)
{
hdr.fcs.PanIdCompression = true;
}
else
{
hdr.srcPanId = _state.macPanId;
}
switch (task.srcAddrMode)
{
case MacAddressingMode.NoAddress:
hdr.fcs.SrcAddrMode = AddressingMode.None;
break;
case MacAddressingMode.ShortAddress:
hdr.fcs.SrcAddrMode = AddressingMode.Short;
hdr.srcAddrShort = _state.macShortAddr;
break;
case MacAddressingMode.ExtendedAddress:
hdr.fcs.SrcAddrMode = AddressingMode.Extended;
hdr.srcAddrExt = _state.aExtendedAddress;
break;
}
}
// encode
result = MacEnum.Congested;
if (hdr.WriteToFrameHeader(task.msdu))
{
if (task.msdu.LengthDataUsed > State.aMaxPhyPacketSize)
{
result = MacEnum.FrameTooLong;
}
else
{
result = _sendReceive.SendFrame(ref task.msdu, task.options.AcknowledgedTransmission, hdr.seqNo);
}
}
else
{
Trace.Print("Mac: DataRequest: cannot add Mac header");
}
}
Frame.Release(ref task.msdu);
if (task.handler != null)
{
task.handler.Invoke(this, task.msduHandle, result);
}
}
public void DataRequest(
MacAddressingMode srcAddrMode,
MacAddress dstAddr,
UInt16 dstPanId,
ref Frame msdu,
Byte msduHandle,
TxOptions options,
SecurityOptions securityOptions,
DataConfirmHandler handler)
{
TaskDataRequest task = new TaskDataRequest(
srcAddrMode,
dstAddr,
dstPanId,
msdu,
msduHandle,
options,
securityOptions,
handler);
if (!_taskQueue.Add(task))
{
Frame.Release(ref msdu);
if (handler != null)
handler.Invoke(this, msduHandle, MacEnum.Congested);
}
msdu = null; // in any case, remove frame ownership from caller
}
private void DataRequest(TaskDataRequest task)
{
if (task == null)
{
return;
}
MacEnum result = MacEnum.Success;
bool is2006 = false;
// check frame
if (task.msdu == null || task.msdu.LengthDataUsed == 0)
{
result = MacEnum.InvalidParameter;
}
else if (task.msdu.LengthDataUsed > State.aMaxMACSafePayloadSize)
{
if (_state.phySupports2006)
{
is2006 = true;
}
else
{
result = MacEnum.FrameTooLong;
}
}
if (result == MacEnum.Success)
{
// data request is a value type, cannot be null
Header hdr = new Header();
hdr.fcs.Type = Frames.Type.Data;
if (is2006)
{
hdr.fcs.Version = Frames.Version.IEEE2006;
}
else
{
hdr.fcs.Version = Frames.Version.IEEE2003;
}
if (task.options.AcknowledgedTransmission)
{
hdr.fcs.Ack = true;
}
// FIXME: security
lock (_state)
{
hdr.seqNo = _state.macDSN++;
// dst address
hdr.dstPanId = task.dstPANId;
switch (task.dstAddr.Mode)
{
case MacAddressingMode.NoAddress:
hdr.fcs.DstAddrMode = AddressingMode.None;
break;
case MacAddressingMode.ShortAddress:
hdr.fcs.DstAddrMode = AddressingMode.Short;
hdr.dstAddrShort = task.dstAddr.ShortAddress;
break;
case MacAddressingMode.ExtendedAddress:
hdr.fcs.DstAddrMode = AddressingMode.Extended;
hdr.dstAddrExt = task.dstAddr.ExtendedAddress;
break;
}
// src addr
if (_state.macPanId == task.dstPANId)
{
hdr.fcs.PanIdCompression = true;
}
else
{
hdr.srcPanId = _state.macPanId;
}
switch (task.srcAddrMode)
{
case MacAddressingMode.NoAddress:
hdr.fcs.SrcAddrMode = AddressingMode.None;
break;
case MacAddressingMode.ShortAddress:
hdr.fcs.SrcAddrMode = AddressingMode.Short;
hdr.srcAddrShort = _state.macShortAddr;
break;
case MacAddressingMode.ExtendedAddress:
hdr.fcs.SrcAddrMode = AddressingMode.Extended;
hdr.srcAddrExt = _state.aExtendedAddress;
break;
}
}
// encode
result = MacEnum.Congested;
if (hdr.WriteToFrameHeader(task.msdu))
{
if (task.msdu.LengthDataUsed > State.aMaxPhyPacketSize)
{
result = MacEnum.FrameTooLong;
}
else
{
result = _sendReceive.SendFrame(ref task.msdu, task.options.AcknowledgedTransmission, hdr.seqNo);
}
}
else
{
Trace.Print("Mac: DataRequest: cannot add Mac header");
}
}
Frame.Release(ref task.msdu);
if (task.handler != null)
{
task.handler.Invoke(this, task.msduHandle, result);
}
}