/// <summary>
/// Append verification_trailer to stub.
/// </summary>
/// <param name="verificationTrailer">verification_trailer</param>
/// <exception cref="ArgumentNullException">Thrown when verificationTrailer is null.</exception>
public void AppendVerificationTrailerToStub(verification_trailer_t verificationTrailer)
{
if (verificationTrailer == null)
{
throw new ArgumentNullException("verificationTrailer");
}
if (stub == null)
{
stub = new byte[0];
}
stub = RpceUtility.AppendVerificationTrailerToStub(stub, verificationTrailer);
if (auth_verifier != null)
{
auth_verifier_co_t authVerifier = auth_verifier.Value;
authVerifier.auth_pad_length = (byte)(
RpceUtility.Align(stub.Length, RpceUtility.STUB_PAD_LENGTH) - stub.Length);
authVerifier.auth_pad = new byte[authVerifier.auth_pad_length];
auth_verifier = authVerifier;
}
SetLength();
}
/// <summary>
/// Append verification_trailer to stub.
/// </summary>
/// <param name="stub">The stub.</param>
/// <param name="verificationTrailer">verification_trailer</param>
/// <returns>The stub with verification_trailer.</returns>
/// <exception cref="ArgumentNullException">Thrown when stub or verificationTrailer is null.</exception>
public static byte[] AppendVerificationTrailerToStub(byte[] stub, verification_trailer_t verificationTrailer)
{
if (stub == null)
{
throw new ArgumentNullException("stub");
}
if (verificationTrailer == null)
{
throw new ArgumentNullException("verificationTrailer");
}
//The beginning of the header MUST be 4-byte aligned with respect to the beginning of the PDU.
int padLength = RpceUtility.Align(stub.Length, 4) - stub.Length;
verificationTrailer.pad = new byte[padLength];
byte[] verificationTrailerBytes = verificationTrailer.ToBytes();
return(ArrayUtility.ConcatenateArrays(stub, verificationTrailerBytes));
}
/// <summary>
/// Send request to RPCE server.
/// </summary>
/// <param name="opnum">
/// The opnum of a method.
/// </param>
/// <param name="requestStub">
/// A byte array of the request stub of a method.<para/>
/// RpceStubEncoder can be used to NDR marshal parameters to a byte array.
/// </param>
/// <param name="callId">
/// The identifier of this call.
/// </param>
/// <exception cref="ArgumentNullException">
/// Thrown when requestStub is null.
/// </exception>
/// <exception cref="InvalidOperationException">
/// Thrown when receive error from server or RPC connection has not been established.
/// </exception>
/// <exception cref="InvalidOperationException">
/// Thrown when this transport has been used as an synchronous transport.
/// </exception>
public virtual void SendRequest(
ushort opnum,
byte[] requestStub,
out uint callId)
{
if (requestStub == null)
{
throw new ArgumentNullException("requestStub");
}
if (rpceClient.IsDisposed)
{
throw new InvalidOperationException("RPC connection has not been established.");
}
RpceCoRequestPdu requestPdu = rpceClient.CreateCoRequestPdu(
opnum,
requestStub);
if (rpceClient.Context.AuthenticationType == RpceAuthenticationType.RPC_C_AUTHN_WINNT &&
rpceClient.Context.AuthenticationLevel == RpceAuthenticationLevel.RPC_C_AUTHN_LEVEL_PKT_INTEGRITY)
{
verification_trailer_t verificationTrailer = requestPdu.CreateVerificationTrailer(
SEC_VT_COMMAND.SEC_VT_COMMAND_BITMASK_1,
SEC_VT_COMMAND.SEC_VT_COMMAND_HEADER2,
SEC_VT_COMMAND.SEC_VT_COMMAND_PCONTEXT | SEC_VT_COMMAND.SEC_VT_COMMAND_END);
requestPdu.AppendVerificationTrailerToStub(verificationTrailer);
}
FragmentAndSendPdu(requestPdu);
lock (responseLock)
{
callId = requestPdu.call_id;
outstandingCallIds.Add(callId);
}
}
/// <summary>
/// Extract verification_trailer from stub.
/// </summary>
/// <param name="stub">The stub.</param>
/// <param name="startIndex">
/// Input: The position of the end of stub (the beginning position to search for verification_trailer).
/// Output: The start position of verification_trailer.
/// </param>
/// <returns>Returns verification_trailer if found; otherwise, returns null.</returns>
/// <exception cref="ArgumentNullException">Thrown when stub is null.</exception>
public static verification_trailer_t ExtractVerificationTrailerFromStub(byte[] stub, ref int startIndex)
{
if (stub == null)
{
throw new ArgumentNullException("stub");
}
//The beginning of the header MUST be 4-byte aligned with respect to the beginning of the PDU.
for (int i = RpceUtility.Align(startIndex, 4); i < stub.Length; i += 4)
{
if ((stub.Length - i) >= Marshal.SizeOf(verification_trailer_t.SIGNATURE) &&
BitConverter.ToUInt64(stub, i) == verification_trailer_t.SIGNATURE)
{
//found verification_trailer
byte[] verificationTrailerBuffer = ArrayUtility.SubArray(stub, i);
verification_trailer_t verificationTrailer = new verification_trailer_t();
verificationTrailer.FromBytes(verificationTrailerBuffer);
startIndex = i;
return(verificationTrailer);
}
}
return(null);
}
/// <summary>
/// Create an verification trailer with commands parameter passed in to the method.
/// </summary>
/// <param name="commands">
/// A list of commands to be contained in the verification trailer.<para/>
/// Flag SEC_VT_COMMAND_END is ignored by input, and will be added to
/// the last command automatically.
/// </param>
/// <returns>
/// Created verification trailer. Pad is not added until appending to stub.
/// </returns>
/// <exception cref="ArgumentNullException">
/// Thrown when commands is null.
/// </exception>
/// <exception cref="InvalidOperationException">
/// Thrown when a SEC_VT_COMMAND is invalid, or NDR/NDR64 was not negotiated.
/// </exception>
public verification_trailer_t CreateVerificationTrailer(
params SEC_VT_COMMAND[] commands)
{
if (commands == null)
{
throw new ArgumentNullException("commands");
}
verification_trailer_t verificationTrailer = new verification_trailer_t();
verificationTrailer.header = new rpc_sec_verification_trailer();
verificationTrailer.header.signature = BitConverter.GetBytes(verification_trailer_t.SIGNATURE);
List <SEC_VT> secVtList = new List <SEC_VT>();
for (int i = 0; i < commands.Length; i++)
{
switch (commands[i]
& ~(SEC_VT_COMMAND.SEC_VT_COMMAND_END | SEC_VT_COMMAND.SEC_VT_MUST_PROCESS_COMMAND))
{
case SEC_VT_COMMAND.SEC_VT_COMMAND_BITMASK_1:
rpc_sec_vt_bitmask secVtBitmask = new rpc_sec_vt_bitmask();
secVtBitmask.command = commands[i];
//length: MUST be 0x0004.
secVtBitmask.length = verification_trailer_t.SEC_VT_BITMASK_LENGTH;
//bits: The bits field is a bitmask.
//A server MUST ignore bits it does not understand.
//Currently, there is only one bit defined: CLIENT_SUPPORT_HEADER_SIGNING
//(bitmask of 0x00000001). If this bit is set, the PFC_SUPPORT_HEADER_SIGN
//bit, as specified in section 2.2.2.3, MUST be present in the PDU header
//for the bind PDU on this connection.
secVtBitmask.bits = context.SupportsHeaderSign ? (uint)0x00000001 : 0;
secVtList.Add(secVtBitmask);
break;
case SEC_VT_COMMAND.SEC_VT_COMMAND_HEADER2:
rpc_sec_vt_header2 secVtHeader2 = new rpc_sec_vt_header2();
secVtHeader2.command = commands[i];
//length: MUST be 0x0010.
secVtHeader2.length = verification_trailer_t.SEC_VT_HEADER2_LENGTH;
//PTYPE: MUST be the same as the PTYPE field in the request PDU header.
secVtHeader2.PTYPE = PTYPE;
secVtHeader2.reserved1 = 0;
secVtHeader2.reserved2 = 0;
secVtHeader2.drep = packed_drep;
secVtHeader2.call_id = call_id;
secVtHeader2.p_cont_id = p_cont_id;
secVtHeader2.opnum = opnum;
secVtList.Add(secVtHeader2);
break;
case SEC_VT_COMMAND.SEC_VT_COMMAND_PCONTEXT:
rpc_sec_vt_pcontext secVtPcontext = new rpc_sec_vt_pcontext();
secVtPcontext.command = commands[i];
//length: MUST be set to 0x28.
secVtPcontext.length = verification_trailer_t.SEC_VT_PCONTEXT_LENGTH;
secVtPcontext.interfaceId = new p_syntax_id_t();
secVtPcontext.interfaceId.if_uuid = context.InterfaceId;
secVtPcontext.interfaceId.if_vers_major = context.InterfaceMajorVersion;
secVtPcontext.interfaceId.if_vers_minor = context.InterfaceMinorVersion;
secVtPcontext.transferSyntax = new p_syntax_id_t();
if (context.NdrVersion == RpceNdrVersion.NDR)
{
secVtPcontext.transferSyntax.if_uuid = RpceUtility.NDR_INTERFACE_UUID;
secVtPcontext.transferSyntax.if_vers_major = RpceUtility.NDR_INTERFACE_MAJOR_VERSION;
secVtPcontext.transferSyntax.if_vers_minor = RpceUtility.NDR_INTERFACE_MINOR_VERSION;
}
else if (context.NdrVersion == RpceNdrVersion.NDR64)
{
secVtPcontext.transferSyntax.if_uuid = RpceUtility.NDR64_INTERFACE_UUID;
secVtPcontext.transferSyntax.if_vers_major = RpceUtility.NDR64_INTERFACE_MAJOR_VERSION;
secVtPcontext.transferSyntax.if_vers_minor = RpceUtility.NDR64_INTERFACE_MINOR_VERSION;
}
else
{
throw new InvalidOperationException("Neither NDR nore NDR64 was negotiated.");
}
secVtList.Add(secVtPcontext);
break;
default:
throw new InvalidOperationException("Invalid SEC_VT_COMMAND.");
}
}
verificationTrailer.commands = secVtList.ToArray();
return(verificationTrailer);
}
/// <summary>
/// Append verification_trailer to stub.
/// </summary>
/// <param name="verificationTrailer">verification_trailer</param>
/// <exception cref="ArgumentNullException">Thrown when verificationTrailer is null.</exception>
public void AppendVerificationTrailerToStub(verification_trailer_t verificationTrailer)
{
if (verificationTrailer == null)
{
throw new ArgumentNullException("verificationTrailer");
}
if (stub == null)
{
stub = new byte[0];
}
stub = RpceUtility.AppendVerificationTrailerToStub(stub, verificationTrailer);
if (auth_verifier != null)
{
auth_verifier_co_t authVerifier = auth_verifier.Value;
authVerifier.auth_pad_length = (byte)(
RpceUtility.Align(stub.Length, RpceUtility.STUB_PAD_LENGTH) - stub.Length);
authVerifier.auth_pad = new byte[authVerifier.auth_pad_length];
auth_verifier = authVerifier;
}
SetLength();
}
/// <summary>
/// Create an verification trailer with commands parameter passed in to the method.
/// </summary>
/// <param name="commands">
/// A list of commands to be contained in the verification trailer.<para/>
/// Flag SEC_VT_COMMAND_END is ignored by input, and will be added to
/// the last command automatically.
/// </param>
/// <returns>
/// Created verification trailer. Pad is not added until appending to stub.
/// </returns>
/// <exception cref="ArgumentNullException">
/// Thrown when commands is null.
/// </exception>
/// <exception cref="InvalidOperationException">
/// Thrown when a SEC_VT_COMMAND is invalid, or NDR/NDR64 was not negotiated.
/// </exception>
public verification_trailer_t CreateVerificationTrailer(
params SEC_VT_COMMAND[] commands)
{
if (commands == null)
{
throw new ArgumentNullException("commands");
}
verification_trailer_t verificationTrailer = new verification_trailer_t();
verificationTrailer.header = new rpc_sec_verification_trailer();
verificationTrailer.header.signature = BitConverter.GetBytes(verification_trailer_t.SIGNATURE);
List<SEC_VT> secVtList = new List<SEC_VT>();
for (int i = 0; i < commands.Length; i++)
{
switch (commands[i]
& ~(SEC_VT_COMMAND.SEC_VT_COMMAND_END | SEC_VT_COMMAND.SEC_VT_MUST_PROCESS_COMMAND))
{
case SEC_VT_COMMAND.SEC_VT_COMMAND_BITMASK_1:
rpc_sec_vt_bitmask secVtBitmask = new rpc_sec_vt_bitmask();
secVtBitmask.command = commands[i];
//length: MUST be 0x0004.
secVtBitmask.length = verification_trailer_t.SEC_VT_BITMASK_LENGTH;
//bits: The bits field is a bitmask.
//A server MUST ignore bits it does not understand.
//Currently, there is only one bit defined: CLIENT_SUPPORT_HEADER_SIGNING
//(bitmask of 0x00000001). If this bit is set, the PFC_SUPPORT_HEADER_SIGN
//bit, as specified in section 2.2.2.3, MUST be present in the PDU header
//for the bind PDU on this connection.
secVtBitmask.bits = context.SupportsHeaderSign ? (uint)0x00000001 : 0;
secVtList.Add(secVtBitmask);
break;
case SEC_VT_COMMAND.SEC_VT_COMMAND_HEADER2:
rpc_sec_vt_header2 secVtHeader2 = new rpc_sec_vt_header2();
secVtHeader2.command = commands[i];
//length: MUST be 0x0010.
secVtHeader2.length = verification_trailer_t.SEC_VT_HEADER2_LENGTH;
//PTYPE: MUST be the same as the PTYPE field in the request PDU header.
secVtHeader2.PTYPE = PTYPE;
secVtHeader2.reserved1 = 0;
secVtHeader2.reserved2 = 0;
secVtHeader2.drep = packed_drep;
secVtHeader2.call_id = call_id;
secVtHeader2.p_cont_id = p_cont_id;
secVtHeader2.opnum = opnum;
secVtList.Add(secVtHeader2);
break;
case SEC_VT_COMMAND.SEC_VT_COMMAND_PCONTEXT:
rpc_sec_vt_pcontext secVtPcontext = new rpc_sec_vt_pcontext();
secVtPcontext.command = commands[i];
//length: MUST be set to 0x28.
secVtPcontext.length = verification_trailer_t.SEC_VT_PCONTEXT_LENGTH;
secVtPcontext.interfaceId = new p_syntax_id_t();
secVtPcontext.interfaceId.if_uuid = context.InterfaceId;
secVtPcontext.interfaceId.if_vers_major = context.InterfaceMajorVersion;
secVtPcontext.interfaceId.if_vers_minor = context.InterfaceMinorVersion;
secVtPcontext.transferSyntax = new p_syntax_id_t();
if (context.NdrVersion == RpceNdrVersion.NDR)
{
secVtPcontext.transferSyntax.if_uuid = RpceUtility.NDR_INTERFACE_UUID;
secVtPcontext.transferSyntax.if_vers_major = RpceUtility.NDR_INTERFACE_MAJOR_VERSION;
secVtPcontext.transferSyntax.if_vers_minor = RpceUtility.NDR_INTERFACE_MINOR_VERSION;
}
else if (context.NdrVersion == RpceNdrVersion.NDR64)
{
secVtPcontext.transferSyntax.if_uuid = RpceUtility.NDR64_INTERFACE_UUID;
secVtPcontext.transferSyntax.if_vers_major = RpceUtility.NDR64_INTERFACE_MAJOR_VERSION;
secVtPcontext.transferSyntax.if_vers_minor = RpceUtility.NDR64_INTERFACE_MINOR_VERSION;
}
else
{
throw new InvalidOperationException("Neither NDR nore NDR64 was negotiated.");
}
secVtList.Add(secVtPcontext);
break;
default:
throw new InvalidOperationException("Invalid SEC_VT_COMMAND.");
}
}
verificationTrailer.commands = secVtList.ToArray();
return verificationTrailer;
}
