2008-03-05 09:52:00 -05:00
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//////////////////////////////////////////////////////////////////////////////
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//
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// Microsoft Research Singularity / Netstack
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// File: TestDhcpClient.cs
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//
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// Note:
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// This is a minimal test of Dns packet assembly and
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// parsing. It only tests good input to date.
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//
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using System;
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using System.Diagnostics;
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using System.Net.IP;
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using Drivers.Net;
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using NetStack.Protocols;
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using Dns = NetStack.Protocols.Dns;
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namespace NetStack.Protocols.TestDnsClient
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{
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public class Test
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{
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private static readonly byte [][] rawPackets = new byte [][] {
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// A small selection of good DNS frame dumps
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new byte [] {
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0x00,0x01,0x01,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,
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0x01,0x33,0x01,0x30,0x03,0x32,0x34,0x34,0x03,0x32,0x30,0x39,
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0x07,0x69,0x6e,0x2d,0x61,0x64,0x64,0x72,0x04,0x61,0x72,0x70,
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0x61,0x00,0x00,0x0c,0x00,0x01,
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},
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new byte [] {
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0x00,0x01,0x81,0x80,0x00,0x01,0x00,0x01,0x00,0x00,0x00,0x00,
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0x01,0x33,0x01,0x30,0x03,0x32,0x34,0x34,0x03,0x32,0x30,0x39,
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0x07,0x69,0x6e,0x2d,0x61,0x64,0x64,0x72,0x04,0x61,0x72,0x70,
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0x61,0x00,0x00,0x0c,0x00,0x01,0xc0,0x0c,0x00,0x0c,0x00,0x01,
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0x00,0x00,0x09,0x2a,0x00,0x16,0x09,0x72,0x65,0x73,0x6f,0x6c,
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0x76,0x65,0x72,0x31,0x06,0x6c,0x65,0x76,0x65,0x6c,0x33,0x03,
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0x6e,0x65,0x74,0x00,
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},
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new byte [] {
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0x00,0x02,0x01,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,
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0x09,0x6d,0x69,0x63,0x72,0x6f,0x73,0x6f,0x66,0x74,0x03,0x63,
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0x6f,0x6d,0x00,0x00,0x0f,0x00,0x01,
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},
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new byte [] {
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0x00,0x02,0x81,0x80,0x00,0x01,0x00,0x03,0x00,0x00,0x00,0x00,
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0x09,0x6d,0x69,0x63,0x72,0x6f,0x73,0x6f,0x66,0x74,0x03,0x63,
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0x6f,0x6d,0x00,0x00,0x0f,0x00,0x01,0xc0,0x0c,0x00,0x0f,0x00,
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0x01,0x00,0x00,0x00,0xf0,0x00,0x0a,0x00,0x0a,0x05,0x6d,0x61,
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0x69,0x6c,0x61,0xc0,0x0c,0xc0,0x0c,0x00,0x0f,0x00,0x01,0x00,
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0x00,0x00,0xf0,0x00,0x0a,0x00,0x0a,0x05,0x6d,0x61,0x69,0x6c,
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0x62,0xc0,0x0c,0xc0,0x0c,0x00,0x0f,0x00,0x01,0x00,0x00,0x00,
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0xf0,0x00,0x0a,0x00,0x0a,0x05,0x6d,0x61,0x69,0x6c,0x63,0xc0,
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0x0c,
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},
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new byte [] {
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0x00,0x03,0x01,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,
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0x03,0x77,0x77,0x77,0x09,0x6d,0x69,0x63,0x72,0x6f,0x73,0x6f,
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0x66,0x74,0x03,0x63,0x6f,0x6d,0x00,0x00,0x01,0x00,0x01,
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},
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new byte [] {
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0x00,0x03,0x81,0x80,0x00,0x01,0x00,0x02,0x00,0x00,0x00,0x00,
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0x03,0x77,0x77,0x77,0x09,0x6d,0x69,0x63,0x72,0x6f,0x73,0x6f,
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0x66,0x74,0x03,0x63,0x6f,0x6d,0x00,0x00,0x01,0x00,0x01,0xc0,
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0x0c,0x00,0x05,0x00,0x01,0x00,0x00,0x0b,0xa3,0x00,0x1d,0x03,
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0x77,0x77,0x77,0x09,0x6d,0x69,0x63,0x72,0x6f,0x73,0x6f,0x66,
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0x74,0x03,0x63,0x6f,0x6d,0x05,0x6e,0x73,0x61,0x74,0x63,0x03,
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0x6e,0x65,0x74,0x00,0xc0,0x2f,0x00,0x01,0x00,0x01,0x00,0x00,
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0x01,0x19,0x00,0x04,0xcf,0x2e,0x9c,0x9c,
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},
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new byte [] {
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0x00,0x04,0x01,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,
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0x03,0x77,0x77,0x77,0x09,0x6d,0x69,0x63,0x72,0x6f,0x73,0x6f,
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0x66,0x74,0x03,0x63,0x6f,0x6d,0x05,0x6e,0x73,0x61,0x74,0x63,
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0x03,0x6e,0x65,0x74,0x00,0x00,0x01,0x00,0x01,
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},
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new byte [] {
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0x00,0x04,0x81,0x80,0x00,0x01,0x00,0x01,0x00,0x00,0x00,0x00,
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0x03,0x77,0x77,0x77,0x09,0x6d,0x69,0x63,0x72,0x6f,0x73,0x6f,
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0x66,0x74,0x03,0x63,0x6f,0x6d,0x05,0x6e,0x73,0x61,0x74,0x63,
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0x03,0x6e,0x65,0x74,0x00,0x00,0x01,0x00,0x01,0xc0,0x0c,0x00,
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0x01,0x00,0x01,0x00,0x00,0x01,0x09,0x00,0x04,0xcf,0x2e,0x9c,
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0x9c,
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},
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new byte [] {
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0x00,0x05,0x01,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,
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0x03,0x77,0x77,0x77,0x07,0x68,0x6f,0x74,0x6d,0x61,0x69,0x6c,
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0x03,0x63,0x6f,0x6d,0x00,0x00,0x01,0x00,0x01,
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},
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new byte [] {
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0x00,0x05,0x81,0x80,0x00,0x01,0x00,0x04,0x00,0x00,0x00,0x00,
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0x03,0x77,0x77,0x77,0x07,0x68,0x6f,0x74,0x6d,0x61,0x69,0x6c,
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0x03,0x63,0x6f,0x6d,0x00,0x00,0x01,0x00,0x01,0xc0,0x0c,0x00,
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0x05,0x00,0x01,0x00,0x00,0x08,0x2a,0x00,0x1b,0x03,0x77,0x77,
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0x77,0x07,0x68,0x6f,0x74,0x6d,0x61,0x69,0x6c,0x03,0x63,0x6f,
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0x6d,0x05,0x6e,0x73,0x61,0x74,0x63,0x03,0x6e,0x65,0x74,0x00,
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0xc0,0x2d,0x00,0x01,0x00,0x01,0x00,0x00,0x08,0x2a,0x00,0x04,
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0xcf,0x44,0xab,0xe9,0xc0,0x2d,0x00,0x01,0x00,0x01,0x00,0x00,
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0x08,0x2a,0x00,0x04,0xcf,0x44,0xac,0xef,0xc0,0x2d,0x00,0x01,
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0x00,0x01,0x00,0x00,0x08,0x2a,0x00,0x04,0xcf,0x44,0xad,0xf5,
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},
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new byte [] {
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0x00,0x02,0x85,0x83,0x00,0x01,0x00,0x00,0x00,0x01,0x00,0x00,
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0x08,0x6f,0x68,0x6f,0x64,0x73,0x6f,0x6e,0x32,0x00,0x00,0x01,
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0x00,0x01,0x00,0x00,0x06,0x00,0x01,0x00,0x00,0x0e,0x10,0x00,
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0x3d,0x0a,0x63,0x6f,0x72,0x70,0x2d,0x64,0x63,0x2d,0x30,0x36,
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0x04,0x63,0x6f,0x72,0x70,0x09,0x6d,0x69,0x63,0x72,0x6f,0x73,
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0x6f,0x66,0x74,0x03,0x63,0x6f,0x6d,0x00,0x07,0x6d,0x61,0x72,
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0x69,0x6f,0x72,0x6f,0xc0,0x35,0x00,0x00,0x07,0xaa,0x00,0x00,
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0x0e,0x10,0x00,0x00,0x02,0x58,0x00,0x01,0x51,0x80,0x00,0x00,
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0x0e,0x10,
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},
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new byte [] {
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0x00,0x03,0x81,0x80,0x00,0x01,0x00,0x01,0x00,0x00,0x00,0x00,
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0x03,0x32,0x31,0x31,0x03,0x32,0x35,0x34,0x02,0x35,0x35,0x03,
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0x31,0x35,0x37,0x07,0x49,0x4e,0x2d,0x41,0x44,0x44,0x52,0x04,
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0x41,0x52,0x50,0x41,0x00,0x00,0x0c,0x00,0x01,0xc0,0x0c,0x00,
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0x0c,0x00,0x01,0x00,0x00,0x02,0x50,0x00,0x27,0x0a,0x72,0x65,
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0x64,0x2d,0x64,0x6e,0x73,0x2d,0x30,0x31,0x07,0x72,0x65,0x64,
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0x6d,0x6f,0x6e,0x64,0x04,0x63,0x6f,0x72,0x70,0x09,0x6d,0x69,
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0x63,0x72,0x6f,0x73,0x6f,0x66,0x74,0x03,0x63,0x6f,0x6d,0x00,
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},
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};
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public static void Dump(byte [] data)
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{
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2008-11-17 18:29:00 -05:00
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for (int i = 0; i < data.Length; i += 16) {
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2008-03-05 09:52:00 -05:00
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Console.Write("{0:x4} ", i);
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int rowEnd = Math.Min(16, data.Length - i) + i;
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// Hex dump
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for (int j = i; j != rowEnd; j++)
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Console.Write("{0:x2} ", data[j]);
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for (int j = rowEnd; (j % 16) != 0; j++)
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Console.Write(" ");
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Console.Write(" ");
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// ASCII dump
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2008-11-17 18:29:00 -05:00
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for (int j = i; j < rowEnd; j++) {
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2008-03-05 09:52:00 -05:00
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if (data[j] > 31 && data[j] < 128)
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Console.Write("{0}", (char)data[j]);
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else
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Console.Write(".");
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}
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Console.Write("\n");
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}
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}
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public static void TestByteParsing()
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{
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int packetCount = rawPackets.Length / rawPackets.Rank;
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2008-11-17 18:29:00 -05:00
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for (int i = 0; i < packetCount; i++) {
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2008-03-05 09:52:00 -05:00
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Console.WriteLine("-- Packet {0} ---", i);
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Dump(rawPackets[i]);
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int offset = 0;
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Dns.Format format = Dns.Format.Parse(rawPackets[i],
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ref offset);
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Debug.Assert(offset == rawPackets[i].Length ||
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format.GetRCode() != Dns.RCode.NoError);
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Debug.Assert(format == format);
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// format.Size may not equal offset here, because
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// packet may have RFC1035 compression enabled.
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// Debug.Assert(offset == format.Size)
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offset = 0;
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byte [] rendered = new byte [format.Size];
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format.Write(rendered, ref offset);
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offset = 0;
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Dns.Format restored = Dns.Format.Parse(rendered, ref offset);
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Debug.Assert(format.GetHashCode() == restored.GetHashCode());
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}
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}
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public static void TestLabelEncoding()
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{
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string [] passes = new string [] {
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"a", "foo", "moo-ba.lah-lah-lah.com",
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"icicle.infernal.fiery.hell.net",
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"1.2.222.221.in-addr.arpa",
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// 63 characters between separators
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// 3 separators
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// 4 * 63 + 3 = 255 characters
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"abcdefghij0123456789abcdefghij0123456789" +
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"abcdefghij0123456789abc" + "." +
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"abcdefghij0123456789abcdefghij0123456789" +
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"abcdefghij0123456789abc" + "." +
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"abcdefghij0123456789abcdefghij0123456789" +
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"abcdefghij0123456789abc" + "." +
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"abcdefghij0123456789abcdefghij0123456789" +
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"abcdefghij0123456789abc"
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};
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2008-11-17 18:29:00 -05:00
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foreach (string original in passes) {
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2008-03-05 09:52:00 -05:00
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byte [] encoded = Dns.LabelEncoding.GetBytes(original);
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string decoded;
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int used = Dns.LabelEncoding.GetString(encoded, 0,
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out decoded);
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int expected = Dns.LabelEncoding.GetByteCount(original);
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Debug.Assert(used == expected);
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Console.WriteLine("\"{0}\" \"{1}\" {2}",
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original, decoded,
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(original != decoded) ? "*" : " ");
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}
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}
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public static void Main()
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{
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TestLabelEncoding();
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TestByteParsing();
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}
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}
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} // NetStack.Runtime.TestDnsClient
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