[PATCH] wpa_supplicant: Modify bgscan based roaming behaviour.

Jouni Malinen j
Mon Sep 26 04:30:59 PDT 2011

On Mon, Aug 29, 2011 at 02:26:45PM +0530, Vivek Natarajan wrote:
> Cancel background scan based roaming behavior if the driver
> is capable of handling roaming in the firmware. For fullmac
> drivers like ath6kl, the roaming logic is handled in the
> firmware and for supplicant to initiate roam, the station
> has to disconnect completely and then reconnect with the
> new AP which takes a longer time without preauth.
> Currently, if the supplicant also tries to roam, all requests
> are rejected by cfg80211 resulting in a spam of log.

I applied the driver.h and driver_nl80211.c parts to get the new driver
flag for this, but the change to events.c did not look correct, so I
left that out. wpa_supplicant will need quite a bit more changes to be
able to work in ap_scan=2 like way in the default ap_scan=1 mode when
the driver indicates this BSS-selection-in-driver(firmware) capability.
Those changes will take care of not even getting to the
wpa_supplicant_connect(), so there should be no need to modify it in the
way done in this patch.

Jouni Malinen                                            PGP id EFC895FA

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