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Wi Fi Direct For Mac

lucmimusmau1975 2020. 10. 8. 07:05



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Starting in Android 8.0, Android devices use randomized MAC addresses when probingfor new networks while not currently associated with a network. In Android9, you can enable a developer option (it'sdisabled by default) to cause the device to use a randomized MAC addresswhen connecting to a Wi-Fi network.

In Android 10, MAC randomization is enabled by defaultfor client mode, SoftAp, and Wi-Fi Direct.

For

MAC randomization prevents listeners from using MAC addresses to build a historyof device activity, thus increasing user privacy.

Additionally, MAC addresses are randomized as part ofWi-Fi Aware andWi-Fi RTT operations.

Wi-Fi Direct is a wireless technology that allows two devices to establish a direct, peer-to-peer Wi-Fi connection without requiring a wireless router. It’s like Bluetooth in that you need to introduce each Wi-Fi Direct capable device to the other and create a connection. This means users on the go can print documents, share data, sync files. F Activate Wi-Fi Direct on your mobile device (see your mobile device's user's guide for instructions) when Activate Wi-Fi Direct on other device and press OK. Press OK on your machine. This will start the Wi-Fi Direct setup. To cancel, press Back. G Do one of the following.

Wi-fi Direct For Mac

Implementation

To implement MAC randomization on your device:

  1. A new wireless networking system, Wi-Fi Direct, will soon help Mac users do all that and more. It lets any wireless device maintain a connection to a network base station while also communicating.
  2. EDUP USB WiFi Adapter 1300Mbps, USB 3.0 Wi-Fi Dongle 802.11 ac Wireless Network Adapter with Dual Band 2.4GHz/ 5.8GHz 5dBi Antenna for Desktop Windows XP/Vista / 7/8.1/10 / Mac 10.

  1. Work with a Wi-Fi chip vendor to implement the following HAL methods:

    • IWifiStaIface#setMacAddress: Configures the MAC address of theinterface. The default implementation brings the interface down, changesthe MAC address, and brings the interface back up.
    • IWifiStaIface#getFactoryMacAddress: Gets the factory MAC of wlan0using an ioctl call.
    • ISupplicantP2pIface#setMacRandomization: Sets P2P MAC randomizationon/off in the supplicant.

  2. Setconfig_wifi_connected_mac_randomization_supported to true in the Settings config.xml (this can be done in a devicecustom overlay).

    • This flag is used to control whether client-mode MAC randomization isenabled.

  3. Setconfig_wifi_p2p_mac_randomization_supported to true in the Settings config.xml (this can be done in a devicecustom overlay).

    • This flag is used to control whether Wi-Fi direct MAC randomization isenabled.

  4. Test your implementation using the methods described inValidation.

The System UI must:

  • Have an option to enable or disable randomization for each SSID.
  • Have MAC randomization enabled by default for all newly added networks.

Use thereference implementation of Settings UI to implement new prompts.

Direct

Devices running Android 9 or lower might not havesupport for Wi-Fi MAC randomization. When upgrading such devices to Android10, the Wi-Fi MAC randomization feature can be disabledby setting the WIFI_HIDL_FEATURE_DISABLE_AP_MAC_RANDOMIZATION flag to true inthe Wi-Fi vendor HAL make file.

Validation

To validate that the feature is working as intended, run both an integrationtest (ACTS) and a manual test.

To run an integration test, use the ACTS file,WifiMacRandomizationTest.py, located intools/test/connectivity/acts/tests/google/wifi, to verify that the device usesthe randomized MAC address and correctly stores the randomized MAC address foreach network.

To run a manual test:

Wifi Direct For Macbook

  1. Verify that MAC randomization is enabled on the device by checking thatconfig_wifi_connected_mac_randomization_supported is set to true in thedevice overlay.
  2. Connect to a Wi-Fi network.
  3. Tap the network to go to the Network details page. Verify that MACrandomization is turned on. Verify that the MAC address displayed is arandomized MAC, which has the locally generated bit set to 1 and themulticast bit set to 0.
  4. Turn MAC randomization off. Connect to the same network and verifythat the factory MAC is being used.
  5. Delete the network by tapping Forget on the Network details page.

  6. Connect to the same network and verify that the same randomized MACaddress is being used.

    Note: Randomized MAC addresses are generated per SSID and are persistent.

Turn On Wifi Direct Iphone

To test MAC randomization on a pre-Android 10 device(capable of supporting MAC randomization) upgrading to Android10 or higher:

  1. Have at least one saved network on a device runningAndroid 9 or lower.
  2. Flash the Android 10 system image.
  3. In the Wi-Fi picker, verify that MAC randomization is turned off for allsaved networks.
  4. Turn MAC randomization on. Connect to the same network and verifythat the randomized MAC is being used.

Wi Fi Direct Macbook Air

Note: You may experience up to a three-second delay when connecting to anetwork due to the driver flushing saved scan results when theinterface goes down. If this is the case, check with your siliconpartners to resolve the issue.



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