1 | /*
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2 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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3 | * All rights reserved.
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4 | *
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5 | * Redistribution and use in source and binary forms, with or without modification,
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6 | * are permitted provided that the following conditions are met:
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7 | *
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8 | * 1. Redistributions of source code must retain the above copyright notice,
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9 | * this list of conditions and the following disclaimer.
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10 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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11 | * this list of conditions and the following disclaimer in the documentation
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12 | * and/or other materials provided with the distribution.
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13 | * 3. The name of the author may not be used to endorse or promote products
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14 | * derived from this software without specific prior written permission.
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15 | *
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16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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19 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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21 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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24 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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25 | * OF SUCH DAMAGE.
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26 | *
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27 | * This file is part of the lwIP TCP/IP stack.
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28 | *
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29 | * Author: Martin Hentschel <info@cl-soft.de>
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30 | *
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31 | */
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32 |
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33 | using System;
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34 | using System.Collections.Generic;
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35 | using System.IO;
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36 | using System.Reflection;
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37 | using System.Text.RegularExpressions;
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38 | using CCodeGeneration;
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39 | using Lextm.SharpSnmpLib.Mib;
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40 | using Lextm.SharpSnmpLib.Mib.Elements.Entities;
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41 | using Lextm.SharpSnmpLib.Mib.Elements.Types;
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42 | using LwipSnmpCodeGeneration;
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43 |
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44 | namespace LwipMibCompiler
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45 | {
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46 | class Program
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47 | {
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48 | private static readonly Regex _alphaNumericRegex = new Regex("[^a-zA-Z0-9]");
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49 |
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50 | static void Main(string[] args)
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51 | {
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52 | Console.WriteLine("lwIP MIB Compiler");
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53 | Console.WriteLine("");
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54 |
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55 | // check args
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56 | if ((args.Length < 2) || String.IsNullOrWhiteSpace(args[0]) || String.IsNullOrWhiteSpace(args[1]))
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57 | {
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58 | PrintUsage();
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59 | return;
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60 | }
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61 |
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62 | string mibFile = args[0];
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63 | if (!File.Exists(mibFile))
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64 | {
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65 | Console.WriteLine(String.Format("Unable to find file '{0}'!", mibFile));
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66 | }
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67 |
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68 | string destFile = args[1];
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69 | string destHeaderFile;
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70 |
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71 | if (Directory.Exists(destFile))
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72 | {
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73 | // only directory passed -> create dest filename from mib filename
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74 | string mibFileName = Path.GetFileNameWithoutExtension(mibFile).ToLowerInvariant();
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75 | destFile = Path.Combine(destFile, mibFileName + ".c");
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76 | }
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77 |
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78 | string destFileExt = Path.GetExtension(destFile);
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79 | if (!String.IsNullOrEmpty(destFileExt))
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80 | {
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81 | destHeaderFile = destFile.Substring(0, destFile.Length - destFileExt.Length);
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82 | }
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83 | else
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84 | {
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85 | destHeaderFile = destFile;
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86 | }
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87 | destHeaderFile += ".h";
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88 |
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89 | for (int i=2; i<args.Length; i++)
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90 | {
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91 | if (!String.IsNullOrWhiteSpace(args[i]) && Directory.Exists(args[i]))
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92 | {
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93 | MibTypesResolver.RegisterResolver(new FileSystemMibResolver(args[i], true));
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94 | }
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95 | }
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96 |
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97 |
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98 | // read and resolve MIB
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99 | Console.WriteLine(" Reading MIB file...");
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100 |
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101 | MibDocument md = new MibDocument(mibFile);
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102 | MibTypesResolver.ResolveTypes(md.Modules[0]);
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103 | MibTree mt = new MibTree(md.Modules[0] as MibModule);
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104 |
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105 | if (mt.Root.Count == 0)
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106 | {
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107 | Console.WriteLine("No root element found inside MIB!");
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108 | return;
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109 | }
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110 |
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111 | MibCFile generatedFile = new MibCFile();
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112 | MibHeaderFile generatedHeaderFile = new MibHeaderFile();
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113 |
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114 | foreach (MibTreeNode mibTreeNode in mt.Root)
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115 | {
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116 | // create LWIP object tree from MIB structure
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117 | Console.WriteLine(" Creating lwIP object tree " + mibTreeNode.Entity.Name);
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118 |
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119 | SnmpMib snmpMib = new SnmpMib();
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120 | snmpMib.Oid = mibTreeNode.Entity.Value;
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121 | snmpMib.BaseOid = MibTypesResolver.ResolveOid(mibTreeNode.Entity).GetOidValues();
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122 | snmpMib.Name = mibTreeNode.Entity.Name;
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123 |
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124 | ProcessMibTreeNode(mibTreeNode, snmpMib);
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125 |
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126 | // let the tree transform itself depending on node structure
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127 | snmpMib.Analyze();
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128 |
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129 | if (snmpMib.ChildNodes.Count != 0)
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130 | {
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131 | // generate code from LWIP object tree
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132 | Console.WriteLine(" Generating code " + snmpMib.Name);
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133 | snmpMib.Generate(generatedFile, generatedHeaderFile);
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134 | }
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135 | }
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136 |
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137 | string preservedCode = MibCFile.GetPreservedCode(destFile);
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138 | if (!string.IsNullOrEmpty(preservedCode))
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139 | {
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140 | generatedFile.PreservedCode.Add(new PlainText(preservedCode));
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141 | }
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142 | else
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143 | {
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144 | generatedFile.PreservedCode.AddRange(generatedFile.Implementation);
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145 | }
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146 | generatedFile.Implementation.Clear();
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147 |
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148 |
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149 | using (StreamWriter fileWriter = new StreamWriter(destHeaderFile))
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150 | {
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151 | CGenerator cGenerator = new CGenerator(fileWriter, destHeaderFile, 3, " ", Environment.NewLine);
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152 | generatedHeaderFile.Save(cGenerator);
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153 | }
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154 | using (StreamWriter fileWriter = new StreamWriter(destFile))
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155 | {
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156 | CGenerator cGenerator = new CGenerator(fileWriter, destFile, 3, " ", Environment.NewLine);
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157 | generatedFile.Save(cGenerator);
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158 | }
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159 |
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160 | Console.WriteLine(" Done");
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161 | }
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162 |
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163 | private static void PrintUsage()
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164 | {
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165 | string codeBase = Assembly.GetExecutingAssembly().CodeBase;
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166 | string appName = Path.GetFileName(codeBase);
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167 |
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168 | Console.WriteLine("Usage:");
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169 | Console.WriteLine(String.Format(" {0} <source MIB file> <dest C file> [<search path 1 for referred MIB's> <search path 2 for referred MIB's> ...]", appName));
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170 | Console.WriteLine("");
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171 | Console.WriteLine(" <source MIB file>");
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172 | Console.WriteLine(" Path and filename of MIB file to convert.");
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173 | Console.WriteLine("");
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174 | Console.WriteLine(" <dest C file>");
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175 | Console.WriteLine(" Destination path and file. If a path is passed only, filename is auto");
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176 | Console.WriteLine(" generated from MIB file name.");
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177 | Console.WriteLine("");
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178 | Console.WriteLine(" <search path X for referred MIB's>");
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179 | Console.WriteLine(" It's important to provide all referred MIB's in order to correctly ");
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180 | Console.WriteLine(" resolve all used types.");
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181 | Console.WriteLine("");
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182 | }
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183 |
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184 |
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185 | #region Generation of LWIP Object Tree
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186 |
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187 | private static void ProcessMibTreeNode(MibTreeNode mibTreeNode, SnmpTreeNode assignedSnmpNode)
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188 | {
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189 | foreach (MibTreeNode mtn in mibTreeNode.ChildNodes)
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190 | {
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191 | // in theory container nodes may also be scalars or tables at the same time (for now only process real containers)
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192 | if (mtn.NodeType == MibTreeNodeType.Container)
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193 | {
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194 | SnmpTreeNode snmpTreeNode = GenerateSnmpTreeNode(mtn, assignedSnmpNode);
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195 | assignedSnmpNode.ChildNodes.Add(snmpTreeNode);
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196 |
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197 | ProcessMibTreeNode(mtn, snmpTreeNode);
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198 | }
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199 | else if ((mtn.NodeType & MibTreeNodeType.Scalar) != 0)
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200 | {
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201 | SnmpScalarNode snmpScalarNode = GenerateSnmpScalarNode(mtn, assignedSnmpNode);
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202 | if (snmpScalarNode != null)
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203 | {
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204 | assignedSnmpNode.ChildNodes.Add(snmpScalarNode);
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205 | }
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206 | }
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207 | else if ((mtn.NodeType & MibTreeNodeType.Table) != 0)
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208 | {
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209 | SnmpTableNode snmpTableNode = GenerateSnmpTableNode(mtn, assignedSnmpNode);
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210 | if (snmpTableNode != null)
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211 | {
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212 | assignedSnmpNode.ChildNodes.Add(snmpTableNode);
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213 | }
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214 | }
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215 | }
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216 | }
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217 |
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218 | private static SnmpTreeNode GenerateSnmpTreeNode(MibTreeNode mibTreeNode, SnmpTreeNode parentNode)
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219 | {
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220 | SnmpTreeNode result = new SnmpTreeNode(parentNode);
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221 | result.Name = _alphaNumericRegex.Replace (mibTreeNode.Entity.Name, "");
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222 | result.Oid = mibTreeNode.Entity.Value;
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223 | result.FullOid = MibTypesResolver.ResolveOid(mibTreeNode.Entity).GetOidString();
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224 |
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225 | return result;
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226 | }
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227 |
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228 | private static SnmpScalarNode GenerateSnmpScalarNode(MibTreeNode mibTreeNode, SnmpTreeNode parentNode, bool ignoreAccessibleFlag = false)
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229 | {
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230 | ObjectType ote = mibTreeNode.Entity as ObjectType;
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231 | if (ote != null)
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232 | {
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233 | return GenerateSnmpScalarNode(ote, parentNode, ignoreAccessibleFlag);
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234 | }
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235 |
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236 | return null;
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237 | }
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238 |
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239 | private static SnmpScalarNode GenerateSnmpScalarNode(ObjectType ote, SnmpTreeNode parentNode, bool ignoreAccessibleFlag = false)
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240 | {
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241 | SnmpScalarNode result;
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242 |
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243 | ITypeAssignment mibType = ote.BaseType;
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244 | IntegerType it = (mibType as IntegerType);
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245 | if (it != null)
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246 | {
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247 | if (ote.ReferredType.Name == Symbol.TruthValue.ToString())
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248 | {
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249 | result = new SnmpScalarNodeTruthValue(parentNode);
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250 | }
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251 | else if ((it.Type == IntegerType.Types.Integer) || (it.Type == IntegerType.Types.Integer32))
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252 | {
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253 | result = new SnmpScalarNodeInt(parentNode);
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254 | }
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255 | else
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256 | {
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257 | Console.WriteLine(String.Format("Unsupported IntegerType '{0}'!", it.Type));
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258 | return null;
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259 | }
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260 | if (it.IsEnumeration)
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261 | {
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262 | result.Restrictions.AddRange(CreateRestrictions(it.Enumeration));
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263 | }
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264 | else
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265 | {
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266 | result.Restrictions.AddRange(CreateRestrictions(it.Ranges));
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267 | }
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268 | }
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269 | else
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270 | {
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271 | UnsignedType ut = (mibType as UnsignedType);
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272 | if (ut != null)
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273 | {
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274 | if ((ut.Type == UnsignedType.Types.Unsigned32) ||
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275 | (ut.Type == UnsignedType.Types.Gauge32))
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276 | {
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277 | result = new SnmpScalarNodeUint(SnmpDataType.Gauge, parentNode);
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278 | }
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279 | else if (ut.Type == UnsignedType.Types.Counter32)
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280 | {
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281 | result = new SnmpScalarNodeUint(SnmpDataType.Counter, parentNode);
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282 | }
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283 | else if (ut.Type == UnsignedType.Types.TimeTicks)
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284 | {
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285 | result = new SnmpScalarNodeUint(SnmpDataType.TimeTicks, parentNode);
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286 | }
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287 | else if (ut.Type == UnsignedType.Types.Counter64)
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288 | {
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289 | result = new SnmpScalarNodeCounter64(parentNode);
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290 | if ((ut.Ranges != null) && (ut.Ranges.Count > 0))
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291 | {
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292 | Console.WriteLine(String.Format("Generation of ranges is not supported for Counter64 type!"));
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293 | return null;
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294 | }
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295 | }
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296 | else
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297 | {
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298 | Console.WriteLine(String.Format("Unsupported UnsignedType '{0}'!", ut.Type));
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299 | return null;
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300 | }
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301 | result.Restrictions.AddRange(CreateRestrictions(ut.Ranges));
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302 | }
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303 | else if (mibType is IpAddressType)
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304 | {
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305 | result = new SnmpScalarNodeOctetString(SnmpDataType.IpAddress, parentNode);
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306 | result.Restrictions.AddRange(CreateRestrictions((mibType as OctetStringType).Size));
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307 | }
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308 | else if (mibType is OpaqueType)
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309 | {
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310 | result = new SnmpScalarNodeOctetString(SnmpDataType.Opaque, parentNode);
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311 | result.Restrictions.AddRange(CreateRestrictions((mibType as OctetStringType).Size));
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312 | }
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313 | else if (mibType is OctetStringType)
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314 | {
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315 | result = new SnmpScalarNodeOctetString(SnmpDataType.OctetString, parentNode);
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316 | result.Restrictions.AddRange(CreateRestrictions((mibType as OctetStringType).Size));
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317 | }
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318 | else if (mibType is ObjectIdentifierType)
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319 | {
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320 | result = new SnmpScalarNodeObjectIdentifier(parentNode);
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321 | }
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322 | else if (mibType is BitsType)
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323 | {
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324 | result = new SnmpScalarNodeBits(parentNode, (uint)((mibType as BitsType).Map.GetHighestValue() + 1));
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325 | result.Restrictions.AddRange(CreateRestrictions(mibType as BitsType));
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326 | }
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327 | else
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328 | {
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329 | TypeAssignment ta = mibType as TypeAssignment;
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330 | if (ta != null)
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331 | {
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332 | Console.WriteLine(String.Format("Unsupported BaseType: Module='{0}', Name='{1}', Type='{2}'!", ta.Module.Name, ta.Name, ta.Type));
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333 | }
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334 | else
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335 | {
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336 | Console.WriteLine(String.Format("Unsupported BaseType: Module='{0}', Name='{1}'!", mibType.Module, mibType.Name));
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337 | }
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338 |
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339 | return null;
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340 | }
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341 | }
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342 |
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343 | result.Name = _alphaNumericRegex.Replace(ote.Name, "");
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344 | result.Oid = ote.Value;
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345 |
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346 | if (ote.Access == MaxAccess.readWrite)
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347 | {
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348 | result.AccessMode = SnmpAccessMode.ReadWrite;
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349 | }
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350 | else if (ote.Access == MaxAccess.readOnly)
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351 | {
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352 | result.AccessMode = SnmpAccessMode.ReadOnly;
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353 | }
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354 | else if (ote.Access == MaxAccess.readCreate)
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355 | {
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356 | result.AccessMode = SnmpAccessMode.ReadOnly;
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357 | }
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358 | else if (ignoreAccessibleFlag && (ote.Access == MaxAccess.notAccessible))
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359 | {
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360 | result.AccessMode = SnmpAccessMode.NotAccessible;
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361 | }
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362 | else
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363 | {
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364 | // not accessible or unsupported accress type
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365 | return null;
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366 | }
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367 |
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368 | return result;
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369 | }
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370 |
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371 | private static IEnumerable<IRestriction> CreateRestrictions(ValueRanges ranges)
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372 | {
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373 | List<IRestriction> result = new List<IRestriction>();
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374 |
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375 | if (ranges != null)
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376 | {
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377 | foreach (ValueRange range in ranges)
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378 | {
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379 | if (!range.End.HasValue)
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380 | {
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381 | result.Add(new IsEqualRestriction(range.Start));
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382 | }
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383 | else
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384 | {
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385 | result.Add(new IsInRangeRestriction(range.Start, range.End.Value));
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386 | }
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387 | }
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388 | }
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389 |
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390 | return result;
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391 | }
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392 |
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393 | private static IEnumerable<IRestriction> CreateRestrictions(ValueMap map)
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394 | {
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395 | if ((map != null) && (map.Count > 0))
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396 | {
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397 | return CreateRestrictions(map.GetContinousRanges());
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398 | }
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399 |
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400 | return new List<IRestriction>();
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401 | }
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402 |
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403 | private static IEnumerable<IRestriction> CreateRestrictions(BitsType bt)
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404 | {
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405 | List<IRestriction> result = new List<IRestriction>();
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406 |
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407 | if ((bt != null) && (bt.Map != null))
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408 | {
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409 | result.Add(new BitMaskRestriction(bt.Map.GetBitMask()));
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410 | }
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411 |
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412 | return result;
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413 | }
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414 |
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415 | private static SnmpTableNode GenerateSnmpTableNode(MibTreeNode mibTreeNode, SnmpTreeNode parentNode)
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416 | {
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417 | SnmpTableNode result = new SnmpTableNode(parentNode);
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418 | result.Name = mibTreeNode.Entity.Name;
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419 | result.Oid = mibTreeNode.Entity.Value;
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420 |
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421 | // expect exactly one row entry
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422 | if ((mibTreeNode.ChildNodes.Count != 1) || ((mibTreeNode.ChildNodes[0].NodeType & MibTreeNodeType.TableRow) == 0) || (mibTreeNode.ChildNodes[0].Entity.Value != 1))
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423 | {
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424 | Console.WriteLine("Found table with unsupported properties! Table needs exactly one (fixed) TableRow with OID=1 ! (" + mibTreeNode.Entity.Name + ")");
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425 | return null;
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426 | }
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427 |
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428 | MibTreeNode rowNode = mibTreeNode.ChildNodes[0];
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429 |
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430 | ObjectType rot = rowNode.Entity as ObjectType;
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431 | if (rot != null)
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432 | {
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433 | if (!String.IsNullOrWhiteSpace(rot.Augments))
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434 | {
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435 | result.AugmentedTableRow = rot.Augments;
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436 |
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437 | // the indeces from another table shall be used because this table is only an extension of it
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438 | rot = MibTypesResolver.ResolveDeclaration(rot.Module, rot.Augments) as ObjectType;
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439 | }
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440 |
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441 | if (rot.Indices != null)
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442 | {
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443 | foreach (string index in rot.Indices)
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444 | {
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445 | ObjectType indexEntity = MibTypesResolver.ResolveDeclaration(rot.Module, index) as ObjectType;
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446 | if (indexEntity == null)
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447 | {
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448 | Console.WriteLine(String.Format("Could not resolve index '{0}' for table '{1}'! Table omitted!", index, result.Name));
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449 | return null;
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450 | }
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451 |
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452 | result.IndexNodes.Add(GenerateSnmpScalarNode(indexEntity, parentNode, ignoreAccessibleFlag: true));
|
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453 | }
|
---|
454 | }
|
---|
455 | }
|
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456 |
|
---|
457 | if (result.IndexNodes.Count == 0)
|
---|
458 | {
|
---|
459 | // a table cannot be used without index
|
---|
460 | Console.WriteLine("Found table without any index column ! (" + mibTreeNode.Entity.Name + ")");
|
---|
461 | return null;
|
---|
462 | }
|
---|
463 |
|
---|
464 | // add child nodes
|
---|
465 | foreach (MibTreeNode cellNode in rowNode.ChildNodes)
|
---|
466 | {
|
---|
467 | SnmpScalarNode ssn = GenerateSnmpScalarNode(cellNode, parentNode);
|
---|
468 | if (ssn != null)
|
---|
469 | {
|
---|
470 | result.CellNodes.Add(ssn);
|
---|
471 | }
|
---|
472 | }
|
---|
473 |
|
---|
474 | return result;
|
---|
475 | }
|
---|
476 |
|
---|
477 | #endregion
|
---|
478 |
|
---|
479 | }
|
---|
480 | }
|
---|