public bool Open(string devicePath, out int lastError)
{
lastError = 0;
var cmdPkt = new AaruPacketCommandOpenDevice
{
hdr = new AaruPacketHeader
{
remote_id = Consts.RemoteId, packet_id = Consts.PacketId,
len = (uint)Marshal.SizeOf <AaruPacketCommandOpenDevice>(), version = Consts.PacketVersion,
packetType = AaruPacketType.CommandOpen
},
device_path = devicePath
};
byte[] buf = Marshal.StructureToByteArrayLittleEndian(cmdPkt);
int len = _socket.Send(buf, SocketFlags.None);
if (len != buf.Length)
{
AaruConsole.ErrorWriteLine("Could not write to the network...");
lastError = -1;
return(false);
}
byte[] hdrBuf = new byte[Marshal.SizeOf <AaruPacketHeader>()];
len = Receive(_socket, hdrBuf, hdrBuf.Length, SocketFlags.Peek);
if (len < hdrBuf.Length)
{
AaruConsole.ErrorWriteLine("Could not read from the network...");
lastError = -1;
return(false);
}
AaruPacketHeader hdr = Marshal.ByteArrayToStructureLittleEndian <AaruPacketHeader>(hdrBuf);
if (hdr.remote_id != Consts.RemoteId ||
hdr.packet_id != Consts.PacketId)
{
AaruConsole.ErrorWriteLine("Received data is not an Aaru Remote Packet...");
lastError = -1;
return(false);
}
if (hdr.packetType != AaruPacketType.Nop)
{
AaruConsole.ErrorWriteLine("Expected List Devices Response Packet, got packet type {0}...",
hdr.packetType);
lastError = -1;
return(false);
}
buf = new byte[hdr.len];
len = Receive(_socket, buf, buf.Length, SocketFlags.None);
if (len < buf.Length)
{
AaruConsole.ErrorWriteLine("Could not read from the network...");
lastError = -1;
return(false);
}
AaruPacketNop nop = Marshal.ByteArrayToStructureLittleEndian <AaruPacketNop>(buf);
switch (nop.reasonCode)
{
case AaruNopReason.OpenOk: return(true);
case AaruNopReason.NotImplemented: throw new NotImplementedException($"{nop.reason}");
}
AaruConsole.ErrorWriteLine($"{nop.reason}");
lastError = nop.errno;
return(false);
}
public Remote(string host)
{
_host = host;
IPHostEntry ipHostEntry = Dns.GetHostEntry(host);
IPAddress ipAddress =
ipHostEntry.AddressList.FirstOrDefault(a => a.AddressFamily == AddressFamily.InterNetwork);
if (ipAddress is null)
{
AaruConsole.ErrorWriteLine("Host not found");
throw new SocketException(11001);
}
var ipEndPoint = new IPEndPoint(ipAddress, 6666);
_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
_socket.Connect(ipEndPoint);
AaruConsole.WriteLine("Connected to {0}", host);
byte[] hdrBuf = new byte[Marshal.SizeOf <AaruPacketHeader>()];
int len = Receive(_socket, hdrBuf, hdrBuf.Length, SocketFlags.Peek);
if (len < hdrBuf.Length)
{
AaruConsole.ErrorWriteLine("Could not read from the network...");
throw new IOException();
}
AaruPacketHeader hdr = Marshal.ByteArrayToStructureLittleEndian <AaruPacketHeader>(hdrBuf);
if (hdr.remote_id != Consts.RemoteId ||
hdr.packet_id != Consts.PacketId)
{
AaruConsole.ErrorWriteLine("Received data is not an Aaru Remote Packet...");
throw new ArgumentException();
}
byte[] buf;
if (hdr.packetType != AaruPacketType.Hello)
{
if (hdr.packetType != AaruPacketType.Nop)
{
AaruConsole.ErrorWriteLine("Expected Hello Packet, got packet type {0}...", hdr.packetType);
throw new ArgumentException();
}
buf = new byte[hdr.len];
len = Receive(_socket, buf, buf.Length, SocketFlags.None);
if (len < buf.Length)
{
AaruConsole.ErrorWriteLine("Could not read from the network...");
throw new IOException();
}
AaruPacketNop nop = Marshal.ByteArrayToStructureLittleEndian <AaruPacketNop>(buf);
AaruConsole.ErrorWriteLine($"{nop.reason}");
throw new ArgumentException();
}
if (hdr.version != Consts.PacketVersion)
{
AaruConsole.ErrorWriteLine("Unrecognized packet version...");
throw new ArgumentException();
}
buf = new byte[hdr.len];
len = Receive(_socket, buf, buf.Length, SocketFlags.None);
if (len < buf.Length)
{
AaruConsole.ErrorWriteLine("Could not read from the network...");
throw new IOException();
}
AaruPacketHello serverHello = Marshal.ByteArrayToStructureLittleEndian <AaruPacketHello>(buf);
ServerApplication = serverHello.application;
ServerVersion = serverHello.version;
ServerOperatingSystem = serverHello.sysname;
ServerOperatingSystemVersion = serverHello.release;
ServerArchitecture = serverHello.machine;
ServerProtocolVersion = serverHello.maxProtocol;
var clientHello = new AaruPacketHello
{
application = "Aaru", version = Version.GetVersion(), maxProtocol = Consts.MaxProtocol,
sysname = DetectOS.GetPlatformName(DetectOS.GetRealPlatformID(), DetectOS.GetVersion()),
release = DetectOS.GetVersion(), machine = RuntimeInformation.ProcessArchitecture.ToString(), hdr =
new AaruPacketHeader
{
remote_id = Consts.RemoteId, packet_id = Consts.PacketId,
len = (uint)Marshal.SizeOf <AaruPacketHello>(), version = Consts.PacketVersion,
packetType = AaruPacketType.Hello
}
};
buf = Marshal.StructureToByteArrayLittleEndian(clientHello);
len = _socket.Send(buf, SocketFlags.None);
if (len >= buf.Length)
{
return;
}
AaruConsole.ErrorWriteLine("Could not write to the network...");
throw new IOException();
}
public DeviceInfo[] ListDevices()
{
var cmdPkt = new AaruPacketCommandListDevices
{
hdr = new AaruPacketHeader
{
remote_id = Consts.RemoteId, packet_id = Consts.PacketId,
len = (uint)Marshal.SizeOf <AaruPacketCommandListDevices>(), version = Consts.PacketVersion,
packetType = AaruPacketType.CommandListDevices
}
};
byte[] buf = Marshal.StructureToByteArrayLittleEndian(cmdPkt);
int len = _socket.Send(buf, SocketFlags.None);
if (len != buf.Length)
{
AaruConsole.ErrorWriteLine("Could not write to the network...");
return(new DeviceInfo[0]);
}
byte[] hdrBuf = new byte[Marshal.SizeOf <AaruPacketHeader>()];
len = Receive(_socket, hdrBuf, hdrBuf.Length, SocketFlags.Peek);
if (len < hdrBuf.Length)
{
AaruConsole.ErrorWriteLine("Could not read from the network...");
return(new DeviceInfo[0]);
}
AaruPacketHeader hdr = Marshal.ByteArrayToStructureLittleEndian <AaruPacketHeader>(hdrBuf);
if (hdr.remote_id != Consts.RemoteId ||
hdr.packet_id != Consts.PacketId)
{
AaruConsole.ErrorWriteLine("Received data is not an Aaru Remote Packet...");
return(new DeviceInfo[0]);
}
if (hdr.packetType != AaruPacketType.ResponseListDevices)
{
if (hdr.packetType != AaruPacketType.Nop)
{
AaruConsole.ErrorWriteLine("Expected List Devices Response Packet, got packet type {0}...",
hdr.packetType);
return(new DeviceInfo[0]);
}
buf = new byte[hdr.len];
len = Receive(_socket, buf, buf.Length, SocketFlags.None);
if (len < buf.Length)
{
AaruConsole.ErrorWriteLine("Could not read from the network...");
return(new DeviceInfo[0]);
}
AaruPacketNop nop = Marshal.ByteArrayToStructureLittleEndian <AaruPacketNop>(buf);
AaruConsole.ErrorWriteLine($"{nop.reason}");
return(new DeviceInfo[0]);
}
if (hdr.version != Consts.PacketVersion)
{
AaruConsole.ErrorWriteLine("Unrecognized packet version...");
return(new DeviceInfo[0]);
}
buf = new byte[hdr.len];
len = Receive(_socket, buf, buf.Length, SocketFlags.None);
if (len < buf.Length)
{
AaruConsole.ErrorWriteLine("Could not read from the network...");
return(new DeviceInfo[0]);
}
AaruPacketResponseListDevices response =
Marshal.ByteArrayToStructureLittleEndian <AaruPacketResponseListDevices>(buf);
List <DeviceInfo> devices = new List <DeviceInfo>();
int offset = Marshal.SizeOf <AaruPacketResponseListDevices>();
int devInfoLen = Marshal.SizeOf <DeviceInfo>();
for (ushort i = 0; i < response.devices; i++)
{
DeviceInfo dev = Marshal.ByteArrayToStructureLittleEndian <DeviceInfo>(buf, offset, devInfoLen);
dev.Path = dev.Path[0] == '/' ? $"aaru://{_host}{dev.Path}" : $"aaru://{_host}/{dev.Path}";
devices.Add(dev);
offset += devInfoLen;
}
return(devices.ToArray());
}