如何通过NetworkManager D-Bus API指定隐藏ESSID进行WiFi扫描？

Hey there! I’ve got you covered on this. The RequestScan method’s a{sv} parameter is a dictionary of string keys mapped to variant values, and there’s a specific key you need to use to target hidden SSIDs directly.

Here’s how to adjust your code to scan for a specific hidden ESSID:

device_list = NetworkManager.NetworkManager.GetDevices()
for device in device_list:
    if device.DeviceType == 2:  # Identify WiFi devices
        # Define scan parameters with your target hidden SSID
        scan_params = {
            "hidden-ssids": ["YourTargetHiddenESSID"]
        }
        device.RequestScan(scan_params)

Quick breakdown: #

• The key hidden-ssids tells NetworkManager to actively probe for the specified hidden networks (instead of only detecting broadcasted SSIDs).
• The value is an array of strings—you can add multiple hidden SSIDs here if you need to scan for more than one, like ["HiddenNetwork1", "HiddenNetwork2"].

A couple of quick tips to keep in mind:

• Ensure your app has the right permissions to interact with NetworkManager’s D-Bus interface (this usually means running with appropriate privileges, or having polkit rules configured to allow your user access).
• Some systems might require the WiFi device to be idle (not connected to another network) for the scan to execute properly, though NetworkManager typically handles this automatically.

内容的提问来源于stack exchange，提问作者Thomas Kostas