internal virtual void WriteRecord(byte type, byte[] plaintext, int plaintextOffset, int plaintextLength) { if (this.mWriteVersion == null) { return; } RecordStream.CheckType(type, 80); RecordStream.CheckLength(plaintextLength, this.mPlaintextLimit, 80); if (plaintextLength < 1 && type != 23) { throw new TlsFatalAlert(80); } if (type == 22) { this.UpdateHandshakeData(plaintext, plaintextOffset, plaintextLength); } Stream stream = this.mWriteCompression.Compress(this.mBuffer); byte[] array; if (stream == this.mBuffer) { TlsCipher arg_7B_0 = this.mWriteCipher; long seqNo; this.mWriteSeqNo = (seqNo = this.mWriteSeqNo) + 1L; array = arg_7B_0.EncodePlaintext(seqNo, type, plaintext, plaintextOffset, plaintextLength); } else { stream.Write(plaintext, plaintextOffset, plaintextLength); stream.Flush(); byte[] bufferContents = this.GetBufferContents(); RecordStream.CheckLength(bufferContents.Length, plaintextLength + 1024, 80); TlsCipher arg_CC_0 = this.mWriteCipher; long seqNo2; this.mWriteSeqNo = (seqNo2 = this.mWriteSeqNo) + 1L; array = arg_CC_0.EncodePlaintext(seqNo2, type, bufferContents, 0, bufferContents.Length); } RecordStream.CheckLength(array.Length, this.mCiphertextLimit, 80); byte[] array2 = new byte[array.Length + 5]; TlsUtilities.WriteUint8(type, array2, 0); TlsUtilities.WriteVersion(this.mWriteVersion, array2, 1); TlsUtilities.WriteUint16(array.Length, array2, 3); Array.Copy(array, 0, array2, 5, array.Length); this.mOutput.Write(array2, 0, array2.Length); this.mOutput.Flush(); }
internal virtual bool ReadRecord() { byte[] array = TlsUtilities.ReadAllOrNothing(5, this.mInput); if (array == null) { return(false); } byte b = TlsUtilities.ReadUint8(array, 0); RecordStream.CheckType(b, 10); if (!this.mRestrictReadVersion) { int num = TlsUtilities.ReadVersionRaw(array, 1); if (((long)num & (long)((ulong)-256)) != 768L) { throw new TlsFatalAlert(47); } } else { ProtocolVersion protocolVersion = TlsUtilities.ReadVersion(array, 1); if (this.mReadVersion == null) { this.mReadVersion = protocolVersion; } else if (!protocolVersion.Equals(this.mReadVersion)) { throw new TlsFatalAlert(47); } } int len = TlsUtilities.ReadUint16(array, 3); byte[] array2 = this.DecodeAndVerify(b, this.mInput, len); this.mHandler.ProcessRecord(b, array2, 0, array2.Length); return(true); }