Question

我正在开发一个应用程序，该应用程序将使用Windows VPN API为用户自动创建和连接VPN配置文件，但在尝试检查其连接状态时从Windows获得无意义的错误。我确定在此之前正确创建了配置文件（我可以很好地连接该配置文件），并且配置文件var非空并且是我创建的配置文件。

我的连接状态代码如下：

var vpnManagementAgent = new VpnManagementAgent();
var profiles = await vpnManagementAgent.GetProfilesAsync();
var profile = profiles.SingleOrDefault(p => p.ProfileName == "test");
logger.Trace($"got profile: {profile.PrettyPrint()}");
var result = profile.ConnectionStatus;
logger.Debug($"successfully got profile connection status: {result}");

尝试读取ConnectionStatus会导致此错误：

Error 1/17/2018 12:25:38 PM: IPC: [System.Exception] The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE))
   at Windows.Networking.Vpn.VpnNativeProfile.get_ConnectionStatus()
   at WindowsFullTrustProcessShared.ProfileService<GetVPNConnectionStatus>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at WindowsFullTrustProcess.MessageListener.<HandleRequest>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at WindowsAppServiceIPC.TypedMessageListenerThread`2.<HandleRequest>d__1.MoveNext()

有问题的功能签名：

//
// Summary:
//     Gets the current connection status.
//
// Returns:
//     An enumeration value giving current connection status.
public VpnManagementConnectionStatus ConnectionStatus { get; }

VpnManagementConnectionStatus枚举的定义：

//
// Summary:
//     Values used to report the current status of a VPN profile.
[ContractVersion(typeof(UniversalApiContract), 65536)]
public enum VpnManagementConnectionStatus
{
    //
    // Summary:
    //     The profile is disconnected.
    Disconnected = 0,
    //
    // Summary:
    //     The profile is in the process of disconnecting.
    Disconnecting = 1,
    //
    // Summary:
    //     The profile is connected.
    Connected = 2,
    //
    // Summary:
    //     The profile is in the process of connecting.
    Connecting = 3
}

据我所知，假设我有一个有效的配置文件对象，这个函数应该总是返回这个枚举的成员。如果配置文件存在并且已连接，则在运行此代码之前，这实际上可以正常工作。仅当配置文件未连接时，它才会出现上述错误。

我的代码显然有更多创建此配置文件，如果有人认为相关，我可以添加这些详细信息。但是，我可以连接这样的配置文件并在连接时检查其状态，这使我相信问题不在于配置文件创建代码。

Windows.Networking.Vpn.VpnNativeProfile.get_ConnectionStatus（）句柄无效错误

0 个答案: