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-rw-r--r--net/mac80211/cfg.c232
-rw-r--r--net/mac80211/chan.c58
-rw-r--r--net/mac80211/debugfs_sta.c9
-rw-r--r--net/mac80211/driver-ops.h13
-rw-r--r--net/mac80211/ht.c53
-rw-r--r--net/mac80211/ibss.c184
-rw-r--r--net/mac80211/ieee80211_i.h67
-rw-r--r--net/mac80211/iface.c11
-rw-r--r--net/mac80211/led.c19
-rw-r--r--net/mac80211/led.h4
-rw-r--r--net/mac80211/main.c15
-rw-r--r--net/mac80211/mesh.c7
-rw-r--r--net/mac80211/mesh_plink.c2
-rw-r--r--net/mac80211/mlme.c152
-rw-r--r--net/mac80211/rate.c46
-rw-r--r--net/mac80211/rate.h22
-rw-r--r--net/mac80211/rc80211_minstrel.c33
-rw-r--r--net/mac80211/rc80211_minstrel_ht.c15
-rw-r--r--net/mac80211/rc80211_pid_algo.c1
-rw-r--r--net/mac80211/rx.c97
-rw-r--r--net/mac80211/scan.c72
-rw-r--r--net/mac80211/status.c90
-rw-r--r--net/mac80211/trace.h26
-rw-r--r--net/mac80211/tx.c108
-rw-r--r--net/mac80211/util.c216
25 files changed, 1214 insertions, 338 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 43dd7525bfcb..31fc2247bc37 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -395,9 +395,13 @@ void sta_set_rate_info_tx(struct sta_info *sta,
rinfo->nss = ieee80211_rate_get_vht_nss(rate);
} else {
struct ieee80211_supported_band *sband;
+ int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
+ u16 brate;
+
sband = sta->local->hw.wiphy->bands[
ieee80211_get_sdata_band(sta->sdata)];
- rinfo->legacy = sband->bitrates[rate->idx].bitrate;
+ brate = sband->bitrates[rate->idx].bitrate;
+ rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
}
if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
@@ -422,11 +426,13 @@ void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
rinfo->mcs = sta->last_rx_rate_idx;
} else {
struct ieee80211_supported_band *sband;
+ int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
+ u16 brate;
sband = sta->local->hw.wiphy->bands[
ieee80211_get_sdata_band(sta->sdata)];
- rinfo->legacy =
- sband->bitrates[sta->last_rx_rate_idx].bitrate;
+ brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
+ rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
}
if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
@@ -856,8 +862,8 @@ static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
return 0;
}
-static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
- struct cfg80211_beacon_data *params)
+int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_beacon_data *params)
{
struct beacon_data *new, *old;
int new_head_len, new_tail_len;
@@ -1020,6 +1026,12 @@ static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ /* don't allow changing the beacon while CSA is in place - offset
+ * of channel switch counter may change
+ */
+ if (sdata->vif.csa_active)
+ return -EBUSY;
+
old = rtnl_dereference(sdata->u.ap.beacon);
if (!old)
return -ENOENT;
@@ -1044,6 +1056,10 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
return -ENOENT;
old_probe_resp = rtnl_dereference(sdata->u.ap.probe_resp);
+ /* abort any running channel switch */
+ sdata->vif.csa_active = false;
+ cancel_work_sync(&sdata->csa_finalize_work);
+
/* turn off carrier for this interface and dependent VLANs */
list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
netif_carrier_off(vlan->dev);
@@ -1192,8 +1208,6 @@ static int sta_apply_parameters(struct ieee80211_local *local,
struct station_parameters *params)
{
int ret = 0;
- u32 rates;
- int i, j;
struct ieee80211_supported_band *sband;
struct ieee80211_sub_if_data *sdata = sta->sdata;
enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
@@ -1286,16 +1300,10 @@ static int sta_apply_parameters(struct ieee80211_local *local,
sta->listen_interval = params->listen_interval;
if (params->supported_rates) {
- rates = 0;
-
- for (i = 0; i < params->supported_rates_len; i++) {
- int rate = (params->supported_rates[i] & 0x7f) * 5;
- for (j = 0; j < sband->n_bitrates; j++) {
- if (sband->bitrates[j].bitrate == rate)
- rates |= BIT(j);
- }
- }
- sta->sta.supp_rates[band] = rates;
+ ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
+ sband, params->supported_rates,
+ params->supported_rates_len,
+ &sta->sta.supp_rates[band]);
}
if (params->ht_capa)
@@ -1958,18 +1966,11 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
}
if (params->basic_rates) {
- int i, j;
- u32 rates = 0;
- struct ieee80211_supported_band *sband = wiphy->bands[band];
-
- for (i = 0; i < params->basic_rates_len; i++) {
- int rate = (params->basic_rates[i] & 0x7f) * 5;
- for (j = 0; j < sband->n_bitrates; j++) {
- if (sband->bitrates[j].bitrate == rate)
- rates |= BIT(j);
- }
- }
- sdata->vif.bss_conf.basic_rates = rates;
+ ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
+ wiphy->bands[band],
+ params->basic_rates,
+ params->basic_rates_len,
+ &sdata->vif.bss_conf.basic_rates);
changed |= BSS_CHANGED_BASIC_RATES;
}
@@ -2786,6 +2787,178 @@ static int ieee80211_start_radar_detection(struct wiphy *wiphy,
return 0;
}
+static struct cfg80211_beacon_data *
+cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
+{
+ struct cfg80211_beacon_data *new_beacon;
+ u8 *pos;
+ int len;
+
+ len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
+ beacon->proberesp_ies_len + beacon->assocresp_ies_len +
+ beacon->probe_resp_len;
+
+ new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
+ if (!new_beacon)
+ return NULL;
+
+ pos = (u8 *)(new_beacon + 1);
+ if (beacon->head_len) {
+ new_beacon->head_len = beacon->head_len;
+ new_beacon->head = pos;
+ memcpy(pos, beacon->head, beacon->head_len);
+ pos += beacon->head_len;
+ }
+ if (beacon->tail_len) {
+ new_beacon->tail_len = beacon->tail_len;
+ new_beacon->tail = pos;
+ memcpy(pos, beacon->tail, beacon->tail_len);
+ pos += beacon->tail_len;
+ }
+ if (beacon->beacon_ies_len) {
+ new_beacon->beacon_ies_len = beacon->beacon_ies_len;
+ new_beacon->beacon_ies = pos;
+ memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
+ pos += beacon->beacon_ies_len;
+ }
+ if (beacon->proberesp_ies_len) {
+ new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
+ new_beacon->proberesp_ies = pos;
+ memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
+ pos += beacon->proberesp_ies_len;
+ }
+ if (beacon->assocresp_ies_len) {
+ new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
+ new_beacon->assocresp_ies = pos;
+ memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
+ pos += beacon->assocresp_ies_len;
+ }
+ if (beacon->probe_resp_len) {
+ new_beacon->probe_resp_len = beacon->probe_resp_len;
+ beacon->probe_resp = pos;
+ memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
+ pos += beacon->probe_resp_len;
+ }
+
+ return new_beacon;
+}
+
+void ieee80211_csa_finalize_work(struct work_struct *work)
+{
+ struct ieee80211_sub_if_data *sdata =
+ container_of(work, struct ieee80211_sub_if_data,
+ csa_finalize_work);
+ struct ieee80211_local *local = sdata->local;
+ int err, changed;
+
+ if (!ieee80211_sdata_running(sdata))
+ return;
+
+ if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_AP))
+ return;
+
+ sdata->radar_required = sdata->csa_radar_required;
+ err = ieee80211_vif_change_channel(sdata, &local->csa_chandef,
+ &changed);
+ if (WARN_ON(err < 0))
+ return;
+
+ err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
+ if (err < 0)
+ return;
+
+ changed |= err;
+ kfree(sdata->u.ap.next_beacon);
+ sdata->u.ap.next_beacon = NULL;
+ sdata->vif.csa_active = false;
+
+ ieee80211_wake_queues_by_reason(&sdata->local->hw,
+ IEEE80211_MAX_QUEUE_MAP,
+ IEEE80211_QUEUE_STOP_REASON_CSA);
+
+ ieee80211_bss_info_change_notify(sdata, changed);
+
+ cfg80211_ch_switch_notify(sdata->dev, &local->csa_chandef);
+}
+
+static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_csa_settings *params)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_chanctx_conf *chanctx_conf;
+ struct ieee80211_chanctx *chanctx;
+ int err, num_chanctx;
+
+ if (!list_empty(&local->roc_list) || local->scanning)
+ return -EBUSY;
+
+ if (sdata->wdev.cac_started)
+ return -EBUSY;
+
+ if (cfg80211_chandef_identical(&params->chandef,
+ &sdata->vif.bss_conf.chandef))
+ return -EINVAL;
+
+ rcu_read_lock();
+ chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+ if (!chanctx_conf) {
+ rcu_read_unlock();
+ return -EBUSY;
+ }
+
+ /* don't handle for multi-VIF cases */
+ chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
+ if (chanctx->refcount > 1) {
+ rcu_read_unlock();
+ return -EBUSY;
+ }
+ num_chanctx = 0;
+ list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
+ num_chanctx++;
+ rcu_read_unlock();
+
+ if (num_chanctx > 1)
+ return -EBUSY;
+
+ /* don't allow another channel switch if one is already active. */
+ if (sdata->vif.csa_active)
+ return -EBUSY;
+
+ /* only handle AP for now. */
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_AP:
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ sdata->u.ap.next_beacon = cfg80211_beacon_dup(&params->beacon_after);
+ if (!sdata->u.ap.next_beacon)
+ return -ENOMEM;
+
+ sdata->csa_counter_offset_beacon = params->counter_offset_beacon;
+ sdata->csa_counter_offset_presp = params->counter_offset_presp;
+ sdata->csa_radar_required = params->radar_required;
+
+ if (params->block_tx)
+ ieee80211_stop_queues_by_reason(&local->hw,
+ IEEE80211_MAX_QUEUE_MAP,
+ IEEE80211_QUEUE_STOP_REASON_CSA);
+
+ err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
+ if (err < 0)
+ return err;
+
+ local->csa_chandef = params->chandef;
+ sdata->vif.csa_active = true;
+
+ ieee80211_bss_info_change_notify(sdata, err);
+ drv_channel_switch_beacon(sdata, &params->chandef);
+
+ return 0;
+}
+
static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
struct ieee80211_channel *chan, bool offchan,
unsigned int wait, const u8 *buf, size_t len,
@@ -3503,4 +3676,5 @@ struct cfg80211_ops mac80211_config_ops = {
.get_et_strings = ieee80211_get_et_strings,
.get_channel = ieee80211_cfg_get_channel,
.start_radar_detection = ieee80211_start_radar_detection,
+ .channel_switch = ieee80211_channel_switch,
};
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 03e8d2e3270e..3a4764b2869e 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -410,6 +410,64 @@ int ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
return ret;
}
+int ieee80211_vif_change_channel(struct ieee80211_sub_if_data *sdata,
+ const struct cfg80211_chan_def *chandef,
+ u32 *changed)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_chanctx_conf *conf;
+ struct ieee80211_chanctx *ctx;
+ int ret;
+ u32 chanctx_changed = 0;
+
+ /* should never be called if not performing a channel switch. */
+ if (WARN_ON(!sdata->vif.csa_active))
+ return -EINVAL;
+
+ if (!cfg80211_chandef_usable(sdata->local->hw.wiphy, chandef,
+ IEEE80211_CHAN_DISABLED))
+ return -EINVAL;
+
+ mutex_lock(&local->chanctx_mtx);
+ conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
+ lockdep_is_held(&local->chanctx_mtx));
+ if (!conf) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ ctx = container_of(conf, struct ieee80211_chanctx, conf);
+ if (ctx->refcount != 1) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (sdata->vif.bss_conf.chandef.width != chandef->width) {
+ chanctx_changed = IEEE80211_CHANCTX_CHANGE_WIDTH;
+ *changed |= BSS_CHANGED_BANDWIDTH;
+ }
+
+ sdata->vif.bss_conf.chandef = *chandef;
+ ctx->conf.def = *chandef;
+
+ chanctx_changed |= IEEE80211_CHANCTX_CHANGE_CHANNEL;
+ drv_change_chanctx(local, ctx, chanctx_changed);
+
+ if (!local->use_chanctx) {
+ local->_oper_chandef = *chandef;
+ ieee80211_hw_config(local, 0);
+ }
+
+ ieee80211_recalc_chanctx_chantype(local, ctx);
+ ieee80211_recalc_smps_chanctx(local, ctx);
+ ieee80211_recalc_radar_chanctx(local, ctx);
+
+ ret = 0;
+ out:
+ mutex_unlock(&local->chanctx_mtx);
+ return ret;
+}
+
int ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
const struct cfg80211_chan_def *chandef,
u32 *changed)
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 44e201d60a13..19c54a44ed47 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -455,6 +455,15 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
DEBUGFS_ADD_COUNTER(tx_retry_count, tx_retry_count);
DEBUGFS_ADD_COUNTER(wep_weak_iv_count, wep_weak_iv_count);
+ if (sizeof(sta->driver_buffered_tids) == sizeof(u32))
+ debugfs_create_x32("driver_buffered_tids", 0400,
+ sta->debugfs.dir,
+ (u32 *)&sta->driver_buffered_tids);
+ else
+ debugfs_create_x64("driver_buffered_tids", 0400,
+ sta->debugfs.dir,
+ (u64 *)&sta->driver_buffered_tids);
+
drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs.dir);
}
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index b931c96a596f..b3ea11f3d526 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1072,4 +1072,17 @@ static inline void drv_ipv6_addr_change(struct ieee80211_local *local,
}
#endif
+static inline void
+drv_channel_switch_beacon(struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_chan_def *chandef)
+{
+ struct ieee80211_local *local = sdata->local;
+
+ if (local->ops->channel_switch_beacon) {
+ trace_drv_channel_switch_beacon(local, sdata, chandef);
+ local->ops->channel_switch_beacon(&local->hw, &sdata->vif,
+ chandef);
+ }
+}
+
#endif /* __MAC80211_DRIVER_OPS */
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index f83534f6a2ee..529bf58bc145 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -19,13 +19,14 @@
#include "ieee80211_i.h"
#include "rate.h"
-static void __check_htcap_disable(struct ieee80211_sub_if_data *sdata,
+static void __check_htcap_disable(struct ieee80211_ht_cap *ht_capa,
+ struct ieee80211_ht_cap *ht_capa_mask,
struct ieee80211_sta_ht_cap *ht_cap,
u16 flag)
{
__le16 le_flag = cpu_to_le16(flag);
- if (sdata->u.mgd.ht_capa_mask.cap_info & le_flag) {
- if (!(sdata->u.mgd.ht_capa.cap_info & le_flag))
+ if (ht_capa_mask->cap_info & le_flag) {
+ if (!(ht_capa->cap_info & le_flag))
ht_cap->cap &= ~flag;
}
}
@@ -33,13 +34,30 @@ static void __check_htcap_disable(struct ieee80211_sub_if_data *sdata,
void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
struct ieee80211_sta_ht_cap *ht_cap)
{
- u8 *scaps = (u8 *)(&sdata->u.mgd.ht_capa.mcs.rx_mask);
- u8 *smask = (u8 *)(&sdata->u.mgd.ht_capa_mask.mcs.rx_mask);
+ struct ieee80211_ht_cap *ht_capa, *ht_capa_mask;
+ u8 *scaps, *smask;
int i;
if (!ht_cap->ht_supported)
return;
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_STATION:
+ ht_capa = &sdata->u.mgd.ht_capa;
+ ht_capa_mask = &sdata->u.mgd.ht_capa_mask;
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ ht_capa = &sdata->u.ibss.ht_capa;
+ ht_capa_mask = &sdata->u.ibss.ht_capa_mask;
+ break;
+ default:
+ WARN_ON_ONCE(1);
+ return;
+ }
+
+ scaps = (u8 *)(&ht_capa->mcs.rx_mask);
+ smask = (u8 *)(&ht_capa_mask->mcs.rx_mask);
+
/* NOTE: If you add more over-rides here, update register_hw
* ht_capa_mod_msk logic in main.c as well.
* And, if this method can ever change ht_cap.ht_supported, fix
@@ -55,28 +73,32 @@ void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
}
/* Force removal of HT-40 capabilities? */
- __check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SUP_WIDTH_20_40);
- __check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SGI_40);
+ __check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
+ IEEE80211_HT_CAP_SUP_WIDTH_20_40);
+ __check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
+ IEEE80211_HT_CAP_SGI_40);
/* Allow user to disable SGI-20 (SGI-40 is handled above) */
- __check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SGI_20);
+ __check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
+ IEEE80211_HT_CAP_SGI_20);
/* Allow user to disable the max-AMSDU bit. */
- __check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_MAX_AMSDU);
+ __check_htcap_disable(ht_capa, ht_capa_mask, ht_cap,
+ IEEE80211_HT_CAP_MAX_AMSDU);
/* Allow user to decrease AMPDU factor */
- if (sdata->u.mgd.ht_capa_mask.ampdu_params_info &
+ if (ht_capa_mask->ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_FACTOR) {
- u8 n = sdata->u.mgd.ht_capa.ampdu_params_info
- & IEEE80211_HT_AMPDU_PARM_FACTOR;
+ u8 n = ht_capa->ampdu_params_info &
+ IEEE80211_HT_AMPDU_PARM_FACTOR;
if (n < ht_cap->ampdu_factor)
ht_cap->ampdu_factor = n;
}
/* Allow the user to increase AMPDU density. */
- if (sdata->u.mgd.ht_capa_mask.ampdu_params_info &
+ if (ht_capa_mask->ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_DENSITY) {
- u8 n = (sdata->u.mgd.ht_capa.ampdu_params_info &
+ u8 n = (ht_capa->ampdu_params_info &
IEEE80211_HT_AMPDU_PARM_DENSITY)
>> IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT;
if (n > ht_cap->ampdu_density)
@@ -112,7 +134,8 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
* we advertised a restricted capability set to. Override
* our own capabilities and then use those below.
*/
- if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+ if ((sdata->vif.type == NL80211_IFTYPE_STATION ||
+ sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
ieee80211_apply_htcap_overrides(sdata, &own_cap);
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index ea7b9c2c7e66..e08387cdc8fd 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -30,6 +30,7 @@
#define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
#define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ)
+#define IEEE80211_IBSS_RSN_INACTIVITY_LIMIT (10 * HZ)
#define IEEE80211_IBSS_MAX_STA_ENTRIES 128
@@ -43,16 +44,18 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
- int rates, i;
+ int rates_n = 0, i, ri;
struct ieee80211_mgmt *mgmt;
u8 *pos;
struct ieee80211_supported_band *sband;
struct cfg80211_bss *bss;
- u32 bss_change;
- u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
+ u32 bss_change, rate_flags, rates = 0, rates_added = 0;
struct cfg80211_chan_def chandef;
+ enum nl80211_bss_scan_width scan_width;
+ bool have_higher_than_11mbit = false;
struct beacon_data *presp;
int frame_len;
+ int shift;
sdata_assert_lock(sdata);
@@ -83,6 +86,14 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
chandef = ifibss->chandef;
if (!cfg80211_reg_can_beacon(local->hw.wiphy, &chandef)) {
+ if (chandef.width == NL80211_CHAN_WIDTH_5 ||
+ chandef.width == NL80211_CHAN_WIDTH_10 ||
+ chandef.width == NL80211_CHAN_WIDTH_20_NOHT ||
+ chandef.width == NL80211_CHAN_WIDTH_20) {
+ sdata_info(sdata,
+ "Failed to join IBSS, beacons forbidden\n");
+ return;
+ }
chandef.width = NL80211_CHAN_WIDTH_20;
chandef.center_freq1 = chan->center_freq;
}
@@ -99,6 +110,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
memcpy(ifibss->bssid, bssid, ETH_ALEN);
sband = local->hw.wiphy->bands[chan->band];
+ shift = ieee80211_vif_get_shift(&sdata->vif);
/* Build IBSS probe response */
frame_len = sizeof(struct ieee80211_hdr_3addr) +
@@ -134,15 +146,33 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
memcpy(pos, ifibss->ssid, ifibss->ssid_len);
pos += ifibss->ssid_len;
- rates = min_t(int, 8, sband->n_bitrates);
+ rate_flags = ieee80211_chandef_rate_flags(&chandef);
+ for (i = 0; i < sband->n_bitrates; i++) {
+ if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
+ continue;
+ if (sband->bitrates[i].bitrate > 110)
+ have_higher_than_11mbit = true;
+
+ rates |= BIT(i);
+ rates_n++;
+ }
+
*pos++ = WLAN_EID_SUPP_RATES;
- *pos++ = rates;
- for (i = 0; i < rates; i++) {
- int rate = sband->bitrates[i].bitrate;
+ *pos++ = min_t(int, 8, rates_n);
+ for (ri = 0; ri < sband->n_bitrates; ri++) {
+ int rate = DIV_ROUND_UP(sband->bitrates[ri].bitrate,
+ 5 * (1 << shift));
u8 basic = 0;
- if (basic_rates & BIT(i))
+ if (!(rates & BIT(ri)))
+ continue;
+
+ if (basic_rates & BIT(ri))
basic = 0x80;
- *pos++ = basic | (u8) (rate / 5);
+ *pos++ = basic | (u8) rate;
+ if (++rates_added == 8) {
+ ri++; /* continue at next rate for EXT_SUPP_RATES */
+ break;
+ }
}
if (sband->band == IEEE80211_BAND_2GHZ) {
@@ -157,15 +187,20 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
*pos++ = 0;
*pos++ = 0;
- if (sband->n_bitrates > 8) {
+ /* put the remaining rates in WLAN_EID_EXT_SUPP_RATES */
+ if (rates_n > 8) {
*pos++ = WLAN_EID_EXT_SUPP_RATES;
- *pos++ = sband->n_bitrates - 8;
- for (i = 8; i < sband->n_bitrates; i++) {
- int rate = sband->bitrates[i].bitrate;
+ *pos++ = rates_n - 8;
+ for (; ri < sband->n_bitrates; ri++) {
+ int rate = DIV_ROUND_UP(sband->bitrates[ri].bitrate,
+ 5 * (1 << shift));
u8 basic = 0;
- if (basic_rates & BIT(i))
+ if (!(rates & BIT(ri)))
+ continue;
+
+ if (basic_rates & BIT(ri))
basic = 0x80;
- *pos++ = basic | (u8) (rate / 5);
+ *pos++ = basic | (u8) rate;
}
}
@@ -179,8 +214,12 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
chandef.width != NL80211_CHAN_WIDTH_5 &&
chandef.width != NL80211_CHAN_WIDTH_10 &&
sband->ht_cap.ht_supported) {
- pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap,
- sband->ht_cap.cap);
+ struct ieee80211_sta_ht_cap ht_cap;
+
+ memcpy(&ht_cap, &sband->ht_cap, sizeof(ht_cap));
+ ieee80211_apply_htcap_overrides(sdata, &ht_cap);
+
+ pos = ieee80211_ie_build_ht_cap(pos, &ht_cap, ht_cap.cap);
/*
* Note: According to 802.11n-2009 9.13.3.1, HT Protection
* field and RIFS Mode are reserved in IBSS mode, therefore
@@ -236,18 +275,26 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
sdata->vif.bss_conf.use_short_slot = chan->band == IEEE80211_BAND_5GHZ;
bss_change |= BSS_CHANGED_ERP_SLOT;
+ /* cf. IEEE 802.11 9.2.12 */
+ if (chan->band == IEEE80211_BAND_2GHZ && have_higher_than_11mbit)
+ sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
+ else
+ sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
+
sdata->vif.bss_conf.ibss_joined = true;
sdata->vif.bss_conf.ibss_creator = creator;
ieee80211_bss_info_change_notify(sdata, bss_change);
- ieee80211_sta_def_wmm_params(sdata, sband->n_bitrates, supp_rates);
+ ieee80211_set_wmm_default(sdata, true);
ifibss->state = IEEE80211_IBSS_MLME_JOINED;
mod_timer(&ifibss->timer,
round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
- bss = cfg80211_inform_bss_frame(local->hw.wiphy, chan,
- mgmt, presp->head_len, 0, GFP_KERNEL);
+ scan_width = cfg80211_chandef_to_scan_width(&chandef);
+ bss = cfg80211_inform_bss_width_frame(local->hw.wiphy, chan,
+ scan_width, mgmt,
+ presp->head_len, 0, GFP_KERNEL);
cfg80211_put_bss(local->hw.wiphy, bss);
netif_carrier_on(sdata->dev);
cfg80211_ibss_joined(sdata->dev, ifibss->bssid, GFP_KERNEL);
@@ -264,6 +311,8 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
u16 beacon_int = cbss->beacon_interval;
const struct cfg80211_bss_ies *ies;
u64 tsf;
+ u32 rate_flags;
+ int shift;
sdata_assert_lock(sdata);
@@ -271,15 +320,24 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
beacon_int = 10;
sband = sdata->local->hw.wiphy->bands[cbss->channel->band];
+ rate_flags = ieee80211_chandef_rate_flags(&sdata->u.ibss.chandef);
+ shift = ieee80211_vif_get_shift(&sdata->vif);
basic_rates = 0;
for (i = 0; i < bss->supp_rates_len; i++) {
- int rate = (bss->supp_rates[i] & 0x7f) * 5;
+ int rate = bss->supp_rates[i] & 0x7f;
bool is_basic = !!(bss->supp_rates[i] & 0x80);
for (j = 0; j < sband->n_bitrates; j++) {
- if (sband->bitrates[j].bitrate == rate) {
+ int brate;
+ if ((rate_flags & sband->bitrates[j].flags)
+ != rate_flags)
+ continue;
+
+ brate = DIV_ROUND_UP(sband->bitrates[j].bitrate,
+ 5 * (1 << shift));
+ if (brate == rate) {
if (is_basic)
basic_rates |= BIT(j);
break;
@@ -335,6 +393,7 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, const u8 *bssid,
struct sta_info *sta;
struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_supported_band *sband;
+ enum nl80211_bss_scan_width scan_width;
int band;
/*
@@ -363,6 +422,7 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, const u8 *bssid,
if (WARN_ON_ONCE(!chanctx_conf))
return NULL;
band = chanctx_conf->def.chan->band;
+ scan_width = cfg80211_chandef_to_scan_width(&chanctx_conf->def);
rcu_read_unlock();
sta = sta_info_alloc(sdata, addr, GFP_KERNEL);
@@ -376,7 +436,7 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, const u8 *bssid,
/* make sure mandatory rates are always added */
sband = local->hw.wiphy->bands[band];
sta->sta.supp_rates[band] = supp_rates |
- ieee80211_mandatory_rates(sband);
+ ieee80211_mandatory_rates(sband, scan_width);
return ieee80211_ibss_finish_sta(sta);
}
@@ -440,6 +500,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
u64 beacon_timestamp, rx_timestamp;
u32 supp_rates = 0;
enum ieee80211_band band = rx_status->band;
+ enum nl80211_bss_scan_width scan_width;
struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
bool rates_updated = false;
@@ -461,16 +522,22 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
sta = sta_info_get(sdata, mgmt->sa);
if (elems->supp_rates) {
- supp_rates = ieee80211_sta_get_rates(local, elems,
+ supp_rates = ieee80211_sta_get_rates(sdata, elems,
band, NULL);
if (sta) {
u32 prev_rates;
prev_rates = sta->sta.supp_rates[band];
/* make sure mandatory rates are always added */
- sta->sta.supp_rates[band] = supp_rates |
- ieee80211_mandatory_rates(sband);
+ scan_width = NL80211_BSS_CHAN_WIDTH_20;
+ if (rx_status->flag & RX_FLAG_5MHZ)
+ scan_width = NL80211_BSS_CHAN_WIDTH_5;
+ if (rx_status->flag & RX_FLAG_10MHZ)
+ scan_width = NL80211_BSS_CHAN_WIDTH_10;
+ sta->sta.supp_rates[band] = supp_rates |
+ ieee80211_mandatory_rates(sband,
+ scan_width);
if (sta->sta.supp_rates[band] != prev_rates) {
ibss_dbg(sdata,
"updated supp_rates set for %pM based on beacon/probe_resp (0x%x -> 0x%x)\n",
@@ -585,7 +652,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
"beacon TSF higher than local TSF - IBSS merge with BSSID %pM\n",
mgmt->bssid);
ieee80211_sta_join_ibss(sdata, bss);
- supp_rates = ieee80211_sta_get_rates(local, elems, band, NULL);
+ supp_rates = ieee80211_sta_get_rates(sdata, elems, band, NULL);
ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa,
supp_rates);
rcu_read_unlock();
@@ -604,6 +671,7 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
struct sta_info *sta;
struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_supported_band *sband;
+ enum nl80211_bss_scan_width scan_width;
int band;
/*
@@ -629,6 +697,7 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
return;
}
band = chanctx_conf->def.chan->band;
+ scan_width = cfg80211_chandef_to_scan_width(&chanctx_conf->def);
rcu_read_unlock();
sta = sta_info_alloc(sdata, addr, GFP_ATOMIC);
@@ -640,7 +709,7 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
/* make sure mandatory rates are always added */
sband = local->hw.wiphy->bands[band];
sta->sta.supp_rates[band] = supp_rates |
- ieee80211_mandatory_rates(sband);
+ ieee80211_mandatory_rates(sband, scan_width);
spin_lock(&ifibss->incomplete_lock);
list_add(&sta->list, &ifibss->incomplete_stations);
@@ -672,6 +741,33 @@ static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
return active;
}
+static void ieee80211_ibss_sta_expire(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct sta_info *sta, *tmp;
+ unsigned long exp_time = IEEE80211_IBSS_INACTIVITY_LIMIT;
+ unsigned long exp_rsn_time = IEEE80211_IBSS_RSN_INACTIVITY_LIMIT;
+
+ mutex_lock(&local->sta_mtx);
+
+ list_for_each_entry_safe(sta, tmp, &local->sta_list, list) {
+ if (sdata != sta->sdata)
+ continue;
+
+ if (time_after(jiffies, sta->last_rx + exp_time) ||
+ (time_after(jiffies, sta->last_rx + exp_rsn_time) &&
+ sta->sta_state != IEEE80211_STA_AUTHORIZED)) {
+ sta_dbg(sta->sdata, "expiring inactive %sSTA %pM\n",
+ sta->sta_state != IEEE80211_STA_AUTHORIZED ?
+ "not authorized " : "", sta->sta.addr);
+
+ WARN_ON(__sta_info_destroy(sta));
+ }
+ }
+
+ mutex_unlock(&local->sta_mtx);
+}
+
/*
* This function is called with state == IEEE80211_IBSS_MLME_JOINED
*/
@@ -679,13 +775,14 @@ static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+ enum nl80211_bss_scan_width scan_width;
sdata_assert_lock(sdata);
mod_timer(&ifibss->timer,
round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
- ieee80211_sta_expire(sdata, IEEE80211_IBSS_INACTIVITY_LIMIT);
+ ieee80211_ibss_sta_expire(sdata);
if (time_before(jiffies, ifibss->last_scan_completed +
IEEE80211_IBSS_MERGE_INTERVAL))
@@ -700,8 +797,9 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
sdata_info(sdata,
"No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge)\n");
+ scan_width = cfg80211_chandef_to_scan_width(&ifibss->chandef);
ieee80211_request_ibss_scan(sdata, ifibss->ssid, ifibss->ssid_len,
- NULL);
+ NULL, scan_width);
}
static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
@@ -751,6 +849,7 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
struct cfg80211_bss *cbss;
struct ieee80211_channel *chan = NULL;
const u8 *bssid = NULL;
+ enum nl80211_bss_scan_width scan_width;
int active_ibss;
u16 capability;
@@ -799,8 +898,10 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
IEEE80211_SCAN_INTERVAL)) {
sdata_info(sdata, "Trigger new scan to find an IBSS to join\n");
+ scan_width = cfg80211_chandef_to_scan_width(&ifibss->chandef);
ieee80211_request_ibss_scan(sdata, ifibss->ssid,
- ifibss->ssid_len, chan);
+ ifibss->ssid_len, chan,
+ scan_width);
} else {
int interval = IEEE80211_SCAN_INTERVAL;
@@ -1020,6 +1121,9 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
struct cfg80211_ibss_params *params)
{
u32 changed = 0;
+ u32 rate_flags;
+ struct ieee80211_supported_band *sband;
+ int i;
if (params->bssid) {
memcpy(sdata->u.ibss.bssid, params->bssid, ETH_ALEN);
@@ -1030,6 +1134,14 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
sdata->u.ibss.privacy = params->privacy;
sdata->u.ibss.control_port = params->control_port;
sdata->u.ibss.basic_rates = params->basic_rates;
+
+ /* fix basic_rates if channel does not support these rates */
+ rate_flags = ieee80211_chandef_rate_flags(&params->chandef);
+ sband = sdata->local->hw.wiphy->bands[params->chandef.chan->band];
+ for (i = 0; i < sband->n_bitrates; i++) {
+ if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
+ sdata->u.ibss.basic_rates &= ~BIT(i);
+ }
memcpy(sdata->vif.bss_conf.mcast_rate, params->mcast_rate,
sizeof(params->mcast_rate));
@@ -1051,6 +1163,11 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
memcpy(sdata->u.ibss.ssid, params->ssid, params->ssid_len);
sdata->u.ibss.ssid_len = params->ssid_len;
+ memcpy(&sdata->u.ibss.ht_capa, &params->ht_capa,
+ sizeof(sdata->u.ibss.ht_capa));
+ memcpy(&sdata->u.ibss.ht_capa_mask, &params->ht_capa_mask,
+ sizeof(sdata->u.ibss.ht_capa_mask));
+
/*
* 802.11n-2009 9.13.3.1: In an IBSS, the HT Protection field is
* reserved, but an HT STA shall protect HT transmissions as though
@@ -1131,6 +1248,11 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
presp = rcu_dereference_protected(ifibss->presp,
lockdep_is_held(&sdata->wdev.mtx));
RCU_INIT_POINTER(sdata->u.ibss.presp, NULL);
+
+ /* on the next join, re-program HT parameters */
+ memset(&ifibss->ht_capa, 0, sizeof(ifibss->ht_capa));
+ memset(&ifibss->ht_capa_mask, 0, sizeof(ifibss->ht_capa_mask));
+
sdata->vif.bss_conf.ibss_joined = false;
sdata->vif.bss_conf.ibss_creator = false;
sdata->vif.bss_conf.enable_beacon = false;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 8412a303993a..e94c84050e9c 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -259,6 +259,8 @@ struct ieee80211_if_ap {
struct beacon_data __rcu *beacon;
struct probe_resp __rcu *probe_resp;
+ /* to be used after channel switch. */
+ struct cfg80211_beacon_data *next_beacon;
struct list_head vlans;
struct ps_data ps;
@@ -509,6 +511,9 @@ struct ieee80211_if_ibss {
/* probe response/beacon for IBSS */
struct beacon_data __rcu *presp;
+ struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
+ struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
+
spinlock_t incomplete_lock;
struct list_head incomplete_stations;
@@ -713,6 +718,11 @@ struct ieee80211_sub_if_data {
struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
+ struct work_struct csa_finalize_work;
+ int csa_counter_offset_beacon;
+ int csa_counter_offset_presp;
+ bool csa_radar_required;
+
/* used to reconfigure hardware SM PS */
struct work_struct recalc_smps;
@@ -809,6 +819,34 @@ ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
return band;
}
+static inline int
+ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
+{
+ switch (chandef->width) {
+ case NL80211_CHAN_WIDTH_5:
+ return 2;
+ case NL80211_CHAN_WIDTH_10:
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+static inline int
+ieee80211_vif_get_shift(struct ieee80211_vif *vif)
+{
+ struct ieee80211_chanctx_conf *chanctx_conf;
+ int shift = 0;
+
+ rcu_read_lock();
+ chanctx_conf = rcu_dereference(vif->chanctx_conf);
+ if (chanctx_conf)
+ shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
+ rcu_read_unlock();
+
+ return shift;
+}
+
enum sdata_queue_type {
IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
IEEE80211_SDATA_QUEUE_AGG_START = 1,
@@ -1026,7 +1064,7 @@ struct ieee80211_local {
struct cfg80211_ssid scan_ssid;
struct cfg80211_scan_request *int_scan_req;
struct cfg80211_scan_request *scan_req, *hw_scan_req;
- struct ieee80211_channel *scan_channel;
+ struct cfg80211_chan_def scan_chandef;
enum ieee80211_band hw_scan_band;
int scan_channel_idx;
int scan_ies_len;
@@ -1063,7 +1101,6 @@ struct ieee80211_local {
u32 dot11TransmittedFrameCount;
#ifdef CONFIG_MAC80211_LEDS
- int tx_led_counter, rx_led_counter;
struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
struct tpt_led_trigger *tpt_led_trigger;
char tx_led_name[32], rx_led_name[32],
@@ -1306,7 +1343,8 @@ void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
void ieee80211_scan_work(struct work_struct *work);
int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
const u8 *ssid, u8 ssid_len,
- struct ieee80211_channel *chan);
+ struct ieee80211_channel *chan,
+ enum nl80211_bss_scan_width scan_width);
int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
struct cfg80211_scan_request *req);
void ieee80211_scan_cancel(struct ieee80211_local *local);
@@ -1341,6 +1379,9 @@ void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free);
void ieee80211_sw_roc_work(struct work_struct *work);
void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
+/* channel switch handling */
+void ieee80211_csa_finalize_work(struct work_struct *work);
+
/* interface handling */
int ieee80211_iface_init(void);
void ieee80211_iface_exit(void);
@@ -1362,6 +1403,8 @@ void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
+int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_beacon_data *params);
static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
{
@@ -1465,7 +1508,8 @@ extern void *mac80211_wiphy_privid; /* for wiphy privid */
u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
enum nl80211_iftype type);
int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
- int rate, int erp, int short_preamble);
+ int rate, int erp, int short_preamble,
+ int shift);
void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
struct ieee80211_hdr *hdr, const u8 *tsc,
gfp_t gfp);
@@ -1569,7 +1613,7 @@ void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
size_t buffer_len, const u8 *ie, size_t ie_len,
enum ieee80211_band band, u32 rate_mask,
- u8 channel);
+ struct cfg80211_chan_def *chandef);
struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
u8 *dst, u32 ratemask,
struct ieee80211_channel *chan,
@@ -1582,10 +1626,7 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
u32 ratemask, bool directed, u32 tx_flags,
struct ieee80211_channel *channel, bool scan);
-void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
- const size_t supp_rates_len,
- const u8 *supp_rates);
-u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
+u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
struct ieee802_11_elems *elems,
enum ieee80211_band band, u32 *basic_rates);
int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
@@ -1602,6 +1643,9 @@ u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
u16 prot_mode);
u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
u32 cap);
+int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
+ const struct ieee80211_supported_band *sband,
+ const u8 *srates, int srates_len, u32 *rates);
int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb, bool need_basic,
enum ieee80211_band band);
@@ -1622,6 +1666,11 @@ int __must_check
ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
const struct cfg80211_chan_def *chandef,
u32 *changed);
+/* NOTE: only use ieee80211_vif_change_channel() for channel switch */
+int __must_check
+ieee80211_vif_change_channel(struct ieee80211_sub_if_data *sdata,
+ const struct cfg80211_chan_def *chandef,
+ u32 *changed);
void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index cc117591f678..7ca534bf4cea 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -54,7 +54,7 @@ bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata)
return false;
}
- power = chanctx_conf->def.chan->max_power;
+ power = ieee80211_chandef_max_power(&chanctx_conf->def);
rcu_read_unlock();
if (sdata->user_power_level != IEEE80211_UNSET_POWER_LEVEL)
@@ -274,6 +274,12 @@ static int ieee80211_check_concurrent_iface(struct ieee80211_sub_if_data *sdata,
if (iftype == NL80211_IFTYPE_ADHOC &&
nsdata->vif.type == NL80211_IFTYPE_ADHOC)
return -EBUSY;
+ /*
+ * will not add another interface while any channel
+ * switch is active.
+ */
+ if (nsdata->vif.csa_active)
+ return -EBUSY;
/*
* The remaining checks are only performed for interfaces
@@ -804,6 +810,8 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
cancel_work_sync(&local->dynamic_ps_enable_work);
cancel_work_sync(&sdata->recalc_smps);
+ sdata->vif.csa_active = false;
+ cancel_work_sync(&sdata->csa_finalize_work);
cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
@@ -1267,6 +1275,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
skb_queue_head_init(&sdata->skb_queue);
INIT_WORK(&sdata->work, ieee80211_iface_work);
INIT_WORK(&sdata->recalc_smps, ieee80211_recalc_smps_work);
+ INIT_WORK(&sdata->csa_finalize_work, ieee80211_csa_finalize_work);
switch (type) {
case NL80211_IFTYPE_P2P_GO:
diff --git a/net/mac80211/led.c b/net/mac80211/led.c
index bcffa6903129..e2b836446af3 100644
--- a/net/mac80211/led.c
+++ b/net/mac80211/led.c
@@ -12,27 +12,22 @@
#include <linux/export.h>
#include "led.h"
+#define MAC80211_BLINK_DELAY 50 /* ms */
+
void ieee80211_led_rx(struct ieee80211_local *local)
{
+ unsigned long led_delay = MAC80211_BLINK_DELAY;
if (unlikely(!local->rx_led))
return;
- if (local->rx_led_counter++ % 2 == 0)
- led_trigger_event(local->rx_led, LED_OFF);
- else
- led_trigger_event(local->rx_led, LED_FULL);
+ led_trigger_blink_oneshot(local->rx_led, &led_delay, &led_delay, 0);
}
-/* q is 1 if a packet was enqueued, 0 if it has been transmitted */
-void ieee80211_led_tx(struct ieee80211_local *local, int q)
+void ieee80211_led_tx(struct ieee80211_local *local)
{
+ unsigned long led_delay = MAC80211_BLINK_DELAY;
if (unlikely(!local->tx_led))
return;
- /* not sure how this is supposed to work ... */
- local->tx_led_counter += 2*q-1;
- if (local->tx_led_counter % 2 == 0)
- led_trigger_event(local->tx_led, LED_OFF);
- else
- led_trigger_event(local->tx_led, LED_FULL);
+ led_trigger_blink_oneshot(local->tx_led, &led_delay, &led_delay, 0);
}
void ieee80211_led_assoc(struct ieee80211_local *local, bool associated)
diff --git a/net/mac80211/led.h b/net/mac80211/led.h
index e0275d9befa8..89f4344f13b9 100644
--- a/net/mac80211/led.h
+++ b/net/mac80211/led.h
@@ -13,7 +13,7 @@
#ifdef CONFIG_MAC80211_LEDS
void ieee80211_led_rx(struct ieee80211_local *local);
-void ieee80211_led_tx(struct ieee80211_local *local, int q);
+void ieee80211_led_tx(struct ieee80211_local *local);
void ieee80211_led_assoc(struct ieee80211_local *local,
bool associated);
void ieee80211_led_radio(struct ieee80211_local *local,
@@ -27,7 +27,7 @@ void ieee80211_mod_tpt_led_trig(struct ieee80211_local *local,
static inline void ieee80211_led_rx(struct ieee80211_local *local)
{
}
-static inline void ieee80211_led_tx(struct ieee80211_local *local, int q)
+static inline void ieee80211_led_tx(struct ieee80211_local *local)
{
}
static inline void ieee80211_led_assoc(struct ieee80211_local *local,
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 091088ac7890..25eb35b01938 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -102,17 +102,8 @@ static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local)
offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL;
- if (local->scan_channel) {
- chandef.chan = local->scan_channel;
- /* If scanning on oper channel, use whatever channel-type
- * is currently in use.
- */
- if (chandef.chan == local->_oper_chandef.chan) {
- chandef = local->_oper_chandef;
- } else {
- chandef.width = NL80211_CHAN_WIDTH_20_NOHT;
- chandef.center_freq1 = chandef.chan->center_freq;
- }
+ if (local->scan_chandef.chan) {
+ chandef = local->scan_chandef;
} else if (local->tmp_channel) {
chandef.chan = local->tmp_channel;
chandef.width = NL80211_CHAN_WIDTH_20_NOHT;
@@ -151,7 +142,7 @@ static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local)
changed |= IEEE80211_CONF_CHANGE_SMPS;
}
- power = chandef.chan->max_power;
+ power = ieee80211_chandef_max_power(&chandef);
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 447f41bbe744..885a5f6e2c21 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -62,7 +62,6 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata,
struct ieee802_11_elems *ie)
{
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
- struct ieee80211_local *local = sdata->local;
u32 basic_rates = 0;
struct cfg80211_chan_def sta_chan_def;
@@ -85,7 +84,7 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata,
(ifmsh->mesh_auth_id == ie->mesh_config->meshconf_auth)))
return false;
- ieee80211_sta_get_rates(local, ie, ieee80211_get_sdata_band(sdata),
+ ieee80211_sta_get_rates(sdata, ie, ieee80211_get_sdata_band(sdata),
&basic_rates);
if (sdata->vif.bss_conf.basic_rates != basic_rates)
@@ -274,7 +273,9 @@ int mesh_add_meshconf_ie(struct ieee80211_sub_if_data *sdata,
neighbors = min_t(int, neighbors, IEEE80211_MAX_MESH_PEERINGS);
*pos++ = neighbors << 1;
/* Mesh capability */
- *pos = IEEE80211_MESHCONF_CAPAB_FORWARDING;
+ *pos = 0x00;
+ *pos |= ifmsh->mshcfg.dot11MeshForwarding ?
+ IEEE80211_MESHCONF_CAPAB_FORWARDING : 0x00;
*pos |= ifmsh->accepting_plinks ?
IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS : 0x00;
/* Mesh PS mode. See IEEE802.11-2012 8.4.2.100.8 */
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 02c05fa15c20..6b65d5055f5b 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -379,7 +379,7 @@ static void mesh_sta_info_init(struct ieee80211_sub_if_data *sdata,
u32 rates, basic_rates = 0, changed = 0;
sband = local->hw.wiphy->bands[band];
- rates = ieee80211_sta_get_rates(local, elems, band, &basic_rates);
+ rates = ieee80211_sta_get_rates(sdata, elems, band, &basic_rates);
spin_lock_bh(&sta->lock);
sta->last_rx = jiffies;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index ae31968d42d3..21bccd849b3f 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -31,10 +31,12 @@
#include "led.h"
#define IEEE80211_AUTH_TIMEOUT (HZ / 5)
+#define IEEE80211_AUTH_TIMEOUT_LONG (HZ / 2)
#define IEEE80211_AUTH_TIMEOUT_SHORT (HZ / 10)
#define IEEE80211_AUTH_MAX_TRIES 3
#define IEEE80211_AUTH_WAIT_ASSOC (HZ * 5)
#define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
+#define IEEE80211_ASSOC_TIMEOUT_LONG (HZ / 2)
#define IEEE80211_ASSOC_TIMEOUT_SHORT (HZ / 10)
#define IEEE80211_ASSOC_MAX_TRIES 3
@@ -209,8 +211,9 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
struct ieee80211_channel *channel,
const struct ieee80211_ht_operation *ht_oper,
const struct ieee80211_vht_operation *vht_oper,
- struct cfg80211_chan_def *chandef, bool verbose)
+ struct cfg80211_chan_def *chandef, bool tracking)
{
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct cfg80211_chan_def vht_chandef;
u32 ht_cfreq, ret;
@@ -229,7 +232,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
ht_cfreq = ieee80211_channel_to_frequency(ht_oper->primary_chan,
channel->band);
/* check that channel matches the right operating channel */
- if (channel->center_freq != ht_cfreq) {
+ if (!tracking && channel->center_freq != ht_cfreq) {
/*
* It's possible that some APs are confused here;
* Netgear WNDR3700 sometimes reports 4 higher than
@@ -237,11 +240,10 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
* since we look at probe response/beacon data here
* it should be OK.
*/
- if (verbose)
- sdata_info(sdata,
- "Wrong control channel: center-freq: %d ht-cfreq: %d ht->primary_chan: %d band: %d - Disabling HT\n",
- channel->center_freq, ht_cfreq,
- ht_oper->primary_chan, channel->band);
+ sdata_info(sdata,
+ "Wrong control channel: center-freq: %d ht-cfreq: %d ht->primary_chan: %d band: %d - Disabling HT\n",
+ channel->center_freq, ht_cfreq,
+ ht_oper->primary_chan, channel->band);
ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
goto out;
}
@@ -295,7 +297,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
channel->band);
break;
default:
- if (verbose)
+ if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
sdata_info(sdata,
"AP VHT operation IE has invalid channel width (%d), disable VHT\n",
vht_oper->chan_width);
@@ -304,7 +306,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
}
if (!cfg80211_chandef_valid(&vht_chandef)) {
- if (verbose)
+ if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
sdata_info(sdata,
"AP VHT information is invalid, disable VHT\n");
ret = IEEE80211_STA_DISABLE_VHT;
@@ -317,7 +319,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
}
if (!cfg80211_chandef_compatible(chandef, &vht_chandef)) {
- if (verbose)
+ if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
sdata_info(sdata,
"AP VHT information doesn't match HT, disable VHT\n");
ret = IEEE80211_STA_DISABLE_VHT;
@@ -333,18 +335,27 @@ out:
if (ret & IEEE80211_STA_DISABLE_VHT)
vht_chandef = *chandef;
+ /*
+ * Ignore the DISABLED flag when we're already connected and only
+ * tracking the APs beacon for bandwidth changes - otherwise we
+ * might get disconnected here if we connect to an AP, update our
+ * regulatory information based on the AP's country IE and the
+ * information we have is wrong/outdated and disables the channel
+ * that we're actually using for the connection to the AP.
+ */
while (!cfg80211_chandef_usable(sdata->local->hw.wiphy, chandef,
- IEEE80211_CHAN_DISABLED)) {
+ tracking ? 0 :
+ IEEE80211_CHAN_DISABLED)) {
if (WARN_ON(chandef->width == NL80211_CHAN_WIDTH_20_NOHT)) {
ret = IEEE80211_STA_DISABLE_HT |
IEEE80211_STA_DISABLE_VHT;
- goto out;
+ break;
}
ret |= chandef_downgrade(chandef);
}
- if (chandef->width != vht_chandef.width && verbose)
+ if (chandef->width != vht_chandef.width && !tracking)
sdata_info(sdata,
"capabilities/regulatory prevented using AP HT/VHT configuration, downgraded\n");
@@ -384,7 +395,7 @@ static int ieee80211_config_bw(struct ieee80211_sub_if_data *sdata,
/* calculate new channel (type) based on HT/VHT operation IEs */
flags = ieee80211_determine_chantype(sdata, sband, chan, ht_oper,
- vht_oper, &chandef, false);
+ vht_oper, &chandef, true);
/*
* Downgrade the new channel if we associated with restricted
@@ -478,27 +489,6 @@ static int ieee80211_config_bw(struct ieee80211_sub_if_data *sdata,
/* frame sending functions */
-static int ieee80211_compatible_rates(const u8 *supp_rates, int supp_rates_len,
- struct ieee80211_supported_band *sband,
- u32 *rates)
-{
- int i, j, count;
- *rates = 0;
- count = 0;
- for (i = 0; i < supp_rates_len; i++) {
- int rate = (supp_rates[i] & 0x7F) * 5;
-
- for (j = 0; j < sband->n_bitrates; j++)
- if (sband->bitrates[j].bitrate == rate) {
- *rates |= BIT(j);
- count++;
- break;
- }
- }
-
- return count;
-}
-
static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb, u8 ap_ht_param,
struct ieee80211_supported_band *sband,
@@ -617,12 +607,12 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
struct ieee80211_mgmt *mgmt;
u8 *pos, qos_info;
size_t offset = 0, noffset;
- int i, count, rates_len, supp_rates_len;
+ int i, count, rates_len, supp_rates_len, shift;
u16 capab;
struct ieee80211_supported_band *sband;
struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_channel *chan;
- u32 rates = 0;
+ u32 rate_flags, rates = 0;
sdata_assert_lock(sdata);
@@ -633,8 +623,10 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
return;
}
chan = chanctx_conf->def.chan;
+ rate_flags = ieee80211_chandef_rate_flags(&chanctx_conf->def);
rcu_read_unlock();
sband = local->hw.wiphy->bands[chan->band];
+ shift = ieee80211_vif_get_shift(&sdata->vif);
if (assoc_data->supp_rates_len) {
/*
@@ -643,17 +635,24 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
* in the association request (e.g. D-Link DAP 1353 in
* b-only mode)...
*/
- rates_len = ieee80211_compatible_rates(assoc_data->supp_rates,
- assoc_data->supp_rates_len,
- sband, &rates);
+ rates_len = ieee80211_parse_bitrates(&chanctx_conf->def, sband,
+ assoc_data->supp_rates,
+ assoc_data->supp_rates_len,
+ &rates);
} else {
/*
* In case AP not provide any supported rates information
* before association, we send information element(s) with
* all rates that we support.
*/
- rates = ~0;
- rates_len = sband->n_bitrates;
+ rates_len = 0;
+ for (i = 0; i < sband->n_bitrates; i++) {
+ if ((rate_flags & sband->bitrates[i].flags)
+ != rate_flags)
+ continue;
+ rates |= BIT(i);
+ rates_len++;
+ }
}
skb = alloc_skb(local->hw.extra_tx_headroom +
@@ -730,8 +729,9 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
count = 0;
for (i = 0; i < sband->n_bitrates; i++) {
if (BIT(i) & rates) {
- int rate = sband->bitrates[i].bitrate;
- *pos++ = (u8) (rate / 5);
+ int rate = DIV_ROUND_UP(sband->bitrates[i].bitrate,
+ 5 * (1 << shift));
+ *pos++ = (u8) rate;
if (++count == 8)
break;
}
@@ -744,8 +744,10 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
for (i++; i < sband->n_bitrates; i++) {
if (BIT(i) & rates) {
- int rate = sband->bitrates[i].bitrate;
- *pos++ = (u8) (rate / 5);
+ int rate;
+ rate = DIV_ROUND_UP(sband->bitrates[i].bitrate,
+ 5 * (1 << shift));
+ *pos++ = (u8) rate;
}
}
}
@@ -756,7 +758,8 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
*pos++ = WLAN_EID_PWR_CAPABILITY;
*pos++ = 2;
*pos++ = 0; /* min tx power */
- *pos++ = chan->max_power; /* max tx power */
+ /* max tx power */
+ *pos++ = ieee80211_chandef_max_power(&chanctx_conf->def);
/* 2. supported channels */
/* TODO: get this in reg domain format */
@@ -2432,15 +2435,16 @@ static void ieee80211_get_rates(struct ieee80211_supported_band *sband,
u8 *supp_rates, unsigned int supp_rates_len,
u32 *rates, u32 *basic_rates,
bool *have_higher_than_11mbit,
- int *min_rate, int *min_rate_index)
+ int *min_rate, int *min_rate_index,
+ int shift, u32 rate_flags)
{
int i, j;
for (i = 0; i < supp_rates_len; i++) {
- int rate = (supp_rates[i] & 0x7f) * 5;
+ int rate = supp_rates[i] & 0x7f;
bool is_basic = !!(supp_rates[i] & 0x80);
- if (rate > 110)
+ if ((rate * 5 * (1 << shift)) > 110)
*have_higher_than_11mbit = true;
/*
@@ -2456,12 +2460,20 @@ static void ieee80211_get_rates(struct ieee80211_supported_band *sband,
continue;
for (j = 0; j < sband->n_bitrates; j++) {
- if (sband->bitrates[j].bitrate == rate) {
+ struct ieee80211_rate *br;
+ int brate;
+
+ br = &sband->bitrates[j];
+ if ((rate_flags & br->flags) != rate_flags)
+ continue;
+
+ brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5);
+ if (brate == rate) {
*rates |= BIT(j);
if (is_basic)
*basic_rates |= BIT(j);
- if (rate < *min_rate) {
- *min_rate = rate;
+ if ((rate * 5) < *min_rate) {
+ *min_rate = rate * 5;
*min_rate_index = j;
}
break;
@@ -3394,10 +3406,13 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata)
if (tx_flags == 0) {
auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT;
- ifmgd->auth_data->timeout_started = true;
+ auth_data->timeout_started = true;
run_again(sdata, auth_data->timeout);
} else {
- auth_data->timeout_started = false;
+ auth_data->timeout =
+ round_jiffies_up(jiffies + IEEE80211_AUTH_TIMEOUT_LONG);
+ auth_data->timeout_started = true;
+ run_again(sdata, auth_data->timeout);
}
return 0;
@@ -3434,7 +3449,11 @@ static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata)
assoc_data->timeout_started = true;
run_again(sdata, assoc_data->timeout);
} else {
- assoc_data->timeout_started = false;
+ assoc_data->timeout =
+ round_jiffies_up(jiffies +
+ IEEE80211_ASSOC_TIMEOUT_LONG);
+ assoc_data->timeout_started = true;
+ run_again(sdata, assoc_data->timeout);
}
return 0;
@@ -3829,7 +3848,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
ifmgd->flags |= ieee80211_determine_chantype(sdata, sband,
cbss->channel,
ht_oper, vht_oper,
- &chandef, true);
+ &chandef, false);
sdata->needed_rx_chains = min(ieee80211_ht_vht_rx_chains(sdata, cbss),
local->rx_chains);
@@ -3884,27 +3903,40 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
if (!new_sta)
return -ENOMEM;
}
-
if (new_sta) {
u32 rates = 0, basic_rates = 0;
bool have_higher_than_11mbit;
int min_rate = INT_MAX, min_rate_index = -1;
+ struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_supported_band *sband;
const struct cfg80211_bss_ies *ies;
+ int shift;
+ u32 rate_flags;
sband = local->hw.wiphy->bands[cbss->channel->band];
err = ieee80211_prep_channel(sdata, cbss);
if (err) {
sta_info_free(local, new_sta);
- return err;
+ return -EINVAL;
+ }
+ shift = ieee80211_vif_get_shift(&sdata->vif);
+
+ rcu_read_lock();
+ chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+ if (WARN_ON(!chanctx_conf)) {
+ rcu_read_unlock();
+ return -EINVAL;
}
+ rate_flags = ieee80211_chandef_rate_flags(&chanctx_conf->def);
+ rcu_read_unlock();
ieee80211_get_rates(sband, bss->supp_rates,
bss->supp_rates_len,
&rates, &basic_rates,
&have_higher_than_11mbit,
- &min_rate, &min_rate_index);
+ &min_rate, &min_rate_index,
+ shift, rate_flags);
/*
* This used to be a workaround for basic rates missing
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 30d58d2d13e2..ba63ac851c2b 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -232,37 +232,28 @@ static void rc_send_low_broadcast(s8 *idx, u32 basic_rates,
/* could not find a basic rate; use original selection */
}
-static inline s8
-rate_lowest_non_cck_index(struct ieee80211_supported_band *sband,
- struct ieee80211_sta *sta)
+static void __rate_control_send_low(struct ieee80211_hw *hw,
+ struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta,
+ struct ieee80211_tx_info *info)
{
int i;
+ u32 rate_flags =
+ ieee80211_chandef_rate_flags(&hw->conf.chandef);
+ if ((sband->band == IEEE80211_BAND_2GHZ) &&
+ (info->flags & IEEE80211_TX_CTL_NO_CCK_RATE))
+ rate_flags |= IEEE80211_RATE_ERP_G;
+
+ info->control.rates[0].idx = 0;
for (i = 0; i < sband->n_bitrates; i++) {
- struct ieee80211_rate *srate = &sband->bitrates[i];
- if ((srate->bitrate == 10) || (srate->bitrate == 20) ||
- (srate->bitrate == 55) || (srate->bitrate == 110))
+ if (!rate_supported(sta, sband->band, i))
continue;
- if (rate_supported(sta, sband->band, i))
- return i;
+ info->control.rates[0].idx = i;
+ break;
}
-
- /* No matching rate found */
- return 0;
-}
-
-static void __rate_control_send_low(struct ieee80211_hw *hw,
- struct ieee80211_supported_band *sband,
- struct ieee80211_sta *sta,
- struct ieee80211_tx_info *info)
-{
- if ((sband->band != IEEE80211_BAND_2GHZ) ||
- !(info->flags & IEEE80211_TX_CTL_NO_CCK_RATE))
- info->control.rates[0].idx = rate_lowest_index(sband, sta);
- else
- info->control.rates[0].idx =
- rate_lowest_non_cck_index(sband, sta);
+ WARN_ON_ONCE(i == sband->n_bitrates);
info->control.rates[0].count =
(info->flags & IEEE80211_TX_CTL_NO_ACK) ?
@@ -585,6 +576,7 @@ static void rate_control_apply_mask(struct ieee80211_sub_if_data *sdata,
u8 mcs_mask[IEEE80211_HT_MCS_MASK_LEN];
bool has_mcs_mask;
u32 mask;
+ u32 rate_flags;
int i;
/*
@@ -594,6 +586,12 @@ static void rate_control_apply_mask(struct ieee80211_sub_if_data *sdata,
*/
mask = sdata->rc_rateidx_mask[info->band];
has_mcs_mask = sdata->rc_has_mcs_mask[info->band];
+ rate_flags =
+ ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef);
+ for (i = 0; i < sband->n_bitrates; i++)
+ if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
+ mask &= ~BIT(i);
+
if (mask == (1 << sband->n_bitrates) - 1 && !has_mcs_mask)
return;
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index d35a5dd3fb13..5dedc56c94db 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -66,11 +66,12 @@ static inline void rate_control_rate_init(struct sta_info *sta)
}
sband = local->hw.wiphy->bands[chanctx_conf->def.chan->band];
- rcu_read_unlock();
ieee80211_sta_set_rx_nss(sta);
- ref->ops->rate_init(ref->priv, sband, ista, priv_sta);
+ ref->ops->rate_init(ref->priv, sband, &chanctx_conf->def, ista,
+ priv_sta);
+ rcu_read_unlock();
set_sta_flag(sta, WLAN_STA_RATE_CONTROL);
}
@@ -81,10 +82,21 @@ static inline void rate_control_rate_update(struct ieee80211_local *local,
struct rate_control_ref *ref = local->rate_ctrl;
struct ieee80211_sta *ista = &sta->sta;
void *priv_sta = sta->rate_ctrl_priv;
+ struct ieee80211_chanctx_conf *chanctx_conf;
+
+ if (ref && ref->ops->rate_update) {
+ rcu_read_lock();
- if (ref && ref->ops->rate_update)
- ref->ops->rate_update(ref->priv, sband, ista,
- priv_sta, changed);
+ chanctx_conf = rcu_dereference(sta->sdata->vif.chanctx_conf);
+ if (WARN_ON(!chanctx_conf)) {
+ rcu_read_unlock();
+ return;
+ }
+
+ ref->ops->rate_update(ref->priv, sband, &chanctx_conf->def,
+ ista, priv_sta, changed);
+ rcu_read_unlock();
+ }
drv_sta_rc_update(local, sta->sdata, &sta->sta, changed);
}
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index e6512e2ffd20..8b5f7ef7c0c9 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -383,14 +383,18 @@ minstrel_get_rate(void *priv, struct ieee80211_sta *sta,
static void
calc_rate_durations(enum ieee80211_band band,
struct minstrel_rate *d,
- struct ieee80211_rate *rate)
+ struct ieee80211_rate *rate,
+ struct cfg80211_chan_def *chandef)
{
int erp = !!(rate->flags & IEEE80211_RATE_ERP_G);
+ int shift = ieee80211_chandef_get_shift(chandef);
d->perfect_tx_time = ieee80211_frame_duration(band, 1200,
- rate->bitrate, erp, 1);
+ DIV_ROUND_UP(rate->bitrate, 1 << shift), erp, 1,
+ shift);
d->ack_time = ieee80211_frame_duration(band, 10,
- rate->bitrate, erp, 1);
+ DIV_ROUND_UP(rate->bitrate, 1 << shift), erp, 1,
+ shift);
}
static void
@@ -418,21 +422,25 @@ init_sample_table(struct minstrel_sta_info *mi)
static void
minstrel_rate_init(void *priv, struct ieee80211_supported_band *sband,
- struct ieee80211_sta *sta, void *priv_sta)
+ struct cfg80211_chan_def *chandef,
+ struct ieee80211_sta *sta, void *priv_sta)
{
struct minstrel_sta_info *mi = priv_sta;
struct minstrel_priv *mp = priv;
struct ieee80211_rate *ctl_rate;
unsigned int i, n = 0;
unsigned int t_slot = 9; /* FIXME: get real slot time */
+ u32 rate_flags;
mi->sta = sta;
mi->lowest_rix = rate_lowest_index(sband, sta);
ctl_rate = &sband->bitrates[mi->lowest_rix];
mi->sp_ack_dur = ieee80211_frame_duration(sband->band, 10,
ctl_rate->bitrate,
- !!(ctl_rate->flags & IEEE80211_RATE_ERP_G), 1);
+ !!(ctl_rate->flags & IEEE80211_RATE_ERP_G), 1,
+ ieee80211_chandef_get_shift(chandef));
+ rate_flags = ieee80211_chandef_rate_flags(&mp->hw->conf.chandef);
memset(mi->max_tp_rate, 0, sizeof(mi->max_tp_rate));
mi->max_prob_rate = 0;
@@ -441,15 +449,22 @@ minstrel_rate_init(void *priv, struct ieee80211_supported_band *sband,
unsigned int tx_time = 0, tx_time_cts = 0, tx_time_rtscts = 0;
unsigned int tx_time_single;
unsigned int cw = mp->cw_min;
+ int shift;
if (!rate_supported(sta, sband->band, i))
continue;
+ if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
+ continue;
+
n++;
memset(mr, 0, sizeof(*mr));
mr->rix = i;
- mr->bitrate = sband->bitrates[i].bitrate / 5;
- calc_rate_durations(sband->band, mr, &sband->bitrates[i]);
+ shift = ieee80211_chandef_get_shift(chandef);
+ mr->bitrate = DIV_ROUND_UP(sband->bitrates[i].bitrate,
+ (1 << shift) * 5);
+ calc_rate_durations(sband->band, mr, &sband->bitrates[i],
+ chandef);
/* calculate maximum number of retransmissions before
* fallback (based on maximum segment size) */
@@ -547,6 +562,7 @@ minstrel_init_cck_rates(struct minstrel_priv *mp)
{
static const int bitrates[4] = { 10, 20, 55, 110 };
struct ieee80211_supported_band *sband;
+ u32 rate_flags = ieee80211_chandef_rate_flags(&mp->hw->conf.chandef);
int i, j;
sband = mp->hw->wiphy->bands[IEEE80211_BAND_2GHZ];
@@ -559,6 +575,9 @@ minstrel_init_cck_rates(struct minstrel_priv *mp)
if (rate->flags & IEEE80211_RATE_ERP_G)
continue;
+ if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
+ continue;
+
for (j = 0; j < ARRAY_SIZE(bitrates); j++) {
if (rate->bitrate != bitrates[j])
continue;
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index f5aed963b22e..61569425b723 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -844,6 +844,7 @@ minstrel_ht_update_cck(struct minstrel_priv *mp, struct minstrel_ht_sta *mi,
static void
minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
+ struct cfg80211_chan_def *chandef,
struct ieee80211_sta *sta, void *priv_sta)
{
struct minstrel_priv *mp = priv;
@@ -869,8 +870,9 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
mi->sta = sta;
mi->stats_update = jiffies;
- ack_dur = ieee80211_frame_duration(sband->band, 10, 60, 1, 1);
- mi->overhead = ieee80211_frame_duration(sband->band, 0, 60, 1, 1) + ack_dur;
+ ack_dur = ieee80211_frame_duration(sband->band, 10, 60, 1, 1, 0);
+ mi->overhead = ieee80211_frame_duration(sband->band, 0, 60, 1, 1, 0);
+ mi->overhead += ack_dur;
mi->overhead_rtscts = mi->overhead + 2 * ack_dur;
mi->avg_ampdu_len = MINSTREL_FRAC(1, 1);
@@ -939,22 +941,25 @@ use_legacy:
memset(&msp->legacy, 0, sizeof(msp->legacy));
msp->legacy.r = msp->ratelist;
msp->legacy.sample_table = msp->sample_table;
- return mac80211_minstrel.rate_init(priv, sband, sta, &msp->legacy);
+ return mac80211_minstrel.rate_init(priv, sband, chandef, sta,
+ &msp->legacy);
}
static void
minstrel_ht_rate_init(void *priv, struct ieee80211_supported_band *sband,
+ struct cfg80211_chan_def *chandef,
struct ieee80211_sta *sta, void *priv_sta)
{
- minstrel_ht_update_caps(priv, sband, sta, priv_sta);
+ minstrel_ht_update_caps(priv, sband, chandef, sta, priv_sta);
}
static void
minstrel_ht_rate_update(void *priv, struct ieee80211_supported_band *sband,
+ struct cfg80211_chan_def *chandef,
struct ieee80211_sta *sta, void *priv_sta,
u32 changed)
{
- minstrel_ht_update_caps(priv, sband, sta, priv_sta);
+ minstrel_ht_update_caps(priv, sband, chandef, sta, priv_sta);
}
static void *
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index 502d3ecc4a79..958fad07b54c 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -293,6 +293,7 @@ rate_control_pid_get_rate(void *priv, struct ieee80211_sta *sta,
static void
rate_control_pid_rate_init(void *priv, struct ieee80211_supported_band *sband,
+ struct cfg80211_chan_def *chandef,
struct ieee80211_sta *sta, void *priv_sta)
{
struct rc_pid_sta_info *spinfo = priv_sta;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 2c5a79bd3777..6b85f95b9ba1 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -87,11 +87,13 @@ ieee80211_rx_radiotap_space(struct ieee80211_local *local,
int len;
/* always present fields */
- len = sizeof(struct ieee80211_radiotap_header) + 9;
+ len = sizeof(struct ieee80211_radiotap_header) + 8;
- /* allocate extra bitmap */
+ /* allocate extra bitmaps */
if (status->vendor_radiotap_len)
len += 4;
+ if (status->chains)
+ len += 4 * hweight8(status->chains);
if (ieee80211_have_rx_timestamp(status)) {
len = ALIGN(len, 8);
@@ -100,6 +102,10 @@ ieee80211_rx_radiotap_space(struct ieee80211_local *local,
if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
len += 1;
+ /* antenna field, if we don't have per-chain info */
+ if (!status->chains)
+ len += 1;
+
/* padding for RX_FLAGS if necessary */
len = ALIGN(len, 2);
@@ -116,6 +122,11 @@ ieee80211_rx_radiotap_space(struct ieee80211_local *local,
len += 12;
}
+ if (status->chains) {
+ /* antenna and antenna signal fields */
+ len += 2 * hweight8(status->chains);
+ }
+
if (status->vendor_radiotap_len) {
if (WARN_ON_ONCE(status->vendor_radiotap_align == 0))
status->vendor_radiotap_align = 1;
@@ -145,8 +156,12 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_radiotap_header *rthdr;
unsigned char *pos;
+ __le32 *it_present;
+ u32 it_present_val;
u16 rx_flags = 0;
- int mpdulen;
+ u16 channel_flags = 0;
+ int mpdulen, chain;
+ unsigned long chains = status->chains;
mpdulen = skb->len;
if (!(has_fcs && (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)))
@@ -154,25 +169,39 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
rthdr = (struct ieee80211_radiotap_header *)skb_push(skb, rtap_len);
memset(rthdr, 0, rtap_len);
+ it_present = &rthdr->it_present;
/* radiotap header, set always present flags */
- rthdr->it_present =
- cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
- (1 << IEEE80211_RADIOTAP_CHANNEL) |
- (1 << IEEE80211_RADIOTAP_ANTENNA) |
- (1 << IEEE80211_RADIOTAP_RX_FLAGS));
rthdr->it_len = cpu_to_le16(rtap_len + status->vendor_radiotap_len);
+ it_present_val = BIT(IEEE80211_RADIOTAP_FLAGS) |
+ BIT(IEEE80211_RADIOTAP_CHANNEL) |
+ BIT(IEEE80211_RADIOTAP_RX_FLAGS);
- pos = (unsigned char *)(rthdr + 1);
+ if (!status->chains)
+ it_present_val |= BIT(IEEE80211_RADIOTAP_ANTENNA);
+
+ for_each_set_bit(chain, &chains, IEEE80211_MAX_CHAINS) {
+ it_present_val |=
+ BIT(IEEE80211_RADIOTAP_EXT) |
+ BIT(IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE);
+ put_unaligned_le32(it_present_val, it_present);
+ it_present++;
+ it_present_val = BIT(IEEE80211_RADIOTAP_ANTENNA) |
+ BIT(IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
+ }
if (status->vendor_radiotap_len) {
- rthdr->it_present |=
- cpu_to_le32(BIT(IEEE80211_RADIOTAP_VENDOR_NAMESPACE)) |
- cpu_to_le32(BIT(IEEE80211_RADIOTAP_EXT));
- put_unaligned_le32(status->vendor_radiotap_bitmap, pos);
- pos += 4;
+ it_present_val |= BIT(IEEE80211_RADIOTAP_VENDOR_NAMESPACE) |
+ BIT(IEEE80211_RADIOTAP_EXT);
+ put_unaligned_le32(it_present_val, it_present);
+ it_present++;
+ it_present_val = status->vendor_radiotap_bitmap;
}
+ put_unaligned_le32(it_present_val, it_present);
+
+ pos = (void *)(it_present + 1);
+
/* the order of the following fields is important */
/* IEEE80211_RADIOTAP_TSFT */
@@ -207,28 +236,35 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
*/
*pos = 0;
} else {
+ int shift = 0;
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_RATE);
- *pos = rate->bitrate / 5;
+ if (status->flag & RX_FLAG_10MHZ)
+ shift = 1;
+ else if (status->flag & RX_FLAG_5MHZ)
+ shift = 2;
+ *pos = DIV_ROUND_UP(rate->bitrate, 5 * (1 << shift));
}
pos++;
/* IEEE80211_RADIOTAP_CHANNEL */
put_unaligned_le16(status->freq, pos);
pos += 2;
+ if (status->flag & RX_FLAG_10MHZ)
+ channel_flags |= IEEE80211_CHAN_HALF;
+ else if (status->flag & RX_FLAG_5MHZ)
+ channel_flags |= IEEE80211_CHAN_QUARTER;
+
if (status->band == IEEE80211_BAND_5GHZ)
- put_unaligned_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ,
- pos);
+ channel_flags |= IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ;
else if (status->flag & (RX_FLAG_HT | RX_FLAG_VHT))
- put_unaligned_le16(IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ,
- pos);
+ channel_flags |= IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ;
else if (rate && rate->flags & IEEE80211_RATE_ERP_G)
- put_unaligned_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ,
- pos);
+ channel_flags |= IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ;
else if (rate)
- put_unaligned_le16(IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ,
- pos);
+ channel_flags |= IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ;
else
- put_unaligned_le16(IEEE80211_CHAN_2GHZ, pos);
+ channel_flags |= IEEE80211_CHAN_2GHZ;
+ put_unaligned_le16(channel_flags, pos);
pos += 2;
/* IEEE80211_RADIOTAP_DBM_ANTSIGNAL */
@@ -242,9 +278,11 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
/* IEEE80211_RADIOTAP_LOCK_QUALITY is missing */
- /* IEEE80211_RADIOTAP_ANTENNA */
- *pos = status->antenna;
- pos++;
+ if (!status->chains) {
+ /* IEEE80211_RADIOTAP_ANTENNA */
+ *pos = status->antenna;
+ pos++;
+ }
/* IEEE80211_RADIOTAP_DB_ANTNOISE is not used */
@@ -341,6 +379,11 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
pos += 2;
}
+ for_each_set_bit(chain, &chains, IEEE80211_MAX_CHAINS) {
+ *pos++ = status->chain_signal[chain];
+ *pos++ = chain;
+ }
+
if (status->vendor_radiotap_len) {
/* ensure 2 byte alignment for the vendor field as required */
if ((pos - (u8 *)rthdr) & 1)
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 1b122a79b0d8..08afe74b98f4 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -66,6 +66,7 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
struct cfg80211_bss *cbss;
struct ieee80211_bss *bss;
int clen, srlen;
+ enum nl80211_bss_scan_width scan_width;
s32 signal = 0;
if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
@@ -73,8 +74,15 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
signal = (rx_status->signal * 100) / local->hw.max_signal;
- cbss = cfg80211_inform_bss_frame(local->hw.wiphy, channel,
- mgmt, len, signal, GFP_ATOMIC);
+ scan_width = NL80211_BSS_CHAN_WIDTH_20;
+ if (rx_status->flag & RX_FLAG_5MHZ)
+ scan_width = NL80211_BSS_CHAN_WIDTH_5;
+ if (rx_status->flag & RX_FLAG_10MHZ)
+ scan_width = NL80211_BSS_CHAN_WIDTH_10;
+
+ cbss = cfg80211_inform_bss_width_frame(local->hw.wiphy, channel,
+ scan_width, mgmt, len, signal,
+ GFP_ATOMIC);
if (!cbss)
return NULL;
@@ -204,10 +212,29 @@ void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb)
ieee80211_rx_bss_put(local, bss);
}
+static void
+ieee80211_prepare_scan_chandef(struct cfg80211_chan_def *chandef,
+ enum nl80211_bss_scan_width scan_width)
+{
+ memset(chandef, 0, sizeof(*chandef));
+ switch (scan_width) {
+ case NL80211_BSS_CHAN_WIDTH_5:
+ chandef->width = NL80211_CHAN_WIDTH_5;
+ break;
+ case NL80211_BSS_CHAN_WIDTH_10:
+ chandef->width = NL80211_CHAN_WIDTH_10;
+ break;
+ default:
+ chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
+ break;
+ }
+}
+
/* return false if no more work */
static bool ieee80211_prep_hw_scan(struct ieee80211_local *local)
{
struct cfg80211_scan_request *req = local->scan_req;
+ struct cfg80211_chan_def chandef;
enum ieee80211_band band;
int i, ielen, n_chans;
@@ -229,11 +256,12 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local)
} while (!n_chans);
local->hw_scan_req->n_channels = n_chans;
+ ieee80211_prepare_scan_chandef(&chandef, req->scan_width);
ielen = ieee80211_build_preq_ies(local, (u8 *)local->hw_scan_req->ie,
local->hw_scan_ies_bufsize,
req->ie, req->ie_len, band,
- req->rates[band], 0);
+ req->rates[band], &chandef);
local->hw_scan_req->ie_len = ielen;
local->hw_scan_req->no_cck = req->no_cck;
@@ -280,7 +308,7 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted,
rcu_assign_pointer(local->scan_sdata, NULL);
local->scanning = 0;
- local->scan_channel = NULL;
+ local->scan_chandef.chan = NULL;
/* Set power back to normal operating levels. */
ieee80211_hw_config(local, 0);
@@ -615,11 +643,34 @@ static void ieee80211_scan_state_set_channel(struct ieee80211_local *local,
{
int skip;
struct ieee80211_channel *chan;
+ enum nl80211_bss_scan_width oper_scan_width;
skip = 0;
chan = local->scan_req->channels[local->scan_channel_idx];
- local->scan_channel = chan;
+ local->scan_chandef.chan = chan;
+ local->scan_chandef.center_freq1 = chan->center_freq;
+ local->scan_chandef.center_freq2 = 0;
+ switch (local->scan_req->scan_width) {
+ case NL80211_BSS_CHAN_WIDTH_5:
+ local->scan_chandef.width = NL80211_CHAN_WIDTH_5;
+ break;
+ case NL80211_BSS_CHAN_WIDTH_10:
+ local->scan_chandef.width = NL80211_CHAN_WIDTH_10;
+ break;
+ case NL80211_BSS_CHAN_WIDTH_20:
+ /* If scanning on oper channel, use whatever channel-type
+ * is currently in use.
+ */
+ oper_scan_width = cfg80211_chandef_to_scan_width(
+ &local->_oper_chandef);
+ if (chan == local->_oper_chandef.chan &&
+ oper_scan_width == local->scan_req->scan_width)
+ local->scan_chandef = local->_oper_chandef;
+ else
+ local->scan_chandef.width = NL80211_CHAN_WIDTH_20_NOHT;
+ break;
+ }
if (ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL))
skip = 1;
@@ -659,7 +710,7 @@ static void ieee80211_scan_state_suspend(struct ieee80211_local *local,
unsigned long *next_delay)
{
/* switch back to the operating channel */
- local->scan_channel = NULL;
+ local->scan_chandef.chan = NULL;
ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
/* disable PS */
@@ -801,7 +852,8 @@ int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
const u8 *ssid, u8 ssid_len,
- struct ieee80211_channel *chan)
+ struct ieee80211_channel *chan,
+ enum nl80211_bss_scan_width scan_width)
{
struct ieee80211_local *local = sdata->local;
int ret = -EBUSY;
@@ -851,6 +903,7 @@ int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
local->int_scan_req->ssids = &local->scan_ssid;
local->int_scan_req->n_ssids = 1;
+ local->int_scan_req->scan_width = scan_width;
memcpy(local->int_scan_req->ssids[0].ssid, ssid, IEEE80211_MAX_SSID_LEN);
local->int_scan_req->ssids[0].ssid_len = ssid_len;
@@ -912,6 +965,7 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_sched_scan_ies sched_scan_ies = {};
+ struct cfg80211_chan_def chandef;
int ret, i, iebufsz;
iebufsz = 2 + IEEE80211_MAX_SSID_LEN +
@@ -939,10 +993,12 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
goto out_free;
}
+ ieee80211_prepare_scan_chandef(&chandef, req->scan_width);
+
sched_scan_ies.len[i] =
ieee80211_build_preq_ies(local, sched_scan_ies.ie[i],
iebufsz, req->ie, req->ie_len,
- i, (u32) -1, 0);
+ i, (u32) -1, &chandef);
}
ret = drv_sched_scan_start(local, sdata, req, &sched_scan_ies);
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 43439203f4e4..368837fe3b80 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -235,7 +235,8 @@ static int ieee80211_tx_radiotap_len(struct ieee80211_tx_info *info)
/* IEEE80211_RADIOTAP_RATE rate */
if (info->status.rates[0].idx >= 0 &&
- !(info->status.rates[0].flags & IEEE80211_TX_RC_MCS))
+ !(info->status.rates[0].flags & (IEEE80211_TX_RC_MCS |
+ IEEE80211_TX_RC_VHT_MCS)))
len += 2;
/* IEEE80211_RADIOTAP_TX_FLAGS */
@@ -244,17 +245,23 @@ static int ieee80211_tx_radiotap_len(struct ieee80211_tx_info *info)
/* IEEE80211_RADIOTAP_DATA_RETRIES */
len += 1;
- /* IEEE80211_TX_RC_MCS */
- if (info->status.rates[0].idx >= 0 &&
- info->status.rates[0].flags & IEEE80211_TX_RC_MCS)
- len += 3;
+ /* IEEE80211_RADIOTAP_MCS
+ * IEEE80211_RADIOTAP_VHT */
+ if (info->status.rates[0].idx >= 0) {
+ if (info->status.rates[0].flags & IEEE80211_TX_RC_MCS)
+ len += 3;
+ else if (info->status.rates[0].flags & IEEE80211_TX_RC_VHT_MCS)
+ len = ALIGN(len, 2) + 12;
+ }
return len;
}
-static void ieee80211_add_tx_radiotap_header(struct ieee80211_supported_band
- *sband, struct sk_buff *skb,
- int retry_count, int rtap_len)
+static void
+ieee80211_add_tx_radiotap_header(struct ieee80211_local *local,
+ struct ieee80211_supported_band *sband,
+ struct sk_buff *skb, int retry_count,
+ int rtap_len, int shift)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
@@ -279,9 +286,13 @@ static void ieee80211_add_tx_radiotap_header(struct ieee80211_supported_band
/* IEEE80211_RADIOTAP_RATE */
if (info->status.rates[0].idx >= 0 &&
- !(info->status.rates[0].flags & IEEE80211_TX_RC_MCS)) {
+ !(info->status.rates[0].flags & (IEEE80211_TX_RC_MCS |
+ IEEE80211_TX_RC_VHT_MCS))) {
+ u16 rate;
+
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_RATE);
- *pos = sband->bitrates[info->status.rates[0].idx].bitrate / 5;
+ rate = sband->bitrates[info->status.rates[0].idx].bitrate;
+ *pos = DIV_ROUND_UP(rate, 5 * (1 << shift));
/* padding for tx flags */
pos += 2;
}
@@ -306,9 +317,12 @@ static void ieee80211_add_tx_radiotap_header(struct ieee80211_supported_band
*pos = retry_count;
pos++;
- /* IEEE80211_TX_RC_MCS */
- if (info->status.rates[0].idx >= 0 &&
- info->status.rates[0].flags & IEEE80211_TX_RC_MCS) {
+ if (info->status.rates[0].idx < 0)
+ return;
+
+ /* IEEE80211_RADIOTAP_MCS
+ * IEEE80211_RADIOTAP_VHT */
+ if (info->status.rates[0].flags & IEEE80211_TX_RC_MCS) {
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_MCS);
pos[0] = IEEE80211_RADIOTAP_MCS_HAVE_MCS |
IEEE80211_RADIOTAP_MCS_HAVE_GI |
@@ -321,8 +335,48 @@ static void ieee80211_add_tx_radiotap_header(struct ieee80211_supported_band
pos[1] |= IEEE80211_RADIOTAP_MCS_FMT_GF;
pos[2] = info->status.rates[0].idx;
pos += 3;
- }
+ } else if (info->status.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
+ u16 known = local->hw.radiotap_vht_details &
+ (IEEE80211_RADIOTAP_VHT_KNOWN_GI |
+ IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH);
+
+ rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_VHT);
+
+ /* required alignment from rthdr */
+ pos = (u8 *)rthdr + ALIGN(pos - (u8 *)rthdr, 2);
+ /* u16 known - IEEE80211_RADIOTAP_VHT_KNOWN_* */
+ put_unaligned_le16(known, pos);
+ pos += 2;
+
+ /* u8 flags - IEEE80211_RADIOTAP_VHT_FLAG_* */
+ if (info->status.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
+ *pos |= IEEE80211_RADIOTAP_VHT_FLAG_SGI;
+ pos++;
+
+ /* u8 bandwidth */
+ if (info->status.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
+ *pos = 1;
+ else if (info->status.rates[0].flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
+ *pos = 4;
+ else if (info->status.rates[0].flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
+ *pos = 11;
+ else /* IEEE80211_TX_RC_{20_MHZ_WIDTH,FIXME:DUP_DATA} */
+ *pos = 0;
+ pos++;
+
+ /* u8 mcs_nss[4] */
+ *pos = (ieee80211_rate_get_vht_mcs(&info->status.rates[0]) << 4) |
+ ieee80211_rate_get_vht_nss(&info->status.rates[0]);
+ pos += 4;
+
+ /* u8 coding */
+ pos++;
+ /* u8 group_id */
+ pos++;
+ /* u16 partial_aid */
+ pos += 2;
+ }
}
static void ieee80211_report_used_skb(struct ieee80211_local *local,
@@ -424,6 +478,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
bool acked;
struct ieee80211_bar *bar;
int rtap_len;
+ int shift = 0;
for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
if ((info->flags & IEEE80211_TX_CTL_AMPDU) &&
@@ -458,6 +513,8 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
if (!ether_addr_equal(hdr->addr2, sta->sdata->vif.addr))
continue;
+ shift = ieee80211_vif_get_shift(&sta->sdata->vif);
+
if (info->flags & IEEE80211_TX_STATUS_EOSP)
clear_sta_flag(sta, WLAN_STA_SP);
@@ -557,7 +614,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
rcu_read_unlock();
- ieee80211_led_tx(local, 0);
+ ieee80211_led_tx(local);
/* SNMP counters
* Fragments are passed to low-level drivers as separate skbs, so these
@@ -624,7 +681,8 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
dev_kfree_skb(skb);
return;
}
- ieee80211_add_tx_radiotap_header(sband, skb, retry_count, rtap_len);
+ ieee80211_add_tx_radiotap_header(local, sband, skb, retry_count,
+ rtap_len, shift);
/* XXX: is this sufficient for BPF? */
skb_set_mac_header(skb, 0);
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index c215fafd7a2f..1aba645882bd 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -1906,6 +1906,32 @@ TRACE_EVENT(api_radar_detected,
)
);
+TRACE_EVENT(drv_channel_switch_beacon,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_chan_def *chandef),
+
+ TP_ARGS(local, sdata, chandef),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ VIF_ENTRY
+ CHANDEF_ENTRY
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ VIF_ASSIGN;
+ CHANDEF_ASSIGN(chandef);
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT VIF_PR_FMT " channel switch to " CHANDEF_PR_FMT,
+ LOCAL_PR_ARG, VIF_PR_ARG, CHANDEF_PR_ARG
+ )
+);
+
+
#ifdef CONFIG_MAC80211_MESSAGE_TRACING
#undef TRACE_SYSTEM
#define TRACE_SYSTEM mac80211_msg
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 4105d0ca963e..0e42322aa6b1 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -40,12 +40,22 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,
struct sk_buff *skb, int group_addr,
int next_frag_len)
{
- int rate, mrate, erp, dur, i;
+ int rate, mrate, erp, dur, i, shift = 0;
struct ieee80211_rate *txrate;
struct ieee80211_local *local = tx->local;
struct ieee80211_supported_band *sband;
struct ieee80211_hdr *hdr;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_chanctx_conf *chanctx_conf;
+ u32 rate_flags = 0;
+
+ rcu_read_lock();
+ chanctx_conf = rcu_dereference(tx->sdata->vif.chanctx_conf);
+ if (chanctx_conf) {
+ shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
+ rate_flags = ieee80211_chandef_rate_flags(&chanctx_conf->def);
+ }
+ rcu_read_unlock();
/* assume HW handles this */
if (tx->rate.flags & IEEE80211_TX_RC_MCS)
@@ -122,8 +132,11 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,
if (r->bitrate > txrate->bitrate)
break;
+ if ((rate_flags & r->flags) != rate_flags)
+ continue;
+
if (tx->sdata->vif.bss_conf.basic_rates & BIT(i))
- rate = r->bitrate;
+ rate = DIV_ROUND_UP(r->bitrate, 1 << shift);
switch (sband->band) {
case IEEE80211_BAND_2GHZ: {
@@ -150,7 +163,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,
if (rate == -1) {
/* No matching basic rate found; use highest suitable mandatory
* PHY rate */
- rate = mrate;
+ rate = DIV_ROUND_UP(mrate, 1 << shift);
}
/* Don't calculate ACKs for QoS Frames with NoAck Policy set */
@@ -162,7 +175,8 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,
* (10 bytes + 4-byte FCS = 112 bits) plus SIFS; rounded up
* to closest integer */
dur = ieee80211_frame_duration(sband->band, 10, rate, erp,
- tx->sdata->vif.bss_conf.use_short_preamble);
+ tx->sdata->vif.bss_conf.use_short_preamble,
+ shift);
if (next_frag_len) {
/* Frame is fragmented: duration increases with time needed to
@@ -171,7 +185,8 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,
/* next fragment */
dur += ieee80211_frame_duration(sband->band, next_frag_len,
txrate->bitrate, erp,
- tx->sdata->vif.bss_conf.use_short_preamble);
+ tx->sdata->vif.bss_conf.use_short_preamble,
+ shift);
}
return cpu_to_le16(dur);
@@ -1257,6 +1272,10 @@ static bool __ieee80211_tx(struct ieee80211_local *local,
switch (sdata->vif.type) {
case NL80211_IFTYPE_MONITOR:
+ if (sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE) {
+ vif = &sdata->vif;
+ break;
+ }
sdata = rcu_dereference(local->monitor_sdata);
if (sdata) {
vif = &sdata->vif;
@@ -1281,7 +1300,6 @@ static bool __ieee80211_tx(struct ieee80211_local *local,
txpending);
ieee80211_tpt_led_trig_tx(local, fc, led_len);
- ieee80211_led_tx(local, 1);
WARN_ON_ONCE(!skb_queue_empty(skbs));
@@ -2320,6 +2338,81 @@ static int ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,
return 0;
}
+void ieee80211_csa_finish(struct ieee80211_vif *vif)
+{
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+
+ ieee80211_queue_work(&sdata->local->hw,
+ &sdata->csa_finalize_work);
+}
+EXPORT_SYMBOL(ieee80211_csa_finish);
+
+static void ieee80211_update_csa(struct ieee80211_sub_if_data *sdata,
+ struct beacon_data *beacon)
+{
+ struct probe_resp *resp;
+ int counter_offset_beacon = sdata->csa_counter_offset_beacon;
+ int counter_offset_presp = sdata->csa_counter_offset_presp;
+
+ /* warn if the driver did not check for/react to csa completeness */
+ if (WARN_ON(((u8 *)beacon->tail)[counter_offset_beacon] == 0))
+ return;
+
+ ((u8 *)beacon->tail)[counter_offset_beacon]--;
+
+ if (sdata->vif.type == NL80211_IFTYPE_AP &&
+ counter_offset_presp) {
+ rcu_read_lock();
+ resp = rcu_dereference(sdata->u.ap.probe_resp);
+
+ /* if nl80211 accepted the offset, this should not happen. */
+ if (WARN_ON(!resp)) {
+ rcu_read_unlock();
+ return;
+ }
+ resp->data[counter_offset_presp]--;
+ rcu_read_unlock();
+ }
+}
+
+bool ieee80211_csa_is_complete(struct ieee80211_vif *vif)
+{
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct beacon_data *beacon = NULL;
+ u8 *beacon_data;
+ size_t beacon_data_len;
+ int counter_beacon = sdata->csa_counter_offset_beacon;
+ int ret = false;
+
+ if (!ieee80211_sdata_running(sdata))
+ return false;
+
+ rcu_read_lock();
+ if (vif->type == NL80211_IFTYPE_AP) {
+ struct ieee80211_if_ap *ap = &sdata->u.ap;
+
+ beacon = rcu_dereference(ap->beacon);
+ if (WARN_ON(!beacon || !beacon->tail))
+ goto out;
+ beacon_data = beacon->tail;
+ beacon_data_len = beacon->tail_len;
+ } else {
+ WARN_ON(1);
+ goto out;
+ }
+
+ if (WARN_ON(counter_beacon > beacon_data_len))
+ goto out;
+
+ if (beacon_data[counter_beacon] == 0)
+ ret = true;
+ out:
+ rcu_read_unlock();
+
+ return ret;
+}
+EXPORT_SYMBOL(ieee80211_csa_is_complete);
+
struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
u16 *tim_offset, u16 *tim_length)
@@ -2350,6 +2443,9 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
struct beacon_data *beacon = rcu_dereference(ap->beacon);
if (beacon) {
+ if (sdata->vif.csa_active)
+ ieee80211_update_csa(sdata, beacon);
+
/*
* headroom, head length,
* tail length and maximum TIM length
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 22654452a561..d23c5a705a68 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -107,7 +107,8 @@ void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx)
}
int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
- int rate, int erp, int short_preamble)
+ int rate, int erp, int short_preamble,
+ int shift)
{
int dur;
@@ -118,6 +119,9 @@ int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
*
* rate is in 100 kbps, so divident is multiplied by 10 in the
* DIV_ROUND_UP() operations.
+ *
+ * shift may be 2 for 5 MHz channels or 1 for 10 MHz channels, and
+ * is assumed to be 0 otherwise.
*/
if (band == IEEE80211_BAND_5GHZ || erp) {
@@ -130,13 +134,23 @@ int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
* TXTIME = T_PREAMBLE + T_SIGNAL + T_SYM x N_SYM + Signal Ext
*
* T_SYM = 4 usec
- * 802.11a - 17.5.2: aSIFSTime = 16 usec
+ * 802.11a - 18.5.2: aSIFSTime = 16 usec
* 802.11g - 19.8.4: aSIFSTime = 10 usec +
* signal ext = 6 usec
*/
dur = 16; /* SIFS + signal ext */
- dur += 16; /* 17.3.2.3: T_PREAMBLE = 16 usec */
- dur += 4; /* 17.3.2.3: T_SIGNAL = 4 usec */
+ dur += 16; /* IEEE 802.11-2012 18.3.2.4: T_PREAMBLE = 16 usec */
+ dur += 4; /* IEEE 802.11-2012 18.3.2.4: T_SIGNAL = 4 usec */
+
+ /* IEEE 802.11-2012 18.3.2.4: all values above are:
+ * * times 4 for 5 MHz
+ * * times 2 for 10 MHz
+ */
+ dur *= 1 << shift;
+
+ /* rates should already consider the channel bandwidth,
+ * don't apply divisor again.
+ */
dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10,
4 * rate); /* T_SYM x N_SYM */
} else {
@@ -168,7 +182,7 @@ __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw,
{
struct ieee80211_sub_if_data *sdata;
u16 dur;
- int erp;
+ int erp, shift = 0;
bool short_preamble = false;
erp = 0;
@@ -177,10 +191,11 @@ __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw,
short_preamble = sdata->vif.bss_conf.use_short_preamble;
if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
erp = rate->flags & IEEE80211_RATE_ERP_G;
+ shift = ieee80211_vif_get_shift(vif);
}
dur = ieee80211_frame_duration(band, frame_len, rate->bitrate, erp,
- short_preamble);
+ short_preamble, shift);
return cpu_to_le16(dur);
}
@@ -194,7 +209,7 @@ __le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
struct ieee80211_rate *rate;
struct ieee80211_sub_if_data *sdata;
bool short_preamble;
- int erp;
+ int erp, shift = 0, bitrate;
u16 dur;
struct ieee80211_supported_band *sband;
@@ -210,17 +225,20 @@ __le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
short_preamble = sdata->vif.bss_conf.use_short_preamble;
if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
erp = rate->flags & IEEE80211_RATE_ERP_G;
+ shift = ieee80211_vif_get_shift(vif);
}
+ bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift);
+
/* CTS duration */
- dur = ieee80211_frame_duration(sband->band, 10, rate->bitrate,
- erp, short_preamble);
+ dur = ieee80211_frame_duration(sband->band, 10, bitrate,
+ erp, short_preamble, shift);
/* Data frame duration */
- dur += ieee80211_frame_duration(sband->band, frame_len, rate->bitrate,
- erp, short_preamble);
+ dur += ieee80211_frame_duration(sband->band, frame_len, bitrate,
+ erp, short_preamble, shift);
/* ACK duration */
- dur += ieee80211_frame_duration(sband->band, 10, rate->bitrate,
- erp, short_preamble);
+ dur += ieee80211_frame_duration(sband->band, 10, bitrate,
+ erp, short_preamble, shift);
return cpu_to_le16(dur);
}
@@ -235,7 +253,7 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
struct ieee80211_rate *rate;
struct ieee80211_sub_if_data *sdata;
bool short_preamble;
- int erp;
+ int erp, shift = 0, bitrate;
u16 dur;
struct ieee80211_supported_band *sband;
@@ -250,15 +268,18 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
short_preamble = sdata->vif.bss_conf.use_short_preamble;
if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
erp = rate->flags & IEEE80211_RATE_ERP_G;
+ shift = ieee80211_vif_get_shift(vif);
}
+ bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift);
+
/* Data frame duration */
- dur = ieee80211_frame_duration(sband->band, frame_len, rate->bitrate,
- erp, short_preamble);
+ dur = ieee80211_frame_duration(sband->band, frame_len, bitrate,
+ erp, short_preamble, shift);
if (!(frame_txctl->flags & IEEE80211_TX_CTL_NO_ACK)) {
/* ACK duration */
- dur += ieee80211_frame_duration(sband->band, 10, rate->bitrate,
- erp, short_preamble);
+ dur += ieee80211_frame_duration(sband->band, 10, bitrate,
+ erp, short_preamble, shift);
}
return cpu_to_le16(dur);
@@ -1052,32 +1073,6 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
}
}
-void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
- const size_t supp_rates_len,
- const u8 *supp_rates)
-{
- struct ieee80211_chanctx_conf *chanctx_conf;
- int i, have_higher_than_11mbit = 0;
-
- /* cf. IEEE 802.11 9.2.12 */
- for (i = 0; i < supp_rates_len; i++)
- if ((supp_rates[i] & 0x7f) * 5 > 110)
- have_higher_than_11mbit = 1;
-
- rcu_read_lock();
- chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
-
- if (chanctx_conf &&
- chanctx_conf->def.chan->band == IEEE80211_BAND_2GHZ &&
- have_higher_than_11mbit)
- sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
- else
- sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
- rcu_read_unlock();
-
- ieee80211_set_wmm_default(sdata, true);
-}
-
void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
u16 transaction, u16 auth_alg, u16 status,
const u8 *extra, size_t extra_len, const u8 *da,
@@ -1162,7 +1157,7 @@ void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
size_t buffer_len, const u8 *ie, size_t ie_len,
enum ieee80211_band band, u32 rate_mask,
- u8 channel)
+ struct cfg80211_chan_def *chandef)
{
struct ieee80211_supported_band *sband;
u8 *pos = buffer, *end = buffer + buffer_len;
@@ -1171,16 +1166,26 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
u8 rates[32];
int num_rates;
int ext_rates_len;
+ int shift;
+ u32 rate_flags;
sband = local->hw.wiphy->bands[band];
if (WARN_ON_ONCE(!sband))
return 0;
+ rate_flags = ieee80211_chandef_rate_flags(chandef);
+ shift = ieee80211_chandef_get_shift(chandef);
+
num_rates = 0;
for (i = 0; i < sband->n_bitrates; i++) {
if ((BIT(i) & rate_mask) == 0)
continue; /* skip rate */
- rates[num_rates++] = (u8) (sband->bitrates[i].bitrate / 5);
+ if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
+ continue;
+
+ rates[num_rates++] =
+ (u8) DIV_ROUND_UP(sband->bitrates[i].bitrate,
+ (1 << shift) * 5);
}
supp_rates_len = min_t(int, num_rates, 8);
@@ -1220,12 +1225,13 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
pos += ext_rates_len;
}
- if (channel && sband->band == IEEE80211_BAND_2GHZ) {
+ if (chandef->chan && sband->band == IEEE80211_BAND_2GHZ) {
if (end - pos < 3)
goto out_err;
*pos++ = WLAN_EID_DS_PARAMS;
*pos++ = 1;
- *pos++ = channel;
+ *pos++ = ieee80211_frequency_to_channel(
+ chandef->chan->center_freq);
}
/* insert custom IEs that go before HT */
@@ -1290,9 +1296,9 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
bool directed)
{
struct ieee80211_local *local = sdata->local;
+ struct cfg80211_chan_def chandef;
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
- u8 chan_no;
int ies_len;
/*
@@ -1300,10 +1306,11 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
* in order to maximize the chance that we get a response. Some
* badly-behaved APs don't respond when this parameter is included.
*/
+ chandef.width = sdata->vif.bss_conf.chandef.width;
if (directed)
- chan_no = 0;
+ chandef.chan = NULL;
else
- chan_no = ieee80211_frequency_to_channel(chan->center_freq);
+ chandef.chan = chan;
skb = ieee80211_probereq_get(&local->hw, &sdata->vif,
ssid, ssid_len, 100 + ie_len);
@@ -1313,7 +1320,7 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
ies_len = ieee80211_build_preq_ies(local, skb_tail_pointer(skb),
skb_tailroom(skb),
ie, ie_len, chan->band,
- ratemask, chan_no);
+ ratemask, &chandef);
skb_put(skb, ies_len);
if (dst) {
@@ -1347,16 +1354,19 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
}
}
-u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
+u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
struct ieee802_11_elems *elems,
enum ieee80211_band band, u32 *basic_rates)
{
struct ieee80211_supported_band *sband;
struct ieee80211_rate *bitrates;
size_t num_rates;
- u32 supp_rates;
- int i, j;
- sband = local->hw.wiphy->bands[band];
+ u32 supp_rates, rate_flags;
+ int i, j, shift;
+ sband = sdata->local->hw.wiphy->bands[band];
+
+ rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef);
+ shift = ieee80211_vif_get_shift(&sdata->vif);
if (WARN_ON(!sband))
return 1;
@@ -1381,7 +1391,15 @@ u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
continue;
for (j = 0; j < num_rates; j++) {
- if (bitrates[j].bitrate == own_rate) {
+ int brate;
+ if ((rate_flags & sband->bitrates[j].flags)
+ != rate_flags)
+ continue;
+
+ brate = DIV_ROUND_UP(sband->bitrates[j].bitrate,
+ 1 << shift);
+
+ if (brate == own_rate) {
supp_rates |= BIT(j);
if (basic_rates && is_basic)
*basic_rates |= BIT(j);
@@ -2004,18 +2022,56 @@ void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
cfg80211_chandef_create(chandef, control_chan, channel_type);
}
+int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
+ const struct ieee80211_supported_band *sband,
+ const u8 *srates, int srates_len, u32 *rates)
+{
+ u32 rate_flags = ieee80211_chandef_rate_flags(chandef);
+ int shift = ieee80211_chandef_get_shift(chandef);
+ struct ieee80211_rate *br;
+ int brate, rate, i, j, count = 0;
+
+ *rates = 0;
+
+ for (i = 0; i < srates_len; i++) {
+ rate = srates[i] & 0x7f;
+
+ for (j = 0; j < sband->n_bitrates; j++) {
+ br = &sband->bitrates[j];
+ if ((rate_flags & br->flags) != rate_flags)
+ continue;
+
+ brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5);
+ if (brate == rate) {
+ *rates |= BIT(j);
+ count++;
+ break;
+ }
+ }
+ }
+ return count;
+}
+
int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb, bool need_basic,
enum ieee80211_band band)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
- int rate;
+ int rate, shift;
u8 i, rates, *pos;
u32 basic_rates = sdata->vif.bss_conf.basic_rates;
+ u32 rate_flags;
+ shift = ieee80211_vif_get_shift(&sdata->vif);
+ rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef);
sband = local->hw.wiphy->bands[band];
- rates = sband->n_bitrates;
+ rates = 0;
+ for (i = 0; i < sband->n_bitrates; i++) {
+ if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
+ continue;
+ rates++;
+ }
if (rates > 8)
rates = 8;
@@ -2027,10 +2083,15 @@ int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
*pos++ = rates;
for (i = 0; i < rates; i++) {
u8 basic = 0;
+ if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
+ continue;
+
if (need_basic && basic_rates & BIT(i))
basic = 0x80;
rate = sband->bitrates[i].bitrate;
- *pos++ = basic | (u8) (rate / 5);
+ rate = DIV_ROUND_UP(sband->bitrates[i].bitrate,
+ 5 * (1 << shift));
+ *pos++ = basic | (u8) rate;
}
return 0;
@@ -2042,12 +2103,22 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
- int rate;
+ int rate, skip, shift;
u8 i, exrates, *pos;
u32 basic_rates = sdata->vif.bss_conf.basic_rates;
+ u32 rate_flags;
+
+ rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef);
+ shift = ieee80211_vif_get_shift(&sdata->vif);
sband = local->hw.wiphy->bands[band];
- exrates = sband->n_bitrates;
+ exrates = 0;
+ for (i = 0; i < sband->n_bitrates; i++) {
+ if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
+ continue;
+ exrates++;
+ }
+
if (exrates > 8)
exrates -= 8;
else
@@ -2060,12 +2131,19 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
pos = skb_put(skb, exrates + 2);
*pos++ = WLAN_EID_EXT_SUPP_RATES;
*pos++ = exrates;
+ skip = 0;
for (i = 8; i < sband->n_bitrates; i++) {
u8 basic = 0;
+ if ((rate_flags & sband->bitrates[i].flags)
+ != rate_flags)
+ continue;
+ if (skip++ < 8)
+ continue;
if (need_basic && basic_rates & BIT(i))
basic = 0x80;
- rate = sband->bitrates[i].bitrate;
- *pos++ = basic | (u8) (rate / 5);
+ rate = DIV_ROUND_UP(sband->bitrates[i].bitrate,
+ 5 * (1 << shift));
+ *pos++ = basic | (u8) rate;
}
}
return 0;
@@ -2149,9 +2227,17 @@ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
ri.flags |= RATE_INFO_FLAGS_SHORT_GI;
} else {
struct ieee80211_supported_band *sband;
+ int shift = 0;
+ int bitrate;
+
+ if (status->flag & RX_FLAG_10MHZ)
+ shift = 1;
+ if (status->flag & RX_FLAG_5MHZ)
+ shift = 2;
sband = local->hw.wiphy->bands[status->band];
- ri.legacy = sband->bitrates[status->rate_idx].bitrate;
+ bitrate = sband->bitrates[status->rate_idx].bitrate;
+ ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift));
}
rate = cfg80211_calculate_bitrate(&ri);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.