public OfpFlowStats(Stream stream)
{
BeBinaryReader br = new BeBinaryReader(stream, Encoding.ASCII, true);
br.Parse(out Length);
br.Parse(out TableId);
br.ReadBytes(1);
Match = new OfpMatch(stream);
br.Parse(out DurationSec);
br.Parse(out DurationNsec);
br.Parse(out Priority);
br.Parse(out IdleTimeout);
br.Parse(out HardTimeout);
br.ReadBytes(6);
br.Parse(out Cookie);
br.Parse(out PacketCount);
br.Parse(out ByteCount);
IOfpAction action = OfpActionHeader.ParseAction(stream);
while (action != null)
{
Actions[action.Header.Type] = action;
action = OfpActionHeader.ParseAction(stream);
}
}
public OfpPacketOut(Stream stream, OfpHeader header = null)
{
BeBinaryReader br = new BeBinaryReader(stream, Encoding.ASCII, true);
Header = header ?? new OfpHeader(stream);
br.Parse(out BufferId);
br.Parse(out InPort);
br.Parse(out ActionsLen);
int length = ActionsLen;
while (length >= 8)
{
var action = OfpActionHeader.ParseAction(stream);
Actions[action.Header.Type] = action;
length -= action.Header.Len;
}
if (BufferId == uint.MaxValue) //-1
{
length = Header.Length - (int)Size - ActionsLen;
if (length > 0)
{
br.Parse(out Data, length);
}
}
}
public OfpFlowMod(Stream stream, OfpHeader header = null)
{
BeBinaryReader br = new BeBinaryReader(stream, Encoding.ASCII, true);
Header = header ?? new OfpHeader(stream);
//var pos = stream.Position;
Match = new OfpMatch(stream);
//pos = stream.Position;
br.Parse(out Cookie);
br.Parse(out Command);
br.Parse(out IdleTimeout);
br.Parse(out HardTimeout);
br.Parse(out Priority);
br.Parse(out BufferId);
br.Parse(out OutPort); //FIXED:
br.Parse(out Flags);
//pos = stream.Position;
IOfpAction action = OfpActionHeader.ParseAction(stream);
while (action != null)
{
Actions[action.Header.Type] = action;
action = OfpActionHeader.ParseAction(stream);
}
}
public OfpActionNwAddr(Stream stream)
{
BeBinaryReader br = new BeBinaryReader(stream, Encoding.ASCII, true);
Header = new OfpActionHeader(stream);
br.Parse(out NwAddr);
}
public OfpActionVendorHeader(Stream stream)
{
BeBinaryReader br = new BeBinaryReader(stream, Encoding.ASCII, true);
Header = new OfpActionHeader(stream);
br.Parse(out Vendor);
br.Parse(out Content, Header.Len);
}
public OfpActionTpPort(Stream stream)
{
BeBinaryReader br = new BeBinaryReader(stream, Encoding.ASCII, true);
Header = new OfpActionHeader(stream);
br.Parse(out TpPort);
br.ReadBytes(2); //PAD 2
}
public OfpActionNwTos(Stream stream)
{
BeBinaryReader br = new BeBinaryReader(stream, Encoding.ASCII, true);
Header = new OfpActionHeader(stream);
br.Parse(out NwTos);
br.ReadBytes(3);
}
public OfpActionDlAddr(Stream stream)
{
BeBinaryReader br = new BeBinaryReader(stream, Encoding.ASCII, true);
Header = new OfpActionHeader(stream);
br.Parse(out DlAddr, OFP_MAX_ETH_ALEN);
br.ReadBytes(6);
}
public OfpActionOutput(Stream stream)
{
BeBinaryReader br = new BeBinaryReader(stream, Encoding.ASCII, true);
Header = new OfpActionHeader(stream);
br.Parse(out Port);
br.Parse(out MaxLen);
}
public OfpActionEnqueue(Stream stream)
{
BeBinaryReader br = new BeBinaryReader(stream, Encoding.ASCII, true);
Header = new OfpActionHeader(stream);
br.Parse(out Port);
br.ReadBytes(6); //PAD 6
br.Parse(out QueueId);
}
/// <summary>
/// 通过头解析一个动作
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public static IOfpAction ParseAction(Stream stream)
{
if (stream.Length - stream.Position >= 8)
{
var pos = stream.Position;
OfpActionHeader header = new OfpActionHeader(stream);
stream.Seek(pos, SeekOrigin.Begin);
switch (header.Type)
{
case OfpActionType.OFPAT_OUTPUT:
return(new OfpActionOutput(stream));
case OfpActionType.OFPAT_SET_VLAN_VID:
return(new OfpActionVlanVid(stream));
case OfpActionType.OFPAT_SET_VLAN_PCP:
return(new OfpActionVlanPcp(stream));
case OfpActionType.OFPAT_STRIP_VLAN:
return(new OfpActionStripVlan(stream));
case OfpActionType.OFPAT_SET_DL_SRC:
return(new OfpActionDlAddr(stream));
case OfpActionType.OFPAT_SET_DL_DST:
return(new OfpActionDlAddr(stream));
case OfpActionType.OFPAT_SET_NW_SRC:
return(new OfpActionNwAddr(stream));
case OfpActionType.OFPAT_SET_NW_DST:
return(new OfpActionNwAddr(stream));
case OfpActionType.OFPAT_SET_NW_TOS:
return(new OfpActionNwTos(stream));
case OfpActionType.OFPAT_SET_TP_SRC:
return(new OfpActionTpPort(stream));
case OfpActionType.OFPAT_SET_TP_DST:
return(new OfpActionTpPort(stream));
case OfpActionType.OFPAT_ENQUEUE:
return(new OfpActionEnqueue(stream));
case OfpActionType.OFPAT_VENDOR:
return(new OfpActionVendorHeader(stream));
default:
return(null);
//throw new FormatException("Can not parse header");
}
}
return(null);
}
public OfpActionStripVlan(Stream stream)
{
Header = new OfpActionHeader(stream, 4);
}
