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-rw-r--r--net/mac80211/cfg.c57
-rw-r--r--net/mac80211/chan.c54
-rw-r--r--net/mac80211/debugfs_netdev.c11
-rw-r--r--net/mac80211/debugfs_sta.c2
-rw-r--r--net/mac80211/ibss.c146
-rw-r--r--net/mac80211/ieee80211_i.h49
-rw-r--r--net/mac80211/iface.c121
-rw-r--r--net/mac80211/main.c82
-rw-r--r--net/mac80211/mesh.c6
-rw-r--r--net/mac80211/mesh.h3
-rw-r--r--net/mac80211/mesh_hwmp.c28
-rw-r--r--net/mac80211/mesh_pathtbl.c56
-rw-r--r--net/mac80211/mesh_plink.c6
-rw-r--r--net/mac80211/mlme.c442
-rw-r--r--net/mac80211/offchannel.c6
-rw-r--r--net/mac80211/pm.c11
-rw-r--r--net/mac80211/rate.c324
-rw-r--r--net/mac80211/rc80211_minstrel.c206
-rw-r--r--net/mac80211/rc80211_minstrel.h7
-rw-r--r--net/mac80211/rc80211_minstrel_debugfs.c4
-rw-r--r--net/mac80211/rc80211_minstrel_ht.c172
-rw-r--r--net/mac80211/rc80211_minstrel_ht.h2
-rw-r--r--net/mac80211/rx.c24
-rw-r--r--net/mac80211/scan.c13
-rw-r--r--net/mac80211/trace.h51
-rw-r--r--net/mac80211/tx.c153
-rw-r--r--net/mac80211/util.c103
27 files changed, 1309 insertions, 830 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index c50c19402588..1a89c80e6407 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -805,8 +805,7 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
IEEE80211_CHANCTX_EXCLUSIVE);
}
} else if (local->open_count == local->monitors) {
- local->_oper_channel = chandef->chan;
- local->_oper_channel_type = cfg80211_get_chandef_type(chandef);
+ local->_oper_chandef = *chandef;
ieee80211_hw_config(local, 0);
}
@@ -965,8 +964,13 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
sdata->vif.bss_conf.hidden_ssid =
(params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
- sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow;
- sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps;
+ memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
+ sizeof(sdata->vif.bss_conf.p2p_noa_attr));
+ sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
+ params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
+ if (params->p2p_opp_ps)
+ sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
+ IEEE80211_P2P_OPPPS_ENABLE_BIT;
err = ieee80211_assign_beacon(sdata, &params->beacon);
if (err < 0)
@@ -1039,6 +1043,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
sta_info_flush_defer(vlan);
sta_info_flush_defer(sdata);
+ synchronize_net();
rcu_barrier();
list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
sta_info_flush_cleanup(vlan);
@@ -1048,6 +1053,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
ieee80211_free_keys(sdata);
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);
@@ -1536,7 +1542,6 @@ static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
struct ieee80211_sub_if_data *sdata;
struct mesh_path *mpath;
struct sta_info *sta;
- int err;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
@@ -1547,17 +1552,12 @@ static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
return -ENOENT;
}
- err = mesh_path_add(sdata, dst);
- if (err) {
+ mpath = mesh_path_add(sdata, dst);
+ if (IS_ERR(mpath)) {
rcu_read_unlock();
- return err;
+ return PTR_ERR(mpath);
}
- mpath = mesh_path_lookup(sdata, dst);
- if (!mpath) {
- rcu_read_unlock();
- return -ENXIO;
- }
mesh_path_fix_nexthop(mpath, sta);
rcu_read_unlock();
@@ -1961,12 +1961,20 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
}
if (params->p2p_ctwindow >= 0) {
- sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow;
+ sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
+ ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
+ sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
+ params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
changed |= BSS_CHANGED_P2P_PS;
}
- if (params->p2p_opp_ps >= 0) {
- sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps;
+ if (params->p2p_opp_ps > 0) {
+ sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
+ IEEE80211_P2P_OPPPS_ENABLE_BIT;
+ changed |= BSS_CHANGED_P2P_PS;
+ } else if (params->p2p_opp_ps == 0) {
+ sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
+ ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
changed |= BSS_CHANGED_P2P_PS;
}
@@ -2410,9 +2418,22 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
}
for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
+ struct ieee80211_supported_band *sband = wiphy->bands[i];
+ int j;
+
sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs,
sizeof(mask->control[i].mcs));
+
+ sdata->rc_has_mcs_mask[i] = false;
+ if (!sband)
+ continue;
+
+ for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
+ if (~sdata->rc_rateidx_mcs_mask[i][j]) {
+ sdata->rc_has_mcs_mask[i] = true;
+ break;
+ }
}
return 0;
@@ -3362,9 +3383,7 @@ static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
if (local->use_chanctx)
*chandef = local->monitor_chandef;
else
- cfg80211_chandef_create(chandef,
- local->_oper_channel,
- local->_oper_channel_type);
+ *chandef = local->_oper_chandef;
ret = 0;
}
rcu_read_unlock();
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 931be419ab5a..03e8d2e3270e 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -22,7 +22,7 @@ static void ieee80211_change_chanctx(struct ieee80211_local *local,
drv_change_chanctx(local, ctx, IEEE80211_CHANCTX_CHANGE_WIDTH);
if (!local->use_chanctx) {
- local->_oper_channel_type = cfg80211_get_chandef_type(chandef);
+ local->_oper_chandef = *chandef;
ieee80211_hw_config(local, 0);
}
}
@@ -57,6 +57,22 @@ ieee80211_find_chanctx(struct ieee80211_local *local,
return NULL;
}
+static bool ieee80211_is_radar_required(struct ieee80211_local *local)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ if (sdata->radar_required) {
+ rcu_read_unlock();
+ return true;
+ }
+ }
+ rcu_read_unlock();
+
+ return false;
+}
+
static struct ieee80211_chanctx *
ieee80211_new_chanctx(struct ieee80211_local *local,
const struct cfg80211_chan_def *chandef,
@@ -76,6 +92,9 @@ ieee80211_new_chanctx(struct ieee80211_local *local,
ctx->conf.rx_chains_static = 1;
ctx->conf.rx_chains_dynamic = 1;
ctx->mode = mode;
+ ctx->conf.radar_enabled = ieee80211_is_radar_required(local);
+ if (!local->use_chanctx)
+ local->hw.conf.radar_enabled = ctx->conf.radar_enabled;
/* acquire mutex to prevent idle from changing */
mutex_lock(&local->mtx);
@@ -85,9 +104,7 @@ ieee80211_new_chanctx(struct ieee80211_local *local,
ieee80211_hw_config(local, changed);
if (!local->use_chanctx) {
- local->_oper_channel_type =
- cfg80211_get_chandef_type(chandef);
- local->_oper_channel = chandef->chan;
+ local->_oper_chandef = *chandef;
ieee80211_hw_config(local, 0);
} else {
err = drv_add_chanctx(local, ctx);
@@ -112,12 +129,24 @@ ieee80211_new_chanctx(struct ieee80211_local *local,
static void ieee80211_free_chanctx(struct ieee80211_local *local,
struct ieee80211_chanctx *ctx)
{
+ bool check_single_channel = false;
lockdep_assert_held(&local->chanctx_mtx);
WARN_ON_ONCE(ctx->refcount != 0);
if (!local->use_chanctx) {
- local->_oper_channel_type = NL80211_CHAN_NO_HT;
+ struct cfg80211_chan_def *chandef = &local->_oper_chandef;
+ chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
+ chandef->center_freq1 = chandef->chan->center_freq;
+ chandef->center_freq2 = 0;
+
+ /* NOTE: Disabling radar is only valid here for
+ * single channel context. To be sure, check it ...
+ */
+ if (local->hw.conf.radar_enabled)
+ check_single_channel = true;
+ local->hw.conf.radar_enabled = false;
+
ieee80211_hw_config(local, 0);
} else {
drv_remove_chanctx(local, ctx);
@@ -126,6 +155,9 @@ static void ieee80211_free_chanctx(struct ieee80211_local *local,
list_del_rcu(&ctx->list);
kfree_rcu(ctx, rcu_head);
+ /* throw a warning if this wasn't the only channel context. */
+ WARN_ON(check_single_channel && !list_empty(&local->chanctx_list));
+
mutex_lock(&local->mtx);
ieee80211_recalc_idle(local);
mutex_unlock(&local->mtx);
@@ -237,19 +269,11 @@ static void __ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata)
void ieee80211_recalc_radar_chanctx(struct ieee80211_local *local,
struct ieee80211_chanctx *chanctx)
{
- struct ieee80211_sub_if_data *sdata;
- bool radar_enabled = false;
+ bool radar_enabled;
lockdep_assert_held(&local->chanctx_mtx);
- rcu_read_lock();
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- if (sdata->radar_required) {
- radar_enabled = true;
- break;
- }
- }
- rcu_read_unlock();
+ radar_enabled = ieee80211_is_radar_required(local);
if (radar_enabled == chanctx->conf.radar_enabled)
return;
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index ddb426867904..14abcf44f974 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -124,6 +124,15 @@ static ssize_t ieee80211_if_fmt_##name( \
return scnprintf(buf, buflen, "%d\n", sdata->field / 16); \
}
+#define IEEE80211_IF_FMT_JIFFIES_TO_MS(name, field) \
+static ssize_t ieee80211_if_fmt_##name( \
+ const struct ieee80211_sub_if_data *sdata, \
+ char *buf, int buflen) \
+{ \
+ return scnprintf(buf, buflen, "%d\n", \
+ jiffies_to_msecs(sdata->field)); \
+}
+
#define __IEEE80211_IF_FILE(name, _write) \
static ssize_t ieee80211_if_read_##name(struct file *file, \
char __user *userbuf, \
@@ -197,6 +206,7 @@ IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
IEEE80211_IF_FILE(last_beacon, u.mgd.last_beacon_signal, DEC);
IEEE80211_IF_FILE(ave_beacon, u.mgd.ave_beacon_signal, DEC_DIV_16);
+IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS);
static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
enum ieee80211_smps_mode smps_mode)
@@ -542,6 +552,7 @@ static void add_sta_files(struct ieee80211_sub_if_data *sdata)
DEBUGFS_ADD(aid);
DEBUGFS_ADD(last_beacon);
DEBUGFS_ADD(ave_beacon);
+ DEBUGFS_ADD(beacon_timeout);
DEBUGFS_ADD_MODE(smps, 0600);
DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
DEBUGFS_ADD_MODE(uapsd_queues, 0600);
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 4f841fe559df..44e201d60a13 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -54,6 +54,7 @@ STA_FILE(aid, sta.aid, D);
STA_FILE(dev, sdata->name, S);
STA_FILE(last_signal, last_signal, D);
STA_FILE(last_ack_signal, last_ack_signal, D);
+STA_FILE(beacon_loss_count, beacon_loss_count, D);
static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
@@ -434,6 +435,7 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
DEBUGFS_ADD(agg_status);
DEBUGFS_ADD(dev);
DEBUGFS_ADD(last_signal);
+ DEBUGFS_ADD(beacon_loss_count);
DEBUGFS_ADD(ht_capa);
DEBUGFS_ADD(vht_capa);
DEBUGFS_ADD(last_ack_signal);
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 539d4a11b47b..170f9a7fa319 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -44,7 +44,6 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
int rates, i;
- struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
u8 *pos;
struct ieee80211_supported_band *sband;
@@ -52,20 +51,14 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
u32 bss_change;
u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
struct cfg80211_chan_def chandef;
+ struct beacon_data *presp;
+ int frame_len;
lockdep_assert_held(&ifibss->mtx);
/* Reset own TSF to allow time synchronization work. */
drv_reset_tsf(local, sdata);
- skb = ifibss->skb;
- RCU_INIT_POINTER(ifibss->presp, NULL);
- synchronize_rcu();
- skb->data = skb->head;
- skb->len = 0;
- skb_reset_tail_pointer(skb);
- skb_reserve(skb, sdata->local->hw.extra_tx_headroom);
-
if (!ether_addr_equal(ifibss->bssid, bssid))
sta_info_flush(sdata);
@@ -73,10 +66,19 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
if (sdata->vif.bss_conf.ibss_joined) {
sdata->vif.bss_conf.ibss_joined = false;
sdata->vif.bss_conf.ibss_creator = false;
+ sdata->vif.bss_conf.enable_beacon = false;
netif_carrier_off(sdata->dev);
- ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_IBSS);
+ ieee80211_bss_info_change_notify(sdata,
+ BSS_CHANGED_IBSS |
+ BSS_CHANGED_BEACON_ENABLED);
}
+ presp = rcu_dereference_protected(ifibss->presp,
+ lockdep_is_held(&ifibss->mtx));
+ rcu_assign_pointer(ifibss->presp, NULL);
+ if (presp)
+ kfree_rcu(presp, rcu_head);
+
sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;
cfg80211_chandef_create(&chandef, chan, ifibss->channel_type);
@@ -98,19 +100,24 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
sband = local->hw.wiphy->bands[chan->band];
- /* build supported rates array */
- pos = supp_rates;
- for (i = 0; i < sband->n_bitrates; i++) {
- int rate = sband->bitrates[i].bitrate;
- u8 basic = 0;
- if (basic_rates & BIT(i))
- basic = 0x80;
- *pos++ = basic | (u8) (rate / 5);
- }
-
/* Build IBSS probe response */
- mgmt = (void *) skb_put(skb, 24 + sizeof(mgmt->u.beacon));
- memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
+ frame_len = 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_operation) +
+ ifibss->ie_len;
+ presp = kzalloc(sizeof(*presp) + frame_len, GFP_KERNEL);
+ if (!presp)
+ return;
+
+ presp->head = (void *)(presp + 1);
+
+ mgmt = (void *) presp->head;
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
IEEE80211_STYPE_PROBE_RESP);
eth_broadcast_addr(mgmt->da);
@@ -120,27 +127,30 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
mgmt->u.beacon.timestamp = cpu_to_le64(tsf);
mgmt->u.beacon.capab_info = cpu_to_le16(capability);
- pos = skb_put(skb, 2 + ifibss->ssid_len);
+ pos = (u8 *)mgmt + offsetof(struct ieee80211_mgmt, u.beacon.variable);
+
*pos++ = WLAN_EID_SSID;
*pos++ = ifibss->ssid_len;
memcpy(pos, ifibss->ssid, ifibss->ssid_len);
+ pos += ifibss->ssid_len;
- rates = sband->n_bitrates;
- if (rates > 8)
- rates = 8;
- pos = skb_put(skb, 2 + rates);
+ rates = min_t(int, 8, sband->n_bitrates);
*pos++ = WLAN_EID_SUPP_RATES;
*pos++ = rates;
- memcpy(pos, supp_rates, rates);
+ for (i = 0; i < rates; i++) {
+ int rate = sband->bitrates[i].bitrate;
+ u8 basic = 0;
+ if (basic_rates & BIT(i))
+ basic = 0x80;
+ *pos++ = basic | (u8) (rate / 5);
+ }
if (sband->band == IEEE80211_BAND_2GHZ) {
- pos = skb_put(skb, 2 + 1);
*pos++ = WLAN_EID_DS_PARAMS;
*pos++ = 1;
*pos++ = ieee80211_frequency_to_channel(chan->center_freq);
}
- pos = skb_put(skb, 2 + 2);
*pos++ = WLAN_EID_IBSS_PARAMS;
*pos++ = 2;
/* FIX: set ATIM window based on scan results */
@@ -148,23 +158,25 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
*pos++ = 0;
if (sband->n_bitrates > 8) {
- rates = sband->n_bitrates - 8;
- pos = skb_put(skb, 2 + rates);
*pos++ = WLAN_EID_EXT_SUPP_RATES;
- *pos++ = rates;
- memcpy(pos, &supp_rates[8], rates);
+ *pos++ = sband->n_bitrates - 8;
+ for (i = 8; i < sband->n_bitrates; i++) {
+ int rate = sband->bitrates[i].bitrate;
+ u8 basic = 0;
+ if (basic_rates & BIT(i))
+ basic = 0x80;
+ *pos++ = basic | (u8) (rate / 5);
+ }
}
- if (ifibss->ie_len)
- memcpy(skb_put(skb, ifibss->ie_len),
- ifibss->ie, ifibss->ie_len);
+ if (ifibss->ie_len) {
+ memcpy(pos, ifibss->ie, ifibss->ie_len);
+ pos += ifibss->ie_len;
+ }
/* add HT capability and information IEs */
if (chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
sband->ht_cap.ht_supported) {
- pos = skb_put(skb, 4 +
- sizeof(struct ieee80211_ht_cap) +
- sizeof(struct ieee80211_ht_operation));
pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap,
sband->ht_cap.cap);
/*
@@ -177,7 +189,6 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
}
if (local->hw.queues >= IEEE80211_NUM_ACS) {
- pos = skb_put(skb, 9);
*pos++ = WLAN_EID_VENDOR_SPECIFIC;
*pos++ = 7; /* len */
*pos++ = 0x00; /* Microsoft OUI 00:50:F2 */
@@ -189,11 +200,17 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
*pos++ = 0; /* U-APSD no in use */
}
- rcu_assign_pointer(ifibss->presp, skb);
+ presp->head_len = pos - presp->head;
+ if (WARN_ON(presp->head_len > frame_len))
+ return;
+
+ rcu_assign_pointer(ifibss->presp, presp);
sdata->vif.bss_conf.enable_beacon = true;
sdata->vif.bss_conf.beacon_int = beacon_int;
sdata->vif.bss_conf.basic_rates = basic_rates;
+ sdata->vif.bss_conf.ssid_len = ifibss->ssid_len;
+ memcpy(sdata->vif.bss_conf.ssid, ifibss->ssid, ifibss->ssid_len);
bss_change = BSS_CHANGED_BEACON_INT;
bss_change |= ieee80211_reset_erp_info(sdata);
bss_change |= BSS_CHANGED_BSSID;
@@ -202,6 +219,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
bss_change |= BSS_CHANGED_BASIC_RATES;
bss_change |= BSS_CHANGED_HT;
bss_change |= BSS_CHANGED_IBSS;
+ bss_change |= BSS_CHANGED_SSID;
/*
* In 5 GHz/802.11a, we can always use short slot time.
@@ -227,7 +245,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
bss = cfg80211_inform_bss_frame(local->hw.wiphy, chan,
- mgmt, skb->len, 0, GFP_KERNEL);
+ mgmt, presp->head_len, 0, GFP_KERNEL);
cfg80211_put_bss(local->hw.wiphy, bss);
netif_carrier_on(sdata->dev);
cfg80211_ibss_joined(sdata->dev, ifibss->bssid, GFP_KERNEL);
@@ -448,7 +466,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
bool rates_updated = false;
- if (elems->ds_params && elems->ds_params_len == 1)
+ if (elems->ds_params)
freq = ieee80211_channel_to_frequency(elems->ds_params[0],
band);
else
@@ -822,8 +840,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
struct ieee80211_local *local = sdata->local;
int tx_last_beacon, len = req->len;
struct sk_buff *skb;
- struct ieee80211_mgmt *resp;
- struct sk_buff *presp;
+ struct beacon_data *presp;
u8 *pos, *end;
lockdep_assert_held(&ifibss->mtx);
@@ -864,13 +881,15 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
}
/* Reply with ProbeResp */
- skb = skb_copy(presp, GFP_KERNEL);
+ skb = dev_alloc_skb(local->tx_headroom + presp->head_len);
if (!skb)
return;
- resp = (struct ieee80211_mgmt *) skb->data;
- memcpy(resp->da, mgmt->sa, ETH_ALEN);
- ibss_dbg(sdata, "Sending ProbeResp to %pM\n", resp->da);
+ skb_reserve(skb, local->tx_headroom);
+ memcpy(skb_put(skb, presp->head_len), presp->head, presp->head_len);
+
+ memcpy(((struct ieee80211_mgmt *) skb->data)->da, mgmt->sa, ETH_ALEN);
+ ibss_dbg(sdata, "Sending ProbeResp to %pM\n", mgmt->sa);
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
ieee80211_tx_skb(sdata, skb);
}
@@ -895,7 +914,7 @@ void ieee80211_rx_mgmt_probe_beacon(struct ieee80211_sub_if_data *sdata,
return;
ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen,
- &elems);
+ false, &elems);
ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems);
}
@@ -1020,23 +1039,8 @@ void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local)
int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
struct cfg80211_ibss_params *params)
{
- struct sk_buff *skb;
u32 changed = 0;
- skb = dev_alloc_skb(sdata->local->hw.extra_tx_headroom +
- 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_operation) +
- params->ie_len);
- if (!skb)
- return -ENOMEM;
-
mutex_lock(&sdata->u.ibss.mtx);
if (params->bssid) {
@@ -1065,7 +1069,6 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
sdata->u.ibss.ie_len = params->ie_len;
}
- sdata->u.ibss.skb = skb;
sdata->u.ibss.state = IEEE80211_IBSS_MLME_SEARCH;
sdata->u.ibss.ibss_join_req = jiffies;
@@ -1101,13 +1104,13 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
{
- struct sk_buff *skb;
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;
mutex_lock(&sdata->u.ibss.mtx);
@@ -1153,17 +1156,18 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
/* remove beacon */
kfree(sdata->u.ibss.ie);
- skb = rcu_dereference_protected(sdata->u.ibss.presp,
- lockdep_is_held(&sdata->u.ibss.mtx));
+ presp = rcu_dereference_protected(ifibss->presp,
+ lockdep_is_held(&sdata->u.ibss.mtx));
RCU_INIT_POINTER(sdata->u.ibss.presp, NULL);
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);
synchronize_rcu();
- kfree_skb(skb);
+ kfree(presp);
skb_queue_purge(&sdata->skb_queue);
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 0b09716d22ad..158e6eb188d3 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -156,6 +156,7 @@ struct ieee80211_tx_data {
struct ieee80211_sub_if_data *sdata;
struct sta_info *sta;
struct ieee80211_key *key;
+ struct ieee80211_tx_rate rate;
unsigned int flags;
};
@@ -443,7 +444,7 @@ struct ieee80211_if_managed {
u8 use_4addr;
- u8 p2p_noa_index;
+ s16 p2p_noa_index;
/* Signal strength from the last Beacon frame in the current BSS. */
int last_beacon_signal;
@@ -509,8 +510,7 @@ struct ieee80211_if_ibss {
unsigned long ibss_join_req;
/* probe response/beacon for IBSS */
- struct sk_buff __rcu *presp;
- struct sk_buff *skb;
+ struct beacon_data __rcu *presp;
spinlock_t incomplete_lock;
struct list_head incomplete_stations;
@@ -741,6 +741,8 @@ struct ieee80211_sub_if_data {
/* bitmap of allowed (non-MCS) rate indexes for rate control */
u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
+
+ bool rc_has_mcs_mask[IEEE80211_NUM_BANDS];
u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
union {
@@ -1021,10 +1023,9 @@ struct ieee80211_local {
enum mac80211_scan_state next_scan_state;
struct delayed_work scan_work;
struct ieee80211_sub_if_data __rcu *scan_sdata;
- struct ieee80211_channel *csa_channel;
+ struct cfg80211_chan_def csa_chandef;
/* For backward compatibility only -- do not use */
- struct ieee80211_channel *_oper_channel;
- enum nl80211_channel_type _oper_channel_type;
+ struct cfg80211_chan_def _oper_chandef;
/* Temporary remain-on-channel for off-channel operations */
struct ieee80211_channel *tmp_channel;
@@ -1160,11 +1161,8 @@ struct ieee802_11_elems {
/* pointers to IEs */
const u8 *ssid;
const u8 *supp_rates;
- const u8 *fh_params;
const u8 *ds_params;
- const u8 *cf_params;
const struct ieee80211_tim_ie *tim;
- const u8 *ibss_params;
const u8 *challenge;
const u8 *rsn;
const u8 *erp_info;
@@ -1184,23 +1182,20 @@ struct ieee802_11_elems {
const u8 *perr;
const struct ieee80211_rann_ie *rann;
const struct ieee80211_channel_sw_ie *ch_switch_ie;
+ const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
+ const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
const u8 *country_elem;
const u8 *pwr_constr_elem;
- const u8 *quiet_elem; /* first quite element */
- const u8 *timeout_int;
+ const struct ieee80211_timeout_interval_ie *timeout_int;
const u8 *opmode_notif;
+ const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
/* length of them, respectively */
u8 ssid_len;
u8 supp_rates_len;
- u8 fh_params_len;
- u8 ds_params_len;
- u8 cf_params_len;
u8 tim_len;
- u8 ibss_params_len;
u8 challenge_len;
u8 rsn_len;
- u8 erp_info_len;
u8 ext_supp_rates_len;
u8 wmm_info_len;
u8 wmm_param_len;
@@ -1210,9 +1205,6 @@ struct ieee802_11_elems {
u8 prep_len;
u8 perr_len;
u8 country_elem_len;
- u8 quiet_elem_len;
- u8 num_of_quiet_elem; /* can be more the one */
- u8 timeout_int_len;
/* whether a parse error occurred while retrieving these elements */
bool parse_error;
@@ -1267,10 +1259,6 @@ void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
int ieee80211_max_network_latency(struct notifier_block *nb,
unsigned long data, void *dummy);
int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
-void
-ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
- const struct ieee80211_channel_sw_ie *sw_elem,
- struct ieee80211_bss *bss, u64 timestamp);
void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb);
@@ -1330,7 +1318,8 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
void ieee80211_offchannel_return(struct ieee80211_local *local);
void ieee80211_roc_setup(struct ieee80211_local *local);
void ieee80211_start_next_roc(struct ieee80211_local *local);
-void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata);
+void ieee80211_roc_purge(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata);
void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free);
void ieee80211_sw_roc_work(struct work_struct *work);
void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
@@ -1351,6 +1340,8 @@ void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
const int offset);
int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
+int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
+void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
@@ -1505,11 +1496,15 @@ static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
ieee80211_tx_skb_tid(sdata, skb, 7);
}
-void ieee802_11_parse_elems(u8 *start, size_t len,
- struct ieee802_11_elems *elems);
-u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
+u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, bool action,
struct ieee802_11_elems *elems,
u64 filter, u32 crc);
+static inline void ieee802_11_parse_elems(u8 *start, size_t len, bool action,
+ struct ieee802_11_elems *elems)
+{
+ ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
+}
+
u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
enum ieee80211_band band);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index e8a260f53c16..60f1ce5e5e52 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1,5 +1,5 @@
/*
- * Interface handling (except master interface)
+ * Interface handling
*
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005-2006, Devicescape Software, Inc.
@@ -357,7 +357,7 @@ static void ieee80211_set_default_queues(struct ieee80211_sub_if_data *sdata)
sdata->vif.cab_queue = IEEE80211_INVAL_HW_QUEUE;
}
-static int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
+int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata;
int ret;
@@ -410,7 +410,7 @@ static int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
return 0;
}
-static void ieee80211_del_virtual_monitor(struct ieee80211_local *local)
+void ieee80211_del_virtual_monitor(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata;
@@ -595,7 +595,8 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
case NL80211_IFTYPE_P2P_DEVICE:
break;
default:
- netif_carrier_on(dev);
+ /* not reached */
+ WARN_ON(1);
}
/*
@@ -652,8 +653,28 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
ieee80211_recalc_ps(local, -1);
- if (dev)
- netif_tx_start_all_queues(dev);
+ if (dev) {
+ unsigned long flags;
+ int n_acs = IEEE80211_NUM_ACS;
+ int ac;
+
+ if (local->hw.queues < IEEE80211_NUM_ACS)
+ n_acs = 1;
+
+ spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+ if (sdata->vif.cab_queue == IEEE80211_INVAL_HW_QUEUE ||
+ (local->queue_stop_reasons[sdata->vif.cab_queue] == 0 &&
+ skb_queue_empty(&local->pending[sdata->vif.cab_queue]))) {
+ for (ac = 0; ac < n_acs; ac++) {
+ int ac_queue = sdata->vif.hw_queue[ac];
+
+ if (local->queue_stop_reasons[ac_queue] == 0 &&
+ skb_queue_empty(&local->pending[ac_queue]))
+ netif_start_subqueue(dev, ac);
+ }
+ }
+ spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+ }
return 0;
err_del_interface:
@@ -707,7 +728,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
if (sdata->dev)
netif_tx_stop_all_queues(sdata->dev);
- ieee80211_roc_purge(sdata);
+ ieee80211_roc_purge(local, sdata);
if (sdata->vif.type == NL80211_IFTYPE_STATION)
ieee80211_mgd_stop(sdata);
@@ -732,12 +753,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
WARN_ON_ONCE((sdata->vif.type != NL80211_IFTYPE_WDS && flushed > 0) ||
(sdata->vif.type == NL80211_IFTYPE_WDS && flushed != 1));
- /*
- * Don't count this interface for promisc/allmulti while it
- * is down. dev_mc_unsync() will invoke set_multicast_list
- * on the master interface which will sync these down to the
- * hardware as filter flags.
- */
+ /* don't count this interface for promisc/allmulti while it is down */
if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
atomic_dec(&local->iff_allmultis);
@@ -758,8 +774,6 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
sdata->dev->addr_len);
spin_unlock_bh(&local->filter_lock);
netif_addr_unlock_bh(sdata->dev);
-
- ieee80211_configure_filter(local);
}
del_timer_sync(&local->dynamic_ps_timer);
@@ -770,6 +784,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
if (sdata->wdev.cac_started) {
+ WARN_ON(local->suspended);
mutex_lock(&local->iflist_mtx);
ieee80211_vif_release_channel(sdata);
mutex_unlock(&local->iflist_mtx);
@@ -820,14 +835,9 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
if (local->monitors == 0) {
local->hw.conf.flags &= ~IEEE80211_CONF_MONITOR;
hw_reconf_flags |= IEEE80211_CONF_CHANGE_MONITOR;
- ieee80211_del_virtual_monitor(local);
}
ieee80211_adjust_monitor_flags(sdata, -1);
- ieee80211_configure_filter(local);
- mutex_lock(&local->mtx);
- ieee80211_recalc_idle(local);
- mutex_unlock(&local->mtx);
break;
case NL80211_IFTYPE_P2P_DEVICE:
/* relies on synchronize_rcu() below */
@@ -840,11 +850,12 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
*
* sta_info_flush_cleanup() requires rcu_barrier()
* first to wait for the station call_rcu() calls
- * to complete, here we need at least sychronize_rcu()
- * it to wait for the RX path in case it is using the
+ * to complete, and we also need synchronize_rcu()
+ * to wait for the RX path in case it is using the
* interface and enqueuing frames at this very time on
* another CPU.
*/
+ synchronize_rcu();
rcu_barrier();
sta_info_flush_cleanup(sdata);
@@ -857,27 +868,10 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
/* fall through */
case NL80211_IFTYPE_AP:
skb_queue_purge(&sdata->skb_queue);
-
- if (going_down)
- drv_remove_interface(local, sdata);
}
sdata->bss = NULL;
- ieee80211_recalc_ps(local, -1);
-
- if (local->open_count == 0) {
- ieee80211_clear_tx_pending(local);
- ieee80211_stop_device(local);
-
- /* no reconfiguring after stop! */
- hw_reconf_flags = 0;
- }
-
- /* do after stop to avoid reconfiguring when we stop anyway */
- if (hw_reconf_flags)
- ieee80211_hw_config(local, hw_reconf_flags);
-
spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
for (i = 0; i < IEEE80211_MAX_QUEUES; i++) {
skb_queue_walk_safe(&local->pending[i], skb, tmp) {
@@ -890,7 +884,54 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
}
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
- if (local->monitors == local->open_count && local->monitors > 0)
+ if (local->open_count == 0)
+ ieee80211_clear_tx_pending(local);
+
+ /*
+ * If the interface goes down while suspended, presumably because
+ * the device was unplugged and that happens before our resume,
+ * then the driver is already unconfigured and the remainder of
+ * this function isn't needed.
+ * XXX: what about WoWLAN? If the device has software state, e.g.
+ * memory allocated, it might expect teardown commands from
+ * mac80211 here?
+ */
+ if (local->suspended) {
+ WARN_ON(local->wowlan);
+ WARN_ON(rtnl_dereference(local->monitor_sdata));
+ return;
+ }
+
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_AP_VLAN:
+ break;
+ case NL80211_IFTYPE_MONITOR:
+ if (local->monitors == 0)
+ ieee80211_del_virtual_monitor(local);
+
+ mutex_lock(&local->mtx);
+ ieee80211_recalc_idle(local);
+ mutex_unlock(&local->mtx);
+ break;
+ default:
+ if (going_down)
+ drv_remove_interface(local, sdata);
+ }
+
+ ieee80211_recalc_ps(local, -1);
+
+ if (local->open_count == 0) {
+ ieee80211_stop_device(local);
+
+ /* no reconfiguring after stop! */
+ return;
+ }
+
+ /* do after stop to avoid reconfiguring when we stop anyway */
+ ieee80211_configure_filter(local);
+ ieee80211_hw_config(local, hw_reconf_flags);
+
+ if (local->monitors == local->open_count)
ieee80211_add_virtual_monitor(local);
}
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index c6f81ecc36a1..8a7bfc47d577 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -95,42 +95,47 @@ static void ieee80211_reconfig_filter(struct work_struct *work)
static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata;
- struct ieee80211_channel *chan;
+ struct cfg80211_chan_def chandef = {};
u32 changed = 0;
int power;
- enum nl80211_channel_type channel_type;
u32 offchannel_flag;
offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL;
+
if (local->scan_channel) {
- chan = local->scan_channel;
+ chandef.chan = local->scan_channel;
/* If scanning on oper channel, use whatever channel-type
* is currently in use.
*/
- if (chan == local->_oper_channel)
- channel_type = local->_oper_channel_type;
- else
- channel_type = NL80211_CHAN_NO_HT;
+ if (chandef.chan == local->_oper_chandef.chan) {
+ chandef = local->_oper_chandef;
+ } else {
+ chandef.width = NL80211_CHAN_WIDTH_20_NOHT;
+ chandef.center_freq1 = chandef.chan->center_freq;
+ }
} else if (local->tmp_channel) {
- chan = local->tmp_channel;
- channel_type = NL80211_CHAN_NO_HT;
- } else {
- chan = local->_oper_channel;
- channel_type = local->_oper_channel_type;
- }
-
- if (chan != local->_oper_channel ||
- channel_type != local->_oper_channel_type)
+ chandef.chan = local->tmp_channel;
+ chandef.width = NL80211_CHAN_WIDTH_20_NOHT;
+ chandef.center_freq1 = chandef.chan->center_freq;
+ } else
+ chandef = local->_oper_chandef;
+
+ WARN(!cfg80211_chandef_valid(&chandef),
+ "control:%d MHz width:%d center: %d/%d MHz",
+ chandef.chan->center_freq, chandef.width,
+ chandef.center_freq1, chandef.center_freq2);
+
+ if (!cfg80211_chandef_identical(&chandef, &local->_oper_chandef))
local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL;
else
local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL;
offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL;
- if (offchannel_flag || chan != local->hw.conf.channel ||
- channel_type != local->hw.conf.channel_type) {
- local->hw.conf.channel = chan;
- local->hw.conf.channel_type = channel_type;
+ if (offchannel_flag ||
+ !cfg80211_chandef_identical(&local->hw.conf.chandef,
+ &local->_oper_chandef)) {
+ local->hw.conf.chandef = chandef;
changed |= IEEE80211_CONF_CHANGE_CHANNEL;
}
@@ -146,7 +151,7 @@ static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local)
changed |= IEEE80211_CONF_CHANGE_SMPS;
}
- power = chan->max_power;
+ power = chandef.chan->max_power;
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
@@ -587,6 +592,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
IEEE80211_RADIOTAP_MCS_HAVE_BW;
local->hw.radiotap_vht_details = IEEE80211_RADIOTAP_VHT_KNOWN_GI |
IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH;
+ local->hw.uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES;
+ local->hw.uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN;
local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask;
wiphy->vht_capa_mod_mask = &mac80211_vht_capa_mod_mask;
@@ -661,6 +668,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
int channels, max_bitrates;
bool supp_ht, supp_vht;
netdev_features_t feature_whitelist;
+ struct cfg80211_chan_def dflt_chandef = {};
static const u32 cipher_suites[] = {
/* keep WEP first, it may be removed below */
WLAN_CIPHER_SUITE_WEP40,
@@ -738,15 +746,19 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
sband = local->hw.wiphy->bands[band];
if (!sband)
continue;
- if (!local->use_chanctx && !local->_oper_channel) {
+
+ if (!dflt_chandef.chan) {
+ cfg80211_chandef_create(&dflt_chandef,
+ &sband->channels[0],
+ NL80211_CHAN_NO_HT);
/* init channel we're on */
- local->hw.conf.channel =
- local->_oper_channel = &sband->channels[0];
- local->hw.conf.channel_type = NL80211_CHAN_NO_HT;
+ if (!local->use_chanctx && !local->_oper_chandef.chan) {
+ local->hw.conf.chandef = dflt_chandef;
+ local->_oper_chandef = dflt_chandef;
+ }
+ local->monitor_chandef = dflt_chandef;
}
- cfg80211_chandef_create(&local->monitor_chandef,
- &sband->channels[0],
- NL80211_CHAN_NO_HT);
+
channels += sband->n_channels;
if (max_bitrates < sband->n_bitrates)
@@ -829,22 +841,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
if (supp_ht)
local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap);
- if (supp_vht) {
+ if (supp_vht)
local->scan_ies_len +=
2 + sizeof(struct ieee80211_vht_cap);
- /*
- * (for now at least), drivers wanting to use VHT must
- * support channel contexts, as they contain all the
- * necessary VHT information and the global hw config
- * doesn't (yet)
- */
- if (WARN_ON(!local->use_chanctx)) {
- result = -EINVAL;
- goto fail_wiphy_register;
- }
- }
-
if (!local->ops->hw_scan) {
/* For hw_scan, driver needs to set these up. */
local->hw.wiphy->max_scan_ssids = 4;
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 123a300cef57..6952760881c8 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -838,7 +838,7 @@ ieee80211_mesh_rx_probe_req(struct ieee80211_sub_if_data *sdata,
if (baselen > len)
return;
- ieee802_11_parse_elems(pos, len - baselen, &elems);
+ ieee802_11_parse_elems(pos, len - baselen, false, &elems);
/* 802.11-2012 10.1.4.3.2 */
if ((!ether_addr_equal(mgmt->da, sdata->vif.addr) &&
@@ -899,7 +899,7 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
return;
ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen,
- &elems);
+ false, &elems);
/* ignore non-mesh or secure / unsecure mismatch */
if ((!elems.mesh_id || !elems.mesh_config) ||
@@ -907,7 +907,7 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
(!elems.rsn && sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE))
return;
- if (elems.ds_params && elems.ds_params_len == 1)
+ if (elems.ds_params)
freq = ieee80211_channel_to_frequency(elems.ds_params[0], band);
else
freq = rx_status->freq;
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index 6ffabbe99c46..da158774eebb 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -275,7 +275,8 @@ void mesh_path_fix_nexthop(struct mesh_path *mpath, struct sta_info *next_hop);
void mesh_path_expire(struct ieee80211_sub_if_data *sdata);
void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt, size_t len);
-int mesh_path_add(struct ieee80211_sub_if_data *sdata, const u8 *dst);
+struct mesh_path *
+mesh_path_add(struct ieee80211_sub_if_data *sdata, const u8 *dst);
int mesh_path_add_gate(struct mesh_path *mpath);
int mesh_path_send_to_gates(struct mesh_path *mpath);
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index bdb8d3b14587..486819cd02cd 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -144,7 +144,7 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
*pos++ = WLAN_EID_PREQ;
break;
case MPATH_PREP:
- mhwmp_dbg(sdata, "sending PREP to %pM\n", target);
+ mhwmp_dbg(sdata, "sending PREP to %pM\n", orig_addr);
ie_len = 31;
pos = skb_put(skb, 2 + ie_len);
*pos++ = WLAN_EID_PREP;
@@ -445,9 +445,8 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,
}
}
} else {
- mesh_path_add(sdata, orig_addr);
- mpath = mesh_path_lookup(sdata, orig_addr);
- if (!mpath) {
+ mpath = mesh_path_add(sdata, orig_addr);
+ if (IS_ERR(mpath)) {
rcu_read_unlock();
return 0;
}
@@ -486,9 +485,8 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata,
(last_hop_metric > mpath->metric)))
fresh_info = false;
} else {
- mesh_path_add(sdata, ta);
- mpath = mesh_path_lookup(sdata, ta);
- if (!mpath) {
+ mpath = mesh_path_add(sdata, ta);
+ if (IS_ERR(mpath)) {
rcu_read_unlock();
return 0;
}
@@ -661,7 +659,7 @@ static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata,
u32 target_sn, orig_sn, lifetime;
mhwmp_dbg(sdata, "received PREP from %pM\n",
- PREP_IE_ORIG_ADDR(prep_elem));
+ PREP_IE_TARGET_ADDR(prep_elem));
orig_addr = PREP_IE_ORIG_ADDR(prep_elem);
if (ether_addr_equal(orig_addr, sdata->vif.addr))
@@ -804,9 +802,8 @@ static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata,
mpath = mesh_path_lookup(sdata, orig_addr);
if (!mpath) {
- mesh_path_add(sdata, orig_addr);
- mpath = mesh_path_lookup(sdata, orig_addr);
- if (!mpath) {
+ mpath = mesh_path_add(sdata, orig_addr);
+ if (IS_ERR(mpath)) {
rcu_read_unlock();
sdata->u.mesh.mshstats.dropped_frames_no_route++;
return;
@@ -883,7 +880,7 @@ void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
baselen = (u8 *) mgmt->u.action.u.mesh_action.variable - (u8 *) mgmt;
ieee802_11_parse_elems(mgmt->u.action.u.mesh_action.variable,
- len - baselen, &elems);
+ len - baselen, false, &elems);
if (elems.preq) {
if (elems.preq_len != 37)
@@ -1098,11 +1095,10 @@ int mesh_nexthop_resolve(struct ieee80211_sub_if_data *sdata,
/* no nexthop found, start resolving */
mpath = mesh_path_lookup(sdata, target_addr);
if (!mpath) {
- mesh_path_add(sdata, target_addr);
- mpath = mesh_path_lookup(sdata, target_addr);
- if (!mpath) {
+ mpath = mesh_path_add(sdata, target_addr);
+ if (IS_ERR(mpath)) {
mesh_path_discard_frame(sdata, skb);
- err = -ENOSPC;
+ err = PTR_ERR(mpath);
goto endlookup;
}
}
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index dc7c8df40c2c..89aacfd2756d 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -493,7 +493,8 @@ int mesh_gate_num(struct ieee80211_sub_if_data *sdata)
*
* State: the initial state of the new path is set to 0
*/
-int mesh_path_add(struct ieee80211_sub_if_data *sdata, const u8 *dst)
+struct mesh_path *mesh_path_add(struct ieee80211_sub_if_data *sdata,
+ const u8 *dst)
{
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
struct ieee80211_local *local = sdata->local;
@@ -502,18 +503,33 @@ int mesh_path_add(struct ieee80211_sub_if_data *sdata, const u8 *dst)
struct mpath_node *node, *new_node;
struct hlist_head *bucket;
int grow = 0;
- int err = 0;
+ int err;
u32 hash_idx;
if (ether_addr_equal(dst, sdata->vif.addr))
/* never add ourselves as neighbours */
- return -ENOTSUPP;
+ return ERR_PTR(-ENOTSUPP);
if (is_multicast_ether_addr(dst))
- return -ENOTSUPP;
+ return ERR_PTR(-ENOTSUPP);
if (atomic_add_unless(&sdata->u.mesh.mpaths, 1, MESH_MAX_MPATHS) == 0)
- return -ENOSPC;
+ return ERR_PTR(-ENOSPC);
+
+ read_lock_bh(&pathtbl_resize_lock);
+ tbl = resize_dereference_mesh_paths();
+
+ hash_idx = mesh_table_hash(dst, sdata, tbl);
+ bucket = &tbl->hash_buckets[hash_idx];
+
+ spin_lock(&tbl->hashwlock[hash_idx]);
+
+ hlist_for_each_entry(node, bucket, list) {
+ mpath = node->mpath;
+ if (mpath->sdata == sdata &&
+ ether_addr_equal(dst, mpath->dst))
+ goto found;
+ }
err = -ENOMEM;
new_mpath = kzalloc(sizeof(struct mesh_path), GFP_ATOMIC);
@@ -524,7 +540,6 @@ int mesh_path_add(struct ieee80211_sub_if_data *sdata, const u8 *dst)
if (!new_node)
goto err_node_alloc;
- read_lock_bh(&pathtbl_resize_lock);
memcpy(new_mpath->dst, dst, ETH_ALEN);
eth_broadcast_addr(new_mpath->rann_snd_addr);
new_mpath->is_root = false;
@@ -538,21 +553,6 @@ int mesh_path_add(struct ieee80211_sub_if_data *sdata, const u8 *dst)
spin_lock_init(&new_mpath->state_lock);
init_timer(&new_mpath->timer);
- tbl = resize_dereference_mesh_paths();
-
- hash_idx = mesh_table_hash(dst, sdata, tbl);
- bucket = &tbl->hash_buckets[hash_idx];
-
- spin_lock(&tbl->hashwlock[hash_idx]);
-
- err = -EEXIST;
- hlist_for_each_entry(node, bucket, list) {
- mpath = node->mpath;
- if (mpath->sdata == sdata &&
- ether_addr_equal(dst, mpath->dst))
- goto err_exists;
- }
-
hlist_add_head_rcu(&new_node->list, bucket);
if (atomic_inc_return(&tbl->entries) >=
tbl->mean_chain_len * (tbl->hash_mask + 1))
@@ -560,23 +560,23 @@ int mesh_path_add(struct ieee80211_sub_if_data *sdata, const u8 *dst)
mesh_paths_generation++;
- spin_unlock(&tbl->hashwlock[hash_idx]);
- read_unlock_bh(&pathtbl_resize_lock);
if (grow) {
set_bit(MESH_WORK_GROW_MPATH_TABLE, &ifmsh->wrkq_flags);
ieee80211_queue_work(&local->hw, &sdata->work);
}
- return 0;
-
-err_exists:
+ mpath = new_mpath;
+found:
spin_unlock(&tbl->hashwlock[hash_idx]);
read_unlock_bh(&pathtbl_resize_lock);
- kfree(new_node);
+ return mpath;
+
err_node_alloc:
kfree(new_mpath);
err_path_alloc:
atomic_dec(&sdata->u.mesh.mpaths);
- return err;
+ spin_unlock(&tbl->hashwlock[hash_idx]);
+ read_unlock_bh(&pathtbl_resize_lock);
+ return ERR_PTR(err);
}
static void mesh_table_free_rcu(struct rcu_head *rcu)
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 937e06fe8f2a..09bebed99416 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -544,8 +544,8 @@ static void mesh_plink_timer(unsigned long data)
return;
}
mpl_dbg(sta->sdata,
- "Mesh plink timer for %pM fired on state %d\n",
- sta->sta.addr, sta->plink_state);
+ "Mesh plink timer for %pM fired on state %s\n",
+ sta->sta.addr, mplstates[sta->plink_state]);
reason = 0;
llid = sta->llid;
plid = sta->plid;
@@ -687,7 +687,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
baseaddr += 4;
baselen += 4;
}
- ieee802_11_parse_elems(baseaddr, len - baselen, &elems);
+ ieee802_11_parse_elems(baseaddr, len - baselen, true, &elems);
if (!elems.peering) {
mpl_dbg(sdata,
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index dec42ab1fa91..29620bfc7a69 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -56,7 +56,10 @@ MODULE_PARM_DESC(max_probe_tries,
* probe on beacon miss before declaring the connection lost
* default to what we want.
*/
-#define IEEE80211_BEACON_LOSS_COUNT 7
+static int beacon_loss_count = 7;
+module_param(beacon_loss_count, int, 0644);
+MODULE_PARM_DESC(beacon_loss_count,
+ "Number of beacon intervals before we decide beacon was lost.");
/*
* Time the connection can be idle before we probe
@@ -286,6 +289,8 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
} else {
/* 40 MHz (and 80 MHz) must be supported for VHT */
ret = IEEE80211_STA_DISABLE_VHT;
+ /* also mark 40 MHz disabled */
+ ret |= IEEE80211_STA_DISABLE_40MHZ;
goto out;
}
@@ -300,12 +305,6 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
channel->band);
vht_chandef.center_freq2 = 0;
- if (vht_oper->center_freq_seg2_idx)
- vht_chandef.center_freq2 =
- ieee80211_channel_to_frequency(
- vht_oper->center_freq_seg2_idx,
- channel->band);
-
switch (vht_oper->chan_width) {
case IEEE80211_VHT_CHANWIDTH_USE_HT:
vht_chandef.width = chandef->width;
@@ -318,6 +317,10 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
break;
case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
vht_chandef.width = NL80211_CHAN_WIDTH_80P80;
+ vht_chandef.center_freq2 =
+ ieee80211_channel_to_frequency(
+ vht_oper->center_freq_seg2_idx,
+ channel->band);
break;
default:
if (verbose)
@@ -601,7 +604,6 @@ static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata,
u8 *pos;
u32 cap;
struct ieee80211_sta_vht_cap vht_cap;
- int i;
BUILD_BUG_ON(sizeof(vht_cap) != sizeof(sband->vht_cap));
@@ -629,37 +631,6 @@ static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata,
cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)))
cap &= ~IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE;
- if (!(ap_vht_cap->vht_cap_info &
- cpu_to_le32(IEEE80211_VHT_CAP_TXSTBC)))
- cap &= ~(IEEE80211_VHT_CAP_RXSTBC_1 |
- IEEE80211_VHT_CAP_RXSTBC_3 |
- IEEE80211_VHT_CAP_RXSTBC_4);
-
- for (i = 0; i < 8; i++) {
- int shift = i * 2;
- u16 mask = IEEE80211_VHT_MCS_NOT_SUPPORTED << shift;
- u16 ap_mcs, our_mcs;
-
- ap_mcs = (le16_to_cpu(ap_vht_cap->supp_mcs.tx_mcs_map) &
- mask) >> shift;
- our_mcs = (le16_to_cpu(vht_cap.vht_mcs.rx_mcs_map) &
- mask) >> shift;
-
- if (our_mcs == IEEE80211_VHT_MCS_NOT_SUPPORTED)
- continue;
-
- switch (ap_mcs) {
- default:
- if (our_mcs <= ap_mcs)
- break;
- /* fall through */
- case IEEE80211_VHT_MCS_NOT_SUPPORTED:
- vht_cap.vht_mcs.rx_mcs_map &= cpu_to_le16(~mask);
- vht_cap.vht_mcs.rx_mcs_map |=
- cpu_to_le16(ap_mcs << shift);
- }
- }
-
/* reserve and fill IE */
pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2);
ieee80211_ie_build_vht_cap(pos, &vht_cap, cap);
@@ -985,6 +956,7 @@ static void ieee80211_chswitch_work(struct work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
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;
if (!ieee80211_sdata_running(sdata))
@@ -994,21 +966,21 @@ static void ieee80211_chswitch_work(struct work_struct *work)
if (!ifmgd->associated)
goto out;
- sdata->local->_oper_channel = sdata->local->csa_channel;
- if (!sdata->local->ops->channel_switch) {
+ local->_oper_chandef = local->csa_chandef;
+
+ if (!local->ops->channel_switch) {
/* call "hw_config" only if doing sw channel switch */
- ieee80211_hw_config(sdata->local,
- IEEE80211_CONF_CHANGE_CHANNEL);
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
} else {
/* update the device channel directly */
- sdata->local->hw.conf.channel = sdata->local->_oper_channel;
+ local->hw.conf.chandef = local->_oper_chandef;
}
/* XXX: shouldn't really modify cfg80211-owned data! */
- ifmgd->associated->channel = sdata->local->_oper_channel;
+ ifmgd->associated->channel = local->_oper_chandef.chan;
/* XXX: wait for a beacon first? */
- ieee80211_wake_queues_by_reason(&sdata->local->hw,
+ ieee80211_wake_queues_by_reason(&local->hw,
IEEE80211_MAX_QUEUE_MAP,
IEEE80211_QUEUE_STOP_REASON_CSA);
out:
@@ -1041,56 +1013,193 @@ static void ieee80211_chswitch_timer(unsigned long data)
ieee80211_queue_work(&sdata->local->hw, &sdata->u.mgd.chswitch_work);
}
-void
+static void
ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
- const struct ieee80211_channel_sw_ie *sw_elem,
- struct ieee80211_bss *bss, u64 timestamp)
+ u64 timestamp, struct ieee802_11_elems *elems)
{
- struct cfg80211_bss *cbss =
- container_of((void *)bss, struct cfg80211_bss, priv);
- struct ieee80211_channel *new_ch;
+ struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num,
- cbss->channel->band);
+ 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;
+ 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;
+ int secondary_channel_offset = -1;
ASSERT_MGD_MTX(ifmgd);
- if (!ifmgd->associated)
+ if (!cbss)
return;
- if (sdata->local->scanning)
+ if (local->scanning)
return;
- /* Disregard subsequent beacons if we are already running a timer
- processing a CSA */
-
+ /* disregard subsequent announcements if we are already processing */
if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
return;
- new_ch = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
- if (!new_ch || new_ch->flags & IEEE80211_CHAN_DISABLED) {
+ sec_chan_offs = elems->sec_chan_offs;
+ wide_bw_chansw_ie = elems->wide_bw_chansw_ie;
+
+ if (ifmgd->flags & (IEEE80211_STA_DISABLE_HT |
+ IEEE80211_STA_DISABLE_40MHZ)) {
+ sec_chan_offs = NULL;
+ wide_bw_chansw_ie = 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);
- ieee80211_queue_work(&sdata->local->hw,
+ ieee80211_queue_work(&local->hw,
+ &ifmgd->csa_connection_drop_work);
+ return;
+ }
+
+ if (sec_chan_offs) {
+ secondary_channel_offset = sec_chan_offs->sec_chan_offs;
+ } else if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) {
+ /* if HT is enabled and the IE not present, it's still HT */
+ 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);
+ 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,
+ new_chandef.width, new_chandef.center_freq1,
+ new_chandef.center_freq2);
+ ieee80211_queue_work(&local->hw,
&ifmgd->csa_connection_drop_work);
return;
}
ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
- if (sdata->local->use_chanctx) {
+ if (local->use_chanctx) {
sdata_info(sdata,
"not handling channel switch with channel contexts\n");
- ieee80211_queue_work(&sdata->local->hw,
+ ieee80211_queue_work(&local->hw,
&ifmgd->csa_connection_drop_work);
return;
}
- mutex_lock(&sdata->local->chanctx_mtx);
+ mutex_lock(&local->chanctx_mtx);
if (WARN_ON(!rcu_access_pointer(sdata->vif.chanctx_conf))) {
- mutex_unlock(&sdata->local->chanctx_mtx);
+ mutex_unlock(&local->chanctx_mtx);
return;
}
chanctx = container_of(rcu_access_pointer(sdata->vif.chanctx_conf),
@@ -1098,40 +1207,39 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
if (chanctx->refcount > 1) {
sdata_info(sdata,
"channel switch with multiple interfaces on the same channel, disconnecting\n");
- ieee80211_queue_work(&sdata->local->hw,
+ ieee80211_queue_work(&local->hw,
&ifmgd->csa_connection_drop_work);
- mutex_unlock(&sdata->local->chanctx_mtx);
+ mutex_unlock(&local->chanctx_mtx);
return;
}
- mutex_unlock(&sdata->local->chanctx_mtx);
+ mutex_unlock(&local->chanctx_mtx);
- sdata->local->csa_channel = new_ch;
+ local->csa_chandef = new_chandef;
- if (sw_elem->mode)
- ieee80211_stop_queues_by_reason(&sdata->local->hw,
+ if (mode)
+ ieee80211_stop_queues_by_reason(&local->hw,
IEEE80211_MAX_QUEUE_MAP,
IEEE80211_QUEUE_STOP_REASON_CSA);
- if (sdata->local->ops->channel_switch) {
+ if (local->ops->channel_switch) {
/* use driver's channel switch callback */
struct ieee80211_channel_switch ch_switch = {
.timestamp = timestamp,
- .block_tx = sw_elem->mode,
- .channel = new_ch,
- .count = sw_elem->count,
+ .block_tx = mode,
+ .chandef = new_chandef,
+ .count = count,
};
- drv_channel_switch(sdata->local, &ch_switch);
+ drv_channel_switch(local, &ch_switch);
return;
}
/* channel switch handled in software */
- if (sw_elem->count <= 1)
- ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work);
+ if (count <= 1)
+ ieee80211_queue_work(&local->hw, &ifmgd->chswitch_work);
else
mod_timer(&ifmgd->chswitch_timer,
- TU_TO_EXP_TIME(sw_elem->count *
- cbss->beacon_interval));
+ TU_TO_EXP_TIME(count * cbss->beacon_interval));
}
static u32 ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
@@ -1430,13 +1538,11 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) &&
!(ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED)) {
- netif_tx_stop_all_queues(sdata->dev);
-
- if (drv_tx_frames_pending(local))
+ if (drv_tx_frames_pending(local)) {
mod_timer(&local->dynamic_ps_timer, jiffies +
msecs_to_jiffies(
local->hw.conf.dynamic_ps_timeout));
- else {
+ } else {
ieee80211_send_nullfunc(local, sdata, 1);
/* Flush to get the tx status of nullfunc frame */
ieee80211_flush_queues(local, sdata);
@@ -1450,9 +1556,6 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
local->hw.conf.flags |= IEEE80211_CONF_PS;
ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
}
-
- if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
- netif_tx_wake_all_queues(sdata->dev);
}
void ieee80211_dynamic_ps_timer(unsigned long data)
@@ -1558,6 +1661,7 @@ static bool ieee80211_sta_wmm_params(struct ieee80211_local *local,
params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4);
params.cw_min = ecw2cw(pos[1] & 0x0f);
params.txop = get_unaligned_le16(pos + 2);
+ params.acm = acm;
params.uapsd = uapsd;
mlme_dbg(sdata,
@@ -1645,7 +1749,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
bss_conf->assoc_capability, bss->has_erp_value, bss->erp_value);
sdata->u.mgd.beacon_timeout = usecs_to_jiffies(ieee80211_tu_to_usec(
- IEEE80211_BEACON_LOSS_COUNT * bss_conf->beacon_int));
+ beacon_loss_count * bss_conf->beacon_int));
sdata->u.mgd.associated = cbss;
memcpy(sdata->u.mgd.bssid, cbss->bssid, ETH_ALEN);
@@ -1658,18 +1762,17 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
rcu_read_lock();
ies = rcu_dereference(cbss->ies);
if (ies) {
- u8 noa[2];
int ret;
ret = cfg80211_get_p2p_attr(
ies->data, ies->len,
IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
- noa, sizeof(noa));
+ (u8 *) &bss_conf->p2p_noa_attr,
+ sizeof(bss_conf->p2p_noa_attr));
if (ret >= 2) {
- bss_conf->p2p_oppps = noa[1] & 0x80;
- bss_conf->p2p_ctwindow = noa[1] & 0x7f;
+ sdata->u.mgd.p2p_noa_index =
+ bss_conf->p2p_noa_attr.index;
bss_info_changed |= BSS_CHANGED_P2P_PS;
- sdata->u.mgd.p2p_noa_index = noa[0];
}
}
rcu_read_unlock();
@@ -1713,7 +1816,6 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
ieee80211_recalc_smps(sdata);
ieee80211_recalc_ps_vif(sdata);
- netif_tx_start_all_queues(sdata->dev);
netif_carrier_on(sdata->dev);
}
@@ -1736,22 +1838,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
ieee80211_stop_poll(sdata);
ifmgd->associated = NULL;
-
- /*
- * we need to commit the associated = NULL change because the
- * scan code uses that to determine whether this iface should
- * go to/wake up from powersave or not -- and could otherwise
- * wake the queues erroneously.
- */
- smp_mb();
-
- /*
- * Thus, we can only afterwards stop the queues -- to account
- * for the case where another CPU is finishing a scan at this
- * time -- we don't want the scan code to enable queues.
- */
-
- netif_tx_stop_all_queues(sdata->dev);
netif_carrier_off(sdata->dev);
/*
@@ -1794,8 +1880,9 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
changed |= BSS_CHANGED_ASSOC;
sdata->vif.bss_conf.assoc = false;
- sdata->vif.bss_conf.p2p_ctwindow = 0;
- sdata->vif.bss_conf.p2p_oppps = false;
+ ifmgd->p2p_noa_index = -1;
+ memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
+ sizeof(sdata->vif.bss_conf.p2p_noa_attr));
/* on the next assoc, re-program HT/VHT parameters */
memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa));
@@ -1975,12 +2062,15 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata,
goto out;
}
- if (beacon)
+ if (beacon) {
mlme_dbg_ratelimited(sdata,
- "detected beacon loss from AP - probing\n");
+ "detected beacon loss from AP (missed %d beacons) - probing\n",
+ beacon_loss_count);
- ieee80211_cqm_rssi_notify(&sdata->vif,
- NL80211_CQM_RSSI_BEACON_LOSS_EVENT, GFP_KERNEL);
+ ieee80211_cqm_rssi_notify(&sdata->vif,
+ NL80211_CQM_RSSI_BEACON_LOSS_EVENT,
+ GFP_KERNEL);
+ }
/*
* The driver/our work has already reported this event or the
@@ -2126,7 +2216,6 @@ void ieee80211_beacon_loss(struct ieee80211_vif *vif)
trace_api_beacon_loss(sdata);
- WARN_ON(hw->flags & IEEE80211_HW_CONNECTION_MONITOR);
sdata->u.mgd.connection_loss = false;
ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work);
}
@@ -2176,7 +2265,7 @@ static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata,
u32 tx_flags = 0;
pos = mgmt->u.auth.variable;
- ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
+ ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), false, &elems);
if (!elems.challenge)
return;
auth_data->expected_transaction = 4;
@@ -2441,7 +2530,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
}
pos = mgmt->u.assoc_resp.variable;
- ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
+ ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), false, &elems);
if (!elems.supp_rates) {
sdata_info(sdata, "no SuppRates element in AssocResp\n");
@@ -2610,13 +2699,13 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14))));
pos = mgmt->u.assoc_resp.variable;
- ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
+ ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), false, &elems);
if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY &&
- elems.timeout_int && elems.timeout_int_len == 5 &&
- elems.timeout_int[0] == WLAN_TIMEOUT_ASSOC_COMEBACK) {
+ elems.timeout_int &&
+ elems.timeout_int->type == WLAN_TIMEOUT_ASSOC_COMEBACK) {
u32 tu, ms;
- tu = get_unaligned_le32(elems.timeout_int + 1);
+ tu = le32_to_cpu(elems.timeout_int->value);
ms = tu * 1024 / 1000;
sdata_info(sdata,
"%pM rejected association temporarily; comeback duration %u TU (%u ms)\n",
@@ -2665,6 +2754,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
struct ieee80211_channel *channel;
bool need_ps = false;
+ lockdep_assert_held(&sdata->u.mgd.mtx);
+
if ((sdata->u.mgd.associated &&
ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid)) ||
(sdata->u.mgd.assoc_data &&
@@ -2679,7 +2770,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
}
}
- if (elems->ds_params && elems->ds_params_len == 1)
+ if (elems->ds_params)
freq = ieee80211_channel_to_frequency(elems->ds_params[0],
rx_status->band);
else
@@ -2695,7 +2786,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
if (bss)
ieee80211_rx_bss_put(local, bss);
- if (!sdata->u.mgd.associated)
+ if (!sdata->u.mgd.associated ||
+ !ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid))
return;
if (need_ps) {
@@ -2704,10 +2796,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
mutex_unlock(&local->iflist_mtx);
}
- if (elems->ch_switch_ie &&
- memcmp(mgmt->bssid, sdata->u.mgd.associated->bssid, ETH_ALEN) == 0)
- ieee80211_sta_process_chanswitch(sdata, elems->ch_switch_ie,
- bss, rx_status->mactime);
+ ieee80211_sta_process_chanswitch(sdata, rx_status->mactime, elems);
+
}
@@ -2732,7 +2822,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
return;
ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen,
- &elems);
+ false, &elems);
ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems);
@@ -2815,7 +2905,7 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
if (ifmgd->assoc_data && ifmgd->assoc_data->need_beacon &&
ether_addr_equal(mgmt->bssid, ifmgd->assoc_data->bss->bssid)) {
ieee802_11_parse_elems(mgmt->u.beacon.variable,
- len - baselen, &elems);
+ len - baselen, false, &elems);
ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems);
ifmgd->assoc_data->have_beacon = true;
@@ -2925,7 +3015,7 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
ncrc = crc32_be(0, (void *)&mgmt->u.beacon.beacon_int, 4);
ncrc = ieee802_11_parse_elems_crc(mgmt->u.beacon.variable,
- len - baselen, &elems,
+ len - baselen, false, &elems,
care_about_ies, ncrc);
if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) {
@@ -2957,22 +3047,30 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
}
if (sdata->vif.p2p) {
- u8 noa[2];
+ struct ieee80211_p2p_noa_attr noa = {};
int ret;
ret = cfg80211_get_p2p_attr(mgmt->u.beacon.variable,
len - baselen,
IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
- noa, sizeof(noa));
- if (ret >= 2 && sdata->u.mgd.p2p_noa_index != noa[0]) {
- bss_conf->p2p_oppps = noa[1] & 0x80;
- bss_conf->p2p_ctwindow = noa[1] & 0x7f;
+ (u8 *) &noa, sizeof(noa));
+ if (ret >= 2) {
+ if (sdata->u.mgd.p2p_noa_index != noa.index) {
+ /* valid noa_attr and index changed */
+ sdata->u.mgd.p2p_noa_index = noa.index;
+ memcpy(&bss_conf->p2p_noa_attr, &noa, sizeof(noa));
+ changed |= BSS_CHANGED_P2P_PS;
+ /*
+ * make sure we update all information, the CRC
+ * mechanism doesn't look at P2P attributes.
+ */
+ ifmgd->beacon_crc_valid = false;
+ }
+ } else if (sdata->u.mgd.p2p_noa_index != -1) {
+ /* noa_attr not found and we had valid noa_attr before */
+ sdata->u.mgd.p2p_noa_index = -1;
+ memset(&bss_conf->p2p_noa_attr, 0, sizeof(bss_conf->p2p_noa_attr));
changed |= BSS_CHANGED_P2P_PS;
- sdata->u.mgd.p2p_noa_index = noa[0];
- /*
- * make sure we update all information, the CRC
- * mechanism doesn't look at P2P attributes.
- */
ifmgd->beacon_crc_valid = false;
}
}
@@ -3014,7 +3112,7 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
changed |= BSS_CHANGED_DTIM_PERIOD;
}
- if (elems.erp_info && elems.erp_info_len >= 1) {
+ if (elems.erp_info) {
erp_valid = true;
erp_value = elems.erp_info[0];
} else {
@@ -3064,6 +3162,8 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
enum rx_mgmt_action rma = RX_MGMT_NONE;
u8 deauth_buf[IEEE80211_DEAUTH_FRAME_LEN];
u16 fc;
+ struct ieee802_11_elems elems;
+ int ies_len;
rx_status = (struct ieee80211_rx_status *) skb->cb;
mgmt = (struct ieee80211_mgmt *) skb->data;
@@ -3093,14 +3193,48 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
rma = ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len, &bss);
break;
case IEEE80211_STYPE_ACTION:
- switch (mgmt->u.action.category) {
- case WLAN_CATEGORY_SPECTRUM_MGMT:
+ if (mgmt->u.action.category == 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_sta_process_chanswitch(sdata,
- &mgmt->u.action.u.chan_switch.sw_elem,
- (void *)ifmgd->associated->priv,
- rx_status->mactime);
- break;
+ rx_status->mactime,
+ &elems);
+ } else if (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) {
+ ies_len = skb->len -
+ offsetof(struct ieee80211_mgmt,
+ u.action.u.ext_chan_switch.variable);
+
+ if (ies_len < 0)
+ break;
+
+ ieee802_11_parse_elems(
+ mgmt->u.action.u.ext_chan_switch.variable,
+ ies_len, true, &elems);
+
+ if (elems.parse_error)
+ break;
+
+ /* for the handling code pretend this was also an IE */
+ elems.ext_chansw_ie =
+ &mgmt->u.action.u.ext_chan_switch.data;
+
+ ieee80211_sta_process_chanswitch(sdata,
+ rx_status->mactime,
+ &elems);
}
+ break;
}
mutex_unlock(&ifmgd->mtx);
@@ -3513,8 +3647,9 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
ifmgd->flags = 0;
ifmgd->powersave = sdata->wdev.ps;
- ifmgd->uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES;
- ifmgd->uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN;
+ ifmgd->uapsd_queues = sdata->local->hw.uapsd_queues;
+ ifmgd->uapsd_max_sp_len = sdata->local->hw.uapsd_max_sp_len;
+ ifmgd->p2p_noa_index = -1;
mutex_init(&ifmgd->mtx);
@@ -4079,7 +4214,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
rcu_read_unlock();
if (bss->wmm_used && bss->uapsd_supported &&
- (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)) {
+ (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD) &&
+ sdata->wmm_acm != 0xff) {
assoc_data->uapsd = true;
ifmgd->flags |= IEEE80211_STA_UAPSD_ENABLED;
} else {
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index cce795871ab1..acd1f71adc03 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -445,15 +445,15 @@ void ieee80211_roc_setup(struct ieee80211_local *local)
INIT_LIST_HEAD(&local->roc_list);
}
-void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata)
+void ieee80211_roc_purge(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_local *local = sdata->local;
struct ieee80211_roc_work *roc, *tmp;
LIST_HEAD(tmp_list);
mutex_lock(&local->mtx);
list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
- if (roc->sdata != sdata)
+ if (sdata && roc->sdata != sdata)
continue;
if (roc->started && local->ops->remain_on_channel) {
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index 3d16f4e61743..7fc5d0d8149a 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -19,6 +19,10 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
ieee80211_dfs_cac_cancel(local);
+ ieee80211_roc_purge(local, NULL);
+
+ ieee80211_del_virtual_monitor(local);
+
if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
mutex_lock(&local->sta_mtx);
list_for_each_entry(sta, &local->sta_list, list) {
@@ -33,8 +37,9 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
IEEE80211_MAX_QUEUE_MAP,
IEEE80211_QUEUE_STOP_REASON_SUSPEND);
- /* flush out all packets */
+ /* flush out all packets and station cleanup call_rcu()s */
synchronize_net();
+ rcu_barrier();
ieee80211_flush_queues(local, NULL);
@@ -101,10 +106,6 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
drv_remove_interface(local, sdata);
}
- sdata = rtnl_dereference(local->monitor_sdata);
- if (sdata)
- drv_remove_interface(local, sdata);
-
/*
* We disconnected on all interfaces before suspend, all channel
* contexts should be released.
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index dd88381c53b7..0d51877efdb7 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -252,6 +252,25 @@ rate_lowest_non_cck_index(struct ieee80211_supported_band *sband,
return 0;
}
+static void __rate_control_send_low(struct ieee80211_hw *hw,
+ struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta,
+ struct ieee80211_tx_info *info)
+{
+ if ((sband->band != IEEE80211_BAND_2GHZ) ||
+ !(info->flags & IEEE80211_TX_CTL_NO_CCK_RATE))
+ info->control.rates[0].idx = rate_lowest_index(sband, sta);
+ else
+ info->control.rates[0].idx =
+ rate_lowest_non_cck_index(sband, sta);
+
+ info->control.rates[0].count =
+ (info->flags & IEEE80211_TX_CTL_NO_ACK) ?
+ 1 : hw->max_rate_tries;
+
+ info->control.skip_table = 1;
+}
+
bool rate_control_send_low(struct ieee80211_sta *sta,
void *priv_sta,
@@ -262,16 +281,8 @@ bool rate_control_send_low(struct ieee80211_sta *sta,
int mcast_rate;
if (!sta || !priv_sta || rc_no_data_or_no_ack_use_min(txrc)) {
- if ((sband->band != IEEE80211_BAND_2GHZ) ||
- !(info->flags & IEEE80211_TX_CTL_NO_CCK_RATE))
- info->control.rates[0].idx =
- rate_lowest_index(txrc->sband, sta);
- else
- info->control.rates[0].idx =
- rate_lowest_non_cck_index(txrc->sband, sta);
- info->control.rates[0].count =
- (info->flags & IEEE80211_TX_CTL_NO_ACK) ?
- 1 : txrc->hw->max_rate_tries;
+ __rate_control_send_low(txrc->hw, sband, sta, info);
+
if (!sta && txrc->bss) {
mcast_rate = txrc->bss_conf->mcast_rate[sband->band];
if (mcast_rate > 0) {
@@ -355,7 +366,8 @@ static bool rate_idx_match_mcs_mask(struct ieee80211_tx_rate *rate,
static void rate_idx_match_mask(struct ieee80211_tx_rate *rate,
- struct ieee80211_tx_rate_control *txrc,
+ struct ieee80211_supported_band *sband,
+ enum nl80211_chan_width chan_width,
u32 mask,
u8 mcs_mask[IEEE80211_HT_MCS_MASK_LEN])
{
@@ -375,27 +387,17 @@ static void rate_idx_match_mask(struct ieee80211_tx_rate *rate,
IEEE80211_TX_RC_USE_SHORT_PREAMBLE);
alt_rate.count = rate->count;
if (rate_idx_match_legacy_mask(&alt_rate,
- txrc->sband->n_bitrates,
- mask)) {
+ sband->n_bitrates, mask)) {
*rate = alt_rate;
return;
}
} else {
- struct sk_buff *skb = txrc->skb;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- __le16 fc;
-
/* handle legacy rates */
- if (rate_idx_match_legacy_mask(rate, txrc->sband->n_bitrates,
- mask))
+ if (rate_idx_match_legacy_mask(rate, sband->n_bitrates, mask))
return;
/* if HT BSS, and we handle a data frame, also try HT rates */
- if (txrc->bss_conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
- return;
-
- fc = hdr->frame_control;
- if (!ieee80211_is_data(fc))
+ if (chan_width == NL80211_CHAN_WIDTH_20_NOHT)
return;
alt_rate.idx = 0;
@@ -408,7 +410,7 @@ static void rate_idx_match_mask(struct ieee80211_tx_rate *rate,
alt_rate.flags |= IEEE80211_TX_RC_MCS;
- if (txrc->bss_conf->chandef.width == NL80211_CHAN_WIDTH_40)
+ if (chan_width == NL80211_CHAN_WIDTH_40)
alt_rate.flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
if (rate_idx_match_mcs_mask(&alt_rate, mcs_mask)) {
@@ -426,6 +428,228 @@ static void rate_idx_match_mask(struct ieee80211_tx_rate *rate,
*/
}
+static void rate_fixup_ratelist(struct ieee80211_vif *vif,
+ struct ieee80211_supported_band *sband,
+ struct ieee80211_tx_info *info,
+ struct ieee80211_tx_rate *rates,
+ int max_rates)
+{
+ struct ieee80211_rate *rate;
+ bool inval = false;
+ int i;
+
+ /*
+ * Set up the RTS/CTS rate as the fastest basic rate
+ * that is not faster than the data rate unless there
+ * is no basic rate slower than the data rate, in which
+ * case we pick the slowest basic rate
+ *
+ * XXX: Should this check all retry rates?
+ */
+ if (!(rates[0].flags & IEEE80211_TX_RC_MCS)) {
+ u32 basic_rates = vif->bss_conf.basic_rates;
+ s8 baserate = basic_rates ? ffs(basic_rates - 1) : 0;
+
+ rate = &sband->bitrates[rates[0].idx];
+
+ for (i = 0; i < sband->n_bitrates; i++) {
+ /* must be a basic rate */
+ if (!(basic_rates & BIT(i)))
+ continue;
+ /* must not be faster than the data rate */
+ if (sband->bitrates[i].bitrate > rate->bitrate)
+ continue;
+ /* maximum */
+ if (sband->bitrates[baserate].bitrate <
+ sband->bitrates[i].bitrate)
+ baserate = i;
+ }
+
+ info->control.rts_cts_rate_idx = baserate;
+ }
+
+ for (i = 0; i < max_rates; i++) {
+ /*
+ * make sure there's no valid rate following
+ * an invalid one, just in case drivers don't
+ * take the API seriously to stop at -1.
+ */
+ if (inval) {
+ rates[i].idx = -1;
+ continue;
+ }
+ if (rates[i].idx < 0) {
+ inval = true;
+ continue;
+ }
+
+ /*
+ * For now assume MCS is already set up correctly, this
+ * needs to be fixed.
+ */
+ if (rates[i].flags & IEEE80211_TX_RC_MCS) {
+ WARN_ON(rates[i].idx > 76);
+
+ if (!(rates[i].flags & IEEE80211_TX_RC_USE_RTS_CTS) &&
+ info->control.use_cts_prot)
+ rates[i].flags |=
+ IEEE80211_TX_RC_USE_CTS_PROTECT;
+ continue;
+ }
+
+ if (rates[i].flags & IEEE80211_TX_RC_VHT_MCS) {
+ WARN_ON(ieee80211_rate_get_vht_mcs(&rates[i]) > 9);
+ continue;
+ }
+
+ /* set up RTS protection if desired */
+ if (info->control.use_rts) {
+ rates[i].flags |= IEEE80211_TX_RC_USE_RTS_CTS;
+ info->control.use_cts_prot = false;
+ }
+
+ /* RC is busted */
+ if (WARN_ON_ONCE(rates[i].idx >= sband->n_bitrates)) {
+ rates[i].idx = -1;
+ continue;
+ }
+
+ rate = &sband->bitrates[rates[i].idx];
+
+ /* set up short preamble */
+ if (info->control.short_preamble &&
+ rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
+ rates[i].flags |= IEEE80211_TX_RC_USE_SHORT_PREAMBLE;
+
+ /* set up G protection */
+ if (!(rates[i].flags & IEEE80211_TX_RC_USE_RTS_CTS) &&
+ info->control.use_cts_prot &&
+ rate->flags & IEEE80211_RATE_ERP_G)
+ rates[i].flags |= IEEE80211_TX_RC_USE_CTS_PROTECT;
+ }
+}
+
+
+static void rate_control_fill_sta_table(struct ieee80211_sta *sta,
+ struct ieee80211_tx_info *info,
+ struct ieee80211_tx_rate *rates,
+ int max_rates)
+{
+ struct ieee80211_sta_rates *ratetbl = NULL;
+ int i;
+
+ if (sta && !info->control.skip_table)
+ ratetbl = rcu_dereference(sta->rates);
+
+ /* Fill remaining rate slots with data from the sta rate table. */
+ max_rates = min_t(int, max_rates, IEEE80211_TX_RATE_TABLE_SIZE);
+ for (i = 0; i < max_rates; i++) {
+ if (i < ARRAY_SIZE(info->control.rates) &&
+ info->control.rates[i].idx >= 0 &&
+ info->control.rates[i].count) {
+ if (rates != info->control.rates)
+ rates[i] = info->control.rates[i];
+ } else if (ratetbl) {
+ rates[i].idx = ratetbl->rate[i].idx;
+ rates[i].flags = ratetbl->rate[i].flags;
+ if (info->control.use_rts)
+ rates[i].count = ratetbl->rate[i].count_rts;
+ else if (info->control.use_cts_prot)
+ rates[i].count = ratetbl->rate[i].count_cts;
+ else
+ rates[i].count = ratetbl->rate[i].count;
+ } else {
+ rates[i].idx = -1;
+ rates[i].count = 0;
+ }
+
+ if (rates[i].idx < 0 || !rates[i].count)
+ break;
+ }
+}
+
+static void rate_control_apply_mask(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_sta *sta,
+ struct ieee80211_supported_band *sband,
+ struct ieee80211_tx_info *info,
+ struct ieee80211_tx_rate *rates,
+ int max_rates)
+{
+ enum nl80211_chan_width chan_width;
+ u8 mcs_mask[IEEE80211_HT_MCS_MASK_LEN];
+ bool has_mcs_mask;
+ u32 mask;
+ int i;
+
+ /*
+ * Try to enforce the rateidx mask the user wanted. skip this if the
+ * default mask (allow all rates) is used to save some processing for
+ * the common case.
+ */
+ mask = sdata->rc_rateidx_mask[info->band];
+ has_mcs_mask = sdata->rc_has_mcs_mask[info->band];
+ if (mask == (1 << sband->n_bitrates) - 1 && !has_mcs_mask)
+ return;
+
+ if (has_mcs_mask)
+ memcpy(mcs_mask, sdata->rc_rateidx_mcs_mask[info->band],
+ sizeof(mcs_mask));
+ else
+ memset(mcs_mask, 0xff, sizeof(mcs_mask));
+
+ if (sta) {
+ /* Filter out rates that the STA does not support */
+ mask &= sta->supp_rates[info->band];
+ for (i = 0; i < sizeof(mcs_mask); i++)
+ mcs_mask[i] &= sta->ht_cap.mcs.rx_mask[i];
+ }
+
+ /*
+ * Make sure the rate index selected for each TX rate is
+ * included in the configured mask and change the rate indexes
+ * if needed.
+ */
+ chan_width = sdata->vif.bss_conf.chandef.width;
+ for (i = 0; i < max_rates; i++) {
+ /* Skip invalid rates */
+ if (rates[i].idx < 0)
+ break;
+
+ rate_idx_match_mask(&rates[i], sband, mask, chan_width,
+ mcs_mask);
+ }
+}
+
+void ieee80211_get_tx_rates(struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct sk_buff *skb,
+ struct ieee80211_tx_rate *dest,
+ int max_rates)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_supported_band *sband;
+
+ rate_control_fill_sta_table(sta, info, dest, max_rates);
+
+ if (!vif)
+ return;
+
+ sdata = vif_to_sdata(vif);
+ sband = sdata->local->hw.wiphy->bands[info->band];
+
+ if (ieee80211_is_data(hdr->frame_control))
+ rate_control_apply_mask(sdata, sta, sband, info, dest, max_rates);
+
+ if (dest[0].idx < 0)
+ __rate_control_send_low(&sdata->local->hw, sband, sta, info);
+
+ if (sta)
+ rate_fixup_ratelist(vif, sband, info, dest, max_rates);
+}
+EXPORT_SYMBOL(ieee80211_get_tx_rates);
+
void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
struct sta_info *sta,
struct ieee80211_tx_rate_control *txrc)
@@ -435,8 +659,6 @@ void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
struct ieee80211_sta *ista = NULL;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(txrc->skb);
int i;
- u32 mask;
- u8 mcs_mask[IEEE80211_HT_MCS_MASK_LEN];
if (sta && test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) {
ista = &sta->sta;
@@ -454,37 +676,27 @@ void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
ref->ops->get_rate(ref->priv, ista, priv_sta, txrc);
- /*
- * Try to enforce the rateidx mask the user wanted. skip this if the
- * default mask (allow all rates) is used to save some processing for
- * the common case.
- */
- mask = sdata->rc_rateidx_mask[info->band];
- memcpy(mcs_mask, sdata->rc_rateidx_mcs_mask[info->band],
- sizeof(mcs_mask));
- if (mask != (1 << txrc->sband->n_bitrates) - 1) {
- if (sta) {
- /* Filter out rates that the STA does not support */
- mask &= sta->sta.supp_rates[info->band];
- for (i = 0; i < sizeof(mcs_mask); i++)
- mcs_mask[i] &= sta->sta.ht_cap.mcs.rx_mask[i];
- }
- /*
- * Make sure the rate index selected for each TX rate is
- * included in the configured mask and change the rate indexes
- * if needed.
- */
- for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
- /* Skip invalid rates */
- if (info->control.rates[i].idx < 0)
- break;
- rate_idx_match_mask(&info->control.rates[i], txrc,
- mask, mcs_mask);
- }
- }
+ if (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_RC_TABLE)
+ return;
+
+ ieee80211_get_tx_rates(&sdata->vif, ista, txrc->skb,
+ info->control.rates,
+ ARRAY_SIZE(info->control.rates));
+}
- BUG_ON(info->control.rates[0].idx < 0);
+int rate_control_set_rates(struct ieee80211_hw *hw,
+ struct ieee80211_sta *pubsta,
+ struct ieee80211_sta_rates *rates)
+{
+ struct ieee80211_sta_rates *old = rcu_dereference(pubsta->rates);
+
+ rcu_assign_pointer(pubsta->rates, rates);
+ if (old)
+ kfree_rcu(old, rcu_head);
+
+ return 0;
}
+EXPORT_SYMBOL(rate_control_set_rates);
int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
const char *name)
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 1c36c9b4fa4a..ac7ef5414bde 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -84,6 +84,50 @@ minstrel_sort_best_tp_rates(struct minstrel_sta_info *mi, int i, u8 *tp_list)
}
static void
+minstrel_set_rate(struct minstrel_sta_info *mi, struct ieee80211_sta_rates *ratetbl,
+ int offset, int idx)
+{
+ struct minstrel_rate *r = &mi->r[idx];
+
+ ratetbl->rate[offset].idx = r->rix;
+ ratetbl->rate[offset].count = r->adjusted_retry_count;
+ ratetbl->rate[offset].count_cts = r->retry_count_cts;
+ ratetbl->rate[offset].count_rts = r->retry_count_rtscts;
+}
+
+static void
+minstrel_update_rates(struct minstrel_priv *mp, struct minstrel_sta_info *mi)
+{
+ struct ieee80211_sta_rates *ratetbl;
+ int i = 0;
+
+ ratetbl = kzalloc(sizeof(*ratetbl), GFP_ATOMIC);
+ if (!ratetbl)
+ return;
+
+ /* Start with max_tp_rate */
+ minstrel_set_rate(mi, ratetbl, i++, mi->max_tp_rate[0]);
+
+ if (mp->hw->max_rates >= 3) {
+ /* At least 3 tx rates supported, use max_tp_rate2 next */
+ minstrel_set_rate(mi, ratetbl, i++, mi->max_tp_rate[1]);
+ }
+
+ if (mp->hw->max_rates >= 2) {
+ /* At least 2 tx rates supported, use max_prob_rate next */
+ minstrel_set_rate(mi, ratetbl, i++, mi->max_prob_rate);
+ }
+
+ /* Use lowest rate last */
+ ratetbl->rate[i].idx = mi->lowest_rix;
+ ratetbl->rate[i].count = mp->max_retry;
+ ratetbl->rate[i].count_cts = mp->max_retry;
+ ratetbl->rate[i].count_rts = mp->max_retry;
+
+ rate_control_set_rates(mp->hw, mi->sta, ratetbl);
+}
+
+static void
minstrel_update_stats(struct minstrel_priv *mp, struct minstrel_sta_info *mi)
{
u8 tmp_tp_rate[MAX_THR_RATES];
@@ -161,6 +205,8 @@ minstrel_update_stats(struct minstrel_priv *mp, struct minstrel_sta_info *mi)
/* Reset update timer */
mi->stats_update = jiffies;
+
+ minstrel_update_rates(mp, mi);
}
static void
@@ -209,9 +255,9 @@ minstrel_get_retry_count(struct minstrel_rate *mr,
{
unsigned int retry = mr->adjusted_retry_count;
- if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS)
+ if (info->control.use_rts)
retry = max(2U, min(mr->retry_count_rtscts, retry));
- else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
+ else if (info->control.use_cts_prot)
retry = max(2U, min(mr->retry_count_cts, retry));
return retry;
}
@@ -240,13 +286,12 @@ minstrel_get_rate(void *priv, struct ieee80211_sta *sta,
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct minstrel_sta_info *mi = priv_sta;
struct minstrel_priv *mp = priv;
- struct ieee80211_tx_rate *ar = info->control.rates;
- unsigned int ndx, sample_ndx = 0;
+ struct ieee80211_tx_rate *rate = &info->control.rates[0];
+ struct minstrel_rate *msr, *mr;
+ unsigned int ndx;
bool mrr_capable;
- bool indirect_rate_sampling = false;
- bool rate_sampling = false;
- int i, delta;
- int mrr_ndx[3];
+ bool prev_sample = mi->prev_sample;
+ int delta;
int sampling_ratio;
/* management/no-ack frames do not use rate control */
@@ -262,107 +307,75 @@ minstrel_get_rate(void *priv, struct ieee80211_sta *sta,
else
sampling_ratio = mp->lookaround_rate;
- /* init rateindex [ndx] with max throughput rate */
- ndx = mi->max_tp_rate[0];
-
/* increase sum packet counter */
mi->packet_count++;
delta = (mi->packet_count * sampling_ratio / 100) -
(mi->sample_count + mi->sample_deferred / 2);
- /* delta > 0: sampling required */
- if ((delta > 0) && (mrr_capable || !mi->prev_sample)) {
- struct minstrel_rate *msr;
- if (mi->packet_count >= 10000) {
- mi->sample_deferred = 0;
- mi->sample_count = 0;
- mi->packet_count = 0;
- } else if (delta > mi->n_rates * 2) {
- /* With multi-rate retry, not every planned sample
- * attempt actually gets used, due to the way the retry
- * chain is set up - [max_tp,sample,prob,lowest] for
- * sample_rate < max_tp.
- *
- * If there's too much sampling backlog and the link
- * starts getting worse, minstrel would start bursting
- * out lots of sampling frames, which would result
- * in a large throughput loss. */
- mi->sample_count += (delta - mi->n_rates * 2);
- }
+ /* delta < 0: no sampling required */
+ mi->prev_sample = false;
+ if (delta < 0 || (!mrr_capable && prev_sample))
+ return;
- /* get next random rate sample */
- sample_ndx = minstrel_get_next_sample(mi);
- msr = &mi->r[sample_ndx];
- rate_sampling = true;
-
- /* Decide if direct ( 1st mrr stage) or indirect (2nd mrr stage)
- * rate sampling method should be used.
- * Respect such rates that are not sampled for 20 interations.
- */
- if (mrr_capable &&
- msr->perfect_tx_time > mi->r[ndx].perfect_tx_time &&
- msr->sample_skipped < 20)
- indirect_rate_sampling = true;
-
- if (!indirect_rate_sampling) {
- if (msr->sample_limit != 0) {
- ndx = sample_ndx;
- mi->sample_count++;
- if (msr->sample_limit > 0)
- msr->sample_limit--;
- } else
- rate_sampling = false;
- } else {
- /* Only use IEEE80211_TX_CTL_RATE_CTRL_PROBE to mark
- * packets that have the sampling rate deferred to the
- * second MRR stage. Increase the sample counter only
- * if the deferred sample rate was actually used.
- * Use the sample_deferred counter to make sure that
- * the sampling is not done in large bursts */
- info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
- mi->sample_deferred++;
- }
+ if (mi->packet_count >= 10000) {
+ mi->sample_deferred = 0;
+ mi->sample_count = 0;
+ mi->packet_count = 0;
+ } else if (delta > mi->n_rates * 2) {
+ /* With multi-rate retry, not every planned sample
+ * attempt actually gets used, due to the way the retry
+ * chain is set up - [max_tp,sample,prob,lowest] for
+ * sample_rate < max_tp.
+ *
+ * If there's too much sampling backlog and the link
+ * starts getting worse, minstrel would start bursting
+ * out lots of sampling frames, which would result
+ * in a large throughput loss. */
+ mi->sample_count += (delta - mi->n_rates * 2);
+ }
+
+ /* get next random rate sample */
+ ndx = minstrel_get_next_sample(mi);
+ msr = &mi->r[ndx];
+ mr = &mi->r[mi->max_tp_rate[0]];
+
+ /* Decide if direct ( 1st mrr stage) or indirect (2nd mrr stage)
+ * rate sampling method should be used.
+ * Respect such rates that are not sampled for 20 interations.
+ */
+ if (mrr_capable &&
+ msr->perfect_tx_time > mr->perfect_tx_time &&
+ msr->sample_skipped < 20) {
+ /* Only use IEEE80211_TX_CTL_RATE_CTRL_PROBE to mark
+ * packets that have the sampling rate deferred to the
+ * second MRR stage. Increase the sample counter only
+ * if the deferred sample rate was actually used.
+ * Use the sample_deferred counter to make sure that
+ * the sampling is not done in large bursts */
+ info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
+ rate++;
+ mi->sample_deferred++;
+ } else {
+ if (!msr->sample_limit != 0)
+ return;
+
+ mi->sample_count++;
+ if (msr->sample_limit > 0)
+ msr->sample_limit--;
}
- mi->prev_sample = rate_sampling;
/* If we're not using MRR and the sampling rate already
* has a probability of >95%, we shouldn't be attempting
* to use it, as this only wastes precious airtime */
- if (!mrr_capable && rate_sampling &&
+ if (!mrr_capable &&
(mi->r[ndx].probability > MINSTREL_FRAC(95, 100)))
- ndx = mi->max_tp_rate[0];
-
- /* mrr setup for 1st stage */
- ar[0].idx = mi->r[ndx].rix;
- ar[0].count = minstrel_get_retry_count(&mi->r[ndx], info);
-
- /* non mrr setup for 2nd stage */
- if (!mrr_capable) {
- if (!rate_sampling)
- ar[0].count = mp->max_retry;
- ar[1].idx = mi->lowest_rix;
- ar[1].count = mp->max_retry;
return;
- }
- /* mrr setup for 2nd stage */
- if (rate_sampling) {
- if (indirect_rate_sampling)
- mrr_ndx[0] = sample_ndx;
- else
- mrr_ndx[0] = mi->max_tp_rate[0];
- } else {
- mrr_ndx[0] = mi->max_tp_rate[1];
- }
+ mi->prev_sample = true;
- /* mrr setup for 3rd & 4th stage */
- mrr_ndx[1] = mi->max_prob_rate;
- mrr_ndx[2] = 0;
- for (i = 1; i < 4; i++) {
- ar[i].idx = mi->r[mrr_ndx[i - 1]].rix;
- ar[i].count = mi->r[mrr_ndx[i - 1]].adjusted_retry_count;
- }
+ rate->idx = mi->r[ndx].rix;
+ rate->count = minstrel_get_retry_count(&mi->r[ndx], info);
}
@@ -412,12 +425,16 @@ minstrel_rate_init(void *priv, struct ieee80211_supported_band *sband,
unsigned int i, n = 0;
unsigned int t_slot = 9; /* FIXME: get real slot time */
+ mi->sta = sta;
mi->lowest_rix = rate_lowest_index(sband, sta);
ctl_rate = &sband->bitrates[mi->lowest_rix];
mi->sp_ack_dur = ieee80211_frame_duration(sband->band, 10,
ctl_rate->bitrate,
!!(ctl_rate->flags & IEEE80211_RATE_ERP_G), 1);
+ memset(mi->max_tp_rate, 0, sizeof(mi->max_tp_rate));
+ mi->max_prob_rate = 0;
+
for (i = 0; i < sband->n_bitrates; i++) {
struct minstrel_rate *mr = &mi->r[n];
unsigned int tx_time = 0, tx_time_cts = 0, tx_time_rtscts = 0;
@@ -460,6 +477,8 @@ minstrel_rate_init(void *priv, struct ieee80211_supported_band *sband,
} while ((tx_time < mp->segment_size) &&
(++mr->retry_count < mp->max_retry));
mr->adjusted_retry_count = mr->retry_count;
+ if (!(sband->bitrates[i].flags & IEEE80211_RATE_ERP_G))
+ mr->retry_count_cts = mr->retry_count;
}
for (i = n; i < sband->n_bitrates; i++) {
@@ -471,6 +490,7 @@ minstrel_rate_init(void *priv, struct ieee80211_supported_band *sband,
mi->stats_update = jiffies;
init_sample_table(mi);
+ minstrel_update_rates(mp, mi);
}
static void *
diff --git a/net/mac80211/rc80211_minstrel.h b/net/mac80211/rc80211_minstrel.h
index 85ebf42cb46d..f4301f4b2e41 100644
--- a/net/mac80211/rc80211_minstrel.h
+++ b/net/mac80211/rc80211_minstrel.h
@@ -9,7 +9,8 @@
#ifndef __RC_MINSTREL_H
#define __RC_MINSTREL_H
-#define EWMA_LEVEL 75 /* ewma weighting factor [%] */
+#define EWMA_LEVEL 96 /* ewma weighting factor [/EWMA_DIV] */
+#define EWMA_DIV 128
#define SAMPLE_COLUMNS 10 /* number of columns in sample table */
@@ -27,7 +28,7 @@
static inline int
minstrel_ewma(int old, int new, int weight)
{
- return (new * (100 - weight) + old * weight) / 100;
+ return (new * (EWMA_DIV - weight) + old * weight) / EWMA_DIV;
}
@@ -62,6 +63,8 @@ struct minstrel_rate {
};
struct minstrel_sta_info {
+ struct ieee80211_sta *sta;
+
unsigned long stats_update;
unsigned int sp_ack_dur;
unsigned int rate_avg;
diff --git a/net/mac80211/rc80211_minstrel_debugfs.c b/net/mac80211/rc80211_minstrel_debugfs.c
index d1048348d399..fd0b9ca1570e 100644
--- a/net/mac80211/rc80211_minstrel_debugfs.c
+++ b/net/mac80211/rc80211_minstrel_debugfs.c
@@ -68,7 +68,7 @@ minstrel_stats_open(struct inode *inode, struct file *file)
file->private_data = ms;
p = ms->buf;
- p += sprintf(p, "rate throughput ewma prob this prob "
+ p += sprintf(p, "rate throughput ewma prob this prob "
"this succ/attempt success attempts\n");
for (i = 0; i < mi->n_rates; i++) {
struct minstrel_rate *mr = &mi->r[i];
@@ -86,7 +86,7 @@ minstrel_stats_open(struct inode *inode, struct file *file)
eprob = MINSTREL_TRUNC(mr->probability * 1000);
p += sprintf(p, " %6u.%1u %6u.%1u %6u.%1u "
- "%3u(%3u) %8llu %8llu\n",
+ " %3u(%3u) %8llu %8llu\n",
tp / 10, tp % 10,
eprob / 10, eprob % 10,
prob / 10, prob % 10,
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index d2b264d1311d..5b2d3012b983 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -126,6 +126,9 @@ const struct mcs_group minstrel_mcs_groups[] = {
static u8 sample_table[SAMPLE_COLUMNS][MCS_GROUP_RATES];
+static void
+minstrel_ht_update_rates(struct minstrel_priv *mp, struct minstrel_ht_sta *mi);
+
/*
* Look up an MCS group index based on mac80211 rate information
*/
@@ -244,6 +247,7 @@ minstrel_ht_update_stats(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
struct minstrel_rate_stats *mr;
int cur_prob, cur_prob_tp, cur_tp, cur_tp2;
int group, i, index;
+ bool mi_rates_valid = false;
if (mi->ampdu_packets > 0) {
mi->avg_ampdu_len = minstrel_ewma(mi->avg_ampdu_len,
@@ -254,11 +258,10 @@ minstrel_ht_update_stats(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
mi->sample_slow = 0;
mi->sample_count = 0;
- mi->max_tp_rate = 0;
- mi->max_tp_rate2 = 0;
- mi->max_prob_rate = 0;
for (group = 0; group < ARRAY_SIZE(minstrel_mcs_groups); group++) {
+ bool mg_rates_valid = false;
+
cur_prob = 0;
cur_prob_tp = 0;
cur_tp = 0;
@@ -268,15 +271,24 @@ minstrel_ht_update_stats(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
if (!mg->supported)
continue;
- mg->max_tp_rate = 0;
- mg->max_tp_rate2 = 0;
- mg->max_prob_rate = 0;
mi->sample_count++;
for (i = 0; i < MCS_GROUP_RATES; i++) {
if (!(mg->supported & BIT(i)))
continue;
+ /* initialize rates selections starting indexes */
+ if (!mg_rates_valid) {
+ mg->max_tp_rate = mg->max_tp_rate2 =
+ mg->max_prob_rate = i;
+ if (!mi_rates_valid) {
+ mi->max_tp_rate = mi->max_tp_rate2 =
+ mi->max_prob_rate = i;
+ mi_rates_valid = true;
+ }
+ mg_rates_valid = true;
+ }
+
mr = &mg->rates[i];
mr->retry_updated = false;
index = MCS_GROUP_RATES * group + i;
@@ -456,7 +468,7 @@ minstrel_ht_tx_status(void *priv, struct ieee80211_supported_band *sband,
struct ieee80211_tx_rate *ar = info->status.rates;
struct minstrel_rate_stats *rate, *rate2;
struct minstrel_priv *mp = priv;
- bool last;
+ bool last, update = false;
int i;
if (!msp->is_ht)
@@ -505,21 +517,29 @@ minstrel_ht_tx_status(void *priv, struct ieee80211_supported_band *sband,
rate = minstrel_get_ratestats(mi, mi->max_tp_rate);
if (rate->attempts > 30 &&
MINSTREL_FRAC(rate->success, rate->attempts) <
- MINSTREL_FRAC(20, 100))
+ MINSTREL_FRAC(20, 100)) {
minstrel_downgrade_rate(mi, &mi->max_tp_rate, true);
+ update = true;
+ }
rate2 = minstrel_get_ratestats(mi, mi->max_tp_rate2);
if (rate2->attempts > 30 &&
MINSTREL_FRAC(rate2->success, rate2->attempts) <
- MINSTREL_FRAC(20, 100))
+ MINSTREL_FRAC(20, 100)) {
minstrel_downgrade_rate(mi, &mi->max_tp_rate2, false);
+ update = true;
+ }
if (time_after(jiffies, mi->stats_update + (mp->update_interval / 2 * HZ) / 1000)) {
+ update = true;
minstrel_ht_update_stats(mp, mi);
if (!(info->flags & IEEE80211_TX_CTL_AMPDU) &&
mi->max_prob_rate / MCS_GROUP_RATES != MINSTREL_CCK_GROUP)
minstrel_aggr_check(sta, skb);
}
+
+ if (update)
+ minstrel_ht_update_rates(mp, mi);
}
static void
@@ -583,36 +603,71 @@ minstrel_calc_retransmit(struct minstrel_priv *mp, struct minstrel_ht_sta *mi,
static void
minstrel_ht_set_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi,
- struct ieee80211_tx_rate *rate, int index,
- bool sample, bool rtscts)
+ struct ieee80211_sta_rates *ratetbl, int offset, int index)
{
const struct mcs_group *group = &minstrel_mcs_groups[index / MCS_GROUP_RATES];
struct minstrel_rate_stats *mr;
+ u8 idx;
+ u16 flags;
mr = minstrel_get_ratestats(mi, index);
if (!mr->retry_updated)
minstrel_calc_retransmit(mp, mi, index);
- if (sample)
- rate->count = 1;
- else if (mr->probability < MINSTREL_FRAC(20, 100))
- rate->count = 2;
- else if (rtscts)
- rate->count = mr->retry_count_rtscts;
- else
- rate->count = mr->retry_count;
-
- rate->flags = 0;
- if (rtscts)
- rate->flags |= IEEE80211_TX_RC_USE_RTS_CTS;
+ if (mr->probability < MINSTREL_FRAC(20, 100) || !mr->retry_count) {
+ ratetbl->rate[offset].count = 2;
+ ratetbl->rate[offset].count_rts = 2;
+ ratetbl->rate[offset].count_cts = 2;
+ } else {
+ ratetbl->rate[offset].count = mr->retry_count;
+ ratetbl->rate[offset].count_cts = mr->retry_count;
+ ratetbl->rate[offset].count_rts = mr->retry_count_rtscts;
+ }
if (index / MCS_GROUP_RATES == MINSTREL_CCK_GROUP) {
- rate->idx = mp->cck_rates[index % ARRAY_SIZE(mp->cck_rates)];
+ idx = mp->cck_rates[index % ARRAY_SIZE(mp->cck_rates)];
+ flags = 0;
+ } else {
+ idx = index % MCS_GROUP_RATES +
+ (group->streams - 1) * MCS_GROUP_RATES;
+ flags = IEEE80211_TX_RC_MCS | group->flags;
+ }
+
+ if (offset > 0) {
+ ratetbl->rate[offset].count = ratetbl->rate[offset].count_rts;
+ flags |= IEEE80211_TX_RC_USE_RTS_CTS;
+ }
+
+ ratetbl->rate[offset].idx = idx;
+ ratetbl->rate[offset].flags = flags;
+}
+
+static void
+minstrel_ht_update_rates(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
+{
+ struct ieee80211_sta_rates *rates;
+ int i = 0;
+
+ rates = kzalloc(sizeof(*rates), GFP_ATOMIC);
+ if (!rates)
return;
+
+ /* Start with max_tp_rate */
+ minstrel_ht_set_rate(mp, mi, rates, i++, mi->max_tp_rate);
+
+ if (mp->hw->max_rates >= 3) {
+ /* At least 3 tx rates supported, use max_tp_rate2 next */
+ minstrel_ht_set_rate(mp, mi, rates, i++, mi->max_tp_rate2);
+ }
+
+ if (mp->hw->max_rates >= 2) {
+ /*
+ * At least 2 tx rates supported, use max_prob_rate next */
+ minstrel_ht_set_rate(mp, mi, rates, i++, mi->max_prob_rate);
}
- rate->flags |= IEEE80211_TX_RC_MCS | group->flags;
- rate->idx = index % MCS_GROUP_RATES + (group->streams - 1) * MCS_GROUP_RATES;
+ rates->rate[i].idx = -1;
+ rate_control_set_rates(mp->hw, mi->sta, rates);
}
static inline int
@@ -702,13 +757,13 @@ static void
minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
struct ieee80211_tx_rate_control *txrc)
{
+ const struct mcs_group *sample_group;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(txrc->skb);
- struct ieee80211_tx_rate *ar = info->status.rates;
+ struct ieee80211_tx_rate *rate = &info->status.rates[0];
struct minstrel_ht_sta_priv *msp = priv_sta;
struct minstrel_ht_sta *mi = &msp->ht;
struct minstrel_priv *mp = priv;
int sample_idx;
- bool sample = false;
if (rate_control_send_low(sta, priv_sta, txrc))
return;
@@ -736,51 +791,6 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
}
#endif
- if (sample_idx >= 0) {
- sample = true;
- minstrel_ht_set_rate(mp, mi, &ar[0], sample_idx,
- true, false);
- info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
- } else {
- minstrel_ht_set_rate(mp, mi, &ar[0], mi->max_tp_rate,
- false, false);
- }
-
- if (mp->hw->max_rates >= 3) {
- /*
- * At least 3 tx rates supported, use
- * sample_rate -> max_tp_rate -> max_prob_rate for sampling and
- * max_tp_rate -> max_tp_rate2 -> max_prob_rate by default.
- */
- if (sample_idx >= 0)
- minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate,
- false, false);
- else
- minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate2,
- false, true);
-
- minstrel_ht_set_rate(mp, mi, &ar[2], mi->max_prob_rate,
- false, !sample);
-
- ar[3].count = 0;
- ar[3].idx = -1;
- } else if (mp->hw->max_rates == 2) {
- /*
- * Only 2 tx rates supported, use
- * sample_rate -> max_prob_rate for sampling and
- * max_tp_rate -> max_prob_rate by default.
- */
- minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_prob_rate,
- false, !sample);
-
- ar[2].count = 0;
- ar[2].idx = -1;
- } else {
- /* Not using MRR, only use the first rate */
- ar[1].count = 0;
- ar[1].idx = -1;
- }
-
mi->total_packets++;
/* wraparound */
@@ -788,6 +798,16 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
mi->total_packets = 0;
mi->sample_packets = 0;
}
+
+ if (sample_idx < 0)
+ return;
+
+ sample_group = &minstrel_mcs_groups[sample_idx / MCS_GROUP_RATES];
+ info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
+ rate->idx = sample_idx % MCS_GROUP_RATES +
+ (sample_group->streams - 1) * MCS_GROUP_RATES;
+ rate->flags = IEEE80211_TX_RC_MCS | sample_group->flags;
+ rate->count = 1;
}
static void
@@ -837,6 +857,8 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
msp->is_ht = true;
memset(mi, 0, sizeof(*mi));
+
+ mi->sta = sta;
mi->stats_update = jiffies;
ack_dur = ieee80211_frame_duration(sband->band, 10, 60, 1, 1);
@@ -898,6 +920,10 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
if (!n_supported)
goto use_legacy;
+ /* create an initial rate table with the lowest supported rates */
+ minstrel_ht_update_stats(mp, mi);
+ minstrel_ht_update_rates(mp, mi);
+
return;
use_legacy:
diff --git a/net/mac80211/rc80211_minstrel_ht.h b/net/mac80211/rc80211_minstrel_ht.h
index 9b16e9de9923..d655586773ac 100644
--- a/net/mac80211/rc80211_minstrel_ht.h
+++ b/net/mac80211/rc80211_minstrel_ht.h
@@ -65,6 +65,8 @@ struct minstrel_mcs_group_data {
};
struct minstrel_ht_sta {
+ struct ieee80211_sta *sta;
+
/* ampdu length (average, per sampling interval) */
unsigned int ampdu_len;
unsigned int ampdu_packets;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 2528b5a4d6d4..c8447af76ead 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2085,6 +2085,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
}
fwd_hdr = (struct ieee80211_hdr *) fwd_skb->data;
+ fwd_hdr->frame_control &= ~cpu_to_le16(IEEE80211_FCTL_RETRY);
info = IEEE80211_SKB_CB(fwd_skb);
memset(info, 0, sizeof(*info));
info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
@@ -2423,6 +2424,22 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
}
break;
+ case WLAN_CATEGORY_PUBLIC:
+ if (len < IEEE80211_MIN_ACTION_SIZE + 1)
+ goto invalid;
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
+ break;
+ if (!rx->sta)
+ break;
+ if (!ether_addr_equal(mgmt->bssid, sdata->u.mgd.bssid))
+ break;
+ if (mgmt->u.action.u.ext_chan_switch.action_code !=
+ WLAN_PUB_ACTION_EXT_CHANSW_ANN)
+ break;
+ if (len < offsetof(struct ieee80211_mgmt,
+ u.action.u.ext_chan_switch.variable))
+ goto invalid;
+ goto queue;
case WLAN_CATEGORY_VHT:
if (sdata->vif.type != NL80211_IFTYPE_STATION &&
sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
@@ -2506,10 +2523,6 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
ieee80211_process_measurement_req(sdata, mgmt, len);
goto handled;
case WLAN_ACTION_SPCT_CHL_SWITCH:
- if (len < (IEEE80211_MIN_ACTION_SIZE +
- sizeof(mgmt->u.action.u.chan_switch)))
- break;
-
if (sdata->vif.type != NL80211_IFTYPE_STATION)
break;
@@ -3042,7 +3055,8 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
!ieee80211_is_probe_resp(hdr->frame_control) &&
!ieee80211_is_beacon(hdr->frame_control))
return 0;
- if (!ether_addr_equal(sdata->vif.addr, hdr->addr1))
+ if (!ether_addr_equal(sdata->vif.addr, hdr->addr1) &&
+ !multicast)
status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
break;
default:
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index cb34cbbaa20c..99b103921a4b 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -98,9 +98,8 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
}
/* save the ERP value so that it is available at association time */
- if (elems->erp_info && elems->erp_info_len >= 1 &&
- (!elems->parse_error ||
- !(bss->valid_data & IEEE80211_BSS_VALID_ERP))) {
+ if (elems->erp_info && (!elems->parse_error ||
+ !(bss->valid_data & IEEE80211_BSS_VALID_ERP))) {
bss->erp_value = elems->erp_info[0];
bss->has_erp_value = true;
if (!elems->parse_error)
@@ -182,7 +181,7 @@ void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb)
if (baselen > skb->len)
return;
- ieee802_11_parse_elems(elements, skb->len - baselen, &elems);
+ ieee802_11_parse_elems(elements, skb->len - baselen, false, &elems);
channel = ieee80211_get_channel(local->hw.wiphy, rx_status->freq);
@@ -384,7 +383,7 @@ static void ieee80211_scan_state_send_probe(struct ieee80211_local *local,
{
int i;
struct ieee80211_sub_if_data *sdata;
- enum ieee80211_band band = local->hw.conf.channel->band;
+ enum ieee80211_band band = local->hw.conf.chandef.chan->band;
u32 tx_flags;
tx_flags = IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
@@ -401,7 +400,7 @@ static void ieee80211_scan_state_send_probe(struct ieee80211_local *local,
local->scan_req->ssids[i].ssid_len,
local->scan_req->ie, local->scan_req->ie_len,
local->scan_req->rates[band], false,
- tx_flags, local->hw.conf.channel, true);
+ tx_flags, local->hw.conf.chandef.chan, true);
/*
* After sending probe requests, wait for probe responses
@@ -467,7 +466,7 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
if (local->ops->hw_scan) {
__set_bit(SCAN_HW_SCANNING, &local->scanning);
} else if ((req->n_channels == 1) &&
- (req->channels[0] == local->_oper_channel)) {
+ (req->channels[0] == local->_oper_chandef.chan)) {
/*
* If we are scanning only on the operating channel
* then we do not need to stop normal activities
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index c5899797a8d4..c215fafd7a2f 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -28,27 +28,27 @@
#define VIF_PR_FMT " vif:%s(%d%s)"
#define VIF_PR_ARG __get_str(vif_name), __entry->vif_type, __entry->p2p ? "/p2p" : ""
-#define CHANDEF_ENTRY __field(u32, control_freq) \
- __field(u32, chan_width) \
- __field(u32, center_freq1) \
+#define CHANDEF_ENTRY __field(u32, control_freq) \
+ __field(u32, chan_width) \
+ __field(u32, center_freq1) \
__field(u32, center_freq2)
-#define CHANDEF_ASSIGN(c) \
- __entry->control_freq = (c)->chan->center_freq; \
- __entry->chan_width = (c)->width; \
- __entry->center_freq1 = (c)->center_freq1; \
+#define CHANDEF_ASSIGN(c) \
+ __entry->control_freq = (c)->chan ? (c)->chan->center_freq : 0; \
+ __entry->chan_width = (c)->width; \
+ __entry->center_freq1 = (c)->center_freq1; \
__entry->center_freq2 = (c)->center_freq2;
#define CHANDEF_PR_FMT " control:%d MHz width:%d center: %d/%d MHz"
-#define CHANDEF_PR_ARG __entry->control_freq, __entry->chan_width, \
+#define CHANDEF_PR_ARG __entry->control_freq, __entry->chan_width, \
__entry->center_freq1, __entry->center_freq2
-#define CHANCTX_ENTRY CHANDEF_ENTRY \
- __field(u8, rx_chains_static) \
+#define CHANCTX_ENTRY CHANDEF_ENTRY \
+ __field(u8, rx_chains_static) \
__field(u8, rx_chains_dynamic)
-#define CHANCTX_ASSIGN CHANDEF_ASSIGN(&ctx->conf.def) \
- __entry->rx_chains_static = ctx->conf.rx_chains_static; \
+#define CHANCTX_ASSIGN CHANDEF_ASSIGN(&ctx->conf.def) \
+ __entry->rx_chains_static = ctx->conf.rx_chains_static; \
__entry->rx_chains_dynamic = ctx->conf.rx_chains_dynamic
#define CHANCTX_PR_FMT CHANDEF_PR_FMT " chains:%d/%d"
-#define CHANCTX_PR_ARG CHANDEF_PR_ARG, \
+#define CHANCTX_PR_ARG CHANDEF_PR_ARG, \
__entry->rx_chains_static, __entry->rx_chains_dynamic
@@ -286,8 +286,7 @@ TRACE_EVENT(drv_config,
__field(u16, listen_interval)
__field(u8, long_frame_max_tx_count)
__field(u8, short_frame_max_tx_count)
- __field(int, center_freq)
- __field(int, channel_type)
+ CHANDEF_ENTRY
__field(int, smps)
),
@@ -303,15 +302,13 @@ TRACE_EVENT(drv_config,
local->hw.conf.long_frame_max_tx_count;
__entry->short_frame_max_tx_count =
local->hw.conf.short_frame_max_tx_count;
- __entry->center_freq = local->hw.conf.channel ?
- local->hw.conf.channel->center_freq : 0;
- __entry->channel_type = local->hw.conf.channel_type;
+ CHANDEF_ASSIGN(&local->hw.conf.chandef)
__entry->smps = local->hw.conf.smps_mode;
),
TP_printk(
- LOCAL_PR_FMT " ch:%#x freq:%d",
- LOCAL_PR_ARG, __entry->changed, __entry->center_freq
+ LOCAL_PR_FMT " ch:%#x" CHANDEF_PR_FMT,
+ LOCAL_PR_ARG, __entry->changed, CHANDEF_PR_ARG
)
);
@@ -359,8 +356,7 @@ TRACE_EVENT(drv_bss_info_changed,
__dynamic_array(u8, ssid, info->ssid_len);
__field(bool, hidden_ssid);
__field(int, txpower)
- __field(u8, p2p_ctwindow)
- __field(bool, p2p_oppps)
+ __field(u8, p2p_oppps_ctwindow)
),
TP_fast_assign(
@@ -400,8 +396,7 @@ TRACE_EVENT(drv_bss_info_changed,
memcpy(__get_dynamic_array(ssid), info->ssid, info->ssid_len);
__entry->hidden_ssid = info->hidden_ssid;
__entry->txpower = info->txpower;
- __entry->p2p_ctwindow = info->p2p_ctwindow;
- __entry->p2p_oppps = info->p2p_oppps;
+ __entry->p2p_oppps_ctwindow = info->p2p_noa_attr.oppps_ctwindow;
),
TP_printk(
@@ -995,23 +990,23 @@ TRACE_EVENT(drv_channel_switch,
TP_STRUCT__entry(
LOCAL_ENTRY
+ CHANDEF_ENTRY
__field(u64, timestamp)
__field(bool, block_tx)
- __field(u16, freq)
__field(u8, count)
),
TP_fast_assign(
LOCAL_ASSIGN;
+ CHANDEF_ASSIGN(&ch_switch->chandef)
__entry->timestamp = ch_switch->timestamp;
__entry->block_tx = ch_switch->block_tx;
- __entry->freq = ch_switch->channel->center_freq;
__entry->count = ch_switch->count;
),
TP_printk(
- LOCAL_PR_FMT " new freq:%u count:%d",
- LOCAL_PR_ARG, __entry->freq, __entry->count
+ LOCAL_PR_FMT " new " CHANDEF_PR_FMT " count:%d",
+ LOCAL_PR_ARG, CHANDEF_PR_ARG, __entry->count
)
);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 9e67cc97b87b..9972e07a2f96 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -48,15 +48,15 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
/* assume HW handles this */
- if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
+ if (tx->rate.flags & IEEE80211_TX_RC_MCS)
return 0;
/* uh huh? */
- if (WARN_ON_ONCE(info->control.rates[0].idx < 0))
+ if (WARN_ON_ONCE(tx->rate.idx < 0))
return 0;
sband = local->hw.wiphy->bands[info->band];
- txrate = &sband->bitrates[info->control.rates[0].idx];
+ txrate = &sband->bitrates[tx->rate.idx];
erp = txrate->flags & IEEE80211_RATE_ERP_G;
@@ -617,11 +617,9 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
struct ieee80211_hdr *hdr = (void *)tx->skb->data;
struct ieee80211_supported_band *sband;
- struct ieee80211_rate *rate;
- int i;
u32 len;
- bool inval = false, rts = false, short_preamble = false;
struct ieee80211_tx_rate_control txrc;
+ struct ieee80211_sta_rates *ratetbl = NULL;
bool assoc = false;
memset(&txrc, 0, sizeof(txrc));
@@ -642,18 +640,23 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
txrc.max_rate_idx = -1;
else
txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1;
- memcpy(txrc.rate_idx_mcs_mask,
- tx->sdata->rc_rateidx_mcs_mask[info->band],
- sizeof(txrc.rate_idx_mcs_mask));
+
+ if (tx->sdata->rc_has_mcs_mask[info->band])
+ txrc.rate_idx_mcs_mask =
+ tx->sdata->rc_rateidx_mcs_mask[info->band];
+
txrc.bss = (tx->sdata->vif.type == NL80211_IFTYPE_AP ||
tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
tx->sdata->vif.type == NL80211_IFTYPE_ADHOC);
/* set up RTS protection if desired */
if (len > tx->local->hw.wiphy->rts_threshold) {
- txrc.rts = rts = true;
+ txrc.rts = true;
}
+ info->control.use_rts = txrc.rts;
+ info->control.use_cts_prot = tx->sdata->vif.bss_conf.use_cts_prot;
+
/*
* Use short preamble if the BSS can handle it, but not for
* management frames unless we know the receiver can handle
@@ -663,7 +666,9 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
if (tx->sdata->vif.bss_conf.use_short_preamble &&
(ieee80211_is_data(hdr->frame_control) ||
(tx->sta && test_sta_flag(tx->sta, WLAN_STA_SHORT_PREAMBLE))))
- txrc.short_preamble = short_preamble = true;
+ txrc.short_preamble = true;
+
+ info->control.short_preamble = txrc.short_preamble;
if (tx->sta)
assoc = test_sta_flag(tx->sta, WLAN_STA_ASSOC);
@@ -687,16 +692,38 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
*/
rate_control_get_rate(tx->sdata, tx->sta, &txrc);
- if (unlikely(info->control.rates[0].idx < 0))
- return TX_DROP;
+ if (tx->sta && !info->control.skip_table)
+ ratetbl = rcu_dereference(tx->sta->sta.rates);
+
+ if (unlikely(info->control.rates[0].idx < 0)) {
+ if (ratetbl) {
+ struct ieee80211_tx_rate rate = {
+ .idx = ratetbl->rate[0].idx,
+ .flags = ratetbl->rate[0].flags,
+ .count = ratetbl->rate[0].count
+ };
+
+ if (ratetbl->rate[0].idx < 0)
+ return TX_DROP;
+
+ tx->rate = rate;
+ } else {
+ return TX_DROP;
+ }
+ } else {
+ tx->rate = info->control.rates[0];
+ }
if (txrc.reported_rate.idx < 0) {
- txrc.reported_rate = info->control.rates[0];
+ txrc.reported_rate = tx->rate;
if (tx->sta && ieee80211_is_data(hdr->frame_control))
tx->sta->last_tx_rate = txrc.reported_rate;
} else if (tx->sta)
tx->sta->last_tx_rate = txrc.reported_rate;
+ if (ratetbl)
+ return TX_CONTINUE;
+
if (unlikely(!info->control.rates[0].count))
info->control.rates[0].count = 1;
@@ -704,91 +731,6 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
(info->flags & IEEE80211_TX_CTL_NO_ACK)))
info->control.rates[0].count = 1;
- if (is_multicast_ether_addr(hdr->addr1)) {
- /*
- * XXX: verify the rate is in the basic rateset
- */
- return TX_CONTINUE;
- }
-
- /*
- * set up the RTS/CTS rate as the fastest basic rate
- * that is not faster than the data rate
- *
- * XXX: Should this check all retry rates?
- */
- if (!(info->control.rates[0].flags & IEEE80211_TX_RC_MCS)) {
- s8 baserate = 0;
-
- rate = &sband->bitrates[info->control.rates[0].idx];
-
- for (i = 0; i < sband->n_bitrates; i++) {
- /* must be a basic rate */
- if (!(tx->sdata->vif.bss_conf.basic_rates & BIT(i)))
- continue;
- /* must not be faster than the data rate */
- if (sband->bitrates[i].bitrate > rate->bitrate)
- continue;
- /* maximum */
- if (sband->bitrates[baserate].bitrate <
- sband->bitrates[i].bitrate)
- baserate = i;
- }
-
- info->control.rts_cts_rate_idx = baserate;
- }
-
- for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
- /*
- * make sure there's no valid rate following
- * an invalid one, just in case drivers don't
- * take the API seriously to stop at -1.
- */
- if (inval) {
- info->control.rates[i].idx = -1;
- continue;
- }
- if (info->control.rates[i].idx < 0) {
- inval = true;
- continue;
- }
-
- /*
- * For now assume MCS is already set up correctly, this
- * needs to be fixed.
- */
- if (info->control.rates[i].flags & IEEE80211_TX_RC_MCS) {
- WARN_ON(info->control.rates[i].idx > 76);
- continue;
- }
-
- /* set up RTS protection if desired */
- if (rts)
- info->control.rates[i].flags |=
- IEEE80211_TX_RC_USE_RTS_CTS;
-
- /* RC is busted */
- if (WARN_ON_ONCE(info->control.rates[i].idx >=
- sband->n_bitrates)) {
- info->control.rates[i].idx = -1;
- continue;
- }
-
- rate = &sband->bitrates[info->control.rates[i].idx];
-
- /* set up short preamble */
- if (short_preamble &&
- rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
- info->control.rates[i].flags |=
- IEEE80211_TX_RC_USE_SHORT_PREAMBLE;
-
- /* set up G protection */
- if (!rts && tx->sdata->vif.bss_conf.use_cts_prot &&
- rate->flags & IEEE80211_RATE_ERP_G)
- info->control.rates[i].flags |=
- IEEE80211_TX_RC_USE_CTS_PROTECT;
- }
-
return TX_CONTINUE;
}
@@ -1709,7 +1651,7 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
if (chanctx_conf)
chan = chanctx_conf->def.chan;
else if (!local->use_chanctx)
- chan = local->_oper_channel;
+ chan = local->_oper_chandef.chan;
else
goto fail_rcu;
@@ -1843,7 +1785,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
* This is the exception! WDS style interfaces are prohibited
* when channel contexts are in used so this must be valid
*/
- band = local->hw.conf.channel->band;
+ band = local->hw.conf.chandef.chan->band;
break;
#ifdef CONFIG_MAC80211_MESH
case NL80211_IFTYPE_MESH_POINT:
@@ -2442,14 +2384,17 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_hdr *hdr;
- struct sk_buff *presp = rcu_dereference(ifibss->presp);
+ struct beacon_data *presp = rcu_dereference(ifibss->presp);
if (!presp)
goto out;
- skb = skb_copy(presp, GFP_ATOMIC);
+ skb = dev_alloc_skb(local->tx_headroom + presp->head_len);
if (!skb)
goto out;
+ skb_reserve(skb, local->tx_headroom);
+ memcpy(skb_put(skb, presp->head_len), presp->head,
+ presp->head_len);
hdr = (struct ieee80211_hdr *) skb->data;
hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
@@ -2499,8 +2444,6 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
txrc.max_rate_idx = -1;
else
txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1;
- memcpy(txrc.rate_idx_mcs_mask, sdata->rc_rateidx_mcs_mask[band],
- sizeof(txrc.rate_idx_mcs_mask));
txrc.bss = true;
rate_control_get_rate(sdata, NULL, &txrc);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index a7368870c8ee..3f87fa468b1f 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -485,7 +485,8 @@ int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue)
return true;
spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
- ret = !!local->queue_stop_reasons[queue];
+ ret = test_bit(IEEE80211_QUEUE_STOP_REASON_DRIVER,
+ &local->queue_stop_reasons[queue]);
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
return ret;
}
@@ -660,7 +661,7 @@ void ieee80211_queue_delayed_work(struct ieee80211_hw *hw,
}
EXPORT_SYMBOL(ieee80211_queue_delayed_work);
-u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
+u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, bool action,
struct ieee802_11_elems *elems,
u64 filter, u32 crc)
{
@@ -668,6 +669,7 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
u8 *pos = start;
bool calc_crc = filter != 0;
DECLARE_BITMAP(seen_elems, 256);
+ const u8 *ie;
bitmap_zero(seen_elems, 256);
memset(elems, 0, sizeof(*elems));
@@ -715,6 +717,12 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
case WLAN_EID_COUNTRY:
case WLAN_EID_PWR_CONSTRAINT:
case WLAN_EID_TIMEOUT_INTERVAL:
+ case WLAN_EID_SECONDARY_CHANNEL_OFFSET:
+ case WLAN_EID_WIDE_BW_CHANNEL_SWITCH:
+ /*
+ * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible
+ * that if the content gets bigger it might be needed more than once
+ */
if (test_bit(id, seen_elems)) {
elems->parse_error = true;
left -= elen;
@@ -738,17 +746,11 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
elems->supp_rates = pos;
elems->supp_rates_len = elen;
break;
- case WLAN_EID_FH_PARAMS:
- elems->fh_params = pos;
- elems->fh_params_len = elen;
- break;
case WLAN_EID_DS_PARAMS:
- elems->ds_params = pos;
- elems->ds_params_len = elen;
- break;
- case WLAN_EID_CF_PARAMS:
- elems->cf_params = pos;
- elems->cf_params_len = elen;
+ if (elen >= 1)
+ elems->ds_params = pos;
+ else
+ elem_parse_failed = true;
break;
case WLAN_EID_TIM:
if (elen >= sizeof(struct ieee80211_tim_ie)) {
@@ -757,10 +759,6 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
} else
elem_parse_failed = true;
break;
- case WLAN_EID_IBSS_PARAMS:
- elems->ibss_params = pos;
- elems->ibss_params_len = elen;
- break;
case WLAN_EID_CHALLENGE:
elems->challenge = pos;
elems->challenge_len = elen;
@@ -790,8 +788,10 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
elems->rsn_len = elen;
break;
case WLAN_EID_ERP_INFO:
- elems->erp_info = pos;
- elems->erp_info_len = elen;
+ if (elen >= 1)
+ elems->erp_info = pos;
+ else
+ elem_parse_failed = true;
break;
case WLAN_EID_EXT_SUPP_RATES:
elems->ext_supp_rates = pos;
@@ -870,12 +870,47 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
}
elems->ch_switch_ie = (void *)pos;
break;
- case WLAN_EID_QUIET:
- if (!elems->quiet_elem) {
- elems->quiet_elem = pos;
- elems->quiet_elem_len = elen;
+ case WLAN_EID_EXT_CHANSWITCH_ANN:
+ if (elen != sizeof(struct ieee80211_ext_chansw_ie)) {
+ elem_parse_failed = true;
+ break;
+ }
+ elems->ext_chansw_ie = (void *)pos;
+ break;
+ case WLAN_EID_SECONDARY_CHANNEL_OFFSET:
+ if (elen != sizeof(struct ieee80211_sec_chan_offs_ie)) {
+ elem_parse_failed = true;
+ break;
+ }
+ elems->sec_chan_offs = (void *)pos;
+ break;
+ case WLAN_EID_WIDE_BW_CHANNEL_SWITCH:
+ if (!action ||
+ elen != sizeof(*elems->wide_bw_chansw_ie)) {
+ elem_parse_failed = true;
+ break;
+ }
+ elems->wide_bw_chansw_ie = (void *)pos;
+ break;
+ case WLAN_EID_CHANNEL_SWITCH_WRAPPER:
+ if (action) {
+ elem_parse_failed = true;
+ break;
+ }
+ /*
+ * This is a bit tricky, but as we only care about
+ * the wide bandwidth channel switch element, so
+ * just parse it out manually.
+ */
+ ie = cfg80211_find_ie(WLAN_EID_WIDE_BW_CHANNEL_SWITCH,
+ pos, elen);
+ if (ie) {
+ if (ie[1] == sizeof(*elems->wide_bw_chansw_ie))
+ elems->wide_bw_chansw_ie =
+ (void *)(ie + 2);
+ else
+ elem_parse_failed = true;
}
- elems->num_of_quiet_elem++;
break;
case WLAN_EID_COUNTRY:
elems->country_elem = pos;
@@ -889,8 +924,10 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
elems->pwr_constr_elem = pos;
break;
case WLAN_EID_TIMEOUT_INTERVAL:
- elems->timeout_int = pos;
- elems->timeout_int_len = elen;
+ if (elen >= sizeof(struct ieee80211_timeout_interval_ie))
+ elems->timeout_int = (void *)pos;
+ else
+ elem_parse_failed = true;
break;
default:
break;
@@ -911,12 +948,6 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
return crc;
}
-void ieee802_11_parse_elems(u8 *start, size_t len,
- struct ieee802_11_elems *elems)
-{
- ieee802_11_parse_elems_crc(start, len, elems, 0, 0);
-}
-
void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
bool bss_notify)
{
@@ -1474,6 +1505,8 @@ int ieee80211_reconfig(struct ieee80211_local *local)
/* add interfaces */
sdata = rtnl_dereference(local->monitor_sdata);
if (sdata) {
+ /* in HW restart it exists already */
+ WARN_ON(local->resuming);
res = drv_add_interface(local, sdata);
if (WARN_ON(res)) {
rcu_assign_pointer(local->monitor_sdata, NULL);
@@ -1663,6 +1696,9 @@ int ieee80211_reconfig(struct ieee80211_local *local)
local->in_reconfig = false;
barrier();
+ if (local->monitors == local->open_count && local->monitors > 0)
+ ieee80211_add_virtual_monitor(local);
+
/*
* Clear the WLAN_STA_BLOCK_BA flag so new aggregation
* sessions can be established after a resume.
@@ -2056,7 +2092,7 @@ int ieee80211_ave_rssi(struct ieee80211_vif *vif)
/* non-managed type inferfaces */
return 0;
}
- return ifmgd->ave_beacon_signal;
+ return ifmgd->ave_beacon_signal / 16;
}
EXPORT_SYMBOL_GPL(ieee80211_ave_rssi);
@@ -2171,8 +2207,7 @@ void ieee80211_dfs_radar_detected_work(struct work_struct *work)
/* currently not handled */
WARN_ON(1);
else {
- cfg80211_chandef_create(&chandef, local->hw.conf.channel,
- local->hw.conf.channel_type);
+ chandef = local->hw.conf.chandef;
cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL);
}
}
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