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<p>Hi,</p>
<p> </p>
<p>I was studying through hostap/supplicant version 1.0. I see that WPA_INTERFACE_DISABLED<a></a>, is one of the newer states added for handling the rfkill<a></a> operations on the drivers/devices.</p>
<p> </p>
<p>When, supplicant moves to WPA_INTERFACE_DISABLED<a></a>, operations or events - SCAN, RECONNECT and REASSOCIATE<a></a> are not handled and replied with error status. This is is<a></a> understandable when rfkill<a></a> indeed happens and the RF<a></a> and
thus the IP interface gets disabled.</p>
<p> </p>
<p>However, there can be scenarios where rfkill<a></a> is not forced and still a simple ip<a></a> or net down is called on the interface (for example having been disassociated and hence there is not possible data link etc applications can call a ip<a></a> or
net down). This sends a link change notification to the supplicant which (in rtm_newlink<a></a> handling) moves the state to WPA_INTERFACE_DISABLED<a></a> as per the new state changes.</p>
<p> </p>
<p>Now, if the application<a></a> wanted to send a scan command to supplicant, then it would not be possible because the<a></a> supplicant would reject it.</p>
<p> </p>
<p>If the supplicant expects that the state should always be moved to WPA_INTERFACE_ENABLED<a></a> before SCAN, RECONNECT, REASSOSCIATE?<a></a> Wouldn't that mean, the ip<a></a> or net up needs to be done even if the net traffic cannot be started? Would not
this mean providing a wrong status to the application?</p>
<p> </p>
<p>I am a little confused. I hope some one can throw some light.</p>
<p> </p>
<p>Thanks in advance.</p>
<p> </p>
<p>Best regards,</p>
<p>Madhvapathi Sriram</p>
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