mac80211: add unified BSS configuration
This patch (based on Ron Rindjunsky's) creates a framework for
a unified way to pass BSS configuration to drivers that require
the information, e.g. for implementing power save mode.
This patch introduces new ieee80211_bss_conf structure that is
passed to the driver via the new bss_info_changed() callback
when the BSS configuration changes.
This new BSS configuration infrastructure adds the following
new features:
* drivers are notified of their association AID
* drivers are notified of association status
and replaces the erp_ie_changed() callback. The patch also does
the relevant driver updates for the latter change.
Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index b1e7d17..866eb80 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -313,48 +313,42 @@
}
-static void ieee80211_handle_erp_ie(struct net_device *dev, u8 erp_value)
+static u32 ieee80211_handle_erp_ie(struct ieee80211_sub_if_data *sdata,
+ u8 erp_value)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf;
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- int use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0;
- int preamble_mode = (erp_value & WLAN_ERP_BARKER_PREAMBLE) != 0;
- u8 changes = 0;
+ bool use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0;
+ bool preamble_mode = (erp_value & WLAN_ERP_BARKER_PREAMBLE) != 0;
DECLARE_MAC_BUF(mac);
+ u32 changed = 0;
- if (use_protection != !!(sdata->flags & IEEE80211_SDATA_USE_PROTECTION)) {
+ if (use_protection != bss_conf->use_cts_prot) {
if (net_ratelimit()) {
printk(KERN_DEBUG "%s: CTS protection %s (BSSID="
"%s)\n",
- dev->name,
+ sdata->dev->name,
use_protection ? "enabled" : "disabled",
print_mac(mac, ifsta->bssid));
}
- if (use_protection)
- sdata->flags |= IEEE80211_SDATA_USE_PROTECTION;
- else
- sdata->flags &= ~IEEE80211_SDATA_USE_PROTECTION;
- changes |= IEEE80211_ERP_CHANGE_PROTECTION;
+ bss_conf->use_cts_prot = use_protection;
+ changed |= BSS_CHANGED_ERP_CTS_PROT;
}
- if (preamble_mode != !(sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE)) {
+ if (preamble_mode != bss_conf->use_short_preamble) {
if (net_ratelimit()) {
printk(KERN_DEBUG "%s: switched to %s barker preamble"
" (BSSID=%s)\n",
- dev->name,
+ sdata->dev->name,
(preamble_mode == WLAN_ERP_PREAMBLE_SHORT) ?
"short" : "long",
print_mac(mac, ifsta->bssid));
}
- if (preamble_mode)
- sdata->flags &= ~IEEE80211_SDATA_SHORT_PREAMBLE;
- else
- sdata->flags |= IEEE80211_SDATA_SHORT_PREAMBLE;
- changes |= IEEE80211_ERP_CHANGE_PREAMBLE;
+ bss_conf->use_short_preamble = preamble_mode;
+ changed |= BSS_CHANGED_ERP_PREAMBLE;
}
- if (changes)
- ieee80211_erp_info_change_notify(dev, changes);
+ return changed;
}
int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
@@ -458,19 +452,16 @@
struct ieee80211_if_sta *ifsta,
bool assoc)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = sdata->local;
union iwreq_data wrqu;
-
- if (!!(ifsta->flags & IEEE80211_STA_ASSOCIATED) == assoc)
- return;
+ u32 changed = BSS_CHANGED_ASSOC;
if (assoc) {
- struct ieee80211_sub_if_data *sdata;
struct ieee80211_sta_bss *bss;
ifsta->flags |= IEEE80211_STA_ASSOCIATED;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
return;
@@ -479,7 +470,8 @@
ifsta->ssid, ifsta->ssid_len);
if (bss) {
if (bss->has_erp_value)
- ieee80211_handle_erp_ie(dev, bss->erp_value);
+ changed |= ieee80211_handle_erp_ie(
+ sdata, bss->erp_value);
ieee80211_rx_bss_put(dev, bss);
}
@@ -499,6 +491,8 @@
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
ifsta->last_probe = jiffies;
ieee80211_led_assoc(local, assoc);
+
+ ieee80211_bss_info_change_notify(sdata, changed);
}
static void ieee80211_set_disassoc(struct net_device *dev,
@@ -1536,18 +1530,20 @@
}
-static void ieee80211_rx_mgmt_assoc_resp(struct net_device *dev,
+static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta,
struct ieee80211_mgmt *mgmt,
size_t len,
int reassoc)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
+ struct net_device *dev = sdata->dev;
struct ieee80211_hw_mode *mode;
struct sta_info *sta;
u32 rates;
u16 capab_info, status_code, aid;
struct ieee802_11_elems elems;
+ struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf;
u8 *pos;
int i, j;
DECLARE_MAC_BUF(mac);
@@ -1620,6 +1616,8 @@
if (ifsta->assocresp_ies)
memcpy(ifsta->assocresp_ies, pos, ifsta->assocresp_ies_len);
+ /* set AID, ieee80211_set_associated() will tell the driver */
+ bss_conf->aid = aid;
ieee80211_set_associated(dev, ifsta, 1);
/* Add STA entry for the AP */
@@ -2099,6 +2097,7 @@
struct ieee802_11_elems elems;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_conf *conf = &local->hw.conf;
+ u32 changed = 0;
ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 1);
@@ -2119,7 +2118,7 @@
ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
if (elems.erp_info && elems.erp_info_len >= 1)
- ieee80211_handle_erp_ie(dev, elems.erp_info[0]);
+ changed |= ieee80211_handle_erp_ie(sdata, elems.erp_info[0]);
if (elems.ht_cap_elem && elems.ht_info_elem &&
elems.wmm_param && local->ops->conf_ht &&
@@ -2142,6 +2141,8 @@
ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
elems.wmm_param_len);
}
+
+ ieee80211_bss_info_change_notify(sdata, changed);
}
@@ -2329,10 +2330,10 @@
ieee80211_rx_mgmt_auth(dev, ifsta, mgmt, skb->len);
break;
case IEEE80211_STYPE_ASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len, 0);
+ ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt, skb->len, 0);
break;
case IEEE80211_STYPE_REASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len, 1);
+ ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt, skb->len, 1);
break;
case IEEE80211_STYPE_DEAUTH:
ieee80211_rx_mgmt_deauth(dev, ifsta, mgmt, skb->len);
@@ -2787,7 +2788,7 @@
break;
}
control.tx_rate =
- ((sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
+ (sdata->bss_conf.use_short_preamble &&
(ratesel.rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
ratesel.rate->val2 : ratesel.rate->val;
control.antenna_sel_tx = local->hw.conf.antenna_sel_tx;