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ath10k: drop beacon and probe response which leak from other channel

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When scan request on channel 1, it also receive beacon from other
channels, and the beacon also indicate to mac80211 and wpa_supplicant,
and then the bss info appears in radio measurement report of radio
measurement sent from wpa_supplicant, thus lead RRM case fail.

This is to drop the beacon and probe response which is not the same
channel of scanning.

Tested-on: QCA6174 hw3.2 SDIO WLAN.RMH.4.4.1-00049

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211208061752.16564-1-quic_wgong@quicinc.com
This commit is contained in:
Wen Gong 2021-12-08 01:17:52 -05:00 committed by Kalle Valo
parent d3d358efc5
commit 3bf2537ec2
1 changed files with 26 additions and 1 deletions
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27
drivers/net/wireless/ath/ath10k/wmi.c
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@ -2611,9 +2611,30 @@ int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb)
ath10k_mac_handle_beacon(ar, skb);
if (ieee80211_is_beacon(hdr->frame_control) ||
ieee80211_is_probe_resp(hdr->frame_control))
ieee80211_is_probe_resp(hdr->frame_control)) {
struct ieee80211_mgmt *mgmt = (void *)skb->data;
u8 *ies;
int ies_ch;
status->boottime_ns = ktime_get_boottime_ns();
if (!ar->scan_channel)
goto drop;
ies = mgmt->u.beacon.variable;
ies_ch = cfg80211_get_ies_channel_number(mgmt->u.beacon.variable,
skb_tail_pointer(skb) - ies,
sband->band);
if (ies_ch > 0 && ies_ch != channel) {
ath10k_dbg(ar, ATH10K_DBG_MGMT,
"channel mismatched ds channel %d scan channel %d\n",
ies_ch, channel);
goto drop;
}
}
ath10k_dbg(ar, ATH10K_DBG_MGMT,
"event mgmt rx skb %pK len %d ftype %02x stype %02x\n",
skb, skb->len,
@ -2627,6 +2648,10 @@ int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb)
ieee80211_rx_ni(ar->hw, skb);
return 0;
drop:
dev_kfree_skb(skb);
return 0;
}
static int freq_to_idx(struct ath10k *ar, int freq)