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Diffstat (limited to 'net/mac80211/rx.c')
-rw-r--r--net/mac80211/rx.c174
1 files changed, 103 insertions, 71 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index cf6b121e1bbf..7175ae80c36a 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -26,10 +26,11 @@
#include "tkip.h"
#include "wme.h"
-u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
- struct tid_ampdu_rx *tid_agg_rx,
- struct sk_buff *skb, u16 mpdu_seq_num,
- int bar_req);
+static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
+ struct tid_ampdu_rx *tid_agg_rx,
+ struct sk_buff *skb,
+ u16 mpdu_seq_num,
+ int bar_req);
/*
* monitor mode reception
*
@@ -122,7 +123,6 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
/* radiotap header, set always present flags */
rthdr->it_present =
cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
- (1 << IEEE80211_RADIOTAP_RATE) |
(1 << IEEE80211_RADIOTAP_CHANNEL) |
(1 << IEEE80211_RADIOTAP_ANTENNA) |
(1 << IEEE80211_RADIOTAP_RX_FLAGS));
@@ -148,7 +148,19 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
pos++;
/* IEEE80211_RADIOTAP_RATE */
- *pos = rate->bitrate / 5;
+ 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)
+ */
+ *pos = 0;
+ } else {
+ rthdr->it_present |= (1 << IEEE80211_RADIOTAP_RATE);
+ *pos = rate->bitrate / 5;
+ }
pos++;
/* IEEE80211_RADIOTAP_CHANNEL */
@@ -653,13 +665,16 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
static void ap_sta_ps_start(struct sta_info *sta)
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
- DECLARE_MAC_BUF(mac);
+ struct ieee80211_local *local = sdata->local;
atomic_inc(&sdata->bss->num_sta_ps);
set_and_clear_sta_flags(sta, WLAN_STA_PS, WLAN_STA_PSPOLL);
+ if (local->ops->sta_notify)
+ local->ops->sta_notify(local_to_hw(local), &sdata->vif,
+ STA_NOTIFY_SLEEP, &sta->sta);
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA %s aid %d enters power save mode\n",
- sdata->dev->name, print_mac(mac, sta->sta.addr), sta->sta.aid);
+ printk(KERN_DEBUG "%s: STA %pM aid %d enters power save mode\n",
+ sdata->dev->name, sta->sta.addr, sta->sta.aid);
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
}
@@ -669,38 +684,37 @@ static int ap_sta_ps_end(struct sta_info *sta)
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
int sent = 0;
- struct ieee80211_tx_info *info;
- DECLARE_MAC_BUF(mac);
atomic_dec(&sdata->bss->num_sta_ps);
clear_sta_flags(sta, WLAN_STA_PS | WLAN_STA_PSPOLL);
+ if (local->ops->sta_notify)
+ local->ops->sta_notify(local_to_hw(local), &sdata->vif,
+ STA_NOTIFY_AWAKE, &sta->sta);
if (!skb_queue_empty(&sta->ps_tx_buf))
sta_info_clear_tim_bit(sta);
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA %s aid %d exits power save mode\n",
- sdata->dev->name, print_mac(mac, sta->sta.addr), sta->sta.aid);
+ printk(KERN_DEBUG "%s: STA %pM aid %d exits power save mode\n",
+ sdata->dev->name, sta->sta.addr, sta->sta.aid);
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
/* Send all buffered frames to the station */
while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
- info = IEEE80211_SKB_CB(skb);
sent++;
- info->flags |= IEEE80211_TX_CTL_REQUEUE;
+ skb->requeue = 1;
dev_queue_xmit(skb);
}
while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
- info = IEEE80211_SKB_CB(skb);
local->total_ps_buffered--;
sent++;
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA %s aid %d send PS frame "
+ printk(KERN_DEBUG "%s: STA %pM aid %d send PS frame "
"since STA not sleeping anymore\n", sdata->dev->name,
- print_mac(mac, sta->sta.addr), sta->sta.aid);
+ sta->sta.addr, sta->sta.aid);
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
- info->flags |= IEEE80211_TX_CTL_REQUEUE;
+ skb->requeue = 1;
dev_queue_xmit(skb);
}
@@ -745,17 +759,29 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
sta->last_qual = rx->status->qual;
sta->last_noise = rx->status->noise;
+ /*
+ * Change STA power saving mode only at the end of a frame
+ * exchange sequence.
+ */
if (!ieee80211_has_morefrags(hdr->frame_control) &&
(rx->sdata->vif.type == NL80211_IFTYPE_AP ||
rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN)) {
- /* Change STA power saving mode only in the end of a frame
- * exchange sequence */
- if (test_sta_flags(sta, WLAN_STA_PS) &&
- !ieee80211_has_pm(hdr->frame_control))
- rx->sent_ps_buffered += ap_sta_ps_end(sta);
- else if (!test_sta_flags(sta, WLAN_STA_PS) &&
- ieee80211_has_pm(hdr->frame_control))
- ap_sta_ps_start(sta);
+ if (test_sta_flags(sta, WLAN_STA_PS)) {
+ /*
+ * Ignore doze->wake transitions that are
+ * indicated by non-data frames, the standard
+ * is unclear here, but for example going to
+ * PS mode and then scanning would cause a
+ * doze->wake transition for the probe request,
+ * and that is clearly undesirable.
+ */
+ if (ieee80211_is_data(hdr->frame_control) &&
+ !ieee80211_has_pm(hdr->frame_control))
+ rx->sent_ps_buffered += ap_sta_ps_end(sta);
+ } else {
+ if (ieee80211_has_pm(hdr->frame_control))
+ ap_sta_ps_start(sta);
+ }
}
/* Drop data::nullfunc frames silently, since they are used only to
@@ -789,15 +815,12 @@ ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata,
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
struct ieee80211_hdr *hdr =
(struct ieee80211_hdr *) entry->skb_list.next->data;
- DECLARE_MAC_BUF(mac);
- DECLARE_MAC_BUF(mac2);
printk(KERN_DEBUG "%s: RX reassembly removed oldest "
"fragment entry (idx=%d age=%lu seq=%d last_frag=%d "
- "addr1=%s addr2=%s\n",
+ "addr1=%pM addr2=%pM\n",
sdata->dev->name, idx,
jiffies - entry->first_frag_time, entry->seq,
- entry->last_frag, print_mac(mac, hdr->addr1),
- print_mac(mac2, hdr->addr2));
+ entry->last_frag, hdr->addr1, hdr->addr2);
#endif
__skb_queue_purge(&entry->skb_list);
}
@@ -866,7 +889,6 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
unsigned int frag, seq;
struct ieee80211_fragment_entry *entry;
struct sk_buff *skb;
- DECLARE_MAC_BUF(mac);
hdr = (struct ieee80211_hdr *)rx->skb->data;
fc = hdr->frame_control;
@@ -970,7 +992,6 @@ ieee80211_rx_h_ps_poll(struct ieee80211_rx_data *rx)
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
struct sk_buff *skb;
int no_pending_pkts;
- DECLARE_MAC_BUF(mac);
__le16 fc = ((struct ieee80211_hdr *)rx->skb->data)->frame_control;
if (likely(!rx->sta || !ieee80211_is_pspoll(fc) ||
@@ -1001,8 +1022,8 @@ ieee80211_rx_h_ps_poll(struct ieee80211_rx_data *rx)
set_sta_flags(rx->sta, WLAN_STA_PSPOLL);
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "STA %s aid %d: PS Poll (entries after %d)\n",
- print_mac(mac, rx->sta->sta.addr), rx->sta->sta.aid,
+ printk(KERN_DEBUG "STA %pM aid %d: PS Poll (entries after %d)\n",
+ rx->sta->sta.addr, rx->sta->sta.aid,
skb_queue_len(&rx->sta->ps_tx_buf));
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
@@ -1025,9 +1046,9 @@ ieee80211_rx_h_ps_poll(struct ieee80211_rx_data *rx)
* Should we send it a null-func frame indicating we
* have nothing buffered for it?
*/
- printk(KERN_DEBUG "%s: STA %s sent PS Poll even "
+ printk(KERN_DEBUG "%s: STA %pM sent PS Poll even "
"though there are no buffered frames for it\n",
- rx->dev->name, print_mac(mac, rx->sta->sta.addr));
+ rx->dev->name, rx->sta->sta.addr);
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
}
@@ -1097,10 +1118,6 @@ ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
u8 src[ETH_ALEN] __aligned(2);
struct sk_buff *skb = rx->skb;
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- DECLARE_MAC_BUF(mac);
- DECLARE_MAC_BUF(mac2);
- DECLARE_MAC_BUF(mac3);
- DECLARE_MAC_BUF(mac4);
if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
return -1;
@@ -1279,7 +1296,6 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
int remaining, err;
u8 dst[ETH_ALEN];
u8 src[ETH_ALEN];
- DECLARE_MAC_BUF(mac);
if (unlikely(!ieee80211_is_data(fc)))
return RX_CONTINUE;
@@ -1552,14 +1568,6 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
if (len < IEEE80211_MIN_ACTION_SIZE + 1)
return RX_DROP_MONITOR;
- /*
- * FIXME: revisit this, I'm sure we should handle most
- * of these frames in other modes as well!
- */
- if (sdata->vif.type != NL80211_IFTYPE_STATION &&
- sdata->vif.type != NL80211_IFTYPE_ADHOC)
- return RX_CONTINUE;
-
switch (mgmt->u.action.category) {
case WLAN_CATEGORY_BACK:
switch (mgmt->u.action.u.addba_req.action_code) {
@@ -1632,8 +1640,6 @@ static void ieee80211_rx_michael_mic_report(struct net_device *dev,
{
int keyidx;
unsigned int hdrlen;
- DECLARE_MAC_BUF(mac);
- DECLARE_MAC_BUF(mac2);
hdrlen = ieee80211_hdrlen(hdr->frame_control);
if (rx->skb->len >= hdrlen + 4)
@@ -1854,10 +1860,15 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
if (!(sdata->dev->flags & IFF_PROMISC))
return 0;
rx->flags &= ~IEEE80211_RX_RA_MATCH;
- } else if (!rx->sta)
- rx->sta = ieee80211_ibss_add_sta(sdata, rx->skb,
- bssid, hdr->addr2,
- BIT(rx->status->rate_idx));
+ } else if (!rx->sta) {
+ int rate_idx;
+ if (rx->status->flag & RX_FLAG_HT)
+ rate_idx = 0; /* TODO: HT rates */
+ else
+ rate_idx = rx->status->rate_idx;
+ rx->sta = ieee80211_ibss_add_sta(sdata, bssid, hdr->addr2,
+ BIT(rate_idx));
+ }
break;
case NL80211_IFTYPE_MESH_POINT:
if (!multicast &&
@@ -2002,17 +2013,17 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
static inline int seq_less(u16 sq1, u16 sq2)
{
- return (((sq1 - sq2) & SEQ_MASK) > (SEQ_MODULO >> 1));
+ return ((sq1 - sq2) & SEQ_MASK) > (SEQ_MODULO >> 1);
}
static inline u16 seq_inc(u16 sq)
{
- return ((sq + 1) & SEQ_MASK);
+ return (sq + 1) & SEQ_MASK;
}
static inline u16 seq_sub(u16 sq1, u16 sq2)
{
- return ((sq1 - sq2) & SEQ_MASK);
+ return (sq1 - sq2) & SEQ_MASK;
}
@@ -2020,10 +2031,11 @@ static inline u16 seq_sub(u16 sq1, u16 sq2)
* As it function blongs to Rx path it must be called with
* the proper rcu_read_lock protection for its flow.
*/
-u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
- struct tid_ampdu_rx *tid_agg_rx,
- struct sk_buff *skb, u16 mpdu_seq_num,
- int bar_req)
+static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
+ struct tid_ampdu_rx *tid_agg_rx,
+ struct sk_buff *skb,
+ u16 mpdu_seq_num,
+ int bar_req)
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_rx_status status;
@@ -2062,7 +2074,13 @@ u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
tid_agg_rx->reorder_buf[index]->cb,
sizeof(status));
sband = local->hw.wiphy->bands[status.band];
- rate = &sband->bitrates[status.rate_idx];
+ if (status.flag & RX_FLAG_HT) {
+ /* TODO: HT rates */
+ rate = sband->bitrates;
+ } else {
+ rate = &sband->bitrates
+ [status.rate_idx];
+ }
__ieee80211_rx_handle_packet(hw,
tid_agg_rx->reorder_buf[index],
&status, rate);
@@ -2106,7 +2124,10 @@ u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
memcpy(&status, tid_agg_rx->reorder_buf[index]->cb,
sizeof(status));
sband = local->hw.wiphy->bands[status.band];
- rate = &sband->bitrates[status.rate_idx];
+ if (status.flag & RX_FLAG_HT)
+ rate = sband->bitrates; /* TODO: HT rates */
+ else
+ rate = &sband->bitrates[status.rate_idx];
__ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index],
&status, rate);
tid_agg_rx->stored_mpdu_num--;
@@ -2194,15 +2215,26 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
}
sband = local->hw.wiphy->bands[status->band];
-
- if (!sband ||
- status->rate_idx < 0 ||
- status->rate_idx >= sband->n_bitrates) {
+ if (!sband) {
WARN_ON(1);
return;
}
- rate = &sband->bitrates[status->rate_idx];
+ if (status->flag & RX_FLAG_HT) {
+ /* rate_idx is MCS index */
+ if (WARN_ON(status->rate_idx < 0 ||
+ status->rate_idx >= 76))
+ return;
+ /* HT rates are not in the table - use the highest legacy rate
+ * for now since other parts of mac80211 may not yet be fully
+ * MCS aware. */
+ rate = &sband->bitrates[sband->n_bitrates - 1];
+ } else {
+ if (WARN_ON(status->rate_idx < 0 ||
+ status->rate_idx >= sband->n_bitrates))
+ return;
+ rate = &sband->bitrates[status->rate_idx];
+ }
/*
* key references and virtual interfaces are protected using RCU