/// <summary>
/// Initialize a RpceStubEncoder.
/// </summary>
/// <param name="runtimeTargetPlatform">Runtime platform, x86 or amd64.</param>
/// <param name="typeFormatString">Type format string generated by MIDL.</param>
/// <param name="exprEvalRoutines">ExprEvalRoutines generated by MIDL if exists.</param>
/// <exception cref="ArgumentNullException">
/// Thrown when typeFormatString is null.
/// </exception>
/// <exception cref="InvalidOperationException">
/// Thrown when runtimeTargetPlatform doesn't match current platform at runtime.
/// </exception>
public RpceStubEncoder(
RpceStubTargetPlatform runtimeTargetPlatform,
byte[] typeFormatString,
RpceStubExprEval[] exprEvalRoutines)
: base(runtimeTargetPlatform, typeFormatString, exprEvalRoutines)
{
int status;
IntPtr bindingString;
status = NativeMethods.RpcStringBindingCompose(
null,
"ncalrpc",
null,
localRpcEndpoint,
null,
out bindingString);
if (status != NativeMethods.RPC_S_OK)
{
throw new InvalidOperationException(
string.Format("RpcStringBindingCompose failed with error code {0}.", status));
}
status = NativeMethods.RpcBindingFromStringBinding(bindingString, out localRpcHandle);
if (status != NativeMethods.RPC_S_OK)
{
throw new InvalidOperationException(
string.Format("RpcBindingFromStringBinding failed with error code {0}.", status));
}
status = NativeMethods.RpcStringFree(ref bindingString);
if (status != NativeMethods.RPC_S_OK)
{
throw new InvalidOperationException(
string.Format("RpcStringFree failed with error code {0}.", status));
}
}
/// <summary>
/// constructor.
/// </summary>
/// <param name="runtimeTargetPlatform">Runtime platform, x86 or amd64.</param>
/// <param name="typeFormatString">Type format string generated by MIDL.</param>
/// <param name="exprEvalRoutines">ExprEvalRoutines generated by MIDL if exists.</param>
/// <exception cref="ArgumentNullException">
/// Thrown when typeFormatString is null.
/// </exception>
/// <exception cref="InvalidOperationException">
/// Thrown when runtimeTargetPlatform doesn't match current platform at runtime.
/// </exception>
protected RpceStub(
RpceStubTargetPlatform runtimeTargetPlatform,
byte[] typeFormatString,
RpceStubExprEval[] exprEvalRoutines)
{
if (typeFormatString == null)
{
throw new ArgumentNullException("typeFormatString");
}
if ((IntPtr.Size == sizeof(Int32) && (runtimeTargetPlatform & RpceStubTargetPlatform.X86) != RpceStubTargetPlatform.X86) ||
(IntPtr.Size == sizeof(Int64) && (runtimeTargetPlatform & RpceStubTargetPlatform.Amd64) != RpceStubTargetPlatform.Amd64))
{
throw new InvalidOperationException("Invalid target platform.");
}
allocatedMemoryList = new List<IntPtr>();
#region RPC_CLIENT_INTERFACE rpcClientInterface
NativeMethods.RPC_CLIENT_INTERFACE rpcClientInterface = new NativeMethods.RPC_CLIENT_INTERFACE();
rpcClientInterface.Length = (uint)Marshal.SizeOf(typeof(NativeMethods.RPC_CLIENT_INTERFACE));
rpcClientInterface.InterfaceId.SyntaxGUID = RpceStubEncoder.RPCE_BIND_ONLY_SERVER.IF_ID;
rpcClientInterface.InterfaceId.SyntaxVersion.MajorVersion = RpceStubEncoder.RPCE_BIND_ONLY_SERVER.IF_VERS_MAJOR;
rpcClientInterface.InterfaceId.SyntaxVersion.MinorVersion = RpceStubEncoder.RPCE_BIND_ONLY_SERVER.IF_VERS_MINOR;
rpcClientInterface.TransferSyntax.SyntaxGUID = RpceUtility.NDR_INTERFACE_UUID;
rpcClientInterface.TransferSyntax.SyntaxVersion.MajorVersion = RpceUtility.NDR_INTERFACE_MAJOR_VERSION;
rpcClientInterface.TransferSyntax.SyntaxVersion.MinorVersion = RpceUtility.NDR_INTERFACE_MINOR_VERSION;
rpcClientInterface.DispatchTable = IntPtr.Zero;
rpcClientInterface.RpcProtseqEndpointCount = 0;
rpcClientInterface.RpcProtseqEndpoint = IntPtr.Zero;
rpcClientInterface.Reserved = 0;
rpcClientInterface.InterpreterInfo = IntPtr.Zero;
rpcClientInterface.Flags = 0x00000000;
#endregion
#region MIDL_STUB_DESC stubDesc
stubDesc = new NativeMethods.MIDL_STUB_DESC();
stubDesc.RpcInterfaceInformation = Marshal.AllocHGlobal(Marshal.SizeOf(rpcClientInterface));
Marshal.StructureToPtr(rpcClientInterface, stubDesc.RpcInterfaceInformation, false);
stubDesc.pfnAllocate = new NativeMethods.PfnAllocate(MIDL_user_allocate);
stubDesc.pfnFree = new NativeMethods.PfnFree(MIDL_user_free);
stubDesc.apfnNdrRundownRoutines = IntPtr.Zero;
stubDesc.aGenericBindingRoutinePairs = IntPtr.Zero;
if (exprEvalRoutines == null || exprEvalRoutines.Length == 0)
{
stubDesc.apfnExprEval = IntPtr.Zero;
}
else
{
exprEvalList = new List<NativeMethods.EXPR_EVAL>(exprEvalRoutines.Length);
stubDesc.apfnExprEval = Marshal.AllocHGlobal(IntPtr.Size * exprEvalRoutines.Length);
for (int i = 0; i < exprEvalRoutines.Length; i++)
{
RpceStubExprEvalCallback callback = new RpceStubExprEvalCallback(this, exprEvalRoutines[i]);
NativeMethods.EXPR_EVAL exprEval = new NativeMethods.EXPR_EVAL(callback.EXPR_EVAL);
IntPtr funcPtr = Marshal.GetFunctionPointerForDelegate(exprEval);
Marshal.WriteIntPtr(stubDesc.apfnExprEval, IntPtr.Size * i, funcPtr);
//http://msdn.microsoft.com/en-us/library/system.runtime.interopservices.marshal.getfunctionpointerfordelegate.aspx
//Caller must manually keep the delegate from being collected by
// the garbage collector from managed code.
exprEvalList.Add(exprEval);
}
}
stubDesc.aXmitQuintuple = IntPtr.Zero;
stubDesc.pFormatTypes = Marshal.AllocHGlobal(typeFormatString.Length);
Marshal.Copy(typeFormatString, 0, stubDesc.pFormatTypes, typeFormatString.Length);
stubDesc.fCheckBounds = 0; /* -error bounds_check flag : "midl /error none" */
stubDesc.Version = 0x50000; /* Ndr library version */
stubDesc.pMallocFreeStruct = IntPtr.Zero;
stubDesc.MIDLVersion = 0x70001e6; /* MIDL Version 7.0.486 */
stubDesc.CommFaultOffsets = IntPtr.Zero;
stubDesc.aUserMarshalQuadruple = IntPtr.Zero;
stubDesc.NotifyRoutineTable = IntPtr.Zero; /* notify & notify_flag routine table */
stubDesc.mFlags = 0x1; /* MIDL flag */
stubDesc.CsRoutineTables = IntPtr.Zero; /* cs routines */
stubDesc.ProxyServerInfo = IntPtr.Zero; /* proxy/server native */
stubDesc.pExprInfo = IntPtr.Zero; /* Reserved5 */
#endregion
}
/// <summary>
/// Initialize a RpceStubExprEvalCallback.
/// </summary>
/// <param name="stub">RpceStub which contain the EXPR_EVAL.</param>
/// <param name="exprEvalRoutine">A EXPR_EVAL.</param>
internal RpceStubExprEvalCallback(RpceStub stub, RpceStubExprEval exprEvalRoutine)
{
RpceStub = stub;
exprEval = exprEvalRoutine;
}
/// <summary>
/// Encode parameter list to byte array in one method call.
/// </summary>
/// <param name="runtimeTargetPlatform">Runtime platform, x86 or amd64.</param>
/// <param name="typeFormatString">Type format string generated by MIDL.</param>
/// <param name="exprEvalRoutines">ExprEvalRoutines generated by MIDL if exists.</param>
/// <param name="procFormatString">Proc format string generated by MIDL.</param>
/// <param name="procFormatStringOffset">Offset of the procedure in procFormatString.</param>
/// <param name="isClient">Is client side.</param>
/// <param name="parameters">Parameters.</param>
/// <returns>The byte array contains encoded parameters.</returns>
/// <exception cref="ArgumentNullException">
/// Thrown when typeFormatString is null.
/// </exception>
/// <exception cref="InvalidOperationException">
/// Thrown when runtimeTargetPlatform doesn't match current platform at runtime.
/// </exception>
public static byte[] ToBytes(
RpceStubTargetPlatform runtimeTargetPlatform,
byte[] typeFormatString,
RpceStubExprEval[] exprEvalRoutines,
byte[] procFormatString,
int procFormatStringOffset,
bool isClient,
params Int3264[] parameters)
{
using (RpceStubEncoder encoder = new RpceStubEncoder(
runtimeTargetPlatform,
typeFormatString,
exprEvalRoutines))
{
encoder.NdrClientInitializeNew();
encoder.NdrParametersBufferSize(procFormatString, procFormatStringOffset, isClient, parameters);
encoder.NdrGetBuffer();
encoder.NdrParametersMarshall(procFormatString, procFormatStringOffset, isClient, parameters);
return encoder.ToBytes();
}
}
/// <summary>
/// Initialize a RpceStubExprEvalCallback.
/// </summary>
/// <param name="stub">RpceStub which contain the EXPR_EVAL.</param>
/// <param name="exprEvalRoutine">A EXPR_EVAL.</param>
internal RpceStubExprEvalCallback(RpceStub stub, RpceStubExprEval exprEvalRoutine)
{
RpceStub = stub;
exprEval = exprEvalRoutine;
}