Commit 6d854127 authored by Malcolm Priestley's avatar Malcolm Priestley Committed by Greg Kroah-Hartman
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staging: vt6655: vnt_rx_data add track rsr and new_rsr errors 



If not rsr & RSR_CRCOK report RX_FLAG_FAILED_FCS_CRC

If not rsr & (RSR_IVLDTYP | RSR_IVLDLEN) drop packet

If not NEWRSR_DECRYPTOK on new_rsr drop packet.

Signed-off-by: default avatarMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d17f4c8a

drivers/staging/vt6655/dpc.c

+10 −1
Original line number Diff line number Diff line
@@ -91,6 +91,8 @@ static bool vnt_rx_data(struct vnt_private *priv, struct sk_buff *skb, 
	new_rsr = skb_data + bytes_received - 3;

	rssi = skb_data + bytes_received - 2;

	rsr = skb_data + bytes_received - 1;

	if (*rsr & (RSR_IVLDTYP | RSR_IVLDLEN))

		return false;



	RFvRSSITodBm(priv, *rssi, &rx_dbm);
@@ -106,6 +108,9 @@ static bool vnt_rx_data(struct vnt_private *priv, struct sk_buff *skb, 
	rx_status.flag = 0;

	rx_status.freq = hw->conf.chandef.chan->center_freq;



	if (!(*rsr & RSR_CRCOK))

		rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;



	hdr = (struct ieee80211_hdr *)(skb->data);

	fc = hdr->frame_control;
@@ -113,7 +118,11 @@ static bool vnt_rx_data(struct vnt_private *priv, struct sk_buff *skb, 


	if (ieee80211_has_protected(fc)) {

		if (priv->byLocalID > REV_ID_VT3253_A1)

			rx_status.flag = RX_FLAG_DECRYPTED;

			rx_status.flag |= RX_FLAG_DECRYPTED;



		/* Drop packet */

		if (!(*new_rsr & NEWRSR_DECRYPTOK))

			return false;

	}



	memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));