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nl80211: Make use of driver's capability to detect inactive stations 

When drivers advertise their capability to free up inactive
stations based on ap_max_inactivity, send the inactivity period
timeout to driver in NL80211_ATTR_INACTIVITY_TIMEOUT. This
introduces a WPA_DRIVER_FLAGS (WPA_DRIVER_FLAGS_INACTIVITY_TIMER)
so that the inactivity period will be sent only when this capability
bit is set.

Signed-hostap: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
This commit is contained in:
Vasanthakumar Thiagarajan 2012-03-27 20:45:23 +03:00 committed by Jouni Malinen
parent 07f53b8cc7
commit a0133ee1c9
3 changed files with 18 additions and 0 deletions
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1
src/ap/beacon.c
View File

@ -682,6 +682,7 @@ void ieee802_11_set_beacon(struct hostapd_data *hapd)
!is_zero_ether_addr(hapd->conf->hessid))
params.hessid = hapd->conf->hessid;
params.access_network_type = hapd->conf->access_network_type;
params.ap_max_inactivity = hapd->conf->ap_max_inactivity;
if (hostapd_drv_set_ap(hapd, &params))
wpa_printf(MSG_ERROR, "Failed to set beacon parameters");
hostapd_free_ap_extra_ies(hapd, beacon, proberesp, assocresp);

9
src/drivers/driver.h
View File

@ -707,6 +707,13 @@ struct wpa_driver_ap_params {
* enabled.
*/
u8 access_network_type;
/**
* ap_max_inactivity - Timeout in seconds to detect STA's inactivity
*
* This is used by driver which advertises this capability.
*/
int ap_max_inactivity;
};
/**
@ -790,6 +797,8 @@ struct wpa_driver_capa {
#define WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD 0x00200000
/* Driver supports U-APSD in AP mode */
#define WPA_DRIVER_FLAGS_AP_UAPSD 0x00400000
/* Driver supports inactivity timer in AP mode */
#define WPA_DRIVER_FLAGS_INACTIVITY_TIMER 0x00800000
unsigned int flags;
int max_scan_ssids;

8
src/drivers/driver_nl80211.c
View File

@ -2512,6 +2512,9 @@ broken_combination:
if (flags & NL80211_FEATURE_SK_TX_STATUS)
info->data_tx_status = 1;
if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
}
if (tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]) {
@ -5415,6 +5418,11 @@ static int wpa_driver_nl80211_set_ap(void *priv,
wpabuf_head(params->assocresp_ies));
}
if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) {
NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT,
params->ap_max_inactivity);
}
ret = send_and_recv_msgs(drv, msg, NULL, NULL);
if (ret) {
wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",