mirror of
https://github.com/OPCFoundation/UA-.NETStandard.git
synced 2026-10-28 14:09:56 +08:00
Martin Regen
7a04a4b396
- Add a solution to provide fuzzer support for afl-fuzz and libfuzzer. - Add fuzz targets for Binary, Json and Xml encoder and decoder fuzzing. For afl-fuzz and libfuzzer. - Fix issues in encoders and decoders when unexpected exceptions are returned. The expectation is to return only ServiceResultException with BadDecodingError, BadEncodingError or BadEncodingLimitsExceeded. - Add a tool to create Testcases. - Add a tool to playback crashes and timeouts. - Solution is extensible with common files to discover new fuzz targets by reflection. New fuzz projects can share many files with the first project. - Breaking change: Fix how BinaryDecoder is used: Previously, calling close on the BinaryDecoder implicitly disposed the stream. Change behavior so that `using` pattern can be applied across the board.
92 lines
3.6 KiB
C#
92 lines
3.6 KiB
C#
/* ========================================================================
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* Copyright (c) 2005-2024 The OPC Foundation, Inc. All rights reserved.
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*
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* OPC Foundation MIT License 1.00
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* The complete license agreement can be found here:
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* http://opcfoundation.org/License/MIT/1.00/
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* ======================================================================*/
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using static FuzzMethods;
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public static class Playback
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{
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/// <summary>
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/// Test the libfuzz methods on the files in the directory.
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/// </summary>
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/// <param name="directoryPath">The directory where to find the crash data.</param>
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/// <param name="stackTrace">If the stack trace should be written to output.</param>
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public static void Run(string directoryPath, bool stackTrace)
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{
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string path = Path.GetDirectoryName(directoryPath);
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string searchPattern = Path.GetFileName(directoryPath);
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List<Delegate> libFuzzMethods = FindFuzzMethods(typeof(LibFuzzSpan));
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IEnumerable<string> crashFiles;
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try
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{
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crashFiles = Directory.EnumerateFiles(path, searchPattern);
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}
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catch (Exception)
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{
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Console.WriteLine("Directory not found: {0}", path);
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return;
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}
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foreach (string crashFile in crashFiles)
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{
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Console.WriteLine("### Crash data {0:20} ###", Path.GetFileName(crashFile));
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byte[] crashData = File.ReadAllBytes(crashFile);
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foreach (Delegate method in libFuzzMethods)
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{
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if (method is LibFuzzSpan libFuzzMethod)
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{
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var stopWatch = new Stopwatch();
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try
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{
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stopWatch.Start();
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libFuzzMethod(crashData);
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stopWatch.Stop();
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Console.WriteLine("Target: {0:30} Elapsed: {1}ms", libFuzzMethod.Method.Name, stopWatch.ElapsedMilliseconds);
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}
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catch (Exception ex)
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{
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stopWatch.Stop();
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Console.WriteLine("Target: {0:30} Elapsed: {1}ms", libFuzzMethod.Method.Name, stopWatch.ElapsedMilliseconds);
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Console.WriteLine("{0}:{1}", ex.GetType().Name, ex.Message);
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if (stackTrace)
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{
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Console.WriteLine(ex.StackTrace);
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}
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}
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}
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}
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}
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}
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}
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