From: Kalle Valo <kvalo@codeaurora.org>
To: ath10k@lists.infradead.org
Cc: linux-wireless@vger.kernel.org, Wen Gong <wgong@codeaurora.org>
Subject: [PATCH 2/5] ath10k: add handler for HTT_T2H_MSG_TYPE_SEC_IND event
Date: Fri, 26 Apr 2019 09:41:08 +0300 [thread overview]
Message-ID: <1556260871-2919-3-git-send-email-kvalo@codeaurora.org> (raw)
In-Reply-To: <1556260871-2919-1-git-send-email-kvalo@codeaurora.org>
From: Wen Gong <wgong@codeaurora.org>
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>
---
drivers/net/wireless/ath/ath10k/htt_rx.c | 46 ++++++++++++++++++++++++++++++++
1 file changed, 46 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index f22840bbc389..cc2875d73bf0 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -3267,6 +3267,51 @@ static void ath10k_fetch_10_2_tx_stats(struct ath10k *ar, u8 *data)
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),
--
2.7.4
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next prev parent reply other threads:[~2019-04-26 6:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-26 6:41 [PATCH 0/5] ath10k: implement PN replay protection for SDIO Kalle Valo
2019-04-26 6:41 ` [PATCH 1/5] ath10k: add struct for high latency PN replay protection Kalle Valo
2019-04-29 14:39 ` Kalle Valo
2019-04-26 6:41 ` Kalle Valo [this message]
2019-04-26 6:41 ` [PATCH 3/5] ath10k: add PN replay protection for high latency devices Kalle Valo
2019-04-26 6:41 ` [PATCH 4/5] ath10k: add fragmentation handler " Kalle Valo
2019-04-26 6:41 ` [PATCH 5/5] ath10k: enable QCA6174 hw3.2 SDIO hardware Kalle Valo
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