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));
}
private static AddressFamily ConvertBsdAddressFamily(BsdAddressFamily family)
{
switch (family)
{
case BsdAddressFamily.Unspecified:
return(AddressFamily.Unspecified);
case BsdAddressFamily.InterNetwork:
return(AddressFamily.InterNetwork);
case BsdAddressFamily.InterNetworkV6:
return(AddressFamily.InterNetworkV6);
case BsdAddressFamily.Unknown:
return(AddressFamily.Unknown);
default:
throw new NotImplementedException(family.ToString());
}
}
