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Set driver Probe Response template for AP mode offload

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Configure a Probe Response template for drivers that support it. The
template is updated when the Beacon template is updated.

The Probe Response template is propagated to the driver via the set_ap()
callback.

Signed-hostap: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
This commit is contained in:
Arik Nemtsov 2011-12-10 20:58:59 +02:00 committed by Jouni Malinen
parent eacc6b2478
commit 5b99e21a14
2 changed files with 55 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
src/ap/beacon.c
View File

@ -436,6 +436,42 @@ void handle_probe_req(struct hostapd_data *hapd,
elems.ssid_len == 0 ? "broadcast" : "our");
}
static u8 * hostapd_probe_resp_offloads(struct hostapd_data *hapd,
size_t *resp_len)
{
/* check probe response offloading caps and print warnings */
if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD))
return NULL;
#ifdef CONFIG_WPS
if (hapd->conf->wps_state && hapd->wps_probe_resp_ie &&
(!(hapd->iface->probe_resp_offloads &
(WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS |
WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2))))
wpa_printf(MSG_WARNING, "Device is trying to offload WPS "
"Probe Response while not supporting this");
#endif /* CONFIG_WPS */
#ifdef CONFIG_P2P
if ((hapd->conf->p2p & P2P_ENABLED) && hapd->p2p_probe_resp_ie &&
!(hapd->iface->probe_resp_offloads &
WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P))
wpa_printf(MSG_WARNING, "Device is trying to offload P2P "
"Probe Response while not supporting this");
#endif /* CONFIG_P2P */
if (hapd->conf->interworking &&
!(hapd->iface->probe_resp_offloads &
WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING))
wpa_printf(MSG_WARNING, "Device is trying to offload "
"Interworking Probe Response while not supporting "
"this");
/* Generate a Probe Response template for the non-P2P case */
return hostapd_gen_probe_resp(hapd, NULL, NULL, 0, resp_len);
}
#endif /* NEED_AP_MLME */
@ -444,6 +480,8 @@ void ieee802_11_set_beacon(struct hostapd_data *hapd)
struct ieee80211_mgmt *head = NULL;
u8 *tail = NULL;
size_t head_len = 0, tail_len = 0;
u8 *resp = NULL;
size_t resp_len = 0;
struct wpa_driver_ap_params params;
struct wpabuf *beacon, *proberesp, *assocresp;
#ifdef NEED_AP_MLME
@ -570,6 +608,7 @@ void ieee802_11_set_beacon(struct hostapd_data *hapd)
tail_len = tailpos > tail ? tailpos - tail : 0;
resp = hostapd_probe_resp_offloads(hapd, &resp_len);
#endif /* NEED_AP_MLME */
os_memset(&params, 0, sizeof(params));
@ -577,6 +616,8 @@ void ieee802_11_set_beacon(struct hostapd_data *hapd)
params.head_len = head_len;
params.tail = tail;
params.tail_len = tail_len;
params.proberesp = resp;
params.proberesp_len = resp_len;
params.dtim_period = hapd->conf->dtim_period;
params.beacon_int = hapd->iconf->beacon_int;
params.basic_rates = hapd->iconf->basic_rates;
@ -635,6 +676,7 @@ void ieee802_11_set_beacon(struct hostapd_data *hapd)
os_free(tail);
os_free(head);
os_free(resp);
}

13
src/drivers/driver.h
View File

@ -563,6 +563,19 @@ struct wpa_driver_ap_params {
*/
int *basic_rates;
/**
* proberesp - Probe Response template
*
* This is used by drivers that reply to Probe Requests internally in
* AP mode and require the full Probe Response template.
*/
const u8 *proberesp;
/**
* proberesp_len - Length of the proberesp buffer in octets
*/
size_t proberesp_len;
/**
* ssid - The SSID to use in Beacon/Probe Response frames
*/