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AP: Consider U-APSD driver support

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Check whether the driver advertises support for U-APSD
in AP mode, and evaluate wmm_uapsd only in this case.

Signed-off-by: Eliad Peller <eliad@wizery.com>
This commit is contained in:
Eliad Peller 2011-12-17 11:45:53 +02:00 committed by Jouni Malinen
parent a97bde0af4
commit 70619a5d8a
3 changed files with 7 additions and 1 deletions
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3
src/ap/wmm.c
View File

@ -72,7 +72,8 @@ u8 * hostapd_eid_wmm(struct hostapd_data *hapd, u8 *eid)
wmm->version = WMM_VERSION; wmm->version = WMM_VERSION;
wmm->qos_info = hapd->parameter_set_count & 0xf; wmm->qos_info = hapd->parameter_set_count & 0xf;
if (hapd->conf->wmm_uapsd) if (hapd->conf->wmm_uapsd &&
(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_UAPSD))
wmm->qos_info |= 0x80; wmm->qos_info |= 0x80;
wmm->reserved = 0; wmm->reserved = 0;

2
src/drivers/driver.h
View File

@ -774,6 +774,8 @@ struct wpa_driver_capa {
#define WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP 0x00100000 #define WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP 0x00100000
/* Driver indicates support for Probe Response offloading in AP mode */ /* Driver indicates support for Probe Response offloading in AP mode */
#define WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD 0x00200000 #define WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD 0x00200000
/* Driver supports U-APSD in AP mode */
#define WPA_DRIVER_FLAGS_AP_UAPSD 0x00400000
unsigned int flags; unsigned int flags;
int max_scan_ssids; int max_scan_ssids;

3
src/drivers/driver_nl80211.c
View File

@ -2434,6 +2434,9 @@ broken_combination:
/* default to 5000 since early versions of mac80211 don't set it */ /* default to 5000 since early versions of mac80211 don't set it */
capa->max_remain_on_chan = 5000; capa->max_remain_on_chan = 5000;
if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
if (tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]) if (tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION])
capa->max_remain_on_chan = capa->max_remain_on_chan =
nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]); nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);