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mac80211: Add 802.11h CSA support

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Move to the advertised channel on reception of
a CSA element. This is needed for 802.11h compliance.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith
2009-01-06 09:28:37 +05:30
committed by John W. Linville
parent b522ed56ef
commit c481ec9705
5 changed files with 122 additions and 1 deletions
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13
net/mac80211/mlme.c
View File

@@ -1629,6 +1629,13 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
if (!bss)
return;
if (elems->ch_switch_elem && (elems->ch_switch_elem_len == 3) &&
(memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0)) {
struct ieee80211_channel_sw_ie *sw_elem =
(struct ieee80211_channel_sw_ie *)elems->ch_switch_elem;
ieee80211_process_chanswitch(sdata, sw_elem, bss);
}
/* was just updated in ieee80211_bss_info_update */
beacon_timestamp = bss->timestamp;
@@ -1765,6 +1772,9 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0)
return;
if (rx_status->freq != local->hw.conf.channel->center_freq)
return;
ieee80211_sta_wmm_params(local, ifsta, elems.wmm_param,
elems.wmm_param_len);
@@ -2425,8 +2435,11 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
ifsta = &sdata->u.sta;
INIT_WORK(&ifsta->work, ieee80211_sta_work);
INIT_WORK(&ifsta->chswitch_work, ieee80211_chswitch_work);
setup_timer(&ifsta->timer, ieee80211_sta_timer,
(unsigned long) sdata);
setup_timer(&ifsta->chswitch_timer, ieee80211_chswitch_timer,
(unsigned long) sdata);
skb_queue_head_init(&ifsta->skb_queue);
ifsta->capab = WLAN_CAPABILITY_ESS;