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FROMLIST: wifi: ath10k: filter non-UTF testmode events #880

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FROMLIST: wifi: ath10k: filter non-UTF testmode events #880

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14 changes: 14 additions & 0 deletions drivers/net/wireless/ath/ath10k/testmode.c
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,14 @@ static const struct nla_policy ath10k_tm_policy[ATH10K_TM_ATTR_MAX + 1] = {
[ATH10K_TM_ATTR_VERSION_MINOR] = { .type = NLA_U32 },
};

static bool ath10k_tm_is_utf_event(u32 cmd_id)
{
return cmd_id == WMI_10X_PDEV_UTF_EVENTID ||
cmd_id == WMI_10_2_PDEV_UTF_EVENTID ||
cmd_id == WMI_10_4_PDEV_UTF_EVENTID ||
cmd_id == WMI_TLV_PDEV_UTF_EVENTID;
}

/* Returns true if callee consumes the skb and the skb should be discarded.
* Returns false if skb is not used. Does not sleep.
*/
Expand Down Expand Up @@ -53,6 +61,12 @@ bool ath10k_tm_event_wmi(struct ath10k *ar, u32 cmd_id, struct sk_buff *skb)
*/
consumed = true;

if (!ath10k_tm_is_utf_event(cmd_id)) {
ath10k_dbg(ar, ATH10K_DBG_TESTMODE,
"testmode drop non-utf event cmd_id %u\n", cmd_id);
goto out;
}

nl_skb = cfg80211_testmode_alloc_event_skb(ar->hw->wiphy,
2 * sizeof(u32) + skb->len,
GFP_ATOMIC);
Expand Down