OCT 1. 检查ICS创建是，windows操作系统是否自动对隧道网卡设置了不合理的IP地址。

NetTunnelSDK/UserManager.cpp

@@ -185,12 +185,17 @@ int LocalWireGuardControl(bool isStart, bool setPrivateMode) {
                 return -ERR_NET_WIREGUARD_ICS;
             }
 
-            // 重设隧道 IP 地址
             GetIpV4InfoFromCIDR(GetGlobalCfgInfo()->userCfg.cliConfig.cliAddress, &ipInfo);
+
+            // 检查 ICS 是否自动添加了其它非法 IP 地址
+            if((ret = VerifyInterfaceIpAddr(ifWireGuardIndex, ipInfo.ip, ipInfo.netmask, 1)) != ERR_SUCCESS) {
+                SPDLOG_WARN(TEXT("Check Windows automatic set another ip to wireguard network interface, force set to {0}/{1}"), ipInfo.ip, ipInfo.netmask);
+                // 重设隧道 IP 地址            
                 if ((ret = SetInterfaceIpAddressWMI(GetGlobalCfgInfo()->userCfg.userName, ipInfo.ip, ipInfo.netmask)) != ERR_SUCCESS) {
                     SPDLOG_ERROR(TEXT("Call SetInterfaceIpAddressWMI error: {0}"), ret);
                     return ret;
                 }
+            }            
 
             SPDLOG_INFO(TEXT("Net Share Service Work now on ICS mode: {0}"), GetGlobalCfgInfo()->userCfg.userName);
         } else if (GetCurrentNetShareMode() == NAT_SHARE_MODE) {

NetTunnelSDK/include/network.h

@@ -7,6 +7,21 @@ extern "C" {
 // we need to export the C interface
 #endif
 
+/**
+ * @brief 校验接口 IP 地址
+ * @param ifIndex 网卡索引
+ * @param pIpAddr 网卡 IP 地址
+ * @param pNetMask 网卡子网掩码 
+ * @param maxIpNumber 网卡最大允许的 IP 地址数
+ * @return 函数执行结果 0: 成功， 小于0 失败 @see USER_ERRNO
+ * - -ERR_INPUT_PARAMS 输入参数错误
+ * - -ERR_MALLOC_MEMORY 分配内存失败
+ * - -ERR_ITEM_UNEXISTS 找不到合适的网卡
+ * - -ERR_UN_SUPPORT 系统不支持该操作
+ * - ERR_SUCCESS 成功
+ */
+int VerifyInterfaceIpAddr(int ifIndex, const TCHAR *pIpAddr, const TCHAR *pNetMask, int maxIpNumber);
+
 /**
  * @brief 根据网卡 IP地址 获取网卡索引
  * @param[in] pIpAddr 网卡IP地址

NetTunnelSDK/network/network.cpp

@@ -26,6 +26,70 @@
 
 static NIC_CONTENT g_NetAdapterInfo[NET_CARD_MAX];
 
+int VerifyInterfaceIpAddr(int ifIndex, const TCHAR *pIpAddr, const TCHAR *pNetMask, int maxIpNumber) {
+    PIP_ADAPTER_INFO pAdapterInfo;
+    DWORD            dwRetVal;
+    ULONG            ulOutBufLen;
+    int              nIp       = 0;
+    bool             isMatched = false;
+
+    if (pIpAddr == nullptr || lstrlen(pIpAddr) == 0) {
+        SPDLOG_ERROR(TEXT("Input pIpAddr error: {0}"), pIpAddr);
+        return -ERR_INPUT_PARAMS;
+    }
+
+    ulOutBufLen  = sizeof(IP_ADAPTER_INFO);
+    pAdapterInfo = static_cast<IP_ADAPTER_INFO *>(HeapAlloc(GetProcessHeap(), 0, sizeof(IP_ADAPTER_INFO)));
+
+    if (pAdapterInfo == nullptr) {
+        SPDLOG_ERROR(TEXT("Error allocating memory needed to call GetAdaptersinfo"));
+        return -ERR_MALLOC_MEMORY;
+    }
+
+    if (GetAdaptersInfo(pAdapterInfo, &ulOutBufLen) == ERROR_BUFFER_OVERFLOW) {
+        HeapFree(GetProcessHeap(), 0, pAdapterInfo);
+        pAdapterInfo = static_cast<IP_ADAPTER_INFO *>(HeapAlloc(GetProcessHeap(), 0, ulOutBufLen));
+        if (pAdapterInfo == nullptr) {
+            SPDLOG_ERROR(TEXT("Error allocating memory needed to call GetAdaptersinfo\n"));
+            return -ERR_MALLOC_MEMORY;
+        }
+    }
+
+    if ((dwRetVal = GetAdaptersInfo(pAdapterInfo, &ulOutBufLen)) == NO_ERROR) {
+        PIP_ADAPTER_INFO pAdapter = pAdapterInfo;
+        while (pAdapter) {
+            PIP_ADDR_STRING ipAddressListPointer = &(pAdapter->IpAddressList);
+
+            while (ipAddressListPointer != nullptr) {
+                if (pAdapter->Index == static_cast<ULONG>(ifIndex)) {
+                    nIp++;
+                    if (StrCmp((ipAddressListPointer->IpAddress).String, pIpAddr) == 0 &&
+                        StrCmp((ipAddressListPointer->IpMask).String, pNetMask) == 0) {
+                        isMatched = true;
+                    }
+                }
+
+                ipAddressListPointer = ipAddressListPointer->Next;
+            }
+            pAdapter = pAdapter->Next;
+        }
+    } else {
+        SPDLOG_ERROR(TEXT("GetAdaptersInfo failed with error: {0}\n"), dwRetVal);
+        HeapFree(GetProcessHeap(), 0, pAdapterInfo);
+        return -ERR_SYS_CALL;
+    }
+
+    if (pAdapterInfo) {
+        HeapFree(GetProcessHeap(), 0, pAdapterInfo);
+    }
+
+    if (isMatched == true && nIp == maxIpNumber) {
+        return ERR_SUCCESS;
+    }
+
+    return -ERR_ITEM_UNEXISTS;
+}
+
 int GetInterfaceIfIndexByIpAddr(const TCHAR *pIpAddr, ULONG *pIfIndex) {
     PIP_ADAPTER_INFO pAdapterInfo;
     DWORD            dwRetVal;

TestNetTunnelSDK/TestNetTunnelSDK.cpp

@@ -55,7 +55,7 @@ public:
         Assert::IsNotNull(pInfo);
         Assert::AreNotEqual(0, size);
 
-        free(pInfo);
+        //free(pInfo);
     }
 
     TEST_METHOD(TestSetInterfaceIpAddressWMI) {
@@ -64,6 +64,11 @@ public:
     }
 
 #if 0
+    TEST_METHOD(TestVerifyInterfaceIpAddr) {
+        const int ret = VerifyInterfaceIpAddr(11, TEXT("10.10.10.251"), TEXT("255.255.255.0"), 2);
+        Assert::AreEqual(RET_OK, ret);
+    }
+
     TEST_METHOD(TestSetInterfaceIpAddressFromCIDR) {
         Assert::AreEqual(RET_OK, SetInterfaceIpAddressFromCIDR(TEXT("wg_server"), TEXT("192.168.100.250/24")));
     }