---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -1048,6 +1048,8 @@ static int ath9k_start(struct ieee80211_
- "Starting driver with initial channel: %d MHz\n",
- curchan->center_freq);
+--- a/include/net/cfg80211.h
++++ b/include/net/cfg80211.h
+@@ -1122,6 +1122,7 @@ struct cfg80211_ibss_params {
+ u8 *ssid;
+ u8 *bssid;
+ struct ieee80211_channel *channel;
++ enum nl80211_channel_type channel_type;
+ u8 *ie;
+ u8 ssid_len, ie_len;
+ u16 beacon_interval;
+@@ -3188,6 +3189,16 @@ void cfg80211_gtk_rekey_notify(struct ne
+ void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
+ const u8 *bssid, bool preauth, gfp_t gfp);
-+ ath9k_ps_wakeup(sc);
++/**
++ * cfg80211_can_use_ext_chan - test if ht40 on extension channel can be used
++ * @wiphy: the wiphy
++ * @chan: main channel
++ * @channel_type: HT mode
++ */
++bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
++ struct ieee80211_channel *chan,
++ enum nl80211_channel_type channel_type);
+
- mutex_lock(&sc->mutex);
+ /* Logging, debugging and troubleshooting/diagnostic helpers. */
- /* setup initial channel */
-@@ -1143,6 +1145,8 @@ static int ath9k_start(struct ieee80211_
- mutex_unlock:
- mutex_unlock(&sc->mutex);
+ /* wiphy_printk helpers, similar to dev_printk */
+--- a/net/mac80211/agg-rx.c
++++ b/net/mac80211/agg-rx.c
+@@ -180,6 +180,10 @@ static void ieee80211_send_addba_resp(st
+ memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
+ else if (sdata->vif.type == NL80211_IFTYPE_STATION)
+ memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
++ else if (sdata->vif.type == NL80211_IFTYPE_WDS)
++ memcpy(mgmt->bssid, da, ETH_ALEN);
++ else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
++ memcpy(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN);
-+ ath9k_ps_restore(sc);
-+
- return r;
- }
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_ACTION);
+--- a/net/mac80211/agg-tx.c
++++ b/net/mac80211/agg-tx.c
+@@ -77,10 +77,13 @@ static void ieee80211_send_addba_request
+ memcpy(mgmt->da, da, ETH_ALEN);
+ memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
+ if (sdata->vif.type == NL80211_IFTYPE_AP ||
+- sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
++ sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
++ sdata->vif.type == NL80211_IFTYPE_WDS)
+ memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
+ else if (sdata->vif.type == NL80211_IFTYPE_STATION)
+ memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
++ else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
++ memcpy(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN);
+
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_ACTION);
+@@ -397,7 +400,9 @@ int ieee80211_start_tx_ba_session(struct
+ */
+ if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+ sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
+- sdata->vif.type != NL80211_IFTYPE_AP)
++ sdata->vif.type != NL80211_IFTYPE_AP &&
++ sdata->vif.type != NL80211_IFTYPE_ADHOC &&
++ sdata->vif.type != NL80211_IFTYPE_WDS)
+ return -EINVAL;
+ if (test_sta_flag(sta, WLAN_STA_BLOCK_BA)) {
+--- a/net/mac80211/debugfs_sta.c
++++ b/net/mac80211/debugfs_sta.c
+@@ -63,11 +63,11 @@ static ssize_t sta_flags_read(struct fil
+ test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : ""
+
+ int res = scnprintf(buf, sizeof(buf),
+- "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
++ "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
+ TEST(AUTH), TEST(ASSOC), TEST(PS_STA),
+ TEST(PS_DRIVER), TEST(AUTHORIZED),
+ TEST(SHORT_PREAMBLE), TEST(ASSOC_AP),
+- TEST(WME), TEST(WDS), TEST(CLEAR_PS_FILT),
++ TEST(WME), TEST(CLEAR_PS_FILT),
+ TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL),
+ TEST(UAPSD), TEST(SP), TEST(TDLS_PEER),
+ TEST(TDLS_PEER_AUTH));
+--- a/net/mac80211/ht.c
++++ b/net/mac80211/ht.c
+@@ -199,6 +199,8 @@ void ieee80211_send_delba(struct ieee802
+ memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
+ else if (sdata->vif.type == NL80211_IFTYPE_STATION)
+ memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
++ else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
++ memcpy(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN);
+
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_ACTION);
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
-@@ -661,7 +661,6 @@ static void ieee80211_sta_find_ibss(stru
- static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
- struct sk_buff *req)
+@@ -77,6 +77,7 @@ static void __ieee80211_sta_join_ibss(st
+ struct cfg80211_bss *bss;
+ u32 bss_change;
+ u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
++ enum nl80211_channel_type channel_type;
+
+ lockdep_assert_held(&ifibss->mtx);
+
+@@ -104,8 +105,16 @@ static void __ieee80211_sta_join_ibss(st
+
+ sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;
+
+- local->oper_channel = chan;
+- WARN_ON(!ieee80211_set_channel_type(local, sdata, NL80211_CHAN_NO_HT));
++ channel_type = ifibss->channel_type;
++ if (channel_type > NL80211_CHAN_HT20 &&
++ !cfg80211_can_beacon_sec_chan(local->hw.wiphy, chan, channel_type))
++ channel_type = NL80211_CHAN_HT20;
++ if (!ieee80211_set_channel_type(local, sdata, channel_type)) {
++ /* can only fail due to HT40+/- mismatch */
++ channel_type = NL80211_CHAN_HT20;
++ WARN_ON(!ieee80211_set_channel_type(local, sdata,
++ NL80211_CHAN_HT20));
++ }
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
+
+ sband = local->hw.wiphy->bands[chan->band];
+@@ -171,6 +180,18 @@ static void __ieee80211_sta_join_ibss(st
+ memcpy(skb_put(skb, ifibss->ie_len),
+ ifibss->ie, ifibss->ie_len);
+
++ /* add HT capability and information IEs */
++ if (channel_type && sband->ht_cap.ht_supported) {
++ pos = skb_put(skb, 4 +
++ sizeof(struct ieee80211_ht_cap) +
++ sizeof(struct ieee80211_ht_info));
++ pos = ieee80211_ie_build_ht_cap(pos, sband, sband->ht_cap.cap);
++ pos = ieee80211_ie_build_ht_info(pos,
++ &sband->ht_cap,
++ chan,
++ channel_type);
++ }
++
+ if (local->hw.queues >= 4) {
+ pos = skb_put(skb, 9);
+ *pos++ = WLAN_EID_VENDOR_SPECIFIC;
+@@ -194,6 +215,7 @@ static void __ieee80211_sta_join_ibss(st
+ bss_change |= BSS_CHANGED_BEACON;
+ bss_change |= BSS_CHANGED_BEACON_ENABLED;
+ bss_change |= BSS_CHANGED_BASIC_RATES;
++ bss_change |= BSS_CHANGED_HT;
+ bss_change |= BSS_CHANGED_IBSS;
+ sdata->vif.bss_conf.ibss_joined = true;
+ ieee80211_bss_info_change_notify(sdata, bss_change);
+@@ -266,6 +288,7 @@ static void ieee80211_rx_bss_info(struct
+ u64 beacon_timestamp, rx_timestamp;
+ u32 supp_rates = 0;
+ enum ieee80211_band band = rx_status->band;
++ struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
+
+ if (elems->ds_params && elems->ds_params_len == 1)
+ freq = ieee80211_channel_to_frequency(elems->ds_params[0],
+@@ -275,7 +298,10 @@ static void ieee80211_rx_bss_info(struct
+
+ channel = ieee80211_get_channel(local->hw.wiphy, freq);
+
+- if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
++ if (!channel ||
++ channel->flags & (IEEE80211_CHAN_DISABLED ||
++ IEEE80211_CHAN_NO_IBSS ||
++ IEEE80211_CHAN_RADAR))
+ return;
+
+ if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
+@@ -313,8 +339,41 @@ static void ieee80211_rx_bss_info(struct
+ GFP_ATOMIC);
+ }
+
+- if (sta && elems->wmm_info)
+- set_sta_flag(sta, WLAN_STA_WME);
++ if (sta) {
++ if (elems->wmm_info)
++ set_sta_flag(sta, WLAN_STA_WME);
++
++ /* we both use HT */
++ if (elems->ht_info_elem && elems->ht_cap_elem &&
++ sdata->u.ibss.channel_type) {
++ enum nl80211_channel_type channel_type =
++ ieee80211_ht_info_to_channel_type(
++ elems->ht_info_elem);
++ struct ieee80211_sta_ht_cap sta_ht_cap_new;
++
++ /*
++ * fall back to HT20 if we don't use or use
++ * the other extension channel
++ */
++ if (channel_type > NL80211_CHAN_HT20 &&
++ channel_type != sdata->u.ibss.channel_type)
++ channel_type = NL80211_CHAN_HT20;
++
++ ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
++ elems->ht_cap_elem,
++ &sta_ht_cap_new);
++ if (memcmp(&sta->sta.ht_cap, &sta_ht_cap_new,
++ sizeof(sta_ht_cap_new))) {
++ memcpy(&sta->sta.ht_cap,
++ &sta_ht_cap_new,
++ sizeof(sta_ht_cap_new));
++ rate_control_rate_update(local, sband,
++ sta,
++ IEEE80211_RC_HT_CHANGED,
++ channel_type);
++ }
++ }
++ }
+
+ rcu_read_unlock();
+ }
+@@ -896,10 +955,15 @@ int ieee80211_ibss_join(struct ieee80211
+ struct sk_buff *skb;
+
+ skb = dev_alloc_skb(sdata->local->hw.extra_tx_headroom +
+- 36 /* bitrates */ +
+- 34 /* SSID */ +
+- 3 /* DS params */ +
+- 4 /* IBSS params */ +
++ sizeof(struct ieee80211_hdr_3addr) +
++ 12 /* struct ieee80211_mgmt.u.beacon */ +
++ 2 + IEEE80211_MAX_SSID_LEN /* max SSID */ +
++ 2 + 8 /* max Supported Rates */ +
++ 3 /* max DS params */ +
++ 4 /* IBSS params */ +
++ 2 + (IEEE80211_MAX_SUPP_RATES - 8) +
++ 2 + sizeof(struct ieee80211_ht_cap) +
++ 2 + sizeof(struct ieee80211_ht_info) +
+ params->ie_len);
+ if (!skb)
+ return -ENOMEM;
+@@ -920,13 +984,15 @@ int ieee80211_ibss_join(struct ieee80211
+ sdata->vif.bss_conf.beacon_int = params->beacon_interval;
+
+ sdata->u.ibss.channel = params->channel;
++ sdata->u.ibss.channel_type = params->channel_type;
+ sdata->u.ibss.fixed_channel = params->channel_fixed;
+
+ /* fix ourselves to that channel now already */
+ if (params->channel_fixed) {
+ sdata->local->oper_channel = params->channel;
+- WARN_ON(!ieee80211_set_channel_type(sdata->local, sdata,
+- NL80211_CHAN_NO_HT));
++ if (!ieee80211_set_channel_type(sdata->local, sdata,
++ params->channel_type))
++ return -EINVAL;
+ }
+
+ if (params->ie) {
+--- a/net/mac80211/ieee80211_i.h
++++ b/net/mac80211/ieee80211_i.h
+@@ -465,6 +465,7 @@ struct ieee80211_if_ibss {
+ u8 ssid_len, ie_len;
+ u8 *ie;
+ struct ieee80211_channel *channel;
++ enum nl80211_channel_type channel_type;
+
+ unsigned long ibss_join_req;
+ /* probe response/beacon for IBSS */
+@@ -1339,6 +1340,12 @@ void ieee80211_recalc_smps(struct ieee80
+ size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
+ const u8 *ids, int n_ids, size_t offset);
+ size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
++u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_supported_band *sband,
++ u16 cap);
++u8 *ieee80211_ie_build_ht_info(u8 *pos,
++ struct ieee80211_sta_ht_cap *ht_cap,
++ struct ieee80211_channel *channel,
++ enum nl80211_channel_type channel_type);
+
+ /* internal work items */
+ void ieee80211_work_init(struct ieee80211_local *local);
+@@ -1367,6 +1374,8 @@ ieee80211_get_channel_mode(struct ieee80
+ bool ieee80211_set_channel_type(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ enum nl80211_channel_type chantype);
++enum nl80211_channel_type
++ieee80211_ht_info_to_channel_type(struct ieee80211_ht_info *ht_info);
+
+ #ifdef CONFIG_MAC80211_NOINLINE
+ #define debug_noinline noinline
+--- a/net/mac80211/iface.c
++++ b/net/mac80211/iface.c
+@@ -178,7 +178,6 @@ static int ieee80211_do_open(struct net_
{
-- struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(req);
- struct ieee80211_mgmt *mgmt = (void *)req->data;
- struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
-@@ -685,7 +684,7 @@ static void ieee80211_rx_mgmt_probe_req(
- mgmt->bssid, tx_last_beacon);
- #endif /* CONFIG_MAC80211_IBSS_DEBUG */
+- struct sta_info *sta;
+ u32 changed = 0;
+ int res;
+ u32 hw_reconf_flags = 0;
+@@ -290,27 +289,6 @@ static int ieee80211_do_open(struct net_
-- if (!tx_last_beacon && !(rx_status->rx_flags & IEEE80211_RX_RA_MATCH))
-+ if (!tx_last_beacon && is_multicast_ether_addr(mgmt->da))
- return;
+ set_bit(SDATA_STATE_RUNNING, &sdata->state);
- if (memcmp(mgmt->bssid, ifibss->bssid, ETH_ALEN) != 0 &&
---- a/net/mac80211/rc80211_minstrel_ht.c
-+++ b/net/mac80211/rc80211_minstrel_ht.c
-@@ -659,18 +659,14 @@ minstrel_ht_update_caps(void *priv, stru
- struct ieee80211_mcs_info *mcs = &sta->ht_cap.mcs;
- struct ieee80211_local *local = hw_to_local(mp->hw);
- u16 sta_cap = sta->ht_cap.cap;
-+ int n_supported = 0;
- int ack_dur;
- int stbc;
- int i;
-
- /* fall back to the old minstrel for legacy stations */
-- if (!sta->ht_cap.ht_supported) {
-- msp->is_ht = false;
-- 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);
+- if (sdata->vif.type == NL80211_IFTYPE_WDS) {
+- /* Create STA entry for the WDS peer */
+- sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
+- GFP_KERNEL);
+- if (!sta) {
+- res = -ENOMEM;
+- goto err_del_interface;
+- }
+-
+- /* no atomic bitop required since STA is not live yet */
+- set_sta_flag(sta, WLAN_STA_AUTHORIZED);
+-
+- res = sta_info_insert(sta);
+- if (res) {
+- /* STA has been freed */
+- goto err_del_interface;
+- }
+-
+- rate_control_rate_init(sta);
- }
-+ if (!sta->ht_cap.ht_supported)
-+ goto use_legacy;
+-
+ /*
+ * set_multicast_list will be invoked by the networking core
+ * which will check whether any increments here were done in
+@@ -344,8 +322,7 @@ static int ieee80211_do_open(struct net_
+ netif_tx_start_all_queues(dev);
- BUILD_BUG_ON(ARRAY_SIZE(minstrel_mcs_groups) !=
- MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS);
-@@ -725,7 +721,22 @@ minstrel_ht_update_caps(void *priv, stru
+ return 0;
+- err_del_interface:
+- drv_remove_interface(local, &sdata->vif);
++
+ err_stop:
+ if (!local->open_count)
+ drv_stop(local);
+@@ -716,6 +693,70 @@ static void ieee80211_if_setup(struct ne
+ dev->destructor = free_netdev;
+ }
- mi->groups[i].supported =
- mcs->rx_mask[minstrel_mcs_groups[i].streams - 1];
++static void ieee80211_wds_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
++ struct sk_buff *skb)
++{
++ struct ieee80211_local *local = sdata->local;
++ struct ieee80211_rx_status *rx_status;
++ struct ieee802_11_elems elems;
++ struct ieee80211_mgmt *mgmt;
++ struct sta_info *sta;
++ size_t baselen;
++ u32 rates = 0;
++ u16 stype;
++ bool new = false;
++ enum ieee80211_band band = local->hw.conf.channel->band;
++ struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
++
++ rx_status = IEEE80211_SKB_RXCB(skb);
++ mgmt = (struct ieee80211_mgmt *) skb->data;
++ stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE;
++
++ if (stype != IEEE80211_STYPE_BEACON)
++ return;
++
++ baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
++ if (baselen > skb->len)
++ return;
++
++ ieee802_11_parse_elems(mgmt->u.probe_resp.variable,
++ skb->len - baselen, &elems);
++
++ rates = ieee80211_sta_get_rates(local, &elems, band);
++
++ rcu_read_lock();
++
++ sta = sta_info_get(sdata, sdata->u.wds.remote_addr);
++
++ if (!sta) {
++ rcu_read_unlock();
++ sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
++ GFP_KERNEL);
++ if (!sta)
++ return;
++
++ new = true;
++ }
++
++ sta->last_rx = jiffies;
++ sta->sta.supp_rates[local->hw.conf.channel->band] = rates;
++
++ if (elems.ht_cap_elem)
++ ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
++ elems.ht_cap_elem, &sta->sta.ht_cap);
+
-+ if (mi->groups[i].supported)
-+ n_supported++;
++ if (elems.wmm_param)
++ set_sta_flag(sta, WLAN_STA_WME);
++
++ if (new) {
++ set_sta_flag(sta, WLAN_STA_AUTHORIZED);
++ rate_control_rate_init(sta);
++ sta_info_insert_rcu(sta);
++ }
++
++ rcu_read_unlock();
++}
++
+ static void ieee80211_iface_work(struct work_struct *work)
+ {
+ struct ieee80211_sub_if_data *sdata =
+@@ -820,6 +861,9 @@ static void ieee80211_iface_work(struct
+ break;
+ ieee80211_mesh_rx_queued_mgmt(sdata, skb);
+ break;
++ case NL80211_IFTYPE_WDS:
++ ieee80211_wds_rx_queued_mgmt(sdata, skb);
++ break;
+ default:
+ WARN(1, "frame for unexpected interface type");
+ break;
+--- a/net/mac80211/rx.c
++++ b/net/mac80211/rx.c
+@@ -2211,7 +2211,9 @@ ieee80211_rx_h_action(struct ieee80211_r
+ */
+ if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+ sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
+- sdata->vif.type != NL80211_IFTYPE_AP)
++ sdata->vif.type != NL80211_IFTYPE_AP &&
++ sdata->vif.type != NL80211_IFTYPE_ADHOC &&
++ sdata->vif.type != NL80211_IFTYPE_WDS)
+ break;
+
+ /* verify action_code is present */
+@@ -2426,13 +2428,14 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
+
+ if (!ieee80211_vif_is_mesh(&sdata->vif) &&
+ sdata->vif.type != NL80211_IFTYPE_ADHOC &&
+- sdata->vif.type != NL80211_IFTYPE_STATION)
++ sdata->vif.type != NL80211_IFTYPE_STATION &&
++ sdata->vif.type != NL80211_IFTYPE_WDS)
+ return RX_DROP_MONITOR;
+
+ switch (stype) {
+ case cpu_to_le16(IEEE80211_STYPE_BEACON):
+ case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP):
+- /* process for all: mesh, mlme, ibss */
++ /* process for all: mesh, mlme, ibss, wds */
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
+ case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
+@@ -2775,10 +2778,16 @@ static int prepare_for_handlers(struct i
+ }
+ break;
+ case NL80211_IFTYPE_WDS:
+- if (bssid || !ieee80211_is_data(hdr->frame_control))
+- return 0;
+ if (compare_ether_addr(sdata->u.wds.remote_addr, hdr->addr2))
+ return 0;
++
++ if (ieee80211_is_data(hdr->frame_control) ||
++ ieee80211_is_action(hdr->frame_control)) {
++ if (compare_ether_addr(sdata->vif.addr, hdr->addr1))
++ return 0;
++ } else if (!ieee80211_is_beacon(hdr->frame_control))
++ return 0;
++
+ break;
+ default:
+ /* should never get here */
+--- a/net/mac80211/sta_info.h
++++ b/net/mac80211/sta_info.h
+@@ -32,7 +32,6 @@
+ * frames.
+ * @WLAN_STA_ASSOC_AP: We're associated to that station, it is an AP.
+ * @WLAN_STA_WME: Station is a QoS-STA.
+- * @WLAN_STA_WDS: Station is one of our WDS peers.
+ * @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the
+ * IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next
+ * frame to this station is transmitted.
+@@ -61,7 +60,6 @@ enum ieee80211_sta_info_flags {
+ WLAN_STA_SHORT_PREAMBLE,
+ WLAN_STA_ASSOC_AP,
+ WLAN_STA_WME,
+- WLAN_STA_WDS,
+ WLAN_STA_CLEAR_PS_FILT,
+ WLAN_STA_MFP,
+ WLAN_STA_BLOCK_BA,
+--- a/net/mac80211/util.c
++++ b/net/mac80211/util.c
+@@ -836,23 +836,8 @@ int ieee80211_build_preq_ies(struct ieee
+ offset = noffset;
+ }
+
+- if (sband->ht_cap.ht_supported) {
+- u16 cap = sband->ht_cap.cap;
+- __le16 tmp;
+-
+- *pos++ = WLAN_EID_HT_CAPABILITY;
+- *pos++ = sizeof(struct ieee80211_ht_cap);
+- memset(pos, 0, sizeof(struct ieee80211_ht_cap));
+- tmp = cpu_to_le16(cap);
+- memcpy(pos, &tmp, sizeof(u16));
+- pos += sizeof(u16);
+- *pos++ = sband->ht_cap.ampdu_factor |
+- (sband->ht_cap.ampdu_density <<
+- IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT);
+- memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
+- pos += sizeof(sband->ht_cap.mcs);
+- pos += 2 + 4 + 1; /* ext info, BF cap, antsel */
+- }
++ if (sband->ht_cap.ht_supported)
++ pos = ieee80211_ie_build_ht_cap(pos, sband, sband->ht_cap.cap);
+
+ /*
+ * If adding more here, adjust code in main.c
+@@ -1443,3 +1428,100 @@ int ieee80211_add_ext_srates_ie(struct i
}
+ return 0;
+ }
++
++u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_supported_band *sband,
++ u16 cap)
++{
++ __le16 tmp;
++
++ *pos++ = WLAN_EID_HT_CAPABILITY;
++ *pos++ = sizeof(struct ieee80211_ht_cap);
++ memset(pos, 0, sizeof(struct ieee80211_ht_cap));
++
++ /* capability flags */
++ tmp = cpu_to_le16(cap);
++ memcpy(pos, &tmp, sizeof(u16));
++ pos += sizeof(u16);
++
++ /* AMPDU parameters */
++ *pos++ = sband->ht_cap.ampdu_factor |
++ (sband->ht_cap.ampdu_density <<
++ IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT);
++
++ /* MCS set */
++ memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
++ pos += sizeof(sband->ht_cap.mcs);
++
++ /* extended capabilities */
++ pos += sizeof(__le16);
++
++ /* BF capabilities */
++ pos += sizeof(__le32);
++
++ /* antenna selection */
++ pos += sizeof(u8);
+
-+ if (!n_supported)
-+ goto use_legacy;
++ return pos;
++}
+
-+ return;
++u8 *ieee80211_ie_build_ht_info(u8 *pos,
++ struct ieee80211_sta_ht_cap *ht_cap,
++ struct ieee80211_channel *channel,
++ enum nl80211_channel_type channel_type)
++{
++ struct ieee80211_ht_info *ht_info;
++ /* Build HT Information */
++ *pos++ = WLAN_EID_HT_INFORMATION;
++ *pos++ = sizeof(struct ieee80211_ht_info);
++ ht_info = (struct ieee80211_ht_info *)pos;
++ ht_info->control_chan =
++ ieee80211_frequency_to_channel(channel->center_freq);
++ switch (channel_type) {
++ case NL80211_CHAN_HT40MINUS:
++ ht_info->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
++ break;
++ case NL80211_CHAN_HT40PLUS:
++ ht_info->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
++ break;
++ case NL80211_CHAN_HT20:
++ default:
++ ht_info->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE;
++ break;
++ }
++ if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
++ ht_info->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
++ ht_info->operation_mode = 0x0000;
++ ht_info->stbc_param = 0x0000;
+
-+use_legacy:
-+ msp->is_ht = false;
-+ 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);
++ /* It seems that Basic MCS set and Supported MCS set
++ are identical for the first 10 bytes */
++ memset(&ht_info->basic_set, 0, 16);
++ memcpy(&ht_info->basic_set, &ht_cap->mcs, 10);
++
++ return pos + sizeof(struct ieee80211_ht_info);
++}
++
++enum nl80211_channel_type
++ieee80211_ht_info_to_channel_type(struct ieee80211_ht_info *ht_info)
++{
++ enum nl80211_channel_type channel_type;
++
++ if (!ht_info)
++ return NL80211_CHAN_NO_HT;
++
++ switch (ht_info->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
++ case IEEE80211_HT_PARAM_CHA_SEC_NONE:
++ channel_type = NL80211_CHAN_HT20;
++ break;
++ case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
++ channel_type = NL80211_CHAN_HT40PLUS;
++ break;
++ case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
++ channel_type = NL80211_CHAN_HT40MINUS;
++ break;
++ default:
++ channel_type = NL80211_CHAN_NO_HT;
++ }
++
++ return channel_type;
++}
+--- a/net/mac80211/work.c
++++ b/net/mac80211/work.c
+@@ -118,7 +118,6 @@ static void ieee80211_add_ht_ie(struct s
+ u8 *pos;
+ u32 flags = channel->flags;
+ u16 cap = sband->ht_cap.cap;
+- __le16 tmp;
+
+ if (!sband->ht_cap.ht_supported)
+ return;
+@@ -169,34 +168,8 @@ static void ieee80211_add_ht_ie(struct s
+ }
+
+ /* reserve and fill IE */
+-
+ pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
+- *pos++ = WLAN_EID_HT_CAPABILITY;
+- *pos++ = sizeof(struct ieee80211_ht_cap);
+- memset(pos, 0, sizeof(struct ieee80211_ht_cap));
+-
+- /* capability flags */
+- tmp = cpu_to_le16(cap);
+- memcpy(pos, &tmp, sizeof(u16));
+- pos += sizeof(u16);
+-
+- /* AMPDU parameters */
+- *pos++ = sband->ht_cap.ampdu_factor |
+- (sband->ht_cap.ampdu_density <<
+- IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT);
+-
+- /* MCS set */
+- memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
+- pos += sizeof(sband->ht_cap.mcs);
+-
+- /* extended capabilities */
+- pos += sizeof(__le16);
+-
+- /* BF capabilities */
+- pos += sizeof(__le32);
+-
+- /* antenna selection */
+- pos += sizeof(u8);
++ ieee80211_ie_build_ht_cap(pos, sband, cap);
+ }
+
+ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
+--- a/net/wireless/chan.c
++++ b/net/wireless/chan.c
+@@ -44,9 +44,9 @@ rdev_freq_to_chan(struct cfg80211_regist
+ return chan;
}
- static void
+-static bool can_beacon_sec_chan(struct wiphy *wiphy,
+- struct ieee80211_channel *chan,
+- enum nl80211_channel_type channel_type)
++bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
++ struct ieee80211_channel *chan,
++ enum nl80211_channel_type channel_type)
+ {
+ struct ieee80211_channel *sec_chan;
+ int diff;
+@@ -75,6 +75,7 @@ static bool can_beacon_sec_chan(struct w
+
+ return true;
+ }
++EXPORT_SYMBOL(cfg80211_can_beacon_sec_chan);
+
+ int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
+ struct wireless_dev *wdev, int freq,
+@@ -109,8 +110,8 @@ int cfg80211_set_freq(struct cfg80211_re
+ switch (channel_type) {
+ case NL80211_CHAN_HT40PLUS:
+ case NL80211_CHAN_HT40MINUS:
+- if (!can_beacon_sec_chan(&rdev->wiphy, chan,
+- channel_type)) {
++ if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, chan,
++ channel_type)) {
+ printk(KERN_DEBUG
+ "cfg80211: Secondary channel not "
+ "allowed to initiate communication\n");
+--- a/net/wireless/nl80211.c
++++ b/net/wireless/nl80211.c
+@@ -4574,13 +4574,34 @@ static int nl80211_join_ibss(struct sk_b
+ ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+ }
+
+- ibss.channel = ieee80211_get_channel(wiphy,
+- nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
++ if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
++ enum nl80211_channel_type channel_type;
++
++ channel_type = nla_get_u32(
++ info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
++ if (channel_type > NL80211_CHAN_HT40PLUS)
++ return -EINVAL;
++ ibss.channel_type = channel_type;
++ } else {
++ ibss.channel_type = NL80211_CHAN_NO_HT;
++ }
++
++ ibss.channel = rdev_freq_to_chan(rdev,
++ nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
++ ibss.channel_type);
+ if (!ibss.channel ||
++ ibss.channel->flags & IEEE80211_CHAN_RADAR ||
+ ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
+ ibss.channel->flags & IEEE80211_CHAN_DISABLED)
+ return -EINVAL;
+
++ /* Both channels should be able to initiate communication */
++ if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
++ ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
++ !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
++ ibss.channel_type))
++ return -EINVAL;
++
+ ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
+ ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
+
projects / openwrt.git / blobdiff