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WCF传输安全：套接字连接已中止。

wcfwcf-security
3

我在实现传输安全方面遇到了问题。

我有两个服务（A和B）运行在同一台服务器上。服务A将调用服务B执行某些任务。当没有任何安全措施时，我可以正常通信。但是当我使用以下设置打开传输安全时：

  • 安全模式=传输
  • TransportClientCredentialType = Windows
  • ProtectionLevel = EncryptAndSign

服务A调用服务B时出现错误:

System.ServiceModel.CommunicationException: 套接字连接中止。这可能是由于处理消息时出现错误或远程主机超时而导致的，也可能是底层网络资源问题引起的。本地套接字超时为 '00:00:09.7810000'。 ---> System.IO.IOException: 读取操作失败，请参阅内部异常。 ---> System.ServiceModel.CommunicationException: 套接字连接中止。这可能是由于处理消息时出现错误或远程主机超时而导致的，也可能是底层网络资源问题引起的。本地套接字超时为 '00:00:09.7810000'。 ---> System.Net.Sockets.SocketException: 远程主机强迫关闭了一个现有的连接

我尝试将接收和发送超时更改为5分钟，但我仍然遇到相同的错误，持续时间大约相同。唯一的区别是我需要等待5分钟而不是1分钟。

有人可以解释一下原因以及如何解决吗？

以下是两个服务的配置文件：

ServiceA

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
  <system.web>
    <compilation targetFramework="4.5" debug="true" defaultLanguage="c#" />
  </system.web>
  <system.serviceModel>
    <protocolMapping>
      <remove scheme="net.tcp" />
      <add scheme="net.tcp" binding="netTcpBinding" bindingConfiguration="ReliableTCP" />
    </protocolMapping>
    <client/>
    <behaviors>
      <serviceBehaviors>
        <behavior name="mexTag">
          <serviceMetadata httpGetEnabled="false" />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
      </serviceBehaviors>
      <endpointBehaviors>
        <behavior name="tryBehavior">
          <dataContractSerializer maxItemsInObjectGraph="2147483647" />
        </behavior>
      </endpointBehaviors>
    </behaviors>
    <bindings>
      <customBinding>
        <binding name="mexTcp">
          <tcpTransport portSharingEnabled="true" />
        </binding>
      </customBinding>
      <netTcpBinding>
        <binding name="ReliableTCP" portSharingEnabled="true" sendTimeout="00:05:00" receiveTimeout="00:05:00" 
                 maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647" maxBufferSize="2147483647">
          <reliableSession enabled="true" />
          <security mode="Transport">
            <transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
          </security>
        </binding>
      </netTcpBinding>
    </bindings>
    <services>
      <service behaviorConfiguration="mexTag" name="Test.Service.ServiceAImpl">
        <endpoint address="net.tcp://app-svr:10010/ServiceA/ServiceAImpl/" behaviorConfiguration="tryBehavior"
          binding="netTcpBinding" bindingConfiguration="ReliableTCP" contract="Test.Service.IServiceA" />
        <endpoint address="net.tcp://app-svr:10012/ServiceA/ServiceAImpl/mex"
          binding="customBinding" bindingConfiguration="mexTcp" contract="IMetadataExchange" />
      </service>
    </services>
  </system.serviceModel>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true" />
    <!--
        To browse web app root directory during debugging, set the value below to true.
        Set to false before deployment to avoid disclosing web app folder information.
      -->
    <directoryBrowse enabled="true" />
  </system.webServer>
</configuration>

服务B

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
  <system.web>
    <compilation targetFramework="4.5" debug="true" defaultLanguage="c#" />
  </system.web>
  <system.serviceModel>
    <client>
      <endpoint address="net.tcp://app-svr:10010/ServiceA/ServiceAImpl/"
        binding="netTcpBinding" bindingConfiguration="NetTcpBinding_IServiceA"
        behaviorConfiguration="tryBehavior"
        contract="ServiceAReference.IServiceA" name="NetTcpBinding_IServiceA" />
    </client>
    <behaviors>
      <serviceBehaviors>
        <behavior name="MEXGET" >
          <!-- Add the following element to your service behavior configuration. -->
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="true" />
        </behavior>
      </serviceBehaviors>
      <endpointBehaviors>
        <behavior name="tryBehavior">
          <dataContractSerializer maxItemsInObjectGraph="2147483647" />
        </behavior>
      </endpointBehaviors>
    </behaviors>
    <bindings>
      <customBinding>
        <binding name="MexTcp">
          <tcpTransport portSharingEnabled="true" />
        </binding>
      </customBinding>
      <netTcpBinding>
        <binding name="ReliableTCP" portSharingEnabled="true">
          <reliableSession enabled="true" />
          <security mode="Transport">
            <transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
          </security>
        </binding>
        <binding name="NetTcpBinding_IServiceA" receiveTimeout="00:05:00" sendTimeout="00:05:00" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647" maxBufferSize="2147483647">
          <reliableSession enabled="true" />
          <security mode="Transport">
            <transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
          </security>
        </binding>
      </netTcpBinding>
      <mexTcpBinding>
        <binding name="MexTcp" />
      </mexTcpBinding>
    </bindings>
    <services>
      <service name="Test.Service.ServiceBImpl" behaviorConfiguration="MEXGET" >

        <endpoint address="mex"
                  binding="customBinding"
      bindingConfiguration="MexTcp"
                  contract="IMetadataExchange" />

        <endpoint address="mex"
                  binding="mexHttpBinding"
                  contract="IMetadataExchange" />
        <endpoint
             address="net.tcp://app-svr:10010/ServiceB/ServiceBImpl"
             binding="netTcpBinding" behaviorConfiguration="tryBehavior"
             bindingConfiguration="ReliableTCP"
             contract="Test.Service.ServiceB" />

        <host>
            <baseAddresses>
              <add baseAddress="http://app-svr:10011/ServiceB/ServiceBImpl" />
              <add baseAddress="net.tcp://app-svr:10010/ServiceB/ServiceBImpl" />
            </baseAddresses>
        </host>
      </service>
    </services>
  </system.serviceModel>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true" />
    <!--
        To browse web app root directory during debugging, set the value below to true.
        Set to false before deployment to avoid disclosing web app folder information.
      -->
    <directoryBrowse enabled="true" />
  </system.webServer>
</configuration>
4个回答
1

这里有一个解决方案在这里...你应该尝试一下...

  1. Added these behaviors at both service and client config.

    <behaviors>
 <endpointBehaviors>
  <behavior name="endpointBehavior">
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
</behavior>
 </endpointBehaviors>
</behaviors>

  2. Update these values to maximum size in both Client and Server config.

    <binding name="tcpBinding" receiveTimeout="00:15:00" sendTimeout="00:15:00"  maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647" maxBufferSize="2147483647">
  <security mode="None">
    <transport clientCredentialType="None" protectionLevel="None" />
    <message clientCredentialType="None" />
  </security>
</binding>
希望它有所帮助。
谢谢回复，但是上述解决方案对我不起作用。 - user1599647
1
我通过在托管 net.tcp web 服务的服务器上执行以下操作来解决了这个问题：
  1. 从 services.msc 中重新启动 NET TCP 端口共享服务
  2. 以管理员身份打开命令提示符并运行 IIS 重置
1

我曾遇到过同样的错误，原因是服务凭据错误或缺失。由于您正在使用tcp绑定，因此首先创建绑定并正确设置安全性：

NetTcpBinding binding = new NetTcpBinding(SecurityMode.Transport)
        {
            CloseTimeout = TimeSpan.FromSeconds(timeoutInSeconds),
            OpenTimeout = TimeSpan.FromSeconds(timeoutInSeconds),
            SendTimeout = TimeSpan.FromSeconds(timeoutInSeconds),
            ReceiveTimeout = TimeSpan.FromSeconds(timeoutInSeconds)
        };

        binding.Security.Transport.ClientCredentialType = 
TcpClientCredentialType.Windows;
        binding.MaxReceivedMessageSize = int.MaxValue;
        binding.MaxBufferSize = int.MaxValue;
        binding.MaxBufferPoolSize = int.MaxValue;

请在创建客户端后设置用户名和密码：
var serviceClient = new MyServiceClient(binding, endpointYouDefine);
serviceClient.ClientCredentials.Windows.ClientCredential = new NetworkCredential("usernameInActiveDirectory", "passwordForTheADUser", "yourdomain.com");

不要在此之后对客户端进行任何其他操作。我见过一些奇怪的行为，比如在分配凭据后以编程方式设置读取器配额，而凭据会被清除。
0
我已经为此创建了扩展方法。 一个是针对NetTcpBinding，另一个是针对NetNamedPipeBinding。当然，只能在内部服务中使用。时间很重要，因为如果在晚上没有使用默认服务，则第二天早上的第一个调用将失败。
    public static void ActivateMaxValues(this NetTcpBinding b)
    {
        b.OpenTimeout = TimeSpan.FromHours(10);
        b.CloseTimeout = TimeSpan.FromMinutes(10);
        b.ReceiveTimeout = TimeSpan.FromHours(10);
        b.SendTimeout = TimeSpan.FromHours(10);

        b.MaxBufferSize = int.MaxValue;
        b.MaxReceivedMessageSize = int.MaxValue;

        b.ReaderQuotas = new System.Xml.XmlDictionaryReaderQuotas()
        {
            MaxArrayLength = int.MaxValue,
            MaxBytesPerRead = int.MaxValue,
            MaxDepth = int.MaxValue,
            MaxNameTableCharCount = int.MaxValue,
            MaxStringContentLength = int.MaxValue
        };
    }

    public static void ActivateMaxValues(this NetNamedPipeBinding b)
    {
        b.TransactionFlow = true;

        b.OpenTimeout = TimeSpan.FromHours(1);
        b.CloseTimeout = TimeSpan.FromMinutes(10);
        b.ReceiveTimeout = TimeSpan.FromHours(1);
        b.SendTimeout = TimeSpan.FromHours(1);

        b.MaxBufferSize = int.MaxValue;
        b.MaxReceivedMessageSize = int.MaxValue;

        b.ReaderQuotas = new System.Xml.XmlDictionaryReaderQuotas()
        {
            MaxArrayLength = int.MaxValue,
            MaxBytesPerRead = int.MaxValue,
            MaxDepth = int.MaxValue,
            MaxNameTableCharCount = int.MaxValue,
            MaxStringContentLength = int.MaxValue
        };
    }
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