Hi,
I am working with an 802.11ad system, which uses PBSS. I am trying to
use wpa_supplicant to connect without scanning - for this, I'm using
ap_scan=2 as per the configuration below:
ctrl_interface=/var/run/wpa_supplicant
ap_scan=2
network={
ssid="myNetwork"
key_mgmt=NONE
pbss=1
frequency=62640
bssid=01:02:03:04:05:06
}
However, wpa_supplicant will not connect because it is not passing the
BSSID or frequency down to the driver.
From looking at hostap/wpa_supplicant/wpa_supplicant.c, I can see two
options:
a) Setting IBSS (I believe this is the wrong approach) as per the line:
if (ssid->mode == WPAS_MODE_IBSS && ssid->bssid_set &&
wpa_s->conf->ap_scan == 2)
b) Somehow setting the bss parameter (cwork->bss) in
wpas_start_assoc_cb. However from my understanding this is set when
wpa_supplicant scans (which I am trying to avoid, as I just want to
connect directly).
Is there any way round this without modifying wpa_supplicant? I have
done the following, which works (possibly could be combined with the
previous if statement..)
diff --git a/wpa_supplicant/wpa_supplicant.c
b/wpa_supplicant/wpa_supplicant.c
index d37a994f9..73f780145 100644
--- a/wpa_supplicant/wpa_supplicant.c
+++ b/wpa_supplicant/wpa_supplicant.c
@@ -3787,6 +3787,12 @@ static void wpas_start_assoc_cb(struct
wpa_radio_work *work, int deinit)
params.fixed_bssid = 1;
}
+ if (ssid->pbss == 1 && ssid->bssid_set && wpa_s->conf->ap_scan
== 2) {
+ params.bssid = ssid->bssid;
+ params.fixed_bssid = 1;
+ params.freq.freq = ssid->frequency;
+ }
+
/* Initial frequency for IBSS/mesh */
if ((ssid->mode == WPAS_MODE_IBSS || ssid->mode ==
WPAS_MODE_MESH) &&
ssid->frequency > 0 && params.freq.freq == 0)
Many thanks,
Chris
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