FalcoSecurity.Plugin.Sdk

falcosecurity.plugin.sdk

.NET的非官方Falco插件SDK，由DNNE本機出口和Net6+本機內存管理提供支持。

Wiki

有關其工作原理的完整示例和添加信息，請查看Wiki！

Nuget軟件包

		desc	ChangElog
falcosecurity.plugin.sdk		核心插件SDK類型	ChangElog.md
falcosecurity.plugin.sdk.Generators		本機出口的來源生成器	ChangElog.md
falcosecurity.plugin.sdk.template		項目模板dotnet new falcoplugin

虛擬插件偷偷摸摸

 [ FalcoPlugin (
    Id = 999 ,
    Name = "dummy_plugin" ,
    Description = "A dummy plugin" ,
    Contacts = "mvenditto" ,
    RequiredApiVersion = "2.0.0" ,
    Version = "1.0.0" ) ]
public class Plugin : PluginBase , IEventSource , IFieldExtractor {
    public string EventSourceName => "dummy_source" ;

    public IEnumerable < string > EventSourcesToExtract 
        => Enumerable . Empty < string > ( ) ; // only consume ourselves event-source

    public IEnumerable < OpenParam > OpenParameters => 
        => Enumerable . Empty < string > ( ) ; // no specific open-params

    public IEnumerable < ExtractionField > Fields => new List < ExtractionField > {
        new ( type : "uint64" ,
            name : "dummy.counter" ,
            display : "Counter value" ,
            desc : "Current value of the internal counter" )
    } ;

    public IEventSourceInstance Open ( IEnumerable < OpenParam > ? openParams ) {
        return new CounterInstance ( ) ;
    }
    
    public void Close ( IEventSourceInstance instance ) {
        instance . Dispose ( ) ;
    }

    public void Extract ( IExtractionRequest extraction , IEventReader evt ) {
        var counter = BitConverter . ToInt32 ( evt . Data ) ;
        extraction . SetValue ( ( ulong ) counter ) ;
    }
}

public class CounterInstance : PullEventSourceInstance {
    public int Counter { get ; set ; }

    public CounterInstance ( ) : base ( batchSize : 10 , eventSize : 8 ) {
        Counter = 1 ;
    }

    protected override void PullEvent ( EventSourceInstanceContext ctx , IEventWriter evt ) {
        var unixNano = ( ulong ) DateTimeOffset . Now . ToUnixTimeSeconds ( ) * 1000000000 ;

        evt . Write ( BitConverter . GetBytes ( Counter ) ) ;

        evt . SetTimestamp ( unixNano ) ;

        if ( Counter >= 50 ) {
            ctx . IsEof = true ;
        }

        Counter += 1 ;
    }
} 

- rule : Dummy counter rule
  desc : Dummy counter equals 42
  condition : (dummy.counter=42)
  output : dummy.counter is 42 value=%dummy.counter
  priority : DEBUG
  source : dummy_source
  tags : [dummy]

 admin@someplace：〜$ tree/usr/share/falco
/usr/share/falco/
└ - 插件
    ├ - ─libjson.so
    ├ - ─libk8saudit.so
    └ -  dummy_plugin
        ├├─plugin_native.so
        ├ - ─falcosecurity.plugin.sdk.dll
        ├ - 。 falcosecurity.plugin.sdk.dummyplugin.dll
        ├ -  microsoft.extensions.ObjectPool.dll
        └└期falcosecurity.plugin.sdk.dummyplugin.runtimeconfig.json
        
admin@someplace：〜$ falco- Enable-Source Dummy_source
星期六11月5日18:08:52 2022：FALCO版本：0.33.0（x86_64）
[...截斷...]
星期六11月5日18:08:52 2022：啟用活動資源：Dummy_source
星期六11月5日18:08:52 2022：開幕式消息來源'Dummy_source'
星期六11月5日18:08:52 2022：用插件'dummy_plugin'開放捕獲
星期六11月5日18:08:52 2022：閉幕事件來源'Dummy_source'
18：08：52.000000000：debug dummy.counter是42個值= 42
檢測到的事件：1
規則按嚴重程度計數：
   調試：1
按規則名稱觸發規則：
   虛擬計數器規則：1

Admin@某個地方：〜$█

筆記

該SDK是非正式的，與Sysdig和falcosecurity/falco沒有相關性也不相關