wpa_supplicant ad-hoc settings
Thu Nov 18 05:13:29 PST 2010
I'm working with WLAN driver development and have more than once tried
to understand the idea behind the ad-hoc support implemented in the
My main concern is that wpa_supplicant discards scan results matching
the configured ad-hoc network because it is an IBSS network. Example config:
This will get the wpa_supplicant to scan for a matching network but the
right on is discarded with the following message (running with -d):
14: 3e:f3:e6:f4:27:9b ssid='ph-adhoc' wpa_ie_len=0 rsn_wlan0: key:
skip - IBSS (adhoc) network
In the later versions of wpa_supplicant it will go on and try to create
it's own network when no matches are found. In older versions it just
looped forever trying to find a matching network (which it actually does
but rejects it).
So, in my eyes the ad-hoc support in wpa_supplicant is, and has always
been, broken. Am I missing something?
For me the expected behavior would be:
wpa_supplicant does a complete scan and matches the result with the
network configuration. If match is found, wpa_supplicant then configures
SSID, BSSID, channel and operation mode so that the WLAN driver joins
the ad-hoc network. If no match is found, it configures SSID, channel
(from the frequency configuration directive) and operation mode so that
the WLAN driver can create it's own ad-hoc network.
Any input would be great!
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