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-rw-r--r--net/mac80211/cfg.c92
-rw-r--r--net/mac80211/chan.c5
-rw-r--r--net/mac80211/debugfs.c55
-rw-r--r--net/mac80211/driver-ops.h27
-rw-r--r--net/mac80211/ibss.c608
-rw-r--r--net/mac80211/ieee80211_i.h30
-rw-r--r--net/mac80211/iface.c4
-rw-r--r--net/mac80211/key.c2
-rw-r--r--net/mac80211/mlme.c334
-rw-r--r--net/mac80211/rc80211_minstrel.c14
-rw-r--r--net/mac80211/rc80211_minstrel_ht.c23
-rw-r--r--net/mac80211/rc80211_pid_debugfs.c26
-rw-r--r--net/mac80211/rx.c39
-rw-r--r--net/mac80211/scan.c3
-rw-r--r--net/mac80211/spectmgmt.c162
-rw-r--r--net/mac80211/trace.h35
-rw-r--r--net/mac80211/tx.c39
-rw-r--r--net/mac80211/util.c162
-rw-r--r--net/mac80211/vht.c4
-rw-r--r--net/wireless/chan.c1
-rw-r--r--net/wireless/core.h9
-rw-r--r--net/wireless/debugfs.c24
-rw-r--r--net/wireless/genregdb.awk6
-rw-r--r--net/wireless/nl80211.c52
-rw-r--r--net/wireless/reg.c14
-rw-r--r--net/wireless/util.c9
26 files changed, 1237 insertions, 542 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 2e7855a1b10d..ac28af74a414 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2865,30 +2865,43 @@ void ieee80211_csa_finalize_work(struct work_struct *work)
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;
+ if (!local->use_chanctx) {
+ local->_oper_chandef = local->csa_chandef;
+ ieee80211_hw_config(local, 0);
+ }
- changed |= err;
- kfree(sdata->u.ap.next_beacon);
- sdata->u.ap.next_beacon = NULL;
+ ieee80211_bss_info_change_notify(sdata, changed);
+
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_AP:
+ 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;
+
+ ieee80211_bss_info_change_notify(sdata, err);
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ ieee80211_ibss_finish_csa(sdata);
+ break;
+ default:
+ WARN_ON(1);
+ return;
+ }
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);
}
@@ -2936,20 +2949,56 @@ static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
if (sdata->vif.csa_active)
return -EBUSY;
- /* only handle AP for now. */
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP:
+ sdata->csa_counter_offset_beacon =
+ params->counter_offset_beacon;
+ sdata->csa_counter_offset_presp = params->counter_offset_presp;
+ sdata->u.ap.next_beacon =
+ cfg80211_beacon_dup(&params->beacon_after);
+ if (!sdata->u.ap.next_beacon)
+ return -ENOMEM;
+
+ err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
+ if (err < 0) {
+ kfree(sdata->u.ap.next_beacon);
+ return err;
+ }
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ if (!sdata->vif.bss_conf.ibss_joined)
+ return -EINVAL;
+
+ if (params->chandef.width != sdata->u.ibss.chandef.width)
+ return -EINVAL;
+
+ switch (params->chandef.width) {
+ case NL80211_CHAN_WIDTH_40:
+ if (cfg80211_get_chandef_type(&params->chandef) !=
+ cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
+ return -EINVAL;
+ case NL80211_CHAN_WIDTH_5:
+ case NL80211_CHAN_WIDTH_10:
+ case NL80211_CHAN_WIDTH_20_NOHT:
+ case NL80211_CHAN_WIDTH_20:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* changes into another band are not supported */
+ if (sdata->u.ibss.chandef.chan->band !=
+ params->chandef.chan->band)
+ return -EINVAL;
+
+ err = ieee80211_ibss_csa_beacon(sdata, params);
+ if (err < 0)
+ return err;
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)
@@ -2957,10 +3006,6 @@ static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
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;
@@ -3014,7 +3059,8 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
need_offchan = true;
if (!ieee80211_is_action(mgmt->frame_control) ||
mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
- mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED)
+ mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
+ mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
break;
rcu_read_lock();
sta = sta_info_get(sdata, mgmt->da);
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 3a4764b2869e..03ba6b5c5373 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -453,11 +453,6 @@ int ieee80211_vif_change_channel(struct ieee80211_sub_if_data *sdata,
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);
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index b0e32d628114..5c090e41d9bb 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -103,54 +103,57 @@ static ssize_t hwflags_read(struct file *file, char __user *user_buf,
if (!buf)
return 0;
- sf += snprintf(buf, mxln - sf, "0x%x\n", local->hw.flags);
+ sf += scnprintf(buf, mxln - sf, "0x%x\n", local->hw.flags);
if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
- sf += snprintf(buf + sf, mxln - sf, "HAS_RATE_CONTROL\n");
+ sf += scnprintf(buf + sf, mxln - sf, "HAS_RATE_CONTROL\n");
if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
- sf += snprintf(buf + sf, mxln - sf, "RX_INCLUDES_FCS\n");
+ sf += scnprintf(buf + sf, mxln - sf, "RX_INCLUDES_FCS\n");
if (local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING)
- sf += snprintf(buf + sf, mxln - sf,
- "HOST_BCAST_PS_BUFFERING\n");
+ sf += scnprintf(buf + sf, mxln - sf,
+ "HOST_BCAST_PS_BUFFERING\n");
if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)
- sf += snprintf(buf + sf, mxln - sf,
- "2GHZ_SHORT_SLOT_INCAPABLE\n");
+ sf += scnprintf(buf + sf, mxln - sf,
+ "2GHZ_SHORT_SLOT_INCAPABLE\n");
if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)
- sf += snprintf(buf + sf, mxln - sf,
- "2GHZ_SHORT_PREAMBLE_INCAPABLE\n");
+ sf += scnprintf(buf + sf, mxln - sf,
+ "2GHZ_SHORT_PREAMBLE_INCAPABLE\n");
if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
- sf += snprintf(buf + sf, mxln - sf, "SIGNAL_UNSPEC\n");
+ sf += scnprintf(buf + sf, mxln - sf, "SIGNAL_UNSPEC\n");
if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
- sf += snprintf(buf + sf, mxln - sf, "SIGNAL_DBM\n");
+ sf += scnprintf(buf + sf, mxln - sf, "SIGNAL_DBM\n");
if (local->hw.flags & IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC)
- sf += snprintf(buf + sf, mxln - sf, "NEED_DTIM_BEFORE_ASSOC\n");
+ sf += scnprintf(buf + sf, mxln - sf,
+ "NEED_DTIM_BEFORE_ASSOC\n");
if (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT)
- sf += snprintf(buf + sf, mxln - sf, "SPECTRUM_MGMT\n");
+ sf += scnprintf(buf + sf, mxln - sf, "SPECTRUM_MGMT\n");
if (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)
- sf += snprintf(buf + sf, mxln - sf, "AMPDU_AGGREGATION\n");
+ sf += scnprintf(buf + sf, mxln - sf, "AMPDU_AGGREGATION\n");
if (local->hw.flags & IEEE80211_HW_SUPPORTS_PS)
- sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PS\n");
+ sf += scnprintf(buf + sf, mxln - sf, "SUPPORTS_PS\n");
if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
- sf += snprintf(buf + sf, mxln - sf, "PS_NULLFUNC_STACK\n");
+ sf += scnprintf(buf + sf, mxln - sf, "PS_NULLFUNC_STACK\n");
if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
- sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_PS\n");
+ sf += scnprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_PS\n");
if (local->hw.flags & IEEE80211_HW_MFP_CAPABLE)
- sf += snprintf(buf + sf, mxln - sf, "MFP_CAPABLE\n");
+ sf += scnprintf(buf + sf, mxln - sf, "MFP_CAPABLE\n");
if (local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS)
- sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_STATIC_SMPS\n");
+ sf += scnprintf(buf + sf, mxln - sf, "SUPPORTS_STATIC_SMPS\n");
if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS)
- sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_SMPS\n");
+ sf += scnprintf(buf + sf, mxln - sf,
+ "SUPPORTS_DYNAMIC_SMPS\n");
if (local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)
- sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_UAPSD\n");
+ sf += scnprintf(buf + sf, mxln - sf, "SUPPORTS_UAPSD\n");
if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
- sf += snprintf(buf + sf, mxln - sf, "REPORTS_TX_ACK_STATUS\n");
+ sf += scnprintf(buf + sf, mxln - sf,
+ "REPORTS_TX_ACK_STATUS\n");
if (local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
- sf += snprintf(buf + sf, mxln - sf, "CONNECTION_MONITOR\n");
+ sf += scnprintf(buf + sf, mxln - sf, "CONNECTION_MONITOR\n");
if (local->hw.flags & IEEE80211_HW_SUPPORTS_PER_STA_GTK)
- sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PER_STA_GTK\n");
+ sf += scnprintf(buf + sf, mxln - sf, "SUPPORTS_PER_STA_GTK\n");
if (local->hw.flags & IEEE80211_HW_AP_LINK_PS)
- sf += snprintf(buf + sf, mxln - sf, "AP_LINK_PS\n");
+ sf += scnprintf(buf + sf, mxln - sf, "AP_LINK_PS\n");
if (local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW)
- sf += snprintf(buf + sf, mxln - sf, "TX_AMPDU_SETUP_IN_HW\n");
+ sf += scnprintf(buf + sf, mxln - sf, "TX_AMPDU_SETUP_IN_HW\n");
rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
kfree(buf);
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index b3ea11f3d526..5d03c47c0a4c 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1085,4 +1085,31 @@ drv_channel_switch_beacon(struct ieee80211_sub_if_data *sdata,
}
}
+static inline int drv_join_ibss(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata)
+{
+ int ret = 0;
+
+ might_sleep();
+ check_sdata_in_driver(sdata);
+
+ trace_drv_join_ibss(local, sdata, &sdata->vif.bss_conf);
+ if (local->ops->join_ibss)
+ ret = local->ops->join_ibss(&local->hw, &sdata->vif);
+ trace_drv_return_int(local, ret);
+ return ret;
+}
+
+static inline void drv_leave_ibss(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata)
+{
+ might_sleep();
+ check_sdata_in_driver(sdata);
+
+ trace_drv_leave_ibss(local, sdata);
+ if (local->ops->leave_ibss)
+ local->ops->leave_ibss(&local->hw, &sdata->vif);
+ trace_drv_return_void(local);
+}
+
#endif /* __MAC80211_DRIVER_OPS */
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index a12afe77bb26..21a0b8835cb3 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -39,7 +39,8 @@ ieee80211_ibss_build_presp(struct ieee80211_sub_if_data *sdata,
const int beacon_int, const u32 basic_rates,
const u16 capability, u64 tsf,
struct cfg80211_chan_def *chandef,
- bool *have_higher_than_11mbit)
+ bool *have_higher_than_11mbit,
+ struct cfg80211_csa_settings *csa_settings)
{
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
@@ -59,6 +60,7 @@ ieee80211_ibss_build_presp(struct ieee80211_sub_if_data *sdata,
2 + 8 /* max Supported Rates */ +
3 /* max DS params */ +
4 /* IBSS params */ +
+ 5 /* Channel Switch Announcement */ +
2 + (IEEE80211_MAX_SUPP_RATES - 8) +
2 + sizeof(struct ieee80211_ht_cap) +
2 + sizeof(struct ieee80211_ht_operation) +
@@ -135,6 +137,16 @@ ieee80211_ibss_build_presp(struct ieee80211_sub_if_data *sdata,
*pos++ = 0;
*pos++ = 0;
+ if (csa_settings) {
+ *pos++ = WLAN_EID_CHANNEL_SWITCH;
+ *pos++ = 3;
+ *pos++ = csa_settings->block_tx ? 1 : 0;
+ *pos++ = ieee80211_frequency_to_channel(
+ csa_settings->chandef.chan->center_freq);
+ sdata->csa_counter_offset_beacon = (pos - presp->head);
+ *pos++ = csa_settings->count;
+ }
+
/* put the remaining rates in WLAN_EID_EXT_SUPP_RATES */
if (rates_n > 8) {
*pos++ = WLAN_EID_EXT_SUPP_RATES;
@@ -217,6 +229,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
struct beacon_data *presp;
enum nl80211_bss_scan_width scan_width;
bool have_higher_than_11mbit;
+ int err;
sdata_assert_lock(sdata);
@@ -235,6 +248,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
ieee80211_bss_info_change_notify(sdata,
BSS_CHANGED_IBSS |
BSS_CHANGED_BEACON_ENABLED);
+ drv_leave_ibss(local, sdata);
}
presp = rcu_dereference_protected(ifibss->presp,
@@ -276,7 +290,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
presp = ieee80211_ibss_build_presp(sdata, beacon_int, basic_rates,
capability, tsf, &chandef,
- &have_higher_than_11mbit);
+ &have_higher_than_11mbit, NULL);
if (!presp)
return;
@@ -317,11 +331,26 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
else
sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
+ ieee80211_set_wmm_default(sdata, true);
+
sdata->vif.bss_conf.ibss_joined = true;
sdata->vif.bss_conf.ibss_creator = creator;
- ieee80211_bss_info_change_notify(sdata, bss_change);
- ieee80211_set_wmm_default(sdata, true);
+ err = drv_join_ibss(local, sdata);
+ if (err) {
+ sdata->vif.bss_conf.ibss_joined = false;
+ sdata->vif.bss_conf.ibss_creator = false;
+ sdata->vif.bss_conf.enable_beacon = false;
+ sdata->vif.bss_conf.ssid_len = 0;
+ RCU_INIT_POINTER(ifibss->presp, NULL);
+ kfree_rcu(presp, rcu_head);
+ ieee80211_vif_release_channel(sdata);
+ sdata_info(sdata, "Failed to join IBSS, driver failure: %d\n",
+ err);
+ return;
+ }
+
+ ieee80211_bss_info_change_notify(sdata, bss_change);
ifibss->state = IEEE80211_IBSS_MLME_JOINED;
mod_timer(&ifibss->timer,
@@ -416,6 +445,169 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
tsf, false);
}
+static int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_csa_settings *csa_settings)
+{
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+ struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+ struct ieee80211_local *local = sdata->local;
+ int freq;
+ int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.chan_switch) +
+ sizeof(mgmt->u.action.u.chan_switch);
+ u8 *pos;
+
+ skb = dev_alloc_skb(local->tx_headroom + hdr_len +
+ 5 + /* channel switch announcement element */
+ 3); /* secondary channel offset element */
+ if (!skb)
+ return -1;
+
+ skb_reserve(skb, local->tx_headroom);
+ mgmt = (struct ieee80211_mgmt *)skb_put(skb, hdr_len);
+ memset(mgmt, 0, hdr_len);
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_ACTION);
+
+ eth_broadcast_addr(mgmt->da);
+ memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
+ memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
+ mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT;
+ mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH;
+ pos = skb_put(skb, 5);
+ *pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */
+ *pos++ = 3; /* IE length */
+ *pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */
+ freq = csa_settings->chandef.chan->center_freq;
+ *pos++ = ieee80211_frequency_to_channel(freq); /* channel */
+ *pos++ = csa_settings->count; /* count */
+
+ if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) {
+ enum nl80211_channel_type ch_type;
+
+ skb_put(skb, 3);
+ *pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */
+ *pos++ = 1; /* IE length */
+ ch_type = cfg80211_get_chandef_type(&csa_settings->chandef);
+ if (ch_type == NL80211_CHAN_HT40PLUS)
+ *pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+ else
+ *pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+ }
+
+ ieee80211_tx_skb(sdata, skb);
+ return 0;
+}
+
+int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_csa_settings *csa_settings)
+{
+ struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+ struct beacon_data *presp, *old_presp;
+ struct cfg80211_bss *cbss;
+ const struct cfg80211_bss_ies *ies;
+ u16 capability;
+ u64 tsf;
+ int ret = 0;
+
+ sdata_assert_lock(sdata);
+
+ capability = WLAN_CAPABILITY_IBSS;
+
+ if (ifibss->privacy)
+ capability |= WLAN_CAPABILITY_PRIVACY;
+
+ cbss = cfg80211_get_bss(sdata->local->hw.wiphy, ifibss->chandef.chan,
+ ifibss->bssid, ifibss->ssid,
+ ifibss->ssid_len, WLAN_CAPABILITY_IBSS |
+ WLAN_CAPABILITY_PRIVACY,
+ capability);
+
+ if (WARN_ON(!cbss)) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ rcu_read_lock();
+ ies = rcu_dereference(cbss->ies);
+ tsf = ies->tsf;
+ rcu_read_unlock();
+ cfg80211_put_bss(sdata->local->hw.wiphy, cbss);
+
+ old_presp = rcu_dereference_protected(ifibss->presp,
+ lockdep_is_held(&sdata->wdev.mtx));
+
+ presp = ieee80211_ibss_build_presp(sdata,
+ sdata->vif.bss_conf.beacon_int,
+ sdata->vif.bss_conf.basic_rates,
+ capability, tsf, &ifibss->chandef,
+ NULL, csa_settings);
+ if (!presp) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ rcu_assign_pointer(ifibss->presp, presp);
+ if (old_presp)
+ kfree_rcu(old_presp, rcu_head);
+
+ /* it might not send the beacon for a while. send an action frame
+ * immediately to announce the channel switch.
+ */
+ if (csa_settings)
+ ieee80211_send_action_csa(sdata, csa_settings);
+
+ ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
+ out:
+ return ret;
+}
+
+int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+ struct cfg80211_bss *cbss;
+ int err;
+ u16 capability;
+
+ sdata_lock(sdata);
+ /* update cfg80211 bss information with the new channel */
+ if (!is_zero_ether_addr(ifibss->bssid)) {
+ capability = WLAN_CAPABILITY_IBSS;
+
+ if (ifibss->privacy)
+ capability |= WLAN_CAPABILITY_PRIVACY;
+
+ cbss = cfg80211_get_bss(sdata->local->hw.wiphy,
+ ifibss->chandef.chan,
+ ifibss->bssid, ifibss->ssid,
+ ifibss->ssid_len, WLAN_CAPABILITY_IBSS |
+ WLAN_CAPABILITY_PRIVACY,
+ capability);
+ /* XXX: should not really modify cfg80211 data */
+ if (cbss) {
+ cbss->channel = sdata->local->csa_chandef.chan;
+ cfg80211_put_bss(sdata->local->hw.wiphy, cbss);
+ }
+ }
+
+ ifibss->chandef = sdata->local->csa_chandef;
+
+ /* generate the beacon */
+ err = ieee80211_ibss_csa_beacon(sdata, NULL);
+ sdata_unlock(sdata);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+
+ cancel_work_sync(&ifibss->csa_connection_drop_work);
+}
+
static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta)
__acquires(RCU)
{
@@ -499,6 +691,295 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, const u8 *bssid,
return ieee80211_ibss_finish_sta(sta);
}
+static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_local *local = sdata->local;
+ int active = 0;
+ struct sta_info *sta;
+
+ sdata_assert_lock(sdata);
+
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(sta, &local->sta_list, list) {
+ if (sta->sdata == sdata &&
+ time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL,
+ jiffies)) {
+ active++;
+ break;
+ }
+ }
+
+ rcu_read_unlock();
+
+ return active;
+}
+
+static void ieee80211_ibss_disconnect(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+ struct ieee80211_local *local = sdata->local;
+ struct cfg80211_bss *cbss;
+ struct beacon_data *presp;
+ struct sta_info *sta;
+ int active_ibss;
+ u16 capability;
+
+ active_ibss = ieee80211_sta_active_ibss(sdata);
+
+ if (!active_ibss && !is_zero_ether_addr(ifibss->bssid)) {
+ capability = WLAN_CAPABILITY_IBSS;
+
+ if (ifibss->privacy)
+ capability |= WLAN_CAPABILITY_PRIVACY;
+
+ cbss = cfg80211_get_bss(local->hw.wiphy, ifibss->chandef.chan,
+ ifibss->bssid, ifibss->ssid,
+ ifibss->ssid_len, WLAN_CAPABILITY_IBSS |
+ WLAN_CAPABILITY_PRIVACY,
+ capability);
+
+ if (cbss) {
+ cfg80211_unlink_bss(local->hw.wiphy, cbss);
+ cfg80211_put_bss(sdata->local->hw.wiphy, cbss);
+ }
+ }
+
+ ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
+
+ sta_info_flush(sdata);
+
+ spin_lock_bh(&ifibss->incomplete_lock);
+ while (!list_empty(&ifibss->incomplete_stations)) {
+ sta = list_first_entry(&ifibss->incomplete_stations,
+ struct sta_info, list);
+ list_del(&sta->list);
+ spin_unlock_bh(&ifibss->incomplete_lock);
+
+ sta_info_free(local, sta);
+ spin_lock_bh(&ifibss->incomplete_lock);
+ }
+ spin_unlock_bh(&ifibss->incomplete_lock);
+
+ netif_carrier_off(sdata->dev);
+
+ sdata->vif.bss_conf.ibss_joined = false;
+ sdata->vif.bss_conf.ibss_creator = false;
+ sdata->vif.bss_conf.enable_beacon = false;
+ sdata->vif.bss_conf.ssid_len = 0;
+
+ /* remove beacon */
+ presp = rcu_dereference_protected(ifibss->presp,
+ lockdep_is_held(&sdata->wdev.mtx));
+ RCU_INIT_POINTER(sdata->u.ibss.presp, NULL);
+ if (presp)
+ kfree_rcu(presp, rcu_head);
+
+ clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
+ ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
+ BSS_CHANGED_IBSS);
+ drv_leave_ibss(local, sdata);
+ ieee80211_vif_release_channel(sdata);
+}
+
+static void ieee80211_csa_connection_drop_work(struct work_struct *work)
+{
+ struct ieee80211_sub_if_data *sdata =
+ container_of(work, struct ieee80211_sub_if_data,
+ u.ibss.csa_connection_drop_work);
+
+ ieee80211_ibss_disconnect(sdata);
+ synchronize_rcu();
+ skb_queue_purge(&sdata->skb_queue);
+
+ /* trigger a scan to find another IBSS network to join */
+ ieee80211_queue_work(&sdata->local->hw, &sdata->work);
+}
+
+static bool
+ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
+ struct ieee802_11_elems *elems,
+ bool beacon)
+{
+ struct cfg80211_csa_settings params;
+ struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+ struct ieee80211_chanctx_conf *chanctx_conf;
+ struct ieee80211_chanctx *chanctx;
+ enum nl80211_channel_type ch_type;
+ int err, num_chanctx;
+ u32 sta_flags;
+ u8 mode;
+
+ if (sdata->vif.csa_active)
+ return true;
+
+ if (!sdata->vif.bss_conf.ibss_joined)
+ return false;
+
+ sta_flags = IEEE80211_STA_DISABLE_VHT;
+ switch (ifibss->chandef.width) {
+ case NL80211_CHAN_WIDTH_5:
+ case NL80211_CHAN_WIDTH_10:
+ case NL80211_CHAN_WIDTH_20_NOHT:
+ sta_flags |= IEEE80211_STA_DISABLE_HT;
+ /* fall through */
+ case NL80211_CHAN_WIDTH_20:
+ sta_flags |= IEEE80211_STA_DISABLE_40MHZ;
+ break;
+ default:
+ break;
+ }
+
+ memset(&params, 0, sizeof(params));
+ err = ieee80211_parse_ch_switch_ie(sdata, elems, beacon,
+ ifibss->chandef.chan->band,
+ sta_flags, ifibss->bssid,
+ &params.count, &mode,
+ &params.chandef);
+
+ /* can't switch to destination channel, fail */
+ if (err < 0)
+ goto disconnect;
+
+ /* did not contain a CSA */
+ if (err)
+ return false;
+
+ if (ifibss->chandef.chan->band != params.chandef.chan->band)
+ goto disconnect;
+
+ switch (ifibss->chandef.width) {
+ case NL80211_CHAN_WIDTH_20_NOHT:
+ case NL80211_CHAN_WIDTH_20:
+ case NL80211_CHAN_WIDTH_40:
+ /* keep our current HT mode (HT20/HT40+/HT40-), even if
+ * another mode has been announced. The mode is not adopted
+ * within the beacon while doing CSA and we should therefore
+ * keep the mode which we announce.
+ */
+ ch_type = cfg80211_get_chandef_type(&ifibss->chandef);
+ cfg80211_chandef_create(&params.chandef, params.chandef.chan,
+ ch_type);
+ break;
+ case NL80211_CHAN_WIDTH_5:
+ case NL80211_CHAN_WIDTH_10:
+ if (params.chandef.width != ifibss->chandef.width) {
+ sdata_info(sdata,
+ "IBSS %pM received channel switch from incompatible channel width (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n",
+ ifibss->bssid,
+ params.chandef.chan->center_freq,
+ params.chandef.width,
+ params.chandef.center_freq1,
+ params.chandef.center_freq2);
+ goto disconnect;
+ }
+ break;
+ default:
+ /* should not happen, sta_flags should prevent VHT modes. */
+ WARN_ON(1);
+ goto disconnect;
+ }
+
+ if (!cfg80211_chandef_usable(sdata->local->hw.wiphy, &params.chandef,
+ IEEE80211_CHAN_DISABLED)) {
+ sdata_info(sdata,
+ "IBSS %pM switches to unsupported channel (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n",
+ ifibss->bssid,
+ params.chandef.chan->center_freq,
+ params.chandef.width,
+ params.chandef.center_freq1,
+ params.chandef.center_freq2);
+ goto disconnect;
+ }
+
+ err = cfg80211_chandef_dfs_required(sdata->local->hw.wiphy,
+ &params.chandef);
+ if (err < 0)
+ goto disconnect;
+ if (err) {
+ params.radar_required = true;
+
+ /* TODO: IBSS-DFS not (yet) supported, disconnect. */
+ goto disconnect;
+ }
+
+ rcu_read_lock();
+ chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+ if (!chanctx_conf) {
+ rcu_read_unlock();
+ goto disconnect;
+ }
+
+ /* don't handle for multi-VIF cases */
+ chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
+ if (chanctx->refcount > 1) {
+ rcu_read_unlock();
+ goto disconnect;
+ }
+ num_chanctx = 0;
+ list_for_each_entry_rcu(chanctx, &sdata->local->chanctx_list, list)
+ num_chanctx++;
+
+ if (num_chanctx > 1) {
+ rcu_read_unlock();
+ goto disconnect;
+ }
+ rcu_read_unlock();
+
+ /* all checks done, now perform the channel switch. */
+ ibss_dbg(sdata,
+ "received channel switch announcement to go to channel %d MHz\n",
+ params.chandef.chan->center_freq);
+
+ params.block_tx = !!mode;
+
+ ieee80211_ibss_csa_beacon(sdata, &params);
+ sdata->csa_radar_required = params.radar_required;
+
+ if (params.block_tx)
+ ieee80211_stop_queues_by_reason(&sdata->local->hw,
+ IEEE80211_MAX_QUEUE_MAP,
+ IEEE80211_QUEUE_STOP_REASON_CSA);
+
+ sdata->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 true;
+disconnect:
+ ibss_dbg(sdata, "Can't handle channel switch, disconnect\n");
+ ieee80211_queue_work(&sdata->local->hw,
+ &ifibss->csa_connection_drop_work);
+
+ return true;
+}
+
+static void
+ieee80211_rx_mgmt_spectrum_mgmt(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_mgmt *mgmt, size_t len,
+ struct ieee80211_rx_status *rx_status,
+ struct ieee802_11_elems *elems)
+{
+ int required_len;
+
+ if (len < IEEE80211_MIN_ACTION_SIZE + 1)
+ return;
+
+ /* CSA is the only action we handle for now */
+ if (mgmt->u.action.u.measurement.action_code !=
+ WLAN_ACTION_SPCT_CHL_SWITCH)
+ return;
+
+ required_len = IEEE80211_MIN_ACTION_SIZE +
+ sizeof(mgmt->u.action.u.chan_switch);
+ if (len < required_len)
+ return;
+
+ ieee80211_ibss_process_chanswitch(sdata, elems, false);
+}
+
static void ieee80211_rx_mgmt_deauth_ibss(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
size_t len)
@@ -661,10 +1142,6 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
/* check if we need to merge IBSS */
- /* we use a fixed BSSID */
- if (sdata->u.ibss.fixed_bssid)
- goto put_bss;
-
/* not an IBSS */
if (!(cbss->capability & WLAN_CAPABILITY_IBSS))
goto put_bss;
@@ -680,10 +1157,18 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
sdata->u.ibss.ssid_len))
goto put_bss;
+ /* process channel switch */
+ if (ieee80211_ibss_process_chanswitch(sdata, elems, true))
+ goto put_bss;
+
/* same BSSID */
if (ether_addr_equal(cbss->bssid, sdata->u.ibss.bssid))
goto put_bss;
+ /* we use a fixed BSSID */
+ if (sdata->u.ibss.fixed_bssid)
+ goto put_bss;
+
if (ieee80211_have_rx_timestamp(rx_status)) {
/* time when timestamp field was received */
rx_timestamp =
@@ -775,30 +1260,6 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
ieee80211_queue_work(&local->hw, &sdata->work);
}
-static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_local *local = sdata->local;
- int active = 0;
- struct sta_info *sta;
-
- sdata_assert_lock(sdata);
-
- rcu_read_lock();
-
- list_for_each_entry_rcu(sta, &local->sta_list, list) {
- if (sta->sdata == sdata &&
- time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL,
- jiffies)) {
- active++;
- break;
- }
- }
-
- rcu_read_unlock();
-
- return active;
-}
-
static void ieee80211_ibss_sta_expire(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_local *local = sdata->local;
@@ -1076,6 +1537,8 @@ void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
struct ieee80211_rx_status *rx_status;
struct ieee80211_mgmt *mgmt;
u16 fc;
+ struct ieee802_11_elems elems;
+ int ies_len;
rx_status = IEEE80211_SKB_RXCB(skb);
mgmt = (struct ieee80211_mgmt *) skb->data;
@@ -1101,6 +1564,27 @@ void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
case IEEE80211_STYPE_DEAUTH:
ieee80211_rx_mgmt_deauth_ibss(sdata, mgmt, skb->len);
break;
+ case IEEE80211_STYPE_ACTION:
+ switch (mgmt->u.action.category) {
+ case WLAN_CATEGORY_SPECTRUM_MGMT:
+ ies_len = skb->len -
+ offsetof(struct ieee80211_mgmt,
+ u.action.u.chan_switch.variable);
+
+ if (ies_len < 0)
+ break;
+
+ ieee802_11_parse_elems(
+ mgmt->u.action.u.chan_switch.variable,
+ ies_len, true, &elems);
+
+ if (elems.parse_error)
+ break;
+
+ ieee80211_rx_mgmt_spectrum_mgmt(sdata, mgmt, skb->len,
+ rx_status, &elems);
+ break;
+ }
}
mgmt_out:
@@ -1167,6 +1651,8 @@ void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata)
(unsigned long) sdata);
INIT_LIST_HEAD(&ifibss->incomplete_stations);
spin_lock_init(&ifibss->incomplete_lock);
+ INIT_WORK(&ifibss->csa_connection_drop_work,
+ ieee80211_csa_connection_drop_work);
}
/* scan finished notification */
@@ -1265,73 +1751,19 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
- struct ieee80211_local *local = sdata->local;
- struct cfg80211_bss *cbss;
- u16 capability;
- int active_ibss;
- struct sta_info *sta;
- struct beacon_data *presp;
-
- active_ibss = ieee80211_sta_active_ibss(sdata);
-
- if (!active_ibss && !is_zero_ether_addr(ifibss->bssid)) {
- capability = WLAN_CAPABILITY_IBSS;
-
- if (ifibss->privacy)
- capability |= WLAN_CAPABILITY_PRIVACY;
-
- cbss = cfg80211_get_bss(local->hw.wiphy, ifibss->chandef.chan,
- ifibss->bssid, ifibss->ssid,
- ifibss->ssid_len, WLAN_CAPABILITY_IBSS |
- WLAN_CAPABILITY_PRIVACY,
- capability);
- if (cbss) {
- cfg80211_unlink_bss(local->hw.wiphy, cbss);
- cfg80211_put_bss(local->hw.wiphy, cbss);
- }
- }
-
- ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
- memset(ifibss->bssid, 0, ETH_ALEN);
+ ieee80211_ibss_disconnect(sdata);
ifibss->ssid_len = 0;
-
- sta_info_flush(sdata);
-
- spin_lock_bh(&ifibss->incomplete_lock);
- while (!list_empty(&ifibss->incomplete_stations)) {
- sta = list_first_entry(&ifibss->incomplete_stations,
- struct sta_info, list);
- list_del(&sta->list);
- spin_unlock_bh(&ifibss->incomplete_lock);
-
- sta_info_free(local, sta);
- spin_lock_bh(&ifibss->incomplete_lock);
- }
- spin_unlock_bh(&ifibss->incomplete_lock);
-
- netif_carrier_off(sdata->dev);
+ memset(ifibss->bssid, 0, ETH_ALEN);
/* remove beacon */
kfree(sdata->u.ibss.ie);
- 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;
- sdata->vif.bss_conf.ssid_len = 0;
- clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
- ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
- BSS_CHANGED_IBSS);
- ieee80211_vif_release_channel(sdata);
synchronize_rcu();
- kfree(presp);
skb_queue_purge(&sdata->skb_queue);
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index b6186517ec56..3a87c8976a32 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -322,7 +322,6 @@ struct ieee80211_roc_work {
/* flags used in struct ieee80211_if_managed.flags */
enum ieee80211_sta_flags {
- IEEE80211_STA_BEACON_POLL = BIT(0),
IEEE80211_STA_CONNECTION_POLL = BIT(1),
IEEE80211_STA_CONTROL_PORT = BIT(2),
IEEE80211_STA_DISABLE_HT = BIT(4),
@@ -487,6 +486,7 @@ struct ieee80211_if_managed {
struct ieee80211_if_ibss {
struct timer_list timer;
+ struct work_struct csa_connection_drop_work;
unsigned long last_scan_completed;
@@ -1330,6 +1330,10 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb);
+int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_csa_settings *csa_settings);
+int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
+void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
/* mesh code */
void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
@@ -1481,6 +1485,29 @@ void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt,
size_t len);
+/**
+ * ieee80211_parse_ch_switch_ie - parses channel switch IEs
+ * @sdata: the sdata of the interface which has received the frame
+ * @elems: parsed 802.11 elements received with the frame
+ * @beacon: indicates if the frame was a beacon or probe response
+ * @current_band: indicates the current band
+ * @sta_flags: contains information about own capabilities and restrictions
+ * to decide which channel switch announcements can be accepted. Only the
+ * following subset of &enum ieee80211_sta_flags are evaluated:
+ * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
+ * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
+ * %IEEE80211_STA_DISABLE_160MHZ.
+ * @count: to be filled with the counter until the switch (on success only)
+ * @bssid: the currently connected bssid (for reporting)
+ * @mode: to be filled with CSA mode (on success only)
+ * @new_chandef: to be filled with destination chandef (on success only)
+ * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
+ */
+int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
+ struct ieee802_11_elems *elems, bool beacon,
+ enum ieee80211_band current_band,
+ u32 sta_flags, u8 *bssid, u8 *count, u8 *mode,
+ struct cfg80211_chan_def *new_chandef);
/* Suspend/resume and hw reconfiguration */
int ieee80211_reconfig(struct ieee80211_local *local);
@@ -1654,6 +1681,7 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
const struct ieee80211_ht_operation *ht_oper,
struct cfg80211_chan_def *chandef);
+u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
int __must_check
ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index fcecd633514e..e48f103b9ade 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -766,6 +766,10 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
if (sdata->vif.type == NL80211_IFTYPE_STATION)
ieee80211_mgd_stop(sdata);
+ if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+ ieee80211_ibss_stop(sdata);
+
+
/*
* Remove all stations associated with this interface.
*
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 620677e897bd..3e51dd7d98b3 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -879,7 +879,7 @@ ieee80211_gtk_rekey_add(struct ieee80211_vif *vif,
keyconf->keylen, keyconf->key,
0, NULL);
if (IS_ERR(key))
- return ERR_PTR(PTR_ERR(key));
+ return ERR_CAST(key);
if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 86e4ad56b573..91cc8281e266 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -145,66 +145,6 @@ static int ecw2cw(int ecw)
return (1 << ecw) - 1;
}
-static u32 chandef_downgrade(struct cfg80211_chan_def *c)
-{
- u32 ret;
- int tmp;
-
- switch (c->width) {
- case NL80211_CHAN_WIDTH_20:
- c->width = NL80211_CHAN_WIDTH_20_NOHT;
- ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
- break;
- case NL80211_CHAN_WIDTH_40:
- c->width = NL80211_CHAN_WIDTH_20;
- c->center_freq1 = c->chan->center_freq;
- ret = IEEE80211_STA_DISABLE_40MHZ |
- IEEE80211_STA_DISABLE_VHT;
- break;
- case NL80211_CHAN_WIDTH_80:
- tmp = (30 + c->chan->center_freq - c->center_freq1)/20;
- /* n_P40 */
- tmp /= 2;
- /* freq_P40 */
- c->center_freq1 = c->center_freq1 - 20 + 40 * tmp;
- c->width = NL80211_CHAN_WIDTH_40;
- ret = IEEE80211_STA_DISABLE_VHT;
- break;
- case NL80211_CHAN_WIDTH_80P80:
- c->center_freq2 = 0;
- c->width = NL80211_CHAN_WIDTH_80;
- ret = IEEE80211_STA_DISABLE_80P80MHZ |
- IEEE80211_STA_DISABLE_160MHZ;
- break;
- case NL80211_CHAN_WIDTH_160:
- /* n_P20 */
- tmp = (70 + c->chan->center_freq - c->center_freq1)/20;
- /* n_P80 */
- tmp /= 4;
- c->center_freq1 = c->center_freq1 - 40 + 80 * tmp;
- c->width = NL80211_CHAN_WIDTH_80;
- ret = IEEE80211_STA_DISABLE_80P80MHZ |
- IEEE80211_STA_DISABLE_160MHZ;
- break;
- default:
- case NL80211_CHAN_WIDTH_20_NOHT:
- WARN_ON_ONCE(1);
- c->width = NL80211_CHAN_WIDTH_20_NOHT;
- ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
- break;
- case NL80211_CHAN_WIDTH_5:
- case NL80211_CHAN_WIDTH_10:
- WARN_ON_ONCE(1);
- /* keep c->width */
- ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
- break;
- }
-
- WARN_ON_ONCE(!cfg80211_chandef_valid(c));
-
- return ret;
-}
-
static u32
ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
struct ieee80211_supported_band *sband,
@@ -352,7 +292,7 @@ out:
break;
}
- ret |= chandef_downgrade(chandef);
+ ret |= ieee80211_chandef_downgrade(chandef);
}
if (chandef->width != vht_chandef.width && !tracking)
@@ -406,13 +346,13 @@ static int ieee80211_config_bw(struct ieee80211_sub_if_data *sdata,
*/
if (ifmgd->flags & IEEE80211_STA_DISABLE_80P80MHZ &&
chandef.width == NL80211_CHAN_WIDTH_80P80)
- flags |= chandef_downgrade(&chandef);
+ flags |= ieee80211_chandef_downgrade(&chandef);
if (ifmgd->flags & IEEE80211_STA_DISABLE_160MHZ &&
chandef.width == NL80211_CHAN_WIDTH_160)
- flags |= chandef_downgrade(&chandef);
+ flags |= ieee80211_chandef_downgrade(&chandef);
if (ifmgd->flags & IEEE80211_STA_DISABLE_40MHZ &&
chandef.width > NL80211_CHAN_WIDTH_20)
- flags |= chandef_downgrade(&chandef);
+ flags |= ieee80211_chandef_downgrade(&chandef);
if (cfg80211_chandef_identical(&chandef, &sdata->vif.bss_conf.chandef))
return 0;
@@ -893,8 +833,7 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local,
if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
- if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
- IEEE80211_STA_CONNECTION_POLL))
+ if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL)
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_USE_MINRATE;
ieee80211_tx_skb(sdata, skb);
@@ -937,6 +876,8 @@ static void ieee80211_chswitch_work(struct work_struct *work)
container_of(work, struct ieee80211_sub_if_data, u.mgd.chswitch_work);
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ u32 changed = 0;
+ int ret;
if (!ieee80211_sdata_running(sdata))
return;
@@ -945,24 +886,39 @@ static void ieee80211_chswitch_work(struct work_struct *work)
if (!ifmgd->associated)
goto out;
- local->_oper_chandef = local->csa_chandef;
+ ret = ieee80211_vif_change_channel(sdata, &local->csa_chandef,
+ &changed);
+ if (ret) {
+ sdata_info(sdata,
+ "vif channel switch failed, disconnecting\n");
+ ieee80211_queue_work(&sdata->local->hw,
+ &ifmgd->csa_connection_drop_work);
+ goto out;
+ }
- if (!local->ops->channel_switch) {
- /* call "hw_config" only if doing sw channel switch */
- ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
- } else {
- /* update the device channel directly */
- local->hw.conf.chandef = local->_oper_chandef;
+ if (!local->use_chanctx) {
+ local->_oper_chandef = local->csa_chandef;
+ /* Call "hw_config" only if doing sw channel switch.
+ * Otherwise update the channel directly
+ */
+ if (!local->ops->channel_switch)
+ ieee80211_hw_config(local, 0);
+ else
+ local->hw.conf.chandef = local->_oper_chandef;
}
/* XXX: shouldn't really modify cfg80211-owned data! */
- ifmgd->associated->channel = local->_oper_chandef.chan;
+ ifmgd->associated->channel = local->csa_chandef.chan;
/* XXX: wait for a beacon first? */
ieee80211_wake_queues_by_reason(&local->hw,
IEEE80211_MAX_QUEUE_MAP,
IEEE80211_QUEUE_STOP_REASON_CSA);
+
+ ieee80211_bss_info_change_notify(sdata, changed);
+
out:
+ sdata->vif.csa_active = false;
ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
sdata_unlock(sdata);
}
@@ -1000,20 +956,12 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct cfg80211_bss *cbss = ifmgd->associated;
- struct ieee80211_bss *bss;
struct ieee80211_chanctx *chanctx;
- enum ieee80211_band new_band;
- int new_freq;
- u8 new_chan_no;
+ enum ieee80211_band current_band;
u8 count;
u8 mode;
- struct ieee80211_channel *new_chan;
struct cfg80211_chan_def new_chandef = {};
- struct cfg80211_chan_def new_vht_chandef = {};
- const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
- const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
- const struct ieee80211_ht_operation *ht_oper;
- int secondary_channel_offset = -1;
+ int res;
sdata_assert_lock(sdata);
@@ -1027,162 +975,23 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
return;
- sec_chan_offs = elems->sec_chan_offs;
- wide_bw_chansw_ie = elems->wide_bw_chansw_ie;
- ht_oper = elems->ht_operation;
-
- if (ifmgd->flags & (IEEE80211_STA_DISABLE_HT |
- IEEE80211_STA_DISABLE_40MHZ)) {
- sec_chan_offs = NULL;
- wide_bw_chansw_ie = NULL;
- /* only used for bandwidth here */
- ht_oper = NULL;
- }
-
- if (ifmgd->flags & IEEE80211_STA_DISABLE_VHT)
- wide_bw_chansw_ie = NULL;
-
- if (elems->ext_chansw_ie) {
- if (!ieee80211_operating_class_to_band(
- elems->ext_chansw_ie->new_operating_class,
- &new_band)) {
- sdata_info(sdata,
- "cannot understand ECSA IE operating class %d, disconnecting\n",
- elems->ext_chansw_ie->new_operating_class);
- ieee80211_queue_work(&local->hw,
- &ifmgd->csa_connection_drop_work);
- }
- new_chan_no = elems->ext_chansw_ie->new_ch_num;
- count = elems->ext_chansw_ie->count;
- mode = elems->ext_chansw_ie->mode;
- } else if (elems->ch_switch_ie) {
- new_band = cbss->channel->band;
- new_chan_no = elems->ch_switch_ie->new_ch_num;
- count = elems->ch_switch_ie->count;
- mode = elems->ch_switch_ie->mode;
- } else {
- /* nothing here we understand */
- return;
- }
-
- bss = (void *)cbss->priv;
-
- new_freq = ieee80211_channel_to_frequency(new_chan_no, new_band);
- new_chan = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
- if (!new_chan || new_chan->flags & IEEE80211_CHAN_DISABLED) {
- sdata_info(sdata,
- "AP %pM switches to unsupported channel (%d MHz), disconnecting\n",
- ifmgd->associated->bssid, new_freq);
+ current_band = cbss->channel->band;
+ res = ieee80211_parse_ch_switch_ie(sdata, elems, beacon, current_band,
+ ifmgd->flags,
+ ifmgd->associated->bssid, &count,
+ &mode, &new_chandef);
+ if (res < 0)
ieee80211_queue_work(&local->hw,
&ifmgd->csa_connection_drop_work);
+ if (res)
return;
- }
-
- if (!beacon && sec_chan_offs) {
- secondary_channel_offset = sec_chan_offs->sec_chan_offs;
- } else if (beacon && ht_oper) {
- secondary_channel_offset =
- ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
- } else if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) {
- /*
- * If it's not a beacon, HT is enabled and the IE not present,
- * it's 20 MHz, 802.11-2012 8.5.2.6:
- * This element [the Secondary Channel Offset Element] is
- * present when switching to a 40 MHz channel. It may be
- * present when switching to a 20 MHz channel (in which
- * case the secondary channel offset is set to SCN).
- */
- secondary_channel_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
- }
-
- switch (secondary_channel_offset) {
- default:
- /* secondary_channel_offset was present but is invalid */
- case IEEE80211_HT_PARAM_CHA_SEC_NONE:
- cfg80211_chandef_create(&new_chandef, new_chan,
- NL80211_CHAN_HT20);
- break;
- case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
- cfg80211_chandef_create(&new_chandef, new_chan,
- NL80211_CHAN_HT40PLUS);
- break;
- case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
- cfg80211_chandef_create(&new_chandef, new_chan,
- NL80211_CHAN_HT40MINUS);
- break;
- case -1:
- cfg80211_chandef_create(&new_chandef, new_chan,
- NL80211_CHAN_NO_HT);
- /* keep width for 5/10 MHz channels */
- switch (sdata->vif.bss_conf.chandef.width) {
- case NL80211_CHAN_WIDTH_5:
- case NL80211_CHAN_WIDTH_10:
- new_chandef.width = sdata->vif.bss_conf.chandef.width;
- break;
- default:
- break;
- }
- break;
- }
-
- if (wide_bw_chansw_ie) {
- new_vht_chandef.chan = new_chan;
- new_vht_chandef.center_freq1 =
- ieee80211_channel_to_frequency(
- wide_bw_chansw_ie->new_center_freq_seg0,
- new_band);
-
- switch (wide_bw_chansw_ie->new_channel_width) {
- default:
- /* hmmm, ignore VHT and use HT if present */
- case IEEE80211_VHT_CHANWIDTH_USE_HT:
- new_vht_chandef.chan = NULL;
- break;
- case IEEE80211_VHT_CHANWIDTH_80MHZ:
- new_vht_chandef.width = NL80211_CHAN_WIDTH_80;
- break;
- case IEEE80211_VHT_CHANWIDTH_160MHZ:
- new_vht_chandef.width = NL80211_CHAN_WIDTH_160;
- break;
- case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
- /* field is otherwise reserved */
- new_vht_chandef.center_freq2 =
- ieee80211_channel_to_frequency(
- wide_bw_chansw_ie->new_center_freq_seg1,
- new_band);
- new_vht_chandef.width = NL80211_CHAN_WIDTH_80P80;
- break;
- }
- if (ifmgd->flags & IEEE80211_STA_DISABLE_80P80MHZ &&
- new_vht_chandef.width == NL80211_CHAN_WIDTH_80P80)
- chandef_downgrade(&new_vht_chandef);
- if (ifmgd->flags & IEEE80211_STA_DISABLE_160MHZ &&
- new_vht_chandef.width == NL80211_CHAN_WIDTH_160)
- chandef_downgrade(&new_vht_chandef);
- if (ifmgd->flags & IEEE80211_STA_DISABLE_40MHZ &&
- new_vht_chandef.width > NL80211_CHAN_WIDTH_20)
- chandef_downgrade(&new_vht_chandef);
- }
-
- /* if VHT data is there validate & use it */
- if (new_vht_chandef.chan) {
- if (!cfg80211_chandef_compatible(&new_vht_chandef,
- &new_chandef)) {
- sdata_info(sdata,
- "AP %pM CSA has inconsistent channel data, disconnecting\n",
- ifmgd->associated->bssid);
- ieee80211_queue_work(&local->hw,
- &ifmgd->csa_connection_drop_work);
- return;
- }
- new_chandef = new_vht_chandef;
- }
if (!cfg80211_chandef_usable(local->hw.wiphy, &new_chandef,
IEEE80211_CHAN_DISABLED)) {
sdata_info(sdata,
"AP %pM switches to unsupported channel (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n",
- ifmgd->associated->bssid, new_freq,
+ ifmgd->associated->bssid,
+ new_chandef.chan->center_freq,
new_chandef.width, new_chandef.center_freq1,
new_chandef.center_freq2);
ieee80211_queue_work(&local->hw,
@@ -1191,17 +1000,28 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
}
ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
+ sdata->vif.csa_active = true;
+ mutex_lock(&local->chanctx_mtx);
if (local->use_chanctx) {
- sdata_info(sdata,
- "not handling channel switch with channel contexts\n");
- ieee80211_queue_work(&local->hw,
- &ifmgd->csa_connection_drop_work);
- return;
+ u32 num_chanctx = 0;
+ list_for_each_entry(chanctx, &local->chanctx_list, list)
+ num_chanctx++;
+
+ if (num_chanctx > 1 ||
+ !(local->hw.flags & IEEE80211_HW_CHANCTX_STA_CSA)) {
+ sdata_info(sdata,
+ "not handling chan-switch with channel contexts\n");
+ ieee80211_queue_work(&local->hw,
+ &ifmgd->csa_connection_drop_work);
+ mutex_unlock(&local->chanctx_mtx);
+ return;
+ }
}
- mutex_lock(&local->chanctx_mtx);
if (WARN_ON(!rcu_access_pointer(sdata->vif.chanctx_conf))) {
+ ieee80211_queue_work(&local->hw,
+ &ifmgd->csa_connection_drop_work);
mutex_unlock(&local->chanctx_mtx);
return;
}
@@ -1374,8 +1194,7 @@ static bool ieee80211_powersave_allowed(struct ieee80211_sub_if_data *sdata)
if (!mgd->associated)
return false;
- if (mgd->flags & (IEEE80211_STA_BEACON_POLL |
- IEEE80211_STA_CONNECTION_POLL))
+ if (mgd->flags & IEEE80211_STA_CONNECTION_POLL)
return false;
if (!mgd->have_beacon)
@@ -1691,8 +1510,7 @@ static void __ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata)
{
lockdep_assert_held(&sdata->local->mtx);
- sdata->u.mgd.flags &= ~(IEEE80211_STA_CONNECTION_POLL |
- IEEE80211_STA_BEACON_POLL);
+ sdata->u.mgd.flags &= ~IEEE80211_STA_CONNECTION_POLL;
ieee80211_run_deferred_scan(sdata->local);
}
@@ -1954,11 +1772,8 @@ static void ieee80211_reset_ap_probe(struct ieee80211_sub_if_data *sdata)
struct ieee80211_local *local = sdata->local;
mutex_lock(&local->mtx);
- if (!(ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
- IEEE80211_STA_CONNECTION_POLL))) {
- mutex_unlock(&local->mtx);
- return;
- }
+ if (!(ifmgd->flags & IEEE80211_STA_CONNECTION_POLL))
+ goto out;
__ieee80211_stop_poll(sdata);
@@ -2094,15 +1909,9 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata,
* because otherwise we would reset the timer every time and
* never check whether we received a probe response!
*/
- if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
- IEEE80211_STA_CONNECTION_POLL))
+ if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL)
already = true;
- if (beacon)
- ifmgd->flags |= IEEE80211_STA_BEACON_POLL;
- else
- ifmgd->flags |= IEEE80211_STA_CONNECTION_POLL;
-
mutex_unlock(&sdata->local->mtx);
if (already)
@@ -2174,6 +1983,7 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
true, frame_buf);
ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
+ sdata->vif.csa_active = false;
ieee80211_wake_queues_by_reason(&sdata->local->hw,
IEEE80211_MAX_QUEUE_MAP,
IEEE80211_QUEUE_STOP_REASON_CSA);
@@ -3061,17 +2871,10 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
}
}
- if (ifmgd->flags & IEEE80211_STA_BEACON_POLL) {
+ if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) {
mlme_dbg_ratelimited(sdata,
"cancelling AP probe due to a received beacon\n");
- mutex_lock(&local->mtx);
- ifmgd->flags &= ~IEEE80211_STA_BEACON_POLL;
- ieee80211_run_deferred_scan(local);
- mutex_unlock(&local->mtx);
-
- mutex_lock(&local->iflist_mtx);
- ieee80211_recalc_ps(local, -1);
- mutex_unlock(&local->iflist_mtx);
+ ieee80211_reset_ap_probe(sdata);
}
/*
@@ -3543,8 +3346,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
} else if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started)
run_again(sdata, ifmgd->assoc_data->timeout);
- if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
- IEEE80211_STA_CONNECTION_POLL) &&
+ if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL &&
ifmgd->associated) {
u8 bssid[ETH_ALEN];
int max_tries;
@@ -3876,7 +3678,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
return ret;
while (ret && chandef.width != NL80211_CHAN_WIDTH_20_NOHT) {
- ifmgd->flags |= chandef_downgrade(&chandef);
+ ifmgd->flags |= ieee80211_chandef_downgrade(&chandef);
ret = ieee80211_vif_use_channel(sdata, &chandef,
IEEE80211_CHANCTX_SHARED);
}
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 8b5f7ef7c0c9..7fa1b36e6202 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -203,6 +203,15 @@ minstrel_update_stats(struct minstrel_priv *mp, struct minstrel_sta_info *mi)
memcpy(mi->max_tp_rate, tmp_tp_rate, sizeof(mi->max_tp_rate));
mi->max_prob_rate = tmp_prob_rate;
+#ifdef CONFIG_MAC80211_DEBUGFS
+ /* use fixed index if set */
+ if (mp->fixed_rate_idx != -1) {
+ mi->max_tp_rate[0] = mp->fixed_rate_idx;
+ mi->max_tp_rate[1] = mp->fixed_rate_idx;
+ mi->max_prob_rate = mp->fixed_rate_idx;
+ }
+#endif
+
/* Reset update timer */
mi->stats_update = jiffies;
@@ -310,6 +319,11 @@ minstrel_get_rate(void *priv, struct ieee80211_sta *sta,
/* increase sum packet counter */
mi->packet_count++;
+#ifdef CONFIG_MAC80211_DEBUGFS
+ if (mp->fixed_rate_idx != -1)
+ return;
+#endif
+
delta = (mi->packet_count * sampling_ratio / 100) -
(mi->sample_count + mi->sample_deferred / 2);
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 7c323f27ba23..5d60779a0c1b 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -365,6 +365,14 @@ minstrel_ht_update_stats(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
}
}
+#ifdef CONFIG_MAC80211_DEBUGFS
+ /* use fixed index if set */
+ if (mp->fixed_rate_idx != -1) {
+ mi->max_tp_rate = mp->fixed_rate_idx;
+ mi->max_tp_rate2 = mp->fixed_rate_idx;
+ mi->max_prob_rate = mp->fixed_rate_idx;
+ }
+#endif
mi->stats_update = jiffies;
}
@@ -774,6 +782,11 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
info->flags |= mi->tx_flags;
minstrel_ht_check_cck_shortpreamble(mp, mi, txrc->short_preamble);
+#ifdef CONFIG_MAC80211_DEBUGFS
+ if (mp->fixed_rate_idx != -1)
+ return;
+#endif
+
/* Don't use EAPOL frames for sampling on non-mrr hw */
if (mp->hw->max_rates == 1 &&
(info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO))
@@ -781,16 +794,6 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
else
sample_idx = minstrel_get_sample_rate(mp, mi);
-#ifdef CONFIG_MAC80211_DEBUGFS
- /* use fixed index if set */
- if (mp->fixed_rate_idx != -1) {
- mi->max_tp_rate = mp->fixed_rate_idx;
- mi->max_tp_rate2 = mp->fixed_rate_idx;
- mi->max_prob_rate = mp->fixed_rate_idx;
- sample_idx = -1;
- }
-#endif
-
mi->total_packets++;
/* wraparound */
diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c
index c97a0657c043..6ff134650a84 100644
--- a/net/mac80211/rc80211_pid_debugfs.c
+++ b/net/mac80211/rc80211_pid_debugfs.c
@@ -167,29 +167,29 @@ static ssize_t rate_control_pid_events_read(struct file *file, char __user *buf,
* provide large enough buffers. */
length = length < RC_PID_PRINT_BUF_SIZE ?
length : RC_PID_PRINT_BUF_SIZE;
- p = snprintf(pb, length, "%u %lu ", ev->id, ev->timestamp);
+ p = scnprintf(pb, length, "%u %lu ", ev->id, ev->timestamp);
switch (ev->type) {
case RC_PID_EVENT_TYPE_TX_STATUS:
- p += snprintf(pb + p, length - p, "tx_status %u %u",
- !(ev->data.flags & IEEE80211_TX_STAT_ACK),
- ev->data.tx_status.status.rates[0].idx);
+ p += scnprintf(pb + p, length - p, "tx_status %u %u",
+ !(ev->data.flags & IEEE80211_TX_STAT_ACK),
+ ev->data.tx_status.status.rates[0].idx);
break;
case RC_PID_EVENT_TYPE_RATE_CHANGE:
- p += snprintf(pb + p, length - p, "rate_change %d %d",
- ev->data.index, ev->data.rate);
+ p += scnprintf(pb + p, length - p, "rate_change %d %d",
+ ev->data.index, ev->data.rate);
break;
case RC_PID_EVENT_TYPE_TX_RATE:
- p += snprintf(pb + p, length - p, "tx_rate %d %d",
- ev->data.index, ev->data.rate);
+ p += scnprintf(pb + p, length - p, "tx_rate %d %d",
+ ev->data.index, ev->data.rate);
break;
case RC_PID_EVENT_TYPE_PF_SAMPLE:
- p += snprintf(pb + p, length - p,
- "pf_sample %d %d %d %d",
- ev->data.pf_sample, ev->data.prop_err,
- ev->data.int_err, ev->data.der_err);
+ p += scnprintf(pb + p, length - p,
+ "pf_sample %d %d %d %d",
+ ev->data.pf_sample, ev->data.prop_err,
+ ev->data.int_err, ev->data.der_err);
break;
}
- p += snprintf(pb + p, length - p, "\n");
+ p += scnprintf(pb + p, length - p, "\n");
spin_unlock_irqrestore(&events->lock, status);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 54395d7583ba..f0247a43a75c 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -995,8 +995,9 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
rx->sta->num_duplicates++;
}
return RX_DROP_UNUSABLE;
- } else
+ } else if (!(status->flag & RX_FLAG_AMSDU_MORE)) {
rx->sta->last_seq_ctrl[rx->seqno_idx] = hdr->seq_ctrl;
+ }
}
if (unlikely(rx->skb->len < 16)) {
@@ -2402,7 +2403,8 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
return RX_DROP_UNUSABLE;
if (!rx->sta && mgmt->u.action.category != WLAN_CATEGORY_PUBLIC &&
- mgmt->u.action.category != WLAN_CATEGORY_SELF_PROTECTED)
+ mgmt->u.action.category != WLAN_CATEGORY_SELF_PROTECTED &&
+ mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT)
return RX_DROP_UNUSABLE;
if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
@@ -2566,31 +2568,46 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
goto queue;
case WLAN_CATEGORY_SPECTRUM_MGMT:
- if (status->band != IEEE80211_BAND_5GHZ)
- break;
-
- if (sdata->vif.type != NL80211_IFTYPE_STATION)
- break;
-
/* verify action_code is present */
if (len < IEEE80211_MIN_ACTION_SIZE + 1)
break;
switch (mgmt->u.action.u.measurement.action_code) {
case WLAN_ACTION_SPCT_MSR_REQ:
+ if (status->band != IEEE80211_BAND_5GHZ)
+ break;
+
if (len < (IEEE80211_MIN_ACTION_SIZE +
sizeof(mgmt->u.action.u.measurement)))
break;
+
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
+ break;
+
ieee80211_process_measurement_req(sdata, mgmt, len);
goto handled;
- case WLAN_ACTION_SPCT_CHL_SWITCH:
- if (sdata->vif.type != NL80211_IFTYPE_STATION)
+ case WLAN_ACTION_SPCT_CHL_SWITCH: {
+ u8 *bssid;
+ if (len < (IEEE80211_MIN_ACTION_SIZE +
+ sizeof(mgmt->u.action.u.chan_switch)))
+ break;
+
+ if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+ sdata->vif.type != NL80211_IFTYPE_ADHOC)
break;
- if (!ether_addr_equal(mgmt->bssid, sdata->u.mgd.bssid))
+ if (sdata->vif.type == NL80211_IFTYPE_STATION)
+ bssid = sdata->u.mgd.bssid;
+ else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+ bssid = sdata->u.ibss.bssid;
+ else
+ break;
+
+ if (!ether_addr_equal(mgmt->bssid, bssid))
break;
goto queue;
+ }
}
break;
case WLAN_CATEGORY_SA_QUERY:
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 08afe74b98f4..ecb57b0bf74a 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -391,8 +391,7 @@ static bool ieee80211_can_scan(struct ieee80211_local *local,
return false;
if (sdata->vif.type == NL80211_IFTYPE_STATION &&
- sdata->u.mgd.flags & (IEEE80211_STA_BEACON_POLL |
- IEEE80211_STA_CONNECTION_POLL))
+ sdata->u.mgd.flags & IEEE80211_STA_CONNECTION_POLL)
return false;
return true;
diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index 578eea3fc04d..921597e279a3 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -21,6 +21,168 @@
#include "sta_info.h"
#include "wme.h"
+int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
+ struct ieee802_11_elems *elems, bool beacon,
+ enum ieee80211_band current_band,
+ u32 sta_flags, u8 *bssid, u8 *count, u8 *mode,
+ struct cfg80211_chan_def *new_chandef)
+{
+ enum ieee80211_band new_band;
+ int new_freq;
+ u8 new_chan_no;
+ struct ieee80211_channel *new_chan;
+ struct cfg80211_chan_def new_vht_chandef = {};
+ const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
+ const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
+ const struct ieee80211_ht_operation *ht_oper;
+ int secondary_channel_offset = -1;
+
+ sec_chan_offs = elems->sec_chan_offs;
+ wide_bw_chansw_ie = elems->wide_bw_chansw_ie;
+ ht_oper = elems->ht_operation;
+
+ if (sta_flags & (IEEE80211_STA_DISABLE_HT |
+ IEEE80211_STA_DISABLE_40MHZ)) {
+ sec_chan_offs = NULL;
+ wide_bw_chansw_ie = NULL;
+ /* only used for bandwidth here */
+ ht_oper = NULL;
+ }
+
+ if (sta_flags & IEEE80211_STA_DISABLE_VHT)
+ wide_bw_chansw_ie = NULL;
+
+ if (elems->ext_chansw_ie) {
+ if (!ieee80211_operating_class_to_band(
+ elems->ext_chansw_ie->new_operating_class,
+ &new_band)) {
+ sdata_info(sdata,
+ "cannot understand ECSA IE operating class %d, disconnecting\n",
+ elems->ext_chansw_ie->new_operating_class);
+ return -EINVAL;
+ }
+ new_chan_no = elems->ext_chansw_ie->new_ch_num;
+ *count = elems->ext_chansw_ie->count;
+ *mode = elems->ext_chansw_ie->mode;
+ } else if (elems->ch_switch_ie) {
+ new_band = current_band;
+ new_chan_no = elems->ch_switch_ie->new_ch_num;
+ *count = elems->ch_switch_ie->count;
+ *mode = elems->ch_switch_ie->mode;
+ } else {
+ /* nothing here we understand */
+ return 1;
+ }
+
+ new_freq = ieee80211_channel_to_frequency(new_chan_no, new_band);
+ new_chan = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
+ if (!new_chan || new_chan->flags & IEEE80211_CHAN_DISABLED) {
+ sdata_info(sdata,
+ "BSS %pM switches to unsupported channel (%d MHz), disconnecting\n",
+ bssid, new_freq);
+ return -EINVAL;
+ }
+
+ if (!beacon && sec_chan_offs) {
+ secondary_channel_offset = sec_chan_offs->sec_chan_offs;
+ } else if (beacon && ht_oper) {
+ secondary_channel_offset =
+ ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
+ } else if (!(sta_flags & IEEE80211_STA_DISABLE_HT)) {
+ /* If it's not a beacon, HT is enabled and the IE not present,
+ * it's 20 MHz, 802.11-2012 8.5.2.6:
+ * This element [the Secondary Channel Offset Element] is
+ * present when switching to a 40 MHz channel. It may be
+ * present when switching to a 20 MHz channel (in which
+ * case the secondary channel offset is set to SCN).
+ */
+ secondary_channel_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
+ }
+
+ switch (secondary_channel_offset) {
+ default:
+ /* secondary_channel_offset was present but is invalid */
+ case IEEE80211_HT_PARAM_CHA_SEC_NONE:
+ cfg80211_chandef_create(new_chandef, new_chan,
+ NL80211_CHAN_HT20);
+ break;
+ case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
+ cfg80211_chandef_create(new_chandef, new_chan,
+ NL80211_CHAN_HT40PLUS);
+ break;
+ case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
+ cfg80211_chandef_create(new_chandef, new_chan,
+ NL80211_CHAN_HT40MINUS);
+ break;
+ case -1:
+ cfg80211_chandef_create(new_chandef, new_chan,
+ NL80211_CHAN_NO_HT);
+ /* keep width for 5/10 MHz channels */
+ switch (sdata->vif.bss_conf.chandef.width) {
+ case NL80211_CHAN_WIDTH_5:
+ case NL80211_CHAN_WIDTH_10:
+ new_chandef->width = sdata->vif.bss_conf.chandef.width;
+ break;
+ default:
+ break;
+ }
+ break;
+ }
+
+ if (wide_bw_chansw_ie) {
+ new_vht_chandef.chan = new_chan;
+ new_vht_chandef.center_freq1 =
+ ieee80211_channel_to_frequency(
+ wide_bw_chansw_ie->new_center_freq_seg0,
+ new_band);
+
+ switch (wide_bw_chansw_ie->new_channel_width) {
+ default:
+ /* hmmm, ignore VHT and use HT if present */
+ case IEEE80211_VHT_CHANWIDTH_USE_HT:
+ new_vht_chandef.chan = NULL;
+ break;
+ case IEEE80211_VHT_CHANWIDTH_80MHZ:
+ new_vht_chandef.width = NL80211_CHAN_WIDTH_80;
+ break;
+ case IEEE80211_VHT_CHANWIDTH_160MHZ:
+ new_vht_chandef.width = NL80211_CHAN_WIDTH_160;
+ break;
+ case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
+ /* field is otherwise reserved */
+ new_vht_chandef.center_freq2 =
+ ieee80211_channel_to_frequency(
+ wide_bw_chansw_ie->new_center_freq_seg1,
+ new_band);
+ new_vht_chandef.width = NL80211_CHAN_WIDTH_80P80;
+ break;
+ }
+ if (sta_flags & IEEE80211_STA_DISABLE_80P80MHZ &&
+ new_vht_chandef.width == NL80211_CHAN_WIDTH_80P80)
+ ieee80211_chandef_downgrade(&new_vht_chandef);
+ if (sta_flags & IEEE80211_STA_DISABLE_160MHZ &&
+ new_vht_chandef.width == NL80211_CHAN_WIDTH_160)
+ ieee80211_chandef_downgrade(&new_vht_chandef);
+ if (sta_flags & IEEE80211_STA_DISABLE_40MHZ &&
+ new_vht_chandef.width > NL80211_CHAN_WIDTH_20)
+ ieee80211_chandef_downgrade(&new_vht_chandef);
+ }
+
+ /* if VHT data is there validate & use it */
+ if (new_vht_chandef.chan) {
+ if (!cfg80211_chandef_compatible(&new_vht_chandef,
+ new_chandef)) {
+ sdata_info(sdata,
+ "BSS %pM: CSA has inconsistent channel data, disconnecting\n",
+ bssid);
+ return -EINVAL;
+ }
+ *new_chandef = new_vht_chandef;
+ }
+
+ return 0;
+}
+
static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_data *sdata,
struct ieee80211_msrment_ie *request_ie,
const u8 *da, const u8 *bssid,
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 1aba645882bd..5d62c5804819 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -1475,6 +1475,41 @@ DEFINE_EVENT(local_sdata_evt, drv_ipv6_addr_change,
);
#endif
+TRACE_EVENT(drv_join_ibss,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_bss_conf *info),
+
+ TP_ARGS(local, sdata, info),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ VIF_ENTRY
+ __field(u8, dtimper)
+ __field(u16, bcnint)
+ __dynamic_array(u8, ssid, info->ssid_len);
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ VIF_ASSIGN;
+ __entry->dtimper = info->dtim_period;
+ __entry->bcnint = info->beacon_int;
+ memcpy(__get_dynamic_array(ssid), info->ssid, info->ssid_len);
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT VIF_PR_FMT,
+ LOCAL_PR_ARG, VIF_PR_ARG
+ )
+);
+
+DEFINE_EVENT(local_sdata_evt, drv_leave_ibss,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata),
+ TP_ARGS(local, sdata)
+);
+
/*
* Tracing for API calls that drivers call.
*/
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 3456c0486b48..4fcbf634b548 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1981,7 +1981,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
* EAPOL frames from the local station.
*/
if (unlikely(!ieee80211_vif_is_mesh(&sdata->vif) &&
- !is_multicast_ether_addr(hdr.addr1) && !authorized &&
+ !multicast && !authorized &&
(cpu_to_be16(ethertype) != sdata->control_port_protocol ||
!ether_addr_equal(sdata->vif.addr, skb->data + ETH_ALEN)))) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
@@ -2357,15 +2357,31 @@ static void ieee80211_update_csa(struct ieee80211_sub_if_data *sdata,
struct probe_resp *resp;
int counter_offset_beacon = sdata->csa_counter_offset_beacon;
int counter_offset_presp = sdata->csa_counter_offset_presp;
+ u8 *beacon_data;
+ size_t beacon_data_len;
+
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_AP:
+ beacon_data = beacon->tail;
+ beacon_data_len = beacon->tail_len;
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ beacon_data = beacon->head;
+ beacon_data_len = beacon->head_len;
+ break;
+ default:
+ return;
+ }
+ if (WARN_ON(counter_offset_beacon >= beacon_data_len))
+ return;
/* warn if the driver did not check for/react to csa completeness */
- if (WARN_ON(((u8 *)beacon->tail)[counter_offset_beacon] == 0))
+ if (WARN_ON(beacon_data[counter_offset_beacon] == 0))
return;
- ((u8 *)beacon->tail)[counter_offset_beacon]--;
+ beacon_data[counter_offset_beacon]--;
- if (sdata->vif.type == NL80211_IFTYPE_AP &&
- counter_offset_presp) {
+ if (sdata->vif.type == NL80211_IFTYPE_AP && counter_offset_presp) {
rcu_read_lock();
resp = rcu_dereference(sdata->u.ap.probe_resp);
@@ -2400,6 +2416,15 @@ bool ieee80211_csa_is_complete(struct ieee80211_vif *vif)
goto out;
beacon_data = beacon->tail;
beacon_data_len = beacon->tail_len;
+ } else if (vif->type == NL80211_IFTYPE_ADHOC) {
+ struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+
+ beacon = rcu_dereference(ifibss->presp);
+ if (!beacon)
+ goto out;
+
+ beacon_data = beacon->head;
+ beacon_data_len = beacon->head_len;
} else {
WARN_ON(1);
goto out;
@@ -2484,6 +2509,10 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
if (!presp)
goto out;
+ if (sdata->vif.csa_active)
+ ieee80211_update_csa(sdata, presp);
+
+
skb = dev_alloc_skb(local->tx_headroom + presp->head_len);
if (!skb)
goto out;
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index e1b34a18b243..550a6880625d 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -567,18 +567,15 @@ void ieee80211_flush_queues(struct ieee80211_local *local,
IEEE80211_QUEUE_STOP_REASON_FLUSH);
}
-void ieee80211_iterate_active_interfaces(
- struct ieee80211_hw *hw, u32 iter_flags,
- void (*iterator)(void *data, u8 *mac,
- struct ieee80211_vif *vif),
- void *data)
+static void __iterate_active_interfaces(struct ieee80211_local *local,
+ u32 iter_flags,
+ void (*iterator)(void *data, u8 *mac,
+ struct ieee80211_vif *vif),
+ void *data)
{
- struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_sub_if_data *sdata;
- mutex_lock(&local->iflist_mtx);
-
- list_for_each_entry(sdata, &local->interfaces, list) {
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
switch (sdata->vif.type) {
case NL80211_IFTYPE_MONITOR:
if (!(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
@@ -597,13 +594,25 @@ void ieee80211_iterate_active_interfaces(
&sdata->vif);
}
- sdata = rcu_dereference_protected(local->monitor_sdata,
- lockdep_is_held(&local->iflist_mtx));
+ sdata = rcu_dereference_check(local->monitor_sdata,
+ lockdep_is_held(&local->iflist_mtx) ||
+ lockdep_rtnl_is_held());
if (sdata &&
(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL ||
sdata->flags & IEEE80211_SDATA_IN_DRIVER))
iterator(data, sdata->vif.addr, &sdata->vif);
+}
+
+void ieee80211_iterate_active_interfaces(
+ struct ieee80211_hw *hw, u32 iter_flags,
+ void (*iterator)(void *data, u8 *mac,
+ struct ieee80211_vif *vif),
+ void *data)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ mutex_lock(&local->iflist_mtx);
+ __iterate_active_interfaces(local, iter_flags, iterator, data);
mutex_unlock(&local->iflist_mtx);
}
EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces);
@@ -615,38 +624,26 @@ void ieee80211_iterate_active_interfaces_atomic(
void *data)
{
struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_sub_if_data *sdata;
rcu_read_lock();
+ __iterate_active_interfaces(local, iter_flags, iterator, data);
+ rcu_read_unlock();
+}
+EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic);
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- switch (sdata->vif.type) {
- case NL80211_IFTYPE_MONITOR:
- if (!(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
- continue;
- break;
- case NL80211_IFTYPE_AP_VLAN:
- continue;
- default:
- break;
- }
- if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) &&
- !(sdata->flags & IEEE80211_SDATA_IN_DRIVER))
- continue;
- if (ieee80211_sdata_running(sdata))
- iterator(data, sdata->vif.addr,
- &sdata->vif);
- }
+void ieee80211_iterate_active_interfaces_rtnl(
+ struct ieee80211_hw *hw, u32 iter_flags,
+ void (*iterator)(void *data, u8 *mac,
+ struct ieee80211_vif *vif),
+ void *data)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
- sdata = rcu_dereference(local->monitor_sdata);
- if (sdata &&
- (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL ||
- sdata->flags & IEEE80211_SDATA_IN_DRIVER))
- iterator(data, sdata->vif.addr, &sdata->vif);
+ ASSERT_RTNL();
- rcu_read_unlock();
+ __iterate_active_interfaces(local, iter_flags, iterator, data);
}
-EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic);
+EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_rtnl);
/*
* Nothing should have been stuffed into the workqueue during
@@ -1007,14 +1004,21 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
*/
enable_qos = (sdata->vif.type != NL80211_IFTYPE_STATION);
- for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
- /* Set defaults according to 802.11-2007 Table 7-37 */
- aCWmax = 1023;
- if (use_11b)
- aCWmin = 31;
- else
- aCWmin = 15;
+ /* Set defaults according to 802.11-2007 Table 7-37 */
+ aCWmax = 1023;
+ if (use_11b)
+ aCWmin = 31;
+ else
+ aCWmin = 15;
+
+ /* Confiure old 802.11b/g medium access rules. */
+ qparam.cw_max = aCWmax;
+ qparam.cw_min = aCWmin;
+ qparam.txop = 0;
+ qparam.aifs = 2;
+ for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
+ /* Update if QoS is enabled. */
if (enable_qos) {
switch (ac) {
case IEEE80211_AC_BK:
@@ -1050,12 +1054,6 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
qparam.aifs = 2;
break;
}
- } else {
- /* Confiure old 802.11b/g medium access rules. */
- qparam.cw_max = aCWmax;
- qparam.cw_min = aCWmin;
- qparam.txop = 0;
- qparam.aifs = 2;
}
qparam.uapsd = false;
@@ -1084,8 +1082,8 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt;
int err;
- skb = dev_alloc_skb(local->hw.extra_tx_headroom +
- sizeof(*mgmt) + 6 + extra_len);
+ /* 24 + 6 = header + auth_algo + auth_transaction + status_code */
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 6 + extra_len);
if (!skb)
return;
@@ -2295,3 +2293,63 @@ void ieee80211_radar_detected(struct ieee80211_hw *hw)
ieee80211_queue_work(hw, &local->radar_detected_work);
}
EXPORT_SYMBOL(ieee80211_radar_detected);
+
+u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c)
+{
+ u32 ret;
+ int tmp;
+
+ switch (c->width) {
+ case NL80211_CHAN_WIDTH_20:
+ c->width = NL80211_CHAN_WIDTH_20_NOHT;
+ ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
+ break;
+ case NL80211_CHAN_WIDTH_40:
+ c->width = NL80211_CHAN_WIDTH_20;
+ c->center_freq1 = c->chan->center_freq;
+ ret = IEEE80211_STA_DISABLE_40MHZ |
+ IEEE80211_STA_DISABLE_VHT;
+ break;
+ case NL80211_CHAN_WIDTH_80:
+ tmp = (30 + c->chan->center_freq - c->center_freq1)/20;
+ /* n_P40 */
+ tmp /= 2;
+ /* freq_P40 */
+ c->center_freq1 = c->center_freq1 - 20 + 40 * tmp;
+ c->width = NL80211_CHAN_WIDTH_40;
+ ret = IEEE80211_STA_DISABLE_VHT;
+ break;
+ case NL80211_CHAN_WIDTH_80P80:
+ c->center_freq2 = 0;
+ c->width = NL80211_CHAN_WIDTH_80;
+ ret = IEEE80211_STA_DISABLE_80P80MHZ |
+ IEEE80211_STA_DISABLE_160MHZ;
+ break;
+ case NL80211_CHAN_WIDTH_160:
+ /* n_P20 */
+ tmp = (70 + c->chan->center_freq - c->center_freq1)/20;
+ /* n_P80 */
+ tmp /= 4;
+ c->center_freq1 = c->center_freq1 - 40 + 80 * tmp;
+ c->width = NL80211_CHAN_WIDTH_80;
+ ret = IEEE80211_STA_DISABLE_80P80MHZ |
+ IEEE80211_STA_DISABLE_160MHZ;
+ break;
+ default:
+ case NL80211_CHAN_WIDTH_20_NOHT:
+ WARN_ON_ONCE(1);
+ c->width = NL80211_CHAN_WIDTH_20_NOHT;
+ ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
+ break;
+ case NL80211_CHAN_WIDTH_5:
+ case NL80211_CHAN_WIDTH_10:
+ WARN_ON_ONCE(1);
+ /* keep c->width */
+ ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
+ break;
+ }
+
+ WARN_ON_ONCE(!cfg80211_chandef_valid(c));
+
+ return ret;
+}
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index 97c289414e32..de0112785aae 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -185,13 +185,13 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE) {
vht_cap->cap |= cap_info &
(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
- IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX |
IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX);
}
if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
vht_cap->cap |= cap_info &
- IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE;
+ (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
+ IEEE80211_VHT_CAP_BEAMFORMEE_STS_MAX);
if (own_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
vht_cap->cap |= cap_info &
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index 50f6195c8b70..16f3c3a7b2c1 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -328,6 +328,7 @@ int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
return cfg80211_get_chans_dfs_required(wiphy, chandef->center_freq2,
width);
}
+EXPORT_SYMBOL(cfg80211_chandef_dfs_required);
static bool cfg80211_secondary_chans_ok(struct wiphy *wiphy,
u32 center_freq, u32 bandwidth,
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 9ad43c619c54..b43efac4efca 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -382,15 +382,6 @@ int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev,
enum cfg80211_chan_mode chanmode,
u8 radar_detect);
-/**
- * cfg80211_chandef_dfs_required - checks if radar detection is required
- * @wiphy: the wiphy to validate against
- * @chandef: the channel definition to check
- * Return: 1 if radar detection is required, 0 if it is not, < 0 on error
- */
-int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
- const struct cfg80211_chan_def *c);
-
void cfg80211_set_dfs_state(struct wiphy *wiphy,
const struct cfg80211_chan_def *chandef,
enum nl80211_dfs_state dfs_state);
diff --git a/net/wireless/debugfs.c b/net/wireless/debugfs.c
index 90d050036624..454157717efa 100644
--- a/net/wireless/debugfs.c
+++ b/net/wireless/debugfs.c
@@ -47,17 +47,19 @@ static int ht_print_chan(struct ieee80211_channel *chan,
return 0;
if (chan->flags & IEEE80211_CHAN_DISABLED)
- return snprintf(buf + offset,
- buf_size - offset,
- "%d Disabled\n",
- chan->center_freq);
-
- return snprintf(buf + offset,
- buf_size - offset,
- "%d HT40 %c%c\n",
- chan->center_freq,
- (chan->flags & IEEE80211_CHAN_NO_HT40MINUS) ? ' ' : '-',
- (chan->flags & IEEE80211_CHAN_NO_HT40PLUS) ? ' ' : '+');
+ return scnprintf(buf + offset,
+ buf_size - offset,
+ "%d Disabled\n",
+ chan->center_freq);
+
+ return scnprintf(buf + offset,
+ buf_size - offset,
+ "%d HT40 %c%c\n",
+ chan->center_freq,
+ (chan->flags & IEEE80211_CHAN_NO_HT40MINUS) ?
+ ' ' : '-',
+ (chan->flags & IEEE80211_CHAN_NO_HT40PLUS) ?
+ ' ' : '+');
}
static ssize_t ht40allow_map_read(struct file *file,
diff --git a/net/wireless/genregdb.awk b/net/wireless/genregdb.awk
index 9392f8cbb901..42ed274e81f4 100644
--- a/net/wireless/genregdb.awk
+++ b/net/wireless/genregdb.awk
@@ -46,6 +46,12 @@ BEGIN {
sub(/:/, "", country)
printf "static const struct ieee80211_regdomain regdom_%s = {\n", country
printf "\t.alpha2 = \"%s\",\n", country
+ if ($NF ~ /DFS-ETSI/)
+ printf "\t.dfs_region = NL80211_DFS_ETSI,\n"
+ else if ($NF ~ /DFS-FCC/)
+ printf "\t.dfs_region = NL80211_DFS_FCC,\n"
+ else if ($NF ~ /DFS-JP/)
+ printf "\t.dfs_region = NL80211_DFS_JP,\n"
printf "\t.reg_rules = {\n"
active = 1
regdb = regdb "\t&regdom_" country ",\n"
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index af8d84a4a5b2..2838206ddad3 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -5591,6 +5591,9 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
if (err)
return err;
+ if (netif_carrier_ok(dev))
+ return -EBUSY;
+
if (wdev->cac_started)
return -EBUSY;
@@ -5634,15 +5637,26 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
u8 radar_detect_width = 0;
int err;
+ bool need_new_beacon = false;
if (!rdev->ops->channel_switch ||
!(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
return -EOPNOTSUPP;
- /* may add IBSS support later */
- if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
+ switch (dev->ieee80211_ptr->iftype) {
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_P2P_GO:
+ need_new_beacon = true;
+
+ /* useless if AP is not running */
+ if (!wdev->beacon_interval)
+ return -EINVAL;
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ break;
+ default:
return -EOPNOTSUPP;
+ }
memset(&params, 0, sizeof(params));
@@ -5651,15 +5665,16 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
return -EINVAL;
/* only important for AP, IBSS and mesh create IEs internally */
- if (!info->attrs[NL80211_ATTR_CSA_IES])
- return -EINVAL;
-
- /* useless if AP is not running */
- if (!wdev->beacon_interval)
+ if (need_new_beacon &&
+ (!info->attrs[NL80211_ATTR_CSA_IES] ||
+ !info->attrs[NL80211_ATTR_CSA_C_OFF_BEACON]))
return -EINVAL;
params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
+ if (!need_new_beacon)
+ goto skip_beacons;
+
err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
if (err)
return err;
@@ -5699,6 +5714,7 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
return -EINVAL;
}
+skip_beacons:
err = nl80211_parse_chandef(rdev, info, &params.chandef);
if (err)
return err;
@@ -5706,12 +5722,17 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
return -EINVAL;
- err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
- if (err < 0) {
- return err;
- } else if (err) {
- radar_detect_width = BIT(params.chandef.width);
- params.radar_required = true;
+ /* DFS channels are only supported for AP/P2P GO ... for now. */
+ if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP ||
+ dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO) {
+ err = cfg80211_chandef_dfs_required(wdev->wiphy,
+ &params.chandef);
+ if (err < 0) {
+ return err;
+ } else if (err) {
+ radar_detect_width = BIT(params.chandef.width);
+ params.radar_required = true;
+ }
}
err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
@@ -10740,7 +10761,8 @@ void cfg80211_ch_switch_notify(struct net_device *dev,
wdev_lock(wdev);
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
- wdev->iftype != NL80211_IFTYPE_P2P_GO))
+ wdev->iftype != NL80211_IFTYPE_P2P_GO &&
+ wdev->iftype != NL80211_IFTYPE_ADHOC))
goto out;
wdev->channel = chandef->chan;
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index de06d5d1287f..d62cb1e91475 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -172,11 +172,21 @@ static const struct ieee80211_regdomain world_regdom = {
NL80211_RRF_NO_IBSS |
NL80211_RRF_NO_OFDM),
/* IEEE 802.11a, channel 36..48 */
- REG_RULE(5180-10, 5240+10, 80, 6, 20,
+ REG_RULE(5180-10, 5240+10, 160, 6, 20,
NL80211_RRF_PASSIVE_SCAN |
NL80211_RRF_NO_IBSS),
- /* NB: 5260 MHz - 5700 MHz requires DFS */
+ /* IEEE 802.11a, channel 52..64 - DFS required */
+ REG_RULE(5260-10, 5320+10, 160, 6, 20,
+ NL80211_RRF_PASSIVE_SCAN |
+ NL80211_RRF_NO_IBSS |
+ NL80211_RRF_DFS),
+
+ /* IEEE 802.11a, channel 100..144 - DFS required */
+ REG_RULE(5500-10, 5720+10, 160, 6, 20,
+ NL80211_RRF_PASSIVE_SCAN |
+ NL80211_RRF_NO_IBSS |
+ NL80211_RRF_DFS),
/* IEEE 802.11a, channel 149..165 */
REG_RULE(5745-10, 5825+10, 80, 6, 20,
diff --git a/net/wireless/util.c b/net/wireless/util.c
index ce090c1c5e4f..3c8be6104ba4 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -10,6 +10,7 @@
#include <net/cfg80211.h>
#include <net/ip.h>
#include <net/dsfield.h>
+#include <linux/if_vlan.h>
#include "core.h"
#include "rdev-ops.h"
@@ -691,6 +692,7 @@ EXPORT_SYMBOL(ieee80211_amsdu_to_8023s);
unsigned int cfg80211_classify8021d(struct sk_buff *skb)
{
unsigned int dscp;
+ unsigned char vlan_priority;
/* skb->priority values from 256->263 are magic values to
* directly indicate a specific 802.1d priority. This is used
@@ -700,6 +702,13 @@ unsigned int cfg80211_classify8021d(struct sk_buff *skb)
if (skb->priority >= 256 && skb->priority <= 263)
return skb->priority - 256;
+ if (vlan_tx_tag_present(skb)) {
+ vlan_priority = (vlan_tx_tag_get(skb) & VLAN_PRIO_MASK)
+ >> VLAN_PRIO_SHIFT;
+ if (vlan_priority > 0)
+ return vlan_priority;
+ }
+
switch (skb->protocol) {
case htons(ETH_P_IP):
dscp = ipv4_get_dsfield(ip_hdr(skb)) & 0xfc;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-16 11:26:44 +0000