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P2P: Use specific SSID in scan for provisioning step 

Since the P2P client learns the SSID of the group during GO Negotiation,
use the specific SSID in the Probe Request frames during the
provisioning step. This helps in avoiding unnecessary Probe Response
frames from other P2P GOs or APs.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2012-02-29 00:02:34 +02:00 committed by Jouni Malinen
parent 360182ed7c
commit a21c05db23
1 changed files with 14 additions and 0 deletions
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14
wpa_supplicant/scan.c
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@ -512,6 +512,17 @@ static void wpa_supplicant_scan(void *eloop_ctx, void *timeout_ctx)
}
}
#ifdef CONFIG_P2P
if (wpa_s->p2p_in_provisioning && wpa_s->go_params) {
wpa_printf(MSG_DEBUG, "P2P: Use specific SSID for scan during "
"P2P provisioning");
params.ssids[0].ssid = wpa_s->go_params->ssid;
params.ssids[0].ssid_len = wpa_s->go_params->ssid_len;
params.num_ssids = 1;
goto ssid_list_set;
}
#endif /* CONFIG_P2P */
/* Find the starting point from which to continue scanning */
ssid = wpa_s->conf->ssid;
if (wpa_s->prev_scan_ssid != WILDCARD_SSID_SCAN) {
@ -607,6 +618,9 @@ static void wpa_supplicant_scan(void *eloop_ctx, void *timeout_ctx)
wpa_dbg(wpa_s, MSG_DEBUG, "Starting AP scan for wildcard "
"SSID");
}
#ifdef CONFIG_P2P
ssid_list_set:
#endif /* CONFIG_P2P */
wpa_supplicant_optimize_freqs(wpa_s, &params);
extra_ie = wpa_supplicant_extra_ies(wpa_s, &params);