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Network Testing and Emulation Solutions

Automate The Creation of VAPs With The Realm Python Library

Goal: Create a python script to create VAPs

Using the realm.py library we will write a script that will allow us to automate the creation of VAPs. Requires LANForge 5.4.2
 
  1. Building a VAP

    1. VAPProfile
      1. The preferred method for creating a vap_profile is to use the factory method new_vap_profile() found in realm
        1. We will need to set the name of our vap using vap_profile.vap_name
          Example:
          vap_profile.vap_name = "TestNet"
        2. vap_profile.use_security(security_type, ssid, passwd) is the preferred method to use when setting the security type, ssid, and password variables
          Example:
          vap_profile.use_security("wpa2", "testNet", "testPass") 
        3. We can change the mode at any time before calling create() by modifying the vap_profile.mode variable. See here for available modes.
          Example
          vap_profile.mode = 1
        4. The channel to be used by the VAP can be set with the channel parameter of the create() method.
          Example:
          vap_profile.create(resource=1, radio="wiphy0", channel=36, up_=True)
  2. Bringing VAPs Up/Down

    1. vap_profile.admin_up() and vap_profile.admin_down() can be used to bring the VAP up or down, as necessary.
  3. Using TTLS

    1. TTLS setup requires a few pieces of information to work correctly. VAPProfile has a set_wifi_extra() method for setting the relevant variables. See here for the available options
    2. We will need a key management type (key_mgmt), an EAP method (eap), an EAP identity string (identity), an EAP password string (passwd), an 802.11u realm (realm), an 802.11u domain (domain), and an 802.11u HESSID (hessid)
      Example:
      key_mgmt="WPA-EAP"
      eap="TTLS"
      identity="testuser"
      passwd="testpasswd"
      realm="localhost.localdomain"
      domain="localhost.localdomain"
      hessid="00:00:00:00:00:01"
      We can then use these variables to call the set_wifi_extra() method
      Example:
      vap_profile.set_wifi_extra(key_mgmt, eap, identity, passwd, realm, domain, hessid)
  4. Cleaning Up

    1. vap_profile.cleanup() can be used to remove any VAPs that were created by the profile

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