private ResultCode SocketInternal(ServiceCtx context, bool exempt)
{
BsdAddressFamily domain = (BsdAddressFamily)context.RequestData.ReadInt32();
BsdSocketType type = (BsdSocketType)context.RequestData.ReadInt32();
ProtocolType protocol = (ProtocolType)context.RequestData.ReadInt32();
BsdSocketCreationFlags creationFlags = (BsdSocketCreationFlags)((int)type >> (int)BsdSocketCreationFlags.FlagsShift);
type &= BsdSocketType.TypeMask;
if (domain == BsdAddressFamily.Unknown)
{
return(WriteBsdResult(context, -1, LinuxError.EPROTONOSUPPORT));
}
else if ((type == BsdSocketType.Seqpacket || type == BsdSocketType.Raw) && !_isPrivileged)
{
if (domain != BsdAddressFamily.InterNetwork || type != BsdSocketType.Raw || protocol != ProtocolType.Icmp)
{
return(WriteBsdResult(context, -1, LinuxError.ENOENT));
}
}
AddressFamily netDomain = ConvertBsdAddressFamily(domain);
if (protocol == ProtocolType.IP)
{
if (type == BsdSocketType.Stream)
{
protocol = ProtocolType.Tcp;
}
else if (type == BsdSocketType.Dgram)
{
protocol = ProtocolType.Udp;
}
}
ISocket newBsdSocket = new ManagedSocket(netDomain, (SocketType)type, protocol);
newBsdSocket.Blocking = !creationFlags.HasFlag(BsdSocketCreationFlags.NonBlocking);
LinuxError errno = LinuxError.SUCCESS;
int newSockFd = _context.RegisterFileDescriptor(newBsdSocket);
if (newSockFd == -1)
{
errno = LinuxError.EBADF;
}
if (exempt)
{
newBsdSocket.Disconnect();
}
return(WriteBsdResult(context, newSockFd, errno));
}
public LinuxError Poll(List <PollEvent> events, int timeoutMilliseconds, out int updatedCount)
{
List <Socket> readEvents = new List <Socket>();
List <Socket> writeEvents = new List <Socket>();
List <Socket> errorEvents = new List <Socket>();
updatedCount = 0;
foreach (PollEvent evnt in events)
{
ManagedSocket socket = (ManagedSocket)evnt.FileDescriptor;
bool isValidEvent = false;
if ((evnt.Data.InputEvents & PollEventTypeMask.Input) != 0)
{
readEvents.Add(socket.Socket);
errorEvents.Add(socket.Socket);
isValidEvent = true;
}
if ((evnt.Data.InputEvents & PollEventTypeMask.UrgentInput) != 0)
{
readEvents.Add(socket.Socket);
errorEvents.Add(socket.Socket);
isValidEvent = true;
}
if ((evnt.Data.InputEvents & PollEventTypeMask.Output) != 0)
{
writeEvents.Add(socket.Socket);
errorEvents.Add(socket.Socket);
isValidEvent = true;
}
if ((evnt.Data.InputEvents & PollEventTypeMask.Error) != 0)
{
errorEvents.Add(socket.Socket);
isValidEvent = true;
}
if (!isValidEvent)
{
Logger.Warning?.Print(LogClass.ServiceBsd, $"Unsupported Poll input event type: {evnt.Data.InputEvents}");
return(LinuxError.EINVAL);
}
}
try
{
int actualTimeoutMicroseconds = timeoutMilliseconds == -1 ? -1 : timeoutMilliseconds * 1000;
Socket.Select(readEvents, writeEvents, errorEvents, actualTimeoutMicroseconds);
}
catch (SocketException exception)
{
return(WinSockHelper.ConvertError((WsaError)exception.ErrorCode));
}
foreach (PollEvent evnt in events)
{
Socket socket = ((ManagedSocket)evnt.FileDescriptor).Socket;
PollEventTypeMask outputEvents = 0;
if (errorEvents.Contains(socket))
{
outputEvents |= PollEventTypeMask.Error;
if (!socket.Connected || !socket.IsBound)
{
outputEvents |= PollEventTypeMask.Disconnected;
}
}
if (readEvents.Contains(socket))
{
if ((evnt.Data.InputEvents & PollEventTypeMask.Input) != 0)
{
outputEvents |= PollEventTypeMask.Input;
}
}
if (writeEvents.Contains(socket))
{
outputEvents |= PollEventTypeMask.Output;
}
evnt.Data.OutputEvents = outputEvents;
}
updatedCount = readEvents.Count + writeEvents.Count + errorEvents.Count;
return(LinuxError.SUCCESS);
}