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ath10k: add handler for HTT_T2H_MSG_TYPE_SEC_IND event

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Add the handler for HTT_T2H_MSG_TYPE_SEC_IND event from firmware, which stores
PN for replay check implemented in the following patch.

Tested on QCA6174 SDIO with firmware WLAN.RMH.4.4.1-00007-QCARMSWP-1.

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Wen Gong 2019-04-26 09:41:08 +03:00 committed by Kalle Valo
parent e1bddde973
commit 28ce53b6cf
1 changed files with 46 additions and 0 deletions
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46
drivers/net/wireless/ath/ath10k/htt_rx.c
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@ -3267,6 +3267,51 @@ out:
rcu_read_unlock();
}
static int ath10k_htt_rx_pn_len(enum htt_security_types sec_type)
{
switch (sec_type) {
case HTT_SECURITY_TKIP:
case HTT_SECURITY_TKIP_NOMIC:
case HTT_SECURITY_AES_CCMP:
return 48;
default:
return 0;
}
}
static void ath10k_htt_rx_sec_ind_handler(struct ath10k *ar,
struct htt_security_indication *ev)
{
enum htt_txrx_sec_cast_type sec_index;
enum htt_security_types sec_type;
struct ath10k_peer *peer;
spin_lock_bh(&ar->data_lock);
peer = ath10k_peer_find_by_id(ar, __le16_to_cpu(ev->peer_id));
if (!peer) {
ath10k_warn(ar, "failed to find peer id %d for security indication",
__le16_to_cpu(ev->peer_id));
goto out;
}
sec_type = MS(ev->flags, HTT_SECURITY_TYPE);
if (ev->flags & HTT_SECURITY_IS_UNICAST)
sec_index = HTT_TXRX_SEC_UCAST;
else
sec_index = HTT_TXRX_SEC_MCAST;
peer->rx_pn[sec_index].sec_type = sec_type;
peer->rx_pn[sec_index].pn_len = ath10k_htt_rx_pn_len(sec_type);
memset(peer->tids_last_pn_valid, 0, sizeof(peer->tids_last_pn_valid));
memset(peer->tids_last_pn, 0, sizeof(peer->tids_last_pn));
out:
spin_unlock_bh(&ar->data_lock);
}
bool ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
{
struct ath10k_htt *htt = &ar->htt;
@ -3360,6 +3405,7 @@ bool ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
struct ath10k *ar = htt->ar;
struct htt_security_indication *ev = &resp->security_indication;
ath10k_htt_rx_sec_ind_handler(ar, ev);
ath10k_dbg(ar, ATH10K_DBG_HTT,
"sec ind peer_id %d unicast %d type %d\n",
__le16_to_cpu(ev->peer_id),