diff options
Diffstat (limited to 'net/mac80211/tx.c')
| -rw-r--r-- | net/mac80211/tx.c | 107 |
1 files changed, 92 insertions, 15 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 70b5a05c0a4e..ca7fa7f0613d 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -463,7 +463,6 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) { struct sta_info *sta = tx->sta; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; struct ieee80211_local *local = tx->local; if (unlikely(!sta)) @@ -474,15 +473,6 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) !(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER))) { int ac = skb_get_queue_mapping(tx->skb); - /* only deauth, disassoc and action are bufferable MMPDUs */ - if (ieee80211_is_mgmt(hdr->frame_control) && - !ieee80211_is_deauth(hdr->frame_control) && - !ieee80211_is_disassoc(hdr->frame_control) && - !ieee80211_is_action(hdr->frame_control)) { - info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER; - return TX_CONTINUE; - } - ps_dbg(sta->sdata, "STA %pM aid %d: PS buffer for AC %d\n", sta->sta.addr, sta->sta.aid, ac); if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER) @@ -525,9 +515,22 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) static ieee80211_tx_result debug_noinline ieee80211_tx_h_ps_buf(struct ieee80211_tx_data *tx) { + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; + if (unlikely(tx->flags & IEEE80211_TX_PS_BUFFERED)) return TX_CONTINUE; + /* only deauth, disassoc and action are bufferable MMPDUs */ + if (ieee80211_is_mgmt(hdr->frame_control) && + !ieee80211_is_deauth(hdr->frame_control) && + !ieee80211_is_disassoc(hdr->frame_control) && + !ieee80211_is_action(hdr->frame_control)) { + if (tx->flags & IEEE80211_TX_UNICAST) + info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER; + return TX_CONTINUE; + } + if (tx->flags & IEEE80211_TX_UNICAST) return ieee80211_tx_h_unicast_ps_buf(tx); else @@ -1367,6 +1370,35 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx) return 0; } +bool ieee80211_tx_prepare_skb(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, struct sk_buff *skb, + int band, struct ieee80211_sta **sta) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_tx_data tx; + + if (ieee80211_tx_prepare(sdata, &tx, skb) == TX_DROP) + return false; + + info->band = band; + info->control.vif = vif; + info->hw_queue = vif->hw_queue[skb_get_queue_mapping(skb)]; + + if (invoke_tx_handlers(&tx)) + return false; + + if (sta) { + if (tx.sta) + *sta = &tx.sta->sta; + else + *sta = NULL; + } + + return true; +} +EXPORT_SYMBOL(ieee80211_tx_prepare_skb); + /* * Returns false if the frame couldn't be transmitted but was queued instead. */ @@ -1982,7 +2014,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, * EAPOL frames from the local station. */ if (unlikely(!ieee80211_vif_is_mesh(&sdata->vif) && - !is_multicast_ether_addr(hdr.addr1) && !authorized && + !multicast && !authorized && (cpu_to_be16(ethertype) != sdata->control_port_protocol || !ether_addr_equal(sdata->vif.addr, skb->data + ETH_ALEN)))) { #ifdef CONFIG_MAC80211_VERBOSE_DEBUG @@ -2358,15 +2390,35 @@ static void ieee80211_update_csa(struct ieee80211_sub_if_data *sdata, struct probe_resp *resp; int counter_offset_beacon = sdata->csa_counter_offset_beacon; int counter_offset_presp = sdata->csa_counter_offset_presp; + u8 *beacon_data; + size_t beacon_data_len; + + switch (sdata->vif.type) { + case NL80211_IFTYPE_AP: + beacon_data = beacon->tail; + beacon_data_len = beacon->tail_len; + break; + case NL80211_IFTYPE_ADHOC: + beacon_data = beacon->head; + beacon_data_len = beacon->head_len; + break; + case NL80211_IFTYPE_MESH_POINT: + beacon_data = beacon->head; + beacon_data_len = beacon->head_len; + break; + default: + return; + } + if (WARN_ON(counter_offset_beacon >= beacon_data_len)) + return; /* warn if the driver did not check for/react to csa completeness */ - if (WARN_ON(((u8 *)beacon->tail)[counter_offset_beacon] == 0)) + if (WARN_ON(beacon_data[counter_offset_beacon] == 0)) return; - ((u8 *)beacon->tail)[counter_offset_beacon]--; + beacon_data[counter_offset_beacon]--; - if (sdata->vif.type == NL80211_IFTYPE_AP && - counter_offset_presp) { + if (sdata->vif.type == NL80211_IFTYPE_AP && counter_offset_presp) { rcu_read_lock(); resp = rcu_dereference(sdata->u.ap.probe_resp); @@ -2401,6 +2453,24 @@ bool ieee80211_csa_is_complete(struct ieee80211_vif *vif) goto out; beacon_data = beacon->tail; beacon_data_len = beacon->tail_len; + } else if (vif->type == NL80211_IFTYPE_ADHOC) { + struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; + + beacon = rcu_dereference(ifibss->presp); + if (!beacon) + goto out; + + beacon_data = beacon->head; + beacon_data_len = beacon->head_len; + } else if (vif->type == NL80211_IFTYPE_MESH_POINT) { + struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; + + beacon = rcu_dereference(ifmsh->beacon); + if (!beacon) + goto out; + + beacon_data = beacon->head; + beacon_data_len = beacon->head_len; } else { WARN_ON(1); goto out; @@ -2485,6 +2555,10 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, if (!presp) goto out; + if (sdata->vif.csa_active) + ieee80211_update_csa(sdata, presp); + + skb = dev_alloc_skb(local->tx_headroom + presp->head_len); if (!skb) goto out; @@ -2502,6 +2576,9 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, if (!bcn) goto out; + if (sdata->vif.csa_active) + ieee80211_update_csa(sdata, bcn); + if (ifmsh->sync_ops) ifmsh->sync_ops->adjust_tbtt( sdata); |