NEVPNManager语言 - 如何在swift中跟踪VPN的数据使用情况

Question

我正在 swift 5 中开发一个 VPN 应用程序。我们正在使用NEVPNManager来处理所有VPN配置。我们想要的功能之一是在用户连接到我们的VPN时测量用户的使用数据。我们该怎么做呢？

Answer 1

NEVPNManager不提供任何满足您要求的方法。以下是个人在应用程序中使用的解决方案。

解决方案：搜索合适的网络接口并开始读取输入和输出字节。
en0 指无线网络 pdp_ip指蜂窝网络

+ (NSDictionary *) DataCounters{
struct ifaddrs *addrs;
const struct ifaddrs *cursor;
u_int32_t WiFiSent = 0;
u_int32_t WiFiReceived = 0;
u_int32_t WWANSent = 0;
u_int32_t WWANReceived = 0;
if (getifaddrs(&addrs) == 0)
{
cursor = addrs;
while (cursor != NULL)
{
if (cursor->ifa_addr->sa_family == AF_LINK)
{

// name of interfaces:
// en0 is WiFi
// pdp_ip0 is WWAN
NSString *name = [NSString stringWithFormat:@"%s",cursor->ifa_name];
if ([name hasPrefix:@"en"])
{
const struct if_data *ifa_data = (struct if_data *)cursor->ifa_data;
if(ifa_data != NULL)
{
WiFiSent += ifa_data->ifi_obytes;
WiFiReceived += ifa_data->ifi_ibytes;
}
}
if ([name hasPrefix:@"pdp_ip"])
{
const struct if_data *ifa_data = (struct if_data *)cursor->ifa_data;
if(ifa_data != NULL)
{
WWANSent += ifa_data->ifi_obytes;
WWANReceived += ifa_data->ifi_ibytes;
}
}
}
cursor = cursor->ifa_next;
}
freeifaddrs(addrs);
}
return @{DataCounterKeyWiFiSent:[NSNumber numberWithUnsignedInt:WiFiSent],
DataCounterKeyWiFiReceived:[NSNumber numberWithUnsignedInt:WiFiReceived],
DataCounterKeyWWANSent:[NSNumber numberWithUnsignedInt:WWANSent],
DataCounterKeyWWANReceived:[NSNumber numberWithUnsignedInt:WWANReceived]};}