mac80211: add ieee80211_is_any_nullfunc()
commit08a5bdde38
("mac80211: consider QoS Null frames for STA_NULLFUNC_ACKED") Fixed a bug where we failed to take into account a nullfunc frame can be either non-QoS or QoS. It turns out there is at least one more bug in ieee80211_sta_tx_notify(), introduced in commit7b6ddeaf27
("mac80211: use QoS NDP for AP probing"), where we forgot to check for the QoS variant and so assumed the QoS nullfunc frame never went out Fix this by adding a helper ieee80211_is_any_nullfunc() which consolidates the check for non-QoS and QoS nullfunc frames. Replace existing compound conditionals and add a couple more missing checks for QoS variant. Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com> Link: https://lore.kernel.org/r/20200114055940.18502-3-thomas@adapt-ip.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Родитель
01afc6fedf
Коммит
30b2f0be23
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@ -619,6 +619,15 @@ static inline bool ieee80211_is_qos_nullfunc(__le16 fc)
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cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
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}
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/**
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* ieee80211_is_any_nullfunc - check if frame is regular or QoS nullfunc frame
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* @fc: frame control bytes in little-endian byteorder
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*/
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static inline bool ieee80211_is_any_nullfunc(__le16 fc)
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{
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return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc));
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}
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/**
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* ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
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* @fc: frame control field in little-endian byteorder
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@ -2460,7 +2460,7 @@ void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
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if (!ieee80211_is_data(hdr->frame_control))
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return;
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if (ieee80211_is_nullfunc(hdr->frame_control) &&
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if (ieee80211_is_any_nullfunc(hdr->frame_control) &&
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sdata->u.mgd.probe_send_count > 0) {
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if (ack)
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ieee80211_sta_reset_conn_monitor(sdata);
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@ -1450,8 +1450,7 @@ ieee80211_rx_h_check_dup(struct ieee80211_rx_data *rx)
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return RX_CONTINUE;
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if (ieee80211_is_ctl(hdr->frame_control) ||
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ieee80211_is_nullfunc(hdr->frame_control) ||
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ieee80211_is_qos_nullfunc(hdr->frame_control) ||
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ieee80211_is_any_nullfunc(hdr->frame_control) ||
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is_multicast_ether_addr(hdr->addr1))
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return RX_CONTINUE;
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@ -1838,8 +1837,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
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* Drop (qos-)data::nullfunc frames silently, since they
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* are used only to control station power saving mode.
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*/
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if (ieee80211_is_nullfunc(hdr->frame_control) ||
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ieee80211_is_qos_nullfunc(hdr->frame_control)) {
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if (ieee80211_is_any_nullfunc(hdr->frame_control)) {
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I802_DEBUG_INC(rx->local->rx_handlers_drop_nullfunc);
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/*
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@ -2319,7 +2317,7 @@ static int ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc)
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/* Drop unencrypted frames if key is set. */
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if (unlikely(!ieee80211_has_protected(fc) &&
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!ieee80211_is_nullfunc(fc) &&
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!ieee80211_is_any_nullfunc(fc) &&
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ieee80211_is_data(fc) && rx->key))
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return -EACCES;
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@ -643,8 +643,7 @@ static void ieee80211_report_ack_skb(struct ieee80211_local *local,
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rcu_read_lock();
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sdata = ieee80211_sdata_from_skb(local, skb);
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if (sdata) {
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if (ieee80211_is_nullfunc(hdr->frame_control) ||
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ieee80211_is_qos_nullfunc(hdr->frame_control))
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if (ieee80211_is_any_nullfunc(hdr->frame_control))
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cfg80211_probe_status(sdata->dev, hdr->addr1,
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cookie, acked,
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info->status.ack_signal,
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@ -1061,7 +1060,7 @@ static void __ieee80211_tx_status(struct ieee80211_hw *hw,
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I802_DEBUG_INC(local->dot11FailedCount);
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}
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if ((ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) &&
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if (ieee80211_is_any_nullfunc(fc) &&
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ieee80211_has_pm(fc) &&
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ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS) &&
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!(info->flags & IEEE80211_TX_CTL_INJECTED) &&
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@ -297,7 +297,7 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
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if (unlikely(test_bit(SCAN_SW_SCANNING, &tx->local->scanning)) &&
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test_bit(SDATA_STATE_OFFCHANNEL, &tx->sdata->state) &&
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!ieee80211_is_probe_req(hdr->frame_control) &&
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!ieee80211_is_nullfunc(hdr->frame_control))
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!ieee80211_is_any_nullfunc(hdr->frame_control))
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/*
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* When software scanning only nullfunc frames (to notify
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* the sleep state to the AP) and probe requests (for the
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