aboutsummaryrefslogtreecommitdiffstats
path: root/net/mac80211
diff options
context:
space:
mode:
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/Kconfig4
-rw-r--r--net/mac80211/agg-rx.c7
-rw-r--r--net/mac80211/agg-tx.c23
-rw-r--r--net/mac80211/cfg.c116
-rw-r--r--net/mac80211/chan.c3
-rw-r--r--net/mac80211/debugfs.c6
-rw-r--r--net/mac80211/debugfs_netdev.c122
-rw-r--r--net/mac80211/driver-ops.h67
-rw-r--r--net/mac80211/driver-trace.h274
-rw-r--r--net/mac80211/ht.c5
-rw-r--r--net/mac80211/ibss.c21
-rw-r--r--net/mac80211/ieee80211_i.h17
-rw-r--r--net/mac80211/iface.c9
-rw-r--r--net/mac80211/key.h1
-rw-r--r--net/mac80211/main.c88
-rw-r--r--net/mac80211/mesh.c4
-rw-r--r--net/mac80211/mlme.c144
-rw-r--r--net/mac80211/offchannel.c68
-rw-r--r--net/mac80211/rc80211_minstrel_ht.c60
-rw-r--r--net/mac80211/rc80211_pid.h3
-rw-r--r--net/mac80211/rx.c130
-rw-r--r--net/mac80211/scan.c138
-rw-r--r--net/mac80211/sta_info.c3
-rw-r--r--net/mac80211/sta_info.h6
-rw-r--r--net/mac80211/status.c10
-rw-r--r--net/mac80211/tx.c194
-rw-r--r--net/mac80211/util.c6
-rw-r--r--net/mac80211/work.c122
-rw-r--r--net/mac80211/wpa.c39
29 files changed, 1117 insertions, 573 deletions
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index c766056..513f85c 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -17,7 +17,7 @@ comment "CFG80211 needs to be enabled for MAC80211"
if MAC80211 != n
config MAC80211_HAS_RC
- def_bool n
+ bool
config MAC80211_RC_PID
bool "PID controller based rate control algorithm" if EXPERT
@@ -78,7 +78,7 @@ config MAC80211_RC_DEFAULT
endif
comment "Some wireless drivers require a rate control algorithm"
- depends on MAC80211_HAS_RC=n
+ depends on MAC80211 && MAC80211_HAS_RC=n
config MAC80211_MESH
bool "Enable mac80211 mesh networking (pre-802.11s) support"
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 227ca82..0c9d0c0 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -76,7 +76,7 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
#endif /* CONFIG_MAC80211_HT_DEBUG */
if (drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_STOP,
- &sta->sta, tid, NULL))
+ &sta->sta, tid, NULL, 0))
printk(KERN_DEBUG "HW problem - can not stop rx "
"aggregation for tid %d\n", tid);
@@ -232,6 +232,9 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
if (buf_size == 0)
buf_size = IEEE80211_MAX_AMPDU_BUF;
+ /* make sure the size doesn't exceed the maximum supported by the hw */
+ if (buf_size > local->hw.max_rx_aggregation_subframes)
+ buf_size = local->hw.max_rx_aggregation_subframes;
/* examine state machine */
mutex_lock(&sta->ampdu_mlme.mtx);
@@ -287,7 +290,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
}
ret = drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_START,
- &sta->sta, tid, &start_seq_num);
+ &sta->sta, tid, &start_seq_num, 0);
#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret);
#endif /* CONFIG_MAC80211_HT_DEBUG */
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 9cc472c..63d852c 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -190,7 +190,7 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
ret = drv_ampdu_action(local, sta->sdata,
IEEE80211_AMPDU_TX_STOP,
- &sta->sta, tid, NULL);
+ &sta->sta, tid, NULL, 0);
/* HW shall not deny going back to legacy */
if (WARN_ON(ret)) {
@@ -311,7 +311,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
start_seq_num = sta->tid_seq[tid] >> 4;
ret = drv_ampdu_action(local, sdata, IEEE80211_AMPDU_TX_START,
- &sta->sta, tid, &start_seq_num);
+ &sta->sta, tid, &start_seq_num, 0);
if (ret) {
#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "BA request denied - HW unavailable for"
@@ -342,7 +342,8 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
/* send AddBA request */
ieee80211_send_addba_request(sdata, sta->sta.addr, tid,
tid_tx->dialog_token, start_seq_num,
- 0x40, tid_tx->timeout);
+ local->hw.max_tx_aggregation_subframes,
+ tid_tx->timeout);
}
int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
@@ -487,7 +488,8 @@ static void ieee80211_agg_tx_operational(struct ieee80211_local *local,
drv_ampdu_action(local, sta->sdata,
IEEE80211_AMPDU_TX_OPERATIONAL,
- &sta->sta, tid, NULL);
+ &sta->sta, tid, NULL,
+ sta->ampdu_mlme.tid_tx[tid]->buf_size);
/*
* synchronize with TX path, while splicing the TX path
@@ -742,9 +744,11 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
{
struct tid_ampdu_tx *tid_tx;
u16 capab, tid;
+ u8 buf_size;
capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab);
tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
+ buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6;
mutex_lock(&sta->ampdu_mlme.mtx);
@@ -767,12 +771,23 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
if (le16_to_cpu(mgmt->u.action.u.addba_resp.status)
== WLAN_STATUS_SUCCESS) {
+ /*
+ * IEEE 802.11-2007 7.3.1.14:
+ * In an ADDBA Response frame, when the Status Code field
+ * is set to 0, the Buffer Size subfield is set to a value
+ * of at least 1.
+ */
+ if (!buf_size)
+ goto out;
+
if (test_and_set_bit(HT_AGG_STATE_RESPONSE_RECEIVED,
&tid_tx->state)) {
/* ignore duplicate response */
goto out;
}
+ tid_tx->buf_size = buf_size;
+
if (test_bit(HT_AGG_STATE_DRV_READY, &tid_tx->state))
ieee80211_agg_tx_operational(local, sta, tid);
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 9cd73b1..3342135 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -316,6 +316,17 @@ static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
return 0;
}
+static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx)
+{
+ if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
+ struct ieee80211_supported_band *sband;
+ sband = sta->local->hw.wiphy->bands[
+ sta->local->hw.conf.channel->band];
+ rate->legacy = sband->bitrates[idx].bitrate;
+ } else
+ rate->mcs = idx;
+}
+
static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
@@ -330,6 +341,7 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
STATION_INFO_TX_RETRIES |
STATION_INFO_TX_FAILED |
STATION_INFO_TX_BITRATE |
+ STATION_INFO_RX_BITRATE |
STATION_INFO_RX_DROP_MISC;
sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
@@ -355,15 +367,16 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
+ rate_idx_to_bitrate(&sinfo->txrate, sta, sta->last_tx_rate.idx);
- if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
- struct ieee80211_supported_band *sband;
- sband = sta->local->hw.wiphy->bands[
- sta->local->hw.conf.channel->band];
- sinfo->txrate.legacy =
- sband->bitrates[sta->last_tx_rate.idx].bitrate;
- } else
- sinfo->txrate.mcs = sta->last_tx_rate.idx;
+ sinfo->rxrate.flags = 0;
+ if (sta->last_rx_rate_flag & RX_FLAG_HT)
+ sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS;
+ if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
+ sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
+ if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
+ sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
+ rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx);
if (ieee80211_vif_is_mesh(&sdata->vif)) {
#ifdef CONFIG_MAC80211_MESH
@@ -821,6 +834,10 @@ static int ieee80211_change_station(struct wiphy *wiphy,
rcu_read_unlock();
+ if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+ params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
+ ieee80211_recalc_ps(local, -1);
+
return 0;
}
@@ -1215,6 +1232,9 @@ static int ieee80211_set_channel(struct wiphy *wiphy,
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata = NULL;
+ struct ieee80211_channel *old_oper;
+ enum nl80211_channel_type old_oper_type;
+ enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT;
if (netdev)
sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
@@ -1232,13 +1252,23 @@ static int ieee80211_set_channel(struct wiphy *wiphy,
break;
}
- local->oper_channel = chan;
+ if (sdata)
+ old_vif_oper_type = sdata->vif.bss_conf.channel_type;
+ old_oper_type = local->_oper_channel_type;
if (!ieee80211_set_channel_type(local, sdata, channel_type))
return -EBUSY;
- ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
- if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR)
+ old_oper = local->oper_channel;
+ local->oper_channel = chan;
+
+ /* Update driver if changes were actually made. */
+ if ((old_oper != local->oper_channel) ||
+ (old_oper_type != local->_oper_channel_type))
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
+
+ if ((sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR) &&
+ old_vif_oper_type != sdata->vif.bss_conf.channel_type)
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
return 0;
@@ -1274,8 +1304,11 @@ static int ieee80211_scan(struct wiphy *wiphy,
case NL80211_IFTYPE_P2P_GO:
if (sdata->local->ops->hw_scan)
break;
- /* FIXME: implement NoA while scanning in software */
- return -EOPNOTSUPP;
+ /*
+ * FIXME: implement NoA while scanning in software,
+ * for now fall through to allow scanning only when
+ * beaconing hasn't been configured yet
+ */
case NL80211_IFTYPE_AP:
if (sdata->u.ap.beacon)
return -EOPNOTSUPP;
@@ -1784,6 +1817,33 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
*cookie = (unsigned long) skb;
+ if (is_offchan && local->ops->offchannel_tx) {
+ int ret;
+
+ IEEE80211_SKB_CB(skb)->band = chan->band;
+
+ mutex_lock(&local->mtx);
+
+ if (local->hw_offchan_tx_cookie) {
+ mutex_unlock(&local->mtx);
+ return -EBUSY;
+ }
+
+ /* TODO: bitrate control, TX processing? */
+ ret = drv_offchannel_tx(local, skb, chan, channel_type, wait);
+
+ if (ret == 0)
+ local->hw_offchan_tx_cookie = *cookie;
+ mutex_unlock(&local->mtx);
+
+ /*
+ * Allow driver to return 1 to indicate it wants to have the
+ * frame transmitted with a remain_on_channel + regular TX.
+ */
+ if (ret != 1)
+ return ret;
+ }
+
if (is_offchan && local->ops->remain_on_channel) {
unsigned int duration;
int ret;
@@ -1847,6 +1907,7 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
wk->chan = chan;
+ wk->chan_type = channel_type;
wk->sdata = sdata;
wk->done = ieee80211_offchan_tx_done;
wk->offchan_tx.frame = skb;
@@ -1869,6 +1930,18 @@ static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
mutex_lock(&local->mtx);
+ if (local->ops->offchannel_tx_cancel_wait &&
+ local->hw_offchan_tx_cookie == cookie) {
+ ret = drv_offchannel_tx_cancel_wait(local);
+
+ if (!ret)
+ local->hw_offchan_tx_cookie = 0;
+
+ mutex_unlock(&local->mtx);
+
+ return ret;
+ }
+
if (local->ops->cancel_remain_on_channel) {
cookie ^= 2;
ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
@@ -1939,6 +2012,21 @@ static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
return drv_get_antenna(local, tx_ant, rx_ant);
}
+static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+
+ return drv_set_ringparam(local, tx, rx);
+}
+
+static void ieee80211_get_ringparam(struct wiphy *wiphy,
+ u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+
+ drv_get_ringparam(local, tx, tx_max, rx, rx_max);
+}
+
struct cfg80211_ops mac80211_config_ops = {
.add_virtual_intf = ieee80211_add_iface,
.del_virtual_intf = ieee80211_del_iface,
@@ -1996,4 +2084,6 @@ struct cfg80211_ops mac80211_config_ops = {
.mgmt_frame_register = ieee80211_mgmt_frame_register,
.set_antenna = ieee80211_set_antenna,
.get_antenna = ieee80211_get_antenna,
+ .set_ringparam = ieee80211_set_ringparam,
+ .get_ringparam = ieee80211_get_ringparam,
};
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 5b24740..889c3e9 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -77,6 +77,9 @@ bool ieee80211_set_channel_type(struct ieee80211_local *local,
switch (tmp->vif.bss_conf.channel_type) {
case NL80211_CHAN_NO_HT:
case NL80211_CHAN_HT20:
+ if (superchan > tmp->vif.bss_conf.channel_type)
+ break;
+
superchan = tmp->vif.bss_conf.channel_type;
break;
case NL80211_CHAN_HT40PLUS:
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 1f02e59..51f0d78 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -60,6 +60,10 @@ static const struct file_operations name## _ops = { \
debugfs_create_file(#name, mode, phyd, local, &name## _ops);
+DEBUGFS_READONLY_FILE(user_power, "%d",
+ local->user_power_level);
+DEBUGFS_READONLY_FILE(power, "%d",
+ local->hw.conf.power_level);
DEBUGFS_READONLY_FILE(frequency, "%d",
local->hw.conf.channel->center_freq);
DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
@@ -391,6 +395,8 @@ void debugfs_hw_add(struct ieee80211_local *local)
DEBUGFS_ADD(uapsd_queues);
DEBUGFS_ADD(uapsd_max_sp_len);
DEBUGFS_ADD(channel_type);
+ DEBUGFS_ADD(user_power);
+ DEBUGFS_ADD(power);
statsd = debugfs_create_dir("statistics", phyd);
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 2dabdf7..dacace6 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -36,7 +36,7 @@ static ssize_t ieee80211_if_read(
ret = (*format)(sdata, buf, sizeof(buf));
read_unlock(&dev_base_lock);
- if (ret != -EINVAL)
+ if (ret >= 0)
ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
return ret;
@@ -81,6 +81,8 @@ static ssize_t ieee80211_if_fmt_##name( \
IEEE80211_IF_FMT(name, field, "%d\n")
#define IEEE80211_IF_FMT_HEX(name, field) \
IEEE80211_IF_FMT(name, field, "%#x\n")
+#define IEEE80211_IF_FMT_LHEX(name, field) \
+ IEEE80211_IF_FMT(name, field, "%#lx\n")
#define IEEE80211_IF_FMT_SIZE(name, field) \
IEEE80211_IF_FMT(name, field, "%zd\n")
@@ -145,6 +147,9 @@ IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[IEEE80211_BAND_2GHZ],
HEX);
IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ],
HEX);
+IEEE80211_IF_FILE(flags, flags, HEX);
+IEEE80211_IF_FILE(state, state, LHEX);
+IEEE80211_IF_FILE(channel_type, vif.bss_conf.channel_type, DEC);
/* STA attributes */
IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
@@ -216,6 +221,104 @@ static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
__IEEE80211_IF_FILE_W(smps);
+static ssize_t ieee80211_if_fmt_tkip_mic_test(
+ const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
+{
+ return -EOPNOTSUPP;
+}
+
+static int hwaddr_aton(const char *txt, u8 *addr)
+{
+ int i;
+
+ for (i = 0; i < ETH_ALEN; i++) {
+ int a, b;
+
+ a = hex_to_bin(*txt++);
+ if (a < 0)
+ return -1;
+ b = hex_to_bin(*txt++);
+ if (b < 0)
+ return -1;
+ *addr++ = (a << 4) | b;
+ if (i < 5 && *txt++ != ':')
+ return -1;
+ }
+
+ return 0;
+}
+
+static ssize_t ieee80211_if_parse_tkip_mic_test(
+ struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
+{
+ struct ieee80211_local *local = sdata->local;
+ u8 addr[ETH_ALEN];
+ struct sk_buff *skb;
+ struct ieee80211_hdr *hdr;
+ __le16 fc;
+
+ /*
+ * Assume colon-delimited MAC address with possible white space
+ * following.
+ */
+ if (buflen < 3 * ETH_ALEN - 1)
+ return -EINVAL;
+ if (hwaddr_aton(buf, addr) < 0)
+ return -EINVAL;
+
+ if (!ieee80211_sdata_running(sdata))
+ return -ENOTCONN;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
+ if (!skb)
+ return -ENOMEM;
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ hdr = (struct ieee80211_hdr *) skb_put(skb, 24);
+ memset(hdr, 0, 24);
+ fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
+
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_AP:
+ fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
+ /* DA BSSID SA */
+ memcpy(hdr->addr1, addr, ETH_ALEN);
+ memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
+ memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
+ break;
+ case NL80211_IFTYPE_STATION:
+ fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
+ /* BSSID SA DA */
+ if (sdata->vif.bss_conf.bssid == NULL) {
+ dev_kfree_skb(skb);
+ return -ENOTCONN;
+ }
+ memcpy(hdr->addr1, sdata->vif.bss_conf.bssid, ETH_ALEN);
+ memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
+ memcpy(hdr->addr3, addr, ETH_ALEN);
+ break;
+ default:
+ dev_kfree_skb(skb);
+ return -EOPNOTSUPP;
+ }
+ hdr->frame_control = fc;
+
+ /*
+ * Add some length to the test frame to make it look bit more valid.
+ * The exact contents does not matter since the recipient is required
+ * to drop this because of the Michael MIC failure.
+ */
+ memset(skb_put(skb, 50), 0, 50);
+
+ IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
+
+ ieee80211_tx_skb(sdata, skb);
+
+ return buflen;
+}
+
+__IEEE80211_IF_FILE_W(tkip_mic_test);
+
/* AP attributes */
IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
@@ -283,6 +386,9 @@ IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
static void add_sta_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(drop_unencrypted);
+ DEBUGFS_ADD(flags);
+ DEBUGFS_ADD(state);
+ DEBUGFS_ADD(channel_type);
DEBUGFS_ADD(rc_rateidx_mask_2ghz);
DEBUGFS_ADD(rc_rateidx_mask_5ghz);
@@ -291,22 +397,30 @@ static void add_sta_files(struct ieee80211_sub_if_data *sdata)
DEBUGFS_ADD(last_beacon);
DEBUGFS_ADD(ave_beacon);
DEBUGFS_ADD_MODE(smps, 0600);
+ DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
}
static void add_ap_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(drop_unencrypted);
+ DEBUGFS_ADD(flags);
+ DEBUGFS_ADD(state);
+ DEBUGFS_ADD(channel_type);
DEBUGFS_ADD(rc_rateidx_mask_2ghz);
DEBUGFS_ADD(rc_rateidx_mask_5ghz);
DEBUGFS_ADD(num_sta_ps);
DEBUGFS_ADD(dtim_count);
DEBUGFS_ADD(num_buffered_multicast);
+ DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
}
static void add_wds_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(drop_unencrypted);
+ DEBUGFS_ADD(flags);
+ DEBUGFS_ADD(state);
+ DEBUGFS_ADD(channel_type);
DEBUGFS_ADD(rc_rateidx_mask_2ghz);
DEBUGFS_ADD(rc_rateidx_mask_5ghz);
@@ -316,12 +430,18 @@ static void add_wds_files(struct ieee80211_sub_if_data *sdata)
static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(drop_unencrypted);
+ DEBUGFS_ADD(flags);
+ DEBUGFS_ADD(state);
+ DEBUGFS_ADD(channel_type);
DEBUGFS_ADD(rc_rateidx_mask_2ghz);
DEBUGFS_ADD(rc_rateidx_mask_5ghz);
}
static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
{
+ DEBUGFS_ADD(flags);
+ DEBUGFS_ADD(state);
+ DEBUGFS_ADD(channel_type);
}
#ifdef CONFIG_MAC80211_MESH
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 98d5899..9c0d62b 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -5,9 +5,9 @@
#include "ieee80211_i.h"
#include "driver-trace.h"
-static inline int drv_tx(struct ieee80211_local *local, struct sk_buff *skb)
+static inline void drv_tx(struct ieee80211_local *local, struct sk_buff *skb)
{
- return local->ops->tx(&local->hw, skb);
+ local->ops->tx(&local->hw, skb);
}
static inline int drv_start(struct ieee80211_local *local)
@@ -382,17 +382,17 @@ static inline int drv_ampdu_action(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
enum ieee80211_ampdu_mlme_action action,
struct ieee80211_sta *sta, u16 tid,
- u16 *ssn)
+ u16 *ssn, u8 buf_size)
{
int ret = -EOPNOTSUPP;
might_sleep();
- trace_drv_ampdu_action(local, sdata, action, sta, tid, ssn);
+ trace_drv_ampdu_action(local, sdata, action, sta, tid, ssn, buf_size);
if (local->ops->ampdu_action)
ret = local->ops->ampdu_action(&local->hw, &sdata->vif, action,
- sta, tid, ssn);
+ sta, tid, ssn, buf_size);
trace_drv_return_int(local, ret);
@@ -495,4 +495,61 @@ static inline int drv_cancel_remain_on_channel(struct ieee80211_local *local)
return ret;
}
+static inline int drv_offchannel_tx(struct ieee80211_local *local,
+ struct sk_buff *skb,
+ struct ieee80211_channel *chan,
+ enum nl80211_channel_type channel_type,
+ unsigned int wait)
+{
+ int ret;
+
+ might_sleep();
+
+ trace_drv_offchannel_tx(local, skb, chan, channel_type, wait);
+ ret = local->ops->offchannel_tx(&local->hw, skb, chan,
+ channel_type, wait);
+ trace_drv_return_int(local, ret);
+
+ return ret;
+}
+
+static inline int drv_offchannel_tx_cancel_wait(struct ieee80211_local *local)
+{
+ int ret;
+
+ might_sleep();
+
+ trace_drv_offchannel_tx_cancel_wait(local);
+ ret = local->ops->offchannel_tx_cancel_wait(&local->hw);
+ trace_drv_return_int(local, ret);
+
+ return ret;
+}
+
+static inline int drv_set_ringparam(struct ieee80211_local *local,
+ u32 tx, u32 rx)
+{
+ int ret = -ENOTSUPP;
+
+ might_sleep();
+
+ trace_drv_set_ringparam(local, tx, rx);
+ if (local->ops->set_ringparam)
+ ret = local->ops->set_ringparam(&local->hw, tx, rx);
+ trace_drv_return_int(local, ret);
+
+ return ret;
+}
+
+static inline void drv_get_ringparam(struct ieee80211_local *local,
+ u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
+{
+ might_sleep();
+
+ trace_drv_get_ringparam(local, tx, tx_max, rx, rx_max);
+ if (local->ops->get_ringparam)
+ local->ops->get_ringparam(&local->hw, tx, tx_max, rx, rx_max);
+ trace_drv_return_void(local);
+}
+
#endif /* __MAC80211_DRIVER_OPS */
diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index 49c8421..45aab80 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -9,6 +9,11 @@
#undef TRACE_EVENT
#define TRACE_EVENT(name, proto, ...) \
static inline void trace_ ## name(proto) {}
+#undef DECLARE_EVENT_CLASS
+#define DECLARE_EVENT_CLASS(...)
+#undef DEFINE_EVENT
+#define DEFINE_EVENT(evt_class, name, proto, ...) \
+static inline void trace_ ## name(proto) {}
#endif
#undef TRACE_SYSTEM
@@ -38,7 +43,7 @@ static inline void trace_ ## name(proto) {}
* Tracing for driver callbacks.
*/
-TRACE_EVENT(drv_return_void,
+DECLARE_EVENT_CLASS(local_only_evt,
TP_PROTO(struct ieee80211_local *local),
TP_ARGS(local),
TP_STRUCT__entry(
@@ -50,6 +55,11 @@ TRACE_EVENT(drv_return_void,
TP_printk(LOCAL_PR_FMT, LOCAL_PR_ARG)
);
+DEFINE_EVENT(local_only_evt, drv_return_void,
+ TP_PROTO(struct ieee80211_local *local),
+ TP_ARGS(local)
+);
+
TRACE_EVENT(drv_return_int,
TP_PROTO(struct ieee80211_local *local, int ret),
TP_ARGS(local, ret),
@@ -78,40 +88,14 @@ TRACE_EVENT(drv_return_u64,
TP_printk(LOCAL_PR_FMT " - %llu", LOCAL_PR_ARG, __entry->ret)
);
-TRACE_EVENT(drv_start,
+DEFINE_EVENT(local_only_evt, drv_start,
TP_PROTO(struct ieee80211_local *local),
-
- TP_ARGS(local),
-
- TP_STRUCT__entry(
- LOCAL_ENTRY
- ),
-
- TP_fast_assign(
- LOCAL_ASSIGN;
- ),
-
- TP_printk(
- LOCAL_PR_FMT, LOCAL_PR_ARG
- )
+ TP_ARGS(local)
);
-TRACE_EVENT(drv_stop,
+DEFINE_EVENT(local_only_evt, drv_stop,
TP_PROTO(struct ieee80211_local *local),
-
- TP_ARGS(local),
-
- TP_STRUCT__entry(
- LOCAL_ENTRY
- ),
-
- TP_fast_assign(
- LOCAL_ASSIGN;
- ),
-
- TP_printk(
- LOCAL_PR_FMT, LOCAL_PR_ARG
- )
+ TP_ARGS(local)
);
TRACE_EVENT(drv_add_interface,
@@ -439,40 +423,14 @@ TRACE_EVENT(drv_hw_scan,
)
);
-TRACE_EVENT(drv_sw_scan_start,
+DEFINE_EVENT(local_only_evt, drv_sw_scan_start,
TP_PROTO(struct ieee80211_local *local),
-
- TP_ARGS(local),
-
- TP_STRUCT__entry(
- LOCAL_ENTRY
- ),
-
- TP_fast_assign(
- LOCAL_ASSIGN;
- ),
-
- TP_printk(
- LOCAL_PR_FMT, LOCAL_PR_ARG
- )
+ TP_ARGS(local)
);
-TRACE_EVENT(drv_sw_scan_complete,
+DEFINE_EVENT(local_only_evt, drv_sw_scan_complete,
TP_PROTO(struct ieee80211_local *local),
-
- TP_ARGS(local),
-
- TP_STRUCT__entry(
- LOCAL_ENTRY
- ),
-
- TP_fast_assign(
- LOCAL_ASSIGN;
- ),
-
- TP_printk(
- LOCAL_PR_FMT, LOCAL_PR_ARG
- )
+ TP_ARGS(local)
);
TRACE_EVENT(drv_get_stats,
@@ -702,23 +660,9 @@ TRACE_EVENT(drv_conf_tx,
)
);
-TRACE_EVENT(drv_get_tsf,
+DEFINE_EVENT(local_only_evt, drv_get_tsf,
TP_PROTO(struct ieee80211_local *local),
-
- TP_ARGS(local),
-
- TP_STRUCT__entry(
- LOCAL_ENTRY
- ),
-
- TP_fast_assign(
- LOCAL_ASSIGN;
- ),
-
- TP_printk(
- LOCAL_PR_FMT,
- LOCAL_PR_ARG
- )
+ TP_ARGS(local)
);
TRACE_EVENT(drv_set_tsf,
@@ -742,41 +686,14 @@ TRACE_EVENT(drv_set_tsf,
)
);
-TRACE_EVENT(drv_reset_tsf,
+DEFINE_EVENT(local_only_evt, drv_reset_tsf,
TP_PROTO(struct ieee80211_local *local),
-
- TP_ARGS(local),
-
- TP_STRUCT__entry(
- LOCAL_ENTRY
- ),
-
- TP_fast_assign(
- LOCAL_ASSIGN;
- ),
-
- TP_printk(
- LOCAL_PR_FMT, LOCAL_PR_ARG
- )
+ TP_ARGS(local)
);
-TRACE_EVENT(drv_tx_last_beacon,
+DEFINE_EVENT(local_only_evt, drv_tx_last_beacon,
TP_PROTO(struct ieee80211_local *local),
-
- TP_ARGS(local),
-
- TP_STRUCT__entry(
- LOCAL_ENTRY
- ),
-
- TP_fast_assign(
- LOCAL_ASSIGN;
- ),
-
- TP_printk(
- LOCAL_PR_FMT,
- LOCAL_PR_ARG
- )
+ TP_ARGS(local)
);
TRACE_EVENT(drv_ampdu_action,
@@ -784,9 +701,9 @@ TRACE_EVENT(drv_ampdu_action,
struct ieee80211_sub_if_data *sdata,
enum ieee80211_ampdu_mlme_action action,
struct ieee80211_sta *sta, u16 tid,
- u16 *ssn),
+ u16 *ssn, u8 buf_size),
- TP_ARGS(local, sdata, action, sta, tid, ssn),
+ TP_ARGS(local, sdata, action, sta, tid, ssn, buf_size),
TP_STRUCT__entry(
LOCAL_ENTRY
@@ -794,6 +711,7 @@ TRACE_EVENT(drv_ampdu_action,
__field(u32, action)
__field(u16, tid)
__field(u16, ssn)
+ __field(u8, buf_size)
VIF_ENTRY
),
@@ -804,11 +722,13 @@ TRACE_EVENT(drv_ampdu_action,
__entry->action = action;
__entry->tid = tid;
__entry->ssn = ssn ? *ssn : 0;
+ __entry->buf_size = buf_size;
),
TP_printk(
- LOCAL_PR_FMT VIF_PR_FMT STA_PR_FMT " action:%d tid:%d",
- LOCAL_PR_ARG, VIF_PR_ARG, STA_PR_ARG, __entry->action, __entry->tid
+ LOCAL_PR_FMT VIF_PR_FMT STA_PR_FMT " action:%d tid:%d buf:%d",
+ LOCAL_PR_ARG, VIF_PR_ARG, STA_PR_ARG, __entry->action,
+ __entry->tid, __entry->buf_size
)
);
@@ -959,24 +879,96 @@ TRACE_EVENT(drv_remain_on_channel,
)
);
-TRACE_EVENT(drv_cancel_remain_on_channel,
+DEFINE_EVENT(local_only_evt, drv_cancel_remain_on_channel,
TP_PROTO(struct ieee80211_local *local),
+ TP_ARGS(local)
+);
- TP_ARGS(local),
+TRACE_EVENT(drv_offchannel_tx,
+ TP_PROTO(struct ieee80211_local *local, struct sk_buff *skb,
+ struct ieee80211_channel *chan,
+ enum nl80211_channel_type channel_type,
+ unsigned int wait),
+
+ TP_ARGS(local, skb, chan, channel_type, wait),
TP_STRUCT__entry(
LOCAL_ENTRY
+ __field(int, center_freq)
+ __field(int, channel_type)
+ __field(unsigned int, wait)
),
TP_fast_assign(
LOCAL_ASSIGN;
+ __entry->center_freq = chan->center_freq;
+ __entry->channel_type = channel_type;
+ __entry->wait = wait;
),
TP_printk(
- LOCAL_PR_FMT, LOCAL_PR_ARG
+ LOCAL_PR_FMT " freq:%dMHz, wait:%dms",
+ LOCAL_PR_ARG, __entry->center_freq, __entry->wait
+ )
+);
+
+TRACE_EVENT(drv_set_ringparam,
+ TP_PROTO(struct ieee80211_local *local, u32 tx, u32 rx),
+
+ TP_ARGS(local, tx, rx),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ __field(u32, tx)
+ __field(u32, rx)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ __entry->tx = tx;
+ __entry->rx = rx;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT " tx:%d rx %d",
+ LOCAL_PR_ARG, __entry->tx, __entry->rx
+ )
+);
+
+TRACE_EVENT(drv_get_ringparam,
+ TP_PROTO(struct ieee80211_local *local, u32 *tx, u32 *tx_max,
+ u32 *rx, u32 *rx_max),
+
+ TP_ARGS(local, tx, tx_max, rx, rx_max),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ __field(u32, tx)
+ __field(u32, tx_max)
+ __field(u32, rx)
+ __field(u32, rx_max)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ __entry->tx = *tx;
+ __entry->tx_max = *tx_max;
+ __entry->rx = *rx;
+ __entry->rx_max = *rx_max;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT " tx:%d tx_max %d rx %d rx_max %d",
+ LOCAL_PR_ARG,
+ __entry->tx, __entry->tx_max, __entry->rx, __entry->rx_max
)
);
+DEFINE_EVENT(local_only_evt, drv_offchannel_tx_cancel_wait,
+ TP_PROTO(struct ieee80211_local *local),
+ TP_ARGS(local)
+);
+
/*
* Tracing for API calls that drivers call.
*/
@@ -1069,23 +1061,9 @@ TRACE_EVENT(api_stop_tx_ba_cb,
)
);
-TRACE_EVENT(api_restart_hw,
+DEFINE_EVENT(local_only_evt, api_restart_hw,
TP_PROTO(struct ieee80211_local *local),
-
- TP_ARGS(local),
-
- TP_STRUCT__entry(
- LOCAL_ENTRY
- ),
-
- TP_fast_assign(
- LOCAL_ASSIGN;
- ),
-
- TP_printk(
- LOCAL_PR_FMT,
- LOCAL_PR_ARG
- )
+ TP_ARGS(local)
);
TRACE_EVENT(api_beacon_loss,
@@ -1214,40 +1192,14 @@ TRACE_EVENT(api_chswitch_done,
)
);
-TRACE_EVENT(api_ready_on_channel,
+DEFINE_EVENT(local_only_evt, api_ready_on_channel,
TP_PROTO(struct ieee80211_local *local),
-
- TP_ARGS(local),
-
- TP_STRUCT__entry(
- LOCAL_ENTRY
- ),
-
- TP_fast_assign(
- LOCAL_ASSIGN;
- ),
-
- TP_printk(
- LOCAL_PR_FMT, LOCAL_PR_ARG
- )
+ TP_ARGS(local)
);
-TRACE_EVENT(api_remain_on_channel_expired,
+DEFINE_EVENT(local_only_evt, api_remain_on_channel_expired,
TP_PROTO(struct ieee80211_local *local),
-
- TP_ARGS(local),
-
- TP_STRUCT__entry(
- LOCAL_ENTRY
- ),
-
- TP_fast_assign(
- LOCAL_ASSIGN;
- ),
-
- TP_printk(
- LOCAL_PR_FMT, LOCAL_PR_ARG
- )
+ TP_ARGS(local)
);
/*
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 75d679d..b9e4b9b 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -66,6 +66,9 @@ void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
/* own MCS TX capabilities */
tx_mcs_set_cap = sband->ht_cap.mcs.tx_params;
+ /* Copy peer MCS TX capabilities, the driver might need them. */
+ ht_cap->mcs.tx_params = ht_cap_ie->mcs.tx_params;
+
/* can we TX with MCS rates? */
if (!(tx_mcs_set_cap & IEEE80211_HT_MCS_TX_DEFINED))
return;
@@ -79,7 +82,7 @@ void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
max_tx_streams = IEEE80211_HT_MCS_TX_MAX_STREAMS;
/*
- * 802.11n D5.0 20.3.5 / 20.6 says:
+ * 802.11n-2009 20.3.5 / 20.6 says:
* - indices 0 to 7 and 32 are single spatial stream
* - 8 to 31 are multiple spatial streams using equal modulation
* [8..15 for two streams, 16..23 for three and 24..31 for four]
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 53c7077..3e81af1 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -31,7 +31,6 @@
#define IEEE80211_IBSS_JOIN_TIMEOUT (7 * HZ)
#define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
-#define IEEE80211_IBSS_MERGE_DELAY 0x400000
#define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ)
#define IEEE80211_IBSS_MAX_STA_ENTRIES 128
@@ -270,7 +269,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
enum ieee80211_band band = rx_status->band;
if (elems->ds_params && elems->ds_params_len == 1)
- freq = ieee80211_channel_to_frequency(elems->ds_params[0]);
+ freq = ieee80211_channel_to_frequency(elems->ds_params[0],
+ band);
else
freq = rx_status->freq;
@@ -354,7 +354,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
if (memcmp(cbss->bssid, sdata->u.ibss.bssid, ETH_ALEN) == 0)
goto put_bss;
- if (rx_status->flag & RX_FLAG_TSFT) {
+ if (rx_status->flag & RX_FLAG_MACTIME_MPDU) {
/*
* For correct IBSS merging we need mactime; since mactime is
* defined as the time the first data symbol of the frame hits
@@ -396,10 +396,6 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
jiffies);
#endif
- /* give slow hardware some time to do the TSF sync */
- if (rx_timestamp < IEEE80211_IBSS_MERGE_DELAY)
- goto put_bss;
-
if (beacon_timestamp > rx_timestamp) {
#ifdef CONFIG_MAC80211_IBSS_DEBUG
printk(KERN_DEBUG "%s: beacon TSF higher than "
@@ -663,12 +659,13 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
}
static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_mgmt *mgmt,
- size_t len)
+ struct sk_buff *req)
{
+ struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(req);
+ struct ieee80211_mgmt *mgmt = (void *)req->data;
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
- int tx_last_beacon;
+ int tx_last_beacon, len = req->len;
struct sk_buff *skb;
struct ieee80211_mgmt *resp;
u8 *pos, *end;
@@ -688,7 +685,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
mgmt->bssid, tx_last_beacon);
#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- if (!tx_last_beacon)
+ if (!tx_last_beacon && !(rx_status->rx_flags & IEEE80211_RX_RA_MATCH))
return;
if (memcmp(mgmt->bssid, ifibss->bssid, ETH_ALEN) != 0 &&
@@ -785,7 +782,7 @@ void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
switch (fc & IEEE80211_FCTL_STYPE) {
case IEEE80211_STYPE_PROBE_REQ:
- ieee80211_rx_mgmt_probe_req(sdata, mgmt, skb->len);
+ ieee80211_rx_mgmt_probe_req(sdata, skb);
break;
case IEEE80211_STYPE_PROBE_RESP:
ieee80211_rx_mgmt_probe_resp(sdata, mgmt, skb->len,
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 533fd32..a404017 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -225,6 +225,7 @@ struct ieee80211_if_ap {
struct sk_buff_head ps_bc_buf;
atomic_t num_sta_ps; /* number of stations in PS mode */
int dtim_count;
+ bool dtim_bc_mc;
};
struct ieee80211_if_wds {
@@ -654,8 +655,6 @@ struct tpt_led_trigger {
* well be on the operating channel
* @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
* determine if we are on the operating channel or not
- * @SCAN_OFF_CHANNEL: We're off our operating channel for scanning,
- * gets only set in conjunction with SCAN_SW_SCANNING
* @SCAN_COMPLETED: Set for our scan work function when the driver reported
* that the scan completed.
* @SCAN_ABORTED: Set for our scan work function when the driver reported
@@ -664,7 +663,6 @@ struct tpt_led_trigger {
enum {
SCAN_SW_SCANNING,
SCAN_HW_SCANNING,
- SCAN_OFF_CHANNEL,
SCAN_COMPLETED,
SCAN_ABORTED,
};
@@ -959,6 +957,7 @@ struct ieee80211_local {
unsigned int hw_roc_duration;
u32 hw_roc_cookie;
bool hw_roc_for_tx;
+ unsigned long hw_offchan_tx_cookie;
/* dummy netdev for use w/ NAPI */
struct net_device napi_dev;
@@ -1068,8 +1067,6 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
void ieee80211_configure_filter(struct ieee80211_local *local);
u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
-extern bool ieee80211_disable_40mhz_24ghz;
-
/* STA code */
void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
@@ -1147,10 +1144,14 @@ void ieee80211_rx_bss_put(struct ieee80211_local *local,
struct ieee80211_bss *bss);
/* off-channel helpers */
-void ieee80211_offchannel_stop_beaconing(struct ieee80211_local *local);
-void ieee80211_offchannel_stop_station(struct ieee80211_local *local);
+bool ieee80211_cfg_on_oper_channel(struct ieee80211_local *local);
+void ieee80211_offchannel_enable_all_ps(struct ieee80211_local *local,
+ bool tell_ap);
+void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
+ bool offchannel_ps_enable);
void ieee80211_offchannel_return(struct ieee80211_local *local,
- bool enable_beaconing);
+ bool enable_beaconing,
+ bool offchannel_ps_disable);
void ieee80211_hw_roc_setup(struct ieee80211_local *local);
/* interface handling */
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 7a10a8d..4054399 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -382,6 +382,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb, *tmp;
u32 hw_reconf_flags = 0;
int i;
+ enum nl80211_channel_type orig_ct;
if (local->scan_sdata == sdata)
ieee80211_scan_cancel(local);
@@ -542,8 +543,14 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
hw_reconf_flags = 0;
}
+ /* Re-calculate channel-type, in case there are multiple vifs
+ * on different channel types.
+ */
+ orig_ct = local->_oper_channel_type;
+ ieee80211_set_channel_type(local, NULL, NL80211_CHAN_NO_HT);
+
/* do after stop to avoid reconfiguring when we stop anyway */
- if (hw_reconf_flags)
+ if (hw_reconf_flags || (orig_ct != local->_oper_channel_type))
ieee80211_hw_config(local, hw_reconf_flags);
spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
diff --git a/net/mac80211/key.h b/net/mac80211/key.h
index 8106aa1..4ddbe27 100644
--- a/net/mac80211/key.h
+++ b/net/mac80211/key.h
@@ -21,7 +21,6 @@
#define WEP_IV_LEN 4
#define WEP_ICV_LEN 4
-#define ALG_TKIP_KEY_LEN 32
#define ALG_CCMP_KEY_LEN 16
#define CCMP_HDR_LEN 8
#define CCMP_MIC_LEN 8
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index a46ff06..562d298 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -34,7 +34,7 @@
#include "debugfs.h"
-bool ieee80211_disable_40mhz_24ghz;
+static bool ieee80211_disable_40mhz_24ghz;
module_param(ieee80211_disable_40mhz_24ghz, bool, 0644);
MODULE_PARM_DESC(ieee80211_disable_40mhz_24ghz,
"Disable 40MHz support in the 2.4GHz band");
@@ -98,6 +98,47 @@ static void ieee80211_reconfig_filter(struct work_struct *work)
ieee80211_configure_filter(local);
}
+/*
+ * Returns true if we are logically configured to be on
+ * the operating channel AND the hardware-conf is currently
+ * configured on the operating channel. Compares channel-type
+ * as well.
+ */
+bool ieee80211_cfg_on_oper_channel(struct ieee80211_local *local)
+{
+ struct ieee80211_channel *chan, *scan_chan;
+ enum nl80211_channel_type channel_type;
+
+ /* This logic needs to match logic in ieee80211_hw_config */
+ if (local->scan_channel) {
+ 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;
+ } else if (local->tmp_channel) {
+ chan = scan_chan = local->tmp_channel;
+ channel_type = local->tmp_channel_type;
+ } else {
+ chan = local->oper_channel;
+ channel_type = local->_oper_channel_type;
+ }
+
+ if (chan != local->oper_channel ||
+ channel_type != local->_oper_channel_type)
+ return false;
+
+ /* Check current hardware-config against oper_channel. */
+ if ((local->oper_channel != local->hw.conf.channel) ||
+ (local->_oper_channel_type != local->hw.conf.channel_type))
+ return false;
+
+ return true;
+}
+
int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
{
struct ieee80211_channel *chan, *scan_chan;
@@ -110,21 +151,33 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
scan_chan = local->scan_channel;
+ /* If this off-channel logic ever changes, ieee80211_on_oper_channel
+ * may need to change as well.
+ */
offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL;
if (scan_chan) {
chan = scan_chan;
- channel_type = NL80211_CHAN_NO_HT;
- local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL;
- } else if (local->tmp_channel &&
- local->oper_channel != local->tmp_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;
+ } else if (local->tmp_channel) {
chan = scan_chan = local->tmp_channel;
channel_type = local->tmp_channel_type;
- local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL;
} else {
chan = local->oper_channel;
channel_type = local->_oper_channel_type;
- local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL;
}
+
+ if (chan != local->oper_channel ||
+ channel_type != local->_oper_channel_type)
+ 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 ||
@@ -146,7 +199,8 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
changed |= IEEE80211_CONF_CHANGE_SMPS;
}
- if (scan_chan)
+ if ((local->scanning & SCAN_SW_SCANNING) ||
+ (local->scanning & SCAN_HW_SCANNING))
power = chan->max_power;
else
power = local->power_constr_level ?
@@ -231,7 +285,7 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
if (changed & BSS_CHANGED_BEACON_ENABLED) {
if (local->quiescing || !ieee80211_sdata_running(sdata) ||
- test_bit(SCAN_SW_SCANNING, &local->scanning)) {
+ test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state)) {
sdata->vif.bss_conf.enable_beacon = false;
} else {
/*
@@ -326,6 +380,9 @@ void ieee80211_restart_hw(struct ieee80211_hw *hw)
trace_api_restart_hw(local);
+ wiphy_info(hw->wiphy,
+ "Hardware restart was requested\n");
+
/* use this reason, ieee80211_reconfig will unblock it */
ieee80211_stop_queues_by_reason(hw,
IEEE80211_QUEUE_STOP_REASON_SUSPEND);
@@ -554,6 +611,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
local->hw.queues = 1;
local->hw.max_rates = 1;
local->hw.max_report_rates = 0;
+ local->hw.max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
local->user_power_level = -1;
@@ -668,6 +726,18 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
}
channels += sband->n_channels;
+ /*
+ * Since ieee80211_disable_40mhz_24ghz is global, we can
+ * modify the sband's ht data even if the driver uses a
+ * global structure for that.
+ */
+ if (ieee80211_disable_40mhz_24ghz &&
+ band == IEEE80211_BAND_2GHZ &&
+ sband->ht_cap.ht_supported) {
+ sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
+ sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SGI_40;
+ }
+
if (max_bitrates < sband->n_bitrates)
max_bitrates = sband->n_bitrates;
supp_ht = supp_ht || sband->ht_cap.ht_supported;
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index ca3af46..2a57cc0 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -574,7 +574,7 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
&elems);
if (elems.ds_params && elems.ds_params_len == 1)
- freq = ieee80211_channel_to_frequency(elems.ds_params[0]);
+ freq = ieee80211_channel_to_frequency(elems.ds_params[0], band);
else
freq = rx_status->freq;
@@ -645,7 +645,7 @@ void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata)
if (test_and_clear_bit(MESH_WORK_GROW_MPATH_TABLE, &ifmsh->wrkq_flags))
mesh_mpath_table_grow();
- if (test_and_clear_bit(MESH_WORK_GROW_MPATH_TABLE, &ifmsh->wrkq_flags))
+ if (test_and_clear_bit(MESH_WORK_GROW_MPP_TABLE, &ifmsh->wrkq_flags))
mesh_mpp_table_grow();
if (test_and_clear_bit(MESH_WORK_HOUSEKEEPING, &ifmsh->wrkq_flags))
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index c9ceb4d..64d92d5 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -28,8 +28,15 @@
#include "rate.h"
#include "led.h"
-#define IEEE80211_MAX_NULLFUNC_TRIES 2
-#define IEEE80211_MAX_PROBE_TRIES 5
+static int max_nullfunc_tries = 2;
+module_param(max_nullfunc_tries, int, 0644);
+MODULE_PARM_DESC(max_nullfunc_tries,
+ "Maximum nullfunc tx tries before disconnecting (reason 4).");
+
+static int max_probe_tries = 5;
+module_param(max_probe_tries, int, 0644);
+MODULE_PARM_DESC(max_probe_tries,
+ "Maximum probe tries before disconnecting (reason 4).");
/*
* Beacon loss timeout is calculated as N frames times the
@@ -51,7 +58,11 @@
* a probe request because of beacon loss or for
* checking the connection still works.
*/
-#define IEEE80211_PROBE_WAIT (HZ / 2)
+static int probe_wait_ms = 500;
+module_param(probe_wait_ms, int, 0644);
+MODULE_PARM_DESC(probe_wait_ms,
+ "Maximum time(ms) to wait for probe response"
+ " before disconnecting (reason 4).");
/*
* Weight given to the latest Beacon frame when calculating average signal
@@ -134,6 +145,9 @@ void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ if (unlikely(!sdata->u.mgd.associated))
+ return;
+
if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
return;
@@ -161,6 +175,7 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
struct ieee80211_supported_band *sband;
struct sta_info *sta;
u32 changed = 0;
+ int hti_cfreq;
u16 ht_opmode;
bool enable_ht = true;
enum nl80211_channel_type prev_chantype;
@@ -174,10 +189,27 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
if (!sband->ht_cap.ht_supported)
enable_ht = false;
- /* check that channel matches the right operating channel */
- if (local->hw.conf.channel->center_freq !=
- ieee80211_channel_to_frequency(hti->control_chan))
- enable_ht = false;
+ if (enable_ht) {
+ hti_cfreq = ieee80211_channel_to_frequency(hti->control_chan,
+ sband->band);
+ /* check that channel matches the right operating channel */
+ if (local->hw.conf.channel->center_freq != hti_cfreq) {
+ /* Some APs mess this up, evidently.
+ * Netgear WNDR3700 sometimes reports 4 higher than
+ * the actual channel, for instance.
+ */
+ printk(KERN_DEBUG
+ "%s: Wrong control channel in association"
+ " response: configured center-freq: %d"
+ " hti-cfreq: %d hti->control_chan: %d"
+ " band: %d. Disabling HT.\n",
+ sdata->name,
+ local->hw.conf.channel->center_freq,
+ hti_cfreq, hti->control_chan,
+ sband->band);
+ enable_ht = false;
+ }
+ }
if (enable_ht) {
channel_type = NL80211_CHAN_HT20;
@@ -429,7 +461,8 @@ void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
container_of((void *)bss, struct cfg80211_bss, priv);
struct ieee80211_channel *new_ch;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
- int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num);
+ int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num,
+ cbss->channel->band);
ASSERT_MGD_MTX(ifmgd);
@@ -580,6 +613,37 @@ static void ieee80211_change_ps(struct ieee80211_local *local)
}
}
+static bool ieee80211_powersave_allowed(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_if_managed *mgd = &sdata->u.mgd;
+ struct sta_info *sta = NULL;
+ u32 sta_flags = 0;
+
+ if (!mgd->powersave)
+ return false;
+
+ if (!mgd->associated)
+ return false;
+
+ if (!mgd->associated->beacon_ies)
+ return false;
+
+ if (mgd->flags & (IEEE80211_STA_BEACON_POLL |
+ IEEE80211_STA_CONNECTION_POLL))
+ return false;
+
+ rcu_read_lock();
+ sta = sta_info_get(sdata, mgd->bssid);
+ if (sta)
+ sta_flags = get_sta_flags(sta);
+ rcu_read_unlock();
+
+ if (!(sta_flags & WLAN_STA_AUTHORIZED))
+ return false;
+
+ return true;
+}
+
/* need to hold RTNL or interface lock */
void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency)
{
@@ -600,17 +664,21 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency)
list_for_each_entry(sdata, &local->interfaces, list) {
if (!ieee80211_sdata_running(sdata))
continue;
+ if (sdata->vif.type == NL80211_IFTYPE_AP) {
+ /* If an AP vif is found, then disable PS
+ * by setting the count to zero thereby setting
+ * ps_sdata to NULL.
+ */
+ count = 0;
+ break;
+ }
if (sdata->vif.type != NL80211_IFTYPE_STATION)
continue;
found = sdata;
count++;
}
- if (count == 1 && found->u.mgd.powersave &&
- found->u.mgd.associated &&
- found->u.mgd.associated->beacon_ies &&
- !(found->u.mgd.flags & (IEEE80211_STA_BEACON_POLL |
- IEEE80211_STA_CONNECTION_POLL))) {
+ if (count == 1 && ieee80211_powersave_allowed(found)) {
struct ieee80211_conf *conf = &local->hw.conf;
s32 beaconint_us;
@@ -700,9 +768,19 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
return;
if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) &&
- (!(ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED)))
+ (!(ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED))) {
+ netif_tx_stop_all_queues(sdata->dev);
+ /*
+ * Flush all the frames queued in the driver before
+ * going to power save
+ */
+ drv_flush(local, false);
ieee80211_send_nullfunc(local, sdata, 1);
+ /* Flush once again to get the tx status of nullfunc frame */
+ drv_flush(local, false);
+ }
+
if (!((local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) &&
(local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)) ||
(ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED)) {
@@ -710,6 +788,8 @@ 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);
}
+
+ netif_tx_start_all_queues(sdata->dev);
}
void ieee80211_dynamic_ps_timer(unsigned long data)
@@ -1033,12 +1113,6 @@ void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
if (is_multicast_ether_addr(hdr->addr1))
return;
- /*
- * In case we receive frames after disassociation.
- */
- if (!sdata->u.mgd.associated)
- return;
-
ieee80211_sta_reset_conn_monitor(sdata);
}
@@ -1095,7 +1169,7 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
const u8 *ssid;
u8 *dst = ifmgd->associated->bssid;
- u8 unicast_limit = max(1, IEEE80211_MAX_PROBE_TRIES - 3);
+ u8 unicast_limit = max(1, max_probe_tries - 3);
/*
* Try sending broadcast probe requests for the last three
@@ -1121,7 +1195,7 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)
}
ifmgd->probe_send_count++;
- ifmgd->probe_timeout = jiffies + IEEE80211_PROBE_WAIT;
+ ifmgd->probe_timeout = jiffies + msecs_to_jiffies(probe_wait_ms);
run_again(ifmgd, ifmgd->probe_timeout);
}
@@ -1222,7 +1296,8 @@ static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata)
memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN);
- printk(KERN_DEBUG "Connection to AP %pM lost.\n", bssid);
+ printk(KERN_DEBUG "%s: Connection to AP %pM lost.\n",
+ sdata->name, bssid);
ieee80211_set_disassoc(sdata, true, true);
mutex_unlock(&ifmgd->mtx);
@@ -1525,7 +1600,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
}
if (elems->ds_params && elems->ds_params_len == 1)
- freq = ieee80211_channel_to_frequency(elems->ds_params[0]);
+ freq = ieee80211_channel_to_frequency(elems->ds_params[0],
+ rx_status->band);
else
freq = rx_status->freq;
@@ -1966,9 +2042,9 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN);
if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
- max_tries = IEEE80211_MAX_NULLFUNC_TRIES;
+ max_tries = max_nullfunc_tries;
else
- max_tries = IEEE80211_MAX_PROBE_TRIES;
+ max_tries = max_probe_tries;
/* ACK received for nullfunc probing frame */
if (!ifmgd->probe_send_count)
@@ -1978,9 +2054,9 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
wiphy_debug(local->hw.wiphy,
"%s: No ack for nullfunc frame to"
- " AP %pM, try %d\n",
+ " AP %pM, try %d/%i\n",
sdata->name, bssid,
- ifmgd->probe_send_count);
+ ifmgd->probe_send_count, max_tries);
#endif
ieee80211_mgd_probe_ap_send(sdata);
} else {
@@ -2000,17 +2076,17 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
"%s: Failed to send nullfunc to AP %pM"
" after %dms, disconnecting.\n",
sdata->name,
- bssid, (1000 * IEEE80211_PROBE_WAIT)/HZ);
+ bssid, probe_wait_ms);
#endif
ieee80211_sta_connection_lost(sdata, bssid);
} else if (ifmgd->probe_send_count < max_tries) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
wiphy_debug(local->hw.wiphy,
"%s: No probe response from AP %pM"
- " after %dms, try %d\n",
+ " after %dms, try %d/%i\n",
sdata->name,
- bssid, (1000 * IEEE80211_PROBE_WAIT)/HZ,
- ifmgd->probe_send_count);
+ bssid, probe_wait_ms,
+ ifmgd->probe_send_count, max_tries);
#endif
ieee80211_mgd_probe_ap_send(sdata);
} else {
@@ -2022,7 +2098,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
"%s: No probe response from AP %pM"
" after %dms, disconnecting.\n",
sdata->name,
- bssid, (1000 * IEEE80211_PROBE_WAIT)/HZ);
+ bssid, probe_wait_ms);
ieee80211_sta_connection_lost(sdata, bssid);
}
@@ -2260,6 +2336,7 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
else
wk->type = IEEE80211_WORK_DIRECT_PROBE;
wk->chan = req->bss->channel;
+ wk->chan_type = NL80211_CHAN_NO_HT;
wk->sdata = sdata;
wk->done = ieee80211_probe_auth_done;
@@ -2409,6 +2486,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
memcpy(wk->assoc.prev_bssid, req->prev_bssid, ETH_ALEN);
wk->chan = req->bss->channel;
+ wk->chan_type = NL80211_CHAN_NO_HT;
wk->sdata = sdata;
wk->done = ieee80211_assoc_done;
if (!bss->dtim_period &&
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index b4e5267..13427b1 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -17,10 +17,14 @@
#include "driver-trace.h"
/*
- * inform AP that we will go to sleep so that it will buffer the frames
- * while we scan
+ * Tell our hardware to disable PS.
+ * Optionally inform AP that we will go to sleep so that it will buffer
+ * the frames while we are doing off-channel work. This is optional
+ * because we *may* be doing work on-operating channel, and want our
+ * hardware unconditionally awake, but still let the AP send us normal frames.
*/
-static void ieee80211_offchannel_ps_enable(struct ieee80211_sub_if_data *sdata)
+static void ieee80211_offchannel_ps_enable(struct ieee80211_sub_if_data *sdata,
+ bool tell_ap)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
@@ -41,8 +45,8 @@ static void ieee80211_offchannel_ps_enable(struct ieee80211_sub_if_data *sdata)
ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
}
- if (!(local->offchannel_ps_enabled) ||
- !(local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK))
+ if (tell_ap && (!local->offchannel_ps_enabled ||
+ !(local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)))
/*
* If power save was enabled, no need to send a nullfunc
* frame because AP knows that we are sleeping. But if the
@@ -77,6 +81,9 @@ static void ieee80211_offchannel_ps_disable(struct ieee80211_sub_if_data *sdata)
* we are sleeping, let's just enable power save mode in
* hardware.
*/
+ /* TODO: Only set hardware if CONF_PS changed?
+ * TODO: Should we set offchannel_ps_enabled to false?
+ */
local->hw.conf.flags |= IEEE80211_CONF_PS;
ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
} else if (local->hw.conf.dynamic_ps_timeout > 0) {
@@ -95,63 +102,61 @@ static void ieee80211_offchannel_ps_disable(struct ieee80211_sub_if_data *sdata)
ieee80211_sta_reset_conn_monitor(sdata);
}
-void ieee80211_offchannel_stop_beaconing(struct ieee80211_local *local)
+void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
+ bool offchannel_ps_enable)
{
struct ieee80211_sub_if_data *sdata;
+ /*
+ * notify the AP about us leaving the channel and stop all
+ * STA interfaces.
+ */
mutex_lock(&local->iflist_mtx);
list_for_each_entry(sdata, &local->interfaces, list) {
if (!ieee80211_sdata_running(sdata))
continue;
- /* disable beaconing */
+ if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
+ set_bit(SDATA_STATE_OFFCHANNEL, &sdata->state);
+
+ /* Check to see if we should disable beaconing. */
if (sdata->vif.type == NL80211_IFTYPE_AP ||
sdata->vif.type == NL80211_IFTYPE_ADHOC ||
sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
ieee80211_bss_info_change_notify(
sdata, BSS_CHANGED_BEACON_ENABLED);
- /*
- * only handle non-STA interfaces here, STA interfaces
- * are handled in ieee80211_offchannel_stop_station(),
- * e.g., from the background scan state machine.
- *
- * In addition, do not stop monitor interface to allow it to be
- * used from user space controlled off-channel operations.
- */
- if (sdata->vif.type != NL80211_IFTYPE_STATION &&
- sdata->vif.type != NL80211_IFTYPE_MONITOR) {
- set_bit(SDATA_STATE_OFFCHANNEL, &sdata->state);
+ if (sdata->vif.type != NL80211_IFTYPE_MONITOR) {
netif_tx_stop_all_queues(sdata->dev);
+ if (offchannel_ps_enable &&
+ (sdata->vif.type == NL80211_IFTYPE_STATION) &&
+ sdata->u.mgd.associated)
+ ieee80211_offchannel_ps_enable(sdata, true);
}
}
mutex_unlock(&local->iflist_mtx);
}
-void ieee80211_offchannel_stop_station(struct ieee80211_local *local)
+void ieee80211_offchannel_enable_all_ps(struct ieee80211_local *local,
+ bool tell_ap)
{
struct ieee80211_sub_if_data *sdata;
- /*
- * notify the AP about us leaving the channel and stop all STA interfaces
- */
mutex_lock(&local->iflist_mtx);
list_for_each_entry(sdata, &local->interfaces, list) {
if (!ieee80211_sdata_running(sdata))
continue;
- if (sdata->vif.type == NL80211_IFTYPE_STATION) {
- set_bit(SDATA_STATE_OFFCHANNEL, &sdata->state);
- netif_tx_stop_all_queues(sdata->dev);
- if (sdata->u.mgd.associated)
- ieee80211_offchannel_ps_enable(sdata);
- }
+ if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+ sdata->u.mgd.associated)
+ ieee80211_offchannel_ps_enable(sdata, tell_ap);
}
mutex_unlock(&local->iflist_mtx);
}
void ieee80211_offchannel_return(struct ieee80211_local *local,
- bool enable_beaconing)
+ bool enable_beaconing,
+ bool offchannel_ps_disable)
{
struct ieee80211_sub_if_data *sdata;
@@ -161,7 +166,8 @@ void ieee80211_offchannel_return(struct ieee80211_local *local,
continue;
/* Tell AP we're back */
- if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+ if (offchannel_ps_disable &&
+ sdata->vif.type == NL80211_IFTYPE_STATION) {
if (sdata->u.mgd.associated)
ieee80211_offchannel_ps_disable(sdata);
}
@@ -181,7 +187,7 @@ void ieee80211_offchannel_return(struct ieee80211_local *local,
netif_tx_wake_all_queues(sdata->dev);
}
- /* re-enable beaconing */
+ /* Check to see if we should re-enable beaconing */
if (enable_beaconing &&
(sdata->vif.type == NL80211_IFTYPE_AP ||
sdata->vif.type == NL80211_IFTYPE_ADHOC ||
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 165a451..8212a8b 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -415,10 +415,8 @@ minstrel_ht_tx_status(void *priv, struct ieee80211_supported_band *sband,
mi->sample_count--;
}
- if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) {
+ if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE)
mi->sample_packets += info->status.ampdu_len;
- minstrel_next_sample_idx(mi);
- }
for (i = 0; !last; i++) {
last = (i == IEEE80211_TX_MAX_RATES - 1) ||
@@ -519,9 +517,7 @@ minstrel_ht_set_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi,
rate->count = mr->retry_count;
rate->flags = IEEE80211_TX_RC_MCS | group->flags;
- if (txrc->short_preamble)
- rate->flags |= IEEE80211_TX_RC_USE_SHORT_PREAMBLE;
- if (txrc->rts || rtscts)
+ if (rtscts)
rate->flags |= IEEE80211_TX_RC_USE_RTS_CTS;
rate->idx = index % MCS_GROUP_RATES + (group->streams - 1) * MCS_GROUP_RATES;
}
@@ -553,13 +549,14 @@ minstrel_get_sample_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
sample_idx = sample_table[mg->column][mg->index];
mr = &mg->rates[sample_idx];
sample_idx += mi->sample_group * MCS_GROUP_RATES;
+ minstrel_next_sample_idx(mi);
/*
* When not using MRR, do not sample if the probability is already
* higher than 95% to avoid wasting airtime
*/
if (!mp->has_mrr && (mr->probability > MINSTREL_FRAC(95, 100)))
- goto next;
+ return -1;
/*
* Make sure that lower rates get sampled only occasionally,
@@ -568,17 +565,13 @@ minstrel_get_sample_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
if (minstrel_get_duration(sample_idx) >
minstrel_get_duration(mi->max_tp_rate)) {
if (mr->sample_skipped < 20)
- goto next;
+ return -1;
if (mi->sample_slow++ > 2)
- goto next;
+ return -1;
}
return sample_idx;
-
-next:
- minstrel_next_sample_idx(mi);
- return -1;
}
static void
@@ -605,19 +598,46 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
sample = true;
minstrel_ht_set_rate(mp, mi, &ar[0], sample_idx,
txrc, true, false);
- minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate,
- txrc, false, false);
info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
} else {
minstrel_ht_set_rate(mp, mi, &ar[0], mi->max_tp_rate,
txrc, false, false);
- minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate2,
- txrc, false, true);
}
- minstrel_ht_set_rate(mp, mi, &ar[2], mi->max_prob_rate, txrc, false, !sample);
- ar[3].count = 0;
- ar[3].idx = -1;
+ 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,
+ txrc, false, false);
+ else
+ minstrel_ht_set_rate(mp, mi, &ar[1], mi->max_tp_rate2,
+ txrc, false, true);
+
+ minstrel_ht_set_rate(mp, mi, &ar[2], mi->max_prob_rate,
+ txrc, 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,
+ txrc, 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++;
diff --git a/net/mac80211/rc80211_pid.h b/net/mac80211/rc80211_pid.h
index 1a873f0..6510f8e 100644
--- a/net/mac80211/rc80211_pid.h
+++ b/net/mac80211/rc80211_pid.h
@@ -24,9 +24,6 @@
/* Fixed point arithmetic shifting amount. */
#define RC_PID_ARITH_SHIFT 8
-/* Fixed point arithmetic factor. */
-#define RC_PID_ARITH_FACTOR (1 << RC_PID_ARITH_SHIFT)
-
/* Proportional PID component coefficient. */
#define RC_PID_COEFF_P 15
/* Integral PID component coefficient. */
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index a6701ed..5c1930b 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -77,7 +77,7 @@ ieee80211_rx_radiotap_len(struct ieee80211_local *local,
/* always present fields */
len = sizeof(struct ieee80211_radiotap_header) + 9;
- if (status->flag & RX_FLAG_TSFT)
+ if (status->flag & RX_FLAG_MACTIME_MPDU)
len += 8;
if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
len += 1;
@@ -85,6 +85,9 @@ ieee80211_rx_radiotap_len(struct ieee80211_local *local,
if (len & 1) /* padding for RX_FLAGS if necessary */
len++;
+ if (status->flag & RX_FLAG_HT) /* HT info */
+ len += 3;
+
return len;
}
@@ -120,7 +123,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
/* the order of the following fields is important */
/* IEEE80211_RADIOTAP_TSFT */
- if (status->flag & RX_FLAG_TSFT) {
+ if (status->flag & RX_FLAG_MACTIME_MPDU) {
put_unaligned_le64(status->mactime, pos);
rthdr->it_present |=
cpu_to_le32(1 << IEEE80211_RADIOTAP_TSFT);
@@ -139,11 +142,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
/* IEEE80211_RADIOTAP_RATE */
if (status->flag & RX_FLAG_HT) {
/*
- * TODO: add following information into radiotap header once
- * suitable fields are defined for it:
- * - MCS index (status->rate_idx)
- * - HT40 (status->flag & RX_FLAG_40MHZ)
- * - short-GI (status->flag & RX_FLAG_SHORT_GI)
+ * MCS information is a separate field in radiotap,
+ * added below.
*/
*pos = 0;
} else {
@@ -193,6 +193,20 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
rx_flags |= IEEE80211_RADIOTAP_F_RX_BADPLCP;
put_unaligned_le16(rx_flags, pos);
pos += 2;
+
+ if (status->flag & RX_FLAG_HT) {
+ rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_MCS);
+ *pos++ = IEEE80211_RADIOTAP_MCS_HAVE_MCS |
+ IEEE80211_RADIOTAP_MCS_HAVE_GI |
+ IEEE80211_RADIOTAP_MCS_HAVE_BW;
+ *pos = 0;
+ if (status->flag & RX_FLAG_SHORT_GI)
+ *pos |= IEEE80211_RADIOTAP_MCS_SGI;
+ if (status->flag & RX_FLAG_40MHZ)
+ *pos |= IEEE80211_RADIOTAP_MCS_BW_40;
+ pos++;
+ *pos++ = status->rate_idx;
+ }
}
/*
@@ -392,16 +406,10 @@ ieee80211_rx_h_passive_scan(struct ieee80211_rx_data *rx)
if (likely(!(status->rx_flags & IEEE80211_RX_IN_SCAN)))
return RX_CONTINUE;
- if (test_bit(SCAN_HW_SCANNING, &local->scanning))
+ if (test_bit(SCAN_HW_SCANNING, &local->scanning) ||
+ test_bit(SCAN_SW_SCANNING, &local->scanning))
return ieee80211_scan_rx(rx->sdata, skb);
- if (test_bit(SCAN_SW_SCANNING, &local->scanning)) {
- /* drop all the other packets during a software scan anyway */
- if (ieee80211_scan_rx(rx->sdata, skb) != RX_QUEUED)
- dev_kfree_skb(skb);
- return RX_QUEUED;
- }
-
/* scanning finished during invoking of handlers */
I802_DEBUG_INC(local->rx_handlers_drop_passive_scan);
return RX_DROP_UNUSABLE;
@@ -798,7 +806,7 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
rx->local->dot11FrameDuplicateCount++;
rx->sta->num_duplicates++;
}
- return RX_DROP_MONITOR;
+ return RX_DROP_UNUSABLE;
} else
rx->sta->last_seq_ctrl[rx->queue] = hdr->seq_ctrl;
}
@@ -824,18 +832,8 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
ieee80211_is_pspoll(hdr->frame_control)) &&
rx->sdata->vif.type != NL80211_IFTYPE_ADHOC &&
rx->sdata->vif.type != NL80211_IFTYPE_WDS &&
- (!rx->sta || !test_sta_flags(rx->sta, WLAN_STA_ASSOC)))) {
- if ((!ieee80211_has_fromds(hdr->frame_control) &&
- !ieee80211_has_tods(hdr->frame_control) &&
- ieee80211_is_data(hdr->frame_control)) ||
- !(status->rx_flags & IEEE80211_RX_RA_MATCH)) {
- /* Drop IBSS frames and frames for other hosts
- * silently. */
- return RX_DROP_MONITOR;
- }
-
+ (!rx->sta || !test_sta_flags(rx->sta, WLAN_STA_ASSOC))))
return RX_DROP_MONITOR;
- }
return RX_CONTINUE;
}
@@ -1088,7 +1086,8 @@ static void ap_sta_ps_start(struct sta_info *sta)
atomic_inc(&sdata->bss->num_sta_ps);
set_sta_flags(sta, WLAN_STA_PS_STA);
- drv_sta_notify(local, sdata, STA_NOTIFY_SLEEP, &sta->sta);
+ if (!(local->hw.flags & IEEE80211_HW_AP_LINK_PS))
+ drv_sta_notify(local, sdata, STA_NOTIFY_SLEEP, &sta->sta);
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
printk(KERN_DEBUG "%s: STA %pM aid %d enters power save mode\n",
sdata->name, sta->sta.addr, sta->sta.aid);
@@ -1117,6 +1116,27 @@ static void ap_sta_ps_end(struct sta_info *sta)
ieee80211_sta_ps_deliver_wakeup(sta);
}
+int ieee80211_sta_ps_transition(struct ieee80211_sta *sta, bool start)
+{
+ struct sta_info *sta_inf = container_of(sta, struct sta_info, sta);
+ bool in_ps;
+
+ WARN_ON(!(sta_inf->local->hw.flags & IEEE80211_HW_AP_LINK_PS));
+
+ /* Don't let the same PS state be set twice */
+ in_ps = test_sta_flags(sta_inf, WLAN_STA_PS_STA);
+ if ((start && in_ps) || (!start && !in_ps))
+ return -EINVAL;
+
+ if (start)
+ ap_sta_ps_start(sta_inf);
+ else
+ ap_sta_ps_end(sta_inf);
+
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_sta_ps_transition);
+
static ieee80211_rx_result debug_noinline
ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
{
@@ -1136,14 +1156,23 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
if (rx->sdata->vif.type == NL80211_IFTYPE_ADHOC) {
u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len,
NL80211_IFTYPE_ADHOC);
- if (compare_ether_addr(bssid, rx->sdata->u.ibss.bssid) == 0)
+ if (compare_ether_addr(bssid, rx->sdata->u.ibss.bssid) == 0) {
sta->last_rx = jiffies;
+ if (ieee80211_is_data(hdr->frame_control)) {
+ sta->last_rx_rate_idx = status->rate_idx;
+ sta->last_rx_rate_flag = status->flag;
+ }
+ }
} else if (!is_multicast_ether_addr(hdr->addr1)) {
/*
* Mesh beacons will update last_rx when if they are found to
* match the current local configuration when processed.
*/
sta->last_rx = jiffies;
+ if (ieee80211_is_data(hdr->frame_control)) {
+ sta->last_rx_rate_idx = status->rate_idx;
+ sta->last_rx_rate_flag = status->flag;
+ }
}
if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
@@ -1161,7 +1190,8 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
* Change STA power saving mode only at the end of a frame
* exchange sequence.
*/
- if (!ieee80211_has_morefrags(hdr->frame_control) &&
+ if (!(sta->local->hw.flags & IEEE80211_HW_AP_LINK_PS) &&
+ !ieee80211_has_morefrags(hdr->frame_control) &&
!(status->rx_flags & IEEE80211_RX_DEFERRED_RELEASE) &&
(rx->sdata->vif.type == NL80211_IFTYPE_AP ||
rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN)) {
@@ -1556,17 +1586,36 @@ __ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
{
struct ieee80211_sub_if_data *sdata = rx->sdata;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
+ bool check_port_control = false;
+ struct ethhdr *ehdr;
+ int ret;
if (ieee80211_has_a4(hdr->frame_control) &&
sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
return -1;
+ if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+ !!sdata->u.mgd.use_4addr != !!ieee80211_has_a4(hdr->frame_control)) {
+
+ if (!sdata->u.mgd.use_4addr)
+ return -1;
+ else
+ check_port_control = true;
+ }
+
if (is_multicast_ether_addr(hdr->addr1) &&
- ((sdata->vif.type == NL80211_IFTYPE_AP_VLAN && sdata->u.vlan.sta) ||
- (sdata->vif.type == NL80211_IFTYPE_STATION && sdata->u.mgd.use_4addr)))
+ sdata->vif.type == NL80211_IFTYPE_AP_VLAN && sdata->u.vlan.sta)
return -1;
- return ieee80211_data_to_8023(rx->skb, sdata->vif.addr, sdata->vif.type);
+ ret = ieee80211_data_to_8023(rx->skb, sdata->vif.addr, sdata->vif.type);
+ if (ret < 0 || !check_port_control)
+ return ret;
+
+ ehdr = (struct ethhdr *) rx->skb->data;
+ if (ehdr->h_proto != rx->sdata->control_port_protocol)
+ return -1;
+
+ return 0;
}
/*
@@ -1893,7 +1942,10 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx)
dev->stats.rx_bytes += rx->skb->len;
if (local->ps_sdata && local->hw.conf.dynamic_ps_timeout > 0 &&
- !is_multicast_ether_addr(((struct ethhdr *)rx->skb->data)->h_dest)) {
+ !is_multicast_ether_addr(
+ ((struct ethhdr *)rx->skb->data)->h_dest) &&
+ (!local->scanning &&
+ !test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state))) {
mod_timer(&local->dynamic_ps_timer, jiffies +
msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout));
}
@@ -2590,7 +2642,8 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
return 0;
if (!multicast &&
compare_ether_addr(sdata->vif.addr, hdr->addr1) != 0) {
- if (!(sdata->dev->flags & IFF_PROMISC))
+ if (!(sdata->dev->flags & IFF_PROMISC) ||
+ sdata->u.mgd.use_4addr)
return 0;
status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
}
@@ -2639,7 +2692,8 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
return 0;
} else if (!ieee80211_bssid_match(bssid,
sdata->vif.addr)) {
- if (!(status->rx_flags & IEEE80211_RX_IN_SCAN))
+ if (!(status->rx_flags & IEEE80211_RX_IN_SCAN) &&
+ !ieee80211_is_beacon(hdr->frame_control))
return 0;
status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
}
@@ -2692,7 +2746,7 @@ static bool ieee80211_prepare_and_rx_handle(struct ieee80211_rx_data *rx,
if (!skb) {
if (net_ratelimit())
wiphy_debug(local->hw.wiphy,
- "failed to copy multicast frame for %s\n",
+ "failed to copy skb for %s\n",
sdata->name);
return true;
}
@@ -2730,7 +2784,7 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
local->dot11ReceivedFragmentCount++;
if (unlikely(test_bit(SCAN_HW_SCANNING, &local->scanning) ||
- test_bit(SCAN_OFF_CHANNEL, &local->scanning)))
+ test_bit(SCAN_SW_SCANNING, &local->scanning)))
status->rx_flags |= IEEE80211_RX_IN_SCAN;
if (ieee80211_is_mgmt(fc))
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index fb274db..489b6ad 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -196,7 +196,8 @@ ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
ieee802_11_parse_elems(elements, skb->len - baselen, &elems);
if (elems.ds_params && elems.ds_params_len == 1)
- freq = ieee80211_channel_to_frequency(elems.ds_params[0]);
+ freq = ieee80211_channel_to_frequency(elems.ds_params[0],
+ rx_status->band);
else
freq = rx_status->freq;
@@ -211,6 +212,14 @@ ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
if (bss)
ieee80211_rx_bss_put(sdata->local, bss);
+ /* If we are on-operating-channel, and this packet is for the
+ * current channel, pass the pkt on up the stack so that
+ * the rest of the stack can make use of it.
+ */
+ if (ieee80211_cfg_on_oper_channel(sdata->local)
+ && (channel == sdata->local->oper_channel))
+ return RX_CONTINUE;
+
dev_kfree_skb(skb);
return RX_QUEUED;
}
@@ -249,10 +258,12 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local)
return true;
}
-static bool __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted,
+static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted,
bool was_hw_scan)
{
struct ieee80211_local *local = hw_to_local(hw);
+ bool on_oper_chan;
+ bool enable_beacons = false;
lockdep_assert_held(&local->mtx);
@@ -266,12 +277,12 @@ static bool __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted,
aborted = true;
if (WARN_ON(!local->scan_req))
- return false;
+ return;
if (was_hw_scan && !aborted && ieee80211_prep_hw_scan(local)) {
int rc = drv_hw_scan(local, local->scan_sdata, local->hw_scan_req);
if (rc == 0)
- return false;
+ return;
}
kfree(local->hw_scan_req);
@@ -285,24 +296,28 @@ static bool __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted,
local->scanning = 0;
local->scan_channel = NULL;
- return true;
-}
+ on_oper_chan = ieee80211_cfg_on_oper_channel(local);
-static void __ieee80211_scan_completed_finish(struct ieee80211_hw *hw,
- bool was_hw_scan)
-{
- struct ieee80211_local *local = hw_to_local(hw);
+ if (was_hw_scan || !on_oper_chan)
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
+ else
+ /* Set power back to normal operating levels. */
+ ieee80211_hw_config(local, 0);
- ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
if (!was_hw_scan) {
+ bool on_oper_chan2;
ieee80211_configure_filter(local);
drv_sw_scan_complete(local);
- ieee80211_offchannel_return(local, true);
+ on_oper_chan2 = ieee80211_cfg_on_oper_channel(local);
+ /* We should always be on-channel at this point. */
+ WARN_ON(!on_oper_chan2);
+ if (on_oper_chan2 && (on_oper_chan != on_oper_chan2))
+ enable_beacons = true;
+
+ ieee80211_offchannel_return(local, enable_beacons, true);
}
- mutex_lock(&local->mtx);
ieee80211_recalc_idle(local);
- mutex_unlock(&local->mtx);
ieee80211_mlme_notify_scan_completed(local);
ieee80211_ibss_notify_scan_completed(local);
@@ -340,16 +355,21 @@ static int ieee80211_start_sw_scan(struct ieee80211_local *local)
*/
drv_sw_scan_start(local);
- ieee80211_offchannel_stop_beaconing(local);
-
local->leave_oper_channel_time = 0;
local->next_scan_state = SCAN_DECISION;
local->scan_channel_idx = 0;
- drv_flush(local, false);
+ /* We always want to use off-channel PS, even if we
+ * are not really leaving oper-channel. Don't
+ * tell the AP though, as long as we are on-channel.
+ */
+ ieee80211_offchannel_enable_all_ps(local, false);
ieee80211_configure_filter(local);
+ /* We need to set power level at maximum rate for scanning. */
+ ieee80211_hw_config(local, 0);
+
ieee80211_queue_delayed_work(&local->hw,
&local->scan_work,
IEEE80211_CHANNEL_TIME);
@@ -486,7 +506,20 @@ static void ieee80211_scan_state_decision(struct ieee80211_local *local,
}
mutex_unlock(&local->iflist_mtx);
- if (local->scan_channel) {
+ next_chan = local->scan_req->channels[local->scan_channel_idx];
+
+ if (ieee80211_cfg_on_oper_channel(local)) {
+ /* We're currently on operating channel. */
+ if (next_chan == local->oper_channel)
+ /* We don't need to move off of operating channel. */
+ local->next_scan_state = SCAN_SET_CHANNEL;
+ else
+ /*
+ * We do need to leave operating channel, as next
+ * scan is somewhere else.
+ */
+ local->next_scan_state = SCAN_LEAVE_OPER_CHANNEL;
+ } else {
/*
* we're currently scanning a different channel, let's
* see if we can scan another channel without interfering
@@ -502,7 +535,6 @@ static void ieee80211_scan_state_decision(struct ieee80211_local *local,
*
* Otherwise switch back to the operating channel.
*/
- next_chan = local->scan_req->channels[local->scan_channel_idx];
bad_latency = time_after(jiffies +
ieee80211_scan_get_channel_time(next_chan),
@@ -520,12 +552,6 @@ static void ieee80211_scan_state_decision(struct ieee80211_local *local,
local->next_scan_state = SCAN_ENTER_OPER_CHANNEL;
else
local->next_scan_state = SCAN_SET_CHANNEL;
- } else {
- /*
- * we're on the operating channel currently, let's
- * leave that channel now to scan another one
- */
- local->next_scan_state = SCAN_LEAVE_OPER_CHANNEL;
}
*next_delay = 0;
@@ -534,9 +560,10 @@ static void ieee80211_scan_state_decision(struct ieee80211_local *local,
static void ieee80211_scan_state_leave_oper_channel(struct ieee80211_local *local,
unsigned long *next_delay)
{
- ieee80211_offchannel_stop_station(local);
-
- __set_bit(SCAN_OFF_CHANNEL, &local->scanning);
+ /* PS will already be in off-channel mode,
+ * we do that once at the beginning of scanning.
+ */
+ ieee80211_offchannel_stop_vifs(local, false);
/*
* What if the nullfunc frames didn't arrive?
@@ -559,15 +586,15 @@ static void ieee80211_scan_state_enter_oper_channel(struct ieee80211_local *loca
{
/* switch back to the operating channel */
local->scan_channel = NULL;
- ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
+ if (!ieee80211_cfg_on_oper_channel(local))
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
/*
- * Only re-enable station mode interface now; beaconing will be
- * re-enabled once the full scan has been completed.
+ * Re-enable vifs and beaconing. Leave PS
+ * in off-channel state..will put that back
+ * on-channel at the end of scanning.
*/
- ieee80211_offchannel_return(local, false);
-
- __clear_bit(SCAN_OFF_CHANNEL, &local->scanning);
+ ieee80211_offchannel_return(local, true, false);
*next_delay = HZ / 5;
local->next_scan_state = SCAN_DECISION;
@@ -583,8 +610,11 @@ static void ieee80211_scan_state_set_channel(struct ieee80211_local *local,
chan = local->scan_req->channels[local->scan_channel_idx];
local->scan_channel = chan;
- if (ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL))
- skip = 1;
+
+ /* Only call hw-config if we really need to change channels. */
+ if (chan != local->hw.conf.channel)
+ if (ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL))
+ skip = 1;
/* advance state machine to next channel/band */
local->scan_channel_idx++;
@@ -642,12 +672,14 @@ void ieee80211_scan_work(struct work_struct *work)
{
struct ieee80211_local *local =
container_of(work, struct ieee80211_local, scan_work.work);
- struct ieee80211_sub_if_data *sdata = local->scan_sdata;
+ struct ieee80211_sub_if_data *sdata;
unsigned long next_delay = 0;
- bool aborted, hw_scan, finish;
+ bool aborted, hw_scan;
mutex_lock(&local->mtx);
+ sdata = local->scan_sdata;
+
if (test_and_clear_bit(SCAN_COMPLETED, &local->scanning)) {
aborted = test_and_clear_bit(SCAN_ABORTED, &local->scanning);
goto out_complete;
@@ -711,17 +743,11 @@ void ieee80211_scan_work(struct work_struct *work)
} while (next_delay == 0);
ieee80211_queue_delayed_work(&local->hw, &local->scan_work, next_delay);
- mutex_unlock(&local->mtx);
- return;
+ goto out;
out_complete:
hw_scan = test_bit(SCAN_HW_SCANNING, &local->scanning);
- finish = __ieee80211_scan_completed(&local->hw, aborted, hw_scan);
- mutex_unlock(&local->mtx);
- if (finish)
- __ieee80211_scan_completed_finish(&local->hw, hw_scan);
- return;
-
+ __ieee80211_scan_completed(&local->hw, aborted, hw_scan);
out:
mutex_unlock(&local->mtx);
}
@@ -791,7 +817,6 @@ int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
void ieee80211_scan_cancel(struct ieee80211_local *local)
{
bool abortscan;
- bool finish = false;
/*
* We are only canceling software scan, or deferred scan that was not
@@ -811,14 +836,17 @@ void ieee80211_scan_cancel(struct ieee80211_local *local)
mutex_lock(&local->mtx);
abortscan = local->scan_req && !test_bit(SCAN_HW_SCANNING, &local->scanning);
- if (abortscan)
- finish = __ieee80211_scan_completed(&local->hw, true, false);
- mutex_unlock(&local->mtx);
-
if (abortscan) {
- /* The scan is canceled, but stop work from being pending */
- cancel_delayed_work_sync(&local->scan_work);
+ /*
+ * The scan is canceled, but stop work from being pending.
+ *
+ * If the work is currently running, it must be blocked on
+ * the mutex, but we'll set scan_sdata = NULL and it'll
+ * simply exit once it acquires the mutex.
+ */
+ cancel_delayed_work(&local->scan_work);
+ /* and clean up */
+ __ieee80211_scan_completed(&local->hw, true, false);
}
- if (finish)
- __ieee80211_scan_completed_finish(&local->hw, false);
+ mutex_unlock(&local->mtx);
}
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index c426504..5a11078 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -899,7 +899,8 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)
struct ieee80211_local *local = sdata->local;
int sent, buffered;
- drv_sta_notify(local, sdata, STA_NOTIFY_AWAKE, &sta->sta);
+ if (!(local->hw.flags & IEEE80211_HW_AP_LINK_PS))
+ drv_sta_notify(local, sdata, STA_NOTIFY_AWAKE, &sta->sta);
if (!skb_queue_empty(&sta->ps_tx_buf))
sta_info_clear_tim_bit(sta);
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index bbdd2a8..5768114 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -82,6 +82,7 @@ enum ieee80211_sta_info_flags {
* @state: session state (see above)
* @stop_initiator: initiator of a session stop
* @tx_stop: TX DelBA frame when stopping
+ * @buf_size: reorder buffer size at receiver
*
* This structure's lifetime is managed by RCU, assignments to
* the array holding it must hold the aggregation mutex.
@@ -101,6 +102,7 @@ struct tid_ampdu_tx {
u8 dialog_token;
u8 stop_initiator;
bool tx_stop;
+ u8 buf_size;
};
/**
@@ -207,6 +209,8 @@ enum plink_state {
* @rate_ctrl_priv: rate control private per-STA pointer
* @last_tx_rate: rate used for last transmit, to report to userspace as
* "the" transmit rate
+ * @last_rx_rate_idx: rx status rate index of the last data packet
+ * @last_rx_rate_flag: rx status flag of the last data packet
* @lock: used for locking all fields that require locking, see comments
* in the header file.
* @flaglock: spinlock for flags accesses
@@ -309,6 +313,8 @@ struct sta_info {
unsigned long tx_bytes;
unsigned long tx_fragments;
struct ieee80211_tx_rate last_tx_rate;
+ int last_rx_rate_idx;
+ int last_rx_rate_flag;
u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1];
/*
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 071ac95..b936dd2 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -98,6 +98,10 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
* (b) always process RX events before TX status events if ordering
* can be unknown, for example with different interrupt status
* bits.
+ * (c) if PS mode transitions are manual (i.e. the flag
+ * %IEEE80211_HW_AP_LINK_PS is set), always process PS state
+ * changes before calling TX status events if ordering can be
+ * unknown.
*/
if (test_sta_flags(sta, WLAN_STA_PS_STA) &&
skb_queue_len(&sta->tx_filtered) < STA_MAX_TX_BUFFER) {
@@ -314,8 +318,6 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
if (info->flags & IEEE80211_TX_STAT_ACK) {
local->ps_sdata->u.mgd.flags |=
IEEE80211_STA_NULLFUNC_ACKED;
- ieee80211_queue_work(&local->hw,
- &local->dynamic_ps_enable_work);
} else
mod_timer(&local->dynamic_ps_timer, jiffies +
msecs_to_jiffies(10));
@@ -339,6 +341,10 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
cookie = local->hw_roc_cookie ^ 2;
local->hw_roc_skb_for_status = NULL;
}
+
+ if (cookie == local->hw_offchan_tx_cookie)
+ local->hw_offchan_tx_cookie = 0;
+
cfg80211_mgmt_tx_status(
skb->dev, cookie, skb->data, skb->len,
!!(info->flags & IEEE80211_TX_STAT_ACK), GFP_ATOMIC);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index b0beaa5..081dcaf 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -33,10 +33,6 @@
#include "wme.h"
#include "rate.h"
-#define IEEE80211_TX_OK 0
-#define IEEE80211_TX_AGAIN 1
-#define IEEE80211_TX_PENDING 2
-
/* misc utils */
static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr,
@@ -236,6 +232,7 @@ ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx)
if (local->hw.conf.flags & IEEE80211_CONF_PS) {
ieee80211_stop_queues_by_reason(&local->hw,
IEEE80211_QUEUE_STOP_REASON_PS);
+ ifmgd->flags &= ~IEEE80211_STA_NULLFUNC_ACKED;
ieee80211_queue_work(&local->hw,
&local->dynamic_ps_disable_work);
}
@@ -257,7 +254,8 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
if (unlikely(info->flags & IEEE80211_TX_CTL_INJECTED))
return TX_CONTINUE;
- if (unlikely(test_bit(SCAN_OFF_CHANNEL, &tx->local->scanning)) &&
+ if (unlikely(test_bit(SCAN_SW_SCANNING, &tx->local->scanning)) &&
+ test_bit(SDATA_STATE_OFFCHANNEL, &tx->sdata->state) &&
!ieee80211_is_probe_req(hdr->frame_control) &&
!ieee80211_is_nullfunc(hdr->frame_control))
/*
@@ -1283,16 +1281,17 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
return TX_CONTINUE;
}
-static int __ieee80211_tx(struct ieee80211_local *local,
- struct sk_buff **skbp,
- struct sta_info *sta,
- bool txpending)
+/*
+ * Returns false if the frame couldn't be transmitted but was queued instead.
+ */
+static bool __ieee80211_tx(struct ieee80211_local *local, struct sk_buff **skbp,
+ struct sta_info *sta, bool txpending)
{
struct sk_buff *skb = *skbp, *next;
struct ieee80211_tx_info *info;
struct ieee80211_sub_if_data *sdata;
unsigned long flags;
- int ret, len;
+ int len;
bool fragm = false;
while (skb) {
@@ -1300,13 +1299,37 @@ static int __ieee80211_tx(struct ieee80211_local *local,
__le16 fc;
spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
- ret = IEEE80211_TX_OK;
if (local->queue_stop_reasons[q] ||
- (!txpending && !skb_queue_empty(&local->pending[q])))
- ret = IEEE80211_TX_PENDING;
+ (!txpending && !skb_queue_empty(&local->pending[q]))) {
+ /*
+ * Since queue is stopped, queue up frames for later
+ * transmission from the tx-pending tasklet when the
+ * queue is woken again.
+ */
+
+ do {
+ next = skb->next;
+ skb->next = NULL;
+ /*
+ * NB: If txpending is true, next must already
+ * be NULL since we must've gone through this
+ * loop before already; therefore we can just
+ * queue the frame to the head without worrying
+ * about reordering of fragments.
+ */
+ if (unlikely(txpending))
+ __skb_queue_head(&local->pending[q],
+ skb);
+ else
+ __skb_queue_tail(&local->pending[q],
+ skb);
+ } while ((skb = next));
+
+ spin_unlock_irqrestore(&local->queue_stop_reason_lock,
+ flags);
+ return false;
+ }
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
- if (ret != IEEE80211_TX_OK)
- return ret;
info = IEEE80211_SKB_CB(skb);
@@ -1341,15 +1364,7 @@ static int __ieee80211_tx(struct ieee80211_local *local,
info->control.sta = NULL;
fc = ((struct ieee80211_hdr *)skb->data)->frame_control;
- ret = drv_tx(local, skb);
- if (WARN_ON(ret != NETDEV_TX_OK && skb->len != len)) {
- dev_kfree_skb(skb);
- ret = NETDEV_TX_OK;
- }
- if (ret != NETDEV_TX_OK) {
- info->control.vif = &sdata->vif;
- return IEEE80211_TX_AGAIN;
- }
+ drv_tx(local, skb);
ieee80211_tpt_led_trig_tx(local, fc, len);
*skbp = skb = next;
@@ -1357,7 +1372,7 @@ static int __ieee80211_tx(struct ieee80211_local *local,
fragm = true;
}
- return IEEE80211_TX_OK;
+ return true;
}
/*
@@ -1394,7 +1409,8 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
/* handlers after fragment must be aware of tx info fragmentation! */
CALL_TXH(ieee80211_tx_h_stats);
CALL_TXH(ieee80211_tx_h_encrypt);
- CALL_TXH(ieee80211_tx_h_calculate_duration);
+ if (!(tx->local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL))
+ CALL_TXH(ieee80211_tx_h_calculate_duration);
#undef CALL_TXH
txh_done:
@@ -1416,23 +1432,24 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
return 0;
}
-static void ieee80211_tx(struct ieee80211_sub_if_data *sdata,
+/*
+ * Returns false if the frame couldn't be transmitted but was queued instead.
+ */
+static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb, bool txpending)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_data tx;
ieee80211_tx_result res_prepare;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct sk_buff *next;
- unsigned long flags;
- int ret, retries;
u16 queue;
+ bool result = true;
queue = skb_get_queue_mapping(skb);
if (unlikely(skb->len < 10)) {
dev_kfree_skb(skb);
- return;
+ return true;
}
rcu_read_lock();
@@ -1442,85 +1459,19 @@ static void ieee80211_tx(struct ieee80211_sub_if_data *sdata,
if (unlikely(res_prepare == TX_DROP)) {
dev_kfree_skb(skb);
- rcu_read_unlock();
- return;
+ goto out;
} else if (unlikely(res_prepare == TX_QUEUED)) {
- rcu_read_unlock();
- return;
+ goto out;
}
tx.channel = local->hw.conf.channel;
info->band = tx.channel->band;
- if (invoke_tx_handlers(&tx))
- goto out;
-
- retries = 0;
- retry:
- ret = __ieee80211_tx(local, &tx.skb, tx.sta, txpending);
- switch (ret) {
- case IEEE80211_TX_OK:
- break;
- case IEEE80211_TX_AGAIN:
- /*
- * Since there are no fragmented frames on A-MPDU
- * queues, there's no reason for a driver to reject
- * a frame there, warn and drop it.
- */
- if (WARN_ON(info->flags & IEEE80211_TX_CTL_AMPDU))
- goto drop;
- /* fall through */
- case IEEE80211_TX_PENDING:
- skb = tx.skb;
-
- spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
-
- if (local->queue_stop_reasons[queue] ||
- !skb_queue_empty(&local->pending[queue])) {
- /*
- * if queue is stopped, queue up frames for later
- * transmission from the tasklet
- */
- do {
- next = skb->next;
- skb->next = NULL;
- if (unlikely(txpending))
- __skb_queue_head(&local->pending[queue],
- skb);
- else
- __skb_queue_tail(&local->pending[queue],
- skb);
- } while ((skb = next));
-
- spin_unlock_irqrestore(&local->queue_stop_reason_lock,
- flags);
- } else {
- /*
- * otherwise retry, but this is a race condition or
- * a driver bug (which we warn about if it persists)
- */
- spin_unlock_irqrestore(&local->queue_stop_reason_lock,
- flags);
-
- retries++;
- if (WARN(retries > 10, "tx refused but queue active\n"))
- goto drop;
- goto retry;
- }
- }
+ if (!invoke_tx_handlers(&tx))
+ result = __ieee80211_tx(local, &tx.skb, tx.sta, txpending);
out:
rcu_read_unlock();
- return;
-
- drop:
- rcu_read_unlock();
-
- skb = tx.skb;
- while (skb) {
- next = skb->next;
- dev_kfree_skb(skb);
- skb = next;
- }
+ return result;
}
/* device xmit handlers */
@@ -1750,7 +1701,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
__le16 fc;
struct ieee80211_hdr hdr;
struct ieee80211s_hdr mesh_hdr __maybe_unused;
- struct mesh_path *mppath = NULL;
+ struct mesh_path __maybe_unused *mppath = NULL;
const u8 *encaps_data;
int encaps_len, skip_header_bytes;
int nh_pos, h_pos;
@@ -1815,19 +1766,19 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
mppath = mpp_path_lookup(skb->data, sdata);
/*
- * Do not use address extension, if it is a packet from
- * the same interface and the destination is not being
- * proxied by any other mest point.
+ * Use address extension if it is a packet from
+ * another interface or if we know the destination
+ * is being proxied by a portal (i.e. portal address
+ * differs from proxied address)
*/
if (compare_ether_addr(sdata->vif.addr,
skb->data + ETH_ALEN) == 0 &&
- (!mppath || !compare_ether_addr(mppath->mpp, skb->data))) {
+ !(mppath && compare_ether_addr(mppath->mpp, skb->data))) {
hdrlen = ieee80211_fill_mesh_addresses(&hdr, &fc,
skb->data, skb->data + ETH_ALEN);
meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr,
sdata, NULL, NULL);
} else {
- /* packet from other interface */
int is_mesh_mcast = 1;
const u8 *mesh_da;
@@ -2067,6 +2018,11 @@ void ieee80211_clear_tx_pending(struct ieee80211_local *local)
skb_queue_purge(&local->pending[i]);
}
+/*
+ * Returns false if the frame couldn't be transmitted but was queued instead,
+ * which in this case means re-queued -- take as an indication to stop sending
+ * more pending frames.
+ */
static bool ieee80211_tx_pending_skb(struct ieee80211_local *local,
struct sk_buff *skb)
{
@@ -2074,20 +2030,17 @@ static bool ieee80211_tx_pending_skb(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata;
struct sta_info *sta;
struct ieee80211_hdr *hdr;
- int ret;
- bool result = true;
+ bool result;
sdata = vif_to_sdata(info->control.vif);
if (info->flags & IEEE80211_TX_INTFL_NEED_TXPROCESSING) {
- ieee80211_tx(sdata, skb, true);
+ result = ieee80211_tx(sdata, skb, true);
} else {
hdr = (struct ieee80211_hdr *)skb->data;
sta = sta_info_get(sdata, hdr->addr1);
- ret = __ieee80211_tx(local, &skb, sta, true);
- if (ret != IEEE80211_TX_OK)
- result = false;
+ result = __ieee80211_tx(local, &skb, sta, true);
}
return result;
@@ -2129,8 +2082,6 @@ void ieee80211_tx_pending(unsigned long data)
flags);
txok = ieee80211_tx_pending_skb(local, skb);
- if (!txok)
- __skb_queue_head(&local->pending[i], skb);
spin_lock_irqsave(&local->queue_stop_reason_lock,
flags);
if (!txok)
@@ -2178,6 +2129,8 @@ static void ieee80211_beacon_add_tim(struct ieee80211_if_ap *bss,
if (bss->dtim_count == 0 && !skb_queue_empty(&bss->ps_bc_buf))
aid0 = 1;
+ bss->dtim_bc_mc = aid0 == 1;
+
if (have_bits) {
/* Find largest even number N1 so that bits numbered 1 through
* (N1 x 8) - 1 in the bitmap are 0 and number N2 so that bits
@@ -2241,7 +2194,7 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
if (sdata->vif.type == NL80211_IFTYPE_AP) {
ap = &sdata->u.ap;
beacon = rcu_dereference(ap->beacon);
- if (ap && beacon) {
+ if (beacon) {
/*
* headroom, head length,
* tail length and maximum TIM length
@@ -2302,6 +2255,11 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
struct ieee80211_mgmt *mgmt;
u8 *pos;
+#ifdef CONFIG_MAC80211_MESH
+ if (!sdata->u.mesh.mesh_id_len)
+ goto out;
+#endif
+
/* headroom, head length, tail length and maximum TIM length */
skb = dev_alloc_skb(local->tx_headroom + 400 +
sdata->u.mesh.vendor_ie_len);
@@ -2543,7 +2501,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
if (sdata->vif.type != NL80211_IFTYPE_AP || !beacon || !beacon->head)
goto out;
- if (bss->dtim_count != 0)
+ if (bss->dtim_count != 0 || !bss->dtim_bc_mc)
goto out; /* send buffered bc/mc only after DTIM beacon */
while (1) {
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index d036597..556647a 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -986,12 +986,6 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
u16 cap = sband->ht_cap.cap;
__le16 tmp;
- if (ieee80211_disable_40mhz_24ghz &&
- sband->band == IEEE80211_BAND_2GHZ) {
- cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
- cap &= ~IEEE80211_HT_CAP_SGI_40;
- }
-
*pos++ = WLAN_EID_HT_CAPABILITY;
*pos++ = sizeof(struct ieee80211_ht_cap);
memset(pos, 0, sizeof(struct ieee80211_ht_cap));
diff --git a/net/mac80211/work.c b/net/mac80211/work.c
index 36305e0..e73c8ca 100644
--- a/net/mac80211/work.c
+++ b/net/mac80211/work.c
@@ -30,7 +30,6 @@
#define IEEE80211_AUTH_MAX_TRIES 3
#define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
#define IEEE80211_ASSOC_MAX_TRIES 3
-#define IEEE80211_MAX_PROBE_TRIES 5
enum work_action {
WORK_ACT_MISMATCH,
@@ -126,12 +125,6 @@ static void ieee80211_add_ht_ie(struct sk_buff *skb, const u8 *ht_info_ie,
/* determine capability flags */
- if (ieee80211_disable_40mhz_24ghz &&
- sband->band == IEEE80211_BAND_2GHZ) {
- cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
- cap &= ~IEEE80211_HT_CAP_SGI_40;
- }
-
switch (ht_info->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
if (flags & IEEE80211_CHAN_NO_HT40PLUS) {
@@ -874,6 +867,44 @@ static void ieee80211_work_rx_queued_mgmt(struct ieee80211_local *local,
kfree_skb(skb);
}
+static bool ieee80211_work_ct_coexists(enum nl80211_channel_type wk_ct,
+ enum nl80211_channel_type oper_ct)
+{
+ switch (wk_ct) {
+ case NL80211_CHAN_NO_HT:
+ return true;
+ case NL80211_CHAN_HT20:
+ if (oper_ct != NL80211_CHAN_NO_HT)
+ return true;
+ return false;
+ case NL80211_CHAN_HT40MINUS:
+ case NL80211_CHAN_HT40PLUS:
+ return (wk_ct == oper_ct);
+ }
+ WARN_ON(1); /* shouldn't get here */
+ return false;
+}
+
+static enum nl80211_channel_type
+ieee80211_calc_ct(enum nl80211_channel_type wk_ct,
+ enum nl80211_channel_type oper_ct)
+{
+ switch (wk_ct) {
+ case NL80211_CHAN_NO_HT:
+ return oper_ct;
+ case NL80211_CHAN_HT20:
+ if (oper_ct != NL80211_CHAN_NO_HT)
+ return oper_ct;
+ return wk_ct;
+ case NL80211_CHAN_HT40MINUS:
+ case NL80211_CHAN_HT40PLUS:
+ return wk_ct;
+ }
+ WARN_ON(1); /* shouldn't get here */
+ return wk_ct;
+}
+
+
static void ieee80211_work_timer(unsigned long data)
{
struct ieee80211_local *local = (void *) data;
@@ -924,18 +955,52 @@ static void ieee80211_work_work(struct work_struct *work)
}
if (!started && !local->tmp_channel) {
+ bool on_oper_chan;
+ bool tmp_chan_changed = false;
+ bool on_oper_chan2;
+ enum nl80211_channel_type wk_ct;
+ on_oper_chan = ieee80211_cfg_on_oper_channel(local);
+
+ /* Work with existing channel type if possible. */
+ wk_ct = wk->chan_type;
+ if (wk->chan == local->hw.conf.channel)
+ wk_ct = ieee80211_calc_ct(wk->chan_type,
+ local->hw.conf.channel_type);
+
+ if (local->tmp_channel)
+ if ((local->tmp_channel != wk->chan) ||
+ (local->tmp_channel_type != wk_ct))
+ tmp_chan_changed = true;
+
+ local->tmp_channel = wk->chan;
+ local->tmp_channel_type = wk_ct;
/*
- * TODO: could optimize this by leaving the
- * station vifs in awake mode if they
- * happen to be on the same channel as
- * the requested channel
+ * Leave the station vifs in awake mode if they
+ * happen to be on the same channel as
+ * the requested channel.
*/
- ieee80211_offchannel_stop_beaconing(local);
- ieee80211_offchannel_stop_station(local);
+ on_oper_chan2 = ieee80211_cfg_on_oper_channel(local);
+ if (on_oper_chan != on_oper_chan2) {
+ if (on_oper_chan2) {
+ /* going off oper channel, PS too */
+ ieee80211_offchannel_stop_vifs(local,
+ true);
+ ieee80211_hw_config(local, 0);
+ } else {
+ /* going on channel, but leave PS
+ * off-channel. */
+ ieee80211_hw_config(local, 0);
+ ieee80211_offchannel_return(local,
+ true,
+ false);
+ }
+ } else if (tmp_chan_changed)
+ /* Still off-channel, but on some other
+ * channel, so update hardware.
+ * PS should already be off-channel.
+ */
+ ieee80211_hw_config(local, 0);
- local->tmp_channel = wk->chan;
- local->tmp_channel_type = wk->chan_type;
- ieee80211_hw_config(local, 0);
started = true;
wk->timeout = jiffies;
}
@@ -1005,15 +1070,34 @@ static void ieee80211_work_work(struct work_struct *work)
continue;
if (wk->chan != local->tmp_channel)
continue;
- if (wk->chan_type != local->tmp_channel_type)
+ if (ieee80211_work_ct_coexists(wk->chan_type,
+ local->tmp_channel_type))
continue;
remain_off_channel = true;
}
if (!remain_off_channel && local->tmp_channel) {
+ bool on_oper_chan = ieee80211_cfg_on_oper_channel(local);
local->tmp_channel = NULL;
- ieee80211_hw_config(local, 0);
- ieee80211_offchannel_return(local, true);
+ /* If tmp_channel wasn't operating channel, then
+ * we need to go back on-channel.
+ * NOTE: If we can ever be here while scannning,
+ * or if the hw_config() channel config logic changes,
+ * then we may need to do a more thorough check to see if
+ * we still need to do a hardware config. Currently,
+ * we cannot be here while scanning, however.
+ */
+ if (ieee80211_cfg_on_oper_channel(local) && !on_oper_chan)
+ ieee80211_hw_config(local, 0);
+
+ /* At the least, we need to disable offchannel_ps,
+ * so just go ahead and run the entire offchannel
+ * return logic here. We *could* skip enabling
+ * beaconing if we were already on-oper-channel
+ * as a future optimization.
+ */
+ ieee80211_offchannel_return(local, true, true);
+
/* give connection some time to breathe */
run_again(local, jiffies + HZ/2);
}
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index bee230d..f1765de 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -26,13 +26,12 @@
ieee80211_tx_result
ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx)
{
- u8 *data, *key, *mic, key_offset;
+ u8 *data, *key, *mic;
size_t data_len;
unsigned int hdrlen;
struct ieee80211_hdr *hdr;
struct sk_buff *skb = tx->skb;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- int authenticator;
int tail;
hdr = (struct ieee80211_hdr *)skb->data;
@@ -47,6 +46,11 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx)
data = skb->data + hdrlen;
data_len = skb->len - hdrlen;
+ if (unlikely(info->flags & IEEE80211_TX_INTFL_TKIP_MIC_FAILURE)) {
+ /* Need to use software crypto for the test */
+ info->control.hw_key = NULL;
+ }
+
if (info->control.hw_key &&
!(tx->flags & IEEE80211_TX_FRAGMENTED) &&
!(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC)) {
@@ -62,17 +66,11 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx)
skb_headroom(skb) < TKIP_IV_LEN))
return TX_DROP;
-#if 0
- authenticator = fc & IEEE80211_FCTL_FROMDS; /* FIX */
-#else
- authenticator = 1;
-#endif
- key_offset = authenticator ?
- NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY :
- NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY;
- key = &tx->key->conf.key[key_offset];
+ key = &tx->key->conf.key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY];
mic = skb_put(skb, MICHAEL_MIC_LEN);
michael_mic(key, hdr, data, data_len, mic);
+ if (unlikely(info->flags & IEEE80211_TX_INTFL_TKIP_MIC_FAILURE))
+ mic[0]++;
return TX_CONTINUE;
}
@@ -81,14 +79,13 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx)
ieee80211_rx_result
ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx)
{
- u8 *data, *key = NULL, key_offset;
+ u8 *data, *key = NULL;
size_t data_len;
unsigned int hdrlen;
u8 mic[MICHAEL_MIC_LEN];
struct sk_buff *skb = rx->skb;
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- int authenticator = 1, wpa_test = 0;
/* No way to verify the MIC if the hardware stripped it */
if (status->flag & RX_FLAG_MMIC_STRIPPED)
@@ -106,17 +103,9 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx)
data = skb->data + hdrlen;
data_len = skb->len - hdrlen - MICHAEL_MIC_LEN;
-#if 0
- authenticator = fc & IEEE80211_FCTL_TODS; /* FIX */
-#else
- authenticator = 1;
-#endif
- key_offset = authenticator ?
- NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY :
- NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY;
- key = &rx->key->conf.key[key_offset];
+ key = &rx->key->conf.key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY];
michael_mic(key, hdr, data, data_len, mic);
- if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0 || wpa_test) {
+ if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0) {
if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
return RX_DROP_UNUSABLE;
@@ -208,7 +197,7 @@ ieee80211_rx_result
ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
- int hdrlen, res, hwaccel = 0, wpa_test = 0;
+ int hdrlen, res, hwaccel = 0;
struct ieee80211_key *key = rx->key;
struct sk_buff *skb = rx->skb;
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
@@ -235,7 +224,7 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx)
hdr->addr1, hwaccel, rx->queue,
&rx->tkip_iv32,
&rx->tkip_iv16);
- if (res != TKIP_DECRYPT_OK || wpa_test)
+ if (res != TKIP_DECRYPT_OK)
return RX_DROP_UNUSABLE;
/* Trim ICV */
generated by cgit v1.1 at 2024-05-19 05:49:52 +0000