Load mac80211_hwsim
===========================================

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        Topics in this section,

                * :ref:`Learnings in this section <barelinux_x86-64_wi-fi_STA_and_AP_with_mac80211_hwsim_step1_1>`

                * :ref:`Version Info <barelinux_x86-64_wi-fi_STA_and_AP_with_mac80211_hwsim_step1_2>`

                * :ref:`Load mac80211_hwsim <barelinux_x86-64_wi-fi_STA_and_AP_with_mac80211_hwsim_step1_3>`

	                * :ref:`STEP 1: Stop existing Wireless Modules <barelinux_x86-64_wi-fi_STA_and_AP_with_mac80211_hwsim_step1_4>`

	                * :ref:`STEP 2: Insert the modules <barelinux_x86-64_wi-fi_STA_and_AP_with_mac80211_hwsim_step1_5>`

	                * :ref:`STEP 3: Check the loaded modules <barelinux_x86-64_wi-fi_STA_and_AP_with_mac80211_hwsim_step1_6>`

	                * :ref:`STEP 4: Check for interface name <barelinux_x86-64_wi-fi_STA_and_AP_with_mac80211_hwsim_step1_7>`



.. _barelinux_x86-64_wi-fi_STA_and_AP_with_mac80211_hwsim_step1_1:
  
.. tab-set::

   .. tab-item:: Learnings in this section

        * In this section, you are going to learn


        .. panels::
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                * How to load mac80211_hwsim with 3 radios

.. _barelinux_x86-64_wi-fi_STA_and_AP_with_mac80211_hwsim_step1_2:

.. tab-set::
 
    .. tab-item:: Version Info

        =============================== =======================================
        #                               Version
        =============================== =======================================
        Ubuntu                          Ubuntu 22.04 64 bit
        Linux Kernel                    6.5.0
        =============================== =======================================


.. _barelinux_x86-64_wi-fi_STA_and_AP_with_mac80211_hwsim_step1_3:
  
.. tab-set::

   .. tab-item:: How to load mac80211_hwsim


	.. _barelinux_x86-64_wi-fi_STA_and_AP_with_mac80211_hwsim_step1_4:
  
        .. tab-set::

           .. tab-item:: STEP 1: Stop existing Wireless Modules

                * Stop applications by running the commands below:

                .. code-block:: shell

                        test:~$ pwd
                        /home/test

                        test:~$ sudo systemctl stop NetworkManager.service

                        test:~$ sudo killall wpa_supplicant hostapd

                        test:~$ ps -N | grep -i wpa_supplicant

                        test:~$ ps -N | grep -i hostapd


		* Now, remove drivers by executing rmmod command as shown below:

                .. code-block:: shell

                        test:~$ sudo rmmod mac80211_hwsim
                        test:~$ sudo rmmod mac80211
                        test:~$ sudo rmmod libarc4
                        test:~$ sudo rmmod lib80211
                        test:~$ sudo rmmod cfg80211


	.. _barelinux_x86-64_wi-fi_STA_and_AP_with_mac80211_hwsim_step1_5:
  
        .. tab-set::

           .. tab-item:: STEP 2: Insert the modules

                .. code-block:: shell

                        test:~$ sudo insmod /lib/modules/$(uname -r)/kernel/net/wireless/cfg80211.ko
                        test:~$ sudo insmod /lib/modules/$(uname -r)/kernel/net/wireless/lib80211.ko
                        test:~$ sudo insmod /lib/modules/$(uname -r)/kernel/lib/crypto/libarc4.ko
                        test:~$ sudo insmod /lib/modules/$(uname -r)/kernel/net/mac80211/mac80211.ko
                        test:~$ sudo insmod /lib/modules/$(uname -r)/kernel/drivers/net/wireless/virtual/mac80211_hwsim.ko radios=3


	.. _barelinux_x86-64_wi-fi_STA_and_AP_with_mac80211_hwsim_step1_6:
  
        .. tab-set::

           .. tab-item:: STEP 3: Check the loaded modules

                .. code-block:: shell

                        test:~$ lsmod
                        Module                  Size  Used by
                        mac80211_hwsim        122880  0
                        mac80211             1720320  1 mac80211_hwsim
                        libarc4                12288  1 mac80211
                        lib80211               16384  0
                        cfg80211             1323008  2 mac80211_hwsim,mac80211


	.. _barelinux_x86-64_wi-fi_STA_and_AP_with_mac80211_hwsim_step1_7:
  
        .. tab-set::

           .. tab-item:: STEP 4: Check the output of iwconfig command

		* Check if 3 wlan interfaces are created

		* wlan0 will be used for ap

		* wlan1 will be used for station

		* wlan2 will be used as monitor mode to capture packets between station and ap

                .. code-block:: shell

                        test:~$ iwconfig
                        wlan0     IEEE 802.11  ESSID:off/any  
                                  Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm   
                                  Retry short limit:7   RTS thr:off   Fragment thr:off
                                  Power Management:off
          
                        wlan1     IEEE 802.11  ESSID:off/any  
                                  Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm   
                                  Retry short limit:7   RTS thr:off   Fragment thr:off
                                  Power Management:off
          
                        wlan2     IEEE 802.11  ESSID:off/any  
                                  Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm   
                                  Retry short limit:7   RTS thr:off   Fragment thr:off
                                  Power Management:off