* only useful for monitoring.
*/
static struct sk_buff *remove_monitor_info(struct ieee80211_local *local,
- struct sk_buff *skb,
- int rtap_len)
+ struct sk_buff *skb)
{
- skb_pull(skb, rtap_len);
-
if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) {
if (likely(skb->len > FCS_LEN))
skb_trim(skb, skb->len - FCS_LEN);
}
static inline int should_drop_frame(struct sk_buff *skb,
- int present_fcs_len,
- int radiotap_len)
+ int present_fcs_len)
{
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
return 1;
- if (unlikely(skb->len < 16 + present_fcs_len + radiotap_len))
+ if (unlikely(skb->len < 16 + present_fcs_len))
return 1;
if (ieee80211_is_ctl(hdr->frame_control) &&
!ieee80211_is_pspoll(hdr->frame_control) &&
if (len & 1) /* padding for RX_FLAGS if necessary */
len++;
- /* make sure radiotap starts at a naturally aligned address */
- if (len % 8)
- len = roundup(len, 8);
-
return len;
}
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_radiotap_header *rthdr;
unsigned char *pos;
+ u16 rx_flags = 0;
rthdr = (struct ieee80211_radiotap_header *)skb_push(skb, rtap_len);
memset(rthdr, 0, rtap_len);
/* IEEE80211_RADIOTAP_TSFT */
if (status->flag & RX_FLAG_TSFT) {
- *(__le64 *)pos = cpu_to_le64(status->mactime);
+ put_unaligned_le64(status->mactime, pos);
rthdr->it_present |=
cpu_to_le32(1 << IEEE80211_RADIOTAP_TSFT);
pos += 8;
pos++;
/* IEEE80211_RADIOTAP_CHANNEL */
- *(__le16 *)pos = cpu_to_le16(status->freq);
+ put_unaligned_le16(status->freq, pos);
pos += 2;
if (status->band == IEEE80211_BAND_5GHZ)
- *(__le16 *)pos = cpu_to_le16(IEEE80211_CHAN_OFDM |
- IEEE80211_CHAN_5GHZ);
+ put_unaligned_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ,
+ pos);
else if (rate->flags & IEEE80211_RATE_ERP_G)
- *(__le16 *)pos = cpu_to_le16(IEEE80211_CHAN_OFDM |
- IEEE80211_CHAN_2GHZ);
+ put_unaligned_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ,
+ pos);
else
- *(__le16 *)pos = cpu_to_le16(IEEE80211_CHAN_CCK |
- IEEE80211_CHAN_2GHZ);
+ put_unaligned_le16(IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ,
+ pos);
pos += 2;
/* IEEE80211_RADIOTAP_DBM_ANTSIGNAL */
/* IEEE80211_RADIOTAP_RX_FLAGS */
/* ensure 2 byte alignment for the 2 byte field as required */
- if ((pos - (unsigned char *)rthdr) & 1)
+ if ((pos - (u8 *)rthdr) & 1)
pos++;
if (status->flag & RX_FLAG_FAILED_PLCP_CRC)
- *(__le16 *)pos |= cpu_to_le16(IEEE80211_RADIOTAP_F_RX_BADPLCP);
+ rx_flags |= IEEE80211_RADIOTAP_F_RX_BADPLCP;
+ put_unaligned_le16(rx_flags, pos);
pos += 2;
}
struct sk_buff *skb, *skb2;
struct net_device *prev_dev = NULL;
int present_fcs_len = 0;
- int rtap_len = 0;
/*
* First, we may need to make a copy of the skb because
* We don't need to, of course, if we aren't going to return
* the SKB because it has a bad FCS/PLCP checksum.
*/
- if (status->flag & RX_FLAG_RADIOTAP)
- rtap_len = ieee80211_get_radiotap_len(origskb->data);
- else
- /* room for the radiotap header based on driver features */
- needed_headroom = ieee80211_rx_radiotap_len(local, status);
+
+ /* room for the radiotap header based on driver features */
+ needed_headroom = ieee80211_rx_radiotap_len(local, status);
if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
present_fcs_len = FCS_LEN;
if (!local->monitors) {
- if (should_drop_frame(origskb, present_fcs_len, rtap_len)) {
+ if (should_drop_frame(origskb, present_fcs_len)) {
dev_kfree_skb(origskb);
return NULL;
}
- return remove_monitor_info(local, origskb, rtap_len);
+ return remove_monitor_info(local, origskb);
}
- if (should_drop_frame(origskb, present_fcs_len, rtap_len)) {
+ if (should_drop_frame(origskb, present_fcs_len)) {
/* only need to expand headroom if necessary */
skb = origskb;
origskb = NULL;
*/
skb = skb_copy_expand(origskb, needed_headroom, 0, GFP_ATOMIC);
- origskb = remove_monitor_info(local, origskb, rtap_len);
+ origskb = remove_monitor_info(local, origskb);
if (!skb)
return origskb;
}
- /* if necessary, prepend radiotap information */
- if (!(status->flag & RX_FLAG_RADIOTAP))
- ieee80211_add_rx_radiotap_header(local, skb, rate,
- needed_headroom);
+ /* prepend radiotap information */
+ ieee80211_add_rx_radiotap_header(local, skb, rate, needed_headroom);
skb_reset_mac_header(skb);
skb->ip_summed = CHECKSUM_UNNECESSARY;
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
}
-static int ap_sta_ps_end(struct sta_info *sta)
+static void ap_sta_ps_end(struct sta_info *sta)
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
struct ieee80211_local *local = sdata->local;
"since STA not sleeping anymore\n", sdata->dev->name,
sta->sta.addr, sta->sta.aid, sent - buffered, buffered);
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-
- return sent;
}
static ieee80211_rx_result debug_noinline
sta->rx_fragments++;
sta->rx_bytes += rx->skb->len;
sta->last_signal = rx->status->signal;
- sta->last_qual = rx->status->qual;
sta->last_noise = rx->status->noise;
/*
*/
if (ieee80211_is_data(hdr->frame_control) &&
!ieee80211_has_pm(hdr->frame_control))
- rx->sent_ps_buffered += ap_sta_ps_end(sta);
+ 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
- * control station power saving mode. */
- if (ieee80211_is_nullfunc(hdr->frame_control)) {
+ /*
+ * Drop (qos-)data::nullfunc frames silently, since they
+ * are used only to control station power saving mode.
+ */
+ if (ieee80211_is_nullfunc(hdr->frame_control) ||
+ ieee80211_is_qos_nullfunc(hdr->frame_control)) {
I802_DEBUG_INC(rx->local->rx_handlers_drop_nullfunc);
- /* Update counter and free packet here to avoid counting this
- * as a dropped packed. */
+ /*
+ * Update counter and free packet here to avoid
+ * counting this as a dropped packed.
+ */
sta->rx_packets++;
dev_kfree_skb(rx->skb);
return RX_QUEUED;
if (no_pending_pkts)
sta_info_clear_tim_bit(rx->sta);
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- } else if (!rx->sent_ps_buffered) {
+ } else {
/*
* FIXME: This can be the result of a race condition between
* us expiring a frame and the station polling for it.
skb = NULL;
} else {
u8 *data = skb->data;
- size_t len = skb->len;
- u8 *new = __skb_push(skb, align);
- memmove(new, data, len);
- __skb_trim(skb, len);
+ size_t len = skb_headlen(skb);
+ skb->data -= align;
+ memmove(skb->data, data, len);
+ skb_set_tail_pointer(skb, len);
}
}
#endif
/* illegal frame */
return RX_DROP_MONITOR;
- if (!is_multicast_ether_addr(hdr->addr1) &&
- (mesh_hdr->flags & MESH_FLAGS_AE_A5_A6)) {
+ if (mesh_hdr->flags & MESH_FLAGS_AE) {
struct mesh_path *mppath;
+ char *proxied_addr;
+ char *mpp_addr;
+
+ if (is_multicast_ether_addr(hdr->addr1)) {
+ mpp_addr = hdr->addr3;
+ proxied_addr = mesh_hdr->eaddr1;
+ } else {
+ mpp_addr = hdr->addr4;
+ proxied_addr = mesh_hdr->eaddr2;
+ }
rcu_read_lock();
- mppath = mpp_path_lookup(mesh_hdr->eaddr2, sdata);
+ mppath = mpp_path_lookup(proxied_addr, sdata);
if (!mppath) {
- mpp_path_add(mesh_hdr->eaddr2, hdr->addr4, sdata);
+ mpp_path_add(proxied_addr, mpp_addr, sdata);
} else {
spin_lock_bh(&mppath->state_lock);
mppath->exp_time = jiffies;
- if (compare_ether_addr(mppath->mpp, hdr->addr4) != 0)
- memcpy(mppath->mpp, hdr->addr4, ETH_ALEN);
+ if (compare_ether_addr(mppath->mpp, mpp_addr) != 0)
+ memcpy(mppath->mpp, mpp_addr, ETH_ALEN);
spin_unlock_bh(&mppath->state_lock);
}
rcu_read_unlock();
skb = rx.skb;
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ if (rx.sdata && ieee80211_is_data(hdr->frame_control)) {
+ rx.flags |= IEEE80211_RX_RA_MATCH;
+ prepares = prepare_for_handlers(rx.sdata, &rx, hdr);
+ if (prepares)
+ prev = rx.sdata;
+ } else list_for_each_entry_rcu(sdata, &local->interfaces, list) {
if (!netif_running(sdata->dev))
continue;
- if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
+ if (sdata->vif.type == NL80211_IFTYPE_MONITOR ||
+ sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
continue;
rx.flags |= IEEE80211_RX_RA_MATCH;
struct ieee80211_supported_band *sband;
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+ WARN_ON_ONCE(softirq_count() == 0);
+
if (WARN_ON(status->band < 0 ||
status->band >= IEEE80211_NUM_BANDS))
goto drop;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff