C# 获取当前正在使用的网络适配器_C#_Asp.net Core_.net Core

C# 获取当前正在使用的网络适配器

c# asp.net-core .net-core

C# 获取当前正在使用的网络适配器,c#,asp.net-core,.net-core,C#,Asp.net Core,.net Core,我正在尝试获取当前使用的网络适配器。例如，如果我在ASP.NET Core中接收到一个web请求，我想知道使用哪个适配器来处理该请求谢谢您可以使用获取连接的本地（服务器）端的IP地址，然后查找绑定了相同地址的实例 using System.Linq; using System.Net.NetworkInformation; using Microsoft.AspNetCore.Mvc; using Newtonsoft.Json; namespace WebApplication1.Co

我正在尝试获取当前使用的网络适配器。例如，如果我在ASP.NET Core中接收到一个web请求，我想知道使用哪个适配器来处理该请求

谢谢

您可以使用获取连接的本地（服务器）端的IP地址，然后查找绑定了相同地址的实例

using System.Linq;
using System.Net.NetworkInformation;
using Microsoft.AspNetCore.Mvc;
using Newtonsoft.Json;

namespace WebApplication1.Controllers
{
    public class HomeController : Controller
    {
        public IActionResult GetInterfaceInfo()
        {
            var connectionLocalAddress = HttpContext.Connection.LocalIpAddress;
            var connectionLocalInterface = NetworkInterface.GetAllNetworkInterfaces()
                .Where(iface => iface.GetIPProperties().UnicastAddresses.Any(unicastInfo => unicastInfo.Address.Equals(connectionLocalAddress)))
                .SingleOrDefault();
            var results = new {
                NetworkInterface = connectionLocalInterface,
                IPInterfaceProperties = connectionLocalInterface?.GetIPProperties(),
                IPInterfaceStatistics = connectionLocalInterface?.GetIPStatistics(),
                IPv4InterfaceStatistics = connectionLocalInterface?.GetIPv4Statistics()
            };

            return Json(
                results,
                new JsonSerializerSettings() {
                    ContractResolver = new IgnorePropertyExceptionsResolver(),
                    Formatting = Formatting.Indented
                }
            );
        }
    }
}

访问

http://localhost:12345/Home/GetInterfaceInfo

然后生成

{
    "NetworkInterface": {
        "Id": "{01234567-ABCD-EF01-2345-6789ABCDEF01}",
        "Name": "Loopback Pseudo-Interface 1",
        "Description": "Software Loopback Interface 1",
        "NetworkInterfaceType": 24,
        "OperationalStatus": 1,
        "Speed": 1073741824,
        "IsReceiveOnly": false,
        "SupportsMulticast": true
    },
    "IPInterfaceProperties": {
        "IsDnsEnabled": false,
        "IsDynamicDnsEnabled": true,
        "DnsSuffix": "",
        "AnycastAddresses": [],
        "UnicastAddresses": [
            {
                "Address": {
                    "AddressFamily": 23,
                    "ScopeId": 0,
                    "IsIPv6Multicast": false,
                    "IsIPv6LinkLocal": false,
                    "IsIPv6SiteLocal": false,
                    "IsIPv6Teredo": false,
                    "IsIPv4MappedToIPv6": false
                },
                "IPv4Mask": {
                    "AddressFamily": 2,
                    "IsIPv6Multicast": false,
                    "IsIPv6LinkLocal": false,
                    "IsIPv6SiteLocal": false,
                    "IsIPv6Teredo": false,
                    "IsIPv4MappedToIPv6": false,
                    "Address": 0
                },
                "PrefixLength": 128,
                "IsTransient": false,
                "IsDnsEligible": false,
                "PrefixOrigin": 2,
                "SuffixOrigin": 2,
                "DuplicateAddressDetectionState": 4,
                "AddressValidLifetime": 4294967295,
                "AddressPreferredLifetime": 4294967295,
                "DhcpLeaseLifetime": 1542939
            },
            {
                "Address": {
                    "AddressFamily": 2,
                    "IsIPv6Multicast": false,
                    "IsIPv6LinkLocal": false,
                    "IsIPv6SiteLocal": false,
                    "IsIPv6Teredo": false,
                    "IsIPv4MappedToIPv6": false,
                    "Address": 16777343
                },
                "IPv4Mask": {
                    "AddressFamily": 2,
                    "IsIPv6Multicast": false,
                    "IsIPv6LinkLocal": false,
                    "IsIPv6SiteLocal": false,
                    "IsIPv6Teredo": false,
                    "IsIPv4MappedToIPv6": false,
                    "Address": 255
                },
                "PrefixLength": 8,
                "IsTransient": false,
                "IsDnsEligible": false,
                "PrefixOrigin": 2,
                "SuffixOrigin": 2,
                "DuplicateAddressDetectionState": 4,
                "AddressValidLifetime": 4294967295,
                "AddressPreferredLifetime": 4294967295,
                "DhcpLeaseLifetime": 1542939
            }
        ],
        "MulticastAddresses": [
            {
                "Address": {
                    "AddressFamily": 23,
                    "ScopeId": 1,
                    "IsIPv6Multicast": true,
                    "IsIPv6LinkLocal": false,
                    "IsIPv6SiteLocal": false,
                    "IsIPv6Teredo": false,
                    "IsIPv4MappedToIPv6": false
                },
                "IsTransient": false,
                "IsDnsEligible": false,
                "PrefixOrigin": 0,
                "SuffixOrigin": 0,
                "DuplicateAddressDetectionState": 0,
                "AddressValidLifetime": 0,
                "AddressPreferredLifetime": 0,
                "DhcpLeaseLifetime": 0
            },
            {
                "Address": {
                    "AddressFamily": 2,
                    "IsIPv6Multicast": false,
                    "IsIPv6LinkLocal": false,
                    "IsIPv6SiteLocal": false,
                    "IsIPv6Teredo": false,
                    "IsIPv4MappedToIPv6": false,
                    "Address": 4211081199
                },
                "IsTransient": false,
                "IsDnsEligible": false,
                "PrefixOrigin": 0,
                "SuffixOrigin": 0,
                "DuplicateAddressDetectionState": 0,
                "AddressValidLifetime": 0,
                "AddressPreferredLifetime": 0,
                "DhcpLeaseLifetime": 0
            }
        ],
        "DnsAddresses": [
            {
                "AddressFamily": 23,
                "ScopeId": 1,
                "IsIPv6Multicast": false,
                "IsIPv6LinkLocal": false,
                "IsIPv6SiteLocal": true,
                "IsIPv6Teredo": false,
                "IsIPv4MappedToIPv6": false
            },
            {
                "AddressFamily": 23,
                "ScopeId": 1,
                "IsIPv6Multicast": false,
                "IsIPv6LinkLocal": false,
                "IsIPv6SiteLocal": true,
                "IsIPv6Teredo": false,
                "IsIPv4MappedToIPv6": false
            },
            {
                "AddressFamily": 23,
                "ScopeId": 1,
                "IsIPv6Multicast": false,
                "IsIPv6LinkLocal": false,
                "IsIPv6SiteLocal": true,
                "IsIPv6Teredo": false,
                "IsIPv4MappedToIPv6": false
            }
        ],
        "GatewayAddresses": [],
        "DhcpServerAddresses": [],
        "WinsServersAddresses": []
    },
    "IPInterfaceStatistics": {
        "OutputQueueLength": 0,
        "BytesSent": 0,
        "BytesReceived": 0,
        "UnicastPacketsSent": 0,
        "UnicastPacketsReceived": 0,
        "NonUnicastPacketsSent": 0,
        "NonUnicastPacketsReceived": 0,
        "IncomingPacketsDiscarded": 0,
        "OutgoingPacketsDiscarded": 0,
        "IncomingPacketsWithErrors": 0,
        "OutgoingPacketsWithErrors": 0,
        "IncomingUnknownProtocolPackets": 0
    },
    "IPv4InterfaceStatistics": {
        "OutputQueueLength": 0,
        "BytesSent": 0,
        "BytesReceived": 0,
        "UnicastPacketsSent": 0,
        "UnicastPacketsReceived": 0,
        "NonUnicastPacketsSent": 0,
        "NonUnicastPacketsReceived": 0,
        "IncomingPacketsDiscarded": 0,
        "OutgoingPacketsDiscarded": 0,
        "IncomingPacketsWithErrors": 0,
        "OutgoingPacketsWithErrors": 0,
        "IncomingUnknownProtocolPackets": 0
    }
}

IgnorePropertyExceptionsResolver

类来自并看起来像这样

using System.Reflection;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;

namespace WebApplication1.Controllers
{
    internal class IgnorePropertyExceptionsResolver : DefaultContractResolver
    {
        protected override JsonProperty CreateProperty(MemberInfo member, MemberSerialization memberSerialization)
        {
            var jsonProperty = base.CreateProperty(member, memberSerialization);

            jsonProperty.ShouldSerialize = instance => {
                try
                {
                    var instanceProperty = (PropertyInfo) member;

                    if (instanceProperty.CanRead)
                    {
                        instanceProperty.GetValue(instance, null);

                        return true;
                    }
                }
                catch
                {
                }

                return false;
            };

            return jsonProperty;
        }
    }
}

我使用此类的原因是因为

results的集合属性中的一些IPAddress
对象。当访问它们的Address
属性时，IPInterfaceProperties

会引发异常，因此解析器只会忽略有问题的属性以使输出正常工作。当然，您将直接访问这些对象，而不是首先将它们转换为JSON，因此该类仅适用于此演示代码。

您可以使用获取连接的本地（服务器）端的IP地址，然后找到绑定了相同地址的实例

using System.Linq;
using System.Net.NetworkInformation;
using Microsoft.AspNetCore.Mvc;
using Newtonsoft.Json;

namespace WebApplication1.Controllers
{
    public class HomeController : Controller
    {
        public IActionResult GetInterfaceInfo()
        {
            var connectionLocalAddress = HttpContext.Connection.LocalIpAddress;
            var connectionLocalInterface = NetworkInterface.GetAllNetworkInterfaces()
                .Where(iface => iface.GetIPProperties().UnicastAddresses.Any(unicastInfo => unicastInfo.Address.Equals(connectionLocalAddress)))
                .SingleOrDefault();
            var results = new {
                NetworkInterface = connectionLocalInterface,
                IPInterfaceProperties = connectionLocalInterface?.GetIPProperties(),
                IPInterfaceStatistics = connectionLocalInterface?.GetIPStatistics(),
                IPv4InterfaceStatistics = connectionLocalInterface?.GetIPv4Statistics()
            };

            return Json(
                results,
                new JsonSerializerSettings() {
                    ContractResolver = new IgnorePropertyExceptionsResolver(),
                    Formatting = Formatting.Indented
                }
            );
        }
    }
}

访问

http://localhost:12345/Home/GetInterfaceInfo

然后生成

{
    "NetworkInterface": {
        "Id": "{01234567-ABCD-EF01-2345-6789ABCDEF01}",
        "Name": "Loopback Pseudo-Interface 1",
        "Description": "Software Loopback Interface 1",
        "NetworkInterfaceType": 24,
        "OperationalStatus": 1,
        "Speed": 1073741824,
        "IsReceiveOnly": false,
        "SupportsMulticast": true
    },
    "IPInterfaceProperties": {
        "IsDnsEnabled": false,
        "IsDynamicDnsEnabled": true,
        "DnsSuffix": "",
        "AnycastAddresses": [],
        "UnicastAddresses": [
            {
                "Address": {
                    "AddressFamily": 23,
                    "ScopeId": 0,
                    "IsIPv6Multicast": false,
                    "IsIPv6LinkLocal": false,
                    "IsIPv6SiteLocal": false,
                    "IsIPv6Teredo": false,
                    "IsIPv4MappedToIPv6": false
                },
                "IPv4Mask": {
                    "AddressFamily": 2,
                    "IsIPv6Multicast": false,
                    "IsIPv6LinkLocal": false,
                    "IsIPv6SiteLocal": false,
                    "IsIPv6Teredo": false,
                    "IsIPv4MappedToIPv6": false,
                    "Address": 0
                },
                "PrefixLength": 128,
                "IsTransient": false,
                "IsDnsEligible": false,
                "PrefixOrigin": 2,
                "SuffixOrigin": 2,
                "DuplicateAddressDetectionState": 4,
                "AddressValidLifetime": 4294967295,
                "AddressPreferredLifetime": 4294967295,
                "DhcpLeaseLifetime": 1542939
            },
            {
                "Address": {
                    "AddressFamily": 2,
                    "IsIPv6Multicast": false,
                    "IsIPv6LinkLocal": false,
                    "IsIPv6SiteLocal": false,
                    "IsIPv6Teredo": false,
                    "IsIPv4MappedToIPv6": false,
                    "Address": 16777343
                },
                "IPv4Mask": {
                    "AddressFamily": 2,
                    "IsIPv6Multicast": false,
                    "IsIPv6LinkLocal": false,
                    "IsIPv6SiteLocal": false,
                    "IsIPv6Teredo": false,
                    "IsIPv4MappedToIPv6": false,
                    "Address": 255
                },
                "PrefixLength": 8,
                "IsTransient": false,
                "IsDnsEligible": false,
                "PrefixOrigin": 2,
                "SuffixOrigin": 2,
                "DuplicateAddressDetectionState": 4,
                "AddressValidLifetime": 4294967295,
                "AddressPreferredLifetime": 4294967295,
                "DhcpLeaseLifetime": 1542939
            }
        ],
        "MulticastAddresses": [
            {
                "Address": {
                    "AddressFamily": 23,
                    "ScopeId": 1,
                    "IsIPv6Multicast": true,
                    "IsIPv6LinkLocal": false,
                    "IsIPv6SiteLocal": false,
                    "IsIPv6Teredo": false,
                    "IsIPv4MappedToIPv6": false
                },
                "IsTransient": false,
                "IsDnsEligible": false,
                "PrefixOrigin": 0,
                "SuffixOrigin": 0,
                "DuplicateAddressDetectionState": 0,
                "AddressValidLifetime": 0,
                "AddressPreferredLifetime": 0,
                "DhcpLeaseLifetime": 0
            },
            {
                "Address": {
                    "AddressFamily": 2,
                    "IsIPv6Multicast": false,
                    "IsIPv6LinkLocal": false,
                    "IsIPv6SiteLocal": false,
                    "IsIPv6Teredo": false,
                    "IsIPv4MappedToIPv6": false,
                    "Address": 4211081199
                },
                "IsTransient": false,
                "IsDnsEligible": false,
                "PrefixOrigin": 0,
                "SuffixOrigin": 0,
                "DuplicateAddressDetectionState": 0,
                "AddressValidLifetime": 0,
                "AddressPreferredLifetime": 0,
                "DhcpLeaseLifetime": 0
            }
        ],
        "DnsAddresses": [
            {
                "AddressFamily": 23,
                "ScopeId": 1,
                "IsIPv6Multicast": false,
                "IsIPv6LinkLocal": false,
                "IsIPv6SiteLocal": true,
                "IsIPv6Teredo": false,
                "IsIPv4MappedToIPv6": false
            },
            {
                "AddressFamily": 23,
                "ScopeId": 1,
                "IsIPv6Multicast": false,
                "IsIPv6LinkLocal": false,
                "IsIPv6SiteLocal": true,
                "IsIPv6Teredo": false,
                "IsIPv4MappedToIPv6": false
            },
            {
                "AddressFamily": 23,
                "ScopeId": 1,
                "IsIPv6Multicast": false,
                "IsIPv6LinkLocal": false,
                "IsIPv6SiteLocal": true,
                "IsIPv6Teredo": false,
                "IsIPv4MappedToIPv6": false
            }
        ],
        "GatewayAddresses": [],
        "DhcpServerAddresses": [],
        "WinsServersAddresses": []
    },
    "IPInterfaceStatistics": {
        "OutputQueueLength": 0,
        "BytesSent": 0,
        "BytesReceived": 0,
        "UnicastPacketsSent": 0,
        "UnicastPacketsReceived": 0,
        "NonUnicastPacketsSent": 0,
        "NonUnicastPacketsReceived": 0,
        "IncomingPacketsDiscarded": 0,
        "OutgoingPacketsDiscarded": 0,
        "IncomingPacketsWithErrors": 0,
        "OutgoingPacketsWithErrors": 0,
        "IncomingUnknownProtocolPackets": 0
    },
    "IPv4InterfaceStatistics": {
        "OutputQueueLength": 0,
        "BytesSent": 0,
        "BytesReceived": 0,
        "UnicastPacketsSent": 0,
        "UnicastPacketsReceived": 0,
        "NonUnicastPacketsSent": 0,
        "NonUnicastPacketsReceived": 0,
        "IncomingPacketsDiscarded": 0,
        "OutgoingPacketsDiscarded": 0,
        "IncomingPacketsWithErrors": 0,
        "OutgoingPacketsWithErrors": 0,
        "IncomingUnknownProtocolPackets": 0
    }
}

IgnorePropertyExceptionsResolver

类来自并看起来像这样

using System.Reflection;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;

namespace WebApplication1.Controllers
{
    internal class IgnorePropertyExceptionsResolver : DefaultContractResolver
    {
        protected override JsonProperty CreateProperty(MemberInfo member, MemberSerialization memberSerialization)
        {
            var jsonProperty = base.CreateProperty(member, memberSerialization);

            jsonProperty.ShouldSerialize = instance => {
                try
                {
                    var instanceProperty = (PropertyInfo) member;

                    if (instanceProperty.CanRead)
                    {
                        instanceProperty.GetValue(instance, null);

                        return true;
                    }
                }
                catch
                {
                }

                return false;
            };

            return jsonProperty;
        }
    }
}

我使用此类的原因是因为

results的集合属性中的一些IPAddress
对象。当访问它们的Address
属性时，IPInterfaceProperties

我考虑过“netstat”并链接到进程，然后通过远程客户端ip进行过滤（我确实有），但由于解析和执行的原因，速度会很慢，在Linux上不兼容（必须分析不同的输出）。我尝试启动一个新的UdpClient。正如Scott提到的，它不可靠，因为我们不知道Windows TCP/IP内核驱动程序将选择哪个NIC。我了解到，NIC决策算法似乎为以前使用的NIC上的同一进程提供了明确的优先级，因此它可能在大多数情况下都会工作，但我们另外，我想通过创建一个UdpClient来欺骗NIC平衡算法，该UdpClient的目标IP与远程用户相同（我可以通过检查HTTP请求轻松获取）。这将意味着同一进程上的套接字连接到同一远程IP。问题是，我不知道UdpClient构造函数在调用.connect（）之前是否真的选择了NIC或者它只是一个虚拟的默认NIC，可能会是这种情况，因为它非常快。而且，它可能会失去C#控制，这是由内核决定的。奇怪的是，MSFT没有一个接口公开正在使用哪个NIC。刚刚读完一些核心代码，UdpClient似乎正在构造一个据我所知，Windows TCP/IP驱动程序在创建套接字时选择NIC，这基本上意味着创建一个UdpClient实例，指向远程IP（我们从HTTP请求中知道）will很有可能会被分配到为传入数据包选择的同一个NIC。仍然需要一些挖掘，但对大多数人来说似乎已经足够好了。使用and获取本地IP地址，然后将其与的结果进行匹配，是否会为您提供所需的信息？感谢您的建议，will会这样做，并将更新e、顺便说一句，HttpContext在Azure Functions runtime与.NET Core配合使用后是否可以工作？谢谢。我考虑过“netstat”并链接到进程，然后通过远程客户端ip（我确实有）进行过滤，但由于解析和执行的原因，速度会很慢，在Linux上不兼容（必须解析不同的输出）。我尝试启动一个新的UdpClient。正如Scott提到的，它不可靠，因为我们不知道Windows TCP/IP内核驱动程序将选择哪个NIC。我了解到，NIC决策算法似乎为以前使用的NIC上的同一进程提供了明确的优先级，因此它可能在大多数情况下都会工作，但我们另外，我想通过创建一个UdpClient来欺骗NIC平衡算法，该UdpClient的目标IP与远程用户相同（我可以通过检查HTTP请求轻松获取）。这将意味着同一进程上的套接字连接到同一远程IP。问题是，我不知道UdpClient构造函数在调用.connect（）之前是否真的选择了NIC或者它只是一个虚拟的默认NIC，可能会是这种情况，因为它非常快。而且，它可能会失去C#控制，这是由内核决定的。奇怪的是，MSFT没有一个接口公开正在使用哪个NIC。刚刚读完一些核心代码，UdpClient似乎正在构造一个据我所知，Windows TCP/IP驱动程序在创建套接字时选择NIC，这基本上意味着创建一个UdpClient实例，指向远程IP（我们从HTTP请求中知道）will很有可能会被分配到为传入数据包选择的同一个NIC。仍然需要一些挖掘，但对大多数人来说似乎已经足够好了。使用and获取本地IP地址，然后将其与的结果进行匹配，是否会为您提供所需的信息？感谢您的建议，will会这样做，并将更新e、顺便说一句，HttpContext与.NET Core一起使用后，是否可以用于Azure Functions runtime？谢谢。感谢Bacon，问题是我正在尝试创建一个全局帮助器类来记录一些网络数据。HttpContext在Azure Functions runtime中不存在，因此我