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path: root/drivers/net/wireless/rt2x00/rt2x00dev.c
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Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00dev.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00dev.c30
1 files changed, 26 insertions, 4 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index f42283ad7b02..182952249a19 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -508,6 +508,15 @@ void rt2x00lib_txdone(struct queue_entry *entry,
rt2x00queue_unmap_skb(rt2x00dev, entry->skb);
/*
+ * If the IV/EIV data was stripped from the frame before it was
+ * passed to the hardware, we should now reinsert it again because
+ * mac80211 will expect the the same data to be present it the
+ * frame as it was passed to us.
+ */
+ if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags))
+ rt2x00crypto_tx_insert_iv(entry->skb);
+
+ /*
* Send frame to debugfs immediately, after this call is completed
* we are going to overwrite the skb->cb array.
*/
@@ -585,7 +594,7 @@ void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
struct ieee80211_supported_band *sband;
struct ieee80211_hdr *hdr;
const struct rt2x00_rate *rate;
- unsigned int header_size;
+ unsigned int header_length;
unsigned int align;
unsigned int i;
int idx = -1;
@@ -613,10 +622,19 @@ void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
* The data behind the ieee80211 header must be
* aligned on a 4 byte boundary.
*/
- header_size = ieee80211_get_hdrlen_from_skb(entry->skb);
- align = ((unsigned long)(entry->skb->data + header_size)) & 3;
+ header_length = ieee80211_get_hdrlen_from_skb(entry->skb);
+ align = ((unsigned long)(entry->skb->data + header_length)) & 3;
- if (align) {
+ /*
+ * Hardware might have stripped the IV/EIV/ICV data,
+ * in that case it is possible that the data was
+ * provided seperately (through hardware descriptor)
+ * in which case we should reinsert the data into the frame.
+ */
+ if ((rxdesc.flags & RX_FLAG_IV_STRIPPED)) {
+ rt2x00crypto_rx_insert_iv(entry->skb, align,
+ header_length, &rxdesc);
+ } else if (align) {
skb_push(entry->skb, align);
/* Move entire frame in 1 command */
memmove(entry->skb->data, entry->skb->data + align,
@@ -657,6 +675,10 @@ void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
(rxdesc.dev_flags & RXDONE_MY_BSS))
rt2x00lib_update_link_stats(&rt2x00dev->link, rxdesc.rssi);
+ rt2x00debug_update_crypto(rt2x00dev,
+ rxdesc.cipher,
+ rxdesc.cipher_status);
+
rt2x00dev->link.qual.rx_success++;
rx_status->mactime = rxdesc.timestamp;
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