iOS NetworkExtension let tunFd = self?.packetFlow.value(forKeyPath: “socket.fileDescriptor“) as! Int
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ios进行VPN链接获取tunfd
iOS15无法正常创建连接，14正常！
解决代码如下
if #available(iOS 15, *)
var buf = [CChar](repeating: 0, count: Int(IFNAMSIZ))
let utunPrefix = "utun".utf8CString.dropLast()
return (0...1024).first (_ fd: Int32) -> Bool in
var len = socklen_t(buf.count)
return getsockopt(fd, 2, 2, &buf, &len) == 0 && buf.starts(with: utunPrefix)
else
return self.packetFlow.value(forKeyPath: "socket.fileDescriptor") as? Int32
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iOS NetworkExtension let tunFd = self?.packetFlow.value(forKeyPath: “socket.fileDescriptor“) as! Int
iOS NetworkExtension let tunFd = self?.packetFlow.value(forKeyPath: “socket.fileDescriptor“) as! Int
在 xcode 中添加 NetworkExtension.Framework