buf.enc_ndr_long(0); /* assoc. group */
        buf.enc_ndr_small(1); /* num context items */
        buf.enc_ndr_small(0); /* reserved */
        buf.enc_ndr_short(0); /* reserved2 */
        buf.enc_ndr_short(0); /* context id */
        buf.enc_ndr_small(1); /* number of items */
        buf.enc_ndr_small(0); /* reserved */
        this.binding.getUuid().encode(buf);
        buf.enc_ndr_short(this.binding.getMajor());

        buf.enc_ndr_long(0); /* assoc. group */
        buf.enc_ndr_small(1); /* num context items */
        buf.enc_ndr_small(0); /* reserved */
        buf.enc_ndr_short(0); /* reserved2 */
        buf.enc_ndr_short(0); /* context id */
        buf.enc_ndr_small(1); /* number of items */
        buf.enc_ndr_small(0); /* reserved */
        binding.uuid.encode(buf);
        buf.enc_ndr_short(binding.major);
        buf.enc_ndr_short(binding.minor);

        @Test
        @DisplayName("Should correctly parse reserved fields")
        void testReservedFieldsAreSkipped() throws Exception {
            byte[] buffer = new byte[64];

            // Structure with specific values in reserved fields
            SMBUtil.writeInt2(24, buffer, 0);
            buffer[2] = 0x01; // Oplock level
            buffer[3] = (byte) 0xAA; // Reserved byte

        buffer[bodyStart + 2] = (byte) dataOffsetFromHeader;
        // Reserved
        buffer[bodyStart + 3] = 0;
        // Data length
        SMBUtil.writeInt4(dataLength, buffer, bodyStart + 4);
        // Data remaining
        SMBUtil.writeInt4(dataRemaining, buffer, bodyStart + 8);
        // Reserved2
        SMBUtil.writeInt4(0, buffer, bodyStart + 12);

        ci += 4;
        SMBUtil.writeInt2(0x10, ctx, ci); // NameOffset
        SMBUtil.writeInt2(4, ctx, ci + 2); // NameLength
        ci += 4;
        // Reserved (2) + DataOffset (2)
        // Put data at offset 0x20
        SMBUtil.writeInt2(0, ctx, ci); // Reserved
        SMBUtil.writeInt2(0x20, ctx, ci + 2); // DataOffset
        ci += 4;
        SMBUtil.writeInt4(8, ctx, ci); // DataLength
        ci += 4;

pkg syscall (darwin-arm64), type IfData struct, Recvquota uint8
pkg syscall (darwin-arm64), type IfData struct, Recvtiming uint32
pkg syscall (darwin-arm64), type IfData struct, Reserved1 uint32
pkg syscall (darwin-arm64), type IfData struct, Reserved2 uint32
pkg syscall (darwin-arm64), type IfData struct, Type uint8
pkg syscall (darwin-arm64), type IfData struct, Typelen uint8
pkg syscall (darwin-arm64), type IfData struct, Unused1 uint8

        pos += 4;
        // outputCount
        SMBUtil.writeInt4(outputCount, buf, pos);
        pos += 4;
        // ioctlFlags
        SMBUtil.writeInt4(ioctlFlags, buf, pos);
        pos += 4;
        // reserved2 (4 bytes)
        pos += 4;

        // Write payload data: input then output
        if (inputCount > 0 && inputBytes != null) {
            System.arraycopy(inputBytes, 0, buf, pos, inputCount);

085E          ; valid                  ;      ; NV8    # 6.0  MANDAIC PUNCTUATION
085F          ; disallowed                             # NA   <reserved-085F>
0860..086A    ; valid                                  # 10.0 SYRIAC LETTER MALAYALAM NGA..SYRIAC LETTER MALAYALAM SSA
086B..086F    ; disallowed                             # NA   <reserved-086B>..<reserved-086F>

        final int start = bufferIndex;

        buffer[bufferIndex] = (byte) 0x00; // Reserved
        bufferIndex++;
        buffer[bufferIndex++] = (byte) 0x00; // Reserved
        buffer[bufferIndex++] = (byte) 0x00; // Reserved

        this.totalParameterCount = SMBUtil.readInt4(buffer, bufferIndex);
        if (this.bufDataStart == 0) {

        bufferIndex += 2; // reserved
        this.dataCompactionMode = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 4; // 2 reserved
        this.dataLength = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        this.dataOffset = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 12; // 10 reserved

        return bufferIndex - start;
    }