diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 12:49:40 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 12:49:40 -0800 |
commit | 0191b625ca5a46206d2fb862bb08f36f2fcb3b31 (patch) | |
tree | 454d1842b1833d976da62abcbd5c47521ebe9bd7 /net/mac80211/rx.c | |
parent | 54a696bd07c14d3b1192d03ce7269bc59b45209a (diff) | |
parent | eb56092fc168bf5af199d47af50c0d84a96db898 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1429 commits)
net: Allow dependancies of FDDI & Tokenring to be modular.
igb: Fix build warning when DCA is disabled.
net: Fix warning fallout from recent NAPI interface changes.
gro: Fix potential use after free
sfc: If AN is enabled, always read speed/duplex from the AN advertising bits
sfc: When disabling the NIC, close the device rather than unregistering it
sfc: SFT9001: Add cable diagnostics
sfc: Add support for multiple PHY self-tests
sfc: Merge top-level functions for self-tests
sfc: Clean up PHY mode management in loopback self-test
sfc: Fix unreliable link detection in some loopback modes
sfc: Generate unique names for per-NIC workqueues
802.3ad: use standard ethhdr instead of ad_header
802.3ad: generalize out mac address initializer
802.3ad: initialize ports LACPDU from const initializer
802.3ad: remove typedef around ad_system
802.3ad: turn ports is_individual into a bool
802.3ad: turn ports is_enabled into a bool
802.3ad: make ntt bool
ixgbe: Fix set_ringparam in ixgbe to use the same memory pools.
...
Fixed trivial IPv4/6 address printing conflicts in fs/cifs/connect.c due
to the conversion to %pI (in this networking merge) and the addition of
doing IPv6 addresses (from the earlier merge of CIFS).
Diffstat (limited to 'net/mac80211/rx.c')
-rw-r--r-- | net/mac80211/rx.c | 174 |
1 files changed, 103 insertions, 71 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index cf6b121e1bb..7175ae80c36 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 |