private static NtAlpcClient ConnectPort(string path, SecurityQualityOfService sqos)
{
AlpcReceiveMessageAttributes in_attr = new AlpcReceiveMessageAttributes();
return(NtAlpcClient.Connect(path, null,
CreatePortAttributes(sqos), AlpcMessageFlags.SyncRequest, null, null, null, in_attr, NtWaitTimeout.FromSeconds(5)));
}
/// <summary>
/// Method to create an object from a set of object attributes.
/// </summary>
/// <param name="obj_attributes">The object attributes to create/open from.</param>
/// <returns>The newly created object.</returns>
protected override object CreateObject(ObjectAttributes obj_attributes)
{
if (ParameterSetName == "SidCheck")
{
return(NtAlpcClient.Connect(Path, HandleObjectAttributes, PortAttributes, Flags, RequiredServerSid, ConnectionMessage,
OutMessageAttributes, InMessageAttributes, Timeout));
}
else
{
return(NtAlpcClient.Connect(obj_attributes, HandleObjectAttributes, PortAttributes, Flags, ServerSecurityRequirements,
ConnectionMessage, OutMessageAttributes, InMessageAttributes, Timeout));
}
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="path">The path to connect. The format depends on the transport.</param>
/// <param name="security_quality_of_service">The security quality of service for the connection.</param>
public RpcAlpcClientTransport(string path, SecurityQualityOfService security_quality_of_service)
{
if (string.IsNullOrEmpty(path))
{
throw new ArgumentException("Must specify a path to connect to");
}
if (!path.StartsWith(@"\"))
{
path = $@"\RPC Control\{path}";
}
_client = ConnectPort(path, security_quality_of_service);
Endpoint = path;
}
/// <summary>
/// Connect the client to an ALPC port.
/// </summary>
/// <param name="alpc_path">The path to the ALPC port.</param>
/// <param name="security_quality_of_service">The security quality of service for the port.</param>
public void Connect(string alpc_path, SecurityQualityOfService security_quality_of_service)
{
if (Connected)
{
throw new InvalidOperationException("RPC client is already connected.");
}
if (string.IsNullOrEmpty(alpc_path))
{
alpc_path = LookupEndpoint();
}
else if (!alpc_path.StartsWith(@"\"))
{
alpc_path = $@"\RPC Control\{alpc_path}";
}
AlpcPath = alpc_path;
_client = ConnectPort(alpc_path, security_quality_of_service);
CallId = 1;
BindInterface();
}
/// <summary>
/// Dispose of the client.
/// </summary>
public void Dispose()
{
_client?.Dispose();
_client = null;
}